---------------------------
-What: IEEE1394 Audio and Music Data Transmission Protocol driver,
- Connection Management Procedures driver
-When: November 2005
-Files: drivers/ieee1394/{amdtp,cmp}*
-Why: These are incomplete, have never worked, and are better implemented
- in userland via raw1394 (see http://freebob.sourceforge.net/ for
- example.)
-Who: Jody McIntyre <scjody@steamballoon.com>
-
----------------------------
-
What: raw1394: requests of type RAW1394_REQ_ISO_SEND, RAW1394_REQ_ISO_LISTEN
When: November 2005
Why: Deprecated in favour of the new ioctl-based rawiso interface, which is
To compile this driver as a module, say M here: the
module will be called raw1394.
-config IEEE1394_CMP
- tristate "IEC61883-1 Plug support"
- depends on IEEE1394
- help
- This option enables the Connection Management Procedures
- (IEC61883-1) driver, which implements input and output plugs.
-
- To compile this driver as a module, say M here: the
- module will be called cmp.
-
-config IEEE1394_AMDTP
- tristate "IEC61883-6 (Audio transmission) support"
- depends on IEEE1394 && IEEE1394_OHCI1394 && IEEE1394_CMP
- help
- This option enables the Audio & Music Data Transmission Protocol
- (IEC61883-6) driver, which implements audio transmission over
- IEEE1394.
-
- The userspace interface is documented in amdtp.h.
-
- To compile this driver as a module, say M here: the
- module will be called amdtp.
-
endmenu
obj-$(CONFIG_IEEE1394_SBP2) += sbp2.o
obj-$(CONFIG_IEEE1394_DV1394) += dv1394.o
obj-$(CONFIG_IEEE1394_ETH1394) += eth1394.o
-obj-$(CONFIG_IEEE1394_AMDTP) += amdtp.o
-obj-$(CONFIG_IEEE1394_CMP) += cmp.o
quiet_cmd_oui2c = OUI2C $@
cmd_oui2c = $(CONFIG_SHELL) $(srctree)/$(src)/oui2c.sh < $< > $@
return CSR1212_EINVAL;
#endif
- cr = CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ cr = CSR1212_MALLOC(sizeof(*cr));
if (!cr)
return CSR1212_ENOMEM;
case CSR1212_KV_TYPE_LEAF:
if (kv->key.id != CSR1212_KV_ID_EXTENDED_ROM) {
kv->value.leaf.data = CSR1212_MALLOC(quads_to_bytes(kvi_len));
- if (!kv->value.leaf.data)
- {
+ if (!kv->value.leaf.data) {
ret = CSR1212_ENOMEM;
goto fail;
}
cache->next = NULL;
csr->cache_tail = cache;
cache->filled_head =
- CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ CSR1212_MALLOC(sizeof(*cache->filled_head));
if (!cache->filled_head) {
return CSR1212_ENOMEM;
}
/* Now seach read portions of the cache to see if it is there. */
for (cr = cache->filled_head; cr; cr = cr->next) {
if (cache_index < cr->offset_start) {
- newcr = CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ newcr = CSR1212_MALLOC(sizeof(*newcr));
if (!newcr)
return CSR1212_ENOMEM;
if (!cr) {
cr = cache->filled_tail;
- newcr = CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ newcr = CSR1212_MALLOC(sizeof(*newcr));
if (!newcr)
return CSR1212_ENOMEM;
csr->root_kv->valid = 0;
csr->root_kv->next = csr->root_kv;
csr->root_kv->prev = csr->root_kv;
- csr1212_get_keyval(csr, csr->root_kv);
+ ret = _csr1212_read_keyval(csr, csr->root_kv);
+ if (ret != CSR1212_SUCCESS)
+ return ret;
/* Scan through the Root directory finding all extended ROM regions
* and make cache regions for them */
for (dentry = csr->root_kv->value.directory.dentries_head;
dentry; dentry = dentry->next) {
- if (dentry->kv->key.id == CSR1212_KV_ID_EXTENDED_ROM) {
- csr1212_get_keyval(csr, dentry->kv);
-
+ if (dentry->kv->key.id == CSR1212_KV_ID_EXTENDED_ROM &&
+ !dentry->kv->valid) {
+ ret = _csr1212_read_keyval(csr, dentry->kv);
if (ret != CSR1212_SUCCESS)
return ret;
}
{
struct csr1212_csr_rom_cache *cache;
- cache = CSR1212_MALLOC(sizeof(struct csr1212_csr_rom_cache) + size);
+ cache = CSR1212_MALLOC(sizeof(*cache) + size);
if (!cache)
return NULL;
prog->bus_addr = 0;
}
-int dma_prog_region_alloc(struct dma_prog_region *prog, unsigned long n_bytes, struct pci_dev *dev)
+int dma_prog_region_alloc(struct dma_prog_region *prog, unsigned long n_bytes,
+ struct pci_dev *dev)
{
/* round up to page size */
n_bytes = PAGE_ALIGN(n_bytes);
prog->kvirt = pci_alloc_consistent(dev, n_bytes, &prog->bus_addr);
if (!prog->kvirt) {
- printk(KERN_ERR "dma_prog_region_alloc: pci_alloc_consistent() failed\n");
+ printk(KERN_ERR
+ "dma_prog_region_alloc: pci_alloc_consistent() failed\n");
dma_prog_region_free(prog);
return -ENOMEM;
}
void dma_prog_region_free(struct dma_prog_region *prog)
{
if (prog->kvirt) {
- pci_free_consistent(prog->dev, prog->n_pages << PAGE_SHIFT, prog->kvirt, prog->bus_addr);
+ pci_free_consistent(prog->dev, prog->n_pages << PAGE_SHIFT,
+ prog->kvirt, prog->bus_addr);
}
prog->kvirt = NULL;
dma->sglist = NULL;
}
-int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes, struct pci_dev *dev, int direction)
+int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes,
+ struct pci_dev *dev, int direction)
{
unsigned int i;
/* fill scatter/gather list with pages */
for (i = 0; i < dma->n_pages; i++) {
- unsigned long va = (unsigned long) dma->kvirt + (i << PAGE_SHIFT);
+ unsigned long va =
+ (unsigned long)dma->kvirt + (i << PAGE_SHIFT);
dma->sglist[i].page = vmalloc_to_page((void *)va);
dma->sglist[i].length = PAGE_SIZE;
}
/* map sglist to the IOMMU */
- dma->n_dma_pages = pci_map_sg(dev, dma->sglist, dma->n_pages, direction);
+ dma->n_dma_pages =
+ pci_map_sg(dev, dma->sglist, dma->n_pages, direction);
if (dma->n_dma_pages == 0) {
printk(KERN_ERR "dma_region_alloc: pci_map_sg() failed\n");
return 0;
-err:
+ err:
dma_region_free(dma);
return -ENOMEM;
}
void dma_region_free(struct dma_region *dma)
{
if (dma->n_dma_pages) {
- pci_unmap_sg(dma->dev, dma->sglist, dma->n_pages, dma->direction);
+ pci_unmap_sg(dma->dev, dma->sglist, dma->n_pages,
+ dma->direction);
dma->n_dma_pages = 0;
dma->dev = NULL;
}
/* find the scatterlist index and remaining offset corresponding to a
given offset from the beginning of the buffer */
-static inline int dma_region_find(struct dma_region *dma, unsigned long offset, unsigned long *rem)
+static inline int dma_region_find(struct dma_region *dma, unsigned long offset,
+ unsigned long *rem)
{
int i;
unsigned long off = offset;
return i;
}
-dma_addr_t dma_region_offset_to_bus(struct dma_region *dma, unsigned long offset)
+dma_addr_t dma_region_offset_to_bus(struct dma_region * dma,
+ unsigned long offset)
{
unsigned long rem = 0;
- struct scatterlist *sg = &dma->sglist[dma_region_find(dma, offset, &rem)];
+ struct scatterlist *sg =
+ &dma->sglist[dma_region_find(dma, offset, &rem)];
return sg_dma_address(sg) + rem;
}
-void dma_region_sync_for_cpu(struct dma_region *dma, unsigned long offset, unsigned long len)
+void dma_region_sync_for_cpu(struct dma_region *dma, unsigned long offset,
+ unsigned long len)
{
int first, last;
unsigned long rem;
first = dma_region_find(dma, offset, &rem);
last = dma_region_find(dma, offset + len - 1, &rem);
- pci_dma_sync_sg_for_cpu(dma->dev, &dma->sglist[first], last - first + 1, dma->direction);
+ pci_dma_sync_sg_for_cpu(dma->dev, &dma->sglist[first], last - first + 1,
+ dma->direction);
}
-void dma_region_sync_for_device(struct dma_region *dma, unsigned long offset, unsigned long len)
+void dma_region_sync_for_device(struct dma_region *dma, unsigned long offset,
+ unsigned long len)
{
int first, last;
unsigned long rem;
first = dma_region_find(dma, offset, &rem);
last = dma_region_find(dma, offset + len - 1, &rem);
- pci_dma_sync_sg_for_device(dma->dev, &dma->sglist[first], last - first + 1, dma->direction);
+ pci_dma_sync_sg_for_device(dma->dev, &dma->sglist[first],
+ last - first + 1, dma->direction);
}
#ifdef CONFIG_MMU
/* nopage() handler for mmap access */
-static struct page*
-dma_region_pagefault(struct vm_area_struct *area, unsigned long address, int *type)
+static struct page *dma_region_pagefault(struct vm_area_struct *area,
+ unsigned long address, int *type)
{
unsigned long offset;
unsigned long kernel_virt_addr;
struct page *ret = NOPAGE_SIGBUS;
- struct dma_region *dma = (struct dma_region*) area->vm_private_data;
+ struct dma_region *dma = (struct dma_region *)area->vm_private_data;
if (!dma->kvirt)
goto out;
- if ( (address < (unsigned long) area->vm_start) ||
- (address > (unsigned long) area->vm_start + (dma->n_pages << PAGE_SHIFT)) )
+ if ((address < (unsigned long)area->vm_start) ||
+ (address >
+ (unsigned long)area->vm_start + (dma->n_pages << PAGE_SHIFT)))
goto out;
if (type)
*type = VM_FAULT_MINOR;
offset = address - area->vm_start;
- kernel_virt_addr = (unsigned long) dma->kvirt + offset;
- ret = vmalloc_to_page((void*) kernel_virt_addr);
+ kernel_virt_addr = (unsigned long)dma->kvirt + offset;
+ ret = vmalloc_to_page((void *)kernel_virt_addr);
get_page(ret);
-out:
+ out:
return ret;
}
static struct vm_operations_struct dma_region_vm_ops = {
- .nopage = dma_region_pagefault,
+ .nopage = dma_region_pagefault,
};
-int dma_region_mmap(struct dma_region *dma, struct file *file, struct vm_area_struct *vma)
+int dma_region_mmap(struct dma_region *dma, struct file *file,
+ struct vm_area_struct *vma)
{
unsigned long size;
return 0;
}
-#else /* CONFIG_MMU */
+#else /* CONFIG_MMU */
-int dma_region_mmap(struct dma_region *dma, struct file *file, struct vm_area_struct *vma)
+int dma_region_mmap(struct dma_region *dma, struct file *file,
+ struct vm_area_struct *vma)
{
return -EINVAL;
}
-#endif /* CONFIG_MMU */
+#endif /* CONFIG_MMU */
#include "ohci1394.h"
-#ifndef virt_to_page
-#define virt_to_page(x) MAP_NR(x)
-#endif
-
-#ifndef vmalloc_32
-#define vmalloc_32(x) vmalloc(x)
-#endif
-
-
/* DEBUG LEVELS:
0 - no debugging messages
1 - some debugging messages, but none during DMA frame transmission
unsigned long flags;
int i;
- video = kmalloc(sizeof(struct video_card), GFP_KERNEL);
+ video = kzalloc(sizeof(*video), GFP_KERNEL);
if (!video) {
printk(KERN_ERR "dv1394: cannot allocate video_card\n");
goto err;
}
- memset(video, 0, sizeof(struct video_card));
-
video->ohci = ohci;
/* lower 2 bits of id indicate which of four "plugs"
per host */
printk(KERN_ERR "%s:%s[%d]: " fmt "\n", driver_name, __FUNCTION__, __LINE__, ## args)
#define TRACE() printk(KERN_ERR "%s:%s[%d] ---- TRACE\n", driver_name, __FUNCTION__, __LINE__)
-static char version[] __devinitdata =
- "$Rev: 1312 $ Ben Collins <bcollins@debian.org>";
-
struct fragment_info {
struct list_head list;
int offset;
if (!hi)
return -ENOENT;
- new_node = kmalloc(sizeof(struct eth1394_node_ref),
+ new_node = kmalloc(sizeof(*new_node),
in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
if (!new_node)
return -ENOMEM;
- node_info = kmalloc(sizeof(struct eth1394_node_info),
+ node_info = kmalloc(sizeof(*node_info),
in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
if (!node_info) {
kfree(new_node);
node = eth1394_find_node(&priv->ip_node_list, ud);
if (!node) {
- node = kmalloc(sizeof(struct eth1394_node_ref),
+ node = kmalloc(sizeof(*node),
in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
if (!node)
return -ENOMEM;
- node_info = kmalloc(sizeof(struct eth1394_node_info),
+ node_info = kmalloc(sizeof(*node_info),
in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
if (!node_info) {
kfree(node);
struct eth1394_host_info *hi = NULL;
struct net_device *dev = NULL;
struct eth1394_priv *priv;
- static int version_printed = 0;
u64 fifo_addr;
if (!(host->config_roms & HPSB_CONFIG_ROM_ENTRY_IP1394))
if (fifo_addr == ~0ULL)
goto out;
- if (version_printed++ == 0)
- ETH1394_PRINT_G (KERN_INFO, "%s\n", version);
-
/* We should really have our own alloc_hpsbdev() function in
* net_init.c instead of calling the one for ethernet then hijacking
* it for ourselves. That way we'd be a real networking device. */
}
}
- new = kmalloc(sizeof(struct fragment_info), GFP_ATOMIC);
+ new = kmalloc(sizeof(*new), GFP_ATOMIC);
if (!new)
return -ENOMEM;
{
struct partial_datagram *new;
- new = kmalloc(sizeof(struct partial_datagram), GFP_ATOMIC);
+ new = kmalloc(sizeof(*new), GFP_ATOMIC);
if (!new)
return -ENOMEM;
static void ether1394_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
strcpy (info->driver, driver_name);
- strcpy (info->version, "$Rev: 1312 $");
/* FIXME XXX provide sane businfo */
strcpy (info->bus_info, "ieee1394");
}
return NULL;
}
- hi = kmalloc(sizeof(*hi) + data_size, GFP_ATOMIC);
+ hi = kzalloc(sizeof(*hi) + data_size, GFP_ATOMIC);
if (!hi)
return NULL;
- memset(hi, 0, sizeof(*hi) + data_size);
-
if (data_size) {
data = hi->data = hi + 1;
hi->size = data_size;
return retval;
}
- as = (struct hpsb_address_serve *)
- kmalloc(sizeof(struct hpsb_address_serve), GFP_KERNEL);
- if (as == NULL) {
+ as = kmalloc(sizeof(*as), GFP_KERNEL);
+ if (!as)
return retval;
- }
INIT_LIST_HEAD(&as->host_list);
INIT_LIST_HEAD(&as->hl_list);
return 0;
}
- as = (struct hpsb_address_serve *)
- kmalloc(sizeof(struct hpsb_address_serve), GFP_ATOMIC);
- if (as == NULL) {
- return 0;
- }
+ as = kmalloc(sizeof(*as), GFP_ATOMIC);
+ if (!as)
+ return 0;
INIT_LIST_HEAD(&as->host_list);
INIT_LIST_HEAD(&as->hl_list);
static int dummy_transmit_packet(struct hpsb_host *h, struct hpsb_packet *p)
{
- return 0;
+ return 0;
}
static int dummy_devctl(struct hpsb_host *h, enum devctl_cmd c, int arg)
{
- return -1;
+ return -1;
}
static int dummy_isoctl(struct hpsb_iso *iso, enum isoctl_cmd command, unsigned long arg)
}
static struct hpsb_host_driver dummy_driver = {
- .transmit_packet = dummy_transmit_packet,
- .devctl = dummy_devctl,
- .isoctl = dummy_isoctl
+ .transmit_packet = dummy_transmit_packet,
+ .devctl = dummy_devctl,
+ .isoctl = dummy_isoctl
};
static int alloc_hostnum_cb(struct hpsb_host *host, void *__data)
struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra,
struct device *dev)
{
- struct hpsb_host *h;
+ struct hpsb_host *h;
int i;
int hostnum = 0;
- h = kmalloc(sizeof(struct hpsb_host) + extra, SLAB_KERNEL);
- if (!h) return NULL;
- memset(h, 0, sizeof(struct hpsb_host) + extra);
+ h = kzalloc(sizeof(*h) + extra, SLAB_KERNEL);
+ if (!h)
+ return NULL;
h->csr.rom = csr1212_create_csr(&csr_bus_ops, CSR_BUS_INFO_SIZE, h);
if (!h->csr.rom) {
}
h->hostdata = h + 1;
- h->driver = drv;
+ h->driver = drv;
skb_queue_head_init(&h->pending_packet_queue);
INIT_LIST_HEAD(&h->addr_space);
h->timeout.function = abort_timedouts;
h->timeout_interval = HZ / 20; // 50ms by default
- h->topology_map = h->csr.topology_map + 3;
- h->speed_map = (u8 *)(h->csr.speed_map + 2);
+ h->topology_map = h->csr.topology_map + 3;
+ h->speed_map = (u8 *)(h->csr.speed_map + 2);
down(&host_num_alloc);
void hpsb_remove_host(struct hpsb_host *host)
{
- host->is_shutdown = 1;
+ host->is_shutdown = 1;
cancel_delayed_work(&host->delayed_reset);
flush_scheduled_work();
- host->driver = &dummy_driver;
+ host->driver = &dummy_driver;
- highlevel_remove_host(host);
+ highlevel_remove_host(host);
hpsb_remove_extra_config_roms(host);
struct hpsb_iso;
struct hpsb_host {
- struct list_head host_list;
+ struct list_head host_list;
- void *hostdata;
+ void *hostdata;
- atomic_t generation;
+ atomic_t generation;
struct sk_buff_head pending_packet_queue;
struct timer_list timeout;
unsigned long timeout_interval;
- unsigned char iso_listen_count[64];
+ unsigned char iso_listen_count[64];
- int node_count; /* number of identified nodes on this bus */
- int selfid_count; /* total number of SelfIDs received */
+ int node_count; /* number of identified nodes on this bus */
+ int selfid_count; /* total number of SelfIDs received */
int nodes_active; /* number of nodes that are actually active */
- nodeid_t node_id; /* node ID of this host */
- nodeid_t irm_id; /* ID of this bus' isochronous resource manager */
- nodeid_t busmgr_id; /* ID of this bus' bus manager */
+ nodeid_t node_id; /* node ID of this host */
+ nodeid_t irm_id; /* ID of this bus' isochronous resource manager */
+ nodeid_t busmgr_id; /* ID of this bus' bus manager */
- /* this nodes state */
- unsigned in_bus_reset:1;
- unsigned is_shutdown:1;
+ /* this nodes state */
+ unsigned in_bus_reset:1;
+ unsigned is_shutdown:1;
unsigned resume_packet_sent:1;
- /* this nodes' duties on the bus */
- unsigned is_root:1;
- unsigned is_cycmst:1;
- unsigned is_irm:1;
- unsigned is_busmgr:1;
+ /* this nodes' duties on the bus */
+ unsigned is_root:1;
+ unsigned is_cycmst:1;
+ unsigned is_irm:1;
+ unsigned is_busmgr:1;
- int reset_retries;
- quadlet_t *topology_map;
- u8 *speed_map;
- struct csr_control csr;
+ int reset_retries;
+ quadlet_t *topology_map;
+ u8 *speed_map;
+ struct csr_control csr;
/* Per node tlabel pool allocation */
struct hpsb_tlabel_pool tpool[64];
- struct hpsb_host_driver *driver;
+ struct hpsb_host_driver *driver;
struct pci_dev *pdev;
enum devctl_cmd {
- /* Host is requested to reset its bus and cancel all outstanding async
- * requests. If arg == 1, it shall also attempt to become root on the
- * bus. Return void. */
- RESET_BUS,
-
- /* Arg is void, return value is the hardware cycle counter value. */
- GET_CYCLE_COUNTER,
-
- /* Set the hardware cycle counter to the value in arg, return void.
- * FIXME - setting is probably not required. */
- SET_CYCLE_COUNTER,
-
- /* Configure hardware for new bus ID in arg, return void. */
- SET_BUS_ID,
-
- /* If arg true, start sending cycle start packets, stop if arg == 0.
- * Return void. */
- ACT_CYCLE_MASTER,
-
- /* Cancel all outstanding async requests without resetting the bus.
- * Return void. */
- CANCEL_REQUESTS,
-
- /* Start or stop receiving isochronous channel in arg. Return void.
- * This acts as an optimization hint, hosts are not required not to
- * listen on unrequested channels. */
- ISO_LISTEN_CHANNEL,
- ISO_UNLISTEN_CHANNEL
+ /* Host is requested to reset its bus and cancel all outstanding async
+ * requests. If arg == 1, it shall also attempt to become root on the
+ * bus. Return void. */
+ RESET_BUS,
+
+ /* Arg is void, return value is the hardware cycle counter value. */
+ GET_CYCLE_COUNTER,
+
+ /* Set the hardware cycle counter to the value in arg, return void.
+ * FIXME - setting is probably not required. */
+ SET_CYCLE_COUNTER,
+
+ /* Configure hardware for new bus ID in arg, return void. */
+ SET_BUS_ID,
+
+ /* If arg true, start sending cycle start packets, stop if arg == 0.
+ * Return void. */
+ ACT_CYCLE_MASTER,
+
+ /* Cancel all outstanding async requests without resetting the bus.
+ * Return void. */
+ CANCEL_REQUESTS,
+
+ /* Start or stop receiving isochronous channel in arg. Return void.
+ * This acts as an optimization hint, hosts are not required not to
+ * listen on unrequested channels. */
+ ISO_LISTEN_CHANNEL,
+ ISO_UNLISTEN_CHANNEL
};
enum isoctl_cmd {
};
enum reset_types {
- /* 166 microsecond reset -- only type of reset available on
- non-1394a capable controllers */
- LONG_RESET,
+ /* 166 microsecond reset -- only type of reset available on
+ non-1394a capable controllers */
+ LONG_RESET,
- /* Short (arbitrated) reset -- only available on 1394a capable
- controllers */
- SHORT_RESET,
+ /* Short (arbitrated) reset -- only available on 1394a capable
+ controllers */
+ SHORT_RESET,
/* Variants that set force_root before issueing the bus reset */
LONG_RESET_FORCE_ROOT, SHORT_RESET_FORCE_ROOT,
* reads to the ConfigROM on its own. */
void (*set_hw_config_rom) (struct hpsb_host *host, quadlet_t *config_rom);
- /* This function shall implement packet transmission based on
- * packet->type. It shall CRC both parts of the packet (unless
- * packet->type == raw) and do byte-swapping as necessary or instruct
- * the hardware to do so. It can return immediately after the packet
- * was queued for sending. After sending, hpsb_sent_packet() has to be
- * called. Return 0 on success, negative errno on failure.
