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_param_show - Return a cfg attribute value in decimal
1246 * Macro that given an attr e.g. hba_queue_depth expands
1247 * into a function with the name lpfc_hba_queue_depth_show.
1249 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1250 * @dev: class device that is converted into a Scsi_host.
1251 * @attr: device attribute, not used.
1252 * @buf: on return contains the attribute value in decimal.
1254 * Returns: size of formatted string.
1256 #define lpfc_param_show(attr) \
1258 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1261 struct Scsi_Host *shost = class_to_shost(dev);\
1262 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1263 struct lpfc_hba *phba = vport->phba;\
1265 val = phba->cfg_##attr;\
1266 return snprintf(buf, PAGE_SIZE, "%d\n",\
1271 * lpfc_param_hex_show - Return a cfg attribute value in hex
1274 * Macro that given an attr e.g. hba_queue_depth expands
1275 * into a function with the name lpfc_hba_queue_depth_show
1277 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1278 * @dev: class device that is converted into a Scsi_host.
1279 * @attr: device attribute, not used.
1280 * @buf: on return contains the attribute value in hexadecimal.
1282 * Returns: size of formatted string.
1284 #define lpfc_param_hex_show(attr) \
1286 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1289 struct Scsi_Host *shost = class_to_shost(dev);\
1290 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1291 struct lpfc_hba *phba = vport->phba;\
1293 val = phba->cfg_##attr;\
1294 return snprintf(buf, PAGE_SIZE, "%#x\n",\
1299 * lpfc_param_init - Intializes a cfg attribute
1302 * Macro that given an attr e.g. hba_queue_depth expands
1303 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1304 * takes a default argument, a minimum and maximum argument.
1306 * lpfc_##attr##_init: Initializes an attribute.
1307 * @phba: pointer the the adapter structure.
1308 * @val: integer attribute value.
1310 * Validates the min and max values then sets the adapter config field
1311 * accordingly, or uses the default if out of range and prints an error message.
1315 * -EINVAL if default used
1317 #define lpfc_param_init(attr, default, minval, maxval) \
1319 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1321 if (val >= minval && val <= maxval) {\
1322 phba->cfg_##attr = val;\
1325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1326 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
1327 "allowed range is ["#minval", "#maxval"]\n", val); \
1328 phba->cfg_##attr = default;\
1333 * lpfc_param_set - Set a cfg attribute value
1336 * Macro that given an attr e.g. hba_queue_depth expands
1337 * into a function with the name lpfc_hba_queue_depth_set
1339 * lpfc_##attr##_set: Sets an attribute value.
1340 * @phba: pointer the the adapter structure.
1341 * @val: integer attribute value.
1344 * Validates the min and max values then sets the
1345 * adapter config field if in the valid range. prints error message
1346 * and does not set the parameter if invalid.
1350 * -EINVAL if val is invalid
1352 #define lpfc_param_set(attr, default, minval, maxval) \
1354 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1356 if (val >= minval && val <= maxval) {\
1357 phba->cfg_##attr = val;\
1360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1361 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
1362 "allowed range is ["#minval", "#maxval"]\n", val); \
1367 * lpfc_param_store - Set a vport attribute value
1370 * Macro that given an attr e.g. hba_queue_depth expands
1371 * into a function with the name lpfc_hba_queue_depth_store.
1373 * lpfc_##attr##_store: Set an sttribute value.
1374 * @dev: class device that is converted into a Scsi_host.
1375 * @attr: device attribute, not used.
1376 * @buf: contains the attribute value in ascii.
1380 * Convert the ascii text number to an integer, then
1381 * use the lpfc_##attr##_set function to set the value.
1384 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1385 * length of buffer upon success.
1387 #define lpfc_param_store(attr) \
1389 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1390 const char *buf, size_t count) \
1392 struct Scsi_Host *shost = class_to_shost(dev);\
1393 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1394 struct lpfc_hba *phba = vport->phba;\
1396 if (!isdigit(buf[0]))\
1398 if (sscanf(buf, "%i", &val) != 1)\
1400 if (lpfc_##attr##_set(phba, val) == 0) \
1401 return strlen(buf);\
1407 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1410 * Macro that given an attr e.g. hba_queue_depth expands
1411 * into a function with the name lpfc_hba_queue_depth_show
1413 * lpfc_##attr##_show: prints the attribute value in decimal.
1414 * @dev: class device that is converted into a Scsi_host.
1415 * @attr: device attribute, not used.
1416 * @buf: on return contains the attribute value in decimal.
1418 * Returns: length of formatted string.
1420 #define lpfc_vport_param_show(attr) \
1422 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1425 struct Scsi_Host *shost = class_to_shost(dev);\
1426 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1428 val = vport->cfg_##attr;\
1429 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
1433 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1436 * Macro that given an attr e.g.
1437 * hba_queue_depth expands into a function with the name
1438 * lpfc_hba_queue_depth_show
1440 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1441 * @dev: class device that is converted into a Scsi_host.
1442 * @attr: device attribute, not used.
1443 * @buf: on return contains the attribute value in hexadecimal.
1445 * Returns: length of formatted string.
1447 #define lpfc_vport_param_hex_show(attr) \
1449 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1452 struct Scsi_Host *shost = class_to_shost(dev);\
1453 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1455 val = vport->cfg_##attr;\
1456 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
1460 * lpfc_vport_param_init - Initialize a vport cfg attribute
1463 * Macro that given an attr e.g. hba_queue_depth expands
1464 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1465 * takes a default argument, a minimum and maximum argument.
1467 * lpfc_##attr##_init: validates the min and max values then sets the
1468 * adapter config field accordingly, or uses the default if out of range
1469 * and prints an error message.
1470 * @phba: pointer the the adapter structure.
1471 * @val: integer attribute value.
1475 * -EINVAL if default used
1477 #define lpfc_vport_param_init(attr, default, minval, maxval) \
1479 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1481 if (val >= minval && val <= maxval) {\
1482 vport->cfg_##attr = val;\
1485 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1486 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1487 "allowed range is ["#minval", "#maxval"]\n", val); \
1488 vport->cfg_##attr = default;\
1493 * lpfc_vport_param_set - Set a vport cfg attribute
1496 * Macro that given an attr e.g. hba_queue_depth expands
1497 * into a function with the name lpfc_hba_queue_depth_set
1499 * lpfc_##attr##_set: validates the min and max values then sets the
1500 * adapter config field if in the valid range. prints error message
1501 * and does not set the parameter if invalid.
1502 * @phba: pointer the the adapter structure.
1503 * @val: integer attribute value.
1507 * -EINVAL if val is invalid
1509 #define lpfc_vport_param_set(attr, default, minval, maxval) \
1511 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1513 if (val >= minval && val <= maxval) {\
1514 vport->cfg_##attr = val;\
1517 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1518 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1519 "allowed range is ["#minval", "#maxval"]\n", val); \
1524 * lpfc_vport_param_store - Set a vport attribute
1527 * Macro that given an attr e.g. hba_queue_depth
1528 * expands into a function with the name lpfc_hba_queue_depth_store
1530 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1531 * use the lpfc_##attr##_set function to set the value.
1532 * @cdev: class device that is converted into a Scsi_host.
1533 * @buf: contains the attribute value in decimal.
1537 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1538 * length of buffer upon success.
1540 #define lpfc_vport_param_store(attr) \
1542 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1543 const char *buf, size_t count) \
1545 struct Scsi_Host *shost = class_to_shost(dev);\
1546 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1548 if (!isdigit(buf[0]))\
1550 if (sscanf(buf, "%i", &val) != 1)\
1552 if (lpfc_##attr##_set(vport, val) == 0) \
1553 return strlen(buf);\
1559 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
1560 static uint lpfc_##name = defval;\
1561 module_param(lpfc_##name, uint, 0);\
1562 MODULE_PARM_DESC(lpfc_##name, desc);\
1563 lpfc_param_init(name, defval, minval, maxval)
1565 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
1566 static uint lpfc_##name = defval;\
1567 module_param(lpfc_##name, uint, 0);\
1568 MODULE_PARM_DESC(lpfc_##name, desc);\
1569 lpfc_param_show(name)\
1570 lpfc_param_init(name, defval, minval, maxval)\
1571 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1573 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
1574 static uint lpfc_##name = defval;\
1575 module_param(lpfc_##name, uint, 0);\
1576 MODULE_PARM_DESC(lpfc_##name, desc);\
1577 lpfc_param_show(name)\
1578 lpfc_param_init(name, defval, minval, maxval)\
1579 lpfc_param_set(name, defval, minval, maxval)\
1580 lpfc_param_store(name)\
1581 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1582 lpfc_##name##_show, lpfc_##name##_store)
1584 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1585 static uint lpfc_##name = defval;\
1586 module_param(lpfc_##name, uint, 0);\
1587 MODULE_PARM_DESC(lpfc_##name, desc);\
1588 lpfc_param_hex_show(name)\
1589 lpfc_param_init(name, defval, minval, maxval)\
1590 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1592 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1593 static uint lpfc_##name = defval;\
1594 module_param(lpfc_##name, uint, 0);\
1595 MODULE_PARM_DESC(lpfc_##name, desc);\
1596 lpfc_param_hex_show(name)\
1597 lpfc_param_init(name, defval, minval, maxval)\
1598 lpfc_param_set(name, defval, minval, maxval)\
1599 lpfc_param_store(name)\
1600 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1601 lpfc_##name##_show, lpfc_##name##_store)
1603 #define LPFC_VPORT_ATTR(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_vport_param_init(name, defval, minval, maxval)
1609 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
1610 static uint lpfc_##name = defval;\
1611 module_param(lpfc_##name, uint, 0);\
1612 MODULE_PARM_DESC(lpfc_##name, desc);\
1613 lpfc_vport_param_show(name)\
1614 lpfc_vport_param_init(name, defval, minval, maxval)\
1615 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1617 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
1618 static uint lpfc_##name = defval;\
1619 module_param(lpfc_##name, uint, 0);\
1620 MODULE_PARM_DESC(lpfc_##name, desc);\
1621 lpfc_vport_param_show(name)\
1622 lpfc_vport_param_init(name, defval, minval, maxval)\
1623 lpfc_vport_param_set(name, defval, minval, maxval)\
1624 lpfc_vport_param_store(name)\
1625 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1626 lpfc_##name##_show, lpfc_##name##_store)
1628 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1629 static uint lpfc_##name = defval;\
1630 module_param(lpfc_##name, uint, 0);\
1631 MODULE_PARM_DESC(lpfc_##name, desc);\
1632 lpfc_vport_param_hex_show(name)\
1633 lpfc_vport_param_init(name, defval, minval, maxval)\
1634 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1636 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1637 static uint lpfc_##name = defval;\
1638 module_param(lpfc_##name, uint, 0);\
1639 MODULE_PARM_DESC(lpfc_##name, desc);\
1640 lpfc_vport_param_hex_show(name)\
1641 lpfc_vport_param_init(name, defval, minval, maxval)\
1642 lpfc_vport_param_set(name, defval, minval, maxval)\
1643 lpfc_vport_param_store(name)\
1644 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1645 lpfc_##name##_show, lpfc_##name##_store)
1647 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
1648 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
1649 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
1650 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
1651 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
1652 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
1653 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
1654 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
1655 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
1656 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
1657 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
1658 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
1659 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
1660 lpfc_link_state_store);
1661 static DEVICE_ATTR(option_rom_version, S_IRUGO,
1662 lpfc_option_rom_version_show, NULL);
1663 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
1664 lpfc_num_discovered_ports_show, NULL);
1665 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
1666 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
1667 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
1668 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
1669 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
1670 lpfc_board_mode_show, lpfc_board_mode_store);
1671 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
1672 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
1673 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
1674 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
1675 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
1676 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
1677 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
1678 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
1679 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
1682 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
1685 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
1686 * @dev: class device that is converted into a Scsi_host.
