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>
29 #include <scsi/scsi.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_tcq.h>
33 #include <scsi/scsi_transport_fc.h>
34 #include <scsi/fc/fc_fs.h>
39 #include "lpfc_sli4.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
44 #include "lpfc_logmsg.h"
45 #include "lpfc_version.h"
46 #include "lpfc_compat.h"
47 #include "lpfc_crtn.h"
48 #include "lpfc_vport.h"
50 #define LPFC_DEF_DEVLOSS_TMO 30
51 #define LPFC_MIN_DEVLOSS_TMO 1
52 #define LPFC_MAX_DEVLOSS_TMO 255
54 #define LPFC_MAX_LINK_SPEED 8
55 #define LPFC_LINK_SPEED_BITMAP 0x00000117
56 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8"
59 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
60 * @incr: integer to convert.
61 * @hdw: ascii string holding converted integer plus a string terminator.
64 * JEDEC Joint Electron Device Engineering Council.
65 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
66 * character string. The string is then terminated with a NULL in byte 9.
67 * Hex 0-9 becomes ascii '0' to '9'.
68 * Hex a-f becomes ascii '=' to 'B' capital B.
71 * Coded for 32 bit integers only.
74 lpfc_jedec_to_ascii(int incr, char hdw[])
77 for (i = 0; i < 8; i++) {
80 hdw[7 - i] = 0x30 + j;
82 hdw[7 - i] = 0x61 + j - 10;
90 * lpfc_drvr_version_show - Return the Emulex driver string with version number
91 * @dev: class unused variable.
92 * @attr: device attribute, not used.
93 * @buf: on return contains the module description text.
95 * Returns: size of formatted string.
98 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
101 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
105 * lpfc_enable_fip_show - Return the fip mode of the HBA
106 * @dev: class unused variable.
107 * @attr: device attribute, not used.
108 * @buf: on return contains the module description text.
110 * Returns: size of formatted string.
113 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
116 struct Scsi_Host *shost = class_to_shost(dev);
117 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
118 struct lpfc_hba *phba = vport->phba;
120 if (phba->hba_flag & HBA_FIP_SUPPORT)
121 return snprintf(buf, PAGE_SIZE, "1\n");
123 return snprintf(buf, PAGE_SIZE, "0\n");
127 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
130 struct Scsi_Host *shost = class_to_shost(dev);
131 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
132 struct lpfc_hba *phba = vport->phba;
134 if (phba->cfg_enable_bg)
135 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
136 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
138 return snprintf(buf, PAGE_SIZE,
139 "BlockGuard Not Supported\n");
141 return snprintf(buf, PAGE_SIZE,
142 "BlockGuard Disabled\n");
146 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
149 struct Scsi_Host *shost = class_to_shost(dev);
150 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
151 struct lpfc_hba *phba = vport->phba;
153 return snprintf(buf, PAGE_SIZE, "%llu\n",
154 (unsigned long long)phba->bg_guard_err_cnt);
158 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
161 struct Scsi_Host *shost = class_to_shost(dev);
162 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
163 struct lpfc_hba *phba = vport->phba;
165 return snprintf(buf, PAGE_SIZE, "%llu\n",
166 (unsigned long long)phba->bg_apptag_err_cnt);
170 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
173 struct Scsi_Host *shost = class_to_shost(dev);
174 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
175 struct lpfc_hba *phba = vport->phba;
177 return snprintf(buf, PAGE_SIZE, "%llu\n",
178 (unsigned long long)phba->bg_reftag_err_cnt);
182 * lpfc_info_show - Return some pci info about the host in ascii
183 * @dev: class converted to a Scsi_host structure.
184 * @attr: device attribute, not used.
185 * @buf: on return contains the formatted text from lpfc_info().
187 * Returns: size of formatted string.
190 lpfc_info_show(struct device *dev, struct device_attribute *attr,
193 struct Scsi_Host *host = class_to_shost(dev);
195 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
199 * lpfc_serialnum_show - Return the hba serial number in ascii
200 * @dev: class converted to a Scsi_host structure.
201 * @attr: device attribute, not used.
202 * @buf: on return contains the formatted text serial number.
204 * Returns: size of formatted string.
207 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
210 struct Scsi_Host *shost = class_to_shost(dev);
211 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
212 struct lpfc_hba *phba = vport->phba;
214 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
218 * lpfc_temp_sensor_show - Return the temperature sensor level
219 * @dev: class converted to a Scsi_host structure.
220 * @attr: device attribute, not used.
221 * @buf: on return contains the formatted support level.
224 * Returns a number indicating the temperature sensor level currently
225 * supported, zero or one in ascii.
227 * Returns: size of formatted string.
230 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
233 struct Scsi_Host *shost = class_to_shost(dev);
234 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
235 struct lpfc_hba *phba = vport->phba;
236 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
240 * lpfc_modeldesc_show - Return the model description of the hba
241 * @dev: class converted to a Scsi_host structure.
242 * @attr: device attribute, not used.
243 * @buf: on return contains the scsi vpd model description.
245 * Returns: size of formatted string.
248 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
251 struct Scsi_Host *shost = class_to_shost(dev);
252 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
253 struct lpfc_hba *phba = vport->phba;
255 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
259 * lpfc_modelname_show - Return the model name of the hba
260 * @dev: class converted to a Scsi_host structure.
261 * @attr: device attribute, not used.
262 * @buf: on return contains the scsi vpd model name.
264 * Returns: size of formatted string.
267 lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
270 struct Scsi_Host *shost = class_to_shost(dev);
271 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
272 struct lpfc_hba *phba = vport->phba;
274 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
278 * lpfc_programtype_show - Return the program type of the hba
279 * @dev: class converted to a Scsi_host structure.
280 * @attr: device attribute, not used.
281 * @buf: on return contains the scsi vpd program type.
283 * Returns: size of formatted string.
286 lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
289 struct Scsi_Host *shost = class_to_shost(dev);
290 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
291 struct lpfc_hba *phba = vport->phba;
293 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
297 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
298 * @dev: class converted to a Scsi_host structure.
299 * @attr: device attribute, not used.
300 * @buf: on return contains the Menlo Maintenance sli flag.
302 * Returns: size of formatted string.
305 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
307 struct Scsi_Host *shost = class_to_shost(dev);
308 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
309 struct lpfc_hba *phba = vport->phba;
311 return snprintf(buf, PAGE_SIZE, "%d\n",
312 (phba->sli.sli_flag & LPFC_MENLO_MAINT));
316 * lpfc_vportnum_show - Return the port number in ascii of the hba
317 * @dev: class converted to a Scsi_host structure.
318 * @attr: device attribute, not used.
319 * @buf: on return contains scsi vpd program type.
321 * Returns: size of formatted string.
324 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
327 struct Scsi_Host *shost = class_to_shost(dev);
328 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
329 struct lpfc_hba *phba = vport->phba;
331 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
335 * lpfc_fwrev_show - Return the firmware rev running in the hba
336 * @dev: class converted to a Scsi_host structure.
337 * @attr: device attribute, not used.
338 * @buf: on return contains the scsi vpd program type.
340 * Returns: size of formatted string.
343 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
346 struct Scsi_Host *shost = class_to_shost(dev);
347 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
348 struct lpfc_hba *phba = vport->phba;
351 lpfc_decode_firmware_rev(phba, fwrev, 1);
352 return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
356 * lpfc_hdw_show - Return the jedec information about the hba
357 * @dev: class converted to a Scsi_host structure.
358 * @attr: device attribute, not used.
359 * @buf: on return contains the scsi vpd program type.
361 * Returns: size of formatted string.
364 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
367 struct Scsi_Host *shost = class_to_shost(dev);
368 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
369 struct lpfc_hba *phba = vport->phba;
370 lpfc_vpd_t *vp = &phba->vpd;
372 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
373 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
377 * lpfc_option_rom_version_show - Return the adapter ROM FCode version
378 * @dev: class converted to a Scsi_host structure.
379 * @attr: device attribute, not used.
380 * @buf: on return contains the ROM and FCode ascii strings.
382 * Returns: size of formatted string.
385 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
388 struct Scsi_Host *shost = class_to_shost(dev);
389 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
390 struct lpfc_hba *phba = vport->phba;
392 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
396 * lpfc_state_show - Return the link state of the port
397 * @dev: class converted to a Scsi_host structure.
398 * @attr: device attribute, not used.
399 * @buf: on return contains text describing the state of the link.
402 * The switch statement has no default so zero will be returned.
404 * Returns: size of formatted string.
407 lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
410 struct Scsi_Host *shost = class_to_shost(dev);
411 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
412 struct lpfc_hba *phba = vport->phba;
415 switch (phba->link_state) {
416 case LPFC_LINK_UNKNOWN:
417 case LPFC_WARM_START:
418 case LPFC_INIT_START:
419 case LPFC_INIT_MBX_CMDS:
422 if (phba->hba_flag & LINK_DISABLED)
423 len += snprintf(buf + len, PAGE_SIZE-len,
424 "Link Down - User disabled\n");
426 len += snprintf(buf + len, PAGE_SIZE-len,
432 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
434 switch (vport->port_state) {
435 case LPFC_LOCAL_CFG_LINK:
436 len += snprintf(buf + len, PAGE_SIZE-len,
437 "Configuring Link\n");
441 case LPFC_FABRIC_CFG_LINK:
444 case LPFC_BUILD_DISC_LIST:
446 len += snprintf(buf + len, PAGE_SIZE - len,
449 case LPFC_VPORT_READY:
450 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
453 case LPFC_VPORT_FAILED:
454 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
457 case LPFC_VPORT_UNKNOWN:
458 len += snprintf(buf + len, PAGE_SIZE - len,
462 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
463 len += snprintf(buf + len, PAGE_SIZE-len,
464 " Menlo Maint Mode\n");
465 else if (phba->fc_topology == TOPOLOGY_LOOP) {
466 if (vport->fc_flag & FC_PUBLIC_LOOP)
467 len += snprintf(buf + len, PAGE_SIZE-len,
470 len += snprintf(buf + len, PAGE_SIZE-len,
473 if (vport->fc_flag & FC_FABRIC)
474 len += snprintf(buf + len, PAGE_SIZE-len,
477 len += snprintf(buf + len, PAGE_SIZE-len,
486 * lpfc_link_state_store - Transition the link_state on an HBA port
487 * @dev: class device that is converted into a Scsi_host.
488 * @attr: device attribute, not used.
489 * @buf: one or more lpfc_polling_flags values.
493 * -EINVAL if the buffer is not "up" or "down"
494 * return from link state change function if non-zero
495 * length of the buf on success
498 lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
499 const char *buf, size_t count)
501 struct Scsi_Host *shost = class_to_shost(dev);
502 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
503 struct lpfc_hba *phba = vport->phba;
505 int status = -EINVAL;
507 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
508 (phba->link_state == LPFC_LINK_DOWN))
509 status = phba->lpfc_hba_init_link(phba);
510 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
511 (phba->link_state >= LPFC_LINK_UP))
512 status = phba->lpfc_hba_down_link(phba);
521 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
522 * @dev: class device that is converted into a Scsi_host.
523 * @attr: device attribute, not used.
524 * @buf: on return contains the sum of fc mapped and unmapped.
527 * Returns the ascii text number of the sum of the fc mapped and unmapped
530 * Returns: size of formatted string.
533 lpfc_num_discovered_ports_show(struct device *dev,
534 struct device_attribute *attr, char *buf)
536 struct Scsi_Host *shost = class_to_shost(dev);
537 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
539 return snprintf(buf, PAGE_SIZE, "%d\n",
540 vport->fc_map_cnt + vport->fc_unmap_cnt);
544 * lpfc_issue_lip - Misnomer, name carried over from long ago
545 * @shost: Scsi_Host pointer.
548 * Bring the link down gracefully then re-init the link. The firmware will
549 * re-init the fiber channel interface as required. Does not issue a LIP.
552 * -EPERM port offline or management commands are being blocked
553 * -ENOMEM cannot allocate memory for the mailbox command
554 * -EIO error sending the mailbox command
558 lpfc_issue_lip(struct Scsi_Host *shost)
560 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
561 struct lpfc_hba *phba = vport->phba;
562 LPFC_MBOXQ_t *pmboxq;
563 int mbxstatus = MBXERR_ERROR;
565 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
566 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
569 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
574 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
575 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
576 pmboxq->u.mb.mbxOwner = OWN_HOST;
578 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
580 if ((mbxstatus == MBX_SUCCESS) &&
581 (pmboxq->u.mb.mbxStatus == 0 ||
582 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
583 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
584 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
585 phba->cfg_link_speed);
586 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
590 lpfc_set_loopback_flag(phba);
591 if (mbxstatus != MBX_TIMEOUT)
592 mempool_free(pmboxq, phba->mbox_mem_pool);
594 if (mbxstatus == MBXERR_ERROR)
601 * lpfc_do_offline - Issues a mailbox command to bring the link down
602 * @phba: lpfc_hba pointer.
603 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
606 * Assumes any error from lpfc_do_offline() will be negative.
607 * Can wait up to 5 seconds for the port ring buffers count
608 * to reach zero, prints a warning if it is not zero and continues.
609 * lpfc_workq_post_event() returns a non-zero return code if call fails.
612 * -EIO error posting the event
616 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
618 struct completion online_compl;
619 struct lpfc_sli_ring *pring;
620 struct lpfc_sli *psli;
625 init_completion(&online_compl);
626 lpfc_workq_post_event(phba, &status, &online_compl,
627 LPFC_EVT_OFFLINE_PREP);
628 wait_for_completion(&online_compl);
635 /* Wait a little for things to settle down, but not
636 * long enough for dev loss timeout to expire.
638 for (i = 0; i < psli->num_rings; i++) {
639 pring = &psli->ring[i];
640 while (pring->txcmplq_cnt) {
642 if (cnt++ > 500) { /* 5 secs */
643 lpfc_printf_log(phba,
644 KERN_WARNING, LOG_INIT,
645 "0466 Outstanding IO when "
646 "bringing Adapter offline\n");
652 init_completion(&online_compl);
653 lpfc_workq_post_event(phba, &status, &online_compl, type);
654 wait_for_completion(&online_compl);
663 * lpfc_selective_reset - Offline then onlines the port
664 * @phba: lpfc_hba pointer.
