S: Germany
N: Adrian Bunk
-E: bunk@stusta.de
P: 1024D/4F12B400 B29C E71E FE19 6755 5C8A 84D4 99FC EA98 4F12 B400
D: misc kernel hacking and testing
-S: Grasmeierstrasse 11
-S: 80805 Muenchen
-S: Germany
N: Ray Burr
E: ryb@nightmare.com
S: San Jose, California 95131
S: USA
+N: Adam Fritzler
+E: mid@zigamorph.net
+
N: Fernando Fuganti
E: fuganti@conectiva.com.br
E: fuganti@netbank.com.br
- request_firmware() hotplug interface info.
floppy.txt
- notes and driver options for the floppy disk driver.
-fujitsu/
+frv/
- Fujitsu FR-V Linux documentation.
gpio.txt
- overview of GPIO (General Purpose Input/Output) access conventions.
- a description of shared subtrees for namespaces.
smart-config.txt
- description of the Smart Config makefile feature.
-smp.txt
- - a few notes on symmetric multi-processing.
sony-laptop.txt
- Sony Notebook Control Driver (SNC) Readme.
sonypi.txt
[Sat Mar 2 10:32:33 PST 1996 KERNEL_BUG-HOWTO lm@sgi.com (Larry McVoy)]
-This is how to track down a bug if you know nothing about kernel hacking.
+This is how to track down a bug if you know nothing about kernel hacking.
It's a brute force approach but it works pretty well.
You need:
. Rebuild a revision that you believe works, install, and verify that.
. Do a binary search over the kernels to figure out which one
- introduced the bug. I.e., suppose 1.3.28 didn't have the bug, but
+ introduced the bug. I.e., suppose 1.3.28 didn't have the bug, but
you know that 1.3.69 does. Pick a kernel in the middle and build
that, like 1.3.50. Build & test; if it works, pick the mid point
between .50 and .69, else the mid point between .28 and .50.
. You'll narrow it down to the kernel that introduced the bug. You
- can probably do better than this but it gets tricky.
+ can probably do better than this but it gets tricky.
. Narrow it down to a subdirectory
directories:
Copy the non-working directory next to the working directory
- as "dir.63".
+ as "dir.63".
One directory at time, try moving the working directory to
- "dir.62" and mv dir.63 dir"time, try
+ "dir.62" and mv dir.63 dir"time, try
mv dir dir.62
mv dir.63 dir
find dir -name '*.[oa]' -print | xargs rm -f
And then rebuild and retest. Assuming that all related
- changes were contained in the sub directory, this should
- isolate the change to a directory.
+ changes were contained in the sub directory, this should
+ isolate the change to a directory.
Problems: changes in header files may have occurred; I've
- found in my case that they were self explanatory - you may
+ found in my case that they were self explanatory - you may
or may not want to give up when that happens.
. Narrow it down to a file
- You can apply the same technique to each file in the directory,
- hoping that the changes in that file are self contained.
-
+ hoping that the changes in that file are self contained.
+
. Narrow it down to a routine
- You can take the old file and the new file and manually create
that makes the difference.
Finally, you take all the info that you have, kernel revisions, bug
-description, the extent to which you have narrowed it down, and pass
+description, the extent to which you have narrowed it down, and pass
that off to whomever you believe is the maintainer of that section.
A post to linux.dev.kernel isn't such a bad idea if you've done some
work to narrow it down.
Exception: If your mailer is mangling patches then someone may ask
you to re-send them using MIME.
-
-WARNING: Some mailers like Mozilla send your messages with
----- message header ----
-Content-Type: text/plain; charset=us-ascii; format=flowed
----- message header ----
-The problem is that "format=flowed" makes some of the mailers
-on receiving side to replace TABs with spaces and do similar
-changes. Thus the patches from you can look corrupted.
-
-To fix this just make your mozilla defaults/pref/mailnews.js file to look like:
-pref("mailnews.send_plaintext_flowed", false); // RFC 2646=======
-pref("mailnews.display.disable_format_flowed_support", true);
-
-
+See Documentation/email-clients.txt for hints about configuring
+your e-mail client so that it sends your patches untouched.
8) E-mail size.
only needs occurs after the SMC IO write cycle. The routines that
implement this work-around make an additional concession which is to
disable interrupts during the IO sequence. Other hardware devices
-(the LogicPD CPLD) have registers in the same the physical memory
+(the LogicPD CPLD) have registers in the same physical memory
region as the SMC chip. An interrupt might allow an access to one of
those registers while SMC IO is being performed.
echo 'exec /sbin/modprobe "$@"' >> /tmp/modprobe
chmod a+x /tmp/modprobe
echo /tmp/modprobe > /proc/sys/kernel/modprobe
+
+Note that the above applies only when the *kernel* is requesting
+that the module be loaded -- it won't have any effect if that module
+is being loaded explicitly using "modprobe" from userspace.
using these calls except with such hotplug-deficient drivers.
struct platform_device *platform_device_alloc(
- char *name, unsigned id);
+ const char *name, int id);
You can use platform_device_alloc() to dynamically allocate a device, which
you will then initialize with resources and platform_device_register().
A better solution is usually:
struct platform_device *platform_device_register_simple(
- char *name, unsigned id,
- struct resource *res, unsigned nres);
+ const char *name, int id,
+ struct resource *res, unsigned int nres);
You can use platform_device_register_simple() as a one-step call to allocate
and register a device.
Rather than have a group where some items behave differently than
others, configfs provides a method whereby one or many subgroups are
automatically created inside the parent at its creation. Thus,
-mkdir("parent) results in "parent", "parent/subgroup1", up through
+mkdir("parent") results in "parent", "parent/subgroup1", up through
"parent/subgroupN". Items of type 1 can now be created in
"parent/subgroup1", and items of type N can be created in
"parent/subgroupN".
Changes since 2.5.0:
----
+---
[recommended]
New helpers: sb_bread(), sb_getblk(), sb_find_get_block(), set_bh(),
(sb_find_get_block() replaces 2.4's get_hash_table())
----
+---
[recommended]
New methods: ->alloc_inode() and ->destroy_inode().
Use FOO_I(inode) instead of &inode->u.foo_inode_i;
-Add foo_alloc_inode() and foo_destory_inode() - the former should allocate
+Add foo_alloc_inode() and foo_destroy_inode() - the former should allocate
foo_inode_info and return the address of ->vfs_inode, the latter should free
FOO_I(inode) (see in-tree filesystems for examples).
priority priority level
nice nice level
num_threads number of threads
+ it_real_value (obsolete, always 0)
start_time time the process started after system boot
vsize virtual memory size
rss resident set memory size
with the new root (cd /newmount; mount --move . /; chroot .), attach
stdin/stdout/stderr to the new /dev/console, and exec the new init.
- Since this is a remarkably persnickity process (and involves deleting
+ Since this is a remarkably persnickety process (and involves deleting
commands before you can run them), the klibc package introduced a helper
program (utils/run_init.c) to do all this for you. Most other packages
(such as busybox) have named this command "switch_root".
In order for a user application to make use of relay files, the
host filesystem must be mounted. For example,
- mount -t debugfs debugfs /debug
+ mount -t debugfs debugfs /sys/kernel/debug
NOTE: the host filesystem doesn't need to be mounted for kernel
clients to create or use channels - it only needs to be
(*) vdc=...
This option configures the MB93493 companion chip visual display
- driver. Please see Documentation/fujitsu/mb93493/vdc.txt for more
+ driver. Please see Documentation/frv/mb93493/vdc.txt for more
information.
--- /dev/null
+/*
+ * Ver 0.1 Nov 1 95 Pre-working code :-)
+ * Ver 0.2 Nov 23 95 A short backup (few megabytes) and restore procedure
+ * was successful ! (Using tar cvf ... on the block
+ * device interface).
+ * A longer backup resulted in major swapping, bad
+ * overall Linux performance and eventually failed as
+ * we received non serial read-ahead requests from the
+ * buffer cache.
+ * Ver 0.3 Nov 28 95 Long backups are now possible, thanks to the
+ * character device interface. Linux's responsiveness
+ * and performance doesn't seem to be much affected
+ * from the background backup procedure.
+ * Some general mtio.h magnetic tape operations are
+ * now supported by our character device. As a result,
+ * popular tape utilities are starting to work with
+ * ide tapes :-)
+ * The following configurations were tested:
+ * 1. An IDE ATAPI TAPE shares the same interface
+ * and irq with an IDE ATAPI CDROM.
+ * 2. An IDE ATAPI TAPE shares the same interface
+ * and irq with a normal IDE disk.
+ * Both configurations seemed to work just fine !
+ * However, to be on the safe side, it is meanwhile
+ * recommended to give the IDE TAPE its own interface
+ * and irq.
+ * The one thing which needs to be done here is to
+ * add a "request postpone" feature to ide.c,
+ * so that we won't have to wait for the tape to finish
+ * performing a long media access (DSC) request (such
+ * as a rewind) before we can access the other device
+ * on the same interface. This effect doesn't disturb
+ * normal operation most of the time because read/write
+ * requests are relatively fast, and once we are
+ * performing one tape r/w request, a lot of requests
+ * from the other device can be queued and ide.c will
+ * service all of them after this single tape request.
+ * Ver 1.0 Dec 11 95 Integrated into Linux 1.3.46 development tree.
+ * On each read / write request, we now ask the drive
+ * if we can transfer a constant number of bytes
+ * (a parameter of the drive) only to its buffers,
+ * without causing actual media access. If we can't,
+ * we just wait until we can by polling the DSC bit.
+ * This ensures that while we are not transferring
+ * more bytes than the constant referred to above, the
+ * interrupt latency will not become too high and
+ * we won't cause an interrupt timeout, as happened
+ * occasionally in the previous version.
+ * While polling for DSC, the current request is
+ * postponed and ide.c is free to handle requests from
+ * the other device. This is handled transparently to
+ * ide.c. The hwgroup locking method which was used
+ * in the previous version was removed.
+ * Use of new general features which are provided by
+ * ide.c for use with atapi devices.
+ * (Programming done by Mark Lord)
+ * Few potential bug fixes (Again, suggested by Mark)
+ * Single character device data transfers are now
+ * not limited in size, as they were before.
+ * We are asking the tape about its recommended
+ * transfer unit and send a larger data transfer
+ * as several transfers of the above size.
+ * For best results, use an integral number of this
+ * basic unit (which is shown during driver
+ * initialization). I will soon add an ioctl to get
+ * this important parameter.
+ * Our data transfer buffer is allocated on startup,
+ * rather than before each data transfer. This should
+ * ensure that we will indeed have a data buffer.
+ * Ver 1.1 Dec 14 95 Fixed random problems which occurred when the tape
+ * shared an interface with another device.
+ * (poll_for_dsc was a complete mess).
+ * Removed some old (non-active) code which had
+ * to do with supporting buffer cache originated
+ * requests.
+ * The block device interface can now be opened, so
+ * that general ide driver features like the unmask
+ * interrupts flag can be selected with an ioctl.
+ * This is the only use of the block device interface.
+ * New fast pipelined operation mode (currently only on
+ * writes). When using the pipelined mode, the
+ * throughput can potentially reach the maximum
+ * tape supported throughput, regardless of the
+ * user backup program. On my tape drive, it sometimes
+ * boosted performance by a factor of 2. Pipelined
+ * mode is enabled by default, but since it has a few
+ * downfalls as well, you may want to disable it.
+ * A short explanation of the pipelined operation mode
+ * is available below.
+ * Ver 1.2 Jan 1 96 Eliminated pipelined mode race condition.
+ * Added pipeline read mode. As a result, restores
+ * are now as fast as backups.
+ * Optimized shared interface behavior. The new behavior
+ * typically results in better IDE bus efficiency and
+ * higher tape throughput.
+ * Pre-calculation of the expected read/write request
+ * service time, based on the tape's parameters. In
+ * the pipelined operation mode, this allows us to
+ * adjust our polling frequency to a much lower value,
+ * and thus to dramatically reduce our load on Linux,
+ * without any decrease in performance.
+ * Implemented additional mtio.h operations.
+ * The recommended user block size is returned by
+ * the MTIOCGET ioctl.
+ * Additional minor changes.
+ * Ver 1.3 Feb 9 96 Fixed pipelined read mode bug which prevented the
+ * use of some block sizes during a restore procedure.
+ * The character device interface will now present a
+ * continuous view of the media - any mix of block sizes
+ * during a backup/restore procedure is supported. The
+ * driver will buffer the requests internally and
+ * convert them to the tape's recommended transfer
+ * unit, making performance almost independent of the
+ * chosen user block size.
+ * Some improvements in error recovery.
+ * By cooperating with ide-dma.c, bus mastering DMA can
+ * now sometimes be used with IDE tape drives as well.
+ * Bus mastering DMA has the potential to dramatically
+ * reduce the CPU's overhead when accessing the device,
+ * and can be enabled by using hdparm -d1 on the tape's
+ * block device interface. For more info, read the
+ * comments in ide-dma.c.
+ * Ver 1.4 Mar 13 96 Fixed serialize support.
+ * Ver 1.5 Apr 12 96 Fixed shared interface operation, broken in 1.3.85.
+ * Fixed pipelined read mode inefficiency.
+ * Fixed nasty null dereferencing bug.
+ * Ver 1.6 Aug 16 96 Fixed FPU usage in the driver.
+ * Fixed end of media bug.
+ * Ver 1.7 Sep 10 96 Minor changes for the CONNER CTT8000-A model.
+ * Ver 1.8 Sep 26 96 Attempt to find a better balance between good
+ * interactive response and high system throughput.
+ * Ver 1.9 Nov 5 96 Automatically cross encountered filemarks rather
+ * than requiring an explicit FSF command.
+ * Abort pending requests at end of media.
+ * MTTELL was sometimes returning incorrect results.
+ * Return the real block size in the MTIOCGET ioctl.
+ * Some error recovery bug fixes.
+ * Ver 1.10 Nov 5 96 Major reorganization.
+ * Reduced CPU overhead a bit by eliminating internal
+ * bounce buffers.
+ * Added module support.
+ * Added multiple tape drives support.
+ * Added partition support.
+ * Rewrote DSC handling.
+ * Some portability fixes.
+ * Removed ide-tape.h.
+ * Additional minor changes.
+ * Ver 1.11 Dec 2 96 Bug fix in previous DSC timeout handling.
+ * Use ide_stall_queue() for DSC overlap.
+ * Use the maximum speed rather than the current speed
+ * to compute the request service time.
+ * Ver 1.12 Dec 7 97 Fix random memory overwriting and/or last block data
+ * corruption, which could occur if the total number
+ * of bytes written to the tape was not an integral
+ * number of tape blocks.
+ * Add support for INTERRUPT DRQ devices.
+ * Ver 1.13 Jan 2 98 Add "speed == 0" work-around for HP COLORADO 5GB
+ * Ver 1.14 Dec 30 98 Partial fixes for the Sony/AIWA tape drives.
+ * Replace cli()/sti() with hwgroup spinlocks.
+ * Ver 1.15 Mar 25 99 Fix SMP race condition by replacing hwgroup
+ * spinlock with private per-tape spinlock.
+ * Ver 1.16 Sep 1 99 Add OnStream tape support.
+ * Abort read pipeline on EOD.
+ * Wait for the tape to become ready in case it returns
+ * "in the process of becoming ready" on open().
+ * Fix zero padding of the last written block in
+ * case the tape block size is larger than PAGE_SIZE.
+ * Decrease the default disconnection time to tn.
+ * Ver 1.16e Oct 3 99 Minor fixes.
+ * Ver 1.16e1 Oct 13 99 Patches by Arnold Niessen,
+ * niessen@iae.nl / arnold.niessen@philips.com
+ * GO-1) Undefined code in idetape_read_position
+ * according to Gadi's email
+ * AJN-1) Minor fix asc == 11 should be asc == 0x11
+ * in idetape_issue_packet_command (did effect
+ * debugging output only)
+ * AJN-2) Added more debugging output, and
+ * added ide-tape: where missing. I would also
+ * like to add tape->name where possible
+ * AJN-3) Added different debug_level's
+ * via /proc/ide/hdc/settings
+ * "debug_level" determines amount of debugging output;
+ * can be changed using /proc/ide/hdx/settings
+ * 0 : almost no debugging output
+ * 1 : 0+output errors only
+ * 2 : 1+output all sensekey/asc
+ * 3 : 2+follow all chrdev related procedures
+ * 4 : 3+follow all procedures
+ * 5 : 4+include pc_stack rq_stack info
+ * 6 : 5+USE_COUNT updates
+ * AJN-4) Fixed timeout for retension in idetape_queue_pc_tail
+ * from 5 to 10 minutes
+ * AJN-5) Changed maximum number of blocks to skip when
+ * reading tapes with multiple consecutive write
+ * errors from 100 to 1000 in idetape_get_logical_blk
+ * Proposed changes to code:
+ * 1) output "logical_blk_num" via /proc
+ * 2) output "current_operation" via /proc
+ * 3) Either solve or document the fact that `mt rewind' is
+ * required after reading from /dev/nhtx to be
+ * able to rmmod the idetape module;
+ * Also, sometimes an application finishes but the
+ * device remains `busy' for some time. Same cause ?
+ * Proposed changes to release-notes:
+ * 4) write a simple `quickstart' section in the
+ * release notes; I volunteer if you don't want to
+ * 5) include a pointer to video4linux in the doc
+ * to stimulate video applications
+ * 6) release notes lines 331 and 362: explain what happens
+ * if the application data rate is higher than 1100 KB/s;
+ * similar approach to lower-than-500 kB/s ?
+ * 7) 6.6 Comparison; wouldn't it be better to allow different
+ * strategies for read and write ?
+ * Wouldn't it be better to control the tape buffer
+ * contents instead of the bandwidth ?
+ * 8) line 536: replace will by would (if I understand
+ * this section correctly, a hypothetical and unwanted situation
+ * is being described)
+ * Ver 1.16f Dec 15 99 Change place of the secondary OnStream header frames.
+ * Ver 1.17 Nov 2000 / Jan 2001 Marcel Mol, marcel@mesa.nl
+ * - Add idetape_onstream_mode_sense_tape_parameter_page
+ * function to get tape capacity in frames: tape->capacity.
+ * - Add support for DI-50 drives( or any DI- drive).
+ * - 'workaround' for read error/blank block around block 3000.
+ * - Implement Early warning for end of media for Onstream.
+ * - Cosmetic code changes for readability.
+ * - Idetape_position_tape should not use SKIP bit during
+ * Onstream read recovery.
+ * - Add capacity, logical_blk_num and first/last_frame_position
+ * to /proc/ide/hd?/settings.
+ * - Module use count was gone in the Linux 2.4 driver.
+ * Ver 1.17a Apr 2001 Willem Riede osst@riede.org
+ * - Get drive's actual block size from mode sense block descriptor
+ * - Limit size of pipeline
+ * Ver 1.17b Oct 2002 Alan Stern <stern@rowland.harvard.edu>
+ * Changed IDETAPE_MIN_PIPELINE_STAGES to 1 and actually used
+ * it in the code!
+ * Actually removed aborted stages in idetape_abort_pipeline
+ * instead of just changing the command code.
+ * Made the transfer byte count for Request Sense equal to the
+ * actual length of the data transfer.
+ * Changed handling of partial data transfers: they do not
+ * cause DMA errors.
+ * Moved initiation of DMA transfers to the correct place.
+ * Removed reference to unallocated memory.
+ * Made __idetape_discard_read_pipeline return the number of
+ * sectors skipped, not the number of stages.
+ * Replaced errant kfree() calls with __idetape_kfree_stage().
+ * Fixed off-by-one error in testing the pipeline length.
+ * Fixed handling of filemarks in the read pipeline.
+ * Small code optimization for MTBSF and MTBSFM ioctls.
+ * Don't try to unlock the door during device close if is
+ * already unlocked!
+ * Cosmetic fixes to miscellaneous debugging output messages.
+ * Set the minimum /proc/ide/hd?/settings values for "pipeline",
+ * "pipeline_min", and "pipeline_max" to 1.
+ */
--- /dev/null
+/*
+ * IDE ATAPI streaming tape driver.
+ *
+ * This driver is a part of the Linux ide driver.
+ *
+ * The driver, in co-operation with ide.c, basically traverses the
+ * request-list for the block device interface. The character device
+ * interface, on the other hand, creates new requests, adds them
+ * to the request-list of the block device, and waits for their completion.
+ *
+ * Pipelined operation mode is now supported on both reads and writes.
+ *
+ * The block device major and minor numbers are determined from the
+ * tape's relative position in the ide interfaces, as explained in ide.c.
+ *
+ * The character device interface consists of the following devices:
+ *
+ * ht0 major 37, minor 0 first IDE tape, rewind on close.
+ * ht1 major 37, minor 1 second IDE tape, rewind on close.
+ * ...
+ * nht0 major 37, minor 128 first IDE tape, no rewind on close.
+ * nht1 major 37, minor 129 second IDE tape, no rewind on close.
+ * ...
+ *
+ * The general magnetic tape commands compatible interface, as defined by
+ * include/linux/mtio.h, is accessible through the character device.
+ *
+ * General ide driver configuration options, such as the interrupt-unmask
+ * flag, can be configured by issuing an ioctl to the block device interface,
+ * as any other ide device.
+ *
+ * Our own ide-tape ioctl's can be issued to either the block device or
+ * the character device interface.
+ *
+ * Maximal throughput with minimal bus load will usually be achieved in the
+ * following scenario:
+ *
+ * 1. ide-tape is operating in the pipelined operation mode.
+ * 2. No buffering is performed by the user backup program.
+ *
+ * Testing was done with a 2 GB CONNER CTMA 4000 IDE ATAPI Streaming Tape Drive.
+ *
+ * Here are some words from the first releases of hd.c, which are quoted
+ * in ide.c and apply here as well:
+ *
+ * | Special care is recommended. Have Fun!
+ *
+ *
+ * An overview of the pipelined operation mode.
+ *
+ * In the pipelined write mode, we will usually just add requests to our
+ * pipeline and return immediately, before we even start to service them. The
+ * user program will then have enough time to prepare the next request while
+ * we are still busy servicing previous requests. In the pipelined read mode,
+ * the situation is similar - we add read-ahead requests into the pipeline,
+ * before the user even requested them.
+ *
+ * The pipeline can be viewed as a "safety net" which will be activated when
+ * the system load is high and prevents the user backup program from keeping up
+ * with the current tape speed. At this point, the pipeline will get
+ * shorter and shorter but the tape will still be streaming at the same speed.
+ * Assuming we have enough pipeline stages, the system load will hopefully
+ * decrease before the pipeline is completely empty, and the backup program
+ * will be able to "catch up" and refill the pipeline again.
+ *
+ * When using the pipelined mode, it would be best to disable any type of
+ * buffering done by the user program, as ide-tape already provides all the
+ * benefits in the kernel, where it can be done in a more efficient way.
+ * As we will usually not block the user program on a request, the most
+ * efficient user code will then be a simple read-write-read-... cycle.
+ * Any additional logic will usually just slow down the backup process.
+ *
+ * Using the pipelined mode, I get a constant over 400 KBps throughput,
+ * which seems to be the maximum throughput supported by my tape.
+ *
+ * However, there are some downfalls:
+ *
+ * 1. We use memory (for data buffers) in proportional to the number
+ * of pipeline stages (each stage is about 26 KB with my tape).
+ * 2. In the pipelined write mode, we cheat and postpone error codes
+ * to the user task. In read mode, the actual tape position
+ * will be a bit further than the last requested block.
+ *
+ * Concerning (1):
+ *
+ * 1. We allocate stages dynamically only when we need them. When
+ * we don't need them, we don't consume additional memory. In
+ * case we can't allocate stages, we just manage without them
+ * (at the expense of decreased throughput) so when Linux is
+ * tight in memory, we will not pose additional difficulties.
+ *
+ * 2. The maximum number of stages (which is, in fact, the maximum
+ * amount of memory) which we allocate is limited by the compile
+ * time parameter IDETAPE_MAX_PIPELINE_STAGES.
+ *
+ * 3. The maximum number of stages is a controlled parameter - We
+ * don't start from the user defined maximum number of stages
+ * but from the lower IDETAPE_MIN_PIPELINE_STAGES (again, we
+ * will not even allocate this amount of stages if the user
+ * program can't handle the speed). We then implement a feedback
+ * loop which checks if the pipeline is empty, and if it is, we
+ * increase the maximum number of stages as necessary until we
+ * reach the optimum value which just manages to keep the tape
+ * busy with minimum allocated memory or until we reach
+ * IDETAPE_MAX_PIPELINE_STAGES.
+ *
+ * Concerning (2):
+ *
+ * In pipelined write mode, ide-tape can not return accurate error codes
+ * to the user program since we usually just add the request to the
+ * pipeline without waiting for it to be serviced. In case an error
+ * occurs, I will report it on the next user request.
+ *
+ * In the pipelined read mode, subsequent read requests or forward
+ * filemark spacing will perform correctly, as we preserve all blocks
+ * and filemarks which we encountered during our excess read-ahead.
+ *
+ * For accurate tape positioning and error reporting, disabling
+ * pipelined mode might be the best option.
+ *
+ * You can enable/disable/tune the pipelined operation mode by adjusting
+ * the compile time parameters below.
+ *
+ *
+ * Possible improvements.
+ *
+ * 1. Support for the ATAPI overlap protocol.
+ *
+ * In order to maximize bus throughput, we currently use the DSC
+ * overlap method which enables ide.c to service requests from the
+ * other device while the tape is busy executing a command. The
+ * DSC overlap method involves polling the tape's status register
+ * for the DSC bit, and servicing the other device while the tape
+ * isn't ready.
+ *
+ * In the current QIC development standard (December 1995),
+ * it is recommended that new tape drives will *in addition*
+ * implement the ATAPI overlap protocol, which is used for the
+ * same purpose - efficient use of the IDE bus, but is interrupt
+ * driven and thus has much less CPU overhead.
+ *
+ * ATAPI overlap is likely to be supported in most new ATAPI
+ * devices, including new ATAPI cdroms, and thus provides us
+ * a method by which we can achieve higher throughput when
+ * sharing a (fast) ATA-2 disk with any (slow) new ATAPI device.
+ */
disk with the desired initrd content, cd to that directory, and run (as an
example):
-find . | cpio --quiet -c -o | gzip -9 -n > /boot/imagefile.img
+find . | cpio --quiet -H newc -o | gzip -9 -n > /boot/imagefile.img
Examining the contents of an existing image file is just as simple:
--- /dev/null
+NOTE:
+This is Japanese translated version of "Documentation/stable_kernel_rules.txt".
+This one is maintained by Tsugikazu Shibata <tshibata@ab.jp.nec.com>
+and JF Project team <www.linux.or.jp/JF>.
+If you find difference with original file or problem in translation,
+please contact maintainer of this file or JF project.
+
+Please also note that purpose of this file is easier to read for non
+English natives and do no intended to fork. So, if you have any
+comment or update of this file, please try to update Original(English)
+file at first.
+
+==================================
+ã\81\93ã\82\8cã\81¯ã\80\81
+linux-2.6.24/Documentation/stable_kernel_rules.txt
+ã\81®å\92\8c訳ã\81§ã\81\99ã\80\82
+
+翻訳å\9b£ä½\93ï¼\9a JF ã\83\97ã\83ã\82¸ã\82§ã\82¯ã\83\88 < http://www.linux.or.jp/JF/ >
+翻訳æ\97¥ï¼\9a 2007/12/30
+翻訳è\80\85ï¼\9a Tsugikazu Shibata <tshibata at ab dot jp dot nec dot com>
+æ ¡æ£è\80\85ï¼\9a æ¦äº\95伸å\85\89ã\81\95ã\82\93ã\80\81<takei at webmasters dot gr dot jp>
+ ã\81\8bã\81ã\81\93ã\81\95ã\82\93 (Seiji Kaneko) <skaneko at a2 dot mbn dot or dot jp>
+ å°\8fæ\9e\97 é\9b\85å\85¸ã\81\95ã\82\93 (Masanori Kobayasi) <zap03216 at nifty dot ne dot jp>
+ é\87\8eå\8f£ã\81\95ã\82\93 (Kenji Noguchi) <tokyo246 at gmail dot com>
+ ç¥\9e宮信太é\83\8eã\81\95ã\82\93 <jin at libjingu dot jp>
+==================================
+
+ã\81\9aã\81£ã\81¨ç\9f¥ã\82\8aã\81\9fã\81\8bã\81£ã\81\9f Linux 2.6 -stable ã\83ªã\83ªã\83¼ã\82¹ã\81®å\85¨ã\81¦
+
+"-stable" ã\83\84ã\83ªã\83¼ã\81«ã\81©ã\81®ã\82\88ã\81\86ã\81ªç¨®é¡\9eã\81®ã\83\91ã\83\83ã\83\81ã\81\8cå\8f\97ã\81\91å\85¥ã\82\8cã\82\89ã\82\8cã\82\8bã\81\8bã\80\81ã\81©ã\81®ã\82\88ã\81\86ã\81ª
+ã\82\82ã\81®ã\81\8cå\8f\97ã\81\91å\85¥ã\82\8cã\82\89ã\82\8cã\81ªã\81\84ã\81\8bã\80\81ã\81«ã\81¤ã\81\84ã\81¦ã\81®è¦\8få\89\87-
+
+ - æ\98\8eã\82\89ã\81\8bã\81«æ£ã\81\97ã\81\8fã\80\81ã\83\86ã\82¹ã\83\88ã\81\95ã\82\8cã\81¦ã\81\84ã\82\8bã\82\82ã\81®ã\81§ã\81ªã\81\91ã\82\8cã\81°ã\81ªã\82\89ã\81ªã\81\84ã\80\82
+ - æ\96\87è\84\88(å¤\89æ\9b´è¡\8cã\81®å\89\8då¾\8c)ã\82\92å\90«ã\82\81ã\81¦ 100 è¡\8cã\82\88ã\82\8a大ã\81\8dã\81\8fã\81¦ã\81¯ã\81\84ã\81\91ã\81ªã\81\84ã\80\82
+ - ã\81\9fã\81 ä¸\80å\80\8bã\81®ã\81\93ã\81¨ã\81 ã\81\91ã\82\92ä¿®æ£ã\81\97ã\81¦ã\81\84ã\82\8bã\81¹ã\81\8dã\80\82
+ - ç\9a\86ã\82\92æ\82©ã\81¾ã\81\9bã\81¦ã\81\84ã\82\8bæ\9c¬ç\89©ã\81®ã\83\90ã\82°ã\82\92ä¿®æ£ã\81\97ã\81ªã\81\91ã\82\8cã\81°ã\81ªã\82\89ã\81ªã\81\84ã\80\82("ã\81\93ã\82\8cã\81¯ã\83\90ã\82°ã\81§
+ ã\81\82ã\82\8bã\81\8bã\82\82ã\81\97ã\82\8cã\81ªã\81\84ã\81\8c..." ã\81®ã\82\88ã\81\86ã\81ªã\82\82ã\81®ã\81§ã\81¯ã\81ªã\81\84)
+ - ã\83\93ã\83«ã\83\89ã\82¨ã\83©ã\83¼(CONFIG_BROKENã\81«ã\81ªã\81£ã\81¦ã\81\84ã\82\8bã\82\82ã\81®ã\82\92é\99¤ã\81\8f), oops, ã\83\8fã\83³ã\82°ã\80\81ã\83\87ã\83¼
+ ã\82¿ç ´å£\8aã\80\81ç\8f¾å®\9fã\81®ã\82»ã\82ã\83¥ã\83ªã\83\86ã\82£å\95\8fé¡\8cã\80\81ã\81\9dã\81®ä»\96 "ã\81\82ã\81\82ã\80\81ã\81\93ã\82\8cã\81¯ã\83\80ã\83¡ã\81 ã\81"ã\81¨ã\81\84ã\81\86
+ ã\82\88ã\81\86ã\81ªã\82\82ã\81®ã\82\92ä¿®æ£ã\81\97ã\81ªã\81\91ã\82\8cã\81°ã\81ªã\82\89ã\81ªã\81\84ã\80\82ç\9fã\81\8fè¨\80ã\81\88ã\81°ã\80\81é\87\8d大ã\81ªå\95\8fé¡\8cã\80\82
+ - ã\81©ã\81®ã\82\88ã\81\86ã\81«ç«¶å\90\88ç\8a¶æ\85\8bã\81\8cç\99ºç\94\9fã\81\99ã\82\8bã\81\8bã\81®èª¬æ\98\8eã\82\82ä¸\80ç·\92ã\81«æ\9b¸ã\81\8bã\82\8cã\81¦ã\81\84ã\81ªã\81\84é\99\90ã\82\8aã\80\81
+ "ç\90\86è«\96ç\9a\84ã\81«ã\81¯ç«¶å\90\88ç\8a¶æ\85\8bã\81«ã\81ªã\82\8b"ã\82\88ã\81\86ã\81ªã\82\82ã\81®ã\81¯ä¸\8då\8f¯ã\80\82
+ - ã\81\84ã\81\8bã\81ªã\82\8bäº\9bç´°ã\81ªä¿®æ£ã\82\82å\90«ã\82\81ã\82\8bã\81\93ã\81¨ã\81¯ã\81§ã\81\8dã\81ªã\81\84ã\80\82(ã\82¹ã\83\9aã\83«ã\81®ä¿®æ£ã\80\81空ç\99½ã\81®ã\82¯ã\83ªã\83¼
+ ã\83³ã\82¢ã\83\83ã\83\97ã\81ªã\81©)
+ - 対å¿\9cã\81\99ã\82\8bã\82µã\83\96ã\82·ã\82¹ã\83\86ã\83 ã\83¡ã\83³ã\83\86ã\83\8aã\81\8cå\8f\97ã\81\91å\85¥ã\82\8cã\81\9fã\82\82ã\81®ã\81§ã\81ªã\81\91ã\82\8cã\81°ã\81ªã\82\89ã\81ªã\81\84ã\80\82
+ - Documentation/SubmittingPatches ã\81®è¦\8få\89\87ã\81«å¾\93ã\81£ã\81\9fã\82\82ã\81®ã\81§ã\81ªã\81\91ã\82\8cã\81°ã\81ªã\82\89ã\81ªã\81\84ã\80\82
+
+-stable ã\83\84ã\83ªã\83¼ã\81«ã\83\91ã\83\83ã\83\81ã\82\92é\80\81ä»\98ã\81\99ã\82\8bæ\89\8bç¶\9aã\81\8d-
+
+ - ä¸\8aè¨\98ã\81®è¦\8få\89\87ã\81«å¾\93ã\81£ã\81¦ã\81\84ã\82\8bã\81\8bã\82\92確èª\8dã\81\97ã\81\9få¾\8cã\81«ã\80\81stable@kernel.org ã\81«ã\83\91ã\83\83ã\83\81
+ ã\82\92é\80\81ã\82\8bã\80\82
+ - é\80\81ä¿¡è\80\85ã\81¯ã\83\91ã\83\83ã\83\81ã\81\8cã\82ã\83¥ã\83¼ã\81«å\8f\97ã\81\91ä»\98ã\81\91ã\82\89ã\82\8cã\81\9fé\9a\9bã\81«ã\81¯ ACK ã\82\92ã\80\81å\8d´ä¸\8bã\81\95ã\82\8cã\81\9få ´å\90\88
+ ã\81«ã\81¯ NAK ã\82\92å\8f\97ã\81\91å\8f\96ã\82\8bã\80\82ã\81\93ã\81®å\8f\8då¿\9cã\81¯é\96\8bç\99ºè\80\85ã\81\9fã\81¡ã\81®ã\82¹ã\82±ã\82¸ã\83¥ã\83¼ã\83«ã\81«ã\82\88ã\81£ã\81¦ã\80\81æ\95°
+ æ\97¥ã\81\8bã\81\8bã\82\8bå ´å\90\88ã\81\8cã\81\82ã\82\8bã\80\82
+ - ã\82\82ã\81\97å\8f\97ã\81\91å\8f\96ã\82\89ã\82\8cã\81\9fã\82\89ã\80\81ã\83\91ã\83\83ã\83\81ã\81¯ä»\96ã\81®é\96\8bç\99ºè\80\85ã\81\9fã\81¡ã\81®ã\83¬ã\83\93ã\83¥ã\83¼ã\81®ã\81\9fã\82\81ã\81«
+ -stable ã\82ã\83¥ã\83¼ã\81«è¿½å\8a ã\81\95ã\82\8cã\82\8bã\80\82
+ - ã\82»ã\82ã\83¥ã\83ªã\83\86ã\82£ã\83\91ã\83\83ã\83\81ã\81¯ã\81\93ã\81®ã\82¨ã\82¤ã\83ªã\82¢ã\82¹ (stable@kernel.org) ã\81«é\80\81ã\82\89ã\82\8cã\82\8bã\81¹
+ ã\81\8dã\81§ã\81¯ã\81ªã\81\8fã\80\81代ã\82\8fã\82\8aã\81« security@kernel.org ã\81®ã\82¢ã\83\89ã\83¬ã\82¹ã\81«é\80\81ã\82\89ã\82\8cã\82\8bã\80\82
+
+ã\83¬ã\83\93ã\83¥ã\83¼ã\82µã\82¤ã\82¯ã\83«-
+
+ - -stable ã\83¡ã\83³ã\83\86ã\83\8aã\81\8cã\83¬ã\83\93ã\83¥ã\83¼ã\82µã\82¤ã\82¯ã\83«ã\82\92決ã\82\81ã\82\8bã\81¨ã\81\8dã\80\81ã\83\91ã\83\83ã\83\81ã\81¯ã\83¬ã\83\93ã\83¥ã\83¼å§\94
+ å\93¡ä¼\9aã\81¨ã\83\91ã\83\83ã\83\81ã\81\8cå½±é\9f¿ã\81\99ã\82\8bé \98å\9f\9fã\81®ã\83¡ã\83³ã\83\86ã\83\8a(æ\8f\90ä¾\9bè\80\85ã\81\8cã\81\9dã\81®é \98å\9f\9fã\81®ã\83¡ã\83³ã\83\86ã\83\8aã\81§ç\84¡
+ ã\81\84é\99\90ã\82\8a)ã\81«é\80\81ã\82\89ã\82\8cã\80\81linux-kernel ã\83¡ã\83¼ã\83ªã\83³ã\82°ã\83ªã\82¹ã\83\88ã\81«CCã\81\95ã\82\8cã\82\8bã\80\82
+ - ã\83¬ã\83\93ã\83¥ã\83¼å§\94å\93¡ä¼\9aã\81¯ 48æ\99\82é\96\93ã\81®é\96\93ã\81« ACK ã\81\8b NAK ã\82\92å\87ºã\81\99ã\80\82
+ - ã\82\82ã\81\97ã\83\91ã\83\83ã\83\81ã\81\8cå§\94å\93¡ä¼\9aã\81®ã\83¡ã\83³ã\83\90ã\81\8bã\82\89å\8d´ä¸\8bã\82\8cã\82\8bã\81\8bã\80\81ã\83¡ã\83³ã\83\86ã\83\8aé\81\94ã\82\84ã\83¡ã\83³ã\83\90ã\81\8cæ°\97ä»\98
+ ã\81\8bã\81ªã\81\8bã\81£ã\81\9få\95\8fé¡\8cã\81\8cæ\8c\81ã\81¡ã\81\82ã\81\8cã\82\8aã\80\81linux-kernel ã\83¡ã\83³ã\83\90ã\81\8cã\83\91ã\83\83ã\83\81ã\81«ç\95°è°ã\82\92å\94±ã\81\88
+ ã\81\9få ´å\90\88ã\81«ã\81¯ã\80\81ã\83\91ã\83\83ã\83\81ã\81¯ã\82ã\83¥ã\83¼ã\81\8bã\82\89å\89\8aé\99¤ã\81\95ã\82\8cã\82\8bã\80\82
+ - ã\83¬ã\83\93ã\83¥ã\83¼ã\82µã\82¤ã\82¯ã\83«ã\81®æ\9c\80å¾\8cã\81«ã\80\81ACK ã\82\92å\8f\97ã\81\91ã\81\9fã\83\91ã\83\83ã\83\81ã\81¯æ\9c\80æ\96°ã\81® -stable ã\83ªã\83ªã\83¼
+ ã\82¹ã\81«è¿½å\8a ã\81\95ã\82\8cã\80\81ã\81\9dã\81®å¾\8cã\81«æ\96°ã\81\97ã\81\84 -stable ã\83ªã\83ªã\83¼ã\82¹ã\81\8cè¡\8cã\82\8fã\82\8cã\82\8bã\80\82
+ - ã\82»ã\82ã\83¥ã\83ªã\83\86ã\82£ã\83\91ã\83\83ã\83\81ã\81¯ã\80\81é\80\9a常ã\81®ã\83¬ã\83\93ã\83¥ã\83¼ã\82µã\82¤ã\82¯ã\83«ã\82\92é\80\9aã\82\89ã\81\9aã\80\81ã\82»ã\82ã\83¥ã\83ªã\83\86ã\82£
+ ã\82«ã\83¼ã\83\8dã\83«ã\83\81ã\83¼ã\83 ã\81\8bã\82\89ç\9b´æ\8e¥ -stable ã\83\84ã\83ªã\83¼ã\81«å\8f\97ã\81\91ä»\98ã\81\91ã\82\89ã\82\8cã\82\8bã\80\82
+ ã\81\93ã\81®æ\89\8bç¶\9aã\81\8dã\81®è©³ç´°ã\81«ã\81¤ã\81\84ã\81¦ã\81¯ kernel security ã\83\81ã\83¼ã\83 ã\81«å\95\8fã\81\84å\90\88ã\82\8fã\81\9bã\82\8bã\81\93ã\81¨ã\80\82
+
+ã\83¬ã\83\93ã\83¥ã\83¼å§\94å\93¡ä¼\9a-
+
+ - ã\81\93ã\81®å§\94å\93¡ä¼\9aã\81¯ã\80\81ã\81\93ã\81®ã\82¿ã\82¹ã\82¯ã\81«ã\81¤ã\81\84ã\81¦æ´»å\8b\95ã\81\99ã\82\8bå¤\9aã\81\8fã\81®ã\83\9cã\83©ã\83³ã\83\86ã\82£ã\82¢ã\81¨ã\80\81å°\91æ\95°ã\81®
+ é\9d\9eã\83\9cã\83©ã\83³ã\83\86ã\82£ã\82¢ã\81®ã\82«ã\83¼ã\83\8dã\83«é\96\8bç\99ºè\80\85é\81\94ã\81§æ§\8bæ\88\90ã\81\95ã\82\8cã\81¦ã\81\84ã\82\8bã\80\82
+
1 will print _a lot_ more information - normally
only useful to kernel developers.
- decnet= [HW,NET]
+ decnet.addr= [HW,NET]
Format: <area>[,<node>]
See also Documentation/networking/decnet.txt.
ramdisk_size= [RAM] Sizes of RAM disks in kilobytes
See Documentation/ramdisk.txt.
- rcu.blimit= [KNL,BOOT] Set maximum number of finished
- RCU callbacks to process in one batch.
+ rcupdate.blimit= [KNL,BOOT]
+ Set maximum number of finished RCU callbacks to process
+ in one batch.
- rcu.qhimark= [KNL,BOOT] Set threshold of queued
+ rcupdate.qhimark= [KNL,BOOT]
+ Set threshold of queued
RCU callbacks over which batch limiting is disabled.
- rcu.qlowmark= [KNL,BOOT] Set threshold of queued
- RCU callbacks below which batch limiting is re-enabled.
+ rcupdate.qlowmark= [KNL,BOOT]
+ Set threshold of queued RCU callbacks below which
+ batch limiting is re-enabled.
rdinit= [KNL]
Format: <full_path>
st= [HW,SCSI] SCSI tape parameters (buffers, etc.)
See Documentation/scsi/st.txt.
- st0x= [HW,SCSI]
- See header of drivers/scsi/seagate.c.
-
sti= [PARISC,HW]
Format: <num>
Set the STI (builtin display/keyboard on the HP-PARISC
tipar.delay= [HW,PPT]
Set inter-bit delay in microseconds (default 10).
- tmc8xx= [HW,SCSI]
- See header of drivers/scsi/seagate.c.
-
tmscsim= [HW,SCSI]
See comment before function dc390_setup() in
drivers/scsi/tmscsim.c.
#include <zlib.h>
#include <assert.h>
#include <sched.h>
+#include <limits.h>
+#include <stddef.h>
#include "linux/lguest_launcher.h"
#include "linux/virtio_config.h"
#include "linux/virtio_net.h"
/* The descriptor page for the devices. */
u8 *descpage;
- /* The tail of the last descriptor. */
- unsigned int desc_used;
-
/* A single linked list of devices. */
struct device *dev;
- /* ... And an end pointer so we can easily append new devices */
- struct device **lastdev;
+ /* And a pointer to the last device for easy append and also for
+ * configuration appending. */
+ struct device *lastdev;
};
/* The list of Guest devices, based on command line arguments. */
#define cpu_to_le64(v64) (v64)
#define le16_to_cpu(v16) (v16)
#define le32_to_cpu(v32) (v32)
-#define le64_to_cpu(v32) (v64)
+#define le64_to_cpu(v64) (v64)
+
+/* The device virtqueue descriptors are followed by feature bitmasks. */
+static u8 *get_feature_bits(struct device *dev)
+{
+ return (u8 *)(dev->desc + 1)
+ + dev->desc->num_vq * sizeof(struct lguest_vqconfig);
+}
/*L:100 The Launcher code itself takes us out into userspace, that scary place
* where pointers run wild and free! Unfortunately, like most userspace
write(waker_fd, &vq->dev->fd, sizeof(vq->dev->fd));
}
+/* Resetting a device is fairly easy. */
+static void reset_device(struct device *dev)
+{
+ struct virtqueue *vq;
+
+ verbose("Resetting device %s\n", dev->name);
+ /* Clear the status. */
+ dev->desc->status = 0;
+
+ /* Clear any features they've acked. */
+ memset(get_feature_bits(dev) + dev->desc->feature_len, 0,
+ dev->desc->feature_len);
+
+ /* Zero out the virtqueues. */
+ for (vq = dev->vq; vq; vq = vq->next) {
+ memset(vq->vring.desc, 0,
+ vring_size(vq->config.num, getpagesize()));
+ vq->last_avail_idx = 0;
+ }
+}
+
/* This is the generic routine we call when the Guest uses LHCALL_NOTIFY. */
static void handle_output(int fd, unsigned long addr)
{
struct device *i;
struct virtqueue *vq;
- /* Check each virtqueue. */
+ /* Check each device and virtqueue. */
for (i = devices.dev; i; i = i->next) {
+ /* Notifications to device descriptors reset the device. */
+ if (from_guest_phys(addr) == i->desc) {
+ reset_device(i);
+ return;
+ }
+
+ /* Notifications to virtqueues mean output has occurred. */
for (vq = i->vq; vq; vq = vq->next) {
- if (vq->config.pfn == addr/getpagesize()
- && vq->handle_output) {
- verbose("Output to %s\n", vq->dev->name);
- vq->handle_output(fd, vq);
+ if (vq->config.pfn != addr/getpagesize())
+ continue;
+
+ /* Guest should acknowledge (and set features!) before
+ * using the device. */
+ if (i->desc->status == 0) {
+ warnx("%s gave early output", i->name);
return;
}
+
+ if (strcmp(vq->dev->name, "console") != 0)
+ verbose("Output to %s\n", vq->dev->name);
+ if (vq->handle_output)
+ vq->handle_output(fd, vq);
+ return;
}
}
*
* All devices need a descriptor so the Guest knows it exists, and a "struct
* device" so the Launcher can keep track of it. We have common helper
- * routines to allocate them.
- *
- * This routine allocates a new "struct lguest_device_desc" from descriptor
- * table just above the Guest's normal memory. It returns a pointer to that
- * descriptor. */
-static struct lguest_device_desc *new_dev_desc(u16 type)
-{
- struct lguest_device_desc *d;
+ * routines to allocate and manage them. */
- /* We only have one page for all the descriptors. */
- if (devices.desc_used + sizeof(*d) > getpagesize())
- errx(1, "Too many devices");
-
- /* We don't need to set config_len or status: page is 0 already. */
- d = (void *)devices.descpage + devices.desc_used;
- d->type = type;
- devices.desc_used += sizeof(*d);
-
- return d;
+/* The layout of the device page is a "struct lguest_device_desc" followed by a
+ * number of virtqueue descriptors, then two sets of feature bits, then an
+ * array of configuration bytes. This routine returns the configuration
+ * pointer. */
+static u8 *device_config(const struct device *dev)
+{
+ return (void *)(dev->desc + 1)
+ + dev->desc->num_vq * sizeof(struct lguest_vqconfig)
+ + dev->desc->feature_len * 2;
}
-/* Each device descriptor is followed by some configuration information.
- * Each configuration field looks like: u8 type, u8 len, [... len bytes...].
- *
- * This routine adds a new field to an existing device's descriptor. It only
- * works for the last device, but that's OK because that's how we use it. */
-static void add_desc_field(struct device *dev, u8 type, u8 len, const void *c)
+/* This routine allocates a new "struct lguest_device_desc" from descriptor
+ * table page just above the Guest's normal memory. It returns a pointer to
+ * that descriptor. */
+static struct lguest_device_desc *new_dev_desc(u16 type)
{
- /* This is the last descriptor, right? */
- assert(devices.descpage + devices.desc_used
- == (u8 *)(dev->desc + 1) + dev->desc->config_len);
+ struct lguest_device_desc d = { .type = type };
+ void *p;
- /* We only have one page of device descriptions. */
- if (devices.desc_used + 2 + len > getpagesize())
- errx(1, "Too many devices");
+ /* Figure out where the next device config is, based on the last one. */
+ if (devices.lastdev)
+ p = device_config(devices.lastdev)
+ + devices.lastdev->desc->config_len;
+ else
+ p = devices.descpage;
- /* Copy in the new config header: type then length. */
- devices.descpage[devices.desc_used++] = type;
- devices.descpage[devices.desc_used++] = len;
- memcpy(devices.descpage + devices.desc_used, c, len);
- devices.desc_used += len;
+ /* We only have one page for all the descriptors. */
+ if (p + sizeof(d) > (void *)devices.descpage + getpagesize())
+ errx(1, "Too many devices");
- /* Update the device descriptor length: two byte head then data. */
- dev->desc->config_len += 2 + len;
+ /* p might not be aligned, so we memcpy in. */
+ return memcpy(p, &d, sizeof(d));
}
-/* This routine adds a virtqueue to a device. We specify how many descriptors
- * the virtqueue is to have. */
+/* Each device descriptor is followed by the description of its virtqueues. We
+ * specify how many descriptors the virtqueue is to have. */
static void add_virtqueue(struct device *dev, unsigned int num_descs,
void (*handle_output)(int fd, struct virtqueue *me))
{
/* Initialize the vring. */
vring_init(&vq->vring, num_descs, p, getpagesize());
- /* Add the configuration information to this device's descriptor. */
- add_desc_field(dev, VIRTIO_CONFIG_F_VIRTQUEUE,
- sizeof(vq->config), &vq->config);
+ /* Append virtqueue to this device's descriptor. We use
+ * device_config() to get the end of the device's current virtqueues;
+ * we check that we haven't added any config or feature information
+ * yet, otherwise we'd be overwriting them. */
+ assert(dev->desc->config_len == 0 && dev->desc->feature_len == 0);
+ memcpy(device_config(dev), &vq->config, sizeof(vq->config));
+ dev->desc->num_vq++;
+
+ verbose("Virtqueue page %#lx\n", to_guest_phys(p));
/* Add to tail of list, so dev->vq is first vq, dev->vq->next is
* second. */
* virtqueue. */
vq->handle_output = handle_output;
- /* Set the "Don't Notify Me" flag if we don't have a handler */
+ /* As an optimization, set the advisory "Don't Notify Me" flag if we
+ * don't have a handler */
if (!handle_output)
vq->vring.used->flags = VRING_USED_F_NO_NOTIFY;
}
+/* The first half of the feature bitmask is for us to advertise features. The
+ * second half if for the Guest to accept features. */
+static void add_feature(struct device *dev, unsigned bit)
+{
+ u8 *features = get_feature_bits(dev);
+
+ /* We can't extend the feature bits once we've added config bytes */
+ if (dev->desc->feature_len <= bit / CHAR_BIT) {
+ assert(dev->desc->config_len == 0);
+ dev->desc->feature_len = (bit / CHAR_BIT) + 1;
+ }
+
+ features[bit / CHAR_BIT] |= (1 << (bit % CHAR_BIT));
+}
+
+/* This routine sets the configuration fields for an existing device's
+ * descriptor. It only works for the last device, but that's OK because that's
+ * how we use it. */
+static void set_config(struct device *dev, unsigned len, const void *conf)
+{
+ /* Check we haven't overflowed our single page. */
+ if (device_config(dev) + len > devices.descpage + getpagesize())
+ errx(1, "Too many devices");
+
+ /* Copy in the config information, and store the length. */
+ memcpy(device_config(dev), conf, len);
+ dev->desc->config_len = len;
+}
+
/* This routine does all the creation and setup of a new device, including
* calling new_dev_desc() to allocate the descriptor and device memory. */
static struct device *new_device(const char *name, u16 type, int fd,
{
struct device *dev = malloc(sizeof(*dev));
- /* Append to device list. Prepending to a single-linked list is
- * easier, but the user expects the devices to be arranged on the bus
- * in command-line order. The first network device on the command line
- * is eth0, the first block device /dev/vda, etc. */
- *devices.lastdev = dev;
- dev->next = NULL;
- devices.lastdev = &dev->next;
-
/* Now we populate the fields one at a time. */
dev->fd = fd;
/* If we have an input handler for this file descriptor, then we add it
dev->handle_input = handle_input;
dev->name = name;
dev->vq = NULL;
+
+ /* Append to device list. Prepending to a single-linked list is
+ * easier, but the user expects the devices to be arranged on the bus
+ * in command-line order. The first network device on the command line
+ * is eth0, the first block device /dev/vda, etc. */
+ if (devices.lastdev)
+ devices.lastdev->next = dev;
+ else
+ devices.dev = dev;
+ devices.lastdev = dev;
+
return dev;
}
int netfd, ipfd;
u32 ip;
const char *br_name = NULL;
- u8 hwaddr[6];
+ struct virtio_net_config conf;
/* We open the /dev/net/tun device and tell it we want a tap device. A
* tap device is like a tun device, only somehow different. To tell
ip = str2ip(arg);
/* Set up the tun device, and get the mac address for the interface. */
- configure_device(ipfd, ifr.ifr_name, ip, hwaddr);
+ configure_device(ipfd, ifr.ifr_name, ip, conf.mac);
/* Tell Guest what MAC address to use. */
- add_desc_field(dev, VIRTIO_CONFIG_NET_MAC_F, sizeof(hwaddr), hwaddr);
+ add_feature(dev, VIRTIO_NET_F_MAC);
+ set_config(dev, sizeof(conf), &conf);
- /* We don't seed the socket any more; setup is done. */
+ /* We don't need the socket any more; setup is done. */
close(ipfd);
verbose("device %u: tun net %u.%u.%u.%u\n",
struct device *dev;
struct vblk_info *vblk;
void *stack;
- u64 cap;
- unsigned int val;
+ struct virtio_blk_config conf;
/* This is the pipe the I/O thread will use to tell us I/O is done. */
pipe(p);
vblk->fd = open_or_die(filename, O_RDWR|O_LARGEFILE);
vblk->len = lseek64(vblk->fd, 0, SEEK_END);
+ /* We support barriers. */
+ add_feature(dev, VIRTIO_BLK_F_BARRIER);
+
/* Tell Guest how many sectors this device has. */
- cap = cpu_to_le64(vblk->len / 512);
- add_desc_field(dev, VIRTIO_CONFIG_BLK_F_CAPACITY, sizeof(cap), &cap);
+ conf.capacity = cpu_to_le64(vblk->len / 512);
/* Tell Guest not to put in too many descriptors at once: two are used
* for the in and out elements. */
- val = cpu_to_le32(VIRTQUEUE_NUM - 2);
- add_desc_field(dev, VIRTIO_CONFIG_BLK_F_SEG_MAX, sizeof(val), &val);
+ add_feature(dev, VIRTIO_BLK_F_SEG_MAX);
+ conf.seg_max = cpu_to_le32(VIRTQUEUE_NUM - 2);
+
+ set_config(dev, sizeof(conf), &conf);
/* The I/O thread writes to this end of the pipe when done. */
vblk->done_fd = p[1];
close(vblk->workpipe[0]);
verbose("device %u: virtblock %llu sectors\n",
- devices.device_num, cap);
+ devices.device_num, le64_to_cpu(conf.capacity));
}
/* That's the end of device setup. :*/
/* First we initialize the device list. Since console and network
* device receive input from a file descriptor, we keep an fdset
* (infds) and the maximum fd number (max_infd) with the head of the
- * list. We also keep a pointer to the last device, for easy appending
- * to the list. Finally, we keep the next interrupt number to hand out
- * (1: remember that 0 is used by the timer). */
+ * list. We also keep a pointer to the last device. Finally, we keep
+ * the next interrupt number to hand out (1: remember that 0 is used by
+ * the timer). */
FD_ZERO(&devices.infds);
devices.max_infd = -1;
- devices.lastdev = &devices.dev;
+ devices.lastdev = NULL;
devices.next_irq = 1;
cpu_id = 0;
The kernel command line takes options looking like the following:
- decnet=1,2
+ decnet.addr=1,2
the two numbers are the node address 1,2 = 1.2 For 2.2.xx kernels
and early 2.3.xx kernels, you must use a comma when specifying the
+++ /dev/null
-To set up SMP
-
-Configure the kernel and answer Y to CONFIG_SMP.
-
-If you are using LILO, it is handy to have both SMP and non-SMP
-kernel images on hand. Edit /etc/lilo.conf to create an entry
-for another kernel image called "linux-smp" or something.
-
-The next time you compile the kernel, when running a SMP kernel,
-edit linux/Makefile and change "MAKE=make" to "MAKE=make -jN"
-(where N = number of CPU + 1, or if you have tons of memory/swap
- you can just use "-j" without a number). Feel free to experiment
-with this one.
-
-Of course you should time how long each build takes :-)
-Example:
- make config
- time -v sh -c 'make clean install modules modules_install'
-
-If you are using some Compaq MP compliant machines you will need to set
-the operating system in the BIOS settings to "Unixware" - don't ask me
-why Compaqs don't work otherwise.
--- /dev/null
+00-INDEX
+ - This file
+boot-options.txt
+ - AMD64-specific boot options.
+cpu-hotplug-spec
+ - Firmware support for CPU hotplug under Linux/x86-64
+fake-numa-for-cpusets
+ - Using numa=fake and CPUSets for Resource Management
+kernel-stacks
+ - Context-specific per-processor interrupt stacks.
+machinecheck
+ - Configurable sysfs parameters for the x86-64 machine check code.
+mm.txt
+ - Memory layout of x86-64 (4 level page tables, 46 bits physical).
+uefi.txt
+ - Booting Linux via Unified Extensible Firmware Interface.
it has been replaced by a better system and you
should be using that.
-3C359 NETWORK DRIVER
-P: Mike Phillips
-M: mikep@linuxtr.net
-L: netdev@vger.kernel.org
-W: http://www.linuxtr.net
-S: Maintained
-
3C505 NETWORK DRIVER
P: Philip Blundell
M: philb@gnu.org
S: Maintained
BONDING DRIVER
-P: Chad Tindel
-M: ctindel@users.sourceforge.net
P: Jay Vosburgh
M: fubar@us.ibm.com
L: bonding-devel@lists.sourceforge.net
W: http://oss.oracle.com/projects/ocfs2/
S: Supported
-OLYMPIC NETWORK DRIVER
-P: Peter De Shrijver
-M: p2@ace.ulyssis.student.kuleuven.ac.be
-P: Mike Phillips
-M: mikep@linuxtr.net
-L: netdev@vger.kernel.org
-W: http://www.linuxtr.net
-S: Maintained
-
OMNIKEY CARDMAN 4000 DRIVER
P: Harald Welte
M: laforge@gnumonks.org
RAYLINK/WEBGEAR 802.11 WIRELESS LAN DRIVER
P: Corey Thomas
-M: corey@world.std.com
+M: coreythomas@charter.net
L: linux-wireless@vger.kernel.org
S: Maintained
W: http://sourceforge.net/projects/tlan/
S: Maintained
-TOKEN-RING NETWORK DRIVER
-P: Mike Phillips
-M: mikep@linuxtr.net
-L: netdev@vger.kernel.org
-W: http://www.linuxtr.net
-S: Maintained
-
TOSHIBA ACPI EXTRAS DRIVER
P: John Belmonte
M: toshiba_acpi@memebeam.org
S: Maintained
TRIVIAL PATCHES
-P: Adrian Bunk
+P: Jesper Juhl
M: trivial@kernel.org
L: linux-kernel@vger.kernel.org
-W: http://www.kernel.org/pub/linux/kernel/people/bunk/trivial/
-T: git kernel.org:/pub/scm/linux/kernel/git/bunk/trivial.git
-S: Maintained
-
-TMS380 TOKEN-RING NETWORK DRIVER
-P: Adam Fritzler
-M: mid@auk.cx
-L: linux-tr@linuxtr.net
-W: http://www.auk.cx/tms380tr/
S: Maintained
TULIP NETWORK DRIVER
# Single targets
# ---------------------------------------------------------------------------
# Single targets are compatible with:
-# - build whith mixed source and output
+# - build with mixed source and output
# - build with separate output dir 'make O=...'
# - external modules
#
--- /dev/null
+#
+# General architecture dependent options
+#
+
+config OPROFILE
+ tristate "OProfile system profiling (EXPERIMENTAL)"
+ depends on PROFILING
+ depends on HAVE_OPROFILE
+ help
+ OProfile is a profiling system capable of profiling the
+ whole system, include the kernel, kernel modules, libraries,
+ and applications.
+
+ If unsure, say N.
+
+config HAVE_OPROFILE
+ def_bool n
+
+config KPROBES
+ bool "Kprobes"
+ depends on KALLSYMS && MODULES
+ depends on HAVE_KPROBES
+ help
+ Kprobes allows you to trap at almost any kernel address and
+ execute a callback function. register_kprobe() establishes
+ a probepoint and specifies the callback. Kprobes is useful
+ for kernel debugging, non-intrusive instrumentation and testing.
+ If in doubt, say "N".
+
+config HAVE_KPROBES
+ def_bool n
config ALPHA
bool
default y
+ select HAVE_OPROFILE
help
The Alpha is a 64-bit general-purpose processor designed and
marketed by the Digital Equipment Corporation of blessed memory,
singleprocessor machines. On a singleprocessor machine, the kernel
will run faster if you say N here.
- See also the <file:Documentation/smp.txt>, and the SMP-HOWTO
- available at <http://www.tldp.org/docs.html#howto>.
+ See also the SMP-HOWTO available at
+ <http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/alpha/Kconfig.debug"
# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
default y
select RTC_LIB
select SYS_SUPPORTS_APM_EMULATION
+ select HAVE_OPROFILE
+ select HAVE_KPROBES if (!XIP_KERNEL)
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
config ARCH_MTD_XIP
bool
+if OPROFILE
+
+config OPROFILE_ARMV6
+ def_bool y
+ depends on CPU_V6 && !SMP
+ select OPROFILE_ARM11_CORE
+
+config OPROFILE_MPCORE
+ def_bool y
+ depends on CPU_V6 && SMP
+ select OPROFILE_ARM11_CORE
+
+config OPROFILE_ARM11_CORE
+ bool
+
+endif
+
config VECTORS_BASE
hex
default 0xffff0000 if MMU || CPU_HIGH_VECTOR
processor machines. On a single processor machine, the kernel will
run faster if you say N here.
- See also the <file:Documentation/smp.txt>,
- <file:Documentation/i386/IO-APIC.txt>,
+ See also <file:Documentation/i386/IO-APIC.txt>,
<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
<http://www.linuxdoc.org/docs.html#howto>.
source "fs/Kconfig"
-source "arch/arm/Kconfig.instrumentation"
-
source "arch/arm/Kconfig.debug"
source "security/Kconfig"
+++ /dev/null
-menuconfig INSTRUMENTATION
- bool "Instrumentation Support"
- default y
- ---help---
- Say Y here to get to see options related to performance measurement,
- system-wide debugging, and testing. This option alone does not add any
- kernel code.
-
- If you say N, all options in this submenu will be skipped and
- disabled. If you're trying to debug the kernel itself, go see the
- Kernel Hacking menu.
-
-if INSTRUMENTATION
-
-config PROFILING
- bool "Profiling support (EXPERIMENTAL)"
- help
- Say Y here to enable the extended profiling support mechanisms used
- by profilers such as OProfile.
-
-config OPROFILE
- tristate "OProfile system profiling (EXPERIMENTAL)"
- depends on PROFILING && !UML
- help
- OProfile is a profiling system capable of profiling the
- whole system, include the kernel, kernel modules, libraries,
- and applications.
-
- If unsure, say N.
-
-config OPROFILE_ARMV6
- bool
- depends on OPROFILE && CPU_V6 && !SMP
- default y
- select OPROFILE_ARM11_CORE
-
-config OPROFILE_MPCORE
- bool
- depends on OPROFILE && CPU_V6 && SMP
- default y
- select OPROFILE_ARM11_CORE
-
-config OPROFILE_ARM11_CORE
- bool
-
-config KPROBES
- bool "Kprobes"
- depends on KALLSYMS && MODULES && !UML && !XIP_KERNEL
- help
- Kprobes allows you to trap at almost any kernel address and
- execute a callback function. register_kprobe() establishes
- a probepoint and specifies the callback. Kprobes is useful
- for kernel debugging, non-intrusive instrumentation and testing.
- If in doubt, say "N".
-
-config MARKERS
- bool "Activate markers"
- help
- Place an empty function call at each marker site. Can be
- dynamically changed for a probe function.
-
-endif # INSTRUMENTATION
/*
* There are three devices connected to the SSP interface:
* 1. A touchscreen controller (TI ADS7846 compatible)
- * 2. An LCD contoller (with some Backlight functionality)
+ * 2. An LCD controller (with some Backlight functionality)
* 3. A battery monitoring IC (Maxim MAX1111)
*
* Each device uses a different speed/mode of communication.
ucb1x00_adc_enable(ucb);
ucb1x00_io_write(ucb, COLLIE_TC35143_GPIO_TMP_ON, 0);
- /* >1010 = battery removed, 460 = 22C ?, higer = lower temp ? */
+ /* >1010 = battery removed, 460 = 22C ?, higher = lower temp ? */
voltage = ucb1x00_adc_read(ucb, UCB_ADC_INP_AD0, UCB_SYNC);
ucb1x00_io_write(ucb, 0, COLLIE_TC35143_GPIO_TMP_ON);
ucb1x00_adc_disable(ucb);
* Mark IRQ_LCD valid
*
* 25-Jul-2005 Ben Dooks
- * Split the S3C2440 IRQ code to seperate file
+ * Split the S3C2440 IRQ code to separate file
*/
#include <linux/init.h>
# With EMBEDDED=n, we get lots of stuff automatically selected
# that we usually don't need on AVR32.
select EMBEDDED
+ select HAVE_OPROFILE
+ select HAVE_KPROBES
help
AVR32 is a high-performance 32-bit RISC microprocessor core,
designed for cost-sensitive embedded applications, with particular
config ARCH_HAS_ILOG2_U64
def_bool n
-config ARCH_SUPPORTS_OPROFILE
- def_bool y
-
config GENERIC_HWEIGHT
def_bool y
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/avr32/Kconfig.debug"
source "security/Kconfig"
config BLACKFIN
bool
default y
+ select HAVE_OPROFILE
config ZONE_DMA
bool
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/blackfin/Kconfig.debug"
source "security/Kconfig"
source "drivers/usb/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/cris/Kconfig.debug"
source "security/Kconfig"
Setting this option causes the FR-V atomic operations to be mostly
implemented out-of-line.
- See Documentation/fujitsu/frv/atomic-ops.txt for more information.
+ See Documentation/frv/atomic-ops.txt for more information.
config HIGHMEM
bool "High memory support"
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/frv/Kconfig.debug"
source "security/Kconfig"
andi.p gr5,#~PSR_ET,gr5
# set CCCR.CC3 to Undefined to abort atomic-modify completion inside the kernel
- # - for an explanation of how it works, see: Documentation/fujitsu/frv/atomic-ops.txt
+ # - for an explanation of how it works, see: Documentation/frv/atomic-ops.txt
andi gr25,#~0xc0,gr25
sti gr20,@(gr28,#REG_TBR)
sti gr22,@(sp,#REG_SP)
# set CCCR.CC3 to Undefined to abort atomic-modify completion inside the kernel
- # - for an explanation of how it works, see: Documentation/fujitsu/frv/atomic-ops.txt
+ # - for an explanation of how it works, see: Documentation/frv/atomic-ops.txt
movsg cccr,gr20
andi gr20,#~0xc0,gr20
movgs gr20,cccr
/* atomic-ops.S: kernel atomic operations
*
* For an explanation of how atomic ops work in this arch, see:
- * Documentation/fujitsu/frv/atomic-ops.txt
+ * Documentation/frv/atomic-ops.txt
*
* Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/h8300/Kconfig.debug"
source "security/Kconfig"
printk("virtual vector at 0x%08lx\n",(unsigned long)ramvec);
#if defined(CONFIG_GDB_DEBUG)
- /* save orignal break vector */
+ /* save original break vector */
break_vec = ramvec[TRAP3_VEC];
#else
break_vec = VECTOR(trace_break);
select ACPI if (!IA64_HP_SIM)
select PM if (!IA64_HP_SIM)
select ARCH_SUPPORTS_MSI
+ select HAVE_OPROFILE
+ select HAVE_KPROBES
default y
help
The Itanium Processor Family is Intel's 64-bit successor to
single processor systems. On a single processor system, the kernel
will run faster if you say N here.
- See also the <file:Documentation/smp.txt> and the SMP-HOWTO
- available at <http://www.tldp.org/docs.html#howto>.
+ See also the SMP-HOWTO available at
+ <http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
source "arch/ia64/hp/sim/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/ia64/Kconfig.debug"
source "security/Kconfig"
config M32R
bool
default y
+ select HAVE_OPROFILE
config SBUS
bool
Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
Management" code will be disabled if you say Y here.
- See also the <file:Documentation/smp.txt>,
- and the SMP-HOWTO available at
+ See also the SMP-HOWTO available at
<http://www.linuxdoc.org/docs.html#howto>.
If you don't know what to do here, say N.
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/m32r/Kconfig.debug"
source "security/Kconfig"
return 0;
}
- /* Recover orignal instruction code. */
+ /* Recover original instruction code. */
*code = p->insn[i];
/* Shift debug trap entries. */
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/m68k/Kconfig.debug"
source "security/Kconfig"
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/m68knommu/Kconfig.debug"
source "security/Kconfig"
config MIPS
bool
default y
+ select HAVE_OPROFILE
# Horrible source of confusion. Die, die, die ...
select EMBEDDED
select RTC_LIB
People using multiprocessor machines who say Y here should also say
Y to "Enhanced Real Time Clock Support", below.
- See also the <file:Documentation/smp.txt> and the SMP-HOWTO
- available at <http://www.tldp.org/docs.html#howto>.
+ See also the SMP-HOWTO available at
+ <http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/mips/Kconfig.debug"
source "security/Kconfig"
#endif
if (assert && devsel != 0) {
- // supress signal to cardbus
+ // suppress signal to cardbus
au_writel( 0x00000002, SYS_OUTPUTCLR ); // set EXT_IO3 OFF
}
else {
jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
{
/*
- * Convert jiffies to nanoseconds and seperate with
+ * Convert jiffies to nanoseconds and separate with
* one divide.
*/
u64 nsec = (u64)jiffies * TICK_NSEC;
jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value)
{
/*
- * Convert jiffies to nanoseconds and seperate with
+ * Convert jiffies to nanoseconds and separate with
* one divide.
*/
u64 nsec = (u64)jiffies * TICK_NSEC;
}
}
- /* Run the syscall at the priviledge of the user who loaded the
+ /* Run the syscall at the privilege of the user who loaded the
SP program */
if (vpe_getuid(tclimit))
#endif /* CONFIG_SGI_IP27 */
/*
- * arch_mem_init - initialize memory managment subsystem
+ * arch_mem_init - initialize memory management subsystem
*
* o plat_mem_setup() detects the memory configuration and will record detected
* memory areas using add_memory_region.
*
* At this stage the memory configuration of the system is known to the
- * kernel but generic memory managment system is still entirely uninitialized.
+ * kernel but generic memory management system is still entirely uninitialized.
*
* o bootmem_init()
* o sparse_init()
static atomic_t ipi_timer_latch[NR_CPUS];
/*
- * Number of InterProcessor Interupt (IPI) message buffers to allocate
+ * Number of InterProcessor Interrupt (IPI) message buffers to allocate
*/
#define IPIBUF_PER_CPU 4
if (cpu_data[cpu].vpe_id != cpu_data[smp_processor_id()].vpe_id) {
if (type == SMTC_CLOCK_TICK)
atomic_inc(&ipi_timer_latch[cpu]);
- /* If not on same VPE, enqueue and send cross-VPE interupt */
+ /* If not on same VPE, enqueue and send cross-VPE interrupt */
smtc_ipi_nq(&IPIQ[cpu], pipi);
LOCK_CORE_PRA();
settc(cpu_data[cpu].tc_id);
return;
if (!cpu_has_vint)
- panic("SMTC Kernel requires Vectored Interupt support");
+ panic("SMTC Kernel requires Vectored Interrupt support");
set_vi_handler(MIPS_CPU_IPI_IRQ, ipi_irq_dispatch);
/*
* Do the probing thing on R4000SC and R4400SC processors. Other
* processors don't have a S-cache that would be relevant to the
- * Linux memory managment.
+ * Linux memory management.
*/
switch (c->cputype) {
case CPU_R4000SC:
}
/*
- * hub_pio_init - PIO-related hub initalization
+ * hub_pio_init - PIO-related hub initialization
*
* @hub: hubinfo structure for our hub
*/
config PARISC
def_bool y
+ select HAVE_OPROFILE
help
The PA-RISC microprocessor is designed by Hewlett-Packard and used
in many of their workstations & servers (HP9000 700 and 800 series,
singleprocessor machines. On a singleprocessor machine, the kernel
will run faster if you say N here.
- See also the <file:Documentation/smp.txt>,
- <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
- at <http://www.tldp.org/docs.html#howto>.
+ See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+ available at <http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/parisc/Kconfig.debug"
source "security/Kconfig"
/* save the current process space and pgd */
unsigned long space = mfsp(3), pgd = mfctl(25);
- /* we don't mind taking interrups since they may not
+ /* we don't mind taking interrupts since they may not
* do anything with user space, but we can't
* be preempted here */
preempt_disable();
{HPHW_FIO, 0x005, 0x000A9, 0x00, "AllegroLow Core PCI USB KB"},
{HPHW_FIO, 0x006, 0x000A9, 0x00, "AllegroHigh Core PCI SuperIO RS-232"},
{HPHW_FIO, 0x006, 0x000A9, 0x00, "AllegroHigh Core PCI USB KB"},
- {HPHW_FIO, 0x007, 0x000A9, 0x0, "Miscelaneous PCI Plug-in"},
+ {HPHW_FIO, 0x007, 0x000A9, 0x0, "Miscellaneous PCI Plug-in"},
{HPHW_FIO, 0x00A, 0x000A9, 0x0, "Lego 360 Core PCI SuperIO RS-232"},
{HPHW_FIO, 0x00A, 0x000A9, 0x0, "Lego 360 Core PCI USB KB"},
{HPHW_FIO, 0x004, 0x00320, 0x0, "Metheus Frame Buffer"},
flush_user_icache_range((unsigned long) &frame->tramp[0],
(unsigned long) &frame->tramp[TRAMP_SIZE]);
- /* TRAMP Words 0-4, Lenght 5 = SIGRESTARTBLOCK_TRAMP
+ /* TRAMP Words 0-4, Length 5 = SIGRESTARTBLOCK_TRAMP
* TRAMP Words 5-9, Length 4 = SIGRETURN_TRAMP
* So the SIGRETURN_TRAMP is at the end of SIGRESTARTBLOCK_TRAMP
*/
config PPC
bool
default y
+ select HAVE_OPROFILE
+ select HAVE_KPROBES
config EARLY_PRINTK
bool
source "lib/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/powerpc/Kconfig.debug"
source "security/Kconfig"
config PPC
bool
default y
+ select HAVE_OPROFILE
+ select HAVE_KPROBES
config PPC32
bool
source "lib/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/ppc/Kconfig.debug"
source "security/Kconfig"
config S390
def_bool y
+ select HAVE_OPROFILE
+ select HAVE_KPROBES
source "init/Kconfig"
singleprocessor machines. On a singleprocessor machine, the kernel
will run faster if you say N here.
- See also the <file:Documentation/smp.txt> and the SMP-HOWTO
- available at <http://www.tldp.org/docs.html#howto>.
+ See also the SMP-HOWTO available at
+ <http://www.tldp.org/docs.html#howto>.
Even if you don't know what to do here, say Y.
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/s390/Kconfig.debug"
source "security/Kconfig"
config SUPERH
def_bool y
select EMBEDDED
+ select HAVE_OPROFILE
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
People using multiprocessor machines who say Y here should also say
Y to "Enhanced Real Time Clock Support", below.
- See also the <file:Documentation/smp.txt>,
- <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
- at <http://www.tldp.org/docs.html#howto>.
+ See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+ available at <http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/sh/Kconfig.debug"
source "security/Kconfig"
Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
Management" code will be disabled if you say Y here.
- See also the <file:Documentation/smp.txt>,
- <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
- <http://www.tldp.org/docs.html#howto>.
+ See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+ available at <http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
config SPARC
bool
default y
+ select HAVE_OPROFILE
# Identify this as a Sparc32 build
config SPARC32
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/sparc/Kconfig.debug"
source "security/Kconfig"
struct resource *res;
int order;
- /* XXX why are some lenghts signed, others unsigned? */
+ /* XXX why are some lengths signed, others unsigned? */
if (len <= 0) {
return NULL;
}
*/
dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int direction)
{
- /* XXX why are some lenghts signed, others unsigned? */
+ /* XXX why are some lengths signed, others unsigned? */
if (len <= 0) {
return 0;
}
config SPARC
bool
default y
+ select HAVE_OPROFILE
+ select HAVE_KPROBES
config SPARC64
bool
Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
Management" code will be disabled if you say Y here.
- See also the <file:Documentation/smp.txt>,
- <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
- <http://www.tldp.org/docs.html#howto>.
+ See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+ available at <http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/sparc64/Kconfig.debug"
source "security/Kconfig"
bool
default n
-source "kernel/Kconfig.instrumentation"
-
source "arch/um/Kconfig.debug"
err |= PUTREG(regs, RSI, to, si);
err |= PUTREG(regs, RBP, to, bp);
/*
- * Must use orignal RSP, which is passed in, rather than what's in
+ * Must use original RSP, which is passed in, rather than what's in
* the pt_regs, because that's already been updated to point at the
* signal frame.
*/
source "drivers/usb/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/v850/Kconfig.debug"
source "security/Kconfig"
### Arch settings
config X86
def_bool y
+ select HAVE_OPROFILE
+ select HAVE_KPROBES
config GENERIC_LOCKBREAK
def_bool n
config HAVE_SETUP_PER_CPU_AREA
def_bool X86_64
-config ARCH_SUPPORTS_OPROFILE
- bool
- default y
-
select HAVE_KVM
config ARCH_HIBERNATION_POSSIBLE
Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
Management" code will be disabled if you say Y here.
- See also the <file:Documentation/smp.txt>,
- <file:Documentation/i386/IO-APIC.txt>,
+ See also <file:Documentation/i386/IO-APIC.txt>,
<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
<http://www.tldp.org/docs.html#howto>.
select M486
select X86_REBOOTFIXUPS
select GENERIC_GPIO
+ select LEDS_CLASS
select LEDS_GPIO
help
This option is needed for RDC R-321x system-on-chip, also known
source "fs/Kconfig"
-source "kernel/Kconfig.instrumentation"
-
source "arch/x86/Kconfig.debug"
source "security/Kconfig"
KBUILD_CFLAGS += $(cfi) $(cfi-sigframe)
LDFLAGS := -m elf_$(UTS_MACHINE)
-OBJCOPYFLAGS := -O binary -R .note -R .comment -S
# Speed up the build
KBUILD_CFLAGS += -pipe
#RAMDISK := -DRAMDISK=512
targets := vmlinux.bin setup.bin setup.elf zImage bzImage
-subdir- := compressed
+subdir- := compressed
setup-y += a20.o cmdline.o copy.o cpu.o cpucheck.o edd.o
setup-y += header.o main.o mca.o memory.o pm.o pmjump.o
setup-y += video-bios.o
targets += $(setup-y)
-hostprogs-y := tools/build
+hostprogs-y := mkcpustr tools/build
-HOSTCFLAGS_build.o := $(LINUXINCLUDE)
+HOST_EXTRACFLAGS += $(LINUXINCLUDE)
+
+$(obj)/cpu.o: $(obj)/cpustr.h
+
+quiet_cmd_cpustr = CPUSTR $@
+ cmd_cpustr = $(obj)/mkcpustr > $@
+targets += cpustr.h
+$(obj)/cpustr.h: $(obj)/mkcpustr FORCE
+ $(call if_changed,cpustr)
# ---------------------------------------------------------------------------
$(call if_changed,image)
@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
$(call if_changed,objcopy)
$(call if_changed,ld)
OBJCOPYFLAGS_setup.bin := -O binary
-
$(obj)/setup.bin: $(obj)/setup.elf FORCE
$(call if_changed,objcopy)
$(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@
# Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
-FDARGS =
+FDARGS =
# Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
FDINITRD =
$(call if_changed,ld)
@:
+OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
#ifdef CONFIG_RELOCATABLE
movl %ebp, %ebx
- addl $(LARGE_PAGE_SIZE -1), %ebx
- andl $LARGE_PAGE_MASK, %ebx
+ addl $(PMD_PAGE_SIZE -1), %ebx
+ andl $PMD_PAGE_MASK, %ebx
#else
movl $CONFIG_PHYSICAL_START, %ebx
#endif
/* Start with the delta to where the kernel will run at. */
#ifdef CONFIG_RELOCATABLE
leaq startup_32(%rip) /* - $startup_32 */, %rbp
- addq $(LARGE_PAGE_SIZE - 1), %rbp
- andq $LARGE_PAGE_MASK, %rbp
+ addq $(PMD_PAGE_SIZE - 1), %rbp
+ andq $PMD_PAGE_MASK, %rbp
movq %rbp, %rbx
#else
movq $CONFIG_PHYSICAL_START, %rbp
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
- * Copyright 2007 rPath, Inc. - All Rights Reserved
+ * Copyright 2007-2008 rPath, Inc. - All Rights Reserved
*
* This file is part of the Linux kernel, and is made available under
* the terms of the GNU General Public License version 2.
* ----------------------------------------------------------------------- */
/*
- * arch/i386/boot/cpu.c
+ * arch/x86/boot/cpu.c
*
* Check for obligatory CPU features and abort if the features are not
* present.
#include "bitops.h"
#include <asm/cpufeature.h>
+#include "cpustr.h"
+
static char *cpu_name(int level)
{
static char buf[6];
{
u32 *err_flags;
int cpu_level, req_level;
+ const unsigned char *msg_strs;
check_cpu(&cpu_level, &req_level, &err_flags);
puts("This kernel requires the following features "
"not present on the CPU:\n");
+ msg_strs = (const unsigned char *)x86_cap_strs;
+
for (i = 0; i < NCAPINTS; i++) {
u32 e = err_flags[i];
for (j = 0; j < 32; j++) {
- if (e & 1)
- printf("%d:%d ", i, j);
-
+ int n = (i << 5)+j;
+ if (*msg_strs < n) {
+ /* Skip to the next string */
+ do {
+ msg_strs++;
+ } while (*msg_strs);
+ msg_strs++;
+ }
+ if (e & 1) {
+ if (*msg_strs == n && msg_strs[1])
+ printf("%s ", msg_strs+1);
+ else
+ printf("%d:%d ", i, j);
+ }
e >>= 1;
}
}
--- /dev/null
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2008 rPath, Inc. - All Rights Reserved
+ *
+ * This file is part of the Linux kernel, and is made available under
+ * the terms of the GNU General Public License version 2 or (at your
+ * option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * This is a host program to preprocess the CPU strings into a
+ * compact format suitable for the setup code.
+ */
+
+#include <stdio.h>
+
+#include "../kernel/cpu/feature_names.c"
+
+#if NCAPFLAGS > 8
+# error "Need to adjust the boot code handling of CPUID strings"
+#endif
+
+int main(void)
+{
+ int i;
+ const char *str;
+
+ printf("static const char x86_cap_strs[] = \n");
+
+ for (i = 0; i < NCAPINTS*32; i++) {
+ str = x86_cap_flags[i];
+
+ if (i == NCAPINTS*32-1) {
+ /* The last entry must be unconditional; this
+ also consumes the compiler-added null character */
+ if (!str)
+ str = "";
+ printf("\t\"\\x%02x\"\"%s\"\n", i, str);
+ } else if (str) {
+ printf("#if REQUIRED_MASK%d & (1 << %d)\n"
+ "\t\"\\x%02x\"\"%s\\0\"\n"
+ "#endif\n",
+ i >> 5, i & 31, i, str);
+ }
+ }
+ printf("\t;\n");
+ return 0;
+}
obj-$(CONFIG_X86_CPUID) += cpuid.o
obj-$(CONFIG_MICROCODE) += microcode.o
obj-$(CONFIG_PCI) += early-quirks.o
-obj-$(CONFIG_APM) += apm_32.o
+apm-y := apm_32.o
+obj-$(CONFIG_APM) += apm.o
obj-$(CONFIG_X86_SMP) += smp_$(BITS).o smpboot_$(BITS).o tsc_sync.o
obj-$(CONFIG_X86_32_SMP) += smpcommon_32.o
obj-$(CONFIG_X86_64_SMP) += smp_64.o smpboot_64.o tsc_sync.o
obj-y += pcspeaker.o
endif
-obj-$(CONFIG_SCx200) += scx200_32.o
+obj-$(CONFIG_SCx200) += scx200.o
+scx200-y += scx200_32.o
###
# 64 bit specific files
#
obj-y := intel_cacheinfo.o addon_cpuid_features.o
+obj-y += feature_names.o
obj-$(CONFIG_X86_32) += common.o proc.o bugs.o
obj-$(CONFIG_X86_32) += amd.o
* They will insert themselves into the cpu_devs structure.
* Then, when cpu_init() is called, we can just iterate over that array.
*/
-
-extern int intel_cpu_init(void);
-extern int cyrix_init_cpu(void);
-extern int nsc_init_cpu(void);
-extern int amd_init_cpu(void);
-extern int centaur_init_cpu(void);
-extern int transmeta_init_cpu(void);
-extern int nexgen_init_cpu(void);
-extern int umc_init_cpu(void);
-
void __init early_cpu_init(void)
{
intel_cpu_init();
extern void early_init_intel(struct cpuinfo_x86 *c);
extern void early_init_amd(struct cpuinfo_x86 *c);
+/* Specific CPU type init functions */
+int intel_cpu_init(void);
+int amd_init_cpu(void);
+int cyrix_init_cpu(void);
+int nsc_init_cpu(void);
+int centaur_init_cpu(void);
+int transmeta_init_cpu(void);
+int nexgen_init_cpu(void);
+int umc_init_cpu(void);
--- /dev/null
+/*
+ * Strings for the various x86 capability flags.
+ *
+ * This file must not contain any executable code.
+ */
+
+#include "asm/cpufeature.h"
+
+/*
+ * These flag bits must match the definitions in <asm/cpufeature.h>.
+ * NULL means this bit is undefined or reserved; either way it doesn't
+ * have meaning as far as Linux is concerned. Note that it's important
+ * to realize there is a difference between this table and CPUID -- if
+ * applications want to get the raw CPUID data, they should access
+ * /dev/cpu/<cpu_nr>/cpuid instead.
+ */
+const char * const x86_cap_flags[NCAPINTS*32] = {
+ /* Intel-defined */
+ "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
+ "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
+ "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
+ "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
+
+ /* AMD-defined */
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL,
+ NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm",
+ "3dnowext", "3dnow",
+
+ /* Transmeta-defined */
+ "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+
+ /* Other (Linux-defined) */
+ "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr",
+ NULL, NULL, NULL, NULL,
+ "constant_tsc", "up", NULL, "arch_perfmon",
+ "pebs", "bts", NULL, NULL,
+ "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+
+ /* Intel-defined (#2) */
+ "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est",
+ "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
+ NULL, NULL, "dca", "sse4_1", "sse4_2", NULL, NULL, "popcnt",
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+
+ /* VIA/Cyrix/Centaur-defined */
+ NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en",
+ "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+
+ /* AMD-defined (#2) */
+ "lahf_lm", "cmp_legacy", "svm", "extapic",
+ "cr8_legacy", "abm", "sse4a", "misalignsse",
+ "3dnowprefetch", "osvw", "ibs", "sse5",
+ "skinit", "wdt", NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+
+ /* Auxiliary (Linux-defined) */
+ "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+};
+
+const char *const x86_power_flags[32] = {
+ "ts", /* temperature sensor */
+ "fid", /* frequency id control */
+ "vid", /* voltage id control */
+ "ttp", /* thermal trip */
+ "tm",
+ "stc",
+ "100mhzsteps",
+ "hwpstate",
+ "", /* tsc invariant mapped to constant_tsc */
+ /* nothing */
+};
#include <asm/uaccess.h>
#include <asm/ptrace.h>
#include <asm/ds.h>
+#include <asm/bugs.h>
#include "cpu.h"
#include <asm/processor-flags.h>
#include "mtrr.h"
-int arr3_protected;
-
static void
cyrix_get_arr(unsigned int reg, unsigned long *base,
unsigned long *size, mtrr_type * type)
case 4:
return replace_reg;
case 3:
- if (arr3_protected)
- break;
case 2:
case 1:
case 0:
} else {
for (i = 0; i < 7; i++) {
cyrix_get_arr(i, &lbase, &lsize, <ype);
- if ((i == 3) && arr3_protected)
- continue;
if (lsize == 0)
return i;
}
post_set();
}
-#if 0
-/*
- * On Cyrix 6x86(MX) and M II the ARR3 is special: it has connection
- * with the SMM (System Management Mode) mode. So we need the following:
- * Check whether SMI_LOCK (CCR3 bit 0) is set
- * if it is set, write a warning message: ARR3 cannot be changed!
- * (it cannot be changed until the next processor reset)
- * if it is reset, then we can change it, set all the needed bits:
- * - disable access to SMM memory through ARR3 range (CCR1 bit 7 reset)
- * - disable access to SMM memory (CCR1 bit 2 reset)
- * - disable SMM mode (CCR1 bit 1 reset)
- * - disable write protection of ARR3 (CCR6 bit 1 reset)
- * - (maybe) disable ARR3
- * Just to be sure, we enable ARR usage by the processor (CCR5 bit 5 set)
- */
-static void __init
-cyrix_arr_init(void)
-{
- struct set_mtrr_context ctxt;
- unsigned char ccr[7];
- int ccrc[7] = { 0, 0, 0, 0, 0, 0, 0 };
-#ifdef CONFIG_SMP
- int i;
-#endif
-
- /* flush cache and enable MAPEN */
- set_mtrr_prepare_save(&ctxt);
- set_mtrr_cache_disable(&ctxt);
-
- /* Save all CCRs locally */
- ccr[0] = getCx86(CX86_CCR0);
- ccr[1] = getCx86(CX86_CCR1);
- ccr[2] = getCx86(CX86_CCR2);
- ccr[3] = ctxt.ccr3;
- ccr[4] = getCx86(CX86_CCR4);
- ccr[5] = getCx86(CX86_CCR5);
- ccr[6] = getCx86(CX86_CCR6);
-
- if (ccr[3] & 1) {
- ccrc[3] = 1;
- arr3_protected = 1;
- } else {
- /* Disable SMM mode (bit 1), access to SMM memory (bit 2) and
- * access to SMM memory through ARR3 (bit 7).
- */
- if (ccr[1] & 0x80) {
- ccr[1] &= 0x7f;
- ccrc[1] |= 0x80;
- }
- if (ccr[1] & 0x04) {
- ccr[1] &= 0xfb;
- ccrc[1] |= 0x04;
- }
- if (ccr[1] & 0x02) {
- ccr[1] &= 0xfd;
- ccrc[1] |= 0x02;
- }
- arr3_protected = 0;
- if (ccr[6] & 0x02) {
- ccr[6] &= 0xfd;
- ccrc[6] = 1; /* Disable write protection of ARR3 */
- setCx86(CX86_CCR6, ccr[6]);
- }
- /* Disable ARR3. This is safe now that we disabled SMM. */
- /* cyrix_set_arr_up (3, 0, 0, 0, FALSE); */
- }
- /* If we changed CCR1 in memory, change it in the processor, too. */
- if (ccrc[1])
- setCx86(CX86_CCR1, ccr[1]);
-
- /* Enable ARR usage by the processor */
- if (!(ccr[5] & 0x20)) {
- ccr[5] |= 0x20;
- ccrc[5] = 1;
- setCx86(CX86_CCR5, ccr[5]);
- }
-#ifdef CONFIG_SMP
- for (i = 0; i < 7; i++)
- ccr_state[i] = ccr[i];
- for (i = 0; i < 8; i++)
- cyrix_get_arr(i,
- &arr_state[i].base, &arr_state[i].size,
- &arr_state[i].type);
-#endif
-
- set_mtrr_done(&ctxt); /* flush cache and disable MAPEN */
-
- if (ccrc[5])
- printk(KERN_INFO "mtrr: ARR usage was not enabled, enabled manually\n");
- if (ccrc[3])
- printk(KERN_INFO "mtrr: ARR3 cannot be changed\n");
-/*
- if ( ccrc[1] & 0x80) printk ("mtrr: SMM memory access through ARR3 disabled\n");
- if ( ccrc[1] & 0x04) printk ("mtrr: SMM memory access disabled\n");
- if ( ccrc[1] & 0x02) printk ("mtrr: SMM mode disabled\n");
-*/
- if (ccrc[6])
- printk(KERN_INFO "mtrr: ARR3 was write protected, unprotected\n");
-}
-#endif
-
static struct mtrr_ops cyrix_mtrr_ops = {
.vendor = X86_VENDOR_CYRIX,
// .init = cyrix_arr_init,
static void set_mtrr(unsigned int reg, unsigned long base,
unsigned long size, mtrr_type type);
-#ifndef CONFIG_X86_64
-extern int arr3_protected;
-#else
-#define arr3_protected 0
-#endif
-
void set_mtrr_ops(struct mtrr_ops * ops)
{
if (ops->vendor && ops->vendor < X86_VENDOR_NUM)
printk(KERN_WARNING "mtrr: register: %d too big\n", reg);
goto out;
}
- if (is_cpu(CYRIX) && !use_intel()) {
- if ((reg == 3) && arr3_protected) {
- printk(KERN_WARNING "mtrr: ARR3 cannot be changed\n");
- goto out;
- }
- }
mtrr_if->get(reg, &lbase, &lsize, <ype);
if (lsize < 1) {
printk(KERN_WARNING "mtrr: MTRR %d not used\n", reg);
* These should be called implicitly, but we can't yet until all the initcall
* stuff is done...
*/
-extern void amd_init_mtrr(void);
-extern void cyrix_init_mtrr(void);
-extern void centaur_init_mtrr(void);
-
static void __init init_ifs(void)
{
#ifndef CONFIG_X86_64
const char *mtrr_attrib_to_str(int x);
void mtrr_wrmsr(unsigned, unsigned, unsigned);
+/* CPU specific mtrr init functions */
+int amd_init_mtrr(void);
+int cyrix_init_mtrr(void);
+int centaur_init_mtrr(void);
*/
static int show_cpuinfo(struct seq_file *m, void *v)
{
- /*
- * These flag bits must match the definitions in <asm/cpufeature.h>.
- * NULL means this bit is undefined or reserved; either way it doesn't
- * have meaning as far as Linux is concerned. Note that it's important
- * to realize there is a difference between this table and CPUID -- if
- * applications want to get the raw CPUID data, they should access
- * /dev/cpu/<cpu_nr>/cpuid instead.
- */
- static const char * const x86_cap_flags[] = {
- /* Intel-defined */
- "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
- "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
- "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
- "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
-
- /* AMD-defined */
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL,
- NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm",
- "3dnowext", "3dnow",
-
- /* Transmeta-defined */
- "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Other (Linux-defined) */
- "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr",
- NULL, NULL, NULL, NULL,
- "constant_tsc", "up", NULL, "arch_perfmon",
- "pebs", "bts", NULL, "sync_rdtsc",
- "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Intel-defined (#2) */
- "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est",
- "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
- NULL, NULL, "dca", "sse4_1", "sse4_2", NULL, NULL, "popcnt",
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* VIA/Cyrix/Centaur-defined */
- NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en",
- "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* AMD-defined (#2) */
- "lahf_lm", "cmp_legacy", "svm", "extapic",
- "cr8_legacy", "abm", "sse4a", "misalignsse",
- "3dnowprefetch", "osvw", "ibs", "sse5",
- "skinit", "wdt", NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Auxiliary (Linux-defined) */
- "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- };
- static const char * const x86_power_flags[] = {
- "ts", /* temperature sensor */
- "fid", /* frequency id control */
- "vid", /* voltage id control */
- "ttp", /* thermal trip */
- "tm",
- "stc",
- "100mhzsteps",
- "hwpstate",
- "", /* constant_tsc - moved to flags */
- /* nothing */
- };
struct cpuinfo_x86 *c = v;
int i, n = 0;
int fpu_exception;
/* ----------------------------------------------------------------------- *
- *
- * Copyright 2000 H. Peter Anvin - All Rights Reserved
+ *
+ * Copyright 2000-2008 H. Peter Anvin - All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* and then read in chunks of 16 bytes. A larger size means multiple
* reads of consecutive levels.
*
+ * The lower 32 bits of the file position is used as the incoming %eax,
+ * and the upper 32 bits of the file position as the incoming %ecx,
+ * the latter intended for "counting" eax levels like eax=4.
+ *
* This driver uses /dev/cpu/%d/cpuid where %d is the minor number, and on
* an SMP box will direct the access to CPU %d.
*/
static struct class *cpuid_class;
-struct cpuid_command {
- u32 reg;
- u32 *data;
+struct cpuid_regs {
+ u32 eax, ebx, ecx, edx;
};
static void cpuid_smp_cpuid(void *cmd_block)
{
- struct cpuid_command *cmd = cmd_block;
-
- cpuid(cmd->reg, &cmd->data[0], &cmd->data[1], &cmd->data[2],
- &cmd->data[3]);
-}
-
-static inline void do_cpuid(int cpu, u32 reg, u32 * data)
-{
- struct cpuid_command cmd;
-
- cmd.reg = reg;
- cmd.data = data;
+ struct cpuid_regs *cmd = (struct cpuid_regs *)cmd_block;
- smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1, 1);
+ cpuid_count(cmd->eax, cmd->ecx,
+ &cmd->eax, &cmd->ebx, &cmd->ecx, &cmd->edx);
}
static loff_t cpuid_seek(struct file *file, loff_t offset, int orig)
{
loff_t ret;
+ struct inode *inode = file->f_mapping->host;
- lock_kernel();
-
+ mutex_lock(&inode->i_mutex);
switch (orig) {
case 0:
file->f_pos = offset;
default:
ret = -EINVAL;
}
-
- unlock_kernel();
+ mutex_unlock(&inode->i_mutex);
return ret;
}
size_t count, loff_t * ppos)
{
char __user *tmp = buf;
- u32 data[4];
- u32 reg = *ppos;
+ struct cpuid_regs cmd;
int cpu = iminor(file->f_path.dentry->d_inode);
+ u64 pos = *ppos;
if (count % 16)
return -EINVAL; /* Invalid chunk size */
for (; count; count -= 16) {
- do_cpuid(cpu, reg, data);
- if (copy_to_user(tmp, &data, 16))
+ cmd.eax = pos;
+ cmd.ecx = pos >> 32;
+ smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1, 1);
+ if (copy_to_user(tmp, &cmd, 16))
return -EFAULT;
tmp += 16;
- *ppos = reg++;
+ *ppos = ++pos;
}
return tmp - buf;
}
for_each_online_cpu(i) {
err = cpuid_device_create(i);
- if (err != 0)
+ if (err != 0)
goto out_class;
}
register_hotcpu_notifier(&cpuid_class_cpu_notifier);
}
class_destroy(cpuid_class);
out_chrdev:
- unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");
+ unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");
out:
return err;
}
#endif
}
-#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
static void __init runtime_code_page_mkexec(void)
{
efi_memory_desc_t *md;
- unsigned long end;
void *p;
if (!(__supported_pte_mask & _PAGE_NX))
/* Make EFI runtime service code area executable */
for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
md = p;
- end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
- if (md->type == EFI_RUNTIME_SERVICES_CODE &&
- (end >> PAGE_SHIFT) <= max_pfn_mapped) {
- set_memory_x(md->virt_addr, md->num_pages);
- set_memory_uc(md->virt_addr, md->num_pages);
- }
+
+ if (md->type != EFI_RUNTIME_SERVICES_CODE)
+ continue;
+
+ set_memory_x(md->virt_addr, md->num_pages << EFI_PAGE_SHIFT);
}
- __flush_tlb_all();
}
-#else
-static inline void __init runtime_code_page_mkexec(void) { }
-#endif
/*
* This function will switch the EFI runtime services to virtual mode.
{
efi_memory_desc_t *md;
efi_status_t status;
- unsigned long end;
- void *p;
+ unsigned long size;
+ u64 end, systab;
+ void *p, *va;
efi.systab = NULL;
for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
md = p;
if (!(md->attribute & EFI_MEMORY_RUNTIME))
continue;
- end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
- if ((md->attribute & EFI_MEMORY_WB) &&
- ((end >> PAGE_SHIFT) <= max_pfn_mapped))
- md->virt_addr = (unsigned long)__va(md->phys_addr);
+
+ size = md->num_pages << EFI_PAGE_SHIFT;
+ end = md->phys_addr + size;
+
+ if ((end >> PAGE_SHIFT) <= max_pfn_mapped)
+ va = __va(md->phys_addr);
else
- md->virt_addr = (unsigned long)
- efi_ioremap(md->phys_addr,
- md->num_pages << EFI_PAGE_SHIFT);
- if (!md->virt_addr)
+ va = efi_ioremap(md->phys_addr, size);
+
+ if (md->attribute & EFI_MEMORY_WB)
+ set_memory_uc(md->virt_addr, size);
+
+ md->virt_addr = (u64) (unsigned long) va;
+
+ if (!va) {
printk(KERN_ERR PFX "ioremap of 0x%llX failed!\n",
(unsigned long long)md->phys_addr);
- if ((md->phys_addr <= (unsigned long)efi_phys.systab) &&
- ((unsigned long)efi_phys.systab < end))
- efi.systab = (efi_system_table_t *)(unsigned long)
- (md->virt_addr - md->phys_addr +
- (unsigned long)efi_phys.systab);
+ continue;
+ }
+
+ systab = (u64) (unsigned long) efi_phys.systab;
+ if (md->phys_addr <= systab && systab < end) {
+ systab += md->virt_addr - md->phys_addr;
+ efi.systab = (efi_system_table_t *) (unsigned long) systab;
+ }
}
BUG_ON(!efi.systab);
else
set_pte(kpte, __pte((pte_val(*kpte) | _PAGE_NX) & \
__supported_pte_mask));
- if (level == 4)
- start = (start + PMD_SIZE) & PMD_MASK;
- else
+ if (level == PG_LEVEL_4K)
start = (start + PAGE_SIZE) & PAGE_MASK;
+ else
+ start = (start + PMD_SIZE) & PMD_MASK;
}
}
memmap.nr_map * memmap.desc_size);
}
-void __iomem * __init efi_ioremap(unsigned long offset,
- unsigned long size)
+void __iomem * __init efi_ioremap(unsigned long phys_addr, unsigned long size)
{
static unsigned pages_mapped;
- unsigned long last_addr;
unsigned i, pages;
- last_addr = offset + size - 1;
- offset &= PAGE_MASK;
- pages = (PAGE_ALIGN(last_addr) - offset) >> PAGE_SHIFT;
+ /* phys_addr and size must be page aligned */
+ if ((phys_addr & ~PAGE_MASK) || (size & ~PAGE_MASK))
+ return NULL;
+
+ pages = size >> PAGE_SHIFT;
if (pages_mapped + pages > MAX_EFI_IO_PAGES)
return NULL;
for (i = 0; i < pages; i++) {
__set_fixmap(FIX_EFI_IO_MAP_FIRST_PAGE - pages_mapped,
- offset, PAGE_KERNEL_EXEC_NOCACHE);
- offset += PAGE_SIZE;
+ phys_addr, PAGE_KERNEL);
+ phys_addr += PAGE_SIZE;
pages_mapped++;
}
/* Is the address not 2M aligned? */
movq %rbp, %rax
- andl $~LARGE_PAGE_MASK, %eax
+ andl $~PMD_PAGE_MASK, %eax
testl %eax, %eax
jnz bad_address
/* Add an Identity mapping if I am above 1G */
leaq _text(%rip), %rdi
- andq $LARGE_PAGE_MASK, %rdi
+ andq $PMD_PAGE_MASK, %rdi
movq %rdi, %rax
shrq $PUD_SHIFT, %rax
if (mincount <= pc->size)
return 0;
oldsize = pc->size;
- mincount = (mincount + 511) & (~511);
+ mincount = (mincount + (PAGE_SIZE / LDT_ENTRY_SIZE - 1)) &
+ (~(PAGE_SIZE / LDT_ENTRY_SIZE - 1));
if (mincount * LDT_ENTRY_SIZE > PAGE_SIZE)
newldt = vmalloc(mincount * LDT_ENTRY_SIZE);
else
/* ----------------------------------------------------------------------- *
- *
- * Copyright 2000 H. Peter Anvin - All Rights Reserved
+ *
+ * Copyright 2000-2008 H. Peter Anvin - All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
static loff_t msr_seek(struct file *file, loff_t offset, int orig)
{
- loff_t ret = -EINVAL;
+ loff_t ret;
+ struct inode *inode = file->f_mapping->host;
- lock_kernel();
+ mutex_lock(&inode->i_mutex);
switch (orig) {
case 0:
file->f_pos = offset;
case 1:
file->f_pos += offset;
ret = file->f_pos;
+ break;
+ default:
+ ret = -EINVAL;
}
- unlock_kernel();
+ mutex_unlock(&inode->i_mutex);
return ret;
}
}
a = aper + iommu_size;
- iommu_size -= round_up(a, LARGE_PAGE_SIZE) - a;
+ iommu_size -= round_up(a, PMD_PAGE_SIZE) - a;
if (iommu_size < 64*1024*1024) {
printk(KERN_WARNING
* the backing memory. The GART address is only used by PCI
* devices.
