1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 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/delay.h>
24 #include <linux/pci.h>
25 #include <linux/interrupt.h>
26 #include <linux/aer.h>
27 #include <linux/gfp.h>
28 #include <linux/kernel.h>
30 #include <scsi/scsi.h>
31 #include <scsi/scsi_device.h>
32 #include <scsi/scsi_host.h>
33 #include <scsi/scsi_tcq.h>
34 #include <scsi/scsi_transport_fc.h>
35 #include <scsi/fc/fc_fs.h>
40 #include "lpfc_sli4.h"
42 #include "lpfc_disc.h"
43 #include "lpfc_scsi.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_version.h"
47 #include "lpfc_compat.h"
48 #include "lpfc_crtn.h"
49 #include "lpfc_vport.h"
51 #define LPFC_DEF_DEVLOSS_TMO 30
52 #define LPFC_MIN_DEVLOSS_TMO 1
53 #define LPFC_MAX_DEVLOSS_TMO 255
55 #define LPFC_MAX_LINK_SPEED 8
56 #define LPFC_LINK_SPEED_BITMAP 0x00000117
57 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8"
60 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
61 * @incr: integer to convert.
62 * @hdw: ascii string holding converted integer plus a string terminator.
65 * JEDEC Joint Electron Device Engineering Council.
66 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
67 * character string. The string is then terminated with a NULL in byte 9.
68 * Hex 0-9 becomes ascii '0' to '9'.
69 * Hex a-f becomes ascii '=' to 'B' capital B.
72 * Coded for 32 bit integers only.
75 lpfc_jedec_to_ascii(int incr, char hdw[])
78 for (i = 0; i < 8; i++) {
81 hdw[7 - i] = 0x30 + j;
83 hdw[7 - i] = 0x61 + j - 10;
91 * lpfc_drvr_version_show - Return the Emulex driver string with version number
92 * @dev: class unused variable.
93 * @attr: device attribute, not used.
94 * @buf: on return contains the module description text.
96 * Returns: size of formatted string.
99 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
102 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
106 * lpfc_enable_fip_show - Return the fip mode of the HBA
107 * @dev: class unused variable.
108 * @attr: device attribute, not used.
109 * @buf: on return contains the module description text.
111 * Returns: size of formatted string.
114 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
117 struct Scsi_Host *shost = class_to_shost(dev);
118 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
119 struct lpfc_hba *phba = vport->phba;
121 if (phba->hba_flag & HBA_FIP_SUPPORT)
122 return snprintf(buf, PAGE_SIZE, "1\n");
124 return snprintf(buf, PAGE_SIZE, "0\n");
128 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
131 struct Scsi_Host *shost = class_to_shost(dev);
132 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
133 struct lpfc_hba *phba = vport->phba;
135 if (phba->cfg_enable_bg)
136 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
137 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
139 return snprintf(buf, PAGE_SIZE,
140 "BlockGuard Not Supported\n");
142 return snprintf(buf, PAGE_SIZE,
143 "BlockGuard Disabled\n");
147 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
150 struct Scsi_Host *shost = class_to_shost(dev);
151 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
152 struct lpfc_hba *phba = vport->phba;
154 return snprintf(buf, PAGE_SIZE, "%llu\n",
155 (unsigned long long)phba->bg_guard_err_cnt);
159 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
162 struct Scsi_Host *shost = class_to_shost(dev);
163 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
164 struct lpfc_hba *phba = vport->phba;
166 return snprintf(buf, PAGE_SIZE, "%llu\n",
167 (unsigned long long)phba->bg_apptag_err_cnt);
171 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
174 struct Scsi_Host *shost = class_to_shost(dev);
175 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
176 struct lpfc_hba *phba = vport->phba;
178 return snprintf(buf, PAGE_SIZE, "%llu\n",
179 (unsigned long long)phba->bg_reftag_err_cnt);
183 * lpfc_info_show - Return some pci info about the host in ascii
184 * @dev: class converted to a Scsi_host structure.
185 * @attr: device attribute, not used.
186 * @buf: on return contains the formatted text from lpfc_info().
188 * Returns: size of formatted string.
191 lpfc_info_show(struct device *dev, struct device_attribute *attr,
194 struct Scsi_Host *host = class_to_shost(dev);
196 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
200 * lpfc_serialnum_show - Return the hba serial number in ascii
201 * @dev: class converted to a Scsi_host structure.
202 * @attr: device attribute, not used.
203 * @buf: on return contains the formatted text serial number.
205 * Returns: size of formatted string.
208 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
211 struct Scsi_Host *shost = class_to_shost(dev);
212 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
213 struct lpfc_hba *phba = vport->phba;
215 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
219 * lpfc_temp_sensor_show - Return the temperature sensor level
220 * @dev: class converted to a Scsi_host structure.
221 * @attr: device attribute, not used.
222 * @buf: on return contains the formatted support level.
225 * Returns a number indicating the temperature sensor level currently
226 * supported, zero or one in ascii.
228 * Returns: size of formatted string.
231 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
234 struct Scsi_Host *shost = class_to_shost(dev);
235 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
236 struct lpfc_hba *phba = vport->phba;
237 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
241 * lpfc_modeldesc_show - Return the model description of the hba
242 * @dev: class converted to a Scsi_host structure.
243 * @attr: device attribute, not used.
244 * @buf: on return contains the scsi vpd model description.
246 * Returns: size of formatted string.
249 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
252 struct Scsi_Host *shost = class_to_shost(dev);
253 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
254 struct lpfc_hba *phba = vport->phba;
256 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
260 * lpfc_modelname_show - Return the model name of the hba
261 * @dev: class converted to a Scsi_host structure.
262 * @attr: device attribute, not used.
263 * @buf: on return contains the scsi vpd model name.
265 * Returns: size of formatted string.
268 lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
271 struct Scsi_Host *shost = class_to_shost(dev);
272 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
273 struct lpfc_hba *phba = vport->phba;
275 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
279 * lpfc_programtype_show - Return the program type of the hba
280 * @dev: class converted to a Scsi_host structure.
281 * @attr: device attribute, not used.
282 * @buf: on return contains the scsi vpd program type.
284 * Returns: size of formatted string.
287 lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
290 struct Scsi_Host *shost = class_to_shost(dev);
291 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
292 struct lpfc_hba *phba = vport->phba;
294 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
298 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
299 * @dev: class converted to a Scsi_host structure.
300 * @attr: device attribute, not used.
301 * @buf: on return contains the Menlo Maintenance sli flag.
303 * Returns: size of formatted string.
306 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
308 struct Scsi_Host *shost = class_to_shost(dev);
309 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
310 struct lpfc_hba *phba = vport->phba;
312 return snprintf(buf, PAGE_SIZE, "%d\n",
313 (phba->sli.sli_flag & LPFC_MENLO_MAINT));
317 * lpfc_vportnum_show - Return the port number in ascii of the hba
318 * @dev: class converted to a Scsi_host structure.
319 * @attr: device attribute, not used.
320 * @buf: on return contains scsi vpd program type.
322 * Returns: size of formatted string.
325 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
328 struct Scsi_Host *shost = class_to_shost(dev);
329 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
330 struct lpfc_hba *phba = vport->phba;
332 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
336 * lpfc_fwrev_show - Return the firmware rev running in the hba
337 * @dev: class converted to a Scsi_host structure.
338 * @attr: device attribute, not used.
339 * @buf: on return contains the scsi vpd program type.
341 * Returns: size of formatted string.
344 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
347 struct Scsi_Host *shost = class_to_shost(dev);
348 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
349 struct lpfc_hba *phba = vport->phba;
352 lpfc_decode_firmware_rev(phba, fwrev, 1);
353 return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
357 * lpfc_hdw_show - Return the jedec information about the hba
358 * @dev: class converted to a Scsi_host structure.
359 * @attr: device attribute, not used.
360 * @buf: on return contains the scsi vpd program type.
362 * Returns: size of formatted string.
365 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
368 struct Scsi_Host *shost = class_to_shost(dev);
369 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
370 struct lpfc_hba *phba = vport->phba;
371 lpfc_vpd_t *vp = &phba->vpd;
373 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
374 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
378 * lpfc_option_rom_version_show - Return the adapter ROM FCode version
379 * @dev: class converted to a Scsi_host structure.
380 * @attr: device attribute, not used.
381 * @buf: on return contains the ROM and FCode ascii strings.
383 * Returns: size of formatted string.
386 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
389 struct Scsi_Host *shost = class_to_shost(dev);
390 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
391 struct lpfc_hba *phba = vport->phba;
393 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
397 * lpfc_state_show - Return the link state of the port
398 * @dev: class converted to a Scsi_host structure.
399 * @attr: device attribute, not used.
400 * @buf: on return contains text describing the state of the link.
403 * The switch statement has no default so zero will be returned.
405 * Returns: size of formatted string.
408 lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
411 struct Scsi_Host *shost = class_to_shost(dev);
412 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
413 struct lpfc_hba *phba = vport->phba;
416 switch (phba->link_state) {
417 case LPFC_LINK_UNKNOWN:
418 case LPFC_WARM_START:
419 case LPFC_INIT_START:
420 case LPFC_INIT_MBX_CMDS:
423 if (phba->hba_flag & LINK_DISABLED)
424 len += snprintf(buf + len, PAGE_SIZE-len,
425 "Link Down - User disabled\n");
427 len += snprintf(buf + len, PAGE_SIZE-len,
433 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
435 switch (vport->port_state) {
436 case LPFC_LOCAL_CFG_LINK:
437 len += snprintf(buf + len, PAGE_SIZE-len,
438 "Configuring Link\n");
442 case LPFC_FABRIC_CFG_LINK:
445 case LPFC_BUILD_DISC_LIST:
447 len += snprintf(buf + len, PAGE_SIZE - len,
450 case LPFC_VPORT_READY:
451 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
454 case LPFC_VPORT_FAILED:
455 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
458 case LPFC_VPORT_UNKNOWN:
459 len += snprintf(buf + len, PAGE_SIZE - len,
463 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
464 len += snprintf(buf + len, PAGE_SIZE-len,
465 " Menlo Maint Mode\n");
466 else if (phba->fc_topology == TOPOLOGY_LOOP) {
467 if (vport->fc_flag & FC_PUBLIC_LOOP)
468 len += snprintf(buf + len, PAGE_SIZE-len,
471 len += snprintf(buf + len, PAGE_SIZE-len,
474 if (vport->fc_flag & FC_FABRIC)
475 len += snprintf(buf + len, PAGE_SIZE-len,
478 len += snprintf(buf + len, PAGE_SIZE-len,
487 * lpfc_link_state_store - Transition the link_state on an HBA port
488 * @dev: class device that is converted into a Scsi_host.
489 * @attr: device attribute, not used.
490 * @buf: one or more lpfc_polling_flags values.
494 * -EINVAL if the buffer is not "up" or "down"
495 * return from link state change function if non-zero
496 * length of the buf on success
499 lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
500 const char *buf, size_t count)
502 struct Scsi_Host *shost = class_to_shost(dev);
503 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
504 struct lpfc_hba *phba = vport->phba;
506 int status = -EINVAL;
508 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
509 (phba->link_state == LPFC_LINK_DOWN))
510 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
511 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
512 (phba->link_state >= LPFC_LINK_UP))
513 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
522 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
523 * @dev: class device that is converted into a Scsi_host.
524 * @attr: device attribute, not used.
525 * @buf: on return contains the sum of fc mapped and unmapped.
528 * Returns the ascii text number of the sum of the fc mapped and unmapped
531 * Returns: size of formatted string.
534 lpfc_num_discovered_ports_show(struct device *dev,
535 struct device_attribute *attr, char *buf)
537 struct Scsi_Host *shost = class_to_shost(dev);
538 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
540 return snprintf(buf, PAGE_SIZE, "%d\n",
541 vport->fc_map_cnt + vport->fc_unmap_cnt);
545 * lpfc_issue_lip - Misnomer, name carried over from long ago
546 * @shost: Scsi_Host pointer.
549 * Bring the link down gracefully then re-init the link. The firmware will
550 * re-init the fiber channel interface as required. Does not issue a LIP.
553 * -EPERM port offline or management commands are being blocked
554 * -ENOMEM cannot allocate memory for the mailbox command
555 * -EIO error sending the mailbox command
559 lpfc_issue_lip(struct Scsi_Host *shost)
561 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
562 struct lpfc_hba *phba = vport->phba;
563 LPFC_MBOXQ_t *pmboxq;
564 int mbxstatus = MBXERR_ERROR;
566 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
567 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
570 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
575 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
576 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
577 pmboxq->u.mb.mbxOwner = OWN_HOST;
579 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
581 if ((mbxstatus == MBX_SUCCESS) &&
582 (pmboxq->u.mb.mbxStatus == 0 ||
583 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
584 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
585 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
586 phba->cfg_link_speed);
587 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
591 lpfc_set_loopback_flag(phba);
592 if (mbxstatus != MBX_TIMEOUT)
593 mempool_free(pmboxq, phba->mbox_mem_pool);
595 if (mbxstatus == MBXERR_ERROR)
602 * lpfc_do_offline - Issues a mailbox command to bring the link down
603 * @phba: lpfc_hba pointer.
604 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
607 * Assumes any error from lpfc_do_offline() will be negative.
608 * Can wait up to 5 seconds for the port ring buffers count
609 * to reach zero, prints a warning if it is not zero and continues.
610 * lpfc_workq_post_event() returns a non-zero return code if call fails.
613 * -EIO error posting the event
617 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
619 struct completion online_compl;
620 struct lpfc_sli_ring *pring;
621 struct lpfc_sli *psli;
626 init_completion(&online_compl);
627 lpfc_workq_post_event(phba, &status, &online_compl,
628 LPFC_EVT_OFFLINE_PREP);
629 wait_for_completion(&online_compl);
636 /* Wait a little for things to settle down, but not
637 * long enough for dev loss timeout to expire.
639 for (i = 0; i < psli->num_rings; i++) {
640 pring = &psli->ring[i];
641 while (pring->txcmplq_cnt) {
643 if (cnt++ > 500) { /* 5 secs */
644 lpfc_printf_log(phba,
645 KERN_WARNING, LOG_INIT,
646 "0466 Outstanding IO when "
647 "bringing Adapter offline\n");
653 init_completion(&online_compl);
654 lpfc_workq_post_event(phba, &status, &online_compl, type);
655 wait_for_completion(&online_compl);
664 * lpfc_selective_reset - Offline then onlines the port
665 * @phba: lpfc_hba pointer.
