1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2005 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/ctype.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
26 #include <scsi/scsi.h>
27 #include <scsi/scsi_device.h>
28 #include <scsi/scsi_host.h>
29 #include <scsi/scsi_tcq.h>
30 #include <scsi/scsi_transport_fc.h>
34 #include "lpfc_disc.h"
35 #include "lpfc_scsi.h"
37 #include "lpfc_logmsg.h"
38 #include "lpfc_version.h"
39 #include "lpfc_compat.h"
40 #include "lpfc_crtn.h"
44 lpfc_jedec_to_ascii(int incr, char hdw[])
47 for (i = 0; i < 8; i++) {
50 hdw[7 - i] = 0x30 + j;
52 hdw[7 - i] = 0x61 + j - 10;
60 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
62 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
66 management_version_show(struct class_device *cdev, char *buf)
68 return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
72 lpfc_info_show(struct class_device *cdev, char *buf)
74 struct Scsi_Host *host = class_to_shost(cdev);
75 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
79 lpfc_serialnum_show(struct class_device *cdev, char *buf)
81 struct Scsi_Host *host = class_to_shost(cdev);
82 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
83 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
87 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
89 struct Scsi_Host *host = class_to_shost(cdev);
90 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
91 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
95 lpfc_modelname_show(struct class_device *cdev, char *buf)
97 struct Scsi_Host *host = class_to_shost(cdev);
98 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
99 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
103 lpfc_programtype_show(struct class_device *cdev, char *buf)
105 struct Scsi_Host *host = class_to_shost(cdev);
106 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
107 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
111 lpfc_portnum_show(struct class_device *cdev, char *buf)
113 struct Scsi_Host *host = class_to_shost(cdev);
114 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
115 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
119 lpfc_fwrev_show(struct class_device *cdev, char *buf)
121 struct Scsi_Host *host = class_to_shost(cdev);
122 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
124 lpfc_decode_firmware_rev(phba, fwrev, 1);
125 return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
129 lpfc_hdw_show(struct class_device *cdev, char *buf)
132 struct Scsi_Host *host = class_to_shost(cdev);
133 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
134 lpfc_vpd_t *vp = &phba->vpd;
135 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
136 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
139 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
141 struct Scsi_Host *host = class_to_shost(cdev);
142 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
143 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
146 lpfc_state_show(struct class_device *cdev, char *buf)
148 struct Scsi_Host *host = class_to_shost(cdev);
149 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
151 switch (phba->hba_state) {
152 case LPFC_INIT_START:
153 case LPFC_INIT_MBX_CMDS:
155 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
158 case LPFC_LOCAL_CFG_LINK:
159 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
162 case LPFC_FABRIC_CFG_LINK:
165 case LPFC_BUILD_DISC_LIST:
168 len += snprintf(buf + len, PAGE_SIZE-len,
169 "Link Up - Discovery\n");
172 len += snprintf(buf + len, PAGE_SIZE-len,
173 "Link Up - Ready:\n");
174 if (phba->fc_topology == TOPOLOGY_LOOP) {
175 if (phba->fc_flag & FC_PUBLIC_LOOP)
176 len += snprintf(buf + len, PAGE_SIZE-len,
179 len += snprintf(buf + len, PAGE_SIZE-len,
182 if (phba->fc_flag & FC_FABRIC)
183 len += snprintf(buf + len, PAGE_SIZE-len,
186 len += snprintf(buf + len, PAGE_SIZE-len,
194 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
196 struct Scsi_Host *host = class_to_shost(cdev);
197 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
198 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
204 lpfc_issue_lip(struct Scsi_Host *host)
206 struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata[0];
207 LPFC_MBOXQ_t *pmboxq;
208 int mbxstatus = MBXERR_ERROR;
210 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
211 (phba->hba_state != LPFC_HBA_READY))
214 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
219 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
220 lpfc_init_link(phba, pmboxq, phba->cfg_topology, phba->cfg_link_speed);
221 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
223 if (mbxstatus == MBX_TIMEOUT)
224 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
226 mempool_free(pmboxq, phba->mbox_mem_pool);
228 if (mbxstatus == MBXERR_ERROR)
235 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
237 struct Scsi_Host *host = class_to_shost(cdev);
238 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
239 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
243 lpfc_board_online_show(struct class_device *cdev, char *buf)