*/
- clear_kernel_mapping((unsigned long)__va(iommu_bus_base), iommu_size);
+ set_memory_np((unsigned long)__va(iommu_bus_base),
+ iommu_size >> PAGE_SHIFT);
/*
* Try to workaround a bug (thanks to BenH)
* because it has nothing to do.
* Give all the remaining CPUS a kick.
*/
- smp_call_function_mask(map, do_nothing, 0, 0);
+ smp_call_function_mask(map, do_nothing, NULL, 0);
} while (!cpus_empty(map));
set_cpus_allowed(current, tmp);
struct cpuinfo_x86 *c = v;
int cpu = 0, i;
- /*
- * These flag bits must match the definitions in <asm/cpufeature.h>.
- * NULL means this bit is undefined or reserved; either way it doesn't
- * have meaning as far as Linux is concerned. Note that it's important
- * to realize there is a difference between this table and CPUID -- if
- * applications want to get the raw CPUID data, they should access
- * /dev/cpu/<cpu_nr>/cpuid instead.
- */
- static const char *const x86_cap_flags[] = {
- /* Intel-defined */
- "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
- "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
- "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
- "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
-
- /* AMD-defined */
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, "nx", NULL, "mmxext", NULL,
- NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm",
- "3dnowext", "3dnow",
-
- /* Transmeta-defined */
- "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Other (Linux-defined) */
- "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr",
- NULL, NULL, NULL, NULL,
- "constant_tsc", "up", NULL, "arch_perfmon",
- "pebs", "bts", NULL, "sync_rdtsc",
- "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Intel-defined (#2) */
- "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est",
- "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
- NULL, NULL, "dca", "sse4_1", "sse4_2", NULL, NULL, "popcnt",
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* VIA/Cyrix/Centaur-defined */
- NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en",
- "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* AMD-defined (#2) */
- "lahf_lm", "cmp_legacy", "svm", "extapic",
- "cr8_legacy", "abm", "sse4a", "misalignsse",
- "3dnowprefetch", "osvw", "ibs", "sse5",
- "skinit", "wdt", NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
-
- /* Auxiliary (Linux-defined) */
- "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- };
- static const char *const x86_power_flags[] = {
- "ts", /* temperature sensor */
- "fid", /* frequency id control */
- "vid", /* voltage id control */
- "ttp", /* thermal trip */
- "tm",
- "stc",
- "100mhzsteps",
- "hwpstate",
- "", /* tsc invariant mapped to constant_tsc */
- /* nothing */
- };
-
-
#ifdef CONFIG_SMP
cpu = c->cpu_index;
#endif
#include <linux/module.h>
#include <linux/sort.h>
#include <asm/uaccess.h>
+#include <asm/asm.h>
extern int rodata_test_data;
"2: mov %[zero], %[rslt]\n"
" ret\n"
".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 8\n"
-#ifdef CONFIG_X86_32
- " .long 0b\n"
- " .long 2b\n"
-#else
- " .quad 0b\n"
- " .quad 2b\n"
-#endif
- ".previous\n"
+ _ASM_EXTABLE(0b,2b)
: [rslt] "=r" (result)
: [fake_code] "r" (address), [zero] "r" (0UL), "0" (result)
);
* trampoline page to make our stack and everything else
* is a mystery.
*
- * In fact we don't actually need a stack so we don't
- * set one up.
- *
- * We jump into the boot/compressed/head.S code. So you'd
- * better be running a compressed kernel image or you
- * won't get very far.
+ * We jump into arch/x86/kernel/head_32.S.
*
* On entry to trampoline_data, the processor is in real mode
* with 16-bit addressing and 16-bit data. CS has some value
* trampoline page to make our stack and everything else
* is a mystery.
*
- * In fact we don't actually need a stack so we don't
- * set one up.
- *
* On entry to trampoline_data, the processor is in real mode
* with 16-bit addressing and 16-bit data. CS has some value
* and IP is zero. Thus, data addresses need to be absolute
static void vmi_write_idt_entry(gate_desc *dt, int entry, const gate_desc *g)
{
u32 *idt_entry = (u32 *)g;
- vmi_ops.write_idt_entry(dt, entry, idt_entry[0], idt_entry[2]);
+ vmi_ops.write_idt_entry(dt, entry, idt_entry[0], idt_entry[1]);
}
static void vmi_write_gdt_entry(struct desc_struct *dt, int entry,
const void *desc, int type)
{
u32 *gdt_entry = (u32 *)desc;
- vmi_ops.write_gdt_entry(dt, entry, gdt_entry[0], gdt_entry[2]);
+ vmi_ops.write_gdt_entry(dt, entry, gdt_entry[0], gdt_entry[1]);
}
static void vmi_write_ldt_entry(struct desc_struct *dt, int entry,
const void *desc)
{
u32 *ldt_entry = (u32 *)desc;
- vmi_ops.write_idt_entry(dt, entry, ldt_entry[0], ldt_entry[2]);
+ vmi_ops.write_idt_entry(dt, entry, ldt_entry[0], ldt_entry[1]);
}
static void vmi_load_sp0(struct tss_struct *tss,
# OK, it's a little counter-intuitive to do this, but it puts it neatly under
# the virtualization menu.
source drivers/lguest/Kconfig
+source drivers/virtio/Kconfig
endif # VIRTUALIZATION
#include <linux/module.h>
/**
- * find_next_bit - find the first set bit in a memory region
+ * find_next_bit - find the next set bit in a memory region
* @addr: The address to base the search on
* @offset: The bitnumber to start searching at
* @size: The maximum size to search
}
/**
- * find_next_zero_bit - find the first zero bit in a memory region
+ * find_next_zero_bit - find the next zero bit in a memory region
* @addr: The address to base the search on
* @offset: The bitnumber to start searching at
* @size: The maximum size to search
#include <linux/hardirq.h>
#include <linux/module.h>
+#include <asm/asm.h>
#include <asm/i387.h>
"3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
" jmp 2b\n"
".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
+ _ASM_EXTABLE(1b,3b)
: : "r" (from) );
"3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
" jmp 2b\n"
".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
+ _ASM_EXTABLE(1b,3b)
: : "r" (from), "r" (to) : "memory");
from+=64;
to+=64;
"3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
" jmp 2b\n"
".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
+ _ASM_EXTABLE(1b,3b)
: : "r" (from) );
for(i=0; i<(4096-320)/64; i++)
"3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
" jmp 2b\n"
".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
+ _ASM_EXTABLE(1b,3b)
: : "r" (from), "r" (to) : "memory");
from+=64;
to+=64;
"3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
" jmp 2b\n"
".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
+ _ASM_EXTABLE(1b,3b)
: : "r" (from) );
for(i=0; i<4096/64; i++)
"3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
" jmp 2b\n"
".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
+ _ASM_EXTABLE(1b,3b)
: : "r" (from), "r" (to) : "memory");
from+=64;
to+=64;
"3: movl %5,%0\n" \
" jmp 2b\n" \
".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 0b,3b\n" \
- ".previous" \
+ _ASM_EXTABLE(0b,3b) \
: "=d"(res), "=c"(count), "=&a" (__d0), "=&S" (__d1), \
"=&D" (__d2) \
: "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \
"3: lea 0(%2,%0,4),%0\n" \
" jmp 2b\n" \
".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 0b,3b\n" \
- " .long 1b,2b\n" \
- ".previous" \
+ _ASM_EXTABLE(0b,3b) \
+ _ASM_EXTABLE(1b,2b) \
: "=&c"(size), "=&D" (__d0) \
: "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0)); \
} while (0)
"3: movq %5,%0\n" \
" jmp 2b\n" \
".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 8\n" \
- " .quad 0b,3b\n" \
- ".previous" \
+ _ASM_EXTABLE(0b,3b) \
: "=r"(res), "=c"(count), "=&a" (__d0), "=&S" (__d1), \
"=&D" (__d2) \
: "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \
"3: lea 0(%[size1],%[size8],8),%[size8]\n"
" jmp 2b\n"
".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 8\n"
- " .quad 0b,3b\n"
- " .quad 1b,2b\n"
- ".previous"
+ _ASM_EXTABLE(0b,3b)
+ _ASM_EXTABLE(1b,2b)
: [size8] "=c"(size), [dst] "=&D" (__d0)
: [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(addr),
[zero] "r" (0UL), [eight] "r" (8UL));
pud = pud_offset(pgd, address);
if (bad_address(pud)) goto bad;
printk("PUD %lx ", pud_val(*pud));
- if (!pud_present(*pud)) goto ret;
+ if (!pud_present(*pud) || pud_large(*pud))
+ goto ret;
pmd = pmd_offset(pud, address);
if (bad_address(pmd)) goto bad;
pmd_t *pmd, *pmd_ref;
pte_t *pte, *pte_ref;
+ /* Make sure we are in vmalloc area */
+ if (!(address >= VMALLOC_START && address < VMALLOC_END))
+ return -1;
+
/* Copy kernel mappings over when needed. This can also
happen within a race in page table update. In the later
case just flush. */
*/
#ifdef CONFIG_X86_32
if (unlikely(address >= TASK_SIZE)) {
+#else
+ if (unlikely(address >= TASK_SIZE64)) {
+#endif
if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
vmalloc_fault(address) >= 0)
return;
goto bad_area_nosemaphore;
}
+
+#ifdef CONFIG_X86_32
/* It's safe to allow irq's after cr2 has been saved and the vmalloc
fault has been handled. */
if (regs->flags & (X86_EFLAGS_IF|VM_MASK))
if (in_atomic() || !mm)
goto bad_area_nosemaphore;
#else /* CONFIG_X86_64 */
- if (unlikely(address >= TASK_SIZE64)) {
- /*
- * Don't check for the module range here: its PML4
- * is always initialized because it's shared with the main
- * kernel text. Only vmalloc may need PML4 syncups.
- */
- if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) &&
- ((address >= VMALLOC_START && address < VMALLOC_END))) {
- if (vmalloc_fault(address) >= 0)
- return;
- }
-
- /* Can handle a stale RO->RW TLB */
- if (spurious_fault(address, error_code))
- return;
-
- /*
- * Don't take the mm semaphore here. If we fixup a prefetch
- * fault we could otherwise deadlock.
- */
- goto bad_area_nosemaphore;
- }
if (likely(regs->flags & X86_EFLAGS_IF))
local_irq_enable();
#include <linux/initrd.h>
#include <linux/cpumask.h>
+#include <asm/asm.h>
#include <asm/processor.h>
#include <asm/system.h>
#include <asm/uaccess.h>
"1: movb %1, %0 \n"
" xorl %2, %2 \n"
"2: \n"
- ".section __ex_table, \"a\"\n"
- " .align 4 \n"
- " .long 1b, 2b \n"
- ".previous \n"
+ _ASM_EXTABLE(1b,2b)
:"=m" (*(char *)fix_to_virt(FIX_WP_TEST)),
"=q" (tmp_reg),
"=r" (flag)
int i = pmd_index(address);
for (; i < PTRS_PER_PMD; i++, address += PMD_SIZE) {
- unsigned long entry;
pmd_t *pmd = pmd_page + pmd_index(address);
if (address >= end) {
if (pmd_val(*pmd))
continue;
- entry = __PAGE_KERNEL_LARGE|_PAGE_GLOBAL|address;
- entry &= __supported_pte_mask;
- set_pmd(pmd, __pmd(entry));
+ set_pte((pte_t *)pmd,
+ pfn_pte(address >> PAGE_SHIFT, PAGE_KERNEL_LARGE));
}
}
}
#endif
-/*
- * Unmap a kernel mapping if it exists. This is useful to avoid
- * prefetches from the CPU leading to inconsistent cache lines.
- * address and size must be aligned to 2MB boundaries.
- * Does nothing when the mapping doesn't exist.
- */
-void __init clear_kernel_mapping(unsigned long address, unsigned long size)
-{
- unsigned long end = address + size;
-
- BUG_ON(address & ~LARGE_PAGE_MASK);
- BUG_ON(size & ~LARGE_PAGE_MASK);
-
- for (; address < end; address += LARGE_PAGE_SIZE) {
- pgd_t *pgd = pgd_offset_k(address);
- pud_t *pud;
- pmd_t *pmd;
-
- if (pgd_none(*pgd))
- continue;
-
- pud = pud_offset(pgd, address);
- if (pud_none(*pud))
- continue;
-
- pmd = pmd_offset(pud, address);
- if (!pmd || pmd_none(*pmd))
- continue;
-
- if (!(pmd_val(*pmd) & _PAGE_PSE)) {
- /*
- * Could handle this, but it should not happen
- * currently:
- */
- printk(KERN_ERR "clear_kernel_mapping: "
- "mapping has been split. will leak memory\n");
- pmd_ERROR(*pmd);
- }
- set_pmd(pmd, __pmd(0));
- }
- __flush_tlb_all();
-}
-
/*
* Memory hotplug specific functions
*/
* Fix up the linear direct mapping of the kernel to avoid cache attribute
* conflicts.
*/
-static int ioremap_change_attr(unsigned long paddr, unsigned long size,
+static int ioremap_change_attr(unsigned long vaddr, unsigned long size,
enum ioremap_mode mode)
{
- unsigned long vaddr = (unsigned long)__va(paddr);
unsigned long nrpages = size >> PAGE_SHIFT;
- unsigned int level;
int err;
- /* No change for pages after the last mapping */
- if ((paddr + size - 1) >= (max_pfn_mapped << PAGE_SHIFT))
- return 0;
-
- /*
- * If there is no identity map for this address,
- * change_page_attr_addr is unnecessary
- */
- if (!lookup_address(vaddr, &level))
- return 0;
-
switch (mode) {
case IOR_MODE_UNCACHED:
default:
static void __iomem *__ioremap(unsigned long phys_addr, unsigned long size,
enum ioremap_mode mode)
{
- void __iomem *addr;
+ unsigned long pfn, offset, last_addr, vaddr;
struct vm_struct *area;
- unsigned long offset, last_addr;
pgprot_t prot;
/* Don't allow wraparound or zero size */
/*
* Don't allow anybody to remap normal RAM that we're using..
*/
- for (offset = phys_addr >> PAGE_SHIFT; offset < max_pfn_mapped &&
- (offset << PAGE_SHIFT) < last_addr; offset++) {
- if (page_is_ram(offset))
+ for (pfn = phys_addr >> PAGE_SHIFT; pfn < max_pfn_mapped &&
+ (pfn << PAGE_SHIFT) < last_addr; pfn++) {
+ if (page_is_ram(pfn) && pfn_valid(pfn) &&
+ !PageReserved(pfn_to_page(pfn)))
return NULL;
}
if (!area)
return NULL;
area->phys_addr = phys_addr;
- addr = (void __iomem *) area->addr;
- if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
- phys_addr, prot)) {
- remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
+ vaddr = (unsigned long) area->addr;
+ if (ioremap_page_range(vaddr, vaddr + size, phys_addr, prot)) {
+ remove_vm_area((void *)(vaddr & PAGE_MASK));
return NULL;
}
- if (ioremap_change_attr(phys_addr, size, mode) < 0) {
- vunmap(addr);
+ if (ioremap_change_attr(vaddr, size, mode) < 0) {
+ vunmap(area->addr);
return NULL;
}
- return (void __iomem *) (offset + (char __iomem *)addr);
+ return (void __iomem *) (vaddr + offset);
}
/**
return;
}
- /* Reset the direct mapping. Can block */
- ioremap_change_attr(p->phys_addr, p->size, IOR_MODE_CACHED);
-
/* Finally remove it */
o = remove_vm_area((void *)addr);
BUG_ON(p != o || o == NULL);
if (node_data[nodeid] == NULL)
return;
nodedata_phys = __pa(node_data[nodeid]);
+ printk(KERN_INFO " NODE_DATA [%016lx - %016lx]\n", nodedata_phys,
+ nodedata_phys + pgdat_size - 1);
memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t));
NODE_DATA(nodeid)->bdata = &plat_node_bdata[nodeid];
return;
}
bootmap_start = __pa(bootmap);
- Dprintk("bootmap start %lu pages %lu\n", bootmap_start, bootmap_pages);
bootmap_size = init_bootmem_node(NODE_DATA(nodeid),
bootmap_start >> PAGE_SHIFT,
start_pfn, end_pfn);
+ printk(KERN_INFO " bootmap [%016lx - %016lx] pages %lx\n",
+ bootmap_start, bootmap_start + bootmap_size - 1,
+ bootmap_pages);
+
free_bootmem_with_active_regions(nodeid, end);
reserve_bootmem_node(NODE_DATA(nodeid), nodedata_phys, pgdat_size);
for (k = 0; k < len[i]; k++) {
pte = lookup_address(addr[i] + k*PAGE_SIZE, &level);
- if (!pte || pgprot_val(pte_pgprot(*pte)) == 0) {
+ if (!pte || pgprot_val(pte_pgprot(*pte)) == 0 ||
+ !(pte_val(*pte) & _PAGE_PRESENT)) {
addr[i] = 0;
break;
}
#include <asm/uaccess.h>
#include <asm/pgalloc.h>
+/*
+ * The current flushing context - we pass it instead of 5 arguments:
+ */
+struct cpa_data {
+ unsigned long vaddr;
+ pgprot_t mask_set;
+ pgprot_t mask_clr;
+ int numpages;
+ int flushtlb;
+};
+
static inline int
within(unsigned long addr, unsigned long start, unsigned long end)
{
static void __cpa_flush_all(void *arg)
{
+ unsigned long cache = (unsigned long)arg;
+
/*
* Flush all to work around Errata in early athlons regarding
* large page flushing.
*/
__flush_tlb_all();
- if (boot_cpu_data.x86_model >= 4)
+ if (cache && boot_cpu_data.x86_model >= 4)
wbinvd();
}
-static void cpa_flush_all(void)
+static void cpa_flush_all(unsigned long cache)
{
BUG_ON(irqs_disabled());
- on_each_cpu(__cpa_flush_all, NULL, 1, 1);
+ on_each_cpu(__cpa_flush_all, (void *) cache, 1, 1);
}
static void __cpa_flush_range(void *arg)
__flush_tlb_all();
}
-static void cpa_flush_range(unsigned long start, int numpages)
+static void cpa_flush_range(unsigned long start, int numpages, int cache)
{
unsigned int i, level;
unsigned long addr;
on_each_cpu(__cpa_flush_range, NULL, 1, 1);
+ if (!cache)
+ return;
+
/*
* We only need to flush on one CPU,
* clflush is a MESI-coherent instruction that
/*
* Only flush present addresses:
*/
- if (pte && pte_present(*pte))
+ if (pte && (pte_val(*pte) & _PAGE_PRESENT))
clflush_cache_range((void *) addr, PAGE_SIZE);
}
}
+#define HIGH_MAP_START __START_KERNEL_map
+#define HIGH_MAP_END (__START_KERNEL_map + KERNEL_TEXT_SIZE)
+
+
+/*
+ * Converts a virtual address to a X86-64 highmap address
+ */
+static unsigned long virt_to_highmap(void *address)
+{
+#ifdef CONFIG_X86_64
+ return __pa((unsigned long)address) + HIGH_MAP_START - phys_base;
+#else
+ return (unsigned long)address;
+#endif
+}
+
/*
* Certain areas of memory on x86 require very specific protection flags,
* for example the BIOS area or kernel text. Callers don't always get this
*/
if (within(address, (unsigned long)_text, (unsigned long)_etext))
pgprot_val(forbidden) |= _PAGE_NX;
+ /*
+ * Do the same for the x86-64 high kernel mapping
+ */
+ if (within(address, virt_to_highmap(_text), virt_to_highmap(_etext)))
+ pgprot_val(forbidden) |= _PAGE_NX;
+
#ifdef CONFIG_DEBUG_RODATA
/* The .rodata section needs to be read-only */
if (within(address, (unsigned long)__start_rodata,
(unsigned long)__end_rodata))
pgprot_val(forbidden) |= _PAGE_RW;
+ /*
+ * Do the same for the x86-64 high kernel mapping
+ */
+ if (within(address, virt_to_highmap(__start_rodata),
+ virt_to_highmap(__end_rodata)))
+ pgprot_val(forbidden) |= _PAGE_RW;
#endif
prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));
return prot;
}
+/*
+ * Lookup the page table entry for a virtual address. Return a pointer
+ * to the entry and the level of the mapping.
+ *
+ * Note: We return pud and pmd either when the entry is marked large
+ * or when the present bit is not set. Otherwise we would return a
+ * pointer to a nonexisting mapping.
+ */
pte_t *lookup_address(unsigned long address, int *level)
{
pgd_t *pgd = pgd_offset_k(address);
if (pgd_none(*pgd))
return NULL;
+
pud = pud_offset(pgd, address);
if (pud_none(*pud))
return NULL;
+
+ *level = PG_LEVEL_1G;
+ if (pud_large(*pud) || !pud_present(*pud))
+ return (pte_t *)pud;
+
pmd = pmd_offset(pud, address);
if (pmd_none(*pmd))
return NULL;
*level = PG_LEVEL_2M;
- if (pmd_large(*pmd))
+ if (pmd_large(*pmd) || !pmd_present(*pmd))
return (pte_t *)pmd;
*level = PG_LEVEL_4K;
+
return pte_offset_kernel(pmd, address);
}
+/*
+ * Set the new pmd in all the pgds we know about:
+ */
static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
{
/* change init_mm */
if (!SHARED_KERNEL_PMD) {
struct page *page;
+ address = __pa(address);
list_for_each_entry(page, &pgd_list, lru) {
pgd_t *pgd;
pud_t *pud;
#endif
}
+static int
+try_preserve_large_page(pte_t *kpte, unsigned long address,
+ struct cpa_data *cpa)
+{
+ unsigned long nextpage_addr, numpages, pmask, psize, flags;
+ pte_t new_pte, old_pte, *tmp;
+ pgprot_t old_prot, new_prot;
+ int level, do_split = 1;
+
+ /*
+ * An Athlon 64 X2 showed hard hangs if we tried to preserve
+ * largepages and changed the PSE entry from RW to RO.
+ *
+ * As AMD CPUs have a long series of erratas in this area,
+ * (and none of the known ones seem to explain this hang),
+ * disable this code until the hang can be debugged:
+ */
+ if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
+ return 1;
+
+ spin_lock_irqsave(&pgd_lock, flags);
+ /*
+ * Check for races, another CPU might have split this page
+ * up already:
+ */
+ tmp = lookup_address(address, &level);
+ if (tmp != kpte)
+ goto out_unlock;
+
+ switch (level) {
+ case PG_LEVEL_2M:
+ psize = PMD_PAGE_SIZE;
+ pmask = PMD_PAGE_MASK;
+ break;
+#ifdef CONFIG_X86_64
+ case PG_LEVEL_1G:
+ psize = PMD_PAGE_SIZE;
+ pmask = PMD_PAGE_MASK;
+ break;
+#endif
+ default:
+ do_split = -EINVAL;
+ goto out_unlock;
+ }
+
+ /*
+ * Calculate the number of pages, which fit into this large
+ * page starting at address:
+ */
+ nextpage_addr = (address + psize) & pmask;
+ numpages = (nextpage_addr - address) >> PAGE_SHIFT;
+ if (numpages < cpa->numpages)
+ cpa->numpages = numpages;
+
+ /*
+ * We are safe now. Check whether the new pgprot is the same:
+ */
+ old_pte = *kpte;
+ old_prot = new_prot = pte_pgprot(old_pte);
+
+ pgprot_val(new_prot) &= ~pgprot_val(cpa->mask_clr);
+ pgprot_val(new_prot) |= pgprot_val(cpa->mask_set);
+ new_prot = static_protections(new_prot, address);
+
+ /*
+ * If there are no changes, return. maxpages has been updated
+ * above:
+ */
+ if (pgprot_val(new_prot) == pgprot_val(old_prot)) {
+ do_split = 0;
+ goto out_unlock;
+ }
+
+ /*
+ * We need to change the attributes. Check, whether we can
+ * change the large page in one go. We request a split, when
+ * the address is not aligned and the number of pages is
+ * smaller than the number of pages in the large page. Note
+ * that we limited the number of possible pages already to
+ * the number of pages in the large page.
+ */
+ if (address == (nextpage_addr - psize) && cpa->numpages == numpages) {
+ /*
+ * The address is aligned and the number of pages
+ * covers the full page.
+ */
+ new_pte = pfn_pte(pte_pfn(old_pte), canon_pgprot(new_prot));
+ __set_pmd_pte(kpte, address, new_pte);
+ cpa->flushtlb = 1;
+ do_split = 0;
+ }
+
+out_unlock:
+ spin_unlock_irqrestore(&pgd_lock, flags);
+
+ return do_split;
+}
+
static int split_large_page(pte_t *kpte, unsigned long address)
{
- pgprot_t ref_prot = pte_pgprot(pte_clrhuge(*kpte));
+ unsigned long flags, pfn, pfninc = 1;
gfp_t gfp_flags = GFP_KERNEL;
- unsigned long flags;
- unsigned long addr;
+ unsigned int i, level;
pte_t *pbase, *tmp;
+ pgprot_t ref_prot;
struct page *base;
- unsigned int i, level;
#ifdef CONFIG_DEBUG_PAGEALLOC
- gfp_flags = __GFP_HIGH | __GFP_NOFAIL | __GFP_NOWARN;
gfp_flags = GFP_ATOMIC | __GFP_NOWARN;
#endif
base = alloc_pages(gfp_flags, 0);
* up for us already:
*/
tmp = lookup_address(address, &level);
- if (tmp != kpte) {
- WARN_ON_ONCE(1);
+ if (tmp != kpte)
goto out_unlock;
- }
- address = __pa(address);
- addr = address & LARGE_PAGE_MASK;
pbase = (pte_t *)page_address(base);
#ifdef CONFIG_X86_32
paravirt_alloc_pt(&init_mm, page_to_pfn(base));
#endif
+ ref_prot = pte_pgprot(pte_clrhuge(*kpte));
+
+#ifdef CONFIG_X86_64
+ if (level == PG_LEVEL_1G) {
+ pfninc = PMD_PAGE_SIZE >> PAGE_SHIFT;
+ pgprot_val(ref_prot) |= _PAGE_PSE;
+ }
+#endif
- pgprot_val(ref_prot) &= ~_PAGE_NX;
- for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
- set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));
+ /*
+ * Get the target pfn from the original entry:
+ */
+ pfn = pte_pfn(*kpte);
+ for (i = 0; i < PTRS_PER_PTE; i++, pfn += pfninc)
+ set_pte(&pbase[i], pfn_pte(pfn, ref_prot));
/*
- * Install the new, split up pagetable. Important detail here:
+ * Install the new, split up pagetable. Important details here:
*
* On Intel the NX bit of all levels must be cleared to make a
* page executable. See section 4.13.2 of Intel 64 and IA-32
* Architectures Software Developer's Manual).
+ *
+ * Mark the entry present. The current mapping might be
+ * set to not present, which we preserved above.
*/
ref_prot = pte_pgprot(pte_mkexec(pte_clrhuge(*kpte)));
+ pgprot_val(ref_prot) |= _PAGE_PRESENT;
__set_pmd_pte(kpte, address, mk_pte(base, ref_prot));
base = NULL;
return 0;
}
-static int
-__change_page_attr(unsigned long address, unsigned long pfn,
- pgprot_t mask_set, pgprot_t mask_clr)
+static int __change_page_attr(unsigned long address, struct cpa_data *cpa)
{
+ int level, do_split, err;
struct page *kpte_page;
- int level, err = 0;
pte_t *kpte;
-#ifdef CONFIG_X86_32
- BUG_ON(pfn > max_low_pfn);
-#endif
-
repeat:
kpte = lookup_address(address, &level);
if (!kpte)
BUG_ON(PageCompound(kpte_page));
if (level == PG_LEVEL_4K) {
- pgprot_t new_prot = pte_pgprot(*kpte);
pte_t new_pte, old_pte = *kpte;
+ pgprot_t new_prot = pte_pgprot(old_pte);
+
+ if(!pte_val(old_pte)) {
+ printk(KERN_WARNING "CPA: called for zero pte. "
+ "vaddr = %lx cpa->vaddr = %lx\n", address,
+ cpa->vaddr);
+ WARN_ON(1);
+ return -EINVAL;
+ }
- pgprot_val(new_prot) &= ~pgprot_val(mask_clr);
- pgprot_val(new_prot) |= pgprot_val(mask_set);
+ pgprot_val(new_prot) &= ~pgprot_val(cpa->mask_clr);
+ pgprot_val(new_prot) |= pgprot_val(cpa->mask_set);
new_prot = static_protections(new_prot, address);
- new_pte = pfn_pte(pfn, canon_pgprot(new_prot));
- BUG_ON(pte_pfn(new_pte) != pte_pfn(old_pte));
+ /*
+ * We need to keep the pfn from the existing PTE,
+ * after all we're only going to change it's attributes
+ * not the memory it points to
+ */
+ new_pte = pfn_pte(pte_pfn(old_pte), canon_pgprot(new_prot));
+
+ /*
+ * Do we really change anything ?
+ */
+ if (pte_val(old_pte) != pte_val(new_pte)) {
+ set_pte_atomic(kpte, new_pte);
+ cpa->flushtlb = 1;
+ }
+ cpa->numpages = 1;
+ return 0;
+ }
+
+ /*
+ * Check, whether we can keep the large page intact
+ * and just change the pte:
+ */
+ do_split = try_preserve_large_page(kpte, address, cpa);
+ /*
+ * When the range fits into the existing large page,
+ * return. cp->numpages and cpa->tlbflush have been updated in
+ * try_large_page:
+ */
+ if (do_split <= 0)
+ return do_split;
- set_pte_atomic(kpte, new_pte);
- } else {
- err = split_large_page(kpte, address);
- if (!err)
- goto repeat;
+ /*
+ * We have to split the large page:
+ */
+ err = split_large_page(kpte, address);
+ if (!err) {
+ cpa->flushtlb = 1;
+ goto repeat;
}
+
return err;
}
*
* Modules and drivers should use the set_memory_* APIs instead.
*/
-
-#define HIGH_MAP_START __START_KERNEL_map
-#define HIGH_MAP_END (__START_KERNEL_map + KERNEL_TEXT_SIZE)
-
-static int
-change_page_attr_addr(unsigned long address, pgprot_t mask_set,
- pgprot_t mask_clr)
+static int change_page_attr_addr(struct cpa_data *cpa)
{
- unsigned long phys_addr = __pa(address);
- unsigned long pfn = phys_addr >> PAGE_SHIFT;
int err;
+ unsigned long address = cpa->vaddr;
#ifdef CONFIG_X86_64
+ unsigned long phys_addr = __pa(address);
+
/*
* If we are inside the high mapped kernel range, then we
* fixup the low mapping first. __va() returns the virtual
address = (unsigned long) __va(phys_addr);
#endif
- err = __change_page_attr(address, pfn, mask_set, mask_clr);
+ err = __change_page_attr(address, cpa);
if (err)
return err;
/*
* Calc the high mapping address. See __phys_addr()
* for the non obvious details.
+ *
+ * Note that NX and other required permissions are
+ * checked in static_protections().
*/
address = phys_addr + HIGH_MAP_START - phys_base;
- /* Make sure the kernel mappings stay executable */
- pgprot_val(mask_clr) |= _PAGE_NX;
/*
* Our high aliases are imprecise, because we check
* everything between 0 and KERNEL_TEXT_SIZE, so do
* not propagate lookup failures back to users:
*/
- __change_page_attr(address, pfn, mask_set, mask_clr);
+ __change_page_attr(address, cpa);
}
#endif
return err;
}
-static int __change_page_attr_set_clr(unsigned long addr, int numpages,
- pgprot_t mask_set, pgprot_t mask_clr)
+static int __change_page_attr_set_clr(struct cpa_data *cpa)
{
- unsigned int i;
- int ret;
+ int ret, numpages = cpa->numpages;
- for (i = 0; i < numpages ; i++, addr += PAGE_SIZE) {
- ret = change_page_attr_addr(addr, mask_set, mask_clr);
+ while (numpages) {
+ /*
+ * Store the remaining nr of pages for the large page
+ * preservation check.
+ */
+ cpa->numpages = numpages;
+ ret = change_page_attr_addr(cpa);
if (ret)
return ret;
- }
+ /*
+ * Adjust the number of pages with the result of the
+ * CPA operation. Either a large page has been
+ * preserved or a single page update happened.
+ */
+ BUG_ON(cpa->numpages > numpages);
+ numpages -= cpa->numpages;
+ cpa->vaddr += cpa->numpages * PAGE_SIZE;
+ }
return 0;
}
+static inline int cache_attr(pgprot_t attr)
+{
+ return pgprot_val(attr) &
+ (_PAGE_PAT | _PAGE_PAT_LARGE | _PAGE_PWT | _PAGE_PCD);
+}
+
static int change_page_attr_set_clr(unsigned long addr, int numpages,
pgprot_t mask_set, pgprot_t mask_clr)
{
- int ret = __change_page_attr_set_clr(addr, numpages, mask_set,
- mask_clr);
+ struct cpa_data cpa;
+ int ret, cache;
+
+ /*
+ * Check, if we are requested to change a not supported
+ * feature:
+ */
+ mask_set = canon_pgprot(mask_set);
+ mask_clr = canon_pgprot(mask_clr);
+ if (!pgprot_val(mask_set) && !pgprot_val(mask_clr))
+ return 0;
+
+ cpa.vaddr = addr;
+ cpa.numpages = numpages;
+ cpa.mask_set = mask_set;
+ cpa.mask_clr = mask_clr;
+ cpa.flushtlb = 0;
+
+ ret = __change_page_attr_set_clr(&cpa);
+
+ /*
+ * Check whether we really changed something:
+ */
+ if (!cpa.flushtlb)
+ return ret;
+
+ /*
+ * No need to flush, when we did not set any of the caching
+ * attributes:
+ */
+ cache = cache_attr(mask_set);
/*
* On success we use clflush, when the CPU supports it to
* wbindv):
*/
if (!ret && cpu_has_clflush)
- cpa_flush_range(addr, numpages);
+ cpa_flush_range(addr, numpages, cache);
else
- cpa_flush_all();
+ cpa_flush_all(cache);
return ret;
}
return set_memory_rw(addr, numpages);
}
-
-#if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_CPA_DEBUG)
-static inline int __change_page_attr_set(unsigned long addr, int numpages,
- pgprot_t mask)
-{
- return __change_page_attr_set_clr(addr, numpages, mask, __pgprot(0));
-}
-
-static inline int __change_page_attr_clear(unsigned long addr, int numpages,
- pgprot_t mask)
-{
- return __change_page_attr_set_clr(addr, numpages, __pgprot(0), mask);
-}
-#endif
-
#ifdef CONFIG_DEBUG_PAGEALLOC
static int __set_pages_p(struct page *page, int numpages)
{
- unsigned long addr = (unsigned long)page_address(page);
+ struct cpa_data cpa = { .vaddr = (unsigned long) page_address(page),
+ .numpages = numpages,
+ .mask_set = __pgprot(_PAGE_PRESENT | _PAGE_RW),
+ .mask_clr = __pgprot(0)};
- return __change_page_attr_set(addr, numpages,
- __pgprot(_PAGE_PRESENT | _PAGE_RW));
+ return __change_page_attr_set_clr(&cpa);
}
static int __set_pages_np(struct page *page, int numpages)
{
- unsigned long addr = (unsigned long)page_address(page);
+ struct cpa_data cpa = { .vaddr = (unsigned long) page_address(page),
+ .numpages = numpages,
+ .mask_set = __pgprot(0),
+ .mask_clr = __pgprot(_PAGE_PRESENT | _PAGE_RW)};
- return __change_page_attr_clear(addr, numpages,
- __pgprot(_PAGE_PRESENT));
+ return __change_page_attr_set_clr(&cpa);
}
void kernel_map_pages(struct page *page, int numpages, int enable)
list_del(&page->lru);
}
+#define UNSHARED_PTRS_PER_PGD \
+ (SHARED_KERNEL_PMD ? USER_PTRS_PER_PGD : PTRS_PER_PGD)
-
-#if (PTRS_PER_PMD == 1)
-/* Non-PAE pgd constructor */
-static void pgd_ctor(void *pgd)
+static void pgd_ctor(void *p)
{
+ pgd_t *pgd = p;
unsigned long flags;
- /* !PAE, no pagetable sharing */
+ /* Clear usermode parts of PGD */
memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t));
spin_lock_irqsave(&pgd_lock, flags);
- /* must happen under lock */
- clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD,
- swapper_pg_dir + USER_PTRS_PER_PGD,
- KERNEL_PGD_PTRS);
- paravirt_alloc_pd_clone(__pa(pgd) >> PAGE_SHIFT,
- __pa(swapper_pg_dir) >> PAGE_SHIFT,
- USER_PTRS_PER_PGD,
- KERNEL_PGD_PTRS);
- pgd_list_add(pgd);
- spin_unlock_irqrestore(&pgd_lock, flags);
-}
-#else /* PTRS_PER_PMD > 1 */
-/* PAE pgd constructor */
-static void pgd_ctor(void *pgd)
-{
- /* PAE, kernel PMD may be shared */
-
- if (SHARED_KERNEL_PMD) {
- clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD,
+ /* If the pgd points to a shared pagetable level (either the
+ ptes in non-PAE, or shared PMD in PAE), then just copy the
+ references from swapper_pg_dir. */
+ if (PAGETABLE_LEVELS == 2 ||
+ (PAGETABLE_LEVELS == 3 && SHARED_KERNEL_PMD)) {
+ clone_pgd_range(pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
KERNEL_PGD_PTRS);
- } else {
- unsigned long flags;
+ paravirt_alloc_pd_clone(__pa(pgd) >> PAGE_SHIFT,
+ __pa(swapper_pg_dir) >> PAGE_SHIFT,
+ USER_PTRS_PER_PGD,
+ KERNEL_PGD_PTRS);
+ }
- memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t));
- spin_lock_irqsave(&pgd_lock, flags);
+ /* list required to sync kernel mapping updates */
+ if (!SHARED_KERNEL_PMD)
pgd_list_add(pgd);
- spin_unlock_irqrestore(&pgd_lock, flags);
- }
+
+ spin_unlock_irqrestore(&pgd_lock, flags);
}
-#endif /* PTRS_PER_PMD */
static void pgd_dtor(void *pgd)
{
spin_unlock_irqrestore(&pgd_lock, flags);
}
-#define UNSHARED_PTRS_PER_PGD \
- (SHARED_KERNEL_PMD ? USER_PTRS_PER_PGD : PTRS_PER_PGD)
-
#ifdef CONFIG_X86_PAE
/*
* Mop up any pmd pages which may still be attached to the pgd.
void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
{
- /* This is called just after the pmd has been detached from
- the pgd, which requires a full tlb flush to be recognized
- by the CPU. Rather than incurring multiple tlb flushes
- while the address space is being pulled down, make the tlb
- gathering machinery do a full flush when we're done. */
- tlb->fullmm = 1;
-
paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT);
tlb_remove_page(tlb, virt_to_page(pmd));
}
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/nodemask.h>
+#include <mach_apic.h>
#include "pci.h"
+#define XQUAD_PORTIO_BASE 0xfe400000
+#define XQUAD_PORTIO_QUAD 0x40000 /* 256k per quad. */
+
#define BUS2QUAD(global) (mp_bus_id_to_node[global])
#define BUS2LOCAL(global) (mp_bus_id_to_local[global])
#define QUADLOCAL2BUS(quad,local) (quad_local_to_mp_bus_id[quad][local])
+extern void *xquad_portio; /* Where the IO area was mapped */
+#define XQUAD_PORT_ADDR(port, quad) (xquad_portio + (XQUAD_PORTIO_QUAD*quad) + port)
+
#define PCI_CONF1_MQ_ADDRESS(bus, devfn, reg) \
(0x80000000 | (BUS2LOCAL(bus) << 16) | (devfn << 8) | (reg & ~3))
+static void write_cf8(unsigned bus, unsigned devfn, unsigned reg)
+{
+ unsigned val = PCI_CONF1_MQ_ADDRESS(bus, devfn, reg);
+ if (xquad_portio)
+ writel(val, XQUAD_PORT_ADDR(0xcf8, BUS2QUAD(bus)));
+ else
+ outl(val, 0xCF8);
+}
+
static int pci_conf1_mq_read(unsigned int seg, unsigned int bus,
unsigned int devfn, int reg, int len, u32 *value)
{
unsigned long flags;
+ void *adr __iomem = XQUAD_PORT_ADDR(0xcfc, BUS2QUAD(bus));
if (!value || (bus >= MAX_MP_BUSSES) || (devfn > 255) || (reg > 255))
return -EINVAL;
spin_lock_irqsave(&pci_config_lock, flags);
- outl_quad(PCI_CONF1_MQ_ADDRESS(bus, devfn, reg), 0xCF8, BUS2QUAD(bus));
+ write_cf8(bus, devfn, reg);
switch (len) {
case 1:
- *value = inb_quad(0xCFC + (reg & 3), BUS2QUAD(bus));
+ if (xquad_portio)
+ *value = readb(adr + (reg & 3));
+ else
+ *value = inb(0xCFC + (reg & 3));
break;
case 2:
- *value = inw_quad(0xCFC + (reg & 2), BUS2QUAD(bus));
+ if (xquad_portio)
+ *value = readw(adr + (reg & 2));
+ else
+ *value = inw(0xCFC + (reg & 2));
break;
case 4:
- *value = inl_quad(0xCFC, BUS2QUAD(bus));
+ if (xquad_portio)
+ *value = readl(adr);
+ else
+ *value = inl(0xCFC);
break;
}
unsigned int devfn, int reg, int len, u32 value)
{
unsigned long flags;
+ void *adr __iomem = XQUAD_PORT_ADDR(0xcfc, BUS2QUAD(bus));
if ((bus >= MAX_MP_BUSSES) || (devfn > 255) || (reg > 255))
return -EINVAL;
spin_lock_irqsave(&pci_config_lock, flags);
- outl_quad(PCI_CONF1_MQ_ADDRESS(bus, devfn, reg), 0xCF8, BUS2QUAD(bus));
+ write_cf8(bus, devfn, reg);
switch (len) {
case 1:
- outb_quad((u8)value, 0xCFC + (reg & 3), BUS2QUAD(bus));
+ if (xquad_portio)
+ writeb(value, adr + (reg & 3));
+ else
+ outb((u8)value, 0xCFC + (reg & 3));
break;
case 2:
- outw_quad((u16)value, 0xCFC + (reg & 2), BUS2QUAD(bus));
+ if (xquad_portio)
+ writew(value, adr + (reg & 2));
+ else
+ outw((u16)value, 0xCFC + (reg & 2));
break;
case 4:
- outl_quad((u32)value, 0xCFC, BUS2QUAD(bus));
+ if (xquad_portio)
+ writel(value, adr + reg);
+ else
+ outl((u32)value, 0xCFC);
break;
}
provide one yourself.
endmenu
-source "kernel/Kconfig.instrumentation"
-
source "arch/xtensa/Kconfig.debug"
source "security/Kconfig"
source "drivers/auxdisplay/Kconfig"
source "drivers/uio/Kconfig"
-
-source "drivers/virtio/Kconfig"
endmenu
if (ACPI_SUCCESS(status))
device->flags.wake_capable = 1;
- /* TBD: Peformance management */
+ /* TBD: Performance management */
return 0;
}
/*******************************************************************************
*
- * Module Name: utresrc - Resource managment utilities
+ * Module Name: utresrc - Resource management utilities
*
******************************************************************************/
if (is_slave) {
/* clear TIME1|IE1|PPE1|DTE1 */
master_data &= 0xff0f;
- /* Enable SITRE (seperate slave timing register) */
+ /* Enable SITRE (separate slave timing register) */
master_data |= 0x4000;
/* enable PPE1, IE1 and TIME1 as needed */
master_data |= (control << 4);
/**
* ata_do_set_mode - Program timings and issue SET FEATURES - XFER
* @link: link on which timings will be programmed
- * @r_failed_dev: out paramter for failed device
+ * @r_failed_dev: out parameter for failed device
*
* Standard implementation of the function used to tune and set
* ATA device disk transfer mode (PIO3, UDMA6, etc.). If
if (irq < 0)
return irq;
- /* Setup struct containing private infomation */
+ /* Setup struct containing private information */
info = kzalloc(sizeof(struct at32_ide_info), GFP_KERNEL);
if (!info)
return -ENOMEM;
idetm_data &= 0xCC0F;
idetm_data |= (control << 4);
- /* Slave timing in seperate register */
+ /* Slave timing in separate register */
pci_read_config_byte(dev, 0x44, &slave_data);
slave_data &= 0x0F << shift;
slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << shift;
idetm_data &= 0xCC0F;
idetm_data |= (control << 4);
- /* Slave timing in seperate register */
+ /* Slave timing in separate register */
pci_read_config_byte(dev, 0x44, &slave_data);
slave_data &= 0xF0;
slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << 4;
if (adev->dma_mode < XFER_UDMA_0) {
/* bits 3-0 hold recovery timing bits 8-10 active timing and
- the higer bits are dependant on the device */
+ the higher bits are dependant on the device */
timing &= ~0x870F;
timing |= mwdma_bits[speed];
} else {
if (adev->dma_mode < XFER_UDMA_0) {
/* bits 3-0 hold recovery timing bits 8-10 active timing and
- the higer bits are dependant on the device, bit 15 udma */
+ the higher bits are dependant on the device, bit 15 udma */
timing &= ~0x870F;
timing |= mwdma_bits[speed];
} else {
int device_create_file(struct device *dev, struct device_attribute *attr)
{
int error = 0;
- if (get_device(dev)) {
+ if (dev)
error = sysfs_create_file(&dev->kobj, &attr->attr);
- put_device(dev);
- }
return error;
}
*/
void device_remove_file(struct device *dev, struct device_attribute *attr)
{
- if (get_device(dev)) {
+ if (dev)
sysfs_remove_file(&dev->kobj, &attr->attr);
- put_device(dev);
- }
}
/**
}
EXPORT_SYMBOL_GPL(device_create);
-/**
- * find_device - finds a device that was created with device_create()
- * @class: pointer to the struct class that this device was registered with
- * @devt: the dev_t of the device that was previously registered
- */
-static struct device *find_device(struct class *class, dev_t devt)
+static int __match_devt(struct device *dev, void *data)
{
- struct device *dev = NULL;
- struct device *dev_tmp;
+ dev_t *devt = data;
- down(&class->sem);
- list_for_each_entry(dev_tmp, &class->devices, node) {
- if (dev_tmp->devt == devt) {
- dev = dev_tmp;
- break;
- }
- }
- up(&class->sem);
- return dev;
+ return dev->devt == *devt;
}
/**
{
struct device *dev;
- dev = find_device(class, devt);
- if (dev)
+ dev = class_find_device(class, &devt, __match_devt);
+ if (dev) {
+ put_device(dev);
device_unregister(dev);
+ }
}
EXPORT_SYMBOL_GPL(device_destroy);
{
struct device *dev;
- dev = find_device(class, devt);
- if (dev)
+ dev = class_find_device(class, &devt, __match_devt);
+ if (dev) {
device_pm_schedule_removal(dev);
+ put_device(dev);
+ }
}
EXPORT_SYMBOL_GPL(destroy_suspended_device);
#endif /* CONFIG_PM_SLEEP */
struct driver_attribute *attr)
{
int error;
- if (get_driver(drv)) {
+ if (drv)
error = sysfs_create_file(&drv->p->kobj, &attr->attr);
- put_driver(drv);
- } else
+ else
error = -EINVAL;
return error;
}
void driver_remove_file(struct device_driver *drv,
struct driver_attribute *attr)
{
- if (get_driver(drv)) {
+ if (drv)
sysfs_remove_file(&drv->p->kobj, &attr->attr);
- put_driver(drv);
- }
}
EXPORT_SYMBOL_GPL(driver_remove_file);
list_move_tail(&dev->power.entry, &dpm_destroy);
mutex_unlock(&dpm_list_mtx);
}
+EXPORT_SYMBOL_GPL(device_pm_schedule_removal);
/**
* pm_sleep_lock - mutual exclusion for registration and suspend
extern void device_pm_add(struct device *);
extern void device_pm_remove(struct device *);
-extern void device_pm_schedule_removal(struct device *);
extern int pm_sleep_lock(void);
extern void pm_sleep_unlock(void);
tristate "Virtio block driver (EXPERIMENTAL)"
depends on EXPERIMENTAL && VIRTIO
---help---
- This is the virtual block driver for lguest. Say Y or M.
+ This is the virtual block driver for virtio. It can be used with
+ lguest or QEMU based VMMs (like KVM or Xen). Say Y or M.
endif # BLK_DEV
rc = sendcmd(CCISS_RESET_MSG, ctlr, NULL, 0, 2, 0, 0,
(unsigned char *) &cmd_in_trouble->Header.LUN.LunAddrBytes[0],
TYPE_MSG);
- /* sendcmd turned off interrputs on the board, turn 'em back on. */
+ /* sendcmd turned off interrupts on the board, turn 'em back on. */
(*c)->access.set_intr_mask(*c, CCISS_INTR_ON);
if (rc == 0)
return SUCCESS;
0, 2, 0, 0,
(unsigned char *) &cmd_to_abort->Header.LUN.LunAddrBytes[0],
TYPE_MSG);
- /* sendcmd turned off interrputs on the board, turn 'em back on. */
+ /* sendcmd turned off interrupts on the board, turn 'em back on. */
(*c)->access.set_intr_mask(*c, CCISS_INTR_ON);
if (rc == 0)
return SUCCESS;
#include <linux/scatterlist.h>
#define VIRTIO_MAX_SG (3+MAX_PHYS_SEGMENTS)
+#define PART_BITS 4
+
+static int major, index;
-static unsigned char virtblk_index = 'a';
struct virtio_blk
{
spinlock_t lock;
struct virtio_blk_inhdr in_hdr;
};
-static bool blk_done(struct virtqueue *vq)
+static void blk_done(struct virtqueue *vq)
{
struct virtio_blk *vblk = vq->vdev->priv;
struct virtblk_req *vbr;
/* In case queue is stopped waiting for more buffers. */
blk_start_queue(vblk->disk->queue);
spin_unlock_irqrestore(&vblk->lock, flags);
- return true;
}
static bool do_req(struct request_queue *q, struct virtio_blk *vblk,
(void __user *)data);
}
+/* We provide getgeo only to please some old bootloader/partitioning tools */
+static int virtblk_getgeo(struct block_device *bd, struct hd_geometry *geo)
+{
+ /* some standard values, similar to sd */
+ geo->heads = 1 << 6;
+ geo->sectors = 1 << 5;
+ geo->cylinders = get_capacity(bd->bd_disk) >> 11;
+ return 0;
+}
+
static struct block_device_operations virtblk_fops = {
- .ioctl = virtblk_ioctl,
- .owner = THIS_MODULE,
+ .ioctl = virtblk_ioctl,
+ .owner = THIS_MODULE,
+ .getgeo = virtblk_getgeo,
};
+static int index_to_minor(int index)
+{
+ return index << PART_BITS;
+}
+
static int virtblk_probe(struct virtio_device *vdev)
{
struct virtio_blk *vblk;
- int err, major;
- void *token;
- unsigned int len;
+ int err;
u64 cap;
u32 v;
+ if (index_to_minor(index) >= 1 << MINORBITS)
+ return -ENOSPC;
+
vdev->priv = vblk = kmalloc(sizeof(*vblk), GFP_KERNEL);
if (!vblk) {
err = -ENOMEM;
vblk->vdev = vdev;
/* We expect one virtqueue, for output. */
- vblk->vq = vdev->config->find_vq(vdev, blk_done);
+ vblk->vq = vdev->config->find_vq(vdev, 0, blk_done);
if (IS_ERR(vblk->vq)) {
err = PTR_ERR(vblk->vq);
goto out_free_vblk;
goto out_free_vq;
}
- major = register_blkdev(0, "virtblk");
- if (major < 0) {
- err = major;
- goto out_mempool;
- }
-
/* FIXME: How many partitions? How long is a piece of string? */
- vblk->disk = alloc_disk(1 << 4);
+ vblk->disk = alloc_disk(1 << PART_BITS);
if (!vblk->disk) {
err = -ENOMEM;
- goto out_unregister_blkdev;
+ goto out_mempool;
}
vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock);
goto out_put_disk;
}
- sprintf(vblk->disk->disk_name, "vd%c", virtblk_index++);
+ if (index < 26) {
+ sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26);
+ } else if (index < (26 + 1) * 26) {
+ sprintf(vblk->disk->disk_name, "vd%c%c",
+ 'a' + index / 26 - 1, 'a' + index % 26);
+ } else {
+ const unsigned int m1 = (index / 26 - 1) / 26 - 1;
+ const unsigned int m2 = (index / 26 - 1) % 26;
+ const unsigned int m3 = index % 26;
+ sprintf(vblk->disk->disk_name, "vd%c%c%c",
+ 'a' + m1, 'a' + m2, 'a' + m3);
+ }
+
vblk->disk->major = major;
- vblk->disk->first_minor = 0;
+ vblk->disk->first_minor = index_to_minor(index);
vblk->disk->private_data = vblk;
vblk->disk->fops = &virtblk_fops;
+ index++;
/* If barriers are supported, tell block layer that queue is ordered */
- token = vdev->config->find(vdev, VIRTIO_CONFIG_BLK_F, &len);
- if (virtio_use_bit(vdev, token, len, VIRTIO_BLK_F_BARRIER))
+ if (vdev->config->feature(vdev, VIRTIO_BLK_F_BARRIER))
blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_TAG, NULL);
- err = virtio_config_val(vdev, VIRTIO_CONFIG_BLK_F_CAPACITY, &cap);
- if (err) {
- dev_err(&vdev->dev, "Bad/missing capacity in config\n");
- goto out_cleanup_queue;
- }
+ /* Host must always specify the capacity. */
+ __virtio_config_val(vdev, offsetof(struct virtio_blk_config, capacity),
+ &cap);
/* If capacity is too big, truncate with warning. */
if ((sector_t)cap != cap) {
}
set_capacity(vblk->disk, cap);
- err = virtio_config_val(vdev, VIRTIO_CONFIG_BLK_F_SIZE_MAX, &v);
+ /* Host can optionally specify maximum segment size and number of
+ * segments. */
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_SIZE_MAX,
+ offsetof(struct virtio_blk_config, size_max),
+ &v);
if (!err)
blk_queue_max_segment_size(vblk->disk->queue, v);
- else if (err != -ENOENT) {
- dev_err(&vdev->dev, "Bad SIZE_MAX in config\n");
- goto out_cleanup_queue;
- }
- err = virtio_config_val(vdev, VIRTIO_CONFIG_BLK_F_SEG_MAX, &v);
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_SEG_MAX,
+ offsetof(struct virtio_blk_config, seg_max),
+ &v);
if (!err)
blk_queue_max_hw_segments(vblk->disk->queue, v);
- else if (err != -ENOENT) {
- dev_err(&vdev->dev, "Bad SEG_MAX in config\n");
- goto out_cleanup_queue;
- }
add_disk(vblk->disk);
return 0;
-out_cleanup_queue:
- blk_cleanup_queue(vblk->disk->queue);
out_put_disk:
put_disk(vblk->disk);
-out_unregister_blkdev:
- unregister_blkdev(major, "virtblk");
out_mempool:
mempool_destroy(vblk->pool);
out_free_vq:
struct virtio_blk *vblk = vdev->priv;
int major = vblk->disk->major;
+ /* Nothing should be pending. */
BUG_ON(!list_empty(&vblk->reqs));
+
+ /* Stop all the virtqueues. */
+ vdev->config->reset(vdev);
+
blk_cleanup_queue(vblk->disk->queue);
put_disk(vblk->disk);
unregister_blkdev(major, "virtblk");
mempool_destroy(vblk->pool);
- /* There should be nothing in the queue now, so no need to shutdown */
vdev->config->del_vq(vblk->vq);
kfree(vblk);
}
static int __init init(void)
{
+ major = register_blkdev(0, "virtblk");
+ if (major < 0)
+ return major;
return register_virtio_driver(&virtio_blk);
}
static void __exit fini(void)
{
+ unregister_blkdev(major, "virtblk");
unregister_virtio_driver(&virtio_blk);
}
module_init(init);
outb(lcr, iobase + UART_LCR); /* Set 8N1 */
outb(fcr, iobase + UART_FCR); /* Enable FIFO's */
- /* Turn on interrups */
+ /* Turn on interrupts */
outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
spin_unlock_irqrestore(&(info->lock), flags);
vma->vm_ops = &drm_vm_dma_ops;
vma->vm_flags |= VM_RESERVED; /* Don't swap */
+ vma->vm_flags |= VM_DONTEXPAND;
vma->vm_file = filp; /* Needed for drm_vm_open() */
drm_vm_open_locked(vma);
return -EINVAL; /* This should never happen. */
}
vma->vm_flags |= VM_RESERVED; /* Don't swap */
+ vma->vm_flags |= VM_DONTEXPAND;
vma->vm_file = filp; /* Needed for drm_vm_open() */
drm_vm_open_locked(vma);
#define R300_RE_FOG_START 0x4298
/* Not sure why there are duplicate of factor and constant values.
- * My best guess so far is that there are seperate zbiases for test and write.
+ * My best guess so far is that there are separate zbiases for test and write.
* Ordering might be wrong.
* Some of the tests indicate that fgl has a fallback implementation of zbias
* via pixel shaders.
}
/*
- * This function is used internally by ring buffer mangement code.
+ * This function is used internally by ring buffer management code.
*
* Returns virtual pointer to ring buffer.
*/
*
* NOTES:
* - Locking is required for safe execution of EFI calls with regards
- * to interrrupts and SMP.
+ * to interrupts and SMP.
*
* TODO (December 1999):
* - provide the API to set/get the WakeUp Alarm (different from the
res |= cflag & ((CBAUD ^ CBAUDEX) | PARODD | PARENB | CSTOPB | CSIZE);
/*
* This gets a little confusing. The Digi cards have their own
- * representation of c_cflags controling baud rate. For the most part
+ * representation of c_cflags controlling baud rate. For the most part
* this is identical to the Linux implementation. However; Digi
* supports one rate (76800) that Linux doesn't. This means that the
* c_cflag entry that would normally mean 76800 for Digi actually means
{
/*
* This call is made by the apps to complete the
- * initilization of the board(s). This routine is
+ * initialization of the board(s). This routine is
* responsible for setting the card to its initial
* state and setting the drivers control fields to the
* sutianle settings for the card in question.
* The hangcheck-timer driver uses the TSC to catch delays that
* jiffies does not notice. A timer is set. When the timer fires, it
* checks whether it was delayed and if that delay exceeds a given
- * margin of error. The hangcheck_tick module paramter takes the timer
+ * margin of error. The hangcheck_tick module parameter takes the timer
* duration in seconds. The hangcheck_margin parameter defines the
* margin of error, in seconds. The defaults are 60 seconds for the
* timer and 180 seconds for the margin of error. IOW, a timer is set
if (!hvcsd)
return -ENODEV;
- /* By this time the vty-server won't be getting any more interrups */
+ /* By this time the vty-server won't be getting any more interrupts */
spin_lock_irqsave(&hvcsd->lock, flags);
if (!in_interrupt()) {
schedule_timeout_interruptible(1); // short nap
} else {
- // we cannot sched/sleep in interrrupt silly
+ // we cannot sched/sleep in interrupt silly
return 0;
}
if (signal_pending(current)) {
// Just polled boards, IRQ = 0 will hit all non-interrupt boards.
// It will NOT poll boards handled by hard interrupts.
- // The issue of queued BH interrups is handled in ip2_interrupt().
+ // The issue of queued BH interrupts is handled in ip2_interrupt().
ip2_polled_interrupt();
PollTimer.expires = POLL_TIMEOUT;
vdata->refcnt = ATOMIC_INIT(1);
vma->vm_private_data = vdata;
- vma->vm_flags |= (VM_IO | VM_RESERVED | VM_PFNMAP);
+ vma->vm_flags |= (VM_IO | VM_RESERVED | VM_PFNMAP | VM_DONTEXPAND);
if (vdata->type == MSPEC_FETCHOP || vdata->type == MSPEC_UNCACHED)
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
vma->vm_ops = &mspec_vm_ops;
* nozomi.c -- HSDPA driver Broadband Wireless Data Card - Globe Trotter
*
* Written by: Ulf Jakobsson,
- * Jan �erfeldt,
+ * Jan Åkerfeldt,
* Stefan Thomasson,
*
* Maintained by: Paul Hardwick (p.hardwick@option.com)
* --------------------------------------------------------------------------
*/
-/*
- * CHANGELOG
- * Version 2.1d
- * 11-November-2007 Jiri Slaby, Frank Seidel
- * - Big rework of multicard support by Jiri
- * - Major cleanups (semaphore to mutex, endianess, no major reservation)
- * - Optimizations
- *
- * Version 2.1c
- * 30-October-2007 Frank Seidel
- * - Completed multicard support
- * - Minor cleanups
- *
- * Version 2.1b
- * 07-August-2007 Frank Seidel
- * - Minor cleanups
- * - theoretical multicard support
- *
- * Version 2.1
- * 03-July-2006 Paul Hardwick
- *
- * - Stability Improvements. Incorporated spinlock wraps patch.
- * - Updated for newer 2.6.14+ kernels (tty_buffer_request_room)
- * - using __devexit macro for tty
- *
- *
- * Version 2.0
- * 08-feb-2006 15:34:10:Ulf
- *
- * -Fixed issue when not waking up line disipine layer, could probably result
- * in better uplink performance for 2.4.
- *
- * -Fixed issue with big endian during initalization, now proper toggle flags
- * are handled between preloader and maincode.
- *
- * -Fixed flow control issue.
- *
- * -Added support for setting DTR.
- *
- * -For 2.4 kernels, removing temporary buffer that's not needed.
- *
- * -Reading CTS only for modem port (only port that supports it).
- *
- * -Return 0 in write_room instead of netative value, it's not handled in
- * upper layer.
- *
- * --------------------------------------------------------------------------
- * Version 1.0
- *
- * First version of driver, only tested with card of type F32_2.
- * Works fine with 2.4 and 2.6 kernels.
- * Driver also support big endian architecture.
- */
-
/* Enable this to have a lot of debug printouts */
#define DEBUG
/* Do we need this settable at runtime? */
static int debug = NOZOMI_DEBUG_LEVEL;
-#define D(lvl, args...) do {if (lvl & debug) NFO(KERN_DEBUG, ##args); } \
- while (0)
+#define D(lvl, args...) do \
+ {if (lvl & debug) NFO(KERN_DEBUG, ##args); } \
+ while (0)
#define D_(lvl, args...) D(lvl, ##args)
/* These printouts are always printed */
/* Big endian */
struct toggles {
- unsigned enabled:5; /*
+ unsigned int enabled:5; /*
* Toggle fields are valid if enabled is 0,
* else A-channels must always be used.
*/
- unsigned diag_dl:1;
- unsigned mdm_dl:1;
- unsigned mdm_ul:1;
+ unsigned int diag_dl:1;
+ unsigned int mdm_dl:1;
+ unsigned int mdm_ul:1;
} __attribute__ ((packed));
/* Configuration table to read at startup of card */
/* This stores all control downlink flags */
struct ctrl_dl {
u8 port;
- unsigned reserved:4;
- unsigned CTS:1;
- unsigned RI:1;
- unsigned DCD:1;
- unsigned DSR:1;
+ unsigned int reserved:4;
+ unsigned int CTS:1;
+ unsigned int RI:1;
+ unsigned int DCD:1;
+ unsigned int DSR:1;
} __attribute__ ((packed));
/* This stores all control uplink flags */
struct ctrl_ul {
u8 port;
- unsigned reserved:6;
- unsigned RTS:1;
- unsigned DTR:1;
+ unsigned int reserved:6;
+ unsigned int RTS:1;
+ unsigned int DTR:1;
} __attribute__ ((packed));
#else
/* This represents the toggle information */
struct toggles {
- unsigned mdm_ul:1;
- unsigned mdm_dl:1;
- unsigned diag_dl:1;
- unsigned enabled:5; /*
+ unsigned int mdm_ul:1;
+ unsigned int mdm_dl:1;
+ unsigned int diag_dl:1;
+ unsigned int enabled:5; /*
* Toggle fields are valid if enabled is 0,
* else A-channels must always be used.
*/
/* This stores all control downlink flags */
struct ctrl_dl {
- unsigned DSR:1;
- unsigned DCD:1;
- unsigned RI:1;
- unsigned CTS:1;
- unsigned reserverd:4;
+ unsigned int DSR:1;
+ unsigned int DCD:1;
+ unsigned int RI:1;
+ unsigned int CTS:1;
+ unsigned int reserverd:4;
u8 port;
} __attribute__ ((packed));
/* This stores all control uplink flags */
struct ctrl_ul {
- unsigned DTR:1;
- unsigned RTS:1;
- unsigned reserved:6;
+ unsigned int DTR:1;
+ unsigned int RTS:1;
+ unsigned int reserved:6;
u8 port;
} __attribute__ ((packed));
#endif
} __attribute__ ((packed));
/* Global variables */
-static struct pci_device_id nozomi_pci_tbl[] = {
+static const struct pci_device_id nozomi_pci_tbl[] __devinitconst = {
{PCI_DEVICE(VENDOR1, DEVICE1)},
{},
};
* -Optimize
* -Rewrite cleaner
*/
-static u32 write_mem32(void __iomem *mem_addr_start, u32 *buf,
+static u32 write_mem32(void __iomem *mem_addr_start, const u32 *buf,
u32 size_bytes)
{
u32 i = 0;
u32 *ptr = (__force u32 *) mem_addr_start;
- u16 *buf16;
+ const u16 *buf16;
if (unlikely(!ptr || !buf))
return 0;
/* shortcut for extremely often used cases */
switch (size_bytes) {
case 2: /* 2 bytes */
- buf16 = (u16 *) buf;
+ buf16 = (const u16 *)buf;
writew(__cpu_to_le16(*buf16), (void __iomem *)ptr);
return 2;
break;
while (i < size_bytes) {
if (size_bytes - i == 2) {
/* 2 bytes */
- buf16 = (u16 *) buf;
+ buf16 = (const u16 *)buf;
writew(__cpu_to_le16(*buf16), (void __iomem *)ptr);
i += 2;
} else {
dc->config_table.ul_ctrl_len);
}
#else
-static __inline__ void dump_table(const struct nozomi *dc) { }
+static inline void dump_table(const struct nozomi *dc) { }
#endif
/*
/* Enable uplink interrupts */
static void enable_transmit_ul(enum port_type port, struct nozomi *dc)
{
- u16 mask[NOZOMI_MAX_PORTS] = \
- {MDM_UL, DIAG_UL, APP1_UL, APP2_UL, CTRL_UL};
+ static const u16 mask[] = {MDM_UL, DIAG_UL, APP1_UL, APP2_UL, CTRL_UL};
if (port < NOZOMI_MAX_PORTS) {
dc->last_ier |= mask[port];
/* Disable uplink interrupts */
static void disable_transmit_ul(enum port_type port, struct nozomi *dc)
{
- u16 mask[NOZOMI_MAX_PORTS] = \
- {~MDM_UL, ~DIAG_UL, ~APP1_UL, ~APP2_UL, ~CTRL_UL};
+ static const u16 mask[] =
+ {~MDM_UL, ~DIAG_UL, ~APP1_UL, ~APP2_UL, ~CTRL_UL};
if (port < NOZOMI_MAX_PORTS) {
dc->last_ier &= mask[port];
/* Enable downlink interrupts */
static void enable_transmit_dl(enum port_type port, struct nozomi *dc)
{
- u16 mask[NOZOMI_MAX_PORTS] = \
- {MDM_DL, DIAG_DL, APP1_DL, APP2_DL, CTRL_DL};
+ static const u16 mask[] = {MDM_DL, DIAG_DL, APP1_DL, APP2_DL, CTRL_DL};
if (port < NOZOMI_MAX_PORTS) {
dc->last_ier |= mask[port];
/* Disable downlink interrupts */
static void disable_transmit_dl(enum port_type port, struct nozomi *dc)
{
- u16 mask[NOZOMI_MAX_PORTS] = \
- {~MDM_DL, ~DIAG_DL, ~APP1_DL, ~APP2_DL, ~CTRL_DL};
+ static const u16 mask[] =
+ {~MDM_DL, ~DIAG_DL, ~APP1_DL, ~APP2_DL, ~CTRL_DL};
if (port < NOZOMI_MAX_PORTS) {
dc->last_ier &= mask[port];
* Return 1 - send buffer to card and ack.
* Return 0 - don't ack, don't send buffer to card.
*/
-static int send_data(enum port_type index, struct nozomi *dc)
+static int send_data(enum port_type index, const struct nozomi *dc)
{
u32 size = 0;
- struct port *port = &dc->port[index];
- u8 toggle = port->toggle_ul;
+ const struct port *port = &dc->port[index];
+ const u8 toggle = port->toggle_ul;
void __iomem *addr = port->ul_addr[toggle];
- u32 ul_size = port->ul_size[toggle];
+ const u32 ul_size = port->ul_size[toggle];
struct tty_struct *tty = port->tty;
/* Get data from tty and place in buf for now */
}
/*
- * Handle donlink data, ports that are handled are modem and diagnostics
+ * Handle downlink data, ports that are handled are modem and diagnostics
* Return 1 - ok
* Return 0 - toggle fields are out of sync
*/
static ssize_t card_type_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct nozomi *dc = pci_get_drvdata(to_pci_dev(dev));
+ const struct nozomi *dc = pci_get_drvdata(to_pci_dev(dev));
return sprintf(buf, "%d\n", dc->card_type);
}
-static DEVICE_ATTR(card_type, 0444, card_type_show, NULL);
+static DEVICE_ATTR(card_type, S_IRUGO, card_type_show, NULL);
static ssize_t open_ttys_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct nozomi *dc = pci_get_drvdata(to_pci_dev(dev));
+ const struct nozomi *dc = pci_get_drvdata(to_pci_dev(dev));
return sprintf(buf, "%u\n", dc->open_ttys);
}
-static DEVICE_ATTR(open_ttys, 0444, open_ttys_show, NULL);
+static DEVICE_ATTR(open_ttys, S_IRUGO, open_ttys_show, NULL);
static void make_sysfs_files(struct nozomi *dc)
{
{
struct port *port = tty->driver_data;
int room = 0;
- struct nozomi *dc = get_dc_by_tty(tty);
+ const struct nozomi *dc = get_dc_by_tty(tty);
if (!dc || !port)
return 0;
/* Gets io control parameters */
static int ntty_tiocmget(struct tty_struct *tty, struct file *file)
{
- struct port *port = tty->driver_data;
- struct ctrl_dl *ctrl_dl = &port->ctrl_dl;
- struct ctrl_ul *ctrl_ul = &port->ctrl_ul;
+ const struct port *port = tty->driver_data;
+ const struct ctrl_dl *ctrl_dl = &port->ctrl_dl;
+ const struct ctrl_ul *ctrl_ul = &port->ctrl_ul;
return (ctrl_ul->RTS ? TIOCM_RTS : 0) |
(ctrl_ul->DTR ? TIOCM_DTR : 0) |
static int ntty_cflags_changed(struct port *port, unsigned long flags,
struct async_icount *cprev)
{
- struct async_icount cnow = port->tty_icount;
+ const struct async_icount cnow = port->tty_icount;
int ret;
ret = ((flags & TIOCM_RNG) && (cnow.rng != cprev->rng)) ||
static int ntty_ioctl_tiocgicount(struct port *port, void __user *argp)
{
- struct async_icount cnow = port->tty_icount;
+ const struct async_icount cnow = port->tty_icount;
struct serial_icounter_struct icount;
icount.cts = cnow.cts;
/* just to discard single character writes */
static void ntty_put_char(struct tty_struct *tty, unsigned char c)
{
- /* FIXME !!! */
+ /*
+ * card does not react correct when we write single chars
+ * to the card, so we discard them
+ */
DBG2("PUT CHAR Function: %c", c);
}
return rval;
}
-static struct tty_operations tty_ops = {
+static const struct tty_operations tty_ops = {
.ioctl = ntty_ioctl,
.open = ntty_open,
.close = ntty_close,
/* mgsl_isr_misc()
*
- * Service a miscellaneos interrupt source.
+ * Service a miscellaneous interrupt source.
*
* Arguments: info pointer to device extension (instance data)
* Return Value: None
if (tosh_probe())
return -ENODEV;
- printk(KERN_INFO "Toshiba System Managment Mode driver v" TOSH_VERSION "\n");
+ printk(KERN_INFO "Toshiba System Management Mode driver v" TOSH_VERSION "\n");
/* set the port to use for Fn status if not specified as a parameter */
if (tosh_fn==0x00)
/* Find the input queue. */
/* FIXME: This is why we want to wean off hvc: we do nothing
* when input comes in. */
- in_vq = vdev->config->find_vq(vdev, NULL);
+ in_vq = vdev->config->find_vq(vdev, 0, NULL);
if (IS_ERR(in_vq)) {
err = PTR_ERR(in_vq);
goto free;
}
- out_vq = vdev->config->find_vq(vdev, NULL);
+ out_vq = vdev->config->find_vq(vdev, 1, NULL);
if (IS_ERR(out_vq)) {
err = PTR_ERR(out_vq);
goto free_in_vq;
#include <linux/dio.h>
- /**
- * dio_match_device - Tell if a DIO device structure has a matching
- * DIO device id structure
- * @ids: array of DIO device id structures to search in
- * @dev: the DIO device structure to match against
- *
- * Used by a driver to check whether a DIO device present in the
- * system is in its list of supported devices. Returns the matching
- * dio_device_id structure or %NULL if there is no match.
- */
+/**
+ * dio_match_device - Tell if a DIO device structure has a matching DIO device id structure
+ * @ids: array of DIO device id structures to search in
+ * @d: the DIO device structure to match against
+ *
+ * Used by a driver to check whether a DIO device present in the
+ * system is in its list of supported devices. Returns the matching
+ * dio_device_id structure or %NULL if there is no match.
+ */
const struct dio_device_id *
dio_match_device(const struct dio_device_id *ids,
}
- /**
- * dio_register_driver - register a new DIO driver
- * @drv: the driver structure to register
- *
- * Adds the driver structure to the list of registered drivers
- * Returns zero or a negative error value.
- */
+/**
+ * dio_register_driver - register a new DIO driver
+ * @drv: the driver structure to register
+ *
+ * Adds the driver structure to the list of registered drivers
+ * Returns zero or a negative error value.
+ */
int dio_register_driver(struct dio_driver *drv)
{
}
- /**
- * dio_unregister_driver - unregister a DIO driver
- * @drv: the driver structure to unregister
- *
- * Deletes the driver structure from the list of registered DIO drivers,
- * gives it a chance to clean up by calling its remove() function for
- * each device it was responsible for, and marks those devices as
- * driverless.
- */
+/**
+ * dio_unregister_driver - unregister a DIO driver
+ * @drv: the driver structure to unregister
+ *
+ * Deletes the driver structure from the list of registered DIO drivers,
+ * gives it a chance to clean up by calling its remove() function for
+ * each device it was responsible for, and marks those devices as
+ * driverless.
+ */
void dio_unregister_driver(struct dio_driver *drv)
{
}
- /**
- * dio_bus_match - Tell if a DIO device structure has a matching DIO
- * device id structure
- * @ids: array of DIO device id structures to search in
- * @dev: the DIO device structure to match against
- *
- * Used by a driver to check whether a DIO device present in the
- * system is in its list of supported devices. Returns the matching
- * dio_device_id structure or %NULL if there is no match.
- */
+/**
+ * dio_bus_match - Tell if a DIO device structure has a matching DIO device id structure
+ * @dev: the DIO device structure to match against
+ * @drv: the &device_driver that points to the array of DIO device id structures to search
+ *
+ * Used by a driver to check whether a DIO device present in the
+ * system is in its list of supported devices. Returns the matching
+ * dio_device_id structure or %NULL if there is no match.
+ */
static int dio_bus_match(struct device *dev, struct device_driver *drv)
{
*
* Last action on the pci control structure.
*
- * call the remove sysfs informaton, which will unregister
+ * call the remove sysfs information, which will unregister
* this control struct's kobj. When that kobj's ref count
* goes to zero, its release function will be call and then
* kfree() the memory.
u16 b1_ambpresent0; /* Branch 1, Channel 8 */
u16 b1_ambpresent1; /* Branch 1, Channel 1 */
- /* DIMM infomation matrix, allocating architecture maximums */
+ /* DIMM information matrix, allocating architecture maximums */
struct i5000_dimm_info dimm_info[MAX_CSROWS][MAX_CHANNELS];
/* Actual values for this controller */
*
* This code takes information provided by BIOS EDD calls
* fn41 - Check Extensions Present and
- * fn48 - Get Device Parametes with EDD extensions
+ * fn48 - Get Device Parameters with EDD extensions
* made in setup.S, copied to safe structures in setup.c,
* and presents it in sysfs.
*
memory, though.
config BLK_DEV_IDETAPE
- tristate "Include IDE/ATAPI TAPE support (EXPERIMENTAL)"
- depends on EXPERIMENTAL
+ tristate "Include IDE/ATAPI TAPE support"
help
If you have an IDE tape drive using the ATAPI protocol, say Y.
ATAPI is a newer protocol used by IDE tape and CD-ROM drives,
bastide_register(unsigned int base, unsigned int aux, int irq,
ide_hwif_t **hwif)
{
+ ide_hwif_t *hwif;
hw_regs_t hw;
int i;
+ u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
memset(&hw, 0, sizeof(hw));
hw.io_ports[IDE_CONTROL_OFFSET] = aux + (6 * 0x20);
hw.irq = irq;
- ide_register_hw(&hw, NULL, hwif);
+ hwif = ide_deprecated_find_port(hw.io_ports[IDE_DATA_OFFSET]);
+ if (hwif == NULL)
+ goto out;
+ i = hwif->index;
+
+ if (hwif->present)
+ ide_unregister(i, 0, 0);
+ else if (!hwif->hold)
+ ide_init_port_data(hwif, i);
+
+ ide_init_port_hw(hwif, &hw);
+ hwif->quirkproc = NULL;
+
+ idx[0] = i;
+
+ ide_device_add(idx, NULL);
+out:
return 0;
}
static void icside_dma_init(ide_hwif_t *hwif)
{
- hwif->mwdma_mask = 7; /* MW0..2 */
- hwif->swdma_mask = 7; /* SW0..2 */
-
hwif->dmatable_cpu = NULL;
hwif->dmatable_dma = 0;
hwif->set_dma_mode = icside_set_dma_mode;
idx[0] = hwif->index;
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
return 0;
}
+static const struct ide_port_info icside_v6_port_info __initdata = {
+ .host_flags = IDE_HFLAG_SERIALIZE |
+ IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
+ IDE_HFLAG_NO_AUTOTUNE,
+ .mwdma_mask = ATA_MWDMA2,
+ .swdma_mask = ATA_SWDMA2,
+};
+
static int __init
icside_register_v6(struct icside_state *state, struct expansion_card *ec)
{
unsigned int sel = 0;
int ret;
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+ struct ide_port_info d = icside_v6_port_info;
ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
if (!ioc_base) {
state->hwif[1] = mate;
hwif->maskproc = icside_maskproc;
- hwif->channel = 0;
hwif->hwif_data = state;
- hwif->mate = mate;
- hwif->serialized = 1;
hwif->config_data = (unsigned long)ioc_base;
hwif->select_data = sel;
mate->maskproc = icside_maskproc;
- mate->channel = 1;
mate->hwif_data = state;
- mate->mate = hwif;
- mate->serialized = 1;
mate->config_data = (unsigned long)ioc_base;
mate->select_data = sel | 1;
if (ec->dma != NO_DMA && !request_dma(ec->dma, hwif->name)) {
icside_dma_init(hwif);
icside_dma_init(mate);
- }
+ } else
+ d.mwdma_mask = d.swdma_mask = 0;
idx[0] = hwif->index;
idx[1] = mate->index;
- ide_device_add(idx);
+ ide_device_add(idx, &d);
return 0;
ide_init_port_hw(hwif, &hw);
idx[0] = hwif->index;
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
}
return 0;
idx[0] = hwif->index;
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
ecard_set_drvdata(ec, hwif);
goto out;
ecard_set_drvdata(ec, NULL);
- ide_unregister(hwif->index);
+ ide_unregister(hwif->index, 0, 0);
ecard_release_resources(ec);
}
cris_ide_set_speed(TYPE_DMA, 0, strobe, hold);
}
+static const struct ide_port_info cris_port_info __initdata = {
+ .chipset = ide_etrax100,
+ .host_flags = IDE_HFLAG_NO_ATAPI_DMA |
+ IDE_HFLAG_NO_DMA, /* no SFF-style DMA */
+ .pio_mask = ATA_PIO4,
+ .udma_mask = cris_ultra_mask,
+ .mwdma_mask = ATA_MWDMA2,
+};
+
static int __init init_e100_ide(void)
{
hw_regs_t hw;
ide_init_port_data(hwif, hwif->index);
ide_init_port_hw(hwif, &hw);
hwif->mmio = 1;
- hwif->chipset = ide_etrax100;
hwif->set_pio_mode = &cris_set_pio_mode;
hwif->set_dma_mode = &cris_set_dma_mode;
hwif->ata_input_data = &cris_ide_input_data;
hwif->INB = &cris_ide_inb;
hwif->INW = &cris_ide_inw;
hwif->cbl = ATA_CBL_PATA40;
- hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
- hwif->pio_mask = ATA_PIO4,
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
- hwif->ultra_mask = cris_ultra_mask;
- hwif->mwdma_mask = 0x07; /* Multiword DMA 0-2 */
idx[h] = hwif->index;
}
cris_ide_set_speed(TYPE_DMA, 0, ATA_DMA2_STROBE, ATA_DMA2_HOLD);
cris_ide_set_speed(TYPE_UDMA, ATA_UDMA2_CYC, ATA_UDMA2_DVS, 0);
- ide_device_add(idx);
+ ide_device_add(idx, &cris_port_info);
return 0;
}
static void cris_dma_exec_cmd(ide_drive_t *drive, u8 command)
{
- /* set the irq handler which will finish the request when DMA is done */
- ide_set_handler(drive, &cris_dma_intr, WAIT_CMD, NULL);
-
- /* issue cmd to drive */
- cris_ide_outb(command, IDE_COMMAND_REG);
+ ide_execute_command(drive, command, &cris_dma_intr, WAIT_CMD, NULL);
}
static void cris_dma_start(ide_drive_t *drive)
idx[0] = index;
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
return 0;
};
struct ide_acpi_drive_link {
- ide_drive_t *drive;
acpi_handle obj_handle;
u8 idbuff[512];
};
port = hwif->channel ? drive->dn - 2: drive->dn;
- if (!drive->acpidata) {
- if (port == 0) {
- drive->acpidata = &hwif->acpidata->master;
- hwif->acpidata->master.drive = drive;
- } else {
- drive->acpidata = &hwif->acpidata->slave;
- hwif->acpidata->slave.drive = drive;
- }
- }
-
DEBPRINT("ENTER: %s at %s, port#: %d, hard_port#: %d\n",
hwif->name, dev->bus_id, port, hwif->channel);
return ret;
}
-EXPORT_SYMBOL_GPL(ide_acpi_exec_tfs);
/**
* ide_acpi_get_timing - get the channel (controller) timings
kfree(output.pointer);
}
-EXPORT_SYMBOL_GPL(ide_acpi_get_timing);
/**
* ide_acpi_push_timing - set the channel (controller) timings
}
DEBPRINT("_STM status: %d\n", status);
}
-EXPORT_SYMBOL_GPL(ide_acpi_push_timing);
/**
* ide_acpi_set_state - set the channel power state
*/
void ide_acpi_init(ide_hwif_t *hwif)
{
- int unit;
- int err;
- struct ide_acpi_drive_link *master;
- struct ide_acpi_drive_link *slave;
-
ide_acpi_blacklist();
hwif->acpidata = kzalloc(sizeof(struct ide_acpi_hwif_link), GFP_KERNEL);
DEBPRINT("no ACPI object for %s found\n", hwif->name);
kfree(hwif->acpidata);
hwif->acpidata = NULL;
- return;
}
+}
+
+void ide_acpi_port_init_devices(ide_hwif_t *hwif)
+{
+ ide_drive_t *drive;
+ int i, err;
+
+ if (hwif->acpidata == NULL)
+ return;
/*
* The ACPI spec mandates that we send information
* for both drives, regardless whether they are connected
* or not.
*/
- hwif->acpidata->master.drive = &hwif->drives[0];
hwif->drives[0].acpidata = &hwif->acpidata->master;
- master = &hwif->acpidata->master;
-
- hwif->acpidata->slave.drive = &hwif->drives[1];
hwif->drives[1].acpidata = &hwif->acpidata->slave;
- slave = &hwif->acpidata->slave;
-
/*
* Send IDENTIFY for each drive
*/
- if (master->drive->present) {
- err = taskfile_lib_get_identify(master->drive, master->idbuff);
- if (err) {
- DEBPRINT("identify device %s failed (%d)\n",
- master->drive->name, err);
- }
- }
+ for (i = 0; i < MAX_DRIVES; i++) {
+ drive = &hwif->drives[i];
+
+ if (!drive->present)
+ continue;
- if (slave->drive->present) {
- err = taskfile_lib_get_identify(slave->drive, slave->idbuff);
- if (err) {
+ err = taskfile_lib_get_identify(drive, drive->acpidata->idbuff);
+ if (err)
DEBPRINT("identify device %s failed (%d)\n",
- slave->drive->name, err);
- }
+ drive->name, err);
}
if (ide_noacpionboot) {
ide_acpi_get_timing(hwif);
ide_acpi_push_timing(hwif);
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t *drive = &hwif->drives[unit];
+ for (i = 0; i < MAX_DRIVES; i++) {
+ drive = &hwif->drives[i];
- if (drive->present) {
+ if (drive->present)
/* Execute ACPI startup code */
ide_acpi_exec_tfs(drive);
- }
}
}
-EXPORT_SYMBOL_GPL(ide_acpi_init);
* Block read functions.
*/
-typedef void (xfer_func_t)(ide_drive_t *, void *, u32);
-
static void ide_cd_pad_transfer(ide_drive_t *drive, xfer_func_t *xf, int len)
{
while (len > 0) {
return 0;
}
+void ide_check_dma_crc(ide_drive_t *drive)
+{
+ u8 mode;
+
+ ide_dma_off_quietly(drive);
+ drive->crc_count = 0;
+ mode = drive->current_speed;
+ /*
+ * Don't try non Ultra-DMA modes without iCRC's. Force the
+ * device to PIO and make the user enable SWDMA/MWDMA modes.
+ */
+ if (mode > XFER_UDMA_0 && mode <= XFER_UDMA_7)
+ mode--;
+ else
+ mode = XFER_PIO_4;
+ ide_set_xfer_rate(drive, mode);
+ if (drive->current_speed >= XFER_SW_DMA_0)
+ ide_dma_on(drive);
+}
+
#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
void ide_dma_lost_irq (ide_drive_t *drive)
{
* Copyright (C) 1996-1999 Gadi Oxman <gadio@netvision.net.il>
* Copyright (C) 2000-2002 Paul Bristow <paul@paulbristow.net>
* Copyright (C) 2005 Bartlomiej Zolnierkiewicz
- */
-
-/*
- * The driver currently doesn't have any fancy features, just the bare
- * minimum read/write support.
*
* This driver supports the following IDE floppy drives:
*
* Documentation/ide/ChangeLog.ide-floppy.1996-2002
*/
-#define IDEFLOPPY_VERSION "0.99.newide"
+#define IDEFLOPPY_VERSION "1.00"
#include <linux/module.h>
#include <linux/types.h>
#include <scsi/scsi_ioctl.h>
#include <asm/byteorder.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
+#include <linux/irq.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
#include <asm/unaligned.h>
-/*
- * The following are used to debug the driver.
- */
+/* define to see debug info */
#define IDEFLOPPY_DEBUG_LOG 0
-#define IDEFLOPPY_DEBUG_INFO 0
-#define IDEFLOPPY_DEBUG_BUGS 1
/* #define IDEFLOPPY_DEBUG(fmt, args...) printk(KERN_INFO fmt, ## args) */
-#define IDEFLOPPY_DEBUG( fmt, args... )
+#define IDEFLOPPY_DEBUG(fmt, args...)
#if IDEFLOPPY_DEBUG_LOG
-#define debug_log printk
+#define debug_log(fmt, args...) \
+ printk(KERN_INFO "ide-floppy: " fmt, ## args)
#else
-#define debug_log(fmt, args... ) do {} while(0)
+#define debug_log(fmt, args...) do {} while (0)
#endif
-/*
- * Some drives require a longer irq timeout.
- */
+/* Some drives require a longer irq timeout. */
#define IDEFLOPPY_WAIT_CMD (5 * WAIT_CMD)
/*
- * After each failed packet command we issue a request sense command
- * and retry the packet command IDEFLOPPY_MAX_PC_RETRIES times.
+ * After each failed packet command we issue a request sense command and retry
+ * the packet command IDEFLOPPY_MAX_PC_RETRIES times.
*/
#define IDEFLOPPY_MAX_PC_RETRIES 3
/*
- * With each packet command, we allocate a buffer of
- * IDEFLOPPY_PC_BUFFER_SIZE bytes.
+ * With each packet command, we allocate a buffer of IDEFLOPPY_PC_BUFFER_SIZE
+ * bytes.
*/
#define IDEFLOPPY_PC_BUFFER_SIZE 256
/*
- * In various places in the driver, we need to allocate storage
- * for packet commands and requests, which will remain valid while
- * we leave the driver to wait for an interrupt or a timeout event.
+ * In various places in the driver, we need to allocate storage for packet
+ * commands and requests, which will remain valid while we leave the driver to
+ * wait for an interrupt or a timeout event.
*/
#define IDEFLOPPY_PC_STACK (10 + IDEFLOPPY_MAX_PC_RETRIES)
-/*
- * Our view of a packet command.
- */
typedef struct idefloppy_packet_command_s {
u8 c[12]; /* Actual packet bytes */
- int retries; /* On each retry, we increment retries */
+ int retries; /* On each retry, we increment
+ retries */
int error; /* Error code */
int request_transfer; /* Bytes to transfer */
int actually_transferred; /* Bytes actually transferred */
int buffer_size; /* Size of our data buffer */
- int b_count; /* Missing/Available data on the current buffer */
+ int b_count; /* Missing/Available data on
+ the current buffer */
struct request *rq; /* The corresponding request */
u8 *buffer; /* Data buffer */
- u8 *current_position; /* Pointer into the above buffer */
- void (*callback) (ide_drive_t *); /* Called when this packet command is completed */
+ u8 *current_position; /* Pointer into above buffer */
+ void (*callback) (ide_drive_t *); /* Called when this packet
+ command is completed */
u8 pc_buffer[IDEFLOPPY_PC_BUFFER_SIZE]; /* Temporary buffer */
- unsigned long flags; /* Status/Action bit flags: long for set_bit */
+ unsigned long flags; /* Status/Action bit flags: long
+ for set_bit */
} idefloppy_pc_t;
-/*
- * Packet command flag bits.
- */
-#define PC_ABORT 0 /* Set when an error is considered normal - We won't retry */
-#define PC_DMA_RECOMMENDED 2 /* 1 when we prefer to use DMA if possible */
-#define PC_DMA_IN_PROGRESS 3 /* 1 while DMA in progress */
-#define PC_DMA_ERROR 4 /* 1 when encountered problem during DMA */
-#define PC_WRITING 5 /* Data direction */
-
-#define PC_SUPPRESS_ERROR 6 /* Suppress error reporting */
-
-/*
- * Removable Block Access Capabilities Page
- */
-typedef struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned page_code :6; /* Page code - Should be 0x1b */
- unsigned reserved1_6 :1; /* Reserved */
- unsigned ps :1; /* Should be 0 */
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned ps :1; /* Should be 0 */
- unsigned reserved1_6 :1; /* Reserved */
- unsigned page_code :6; /* Page code - Should be 0x1b */
-#else
-#error "Bitfield endianness not defined! Check your byteorder.h"
-#endif
- u8 page_length; /* Page Length - Should be 0xa */
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned reserved2 :6;
- unsigned srfp :1; /* Supports reporting progress of format */
- unsigned sflp :1; /* System floppy type device */
- unsigned tlun :3; /* Total logical units supported by the device */
- unsigned reserved3 :3;
- unsigned sml :1; /* Single / Multiple lun supported */
- unsigned ncd :1; /* Non cd optical device */
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned sflp :1; /* System floppy type device */
- unsigned srfp :1; /* Supports reporting progress of format */
- unsigned reserved2 :6;
- unsigned ncd :1; /* Non cd optical device */
- unsigned sml :1; /* Single / Multiple lun supported */
- unsigned reserved3 :3;
- unsigned tlun :3; /* Total logical units supported by the device */
-#else
-#error "Bitfield endianness not defined! Check your byteorder.h"
-#endif
- u8 reserved[8];
-} idefloppy_capabilities_page_t;
-
-/*
- * Flexible disk page.
- */
-typedef struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned page_code :6; /* Page code - Should be 0x5 */
- unsigned reserved1_6 :1; /* Reserved */
- unsigned ps :1; /* The device is capable of saving the page */
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned ps :1; /* The device is capable of saving the page */
- unsigned reserved1_6 :1; /* Reserved */
- unsigned page_code :6; /* Page code - Should be 0x5 */
-#else
-#error "Bitfield endianness not defined! Check your byteorder.h"
-#endif
- u8 page_length; /* Page Length - Should be 0x1e */
- u16 transfer_rate; /* In kilobits per second */
- u8 heads, sectors; /* Number of heads, Number of sectors per track */
- u16 sector_size; /* Byes per sector */
- u16 cyls; /* Number of cylinders */
- u8 reserved10[10];
- u8 motor_delay; /* Motor off delay */
- u8 reserved21[7];
- u16 rpm; /* Rotations per minute */
- u8 reserved30[2];
-} idefloppy_flexible_disk_page_t;
-
-/*
- * Format capacity
- */
-typedef struct {
- u8 reserved[3];
- u8 length; /* Length of the following descriptors in bytes */
-} idefloppy_capacity_header_t;
-
-typedef struct {
- u32 blocks; /* Number of blocks */
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned dc :2; /* Descriptor Code */
- unsigned reserved :6;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned reserved :6;
- unsigned dc :2; /* Descriptor Code */
-#else
-#error "Bitfield endianness not defined! Check your byteorder.h"
-#endif
- u8 length_msb; /* Block Length (MSB)*/
- u16 length; /* Block Length */
-} idefloppy_capacity_descriptor_t;
+/* Packet command flag bits. */
+enum {
+ /* 1 when we prefer to use DMA if possible */
+ PC_FLAG_DMA_RECOMMENDED = (1 << 0),
+ /* 1 while DMA in progress */
+ PC_FLAG_DMA_IN_PROGRESS = (1 << 1),
+ /* 1 when encountered problem during DMA */
+ PC_FLAG_DMA_ERROR = (1 << 2),
+ /* Data direction */
+ PC_FLAG_WRITING = (1 << 3),
+ /* Suppress error reporting */
+ PC_FLAG_SUPPRESS_ERROR = (1 << 4),
+};
+/* format capacities descriptor codes */
#define CAPACITY_INVALID 0x00
#define CAPACITY_UNFORMATTED 0x01
#define CAPACITY_CURRENT 0x02
#define CAPACITY_NO_CARTRIDGE 0x03
/*
- * Most of our global data which we need to save even as we leave the
- * driver due to an interrupt or a timer event is stored in a variable
- * of type idefloppy_floppy_t, defined below.
+ * Most of our global data which we need to save even as we leave the driver
+ * due to an interrupt or a timer event is stored in a variable of type
+ * idefloppy_floppy_t, defined below.
*/
typedef struct ide_floppy_obj {
ide_drive_t *drive;
/* We implement a circular array */
int rq_stack_index;
- /*
- * Last error information
- */
+ /* Last error information */
u8 sense_key, asc, ascq;
/* delay this long before sending packet command */
u8 ticks;
int progress_indication;
- /*
- * Device information
- */
+ /* Device information */
/* Current format */
int blocks, block_size, bs_factor;
- /* Last format capacity */
- idefloppy_capacity_descriptor_t capacity;
+ /* Last format capacity descriptor */
+ u8 cap_desc[8];
/* Copy of the flexible disk page */
- idefloppy_flexible_disk_page_t flexible_disk_page;
+ u8 flexible_disk_page[32];
/* Write protect */
int wp;
/* Supports format progress report */
#define IDEFLOPPY_TICKS_DELAY HZ/20 /* default delay for ZIP 100 (50ms) */
-/*
- * Floppy flag bits values.
- */
-#define IDEFLOPPY_DRQ_INTERRUPT 0 /* DRQ interrupt device */
-#define IDEFLOPPY_MEDIA_CHANGED 1 /* Media may have changed */
-#define IDEFLOPPY_USE_READ12 2 /* Use READ12/WRITE12 or READ10/WRITE10 */
-#define IDEFLOPPY_FORMAT_IN_PROGRESS 3 /* Format in progress */
-#define IDEFLOPPY_CLIK_DRIVE 4 /* Avoid commands not supported in Clik drive */
-#define IDEFLOPPY_ZIP_DRIVE 5 /* Requires BH algorithm for packets */
-
-/*
- * ATAPI floppy drive packet commands
- */
-#define IDEFLOPPY_FORMAT_UNIT_CMD 0x04
-#define IDEFLOPPY_INQUIRY_CMD 0x12
-#define IDEFLOPPY_MODE_SELECT_CMD 0x55
-#define IDEFLOPPY_MODE_SENSE_CMD 0x5a
-#define IDEFLOPPY_READ10_CMD 0x28
-#define IDEFLOPPY_READ12_CMD 0xa8
-#define IDEFLOPPY_READ_CAPACITY_CMD 0x23
-#define IDEFLOPPY_REQUEST_SENSE_CMD 0x03
-#define IDEFLOPPY_PREVENT_REMOVAL_CMD 0x1e
-#define IDEFLOPPY_SEEK_CMD 0x2b
-#define IDEFLOPPY_START_STOP_CMD 0x1b
-#define IDEFLOPPY_TEST_UNIT_READY_CMD 0x00
-#define IDEFLOPPY_VERIFY_CMD 0x2f
-#define IDEFLOPPY_WRITE10_CMD 0x2a
-#define IDEFLOPPY_WRITE12_CMD 0xaa
-#define IDEFLOPPY_WRITE_VERIFY_CMD 0x2e
+/* Floppy flag bits values. */
+enum {
+ /* DRQ interrupt device */
+ IDEFLOPPY_FLAG_DRQ_INTERRUPT = (1 << 0),
+ /* Media may have changed */
+ IDEFLOPPY_FLAG_MEDIA_CHANGED = (1 << 1),
+ /* Format in progress */
+ IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS = (1 << 2),
+ /* Avoid commands not supported in Clik drive */
+ IDEFLOPPY_FLAG_CLIK_DRIVE = (1 << 3),
+ /* Requires BH algorithm for packets */
+ IDEFLOPPY_FLAG_ZIP_DRIVE = (1 << 4),
+};
-/*
- * Defines for the mode sense command
- */
+/* Defines for the MODE SENSE command */
#define MODE_SENSE_CURRENT 0x00
#define MODE_SENSE_CHANGEABLE 0x01
-#define MODE_SENSE_DEFAULT 0x02
+#define MODE_SENSE_DEFAULT 0x02
#define MODE_SENSE_SAVED 0x03
-/*
- * IOCTLs used in low-level formatting.
- */
-
+/* IOCTLs used in low-level formatting. */
#define IDEFLOPPY_IOCTL_FORMAT_SUPPORTED 0x4600
#define IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY 0x4601
#define IDEFLOPPY_IOCTL_FORMAT_START 0x4602
#define IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS 0x4603
-/*
- * Error codes which are returned in rq->errors to the higher part
- * of the driver.
- */
+/* Error code returned in rq->errors to the higher part of the driver. */
#define IDEFLOPPY_ERROR_GENERAL 101
/*
- * The following is used to format the general configuration word of
- * the ATAPI IDENTIFY DEVICE command.
+ * The following is used to format the general configuration word of the
+ * ATAPI IDENTIFY DEVICE command.
*/
-struct idefloppy_id_gcw {
+struct idefloppy_id_gcw {
#if defined(__LITTLE_ENDIAN_BITFIELD)
unsigned packet_size :2; /* Packet Size */
unsigned reserved234 :3; /* Reserved */
};
/*
- * INQUIRY packet command - Data Format
- */
-typedef struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned device_type :5; /* Peripheral Device Type */
- unsigned reserved0_765 :3; /* Peripheral Qualifier - Reserved */
- unsigned reserved1_6t0 :7; /* Reserved */
- unsigned rmb :1; /* Removable Medium Bit */
- unsigned ansi_version :3; /* ANSI Version */
- unsigned ecma_version :3; /* ECMA Version */
- unsigned iso_version :2; /* ISO Version */
- unsigned response_format :4; /* Response Data Format */
- unsigned reserved3_45 :2; /* Reserved */
- unsigned reserved3_6 :1; /* TrmIOP - Reserved */
- unsigned reserved3_7 :1; /* AENC - Reserved */
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned reserved0_765 :3; /* Peripheral Qualifier - Reserved */
- unsigned device_type :5; /* Peripheral Device Type */
- unsigned rmb :1; /* Removable Medium Bit */
- unsigned reserved1_6t0 :7; /* Reserved */
- unsigned iso_version :2; /* ISO Version */
- unsigned ecma_version :3; /* ECMA Version */
- unsigned ansi_version :3; /* ANSI Version */
- unsigned reserved3_7 :1; /* AENC - Reserved */
- unsigned reserved3_6 :1; /* TrmIOP - Reserved */
- unsigned reserved3_45 :2; /* Reserved */
- unsigned response_format :4; /* Response Data Format */
-#else
-#error "Bitfield endianness not defined! Check your byteorder.h"
-#endif
- u8 additional_length; /* Additional Length (total_length-4) */
- u8 rsv5, rsv6, rsv7; /* Reserved */
- u8 vendor_id[8]; /* Vendor Identification */
- u8 product_id[16]; /* Product Identification */
- u8 revision_level[4]; /* Revision Level */
- u8 vendor_specific[20]; /* Vendor Specific - Optional */
- u8 reserved56t95[40]; /* Reserved - Optional */
- /* Additional information may be returned */
-} idefloppy_inquiry_result_t;
-
-/*
- * REQUEST SENSE packet command result - Data Format.
- */
-typedef struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned error_code :7; /* Current error (0x70) */
- unsigned valid :1; /* The information field conforms to SFF-8070i */
- u8 reserved1 :8; /* Reserved */
- unsigned sense_key :4; /* Sense Key */
- unsigned reserved2_4 :1; /* Reserved */
- unsigned ili :1; /* Incorrect Length Indicator */
- unsigned reserved2_67 :2;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned valid :1; /* The information field conforms to SFF-8070i */
- unsigned error_code :7; /* Current error (0x70) */
- u8 reserved1 :8; /* Reserved */
- unsigned reserved2_67 :2;
- unsigned ili :1; /* Incorrect Length Indicator */
- unsigned reserved2_4 :1; /* Reserved */
- unsigned sense_key :4; /* Sense Key */
-#else
-#error "Bitfield endianness not defined! Check your byteorder.h"
-#endif
- u32 information __attribute__ ((packed));
- u8 asl; /* Additional sense length (n-7) */
- u32 command_specific; /* Additional command specific information */
- u8 asc; /* Additional Sense Code */
- u8 ascq; /* Additional Sense Code Qualifier */
- u8 replaceable_unit_code; /* Field Replaceable Unit Code */
- u8 sksv[3];
- u8 pad[2]; /* Padding to 20 bytes */
-} idefloppy_request_sense_result_t;
-
-/*
- * Pages of the SELECT SENSE / MODE SENSE packet commands.
+ * Pages of the SELECT SENSE / MODE SENSE packet commands.
+ * See SFF-8070i spec.