667 * If the port is configured to allow a reset then the hba is brought
668 * offline then online.
671 * Assumes any error from lpfc_do_offline() will be negative.
674 * lpfc_do_offline() return code if not zero
675 * -EIO reset not configured or error posting the event
679 lpfc_selective_reset(struct lpfc_hba *phba)
681 struct completion online_compl;
684 if (!phba->cfg_enable_hba_reset)
687 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
692 init_completion(&online_compl);
693 lpfc_workq_post_event(phba, &status, &online_compl,
695 wait_for_completion(&online_compl);
704 * lpfc_issue_reset - Selectively resets an adapter
705 * @dev: class device that is converted into a Scsi_host.
706 * @attr: device attribute, not used.
707 * @buf: containing the string "selective".
708 * @count: unused variable.
711 * If the buf contains the string "selective" then lpfc_selective_reset()
712 * is called to perform the reset.
715 * Assumes any error from lpfc_selective_reset() will be negative.
716 * If lpfc_selective_reset() returns zero then the length of the buffer
717 * is returned which indicates success
720 * -EINVAL if the buffer does not contain the string "selective"
721 * length of buf if lpfc-selective_reset() if the call succeeds
722 * return value of lpfc_selective_reset() if the call fails
725 lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
726 const char *buf, size_t count)
728 struct Scsi_Host *shost = class_to_shost(dev);
729 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
730 struct lpfc_hba *phba = vport->phba;
732 int status = -EINVAL;
734 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
735 status = lpfc_selective_reset(phba);
744 * lpfc_nport_evt_cnt_show - Return the number of nport events
745 * @dev: class device that is converted into a Scsi_host.
746 * @attr: device attribute, not used.
747 * @buf: on return contains the ascii number of nport events.
749 * Returns: size of formatted string.
752 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
755 struct Scsi_Host *shost = class_to_shost(dev);
756 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
757 struct lpfc_hba *phba = vport->phba;
759 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
763 * lpfc_board_mode_show - Return the state of the board
764 * @dev: class device that is converted into a Scsi_host.
765 * @attr: device attribute, not used.
766 * @buf: on return contains the state of the adapter.
768 * Returns: size of formatted string.
771 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
774 struct Scsi_Host *shost = class_to_shost(dev);
775 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
776 struct lpfc_hba *phba = vport->phba;
779 if (phba->link_state == LPFC_HBA_ERROR)
781 else if (phba->link_state == LPFC_WARM_START)
782 state = "warm start";
783 else if (phba->link_state == LPFC_INIT_START)
788 return snprintf(buf, PAGE_SIZE, "%s\n", state);
792 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
793 * @dev: class device that is converted into a Scsi_host.
794 * @attr: device attribute, not used.
795 * @buf: containing one of the strings "online", "offline", "warm" or "error".
796 * @count: unused variable.
799 * -EACCES if enable hba reset not enabled
800 * -EINVAL if the buffer does not contain a valid string (see above)
801 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
802 * buf length greater than zero indicates success
805 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
806 const char *buf, size_t count)
808 struct Scsi_Host *shost = class_to_shost(dev);
809 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
810 struct lpfc_hba *phba = vport->phba;
811 struct completion online_compl;
814 if (!phba->cfg_enable_hba_reset)
816 init_completion(&online_compl);
818 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
819 lpfc_workq_post_event(phba, &status, &online_compl,
821 wait_for_completion(&online_compl);
822 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
823 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
824 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
825 if (phba->sli_rev == LPFC_SLI_REV4)
828 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
829 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
830 if (phba->sli_rev == LPFC_SLI_REV4)
833 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
844 * lpfc_get_hba_info - Return various bits of informaton about the adapter
845 * @phba: pointer to the adapter structure.
846 * @mxri: max xri count.
847 * @axri: available xri count.
848 * @mrpi: max rpi count.
849 * @arpi: available rpi count.
850 * @mvpi: max vpi count.
851 * @avpi: available vpi count.
854 * If an integer pointer for an count is not null then the value for the
862 lpfc_get_hba_info(struct lpfc_hba *phba,
863 uint32_t *mxri, uint32_t *axri,
864 uint32_t *mrpi, uint32_t *arpi,
865 uint32_t *mvpi, uint32_t *avpi)
867 struct lpfc_sli *psli = &phba->sli;
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 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
898 rc = MBX_NOT_FINISHED;
900 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
902 if (rc != MBX_SUCCESS) {
903 if (rc != MBX_TIMEOUT)
904 mempool_free(pmboxq, phba->mbox_mem_pool);
908 if (phba->sli_rev == LPFC_SLI_REV4) {
909 rd_config = &pmboxq->u.mqe.un.rd_config;
911 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
913 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
914 phba->sli4_hba.max_cfg_param.rpi_used;
916 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
918 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
919 phba->sli4_hba.max_cfg_param.xri_used;
921 /* Account for differences with SLI-3. Get vpi count from
922 * mailbox data and subtract one for max vpi value.
924 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
925 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
930 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
933 *mrpi = pmb->un.varRdConfig.max_rpi;
935 *arpi = pmb->un.varRdConfig.avail_rpi;
937 *mxri = pmb->un.varRdConfig.max_xri;
939 *axri = pmb->un.varRdConfig.avail_xri;
941 *mvpi = pmb->un.varRdConfig.max_vpi;
943 *avpi = pmb->un.varRdConfig.avail_vpi;
946 mempool_free(pmboxq, phba->mbox_mem_pool);
951 * lpfc_max_rpi_show - Return maximum rpi
952 * @dev: class device that is converted into a Scsi_host.
953 * @attr: device attribute, not used.
954 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
957 * Calls lpfc_get_hba_info() asking for just the mrpi count.
958 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
959 * to "Unknown" and the buffer length is returned, therefore the caller
960 * must check for "Unknown" in the buffer to detect a failure.
962 * Returns: size of formatted string.
965 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
968 struct Scsi_Host *shost = class_to_shost(dev);
969 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
970 struct lpfc_hba *phba = vport->phba;
973 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
974 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
975 return snprintf(buf, PAGE_SIZE, "Unknown\n");
979 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
980 * @dev: class device that is converted into a Scsi_host.
981 * @attr: device attribute, not used.
982 * @buf: containing the used rpi count in decimal or "Unknown".
985 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
986 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
987 * to "Unknown" and the buffer length is returned, therefore the caller
988 * must check for "Unknown" in the buffer to detect a failure.
990 * Returns: size of formatted string.
993 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
996 struct Scsi_Host *shost = class_to_shost(dev);
997 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
998 struct lpfc_hba *phba = vport->phba;
1001 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1002 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1003 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1007 * lpfc_max_xri_show - Return maximum xri
1008 * @dev: class device that is converted into a Scsi_host.
1009 * @attr: device attribute, not used.
1010 * @buf: on return contains the maximum xri count in decimal or "Unknown".
1013 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1014 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1015 * to "Unknown" and the buffer length is returned, therefore the caller
1016 * must check for "Unknown" in the buffer to detect a failure.
1018 * Returns: size of formatted string.
1021 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
1024 struct Scsi_Host *shost = class_to_shost(dev);
1025 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1026 struct lpfc_hba *phba = vport->phba;
1029 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1030 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1031 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1035 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1036 * @dev: class device that is converted into a Scsi_host.
1037 * @attr: device attribute, not used.
1038 * @buf: on return contains the used xri count in decimal or "Unknown".
1041 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
1042 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1043 * to "Unknown" and the buffer length is returned, therefore the caller
1044 * must check for "Unknown" in the buffer to detect a failure.
1046 * Returns: size of formatted string.
1049 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
1052 struct Scsi_Host *shost = class_to_shost(dev);
1053 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1054 struct lpfc_hba *phba = vport->phba;
1057 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
1058 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1059 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1063 * lpfc_max_vpi_show - Return maximum vpi
1064 * @dev: class device that is converted into a Scsi_host.
1065 * @attr: device attribute, not used.
1066 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
1069 * Calls lpfc_get_hba_info() asking for just the mvpi count.
1070 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1071 * to "Unknown" and the buffer length is returned, therefore the caller
1072 * must check for "Unknown" in the buffer to detect a failure.
1074 * Returns: size of formatted string.
1077 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
1080 struct Scsi_Host *shost = class_to_shost(dev);
1081 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1082 struct lpfc_hba *phba = vport->phba;
1085 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
1086 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1087 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1091 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1092 * @dev: class device that is converted into a Scsi_host.
1093 * @attr: device attribute, not used.
1094 * @buf: on return contains the used vpi count in decimal or "Unknown".
1097 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
1098 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1099 * to "Unknown" and the buffer length is returned, therefore the caller
1100 * must check for "Unknown" in the buffer to detect a failure.
1102 * Returns: size of formatted string.
1105 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
1108 struct Scsi_Host *shost = class_to_shost(dev);
1109 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1110 struct lpfc_hba *phba = vport->phba;
1113 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
1114 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1115 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1119 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1120 * @dev: class device that is converted into a Scsi_host.
1121 * @attr: device attribute, not used.
1122 * @buf: text that must be interpreted to determine if npiv is supported.
1125 * Buffer will contain text indicating npiv is not suppoerted on the port,
1126 * the port is an NPIV physical port, or it is an npiv virtual port with
1127 * the id of the vport.
1129 * Returns: size of formatted string.
1132 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
1135 struct Scsi_Host *shost = class_to_shost(dev);
1136 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1137 struct lpfc_hba *phba = vport->phba;
1139 if (!(phba->max_vpi))
1140 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
1141 if (vport->port_type == LPFC_PHYSICAL_PORT)
1142 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
1143 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
1147 * lpfc_poll_show - Return text about poll support for the adapter
1148 * @dev: class device that is converted into a Scsi_host.
1149 * @attr: device attribute, not used.
1150 * @buf: on return contains the cfg_poll in hex.
1153 * cfg_poll should be a lpfc_polling_flags type.
1155 * Returns: size of formatted string.
1158 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
1161 struct Scsi_Host *shost = class_to_shost(dev);
1162 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1163 struct lpfc_hba *phba = vport->phba;
1165 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
1169 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1170 * @dev: class device that is converted into a Scsi_host.
1171 * @attr: device attribute, not used.
1172 * @buf: one or more lpfc_polling_flags values.
1176 * buf contents converted to integer and checked for a valid value.
1179 * -EINVAL if the buffer connot be converted or is out of range
1180 * length of the buf on success
1183 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
1184 const char *buf, size_t count)
1186 struct Scsi_Host *shost = class_to_shost(dev);
1187 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1188 struct lpfc_hba *phba = vport->phba;
1193 if (!isdigit(buf[0]))
1196 if (sscanf(buf, "%i", &val) != 1)
1199 if ((val & 0x3) != val)
1202 if (phba->sli_rev == LPFC_SLI_REV4)
1205 spin_lock_irq(&phba->hbalock);
1207 old_val = phba->cfg_poll;
1209 if (val & ENABLE_FCP_RING_POLLING) {
1210 if ((val & DISABLE_FCP_RING_INT) &&
1211 !(old_val & DISABLE_FCP_RING_INT)) {
1212 creg_val = readl(phba->HCregaddr);
1213 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
1214 writel(creg_val, phba->HCregaddr);
1215 readl(phba->HCregaddr); /* flush */
1217 lpfc_poll_start_timer(phba);
1219 } else if (val != 0x0) {
1220 spin_unlock_irq(&phba->hbalock);
1224 if (!(val & DISABLE_FCP_RING_INT) &&
1225 (old_val & DISABLE_FCP_RING_INT))
1227 spin_unlock_irq(&phba->hbalock);
1228 del_timer(&phba->fcp_poll_timer);
1229 spin_lock_irq(&phba->hbalock);
1230 creg_val = readl(phba->HCregaddr);
1231 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1232 writel(creg_val, phba->HCregaddr);
1233 readl(phba->HCregaddr); /* flush */
1236 phba->cfg_poll = val;
1238 spin_unlock_irq(&phba->hbalock);
1244 * lpfc_param_show - Return a cfg attribute value in decimal
1247 * Macro that given an attr e.g. hba_queue_depth expands
1248 * into a function with the name lpfc_hba_queue_depth_show.
1250 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1251 * @dev: class device that is converted into a Scsi_host.
1252 * @attr: device attribute, not used.
1253 * @buf: on return contains the attribute value in decimal.
1255 * Returns: size of formatted string.
1257 #define lpfc_param_show(attr) \
1259 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1262 struct Scsi_Host *shost = class_to_shost(dev);\
1263 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1264 struct lpfc_hba *phba = vport->phba;\
1266 val = phba->cfg_##attr;\
1267 return snprintf(buf, PAGE_SIZE, "%d\n",\
1272 * lpfc_param_hex_show - Return a cfg attribute value in hex
1275 * Macro that given an attr e.g. hba_queue_depth expands
1276 * into a function with the name lpfc_hba_queue_depth_show
1278 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1279 * @dev: class device that is converted into a Scsi_host.
1280 * @attr: device attribute, not used.
1281 * @buf: on return contains the attribute value in hexadecimal.
1283 * Returns: size of formatted string.
1285 #define lpfc_param_hex_show(attr) \
1287 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1290 struct Scsi_Host *shost = class_to_shost(dev);\
1291 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1292 struct lpfc_hba *phba = vport->phba;\
1294 val = phba->cfg_##attr;\
1295 return snprintf(buf, PAGE_SIZE, "%#x\n",\
1300 * lpfc_param_init - Intializes a cfg attribute
1303 * Macro that given an attr e.g. hba_queue_depth expands
1304 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1305 * takes a default argument, a minimum and maximum argument.
1307 * lpfc_##attr##_init: Initializes an attribute.
1308 * @phba: pointer the the adapter structure.
1309 * @val: integer attribute value.
1311 * Validates the min and max values then sets the adapter config field
1312 * accordingly, or uses the default if out of range and prints an error message.