668 * If the port is configured to allow a reset then the hba is brought
669 * offline then online.
672 * Assumes any error from lpfc_do_offline() will be negative.
675 * lpfc_do_offline() return code if not zero
676 * -EIO reset not configured or error posting the event
680 lpfc_selective_reset(struct lpfc_hba *phba)
682 struct completion online_compl;
685 if (!phba->cfg_enable_hba_reset)
688 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
693 init_completion(&online_compl);
694 lpfc_workq_post_event(phba, &status, &online_compl,
696 wait_for_completion(&online_compl);
705 * lpfc_issue_reset - Selectively resets an adapter
706 * @dev: class device that is converted into a Scsi_host.
707 * @attr: device attribute, not used.
708 * @buf: containing the string "selective".
709 * @count: unused variable.
712 * If the buf contains the string "selective" then lpfc_selective_reset()
713 * is called to perform the reset.
716 * Assumes any error from lpfc_selective_reset() will be negative.
717 * If lpfc_selective_reset() returns zero then the length of the buffer
718 * is returned which indicates success
721 * -EINVAL if the buffer does not contain the string "selective"
722 * length of buf if lpfc-selective_reset() if the call succeeds
723 * return value of lpfc_selective_reset() if the call fails
726 lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
727 const char *buf, size_t count)
729 struct Scsi_Host *shost = class_to_shost(dev);
730 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
731 struct lpfc_hba *phba = vport->phba;
733 int status = -EINVAL;
735 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
736 status = lpfc_selective_reset(phba);
745 * lpfc_nport_evt_cnt_show - Return the number of nport events
746 * @dev: class device that is converted into a Scsi_host.
747 * @attr: device attribute, not used.
748 * @buf: on return contains the ascii number of nport events.
750 * Returns: size of formatted string.
753 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
756 struct Scsi_Host *shost = class_to_shost(dev);
757 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
758 struct lpfc_hba *phba = vport->phba;
760 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
764 * lpfc_board_mode_show - Return the state of the board
765 * @dev: class device that is converted into a Scsi_host.
766 * @attr: device attribute, not used.
767 * @buf: on return contains the state of the adapter.
769 * Returns: size of formatted string.
772 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
775 struct Scsi_Host *shost = class_to_shost(dev);
776 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
777 struct lpfc_hba *phba = vport->phba;
780 if (phba->link_state == LPFC_HBA_ERROR)
782 else if (phba->link_state == LPFC_WARM_START)
783 state = "warm start";
784 else if (phba->link_state == LPFC_INIT_START)
789 return snprintf(buf, PAGE_SIZE, "%s\n", state);
793 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
794 * @dev: class device that is converted into a Scsi_host.
795 * @attr: device attribute, not used.
796 * @buf: containing one of the strings "online", "offline", "warm" or "error".
797 * @count: unused variable.
800 * -EACCES if enable hba reset not enabled
801 * -EINVAL if the buffer does not contain a valid string (see above)
802 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
803 * buf length greater than zero indicates success
806 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
807 const char *buf, size_t count)
809 struct Scsi_Host *shost = class_to_shost(dev);
810 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
811 struct lpfc_hba *phba = vport->phba;
812 struct completion online_compl;
815 if (!phba->cfg_enable_hba_reset)
817 init_completion(&online_compl);
819 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
820 lpfc_workq_post_event(phba, &status, &online_compl,
822 wait_for_completion(&online_compl);
823 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
824 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
825 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
826 if (phba->sli_rev == LPFC_SLI_REV4)
829 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
830 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
831 if (phba->sli_rev == LPFC_SLI_REV4)
834 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
845 * lpfc_get_hba_info - Return various bits of informaton about the adapter
846 * @phba: pointer to the adapter structure.
847 * @mxri: max xri count.
848 * @axri: available xri count.
849 * @mrpi: max rpi count.
850 * @arpi: available rpi count.
851 * @mvpi: max vpi count.
852 * @avpi: available vpi count.
855 * If an integer pointer for an count is not null then the value for the
863 lpfc_get_hba_info(struct lpfc_hba *phba,
864 uint32_t *mxri, uint32_t *axri,
865 uint32_t *mrpi, uint32_t *arpi,
866 uint32_t *mvpi, uint32_t *avpi)
868 struct lpfc_mbx_read_config *rd_config;
869 LPFC_MBOXQ_t *pmboxq;
875 * prevent udev from issuing mailbox commands until the port is
878 if (phba->link_state < LPFC_LINK_DOWN ||
879 !phba->mbox_mem_pool ||
880 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
883 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
886 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
889 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
892 pmb->mbxCommand = MBX_READ_CONFIG;
893 pmb->mbxOwner = OWN_HOST;
894 pmboxq->context1 = NULL;
896 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
897 rc = MBX_NOT_FINISHED;
899 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
901 if (rc != MBX_SUCCESS) {
902 if (rc != MBX_TIMEOUT)
903 mempool_free(pmboxq, phba->mbox_mem_pool);
907 if (phba->sli_rev == LPFC_SLI_REV4) {
908 rd_config = &pmboxq->u.mqe.un.rd_config;
910 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
912 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
913 phba->sli4_hba.max_cfg_param.rpi_used;
915 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
917 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
918 phba->sli4_hba.max_cfg_param.xri_used;
920 /* Account for differences with SLI-3. Get vpi count from
921 * mailbox data and subtract one for max vpi value.
923 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
924 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
929 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
932 *mrpi = pmb->un.varRdConfig.max_rpi;
934 *arpi = pmb->un.varRdConfig.avail_rpi;
936 *mxri = pmb->un.varRdConfig.max_xri;
938 *axri = pmb->un.varRdConfig.avail_xri;
940 *mvpi = pmb->un.varRdConfig.max_vpi;
942 *avpi = pmb->un.varRdConfig.avail_vpi;
945 mempool_free(pmboxq, phba->mbox_mem_pool);
950 * lpfc_max_rpi_show - Return maximum rpi
951 * @dev: class device that is converted into a Scsi_host.
952 * @attr: device attribute, not used.
953 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
956 * Calls lpfc_get_hba_info() asking for just the mrpi count.
957 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
958 * to "Unknown" and the buffer length is returned, therefore the caller
959 * must check for "Unknown" in the buffer to detect a failure.
961 * Returns: size of formatted string.
964 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
967 struct Scsi_Host *shost = class_to_shost(dev);
968 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
969 struct lpfc_hba *phba = vport->phba;
972 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
973 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
974 return snprintf(buf, PAGE_SIZE, "Unknown\n");
978 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
979 * @dev: class device that is converted into a Scsi_host.
980 * @attr: device attribute, not used.
981 * @buf: containing the used rpi count in decimal or "Unknown".
984 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
985 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
986 * to "Unknown" and the buffer length is returned, therefore the caller
987 * must check for "Unknown" in the buffer to detect a failure.
989 * Returns: size of formatted string.
992 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
995 struct Scsi_Host *shost = class_to_shost(dev);
996 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
997 struct lpfc_hba *phba = vport->phba;
1000 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1001 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1002 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1006 * lpfc_max_xri_show - Return maximum xri
1007 * @dev: class device that is converted into a Scsi_host.
1008 * @attr: device attribute, not used.
1009 * @buf: on return contains the maximum xri count in decimal or "Unknown".
1012 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1013 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1014 * to "Unknown" and the buffer length is returned, therefore the caller
1015 * must check for "Unknown" in the buffer to detect a failure.
1017 * Returns: size of formatted string.
1020 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
1023 struct Scsi_Host *shost = class_to_shost(dev);
1024 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1025 struct lpfc_hba *phba = vport->phba;
1028 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1029 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1030 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1034 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1035 * @dev: class device that is converted into a Scsi_host.
1036 * @attr: device attribute, not used.
1037 * @buf: on return contains the used xri count in decimal or "Unknown".
1040 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
1041 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1042 * to "Unknown" and the buffer length is returned, therefore the caller
1043 * must check for "Unknown" in the buffer to detect a failure.
1045 * Returns: size of formatted string.
1048 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
1051 struct Scsi_Host *shost = class_to_shost(dev);
1052 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1053 struct lpfc_hba *phba = vport->phba;
1056 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
1057 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1058 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1062 * lpfc_max_vpi_show - Return maximum vpi
1063 * @dev: class device that is converted into a Scsi_host.
1064 * @attr: device attribute, not used.
1065 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
1068 * Calls lpfc_get_hba_info() asking for just the mvpi count.
1069 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1070 * to "Unknown" and the buffer length is returned, therefore the caller
1071 * must check for "Unknown" in the buffer to detect a failure.
1073 * Returns: size of formatted string.
1076 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
1079 struct Scsi_Host *shost = class_to_shost(dev);
1080 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1081 struct lpfc_hba *phba = vport->phba;
1084 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
1085 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1086 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1090 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1091 * @dev: class device that is converted into a Scsi_host.
1092 * @attr: device attribute, not used.
1093 * @buf: on return contains the used vpi count in decimal or "Unknown".
1096 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
1097 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1098 * to "Unknown" and the buffer length is returned, therefore the caller
1099 * must check for "Unknown" in the buffer to detect a failure.
1101 * Returns: size of formatted string.
1104 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
1107 struct Scsi_Host *shost = class_to_shost(dev);
1108 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1109 struct lpfc_hba *phba = vport->phba;
1112 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
1113 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1114 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1118 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1119 * @dev: class device that is converted into a Scsi_host.
1120 * @attr: device attribute, not used.
1121 * @buf: text that must be interpreted to determine if npiv is supported.
1124 * Buffer will contain text indicating npiv is not suppoerted on the port,
1125 * the port is an NPIV physical port, or it is an npiv virtual port with
1126 * the id of the vport.
1128 * Returns: size of formatted string.
1131 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
1134 struct Scsi_Host *shost = class_to_shost(dev);
1135 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1136 struct lpfc_hba *phba = vport->phba;
1138 if (!(phba->max_vpi))
1139 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
1140 if (vport->port_type == LPFC_PHYSICAL_PORT)
1141 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
1142 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
1146 * lpfc_poll_show - Return text about poll support for the adapter
1147 * @dev: class device that is converted into a Scsi_host.
1148 * @attr: device attribute, not used.
1149 * @buf: on return contains the cfg_poll in hex.
1152 * cfg_poll should be a lpfc_polling_flags type.
1154 * Returns: size of formatted string.
1157 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
1160 struct Scsi_Host *shost = class_to_shost(dev);
1161 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1162 struct lpfc_hba *phba = vport->phba;
1164 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
1168 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1169 * @dev: class device that is converted into a Scsi_host.
1170 * @attr: device attribute, not used.
1171 * @buf: one or more lpfc_polling_flags values.
1175 * buf contents converted to integer and checked for a valid value.
1178 * -EINVAL if the buffer connot be converted or is out of range
1179 * length of the buf on success
1182 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
1183 const char *buf, size_t count)
1185 struct Scsi_Host *shost = class_to_shost(dev);
1186 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1187 struct lpfc_hba *phba = vport->phba;
1192 if (!isdigit(buf[0]))
1195 if (sscanf(buf, "%i", &val) != 1)
1198 if ((val & 0x3) != val)
1201 if (phba->sli_rev == LPFC_SLI_REV4)
1204 spin_lock_irq(&phba->hbalock);
1206 old_val = phba->cfg_poll;
1208 if (val & ENABLE_FCP_RING_POLLING) {
1209 if ((val & DISABLE_FCP_RING_INT) &&
1210 !(old_val & DISABLE_FCP_RING_INT)) {
1211 creg_val = readl(phba->HCregaddr);
1212 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
1213 writel(creg_val, phba->HCregaddr);
1214 readl(phba->HCregaddr); /* flush */
1216 lpfc_poll_start_timer(phba);
1218 } else if (val != 0x0) {
1219 spin_unlock_irq(&phba->hbalock);
1223 if (!(val & DISABLE_FCP_RING_INT) &&
1224 (old_val & DISABLE_FCP_RING_INT))
1226 spin_unlock_irq(&phba->hbalock);
1227 del_timer(&phba->fcp_poll_timer);
1228 spin_lock_irq(&phba->hbalock);
1229 creg_val = readl(phba->HCregaddr);
1230 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1231 writel(creg_val, phba->HCregaddr);
1232 readl(phba->HCregaddr); /* flush */
1235 phba->cfg_poll = val;
1237 spin_unlock_irq(&phba->hbalock);
1243 * lpfc_fips_level_show - Return the current FIPS level for the HBA
1244 * @dev: class unused variable.
1245 * @attr: device attribute, not used.
1246 * @buf: on return contains the module description text.
1248 * Returns: size of formatted string.
1251 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr,
1254 struct Scsi_Host *shost = class_to_shost(dev);
1255 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1256 struct lpfc_hba *phba = vport->phba;
1258 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
1262 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
1263 * @dev: class unused variable.
1264 * @attr: device attribute, not used.
1265 * @buf: on return contains the module description text.
1267 * Returns: size of formatted string.
1270 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr,
1273 struct Scsi_Host *shost = class_to_shost(dev);
1274 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1275 struct lpfc_hba *phba = vport->phba;
1277 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
1281 * lpfc_param_show - Return a cfg attribute value in decimal
1284 * Macro that given an attr e.g. hba_queue_depth expands
1285 * into a function with the name lpfc_hba_queue_depth_show.
1287 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1288 * @dev: class device that is converted into a Scsi_host.
1289 * @attr: device attribute, not used.
1290 * @buf: on return contains the attribute value in decimal.
1292 * Returns: size of formatted string.
1294 #define lpfc_param_show(attr) \
1296 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1299 struct Scsi_Host *shost = class_to_shost(dev);\
1300 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1301 struct lpfc_hba *phba = vport->phba;\
1303 val = phba->cfg_##attr;\
1304 return snprintf(buf, PAGE_SIZE, "%d\n",\
1309 * lpfc_param_hex_show - Return a cfg attribute value in hex
1312 * Macro that given an attr e.g. hba_queue_depth expands
1313 * into a function with the name lpfc_hba_queue_depth_show
1315 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1316 * @dev: class device that is converted into a Scsi_host.
1317 * @attr: device attribute, not used.
1318 * @buf: on return contains the attribute value in hexadecimal.
1320 * Returns: size of formatted string.