*/
#define IDEFLOPPY_CAPABILITIES_PAGE 0x1b
#define IDEFLOPPY_FLEXIBLE_DISK_PAGE 0x05
-/*
- * Mode Parameter Header for the MODE SENSE packet command
- */
-typedef struct {
- u16 mode_data_length; /* Length of the following data transfer */
- u8 medium_type; /* Medium Type */
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned reserved3 :7;
- unsigned wp :1; /* Write protect */
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned wp :1; /* Write protect */
- unsigned reserved3 :7;
-#else
-#error "Bitfield endianness not defined! Check your byteorder.h"
-#endif
- u8 reserved[4];
-} idefloppy_mode_parameter_header_t;
-
static DEFINE_MUTEX(idefloppy_ref_mutex);
#define to_ide_floppy(obj) container_of(obj, struct ide_floppy_obj, kref)
return floppy;
}
-static void ide_floppy_release(struct kref *);
+static void idefloppy_cleanup_obj(struct kref *);
static void ide_floppy_put(struct ide_floppy_obj *floppy)
{
mutex_lock(&idefloppy_ref_mutex);
- kref_put(&floppy->kref, ide_floppy_release);
+ kref_put(&floppy->kref, idefloppy_cleanup_obj);
mutex_unlock(&idefloppy_ref_mutex);
}
/*
- * Too bad. The drive wants to send us data which we are not ready to accept.
- * Just throw it away.
+ * Too bad. The drive wants to send us data which we are not ready to accept.
+ * Just throw it away.
*/
-static void idefloppy_discard_data (ide_drive_t *drive, unsigned int bcount)
+static void idefloppy_discard_data(ide_drive_t *drive, unsigned int bcount)
{
while (bcount--)
(void) HWIF(drive)->INB(IDE_DATA_REG);
}
-#if IDEFLOPPY_DEBUG_BUGS
-static void idefloppy_write_zeros (ide_drive_t *drive, unsigned int bcount)
+static void idefloppy_write_zeros(ide_drive_t *drive, unsigned int bcount)
{
while (bcount--)
HWIF(drive)->OUTB(0, IDE_DATA_REG);
}
-#endif /* IDEFLOPPY_DEBUG_BUGS */
/*
- * idefloppy_do_end_request is used to finish servicing a request.
- *
- * For read/write requests, we will call ide_end_request to pass to the
- * next buffer.
+ * Used to finish servicing a request. For read/write requests, we will call
+ * ide_end_request to pass to the next buffer.
*/
static int idefloppy_do_end_request(ide_drive_t *drive, int uptodate, int nsecs)
{
struct request *rq = HWGROUP(drive)->rq;
int error;
- debug_log(KERN_INFO "Reached idefloppy_end_request\n");
+ debug_log("Reached %s\n", __func__);
switch (uptodate) {
- case 0: error = IDEFLOPPY_ERROR_GENERAL; break;
- case 1: error = 0; break;
- default: error = uptodate;
+ case 0: error = IDEFLOPPY_ERROR_GENERAL; break;
+ case 1: error = 0; break;
+ default: error = uptodate;
}
if (error)
floppy->failed_pc = NULL;
return 0;
}
-static void idefloppy_input_buffers (ide_drive_t *drive, idefloppy_pc_t *pc, unsigned int bcount)
-{
- struct request *rq = pc->rq;
- struct bio_vec *bvec;
- struct req_iterator iter;
- unsigned long flags;
- char *data;
- int count, done = 0;
-
- rq_for_each_segment(bvec, rq, iter) {
- if (!bcount)
- break;
-
- count = min(bvec->bv_len, bcount);
-
- data = bvec_kmap_irq(bvec, &flags);
- drive->hwif->atapi_input_bytes(drive, data, count);
- bvec_kunmap_irq(data, &flags);
-
- bcount -= count;
- pc->b_count += count;
- done += count;
- }
-
- idefloppy_do_end_request(drive, 1, done >> 9);
-
- if (bcount) {
- printk(KERN_ERR "%s: leftover data in idefloppy_input_buffers, bcount == %d\n", drive->name, bcount);
- idefloppy_discard_data(drive, bcount);
- }
-}
-
-static void idefloppy_output_buffers (ide_drive_t *drive, idefloppy_pc_t *pc, unsigned int bcount)
+static void ide_floppy_io_buffers(ide_drive_t *drive, idefloppy_pc_t *pc,
+ unsigned int bcount, int direction)
{
struct request *rq = pc->rq;
struct req_iterator iter;
count = min(bvec->bv_len, bcount);
data = bvec_kmap_irq(bvec, &flags);
- drive->hwif->atapi_output_bytes(drive, data, count);
+ if (direction)
+ drive->hwif->atapi_output_bytes(drive, data, count);
+ else
+ drive->hwif->atapi_input_bytes(drive, data, count);
bvec_kunmap_irq(data, &flags);
bcount -= count;
idefloppy_do_end_request(drive, 1, done >> 9);
-#if IDEFLOPPY_DEBUG_BUGS
if (bcount) {
- printk(KERN_ERR "%s: leftover data in idefloppy_output_buffers, bcount == %d\n", drive->name, bcount);
- idefloppy_write_zeros(drive, bcount);
+ printk(KERN_ERR "%s: leftover data in %s, bcount == %d\n",
+ drive->name, __func__, bcount);
+ if (direction)
+ idefloppy_write_zeros(drive, bcount);
+ else
+ idefloppy_discard_data(drive, bcount);
+
}
-#endif
}
-static void idefloppy_update_buffers (ide_drive_t *drive, idefloppy_pc_t *pc)
+static void idefloppy_update_buffers(ide_drive_t *drive, idefloppy_pc_t *pc)
{
struct request *rq = pc->rq;
struct bio *bio = rq->bio;
}
/*
- * idefloppy_queue_pc_head generates a new packet command request in front
- * of the request queue, before the current request, so that it will be
- * processed immediately, on the next pass through the driver.
+ * Generate a new packet command request in front of the request queue, before
+ * the current request so that it will be processed immediately, on the next
+ * pass through the driver.
*/
-static void idefloppy_queue_pc_head (ide_drive_t *drive,idefloppy_pc_t *pc,struct request *rq)
+static void idefloppy_queue_pc_head(ide_drive_t *drive, idefloppy_pc_t *pc,
+ struct request *rq)
{
struct ide_floppy_obj *floppy = drive->driver_data;
(void) ide_do_drive_cmd(drive, rq, ide_preempt);
}
-static idefloppy_pc_t *idefloppy_next_pc_storage (ide_drive_t *drive)
+static idefloppy_pc_t *idefloppy_next_pc_storage(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
if (floppy->pc_stack_index == IDEFLOPPY_PC_STACK)
- floppy->pc_stack_index=0;
+ floppy->pc_stack_index = 0;
return (&floppy->pc_stack[floppy->pc_stack_index++]);
}
-static struct request *idefloppy_next_rq_storage (ide_drive_t *drive)
+static struct request *idefloppy_next_rq_storage(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
return (&floppy->rq_stack[floppy->rq_stack_index++]);
}
-/*
- * idefloppy_analyze_error is called on each failed packet command retry
- * to analyze the request sense.
- */
-static void idefloppy_analyze_error (ide_drive_t *drive,idefloppy_request_sense_result_t *result)
+static void idefloppy_request_sense_callback(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
+ u8 *buf = floppy->pc->buffer;
- floppy->sense_key = result->sense_key;
- floppy->asc = result->asc;
- floppy->ascq = result->ascq;
- floppy->progress_indication = result->sksv[0] & 0x80 ?
- (u16)get_unaligned((u16 *)(result->sksv+1)):0x10000;
- if (floppy->failed_pc)
- debug_log(KERN_INFO "ide-floppy: pc = %x, sense key = %x, "
- "asc = %x, ascq = %x\n", floppy->failed_pc->c[0],
- result->sense_key, result->asc, result->ascq);
- else
- debug_log(KERN_INFO "ide-floppy: sense key = %x, asc = %x, "
- "ascq = %x\n", result->sense_key,
- result->asc, result->ascq);
-}
-
-static void idefloppy_request_sense_callback (ide_drive_t *drive)
-{
- idefloppy_floppy_t *floppy = drive->driver_data;
+ debug_log("Reached %s\n", __func__);
- debug_log(KERN_INFO "ide-floppy: Reached %s\n", __FUNCTION__);
-
if (!floppy->pc->error) {
- idefloppy_analyze_error(drive,(idefloppy_request_sense_result_t *) floppy->pc->buffer);
+ floppy->sense_key = buf[2] & 0x0F;
+ floppy->asc = buf[12];
+ floppy->ascq = buf[13];
+ floppy->progress_indication = buf[15] & 0x80 ?
+ (u16)get_unaligned((u16 *)&buf[16]) : 0x10000;
+
+ if (floppy->failed_pc)
+ debug_log("pc = %x, sense key = %x, asc = %x,"
+ " ascq = %x\n",
+ floppy->failed_pc->c[0],
+ floppy->sense_key,
+ floppy->asc,
+ floppy->ascq);
+ else
+ debug_log("sense key = %x, asc = %x, ascq = %x\n",
+ floppy->sense_key,
+ floppy->asc,
+ floppy->ascq);
+
+
idefloppy_do_end_request(drive, 1, 0);
} else {
- printk(KERN_ERR "Error in REQUEST SENSE itself - Aborting request!\n");
+ printk(KERN_ERR "Error in REQUEST SENSE itself - Aborting"
+ " request!\n");
idefloppy_do_end_request(drive, 0, 0);
}
}
-/*
- * General packet command callback function.
- */
-static void idefloppy_pc_callback (ide_drive_t *drive)
+/* General packet command callback function. */
+static void idefloppy_pc_callback(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
-
- debug_log(KERN_INFO "ide-floppy: Reached %s\n", __FUNCTION__);
+
+ debug_log("Reached %s\n", __func__);
idefloppy_do_end_request(drive, floppy->pc->error ? 0 : 1, 0);
}
-/*
- * idefloppy_init_pc initializes a packet command.
- */
-static void idefloppy_init_pc (idefloppy_pc_t *pc)
+static void idefloppy_init_pc(idefloppy_pc_t *pc)
{
memset(pc->c, 0, 12);
pc->retries = 0;
pc->callback = &idefloppy_pc_callback;
}
-static void idefloppy_create_request_sense_cmd (idefloppy_pc_t *pc)
+static void idefloppy_create_request_sense_cmd(idefloppy_pc_t *pc)
{
- idefloppy_init_pc(pc);
- pc->c[0] = IDEFLOPPY_REQUEST_SENSE_CMD;
+ idefloppy_init_pc(pc);
+ pc->c[0] = GPCMD_REQUEST_SENSE;
pc->c[4] = 255;
pc->request_transfer = 18;
pc->callback = &idefloppy_request_sense_callback;
}
/*
- * idefloppy_retry_pc is called when an error was detected during the
- * last packet command. We queue a request sense packet command in
- * the head of the request list.
+ * Called when an error was detected during the last packet command. We queue a
+ * request sense packet command in the head of the request list.
*/
-static void idefloppy_retry_pc (ide_drive_t *drive)
+static void idefloppy_retry_pc(ide_drive_t *drive)
{
idefloppy_pc_t *pc;
struct request *rq;
idefloppy_queue_pc_head(drive, pc, rq);
}
-/*
- * idefloppy_pc_intr is the usual interrupt handler which will be called
- * during a packet command.
- */
+/* The usual interrupt handler called during a packet command. */
static ide_startstop_t idefloppy_pc_intr (ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
ide_hwif_t *hwif = drive->hwif;
idefloppy_pc_t *pc = floppy->pc;
struct request *rq = pc->rq;
+ xfer_func_t *xferfunc;
unsigned int temp;
+ int dma_error = 0;
u16 bcount;
u8 stat, ireason;
- debug_log(KERN_INFO "ide-floppy: Reached %s interrupt handler\n",
- __FUNCTION__);
+ debug_log("Reached %s interrupt handler\n", __func__);
- if (test_bit(PC_DMA_IN_PROGRESS, &pc->flags)) {
- if (HWIF(drive)->ide_dma_end(drive)) {
- set_bit(PC_DMA_ERROR, &pc->flags);
+ if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
+ dma_error = hwif->ide_dma_end(drive);
+ if (dma_error) {
+ printk(KERN_ERR "%s: DMA %s error\n", drive->name,
+ rq_data_dir(rq) ? "write" : "read");
+ pc->flags |= PC_FLAG_DMA_ERROR;
} else {
pc->actually_transferred = pc->request_transfer;
idefloppy_update_buffers(drive, pc);
}
- debug_log(KERN_INFO "ide-floppy: DMA finished\n");
+ debug_log("DMA finished\n");
}
/* Clear the interrupt */
stat = drive->hwif->INB(IDE_STATUS_REG);
- if ((stat & DRQ_STAT) == 0) { /* No more interrupts */
- debug_log(KERN_INFO "Packet command completed, %d bytes "
- "transferred\n", pc->actually_transferred);
- clear_bit(PC_DMA_IN_PROGRESS, &pc->flags);
+ /* No more interrupts */
+ if ((stat & DRQ_STAT) == 0) {
+ debug_log("Packet command completed, %d bytes transferred\n",
+ pc->actually_transferred);
+ pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
local_irq_enable_in_hardirq();
- if ((stat & ERR_STAT) || test_bit(PC_DMA_ERROR, &pc->flags)) {
+ if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) {
/* Error detected */
- debug_log(KERN_INFO "ide-floppy: %s: I/O error\n",
- drive->name);
+ debug_log("%s: I/O error\n", drive->name);
rq->errors++;
- if (pc->c[0] == IDEFLOPPY_REQUEST_SENSE_CMD) {
+ if (pc->c[0] == GPCMD_REQUEST_SENSE) {
printk(KERN_ERR "ide-floppy: I/O error in "
"request sense command\n");
return ide_do_reset(drive);
return ide_stopped;
}
- if (test_and_clear_bit(PC_DMA_IN_PROGRESS, &pc->flags)) {
+ if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
+ pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
printk(KERN_ERR "ide-floppy: The floppy wants to issue "
"more interrupts in DMA mode\n");
ide_dma_off(drive);
ireason = hwif->INB(IDE_IREASON_REG);
if (ireason & CD) {
- printk(KERN_ERR "ide-floppy: CoD != 0 in idefloppy_pc_intr\n");
+ printk(KERN_ERR "ide-floppy: CoD != 0 in %s\n", __func__);
return ide_do_reset(drive);
}
- if (((ireason & IO) == IO) == test_bit(PC_WRITING, &pc->flags)) {
+ if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) {
/* Hopefully, we will never get here */
printk(KERN_ERR "ide-floppy: We wanted to %s, ",
(ireason & IO) ? "Write" : "Read");
(ireason & IO) ? "Read" : "Write");
return ide_do_reset(drive);
}
- if (!test_bit(PC_WRITING, &pc->flags)) {
+ if (!(pc->flags & PC_FLAG_WRITING)) {
/* Reading - Check that we have enough space */
temp = pc->actually_transferred + bcount;
if (temp > pc->request_transfer) {
"to send us more data than expected "
"- discarding data\n");
idefloppy_discard_data(drive, bcount);
- BUG_ON(HWGROUP(drive)->handler != NULL);
+
ide_set_handler(drive,
&idefloppy_pc_intr,
IDEFLOPPY_WAIT_CMD,
NULL);
return ide_started;
}
- debug_log(KERN_NOTICE "ide-floppy: The floppy wants to "
- "send us more data than expected - "
- "allowing transfer\n");
+ debug_log("The floppy wants to send us more data than"
+ " expected - allowing transfer\n");
}
}
- if (test_bit(PC_WRITING, &pc->flags)) {
- if (pc->buffer != NULL)
- /* Write the current buffer */
- hwif->atapi_output_bytes(drive, pc->current_position,
- bcount);
- else
- idefloppy_output_buffers(drive, pc, bcount);
- } else {
- if (pc->buffer != NULL)
- /* Read the current buffer */
- hwif->atapi_input_bytes(drive, pc->current_position,
- bcount);
- else
- idefloppy_input_buffers(drive, pc, bcount);
- }
+ if (pc->flags & PC_FLAG_WRITING)
+ xferfunc = hwif->atapi_output_bytes;
+ else
+ xferfunc = hwif->atapi_input_bytes;
+
+ if (pc->buffer)
+ xferfunc(drive, pc->current_position, bcount);
+ else
+ ide_floppy_io_buffers(drive, pc, bcount,
+ !!(pc->flags & PC_FLAG_WRITING));
+
/* Update the current position */
pc->actually_transferred += bcount;
pc->current_position += bcount;
- BUG_ON(HWGROUP(drive)->handler != NULL);
- ide_set_handler(drive, &idefloppy_pc_intr, IDEFLOPPY_WAIT_CMD, NULL); /* And set the interrupt handler again */
+ /* And set the interrupt handler again */
+ ide_set_handler(drive, &idefloppy_pc_intr, IDEFLOPPY_WAIT_CMD, NULL);
return ide_started;
}
* It fails at high speeds on the Iomega ZIP drive, so there's a slower version
* for that drive below. The algorithm is chosen based on drive type
*/
-static ide_startstop_t idefloppy_transfer_pc (ide_drive_t *drive)
+static ide_startstop_t idefloppy_transfer_pc(ide_drive_t *drive)
{
ide_startstop_t startstop;
idefloppy_floppy_t *floppy = drive->driver_data;
"issuing a packet command\n");
return ide_do_reset(drive);
}
- BUG_ON(HWGROUP(drive)->handler != NULL);
+
/* Set the interrupt routine */
ide_set_handler(drive, &idefloppy_pc_intr, IDEFLOPPY_WAIT_CMD, NULL);
/* Send the actual packet */
/*
- * What we have here is a classic case of a top half / bottom half
- * interrupt service routine. In interrupt mode, the device sends
- * an interrupt to signal it's ready to receive a packet. However,
- * we need to delay about 2-3 ticks before issuing the packet or we
- * gets in trouble.
+ * What we have here is a classic case of a top half / bottom half interrupt
+ * service routine. In interrupt mode, the device sends an interrupt to signal
+ * that it is ready to receive a packet. However, we need to delay about 2-3
+ * ticks before issuing the packet or we gets in trouble.
*
- * So, follow carefully. transfer_pc1 is called as an interrupt (or
- * directly). In either case, when the device says it's ready for a
- * packet, we schedule the packet transfer to occur about 2-3 ticks
- * later in transfer_pc2.
+ * So, follow carefully. transfer_pc1 is called as an interrupt (or directly).
+ * In either case, when the device says it's ready for a packet, we schedule
+ * the packet transfer to occur about 2-3 ticks later in transfer_pc2.
*/
-static int idefloppy_transfer_pc2 (ide_drive_t *drive)
+static int idefloppy_transfer_pc2(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
return IDEFLOPPY_WAIT_CMD;
}
-static ide_startstop_t idefloppy_transfer_pc1 (ide_drive_t *drive)
+static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
ide_startstop_t startstop;
"while issuing a packet command\n");
return ide_do_reset(drive);
}
- /*
+ /*
* The following delay solves a problem with ATAPI Zip 100 drives
* where the Busy flag was apparently being deasserted before the
* unit was ready to receive data. This was happening on a
* 40 and 50msec work well. idefloppy_pc_intr will not be actually
* used until after the packet is moved in about 50 msec.
*/
- BUG_ON(HWGROUP(drive)->handler != NULL);
- ide_set_handler(drive,
- &idefloppy_pc_intr, /* service routine for packet command */
- floppy->ticks, /* wait this long before "failing" */
- &idefloppy_transfer_pc2); /* fail == transfer_pc2 */
+
+ ide_set_handler(drive, &idefloppy_pc_intr, floppy->ticks,
+ &idefloppy_transfer_pc2);
return ide_started;
}
-/**
- * idefloppy_should_report_error()
- *
- * Supresses error messages resulting from Medium not present
- */
-static inline int idefloppy_should_report_error(idefloppy_floppy_t *floppy)
+static void ide_floppy_report_error(idefloppy_floppy_t *floppy,
+ idefloppy_pc_t *pc)
{
+ /* supress error messages resulting from Medium not present */
if (floppy->sense_key == 0x02 &&
floppy->asc == 0x3a &&
floppy->ascq == 0x00)
- return 0;
- return 1;
+ return;
+
+ printk(KERN_ERR "ide-floppy: %s: I/O error, pc = %2x, key = %2x, "
+ "asc = %2x, ascq = %2x\n",
+ floppy->drive->name, pc->c[0], floppy->sense_key,
+ floppy->asc, floppy->ascq);
+
}
-/*
- * Issue a packet command
- */
-static ide_startstop_t idefloppy_issue_pc (ide_drive_t *drive, idefloppy_pc_t *pc)
+static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
+ idefloppy_pc_t *pc)
{
idefloppy_floppy_t *floppy = drive->driver_data;
ide_hwif_t *hwif = drive->hwif;
u8 dma;
if (floppy->failed_pc == NULL &&
- pc->c[0] != IDEFLOPPY_REQUEST_SENSE_CMD)
+ pc->c[0] != GPCMD_REQUEST_SENSE)
floppy->failed_pc = pc;
/* Set the current packet command */
floppy->pc = pc;
- if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES ||
- test_bit(PC_ABORT, &pc->flags)) {
- /*
- * We will "abort" retrying a packet command in case
- * a legitimate error code was received.
- */
- if (!test_bit(PC_ABORT, &pc->flags)) {
- if (!test_bit(PC_SUPPRESS_ERROR, &pc->flags)) {
- if (idefloppy_should_report_error(floppy))
- printk(KERN_ERR "ide-floppy: %s: I/O error, "
- "pc = %2x, key = %2x, "
- "asc = %2x, ascq = %2x\n",
- drive->name, pc->c[0],
- floppy->sense_key,
- floppy->asc, floppy->ascq);
- }
- /* Giving up */
- pc->error = IDEFLOPPY_ERROR_GENERAL;
- }
+ if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) {
+ if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR))
+ ide_floppy_report_error(floppy, pc);
+ /* Giving up */
+ pc->error = IDEFLOPPY_ERROR_GENERAL;
+
floppy->failed_pc = NULL;
pc->callback(drive);
return ide_stopped;
}
- debug_log(KERN_INFO "Retry number - %d\n",pc->retries);
+ debug_log("Retry number - %d\n", pc->retries);
pc->retries++;
/* We haven't transferred any data yet */
pc->current_position = pc->buffer;
bcount = min(pc->request_transfer, 63 * 1024);
- if (test_and_clear_bit(PC_DMA_ERROR, &pc->flags))
+ if (pc->flags & PC_FLAG_DMA_ERROR) {
+ pc->flags &= ~PC_FLAG_DMA_ERROR;
ide_dma_off(drive);
-
+ }
dma = 0;
- if (test_bit(PC_DMA_RECOMMENDED, &pc->flags) && drive->using_dma)
+ if ((pc->flags & PC_FLAG_DMA_RECOMMENDED) && drive->using_dma)
dma = !hwif->dma_setup(drive);
ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK |
IDE_TFLAG_OUT_DEVICE, bcount, dma);
- if (dma) { /* Begin DMA, if necessary */
- set_bit(PC_DMA_IN_PROGRESS, &pc->flags);
+ if (dma) {
+ /* Begin DMA, if necessary */
+ pc->flags |= PC_FLAG_DMA_IN_PROGRESS;
hwif->dma_start(drive);
}
/* Can we transfer the packet when we get the interrupt or wait? */
- if (test_bit(IDEFLOPPY_ZIP_DRIVE, &floppy->flags)) {
+ if (floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE) {
/* wait */
pkt_xfer_routine = &idefloppy_transfer_pc1;
} else {
pkt_xfer_routine = &idefloppy_transfer_pc;
}
- if (test_bit (IDEFLOPPY_DRQ_INTERRUPT, &floppy->flags)) {
+ if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT) {
/* Issue the packet command */
ide_execute_command(drive, WIN_PACKETCMD,
pkt_xfer_routine,
}
}
-static void idefloppy_rw_callback (ide_drive_t *drive)
+static void idefloppy_rw_callback(ide_drive_t *drive)
{
- debug_log(KERN_INFO "ide-floppy: Reached idefloppy_rw_callback\n");
+ debug_log("Reached %s\n", __func__);
idefloppy_do_end_request(drive, 1, 0);
return;
}
-static void idefloppy_create_prevent_cmd (idefloppy_pc_t *pc, int prevent)
+static void idefloppy_create_prevent_cmd(idefloppy_pc_t *pc, int prevent)
{
- debug_log(KERN_INFO "ide-floppy: creating prevent removal command, "
- "prevent = %d\n", prevent);
+ debug_log("creating prevent removal command, prevent = %d\n", prevent);
idefloppy_init_pc(pc);
- pc->c[0] = IDEFLOPPY_PREVENT_REMOVAL_CMD;
+ pc->c[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL;
pc->c[4] = prevent;
}
-static void idefloppy_create_read_capacity_cmd (idefloppy_pc_t *pc)
+static void idefloppy_create_read_capacity_cmd(idefloppy_pc_t *pc)
{
idefloppy_init_pc(pc);
- pc->c[0] = IDEFLOPPY_READ_CAPACITY_CMD;
+ pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES;
pc->c[7] = 255;
pc->c[8] = 255;
pc->request_transfer = 255;
}
-static void idefloppy_create_format_unit_cmd (idefloppy_pc_t *pc, int b, int l,
+static void idefloppy_create_format_unit_cmd(idefloppy_pc_t *pc, int b, int l,
int flags)
{
idefloppy_init_pc(pc);
- pc->c[0] = IDEFLOPPY_FORMAT_UNIT_CMD;
+ pc->c[0] = GPCMD_FORMAT_UNIT;
pc->c[1] = 0x17;
memset(pc->buffer, 0, 12);
pc->buffer[1] ^= 0x20; /* ... turn off DCRT bit */
pc->buffer[3] = 8;
- put_unaligned(htonl(b), (unsigned int *)(&pc->buffer[4]));
- put_unaligned(htonl(l), (unsigned int *)(&pc->buffer[8]));
- pc->buffer_size=12;
- set_bit(PC_WRITING, &pc->flags);
+ put_unaligned(cpu_to_be32(b), (unsigned int *)(&pc->buffer[4]));
+ put_unaligned(cpu_to_be32(l), (unsigned int *)(&pc->buffer[8]));
+ pc->buffer_size = 12;
+ pc->flags |= PC_FLAG_WRITING;
}
-/*
- * A mode sense command is used to "sense" floppy parameters.
- */
-static void idefloppy_create_mode_sense_cmd (idefloppy_pc_t *pc, u8 page_code, u8 type)
+/* A mode sense command is used to "sense" floppy parameters. */
+static void idefloppy_create_mode_sense_cmd(idefloppy_pc_t *pc, u8 page_code,
+ u8 type)
{
- u16 length = sizeof(idefloppy_mode_parameter_header_t);
-
+ u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */
+
idefloppy_init_pc(pc);
- pc->c[0] = IDEFLOPPY_MODE_SENSE_CMD;
+ pc->c[0] = GPCMD_MODE_SENSE_10;
pc->c[1] = 0;
pc->c[2] = page_code + (type << 6);
switch (page_code) {
- case IDEFLOPPY_CAPABILITIES_PAGE:
- length += 12;
- break;
- case IDEFLOPPY_FLEXIBLE_DISK_PAGE:
- length += 32;
- break;
- default:
- printk(KERN_ERR "ide-floppy: unsupported page code "
+ case IDEFLOPPY_CAPABILITIES_PAGE:
+ length += 12;
+ break;
+ case IDEFLOPPY_FLEXIBLE_DISK_PAGE:
+ length += 32;
+ break;
+ default:
+ printk(KERN_ERR "ide-floppy: unsupported page code "
"in create_mode_sense_cmd\n");
}
- put_unaligned(htons(length), (u16 *) &pc->c[7]);
+ put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]);
pc->request_transfer = length;
}
-static void idefloppy_create_start_stop_cmd (idefloppy_pc_t *pc, int start)
+static void idefloppy_create_start_stop_cmd(idefloppy_pc_t *pc, int start)
{
idefloppy_init_pc(pc);
- pc->c[0] = IDEFLOPPY_START_STOP_CMD;
+ pc->c[0] = GPCMD_START_STOP_UNIT;
pc->c[4] = start;
}
static void idefloppy_create_test_unit_ready_cmd(idefloppy_pc_t *pc)
{
idefloppy_init_pc(pc);
- pc->c[0] = IDEFLOPPY_TEST_UNIT_READY_CMD;
+ pc->c[0] = GPCMD_TEST_UNIT_READY;
}
-static void idefloppy_create_rw_cmd (idefloppy_floppy_t *floppy, idefloppy_pc_t *pc, struct request *rq, unsigned long sector)
+static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy,
+ idefloppy_pc_t *pc, struct request *rq,
+ unsigned long sector)
{
int block = sector / floppy->bs_factor;
int blocks = rq->nr_sectors / floppy->bs_factor;
int cmd = rq_data_dir(rq);
- debug_log("create_rw1%d_cmd: block == %d, blocks == %d\n",
- 2 * test_bit (IDEFLOPPY_USE_READ12, &floppy->flags),
+ debug_log("create_rw10_cmd: block == %d, blocks == %d\n",
block, blocks);
idefloppy_init_pc(pc);
- if (test_bit(IDEFLOPPY_USE_READ12, &floppy->flags)) {
- pc->c[0] = cmd == READ ? IDEFLOPPY_READ12_CMD : IDEFLOPPY_WRITE12_CMD;
- put_unaligned(htonl(blocks), (unsigned int *) &pc->c[6]);
- } else {
- pc->c[0] = cmd == READ ? IDEFLOPPY_READ10_CMD : IDEFLOPPY_WRITE10_CMD;
- put_unaligned(htons(blocks), (unsigned short *) &pc->c[7]);
- }
- put_unaligned(htonl(block), (unsigned int *) &pc->c[2]);
+ pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10;
+ put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]);
+ put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]);
+
pc->callback = &idefloppy_rw_callback;
pc->rq = rq;
pc->b_count = cmd == READ ? 0 : rq->bio->bi_size;
if (rq->cmd_flags & REQ_RW)
- set_bit(PC_WRITING, &pc->flags);
+ pc->flags |= PC_FLAG_WRITING;
pc->buffer = NULL;
pc->request_transfer = pc->buffer_size = blocks * floppy->block_size;
- set_bit(PC_DMA_RECOMMENDED, &pc->flags);
+ pc->flags |= PC_FLAG_DMA_RECOMMENDED;
}
-static void
-idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy, idefloppy_pc_t *pc, struct request *rq)
+static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy,
+ idefloppy_pc_t *pc, struct request *rq)
{
idefloppy_init_pc(pc);
pc->callback = &idefloppy_rw_callback;
pc->rq = rq;
pc->b_count = rq->data_len;
if (rq->data_len && rq_data_dir(rq) == WRITE)
- set_bit(PC_WRITING, &pc->flags);
+ pc->flags |= PC_FLAG_WRITING;
pc->buffer = rq->data;
if (rq->bio)
- set_bit(PC_DMA_RECOMMENDED, &pc->flags);
-
+ pc->flags |= PC_FLAG_DMA_RECOMMENDED;
/*
* possibly problematic, doesn't look like ide-floppy correctly
* handled scattered requests if dma fails...
pc->request_transfer = pc->buffer_size = rq->data_len;
}
-/*
- * idefloppy_do_request is our request handling function.
- */
-static ide_startstop_t idefloppy_do_request (ide_drive_t *drive, struct request *rq, sector_t block_s)
+static ide_startstop_t idefloppy_do_request(ide_drive_t *drive,
+ struct request *rq, sector_t block_s)
{
idefloppy_floppy_t *floppy = drive->driver_data;
idefloppy_pc_t *pc;
unsigned long block = (unsigned long)block_s;
- debug_log(KERN_INFO "dev: %s, flags: %lx, errors: %d\n",
+ debug_log("dev: %s, cmd_type: %x, errors: %d\n",
rq->rq_disk ? rq->rq_disk->disk_name : "?",
- rq->flags, rq->errors);
- debug_log(KERN_INFO "sector: %ld, nr_sectors: %ld, "
+ rq->cmd_type, rq->errors);
+ debug_log("sector: %ld, nr_sectors: %ld, "
"current_nr_sectors: %d\n", (long)rq->sector,
rq->nr_sectors, rq->current_nr_sectors);
if (rq->errors >= ERROR_MAX) {
- if (floppy->failed_pc != NULL) {
- if (idefloppy_should_report_error(floppy))
- printk(KERN_ERR "ide-floppy: %s: I/O error, pc = %2x,"
- " key = %2x, asc = %2x, ascq = %2x\n",
- drive->name, floppy->failed_pc->c[0],
- floppy->sense_key, floppy->asc, floppy->ascq);
- }
+ if (floppy->failed_pc)
+ ide_floppy_report_error(floppy, floppy->failed_pc);
else
printk(KERN_ERR "ide-floppy: %s: I/O error\n",
drive->name);
if (blk_fs_request(rq)) {
if (((long)rq->sector % floppy->bs_factor) ||
(rq->nr_sectors % floppy->bs_factor)) {
- printk("%s: unsupported r/w request size\n",
- drive->name);
+ printk(KERN_ERR "%s: unsupported r/w request size\n",
+ drive->name);
idefloppy_do_end_request(drive, 0, 0);
return ide_stopped;
}
}
/*
- * idefloppy_queue_pc_tail adds a special packet command request to the
- * tail of the request queue, and waits for it to be serviced.
+ * Add a special packet command request to the tail of the request queue,
+ * and wait for it to be serviced.
*/
-static int idefloppy_queue_pc_tail (ide_drive_t *drive,idefloppy_pc_t *pc)
+static int idefloppy_queue_pc_tail(ide_drive_t *drive, idefloppy_pc_t *pc)
{
struct ide_floppy_obj *floppy = drive->driver_data;
struct request rq;
- ide_init_drive_cmd (&rq);
+ ide_init_drive_cmd(&rq);
rq.buffer = (char *) pc;
rq.cmd_type = REQ_TYPE_SPECIAL;
rq.rq_disk = floppy->disk;
}
/*
- * Look at the flexible disk page parameters. We will ignore the CHS
- * capacity parameters and use the LBA parameters instead.
+ * Look at the flexible disk page parameters. We ignore the CHS capacity
+ * parameters and use the LBA parameters instead.
*/
-static int idefloppy_get_flexible_disk_page (ide_drive_t *drive)
+static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
idefloppy_pc_t pc;
- idefloppy_mode_parameter_header_t *header;
- idefloppy_flexible_disk_page_t *page;
+ u8 *page;
int capacity, lba_capacity;
+ u16 transfer_rate, sector_size, cyls, rpm;
+ u8 heads, sectors;
+
+ idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE,
+ MODE_SENSE_CURRENT);
- idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE, MODE_SENSE_CURRENT);
- if (idefloppy_queue_pc_tail(drive,&pc)) {
- printk(KERN_ERR "ide-floppy: Can't get flexible disk "
- "page parameters\n");
+ if (idefloppy_queue_pc_tail(drive, &pc)) {
+ printk(KERN_ERR "ide-floppy: Can't get flexible disk page"
+ " parameters\n");
return 1;
}
- header = (idefloppy_mode_parameter_header_t *) pc.buffer;
- floppy->wp = header->wp;
+ floppy->wp = !!(pc.buffer[3] & 0x80);
set_disk_ro(floppy->disk, floppy->wp);
- page = (idefloppy_flexible_disk_page_t *) (header + 1);
-
- page->transfer_rate = ntohs(page->transfer_rate);
- page->sector_size = ntohs(page->sector_size);
- page->cyls = ntohs(page->cyls);
- page->rpm = ntohs(page->rpm);
- capacity = page->cyls * page->heads * page->sectors * page->sector_size;
- if (memcmp (page, &floppy->flexible_disk_page, sizeof (idefloppy_flexible_disk_page_t)))
+ page = &pc.buffer[8];
+
+ transfer_rate = be16_to_cpu(*(u16 *)&pc.buffer[8 + 2]);
+ sector_size = be16_to_cpu(*(u16 *)&pc.buffer[8 + 6]);
+ cyls = be16_to_cpu(*(u16 *)&pc.buffer[8 + 8]);
+ rpm = be16_to_cpu(*(u16 *)&pc.buffer[8 + 28]);
+ heads = pc.buffer[8 + 4];
+ sectors = pc.buffer[8 + 5];
+
+ capacity = cyls * heads * sectors * sector_size;
+
+ if (memcmp(page, &floppy->flexible_disk_page, 32))
printk(KERN_INFO "%s: %dkB, %d/%d/%d CHS, %d kBps, "
"%d sector size, %d rpm\n",
- drive->name, capacity / 1024, page->cyls,
- page->heads, page->sectors,
- page->transfer_rate / 8, page->sector_size, page->rpm);
-
- floppy->flexible_disk_page = *page;
- drive->bios_cyl = page->cyls;
- drive->bios_head = page->heads;
- drive->bios_sect = page->sectors;
+ drive->name, capacity / 1024, cyls, heads,
+ sectors, transfer_rate / 8, sector_size, rpm);
+
+ memcpy(&floppy->flexible_disk_page, page, 32);
+ drive->bios_cyl = cyls;
+ drive->bios_head = heads;
+ drive->bios_sect = sectors;
lba_capacity = floppy->blocks * floppy->block_size;
+
if (capacity < lba_capacity) {
printk(KERN_NOTICE "%s: The disk reports a capacity of %d "
"bytes, but the drive only handles %d\n",
drive->name, lba_capacity, capacity);
- floppy->blocks = floppy->block_size ? capacity / floppy->block_size : 0;
+ floppy->blocks = floppy->block_size ?
+ capacity / floppy->block_size : 0;
}
return 0;
}
-static int idefloppy_get_capability_page(ide_drive_t *drive)
+static int idefloppy_get_sfrp_bit(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
idefloppy_pc_t pc;
- idefloppy_mode_parameter_header_t *header;
- idefloppy_capabilities_page_t *page;
floppy->srfp = 0;
idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_CAPABILITIES_PAGE,
MODE_SENSE_CURRENT);
- set_bit(PC_SUPPRESS_ERROR, &pc.flags);
- if (idefloppy_queue_pc_tail(drive,&pc)) {
+ pc.flags |= PC_FLAG_SUPPRESS_ERROR;
+ if (idefloppy_queue_pc_tail(drive, &pc))
return 1;
- }
- header = (idefloppy_mode_parameter_header_t *) pc.buffer;
- page= (idefloppy_capabilities_page_t *)(header+1);
- floppy->srfp = page->srfp;
+ floppy->srfp = pc.buffer[8 + 2] & 0x40;
return (0);
}
/*
- * Determine if a media is present in the floppy drive, and if so,
- * its LBA capacity.
+ * Determine if a media is present in the floppy drive, and if so, its LBA
+ * capacity.
*/
-static int idefloppy_get_capacity (ide_drive_t *drive)
+static int ide_floppy_get_capacity(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
idefloppy_pc_t pc;
- idefloppy_capacity_header_t *header;
- idefloppy_capacity_descriptor_t *descriptor;
- int i, descriptors, rc = 1, blocks, length;
-
+ u8 *cap_desc;
+ u8 header_len, desc_cnt;
+ int i, rc = 1, blocks, length;
+
drive->bios_cyl = 0;
drive->bios_head = drive->bios_sect = 0;
floppy->blocks = 0;
printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");
return 1;
}
- header = (idefloppy_capacity_header_t *) pc.buffer;
- descriptors = header->length / sizeof(idefloppy_capacity_descriptor_t);
- descriptor = (idefloppy_capacity_descriptor_t *) (header + 1);
+ header_len = pc.buffer[3];
+ cap_desc = &pc.buffer[4];
+ desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */
+
+ for (i = 0; i < desc_cnt; i++) {
+ unsigned int desc_start = 4 + i*8;
+
+ blocks = be32_to_cpu(*(u32 *)&pc.buffer[desc_start]);
+ length = be16_to_cpu(*(u16 *)&pc.buffer[desc_start + 6]);
- for (i = 0; i < descriptors; i++, descriptor++) {
- blocks = descriptor->blocks = ntohl(descriptor->blocks);
- length = descriptor->length = ntohs(descriptor->length);
+ debug_log("Descriptor %d: %dkB, %d blocks, %d sector size\n",
+ i, blocks * length / 1024, blocks, length);
- if (!i)
- {
- switch (descriptor->dc) {
+ if (i)
+ continue;
+ /*
+ * the code below is valid only for the 1st descriptor, ie i=0
+ */
+
+ switch (pc.buffer[desc_start + 4] & 0x03) {
/* Clik! drive returns this instead of CAPACITY_CURRENT */
case CAPACITY_UNFORMATTED:
- if (!test_bit(IDEFLOPPY_CLIK_DRIVE, &floppy->flags))
- /*
+ if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE))
+ /*
* If it is not a clik drive, break out
* (maintains previous driver behaviour)
*/
break;
case CAPACITY_CURRENT:
/* Normal Zip/LS-120 disks */
- if (memcmp(descriptor, &floppy->capacity, sizeof (idefloppy_capacity_descriptor_t)))
+ if (memcmp(cap_desc, &floppy->cap_desc, 8))
printk(KERN_INFO "%s: %dkB, %d blocks, %d "
"sector size\n", drive->name,
blocks * length / 1024, blocks, length);
- floppy->capacity = *descriptor;
+ memcpy(&floppy->cap_desc, cap_desc, 8);
+
if (!length || length % 512) {
printk(KERN_NOTICE "%s: %d bytes block size "
"not supported\n", drive->name, length);
} else {
- floppy->blocks = blocks;
- floppy->block_size = length;
- if ((floppy->bs_factor = length / 512) != 1)
- printk(KERN_NOTICE "%s: warning: non "
+ floppy->blocks = blocks;
+ floppy->block_size = length;
+ floppy->bs_factor = length / 512;
+ if (floppy->bs_factor != 1)
+ printk(KERN_NOTICE "%s: warning: non "
"512 bytes block size not "
"fully supported\n",
drive->name);
- rc = 0;
+ rc = 0;
}
break;
case CAPACITY_NO_CARTRIDGE:
"in drive\n", drive->name);
break;
}
- }
- if (!i) {
- debug_log( "Descriptor 0 Code: %d\n",
- descriptor->dc);
- }
- debug_log( "Descriptor %d: %dkB, %d blocks, %d "
- "sector size\n", i, blocks * length / 1024, blocks,
- length);
+ debug_log("Descriptor 0 Code: %d\n",
+ pc.buffer[desc_start + 4] & 0x03);
}
/* Clik! disk does not support get_flexible_disk_page */
- if (!test_bit(IDEFLOPPY_CLIK_DRIVE, &floppy->flags)) {
- (void) idefloppy_get_flexible_disk_page(drive);
- }
+ if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE))
+ (void) ide_floppy_get_flexible_disk_page(drive);
set_capacity(floppy->disk, floppy->blocks * floppy->bs_factor);
return rc;
}
/*
-** Obtain the list of formattable capacities.
-** Very similar to idefloppy_get_capacity, except that we push the capacity
-** descriptors to userland, instead of our own structures.
-**
-** Userland gives us the following structure:
-**
-** struct idefloppy_format_capacities {
-** int nformats;
-** struct {
-** int nblocks;
-** int blocksize;
-** } formats[];
-** } ;
-**
-** userland initializes nformats to the number of allocated formats[]
-** records. On exit we set nformats to the number of records we've
-** actually initialized.
-**
-*/
-
-static int idefloppy_get_format_capacities(ide_drive_t *drive, int __user *arg)
+ * Obtain the list of formattable capacities.
+ * Very similar to ide_floppy_get_capacity, except that we push the capacity
+ * descriptors to userland, instead of our own structures.
+ *
+ * Userland gives us the following structure:
+ *
+ * struct idefloppy_format_capacities {
+ * int nformats;
+ * struct {
+ * int nblocks;
+ * int blocksize;
+ * } formats[];
+ * };
+ *
+ * userland initializes nformats to the number of allocated formats[] records.
+ * On exit we set nformats to the number of records we've actually initialized.
+ */
+
+static int ide_floppy_get_format_capacities(ide_drive_t *drive, int __user *arg)
{
- idefloppy_pc_t pc;
- idefloppy_capacity_header_t *header;
- idefloppy_capacity_descriptor_t *descriptor;
- int i, descriptors, blocks, length;
- int u_array_size;
- int u_index;
+ idefloppy_pc_t pc;
+ u8 header_len, desc_cnt;
+ int i, blocks, length, u_array_size, u_index;
int __user *argp;
if (get_user(u_array_size, arg))
idefloppy_create_read_capacity_cmd(&pc);
if (idefloppy_queue_pc_tail(drive, &pc)) {
printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");
- return (-EIO);
- }
- header = (idefloppy_capacity_header_t *) pc.buffer;
- descriptors = header->length /
- sizeof(idefloppy_capacity_descriptor_t);
- descriptor = (idefloppy_capacity_descriptor_t *) (header + 1);
+ return (-EIO);
+ }
+ header_len = pc.buffer[3];
+ desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */
u_index = 0;
argp = arg + 1;
/*
- ** We always skip the first capacity descriptor. That's the
- ** current capacity. We are interested in the remaining descriptors,
- ** the formattable capacities.
- */
+ * We always skip the first capacity descriptor. That's the current
+ * capacity. We are interested in the remaining descriptors, the
+ * formattable capacities.
+ */
+ for (i = 1; i < desc_cnt; i++) {
+ unsigned int desc_start = 4 + i*8;
- for (i=0; i<descriptors; i++, descriptor++) {
if (u_index >= u_array_size)
break; /* User-supplied buffer too small */
- if (i == 0)
- continue; /* Skip the first descriptor */
- blocks = ntohl(descriptor->blocks);
- length = ntohs(descriptor->length);
+ blocks = be32_to_cpu(*(u32 *)&pc.buffer[desc_start]);
+ length = be16_to_cpu(*(u16 *)&pc.buffer[desc_start + 6]);
if (put_user(blocks, argp))
return(-EFAULT);
}
/*
-** Send ATAPI_FORMAT_UNIT to the drive.
-**
-** Userland gives us the following structure:
-**
-** struct idefloppy_format_command {
-** int nblocks;
-** int blocksize;
-** int flags;
-** } ;
-**
-** flags is a bitmask, currently, the only defined flag is:
-**
-** 0x01 - verify media after format.
-*/
-
-static int idefloppy_begin_format(ide_drive_t *drive, int __user *arg)
-{
- int blocks;
- int length;
- int flags;
- idefloppy_pc_t pc;
-
- if (get_user(blocks, arg) ||
- get_user(length, arg+1) ||
- get_user(flags, arg+2)) {
- return (-EFAULT);
- }
-
- /* Get the SFRP bit */
- (void) idefloppy_get_capability_page(drive);
- idefloppy_create_format_unit_cmd(&pc, blocks, length, flags);
- if (idefloppy_queue_pc_tail(drive, &pc)) {
- return (-EIO);
- }
-
- return (0);
-}
-
-/*
-** Get ATAPI_FORMAT_UNIT progress indication.
-**
-** Userland gives a pointer to an int. The int is set to a progress
-** indicator 0-65536, with 65536=100%.
-**
-** If the drive does not support format progress indication, we just check
-** the dsc bit, and return either 0 or 65536.
-*/
+ * Get ATAPI_FORMAT_UNIT progress indication.
+ *
+ * Userland gives a pointer to an int. The int is set to a progress
+ * indicator 0-65536, with 65536=100%.
+ *
+ * If the drive does not support format progress indication, we just check
+ * the dsc bit, and return either 0 or 65536.
+ */
static int idefloppy_get_format_progress(ide_drive_t *drive, int __user *arg)
{
if (floppy->srfp) {
idefloppy_create_request_sense_cmd(&pc);
- if (idefloppy_queue_pc_tail(drive, &pc)) {
+ if (idefloppy_queue_pc_tail(drive, &pc))
return (-EIO);
- }
if (floppy->sense_key == 2 &&
floppy->asc == 4 &&
- floppy->ascq == 4) {
+ floppy->ascq == 4)
progress_indication = floppy->progress_indication;
- }
- /* Else assume format_unit has finished, and we're
- ** at 0x10000 */
+
+ /* Else assume format_unit has finished, and we're at 0x10000 */
} else {
unsigned long flags;
u8 stat;
return (0);
}
-/*
- * Return the current floppy capacity.
- */
-static sector_t idefloppy_capacity (ide_drive_t *drive)
+static sector_t idefloppy_capacity(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
unsigned long capacity = floppy->blocks * floppy->bs_factor;
}
/*
- * idefloppy_identify_device checks if we can support a drive,
- * based on the ATAPI IDENTIFY command results.
+ * Check whether we can support a drive, based on the ATAPI IDENTIFY command
+ * results.
*/
-static int idefloppy_identify_device (ide_drive_t *drive,struct hd_driveid *id)
+static int idefloppy_identify_device(ide_drive_t *drive, struct hd_driveid *id)
{
struct idefloppy_id_gcw gcw;
-#if IDEFLOPPY_DEBUG_INFO
- char buffer[80];
-#endif /* IDEFLOPPY_DEBUG_INFO */
*((u16 *) &gcw) = id->config;
if ((gcw.device_type == 5) &&
!strstr(id->model, "CD-ROM") &&
strstr(id->model, "ZIP"))
- gcw.device_type = 0;
+ gcw.device_type = 0;
#endif
-#if IDEFLOPPY_DEBUG_INFO
- printk(KERN_INFO "Dumping ATAPI Identify Device floppy parameters\n");
- switch (gcw.protocol) {
- case 0: case 1: sprintf(buffer, "ATA");break;
- case 2: sprintf(buffer, "ATAPI");break;
- case 3: sprintf(buffer, "Reserved (Unknown to ide-floppy)");break;
- }
- printk(KERN_INFO "Protocol Type: %s\n", buffer);
- switch (gcw.device_type) {
- case 0: sprintf(buffer, "Direct-access Device");break;
- case 1: sprintf(buffer, "Streaming Tape Device");break;
- case 2: case 3: case 4: sprintf (buffer, "Reserved");break;
- case 5: sprintf(buffer, "CD-ROM Device");break;
- case 6: sprintf(buffer, "Reserved");
- case 7: sprintf(buffer, "Optical memory Device");break;
- case 0x1f: sprintf(buffer, "Unknown or no Device type");break;
- default: sprintf(buffer, "Reserved");
- }
- printk(KERN_INFO "Device Type: %x - %s\n", gcw.device_type, buffer);
- printk(KERN_INFO "Removable: %s\n",gcw.removable ? "Yes":"No");
- switch (gcw.drq_type) {
- case 0: sprintf(buffer, "Microprocessor DRQ");break;
- case 1: sprintf(buffer, "Interrupt DRQ");break;
- case 2: sprintf(buffer, "Accelerated DRQ");break;
- case 3: sprintf(buffer, "Reserved");break;
- }
- printk(KERN_INFO "Command Packet DRQ Type: %s\n", buffer);
- switch (gcw.packet_size) {
- case 0: sprintf(buffer, "12 bytes");break;
- case 1: sprintf(buffer, "16 bytes");break;
- default: sprintf(buffer, "Reserved");break;
- }
- printk(KERN_INFO "Command Packet Size: %s\n", buffer);
-#endif /* IDEFLOPPY_DEBUG_INFO */
-
if (gcw.protocol != 2)
- printk(KERN_ERR "ide-floppy: Protocol is not ATAPI\n");
+ printk(KERN_ERR "ide-floppy: Protocol (0x%02x) is not ATAPI\n",
+ gcw.protocol);
else if (gcw.device_type != 0)
- printk(KERN_ERR "ide-floppy: Device type is not set to floppy\n");
+ printk(KERN_ERR "ide-floppy: Device type (0x%02x) is not set "
+ "to floppy\n", gcw.device_type);
else if (!gcw.removable)
printk(KERN_ERR "ide-floppy: The removable flag is not set\n");
else if (gcw.drq_type == 3) {
- printk(KERN_ERR "ide-floppy: Sorry, DRQ type %d not supported\n", gcw.drq_type);
+ printk(KERN_ERR "ide-floppy: Sorry, DRQ type (0x%02x) not "
+ "supported\n", gcw.drq_type);
} else if (gcw.packet_size != 0) {
- printk(KERN_ERR "ide-floppy: Packet size is not 12 bytes long\n");
+ printk(KERN_ERR "ide-floppy: Packet size (0x%02x) is not 12 "
+ "bytes long\n", gcw.packet_size);
} else
return 1;
return 0;
{
idefloppy_floppy_t *floppy = drive->driver_data;
-/*
- * drive setting name read/write data type min max mul_factor div_factor data pointer set function
- */
- ide_add_setting(drive, "bios_cyl", SETTING_RW, TYPE_INT, 0, 1023, 1, 1, &drive->bios_cyl, NULL);
- ide_add_setting(drive, "bios_head", SETTING_RW, TYPE_BYTE, 0, 255, 1, 1, &drive->bios_head, NULL);
- ide_add_setting(drive, "bios_sect", SETTING_RW, TYPE_BYTE, 0, 63, 1, 1, &drive->bios_sect, NULL);
- ide_add_setting(drive, "ticks", SETTING_RW, TYPE_BYTE, 0, 255, 1, 1, &floppy->ticks, NULL);
+ ide_add_setting(drive, "bios_cyl", SETTING_RW, TYPE_INT, 0, 1023, 1, 1,
+ &drive->bios_cyl, NULL);
+ ide_add_setting(drive, "bios_head", SETTING_RW, TYPE_BYTE, 0, 255, 1, 1,
+ &drive->bios_head, NULL);
+ ide_add_setting(drive, "bios_sect", SETTING_RW, TYPE_BYTE, 0, 63, 1, 1,
+ &drive->bios_sect, NULL);
+ ide_add_setting(drive, "ticks", SETTING_RW, TYPE_BYTE, 0, 255, 1, 1,
+ &floppy->ticks, NULL);
}
#else
static inline void idefloppy_add_settings(ide_drive_t *drive) { ; }
#endif
-/*
- * Driver initialization.
- */
-static void idefloppy_setup (ide_drive_t *drive, idefloppy_floppy_t *floppy)
+static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy)
{
struct idefloppy_id_gcw gcw;
*((u16 *) &gcw) = drive->id->config;
floppy->pc = floppy->pc_stack;
if (gcw.drq_type == 1)
- set_bit(IDEFLOPPY_DRQ_INTERRUPT, &floppy->flags);
+ floppy->flags |= IDEFLOPPY_FLAG_DRQ_INTERRUPT;
/*
- * We used to check revisions here. At this point however
- * I'm giving up. Just assume they are all broken, its easier.
+ * We used to check revisions here. At this point however I'm giving up.
+ * Just assume they are all broken, its easier.
*
- * The actual reason for the workarounds was likely
- * a driver bug after all rather than a firmware bug,
- * and the workaround below used to hide it. It should
- * be fixed as of version 1.9, but to be on the safe side
- * we'll leave the limitation below for the 2.2.x tree.
+ * The actual reason for the workarounds was likely a driver bug after
+ * all rather than a firmware bug, and the workaround below used to hide
+ * it. It should be fixed as of version 1.9, but to be on the safe side
+ * we'll leave the limitation below for the 2.2.x tree.
*/
-
if (!strncmp(drive->id->model, "IOMEGA ZIP 100 ATAPI", 20)) {
- set_bit(IDEFLOPPY_ZIP_DRIVE, &floppy->flags);
+ floppy->flags |= IDEFLOPPY_FLAG_ZIP_DRIVE;
/* This value will be visible in the /proc/ide/hdx/settings */
floppy->ticks = IDEFLOPPY_TICKS_DELAY;
blk_queue_max_sectors(drive->queue, 64);
}
/*
- * Guess what? The IOMEGA Clik! drive also needs the
- * above fix. It makes nasty clicking noises without
- * it, so please don't remove this.
- */
+ * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes
+ * nasty clicking noises without it, so please don't remove this.
+ */
if (strncmp(drive->id->model, "IOMEGA Clik!", 11) == 0) {
blk_queue_max_sectors(drive->queue, 64);
- set_bit(IDEFLOPPY_CLIK_DRIVE, &floppy->flags);
+ floppy->flags |= IDEFLOPPY_FLAG_CLIK_DRIVE;
}
-
- (void) idefloppy_get_capacity(drive);
+ (void) ide_floppy_get_capacity(drive);
idefloppy_add_settings(drive);
}
ide_floppy_put(floppy);
}
-static void ide_floppy_release(struct kref *kref)
+static void idefloppy_cleanup_obj(struct kref *kref)
{
struct ide_floppy_obj *floppy = to_ide_floppy(kref);
ide_drive_t *drive = floppy->drive;
}
#ifdef CONFIG_IDE_PROC_FS
-static int proc_idefloppy_read_capacity
- (char *page, char **start, off_t off, int count, int *eof, void *data)
+static int proc_idefloppy_read_capacity(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
ide_drive_t*drive = (ide_drive_t *)data;
int len;
- len = sprintf(page,"%llu\n", (long long)idefloppy_capacity(drive));
- PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+ len = sprintf(page, "%llu\n", (long long)idefloppy_capacity(drive));
+ PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
}
static ide_proc_entry_t idefloppy_proc[] = {
- { "capacity", S_IFREG|S_IRUGO, proc_idefloppy_read_capacity, NULL },
- { "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL },
+ { "capacity", S_IFREG|S_IRUGO, proc_idefloppy_read_capacity, NULL },
+ { "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL },
{ NULL, 0, NULL, NULL }
};
#endif /* CONFIG_IDE_PROC_FS */
idefloppy_pc_t pc;
int ret = 0;
- debug_log(KERN_INFO "Reached idefloppy_open\n");
+ debug_log("Reached %s\n", __func__);
- if (!(floppy = ide_floppy_get(disk)))
+ floppy = ide_floppy_get(disk);
+ if (!floppy)
return -ENXIO;
drive = floppy->drive;
floppy->openers++;
if (floppy->openers == 1) {
- clear_bit(IDEFLOPPY_FORMAT_IN_PROGRESS, &floppy->flags);
+ floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS;
/* Just in case */
idefloppy_create_test_unit_ready_cmd(&pc);
(void) idefloppy_queue_pc_tail(drive, &pc);
}
- if (idefloppy_get_capacity (drive)
+ if (ide_floppy_get_capacity(drive)
&& (filp->f_flags & O_NDELAY) == 0
/*
- ** Allow O_NDELAY to open a drive without a disk, or with
- ** an unreadable disk, so that we can get the format
- ** capacity of the drive or begin the format - Sam
- */
+ * Allow O_NDELAY to open a drive without a disk, or with an
+ * unreadable disk, so that we can get the format capacity
+ * of the drive or begin the format - Sam
+ */
) {
ret = -EIO;
goto out_put_floppy;
ret = -EROFS;
goto out_put_floppy;
}
- set_bit(IDEFLOPPY_MEDIA_CHANGED, &floppy->flags);
+ floppy->flags |= IDEFLOPPY_FLAG_MEDIA_CHANGED;
/* IOMEGA Clik! drives do not support lock/unlock commands */
- if (!test_bit(IDEFLOPPY_CLIK_DRIVE, &floppy->flags)) {
+ if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) {
idefloppy_create_prevent_cmd(&pc, 1);
(void) idefloppy_queue_pc_tail(drive, &pc);
}
check_disk_change(inode->i_bdev);
- } else if (test_bit(IDEFLOPPY_FORMAT_IN_PROGRESS, &floppy->flags)) {
+ } else if (floppy->flags & IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS) {
ret = -EBUSY;
goto out_put_floppy;
}
struct ide_floppy_obj *floppy = ide_floppy_g(disk);
ide_drive_t *drive = floppy->drive;
idefloppy_pc_t pc;
-
- debug_log(KERN_INFO "Reached idefloppy_release\n");
+
+ debug_log("Reached %s\n", __func__);
if (floppy->openers == 1) {
/* IOMEGA Clik! drives do not support lock/unlock commands */
- if (!test_bit(IDEFLOPPY_CLIK_DRIVE, &floppy->flags)) {
+ if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) {
idefloppy_create_prevent_cmd(&pc, 0);
(void) idefloppy_queue_pc_tail(drive, &pc);
}
- clear_bit(IDEFLOPPY_FORMAT_IN_PROGRESS, &floppy->flags);
+ floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS;
}
floppy->openers--;
return 0;
}
+static int ide_floppy_lockdoor(idefloppy_floppy_t *floppy, idefloppy_pc_t *pc,
+ unsigned long arg, unsigned int cmd)
+{
+ if (floppy->openers > 1)
+ return -EBUSY;
+
+ /* The IOMEGA Clik! Drive doesn't support this command -
+ * no room for an eject mechanism */
+ if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) {
+ int prevent = arg ? 1 : 0;
+
+ if (cmd == CDROMEJECT)
+ prevent = 0;
+
+ idefloppy_create_prevent_cmd(pc, prevent);
+ (void) idefloppy_queue_pc_tail(floppy->drive, pc);
+ }
+
+ if (cmd == CDROMEJECT) {
+ idefloppy_create_start_stop_cmd(pc, 2);
+ (void) idefloppy_queue_pc_tail(floppy->drive, pc);
+ }
+
+ return 0;
+}
+
+static int ide_floppy_format_unit(idefloppy_floppy_t *floppy,
+ int __user *arg)
+{
+ int blocks, length, flags, err = 0;
+ idefloppy_pc_t pc;
+
+ if (floppy->openers > 1) {
+ /* Don't format if someone is using the disk */
+ floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS;
+ return -EBUSY;
+ }
+
+ floppy->flags |= IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS;
+
+ /*
+ * Send ATAPI_FORMAT_UNIT to the drive.
+ *
+ * Userland gives us the following structure:
+ *
+ * struct idefloppy_format_command {
+ * int nblocks;
+ * int blocksize;
+ * int flags;
+ * } ;
+ *
+ * flags is a bitmask, currently, the only defined flag is:
+ *
+ * 0x01 - verify media after format.
+ */
+ if (get_user(blocks, arg) ||
+ get_user(length, arg+1) ||
+ get_user(flags, arg+2)) {
+ err = -EFAULT;
+ goto out;
+ }
+
+ (void) idefloppy_get_sfrp_bit(floppy->drive);
+ idefloppy_create_format_unit_cmd(&pc, blocks, length, flags);
+
+ if (idefloppy_queue_pc_tail(floppy->drive, &pc))
+ err = -EIO;
+
+out:
+ if (err)
+ floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS;
+ return err;
+}
+
+
static int idefloppy_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct block_device *bdev = inode->i_bdev;
struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk);
ide_drive_t *drive = floppy->drive;
+ idefloppy_pc_t pc;
void __user *argp = (void __user *)arg;
int err;
- int prevent = (arg) ? 1 : 0;
- idefloppy_pc_t pc;
switch (cmd) {
case CDROMEJECT:
- prevent = 0;
/* fall through */
case CDROM_LOCKDOOR:
- if (floppy->openers > 1)
- return -EBUSY;
-
- /* The IOMEGA Clik! Drive doesn't support this command - no room for an eject mechanism */
- if (!test_bit(IDEFLOPPY_CLIK_DRIVE, &floppy->flags)) {
- idefloppy_create_prevent_cmd(&pc, prevent);
- (void) idefloppy_queue_pc_tail(drive, &pc);
- }
- if (cmd == CDROMEJECT) {
- idefloppy_create_start_stop_cmd(&pc, 2);
- (void) idefloppy_queue_pc_tail(drive, &pc);
- }
- return 0;
+ return ide_floppy_lockdoor(floppy, &pc, arg, cmd);
case IDEFLOPPY_IOCTL_FORMAT_SUPPORTED:
return 0;
case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY:
- return idefloppy_get_format_capacities(drive, argp);
+ return ide_floppy_get_format_capacities(drive, argp);
case IDEFLOPPY_IOCTL_FORMAT_START:
-
if (!(file->f_mode & 2))
return -EPERM;
- if (floppy->openers > 1) {
- /* Don't format if someone is using the disk */
-
- clear_bit(IDEFLOPPY_FORMAT_IN_PROGRESS,
- &floppy->flags);
- return -EBUSY;
- }
-
- set_bit(IDEFLOPPY_FORMAT_IN_PROGRESS, &floppy->flags);
-
- err = idefloppy_begin_format(drive, argp);
- if (err)
- clear_bit(IDEFLOPPY_FORMAT_IN_PROGRESS, &floppy->flags);
- return err;
- /*
- ** Note, the bit will be cleared when the device is
- ** closed. This is the cleanest way to handle the
- ** situation where the drive does not support
- ** format progress reporting.
- */
+ return ide_floppy_format_unit(floppy, (int __user *)arg);
case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS:
return idefloppy_get_format_progress(drive, argp);
}
{
struct ide_floppy_obj *floppy = ide_floppy_g(disk);
ide_drive_t *drive = floppy->drive;
+ int ret;
/* do not scan partitions twice if this is a removable device */
if (drive->attach) {
drive->attach = 0;
return 0;
}
- return test_and_clear_bit(IDEFLOPPY_MEDIA_CHANGED, &floppy->flags);
+ ret = !!(floppy->flags & IDEFLOPPY_FLAG_MEDIA_CHANGED);
+ floppy->flags &= ~IDEFLOPPY_FLAG_MEDIA_CHANGED;
+ return ret;
}
static int idefloppy_revalidate_disk(struct gendisk *disk)
goto failed;
if (drive->media != ide_floppy)
goto failed;
- if (!idefloppy_identify_device (drive, drive->id)) {
- printk (KERN_ERR "ide-floppy: %s: not supported by this version of ide-floppy\n", drive->name);
+ if (!idefloppy_identify_device(drive, drive->id)) {
+ printk(KERN_ERR "ide-floppy: %s: not supported by this version"
+ " of ide-floppy\n", drive->name);
goto failed;
}
if (drive->scsi) {
- printk("ide-floppy: passing drive %s to ide-scsi emulation.\n", drive->name);
+ printk(KERN_INFO "ide-floppy: passing drive %s to ide-scsi"
+ " emulation.\n", drive->name);
goto failed;
}
- if ((floppy = kzalloc(sizeof (idefloppy_floppy_t), GFP_KERNEL)) == NULL) {
- printk (KERN_ERR "ide-floppy: %s: Can't allocate a floppy structure\n", drive->name);
+ floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL);
+ if (!floppy) {
+ printk(KERN_ERR "ide-floppy: %s: Can't allocate a floppy"
+ " structure\n", drive->name);
goto failed;
}
drive->driver_data = floppy;
- idefloppy_setup (drive, floppy);
+ idefloppy_setup(drive, floppy);
g->minors = 1 << PARTN_BITS;
g->driverfs_dev = &drive->gendev;
return -ENODEV;
}
-MODULE_DESCRIPTION("ATAPI FLOPPY Driver");
-
-static void __exit idefloppy_exit (void)
+static void __exit idefloppy_exit(void)
{
driver_unregister(&idefloppy_driver.gen_driver);
}
module_init(idefloppy_init);
module_exit(idefloppy_exit);
MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ATAPI FLOPPY Driver");
+
for (i = 0; i < MAX_HWIFS; i++)
idx[i] = ide_hwifs[i].present ? 0xff : i;
- ide_device_add_all(idx);
+ ide_device_add_all(idx, NULL);
if (ide_hwifs[0].io_ports[IDE_DATA_OFFSET])
ide_release_lock(); /* for atari only */
HWIF(drive)->OUTB(drive->select.all, IDE_SELECT_REG);
}
-EXPORT_SYMBOL(SELECT_DRIVE);
-
void SELECT_MASK (ide_drive_t *drive, int mask)
{
if (HWIF(drive)->maskproc)
return 0;
}
-int ide_ata66_check (ide_drive_t *drive, ide_task_t *args)
-{
- if (args->tf.command == WIN_SETFEATURES &&
- args->tf.nsect > XFER_UDMA_2 &&
- args->tf.feature == SETFEATURES_XFER) {
- if (eighty_ninty_three(drive) == 0) {
- printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot "
- "be set\n", drive->name);
- return 1;
- }
- }
-
- return 0;
-}
-
-/*
- * Backside of HDIO_DRIVE_CMD call of SETFEATURES_XFER.
- * 1 : Safe to update drive->id DMA registers.
- * 0 : OOPs not allowed.
- */
-int set_transfer (ide_drive_t *drive, ide_task_t *args)
-{
- if (args->tf.command == WIN_SETFEATURES &&
- args->tf.nsect >= XFER_SW_DMA_0 &&
- args->tf.feature == SETFEATURES_XFER &&
- (drive->id->dma_ultra ||
- drive->id->dma_mword ||
- drive->id->dma_1word))
- return 1;
-
- return 0;
-}
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
-static u8 ide_auto_reduce_xfer (ide_drive_t *drive)
-{
- if (!drive->crc_count)
- return drive->current_speed;
- drive->crc_count = 0;
-
- switch(drive->current_speed) {
- case XFER_UDMA_7: return XFER_UDMA_6;
- case XFER_UDMA_6: return XFER_UDMA_5;
- case XFER_UDMA_5: return XFER_UDMA_4;
- case XFER_UDMA_4: return XFER_UDMA_3;
- case XFER_UDMA_3: return XFER_UDMA_2;
- case XFER_UDMA_2: return XFER_UDMA_1;
- case XFER_UDMA_1: return XFER_UDMA_0;
- /*
- * OOPS we do not goto non Ultra DMA modes
- * without iCRC's available we force
- * the system to PIO and make the user
- * invoke the ATA-1 ATA-2 DMA modes.
- */
- case XFER_UDMA_0:
- default: return XFER_PIO_4;
- }
-}
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
int ide_driveid_update(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
unsigned long flags;
ide_hwgroup_t *hwgroup = HWGROUP(drive);
ide_hwif_t *hwif = HWIF(drive);
-
+
spin_lock_irqsave(&ide_lock, flags);
-
BUG_ON(hwgroup->handler);
- hwgroup->handler = handler;
- hwgroup->expiry = expiry;
- hwgroup->timer.expires = jiffies + timeout;
- hwgroup->req_gen_timer = hwgroup->req_gen;
- add_timer(&hwgroup->timer);
+ __ide_set_handler(drive, handler, timeout, expiry);
hwif->OUTBSYNC(drive, cmd, IDE_COMMAND_REG);
- /* Drive takes 400nS to respond, we must avoid the IRQ being
- serviced before that.
-
- FIXME: we could skip this delay with care on non shared
- devices
- */
+ /*
+ * Drive takes 400nS to respond, we must avoid the IRQ being
+ * serviced before that.
+ *
+ * FIXME: we could skip this delay with care on non shared devices
+ */
ndelay(400);
spin_unlock_irqrestore(&ide_lock, flags);
}
return ide_stopped;
}
-static void check_dma_crc(ide_drive_t *drive)
-{
-#ifdef CONFIG_BLK_DEV_IDEDMA
- if (drive->crc_count) {
- ide_dma_off_quietly(drive);
- ide_set_xfer_rate(drive, ide_auto_reduce_xfer(drive));
- if (drive->current_speed >= XFER_SW_DMA_0)
- ide_dma_on(drive);
- } else
- ide_dma_off(drive);
-#endif
-}
-
static void ide_disk_pre_reset(ide_drive_t *drive)
{
int legacy = (drive->id->cfs_enable_2 & 0x0400) ? 0 : 1;
else
drive->post_reset = 1;
+ if (drive->using_dma) {
+ if (drive->crc_count)
+ ide_check_dma_crc(drive);
+ else
+ ide_dma_off(drive);
+ }
+
if (!drive->keep_settings) {
- if (drive->using_dma) {
- check_dma_crc(drive);
- } else {
+ if (!drive->using_dma) {
drive->unmask = 0;
drive->io_32bit = 0;
}
return;
}
- if (drive->using_dma)
- check_dma_crc(drive);
if (HWIF(drive)->pre_reset != NULL)
HWIF(drive)->pre_reset(drive);
printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index);
pnp_set_drvdata(dev,hwif);
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
return 0;
}
static void idepnp_remove(struct pnp_dev * dev)
{
ide_hwif_t *hwif = pnp_get_drvdata(dev);
- if (hwif) {
- ide_unregister(hwif->index);
- } else
+
+ if (hwif)
+ ide_unregister(hwif->index, 0, 0);
+ else
printk(KERN_ERR "idepnp: Unable to remove device, please report.\n");
}
static int do_probe (ide_drive_t *drive, u8 cmd)
{
- int rc;
ide_hwif_t *hwif = HWIF(drive);
+ int rc;
+ u8 stat;
if (drive->present) {
/* avoid waiting for inappropriate probes */
/* failed: try again */
rc = try_to_identify(drive,cmd);
}
- if (hwif->INB(IDE_STATUS_REG) == (BUSY_STAT|READY_STAT))
+
+ stat = hwif->INB(IDE_STATUS_REG);
+
+ if (stat == (BUSY_STAT | READY_STAT))
return 4;
if ((rc == 1 && cmd == WIN_PIDENTIFY) &&
((drive->autotune == IDE_TUNE_DEFAULT) ||
(drive->autotune == IDE_TUNE_AUTO))) {
- printk("%s: no response (status = 0x%02x), "
- "resetting drive\n", drive->name,
- hwif->INB(IDE_STATUS_REG));
+ printk(KERN_ERR "%s: no response (status = 0x%02x), "
+ "resetting drive\n", drive->name, stat);
msleep(50);
hwif->OUTB(drive->select.all, IDE_SELECT_REG);
msleep(50);
(void)ide_busy_sleep(hwif);
rc = try_to_identify(drive, cmd);
}
+
+ /* ensure drive IRQ is clear */
+ stat = hwif->INB(IDE_STATUS_REG);
+
if (rc == 1)
- printk("%s: no response (status = 0x%02x)\n",
- drive->name, hwif->INB(IDE_STATUS_REG));
- /* ensure drive irq is clear */
- (void) hwif->INB(IDE_STATUS_REG);
+ printk(KERN_ERR "%s: no response (status = 0x%02x)\n",
+ drive->name, stat);
} else {
/* not present or maybe ATAPI */
rc = 3;
static void enable_nest (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
+ u8 stat;
printk("%s: enabling %s -- ", hwif->name, drive->id->model);
SELECT_DRIVE(drive);
msleep(50);
- if (!OK_STAT((hwif->INB(IDE_STATUS_REG)), 0, BAD_STAT)) {
- printk("failed (status = 0x%02x)\n", hwif->INB(IDE_STATUS_REG));
- } else {
- printk("success\n");
- }
+ stat = hwif->INB(IDE_STATUS_REG);
+
+ if (!OK_STAT(stat, 0, BAD_STAT))
+ printk(KERN_CONT "failed (status = 0x%02x)\n", stat);
+ else
+ printk(KERN_CONT "success\n");
/* if !(success||timed-out) */
if (do_probe(drive, WIN_IDENTIFY) >= 2) {
for (unit = 0; unit < MAX_DRIVES; ++unit) {
ide_drive_t *drive = &hwif->drives[unit];
- if (hwif->no_io_32bit)
+ if (hwif->host_flags & IDE_HFLAG_NO_IO_32BIT)
drive->no_io_32bit = 1;
else
drive->no_io_32bit = drive->id->dword_io ? 1 : 0;
q->queuedata = drive;
blk_queue_segment_boundary(q, 0xffff);
- if (!hwif->rqsize) {
- if ((hwif->host_flags & IDE_HFLAG_NO_LBA48) ||
- (hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA))
- hwif->rqsize = 256;
- else
- hwif->rqsize = 65536;
- }
if (hwif->rqsize < max_sectors)
max_sectors = hwif->rqsize;
blk_queue_max_sectors(q, max_sectors);
return 0;
}
+static void ide_add_drive_to_hwgroup(ide_drive_t *drive)
+{
+ ide_hwgroup_t *hwgroup = drive->hwif->hwgroup;
+
+ spin_lock_irq(&ide_lock);
+ if (!hwgroup->drive) {
+ /* first drive for hwgroup. */
+ drive->next = drive;
+ hwgroup->drive = drive;
+ hwgroup->hwif = HWIF(hwgroup->drive);
+ } else {
+ drive->next = hwgroup->drive->next;
+ hwgroup->drive->next = drive;
+ }
+ spin_unlock_irq(&ide_lock);
+}
+
+/*
+ * For any present drive:
+ * - allocate the block device queue
+ * - link drive into the hwgroup
+ */
+static void ide_port_setup_devices(ide_hwif_t *hwif)
+{
+ int i;
+
+ for (i = 0; i < MAX_DRIVES; i++) {
+ ide_drive_t *drive = &hwif->drives[i];
+
+ if (!drive->present)
+ continue;
+
+ if (ide_init_queue(drive)) {
+ printk(KERN_ERR "ide: failed to init %s\n",
+ drive->name);
+ continue;
+ }
+
+ ide_add_drive_to_hwgroup(drive);
+ }
+}
+
/*
* This routine sets up the irq for an ide interface, and creates a new
* hwgroup for the irq/hwif if none was previously assigned.
goto out_unlink;
}
- /*
- * For any present drive:
- * - allocate the block device queue
- * - link drive into the hwgroup
- */
- for (index = 0; index < MAX_DRIVES; ++index) {
- ide_drive_t *drive = &hwif->drives[index];
- if (!drive->present)
- continue;
- if (ide_init_queue(drive)) {
- printk(KERN_ERR "ide: failed to init %s\n",drive->name);
- continue;
- }
- spin_lock_irq(&ide_lock);
- if (!hwgroup->drive) {
- /* first drive for hwgroup. */
- drive->next = drive;
- hwgroup->drive = drive;
- hwgroup->hwif = HWIF(hwgroup->drive);
- } else {
- drive->next = hwgroup->drive->next;
- hwgroup->drive->next = drive;
- }
- spin_unlock_irq(&ide_lock);
+ if (!hwif->rqsize) {
+ if ((hwif->host_flags & IDE_HFLAG_NO_LBA48) ||
+ (hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA))
+ hwif->rqsize = 256;
+ else
+ hwif->rqsize = 65536;
}
#if !defined(__mc68000__) && !defined(CONFIG_APUS)
printk(" (%sed with %s)",
hwif->sharing_irq ? "shar" : "serializ", match->name);
printk("\n");
+
+ ide_port_setup_devices(hwif);
+
mutex_unlock(&ide_cfg_mtx);
return 0;
out_unlink:
complete(&drive->gendev_rel_comp);
}
-/*
- * init_gendisk() (as opposed to ide_geninit) is called for each major device,
- * after probing for drives, to allocate partition tables and other data
- * structures needed for the routines in genhd.c. ide_geninit() gets called
- * somewhat later, during the partition check.
- */
-static void init_gendisk (ide_hwif_t *hwif)
-{
- unsigned int unit;
-
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t * drive = &hwif->drives[unit];
- ide_add_generic_settings(drive);
- snprintf(drive->gendev.bus_id,BUS_ID_SIZE,"%u.%u",
- hwif->index,unit);
- drive->gendev.parent = &hwif->gendev;
- drive->gendev.bus = &ide_bus_type;
- drive->gendev.driver_data = drive;
- drive->gendev.release = drive_release_dev;
- }
- blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS,
- THIS_MODULE, ata_probe, ata_lock, hwif);
-}
-
static int hwif_init(ide_hwif_t *hwif)
{
int old_irq;
hwif->name, hwif->irq);
done:
- init_gendisk(hwif);
- ide_acpi_init(hwif);
+ blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS,
+ THIS_MODULE, ata_probe, ata_lock, hwif);
return 1;
out:
for (i = 0; i < MAX_DRIVES; i++) {
ide_drive_t *drive = &hwif->drives[i];
+ struct device *dev = &drive->gendev;
+ int ret;
- if (drive->present) {
- int ret = device_register(&drive->gendev);
+ if (!drive->present)
+ continue;
- if (ret < 0)
- printk(KERN_WARNING "IDE: %s: "
- "device_register error: %d\n",
- __FUNCTION__, ret);
- }
+ ide_add_generic_settings(drive);
+
+ snprintf(dev->bus_id, BUS_ID_SIZE, "%u.%u", hwif->index, i);
+ dev->parent = &hwif->gendev;
+ dev->bus = &ide_bus_type;
+ dev->driver_data = drive;
+ dev->release = drive_release_dev;
+
+ ret = device_register(dev);
+ if (ret < 0)
+ printk(KERN_WARNING "IDE: %s: device_register error: "
+ "%d\n", __func__, ret);
+ }
+}
+
+static void ide_port_init_devices(ide_hwif_t *hwif)
+{
+ int i;
+
+ for (i = 0; i < MAX_DRIVES; i++) {
+ ide_drive_t *drive = &hwif->drives[i];
+
+ if (hwif->host_flags & IDE_HFLAG_IO_32BIT)
+ drive->io_32bit = 1;
+ if (hwif->host_flags & IDE_HFLAG_UNMASK_IRQS)
+ drive->unmask = 1;
+ if (hwif->host_flags & IDE_HFLAG_NO_UNMASK_IRQS)
+ drive->no_unmask = 1;
+ if ((hwif->host_flags & IDE_HFLAG_NO_AUTOTUNE) == 0)
+ drive->autotune = 1;
+ }
+
+ if (hwif->port_init_devs)
+ hwif->port_init_devs(hwif);
+}
+
+static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
+ const struct ide_port_info *d)
+{
+ if (d->chipset != ide_etrax100)
+ hwif->channel = port;
+
+ if (d->chipset)
+ hwif->chipset = d->chipset;
+
+ if (d->init_iops)
+ d->init_iops(hwif);
+
+ if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0)
+ ide_hwif_setup_dma(hwif, d);
+
+ if ((!hwif->irq && (d->host_flags & IDE_HFLAG_LEGACY_IRQS)) ||
+ (d->host_flags & IDE_HFLAG_FORCE_LEGACY_IRQS))
+ hwif->irq = port ? 15 : 14;
+
+ hwif->host_flags = d->host_flags;
+ hwif->pio_mask = d->pio_mask;
+
+ if ((d->host_flags & IDE_HFLAG_SERIALIZE) && hwif->mate)
+ hwif->mate->serialized = hwif->serialized = 1;
+
+ hwif->swdma_mask = d->swdma_mask;
+ hwif->mwdma_mask = d->mwdma_mask;
+ hwif->ultra_mask = d->udma_mask;
+
+ /* reset DMA masks only for SFF-style DMA controllers */
+ if ((d->host_flags && IDE_HFLAG_NO_DMA) == 0 && hwif->dma_base == 0)
+ hwif->swdma_mask = hwif->mwdma_mask = hwif->ultra_mask = 0;
+
+ if (d->host_flags & IDE_HFLAG_RQSIZE_256)
+ hwif->rqsize = 256;
+
+ /* call chipset specific routine for each enabled port */
+ if (d->init_hwif)
+ d->init_hwif(hwif);
+
+ if (hwif->cable_detect && (hwif->ultra_mask & 0x78)) {
+ if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+ hwif->cbl = hwif->cable_detect(hwif);
}
}
-int ide_device_add_all(u8 *idx)
+int ide_device_add_all(u8 *idx, const struct ide_port_info *d)
{
- ide_hwif_t *hwif;
+ ide_hwif_t *hwif, *mate = NULL;
int i, rc = 0;
+ for (i = 0; i < MAX_HWIFS; i++) {
+ if (d == NULL || idx[i] == 0xff) {
+ mate = NULL;
+ continue;
+ }
+
+ hwif = &ide_hwifs[idx[i]];
+
+ if (d->chipset != ide_etrax100 && (i & 1) && mate) {
+ hwif->mate = mate;
+ mate->mate = hwif;
+ }
+
+ mate = (i & 1) ? NULL : hwif;
+
+ ide_init_port(hwif, i & 1, d);
+ ide_port_init_devices(hwif);
+ }
+
for (i = 0; i < MAX_HWIFS; i++) {
if (idx[i] == 0xff)
continue;
rc = -1;
continue;
}
+
+ ide_acpi_init(hwif);
+ ide_acpi_port_init_devices(hwif);
}
for (i = 0; i < MAX_HWIFS; i++) {
}
for (i = 0; i < MAX_HWIFS; i++) {
- if (idx[i] != 0xff)
- ide_proc_register_port(&ide_hwifs[idx[i]]);
+ if (idx[i] == 0xff)
+ continue;
+
+ hwif = &ide_hwifs[idx[i]];
+
+ if (hwif->present) {
+ ide_proc_register_port(hwif);
+ ide_proc_port_register_devices(hwif);
+ }
}
return rc;
}
EXPORT_SYMBOL_GPL(ide_device_add_all);
-int ide_device_add(u8 idx[4])
+int ide_device_add(u8 idx[4], const struct ide_port_info *d)
{
u8 idx_all[MAX_HWIFS];
int i;
for (i = 0; i < MAX_HWIFS; i++)
idx_all[i] = (i < 4) ? idx[i] : 0xff;
- return ide_device_add_all(idx_all);
+ return ide_device_add_all(idx_all, d);
}
EXPORT_SYMBOL_GPL(ide_device_add);
EXPORT_SYMBOL(ide_proc_unregister_driver);
-static void create_proc_ide_drives(ide_hwif_t *hwif)
+void ide_proc_port_register_devices(ide_hwif_t *hwif)
{
int d;
struct proc_dir_entry *ent;
void ide_proc_register_port(ide_hwif_t *hwif)
{
- if (!hwif->present)
- return;
-
if (!hwif->proc) {
hwif->proc = proc_mkdir(hwif->name, proc_ide_root);
ide_add_proc_entries(hwif->proc, hwif_entries, hwif);
}
-
- create_proc_ide_drives(hwif);
}
#ifdef CONFIG_BLK_DEV_IDEPCI
/*
+ * IDE ATAPI streaming tape driver.
+ *
* Copyright (C) 1995-1999 Gadi Oxman <gadio@netvision.net.il>
* Copyright (C) 2003-2005 Bartlomiej Zolnierkiewicz
*
- * $Header$
- *
* This driver was constructed as a student project in the software laboratory
* of the faculty of electrical engineering in the Technion - Israel's
* Institute Of Technology, with the guide of Avner Lottem and Dr. Ilana David.
*
* It is hereby placed under the terms of the GNU general public license.
* (See linux/COPYING).
- */
-
-/*
- * IDE ATAPI streaming tape driver.
- *
- * This driver is a part of the Linux ide driver and works in co-operation
- * with linux/drivers/block/ide.c.
- *
- * The driver, in co-operation with ide.c, basically traverses the
- * request-list for the block device interface. The character device
- * interface, on the other hand, creates new requests, adds them
- * to the request-list of the block device, and waits for their completion.
- *
- * Pipelined operation mode is now supported on both reads and writes.
- *
- * The block device major and minor numbers are determined from the
- * tape's relative position in the ide interfaces, as explained in ide.c.
- *
- * The character device interface consists of the following devices:
- *
- * ht0 major 37, minor 0 first IDE tape, rewind on close.
- * ht1 major 37, minor 1 second IDE tape, rewind on close.
- * ...
- * nht0 major 37, minor 128 first IDE tape, no rewind on close.
- * nht1 major 37, minor 129 second IDE tape, no rewind on close.
- * ...
- *
- * Run linux/scripts/MAKEDEV.ide to create the above entries.
- *
- * The general magnetic tape commands compatible interface, as defined by
- * include/linux/mtio.h, is accessible through the character device.
- *
- * General ide driver configuration options, such as the interrupt-unmask
- * flag, can be configured by issuing an ioctl to the block device interface,
- * as any other ide device.
- *
- * Our own ide-tape ioctl's can be issued to either the block device or
- * the character device interface.
- *
- * Maximal throughput with minimal bus load will usually be achieved in the
- * following scenario:
- *
- * 1. ide-tape is operating in the pipelined operation mode.
- * 2. No buffering is performed by the user backup program.
- *
- * Testing was done with a 2 GB CONNER CTMA 4000 IDE ATAPI Streaming Tape Drive.
- *
- * Ver 0.1 Nov 1 95 Pre-working code :-)
- * Ver 0.2 Nov 23 95 A short backup (few megabytes) and restore procedure
- * was successful ! (Using tar cvf ... on the block
- * device interface).
- * A longer backup resulted in major swapping, bad
- * overall Linux performance and eventually failed as
- * we received non serial read-ahead requests from the
- * buffer cache.
- * Ver 0.3 Nov 28 95 Long backups are now possible, thanks to the
- * character device interface. Linux's responsiveness
- * and performance doesn't seem to be much affected
- * from the background backup procedure.
- * Some general mtio.h magnetic tape operations are
- * now supported by our character device. As a result,
- * popular tape utilities are starting to work with
- * ide tapes :-)
- * The following configurations were tested:
- * 1. An IDE ATAPI TAPE shares the same interface
- * and irq with an IDE ATAPI CDROM.
- * 2. An IDE ATAPI TAPE shares the same interface
- * and irq with a normal IDE disk.
- * Both configurations seemed to work just fine !
- * However, to be on the safe side, it is meanwhile
- * recommended to give the IDE TAPE its own interface
- * and irq.
- * The one thing which needs to be done here is to
- * add a "request postpone" feature to ide.c,
- * so that we won't have to wait for the tape to finish
- * performing a long media access (DSC) request (such
- * as a rewind) before we can access the other device
- * on the same interface. This effect doesn't disturb
- * normal operation most of the time because read/write
- * requests are relatively fast, and once we are
- * performing one tape r/w request, a lot of requests
- * from the other device can be queued and ide.c will
- * service all of them after this single tape request.
- * Ver 1.0 Dec 11 95 Integrated into Linux 1.3.46 development tree.
- * On each read / write request, we now ask the drive
- * if we can transfer a constant number of bytes
- * (a parameter of the drive) only to its buffers,
- * without causing actual media access. If we can't,
- * we just wait until we can by polling the DSC bit.
- * This ensures that while we are not transferring
- * more bytes than the constant referred to above, the
- * interrupt latency will not become too high and
- * we won't cause an interrupt timeout, as happened
- * occasionally in the previous version.
- * While polling for DSC, the current request is
- * postponed and ide.c is free to handle requests from
- * the other device. This is handled transparently to
- * ide.c. The hwgroup locking method which was used
- * in the previous version was removed.
- * Use of new general features which are provided by
- * ide.c for use with atapi devices.
- * (Programming done by Mark Lord)
- * Few potential bug fixes (Again, suggested by Mark)
- * Single character device data transfers are now
- * not limited in size, as they were before.
- * We are asking the tape about its recommended
- * transfer unit and send a larger data transfer
- * as several transfers of the above size.
- * For best results, use an integral number of this
- * basic unit (which is shown during driver
- * initialization). I will soon add an ioctl to get
- * this important parameter.
- * Our data transfer buffer is allocated on startup,
- * rather than before each data transfer. This should
- * ensure that we will indeed have a data buffer.
- * Ver 1.1 Dec 14 95 Fixed random problems which occurred when the tape
- * shared an interface with another device.
- * (poll_for_dsc was a complete mess).
- * Removed some old (non-active) code which had
- * to do with supporting buffer cache originated
- * requests.
- * The block device interface can now be opened, so
- * that general ide driver features like the unmask
- * interrupts flag can be selected with an ioctl.
- * This is the only use of the block device interface.
- * New fast pipelined operation mode (currently only on
- * writes). When using the pipelined mode, the
- * throughput can potentially reach the maximum
- * tape supported throughput, regardless of the
- * user backup program. On my tape drive, it sometimes
- * boosted performance by a factor of 2. Pipelined
- * mode is enabled by default, but since it has a few
- * downfalls as well, you may want to disable it.
- * A short explanation of the pipelined operation mode
- * is available below.
- * Ver 1.2 Jan 1 96 Eliminated pipelined mode race condition.
- * Added pipeline read mode. As a result, restores
- * are now as fast as backups.
- * Optimized shared interface behavior. The new behavior
- * typically results in better IDE bus efficiency and
- * higher tape throughput.
- * Pre-calculation of the expected read/write request
- * service time, based on the tape's parameters. In
- * the pipelined operation mode, this allows us to
- * adjust our polling frequency to a much lower value,
- * and thus to dramatically reduce our load on Linux,
- * without any decrease in performance.
- * Implemented additional mtio.h operations.
- * The recommended user block size is returned by
- * the MTIOCGET ioctl.
- * Additional minor changes.
- * Ver 1.3 Feb 9 96 Fixed pipelined read mode bug which prevented the
- * use of some block sizes during a restore procedure.
- * The character device interface will now present a
- * continuous view of the media - any mix of block sizes
- * during a backup/restore procedure is supported. The
- * driver will buffer the requests internally and
- * convert them to the tape's recommended transfer
- * unit, making performance almost independent of the
- * chosen user block size.
- * Some improvements in error recovery.
- * By cooperating with ide-dma.c, bus mastering DMA can
- * now sometimes be used with IDE tape drives as well.
- * Bus mastering DMA has the potential to dramatically
- * reduce the CPU's overhead when accessing the device,
- * and can be enabled by using hdparm -d1 on the tape's
- * block device interface. For more info, read the
- * comments in ide-dma.c.
- * Ver 1.4 Mar 13 96 Fixed serialize support.
- * Ver 1.5 Apr 12 96 Fixed shared interface operation, broken in 1.3.85.
- * Fixed pipelined read mode inefficiency.
- * Fixed nasty null dereferencing bug.
- * Ver 1.6 Aug 16 96 Fixed FPU usage in the driver.
- * Fixed end of media bug.
- * Ver 1.7 Sep 10 96 Minor changes for the CONNER CTT8000-A model.
- * Ver 1.8 Sep 26 96 Attempt to find a better balance between good
- * interactive response and high system throughput.
- * Ver 1.9 Nov 5 96 Automatically cross encountered filemarks rather
- * than requiring an explicit FSF command.
- * Abort pending requests at end of media.
- * MTTELL was sometimes returning incorrect results.
- * Return the real block size in the MTIOCGET ioctl.
- * Some error recovery bug fixes.
- * Ver 1.10 Nov 5 96 Major reorganization.
- * Reduced CPU overhead a bit by eliminating internal
- * bounce buffers.
- * Added module support.
- * Added multiple tape drives support.
- * Added partition support.
- * Rewrote DSC handling.
- * Some portability fixes.
- * Removed ide-tape.h.
- * Additional minor changes.
- * Ver 1.11 Dec 2 96 Bug fix in previous DSC timeout handling.
- * Use ide_stall_queue() for DSC overlap.
- * Use the maximum speed rather than the current speed
- * to compute the request service time.
- * Ver 1.12 Dec 7 97 Fix random memory overwriting and/or last block data
- * corruption, which could occur if the total number
- * of bytes written to the tape was not an integral
- * number of tape blocks.
- * Add support for INTERRUPT DRQ devices.
- * Ver 1.13 Jan 2 98 Add "speed == 0" work-around for HP COLORADO 5GB
- * Ver 1.14 Dec 30 98 Partial fixes for the Sony/AIWA tape drives.
- * Replace cli()/sti() with hwgroup spinlocks.
- * Ver 1.15 Mar 25 99 Fix SMP race condition by replacing hwgroup
- * spinlock with private per-tape spinlock.
- * Ver 1.16 Sep 1 99 Add OnStream tape support.
- * Abort read pipeline on EOD.
- * Wait for the tape to become ready in case it returns
- * "in the process of becoming ready" on open().
- * Fix zero padding of the last written block in
- * case the tape block size is larger than PAGE_SIZE.
- * Decrease the default disconnection time to tn.
- * Ver 1.16e Oct 3 99 Minor fixes.
- * Ver 1.16e1 Oct 13 99 Patches by Arnold Niessen,
- * niessen@iae.nl / arnold.niessen@philips.com
- * GO-1) Undefined code in idetape_read_position
- * according to Gadi's email
- * AJN-1) Minor fix asc == 11 should be asc == 0x11
- * in idetape_issue_packet_command (did effect
- * debugging output only)
- * AJN-2) Added more debugging output, and
- * added ide-tape: where missing. I would also
- * like to add tape->name where possible
- * AJN-3) Added different debug_level's
- * via /proc/ide/hdc/settings
- * "debug_level" determines amount of debugging output;
- * can be changed using /proc/ide/hdx/settings
- * 0 : almost no debugging output
- * 1 : 0+output errors only
- * 2 : 1+output all sensekey/asc
- * 3 : 2+follow all chrdev related procedures
- * 4 : 3+follow all procedures
- * 5 : 4+include pc_stack rq_stack info
- * 6 : 5+USE_COUNT updates
- * AJN-4) Fixed timeout for retension in idetape_queue_pc_tail
- * from 5 to 10 minutes
- * AJN-5) Changed maximum number of blocks to skip when
- * reading tapes with multiple consecutive write
- * errors from 100 to 1000 in idetape_get_logical_blk
- * Proposed changes to code:
- * 1) output "logical_blk_num" via /proc
- * 2) output "current_operation" via /proc
- * 3) Either solve or document the fact that `mt rewind' is
- * required after reading from /dev/nhtx to be
- * able to rmmod the idetape module;
- * Also, sometimes an application finishes but the
- * device remains `busy' for some time. Same cause ?
- * Proposed changes to release-notes:
- * 4) write a simple `quickstart' section in the
- * release notes; I volunteer if you don't want to
- * 5) include a pointer to video4linux in the doc
- * to stimulate video applications
- * 6) release notes lines 331 and 362: explain what happens
- * if the application data rate is higher than 1100 KB/s;
- * similar approach to lower-than-500 kB/s ?
- * 7) 6.6 Comparison; wouldn't it be better to allow different
- * strategies for read and write ?
- * Wouldn't it be better to control the tape buffer
- * contents instead of the bandwidth ?
- * 8) line 536: replace will by would (if I understand
- * this section correctly, a hypothetical and unwanted situation
- * is being described)
- * Ver 1.16f Dec 15 99 Change place of the secondary OnStream header frames.
- * Ver 1.17 Nov 2000 / Jan 2001 Marcel Mol, marcel@mesa.nl
- * - Add idetape_onstream_mode_sense_tape_parameter_page
- * function to get tape capacity in frames: tape->capacity.
- * - Add support for DI-50 drives( or any DI- drive).
- * - 'workaround' for read error/blank block around block 3000.
- * - Implement Early warning for end of media for Onstream.
- * - Cosmetic code changes for readability.
- * - Idetape_position_tape should not use SKIP bit during
- * Onstream read recovery.
- * - Add capacity, logical_blk_num and first/last_frame_position
- * to /proc/ide/hd?/settings.
- * - Module use count was gone in the Linux 2.4 driver.
- * Ver 1.17a Apr 2001 Willem Riede osst@riede.org
- * - Get drive's actual block size from mode sense block descriptor
- * - Limit size of pipeline
- * Ver 1.17b Oct 2002 Alan Stern <stern@rowland.harvard.edu>
- * Changed IDETAPE_MIN_PIPELINE_STAGES to 1 and actually used
- * it in the code!
- * Actually removed aborted stages in idetape_abort_pipeline
- * instead of just changing the command code.
- * Made the transfer byte count for Request Sense equal to the
- * actual length of the data transfer.
- * Changed handling of partial data transfers: they do not
- * cause DMA errors.
- * Moved initiation of DMA transfers to the correct place.
- * Removed reference to unallocated memory.
- * Made __idetape_discard_read_pipeline return the number of
- * sectors skipped, not the number of stages.
- * Replaced errant kfree() calls with __idetape_kfree_stage().
- * Fixed off-by-one error in testing the pipeline length.
- * Fixed handling of filemarks in the read pipeline.
- * Small code optimization for MTBSF and MTBSFM ioctls.
- * Don't try to unlock the door during device close if is
- * already unlocked!
- * Cosmetic fixes to miscellaneous debugging output messages.
- * Set the minimum /proc/ide/hd?/settings values for "pipeline",
- * "pipeline_min", and "pipeline_max" to 1.
- *
- * Here are some words from the first releases of hd.c, which are quoted
- * in ide.c and apply here as well:
- *
- * | Special care is recommended. Have Fun!
*
- */
-
-/*
- * An overview of the pipelined operation mode.
- *
- * In the pipelined write mode, we will usually just add requests to our
- * pipeline and return immediately, before we even start to service them. The
- * user program will then have enough time to prepare the next request while
- * we are still busy servicing previous requests. In the pipelined read mode,
- * the situation is similar - we add read-ahead requests into the pipeline,
- * before the user even requested them.
- *
- * The pipeline can be viewed as a "safety net" which will be activated when
- * the system load is high and prevents the user backup program from keeping up
- * with the current tape speed. At this point, the pipeline will get
- * shorter and shorter but the tape will still be streaming at the same speed.
- * Assuming we have enough pipeline stages, the system load will hopefully
- * decrease before the pipeline is completely empty, and the backup program
- * will be able to "catch up" and refill the pipeline again.
- *
- * When using the pipelined mode, it would be best to disable any type of
- * buffering done by the user program, as ide-tape already provides all the
- * benefits in the kernel, where it can be done in a more efficient way.
- * As we will usually not block the user program on a request, the most
- * efficient user code will then be a simple read-write-read-... cycle.
- * Any additional logic will usually just slow down the backup process.
- *
- * Using the pipelined mode, I get a constant over 400 KBps throughput,
- * which seems to be the maximum throughput supported by my tape.
- *
- * However, there are some downfalls:
- *
- * 1. We use memory (for data buffers) in proportional to the number
- * of pipeline stages (each stage is about 26 KB with my tape).
- * 2. In the pipelined write mode, we cheat and postpone error codes
- * to the user task. In read mode, the actual tape position
- * will be a bit further than the last requested block.
- *
- * Concerning (1):
- *
- * 1. We allocate stages dynamically only when we need them. When
- * we don't need them, we don't consume additional memory. In
- * case we can't allocate stages, we just manage without them
- * (at the expense of decreased throughput) so when Linux is
- * tight in memory, we will not pose additional difficulties.
- *
- * 2. The maximum number of stages (which is, in fact, the maximum
- * amount of memory) which we allocate is limited by the compile
- * time parameter IDETAPE_MAX_PIPELINE_STAGES.
- *
- * 3. The maximum number of stages is a controlled parameter - We
- * don't start from the user defined maximum number of stages
- * but from the lower IDETAPE_MIN_PIPELINE_STAGES (again, we
- * will not even allocate this amount of stages if the user
- * program can't handle the speed). We then implement a feedback
- * loop which checks if the pipeline is empty, and if it is, we
- * increase the maximum number of stages as necessary until we
- * reach the optimum value which just manages to keep the tape
- * busy with minimum allocated memory or until we reach
- * IDETAPE_MAX_PIPELINE_STAGES.
- *
- * Concerning (2):
- *
- * In pipelined write mode, ide-tape can not return accurate error codes
- * to the user program since we usually just add the request to the
- * pipeline without waiting for it to be serviced. In case an error
- * occurs, I will report it on the next user request.
- *
- * In the pipelined read mode, subsequent read requests or forward
- * filemark spacing will perform correctly, as we preserve all blocks
- * and filemarks which we encountered during our excess read-ahead.
- *
- * For accurate tape positioning and error reporting, disabling
- * pipelined mode might be the best option.
- *
- * You can enable/disable/tune the pipelined operation mode by adjusting
- * the compile time parameters below.
- */
-
-/*
- * Possible improvements.
- *
- * 1. Support for the ATAPI overlap protocol.
- *
- * In order to maximize bus throughput, we currently use the DSC
- * overlap method which enables ide.c to service requests from the
- * other device while the tape is busy executing a command. The
- * DSC overlap method involves polling the tape's status register
- * for the DSC bit, and servicing the other device while the tape
- * isn't ready.
- *
- * In the current QIC development standard (December 1995),
- * it is recommended that new tape drives will *in addition*
- * implement the ATAPI overlap protocol, which is used for the
- * same purpose - efficient use of the IDE bus, but is interrupt
- * driven and thus has much less CPU overhead.
- *
- * ATAPI overlap is likely to be supported in most new ATAPI
- * devices, including new ATAPI cdroms, and thus provides us
- * a method by which we can achieve higher throughput when
- * sharing a (fast) ATA-2 disk with any (slow) new ATAPI device.
+ * For a historical changelog see
+ * Documentation/ide/ChangeLog.ide-tape.1995-2002
*/
#define IDETAPE_VERSION "1.19"
#include <linux/completion.h>
#include <linux/bitops.h>
#include <linux/mutex.h>
+#include <scsi/scsi.h>
#include <asm/byteorder.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/unaligned.h>
-
-/*
- * partition
- */
-typedef struct os_partition_s {
- __u8 partition_num;
- __u8 par_desc_ver;
- __u16 wrt_pass_cntr;
- __u32 first_frame_addr;
- __u32 last_frame_addr;
- __u32 eod_frame_addr;
-} os_partition_t;
-
-/*
- * DAT entry
- */
-typedef struct os_dat_entry_s {
- __u32 blk_sz;
- __u16 blk_cnt;
- __u8 flags;
- __u8 reserved;
-} os_dat_entry_t;
-
-/*
- * DAT
- */
-#define OS_DAT_FLAGS_DATA (0xc)
-#define OS_DAT_FLAGS_MARK (0x1)
-
-typedef struct os_dat_s {
- __u8 dat_sz;
- __u8 reserved1;
- __u8 entry_cnt;
- __u8 reserved3;
- os_dat_entry_t dat_list[16];
-} os_dat_t;
-
#include <linux/mtio.h>
/**************************** Tunable parameters *****************************/
/*
* The following are used to debug the driver:
*
- * Setting IDETAPE_DEBUG_INFO to 1 will report device capabilities.
* Setting IDETAPE_DEBUG_LOG to 1 will log driver flow control.
- * Setting IDETAPE_DEBUG_BUGS to 1 will enable self-sanity checks in
- * some places.
*
* Setting them to 0 will restore normal operation mode:
*
* is verified to be stable enough. This will make it much more
* esthetic.