- * NOTE: The function must be callable in interrupt context.
- */
- int (*transmit_packet) (struct hpsb_host *host,
- struct hpsb_packet *packet);
-
- /* This function requests miscellanous services from the driver, see
- * above for command codes and expected actions. Return -1 for unknown
- * command, though that should never happen.
- */
- int (*devctl) (struct hpsb_host *host, enum devctl_cmd command, int arg);
+ /* This function shall implement packet transmission based on
+ * packet->type. It shall CRC both parts of the packet (unless
+ * packet->type == raw) and do byte-swapping as necessary or instruct
+ * the hardware to do so. It can return immediately after the packet
+ * was queued for sending. After sending, hpsb_sent_packet() has to be
+ * called. Return 0 on success, negative errno on failure.
+ * NOTE: The function must be callable in interrupt context.
+ */
+ int (*transmit_packet) (struct hpsb_host *host,
+ struct hpsb_packet *packet);
+
+ /* This function requests miscellanous services from the driver, see
+ * above for command codes and expected actions. Return -1 for unknown
+ * command, though that should never happen.
+ */
+ int (*devctl) (struct hpsb_host *host, enum devctl_cmd command, int arg);
/* ISO transmission/reception functions. Return 0 on success, -1
* (or -EXXX errno code) on failure. If the low-level driver does not
*/
int (*isoctl) (struct hpsb_iso *iso, enum isoctl_cmd command, unsigned long arg);
- /* This function is mainly to redirect local CSR reads/locks to the iso
- * management registers (bus manager id, bandwidth available, channels
- * available) to the hardware registers in OHCI. reg is 0,1,2,3 for bus
- * mgr, bwdth avail, ch avail hi, ch avail lo respectively (the same ids
- * as OHCI uses). data and compare are the new data and expected data
- * respectively, return value is the old value.
- */
- quadlet_t (*hw_csr_reg) (struct hpsb_host *host, int reg,
- quadlet_t data, quadlet_t compare);
+ /* This function is mainly to redirect local CSR reads/locks to the iso
+ * management registers (bus manager id, bandwidth available, channels
+ * available) to the hardware registers in OHCI. reg is 0,1,2,3 for bus
+ * mgr, bwdth avail, ch avail hi, ch avail lo respectively (the same ids
+ * as OHCI uses). data and compare are the new data and expected data
+ * respectively, return value is the old value.
+ */
+ quadlet_t (*hw_csr_reg) (struct hpsb_host *host, int reg,
+ quadlet_t data, quadlet_t compare);
};
#include <linux/ioctl.h>
#include <linux/types.h>
-
-/* AMDTP Gets 6 */
-#define AMDTP_IOC_CHANNEL _IOW('#', 0x00, struct amdtp_ioctl)
-#define AMDTP_IOC_PLUG _IOW('#', 0x01, struct amdtp_ioctl)
-#define AMDTP_IOC_PING _IOW('#', 0x02, struct amdtp_ioctl)
-#define AMDTP_IOC_ZAP _IO ('#', 0x03)
-
-
/* DV1394 Gets 10 */
/* Get the driver ready to transmit video. pass a struct dv1394_init* as
extern const char *hpsb_speedto_str[];
+/* 1394a cable PHY packets */
#define SELFID_PWRCL_NO_POWER 0x0
#define SELFID_PWRCL_PROVIDE_15W 0x1
#define SELFID_PWRCL_PROVIDE_30W 0x2
#define SELFID_PORT_NCONN 0x1
#define SELFID_PORT_NONE 0x0
+#define PHYPACKET_LINKON 0x40000000
+#define PHYPACKET_PHYCONFIG_R 0x00800000
+#define PHYPACKET_PHYCONFIG_T 0x00400000
+#define EXTPHYPACKET_TYPE_PING 0x00000000
+#define EXTPHYPACKET_TYPE_REMOTEACCESS_BASE 0x00040000
+#define EXTPHYPACKET_TYPE_REMOTEACCESS_PAGED 0x00140000
+#define EXTPHYPACKET_TYPE_REMOTEREPLY_BASE 0x000C0000
+#define EXTPHYPACKET_TYPE_REMOTEREPLY_PAGED 0x001C0000
+#define EXTPHYPACKET_TYPE_REMOTECOMMAND 0x00200000
+#define EXTPHYPACKET_TYPE_REMOTECONFIRMATION 0x00280000
+#define EXTPHYPACKET_TYPE_RESUME 0x003C0000
-/* 1394a PHY bitmasks */
+#define EXTPHYPACKET_TYPEMASK 0xC0FC0000
+
+#define PHYPACKET_PORT_SHIFT 24
+#define PHYPACKET_GAPCOUNT_SHIFT 16
+
+/* 1394a PHY register map bitmasks */
#define PHY_00_PHYSICAL_ID 0xFC
#define PHY_00_R 0x02 /* Root */
#define PHY_00_PS 0x01 /* Power Status*/
int hpsb_reset_bus(struct hpsb_host *host, int type)
{
- if (!host->in_bus_reset) {
- host->driver->devctl(host, RESET_BUS, type);
- return 0;
- } else {
- return 1;
- }
+ if (!host->in_bus_reset) {
+ host->driver->devctl(host, RESET_BUS, type);
+ return 0;
+ } else {
+ return 1;
+ }
}
int hpsb_bus_reset(struct hpsb_host *host)
{
- if (host->in_bus_reset) {
- HPSB_NOTICE("%s called while bus reset already in progress",
+ if (host->in_bus_reset) {
+ HPSB_NOTICE("%s called while bus reset already in progress",
__FUNCTION__);
- return 1;
- }
+ return 1;
+ }
- abort_requests(host);
- host->in_bus_reset = 1;
- host->irm_id = -1;
+ abort_requests(host);
+ host->in_bus_reset = 1;
+ host->irm_id = -1;
host->is_irm = 0;
- host->busmgr_id = -1;
+ host->busmgr_id = -1;
host->is_busmgr = 0;
host->is_cycmst = 0;
- host->node_count = 0;
- host->selfid_count = 0;
+ host->node_count = 0;
+ host->selfid_count = 0;
- return 0;
+ return 0;
}
*/
static int check_selfids(struct hpsb_host *host)
{
- int nodeid = -1;
- int rest_of_selfids = host->selfid_count;
- struct selfid *sid = (struct selfid *)host->topology_map;
- struct ext_selfid *esid;
- int esid_seq = 23;
+ int nodeid = -1;
+ int rest_of_selfids = host->selfid_count;
+ struct selfid *sid = (struct selfid *)host->topology_map;
+ struct ext_selfid *esid;
+ int esid_seq = 23;
host->nodes_active = 0;
- while (rest_of_selfids--) {
- if (!sid->extended) {
- nodeid++;
- esid_seq = 0;
+ while (rest_of_selfids--) {
+ if (!sid->extended) {
+ nodeid++;
+ esid_seq = 0;
- if (sid->phy_id != nodeid) {
- HPSB_INFO("SelfIDs failed monotony check with "
- "%d", sid->phy_id);
- return 0;
- }
+ if (sid->phy_id != nodeid) {
+ HPSB_INFO("SelfIDs failed monotony check with "
+ "%d", sid->phy_id);
+ return 0;
+ }
if (sid->link_active) {
host->nodes_active++;
if (sid->contender)
host->irm_id = LOCAL_BUS | sid->phy_id;
}
- } else {
- esid = (struct ext_selfid *)sid;
-
- if ((esid->phy_id != nodeid)
- || (esid->seq_nr != esid_seq)) {
- HPSB_INFO("SelfIDs failed monotony check with "
- "%d/%d", esid->phy_id, esid->seq_nr);
- return 0;
- }
- esid_seq++;
- }
- sid++;
- }
-
- esid = (struct ext_selfid *)(sid - 1);
- while (esid->extended) {
- if ((esid->porta == 0x2) || (esid->portb == 0x2)
- || (esid->portc == 0x2) || (esid->portd == 0x2)
- || (esid->porte == 0x2) || (esid->portf == 0x2)
- || (esid->portg == 0x2) || (esid->porth == 0x2)) {
+ } else {
+ esid = (struct ext_selfid *)sid;
+
+ if ((esid->phy_id != nodeid)
+ || (esid->seq_nr != esid_seq)) {
+ HPSB_INFO("SelfIDs failed monotony check with "
+ "%d/%d", esid->phy_id, esid->seq_nr);
+ return 0;
+ }
+ esid_seq++;
+ }
+ sid++;
+ }
+
+ esid = (struct ext_selfid *)(sid - 1);
+ while (esid->extended) {
+ if ((esid->porta == SELFID_PORT_PARENT) ||
+ (esid->portb == SELFID_PORT_PARENT) ||
+ (esid->portc == SELFID_PORT_PARENT) ||
+ (esid->portd == SELFID_PORT_PARENT) ||
+ (esid->porte == SELFID_PORT_PARENT) ||
+ (esid->portf == SELFID_PORT_PARENT) ||
+ (esid->portg == SELFID_PORT_PARENT) ||
+ (esid->porth == SELFID_PORT_PARENT)) {
HPSB_INFO("SelfIDs failed root check on "
"extended SelfID");
return 0;
- }
- esid--;
- }
+ }
+ esid--;
+ }
- sid = (struct selfid *)esid;
- if ((sid->port0 == 0x2) || (sid->port1 == 0x2) || (sid->port2 == 0x2)) {
+ sid = (struct selfid *)esid;
+ if ((sid->port0 == SELFID_PORT_PARENT) ||
+ (sid->port1 == SELFID_PORT_PARENT) ||
+ (sid->port2 == SELFID_PORT_PARENT)) {
HPSB_INFO("SelfIDs failed root check");
return 0;
- }
+ }
host->node_count = nodeid + 1;
- return 1;
+ return 1;
}
static void build_speed_map(struct hpsb_host *host, int nodecount)
{
u8 speedcap[nodecount];
u8 cldcnt[nodecount];
- u8 *map = host->speed_map;
- struct selfid *sid;
- struct ext_selfid *esid;
- int i, j, n;
-
- for (i = 0; i < (nodecount * 64); i += 64) {
- for (j = 0; j < nodecount; j++) {
- map[i+j] = IEEE1394_SPEED_MAX;
- }
- }
-
- for (i = 0; i < nodecount; i++) {
- cldcnt[i] = 0;
- }
-
- /* find direct children count and speed */
- for (sid = (struct selfid *)&host->topology_map[host->selfid_count-1],
- n = nodecount - 1;
- (void *)sid >= (void *)host->topology_map; sid--) {
- if (sid->extended) {
- esid = (struct ext_selfid *)sid;
-
- if (esid->porta == 0x3) cldcnt[n]++;
- if (esid->portb == 0x3) cldcnt[n]++;
- if (esid->portc == 0x3) cldcnt[n]++;
- if (esid->portd == 0x3) cldcnt[n]++;
- if (esid->porte == 0x3) cldcnt[n]++;
- if (esid->portf == 0x3) cldcnt[n]++;
- if (esid->portg == 0x3) cldcnt[n]++;
- if (esid->porth == 0x3) cldcnt[n]++;
+ u8 *map = host->speed_map;
+ struct selfid *sid;
+ struct ext_selfid *esid;
+ int i, j, n;
+
+ for (i = 0; i < (nodecount * 64); i += 64) {
+ for (j = 0; j < nodecount; j++) {
+ map[i+j] = IEEE1394_SPEED_MAX;
+ }
+ }
+
+ for (i = 0; i < nodecount; i++) {
+ cldcnt[i] = 0;
+ }
+
+ /* find direct children count and speed */
+ for (sid = (struct selfid *)&host->topology_map[host->selfid_count-1],
+ n = nodecount - 1;
+ (void *)sid >= (void *)host->topology_map; sid--) {
+ if (sid->extended) {
+ esid = (struct ext_selfid *)sid;
+
+ if (esid->porta == SELFID_PORT_CHILD) cldcnt[n]++;
+ if (esid->portb == SELFID_PORT_CHILD) cldcnt[n]++;
+ if (esid->portc == SELFID_PORT_CHILD) cldcnt[n]++;
+ if (esid->portd == SELFID_PORT_CHILD) cldcnt[n]++;
+ if (esid->porte == SELFID_PORT_CHILD) cldcnt[n]++;
+ if (esid->portf == SELFID_PORT_CHILD) cldcnt[n]++;
+ if (esid->portg == SELFID_PORT_CHILD) cldcnt[n]++;
+ if (esid->porth == SELFID_PORT_CHILD) cldcnt[n]++;
} else {
- if (sid->port0 == 0x3) cldcnt[n]++;
- if (sid->port1 == 0x3) cldcnt[n]++;
- if (sid->port2 == 0x3) cldcnt[n]++;
-
- speedcap[n] = sid->speed;
- n--;
- }
- }
-
- /* set self mapping */
- for (i = 0; i < nodecount; i++) {
- map[64*i + i] = speedcap[i];
- }
-
- /* fix up direct children count to total children count;
- * also fix up speedcaps for sibling and parent communication */
- for (i = 1; i < nodecount; i++) {
- for (j = cldcnt[i], n = i - 1; j > 0; j--) {
- cldcnt[i] += cldcnt[n];
- speedcap[n] = min(speedcap[n], speedcap[i]);
- n -= cldcnt[n] + 1;
- }
- }
-
- for (n = 0; n < nodecount; n++) {
- for (i = n - cldcnt[n]; i <= n; i++) {
- for (j = 0; j < (n - cldcnt[n]); j++) {
- map[j*64 + i] = map[i*64 + j] =
- min(map[i*64 + j], speedcap[n]);
- }
- for (j = n + 1; j < nodecount; j++) {
- map[j*64 + i] = map[i*64 + j] =
- min(map[i*64 + j], speedcap[n]);
- }
- }
- }
+ if (sid->port0 == SELFID_PORT_CHILD) cldcnt[n]++;
+ if (sid->port1 == SELFID_PORT_CHILD) cldcnt[n]++;
+ if (sid->port2 == SELFID_PORT_CHILD) cldcnt[n]++;
+
+ speedcap[n] = sid->speed;
+ n--;
+ }
+ }
+
+ /* set self mapping */
+ for (i = 0; i < nodecount; i++) {
+ map[64*i + i] = speedcap[i];
+ }
+
+ /* fix up direct children count to total children count;
+ * also fix up speedcaps for sibling and parent communication */
+ for (i = 1; i < nodecount; i++) {
+ for (j = cldcnt[i], n = i - 1; j > 0; j--) {
+ cldcnt[i] += cldcnt[n];
+ speedcap[n] = min(speedcap[n], speedcap[i]);
+ n -= cldcnt[n] + 1;
+ }
+ }
+
+ for (n = 0; n < nodecount; n++) {
+ for (i = n - cldcnt[n]; i <= n; i++) {
+ for (j = 0; j < (n - cldcnt[n]); j++) {
+ map[j*64 + i] = map[i*64 + j] =
+ min(map[i*64 + j], speedcap[n]);
+ }
+ for (j = n + 1; j < nodecount; j++) {
+ map[j*64 + i] = map[i*64 + j] =
+ min(map[i*64 + j], speedcap[n]);
+ }
+ }
+ }
}
void hpsb_selfid_received(struct hpsb_host *host, quadlet_t sid)
{
- if (host->in_bus_reset) {
- HPSB_VERBOSE("Including SelfID 0x%x", sid);
- host->topology_map[host->selfid_count++] = sid;
- } else {
- HPSB_NOTICE("Spurious SelfID packet (0x%08x) received from bus %d",
+ if (host->in_bus_reset) {
+ HPSB_VERBOSE("Including SelfID 0x%x", sid);
+ host->topology_map[host->selfid_count++] = sid;
+ } else {
+ HPSB_NOTICE("Spurious SelfID packet (0x%08x) received from bus %d",
sid, NODEID_TO_BUS(host->node_id));
- }
+ }
}
void hpsb_selfid_complete(struct hpsb_host *host, int phyid, int isroot)
if (!host->in_bus_reset)
HPSB_NOTICE("SelfID completion called outside of bus reset!");
- host->node_id = LOCAL_BUS | phyid;
- host->is_root = isroot;
+ host->node_id = LOCAL_BUS | phyid;
+ host->is_root = isroot;
- if (!check_selfids(host)) {
- if (host->reset_retries++ < 20) {
- /* selfid stage did not complete without error */
- HPSB_NOTICE("Error in SelfID stage, resetting");
+ if (!check_selfids(host)) {
+ if (host->reset_retries++ < 20) {
+ /* selfid stage did not complete without error */
+ HPSB_NOTICE("Error in SelfID stage, resetting");
host->in_bus_reset = 0;
/* this should work from ohci1394 now... */
- hpsb_reset_bus(host, LONG_RESET);
- return;
- } else {
- HPSB_NOTICE("Stopping out-of-control reset loop");
- HPSB_NOTICE("Warning - topology map and speed map will not be valid");
+ hpsb_reset_bus(host, LONG_RESET);
+ return;
+ } else {
+ HPSB_NOTICE("Stopping out-of-control reset loop");
+ HPSB_NOTICE("Warning - topology map and speed map will not be valid");
host->reset_retries = 0;
- }
- } else {
+ }
+ } else {
host->reset_retries = 0;
- build_speed_map(host, host->node_count);
- }
+ build_speed_map(host, host->node_count);
+ }
HPSB_VERBOSE("selfid_complete called with successful SelfID stage "
"... irm_id: 0x%X node_id: 0x%X",host->irm_id,host->node_id);
- /* irm_id is kept up to date by check_selfids() */
- if (host->irm_id == host->node_id) {
- host->is_irm = 1;
- } else {
- host->is_busmgr = 0;
- host->is_irm = 0;
- }
+ /* irm_id is kept up to date by check_selfids() */
+ if (host->irm_id == host->node_id) {
+ host->is_irm = 1;
+ } else {
+ host->is_busmgr = 0;
+ host->is_irm = 0;
+ }
- if (isroot) {
+ if (isroot) {
host->driver->devctl(host, ACT_CYCLE_MASTER, 1);
host->is_cycmst = 1;
}
atomic_inc(&host->generation);
host->in_bus_reset = 0;
- highlevel_host_reset(host);
+ highlevel_host_reset(host);
}
void hpsb_packet_sent(struct hpsb_host *host, struct hpsb_packet *packet,
- int ackcode)
+ int ackcode)
{
unsigned long flags;
int hpsb_send_phy_config(struct hpsb_host *host, int rootid, int gapcnt)
{
struct hpsb_packet *packet;
+ quadlet_t d = 0;
int retval = 0;
if (rootid >= ALL_NODES || rootid < -1 || gapcnt > 0x3f || gapcnt < -1 ||
return -EINVAL;
}
- packet = hpsb_alloc_packet(0);
- if (!packet)
- return -ENOMEM;
-
- packet->host = host;
- packet->header_size = 8;
- packet->data_size = 0;
- packet->expect_response = 0;
- packet->no_waiter = 0;
- packet->type = hpsb_raw;
- packet->header[0] = 0;
if (rootid != -1)
- packet->header[0] |= rootid << 24 | 1 << 23;
+ d |= PHYPACKET_PHYCONFIG_R | rootid << PHYPACKET_PORT_SHIFT;
if (gapcnt != -1)
- packet->header[0] |= gapcnt << 16 | 1 << 22;
+ d |= PHYPACKET_PHYCONFIG_T | gapcnt << PHYPACKET_GAPCOUNT_SHIFT;
- packet->header[1] = ~packet->header[0];
+ packet = hpsb_make_phypacket(host, d);
+ if (!packet)
+ return -ENOMEM;
packet->generation = get_hpsb_generation(host);
-
retval = hpsb_send_packet_and_wait(packet);
hpsb_free_packet(packet);
{
struct hpsb_host *host = packet->host;
- if (host->is_shutdown)
+ if (host->is_shutdown)
return -EINVAL;
if (host->in_bus_reset ||
(packet->generation != get_hpsb_generation(host)))
- return -EAGAIN;
+ return -EAGAIN;
- packet->state = hpsb_queued;
+ packet->state = hpsb_queued;
/* This just seems silly to me */
WARN_ON(packet->no_waiter && packet->expect_response);
skb_queue_tail(&host->pending_packet_queue, packet->skb);
}
- if (packet->node_id == host->node_id) {
+ if (packet->node_id == host->node_id) {
/* it is a local request, so handle it locally */
- quadlet_t *data;
- size_t size = packet->data_size + packet->header_size;
+ quadlet_t *data;
+ size_t size = packet->data_size + packet->header_size;
- data = kmalloc(size, GFP_ATOMIC);
- if (!data) {
- HPSB_ERR("unable to allocate memory for concatenating header and data");
- return -ENOMEM;
- }
+ data = kmalloc(size, GFP_ATOMIC);
+ if (!data) {
+ HPSB_ERR("unable to allocate memory for concatenating header and data");
+ return -ENOMEM;
+ }
- memcpy(data, packet->header, packet->header_size);
+ memcpy(data, packet->header, packet->header_size);
- if (packet->data_size)
+ if (packet->data_size)
memcpy(((u8*)data) + packet->header_size, packet->data, packet->data_size);
- dump_packet("send packet local", packet->header, packet->header_size, -1);
+ dump_packet("send packet local", packet->header, packet->header_size, -1);
- hpsb_packet_sent(host, packet, packet->expect_response ? ACK_PENDING : ACK_COMPLETE);
- hpsb_packet_received(host, data, size, 0);
+ hpsb_packet_sent(host, packet, packet->expect_response ? ACK_PENDING : ACK_COMPLETE);
+ hpsb_packet_received(host, data, size, 0);
- kfree(data);
+ kfree(data);
- return 0;
- }
+ return 0;
+ }
- if (packet->type == hpsb_async && packet->node_id != ALL_NODES) {
- packet->speed_code =
- host->speed_map[NODEID_TO_NODE(host->node_id) * 64
- + NODEID_TO_NODE(packet->node_id)];
- }
+ if (packet->type == hpsb_async && packet->node_id != ALL_NODES) {