1687 * @attr: device attribute, not used.
1688 * @buf: containing the string lpfc_soft_wwn_key.
1689 * @count: must be size of lpfc_soft_wwn_key.
1692 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
1693 * length of buf indicates success
1696 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
1697 const char *buf, size_t count)
1699 struct Scsi_Host *shost = class_to_shost(dev);
1700 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1701 struct lpfc_hba *phba = vport->phba;
1702 unsigned int cnt = count;
1705 * We're doing a simple sanity check for soft_wwpn setting.
1706 * We require that the user write a specific key to enable
1707 * the soft_wwpn attribute to be settable. Once the attribute
1708 * is written, the enable key resets. If further updates are
1709 * desired, the key must be written again to re-enable the
1712 * The "key" is not secret - it is a hardcoded string shown
1713 * here. The intent is to protect against the random user or
1714 * application that is just writing attributes.
1717 /* count may include a LF at end of string */
1718 if (buf[cnt-1] == '\n')
1721 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
1722 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
1725 phba->soft_wwn_enable = 1;
1728 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
1729 lpfc_soft_wwn_enable_store);
1732 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
1733 * @dev: class device that is converted into a Scsi_host.
1734 * @attr: device attribute, not used.
1735 * @buf: on return contains the wwpn in hexadecimal.
1737 * Returns: size of formatted string.
1740 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
1743 struct Scsi_Host *shost = class_to_shost(dev);
1744 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1745 struct lpfc_hba *phba = vport->phba;
1747 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1748 (unsigned long long)phba->cfg_soft_wwpn);
1752 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
1753 * @dev class device that is converted into a Scsi_host.
1754 * @attr: device attribute, not used.
1755 * @buf: contains the wwpn in hexadecimal.
1756 * @count: number of wwpn bytes in buf
1759 * -EACCES hba reset not enabled, adapter over temp
1760 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
1761 * -EIO error taking adapter offline or online
1762 * value of count on success
1765 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
1766 const char *buf, size_t count)
1768 struct Scsi_Host *shost = class_to_shost(dev);
1769 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1770 struct lpfc_hba *phba = vport->phba;
1771 struct completion online_compl;
1772 int stat1=0, stat2=0;
1773 unsigned int i, j, cnt=count;
1776 if (!phba->cfg_enable_hba_reset)
1778 spin_lock_irq(&phba->hbalock);
1779 if (phba->over_temp_state == HBA_OVER_TEMP) {
1780 spin_unlock_irq(&phba->hbalock);
1783 spin_unlock_irq(&phba->hbalock);
1784 /* count may include a LF at end of string */
1785 if (buf[cnt-1] == '\n')
1788 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1789 ((cnt == 17) && (*buf++ != 'x')) ||
1790 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1793 phba->soft_wwn_enable = 0;
1795 memset(wwpn, 0, sizeof(wwpn));
1797 /* Validate and store the new name */
1798 for (i=0, j=0; i < 16; i++) {
1801 value = hex_to_bin(*buf++);
1803 j = (j << 4) | value;
1807 wwpn[i/2] = j & 0xff;
1811 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1812 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1813 if (phba->cfg_soft_wwnn)
1814 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1816 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1817 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1819 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1821 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1822 "0463 lpfc_soft_wwpn attribute set failed to "
1823 "reinit adapter - %d\n", stat1);
1824 init_completion(&online_compl);
1825 lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1826 wait_for_completion(&online_compl);
1828 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1829 "0464 lpfc_soft_wwpn attribute set failed to "
1830 "reinit adapter - %d\n", stat2);
1831 return (stat1 || stat2) ? -EIO : count;
1833 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1834 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1837 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
1838 * @dev: class device that is converted into a Scsi_host.
1839 * @attr: device attribute, not used.
1840 * @buf: on return contains the wwnn in hexadecimal.
1842 * Returns: size of formatted string.
1845 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
1848 struct Scsi_Host *shost = class_to_shost(dev);
1849 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1850 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1851 (unsigned long long)phba->cfg_soft_wwnn);
1855 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
1856 * @cdev: class device that is converted into a Scsi_host.
1857 * @buf: contains the ww node name in hexadecimal.
1858 * @count: number of wwnn bytes in buf.
1861 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
1862 * value of count on success
1865 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
1866 const char *buf, size_t count)
1868 struct Scsi_Host *shost = class_to_shost(dev);
1869 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1870 unsigned int i, j, cnt=count;
1873 /* count may include a LF at end of string */
1874 if (buf[cnt-1] == '\n')
1877 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1878 ((cnt == 17) && (*buf++ != 'x')) ||
1879 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1883 * Allow wwnn to be set many times, as long as the enable is set.
1884 * However, once the wwpn is set, everything locks.
1887 memset(wwnn, 0, sizeof(wwnn));
1889 /* Validate and store the new name */
1890 for (i=0, j=0; i < 16; i++) {
1893 value = hex_to_bin(*buf++);
1895 j = (j << 4) | value;
1899 wwnn[i/2] = j & 0xff;
1903 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1905 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1906 "lpfc%d: soft_wwnn set. Value will take effect upon "
1907 "setting of the soft_wwpn\n", phba->brd_no);
1911 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1912 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1915 static int lpfc_poll = 0;
1916 module_param(lpfc_poll, int, 0);
1917 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1919 " 1 - poll with interrupts enabled"
1920 " 3 - poll and disable FCP ring interrupts");
1922 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1923 lpfc_poll_show, lpfc_poll_store);
1925 int lpfc_sli_mode = 0;
1926 module_param(lpfc_sli_mode, int, 0);
1927 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1928 " 0 - auto (SLI-3 if supported),"
1929 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1930 " 3 - select SLI-3");
1932 int lpfc_enable_npiv = 1;
1933 module_param(lpfc_enable_npiv, int, 0);
1934 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
1935 lpfc_param_show(enable_npiv);
1936 lpfc_param_init(enable_npiv, 1, 0, 1);
1937 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
1940 # lpfc_suppress_link_up: Bring link up at initialization
1941 # 0x0 = bring link up (issue MBX_INIT_LINK)
1942 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
1943 # 0x2 = never bring up link
1944 # Default value is 0.
1946 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
1947 LPFC_DELAY_INIT_LINK_INDEFINITELY,
1948 "Suppress Link Up at initialization");
1950 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
1958 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
1960 struct Scsi_Host *shost = class_to_shost(dev);
1961 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
1963 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
1966 static DEVICE_ATTR(iocb_hw, S_IRUGO,
1967 lpfc_iocb_hw_show, NULL);
1969 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
1971 struct Scsi_Host *shost = class_to_shost(dev);
1972 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
1974 return snprintf(buf, PAGE_SIZE, "%d\n",
1975 phba->sli.ring[LPFC_ELS_RING].txq_max);
1978 static DEVICE_ATTR(txq_hw, S_IRUGO,
1979 lpfc_txq_hw_show, NULL);
1981 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
1984 struct Scsi_Host *shost = class_to_shost(dev);
1985 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
1987 return snprintf(buf, PAGE_SIZE, "%d\n",
1988 phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
1991 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
1992 lpfc_txcmplq_hw_show, NULL);
1994 int lpfc_iocb_cnt = 2;
1995 module_param(lpfc_iocb_cnt, int, 1);
1996 MODULE_PARM_DESC(lpfc_iocb_cnt,
1997 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
1998 lpfc_param_show(iocb_cnt);
1999 lpfc_param_init(iocb_cnt, 2, 1, 5);
2000 static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO,
2001 lpfc_iocb_cnt_show, NULL);
2004 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
2005 # until the timer expires. Value range is [0,255]. Default value is 30.
2007 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2008 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
2009 module_param(lpfc_nodev_tmo, int, 0);
2010 MODULE_PARM_DESC(lpfc_nodev_tmo,
2011 "Seconds driver will hold I/O waiting "
2012 "for a device to come back");
2015 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2016 * @dev: class converted to a Scsi_host structure.
2017 * @attr: device attribute, not used.
2018 * @buf: on return contains the dev loss timeout in decimal.
2020 * Returns: size of formatted string.
2023 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
2026 struct Scsi_Host *shost = class_to_shost(dev);
2027 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2029 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
2033 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2034 * @vport: lpfc vport structure pointer.
2035 * @val: contains the nodev timeout value.
2038 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
2039 * a kernel error message is printed and zero is returned.
2040 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2041 * Otherwise nodev tmo is set to the default value.
2044 * zero if already set or if val is in range
2045 * -EINVAL val out of range
2048 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
2050 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
2051 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
2052 if (val != LPFC_DEF_DEVLOSS_TMO)
2053 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2054 "0407 Ignoring nodev_tmo module "
2055 "parameter because devloss_tmo is "
2060 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2061 vport->cfg_nodev_tmo = val;
2062 vport->cfg_devloss_tmo = val;
2065 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2066 "0400 lpfc_nodev_tmo attribute cannot be set to"
2067 " %d, allowed range is [%d, %d]\n",
2068 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2069 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2074 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2075 * @vport: lpfc vport structure pointer.
2078 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
2081 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2083 struct Scsi_Host *shost;
2084 struct lpfc_nodelist *ndlp;
2086 shost = lpfc_shost_from_vport(vport);
2087 spin_lock_irq(shost->host_lock);
2088 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2089 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2090 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
2091 spin_unlock_irq(shost->host_lock);
2095 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2096 * @vport: lpfc vport structure pointer.
2097 * @val: contains the tmo value.
2100 * If the devloss tmo is already set or the vport dev loss tmo has changed
2101 * then a kernel error message is printed and zero is returned.
2102 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2103 * Otherwise nodev tmo is set to the default value.