*/
-#define IDETAPE_DEBUG_INFO 0
#define IDETAPE_DEBUG_LOG 0
-#define IDETAPE_DEBUG_BUGS 1
/*
* After each failed packet command we issue a request sense command
/* Data direction */
#define PC_WRITING 5
-/*
- * Capabilities and Mechanical Status Page
- */
-typedef struct {
- unsigned page_code :6; /* Page code - Should be 0x2a */
- __u8 reserved0_6 :1;
- __u8 ps :1; /* parameters saveable */
- __u8 page_length; /* Page Length - Should be 0x12 */
- __u8 reserved2, reserved3;
- unsigned ro :1; /* Read Only Mode */
- unsigned reserved4_1234 :4;
- unsigned sprev :1; /* Supports SPACE in the reverse direction */
- unsigned reserved4_67 :2;
- unsigned reserved5_012 :3;
- unsigned efmt :1; /* Supports ERASE command initiated formatting */
- unsigned reserved5_4 :1;
- unsigned qfa :1; /* Supports the QFA two partition formats */
- unsigned reserved5_67 :2;
- unsigned lock :1; /* Supports locking the volume */
- unsigned locked :1; /* The volume is locked */
- unsigned prevent :1; /* The device defaults in the prevent state after power up */
- unsigned eject :1; /* The device can eject the volume */
- __u8 disconnect :1; /* The device can break request > ctl */
- __u8 reserved6_5 :1;
- unsigned ecc :1; /* Supports error correction */
- unsigned cmprs :1; /* Supports data compression */
- unsigned reserved7_0 :1;
- unsigned blk512 :1; /* Supports 512 bytes block size */
- unsigned blk1024 :1; /* Supports 1024 bytes block size */
- unsigned reserved7_3_6 :4;
- unsigned blk32768 :1; /* slowb - the device restricts the byte count for PIO */
- /* transfers for slow buffer memory ??? */
- /* Also 32768 block size in some cases */
- __u16 max_speed; /* Maximum speed supported in KBps */
- __u8 reserved10, reserved11;
- __u16 ctl; /* Continuous Transfer Limit in blocks */
- __u16 speed; /* Current Speed, in KBps */
- __u16 buffer_size; /* Buffer Size, in 512 bytes */
- __u8 reserved18, reserved19;
-} idetape_capabilities_page_t;
-
-/*
- * Block Size Page
- */
-typedef struct {
- unsigned page_code :6; /* Page code - Should be 0x30 */
- unsigned reserved1_6 :1;
- unsigned ps :1;
- __u8 page_length; /* Page Length - Should be 2 */
- __u8 reserved2;
- unsigned play32 :1;
- unsigned play32_5 :1;
- unsigned reserved2_23 :2;
- unsigned record32 :1;
- unsigned record32_5 :1;
- unsigned reserved2_6 :1;
- unsigned one :1;
-} idetape_block_size_page_t;
-
/*
* A pipeline stage.
*/
struct idetape_stage_s *next; /* Pointer to the next stage */
} idetape_stage_t;
-/*
- * REQUEST SENSE packet command result - Data Format.
- */
-typedef struct {
- unsigned error_code :7; /* Current of deferred errors */
- unsigned valid :1; /* The information field conforms to QIC-157C */
- __u8 reserved1 :8; /* Segment Number - Reserved */
- unsigned sense_key :4; /* Sense Key */
- unsigned reserved2_4 :1; /* Reserved */
- unsigned ili :1; /* Incorrect Length Indicator */
- unsigned eom :1; /* End Of Medium */
- unsigned filemark :1; /* Filemark */
- __u32 information __attribute__ ((packed));
- __u8 asl; /* Additional sense length (n-7) */
- __u32 command_specific; /* Additional command specific information */
- __u8 asc; /* Additional Sense Code */
- __u8 ascq; /* Additional Sense Code Qualifier */
- __u8 replaceable_unit_code; /* Field Replaceable Unit Code */
- unsigned sk_specific1 :7; /* Sense Key Specific */
- unsigned sksv :1; /* Sense Key Specific information is valid */
- __u8 sk_specific2; /* Sense Key Specific */
- __u8 sk_specific3; /* Sense Key Specific */
- __u8 pad[2]; /* Padding to 20 bytes */
-} idetape_request_sense_result_t;
-
-
/*
* Most of our global data which we need to save even as we leave the
* driver due to an interrupt or a timer event is stored in a variable
/* Usually 512 or 1024 bytes */
unsigned short tape_block_size;
int user_bs_factor;
+
/* Copy of the tape's Capabilities and Mechanical Page */
- idetape_capabilities_page_t capabilities;
+ u8 caps[20];
/*
* Active data transfer request parameters.
int avg_size;
int avg_speed;
- /* last sense information */
- idetape_request_sense_result_t sense;
-
char vendor_id[10];
char product_id[18];
char firmware_revision[6];
/* 0 = no tape is loaded, so we don't rewind after ejecting */
#define IDETAPE_MEDIUM_PRESENT 9
-/*
- * Supported ATAPI tape drives packet commands
- */
-#define IDETAPE_TEST_UNIT_READY_CMD 0x00
-#define IDETAPE_REWIND_CMD 0x01
-#define IDETAPE_REQUEST_SENSE_CMD 0x03
-#define IDETAPE_READ_CMD 0x08
-#define IDETAPE_WRITE_CMD 0x0a
-#define IDETAPE_WRITE_FILEMARK_CMD 0x10
-#define IDETAPE_SPACE_CMD 0x11
-#define IDETAPE_INQUIRY_CMD 0x12
-#define IDETAPE_ERASE_CMD 0x19
-#define IDETAPE_MODE_SENSE_CMD 0x1a
-#define IDETAPE_MODE_SELECT_CMD 0x15
-#define IDETAPE_LOAD_UNLOAD_CMD 0x1b
-#define IDETAPE_PREVENT_CMD 0x1e
-#define IDETAPE_LOCATE_CMD 0x2b
-#define IDETAPE_READ_POSITION_CMD 0x34
-#define IDETAPE_READ_BUFFER_CMD 0x3c
-#define IDETAPE_SET_SPEED_CMD 0xbb
-
/*
* Some defines for the READ BUFFER command
*/
unsigned protocol :2; /* Protocol type */
};
-/*
- * INQUIRY packet command - Data Format (From Table 6-8 of QIC-157C)
- */
-typedef struct {
- unsigned device_type :5; /* Peripheral Device Type */
- unsigned reserved0_765 :3; /* Peripheral Qualifier - Reserved */
- unsigned reserved1_6t0 :7; /* Reserved */
- unsigned rmb :1; /* Removable Medium Bit */
- unsigned ansi_version :3; /* ANSI Version */
- unsigned ecma_version :3; /* ECMA Version */
- unsigned iso_version :2; /* ISO Version */
- unsigned response_format :4; /* Response Data Format */
- unsigned reserved3_45 :2; /* Reserved */
- unsigned reserved3_6 :1; /* TrmIOP - Reserved */
- unsigned reserved3_7 :1; /* AENC - Reserved */
- __u8 additional_length; /* Additional Length (total_length-4) */
- __u8 rsv5, rsv6, rsv7; /* Reserved */
- __u8 vendor_id[8]; /* Vendor Identification */
- __u8 product_id[16]; /* Product Identification */
- __u8 revision_level[4]; /* Revision Level */
- __u8 vendor_specific[20]; /* Vendor Specific - Optional */
- __u8 reserved56t95[40]; /* Reserved - Optional */
- /* Additional information may be returned */
-} idetape_inquiry_result_t;
-
/*
* READ POSITION packet command - Data Format (From Table 6-57)
*/
u32 bytes_in_buffer; /* Bytes In Buffer (Optional) */
} idetape_read_position_result_t;
-/*
- * Follows structures which are related to the SELECT SENSE / MODE SENSE
- * packet commands. Those packet commands are still not supported
- * by ide-tape.
- */
+/* Structures related to the SELECT SENSE / MODE SENSE packet commands. */
#define IDETAPE_BLOCK_DESCRIPTOR 0
#define IDETAPE_CAPABILITIES_PAGE 0x2a
-#define IDETAPE_PARAMTR_PAGE 0x2b /* Onstream DI-x0 only */
-#define IDETAPE_BLOCK_SIZE_PAGE 0x30
-#define IDETAPE_BUFFER_FILLING_PAGE 0x33
-
-/*
- * Mode Parameter Header for the MODE SENSE packet command
- */
-typedef struct {
- __u8 mode_data_length; /* Length of the following data transfer */
- __u8 medium_type; /* Medium Type */
- __u8 dsp; /* Device Specific Parameter */
- __u8 bdl; /* Block Descriptor Length */
-#if 0
- /* data transfer page */
- __u8 page_code :6;
- __u8 reserved0_6 :1;
- __u8 ps :1; /* parameters saveable */
- __u8 page_length; /* page Length == 0x02 */
- __u8 reserved2;
- __u8 read32k :1; /* 32k blk size (data only) */
- __u8 read32k5 :1; /* 32.5k blk size (data&AUX) */
- __u8 reserved3_23 :2;
- __u8 write32k :1; /* 32k blk size (data only) */
- __u8 write32k5 :1; /* 32.5k blk size (data&AUX) */
- __u8 reserved3_6 :1;
- __u8 streaming :1; /* streaming mode enable */
-#endif
-} idetape_mode_parameter_header_t;
-
-/*
- * Mode Parameter Block Descriptor the MODE SENSE packet command
- *
- * Support for block descriptors is optional.
- */
-typedef struct {
- __u8 density_code; /* Medium density code */
- __u8 blocks[3]; /* Number of blocks */
- __u8 reserved4; /* Reserved */
- __u8 length[3]; /* Block Length */
-} idetape_parameter_block_descriptor_t;
-
-/*
- * The Data Compression Page, as returned by the MODE SENSE packet command.
- */
-typedef struct {
- unsigned page_code :6; /* Page Code - Should be 0xf */
- unsigned reserved0 :1; /* Reserved */
- unsigned ps :1;
- __u8 page_length; /* Page Length - Should be 14 */
- unsigned reserved2 :6; /* Reserved */
- unsigned dcc :1; /* Data Compression Capable */
- unsigned dce :1; /* Data Compression Enable */
- unsigned reserved3 :5; /* Reserved */
- unsigned red :2; /* Report Exception on Decompression */
- unsigned dde :1; /* Data Decompression Enable */
- __u32 ca; /* Compression Algorithm */
- __u32 da; /* Decompression Algorithm */
- __u8 reserved[4]; /* Reserved */
-} idetape_data_compression_page_t;
-
-/*
- * The Medium Partition Page, as returned by the MODE SENSE packet command.
- */
-typedef struct {
- unsigned page_code :6; /* Page Code - Should be 0x11 */
- unsigned reserved1_6 :1; /* Reserved */
- unsigned ps :1;
- __u8 page_length; /* Page Length - Should be 6 */
- __u8 map; /* Maximum Additional Partitions - Should be 0 */
- __u8 apd; /* Additional Partitions Defined - Should be 0 */
- unsigned reserved4_012 :3; /* Reserved */
- unsigned psum :2; /* Should be 0 */
- unsigned idp :1; /* Should be 0 */
- unsigned sdp :1; /* Should be 0 */
- unsigned fdp :1; /* Fixed Data Partitions */
- __u8 mfr; /* Medium Format Recognition */
- __u8 reserved[2]; /* Reserved */
-} idetape_medium_partition_page_t;
-
-/*
- * Run time configurable parameters.
- */
-typedef struct {
- int dsc_rw_frequency;
- int dsc_media_access_frequency;
- int nr_stages;
-} idetape_config_t;
/*
* The variables below are used for the character device interface.
int count;
while (bcount) {
-#if IDETAPE_DEBUG_BUGS
if (bh == NULL) {
printk(KERN_ERR "ide-tape: bh == NULL in "
"idetape_input_buffers\n");
idetape_discard_data(drive, bcount);
return;
}
-#endif /* IDETAPE_DEBUG_BUGS */
count = min((unsigned int)(bh->b_size - atomic_read(&bh->b_count)), bcount);
HWIF(drive)->atapi_input_bytes(drive, bh->b_data + atomic_read(&bh->b_count), count);
bcount -= count;
int count;
while (bcount) {
-#if IDETAPE_DEBUG_BUGS
if (bh == NULL) {
printk(KERN_ERR "ide-tape: bh == NULL in "
"idetape_output_buffers\n");
return;
}
-#endif /* IDETAPE_DEBUG_BUGS */
count = min((unsigned int)pc->b_count, (unsigned int)bcount);
HWIF(drive)->atapi_output_bytes(drive, pc->b_data, count);
bcount -= count;
if (test_bit(PC_WRITING, &pc->flags))
return;
while (bcount) {
-#if IDETAPE_DEBUG_BUGS
if (bh == NULL) {
printk(KERN_ERR "ide-tape: bh == NULL in "
"idetape_update_buffers\n");
return;
}
-#endif /* IDETAPE_DEBUG_BUGS */
count = min((unsigned int)bh->b_size, (unsigned int)bcount);
atomic_set(&bh->b_count, count);
if (atomic_read(&bh->b_count) == bh->b_size)
}
/*
- * idetape_analyze_error is called on each failed packet command retry
- * to analyze the request sense. We currently do not utilize this
- * information.
+ * called on each failed packet command retry to analyze the request sense. We
+ * currently do not utilize this information.
*/
-static void idetape_analyze_error (ide_drive_t *drive, idetape_request_sense_result_t *result)
+static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
{
idetape_tape_t *tape = drive->driver_data;
idetape_pc_t *pc = tape->failed_pc;
- tape->sense = *result;
- tape->sense_key = result->sense_key;
- tape->asc = result->asc;
- tape->ascq = result->ascq;
+ tape->sense_key = sense[2] & 0xF;
+ tape->asc = sense[12];
+ tape->ascq = sense[13];
#if IDETAPE_DEBUG_LOG
/*
- * Without debugging, we only log an error if we decided to
- * give up retrying.
+ * Without debugging, we only log an error if we decided to give up
+ * retrying.
*/
if (tape->debug_level >= 1)
printk(KERN_INFO "ide-tape: pc = %x, sense key = %x, "
"asc = %x, ascq = %x\n",
- pc->c[0], result->sense_key,
- result->asc, result->ascq);
+ pc->c[0], tape->sense_key,
+ tape->asc, tape->ascq);
#endif /* IDETAPE_DEBUG_LOG */
- /*
- * Correct pc->actually_transferred by asking the tape.
- */
+ /* Correct pc->actually_transferred by asking the tape. */
if (test_bit(PC_DMA_ERROR, &pc->flags)) {
- pc->actually_transferred = pc->request_transfer - tape->tape_block_size * ntohl(get_unaligned(&result->information));
+ pc->actually_transferred = pc->request_transfer -
+ tape->tape_block_size *
+ be32_to_cpu(get_unaligned((u32 *)&sense[3]));
idetape_update_buffers(pc);
}
* with sense key=5, asc=0x22, ascq=0, let it slide. Some drives
* (i.e. Seagate STT3401A Travan) don't support 0-length read/writes.
*/
- if ((pc->c[0] == IDETAPE_READ_CMD || pc->c[0] == IDETAPE_WRITE_CMD)
- && pc->c[4] == 0 && pc->c[3] == 0 && pc->c[2] == 0) { /* length==0 */
- if (result->sense_key == 5) {
+ if ((pc->c[0] == READ_6 || pc->c[0] == WRITE_6)
+ /* length == 0 */
+ && pc->c[4] == 0 && pc->c[3] == 0 && pc->c[2] == 0) {
+ if (tape->sense_key == 5) {
/* don't report an error, everything's ok */
pc->error = 0;
/* don't retry read/write */
set_bit(PC_ABORT, &pc->flags);
}
}
- if (pc->c[0] == IDETAPE_READ_CMD && result->filemark) {
+ if (pc->c[0] == READ_6 && (sense[2] & 0x80)) {
pc->error = IDETAPE_ERROR_FILEMARK;
set_bit(PC_ABORT, &pc->flags);
}
- if (pc->c[0] == IDETAPE_WRITE_CMD) {
- if (result->eom ||
- (result->sense_key == 0xd && result->asc == 0x0 &&
- result->ascq == 0x2)) {
+ if (pc->c[0] == WRITE_6) {
+ if ((sense[2] & 0x40) || (tape->sense_key == 0xd
+ && tape->asc == 0x0 && tape->ascq == 0x2)) {
pc->error = IDETAPE_ERROR_EOD;
set_bit(PC_ABORT, &pc->flags);
}
}
- if (pc->c[0] == IDETAPE_READ_CMD || pc->c[0] == IDETAPE_WRITE_CMD) {
- if (result->sense_key == 8) {
+ if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) {
+ if (tape->sense_key == 8) {
pc->error = IDETAPE_ERROR_EOD;
set_bit(PC_ABORT, &pc->flags);
}
}
}
-/*
- * idetape_active_next_stage will declare the next stage as "active".
- */
-static void idetape_active_next_stage (ide_drive_t *drive)
+static void idetape_activate_next_stage(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
idetape_stage_t *stage = tape->next_stage;
if (tape->debug_level >= 4)
printk(KERN_INFO "ide-tape: Reached idetape_active_next_stage\n");
#endif /* IDETAPE_DEBUG_LOG */
-#if IDETAPE_DEBUG_BUGS
if (stage == NULL) {
printk(KERN_ERR "ide-tape: bug: Trying to activate a non existing stage\n");
return;
}
-#endif /* IDETAPE_DEBUG_BUGS */
rq->rq_disk = tape->disk;
rq->buffer = NULL;
if (tape->debug_level >= 4)
printk(KERN_INFO "ide-tape: Reached idetape_remove_stage_head\n");
#endif /* IDETAPE_DEBUG_LOG */
-#if IDETAPE_DEBUG_BUGS
if (tape->first_stage == NULL) {
printk(KERN_ERR "ide-tape: bug: tape->first_stage is NULL\n");
- return;
+ return;
}
if (tape->active_stage == tape->first_stage) {
printk(KERN_ERR "ide-tape: bug: Trying to free our active pipeline stage\n");
return;
}
-#endif /* IDETAPE_DEBUG_BUGS */
stage = tape->first_stage;
tape->first_stage = stage->next;
idetape_kfree_stage(tape, stage);
tape->nr_stages--;
if (tape->first_stage == NULL) {
tape->last_stage = NULL;
-#if IDETAPE_DEBUG_BUGS
if (tape->next_stage != NULL)
printk(KERN_ERR "ide-tape: bug: tape->next_stage != NULL\n");
if (tape->nr_stages)
printk(KERN_ERR "ide-tape: bug: nr_stages should be 0 now\n");
-#endif /* IDETAPE_DEBUG_BUGS */
}
}
}
}
if (tape->next_stage != NULL) {
- idetape_active_next_stage(drive);
+ idetape_activate_next_stage(drive);
/*
* Insert the next request into the request queue.
printk(KERN_INFO "ide-tape: Reached idetape_request_sense_callback\n");
#endif /* IDETAPE_DEBUG_LOG */
if (!tape->pc->error) {
- idetape_analyze_error(drive, (idetape_request_sense_result_t *) tape->pc->buffer);
+ idetape_analyze_error(drive, tape->pc->buffer);
idetape_end_request(drive, 1, 0);
} else {
printk(KERN_ERR "ide-tape: Error in REQUEST SENSE itself - Aborting request!\n");
static void idetape_create_request_sense_cmd (idetape_pc_t *pc)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_REQUEST_SENSE_CMD;
+ pc->c[0] = REQUEST_SENSE;
pc->c[4] = 20;
pc->request_transfer = 20;
pc->callback = &idetape_request_sense_callback;
local_irq_enable();
#if SIMULATE_ERRORS
- if ((pc->c[0] == IDETAPE_WRITE_CMD ||
- pc->c[0] == IDETAPE_READ_CMD) &&
+ if ((pc->c[0] == WRITE_6 || pc->c[0] == READ_6) &&
(++error_sim_count % 100) == 0) {
printk(KERN_INFO "ide-tape: %s: simulating error\n",
tape->name);
stat |= ERR_STAT;
}
#endif
- if ((stat & ERR_STAT) && pc->c[0] == IDETAPE_REQUEST_SENSE_CMD)
+ if ((stat & ERR_STAT) && pc->c[0] == REQUEST_SENSE)
stat &= ~ERR_STAT;
if ((stat & ERR_STAT) || test_bit(PC_DMA_ERROR, &pc->flags)) {
/* Error detected */
printk(KERN_INFO "ide-tape: %s: I/O error\n",
tape->name);
#endif /* IDETAPE_DEBUG_LOG */
- if (pc->c[0] == IDETAPE_REQUEST_SENSE_CMD) {
+ if (pc->c[0] == REQUEST_SENSE) {
printk(KERN_ERR "ide-tape: I/O error in request sense command\n");
return ide_do_reset(drive);
}
int dma_ok = 0;
u16 bcount;
-#if IDETAPE_DEBUG_BUGS
- if (tape->pc->c[0] == IDETAPE_REQUEST_SENSE_CMD &&
- pc->c[0] == IDETAPE_REQUEST_SENSE_CMD) {
+ if (tape->pc->c[0] == REQUEST_SENSE &&
+ pc->c[0] == REQUEST_SENSE) {
printk(KERN_ERR "ide-tape: possible ide-tape.c bug - "
"Two request sense in serial were issued\n");
}
-#endif /* IDETAPE_DEBUG_BUGS */
- if (tape->failed_pc == NULL && pc->c[0] != IDETAPE_REQUEST_SENSE_CMD)
+ if (tape->failed_pc == NULL && pc->c[0] != REQUEST_SENSE)
tape->failed_pc = pc;
/* Set the current packet command */
tape->pc = pc;
* filemark, or end of the media, for example).
*/
if (!test_bit(PC_ABORT, &pc->flags)) {
- if (!(pc->c[0] == IDETAPE_TEST_UNIT_READY_CMD &&
+ if (!(pc->c[0] == TEST_UNIT_READY &&
tape->sense_key == 2 && tape->asc == 4 &&
(tape->ascq == 1 || tape->ascq == 8))) {
printk(KERN_ERR "ide-tape: %s: I/O error, "
if (dma_ok) /* Will begin DMA later */
set_bit(PC_DMA_IN_PROGRESS, &pc->flags);
if (test_bit(IDETAPE_DRQ_INTERRUPT, &tape->flags)) {
- ide_set_handler(drive, &idetape_transfer_pc, IDETAPE_WAIT_CMD, NULL);
- hwif->OUTB(WIN_PACKETCMD, IDE_COMMAND_REG);
+ ide_execute_command(drive, WIN_PACKETCMD, &idetape_transfer_pc,
+ IDETAPE_WAIT_CMD, NULL);
return ide_started;
} else {
hwif->OUTB(WIN_PACKETCMD, IDE_COMMAND_REG);
static void idetape_create_mode_sense_cmd (idetape_pc_t *pc, u8 page_code)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_MODE_SENSE_CMD;
+ pc->c[0] = MODE_SENSE;
if (page_code != IDETAPE_BLOCK_DESCRIPTOR)
pc->c[1] = 8; /* DBD = 1 - Don't return block descriptors */
pc->c[2] = page_code;
if (stat & SEEK_STAT) {
if (stat & ERR_STAT) {
/* Error detected */
- if (pc->c[0] != IDETAPE_TEST_UNIT_READY_CMD)
+ if (pc->c[0] != TEST_UNIT_READY)
printk(KERN_ERR "ide-tape: %s: I/O error, ",
tape->name);
/* Retry operation */
static void idetape_create_read_cmd(idetape_tape_t *tape, idetape_pc_t *pc, unsigned int length, struct idetape_bh *bh)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_READ_CMD;
- put_unaligned(htonl(length), (unsigned int *) &pc->c[1]);
+ pc->c[0] = READ_6;
+ put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]);
pc->c[1] = 1;
pc->callback = &idetape_rw_callback;
pc->bh = bh;
struct idetape_bh *p = bh;
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_READ_BUFFER_CMD;
+ pc->c[0] = READ_BUFFER;
pc->c[1] = IDETAPE_RETRIEVE_FAULTY_BLOCK;
pc->c[7] = size >> 8;
pc->c[8] = size & 0xff;
static void idetape_create_write_cmd(idetape_tape_t *tape, idetape_pc_t *pc, unsigned int length, struct idetape_bh *bh)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_WRITE_CMD;
- put_unaligned(htonl(length), (unsigned int *) &pc->c[1]);
+ pc->c[0] = WRITE_6;
+ put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]);
pc->c[1] = 1;
pc->callback = &idetape_rw_callback;
set_bit(PC_WRITING, &pc->flags);
u8 stat;
#if IDETAPE_DEBUG_LOG
-#if 0
- if (tape->debug_level >= 5)
- printk(KERN_INFO "ide-tape: %d, "
- "dev: %s, cmd: %ld, errors: %d\n",
- rq->rq_disk->disk_name, rq->cmd[0], rq->errors);
-#endif
if (tape->debug_level >= 2)
printk(KERN_INFO "ide-tape: sector: %ld, "
"nr_sectors: %ld, current_nr_sectors: %d\n",
* Retry a failed packet command
*/
if (tape->failed_pc != NULL &&
- tape->pc->c[0] == IDETAPE_REQUEST_SENSE_CMD) {
+ tape->pc->c[0] == REQUEST_SENSE) {
return idetape_issue_packet_command(drive, tape->failed_pc);
}
-#if IDETAPE_DEBUG_BUGS
if (postponed_rq != NULL)
if (rq != postponed_rq) {
printk(KERN_ERR "ide-tape: ide-tape.c bug - "
idetape_end_request(drive, 0, 0);
return ide_stopped;
}
-#endif /* IDETAPE_DEBUG_BUGS */
tape->postponed_rq = NULL;
int ret = 0;
while (n) {
-#if IDETAPE_DEBUG_BUGS
if (bh == NULL) {
printk(KERN_ERR "ide-tape: bh == NULL in "
"idetape_copy_stage_from_user\n");
return 1;
}
-#endif /* IDETAPE_DEBUG_BUGS */
count = min((unsigned int)(bh->b_size - atomic_read(&bh->b_count)), (unsigned int)n);
if (copy_from_user(bh->b_data + atomic_read(&bh->b_count), buf, count))
ret = 1;
int ret = 0;
while (n) {
-#if IDETAPE_DEBUG_BUGS
if (bh == NULL) {
printk(KERN_ERR "ide-tape: bh == NULL in "
"idetape_copy_stage_to_user\n");
return 1;
}
-#endif /* IDETAPE_DEBUG_BUGS */
count = min(tape->b_count, n);
if (copy_to_user(buf, tape->b_data, count))
ret = 1;
DECLARE_COMPLETION_ONSTACK(wait);
idetape_tape_t *tape = drive->driver_data;
-#if IDETAPE_DEBUG_BUGS
if (rq == NULL || !blk_special_request(rq)) {
printk (KERN_ERR "ide-tape: bug: Trying to sleep on non-valid request\n");
return;
}
-#endif /* IDETAPE_DEBUG_BUGS */
rq->end_io_data = &wait;
rq->end_io = blk_end_sync_rq;
spin_unlock_irq(&tape->spinlock);
static void idetape_create_write_filemark_cmd (ide_drive_t *drive, idetape_pc_t *pc,int write_filemark)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_WRITE_FILEMARK_CMD;
+ pc->c[0] = WRITE_FILEMARKS;
pc->c[4] = write_filemark;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
pc->callback = &idetape_pc_callback;
static void idetape_create_test_unit_ready_cmd(idetape_pc_t *pc)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_TEST_UNIT_READY_CMD;
+ pc->c[0] = TEST_UNIT_READY;
pc->callback = &idetape_pc_callback;
}
static void idetape_create_load_unload_cmd (ide_drive_t *drive, idetape_pc_t *pc,int cmd)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_LOAD_UNLOAD_CMD;
+ pc->c[0] = START_STOP;
pc->c[4] = cmd;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
pc->callback = &idetape_pc_callback;
static void idetape_create_read_position_cmd (idetape_pc_t *pc)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_READ_POSITION_CMD;
+ pc->c[0] = READ_POSITION;
pc->request_transfer = 20;
pc->callback = &idetape_read_position_callback;
}
static void idetape_create_locate_cmd (ide_drive_t *drive, idetape_pc_t *pc, unsigned int block, u8 partition, int skip)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_LOCATE_CMD;
+ pc->c[0] = POSITION_TO_ELEMENT;
pc->c[1] = 2;
- put_unaligned(htonl(block), (unsigned int *) &pc->c[3]);
+ put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[3]);
pc->c[8] = partition;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
pc->callback = &idetape_pc_callback;
{
idetape_tape_t *tape = drive->driver_data;
- if (!tape->capabilities.lock)
+ /* device supports locking according to capabilities page */
+ if (!(tape->caps[6] & 0x01))
return 0;
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_PREVENT_CMD;
+ pc->c[0] = ALLOW_MEDIUM_REMOVAL;
pc->c[4] = prevent;
pc->callback = &idetape_pc_callback;
return 1;
if (tape->debug_level >= 2)
printk(KERN_INFO "ide-tape: idetape_queue_rw_tail: cmd=%d\n",cmd);
#endif /* IDETAPE_DEBUG_LOG */
-#if IDETAPE_DEBUG_BUGS
if (idetape_pipeline_active(tape)) {
printk(KERN_ERR "ide-tape: bug: the pipeline is active in idetape_queue_rw_tail\n");
return (0);
}
-#endif /* IDETAPE_DEBUG_BUGS */
idetape_init_rq(&rq, cmd);
rq.rq_disk = tape->disk;
return;
if (!idetape_pipeline_active(tape)) {
set_bit(IDETAPE_PIPELINE_ACTIVE, &tape->flags);
- idetape_active_next_stage(drive);
+ idetape_activate_next_stage(drive);
(void) ide_do_drive_cmd(drive, tape->active_data_request, ide_end);
}
}
static void idetape_create_inquiry_cmd (idetape_pc_t *pc)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_INQUIRY_CMD;
+ pc->c[0] = INQUIRY;
pc->c[4] = pc->request_transfer = 254;
pc->callback = &idetape_pc_callback;
}
static void idetape_create_rewind_cmd (ide_drive_t *drive, idetape_pc_t *pc)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_REWIND_CMD;
+ pc->c[0] = REZERO_UNIT;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
pc->callback = &idetape_pc_callback;
}
-#if 0
-static void idetape_create_mode_select_cmd (idetape_pc_t *pc, int length)
-{
- idetape_init_pc(pc);
- set_bit(PC_WRITING, &pc->flags);
- pc->c[0] = IDETAPE_MODE_SELECT_CMD;
- pc->c[1] = 0x10;
- put_unaligned(htons(length), (unsigned short *) &pc->c[3]);
- pc->request_transfer = 255;
- pc->callback = &idetape_pc_callback;
-}
-#endif
-
static void idetape_create_erase_cmd (idetape_pc_t *pc)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_ERASE_CMD;
+ pc->c[0] = ERASE;
pc->c[1] = 1;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
pc->callback = &idetape_pc_callback;
static void idetape_create_space_cmd (idetape_pc_t *pc,int count, u8 cmd)
{
idetape_init_pc(pc);
- pc->c[0] = IDETAPE_SPACE_CMD;
- put_unaligned(htonl(count), (unsigned int *) &pc->c[1]);
+ pc->c[0] = SPACE;
+ put_unaligned(cpu_to_be32(count), (unsigned int *) &pc->c[1]);
pc->c[1] = cmd;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
pc->callback = &idetape_pc_callback;
idetape_tape_t *tape = drive->driver_data;
int blocks, min;
struct idetape_bh *bh;
-
-#if IDETAPE_DEBUG_BUGS
+
if (tape->chrdev_direction != idetape_direction_write) {
printk(KERN_ERR "ide-tape: bug: Trying to empty write pipeline, but we are not writing.\n");
return;
printk(KERN_ERR "ide-tape: bug: merge_buffer too big\n");
tape->merge_stage_size = tape->stage_size;
}
-#endif /* IDETAPE_DEBUG_BUGS */
if (tape->merge_stage_size) {
blocks = tape->merge_stage_size / tape->tape_block_size;
if (tape->merge_stage_size % tape->tape_block_size) {
* can be totally different on the next backup).
*/
tape->max_stages = tape->min_pipeline;
-#if IDETAPE_DEBUG_BUGS
if (tape->first_stage != NULL ||
tape->next_stage != NULL ||
tape->last_stage != NULL ||
tape->first_stage, tape->next_stage,
tape->last_stage, tape->nr_stages);
}
-#endif /* IDETAPE_DEBUG_BUGS */
}
static void idetape_restart_speed_control (ide_drive_t *drive)
idetape_stage_t *new_stage;
struct request rq;
int bytes_read;
- int blocks = tape->capabilities.ctl;
+ u16 blocks = *(u16 *)&tape->caps[12];
/* Initialize read operation */
if (tape->chrdev_direction != idetape_direction_read) {
idetape_empty_write_pipeline(drive);
idetape_flush_tape_buffers(drive);
}
-#if IDETAPE_DEBUG_BUGS
if (tape->merge_stage || tape->merge_stage_size) {
printk (KERN_ERR "ide-tape: merge_stage_size should be 0 now\n");
tape->merge_stage_size = 0;
}
-#endif /* IDETAPE_DEBUG_BUGS */
if ((tape->merge_stage = __idetape_kmalloc_stage(tape, 0, 0)) == NULL)
return -ENOMEM;
tape->chrdev_direction = idetape_direction_read;
tape->pipeline_head++;
calculate_speeds(drive);
}
-#if IDETAPE_DEBUG_BUGS
if (bytes_read > blocks * tape->tape_block_size) {
printk(KERN_ERR "ide-tape: bug: trying to return more bytes than requested\n");
bytes_read = blocks * tape->tape_block_size;
}
-#endif /* IDETAPE_DEBUG_BUGS */
return (bytes_read);
}
static int idetape_blkdev_ioctl(ide_drive_t *drive, unsigned int cmd, unsigned long arg)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_config_t config;
void __user *argp = (void __user *)arg;
+ struct idetape_config {
+ int dsc_rw_frequency;
+ int dsc_media_access_frequency;
+ int nr_stages;
+ } config;
+
#if IDETAPE_DEBUG_LOG
if (tape->debug_level >= 4)
printk(KERN_INFO "ide-tape: Reached idetape_blkdev_ioctl\n");
#endif /* IDETAPE_DEBUG_LOG */
switch (cmd) {
case 0x0340:
- if (copy_from_user(&config, argp, sizeof (idetape_config_t)))
+ if (copy_from_user(&config, argp, sizeof(config)))
return -EFAULT;
tape->best_dsc_rw_frequency = config.dsc_rw_frequency;
tape->max_stages = config.nr_stages;
case 0x0350:
config.dsc_rw_frequency = (int) tape->best_dsc_rw_frequency;
config.nr_stages = tape->max_stages;
- if (copy_to_user(argp, &config, sizeof (idetape_config_t)))
+ if (copy_to_user(argp, &config, sizeof(config)))
return -EFAULT;
break;
default:
idetape_pc_t pc;
unsigned long flags;
int retval,count=0;
+ int sprev = !!(tape->caps[4] & 0x20);
if (mt_count == 0)
return 0;
if (MTBSF == mt_op || MTBSFM == mt_op) {
- if (!tape->capabilities.sprev)
+ if (!sprev)
return -EIO;
mt_count = - mt_count;
}
return (idetape_queue_pc_tail(drive, &pc));
case MTFSFM:
case MTBSFM:
- if (!tape->capabilities.sprev)
+ if (!sprev)
return (-EIO);
retval = idetape_space_over_filemarks(drive, MTFSF, mt_count-count);
if (retval) return (retval);
ide_drive_t *drive = tape->drive;
ssize_t bytes_read,temp, actually_read = 0, rc;
ssize_t ret = 0;
+ u16 ctl = *(u16 *)&tape->caps[12];
#if IDETAPE_DEBUG_LOG
if (tape->debug_level >= 3)
count -= actually_read;
}
while (count >= tape->stage_size) {
- bytes_read = idetape_add_chrdev_read_request(drive, tape->capabilities.ctl);
+ bytes_read = idetape_add_chrdev_read_request(drive, ctl);
if (bytes_read <= 0)
goto finish;
if (idetape_copy_stage_to_user(tape, buf, tape->merge_stage, bytes_read))
actually_read += bytes_read;
}
if (count) {
- bytes_read = idetape_add_chrdev_read_request(drive, tape->capabilities.ctl);
+ bytes_read = idetape_add_chrdev_read_request(drive, ctl);
if (bytes_read <= 0)
goto finish;
temp = min((unsigned long)count, (unsigned long)bytes_read);
ide_drive_t *drive = tape->drive;
ssize_t actually_written = 0;
ssize_t ret = 0;
+ u16 ctl = *(u16 *)&tape->caps[12];
/* The drive is write protected. */
if (tape->write_prot)
if (tape->chrdev_direction != idetape_direction_write) {
if (tape->chrdev_direction == idetape_direction_read)
idetape_discard_read_pipeline(drive, 1);
-#if IDETAPE_DEBUG_BUGS
if (tape->merge_stage || tape->merge_stage_size) {
printk(KERN_ERR "ide-tape: merge_stage_size "
"should be 0 now\n");
tape->merge_stage_size = 0;
}
-#endif /* IDETAPE_DEBUG_BUGS */
if ((tape->merge_stage = __idetape_kmalloc_stage(tape, 0, 0)) == NULL)
return -ENOMEM;
tape->chrdev_direction = idetape_direction_write;
if (tape->restart_speed_control_req)
idetape_restart_speed_control(drive);
if (tape->merge_stage_size) {
-#if IDETAPE_DEBUG_BUGS
if (tape->merge_stage_size >= tape->stage_size) {
printk(KERN_ERR "ide-tape: bug: merge buffer too big\n");
tape->merge_stage_size = 0;
}
-#endif /* IDETAPE_DEBUG_BUGS */
actually_written = min((unsigned int)(tape->stage_size - tape->merge_stage_size), (unsigned int)count);
if (idetape_copy_stage_from_user(tape, tape->merge_stage, buf, actually_written))
ret = -EFAULT;
if (tape->merge_stage_size == tape->stage_size) {
ssize_t retval;
tape->merge_stage_size = 0;
- retval = idetape_add_chrdev_write_request(drive, tape->capabilities.ctl);
+ retval = idetape_add_chrdev_write_request(drive, ctl);
if (retval <= 0)
return (retval);
}
ret = -EFAULT;
buf += tape->stage_size;
count -= tape->stage_size;
- retval = idetape_add_chrdev_write_request(drive, tape->capabilities.ctl);
+ retval = idetape_add_chrdev_write_request(drive, ctl);
actually_written += tape->stage_size;
if (retval <= 0)
return (retval);
}
/*
- * idetape_mtioctop is called from idetape_chrdev_ioctl when
- * the general mtio MTIOCTOP ioctl is requested.
- *
- * We currently support the following mtio.h operations:
+ * Called from idetape_chrdev_ioctl when the general mtio MTIOCTOP ioctl is
+ * requested.
*
- * MTFSF - Space over mt_count filemarks in the positive direction.
- * The tape is positioned after the last spaced filemark.
+ * Note: MTBSF and MTBSFM are not supported when the tape doesn't support
+ * spacing over filemarks in the reverse direction. In this case, MTFSFM is also
+ * usually not supported (it is supported in the rare case in which we crossed
+ * the filemark during our read-ahead pipelined operation mode).
*
- * MTFSFM - Same as MTFSF, but the tape is positioned before the
- * last filemark.
+ * The following commands are currently not supported:
*
- * MTBSF - Steps background over mt_count filemarks, tape is
- * positioned before the last filemark.
- *
- * MTBSFM - Like MTBSF, only tape is positioned after the last filemark.
- *
- * Note:
- *
- * MTBSF and MTBSFM are not supported when the tape doesn't
- * support spacing over filemarks in the reverse direction.
- * In this case, MTFSFM is also usually not supported (it is
- * supported in the rare case in which we crossed the filemark
- * during our read-ahead pipelined operation mode).
- *
- * MTWEOF - Writes mt_count filemarks. Tape is positioned after
- * the last written filemark.
- *
- * MTREW - Rewinds tape.
- *
- * MTLOAD - Loads the tape.
- *
- * MTOFFL - Puts the tape drive "Offline": Rewinds the tape and
- * MTUNLOAD prevents further access until the media is replaced.
- *
- * MTNOP - Flushes tape buffers.
- *
- * MTRETEN - Retension media. This typically consists of one end
- * to end pass on the media.
- *
- * MTEOM - Moves to the end of recorded data.
- *
- * MTERASE - Erases tape.
- *
- * MTSETBLK - Sets the user block size to mt_count bytes. If
- * mt_count is 0, we will attempt to autodetect
- * the block size.
- *
- * MTSEEK - Positions the tape in a specific block number, where
- * each block is assumed to contain which user_block_size
- * bytes.
- *
- * MTSETPART - Switches to another tape partition.
- *
- * MTLOCK - Locks the tape door.
- *
- * MTUNLOCK - Unlocks the tape door.
- *
- * The following commands are currently not supported:
- *
- * MTFSS, MTBSS, MTWSM, MTSETDENSITY,
- * MTSETDRVBUFFER, MT_ST_BOOLEANS, MT_ST_WRITE_THRESHOLD.
+ * MTFSS, MTBSS, MTWSM, MTSETDENSITY, MTSETDRVBUFFER, MT_ST_BOOLEANS,
+ * MT_ST_WRITE_THRESHOLD.
*/
-static int idetape_mtioctop (ide_drive_t *drive,short mt_op,int mt_count)
+static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count)
{
idetape_tape_t *tape = drive->driver_data;
idetape_pc_t pc;
}
/*
- * Our character device ioctls.
- *
- * General mtio.h magnetic io commands are supported here, and not in
- * the corresponding block interface.
- *
- * The following ioctls are supported:
- *
- * MTIOCTOP - Refer to idetape_mtioctop for detailed description.
- *
- * MTIOCGET - The mt_dsreg field in the returned mtget structure
- * will be set to (user block size in bytes <<
- * MT_ST_BLKSIZE_SHIFT) & MT_ST_BLKSIZE_MASK.
- *
- * The mt_blkno is set to the current user block number.
- * The other mtget fields are not supported.
- *
- * MTIOCPOS - The current tape "block position" is returned. We
- * assume that each block contains user_block_size
- * bytes.
- *
- * Our own ide-tape ioctls are supported on both interfaces.
+ * Our character device ioctls. General mtio.h magnetic io commands are
+ * supported here, and not in the corresponding block interface. Our own
+ * ide-tape ioctls are supported on both interfaces.
*/
-static int idetape_chrdev_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static int idetape_chrdev_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
{
struct ide_tape_obj *tape = ide_tape_f(file);
ide_drive_t *drive = tape->drive;
}
}
-static void idetape_get_blocksize_from_block_descriptor(ide_drive_t *drive);
+/*
+ * Do a mode sense page 0 with block descriptor and if it succeeds set the tape
+ * block size with the reported value.
+ */
+static void ide_tape_get_bsize_from_bdesc(ide_drive_t *drive)
+{
+ idetape_tape_t *tape = drive->driver_data;
+ idetape_pc_t pc;
+
+ idetape_create_mode_sense_cmd(&pc, IDETAPE_BLOCK_DESCRIPTOR);
+ if (idetape_queue_pc_tail(drive, &pc)) {
+ printk(KERN_ERR "ide-tape: Can't get block descriptor\n");
+ if (tape->tape_block_size == 0) {
+ printk(KERN_WARNING "ide-tape: Cannot deal with zero "
+ "block size, assuming 32k\n");
+ tape->tape_block_size = 32768;
+ }
+ return;
+ }
+ tape->tape_block_size = (pc.buffer[4 + 5] << 16) +
+ (pc.buffer[4 + 6] << 8) +
+ pc.buffer[4 + 7];
+ tape->drv_write_prot = (pc.buffer[2] & 0x80) >> 7;
+}
/*
* Our character device open function.
clear_bit(IDETAPE_PIPELINE_ERROR, &tape->flags);
/* Read block size and write protect status from drive. */
- idetape_get_blocksize_from_block_descriptor(drive);
+ ide_tape_get_bsize_from_bdesc(drive);
/* Set write protect flag if device is opened as read-only. */
if ((filp->f_flags & O_ACCMODE) == O_RDONLY)
*((unsigned short *) &gcw) = id->config;
-#if IDETAPE_DEBUG_INFO
- printk(KERN_INFO "ide-tape: Dumping ATAPI Identify Device tape parameters\n");
- printk(KERN_INFO "ide-tape: Protocol Type: ");
- switch (gcw.protocol) {
- case 0: case 1: printk("ATA\n");break;
- case 2: printk("ATAPI\n");break;
- case 3: printk("Reserved (Unknown to ide-tape)\n");break;
- }
- printk(KERN_INFO "ide-tape: Device Type: %x - ",gcw.device_type);
- switch (gcw.device_type) {
- case 0: printk("Direct-access Device\n");break;
- case 1: printk("Streaming Tape Device\n");break;
- case 2: case 3: case 4: printk("Reserved\n");break;
- case 5: printk("CD-ROM Device\n");break;
- case 6: printk("Reserved\n");
- case 7: printk("Optical memory Device\n");break;
- case 0x1f: printk("Unknown or no Device type\n");break;
- default: printk("Reserved\n");
- }
- printk(KERN_INFO "ide-tape: Removable: %s",gcw.removable ? "Yes\n":"No\n");
- printk(KERN_INFO "ide-tape: Command Packet DRQ Type: ");
- switch (gcw.drq_type) {
- case 0: printk("Microprocessor DRQ\n");break;
- case 1: printk("Interrupt DRQ\n");break;
- case 2: printk("Accelerated DRQ\n");break;
- case 3: printk("Reserved\n");break;
- }
- printk(KERN_INFO "ide-tape: Command Packet Size: ");
- switch (gcw.packet_size) {
- case 0: printk("12 bytes\n");break;
- case 1: printk("16 bytes\n");break;
- default: printk("Reserved\n");break;
- }
-#endif /* IDETAPE_DEBUG_INFO */
-
/* Check that we can support this device */
- if (gcw.protocol !=2 )
- printk(KERN_ERR "ide-tape: Protocol is not ATAPI\n");
+ if (gcw.protocol != 2)
+ printk(KERN_ERR "ide-tape: Protocol (0x%02x) is not ATAPI\n",
+ gcw.protocol);
else if (gcw.device_type != 1)
- printk(KERN_ERR "ide-tape: Device type is not set to tape\n");
+ printk(KERN_ERR "ide-tape: Device type (0x%02x) is not set "
+ "to tape\n", gcw.device_type);
else if (!gcw.removable)
printk(KERN_ERR "ide-tape: The removable flag is not set\n");
else if (gcw.packet_size != 0) {
- printk(KERN_ERR "ide-tape: Packet size is not 12 bytes long\n");
- if (gcw.packet_size == 1)
- printk(KERN_ERR "ide-tape: Sorry, padding to 16 bytes is still not supported\n");
+ printk(KERN_ERR "ide-tape: Packet size (0x%02x) is not 12 "
+ "bytes long\n", gcw.packet_size);
} else
return 1;
return 0;
}
-/*
- * Use INQUIRY to get the firmware revision
- */
-static void idetape_get_inquiry_results (ide_drive_t *drive)
+static void idetape_get_inquiry_results(ide_drive_t *drive)
{
char *r;
idetape_tape_t *tape = drive->driver_data;
idetape_pc_t pc;
- idetape_inquiry_result_t *inquiry;
-
+
idetape_create_inquiry_cmd(&pc);
if (idetape_queue_pc_tail(drive, &pc)) {
- printk(KERN_ERR "ide-tape: %s: can't get INQUIRY results\n", tape->name);
+ printk(KERN_ERR "ide-tape: %s: can't get INQUIRY results\n",
+ tape->name);
return;
}
- inquiry = (idetape_inquiry_result_t *) pc.buffer;
- memcpy(tape->vendor_id, inquiry->vendor_id, 8);
- memcpy(tape->product_id, inquiry->product_id, 16);
- memcpy(tape->firmware_revision, inquiry->revision_level, 4);
+ memcpy(tape->vendor_id, &pc.buffer[8], 8);
+ memcpy(tape->product_id, &pc.buffer[16], 16);
+ memcpy(tape->firmware_revision, &pc.buffer[32], 4);
+
ide_fixstring(tape->vendor_id, 10, 0);
ide_fixstring(tape->product_id, 18, 0);
ide_fixstring(tape->firmware_revision, 6, 0);
r = tape->firmware_revision;
if (*(r + 1) == '.')
- tape->firmware_revision_num = (*r - '0') * 100 + (*(r + 2) - '0') * 10 + *(r + 3) - '0';
- printk(KERN_INFO "ide-tape: %s <-> %s: %s %s rev %s\n", drive->name, tape->name, tape->vendor_id, tape->product_id, tape->firmware_revision);
+ tape->firmware_revision_num = (*r - '0') * 100 +
+ (*(r + 2) - '0') * 10 + *(r + 3) - '0';
+ printk(KERN_INFO "ide-tape: %s <-> %s: %s %s rev %s\n",
+ drive->name, tape->name, tape->vendor_id,
+ tape->product_id, tape->firmware_revision);
}
/*
- * idetape_get_mode_sense_results asks the tape about its various
- * parameters. In particular, we will adjust our data transfer buffer
- * size to the recommended value as returned by the tape.
+ * Ask the tape about its various parameters. In particular, we will adjust our
+ * data transfer buffer size to the recommended value as returned by the tape.
*/
static void idetape_get_mode_sense_results (ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
idetape_pc_t pc;
- idetape_mode_parameter_header_t *header;
- idetape_capabilities_page_t *capabilities;
-
+ u8 *caps;
+ u8 speed, max_speed;
+
idetape_create_mode_sense_cmd(&pc, IDETAPE_CAPABILITIES_PAGE);
if (idetape_queue_pc_tail(drive, &pc)) {
- printk(KERN_ERR "ide-tape: Can't get tape parameters - assuming some default values\n");
+ printk(KERN_ERR "ide-tape: Can't get tape parameters - assuming"
+ " some default values\n");
tape->tape_block_size = 512;
- tape->capabilities.ctl = 52;
- tape->capabilities.speed = 450;
- tape->capabilities.buffer_size = 6 * 52;
+ put_unaligned(52, (u16 *)&tape->caps[12]);
+ put_unaligned(540, (u16 *)&tape->caps[14]);
+ put_unaligned(6*52, (u16 *)&tape->caps[16]);
return;
}
- header = (idetape_mode_parameter_header_t *) pc.buffer;
- capabilities = (idetape_capabilities_page_t *) (pc.buffer + sizeof(idetape_mode_parameter_header_t) + header->bdl);
+ caps = pc.buffer + 4 + pc.buffer[3];
- capabilities->max_speed = ntohs(capabilities->max_speed);
- capabilities->ctl = ntohs(capabilities->ctl);
- capabilities->speed = ntohs(capabilities->speed);
- capabilities->buffer_size = ntohs(capabilities->buffer_size);
+ /* convert to host order and save for later use */
+ speed = be16_to_cpu(*(u16 *)&caps[14]);
+ max_speed = be16_to_cpu(*(u16 *)&caps[8]);
- if (!capabilities->speed) {
- printk(KERN_INFO "ide-tape: %s: overriding capabilities->speed (assuming 650KB/sec)\n", drive->name);
- capabilities->speed = 650;
+ put_unaligned(max_speed, (u16 *)&caps[8]);
+ put_unaligned(be16_to_cpu(*(u16 *)&caps[12]), (u16 *)&caps[12]);
+ put_unaligned(speed, (u16 *)&caps[14]);
+ put_unaligned(be16_to_cpu(*(u16 *)&caps[16]), (u16 *)&caps[16]);
+
+ if (!speed) {
+ printk(KERN_INFO "ide-tape: %s: invalid tape speed "
+ "(assuming 650KB/sec)\n", drive->name);
+ put_unaligned(650, (u16 *)&caps[14]);
}
- if (!capabilities->max_speed) {
- printk(KERN_INFO "ide-tape: %s: overriding capabilities->max_speed (assuming 650KB/sec)\n", drive->name);
- capabilities->max_speed = 650;
+ if (!max_speed) {
+ printk(KERN_INFO "ide-tape: %s: invalid max_speed "
+ "(assuming 650KB/sec)\n", drive->name);
+ put_unaligned(650, (u16 *)&caps[8]);
}
- tape->capabilities = *capabilities; /* Save us a copy */
- if (capabilities->blk512)
+ memcpy(&tape->caps, caps, 20);
+ if (caps[7] & 0x02)
tape->tape_block_size = 512;
- else if (capabilities->blk1024)
+ else if (caps[7] & 0x04)
tape->tape_block_size = 1024;
-
-#if IDETAPE_DEBUG_INFO
- printk(KERN_INFO "ide-tape: Dumping the results of the MODE SENSE packet command\n");
- printk(KERN_INFO "ide-tape: Mode Parameter Header:\n");
- printk(KERN_INFO "ide-tape: Mode Data Length - %d\n",header->mode_data_length);
- printk(KERN_INFO "ide-tape: Medium Type - %d\n",header->medium_type);
- printk(KERN_INFO "ide-tape: Device Specific Parameter - %d\n",header->dsp);
- printk(KERN_INFO "ide-tape: Block Descriptor Length - %d\n",header->bdl);
-
- printk(KERN_INFO "ide-tape: Capabilities and Mechanical Status Page:\n");
- printk(KERN_INFO "ide-tape: Page code - %d\n",capabilities->page_code);
- printk(KERN_INFO "ide-tape: Page length - %d\n",capabilities->page_length);
- printk(KERN_INFO "ide-tape: Read only - %s\n",capabilities->ro ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Supports reverse space - %s\n",capabilities->sprev ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Supports erase initiated formatting - %s\n",capabilities->efmt ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Supports QFA two Partition format - %s\n",capabilities->qfa ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Supports locking the medium - %s\n",capabilities->lock ? "Yes":"No");
- printk(KERN_INFO "ide-tape: The volume is currently locked - %s\n",capabilities->locked ? "Yes":"No");
- printk(KERN_INFO "ide-tape: The device defaults in the prevent state - %s\n",capabilities->prevent ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Supports ejecting the medium - %s\n",capabilities->eject ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Supports error correction - %s\n",capabilities->ecc ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Supports data compression - %s\n",capabilities->cmprs ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Supports 512 bytes block size - %s\n",capabilities->blk512 ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Supports 1024 bytes block size - %s\n",capabilities->blk1024 ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Supports 32768 bytes block size / Restricted byte count for PIO transfers - %s\n",capabilities->blk32768 ? "Yes":"No");
- printk(KERN_INFO "ide-tape: Maximum supported speed in KBps - %d\n",capabilities->max_speed);
- printk(KERN_INFO "ide-tape: Continuous transfer limits in blocks - %d\n",capabilities->ctl);
- printk(KERN_INFO "ide-tape: Current speed in KBps - %d\n",capabilities->speed);
- printk(KERN_INFO "ide-tape: Buffer size - %d\n",capabilities->buffer_size*512);
-#endif /* IDETAPE_DEBUG_INFO */
-}
-
-/*
- * ide_get_blocksize_from_block_descriptor does a mode sense page 0 with block descriptor
- * and if it succeeds sets the tape block size with the reported value
- */
-static void idetape_get_blocksize_from_block_descriptor(ide_drive_t *drive)
-{
-
- idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t pc;
- idetape_mode_parameter_header_t *header;
- idetape_parameter_block_descriptor_t *block_descrp;
-
- idetape_create_mode_sense_cmd(&pc, IDETAPE_BLOCK_DESCRIPTOR);
- if (idetape_queue_pc_tail(drive, &pc)) {
- printk(KERN_ERR "ide-tape: Can't get block descriptor\n");
- if (tape->tape_block_size == 0) {
- printk(KERN_WARNING "ide-tape: Cannot deal with zero block size, assume 32k\n");
- tape->tape_block_size = 32768;
- }
- return;
- }
- header = (idetape_mode_parameter_header_t *) pc.buffer;
- block_descrp = (idetape_parameter_block_descriptor_t *) (pc.buffer + sizeof(idetape_mode_parameter_header_t));
- tape->tape_block_size =( block_descrp->length[0]<<16) + (block_descrp->length[1]<<8) + block_descrp->length[2];
- tape->drv_write_prot = (header->dsp & 0x80) >> 7;
-
-#if IDETAPE_DEBUG_INFO
- printk(KERN_INFO "ide-tape: Adjusted block size - %d\n", tape->tape_block_size);
-#endif /* IDETAPE_DEBUG_INFO */
}
#ifdef CONFIG_IDE_PROC_FS
/*
* drive setting name read/write data type min max mul_factor div_factor data pointer set function
*/
- ide_add_setting(drive, "buffer", SETTING_READ, TYPE_SHORT, 0, 0xffff, 1, 2, &tape->capabilities.buffer_size, NULL);
+ ide_add_setting(drive, "buffer", SETTING_READ, TYPE_SHORT, 0, 0xffff,
+ 1, 2, (u16 *)&tape->caps[16], NULL);
ide_add_setting(drive, "pipeline_min", SETTING_RW, TYPE_INT, 1, 0xffff, tape->stage_size / 1024, 1, &tape->min_pipeline, NULL);
ide_add_setting(drive, "pipeline", SETTING_RW, TYPE_INT, 1, 0xffff, tape->stage_size / 1024, 1, &tape->max_stages, NULL);
ide_add_setting(drive, "pipeline_max", SETTING_RW, TYPE_INT, 1, 0xffff, tape->stage_size / 1024, 1, &tape->max_pipeline, NULL);
ide_add_setting(drive, "pipeline_used", SETTING_READ, TYPE_INT, 0, 0xffff, tape->stage_size / 1024, 1, &tape->nr_stages, NULL);
ide_add_setting(drive, "pipeline_pending", SETTING_READ, TYPE_INT, 0, 0xffff, tape->stage_size / 1024, 1, &tape->nr_pending_stages, NULL);
- ide_add_setting(drive, "speed", SETTING_READ, TYPE_SHORT, 0, 0xffff, 1, 1, &tape->capabilities.speed, NULL);
+ ide_add_setting(drive, "speed", SETTING_READ, TYPE_SHORT, 0, 0xffff,
+ 1, 1, (u16 *)&tape->caps[14], NULL);
ide_add_setting(drive, "stage", SETTING_READ, TYPE_INT, 0, 0xffff, 1, 1024, &tape->stage_size, NULL);
ide_add_setting(drive, "tdsc", SETTING_RW, TYPE_INT, IDETAPE_DSC_RW_MIN, IDETAPE_DSC_RW_MAX, 1000, HZ, &tape->best_dsc_rw_frequency, NULL);
ide_add_setting(drive, "dsc_overlap", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->dsc_overlap, NULL);
struct idetape_id_gcw gcw;
int stage_size;
struct sysinfo si;
+ u16 *ctl = (u16 *)&tape->caps[12];
spin_lock_init(&tape->spinlock);
drive->dsc_overlap = 1;
idetape_get_inquiry_results(drive);
idetape_get_mode_sense_results(drive);
- idetape_get_blocksize_from_block_descriptor(drive);
+ ide_tape_get_bsize_from_bdesc(drive);
tape->user_bs_factor = 1;
- tape->stage_size = tape->capabilities.ctl * tape->tape_block_size;
+ tape->stage_size = *ctl * tape->tape_block_size;
while (tape->stage_size > 0xffff) {
printk(KERN_NOTICE "ide-tape: decreasing stage size\n");
- tape->capabilities.ctl /= 2;
- tape->stage_size = tape->capabilities.ctl * tape->tape_block_size;
+ *ctl /= 2;
+ tape->stage_size = *ctl * tape->tape_block_size;
}
stage_size = tape->stage_size;
tape->pages_per_stage = stage_size / PAGE_SIZE;
tape->excess_bh_size = PAGE_SIZE - stage_size % PAGE_SIZE;
}
- /*
- * Select the "best" DSC read/write polling frequency
- * and pipeline size.
- */
- speed = max(tape->capabilities.speed, tape->capabilities.max_speed);
+ /* Select the "best" DSC read/write polling freq and pipeline size. */
+ speed = max(*(u16 *)&tape->caps[14], *(u16 *)&tape->caps[8]);
tape->max_stages = speed * 1000 * 10 / tape->stage_size;
tape->max_stages = tape->min_pipeline = tape->max_pipeline = 1;
t1 = (tape->stage_size * HZ) / (speed * 1000);
- tmid = (tape->capabilities.buffer_size * 32 * HZ) / (speed * 125);
+ tmid = (*(u16 *)&tape->caps[16] * 32 * HZ) / (speed * 125);
tn = (IDETAPE_FIFO_THRESHOLD * tape->stage_size * HZ) / (speed * 1000);
if (tape->max_stages)
tape->best_dsc_rw_frequency = max_t(unsigned long, min_t(unsigned long, t, IDETAPE_DSC_RW_MAX), IDETAPE_DSC_RW_MIN);
printk(KERN_INFO "ide-tape: %s <-> %s: %dKBps, %d*%dkB buffer, "
"%dkB pipeline, %lums tDSC%s\n",
- drive->name, tape->name, tape->capabilities.speed,
- (tape->capabilities.buffer_size * 512) / tape->stage_size,
+ drive->name, tape->name, *(u16 *)&tape->caps[14],
+ (*(u16 *)&tape->caps[16] * 512) / tape->stage_size,
tape->stage_size / 1024,
tape->max_stages * tape->stage_size / 1024,
tape->best_dsc_rw_frequency * 1000 / HZ,
u8 args[4], xfer_rate = 0;
ide_task_t tfargs;
struct ide_taskfile *tf = &tfargs.tf;
+ struct hd_driveid *id = drive->id;
if (NULL == (void *) arg) {
struct request rq;
return -ENOMEM;
}
- if (set_transfer(drive, &tfargs)) {
+ if (tf->command == WIN_SETFEATURES &&
+ tf->feature == SETFEATURES_XFER &&
+ tf->nsect >= XFER_SW_DMA_0 &&
+ (id->dma_ultra || id->dma_mword || id->dma_1word)) {
xfer_rate = args[1];
- if (ide_ata66_check(drive, &tfargs))
+ if (tf->nsect > XFER_UDMA_2 && !eighty_ninty_three(drive)) {
+ printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot "
+ "be set\n", drive->name);
goto abort;
+ }
}
err = ide_raw_taskfile(drive, &tfargs, buf, args[3]);
}
/*
- * Lenghten active & recovery time so that cycle time is correct.
+ * Lengthen active & recovery time so that cycle time is correct.
*/
if (t->act8b + t->rec8b < t->cyc8b) {
/**
* ide_unregister - free an IDE interface
* @index: index of interface (will change soon to a pointer)
+ * @init_default: init default hwif flag
+ * @restore: restore hwif flag
*
* Perform the final unregister of an IDE interface. At the moment
* we don't refcount interfaces so this will also get split up.
* This is raving bonkers.
*/
-void ide_unregister(unsigned int index)
+void ide_unregister(unsigned int index, int init_default, int restore)
{
ide_drive_t *drive;
ide_hwif_t *hwif, *g;
/* restore hwif data to pristine status */
ide_init_port_data(hwif, index);
- init_hwif_default(hwif, index);
- ide_hwif_restore(hwif, &tmp_hwif);
+ if (init_default)
+ init_hwif_default(hwif, index);
+
+ if (restore)
+ ide_hwif_restore(hwif, &tmp_hwif);
abort:
spin_unlock_irq(&ide_lock);
}
EXPORT_SYMBOL_GPL(ide_init_port_hw);
+ide_hwif_t *ide_deprecated_find_port(unsigned long base)
+{
+ ide_hwif_t *hwif;
+ int i;
+
+ for (i = 0; i < MAX_HWIFS; i++) {
+ hwif = &ide_hwifs[i];
+ if (hwif->io_ports[IDE_DATA_OFFSET] == base)
+ goto found;
+ }
+
+ for (i = 0; i < MAX_HWIFS; i++) {
+ hwif = &ide_hwifs[i];
+ if (hwif->hold)
+ continue;
+ if (!hwif->present && hwif->mate == NULL)
+ goto found;
+ }
+
+ hwif = NULL;
+found:
+ return hwif;
+}
+EXPORT_SYMBOL_GPL(ide_deprecated_find_port);
+
/**
* ide_register_hw - register IDE interface
* @hw: hardware registers
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
do {
- for (index = 0; index < MAX_HWIFS; ++index) {
- hwif = &ide_hwifs[index];
- if (hwif->io_ports[IDE_DATA_OFFSET] == hw->io_ports[IDE_DATA_OFFSET])
- goto found;
- }
- for (index = 0; index < MAX_HWIFS; ++index) {
- hwif = &ide_hwifs[index];
- if (hwif->hold)
- continue;
- if (!hwif->present && hwif->mate == NULL)
- goto found;
- }
+ hwif = ide_deprecated_find_port(hw->io_ports[IDE_DATA_OFFSET]);
+ index = hwif->index;
+ if (hwif)
+ goto found;
for (index = 0; index < MAX_HWIFS; index++)
- ide_unregister(index);
+ ide_unregister(index, 1, 1);
} while (retry--);
return -1;
found:
if (hwif->present)
- ide_unregister(index);
- else if (!hwif->hold) {
+ ide_unregister(index, 0, 1);
+ else if (!hwif->hold)
ide_init_port_data(hwif, index);
- init_hwif_default(hwif, index);
- }
- if (hwif->present)
- return -1;
ide_init_port_hw(hwif, hw);
hwif->quirkproc = quirkproc;
idx[0] = index;
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
if (hwifp)
*hwifp = hwif;
return -EBUSY;
drive->io_32bit = arg;
-#ifdef CONFIG_BLK_DEV_DTC2278
- if (HWIF(drive)->chipset == ide_dtc2278)
- HWIF(drive)->drives[!drive->select.b.unit].io_32bit = arg;
-#endif /* CONFIG_BLK_DEV_DTC2278 */
spin_unlock_irq(&ide_lock);
case HDIO_GET_NICE:
return put_user(drive->dsc_overlap << IDE_NICE_DSC_OVERLAP |
drive->atapi_overlap << IDE_NICE_ATAPI_OVERLAP |
- drive->nice0 << IDE_NICE_0 |
- drive->nice1 << IDE_NICE_1 |
- drive->nice2 << IDE_NICE_2,
+ drive->nice1 << IDE_NICE_1,
(long __user *) arg);
-
#ifdef CONFIG_IDE_TASK_IOCTL
case HDIO_DRIVE_TASKFILE:
if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
case HDIO_UNREGISTER_HWIF:
if (!capable(CAP_SYS_RAWIO)) return -EACCES;
/* (arg > MAX_HWIFS) checked in function */
- ide_unregister(arg);
+ ide_unregister(arg, 1, 1);
return 0;
case HDIO_SET_NICE:
if (!capable(CAP_SYS_ADMIN)) return -EACCES;
int index;
for (index = 0; index < MAX_HWIFS; ++index)
- ide_unregister(index);
+ ide_unregister(index, 0, 0);
proc_ide_destroy();
return t;
}
+static const struct ide_port_info ali14xx_port_info = {
+ .chipset = ide_ali14xx,
+ .host_flags = IDE_HFLAG_NO_DMA | IDE_HFLAG_NO_AUTOTUNE,
+ .pio_mask = ATA_PIO4,
+};
+
static int __init ali14xx_probe(void)
{
- ide_hwif_t *hwif, *mate;
static u8 idx[4] = { 0, 1, 0xff, 0xff };
printk(KERN_DEBUG "ali14xx: base=0x%03x, regOn=0x%02x.\n",
return 1;
}
- hwif = &ide_hwifs[0];
- mate = &ide_hwifs[1];
-
- hwif->chipset = ide_ali14xx;
- hwif->pio_mask = ATA_PIO4;
- hwif->set_pio_mode = &ali14xx_set_pio_mode;
- hwif->mate = mate;
-
- mate->chipset = ide_ali14xx;
- mate->pio_mask = ATA_PIO4;
- mate->set_pio_mode = &ali14xx_set_pio_mode;
- mate->mate = hwif;
- mate->channel = 1;
+ ide_hwifs[0].set_pio_mode = &ali14xx_set_pio_mode;
+ ide_hwifs[1].set_pio_mode = &ali14xx_set_pio_mode;
- ide_device_add(idx);
+ ide_device_add(idx, &ali14xx_port_info);
return 0;
}
}
}
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
}
return 0;
/* Actually we do - there is a data sheet available for the
Winbond but does anyone actually care */
}
-
- /*
- * 32bit I/O has to be enabled for *both* drives at the same time.
- */
- drive->io_32bit = 1;
- HWIF(drive)->drives[!drive->select.b.unit].io_32bit = 1;
}
+static const struct ide_port_info dtc2278_port_info __initdata = {
+ .chipset = ide_dtc2278,
+ .host_flags = IDE_HFLAG_SERIALIZE |
+ IDE_HFLAG_NO_UNMASK_IRQS |
+ IDE_HFLAG_IO_32BIT |
+ /* disallow ->io_32bit changes */
+ IDE_HFLAG_NO_IO_32BIT |
+ IDE_HFLAG_NO_DMA |
+ IDE_HFLAG_NO_AUTOTUNE,
+ .pio_mask = ATA_PIO4,
+};
+
static int __init dtc2278_probe(void)
{
unsigned long flags;
#endif
local_irq_restore(flags);
- hwif->serialized = 1;
- hwif->chipset = ide_dtc2278;
- hwif->pio_mask = ATA_PIO4;
hwif->set_pio_mode = &dtc2278_set_pio_mode;
- hwif->drives[0].no_unmask = 1;
- hwif->drives[1].no_unmask = 1;
- hwif->mate = mate;
-
- mate->serialized = 1;
- mate->chipset = ide_dtc2278;
- mate->pio_mask = ATA_PIO4;
- mate->drives[0].no_unmask = 1;
- mate->drives[1].no_unmask = 1;
- mate->mate = hwif;
- mate->channel = 1;
-
- ide_device_add(idx);
+
+ ide_device_add(idx, &dtc2278_port_info);
return 0;
}
ide_init_port_data(hwif, index);
ide_init_port_hw(hwif, &hw);
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
}
}
release_mem_region(res_start, res_n);
}
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
return 0;
}
#endif
}
+static void __init ht6560b_port_init_devs(ide_hwif_t *hwif)
+{
+ /* Setting default configurations for drives. */
+ int t = (HT_CONFIG_DEFAULT << 8) | HT_TIMING_DEFAULT;
+
+ if (hwif->channel)
+ t |= (HT_SECONDARY_IF << 8);
+
+ hwif->drives[0].drive_data = t;
+ hwif->drives[1].drive_data = t;
+}
+
int probe_ht6560b = 0;
module_param_named(probe, probe_ht6560b, bool, 0);
MODULE_PARM_DESC(probe, "probe for HT6560B chipset");
+static const struct ide_port_info ht6560b_port_info __initdata = {
+ .chipset = ide_ht6560b,
+ .host_flags = IDE_HFLAG_SERIALIZE | /* is this needed? */
+ IDE_HFLAG_NO_DMA |
+ IDE_HFLAG_NO_AUTOTUNE |
+ IDE_HFLAG_ABUSE_PREFETCH,
+ .pio_mask = ATA_PIO5,
+};
+
static int __init ht6560b_init(void)
{
ide_hwif_t *hwif, *mate;
static u8 idx[4] = { 0, 1, 0xff, 0xff };
- int t;
if (probe_ht6560b == 0)
return -ENODEV;
goto release_region;
}
- hwif->chipset = ide_ht6560b;
hwif->selectproc = &ht6560b_selectproc;
- hwif->host_flags = IDE_HFLAG_ABUSE_PREFETCH;
- hwif->pio_mask = ATA_PIO5;
hwif->set_pio_mode = &ht6560b_set_pio_mode;
- hwif->serialized = 1; /* is this needed? */
- hwif->mate = mate;
- mate->chipset = ide_ht6560b;
mate->selectproc = &ht6560b_selectproc;
- mate->host_flags = IDE_HFLAG_ABUSE_PREFETCH;
- mate->pio_mask = ATA_PIO5;
mate->set_pio_mode = &ht6560b_set_pio_mode;
- mate->serialized = 1; /* is this needed? */
- mate->mate = hwif;
- mate->channel = 1;
-
- /*
- * Setting default configurations for drives
- */
- t = (HT_CONFIG_DEFAULT << 8);
- t |= HT_TIMING_DEFAULT;
- hwif->drives[0].drive_data = t;
- hwif->drives[1].drive_data = t;
- t |= (HT_SECONDARY_IF << 8);
- mate->drives[0].drive_data = t;
- mate->drives[1].drive_data = t;
+ hwif->port_init_devs = ht6560b_port_init_devs;
+ mate->port_init_devs = ht6560b_port_init_devs;
- ide_device_add(idx);
+ ide_device_add(idx, &ht6560b_port_info);
return 0;
static int idecs_register(unsigned long io, unsigned long ctl, unsigned long irq, struct pcmcia_device *handle)
{
+ ide_hwif_t *hwif;
hw_regs_t hw;
+ int i;
+ u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+
memset(&hw, 0, sizeof(hw));
- ide_init_hwif_ports(&hw, io, ctl, NULL);
+ ide_std_init_ports(&hw, io, ctl);
hw.irq = irq;
hw.chipset = ide_pci;
hw.dev = &handle->dev;
- return ide_register_hw(&hw, &ide_undecoded_slave, NULL);
+
+ hwif = ide_deprecated_find_port(hw.io_ports[IDE_DATA_OFFSET]);
+ if (hwif == NULL)
+ return -1;
+
+ i = hwif->index;
+
+ if (hwif->present)
+ ide_unregister(i, 0, 0);
+ else if (!hwif->hold)
+ ide_init_port_data(hwif, i);
+
+ ide_init_port_hw(hwif, &hw);
+ hwif->quirkproc = &ide_undecoded_slave;
+
+ idx[0] = i;
+
+ ide_device_add(idx, NULL);
+
+ return hwif->present ? i : -1;
}
/*======================================================================
if (info->ndev) {
/* FIXME: if this fails we need to queue the cleanup somehow
-- need to investigate the required PCMCIA magic */
- ide_unregister(info->hd);
+ ide_unregister(info->hd, 0, 0);
}
info->ndev = 0;
idx[0] = hwif->index;
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
platform_set_drvdata(pdev, hwif);
{
ide_hwif_t *hwif = pdev->dev.driver_data;
- ide_unregister(hwif->index);
+ ide_unregister(hwif->index, 0, 0);
return 0;
}
ide_init_port_data(hwif, index);
ide_init_port_hw(hwif, &hw);
- if (macintosh_config->ide_type == MAC_IDE_BABOON &&
- macintosh_config->ident == MAC_MODEL_PB190) {
- /* Fix breakage in ide-disk.c: drive capacity */
- /* is not initialized for drives without a */
- /* hardware ID, and we can't get that without */
- /* probing the drive which freezes a 190. */
- ide_drive_t *drive = &hwif->drives[0];
- drive->capacity64 = drive->cyl*drive->head*drive->sect;
- }
-
hwif->mmio = 1;
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
}
return 0;
}
}
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
return 0;
}
* called to setup an ata channel : adjusts attributes & links for tuning
*/
-static void __init qd_setup(ide_hwif_t *hwif, int base, int config,
- unsigned int data0, unsigned int data1)
+static void __init qd_setup(ide_hwif_t *hwif, int base, int config)
{
- hwif->chipset = ide_qd65xx;
- hwif->channel = hwif->index;
hwif->select_data = base;
hwif->config_data = config;
- hwif->drives[0].drive_data = data0;
- hwif->drives[1].drive_data = data1;
- hwif->drives[0].io_32bit =
- hwif->drives[1].io_32bit = 1;
- hwif->pio_mask = ATA_PIO4;
+}
+
+static void __init qd6500_port_init_devs(ide_hwif_t *hwif)
+{
+ u8 base = hwif->select_data, config = QD_CONFIG(hwif);
+
+ hwif->drives[0].drive_data = QD6500_DEF_DATA;
+ hwif->drives[1].drive_data = QD6500_DEF_DATA;
+}
+
+static void __init qd6580_port_init_devs(ide_hwif_t *hwif)
+{
+ u16 t1, t2;
+ u8 base = hwif->select_data, config = QD_CONFIG(hwif);
+
+ if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) {
+ t1 = QD6580_DEF_DATA;
+ t2 = QD6580_DEF_DATA2;
+ } else
+ t2 = t1 = hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA;
+
+ hwif->drives[0].drive_data = t1;
+ hwif->drives[1].drive_data = t2;
}
/*
}
*/
+static const struct ide_port_info qd65xx_port_info __initdata = {
+ .chipset = ide_qd65xx,
+ .host_flags = IDE_HFLAG_IO_32BIT |
+ IDE_HFLAG_NO_DMA |
+ IDE_HFLAG_NO_AUTOTUNE,
+ .pio_mask = ATA_PIO4,
+};
+
/*
* qd_probe:
*
return 1;
}
- qd_setup(hwif, base, config, QD6500_DEF_DATA, QD6500_DEF_DATA);
+ qd_setup(hwif, base, config);
+ hwif->port_init_devs = qd6500_port_init_devs;
hwif->set_pio_mode = &qd6500_set_pio_mode;
- idx[0] = unit;
+ idx[unit] = unit;
- ide_device_add(idx);
+ ide_device_add(idx, &qd65xx_port_info);
return 1;
}
hwif = &ide_hwifs[unit];
printk(KERN_INFO "%s: qd6580: single IDE board\n",
hwif->name);
- qd_setup(hwif, base, config | (control << 8),
- QD6580_DEF_DATA, QD6580_DEF_DATA2);
+ qd_setup(hwif, base, config | (control << 8));
+
+ hwif->port_init_devs = qd6580_port_init_devs;
hwif->set_pio_mode = &qd6580_set_pio_mode;
- idx[0] = unit;
+ idx[unit] = unit;
- ide_device_add(idx);
+ ide_device_add(idx, &qd65xx_port_info);
outb(QD_DEF_CONTR, QD_CONTROL_PORT);
printk(KERN_INFO "%s&%s: qd6580: dual IDE board\n",
hwif->name, mate->name);
- qd_setup(hwif, base, config | (control << 8),
- QD6580_DEF_DATA, QD6580_DEF_DATA);
+ qd_setup(hwif, base, config | (control << 8));
+ hwif->port_init_devs = qd6580_port_init_devs;
hwif->set_pio_mode = &qd6580_set_pio_mode;
- qd_setup(mate, base, config | (control << 8),
- QD6580_DEF_DATA2, QD6580_DEF_DATA2);
+ qd_setup(mate, base, config | (control << 8));
+ mate->port_init_devs = qd6580_port_init_devs;
mate->set_pio_mode = &qd6580_set_pio_mode;
idx[0] = 0;
idx[1] = 1;
- ide_device_add(idx);
+ ide_device_add(idx, &qd65xx_port_info);
outb(QD_DEF_CONTR, QD_CONTROL_PORT);
spin_unlock_irqrestore(&ide_lock, flags);
}
+static const struct ide_port_info umc8672_port_info __initdata = {
+ .chipset = ide_umc8672,
+ .host_flags = IDE_HFLAG_NO_DMA | IDE_HFLAG_NO_AUTOTUNE,
+ .pio_mask = ATA_PIO4,
+};
+
static int __init umc8672_probe(void)
{
- ide_hwif_t *hwif, *mate;
unsigned long flags;
static u8 idx[4] = { 0, 1, 0xff, 0xff };
umc_set_speeds (current_speeds);
local_irq_restore(flags);
- hwif = &ide_hwifs[0];
- mate = &ide_hwifs[1];
-
- hwif->chipset = ide_umc8672;
- hwif->pio_mask = ATA_PIO4;
- hwif->set_pio_mode = &umc_set_pio_mode;
- hwif->mate = mate;
-
- mate->chipset = ide_umc8672;
- mate->pio_mask = ATA_PIO4;
- mate->set_pio_mode = &umc_set_pio_mode;
- mate->mate = hwif;
- mate->channel = 1;
+ ide_hwifs[0].set_pio_mode = &umc_set_pio_mode;
+ ide_hwifs[1].set_pio_mode = &umc_set_pio_mode;
- ide_device_add(idx);
+ ide_device_add(idx, &umc8672_port_info);
return 0;
}
*ata_regs = ahwif->regbase + (14 << AU1XXX_ATA_REG_OFFSET);
}
+static const struct ide_port_info au1xxx_port_info = {
+ .host_flags = IDE_HFLAG_POST_SET_MODE |
+ IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
+ IDE_HFLAG_NO_IO_32BIT |
+ IDE_HFLAG_UNMASK_IRQS,
+ .pio_mask = ATA_PIO4,
+#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
+ .mwdma_mask = ATA_MWDMA2,
+#endif
+};
+
static int au_ide_probe(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
hwif->dev = dev;
- hwif->ultra_mask = 0x0; /* Disable Ultra DMA */
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
- hwif->mwdma_mask = 0x07; /* Multimode-2 DMA */
- hwif->swdma_mask = 0x00;
-#else
- hwif->mwdma_mask = 0x0;
- hwif->swdma_mask = 0x0;
-#endif
-
- hwif->pio_mask = ATA_PIO4;
- hwif->host_flags = IDE_HFLAG_POST_SET_MODE;
-
- hwif->drives[0].unmask = 1;
- hwif->drives[1].unmask = 1;
-
/* hold should be on in all cases */
hwif->hold = 1;
hwif->ide_dma_test_irq = &auide_dma_test_irq;
hwif->dma_lost_irq = &auide_dma_lost_irq;
#endif
- hwif->channel = 0;
hwif->select_data = 0; /* no chipset-specific code */
hwif->config_data = 0; /* no chipset-specific code */
- hwif->drives[0].autotune = 1; /* 1=autotune, 2=noautotune, 0=default */
- hwif->drives[1].autotune = 1;
-
- hwif->drives[0].no_io_32bit = 1;
- hwif->drives[1].no_io_32bit = 1;
-
auide_hwif.hwif = hwif;
hwif->hwif_data = &auide_hwif;
idx[0] = hwif->index;
- ide_device_add(idx);
+ ide_device_add(idx, &au1xxx_port_info);
dev_set_drvdata(dev, hwif);
ide_hwif_t *hwif = dev_get_drvdata(dev);
_auide_hwif *ahwif = &auide_hwif;
- ide_unregister(hwif->index);
+ ide_unregister(hwif->index, 0, 0);
iounmap((void *)ahwif->regbase);
idx[0] = hwif->index;
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
dev_set_drvdata(dev, hwif);
#include <linux/module.h>
#include <linux/types.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
return dev->irq;
}
+static u8 __devinit atp86x_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
+
+ pci_read_config_byte(dev, 0x49, &ata66);
+
+ return (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
hwif->set_dma_mode = &aec6210_set_mode;
- else
+ else {
hwif->set_dma_mode = &aec6260_set_mode;
- if (hwif->dma_base == 0)
- return;
-
- if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
- u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
-
- pci_read_config_byte(dev, 0x49, &ata66);
-
- hwif->cbl = (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+ hwif->cable_detect = atp86x_cable_detect;
}
}
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
hwif->set_dma_mode = &ali_set_dma_mode;
hwif->udma_filter = &ali_udma_filter;
+ hwif->cable_detect = ata66_ali15x3;
+
if (hwif->dma_base == 0)
return;
hwif->dma_setup = &ali15x3_dma_setup;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_ali15x3(hwif);
}
/**
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
-#include <asm/io.h>
#include "ide-timing.h"
return dev->irq;
}
+static u8 __devinit amd_cable_detect(ide_hwif_t *hwif)
+{
+ if ((amd_80w >> hwif->channel) & 1)
+ return ATA_CBL_PATA80;
+ else
+ return ATA_CBL_PATA40;
+}
+
static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
hwif->set_pio_mode = &amd_set_pio_mode;
hwif->set_dma_mode = &amd_set_drive;
- if (!hwif->dma_base)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
- if ((amd_80w >> hwif->channel) & 1)
- hwif->cbl = ATA_CBL_PATA80;
- else
- hwif->cbl = ATA_CBL_PATA40;
- }
+ hwif->cable_detect = amd_cable_detect;
}
#define IDE_HFLAGS_AMD \
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
-#include <linux/delay.h>
#include <linux/init.h>
-#include <asm/io.h>
-
#define ATIIXP_IDE_PIO_TIMING 0x40
#define ATIIXP_IDE_MDMA_TIMING 0x44
#define ATIIXP_IDE_PIO_CONTROL 0x48
spin_unlock_irqrestore(&atiixp_lock, flags);
}
+static u8 __devinit atiixp_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *pdev = to_pci_dev(hwif->dev);
+ u8 udma_mode = 0, ch = hwif->channel;
+
+ pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ch, &udma_mode);
+
+ if ((udma_mode & 0x07) >= 0x04 || (udma_mode & 0x70) >= 0x40)
+ return ATA_CBL_PATA80;
+ else
+ return ATA_CBL_PATA40;
+}
+
/**
* init_hwif_atiixp - fill in the hwif for the ATIIXP
* @hwif: IDE interface
static void __devinit init_hwif_atiixp(ide_hwif_t *hwif)
{
- struct pci_dev *pdev = to_pci_dev(hwif->dev);
- u8 udma_mode = 0, ch = hwif->channel;
-
hwif->set_pio_mode = &atiixp_set_pio_mode;
hwif->set_dma_mode = &atiixp_set_dma_mode;
- if (!hwif->dma_base)
- return;
-
- pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ch, &udma_mode);
-
- if ((udma_mode & 0x07) >= 0x04 || (udma_mode & 0x70) >= 0x40)
- hwif->cbl = ATA_CBL_PATA80;
- else
- hwif->cbl = ATA_CBL_PATA40;
+ hwif->cable_detect = atiixp_cable_detect;
}
static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
return 0;
}
+static const struct ide_port_info cmd640_port_info __initdata = {
+ .chipset = ide_cmd640,
+ .host_flags = IDE_HFLAG_SERIALIZE |
+ IDE_HFLAG_NO_DMA |
+ IDE_HFLAG_NO_AUTOTUNE |
+ IDE_HFLAG_ABUSE_PREFETCH |
+ IDE_HFLAG_ABUSE_FAST_DEVSEL,
+#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
+ .pio_mask = ATA_PIO5,
+#endif
+};
+
/*
* Probe for a cmd640 chipset, and initialize it if found.
*/
setup_device_ptrs ();
printk("%s: buggy cmd640%c interface on %s, config=0x%02x\n",
cmd_hwif0->name, 'a' + cmd640_chip_version - 1, bus_type, cfr);
- cmd_hwif0->chipset = ide_cmd640;
#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
- cmd_hwif0->host_flags = IDE_HFLAG_ABUSE_PREFETCH |
- IDE_HFLAG_ABUSE_FAST_DEVSEL;
- cmd_hwif0->pio_mask = ATA_PIO5;
cmd_hwif0->set_pio_mode = &cmd640_set_pio_mode;
#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
* Initialize data for secondary cmd640 port, if enabled
*/
if (second_port_cmd640) {
- cmd_hwif0->serialized = 1;
- cmd_hwif1->serialized = 1;
- cmd_hwif1->chipset = ide_cmd640;
- cmd_hwif0->mate = cmd_hwif1;
- cmd_hwif1->mate = cmd_hwif0;
- cmd_hwif1->channel = 1;
#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
- cmd_hwif1->host_flags = IDE_HFLAG_ABUSE_PREFETCH |
- IDE_HFLAG_ABUSE_FAST_DEVSEL;
- cmd_hwif1->pio_mask = ATA_PIO5;
cmd_hwif1->set_pio_mode = &cmd640_set_pio_mode;
#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
idx[1] = cmd_hwif1->index;
}
printk(KERN_INFO "%s: %sserialized, secondary interface %s\n", cmd_hwif1->name,
- cmd_hwif0->serialized ? "" : "not ", port2);
+ second_port_cmd640 ? "" : "not ", port2);
/*
* Establish initial timings/prefetch for all drives.
cmd640_dump_regs();
#endif
- ide_device_add(idx);
+ ide_device_add(idx, &cmd640_port_info);
return 1;
}
#include <linux/module.h>
#include <linux/types.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
hwif->set_pio_mode = &cmd64x_set_pio_mode;
hwif->set_dma_mode = &cmd64x_set_dma_mode;
+ hwif->cable_detect = ata66_cmd64x;
+
if (!hwif->dma_base)
return;
if (dev->device == PCI_DEVICE_ID_CMD_646 && dev->revision < 5)
hwif->ultra_mask = 0x00;
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_cmd64x(hwif);
-
switch (dev->device) {
case PCI_DEVICE_ID_CMD_648:
case PCI_DEVICE_ID_CMD_649:
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
-
-#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/dma-mapping.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
struct pio_clocks
{
int address;
ide_pci_setup_ports(dev, d, 14, &idx[0]);
- ide_device_add(idx);
+ ide_device_add(idx, d);
return 0;
}
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
-#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
+
#include <asm/io.h>
-#include <asm/irq.h>
/*
* Here are the standard PIO mode 0-4 timings for each "format".
cs5535_set_speed(drive, XFER_PIO_0 + pio);
}
-static u8 __devinit cs5535_cable_detect(struct pci_dev *dev)
+static u8 __devinit cs5535_cable_detect(ide_hwif_t *hwif)
{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 bit;
/* if a 80 wire cable was detected */
*/
static void __devinit init_hwif_cs5535(ide_hwif_t *hwif)
{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
-
hwif->set_pio_mode = &cs5535_set_pio_mode;
hwif->set_dma_mode = &cs5535_set_dma_mode;
- if (hwif->dma_base == 0)
- return;
-
- hwif->cbl = cs5535_cable_detect(dev);
+ hwif->cable_detect = cs5535_cable_detect;
}
static const struct ide_port_info cs5535_chipset __devinitdata = {
#include <linux/module.h>
#include <linux/types.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/ide.h>
#include <linux/init.h>
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
-#include <linux/autoconf.h>
+
#include <linux/types.h>
#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
#include <linux/pci.h>
+
#include <asm/io.h>
/*
ide_hwif_t *hwif = NULL;
ide_drive_t *drive;
int i, rc;
+ u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
rc = pci_enable_device(dev);
if (rc) {
hw.irq = dev->irq;
hw.chipset = ide_pci; /* this enables IRQ sharing */
- rc = ide_register_hw(&hw, &ide_undecoded_slave, &hwif);
- if (rc < 0) {
- printk(KERN_ERR "delkin_cb: ide_register_hw failed (%d)\n", rc);
- pci_disable_device(dev);
- return -ENODEV;
- }
+ hwif = ide_deprecated_find_port(hw.io_ports[IDE_DATA_OFFSET]);
+ if (hwif == NULL)
+ goto out_disable;
+
+ i = hwif->index;
+
+ if (hwif->present)
+ ide_unregister(i, 0, 0);
+ else if (!hwif->hold)
+ ide_init_port_data(hwif, i);
+
+ ide_init_port_hw(hwif, &hw);
+ hwif->quirkproc = &ide_undecoded_slave;
+
+ idx[0] = i;
+
+ ide_device_add(idx, NULL);
+
+ if (!hwif->present)
+ goto out_disable;
+
pci_set_drvdata(dev, hwif);
hwif->dev = &dev->dev;
drive = &hwif->drives[0];
drive->unmask = 1;
}
return 0;
+
+out_disable:
+ printk(KERN_ERR "delkin_cb: no IDE devices found\n");
+ pci_disable_device(dev);
+ return -ENODEV;
}
static void
ide_hwif_t *hwif = pci_get_drvdata(dev);
if (hwif)
- ide_unregister(hwif->index);
+ ide_unregister(hwif->index, 0, 0);
+
pci_disable_device(dev);
}
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>
-#include <asm/io.h>
-
static int ide_generic_all; /* Set to claim all devices */
/*
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
#define HPT343_DEBUG_DRIVE_INFO 0
static void hpt34x_set_mode(ide_drive_t *drive, const u8 speed)
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
-
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/io.h>
-#include <asm/irq.h>
/* various tuning parameters */
#define HPT_RESET_STATE_ENGINE
return dev->irq;
}
+static u8 __devinit hpt3xx_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ struct hpt_info *info = pci_get_drvdata(dev);
+ u8 chip_type = info->chip_type;
+ u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
+
+ /*
+ * The HPT37x uses the CBLID pins as outputs for MA15/MA16
+ * address lines to access an external EEPROM. To read valid
+ * cable detect state the pins must be enabled as inputs.
+ */
+ if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
+ /*
+ * HPT374 PCI function 1
+ * - set bit 15 of reg 0x52 to enable TCBLID as input
+ * - set bit 15 of reg 0x56 to enable FCBLID as input
+ */
+ u8 mcr_addr = hwif->select_data + 2;
+ u16 mcr;
+
+ pci_read_config_word(dev, mcr_addr, &mcr);
+ pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
+ /* now read cable id register */
+ pci_read_config_byte(dev, 0x5a, &scr1);
+ pci_write_config_word(dev, mcr_addr, mcr);
+ } else if (chip_type >= HPT370) {
+ /*
+ * HPT370/372 and 374 pcifn 0
+ * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
+ */
+ u8 scr2 = 0;
+
+ pci_read_config_byte(dev, 0x5b, &scr2);
+ pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
+ /* now read cable id register */
+ pci_read_config_byte(dev, 0x5a, &scr1);
+ pci_write_config_byte(dev, 0x5b, scr2);
+ } else
+ pci_read_config_byte(dev, 0x5a, &scr1);
+
+ return (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct hpt_info *info = pci_get_drvdata(dev);
int serialize = HPT_SERIALIZE_IO;
- u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
u8 chip_type = info->chip_type;
u8 new_mcr, old_mcr = 0;
hwif->udma_filter = &hpt3xx_udma_filter;
hwif->mdma_filter = &hpt3xx_mdma_filter;
+ hwif->cable_detect = hpt3xx_cable_detect;
+
/*
* HPT3xxN chips have some complications:
*
if (hwif->dma_base == 0)
return;
- /*
- * The HPT37x uses the CBLID pins as outputs for MA15/MA16
- * address lines to access an external EEPROM. To read valid
- * cable detect state the pins must be enabled as inputs.
- */
- if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
- /*
- * HPT374 PCI function 1
- * - set bit 15 of reg 0x52 to enable TCBLID as input
- * - set bit 15 of reg 0x56 to enable FCBLID as input
- */
- u8 mcr_addr = hwif->select_data + 2;
- u16 mcr;
-
- pci_read_config_word (dev, mcr_addr, &mcr);
- pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
- /* now read cable id register */
- pci_read_config_byte (dev, 0x5a, &scr1);
- pci_write_config_word(dev, mcr_addr, mcr);
- } else if (chip_type >= HPT370) {
- /*
- * HPT370/372 and 374 pcifn 0
- * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
- */
- u8 scr2 = 0;
-
- pci_read_config_byte (dev, 0x5b, &scr2);
- pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
- /* now read cable id register */
- pci_read_config_byte (dev, 0x5a, &scr1);
- pci_write_config_byte(dev, 0x5b, scr2);
- } else
- pci_read_config_byte (dev, 0x5a, &scr1);
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
-
if (chip_type >= HPT374) {
hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
hwif->ide_dma_end = &hpt374_ide_dma_end;
#include <linux/types.h>
#include <linux/module.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
-#include <asm/io.h>
-
/**
* it8213_set_pio_mode - set host controller for PIO mode
* @drive: drive
}
}
+static u8 __devinit it8213_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ u8 reg42h = 0;
+
+ pci_read_config_byte(dev, 0x42, ®42h);
+
+ return (reg42h & 0x02) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
/**
* init_hwif_it8213 - set up hwif structs
* @hwif: interface to set up
static void __devinit init_hwif_it8213(ide_hwif_t *hwif)
{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- u8 reg42h = 0;
-
hwif->set_dma_mode = &it8213_set_dma_mode;
hwif->set_pio_mode = &it8213_set_pio_mode;
- if (!hwif->dma_base)
- return;
-
- pci_read_config_byte(dev, 0x42, ®42h);
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = (reg42h & 0x02) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+ hwif->cable_detect = it8213_cable_detect;
}
#include <linux/types.h>
#include <linux/module.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
-#include <asm/io.h>
-
struct it821x_dev
{
unsigned int smart:1, /* Are we in smart raid mode */
} else
hwif->host_flags |= IDE_HFLAG_NO_SET_MODE;
+ hwif->cable_detect = ata66_it821x;
+
if (hwif->dma_base == 0)
return;
hwif->ultra_mask = ATA_UDMA6;
hwif->mwdma_mask = ATA_MWDMA2;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_it821x(hwif);
}
static void __devinit it8212_disable_raid(struct pci_dev *dev)
#include <linux/types.h>
#include <linux/module.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
-#include <asm/io.h>
-
typedef enum {
PORT_PATA0 = 0,
PORT_PATA1 = 1,
hwif->set_pio_mode = &jmicron_set_pio_mode;
hwif->set_dma_mode = &jmicron_set_dma_mode;
- if (hwif->dma_base == 0)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_jmicron(hwif);
+ hwif->cable_detect = ata66_jmicron;
}
static const struct ide_port_info jmicron_chipset __devinitdata = {
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
#include <linux/interrupt.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
spin_unlock_irqrestore(&opti621_lock, flags);
}
+static void __devinit opti621_port_init_devs(ide_hwif_t *hwif)
+{
+ hwif->drives[0].drive_data = PIO_DONT_KNOW;
+ hwif->drives[1].drive_data = PIO_DONT_KNOW;
+}
+
/*
* init_hwif_opti621() is called once for each hwif found at boot.
*/
static void __devinit init_hwif_opti621 (ide_hwif_t *hwif)
{
- hwif->drives[0].drive_data = PIO_DONT_KNOW;
- hwif->drives[1].drive_data = PIO_DONT_KNOW;
-
+ hwif->port_init_devs = opti621_port_init_devs;
hwif->set_pio_mode = &opti621_set_pio_mode;
}
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
-#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
#include <asm/io.h>
-#include <asm/irq.h>
#ifdef CONFIG_PPC_PMAC
#include <asm/prom.h>
}
}
-static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
+static u8 __devinit pdcnew_cable_detect(ide_hwif_t *hwif)
{
if (get_indexed_reg(hwif, 0x0b) & 0x04)
return ATA_CBL_PATA40;
hwif->quirkproc = &pdcnew_quirkproc;
hwif->resetproc = &pdcnew_reset;
- if (hwif->dma_base == 0)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = pdcnew_cable_detect(hwif);
+ hwif->cable_detect = pdcnew_cable_detect;
}
static struct pci_dev * __devinit pdc20270_get_dev2(struct pci_dev *dev)
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
-#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
#include <asm/io.h>
-#include <asm/irq.h>
#define PDC202XX_DEBUG_DRIVE_INFO 0
pdc202xx_set_mode(drive, XFER_PIO_0 + pio);
}
-static u8 pdc202xx_old_cable_detect (ide_hwif_t *hwif)
+static u8 __devinit pdc2026x_old_cable_detect(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
- u16 CIS = 0, mask = (hwif->channel) ? (1<<11) : (1<<10);
+ u16 CIS, mask = hwif->channel ? (1 << 11) : (1 << 10);
pci_read_config_word(dev, 0x50, &CIS);
hwif->quirkproc = &pdc202xx_quirkproc;
- if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
+ if (dev->device != PCI_DEVICE_ID_PROMISE_20246) {
hwif->resetproc = &pdc202xx_reset;
+ hwif->cable_detect = pdc2026x_old_cable_detect;
+ }
+
if (hwif->dma_base == 0)
return;
hwif->dma_timeout = &pdc202xx_dma_timeout;
if (dev->device != PCI_DEVICE_ID_PROMISE_20246) {
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = pdc202xx_old_cable_detect(hwif);
-
hwif->dma_start = &pdc202xx_old_ide_dma_start;
hwif->ide_dma_end = &pdc202xx_old_ide_dma_end;
}
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
-#include <linux/delay.h>
#include <linux/init.h>
#include <asm/io.h>
hwif->set_pio_mode = &piix_set_pio_mode;
hwif->set_dma_mode = &piix_set_dma_mode;
+ hwif->cable_detect = piix_cable_detect;
+
if (!hwif->dma_base)
return;
- if (hwif->ultra_mask & 0x78) {
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = piix_cable_detect(hwif);
- }
-
if (no_piix_dma)
hwif->ultra_mask = hwif->mwdma_mask = hwif->swdma_mask = 0;
}
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>
-#include <asm/io.h>
-
static void __devinit init_hwif_rz1000 (ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
} else {
if (hwif->mate)
hwif->mate->serialized = hwif->serialized = 1;
- hwif->drives[0].no_unmask = 1;
- hwif->drives[1].no_unmask = 1;
+ hwif->host_flags |= IDE_HFLAG_NO_UNMASK_IRQS;
printk(KERN_INFO "%s: serialized, disabled unmasking "
"(buggy RZ1000/RZ1001)\n", hwif->name);
}
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
-#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
#include <linux/pm.h>
+
#include <asm/io.h>
-#include <asm/irq.h>
#define SC1200_REV_A 0x00
#define SC1200_REV_B1 0x01
init_mmio_iops_scc(hwif);
}
+static u8 __devinit scc_cable_detect(ide_hwif_t *hwif)
+{
+ return ATA_CBL_PATA80;
+}
+
/**
* init_hwif_scc - set up hwif
* @hwif: interface to set up
else
hwif->ultra_mask = ATA_UDMA5; /* 100MHz */
- /* we support 80c cable only. */
- hwif->cbl = ATA_CBL_PATA80;
+ hwif->cable_detect = scc_cable_detect;
}
#define DECLARE_SCC_DEV(name_str) \
hwif->dmatable_cpu = NULL;
}
- ide_unregister(hwif->index);
+ ide_unregister(hwif->index, 0, 0);
hwif->chipset = ide_unknown;
iounmap((void*)ports->dma);
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
-#include <linux/delay.h>
#include <asm/io.h>
hwif->set_dma_mode = &svwks_set_dma_mode;
hwif->udma_filter = &svwks_udma_filter;
- if (!hwif->dma_base)
- return;
-
- if (dev->device != PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_svwks(hwif);
- }
+ if (dev->device != PCI_DEVICE_ID_SERVERWORKS_OSB4IDE)
+ hwif->cable_detect = ata66_svwks;
}
#define IDE_HFLAGS_SVWKS \
#include <linux/hdreg.h>
#include <linux/init.h>
#include <linux/kernel.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/blkdev.h>
#include <linux/scatterlist.h>
ide_init_sgiioc4(ide_hwif_t * hwif)
{
hwif->mmio = 1;
- hwif->pio_mask = 0x00;
hwif->set_pio_mode = NULL; /* Sets timing for PIO mode */
hwif->set_dma_mode = &sgiioc4_set_dma_mode;
hwif->selectproc = NULL;/* Use the default routine to select drive */
if (hwif->dma_base == 0)
return;
- hwif->mwdma_mask = ATA_MWDMA2_ONLY;
-
hwif->dma_host_set = &sgiioc4_dma_host_set;
hwif->dma_setup = &sgiioc4_ide_dma_setup;
hwif->dma_start = &sgiioc4_ide_dma_start;
hwif->dma_timeout = &ide_dma_timeout;
}
+static const struct ide_port_info sgiioc4_port_info __devinitdata = {
+ .chipset = ide_pci,
+ .host_flags = IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
+ IDE_HFLAG_NO_AUTOTUNE,
+ .mwdma_mask = ATA_MWDMA2_ONLY,
+};
+
static int __devinit
sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
{
int h;
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
hw_regs_t hw;
+ struct ide_port_info d = sgiioc4_port_info;
/*
* Find an empty HWIF; if none available, return -ENOMEM.
ide_init_port_hw(hwif, &hw);
hwif->dev = &dev->dev;
- hwif->channel = 0; /* Single Channel chip */
/* The IOC4 uses MMIO rather than Port IO. */
default_hwif_mmiops(hwif);
/* Initializing chipset IRQ Registers */
writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4));
- if (dma_base == 0 || ide_dma_sgiioc4(hwif, dma_base))
+ if (dma_base == 0 || ide_dma_sgiioc4(hwif, dma_base)) {
printk(KERN_INFO "%s: %s Bus-Master DMA disabled\n",
hwif->name, DRV_NAME);
+ d.mwdma_mask = 0;
+ }
ide_init_sgiioc4(hwif);
idx[0] = hwif->index;
- if (ide_device_add(idx))
+ if (ide_device_add(idx, &d))
return -EIO;
return 0;
#include <linux/types.h>
#include <linux/module.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
{
ide_hwif_t *hwif = HWIF(drive);
unsigned long addr = siimage_selreg(hwif, 0x1);
+ void __iomem *sata_error_addr
+ = (void __iomem *)hwif->sata_scr[SATA_ERROR_OFFSET];
- if (SATA_ERROR_REG) {
+ if (sata_error_addr) {
unsigned long base = (unsigned long)hwif->hwif_data;
-
u32 ext_stat = readl((void __iomem *)(base + 0x10));
u8 watchdog = 0;
+
if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
- u32 sata_error = readl((void __iomem *)SATA_ERROR_REG);
- writel(sata_error, (void __iomem *)SATA_ERROR_REG);
+ u32 sata_error = readl(sata_error_addr);
+
+ writel(sata_error, sata_error_addr);
watchdog = (sata_error & 0x00680000) ? 1 : 0;
printk(KERN_WARNING "%s: sata_error = 0x%08x, "
"watchdog = %d, %s\n",
static int sil_sata_reset_poll(ide_drive_t *drive)
{
- if (SATA_STATUS_REG) {
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
+ void __iomem *sata_status_addr
+ = (void __iomem *)hwif->sata_scr[SATA_STATUS_OFFSET];
- /* SATA_STATUS_REG is valid only when in MMIO mode */
- if ((readl((void __iomem *)SATA_STATUS_REG) & 0x03) != 0x03) {
+ if (sata_status_addr) {
+ /* SATA Status is available only when in MMIO mode */
+ u32 sata_stat = readl(sata_status_addr);
+
+ if ((sata_stat & 0x03) != 0x03) {
printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
- hwif->name, readl((void __iomem *)SATA_STATUS_REG));
+ hwif->name, sata_stat);
HWGROUP(drive)->polling = 0;
return ide_started;
}
} else
hwif->udma_filter = &sil_pata_udma_filter;
+ hwif->cable_detect = ata66_siimage;
+
if (hwif->dma_base == 0)
return;
if (sata)
hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_siimage(hwif);
-
if (hwif->mmio) {
hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq;
} else {
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
-
-#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
-#include <asm/irq.h>
-
#include "ide-timing.h"
/* registers layout and init values are chipset family dependant */
if (chipset_family >= ATA_133)
hwif->udma_filter = sis5513_ata133_udma_filter;
+ hwif->cable_detect = ata66_sis5513;
+
if (hwif->dma_base == 0)
return;
hwif->ultra_mask = udma_rates[chipset_family];
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_sis5513(hwif);
}
static const struct ide_port_info sis5513_chipset __devinitdata = {
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <asm/io.h>
-#include <asm/dma.h>
#undef DEBUG
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
-#include <linux/delay.h>
#include <linux/init.h>
-#include <asm/io.h>
-
static DEFINE_SPINLOCK(slc90e66_lock);
static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio)
}
}
-static void __devinit init_hwif_slc90e66 (ide_hwif_t *hwif)
+static u8 __devinit slc90e66_cable_detect(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
- u8 reg47 = 0;
- u8 mask = hwif->channel ? 0x01 : 0x02; /* bit0:Primary */
-
- hwif->set_pio_mode = &slc90e66_set_pio_mode;
- hwif->set_dma_mode = &slc90e66_set_dma_mode;
+ u8 reg47 = 0, mask = hwif->channel ? 0x01 : 0x02;
pci_read_config_byte(dev, 0x47, ®47);
- if (hwif->dma_base == 0)
- return;
+ /* bit[0(1)]: 0:80, 1:40 */
+ return (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
+static void __devinit init_hwif_slc90e66(ide_hwif_t *hwif)
+{
+ hwif->set_pio_mode = &slc90e66_set_pio_mode;
+ hwif->set_dma_mode = &slc90e66_set_dma_mode;
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- /* bit[0(1)]: 0:80, 1:40 */
- hwif->cbl = (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+ hwif->cable_detect = slc90e66_cable_detect;
}
static const struct ide_port_info slc90e66_chipset __devinitdata = {
return 0;
}
+static u8 __devinit tc86c001_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ unsigned long sc_base = pci_resource_start(dev, 5);
+ u16 scr1 = inw(sc_base + 0x00);
+
+ /*
+ * System Control 1 Register bit 13 (PDIAGN):
+ * 0=80-pin cable, 1=40-pin cable
+ */
+ return (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
hwif->busproc = &tc86c001_busproc;
+ hwif->cable_detect = tc86c001_cable_detect;
+
if (!hwif->dma_base)
return;
hwif->rqsize = 0xffff;
hwif->dma_start = &tc86c001_dma_start;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
- /*
- * System Control 1 Register bit 13 (PDIAGN):
- * 0=80-pin cable, 1=40-pin cable
- */
- scr1 = inw(sc_base + 0x00);
- hwif->cbl = (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
- }
}
static unsigned int __devinit init_chipset_tc86c001(struct pci_dev *dev,
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/blkdev.h>
#include <linux/init.h>
#include <linux/hdreg.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/ide.h>
#include <asm/io.h>
static void trm290_dma_exec_cmd(ide_drive_t *drive, u8 command)
{
- BUG_ON(HWGROUP(drive)->handler != NULL); /* paranoia check */
- ide_set_handler(drive, &ide_dma_intr, WAIT_CMD, NULL);
- /* issue cmd to drive */
- outb(command, IDE_COMMAND_REG);
+ ide_execute_command(drive, command, &ide_dma_intr, WAIT_CMD, NULL);
}
static int trm290_dma_setup(ide_drive_t *drive)
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
#include <linux/dmi.h>
-#include <asm/io.h>
-
#ifdef CONFIG_PPC_CHRP
#include <asm/processor.h>
#endif
hwif->set_pio_mode = &via_set_pio_mode;
hwif->set_dma_mode = &via_set_drive;
- if (!hwif->dma_base)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = via82cxxx_cable_detect(hwif);
+ hwif->cable_detect = via82cxxx_cable_detect;
}
static const struct ide_port_info via82cxxx_chipset __devinitdata = {
#endif
#endif
- ide_device_add(idx);
+ ide_device_add(idx, NULL);
return 0;
}
*/
#define IDE_WAKEUP_DELAY (1*HZ)
-static void pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif);
+static int pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif);
static int pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq);
static void pmac_ide_selectproc(ide_drive_t *drive);
static void pmac_ide_kauai_selectproc(ide_drive_t *drive);
return 0;
}
+static const struct ide_port_info pmac_port_info = {
+ .chipset = ide_pmac,
+ .host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA |
+ IDE_HFLAG_PIO_NO_DOWNGRADE |
+ IDE_HFLAG_POST_SET_MODE |
+ IDE_HFLAG_NO_DMA | /* no SFF-style DMA */
+ IDE_HFLAG_UNMASK_IRQS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+};
+
/*
* Setup, register & probe an IDE channel driven by this driver, this is
* called by one of the 2 probe functions (macio or PCI). Note that a channel
struct device_node *np = pmif->node;
const int *bidp;
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+ struct ide_port_info d = pmac_port_info;
pmif->cable_80 = 0;
pmif->broken_dma = pmif->broken_dma_warn = 0;
- if (of_device_is_compatible(np, "shasta-ata"))
+ if (of_device_is_compatible(np, "shasta-ata")) {
pmif->kind = controller_sh_ata6;
- else if (of_device_is_compatible(np, "kauai-ata"))
+ d.udma_mask = ATA_UDMA6;
+ } else if (of_device_is_compatible(np, "kauai-ata")) {
pmif->kind = controller_un_ata6;
- else if (of_device_is_compatible(np, "K2-UATA"))
+ d.udma_mask = ATA_UDMA5;
+ } else if (of_device_is_compatible(np, "K2-UATA")) {
pmif->kind = controller_k2_ata6;
- else if (of_device_is_compatible(np, "keylargo-ata")) {
- if (strcmp(np->name, "ata-4") == 0)
+ d.udma_mask = ATA_UDMA5;
+ } else if (of_device_is_compatible(np, "keylargo-ata")) {
+ if (strcmp(np->name, "ata-4") == 0) {
pmif->kind = controller_kl_ata4;
- else
+ d.udma_mask = ATA_UDMA4;
+ } else
pmif->kind = controller_kl_ata3;
- } else if (of_device_is_compatible(np, "heathrow-ata"))
+ } else if (of_device_is_compatible(np, "heathrow-ata")) {
pmif->kind = controller_heathrow;
- else {
+ } else {
pmif->kind = controller_ohare;
pmif->broken_dma = 1;
}
/* Tell common code _not_ to mess with resources */
hwif->mmio = 1;
hwif->hwif_data = pmif;
- hw->chipset = ide_pmac;
ide_init_port_hw(hwif, hw);
hwif->noprobe = pmif->mediabay;
hwif->hold = pmif->mediabay;
hwif->cbl = pmif->cable_80 ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
- hwif->drives[0].unmask = 1;
- hwif->drives[1].unmask = 1;
- hwif->drives[0].autotune = IDE_TUNE_AUTO;
- hwif->drives[1].autotune = IDE_TUNE_AUTO;
- hwif->host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA |
- IDE_HFLAG_PIO_NO_DOWNGRADE |
- IDE_HFLAG_POST_SET_MODE;
- hwif->pio_mask = ATA_PIO4;
hwif->set_pio_mode = pmac_ide_set_pio_mode;
if (pmif->kind == controller_un_ata6
|| pmif->kind == controller_k2_ata6
#endif /* CONFIG_PMAC_MEDIABAY */
#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
+ if (pmif->cable_80 == 0)
+ d.udma_mask &= ATA_UDMA2;
/* has a DBDMA controller channel */
- if (pmif->dma_regs)
- pmac_ide_setup_dma(pmif, hwif);
-#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
+ if (pmif->dma_regs == 0 || pmac_ide_setup_dma(pmif, hwif) < 0)
+#endif
+ d.udma_mask = d.mwdma_mask = 0;
idx[0] = hwif->index;
- ide_device_add(idx);
+ ide_device_add(idx, &d);
return 0;
}
* Allocate the data structures needed for using DMA with an interface
* and fill the proper list of functions pointers
*/
-static void __devinit
-pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
+static int __devinit pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
* DMA routines ...