+ packet->speed_code =
+ host->speed_map[NODEID_TO_NODE(host->node_id) * 64
+ + NODEID_TO_NODE(packet->node_id)];
+ }
- dump_packet("send packet", packet->header, packet->header_size, packet->speed_code);
+ dump_packet("send packet", packet->header, packet->header_size, packet->speed_code);
- return host->driver->transmit_packet(host, packet);
+ return host->driver->transmit_packet(host, packet);
}
/* We could just use complete() directly as the packet complete
static void send_packet_nocare(struct hpsb_packet *packet)
{
- if (hpsb_send_packet(packet) < 0) {
- hpsb_free_packet(packet);
- }
+ if (hpsb_send_packet(packet) < 0) {
+ hpsb_free_packet(packet);
+ }
}
static void handle_packet_response(struct hpsb_host *host, int tcode,
quadlet_t *data, size_t size)
{
- struct hpsb_packet *packet = NULL;
+ struct hpsb_packet *packet = NULL;
struct sk_buff *skb;
- int tcode_match = 0;
- int tlabel;
- unsigned long flags;
+ int tcode_match = 0;
+ int tlabel;
+ unsigned long flags;
- tlabel = (data[0] >> 10) & 0x3f;
+ tlabel = (data[0] >> 10) & 0x3f;
spin_lock_irqsave(&host->pending_packet_queue.lock, flags);
skb_queue_walk(&host->pending_packet_queue, skb) {
packet = (struct hpsb_packet *)skb->data;
- if ((packet->tlabel == tlabel)
- && (packet->node_id == (data[1] >> 16))){
- break;
- }
+ if ((packet->tlabel == tlabel)
+ && (packet->node_id == (data[1] >> 16))){
+ break;
+ }
packet = NULL;
- }
+ }
if (packet == NULL) {
- HPSB_DEBUG("unsolicited response packet received - no tlabel match");
- dump_packet("contents", data, 16, -1);
+ HPSB_DEBUG("unsolicited response packet received - no tlabel match");
+ dump_packet("contents", data, 16, -1);
spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags);
- return;
- }
+ return;
+ }
- switch (packet->tcode) {
- case TCODE_WRITEQ:
- case TCODE_WRITEB:
- if (tcode != TCODE_WRITE_RESPONSE)
+ switch (packet->tcode) {
+ case TCODE_WRITEQ:
+ case TCODE_WRITEB:
+ if (tcode != TCODE_WRITE_RESPONSE)
break;
tcode_match = 1;
memcpy(packet->header, data, 12);
- break;
- case TCODE_READQ:
- if (tcode != TCODE_READQ_RESPONSE)
+ break;
+ case TCODE_READQ:
+ if (tcode != TCODE_READQ_RESPONSE)
break;
tcode_match = 1;
memcpy(packet->header, data, 16);
- break;
- case TCODE_READB:
- if (tcode != TCODE_READB_RESPONSE)
+ break;
+ case TCODE_READB:
+ if (tcode != TCODE_READB_RESPONSE)
break;
tcode_match = 1;
BUG_ON(packet->skb->len - sizeof(*packet) < size - 16);
memcpy(packet->header, data, 16);
memcpy(packet->data, data + 4, size - 16);
- break;
- case TCODE_LOCK_REQUEST:
- if (tcode != TCODE_LOCK_RESPONSE)
+ break;
+ case TCODE_LOCK_REQUEST:
+ if (tcode != TCODE_LOCK_RESPONSE)
break;
tcode_match = 1;
size = min((size - 16), (size_t)8);
BUG_ON(packet->skb->len - sizeof(*packet) < size);
memcpy(packet->header, data, 16);
memcpy(packet->data, data + 4, size);
- break;
- }
+ break;
+ }
- if (!tcode_match) {
+ if (!tcode_match) {
spin_unlock_irqrestore(&host->pending_packet_queue.lock, flags);
- HPSB_INFO("unsolicited response packet received - tcode mismatch");
- dump_packet("contents", data, 16, -1);
- return;
- }
+ HPSB_INFO("unsolicited response packet received - tcode mismatch");
+ dump_packet("contents", data, 16, -1);
+ return;
+ }
__skb_unlink(skb, &host->pending_packet_queue);
static struct hpsb_packet *create_reply_packet(struct hpsb_host *host,
quadlet_t *data, size_t dsize)
{
- struct hpsb_packet *p;
+ struct hpsb_packet *p;
- p = hpsb_alloc_packet(dsize);
- if (unlikely(p == NULL)) {
- /* FIXME - send data_error response */
- return NULL;
- }
+ p = hpsb_alloc_packet(dsize);
+ if (unlikely(p == NULL)) {
+ /* FIXME - send data_error response */
+ return NULL;
+ }
- p->type = hpsb_async;
- p->state = hpsb_unused;
- p->host = host;
- p->node_id = data[1] >> 16;
- p->tlabel = (data[0] >> 10) & 0x3f;
- p->no_waiter = 1;
+ p->type = hpsb_async;
+ p->state = hpsb_unused;
+ p->host = host;
+ p->node_id = data[1] >> 16;
+ p->tlabel = (data[0] >> 10) & 0x3f;
+ p->no_waiter = 1;
p->generation = get_hpsb_generation(host);
if (dsize % 4)
p->data[dsize / 4] = 0;
- return p;
+ return p;
}
#define PREP_ASYNC_HEAD_RCODE(tc) \
packet->header[2] = 0
static void fill_async_readquad_resp(struct hpsb_packet *packet, int rcode,
- quadlet_t data)
+ quadlet_t data)
{
PREP_ASYNC_HEAD_RCODE(TCODE_READQ_RESPONSE);
packet->header[3] = data;
}
static void fill_async_readblock_resp(struct hpsb_packet *packet, int rcode,
- int length)
+ int length)
{
if (rcode != RCODE_COMPLETE)
length = 0;
}
static void fill_async_lock_resp(struct hpsb_packet *packet, int rcode, int extcode,
- int length)
+ int length)
{
if (rcode != RCODE_COMPLETE)
length = 0;
}
#define PREP_REPLY_PACKET(length) \
- packet = create_reply_packet(host, data, length); \
- if (packet == NULL) break
+ packet = create_reply_packet(host, data, length); \
+ if (packet == NULL) break
static void handle_incoming_packet(struct hpsb_host *host, int tcode,
quadlet_t *data, size_t size, int write_acked)
{
- struct hpsb_packet *packet;
- int length, rcode, extcode;
- quadlet_t buffer;
- nodeid_t source = data[1] >> 16;
- nodeid_t dest = data[0] >> 16;
- u16 flags = (u16) data[0];
- u64 addr;
-
- /* big FIXME - no error checking is done for an out of bounds length */
-
- switch (tcode) {
- case TCODE_WRITEQ:
- addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
- rcode = highlevel_write(host, source, dest, data+3,
+ struct hpsb_packet *packet;
+ int length, rcode, extcode;
+ quadlet_t buffer;
+ nodeid_t source = data[1] >> 16;
+ nodeid_t dest = data[0] >> 16;
+ u16 flags = (u16) data[0];
+ u64 addr;
+
+ /* big FIXME - no error checking is done for an out of bounds length */
+
+ switch (tcode) {
+ case TCODE_WRITEQ:
+ addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
+ rcode = highlevel_write(host, source, dest, data+3,
addr, 4, flags);
- if (!write_acked
- && (NODEID_TO_NODE(data[0] >> 16) != NODE_MASK)
- && (rcode >= 0)) {
- /* not a broadcast write, reply */
- PREP_REPLY_PACKET(0);
- fill_async_write_resp(packet, rcode);
- send_packet_nocare(packet);
- }
- break;
-
- case TCODE_WRITEB:
- addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
- rcode = highlevel_write(host, source, dest, data+4,
+ if (!write_acked
+ && (NODEID_TO_NODE(data[0] >> 16) != NODE_MASK)
+ && (rcode >= 0)) {
+ /* not a broadcast write, reply */
+ PREP_REPLY_PACKET(0);
+ fill_async_write_resp(packet, rcode);
+ send_packet_nocare(packet);
+ }
+ break;
+
+ case TCODE_WRITEB:
+ addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
+ rcode = highlevel_write(host, source, dest, data+4,
addr, data[3]>>16, flags);
- if (!write_acked
- && (NODEID_TO_NODE(data[0] >> 16) != NODE_MASK)
- && (rcode >= 0)) {
- /* not a broadcast write, reply */
- PREP_REPLY_PACKET(0);
- fill_async_write_resp(packet, rcode);
- send_packet_nocare(packet);
- }
- break;
-
- case TCODE_READQ:
- addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
- rcode = highlevel_read(host, source, &buffer, addr, 4, flags);
-
- if (rcode >= 0) {
- PREP_REPLY_PACKET(0);
- fill_async_readquad_resp(packet, rcode, buffer);
- send_packet_nocare(packet);
- }
- break;
-
- case TCODE_READB:
- length = data[3] >> 16;
- PREP_REPLY_PACKET(length);
-
- addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
- rcode = highlevel_read(host, source, packet->data, addr,
- length, flags);
-
- if (rcode >= 0) {
- fill_async_readblock_resp(packet, rcode, length);
- send_packet_nocare(packet);
- } else {
- hpsb_free_packet(packet);
- }
- break;
-
- case TCODE_LOCK_REQUEST:
- length = data[3] >> 16;
- extcode = data[3] & 0xffff;
- addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
-
- PREP_REPLY_PACKET(8);
-
- if ((extcode == 0) || (extcode >= 7)) {
- /* let switch default handle error */
- length = 0;
- }
-
- switch (length) {
- case 4:
- rcode = highlevel_lock(host, source, packet->data, addr,
- data[4], 0, extcode,flags);
- fill_async_lock_resp(packet, rcode, extcode, 4);
- break;
- case 8:
- if ((extcode != EXTCODE_FETCH_ADD)
- && (extcode != EXTCODE_LITTLE_ADD)) {
- rcode = highlevel_lock(host, source,
- packet->data, addr,
- data[5], data[4],
- extcode, flags);
- fill_async_lock_resp(packet, rcode, extcode, 4);
- } else {
- rcode = highlevel_lock64(host, source,
- (octlet_t *)packet->data, addr,
- *(octlet_t *)(data + 4), 0ULL,
- extcode, flags);
- fill_async_lock_resp(packet, rcode, extcode, 8);
- }
- break;
- case 16:
- rcode = highlevel_lock64(host, source,
- (octlet_t *)packet->data, addr,
- *(octlet_t *)(data + 6),
- *(octlet_t *)(data + 4),
- extcode, flags);
- fill_async_lock_resp(packet, rcode, extcode, 8);
- break;
- default:
- rcode = RCODE_TYPE_ERROR;
- fill_async_lock_resp(packet, rcode,
- extcode, 0);
- }
-
- if (rcode >= 0) {
- send_packet_nocare(packet);
- } else {
- hpsb_free_packet(packet);
- }
- break;
- }
+ if (!write_acked
+ && (NODEID_TO_NODE(data[0] >> 16) != NODE_MASK)
+ && (rcode >= 0)) {
+ /* not a broadcast write, reply */
+ PREP_REPLY_PACKET(0);
+ fill_async_write_resp(packet, rcode);
+ send_packet_nocare(packet);
+ }
+ break;
+
+ case TCODE_READQ:
+ addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
+ rcode = highlevel_read(host, source, &buffer, addr, 4, flags);
+
+ if (rcode >= 0) {
+ PREP_REPLY_PACKET(0);
+ fill_async_readquad_resp(packet, rcode, buffer);
+ send_packet_nocare(packet);
+ }
+ break;
+
+ case TCODE_READB:
+ length = data[3] >> 16;
+ PREP_REPLY_PACKET(length);
+
+ addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
+ rcode = highlevel_read(host, source, packet->data, addr,
+ length, flags);
+
+ if (rcode >= 0) {
+ fill_async_readblock_resp(packet, rcode, length);
+ send_packet_nocare(packet);
+ } else {
+ hpsb_free_packet(packet);
+ }
+ break;
+
+ case TCODE_LOCK_REQUEST:
+ length = data[3] >> 16;
+ extcode = data[3] & 0xffff;
+ addr = (((u64)(data[1] & 0xffff)) << 32) | data[2];
+
+ PREP_REPLY_PACKET(8);
+
+ if ((extcode == 0) || (extcode >= 7)) {
+ /* let switch default handle error */
+ length = 0;
+ }
+
+ switch (length) {
+ case 4:
+ rcode = highlevel_lock(host, source, packet->data, addr,
+ data[4], 0, extcode,flags);
+ fill_async_lock_resp(packet, rcode, extcode, 4);
+ break;
+ case 8:
+ if ((extcode != EXTCODE_FETCH_ADD)
+ && (extcode != EXTCODE_LITTLE_ADD)) {
+ rcode = highlevel_lock(host, source,
+ packet->data, addr,
+ data[5], data[4],
+ extcode, flags);
+ fill_async_lock_resp(packet, rcode, extcode, 4);
+ } else {
+ rcode = highlevel_lock64(host, source,
+ (octlet_t *)packet->data, addr,
+ *(octlet_t *)(data + 4), 0ULL,
+ extcode, flags);
+ fill_async_lock_resp(packet, rcode, extcode, 8);
+ }
+ break;
+ case 16:
+ rcode = highlevel_lock64(host, source,
+ (octlet_t *)packet->data, addr,
+ *(octlet_t *)(data + 6),
+ *(octlet_t *)(data + 4),
+ extcode, flags);
+ fill_async_lock_resp(packet, rcode, extcode, 8);
+ break;
+ default:
+ rcode = RCODE_TYPE_ERROR;
+ fill_async_lock_resp(packet, rcode,
+ extcode, 0);
+ }
+
+ if (rcode >= 0) {
+ send_packet_nocare(packet);
+ } else {
+ hpsb_free_packet(packet);
+ }
+ break;
+ }
}
#undef PREP_REPLY_PACKET
void hpsb_packet_received(struct hpsb_host *host, quadlet_t *data, size_t size,
- int write_acked)
+ int write_acked)
{
- int tcode;
-
- if (host->in_bus_reset) {
- HPSB_INFO("received packet during reset; ignoring");
- return;
- }
-
- dump_packet("received packet", data, size, -1);
-
- tcode = (data[0] >> 4) & 0xf;
-
- switch (tcode) {
- case TCODE_WRITE_RESPONSE:
- case TCODE_READQ_RESPONSE:
- case TCODE_READB_RESPONSE:
- case TCODE_LOCK_RESPONSE:
- handle_packet_response(host, tcode, data, size);
- break;
-
- case TCODE_WRITEQ:
- case TCODE_WRITEB:
- case TCODE_READQ:
- case TCODE_READB:
- case TCODE_LOCK_REQUEST:
- handle_incoming_packet(host, tcode, data, size, write_acked);
- break;
-
-
- case TCODE_ISO_DATA:
- highlevel_iso_receive(host, data, size);
- break;
-
- case TCODE_CYCLE_START:
- /* simply ignore this packet if it is passed on */
- break;
-
- default:
- HPSB_NOTICE("received packet with bogus transaction code %d",
- tcode);
- break;
- }
+ int tcode;
+
+ if (host->in_bus_reset) {
+ HPSB_INFO("received packet during reset; ignoring");
+ return;
+ }
+
+ dump_packet("received packet", data, size, -1);
+
+ tcode = (data[0] >> 4) & 0xf;
+
+ switch (tcode) {
+ case TCODE_WRITE_RESPONSE:
+ case TCODE_READQ_RESPONSE:
+ case TCODE_READB_RESPONSE:
+ case TCODE_LOCK_RESPONSE:
+ handle_packet_response(host, tcode, data, size);
+ break;
+
+ case TCODE_WRITEQ:
+ case TCODE_WRITEB:
+ case TCODE_READQ:
+ case TCODE_READB:
+ case TCODE_LOCK_REQUEST:
+ handle_incoming_packet(host, tcode, data, size, write_acked);
+ break;
+
+
+ case TCODE_ISO_DATA:
+ highlevel_iso_receive(host, data, size);
+ break;
+
+ case TCODE_CYCLE_START:
+ /* simply ignore this packet if it is passed on */
+ break;
+
+ default:
+ HPSB_NOTICE("received packet with bogus transaction code %d",
+ tcode);
+ break;
+ }
}
nodemgr implements functionality required of ieee1394a-2000
IRMs */
hpsb_disable_irm = 1;
-
+
return 0;
}
struct hpsb_packet {
- /* This struct is basically read-only for hosts with the exception of
- * the data buffer contents and xnext - see below. */
+ /* This struct is basically read-only for hosts with the exception of
+ * the data buffer contents and xnext - see below. */
/* This can be used for host driver internal linking.
*
* driver_list when free'ing it. */
struct list_head driver_list;
- nodeid_t node_id;
+ nodeid_t node_id;
- /* Async and Iso types should be clear, raw means send-as-is, do not
- * CRC! Byte swapping shall still be done in this case. */
- enum { hpsb_async, hpsb_iso, hpsb_raw } __attribute__((packed)) type;
+ /* Async and Iso types should be clear, raw means send-as-is, do not
+ * CRC! Byte swapping shall still be done in this case. */
+ enum { hpsb_async, hpsb_iso, hpsb_raw } __attribute__((packed)) type;
- /* Okay, this is core internal and a no care for hosts.
- * queued = queued for sending
- * pending = sent, waiting for response
- * complete = processing completed, successful or not
- */
- enum {
- hpsb_unused, hpsb_queued, hpsb_pending, hpsb_complete
- } __attribute__((packed)) state;
+ /* Okay, this is core internal and a no care for hosts.
+ * queued = queued for sending
+ * pending = sent, waiting for response
+ * complete = processing completed, successful or not
+ */
+ enum {
+ hpsb_unused, hpsb_queued, hpsb_pending, hpsb_complete
+ } __attribute__((packed)) state;
- /* These are core internal. */
- signed char tlabel;
+ /* These are core internal. */
+ signed char tlabel;
signed char ack_code;
unsigned char tcode;
- unsigned expect_response:1;
- unsigned no_waiter:1;
+ unsigned expect_response:1;
+ unsigned no_waiter:1;
- /* Speed to transmit with: 0 = 100Mbps, 1 = 200Mbps, 2 = 400Mbps */
- unsigned speed_code:2;
+ /* Speed to transmit with: 0 = 100Mbps, 1 = 200Mbps, 2 = 400Mbps */
+ unsigned speed_code:2;
- /*
- * *header and *data are guaranteed to be 32-bit DMAable and may be
- * overwritten to allow in-place byte swapping. Neither of these is
- * CRCed (the sizes also don't include CRC), but contain space for at
- * least one additional quadlet to allow in-place CRCing. The memory is
- * also guaranteed to be DMA mappable.
- */
- quadlet_t *header;
- quadlet_t *data;
- size_t header_size;
- size_t data_size;
+ /*
+ * *header and *data are guaranteed to be 32-bit DMAable and may be
+ * overwritten to allow in-place byte swapping. Neither of these is
+ * CRCed (the sizes also don't include CRC), but contain space for at
+ * least one additional quadlet to allow in-place CRCing. The memory is
+ * also guaranteed to be DMA mappable.
+ */
+ quadlet_t *header;
+ quadlet_t *data;
+ size_t header_size;
+ size_t data_size;
- struct hpsb_host *host;
- unsigned int generation;
+ struct hpsb_host *host;
+ unsigned int generation;
atomic_t refcnt;
/* XXX This is just a hack at the moment */
struct sk_buff *skb;
- /* Store jiffies for implementing bus timeouts. */
- unsigned long sendtime;
+ /* Store jiffies for implementing bus timeouts. */
+ unsigned long sendtime;
- quadlet_t embedded_header[5];
+ quadlet_t embedded_header[5];
};
/* Set a task for when a packet completes */
*/
static inline unsigned int get_hpsb_generation(struct hpsb_host *host)
{
- return atomic_read(&host->generation);
+ return atomic_read(&host->generation);
}
/*
* from within a transmit packet routine.
*/
void hpsb_packet_sent(struct hpsb_host *host, struct hpsb_packet *packet,
- int ackcode);
+ int ackcode);
/*
* Hand over received packet to the core. The contents of data are expected to
* packet type.
*/
void hpsb_packet_received(struct hpsb_host *host, quadlet_t *data, size_t size,
- int write_acked);
+ int write_acked);
/*
* Block 15 (240-255) reserved for drivers under development, etc.