245 struct Scsi_Host *host = class_to_shost(cdev);
246 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
250 if (phba->fc_flag & FC_OFFLINE_MODE)
251 return snprintf(buf, PAGE_SIZE, "0\n");
253 return snprintf(buf, PAGE_SIZE, "1\n");
257 lpfc_board_online_store(struct class_device *cdev, const char *buf,
260 struct Scsi_Host *host = class_to_shost(cdev);
261 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
262 struct completion online_compl;
265 if (sscanf(buf, "%d", &val) != 1)
268 init_completion(&online_compl);
271 lpfc_workq_post_event(phba, &status, &online_compl,
274 lpfc_workq_post_event(phba, &status, &online_compl,
276 wait_for_completion(&online_compl);
284 #define lpfc_param_show(attr) \
286 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
288 struct Scsi_Host *host = class_to_shost(cdev);\
289 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
292 val = phba->cfg_##attr;\
293 return snprintf(buf, PAGE_SIZE, "%d\n",\
299 #define lpfc_param_store(attr, minval, maxval) \
301 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
303 struct Scsi_Host *host = class_to_shost(cdev);\
304 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
306 if (!isdigit(buf[0]))\
308 if (sscanf(buf, "0x%x", &val) != 1)\
309 if (sscanf(buf, "%d", &val) != 1)\
312 if (val >= minval && val <= maxval) {\
313 phba->cfg_##attr = val;\
320 #define LPFC_ATTR_R_NOINIT(name, desc) \
321 extern int lpfc_##name;\
322 module_param(lpfc_##name, int, 0);\
323 MODULE_PARM_DESC(lpfc_##name, desc);\
324 lpfc_param_show(name)\
325 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
327 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
328 static int lpfc_##name = defval;\
329 module_param(lpfc_##name, int, 0);\
330 MODULE_PARM_DESC(lpfc_##name, desc);\
331 lpfc_param_show(name)\
332 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
334 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
335 static int lpfc_##name = defval;\
336 module_param(lpfc_##name, int, 0);\
337 MODULE_PARM_DESC(lpfc_##name, desc);\
338 lpfc_param_show(name)\
339 lpfc_param_store(name, minval, maxval)\
340 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
341 lpfc_##name##_show, lpfc_##name##_store)
343 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
344 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
345 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
346 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
347 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
348 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
349 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
350 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
351 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
352 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
353 lpfc_option_rom_version_show, NULL);
354 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
355 lpfc_num_discovered_ports_show, NULL);
356 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
357 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
359 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
361 static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
362 lpfc_board_online_show, lpfc_board_online_store);
366 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
367 # deluged with LOTS of information.
368 # You can set a bit mask to record specific types of verbose messages:
370 # LOG_ELS 0x1 ELS events
371 # LOG_DISCOVERY 0x2 Link discovery events
372 # LOG_MBOX 0x4 Mailbox events
373 # LOG_INIT 0x8 Initialization events
374 # LOG_LINK_EVENT 0x10 Link events
375 # LOG_IP 0x20 IP traffic history
376 # LOG_FCP 0x40 FCP traffic history
377 # LOG_NODE 0x80 Node table events
378 # LOG_MISC 0x400 Miscellaneous events
379 # LOG_SLI 0x800 SLI events
380 # LOG_CHK_COND 0x1000 FCP Check condition flag
381 # LOG_LIBDFC 0x2000 LIBDFC events
382 # LOG_ALL_MSG 0xffff LOG all messages
384 LPFC_ATTR_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
387 # lun_queue_depth: This parameter is used to limit the number of outstanding
388 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
390 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
391 "Max number of FCP commands we can queue to a specific LUN");
394 # Some disk devices have a "select ID" or "select Target" capability.
395 # From a protocol standpoint "select ID" usually means select the
396 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
397 # annex" which contains a table that maps a "select ID" (a number
398 # between 0 and 7F) to an ALPA. By default, for compatibility with
399 # older drivers, the lpfc driver scans this table from low ALPA to high
402 # Turning on the scan-down variable (on = 1, off = 0) will
403 # cause the lpfc driver to use an inverted table, effectively
404 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
406 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
407 # and will not work across a fabric. Also this parameter will take
408 # effect only in the case when ALPA map is not available.)