1316 * -EINVAL if default used
1318 #define lpfc_param_init(attr, default, minval, maxval) \
1320 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1322 if (val >= minval && val <= maxval) {\
1323 phba->cfg_##attr = val;\
1326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1327 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
1328 "allowed range is ["#minval", "#maxval"]\n", val); \
1329 phba->cfg_##attr = default;\
1334 * lpfc_param_set - Set a cfg attribute value
1337 * Macro that given an attr e.g. hba_queue_depth expands
1338 * into a function with the name lpfc_hba_queue_depth_set
1340 * lpfc_##attr##_set: Sets an attribute value.
1341 * @phba: pointer the the adapter structure.
1342 * @val: integer attribute value.
1345 * Validates the min and max values then sets the
1346 * adapter config field if in the valid range. prints error message
1347 * and does not set the parameter if invalid.
1351 * -EINVAL if val is invalid
1353 #define lpfc_param_set(attr, default, minval, maxval) \
1355 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1357 if (val >= minval && val <= maxval) {\
1358 phba->cfg_##attr = val;\
1361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1362 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
1363 "allowed range is ["#minval", "#maxval"]\n", val); \
1368 * lpfc_param_store - Set a vport attribute value
1371 * Macro that given an attr e.g. hba_queue_depth expands
1372 * into a function with the name lpfc_hba_queue_depth_store.
1374 * lpfc_##attr##_store: Set an sttribute value.
1375 * @dev: class device that is converted into a Scsi_host.
1376 * @attr: device attribute, not used.
1377 * @buf: contains the attribute value in ascii.
1381 * Convert the ascii text number to an integer, then
1382 * use the lpfc_##attr##_set function to set the value.
1385 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1386 * length of buffer upon success.
1388 #define lpfc_param_store(attr) \
1390 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1391 const char *buf, size_t count) \
1393 struct Scsi_Host *shost = class_to_shost(dev);\
1394 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1395 struct lpfc_hba *phba = vport->phba;\
1397 if (!isdigit(buf[0]))\
1399 if (sscanf(buf, "%i", &val) != 1)\
1401 if (lpfc_##attr##_set(phba, val) == 0) \
1402 return strlen(buf);\
1408 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1411 * Macro that given an attr e.g. hba_queue_depth expands
1412 * into a function with the name lpfc_hba_queue_depth_show
1414 * lpfc_##attr##_show: prints the attribute value in decimal.
1415 * @dev: class device that is converted into a Scsi_host.
1416 * @attr: device attribute, not used.
1417 * @buf: on return contains the attribute value in decimal.
1419 * Returns: length of formatted string.
1421 #define lpfc_vport_param_show(attr) \
1423 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1426 struct Scsi_Host *shost = class_to_shost(dev);\
1427 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1429 val = vport->cfg_##attr;\
1430 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
1434 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1437 * Macro that given an attr e.g.
1438 * hba_queue_depth expands into a function with the name
1439 * lpfc_hba_queue_depth_show
1441 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1442 * @dev: class device that is converted into a Scsi_host.
1443 * @attr: device attribute, not used.
1444 * @buf: on return contains the attribute value in hexadecimal.
1446 * Returns: length of formatted string.
1448 #define lpfc_vport_param_hex_show(attr) \
1450 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1453 struct Scsi_Host *shost = class_to_shost(dev);\
1454 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1456 val = vport->cfg_##attr;\
1457 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
1461 * lpfc_vport_param_init - Initialize a vport cfg attribute
1464 * Macro that given an attr e.g. hba_queue_depth expands
1465 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1466 * takes a default argument, a minimum and maximum argument.
1468 * lpfc_##attr##_init: validates the min and max values then sets the
1469 * adapter config field accordingly, or uses the default if out of range
1470 * and prints an error message.
1471 * @phba: pointer the the adapter structure.
1472 * @val: integer attribute value.
1476 * -EINVAL if default used
1478 #define lpfc_vport_param_init(attr, default, minval, maxval) \
1480 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1482 if (val >= minval && val <= maxval) {\
1483 vport->cfg_##attr = val;\
1486 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1487 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1488 "allowed range is ["#minval", "#maxval"]\n", val); \
1489 vport->cfg_##attr = default;\
1494 * lpfc_vport_param_set - Set a vport cfg attribute
1497 * Macro that given an attr e.g. hba_queue_depth expands
1498 * into a function with the name lpfc_hba_queue_depth_set
1500 * lpfc_##attr##_set: validates the min and max values then sets the
1501 * adapter config field if in the valid range. prints error message
1502 * and does not set the parameter if invalid.
1503 * @phba: pointer the the adapter structure.
1504 * @val: integer attribute value.
1508 * -EINVAL if val is invalid
1510 #define lpfc_vport_param_set(attr, default, minval, maxval) \
1512 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1514 if (val >= minval && val <= maxval) {\
1515 vport->cfg_##attr = val;\
1518 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1519 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1520 "allowed range is ["#minval", "#maxval"]\n", val); \
1525 * lpfc_vport_param_store - Set a vport attribute
1528 * Macro that given an attr e.g. hba_queue_depth
1529 * expands into a function with the name lpfc_hba_queue_depth_store
1531 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1532 * use the lpfc_##attr##_set function to set the value.
1533 * @cdev: class device that is converted into a Scsi_host.
1534 * @buf: contains the attribute value in decimal.
1538 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1539 * length of buffer upon success.
1541 #define lpfc_vport_param_store(attr) \
1543 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1544 const char *buf, size_t count) \
1546 struct Scsi_Host *shost = class_to_shost(dev);\
1547 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1549 if (!isdigit(buf[0]))\
1551 if (sscanf(buf, "%i", &val) != 1)\
1553 if (lpfc_##attr##_set(vport, val) == 0) \
1554 return strlen(buf);\
1560 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
1561 static uint lpfc_##name = defval;\
1562 module_param(lpfc_##name, uint, 0);\
1563 MODULE_PARM_DESC(lpfc_##name, desc);\
1564 lpfc_param_init(name, defval, minval, maxval)
1566 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
1567 static uint lpfc_##name = defval;\
1568 module_param(lpfc_##name, uint, 0);\
1569 MODULE_PARM_DESC(lpfc_##name, desc);\
1570 lpfc_param_show(name)\
1571 lpfc_param_init(name, defval, minval, maxval)\
1572 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1574 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
1575 static uint lpfc_##name = defval;\
1576 module_param(lpfc_##name, uint, 0);\
1577 MODULE_PARM_DESC(lpfc_##name, desc);\
1578 lpfc_param_show(name)\
1579 lpfc_param_init(name, defval, minval, maxval)\
1580 lpfc_param_set(name, defval, minval, maxval)\
1581 lpfc_param_store(name)\
1582 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1583 lpfc_##name##_show, lpfc_##name##_store)
1585 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1586 static uint lpfc_##name = defval;\
1587 module_param(lpfc_##name, uint, 0);\
1588 MODULE_PARM_DESC(lpfc_##name, desc);\
1589 lpfc_param_hex_show(name)\
1590 lpfc_param_init(name, defval, minval, maxval)\
1591 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1593 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1594 static uint lpfc_##name = defval;\
1595 module_param(lpfc_##name, uint, 0);\
1596 MODULE_PARM_DESC(lpfc_##name, desc);\
1597 lpfc_param_hex_show(name)\
1598 lpfc_param_init(name, defval, minval, maxval)\
1599 lpfc_param_set(name, defval, minval, maxval)\
1600 lpfc_param_store(name)\
1601 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1602 lpfc_##name##_show, lpfc_##name##_store)
1604 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
1605 static uint lpfc_##name = defval;\
1606 module_param(lpfc_##name, uint, 0);\
1607 MODULE_PARM_DESC(lpfc_##name, desc);\
1608 lpfc_vport_param_init(name, defval, minval, maxval)
1610 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
1611 static uint lpfc_##name = defval;\
1612 module_param(lpfc_##name, uint, 0);\
1613 MODULE_PARM_DESC(lpfc_##name, desc);\
1614 lpfc_vport_param_show(name)\
1615 lpfc_vport_param_init(name, defval, minval, maxval)\
1616 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1618 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
1619 static uint lpfc_##name = defval;\
1620 module_param(lpfc_##name, uint, 0);\
1621 MODULE_PARM_DESC(lpfc_##name, desc);\
1622 lpfc_vport_param_show(name)\
1623 lpfc_vport_param_init(name, defval, minval, maxval)\
1624 lpfc_vport_param_set(name, defval, minval, maxval)\
1625 lpfc_vport_param_store(name)\
1626 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1627 lpfc_##name##_show, lpfc_##name##_store)
1629 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1630 static uint lpfc_##name = defval;\
1631 module_param(lpfc_##name, uint, 0);\
1632 MODULE_PARM_DESC(lpfc_##name, desc);\
1633 lpfc_vport_param_hex_show(name)\
1634 lpfc_vport_param_init(name, defval, minval, maxval)\
1635 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1637 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1638 static uint lpfc_##name = defval;\
1639 module_param(lpfc_##name, uint, 0);\
1640 MODULE_PARM_DESC(lpfc_##name, desc);\
1641 lpfc_vport_param_hex_show(name)\
1642 lpfc_vport_param_init(name, defval, minval, maxval)\
1643 lpfc_vport_param_set(name, defval, minval, maxval)\
1644 lpfc_vport_param_store(name)\
1645 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1646 lpfc_##name##_show, lpfc_##name##_store)
1648 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
1649 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
1650 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
1651 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
1652 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
1653 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
1654 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
1655 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
1656 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
1657 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
1658 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
1659 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
1660 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
1661 lpfc_link_state_store);
1662 static DEVICE_ATTR(option_rom_version, S_IRUGO,
1663 lpfc_option_rom_version_show, NULL);
1664 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
1665 lpfc_num_discovered_ports_show, NULL);
1666 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
1667 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
1668 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
1669 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
1670 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
1671 lpfc_board_mode_show, lpfc_board_mode_store);
1672 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
1673 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
1674 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
1675 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
1676 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
1677 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
1678 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
1679 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
1680 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
1683 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
1686 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
1687 * @dev: class device that is converted into a Scsi_host.
1688 * @attr: device attribute, not used.
1689 * @buf: containing the string lpfc_soft_wwn_key.
1690 * @count: must be size of lpfc_soft_wwn_key.
1693 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
1694 * length of buf indicates success
1697 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
1698 const char *buf, size_t count)
1700 struct Scsi_Host *shost = class_to_shost(dev);
1701 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1702 struct lpfc_hba *phba = vport->phba;
1703 unsigned int cnt = count;
1706 * We're doing a simple sanity check for soft_wwpn setting.
1707 * We require that the user write a specific key to enable
1708 * the soft_wwpn attribute to be settable. Once the attribute
1709 * is written, the enable key resets. If further updates are
1710 * desired, the key must be written again to re-enable the
1713 * The "key" is not secret - it is a hardcoded string shown
1714 * here. The intent is to protect against the random user or
1715 * application that is just writing attributes.
1718 /* count may include a LF at end of string */
1719 if (buf[cnt-1] == '\n')
1722 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
1723 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
1726 phba->soft_wwn_enable = 1;
1729 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
1730 lpfc_soft_wwn_enable_store);
1733 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
1734 * @dev: class device that is converted into a Scsi_host.
1735 * @attr: device attribute, not used.
1736 * @buf: on return contains the wwpn in hexadecimal.
1738 * Returns: size of formatted string.
1741 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
1744 struct Scsi_Host *shost = class_to_shost(dev);
1745 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1746 struct lpfc_hba *phba = vport->phba;
1748 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1749 (unsigned long long)phba->cfg_soft_wwpn);
1753 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
1754 * @dev class device that is converted into a Scsi_host.
1755 * @attr: device attribute, not used.
1756 * @buf: contains the wwpn in hexadecimal.
1757 * @count: number of wwpn bytes in buf
1760 * -EACCES hba reset not enabled, adapter over temp
1761 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
1762 * -EIO error taking adapter offline or online
1763 * value of count on success
1766 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
1767 const char *buf, size_t count)
1769 struct Scsi_Host *shost = class_to_shost(dev);
1770 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1771 struct lpfc_hba *phba = vport->phba;
1772 struct completion online_compl;
1773 int stat1=0, stat2=0;
1774 unsigned int i, j, cnt=count;
1777 if (!phba->cfg_enable_hba_reset)
1779 spin_lock_irq(&phba->hbalock);
1780 if (phba->over_temp_state == HBA_OVER_TEMP) {
1781 spin_unlock_irq(&phba->hbalock);
1784 spin_unlock_irq(&phba->hbalock);
1785 /* count may include a LF at end of string */
1786 if (buf[cnt-1] == '\n')
1789 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1790 ((cnt == 17) && (*buf++ != 'x')) ||
1791 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1794 phba->soft_wwn_enable = 0;
1796 memset(wwpn, 0, sizeof(wwpn));
1798 /* Validate and store the new name */
1799 for (i=0, j=0; i < 16; i++) {
1800 if ((*buf >= 'a') && (*buf <= 'f'))
1801 j = ((j << 4) | ((*buf++ -'a') + 10));
1802 else if ((*buf >= 'A') && (*buf <= 'F'))
1803 j = ((j << 4) | ((*buf++ -'A') + 10));
1804 else if ((*buf >= '0') && (*buf <= '9'))
1805 j = ((j << 4) | (*buf++ -'0'));
1809 wwpn[i/2] = j & 0xff;
1813 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1814 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1815 if (phba->cfg_soft_wwnn)
1816 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1818 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1819 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1821 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1824 "0463 lpfc_soft_wwpn attribute set failed to "
1825 "reinit adapter - %d\n", stat1);
1826 init_completion(&online_compl);
1827 lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1828 wait_for_completion(&online_compl);
1830 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1831 "0464 lpfc_soft_wwpn attribute set failed to "
1832 "reinit adapter - %d\n", stat2);
1833 return (stat1 || stat2) ? -EIO : count;
1835 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1836 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1839 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
1840 * @dev: class device that is converted into a Scsi_host.
1841 * @attr: device attribute, not used.
1842 * @buf: on return contains the wwnn in hexadecimal.
1844 * Returns: size of formatted string.