*/
-#define IEEE1394_MAJOR 171
+#define IEEE1394_MAJOR 171
-#define IEEE1394_MINOR_BLOCK_RAW1394 0
-#define IEEE1394_MINOR_BLOCK_VIDEO1394 1
-#define IEEE1394_MINOR_BLOCK_DV1394 2
-#define IEEE1394_MINOR_BLOCK_AMDTP 3
+#define IEEE1394_MINOR_BLOCK_RAW1394 0
+#define IEEE1394_MINOR_BLOCK_VIDEO1394 1
+#define IEEE1394_MINOR_BLOCK_DV1394 2
+#define IEEE1394_MINOR_BLOCK_AMDTP 3
#define IEEE1394_MINOR_BLOCK_EXPERIMENTAL 15
-#define IEEE1394_CORE_DEV MKDEV(IEEE1394_MAJOR, 0)
-#define IEEE1394_RAW1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16)
-#define IEEE1394_VIDEO1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_VIDEO1394 * 16)
-#define IEEE1394_DV1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16)
-#define IEEE1394_AMDTP_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_AMDTP * 16)
-#define IEEE1394_EXPERIMENTAL_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_EXPERIMENTAL * 16)
+#define IEEE1394_CORE_DEV MKDEV(IEEE1394_MAJOR, 0)
+#define IEEE1394_RAW1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16)
+#define IEEE1394_VIDEO1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_VIDEO1394 * 16)
+#define IEEE1394_DV1394_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16)
+#define IEEE1394_AMDTP_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_AMDTP * 16)
+#define IEEE1394_EXPERIMENTAL_DEV MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_EXPERIMENTAL * 16)
/* return the index (within a minor number block) of a file */
static inline unsigned char ieee1394_file_to_instance(struct file *file)
#include "ieee1394_core.h"
#include "highlevel.h"
#include "nodemgr.h"
-
+#include "ieee1394_transactions.h"
#define PREP_ASYNC_HEAD_ADDRESS(tc) \
packet->tcode = tc; \
packet->header[1] = (packet->host->node_id << 16) | (addr >> 32); \
packet->header[2] = addr & 0xffffffff
-
static void fill_async_readquad(struct hpsb_packet *packet, u64 addr)
{
- PREP_ASYNC_HEAD_ADDRESS(TCODE_READQ);
- packet->header_size = 12;
- packet->data_size = 0;
- packet->expect_response = 1;
+ PREP_ASYNC_HEAD_ADDRESS(TCODE_READQ);
+ packet->header_size = 12;
+ packet->data_size = 0;
+ packet->expect_response = 1;
}
-static void fill_async_readblock(struct hpsb_packet *packet, u64 addr, int length)
+static void fill_async_readblock(struct hpsb_packet *packet, u64 addr,
+ int length)
{
- PREP_ASYNC_HEAD_ADDRESS(TCODE_READB);
- packet->header[3] = length << 16;
- packet->header_size = 16;
- packet->data_size = 0;
- packet->expect_response = 1;
+ PREP_ASYNC_HEAD_ADDRESS(TCODE_READB);
+ packet->header[3] = length << 16;
+ packet->header_size = 16;
+ packet->data_size = 0;
+ packet->expect_response = 1;
}
-static void fill_async_writequad(struct hpsb_packet *packet, u64 addr, quadlet_t data)
+static void fill_async_writequad(struct hpsb_packet *packet, u64 addr,
+ quadlet_t data)
{
- PREP_ASYNC_HEAD_ADDRESS(TCODE_WRITEQ);
- packet->header[3] = data;
- packet->header_size = 16;
- packet->data_size = 0;
- packet->expect_response = 1;
+ PREP_ASYNC_HEAD_ADDRESS(TCODE_WRITEQ);
+ packet->header[3] = data;
+ packet->header_size = 16;
+ packet->data_size = 0;
+ packet->expect_response = 1;
}
-static void fill_async_writeblock(struct hpsb_packet *packet, u64 addr, int length)
+static void fill_async_writeblock(struct hpsb_packet *packet, u64 addr,
+ int length)
{
- PREP_ASYNC_HEAD_ADDRESS(TCODE_WRITEB);
- packet->header[3] = length << 16;
- packet->header_size = 16;
- packet->expect_response = 1;
- packet->data_size = length + (length % 4 ? 4 - (length % 4) : 0);
+ PREP_ASYNC_HEAD_ADDRESS(TCODE_WRITEB);
+ packet->header[3] = length << 16;
+ packet->header_size = 16;
+ packet->expect_response = 1;
+ packet->data_size = length + (length % 4 ? 4 - (length % 4) : 0);
}
static void fill_async_lock(struct hpsb_packet *packet, u64 addr, int extcode,
- int length)
+ int length)
{
- PREP_ASYNC_HEAD_ADDRESS(TCODE_LOCK_REQUEST);
- packet->header[3] = (length << 16) | extcode;
- packet->header_size = 16;
- packet->data_size = length;
- packet->expect_response = 1;
+ PREP_ASYNC_HEAD_ADDRESS(TCODE_LOCK_REQUEST);
+ packet->header[3] = (length << 16) | extcode;
+ packet->header_size = 16;
+ packet->data_size = length;
+ packet->expect_response = 1;
}
static void fill_iso_packet(struct hpsb_packet *packet, int length, int channel,
- int tag, int sync)
+ int tag, int sync)
{
- packet->header[0] = (length << 16) | (tag << 14) | (channel << 8)
- | (TCODE_ISO_DATA << 4) | sync;
+ packet->header[0] = (length << 16) | (tag << 14) | (channel << 8)
+ | (TCODE_ISO_DATA << 4) | sync;
- packet->header_size = 4;
- packet->data_size = length;
- packet->type = hpsb_iso;
- packet->tcode = TCODE_ISO_DATA;
+ packet->header_size = 4;
+ packet->data_size = length;
+ packet->type = hpsb_iso;
+ packet->tcode = TCODE_ISO_DATA;
}
static void fill_phy_packet(struct hpsb_packet *packet, quadlet_t data)
{
- packet->header[0] = data;
- packet->header[1] = ~data;
- packet->header_size = 8;
- packet->data_size = 0;
- packet->expect_response = 0;
- packet->type = hpsb_raw; /* No CRC added */
- packet->speed_code = IEEE1394_SPEED_100; /* Force speed to be 100Mbps */
+ packet->header[0] = data;
+ packet->header[1] = ~data;
+ packet->header_size = 8;
+ packet->data_size = 0;
+ packet->expect_response = 0;
+ packet->type = hpsb_raw; /* No CRC added */
+ packet->speed_code = IEEE1394_SPEED_100; /* Force speed to be 100Mbps */
}
static void fill_async_stream_packet(struct hpsb_packet *packet, int length,
int channel, int tag, int sync)
{
packet->header[0] = (length << 16) | (tag << 14) | (channel << 8)
- | (TCODE_STREAM_DATA << 4) | sync;
+ | (TCODE_STREAM_DATA << 4) | sync;
packet->header_size = 4;
packet->data_size = length;
*/
void hpsb_free_tlabel(struct hpsb_packet *packet)
{
- unsigned long flags;
+ unsigned long flags;
struct hpsb_tlabel_pool *tp;
tp = &packet->host->tpool[packet->node_id & NODE_MASK];
BUG_ON(packet->tlabel > 63 || packet->tlabel < 0);
- spin_lock_irqsave(&tp->lock, flags);
+ spin_lock_irqsave(&tp->lock, flags);
BUG_ON(!test_and_clear_bit(packet->tlabel, tp->pool));
- spin_unlock_irqrestore(&tp->lock, flags);
+ spin_unlock_irqrestore(&tp->lock, flags);
up(&tp->count);
}
-
-
int hpsb_packet_success(struct hpsb_packet *packet)
{
- switch (packet->ack_code) {
- case ACK_PENDING:
- switch ((packet->header[1] >> 12) & 0xf) {
- case RCODE_COMPLETE:
- return 0;
- case RCODE_CONFLICT_ERROR:
- return -EAGAIN;
- case RCODE_DATA_ERROR:
- return -EREMOTEIO;
- case RCODE_TYPE_ERROR:
- return -EACCES;
- case RCODE_ADDRESS_ERROR:
- return -EINVAL;
- default:
- HPSB_ERR("received reserved rcode %d from node %d",
- (packet->header[1] >> 12) & 0xf,
- packet->node_id);
- return -EAGAIN;
- }
- HPSB_PANIC("reached unreachable code 1 in %s", __FUNCTION__);
-
- case ACK_BUSY_X:
- case ACK_BUSY_A:
- case ACK_BUSY_B:
- return -EBUSY;
-
- case ACK_TYPE_ERROR:
- return -EACCES;
-
- case ACK_COMPLETE:
- if (packet->tcode == TCODE_WRITEQ
- || packet->tcode == TCODE_WRITEB) {
- return 0;
- } else {
- HPSB_ERR("impossible ack_complete from node %d "
- "(tcode %d)", packet->node_id, packet->tcode);
- return -EAGAIN;
- }
-
-
- case ACK_DATA_ERROR:
- if (packet->tcode == TCODE_WRITEB
- || packet->tcode == TCODE_LOCK_REQUEST) {
- return -EAGAIN;
- } else {
- HPSB_ERR("impossible ack_data_error from node %d "
- "(tcode %d)", packet->node_id, packet->tcode);
- return -EAGAIN;
- }
-
- case ACK_ADDRESS_ERROR:
- return -EINVAL;
-
- case ACK_TARDY:
- case ACK_CONFLICT_ERROR:
- case ACKX_NONE:
- case ACKX_SEND_ERROR:
- case ACKX_ABORTED:
- case ACKX_TIMEOUT:
- /* error while sending */
- return -EAGAIN;
-
- default:
- HPSB_ERR("got invalid ack %d from node %d (tcode %d)",
- packet->ack_code, packet->node_id, packet->tcode);
- return -EAGAIN;
- }
-
- HPSB_PANIC("reached unreachable code 2 in %s", __FUNCTION__);
+ switch (packet->ack_code) {
+ case ACK_PENDING:
+ switch ((packet->header[1] >> 12) & 0xf) {
+ case RCODE_COMPLETE:
+ return 0;
+ case RCODE_CONFLICT_ERROR:
+ return -EAGAIN;
+ case RCODE_DATA_ERROR:
+ return -EREMOTEIO;
+ case RCODE_TYPE_ERROR:
+ return -EACCES;
+ case RCODE_ADDRESS_ERROR:
+ return -EINVAL;
+ default:
+ HPSB_ERR("received reserved rcode %d from node %d",
+ (packet->header[1] >> 12) & 0xf,
+ packet->node_id);
+ return -EAGAIN;
+ }
+ HPSB_PANIC("reached unreachable code 1 in %s", __FUNCTION__);
+
+ case ACK_BUSY_X:
+ case ACK_BUSY_A:
+ case ACK_BUSY_B:
+ return -EBUSY;
+
+ case ACK_TYPE_ERROR:
+ return -EACCES;
+
+ case ACK_COMPLETE:
+ if (packet->tcode == TCODE_WRITEQ
+ || packet->tcode == TCODE_WRITEB) {
+ return 0;
+ } else {
+ HPSB_ERR("impossible ack_complete from node %d "
+ "(tcode %d)", packet->node_id, packet->tcode);
+ return -EAGAIN;
+ }
+
+ case ACK_DATA_ERROR:
+ if (packet->tcode == TCODE_WRITEB
+ || packet->tcode == TCODE_LOCK_REQUEST) {
+ return -EAGAIN;
+ } else {
+ HPSB_ERR("impossible ack_data_error from node %d "
+ "(tcode %d)", packet->node_id, packet->tcode);
+ return -EAGAIN;
+ }
+
+ case ACK_ADDRESS_ERROR:
+ return -EINVAL;
+
+ case ACK_TARDY:
+ case ACK_CONFLICT_ERROR:
+ case ACKX_NONE:
+ case ACKX_SEND_ERROR:
+ case ACKX_ABORTED:
+ case ACKX_TIMEOUT:
+ /* error while sending */
+ return -EAGAIN;
+
+ default:
+ HPSB_ERR("got invalid ack %d from node %d (tcode %d)",
+ packet->ack_code, packet->node_id, packet->tcode);
+ return -EAGAIN;
+ }
+
+ HPSB_PANIC("reached unreachable code 2 in %s", __FUNCTION__);
}
struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
u64 addr, size_t length)
{
- struct hpsb_packet *packet;
+ struct hpsb_packet *packet;
if (length == 0)
return NULL;
return packet;
}
-struct hpsb_packet *hpsb_make_writepacket (struct hpsb_host *host, nodeid_t node,
- u64 addr, quadlet_t *buffer, size_t length)
+struct hpsb_packet *hpsb_make_writepacket(struct hpsb_host *host, nodeid_t node,
+ u64 addr, quadlet_t * buffer,
+ size_t length)
{
struct hpsb_packet *packet;
if (!packet)
return NULL;
- if (length % 4) { /* zero padding bytes */
+ if (length % 4) { /* zero padding bytes */
packet->data[length >> 2] = 0;
}
packet->host = host;
return packet;
}
-struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer, int length,
- int channel, int tag, int sync)
+struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 * buffer,
+ int length, int channel, int tag,
+ int sync)
{
struct hpsb_packet *packet;
if (!packet)
return NULL;
- if (length % 4) { /* zero padding bytes */
+ if (length % 4) { /* zero padding bytes */
packet->data[length >> 2] = 0;
}
packet->host = host;
}
struct hpsb_packet *hpsb_make_lockpacket(struct hpsb_host *host, nodeid_t node,
- u64 addr, int extcode, quadlet_t *data,
- quadlet_t arg)
+ u64 addr, int extcode,
+ quadlet_t * data, quadlet_t arg)
{
struct hpsb_packet *p;
u32 length;
p = hpsb_alloc_packet(8);
- if (!p) return NULL;
+ if (!p)
+ return NULL;
p->host = host;
p->node_id = node;
return p;
}
-struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host, nodeid_t node,
- u64 addr, int extcode, octlet_t *data,
- octlet_t arg)
+struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host,
+ nodeid_t node, u64 addr, int extcode,
+ octlet_t * data, octlet_t arg)
{
struct hpsb_packet *p;
u32 length;
p = hpsb_alloc_packet(16);
- if (!p) return NULL;
+ if (!p)
+ return NULL;
p->host = host;
p->node_id = node;
return p;
}
-struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host,
- quadlet_t data)
+struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host, quadlet_t data)
{
- struct hpsb_packet *p;
+ struct hpsb_packet *p;
- p = hpsb_alloc_packet(0);
- if (!p) return NULL;
+ p = hpsb_alloc_packet(0);
+ if (!p)
+ return NULL;
- p->host = host;
- fill_phy_packet(p, data);
+ p->host = host;
+ fill_phy_packet(p, data);
- return p;
+ return p;
}
struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host,
struct hpsb_packet *p;
p = hpsb_alloc_packet(length);
- if (!p) return NULL;
+ if (!p)
+ return NULL;
p->host = host;
fill_iso_packet(p, length, channel, tag, sync);
*/
int hpsb_read(struct hpsb_host *host, nodeid_t node, unsigned int generation,
- u64 addr, quadlet_t *buffer, size_t length)
+ u64 addr, quadlet_t * buffer, size_t length)
{
- struct hpsb_packet *packet;
- int retval = 0;
+ struct hpsb_packet *packet;
+ int retval = 0;
- if (length == 0)
- return -EINVAL;
+ if (length == 0)
+ return -EINVAL;
- BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
+ BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
packet = hpsb_make_readpacket(host, node, addr, length);
- if (!packet) {
- return -ENOMEM;
- }
+ if (!packet) {
+ return -ENOMEM;
+ }
packet->generation = generation;
- retval = hpsb_send_packet_and_wait(packet);
+ retval = hpsb_send_packet_and_wait(packet);
if (retval < 0)
goto hpsb_read_fail;
- retval = hpsb_packet_success(packet);
+ retval = hpsb_packet_success(packet);
- if (retval == 0) {
- if (length == 4) {
- *buffer = packet->header[3];
- } else {
- memcpy(buffer, packet->data, length);
- }
- }
+ if (retval == 0) {
+ if (length == 4) {
+ *buffer = packet->header[3];
+ } else {
+ memcpy(buffer, packet->data, length);
+ }
+ }
-hpsb_read_fail:
- hpsb_free_tlabel(packet);
- hpsb_free_packet(packet);
+ hpsb_read_fail:
+ hpsb_free_tlabel(packet);
+ hpsb_free_packet(packet);
- return retval;
+ return retval;
}
-
int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
- u64 addr, quadlet_t *buffer, size_t length)
+ u64 addr, quadlet_t * buffer, size_t length)
{
struct hpsb_packet *packet;
int retval;
if (length == 0)
return -EINVAL;
- BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
+ BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
- packet = hpsb_make_writepacket (host, node, addr, buffer, length);
+ packet = hpsb_make_writepacket(host, node, addr, buffer, length);
if (!packet)
return -ENOMEM;
packet->generation = generation;
- retval = hpsb_send_packet_and_wait(packet);
+ retval = hpsb_send_packet_and_wait(packet);
if (retval < 0)
goto hpsb_write_fail;
- retval = hpsb_packet_success(packet);
+ retval = hpsb_packet_success(packet);
-hpsb_write_fail:
- hpsb_free_tlabel(packet);
- hpsb_free_packet(packet);
+ hpsb_write_fail:
+ hpsb_free_tlabel(packet);
+ hpsb_free_packet(packet);
- return retval;
+ return retval;
}
#if 0
int hpsb_lock(struct hpsb_host *host, nodeid_t node, unsigned int generation,
- u64 addr, int extcode, quadlet_t *data, quadlet_t arg)
+ u64 addr, int extcode, quadlet_t * data, quadlet_t arg)
{
- struct hpsb_packet *packet;
- int retval = 0;
+ struct hpsb_packet *packet;
+ int retval = 0;
- BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
+ BUG_ON(in_interrupt()); // We can't be called in an interrupt, yet
packet = hpsb_make_lockpacket(host, node, addr, extcode, data, arg);
- if (!packet)
- return -ENOMEM;
+ if (!packet)
+ return -ENOMEM;
packet->generation = generation;
- retval = hpsb_send_packet_and_wait(packet);
+ retval = hpsb_send_packet_and_wait(packet);
if (retval < 0)
goto hpsb_lock_fail;
- retval = hpsb_packet_success(packet);
+ retval = hpsb_packet_success(packet);
- if (retval == 0) {
- *data = packet->data[0];
- }
+ if (retval == 0) {
+ *data = packet->data[0];
+ }
-hpsb_lock_fail:
- hpsb_free_tlabel(packet);
- hpsb_free_packet(packet);
+ hpsb_lock_fail:
+ hpsb_free_tlabel(packet);
+ hpsb_free_packet(packet);
- return retval;
+ return retval;
}
-
int hpsb_send_gasp(struct hpsb_host *host, int channel, unsigned int generation,
- quadlet_t *buffer, size_t length, u32 specifier_id,
+ quadlet_t * buffer, size_t length, u32 specifier_id,
unsigned int version)
{
struct hpsb_packet *packet;
return -ENOMEM;
packet->data[0] = cpu_to_be32((host->node_id << 16) | specifier_id_hi);
- packet->data[1] = cpu_to_be32((specifier_id_lo << 24) | (version & 0x00ffffff));
+ packet->data[1] =
+ cpu_to_be32((specifier_id_lo << 24) | (version & 0x00ffffff));
memcpy(&(packet->data[2]), buffer, length - 8);
return retval;
}
-#endif /* 0 */
+#endif /* 0 */
kfree(iso);
}
-static struct hpsb_iso* hpsb_iso_common_init(struct hpsb_host *host, enum hpsb_iso_type type,
+static struct hpsb_iso *hpsb_iso_common_init(struct hpsb_host *host,
+ enum hpsb_iso_type type,
unsigned int data_buf_size,
unsigned int buf_packets,
- int channel,
- int dma_mode,
+ int channel, int dma_mode,
int irq_interval,
- void (*callback)(struct hpsb_iso*))
+ void (*callback) (struct hpsb_iso
+ *))
{
struct hpsb_iso *iso;
int dma_direction;
/* make sure driver supports the ISO API */
if (!host->driver->isoctl) {
- printk(KERN_INFO "ieee1394: host driver '%s' does not support the rawiso API\n",
+ printk(KERN_INFO
+ "ieee1394: host driver '%s' does not support the rawiso API\n",
host->driver->name);
return NULL;
}
if (buf_packets < 2)
buf_packets = 2;
- if ((dma_mode < HPSB_ISO_DMA_DEFAULT) || (dma_mode > HPSB_ISO_DMA_PACKET_PER_BUFFER))
- dma_mode=HPSB_ISO_DMA_DEFAULT;
+ if ((dma_mode < HPSB_ISO_DMA_DEFAULT)
+ || (dma_mode > HPSB_ISO_DMA_PACKET_PER_BUFFER))
+ dma_mode = HPSB_ISO_DMA_DEFAULT;
if ((irq_interval < 0) || (irq_interval > buf_packets / 4))
- irq_interval = buf_packets / 4;
- if (irq_interval == 0) /* really interrupt for each packet*/
+ irq_interval = buf_packets / 4;
+ if (irq_interval == 0) /* really interrupt for each packet */
irq_interval = 1;
if (channel < -1 || channel >= 64)
/* allocate and write the struct hpsb_iso */
- iso = kmalloc(sizeof(*iso) + buf_packets * sizeof(struct hpsb_iso_packet_info), GFP_KERNEL);
+ iso =
+ kmalloc(sizeof(*iso) +
+ buf_packets * sizeof(struct hpsb_iso_packet_info),
+ GFP_KERNEL);
if (!iso)
return NULL;
iso->prebuffer = 0;
/* allocate the packet buffer */
- if (dma_region_alloc(&iso->data_buf, iso->buf_size, host->pdev, dma_direction))
+ if (dma_region_alloc
+ (&iso->data_buf, iso->buf_size, host->pdev, dma_direction))
goto err;
return iso;
-err:
+ err:
hpsb_iso_shutdown(iso);
return NULL;
}
-int hpsb_iso_n_ready(struct hpsb_iso* iso)
+int hpsb_iso_n_ready(struct hpsb_iso *iso)
{
unsigned long flags;
int val;
return val;
}
-
-struct hpsb_iso* hpsb_iso_xmit_init(struct hpsb_host *host,
+struct hpsb_iso *hpsb_iso_xmit_init(struct hpsb_host *host,
unsigned int data_buf_size,
unsigned int buf_packets,
int channel,
int speed,
int irq_interval,
- void (*callback)(struct hpsb_iso*))
+ void (*callback) (struct hpsb_iso *))
{
struct hpsb_iso *iso = hpsb_iso_common_init(host, HPSB_ISO_XMIT,
data_buf_size, buf_packets,
- channel, HPSB_ISO_DMA_DEFAULT, irq_interval, callback);
+ channel,
+ HPSB_ISO_DMA_DEFAULT,
+ irq_interval, callback);
if (!iso)
return NULL;
iso->flags |= HPSB_ISO_DRIVER_INIT;
return iso;
-err:
+ err:
hpsb_iso_shutdown(iso);
return NULL;
}
-struct hpsb_iso* hpsb_iso_recv_init(struct hpsb_host *host,
+struct hpsb_iso *hpsb_iso_recv_init(struct hpsb_host *host,
unsigned int data_buf_size,
unsigned int buf_packets,
int channel,
int dma_mode,
int irq_interval,
- void (*callback)(struct hpsb_iso*))
+ void (*callback) (struct hpsb_iso *))
{
struct hpsb_iso *iso = hpsb_iso_common_init(host, HPSB_ISO_RECV,
data_buf_size, buf_packets,
- channel, dma_mode, irq_interval, callback);
+ channel, dma_mode,
+ irq_interval, callback);
if (!iso)
return NULL;
iso->flags |= HPSB_ISO_DRIVER_INIT;
return iso;
-err:
+ err:
hpsb_iso_shutdown(iso);
return NULL;
}
int hpsb_iso_recv_unlisten_channel(struct hpsb_iso *iso, unsigned char channel)
{
- if (iso->type != HPSB_ISO_RECV || iso->channel != -1 || channel >= 64)
- return -EINVAL;
- return iso->host->driver->isoctl(iso, RECV_UNLISTEN_CHANNEL, channel);
+ if (iso->type != HPSB_ISO_RECV || iso->channel != -1 || channel >= 64)
+ return -EINVAL;
+ return iso->host->driver->isoctl(iso, RECV_UNLISTEN_CHANNEL, channel);
}
int hpsb_iso_recv_set_channel_mask(struct hpsb_iso *iso, u64 mask)
{
if (iso->type != HPSB_ISO_RECV || iso->channel != -1)
return -EINVAL;
- return iso->host->driver->isoctl(iso, RECV_SET_CHANNEL_MASK, (unsigned long) &mask);
+ return iso->host->driver->isoctl(iso, RECV_SET_CHANNEL_MASK,
+ (unsigned long)&mask);
}
int hpsb_iso_recv_flush(struct hpsb_iso *iso)
isoctl_args[2] = sync;
- retval = iso->host->driver->isoctl(iso, RECV_START, (unsigned long) &isoctl_args[0]);
+ retval =
+ iso->host->driver->isoctl(iso, RECV_START,
+ (unsigned long)&isoctl_args[0]);
if (retval)
return retval;
static int hpsb_iso_check_offset_len(struct hpsb_iso *iso,
unsigned int offset, unsigned short len,
- unsigned int *out_offset, unsigned short *out_len)
+ unsigned int *out_offset,
+ unsigned short *out_len)
{
if (offset >= iso->buf_size)
return -EFAULT;
return 0;
}
-
-int hpsb_iso_xmit_queue_packet(struct hpsb_iso *iso, u32 offset, u16 len, u8 tag, u8 sy)
+int hpsb_iso_xmit_queue_packet(struct hpsb_iso *iso, u32 offset, u16 len,
+ u8 tag, u8 sy)
{
struct hpsb_iso_packet_info *info;
unsigned long flags;
info = &iso->infos[iso->first_packet];
/* check for bogus offset/length */
- if (hpsb_iso_check_offset_len(iso, offset, len, &info->offset, &info->len))
+ if (hpsb_iso_check_offset_len
+ (iso, offset, len, &info->offset, &info->len))
return -EFAULT;
info->tag = tag;
spin_lock_irqsave(&iso->lock, flags);
- rv = iso->host->driver->isoctl(iso, XMIT_QUEUE, (unsigned long) info);
+ rv = iso->host->driver->isoctl(iso, XMIT_QUEUE, (unsigned long)info);
if (rv)
goto out;
/* increment cursors */
- iso->first_packet = (iso->first_packet+1) % iso->buf_packets;
- iso->xmit_cycle = (iso->xmit_cycle+1) % 8000;
+ iso->first_packet = (iso->first_packet + 1) % iso->buf_packets;
+ iso->xmit_cycle = (iso->xmit_cycle + 1) % 8000;
iso->n_ready_packets--;
if (iso->prebuffer != 0) {
}
}
-out:
+ out:
spin_unlock_irqrestore(&iso->lock, flags);
return rv;
}
if (iso->type != HPSB_ISO_XMIT)
return -EINVAL;
- return wait_event_interruptible(iso->waitq, hpsb_iso_n_ready(iso) == iso->buf_packets);
+ return wait_event_interruptible(iso->waitq,
+ hpsb_iso_n_ready(iso) ==
+ iso->buf_packets);
}
void hpsb_iso_packet_sent(struct hpsb_iso *iso, int cycle, int error)
}
void hpsb_iso_packet_received(struct hpsb_iso *iso, u32 offset, u16 len,
- u16 total_len, u16 cycle, u8 channel, u8 tag, u8 sy)
+ u16 total_len, u16 cycle, u8 channel, u8 tag,
+ u8 sy)
{
unsigned long flags;
spin_lock_irqsave(&iso->lock, flags);
info->tag = tag;
info->sy = sy;
- iso->pkt_dma = (iso->pkt_dma+1) % iso->buf_packets;
+ iso->pkt_dma = (iso->pkt_dma + 1) % iso->buf_packets;
iso->n_ready_packets++;
}
spin_lock_irqsave(&iso->lock, flags);
for (i = 0; i < n_packets; i++) {
rv = iso->host->driver->isoctl(iso, RECV_RELEASE,
- (unsigned long) &iso->infos[iso->first_packet]);
+ (unsigned long)&iso->infos[iso->
+ first_packet]);
if (rv)
break;
- iso->first_packet = (iso->first_packet+1) % iso->buf_packets;
+ iso->first_packet = (iso->first_packet + 1) % iso->buf_packets;
iso->n_ready_packets--;
/* release memory from packets discarded when queue was full */
- if (iso->n_ready_packets == 0) { /* Release only after all prior packets handled */
+ if (iso->n_ready_packets == 0) { /* Release only after all prior packets handled */
if (iso->bytes_discarded != 0) {
struct hpsb_iso_packet_info inf;
inf.total_len = iso->bytes_discarded;
iso->host->driver->isoctl(iso, RECV_RELEASE,
- (unsigned long) &inf);
+ (unsigned long)&inf);
iso->bytes_discarded = 0;
}
}
unsigned int generation)
{
struct hpsb_host *host = hi->host;
- struct node_entry *ne;
-
- ne = kmalloc(sizeof(struct node_entry), GFP_KERNEL);
- if (!ne) return NULL;
+ struct node_entry *ne;
- memset(ne, 0, sizeof(struct node_entry));
+ ne = kzalloc(sizeof(*ne), GFP_KERNEL);
+ if (!ne)
+ return NULL;
ne->tpool = &host->tpool[nodeid & NODE_MASK];
- ne->host = host;
- ne->nodeid = nodeid;
+ ne->host = host;
+ ne->nodeid = nodeid;
ne->generation = generation;
ne->needs_probe = 1;
- ne->guid = guid;
+ ne->guid = guid;
ne->guid_vendor_id = (guid >> 40) & 0xffffff;
ne->guid_vendor_oui = nodemgr_find_oui_name(ne->guid_vendor_id);
ne->csr = csr;
(host->node_id == nodeid) ? "Host" : "Node",
NODE_BUS_ARGS(host, nodeid), (unsigned long long)guid);
- return ne;
+ return ne;
}
struct csr1212_keyval *kv;
u8 last_key_id = 0;
- ud = kmalloc(sizeof(struct unit_directory), GFP_KERNEL);
+ ud = kzalloc(sizeof(*ud), GFP_KERNEL);
if (!ud)
goto unit_directory_error;
- memset (ud, 0, sizeof(struct unit_directory));
-
ud->ne = ne;
ud->ignore_driver = ignore_drivers;
ud->address = ud_kv->offset + CSR1212_CONFIG_ROM_SPACE_BASE;
/* Logical Unit Number */
if (kv->key.type == CSR1212_KV_TYPE_IMMEDIATE) {
if (ud->flags & UNIT_DIRECTORY_HAS_LUN) {
- ud_child = kmalloc(sizeof(struct unit_directory), GFP_KERNEL);
+ ud_child = kmalloc(sizeof(*ud_child), GFP_KERNEL);
if (!ud_child)
goto unit_directory_error;
- memcpy(ud_child, ud, sizeof(struct unit_directory));
+ memcpy(ud_child, ud, sizeof(*ud_child));
nodemgr_register_device(ne, ud_child, &ne->device);
ud_child = NULL;
struct csr1212_csr *csr;
struct nodemgr_csr_info *ci;
- ci = kmalloc(sizeof(struct nodemgr_csr_info), GFP_KERNEL);
+ ci = kmalloc(sizeof(*ci), GFP_KERNEL);
if (!ci)
return;
struct hpsb_host *host = hi->host;
struct class *class = &nodemgr_ne_class;
struct class_device *cdev;
+ struct node_entry *ne;
/* Do some processing of the nodes we've probed. This pulls them
* into the sysfs layer if needed, and can result in processing of
* unit-directories, or just updating the node and it's
- * unit-directories. */
+ * unit-directories.