1322 #define lpfc_param_hex_show(attr) \
1324 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1327 struct Scsi_Host *shost = class_to_shost(dev);\
1328 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1329 struct lpfc_hba *phba = vport->phba;\
1331 val = phba->cfg_##attr;\
1332 return snprintf(buf, PAGE_SIZE, "%#x\n",\
1337 * lpfc_param_init - Intializes a cfg attribute
1340 * Macro that given an attr e.g. hba_queue_depth expands
1341 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1342 * takes a default argument, a minimum and maximum argument.
1344 * lpfc_##attr##_init: Initializes an attribute.
1345 * @phba: pointer the the adapter structure.
1346 * @val: integer attribute value.
1348 * Validates the min and max values then sets the adapter config field
1349 * accordingly, or uses the default if out of range and prints an error message.
1353 * -EINVAL if default used
1355 #define lpfc_param_init(attr, default, minval, maxval) \
1357 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1359 if (val >= minval && val <= maxval) {\
1360 phba->cfg_##attr = val;\
1363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1364 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
1365 "allowed range is ["#minval", "#maxval"]\n", val); \
1366 phba->cfg_##attr = default;\
1371 * lpfc_param_set - Set a cfg attribute value
1374 * Macro that given an attr e.g. hba_queue_depth expands
1375 * into a function with the name lpfc_hba_queue_depth_set
1377 * lpfc_##attr##_set: Sets an attribute value.
1378 * @phba: pointer the the adapter structure.
1379 * @val: integer attribute value.
1382 * Validates the min and max values then sets the
1383 * adapter config field if in the valid range. prints error message
1384 * and does not set the parameter if invalid.
1388 * -EINVAL if val is invalid
1390 #define lpfc_param_set(attr, default, minval, maxval) \
1392 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1394 if (val >= minval && val <= maxval) {\
1395 phba->cfg_##attr = val;\
1398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1399 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
1400 "allowed range is ["#minval", "#maxval"]\n", val); \
1405 * lpfc_param_store - Set a vport attribute value
1408 * Macro that given an attr e.g. hba_queue_depth expands
1409 * into a function with the name lpfc_hba_queue_depth_store.
1411 * lpfc_##attr##_store: Set an sttribute value.
1412 * @dev: class device that is converted into a Scsi_host.
1413 * @attr: device attribute, not used.
1414 * @buf: contains the attribute value in ascii.
1418 * Convert the ascii text number to an integer, then
1419 * use the lpfc_##attr##_set function to set the value.
1422 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1423 * length of buffer upon success.
1425 #define lpfc_param_store(attr) \
1427 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1428 const char *buf, size_t count) \
1430 struct Scsi_Host *shost = class_to_shost(dev);\
1431 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1432 struct lpfc_hba *phba = vport->phba;\
1434 if (!isdigit(buf[0]))\
1436 if (sscanf(buf, "%i", &val) != 1)\
1438 if (lpfc_##attr##_set(phba, val) == 0) \
1439 return strlen(buf);\
1445 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1448 * Macro that given an attr e.g. hba_queue_depth expands
1449 * into a function with the name lpfc_hba_queue_depth_show
1451 * lpfc_##attr##_show: prints the attribute value in decimal.
1452 * @dev: class device that is converted into a Scsi_host.
1453 * @attr: device attribute, not used.
1454 * @buf: on return contains the attribute value in decimal.
1456 * Returns: length of formatted string.
1458 #define lpfc_vport_param_show(attr) \
1460 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1463 struct Scsi_Host *shost = class_to_shost(dev);\
1464 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1466 val = vport->cfg_##attr;\
1467 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
1471 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1474 * Macro that given an attr e.g.
1475 * hba_queue_depth expands into a function with the name
1476 * lpfc_hba_queue_depth_show
1478 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1479 * @dev: class device that is converted into a Scsi_host.
1480 * @attr: device attribute, not used.
1481 * @buf: on return contains the attribute value in hexadecimal.
1483 * Returns: length of formatted string.
1485 #define lpfc_vport_param_hex_show(attr) \
1487 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1490 struct Scsi_Host *shost = class_to_shost(dev);\
1491 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1493 val = vport->cfg_##attr;\
1494 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
1498 * lpfc_vport_param_init - Initialize a vport cfg attribute
1501 * Macro that given an attr e.g. hba_queue_depth expands
1502 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1503 * takes a default argument, a minimum and maximum argument.
1505 * lpfc_##attr##_init: validates the min and max values then sets the
1506 * adapter config field accordingly, or uses the default if out of range
1507 * and prints an error message.
1508 * @phba: pointer the the adapter structure.
1509 * @val: integer attribute value.
1513 * -EINVAL if default used
1515 #define lpfc_vport_param_init(attr, default, minval, maxval) \
1517 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1519 if (val >= minval && val <= maxval) {\
1520 vport->cfg_##attr = val;\
1523 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1524 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1525 "allowed range is ["#minval", "#maxval"]\n", val); \
1526 vport->cfg_##attr = default;\
1531 * lpfc_vport_param_set - Set a vport cfg attribute
1534 * Macro that given an attr e.g. hba_queue_depth expands
1535 * into a function with the name lpfc_hba_queue_depth_set
1537 * lpfc_##attr##_set: validates the min and max values then sets the
1538 * adapter config field if in the valid range. prints error message
1539 * and does not set the parameter if invalid.
1540 * @phba: pointer the the adapter structure.
1541 * @val: integer attribute value.
1545 * -EINVAL if val is invalid
1547 #define lpfc_vport_param_set(attr, default, minval, maxval) \
1549 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1551 if (val >= minval && val <= maxval) {\
1552 vport->cfg_##attr = val;\
1555 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1556 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1557 "allowed range is ["#minval", "#maxval"]\n", val); \
1562 * lpfc_vport_param_store - Set a vport attribute
1565 * Macro that given an attr e.g. hba_queue_depth
1566 * expands into a function with the name lpfc_hba_queue_depth_store
1568 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1569 * use the lpfc_##attr##_set function to set the value.
1570 * @cdev: class device that is converted into a Scsi_host.
1571 * @buf: contains the attribute value in decimal.
1575 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1576 * length of buffer upon success.
1578 #define lpfc_vport_param_store(attr) \
1580 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1581 const char *buf, size_t count) \
1583 struct Scsi_Host *shost = class_to_shost(dev);\
1584 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1586 if (!isdigit(buf[0]))\
1588 if (sscanf(buf, "%i", &val) != 1)\
1590 if (lpfc_##attr##_set(vport, val) == 0) \
1591 return strlen(buf);\
1597 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
1598 static uint lpfc_##name = defval;\
1599 module_param(lpfc_##name, uint, 0);\
1600 MODULE_PARM_DESC(lpfc_##name, desc);\
1601 lpfc_param_init(name, defval, minval, maxval)
1603 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
1604 static uint lpfc_##name = defval;\
1605 module_param(lpfc_##name, uint, 0);\
1606 MODULE_PARM_DESC(lpfc_##name, desc);\
1607 lpfc_param_show(name)\
1608 lpfc_param_init(name, defval, minval, maxval)\
1609 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1611 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
1612 static uint lpfc_##name = defval;\
1613 module_param(lpfc_##name, uint, 0);\
1614 MODULE_PARM_DESC(lpfc_##name, desc);\
1615 lpfc_param_show(name)\
1616 lpfc_param_init(name, defval, minval, maxval)\
1617 lpfc_param_set(name, defval, minval, maxval)\
1618 lpfc_param_store(name)\
1619 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1620 lpfc_##name##_show, lpfc_##name##_store)
1622 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1623 static uint lpfc_##name = defval;\
1624 module_param(lpfc_##name, uint, 0);\
1625 MODULE_PARM_DESC(lpfc_##name, desc);\
1626 lpfc_param_hex_show(name)\
1627 lpfc_param_init(name, defval, minval, maxval)\
1628 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1630 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1631 static uint lpfc_##name = defval;\
1632 module_param(lpfc_##name, uint, 0);\
1633 MODULE_PARM_DESC(lpfc_##name, desc);\
1634 lpfc_param_hex_show(name)\
1635 lpfc_param_init(name, defval, minval, maxval)\
1636 lpfc_param_set(name, defval, minval, maxval)\
1637 lpfc_param_store(name)\
1638 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1639 lpfc_##name##_show, lpfc_##name##_store)
1641 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
1642 static uint lpfc_##name = defval;\
1643 module_param(lpfc_##name, uint, 0);\
1644 MODULE_PARM_DESC(lpfc_##name, desc);\
1645 lpfc_vport_param_init(name, defval, minval, maxval)
1647 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
1648 static uint lpfc_##name = defval;\
1649 module_param(lpfc_##name, uint, 0);\
1650 MODULE_PARM_DESC(lpfc_##name, desc);\
1651 lpfc_vport_param_show(name)\
1652 lpfc_vport_param_init(name, defval, minval, maxval)\
1653 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1655 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
1656 static uint lpfc_##name = defval;\
1657 module_param(lpfc_##name, uint, 0);\
1658 MODULE_PARM_DESC(lpfc_##name, desc);\
1659 lpfc_vport_param_show(name)\
1660 lpfc_vport_param_init(name, defval, minval, maxval)\
1661 lpfc_vport_param_set(name, defval, minval, maxval)\
1662 lpfc_vport_param_store(name)\
1663 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1664 lpfc_##name##_show, lpfc_##name##_store)
1666 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1667 static uint lpfc_##name = defval;\
1668 module_param(lpfc_##name, uint, 0);\
1669 MODULE_PARM_DESC(lpfc_##name, desc);\
1670 lpfc_vport_param_hex_show(name)\
1671 lpfc_vport_param_init(name, defval, minval, maxval)\
1672 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1674 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1675 static uint lpfc_##name = defval;\
1676 module_param(lpfc_##name, uint, 0);\
1677 MODULE_PARM_DESC(lpfc_##name, desc);\
1678 lpfc_vport_param_hex_show(name)\
1679 lpfc_vport_param_init(name, defval, minval, maxval)\
1680 lpfc_vport_param_set(name, defval, minval, maxval)\
1681 lpfc_vport_param_store(name)\
1682 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1683 lpfc_##name##_show, lpfc_##name##_store)
1685 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
1686 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
1687 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
1688 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
1689 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
1690 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
1691 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
1692 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
1693 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
1694 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
1695 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
1696 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
1697 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
1698 lpfc_link_state_store);
1699 static DEVICE_ATTR(option_rom_version, S_IRUGO,
1700 lpfc_option_rom_version_show, NULL);
1701 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
1702 lpfc_num_discovered_ports_show, NULL);
1703 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
1704 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
1705 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
1706 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
1707 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
1708 lpfc_board_mode_show, lpfc_board_mode_store);
1709 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
1710 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
1711 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
1712 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
1713 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
1714 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
1715 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
1716 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
1717 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
1718 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
1719 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
1722 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
1725 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
1726 * @dev: class device that is converted into a Scsi_host.
1727 * @attr: device attribute, not used.
1728 * @buf: containing the string lpfc_soft_wwn_key.
1729 * @count: must be size of lpfc_soft_wwn_key.
1732 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
1733 * length of buf indicates success
1736 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
1737 const char *buf, size_t count)
1739 struct Scsi_Host *shost = class_to_shost(dev);
1740 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1741 struct lpfc_hba *phba = vport->phba;
1742 unsigned int cnt = count;
1745 * We're doing a simple sanity check for soft_wwpn setting.
1746 * We require that the user write a specific key to enable
1747 * the soft_wwpn attribute to be settable. Once the attribute
1748 * is written, the enable key resets. If further updates are
1749 * desired, the key must be written again to re-enable the
1752 * The "key" is not secret - it is a hardcoded string shown
1753 * here. The intent is to protect against the random user or
1754 * application that is just writing attributes.
1757 /* count may include a LF at end of string */
1758 if (buf[cnt-1] == '\n')
1761 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
1762 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
1765 phba->soft_wwn_enable = 1;
1768 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
1769 lpfc_soft_wwn_enable_store);
1772 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
1773 * @dev: class device that is converted into a Scsi_host.
1774 * @attr: device attribute, not used.
1775 * @buf: on return contains the wwpn in hexadecimal.
1777 * Returns: size of formatted string.
1780 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
1783 struct Scsi_Host *shost = class_to_shost(dev);
1784 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1785 struct lpfc_hba *phba = vport->phba;
1787 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1788 (unsigned long long)phba->cfg_soft_wwpn);
1792 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
1793 * @dev class device that is converted into a Scsi_host.
1794 * @attr: device attribute, not used.
1795 * @buf: contains the wwpn in hexadecimal.
1796 * @count: number of wwpn bytes in buf
1799 * -EACCES hba reset not enabled, adapter over temp
1800 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
1801 * -EIO error taking adapter offline or online
1802 * value of count on success
1805 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
1806 const char *buf, size_t count)
1808 struct Scsi_Host *shost = class_to_shost(dev);
1809 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1810 struct lpfc_hba *phba = vport->phba;
1811 struct completion online_compl;
1812 int stat1=0, stat2=0;
1813 unsigned int i, j, cnt=count;
1816 if (!phba->cfg_enable_hba_reset)
1818 spin_lock_irq(&phba->hbalock);
1819 if (phba->over_temp_state == HBA_OVER_TEMP) {
1820 spin_unlock_irq(&phba->hbalock);
1823 spin_unlock_irq(&phba->hbalock);
1824 /* count may include a LF at end of string */
1825 if (buf[cnt-1] == '\n')
1828 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1829 ((cnt == 17) && (*buf++ != 'x')) ||
1830 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1833 phba->soft_wwn_enable = 0;
1835 memset(wwpn, 0, sizeof(wwpn));
1837 /* Validate and store the new name */
1838 for (i=0, j=0; i < 16; i++) {
1841 value = hex_to_bin(*buf++);
1843 j = (j << 4) | value;
1847 wwpn[i/2] = j & 0xff;
1851 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1852 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1853 if (phba->cfg_soft_wwnn)
1854 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1856 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1857 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1859 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1862 "0463 lpfc_soft_wwpn attribute set failed to "
1863 "reinit adapter - %d\n", stat1);
1864 init_completion(&online_compl);
1865 lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1866 wait_for_completion(&online_compl);
1868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1869 "0464 lpfc_soft_wwpn attribute set failed to "
1870 "reinit adapter - %d\n", stat2);
1871 return (stat1 || stat2) ? -EIO : count;
1873 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1874 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1877 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
1878 * @dev: class device that is converted into a Scsi_host.