2106 * zero if already set or if val is in range
2107 * -EINVAL val out of range
2110 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2112 if (vport->dev_loss_tmo_changed ||
2113 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2114 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2115 "0401 Ignoring change to nodev_tmo "
2116 "because devloss_tmo is set.\n");
2119 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2120 vport->cfg_nodev_tmo = val;
2121 vport->cfg_devloss_tmo = val;
2122 lpfc_update_rport_devloss_tmo(vport);
2125 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2126 "0403 lpfc_nodev_tmo attribute cannot be set to"
2127 "%d, allowed range is [%d, %d]\n",
2128 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2132 lpfc_vport_param_store(nodev_tmo)
2134 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
2135 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
2138 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
2139 # disappear until the timer expires. Value range is [0,255]. Default
2142 module_param(lpfc_devloss_tmo, int, 0);
2143 MODULE_PARM_DESC(lpfc_devloss_tmo,
2144 "Seconds driver will hold I/O waiting "
2145 "for a device to come back");
2146 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
2147 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
2148 lpfc_vport_param_show(devloss_tmo)
2151 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
2152 * @vport: lpfc vport structure pointer.
2153 * @val: contains the tmo value.
2156 * If val is in a valid range then set the vport nodev tmo,
2157 * devloss tmo, also set the vport dev loss tmo changed flag.
2158 * Else a kernel error message is printed.
2161 * zero if val is in range
2162 * -EINVAL val out of range
2165 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
2167 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2168 vport->cfg_nodev_tmo = val;
2169 vport->cfg_devloss_tmo = val;
2170 vport->dev_loss_tmo_changed = 1;
2171 lpfc_update_rport_devloss_tmo(vport);
2175 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2176 "0404 lpfc_devloss_tmo attribute cannot be set to"
2177 " %d, allowed range is [%d, %d]\n",
2178 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2182 lpfc_vport_param_store(devloss_tmo)
2183 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
2184 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
2187 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
2188 # deluged with LOTS of information.
2189 # You can set a bit mask to record specific types of verbose messages:
2190 # See lpfc_logmsh.h for definitions.
2192 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
2193 "Verbose logging bit-mask");
2196 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
2197 # objects that have been registered with the nameserver after login.
2199 LPFC_VPORT_ATTR_R(enable_da_id, 0, 0, 1,
2200 "Deregister nameserver objects before LOGO");
2203 # lun_queue_depth: This parameter is used to limit the number of outstanding
2204 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
2206 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
2207 "Max number of FCP commands we can queue to a specific LUN");
2210 # tgt_queue_depth: This parameter is used to limit the number of outstanding
2211 # commands per target port. Value range is [10,65535]. Default value is 65535.
2213 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
2214 "Max number of FCP commands we can queue to a specific target port");
2217 # hba_queue_depth: This parameter is used to limit the number of outstanding
2218 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
2219 # value is greater than the maximum number of exchanges supported by the HBA,
2220 # then maximum number of exchanges supported by the HBA is used to determine
2221 # the hba_queue_depth.
2223 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
2224 "Max number of FCP commands we can queue to a lpfc HBA");
2227 # peer_port_login: This parameter allows/prevents logins
2228 # between peer ports hosted on the same physical port.
2229 # When this parameter is set 0 peer ports of same physical port
2230 # are not allowed to login to each other.
2231 # When this parameter is set 1 peer ports of same physical port
2232 # are allowed to login to each other.
2233 # Default value of this parameter is 0.
2235 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
2236 "Allow peer ports on the same physical port to login to each "
2240 # restrict_login: This parameter allows/prevents logins
2241 # between Virtual Ports and remote initiators.
2242 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
2243 # other initiators and will attempt to PLOGI all remote ports.
2244 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
2245 # remote ports and will not attempt to PLOGI to other initiators.
2246 # This parameter does not restrict to the physical port.
2247 # This parameter does not restrict logins to Fabric resident remote ports.
2248 # Default value of this parameter is 1.
2250 static int lpfc_restrict_login = 1;
2251 module_param(lpfc_restrict_login, int, 0);
2252 MODULE_PARM_DESC(lpfc_restrict_login,
2253 "Restrict virtual ports login to remote initiators.");
2254 lpfc_vport_param_show(restrict_login);
2257 * lpfc_restrict_login_init - Set the vport restrict login flag
2258 * @vport: lpfc vport structure pointer.
2259 * @val: contains the restrict login value.
2262 * If val is not in a valid range then log a kernel error message and set
2263 * the vport restrict login to one.
2264 * If the port type is physical clear the restrict login flag and return.
2265 * Else set the restrict login flag to val.
2268 * zero if val is in range
2269 * -EINVAL val out of range
2272 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
2274 if (val < 0 || val > 1) {
2275 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2276 "0422 lpfc_restrict_login attribute cannot "
2277 "be set to %d, allowed range is [0, 1]\n",
2279 vport->cfg_restrict_login = 1;
2282 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2283 vport->cfg_restrict_login = 0;
2286 vport->cfg_restrict_login = val;
2291 * lpfc_restrict_login_set - Set the vport restrict login flag
2292 * @vport: lpfc vport structure pointer.
2293 * @val: contains the restrict login value.
2296 * If val is not in a valid range then log a kernel error message and set
2297 * the vport restrict login to one.
2298 * If the port type is physical and the val is not zero log a kernel
2299 * error message, clear the restrict login flag and return zero.
2300 * Else set the restrict login flag to val.
2303 * zero if val is in range
2304 * -EINVAL val out of range
2307 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
2309 if (val < 0 || val > 1) {
2310 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2311 "0425 lpfc_restrict_login attribute cannot "
2312 "be set to %d, allowed range is [0, 1]\n",
2314 vport->cfg_restrict_login = 1;
2317 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
2318 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2319 "0468 lpfc_restrict_login must be 0 for "
2320 "Physical ports.\n");
2321 vport->cfg_restrict_login = 0;
2324 vport->cfg_restrict_login = val;
2327 lpfc_vport_param_store(restrict_login);
2328 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
2329 lpfc_restrict_login_show, lpfc_restrict_login_store);
2332 # Some disk devices have a "select ID" or "select Target" capability.
2333 # From a protocol standpoint "select ID" usually means select the
2334 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
2335 # annex" which contains a table that maps a "select ID" (a number
2336 # between 0 and 7F) to an ALPA. By default, for compatibility with
2337 # older drivers, the lpfc driver scans this table from low ALPA to high
2340 # Turning on the scan-down variable (on = 1, off = 0) will
2341 # cause the lpfc driver to use an inverted table, effectively
2342 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
2344 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
2345 # and will not work across a fabric. Also this parameter will take
2346 # effect only in the case when ALPA map is not available.)
2348 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
2349 "Start scanning for devices from highest ALPA to lowest");
2352 # lpfc_topology: link topology for init link
2353 # 0x0 = attempt loop mode then point-to-point
2354 # 0x01 = internal loopback mode
2355 # 0x02 = attempt point-to-point mode only
2356 # 0x04 = attempt loop mode only
2357 # 0x06 = attempt point-to-point mode then loop
2358 # Set point-to-point mode if you want to run as an N_Port.
2359 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
2360 # Default value is 0.
2364 * lpfc_topology_set - Set the adapters topology field
2365 * @phba: lpfc_hba pointer.
2366 * @val: topology value.
2369 * If val is in a valid range then set the adapter's topology field and
2370 * issue a lip; if the lip fails reset the topology to the old value.
2372 * If the value is not in range log a kernel error message and return an error.
2375 * zero if val is in range and lip okay
2376 * non-zero return value from lpfc_issue_lip()
2377 * -EINVAL val out of range
2380 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
2381 const char *buf, size_t count)
2383 struct Scsi_Host *shost = class_to_shost(dev);
2384 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2385 struct lpfc_hba *phba = vport->phba;
2388 const char *val_buf = buf;
2392 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
2394 val_buf = &buf[strlen("nolip ")];
2397 if (!isdigit(val_buf[0]))
2399 if (sscanf(val_buf, "%i", &val) != 1)
2402 if (val >= 0 && val <= 6) {
2403 prev_val = phba->cfg_topology;
2404 phba->cfg_topology = val;
2408 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2410 phba->cfg_topology = prev_val;
2415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2416 "%d:0467 lpfc_topology attribute cannot be set to %d, "
2417 "allowed range is [0, 6]\n",
2421 static int lpfc_topology = 0;
2422 module_param(lpfc_topology, int, 0);
2423 MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
2424 lpfc_param_show(topology)
2425 lpfc_param_init(topology, 0, 0, 6)
2426 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
2427 lpfc_topology_show, lpfc_topology_store);
2430 * lpfc_static_vport_show: Read callback function for
2431 * lpfc_static_vport sysfs file.
2432 * @dev: Pointer to class device object.
2433 * @attr: device attribute structure.
2434 * @buf: Data buffer.
2436 * This function is the read call back function for
2437 * lpfc_static_vport sysfs file. The lpfc_static_vport
2438 * sysfs file report the mageability of the vport.
2441 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
2444 struct Scsi_Host *shost = class_to_shost(dev);
2445 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2446 if (vport->vport_flag & STATIC_VPORT)
2447 sprintf(buf, "1\n");
2449 sprintf(buf, "0\n");
2455 * Sysfs attribute to control the statistical data collection.
2457 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
2458 lpfc_static_vport_show, NULL);
2461 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
2462 * @dev: Pointer to class device.
2463 * @buf: Data buffer.
2464 * @count: Size of the data buffer.
2466 * This function get called when an user write to the lpfc_stat_data_ctrl
2467 * sysfs file. This function parse the command written to the sysfs file
2468 * and take appropriate action. These commands are used for controlling
2469 * driver statistical data collection.
2470 * Following are the command this function handles.
2472 * setbucket <bucket_type> <base> <step>
2473 * = Set the latency buckets.
2474 * destroybucket = destroy all the buckets.