+ *
+ * Run updates before probes. Usually, updates are time-critical
+ * while probes are time-consuming. (Well, those probes need some
+ * improvement...) */
+
down_read(&class->subsys.rwsem);
- list_for_each_entry(cdev, &class->children, node)
- nodemgr_probe_ne(hi, container_of(cdev, struct node_entry, class_dev), generation);
+ list_for_each_entry(cdev, &class->children, node) {
+ ne = container_of(cdev, struct node_entry, class_dev);
+ if (!ne->needs_probe)
+ nodemgr_probe_ne(hi, ne, generation);
+ }
+ list_for_each_entry(cdev, &class->children, node) {
+ ne = container_of(cdev, struct node_entry, class_dev);
+ if (ne->needs_probe)
+ nodemgr_probe_ne(hi, ne, generation);
+ }
up_read(&class->subsys.rwsem);
int ret = 1;
packet = hpsb_make_phypacket(host,
- 0x003c0000 | NODEID_TO_NODE(host->node_id) << 24);
+ EXTPHYPACKET_TYPE_RESUME |
+ NODEID_TO_NODE(host->node_id) << PHYPACKET_PORT_SHIFT);
if (packet) {
packet->no_waiter = 1;
packet->generation = get_hpsb_generation(host);
return ne->generation == get_hpsb_generation(ne->host);
}
-/*
- * Returns a node entry (which has its reference count incremented) or NULL if
- * the GUID in question is not known. Getting a valid entry does not mean that
- * the node with this GUID is currently accessible (might be powered down).
- */
-struct node_entry *hpsb_guid_get_entry(u64 guid);
-
-/* Same as above, but use the nodeid to get an node entry. This is not
- * fool-proof by itself, since the nodeid can change. */
-struct node_entry *hpsb_nodeid_get_entry(struct hpsb_host *host, nodeid_t nodeid);
-
-/*
- * If the entry refers to a local host, this function will return the pointer
- * to the hpsb_host structure. It will return NULL otherwise. Once you have
- * established it is a local host, you can use that knowledge from then on (the
- * GUID won't wander to an external node). */
-struct hpsb_host *hpsb_get_host_by_ne(struct node_entry *ne);
-
/*
* This will fill in the given, pre-initialised hpsb_packet with the current
* information from the node entry (host, node ID, generation number). It will
#define PRINT(level, fmt, args...) \
printk(level "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id , ## args)
-static char version[] __devinitdata =
- "$Rev: 1313 $ Ben Collins <bcollins@debian.org>";
-
/* Module Parameters */
static int phys_dma = 1;
module_param(phys_dma, int, 0644);
sprintf (irq_buf, "%s", __irq_itoa(ohci->dev->irq));
#endif
PRINT(KERN_INFO, "OHCI-1394 %d.%d (PCI): IRQ=[%s] "
- "MMIO=[%lx-%lx] Max Packet=[%d]",
+ "MMIO=[%lx-%lx] Max Packet=[%d] IR/IT contexts=[%d/%d]",
((((buf) >> 16) & 0xf) + (((buf) >> 20) & 0xf) * 10),
((((buf) >> 4) & 0xf) + ((buf) & 0xf) * 10), irq_buf,
pci_resource_start(ohci->dev, 0),
pci_resource_start(ohci->dev, 0) + OHCI1394_REGISTER_SIZE - 1,
- ohci->max_packet_size);
+ ohci->max_packet_size,
+ ohci->nb_iso_rcv_ctx, ohci->nb_iso_xmit_ctx);
/* Check all of our ports to make sure that if anything is
* connected, we enable that port. */
d->ctrlClear = 0;
d->cmdPtr = 0;
- d->buf_cpu = kmalloc(d->num_desc * sizeof(quadlet_t*), GFP_ATOMIC);
- d->buf_bus = kmalloc(d->num_desc * sizeof(dma_addr_t), GFP_ATOMIC);
+ d->buf_cpu = kzalloc(d->num_desc * sizeof(*d->buf_cpu), GFP_ATOMIC);
+ d->buf_bus = kzalloc(d->num_desc * sizeof(*d->buf_bus), GFP_ATOMIC);
if (d->buf_cpu == NULL || d->buf_bus == NULL) {
PRINT(KERN_ERR, "Failed to allocate dma buffer");
free_dma_rcv_ctx(d);
return -ENOMEM;
}
- memset(d->buf_cpu, 0, d->num_desc * sizeof(quadlet_t*));
- memset(d->buf_bus, 0, d->num_desc * sizeof(dma_addr_t));
- d->prg_cpu = kmalloc(d->num_desc * sizeof(struct dma_cmd*),
- GFP_ATOMIC);
- d->prg_bus = kmalloc(d->num_desc * sizeof(dma_addr_t), GFP_ATOMIC);
+ d->prg_cpu = kzalloc(d->num_desc * sizeof(*d->prg_cpu), GFP_ATOMIC);
+ d->prg_bus = kzalloc(d->num_desc * sizeof(*d->prg_bus), GFP_ATOMIC);
if (d->prg_cpu == NULL || d->prg_bus == NULL) {
PRINT(KERN_ERR, "Failed to allocate dma prg");
free_dma_rcv_ctx(d);
return -ENOMEM;
}
- memset(d->prg_cpu, 0, d->num_desc * sizeof(struct dma_cmd*));
- memset(d->prg_bus, 0, d->num_desc * sizeof(dma_addr_t));
d->spb = kmalloc(d->split_buf_size, GFP_ATOMIC);
d->ctrlClear = 0;
d->cmdPtr = 0;
- d->prg_cpu = kmalloc(d->num_desc * sizeof(struct at_dma_prg*),
- GFP_KERNEL);
- d->prg_bus = kmalloc(d->num_desc * sizeof(dma_addr_t), GFP_KERNEL);
+ d->prg_cpu = kzalloc(d->num_desc * sizeof(*d->prg_cpu), GFP_KERNEL);
+ d->prg_bus = kzalloc(d->num_desc * sizeof(*d->prg_bus), GFP_KERNEL);
if (d->prg_cpu == NULL || d->prg_bus == NULL) {
PRINT(KERN_ERR, "Failed to allocate at dma prg");
free_dma_trm_ctx(d);
return -ENOMEM;
}
- memset(d->prg_cpu, 0, d->num_desc * sizeof(struct at_dma_prg*));
- memset(d->prg_bus, 0, d->num_desc * sizeof(dma_addr_t));
len = sprintf(pool_name, "ohci1394_trm_prg");
sprintf(pool_name+len, "%d", num_allocs);
.hw_csr_reg = ohci_hw_csr_reg,
};
-\f
-
/***********************************
* PCI Driver Interface functions *
***********************************/
static int __devinit ohci1394_pci_probe(struct pci_dev *dev,
const struct pci_device_id *ent)
{
- static int version_printed = 0;
-
struct hpsb_host *host;
struct ti_ohci *ohci; /* shortcut to currently handled device */
unsigned long ohci_base;
- if (version_printed++ == 0)
- PRINT_G(KERN_INFO, "%s", version);
-
if (pci_enable_device(dev))
FAIL(-ENXIO, "Failed to enable OHCI hardware");
pci_set_master(dev);
/* Determine the number of available IR and IT contexts. */
ohci->nb_iso_rcv_ctx =
get_nb_iso_ctx(ohci, OHCI1394_IsoRecvIntMaskSet);
- DBGMSG("%d iso receive contexts available",
- ohci->nb_iso_rcv_ctx);
-
ohci->nb_iso_xmit_ctx =
get_nb_iso_ctx(ohci, OHCI1394_IsoXmitIntMaskSet);
- DBGMSG("%d iso transmit contexts available",
- ohci->nb_iso_xmit_ctx);
/* Set the usage bits for non-existent contexts so they can't
* be allocated */
.suspend = ohci1394_pci_suspend,
};
-\f
-
/***********************************
* OHCI1394 Video Interface *
***********************************/
EXPORT_SYMBOL(ohci1394_register_iso_tasklet);
EXPORT_SYMBOL(ohci1394_unregister_iso_tasklet);
-
/***********************************
* General module initialization *
***********************************/
int self_id_errors;
- /* Tasklets for iso receive and transmit, used by video1394,
- * amdtp and dv1394 */
+ /* Tasklets for iso receive and transmit, used by video1394
+ * and dv1394 */
struct list_head iso_tasklet_list;
spinlock_t iso_tasklet_list_lock;
struct i2c_algo_bit_data i2c_adapter_data;
error = -ENOMEM;
- i2c_ad = kmalloc(sizeof(struct i2c_adapter), SLAB_KERNEL);
+ i2c_ad = kmalloc(sizeof(*i2c_ad), SLAB_KERNEL);
if (!i2c_ad) FAIL("failed to allocate I2C adapter memory");
memcpy(i2c_ad, &bit_ops, sizeof(struct i2c_adapter));
{
struct pending_request *req;
- req = (struct pending_request *)kmalloc(sizeof(struct pending_request),
- flags);
- if (req != NULL) {
- memset(req, 0, sizeof(struct pending_request));
+ req = kzalloc(sizeof(*req), flags);
+ if (req)
INIT_LIST_HEAD(&req->list);
- }
return req;
}
struct host_info *hi;
unsigned long flags;
- hi = (struct host_info *)kmalloc(sizeof(struct host_info), GFP_KERNEL);
+ hi = kmalloc(sizeof(*hi), GFP_KERNEL);
- if (hi != NULL) {
+ if (hi) {
INIT_LIST_HEAD(&hi->list);
hi->host = host;
INIT_LIST_HEAD(&hi->file_info_list);
break;
if (!ibs) {
- ibs = kmalloc(sizeof(struct iso_block_store)
- + length, SLAB_ATOMIC);
+ ibs = kmalloc(sizeof(*ibs) + length,
+ SLAB_ATOMIC);
if (!ibs) {
kfree(req);
break;
break;
if (!ibs) {
- ibs = kmalloc(sizeof(struct iso_block_store)
- + length, SLAB_ATOMIC);
+ ibs = kmalloc(sizeof(*ibs) + length,
+ SLAB_ATOMIC);
if (!ibs) {
kfree(req);
break;
switch (req->req.type) {
case RAW1394_REQ_LIST_CARDS:
spin_lock_irqsave(&host_info_lock, flags);
- khl = kmalloc(sizeof(struct raw1394_khost_list) * host_count,
- SLAB_ATOMIC);
+ khl = kmalloc(sizeof(*khl) * host_count, SLAB_ATOMIC);
- if (khl != NULL) {
+ if (khl) {
req->req.misc = host_count;
req->data = (quadlet_t *) khl;
}
spin_unlock_irqrestore(&host_info_lock, flags);
- if (khl != NULL) {
+ if (khl) {
req->req.error = RAW1394_ERROR_NONE;
req->req.length = min(req->req.length,
(u32) (sizeof
return (-EINVAL);
}
/* addr-list-entry for fileinfo */
- addr = (struct arm_addr *)kmalloc(sizeof(struct arm_addr), SLAB_KERNEL);
+ addr = kmalloc(sizeof(*addr), SLAB_KERNEL);
if (!addr) {
req->req.length = 0;
return (-ENOMEM);
}
/* allocation of addr_space_buffer */
- addr->addr_space_buffer = (u8 *) vmalloc(req->req.length);
+ addr->addr_space_buffer = vmalloc(req->req.length);
if (!(addr->addr_space_buffer)) {
kfree(addr);
req->req.length = 0;
return -ENOMEM;
}
- cache->filled_head =
- kmalloc(sizeof(struct csr1212_cache_region), GFP_KERNEL);
+ cache->filled_head = kmalloc(sizeof(*cache->filled_head), GFP_KERNEL);
if (!cache->filled_head) {
csr1212_release_keyval(fi->csr1212_dirs[dr]);
fi->csr1212_dirs[dr] = NULL;
req->req.length)) {
csr1212_release_keyval(fi->csr1212_dirs[dr]);
fi->csr1212_dirs[dr] = NULL;
- CSR1212_FREE(cache);
ret = -EFAULT;
} else {
cache->len = req->req.length;
}
}
kfree(cache->filled_head);
- kfree(cache);
+ CSR1212_FREE(cache);
if (ret >= 0) {
/* we have to free the request, because we queue no response,
/* ensure user-supplied buffer is accessible and big enough */
if (!access_ok(VERIFY_WRITE, upackets.infos,
- upackets.n_packets *
- sizeof(struct raw1394_iso_packet_info)))
+ upackets.n_packets *
+ sizeof(struct raw1394_iso_packet_info)))
return -EFAULT;
/* copy the packet_infos out */
/* ensure user-supplied buffer is accessible and big enough */
if (!access_ok(VERIFY_READ, upackets.infos,
- upackets.n_packets *
- sizeof(struct raw1394_iso_packet_info)))
+ upackets.n_packets *
+ sizeof(struct raw1394_iso_packet_info)))
return -EFAULT;
/* copy the infos structs in and queue the packets */
{
struct file_info *fi;
- fi = kmalloc(sizeof(struct file_info), SLAB_KERNEL);
- if (fi == NULL)
+ fi = kzalloc(sizeof(*fi), SLAB_KERNEL);
+ if (!fi)
return -ENOMEM;
- memset(fi, 0, sizeof(struct file_info));
fi->notification = (u8) RAW1394_NOTIFY_ON; /* busreset notification */
INIT_LIST_HEAD(&fi->list);
list) {
entry = fi_hlp->addr_list.next;
while (entry != &(fi_hlp->addr_list)) {
- arm_addr = list_entry(entry,
- struct
+ arm_addr = list_entry(entry, struct
arm_addr,
addr_list);
if (arm_addr->start ==
hpsb_register_highlevel(&raw1394_highlevel);
- if (IS_ERR(class_device_create(hpsb_protocol_class, NULL, MKDEV(
- IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
- NULL, RAW1394_DEVICE_NAME))) {
+ if (IS_ERR
+ (class_device_create
+ (hpsb_protocol_class, NULL,
+ MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16), NULL,
+ RAW1394_DEVICE_NAME))) {
ret = -EFAULT;
goto out_unreg;
}
-
- devfs_mk_cdev(MKDEV(
- IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
- S_IFCHR | S_IRUSR | S_IWUSR, RAW1394_DEVICE_NAME);
+
+ devfs_mk_cdev(MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16),
+ S_IFCHR | S_IRUSR | S_IWUSR, RAW1394_DEVICE_NAME);
cdev_init(&raw1394_cdev, &raw1394_fops);
raw1394_cdev.owner = THIS_MODULE;
goto out;
-out_dev:
+ out_dev:
devfs_remove(RAW1394_DEVICE_NAME);
class_device_destroy(hpsb_protocol_class,
- MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16));
-out_unreg:
+ MKDEV(IEEE1394_MAJOR,
+ IEEE1394_MINOR_BLOCK_RAW1394 * 16));
+ out_unreg:
hpsb_unregister_highlevel(&raw1394_highlevel);
-out:
+ out:
return ret;
}
static void __exit cleanup_raw1394(void)
{
class_device_destroy(hpsb_protocol_class,
- MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16));
+ MKDEV(IEEE1394_MAJOR,
+ IEEE1394_MINOR_BLOCK_RAW1394 * 16));
cdev_del(&raw1394_cdev);
devfs_remove(RAW1394_DEVICE_NAME);
hpsb_unregister_highlevel(&raw1394_highlevel);
#include "ieee1394_transactions.h"
#include "sbp2.h"
-static char version[] __devinitdata =
- "$Rev: 1306 $ Ben Collins <bcollins@debian.org>";
-
/*
* Module load parameter definitions
*/
module_param(force_inquiry_hack, int, 0444);
MODULE_PARM_DESC(force_inquiry_hack, "Force SCSI inquiry hack (default = 0)");
-
/*
* Export information about protocols/devices supported by this driver.
*/
static struct ieee1394_device_id sbp2_id_table[] = {
{
- .match_flags =IEEE1394_MATCH_SPECIFIER_ID |
- IEEE1394_MATCH_VERSION,
- .specifier_id = SBP2_UNIT_SPEC_ID_ENTRY & 0xffffff,
- .version = SBP2_SW_VERSION_ENTRY & 0xffffff
- },
- { }
+ .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION,
+ .specifier_id = SBP2_UNIT_SPEC_ID_ENTRY & 0xffffff,
+ .version = SBP2_SW_VERSION_ENTRY & 0xffffff},
+ {}
};
MODULE_DEVICE_TABLE(ieee1394, sbp2_id_table);
#define SBP2_ERR(fmt, args...) HPSB_ERR("sbp2: "fmt, ## args)
-
/*
* Globals
*/
#ifdef CONFIG_IEEE1394_SBP2_PHYS_DMA
static struct hpsb_address_ops sbp2_physdma_ops = {
- .read = sbp2_handle_physdma_read,
- .write = sbp2_handle_physdma_write,
+ .read = sbp2_handle_physdma_read,
+ .write = sbp2_handle_physdma_write,
};
#endif
* General utility functions
**************************************/
-
#ifndef __BIG_ENDIAN
/*
* Converts a buffer from be32 to cpu byte ordering. Length is in bytes.
/*
* Debug packet dump routine. Length is in bytes.
*/
-static void sbp2util_packet_dump(void *buffer, int length, char *dump_name, u32 dump_phys_addr)
+static void sbp2util_packet_dump(void *buffer, int length, char *dump_name,
+ u32 dump_phys_addr)
{
int i;
unsigned char *dump = buffer;
printk(" ");
if ((i & 0xf) == 0)
printk("\n ");
- printk("%02x ", (int) dump[i]);
+ printk("%02x ", (int)dump[i]);
}
printk("\n");
for (i = timeout; (i > 0 && atomic_read(done) == 0); i-= HZ/10) {
if (msleep_interruptible(100)) /* 100ms */
- return(1);
+ return 1;
}
- return ((i > 0) ? 0:1);
+ return (i > 0) ? 0 : 1;
}
/* Free's an allocated packet */
* subaction and returns immediately. Can be used from interrupts.