1847 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
1850 struct Scsi_Host *shost = class_to_shost(dev);
1851 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1852 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1853 (unsigned long long)phba->cfg_soft_wwnn);
1857 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
1858 * @cdev: class device that is converted into a Scsi_host.
1859 * @buf: contains the ww node name in hexadecimal.
1860 * @count: number of wwnn bytes in buf.
1863 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
1864 * value of count on success
1867 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
1868 const char *buf, size_t count)
1870 struct Scsi_Host *shost = class_to_shost(dev);
1871 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1872 unsigned int i, j, cnt=count;
1875 /* count may include a LF at end of string */
1876 if (buf[cnt-1] == '\n')
1879 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1880 ((cnt == 17) && (*buf++ != 'x')) ||
1881 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1885 * Allow wwnn to be set many times, as long as the enable is set.
1886 * However, once the wwpn is set, everything locks.
1889 memset(wwnn, 0, sizeof(wwnn));
1891 /* Validate and store the new name */
1892 for (i=0, j=0; i < 16; i++) {
1893 if ((*buf >= 'a') && (*buf <= 'f'))
1894 j = ((j << 4) | ((*buf++ -'a') + 10));
1895 else if ((*buf >= 'A') && (*buf <= 'F'))
1896 j = ((j << 4) | ((*buf++ -'A') + 10));
1897 else if ((*buf >= '0') && (*buf <= '9'))
1898 j = ((j << 4) | (*buf++ -'0'));
1902 wwnn[i/2] = j & 0xff;
1906 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1908 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1909 "lpfc%d: soft_wwnn set. Value will take effect upon "
1910 "setting of the soft_wwpn\n", phba->brd_no);
1914 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1915 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1918 static int lpfc_poll = 0;
1919 module_param(lpfc_poll, int, 0);
1920 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1922 " 1 - poll with interrupts enabled"
1923 " 3 - poll and disable FCP ring interrupts");
1925 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1926 lpfc_poll_show, lpfc_poll_store);
1928 int lpfc_sli_mode = 0;
1929 module_param(lpfc_sli_mode, int, 0);
1930 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1931 " 0 - auto (SLI-3 if supported),"
1932 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1933 " 3 - select SLI-3");
1935 int lpfc_enable_npiv = 1;
1936 module_param(lpfc_enable_npiv, int, 0);
1937 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
1938 lpfc_param_show(enable_npiv);
1939 lpfc_param_init(enable_npiv, 1, 0, 1);
1940 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
1943 # lpfc_suppress_link_up: Bring link up at initialization
1944 # 0x0 = bring link up (issue MBX_INIT_LINK)
1945 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
1946 # 0x2 = never bring up link
1947 # Default value is 0.
1949 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
1950 LPFC_DELAY_INIT_LINK_INDEFINITELY,
1951 "Suppress Link Up at initialization");
1954 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
1955 # until the timer expires. Value range is [0,255]. Default value is 30.
1957 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1958 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
1959 module_param(lpfc_nodev_tmo, int, 0);
1960 MODULE_PARM_DESC(lpfc_nodev_tmo,
1961 "Seconds driver will hold I/O waiting "
1962 "for a device to come back");
1965 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
1966 * @dev: class converted to a Scsi_host structure.
1967 * @attr: device attribute, not used.
1968 * @buf: on return contains the dev loss timeout in decimal.
1970 * Returns: size of formatted string.
1973 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
1976 struct Scsi_Host *shost = class_to_shost(dev);
1977 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1979 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
1983 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
1984 * @vport: lpfc vport structure pointer.
1985 * @val: contains the nodev timeout value.
1988 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
1989 * a kernel error message is printed and zero is returned.
1990 * Else if val is in range then nodev tmo and devloss tmo are set to val.
1991 * Otherwise nodev tmo is set to the default value.
1994 * zero if already set or if val is in range
1995 * -EINVAL val out of range
1998 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
2000 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
2001 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
2002 if (val != LPFC_DEF_DEVLOSS_TMO)
2003 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2004 "0407 Ignoring nodev_tmo module "
2005 "parameter because devloss_tmo is "
2010 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2011 vport->cfg_nodev_tmo = val;
2012 vport->cfg_devloss_tmo = val;
2015 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2016 "0400 lpfc_nodev_tmo attribute cannot be set to"
2017 " %d, allowed range is [%d, %d]\n",
2018 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2019 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2024 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2025 * @vport: lpfc vport structure pointer.
2028 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
2031 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2033 struct Scsi_Host *shost;
2034 struct lpfc_nodelist *ndlp;
2036 shost = lpfc_shost_from_vport(vport);
2037 spin_lock_irq(shost->host_lock);
2038 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2039 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2040 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
2041 spin_unlock_irq(shost->host_lock);
2045 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2046 * @vport: lpfc vport structure pointer.
2047 * @val: contains the tmo value.
2050 * If the devloss tmo is already set or the vport dev loss tmo has changed
2051 * then a kernel error message is printed and zero is returned.
2052 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2053 * Otherwise nodev tmo is set to the default value.
2056 * zero if already set or if val is in range
2057 * -EINVAL val out of range
2060 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2062 if (vport->dev_loss_tmo_changed ||
2063 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2064 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2065 "0401 Ignoring change to nodev_tmo "
2066 "because devloss_tmo is set.\n");
2069 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2070 vport->cfg_nodev_tmo = val;
2071 vport->cfg_devloss_tmo = val;
2072 lpfc_update_rport_devloss_tmo(vport);
2075 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2076 "0403 lpfc_nodev_tmo attribute cannot be set to"
2077 "%d, allowed range is [%d, %d]\n",
2078 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2082 lpfc_vport_param_store(nodev_tmo)
2084 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
2085 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
2088 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
2089 # disappear until the timer expires. Value range is [0,255]. Default
2092 module_param(lpfc_devloss_tmo, int, 0);
2093 MODULE_PARM_DESC(lpfc_devloss_tmo,
2094 "Seconds driver will hold I/O waiting "
2095 "for a device to come back");
2096 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
2097 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
2098 lpfc_vport_param_show(devloss_tmo)
2101 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
2102 * @vport: lpfc vport structure pointer.
2103 * @val: contains the tmo value.
2106 * If val is in a valid range then set the vport nodev tmo,
2107 * devloss tmo, also set the vport dev loss tmo changed flag.
2108 * Else a kernel error message is printed.
2111 * zero if val is in range
2112 * -EINVAL val out of range
2115 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
2117 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2118 vport->cfg_nodev_tmo = val;
2119 vport->cfg_devloss_tmo = val;
2120 vport->dev_loss_tmo_changed = 1;
2121 lpfc_update_rport_devloss_tmo(vport);
2125 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2126 "0404 lpfc_devloss_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(devloss_tmo)
2133 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
2134 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
2137 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
2138 # deluged with LOTS of information.
2139 # You can set a bit mask to record specific types of verbose messages:
2140 # See lpfc_logmsh.h for definitions.
2142 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
2143 "Verbose logging bit-mask");
2146 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
2147 # objects that have been registered with the nameserver after login.
2149 LPFC_VPORT_ATTR_R(enable_da_id, 0, 0, 1,
2150 "Deregister nameserver objects before LOGO");
2153 # lun_queue_depth: This parameter is used to limit the number of outstanding
2154 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
2156 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
2157 "Max number of FCP commands we can queue to a specific LUN");
2160 # hba_queue_depth: This parameter is used to limit the number of outstanding
2161 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
2162 # value is greater than the maximum number of exchanges supported by the HBA,
2163 # then maximum number of exchanges supported by the HBA is used to determine
2164 # the hba_queue_depth.
2166 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
2167 "Max number of FCP commands we can queue to a lpfc HBA");
2170 # peer_port_login: This parameter allows/prevents logins
2171 # between peer ports hosted on the same physical port.
2172 # When this parameter is set 0 peer ports of same physical port
2173 # are not allowed to login to each other.
2174 # When this parameter is set 1 peer ports of same physical port
2175 # are allowed to login to each other.
2176 # Default value of this parameter is 0.
2178 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
2179 "Allow peer ports on the same physical port to login to each "
2183 # restrict_login: This parameter allows/prevents logins
2184 # between Virtual Ports and remote initiators.
2185 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
2186 # other initiators and will attempt to PLOGI all remote ports.
2187 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
2188 # remote ports and will not attempt to PLOGI to other initiators.
2189 # This parameter does not restrict to the physical port.
2190 # This parameter does not restrict logins to Fabric resident remote ports.
2191 # Default value of this parameter is 1.
2193 static int lpfc_restrict_login = 1;
2194 module_param(lpfc_restrict_login, int, 0);
2195 MODULE_PARM_DESC(lpfc_restrict_login,
2196 "Restrict virtual ports login to remote initiators.");
2197 lpfc_vport_param_show(restrict_login);
2200 * lpfc_restrict_login_init - Set the vport restrict login flag
2201 * @vport: lpfc vport structure pointer.
2202 * @val: contains the restrict login value.
2205 * If val is not in a valid range then log a kernel error message and set
2206 * the vport restrict login to one.
2207 * If the port type is physical clear the restrict login flag and return.
2208 * Else set the restrict login flag to val.
2211 * zero if val is in range
2212 * -EINVAL val out of range
2215 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
2217 if (val < 0 || val > 1) {
2218 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2219 "0422 lpfc_restrict_login attribute cannot "
2220 "be set to %d, allowed range is [0, 1]\n",
2222 vport->cfg_restrict_login = 1;
2225 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2226 vport->cfg_restrict_login = 0;
2229 vport->cfg_restrict_login = val;
2234 * lpfc_restrict_login_set - Set the vport restrict login flag
2235 * @vport: lpfc vport structure pointer.
2236 * @val: contains the restrict login value.
2239 * If val is not in a valid range then log a kernel error message and set
2240 * the vport restrict login to one.
2241 * If the port type is physical and the val is not zero log a kernel
2242 * error message, clear the restrict login flag and return zero.
2243 * Else set the restrict login flag to val.
2246 * zero if val is in range
2247 * -EINVAL val out of range
2250 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
2252 if (val < 0 || val > 1) {
2253 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2254 "0425 lpfc_restrict_login attribute cannot "
2255 "be set to %d, allowed range is [0, 1]\n",
2257 vport->cfg_restrict_login = 1;
2260 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
2261 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2262 "0468 lpfc_restrict_login must be 0 for "
2263 "Physical ports.\n");
2264 vport->cfg_restrict_login = 0;
2267 vport->cfg_restrict_login = val;
2270 lpfc_vport_param_store(restrict_login);
2271 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
2272 lpfc_restrict_login_show, lpfc_restrict_login_store);
2275 # Some disk devices have a "select ID" or "select Target" capability.
2276 # From a protocol standpoint "select ID" usually means select the
2277 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
2278 # annex" which contains a table that maps a "select ID" (a number
2279 # between 0 and 7F) to an ALPA. By default, for compatibility with
2280 # older drivers, the lpfc driver scans this table from low ALPA to high
2283 # Turning on the scan-down variable (on = 1, off = 0) will
2284 # cause the lpfc driver to use an inverted table, effectively
2285 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
2287 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
2288 # and will not work across a fabric. Also this parameter will take
2289 # effect only in the case when ALPA map is not available.)
2291 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
2292 "Start scanning for devices from highest ALPA to lowest");
2295 # lpfc_topology: link topology for init link
2296 # 0x0 = attempt loop mode then point-to-point
2297 # 0x01 = internal loopback mode
2298 # 0x02 = attempt point-to-point mode only
2299 # 0x04 = attempt loop mode only
2300 # 0x06 = attempt point-to-point mode then loop
2301 # Set point-to-point mode if you want to run as an N_Port.
2302 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
2303 # Default value is 0.
2307 * lpfc_topology_set - Set the adapters topology field
2308 * @phba: lpfc_hba pointer.
2309 * @val: topology value.
2312 * If val is in a valid range then set the adapter's topology field and
2313 * issue a lip; if the lip fails reset the topology to the old value.
2315 * If the value is not in range log a kernel error message and return an error.
2318 * zero if val is in range and lip okay
2319 * non-zero return value from lpfc_issue_lip()
2320 * -EINVAL val out of range
2323 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
2324 const char *buf, size_t count)
2326 struct Scsi_Host *shost = class_to_shost(dev);
2327 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2328 struct lpfc_hba *phba = vport->phba;
2331 const char *val_buf = buf;
2335 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
2337 val_buf = &buf[strlen("nolip ")];
2340 if (!isdigit(val_buf[0]))
2342 if (sscanf(val_buf, "%i", &val) != 1)
2345 if (val >= 0 && val <= 6) {
2346 prev_val = phba->cfg_topology;
2347 phba->cfg_topology = val;
2351 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2353 phba->cfg_topology = prev_val;
2358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2359 "%d:0467 lpfc_topology attribute cannot be set to %d, "
2360 "allowed range is [0, 6]\n",
2364 static int lpfc_topology = 0;
2365 module_param(lpfc_topology, int, 0);
2366 MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
2367 lpfc_param_show(topology)
2368 lpfc_param_init(topology, 0, 0, 6)
2369 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
2370 lpfc_topology_show, lpfc_topology_store);
2373 * lpfc_static_vport_show: Read callback function for
2374 * lpfc_static_vport sysfs file.
2375 * @dev: Pointer to class device object.
2376 * @attr: device attribute structure.
2377 * @buf: Data buffer.
2379 * This function is the read call back function for
2380 * lpfc_static_vport sysfs file. The lpfc_static_vport
2381 * sysfs file report the mageability of the vport.
2384 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
2387 struct Scsi_Host *shost = class_to_shost(dev);
2388 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2389 if (vport->vport_flag & STATIC_VPORT)
2390 sprintf(buf, "1\n");
2392 sprintf(buf, "0\n");
2398 * Sysfs attribute to control the statistical data collection.
2400 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
2401 lpfc_static_vport_show, NULL);
2404 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
2405 * @dev: Pointer to class device.
2406 * @buf: Data buffer.
2407 * @count: Size of the data buffer.