2475 * start = start data collection
2476 * stop = stop data collection
2477 * reset = reset the collected data
2480 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
2481 const char *buf, size_t count)
2483 struct Scsi_Host *shost = class_to_shost(dev);
2484 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2485 struct lpfc_hba *phba = vport->phba;
2486 #define LPFC_MAX_DATA_CTRL_LEN 1024
2487 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
2489 char *str_ptr, *token;
2490 struct lpfc_vport **vports;
2491 struct Scsi_Host *v_shost;
2492 char *bucket_type_str, *base_str, *step_str;
2493 unsigned long base, step, bucket_type;
2495 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
2496 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
2499 strcpy(bucket_data, buf);
2500 str_ptr = &bucket_data[0];
2501 /* Ignore this token - this is command token */
2502 token = strsep(&str_ptr, "\t ");
2506 bucket_type_str = strsep(&str_ptr, "\t ");
2507 if (!bucket_type_str)
2510 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
2511 bucket_type = LPFC_LINEAR_BUCKET;
2512 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
2513 bucket_type = LPFC_POWER2_BUCKET;
2517 base_str = strsep(&str_ptr, "\t ");
2520 base = simple_strtoul(base_str, NULL, 0);
2522 step_str = strsep(&str_ptr, "\t ");
2525 step = simple_strtoul(step_str, NULL, 0);
2529 /* Block the data collection for every vport */
2530 vports = lpfc_create_vport_work_array(phba);
2534 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2535 v_shost = lpfc_shost_from_vport(vports[i]);
2536 spin_lock_irq(v_shost->host_lock);
2537 /* Block and reset data collection */
2538 vports[i]->stat_data_blocked = 1;
2539 if (vports[i]->stat_data_enabled)
2540 lpfc_vport_reset_stat_data(vports[i]);
2541 spin_unlock_irq(v_shost->host_lock);
2544 /* Set the bucket attributes */
2545 phba->bucket_type = bucket_type;
2546 phba->bucket_base = base;
2547 phba->bucket_step = step;
2549 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2550 v_shost = lpfc_shost_from_vport(vports[i]);
2552 /* Unblock data collection */
2553 spin_lock_irq(v_shost->host_lock);
2554 vports[i]->stat_data_blocked = 0;
2555 spin_unlock_irq(v_shost->host_lock);
2557 lpfc_destroy_vport_work_array(phba, vports);
2561 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
2562 vports = lpfc_create_vport_work_array(phba);
2566 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2567 v_shost = lpfc_shost_from_vport(vports[i]);
2568 spin_lock_irq(shost->host_lock);
2569 vports[i]->stat_data_blocked = 1;
2570 lpfc_free_bucket(vport);
2571 vport->stat_data_enabled = 0;
2572 vports[i]->stat_data_blocked = 0;
2573 spin_unlock_irq(shost->host_lock);
2575 lpfc_destroy_vport_work_array(phba, vports);
2576 phba->bucket_type = LPFC_NO_BUCKET;
2577 phba->bucket_base = 0;
2578 phba->bucket_step = 0;
2582 if (!strncmp(buf, "start", strlen("start"))) {
2583 /* If no buckets configured return error */
2584 if (phba->bucket_type == LPFC_NO_BUCKET)
2586 spin_lock_irq(shost->host_lock);
2587 if (vport->stat_data_enabled) {
2588 spin_unlock_irq(shost->host_lock);
2591 lpfc_alloc_bucket(vport);
2592 vport->stat_data_enabled = 1;
2593 spin_unlock_irq(shost->host_lock);
2597 if (!strncmp(buf, "stop", strlen("stop"))) {
2598 spin_lock_irq(shost->host_lock);
2599 if (vport->stat_data_enabled == 0) {
2600 spin_unlock_irq(shost->host_lock);
2603 lpfc_free_bucket(vport);
2604 vport->stat_data_enabled = 0;
2605 spin_unlock_irq(shost->host_lock);
2609 if (!strncmp(buf, "reset", strlen("reset"))) {
2610 if ((phba->bucket_type == LPFC_NO_BUCKET)
2611 || !vport->stat_data_enabled)
2613 spin_lock_irq(shost->host_lock);
2614 vport->stat_data_blocked = 1;
2615 lpfc_vport_reset_stat_data(vport);
2616 vport->stat_data_blocked = 0;
2617 spin_unlock_irq(shost->host_lock);
2625 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
2626 * @dev: Pointer to class device object.
2627 * @buf: Data buffer.
2629 * This function is the read call back function for
2630 * lpfc_stat_data_ctrl sysfs file. This function report the
2631 * current statistical data collection state.
2634 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
2637 struct Scsi_Host *shost = class_to_shost(dev);
2638 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2639 struct lpfc_hba *phba = vport->phba;
2643 unsigned long bucket_value;
2645 switch (phba->bucket_type) {
2646 case LPFC_LINEAR_BUCKET:
2647 bucket_type = "linear";
2649 case LPFC_POWER2_BUCKET:
2650 bucket_type = "power2";
2653 bucket_type = "No Bucket";
2657 sprintf(&buf[index], "Statistical Data enabled :%d, "
2658 "blocked :%d, Bucket type :%s, Bucket base :%d,"
2659 " Bucket step :%d\nLatency Ranges :",
2660 vport->stat_data_enabled, vport->stat_data_blocked,
2661 bucket_type, phba->bucket_base, phba->bucket_step);
2662 index = strlen(buf);
2663 if (phba->bucket_type != LPFC_NO_BUCKET) {
2664 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2665 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
2666 bucket_value = phba->bucket_base +
2667 phba->bucket_step * i;
2669 bucket_value = phba->bucket_base +
2670 (1 << i) * phba->bucket_step;
2672 if (index + 10 > PAGE_SIZE)
2674 sprintf(&buf[index], "%08ld ", bucket_value);
2675 index = strlen(buf);
2678 sprintf(&buf[index], "\n");
2683 * Sysfs attribute to control the statistical data collection.
2685 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
2686 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
2689 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
2693 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
2696 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
2697 #define MAX_STAT_DATA_SIZE_PER_TARGET \
2698 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
2702 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
2704 * @kobj: Pointer to the kernel object
2705 * @bin_attr: Attribute object
2706 * @buff: Buffer pointer
2708 * @count: Buffer size
2710 * This function is the read call back function for lpfc_drvr_stat_data
2711 * sysfs file. This function export the statistical data to user
2715 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
2716 struct bin_attribute *bin_attr,
2717 char *buf, loff_t off, size_t count)
2719 struct device *dev = container_of(kobj, struct device,
2721 struct Scsi_Host *shost = class_to_shost(dev);
2722 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2723 struct lpfc_hba *phba = vport->phba;
2724 int i = 0, index = 0;
2725 unsigned long nport_index;
2726 struct lpfc_nodelist *ndlp = NULL;
2727 nport_index = (unsigned long)off /
2728 MAX_STAT_DATA_SIZE_PER_TARGET;
2730 if (!vport->stat_data_enabled || vport->stat_data_blocked
2731 || (phba->bucket_type == LPFC_NO_BUCKET))
2734 spin_lock_irq(shost->host_lock);
2735 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2736 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
2739 if (nport_index > 0) {
2744 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
2748 if (!ndlp->lat_data)
2752 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
2753 ndlp->nlp_portname.u.wwn[0],
2754 ndlp->nlp_portname.u.wwn[1],
2755 ndlp->nlp_portname.u.wwn[2],
2756 ndlp->nlp_portname.u.wwn[3],
2757 ndlp->nlp_portname.u.wwn[4],
2758 ndlp->nlp_portname.u.wwn[5],
2759 ndlp->nlp_portname.u.wwn[6],
2760 ndlp->nlp_portname.u.wwn[7]);
2762 index = strlen(buf);
2764 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2765 sprintf(&buf[index], "%010u,",
2766 ndlp->lat_data[i].cmd_count);
2767 index = strlen(buf);
2769 sprintf(&buf[index], "\n");
2770 index = strlen(buf);
2772 spin_unlock_irq(shost->host_lock);
2776 static struct bin_attribute sysfs_drvr_stat_data_attr = {
2778 .name = "lpfc_drvr_stat_data",
2781 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
2782 .read = sysfs_drvr_stat_data_read,
2787 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
2789 # 0 = auto select (default)
2794 # Value range is [0,8]. Default value is 0.
2798 * lpfc_link_speed_set - Set the adapters link speed
2799 * @phba: lpfc_hba pointer.
2800 * @val: link speed value.
2803 * If val is in a valid range then set the adapter's link speed field and
2804 * issue a lip; if the lip fails reset the link speed to the old value.
2807 * If the value is not in range log a kernel error message and return an error.
2810 * zero if val is in range and lip okay.
2811 * non-zero return value from lpfc_issue_lip()
2812 * -EINVAL val out of range
2815 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
2816 const char *buf, size_t count)
2818 struct Scsi_Host *shost = class_to_shost(dev);
2819 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2820 struct lpfc_hba *phba = vport->phba;
2823 const char *val_buf = buf;
2827 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
2829 val_buf = &buf[strlen("nolip ")];
2832 if (!isdigit(val_buf[0]))
2834 if (sscanf(val_buf, "%i", &val) != 1)
2837 if (((val == LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
2838 ((val == LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
2839 ((val == LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
2840 ((val == LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
2841 ((val == LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)))
2844 if ((val >= 0 && val <= 8)
2845 && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
2846 prev_val = phba->cfg_link_speed;
2847 phba->cfg_link_speed = val;
2851 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2853 phba->cfg_link_speed = prev_val;
2859 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2860 "%d:0469 lpfc_link_speed attribute cannot be set to %d, "
2861 "allowed range is [0, 8]\n",
2866 static int lpfc_link_speed = 0;
2867 module_param(lpfc_link_speed, int, 0);
2868 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
2869 lpfc_param_show(link_speed)
2872 * lpfc_link_speed_init - Set the adapters link speed
2873 * @phba: lpfc_hba pointer.
2874 * @val: link speed value.
2877 * If val is in a valid range then set the adapter's link speed field.
2880 * If the value is not in range log a kernel error message, clear the link
2881 * speed and return an error.
2884 * zero if val saved.
2885 * -EINVAL val out of range
2888 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
2890 if ((val >= 0 && val <= LPFC_MAX_LINK_SPEED)
2891 && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
2892 phba->cfg_link_speed = val;
2895 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2896 "0405 lpfc_link_speed attribute cannot "
2897 "be set to %d, allowed values are "
2898 "["LPFC_LINK_SPEED_STRING"]\n", val);
2899 phba->cfg_link_speed = 0;
2903 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
2904 lpfc_link_speed_show, lpfc_link_speed_store);
2907 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
2908 # 0 = aer disabled or not supported
2909 # 1 = aer supported and enabled (default)
2910 # Value range is [0,1]. Default value is 1.
2914 * lpfc_aer_support_store - Set the adapter for aer support
2916 * @dev: class device that is converted into a Scsi_host.
2917 * @attr: device attribute, not used.
2918 * @buf: containing the string "selective".
2919 * @count: unused variable.
2922 * If the val is 1 and currently the device's AER capability was not
2923 * enabled, invoke the kernel's enable AER helper routine, trying to
2924 * enable the device's AER capability. If the helper routine enabling
2925 * AER returns success, update the device's cfg_aer_support flag to
2926 * indicate AER is supported by the device; otherwise, if the device
2927 * AER capability is already enabled to support AER, then do nothing.
2929 * If the val is 0 and currently the device's AER support was enabled,
2930 * invoke the kernel's disable AER helper routine. After that, update
2931 * the device's cfg_aer_support flag to indicate AER is not supported
2932 * by the device; otherwise, if the device AER capability is already
2933 * disabled from supporting AER, then do nothing.
2936 * length of the buf on success if val is in range the intended mode
2938 * -EINVAL if val out of range or intended mode is not supported.