1879 * @attr: device attribute, not used.
1880 * @buf: on return contains the wwnn in hexadecimal.
1882 * Returns: size of formatted string.
1885 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
1888 struct Scsi_Host *shost = class_to_shost(dev);
1889 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1890 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1891 (unsigned long long)phba->cfg_soft_wwnn);
1895 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
1896 * @cdev: class device that is converted into a Scsi_host.
1897 * @buf: contains the ww node name in hexadecimal.
1898 * @count: number of wwnn bytes in buf.
1901 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
1902 * value of count on success
1905 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
1906 const char *buf, size_t count)
1908 struct Scsi_Host *shost = class_to_shost(dev);
1909 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1910 unsigned int i, j, cnt=count;
1913 /* count may include a LF at end of string */
1914 if (buf[cnt-1] == '\n')
1917 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1918 ((cnt == 17) && (*buf++ != 'x')) ||
1919 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1923 * Allow wwnn to be set many times, as long as the enable is set.
1924 * However, once the wwpn is set, everything locks.
1927 memset(wwnn, 0, sizeof(wwnn));
1929 /* Validate and store the new name */
1930 for (i=0, j=0; i < 16; i++) {
1933 value = hex_to_bin(*buf++);
1935 j = (j << 4) | value;
1939 wwnn[i/2] = j & 0xff;
1943 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1945 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1946 "lpfc%d: soft_wwnn set. Value will take effect upon "
1947 "setting of the soft_wwpn\n", phba->brd_no);
1951 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1952 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1955 static int lpfc_poll = 0;
1956 module_param(lpfc_poll, int, 0);
1957 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1959 " 1 - poll with interrupts enabled"
1960 " 3 - poll and disable FCP ring interrupts");
1962 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1963 lpfc_poll_show, lpfc_poll_store);
1965 int lpfc_sli_mode = 0;
1966 module_param(lpfc_sli_mode, int, 0);
1967 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1968 " 0 - auto (SLI-3 if supported),"
1969 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1970 " 3 - select SLI-3");
1972 int lpfc_enable_npiv = 1;
1973 module_param(lpfc_enable_npiv, int, 0);
1974 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
1975 lpfc_param_show(enable_npiv);
1976 lpfc_param_init(enable_npiv, 1, 0, 1);
1977 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
1980 # lpfc_suppress_link_up: Bring link up at initialization
1981 # 0x0 = bring link up (issue MBX_INIT_LINK)
1982 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
1983 # 0x2 = never bring up link
1984 # Default value is 0.
1986 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
1987 LPFC_DELAY_INIT_LINK_INDEFINITELY,
1988 "Suppress Link Up at initialization");
1990 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
1998 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2000 struct Scsi_Host *shost = class_to_shost(dev);
2001 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2003 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
2006 static DEVICE_ATTR(iocb_hw, S_IRUGO,
2007 lpfc_iocb_hw_show, NULL);
2009 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2011 struct Scsi_Host *shost = class_to_shost(dev);
2012 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2014 return snprintf(buf, PAGE_SIZE, "%d\n",
2015 phba->sli.ring[LPFC_ELS_RING].txq_max);
2018 static DEVICE_ATTR(txq_hw, S_IRUGO,
2019 lpfc_txq_hw_show, NULL);
2021 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
2024 struct Scsi_Host *shost = class_to_shost(dev);
2025 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2027 return snprintf(buf, PAGE_SIZE, "%d\n",
2028 phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
2031 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
2032 lpfc_txcmplq_hw_show, NULL);
2034 int lpfc_iocb_cnt = 2;
2035 module_param(lpfc_iocb_cnt, int, 1);
2036 MODULE_PARM_DESC(lpfc_iocb_cnt,
2037 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
2038 lpfc_param_show(iocb_cnt);
2039 lpfc_param_init(iocb_cnt, 2, 1, 5);
2040 static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO,
2041 lpfc_iocb_cnt_show, NULL);
2044 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
2045 # until the timer expires. Value range is [0,255]. Default value is 30.
2047 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2048 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
2049 module_param(lpfc_nodev_tmo, int, 0);
2050 MODULE_PARM_DESC(lpfc_nodev_tmo,
2051 "Seconds driver will hold I/O waiting "
2052 "for a device to come back");
2055 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2056 * @dev: class converted to a Scsi_host structure.
2057 * @attr: device attribute, not used.
2058 * @buf: on return contains the dev loss timeout in decimal.
2060 * Returns: size of formatted string.
2063 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
2066 struct Scsi_Host *shost = class_to_shost(dev);
2067 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2069 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
2073 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2074 * @vport: lpfc vport structure pointer.
2075 * @val: contains the nodev timeout value.
2078 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
2079 * a kernel error message is printed and zero is returned.
2080 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2081 * Otherwise nodev tmo is set to the default value.
2084 * zero if already set or if val is in range
2085 * -EINVAL val out of range
2088 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
2090 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
2091 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
2092 if (val != LPFC_DEF_DEVLOSS_TMO)
2093 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2094 "0407 Ignoring nodev_tmo module "
2095 "parameter because devloss_tmo is "
2100 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2101 vport->cfg_nodev_tmo = val;
2102 vport->cfg_devloss_tmo = val;
2105 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2106 "0400 lpfc_nodev_tmo attribute cannot be set to"
2107 " %d, allowed range is [%d, %d]\n",
2108 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2109 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2114 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2115 * @vport: lpfc vport structure pointer.
2118 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
2121 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2123 struct Scsi_Host *shost;
2124 struct lpfc_nodelist *ndlp;
2126 shost = lpfc_shost_from_vport(vport);
2127 spin_lock_irq(shost->host_lock);
2128 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2129 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2130 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
2131 spin_unlock_irq(shost->host_lock);
2135 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2136 * @vport: lpfc vport structure pointer.
2137 * @val: contains the tmo value.
2140 * If the devloss tmo is already set or the vport dev loss tmo has changed
2141 * then a kernel error message is printed and zero is returned.
2142 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2143 * Otherwise nodev tmo is set to the default value.
2146 * zero if already set or if val is in range
2147 * -EINVAL val out of range
2150 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2152 if (vport->dev_loss_tmo_changed ||
2153 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2154 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2155 "0401 Ignoring change to nodev_tmo "
2156 "because devloss_tmo is set.\n");
2159 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2160 vport->cfg_nodev_tmo = val;
2161 vport->cfg_devloss_tmo = val;
2162 lpfc_update_rport_devloss_tmo(vport);
2165 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2166 "0403 lpfc_nodev_tmo attribute cannot be set to"
2167 "%d, allowed range is [%d, %d]\n",
2168 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2172 lpfc_vport_param_store(nodev_tmo)
2174 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
2175 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
2178 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
2179 # disappear until the timer expires. Value range is [0,255]. Default
2182 module_param(lpfc_devloss_tmo, int, 0);
2183 MODULE_PARM_DESC(lpfc_devloss_tmo,
2184 "Seconds driver will hold I/O waiting "
2185 "for a device to come back");
2186 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
2187 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
2188 lpfc_vport_param_show(devloss_tmo)
2191 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
2192 * @vport: lpfc vport structure pointer.
2193 * @val: contains the tmo value.
2196 * If val is in a valid range then set the vport nodev tmo,
2197 * devloss tmo, also set the vport dev loss tmo changed flag.
2198 * Else a kernel error message is printed.
2201 * zero if val is in range
2202 * -EINVAL val out of range
2205 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
2207 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2208 vport->cfg_nodev_tmo = val;
2209 vport->cfg_devloss_tmo = val;
2210 vport->dev_loss_tmo_changed = 1;
2211 lpfc_update_rport_devloss_tmo(vport);
2215 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2216 "0404 lpfc_devloss_tmo attribute cannot be set to"
2217 " %d, allowed range is [%d, %d]\n",
2218 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2222 lpfc_vport_param_store(devloss_tmo)
2223 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
2224 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
2227 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
2228 # deluged with LOTS of information.
2229 # You can set a bit mask to record specific types of verbose messages:
2230 # See lpfc_logmsh.h for definitions.
2232 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
2233 "Verbose logging bit-mask");
2236 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
2237 # objects that have been registered with the nameserver after login.
2239 LPFC_VPORT_ATTR_R(enable_da_id, 0, 0, 1,
2240 "Deregister nameserver objects before LOGO");
2243 # lun_queue_depth: This parameter is used to limit the number of outstanding
2244 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
2246 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
2247 "Max number of FCP commands we can queue to a specific LUN");
2250 # tgt_queue_depth: This parameter is used to limit the number of outstanding
2251 # commands per target port. Value range is [10,65535]. Default value is 65535.
2253 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
2254 "Max number of FCP commands we can queue to a specific target port");
2257 # hba_queue_depth: This parameter is used to limit the number of outstanding
2258 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
2259 # value is greater than the maximum number of exchanges supported by the HBA,
2260 # then maximum number of exchanges supported by the HBA is used to determine
2261 # the hba_queue_depth.
2263 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
2264 "Max number of FCP commands we can queue to a lpfc HBA");
2267 # peer_port_login: This parameter allows/prevents logins
2268 # between peer ports hosted on the same physical port.
2269 # When this parameter is set 0 peer ports of same physical port
2270 # are not allowed to login to each other.
2271 # When this parameter is set 1 peer ports of same physical port
2272 # are allowed to login to each other.
2273 # Default value of this parameter is 0.
2275 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
2276 "Allow peer ports on the same physical port to login to each "
2280 # restrict_login: This parameter allows/prevents logins
2281 # between Virtual Ports and remote initiators.
2282 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
2283 # other initiators and will attempt to PLOGI all remote ports.
2284 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
2285 # remote ports and will not attempt to PLOGI to other initiators.
2286 # This parameter does not restrict to the physical port.
2287 # This parameter does not restrict logins to Fabric resident remote ports.
2288 # Default value of this parameter is 1.
2290 static int lpfc_restrict_login = 1;
2291 module_param(lpfc_restrict_login, int, 0);
2292 MODULE_PARM_DESC(lpfc_restrict_login,
2293 "Restrict virtual ports login to remote initiators.");
2294 lpfc_vport_param_show(restrict_login);
2297 * lpfc_restrict_login_init - Set the vport restrict login flag
2298 * @vport: lpfc vport structure pointer.
2299 * @val: contains the restrict login value.
2302 * If val is not in a valid range then log a kernel error message and set
2303 * the vport restrict login to one.
2304 * If the port type is physical clear the restrict login flag and return.
2305 * Else set the restrict login flag to val.
2308 * zero if val is in range
2309 * -EINVAL val out of range
2312 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
2314 if (val < 0 || val > 1) {
2315 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2316 "0422 lpfc_restrict_login attribute cannot "
2317 "be set to %d, allowed range is [0, 1]\n",
2319 vport->cfg_restrict_login = 1;
2322 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2323 vport->cfg_restrict_login = 0;
2326 vport->cfg_restrict_login = val;
2331 * lpfc_restrict_login_set - Set the vport restrict login flag
2332 * @vport: lpfc vport structure pointer.
2333 * @val: contains the restrict login value.
2336 * If val is not in a valid range then log a kernel error message and set
2337 * the vport restrict login to one.
2338 * If the port type is physical and the val is not zero log a kernel
2339 * error message, clear the restrict login flag and return zero.
2340 * Else set the restrict login flag to val.
2343 * zero if val is in range
2344 * -EINVAL val out of range
2347 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
2349 if (val < 0 || val > 1) {
2350 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2351 "0425 lpfc_restrict_login attribute cannot "
2352 "be set to %d, allowed range is [0, 1]\n",
2354 vport->cfg_restrict_login = 1;
2357 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
2358 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2359 "0468 lpfc_restrict_login must be 0 for "
2360 "Physical ports.\n");
2361 vport->cfg_restrict_login = 0;
2364 vport->cfg_restrict_login = val;
2367 lpfc_vport_param_store(restrict_login);
2368 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
2369 lpfc_restrict_login_show, lpfc_restrict_login_store);
2372 # Some disk devices have a "select ID" or "select Target" capability.
2373 # From a protocol standpoint "select ID" usually means select the
2374 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
2375 # annex" which contains a table that maps a "select ID" (a number
2376 # between 0 and 7F) to an ALPA. By default, for compatibility with
2377 # older drivers, the lpfc driver scans this table from low ALPA to high
2380 # Turning on the scan-down variable (on = 1, off = 0) will
2381 # cause the lpfc driver to use an inverted table, effectively
2382 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
2384 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
2385 # and will not work across a fabric. Also this parameter will take
2386 # effect only in the case when ALPA map is not available.)
2388 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
2389 "Start scanning for devices from highest ALPA to lowest");
2392 # lpfc_topology: link topology for init link
2393 # 0x0 = attempt loop mode then point-to-point
2394 # 0x01 = internal loopback mode
2395 # 0x02 = attempt point-to-point mode only
2396 # 0x04 = attempt loop mode only
2397 # 0x06 = attempt point-to-point mode then loop
2398 # Set point-to-point mode if you want to run as an N_Port.
2399 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
2400 # Default value is 0.
2404 * lpfc_topology_set - Set the adapters topology field
2405 * @phba: lpfc_hba pointer.
2406 * @val: topology value.
2409 * If val is in a valid range then set the adapter's topology field and
2410 * issue a lip; if the lip fails reset the topology to the old value.
2412 * If the value is not in range log a kernel error message and return an error.
2415 * zero if val is in range and lip okay
2416 * non-zero return value from lpfc_issue_lip()
2417 * -EINVAL val out of range
2420 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
2421 const char *buf, size_t count)
2423 struct Scsi_Host *shost = class_to_shost(dev);
2424 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2425 struct lpfc_hba *phba = vport->phba;
2428 const char *val_buf = buf;
2432 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
2434 val_buf = &buf[strlen("nolip ")];
2437 if (!isdigit(val_buf[0]))
2439 if (sscanf(val_buf, "%i", &val) != 1)
2442 if (val >= 0 && val <= 6) {
2443 prev_val = phba->cfg_topology;
2444 phba->cfg_topology = val;
2448 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2450 phba->cfg_topology = prev_val;
2455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2456 "%d:0467 lpfc_topology attribute cannot be set to %d, "
2457 "allowed range is [0, 6]\n",
2461 static int lpfc_topology = 0;
2462 module_param(lpfc_topology, int, 0);
2463 MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
2464 lpfc_param_show(topology)
2465 lpfc_param_init(topology, 0, 0, 6)
2466 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
2467 lpfc_topology_show, lpfc_topology_store);
2470 * lpfc_static_vport_show: Read callback function for
2471 * lpfc_static_vport sysfs file.