410 LPFC_ATTR_R(scan_down, 1, 0, 1,
411 "Start scanning for devices from highest ALPA to lowest");
414 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
415 # until the timer expires. Value range is [0,255]. Default value is 20.
416 # NOTE: this MUST be less then the SCSI Layer command timeout - 1.
418 LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
419 "Seconds driver will hold I/O waiting for a device to come back");
422 # lpfc_topology: link topology for init link
423 # 0x0 = attempt loop mode then point-to-point
424 # 0x02 = attempt point-to-point mode only
425 # 0x04 = attempt loop mode only
426 # 0x06 = attempt point-to-point mode then loop
427 # Set point-to-point mode if you want to run as an N_Port.
428 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
429 # Default value is 0.
431 LPFC_ATTR_R(topology, 0, 0, 6, "Select Fibre Channel topology");
434 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
436 # 0 = auto select (default)
440 # Value range is [0,4]. Default value is 0.
442 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
445 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
446 # Value range is [2,3]. Default value is 3.
448 LPFC_ATTR_R(fcp_class, 3, 2, 3,
449 "Select Fibre Channel class of service for FCP sequences");
452 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
453 # is [0,1]. Default value is 0.
455 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
456 "Use ADISC on rediscovery to authenticate FCP devices");
459 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
460 # range is [0,1]. Default value is 0.
462 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
465 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
466 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
467 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
468 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
469 # cr_delay is set to 0.
471 static int lpfc_cr_delay = 0;
472 module_param(lpfc_cr_delay, int , 0);
473 MODULE_PARM_DESC(lpfc_cr_delay, "A count of milliseconds after which an "
474 "interrupt response is generated");
476 static int lpfc_cr_count = 1;
477 module_param(lpfc_cr_count, int, 0);
478 MODULE_PARM_DESC(lpfc_cr_count, "A count of I/O completions after which an "
479 "interrupt response is generated");
482 # lpfc_fdmi_on: controls FDMI support.
483 # 0 = no FDMI support
484 # 1 = support FDMI without attribute of hostname
485 # 2 = support FDMI with attribute of hostname
486 # Value range [0,2]. Default value is 0.
488 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
491 # Specifies the maximum number of ELS cmds we can have outstanding (for
492 # discovery). Value range is [1,64]. Default value = 32.
494 static int lpfc_discovery_threads = 32;
495 module_param(lpfc_discovery_threads, int, 0);
496 MODULE_PARM_DESC(lpfc_discovery_threads, "Maximum number of ELS commands "
500 # lpfc_max_luns: maximum number of LUNs per target driver will support
501 # Value range is [1,32768]. Default value is 256.
502 # NOTE: The SCSI layer will scan each target for this many luns
504 LPFC_ATTR_R(max_luns, 256, 1, 32768,
505 "Maximum number of LUNs per target driver will support");
507 struct class_device_attribute *lpfc_host_attrs[] = {
508 &class_device_attr_info,
509 &class_device_attr_serialnum,
510 &class_device_attr_modeldesc,
511 &class_device_attr_modelname,
512 &class_device_attr_programtype,
513 &class_device_attr_portnum,
514 &class_device_attr_fwrev,
515 &class_device_attr_hdw,
516 &class_device_attr_option_rom_version,
517 &class_device_attr_state,
518 &class_device_attr_num_discovered_ports,
519 &class_device_attr_lpfc_drvr_version,
520 &class_device_attr_lpfc_log_verbose,
521 &class_device_attr_lpfc_lun_queue_depth,
522 &class_device_attr_lpfc_nodev_tmo,
523 &class_device_attr_lpfc_fcp_class,
524 &class_device_attr_lpfc_use_adisc,
525 &class_device_attr_lpfc_ack0,
526 &class_device_attr_lpfc_topology,
527 &class_device_attr_lpfc_scan_down,
528 &class_device_attr_lpfc_link_speed,
529 &class_device_attr_lpfc_fdmi_on,
530 &class_device_attr_lpfc_max_luns,
531 &class_device_attr_nport_evt_cnt,
532 &class_device_attr_management_version,
533 &class_device_attr_board_online,
538 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
541 struct Scsi_Host *host = class_to_shost(container_of(kobj,
542 struct class_device, kobj));