*/
if (dev == NULL)
- return;
+ return -ENODEV;
/*
* Allocate space for the DBDMA commands.
* The +2 is +1 for the stop command and +1 to allow for
if (pmif->dma_table_cpu == NULL) {
printk(KERN_ERR "%s: unable to allocate DMA command list\n",
hwif->name);
- return;
+ return -ENOMEM;
}
hwif->sg_max_nents = MAX_DCMDS;
hwif->dma_timeout = &ide_dma_timeout;
hwif->dma_lost_irq = &pmac_ide_dma_lost_irq;
- switch(pmif->kind) {
- case controller_sh_ata6:
- hwif->ultra_mask = pmif->cable_80 ? 0x7f : 0x07;
- hwif->mwdma_mask = 0x07;
- hwif->swdma_mask = 0x00;
- break;
- case controller_un_ata6:
- case controller_k2_ata6:
- hwif->ultra_mask = pmif->cable_80 ? 0x3f : 0x07;
- hwif->mwdma_mask = 0x07;
- hwif->swdma_mask = 0x00;
- break;
- case controller_kl_ata4:
- hwif->ultra_mask = pmif->cable_80 ? 0x1f : 0x07;
- hwif->mwdma_mask = 0x07;
- hwif->swdma_mask = 0x00;
- break;
- default:
- hwif->ultra_mask = 0x00;
- hwif->mwdma_mask = 0x07;
- hwif->swdma_mask = 0x00;
- break;
- }
+ return 0;
}
#endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
* ide_hwif_configure - configure an IDE interface
* @dev: PCI device holding interface
* @d: IDE port info
- * @mate: Paired interface if any
+ * @port: port number
+ * @irq: PCI IRQ
*
* Perform the initial set up for the hardware interface structure. This
* is done per interface port rather than per PCI device. There may be
* Returns the new hardware interface structure, or NULL on a failure
*/
-static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, const struct ide_port_info *d, ide_hwif_t *mate, int port, int irq)
+static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev,
+ const struct ide_port_info *d,
+ unsigned int port, int irq)
{
unsigned long ctl = 0, base = 0;
ide_hwif_t *hwif;
hwif->dev = &dev->dev;
hwif->cds = d;
- hwif->channel = port;
- if (mate) {
- hwif->mate = mate;
- mate->mate = hwif;
- }
return hwif;
}
+#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
/**
* ide_hwif_setup_dma - configure DMA interface
- * @dev: PCI device
- * @d: IDE port info
* @hwif: IDE interface
+ * @d: IDE port info
*
* Set up the DMA base for the interface. Enable the master bits as
* necessary and attempt to bring the device DMA into a ready to use
* state
*/
-static void ide_hwif_setup_dma(struct pci_dev *dev, const struct ide_port_info *d, ide_hwif_t *hwif)
+void ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
{
-#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
u16 pcicmd;
pci_read_config_word(dev, PCI_COMMAND, &pcicmd);
"(BIOS)\n", hwif->name, d->name);
}
}
-#endif /* CONFIG_BLK_DEV_IDEDMA_PCI*/
}
+#endif /* CONFIG_BLK_DEV_IDEDMA_PCI */
/**
* ide_setup_pci_controller - set up IDE PCI
void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, int pciirq, u8 *idx)
{
int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port;
- ide_hwif_t *hwif, *mate = NULL;
+ ide_hwif_t *hwif;
u8 tmp;
/*
continue; /* port not enabled */
}
- if ((hwif = ide_hwif_configure(dev, d, mate, port, pciirq)) == NULL)
+ hwif = ide_hwif_configure(dev, d, port, pciirq);
+ if (hwif == NULL)
continue;
*(idx + port) = hwif->index;
-
- if (d->init_iops)
- d->init_iops(hwif);
-
- if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0)
- ide_hwif_setup_dma(dev, d, hwif);
-
- if ((!hwif->irq && (d->host_flags & IDE_HFLAG_LEGACY_IRQS)) ||
- (d->host_flags & IDE_HFLAG_FORCE_LEGACY_IRQS))
- hwif->irq = port ? 15 : 14;
-
- hwif->host_flags = d->host_flags;
- hwif->pio_mask = d->pio_mask;
-
- if ((d->host_flags & IDE_HFLAG_SERIALIZE) && hwif->mate)
- hwif->mate->serialized = hwif->serialized = 1;
-
- if (d->host_flags & IDE_HFLAG_IO_32BIT) {
- hwif->drives[0].io_32bit = 1;
- hwif->drives[1].io_32bit = 1;
- }
-
- if (d->host_flags & IDE_HFLAG_UNMASK_IRQS) {
- hwif->drives[0].unmask = 1;
- hwif->drives[1].unmask = 1;
- }
-
- if (hwif->dma_base) {
- hwif->swdma_mask = d->swdma_mask;
- hwif->mwdma_mask = d->mwdma_mask;
- hwif->ultra_mask = d->udma_mask;
- }
-
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
-
- if (d->host_flags & IDE_HFLAG_RQSIZE_256)
- hwif->rqsize = 256;
-
- if (d->init_hwif)
- /* Call chipset-specific routine
- * for each enabled hwif
- */
- d->init_hwif(hwif);
-
- mate = hwif;
}
}
ret = do_ide_setup_pci_device(dev, d, &idx[0], 1);
if (ret >= 0)
- ide_device_add(idx);
+ ide_device_add(idx, d);
return ret;
}
goto out;
}
- ide_device_add(idx);
+ ide_device_add(idx, d);
out:
return ret;
}
orb->misc |= ORB_SET_DIRECTION(orb_direction);
/* special case if only one element (and less than 64KB in size) */
- if ((scsi_use_sg == 1) &&
- (sg_dma_len(sg) <= SBP2_MAX_SG_ELEMENT_LENGTH)) {
+ if (scsi_use_sg == 1 && sg->length <= SBP2_MAX_SG_ELEMENT_LENGTH) {
- cmd->dma_size = sg_dma_len(sg);
+ cmd->dma_size = sg->length;
cmd->dma_type = CMD_DMA_PAGE;
cmd->cmd_dma = dma_map_page(hi->host->device.parent,
sg_page(sg), sg->offset,
#include <linux/init.h>
#include <linux/gameport.h>
#include <linux/wait.h>
-#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/input.h>
-#include <linux/irq.h>
#include <asm/portmux.h>
#include <asm/mach/bf54x_keys.h>
*/
#include <linux/device.h>
#include <linux/errno.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/input.h>
/*
* gscps2_writeb_output() - write a byte to the port
*
- * returns 1 on sucess, 0 on error
+ * returns 1 on success, 0 on error
*/
static inline int gscps2_writeb_output(struct gscps2port *ps2port, u8 data)
return (1) ;
}
/*
- * Check if we registered whith an old maint driver (see debuglib.h)
+ * Check if we registered with an old maint driver (see debuglib.h)
*/
if ( myDriverDebugHandle.dbg_end != NULL
/* location of 'dbg_prt' in _OldDbgHandle_ struct */
} }
#endif
/*
- * For event level debug use a separate define, the paramete are
+ * For event level debug use a separate define, the parameter are
* different and cause compiler errors on some systems.
*/
#define DBG_EVL_ID(args) \
a->ram_in(a, &RcIn->RcId),
a->ram_in(a, &RcIn->RcCh),
a->ram_inw(a, &RcIn->Reference),
- tmp[0], /* type of extended informtion */
+ tmp[0], /* type of extended information */
tmp[1]); /* extended information */
a->ram_out(a, &RcIn->Rc, 0);
}
/* b = IE1 */
/* S = IE1 length + cont. */
/* b = IE2 */
- /* S = IE2 lenght + cont. */
+ /* S = IE2 length + cont. */
sendf(plci->appl,
_MANUFACTURER_I,
Id,
}
ctrl = &cinfo->capi_ctrl;
if(len < CAPI_MSG_BASELEN) {
- printk(KERN_ERR "HYSDN Card%d: invalid CAPI-message, lenght %d!\n",
+ printk(KERN_ERR "HYSDN Card%d: invalid CAPI-message, length %d!\n",
card->myid, len);
return;
}
/*D:130
* Device configurations
*
- * The configuration information for a device consists of a series of fields.
- * We don't really care what they are: the Launcher set them up, and the driver
- * will look at them during setup.
+ * The configuration information for a device consists of one or more
+ * virtqueues, a feature bitmaks, and some configuration bytes. The
+ * configuration bytes don't really matter to us: the Launcher sets them up, and
+ * the driver will look at them during setup.
*
- * For us these fields come immediately after that device's descriptor in the
- * lguest_devices page.
- *
- * Each field starts with a "type" byte, a "length" byte, then that number of
- * bytes of configuration information. The device descriptor tells us the
- * total configuration length so we know when we've reached the last field. */
+ * A convenient routine to return the device's virtqueue config array:
+ * immediately after the descriptor. */
+static struct lguest_vqconfig *lg_vq(const struct lguest_device_desc *desc)
+{
+ return (void *)(desc + 1);
+}
-/* type + length bytes */
-#define FHDR_LEN 2
+/* The features come immediately after the virtqueues. */
+static u8 *lg_features(const struct lguest_device_desc *desc)
+{
+ return (void *)(lg_vq(desc) + desc->num_vq);
+}
-/* This finds the first field of a given type for a device's configuration. */
-static void *lg_find(struct virtio_device *vdev, u8 type, unsigned int *len)
+/* The config space comes after the two feature bitmasks. */
+static u8 *lg_config(const struct lguest_device_desc *desc)
{
- struct lguest_device_desc *desc = to_lgdev(vdev)->desc;
- int i;
-
- for (i = 0; i < desc->config_len; i += FHDR_LEN + desc->config[i+1]) {
- if (desc->config[i] == type) {
- /* Mark it used, so Host can know we looked at it, and
- * also so we won't find the same one twice. */
- desc->config[i] |= 0x80;
- /* Remember, the second byte is the length. */
- *len = desc->config[i+1];
- /* We return a pointer to the field header. */
- return desc->config + i;
- }
- }
+ return lg_features(desc) + desc->feature_len * 2;
+}
- /* Not found: return NULL for failure. */
- return NULL;
+/* The total size of the config page used by this device (incl. desc) */
+static unsigned desc_size(const struct lguest_device_desc *desc)
+{
+ return sizeof(*desc)
+ + desc->num_vq * sizeof(struct lguest_vqconfig)
+ + desc->feature_len * 2
+ + desc->config_len;
+}
+
+/* This tests (and acknowleges) a feature bit. */
+static bool lg_feature(struct virtio_device *vdev, unsigned fbit)
+{
+ struct lguest_device_desc *desc = to_lgdev(vdev)->desc;
+ u8 *features;
+
+ /* Obviously if they ask for a feature off the end of our feature
+ * bitmap, it's not set. */
+ if (fbit / 8 > desc->feature_len)
+ return false;
+
+ /* The feature bitmap comes after the virtqueues. */
+ features = lg_features(desc);
+ if (!(features[fbit / 8] & (1 << (fbit % 8))))
+ return false;
+
+ /* We set the matching bit in the other half of the bitmap to tell the
+ * Host we want to use this feature. We don't use this yet, but we
+ * could in future. */
+ features[desc->feature_len + fbit / 8] |= (1 << (fbit % 8));
+ return true;
}
/* Once they've found a field, getting a copy of it is easy. */
-static void lg_get(struct virtio_device *vdev, void *token,
+static void lg_get(struct virtio_device *vdev, unsigned int offset,
void *buf, unsigned len)
{
- /* Check they didn't ask for more than the length of the field! */
- BUG_ON(len > ((u8 *)token)[1]);
- memcpy(buf, token + FHDR_LEN, len);
+ struct lguest_device_desc *desc = to_lgdev(vdev)->desc;
+
+ /* Check they didn't ask for more than the length of the config! */
+ BUG_ON(offset + len > desc->config_len);
+ memcpy(buf, lg_config(desc) + offset, len);
}
/* Setting the contents is also trivial. */
-static void lg_set(struct virtio_device *vdev, void *token,
+static void lg_set(struct virtio_device *vdev, unsigned int offset,
const void *buf, unsigned len)
{
- BUG_ON(len > ((u8 *)token)[1]);
- memcpy(token + FHDR_LEN, buf, len);
+ struct lguest_device_desc *desc = to_lgdev(vdev)->desc;
+
+ /* Check they didn't ask for more than the length of the config! */
+ BUG_ON(offset + len > desc->config_len);
+ memcpy(lg_config(desc) + offset, buf, len);
}
/* The operations to get and set the status word just access the status field
static void lg_set_status(struct virtio_device *vdev, u8 status)
{
+ BUG_ON(!status);
to_lgdev(vdev)->desc->status = status;
}
+/* To reset the device, we (ab)use the NOTIFY hypercall, with the descriptor
+ * address of the device. The Host will zero the status and all the
+ * features. */
+static void lg_reset(struct virtio_device *vdev)
+{
+ unsigned long offset = (void *)to_lgdev(vdev)->desc - lguest_devices;
+
+ hcall(LHCALL_NOTIFY, (max_pfn<<PAGE_SHIFT) + offset, 0, 0);
+}
+
/*
* Virtqueues
*
*
* So we provide devices with a "find virtqueue and set it up" function. */
static struct virtqueue *lg_find_vq(struct virtio_device *vdev,
- bool (*callback)(struct virtqueue *vq))
+ unsigned index,
+ void (*callback)(struct virtqueue *vq))
{
+ struct lguest_device *ldev = to_lgdev(vdev);
struct lguest_vq_info *lvq;
struct virtqueue *vq;
- unsigned int len;
- void *token;
int err;
- /* Look for a field of the correct type to mark a virtqueue. Note that
- * if this succeeds, then the type will be changed so it won't be found
- * again, and future lg_find_vq() calls will find the next
- * virtqueue (if any). */
- token = vdev->config->find(vdev, VIRTIO_CONFIG_F_VIRTQUEUE, &len);
- if (!token)
+ /* We must have this many virtqueues. */
+ if (index >= ldev->desc->num_vq)
return ERR_PTR(-ENOENT);
lvq = kmalloc(sizeof(*lvq), GFP_KERNEL);
if (!lvq)
return ERR_PTR(-ENOMEM);
- /* Note: we could use a configuration space inside here, just like we
- * do for the device. This would allow expansion in future, because
- * our configuration system is designed to be expansible. But this is
- * way easier. */
- if (len != sizeof(lvq->config)) {
- dev_err(&vdev->dev, "Unexpected virtio config len %u\n", len);
- err = -EIO;
- goto free_lvq;
- }
- /* Make a copy of the "struct lguest_vqconfig" field. We need a copy
- * because the config space might not be aligned correctly. */
- vdev->config->get(vdev, token, &lvq->config, sizeof(lvq->config));
+ /* Make a copy of the "struct lguest_vqconfig" entry, which sits after
+ * the descriptor. We need a copy because the config space might not
+ * be aligned correctly. */
+ memcpy(&lvq->config, lg_vq(ldev->desc)+index, sizeof(lvq->config));
+ printk("Mapping virtqueue %i addr %lx\n", index,
+ (unsigned long)lvq->config.pfn << PAGE_SHIFT);
/* Figure out how many pages the ring will take, and map that memory */
lvq->pages = lguest_map((unsigned long)lvq->config.pfn << PAGE_SHIFT,
DIV_ROUND_UP(vring_size(lvq->config.num,
/* The ops structure which hooks everything together. */
static struct virtio_config_ops lguest_config_ops = {
- .find = lg_find,
+ .feature = lg_feature,
.get = lg_get,
.set = lg_set,
.get_status = lg_get_status,
.set_status = lg_set_status,
+ .reset = lg_reset,
.find_vq = lg_find_vq,
.del_vq = lg_del_vq,
};
struct lguest_device_desc *d;
/* We start at the page beginning, and skip over each entry. */
- for (i = 0; i < PAGE_SIZE; i += sizeof(*d) + d->config_len) {
+ for (i = 0; i < PAGE_SIZE; i += desc_size(d)) {
d = lguest_devices + i;
/* Once we hit a zero, stop. */
if (d->type == 0)
break;
+ printk("Device at %i has size %u\n", i, desc_size(d));
add_lguest_device(d);
}
}
#include <linux/completion.h>
#include <linux/device.h>
#include <linux/kthread.h>
+#include <linux/platform_device.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
if (bay->cd_index >= 0) {
printk(KERN_DEBUG "Unregistering mb %d ide, index:%d\n", i,
bay->cd_index);
- ide_unregister(bay->cd_index);
+ ide_unregister(bay->cd_index, 1, 1);
bay->cd_index = -1;
}
if (bay->cd_retry) {
* - maybe add timeout to commands ?
* - blocking version of time functions
* - polling version of i2c commands (including timer that works with
- * interrutps off)
+ * interrupts off)
* - maybe avoid some data copies with i2c by directly using the smu cmd
* buffer and a lower level internal interface
* - understand SMU -> CPU events and implement reception of them via
/* CPU might have brought back the cache line, so we need
* to flush again before peeking at the SMU response. We
* flush the entire buffer for now as we haven't read the
- * reply lenght (it's only 2 cache lines anyway)
+ * reply length (it's only 2 cache lines anyway)
*/
faddr = (unsigned long)smu->cmd_buf;
flush_inval_dcache_range(faddr, faddr + 256);
}
dev->revision &= 0xf;
- /* remap the memory from virtual to physical adress */
+ /* remap the memory from virtual to physical address */
err = pci_request_region(pci, 0, "saa7146");
if (err < 0)
drop = 1;
/* else: destination address matches the MAC address of our receiver device */
}
- /* else: promiscious mode; pass everything up the stack */
+ /* else: promiscuous mode; pass everything up the stack */
if (drop) {
#ifdef ULE_DEBUG
gpio_bits(0x200,0x000);
mdelay(1);
- /* create a new conection */
+ /* create a new connection */
gpio_bits(0x480,0x080);
gpio_bits(0x480,0x480);
mdelay(1);
// initialize
err = indycam_write_block(client, 0, sizeof(initseq), (u8 *)&initseq);
if (err) {
- printk(KERN_ERR "IndyCam initalization failed\n");
+ printk(KERN_ERR "IndyCam initialization failed\n");
err = -EIO;
goto out_detach_client;
}
.get_frequency = microtune_get_frequency,
};
-// Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
+// Initialization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
static int mt2032_init(struct dvb_frontend *fe)
{
struct microtune_priv *priv = fe->tuner_priv;
might want to increase this - however the driver operation will not
be impaired if it is too small. Instead additional units just
won't have an ID assigned and it might not be possible to specify
- module paramters for those extra units. */
+ module parameters for those extra units. */
#define PVR_NUM 20
#endif /* __PVRUSB2_H */
}
if (pdev->read_frame != NULL) {
- /* Decompression is a lenghty process, so it's outside of the lock.
+ /* Decompression is a lengthy process, so it's outside of the lock.
This gives the isoc_handler the opportunity to fill more frames
in the mean time.
*/
dprintk("adr:0x%02x, i:%d, o:%d, g:%d\n", client->addr, i, o, g);
- /* check if the paramters are valid */
+ /* check if the parameters are valid */
if (i < 1 || i > 6 || o < 1 || o > 4 || g < 0 || g > 6 || g % 2 != 0)
return -1;
unsigned int p;
/*
- the registers controling gain are 8 bit of which
+ the registers controlling gain are 8 bit of which
we affect only the last 4 bits with our gain.
we know that if saturation is 0, (unsaturated) then
we're grayscale (center axis of the colour cone) so
/* Function prototypes */
static void usbvision_release(struct usb_usbvision *usbvision);
-/* Default initalization of device driver parameters */
+/* Default initialization of device driver parameters */
/* Set the default format for ISOC endpoint */
static int isocMode = ISOC_MODE_COMPRESS;
/* Set the default Debug Mode of the device driver */
}
/* -----------------------------------------------------------------------
- * Client managment code
+ * Client management code
*/
/*
}
/*
- * Scan for a Buz card (actually for the PCI contoler ZR36057),
+ * Scan for a Buz card (actually for the PCI controller ZR36057),
* request the irq and map the io memory
*/
static int __devinit
udelay(1);
if (i++ > 200000) { // 200ms, there is for sure something wrong!!!
dprintk(1,
- "%s: timout at wait_end (last status: 0x%02x)\n",
+ "%s: timeout at wait_end (last status: 0x%02x)\n",
ptr->name, ptr->status1);
break;
}
udelay(1);
if (i++ > 200000) { // 200ms, there is for sure something wrong!!!
dprintk(1,
- "%s: timout at wait_end (last status: 0x%02x)\n",
+ "%s: timeout at wait_end (last status: 0x%02x)\n",
ptr->name, ptr->status);
break;
}
#define PL_LOGINFO_SUB_CODE_FRAME_XFER_ERROR (0x00000400) /* Bits 0-3 encode Transport Status Register (offset 0x08) */
/* Bit 0 is Status Bit 0: FrameXferErr */
/* Bit 1 & 2 are Status Bits 16 and 17: FrameXmitErrStatus */
- /* Bit 3 is Status Bit 18 WriteDataLenghtGTDataLengthErr */
+ /* Bit 3 is Status Bit 18 WriteDataLengthGTDataLengthErr */
#define PL_LOGINFO_SUB_CODE_TX_FM_CONNECTED_LOW (0x00000500)
#define PL_LOGINFO_SUB_CODE_SATA_NON_NCQ_RW_ERR_BIT_SET (0x00000600)
*
* Outputs: None.
* Return: 0 if successful
- * -EBUSY if previous command timout and IOC reset is not complete.
+ * -EBUSY if previous command timeout and IOC reset is not complete.
* -EFAULT if data unavailable
* -ENODEV if no such device/adapter
* -ETIME if timer expires
*
* Outputs: None.
* Return: 0 if successful
- * -EBUSY if previous command timout and IOC reset is not complete.
+ * -EBUSY if previous command timeout and IOC reset is not complete.
* -EFAULT if data unavailable
* -ENODEV if no such device/adapter
* -ETIME if timer expires
* Outputs: None.
* Return: 0 if successful
* -EFAULT if data unavailable
- * -EBUSY if previous command timout and IOC reset is not complete.
+ * -EBUSY if previous command timeout and IOC reset is not complete.
* -ENODEV if no such device/adapter
* -ETIME if timer expires
* -ENOMEM if memory allocation error
* Outputs: None.
* Return: 0 if successful
* -EFAULT if data unavailable
- * -EBUSY if previous command timout and IOC reset is not complete.
+ * -EBUSY if previous command timeout and IOC reset is not complete.
* -ENODEV if no such device/adapter
* -ETIME if timer expires
* -ENOMEM if memory allocation error
fail_out:
/*
- * Free task managment mf, and corresponding tm flags
+ * Free task management mf, and corresponding tm flags
*/
mpt_free_msg_frame(ioc, mf);
hd->tmPending = 0;
* status block. The status block could then be accessed through
* c->status_block.
*
- * Returns 0 on sucess or negative error code on failure.
+ * Returns 0 on success or negative error code on failure.
*/
int i2o_status_get(struct i2o_controller *c)
{
* hardware restriction. */
if (doc->mfr) {
if (doc->mfr == mfr && doc->id == id)
- return 1; /* This is another the same the first */
+ return 1; /* This is the same as the first */
else
printk(KERN_WARNING
"Flash chip at floor %d, chip %d is different:\n",
*
* 02-12-2002 TG Cleanup of module params
*
- * 02-20-2002 TG adjusted for different rd/wr adress support
+ * 02-20-2002 TG adjusted for different rd/wr address support
* added support for read device ready/busy line
* added page_cache
*
goto out;
}
- /* map physical adress */
+ /* map physical address */
autcpu12_fio_base = ioremap(AUTCPU12_PHYS_SMC, SZ_1K);
if (!autcpu12_fio_base) {
printk("Ioremap autcpu12 SmartMedia Card failed\n");
/* Release resources, unregister device */
nand_release(autcpu12_mtd);
- /* unmap physical adress */
+ /* unmap physical address */
iounmap(autcpu12_fio_base);
/* Free the MTD device structure */
* http://blackfin.uclinux.org/
* Bryan Wu <bryan.wu@analog.com>
*
- * Blackfin BF5xx on-chip NAND flash controler driver
+ * Blackfin BF5xx on-chip NAND flash controller driver
*
* Derived from drivers/mtd/nand/s3c2410.c
* Copyright (c) 2007 Ben Dooks <ben@simtec.co.uk>
nand_release(cs553x_mtd[i]);
cs553x_mtd[i] = NULL;
- /* unmap physical adress */
+ /* unmap physical address */
iounmap(mmio_base);
/* Free the MTD device structure */
return -ENOMEM;
}
- /* map physical adress */
+ /* map physical address */
ep7312_fio_base = ioremap(ep7312_fio_pbase, SZ_1K);
if (!ep7312_fio_base) {
printk("ioremap EDB7312 NAND flash failed\n");
struct mtd_oob_ops *ops);
/*
- * For devices which display every fart in the system on a seperate LED. Is
+ * For devices which display every fart in the system on a separate LED. Is
* compiled away when LED support is disabled.
*/
DEFINE_LED_TRIGGER(nand_led_trigger);
#define STATE_CMD_RESET 0x0000000C /* reset */
#define STATE_CMD_MASK 0x0000000F /* command states mask */
-/* After an addres is input, the simulator goes to one of these states */
+/* After an address is input, the simulator goes to one of these states */
#define STATE_ADDR_PAGE 0x00000010 /* full (row, column) address is accepted */
#define STATE_ADDR_SEC 0x00000020 /* sector address was accepted */
#define STATE_ADDR_ZERO 0x00000030 /* one byte zero address was accepted */
*
* Changelog:
* 21-Sep-2004 BJD Initial version
- * 23-Sep-2004 BJD Mulitple device support
+ * 23-Sep-2004 BJD Multiple device support
* 28-Sep-2004 BJD Fixed ECC placement for Hardware mode
* 12-Oct-2004 BJD Fixed errors in use of platform data
* 18-Feb-2005 BJD Fix sparse errors
return -ENOMEM;
}
- /* map physical adress */
+ /* map physical address */
sharpsl_io_base = ioremap(sharpsl_phys_base, 0x1000);
if (!sharpsl_io_base) {
printk("ioremap to access Sharp SL NAND chip failed\n");
}
}
-/* calc_chain_lenght: Walk through a Virtual Unit Chain and estimate chain length */
+/* calc_chain_length: Walk through a Virtual Unit Chain and estimate chain length */
static int calc_chain_length(struct NFTLrecord *nftl, unsigned int first_block)
{
unsigned int length = 0, block = first_block;
will be called smc-ultra32.
config BFIN_MAC
- tristate "Blackfin 536/537 on-chip mac support"
- depends on NET_ETHERNET && (BF537 || BF536) && (!BF537_PORT_H)
+ tristate "Blackfin 527/536/537 on-chip mac support"
+ depends on NET_ETHERNET && (BF527 || BF537 || BF536) && (!BF537_PORT_H)
select CRC32
select MII
select PHYLIB
config BFIN_MAC_USE_L1
bool "Use L1 memory for rx/tx packets"
- depends on BFIN_MAC && BF537
+ depends on BFIN_MAC && (BF527 || BF537)
default y
help
To get maximum network performance, you should use L1 memory as rx/tx buffers.
config BFIN_MAC_RMII
bool "RMII PHY Interface (EXPERIMENTAL)"
depends on BFIN_MAC && EXPERIMENTAL
- default n
+ default y if BFIN527_EZKIT
+ default n if BFIN537_STAMP
help
Use Reduced PHY MII Interface
config IBMLANA
tristate "IBM LAN Adapter/A support"
- depends on MCA && MCA_LEGACY
+ depends on MCA
---help---
This is a Micro Channel Ethernet adapter. You need to set
CONFIG_MCA to use this driver. It is both available as an in-kernel
tristate "Virtio network driver (EXPERIMENTAL)"
depends on EXPERIMENTAL && VIRTIO
---help---
- This is the virtual network driver for lguest. Say Y or M.
+ This is the virtual network driver for virtio. It can be used with
+ lguest or QEMU based VMMs (like KVM or Xen). Say Y or M.
endif # NETDEVICES
/* Wait until PHY reset is complete */
do {
read_phy(lp->phy_address, MII_BMCR, &bmcr);
- } while (!(bmcr && BMCR_RESET));
+ } while (!(bmcr & BMCR_RESET));
disable_mdi();
spin_unlock_irq(&lp->lock);
static void ax_reset_8390(struct net_device *dev)
{
struct ei_device *ei_local = netdev_priv(dev);
+ struct ax_device *ax = to_ax_dev(dev);
unsigned long reset_start_time = jiffies;
void __iomem *addr = (void __iomem *)dev->base_addr;
if (ei_debug > 1)
- printk(KERN_DEBUG "resetting the 8390 t=%ld...", jiffies);
+ dev_dbg(&ax->dev->dev, "resetting the 8390 t=%ld\n", jiffies);
ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET);
/* This check _should_not_ be necessary, omit eventually. */
while ((ei_inb(addr + EN0_ISR) & ENISR_RESET) == 0) {
if (jiffies - reset_start_time > 2*HZ/100) {
- printk(KERN_WARNING "%s: %s did not complete.\n",
+ dev_warn(&ax->dev->dev, "%s: %s did not complete.\n",
__FUNCTION__, dev->name);
break;
}
int ring_page)
{
struct ei_device *ei_local = netdev_priv(dev);
+ struct ax_device *ax = to_ax_dev(dev);
void __iomem *nic_base = ei_local->mem;
/* This *shouldn't* happen. If it does, it's the last thing you'll see */
if (ei_status.dmaing) {
- printk(KERN_EMERG "%s: DMAing conflict in %s [DMAstat:%d][irqlock:%d].\n",
+ dev_err(&ax->dev->dev, "%s: DMAing conflict in %s "
+ "[DMAstat:%d][irqlock:%d].\n",
dev->name, __FUNCTION__,
- ei_status.dmaing, ei_status.irqlock);
+ ei_status.dmaing, ei_status.irqlock);
return;
}
struct sk_buff *skb, int ring_offset)
{
struct ei_device *ei_local = netdev_priv(dev);
+ struct ax_device *ax = to_ax_dev(dev);
void __iomem *nic_base = ei_local->mem;
char *buf = skb->data;
if (ei_status.dmaing) {
- printk(KERN_EMERG "%s: DMAing conflict in ax_block_input "
+ dev_err(&ax->dev->dev,
+ "%s: DMAing conflict in %s "
"[DMAstat:%d][irqlock:%d].\n",
- dev->name, ei_status.dmaing, ei_status.irqlock);
+ dev->name, __FUNCTION__,
+ ei_status.dmaing, ei_status.irqlock);
return;
}
const unsigned char *buf, const int start_page)
{
struct ei_device *ei_local = netdev_priv(dev);
+ struct ax_device *ax = to_ax_dev(dev);
void __iomem *nic_base = ei_local->mem;
unsigned long dma_start;
/* This *shouldn't* happen. If it does, it's the last thing you'll see */
if (ei_status.dmaing) {
- printk(KERN_EMERG "%s: DMAing conflict in %s."
+ dev_err(&ax->dev->dev, "%s: DMAing conflict in %s."
"[DMAstat:%d][irqlock:%d]\n",
dev->name, __FUNCTION__,
ei_status.dmaing, ei_status.irqlock);
while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) {
if (jiffies - dma_start > 2*HZ/100) { /* 20ms */
- printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name);
+ dev_warn(&ax->dev->dev,
+ "%s: timeout waiting for Tx RDC.\n", dev->name);
ax_reset_8390(dev);
ax_NS8390_init(dev,1);
break;
ax_phy_write(struct net_device *dev, int phy_addr, int reg, int value)
{
struct ei_device *ei = (struct ei_device *) netdev_priv(dev);
+ struct ax_device *ax = to_ax_dev(dev);
unsigned long flags;
- printk(KERN_DEBUG "%s: %p, %04x, %04x %04x\n",
- __FUNCTION__, dev, phy_addr, reg, value);
+ dev_dbg(&ax->dev->dev, "%s: %p, %04x, %04x %04x\n",
+ __FUNCTION__, dev, phy_addr, reg, value);
spin_lock_irqsave(&ei->page_lock, flags);
ax_NS8390_init(dev, 0);
if (first_init) {
- printk("AX88796: %dbit, irq %d, %lx, MAC: ",
- ei_status.word16 ? 16:8, dev->irq, dev->base_addr);
-
- for (i = 0; i < ETHER_ADDR_LEN; i++)
- printk("%2.2x%c", dev->dev_addr[i],
- (i < (ETHER_ADDR_LEN-1) ? ':' : ' '));
+ DECLARE_MAC_BUF(mac);
- printk("\n");
+ dev_info(&ax->dev->dev, "%dbit, irq %d, %lx, MAC: %s\n",
+ ei_status.word16 ? 16:8, dev->irq, dev->base_addr,
+ print_mac(mac, dev->dev_addr));
}
ret = register_netdev(dev);
/*
- * File: drivers/net/bfin_mac.c
- * Based on:
- * Maintainer:
- * Bryan Wu <bryan.wu@analog.com>
+ * Blackfin On-Chip MAC Driver
*
- * Original author:
- * Luke Yang <luke.yang@analog.com>
+ * Copyright 2004-2007 Analog Devices Inc.
*
- * Created:
- * Description:
+ * Enter bugs at http://blackfin.uclinux.org/
*
- * Modified:
- * Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software ; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation ; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY ; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program ; see the file COPYING.
- * If not, write to the Free Software Foundation,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Licensed under the GPL-2 or later.
*/
#include <linux/init.h>
#define DRV_NAME "bfin_mac"
#define DRV_VERSION "1.1"
#define DRV_AUTHOR "Bryan Wu, Luke Yang"
-#define DRV_DESC "Blackfin BF53[67] on-chip Ethernet MAC driver"
+#define DRV_DESC "Blackfin BF53[67] BF527 on-chip Ethernet MAC driver"
MODULE_AUTHOR(DRV_AUTHOR);
MODULE_LICENSE("GPL");
/* poll the STABUSY bit */
while ((bfin_read_EMAC_STAADD()) & STABUSY) {
- mdelay(10);
+ udelay(1);
if (timeout_cnt-- < 0) {
printk(KERN_ERR DRV_NAME
": wait MDC/MDIO transaction to complete timeout\n");
spin_unlock_irqrestore(&lp->lock, flags);
}
+/* MDC = 2.5 MHz */
+#define MDC_CLK 2500000
+
static int mii_probe(struct net_device *dev)
{
struct bf537mac_local *lp = netdev_priv(dev);
struct phy_device *phydev = NULL;
unsigned short sysctl;
int i;
+ u32 sclk, mdc_div;
/* Enable PHY output early */
if (!(bfin_read_VR_CTL() & PHYCLKOE))
bfin_write_VR_CTL(bfin_read_VR_CTL() | PHYCLKOE);
- /* MDC = 2.5 MHz */
+ sclk = get_sclk();
+ mdc_div = ((sclk / MDC_CLK) / 2) - 1;
+
sysctl = bfin_read_EMAC_SYSCTL();
- sysctl |= SET_MDCDIV(24);
+ sysctl = (sysctl & ~MDCDIV) | SET_MDCDIV(mdc_div);
bfin_write_EMAC_SYSCTL(sysctl);
/* search for connect PHY device */
lp->phydev = phydev;
printk(KERN_INFO "%s: attached PHY driver [%s] "
- "(mii_bus:phy_addr=%s, irq=%d)\n",
- DRV_NAME, phydev->drv->name, phydev->dev.bus_id, phydev->irq);
+ "(mii_bus:phy_addr=%s, irq=%d, mdc_clk=%dHz(mdc_div=%d)"
+ "@sclk=%dMHz)\n",
+ DRV_NAME, phydev->drv->name, phydev->dev.bus_id, phydev->irq,
+ MDC_CLK, mdc_div, sclk/1000000);
return 0;
}
*/
if (current_tx_ptr->next->next == tx_list_head) {
while (tx_list_head->status.status_word == 0) {
- mdelay(10);
+ mdelay(1);
if (tx_list_head->status.status_word != 0
|| !(bfin_read_DMA2_IRQ_STATUS() & 0x08)) {
goto adjust_head;
current_rx_ptr->skb = new_skb;
current_rx_ptr->desc_a.start_addr = (unsigned long)new_skb->data - 2;
+ /* Invidate the data cache of skb->data range when it is write back
+ * cache. It will prevent overwritting the new data from DMA
+ */
+ blackfin_dcache_invalidate_range((unsigned long)new_skb->head,
+ (unsigned long)new_skb->end);
+
len = (unsigned short)((current_rx_ptr->status.status_word) & RX_FRLEN);
skb_put(skb, len);
blackfin_dcache_invalidate_range((unsigned long)skb->head,
#if defined(CONFIG_BFIN_MAC_RMII)
opmode |= RMII; /* For Now only 100MBit are supported */
-#ifdef CONFIG_BF_REV_0_2
+#if (defined(CONFIG_BF537) || defined(CONFIG_BF536)) && CONFIG_BF_REV_0_2
opmode |= TE;
#endif
#endif
netif_wake_queue(dev);
}
+static void bf537mac_multicast_hash(struct net_device *dev)
+{
+ u32 emac_hashhi, emac_hashlo;
+ struct dev_mc_list *dmi = dev->mc_list;
+ char *addrs;
+ int i;
+ u32 crc;
+
+ emac_hashhi = emac_hashlo = 0;
+
+ for (i = 0; i < dev->mc_count; i++) {
+ addrs = dmi->dmi_addr;
+ dmi = dmi->next;
+
+ /* skip non-multicast addresses */
+ if (!(*addrs & 1))
+ continue;
+
+ crc = ether_crc(ETH_ALEN, addrs);
+ crc >>= 26;
+
+ if (crc & 0x20)
+ emac_hashhi |= 1 << (crc & 0x1f);
+ else
+ emac_hashlo |= 1 << (crc & 0x1f);
+ }
+
+ bfin_write_EMAC_HASHHI(emac_hashhi);
+ bfin_write_EMAC_HASHLO(emac_hashlo);
+
+ return;
+}
+
/*
* This routine will, depending on the values passed to it,
* either make it accept multicast packets, go into
sysctl = bfin_read_EMAC_OPMODE();
sysctl |= RAF;
bfin_write_EMAC_OPMODE(sysctl);
- } else if (dev->flags & IFF_ALLMULTI || dev->mc_count) {
+ } else if (dev->flags & IFF_ALLMULTI) {
/* accept all multicast */
sysctl = bfin_read_EMAC_OPMODE();
sysctl |= PAM;
bfin_write_EMAC_OPMODE(sysctl);
+ } else if (dev->mc_count) {
+ /* set up multicast hash table */
+ sysctl = bfin_read_EMAC_OPMODE();
+ sysctl |= HM;
+ bfin_write_EMAC_OPMODE(sysctl);
+ bf537mac_multicast_hash(dev);
} else {
/* clear promisc or multicast mode */
sysctl = bfin_read_EMAC_OPMODE();
return retval;
phy_start(lp->phydev);
+ phy_write(lp->phydev, MII_BMCR, BMCR_RESET);
setup_system_regs(dev);
bf537mac_disable();
bf537mac_enable();
-
pr_debug("hardware init finished\n");
netif_start_queue(dev);
netif_carrier_on(dev);
netif_carrier_off(dev);
phy_stop(lp->phydev);
+ phy_write(lp->phydev, MII_BMCR, BMCR_PDOWN);
/* clear everything */
bf537mac_shutdown(dev);
/* register irq handler */
if (request_irq
(IRQ_MAC_RX, bf537mac_interrupt, IRQF_DISABLED | IRQF_SHARED,
- "BFIN537_MAC_RX", dev)) {
+ "EMAC_RX", dev)) {
printk(KERN_WARNING DRV_NAME
": Unable to attach BlackFin MAC RX interrupt\n");
return -EBUSY;
/*
- * File: drivers/net/bfin_mac.c
- * Based on:
- * Maintainer:
- * Bryan Wu <bryan.wu@analog.com>
+ * Blackfin On-Chip MAC Driver
*
- * Original author:
- * Luke Yang <luke.yang@analog.com>
+ * Copyright 2004-2007 Analog Devices Inc.
*
- * Created:
- * Description:
+ * Enter bugs at http://blackfin.uclinux.org/
*
- * Modified:
- * Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software ; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation ; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY ; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program ; see the file COPYING.
- * If not, write to the Free Software Foundation,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Licensed under the GPL-2 or later.
*/
#define BFIN_MAC_CSUM_OFFLOAD
dev_set_allmulti(slave_dev, 1);
}
+ netif_tx_lock_bh(bond_dev);
/* upload master's mc_list to new slave */
for (dmi = bond_dev->mc_list; dmi; dmi = dmi->next) {
dev_mc_add (slave_dev, dmi->dmi_addr, dmi->dmi_addrlen, 0);
}
+ netif_tx_unlock_bh(bond_dev);
}
if (bond->params.mode == BOND_MODE_8023AD) {
}
/* flush master's mc_list from slave */
+ netif_tx_lock_bh(bond_dev);
bond_mc_list_flush(bond_dev, slave_dev);
+ netif_tx_unlock_bh(bond_dev);
}
netdev_set_master(slave_dev, NULL);
}
/* flush master's mc_list from slave */
+ netif_tx_lock_bh(bond_dev);
bond_mc_list_flush(bond_dev, slave_dev);
+ netif_tx_unlock_bh(bond_dev);
}
netdev_set_master(slave_dev, NULL);
}
if (do_failover) {
- rtnl_lock();
write_lock_bh(&bond->curr_slave_lock);
bond_select_active_slave(bond);
write_unlock_bh(&bond->curr_slave_lock);
- rtnl_unlock();
-
}
re_arm:
slave->link = BOND_LINK_UP;
- rtnl_lock();
-
write_lock_bh(&bond->curr_slave_lock);
if ((!bond->curr_active_slave) &&
}
write_unlock_bh(&bond->curr_slave_lock);
- rtnl_unlock();
}
} else {
read_lock(&bond->curr_slave_lock);
bond->dev->name,
slave->dev->name);
- rtnl_lock();
write_lock_bh(&bond->curr_slave_lock);
bond_select_active_slave(bond);
write_unlock_bh(&bond->curr_slave_lock);
- rtnl_unlock();
-
bond->current_arp_slave = slave;
if (slave) {
bond->primary_slave->dev->name);
/* primary is up so switch to it */
- rtnl_lock();
write_lock_bh(&bond->curr_slave_lock);
bond_change_active_slave(bond, bond->primary_slave);
write_unlock_bh(&bond->curr_slave_lock);
- rtnl_unlock();
-
slave = bond->primary_slave;
slave->jiffies = jiffies;
} else {
{
struct bonding *bond = bond_dev->priv;
struct net_device_stats *stats = &(bond->stats), *sstats;
+ struct net_device_stats local_stats;
struct slave *slave;
int i;
- memset(stats, 0, sizeof(struct net_device_stats));
+ memset(&local_stats, 0, sizeof(struct net_device_stats));
read_lock_bh(&bond->lock);
bond_for_each_slave(bond, slave, i) {
sstats = slave->dev->get_stats(slave->dev);
- stats->rx_packets += sstats->rx_packets;
- stats->rx_bytes += sstats->rx_bytes;
- stats->rx_errors += sstats->rx_errors;
- stats->rx_dropped += sstats->rx_dropped;
+ local_stats.rx_packets += sstats->rx_packets;
+ local_stats.rx_bytes += sstats->rx_bytes;
+ local_stats.rx_errors += sstats->rx_errors;
+ local_stats.rx_dropped += sstats->rx_dropped;
- stats->tx_packets += sstats->tx_packets;
- stats->tx_bytes += sstats->tx_bytes;
- stats->tx_errors += sstats->tx_errors;
- stats->tx_dropped += sstats->tx_dropped;
+ local_stats.tx_packets += sstats->tx_packets;
+ local_stats.tx_bytes += sstats->tx_bytes;
+ local_stats.tx_errors += sstats->tx_errors;
+ local_stats.tx_dropped += sstats->tx_dropped;
- stats->multicast += sstats->multicast;
- stats->collisions += sstats->collisions;
+ local_stats.multicast += sstats->multicast;
+ local_stats.collisions += sstats->collisions;
- stats->rx_length_errors += sstats->rx_length_errors;
- stats->rx_over_errors += sstats->rx_over_errors;
- stats->rx_crc_errors += sstats->rx_crc_errors;
- stats->rx_frame_errors += sstats->rx_frame_errors;
- stats->rx_fifo_errors += sstats->rx_fifo_errors;
- stats->rx_missed_errors += sstats->rx_missed_errors;
+ local_stats.rx_length_errors += sstats->rx_length_errors;
+ local_stats.rx_over_errors += sstats->rx_over_errors;
+ local_stats.rx_crc_errors += sstats->rx_crc_errors;
+ local_stats.rx_frame_errors += sstats->rx_frame_errors;
+ local_stats.rx_fifo_errors += sstats->rx_fifo_errors;
+ local_stats.rx_missed_errors += sstats->rx_missed_errors;
- stats->tx_aborted_errors += sstats->tx_aborted_errors;
- stats->tx_carrier_errors += sstats->tx_carrier_errors;
- stats->tx_fifo_errors += sstats->tx_fifo_errors;
- stats->tx_heartbeat_errors += sstats->tx_heartbeat_errors;
- stats->tx_window_errors += sstats->tx_window_errors;
+ local_stats.tx_aborted_errors += sstats->tx_aborted_errors;
+ local_stats.tx_carrier_errors += sstats->tx_carrier_errors;
+ local_stats.tx_fifo_errors += sstats->tx_fifo_errors;
+ local_stats.tx_heartbeat_errors += sstats->tx_heartbeat_errors;
+ local_stats.tx_window_errors += sstats->tx_window_errors;
}
+ memcpy(stats, &local_stats, sizeof(struct net_device_stats));
+
read_unlock_bh(&bond->lock);
return stats;
struct bonding *bond = bond_dev->priv;
struct dev_mc_list *dmi;
- write_lock_bh(&bond->lock);
-
/*
* Do promisc before checking multicast_mode
*/
bond_set_allmulti(bond, -1);
}
+ read_lock(&bond->lock);
+
bond->flags = bond_dev->flags;
/* looking for addresses to add to slaves' mc list */
bond_mc_list_destroy(bond);
bond_mc_list_copy(bond_dev->mc_list, bond, GFP_ATOMIC);
- write_unlock_bh(&bond->lock);
+ read_unlock(&bond->lock);
}
/*
struct net_device *bond_dev = bond->dev;
bond_work_cancel_all(bond);
+ netif_tx_lock_bh(bond_dev);
bond_mc_list_destroy(bond);
+ netif_tx_unlock_bh(bond_dev);
/* Release the bonded slaves */
bond_release_all(bond_dev);
bond_deinit(bond_dev);
int bond_parse_parm(const char *buf, struct bond_parm_tbl *tbl)
{
int mode = -1, i, rv;
- char modestr[BOND_MAX_MODENAME_LEN + 1] = { 0, };
+ char *p, modestr[BOND_MAX_MODENAME_LEN + 1] = { 0, };
- rv = sscanf(buf, "%d", &mode);
- if (!rv) {
+ for (p = (char *)buf; *p; p++)
+ if (!(isdigit(*p) || isspace(*p)))
+ break;
+
+ if (*p)
rv = sscanf(buf, "%20s", modestr);
- if (!rv)
- return -1;
- }
+ else
+ rv = sscanf(buf, "%d", &mode);
+
+ if (!rv)
+ return -1;
for (i = 0; tbl[i].modename; i++) {
if (mode == tbl[i].mode)
down_write(&bonding_rwsem);
/* Check to see if the bond already exists. */
- list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list)
- if (strnicmp(bond->dev->name, name, IFNAMSIZ) == 0) {
- printk(KERN_ERR DRV_NAME
+ if (name) {
+ list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list)
+ if (strnicmp(bond->dev->name, name, IFNAMSIZ) == 0) {
+ printk(KERN_ERR DRV_NAME
": cannot add bond %s; it already exists\n",
- name);
- res = -EPERM;
- goto out_rtnl;
- }
+ name);
+ res = -EPERM;
+ goto out_rtnl;
+ }
+ }
bond_dev = alloc_netdev(sizeof(struct bonding), name ? name : "",
ether_setup);
#include "bond_3ad.h"
#include "bond_alb.h"
-#define DRV_VERSION "3.2.3"
-#define DRV_RELDATE "December 6, 2007"
+#define DRV_VERSION "3.2.4"
+#define DRV_RELDATE "January 28, 2008"
#define DRV_NAME "bonding"
#define DRV_DESCRIPTION "Ethernet Channel Bonding Driver"
t3_write_reg(adap, A_MC5_DB_INT_CAUSE, cause);
}
-void __devinit t3_mc5_prep(struct adapter *adapter, struct mc5 *mc5, int mode)
+void t3_mc5_prep(struct adapter *adapter, struct mc5 *mc5, int mode)
{
#define K * 1024
* defaults for the assorted SGE parameters, which admins can change until
* they are used to initialize the SGE.
*/
-void __devinit t3_sge_prep(struct adapter *adap, struct sge_params *p)
+void t3_sge_prep(struct adapter *adap, struct sge_params *p)
{
int i;
V_PMMAXXFERLEN0(size) | V_PMMAXXFERLEN1(size));
}
-static void __devinit init_mtus(unsigned short mtus[])
+static void init_mtus(unsigned short mtus[])
{
/*
* See draft-mathis-plpmtud-00.txt for the values. The min is 88 so
/*
* Initial congestion control parameters.
*/
-static void __devinit init_cong_ctrl(unsigned short *a, unsigned short *b)
+static void init_cong_ctrl(unsigned short *a, unsigned short *b)
{
a[0] = a[1] = a[2] = a[3] = a[4] = a[5] = a[6] = a[7] = a[8] = 1;
a[9] = 2;
* Determines a card's PCI mode and associated parameters, such as speed
* and width.
*/
-static void __devinit get_pci_mode(struct adapter *adapter,
- struct pci_params *p)
+static void get_pci_mode(struct adapter *adapter, struct pci_params *p)
{
static unsigned short speed_map[] = { 33, 66, 100, 133 };
u32 pci_mode, pcie_cap;
* capabilities and default speed/duplex/flow-control/autonegotiation
* settings.
*/
-static void __devinit init_link_config(struct link_config *lc,
- unsigned int caps)
+static void init_link_config(struct link_config *lc, unsigned int caps)
{
lc->supported = caps;
lc->requested_speed = lc->speed = SPEED_INVALID;
* Calculates the size of an MC7 memory in bytes from the value of its
* configuration register.
*/
-static unsigned int __devinit mc7_calc_size(u32 cfg)
+static unsigned int mc7_calc_size(u32 cfg)
{
unsigned int width = G_WIDTH(cfg);
unsigned int banks = !!(cfg & F_BKS) + 1;
return MBs << 20;
}
-static void __devinit mc7_prep(struct adapter *adapter, struct mc7 *mc7,
- unsigned int base_addr, const char *name)
+static void mc7_prep(struct adapter *adapter, struct mc7 *mc7,
+ unsigned int base_addr, const char *name)
{
u32 cfg;
return 0;
}
-static int __devinit init_parity(struct adapter *adap)
+static int init_parity(struct adapter *adap)
{
int i, err, addr;
* for some adapter tunables, take PHYs out of reset, and initialize the MDIO
* interface.
*/
-int __devinit t3_prep_adapter(struct adapter *adapter,
- const struct adapter_info *ai, int reset)
+int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
+ int reset)
{
int ret;
unsigned int i, j = 0;
* enabled. 82557 pads with 7Eh, while the later controllers pad
* with 00h.
*
- * IV. Recieve
+ * IV. Receive
*
* The Receive Frame Area (RFA) comprises a ring of Receive Frame
* Descriptors (RFD) + data buffer, thus forming the simplified mode
* and Rx indication and re-allocation happen in the same context,
* therefore no locking is required. A software-generated interrupt
* is generated from the watchdog to recover from a failed allocation
- * senario where all Rx resources have been indicated and none re-
+ * scenario where all Rx resources have been indicated and none re-
* placed.
*
* V. Miscellaneous
/* Quadwords to DMA into FIFO before starting frame transmit */
nic->tx_threshold = 0xE0;
- /* no interrupt for every tx completion, delay = 256us if not 557*/
+ /* no interrupt for every tx completion, delay = 256us if not 557 */
nic->tx_command = cpu_to_le16(cb_tx | cb_tx_sf |
((nic->mac >= mac_82558_D101_A4) ? cb_cid : cb_i));
&s->complete;
/* Device's stats reporting may take several microseconds to
- * complete, so where always waiting for results of the
+ * complete, so we're always waiting for results of the
* previous command. */
if(*complete == cpu_to_le32(cuc_dump_reset_complete)) {
if(restart_required) {
// ack the rnr?
- writeb(stat_ack_rnr, &nic->csr->scb.stat_ack);
+ iowrite8(stat_ack_rnr, &nic->csr->scb.stat_ack);
e100_start_receiver(nic, nic->rx_to_clean);
if(work_done)
(*work_done)++;
struct nic *nic = netdev_priv(netdev);
unregister_netdev(netdev);
e100_free(nic);
- iounmap(nic->csr);
+ pci_iounmap(pdev, nic->csr);
free_netdev(netdev);
pci_release_regions(pdev);
pci_disable_device(pdev);
/**
* e100_io_error_detected - called when PCI error is detected.
* @pdev: Pointer to PCI device
- * @state: The current pci conneection state
+ * @state: The current pci connection state
*/
static pci_ers_result_t e100_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct nic *nic = netdev_priv(netdev);
- /* Similar to calling e100_down(), but avoids adpater I/O. */
+ /* Similar to calling e100_down(), but avoids adapter I/O. */
netdev->stop(netdev);
- /* Detach; put netif into state similar to hotplug unplug. */
+ /* Detach; put netif into a state similar to hotplug unplug. */
napi_enable(&nic->napi);
netif_device_detach(netdev);
pci_disable_device(pdev);
/**
* Dump the eeprom for users having checksum issues
**/
-void e1000_dump_eeprom(struct e1000_adapter *adapter)
+static void e1000_dump_eeprom(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
struct ethtool_eeprom eeprom;
#define E1000_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */
#define E1000_WUFC_MC 0x00000008 /* Directed Multicast Wakeup Enable */
#define E1000_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */
+#define E1000_WUFC_ARP 0x00000020 /* ARP Request Packet Wakeup Enable */
/* Extended Device Control */
#define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Defineable Pin 7 */
return err;
}
-bool reg_pattern_test_array(struct e1000_adapter *adapter, u64 *data,
- int reg, int offset, u32 mask, u32 write)
+static bool reg_pattern_test_array(struct e1000_adapter *adapter, u64 *data,
+ int reg, int offset, u32 mask, u32 write)
{
int i;
u32 read;
return;
wol->supported = WAKE_UCAST | WAKE_MCAST |
- WAKE_BCAST | WAKE_MAGIC;
+ WAKE_BCAST | WAKE_MAGIC |
+ WAKE_PHY | WAKE_ARP;
/* apply any specific unsupported masks here */
if (adapter->flags & FLAG_NO_WAKE_UCAST) {
wol->wolopts |= WAKE_BCAST;
if (adapter->wol & E1000_WUFC_MAG)
wol->wolopts |= WAKE_MAGIC;
+ if (adapter->wol & E1000_WUFC_LNKC)
+ wol->wolopts |= WAKE_PHY;
+ if (adapter->wol & E1000_WUFC_ARP)
+ wol->wolopts |= WAKE_ARP;
}
static int e1000_set_wol(struct net_device *netdev,
{
struct e1000_adapter *adapter = netdev_priv(netdev);
- if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
+ if (wol->wolopts & WAKE_MAGICSECURE)
return -EOPNOTSUPP;
if (!(adapter->flags & FLAG_HAS_WOL))
adapter->wol |= E1000_WUFC_BC;
if (wol->wolopts & WAKE_MAGIC)
adapter->wol |= E1000_WUFC_MAG;
+ if (wol->wolopts & WAKE_PHY)
+ adapter->wol |= E1000_WUFC_LNKC;
+ if (wol->wolopts & WAKE_ARP)
+ adapter->wol |= E1000_WUFC_ARP;
return 0;
}
int irq_flags = IRQF_SHARED;
int err;
- err = pci_enable_msi(adapter->pdev);
- if (err) {
- ndev_warn(netdev,
- "Unable to allocate MSI interrupt Error: %d\n", err);
- } else {
+ if (!pci_enable_msi(adapter->pdev)) {
adapter->flags |= FLAG_MSI_ENABLED;
handler = e1000_intr_msi;
irq_flags = 0;
err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
netdev);
if (err) {
+ ndev_err(netdev,
+ "Unable to allocate %s interrupt (return: %d)\n",
+ adapter->flags & FLAG_MSI_ENABLED ? "MSI":"INTx",
+ err);
if (adapter->flags & FLAG_MSI_ENABLED)
pci_disable_msi(adapter->pdev);
- ndev_err(netdev,
- "Unable to allocate interrupt Error: %d\n", err);
}
return err;
* Many modifications, and currently maintained, by
* Philip Blundell <philb@gnu.org>
* Added the Compaq LTE Alan Cox <alan@redhat.com>
- * Added MCA support Adam Fritzler <mid@auk.cx>
+ * Added MCA support Adam Fritzler
*
* Note - this driver is experimental still - it has problems on faster
* machines. Someone needs to sit down and go through it line by line with
int ehea_sense_port_attr(struct ehea_port *port);
int ehea_set_portspeed(struct ehea_port *port, u32 port_speed);
+extern u64 ehea_driver_flags;
+extern struct work_struct ehea_rereg_mr_task;
+
#endif /* __EHEA_H__ */
return ret;
if (netif_carrier_ok(dev)) {
- switch(port->port_speed) {
+ switch (port->port_speed) {
case EHEA_SPEED_10M: cmd->speed = SPEED_10; break;
case EHEA_SPEED_100M: cmd->speed = SPEED_100; break;
case EHEA_SPEED_1G: cmd->speed = SPEED_1000; break;
goto doit;
}
- switch(cmd->speed) {
+ switch (cmd->speed) {
case SPEED_10:
if (cmd->duplex == DUPLEX_FULL)
sp = H_SPEED_10M_F;
#ifndef __EHEA_HW_H__
#define __EHEA_HW_H__
-#define QPX_SQA_VALUE EHEA_BMASK_IBM(48,63)
-#define QPX_RQ1A_VALUE EHEA_BMASK_IBM(48,63)
-#define QPX_RQ2A_VALUE EHEA_BMASK_IBM(48,63)
-#define QPX_RQ3A_VALUE EHEA_BMASK_IBM(48,63)
+#define QPX_SQA_VALUE EHEA_BMASK_IBM(48, 63)
+#define QPX_RQ1A_VALUE EHEA_BMASK_IBM(48, 63)
+#define QPX_RQ2A_VALUE EHEA_BMASK_IBM(48, 63)
+#define QPX_RQ3A_VALUE EHEA_BMASK_IBM(48, 63)
#define QPTEMM_OFFSET(x) offsetof(struct ehea_qptemm, x)
* (C) Copyright IBM Corp. 2006
*
* Authors:
- * Christoph Raisch <raisch@de.ibm.com>
- * Jan-Bernd Themann <themann@de.ibm.com>
- * Thomas Klein <tklein@de.ibm.com>
+ * Christoph Raisch <raisch@de.ibm.com>
+ * Jan-Bernd Themann <themann@de.ibm.com>
+ * Thomas Klein <tklein@de.ibm.com>
*
*
* This program is free software; you can redistribute it and/or modify
static int rq2_entries = EHEA_DEF_ENTRIES_RQ2;
static int rq3_entries = EHEA_DEF_ENTRIES_RQ3;
static int sq_entries = EHEA_DEF_ENTRIES_SQ;
-static int use_mcs = 0;
-static int use_lro = 0;
+static int use_mcs;
+static int use_lro;
static int lro_max_aggr = EHEA_LRO_MAX_AGGR;
static int num_tx_qps = EHEA_NUM_TX_QP;
-static int prop_carrier_state = 0;
+static int prop_carrier_state;
module_param(msg_level, int, 0);
module_param(rq1_entries, int, 0);
MODULE_PARM_DESC(use_lro, " Large Receive Offload, 1: enable, 0: disable, "
"Default = 0");
-static int port_name_cnt = 0;
+static int port_name_cnt;
static LIST_HEAD(adapter_list);
-u64 ehea_driver_flags = 0;
+u64 ehea_driver_flags;
struct work_struct ehea_rereg_mr_task;
struct semaphore dlpar_mem_lock;
.remove = ehea_remove,
};
-void ehea_dump(void *adr, int len, char *msg) {
+void ehea_dump(void *adr, int len, char *msg)
+{
int x;
unsigned char *deb = adr;
for (x = 0; x < len; x += 16) {
printk(DRV_NAME " %s adr=%p ofs=%04x %016lx %016lx\n", msg,
- deb, x, *((u64*)&deb[0]), *((u64*)&deb[8]));
+ deb, x, *((u64 *)&deb[0]), *((u64 *)&deb[8]));
deb += 16;
}
}
last_wqe_index = wqe_index;
rmb();
if (!ehea_check_cqe(cqe, &rq)) {
- if (rq == 1) { /* LL RQ1 */
+ if (rq == 1) {
+ /* LL RQ1 */
skb = get_skb_by_index_ll(skb_arr_rq1,
skb_arr_rq1_len,
wqe_index);
if (!skb)
break;
}
- skb_copy_to_linear_data(skb, ((char*)cqe) + 64,
+ skb_copy_to_linear_data(skb, ((char *)cqe) + 64,
cqe->num_bytes_transfered - 4);
ehea_fill_skb(dev, skb, cqe);
- } else if (rq == 2) { /* RQ2 */
+ } else if (rq == 2) {
+ /* RQ2 */
skb = get_skb_by_index(skb_arr_rq2,
skb_arr_rq2_len, cqe);
if (unlikely(!skb)) {
}
ehea_fill_skb(dev, skb, cqe);
processed_rq2++;
- } else { /* RQ3 */
+ } else {
+ /* RQ3 */
skb = get_skb_by_index(skb_arr_rq3,
skb_arr_rq3_len, cqe);
if (unlikely(!skb)) {
unsigned long flags;
cqe = ehea_poll_cq(send_cq);
- while(cqe && (quota > 0)) {
+ while (cqe && (quota > 0)) {
ehea_inc_cq(send_cq);
cqe_counter++;
static int ehea_poll(struct napi_struct *napi, int budget)
{
- struct ehea_port_res *pr = container_of(napi, struct ehea_port_res, napi);
+ struct ehea_port_res *pr = container_of(napi, struct ehea_port_res,
+ napi);
struct net_device *dev = pr->port->netdev;
struct ehea_cqe *cqe;
struct ehea_cqe *cqe_skb = NULL;
u64 hret;
struct hcp_ehea_port_cb0 *cb0;
- cb0 = kzalloc(PAGE_SIZE, GFP_ATOMIC); /* May be called via */
- if (!cb0) { /* ehea_neq_tasklet() */
+ /* may be called via ehea_neq_tasklet() */
+ cb0 = kzalloc(PAGE_SIZE, GFP_ATOMIC);
+ if (!cb0) {
ehea_error("no mem for cb0");
ret = -ENOMEM;
goto out;
/* MAC address */
port->mac_addr = cb0->port_mac_addr << 16;
- if (!is_valid_ether_addr((u8*)&port->mac_addr)) {
+ if (!is_valid_ether_addr((u8 *)&port->mac_addr)) {
ret = -EADDRNOTAVAIL;
goto out_free;
}
static void ehea_neq_tasklet(unsigned long data)
{
- struct ehea_adapter *adapter = (struct ehea_adapter*)data;
+ struct ehea_adapter *adapter = (struct ehea_adapter *)data;
struct ehea_eqe *eqe;
u64 event_mask;
static int ehea_init_q_skba(struct ehea_q_skb_arr *q_skba, int max_q_entries)
{
- int arr_size = sizeof(void*) * max_q_entries;
+ int arr_size = sizeof(void *) * max_q_entries;
q_skba->arr = vmalloc(arr_size);
if (!q_skba->arr)
nfrags = skb_shinfo(skb)->nr_frags;
sg1entry = &swqe->u.immdata_desc.sg_entry;
- sg_list = (struct ehea_vsgentry*)&swqe->u.immdata_desc.sg_list;
+ sg_list = (struct ehea_vsgentry *)&swqe->u.immdata_desc.sg_list;
swqe->descriptors = 0;
sg1entry_contains_frag_data = 0;
reg_type, port->mac_addr, 0, hcallid);
if (hret != H_SUCCESS) {
ehea_error("%sregistering bc address failed (tagged)",
- hcallid == H_REG_BCMC ? "" : "de");
+ hcallid == H_REG_BCMC ? "" : "de");
ret = -EIO;
goto out_herr;
}
}
}
-static void ehea_add_multicast_entry(struct ehea_port* port, u8* mc_mac_addr)
+static void ehea_add_multicast_entry(struct ehea_port *port, u8 *mc_mac_addr)
{
struct ehea_mc_list *ehea_mcl_entry;
u64 hret;
goto out;
}
- for (i = 0, k_mcl_entry = dev->mc_list;
- i < dev->mc_count;
- i++, k_mcl_entry = k_mcl_entry->next) {
+ for (i = 0, k_mcl_entry = dev->mc_list; i < dev->mc_count; i++,
+ k_mcl_entry = k_mcl_entry->next)
ehea_add_multicast_entry(port, k_mcl_entry->dmi_addr);
- }
+
}
out:
return;
if ((skb->protocol == htons(ETH_P_IP)) &&
(ip_hdr(skb)->protocol == IPPROTO_TCP)) {
- tcp = (struct tcphdr*)(skb_network_header(skb) + (ip_hdr(skb)->ihl * 4));
+ tcp = (struct tcphdr *)(skb_network_header(skb) +
+ (ip_hdr(skb)->ihl * 4));
tmp = (tcp->source + (tcp->dest << 16)) % 31;
tmp += ip_hdr(skb)->daddr % 31;
return tmp % num_qps;
- }
- else
+ } else
return 0;
}
u64 hret;
u16 dummy16 = 0;
u64 dummy64 = 0;
- struct hcp_modify_qp_cb0* cb0;
+ struct hcp_modify_qp_cb0 *cb0;
cb0 = kzalloc(PAGE_SIZE, GFP_KERNEL);
if (!cb0) {
int ret = 0;
int i;
- for(i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++)
+ for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++)
ret |= ehea_clean_portres(port, &port->port_res[i]);
ret |= ehea_destroy_eq(port->qp_eq);
goto out_clean_pr;
}
- for(i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) {
+ for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) {
ret = ehea_activate_qp(port->adapter, port->port_res[i].qp);
if (ret) {
ehea_error("activate_qp failed");
}
}
- for(i = 0; i < port->num_def_qps; i++) {
+ for (i = 0; i < port->num_def_qps; i++) {
ret = ehea_fill_port_res(&port->port_res[i]);
if (ret) {
ehea_error("out_free_irqs");
{
struct ehea_port *port = netdev_priv(dev);
struct ehea_adapter *adapter = port->adapter;
- struct hcp_modify_qp_cb0* cb0;
+ struct hcp_modify_qp_cb0 *cb0;
int ret = -EIO;
int dret;
int i;
return ret;
}
-void ehea_update_rqs(struct ehea_qp *orig_qp, struct ehea_port_res * pr)
+void ehea_update_rqs(struct ehea_qp *orig_qp, struct ehea_port_res *pr)
{
struct ehea_qp qp = *orig_qp;
struct ehea_qp_init_attr *init_attr = &qp.init_attr;
int ret = 0;
int i;
- struct hcp_modify_qp_cb0* cb0;
+ struct hcp_modify_qp_cb0 *cb0;
u64 hret;
u64 dummy64 = 0;
u16 dummy16 = 0;
of_node_put(port->ofdev.node);
}
-static int ehea_driver_sysfs_add(struct device *dev,
- struct device_driver *driver)
-{
- int ret;
-
- ret = sysfs_create_link(&driver->kobj, &dev->kobj,
- kobject_name(&dev->kobj));
- if (ret == 0) {
- ret = sysfs_create_link(&dev->kobj, &driver->kobj,
- "driver");
- if (ret)
- sysfs_remove_link(&driver->kobj,
- kobject_name(&dev->kobj));
- }
- return ret;
-}
-
-static void ehea_driver_sysfs_remove(struct device *dev,
- struct device_driver *driver)
-{
- struct device_driver *drv = driver;
-
- if (drv) {
- sysfs_remove_link(&drv->kobj, kobject_name(&dev->kobj));
- sysfs_remove_link(&dev->kobj, "driver");
- }
-}
-
static struct device *ehea_register_port(struct ehea_port *port,
struct device_node *dn)
{
goto out_unreg_of_dev;
}
- ret = ehea_driver_sysfs_add(&port->ofdev.dev, &ehea_driver.driver);
- if (ret) {
- ehea_error("failed to register sysfs driver link");
- goto out_rem_dev_file;
- }
-
return &port->ofdev.dev;
-out_rem_dev_file:
- device_remove_file(&port->ofdev.dev, &dev_attr_log_port_id);
out_unreg_of_dev:
of_device_unregister(&port->ofdev);
out:
static void ehea_unregister_port(struct ehea_port *port)
{
- ehea_driver_sysfs_remove(&port->ofdev.dev, &ehea_driver.driver);
device_remove_file(&port->ofdev.dev, &dev_attr_log_port_id);
of_device_unregister(&port->ofdev);
}
of_node_put(eth_dn);
if (port) {
- for (i=0; i < EHEA_MAX_PORTS; i++)
+ for (i = 0; i < EHEA_MAX_PORTS; i++)
if (!adapter->port[i]) {
adapter->port[i] = port;
break;
ehea_shutdown_single_port(port);
- for (i=0; i < EHEA_MAX_PORTS; i++)
+ for (i = 0; i < EHEA_MAX_PORTS; i++)
if (adapter->port[i] == port) {
adapter->port[i] = NULL;
break;
}
static struct notifier_block ehea_reboot_nb = {
- .notifier_call = ehea_reboot_notifier,
+ .notifier_call = ehea_reboot_notifier,
};
static int check_module_parm(void)
* (C) Copyright IBM Corp. 2006
*
* Authors:
- * Christoph Raisch <raisch@de.ibm.com>
- * Jan-Bernd Themann <themann@de.ibm.com>
- * Thomas Klein <tklein@de.ibm.com>
+ * Christoph Raisch <raisch@de.ibm.com>
+ * Jan-Bernd Themann <themann@de.ibm.com>
+ * Thomas Klein <tklein@de.ibm.com>
*
*
* This program is free software; you can redistribute it and/or modify
}
/* Defines for H_CALL H_ALLOC_RESOURCE */
-#define H_ALL_RES_TYPE_QP 1
-#define H_ALL_RES_TYPE_CQ 2
-#define H_ALL_RES_TYPE_EQ 3
-#define H_ALL_RES_TYPE_MR 5
-#define H_ALL_RES_TYPE_MW 6
+#define H_ALL_RES_TYPE_QP 1
+#define H_ALL_RES_TYPE_CQ 2
+#define H_ALL_RES_TYPE_EQ 3
+#define H_ALL_RES_TYPE_MR 5
+#define H_ALL_RES_TYPE_MW 6
static long ehea_plpar_hcall_norets(unsigned long opcode,
unsigned long arg1,
const u64 qp_handle, const u64 sel_mask, void *cb_addr)
{
return ehea_plpar_hcall_norets(H_QUERY_HEA_QP,
- adapter_handle, /* R4 */
- qp_category, /* R5 */
- qp_handle, /* R6 */
- sel_mask, /* R7 */
+ adapter_handle, /* R4 */
+ qp_category, /* R5 */
+ qp_handle, /* R6 */
+ sel_mask, /* R7 */
virt_to_abs(cb_addr), /* R8 */
0, 0);
}
/* input param R5 */
-#define H_ALL_RES_QP_EQPO EHEA_BMASK_IBM(9, 11)
-#define H_ALL_RES_QP_QPP EHEA_BMASK_IBM(12, 12)
-#define H_ALL_RES_QP_RQR EHEA_BMASK_IBM(13, 15)
-#define H_ALL_RES_QP_EQEG EHEA_BMASK_IBM(16, 16)
-#define H_ALL_RES_QP_LL_QP EHEA_BMASK_IBM(17, 17)
-#define H_ALL_RES_QP_DMA128 EHEA_BMASK_IBM(19, 19)
-#define H_ALL_RES_QP_HSM EHEA_BMASK_IBM(20, 21)
-#define H_ALL_RES_QP_SIGT EHEA_BMASK_IBM(22, 23)
-#define H_ALL_RES_QP_TENURE EHEA_BMASK_IBM(48, 55)
-#define H_ALL_RES_QP_RES_TYP EHEA_BMASK_IBM(56, 63)
+#define H_ALL_RES_QP_EQPO EHEA_BMASK_IBM(9, 11)
+#define H_ALL_RES_QP_QPP EHEA_BMASK_IBM(12, 12)
+#define H_ALL_RES_QP_RQR EHEA_BMASK_IBM(13, 15)
+#define H_ALL_RES_QP_EQEG EHEA_BMASK_IBM(16, 16)
+#define H_ALL_RES_QP_LL_QP EHEA_BMASK_IBM(17, 17)
+#define H_ALL_RES_QP_DMA128 EHEA_BMASK_IBM(19, 19)
+#define H_ALL_RES_QP_HSM EHEA_BMASK_IBM(20, 21)
+#define H_ALL_RES_QP_SIGT EHEA_BMASK_IBM(22, 23)
+#define H_ALL_RES_QP_TENURE EHEA_BMASK_IBM(48, 55)
+#define H_ALL_RES_QP_RES_TYP EHEA_BMASK_IBM(56, 63)
/* input param R9 */
-#define H_ALL_RES_QP_TOKEN EHEA_BMASK_IBM(0, 31)
-#define H_ALL_RES_QP_PD EHEA_BMASK_IBM(32,63)
+#define H_ALL_RES_QP_TOKEN EHEA_BMASK_IBM(0, 31)
+#define H_ALL_RES_QP_PD EHEA_BMASK_IBM(32, 63)
/* input param R10 */
-#define H_ALL_RES_QP_MAX_SWQE EHEA_BMASK_IBM(4, 7)
-#define H_ALL_RES_QP_MAX_R1WQE EHEA_BMASK_IBM(12, 15)
-#define H_ALL_RES_QP_MAX_R2WQE EHEA_BMASK_IBM(20, 23)
-#define H_ALL_RES_QP_MAX_R3WQE EHEA_BMASK_IBM(28, 31)
+#define H_ALL_RES_QP_MAX_SWQE EHEA_BMASK_IBM(4, 7)
+#define H_ALL_RES_QP_MAX_R1WQE EHEA_BMASK_IBM(12, 15)
+#define H_ALL_RES_QP_MAX_R2WQE EHEA_BMASK_IBM(20, 23)
+#define H_ALL_RES_QP_MAX_R3WQE EHEA_BMASK_IBM(28, 31)
/* Max Send Scatter Gather Elements */
-#define H_ALL_RES_QP_MAX_SSGE EHEA_BMASK_IBM(37, 39)
-#define H_ALL_RES_QP_MAX_R1SGE EHEA_BMASK_IBM(45, 47)
+#define H_ALL_RES_QP_MAX_SSGE EHEA_BMASK_IBM(37, 39)
+#define H_ALL_RES_QP_MAX_R1SGE EHEA_BMASK_IBM(45, 47)
/* Max Receive SG Elements RQ1 */
-#define H_ALL_RES_QP_MAX_R2SGE EHEA_BMASK_IBM(53, 55)
-#define H_ALL_RES_QP_MAX_R3SGE EHEA_BMASK_IBM(61, 63)
+#define H_ALL_RES_QP_MAX_R2SGE EHEA_BMASK_IBM(53, 55)
+#define H_ALL_RES_QP_MAX_R3SGE EHEA_BMASK_IBM(61, 63)
/* input param R11 */
-#define H_ALL_RES_QP_SWQE_IDL EHEA_BMASK_IBM(0, 7)
+#define H_ALL_RES_QP_SWQE_IDL EHEA_BMASK_IBM(0, 7)
/* max swqe immediate data length */
-#define H_ALL_RES_QP_PORT_NUM EHEA_BMASK_IBM(48, 63)
+#define H_ALL_RES_QP_PORT_NUM EHEA_BMASK_IBM(48, 63)
/* input param R12 */
-#define H_ALL_RES_QP_TH_RQ2 EHEA_BMASK_IBM(0, 15)
+#define H_ALL_RES_QP_TH_RQ2 EHEA_BMASK_IBM(0, 15)
/* Threshold RQ2 */
-#define H_ALL_RES_QP_TH_RQ3 EHEA_BMASK_IBM(16, 31)
+#define H_ALL_RES_QP_TH_RQ3 EHEA_BMASK_IBM(16, 31)
/* Threshold RQ3 */
/* output param R6 */
-#define H_ALL_RES_QP_ACT_SWQE EHEA_BMASK_IBM(0, 15)
-#define H_ALL_RES_QP_ACT_R1WQE EHEA_BMASK_IBM(16, 31)
-#define H_ALL_RES_QP_ACT_R2WQE EHEA_BMASK_IBM(32, 47)
-#define H_ALL_RES_QP_ACT_R3WQE EHEA_BMASK_IBM(48, 63)
+#define H_ALL_RES_QP_ACT_SWQE EHEA_BMASK_IBM(0, 15)
+#define H_ALL_RES_QP_ACT_R1WQE EHEA_BMASK_IBM(16, 31)
+#define H_ALL_RES_QP_ACT_R2WQE EHEA_BMASK_IBM(32, 47)
+#define H_ALL_RES_QP_ACT_R3WQE EHEA_BMASK_IBM(48, 63)
/* output param, R7 */
-#define H_ALL_RES_QP_ACT_SSGE EHEA_BMASK_IBM(0, 7)
-#define H_ALL_RES_QP_ACT_R1SGE EHEA_BMASK_IBM(8, 15)
-#define H_ALL_RES_QP_ACT_R2SGE EHEA_BMASK_IBM(16, 23)
-#define H_ALL_RES_QP_ACT_R3SGE EHEA_BMASK_IBM(24, 31)
+#define H_ALL_RES_QP_ACT_SSGE EHEA_BMASK_IBM(0, 7)
+#define H_ALL_RES_QP_ACT_R1SGE EHEA_BMASK_IBM(8, 15)
+#define H_ALL_RES_QP_ACT_R2SGE EHEA_BMASK_IBM(16, 23)
+#define H_ALL_RES_QP_ACT_R3SGE EHEA_BMASK_IBM(24, 31)
#define H_ALL_RES_QP_ACT_SWQE_IDL EHEA_BMASK_IBM(32, 39)
/* output param R8,R9 */
-#define H_ALL_RES_QP_SIZE_SQ EHEA_BMASK_IBM(0, 31)
-#define H_ALL_RES_QP_SIZE_RQ1 EHEA_BMASK_IBM(32, 63)
-#define H_ALL_RES_QP_SIZE_RQ2 EHEA_BMASK_IBM(0, 31)
-#define H_ALL_RES_QP_SIZE_RQ3 EHEA_BMASK_IBM(32, 63)
+#define H_ALL_RES_QP_SIZE_SQ EHEA_BMASK_IBM(0, 31)
+#define H_ALL_RES_QP_SIZE_RQ1 EHEA_BMASK_IBM(32, 63)
+#define H_ALL_RES_QP_SIZE_RQ2 EHEA_BMASK_IBM(0, 31)
+#define H_ALL_RES_QP_SIZE_RQ3 EHEA_BMASK_IBM(32, 63)
/* output param R11,R12 */
-#define H_ALL_RES_QP_LIOBN_SQ EHEA_BMASK_IBM(0, 31)
-#define H_ALL_RES_QP_LIOBN_RQ1 EHEA_BMASK_IBM(32, 63)
-#define H_ALL_RES_QP_LIOBN_RQ2 EHEA_BMASK_IBM(0, 31)
-#define H_ALL_RES_QP_LIOBN_RQ3 EHEA_BMASK_IBM(32, 63)
+#define H_ALL_RES_QP_LIOBN_SQ EHEA_BMASK_IBM(0, 31)
+#define H_ALL_RES_QP_LIOBN_RQ1 EHEA_BMASK_IBM(32, 63)
+#define H_ALL_RES_QP_LIOBN_RQ2 EHEA_BMASK_IBM(0, 31)
+#define H_ALL_RES_QP_LIOBN_RQ3 EHEA_BMASK_IBM(32, 63)
u64 ehea_h_alloc_resource_qp(const u64 adapter_handle,
struct ehea_qp_init_attr *init_attr, const u32 pd,
}
/* Defines for H_CALL H_ALLOC_RESOURCE */
-#define H_ALL_RES_TYPE_QP 1
-#define H_ALL_RES_TYPE_CQ 2
-#define H_ALL_RES_TYPE_EQ 3
-#define H_ALL_RES_TYPE_MR 5
-#define H_ALL_RES_TYPE_MW 6
+#define H_ALL_RES_TYPE_QP 1
+#define H_ALL_RES_TYPE_CQ 2
+#define H_ALL_RES_TYPE_EQ 3
+#define H_ALL_RES_TYPE_MR 5
+#define H_ALL_RES_TYPE_MW 6
/* input param R5 */
-#define H_ALL_RES_EQ_NEQ EHEA_BMASK_IBM(0, 0)
+#define H_ALL_RES_EQ_NEQ EHEA_BMASK_IBM(0, 0)
#define H_ALL_RES_EQ_NON_NEQ_ISN EHEA_BMASK_IBM(6, 7)
#define H_ALL_RES_EQ_INH_EQE_GEN EHEA_BMASK_IBM(16, 16)
-#define H_ALL_RES_EQ_RES_TYPE EHEA_BMASK_IBM(56, 63)
+#define H_ALL_RES_EQ_RES_TYPE EHEA_BMASK_IBM(56, 63)
/* input param R6 */
-#define H_ALL_RES_EQ_MAX_EQE EHEA_BMASK_IBM(32, 63)
+#define H_ALL_RES_EQ_MAX_EQE EHEA_BMASK_IBM(32, 63)
/* output param R6 */
-#define H_ALL_RES_EQ_LIOBN EHEA_BMASK_IBM(32, 63)
+#define H_ALL_RES_EQ_LIOBN EHEA_BMASK_IBM(32, 63)
/* output param R7 */
-#define H_ALL_RES_EQ_ACT_EQE EHEA_BMASK_IBM(32, 63)
+#define H_ALL_RES_EQ_ACT_EQE EHEA_BMASK_IBM(32, 63)
/* output param R8 */
-#define H_ALL_RES_EQ_ACT_PS EHEA_BMASK_IBM(32, 63)
+#define H_ALL_RES_EQ_ACT_PS EHEA_BMASK_IBM(32, 63)
/* output param R9 */
#define H_ALL_RES_EQ_ACT_EQ_IST_C EHEA_BMASK_IBM(30, 31)
hret = ehea_plpar_hcall9(H_REGISTER_SMR,
outs,
- adapter_handle , /* R4 */
- orig_mr_handle, /* R5 */
- vaddr_in, /* R6 */
- (((u64)access_ctrl) << 32ULL), /* R7 */
- pd, /* R8 */
- 0, 0, 0, 0); /* R9-R12 */
+ adapter_handle , /* R4 */
+ orig_mr_handle, /* R5 */
+ vaddr_in, /* R6 */
+ (((u64)access_ctrl) << 32ULL), /* R7 */
+ pd, /* R8 */
+ 0, 0, 0, 0); /* R9-R12 */
mr->handle = outs[0];
mr->lkey = (u32)outs[2];
u64 outs[PLPAR_HCALL9_BUFSIZE];
return ehea_plpar_hcall9(H_DISABLE_AND_GET_HEA,
- outs,
+ outs,
adapter_handle, /* R4 */
H_DISABLE_GET_EHEA_WQE_P, /* R5 */
qp_handle, /* R6 */
- 0, 0, 0, 0, 0, 0); /* R7-R12 */
+ 0, 0, 0, 0, 0, 0); /* R7-R12 */
}
u64 ehea_h_free_resource(const u64 adapter_handle, const u64 res_handle,
{
return ehea_plpar_hcall_norets(H_FREE_RESOURCE,
adapter_handle, /* R4 */
- res_handle, /* R5 */
+ res_handle, /* R5 */
force_bit,
- 0, 0, 0, 0); /* R7-R10 */
+ 0, 0, 0, 0); /* R7-R10 */
}
u64 ehea_h_alloc_resource_mr(const u64 adapter_handle, const u64 vaddr,
const u32 pd, u64 *mr_handle, u32 *lkey)
{
u64 hret;
- u64 outs[PLPAR_HCALL9_BUFSIZE];
+ u64 outs[PLPAR_HCALL9_BUFSIZE];
hret = ehea_plpar_hcall9(H_ALLOC_HEA_RESOURCE,
outs,
adapter_handle, /* R4 */
5, /* R5 */
- vaddr, /* R6 */
+ vaddr, /* R6 */
length, /* R7 */
(((u64) access_ctrl) << 32ULL), /* R8 */
pd, /* R9 */
void *rblock)
{
return ehea_plpar_hcall_norets(H_ERROR_DATA,
- adapter_handle, /* R4 */
- ressource_handle, /* R5 */
- virt_to_abs(rblock), /* R6 */
- 0, 0, 0, 0); /* R7-R12 */
+ adapter_handle, /* R4 */
+ ressource_handle, /* R5 */
+ virt_to_abs(rblock), /* R6 */
+ 0, 0, 0, 0); /* R7-R12 */
}
static inline void hcp_epas_dtor(struct h_epas *epas)
{
if (epas->kernel.addr)
- iounmap((void __iomem*)((u64)epas->kernel.addr & PAGE_MASK));
+ iounmap((void __iomem *)((u64)epas->kernel.addr & PAGE_MASK));
epas->user.addr = 0;
epas->kernel.addr = 0;
const u64 qp_handle,
const u64 sel_mask,
void *cb_addr,
- u64 * inv_attr_id,
- u64 * proc_mask, u16 * out_swr, u16 * out_rwr);
+ u64 *inv_attr_id,
+ u64 *proc_mask, u16 *out_swr, u16 *out_rwr);
u64 ehea_h_alloc_resource_eq(const u64 adapter_handle,
- struct ehea_eq_attr *eq_attr, u64 * eq_handle);
+ struct ehea_eq_attr *eq_attr, u64 *eq_handle);
u64 ehea_h_alloc_resource_cq(const u64 adapter_handle,
struct ehea_cq_attr *cq_attr,
- u64 * cq_handle, struct h_epas *epas);
+ u64 *cq_handle, struct h_epas *epas);
u64 ehea_h_alloc_resource_qp(const u64 adapter_handle,
struct ehea_qp_init_attr *init_attr,
const u32 pd,
- u64 * qp_handle, struct h_epas *h_epas);
+ u64 *qp_handle, struct h_epas *h_epas);
-#define H_REG_RPAGE_PAGE_SIZE EHEA_BMASK_IBM(48,55)
-#define H_REG_RPAGE_QT EHEA_BMASK_IBM(62,63)
+#define H_REG_RPAGE_PAGE_SIZE EHEA_BMASK_IBM(48, 55)
+#define H_REG_RPAGE_QT EHEA_BMASK_IBM(62, 63)
u64 ehea_h_register_rpage(const u64 adapter_handle,
const u8 pagesize,
u64 ehea_h_alloc_resource_mr(const u64 adapter_handle, const u64 vaddr,
const u64 length, const u32 access_ctrl,
- const u32 pd, u64 * mr_handle, u32 * lkey);
+ const u32 pd, u64 *mr_handle, u32 *lkey);
u64 ehea_h_register_rpage_mr(const u64 adapter_handle, const u64 mr_handle,
const u8 pagesize, const u8 queue_type,
u64 ehea_h_query_ehea(const u64 adapter_handle, void *cb_addr);
/* output param R5 */
-#define H_MEHEAPORT_CAT EHEA_BMASK_IBM(40,47)
-#define H_MEHEAPORT_PN EHEA_BMASK_IBM(48,63)
+#define H_MEHEAPORT_CAT EHEA_BMASK_IBM(40, 47)
+#define H_MEHEAPORT_PN EHEA_BMASK_IBM(48, 63)
u64 ehea_h_query_ehea_port(const u64 adapter_handle, const u16 port_num,
const u8 cb_cat, const u64 select_mask,
struct ehea_busmap ehea_bmap = { 0, 0, NULL };
-extern u64 ehea_driver_flags;
-extern struct work_struct ehea_rereg_mr_task;
static void *hw_qpageit_get_inc(struct hw_queue *queue)
}
queue->queue_length = nr_of_pages * pagesize;
- queue->queue_pages = kmalloc(nr_of_pages * sizeof(void*), GFP_KERNEL);
+ queue->queue_pages = kmalloc(nr_of_pages * sizeof(void *), GFP_KERNEL);
if (!queue->queue_pages) {
ehea_error("no mem for queue_pages");
return -ENOMEM;
*/
i = 0;
while (i < nr_of_pages) {
- u8 *kpage = (u8*)get_zeroed_page(GFP_KERNEL);
+ u8 *kpage = (u8 *)get_zeroed_page(GFP_KERNEL);
if (!kpage)
goto out_nomem;
for (k = 0; k < pages_per_kpage && i < nr_of_pages; k++) {
- (queue->queue_pages)[i] = (struct ehea_page*)kpage;
+ (queue->queue_pages)[i] = (struct ehea_page *)kpage;
kpage += pagesize;
i++;
}
return 0;
hcp_epas_dtor(&cq->epas);
-
- if ((hret = ehea_destroy_cq_res(cq, NORMAL_FREE)) == H_R_STATE) {
+ hret = ehea_destroy_cq_res(cq, NORMAL_FREE);
+ if (hret == H_R_STATE) {
ehea_error_data(cq->adapter, cq->fw_handle);
hret = ehea_destroy_cq_res(cq, FORCE_FREE);
}
if (i == (eq->attr.nr_pages - 1)) {
/* last page */
vpage = hw_qpageit_get_inc(&eq->hw_queue);
- if ((hret != H_SUCCESS) || (vpage)) {
+ if ((hret != H_SUCCESS) || (vpage))
goto out_kill_hwq;
- }
+
} else {
- if ((hret != H_PAGE_REGISTERED) || (!vpage)) {
+ if ((hret != H_PAGE_REGISTERED) || (!vpage))
goto out_kill_hwq;
- }
+
}
}
unsigned long flags;
spin_lock_irqsave(&eq->spinlock, flags);
- eqe = (struct ehea_eqe*)hw_eqit_eq_get_inc_valid(&eq->hw_queue);
+ eqe = (struct ehea_eqe *)hw_eqit_eq_get_inc_valid(&eq->hw_queue);
spin_unlock_irqrestore(&eq->spinlock, flags);
return eqe;
hcp_epas_dtor(&eq->epas);
- if ((hret = ehea_destroy_eq_res(eq, NORMAL_FREE)) == H_R_STATE) {
+ hret = ehea_destroy_eq_res(eq, NORMAL_FREE);
+ if (hret == H_R_STATE) {
ehea_error_data(eq->adapter, eq->fw_handle);
hret = ehea_destroy_eq_res(eq, FORCE_FREE);
}
hcp_epas_dtor(&qp->epas);
- if ((hret = ehea_destroy_qp_res(qp, NORMAL_FREE)) == H_R_STATE) {
+ hret = ehea_destroy_qp_res(qp, NORMAL_FREE);
+ if (hret == H_R_STATE) {
ehea_error_data(qp->adapter, qp->fw_handle);
hret = ehea_destroy_qp_res(qp, FORCE_FREE);
}
return 0;
}
-int ehea_create_busmap( void )
+int ehea_create_busmap(void)
{
u64 vaddr = EHEA_BUSMAP_START;
unsigned long high_section_index = 0;
return 0;
}
-void ehea_destroy_busmap( void )
+void ehea_destroy_busmap(void)
{
vfree(ehea_bmap.vaddr);
}
#define EHEA_SECTSIZE (1UL << 24)
#define EHEA_PAGES_PER_SECTION (EHEA_SECTSIZE >> EHEA_PAGESHIFT)
-#if (1UL << SECTION_SIZE_BITS) < EHEA_SECTSIZE
-#error eHEA module can't work if kernel sectionsize < ehea sectionsize
+#if ((1UL << SECTION_SIZE_BITS) < EHEA_SECTSIZE)
+#error eHEA module cannot work if kernel sectionsize < ehea sectionsize
#endif
/* Some abbreviations used here:
u64 entry;
};
-#define ERROR_DATA_LENGTH EHEA_BMASK_IBM(52,63)
-#define ERROR_DATA_TYPE EHEA_BMASK_IBM(0,7)
+#define ERROR_DATA_LENGTH EHEA_BMASK_IBM(52, 63)
+#define ERROR_DATA_TYPE EHEA_BMASK_IBM(0, 7)
static inline void *hw_qeit_calc(struct hw_queue *queue, u64 q_offset)
{
static inline void *hw_eqit_eq_get_inc_valid(struct hw_queue *queue)
{
void *retvalue = hw_qeit_get(queue);
- u32 qe = *(u8*)retvalue;
+ u32 qe = *(u8 *)retvalue;
if ((qe >> 7) == (queue->toggle_state & 1))
hw_qeit_eq_get_inc(queue);
else
int ehea_destroy_cq(struct ehea_cq *cq);
-struct ehea_qp *ehea_create_qp(struct ehea_adapter * adapter, u32 pd,
+struct ehea_qp *ehea_create_qp(struct ehea_adapter *adapter, u32 pd,
struct ehea_qp_init_attr *init_attr);
int ehea_destroy_qp(struct ehea_qp *qp);
void ehea_error_data(struct ehea_adapter *adapter, u64 res_handle);
-int ehea_create_busmap( void );
-void ehea_destroy_busmap( void );
+int ehea_create_busmap(void);
+void ehea_destroy_busmap(void);
u64 ehea_map_vaddr(void *caddr);
#endif /* __EHEA_QMR_H__ */
* Copyright (C) 2004 Andrew de Quincey (wol support)
* Copyright (C) 2004 Carl-Daniel Hailfinger (invalid MAC handling, insane
* IRQ rate fixes, bigendian fixes, cleanups, verification)
- * Copyright (c) 2004,5,6 NVIDIA Corporation
+ * Copyright (c) 2004,2005,2006,2007,2008 NVIDIA Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#define NVREG_MISC1_HD 0x02
#define NVREG_MISC1_FORCE 0x3b0f3c
- NvRegMacReset = 0x3c,
+ NvRegMacReset = 0x34,
#define NVREG_MAC_RESET_ASSERT 0x0F3
NvRegTransmitterControl = 0x084,
#define NVREG_XMITCTL_START 0x01
#define NVREG_MCASTADDRA_FORCE 0x01
NvRegMulticastAddrB = 0xB4,
NvRegMulticastMaskA = 0xB8,
+#define NVREG_MCASTMASKA_NONE 0xffffffff
NvRegMulticastMaskB = 0xBC,
+#define NVREG_MCASTMASKB_NONE 0xffff
NvRegPhyInterface = 0xC0,
#define PHY_RGMII 0x10000000
NvRegTxRingPhysAddrHigh = 0x148,
NvRegRxRingPhysAddrHigh = 0x14C,
NvRegTxPauseFrame = 0x170,
-#define NVREG_TX_PAUSEFRAME_DISABLE 0x1ff0080
-#define NVREG_TX_PAUSEFRAME_ENABLE 0x0c00030
+#define NVREG_TX_PAUSEFRAME_DISABLE 0x01ff0080
+#define NVREG_TX_PAUSEFRAME_ENABLE 0x01800010
NvRegMIIStatus = 0x180,
#define NVREG_MIISTAT_ERROR 0x0001
#define NVREG_MIISTAT_LINKCHANGE 0x0008
#define NV_RX_AVAIL (1<<31)
#define NV_RX2_CHECKSUMMASK (0x1C000000)
-#define NV_RX2_CHECKSUMOK1 (0x10000000)
-#define NV_RX2_CHECKSUMOK2 (0x14000000)
-#define NV_RX2_CHECKSUMOK3 (0x18000000)
+#define NV_RX2_CHECKSUM_IP (0x10000000)
+#define NV_RX2_CHECKSUM_IP_TCP (0x14000000)
+#define NV_RX2_CHECKSUM_IP_UDP (0x18000000)
#define NV_RX2_DESCRIPTORVALID (1<<29)
#define NV_RX2_SUBSTRACT1 (1<<25)
#define NV_RX2_ERROR1 (1<<18)
goto next_pkt;
}
}
- if ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK2)/*ip and tcp */ {
+ if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */
+ ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP)) /*ip and udp */
skb->ip_summed = CHECKSUM_UNNECESSARY;
- } else {
- if ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK1 ||
- (flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK3) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- }
- }
} else {
dev_kfree_skb(skb);
goto next_pkt;
}
}
- if ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK2)/*ip and tcp */ {
+ if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */
+ ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP)) /*ip and udp */
skb->ip_summed = CHECKSUM_UNNECESSARY;
- } else {
- if ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK1 ||
- (flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUMOK3) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- }
- }
/* got a valid packet - forward it to the network core */
skb_put(skb, len);
addr[1] = alwaysOn[1];
mask[0] = alwaysOn[0] | alwaysOff[0];
mask[1] = alwaysOn[1] | alwaysOff[1];
+ } else {
+ mask[0] = NVREG_MCASTMASKA_NONE;
+ mask[1] = NVREG_MCASTMASKB_NONE;
}
}
addr[0] |= NVREG_MCASTADDRA_FORCE;
nv_mac_reset(dev);
writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
writel(0, base + NvRegMulticastAddrB);
- writel(0, base + NvRegMulticastMaskA);
- writel(0, base + NvRegMulticastMaskB);
+ writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA);
+ writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB);
writel(0, base + NvRegPacketFilterFlags);
writel(0, base + NvRegTransmitterControl);
spin_lock_irq(&np->lock);
writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
writel(0, base + NvRegMulticastAddrB);
- writel(0, base + NvRegMulticastMaskA);
- writel(0, base + NvRegMulticastMaskB);
+ writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA);
+ writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB);
writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
/* One manual link speed update: Interrupts are enabled, future link
* speed changes cause interrupts and are handled by nv_link_irq().