2409 * This function get called when an user write to the lpfc_stat_data_ctrl
2410 * sysfs file. This function parse the command written to the sysfs file
2411 * and take appropriate action. These commands are used for controlling
2412 * driver statistical data collection.
2413 * Following are the command this function handles.
2415 * setbucket <bucket_type> <base> <step>
2416 * = Set the latency buckets.
2417 * destroybucket = destroy all the buckets.
2418 * start = start data collection
2419 * stop = stop data collection
2420 * reset = reset the collected data
2423 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
2424 const char *buf, size_t count)
2426 struct Scsi_Host *shost = class_to_shost(dev);
2427 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2428 struct lpfc_hba *phba = vport->phba;
2429 #define LPFC_MAX_DATA_CTRL_LEN 1024
2430 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
2432 char *str_ptr, *token;
2433 struct lpfc_vport **vports;
2434 struct Scsi_Host *v_shost;
2435 char *bucket_type_str, *base_str, *step_str;
2436 unsigned long base, step, bucket_type;
2438 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
2439 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
2442 strcpy(bucket_data, buf);
2443 str_ptr = &bucket_data[0];
2444 /* Ignore this token - this is command token */
2445 token = strsep(&str_ptr, "\t ");
2449 bucket_type_str = strsep(&str_ptr, "\t ");
2450 if (!bucket_type_str)
2453 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
2454 bucket_type = LPFC_LINEAR_BUCKET;
2455 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
2456 bucket_type = LPFC_POWER2_BUCKET;
2460 base_str = strsep(&str_ptr, "\t ");
2463 base = simple_strtoul(base_str, NULL, 0);
2465 step_str = strsep(&str_ptr, "\t ");
2468 step = simple_strtoul(step_str, NULL, 0);
2472 /* Block the data collection for every vport */
2473 vports = lpfc_create_vport_work_array(phba);
2477 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2478 v_shost = lpfc_shost_from_vport(vports[i]);
2479 spin_lock_irq(v_shost->host_lock);
2480 /* Block and reset data collection */
2481 vports[i]->stat_data_blocked = 1;
2482 if (vports[i]->stat_data_enabled)
2483 lpfc_vport_reset_stat_data(vports[i]);
2484 spin_unlock_irq(v_shost->host_lock);
2487 /* Set the bucket attributes */
2488 phba->bucket_type = bucket_type;
2489 phba->bucket_base = base;
2490 phba->bucket_step = step;
2492 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2493 v_shost = lpfc_shost_from_vport(vports[i]);
2495 /* Unblock data collection */
2496 spin_lock_irq(v_shost->host_lock);
2497 vports[i]->stat_data_blocked = 0;
2498 spin_unlock_irq(v_shost->host_lock);
2500 lpfc_destroy_vport_work_array(phba, vports);
2504 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
2505 vports = lpfc_create_vport_work_array(phba);
2509 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2510 v_shost = lpfc_shost_from_vport(vports[i]);
2511 spin_lock_irq(shost->host_lock);
2512 vports[i]->stat_data_blocked = 1;
2513 lpfc_free_bucket(vport);
2514 vport->stat_data_enabled = 0;
2515 vports[i]->stat_data_blocked = 0;
2516 spin_unlock_irq(shost->host_lock);
2518 lpfc_destroy_vport_work_array(phba, vports);
2519 phba->bucket_type = LPFC_NO_BUCKET;
2520 phba->bucket_base = 0;
2521 phba->bucket_step = 0;
2525 if (!strncmp(buf, "start", strlen("start"))) {
2526 /* If no buckets configured return error */
2527 if (phba->bucket_type == LPFC_NO_BUCKET)
2529 spin_lock_irq(shost->host_lock);
2530 if (vport->stat_data_enabled) {
2531 spin_unlock_irq(shost->host_lock);
2534 lpfc_alloc_bucket(vport);
2535 vport->stat_data_enabled = 1;
2536 spin_unlock_irq(shost->host_lock);
2540 if (!strncmp(buf, "stop", strlen("stop"))) {
2541 spin_lock_irq(shost->host_lock);
2542 if (vport->stat_data_enabled == 0) {
2543 spin_unlock_irq(shost->host_lock);
2546 lpfc_free_bucket(vport);
2547 vport->stat_data_enabled = 0;
2548 spin_unlock_irq(shost->host_lock);
2552 if (!strncmp(buf, "reset", strlen("reset"))) {
2553 if ((phba->bucket_type == LPFC_NO_BUCKET)
2554 || !vport->stat_data_enabled)
2556 spin_lock_irq(shost->host_lock);
2557 vport->stat_data_blocked = 1;
2558 lpfc_vport_reset_stat_data(vport);
2559 vport->stat_data_blocked = 0;
2560 spin_unlock_irq(shost->host_lock);
2568 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
2569 * @dev: Pointer to class device object.
2570 * @buf: Data buffer.
2572 * This function is the read call back function for
2573 * lpfc_stat_data_ctrl sysfs file. This function report the
2574 * current statistical data collection state.
2577 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
2580 struct Scsi_Host *shost = class_to_shost(dev);
2581 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2582 struct lpfc_hba *phba = vport->phba;
2586 unsigned long bucket_value;
2588 switch (phba->bucket_type) {
2589 case LPFC_LINEAR_BUCKET:
2590 bucket_type = "linear";
2592 case LPFC_POWER2_BUCKET:
2593 bucket_type = "power2";
2596 bucket_type = "No Bucket";
2600 sprintf(&buf[index], "Statistical Data enabled :%d, "
2601 "blocked :%d, Bucket type :%s, Bucket base :%d,"
2602 " Bucket step :%d\nLatency Ranges :",
2603 vport->stat_data_enabled, vport->stat_data_blocked,
2604 bucket_type, phba->bucket_base, phba->bucket_step);
2605 index = strlen(buf);
2606 if (phba->bucket_type != LPFC_NO_BUCKET) {
2607 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2608 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
2609 bucket_value = phba->bucket_base +
2610 phba->bucket_step * i;
2612 bucket_value = phba->bucket_base +
2613 (1 << i) * phba->bucket_step;
2615 if (index + 10 > PAGE_SIZE)
2617 sprintf(&buf[index], "%08ld ", bucket_value);
2618 index = strlen(buf);
2621 sprintf(&buf[index], "\n");
2626 * Sysfs attribute to control the statistical data collection.
2628 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
2629 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
2632 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
2636 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
2639 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
2640 #define MAX_STAT_DATA_SIZE_PER_TARGET \
2641 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
2645 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
2647 * @kobj: Pointer to the kernel object
2648 * @bin_attr: Attribute object
2649 * @buff: Buffer pointer
2651 * @count: Buffer size
2653 * This function is the read call back function for lpfc_drvr_stat_data
2654 * sysfs file. This function export the statistical data to user
2658 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
2659 struct bin_attribute *bin_attr,
2660 char *buf, loff_t off, size_t count)
2662 struct device *dev = container_of(kobj, struct device,
2664 struct Scsi_Host *shost = class_to_shost(dev);
2665 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2666 struct lpfc_hba *phba = vport->phba;
2667 int i = 0, index = 0;
2668 unsigned long nport_index;
2669 struct lpfc_nodelist *ndlp = NULL;
2670 nport_index = (unsigned long)off /
2671 MAX_STAT_DATA_SIZE_PER_TARGET;
2673 if (!vport->stat_data_enabled || vport->stat_data_blocked
2674 || (phba->bucket_type == LPFC_NO_BUCKET))
2677 spin_lock_irq(shost->host_lock);
2678 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2679 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
2682 if (nport_index > 0) {
2687 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
2691 if (!ndlp->lat_data)
2695 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
2696 ndlp->nlp_portname.u.wwn[0],
2697 ndlp->nlp_portname.u.wwn[1],
2698 ndlp->nlp_portname.u.wwn[2],
2699 ndlp->nlp_portname.u.wwn[3],
2700 ndlp->nlp_portname.u.wwn[4],
2701 ndlp->nlp_portname.u.wwn[5],
2702 ndlp->nlp_portname.u.wwn[6],
2703 ndlp->nlp_portname.u.wwn[7]);
2705 index = strlen(buf);
2707 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2708 sprintf(&buf[index], "%010u,",
2709 ndlp->lat_data[i].cmd_count);
2710 index = strlen(buf);
2712 sprintf(&buf[index], "\n");
2713 index = strlen(buf);
2715 spin_unlock_irq(shost->host_lock);
2719 static struct bin_attribute sysfs_drvr_stat_data_attr = {
2721 .name = "lpfc_drvr_stat_data",
2723 .owner = THIS_MODULE,
2725 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
2726 .read = sysfs_drvr_stat_data_read,
2731 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
2733 # 0 = auto select (default)
2738 # Value range is [0,8]. Default value is 0.
2742 * lpfc_link_speed_set - Set the adapters link speed
2743 * @phba: lpfc_hba pointer.
2744 * @val: link speed value.
2747 * If val is in a valid range then set the adapter's link speed field and
2748 * issue a lip; if the lip fails reset the link speed to the old value.
2751 * If the value is not in range log a kernel error message and return an error.
2754 * zero if val is in range and lip okay.
2755 * non-zero return value from lpfc_issue_lip()
2756 * -EINVAL val out of range
2759 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
2760 const char *buf, size_t count)
2762 struct Scsi_Host *shost = class_to_shost(dev);
2763 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2764 struct lpfc_hba *phba = vport->phba;
2767 const char *val_buf = buf;
2771 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
2773 val_buf = &buf[strlen("nolip ")];
2776 if (!isdigit(val_buf[0]))
2778 if (sscanf(val_buf, "%i", &val) != 1)
2781 if (((val == LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
2782 ((val == LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
2783 ((val == LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
2784 ((val == LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
2785 ((val == LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)))
2788 if ((val >= 0 && val <= 8)
2789 && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
2790 prev_val = phba->cfg_link_speed;
2791 phba->cfg_link_speed = val;
2795 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2797 phba->cfg_link_speed = prev_val;
2803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2804 "%d:0469 lpfc_link_speed attribute cannot be set to %d, "
2805 "allowed range is [0, 8]\n",
2810 static int lpfc_link_speed = 0;
2811 module_param(lpfc_link_speed, int, 0);
2812 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
2813 lpfc_param_show(link_speed)
2816 * lpfc_link_speed_init - Set the adapters link speed
2817 * @phba: lpfc_hba pointer.
2818 * @val: link speed value.
2821 * If val is in a valid range then set the adapter's link speed field.
2824 * If the value is not in range log a kernel error message, clear the link
2825 * speed and return an error.
2828 * zero if val saved.
2829 * -EINVAL val out of range
2832 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
2834 if ((val >= 0 && val <= LPFC_MAX_LINK_SPEED)
2835 && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
2836 phba->cfg_link_speed = val;
2839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2840 "0405 lpfc_link_speed attribute cannot "
2841 "be set to %d, allowed values are "
2842 "["LPFC_LINK_SPEED_STRING"]\n", val);
2843 phba->cfg_link_speed = 0;
2847 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
2848 lpfc_link_speed_show, lpfc_link_speed_store);
2851 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
2852 # 0 = aer disabled or not supported
2853 # 1 = aer supported and enabled (default)
2854 # Value range is [0,1]. Default value is 1.
2858 * lpfc_aer_support_store - Set the adapter for aer support
2860 * @dev: class device that is converted into a Scsi_host.
2861 * @attr: device attribute, not used.
2862 * @buf: containing the string "selective".
2863 * @count: unused variable.
2866 * If the val is 1 and currently the device's AER capability was not
2867 * enabled, invoke the kernel's enable AER helper routine, trying to
2868 * enable the device's AER capability. If the helper routine enabling
2869 * AER returns success, update the device's cfg_aer_support flag to
2870 * indicate AER is supported by the device; otherwise, if the device
2871 * AER capability is already enabled to support AER, then do nothing.
2873 * If the val is 0 and currently the device's AER support was enabled,
2874 * invoke the kernel's disable AER helper routine. After that, update
2875 * the device's cfg_aer_support flag to indicate AER is not supported
2876 * by the device; otherwise, if the device AER capability is already
2877 * disabled from supporting AER, then do nothing.
2880 * length of the buf on success if val is in range the intended mode
2882 * -EINVAL if val out of range or intended mode is not supported.
2885 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
2886 const char *buf, size_t count)
2888 struct Scsi_Host *shost = class_to_shost(dev);
2889 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
2890 struct lpfc_hba *phba = vport->phba;
2891 int val = 0, rc = -EINVAL;
2893 /* AER not supported on OC devices yet */
2894 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
2896 if (!isdigit(buf[0]))
2898 if (sscanf(buf, "%i", &val) != 1)
2903 if (phba->hba_flag & HBA_AER_ENABLED) {
2904 rc = pci_disable_pcie_error_reporting(phba->pcidev);
2906 spin_lock_irq(&phba->hbalock);
2907 phba->hba_flag &= ~HBA_AER_ENABLED;
2908 spin_unlock_irq(&phba->hbalock);
2909 phba->cfg_aer_support = 0;
2914 phba->cfg_aer_support = 0;
2919 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
2920 rc = pci_enable_pcie_error_reporting(phba->pcidev);
2922 spin_lock_irq(&phba->hbalock);
2923 phba->hba_flag |= HBA_AER_ENABLED;
2924 spin_unlock_irq(&phba->hbalock);
2925 phba->cfg_aer_support = 1;
2930 phba->cfg_aer_support = 1;
2941 static int lpfc_aer_support = 1;
2942 module_param(lpfc_aer_support, int, 1);
2943 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
2944 lpfc_param_show(aer_support)
2947 * lpfc_aer_support_init - Set the initial adapters aer support flag
2948 * @phba: lpfc_hba pointer.
2949 * @val: link speed value.
2952 * If val is in a valid range [0,1], then set the adapter's initial
2953 * cfg_aer_support field. It will be up to the driver's probe_one
2954 * routine to determine whether the device's AER support can be set
2958 * If the value is not in range log a kernel error message, and
2959 * choose the default value of setting AER support and return.
2962 * zero if val saved.