2941 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
2942 const char *buf, size_t count)
2944 struct Scsi_Host *shost = class_to_shost(dev);
2945 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
2946 struct lpfc_hba *phba = vport->phba;
2947 int val = 0, rc = -EINVAL;
2949 if (!isdigit(buf[0]))
2951 if (sscanf(buf, "%i", &val) != 1)
2956 if (phba->hba_flag & HBA_AER_ENABLED) {
2957 rc = pci_disable_pcie_error_reporting(phba->pcidev);
2959 spin_lock_irq(&phba->hbalock);
2960 phba->hba_flag &= ~HBA_AER_ENABLED;
2961 spin_unlock_irq(&phba->hbalock);
2962 phba->cfg_aer_support = 0;
2967 phba->cfg_aer_support = 0;
2972 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
2973 rc = pci_enable_pcie_error_reporting(phba->pcidev);
2975 spin_lock_irq(&phba->hbalock);
2976 phba->hba_flag |= HBA_AER_ENABLED;
2977 spin_unlock_irq(&phba->hbalock);
2978 phba->cfg_aer_support = 1;
2983 phba->cfg_aer_support = 1;
2994 static int lpfc_aer_support = 1;
2995 module_param(lpfc_aer_support, int, 1);
2996 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
2997 lpfc_param_show(aer_support)
3000 * lpfc_aer_support_init - Set the initial adapters aer support flag
3001 * @phba: lpfc_hba pointer.
3002 * @val: link speed value.
3005 * If val is in a valid range [0,1], then set the adapter's initial
3006 * cfg_aer_support field. It will be up to the driver's probe_one
3007 * routine to determine whether the device's AER support can be set
3011 * If the value is not in range log a kernel error message, and
3012 * choose the default value of setting AER support and return.
3015 * zero if val saved.
3016 * -EINVAL val out of range
3019 lpfc_aer_support_init(struct lpfc_hba *phba, int val)
3021 if (val == 0 || val == 1) {
3022 phba->cfg_aer_support = val;
3025 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3026 "2712 lpfc_aer_support attribute value %d out "
3027 "of range, allowed values are 0|1, setting it "
3028 "to default value of 1\n", val);
3029 /* By default, try to enable AER on a device */
3030 phba->cfg_aer_support = 1;
3034 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
3035 lpfc_aer_support_show, lpfc_aer_support_store);
3038 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
3039 * @dev: class device that is converted into a Scsi_host.
3040 * @attr: device attribute, not used.
3041 * @buf: containing the string "selective".
3042 * @count: unused variable.
3045 * If the @buf contains 1 and the device currently has the AER support
3046 * enabled, then invokes the kernel AER helper routine
3047 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
3048 * error status register.
3053 * -EINVAL if the buf does not contain the 1 or the device is not currently
3054 * enabled with the AER support.
3057 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
3058 const char *buf, size_t count)
3060 struct Scsi_Host *shost = class_to_shost(dev);
3061 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3062 struct lpfc_hba *phba = vport->phba;
3065 if (!isdigit(buf[0]))
3067 if (sscanf(buf, "%i", &val) != 1)
3072 if (phba->hba_flag & HBA_AER_ENABLED)
3073 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
3081 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
3082 lpfc_aer_cleanup_state);
3085 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
3086 # Value range is [2,3]. Default value is 3.
3088 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
3089 "Select Fibre Channel class of service for FCP sequences");
3092 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
3093 # is [0,1]. Default value is 0.
3095 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
3096 "Use ADISC on rediscovery to authenticate FCP devices");
3099 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
3100 # depth. Default value is 0. When the value of this parameter is zero the
3101 # SCSI command completion time is not used for controlling I/O queue depth. When
3102 # the parameter is set to a non-zero value, the I/O queue depth is controlled
3103 # to limit the I/O completion time to the parameter value.
3104 # The value is set in milliseconds.
3106 static int lpfc_max_scsicmpl_time;
3107 module_param(lpfc_max_scsicmpl_time, int, 0);
3108 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
3109 "Use command completion time to control queue depth");
3110 lpfc_vport_param_show(max_scsicmpl_time);
3111 lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
3113 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
3115 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3116 struct lpfc_nodelist *ndlp, *next_ndlp;
3118 if (val == vport->cfg_max_scsicmpl_time)
3120 if ((val < 0) || (val > 60000))
3122 vport->cfg_max_scsicmpl_time = val;
3124 spin_lock_irq(shost->host_lock);
3125 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
3126 if (!NLP_CHK_NODE_ACT(ndlp))
3128 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3130 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
3132 spin_unlock_irq(shost->host_lock);
3135 lpfc_vport_param_store(max_scsicmpl_time);
3136 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
3137 lpfc_max_scsicmpl_time_show,
3138 lpfc_max_scsicmpl_time_store);
3141 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
3142 # range is [0,1]. Default value is 0.
3144 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
3147 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
3148 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
3149 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
3150 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
3151 # cr_delay is set to 0.
3153 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
3154 "interrupt response is generated");
3156 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
3157 "interrupt response is generated");
3160 # lpfc_multi_ring_support: Determines how many rings to spread available
3161 # cmd/rsp IOCB entries across.
3162 # Value range is [1,2]. Default value is 1.
3164 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
3165 "SLI rings to spread IOCB entries across");
3168 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
3169 # identifies what rctl value to configure the additional ring for.
3170 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
3172 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
3173 255, "Identifies RCTL for additional ring configuration");
3176 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
3177 # identifies what type value to configure the additional ring for.
3178 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
3180 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
3181 255, "Identifies TYPE for additional ring configuration");
3184 # lpfc_fdmi_on: controls FDMI support.
3185 # 0 = no FDMI support
3186 # 1 = support FDMI without attribute of hostname
3187 # 2 = support FDMI with attribute of hostname
3188 # Value range [0,2]. Default value is 0.
3190 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
3193 # Specifies the maximum number of ELS cmds we can have outstanding (for
3194 # discovery). Value range is [1,64]. Default value = 32.
3196 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
3197 "during discovery");
3200 # lpfc_max_luns: maximum allowed LUN.
3201 # Value range is [0,65535]. Default value is 255.
3202 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
3204 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
3207 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
3208 # Value range is [1,255], default value is 10.
3210 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
3211 "Milliseconds driver will wait between polling FCP ring");
3214 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
3215 # support this feature
3218 # 2 = MSI-X enabled (default)
3219 # Value range is [0,2]. Default value is 2.
3221 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
3222 "MSI-X (2), if possible");
3225 # lpfc_fcp_imax: Set the maximum number of fast-path FCP interrupts per second
3227 # Value range is [636,651042]. Default value is 10000.
3229 LPFC_ATTR_R(fcp_imax, LPFC_FP_DEF_IMAX, LPFC_MIM_IMAX, LPFC_DMULT_CONST,
3230 "Set the maximum number of fast-path FCP interrupts per second");
3233 # lpfc_fcp_wq_count: Set the number of fast-path FCP work queues
3235 # Value range is [1,31]. Default value is 4.
3237 LPFC_ATTR_R(fcp_wq_count, LPFC_FP_WQN_DEF, LPFC_FP_WQN_MIN, LPFC_FP_WQN_MAX,
3238 "Set the number of fast-path FCP work queues, if possible");
3241 # lpfc_fcp_eq_count: Set the number of fast-path FCP event queues
3243 # Value range is [1,7]. Default value is 1.
3245 LPFC_ATTR_R(fcp_eq_count, LPFC_FP_EQN_DEF, LPFC_FP_EQN_MIN, LPFC_FP_EQN_MAX,
3246 "Set the number of fast-path FCP event queues, if possible");
3249 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
3250 # 0 = HBA resets disabled
3251 # 1 = HBA resets enabled (default)
3252 # Value range is [0,1]. Default value is 1.
3254 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
3257 # lpfc_enable_hba_heartbeat: Enable HBA heartbeat timer..
3258 # 0 = HBA Heartbeat disabled
3259 # 1 = HBA Heartbeat enabled (default)
3260 # Value range is [0,1]. Default value is 1.
3262 LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat.");
3265 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
3266 # 0 = BlockGuard disabled (default)
3267 # 1 = BlockGuard enabled
3268 # Value range is [0,1]. Default value is 0.
3270 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
3274 # - Bit mask of host protection capabilities used to register with the
3276 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
3277 # - Allows you to ultimately specify which profiles to use
3278 # - Default will result in registering capabilities for all profiles.
3281 unsigned int lpfc_prot_mask = SHOST_DIX_TYPE0_PROTECTION;
3283 module_param(lpfc_prot_mask, uint, 0);
3284 MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
3287 # lpfc_prot_guard: i
3288 # - Bit mask of protection guard types to register with the SCSI mid-layer
3289 # - Guard types are currently either 1) IP checksum 2) T10-DIF CRC
3290 # - Allows you to ultimately specify which profiles to use
3291 # - Default will result in registering capabilities for all guard types
3294 unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
3295 module_param(lpfc_prot_guard, byte, 0);
3296 MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
3300 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
3301 * This value can be set to values between 64 and 256. The default value is
3302 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
3303 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
3305 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
3306 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
3308 LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_PROT_SG_SEG_CNT,
3309 LPFC_DEFAULT_PROT_SG_SEG_CNT, LPFC_MAX_PROT_SG_SEG_CNT,
3310 "Max Protection Scatter Gather Segment Count");
3312 struct device_attribute *lpfc_hba_attrs[] = {
3314 &dev_attr_bg_guard_err,
3315 &dev_attr_bg_apptag_err,
3316 &dev_attr_bg_reftag_err,
3318 &dev_attr_serialnum,
3319 &dev_attr_modeldesc,
3320 &dev_attr_modelname,
3321 &dev_attr_programtype,
3325 &dev_attr_option_rom_version,
3326 &dev_attr_link_state,
3327 &dev_attr_num_discovered_ports,
3328 &dev_attr_menlo_mgmt_mode,
3329 &dev_attr_lpfc_drvr_version,
3330 &dev_attr_lpfc_enable_fip,
3331 &dev_attr_lpfc_temp_sensor,
3332 &dev_attr_lpfc_log_verbose,
3333 &dev_attr_lpfc_lun_queue_depth,
3334 &dev_attr_lpfc_tgt_queue_depth,
3335 &dev_attr_lpfc_hba_queue_depth,
3336 &dev_attr_lpfc_peer_port_login,
3337 &dev_attr_lpfc_nodev_tmo,
3338 &dev_attr_lpfc_devloss_tmo,
3339 &dev_attr_lpfc_fcp_class,
3340 &dev_attr_lpfc_use_adisc,
3341 &dev_attr_lpfc_ack0,
3342 &dev_attr_lpfc_topology,
3343 &dev_attr_lpfc_scan_down,
3344 &dev_attr_lpfc_link_speed,
3345 &dev_attr_lpfc_cr_delay,
3346 &dev_attr_lpfc_cr_count,
3347 &dev_attr_lpfc_multi_ring_support,
3348 &dev_attr_lpfc_multi_ring_rctl,
3349 &dev_attr_lpfc_multi_ring_type,
3350 &dev_attr_lpfc_fdmi_on,
3351 &dev_attr_lpfc_max_luns,
3352 &dev_attr_lpfc_enable_npiv,
3353 &dev_attr_nport_evt_cnt,
3354 &dev_attr_board_mode,
3361 &dev_attr_npiv_info,
3362 &dev_attr_issue_reset,
3363 &dev_attr_lpfc_poll,
3364 &dev_attr_lpfc_poll_tmo,
3365 &dev_attr_lpfc_use_msi,
3366 &dev_attr_lpfc_fcp_imax,
3367 &dev_attr_lpfc_fcp_wq_count,
3368 &dev_attr_lpfc_fcp_eq_count,
3369 &dev_attr_lpfc_enable_bg,
3370 &dev_attr_lpfc_soft_wwnn,
3371 &dev_attr_lpfc_soft_wwpn,
3372 &dev_attr_lpfc_soft_wwn_enable,
3373 &dev_attr_lpfc_enable_hba_reset,
3374 &dev_attr_lpfc_enable_hba_heartbeat,
3375 &dev_attr_lpfc_sg_seg_cnt,
3376 &dev_attr_lpfc_max_scsicmpl_time,
3377 &dev_attr_lpfc_stat_data_ctrl,
3378 &dev_attr_lpfc_prot_sg_seg_cnt,
3379 &dev_attr_lpfc_aer_support,
3380 &dev_attr_lpfc_aer_state_cleanup,
3381 &dev_attr_lpfc_suppress_link_up,
3382 &dev_attr_lpfc_iocb_cnt,
3385 &dev_attr_txcmplq_hw,
3389 struct device_attribute *lpfc_vport_attrs[] = {
3391 &dev_attr_link_state,
3392 &dev_attr_num_discovered_ports,
3393 &dev_attr_lpfc_drvr_version,
3394 &dev_attr_lpfc_log_verbose,
3395 &dev_attr_lpfc_lun_queue_depth,
3396 &dev_attr_lpfc_tgt_queue_depth,
3397 &dev_attr_lpfc_nodev_tmo,
3398 &dev_attr_lpfc_devloss_tmo,
3399 &dev_attr_lpfc_hba_queue_depth,
3400 &dev_attr_lpfc_peer_port_login,
3401 &dev_attr_lpfc_restrict_login,
3402 &dev_attr_lpfc_fcp_class,
3403 &dev_attr_lpfc_use_adisc,
3404 &dev_attr_lpfc_fdmi_on,
3405 &dev_attr_lpfc_max_luns,
3406 &dev_attr_nport_evt_cnt,
3407 &dev_attr_npiv_info,
3408 &dev_attr_lpfc_enable_da_id,
3409 &dev_attr_lpfc_max_scsicmpl_time,
3410 &dev_attr_lpfc_stat_data_ctrl,
3411 &dev_attr_lpfc_static_vport,
3416 * sysfs_ctlreg_write - Write method for writing to ctlreg
3417 * @filp: open sysfs file
3418 * @kobj: kernel kobject that contains the kernel class device.