2472 * @dev: Pointer to class device object.
2473 * @attr: device attribute structure.
2474 * @buf: Data buffer.
2476 * This function is the read call back function for
2477 * lpfc_static_vport sysfs file. The lpfc_static_vport
2478 * sysfs file report the mageability of the vport.
2481 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
2484 struct Scsi_Host *shost = class_to_shost(dev);
2485 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2486 if (vport->vport_flag & STATIC_VPORT)
2487 sprintf(buf, "1\n");
2489 sprintf(buf, "0\n");
2495 * Sysfs attribute to control the statistical data collection.
2497 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
2498 lpfc_static_vport_show, NULL);
2501 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
2502 * @dev: Pointer to class device.
2503 * @buf: Data buffer.
2504 * @count: Size of the data buffer.
2506 * This function get called when an user write to the lpfc_stat_data_ctrl
2507 * sysfs file. This function parse the command written to the sysfs file
2508 * and take appropriate action. These commands are used for controlling
2509 * driver statistical data collection.
2510 * Following are the command this function handles.
2512 * setbucket <bucket_type> <base> <step>
2513 * = Set the latency buckets.
2514 * destroybucket = destroy all the buckets.
2515 * start = start data collection
2516 * stop = stop data collection
2517 * reset = reset the collected data
2520 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
2521 const char *buf, size_t count)
2523 struct Scsi_Host *shost = class_to_shost(dev);
2524 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2525 struct lpfc_hba *phba = vport->phba;
2526 #define LPFC_MAX_DATA_CTRL_LEN 1024
2527 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
2529 char *str_ptr, *token;
2530 struct lpfc_vport **vports;
2531 struct Scsi_Host *v_shost;
2532 char *bucket_type_str, *base_str, *step_str;
2533 unsigned long base, step, bucket_type;
2535 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
2536 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
2539 strcpy(bucket_data, buf);
2540 str_ptr = &bucket_data[0];
2541 /* Ignore this token - this is command token */
2542 token = strsep(&str_ptr, "\t ");
2546 bucket_type_str = strsep(&str_ptr, "\t ");
2547 if (!bucket_type_str)
2550 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
2551 bucket_type = LPFC_LINEAR_BUCKET;
2552 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
2553 bucket_type = LPFC_POWER2_BUCKET;
2557 base_str = strsep(&str_ptr, "\t ");
2560 base = simple_strtoul(base_str, NULL, 0);
2562 step_str = strsep(&str_ptr, "\t ");
2565 step = simple_strtoul(step_str, NULL, 0);
2569 /* Block the data collection for every vport */
2570 vports = lpfc_create_vport_work_array(phba);
2574 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2575 v_shost = lpfc_shost_from_vport(vports[i]);
2576 spin_lock_irq(v_shost->host_lock);
2577 /* Block and reset data collection */
2578 vports[i]->stat_data_blocked = 1;
2579 if (vports[i]->stat_data_enabled)
2580 lpfc_vport_reset_stat_data(vports[i]);
2581 spin_unlock_irq(v_shost->host_lock);
2584 /* Set the bucket attributes */
2585 phba->bucket_type = bucket_type;
2586 phba->bucket_base = base;
2587 phba->bucket_step = step;
2589 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2590 v_shost = lpfc_shost_from_vport(vports[i]);
2592 /* Unblock data collection */
2593 spin_lock_irq(v_shost->host_lock);
2594 vports[i]->stat_data_blocked = 0;
2595 spin_unlock_irq(v_shost->host_lock);
2597 lpfc_destroy_vport_work_array(phba, vports);
2601 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
2602 vports = lpfc_create_vport_work_array(phba);
2606 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2607 v_shost = lpfc_shost_from_vport(vports[i]);
2608 spin_lock_irq(shost->host_lock);
2609 vports[i]->stat_data_blocked = 1;
2610 lpfc_free_bucket(vport);
2611 vport->stat_data_enabled = 0;
2612 vports[i]->stat_data_blocked = 0;
2613 spin_unlock_irq(shost->host_lock);
2615 lpfc_destroy_vport_work_array(phba, vports);
2616 phba->bucket_type = LPFC_NO_BUCKET;
2617 phba->bucket_base = 0;
2618 phba->bucket_step = 0;
2622 if (!strncmp(buf, "start", strlen("start"))) {
2623 /* If no buckets configured return error */
2624 if (phba->bucket_type == LPFC_NO_BUCKET)
2626 spin_lock_irq(shost->host_lock);
2627 if (vport->stat_data_enabled) {
2628 spin_unlock_irq(shost->host_lock);
2631 lpfc_alloc_bucket(vport);
2632 vport->stat_data_enabled = 1;
2633 spin_unlock_irq(shost->host_lock);
2637 if (!strncmp(buf, "stop", strlen("stop"))) {
2638 spin_lock_irq(shost->host_lock);
2639 if (vport->stat_data_enabled == 0) {
2640 spin_unlock_irq(shost->host_lock);
2643 lpfc_free_bucket(vport);
2644 vport->stat_data_enabled = 0;
2645 spin_unlock_irq(shost->host_lock);
2649 if (!strncmp(buf, "reset", strlen("reset"))) {
2650 if ((phba->bucket_type == LPFC_NO_BUCKET)
2651 || !vport->stat_data_enabled)
2653 spin_lock_irq(shost->host_lock);
2654 vport->stat_data_blocked = 1;
2655 lpfc_vport_reset_stat_data(vport);
2656 vport->stat_data_blocked = 0;
2657 spin_unlock_irq(shost->host_lock);
2665 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
2666 * @dev: Pointer to class device object.
2667 * @buf: Data buffer.
2669 * This function is the read call back function for
2670 * lpfc_stat_data_ctrl sysfs file. This function report the
2671 * current statistical data collection state.
2674 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
2677 struct Scsi_Host *shost = class_to_shost(dev);
2678 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2679 struct lpfc_hba *phba = vport->phba;
2683 unsigned long bucket_value;
2685 switch (phba->bucket_type) {
2686 case LPFC_LINEAR_BUCKET:
2687 bucket_type = "linear";
2689 case LPFC_POWER2_BUCKET:
2690 bucket_type = "power2";
2693 bucket_type = "No Bucket";
2697 sprintf(&buf[index], "Statistical Data enabled :%d, "
2698 "blocked :%d, Bucket type :%s, Bucket base :%d,"
2699 " Bucket step :%d\nLatency Ranges :",
2700 vport->stat_data_enabled, vport->stat_data_blocked,
2701 bucket_type, phba->bucket_base, phba->bucket_step);
2702 index = strlen(buf);
2703 if (phba->bucket_type != LPFC_NO_BUCKET) {
2704 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2705 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
2706 bucket_value = phba->bucket_base +
2707 phba->bucket_step * i;
2709 bucket_value = phba->bucket_base +
2710 (1 << i) * phba->bucket_step;
2712 if (index + 10 > PAGE_SIZE)
2714 sprintf(&buf[index], "%08ld ", bucket_value);
2715 index = strlen(buf);
2718 sprintf(&buf[index], "\n");
2723 * Sysfs attribute to control the statistical data collection.
2725 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
2726 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
2729 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
2733 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
2736 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
2737 #define MAX_STAT_DATA_SIZE_PER_TARGET \
2738 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
2742 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
2744 * @kobj: Pointer to the kernel object
2745 * @bin_attr: Attribute object
2746 * @buff: Buffer pointer
2748 * @count: Buffer size
2750 * This function is the read call back function for lpfc_drvr_stat_data
2751 * sysfs file. This function export the statistical data to user
2755 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
2756 struct bin_attribute *bin_attr,
2757 char *buf, loff_t off, size_t count)
2759 struct device *dev = container_of(kobj, struct device,
2761 struct Scsi_Host *shost = class_to_shost(dev);
2762 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2763 struct lpfc_hba *phba = vport->phba;
2764 int i = 0, index = 0;
2765 unsigned long nport_index;
2766 struct lpfc_nodelist *ndlp = NULL;
2767 nport_index = (unsigned long)off /
2768 MAX_STAT_DATA_SIZE_PER_TARGET;
2770 if (!vport->stat_data_enabled || vport->stat_data_blocked
2771 || (phba->bucket_type == LPFC_NO_BUCKET))
2774 spin_lock_irq(shost->host_lock);
2775 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2776 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
2779 if (nport_index > 0) {
2784 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
2788 if (!ndlp->lat_data)
2792 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
2793 ndlp->nlp_portname.u.wwn[0],
2794 ndlp->nlp_portname.u.wwn[1],
2795 ndlp->nlp_portname.u.wwn[2],
2796 ndlp->nlp_portname.u.wwn[3],
2797 ndlp->nlp_portname.u.wwn[4],
2798 ndlp->nlp_portname.u.wwn[5],
2799 ndlp->nlp_portname.u.wwn[6],
2800 ndlp->nlp_portname.u.wwn[7]);
2802 index = strlen(buf);
2804 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2805 sprintf(&buf[index], "%010u,",
2806 ndlp->lat_data[i].cmd_count);
2807 index = strlen(buf);
2809 sprintf(&buf[index], "\n");
2810 index = strlen(buf);
2812 spin_unlock_irq(shost->host_lock);
2816 static struct bin_attribute sysfs_drvr_stat_data_attr = {
2818 .name = "lpfc_drvr_stat_data",
2821 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
2822 .read = sysfs_drvr_stat_data_read,
2827 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
2829 # 0 = auto select (default)
2834 # Value range is [0,8]. Default value is 0.
2838 * lpfc_link_speed_set - Set the adapters link speed
2839 * @phba: lpfc_hba pointer.
2840 * @val: link speed value.
2843 * If val is in a valid range then set the adapter's link speed field and
2844 * issue a lip; if the lip fails reset the link speed to the old value.
2847 * If the value is not in range log a kernel error message and return an error.
2850 * zero if val is in range and lip okay.
2851 * non-zero return value from lpfc_issue_lip()
2852 * -EINVAL val out of range
2855 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
2856 const char *buf, size_t count)
2858 struct Scsi_Host *shost = class_to_shost(dev);
2859 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2860 struct lpfc_hba *phba = vport->phba;
2863 const char *val_buf = buf;
2867 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
2869 val_buf = &buf[strlen("nolip ")];
2872 if (!isdigit(val_buf[0]))
2874 if (sscanf(val_buf, "%i", &val) != 1)
2877 if (((val == LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
2878 ((val == LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
2879 ((val == LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
2880 ((val == LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
2881 ((val == LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)))
2884 if ((val >= 0 && val <= 8)
2885 && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
2886 prev_val = phba->cfg_link_speed;
2887 phba->cfg_link_speed = val;
2891 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2893 phba->cfg_link_speed = prev_val;
2899 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2900 "%d:0469 lpfc_link_speed attribute cannot be set to %d, "
2901 "allowed range is [0, 8]\n",
2906 static int lpfc_link_speed = 0;
2907 module_param(lpfc_link_speed, int, 0);
2908 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
2909 lpfc_param_show(link_speed)
2912 * lpfc_link_speed_init - Set the adapters link speed
2913 * @phba: lpfc_hba pointer.
2914 * @val: link speed value.
2917 * If val is in a valid range then set the adapter's link speed field.
2920 * If the value is not in range log a kernel error message, clear the link
2921 * speed and return an error.
2924 * zero if val saved.
2925 * -EINVAL val out of range
2928 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
2930 if ((val >= 0 && val <= LPFC_MAX_LINK_SPEED)
2931 && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
2932 phba->cfg_link_speed = val;
2935 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2936 "0405 lpfc_link_speed attribute cannot "
2937 "be set to %d, allowed values are "
2938 "["LPFC_LINK_SPEED_STRING"]\n", val);
2939 phba->cfg_link_speed = 0;
2943 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
2944 lpfc_link_speed_show, lpfc_link_speed_store);
2947 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
2948 # 0 = aer disabled or not supported
2949 # 1 = aer supported and enabled (default)
2950 # Value range is [0,1]. Default value is 1.
2954 * lpfc_aer_support_store - Set the adapter for aer support
2956 * @dev: class device that is converted into a Scsi_host.
2957 * @attr: device attribute, not used.
2958 * @buf: containing the string "selective".
2959 * @count: unused variable.
2962 * If the val is 1 and currently the device's AER capability was not
2963 * enabled, invoke the kernel's enable AER helper routine, trying to
2964 * enable the device's AER capability. If the helper routine enabling
2965 * AER returns success, update the device's cfg_aer_support flag to
2966 * indicate AER is supported by the device; otherwise, if the device
2967 * AER capability is already enabled to support AER, then do nothing.
2969 * If the val is 0 and currently the device's AER support was enabled,
2970 * invoke the kernel's disable AER helper routine. After that, update
2971 * the device's cfg_aer_support flag to indicate AER is not supported
2972 * by the device; otherwise, if the device AER capability is already
2973 * disabled from supporting AER, then do nothing.
2976 * length of the buf on success if val is in range the intended mode
2978 * -EINVAL if val out of range or intended mode is not supported.
2981 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
2982 const char *buf, size_t count)
2984 struct Scsi_Host *shost = class_to_shost(dev);
2985 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
2986 struct lpfc_hba *phba = vport->phba;
2987 int val = 0, rc = -EINVAL;
2989 if (!isdigit(buf[0]))
2991 if (sscanf(buf, "%i", &val) != 1)
2996 if (phba->hba_flag & HBA_AER_ENABLED) {
2997 rc = pci_disable_pcie_error_reporting(phba->pcidev);
2999 spin_lock_irq(&phba->hbalock);
3000 phba->hba_flag &= ~HBA_AER_ENABLED;
3001 spin_unlock_irq(&phba->hbalock);
3002 phba->cfg_aer_support = 0;
3007 phba->cfg_aer_support = 0;
3012 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
3013 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3015 spin_lock_irq(&phba->hbalock);
3016 phba->hba_flag |= HBA_AER_ENABLED;
3017 spin_unlock_irq(&phba->hbalock);
3018 phba->cfg_aer_support = 1;
3023 phba->cfg_aer_support = 1;
3034 static int lpfc_aer_support = 1;
3035 module_param(lpfc_aer_support, int, 1);
3036 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
3037 lpfc_param_show(aer_support)
3040 * lpfc_aer_support_init - Set the initial adapters aer support flag
3041 * @phba: lpfc_hba pointer.