2963 * -EINVAL val out of range
2966 lpfc_aer_support_init(struct lpfc_hba *phba, int val)
2968 /* AER not supported on OC devices yet */
2969 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
2970 phba->cfg_aer_support = 0;
2974 if (val == 0 || val == 1) {
2975 phba->cfg_aer_support = val;
2978 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2979 "2712 lpfc_aer_support attribute value %d out "
2980 "of range, allowed values are 0|1, setting it "
2981 "to default value of 1\n", val);
2982 /* By default, try to enable AER on a device */
2983 phba->cfg_aer_support = 1;
2987 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
2988 lpfc_aer_support_show, lpfc_aer_support_store);
2991 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
2992 * @dev: class device that is converted into a Scsi_host.
2993 * @attr: device attribute, not used.
2994 * @buf: containing the string "selective".
2995 * @count: unused variable.
2998 * If the @buf contains 1 and the device currently has the AER support
2999 * enabled, then invokes the kernel AER helper routine
3000 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
3001 * error status register.
3006 * -EINVAL if the buf does not contain the 1 or the device is not currently
3007 * enabled with the AER support.
3010 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
3011 const char *buf, size_t count)
3013 struct Scsi_Host *shost = class_to_shost(dev);
3014 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3015 struct lpfc_hba *phba = vport->phba;
3018 /* AER not supported on OC devices yet */
3019 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
3021 if (!isdigit(buf[0]))
3023 if (sscanf(buf, "%i", &val) != 1)
3028 if (phba->hba_flag & HBA_AER_ENABLED)
3029 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
3037 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
3038 lpfc_aer_cleanup_state);
3041 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
3042 # Value range is [2,3]. Default value is 3.
3044 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
3045 "Select Fibre Channel class of service for FCP sequences");
3048 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
3049 # is [0,1]. Default value is 0.
3051 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
3052 "Use ADISC on rediscovery to authenticate FCP devices");
3055 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
3056 # depth. Default value is 0. When the value of this parameter is zero the
3057 # SCSI command completion time is not used for controlling I/O queue depth. When
3058 # the parameter is set to a non-zero value, the I/O queue depth is controlled
3059 # to limit the I/O completion time to the parameter value.
3060 # The value is set in milliseconds.
3062 static int lpfc_max_scsicmpl_time;
3063 module_param(lpfc_max_scsicmpl_time, int, 0);
3064 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
3065 "Use command completion time to control queue depth");
3066 lpfc_vport_param_show(max_scsicmpl_time);
3067 lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
3069 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
3071 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3072 struct lpfc_nodelist *ndlp, *next_ndlp;
3074 if (val == vport->cfg_max_scsicmpl_time)
3076 if ((val < 0) || (val > 60000))
3078 vport->cfg_max_scsicmpl_time = val;
3080 spin_lock_irq(shost->host_lock);
3081 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
3082 if (!NLP_CHK_NODE_ACT(ndlp))
3084 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3086 ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH;
3088 spin_unlock_irq(shost->host_lock);
3091 lpfc_vport_param_store(max_scsicmpl_time);
3092 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
3093 lpfc_max_scsicmpl_time_show,
3094 lpfc_max_scsicmpl_time_store);
3097 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
3098 # range is [0,1]. Default value is 0.
3100 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
3103 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
3104 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
3105 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
3106 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
3107 # cr_delay is set to 0.
3109 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
3110 "interrupt response is generated");
3112 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
3113 "interrupt response is generated");
3116 # lpfc_multi_ring_support: Determines how many rings to spread available
3117 # cmd/rsp IOCB entries across.
3118 # Value range is [1,2]. Default value is 1.
3120 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
3121 "SLI rings to spread IOCB entries across");
3124 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
3125 # identifies what rctl value to configure the additional ring for.
3126 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
3128 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
3129 255, "Identifies RCTL for additional ring configuration");
3132 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
3133 # identifies what type value to configure the additional ring for.
3134 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
3136 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
3137 255, "Identifies TYPE for additional ring configuration");
3140 # lpfc_fdmi_on: controls FDMI support.
3141 # 0 = no FDMI support
3142 # 1 = support FDMI without attribute of hostname
3143 # 2 = support FDMI with attribute of hostname
3144 # Value range [0,2]. Default value is 0.
3146 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
3149 # Specifies the maximum number of ELS cmds we can have outstanding (for
3150 # discovery). Value range is [1,64]. Default value = 32.
3152 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
3153 "during discovery");
3156 # lpfc_max_luns: maximum allowed LUN.
3157 # Value range is [0,65535]. Default value is 255.
3158 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
3160 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
3163 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
3164 # Value range is [1,255], default value is 10.
3166 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
3167 "Milliseconds driver will wait between polling FCP ring");
3170 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
3171 # support this feature
3174 # 2 = MSI-X enabled (default)
3175 # Value range is [0,2]. Default value is 2.
3177 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
3178 "MSI-X (2), if possible");
3181 # lpfc_fcp_imax: Set the maximum number of fast-path FCP interrupts per second
3183 # Value range is [636,651042]. Default value is 10000.
3185 LPFC_ATTR_R(fcp_imax, LPFC_FP_DEF_IMAX, LPFC_MIM_IMAX, LPFC_DMULT_CONST,
3186 "Set the maximum number of fast-path FCP interrupts per second");
3189 # lpfc_fcp_wq_count: Set the number of fast-path FCP work queues
3191 # Value range is [1,31]. Default value is 4.
3193 LPFC_ATTR_R(fcp_wq_count, LPFC_FP_WQN_DEF, LPFC_FP_WQN_MIN, LPFC_FP_WQN_MAX,
3194 "Set the number of fast-path FCP work queues, if possible");
3197 # lpfc_fcp_eq_count: Set the number of fast-path FCP event queues
3199 # Value range is [1,7]. Default value is 1.
3201 LPFC_ATTR_R(fcp_eq_count, LPFC_FP_EQN_DEF, LPFC_FP_EQN_MIN, LPFC_FP_EQN_MAX,
3202 "Set the number of fast-path FCP event queues, if possible");
3205 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
3206 # 0 = HBA resets disabled
3207 # 1 = HBA resets enabled (default)
3208 # Value range is [0,1]. Default value is 1.
3210 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
3213 # lpfc_enable_hba_heartbeat: Enable HBA heartbeat timer..
3214 # 0 = HBA Heartbeat disabled
3215 # 1 = HBA Heartbeat enabled (default)
3216 # Value range is [0,1]. Default value is 1.
3218 LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat.");
3221 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
3222 # 0 = BlockGuard disabled (default)
3223 # 1 = BlockGuard enabled
3224 # Value range is [0,1]. Default value is 0.
3226 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
3230 # - Bit mask of host protection capabilities used to register with the
3232 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
3233 # - Allows you to ultimately specify which profiles to use
3234 # - Default will result in registering capabilities for all profiles.
3237 unsigned int lpfc_prot_mask = SHOST_DIX_TYPE0_PROTECTION;
3239 module_param(lpfc_prot_mask, uint, 0);
3240 MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
3243 # lpfc_prot_guard: i
3244 # - Bit mask of protection guard types to register with the SCSI mid-layer
3245 # - Guard types are currently either 1) IP checksum 2) T10-DIF CRC
3246 # - Allows you to ultimately specify which profiles to use
3247 # - Default will result in registering capabilities for all guard types
3250 unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
3251 module_param(lpfc_prot_guard, byte, 0);
3252 MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
3256 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
3257 * This value can be set to values between 64 and 256. The default value is
3258 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
3259 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
3261 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
3262 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
3264 LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_PROT_SG_SEG_CNT,
3265 LPFC_DEFAULT_PROT_SG_SEG_CNT, LPFC_MAX_PROT_SG_SEG_CNT,
3266 "Max Protection Scatter Gather Segment Count");
3268 struct device_attribute *lpfc_hba_attrs[] = {
3270 &dev_attr_bg_guard_err,
3271 &dev_attr_bg_apptag_err,
3272 &dev_attr_bg_reftag_err,
3274 &dev_attr_serialnum,
3275 &dev_attr_modeldesc,
3276 &dev_attr_modelname,
3277 &dev_attr_programtype,
3281 &dev_attr_option_rom_version,
3282 &dev_attr_link_state,
3283 &dev_attr_num_discovered_ports,
3284 &dev_attr_menlo_mgmt_mode,
3285 &dev_attr_lpfc_drvr_version,
3286 &dev_attr_lpfc_enable_fip,
3287 &dev_attr_lpfc_temp_sensor,
3288 &dev_attr_lpfc_log_verbose,
3289 &dev_attr_lpfc_lun_queue_depth,
3290 &dev_attr_lpfc_hba_queue_depth,
3291 &dev_attr_lpfc_peer_port_login,
3292 &dev_attr_lpfc_nodev_tmo,
3293 &dev_attr_lpfc_devloss_tmo,
3294 &dev_attr_lpfc_fcp_class,
3295 &dev_attr_lpfc_use_adisc,
3296 &dev_attr_lpfc_ack0,
3297 &dev_attr_lpfc_topology,
3298 &dev_attr_lpfc_scan_down,
3299 &dev_attr_lpfc_link_speed,
3300 &dev_attr_lpfc_cr_delay,
3301 &dev_attr_lpfc_cr_count,
3302 &dev_attr_lpfc_multi_ring_support,
3303 &dev_attr_lpfc_multi_ring_rctl,
3304 &dev_attr_lpfc_multi_ring_type,
3305 &dev_attr_lpfc_fdmi_on,
3306 &dev_attr_lpfc_max_luns,
3307 &dev_attr_lpfc_enable_npiv,
3308 &dev_attr_nport_evt_cnt,
3309 &dev_attr_board_mode,
3316 &dev_attr_npiv_info,
3317 &dev_attr_issue_reset,
3318 &dev_attr_lpfc_poll,
3319 &dev_attr_lpfc_poll_tmo,
3320 &dev_attr_lpfc_use_msi,
3321 &dev_attr_lpfc_fcp_imax,
3322 &dev_attr_lpfc_fcp_wq_count,
3323 &dev_attr_lpfc_fcp_eq_count,
3324 &dev_attr_lpfc_enable_bg,
3325 &dev_attr_lpfc_soft_wwnn,
3326 &dev_attr_lpfc_soft_wwpn,
3327 &dev_attr_lpfc_soft_wwn_enable,
3328 &dev_attr_lpfc_enable_hba_reset,
3329 &dev_attr_lpfc_enable_hba_heartbeat,
3330 &dev_attr_lpfc_sg_seg_cnt,
3331 &dev_attr_lpfc_max_scsicmpl_time,
3332 &dev_attr_lpfc_stat_data_ctrl,
3333 &dev_attr_lpfc_prot_sg_seg_cnt,
3334 &dev_attr_lpfc_aer_support,
3335 &dev_attr_lpfc_aer_state_cleanup,
3336 &dev_attr_lpfc_suppress_link_up,
3340 struct device_attribute *lpfc_vport_attrs[] = {
3342 &dev_attr_link_state,
3343 &dev_attr_num_discovered_ports,
3344 &dev_attr_lpfc_drvr_version,
3345 &dev_attr_lpfc_log_verbose,
3346 &dev_attr_lpfc_lun_queue_depth,
3347 &dev_attr_lpfc_nodev_tmo,
3348 &dev_attr_lpfc_devloss_tmo,
3349 &dev_attr_lpfc_hba_queue_depth,
3350 &dev_attr_lpfc_peer_port_login,
3351 &dev_attr_lpfc_restrict_login,
3352 &dev_attr_lpfc_fcp_class,
3353 &dev_attr_lpfc_use_adisc,
3354 &dev_attr_lpfc_fdmi_on,
3355 &dev_attr_lpfc_max_luns,
3356 &dev_attr_nport_evt_cnt,
3357 &dev_attr_npiv_info,
3358 &dev_attr_lpfc_enable_da_id,
3359 &dev_attr_lpfc_max_scsicmpl_time,
3360 &dev_attr_lpfc_stat_data_ctrl,
3361 &dev_attr_lpfc_static_vport,
3366 * sysfs_ctlreg_write - Write method for writing to ctlreg
3367 * @filp: open sysfs file
3368 * @kobj: kernel kobject that contains the kernel class device.
3369 * @bin_attr: kernel attributes passed to us.
3370 * @buf: contains the data to be written to the adapter IOREG space.
3371 * @off: offset into buffer to beginning of data.
3372 * @count: bytes to transfer.
3375 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
3376 * Uses the adapter io control registers to send buf contents to the adapter.
3379 * -ERANGE off and count combo out of range
3380 * -EINVAL off, count or buff address invalid
3381 * -EPERM adapter is offline
3382 * value of count, buf contents written
3385 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
3386 struct bin_attribute *bin_attr,
3387 char *buf, loff_t off, size_t count)
3390 struct device *dev = container_of(kobj, struct device, kobj);
3391 struct Scsi_Host *shost = class_to_shost(dev);
3392 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3393 struct lpfc_hba *phba = vport->phba;
3395 if (phba->sli_rev >= LPFC_SLI_REV4)
3398 if ((off + count) > FF_REG_AREA_SIZE)
3401 if (count == 0) return 0;
3403 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3406 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3410 spin_lock_irq(&phba->hbalock);
3411 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
3412 writel(*((uint32_t *)(buf + buf_off)),
3413 phba->ctrl_regs_memmap_p + off + buf_off);
3415 spin_unlock_irq(&phba->hbalock);
3421 * sysfs_ctlreg_read - Read method for reading from ctlreg
3422 * @filp: open sysfs file
3423 * @kobj: kernel kobject that contains the kernel class device.
3424 * @bin_attr: kernel attributes passed to us.
3425 * @buf: if successful contains the data from the adapter IOREG space.
3426 * @off: offset into buffer to beginning of data.
3427 * @count: bytes to transfer.
3430 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
3431 * Uses the adapter io control registers to read data into buf.