543 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
545 if ((off + count) > FF_REG_AREA_SIZE)
548 if (count == 0) return 0;
550 if (off % 4 || count % 4 || (unsigned long)buf % 4)
553 spin_lock_irq(phba->host->host_lock);
555 if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
556 spin_unlock_irq(phba->host->host_lock);
560 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
561 writel(*((uint32_t *)(buf + buf_off)),
562 phba->ctrl_regs_memmap_p + off + buf_off);
564 spin_unlock_irq(phba->host->host_lock);
570 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
574 struct Scsi_Host *host = class_to_shost(container_of(kobj,
575 struct class_device, kobj));
576 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
578 if (off > FF_REG_AREA_SIZE)
581 if ((off + count) > FF_REG_AREA_SIZE)
582 count = FF_REG_AREA_SIZE - off;
584 if (count == 0) return 0;
586 if (off % 4 || count % 4 || (unsigned long)buf % 4)
589 spin_lock_irq(phba->host->host_lock);
591 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
592 tmp_ptr = (uint32_t *)(buf + buf_off);
593 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
596 spin_unlock_irq(phba->host->host_lock);
601 static struct bin_attribute sysfs_ctlreg_attr = {
604 .mode = S_IRUSR | S_IWUSR,
605 .owner = THIS_MODULE,
608 .read = sysfs_ctlreg_read,
609 .write = sysfs_ctlreg_write,
614 sysfs_mbox_idle (struct lpfc_hba * phba)
616 phba->sysfs_mbox.state = SMBOX_IDLE;
617 phba->sysfs_mbox.offset = 0;
619 if (phba->sysfs_mbox.mbox) {
620 mempool_free(phba->sysfs_mbox.mbox,
621 phba->mbox_mem_pool);
622 phba->sysfs_mbox.mbox = NULL;
627 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
629 struct Scsi_Host * host =
630 class_to_shost(container_of(kobj, struct class_device, kobj));
631 struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata[0];
632 struct lpfcMboxq * mbox = NULL;
634 if ((count + off) > MAILBOX_CMD_SIZE)
637 if (off % 4 || count % 4 || (unsigned long)buf % 4)
644 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
650 spin_lock_irq(host->host_lock);
653 if (phba->sysfs_mbox.mbox)
654 mempool_free(mbox, phba->mbox_mem_pool);
656 phba->sysfs_mbox.mbox = mbox;
657 phba->sysfs_mbox.state = SMBOX_WRITING;
659 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
660 phba->sysfs_mbox.offset != off ||
661 phba->sysfs_mbox.mbox == NULL ) {
662 sysfs_mbox_idle(phba);
663 spin_unlock_irq(host->host_lock);
668 memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
671 phba->sysfs_mbox.offset = off + count;
673 spin_unlock_irq(host->host_lock);
679 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
681 struct Scsi_Host *host =
682 class_to_shost(container_of(kobj, struct class_device,
684 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
687 if (off > sizeof(MAILBOX_t))
690 if ((count + off) > sizeof(MAILBOX_t))
691 count = sizeof(MAILBOX_t) - off;
693 if (off % 4 || count % 4 || (unsigned long)buf % 4)
696 if (off && count == 0)
699 spin_lock_irq(phba->host->host_lock);
702 phba->sysfs_mbox.state == SMBOX_WRITING &&
703 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
705 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
710 case MBX_CONFIG_LINK:
711 case MBX_CONFIG_RING:
713 case MBX_UNREG_LOGIN:
715 case MBX_DUMP_CONTEXT:
718 case MBX_FLASH_WR_ULA:
722 if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
723 printk(KERN_WARNING "mbox_read:Command 0x%x "
724 "is illegal in on-line state\n",
725 phba->sysfs_mbox.mbox->mb.mbxCommand);
726 sysfs_mbox_idle(phba);
727 spin_unlock_irq(phba->host->host_lock);
732 case MBX_READ_CONFIG:
733 case MBX_READ_RCONFIG:
734 case MBX_READ_STATUS:
737 case MBX_READ_LNK_STAT:
738 case MBX_DUMP_MEMORY:
742 case MBX_LOAD_EXP_ROM:
744 case MBX_READ_SPARM64:
748 case MBX_REG_LOGIN64:
749 case MBX_CONFIG_PORT:
750 case MBX_RUN_BIU_DIAG:
751 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
752 phba->sysfs_mbox.mbox->mb.mbxCommand);
753 sysfs_mbox_idle(phba);
754 spin_unlock_irq(phba->host->host_lock);
757 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
758 phba->sysfs_mbox.mbox->mb.mbxCommand);
759 sysfs_mbox_idle(phba);
760 spin_unlock_irq(phba->host->host_lock);
764 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
765 (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
767 spin_unlock_irq(phba->host->host_lock);
768 rc = lpfc_sli_issue_mbox (phba,
769 phba->sysfs_mbox.mbox,