},
{ /* MCP77 Ethernet Controller */
PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_32),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
+ .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
},
{ /* MCP77 Ethernet Controller */
PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_33),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
+ .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
},
{ /* MCP77 Ethernet Controller */
PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_34),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
+ .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
},
{ /* MCP77 Ethernet Controller */
PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_35),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
+ .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
},
{ /* MCP79 Ethernet Controller */
PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_36),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
+ .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
},
{ /* MCP79 Ethernet Controller */
PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_37),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
+ .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
},
{ /* MCP79 Ethernet Controller */
PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_38),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
+ .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
},
{ /* MCP79 Ethernet Controller */
PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_39),
- .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT,
+ .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
},
{0,},
};
0x0000
};
-static char *ibmlana_adapter_names[] __initdata = {
+static char *ibmlana_adapter_names[] __devinitdata = {
"IBM LAN Adapter/A",
NULL
};
-static int ibmlana_init_one(struct device *kdev)
+static int __devinit ibmlana_init_one(struct device *kdev)
{
struct mca_device *mdev = to_mca_device(kdev);
struct net_device *dev;
if (adapter->msix_entries) {
err = igb_request_msix(adapter);
if (!err) {
- struct e1000_hw *hw = &adapter->hw;
/* enable IAM, auto-mask,
* DO NOT USE EIAME or IAME in legacy mode */
wr32(E1000_IAM, IMS_ENABLE_MASK);
struct frame_cb {
void *start; /* Start of frame in DMA mem */
- int len; /* Lenght of frame in DMA mem */
+ int len; /* Length of frame in DMA mem */
};
struct tx_fifo {
struct frame_cb queue[MAX_TX_WINDOW]; /* Info about frames in queue */
int ptr; /* Currently being sent */
- int len; /* Lenght of queue */
+ int len; /* Length of queue */
int free; /* Next free slot */
void *tail; /* Next free start in DMA mem */
};
struct frame_cb {
void *start; /* Start of frame in DMA mem */
- int len; /* Lenght of frame in DMA mem */
+ int len; /* Length of frame in DMA mem */
};
struct tx_fifo {
struct frame_cb queue[MAX_TX_WINDOW]; /* Info about frames in queue */
int ptr; /* Currently being sent */
- int len; /* Lenght of queue */
+ int len; /* Length of queue */
int free; /* Next free slot */
void *tail; /* Next free start in DMA mem */
};
struct frame_cb {
void *start; /* Start of frame in DMA mem */
- int len; /* Lenght of frame in DMA mem */
+ int len; /* Length of frame in DMA mem */
};
struct tx_fifo {
struct frame_cb queue[MAX_TX_WINDOW + 2]; /* Info about frames in queue */
int ptr; /* Currently being sent */
- int len; /* Lenght of queue */
+ int len; /* Length of queue */
int free; /* Next free slot */
void *tail; /* Next free start in DMA mem */
};
*
* "The author (me) didn't use spin_lock_irqsave because the slowness of the
* card means that approach caused horrible problems like losing serial data
- * at 38400 baud on some chips. Rememeber many 8390 nics on PCI were ISA
+ * at 38400 baud on some chips. Remember many 8390 nics on PCI were ISA
* chips with FPGA front ends.
*
* Ok the logic behind the 8390 is very simple:
return phy_mii_ioctl(phydev, if_mii(rq), cmd);
}
-static int __devinit macb_probe(struct platform_device *pdev)
+static int __init macb_probe(struct platform_device *pdev)
{
struct eth_platform_data *pdata;
struct resource *regs;
return err;
}
-static int __devexit macb_remove(struct platform_device *pdev)
+static int __exit macb_remove(struct platform_device *pdev)
{
struct net_device *dev;
struct macb *bp;
}
static struct platform_driver macb_driver = {
- .probe = macb_probe,
- .remove = __devexit_p(macb_remove),
+ .remove = __exit_p(macb_remove),
.driver = {
.name = "macb",
},
static int __init macb_init(void)
{
- return platform_driver_register(&macb_driver);
+ return platform_driver_probe(&macb_driver, macb_probe);
}
static void __exit macb_exit(void)
* for more details.
*/
-#define DEBUG
-
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <asm/mips-boards/simint.h>
-#include "mipsnet.h" /* actual device IO mapping */
+#define MIPSNET_VERSION "2007-11-17"
+
+/*
+ * Net status/control block as seen by sw in the core.
+ */
+struct mipsnet_regs {
+ /*
+ * Device info for probing, reads as MIPSNET%d where %d is some
+ * form of version.
+ */
+ u64 devId; /*0x00 */
-#define MIPSNET_VERSION "2005-06-20"
+ /*
+ * read only busy flag.
+ * Set and cleared by the Net Device to indicate that an rx or a tx
+ * is in progress.
+ */
+ u32 busy; /*0x08 */
-#define mipsnet_reg_address(dev, field) (dev->base_addr + field_offset(field))
+ /*
+ * Set by the Net Device.
+ * The device will set it once data has been received.
+ * The value is the number of bytes that should be read from
+ * rxDataBuffer. The value will decrease till 0 until all the data
+ * from rxDataBuffer has been read.
+ */
+ u32 rxDataCount; /*0x0c */
+#define MIPSNET_MAX_RXTX_DATACOUNT (1 << 16)
+
+ /*
+ * Settable from the MIPS core, cleared by the Net Device.
+ * The core should set the number of bytes it wants to send,
+ * then it should write those bytes of data to txDataBuffer.
+ * The device will clear txDataCount has been processed (not
+ * necessarily sent).
+ */
+ u32 txDataCount; /*0x10 */
+
+ /*
+ * Interrupt control
+ *
+ * Used to clear the interrupted generated by this dev.
+ * Write a 1 to clear the interrupt. (except bit31).
+ *
+ * Bit0 is set if it was a tx-done interrupt.
+ * Bit1 is set when new rx-data is available.
+ * Until this bit is cleared there will be no other RXs.
+ *
+ * Bit31 is used for testing, it clears after a read.
+ * Writing 1 to this bit will cause an interrupt to be generated.
+ * To clear the test interrupt, write 0 to this register.
+ */
+ u32 interruptControl; /*0x14 */
+#define MIPSNET_INTCTL_TXDONE (1u << 0)
+#define MIPSNET_INTCTL_RXDONE (1u << 1)
+#define MIPSNET_INTCTL_TESTBIT (1u << 31)
+
+ /*
+ * Readonly core-specific interrupt info for the device to signal
+ * the core. The meaning of the contents of this field might change.
+ */
+ /* XXX: the whole memIntf interrupt scheme is messy: the device
+ * should have no control what so ever of what VPE/register set is
+ * being used.
+ * The MemIntf should only expose interrupt lines, and something in
+ * the config should be responsible for the line<->core/vpe bindings.
+ */
+ u32 interruptInfo; /*0x18 */
+
+ /*
+ * This is where the received data is read out.
+ * There is more data to read until rxDataReady is 0.
+ * Only 1 byte at this regs offset is used.
+ */
+ u32 rxDataBuffer; /*0x1c */
+
+ /*
+ * This is where the data to transmit is written.
+ * Data should be written for the amount specified in the
+ * txDataCount register.
+ * Only 1 byte at this regs offset is used.
+ */
+ u32 txDataBuffer; /*0x20 */
+};
+
+#define regaddr(dev, field) \
+ (dev->base_addr + offsetof(struct mipsnet_regs, field))
static char mipsnet_string[] = "mipsnet";
static int ioiocpy_frommipsnet(struct net_device *dev, unsigned char *kdata,
int len)
{
- uint32_t available_len = inl(mipsnet_reg_address(dev, rxDataCount));
-
- if (available_len < len)
- return -EFAULT;
-
for (; len > 0; len--, kdata++)
- *kdata = inb(mipsnet_reg_address(dev, rxDataBuffer));
+ *kdata = inb(regaddr(dev, rxDataBuffer));
- return inl(mipsnet_reg_address(dev, rxDataCount));
+ return inl(regaddr(dev, rxDataCount));
}
-static inline ssize_t mipsnet_put_todevice(struct net_device *dev,
+static inline void mipsnet_put_todevice(struct net_device *dev,
struct sk_buff *skb)
{
int count_to_go = skb->len;
char *buf_ptr = skb->data;
- outl(skb->len, mipsnet_reg_address(dev, txDataCount));
+ outl(skb->len, regaddr(dev, txDataCount));
for (; count_to_go; buf_ptr++, count_to_go--)
- outb(*buf_ptr, mipsnet_reg_address(dev, txDataBuffer));
+ outb(*buf_ptr, regaddr(dev, txDataBuffer));
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
- return skb->len;
+ dev_kfree_skb(skb);
}
static int mipsnet_xmit(struct sk_buff *skb, struct net_device *dev)
return 0;
}
-static inline ssize_t mipsnet_get_fromdev(struct net_device *dev, size_t count)
+static inline ssize_t mipsnet_get_fromdev(struct net_device *dev, size_t len)
{
struct sk_buff *skb;
- size_t len = count;
- skb = alloc_skb(len + 2, GFP_KERNEL);
+ if (!len)
+ return len;
+
+ skb = dev_alloc_skb(len + NET_IP_ALIGN);
if (!skb) {
dev->stats.rx_dropped++;
return -ENOMEM;
}
- skb_reserve(skb, 2);
+ skb_reserve(skb, NET_IP_ALIGN);
if (ioiocpy_frommipsnet(dev, skb_put(skb, len), len))
return -EFAULT;
dev->stats.rx_packets++;
dev->stats.rx_bytes += len;
- return count;
+ return len;
}
static irqreturn_t mipsnet_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
-
- irqreturn_t retval = IRQ_NONE;
- uint64_t interruptFlags;
-
- if (irq == dev->irq) {
- retval = IRQ_HANDLED;
-
- interruptFlags =
- inl(mipsnet_reg_address(dev, interruptControl));
-
- if (interruptFlags & MIPSNET_INTCTL_TXDONE) {
- outl(MIPSNET_INTCTL_TXDONE,
- mipsnet_reg_address(dev, interruptControl));
- /* only one packet at a time, we are done. */
- netif_wake_queue(dev);
- } else if (interruptFlags & MIPSNET_INTCTL_RXDONE) {
- mipsnet_get_fromdev(dev,
- inl(mipsnet_reg_address(dev, rxDataCount)));
- outl(MIPSNET_INTCTL_RXDONE,
- mipsnet_reg_address(dev, interruptControl));
-
- } else if (interruptFlags & MIPSNET_INTCTL_TESTBIT) {
- /*
- * TESTBIT is cleared on read.
- * And takes effect after a write with 0
- */
- outl(0, mipsnet_reg_address(dev, interruptControl));
- } else {
- /* Maybe shared IRQ, just ignore, no clearing. */
- retval = IRQ_NONE;
- }
-
- } else {
- printk(KERN_INFO "%s: %s(): irq %d for unknown device\n",
- dev->name, __FUNCTION__, irq);
- retval = IRQ_NONE;
+ u32 int_flags;
+ irqreturn_t ret = IRQ_NONE;
+
+ if (irq != dev->irq)
+ goto out_badirq;
+
+ /* TESTBIT is cleared on read. */
+ int_flags = inl(regaddr(dev, interruptControl));
+ if (int_flags & MIPSNET_INTCTL_TESTBIT) {
+ /* TESTBIT takes effect after a write with 0. */
+ outl(0, regaddr(dev, interruptControl));
+ ret = IRQ_HANDLED;
+ } else if (int_flags & MIPSNET_INTCTL_TXDONE) {
+ /* Only one packet at a time, we are done. */
+ dev->stats.tx_packets++;
+ netif_wake_queue(dev);
+ outl(MIPSNET_INTCTL_TXDONE,
+ regaddr(dev, interruptControl));
+ ret = IRQ_HANDLED;
+ } else if (int_flags & MIPSNET_INTCTL_RXDONE) {
+ mipsnet_get_fromdev(dev, inl(regaddr(dev, rxDataCount)));
+ outl(MIPSNET_INTCTL_RXDONE, regaddr(dev, interruptControl));
+ ret = IRQ_HANDLED;
}
- return retval;
+ return ret;
+
+out_badirq:
+ printk(KERN_INFO "%s: %s(): irq %d for unknown device\n",
+ dev->name, __FUNCTION__, irq);
+ return ret;
}
static int mipsnet_open(struct net_device *dev)
err = request_irq(dev->irq, &mipsnet_interrupt,
IRQF_SHARED, dev->name, (void *) dev);
-
if (err) {
- release_region(dev->base_addr, MIPSNET_IO_EXTENT);
+ release_region(dev->base_addr, sizeof(struct mipsnet_regs));
return err;
}
netif_start_queue(dev);
/* test interrupt handler */
- outl(MIPSNET_INTCTL_TESTBIT,
- mipsnet_reg_address(dev, interruptControl));
-
+ outl(MIPSNET_INTCTL_TESTBIT, regaddr(dev, interruptControl));
return 0;
}
static int mipsnet_close(struct net_device *dev)
{
netif_stop_queue(dev);
-
+ free_irq(dev->irq, dev);
return 0;
}
*/
netdev->base_addr = 0x4200;
netdev->irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_MB0 +
- inl(mipsnet_reg_address(netdev, interruptInfo));
+ inl(regaddr(netdev, interruptInfo));
/* Get the io region now, get irq on open() */
- if (!request_region(netdev->base_addr, MIPSNET_IO_EXTENT, "mipsnet")) {
+ if (!request_region(netdev->base_addr, sizeof(struct mipsnet_regs),
+ "mipsnet")) {
err = -EBUSY;
goto out_free_netdev;
}
return 0;
out_free_region:
- release_region(netdev->base_addr, MIPSNET_IO_EXTENT);
+ release_region(netdev->base_addr, sizeof(struct mipsnet_regs));
out_free_netdev:
free_netdev(netdev);
struct net_device *dev = dev_get_drvdata(device);
unregister_netdev(dev);
- release_region(dev->base_addr, MIPSNET_IO_EXTENT);
+ release_region(dev->base_addr, sizeof(struct mipsnet_regs));
free_netdev(dev);
dev_set_drvdata(device, NULL);
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#ifndef __MIPSNET_H
-#define __MIPSNET_H
-
-/*
- * Id of this Net device, as seen by the core.
- */
-#define MIPS_NET_DEV_ID ((uint64_t) \
- ((uint64_t) 'M' << 0)| \
- ((uint64_t) 'I' << 8)| \
- ((uint64_t) 'P' << 16)| \
- ((uint64_t) 'S' << 24)| \
- ((uint64_t) 'N' << 32)| \
- ((uint64_t) 'E' << 40)| \
- ((uint64_t) 'T' << 48)| \
- ((uint64_t) '0' << 56))
-
-/*
- * Net status/control block as seen by sw in the core.
- * (Why not use bit fields? can't be bothered with cross-platform struct
- * packing.)
- */
-struct net_control_block {
- /*
- * dev info for probing
- * reads as MIPSNET%d where %d is some form of version
- */
- uint64_t devId; /* 0x00 */
-
- /*
- * read only busy flag.
- * Set and cleared by the Net Device to indicate that an rx or a tx
- * is in progress.
- */
- uint32_t busy; /* 0x08 */
-
- /*
- * Set by the Net Device.
- * The device will set it once data has been received.
- * The value is the number of bytes that should be read from
- * rxDataBuffer. The value will decrease till 0 until all the data
- * from rxDataBuffer has been read.
- */
- uint32_t rxDataCount; /* 0x0c */
-#define MIPSNET_MAX_RXTX_DATACOUNT (1<<16)
-
- /*
- * Settable from the MIPS core, cleared by the Net Device. The core
- * should set the number of bytes it wants to send, then it should
- * write those bytes of data to txDataBuffer. The device will clear
- * txDataCount has been processed (not necessarily sent).
- */
- uint32_t txDataCount; /* 0x10 */
-
- /*
- * Interrupt control
- *
- * Used to clear the interrupted generated by this dev.
- * Write a 1 to clear the interrupt. (except bit31).
- *
- * Bit0 is set if it was a tx-done interrupt.
- * Bit1 is set when new rx-data is available.
- * Until this bit is cleared there will be no other RXs.
- *
- * Bit31 is used for testing, it clears after a read.
- * Writing 1 to this bit will cause an interrupt to be generated.
- * To clear the test interrupt, write 0 to this register.
- */
- uint32_t interruptControl; /*0x14 */
-#define MIPSNET_INTCTL_TXDONE ((uint32_t)(1 << 0))
-#define MIPSNET_INTCTL_RXDONE ((uint32_t)(1 << 1))
-#define MIPSNET_INTCTL_TESTBIT ((uint32_t)(1 << 31))
-#define MIPSNET_INTCTL_ALLSOURCES (MIPSNET_INTCTL_TXDONE | \
- MIPSNET_INTCTL_RXDONE | \
- MIPSNET_INTCTL_TESTBIT)
-
- /*
- * Readonly core-specific interrupt info for the device to signal the
- * core. The meaning of the contents of this field might change.
- *
- * TODO: the whole memIntf interrupt scheme is messy: the device should
- * have no control what so ever of what VPE/register set is being
- * used. The MemIntf should only expose interrupt lines, and
- * something in the config should be responsible for the
- * line<->core/vpe bindings.
- */
- uint32_t interruptInfo; /* 0x18 */
-
- /*
- * This is where the received data is read out.
- * There is more data to read until rxDataReady is 0.
- * Only 1 byte at this regs offset is used.
- */
- uint32_t rxDataBuffer; /* 0x1c */
-
- /*
- * This is where the data to transmit is written. Data should be
- * written for the amount specified in the txDataCount register. Only
- * 1 byte at this regs offset is used.
- */
- uint32_t txDataBuffer; /* 0x20 */
-};
-
-#define MIPSNET_IO_EXTENT 0x40 /* being generous */
-
-#define field_offset(field) (offsetof(struct net_control_block, field))
-
-#endif /* __MIPSNET_H */
IIId. Synchronization
Most operations are synchronized on the np->lock irq spinlock, except the
-performance critical codepaths:
-
-The rx process only runs in the interrupt handler. Access from outside
-the interrupt handler is only permitted after disable_irq().
-
-The rx process usually runs under the netif_tx_lock. If np->intr_tx_reap
-is set, then access is permitted under spin_lock_irq(&np->lock).
-
-Thus configuration functions that want to access everything must call
- disable_irq(dev->irq);
- netif_tx_lock_bh(dev);
- spin_lock_irq(&np->lock);
-
-IV. Notes
-
-NatSemi PCI network controllers are very uncommon.
+recieve and transmit paths which are synchronised using a combination of
+hardware descriptor ownership, disabling interrupts and NAPI poll scheduling.
IVb. References
#define LRO_MAX_AGGR 64
+#define PE_MIN_MTU 64
+#define PE_MAX_MTU 1500
+#define PE_DEF_MTU ETH_DATA_LEN
+
#define DEFAULT_MSG_ENABLE \
(NETIF_MSG_DRV | \
NETIF_MSG_PROBE | \
& ((ring)->size - 1))
#define RING_AVAIL(ring) ((ring->size) - RING_USED(ring))
-#define BUF_SIZE 1646 /* 1500 MTU + ETH_HLEN + VLAN_HLEN + 2 64B cachelines */
-
MODULE_LICENSE("GPL");
MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>");
MODULE_DESCRIPTION("PA Semi PWRficient Ethernet driver");
return -1;
}
+static void pasemi_mac_intf_disable(struct pasemi_mac *mac)
+{
+ unsigned int flags;
+
+ flags = read_mac_reg(mac, PAS_MAC_CFG_PCFG);
+ flags &= ~PAS_MAC_CFG_PCFG_PE;
+ write_mac_reg(mac, PAS_MAC_CFG_PCFG, flags);
+}
+
+static void pasemi_mac_intf_enable(struct pasemi_mac *mac)
+{
+ unsigned int flags;
+
+ flags = read_mac_reg(mac, PAS_MAC_CFG_PCFG);
+ flags |= PAS_MAC_CFG_PCFG_PE;
+ write_mac_reg(mac, PAS_MAC_CFG_PCFG, flags);
+}
+
static int pasemi_get_mac_addr(struct pasemi_mac *mac)
{
struct pci_dev *pdev = mac->pdev;
return 0;
}
+static int pasemi_mac_set_mac_addr(struct net_device *dev, void *p)
+{
+ struct pasemi_mac *mac = netdev_priv(dev);
+ struct sockaddr *addr = p;
+ unsigned int adr0, adr1;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EINVAL;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+ adr0 = dev->dev_addr[2] << 24 |
+ dev->dev_addr[3] << 16 |
+ dev->dev_addr[4] << 8 |
+ dev->dev_addr[5];
+ adr1 = read_mac_reg(mac, PAS_MAC_CFG_ADR1);
+ adr1 &= ~0xffff;
+ adr1 |= dev->dev_addr[0] << 8 | dev->dev_addr[1];
+
+ pasemi_mac_intf_disable(mac);
+ write_mac_reg(mac, PAS_MAC_CFG_ADR0, adr0);
+ write_mac_reg(mac, PAS_MAC_CFG_ADR1, adr1);
+ pasemi_mac_intf_enable(mac);
+
+ return 0;
+}
+
static int get_skb_hdr(struct sk_buff *skb, void **iphdr,
void **tcph, u64 *hdr_flags, void *data)
{
}
-static void pasemi_mac_free_rx_resources(struct pasemi_mac *mac)
+static void pasemi_mac_free_rx_buffers(struct pasemi_mac *mac)
{
struct pasemi_mac_rxring *rx = rx_ring(mac);
unsigned int i;
}
for (i = 0; i < RX_RING_SIZE; i++)
- RX_DESC(rx, i) = 0;
+ RX_BUFF(rx, i) = 0;
+}
+
+static void pasemi_mac_free_rx_resources(struct pasemi_mac *mac)
+{
+ pasemi_mac_free_rx_buffers(mac);
dma_free_coherent(&mac->dma_pdev->dev, RX_RING_SIZE * sizeof(u64),
rx_ring(mac)->buffers, rx_ring(mac)->buf_dma);
/* Entry in use? */
WARN_ON(*buff);
- skb = dev_alloc_skb(BUF_SIZE);
+ skb = dev_alloc_skb(mac->bufsz);
skb_reserve(skb, LOCAL_SKB_ALIGN);
if (unlikely(!skb))
break;
dma = pci_map_single(mac->dma_pdev, skb->data,
- BUF_SIZE - LOCAL_SKB_ALIGN,
+ mac->bufsz - LOCAL_SKB_ALIGN,
PCI_DMA_FROMDEVICE);
if (unlikely(dma_mapping_error(dma))) {
info->skb = skb;
info->dma = dma;
- *buff = XCT_RXB_LEN(BUF_SIZE) | XCT_RXB_ADDR(dma);
+ *buff = XCT_RXB_LEN(mac->bufsz) | XCT_RXB_ADDR(dma);
fill++;
}
len = (macrx & XCT_MACRX_LLEN_M) >> XCT_MACRX_LLEN_S;
- pci_unmap_single(pdev, dma, BUF_SIZE-LOCAL_SKB_ALIGN,
+ pci_unmap_single(pdev, dma, mac->bufsz - LOCAL_SKB_ALIGN,
PCI_DMA_FROMDEVICE);
if (macrx & XCT_MACRX_CRC) {
return IRQ_HANDLED;
}
-static void pasemi_mac_intf_disable(struct pasemi_mac *mac)
-{
- unsigned int flags;
-
- flags = read_mac_reg(mac, PAS_MAC_CFG_PCFG);
- flags &= ~PAS_MAC_CFG_PCFG_PE;
- write_mac_reg(mac, PAS_MAC_CFG_PCFG, flags);
-}
-
-static void pasemi_mac_intf_enable(struct pasemi_mac *mac)
-{
- unsigned int flags;
-
- flags = read_mac_reg(mac, PAS_MAC_CFG_PCFG);
- flags |= PAS_MAC_CFG_PCFG_PE;
- write_mac_reg(mac, PAS_MAC_CFG_PCFG, flags);
-}
-
static void pasemi_adjust_link(struct net_device *dev)
{
struct pasemi_mac *mac = netdev_priv(dev);
#define MAX_RETRIES 5000
+static void pasemi_mac_pause_txchan(struct pasemi_mac *mac)
+{
+ unsigned int sta, retries;
+ int txch = tx_ring(mac)->chan.chno;
+
+ write_dma_reg(PAS_DMA_TXCHAN_TCMDSTA(txch),
+ PAS_DMA_TXCHAN_TCMDSTA_ST);
+
+ for (retries = 0; retries < MAX_RETRIES; retries++) {
+ sta = read_dma_reg(PAS_DMA_TXCHAN_TCMDSTA(txch));
+ if (!(sta & PAS_DMA_TXCHAN_TCMDSTA_ACT))
+ break;
+ cond_resched();
+ }
+
+ if (sta & PAS_DMA_TXCHAN_TCMDSTA_ACT)
+ dev_err(&mac->dma_pdev->dev,
+ "Failed to stop tx channel, tcmdsta %08x\n", sta);
+
+ write_dma_reg(PAS_DMA_TXCHAN_TCMDSTA(txch), 0);
+}
+
+static void pasemi_mac_pause_rxchan(struct pasemi_mac *mac)
+{
+ unsigned int sta, retries;
+ int rxch = rx_ring(mac)->chan.chno;
+
+ write_dma_reg(PAS_DMA_RXCHAN_CCMDSTA(rxch),
+ PAS_DMA_RXCHAN_CCMDSTA_ST);
+ for (retries = 0; retries < MAX_RETRIES; retries++) {
+ sta = read_dma_reg(PAS_DMA_RXCHAN_CCMDSTA(rxch));
+ if (!(sta & PAS_DMA_RXCHAN_CCMDSTA_ACT))
+ break;
+ cond_resched();
+ }
+
+ if (sta & PAS_DMA_RXCHAN_CCMDSTA_ACT)
+ dev_err(&mac->dma_pdev->dev,
+ "Failed to stop rx channel, ccmdsta 08%x\n", sta);
+ write_dma_reg(PAS_DMA_RXCHAN_CCMDSTA(rxch), 0);
+}
+
+static void pasemi_mac_pause_rxint(struct pasemi_mac *mac)
+{
+ unsigned int sta, retries;
+
+ write_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if),
+ PAS_DMA_RXINT_RCMDSTA_ST);
+ for (retries = 0; retries < MAX_RETRIES; retries++) {
+ sta = read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if));
+ if (!(sta & PAS_DMA_RXINT_RCMDSTA_ACT))
+ break;
+ cond_resched();
+ }
+
+ if (sta & PAS_DMA_RXINT_RCMDSTA_ACT)
+ dev_err(&mac->dma_pdev->dev,
+ "Failed to stop rx interface, rcmdsta %08x\n", sta);
+ write_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if), 0);
+}
+
static int pasemi_mac_close(struct net_device *dev)
{
struct pasemi_mac *mac = netdev_priv(dev);
unsigned int sta;
- int retries;
int rxch, txch;
rxch = rx_ring(mac)->chan.chno;
pasemi_mac_clean_tx(tx_ring(mac));
pasemi_mac_clean_rx(rx_ring(mac), RX_RING_SIZE);
- /* Disable interface */
- write_dma_reg(PAS_DMA_TXCHAN_TCMDSTA(txch),
- PAS_DMA_TXCHAN_TCMDSTA_ST);
- write_dma_reg( PAS_DMA_RXINT_RCMDSTA(mac->dma_if),
- PAS_DMA_RXINT_RCMDSTA_ST);
- write_dma_reg(PAS_DMA_RXCHAN_CCMDSTA(rxch),
- PAS_DMA_RXCHAN_CCMDSTA_ST);
-
- for (retries = 0; retries < MAX_RETRIES; retries++) {
- sta = read_dma_reg(PAS_DMA_TXCHAN_TCMDSTA(rxch));
- if (!(sta & PAS_DMA_TXCHAN_TCMDSTA_ACT))
- break;
- cond_resched();
- }
-
- if (sta & PAS_DMA_TXCHAN_TCMDSTA_ACT)
- dev_err(&mac->dma_pdev->dev, "Failed to stop tx channel\n");
-
- for (retries = 0; retries < MAX_RETRIES; retries++) {
- sta = read_dma_reg(PAS_DMA_RXCHAN_CCMDSTA(rxch));
- if (!(sta & PAS_DMA_RXCHAN_CCMDSTA_ACT))
- break;
- cond_resched();
- }
-
- if (sta & PAS_DMA_RXCHAN_CCMDSTA_ACT)
- dev_err(&mac->dma_pdev->dev, "Failed to stop rx channel\n");
-
- for (retries = 0; retries < MAX_RETRIES; retries++) {
- sta = read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if));
- if (!(sta & PAS_DMA_RXINT_RCMDSTA_ACT))
- break;
- cond_resched();
- }
-
- if (sta & PAS_DMA_RXINT_RCMDSTA_ACT)
- dev_err(&mac->dma_pdev->dev, "Failed to stop rx interface\n");
-
- /* Then, disable the channel. This must be done separately from
- * stopping, since you can't disable when active.
- */
-
- write_dma_reg(PAS_DMA_TXCHAN_TCMDSTA(txch), 0);
- write_dma_reg(PAS_DMA_RXCHAN_CCMDSTA(rxch), 0);
- write_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if), 0);
+ pasemi_mac_pause_txchan(mac);
+ pasemi_mac_pause_rxint(mac);
+ pasemi_mac_pause_rxchan(mac);
+ pasemi_mac_intf_disable(mac);
free_irq(mac->tx->chan.irq, mac->tx);
free_irq(mac->rx->chan.irq, mac->rx);
return pkts;
}
+static int pasemi_mac_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct pasemi_mac *mac = netdev_priv(dev);
+ unsigned int reg;
+ unsigned int rcmdsta;
+ int running;
+
+ if (new_mtu < PE_MIN_MTU || new_mtu > PE_MAX_MTU)
+ return -EINVAL;
+
+ running = netif_running(dev);
+
+ if (running) {
+ /* Need to stop the interface, clean out all already
+ * received buffers, free all unused buffers on the RX
+ * interface ring, then finally re-fill the rx ring with
+ * the new-size buffers and restart.
+ */
+
+ napi_disable(&mac->napi);
+ netif_tx_disable(dev);
+ pasemi_mac_intf_disable(mac);
+
+ rcmdsta = read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if));
+ pasemi_mac_pause_rxint(mac);
+ pasemi_mac_clean_rx(rx_ring(mac), RX_RING_SIZE);
+ pasemi_mac_free_rx_buffers(mac);
+ }
+
+ /* Change maxf, i.e. what size frames are accepted.
+ * Need room for ethernet header and CRC word
+ */
+ reg = read_mac_reg(mac, PAS_MAC_CFG_MACCFG);
+ reg &= ~PAS_MAC_CFG_MACCFG_MAXF_M;
+ reg |= PAS_MAC_CFG_MACCFG_MAXF(new_mtu + ETH_HLEN + 4);
+ write_mac_reg(mac, PAS_MAC_CFG_MACCFG, reg);
+
+ dev->mtu = new_mtu;
+ /* MTU + ETH_HLEN + VLAN_HLEN + 2 64B cachelines */
+ mac->bufsz = new_mtu + ETH_HLEN + ETH_FCS_LEN + LOCAL_SKB_ALIGN + 128;
+
+ if (running) {
+ write_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if),
+ rcmdsta | PAS_DMA_RXINT_RCMDSTA_EN);
+
+ rx_ring(mac)->next_to_fill = 0;
+ pasemi_mac_replenish_rx_ring(dev, RX_RING_SIZE-1);
+
+ napi_enable(&mac->napi);
+ netif_start_queue(dev);
+ pasemi_mac_intf_enable(mac);
+ }
+
+ return 0;
+}
+
static int __devinit
pasemi_mac_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
dev->stop = pasemi_mac_close;
dev->hard_start_xmit = pasemi_mac_start_tx;
dev->set_multicast_list = pasemi_mac_set_rx_mode;
+ dev->set_mac_address = pasemi_mac_set_mac_addr;
+ dev->mtu = PE_DEF_MTU;
+ /* 1500 MTU + ETH_HLEN + VLAN_HLEN + 2 64B cachelines */
+ mac->bufsz = dev->mtu + ETH_HLEN + ETH_FCS_LEN + LOCAL_SKB_ALIGN + 128;
+
+ dev->change_mtu = pasemi_mac_change_mtu;
if (err)
goto out;
struct phy_device *phydev;
struct napi_struct napi;
+ int bufsz; /* RX ring buffer size */
u8 type;
#define MAC_TYPE_GMAC 1
#define MAC_TYPE_XAUI 2
/* MAC CFG register offsets */
enum {
PAS_MAC_CFG_PCFG = 0x80,
+ PAS_MAC_CFG_MACCFG = 0x84,
+ PAS_MAC_CFG_ADR0 = 0x8c,
+ PAS_MAC_CFG_ADR1 = 0x90,
PAS_MAC_CFG_TXP = 0x98,
PAS_MAC_IPC_CHNL = 0x208,
};
#define PAS_MAC_CFG_PCFG_SPD_100M 0x00000001
#define PAS_MAC_CFG_PCFG_SPD_1G 0x00000002
#define PAS_MAC_CFG_PCFG_SPD_10G 0x00000003
+
+#define PAS_MAC_CFG_MACCFG_TXT_M 0x70000000
+#define PAS_MAC_CFG_MACCFG_TXT_S 28
+#define PAS_MAC_CFG_MACCFG_PRES_M 0x0f000000
+#define PAS_MAC_CFG_MACCFG_PRES_S 24
+#define PAS_MAC_CFG_MACCFG_MAXF_M 0x00ffff00
+#define PAS_MAC_CFG_MACCFG_MAXF_S 8
+#define PAS_MAC_CFG_MACCFG_MAXF(x) (((x) << PAS_MAC_CFG_MACCFG_MAXF_S) & \
+ PAS_MAC_CFG_MACCFG_MAXF_M)
+#define PAS_MAC_CFG_MACCFG_MINF_M 0x000000ff
+#define PAS_MAC_CFG_MACCFG_MINF_S 0
+
#define PAS_MAC_CFG_TXP_FCF 0x01000000
#define PAS_MAC_CFG_TXP_FCE 0x00800000
#define PAS_MAC_CFG_TXP_FC 0x00400000
#define NETDRV_W32_F(reg, val32) do { writel ((val32), ioaddr + (reg)); readl (ioaddr + (reg)); } while (0)
-#if MMIO_FLUSH_AUDIT_COMPLETE
+#ifdef MMIO_FLUSH_AUDIT_COMPLETE
/* write MMIO register */
#define NETDRV_W8(reg, val8) writeb ((val8), ioaddr + (reg))
return -ENOMEM;
}
SET_NETDEV_DEV(dev, &pdev->dev);
- tp = dev->priv;
+ tp = netdev_priv(dev);
/* enable device (incl. PCI PM wakeup), and bus-mastering */
rc = pci_enable_device (pdev);
return i;
}
- tp = dev->priv;
+ tp = netdev_priv(dev);
assert (ioaddr != NULL);
assert (dev != NULL);
dev->base_addr = (unsigned long) ioaddr;
/* dev->priv/tp zeroed and aligned in alloc_etherdev */
- tp = dev->priv;
+ tp = netdev_priv(dev);
/* note: tp->chipset set in netdrv_init_board */
tp->drv_flags = PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
assert (dev != NULL);
- np = dev->priv;
+ np = netdev_priv(dev);
assert (np != NULL);
unregister_netdev (dev);
static int mdio_read (struct net_device *dev, int phy_id, int location)
{
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
void *mdio_addr = tp->mmio_addr + Config4;
int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
int retval = 0;
static void mdio_write (struct net_device *dev, int phy_id, int location,
int value)
{
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
void *mdio_addr = tp->mmio_addr + Config4;
int mii_cmd =
(0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
static int netdrv_open (struct net_device *dev)
{
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
int retval;
#ifdef NETDRV_DEBUG
void *ioaddr = tp->mmio_addr;
/* Start the hardware at open or resume. */
static void netdrv_hw_start (struct net_device *dev)
{
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
u32 i;
/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
static void netdrv_init_ring (struct net_device *dev)
{
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
int i;
DPRINTK ("ENTER\n");
static void netdrv_timer (unsigned long data)
{
struct net_device *dev = (struct net_device *) data;
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
int next_tick = 60 * HZ;
int mii_lpa;
}
-static void netdrv_tx_clear (struct netdrv_private *tp)
+static void netdrv_tx_clear (struct net_device *dev)
{
int i;
+ struct netdrv_private *tp = netdev_priv(dev);
atomic_set (&tp->cur_tx, 0);
atomic_set (&tp->dirty_tx, 0);
static void netdrv_tx_timeout (struct net_device *dev)
{
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
int i;
u8 tmp8;
/* Stop a shared interrupt from scavenging while we are. */
spin_lock_irqsave (&tp->lock, flags);
- netdrv_tx_clear (tp);
+ netdrv_tx_clear (dev);
spin_unlock_irqrestore (&tp->lock, flags);
static int netdrv_start_xmit (struct sk_buff *skb, struct net_device *dev)
{
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
int entry;
DPRINTK ("%s: netdrv_rx() status %4.4x, size %4.4x,"
" cur %4.4x.\n", dev->name, rx_status,
rx_size, cur_rx);
-#if NETDRV_DEBUG > 2
+#if defined(NETDRV_DEBUG) && (NETDRV_DEBUG > 2)
{
int i;
DPRINTK ("%s: Frame contents ", dev->name);
static irqreturn_t netdrv_interrupt (int irq, void *dev_instance)
{
struct net_device *dev = (struct net_device *) dev_instance;
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
int boguscnt = max_interrupt_work;
void *ioaddr = tp->mmio_addr;
int status = 0, link_changed = 0; /* avoid bogus "uninit" warning */
static int netdrv_close (struct net_device *dev)
{
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
unsigned long flags;
spin_unlock_irqrestore (&tp->lock, flags);
- synchronize_irq ();
+ synchronize_irq (dev->irq);
free_irq (dev->irq, dev);
- netdrv_tx_clear (tp);
+ netdrv_tx_clear (dev);
pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
tp->rx_ring, tp->rx_ring_dma);
static int netdrv_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
{
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
struct mii_ioctl_data *data = if_mii(rq);
unsigned long flags;
int rc = 0;
static void netdrv_set_rx_mode (struct net_device *dev)
{
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
u32 mc_filter[2]; /* Multicast hash filter */
int i, rx_mode;
static int netdrv_suspend (struct pci_dev *pdev, pm_message_t state)
{
struct net_device *dev = pci_get_drvdata (pdev);
- struct netdrv_private *tp = dev->priv;
+ struct netdrv_private *tp = netdev_priv(dev);
void *ioaddr = tp->mmio_addr;
unsigned long flags;
static int netdrv_resume (struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata (pdev);
- struct netdrv_private *tp = dev->priv;
+ /*struct netdrv_private *tp = netdev_priv(dev);*/
if (!netif_running(dev))
return 0;
---help---
Currently supports the IP175C PHY.
+config REALTEK_PHY
+ tristate "Drivers for Realtek PHYs"
+ ---help---
+ Supports the Realtek 821x PHY.
+
config FIXED_PHY
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
---help---
obj-$(CONFIG_VITESSE_PHY) += vitesse.o
obj-$(CONFIG_BROADCOM_PHY) += broadcom.o
obj-$(CONFIG_ICPLUS_PHY) += icplus.o
+obj-$(CONFIG_REALTEK_PHY) += realtek.o
obj-$(CONFIG_FIXED_PHY) += fixed.o
obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o
.driver = { .owner = THIS_MODULE },
};
+static struct phy_driver bcm5482_driver = {
+ .phy_id = 0x0143bcb0,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Broadcom BCM5482",
+ .features = PHY_GBIT_FEATURES,
+ .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+ .config_init = bcm54xx_config_init,
+ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = bcm54xx_ack_interrupt,
+ .config_intr = bcm54xx_config_intr,
+ .driver = { .owner = THIS_MODULE },
+};
+
static int __init broadcom_init(void)
{
int ret;
ret = phy_driver_register(&bcm5461_driver);
if (ret)
goto out_5461;
+ ret = phy_driver_register(&bcm5482_driver);
+ if (ret)
+ goto out_5482;
return ret;
+out_5482:
+ phy_driver_unregister(&bcm5461_driver);
out_5461:
phy_driver_unregister(&bcm5421_driver);
out_5421:
static void __exit broadcom_exit(void)
{
+ phy_driver_unregister(&bcm5482_driver);
phy_driver_unregister(&bcm5461_driver);
phy_driver_unregister(&bcm5421_driver);
phy_driver_unregister(&bcm5411_driver);
int i;
int err = 0;
- spin_lock_init(&bus->mdio_lock);
+ mutex_init(&bus->mdio_lock);
if (NULL == bus || NULL == bus->name ||
NULL == bus->read ||
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
-#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/mii.h>
int retval;
struct mii_bus *bus = phydev->bus;
- spin_lock_bh(&bus->mdio_lock);
+ BUG_ON(in_interrupt());
+
+ mutex_lock(&bus->mdio_lock);
retval = bus->read(bus, phydev->addr, regnum);
- spin_unlock_bh(&bus->mdio_lock);
+ mutex_unlock(&bus->mdio_lock);
return retval;
}
int err;
struct mii_bus *bus = phydev->bus;
- spin_lock_bh(&bus->mdio_lock);
+ BUG_ON(in_interrupt());
+
+ mutex_lock(&bus->mdio_lock);
err = bus->write(bus, phydev->addr, regnum, val);
- spin_unlock_bh(&bus->mdio_lock);
+ mutex_unlock(&bus->mdio_lock);
return err;
}
{
int err;
- spin_lock_bh(&phydev->lock);
+ mutex_lock(&phydev->lock);
if (AUTONEG_DISABLE == phydev->autoneg)
phy_sanitize_settings(phydev);
}
out_unlock:
- spin_unlock_bh(&phydev->lock);
+ mutex_unlock(&phydev->lock);
return err;
}
EXPORT_SYMBOL(phy_start_aneg);
static void phy_change(struct work_struct *work);
+static void phy_state_machine(struct work_struct *work);
static void phy_timer(unsigned long data);
/**
{
phydev->adjust_state = handler;
+ INIT_WORK(&phydev->state_queue, phy_state_machine);
init_timer(&phydev->phy_timer);
phydev->phy_timer.function = &phy_timer;
phydev->phy_timer.data = (unsigned long) phydev;
void phy_stop_machine(struct phy_device *phydev)
{
del_timer_sync(&phydev->phy_timer);
+ cancel_work_sync(&phydev->state_queue);
- spin_lock_bh(&phydev->lock);
+ mutex_lock(&phydev->lock);
if (phydev->state > PHY_UP)
phydev->state = PHY_UP;
- spin_unlock_bh(&phydev->lock);
+ mutex_unlock(&phydev->lock);
phydev->adjust_state = NULL;
}
*/
void phy_error(struct phy_device *phydev)
{
- spin_lock_bh(&phydev->lock);
+ mutex_lock(&phydev->lock);
phydev->state = PHY_HALTED;
- spin_unlock_bh(&phydev->lock);
+ mutex_unlock(&phydev->lock);
}
/**
if (err)
goto phy_err;
- spin_lock_bh(&phydev->lock);
+ mutex_lock(&phydev->lock);
if ((PHY_RUNNING == phydev->state) || (PHY_NOLINK == phydev->state))
phydev->state = PHY_CHANGELINK;
- spin_unlock_bh(&phydev->lock);
+ mutex_unlock(&phydev->lock);
atomic_dec(&phydev->irq_disable);
enable_irq(phydev->irq);
*/
void phy_stop(struct phy_device *phydev)
{
- spin_lock_bh(&phydev->lock);
+ mutex_lock(&phydev->lock);
if (PHY_HALTED == phydev->state)
goto out_unlock;
phydev->state = PHY_HALTED;
out_unlock:
- spin_unlock_bh(&phydev->lock);
+ mutex_unlock(&phydev->lock);
/*
* Cannot call flush_scheduled_work() here as desired because
*/
void phy_start(struct phy_device *phydev)
{
- spin_lock_bh(&phydev->lock);
+ mutex_lock(&phydev->lock);
switch (phydev->state) {
case PHY_STARTING:
default:
break;
}
- spin_unlock_bh(&phydev->lock);
+ mutex_unlock(&phydev->lock);
}
EXPORT_SYMBOL(phy_stop);
EXPORT_SYMBOL(phy_start);
-/* PHY timer which handles the state machine */
-static void phy_timer(unsigned long data)
+/**
+ * phy_state_machine - Handle the state machine
+ * @work: work_struct that describes the work to be done
+ *
+ * Description: Scheduled by the state_queue workqueue each time
+ * phy_timer is triggered.
+ */
+static void phy_state_machine(struct work_struct *work)
{
- struct phy_device *phydev = (struct phy_device *)data;
+ struct phy_device *phydev =
+ container_of(work, struct phy_device, state_queue);
int needs_aneg = 0;
int err = 0;
- spin_lock_bh(&phydev->lock);
+ mutex_lock(&phydev->lock);
if (phydev->adjust_state)
phydev->adjust_state(phydev->attached_dev);
break;
}
- spin_unlock_bh(&phydev->lock);
+ mutex_unlock(&phydev->lock);
if (needs_aneg)
err = phy_start_aneg(phydev);
mod_timer(&phydev->phy_timer, jiffies + PHY_STATE_TIME * HZ);
}
+/* PHY timer which schedules the state machine work */
+static void phy_timer(unsigned long data)
+{
+ struct phy_device *phydev = (struct phy_device *)data;
+
+ /*
+ * PHY I/O operations can potentially sleep so we ensure that
+ * it's done from a process context
+ */
+ schedule_work(&phydev->state_queue);
+}
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
-#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/mii.h>
dev->state = PHY_DOWN;
- spin_lock_init(&dev->lock);
+ mutex_init(&dev->lock);
return dev;
}
if (!(phydrv->flags & PHY_HAS_INTERRUPT))
phydev->irq = PHY_POLL;
- spin_lock_bh(&phydev->lock);
+ mutex_lock(&phydev->lock);
/* Start out supporting everything. Eventually,
* a controller will attach, and may modify one
if (phydev->drv->probe)
err = phydev->drv->probe(phydev);
- spin_unlock_bh(&phydev->lock);
+ mutex_unlock(&phydev->lock);
return err;
phydev = to_phy_device(dev);
- spin_lock_bh(&phydev->lock);
+ mutex_lock(&phydev->lock);
phydev->state = PHY_DOWN;
- spin_unlock_bh(&phydev->lock);
+ mutex_unlock(&phydev->lock);
if (phydev->drv->remove)
phydev->drv->remove(phydev);
--- /dev/null
+/*
+ * drivers/net/phy/realtek.c
+ *
+ * Driver for Realtek PHYs
+ *
+ * Author: Johnson Leung <r58129@freescale.com>
+ *
+ * Copyright (c) 2004 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/phy.h>
+
+#define RTL821x_PHYSR 0x11
+#define RTL821x_PHYSR_DUPLEX 0x2000
+#define RTL821x_PHYSR_SPEED 0xc000
+#define RTL821x_INER 0x12
+#define RTL821x_INER_INIT 0x6400
+#define RTL821x_INSR 0x13
+
+MODULE_DESCRIPTION("Realtek PHY driver");
+MODULE_AUTHOR("Johnson Leung");
+MODULE_LICENSE("GPL");
+
+static int rtl821x_ack_interrupt(struct phy_device *phydev)
+{
+ int err;
+
+ err = phy_read(phydev, RTL821x_INSR);
+
+ return (err < 0) ? err : 0;
+}
+
+static int rtl821x_config_intr(struct phy_device *phydev)
+{
+ int err;
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+ err = phy_write(phydev, RTL821x_INER,
+ RTL821x_INER_INIT);
+ else
+ err = phy_write(phydev, RTL821x_INER, 0);
+
+ return err;
+}
+
+/* RTL8211B */
+static struct phy_driver rtl821x_driver = {
+ .phy_id = 0x001cc912,
+ .name = "RTL821x Gigabit Ethernet",
+ .phy_id_mask = 0x001fffff,
+ .features = PHY_GBIT_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .config_aneg = &genphy_config_aneg,
+ .read_status = &genphy_read_status,
+ .ack_interrupt = &rtl821x_ack_interrupt,
+ .config_intr = &rtl821x_config_intr,
+ .driver = { .owner = THIS_MODULE,},
+};
+
+static int __init realtek_init(void)
+{
+ int ret;
+
+ ret = phy_driver_register(&rtl821x_driver);
+
+ return ret;
+}
+
+static void __exit realtek_exit(void)
+{
+ phy_driver_unregister(&rtl821x_driver);
+}
+
+module_init(realtek_init);
+module_exit(realtek_exit);
lro->iph = ip;
lro->tcph = tcp;
lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq);
- lro->tcp_ack = ntohl(tcp->ack_seq);
+ lro->tcp_ack = tcp->ack_seq;
lro->sg_num = 1;
lro->total_len = ntohs(ip->tot_len);
lro->frags_len = 0;
* already been done.
*/
if (tcp->doff == 8) {
- u32 *ptr;
- ptr = (u32 *)(tcp+1);
+ __be32 *ptr;
+ ptr = (__be32 *)(tcp+1);
lro->saw_ts = 1;
- lro->cur_tsval = *(ptr+1);
+ lro->cur_tsval = ntohl(*(ptr+1));
lro->cur_tsecr = *(ptr+2);
}
lro->in_use = 1;
/* Update tsecr field if this session has timestamps enabled */
if (lro->saw_ts) {
- u32 *ptr = (u32 *)(tcp + 1);
+ __be32 *ptr = (__be32 *)(tcp + 1);
*(ptr+2) = lro->cur_tsecr;
}
lro->window = tcp->window;
if (lro->saw_ts) {
- u32 *ptr;
+ __be32 *ptr;
/* Update tsecr and tsval from this packet */
- ptr = (u32 *) (tcp + 1);
- lro->cur_tsval = *(ptr + 1);
+ ptr = (__be32 *)(tcp+1);
+ lro->cur_tsval = ntohl(*(ptr+1));
lro->cur_tsecr = *(ptr + 2);
}
}
/* Ensure timestamp value increases monotonically */
if (l_lro)
- if (l_lro->cur_tsval > *((u32 *)(ptr+2)))
+ if (l_lro->cur_tsval > ntohl(*((__be32 *)(ptr+2))))
return -1;
/* timestamp echo reply should be non-zero */
- if (*((u32 *)(ptr+6)) == 0)
+ if (*((__be32 *)(ptr+6)) == 0)
return -1;
}
int in_use;
__be16 window;
u32 cur_tsval;
- u32 cur_tsecr;
+ __be32 cur_tsecr;
u8 saw_ts;
};
{ "SiS 191 PCI Gigabit Ethernet adapter" },
};
-static struct pci_device_id sis190_pci_tbl[] __devinitdata = {
+static struct pci_device_id sis190_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_SI, 0x0190), 0, 0, 0 },
{ PCI_DEVICE(PCI_VENDOR_ID_SI, 0x0191), 0, 0, 1 },
{ 0, },
req->cmd.sba_cmd = REQUEST_ALLOCATION ;
/*
- * set the parameter type and parameter lenght of all used
+ * set the parameter type and parameter length of all used
* parameters
*/
/* u_long td; transmit descriptor */
/* struct fddi_mac *mac; mac frame pointer */
/* unsigned off; start address within buffer memory */
-/* int len ; lenght of the frame including the FC */
+/* int len ; length of the frame including the FC */
{
int i ;
u_int *p ;
DB_RX("frame length = %d",len,0,4) ;
/*
- * check the frame_lenght and all error flags
+ * check the frame_length and all error flags
*/
if (rfsw & (RX_MSRABT|RX_FS_E|RX_FS_CRC|RX_FS_IMPL)){
if (rfsw & RD_S_MSRABT) {
static const u32 phy_power[] = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD };
static const u32 coma_mode[] = { PCI_Y2_PHY1_COMA, PCI_Y2_PHY2_COMA };
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
/* Turn on/off phy power saving */
if (onoff)
reg1 |= coma_mode[port];
sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
- reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+ sky2_pci_read32(hw, PCI_DEV_REG1);
udelay(100);
}
imask |= portirq_msk[port];
sky2_write32(hw, B0_IMSK, imask);
+ sky2_set_multicast(dev);
return 0;
err_out:
if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) {
u16 pci_err;
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
pci_err = sky2_pci_read16(hw, PCI_STATUS);
if (net_ratelimit())
dev_err(&pdev->dev, "PCI hardware error (0x%x)\n",
sky2_pci_write16(hw, PCI_STATUS,
pci_err | PCI_STATUS_ERROR_BITS);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
}
if (status & Y2_IS_PCI_EXP) {
/* PCI-Express uncorrectable Error occurred */
u32 err;
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
err = sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS,
0xfffffffful);
dev_err(&pdev->dev, "PCI Express error (0x%x)\n", err);
sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
}
if (status & Y2_HWE_L1_MASK)
}
sky2_power_on(hw);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
for (i = 0; i < hw->ports; i++) {
sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
err = sky2_up(dev);
if (err)
dev_close(dev);
- else
- sky2_set_multicast(dev);
}
return err;
dev_close(dev);
goto out;
}
-
- sky2_set_multicast(dev);
}
}
.get_link = bigmac_get_link,
};
-static int __init bigmac_ether_init(struct sbus_dev *qec_sdev)
+static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
{
struct net_device *dev;
static int version_printed;
qecp->gregs + GLOB_RSIZE);
}
-static u8 __init qec_get_burst(struct device_node *dp)
+static u8 __devinit qec_get_burst(struct device_node *dp)
{
u8 bsizes, bsizes_more;
return bsizes;
}
-static struct sunqec * __init get_qec(struct sbus_dev *child_sdev)
+static struct sunqec * __devinit get_qec(struct sbus_dev *child_sdev)
{
struct sbus_dev *qec_sdev = child_sdev->parent;
struct sunqec *qecp;
return NULL;
}
-static int __init qec_ether_init(struct sbus_dev *sdev)
+static int __devinit qec_ether_init(struct sbus_dev *sdev)
{
static unsigned version_printed;
struct net_device *dev;
.handshake_complete = vnet_handshake_complete,
};
-static void print_version(void)
+static void __devinit print_version(void)
{
static int version_printed;
* - Madge Smart 16/4 PCI Mk2
*
* Maintainer(s):
- * AF Adam Fritzler mid@auk.cx
+ * AF Adam Fritzler
*
* Modification History:
* 30-Dec-99 AF Split off from the tms380tr driver.
* abyss.h: Header for the abyss tms380tr module
*
* Authors:
- * - Adam Fritzler <mid@auk.cx>
+ * - Adam Fritzler
*/
#ifndef __LINUX_MADGETR_H
* - Madge Smart 16/4 Ringnode MC32 (??)
*
* Maintainer(s):
- * AF Adam Fritzler mid@auk.cx
+ * AF Adam Fritzler
*
* Modification History:
* 16-Jan-00 AF Created
* madgemc.h: Header for the madgemc tms380tr module
*
* Authors:
- * - Adam Fritzler <mid@auk.cx>
+ * - Adam Fritzler
*/
#ifndef __LINUX_MADGEMC_H
}
-static int olympic_open(struct net_device *dev)
+static int __devinit olympic_open(struct net_device *dev)
{
struct olympic_private *olympic_priv=netdev_priv(dev);
u8 __iomem *olympic_mmio=olympic_priv->olympic_mmio,*init_srb;
* - Proteon 1392, 1392+
*
* Maintainer(s):
- * AF Adam Fritzler mid@auk.cx
+ * AF Adam Fritzler
* JF Jochen Friedrich jochen@scram.de
*
* Modification History:
* - SysKonnect TR4/16(+) ISA (SK-4190)
*
* Maintainer(s):
- * AF Adam Fritzler mid@auk.cx
+ * AF Adam Fritzler
* JF Jochen Friedrich jochen@scram.de
*
* Modification History:
* Maintainer(s):
* JS Jay Schulist jschlst@samba.org
* CG Christoph Goos cgoos@syskonnect.de
- * AF Adam Fritzler mid@auk.cx
+ * AF Adam Fritzler
* MLP Mike Phillips phillim@amtrak.com
* JF Jochen Friedrich jochen@scram.de
*
*
* Authors:
* - Christoph Goos <cgoos@syskonnect.de>
- * - Adam Fritzler <mid@auk.cx>
+ * - Adam Fritzler
*/
#ifndef __LINUX_TMS380TR_H
* - 3Com 3C339 Token Link Velocity
*
* Maintainer(s):
- * AF Adam Fritzler mid@auk.cx
+ * AF Adam Fritzler
*
* Modification History:
* 30-Dec-99 AF Split off from the tms380tr driver.
if (!ugeth)
return;
- if (ugeth->uccf)
+ if (ugeth->uccf) {
ucc_fast_free(ugeth->uccf);
+ ugeth->uccf = NULL;
+ }
if (ugeth->p_thread_data_tx) {
qe_muram_free(ugeth->thread_dat_tx_offset);
ug_info = ugeth->ug_info;
uf_info = &ug_info->uf_info;
- /* Create CQs for hash tables */
- INIT_LIST_HEAD(&ugeth->group_hash_q);
- INIT_LIST_HEAD(&ugeth->ind_hash_q);
-
if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
(uf_info->bd_mem_part == MEM_PART_MURAM))) {
if (netif_msg_probe(ugeth))
return IRQ_HANDLED;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void ucc_netpoll(struct net_device *dev)
+{
+ struct ucc_geth_private *ugeth = netdev_priv(dev);
+ int irq = ugeth->ug_info->uf_info.irq;
+
+ disable_irq(irq);
+ ucc_geth_irq_handler(irq, dev);
+ enable_irq(irq);
+}
+#endif /* CONFIG_NET_POLL_CONTROLLER */
+
/* Called when something needs to use the ethernet device */
/* Returns 0 for success. */
static int ucc_geth_open(struct net_device *dev)
ugeth = netdev_priv(dev);
spin_lock_init(&ugeth->lock);
+ /* Create CQs for hash tables */
+ INIT_LIST_HEAD(&ugeth->group_hash_q);
+ INIT_LIST_HEAD(&ugeth->ind_hash_q);
+
dev_set_drvdata(device, dev);
/* Set the dev->base_addr to the gfar reg region */
#ifdef CONFIG_UGETH_NAPI
netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, UCC_GETH_DEV_WEIGHT);
#endif /* CONFIG_UGETH_NAPI */
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = ucc_netpoll;
+#endif
dev->stop = ucc_geth_close;
// dev->change_mtu = ucc_geth_change_mtu;
dev->mtu = 1500;
struct net_device *dev = dev_get_drvdata(device);
struct ucc_geth_private *ugeth = netdev_priv(dev);
- dev_set_drvdata(device, NULL);
- ucc_geth_memclean(ugeth);
+ unregister_netdev(dev);
free_netdev(dev);
+ ucc_geth_memclean(ugeth);
+ dev_set_drvdata(device, NULL);
return 0;
}
netdev->set_multicast_list = rtl8150_set_multicast;
netdev->set_mac_address = rtl8150_set_mac_address;
netdev->get_stats = rtl8150_netdev_stats;
- netdev->mtu = RTL8150_MTU;
SET_ETHTOOL_OPS(netdev, &ops);
dev->intr_interval = 100; /* 100ms */
}
#endif
-static void rhine_hw_init(struct net_device *dev, long pioaddr)
+static void __devinit rhine_hw_init(struct net_device *dev, long pioaddr)
{
struct rhine_private *rp = netdev_priv(dev);
* for 64bit hardware platforms.
*
* TODO
- * Big-endian support
* rx_copybreak/alignment
* Scatter gather
* More testing
* Init state, all RD entries belong to the NIC
*/
for (i = 0; i < vptr->options.numrx; ++i)
- vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC;
+ vptr->rd_ring[i].rdesc0.len |= OWNED_BY_NIC;
writew(vptr->options.numrx, ®s->RBRDU);
writel(vptr->rd_pool_dma, ®s->RDBaseLo);
vptr->int_mask = INT_MASK_DEF;
- writel(cpu_to_le32(vptr->rd_pool_dma), ®s->RDBaseLo);
+ writel(vptr->rd_pool_dma, ®s->RDBaseLo);
writew(vptr->options.numrx - 1, ®s->RDCSize);
mac_rx_queue_run(regs);
mac_rx_queue_wake(regs);
writew(vptr->options.numtx - 1, ®s->TDCSize);
for (i = 0; i < vptr->num_txq; i++) {
- writel(cpu_to_le32(vptr->td_pool_dma[i]), &(regs->TDBaseLo[i]));
+ writel(vptr->td_pool_dma[i], ®s->TDBaseLo[i]);
mac_tx_queue_run(regs, i);
}
dirty = vptr->rd_dirty - unusable;
for (avail = vptr->rd_filled & 0xfffc; avail; avail--) {
dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
- vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC;
+ vptr->rd_ring[dirty].rdesc0.len |= OWNED_BY_NIC;
}
writew(vptr->rd_filled & 0xfffc, ®s->RBRDU);
struct rx_desc *rd = vptr->rd_ring + dirty;
/* Fine for an all zero Rx desc at init time as well */
- if (rd->rdesc0.owner == OWNED_BY_NIC)
+ if (rd->rdesc0.len & OWNED_BY_NIC)
break;
if (!vptr->rd_info[dirty].skb) {
if (!vptr->rd_info[rd_curr].skb)
break;
- if (rd->rdesc0.owner == OWNED_BY_NIC)
+ if (rd->rdesc0.len & OWNED_BY_NIC)
break;
rmb();
/*
* Don't drop CE or RL error frame although RXOK is off
*/
- if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) {
+ if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) {
if (velocity_receive_frame(vptr, rd_curr) < 0)
stats->rx_dropped++;
} else {
stats->rx_dropped++;
}
- rd->inten = 1;
+ rd->size |= RX_INTEN;
vptr->dev->last_rx = jiffies;
struct net_device_stats *stats = &vptr->stats;
struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
struct rx_desc *rd = &(vptr->rd_ring[idx]);
- int pkt_len = rd->rdesc0.len;
+ int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff;
struct sk_buff *skb;
if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
*/
*((u32 *) & (rd->rdesc0)) = 0;
- rd->len = cpu_to_le32(vptr->rx_buf_sz);
- rd->inten = 1;
+ rd->size = cpu_to_le16(vptr->rx_buf_sz) | RX_INTEN;
rd->pa_low = cpu_to_le32(rd_info->skb_dma);
rd->pa_high = 0;
return 0;
td = &(vptr->td_rings[qnum][idx]);
tdinfo = &(vptr->td_infos[qnum][idx]);
- if (td->tdesc0.owner == OWNED_BY_NIC)
+ if (td->tdesc0.len & OWNED_BY_NIC)
break;
if ((works++ > 15))
for (i = 0; i < tdinfo->nskb_dma; i++) {
#ifdef VELOCITY_ZERO_COPY_SUPPORT
- pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], td->tdesc1.len, PCI_DMA_TODEVICE);
+ pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], le16_to_cpu(td->tdesc1.len), PCI_DMA_TODEVICE);
#else
pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i], skb->len, PCI_DMA_TODEVICE);
#endif
struct velocity_td_info *tdinfo;
unsigned long flags;
int index;
-
int pktlen = skb->len;
+ __le16 len = cpu_to_le16(pktlen);
#ifdef VELOCITY_ZERO_COPY_SUPPORT
if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) {
td_ptr = &(vptr->td_rings[qnum][index]);
tdinfo = &(vptr->td_infos[qnum][index]);
- td_ptr->tdesc1.TCPLS = TCPLS_NORMAL;
td_ptr->tdesc1.TCR = TCR0_TIC;
- td_ptr->td_buf[0].queue = 0;
+ td_ptr->td_buf[0].size &= ~TD_QUEUE;
/*
* Pad short frames.
if (pktlen < ETH_ZLEN) {
/* Cannot occur until ZC support */
pktlen = ETH_ZLEN;
+ len = cpu_to_le16(ETH_ZLEN);
skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len);
tdinfo->skb = skb;
tdinfo->skb_dma[0] = tdinfo->buf_dma;
- td_ptr->tdesc0.pktsize = pktlen;
+ td_ptr->tdesc0.len = len;
td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
td_ptr->td_buf[0].pa_high = 0;
- td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
+ td_ptr->td_buf[0].size = len; /* queue is 0 anyway */
tdinfo->nskb_dma = 1;
- td_ptr->tdesc1.CMDZ = 2;
} else
#ifdef VELOCITY_ZERO_COPY_SUPPORT
if (skb_shinfo(skb)->nr_frags > 0) {
if (nfrags > 6) {
skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
tdinfo->skb_dma[0] = tdinfo->buf_dma;
- td_ptr->tdesc0.pktsize =
+ td_ptr->tdesc0.len = len;
td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
td_ptr->td_buf[0].pa_high = 0;
- td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
+ td_ptr->td_buf[0].size = len; /* queue is 0 anyway */
tdinfo->nskb_dma = 1;
- td_ptr->tdesc1.CMDZ = 2;
} else {
int i = 0;
tdinfo->nskb_dma = 0;
- tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data, skb->len - skb->data_len, PCI_DMA_TODEVICE);
+ tdinfo->skb_dma[i] = pci_map_single(vptr->pdev, skb->data,
+ skb_headlen(skb), PCI_DMA_TODEVICE);
- td_ptr->tdesc0.pktsize = pktlen;
+ td_ptr->tdesc0.len = len;
/* FIXME: support 48bit DMA later */
td_ptr->td_buf[i].pa_low = cpu_to_le32(tdinfo->skb_dma);
td_ptr->td_buf[i].pa_high = 0;
- td_ptr->td_buf[i].bufsize = skb->len->skb->data_len;
+ td_ptr->td_buf[i].size = cpu_to_le16(skb_headlen(skb));
for (i = 0; i < nfrags; i++) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
- void *addr = ((void *) page_address(frag->page + frag->page_offset));
+ void *addr = (void *)page_address(frag->page) + frag->page_offset;
tdinfo->skb_dma[i + 1] = pci_map_single(vptr->pdev, addr, frag->size, PCI_DMA_TODEVICE);
td_ptr->td_buf[i + 1].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1]);
td_ptr->td_buf[i + 1].pa_high = 0;
- td_ptr->td_buf[i + 1].bufsize = frag->size;
+ td_ptr->td_buf[i + 1].size = cpu_to_le16(frag->size);
}
tdinfo->nskb_dma = i - 1;
- td_ptr->tdesc1.CMDZ = i;
}
} else
*/
tdinfo->skb = skb;
tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
- td_ptr->tdesc0.pktsize = pktlen;
+ td_ptr->tdesc0.len = len;
td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
td_ptr->td_buf[0].pa_high = 0;
- td_ptr->td_buf[0].bufsize = td_ptr->tdesc0.pktsize;
+ td_ptr->td_buf[0].size = len;
tdinfo->nskb_dma = 1;
- td_ptr->tdesc1.CMDZ = 2;
}
+ td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1) * 16;
if (vptr->vlgrp && vlan_tx_tag_present(skb)) {
- td_ptr->tdesc1.pqinf.VID = vlan_tx_tag_get(skb);
- td_ptr->tdesc1.pqinf.priority = 0;
- td_ptr->tdesc1.pqinf.CFI = 0;
+ td_ptr->tdesc1.vlan = cpu_to_le16(vlan_tx_tag_get(skb));
td_ptr->tdesc1.TCR |= TCR0_VETAG;
}
if (prev < 0)
prev = vptr->options.numtx - 1;
- td_ptr->tdesc0.owner = OWNED_BY_NIC;
+ td_ptr->tdesc0.len |= OWNED_BY_NIC;
vptr->td_used[qnum]++;
vptr->td_curr[qnum] = (index + 1) % vptr->options.numtx;
netif_stop_queue(dev);
td_ptr = &(vptr->td_rings[qnum][prev]);
- td_ptr->td_buf[0].queue = 1;
+ td_ptr->td_buf[0].size |= TD_QUEUE;
mac_tx_queue_wake(vptr->mac_regs, qnum);
}
dev->trans_start = jiffies;
velocity_save_context(vptr, &vptr->context);
velocity_shutdown(vptr);
velocity_set_wol(vptr);
- pci_enable_wake(pdev, 3, 1);
+ pci_enable_wake(pdev, PCI_D3hot, 1);
pci_set_power_state(pdev, PCI_D3hot);
} else {
velocity_save_context(vptr, &vptr->context);
* Bits in the RSR0 register
*/
-#define RSR_DETAG 0x0080
-#define RSR_SNTAG 0x0040
-#define RSR_RXER 0x0020
-#define RSR_RL 0x0010
-#define RSR_CE 0x0008
-#define RSR_FAE 0x0004
-#define RSR_CRC 0x0002
-#define RSR_VIDM 0x0001
+#define RSR_DETAG cpu_to_le16(0x0080)
+#define RSR_SNTAG cpu_to_le16(0x0040)
+#define RSR_RXER cpu_to_le16(0x0020)
+#define RSR_RL cpu_to_le16(0x0010)
+#define RSR_CE cpu_to_le16(0x0008)
+#define RSR_FAE cpu_to_le16(0x0004)
+#define RSR_CRC cpu_to_le16(0x0002)
+#define RSR_VIDM cpu_to_le16(0x0001)
/*
* Bits in the RSR1 register
*/
-#define RSR_RXOK 0x8000 // rx OK
-#define RSR_PFT 0x4000 // Perfect filtering address match
-#define RSR_MAR 0x2000 // MAC accept multicast address packet
-#define RSR_BAR 0x1000 // MAC accept broadcast address packet
-#define RSR_PHY 0x0800 // MAC accept physical address packet
-#define RSR_VTAG 0x0400 // 802.1p/1q tagging packet indicator
-#define RSR_STP 0x0200 // start of packet
-#define RSR_EDP 0x0100 // end of packet
-
-/*
- * Bits in the RSR1 register
- */
-
-#define RSR1_RXOK 0x80 // rx OK
-#define RSR1_PFT 0x40 // Perfect filtering address match
-#define RSR1_MAR 0x20 // MAC accept multicast address packet
-#define RSR1_BAR 0x10 // MAC accept broadcast address packet
-#define RSR1_PHY 0x08 // MAC accept physical address packet
-#define RSR1_VTAG 0x04 // 802.1p/1q tagging packet indicator
-#define RSR1_STP 0x02 // start of packet
-#define RSR1_EDP 0x01 // end of packet
+#define RSR_RXOK cpu_to_le16(0x8000) // rx OK
+#define RSR_PFT cpu_to_le16(0x4000) // Perfect filtering address match
+#define RSR_MAR cpu_to_le16(0x2000) // MAC accept multicast address packet
+#define RSR_BAR cpu_to_le16(0x1000) // MAC accept broadcast address packet
+#define RSR_PHY cpu_to_le16(0x0800) // MAC accept physical address packet
+#define RSR_VTAG cpu_to_le16(0x0400) // 802.1p/1q tagging packet indicator
+#define RSR_STP cpu_to_le16(0x0200) // start of packet
+#define RSR_EDP cpu_to_le16(0x0100) // end of packet
/*
* Bits in the CSM register
* Bits in the TSR0 register
*/
-#define TSR0_ABT 0x0080 // Tx abort because of excessive collision
-#define TSR0_OWT 0x0040 // Jumbo frame Tx abort
-#define TSR0_OWC 0x0020 // Out of window collision
-#define TSR0_COLS 0x0010 // experience collision in this transmit event
-#define TSR0_NCR3 0x0008 // collision retry counter[3]
-#define TSR0_NCR2 0x0004 // collision retry counter[2]
-#define TSR0_NCR1 0x0002 // collision retry counter[1]
-#define TSR0_NCR0 0x0001 // collision retry counter[0]
-#define TSR0_TERR 0x8000 //
-#define TSR0_FDX 0x4000 // current transaction is serviced by full duplex mode
-#define TSR0_GMII 0x2000 // current transaction is serviced by GMII mode
-#define TSR0_LNKFL 0x1000 // packet serviced during link down
-#define TSR0_SHDN 0x0400 // shutdown case
-#define TSR0_CRS 0x0200 // carrier sense lost
-#define TSR0_CDH 0x0100 // AQE test fail (CD heartbeat)
-
-/*
- * Bits in the TSR1 register
- */
-
-#define TSR1_TERR 0x80 //
-#define TSR1_FDX 0x40 // current transaction is serviced by full duplex mode
-#define TSR1_GMII 0x20 // current transaction is serviced by GMII mode
-#define TSR1_LNKFL 0x10 // packet serviced during link down
-#define TSR1_SHDN 0x04 // shutdown case
-#define TSR1_CRS 0x02 // carrier sense lost
-#define TSR1_CDH 0x01 // AQE test fail (CD heartbeat)
+#define TSR0_ABT cpu_to_le16(0x0080) // Tx abort because of excessive collision
+#define TSR0_OWT cpu_to_le16(0x0040) // Jumbo frame Tx abort
+#define TSR0_OWC cpu_to_le16(0x0020) // Out of window collision
+#define TSR0_COLS cpu_to_le16(0x0010) // experience collision in this transmit event
+#define TSR0_NCR3 cpu_to_le16(0x0008) // collision retry counter[3]
+#define TSR0_NCR2 cpu_to_le16(0x0004) // collision retry counter[2]
+#define TSR0_NCR1 cpu_to_le16(0x0002) // collision retry counter[1]
+#define TSR0_NCR0 cpu_to_le16(0x0001) // collision retry counter[0]
+#define TSR0_TERR cpu_to_le16(0x8000) //
+#define TSR0_FDX cpu_to_le16(0x4000) // current transaction is serviced by full duplex mode
+#define TSR0_GMII cpu_to_le16(0x2000) // current transaction is serviced by GMII mode
+#define TSR0_LNKFL cpu_to_le16(0x1000) // packet serviced during link down
+#define TSR0_SHDN cpu_to_le16(0x0400) // shutdown case
+#define TSR0_CRS cpu_to_le16(0x0200) // carrier sense lost
+#define TSR0_CDH cpu_to_le16(0x0100) // AQE test fail (CD heartbeat)
//
// Bits in the TCR0 register
*/
struct rdesc0 {
- u16 RSR; /* Receive status */
- u16 len:14; /* Received packet length */
- u16 reserved:1;
- u16 owner:1; /* Who owns this buffer ? */
+ __le16 RSR; /* Receive status */
+ __le16 len; /* bits 0--13; bit 15 - owner */
};
struct rdesc1 {
- u16 PQTAG;
+ __le16 PQTAG;
u8 CSM;
u8 IPKT;
};
+enum {
+ RX_INTEN = __constant_cpu_to_le16(0x8000)
+};
+
struct rx_desc {
struct rdesc0 rdesc0;
struct rdesc1 rdesc1;
- u32 pa_low; /* Low 32 bit PCI address */
- u16 pa_high; /* Next 16 bit PCI address (48 total) */
- u16 len:15; /* Frame size */
- u16 inten:1; /* Enable interrupt */
+ __le32 pa_low; /* Low 32 bit PCI address */
+ __le16 pa_high; /* Next 16 bit PCI address (48 total) */
+ __le16 size; /* bits 0--14 - frame size, bit 15 - enable int. */
} __attribute__ ((__packed__));
/*
*/
struct tdesc0 {
- u16 TSR; /* Transmit status register */
- u16 pktsize:14; /* Size of frame */
- u16 reserved:1;
- u16 owner:1; /* Who owns the buffer */
+ __le16 TSR; /* Transmit status register */
+ __le16 len; /* bits 0--13 - size of frame, bit 15 - owner */
};
-struct pqinf { /* Priority queue info */
- u16 VID:12;
- u16 CFI:1;
- u16 priority:3;
-} __attribute__ ((__packed__));
-
struct tdesc1 {
- struct pqinf pqinf;
+ __le16 vlan;
u8 TCR;
- u8 TCPLS:2;
- u8 reserved:2;
- u8 CMDZ:4;
+ u8 cmd; /* bits 0--1 - TCPLS, bits 4--7 - CMDZ */
} __attribute__ ((__packed__));
+enum {
+ TD_QUEUE = __constant_cpu_to_le16(0x8000)
+};
+
struct td_buf {
- u32 pa_low;
- u16 pa_high;
- u16 bufsize:14;
- u16 reserved:1;
- u16 queue:1;
+ __le32 pa_low;
+ __le16 pa_high;
+ __le16 size; /* bits 0--13 - size, bit 15 - queue */
} __attribute__ ((__packed__));
struct tx_desc {
enum velocity_owner {
OWNED_BY_HOST = 0,
- OWNED_BY_NIC = 1
+ OWNED_BY_NIC = __constant_cpu_to_le16(0x8000)
};
volatile u8 RCR;
volatile u8 TCR;
- volatile u32 CR0Set; /* 0x08 */
- volatile u32 CR0Clr; /* 0x0C */
+ volatile __le32 CR0Set; /* 0x08 */
+ volatile __le32 CR0Clr; /* 0x0C */
volatile u8 MARCAM[8]; /* 0x10 */
- volatile u32 DecBaseHi; /* 0x18 */
- volatile u16 DbfBaseHi; /* 0x1C */
- volatile u16 reserved_1E;
+ volatile __le32 DecBaseHi; /* 0x18 */
+ volatile __le16 DbfBaseHi; /* 0x1C */
+ volatile __le16 reserved_1E;
- volatile u16 ISRCTL; /* 0x20 */
+ volatile __le16 ISRCTL; /* 0x20 */
volatile u8 TXESR;
volatile u8 RXESR;
- volatile u32 ISR; /* 0x24 */
- volatile u32 IMR;
+ volatile __le32 ISR; /* 0x24 */
+ volatile __le32 IMR;
- volatile u32 TDStatusPort; /* 0x2C */
+ volatile __le32 TDStatusPort; /* 0x2C */
- volatile u16 TDCSRSet; /* 0x30 */
+ volatile __le16 TDCSRSet; /* 0x30 */
volatile u8 RDCSRSet;
volatile u8 reserved_33;
- volatile u16 TDCSRClr;
+ volatile __le16 TDCSRClr;
volatile u8 RDCSRClr;
volatile u8 reserved_37;
- volatile u32 RDBaseLo; /* 0x38 */
- volatile u16 RDIdx; /* 0x3C */
- volatile u16 reserved_3E;
+ volatile __le32 RDBaseLo; /* 0x38 */
+ volatile __le16 RDIdx; /* 0x3C */
+ volatile __le16 reserved_3E;
- volatile u32 TDBaseLo[4]; /* 0x40 */
+ volatile __le32 TDBaseLo[4]; /* 0x40 */
- volatile u16 RDCSize; /* 0x50 */
- volatile u16 TDCSize; /* 0x52 */
- volatile u16 TDIdx[4]; /* 0x54 */
- volatile u16 tx_pause_timer; /* 0x5C */
- volatile u16 RBRDU; /* 0x5E */
+ volatile __le16 RDCSize; /* 0x50 */
+ volatile __le16 TDCSize; /* 0x52 */
+ volatile __le16 TDIdx[4]; /* 0x54 */
+ volatile __le16 tx_pause_timer; /* 0x5C */
+ volatile __le16 RBRDU; /* 0x5E */
- volatile u32 FIFOTest0; /* 0x60 */
- volatile u32 FIFOTest1; /* 0x64 */
+ volatile __le32 FIFOTest0; /* 0x60 */
+ volatile __le32 FIFOTest1; /* 0x64 */
volatile u8 CAMADDR; /* 0x68 */
volatile u8 CAMCR; /* 0x69 */
volatile u8 PHYSR1;
volatile u8 MIICR;
volatile u8 MIIADR;
- volatile u16 MIIDATA;
+ volatile __le16 MIIDATA;
- volatile u16 SoftTimer0; /* 0x74 */
- volatile u16 SoftTimer1;
+ volatile __le16 SoftTimer0; /* 0x74 */
+ volatile __le16 SoftTimer1;
volatile u8 CFGA; /* 0x78 */
volatile u8 CFGB;
volatile u8 CFGC;
volatile u8 CFGD;
- volatile u16 DCFG; /* 0x7C */
- volatile u16 MCFG;
+ volatile __le16 DCFG; /* 0x7C */
+ volatile __le16 MCFG;
volatile u8 TBIST; /* 0x80 */
volatile u8 RBIST;
volatile u8 rev_id;
volatile u8 PORSTS;
- volatile u32 MIBData; /* 0x88 */
+ volatile __le32 MIBData; /* 0x88 */
- volatile u16 EEWrData;
+ volatile __le16 EEWrData;
volatile u8 reserved_8E;
volatile u8 BPMDWr;
volatile u8 EECHKSUM; /* 0x92 */
volatile u8 EECSR;
- volatile u16 EERdData; /* 0x94 */
+ volatile __le16 EERdData; /* 0x94 */
volatile u8 EADDR;
volatile u8 EMBCMD;
volatile u8 DEBUG;
volatile u8 CHIPGCR;
- volatile u16 WOLCRSet; /* 0xA0 */
+ volatile __le16 WOLCRSet; /* 0xA0 */
volatile u8 PWCFGSet;
volatile u8 WOLCFGSet;
- volatile u16 WOLCRClr; /* 0xA4 */
+ volatile __le16 WOLCRClr; /* 0xA4 */
volatile u8 PWCFGCLR;
volatile u8 WOLCFGClr;
- volatile u16 WOLSRSet; /* 0xA8 */
- volatile u16 reserved_AA;
+ volatile __le16 WOLSRSet; /* 0xA8 */
+ volatile __le16 reserved_AA;
- volatile u16 WOLSRClr; /* 0xAC */
- volatile u16 reserved_AE;
+ volatile __le16 WOLSRClr; /* 0xAC */
+ volatile __le16 reserved_AE;
- volatile u16 PatternCRC[8]; /* 0xB0 */
- volatile u32 ByteMask[4][4]; /* 0xC0 */
+ volatile __le16 PatternCRC[8]; /* 0xB0 */
+ volatile __le32 ByteMask[4][4]; /* 0xC0 */
} __attribute__ ((__packed__));
struct arp_packet {
u8 dest_mac[ETH_ALEN];
u8 src_mac[ETH_ALEN];
- u16 type;
- u16 ar_hrd;
- u16 ar_pro;
+ __be16 type;
+ __be16 ar_hrd;
+ __be16 ar_pro;
u8 ar_hln;
u8 ar_pln;
- u16 ar_op;
+ __be16 ar_op;
u8 ar_sha[ETH_ALEN];
u8 ar_sip[4];
u8 ar_tha[ETH_ALEN];
struct _magic_packet {
u8 dest_mac[6];
u8 src_mac[6];
- u16 type;
+ __be16 type;
u8 MAC[16][6];
u8 password[6];
} __attribute__ ((__packed__));
#include <linux/virtio_net.h>
#include <linux/scatterlist.h>
+static int napi_weight = 128;
+module_param(napi_weight, int, 0444);
+
+static int csum = 1, gso = 1;
+module_param(csum, bool, 0444);
+module_param(gso, bool, 0444);
+
/* FIXME: MTU in config. */
#define MAX_PACKET_LEN (ETH_HLEN+ETH_DATA_LEN)
sg_init_one(sg, skb_vnet_hdr(skb), sizeof(struct virtio_net_hdr));
}
-static bool skb_xmit_done(struct virtqueue *rvq)
+static void skb_xmit_done(struct virtqueue *svq)
{
- struct virtnet_info *vi = rvq->vdev->priv;
+ struct virtnet_info *vi = svq->vdev->priv;
- /* In case we were waiting for output buffers. */
+ /* Suppress further interrupts. */
+ svq->vq_ops->disable_cb(svq);
+ /* We were waiting for more output buffers. */
netif_wake_queue(vi->dev);
- return true;
}
static void receive_skb(struct net_device *dev, struct sk_buff *skb,
if (hdr->flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) {
pr_debug("Needs csum!\n");
- skb->ip_summed = CHECKSUM_PARTIAL;
- skb->csum_start = hdr->csum_start;
- skb->csum_offset = hdr->csum_offset;
- if (skb->csum_start > skb->len - 2
- || skb->csum_offset > skb->len - 2) {
- if (net_ratelimit())
- printk(KERN_WARNING "%s: csum=%u/%u len=%u\n",
- dev->name, skb->csum_start,
- skb->csum_offset, skb->len);
+ if (!skb_partial_csum_set(skb,hdr->csum_start,hdr->csum_offset))
goto frame_err;
- }
}
if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) {
pr_debug("GSO!\n");
- switch (hdr->gso_type) {
+ switch (hdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN) {
case VIRTIO_NET_HDR_GSO_TCPV4:
skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
break;
- case VIRTIO_NET_HDR_GSO_TCPV4_ECN:
- skb_shinfo(skb)->gso_type = SKB_GSO_TCP_ECN;
- break;
case VIRTIO_NET_HDR_GSO_UDP:
skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
break;
goto frame_err;
}
+ if (hdr->gso_type & VIRTIO_NET_HDR_GSO_ECN)
+ skb_shinfo(skb)->gso_type |= SKB_GSO_TCP_ECN;
+
skb_shinfo(skb)->gso_size = hdr->gso_size;
if (skb_shinfo(skb)->gso_size == 0) {
if (net_ratelimit())
vi->rvq->vq_ops->kick(vi->rvq);
}
-static bool skb_recv_done(struct virtqueue *rvq)
+static void skb_recv_done(struct virtqueue *rvq)
{
struct virtnet_info *vi = rvq->vdev->priv;
- netif_rx_schedule(vi->dev, &vi->napi);
- /* Suppress further interrupts. */
- return false;
+ /* Schedule NAPI, Suppress further interrupts if successful. */
+ if (netif_rx_schedule_prep(vi->dev, &vi->napi)) {
+ rvq->vq_ops->disable_cb(rvq);
+ __netif_rx_schedule(vi->dev, &vi->napi);
+ }
}
static int virtnet_poll(struct napi_struct *napi, int budget)
/* Out of packets? */
if (received < budget) {
netif_rx_complete(vi->dev, napi);
- if (unlikely(!vi->rvq->vq_ops->restart(vi->rvq))
+ if (unlikely(!vi->rvq->vq_ops->enable_cb(vi->rvq))
&& netif_rx_reschedule(vi->dev, napi))
goto again;
}
pr_debug("%s: xmit %p %s\n", dev->name, skb, print_mac(mac, dest));
- free_old_xmit_skbs(vi);
-
/* Encode metadata header at front. */
hdr = skb_vnet_hdr(skb);
if (skb->ip_summed == CHECKSUM_PARTIAL) {
}
if (skb_is_gso(skb)) {
+ hdr->hdr_len = skb_transport_header(skb) - skb->data;
hdr->gso_size = skb_shinfo(skb)->gso_size;
- if (skb_shinfo(skb)->gso_type & SKB_GSO_TCP_ECN)
- hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4_ECN;
- else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4)
+ if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4)
hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4;
else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV6;
hdr->gso_type = VIRTIO_NET_HDR_GSO_UDP;
else
BUG();
+ if (skb_shinfo(skb)->gso_type & SKB_GSO_TCP_ECN)
+ hdr->gso_type |= VIRTIO_NET_HDR_GSO_ECN;
} else {
hdr->gso_type = VIRTIO_NET_HDR_GSO_NONE;
- hdr->gso_size = 0;
+ hdr->gso_size = hdr->hdr_len = 0;
}
vnet_hdr_to_sg(sg, skb);
num = skb_to_sgvec(skb, sg+1, 0, skb->len) + 1;
__skb_queue_head(&vi->send, skb);
+
+again:
+ /* Free up any pending old buffers before queueing new ones. */
+ free_old_xmit_skbs(vi);
err = vi->svq->vq_ops->add_buf(vi->svq, sg, num, 0, skb);
if (err) {
pr_debug("%s: virtio not prepared to send\n", dev->name);
- skb_unlink(skb, &vi->send);
netif_stop_queue(dev);
+
+ /* Activate callback for using skbs: if this fails it
+ * means some were used in the meantime. */
+ if (unlikely(!vi->svq->vq_ops->enable_cb(vi->svq))) {
+ printk("Unlikely: restart svq failed\n");
+ netif_start_queue(dev);
+ goto again;
+ }
+ __skb_unlink(skb, &vi->send);
+
return NETDEV_TX_BUSY;
}
vi->svq->vq_ops->kick(vi->svq);
{
struct virtnet_info *vi = netdev_priv(dev);
- try_fill_recv(vi);
+ napi_enable(&vi->napi);
- /* If we didn't even get one input buffer, we're useless. */
- if (vi->num == 0)
- return -ENOMEM;
+ /* If all buffers were filled by other side before we napi_enabled, we
+ * won't get another interrupt, so process any outstanding packets
+ * now. virtnet_poll wants re-enable the queue, so we disable here. */
+ vi->rvq->vq_ops->disable_cb(vi->rvq);
+ netif_rx_schedule(vi->dev, &vi->napi);
- napi_enable(&vi->napi);
return 0;
}
static int virtnet_close(struct net_device *dev)
{
struct virtnet_info *vi = netdev_priv(dev);
- struct sk_buff *skb;
napi_disable(&vi->napi);
- /* networking core has neutered skb_xmit_done/skb_recv_done, so don't
- * worry about races vs. get(). */
- vi->rvq->vq_ops->shutdown(vi->rvq);
- while ((skb = __skb_dequeue(&vi->recv)) != NULL) {
- kfree_skb(skb);
- vi->num--;
- }
- vi->svq->vq_ops->shutdown(vi->svq);
- while ((skb = __skb_dequeue(&vi->send)) != NULL)
- kfree_skb(skb);
-
- BUG_ON(vi->num != 0);
return 0;
}
static int virtnet_probe(struct virtio_device *vdev)
{
int err;
- unsigned int len;
struct net_device *dev;
struct virtnet_info *vi;
- void *token;
/* Allocate ourselves a network device with room for our info */
dev = alloc_etherdev(sizeof(struct virtnet_info));
return -ENOMEM;
/* Set up network device as normal. */
- ether_setup(dev);
dev->open = virtnet_open;
dev->stop = virtnet_close;
dev->hard_start_xmit = start_xmit;
SET_NETDEV_DEV(dev, &vdev->dev);
/* Do we support "hardware" checksums? */
- token = vdev->config->find(vdev, VIRTIO_CONFIG_NET_F, &len);
- if (virtio_use_bit(vdev, token, len, VIRTIO_NET_F_NO_CSUM)) {
+ if (csum && vdev->config->feature(vdev, VIRTIO_NET_F_CSUM)) {
/* This opens up the world of extra features. */
dev->features |= NETIF_F_HW_CSUM|NETIF_F_SG|NETIF_F_FRAGLIST;
- if (virtio_use_bit(vdev, token, len, VIRTIO_NET_F_TSO4))
- dev->features |= NETIF_F_TSO;
- if (virtio_use_bit(vdev, token, len, VIRTIO_NET_F_UFO))
- dev->features |= NETIF_F_UFO;
- if (virtio_use_bit(vdev, token, len, VIRTIO_NET_F_TSO4_ECN))
- dev->features |= NETIF_F_TSO_ECN;
- if (virtio_use_bit(vdev, token, len, VIRTIO_NET_F_TSO6))
- dev->features |= NETIF_F_TSO6;
+ if (gso && vdev->config->feature(vdev, VIRTIO_NET_F_GSO)) {
+ dev->features |= NETIF_F_TSO | NETIF_F_UFO
+ | NETIF_F_TSO_ECN | NETIF_F_TSO6;
+ }
}
/* Configuration may specify what MAC to use. Otherwise random. */
- token = vdev->config->find(vdev, VIRTIO_CONFIG_NET_MAC_F, &len);
- if (token) {
- dev->addr_len = len;
- vdev->config->get(vdev, token, dev->dev_addr, len);
+ if (vdev->config->feature(vdev, VIRTIO_NET_F_MAC)) {
+ vdev->config->get(vdev,
+ offsetof(struct virtio_net_config, mac),
+ dev->dev_addr, dev->addr_len);
} else
random_ether_addr(dev->dev_addr);
/* Set up our device-specific information */
vi = netdev_priv(dev);
- netif_napi_add(dev, &vi->napi, virtnet_poll, 16);
+ netif_napi_add(dev, &vi->napi, virtnet_poll, napi_weight);
vi->dev = dev;
vi->vdev = vdev;
/* We expect two virtqueues, receive then send. */
- vi->rvq = vdev->config->find_vq(vdev, skb_recv_done);
+ vi->rvq = vdev->config->find_vq(vdev, 0, skb_recv_done);
if (IS_ERR(vi->rvq)) {
err = PTR_ERR(vi->rvq);
goto free;
}
- vi->svq = vdev->config->find_vq(vdev, skb_xmit_done);
+ vi->svq = vdev->config->find_vq(vdev, 1, skb_xmit_done);
if (IS_ERR(vi->svq)) {
err = PTR_ERR(vi->svq);
goto free_recv;
pr_debug("virtio_net: registering device failed\n");
goto free_send;
}
+
+ /* Last of all, set up some receive buffers. */
+ try_fill_recv(vi);
+
+ /* If we didn't even get one input buffer, we're useless. */
+ if (vi->num == 0) {
+ err = -ENOMEM;
+ goto unregister;
+ }
+
pr_debug("virtnet: registered device %s\n", dev->name);
vdev->priv = vi;
return 0;
+unregister:
+ unregister_netdev(dev);
free_send:
vdev->config->del_vq(vi->svq);
free_recv:
static void virtnet_remove(struct virtio_device *vdev)
{
struct virtnet_info *vi = vdev->priv;
+ struct sk_buff *skb;
+
+ /* Stop all the virtqueues. */
+ vdev->config->reset(vdev);
+
+ /* Free our skbs in send and recv queues, if any. */
+ while ((skb = __skb_dequeue(&vi->recv)) != NULL) {
+ kfree_skb(skb);
+ vi->num--;
+ }
+ while ((skb = __skb_dequeue(&vi->send)) != NULL)
+ kfree_skb(skb);
+
+ BUG_ON(vi->num != 0);
vdev->config->del_vq(vi->svq);
vdev->config->del_vq(vi->rvq);
void __iomem *pt_boot_cmd = addr + CMD_OFFSET;
u32 i;
- /* boot buffer lenght */
+ /* boot buffer length */
writew(CFM_LOAD_BUFSZ, pt_boot_cmd + sizeof(u16));
writew(GEN_DEFPAR, pt_boot_cmd);
void __iomem *pt_boot_cmd = addr + CMD_OFFSET;
u32 i;
- /* boot buffer lenght */
+ /* boot buffer length */
writew(CFM_LOAD_BUFSZ, pt_boot_cmd + sizeof(u16));
writew(GEN_DEFPAR, pt_boot_cmd);
#define ath5k_pci_resume NULL
#endif /* CONFIG_PM */
-static struct pci_driver ath5k_pci_drv_id = {
+static struct pci_driver ath5k_pci_driver = {
.name = "ath5k_pci",
.id_table = ath5k_pci_id_table,
.probe = ath5k_pci_probe,
ath5k_debug_init();
- ret = pci_register_driver(&ath5k_pci_drv_id);
+ ret = pci_register_driver(&ath5k_pci_driver);
if (ret) {
printk(KERN_ERR "ath5k_pci: can't register pci driver\n");
return ret;
static void __exit
exit_ath5k_pci(void)
{
- pci_unregister_driver(&ath5k_pci_drv_id);
+ pci_unregister_driver(&ath5k_pci_driver);
ath5k_debug_finish();
}
priv->last_statistics_time = jiffies;
}
-void iwl3945_add_radiotap(struct iwl3945_priv *priv, struct sk_buff *skb,
- struct iwl3945_rx_frame_hdr *rx_hdr,
- struct ieee80211_rx_status *stats)
+static void iwl3945_add_radiotap(struct iwl3945_priv *priv,
+ struct sk_buff *skb,
+ struct iwl3945_rx_frame_hdr *rx_hdr,
+ struct ieee80211_rx_status *stats)
{
/* First cache any information we need before we overwrite
* the information provided in the skb from the hardware */
struct ieee80211_ht_info *sta_ht_inf)
{
__le32 sta_flags;
+ u8 mimo_ps_mode;
if (!sta_ht_inf || !sta_ht_inf->ht_supported)
goto done;
+ mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2;
+
sta_flags = priv->stations[index].sta.station_flags;
- if (((sta_ht_inf->cap & IEEE80211_HT_CAP_MIMO_PS >> 2))
- == IWL_MIMO_PS_DYNAMIC)
+ sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
+
+ switch (mimo_ps_mode) {
+ case WLAN_HT_CAP_MIMO_PS_STATIC:
+ sta_flags |= STA_FLG_MIMO_DIS_MSK;
+ break;
+ case WLAN_HT_CAP_MIMO_PS_DYNAMIC:
sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
- else
- sta_flags &= ~STA_FLG_RTS_MIMO_PROT_MSK;
+ break;
+ case WLAN_HT_CAP_MIMO_PS_DISABLED:
+ break;
+ default:
+ IWL_WARNING("Invalid MIMO PS mode %d", mimo_ps_mode);
+ break;
+ }
sta_flags |= cpu_to_le32(
(u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
if (iwl4965_is_fat_tx_allowed(priv, sta_ht_inf))
sta_flags |= STA_FLG_FAT_EN_MSK;
else
- sta_flags &= (~STA_FLG_FAT_EN_MSK);
+ sta_flags &= ~STA_FLG_FAT_EN_MSK;
priv->stations[index].sta.station_flags = sta_flags;
done:
#define QOS_CONTROL_LEN 2
-#define IEEE80211_STYPE_BACK_REQ 0x0080
-#define IEEE80211_STYPE_BACK 0x0090
-
static inline int ieee80211_is_management(u16 fc)
{
return -ENODEV;
}
+ if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
+ IWL_ERROR("ucode not available for device bringup\n");
+ return -EIO;
+ }
+
/* If platform's RF_KILL switch is NOT set to KILL */
if (iwl3945_read32(priv, CSR_GP_CNTRL) &
CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
}
}
- if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
- IWL_ERROR("ucode not available for device bringup\n");
- return -EIO;
- }
-
iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF);
rc = iwl3945_hw_nic_init(priv);
return -ENODEV;
}
+ if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
+ IWL_ERROR("ucode not available for device bringup\n");
+ return -EIO;
+ }
+
/* If platform's RF_KILL switch is NOT set to KILL */
if (iwl4965_read32(priv, CSR_GP_CNTRL) &
CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
}
}
- if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
- IWL_ERROR("ucode not available for device bringup\n");
- return -EIO;
- }
-
iwl4965_write32(priv, CSR_INT, 0xFFFFFFFF);
rc = iwl4965_hw_nic_init(priv);
* Called via lbs_prepare_and_send_command(priv, CMD_802_11_SCAN, ...)
* from cmd.c
*
- * Sends a fixed lenght data part (specifying the BSS type and BSSID filters)
+ * Sends a fixed length data part (specifying the BSS type and BSSID filters)
* as well as a variable number/length of TLVs to the firmware.
*
* @param priv A pointer to struct lbs_private structure
resource blocks. */
/* FIXME: A lot of this stuff will eventually be useful after
- initializaton, for intelligently probing Ethernet and video chips,
+ initialization, for intelligently probing Ethernet and video chips,
among other things. The rest of it should go in the /proc code.
For now, we just use it to give verbose boot logs. */
if (pages_needed <= 8) {
/*
* LAN traffic will not thrash the TLB IFF the same NIC
- * uses 8 adjacent pages to map seperate payload data.
+ * uses 8 adjacent pages to map separate payload data.
* ie the same byte in the resource bit map.
*/
#if 0
}
/**
- * ccio_init - ccio initalization procedure.
+ * ccio_init - ccio initialization procedure.
*
* Register this driver.
*/
};
/**
- * hppb_init - HP-PB bus initalization procedure.
+ * hppb_init - HP-PB bus initialization procedure.
*
* Register this driver.
*/
idlens[1] = idlens[0]+2;
if (belen != lelen) {
int off = 2;
- /* Don't try lenghts of 0x100 and 0x200 as 1 and 2 */
+ /* Don't try lengths of 0x100 and 0x200 as 1 and 2 */
if (idlens[0] <= 2)
off = 0;
idlens[off] = max(belen, lelen);
# Build the PCI Hotplug drivers if we were asked to
obj-$(CONFIG_HOTPLUG_PCI) += hotplug/
+ifdef CONFIG_HOTPLUG_PCI
+obj-y += hotplug-pci.o
+endif
# Build the PCI MSI interrupt support
obj-$(CONFIG_PCI_MSI) += msi.o
--- /dev/null
+/* Core PCI functionality used only by PCI hotplug */
+
+#include <linux/pci.h>
+#include "pci.h"
+
+
+unsigned int pci_do_scan_bus(struct pci_bus *bus)
+{
+ unsigned int max;
+
+ max = pci_scan_child_bus(bus);
+
+ /*
+ * Make the discovered devices available.
+ */
+ pci_bus_add_devices(bus);
+
+ return max;
+}
+EXPORT_SYMBOL(pci_do_scan_bus);
#include <linux/topology.h>
#include <linux/mm.h>
#include <linux/capability.h>
-#include <linux/aspm.h>
#include "pci.h"
static int sysfs_initialized; /* = 0 */
if (pcibios_add_platform_entries(pdev))
goto err_rom_file;
- pcie_aspm_create_sysfs_dev_files(pdev);
-
return 0;
err_rom_file:
if (!sysfs_initialized)
return;
- pcie_aspm_remove_sysfs_dev_files(pdev);
-
if (pdev->cfg_size < 4096)
sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr);
else
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/log2.h>
-#include <linux/aspm.h>
#include <asm/dma.h> /* isa_dma_bridge_buggy */
#include "pci.h"
if (need_restore)
pci_restore_bars(dev);
- if (dev->bus->self)
- pcie_aspm_pm_state_change(dev->bus->self);
-
return 0;
}
When in doubt, say N.
source "drivers/pci/pcie/aer/Kconfig"
-
-#
-# PCI Express ASPM
-#
-config PCIEASPM
- bool "PCI Express ASPM support(Experimental)"
- depends on PCI && EXPERIMENTAL
- default y
- help
- This enables PCI Express ASPM (Active State Power Management) and
- Clock Power Management. ASPM supports state L0/L0s/L1.
-
- When in doubt, say N.
-config PCIEASPM_DEBUG
- bool "Debug PCI Express ASPM"
- depends on PCIEASPM
- default n
- help
- This enables PCI Express ASPM debug support. It will add per-device
- interface to control ASPM.
# Makefile for PCI-Express PORT Driver
#
-# Build PCI Express ASPM if needed
-obj-$(CONFIG_PCIEASPM) += aspm.o
-
pcieportdrv-y := portdrv_core.o portdrv_pci.o portdrv_bus.o
obj-$(CONFIG_PCIEPORTBUS) += pcieportdrv.o
+++ /dev/null
-/*
- * File: drivers/pci/pcie/aspm.c
- * Enabling PCIE link L0s/L1 state and Clock Power Management
- *
- * Copyright (C) 2007 Intel
- * Copyright (C) Zhang Yanmin (yanmin.zhang@intel.com)
- * Copyright (C) Shaohua Li (shaohua.li@intel.com)
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/pci.h>
-#include <linux/pci_regs.h>
-#include <linux/errno.h>
-#include <linux/pm.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/aspm.h>
-#include <acpi/acpi_bus.h>
-#include <linux/pci-acpi.h>
-#include "../pci.h"
-
-#ifdef MODULE_PARAM_PREFIX
-#undef MODULE_PARAM_PREFIX
-#endif
-#define MODULE_PARAM_PREFIX "pcie_aspm."
-
-struct endpoint_state {
- unsigned int l0s_acceptable_latency;
- unsigned int l1_acceptable_latency;
-};
-
-struct pcie_link_state {
- struct list_head sibiling;
- struct pci_dev *pdev;
-
- /* ASPM state */
- unsigned int support_state;
- unsigned int enabled_state;
- unsigned int bios_aspm_state;
- /* upstream component */
- unsigned int l0s_upper_latency;
- unsigned int l1_upper_latency;
- /* downstream component */
- unsigned int l0s_down_latency;
- unsigned int l1_down_latency;
- /* Clock PM state*/
- unsigned int clk_pm_capable;
- unsigned int clk_pm_enabled;
- unsigned int bios_clk_state;
-
- /*
- * A pcie downstream port only has one slot under it, so at most there
- * are 8 functions
- */
- struct endpoint_state endpoints[8];
-};
-
-static int aspm_disabled;
-static DEFINE_MUTEX(aspm_lock);
-static LIST_HEAD(link_list);
-
-#define POLICY_DEFAULT 0 /* BIOS default setting */
-#define POLICY_PERFORMANCE 1 /* high performance */
-#define POLICY_POWERSAVE 2 /* high power saving */
-static int aspm_policy;
-static const char *policy_str[] = {
- [POLICY_DEFAULT] = "default",
- [POLICY_PERFORMANCE] = "performance",
- [POLICY_POWERSAVE] = "powersave"
-};
-
-static int policy_to_aspm_state(struct pci_dev *pdev)
-{
- struct pcie_link_state *link_state = pdev->link_state;
-
- switch (aspm_policy) {
- case POLICY_PERFORMANCE:
- /* Disable ASPM and Clock PM */
- return 0;
- case POLICY_POWERSAVE:
- /* Enable ASPM L0s/L1 */
- return PCIE_LINK_STATE_L0S|PCIE_LINK_STATE_L1;
- case POLICY_DEFAULT:
- return link_state->bios_aspm_state;
- }
- return 0;
-}
-
-static int policy_to_clkpm_state(struct pci_dev *pdev)
-{
- struct pcie_link_state *link_state = pdev->link_state;
-
- switch (aspm_policy) {
- case POLICY_PERFORMANCE:
- /* Disable ASPM and Clock PM */
- return 0;
- case POLICY_POWERSAVE:
- /* Disable Clock PM */
- return 1;
- case POLICY_DEFAULT:
- return link_state->bios_clk_state;
- }
- return 0;
-}
-
-static void pcie_set_clock_pm(struct pci_dev *pdev, int enable)
-{
- struct pci_dev *child_dev;
- int pos;
- u16 reg16;
- struct pcie_link_state *link_state = pdev->link_state;
-
- list_for_each_entry(child_dev, &pdev->subordinate->devices, bus_list) {
- pos = pci_find_capability(child_dev, PCI_CAP_ID_EXP);
- if (!pos)
- return;
- pci_read_config_word(child_dev, pos + PCI_EXP_LNKCTL, ®16);
- if (enable)
- reg16 |= PCI_EXP_LNKCTL_CLKREQ_EN;
- else
- reg16 &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
- pci_write_config_word(child_dev, pos + PCI_EXP_LNKCTL, reg16);
- }
- link_state->clk_pm_enabled = !!enable;
-}
-
-static void pcie_check_clock_pm(struct pci_dev *pdev)
-{
- int pos;
- u32 reg32;
- u16 reg16;
- int capable = 1, enabled = 1;
- struct pci_dev *child_dev;
- struct pcie_link_state *link_state = pdev->link_state;
-
- /* All functions should have the same cap and state, take the worst */
- list_for_each_entry(child_dev, &pdev->subordinate->devices, bus_list) {
- pos = pci_find_capability(child_dev, PCI_CAP_ID_EXP);
- if (!pos)
- return;
- pci_read_config_dword(child_dev, pos + PCI_EXP_LNKCAP, ®32);
- if (!(reg32 & PCI_EXP_LNKCAP_CLKPM)) {
- capable = 0;
- enabled = 0;
- break;
- }
- pci_read_config_word(child_dev, pos + PCI_EXP_LNKCTL, ®16);
- if (!(reg16 & PCI_EXP_LNKCTL_CLKREQ_EN))
- enabled = 0;
- }
- link_state->clk_pm_capable = capable;
- link_state->clk_pm_enabled = enabled;
- link_state->bios_clk_state = enabled;
- pcie_set_clock_pm(pdev, policy_to_clkpm_state(pdev));
-}
-
-/*
- * pcie_aspm_configure_common_clock: check if the 2 ends of a link
- * could use common clock. If they are, configure them to use the
- * common clock. That will reduce the ASPM state exit latency.