3419 * @bin_attr: kernel attributes passed to us.
3420 * @buf: contains the data to be written to the adapter IOREG space.
3421 * @off: offset into buffer to beginning of data.
3422 * @count: bytes to transfer.
3425 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
3426 * Uses the adapter io control registers to send buf contents to the adapter.
3429 * -ERANGE off and count combo out of range
3430 * -EINVAL off, count or buff address invalid
3431 * -EPERM adapter is offline
3432 * value of count, buf contents written
3435 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
3436 struct bin_attribute *bin_attr,
3437 char *buf, loff_t off, size_t count)
3440 struct device *dev = container_of(kobj, struct device, kobj);
3441 struct Scsi_Host *shost = class_to_shost(dev);
3442 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3443 struct lpfc_hba *phba = vport->phba;
3445 if (phba->sli_rev >= LPFC_SLI_REV4)
3448 if ((off + count) > FF_REG_AREA_SIZE)
3451 if (count == 0) return 0;
3453 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3456 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3460 spin_lock_irq(&phba->hbalock);
3461 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
3462 writel(*((uint32_t *)(buf + buf_off)),
3463 phba->ctrl_regs_memmap_p + off + buf_off);
3465 spin_unlock_irq(&phba->hbalock);
3471 * sysfs_ctlreg_read - Read method for reading from ctlreg
3472 * @filp: open sysfs file
3473 * @kobj: kernel kobject that contains the kernel class device.
3474 * @bin_attr: kernel attributes passed to us.
3475 * @buf: if successful contains the data from the adapter IOREG space.
3476 * @off: offset into buffer to beginning of data.
3477 * @count: bytes to transfer.
3480 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
3481 * Uses the adapter io control registers to read data into buf.
3484 * -ERANGE off and count combo out of range
3485 * -EINVAL off, count or buff address invalid
3486 * value of count, buf contents read
3489 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
3490 struct bin_attribute *bin_attr,
3491 char *buf, loff_t off, size_t count)
3495 struct device *dev = container_of(kobj, struct device, kobj);
3496 struct Scsi_Host *shost = class_to_shost(dev);
3497 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3498 struct lpfc_hba *phba = vport->phba;
3500 if (phba->sli_rev >= LPFC_SLI_REV4)
3503 if (off > FF_REG_AREA_SIZE)
3506 if ((off + count) > FF_REG_AREA_SIZE)
3507 count = FF_REG_AREA_SIZE - off;
3509 if (count == 0) return 0;
3511 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3514 spin_lock_irq(&phba->hbalock);
3516 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
3517 tmp_ptr = (uint32_t *)(buf + buf_off);
3518 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
3521 spin_unlock_irq(&phba->hbalock);
3526 static struct bin_attribute sysfs_ctlreg_attr = {
3529 .mode = S_IRUSR | S_IWUSR,
3532 .read = sysfs_ctlreg_read,
3533 .write = sysfs_ctlreg_write,
3537 * sysfs_mbox_idle - frees the sysfs mailbox
3538 * @phba: lpfc_hba pointer
3541 sysfs_mbox_idle(struct lpfc_hba *phba)
3543 phba->sysfs_mbox.state = SMBOX_IDLE;
3544 phba->sysfs_mbox.offset = 0;
3546 if (phba->sysfs_mbox.mbox) {
3547 mempool_free(phba->sysfs_mbox.mbox,
3548 phba->mbox_mem_pool);
3549 phba->sysfs_mbox.mbox = NULL;
3554 * sysfs_mbox_write - Write method for writing information via mbox
3555 * @filp: open sysfs file
3556 * @kobj: kernel kobject that contains the kernel class device.
3557 * @bin_attr: kernel attributes passed to us.
3558 * @buf: contains the data to be written to sysfs mbox.
3559 * @off: offset into buffer to beginning of data.
3560 * @count: bytes to transfer.
3563 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3564 * Uses the sysfs mbox to send buf contents to the adapter.
3567 * -ERANGE off and count combo out of range
3568 * -EINVAL off, count or buff address invalid
3569 * zero if count is zero
3570 * -EPERM adapter is offline
3571 * -ENOMEM failed to allocate memory for the mail box
3572 * -EAGAIN offset, state or mbox is NULL
3573 * count number of bytes transferred
3576 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
3577 struct bin_attribute *bin_attr,
3578 char *buf, loff_t off, size_t count)
3580 struct device *dev = container_of(kobj, struct device, kobj);
3581 struct Scsi_Host *shost = class_to_shost(dev);
3582 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3583 struct lpfc_hba *phba = vport->phba;
3584 struct lpfcMboxq *mbox = NULL;
3586 if ((count + off) > MAILBOX_CMD_SIZE)
3589 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3596 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3599 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
3602 spin_lock_irq(&phba->hbalock);
3605 if (phba->sysfs_mbox.mbox)
3606 mempool_free(mbox, phba->mbox_mem_pool);
3608 phba->sysfs_mbox.mbox = mbox;
3609 phba->sysfs_mbox.state = SMBOX_WRITING;
3611 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
3612 phba->sysfs_mbox.offset != off ||
3613 phba->sysfs_mbox.mbox == NULL) {
3614 sysfs_mbox_idle(phba);
3615 spin_unlock_irq(&phba->hbalock);
3620 memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off,
3623 phba->sysfs_mbox.offset = off + count;
3625 spin_unlock_irq(&phba->hbalock);
3631 * sysfs_mbox_read - Read method for reading information via mbox
3632 * @filp: open sysfs file
3633 * @kobj: kernel kobject that contains the kernel class device.
3634 * @bin_attr: kernel attributes passed to us.
3635 * @buf: contains the data to be read from sysfs mbox.
3636 * @off: offset into buffer to beginning of data.
3637 * @count: bytes to transfer.
3640 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3641 * Uses the sysfs mbox to receive data from to the adapter.
3644 * -ERANGE off greater than mailbox command size
3645 * -EINVAL off, count or buff address invalid
3646 * zero if off and count are zero
3647 * -EACCES adapter over temp
3648 * -EPERM garbage can value to catch a multitude of errors
3649 * -EAGAIN management IO not permitted, state or off error
3650 * -ETIME mailbox timeout
3651 * -ENODEV mailbox error
3652 * count number of bytes transferred
3655 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
3656 struct bin_attribute *bin_attr,
3657 char *buf, loff_t off, size_t count)
3659 struct device *dev = container_of(kobj, struct device, kobj);
3660 struct Scsi_Host *shost = class_to_shost(dev);
3661 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3662 struct lpfc_hba *phba = vport->phba;
3666 if (off > MAILBOX_CMD_SIZE)
3669 if ((count + off) > MAILBOX_CMD_SIZE)
3670 count = MAILBOX_CMD_SIZE - off;
3672 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3675 if (off && count == 0)
3678 spin_lock_irq(&phba->hbalock);
3680 if (phba->over_temp_state == HBA_OVER_TEMP) {
3681 sysfs_mbox_idle(phba);
3682 spin_unlock_irq(&phba->hbalock);
3687 phba->sysfs_mbox.state == SMBOX_WRITING &&
3688 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
3689 pmb = &phba->sysfs_mbox.mbox->u.mb;
3690 switch (pmb->mbxCommand) {
3694 case MBX_CONFIG_LINK:
3695 case MBX_CONFIG_RING:
3696 case MBX_RESET_RING:
3697 case MBX_UNREG_LOGIN:
3699 case MBX_DUMP_CONTEXT:
3704 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3705 printk(KERN_WARNING "mbox_read:Command 0x%x "
3706 "is illegal in on-line state\n",
3708 sysfs_mbox_idle(phba);
3709 spin_unlock_irq(&phba->hbalock);
3713 case MBX_WRITE_VPARMS:
3716 case MBX_READ_CONFIG:
3717 case MBX_READ_RCONFIG:
3718 case MBX_READ_STATUS:
3721 case MBX_READ_LNK_STAT:
3722 case MBX_DUMP_MEMORY:
3724 case MBX_UPDATE_CFG:
3725 case MBX_KILL_BOARD:
3727 case MBX_LOAD_EXP_ROM:
3729 case MBX_DEL_LD_ENTRY:
3730 case MBX_SET_VARIABLE:
3732 case MBX_PORT_CAPABILITIES:
3733 case MBX_PORT_IOV_CONTROL:
3735 case MBX_READ_SPARM64:
3739 case MBX_REG_LOGIN64:
3740 case MBX_CONFIG_PORT:
3741 case MBX_RUN_BIU_DIAG:
3742 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
3744 sysfs_mbox_idle(phba);
3745 spin_unlock_irq(&phba->hbalock);
3748 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
3750 sysfs_mbox_idle(phba);
3751 spin_unlock_irq(&phba->hbalock);
3755 /* If HBA encountered an error attention, allow only DUMP
3756 * or RESTART mailbox commands until the HBA is restarted.