771 spin_lock_irq(phba->host->host_lock);
774 spin_unlock_irq(phba->host->host_lock);
775 rc = lpfc_sli_issue_mbox_wait (phba,
776 phba->sysfs_mbox.mbox,
778 spin_lock_irq(phba->host->host_lock);
781 if (rc != MBX_SUCCESS) {
782 sysfs_mbox_idle(phba);
783 spin_unlock_irq(host->host_lock);
786 phba->sysfs_mbox.state = SMBOX_READING;
788 else if (phba->sysfs_mbox.offset != off ||
789 phba->sysfs_mbox.state != SMBOX_READING) {
790 printk(KERN_WARNING "mbox_read: Bad State\n");
791 sysfs_mbox_idle(phba);
792 spin_unlock_irq(host->host_lock);
796 memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
798 phba->sysfs_mbox.offset = off + count;
800 if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
801 sysfs_mbox_idle(phba);
803 spin_unlock_irq(phba->host->host_lock);
808 static struct bin_attribute sysfs_mbox_attr = {
811 .mode = S_IRUSR | S_IWUSR,
812 .owner = THIS_MODULE,
814 .size = sizeof(MAILBOX_t),
815 .read = sysfs_mbox_read,
816 .write = sysfs_mbox_write,
820 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
822 struct Scsi_Host *host = phba->host;
825 error = sysfs_create_bin_file(&host->shost_classdev.kobj,
830 error = sysfs_create_bin_file(&host->shost_classdev.kobj,
833 goto out_remove_ctlreg_attr;
836 out_remove_ctlreg_attr:
837 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
843 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
845 struct Scsi_Host *host = phba->host;
847 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
848 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
853 * Dynamic FC Host Attributes Support
857 lpfc_get_host_port_id(struct Scsi_Host *shost)
859 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
860 /* note: fc_myDID already in cpu endianness */
861 fc_host_port_id(shost) = phba->fc_myDID;
865 lpfc_get_host_port_type(struct Scsi_Host *shost)
867 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
869 spin_lock_irq(shost->host_lock);
871 if (phba->hba_state == LPFC_HBA_READY) {
872 if (phba->fc_topology == TOPOLOGY_LOOP) {
873 if (phba->fc_flag & FC_PUBLIC_LOOP)
874 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
876 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
878 if (phba->fc_flag & FC_FABRIC)
879 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
881 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
884 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
886 spin_unlock_irq(shost->host_lock);
890 lpfc_get_host_port_state(struct Scsi_Host *shost)
892 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
894 spin_lock_irq(shost->host_lock);
896 if (phba->fc_flag & FC_OFFLINE_MODE)
897 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
899 switch (phba->hba_state) {
900 case LPFC_INIT_START:
901 case LPFC_INIT_MBX_CMDS:
903 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
906 case LPFC_LOCAL_CFG_LINK:
908 case LPFC_FABRIC_CFG_LINK:
911 case LPFC_BUILD_DISC_LIST:
915 /* Links up, beyond this port_type reports state */
916 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
919 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
922 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
927 spin_unlock_irq(shost->host_lock);
931 lpfc_get_host_speed(struct Scsi_Host *shost)
933 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
935 spin_lock_irq(shost->host_lock);
937 if (phba->hba_state == LPFC_HBA_READY) {
938 switch(phba->fc_linkspeed) {
940 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
943 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
946 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
949 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
954 spin_unlock_irq(shost->host_lock);
958 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
960 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
963 spin_lock_irq(shost->host_lock);
965 if ((phba->fc_flag & FC_FABRIC) ||
966 ((phba->fc_topology == TOPOLOGY_LOOP) &&
967 (phba->fc_flag & FC_PUBLIC_LOOP)))
968 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
970 /* fabric is local port if there is no F/FL_Port */
971 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
973 spin_unlock_irq(shost->host_lock);
975 fc_host_fabric_name(shost) = node_name;
979 static struct fc_host_statistics *
980 lpfc_get_stats(struct Scsi_Host *shost)
982 struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0];