3434 * -ERANGE off and count combo out of range
3435 * -EINVAL off, count or buff address invalid
3436 * value of count, buf contents read
3439 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
3440 struct bin_attribute *bin_attr,
3441 char *buf, loff_t off, size_t count)
3445 struct device *dev = container_of(kobj, struct device, kobj);
3446 struct Scsi_Host *shost = class_to_shost(dev);
3447 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3448 struct lpfc_hba *phba = vport->phba;
3450 if (phba->sli_rev >= LPFC_SLI_REV4)
3453 if (off > FF_REG_AREA_SIZE)
3456 if ((off + count) > FF_REG_AREA_SIZE)
3457 count = FF_REG_AREA_SIZE - off;
3459 if (count == 0) return 0;
3461 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3464 spin_lock_irq(&phba->hbalock);
3466 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
3467 tmp_ptr = (uint32_t *)(buf + buf_off);
3468 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
3471 spin_unlock_irq(&phba->hbalock);
3476 static struct bin_attribute sysfs_ctlreg_attr = {
3479 .mode = S_IRUSR | S_IWUSR,
3482 .read = sysfs_ctlreg_read,
3483 .write = sysfs_ctlreg_write,
3487 * sysfs_mbox_idle - frees the sysfs mailbox
3488 * @phba: lpfc_hba pointer
3491 sysfs_mbox_idle(struct lpfc_hba *phba)
3493 phba->sysfs_mbox.state = SMBOX_IDLE;
3494 phba->sysfs_mbox.offset = 0;
3496 if (phba->sysfs_mbox.mbox) {
3497 mempool_free(phba->sysfs_mbox.mbox,
3498 phba->mbox_mem_pool);
3499 phba->sysfs_mbox.mbox = NULL;
3504 * sysfs_mbox_write - Write method for writing information via mbox
3505 * @filp: open sysfs file
3506 * @kobj: kernel kobject that contains the kernel class device.
3507 * @bin_attr: kernel attributes passed to us.
3508 * @buf: contains the data to be written to sysfs mbox.
3509 * @off: offset into buffer to beginning of data.
3510 * @count: bytes to transfer.
3513 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3514 * Uses the sysfs mbox to send buf contents to the adapter.
3517 * -ERANGE off and count combo out of range
3518 * -EINVAL off, count or buff address invalid
3519 * zero if count is zero
3520 * -EPERM adapter is offline
3521 * -ENOMEM failed to allocate memory for the mail box
3522 * -EAGAIN offset, state or mbox is NULL
3523 * count number of bytes transferred
3526 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
3527 struct bin_attribute *bin_attr,
3528 char *buf, loff_t off, size_t count)
3530 struct device *dev = container_of(kobj, struct device, kobj);
3531 struct Scsi_Host *shost = class_to_shost(dev);
3532 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3533 struct lpfc_hba *phba = vport->phba;
3534 struct lpfcMboxq *mbox = NULL;
3536 if ((count + off) > MAILBOX_CMD_SIZE)
3539 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3546 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3549 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
3552 spin_lock_irq(&phba->hbalock);
3555 if (phba->sysfs_mbox.mbox)
3556 mempool_free(mbox, phba->mbox_mem_pool);
3558 phba->sysfs_mbox.mbox = mbox;
3559 phba->sysfs_mbox.state = SMBOX_WRITING;
3561 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
3562 phba->sysfs_mbox.offset != off ||
3563 phba->sysfs_mbox.mbox == NULL) {
3564 sysfs_mbox_idle(phba);
3565 spin_unlock_irq(&phba->hbalock);
3570 memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off,
3573 phba->sysfs_mbox.offset = off + count;
3575 spin_unlock_irq(&phba->hbalock);
3581 * sysfs_mbox_read - Read method for reading information via mbox
3582 * @filp: open sysfs file
3583 * @kobj: kernel kobject that contains the kernel class device.
3584 * @bin_attr: kernel attributes passed to us.
3585 * @buf: contains the data to be read from sysfs mbox.
3586 * @off: offset into buffer to beginning of data.
3587 * @count: bytes to transfer.
3590 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3591 * Uses the sysfs mbox to receive data from to the adapter.
3594 * -ERANGE off greater than mailbox command size
3595 * -EINVAL off, count or buff address invalid
3596 * zero if off and count are zero
3597 * -EACCES adapter over temp
3598 * -EPERM garbage can value to catch a multitude of errors
3599 * -EAGAIN management IO not permitted, state or off error
3600 * -ETIME mailbox timeout
3601 * -ENODEV mailbox error
3602 * count number of bytes transferred
3605 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
3606 struct bin_attribute *bin_attr,
3607 char *buf, loff_t off, size_t count)
3609 struct device *dev = container_of(kobj, struct device, kobj);
3610 struct Scsi_Host *shost = class_to_shost(dev);
3611 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3612 struct lpfc_hba *phba = vport->phba;
3616 if (off > MAILBOX_CMD_SIZE)
3619 if ((count + off) > MAILBOX_CMD_SIZE)
3620 count = MAILBOX_CMD_SIZE - off;
3622 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3625 if (off && count == 0)
3628 spin_lock_irq(&phba->hbalock);
3630 if (phba->over_temp_state == HBA_OVER_TEMP) {
3631 sysfs_mbox_idle(phba);
3632 spin_unlock_irq(&phba->hbalock);
3637 phba->sysfs_mbox.state == SMBOX_WRITING &&
3638 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
3639 pmb = &phba->sysfs_mbox.mbox->u.mb;
3640 switch (pmb->mbxCommand) {
3644 case MBX_CONFIG_LINK:
3645 case MBX_CONFIG_RING:
3646 case MBX_RESET_RING:
3647 case MBX_UNREG_LOGIN:
3649 case MBX_DUMP_CONTEXT:
3654 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3655 printk(KERN_WARNING "mbox_read:Command 0x%x "
3656 "is illegal in on-line state\n",
3658 sysfs_mbox_idle(phba);
3659 spin_unlock_irq(&phba->hbalock);
3663 case MBX_WRITE_VPARMS:
3666 case MBX_READ_CONFIG:
3667 case MBX_READ_RCONFIG:
3668 case MBX_READ_STATUS:
3671 case MBX_READ_LNK_STAT:
3672 case MBX_DUMP_MEMORY:
3674 case MBX_UPDATE_CFG:
3675 case MBX_KILL_BOARD:
3677 case MBX_LOAD_EXP_ROM:
3679 case MBX_DEL_LD_ENTRY:
3680 case MBX_SET_VARIABLE:
3682 case MBX_PORT_CAPABILITIES:
3683 case MBX_PORT_IOV_CONTROL:
3685 case MBX_READ_SPARM64:
3689 case MBX_REG_LOGIN64:
3690 case MBX_CONFIG_PORT:
3691 case MBX_RUN_BIU_DIAG:
3692 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
3694 sysfs_mbox_idle(phba);
3695 spin_unlock_irq(&phba->hbalock);
3698 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
3700 sysfs_mbox_idle(phba);
3701 spin_unlock_irq(&phba->hbalock);
3705 /* If HBA encountered an error attention, allow only DUMP
3706 * or RESTART mailbox commands until the HBA is restarted.
3708 if (phba->pport->stopped &&
3709 pmb->mbxCommand != MBX_DUMP_MEMORY &&
3710 pmb->mbxCommand != MBX_RESTART &&
3711 pmb->mbxCommand != MBX_WRITE_VPARMS &&
3712 pmb->mbxCommand != MBX_WRITE_WWN)
3713 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
3714 "1259 mbox: Issued mailbox cmd "
3715 "0x%x while in stopped state.\n",
3718 phba->sysfs_mbox.mbox->vport = vport;
3720 /* Don't allow mailbox commands to be sent when blocked
3721 * or when in the middle of discovery
3723 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
3724 sysfs_mbox_idle(phba);
3725 spin_unlock_irq(&phba->hbalock);
3729 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
3730 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
3732 spin_unlock_irq(&phba->hbalock);
3733 rc = lpfc_sli_issue_mbox (phba,
3734 phba->sysfs_mbox.mbox,
3736 spin_lock_irq(&phba->hbalock);
3739 spin_unlock_irq(&phba->hbalock);
3740 rc = lpfc_sli_issue_mbox_wait (phba,
3741 phba->sysfs_mbox.mbox,
3742 lpfc_mbox_tmo_val(phba, pmb->mbxCommand) * HZ);
3743 spin_lock_irq(&phba->hbalock);
3746 if (rc != MBX_SUCCESS) {
3747 if (rc == MBX_TIMEOUT) {
3748 phba->sysfs_mbox.mbox = NULL;
3750 sysfs_mbox_idle(phba);
3751 spin_unlock_irq(&phba->hbalock);
3752 return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
3754 phba->sysfs_mbox.state = SMBOX_READING;
3756 else if (phba->sysfs_mbox.offset != off ||
3757 phba->sysfs_mbox.state != SMBOX_READING) {
3758 printk(KERN_WARNING "mbox_read: Bad State\n");
3759 sysfs_mbox_idle(phba);
3760 spin_unlock_irq(&phba->hbalock);
3764 memcpy(buf, (uint8_t *) &pmb + off, count);
3766 phba->sysfs_mbox.offset = off + count;
3768 if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
3769 sysfs_mbox_idle(phba);
3771 spin_unlock_irq(&phba->hbalock);
3776 static struct bin_attribute sysfs_mbox_attr = {
3779 .mode = S_IRUSR | S_IWUSR,
3781 .size = MAILBOX_CMD_SIZE,
3782 .read = sysfs_mbox_read,
3783 .write = sysfs_mbox_write,
3787 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
3788 * @vport: address of lpfc vport structure.
3792 * error return code from sysfs_create_bin_file()
3795 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
3797 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3800 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3801 &sysfs_drvr_stat_data_attr);
3803 /* Virtual ports do not need ctrl_reg and mbox */
3804 if (error || vport->port_type == LPFC_NPIV_PORT)
3807 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3808 &sysfs_ctlreg_attr);
3810 goto out_remove_stat_attr;
3812 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3815 goto out_remove_ctlreg_attr;
3818 out_remove_ctlreg_attr:
3819 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
3820 out_remove_stat_attr:
3821 sysfs_remove_bin_file(&shost->shost_dev.kobj,
3822 &sysfs_drvr_stat_data_attr);
3828 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
3829 * @vport: address of lpfc vport structure.
3832 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
3834 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3835 sysfs_remove_bin_file(&shost->shost_dev.kobj,
3836 &sysfs_drvr_stat_data_attr);
3837 /* Virtual ports do not need ctrl_reg and mbox */
3838 if (vport->port_type == LPFC_NPIV_PORT)
3840 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
3841 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
3846 * Dynamic FC Host Attributes Support
3850 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
3851 * @shost: kernel scsi host pointer.
3854 lpfc_get_host_port_id(struct Scsi_Host *shost)
3856 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3858 /* note: fc_myDID already in cpu endianness */
3859 fc_host_port_id(shost) = vport->fc_myDID;
3863 * lpfc_get_host_port_type - Set the value of the scsi host port type
3864 * @shost: kernel scsi host pointer.
3867 lpfc_get_host_port_type(struct Scsi_Host *shost)
3869 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3870 struct lpfc_hba *phba = vport->phba;
3872 spin_lock_irq(shost->host_lock);
3874 if (vport->port_type == LPFC_NPIV_PORT) {
3875 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
3876 } else if (lpfc_is_link_up(phba)) {
3877 if (phba->fc_topology == TOPOLOGY_LOOP) {
3878 if (vport->fc_flag & FC_PUBLIC_LOOP)
3879 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
3881 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
3883 if (vport->fc_flag & FC_FABRIC)
3884 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
3886 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
3889 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
3891 spin_unlock_irq(shost->host_lock);
3895 * lpfc_get_host_port_state - Set the value of the scsi host port state
3896 * @shost: kernel scsi host pointer.
3899 lpfc_get_host_port_state(struct Scsi_Host *shost)
3901 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3902 struct lpfc_hba *phba = vport->phba;
3904 spin_lock_irq(shost->host_lock);
3906 if (vport->fc_flag & FC_OFFLINE_MODE)
3907 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
3909 switch (phba->link_state) {
3910 case LPFC_LINK_UNKNOWN:
3911 case LPFC_LINK_DOWN:
3912 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
3916 case LPFC_HBA_READY:
3917 /* Links up, beyond this port_type reports state */
3918 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
3920 case LPFC_HBA_ERROR:
3921 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
3924 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
3929 spin_unlock_irq(shost->host_lock);
3933 * lpfc_get_host_speed - Set the value of the scsi host speed
3934 * @shost: kernel scsi host pointer.
3937 lpfc_get_host_speed(struct Scsi_Host *shost)
3939 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3940 struct lpfc_hba *phba = vport->phba;
3942 spin_lock_irq(shost->host_lock);
3944 if (lpfc_is_link_up(phba)) {
3945 switch(phba->fc_linkspeed) {
3947 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
3950 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
3953 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
3956 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
3959 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
3962 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
3966 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
3968 spin_unlock_irq(shost->host_lock);
3972 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
3973 * @shost: kernel scsi host pointer.
3976 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
3978 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3979 struct lpfc_hba *phba = vport->phba;
3982 spin_lock_irq(shost->host_lock);
3984 if ((vport->fc_flag & FC_FABRIC) ||
3985 ((phba->fc_topology == TOPOLOGY_LOOP) &&
3986 (vport->fc_flag & FC_PUBLIC_LOOP)))
3987 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
3989 /* fabric is local port if there is no F/FL_Port */
3992 spin_unlock_irq(shost->host_lock);
3994 fc_host_fabric_name(shost) = node_name;
3998 * lpfc_get_stats - Return statistical information about the adapter
3999 * @shost: kernel scsi host pointer.
4002 * NULL on error for link down, no mbox pool, sli2 active,
4003 * management not allowed, memory allocation error, or mbox error.