3758 if (phba->pport->stopped &&
3759 pmb->mbxCommand != MBX_DUMP_MEMORY &&
3760 pmb->mbxCommand != MBX_RESTART &&
3761 pmb->mbxCommand != MBX_WRITE_VPARMS &&
3762 pmb->mbxCommand != MBX_WRITE_WWN)
3763 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
3764 "1259 mbox: Issued mailbox cmd "
3765 "0x%x while in stopped state.\n",
3768 phba->sysfs_mbox.mbox->vport = vport;
3770 /* Don't allow mailbox commands to be sent when blocked
3771 * or when in the middle of discovery
3773 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
3774 sysfs_mbox_idle(phba);
3775 spin_unlock_irq(&phba->hbalock);
3779 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
3780 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
3782 spin_unlock_irq(&phba->hbalock);
3783 rc = lpfc_sli_issue_mbox (phba,
3784 phba->sysfs_mbox.mbox,
3786 spin_lock_irq(&phba->hbalock);
3789 spin_unlock_irq(&phba->hbalock);
3790 rc = lpfc_sli_issue_mbox_wait (phba,
3791 phba->sysfs_mbox.mbox,
3792 lpfc_mbox_tmo_val(phba, pmb->mbxCommand) * HZ);
3793 spin_lock_irq(&phba->hbalock);
3796 if (rc != MBX_SUCCESS) {
3797 if (rc == MBX_TIMEOUT) {
3798 phba->sysfs_mbox.mbox = NULL;
3800 sysfs_mbox_idle(phba);
3801 spin_unlock_irq(&phba->hbalock);
3802 return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
3804 phba->sysfs_mbox.state = SMBOX_READING;
3806 else if (phba->sysfs_mbox.offset != off ||
3807 phba->sysfs_mbox.state != SMBOX_READING) {
3808 printk(KERN_WARNING "mbox_read: Bad State\n");
3809 sysfs_mbox_idle(phba);
3810 spin_unlock_irq(&phba->hbalock);
3814 memcpy(buf, (uint8_t *) &pmb + off, count);
3816 phba->sysfs_mbox.offset = off + count;
3818 if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
3819 sysfs_mbox_idle(phba);
3821 spin_unlock_irq(&phba->hbalock);
3826 static struct bin_attribute sysfs_mbox_attr = {
3829 .mode = S_IRUSR | S_IWUSR,
3831 .size = MAILBOX_CMD_SIZE,
3832 .read = sysfs_mbox_read,
3833 .write = sysfs_mbox_write,
3837 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
3838 * @vport: address of lpfc vport structure.
3842 * error return code from sysfs_create_bin_file()
3845 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
3847 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3850 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3851 &sysfs_drvr_stat_data_attr);
3853 /* Virtual ports do not need ctrl_reg and mbox */
3854 if (error || vport->port_type == LPFC_NPIV_PORT)
3857 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3858 &sysfs_ctlreg_attr);
3860 goto out_remove_stat_attr;
3862 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3865 goto out_remove_ctlreg_attr;
3868 out_remove_ctlreg_attr:
3869 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
3870 out_remove_stat_attr:
3871 sysfs_remove_bin_file(&shost->shost_dev.kobj,
3872 &sysfs_drvr_stat_data_attr);
3878 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
3879 * @vport: address of lpfc vport structure.
3882 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
3884 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3885 sysfs_remove_bin_file(&shost->shost_dev.kobj,
3886 &sysfs_drvr_stat_data_attr);
3887 /* Virtual ports do not need ctrl_reg and mbox */
3888 if (vport->port_type == LPFC_NPIV_PORT)
3890 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
3891 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
3896 * Dynamic FC Host Attributes Support
3900 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
3901 * @shost: kernel scsi host pointer.
3904 lpfc_get_host_port_id(struct Scsi_Host *shost)
3906 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3908 /* note: fc_myDID already in cpu endianness */
3909 fc_host_port_id(shost) = vport->fc_myDID;
3913 * lpfc_get_host_port_type - Set the value of the scsi host port type
3914 * @shost: kernel scsi host pointer.
3917 lpfc_get_host_port_type(struct Scsi_Host *shost)
3919 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3920 struct lpfc_hba *phba = vport->phba;
3922 spin_lock_irq(shost->host_lock);
3924 if (vport->port_type == LPFC_NPIV_PORT) {
3925 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
3926 } else if (lpfc_is_link_up(phba)) {
3927 if (phba->fc_topology == TOPOLOGY_LOOP) {
3928 if (vport->fc_flag & FC_PUBLIC_LOOP)
3929 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
3931 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
3933 if (vport->fc_flag & FC_FABRIC)
3934 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
3936 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
3939 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
3941 spin_unlock_irq(shost->host_lock);
3945 * lpfc_get_host_port_state - Set the value of the scsi host port state
3946 * @shost: kernel scsi host pointer.
3949 lpfc_get_host_port_state(struct Scsi_Host *shost)
3951 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3952 struct lpfc_hba *phba = vport->phba;
3954 spin_lock_irq(shost->host_lock);
3956 if (vport->fc_flag & FC_OFFLINE_MODE)
3957 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
3959 switch (phba->link_state) {
3960 case LPFC_LINK_UNKNOWN:
3961 case LPFC_LINK_DOWN:
3962 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
3966 case LPFC_HBA_READY:
3967 /* Links up, beyond this port_type reports state */
3968 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
3970 case LPFC_HBA_ERROR:
3971 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
3974 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
3979 spin_unlock_irq(shost->host_lock);
3983 * lpfc_get_host_speed - Set the value of the scsi host speed
3984 * @shost: kernel scsi host pointer.
3987 lpfc_get_host_speed(struct Scsi_Host *shost)
3989 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3990 struct lpfc_hba *phba = vport->phba;
3992 spin_lock_irq(shost->host_lock);
3994 if (lpfc_is_link_up(phba)) {
3995 switch(phba->fc_linkspeed) {
3997 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
4000 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
4003 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
4006 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
4009 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
4012 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
4016 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
4018 spin_unlock_irq(shost->host_lock);
4022 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
4023 * @shost: kernel scsi host pointer.
4026 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
4028 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4029 struct lpfc_hba *phba = vport->phba;
4032 spin_lock_irq(shost->host_lock);
4034 if ((vport->fc_flag & FC_FABRIC) ||
4035 ((phba->fc_topology == TOPOLOGY_LOOP) &&
4036 (vport->fc_flag & FC_PUBLIC_LOOP)))
4037 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
4039 /* fabric is local port if there is no F/FL_Port */
4042 spin_unlock_irq(shost->host_lock);
4044 fc_host_fabric_name(shost) = node_name;
4048 * lpfc_get_stats - Return statistical information about the adapter
4049 * @shost: kernel scsi host pointer.
4052 * NULL on error for link down, no mbox pool, sli2 active,
4053 * management not allowed, memory allocation error, or mbox error.
4057 * address of the adapter host statistics
4059 static struct fc_host_statistics *
4060 lpfc_get_stats(struct Scsi_Host *shost)
4062 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4063 struct lpfc_hba *phba = vport->phba;
4064 struct lpfc_sli *psli = &phba->sli;
4065 struct fc_host_statistics *hs = &phba->link_stats;
4066 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
4067 LPFC_MBOXQ_t *pmboxq;
4069 unsigned long seconds;
4073 * prevent udev from issuing mailbox commands until the port is
4076 if (phba->link_state < LPFC_LINK_DOWN ||
4077 !phba->mbox_mem_pool ||
4078 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
4081 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4084 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4087 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
4089 pmb = &pmboxq->u.mb;
4090 pmb->mbxCommand = MBX_READ_STATUS;
4091 pmb->mbxOwner = OWN_HOST;
4092 pmboxq->context1 = NULL;
4093 pmboxq->vport = vport;
4095 if (vport->fc_flag & FC_OFFLINE_MODE)
4096 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4098 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4100 if (rc != MBX_SUCCESS) {
4101 if (rc != MBX_TIMEOUT)
4102 mempool_free(pmboxq, phba->mbox_mem_pool);
4106 memset(hs, 0, sizeof (struct fc_host_statistics));
4108 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
4109 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
4110 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
4111 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
4113 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
4114 pmb->mbxCommand = MBX_READ_LNK_STAT;
4115 pmb->mbxOwner = OWN_HOST;
4116 pmboxq->context1 = NULL;
4117 pmboxq->vport = vport;
4119 if (vport->fc_flag & FC_OFFLINE_MODE)
4120 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4122 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4124 if (rc != MBX_SUCCESS) {
4125 if (rc != MBX_TIMEOUT)
4126 mempool_free(pmboxq, phba->mbox_mem_pool);
4130 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
4131 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
4132 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
4133 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
4134 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
4135 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
4136 hs->error_frames = pmb->un.varRdLnk.crcCnt;
4138 hs->link_failure_count -= lso->link_failure_count;
4139 hs->loss_of_sync_count -= lso->loss_of_sync_count;
4140 hs->loss_of_signal_count -= lso->loss_of_signal_count;
4141 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
4142 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
4143 hs->invalid_crc_count -= lso->invalid_crc_count;
4144 hs->error_frames -= lso->error_frames;
4146 if (phba->hba_flag & HBA_FCOE_SUPPORT) {
4148 hs->nos_count = (phba->link_events >> 1);
4149 hs->nos_count -= lso->link_events;
4150 } else if (phba->fc_topology == TOPOLOGY_LOOP) {
4151 hs->lip_count = (phba->fc_eventTag >> 1);
4152 hs->lip_count -= lso->link_events;
4156 hs->nos_count = (phba->fc_eventTag >> 1);
4157 hs->nos_count -= lso->link_events;
4160 hs->dumped_frames = -1;
4162 seconds = get_seconds();
4163 if (seconds < psli->stats_start)
4164 hs->seconds_since_last_reset = seconds +
4165 ((unsigned long)-1 - psli->stats_start);
4167 hs->seconds_since_last_reset = seconds - psli->stats_start;
4169 mempool_free(pmboxq, phba->mbox_mem_pool);
4175 * lpfc_reset_stats - Copy the adapter link stats information
4176 * @shost: kernel scsi host pointer.