983 struct lpfc_sli *psli = &phba->sli;
984 struct fc_host_statistics *hs = &phba->link_stats;
985 LPFC_MBOXQ_t *pmboxq;
989 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
992 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
995 pmb->mbxCommand = MBX_READ_STATUS;
996 pmb->mbxOwner = OWN_HOST;
997 pmboxq->context1 = NULL;
999 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1000 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1001 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1003 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1005 if (rc != MBX_SUCCESS) {
1006 if (rc == MBX_TIMEOUT)
1007 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1009 mempool_free(pmboxq, phba->mbox_mem_pool);
1013 memset(hs, 0, sizeof (struct fc_host_statistics));
1015 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1016 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1017 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1018 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1020 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1021 pmb->mbxCommand = MBX_READ_LNK_STAT;
1022 pmb->mbxOwner = OWN_HOST;
1023 pmboxq->context1 = NULL;
1025 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1026 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1027 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1029 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1031 if (rc != MBX_SUCCESS) {
1032 if (rc == MBX_TIMEOUT)
1033 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1035 mempool_free( pmboxq, phba->mbox_mem_pool);
1039 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1040 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1041 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1042 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1043 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1044 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1045 hs->error_frames = pmb->un.varRdLnk.crcCnt;
1047 if (phba->fc_topology == TOPOLOGY_LOOP) {
1048 hs->lip_count = (phba->fc_eventTag >> 1);
1052 hs->nos_count = (phba->fc_eventTag >> 1);
1055 hs->dumped_frames = -1;
1058 /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/
1065 * The LPFC driver treats linkdown handling as target loss events so there
1066 * are no sysfs handlers for link_down_tmo.
1069 lpfc_get_starget_port_id(struct scsi_target *starget)
1071 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1072 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1074 struct lpfc_nodelist *ndlp = NULL;
1076 spin_lock_irq(shost->host_lock);
1077 /* Search the mapped list for this target ID */
1078 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1079 if (starget->id == ndlp->nlp_sid) {
1080 did = ndlp->nlp_DID;
1084 spin_unlock_irq(shost->host_lock);
1086 fc_starget_port_id(starget) = did;
1090 lpfc_get_starget_node_name(struct scsi_target *starget)
1092 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1093 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1095 struct lpfc_nodelist *ndlp = NULL;
1097 spin_lock_irq(shost->host_lock);
1098 /* Search the mapped list for this target ID */
1099 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1100 if (starget->id == ndlp->nlp_sid) {
1101 node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1105 spin_unlock_irq(shost->host_lock);
1107 fc_starget_node_name(starget) = node_name;
1111 lpfc_get_starget_port_name(struct scsi_target *starget)
1113 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1114 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1116 struct lpfc_nodelist *ndlp = NULL;
1118 spin_lock_irq(shost->host_lock);
1119 /* Search the mapped list for this target ID */
1120 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1121 if (starget->id == ndlp->nlp_sid) {
1122 port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1126 spin_unlock_irq(shost->host_lock);
1128 fc_starget_port_name(starget) = port_name;
1132 lpfc_get_rport_loss_tmo(struct fc_rport *rport)
1135 * Return the driver's global value for device loss timeout plus
1136 * five seconds to allow the driver's nodev timer to run.
1138 rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1142 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1145 * The driver doesn't have a per-target timeout setting. Set
1146 * this value globally. lpfc_nodev_tmo should be greater then 0.