3042 * @val: link speed value.
3045 * If val is in a valid range [0,1], then set the adapter's initial
3046 * cfg_aer_support field. It will be up to the driver's probe_one
3047 * routine to determine whether the device's AER support can be set
3051 * If the value is not in range log a kernel error message, and
3052 * choose the default value of setting AER support and return.
3055 * zero if val saved.
3056 * -EINVAL val out of range
3059 lpfc_aer_support_init(struct lpfc_hba *phba, int val)
3061 if (val == 0 || val == 1) {
3062 phba->cfg_aer_support = val;
3065 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3066 "2712 lpfc_aer_support attribute value %d out "
3067 "of range, allowed values are 0|1, setting it "
3068 "to default value of 1\n", val);
3069 /* By default, try to enable AER on a device */
3070 phba->cfg_aer_support = 1;
3074 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
3075 lpfc_aer_support_show, lpfc_aer_support_store);
3078 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
3079 * @dev: class device that is converted into a Scsi_host.
3080 * @attr: device attribute, not used.
3081 * @buf: containing the string "selective".
3082 * @count: unused variable.
3085 * If the @buf contains 1 and the device currently has the AER support
3086 * enabled, then invokes the kernel AER helper routine
3087 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
3088 * error status register.
3093 * -EINVAL if the buf does not contain the 1 or the device is not currently
3094 * enabled with the AER support.
3097 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
3098 const char *buf, size_t count)
3100 struct Scsi_Host *shost = class_to_shost(dev);
3101 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3102 struct lpfc_hba *phba = vport->phba;
3105 if (!isdigit(buf[0]))
3107 if (sscanf(buf, "%i", &val) != 1)
3112 if (phba->hba_flag & HBA_AER_ENABLED)
3113 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
3121 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
3122 lpfc_aer_cleanup_state);
3125 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
3126 # Value range is [2,3]. Default value is 3.
3128 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
3129 "Select Fibre Channel class of service for FCP sequences");
3132 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
3133 # is [0,1]. Default value is 0.
3135 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
3136 "Use ADISC on rediscovery to authenticate FCP devices");
3139 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
3140 # depth. Default value is 0. When the value of this parameter is zero the
3141 # SCSI command completion time is not used for controlling I/O queue depth. When
3142 # the parameter is set to a non-zero value, the I/O queue depth is controlled
3143 # to limit the I/O completion time to the parameter value.
3144 # The value is set in milliseconds.
3146 static int lpfc_max_scsicmpl_time;
3147 module_param(lpfc_max_scsicmpl_time, int, 0);
3148 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
3149 "Use command completion time to control queue depth");
3150 lpfc_vport_param_show(max_scsicmpl_time);
3151 lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
3153 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
3155 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3156 struct lpfc_nodelist *ndlp, *next_ndlp;
3158 if (val == vport->cfg_max_scsicmpl_time)
3160 if ((val < 0) || (val > 60000))
3162 vport->cfg_max_scsicmpl_time = val;
3164 spin_lock_irq(shost->host_lock);
3165 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
3166 if (!NLP_CHK_NODE_ACT(ndlp))
3168 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3170 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
3172 spin_unlock_irq(shost->host_lock);
3175 lpfc_vport_param_store(max_scsicmpl_time);
3176 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
3177 lpfc_max_scsicmpl_time_show,
3178 lpfc_max_scsicmpl_time_store);
3181 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
3182 # range is [0,1]. Default value is 0.
3184 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
3187 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
3188 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
3189 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
3190 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
3191 # cr_delay is set to 0.
3193 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
3194 "interrupt response is generated");
3196 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
3197 "interrupt response is generated");
3200 # lpfc_multi_ring_support: Determines how many rings to spread available
3201 # cmd/rsp IOCB entries across.
3202 # Value range is [1,2]. Default value is 1.
3204 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
3205 "SLI rings to spread IOCB entries across");
3208 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
3209 # identifies what rctl value to configure the additional ring for.
3210 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
3212 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
3213 255, "Identifies RCTL for additional ring configuration");
3216 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
3217 # identifies what type value to configure the additional ring for.
3218 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
3220 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
3221 255, "Identifies TYPE for additional ring configuration");
3224 # lpfc_fdmi_on: controls FDMI support.
3225 # 0 = no FDMI support
3226 # 1 = support FDMI without attribute of hostname
3227 # 2 = support FDMI with attribute of hostname
3228 # Value range [0,2]. Default value is 0.
3230 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
3233 # Specifies the maximum number of ELS cmds we can have outstanding (for
3234 # discovery). Value range is [1,64]. Default value = 32.
3236 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
3237 "during discovery");
3240 # lpfc_max_luns: maximum allowed LUN.
3241 # Value range is [0,65535]. Default value is 255.
3242 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
3244 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
3247 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
3248 # Value range is [1,255], default value is 10.
3250 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
3251 "Milliseconds driver will wait between polling FCP ring");
3254 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
3255 # support this feature
3258 # 2 = MSI-X enabled (default)
3259 # Value range is [0,2]. Default value is 2.
3261 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
3262 "MSI-X (2), if possible");
3265 # lpfc_fcp_imax: Set the maximum number of fast-path FCP interrupts per second
3267 # Value range is [636,651042]. Default value is 10000.
3269 LPFC_ATTR_R(fcp_imax, LPFC_FP_DEF_IMAX, LPFC_MIM_IMAX, LPFC_DMULT_CONST,
3270 "Set the maximum number of fast-path FCP interrupts per second");
3273 # lpfc_fcp_wq_count: Set the number of fast-path FCP work queues
3275 # Value range is [1,31]. Default value is 4.
3277 LPFC_ATTR_R(fcp_wq_count, LPFC_FP_WQN_DEF, LPFC_FP_WQN_MIN, LPFC_FP_WQN_MAX,
3278 "Set the number of fast-path FCP work queues, if possible");
3281 # lpfc_fcp_eq_count: Set the number of fast-path FCP event queues
3283 # Value range is [1,7]. Default value is 1.
3285 LPFC_ATTR_R(fcp_eq_count, LPFC_FP_EQN_DEF, LPFC_FP_EQN_MIN, LPFC_FP_EQN_MAX,
3286 "Set the number of fast-path FCP event queues, if possible");
3289 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
3290 # 0 = HBA resets disabled
3291 # 1 = HBA resets enabled (default)
3292 # Value range is [0,1]. Default value is 1.
3294 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
3297 # lpfc_enable_hba_heartbeat: Enable HBA heartbeat timer..
3298 # 0 = HBA Heartbeat disabled
3299 # 1 = HBA Heartbeat enabled (default)
3300 # Value range is [0,1]. Default value is 1.
3302 LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat.");
3305 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
3306 # 0 = BlockGuard disabled (default)
3307 # 1 = BlockGuard enabled
3308 # Value range is [0,1]. Default value is 0.
3310 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
3314 # - Bit mask of host protection capabilities used to register with the
3316 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
3317 # - Allows you to ultimately specify which profiles to use
3318 # - Default will result in registering capabilities for all profiles.
3321 unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION;
3323 module_param(lpfc_prot_mask, uint, 0);
3324 MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
3327 # lpfc_prot_guard: i
3328 # - Bit mask of protection guard types to register with the SCSI mid-layer
3329 # - Guard types are currently either 1) IP checksum 2) T10-DIF CRC
3330 # - Allows you to ultimately specify which profiles to use
3331 # - Default will result in registering capabilities for all guard types
3334 unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
3335 module_param(lpfc_prot_guard, byte, 0);
3336 MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
3340 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
3341 * This value can be set to values between 64 and 256. The default value is
3342 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
3343 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
3345 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
3346 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
3348 LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_PROT_SG_SEG_CNT,
3349 LPFC_DEFAULT_PROT_SG_SEG_CNT, LPFC_MAX_PROT_SG_SEG_CNT,
3350 "Max Protection Scatter Gather Segment Count");
3352 struct device_attribute *lpfc_hba_attrs[] = {
3354 &dev_attr_bg_guard_err,
3355 &dev_attr_bg_apptag_err,
3356 &dev_attr_bg_reftag_err,
3358 &dev_attr_serialnum,
3359 &dev_attr_modeldesc,
3360 &dev_attr_modelname,
3361 &dev_attr_programtype,
3365 &dev_attr_option_rom_version,
3366 &dev_attr_link_state,
3367 &dev_attr_num_discovered_ports,
3368 &dev_attr_menlo_mgmt_mode,
3369 &dev_attr_lpfc_drvr_version,
3370 &dev_attr_lpfc_enable_fip,
3371 &dev_attr_lpfc_temp_sensor,
3372 &dev_attr_lpfc_log_verbose,
3373 &dev_attr_lpfc_lun_queue_depth,
3374 &dev_attr_lpfc_tgt_queue_depth,
3375 &dev_attr_lpfc_hba_queue_depth,
3376 &dev_attr_lpfc_peer_port_login,
3377 &dev_attr_lpfc_nodev_tmo,
3378 &dev_attr_lpfc_devloss_tmo,
3379 &dev_attr_lpfc_fcp_class,
3380 &dev_attr_lpfc_use_adisc,
3381 &dev_attr_lpfc_ack0,
3382 &dev_attr_lpfc_topology,
3383 &dev_attr_lpfc_scan_down,
3384 &dev_attr_lpfc_link_speed,
3385 &dev_attr_lpfc_cr_delay,
3386 &dev_attr_lpfc_cr_count,
3387 &dev_attr_lpfc_multi_ring_support,
3388 &dev_attr_lpfc_multi_ring_rctl,
3389 &dev_attr_lpfc_multi_ring_type,
3390 &dev_attr_lpfc_fdmi_on,
3391 &dev_attr_lpfc_max_luns,
3392 &dev_attr_lpfc_enable_npiv,
3393 &dev_attr_nport_evt_cnt,
3394 &dev_attr_board_mode,
3401 &dev_attr_npiv_info,
3402 &dev_attr_issue_reset,
3403 &dev_attr_lpfc_poll,
3404 &dev_attr_lpfc_poll_tmo,
3405 &dev_attr_lpfc_use_msi,
3406 &dev_attr_lpfc_fcp_imax,
3407 &dev_attr_lpfc_fcp_wq_count,
3408 &dev_attr_lpfc_fcp_eq_count,
3409 &dev_attr_lpfc_enable_bg,
3410 &dev_attr_lpfc_soft_wwnn,
3411 &dev_attr_lpfc_soft_wwpn,
3412 &dev_attr_lpfc_soft_wwn_enable,
3413 &dev_attr_lpfc_enable_hba_reset,
3414 &dev_attr_lpfc_enable_hba_heartbeat,
3415 &dev_attr_lpfc_sg_seg_cnt,
3416 &dev_attr_lpfc_max_scsicmpl_time,
3417 &dev_attr_lpfc_stat_data_ctrl,
3418 &dev_attr_lpfc_prot_sg_seg_cnt,
3419 &dev_attr_lpfc_aer_support,
3420 &dev_attr_lpfc_aer_state_cleanup,
3421 &dev_attr_lpfc_suppress_link_up,
3422 &dev_attr_lpfc_iocb_cnt,
3425 &dev_attr_txcmplq_hw,
3426 &dev_attr_lpfc_fips_level,
3427 &dev_attr_lpfc_fips_rev,
3431 struct device_attribute *lpfc_vport_attrs[] = {
3433 &dev_attr_link_state,
3434 &dev_attr_num_discovered_ports,
3435 &dev_attr_lpfc_drvr_version,
3436 &dev_attr_lpfc_log_verbose,
3437 &dev_attr_lpfc_lun_queue_depth,
3438 &dev_attr_lpfc_tgt_queue_depth,
3439 &dev_attr_lpfc_nodev_tmo,
3440 &dev_attr_lpfc_devloss_tmo,
3441 &dev_attr_lpfc_hba_queue_depth,
3442 &dev_attr_lpfc_peer_port_login,
3443 &dev_attr_lpfc_restrict_login,
3444 &dev_attr_lpfc_fcp_class,
3445 &dev_attr_lpfc_use_adisc,
3446 &dev_attr_lpfc_fdmi_on,
3447 &dev_attr_lpfc_max_luns,
3448 &dev_attr_nport_evt_cnt,
3449 &dev_attr_npiv_info,
3450 &dev_attr_lpfc_enable_da_id,
3451 &dev_attr_lpfc_max_scsicmpl_time,
3452 &dev_attr_lpfc_stat_data_ctrl,
3453 &dev_attr_lpfc_static_vport,
3454 &dev_attr_lpfc_fips_level,
3455 &dev_attr_lpfc_fips_rev,
3460 * sysfs_ctlreg_write - Write method for writing to ctlreg
3461 * @filp: open sysfs file
3462 * @kobj: kernel kobject that contains the kernel class device.
3463 * @bin_attr: kernel attributes passed to us.
3464 * @buf: contains the data to be written to the adapter IOREG space.
3465 * @off: offset into buffer to beginning of data.
3466 * @count: bytes to transfer.
3469 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
3470 * Uses the adapter io control registers to send buf contents to the adapter.
3473 * -ERANGE off and count combo out of range
3474 * -EINVAL off, count or buff address invalid
3475 * -EPERM adapter is offline
3476 * value of count, buf contents written
3479 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
3480 struct bin_attribute *bin_attr,
3481 char *buf, loff_t off, size_t count)
3484 struct device *dev = container_of(kobj, struct device, kobj);
3485 struct Scsi_Host *shost = class_to_shost(dev);
3486 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3487 struct lpfc_hba *phba = vport->phba;
3489 if (phba->sli_rev >= LPFC_SLI_REV4)
3492 if ((off + count) > FF_REG_AREA_SIZE)
3495 if (count == 0) return 0;
3497 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3500 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3504 spin_lock_irq(&phba->hbalock);
3505 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
3506 writel(*((uint32_t *)(buf + buf_off)),
3507 phba->ctrl_regs_memmap_p + off + buf_off);
3509 spin_unlock_irq(&phba->hbalock);
3515 * sysfs_ctlreg_read - Read method for reading from ctlreg
3516 * @filp: open sysfs file
3517 * @kobj: kernel kobject that contains the kernel class device.
3518 * @bin_attr: kernel attributes passed to us.
3519 * @buf: if successful contains the data from the adapter IOREG space.
3520 * @off: offset into buffer to beginning of data.