4179 lpfc_reset_stats(struct Scsi_Host *shost)
4181 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4182 struct lpfc_hba *phba = vport->phba;
4183 struct lpfc_sli *psli = &phba->sli;
4184 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
4185 LPFC_MBOXQ_t *pmboxq;
4189 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4192 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4195 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4197 pmb = &pmboxq->u.mb;
4198 pmb->mbxCommand = MBX_READ_STATUS;
4199 pmb->mbxOwner = OWN_HOST;
4200 pmb->un.varWords[0] = 0x1; /* reset request */
4201 pmboxq->context1 = NULL;
4202 pmboxq->vport = vport;
4204 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4205 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4206 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4208 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4210 if (rc != MBX_SUCCESS) {
4211 if (rc != MBX_TIMEOUT)
4212 mempool_free(pmboxq, phba->mbox_mem_pool);
4216 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4217 pmb->mbxCommand = MBX_READ_LNK_STAT;
4218 pmb->mbxOwner = OWN_HOST;
4219 pmboxq->context1 = NULL;
4220 pmboxq->vport = vport;
4222 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4223 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4224 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4226 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4228 if (rc != MBX_SUCCESS) {
4229 if (rc != MBX_TIMEOUT)
4230 mempool_free( pmboxq, phba->mbox_mem_pool);
4234 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
4235 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
4236 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
4237 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
4238 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
4239 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
4240 lso->error_frames = pmb->un.varRdLnk.crcCnt;
4241 if (phba->hba_flag & HBA_FCOE_SUPPORT)
4242 lso->link_events = (phba->link_events >> 1);
4244 lso->link_events = (phba->fc_eventTag >> 1);
4246 psli->stats_start = get_seconds();
4248 mempool_free(pmboxq, phba->mbox_mem_pool);
4254 * The LPFC driver treats linkdown handling as target loss events so there
4255 * are no sysfs handlers for link_down_tmo.
4259 * lpfc_get_node_by_target - Return the nodelist for a target
4260 * @starget: kernel scsi target pointer.
4263 * address of the node list if found
4264 * NULL target not found
4266 static struct lpfc_nodelist *
4267 lpfc_get_node_by_target(struct scsi_target *starget)
4269 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
4270 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4271 struct lpfc_nodelist *ndlp;
4273 spin_lock_irq(shost->host_lock);
4274 /* Search for this, mapped, target ID */
4275 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4276 if (NLP_CHK_NODE_ACT(ndlp) &&
4277 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
4278 starget->id == ndlp->nlp_sid) {
4279 spin_unlock_irq(shost->host_lock);
4283 spin_unlock_irq(shost->host_lock);
4288 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
4289 * @starget: kernel scsi target pointer.
4292 lpfc_get_starget_port_id(struct scsi_target *starget)
4294 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4296 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
4300 * lpfc_get_starget_node_name - Set the target node name
4301 * @starget: kernel scsi target pointer.
4303 * Description: Set the target node name to the ndlp node name wwn or zero.
4306 lpfc_get_starget_node_name(struct scsi_target *starget)
4308 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4310 fc_starget_node_name(starget) =
4311 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
4315 * lpfc_get_starget_port_name - Set the target port name
4316 * @starget: kernel scsi target pointer.
4318 * Description: set the target port name to the ndlp port name wwn or zero.
4321 lpfc_get_starget_port_name(struct scsi_target *starget)
4323 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4325 fc_starget_port_name(starget) =
4326 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
4330 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
4331 * @rport: fc rport address.
4332 * @timeout: new value for dev loss tmo.
4335 * If timeout is non zero set the dev_loss_tmo to timeout, else set
4336 * dev_loss_tmo to one.
4339 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
4342 rport->dev_loss_tmo = timeout;
4344 rport->dev_loss_tmo = 1;
4348 * lpfc_rport_show_function - Return rport target information
4351 * Macro that uses field to generate a function with the name lpfc_show_rport_
4353 * lpfc_show_rport_##field: returns the bytes formatted in buf
4354 * @cdev: class converted to an fc_rport.
4355 * @buf: on return contains the target_field or zero.
4357 * Returns: size of formatted string.
4359 #define lpfc_rport_show_function(field, format_string, sz, cast) \
4361 lpfc_show_rport_##field (struct device *dev, \
4362 struct device_attribute *attr, \
4365 struct fc_rport *rport = transport_class_to_rport(dev); \
4366 struct lpfc_rport_data *rdata = rport->hostdata; \
4367 return snprintf(buf, sz, format_string, \
4368 (rdata->target) ? cast rdata->target->field : 0); \
4371 #define lpfc_rport_rd_attr(field, format_string, sz) \
4372 lpfc_rport_show_function(field, format_string, sz, ) \
4373 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
4376 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
4377 * @fc_vport: The fc_vport who's symbolic name has been changed.
4380 * This function is called by the transport after the @fc_vport's symbolic name
4381 * has been changed. This function re-registers the symbolic name with the
4382 * switch to propogate the change into the fabric if the vport is active.
4385 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
4387 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
4389 if (vport->port_state == LPFC_VPORT_READY)
4390 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
4394 * lpfc_hba_log_verbose_init - Set hba's log verbose level
4395 * @phba: Pointer to lpfc_hba struct.
4397 * This function is called by the lpfc_get_cfgparam() routine to set the
4398 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
4399 * log messsage according to the module's lpfc_log_verbose parameter setting
4400 * before hba port or vport created.
4403 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
4405 phba->cfg_log_verbose = verbose;
4408 struct fc_function_template lpfc_transport_functions = {
4409 /* fixed attributes the driver supports */
4410 .show_host_node_name = 1,
4411 .show_host_port_name = 1,
4412 .show_host_supported_classes = 1,
4413 .show_host_supported_fc4s = 1,
4414 .show_host_supported_speeds = 1,
4415 .show_host_maxframe_size = 1,
4416 .show_host_symbolic_name = 1,
4418 /* dynamic attributes the driver supports */
4419 .get_host_port_id = lpfc_get_host_port_id,
4420 .show_host_port_id = 1,
4422 .get_host_port_type = lpfc_get_host_port_type,
4423 .show_host_port_type = 1,
4425 .get_host_port_state = lpfc_get_host_port_state,
4426 .show_host_port_state = 1,
4428 /* active_fc4s is shown but doesn't change (thus no get function) */
4429 .show_host_active_fc4s = 1,
4431 .get_host_speed = lpfc_get_host_speed,
4432 .show_host_speed = 1,
4434 .get_host_fabric_name = lpfc_get_host_fabric_name,
4435 .show_host_fabric_name = 1,
4438 * The LPFC driver treats linkdown handling as target loss events
4439 * so there are no sysfs handlers for link_down_tmo.
4442 .get_fc_host_stats = lpfc_get_stats,
4443 .reset_fc_host_stats = lpfc_reset_stats,
4445 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
4446 .show_rport_maxframe_size = 1,
4447 .show_rport_supported_classes = 1,
4449 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
4450 .show_rport_dev_loss_tmo = 1,
4452 .get_starget_port_id = lpfc_get_starget_port_id,
4453 .show_starget_port_id = 1,
4455 .get_starget_node_name = lpfc_get_starget_node_name,
4456 .show_starget_node_name = 1,
4458 .get_starget_port_name = lpfc_get_starget_port_name,
4459 .show_starget_port_name = 1,
4461 .issue_fc_host_lip = lpfc_issue_lip,
4462 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
4463 .terminate_rport_io = lpfc_terminate_rport_io,
4465 .dd_fcvport_size = sizeof(struct lpfc_vport *),
4467 .vport_disable = lpfc_vport_disable,
4469 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4471 .bsg_request = lpfc_bsg_request,
4472 .bsg_timeout = lpfc_bsg_timeout,
4475 struct fc_function_template lpfc_vport_transport_functions = {
4476 /* fixed attributes the driver supports */
4477 .show_host_node_name = 1,
4478 .show_host_port_name = 1,
4479 .show_host_supported_classes = 1,
4480 .show_host_supported_fc4s = 1,
4481 .show_host_supported_speeds = 1,
4482 .show_host_maxframe_size = 1,
4483 .show_host_symbolic_name = 1,
4485 /* dynamic attributes the driver supports */
4486 .get_host_port_id = lpfc_get_host_port_id,
4487 .show_host_port_id = 1,
4489 .get_host_port_type = lpfc_get_host_port_type,
4490 .show_host_port_type = 1,
4492 .get_host_port_state = lpfc_get_host_port_state,
4493 .show_host_port_state = 1,
4495 /* active_fc4s is shown but doesn't change (thus no get function) */
4496 .show_host_active_fc4s = 1,
4498 .get_host_speed = lpfc_get_host_speed,
4499 .show_host_speed = 1,
4501 .get_host_fabric_name = lpfc_get_host_fabric_name,
4502 .show_host_fabric_name = 1,
4505 * The LPFC driver treats linkdown handling as target loss events
4506 * so there are no sysfs handlers for link_down_tmo.
4509 .get_fc_host_stats = lpfc_get_stats,
4510 .reset_fc_host_stats = lpfc_reset_stats,
4512 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
4513 .show_rport_maxframe_size = 1,
4514 .show_rport_supported_classes = 1,
4516 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
4517 .show_rport_dev_loss_tmo = 1,
4519 .get_starget_port_id = lpfc_get_starget_port_id,
4520 .show_starget_port_id = 1,
4522 .get_starget_node_name = lpfc_get_starget_node_name,
4523 .show_starget_node_name = 1,
4525 .get_starget_port_name = lpfc_get_starget_port_name,
4526 .show_starget_port_name = 1,
4528 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
4529 .terminate_rport_io = lpfc_terminate_rport_io,
4531 .vport_disable = lpfc_vport_disable,
4533 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4537 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
4538 * @phba: lpfc_hba pointer.
4541 lpfc_get_cfgparam(struct lpfc_hba *phba)
4543 lpfc_cr_delay_init(phba, lpfc_cr_delay);
4544 lpfc_cr_count_init(phba, lpfc_cr_count);
4545 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
4546 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
4547 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
4548 lpfc_ack0_init(phba, lpfc_ack0);
4549 lpfc_topology_init(phba, lpfc_topology);
4550 lpfc_link_speed_init(phba, lpfc_link_speed);
4551 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
4552 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
4553 lpfc_use_msi_init(phba, lpfc_use_msi);
4554 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
4555 lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count);
4556 lpfc_fcp_eq_count_init(phba, lpfc_fcp_eq_count);
4557 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
4558 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
4559 lpfc_enable_bg_init(phba, lpfc_enable_bg);
4560 if (phba->sli_rev == LPFC_SLI_REV4)
4563 phba->cfg_poll = lpfc_poll;
4564 phba->cfg_soft_wwnn = 0L;
4565 phba->cfg_soft_wwpn = 0L;
4566 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
4567 lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
4568 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
4569 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
4570 lpfc_aer_support_init(phba, lpfc_aer_support);
4571 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
4572 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
4577 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
4578 * @vport: lpfc_vport pointer.
4581 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
4583 lpfc_log_verbose_init(vport, lpfc_log_verbose);
4584 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
4585 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
4586 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
4587 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
4588 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
4589 lpfc_restrict_login_init(vport, lpfc_restrict_login);
4590 lpfc_fcp_class_init(vport, lpfc_fcp_class);
4591 lpfc_use_adisc_init(vport, lpfc_use_adisc);
4592 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
4593 lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
4594 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
4595 lpfc_max_luns_init(vport, lpfc_max_luns);
4596 lpfc_scan_down_init(vport, lpfc_scan_down);
4597 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);