*/
static int sbp2util_node_write_no_wait(struct node_entry *ne, u64 addr,
- quadlet_t *buffer, size_t length)
+ quadlet_t *buffer, size_t length)
{
struct hpsb_packet *packet;
packet = hpsb_make_writepacket(ne->host, ne->nodeid,
addr, buffer, length);
- if (!packet)
- return -ENOMEM;
+ if (!packet)
+ return -ENOMEM;
- hpsb_set_packet_complete_task(packet, (void (*)(void*))sbp2_free_packet,
+ hpsb_set_packet_complete_task(packet,
+ (void (*)(void *))sbp2_free_packet,
packet);
hpsb_node_fill_packet(ne, packet);
- if (hpsb_send_packet(packet) < 0) {
+ if (hpsb_send_packet(packet) < 0) {
sbp2_free_packet(packet);
return -EIO;
}
spin_lock_irqsave(&scsi_id->sbp2_command_orb_lock, flags);
for (i = 0; i < orbs; i++) {
- command = (struct sbp2_command_info *)
- kmalloc(sizeof(struct sbp2_command_info), GFP_ATOMIC);
+ command = kzalloc(sizeof(*command), GFP_ATOMIC);
if (!command) {
- spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
- return(-ENOMEM);
+ spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock,
+ flags);
+ return -ENOMEM;
}
- memset(command, '\0', sizeof(struct sbp2_command_info));
command->command_orb_dma =
- pci_map_single (hi->host->pdev, &command->command_orb,
- sizeof(struct sbp2_command_orb),
- PCI_DMA_BIDIRECTIONAL);
+ pci_map_single(hi->host->pdev, &command->command_orb,
+ sizeof(struct sbp2_command_orb),
+ PCI_DMA_BIDIRECTIONAL);
SBP2_DMA_ALLOC("single command orb DMA");
command->sge_dma =
- pci_map_single (hi->host->pdev, &command->scatter_gather_element,
- sizeof(command->scatter_gather_element),
- PCI_DMA_BIDIRECTIONAL);
+ pci_map_single(hi->host->pdev,
+ &command->scatter_gather_element,
+ sizeof(command->scatter_gather_element),
+ PCI_DMA_BIDIRECTIONAL);
SBP2_DMA_ALLOC("scatter_gather_element");
INIT_LIST_HEAD(&command->list);
list_add_tail(&command->list, &scsi_id->sbp2_command_orb_completed);
list_for_each_entry(command, &scsi_id->sbp2_command_orb_inuse, list) {
if (command->command_orb_dma == orb) {
spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
- return (command);
+ return command;
}
}
}
SBP2_ORB_DEBUG("could not match command orb %x", (unsigned int)orb);
- return(NULL);
+ return NULL;
}
/*
list_for_each_entry(command, &scsi_id->sbp2_command_orb_inuse, list) {
if (command->Current_SCpnt == SCpnt) {
spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
- return (command);
+ return command;
}
}
}
spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
- return(NULL);
+ return NULL;
}
/*
SBP2_ERR("sbp2util_allocate_command_orb - No orbs available!");
}
spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags);
- return (command);
+ return command;
}
/* Free our DMA's */
/*
* This function moves a command to the completed orb list.
*/
-static void sbp2util_mark_command_completed(struct scsi_id_instance_data *scsi_id, struct sbp2_command_info *command)
+static void sbp2util_mark_command_completed(struct scsi_id_instance_data *scsi_id,
+ struct sbp2_command_info *command)
{
unsigned long flags;
return scsi_id && scsi_id->ne && !scsi_id->ne->in_limbo;
}
-\f
-
/*********************************************
* IEEE-1394 core driver stack related section
*********************************************/
if (ud->flags & UNIT_DIRECTORY_HAS_LUN_DIRECTORY)
return -ENODEV;
- scsi_id = sbp2_alloc_device(ud);
+ scsi_id = sbp2_alloc_device(ud);
- if (!scsi_id)
- return -ENOMEM;
+ if (!scsi_id)
+ return -ENOMEM;
- sbp2_parse_unit_directory(scsi_id, ud);
+ sbp2_parse_unit_directory(scsi_id, ud);
- return sbp2_start_device(scsi_id);
+ return sbp2_start_device(scsi_id);
}
static int sbp2_remove(struct device *dev)
SBP2_DEBUG("sbp2_alloc_device");
- scsi_id = kmalloc(sizeof(*scsi_id), GFP_KERNEL);
+ scsi_id = kzalloc(sizeof(*scsi_id), GFP_KERNEL);
if (!scsi_id) {
SBP2_ERR("failed to create scsi_id");
goto failed_alloc;
}
- memset(scsi_id, 0, sizeof(*scsi_id));
scsi_id->ne = ud->ne;
scsi_id->ud = ud;
INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_completed);
INIT_LIST_HEAD(&scsi_id->scsi_list);
spin_lock_init(&scsi_id->sbp2_command_orb_lock);
- scsi_id->sbp2_device_type_and_lun = SBP2_DEVICE_TYPE_LUN_UNINITIALIZED;
+ scsi_id->sbp2_lun = 0;
ud->device.driver_data = scsi_id;
/* Register our host with the SCSI stack. */
scsi_host = scsi_host_alloc(&scsi_driver_template,
- sizeof (unsigned long));
+ sizeof(unsigned long));
if (!scsi_host) {
SBP2_ERR("failed to register scsi host");
goto failed_alloc;
return NULL;
}
-
static void sbp2_host_reset(struct hpsb_host *host)
{
struct sbp2scsi_host_info *hi;
}
}
-
/*
* This function is where we first pull the node unique ids, and then
* allocate memory and register a SBP-2 device.
/* Login FIFO DMA */
scsi_id->login_response =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_login_response),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_login_response),
&scsi_id->login_response_dma);
if (!scsi_id->login_response)
goto alloc_fail;
/* Query logins ORB DMA */
scsi_id->query_logins_orb =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_query_logins_orb),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_query_logins_orb),
&scsi_id->query_logins_orb_dma);
if (!scsi_id->query_logins_orb)
goto alloc_fail;
/* Query logins response DMA */
scsi_id->query_logins_response =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_query_logins_response),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_query_logins_response),
&scsi_id->query_logins_response_dma);
if (!scsi_id->query_logins_response)
goto alloc_fail;
/* Reconnect ORB DMA */
scsi_id->reconnect_orb =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_reconnect_orb),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_reconnect_orb),
&scsi_id->reconnect_orb_dma);
if (!scsi_id->reconnect_orb)
goto alloc_fail;
/* Logout ORB DMA */
scsi_id->logout_orb =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_logout_orb),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_logout_orb),
&scsi_id->logout_orb_dma);
if (!scsi_id->logout_orb)
goto alloc_fail;
/* Login ORB DMA */
scsi_id->login_orb =
- pci_alloc_consistent(hi->host->pdev, sizeof(struct sbp2_login_orb),
+ pci_alloc_consistent(hi->host->pdev,
+ sizeof(struct sbp2_login_orb),
&scsi_id->login_orb_dma);
- if (!scsi_id->login_orb) {
-alloc_fail:
- if (scsi_id->query_logins_response) {
- pci_free_consistent(hi->host->pdev,
- sizeof(struct sbp2_query_logins_response),
- scsi_id->query_logins_response,
- scsi_id->query_logins_response_dma);
- SBP2_DMA_FREE("query logins response DMA");
- }
-
- if (scsi_id->query_logins_orb) {
- pci_free_consistent(hi->host->pdev,
- sizeof(struct sbp2_query_logins_orb),
- scsi_id->query_logins_orb,
- scsi_id->query_logins_orb_dma);
- SBP2_DMA_FREE("query logins ORB DMA");
- }
-
- if (scsi_id->logout_orb) {
- pci_free_consistent(hi->host->pdev,
- sizeof(struct sbp2_logout_orb),
- scsi_id->logout_orb,
- scsi_id->logout_orb_dma);
- SBP2_DMA_FREE("logout ORB DMA");
- }
-
- if (scsi_id->reconnect_orb) {
- pci_free_consistent(hi->host->pdev,
- sizeof(struct sbp2_reconnect_orb),
- scsi_id->reconnect_orb,
- scsi_id->reconnect_orb_dma);
- SBP2_DMA_FREE("reconnect ORB DMA");
- }
-
- if (scsi_id->login_response) {
- pci_free_consistent(hi->host->pdev,
- sizeof(struct sbp2_login_response),
- scsi_id->login_response,
- scsi_id->login_response_dma);
- SBP2_DMA_FREE("login FIFO DMA");
- }
-
- list_del(&scsi_id->scsi_list);
-
- kfree(scsi_id);
-
- SBP2_ERR ("Could not allocate memory for scsi_id");
-
- return -ENOMEM;
- }
+ if (!scsi_id->login_orb)
+ goto alloc_fail;
SBP2_DMA_ALLOC("consistent DMA region for login ORB");
SBP2_DEBUG("New SBP-2 device inserted, SCSI ID = %x", scsi_id->ud->id);
sbp2_remove_device(scsi_id);
return -EINTR;
}
-
+
/*
* Login to the sbp-2 device
*/
error = scsi_add_device(scsi_id->scsi_host, 0, scsi_id->ud->id, 0);
if (error) {
SBP2_ERR("scsi_add_device failed");
+ sbp2_logout_device(scsi_id);
+ sbp2_remove_device(scsi_id);
return error;
}
return 0;
+
+alloc_fail:
+ SBP2_ERR("Could not allocate memory for scsi_id");
+ sbp2_remove_device(scsi_id);
+ return -ENOMEM;
}
/*
* This function deals with physical dma write requests (for adapters that do not support
* physical dma in hardware). Mostly just here for debugging...
*/
-static int sbp2_handle_physdma_write(struct hpsb_host *host, int nodeid, int destid, quadlet_t *data,
- u64 addr, size_t length, u16 flags)
+static int sbp2_handle_physdma_write(struct hpsb_host *host, int nodeid,
+ int destid, quadlet_t *data, u64 addr,
+ size_t length, u16 flags)
{
- /*
- * Manually put the data in the right place.
- */
- memcpy(bus_to_virt((u32)addr), data, length);
- sbp2util_packet_dump(data, length, "sbp2 phys dma write by device", (u32)addr);
- return(RCODE_COMPLETE);
+ /*
+ * Manually put the data in the right place.
+ */
+ memcpy(bus_to_virt((u32) addr), data, length);
+ sbp2util_packet_dump(data, length, "sbp2 phys dma write by device",
+ (u32) addr);
+ return RCODE_COMPLETE;
}
/*
* This function deals with physical dma read requests (for adapters that do not support
* physical dma in hardware). Mostly just here for debugging...
*/
-static int sbp2_handle_physdma_read(struct hpsb_host *host, int nodeid, quadlet_t *data,
- u64 addr, size_t length, u16 flags)
+static int sbp2_handle_physdma_read(struct hpsb_host *host, int nodeid,
+ quadlet_t *data, u64 addr, size_t length,
+ u16 flags)
{
- /*
- * Grab data from memory and send a read response.
- */
- memcpy(data, bus_to_virt((u32)addr), length);
- sbp2util_packet_dump(data, length, "sbp2 phys dma read by device", (u32)addr);
- return(RCODE_COMPLETE);
+ /*
+ * Grab data from memory and send a read response.
+ */
+ memcpy(data, bus_to_virt((u32) addr), length);
+ sbp2util_packet_dump(data, length, "sbp2 phys dma read by device",
+ (u32) addr);
+ return RCODE_COMPLETE;
}
#endif
-
/**************************************
* SBP-2 protocol related section
**************************************/
-/*
- * This function determines if we should convert scsi commands for a particular sbp2 device type
- */
-static __inline__ int sbp2_command_conversion_device_type(u8 device_type)
-{
- return (((device_type == TYPE_DISK) ||
- (device_type == TYPE_RBC) ||
- (device_type == TYPE_ROM)) ? 1:0);
-}
-
/*
* This function queries the device for the maximum concurrent logins it
* supports.
scsi_id->query_logins_orb->lun_misc = ORB_SET_FUNCTION(SBP2_QUERY_LOGINS_REQUEST);
scsi_id->query_logins_orb->lun_misc |= ORB_SET_NOTIFY(1);
- if (scsi_id->sbp2_device_type_and_lun != SBP2_DEVICE_TYPE_LUN_UNINITIALIZED) {
- scsi_id->query_logins_orb->lun_misc |= ORB_SET_LUN(scsi_id->sbp2_device_type_and_lun);
- SBP2_DEBUG("sbp2_query_logins: set lun to %d",
- ORB_SET_LUN(scsi_id->sbp2_device_type_and_lun));
- }
+ scsi_id->query_logins_orb->lun_misc |= ORB_SET_LUN(scsi_id->sbp2_lun);
SBP2_DEBUG("sbp2_query_logins: lun_misc initialized");
scsi_id->query_logins_orb->reserved_resp_length =
if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, 2*HZ)) {
SBP2_INFO("Error querying logins to SBP-2 device - timed out");
- return(-EIO);
+ return -EIO;
}
if (scsi_id->status_block.ORB_offset_lo != scsi_id->query_logins_orb_dma) {
SBP2_INFO("Error querying logins to SBP-2 device - timed out");
- return(-EIO);
+ return -EIO;
}
if (STATUS_GET_RESP(scsi_id->status_block.ORB_offset_hi_misc) ||
STATUS_GET_SBP_STATUS(scsi_id->status_block.ORB_offset_hi_misc)) {
SBP2_INFO("Error querying logins to SBP-2 device - timed out");
- return(-EIO);
+ return -EIO;
}
sbp2util_cpu_to_be32_buffer(scsi_id->query_logins_response, sizeof(struct sbp2_query_logins_response));
SBP2_DEBUG("Number of active logins: %d", active_logins);
if (active_logins >= max_logins) {
- return(-EIO);
+ return -EIO;
}
return 0;
if (!scsi_id->login_orb) {
SBP2_DEBUG("sbp2_login_device: login_orb not alloc'd!");
- return(-EIO);
+ return -EIO;
}
if (!exclusive_login) {
if (sbp2_query_logins(scsi_id)) {
SBP2_INFO("Device does not support any more concurrent logins");
- return(-EIO);
+ return -EIO;
}
}
scsi_id->login_orb->lun_misc |= ORB_SET_RECONNECT(0); /* One second reconnect time */
scsi_id->login_orb->lun_misc |= ORB_SET_EXCLUSIVE(exclusive_login); /* Exclusive access to device */
scsi_id->login_orb->lun_misc |= ORB_SET_NOTIFY(1); /* Notify us of login complete */
- /* Set the lun if we were able to pull it from the device's unit directory */
- if (scsi_id->sbp2_device_type_and_lun != SBP2_DEVICE_TYPE_LUN_UNINITIALIZED) {
- scsi_id->login_orb->lun_misc |= ORB_SET_LUN(scsi_id->sbp2_device_type_and_lun);
- SBP2_DEBUG("sbp2_query_logins: set lun to %d",
- ORB_SET_LUN(scsi_id->sbp2_device_type_and_lun));
- }
+ scsi_id->login_orb->lun_misc |= ORB_SET_LUN(scsi_id->sbp2_lun);
SBP2_DEBUG("sbp2_login_device: lun_misc initialized");
scsi_id->login_orb->passwd_resp_lengths =
*/
if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, 20*HZ)) {
SBP2_ERR("Error logging into SBP-2 device - login timed-out");
- return(-EIO);
+ return -EIO;
}
/*
*/
if (scsi_id->status_block.ORB_offset_lo != scsi_id->login_orb_dma) {
SBP2_ERR("Error logging into SBP-2 device - login timed-out");
- return(-EIO);
+ return -EIO;
}
/*
STATUS_GET_SBP_STATUS(scsi_id->status_block.ORB_offset_hi_misc)) {
SBP2_ERR("Error logging into SBP-2 device - login failed");
- return(-EIO);
+ return -EIO;
}
/*
SBP2_INFO("Logged into SBP-2 device");
- return(0);
+ return 0;
}
atomic_set(&scsi_id->sbp2_login_complete, 0);
error = hpsb_node_write(scsi_id->ne,
- scsi_id->sbp2_management_agent_addr,
- data, 8);
+ scsi_id->sbp2_management_agent_addr, data, 8);
if (error)
return error;
SBP2_INFO("Logged out of SBP-2 device");
- return(0);
+ return 0;
}
atomic_set(&scsi_id->sbp2_login_complete, 0);
error = hpsb_node_write(scsi_id->ne,
- scsi_id->sbp2_management_agent_addr,
- data, 8);
+ scsi_id->sbp2_management_agent_addr, data, 8);
if (error)
return error;
*/
if (sbp2util_down_timeout(&scsi_id->sbp2_login_complete, HZ)) {
SBP2_ERR("Error reconnecting to SBP-2 device - reconnect timed-out");
- return(-EIO);
+ return -EIO;
}
/*
*/
if (scsi_id->status_block.ORB_offset_lo != scsi_id->reconnect_orb_dma) {
SBP2_ERR("Error reconnecting to SBP-2 device - reconnect timed-out");
- return(-EIO);
+ return -EIO;
}
/*
STATUS_GET_SBP_STATUS(scsi_id->status_block.ORB_offset_hi_misc)) {
SBP2_ERR("Error reconnecting to SBP-2 device - reconnect failed");
- return(-EIO);
+ return -EIO;
}
HPSB_DEBUG("Reconnected to SBP-2 device");
- return(0);
+ return 0;
}
SBP2_ERR("sbp2_set_busy_timeout error");
}
- return(0);
+ return 0;
}
-
/*
* This function is called to parse sbp2 device's config rom unit
* directory. Used to determine things like sbp2 management agent offset,
struct csr1212_dentry *dentry;
u64 management_agent_addr;
u32 command_set_spec_id, command_set, unit_characteristics,
- firmware_revision, workarounds;
+ firmware_revision, workarounds;
int i;
SBP2_DEBUG("sbp2_parse_unit_directory");
if (kv->key.type == CSR1212_KV_TYPE_CSR_OFFSET) {
/* Save off the management agent address */
management_agent_addr =
- CSR1212_REGISTER_SPACE_BASE +
- (kv->value.csr_offset << 2);
+ CSR1212_REGISTER_SPACE_BASE +
+ (kv->value.csr_offset << 2);
SBP2_DEBUG("sbp2_management_agent_addr = %x",
- (unsigned int) management_agent_addr);
+ (unsigned int)management_agent_addr);
} else if (kv->key.type == CSR1212_KV_TYPE_IMMEDIATE) {
- scsi_id->sbp2_device_type_and_lun = kv->value.immediate;
+ scsi_id->sbp2_lun =
+ ORB_SET_LUN(kv->value.immediate);
}
break;
/* Command spec organization */
command_set_spec_id = kv->value.immediate;
SBP2_DEBUG("sbp2_command_set_spec_id = %x",
- (unsigned int) command_set_spec_id);
+ (unsigned int)command_set_spec_id);
break;
case SBP2_COMMAND_SET_KEY:
/* Command set used by sbp2 device */
command_set = kv->value.immediate;
SBP2_DEBUG("sbp2_command_set = %x",
- (unsigned int) command_set);
+ (unsigned int)command_set);
break;
case SBP2_UNIT_CHARACTERISTICS_KEY:
*/
unit_characteristics = kv->value.immediate;
SBP2_DEBUG("sbp2_unit_characteristics = %x",
- (unsigned int) unit_characteristics);
+ (unsigned int)unit_characteristics);
break;
case SBP2_FIRMWARE_REVISION_KEY:
firmware_revision = kv->value.immediate;
if (force_inquiry_hack)
SBP2_INFO("sbp2_firmware_revision = %x",
- (unsigned int) firmware_revision);
- else SBP2_DEBUG("sbp2_firmware_revision = %x",
- (unsigned int) firmware_revision);
+ (unsigned int)firmware_revision);
+ else
+ SBP2_DEBUG("sbp2_firmware_revision = %x",
+ (unsigned int)firmware_revision);
break;
default:
scsi_id->sbp2_firmware_revision = firmware_revision;
scsi_id->workarounds = workarounds;
if (ud->flags & UNIT_DIRECTORY_HAS_LUN)
- scsi_id->sbp2_device_type_and_lun = ud->lun;
+ scsi_id->sbp2_lun = ORB_SET_LUN(ud->lun);
}
}
SBP2_DEBUG("sbp2_max_speed_and_size");
/* Initial setting comes from the hosts speed map */
- scsi_id->speed_code = hi->host->speed_map[NODEID_TO_NODE(hi->host->node_id) * 64
- + NODEID_TO_NODE(scsi_id->ne->nodeid)];
+ scsi_id->speed_code =
+ hi->host->speed_map[NODEID_TO_NODE(hi->host->node_id) * 64 +
+ NODEID_TO_NODE(scsi_id->ne->nodeid)];
/* Bump down our speed if the user requested it */
if (scsi_id->speed_code > max_speed) {
/* Payload size is the lesser of what our speed supports and what
* our host supports. */
- scsi_id->max_payload_size = min(sbp2_speedto_max_payload[scsi_id->speed_code],
- (u8)(hi->host->csr.max_rec - 1));
+ scsi_id->max_payload_size =
+ min(sbp2_speedto_max_payload[scsi_id->speed_code],
+ (u8) (hi->host->csr.max_rec - 1));
HPSB_DEBUG("Node " NODE_BUS_FMT ": Max speed [%s] - Max payload [%u]",
NODE_BUS_ARGS(hi->host, scsi_id->ne->nodeid),
hpsb_speedto_str[scsi_id->speed_code],
- 1 << ((u32)scsi_id->max_payload_size + 2));
+ 1 << ((u32) scsi_id->max_payload_size + 2));
- return(0);
+ return 0;
}
/*
*/
scsi_id->last_orb = NULL;
- return(0);
+ return 0;
+}
+
+static void sbp2_prep_command_orb_sg(struct sbp2_command_orb *orb,
+ struct sbp2scsi_host_info *hi,
+ struct sbp2_command_info *command,
+ unsigned int scsi_use_sg,
+ struct scatterlist *sgpnt,
+ u32 orb_direction,
+ enum dma_data_direction dma_dir)
+{
+ command->dma_dir = dma_dir;
+ orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
+ orb->misc |= ORB_SET_DIRECTION(orb_direction);
+
+ /* Special case if only one element (and less than 64KB in size) */
+ if ((scsi_use_sg == 1) &&
+ (sgpnt[0].length <= SBP2_MAX_SG_ELEMENT_LENGTH)) {
+
+ SBP2_DEBUG("Only one s/g element");
+ command->dma_size = sgpnt[0].length;
+ command->dma_type = CMD_DMA_PAGE;
+ command->cmd_dma = pci_map_page(hi->host->pdev,
+ sgpnt[0].page,
+ sgpnt[0].offset,
+ command->dma_size,
+ command->dma_dir);
+ SBP2_DMA_ALLOC("single page scatter element");
+
+ orb->data_descriptor_lo = command->cmd_dma;
+ orb->misc |= ORB_SET_DATA_SIZE(command->dma_size);
+
+ } else {
+ struct sbp2_unrestricted_page_table *sg_element =
+ &command->scatter_gather_element[0];
+ u32 sg_count, sg_len;
+ dma_addr_t sg_addr;
+ int i, count = pci_map_sg(hi->host->pdev, sgpnt, scsi_use_sg,
+ dma_dir);
+
+ SBP2_DMA_ALLOC("scatter list");
+
+ command->dma_size = scsi_use_sg;
+ command->sge_buffer = sgpnt;
+
+ /* use page tables (s/g) */
+ orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
+ orb->data_descriptor_lo = command->sge_dma;
+
+ /*
+ * Loop through and fill out our sbp-2 page tables
+ * (and split up anything too large)
+ */
+ for (i = 0, sg_count = 0 ; i < count; i++, sgpnt++) {
+ sg_len = sg_dma_len(sgpnt);
+ sg_addr = sg_dma_address(sgpnt);
+ while (sg_len) {
+ sg_element[sg_count].segment_base_lo = sg_addr;
+ if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) {
+ sg_element[sg_count].length_segment_base_hi =
+ PAGE_TABLE_SET_SEGMENT_LENGTH(SBP2_MAX_SG_ELEMENT_LENGTH);
+ sg_addr += SBP2_MAX_SG_ELEMENT_LENGTH;
+ sg_len -= SBP2_MAX_SG_ELEMENT_LENGTH;
+ } else {
+ sg_element[sg_count].length_segment_base_hi =
+ PAGE_TABLE_SET_SEGMENT_LENGTH(sg_len);
+ sg_len = 0;
+ }
+ sg_count++;
+ }
+ }
+
+ /* Number of page table (s/g) elements */
+ orb->misc |= ORB_SET_DATA_SIZE(sg_count);
+
+ sbp2util_packet_dump(sg_element,
+ (sizeof(struct sbp2_unrestricted_page_table)) * sg_count,
+ "sbp2 s/g list", command->sge_dma);
+
+ /* Byte swap page tables if necessary */
+ sbp2util_cpu_to_be32_buffer(sg_element,
+ (sizeof(struct sbp2_unrestricted_page_table)) *
+ sg_count);
+ }
+}
+
+static void sbp2_prep_command_orb_no_sg(struct sbp2_command_orb *orb,
+ struct sbp2scsi_host_info *hi,
+ struct sbp2_command_info *command,
+ struct scatterlist *sgpnt,
+ u32 orb_direction,
+ unsigned int scsi_request_bufflen,
+ void *scsi_request_buffer,
+ enum dma_data_direction dma_dir)
+{
+ command->dma_dir = dma_dir;
+ command->dma_size = scsi_request_bufflen;
+ command->dma_type = CMD_DMA_SINGLE;
+ command->cmd_dma = pci_map_single(hi->host->pdev, scsi_request_buffer,
+ command->dma_size, command->dma_dir);
+ orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
+ orb->misc |= ORB_SET_DIRECTION(orb_direction);
+
+ SBP2_DMA_ALLOC("single bulk");
+
+ /*
+ * Handle case where we get a command w/o s/g enabled (but
+ * check for transfers larger than 64K)
+ */
+ if (scsi_request_bufflen <= SBP2_MAX_SG_ELEMENT_LENGTH) {
+
+ orb->data_descriptor_lo = command->cmd_dma;
+ orb->misc |= ORB_SET_DATA_SIZE(scsi_request_bufflen);
+
+ } else {
+ struct sbp2_unrestricted_page_table *sg_element =
+ &command->scatter_gather_element[0];
+ u32 sg_count, sg_len;
+ dma_addr_t sg_addr;
+
+ /*
+ * Need to turn this into page tables, since the
+ * buffer is too large.