3521 * @count: bytes to transfer.
3524 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
3525 * Uses the adapter io control registers to read data into buf.
3528 * -ERANGE off and count combo out of range
3529 * -EINVAL off, count or buff address invalid
3530 * value of count, buf contents read
3533 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
3534 struct bin_attribute *bin_attr,
3535 char *buf, loff_t off, size_t count)
3539 struct device *dev = container_of(kobj, struct device, kobj);
3540 struct Scsi_Host *shost = class_to_shost(dev);
3541 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3542 struct lpfc_hba *phba = vport->phba;
3544 if (phba->sli_rev >= LPFC_SLI_REV4)
3547 if (off > FF_REG_AREA_SIZE)
3550 if ((off + count) > FF_REG_AREA_SIZE)
3551 count = FF_REG_AREA_SIZE - off;
3553 if (count == 0) return 0;
3555 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3558 spin_lock_irq(&phba->hbalock);
3560 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
3561 tmp_ptr = (uint32_t *)(buf + buf_off);
3562 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
3565 spin_unlock_irq(&phba->hbalock);
3570 static struct bin_attribute sysfs_ctlreg_attr = {
3573 .mode = S_IRUSR | S_IWUSR,
3576 .read = sysfs_ctlreg_read,
3577 .write = sysfs_ctlreg_write,
3581 * sysfs_mbox_idle - frees the sysfs mailbox
3582 * @phba: lpfc_hba pointer
3585 sysfs_mbox_idle(struct lpfc_hba *phba)
3587 phba->sysfs_mbox.state = SMBOX_IDLE;
3588 phba->sysfs_mbox.offset = 0;
3590 if (phba->sysfs_mbox.mbox) {
3591 mempool_free(phba->sysfs_mbox.mbox,
3592 phba->mbox_mem_pool);
3593 phba->sysfs_mbox.mbox = NULL;
3598 * sysfs_mbox_write - Write method for writing information via mbox
3599 * @filp: open sysfs file
3600 * @kobj: kernel kobject that contains the kernel class device.
3601 * @bin_attr: kernel attributes passed to us.
3602 * @buf: contains the data to be written to sysfs mbox.
3603 * @off: offset into buffer to beginning of data.
3604 * @count: bytes to transfer.
3607 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3608 * Uses the sysfs mbox to send buf contents to the adapter.
3611 * -ERANGE off and count combo out of range
3612 * -EINVAL off, count or buff address invalid
3613 * zero if count is zero
3614 * -EPERM adapter is offline
3615 * -ENOMEM failed to allocate memory for the mail box
3616 * -EAGAIN offset, state or mbox is NULL
3617 * count number of bytes transferred
3620 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
3621 struct bin_attribute *bin_attr,
3622 char *buf, loff_t off, size_t count)
3624 struct device *dev = container_of(kobj, struct device, kobj);
3625 struct Scsi_Host *shost = class_to_shost(dev);
3626 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3627 struct lpfc_hba *phba = vport->phba;
3628 struct lpfcMboxq *mbox = NULL;
3630 if ((count + off) > MAILBOX_CMD_SIZE)
3633 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3640 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3643 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
3646 spin_lock_irq(&phba->hbalock);
3649 if (phba->sysfs_mbox.mbox)
3650 mempool_free(mbox, phba->mbox_mem_pool);
3652 phba->sysfs_mbox.mbox = mbox;
3653 phba->sysfs_mbox.state = SMBOX_WRITING;
3655 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
3656 phba->sysfs_mbox.offset != off ||
3657 phba->sysfs_mbox.mbox == NULL) {
3658 sysfs_mbox_idle(phba);
3659 spin_unlock_irq(&phba->hbalock);
3664 memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off,
3667 phba->sysfs_mbox.offset = off + count;
3669 spin_unlock_irq(&phba->hbalock);
3675 * sysfs_mbox_read - Read method for reading information via mbox
3676 * @filp: open sysfs file
3677 * @kobj: kernel kobject that contains the kernel class device.
3678 * @bin_attr: kernel attributes passed to us.
3679 * @buf: contains the data to be read from sysfs mbox.
3680 * @off: offset into buffer to beginning of data.
3681 * @count: bytes to transfer.
3684 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3685 * Uses the sysfs mbox to receive data from to the adapter.
3688 * -ERANGE off greater than mailbox command size
3689 * -EINVAL off, count or buff address invalid
3690 * zero if off and count are zero
3691 * -EACCES adapter over temp
3692 * -EPERM garbage can value to catch a multitude of errors
3693 * -EAGAIN management IO not permitted, state or off error
3694 * -ETIME mailbox timeout
3695 * -ENODEV mailbox error
3696 * count number of bytes transferred
3699 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
3700 struct bin_attribute *bin_attr,
3701 char *buf, loff_t off, size_t count)
3703 struct device *dev = container_of(kobj, struct device, kobj);
3704 struct Scsi_Host *shost = class_to_shost(dev);
3705 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3706 struct lpfc_hba *phba = vport->phba;
3710 if (off > MAILBOX_CMD_SIZE)
3713 if ((count + off) > MAILBOX_CMD_SIZE)
3714 count = MAILBOX_CMD_SIZE - off;
3716 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3719 if (off && count == 0)
3722 spin_lock_irq(&phba->hbalock);
3724 if (phba->over_temp_state == HBA_OVER_TEMP) {
3725 sysfs_mbox_idle(phba);
3726 spin_unlock_irq(&phba->hbalock);
3731 phba->sysfs_mbox.state == SMBOX_WRITING &&
3732 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
3733 pmb = &phba->sysfs_mbox.mbox->u.mb;
3734 switch (pmb->mbxCommand) {
3738 case MBX_CONFIG_LINK:
3739 case MBX_CONFIG_RING:
3740 case MBX_RESET_RING:
3741 case MBX_UNREG_LOGIN:
3743 case MBX_DUMP_CONTEXT:
3748 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3749 printk(KERN_WARNING "mbox_read:Command 0x%x "
3750 "is illegal in on-line state\n",
3752 sysfs_mbox_idle(phba);
3753 spin_unlock_irq(&phba->hbalock);
3757 case MBX_WRITE_VPARMS:
3760 case MBX_READ_CONFIG:
3761 case MBX_READ_RCONFIG:
3762 case MBX_READ_STATUS:
3765 case MBX_READ_LNK_STAT:
3766 case MBX_DUMP_MEMORY:
3768 case MBX_UPDATE_CFG:
3769 case MBX_KILL_BOARD:
3771 case MBX_LOAD_EXP_ROM:
3773 case MBX_DEL_LD_ENTRY:
3774 case MBX_SET_VARIABLE:
3776 case MBX_PORT_CAPABILITIES:
3777 case MBX_PORT_IOV_CONTROL:
3779 case MBX_READ_SPARM64:
3783 case MBX_REG_LOGIN64:
3784 case MBX_CONFIG_PORT:
3785 case MBX_RUN_BIU_DIAG:
3786 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
3788 sysfs_mbox_idle(phba);
3789 spin_unlock_irq(&phba->hbalock);
3792 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
3794 sysfs_mbox_idle(phba);
3795 spin_unlock_irq(&phba->hbalock);
3799 /* If HBA encountered an error attention, allow only DUMP
3800 * or RESTART mailbox commands until the HBA is restarted.
3802 if (phba->pport->stopped &&
3803 pmb->mbxCommand != MBX_DUMP_MEMORY &&
3804 pmb->mbxCommand != MBX_RESTART &&
3805 pmb->mbxCommand != MBX_WRITE_VPARMS &&
3806 pmb->mbxCommand != MBX_WRITE_WWN)
3807 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
3808 "1259 mbox: Issued mailbox cmd "
3809 "0x%x while in stopped state.\n",
3812 phba->sysfs_mbox.mbox->vport = vport;
3814 /* Don't allow mailbox commands to be sent when blocked
3815 * or when in the middle of discovery
3817 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
3818 sysfs_mbox_idle(phba);
3819 spin_unlock_irq(&phba->hbalock);
3823 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
3824 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
3826 spin_unlock_irq(&phba->hbalock);
3827 rc = lpfc_sli_issue_mbox (phba,
3828 phba->sysfs_mbox.mbox,
3830 spin_lock_irq(&phba->hbalock);
3833 spin_unlock_irq(&phba->hbalock);
3834 rc = lpfc_sli_issue_mbox_wait (phba,
3835 phba->sysfs_mbox.mbox,
3836 lpfc_mbox_tmo_val(phba, pmb->mbxCommand) * HZ);
3837 spin_lock_irq(&phba->hbalock);
3840 if (rc != MBX_SUCCESS) {
3841 if (rc == MBX_TIMEOUT) {
3842 phba->sysfs_mbox.mbox = NULL;
3844 sysfs_mbox_idle(phba);
3845 spin_unlock_irq(&phba->hbalock);
3846 return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
3848 phba->sysfs_mbox.state = SMBOX_READING;
3850 else if (phba->sysfs_mbox.offset != off ||
3851 phba->sysfs_mbox.state != SMBOX_READING) {
3852 printk(KERN_WARNING "mbox_read: Bad State\n");
3853 sysfs_mbox_idle(phba);
3854 spin_unlock_irq(&phba->hbalock);
3858 memcpy(buf, (uint8_t *) &pmb + off, count);
3860 phba->sysfs_mbox.offset = off + count;
3862 if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
3863 sysfs_mbox_idle(phba);
3865 spin_unlock_irq(&phba->hbalock);
3870 static struct bin_attribute sysfs_mbox_attr = {
3873 .mode = S_IRUSR | S_IWUSR,
3875 .size = MAILBOX_CMD_SIZE,
3876 .read = sysfs_mbox_read,
3877 .write = sysfs_mbox_write,
3881 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
3882 * @vport: address of lpfc vport structure.
3886 * error return code from sysfs_create_bin_file()
3889 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
3891 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3894 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3895 &sysfs_drvr_stat_data_attr);
3897 /* Virtual ports do not need ctrl_reg and mbox */
3898 if (error || vport->port_type == LPFC_NPIV_PORT)
3901 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3902 &sysfs_ctlreg_attr);
3904 goto out_remove_stat_attr;
3906 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3909 goto out_remove_ctlreg_attr;
3912 out_remove_ctlreg_attr:
3913 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
3914 out_remove_stat_attr:
3915 sysfs_remove_bin_file(&shost->shost_dev.kobj,
3916 &sysfs_drvr_stat_data_attr);
3922 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
3923 * @vport: address of lpfc vport structure.
3926 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
3928 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3929 sysfs_remove_bin_file(&shost->shost_dev.kobj,
3930 &sysfs_drvr_stat_data_attr);
3931 /* Virtual ports do not need ctrl_reg and mbox */
3932 if (vport->port_type == LPFC_NPIV_PORT)
3934 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
3935 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
3940 * Dynamic FC Host Attributes Support
3944 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
3945 * @shost: kernel scsi host pointer.
3948 lpfc_get_host_port_id(struct Scsi_Host *shost)
3950 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3952 /* note: fc_myDID already in cpu endianness */
3953 fc_host_port_id(shost) = vport->fc_myDID;
3957 * lpfc_get_host_port_type - Set the value of the scsi host port type
3958 * @shost: kernel scsi host pointer.
3961 lpfc_get_host_port_type(struct Scsi_Host *shost)
3963 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3964 struct lpfc_hba *phba = vport->phba;
3966 spin_lock_irq(shost->host_lock);
3968 if (vport->port_type == LPFC_NPIV_PORT) {
3969 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
3970 } else if (lpfc_is_link_up(phba)) {
3971 if (phba->fc_topology == TOPOLOGY_LOOP) {
3972 if (vport->fc_flag & FC_PUBLIC_LOOP)
3973 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
3975 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
3977 if (vport->fc_flag & FC_FABRIC)
3978 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
3980 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
3983 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
3985 spin_unlock_irq(shost->host_lock);
3989 * lpfc_get_host_port_state - Set the value of the scsi host port state
3990 * @shost: kernel scsi host pointer.
3993 lpfc_get_host_port_state(struct Scsi_Host *shost)
3995 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3996 struct lpfc_hba *phba = vport->phba;
3998 spin_lock_irq(shost->host_lock);
4000 if (vport->fc_flag & FC_OFFLINE_MODE)
4001 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
4003 switch (phba->link_state) {
4004 case LPFC_LINK_UNKNOWN:
4005 case LPFC_LINK_DOWN:
4006 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
4010 case LPFC_HBA_READY:
4011 /* Links up, beyond this port_type reports state */
4012 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
4014 case LPFC_HBA_ERROR:
4015 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
4018 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
4023 spin_unlock_irq(shost->host_lock);
4027 * lpfc_get_host_speed - Set the value of the scsi host speed
4028 * @shost: kernel scsi host pointer.
4031 lpfc_get_host_speed(struct Scsi_Host *shost)
4033 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4034 struct lpfc_hba *phba = vport->phba;
4036 spin_lock_irq(shost->host_lock);
4038 if (lpfc_is_link_up(phba)) {
4039 switch(phba->fc_linkspeed) {
4041 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
4044 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
4047 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
4050 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
4053 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
4056 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
4060 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
4062 spin_unlock_irq(shost->host_lock);
4066 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
4067 * @shost: kernel scsi host pointer.
4070 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
4072 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4073 struct lpfc_hba *phba = vport->phba;
4076 spin_lock_irq(shost->host_lock);
4078 if ((vport->fc_flag & FC_FABRIC) ||
4079 ((phba->fc_topology == TOPOLOGY_LOOP) &&
4080 (vport->fc_flag & FC_PUBLIC_LOOP)))
4081 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
4083 /* fabric is local port if there is no F/FL_Port */
4086 spin_unlock_irq(shost->host_lock);
4088 fc_host_fabric_name(shost) = node_name;
4092 * lpfc_get_stats - Return statistical information about the adapter
4093 * @shost: kernel scsi host pointer.
4096 * NULL on error for link down, no mbox pool, sli2 active,
4097 * management not allowed, memory allocation error, or mbox error.