- */
-static void pcie_aspm_configure_common_clock(struct pci_dev *pdev)
-{
- int pos, child_pos;
- u16 reg16 = 0;
- struct pci_dev *child_dev;
- int same_clock = 1;
-
- /*
- * all functions of a slot should have the same Slot Clock
- * Configuration, so just check one function
- * */
- child_dev = list_entry(pdev->subordinate->devices.next, struct pci_dev,
- bus_list);
- BUG_ON(!child_dev->is_pcie);
-
- /* Check downstream component if bit Slot Clock Configuration is 1 */
- child_pos = pci_find_capability(child_dev, PCI_CAP_ID_EXP);
- pci_read_config_word(child_dev, child_pos + PCI_EXP_LNKSTA, ®16);
- if (!(reg16 & PCI_EXP_LNKSTA_SLC))
- same_clock = 0;
-
- /* Check upstream component if bit Slot Clock Configuration is 1 */
- pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
- pci_read_config_word(pdev, pos + PCI_EXP_LNKSTA, ®16);
- if (!(reg16 & PCI_EXP_LNKSTA_SLC))
- same_clock = 0;
-
- /* Configure downstream component, all functions */
- list_for_each_entry(child_dev, &pdev->subordinate->devices, bus_list) {
- child_pos = pci_find_capability(child_dev, PCI_CAP_ID_EXP);
- pci_read_config_word(child_dev, child_pos + PCI_EXP_LNKCTL,
- ®16);
- if (same_clock)
- reg16 |= PCI_EXP_LNKCTL_CCC;
- else
- reg16 &= ~PCI_EXP_LNKCTL_CCC;
- pci_write_config_word(child_dev, child_pos + PCI_EXP_LNKCTL,
- reg16);
- }
-
- /* Configure upstream component */
- pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, ®16);
- if (same_clock)
- reg16 |= PCI_EXP_LNKCTL_CCC;
- else
- reg16 &= ~PCI_EXP_LNKCTL_CCC;
- pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, reg16);
-
- /* retrain link */
- reg16 |= PCI_EXP_LNKCTL_RL;
- pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, reg16);
-
- /* Wait for link training end */
- while (1) {
- pci_read_config_word(pdev, pos + PCI_EXP_LNKSTA, ®16);
- if (!(reg16 & PCI_EXP_LNKSTA_LT))
- break;
- cpu_relax();
- }
-}
-
-/*
- * calc_L0S_latency: Convert L0s latency encoding to ns
- */
-static unsigned int calc_L0S_latency(unsigned int latency_encoding, int ac)
-{
- unsigned int ns = 64;
-
- if (latency_encoding == 0x7) {
- if (ac)
- ns = -1U;
- else
- ns = 5*1000; /* > 4us */
- } else
- ns *= (1 << latency_encoding);
- return ns;
-}
-
-/*
- * calc_L1_latency: Convert L1 latency encoding to ns
- */
-static unsigned int calc_L1_latency(unsigned int latency_encoding, int ac)
-{
- unsigned int ns = 1000;
-
- if (latency_encoding == 0x7) {
- if (ac)
- ns = -1U;
- else
- ns = 65*1000; /* > 64us */
- } else
- ns *= (1 << latency_encoding);
- return ns;
-}
-
-static void pcie_aspm_get_cap_device(struct pci_dev *pdev, u32 *state,
- unsigned int *l0s, unsigned int *l1, unsigned int *enabled)
-{
- int pos;
- u16 reg16;
- u32 reg32;
- unsigned int latency;
-
- pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
- pci_read_config_dword(pdev, pos + PCI_EXP_LNKCAP, ®32);
- *state = (reg32 & PCI_EXP_LNKCAP_ASPMS) >> 10;
- if (*state != PCIE_LINK_STATE_L0S &&
- *state != (PCIE_LINK_STATE_L1|PCIE_LINK_STATE_L0S))
- * state = 0;
- if (*state == 0)
- return;
-
- latency = (reg32 & PCI_EXP_LNKCAP_L0SEL) >> 12;
- *l0s = calc_L0S_latency(latency, 0);
- if (*state & PCIE_LINK_STATE_L1) {
- latency = (reg32 & PCI_EXP_LNKCAP_L1EL) >> 15;
- *l1 = calc_L1_latency(latency, 0);
- }
- pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, ®16);
- *enabled = reg16 & (PCIE_LINK_STATE_L0S|PCIE_LINK_STATE_L1);
-}
-
-static void pcie_aspm_cap_init(struct pci_dev *pdev)
-{
- struct pci_dev *child_dev;
- u32 state, tmp;
- struct pcie_link_state *link_state = pdev->link_state;
-
- /* upstream component states */
- pcie_aspm_get_cap_device(pdev, &link_state->support_state,
- &link_state->l0s_upper_latency,
- &link_state->l1_upper_latency,
- &link_state->enabled_state);
- /* downstream component states, all functions have the same setting */
- child_dev = list_entry(pdev->subordinate->devices.next, struct pci_dev,
- bus_list);
- pcie_aspm_get_cap_device(child_dev, &state,
- &link_state->l0s_down_latency,
- &link_state->l1_down_latency,
- &tmp);
- link_state->support_state &= state;
- if (!link_state->support_state)
- return;
- link_state->enabled_state &= link_state->support_state;
- link_state->bios_aspm_state = link_state->enabled_state;
-
- /* ENDPOINT states*/
- list_for_each_entry(child_dev, &pdev->subordinate->devices, bus_list) {
- int pos;
- u32 reg32;
- unsigned int latency;
- struct endpoint_state *ep_state =
- &link_state->endpoints[PCI_FUNC(child_dev->devfn)];
-
- if (child_dev->pcie_type != PCI_EXP_TYPE_ENDPOINT &&
- child_dev->pcie_type != PCI_EXP_TYPE_LEG_END)
- continue;
-
- pos = pci_find_capability(child_dev, PCI_CAP_ID_EXP);
- pci_read_config_dword(child_dev, pos + PCI_EXP_DEVCAP, ®32);
- latency = (reg32 & PCI_EXP_DEVCAP_L0S) >> 6;
- latency = calc_L0S_latency(latency, 1);
- ep_state->l0s_acceptable_latency = latency;
- if (link_state->support_state & PCIE_LINK_STATE_L1) {
- latency = (reg32 & PCI_EXP_DEVCAP_L1) >> 9;
- latency = calc_L1_latency(latency, 1);
- ep_state->l1_acceptable_latency = latency;
- }
- }
-}
-
-static unsigned int __pcie_aspm_check_state_one(struct pci_dev *pdev,
- unsigned int state)
-{
- struct pci_dev *parent_dev, *tmp_dev;
- unsigned int latency, l1_latency = 0;
- struct pcie_link_state *link_state;
- struct endpoint_state *ep_state;
-
- parent_dev = pdev->bus->self;
- link_state = parent_dev->link_state;
- state &= link_state->support_state;
- if (state == 0)
- return 0;
- ep_state = &link_state->endpoints[PCI_FUNC(pdev->devfn)];
-
- /*
- * Check latency for endpoint device.
- * TBD: The latency from the endpoint to root complex vary per
- * switch's upstream link state above the device. Here we just do a
- * simple check which assumes all links above the device can be in L1
- * state, that is we just consider the worst case. If switch's upstream
- * link can't be put into L0S/L1, then our check is too strictly.
- */
- tmp_dev = pdev;
- while (state & (PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1)) {
- parent_dev = tmp_dev->bus->self;
- link_state = parent_dev->link_state;
- if (state & PCIE_LINK_STATE_L0S) {
- latency = max_t(unsigned int,
- link_state->l0s_upper_latency,
- link_state->l0s_down_latency);
- if (latency > ep_state->l0s_acceptable_latency)
- state &= ~PCIE_LINK_STATE_L0S;
- }
- if (state & PCIE_LINK_STATE_L1) {
- latency = max_t(unsigned int,
- link_state->l1_upper_latency,
- link_state->l1_down_latency);
- if (latency + l1_latency >
- ep_state->l1_acceptable_latency)
- state &= ~PCIE_LINK_STATE_L1;
- }
- if (!parent_dev->bus->self) /* parent_dev is a root port */
- break;
- else {
- /*
- * parent_dev is the downstream port of a switch, make
- * tmp_dev the upstream port of the switch
- */
- tmp_dev = parent_dev->bus->self;
- /*
- * every switch on the path to root complex need 1 more
- * microsecond for L1. Spec doesn't mention L0S.
- */
- if (state & PCIE_LINK_STATE_L1)
- l1_latency += 1000;
- }
- }
- return state;
-}
-
-static unsigned int pcie_aspm_check_state(struct pci_dev *pdev,
- unsigned int state)
-{
- struct pci_dev *child_dev;
-
- /* If no child, disable the link */
- if (list_empty(&pdev->subordinate->devices))
- return 0;
- list_for_each_entry(child_dev, &pdev->subordinate->devices, bus_list) {
- if (child_dev->pcie_type == PCI_EXP_TYPE_PCI_BRIDGE) {
- /*
- * If downstream component of a link is pci bridge, we
- * disable ASPM for now for the link
- * */
- state = 0;
- break;
- }
- if ((child_dev->pcie_type != PCI_EXP_TYPE_ENDPOINT &&
- child_dev->pcie_type != PCI_EXP_TYPE_LEG_END))
- continue;
- /* Device not in D0 doesn't need check latency */
- if (child_dev->current_state == PCI_D1 ||
- child_dev->current_state == PCI_D2 ||
- child_dev->current_state == PCI_D3hot ||
- child_dev->current_state == PCI_D3cold)
- continue;
- state = __pcie_aspm_check_state_one(child_dev, state);
- }
- return state;
-}
-
-static void __pcie_aspm_config_one_dev(struct pci_dev *pdev, unsigned int state)
-{
- u16 reg16;
- int pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
-
- pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, ®16);
- reg16 &= ~0x3;
- reg16 |= state;
- pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, reg16);
-}
-
-static void __pcie_aspm_config_link(struct pci_dev *pdev, unsigned int state)
-{
- struct pci_dev *child_dev;
- int valid = 1;
- struct pcie_link_state *link_state = pdev->link_state;
-
- /*
- * if the downstream component has pci bridge function, don't do ASPM
- * now
- */
- list_for_each_entry(child_dev, &pdev->subordinate->devices, bus_list) {
- if (child_dev->pcie_type == PCI_EXP_TYPE_PCI_BRIDGE) {
- valid = 0;
- break;
- }
- }
- if (!valid)
- return;
-
- /*
- * spec 2.0 suggests all functions should be configured the same
- * setting for ASPM. Enabling ASPM L1 should be done in upstream
- * component first and then downstream, and vice versa for disabling
- * ASPM L1. Spec doesn't mention L0S.
- */
- if (state & PCIE_LINK_STATE_L1)
- __pcie_aspm_config_one_dev(pdev, state);
-
- list_for_each_entry(child_dev, &pdev->subordinate->devices, bus_list)
- __pcie_aspm_config_one_dev(child_dev, state);
-
- if (!(state & PCIE_LINK_STATE_L1))
- __pcie_aspm_config_one_dev(pdev, state);
-
- link_state->enabled_state = state;
-}
-
-static void __pcie_aspm_configure_link_state(struct pci_dev *pdev,
- unsigned int state)
-{
- struct pcie_link_state *link_state = pdev->link_state;
-
- if (link_state->support_state == 0)
- return;
- state &= PCIE_LINK_STATE_L0S|PCIE_LINK_STATE_L1;
-
- /* state 0 means disabling aspm */
- state = pcie_aspm_check_state(pdev, state);
- if (link_state->enabled_state == state)
- return;
- __pcie_aspm_config_link(pdev, state);
-}
-
-/*
- * pcie_aspm_configure_link_state: enable/disable PCI express link state
- * @pdev: the root port or switch downstream port
- */
-static void pcie_aspm_configure_link_state(struct pci_dev *pdev,
- unsigned int state)
-{
- down_read(&pci_bus_sem);
- mutex_lock(&aspm_lock);
- __pcie_aspm_configure_link_state(pdev, state);
- mutex_unlock(&aspm_lock);
- up_read(&pci_bus_sem);
-}
-
-static void free_link_state(struct pci_dev *pdev)
-{
- kfree(pdev->link_state);
- pdev->link_state = NULL;
-}
-
-/*
- * pcie_aspm_init_link_state: Initiate PCI express link state.
- * It is called after the pcie and its children devices are scaned.
- * @pdev: the root port or switch downstream port
- */
-void pcie_aspm_init_link_state(struct pci_dev *pdev)
-{
- unsigned int state;
- struct pcie_link_state *link_state;
- int error = 0;
-
- if (aspm_disabled || !pdev->is_pcie || pdev->link_state)
- return;
- if (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
- pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)
- return;
- down_read(&pci_bus_sem);
- if (list_empty(&pdev->subordinate->devices))
- goto out;
-
- mutex_lock(&aspm_lock);
-
- link_state = kzalloc(sizeof(*link_state), GFP_KERNEL);
- if (!link_state)
- goto unlock_out;
- pdev->link_state = link_state;
-
- pcie_aspm_configure_common_clock(pdev);
-
- pcie_aspm_cap_init(pdev);
-
- /* config link state to avoid BIOS error */
- state = pcie_aspm_check_state(pdev, policy_to_aspm_state(pdev));
- __pcie_aspm_config_link(pdev, state);
-
- pcie_check_clock_pm(pdev);
-
- link_state->pdev = pdev;
- list_add(&link_state->sibiling, &link_list);
-
-unlock_out:
- if (error)
- free_link_state(pdev);
- mutex_unlock(&aspm_lock);
-out:
- up_read(&pci_bus_sem);
-}
-
-/* @pdev: the endpoint device */
-void pcie_aspm_exit_link_state(struct pci_dev *pdev)
-{
- struct pci_dev *parent = pdev->bus->self;
- struct pcie_link_state *link_state = parent->link_state;
-
- if (aspm_disabled || !pdev->is_pcie || !parent || !link_state)
- return;
- if (parent->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
- parent->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)
- return;
- down_read(&pci_bus_sem);
- mutex_lock(&aspm_lock);
-
- /*
- * All PCIe functions are in one slot, remove one function will remove
- * the the whole slot, so just wait
- */
- if (!list_empty(&parent->subordinate->devices))
- goto out;
-
- /* All functions are removed, so just disable ASPM for the link */
- __pcie_aspm_config_one_dev(parent, 0);
- list_del(&link_state->sibiling);
- /* Clock PM is for endpoint device */
-
- free_link_state(parent);
-out:
- mutex_unlock(&aspm_lock);
- up_read(&pci_bus_sem);
-}
-
-/* @pdev: the root port or switch downstream port */
-void pcie_aspm_pm_state_change(struct pci_dev *pdev)
-{
- struct pcie_link_state *link_state = pdev->link_state;
-
- if (aspm_disabled || !pdev->is_pcie || !pdev->link_state)
- return;
- if (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
- pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)
- return;
- /*
- * devices changed PM state, we should recheck if latency meets all
- * functions' requirement
- */
- pcie_aspm_configure_link_state(pdev, link_state->enabled_state);
-}
-
-/*
- * pci_disable_link_state - disable pci device's link state, so the link will
- * never enter specific states
- */
-void pci_disable_link_state(struct pci_dev *pdev, int state)
-{
- struct pci_dev *parent = pdev->bus->self;
- struct pcie_link_state *link_state;
-
- if (aspm_disabled || !pdev->is_pcie)
- return;
- if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT ||
- pdev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM)
- parent = pdev;
- if (!parent)
- return;
-
- down_read(&pci_bus_sem);
- mutex_lock(&aspm_lock);
- link_state = parent->link_state;
- link_state->support_state &=
- ~(state & (PCIE_LINK_STATE_L0S|PCIE_LINK_STATE_L1));
- if (state & PCIE_LINK_STATE_CLKPM)
- link_state->clk_pm_capable = 0;
-
- __pcie_aspm_configure_link_state(parent, link_state->enabled_state);
- if (!link_state->clk_pm_capable && link_state->clk_pm_enabled)
- pcie_set_clock_pm(parent, 0);
- mutex_unlock(&aspm_lock);
- up_read(&pci_bus_sem);
-}
-EXPORT_SYMBOL(pci_disable_link_state);
-
-static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp)
-{
- int i;
- struct pci_dev *pdev;
- struct pcie_link_state *link_state;
-
- for (i = 0; i < ARRAY_SIZE(policy_str); i++)
- if (!strncmp(val, policy_str[i], strlen(policy_str[i])))
- break;
- if (i >= ARRAY_SIZE(policy_str))
- return -EINVAL;
- if (i == aspm_policy)
- return 0;
-
- down_read(&pci_bus_sem);
- mutex_lock(&aspm_lock);
- aspm_policy = i;
- list_for_each_entry(link_state, &link_list, sibiling) {
- pdev = link_state->pdev;
- __pcie_aspm_configure_link_state(pdev,
- policy_to_aspm_state(pdev));
- if (link_state->clk_pm_capable &&
- link_state->clk_pm_enabled != policy_to_clkpm_state(pdev))
- pcie_set_clock_pm(pdev, policy_to_clkpm_state(pdev));
-
- }
- mutex_unlock(&aspm_lock);
- up_read(&pci_bus_sem);
- return 0;
-}
-
-static int pcie_aspm_get_policy(char *buffer, struct kernel_param *kp)
-{
- int i, cnt = 0;
- for (i = 0; i < ARRAY_SIZE(policy_str); i++)
- if (i == aspm_policy)
- cnt += sprintf(buffer + cnt, "[%s] ", policy_str[i]);
- else
- cnt += sprintf(buffer + cnt, "%s ", policy_str[i]);
- return cnt;
-}
-
-module_param_call(policy, pcie_aspm_set_policy, pcie_aspm_get_policy,
- NULL, 0644);
-
-#ifdef CONFIG_PCIEASPM_DEBUG
-static ssize_t link_state_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pci_device = to_pci_dev(dev);
- struct pcie_link_state *link_state = pci_device->link_state;
-
- return sprintf(buf, "%d\n", link_state->enabled_state);
-}
-
-static ssize_t link_state_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t n)
-{
- struct pci_dev *pci_device = to_pci_dev(dev);
- int state;
-
- if (n < 1)
- return -EINVAL;
- state = buf[0]-'0';
- if (state >= 0 && state <= 3) {
- /* setup link aspm state */
- pcie_aspm_configure_link_state(pci_device, state);
- return n;
- }
-
- return -EINVAL;
-}
-
-static ssize_t clk_ctl_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct pci_dev *pci_device = to_pci_dev(dev);
- struct pcie_link_state *link_state = pci_device->link_state;
-
- return sprintf(buf, "%d\n", link_state->clk_pm_enabled);
-}
-
-static ssize_t clk_ctl_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t n)
-{
- struct pci_dev *pci_device = to_pci_dev(dev);
- int state;
-
- if (n < 1)
- return -EINVAL;
- state = buf[0]-'0';
-
- down_read(&pci_bus_sem);
- mutex_lock(&aspm_lock);
- pcie_set_clock_pm(pci_device, !!state);
- mutex_unlock(&aspm_lock);
- up_read(&pci_bus_sem);
-
- return n;
-}
-
-static DEVICE_ATTR(link_state, 0644, link_state_show, link_state_store);
-static DEVICE_ATTR(clk_ctl, 0644, clk_ctl_show, clk_ctl_store);
-
-static char power_group[] = "power";
-void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev)
-{
- struct pcie_link_state *link_state = pdev->link_state;
-
- if (!pdev->is_pcie || (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
- pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
- return;
-
- if (link_state->support_state)
- sysfs_add_file_to_group(&pdev->dev.kobj,
- &dev_attr_link_state.attr, power_group);
- if (link_state->clk_pm_capable)
- sysfs_add_file_to_group(&pdev->dev.kobj,
- &dev_attr_clk_ctl.attr, power_group);
-}
-
-void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev)
-{
- struct pcie_link_state *link_state = pdev->link_state;
-
- if (!pdev->is_pcie || (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
- pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
- return;
-
- if (link_state->support_state)
- sysfs_remove_file_from_group(&pdev->dev.kobj,
- &dev_attr_link_state.attr, power_group);
- if (link_state->clk_pm_capable)
- sysfs_remove_file_from_group(&pdev->dev.kobj,
- &dev_attr_clk_ctl.attr, power_group);
-}
-#endif
-
-static int __init pcie_aspm_disable(char *str)
-{
- aspm_disabled = 1;
- return 1;
-}
-
-__setup("pcie_noaspm", pcie_aspm_disable);
-
-static int __init pcie_aspm_init(void)
-{
- if (aspm_disabled)
- return 0;
- pci_osc_support_set(OSC_ACTIVE_STATE_PWR_SUPPORT|
- OSC_CLOCK_PWR_CAPABILITY_SUPPORT);
- return 0;
-}
-
-fs_initcall(pcie_aspm_init);
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/cpumask.h>
-#include <linux/aspm.h>
#include "pci.h"
#define CARDBUS_LATENCY_TIMER 176 /* secondary latency timer */
return child;
}
-struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr)
+struct pci_bus *__ref pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr)
{
struct pci_bus *child;
up_write(&pci_bus_sem);
}
-struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn)
+struct pci_dev *__ref pci_scan_single_device(struct pci_bus *bus, int devfn)
{
struct pci_dev *dev;
break;
}
}
-
- if (bus->self)
- pcie_aspm_init_link_state(bus->self);
-
return nr;
}
return max;
}
-unsigned int __devinit pci_do_scan_bus(struct pci_bus *bus)
-{
- unsigned int max;
-
- max = pci_scan_child_bus(bus);
-
- /*
- * Make the discovered devices available.
- */
- pci_bus_add_devices(bus);
-
- return max;
-}
-
struct pci_bus * pci_create_bus(struct device *parent,
int bus, struct pci_ops *ops, void *sysdata)
{
#ifdef CONFIG_HOTPLUG
EXPORT_SYMBOL(pci_add_new_bus);
-EXPORT_SYMBOL(pci_do_scan_bus);
EXPORT_SYMBOL(pci_scan_slot);
EXPORT_SYMBOL(pci_scan_bridge);
EXPORT_SYMBOL_GPL(pci_scan_child_bus);
#include <linux/pci.h>
#include <linux/module.h>
-#include <linux/aspm.h>
#include "pci.h"
static void pci_free_resources(struct pci_dev *dev)
dev->global_list.next = dev->global_list.prev = NULL;
up_write(&pci_bus_sem);
}
-
- if (dev->bus->self)
- pcie_aspm_exit_link_state(dev);
}
static void pci_destroy_dev(struct pci_dev *dev)
}
}
-void pci_bus_size_bridges(struct pci_bus *bus)
+void __ref pci_bus_size_bridges(struct pci_bus *bus)
{
struct pci_dev *dev;
unsigned long mask, prefmask;
}
EXPORT_SYMBOL(pci_bus_size_bridges);
-void pci_bus_assign_resources(struct pci_bus *bus)
+void __ref pci_bus_assign_resources(struct pci_bus *bus)
{
struct pci_bus *b;
struct pci_dev *dev;
handled = 1;
irc = pcc_get(i, PCIRC);
irc >>=16;
- debug(2, "m32r-pcc:interrput: socket %d pcirc 0x%02x ", i, irc);
+ debug(2, "m32r-pcc:interrupt: socket %d pcirc 0x%02x ", i, irc);
if (!irc)
continue;
I tried to control the CxOE signal with SS_OUTPUT_ENA,
but the reset signal seems connected via the 541.
If the CxOE is left high are some signals tristated and
- no pullups are present -> the cards act wierd.
+ no pullups are present -> the cards act weird.
So right now the buffers are enabled if the power is on. */
if (state->Vcc || state->Vpp)
/* NCR53C9x.c: Defines and structures for the NCR53C9x generic driver.
*
- * Originaly esp.h: Defines and structures for the Sparc ESP
+ * Originally esp.h: Defines and structures for the Sparc ESP
* (Enhanced SCSI Processor) driver under Linux.
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
* Modified by Chris Faulhaber <jedgar@fxp.org>
* Added module command-line options
* 19-Jul-99
- * Modified by Adam Fritzler <mid@auk.cx>
+ * Modified by Adam Fritzler
* Added proper detection of the AHA-1640 (MCA version of AHA-1540)
*/
# Dependencies for generated files need to be listed explicitly
-$(obj)/aic7xxx_core.o: $(obj)/aic7xxx_seq.h
-$(obj)/aic7xxx_core.o: $(obj)/aic7xxx_reg.h
-$(obj)/aic79xx_core.o: $(obj)/aic79xx_seq.h
-$(obj)/aic79xx_core.o: $(obj)/aic79xx_reg.h
-
-$(addprefix $(obj)/,$(aic7xxx-y)): $(obj)/aic7xxx_seq.h
-$(addprefix $(obj)/,$(aic79xx-y)): $(obj)/aic79xx_seq.h
+$(addprefix $(src)/,$(aic7xxx-y:.o=.c)): $(obj)/aic7xxx_seq.h $(obj)/aic7xxx_reg.h
+$(addprefix $(src)/,$(aic79xx-y:.o=.c)): $(obj)/aic79xx_seq.h $(obj)/aic79xx_reg.h
aic7xxx-gen-$(CONFIG_AIC7XXX_BUILD_FIRMWARE) := $(obj)/aic7xxx_reg.h
aic7xxx-gen-$(CONFIG_AIC7XXX_REG_PRETTY_PRINT) += $(obj)/aic7xxx_reg_print.c
- (uint8_t *)ahd->qoutfifo);
}
-/*********************** Miscelaneous Support Functions ***********************/
+/*********************** Miscellaneous Support Functions ***********************/
static __inline struct ahd_initiator_tinfo *
ahd_fetch_transinfo(struct ahd_softc *ahd,
char channel, u_int our_id,
" verbose Enable verbose/diagnostic logging\n"
" allow_memio Allow device registers to be memory mapped\n"
" debug Bitmask of debug values to enable\n"
-" no_reset Supress initial bus resets\n"
+" no_reset Suppress initial bus resets\n"
" extended Enable extended geometry on all controllers\n"
" periodic_otag Send an ordered tagged transaction\n"
" periodically to prevent tag starvation.\n"
| AHD_FAINT_LED_BUG;
/*
- * IO Cell paramter setup.
+ * IO Cell parameter setup.
*/
AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
ahd->bugs |= AHD_INTCOLLISION_BUG|AHD_ABORT_LQI_BUG;
/*
- * IO Cell paramter setup.
+ * IO Cell parameter setup.
*/
AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
AHD_SET_SLEWRATE(ahd, AHD_SLEWRATE_DEF_REVB);
return (ahc->name);
}
-/*********************** Miscelaneous Support Functions ***********************/
+/*********************** Miscellaneous Support Functions ***********************/
static __inline void ahc_update_residual(struct ahc_softc *ahc,
struct scb *scb);
" debug Bitmask of debug values to enable\n"
" no_probe Toggle EISA/VLB controller probing\n"
" probe_eisa_vl Toggle EISA/VLB controller probing\n"
-" no_reset Supress initial bus resets\n"
+" no_reset Suppress initial bus resets\n"
" extended Enable extended geometry on all controllers\n"
" periodic_otag Send an ordered tagged transaction\n"
" periodically to prevent tag starvation.\n"
hwif->sg_mapped = 0;
}
- SELECT_DRIVE(drive);
-
ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK, bcount, dma);
if (dma)
set_bit(PC_DMA_OK, &pc->flags);
if (test_bit(IDESCSI_DRQ_INTERRUPT, &scsi->flags)) {
- BUG_ON(HWGROUP(drive)->handler != NULL);
- ide_set_handler(drive, &idescsi_transfer_pc,
- get_timeout(pc), idescsi_expiry);
- /* Issue the packet command */
- HWIF(drive)->OUTB(WIN_PACKETCMD, IDE_COMMAND_REG);
+ ide_execute_command(drive, WIN_PACKETCMD, &idescsi_transfer_pc,
+ get_timeout(pc), idescsi_expiry);
return ide_started;
} else {
/* Issue the packet command */
* where it can accept new commands.
* Return value:
- * 0 on sucess / -EIO on failure
+ * 0 on success / -EIO on failure
**/
static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
{
cstatus.value = (*ha->func.statupd) (ha);
if (cstatus.fields.command_id > (IPS_MAX_CMDS - 1)) {
- /* Spurious Interupt ? */
+ /* Spurious Interrupt ? */
continue;
}
#define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */
#define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */
-#define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timout */
+#define WORKER_FABRIC_BLOCK_TMO 0x400 /* hba: fabric block timeout */
#define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */
#define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */
uint16_t iotag;
int bars = pci_select_bars(pdev, IORESOURCE_MEM);
- if (pci_enable_device_bars(pdev, bars))
+ if (pci_enable_device_mem(pdev))
goto out;
if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
goto out_disable_device;
void
lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
{
- /* This function expects to be called from interupt context */
+ /* This function expects to be called from interrupt context */
spin_lock(&phba->hbalock);
list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
spin_unlock(&phba->hbalock);
/*
* START: Interface for the common management module
*
- * This is the module, which interfaces with the common mangement module to
+ * This is the module, which interfaces with the common management module to
* provide support for ioctl and sysfs
*/
/**
- * megaraid_cmm_register - register with the mangement module
+ * megaraid_cmm_register - register with the management module
* @adapter : HBA soft state
*
* Register with the management module, which allows applications to issue
/**
- * megaraid_cmm_unregister - un-register with the mangement module
+ * megaraid_cmm_unregister - un-register with the management module
* @adapter : HBA soft state
*
* Un-register with the management module.
* @kioc : CMM interface packet
* @action : command action
*
- * This routine is invoked whenever the Common Mangement Module (CMM) has a
+ * This routine is invoked whenever the Common Management Module (CMM) has a
* command for us. The 'action' parameter specifies if this is a new command
* or otherwise.
*/
*
* This routine will be called whenever user reads the logical drive
* attributes, go get the current logical drive mapping table from the
- * firmware. We use the managment API's to issue commands to the controller.
+ * firmware. We use the management API's to issue commands to the controller.
*
* NOTE: The commands issuance functionality is not generalized and
* implemented in context of "get ld map" command only. If required, the
}
/**
- * qla2x00_mgmt_svr_login() - Login to fabric Managment Service.
+ * qla2x00_mgmt_svr_login() - Login to fabric Management Service.
* @ha: HA context
*
* Returns 0 on success.
#define MAX_REQS_SERVICED_PER_INTR 16
#define ISCSI_IPADDR_SIZE 4 /* IP address size */
-#define ISCSI_ALIAS_SIZE 32 /* ISCSI Alais name size */
+#define ISCSI_ALIAS_SIZE 32 /* ISCSI Alias name size */
#define ISCSI_NAME_SIZE 0xE0 /* ISCSI Name size */
#define LSDW(x) ((u32)((u64)(x)))
}
config_chip = 1;
- /* Reset clears the semaphore, so aquire again */
+ /* Reset clears the semaphore, so acquire again */
if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
return QLA_ERROR;
}
EXPORT_SYMBOL_GPL(scsi_tgt_queue_command);
/*
- * This is run from a interrpt handler normally and the unmap
+ * This is run from a interrupt handler normally and the unmap
* needs process context so we must queue
*/
static void scsi_tgt_cmd_done(struct scsi_cmnd *cmd)
*
* The SAS transport class contains common code to deal with SAS HBAs,
* an aproximated representation of SAS topologies in the driver model,
- * and various sysfs attributes to expose these topologies and managment
+ * and various sysfs attributes to expose these topologies and management
* interfaces to userspace.
*
* In addition to the basic SCSI core objects this transport class
depends on SERIAL_NETX
select SERIAL_CORE_CONSOLE
help
- If you have enabled the serial port on the Motorola IMX
- CPU you can make it the console by answering Y to this option.
+ If you have enabled the serial port on the Hilscher NetX SoC
+ you can make it the console by answering Y to this option.
config SERIAL_OF_PLATFORM
tristate "Serial port on Open Firmware platform bus"
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include<linux/serial_core.h>
+#include <linux/serial_core.h>
#define BAUD_TABLE_LIMIT ((sizeof(icom_acfg_baud)/sizeof(int)) - 1)
static int icom_acfg_baud[] = {
};
/**
- * mux_init - Serial MUX initalization procedure.
+ * mux_init - Serial MUX initialization procedure.
*
* Register the Serial MUX driver.
*/
#define SPI_FIFO_BYTE_WIDTH (2)
#define SPI_FIFO_OVERFLOW_MARGIN (2)
-/* DMA burst lenght for half full/empty request trigger */
+/* DMA burst length for half full/empty request trigger */
#define SPI_DMA_BLR (SPI_FIFO_DEPTH * SPI_FIFO_BYTE_WIDTH / 2)
/* Dummy char output to achieve reads.
/*
* Broadcom 43xx PCI-SSB bridge module
*
- * This technically is a seperate PCI driver module, but
+ * This technically is a separate PCI driver module, but
* because of its small size we include it in the SSB core
* instead of creating a standalone module.
*
pci_read_config_dword(rinfo->pdev, i * 4,
&rinfo->cfg_save[i]);
- /* Switch PCI power managment to D2. */
+ /* Switch PCI power management to D2. */
pci_disable_device(rinfo->pdev);
for (;;) {
pci_read_config_word(
// need altered timings to display correctly. So I decided that it is much
// better to provide a limited optimized set of modes plus the option of
// using the mode in effect at startup time (might be selected using the
-// vga=??? paramter). After that the user might use fbset to select any
+// vga=??? parameter). After that the user might use fbset to select any
// mode he likes, check_var will not try to alter geometry parameters as
// it would be necessary otherwise.
//
#define FIXED_MODE(d) ((d)->fixed_mode)
-/*** Driver paramters ***/
+/*** Driver parameters ***/
#define RINGBUFFER_SIZE KB(64)
#define HW_CURSOR_SIZE KB(4)
/*
* Change to a new video mode. We defer this to a later time to avoid any
* flicker and not to mess up the current LCD DMA context. For this we disable
- * the LCD controler, which will generate a DONE irq after the last frame has
+ * the LCD controller, which will generate a DONE irq after the last frame has
* been transferred. Then it'll be safe to reconfigure both the LCD controller
* as well as the LCD DMA.
*/
HEAD_PANEL = 1,
};
-/* SM501 memory adress */
+/* SM501 memory address */
struct sm501_mem {
unsigned long size;
unsigned long sm_addr;
# Virtio always gets selected by whoever wants it.
config VIRTIO
- bool
+ tristate
# Similarly the virtio ring implementation.
config VIRTIO_RING
- bool
+ tristate
depends on VIRTIO
+
+config VIRTIO_PCI
+ tristate "PCI driver for virtio devices (EXPERIMENTAL)"
+ depends on PCI && EXPERIMENTAL
+ select VIRTIO
+ select VIRTIO_RING
+ ---help---
+ This drivers provides support for virtio based paravirtual device
+ drivers over PCI. This requires that your VMM has appropriate PCI
+ virtio backends. Most QEMU based VMMs should support these devices
+ (like KVM or Xen).
+
+ Currently, the ABI is not considered stable so there is no guarantee
+ that this version of the driver will work with your VMM.
+
+ If unsure, say M.
+
+config VIRTIO_BALLOON
+ tristate "Virtio balloon driver (EXPERIMENTAL)"
+ select VIRTIO
+ select VIRTIO_RING
+ ---help---
+ This driver supports increasing and decreasing the amount
+ of memory within a KVM guest.
+
+ If unsure, say M.
+
obj-$(CONFIG_VIRTIO) += virtio.o
obj-$(CONFIG_VIRTIO_RING) += virtio_ring.o
+obj-$(CONFIG_VIRTIO_PCI) += virtio_pci.o
+obj-$(CONFIG_VIRTIO_BALLOON) += virtio_balloon.o
struct virtio_driver *drv = container_of(dev->dev.driver,
struct virtio_driver, driver);
- dev->config->set_status(dev, dev->config->get_status(dev)
- & ~VIRTIO_CONFIG_S_DRIVER);
drv->remove(dev);
+
+ /* Driver should have reset device. */
+ BUG_ON(dev->config->get_status(dev));
+
+ /* Acknowledge the device's existence again. */
+ add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE);
return 0;
}
dev->dev.bus = &virtio_bus;
sprintf(dev->dev.bus_id, "%u", dev->index);
+ /* We always start by resetting the device, in case a previous
+ * driver messed it up. This also tests that code path a little. */
+ dev->config->reset(dev);
+
/* Acknowledge that we've seen the device. */
add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE);
}
EXPORT_SYMBOL_GPL(unregister_virtio_device);
-int __virtio_config_val(struct virtio_device *vdev,
- u8 type, void *val, size_t size)
-{
- void *token;
- unsigned int len;
-
- token = vdev->config->find(vdev, type, &len);
- if (!token)
- return -ENOENT;
-
- if (len != size)
- return -EIO;
-
- vdev->config->get(vdev, token, val, size);
- return 0;
-}
-EXPORT_SYMBOL_GPL(__virtio_config_val);
-
-int virtio_use_bit(struct virtio_device *vdev,
- void *token, unsigned int len, unsigned int bitnum)
-{
- unsigned long bits[16];
-
- /* This makes it convenient to pass-through find() results. */
- if (!token)
- return 0;
-
- /* bit not in range of this bitfield? */
- if (bitnum * 8 >= len / 2)
- return 0;
-
- /* Giant feature bitfields are silly. */
- BUG_ON(len > sizeof(bits));
- vdev->config->get(vdev, token, bits, len);
-
- if (!test_bit(bitnum, bits))
- return 0;
-
- /* Set acknowledge bit, and write it back. */
- set_bit(bitnum + len * 8 / 2, bits);
- vdev->config->set(vdev, token, bits, len);
- return 1;
-}
-EXPORT_SYMBOL_GPL(virtio_use_bit);
-
static int virtio_init(void)
{
if (bus_register(&virtio_bus) != 0)
panic("virtio bus registration failed");
return 0;
}
+
+static void __exit virtio_exit(void)
+{
+ bus_unregister(&virtio_bus);
+}
core_initcall(virtio_init);
+module_exit(virtio_exit);
+
+MODULE_LICENSE("GPL");
--- /dev/null
+/* Virtio balloon implementation, inspired by Dor Loar and Marcelo
+ * Tosatti's implementations.
+ *
+ * Copyright 2008 Rusty Russell IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+//#define DEBUG
+#include <linux/virtio.h>
+#include <linux/virtio_balloon.h>
+#include <linux/swap.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+
+struct virtio_balloon
+{
+ struct virtio_device *vdev;
+ struct virtqueue *inflate_vq, *deflate_vq;
+
+ /* Where the ballooning thread waits for config to change. */
+ wait_queue_head_t config_change;
+
+ /* The thread servicing the balloon. */
+ struct task_struct *thread;
+
+ /* Waiting for host to ack the pages we released. */
+ struct completion acked;
+
+ /* Do we have to tell Host *before* we reuse pages? */
+ bool tell_host_first;
+
+ /* The pages we've told the Host we're not using. */
+ unsigned int num_pages;
+ struct list_head pages;
+
+ /* The array of pfns we tell the Host about. */
+ unsigned int num_pfns;
+ u32 pfns[256];
+};
+
+static struct virtio_device_id id_table[] = {
+ { VIRTIO_ID_BALLOON, VIRTIO_DEV_ANY_ID },
+ { 0 },
+};
+
+static void balloon_ack(struct virtqueue *vq)
+{
+ struct virtio_balloon *vb;
+ unsigned int len;
+
+ vb = vq->vq_ops->get_buf(vq, &len);
+ if (vb)
+ complete(&vb->acked);
+}
+
+static void tell_host(struct virtio_balloon *vb, struct virtqueue *vq)
+{
+ struct scatterlist sg;
+
+ sg_init_one(&sg, vb->pfns, sizeof(vb->pfns[0]) * vb->num_pfns);
+
+ init_completion(&vb->acked);
+
+ /* We should always be able to add one buffer to an empty queue. */
+ if (vq->vq_ops->add_buf(vq, &sg, 1, 0, vb) != 0)
+ BUG();
+ vq->vq_ops->kick(vq);
+
+ /* When host has read buffer, this completes via balloon_ack */
+ wait_for_completion(&vb->acked);
+}
+
+static void fill_balloon(struct virtio_balloon *vb, size_t num)
+{
+ /* We can only do one array worth at a time. */
+ num = min(num, ARRAY_SIZE(vb->pfns));
+
+ for (vb->num_pfns = 0; vb->num_pfns < num; vb->num_pfns++) {
+ struct page *page = alloc_page(GFP_HIGHUSER | __GFP_NORETRY);
+ if (!page) {
+ if (printk_ratelimit())
+ dev_printk(KERN_INFO, &vb->vdev->dev,
+ "Out of puff! Can't get %zu pages\n",
+ num);
+ /* Sleep for at least 1/5 of a second before retry. */
+ msleep(200);
+ break;
+ }
+ vb->pfns[vb->num_pfns] = page_to_pfn(page);
+ totalram_pages--;
+ vb->num_pages++;
+ list_add(&page->lru, &vb->pages);
+ }
+
+ /* Didn't get any? Oh well. */
+ if (vb->num_pfns == 0)
+ return;
+
+ tell_host(vb, vb->inflate_vq);
+}
+
+static void release_pages_by_pfn(const u32 pfns[], unsigned int num)
+{
+ unsigned int i;
+
+ for (i = 0; i < num; i++) {
+ __free_page(pfn_to_page(pfns[i]));
+ totalram_pages++;
+ }
+}
+
+static void leak_balloon(struct virtio_balloon *vb, size_t num)
+{
+ struct page *page;
+
+ /* We can only do one array worth at a time. */
+ num = min(num, ARRAY_SIZE(vb->pfns));
+
+ for (vb->num_pfns = 0; vb->num_pfns < num; vb->num_pfns++) {
+ page = list_first_entry(&vb->pages, struct page, lru);
+ list_del(&page->lru);
+ vb->pfns[vb->num_pfns] = page_to_pfn(page);
+ vb->num_pages--;
+ }
+
+ if (vb->tell_host_first) {
+ tell_host(vb, vb->deflate_vq);
+ release_pages_by_pfn(vb->pfns, vb->num_pfns);
+ } else {
+ release_pages_by_pfn(vb->pfns, vb->num_pfns);
+ tell_host(vb, vb->deflate_vq);
+ }
+}
+
+static void virtballoon_changed(struct virtio_device *vdev)
+{
+ struct virtio_balloon *vb = vdev->priv;
+
+ wake_up(&vb->config_change);
+}
+
+static inline int towards_target(struct virtio_balloon *vb)
+{
+ u32 v;
+ __virtio_config_val(vb->vdev,
+ offsetof(struct virtio_balloon_config, num_pages),
+ &v);
+ return v - vb->num_pages;
+}
+
+static void update_balloon_size(struct virtio_balloon *vb)
+{
+ __le32 actual = cpu_to_le32(vb->num_pages);
+
+ vb->vdev->config->set(vb->vdev,
+ offsetof(struct virtio_balloon_config, actual),
+ &actual, sizeof(actual));
+}
+
+static int balloon(void *_vballoon)
+{
+ struct virtio_balloon *vb = _vballoon;
+
+ set_freezable();
+ while (!kthread_should_stop()) {
+ int diff;
+
+ try_to_freeze();
+ wait_event_interruptible(vb->config_change,
+ (diff = towards_target(vb)) != 0
+ || kthread_should_stop());
+ if (diff > 0)
+ fill_balloon(vb, diff);
+ else if (diff < 0)
+ leak_balloon(vb, -diff);
+ update_balloon_size(vb);
+ }
+ return 0;
+}
+
+static int virtballoon_probe(struct virtio_device *vdev)
+{
+ struct virtio_balloon *vb;
+ int err;
+
+ vdev->priv = vb = kmalloc(sizeof(*vb), GFP_KERNEL);
+ if (!vb) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ INIT_LIST_HEAD(&vb->pages);
+ vb->num_pages = 0;
+ init_waitqueue_head(&vb->config_change);
+ vb->vdev = vdev;
+
+ /* We expect two virtqueues. */
+ vb->inflate_vq = vdev->config->find_vq(vdev, 0, balloon_ack);
+ if (IS_ERR(vb->inflate_vq)) {
+ err = PTR_ERR(vb->inflate_vq);
+ goto out_free_vb;
+ }
+
+ vb->deflate_vq = vdev->config->find_vq(vdev, 1, balloon_ack);
+ if (IS_ERR(vb->deflate_vq)) {
+ err = PTR_ERR(vb->deflate_vq);
+ goto out_del_inflate_vq;
+ }
+
+ vb->thread = kthread_run(balloon, vb, "vballoon");
+ if (IS_ERR(vb->thread)) {
+ err = PTR_ERR(vb->thread);
+ goto out_del_deflate_vq;
+ }
+
+ vb->tell_host_first
+ = vdev->config->feature(vdev, VIRTIO_BALLOON_F_MUST_TELL_HOST);
+
+ return 0;
+
+out_del_deflate_vq:
+ vdev->config->del_vq(vb->deflate_vq);
+out_del_inflate_vq:
+ vdev->config->del_vq(vb->inflate_vq);
+out_free_vb:
+ kfree(vb);
+out:
+ return err;
+}
+
+static void virtballoon_remove(struct virtio_device *vdev)
+{
+ struct virtio_balloon *vb = vdev->priv;
+
+ kthread_stop(vb->thread);
+
+ /* There might be pages left in the balloon: free them. */
+ while (vb->num_pages)
+ leak_balloon(vb, vb->num_pages);
+
+ /* Now we reset the device so we can clean up the queues. */
+ vdev->config->reset(vdev);
+
+ vdev->config->del_vq(vb->deflate_vq);
+ vdev->config->del_vq(vb->inflate_vq);
+ kfree(vb);
+}
+
+static struct virtio_driver virtio_balloon = {
+ .driver.name = KBUILD_MODNAME,
+ .driver.owner = THIS_MODULE,
+ .id_table = id_table,
+ .probe = virtballoon_probe,
+ .remove = __devexit_p(virtballoon_remove),
+ .config_changed = virtballoon_changed,
+};
+
+static int __init init(void)
+{
+ return register_virtio_driver(&virtio_balloon);
+}
+
+static void __exit fini(void)
+{
+ unregister_virtio_driver(&virtio_balloon);
+}
+module_init(init);
+module_exit(fini);
+
+MODULE_DEVICE_TABLE(virtio, id_table);
+MODULE_DESCRIPTION("Virtio balloon driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Virtio PCI driver
+ *
+ * This module allows virtio devices to be used over a virtual PCI device.
+ * This can be used with QEMU based VMMs like KVM or Xen.
+ *
+ * Copyright IBM Corp. 2007
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/list.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/virtio.h>
+#include <linux/virtio_config.h>
+#include <linux/virtio_ring.h>
+#include <linux/virtio_pci.h>
+#include <linux/highmem.h>
+#include <linux/spinlock.h>
+
+MODULE_AUTHOR("Anthony Liguori <aliguori@us.ibm.com>");
+MODULE_DESCRIPTION("virtio-pci");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("1");
+
+/* Our device structure */
+struct virtio_pci_device
+{
+ struct virtio_device vdev;
+ struct pci_dev *pci_dev;
+
+ /* the IO mapping for the PCI config space */
+ void *ioaddr;
+
+ /* a list of queues so we can dispatch IRQs */
+ spinlock_t lock;
+ struct list_head virtqueues;
+};
+
+struct virtio_pci_vq_info
+{
+ /* the actual virtqueue */
+ struct virtqueue *vq;
+
+ /* the number of entries in the queue */
+ int num;
+
+ /* the index of the queue */
+ int queue_index;
+
+ /* the virtual address of the ring queue */
+ void *queue;
+
+ /* the list node for the virtqueues list */
+ struct list_head node;
+};
+
+/* Qumranet donated their vendor ID for devices 0x1000 thru 0x10FF. */
+static struct pci_device_id virtio_pci_id_table[] = {
+ { 0x1af4, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { 0 },
+};
+
+MODULE_DEVICE_TABLE(pci, virtio_pci_id_table);
+
+/* A PCI device has it's own struct device and so does a virtio device so
+ * we create a place for the virtio devices to show up in sysfs. I think it
+ * would make more sense for virtio to not insist on having it's own device. */
+static struct device virtio_pci_root = {
+ .parent = NULL,
+ .bus_id = "virtio-pci",
+};
+
+/* Unique numbering for devices under the kvm root */
+static unsigned int dev_index;
+
+/* Convert a generic virtio device to our structure */
+static struct virtio_pci_device *to_vp_device(struct virtio_device *vdev)
+{
+ return container_of(vdev, struct virtio_pci_device, vdev);
+}
+
+/* virtio config->feature() implementation */
+static bool vp_feature(struct virtio_device *vdev, unsigned bit)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+ u32 mask;
+
+ /* Since this function is supposed to have the side effect of
+ * enabling a queried feature, we simulate that by doing a read
+ * from the host feature bitmask and then writing to the guest
+ * feature bitmask */
+ mask = ioread32(vp_dev->ioaddr + VIRTIO_PCI_HOST_FEATURES);
+ if (mask & (1 << bit)) {
+ mask |= (1 << bit);
+ iowrite32(mask, vp_dev->ioaddr + VIRTIO_PCI_GUEST_FEATURES);
+ }
+
+ return !!(mask & (1 << bit));
+}
+
+/* virtio config->get() implementation */
+static void vp_get(struct virtio_device *vdev, unsigned offset,
+ void *buf, unsigned len)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+ void *ioaddr = vp_dev->ioaddr + VIRTIO_PCI_CONFIG + offset;
+ u8 *ptr = buf;
+ int i;
+
+ for (i = 0; i < len; i++)
+ ptr[i] = ioread8(ioaddr + i);
+}
+
+/* the config->set() implementation. it's symmetric to the config->get()
+ * implementation */
+static void vp_set(struct virtio_device *vdev, unsigned offset,
+ const void *buf, unsigned len)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+ void *ioaddr = vp_dev->ioaddr + VIRTIO_PCI_CONFIG + offset;
+ const u8 *ptr = buf;
+ int i;
+
+ for (i = 0; i < len; i++)
+ iowrite8(ptr[i], ioaddr + i);
+}
+
+/* config->{get,set}_status() implementations */
+static u8 vp_get_status(struct virtio_device *vdev)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+ return ioread8(vp_dev->ioaddr + VIRTIO_PCI_STATUS);
+}
+
+static void vp_set_status(struct virtio_device *vdev, u8 status)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+ /* We should never be setting status to 0. */
+ BUG_ON(status == 0);
+ return iowrite8(status, vp_dev->ioaddr + VIRTIO_PCI_STATUS);
+}
+
+static void vp_reset(struct virtio_device *vdev)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+ /* 0 status means a reset. */
+ return iowrite8(0, vp_dev->ioaddr + VIRTIO_PCI_STATUS);
+}
+
+/* the notify function used when creating a virt queue */
+static void vp_notify(struct virtqueue *vq)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);
+ struct virtio_pci_vq_info *info = vq->priv;
+
+ /* we write the queue's selector into the notification register to
+ * signal the other end */
+ iowrite16(info->queue_index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_NOTIFY);
+}
+
+/* A small wrapper to also acknowledge the interrupt when it's handled.
+ * I really need an EIO hook for the vring so I can ack the interrupt once we
+ * know that we'll be handling the IRQ but before we invoke the callback since
+ * the callback may notify the host which results in the host attempting to
+ * raise an interrupt that we would then mask once we acknowledged the
+ * interrupt. */
+static irqreturn_t vp_interrupt(int irq, void *opaque)
+{
+ struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_pci_vq_info *info;
+ irqreturn_t ret = IRQ_NONE;
+ u8 isr;
+
+ /* reading the ISR has the effect of also clearing it so it's very
+ * important to save off the value. */
+ isr = ioread8(vp_dev->ioaddr + VIRTIO_PCI_ISR);
+
+ /* It's definitely not us if the ISR was not high */
+ if (!isr)
+ return IRQ_NONE;
+
+ /* Configuration change? Tell driver if it wants to know. */
+ if (isr & VIRTIO_PCI_ISR_CONFIG) {
+ struct virtio_driver *drv;
+ drv = container_of(vp_dev->vdev.dev.driver,
+ struct virtio_driver, driver);
+
+ if (drv->config_changed)
+ drv->config_changed(&vp_dev->vdev);
+ }
+
+ spin_lock(&vp_dev->lock);
+ list_for_each_entry(info, &vp_dev->virtqueues, node) {
+ if (vring_interrupt(irq, info->vq) == IRQ_HANDLED)
+ ret = IRQ_HANDLED;
+ }
+ spin_unlock(&vp_dev->lock);
+
+ return ret;
+}
+
+/* the config->find_vq() implementation */
+static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index,
+ void (*callback)(struct virtqueue *vq))
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+ struct virtio_pci_vq_info *info;
+ struct virtqueue *vq;
+ u16 num;
+ int err;
+
+ /* Select the queue we're interested in */
+ iowrite16(index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL);
+
+ /* Check if queue is either not available or already active. */
+ num = ioread16(vp_dev->ioaddr + VIRTIO_PCI_QUEUE_NUM);
+ if (!num || ioread32(vp_dev->ioaddr + VIRTIO_PCI_QUEUE_PFN))
+ return ERR_PTR(-ENOENT);
+
+ /* allocate and fill out our structure the represents an active
+ * queue */
+ info = kmalloc(sizeof(struct virtio_pci_vq_info), GFP_KERNEL);
+ if (!info)
+ return ERR_PTR(-ENOMEM);
+
+ info->queue_index = index;
+ info->num = num;
+
+ info->queue = kzalloc(PAGE_ALIGN(vring_size(num,PAGE_SIZE)), GFP_KERNEL);
+ if (info->queue == NULL) {
+ err = -ENOMEM;
+ goto out_info;
+ }
+
+ /* activate the queue */
+ iowrite32(virt_to_phys(info->queue) >> PAGE_SHIFT,
+ vp_dev->ioaddr + VIRTIO_PCI_QUEUE_PFN);
+
+ /* create the vring */
+ vq = vring_new_virtqueue(info->num, vdev, info->queue,
+ vp_notify, callback);
+ if (!vq) {
+ err = -ENOMEM;
+ goto out_activate_queue;
+ }
+
+ vq->priv = info;
+ info->vq = vq;
+
+ spin_lock(&vp_dev->lock);
+ list_add(&info->node, &vp_dev->virtqueues);
+ spin_unlock(&vp_dev->lock);
+
+ return vq;
+
+out_activate_queue:
+ iowrite32(0, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_PFN);
+ kfree(info->queue);
+out_info:
+ kfree(info);
+ return ERR_PTR(err);
+}
+
+/* the config->del_vq() implementation */
+static void vp_del_vq(struct virtqueue *vq)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);
+ struct virtio_pci_vq_info *info = vq->priv;
+
+ spin_lock(&vp_dev->lock);
+ list_del(&info->node);
+ spin_unlock(&vp_dev->lock);
+
+ vring_del_virtqueue(vq);
+
+ /* Select and deactivate the queue */
+ iowrite16(info->queue_index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL);
+ iowrite32(0, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_PFN);
+
+ kfree(info->queue);
+ kfree(info);
+}
+
+static struct virtio_config_ops virtio_pci_config_ops = {
+ .feature = vp_feature,
+ .get = vp_get,
+ .set = vp_set,
+ .get_status = vp_get_status,
+ .set_status = vp_set_status,
+ .reset = vp_reset,
+ .find_vq = vp_find_vq,
+ .del_vq = vp_del_vq,
+};
+
+/* the PCI probing function */
+static int __devinit virtio_pci_probe(struct pci_dev *pci_dev,
+ const struct pci_device_id *id)
+{
+ struct virtio_pci_device *vp_dev;
+ int err;
+
+ /* We only own devices >= 0x1000 and <= 0x103f: leave the rest. */
+ if (pci_dev->device < 0x1000 || pci_dev->device > 0x103f)
+ return -ENODEV;
+
+ if (pci_dev->revision != VIRTIO_PCI_ABI_VERSION) {
+ printk(KERN_ERR "virtio_pci: expected ABI version %d, got %d\n",
+ VIRTIO_PCI_ABI_VERSION, pci_dev->revision);
+ return -ENODEV;
+ }
+
+ /* allocate our structure and fill it out */
+ vp_dev = kzalloc(sizeof(struct virtio_pci_device), GFP_KERNEL);
+ if (vp_dev == NULL)
+ return -ENOMEM;
+
+ snprintf(vp_dev->vdev.dev.bus_id, BUS_ID_SIZE, "virtio%d", dev_index);
+ vp_dev->vdev.index = dev_index;
+ dev_index++;
+
+ vp_dev->vdev.dev.parent = &virtio_pci_root;
+ vp_dev->vdev.config = &virtio_pci_config_ops;
+ vp_dev->pci_dev = pci_dev;
+ INIT_LIST_HEAD(&vp_dev->virtqueues);
+ spin_lock_init(&vp_dev->lock);
+
+ /* enable the device */
+ err = pci_enable_device(pci_dev);
+ if (err)
+ goto out;
+
+ err = pci_request_regions(pci_dev, "virtio-pci");
+ if (err)
+ goto out_enable_device;
+
+ vp_dev->ioaddr = pci_iomap(pci_dev, 0, 0);
+ if (vp_dev->ioaddr == NULL)
+ goto out_req_regions;
+
+ pci_set_drvdata(pci_dev, vp_dev);
+
+ /* we use the subsystem vendor/device id as the virtio vendor/device
+ * id. this allows us to use the same PCI vendor/device id for all
+ * virtio devices and to identify the particular virtio driver by
+ * the subsytem ids */
+ vp_dev->vdev.id.vendor = pci_dev->subsystem_vendor;
+ vp_dev->vdev.id.device = pci_dev->subsystem_device;
+
+ /* register a handler for the queue with the PCI device's interrupt */
+ err = request_irq(vp_dev->pci_dev->irq, vp_interrupt, IRQF_SHARED,
+ vp_dev->vdev.dev.bus_id, vp_dev);
+ if (err)
+ goto out_set_drvdata;
+
+ /* finally register the virtio device */
+ err = register_virtio_device(&vp_dev->vdev);
+ if (err)
+ goto out_req_irq;
+
+ return 0;
+
+out_req_irq:
+ free_irq(pci_dev->irq, vp_dev);
+out_set_drvdata:
+ pci_set_drvdata(pci_dev, NULL);
+ pci_iounmap(pci_dev, vp_dev->ioaddr);
+out_req_regions:
+ pci_release_regions(pci_dev);
+out_enable_device:
+ pci_disable_device(pci_dev);
+out:
+ kfree(vp_dev);
+ return err;
+}
+
+static void __devexit virtio_pci_remove(struct pci_dev *pci_dev)
+{
+ struct virtio_pci_device *vp_dev = pci_get_drvdata(pci_dev);
+
+ free_irq(pci_dev->irq, vp_dev);
+ pci_set_drvdata(pci_dev, NULL);
+ pci_iounmap(pci_dev, vp_dev->ioaddr);
+ pci_release_regions(pci_dev);
+ pci_disable_device(pci_dev);
+ kfree(vp_dev);
+}
+
+#ifdef CONFIG_PM
+static int virtio_pci_suspend(struct pci_dev *pci_dev, pm_message_t state)
+{
+ pci_save_state(pci_dev);
+ pci_set_power_state(pci_dev, PCI_D3hot);
+ return 0;
+}
+
+static int virtio_pci_resume(struct pci_dev *pci_dev)
+{
+ pci_restore_state(pci_dev);
+ pci_set_power_state(pci_dev, PCI_D0);
+ return 0;
+}
+#endif
+
+static struct pci_driver virtio_pci_driver = {
+ .name = "virtio-pci",
+ .id_table = virtio_pci_id_table,
+ .probe = virtio_pci_probe,
+ .remove = virtio_pci_remove,
+#ifdef CONFIG_PM
+ .suspend = virtio_pci_suspend,
+ .resume = virtio_pci_resume,
+#endif
+};
+
+static int __init virtio_pci_init(void)
+{
+ int err;
+
+ err = device_register(&virtio_pci_root);
+ if (err)
+ return err;
+
+ err = pci_register_driver(&virtio_pci_driver);
+ if (err)
+ device_unregister(&virtio_pci_root);
+
+ return err;
+}
+
+module_init(virtio_pci_init);
+
+static void __exit virtio_pci_exit(void)
+{
+ device_unregister(&virtio_pci_root);
+ pci_unregister_driver(&virtio_pci_driver);
+}
+
+module_exit(virtio_pci_exit);
if (vq->num_free < out + in) {
pr_debug("Can't add buf len %i - avail = %i\n",
out + in, vq->num_free);
+ /* We notify *even if* VRING_USED_F_NO_NOTIFY is set here. */
+ vq->notify(&vq->vq);
END_USE(vq);
return -ENOSPC;
}
head = vq->free_head;
for (i = vq->free_head; out; i = vq->vring.desc[i].next, out--) {
vq->vring.desc[i].flags = VRING_DESC_F_NEXT;
- vq->vring.desc[i].addr = (page_to_pfn(sg_page(sg))<<PAGE_SHIFT)
- + sg->offset;
+ vq->vring.desc[i].addr = sg_phys(sg);
vq->vring.desc[i].len = sg->length;
prev = i;
sg++;
}
for (; in; i = vq->vring.desc[i].next, in--) {
vq->vring.desc[i].flags = VRING_DESC_F_NEXT|VRING_DESC_F_WRITE;
- vq->vring.desc[i].addr = (page_to_pfn(sg_page(sg))<<PAGE_SHIFT)
- + sg->offset;
+ vq->vring.desc[i].addr = sg_phys(sg);
vq->vring.desc[i].len = sg->length;
prev = i;
sg++;
vq->num_free++;
}
-/* FIXME: We need to tell other side about removal, to synchronize. */
-static void vring_shutdown(struct virtqueue *_vq)
-{
- struct vring_virtqueue *vq = to_vvq(_vq);
- unsigned int i;
-
- for (i = 0; i < vq->vring.num; i++)
- detach_buf(vq, i);
-}
-
static inline bool more_used(const struct vring_virtqueue *vq)
{
return vq->last_used_idx != vq->vring.used->idx;
return ret;
}
-static bool vring_restart(struct virtqueue *_vq)
+static void vring_disable_cb(struct virtqueue *_vq)
+{
+ struct vring_virtqueue *vq = to_vvq(_vq);
+
+ START_USE(vq);
+ BUG_ON(vq->vring.avail->flags & VRING_AVAIL_F_NO_INTERRUPT);
+ vq->vring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;
+ END_USE(vq);
+}
+
+static bool vring_enable_cb(struct virtqueue *_vq)
{
struct vring_virtqueue *vq = to_vvq(_vq);
if (unlikely(vq->broken))
return IRQ_HANDLED;
+ /* Other side may have missed us turning off the interrupt,
+ * but we should preserve disable semantic for virtio users. */
+ if (unlikely(vq->vring.avail->flags & VRING_AVAIL_F_NO_INTERRUPT)) {
+ pr_debug("virtqueue interrupt after disable for %p\n", vq);
+ return IRQ_HANDLED;
+ }
+
pr_debug("virtqueue callback for %p (%p)\n", vq, vq->vq.callback);
- if (vq->vq.callback && !vq->vq.callback(&vq->vq))
- vq->vring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;
+ if (vq->vq.callback)
+ vq->vq.callback(&vq->vq);
return IRQ_HANDLED;
}
+EXPORT_SYMBOL_GPL(vring_interrupt);
static struct virtqueue_ops vring_vq_ops = {
.add_buf = vring_add_buf,
.get_buf = vring_get_buf,
.kick = vring_kick,
- .restart = vring_restart,
- .shutdown = vring_shutdown,
+ .disable_cb = vring_disable_cb,
+ .enable_cb = vring_enable_cb,
};
struct virtqueue *vring_new_virtqueue(unsigned int num,
struct virtio_device *vdev,
void *pages,
void (*notify)(struct virtqueue *),
- bool (*callback)(struct virtqueue *))
+ void (*callback)(struct virtqueue *))
{
struct vring_virtqueue *vq;
unsigned int i;
return &vq->vq;
}
+EXPORT_SYMBOL_GPL(vring_new_virtqueue);
void vring_del_virtqueue(struct virtqueue *vq)
{
kfree(to_vvq(vq));
}
+EXPORT_SYMBOL_GPL(vring_del_virtqueue);
+MODULE_LICENSE("GPL");
* overflow periods respectively.
*
* Also, since we can't really expect userspace to be responsive enough
- * before the overflow happens, we maintain two seperate timers .. One in
+ * before the overflow happens, we maintain two separate timers .. One in
* the kernel for clearing out WOVF every 2ms or so (again, this depends on
* HZ == 1000), and another for monitoring userspace writes to the WDT device.
*
* @key: Key string to lookup in btree
* @value: Value stored with @key
*
- * On sucess, returns BEFS_OK and sets *@value to the value stored
+ * On success, returns BEFS_OK and sets *@value to the value stored
* with @key (usually the disk block number of an inode).
*
* On failure, returns BEFS_ERR or BEFS_BT_NOT_FOUND.
as in the indirect region code).
When/if blockno is found, if blockno is inside of a block
- run as stored on disk, we offset the start and lenght members
+ run as stored on disk, we offset the start and length members
of the block run, so that blockno is the start and len is
still valid (the run ends in the same place).
return 0;
}
-/* Let's use some macros to make this stack manipulation a litle clearer */
+/* Let's use some macros to make this stack manipulation a little clearer */
#ifdef CONFIG_STACK_GROWSUP
#define STACK_ADD(sp, items) ((elf_addr_t __user *)(sp) + (items))
#define STACK_ROUND(sp, items) \
* VxFS directory block header.
*
* This entry is the head of every filesystem block in a directory.
- * It is used for free space managment and additionally includes
+ * It is used for free space management and additionally includes
* a hash for speeding up directory search (lookup).
*
* The hash may be empty and in fact we do not use it all in the
};
/*
- * Adress space operations for immed files and directories.
+ * Address space operations for immed files and directories.
*/
const struct address_space_operations vxfs_immed_aops = {
.readpage = vxfs_immed_readpage,
fs_info(sdp, "jid=%u: Trying to acquire journal lock...\n",
jd->jd_jid);
- /* Aquire the journal lock so we can do recovery */
+ /* Acquire the journal lock so we can do recovery */
error = gfs2_glock_nq_num(sdp, jd->jd_jid, &gfs2_journal_glops,
LM_ST_EXCLUSIVE,
* are not obsolete.
*
* Of course, this optimization only makes sense in case
- * of NAND flashes (or other flashes whith
+ * of NAND flashes (or other flashes with
* !jffs2_can_mark_obsolete()), since on NOR flashes
* nodes are marked obsolete physically.
*
* xtTruncate_pmap()
*
* function:
- * Perform truncate to zero lenghth for deleted file, leaving the
+ * Perform truncate to zero length for deleted file, leaving the
* the xtree and working map untouched. This allows the file to
* be accessed via open file handles, while the delete of the file
* is committed to disk.
#include <linux/syscalls.h>
#include <linux/time.h>
#include <linux/rcupdate.h>
+#include <linux/pid_namespace.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>
fl->fl_fasync = NULL;
fl->fl_owner = NULL;
fl->fl_pid = 0;
+ fl->fl_nspid = NULL;
fl->fl_file = NULL;
fl->fl_flags = 0;
fl->fl_type = 0;
{
list_add(&fl->fl_link, &file_lock_list);
+ fl->fl_nspid = get_pid(task_tgid(current));
+
/* insert into file's list */
fl->fl_next = *pos;
*pos = fl;
if (fl->fl_ops && fl->fl_ops->fl_remove)
fl->fl_ops->fl_remove(fl);
+ if (fl->fl_nspid) {
+ put_pid(fl->fl_nspid);
+ fl->fl_nspid = NULL;
+ }
+
locks_wake_up_blocks(fl);
locks_free_lock(fl);
}
return (locks_conflict(caller_fl, sys_fl));
}
-static int interruptible_sleep_on_locked(wait_queue_head_t *fl_wait, int timeout)
-{
- int result = 0;
- DECLARE_WAITQUEUE(wait, current);
-
- __set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(fl_wait, &wait);
- if (timeout == 0)
- schedule();
- else
- result = schedule_timeout(timeout);
- if (signal_pending(current))
- result = -ERESTARTSYS;
- remove_wait_queue(fl_wait, &wait);
- __set_current_state(TASK_RUNNING);
- return result;
-}
-
-static int locks_block_on_timeout(struct file_lock *blocker, struct file_lock *waiter, int time)
-{
- int result;
- locks_insert_block(blocker, waiter);
- result = interruptible_sleep_on_locked(&waiter->fl_wait, time);
- __locks_delete_block(waiter);
- return result;
-}
-
void
posix_test_lock(struct file *filp, struct file_lock *fl)
{
if (posix_locks_conflict(fl, cfl))
break;
}
- if (cfl)
+ if (cfl) {
__locks_copy_lock(fl, cfl);
- else
+ if (cfl->fl_nspid)
+ fl->fl_pid = pid_nr_ns(cfl->fl_nspid,
+ task_active_pid_ns(current));
+ } else
fl->fl_type = F_UNLCK;
unlock_kernel();
return;
}
-
EXPORT_SYMBOL(posix_test_lock);
-/* This function tests for deadlock condition before putting a process to
- * sleep. The detection scheme is no longer recursive. Recursive was neat,
- * but dangerous - we risked stack corruption if the lock data was bad, or
- * if the recursion was too deep for any other reason.
+/*
+ * Deadlock detection:
+ *
+ * We attempt to detect deadlocks that are due purely to posix file
+ * locks.
*
- * We rely on the fact that a task can only be on one lock's wait queue
- * at a time. When we find blocked_task on a wait queue we can re-search
- * with blocked_task equal to that queue's owner, until either blocked_task
- * isn't found, or blocked_task is found on a queue owned by my_task.
+ * We assume that a task can be waiting for at most one lock at a time.
+ * So for any acquired lock, the process holding that lock may be
+ * waiting on at most one other lock. That lock in turns may be held by
+ * someone waiting for at most one other lock. Given a requested lock
+ * caller_fl which is about to wait for a conflicting lock block_fl, we
+ * follow this chain of waiters to ensure we are not about to create a
+ * cycle.
*
- * Note: the above assumption may not be true when handling lock requests
- * from a broken NFS client. But broken NFS clients have a lot more to
- * worry about than proper deadlock detection anyway... --okir
+ * Since we do this before we ever put a process to sleep on a lock, we
+ * are ensured that there is never a cycle; that is what guarantees that
+ * the while() loop in posix_locks_deadlock() eventually completes.
*
- * However, the failure of this assumption (also possible in the case of
- * multiple tasks sharing the same open file table) also means there's no
- * guarantee that the loop below will terminate. As a hack, we give up
- * after a few iterations.
+ * Note: the above assumption may not be true when handling lock
+ * requests from a broken NFS client. It may also fail in the presence
+ * of tasks (such as posix threads) sharing the same open file table.
+ *
+ * To handle those cases, we just bail out after a few iterations.
*/
#define MAX_DEADLK_ITERATIONS 10
+/* Find a lock that the owner of the given block_fl is blocking on. */
+static struct file_lock *what_owner_is_waiting_for(struct file_lock *block_fl)
+{
+ struct file_lock *fl;
+
+ list_for_each_entry(fl, &blocked_list, fl_link) {
+ if (posix_same_owner(fl, block_fl))
+ return fl->fl_next;
+ }
+ return NULL;
+}
+
static int posix_locks_deadlock(struct file_lock *caller_fl,
struct file_lock *block_fl)
{
- struct file_lock *fl;
int i = 0;
-next_task:
- if (posix_same_owner(caller_fl, block_fl))
- return 1;
- list_for_each_entry(fl, &blocked_list, fl_link) {
- if (posix_same_owner(fl, block_fl)) {
- if (i++ > MAX_DEADLK_ITERATIONS)
- return 0;
- fl = fl->fl_next;
- block_fl = fl;
- goto next_task;
- }
+ while ((block_fl = what_owner_is_waiting_for(block_fl))) {
+ if (i++ > MAX_DEADLK_ITERATIONS)
+ return 0;
+ if (posix_same_owner(caller_fl, block_fl))
+ return 1;
}
return 0;
}
if (break_time == 0)
break_time++;
}
- error = locks_block_on_timeout(flock, new_fl, break_time);
+ locks_insert_block(flock, new_fl);
+ error = wait_event_interruptible_timeout(new_fl->fl_wait,
+ !new_fl->fl_next, break_time);
+ __locks_delete_block(new_fl);
if (error >= 0) {
if (error == 0)
time_out_leases(inode);
int id, char *pfx)
{
struct inode *inode = NULL;
+ unsigned int fl_pid;
+
+ if (fl->fl_nspid)
+ fl_pid = pid_nr_ns(fl->fl_nspid, task_active_pid_ns(current));
+ else
+ fl_pid = fl->fl_pid;
if (fl->fl_file != NULL)
inode = fl->fl_file->f_path.dentry->d_inode;
}
if (inode) {
#ifdef WE_CAN_BREAK_LSLK_NOW
- seq_printf(f, "%d %s:%ld ", fl->fl_pid,
+ seq_printf(f, "%d %s:%ld ", fl_pid,
inode->i_sb->s_id, inode->i_ino);
#else
/* userspace relies on this representation of dev_t ;-( */
- seq_printf(f, "%d %02x:%02x:%ld ", fl->fl_pid,
+ seq_printf(f, "%d %02x:%02x:%ld ", fl_pid,
MAJOR(inode->i_sb->s_dev),
MINOR(inode->i_sb->s_dev), inode->i_ino);
#endif
} else {
- seq_printf(f, "%d <none>:0 ", fl->fl_pid);
+ seq_printf(f, "%d <none>:0 ", fl_pid);
}
if (IS_POSIX(fl)) {
if (fl->fl_end == OFFSET_MAX)
pos = vmf->pgoff << PAGE_SHIFT;
count = PAGE_SIZE;
- if ((unsigned long)vmf->virtual_address + PAGE_SIZE > area->vm_end) {
- WARN_ON(1); /* shouldn't happen? */
- count = area->vm_end - (unsigned long)vmf->virtual_address;
- }
/* what we can read in one go */
bufsize = NCP_SERVER(inode)->buffer_size;
if (insert->ins_split != SPLIT_NONE) {
/*
* We could call ocfs2_insert_at_leaf() for some types
- * of splits, but it's easier to just let one seperate
+ * of splits, but it's easier to just let one separate
* function sort it all out.
*/
ocfs2_split_record(inode, left_path, right_path,
down_write(&oi->ip_alloc_sem);
/*
- * Prepare for worst case allocation scenario of two seperate
+ * Prepare for worst case allocation scenario of two separate
* extents.
*/
if (alloc == 2)
{
/*00*/ __u32 curr_master;
__u8 file_lock;
- __u8 compat_pad[3]; /* Not in orignal definition. Used to
+ __u8 compat_pad[3]; /* Not in original definition. Used to
make the already existing alignment
explicit */
__u64 last_write_time;
* sync-data inodes."
*
* Note: OCFS2 already does this differently for metadata vs data
- * allocations, as those bitmaps are seperate and undo access is never
+ * allocations, as those bitmaps are separate and undo access is never
* called on a metadata group descriptor.
*/
static int ocfs2_test_bg_bit_allocatable(struct buffer_head *bg_bh,
/* If we don't have cached information on this bitmap block, we're
* going to have to load it later anyway. Loading it here allows us
- * to make a better decision. This favors long-term performace gain
+ * to make a better decision. This favors long-term performance gain
* with a better on-disk layout vs. a short term gain of skipping the
* read and potentially having a bad placement. */
if (info->free_count == UINT_MAX) {
/*
* Relocation based on dirid, hashing them into a given bitmap block
- * files. Formatted nodes are unaffected, a seperate policy covers them
+ * files. Formatted nodes are unaffected, a separate policy covers them
*/
static void dirid_groups(reiserfs_blocknr_hint_t * hint)
{
/*
* Relocation based on oid, hashing them into a given bitmap block
- * files. Formatted nodes are unaffected, a seperate policy covers them
+ * files. Formatted nodes are unaffected, a separate policy covers them
*/
static void oid_groups(reiserfs_blocknr_hint_t * hint)
{
BUILD_BUG_ON(sizeof(struct signalfd_siginfo) != 128);
/*
- * Unused memebers should be zero ...
+ * Unused members should be zero ...
*/
err = __clear_user(uinfo, sizeof(*uinfo));
#endif
/*
- * ACPI Memory managment
+ * ACPI Memory management
*/
void *acpi_allocate(u32 size);
/* Limit Interface */
struct acpi_processor_lx {
- int px; /* performace state */
+ int px; /* performance state */
int tx; /* throttle level */
};
#define UICR1_IM14 (1 << 6) /* Interrupt mask ep 14 */
#define UICR1_IM15 (1 << 7) /* Interrupt mask ep 15 */
-#define USIR0_IR0 (1 << 0) /* Interrup request ep 0 */
-#define USIR0_IR1 (1 << 1) /* Interrup request ep 1 */
-#define USIR0_IR2 (1 << 2) /* Interrup request ep 2 */
-#define USIR0_IR3 (1 << 3) /* Interrup request ep 3 */
-#define USIR0_IR4 (1 << 4) /* Interrup request ep 4 */
-#define USIR0_IR5 (1 << 5) /* Interrup request ep 5 */
-#define USIR0_IR6 (1 << 6) /* Interrup request ep 6 */
-#define USIR0_IR7 (1 << 7) /* Interrup request ep 7 */
-
-#define USIR1_IR8 (1 << 0) /* Interrup request ep 8 */
-#define USIR1_IR9 (1 << 1) /* Interrup request ep 9 */
-#define USIR1_IR10 (1 << 2) /* Interrup request ep 10 */
-#define USIR1_IR11 (1 << 3) /* Interrup request ep 11 */
-#define USIR1_IR12 (1 << 4) /* Interrup request ep 12 */
-#define USIR1_IR13 (1 << 5) /* Interrup request ep 13 */
-#define USIR1_IR14 (1 << 6) /* Interrup request ep 14 */
-#define USIR1_IR15 (1 << 7) /* Interrup request ep 15 */
+#define USIR0_IR0 (1 << 0) /* Interrupt request ep 0 */
+#define USIR0_IR1 (1 << 1) /* Interrupt request ep 1 */
+#define USIR0_IR2 (1 << 2) /* Interrupt request ep 2 */
+#define USIR0_IR3 (1 << 3) /* Interrupt request ep 3 */
+#define USIR0_IR4 (1 << 4) /* Interrupt request ep 4 */
+#define USIR0_IR5 (1 << 5) /* Interrupt request ep 5 */
+#define USIR0_IR6 (1 << 6) /* Interrupt request ep 6 */
+#define USIR0_IR7 (1 << 7) /* Interrupt request ep 7 */
+
+#define USIR1_IR8 (1 << 0) /* Interrupt request ep 8 */
+#define USIR1_IR9 (1 << 1) /* Interrupt request ep 9 */
+#define USIR1_IR10 (1 << 2) /* Interrupt request ep 10 */
+#define USIR1_IR11 (1 << 3) /* Interrupt request ep 11 */
+#define USIR1_IR12 (1 << 4) /* Interrupt request ep 12 */
+#define USIR1_IR13 (1 << 5) /* Interrupt request ep 13 */
+#define USIR1_IR14 (1 << 6) /* Interrupt request ep 14 */
+#define USIR1_IR15 (1 << 7) /* Interrupt request ep 15 */
#define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */
#define USIR0 __REG(0x40600058) /* UDC Status Interrupt Register 0 */
-#define USIR0_IR0 (1 << 0) /* Interrup request ep 0 */
-#define USIR0_IR1 (1 << 1) /* Interrup request ep 1 */
-#define USIR0_IR2 (1 << 2) /* Interrup request ep 2 */
-#define USIR0_IR3 (1 << 3) /* Interrup request ep 3 */
-#define USIR0_IR4 (1 << 4) /* Interrup request ep 4 */
-#define USIR0_IR5 (1 << 5) /* Interrup request ep 5 */
-#define USIR0_IR6 (1 << 6) /* Interrup request ep 6 */
-#define USIR0_IR7 (1 << 7) /* Interrup request ep 7 */
+#define USIR0_IR0 (1 << 0) /* Interrupt request ep 0 */
+#define USIR0_IR1 (1 << 1) /* Interrupt request ep 1 */
+#define USIR0_IR2 (1 << 2) /* Interrupt request ep 2 */
+#define USIR0_IR3 (1 << 3) /* Interrupt request ep 3 */
+#define USIR0_IR4 (1 << 4) /* Interrupt request ep 4 */
+#define USIR0_IR5 (1 << 5) /* Interrupt request ep 5 */
+#define USIR0_IR6 (1 << 6) /* Interrupt request ep 6 */
+#define USIR0_IR7 (1 << 7) /* Interrupt request ep 7 */
#define USIR1 __REG(0x4060005C) /* UDC Status Interrupt Register 1 */
-#define USIR1_IR8 (1 << 0) /* Interrup request ep 8 */
-#define USIR1_IR9 (1 << 1) /* Interrup request ep 9 */
-#define USIR1_IR10 (1 << 2) /* Interrup request ep 10 */
-#define USIR1_IR11 (1 << 3) /* Interrup request ep 11 */
-#define USIR1_IR12 (1 << 4) /* Interrup request ep 12 */
-#define USIR1_IR13 (1 << 5) /* Interrup request ep 13 */
-#define USIR1_IR14 (1 << 6) /* Interrup request ep 14 */
-#define USIR1_IR15 (1 << 7) /* Interrup request ep 15 */
+#define USIR1_IR8 (1 << 0) /* Interrupt request ep 8 */
+#define USIR1_IR9 (1 << 1) /* Interrupt request ep 9 */
+#define USIR1_IR10 (1 << 2) /* Interrupt request ep 10 */
+#define USIR1_IR11 (1 << 3) /* Interrupt request ep 11 */
+#define USIR1_IR12 (1 << 4) /* Interrupt request ep 12 */
+#define USIR1_IR13 (1 << 5) /* Interrupt request ep 13 */
+#define USIR1_IR14 (1 << 6) /* Interrupt request ep 14 */
+#define USIR1_IR15 (1 << 7) /* Interrupt request ep 15 */
#elif defined(CONFIG_PXA27x)
#define ICSR0 __REG(0x40800014) /* ICP Status Register 0 */
#define ICSR1 __REG(0x40800018) /* ICP Status Register 1 */
-#define ICCR0_AME (1 << 7) /* Adress match enable */
+#define ICCR0_AME (1 << 7) /* Address match enable */
#define ICCR0_TIE (1 << 6) /* Transmit FIFO interrupt enable */
#define ICCR0_RIE (1 << 5) /* Recieve FIFO interrupt enable */
#define ICCR0_RXE (1 << 4) /* Receive enable */
#include <asm/arch/platform.h>
/*
- * IRQ interrupts definitions are the same the INT definitions
+ * IRQ interrupts definitions are the same as the INT definitions
* held within platform.h
*/
#define IRQ_VIC_START 0
#define IRQMASK_VICSOURCE31 INTMASK_VICSOURCE31
/*
- * FIQ interrupts definitions are the same the INT definitions.
+ * FIQ interrupts definitions are the same as the INT definitions.
*/
#define FIQ_WDOGINT INT_WDOGINT
#define FIQ_SOFTINT INT_SOFTINT
#define IT8152_GPIO_GPDR __REG_IT8152(0x3f00500)
/*
- Interrup contoler per register summary:
+ Interrupt controller per register summary:
---------------------------------------
LCDNIRR:
IT8152_LD_IRQ(8) PCICLK stop
#define PXA2XX_UDC_CMD_DISCONNECT 1 /* so host won't see us */
/* Boards following the design guidelines in the developer's manual,
- * with on-chip GPIOs not Lubbock's wierd hardware, can have a sane
+ * with on-chip GPIOs not Lubbock's weird hardware, can have a sane
* VBUS IRQ and omit the methods above. Store the GPIO number
* here; for GPIO 0, also mask in one of the pxa_gpio_mode() bits.
* Note that sometimes the signals go through inverters...
/* atomic.h: atomic operation emulation for FR-V
*
* For an explanation of how atomic ops work in this arch, see:
- * Documentation/fujitsu/frv/atomic-ops.txt
+ * Documentation/frv/atomic-ops.txt
*
* Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
/* bitops.h: bit operations for the Fujitsu FR-V CPUs
*
* For an explanation of how atomic ops work in this arch, see:
- * Documentation/fujitsu/frv/atomic-ops.txt
+ * Documentation/frv/atomic-ops.txt
*
* Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
#define flush_dcache_mmap_unlock(mapping) do {} while(0)
/*
- * physically-indexed cache managment
+ * physically-indexed cache management
* - see arch/frv/lib/cache.S
*/
extern void frv_dcache_writeback(unsigned long start, unsigned long size);
* Written by David Howells (dhowells@redhat.com)
* - Derived from include/asm-i386/highmem.h
*
- * See Documentation/fujitsu/frv/mmu-layout.txt for more information.
+ * See Documentation/frv/mmu-layout.txt for more information.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#ifdef CONFIG_MMU
-/* see Documentation/fujitsu/frv/mmu-layout.txt */
+/* see Documentation/frv/mmu-layout.txt */
#define KERNEL_LOWMEM_START __UL(0xc0000000)
#define KERNEL_LOWMEM_END __UL(0xd0000000)
#define VMALLOC_START __UL(0xd0000000)
/*
* we use 2-level page tables, folding the PMD (mid-level table) into the PGE (top-level entry)
- * [see Documentation/fujitsu/frv/mmu-layout.txt]
+ * [see Documentation/frv/mmu-layout.txt]
*
* Page Directory:
* - Size: 16KB
static inline unsigned char rtc_is_updating(void)
{
unsigned char uip;
+ unsigned long flags;
- spin_lock_irq(&rtc_lock);
+ spin_lock_irqsave(&rtc_lock, flags);
uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
- spin_unlock_irq(&rtc_lock);
+ spin_unlock_irqrestore(&rtc_lock, flags);
return uip;
}
{
unsigned long uip_watchdog = jiffies;
unsigned char ctrl;
+ unsigned long flags;
+
#ifdef CONFIG_MACH_DECSTATION
unsigned int real_year;
#endif
* RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
* by the RTC when initially set to a non-zero value.
*/
- spin_lock_irq(&rtc_lock);
+ spin_lock_irqsave(&rtc_lock, flags);
time->tm_sec = CMOS_READ(RTC_SECONDS);
time->tm_min = CMOS_READ(RTC_MINUTES);
time->tm_hour = CMOS_READ(RTC_HOURS);
real_year = CMOS_READ(RTC_DEC_YEAR);
#endif
ctrl = CMOS_READ(RTC_CONTROL);
- spin_unlock_irq(&rtc_lock);
+ spin_unlock_irqrestore(&rtc_lock, flags);
if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
{
#define _ASM_GENERIC__TLB_H
#include <linux/swap.h>
-#include <linux/quicklist.h>
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
/*
* A pointer passed in from user mode. This should not be used for syscall parameters,
* just declare them as pointers because the syscall entry code will have appropriately
- * comverted them already.
+ * converted them already.
*/
typedef u32 compat_uptr_t;
* tmp = __swab32(*(p++));
* tmp |= ~0UL >> (32-offset);
*
- * but this would decrease preformance, so we change the
+ * but this would decrease performance, so we change the
* shift:
*/
tmp = *(p++);
#define CICR_SCC_SCC3 ((uint)0x00200000) /* SCC3 @ SCCc */
#define CICR_SCB_SCC2 ((uint)0x00040000) /* SCC2 @ SCCb */
#define CICR_SCA_SCC1 ((uint)0x00000000) /* SCC1 @ SCCa */
-#define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrrupt */
+#define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrupt */
#define CICR_HP_MASK ((uint)0x00001f00) /* Hi-pri int. */
#define CICR_IEN ((uint)0x00000080) /* Int. enable */
#define CICR_SPS ((uint)0x00000001) /* SCC Spread */
/*
* Moved the udelay() function into library code, no longer inlined.
* I had to change the algorithm because we are overflowing now on
- * the faster ColdFire parts. The code is a little biger, so it makes
+ * the faster ColdFire parts. The code is a little bigger, so it makes
* sense to library it.
*/
extern void udelay(unsigned long usecs);
#define MCFSIM_CSAR1 0x8c /* CS 1 Address reg (r/w) */
#define MCFSIM_CSMR1 0x90 /* CS 1 Mask reg (r/w) */
#define MCFSIM_CSCR1 0x96 /* CS 1 Control reg (r/w) */
-#define MCFSIM_CSAR2 0x98 /* CS 2 Adress reg (r/w) */
+#define MCFSIM_CSAR2 0x98 /* CS 2 Address reg (r/w) */
#define MCFSIM_CSMR2 0x9c /* CS 2 Mask reg (r/w) */
#define MCFSIM_CSCR2 0xa2 /* CS 2 Control reg (r/w) */
-#define MCFSIM_CSAR3 0xa4 /* CS 3 Adress reg (r/w) */
+#define MCFSIM_CSAR3 0xa4 /* CS 3 Address reg (r/w) */
#define MCFSIM_CSMR3 0xa8 /* CS 3 Mask reg (r/w) */
#define MCFSIM_CSCR3 0xae /* CS 3 Control reg (r/w) */
#define MCFSIM_CSMR7 0xda /* CS 7 Mask reg (r/w) */
#define MCFSIM_CSCR7 0xde /* CS 7 Control reg (r/w) */
#else
-#define MCFSIM_CSAR2 0x98 /* CS 2 Adress reg (r/w) */
+#define MCFSIM_CSAR2 0x98 /* CS 2 Address reg (r/w) */
#define MCFSIM_CSMR2 0x9c /* CS 2 Mask reg (r/w) */
#define MCFSIM_CSCR2 0xa2 /* CS 2 Control reg (r/w) */
-#define MCFSIM_CSAR3 0xa4 /* CS 3 Adress reg (r/w) */
+#define MCFSIM_CSAR3 0xa4 /* CS 3 Address reg (r/w) */
#define MCFSIM_CSMR3 0xa8 /* CS 3 Mask reg (r/w) */
#define MCFSIM_CSCR3 0xae /* CS 3 Control reg (r/w) */
-#define MCFSIM_CSAR4 0xb0 /* CS 4 Adress reg (r/w) */
+#define MCFSIM_CSAR4 0xb0 /* CS 4 Address reg (r/w) */
#define MCFSIM_CSMR4 0xb4 /* CS 4 Mask reg (r/w) */
#define MCFSIM_CSCR4 0xba /* CS 4 Control reg (r/w) */
-#define MCFSIM_CSAR5 0xbc /* CS 5 Adress reg (r/w) */
+#define MCFSIM_CSAR5 0xbc /* CS 5 Address reg (r/w) */
#define MCFSIM_CSMR5 0xc0 /* CS 5 Mask reg (r/w) */
#define MCFSIM_CSCR5 0xc6 /* CS 5 Control reg (r/w) */
-#define MCFSIM_CSAR6 0xc8 /* CS 6 Adress reg (r/w) */
+#define MCFSIM_CSAR6 0xc8 /* CS 6 Address reg (r/w) */
#define MCFSIM_CSMR6 0xcc /* CS 6 Mask reg (r/w) */
#define MCFSIM_CSCR6 0xd2 /* CS 6 Control reg (r/w) */
-#define MCFSIM_CSAR7 0xd4 /* CS 7 Adress reg (r/w) */
+#define MCFSIM_CSAR7 0xd4 /* CS 7 Address reg (r/w) */
#define MCFSIM_CSMR7 0xd8 /* CS 7 Mask reg (r/w) */
#define MCFSIM_CSCR7 0xde /* CS 7 Control reg (r/w) */
#endif /* CONFIG_OLDMASK */
#define MCFSIM_CSMR1 0x90 /* CS 1 Mask reg (r/w) */
#define MCFSIM_CSCR1 0x96 /* CS 1 Control reg (r/w) */
-#define MCFSIM_CSAR2 0x98 /* CS 2 Adress reg (r/w) */
+#define MCFSIM_CSAR2 0x98 /* CS 2 Address reg (r/w) */
#define MCFSIM_CSMR2 0x9c /* CS 2 Mask reg (r/w) */
#define MCFSIM_CSCR2 0xa2 /* CS 2 Control reg (r/w) */
-#define MCFSIM_CSAR3 0xa4 /* CS 3 Adress reg (r/w) */
+#define MCFSIM_CSAR3 0xa4 /* CS 3 Address reg (r/w) */
#define MCFSIM_CSMR3 0xa8 /* CS 3 Mask reg (r/w) */
#define MCFSIM_CSCR3 0xae /* CS 3 Control reg (r/w) */
-#define MCFSIM_CSAR4 0xb0 /* CS 4 Adress reg (r/w) */
+#define MCFSIM_CSAR4 0xb0 /* CS 4 Address reg (r/w) */
#define MCFSIM_CSMR4 0xb4 /* CS 4 Mask reg (r/w) */
#define MCFSIM_CSCR4 0xba /* CS 4 Control reg (r/w) */
-#define MCFSIM_CSAR5 0xbc /* CS 5 Adress reg (r/w) */
+#define MCFSIM_CSAR5 0xbc /* CS 5 Address reg (r/w) */
#define MCFSIM_CSMR5 0xc0 /* CS 5 Mask reg (r/w) */
#define MCFSIM_CSCR5 0xc6 /* CS 5 Control reg (r/w) */
-#define MCFSIM_CSAR6 0xc8 /* CS 6 Adress reg (r/w) */
+#define MCFSIM_CSAR6 0xc8 /* CS 6 Address reg (r/w) */
#define MCFSIM_CSMR6 0xcc /* CS 6 Mask reg (r/w) */
#define MCFSIM_CSCR6 0xd2 /* CS 6 Control reg (r/w) */
-#define MCFSIM_CSAR7 0xd4 /* CS 7 Adress reg (r/w) */
+#define MCFSIM_CSAR7 0xd4 /* CS 7 Address reg (r/w) */
#define MCFSIM_CSMR7 0xd8 /* CS 7 Mask reg (r/w) */
#define MCFSIM_CSCR7 0xde /* CS 7 Control reg (r/w) */
#define CICR_SCC_SCC3 ((uint)0x00200000) /* SCC3 @ SCCc */
#define CICR_SCD_SCC4 ((uint)0x00c00000) /* SCC4 @ SCCd */
-#define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrrupt */
+#define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrupt */
#define CICR_HP_MASK ((uint)0x00001f00) /* Hi-pri int. */
#define CICR_VBA_MASK ((uint)0x000000e0) /* Vector Base Address */
#define CICR_SPS ((uint)0x00000001) /* SCC Spread */
#define MCFUART_UTB 0x0c /* Transmit Buffer (w) */
#define MCFUART_UIPCR 0x10 /* Input Port Change (r) */
#define MCFUART_UACR 0x10 /* Auxiliary Control (w) */
-#define MCFUART_UISR 0x14 /* Interrup Status (r) */
+#define MCFUART_UISR 0x14 /* Interrupt Status (r) */
#define MCFUART_UIMR 0x14 /* Interrupt Mask (w) */
#define MCFUART_UBG1 0x18 /* Baud Rate MSB (r/w) */
#define MCFUART_UBG2 0x1c /* Baud Rate LSB (r/w) */
* A pointer passed in from user mode. This should not
* be used for syscall parameters, just declare them
* as pointers because the syscall entry code will have
- * appropriately comverted them already.
+ * appropriately converted them already.
*/
typedef u32 compat_uptr_t;
/**
- * Adress alignment of the individual FPGA bytes.
+ * Address alignment of the individual FPGA bytes.
* The address arrangement of the individual bytes of the FPGA is two
* byte aligned at the embedded MK2 platform.
*/
#define GT_PCI_IO_SIZE 0x02000000UL
/*
- * PCI interrupts will come in on either the INTA or INTD interrups lines,
+ * PCI interrupts will come in on either the INTA or INTD interrupt lines,
* which are mapped to the #2 and #5 interrupt pins of the MIPS. On our
* boards, they all either come in on IntD or they all come in on IntA, they
* aren't mixed. There can be numerous PCI interrupts, so we keep a list of the
/*
* These are the virtual IRQ numbers, we divide all IRQ's into
* 'spaces', the 'space' determines where and how to enable/disable
- * that particular IRQ on an SGI machine. HPC DMA and MC DMA interrups
+ * that particular IRQ on an SGI machine. HPC DMA and MC DMA interrupts
* are not supported this way. Driver is supposed to allocate HPC/MC
* interrupt as shareable and then look to proper status bit (see
* HAL2 driver). This will prevent many complications, trust me ;-)
#define IIO_IFDR 0x400398 /* IOQ FIFO Depth */
#define IIO_IIAP 0x4003a0 /* IIQ Arbitration Parameters */
#define IIO_IMMR IIO_IIAP
-#define IIO_ICMR 0x4003a8 /* CRB Managment Register */
+#define IIO_ICMR 0x4003a8 /* CRB Management Register */
#define IIO_ICCR 0x4003b0 /* CRB Control Register */
#define IIO_ICTO 0x4003b8 /* CRB Time Out Register */
#define IIO_ICTP 0x4003c0 /* CRB Time Out Prescalar */
* A pointer passed in from user mode. This should not
* be used for syscall parameters, just declare them
* as pointers because the syscall entry code will have
- * appropriately comverted them already.
+ * appropriately converted them already.
*/
typedef u32 compat_uptr_t;
#define EFA_PARISC_1_1 0x0210 /* PA-RISC 1.1 big-endian. */
#define EFA_PARISC_2_0 0x0214 /* PA-RISC 2.0 big-endian. */
-/* Additional section indeces. */
+/* Additional section indices. */
#define SHN_PARISC_ANSI_COMMON 0xff00 /* Section for tenatively declared
symbols in ANSI C. */
/*
* In parisc assembly a semicolon marks a comment while a
- * exclamation mark is used to seperate independent lines.
+ * exclamation mark is used to separate independent lines.
*/
#ifdef __ASSEMBLY__
/* nothing */
-#endif __ASM_PARISC_VGA_H__
+#endif /* __ASM_PARISC_VGA_H__ */
* A pointer passed in from user mode. This should not
* be used for syscall parameters, just declare them
* as pointers because the syscall entry code will have
- * appropriately comverted them already.
+ * appropriately converted them already.
*/
typedef u32 compat_uptr_t;
* A pointer passed in from user mode. This should not
* be used for syscall parameters, just declare them
* as pointers because the syscall entry code will have
- * appropriately comverted them already.
+ * appropriately converted them already.
*/
typedef u32 compat_uptr_t;
* A pointer passed in from user mode. This should not
* be used for syscall parameters, just declare them
* as pointers because the syscall entry code will have
- * appropriately comverted them already.
+ * appropriately converted them already.
*/
typedef u32 compat_uptr_t;
#endif /* CONFIG_X86_32 */
+/* Exception table entry */
+# define _ASM_EXTABLE(from,to) \
+ " .section __ex_table,\"a\"\n" \
+ _ASM_ALIGN "\n" \
+ _ASM_PTR #from "," #to "\n" \
+ " .previous\n"
+
#endif /* _ASM_X86_ASM_H */
#define _ASM_X86_BUGS_H
extern void check_bugs(void);
-extern int ppro_with_ram_bug(void);
+int ppro_with_ram_bug(void);
#endif /* _ASM_X86_BUGS_H */
* A pointer passed in from user mode. This should not
* be used for syscall parameters, just declare them
* as pointers because the syscall entry code will have
- * appropriately comverted them already.
+ * appropriately converted them already.