+ */
+ orb->data_descriptor_lo = command->sge_dma;
+
+ /* Use page tables (s/g) */
+ orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
+
+ /*
+ * fill out our sbp-2 page tables (and split up
+ * the large buffer)
+ */
+ sg_count = 0;
+ sg_len = scsi_request_bufflen;
+ sg_addr = command->cmd_dma;
+ while (sg_len) {
+ sg_element[sg_count].segment_base_lo = sg_addr;
+ if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) {
+ sg_element[sg_count].length_segment_base_hi =
+ PAGE_TABLE_SET_SEGMENT_LENGTH(SBP2_MAX_SG_ELEMENT_LENGTH);
+ sg_addr += SBP2_MAX_SG_ELEMENT_LENGTH;
+ sg_len -= SBP2_MAX_SG_ELEMENT_LENGTH;
+ } else {
+ sg_element[sg_count].length_segment_base_hi =
+ PAGE_TABLE_SET_SEGMENT_LENGTH(sg_len);
+ sg_len = 0;
+ }
+ sg_count++;
+ }
+
+ /* Number of page table (s/g) elements */
+ orb->misc |= ORB_SET_DATA_SIZE(sg_count);
+
+ sbp2util_packet_dump(sg_element,
+ (sizeof(struct sbp2_unrestricted_page_table)) * sg_count,
+ "sbp2 s/g list", command->sge_dma);
+
+ /* Byte swap page tables if necessary */
+ sbp2util_cpu_to_be32_buffer(sg_element,
+ (sizeof(struct sbp2_unrestricted_page_table)) *
+ sg_count);
+ }
}
/*
* This function is called to create the actual command orb and s/g list
* out of the scsi command itself.
*/
-static int sbp2_create_command_orb(struct scsi_id_instance_data *scsi_id,
- struct sbp2_command_info *command,
- unchar *scsi_cmd,
- unsigned int scsi_use_sg,
- unsigned int scsi_request_bufflen,
- void *scsi_request_buffer,
- enum dma_data_direction dma_dir)
-
+static void sbp2_create_command_orb(struct scsi_id_instance_data *scsi_id,
+ struct sbp2_command_info *command,
+ unchar *scsi_cmd,
+ unsigned int scsi_use_sg,
+ unsigned int scsi_request_bufflen,
+ void *scsi_request_buffer,
+ enum dma_data_direction dma_dir)
{
struct sbp2scsi_host_info *hi = scsi_id->hi;
- struct scatterlist *sgpnt = (struct scatterlist *) scsi_request_buffer;
+ struct scatterlist *sgpnt = (struct scatterlist *)scsi_request_buffer;
struct sbp2_command_orb *command_orb = &command->command_orb;
- struct sbp2_unrestricted_page_table *scatter_gather_element =
- &command->scatter_gather_element[0];
- u32 sg_count, sg_len, orb_direction;
- dma_addr_t sg_addr;
- int i;
+ u32 orb_direction;
/*
* Set-up our command ORB..
command_orb->next_ORB_lo = 0x0;
command_orb->misc = ORB_SET_MAX_PAYLOAD(scsi_id->max_payload_size);
command_orb->misc |= ORB_SET_SPEED(scsi_id->speed_code);
- command_orb->misc |= ORB_SET_NOTIFY(1); /* Notify us when complete */
+ command_orb->misc |= ORB_SET_NOTIFY(1); /* Notify us when complete */
- /*
- * Get the direction of the transfer. If the direction is unknown, then use our
- * goofy table as a back-up.
- */
- switch (dma_dir) {
- case DMA_NONE:
- orb_direction = ORB_DIRECTION_NO_DATA_TRANSFER;
- break;
- case DMA_TO_DEVICE:
- orb_direction = ORB_DIRECTION_WRITE_TO_MEDIA;
- break;
- case DMA_FROM_DEVICE:
- orb_direction = ORB_DIRECTION_READ_FROM_MEDIA;
- break;
- case DMA_BIDIRECTIONAL:
- default:
- SBP2_ERR("SCSI data transfer direction not specified. "
- "Update the SBP2 direction table in sbp2.h if "
- "necessary for your application");
- __scsi_print_command(scsi_cmd);
- orb_direction = sbp2scsi_direction_table[*scsi_cmd];
- break;
+ if (dma_dir == DMA_NONE)
+ orb_direction = ORB_DIRECTION_NO_DATA_TRANSFER;
+ else if (dma_dir == DMA_TO_DEVICE && scsi_request_bufflen)
+ orb_direction = ORB_DIRECTION_WRITE_TO_MEDIA;
+ else if (dma_dir == DMA_FROM_DEVICE && scsi_request_bufflen)
+ orb_direction = ORB_DIRECTION_READ_FROM_MEDIA;
+ else {
+ SBP2_WARN("Falling back to DMA_NONE");
+ orb_direction = ORB_DIRECTION_NO_DATA_TRANSFER;
}
- /*
- * Set-up our pagetable stuff... unfortunately, this has become
- * messier than I'd like. Need to clean this up a bit. ;-)
- */
+ /* Set-up our pagetable stuff */
if (orb_direction == ORB_DIRECTION_NO_DATA_TRANSFER) {
-
SBP2_DEBUG("No data transfer");
-
- /*
- * Handle no data transfer
- */
command_orb->data_descriptor_hi = 0x0;
command_orb->data_descriptor_lo = 0x0;
command_orb->misc |= ORB_SET_DIRECTION(1);
-
} else if (scsi_use_sg) {
-
SBP2_DEBUG("Use scatter/gather");
-
- /*
- * Special case if only one element (and less than 64KB in size)
- */
- if ((scsi_use_sg == 1) && (sgpnt[0].length <= SBP2_MAX_SG_ELEMENT_LENGTH)) {
-
- SBP2_DEBUG("Only one s/g element");
- command->dma_dir = dma_dir;
- command->dma_size = sgpnt[0].length;
- command->dma_type = CMD_DMA_PAGE;
- command->cmd_dma = pci_map_page(hi->host->pdev,
- sgpnt[0].page,
- sgpnt[0].offset,
- command->dma_size,
- command->dma_dir);
- SBP2_DMA_ALLOC("single page scatter element");
-
- command_orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
- command_orb->data_descriptor_lo = command->cmd_dma;
- command_orb->misc |= ORB_SET_DATA_SIZE(command->dma_size);
- command_orb->misc |= ORB_SET_DIRECTION(orb_direction);
-
- } else {
- int count = pci_map_sg(hi->host->pdev, sgpnt, scsi_use_sg, dma_dir);
- SBP2_DMA_ALLOC("scatter list");
-
- command->dma_size = scsi_use_sg;
- command->dma_dir = dma_dir;
- command->sge_buffer = sgpnt;
-
- /* use page tables (s/g) */
- command_orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
- command_orb->misc |= ORB_SET_DIRECTION(orb_direction);
- command_orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
- command_orb->data_descriptor_lo = command->sge_dma;
-
- /*
- * Loop through and fill out our sbp-2 page tables
- * (and split up anything too large)
- */
- for (i = 0, sg_count = 0 ; i < count; i++, sgpnt++) {
- sg_len = sg_dma_len(sgpnt);
- sg_addr = sg_dma_address(sgpnt);
- while (sg_len) {
- scatter_gather_element[sg_count].segment_base_lo = sg_addr;
- if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) {
- scatter_gather_element[sg_count].length_segment_base_hi =
- PAGE_TABLE_SET_SEGMENT_LENGTH(SBP2_MAX_SG_ELEMENT_LENGTH);
- sg_addr += SBP2_MAX_SG_ELEMENT_LENGTH;
- sg_len -= SBP2_MAX_SG_ELEMENT_LENGTH;
- } else {
- scatter_gather_element[sg_count].length_segment_base_hi =
- PAGE_TABLE_SET_SEGMENT_LENGTH(sg_len);
- sg_len = 0;
- }
- sg_count++;
- }
- }
-
- /* Number of page table (s/g) elements */
- command_orb->misc |= ORB_SET_DATA_SIZE(sg_count);
-
- sbp2util_packet_dump(scatter_gather_element,
- (sizeof(struct sbp2_unrestricted_page_table)) * sg_count,
- "sbp2 s/g list", command->sge_dma);
-
- /*
- * Byte swap page tables if necessary
- */
- sbp2util_cpu_to_be32_buffer(scatter_gather_element,
- (sizeof(struct sbp2_unrestricted_page_table)) *
- sg_count);
-
- }
-
+ sbp2_prep_command_orb_sg(command_orb, hi, command, scsi_use_sg,
+ sgpnt, orb_direction, dma_dir);
} else {
-
SBP2_DEBUG("No scatter/gather");
-
- command->dma_dir = dma_dir;
- command->dma_size = scsi_request_bufflen;
- command->dma_type = CMD_DMA_SINGLE;
- command->cmd_dma = pci_map_single (hi->host->pdev, scsi_request_buffer,
- command->dma_size,
- command->dma_dir);
- SBP2_DMA_ALLOC("single bulk");
-
- /*
- * Handle case where we get a command w/o s/g enabled (but
- * check for transfers larger than 64K)
- */
- if (scsi_request_bufflen <= SBP2_MAX_SG_ELEMENT_LENGTH) {
-
- command_orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
- command_orb->data_descriptor_lo = command->cmd_dma;
- command_orb->misc |= ORB_SET_DATA_SIZE(scsi_request_bufflen);
- command_orb->misc |= ORB_SET_DIRECTION(orb_direction);
-
- /*
- * Sanity, in case our direction table is not
- * up-to-date
- */
- if (!scsi_request_bufflen) {
- command_orb->data_descriptor_hi = 0x0;
- command_orb->data_descriptor_lo = 0x0;
- command_orb->misc |= ORB_SET_DIRECTION(1);
- }
-
- } else {
- /*
- * Need to turn this into page tables, since the
- * buffer is too large.
- */
- command_orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id);
- command_orb->data_descriptor_lo = command->sge_dma;
-
- /* Use page tables (s/g) */
- command_orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1);
- command_orb->misc |= ORB_SET_DIRECTION(orb_direction);
-
- /*
- * fill out our sbp-2 page tables (and split up
- * the large buffer)
- */
- sg_count = 0;
- sg_len = scsi_request_bufflen;
- sg_addr = command->cmd_dma;
- while (sg_len) {
- scatter_gather_element[sg_count].segment_base_lo = sg_addr;
- if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) {
- scatter_gather_element[sg_count].length_segment_base_hi =
- PAGE_TABLE_SET_SEGMENT_LENGTH(SBP2_MAX_SG_ELEMENT_LENGTH);
- sg_addr += SBP2_MAX_SG_ELEMENT_LENGTH;
- sg_len -= SBP2_MAX_SG_ELEMENT_LENGTH;
- } else {
- scatter_gather_element[sg_count].length_segment_base_hi =
- PAGE_TABLE_SET_SEGMENT_LENGTH(sg_len);
- sg_len = 0;
- }
- sg_count++;
- }
-
- /* Number of page table (s/g) elements */
- command_orb->misc |= ORB_SET_DATA_SIZE(sg_count);
-
- sbp2util_packet_dump(scatter_gather_element,
- (sizeof(struct sbp2_unrestricted_page_table)) * sg_count,
- "sbp2 s/g list", command->sge_dma);
-
- /*
- * Byte swap page tables if necessary
- */
- sbp2util_cpu_to_be32_buffer(scatter_gather_element,
- (sizeof(struct sbp2_unrestricted_page_table)) *
- sg_count);
-
- }
-
+ sbp2_prep_command_orb_no_sg(command_orb, hi, command, sgpnt,
+ orb_direction, scsi_request_bufflen,
+ scsi_request_buffer, dma_dir);
}
- /*
- * Byte swap command ORB if necessary
- */
+ /* Byte swap command ORB if necessary */
sbp2util_cpu_to_be32_buffer(command_orb, sizeof(struct sbp2_command_orb));
- /*
- * Put our scsi command in the command ORB
- */
+ /* Put our scsi command in the command ORB */
memset(command_orb->cdb, 0, 12);
memcpy(command_orb->cdb, scsi_cmd, COMMAND_SIZE(*scsi_cmd));
-
- return(0);
}
/*
outstanding_orb_incr;
SBP2_ORB_DEBUG("sending command orb %p, total orbs = %x",
- command_orb, global_outstanding_command_orbs);
+ command_orb, global_outstanding_command_orbs);
pci_dma_sync_single_for_device(hi->host->pdev, command->command_orb_dma,
sizeof(struct sbp2_command_orb),
* both by the sbp2 device and us.
*/
scsi_id->last_orb->next_ORB_lo =
- cpu_to_be32(command->command_orb_dma);
+ cpu_to_be32(command->command_orb_dma);
/* Tells hardware that this pointer is valid */
scsi_id->last_orb->next_ORB_hi = 0x0;
- pci_dma_sync_single_for_device(hi->host->pdev, scsi_id->last_orb_dma,
+ pci_dma_sync_single_for_device(hi->host->pdev,
+ scsi_id->last_orb_dma,
sizeof(struct sbp2_command_orb),
PCI_DMA_BIDIRECTIONAL);
if (sbp2util_node_write_no_wait(ne, addr, &data, 4) < 0) {
SBP2_ERR("sbp2util_node_write_no_wait failed");
- return(-EIO);
+ return -EIO;
}
scsi_id->last_orb = command_orb;
scsi_id->last_orb_dma = command->command_orb_dma;
}
- return(0);
+ return 0;
}
/*
*/
command = sbp2util_allocate_command_orb(scsi_id, SCpnt, done);
if (!command) {
- return(-EIO);
+ return -EIO;
}
/*
sbp2_create_command_orb(scsi_id, command, cmd, SCpnt->use_sg,
request_bufflen, SCpnt->request_buffer,
SCpnt->sc_data_direction);
- /*
- * Update our cdb if necessary (to handle sbp2 RBC command set
- * differences). This is where the command set hacks go! =)
- */
- sbp2_check_sbp2_command(scsi_id, command->command_orb.cdb);
sbp2util_packet_dump(&command->command_orb, sizeof(struct sbp2_command_orb),
"sbp2 command orb", command->command_orb_dma);
*/
sbp2_link_orb_command(scsi_id, command);
- return(0);
-}
-
-
-/*
- * This function deals with command set differences between Linux scsi
- * command set and sbp2 RBC command set.
- */
-static void sbp2_check_sbp2_command(struct scsi_id_instance_data *scsi_id, unchar *cmd)
-{
- unchar new_cmd[16];
- u8 device_type = SBP2_DEVICE_TYPE (scsi_id->sbp2_device_type_and_lun);
-
- SBP2_DEBUG("sbp2_check_sbp2_command");
-
- switch (*cmd) {
-
- case READ_6:
-
- if (sbp2_command_conversion_device_type(device_type)) {
-
- SBP2_DEBUG("Convert READ_6 to READ_10");
-
- /*
- * Need to turn read_6 into read_10
- */
- new_cmd[0] = 0x28;
- new_cmd[1] = (cmd[1] & 0xe0);
- new_cmd[2] = 0x0;
- new_cmd[3] = (cmd[1] & 0x1f);
- new_cmd[4] = cmd[2];
- new_cmd[5] = cmd[3];
- new_cmd[6] = 0x0;
- new_cmd[7] = 0x0;
- new_cmd[8] = cmd[4];
- new_cmd[9] = cmd[5];
-
- memcpy(cmd, new_cmd, 10);
-
- }
-
- break;
-
- case WRITE_6:
-
- if (sbp2_command_conversion_device_type(device_type)) {
-
- SBP2_DEBUG("Convert WRITE_6 to WRITE_10");
-
- /*
- * Need to turn write_6 into write_10
- */
- new_cmd[0] = 0x2a;
- new_cmd[1] = (cmd[1] & 0xe0);
- new_cmd[2] = 0x0;
- new_cmd[3] = (cmd[1] & 0x1f);
- new_cmd[4] = cmd[2];
- new_cmd[5] = cmd[3];
- new_cmd[6] = 0x0;
- new_cmd[7] = 0x0;
- new_cmd[8] = cmd[4];
- new_cmd[9] = cmd[5];
-
- memcpy(cmd, new_cmd, 10);
-
- }
-
- break;
-
- case MODE_SENSE:
-
- if (sbp2_command_conversion_device_type(device_type)) {
-
- SBP2_DEBUG("Convert MODE_SENSE_6 to MODE_SENSE_10");
-
- /*
- * Need to turn mode_sense_6 into mode_sense_10
- */
- new_cmd[0] = 0x5a;
- new_cmd[1] = cmd[1];
- new_cmd[2] = cmd[2];
- new_cmd[3] = 0x0;
- new_cmd[4] = 0x0;
- new_cmd[5] = 0x0;
- new_cmd[6] = 0x0;
- new_cmd[7] = 0x0;
- new_cmd[8] = cmd[4];
- new_cmd[9] = cmd[5];
-
- memcpy(cmd, new_cmd, 10);
-
- }
-
- break;
-
- case MODE_SELECT:
-
- /*
- * TODO. Probably need to change mode select to 10 byte version
- */
-
- default:
- break;
- }
-
- return;
+ return 0;
}
/*
sense_data[14] = sbp2_status[20];
sense_data[15] = sbp2_status[21];
- return(sbp2_status[8] & 0x3f); /* return scsi status */
+ return sbp2_status[8] & 0x3f; /* return scsi status */
}
/*
* This function is called after a command is completed, in order to do any necessary SBP-2
* response data translations for the SCSI stack
*/
-static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
+static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
struct scsi_cmnd *SCpnt)
{
u8 *scsi_buf = SCpnt->request_buffer;
- u8 device_type = SBP2_DEVICE_TYPE (scsi_id->sbp2_device_type_and_lun);
SBP2_DEBUG("sbp2_check_sbp2_response");
switch (SCpnt->cmnd[0]) {
- case INQUIRY:
-
- /*
- * If scsi_id->sbp2_device_type_and_lun is uninitialized, then fill
- * this information in from the inquiry response data. Lun is set to zero.
- */
- if (scsi_id->sbp2_device_type_and_lun == SBP2_DEVICE_TYPE_LUN_UNINITIALIZED) {
- SBP2_DEBUG("Creating sbp2_device_type_and_lun from scsi inquiry data");
- scsi_id->sbp2_device_type_and_lun = (scsi_buf[0] & 0x1f) << 16;
- }
-
- /*
- * Make sure data length is ok. Minimum length is 36 bytes
- */
- if (scsi_buf[4] == 0) {
- scsi_buf[4] = 36 - 5;
- }
-
- /*
- * Check for Simple Direct Access Device and change it to TYPE_DISK
- */
- if ((scsi_buf[0] & 0x1f) == TYPE_RBC) {
- SBP2_DEBUG("Changing TYPE_RBC to TYPE_DISK");
- scsi_buf[0] &= 0xe0;
- }
-
- /*
- * Fix ansi revision and response data format
- */
- scsi_buf[2] |= 2;
- scsi_buf[3] = (scsi_buf[3] & 0xf0) | 2;
-
- break;
-
- case MODE_SENSE:
-
- if (sbp2_command_conversion_device_type(device_type)) {
-
- SBP2_DEBUG("Modify mode sense response (10 byte version)");
-
- scsi_buf[0] = scsi_buf[1]; /* Mode data length */
- scsi_buf[1] = scsi_buf[2]; /* Medium type */
- scsi_buf[2] = scsi_buf[3]; /* Device specific parameter */
- scsi_buf[3] = scsi_buf[7]; /* Block descriptor length */
- memcpy(scsi_buf + 4, scsi_buf + 8, scsi_buf[0]);
- }
-
- break;
+ case INQUIRY:
+ /*
+ * Make sure data length is ok. Minimum length is 36 bytes
+ */
+ if (scsi_buf[4] == 0) {
+ scsi_buf[4] = 36 - 5;
+ }
- case MODE_SELECT:
+ /*
+ * Fix ansi revision and response data format
+ */
+ scsi_buf[2] |= 2;
+ scsi_buf[3] = (scsi_buf[3] & 0xf0) | 2;
- /*
- * TODO. Probably need to change mode select to 10 byte version
- */
+ break;
- default:
- break;
+ default:
+ break;
}
return;
}
if (!host) {
SBP2_ERR("host is NULL - this is bad!");
- return(RCODE_ADDRESS_ERROR);
+ return RCODE_ADDRESS_ERROR;
}
hi = hpsb_get_hostinfo(&sbp2_highlevel, host);
if (!hi) {
SBP2_ERR("host info is NULL - this is bad!");
- return(RCODE_ADDRESS_ERROR);
+ return RCODE_ADDRESS_ERROR;
}
/*
if (!scsi_id) {
SBP2_ERR("scsi_id is NULL - device is gone?");
- return(RCODE_ADDRESS_ERROR);
+ return RCODE_ADDRESS_ERROR;
}
/*
SBP2_ORB_DEBUG("command orb completed");
}
- return(RCODE_COMPLETE);
+ return RCODE_COMPLETE;
}
-
/**************************************
* SCSI interface related section
**************************************/
goto done;
}
+ /*
+ * Bidirectional commands are not yet implemented,
+ * and unknown transfer direction not handled.