4101 * address of the adapter host statistics
4103 static struct fc_host_statistics *
4104 lpfc_get_stats(struct Scsi_Host *shost)
4106 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4107 struct lpfc_hba *phba = vport->phba;
4108 struct lpfc_sli *psli = &phba->sli;
4109 struct fc_host_statistics *hs = &phba->link_stats;
4110 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
4111 LPFC_MBOXQ_t *pmboxq;
4113 unsigned long seconds;
4117 * prevent udev from issuing mailbox commands until the port is
4120 if (phba->link_state < LPFC_LINK_DOWN ||
4121 !phba->mbox_mem_pool ||
4122 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
4125 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4128 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4131 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
4133 pmb = &pmboxq->u.mb;
4134 pmb->mbxCommand = MBX_READ_STATUS;
4135 pmb->mbxOwner = OWN_HOST;
4136 pmboxq->context1 = NULL;
4137 pmboxq->vport = vport;
4139 if (vport->fc_flag & FC_OFFLINE_MODE)
4140 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4142 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4144 if (rc != MBX_SUCCESS) {
4145 if (rc != MBX_TIMEOUT)
4146 mempool_free(pmboxq, phba->mbox_mem_pool);
4150 memset(hs, 0, sizeof (struct fc_host_statistics));
4152 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
4153 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
4154 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
4155 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
4157 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
4158 pmb->mbxCommand = MBX_READ_LNK_STAT;
4159 pmb->mbxOwner = OWN_HOST;
4160 pmboxq->context1 = NULL;
4161 pmboxq->vport = vport;
4163 if (vport->fc_flag & FC_OFFLINE_MODE)
4164 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4166 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4168 if (rc != MBX_SUCCESS) {
4169 if (rc != MBX_TIMEOUT)
4170 mempool_free(pmboxq, phba->mbox_mem_pool);
4174 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
4175 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
4176 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
4177 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
4178 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
4179 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
4180 hs->error_frames = pmb->un.varRdLnk.crcCnt;
4182 hs->link_failure_count -= lso->link_failure_count;
4183 hs->loss_of_sync_count -= lso->loss_of_sync_count;
4184 hs->loss_of_signal_count -= lso->loss_of_signal_count;
4185 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
4186 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
4187 hs->invalid_crc_count -= lso->invalid_crc_count;
4188 hs->error_frames -= lso->error_frames;
4190 if (phba->hba_flag & HBA_FCOE_SUPPORT) {
4192 hs->nos_count = (phba->link_events >> 1);
4193 hs->nos_count -= lso->link_events;
4194 } else if (phba->fc_topology == TOPOLOGY_LOOP) {
4195 hs->lip_count = (phba->fc_eventTag >> 1);
4196 hs->lip_count -= lso->link_events;
4200 hs->nos_count = (phba->fc_eventTag >> 1);
4201 hs->nos_count -= lso->link_events;
4204 hs->dumped_frames = -1;
4206 seconds = get_seconds();
4207 if (seconds < psli->stats_start)
4208 hs->seconds_since_last_reset = seconds +
4209 ((unsigned long)-1 - psli->stats_start);
4211 hs->seconds_since_last_reset = seconds - psli->stats_start;
4213 mempool_free(pmboxq, phba->mbox_mem_pool);
4219 * lpfc_reset_stats - Copy the adapter link stats information
4220 * @shost: kernel scsi host pointer.
4223 lpfc_reset_stats(struct Scsi_Host *shost)
4225 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4226 struct lpfc_hba *phba = vport->phba;
4227 struct lpfc_sli *psli = &phba->sli;
4228 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
4229 LPFC_MBOXQ_t *pmboxq;
4233 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4236 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4239 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4241 pmb = &pmboxq->u.mb;
4242 pmb->mbxCommand = MBX_READ_STATUS;
4243 pmb->mbxOwner = OWN_HOST;
4244 pmb->un.varWords[0] = 0x1; /* reset request */
4245 pmboxq->context1 = NULL;
4246 pmboxq->vport = vport;
4248 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4249 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4250 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4252 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4254 if (rc != MBX_SUCCESS) {
4255 if (rc != MBX_TIMEOUT)
4256 mempool_free(pmboxq, phba->mbox_mem_pool);
4260 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4261 pmb->mbxCommand = MBX_READ_LNK_STAT;
4262 pmb->mbxOwner = OWN_HOST;
4263 pmboxq->context1 = NULL;
4264 pmboxq->vport = vport;
4266 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4267 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4268 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4270 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4272 if (rc != MBX_SUCCESS) {
4273 if (rc != MBX_TIMEOUT)
4274 mempool_free( pmboxq, phba->mbox_mem_pool);
4278 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
4279 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
4280 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
4281 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
4282 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
4283 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
4284 lso->error_frames = pmb->un.varRdLnk.crcCnt;
4285 if (phba->hba_flag & HBA_FCOE_SUPPORT)
4286 lso->link_events = (phba->link_events >> 1);
4288 lso->link_events = (phba->fc_eventTag >> 1);
4290 psli->stats_start = get_seconds();
4292 mempool_free(pmboxq, phba->mbox_mem_pool);
4298 * The LPFC driver treats linkdown handling as target loss events so there
4299 * are no sysfs handlers for link_down_tmo.
4303 * lpfc_get_node_by_target - Return the nodelist for a target
4304 * @starget: kernel scsi target pointer.
4307 * address of the node list if found
4308 * NULL target not found
4310 static struct lpfc_nodelist *
4311 lpfc_get_node_by_target(struct scsi_target *starget)
4313 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
4314 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4315 struct lpfc_nodelist *ndlp;
4317 spin_lock_irq(shost->host_lock);
4318 /* Search for this, mapped, target ID */
4319 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4320 if (NLP_CHK_NODE_ACT(ndlp) &&
4321 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
4322 starget->id == ndlp->nlp_sid) {
4323 spin_unlock_irq(shost->host_lock);
4327 spin_unlock_irq(shost->host_lock);
4332 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
4333 * @starget: kernel scsi target pointer.
4336 lpfc_get_starget_port_id(struct scsi_target *starget)
4338 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4340 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
4344 * lpfc_get_starget_node_name - Set the target node name
4345 * @starget: kernel scsi target pointer.
4347 * Description: Set the target node name to the ndlp node name wwn or zero.
4350 lpfc_get_starget_node_name(struct scsi_target *starget)
4352 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4354 fc_starget_node_name(starget) =
4355 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
4359 * lpfc_get_starget_port_name - Set the target port name
4360 * @starget: kernel scsi target pointer.
4362 * Description: set the target port name to the ndlp port name wwn or zero.
4365 lpfc_get_starget_port_name(struct scsi_target *starget)
4367 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4369 fc_starget_port_name(starget) =
4370 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
4374 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
4375 * @rport: fc rport address.
4376 * @timeout: new value for dev loss tmo.
4379 * If timeout is non zero set the dev_loss_tmo to timeout, else set
4380 * dev_loss_tmo to one.
4383 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
4386 rport->dev_loss_tmo = timeout;
4388 rport->dev_loss_tmo = 1;
4392 * lpfc_rport_show_function - Return rport target information
4395 * Macro that uses field to generate a function with the name lpfc_show_rport_
4397 * lpfc_show_rport_##field: returns the bytes formatted in buf
4398 * @cdev: class converted to an fc_rport.
4399 * @buf: on return contains the target_field or zero.
4401 * Returns: size of formatted string.
4403 #define lpfc_rport_show_function(field, format_string, sz, cast) \
4405 lpfc_show_rport_##field (struct device *dev, \
4406 struct device_attribute *attr, \
4409 struct fc_rport *rport = transport_class_to_rport(dev); \
4410 struct lpfc_rport_data *rdata = rport->hostdata; \
4411 return snprintf(buf, sz, format_string, \
4412 (rdata->target) ? cast rdata->target->field : 0); \
4415 #define lpfc_rport_rd_attr(field, format_string, sz) \
4416 lpfc_rport_show_function(field, format_string, sz, ) \
4417 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
4420 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
4421 * @fc_vport: The fc_vport who's symbolic name has been changed.
4424 * This function is called by the transport after the @fc_vport's symbolic name
4425 * has been changed. This function re-registers the symbolic name with the
4426 * switch to propogate the change into the fabric if the vport is active.
4429 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
4431 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
4433 if (vport->port_state == LPFC_VPORT_READY)
4434 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
4438 * lpfc_hba_log_verbose_init - Set hba's log verbose level
4439 * @phba: Pointer to lpfc_hba struct.
4441 * This function is called by the lpfc_get_cfgparam() routine to set the
4442 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
4443 * log messsage according to the module's lpfc_log_verbose parameter setting
4444 * before hba port or vport created.
4447 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
4449 phba->cfg_log_verbose = verbose;
4452 struct fc_function_template lpfc_transport_functions = {
4453 /* fixed attributes the driver supports */
4454 .show_host_node_name = 1,
4455 .show_host_port_name = 1,
4456 .show_host_supported_classes = 1,
4457 .show_host_supported_fc4s = 1,
4458 .show_host_supported_speeds = 1,
4459 .show_host_maxframe_size = 1,
4460 .show_host_symbolic_name = 1,
4462 /* dynamic attributes the driver supports */
4463 .get_host_port_id = lpfc_get_host_port_id,
4464 .show_host_port_id = 1,
4466 .get_host_port_type = lpfc_get_host_port_type,
4467 .show_host_port_type = 1,
4469 .get_host_port_state = lpfc_get_host_port_state,
4470 .show_host_port_state = 1,
4472 /* active_fc4s is shown but doesn't change (thus no get function) */
4473 .show_host_active_fc4s = 1,
4475 .get_host_speed = lpfc_get_host_speed,
4476 .show_host_speed = 1,
4478 .get_host_fabric_name = lpfc_get_host_fabric_name,
4479 .show_host_fabric_name = 1,
4482 * The LPFC driver treats linkdown handling as target loss events
4483 * so there are no sysfs handlers for link_down_tmo.
4486 .get_fc_host_stats = lpfc_get_stats,
4487 .reset_fc_host_stats = lpfc_reset_stats,
4489 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
4490 .show_rport_maxframe_size = 1,
4491 .show_rport_supported_classes = 1,
4493 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
4494 .show_rport_dev_loss_tmo = 1,
4496 .get_starget_port_id = lpfc_get_starget_port_id,
4497 .show_starget_port_id = 1,
4499 .get_starget_node_name = lpfc_get_starget_node_name,
4500 .show_starget_node_name = 1,
4502 .get_starget_port_name = lpfc_get_starget_port_name,
4503 .show_starget_port_name = 1,
4505 .issue_fc_host_lip = lpfc_issue_lip,
4506 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
4507 .terminate_rport_io = lpfc_terminate_rport_io,
4509 .dd_fcvport_size = sizeof(struct lpfc_vport *),
4511 .vport_disable = lpfc_vport_disable,
4513 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4515 .bsg_request = lpfc_bsg_request,
4516 .bsg_timeout = lpfc_bsg_timeout,
4519 struct fc_function_template lpfc_vport_transport_functions = {
4520 /* fixed attributes the driver supports */
4521 .show_host_node_name = 1,
4522 .show_host_port_name = 1,
4523 .show_host_supported_classes = 1,
4524 .show_host_supported_fc4s = 1,
4525 .show_host_supported_speeds = 1,
4526 .show_host_maxframe_size = 1,
4527 .show_host_symbolic_name = 1,
4529 /* dynamic attributes the driver supports */
4530 .get_host_port_id = lpfc_get_host_port_id,
4531 .show_host_port_id = 1,
4533 .get_host_port_type = lpfc_get_host_port_type,
4534 .show_host_port_type = 1,
4536 .get_host_port_state = lpfc_get_host_port_state,
4537 .show_host_port_state = 1,
4539 /* active_fc4s is shown but doesn't change (thus no get function) */
4540 .show_host_active_fc4s = 1,
4542 .get_host_speed = lpfc_get_host_speed,
4543 .show_host_speed = 1,
4545 .get_host_fabric_name = lpfc_get_host_fabric_name,
4546 .show_host_fabric_name = 1,
4549 * The LPFC driver treats linkdown handling as target loss events
4550 * so there are no sysfs handlers for link_down_tmo.
4553 .get_fc_host_stats = lpfc_get_stats,
4554 .reset_fc_host_stats = lpfc_reset_stats,
4556 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
4557 .show_rport_maxframe_size = 1,
4558 .show_rport_supported_classes = 1,
4560 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
4561 .show_rport_dev_loss_tmo = 1,
4563 .get_starget_port_id = lpfc_get_starget_port_id,
4564 .show_starget_port_id = 1,
4566 .get_starget_node_name = lpfc_get_starget_node_name,
4567 .show_starget_node_name = 1,
4569 .get_starget_port_name = lpfc_get_starget_port_name,
4570 .show_starget_port_name = 1,
4572 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
4573 .terminate_rport_io = lpfc_terminate_rport_io,
4575 .vport_disable = lpfc_vport_disable,
4577 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4581 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
4582 * @phba: lpfc_hba pointer.
4585 lpfc_get_cfgparam(struct lpfc_hba *phba)
4587 lpfc_cr_delay_init(phba, lpfc_cr_delay);
4588 lpfc_cr_count_init(phba, lpfc_cr_count);
4589 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
4590 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
4591 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
4592 lpfc_ack0_init(phba, lpfc_ack0);
4593 lpfc_topology_init(phba, lpfc_topology);
4594 lpfc_link_speed_init(phba, lpfc_link_speed);
4595 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
4596 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
4597 lpfc_use_msi_init(phba, lpfc_use_msi);
4598 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
4599 lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count);
4600 lpfc_fcp_eq_count_init(phba, lpfc_fcp_eq_count);
4601 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
4602 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
4603 lpfc_enable_bg_init(phba, lpfc_enable_bg);
4604 if (phba->sli_rev == LPFC_SLI_REV4)
4607 phba->cfg_poll = lpfc_poll;
4608 phba->cfg_soft_wwnn = 0L;
4609 phba->cfg_soft_wwpn = 0L;
4610 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
4611 lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
4612 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
4613 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
4614 lpfc_aer_support_init(phba, lpfc_aer_support);
4615 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
4616 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
4621 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
4622 * @vport: lpfc_vport pointer.
4625 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
4627 lpfc_log_verbose_init(vport, lpfc_log_verbose);
4628 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
4629 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
4630 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
4631 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
4632 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
4633 lpfc_restrict_login_init(vport, lpfc_restrict_login);
4634 lpfc_fcp_class_init(vport, lpfc_fcp_class);
4635 lpfc_use_adisc_init(vport, lpfc_use_adisc);
4636 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
4637 lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
4638 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
4639 lpfc_max_luns_init(vport, lpfc_max_luns);
4640 lpfc_scan_down_init(vport, lpfc_scan_down);
4641 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);