4007 * address of the adapter host statistics
4009 static struct fc_host_statistics *
4010 lpfc_get_stats(struct Scsi_Host *shost)
4012 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4013 struct lpfc_hba *phba = vport->phba;
4014 struct lpfc_sli *psli = &phba->sli;
4015 struct fc_host_statistics *hs = &phba->link_stats;
4016 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
4017 LPFC_MBOXQ_t *pmboxq;
4019 unsigned long seconds;
4023 * prevent udev from issuing mailbox commands until the port is
4026 if (phba->link_state < LPFC_LINK_DOWN ||
4027 !phba->mbox_mem_pool ||
4028 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
4031 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4034 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4037 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
4039 pmb = &pmboxq->u.mb;
4040 pmb->mbxCommand = MBX_READ_STATUS;
4041 pmb->mbxOwner = OWN_HOST;
4042 pmboxq->context1 = NULL;
4043 pmboxq->vport = vport;
4045 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4046 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4047 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4049 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4051 if (rc != MBX_SUCCESS) {
4052 if (rc != MBX_TIMEOUT)
4053 mempool_free(pmboxq, phba->mbox_mem_pool);
4057 memset(hs, 0, sizeof (struct fc_host_statistics));
4059 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
4060 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
4061 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
4062 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
4064 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
4065 pmb->mbxCommand = MBX_READ_LNK_STAT;
4066 pmb->mbxOwner = OWN_HOST;
4067 pmboxq->context1 = NULL;
4068 pmboxq->vport = vport;
4070 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4071 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4072 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4074 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4076 if (rc != MBX_SUCCESS) {
4077 if (rc != MBX_TIMEOUT)
4078 mempool_free(pmboxq, phba->mbox_mem_pool);
4082 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
4083 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
4084 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
4085 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
4086 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
4087 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
4088 hs->error_frames = pmb->un.varRdLnk.crcCnt;
4090 hs->link_failure_count -= lso->link_failure_count;
4091 hs->loss_of_sync_count -= lso->loss_of_sync_count;
4092 hs->loss_of_signal_count -= lso->loss_of_signal_count;
4093 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
4094 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
4095 hs->invalid_crc_count -= lso->invalid_crc_count;
4096 hs->error_frames -= lso->error_frames;
4098 if (phba->hba_flag & HBA_FCOE_SUPPORT) {
4100 hs->nos_count = (phba->link_events >> 1);
4101 hs->nos_count -= lso->link_events;
4102 } else if (phba->fc_topology == TOPOLOGY_LOOP) {
4103 hs->lip_count = (phba->fc_eventTag >> 1);
4104 hs->lip_count -= lso->link_events;
4108 hs->nos_count = (phba->fc_eventTag >> 1);
4109 hs->nos_count -= lso->link_events;
4112 hs->dumped_frames = -1;
4114 seconds = get_seconds();
4115 if (seconds < psli->stats_start)
4116 hs->seconds_since_last_reset = seconds +
4117 ((unsigned long)-1 - psli->stats_start);
4119 hs->seconds_since_last_reset = seconds - psli->stats_start;
4121 mempool_free(pmboxq, phba->mbox_mem_pool);
4127 * lpfc_reset_stats - Copy the adapter link stats information
4128 * @shost: kernel scsi host pointer.
4131 lpfc_reset_stats(struct Scsi_Host *shost)
4133 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4134 struct lpfc_hba *phba = vport->phba;
4135 struct lpfc_sli *psli = &phba->sli;
4136 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
4137 LPFC_MBOXQ_t *pmboxq;
4141 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4144 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4147 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4149 pmb = &pmboxq->u.mb;
4150 pmb->mbxCommand = MBX_READ_STATUS;
4151 pmb->mbxOwner = OWN_HOST;
4152 pmb->un.varWords[0] = 0x1; /* reset request */
4153 pmboxq->context1 = NULL;
4154 pmboxq->vport = vport;
4156 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4157 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4158 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4160 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4162 if (rc != MBX_SUCCESS) {
4163 if (rc != MBX_TIMEOUT)
4164 mempool_free(pmboxq, phba->mbox_mem_pool);
4168 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4169 pmb->mbxCommand = MBX_READ_LNK_STAT;
4170 pmb->mbxOwner = OWN_HOST;
4171 pmboxq->context1 = NULL;
4172 pmboxq->vport = vport;
4174 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4175 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4176 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4178 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4180 if (rc != MBX_SUCCESS) {
4181 if (rc != MBX_TIMEOUT)
4182 mempool_free( pmboxq, phba->mbox_mem_pool);
4186 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
4187 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
4188 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
4189 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
4190 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
4191 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
4192 lso->error_frames = pmb->un.varRdLnk.crcCnt;
4193 if (phba->hba_flag & HBA_FCOE_SUPPORT)
4194 lso->link_events = (phba->link_events >> 1);
4196 lso->link_events = (phba->fc_eventTag >> 1);
4198 psli->stats_start = get_seconds();
4200 mempool_free(pmboxq, phba->mbox_mem_pool);
4206 * The LPFC driver treats linkdown handling as target loss events so there
4207 * are no sysfs handlers for link_down_tmo.
4211 * lpfc_get_node_by_target - Return the nodelist for a target
4212 * @starget: kernel scsi target pointer.
4215 * address of the node list if found
4216 * NULL target not found
4218 static struct lpfc_nodelist *
4219 lpfc_get_node_by_target(struct scsi_target *starget)
4221 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
4222 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4223 struct lpfc_nodelist *ndlp;
4225 spin_lock_irq(shost->host_lock);
4226 /* Search for this, mapped, target ID */
4227 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4228 if (NLP_CHK_NODE_ACT(ndlp) &&
4229 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
4230 starget->id == ndlp->nlp_sid) {
4231 spin_unlock_irq(shost->host_lock);
4235 spin_unlock_irq(shost->host_lock);
4240 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
4241 * @starget: kernel scsi target pointer.
4244 lpfc_get_starget_port_id(struct scsi_target *starget)
4246 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4248 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
4252 * lpfc_get_starget_node_name - Set the target node name
4253 * @starget: kernel scsi target pointer.
4255 * Description: Set the target node name to the ndlp node name wwn or zero.
4258 lpfc_get_starget_node_name(struct scsi_target *starget)
4260 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4262 fc_starget_node_name(starget) =
4263 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
4267 * lpfc_get_starget_port_name - Set the target port name
4268 * @starget: kernel scsi target pointer.
4270 * Description: set the target port name to the ndlp port name wwn or zero.
4273 lpfc_get_starget_port_name(struct scsi_target *starget)
4275 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4277 fc_starget_port_name(starget) =
4278 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
4282 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
4283 * @rport: fc rport address.
4284 * @timeout: new value for dev loss tmo.
4287 * If timeout is non zero set the dev_loss_tmo to timeout, else set
4288 * dev_loss_tmo to one.
4291 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
4294 rport->dev_loss_tmo = timeout;
4296 rport->dev_loss_tmo = 1;
4300 * lpfc_rport_show_function - Return rport target information
4303 * Macro that uses field to generate a function with the name lpfc_show_rport_
4305 * lpfc_show_rport_##field: returns the bytes formatted in buf
4306 * @cdev: class converted to an fc_rport.
4307 * @buf: on return contains the target_field or zero.
4309 * Returns: size of formatted string.
4311 #define lpfc_rport_show_function(field, format_string, sz, cast) \
4313 lpfc_show_rport_##field (struct device *dev, \
4314 struct device_attribute *attr, \
4317 struct fc_rport *rport = transport_class_to_rport(dev); \
4318 struct lpfc_rport_data *rdata = rport->hostdata; \
4319 return snprintf(buf, sz, format_string, \
4320 (rdata->target) ? cast rdata->target->field : 0); \
4323 #define lpfc_rport_rd_attr(field, format_string, sz) \
4324 lpfc_rport_show_function(field, format_string, sz, ) \
4325 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
4328 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
4329 * @fc_vport: The fc_vport who's symbolic name has been changed.
4332 * This function is called by the transport after the @fc_vport's symbolic name
4333 * has been changed. This function re-registers the symbolic name with the
4334 * switch to propogate the change into the fabric if the vport is active.
4337 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
4339 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
4341 if (vport->port_state == LPFC_VPORT_READY)
4342 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
4346 * lpfc_hba_log_verbose_init - Set hba's log verbose level
4347 * @phba: Pointer to lpfc_hba struct.
4349 * This function is called by the lpfc_get_cfgparam() routine to set the
4350 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
4351 * log messsage according to the module's lpfc_log_verbose parameter setting
4352 * before hba port or vport created.
4355 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
4357 phba->cfg_log_verbose = verbose;
4360 struct fc_function_template lpfc_transport_functions = {
4361 /* fixed attributes the driver supports */
4362 .show_host_node_name = 1,
4363 .show_host_port_name = 1,
4364 .show_host_supported_classes = 1,
4365 .show_host_supported_fc4s = 1,
4366 .show_host_supported_speeds = 1,
4367 .show_host_maxframe_size = 1,
4368 .show_host_symbolic_name = 1,
4370 /* dynamic attributes the driver supports */
4371 .get_host_port_id = lpfc_get_host_port_id,
4372 .show_host_port_id = 1,
4374 .get_host_port_type = lpfc_get_host_port_type,
4375 .show_host_port_type = 1,
4377 .get_host_port_state = lpfc_get_host_port_state,
4378 .show_host_port_state = 1,
4380 /* active_fc4s is shown but doesn't change (thus no get function) */
4381 .show_host_active_fc4s = 1,
4383 .get_host_speed = lpfc_get_host_speed,
4384 .show_host_speed = 1,
4386 .get_host_fabric_name = lpfc_get_host_fabric_name,
4387 .show_host_fabric_name = 1,
4390 * The LPFC driver treats linkdown handling as target loss events
4391 * so there are no sysfs handlers for link_down_tmo.
4394 .get_fc_host_stats = lpfc_get_stats,
4395 .reset_fc_host_stats = lpfc_reset_stats,
4397 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
4398 .show_rport_maxframe_size = 1,
4399 .show_rport_supported_classes = 1,
4401 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
4402 .show_rport_dev_loss_tmo = 1,
4404 .get_starget_port_id = lpfc_get_starget_port_id,
4405 .show_starget_port_id = 1,
4407 .get_starget_node_name = lpfc_get_starget_node_name,
4408 .show_starget_node_name = 1,
4410 .get_starget_port_name = lpfc_get_starget_port_name,
4411 .show_starget_port_name = 1,
4413 .issue_fc_host_lip = lpfc_issue_lip,
4414 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
4415 .terminate_rport_io = lpfc_terminate_rport_io,
4417 .dd_fcvport_size = sizeof(struct lpfc_vport *),
4419 .vport_disable = lpfc_vport_disable,
4421 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4423 .bsg_request = lpfc_bsg_request,
4424 .bsg_timeout = lpfc_bsg_timeout,
4427 struct fc_function_template lpfc_vport_transport_functions = {
4428 /* fixed attributes the driver supports */
4429 .show_host_node_name = 1,
4430 .show_host_port_name = 1,
4431 .show_host_supported_classes = 1,
4432 .show_host_supported_fc4s = 1,
4433 .show_host_supported_speeds = 1,
4434 .show_host_maxframe_size = 1,
4435 .show_host_symbolic_name = 1,
4437 /* dynamic attributes the driver supports */
4438 .get_host_port_id = lpfc_get_host_port_id,
4439 .show_host_port_id = 1,
4441 .get_host_port_type = lpfc_get_host_port_type,
4442 .show_host_port_type = 1,
4444 .get_host_port_state = lpfc_get_host_port_state,
4445 .show_host_port_state = 1,
4447 /* active_fc4s is shown but doesn't change (thus no get function) */
4448 .show_host_active_fc4s = 1,
4450 .get_host_speed = lpfc_get_host_speed,
4451 .show_host_speed = 1,
4453 .get_host_fabric_name = lpfc_get_host_fabric_name,
4454 .show_host_fabric_name = 1,
4457 * The LPFC driver treats linkdown handling as target loss events
4458 * so there are no sysfs handlers for link_down_tmo.
4461 .get_fc_host_stats = lpfc_get_stats,
4462 .reset_fc_host_stats = lpfc_reset_stats,
4464 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
4465 .show_rport_maxframe_size = 1,
4466 .show_rport_supported_classes = 1,
4468 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
4469 .show_rport_dev_loss_tmo = 1,
4471 .get_starget_port_id = lpfc_get_starget_port_id,
4472 .show_starget_port_id = 1,
4474 .get_starget_node_name = lpfc_get_starget_node_name,
4475 .show_starget_node_name = 1,
4477 .get_starget_port_name = lpfc_get_starget_port_name,
4478 .show_starget_port_name = 1,
4480 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
4481 .terminate_rport_io = lpfc_terminate_rport_io,
4483 .vport_disable = lpfc_vport_disable,
4485 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4489 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
4490 * @phba: lpfc_hba pointer.
4493 lpfc_get_cfgparam(struct lpfc_hba *phba)
4495 lpfc_cr_delay_init(phba, lpfc_cr_delay);
4496 lpfc_cr_count_init(phba, lpfc_cr_count);
4497 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
4498 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
4499 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
4500 lpfc_ack0_init(phba, lpfc_ack0);
4501 lpfc_topology_init(phba, lpfc_topology);
4502 lpfc_link_speed_init(phba, lpfc_link_speed);
4503 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
4504 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
4505 lpfc_use_msi_init(phba, lpfc_use_msi);
4506 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
4507 lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count);
4508 lpfc_fcp_eq_count_init(phba, lpfc_fcp_eq_count);
4509 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
4510 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
4511 lpfc_enable_bg_init(phba, lpfc_enable_bg);
4512 if (phba->sli_rev == LPFC_SLI_REV4)
4515 phba->cfg_poll = lpfc_poll;
4516 phba->cfg_soft_wwnn = 0L;
4517 phba->cfg_soft_wwpn = 0L;
4518 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
4519 lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
4520 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
4521 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
4522 lpfc_aer_support_init(phba, lpfc_aer_support);
4523 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
4528 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
4529 * @vport: lpfc_vport pointer.
4532 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
4534 lpfc_log_verbose_init(vport, lpfc_log_verbose);
4535 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
4536 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
4537 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
4538 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
4539 lpfc_restrict_login_init(vport, lpfc_restrict_login);
4540 lpfc_fcp_class_init(vport, lpfc_fcp_class);
4541 lpfc_use_adisc_init(vport, lpfc_use_adisc);
4542 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
4543 lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
4544 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
4545 lpfc_max_luns_init(vport, lpfc_max_luns);
4546 lpfc_scan_down_init(vport, lpfc_scan_down);
4547 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);