+ */
+ if (SCpnt->sc_data_direction == DMA_BIDIRECTIONAL) {
+ SBP2_ERR("Cannot handle DMA_BIDIRECTIONAL - rejecting command");
+ result = DID_ERROR << 16;
+ goto done;
+ }
+
/*
* Try and send our SCSI command
*/
* complete the command, just let it get retried at the end of the
* bus reset.
*/
- if (!hpsb_node_entry_valid(scsi_id->ne) && (scsi_status != SBP2_SCSI_STATUS_GOOD)) {
+ if (!hpsb_node_entry_valid(scsi_id->ne)
+ && (scsi_status != SBP2_SCSI_STATUS_GOOD)) {
SBP2_ERR("Bus reset in progress - retry command later");
return;
}
-
+
/*
* Switch on scsi status
*/
switch (scsi_status) {
- case SBP2_SCSI_STATUS_GOOD:
- SCpnt->result = DID_OK;
- break;
+ case SBP2_SCSI_STATUS_GOOD:
+ SCpnt->result = DID_OK;
+ break;
- case SBP2_SCSI_STATUS_BUSY:
- SBP2_ERR("SBP2_SCSI_STATUS_BUSY");
- SCpnt->result = DID_BUS_BUSY << 16;
- break;
+ case SBP2_SCSI_STATUS_BUSY:
+ SBP2_ERR("SBP2_SCSI_STATUS_BUSY");
+ SCpnt->result = DID_BUS_BUSY << 16;
+ break;
- case SBP2_SCSI_STATUS_CHECK_CONDITION:
- SBP2_DEBUG("SBP2_SCSI_STATUS_CHECK_CONDITION");
- SCpnt->result = CHECK_CONDITION << 1;
+ case SBP2_SCSI_STATUS_CHECK_CONDITION:
+ SBP2_DEBUG("SBP2_SCSI_STATUS_CHECK_CONDITION");
+ SCpnt->result = CHECK_CONDITION << 1;
- /*
- * Debug stuff
- */
+ /*
+ * Debug stuff
+ */
#if CONFIG_IEEE1394_SBP2_DEBUG >= 1
- scsi_print_command(SCpnt);
- scsi_print_sense("bh", SCpnt);
+ scsi_print_command(SCpnt);
+ scsi_print_sense("bh", SCpnt);
#endif
- break;
+ break;
- case SBP2_SCSI_STATUS_SELECTION_TIMEOUT:
- SBP2_ERR("SBP2_SCSI_STATUS_SELECTION_TIMEOUT");
- SCpnt->result = DID_NO_CONNECT << 16;
- scsi_print_command(SCpnt);
- break;
+ case SBP2_SCSI_STATUS_SELECTION_TIMEOUT:
+ SBP2_ERR("SBP2_SCSI_STATUS_SELECTION_TIMEOUT");
+ SCpnt->result = DID_NO_CONNECT << 16;
+ scsi_print_command(SCpnt);
+ break;
- case SBP2_SCSI_STATUS_CONDITION_MET:
- case SBP2_SCSI_STATUS_RESERVATION_CONFLICT:
- case SBP2_SCSI_STATUS_COMMAND_TERMINATED:
- SBP2_ERR("Bad SCSI status = %x", scsi_status);
- SCpnt->result = DID_ERROR << 16;
- scsi_print_command(SCpnt);
- break;
+ case SBP2_SCSI_STATUS_CONDITION_MET:
+ case SBP2_SCSI_STATUS_RESERVATION_CONFLICT:
+ case SBP2_SCSI_STATUS_COMMAND_TERMINATED:
+ SBP2_ERR("Bad SCSI status = %x", scsi_status);
+ SCpnt->result = DID_ERROR << 16;
+ scsi_print_command(SCpnt);
+ break;
- default:
- SBP2_ERR("Unsupported SCSI status = %x", scsi_status);
- SCpnt->result = DID_ERROR << 16;
+ default:
+ SBP2_ERR("Unsupported SCSI status = %x", scsi_status);
+ SCpnt->result = DID_ERROR << 16;
}
/*
* If a bus reset is in progress and there was an error, complete
* the command as busy so that it will get retried.
*/
- if (!hpsb_node_entry_valid(scsi_id->ne) && (scsi_status != SBP2_SCSI_STATUS_GOOD)) {
+ if (!hpsb_node_entry_valid(scsi_id->ne)
+ && (scsi_status != SBP2_SCSI_STATUS_GOOD)) {
SBP2_ERR("Completing command with busy (bus reset)");
SCpnt->result = DID_BUS_BUSY << 16;
}
/*
* Tell scsi stack that we're done with this command
*/
- done (SCpnt);
+ done(SCpnt);
}
-
static int sbp2scsi_slave_alloc(struct scsi_device *sdev)
{
((struct scsi_id_instance_data *)sdev->host->hostdata[0])->sdev = sdev;
return 0;
}
-
static int sbp2scsi_slave_configure(struct scsi_device *sdev)
{
blk_queue_dma_alignment(sdev->request_queue, (512 - 1));
+ sdev->use_10_for_rw = 1;
+ sdev->use_10_for_ms = 1;
return 0;
}
-
static void sbp2scsi_slave_destroy(struct scsi_device *sdev)
{
((struct scsi_id_instance_data *)sdev->host->hostdata[0])->sdev = NULL;
return;
}
-
/*
* Called by scsi stack when something has really gone wrong. Usually
* called when a command has timed-out for some reason.
sbp2scsi_complete_all_commands(scsi_id, DID_BUS_BUSY);
}
- return(SUCCESS);
+ return SUCCESS;
}
/*
{
struct scsi_id_instance_data *scsi_id =
(struct scsi_id_instance_data *)SCpnt->device->host->hostdata[0];
- unsigned long flags;
SBP2_ERR("reset requested");
- spin_lock_irqsave(SCpnt->device->host->host_lock, flags);
-
if (sbp2util_node_is_available(scsi_id)) {
SBP2_ERR("Generating sbp2 fetch agent reset");
sbp2_agent_reset(scsi_id, 0);
}
- spin_unlock_irqrestore(SCpnt->device->host->host_lock, flags);
-
return SUCCESS;
}
-static const char *sbp2scsi_info (struct Scsi_Host *host)
-{
- return "SCSI emulation for IEEE-1394 SBP-2 Devices";
-}
-
-static ssize_t sbp2_sysfs_ieee1394_id_show(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t sbp2_sysfs_ieee1394_id_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
struct scsi_device *sdev;
struct scsi_id_instance_data *scsi_id;
if (!(scsi_id = (struct scsi_id_instance_data *)sdev->host->hostdata[0]))
return 0;
- if (scsi_id->sbp2_device_type_and_lun == SBP2_DEVICE_TYPE_LUN_UNINITIALIZED)
- lun = 0;
- else
- lun = ORB_SET_LUN(scsi_id->sbp2_device_type_and_lun);
+ lun = ORB_SET_LUN(scsi_id->sbp2_lun);
return sprintf(buf, "%016Lx:%d:%d\n", (unsigned long long)scsi_id->ne->guid,
scsi_id->ud->id, lun);
.module = THIS_MODULE,
.name = "SBP-2 IEEE-1394",
.proc_name = SBP2_DEVICE_NAME,
- .info = sbp2scsi_info,
.queuecommand = sbp2scsi_queuecommand,
.eh_abort_handler = sbp2scsi_abort,
.eh_device_reset_handler = sbp2scsi_reset,
- .eh_bus_reset_handler = sbp2scsi_reset,
- .eh_host_reset_handler = sbp2scsi_reset,
.slave_alloc = sbp2scsi_slave_alloc,
.slave_configure = sbp2scsi_slave_configure,
.slave_destroy = sbp2scsi_slave_destroy,
SBP2_DEBUG("sbp2_module_init");
- printk(KERN_INFO "sbp2: %s\n", version);
-
/* Module load debug option to force one command at a time (serializing I/O) */
if (serialize_io) {
SBP2_INFO("Driver forced to serialize I/O (serialize_io=1)");
/* Set max sectors (module load option). Default is 255 sectors. */
scsi_driver_template.max_sectors = max_sectors;
-
/* Register our high level driver with 1394 stack */
hpsb_register_highlevel(&sbp2_highlevel);
struct sbp2_reconnect_orb {
u32 reserved1;
u32 reserved2;
- u32 reserved3;
- u32 reserved4;
+ u32 reserved3;
+ u32 reserved4;
u32 login_ID_misc;
u32 reserved5;
u32 status_FIFO_hi;
struct sbp2_logout_orb {
u32 reserved1;
u32 reserved2;
- u32 reserved3;
- u32 reserved4;
+ u32 reserved3;
+ u32 reserved4;
u32 login_ID_misc;
u32 reserved5;
u32 status_FIFO_hi;
struct sbp2_status_block {
u32 ORB_offset_hi_misc;
u32 ORB_offset_lo;
- u8 command_set_dependent[24];
+ u8 command_set_dependent[24];
};
/*
* specified for write posting, where the ohci controller will
* automatically send an ack_complete when the status is written by the
* sbp2 device... saving a split transaction. =)
- */
+ */
#define SBP2_STATUS_FIFO_ADDRESS 0xfffe00000000ULL
#define SBP2_STATUS_FIFO_ADDRESS_HI 0xfffe
#define SBP2_STATUS_FIFO_ADDRESS_LO 0x0
#define SBP2_DEVICE_TYPE_AND_LUN_KEY 0x14
#define SBP2_FIRMWARE_REVISION_KEY 0x3c
-#define SBP2_DEVICE_TYPE(q) (((q) >> 16) & 0x1f)
-#define SBP2_DEVICE_LUN(q) ((q) & 0xffff)
-
#define SBP2_AGENT_STATE_OFFSET 0x00ULL
#define SBP2_AGENT_RESET_OFFSET 0x04ULL
#define SBP2_ORB_POINTER_OFFSET 0x08ULL
*/
#define SBP2_128KB_BROKEN_FIRMWARE 0xa0b800
-#define SBP2_DEVICE_TYPE_LUN_UNINITIALIZED 0xffffffff
-
/*
* SCSI specific stuff
*/
#define SBP2_MAX_SG_ELEMENT_LENGTH 0xf000
#define SBP2_MAX_UDS_PER_NODE 16 /* Maximum scsi devices per node */
#define SBP2_MAX_SECTORS 255 /* Max sectors supported */
-
-/*
- * SCSI direction table...
- * (now used as a back-up in case the direction passed down from above is "unknown")
- *
- * DIN = IN data direction
- * DOU = OUT data direction
- * DNO = No data transfer
- * DUN = Unknown data direction
- *
- * Opcode 0xec (Teac specific "opc execute") possibly should be DNO,
- * but we'll change it when somebody reports a problem with this.
- */
-#define DIN ORB_DIRECTION_READ_FROM_MEDIA
-#define DOU ORB_DIRECTION_WRITE_TO_MEDIA
-#define DNO ORB_DIRECTION_NO_DATA_TRANSFER
-#define DUN DIN
-
-static unchar sbp2scsi_direction_table[0x100] = {
- DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
- DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
- DIN,DUN,DIN,DIN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
- DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
- DOU,DOU,DIN,DIN,DIN,DNO,DIN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DNO,DUN,
- DUN,DIN,DIN,DNO,DNO,DOU,DUN,DUN,DNO,DIN,DIN,DNO,DIN,DOU,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DNO,DOU,DOU,DIN,DNO,DNO,DNO,DIN,DNO,DOU,DUN,DNO,DIN,DOU,DOU,
- DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DIN,DNO,DNO,DNO,DIN,DIN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
- DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
-};
-
-/* This should be safe */
-#define SBP2_MAX_CMDS 8
+#define SBP2_MAX_CMDS 8 /* This should be safe */
/* This is the two dma types we use for cmd_dma below */
enum cmd_dma_types {
#define SBP2_BREAKAGE_128K_MAX_TRANSFER 0x1
#define SBP2_BREAKAGE_INQUIRY_HACK 0x2
-
struct sbp2scsi_host_info;
-
/*
* Information needed on a per scsi id basis (one for each sbp2 device)
*/
u32 sbp2_command_set_spec_id;
u32 sbp2_command_set;
u32 sbp2_unit_characteristics;
- u32 sbp2_device_type_and_lun;
+ u32 sbp2_lun;
u32 sbp2_firmware_revision;
/*
u32 workarounds;
};
-
/* Sbp2 host data structure (one per IEEE1394 host) */
struct sbp2scsi_host_info {
struct hpsb_host *host; /* IEEE1394 host */
static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int destid,
quadlet_t *data, u64 addr, size_t length, u16 flags);
static int sbp2_agent_reset(struct scsi_id_instance_data *scsi_id, int wait);
-static int sbp2_create_command_orb(struct scsi_id_instance_data *scsi_id,
- struct sbp2_command_info *command,
- unchar *scsi_cmd,
- unsigned int scsi_use_sg,
- unsigned int scsi_request_bufflen,
- void *scsi_request_buffer,
- enum dma_data_direction dma_dir);
static int sbp2_link_orb_command(struct scsi_id_instance_data *scsi_id,
struct sbp2_command_info *command);
static int sbp2_send_command(struct scsi_id_instance_data *scsi_id,
struct scsi_cmnd *SCpnt,
void (*done)(struct scsi_cmnd *));
static unsigned int sbp2_status_to_sense_data(unchar *sbp2_status, unchar *sense_data);
-static void sbp2_check_sbp2_command(struct scsi_id_instance_data *scsi_id, unchar *cmd);
static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
struct scsi_cmnd *SCpnt);
static void sbp2_parse_unit_directory(struct scsi_id_instance_data *scsi_id,
*
* NOTES:
*
- * jds -- add private data to file to keep track of iso contexts associated
- * with each open -- so release won't kill all iso transfers.
- *
- * Damien Douxchamps: Fix failure when the number of DMA pages per frame is
- * one.
- *
* ioctl return codes:
* EFAULT is only for invalid address for the argp
* EINVAL for out of range values
* ENOTTY for unsupported ioctl request
*
*/
-
-/* Markus Tavenrath <speedygoo@speedygoo.de> :
- - fixed checks for valid buffer-numbers in video1394_icotl
- - changed the ways the dma prg's are used, now it's possible to use
- even a single dma buffer
-*/
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/list.h>
#define ISO_CHANNELS 64
-#ifndef virt_to_page
-#define virt_to_page(x) MAP_NR(x)
-#endif
-
-#ifndef vmalloc_32
-#define vmalloc_32(x) vmalloc(x)
-#endif
-
struct it_dma_prg {
struct dma_cmd begin;
quadlet_t data[4];
struct dma_iso_ctx *d;
int i;
- d = kmalloc(sizeof(struct dma_iso_ctx), GFP_KERNEL);
- if (d == NULL) {
+ d = kzalloc(sizeof(*d), GFP_KERNEL);
+ if (!d) {
PRINT(KERN_ERR, ohci->host->id, "Failed to allocate dma_iso_ctx");
return NULL;
}
- memset(d, 0, sizeof *d);
-
d->ohci = ohci;
d->type = type;
d->channel = channel;
}
d->ctx = d->iso_tasklet.context;
- d->prg_reg = kmalloc(d->num_desc * sizeof(struct dma_prog_region),
- GFP_KERNEL);
- if (d->prg_reg == NULL) {
+ d->prg_reg = kmalloc(d->num_desc * sizeof(*d->prg_reg), GFP_KERNEL);
+ if (!d->prg_reg) {
PRINT(KERN_ERR, ohci->host->id, "Failed to allocate ir prg regs");
free_dma_iso_ctx(d);
return NULL;
d->cmdPtr = OHCI1394_IsoRcvCommandPtr+32*d->ctx;
d->ctxMatch = OHCI1394_IsoRcvContextMatch+32*d->ctx;
- d->ir_prg = kmalloc(d->num_desc * sizeof(struct dma_cmd *),
+ d->ir_prg = kzalloc(d->num_desc * sizeof(*d->ir_prg),
GFP_KERNEL);
- if (d->ir_prg == NULL) {
+ if (!d->ir_prg) {
PRINT(KERN_ERR, ohci->host->id, "Failed to allocate dma ir prg");
free_dma_iso_ctx(d);
return NULL;
}
- memset(d->ir_prg, 0, d->num_desc * sizeof(struct dma_cmd *));
d->nb_cmd = d->buf_size / PAGE_SIZE + 1;
d->left_size = (d->frame_size % PAGE_SIZE) ?
d->ctrlClear = OHCI1394_IsoXmitContextControlClear+16*d->ctx;
d->cmdPtr = OHCI1394_IsoXmitCommandPtr+16*d->ctx;
- d->it_prg = kmalloc(d->num_desc * sizeof(struct it_dma_prg *),
+ d->it_prg = kzalloc(d->num_desc * sizeof(*d->it_prg),
GFP_KERNEL);
- if (d->it_prg == NULL) {
+ if (!d->it_prg) {
PRINT(KERN_ERR, ohci->host->id,
"Failed to allocate dma it prg");
free_dma_iso_ctx(d);
return NULL;
}
- memset(d->it_prg, 0, d->num_desc*sizeof(struct it_dma_prg *));
d->packet_size = packet_size;
}
}
- d->buffer_status = kmalloc(d->num_desc * sizeof(unsigned int),
- GFP_KERNEL);
- d->buffer_prg_assignment = kmalloc(d->num_desc * sizeof(unsigned int),
- GFP_KERNEL);
- d->buffer_time = kmalloc(d->num_desc * sizeof(struct timeval),
- GFP_KERNEL);
- d->last_used_cmd = kmalloc(d->num_desc * sizeof(unsigned int),
- GFP_KERNEL);
- d->next_buffer = kmalloc(d->num_desc * sizeof(int),
- GFP_KERNEL);
-
- if (d->buffer_status == NULL) {
- PRINT(KERN_ERR, ohci->host->id, "Failed to allocate buffer_status");
- free_dma_iso_ctx(d);
- return NULL;
- }
- if (d->buffer_prg_assignment == NULL) {
- PRINT(KERN_ERR, ohci->host->id, "Failed to allocate buffer_prg_assignment");
- free_dma_iso_ctx(d);
- return NULL;
- }
- if (d->buffer_time == NULL) {
- PRINT(KERN_ERR, ohci->host->id, "Failed to allocate buffer_time");
- free_dma_iso_ctx(d);
- return NULL;
- }
- if (d->last_used_cmd == NULL) {
- PRINT(KERN_ERR, ohci->host->id, "Failed to allocate last_used_cmd");
- free_dma_iso_ctx(d);
- return NULL;
- }
- if (d->next_buffer == NULL) {
- PRINT(KERN_ERR, ohci->host->id, "Failed to allocate next_buffer");
+ d->buffer_status =
+ kzalloc(d->num_desc * sizeof(*d->buffer_status), GFP_KERNEL);
+ d->buffer_prg_assignment =
+ kzalloc(d->num_desc * sizeof(*d->buffer_prg_assignment), GFP_KERNEL);
+ d->buffer_time =
+ kzalloc(d->num_desc * sizeof(*d->buffer_time), GFP_KERNEL);
+ d->last_used_cmd =
+ kzalloc(d->num_desc * sizeof(*d->last_used_cmd), GFP_KERNEL);
+ d->next_buffer =
+ kzalloc(d->num_desc * sizeof(*d->next_buffer), GFP_KERNEL);
+
+ if (!d->buffer_status || !d->buffer_prg_assignment || !d->buffer_time ||
+ !d->last_used_cmd || !d->next_buffer) {
+ PRINT(KERN_ERR, ohci->host->id,
+ "Failed to allocate dma_iso_ctx member");
free_dma_iso_ctx(d);
return NULL;
}
- memset(d->buffer_status, 0, d->num_desc * sizeof(unsigned int));
- memset(d->buffer_prg_assignment, 0, d->num_desc * sizeof(unsigned int));
- memset(d->buffer_time, 0, d->num_desc * sizeof(struct timeval));
- memset(d->last_used_cmd, 0, d->num_desc * sizeof(unsigned int));
- memset(d->next_buffer, -1, d->num_desc * sizeof(int));
spin_lock_init(&d->lock);
if (d->ir_prg[i][d->nb_cmd-1].status & cpu_to_le32(0xFFFF0000)) {
reset_ir_status(d, i);
d->buffer_status[d->buffer_prg_assignment[i]] = VIDEO1394_BUFFER_READY;
- do_gettimeofday(&d->buffer_time[i]);
+ do_gettimeofday(&d->buffer_time[d->buffer_prg_assignment[i]]);
}
}
/* set time of buffer */
v.filltime = d->buffer_time[v.buffer];
-// printk("Buffer %d time %d\n", v.buffer, (d->buffer_time[v.buffer]).tv_usec);
/*
* Look ahead to see how many more buffers have been received
}
if (d->flags & VIDEO1394_VARIABLE_PACKET_SIZE) {
- int buf_size = d->nb_cmd * sizeof(unsigned int);
+ int buf_size = d->nb_cmd * sizeof(*psizes);
struct video1394_queue_variable __user *p = argp;
unsigned int __user *qv;
spin_lock_irqsave(&d->lock,flags);
- // last_buffer is last_prg
+ /* last_buffer is last_prg */
next_prg = (d->last_buffer + 1) % d->num_desc;
if (d->buffer_status[v.buffer]!=VIDEO1394_BUFFER_FREE) {
PRINT(KERN_ERR, ohci->host->id,
if (ohci == NULL)
return -EIO;
- ctx = kmalloc(sizeof(struct file_ctx), GFP_KERNEL);
- if (ctx == NULL) {
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx) {
PRINT(KERN_ERR, ohci->host->id, "Cannot malloc file_ctx");
return -ENOMEM;
}
- memset(ctx, 0, sizeof(struct file_ctx));
ctx->ohci = ohci;
INIT_LIST_HEAD(&ctx->context_list);
ctx->current_ctx = NULL;
projects / linux-2.6-omap-h63xx.git / commitdiff