*/
typedef u32 compat_uptr_t;
#ifndef _ASM_X86_CPUFEATURE_H
#define _ASM_X86_CPUFEATURE_H
-#ifndef __ASSEMBLY__
-#include <linux/bitops.h>
-#endif
#include <asm/required-features.h>
#define NCAPINTS 8 /* N 32-bit words worth of info */
#define X86_FEATURE_MP (1*32+19) /* MP Capable. */
#define X86_FEATURE_NX (1*32+20) /* Execute Disable */
#define X86_FEATURE_MMXEXT (1*32+22) /* AMD MMX extensions */
+#define X86_FEATURE_GBPAGES (1*32+26) /* GB pages */
#define X86_FEATURE_RDTSCP (1*32+27) /* RDTSCP */
#define X86_FEATURE_LM (1*32+29) /* Long Mode (x86-64) */
#define X86_FEATURE_3DNOWEXT (1*32+30) /* AMD 3DNow! extensions */
*/
#define X86_FEATURE_IDA (7*32+ 0) /* Intel Dynamic Acceleration */
+#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
+
+#include <linux/bitops.h>
+
+extern const char * const x86_cap_flags[NCAPINTS*32];
+extern const char * const x86_power_flags[32];
+
#define cpu_has(c, bit) \
(__builtin_constant_p(bit) && \
( (((bit)>>5)==0 && (1UL<<((bit)&31) & REQUIRED_MASK0)) || \
#define cpu_has_pebs boot_cpu_has(X86_FEATURE_PEBS)
#define cpu_has_clflush boot_cpu_has(X86_FEATURE_CLFLSH)
#define cpu_has_bts boot_cpu_has(X86_FEATURE_BTS)
+#define cpu_has_gbpages boot_cpu_has(X86_FEATURE_GBPAGES)
#if defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_64)
# define cpu_has_invlpg 1
#endif /* CONFIG_X86_64 */
+#endif /* defined(__KERNEL__) && !defined(__ASSEMBLY__) */
+
#endif /* _ASM_X86_CPUFEATURE_H */
#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \
efi_call_virt(f, a1, a2, a3, a4, a5, a6)
-#define efi_ioremap(addr, size) ioremap(addr, size)
+#define efi_ioremap(addr, size) ioremap_cache(addr, size)
#else /* !CONFIG_X86_32 */
efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
(u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
-extern void *efi_ioremap(unsigned long offset, unsigned long size);
+extern void *efi_ioremap(unsigned long addr, unsigned long size);
#endif /* CONFIG_X86_32 */
"2: .section .fixup,\"ax\"\n \
3: mov %3, %1\n \
jmp 2b\n \
- .previous\n \
- .section __ex_table,\"a\"\n \
- .align 8\n" \
- _ASM_PTR "1b,3b\n \
- .previous" \
+ .previous\n" \
+ _ASM_EXTABLE(1b,3b) \
: "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
: "i" (-EFAULT), "0" (oparg), "1" (0))
3: .section .fixup,\"ax\"\n \
4: mov %5, %1\n \
jmp 3b\n \
- .previous\n \
- .section __ex_table,\"a\"\n \
- .align 8\n" \
- _ASM_PTR "1b,4b,2b,4b\n \
- .previous" \
+ .previous\n" \
+ _ASM_EXTABLE(1b,4b) \
+ _ASM_EXTABLE(2b,4b) \
: "=&a" (oldval), "=&r" (ret), "+m" (*uaddr), \
"=&r" (tem) \
: "r" (oparg), "i" (-EFAULT), "1" (0))
return -EFAULT;
__asm__ __volatile__(
-
"1: lock; cmpxchgl %3, %1 \n"
"2: .section .fixup, \"ax\" \n"
"3: mov %2, %0 \n"
" jmp 2b \n"
" .previous \n"
-
- " .section __ex_table, \"a\" \n"
- " .align 8 \n"
- _ASM_PTR " 1b,3b \n"
- " .previous \n"
-
+ _ASM_EXTABLE(1b,3b)
: "=a" (oldval), "+m" (*uaddr)
: "i" (-EFAULT), "r" (newval), "0" (oldval)
: "memory"
#define PKMAP_NR(virt) ((virt-PKMAP_BASE) >> PAGE_SHIFT)
#define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT))
-extern void * FASTCALL(kmap_high(struct page *page));
-extern void FASTCALL(kunmap_high(struct page *page));
+extern void *kmap_high(struct page *page);
+extern void kunmap_high(struct page *page);
void *kmap(struct page *page);
void kunmap(struct page *page);
int i8259A_irq_pending(unsigned int irq);
void make_8259A_irq(unsigned int irq);
void init_8259A(int aeoi);
-void FASTCALL(send_IPI_self(int vector));
+void send_IPI_self(int vector);
void init_VISWS_APIC_irqs(void);
void setup_IO_APIC(void);
void disable_IO_APIC(void);
#include <linux/sched.h>
#include <linux/kernel_stat.h>
#include <linux/regset.h>
+#include <asm/asm.h>
#include <asm/processor.h>
#include <asm/sigcontext.h>
#include <asm/user.h>
{
asm volatile("1: fwait\n"
"2:\n"
- " .section __ex_table,\"a\"\n"
- " .align 8\n"
- " .quad 1b,2b\n"
- " .previous\n");
+ _ASM_EXTABLE(1b,2b));
}
static inline int restore_fpu_checking(struct i387_fxsave_struct *fx)
"3: movl $-1,%[err]\n"
" jmp 2b\n"
".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 8\n"
- " .quad 1b,3b\n"
- ".previous"
+ _ASM_EXTABLE(1b,3b)
: [err] "=r" (err)
#if 0 /* See comment in __save_init_fpu() below. */
: [fx] "r" (fx), "m" (*fx), "0" (0));
"3: movl $-1,%[err]\n"
" jmp 2b\n"
".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 8\n"
- " .quad 1b,3b\n"
- ".previous"
+ _ASM_EXTABLE(1b,3b)
: [err] "=r" (err), "=m" (*fx)
#if 0 /* See comment in __fxsave_clear() below. */
: [fx] "r" (fx), "0" (0));
#endif
-#ifdef CONFIG_X86_NUMAQ
-extern void *xquad_portio; /* Where the IO area was mapped */
-#define XQUAD_PORT_ADDR(port, quad) (xquad_portio + (XQUAD_PORTIO_QUAD*quad) + port)
-#define __BUILDIO(bwl,bw,type) \
-static inline void out##bwl##_quad(unsigned type value, int port, int quad) { \
- if (xquad_portio) \
- write##bwl(value, XQUAD_PORT_ADDR(port, quad)); \
- else \
- out##bwl##_local(value, port); \
-} \
-static inline void out##bwl(unsigned type value, int port) { \
- out##bwl##_quad(value, port, 0); \
-} \
-static inline unsigned type in##bwl##_quad(int port, int quad) { \
- if (xquad_portio) \
- return read##bwl(XQUAD_PORT_ADDR(port, quad)); \
- else \
- return in##bwl##_local(port); \
-} \
-static inline unsigned type in##bwl(int port) { \
- return in##bwl##_quad(port, 0); \
-}
-#else
#define __BUILDIO(bwl,bw,type) \
static inline void out##bwl(unsigned type value, int port) { \
out##bwl##_local(value, port); \
static inline unsigned type in##bwl(int port) { \
return in##bwl##_local(port); \
}
-#endif
-
#define BUILDIO(bwl,bw,type) \
static inline void out##bwl##_local(unsigned type value, int port) { \
return logical_apicid;
}
+extern void *xquad_portio;
+
static inline void setup_portio_remap(void)
{
int num_quads = num_online_nodes();
/**
* do_timer_interrupt_hook - hook into timer tick
- * @regs: standard registers from interrupt
*
* Call the pit clock event handler. see asm/i8253.h
**/
".section .fixup,\"ax\"\n\t"
"3: mov %3,%0 ; jmp 1b\n\t"
".previous\n\t"
- ".section __ex_table,\"a\"\n"
- _ASM_ALIGN "\n\t"
- _ASM_PTR " 2b,3b\n\t"
- ".previous"
+ _ASM_EXTABLE(2b,3b)
: "=r" (*err), EAX_EDX_RET(val, low, high)
: "c" (msr), "i" (-EFAULT));
return EAX_EDX_VAL(val, low, high);
".section .fixup,\"ax\"\n\t"
"3: mov %4,%0 ; jmp 1b\n\t"
".previous\n\t"
- ".section __ex_table,\"a\"\n"
- _ASM_ALIGN "\n\t"
- _ASM_PTR " 2b,3b\n\t"
- ".previous"
+ _ASM_EXTABLE(2b,3b)
: "=a" (err)
: "c" (msr), "0" (low), "d" (high),
"i" (-EFAULT));
#define PHYSICAL_PAGE_MASK (PAGE_MASK & __PHYSICAL_MASK)
#define PTE_MASK (_AT(long, PHYSICAL_PAGE_MASK))
-#define LARGE_PAGE_SIZE (_AC(1,UL) << PMD_SHIFT)
-#define LARGE_PAGE_MASK (~(LARGE_PAGE_SIZE-1))
+#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
+#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
#define HPAGE_SHIFT PMD_SHIFT
#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
#define MCE_STACK 5
#define N_EXCEPTION_STACKS 5 /* hw limit: 7 */
+#define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT)
+#define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1))
+
#define __PAGE_OFFSET _AC(0xffff810000000000, UL)
#define __PHYSICAL_START CONFIG_PHYSICAL_START
set_pud(pudp, __pud(__pa(pmd) | _PAGE_PRESENT));
/*
- * Pentium-II erratum A13: in PAE mode we explicitly have to flush
- * the TLB via cr3 if the top-level pgd is changed...
+ * According to Intel App note "TLBs, Paging-Structure Caches,
+ * and Their Invalidation", April 2007, document 317080-001,
+ * section 8.1: in PAE mode we explicitly have to flush the
+ * TLB via cr3 if the top-level pgd is changed...
*/
if (mm == current->active_mm)
write_cr3(read_cr3());
static inline void pud_clear(pud_t *pudp)
{
+ unsigned long pgd;
+
set_pud(pudp, __pud(0));
/*
- * In principle we need to do a cr3 reload here to make sure
- * the processor recognizes the changed pgd. In practice, all
- * the places where pud_clear() gets called are followed by
- * full tlb flushes anyway, so we can defer the cost here.
- *
- * Specifically:
- *
- * mm/memory.c:free_pmd_range() - immediately after the
- * pud_clear() it does a pmd_free_tlb(). We change the
- * mmu_gather structure to do a full tlb flush (which has the
- * effect of reloading cr3) when the pagetable free is
- * complete.
+ * According to Intel App note "TLBs, Paging-Structure Caches,
+ * and Their Invalidation", April 2007, document 317080-001,
+ * section 8.1: in PAE mode we explicitly have to flush the
+ * TLB via cr3 if the top-level pgd is changed...
*
- * arch/x86/mm/hugetlbpage.c:huge_pmd_unshare() - the call to
- * this is followed by a flush_tlb_range, which on x86 does a
- * full tlb flush.
+ * Make sure the pud entry we're updating is within the
+ * current pgd to avoid unnecessary TLB flushes.
*/
+ pgd = read_cr3();
+ if (__pa(pudp) >= pgd && __pa(pudp) < (pgd + sizeof(pgd_t)*PTRS_PER_PGD))
+ write_cr3(pgd);
}
#define pud_page(pud) \
#define _PAGE_BIT_DIRTY 6
#define _PAGE_BIT_FILE 6
#define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */
+#define _PAGE_BIT_PAT 7 /* on 4KB pages */
#define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */
#define _PAGE_BIT_UNUSED1 9 /* available for programmer */
#define _PAGE_BIT_UNUSED2 10
#define _PAGE_BIT_UNUSED3 11
+#define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
#define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
/*
#define _PAGE_UNUSED1 (_AC(1, L)<<_PAGE_BIT_UNUSED1)
#define _PAGE_UNUSED2 (_AC(1, L)<<_PAGE_BIT_UNUSED2)
#define _PAGE_UNUSED3 (_AC(1, L)<<_PAGE_BIT_UNUSED3)
+#define _PAGE_PAT (_AC(1, L)<<_PAGE_BIT_PAT)
+#define _PAGE_PAT_LARGE (_AC(1, L)<<_PAGE_BIT_PAT_LARGE)
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
#define _PAGE_NX (_AC(1, ULL) << _PAGE_BIT_NX)
*/
#define pgd_offset_k(address) pgd_offset(&init_mm, address)
+static inline int pud_large(pud_t pud) { return 0; }
+
/*
* the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD]
*
#define swapper_pg_dir init_level4_pgt
extern void paging_init(void);
-extern void clear_kernel_mapping(unsigned long addr, unsigned long size);
#endif /* !__ASSEMBLY__ */
#define pud_offset(pgd, address) ((pud_t *) pgd_page_vaddr(*(pgd)) + pud_index(address))
#define pud_present(pud) (pud_val(pud) & _PAGE_PRESENT)
+static inline int pud_large(pud_t pte)
+{
+ return (pud_val(pte) & (_PAGE_PSE|_PAGE_PRESENT)) ==
+ (_PAGE_PSE|_PAGE_PRESENT);
+}
+
/* PMD - Level 2 access */
#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PTE_MASK))
#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
case 0:
return s;
case 1:
- *(unsigned char *)s = pattern;
+ *(unsigned char *)s = pattern & 0xff;
return s;
case 2:
- *(unsigned short *)s = pattern;
+ *(unsigned short *)s = pattern & 0xffff;
return s;
case 3:
- *(unsigned short *)s = pattern;
- *(2+(unsigned char *)s) = pattern;
+ *(unsigned short *)s = pattern & 0xffff;
+ *(2+(unsigned char *)s) = pattern & 0xff;
return s;
case 4:
*(unsigned long *)s = pattern;
#ifdef CONFIG_X86_32
struct task_struct; /* one of the stranger aspects of C forward declarations */
-extern struct task_struct *FASTCALL(__switch_to(struct task_struct *prev,
- struct task_struct *next));
+struct task_struct *__switch_to(struct task_struct *prev,
+ struct task_struct *next);
/*
* Saving eflags is important. It switches not only IOPL between tasks,
"movl %k1, %%" #seg "\n\t" \
"jmp 2b\n" \
".previous\n" \
- ".section __ex_table,\"a\"\n\t" \
- _ASM_ALIGN "\n\t" \
- _ASM_PTR " 1b,3b\n" \
- ".previous" \
+ _ASM_EXTABLE(1b,3b) \
: :"r" (value), "r" (0))
/* This could fault if %cr4 does not exist. In x86_64, a cr4 always
* exists, so it will never fail. */
#ifdef CONFIG_X86_32
- asm volatile("1: mov %%cr4, %0 \n"
- "2: \n"
- ".section __ex_table,\"a\" \n"
- ".long 1b,2b \n"
- ".previous \n"
- : "=r" (val), "=m" (__force_order) : "0" (0));
+ asm volatile("1: mov %%cr4, %0\n"
+ "2:\n"
+ _ASM_EXTABLE(1b,2b)
+ : "=r" (val), "=m" (__force_order) : "0" (0));
#else
val = native_read_cr4();
#endif
#endif /* __KERNEL__ */
-static inline void clflush(void *__p)
+static inline void clflush(volatile void *__p)
{
- asm volatile("clflush %0" : "+m" (*(char __force *)__p));
+ asm volatile("clflush %0" : "+m" (*(volatile char __force *)__p));
}
#define nop() __asm__ __volatile__ ("nop")
#include <linux/thread_info.h>
#include <linux/prefetch.h>
#include <linux/string.h>
+#include <asm/asm.h>
#include <asm/page.h>
#define VERIFY_READ 0
"4: movl %3,%0\n" \
" jmp 3b\n" \
".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 1b,4b\n" \
- " .long 2b,4b\n" \
- ".previous" \
+ _ASM_EXTABLE(1b,4b) \
+ _ASM_EXTABLE(2b,4b) \
: "=r"(err) \
: "A" (x), "r" (addr), "i"(-EFAULT), "0"(err))
"3: movl %3,%0\n" \
" jmp 2b\n" \
".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 1b,3b\n" \
- ".previous" \
+ _ASM_EXTABLE(1b,3b) \
: "=r"(err) \
: ltype (x), "m"(__m(addr)), "i"(errret), "0"(err))
" xor"itype" %"rtype"1,%"rtype"1\n" \
" jmp 2b\n" \
".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 1b,3b\n" \
- ".previous" \
+ _ASM_EXTABLE(1b,3b) \
: "=r"(err), ltype (x) \
: "m"(__m(addr)), "i"(errret), "0"(err))
"3: mov %3,%0\n" \
" jmp 2b\n" \
".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 8\n" \
- " .quad 1b,3b\n" \
- ".previous" \
+ _ASM_EXTABLE(1b,3b) \
: "=r"(err) \
: ltype (x), "m"(__m(addr)), "i"(errno), "0"(err))
" xor"itype" %"rtype"1,%"rtype"1\n" \
" jmp 2b\n" \
".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 8\n" \
- " .quad 1b,3b\n" \
- ".previous" \
+ _ASM_EXTABLE(1b,3b) \
: "=r"(err), ltype (x) \
: "m"(__m(addr)), "i"(errno), "0"(err))
void handle_vm86_fault(struct kernel_vm86_regs *, long);
int handle_vm86_trap(struct kernel_vm86_regs *, long, int);
+struct pt_regs *save_v86_state(struct kernel_vm86_regs *);
struct task_struct;
void release_vm86_irqs(struct task_struct *);
+++ /dev/null
-/*
- * aspm.h
- *
- * PCI Express ASPM defines and function prototypes
- *
- * Copyright (C) 2007 Intel Corp.
- * Zhang Yanmin (yanmin.zhang@intel.com)
- * Shaohua Li (shaohua.li@intel.com)
- *
- * For more information, please consult the following manuals (look at
- * http://www.pcisig.com/ for how to get them):
- *
- * PCI Express Specification
- */
-
-#ifndef LINUX_ASPM_H
-#define LINUX_ASPM_H
-
-#include <linux/pci.h>
-
-#define PCIE_LINK_STATE_L0S 1
-#define PCIE_LINK_STATE_L1 2
-#define PCIE_LINK_STATE_CLKPM 4
-
-#ifdef CONFIG_PCIEASPM
-extern void pcie_aspm_init_link_state(struct pci_dev *pdev);
-extern void pcie_aspm_exit_link_state(struct pci_dev *pdev);
-extern void pcie_aspm_pm_state_change(struct pci_dev *pdev);
-extern void pci_disable_link_state(struct pci_dev *pdev, int state);
-#else
-#define pcie_aspm_init_link_state(pdev) do {} while (0)
-#define pcie_aspm_exit_link_state(pdev) do {} while (0)
-#define pcie_aspm_pm_state_change(pdev) do {} while (0)
-#define pci_disable_link_state(pdev, state) do {} while (0)
-#endif
-
-#ifdef CONFIG_PCIEASPM_DEBUG /* this depends on CONFIG_PCIEASPM */
-extern void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev);
-extern void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev);
-#else
-#define pcie_aspm_create_sysfs_dev_files(pdev) do {} while (0)
-#define pcie_aspm_remove_sysfs_dev_files(pdev) do {} while (0)
-#endif
-#endif /* LINUX_ASPM_H */
/*
* CHIOGELEM
- * get more detailed status informtion for a single element
+ * get more detailed status information for a single element
*/
struct changer_get_element {
int cge_type; /* type/unit */
__u32 fpga_version; /* FPGA Version Number Register */
__u32 cpu_start; /* CPU start Register (write) */
__u32 cpu_stop; /* CPU stop Register (write) */
- __u32 misc_reg; /* Miscelaneous Register */
+ __u32 misc_reg; /* Miscellaneous Register */
__u32 idt_mode; /* IDT mode Register */
__u32 uart_irq_status; /* UART IRQ status Register */
__u32 clear_timer0_irq; /* Clear timer interrupt Register */
* @n2win - level 2 window (values: 1 thru 7)
* @n3win - level 3 window (values: 1 thru 7)
* @nvc - # of logical channels (values: 1 thru 64)
- * @pktlen - level 3 packet lenght - log base 2 of size
+ * @pktlen - level 3 packet length - log base 2 of size
* @locaddr - my address
* @remaddr - remote address
* @t1 - time, in seconds
__u64 dccps_gsr;
__u64 dccps_gar;
__be32 dccps_service;
+ __u32 dccps_mss_cache;
struct dccp_service_list *dccps_service_list;
__u32 dccps_timestamp_echo;
__u32 dccps_timestamp_time;
__u16 dccps_pcslen;
__u16 dccps_pcrlen;
unsigned long dccps_ndp_count;
- __u32 dccps_mss_cache;
unsigned long dccps_rate_last;
struct dccp_minisock dccps_minisock;
struct dccp_ackvec *dccps_hc_rx_ackvec;
extern void device_destroy(struct class *cls, dev_t devt);
#ifdef CONFIG_PM_SLEEP
extern void destroy_suspended_device(struct class *cls, dev_t devt);
+extern void device_pm_schedule_removal(struct device *);
#else /* !CONFIG_PM_SLEEP */
static inline void destroy_suspended_device(struct class *cls, dev_t devt)
{
device_destroy(cls, devt);
}
+
+static inline void device_pm_schedule_removal(struct device *dev)
+{
+ device_unregister(dev);
+}
#endif /* !CONFIG_PM_SLEEP */
/*
-#ifndef _ASM_LINUX_DMA_MAPPING_H
-#define _ASM_LINUX_DMA_MAPPING_H
+#ifndef _LINUX_DMA_MAPPING_H
+#define _LINUX_DMA_MAPPING_H
#include <linux/device.h>
#include <linux/err.h>
#include <linux/dma-mapping.h>
/**
- * enum dma_state - resource PNP/power managment state
+ * enum dma_state - resource PNP/power management state
* @DMA_RESOURCE_SUSPEND: DMA device going into low power state
* @DMA_RESOURCE_RESUME: DMA device returning to full power
* @DMA_RESOURCE_AVAILABLE: DMA device available to the system
* get_ringparam: Report ring sizes
* set_ringparam: Set ring sizes
* get_pauseparam: Report pause parameters
- * set_pauseparam: Set pause paramters
+ * set_pauseparam: Set pause parameters
* get_rx_csum: Report whether receive checksums are turned on or off
* set_rx_csum: Turn receive checksum on or off
* get_tx_csum: Report whether transmit checksums are turned on or off
struct list_head fl_block; /* circular list of blocked processes */
fl_owner_t fl_owner;
unsigned int fl_pid;
+ struct pid *fl_nspid;
wait_queue_head_t fl_wait;
struct file *fl_file;
unsigned char fl_flags;
* being set. find_inode() uses this to prevent returning
* nearly-dead inodes.
* I_SYNC Similar to I_LOCK, but limited in scope to writeback
- * of inode dirty data. Having a seperate lock for this
+ * of inode dirty data. Having a separate lock for this
* purpose reduces latency and prevents some filesystem-
* specific deadlocks.
*
#define SETFEATURES_EN_RLA 0xAA /* Enable read look-ahead feature */
#define SETFEATURES_PREFETCH 0xAB /* Sets drive prefetch value */
#define SETFEATURES_EN_REST 0xAC /* ATA-1 */
-#define SETFEATURES_4B_RW_LONG 0xBB /* Set Lenght of 4 bytes */
+#define SETFEATURES_4B_RW_LONG 0xBB /* Set Length of 4 bytes */
#define SETFEATURES_DIS_AAM 0xC2 /* Disable Automatic Acoustic Management */
#define SETFEATURES_EN_RPOD 0xCC /* Enable reverting to power on defaults */
#define SETFEATURES_DIS_RI 0xDD /* Disable release interrupt ATAPI */
*/
#define IDE_NICE_DSC_OVERLAP (0) /* per the DSC overlap protocol */
#define IDE_NICE_ATAPI_OVERLAP (1) /* not supported yet */
-#define IDE_NICE_0 (2) /* when sure that it won't affect us */
#define IDE_NICE_1 (3) /* when probably won't affect us much */
+#ifndef __KERNEL__
+#define IDE_NICE_0 (2) /* when sure that it won't affect us */
#define IDE_NICE_2 (4) /* when we know it's on our expense */
+#endif
#endif /* _LINUX_HDREG_H */
* @get_time: function to retrieve the current time of the clock
* @get_softirq_time: function to retrieve the current time from the softirq
* @softirq_time: the time when running the hrtimer queue in the softirq
- * @cb_pending: list of timers where the callback is pending
* @offset: offset of this clock to the monotonic base
* @reprogram: function to reprogram the timer event
*/
#define SATA_NR_PORTS (3) /* 16 possible ?? */
#define SATA_STATUS_OFFSET (0)
-#define SATA_STATUS_REG (HWIF(drive)->sata_scr[SATA_STATUS_OFFSET])
#define SATA_ERROR_OFFSET (1)
-#define SATA_ERROR_REG (HWIF(drive)->sata_scr[SATA_ERROR_OFFSET])
#define SATA_CONTROL_OFFSET (2)
-#define SATA_CONTROL_REG (HWIF(drive)->sata_scr[SATA_CONTROL_OFFSET])
#define SATA_MISC_OFFSET (0)
-#define SATA_MISC_REG (HWIF(drive)->sata_misc[SATA_MISC_OFFSET])
#define SATA_PHY_OFFSET (1)
-#define SATA_PHY_REG (HWIF(drive)->sata_misc[SATA_PHY_OFFSET])
#define SATA_IEN_OFFSET (2)
-#define SATA_IEN_REG (HWIF(drive)->sata_misc[SATA_IEN_OFFSET])
/*
* Our Physical Region Descriptor (PRD) table should be large enough
} hw_regs_t;
struct hwif_s * ide_find_port(unsigned long);
+struct hwif_s *ide_deprecated_find_port(unsigned long);
void ide_init_port_data(struct hwif_s *, unsigned int);
void ide_init_port_hw(struct hwif_s *, hw_regs_t *);
unsigned no_unmask : 1; /* disallow setting unmask bit */
unsigned no_io_32bit : 1; /* disallow enabling 32bit I/O */
unsigned atapi_overlap : 1; /* ATAPI overlap (not supported) */
- unsigned nice0 : 1; /* give obvious excess bandwidth */
- unsigned nice2 : 1; /* give a share in our own bandwidth */
unsigned doorlocking : 1; /* for removable only: door lock/unlock works */
unsigned nodma : 1; /* disallow DMA */
unsigned autotune : 2; /* 0=default, 1=autotune, 2=noautotune */
u8 major; /* our major number */
u8 index; /* 0 for ide0; 1 for ide1; ... */
u8 channel; /* for dual-port chips: 0=primary, 1=secondary */
- u8 straight8; /* Alan's straight 8 check */
u8 bus_state; /* power state of the IDE bus */
u32 host_flags;
#if 0
ide_hwif_ops_t *hwifops;
#else
+ /* host specific initialization of devices on a port */
+ void (*port_init_devs)(struct hwif_s *);
/* routine to program host for PIO mode */
void (*set_pio_mode)(ide_drive_t *, const u8);
/* routine to program host for DMA mode */
u8 (*mdma_filter)(ide_drive_t *);
u8 (*udma_filter)(ide_drive_t *);
+ u8 (*cable_detect)(struct hwif_s *);
+
void (*ata_input_data)(ide_drive_t *, void *, u32);
void (*ata_output_data)(ide_drive_t *, void *, u32);
unsigned serialized : 1; /* serialized all channel operation */
unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */
unsigned reset : 1; /* reset after probe */
- unsigned auto_poll : 1; /* supports nop auto-poll */
unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */
- unsigned no_io_32bit : 1; /* 1 = can not do 32-bit IO ops */
unsigned mmio : 1; /* host uses MMIO */
+ unsigned straight8 : 1; /* Alan's straight 8 check */
struct device gendev;
struct completion gendev_rel_comp; /* To deal with device release() */
typedef ide_startstop_t (ide_handler_t)(ide_drive_t *);
typedef int (ide_expiry_t)(ide_drive_t *);
+/* used by ide-cd, ide-floppy, etc. */
+typedef void (xfer_func_t)(ide_drive_t *, void *, u32);
+
typedef struct hwgroup_s {
/* irq handler, if active */
ide_startstop_t (*handler)(ide_drive_t *);
void proc_ide_create(void);
void proc_ide_destroy(void);
void ide_proc_register_port(ide_hwif_t *);
+void ide_proc_port_register_devices(ide_hwif_t *);
void ide_proc_unregister_port(ide_hwif_t *);
void ide_proc_register_driver(ide_drive_t *, ide_driver_t *);
void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *);
static inline void proc_ide_create(void) { ; }
static inline void proc_ide_destroy(void) { ; }
static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; }
+static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; }
static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; }
static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
extern int system_bus_clock(void);
extern int ide_driveid_update(ide_drive_t *);
-extern int ide_ata66_check(ide_drive_t *, ide_task_t *);
extern int ide_config_drive_speed(ide_drive_t *, u8);
extern u8 eighty_ninty_three (ide_drive_t *);
-extern int set_transfer(ide_drive_t *, ide_task_t *);
extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *);
extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout);
void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, u8 *);
void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
+#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
+void ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *);
+#else
+static inline void ide_hwif_setup_dma(ide_hwif_t *hwif,
+ const struct ide_port_info *d) { }
+#endif
+
extern void default_hwif_iops(ide_hwif_t *);
extern void default_hwif_mmiops(ide_hwif_t *);
extern void default_hwif_transport(ide_hwif_t *);
IDE_HFLAG_NO_SET_MODE = (1 << 9),
/* trust BIOS for programming chipset/device for DMA */
IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10),
- /* host uses VDMA */
+ /* host uses VDMA (tied with IDE_HFLAG_CS5520 for now) */
IDE_HFLAG_VDMA = (1 << 11),
/* ATAPI DMA is unsupported */
IDE_HFLAG_NO_ATAPI_DMA = (1 << 12),
IDE_HFLAG_NO_DMA = (1 << 14),
/* check if host is PCI IDE device before allowing DMA */
IDE_HFLAG_NO_AUTODMA = (1 << 15),
+ /* don't autotune PIO */
+ IDE_HFLAG_NO_AUTOTUNE = (1 << 16),
/* host is CS5510/CS5520 */
- IDE_HFLAG_CS5520 = (1 << 16),
+ IDE_HFLAG_CS5520 = IDE_HFLAG_VDMA,
/* no LBA48 */
IDE_HFLAG_NO_LBA48 = (1 << 17),
/* no LBA48 DMA */
IDE_HFLAG_CLEAR_SIMPLEX = (1 << 28),
/* DSC overlap is unsupported */
IDE_HFLAG_NO_DSC = (1 << 29),
+ /* never use 32-bit I/O ops */
+ IDE_HFLAG_NO_IO_32BIT = (1 << 30),
+ /* never unmask IRQs */
+ IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31),
};
#ifdef CONFIG_BLK_DEV_OFFBOARD
void ide_dma_off(ide_drive_t *);
void ide_dma_on(ide_drive_t *);
int ide_set_dma(ide_drive_t *);
+void ide_check_dma_crc(ide_drive_t *);
ide_startstop_t ide_dma_intr(ide_drive_t *);
int ide_build_sglist(ide_drive_t *, struct request *);
static inline void ide_dma_on(ide_drive_t *drive) { ; }
static inline void ide_dma_verbose(ide_drive_t *drive) { ; }
static inline int ide_set_dma(ide_drive_t *drive) { return 1; }
+static inline void ide_check_dma_crc(ide_drive_t *drive) { ; }
#endif /* CONFIG_BLK_DEV_IDEDMA */
#ifndef CONFIG_BLK_DEV_IDEDMA_PCI
extern void ide_acpi_get_timing(ide_hwif_t *hwif);
extern void ide_acpi_push_timing(ide_hwif_t *hwif);
extern void ide_acpi_init(ide_hwif_t *hwif);
+void ide_acpi_port_init_devices(ide_hwif_t *);
extern void ide_acpi_set_state(ide_hwif_t *hwif, int on);
#else
static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; }
static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; }
static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; }
static inline void ide_acpi_init(ide_hwif_t *hwif) { ; }
+static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; }
static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
#endif
void ide_remove_port_from_hwgroup(ide_hwif_t *);
extern int ide_hwif_request_regions(ide_hwif_t *hwif);
extern void ide_hwif_release_regions(ide_hwif_t* hwif);
-extern void ide_unregister (unsigned int index);
+void ide_unregister(unsigned int, int, int);
void ide_register_region(struct gendisk *);
void ide_unregister_region(struct gendisk *);
void ide_undecoded_slave(ide_drive_t *);
-int ide_device_add_all(u8 *idx);
-int ide_device_add(u8 idx[4]);
+int ide_device_add_all(u8 *idx, const struct ide_port_info *);
+int ide_device_add(u8 idx[4], const struct ide_port_info *);
static inline void *ide_get_hwifdata (ide_hwif_t * hwif)
{
#define IEEE80211_HT_IE_NON_GF_STA_PRSNT 0x0004
#define IEEE80211_HT_IE_NON_HT_STA_PRSNT 0x0010
+/* MIMO Power Save Modes */
+#define WLAN_HT_CAP_MIMO_PS_STATIC 0
+#define WLAN_HT_CAP_MIMO_PS_DYNAMIC 1
+#define WLAN_HT_CAP_MIMO_PS_INVALID 2
+#define WLAN_HT_CAP_MIMO_PS_DISABLED 3
+
/* Authentication algorithms */
#define WLAN_AUTH_OPEN 0
#define WLAN_AUTH_SHARED_KEY 1
#define __REF .section ".ref.text", "ax"
#define __REFDATA .section ".ref.data", "aw"
#define __REFCONST .section ".ref.rodata", "aw"
-/* backward compatibility */
-#define __INIT_REFOK .section __REF
-#define __INITDATA_REFOK .section __REFDATA
#ifndef __ASSEMBLY__
/*
struct lguest_device_desc {
/* The device type: console, network, disk etc. Type 0 terminates. */
__u8 type;
- /* The number of bytes of the config array. */
+ /* The number of virtqueues (first in config array) */
+ __u8 num_vq;
+ /* The number of bytes of feature bits. Multiply by 2: one for host
+ * features and one for guest acknowledgements. */
+ __u8 feature_len;
+ /* The number of bytes of the config array after virtqueues. */
__u8 config_len;
/* A status byte, written by the Guest. */
__u8 status;
};
/*D:135 This is how we expect the device configuration field for a virtqueue
- * (type VIRTIO_CONFIG_F_VIRTQUEUE) to be laid out: */
+ * to be laid out in config space. */
struct lguest_vqconfig {
/* The number of entries in the virtio_ring */
__u16 num;
/* LLC SAP types. */
#define LLC_SAP_NULL 0x00 /* NULL SAP. */
-#define LLC_SAP_LLC 0x02 /* LLC Sublayer Managment. */
+#define LLC_SAP_LLC 0x02 /* LLC Sublayer Management. */
#define LLC_SAP_SNA 0x04 /* SNA Path Control. */
-#define LLC_SAP_PNM 0x0E /* Proway Network Managment. */
+#define LLC_SAP_PNM 0x0E /* Proway Network Management. */
#define LLC_SAP_IP 0x06 /* TCP/IP. */
#define LLC_SAP_BSPAN 0x42 /* Bridge Spanning Tree Proto */
#define LLC_SAP_MMS 0x4E /* Manufacturing Message Srv. */
u32 data[0];
};
-struct pcie_link_state;
/*
* The pci_dev structure is used to describe PCI devices.
*/
this is D0-D3, D0 being fully functional,
and D3 being off. */
-#ifdef CONFIG_PCIEASPM
- struct pcie_link_state *link_state; /* ASPM link state. */
-#endif
-
pci_channel_state_t error_state; /* current connectivity state */
struct device dev; /* Generic device interface */
#define PCI_EXP_DEVSTA_AUXPD 0x10 /* AUX Power Detected */
#define PCI_EXP_DEVSTA_TRPND 0x20 /* Transactions Pending */
#define PCI_EXP_LNKCAP 12 /* Link Capabilities */
-#define PCI_EXP_LNKCAP_ASPMS 0xc00 /* ASPM Support */
-#define PCI_EXP_LNKCAP_L0SEL 0x7000 /* L0s Exit Latency */
-#define PCI_EXP_LNKCAP_L1EL 0x38000 /* L1 Exit Latency */
-#define PCI_EXP_LNKCAP_CLKPM 0x40000 /* L1 Clock Power Management */
#define PCI_EXP_LNKCTL 16 /* Link Control */
-#define PCI_EXP_LNKCTL_RL 0x20 /* Retrain Link */
-#define PCI_EXP_LNKCTL_CCC 0x40 /* Common Clock COnfiguration */
#define PCI_EXP_LNKCTL_CLKREQ_EN 0x100 /* Enable clkreq */
#define PCI_EXP_LNKSTA 18 /* Link Status */
-#define PCI_EXP_LNKSTA_LT 0x800 /* Link Training */
-#define PCI_EXP_LNKSTA_SLC 0x1000 /* Slot Clock Configuration */
#define PCI_EXP_SLTCAP 20 /* Slot Capabilities */
#define PCI_EXP_SLTCTL 24 /* Slot Control */
#define PCI_EXP_SLTSTA 26 /* Slot Status */
/* A lock to ensure that only one thing can read/write
* the MDIO bus at a time */
- spinlock_t mdio_lock;
+ struct mutex mdio_lock;
struct device *dev;
/* Interrupt and Polling infrastructure */
struct work_struct phy_queue;
+ struct work_struct state_queue;
struct timer_list phy_timer;
atomic_t irq_disable;
- spinlock_t lock;
+ struct mutex lock;
struct net_device *attached_dev;
};
/* Functions above this comment are list-based old-style power
- * managment. Please avoid using them. */
+ * management. Please avoid using them. */
/*
* Callbacks for platform drivers to implement.
};
/*
- * Device Managemnt
+ * Device Management
*/
struct pnp_card {
*
* For API usage, in general,
* - any function _modifying_ the tree or tags (inserting or deleting
- * items, setting or clearing tags must exclude other modifications, and
+ * items, setting or clearing tags) must exclude other modifications, and
* exclude any functions reading the tree.
* - any function _reading_ the tree or tags (looking up items or tags,
* gang lookups) must exclude modifications to the tree, but may occur
unsigned long j_trans_id;
unsigned long j_mount_id;
unsigned long j_start; /* start of current waiting commit (index into j_ap_blocks) */
- unsigned long j_len; /* lenght of current waiting commit */
+ unsigned long j_len; /* length of current waiting commit */
unsigned long j_len_alloc; /* number of buffers requested by journal_begin() */
atomic_t j_wcount; /* count of writers for current commit */
unsigned long j_bcount; /* batch count. allows turning X transactions into 1 */
/*
* Pad strcture to 128 bytes. Remember to update the
- * pad size when you add new memebers. We use a fixed
+ * pad size when you add new members. We use a fixed
* size structure to avoid compatibility problems with
* future versions, and we leave extra space for additional
* members. We use fixed size members because this strcture
skb->ip_summed = CHECKSUM_NONE;
}
+bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off);
#endif /* __KERNEL__ */
#endif /* _LINUX_SKBUFF_H */
#include <linux/kobject.h>
struct kmem_cache_cpu {
- void **freelist;
- struct page *page;
- int node;
- unsigned int offset;
- unsigned int objsize;
+ void **freelist; /* Pointer to first free per cpu object */
+ struct page *page; /* The slab from which we are allocating */
+ int node; /* The node of the page (or -1 for debug) */
+ unsigned int offset; /* Freepointer offset (in word units) */
+ unsigned int objsize; /* Size of an object (from kmem_cache) */
};
struct kmem_cache_node {
#endif
#ifdef CONFIG_NUMA
- int defrag_ratio;
+ /*
+ * Defragmentation by allocating from a remote node.
+ */
+ int remote_node_defrag_ratio;
struct kmem_cache_node *node[MAX_NUMNODES];
#endif
#ifdef CONFIG_SMP
/* USB slave/gadget data port base */
#define SM501_USB_GADGET_DATA (0x070000)
-/* Display contoller/video engine base */
+/* Display controller/video engine base */
#define SM501_DC (0x080000)
/* common defines for the SM501 address registers */
/*
* In the UP-nondebug case there's no real locking going on, so the
* only thing we have to do is to keep the preempt counts and irq
- * flags straight, to supress compiler warnings of unused lock
+ * flags straight, to suppress compiler warnings of unused lock
* variables, and to add the proper checker annotations:
*/
#define __LOCK(lock) \
/**
* virtqueue - a queue to register buffers for sending or receiving.
* @callback: the function to call when buffers are consumed (can be NULL).
- * If this returns false, callbacks are suppressed until vq_ops->restart
- * is called.
* @vdev: the virtio device this queue was created for.
* @vq_ops: the operations for this virtqueue (see below).
* @priv: a pointer for the virtqueue implementation to use.
*/
struct virtqueue
{
- bool (*callback)(struct virtqueue *vq);
+ void (*callback)(struct virtqueue *vq);
struct virtio_device *vdev;
struct virtqueue_ops *vq_ops;
void *priv;
* vq: the struct virtqueue we're talking about.
* len: the length written into the buffer
* Returns NULL or the "data" token handed to add_buf.
- * @restart: restart callbacks after callback returned false.
+ * @disable_cb: disable callbacks
+ * vq: the struct virtqueue we're talking about.
+ * @enable_cb: restart callbacks after disable_cb.
* vq: the struct virtqueue we're talking about.
* This returns "false" (and doesn't re-enable) if there are pending
* buffers in the queue, to avoid a race.
- * @shutdown: "unadd" all buffers.
- * vq: the struct virtqueue we're talking about.
- * Remove everything from the queue.
*
* Locking rules are straightforward: the driver is responsible for
* locking. No two operations may be invoked simultaneously.
void *(*get_buf)(struct virtqueue *vq, unsigned int *len);
- bool (*restart)(struct virtqueue *vq);
-
- void (*shutdown)(struct virtqueue *vq);
+ void (*disable_cb)(struct virtqueue *vq);
+ bool (*enable_cb)(struct virtqueue *vq);
};
/**
* @probe: the function to call when a device is found. Returns a token for
* remove, or PTR_ERR().
* @remove: the function when a device is removed.
+ * @config_changed: optional function to call when the device configuration
+ * changes; may be called in interrupt context.
*/
struct virtio_driver {
struct device_driver driver;
const struct virtio_device_id *id_table;
int (*probe)(struct virtio_device *dev);
void (*remove)(struct virtio_device *dev);
+ void (*config_changed)(struct virtio_device *dev);
};
int register_virtio_driver(struct virtio_driver *drv);
--- /dev/null
+#ifndef _LINUX_VIRTIO_BALLOON_H
+#define _LINUX_VIRTIO_BALLOON_H
+#include <linux/virtio_config.h>
+
+/* The ID for virtio_balloon */
+#define VIRTIO_ID_BALLOON 5
+
+/* The feature bitmap for virtio balloon */
+#define VIRTIO_BALLOON_F_MUST_TELL_HOST 0 /* Tell before reclaiming pages */
+
+struct virtio_balloon_config
+{
+ /* Number of pages host wants Guest to give up. */
+ __le32 num_pages;
+ /* Number of pages we've actually got in balloon. */
+ __le32 actual;
+};
+#endif /* _LINUX_VIRTIO_BALLOON_H */
#define VIRTIO_ID_BLOCK 2
/* Feature bits */
-#define VIRTIO_CONFIG_BLK_F 0x40
-#define VIRTIO_BLK_F_BARRIER 1 /* Does host support barriers? */
+#define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */
+#define VIRTIO_BLK_F_SIZE_MAX 1 /* Indicates maximum segment size */
+#define VIRTIO_BLK_F_SEG_MAX 2 /* Indicates maximum # of segments */
-/* The capacity (in 512-byte sectors). */
-#define VIRTIO_CONFIG_BLK_F_CAPACITY 0x41
-/* The maximum segment size. */
-#define VIRTIO_CONFIG_BLK_F_SIZE_MAX 0x42
-/* The maximum number of segments. */
-#define VIRTIO_CONFIG_BLK_F_SEG_MAX 0x43
+struct virtio_blk_config
+{
+ /* The capacity (in 512-byte sectors). */
+ __le64 capacity;
+ /* The maximum segment size (if VIRTIO_BLK_F_SIZE_MAX) */
+ __le32 size_max;
+ /* The maximum number of segments (if VIRTIO_BLK_F_SEG_MAX) */
+ __le32 seg_max;
+} __attribute__((packed));
/* These two define direction. */
#define VIRTIO_BLK_T_IN 0
__u32 ioprio;
/* Sector (ie. 512 byte offset) */
__u64 sector;
- /* Where to put reply. */
- __u64 id;
};
#define VIRTIO_BLK_S_OK 0
* store and access that space differently. */
#include <linux/types.h>
-/* Status byte for guest to report progress, and synchronize config. */
+/* Status byte for guest to report progress, and synchronize features. */
/* We have seen device and processed generic fields (VIRTIO_CONFIG_F_VIRTIO) */
#define VIRTIO_CONFIG_S_ACKNOWLEDGE 1
/* We have found a driver for the device. */
/* We've given up on this device. */
#define VIRTIO_CONFIG_S_FAILED 0x80
-/* Feature byte (actually 7 bits availabe): */
-/* Requirements/features of the virtio implementation. */
-#define VIRTIO_CONFIG_F_VIRTIO 1
-/* Requirements/features of the virtqueue (may have more than one). */
-#define VIRTIO_CONFIG_F_VIRTQUEUE 2
-
#ifdef __KERNEL__
struct virtio_device;
/**
* virtio_config_ops - operations for configuring a virtio device
- * @find: search for the next configuration field of the given type.
+ * @feature: search for a feature in this config
* vdev: the virtio_device
- * type: the feature type
- * len: the (returned) length of the field if found.
- * Returns a token if found, or NULL. Never returnes the same field twice
- * (ie. it's used up).
- * @get: read the value of a configuration field after find().
+ * bit: the feature bit
+ * Returns true if the feature is supported. Acknowledges the feature
+ * so the host can see it.
+ * @get: read the value of a configuration field
* vdev: the virtio_device
- * token: the token returned from find().
+ * offset: the offset of the configuration field
* buf: the buffer to write the field value into.
- * len: the length of the buffer (given by find()).
+ * len: the length of the buffer
* Note that contents are conventionally little-endian.
- * @set: write the value of a configuration field after find().
+ * @set: write the value of a configuration field
* vdev: the virtio_device
- * token: the token returned from find().
+ * offset: the offset of the configuration field
* buf: the buffer to read the field value from.
- * len: the length of the buffer (given by find()).
+ * len: the length of the buffer
* Note that contents are conventionally little-endian.
* @get_status: read the status byte
* vdev: the virtio_device
* @set_status: write the status byte
* vdev: the virtio_device
* status: the new status byte
- * @find_vq: find the first VIRTIO_CONFIG_F_VIRTQUEUE and create a virtqueue.
+ * @reset: reset the device
+ * vdev: the virtio device
+ * After this, status and feature negotiation must be done again
+ * @find_vq: find a virtqueue and instantiate it.
* vdev: the virtio_device
+ * index: the 0-based virtqueue number in case there's more than one.
* callback: the virqtueue callback
- * Returns the new virtqueue or ERR_PTR().
+ * Returns the new virtqueue or ERR_PTR() (eg. -ENOENT).
* @del_vq: free a virtqueue found by find_vq().
*/
struct virtio_config_ops
{
- void *(*find)(struct virtio_device *vdev, u8 type, unsigned *len);
- void (*get)(struct virtio_device *vdev, void *token,
+ bool (*feature)(struct virtio_device *vdev, unsigned bit);
+ void (*get)(struct virtio_device *vdev, unsigned offset,
void *buf, unsigned len);
- void (*set)(struct virtio_device *vdev, void *token,
+ void (*set)(struct virtio_device *vdev, unsigned offset,
const void *buf, unsigned len);
u8 (*get_status)(struct virtio_device *vdev);
void (*set_status)(struct virtio_device *vdev, u8 status);
+ void (*reset)(struct virtio_device *vdev);
struct virtqueue *(*find_vq)(struct virtio_device *vdev,
- bool (*callback)(struct virtqueue *));
+ unsigned index,
+ void (*callback)(struct virtqueue *));
void (*del_vq)(struct virtqueue *vq);
};
/**
- * virtio_config_val - get a single virtio config and mark it used.
- * @config: the virtio config space
- * @type: the type to search for.
+ * virtio_config_val - look for a feature and get a single virtio config.
+ * @vdev: the virtio device
+ * @fbit: the feature bit
+ * @offset: the type to search for.
* @val: a pointer to the value to fill in.
*
- * Once used, the config type is marked with VIRTIO_CONFIG_F_USED so it can't
- * be found again. This version does endian conversion. */
-#define virtio_config_val(vdev, type, v) ({ \
- int _err = __virtio_config_val((vdev),(type),(v),sizeof(*(v))); \
- \
- BUILD_BUG_ON(sizeof(*(v)) != 1 && sizeof(*(v)) != 2 \
- && sizeof(*(v)) != 4 && sizeof(*(v)) != 8); \
- if (!_err) { \
- switch (sizeof(*(v))) { \
- case 2: le16_to_cpus((__u16 *) v); break; \
- case 4: le32_to_cpus((__u32 *) v); break; \
- case 8: le64_to_cpus((__u64 *) v); break; \
- } \
- } \
+ * The return value is -ENOENT if the feature doesn't exist. Otherwise
+ * the value is endian-corrected and returned in v. */
+#define virtio_config_val(vdev, fbit, offset, v) ({ \
+ int _err; \
+ if ((vdev)->config->feature((vdev), (fbit))) { \
+ __virtio_config_val((vdev), (offset), (v)); \
+ _err = 0; \
+ } else \
+ _err = -ENOENT; \
_err; \
})
-int __virtio_config_val(struct virtio_device *dev,
- u8 type, void *val, size_t size);
-
/**
- * virtio_use_bit - helper to use a feature bit in a bitfield value.
- * @dev: the virtio device
- * @token: the token as returned from vdev->config->find().
- * @len: the length of the field.
- * @bitnum: the bit to test.
+ * __virtio_config_val - get a single virtio config without feature check.
+ * @vdev: the virtio device
+ * @offset: the type to search for.
+ * @val: a pointer to the value to fill in.
*
- * If handed a NULL token, it returns false, otherwise returns bit status.
- * If it's one, it sets the mirroring acknowledgement bit. */
-int virtio_use_bit(struct virtio_device *vdev,
- void *token, unsigned int len, unsigned int bitnum);
+ * The value is endian-corrected and returned in v. */
+#define __virtio_config_val(vdev, offset, v) do { \
+ BUILD_BUG_ON(sizeof(*(v)) != 1 && sizeof(*(v)) != 2 \
+ && sizeof(*(v)) != 4 && sizeof(*(v)) != 8); \
+ (vdev)->config->get((vdev), (offset), (v), sizeof(*(v))); \
+ switch (sizeof(*(v))) { \
+ case 2: le16_to_cpus((__u16 *) v); break; \
+ case 4: le32_to_cpus((__u32 *) v); break; \
+ case 8: le64_to_cpus((__u64 *) v); break; \
+ } \
+} while(0)
#endif /* __KERNEL__ */
#endif /* _LINUX_VIRTIO_CONFIG_H */
/* The ID for virtio_net */
#define VIRTIO_ID_NET 1
-/* The bitmap of config for virtio net */
-#define VIRTIO_CONFIG_NET_F 0x40
-#define VIRTIO_NET_F_NO_CSUM 0
-#define VIRTIO_NET_F_TSO4 1
-#define VIRTIO_NET_F_UFO 2
-#define VIRTIO_NET_F_TSO4_ECN 3
-#define VIRTIO_NET_F_TSO6 4
+/* The feature bitmap for virtio net */
+#define VIRTIO_NET_F_CSUM 0 /* Can handle pkts w/ partial csum */
+#define VIRTIO_NET_F_MAC 5 /* Host has given MAC address. */
+#define VIRTIO_NET_F_GSO 6 /* Can handle pkts w/ any GSO type */
-/* The config defining mac address. */
-#define VIRTIO_CONFIG_NET_MAC_F 0x41
+struct virtio_net_config
+{
+ /* The config defining mac address (if VIRTIO_NET_F_MAC) */
+ __u8 mac[6];
+} __attribute__((packed));
/* This is the first element of the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header. */
struct virtio_net_hdr
{
#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 // Use csum_start, csum_offset
- __u8 flags;
+ __u8 flags;
#define VIRTIO_NET_HDR_GSO_NONE 0 // Not a GSO frame
#define VIRTIO_NET_HDR_GSO_TCPV4 1 // GSO frame, IPv4 TCP (TSO)
-/* FIXME: Do we need this? If they said they can handle ECN, do they care? */
-#define VIRTIO_NET_HDR_GSO_TCPV4_ECN 2 // GSO frame, IPv4 TCP w/ ECN
#define VIRTIO_NET_HDR_GSO_UDP 3 // GSO frame, IPv4 UDP (UFO)
#define VIRTIO_NET_HDR_GSO_TCPV6 4 // GSO frame, IPv6 TCP
- __u8 gso_type;
- __u16 gso_size;
- __u16 csum_start;
- __u16 csum_offset;
+#define VIRTIO_NET_HDR_GSO_ECN 0x80 // TCP has ECN set
+ __u8 gso_type;
+ __u16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */
+ __u16 gso_size; /* Bytes to append to gso_hdr_len per frame */
+ __u16 csum_start; /* Position to start checksumming from */
+ __u16 csum_offset; /* Offset after that to place checksum */
};
#endif /* _LINUX_VIRTIO_NET_H */
--- /dev/null
+/*
+ * Virtio PCI driver
+ *
+ * This module allows virtio devices to be used over a virtual PCI device.
+ * This can be used with QEMU based VMMs like KVM or Xen.
+ *
+ * Copyright IBM Corp. 2007
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef _LINUX_VIRTIO_PCI_H
+#define _LINUX_VIRTIO_PCI_H
+
+#include <linux/virtio_config.h>
+
+/* A 32-bit r/o bitmask of the features supported by the host */
+#define VIRTIO_PCI_HOST_FEATURES 0
+
+/* A 32-bit r/w bitmask of features activated by the guest */
+#define VIRTIO_PCI_GUEST_FEATURES 4
+
+/* A 32-bit r/w PFN for the currently selected queue */
+#define VIRTIO_PCI_QUEUE_PFN 8
+
+/* A 16-bit r/o queue size for the currently selected queue */
+#define VIRTIO_PCI_QUEUE_NUM 12
+
+/* A 16-bit r/w queue selector */
+#define VIRTIO_PCI_QUEUE_SEL 14
+
+/* A 16-bit r/w queue notifier */
+#define VIRTIO_PCI_QUEUE_NOTIFY 16
+
+/* An 8-bit device status register. */
+#define VIRTIO_PCI_STATUS 18
+
+/* An 8-bit r/o interrupt status register. Reading the value will return the
+ * current contents of the ISR and will also clear it. This is effectively
+ * a read-and-acknowledge. */
+#define VIRTIO_PCI_ISR 19
+
+/* The bit of the ISR which indicates a device configuration change. */
+#define VIRTIO_PCI_ISR_CONFIG 0x2
+
+/* The remaining space is defined by each driver as the per-driver
+ * configuration space */
+#define VIRTIO_PCI_CONFIG 20
+
+/* Virtio ABI version, this must match exactly */
+#define VIRTIO_PCI_ABI_VERSION 0
+#endif
/* This marks a buffer as write-only (otherwise read-only). */
#define VRING_DESC_F_WRITE 2
-/* This means don't notify other side when buffer added. */
+/* The Host uses this in used->flags to advise the Guest: don't kick me when
+ * you add a buffer. It's unreliable, so it's simply an optimization. Guest
+ * will still kick if it's out of buffers. */
#define VRING_USED_F_NO_NOTIFY 1
-/* This means don't interrupt guest when buffer consumed. */
+/* The Guest uses this in avail->flags to advise the Host: don't interrupt me
+ * when you consume a buffer. It's unreliable, so it's simply an
+ * optimization. */
#define VRING_AVAIL_F_NO_INTERRUPT 1
/* Virtio ring descriptors: 16 bytes. These can chain together via "next". */
* };
*/
static inline void vring_init(struct vring *vr, unsigned int num, void *p,
- unsigned int pagesize)
+ unsigned long pagesize)
{
vr->num = num;
vr->desc = p;
& ~(pagesize - 1));
}
-static inline unsigned vring_size(unsigned int num, unsigned int pagesize)
+static inline unsigned vring_size(unsigned int num, unsigned long pagesize)
{
return ((sizeof(struct vring_desc) * num + sizeof(__u16) * (2 + num)
+ pagesize - 1) & ~(pagesize - 1))
struct virtio_device *vdev,
void *pages,
void (*notify)(struct virtqueue *vq),
- bool (*callback)(struct virtqueue *vq));
+ void (*callback)(struct virtqueue *vq));
void vring_del_virtqueue(struct virtqueue *vq);
irqreturn_t vring_interrupt(int irq, void *_vq);
*/
struct iw_event
{
- __u16 len; /* Real lenght of this stuff */
+ __u16 len; /* Real length of this stuff */
__u16 cmd; /* Wireless IOCTL */
union iwreq_data u; /* IOCTL fixed payload */
};
saa6588.c and every driver (e.g. bttv-driver.c) that wants
to use the saa6588 module.
- Instead of having a seperate rds.h, I'd prefer to include
+ Instead of having a separate rds.h, I'd prefer to include
this stuff in one of the already existing files like tuner.h
(c) 2005 by Hans J. Koch
struct ip6_sf_list *mca_sources;
struct ip6_sf_list *mca_tomb;
unsigned int mca_sfmode;
+ unsigned char mca_crcount;
unsigned long mca_sfcount[2];
struct timer_list mca_timer;
unsigned mca_flags;
int mca_users;
atomic_t mca_refcnt;
spinlock_t mca_lock;
- unsigned char mca_crcount;
unsigned long mca_cstamp;
unsigned long mca_tstamp;
};
struct ifmcaddr6 *mc_list;
struct ifmcaddr6 *mc_tomb;
rwlock_t mc_lock;
- unsigned long mc_v1_seen;
- unsigned long mc_maxdelay;
unsigned char mc_qrv;
unsigned char mc_gq_running;
unsigned char mc_ifc_count;
+ unsigned long mc_v1_seen;
+ unsigned long mc_maxdelay;
struct timer_list mc_gq_timer; /* general query timer */
struct timer_list mc_ifc_timer; /* interface change timer */
return inet6_ehashfn(laddr, lport, faddr, fport);
}
-extern void __inet6_hash(struct inet_hashinfo *hashinfo, struct sock *sk);
+extern void __inet6_hash(struct sock *sk);
/*
* Sockets in TCP_CLOSE state are _always_ taken out of the hash, so
#undef INET_CSK_CLEAR_TIMERS
struct inet_bind_bucket;
-struct inet_hashinfo;
struct tcp_congestion_ops;
/*
int level, int optname,
char __user *optval, int __user *optlen);
void (*addr2sockaddr)(struct sock *sk, struct sockaddr *);
+ int (*bind_conflict)(const struct sock *sk,
+ const struct inet_bind_bucket *tb);
};
/** inet_connection_sock - INET connection oriented sock
const __be32 laddr);
extern int inet_csk_bind_conflict(const struct sock *sk,
const struct inet_bind_bucket *tb);
-extern int inet_csk_get_port(struct inet_hashinfo *hashinfo,
- struct sock *sk, unsigned short snum,
- int (*bind_conflict)(const struct sock *sk,
- const struct inet_bind_bucket *tb));
+extern int inet_csk_get_port(struct sock *sk, unsigned short snum);
extern struct dst_entry* inet_csk_route_req(struct sock *sk,
const struct request_sock *req);
}
/* Caller must disable local BH processing. */
-static inline void __inet_inherit_port(struct inet_hashinfo *table,
- struct sock *sk, struct sock *child)
+static inline void __inet_inherit_port(struct sock *sk, struct sock *child)
{
+ struct inet_hashinfo *table = sk->sk_prot->hashinfo;
const int bhash = inet_bhashfn(inet_sk(child)->num, table->bhash_size);
struct inet_bind_hashbucket *head = &table->bhash[bhash];
struct inet_bind_bucket *tb;
spin_unlock(&head->lock);
}
-static inline void inet_inherit_port(struct inet_hashinfo *table,
- struct sock *sk, struct sock *child)
+static inline void inet_inherit_port(struct sock *sk, struct sock *child)
{
local_bh_disable();
- __inet_inherit_port(table, sk, child);
+ __inet_inherit_port(sk, child);
local_bh_enable();
}
-extern void inet_put_port(struct inet_hashinfo *table, struct sock *sk);
+extern void inet_put_port(struct sock *sk);
extern void inet_listen_wlock(struct inet_hashinfo *hashinfo);
wake_up(&hashinfo->lhash_wait);
}
-extern void __inet_hash(struct inet_hashinfo *hashinfo, struct sock *sk);
-extern void __inet_hash_nolisten(struct inet_hashinfo *hinfo, struct sock *sk);
-
-static inline void inet_hash(struct inet_hashinfo *hashinfo, struct sock *sk)
-{
- if (sk->sk_state != TCP_CLOSE) {
- local_bh_disable();
- __inet_hash(hashinfo, sk);
- local_bh_enable();
- }
-}
-
-static inline void inet_unhash(struct inet_hashinfo *hashinfo, struct sock *sk)
-{
- rwlock_t *lock;
-
- if (sk_unhashed(sk))
- goto out;
-
- if (sk->sk_state == TCP_LISTEN) {
- local_bh_disable();
- inet_listen_wlock(hashinfo);
- lock = &hashinfo->lhash_lock;
- } else {
- lock = inet_ehash_lockp(hashinfo, sk->sk_hash);
- write_lock_bh(lock);
- }
-
- if (__sk_del_node_init(sk))
- sock_prot_inuse_add(sk->sk_prot, -1);
- write_unlock_bh(lock);
-out:
- if (sk->sk_state == TCP_LISTEN)
- wake_up(&hashinfo->lhash_wait);
-}
+extern void __inet_hash_nolisten(struct sock *sk);
+extern void inet_hash(struct sock *sk);
+extern void inet_unhash(struct sock *sk);
extern struct sock *__inet_lookup_listener(struct net *net,
struct inet_hashinfo *hashinfo,
struct sock *sk,
int (*check_established)(struct inet_timewait_death_row *,
struct sock *, __u16, struct inet_timewait_sock **),
- void (*hash)(struct inet_hashinfo *, struct sock *));
+ void (*hash)(struct sock *sk));
extern int inet_hash_connect(struct inet_timewait_death_row *death_row,
struct sock *sk);
#endif /* _INET_HASHTABLES_H */
#define tw_hash __tw_common.skc_hash
#define tw_prot __tw_common.skc_prot
#define tw_net __tw_common.skc_net
+ int tw_timeout;
volatile unsigned char tw_substate;
/* 3 bits hole, try to pack */
unsigned char tw_rcv_wscale;
__u8 tw_ipv6only:1;
/* 15 bits hole, try to pack */
__u16 tw_ipv6_offset;
- int tw_timeout;
unsigned long tw_ttd;
struct inet_bind_bucket *tw_tb;
struct hlist_node tw_death_node;
struct request_sock_ops;
struct timewait_sock_ops;
+struct inet_hashinfo;
/* Networking protocol blocks we attach to sockets.
* socket layer -> transport layer interface
struct request_sock_ops *rsk_prot;
struct timewait_sock_ops *twsk_prot;
+ struct inet_hashinfo *hashinfo;
+
struct module *owner;
char name[32];
* ports has a unique presense on the SAN, and may be instantiated via
* NPIV, Virtual Fabrics, or via additional ALPAs. As the vport is a
* unique presense, each vport has it's own view of the fabric,
- * authentication priviledge, and priorities.
+ * authentication privilege, and priorities.
*
* A virtual port may support 1 or more FC4 roles. Typically it is a
* FCP Initiator. It could be a FCP Target, or exist sole for an IP over FC
endchoice
+config PROFILING
+ bool "Profiling support (EXPERIMENTAL)"
+ help
+ Say Y here to enable the extended profiling support mechanisms used
+ by profilers such as OProfile.
+
+config MARKERS
+ bool "Activate markers"
+ help
+ Place an empty function call at each marker site. Can be
+ dynamically changed for a probe function.
+
+source "arch/Kconfig"
+
endmenu # General setup
config SLABINFO
+++ /dev/null
-menuconfig INSTRUMENTATION
- bool "Instrumentation Support"
- default y
- ---help---
- Say Y here to get to see options related to performance measurement,
- system-wide debugging, and testing. This option alone does not add any
- kernel code.
-
- If you say N, all options in this submenu will be skipped and
- disabled. If you're trying to debug the kernel itself, go see the
- Kernel Hacking menu.
-
-if INSTRUMENTATION
-
-config PROFILING
- bool "Profiling support (EXPERIMENTAL)"
- help
- Say Y here to enable the extended profiling support mechanisms used
- by profilers such as OProfile.
-
-config OPROFILE
- tristate "OProfile system profiling (EXPERIMENTAL)"
- depends on PROFILING && !UML
- depends on ARCH_SUPPORTS_OPROFILE || ALPHA || ARM || BLACKFIN || IA64 || M32R || PARISC || PPC || S390 || SUPERH || SPARC
- help
- OProfile is a profiling system capable of profiling the
- whole system, include the kernel, kernel modules, libraries,
- and applications.
-
- If unsure, say N.
-
-config KPROBES
- bool "Kprobes"
- depends on KALLSYMS && MODULES && !UML
- depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32
- help
- Kprobes allows you to trap at almost any kernel address and
- execute a callback function. register_kprobe() establishes
- a probepoint and specifies the callback. Kprobes is useful
- for kernel debugging, non-intrusive instrumentation and testing.
- If in doubt, say "N".
-
-config MARKERS
- bool "Activate markers"
- help
- Place an empty function call at each marker site. Can be
- dynamically changed for a probe function.
-
-endif # INSTRUMENTATION
rcupdate.o extable.o params.o posix-timers.o \
kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
hrtimer.o rwsem.o latency.o nsproxy.o srcu.o \
- utsname.o notifier.o
+ utsname.o notifier.o ksysfs.o
obj-$(CONFIG_SYSCTL) += sysctl_check.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_AUDITSYSCALL) += auditsc.o
obj-$(CONFIG_AUDIT_TREE) += audit_tree.o
obj-$(CONFIG_KPROBES) += kprobes.o
-obj-$(CONFIG_SYSFS) += ksysfs.o
obj-$(CONFIG_DETECT_SOFTLOCKUP) += softlockup.o
obj-$(CONFIG_GENERIC_HARDIRQS) += irq/
obj-$(CONFIG_SECCOMP) += seccomp.o
#include <asm/pgtable.h>
#include <asm/mmu_context.h>
-extern void sem_exit (void);
-
static void exit_mm(struct task_struct * tsk);
static void __unhash_process(struct task_struct *p)
goto retry;
else if (error) {
/*
- * Wierd looking, but we return EAGAIN if the IDR is
+ * Weird looking, but we return EAGAIN if the IDR is
* full (proper POSIX return value for this)
*/
error = -EAGAIN;
return -EINVAL;
vma->vm_ops = &relay_file_mmap_ops;
+ vma->vm_flags |= VM_DONTEXPAND;
vma->vm_private_data = buf;
buf->chan->cb->buf_mapped(buf, filp);
config DEBUG_SECTION_MISMATCH
bool "Enable full Section mismatch analysis"
- default n
+ depends on UNDEFINED
help
The section mismatch analysis checks if there are illegal
references from one section to another section.
most likely result in an oops.
In the code functions and variables are annotated with
__init, __devinit etc. (see full list in include/linux/init.h)
- which result in the code/data being placed in specific sections.
- The section mismatch anaylsis are always done after a full
- kernel build but enabling this options will in addition
+ which results in the code/data being placed in specific sections.
+ The section mismatch analysis is always done after a full
+ kernel build but enabling this option will in addition
do the following:
- Add the option -fno-inline-functions-called-once to gcc
When inlining a function annotated __init in a non-init
- function we would loose the section information and thus
+ function we would lose the section information and thus
the analysis would not catch the illegal reference.
- This options tell gcc to inline less but will also
+ This option tells gcc to inline less but will also
result in a larger kernel.
- Run the section mismatch analysis for each module/built-in.o
When we run the section mismatch analysis on vmlinux.o we
- looses valueable information about where the mismatch was
+ lose valueble information about where the mismatch was
introduced.
Running the analysis for each module/built-in.o file
will tell where the mismatch happens much closer to the
* but again the multiple of the polynomial to subtract depends only on
* the high bits, the high 8 bits in this case.
*
- * The multile we need in that case is the low 32 bits of a 40-bit
+ * The multiple we need in that case is the low 32 bits of a 40-bit
* value whose high 8 bits are given, and which is a multiple of the
* generator polynomial. This is simply the CRC-32 of the given
* one-byte message.
* @name: the name for the kset
* @parent: the parent kobject of this kobject, if any.
*
- * This function creates a kset structure dynamically and registers it
+ * This function creates a kobject structure dynamically and registers it
* with sysfs. When you are finished with this structure, call
* kobject_put() and the structure will be dynamically freed when
* it is no longer being used.
int nice_match; /* Stop searching when current match exceeds this */
/* used by trees.c: */
- /* Didn't use ct_data typedef below to supress compiler warning */
+ /* Didn't use ct_data typedef below to suppress compiler warning */
struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */
struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */
const struct iovec *iov = i->iov;
size_t base = i->iov_offset;
- while (bytes) {
+ /*
+ * The !iov->iov_len check ensures we skip over unlikely
+ * zero-length segments.
+ */
+ while (bytes || !iov->iov_len) {
int copy = min(bytes, iov->iov_len - base);
bytes -= copy;
cond_resched();
+ iov_iter_advance(i, copied);
if (unlikely(copied == 0)) {
/*
* If we were unable to copy any data at all, we must
iov_iter_single_seg_count(i));
goto again;
}
- iov_iter_advance(i, copied);
pos += copied;
written += copied;
vma->vm_start = addr;
vma->vm_end = addr + len;
- vma->vm_flags = vm_flags | mm->def_flags;
+ vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND;
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
vma->vm_ops = &special_mapping_vmops;
static inline int sysfs_slab_add(struct kmem_cache *s) { return 0; }
static inline int sysfs_slab_alias(struct kmem_cache *s, const char *p)
{ return 0; }
-static inline void sysfs_slab_remove(struct kmem_cache *s) {}
+static inline void sysfs_slab_remove(struct kmem_cache *s)
+{
+ kfree(s);
+}
#endif
/********************************************************************
printk(KERN_ERR "%8s 0x%p: ", text, addr + i);
newline = 0;
}
- printk(" %02x", addr[i]);
+ printk(KERN_CONT " %02x", addr[i]);
offset = i % 16;
ascii[offset] = isgraph(addr[i]) ? addr[i] : '.';
if (offset == 15) {
- printk(" %s\n",ascii);
+ printk(KERN_CONT " %s\n", ascii);
newline = 1;
}
}
if (!newline) {
i %= 16;
while (i < 16) {
- printk(" ");
+ printk(KERN_CONT " ");
ascii[i] = ' ';
i++;
}
- printk(" %s\n", ascii);
+ printk(KERN_CONT " %s\n", ascii);
}
}
if (s->flags & __OBJECT_POISON) {
memset(p, POISON_FREE, s->objsize - 1);
- p[s->objsize -1] = POISON_END;
+ p[s->objsize - 1] = POISON_END;
}
if (s->flags & SLAB_RED_ZONE)
static int check_bytes_and_report(struct kmem_cache *s, struct page *page,
u8 *object, char *what,
- u8* start, unsigned int value, unsigned int bytes)
+ u8 *start, unsigned int value, unsigned int bytes)
{
u8 *fault;
u8 *end;
(!check_bytes_and_report(s, page, p, "Poison", p,
POISON_FREE, s->objsize - 1) ||
!check_bytes_and_report(s, page, p, "Poison",
- p + s->objsize -1, POISON_END, 1)))
+ p + s->objsize - 1, POISON_END, 1)))
return 0;
/*
* check_pad_bytes cleans up on its own.
"SLUB <none>: no slab for object 0x%p.\n",
object);
dump_stack();
- }
- else
+ } else
object_err(s, page, object,
"page slab pointer corrupt.");
goto fail;
/*
* Determine which debug features should be switched on
*/
- for ( ;*str && *str != ','; str++) {
+ for (; *str && *str != ','; str++) {
switch (tolower(*str)) {
case 'f':
slub_debug |= SLAB_DEBUG_FREE;
break;
default:
printk(KERN_ERR "slub_debug option '%c' "
- "unknown. skipped\n",*str);
+ "unknown. skipped\n", *str);
}
}
*/
static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
{
- struct page * page;
+ struct page *page;
int pages = 1 << s->order;
if (s->order)
mod_zone_page_state(page_zone(page),
(s->flags & SLAB_RECLAIM_ACCOUNT) ?
NR_SLAB_RECLAIMABLE : NR_SLAB_UNRECLAIMABLE,
- - pages);
+ -pages);
__free_pages(page, s->order);
}
/*
* Management of partially allocated slabs
*/
-static void add_partial_tail(struct kmem_cache_node *n, struct page *page)
-{
- spin_lock(&n->list_lock);
- n->nr_partial++;
- list_add_tail(&page->lru, &n->partial);
- spin_unlock(&n->list_lock);
-}
-
-static void add_partial(struct kmem_cache_node *n, struct page *page)
+static void add_partial(struct kmem_cache_node *n,
+ struct page *page, int tail)
{
spin_lock(&n->list_lock);
n->nr_partial++;
- list_add(&page->lru, &n->partial);
+ if (tail)
+ list_add_tail(&page->lru, &n->partial);
+ else
+ list_add(&page->lru, &n->partial);
spin_unlock(&n->list_lock);
}
* expensive if we do it every time we are trying to find a slab
* with available objects.
*/
- if (!s->defrag_ratio || get_cycles() % 1024 > s->defrag_ratio)
+ if (!s->remote_node_defrag_ratio ||
+ get_cycles() % 1024 > s->remote_node_defrag_ratio)
return NULL;
zonelist = &NODE_DATA(slab_node(current->mempolicy))
*
* On exit the slab lock will have been dropped.
*/
-static void unfreeze_slab(struct kmem_cache *s, struct page *page)
+static void unfreeze_slab(struct kmem_cache *s, struct page *page, int tail)
{
struct kmem_cache_node *n = get_node(s, page_to_nid(page));
if (page->inuse) {
if (page->freelist)
- add_partial(n, page);
+ add_partial(n, page, tail);
else if (SlabDebug(page) && (s->flags & SLAB_STORE_USER))
add_full(n, page);
slab_unlock(page);
* partial list stays small. kmem_cache_shrink can
* reclaim empty slabs from the partial list.
*/
- add_partial_tail(n, page);
+ add_partial(n, page, 1);
slab_unlock(page);
} else {
slab_unlock(page);
static void deactivate_slab(struct kmem_cache *s, struct kmem_cache_cpu *c)
{
struct page *page = c->page;
+ int tail = 1;
/*
* Merge cpu freelist into freelist. Typically we get here
* because both freelists are empty. So this is unlikely
while (unlikely(c->freelist)) {
void **object;
+ tail = 0; /* Hot objects. Put the slab first */
+
/* Retrieve object from cpu_freelist */
object = c->freelist;
c->freelist = c->freelist[c->offset];
page->inuse--;
}
c->page = NULL;
- unfreeze_slab(s, page);
+ unfreeze_slab(s, page, tail);
}
static inline void flush_slab(struct kmem_cache *s, struct kmem_cache_cpu *c)
*
* Otherwise we can simply pick the next object from the lockless free list.
*/
-static void __always_inline *slab_alloc(struct kmem_cache *s,
+static __always_inline void *slab_alloc(struct kmem_cache *s,
gfp_t gfpflags, int node, void *addr)
{
void **object;
* then add it.
*/
if (unlikely(!prior))
- add_partial_tail(get_node(s, page_to_nid(page)), page);
+ add_partial(get_node(s, page_to_nid(page)), page, 1);
out_unlock:
slab_unlock(page);
* If fastpath is not possible then fall back to __slab_free where we deal
* with all sorts of special processing.
*/
-static void __always_inline slab_free(struct kmem_cache *s,
+static __always_inline void slab_free(struct kmem_cache *s,
struct page *page, void *x, void *addr)
{
void **object = (void *)x;
{
struct page *page;
struct kmem_cache_node *n;
+ unsigned long flags;
BUG_ON(kmalloc_caches->size < sizeof(struct kmem_cache_node));
#endif
init_kmem_cache_node(n);
atomic_long_inc(&n->nr_slabs);
- add_partial(n, page);
+ /*
+ * lockdep requires consistent irq usage for each lock
+ * so even though there cannot be a race this early in
+ * the boot sequence, we still disable irqs.
+ */
+ local_irq_save(flags);
+ add_partial(n, page, 0);
+ local_irq_restore(flags);
return n;
}
s->refcount = 1;
#ifdef CONFIG_NUMA
- s->defrag_ratio = 100;
+ s->remote_node_defrag_ratio = 100;
#endif
if (!init_kmem_cache_nodes(s, gfpflags & ~SLUB_DMA))
goto error;
*/
int kmem_ptr_validate(struct kmem_cache *s, const void *object)
{
- struct page * page;
+ struct page *page;
page = get_object_page(object);
if (kmem_cache_close(s))
WARN_ON(1);
sysfs_slab_remove(s);
- kfree(s);
} else
up_write(&slub_lock);
}
static int __init setup_slub_min_order(char *str)
{
- get_option (&str, &slub_min_order);
+ get_option(&str, &slub_min_order);
return 1;
}
static int __init setup_slub_max_order(char *str)
{
- get_option (&str, &slub_max_order);
+ get_option(&str, &slub_max_order);
return 1;
}
static int __init setup_slub_min_objects(char *str)
{
- get_option (&str, &slub_min_objects);
+ get_option(&str, &slub_min_objects);
return 1;
}
}
EXPORT_SYMBOL(kfree);
+static unsigned long count_partial(struct kmem_cache_node *n)
+{
+ unsigned long flags;
+ unsigned long x = 0;
+ struct page *page;
+
+ spin_lock_irqsave(&n->list_lock, flags);
+ list_for_each_entry(page, &n->partial, lru)
+ x += page->inuse;
+ spin_unlock_irqrestore(&n->list_lock, flags);
+ return x;
+}
+
/*
* kmem_cache_shrink removes empty slabs from the partial lists and sorts
* the remaining slabs by the number of items in use. The slabs with the
* Check if alignment is compatible.
* Courtesy of Adrian Drzewiecki
*/
- if ((s->size & ~(align -1)) != s->size)
+ if ((s->size & ~(align - 1)) != s->size)
continue;
if (s->size - size >= sizeof(void *))
return NOTIFY_OK;
}
-static struct notifier_block __cpuinitdata slab_notifier =
- { &slab_cpuup_callback, NULL, 0 };
+static struct notifier_block __cpuinitdata slab_notifier = {
+ &slab_cpuup_callback, NULL, 0
+};
#endif
return slab_alloc(s, gfpflags, node, caller);
}
-static unsigned long count_partial(struct kmem_cache_node *n)
-{
- unsigned long flags;
- unsigned long x = 0;
- struct page *page;
-
- spin_lock_irqsave(&n->list_lock, flags);
- list_for_each_entry(page, &n->partial, lru)
- x += page->inuse;
- spin_unlock_irqrestore(&n->list_lock, flags);
- return x;
-}
-
#if defined(CONFIG_SYSFS) && defined(CONFIG_SLUB_DEBUG)
static int validate_slab(struct kmem_cache *s, struct page *page,
unsigned long *map)
static int list_locations(struct kmem_cache *s, char *buf,
enum track_item alloc)
{
- int n = 0;
+ int len = 0;
unsigned long i;
struct loc_track t = { 0, 0, NULL };
int node;
for (i = 0; i < t.count; i++) {
struct location *l = &t.loc[i];
- if (n > PAGE_SIZE - 100)
+ if (len > PAGE_SIZE - 100)
break;
- n += sprintf(buf + n, "%7ld ", l->count);
+ len += sprintf(buf + len, "%7ld ", l->count);
if (l->addr)
- n += sprint_symbol(buf + n, (unsigned long)l->addr);
+ len += sprint_symbol(buf + len, (unsigned long)l->addr);
else
- n += sprintf(buf + n, "<not-available>");
+ len += sprintf(buf + len, "<not-available>");
if (l->sum_time != l->min_time) {
unsigned long remainder;
- n += sprintf(buf + n, " age=%ld/%ld/%ld",
+ len += sprintf(buf + len, " age=%ld/%ld/%ld",
l->min_time,
div_long_long_rem(l->sum_time, l->count, &remainder),
l->max_time);
} else
- n += sprintf(buf + n, " age=%ld",
+ len += sprintf(buf + len, " age=%ld",
l->min_time);
if (l->min_pid != l->max_pid)
- n += sprintf(buf + n, " pid=%ld-%ld",
+ len += sprintf(buf + len, " pid=%ld-%ld",
l->min_pid, l->max_pid);
else
- n += sprintf(buf + n, " pid=%ld",
+ len += sprintf(buf + len, " pid=%ld",
l->min_pid);
if (num_online_cpus() > 1 && !cpus_empty(l->cpus) &&
- n < PAGE_SIZE - 60) {
- n += sprintf(buf + n, " cpus=");
- n += cpulist_scnprintf(buf + n, PAGE_SIZE - n - 50,
+ len < PAGE_SIZE - 60) {
+ len += sprintf(buf + len, " cpus=");
+ len += cpulist_scnprintf(buf + len, PAGE_SIZE - len - 50,
l->cpus);
}
if (num_online_nodes() > 1 && !nodes_empty(l->nodes) &&
- n < PAGE_SIZE - 60) {
- n += sprintf(buf + n, " nodes=");
- n += nodelist_scnprintf(buf + n, PAGE_SIZE - n - 50,
+ len < PAGE_SIZE - 60) {
+ len += sprintf(buf + len, " nodes=");
+ len += nodelist_scnprintf(buf + len, PAGE_SIZE - len - 50,
l->nodes);
}
- n += sprintf(buf + n, "\n");
+ len += sprintf(buf + len, "\n");
}
free_loc_track(&t);
if (!t.count)
- n += sprintf(buf, "No data\n");
- return n;
+ len += sprintf(buf, "No data\n");
+ return len;
}
enum slab_stat_type {
for_each_possible_cpu(cpu) {
struct page *page;
- int node;
struct kmem_cache_cpu *c = get_cpu_slab(s, cpu);
if (!c)
continue;
if (page) {
if (flags & SO_CPU) {
- int x = 0;
-
if (flags & SO_OBJECTS)
x = page->inuse;
else
SLAB_ATTR_RO(free_calls);
#ifdef CONFIG_NUMA
-static ssize_t defrag_ratio_show(struct kmem_cache *s, char *buf)
+static ssize_t remote_node_defrag_ratio_show(struct kmem_cache *s, char *buf)
{
- return sprintf(buf, "%d\n", s->defrag_ratio / 10);
+ return sprintf(buf, "%d\n", s->remote_node_defrag_ratio / 10);
}
-static ssize_t defrag_ratio_store(struct kmem_cache *s,
+static ssize_t remote_node_defrag_ratio_store(struct kmem_cache *s,
const char *buf, size_t length)
{
int n = simple_strtoul(buf, NULL, 10);
if (n < 100)
- s->defrag_ratio = n * 10;
+ s->remote_node_defrag_ratio = n * 10;
return length;
}
-SLAB_ATTR(defrag_ratio);
+SLAB_ATTR(remote_node_defrag_ratio);
#endif
-static struct attribute * slab_attrs[] = {
+static struct attribute *slab_attrs[] = {
&slab_size_attr.attr,
&object_size_attr.attr,
&objs_per_slab_attr.attr,
&cache_dma_attr.attr,
#endif
#ifdef CONFIG_NUMA
- &defrag_ratio_attr.attr,
+ &remote_node_defrag_ratio_attr.attr,
#endif
NULL
};
return err;
}
+static void kmem_cache_release(struct kobject *kobj)
+{
+ struct kmem_cache *s = to_slab(kobj);
+
+ kfree(s);
+}
+
static struct sysfs_ops slab_sysfs_ops = {
.show = slab_attr_show,
.store = slab_attr_store,
static struct kobj_type slab_ktype = {
.sysfs_ops = &slab_sysfs_ops,
+ .release = kmem_cache_release
};
static int uevent_filter(struct kset *kset, struct kobject *kobj)
{
kobject_uevent(&s->kobj, KOBJ_REMOVE);
kobject_del(&s->kobj);
+ kobject_put(&s->kobj);
}
/*
/**
- * do_invalidatepage - invalidate part of all of a page
+ * do_invalidatepage - invalidate part or all of a page
* @page: the page which is affected
* @offset: the index of the truncation point
*
kfree(trans);
}
-static bool p9_virtio_intr(struct virtqueue *q)
+static void p9_virtio_intr(struct virtqueue *q)
{
struct virtio_chan *chan = q->vdev->priv;
P9_DPRINTK(P9_DEBUG_TRANS, "9p poll_wakeup: %p\n", &chan->wq);
wake_up_interruptible(&chan->wq);
-
- return true;
}
static int p9_virtio_probe(struct virtio_device *dev)
/* Find the input queue. */
dev->priv = chan;
- chan->in_vq = dev->config->find_vq(dev, p9_virtio_intr);
+ chan->in_vq = dev->config->find_vq(dev, 0, p9_virtio_intr);
if (IS_ERR(chan->in_vq)) {
err = PTR_ERR(chan->in_vq);
goto free;
}
- chan->out_vq = dev->config->find_vq(dev, NULL);
+ chan->out_vq = dev->config->find_vq(dev, 1, NULL);
if (IS_ERR(chan->out_vq)) {
err = PTR_ERR(chan->out_vq);
goto free_in_vq;
* @ops: pernet operations structure to manipulate
*
* Remove the pernet operations structure from the list to be
- * used when network namespaces are created or destoryed. In
+ * used when network namespaces are created or destroyed. In
* addition run the exit method for all existing network
* namespaces.
*/
* @ops: pernet operations structure to manipulate
*
* Remove the pernet operations structure from the list to be
- * used when network namespaces are created or destoryed. In
+ * used when network namespaces are created or destroyed. In
* addition run the exit method for all existing network
* namespaces.
*/
return elt;
}
+/**
+ * skb_partial_csum_set - set up and verify partial csum values for packet
+ * @skb: the skb to set
+ * @start: the number of bytes after skb->data to start checksumming.
+ * @off: the offset from start to place the checksum.
+ *
+ * For untrusted partially-checksummed packets, we need to make sure the values
+ * for skb->csum_start and skb->csum_offset are valid so we don't oops.
+ *
+ * This function checks and sets those values and skb->ip_summed: if this
+ * returns false you should drop the packet.
+ */
+bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off)
+{
+ if (unlikely(start > skb->len - 2) ||
+ unlikely((int)start + off > skb->len - 2)) {
+ if (net_ratelimit())
+ printk(KERN_WARNING
+ "bad partial csum: csum=%u/%u len=%u\n",
+ start, off, skb->len);
+ return false;
+ }
+ skb->ip_summed = CHECKSUM_PARTIAL;
+ skb->csum_start = skb_headroom(skb) + start;
+ skb->csum_offset = off;
+ return true;
+}
+
EXPORT_SYMBOL(___pskb_trim);
EXPORT_SYMBOL(__kfree_skb);
EXPORT_SYMBOL(kfree_skb);
EXPORT_SYMBOL_GPL(skb_to_sgvec);
EXPORT_SYMBOL_GPL(skb_cow_data);
+EXPORT_SYMBOL_GPL(skb_partial_csum_set);
extern int dccp_connect(struct sock *sk);
extern int dccp_disconnect(struct sock *sk, int flags);
-extern void dccp_hash(struct sock *sk);
-extern void dccp_unhash(struct sock *sk);
extern int dccp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
extern int dccp_setsockopt(struct sock *sk, int level, int optname,
*/
static struct socket *dccp_v4_ctl_socket;
-static int dccp_v4_get_port(struct sock *sk, const unsigned short snum)
-{
- return inet_csk_get_port(&dccp_hashinfo, sk, snum,
- inet_csk_bind_conflict);
-}
-
int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
struct inet_sock *inet = inet_sk(sk);
dccp_sync_mss(newsk, dst_mtu(dst));
- __inet_hash_nolisten(&dccp_hashinfo, newsk);
- __inet_inherit_port(&dccp_hashinfo, sk, newsk);
+ __inet_hash_nolisten(newsk);
+ __inet_inherit_port(sk, newsk);
return newsk;
.getsockopt = ip_getsockopt,
.addr2sockaddr = inet_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in),
+ .bind_conflict = inet_csk_bind_conflict,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ip_setsockopt,
.compat_getsockopt = compat_ip_getsockopt,
.sendmsg = dccp_sendmsg,
.recvmsg = dccp_recvmsg,
.backlog_rcv = dccp_v4_do_rcv,
- .hash = dccp_hash,
- .unhash = dccp_unhash,
+ .hash = inet_hash,
+ .unhash = inet_unhash,
.accept = inet_csk_accept,
- .get_port = dccp_v4_get_port,
+ .get_port = inet_csk_get_port,
.shutdown = dccp_shutdown,
.destroy = dccp_destroy_sock,
.orphan_count = &dccp_orphan_count,
.obj_size = sizeof(struct dccp_sock),
.rsk_prot = &dccp_request_sock_ops,
.twsk_prot = &dccp_timewait_sock_ops,
+ .hashinfo = &dccp_hashinfo,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_dccp_setsockopt,
.compat_getsockopt = compat_dccp_getsockopt,
static struct inet_connection_sock_af_ops dccp_ipv6_mapped;
static struct inet_connection_sock_af_ops dccp_ipv6_af_ops;
-static int dccp_v6_get_port(struct sock *sk, unsigned short snum)
-{
- return inet_csk_get_port(&dccp_hashinfo, sk, snum,
- inet6_csk_bind_conflict);
-}
-
static void dccp_v6_hash(struct sock *sk)
{
if (sk->sk_state != DCCP_CLOSED) {
if (inet_csk(sk)->icsk_af_ops == &dccp_ipv6_mapped) {
- dccp_hash(sk);
+ inet_hash(sk);
return;
}
local_bh_disable();
- __inet6_hash(&dccp_hashinfo, sk);
+ __inet6_hash(sk);
local_bh_enable();
}
}
newinet->daddr = newinet->saddr = newinet->rcv_saddr = LOOPBACK4_IPV6;
- __inet6_hash(&dccp_hashinfo, newsk);
- inet_inherit_port(&dccp_hashinfo, sk, newsk);
+ __inet6_hash(newsk);
+ inet_inherit_port(sk, newsk);
return newsk;
.getsockopt = ipv6_getsockopt,
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6),
+ .bind_conflict = inet6_csk_bind_conflict,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
.recvmsg = dccp_recvmsg,
.backlog_rcv = dccp_v6_do_rcv,
.hash = dccp_v6_hash,
- .unhash = dccp_unhash,
+ .unhash = inet_unhash,
.accept = inet_csk_accept,
- .get_port = dccp_v6_get_port,
+ .get_port = inet_csk_get_port,
.shutdown = dccp_shutdown,
.destroy = dccp_v6_destroy_sock,
.orphan_count = &dccp_orphan_count,
.obj_size = sizeof(struct dccp6_sock),
.rsk_prot = &dccp6_request_sock_ops,
.twsk_prot = &dccp6_timewait_sock_ops,
+ .hashinfo = &dccp_hashinfo,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_dccp_setsockopt,
.compat_getsockopt = compat_dccp_getsockopt,
sk->sk_prot->unhash(sk);
if (inet_csk(sk)->icsk_bind_hash != NULL &&
!(sk->sk_userlocks & SOCK_BINDPORT_LOCK))
- inet_put_port(&dccp_hashinfo, sk);
+ inet_put_port(sk);
/* fall through */
default:
if (oldstate == DCCP_OPEN)
EXPORT_SYMBOL_GPL(dccp_state_name);
-void dccp_hash(struct sock *sk)
-{
- inet_hash(&dccp_hashinfo, sk);
-}
-
-EXPORT_SYMBOL_GPL(dccp_hash);
-
-void dccp_unhash(struct sock *sk)
-{
- inet_unhash(&dccp_hashinfo, sk);
-}
-
-EXPORT_SYMBOL_GPL(dccp_unhash);
-
int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
{
struct dccp_sock *dp = dccp_sk(sk);
/* Clean up a referenced DCCP bind bucket. */
if (inet_csk(sk)->icsk_bind_hash != NULL)
- inet_put_port(&dccp_hashinfo, sk);
+ inet_put_port(sk);
kfree(dp->dccps_service_list);
dp->dccps_service_list = NULL;
/* Obtain a reference to a local port for the given sock,
* if snum is zero it means select any available local port.
*/
-int inet_csk_get_port(struct inet_hashinfo *hashinfo,
- struct sock *sk, unsigned short snum,
- int (*bind_conflict)(const struct sock *sk,
- const struct inet_bind_bucket *tb))
+int inet_csk_get_port(struct sock *sk, unsigned short snum)
{
+ struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
struct inet_bind_hashbucket *head;
struct hlist_node *node;
struct inet_bind_bucket *tb;
goto success;
} else {
ret = 1;
- if (bind_conflict(sk, tb))
+ if (inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb))
goto fail_unlock;
}
}
/*
* Get rid of any references to a local port held by the given sock.
*/
-static void __inet_put_port(struct inet_hashinfo *hashinfo, struct sock *sk)
+static void __inet_put_port(struct sock *sk)
{
+ struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
const int bhash = inet_bhashfn(inet_sk(sk)->num, hashinfo->bhash_size);
struct inet_bind_hashbucket *head = &hashinfo->bhash[bhash];
struct inet_bind_bucket *tb;
spin_unlock(&head->lock);
}
-void inet_put_port(struct inet_hashinfo *hashinfo, struct sock *sk)
+void inet_put_port(struct sock *sk)
{
local_bh_disable();
- __inet_put_port(hashinfo, sk);
+ __inet_put_port(sk);
local_bh_enable();
}
inet->dport);
}
-void __inet_hash_nolisten(struct inet_hashinfo *hashinfo, struct sock *sk)
+void __inet_hash_nolisten(struct sock *sk)
{
+ struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
struct hlist_head *list;
rwlock_t *lock;
struct inet_ehash_bucket *head;
}
EXPORT_SYMBOL_GPL(__inet_hash_nolisten);
-void __inet_hash(struct inet_hashinfo *hashinfo, struct sock *sk)
+static void __inet_hash(struct sock *sk)
{
+ struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
struct hlist_head *list;
rwlock_t *lock;
if (sk->sk_state != TCP_LISTEN) {
- __inet_hash_nolisten(hashinfo, sk);
+ __inet_hash_nolisten(sk);
return;
}
write_unlock(lock);
wake_up(&hashinfo->lhash_wait);
}
-EXPORT_SYMBOL_GPL(__inet_hash);
+
+void inet_hash(struct sock *sk)
+{
+ if (sk->sk_state != TCP_CLOSE) {
+ local_bh_disable();
+ __inet_hash(sk);
+ local_bh_enable();
+ }
+}
+EXPORT_SYMBOL_GPL(inet_hash);
+
+void inet_unhash(struct sock *sk)
+{
+ rwlock_t *lock;
+ struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
+
+ if (sk_unhashed(sk))
+ goto out;
+
+ if (sk->sk_state == TCP_LISTEN) {
+ local_bh_disable();
+ inet_listen_wlock(hashinfo);
+ lock = &hashinfo->lhash_lock;
+ } else {
+ lock = inet_ehash_lockp(hashinfo, sk->sk_hash);
+ write_lock_bh(lock);
+ }
+
+ if (__sk_del_node_init(sk))
+ sock_prot_inuse_add(sk->sk_prot, -1);
+ write_unlock_bh(lock);
+out:
+ if (sk->sk_state == TCP_LISTEN)
+ wake_up(&hashinfo->lhash_wait);
+}
+EXPORT_SYMBOL_GPL(inet_unhash);
int __inet_hash_connect(struct inet_timewait_death_row *death_row,
struct sock *sk,
int (*check_established)(struct inet_timewait_death_row *,
struct sock *, __u16, struct inet_timewait_sock **),
- void (*hash)(struct inet_hashinfo *, struct sock *))
+ void (*hash)(struct sock *sk))
{
struct inet_hashinfo *hinfo = death_row->hashinfo;
const unsigned short snum = inet_sk(sk)->num;
inet_bind_hash(sk, tb, port);
if (sk_unhashed(sk)) {
inet_sk(sk)->sport = htons(port);
- hash(hinfo, sk);
+ hash(sk);
}
spin_unlock(&head->lock);
tb = inet_csk(sk)->icsk_bind_hash;
spin_lock_bh(&head->lock);
if (sk_head(&tb->owners) == sk && !sk->sk_bind_node.next) {
- hash(hinfo, sk);
+ hash(sk);
spin_unlock_bh(&head->lock);
return 0;
} else {
sk->sk_prot->unhash(sk);
if (inet_csk(sk)->icsk_bind_hash &&
!(sk->sk_userlocks & SOCK_BINDPORT_LOCK))
- inet_put_port(&tcp_hashinfo, sk);
+ inet_put_port(sk);
/* fall through */
default:
if (oldstate==TCP_ESTABLISHED)
.lhash_wait = __WAIT_QUEUE_HEAD_INITIALIZER(tcp_hashinfo.lhash_wait),
};
-static int tcp_v4_get_port(struct sock *sk, unsigned short snum)
-{
- return inet_csk_get_port(&tcp_hashinfo, sk, snum,
- inet_csk_bind_conflict);
-}
-
-static void tcp_v4_hash(struct sock *sk)
-{
- inet_hash(&tcp_hashinfo, sk);
-}
-
-void tcp_unhash(struct sock *sk)
-{
- inet_unhash(&tcp_hashinfo, sk);
-}
-
static inline __u32 tcp_v4_init_sequence(struct sk_buff *skb)
{
return secure_tcp_sequence_number(ip_hdr(skb)->daddr,
}
#endif
- __inet_hash_nolisten(&tcp_hashinfo, newsk);
- __inet_inherit_port(&tcp_hashinfo, sk, newsk);
+ __inet_hash_nolisten(newsk);
+ __inet_inherit_port(sk, newsk);
return newsk;
.getsockopt = ip_getsockopt,
.addr2sockaddr = inet_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in),
+ .bind_conflict = inet_csk_bind_conflict,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ip_setsockopt,
.compat_getsockopt = compat_ip_getsockopt,
/* Clean up a referenced TCP bind bucket. */
if (inet_csk(sk)->icsk_bind_hash)
- inet_put_port(&tcp_hashinfo, sk);
+ inet_put_port(sk);
/*
* If sendmsg cached page exists, toss it.
.getsockopt = tcp_getsockopt,
.recvmsg = tcp_recvmsg,
.backlog_rcv = tcp_v4_do_rcv,
- .hash = tcp_v4_hash,
- .unhash = tcp_unhash,
- .get_port = tcp_v4_get_port,
+ .hash = inet_hash,
+ .unhash = inet_unhash,
+ .get_port = inet_csk_get_port,
.enter_memory_pressure = tcp_enter_memory_pressure,
.sockets_allocated = &tcp_sockets_allocated,
.orphan_count = &tcp_orphan_count,
.obj_size = sizeof(struct tcp_sock),
.twsk_prot = &tcp_timewait_sock_ops,
.rsk_prot = &tcp_request_sock_ops,
+ .hashinfo = &tcp_hashinfo,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_tcp_setsockopt,
.compat_getsockopt = compat_tcp_getsockopt,
EXPORT_SYMBOL(ipv4_specific);
EXPORT_SYMBOL(tcp_hashinfo);
EXPORT_SYMBOL(tcp_prot);
-EXPORT_SYMBOL(tcp_unhash);
EXPORT_SYMBOL(tcp_v4_conn_request);
EXPORT_SYMBOL(tcp_v4_connect);
EXPORT_SYMBOL(tcp_v4_do_rcv);
#include <net/inet6_hashtables.h>
#include <net/ip.h>
-void __inet6_hash(struct inet_hashinfo *hashinfo,
- struct sock *sk)
+void __inet6_hash(struct sock *sk)
{
+ struct inet_hashinfo *hashinfo = sk->sk_prot->hashinfo;
struct hlist_head *list;
rwlock_t *lock;
static struct tcp_sock_af_ops tcp_sock_ipv6_mapped_specific;
#endif
-static int tcp_v6_get_port(struct sock *sk, unsigned short snum)
-{
- return inet_csk_get_port(&tcp_hashinfo, sk, snum,
- inet6_csk_bind_conflict);
-}
-
static void tcp_v6_hash(struct sock *sk)
{
if (sk->sk_state != TCP_CLOSE) {
return;
}
local_bh_disable();
- __inet6_hash(&tcp_hashinfo, sk);
+ __inet6_hash(sk);
local_bh_enable();
}
}
}
#endif
- __inet6_hash(&tcp_hashinfo, newsk);
- inet_inherit_port(&tcp_hashinfo, sk, newsk);
+ __inet6_hash(newsk);
+ inet_inherit_port(sk, newsk);
return newsk;
.getsockopt = ipv6_getsockopt,
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6),
+ .bind_conflict = inet6_csk_bind_conflict,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
.getsockopt = ipv6_getsockopt,
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6),
+ .bind_conflict = inet6_csk_bind_conflict,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
.recvmsg = tcp_recvmsg,
.backlog_rcv = tcp_v6_do_rcv,
.hash = tcp_v6_hash,
- .unhash = tcp_unhash,
- .get_port = tcp_v6_get_port,
+ .unhash = inet_unhash,
+ .get_port = inet_csk_get_port,
.enter_memory_pressure = tcp_enter_memory_pressure,
.sockets_allocated = &tcp_sockets_allocated,
.memory_allocated = &tcp_memory_allocated,
.obj_size = sizeof(struct tcp6_sock),
.twsk_prot = &tcp6_timewait_sock_ops,
.rsk_prot = &tcp6_request_sock_ops,
+ .hashinfo = &tcp_hashinfo,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_tcp_setsockopt,
.compat_getsockopt = compat_tcp_getsockopt,
Say N unless you know you need this.
+config MAC80211_DEBUG_PACKET_ALIGNMENT
+ bool "Enable packet alignment debugging"
+ depends on MAC80211
+ help
+ This option is recommended for driver authors and strongly
+ discouraged for everybody else, it will trigger a warning
+ when a driver hands mac80211 a buffer that is aligned in
+ a way that will cause problems with the IP stack on some
+ architectures.
+
+ Say N unless you're writing a mac80211 based driver.
+
config MAC80211_DEBUG
bool "Enable debugging output"
depends on MAC80211
ret = rc80211_simple_init();
if (ret)
- goto fail;
+ goto out;
ret = rc80211_pid_init();
if (ret)
- goto fail_simple;
+ goto out_cleanup_simple;
ret = ieee80211_wme_register();
if (ret) {
printk(KERN_DEBUG "ieee80211_init: failed to "
"initialize WME (err=%d)\n", ret);
- goto fail_pid;
+ goto out_cleanup_pid;
}
ieee80211_debugfs_netdev_init();
return 0;
- fail_pid:
- rc80211_simple_exit();
- fail_simple:
+ out_cleanup_pid:
rc80211_pid_exit();
- fail:
+ out_cleanup_simple:
+ rc80211_simple_exit();
+ out:
return ret;
}
return ieee80211_rate_control_register(&mac80211_rcpid);
}
-void __exit rc80211_pid_exit(void)
+void rc80211_pid_exit(void)
{
ieee80211_rate_control_unregister(&mac80211_rcpid);
}
return ieee80211_rate_control_register(&mac80211_rcsimple);
}
-void __exit rc80211_simple_exit(void)
+void rc80211_simple_exit(void)
{
ieee80211_rate_control_unregister(&mac80211_rcsimple);
}
return load;
}
+#ifdef CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT
static ieee80211_txrx_result
ieee80211_rx_h_verify_ip_alignment(struct ieee80211_txrx_data *rx)
{
int hdrlen;
+ if (!WLAN_FC_DATA_PRESENT(rx->fc))
+ return TXRX_CONTINUE;
+
/*
* Drivers are required to align the payload data in a way that
* guarantees that the contained IP header is aligned to a four-
return TXRX_CONTINUE;
}
+#endif
ieee80211_rx_handler ieee80211_rx_pre_handlers[] =
{
ieee80211_rx_h_parse_qos,
+#ifdef CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT
ieee80211_rx_h_verify_ip_alignment,
+#endif
NULL
};
* rfkill_free - Mark rfkill structure for deletion
* @rfkill: rfkill structure to be destroyed
*
- * Decrements reference count of rfkill structure so it is destoryed.
+ * Decrements reference count of rfkill structure so it is destroyed.
* Note that rfkill_free() should _not_ be called after rfkill_unregister().
*/
void rfkill_free(struct rfkill *rfkill)
*
* This means that if we only want to abort associations
* in an authenticated way (i.e AUTH+ABORT), then we
- * can't destory this association just becuase the packet
+ * can't destroy this association just becuase the packet
* was malformed.
*/
if (sctp_auth_recv_cid(SCTP_CID_ABORT, asoc))
*
* This means that if we only want to abort associations
* in an authenticated way (i.e AUTH+ABORT), then we
- * can't destory this association just becuase the packet
+ * can't destroy this association just becuase the packet
* was malformed.
*/
if (sctp_auth_recv_cid(SCTP_CID_ABORT, asoc))
return;
if (!conf_read(dialog_input_result)) {
set_config_filename(dialog_input_result);
+ sym_set_change_count(1);
return;
}
show_textbox(NULL, _("File does not exist!"), 5, 38);
prop_warn(prop,
"config symbol '%s' uses select, but is "
"not boolean or tristate", sym->name);
- else if (sym2->type == S_UNKNOWN)
- prop_warn(prop,
- "'select' used by config symbol '%s' "
- "refers to undefined symbol '%s'",
- sym->name, sym2->name);
- else if (sym2->type != S_BOOLEAN && sym2->type != S_TRISTATE)
+ else if (sym2->type != S_UNKNOWN &&
+ sym2->type != S_BOOLEAN &&
+ sym2->type != S_TRISTATE)
prop_warn(prop,
"'%s' has wrong type. 'select' only "
"accept arguments of boolean and "
/* Do not export init/exit functions or data */
{
.fromsec = { "__ksymtab*", NULL },
- .tosec = { ALL_INIT_SECTIONS, ALL_EXIT_SECTIONS, NULL },
+ .tosec = { INIT_SECTIONS, EXIT_SECTIONS, NULL },
.mismatch = EXPORT_TO_INIT_EXIT
}
};
to = to_is_func ? "function" : "variable";
to_p = to_is_func ? "()" : "";
+ sec_mismatch_count++;
+ if (!sec_mismatch_verbose)
+ return;
+
fprintf(stderr, "WARNING: %s(%s+0x%llx): Section mismatch in"
" reference from the %s %s%s to the %s %s:%s%s\n",
modname, fromsec, fromaddr, from, fromsym, from_p,
to, tosec, tosym, to_p);
- sec_mismatch_count++;
- if (!sec_mismatch_verbose)
- return;
-
switch (mismatch) {
case TEXT_TO_INIT:
fprintf(stderr,
write_dump(dump_write);
if (sec_mismatch_count && !sec_mismatch_verbose)
fprintf(stderr, "modpost: Found %d section mismatch(es).\n"
- "To see additional details select \"Enable full "
- "Section mismatch analysis\"\n"
- "in the Kernel Hacking menu "
- "(CONFIG_SECTION_MISMATCH).\n", sec_mismatch_count);
+ "To see full details build your kernel with:\n"
+ "'make CONFIG_DEBUG_SECTION_MISMATCH=y'\n",
+ sec_mismatch_count);
return err;
}
# All done with mercurial
exit
fi
+
+# Check for svn and a svn repo.
+if rev=`svn info 2>/dev/null | grep '^Revision'`; then
+ rev=`echo $rev | awk '{print $NF}'`
+ changes=`svn status 2>/dev/null | grep '^[AMD]' | wc -l`
+
+ # Are there uncommitted changes?
+ if [ $changes != 0 ]; then
+ printf -- '-svn%s%s%s' "$rev" -dirty "$changes"
+ else
+ printf -- '-svn%s' "$rev"
+ fi
+
+ # All done with svn
+ exit
+fi
{
struct via_info *card = vma->vm_private_data;
struct via_channel *chan = &card->ch_out;
+ unsigned long max_bufs;
struct page *dmapage;
unsigned long pgoff;
int rd, wr;
rd = card->ch_in.is_mapped;
wr = card->ch_out.is_mapped;
-#ifndef VIA_NDEBUG
- {
- unsigned long max_bufs = chan->frag_number;
- if (rd && wr) max_bufs *= 2;
- /* via_dsp_mmap() should ensure this */
- assert (pgoff < max_bufs);
- }
-#endif
+ max_bufs = chan->frag_number;
+ if (rd && wr)
+ max_bufs *= 2;
+ if (pgoff >= max_bufs)
+ return NOPAGE_SIGBUS;
/* if full-duplex (read+write) and we have two sets of bufs,
* then the playback buffers come first, sez soundcard.c */
us428->us428ctls_sharedmem->CtlSnapShotLast = -2;
}
area->vm_ops = &us428ctls_vm_ops;
- area->vm_flags |= VM_RESERVED;
+ area->vm_flags |= VM_RESERVED | VM_DONTEXPAND;
area->vm_private_data = hw->private_data;
return 0;
}
return -ENODEV;
}
area->vm_ops = &snd_usX2Y_hwdep_pcm_vm_ops;
- area->vm_flags |= VM_RESERVED;
+ area->vm_flags |= VM_RESERVED | VM_DONTEXPAND;
area->vm_private_data = hw->private_data;
return 0;
}
projects / linux-2.6-omap-h63xx.git / commitdiff