1149 lpfc_nodev_tmo = timeout;
1152 rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1156 #define lpfc_rport_show_function(field, format_string, sz, cast) \
1158 lpfc_show_rport_##field (struct class_device *cdev, char *buf) \
1160 struct fc_rport *rport = transport_class_to_rport(cdev); \
1161 struct lpfc_rport_data *rdata = rport->hostdata; \
1162 return snprintf(buf, sz, format_string, \
1163 (rdata->target) ? cast rdata->target->field : 0); \
1166 #define lpfc_rport_rd_attr(field, format_string, sz) \
1167 lpfc_rport_show_function(field, format_string, sz, ) \
1168 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1171 struct fc_function_template lpfc_transport_functions = {
1172 /* fixed attributes the driver supports */
1173 .show_host_node_name = 1,
1174 .show_host_port_name = 1,
1175 .show_host_supported_classes = 1,
1176 .show_host_supported_fc4s = 1,
1177 .show_host_symbolic_name = 1,
1178 .show_host_supported_speeds = 1,
1179 .show_host_maxframe_size = 1,
1181 /* dynamic attributes the driver supports */
1182 .get_host_port_id = lpfc_get_host_port_id,
1183 .show_host_port_id = 1,
1185 .get_host_port_type = lpfc_get_host_port_type,
1186 .show_host_port_type = 1,
1188 .get_host_port_state = lpfc_get_host_port_state,
1189 .show_host_port_state = 1,
1191 /* active_fc4s is shown but doesn't change (thus no get function) */
1192 .show_host_active_fc4s = 1,
1194 .get_host_speed = lpfc_get_host_speed,
1195 .show_host_speed = 1,
1197 .get_host_fabric_name = lpfc_get_host_fabric_name,
1198 .show_host_fabric_name = 1,
1201 * The LPFC driver treats linkdown handling as target loss events
1202 * so there are no sysfs handlers for link_down_tmo.
1205 .get_fc_host_stats = lpfc_get_stats,
1207 /* the LPFC driver doesn't support resetting stats yet */
1209 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1210 .show_rport_maxframe_size = 1,
1211 .show_rport_supported_classes = 1,
1213 .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
1214 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1215 .show_rport_dev_loss_tmo = 1,
1217 .get_starget_port_id = lpfc_get_starget_port_id,
1218 .show_starget_port_id = 1,
1220 .get_starget_node_name = lpfc_get_starget_node_name,
1221 .show_starget_node_name = 1,
1223 .get_starget_port_name = lpfc_get_starget_port_name,
1224 .show_starget_port_name = 1,
1226 .issue_fc_host_lip = lpfc_issue_lip,
1230 lpfc_get_cfgparam(struct lpfc_hba *phba)
1232 phba->cfg_log_verbose = lpfc_log_verbose;
1233 phba->cfg_cr_delay = lpfc_cr_delay;
1234 phba->cfg_cr_count = lpfc_cr_count;
1235 phba->cfg_lun_queue_depth = lpfc_lun_queue_depth;
1236 phba->cfg_fcp_class = lpfc_fcp_class;
1237 phba->cfg_use_adisc = lpfc_use_adisc;
1238 phba->cfg_ack0 = lpfc_ack0;
1239 phba->cfg_topology = lpfc_topology;
1240 phba->cfg_scan_down = lpfc_scan_down;
1241 phba->cfg_nodev_tmo = lpfc_nodev_tmo;
1242 phba->cfg_link_speed = lpfc_link_speed;
1243 phba->cfg_fdmi_on = lpfc_fdmi_on;
1244 phba->cfg_discovery_threads = lpfc_discovery_threads;
1245 phba->cfg_max_luns = lpfc_max_luns;
1248 * The total number of segments is the configuration value plus 2
1249 * since the IOCB need a command and response bde.
1251 phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1254 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1255 * used to create the sg_dma_buf_pool must be dynamically calculated
1257 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1258 sizeof(struct fcp_rsp) +
1259 (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1261 switch (phba->pcidev->device) {
1262 case PCI_DEVICE_ID_LP101:
1263 case PCI_DEVICE_ID_BSMB:
1264 case PCI_DEVICE_ID_ZSMB:
1265 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1267 case PCI_DEVICE_ID_RFLY:
1268 case PCI_DEVICE_ID_PFLY:
1269 case PCI_DEVICE_ID_BMID:
1270 case PCI_DEVICE_ID_ZMID:
1271 case PCI_DEVICE_ID_TFLY:
1272 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1275 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;