1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/ctype.h>
23 #include <linux/delay.h>
24 #include <linux/pci.h>
25 #include <linux/interrupt.h>
26 #include <linux/aer.h>
27 #include <linux/gfp.h>
28 #include <linux/kernel.h>
30 #include <scsi/scsi.h>
31 #include <scsi/scsi_device.h>
32 #include <scsi/scsi_host.h>
33 #include <scsi/scsi_tcq.h>
34 #include <scsi/scsi_transport_fc.h>
35 #include <scsi/fc/fc_fs.h>
40 #include "lpfc_sli4.h"
42 #include "lpfc_disc.h"
43 #include "lpfc_scsi.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_version.h"
47 #include "lpfc_compat.h"
48 #include "lpfc_crtn.h"
49 #include "lpfc_vport.h"
51 #define LPFC_DEF_DEVLOSS_TMO 30
52 #define LPFC_MIN_DEVLOSS_TMO 1
53 #define LPFC_MAX_DEVLOSS_TMO 255
55 #define LPFC_MAX_LINK_SPEED 8
56 #define LPFC_LINK_SPEED_BITMAP 0x00000117
57 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8"
60 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
61 * @incr: integer to convert.
62 * @hdw: ascii string holding converted integer plus a string terminator.
65 * JEDEC Joint Electron Device Engineering Council.
66 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
67 * character string. The string is then terminated with a NULL in byte 9.
68 * Hex 0-9 becomes ascii '0' to '9'.
69 * Hex a-f becomes ascii '=' to 'B' capital B.
72 * Coded for 32 bit integers only.
75 lpfc_jedec_to_ascii(int incr, char hdw[])
78 for (i = 0; i < 8; i++) {
81 hdw[7 - i] = 0x30 + j;
83 hdw[7 - i] = 0x61 + j - 10;
91 * lpfc_drvr_version_show - Return the Emulex driver string with version number
92 * @dev: class unused variable.
93 * @attr: device attribute, not used.
94 * @buf: on return contains the module description text.
96 * Returns: size of formatted string.
99 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
102 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
106 * lpfc_enable_fip_show - Return the fip mode of the HBA
107 * @dev: class unused variable.
108 * @attr: device attribute, not used.
109 * @buf: on return contains the module description text.
111 * Returns: size of formatted string.
114 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
117 struct Scsi_Host *shost = class_to_shost(dev);
118 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
119 struct lpfc_hba *phba = vport->phba;
121 if (phba->hba_flag & HBA_FIP_SUPPORT)
122 return snprintf(buf, PAGE_SIZE, "1\n");
124 return snprintf(buf, PAGE_SIZE, "0\n");
128 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
131 struct Scsi_Host *shost = class_to_shost(dev);
132 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
133 struct lpfc_hba *phba = vport->phba;
135 if (phba->cfg_enable_bg)
136 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
137 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
139 return snprintf(buf, PAGE_SIZE,
140 "BlockGuard Not Supported\n");
142 return snprintf(buf, PAGE_SIZE,
143 "BlockGuard Disabled\n");
147 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
150 struct Scsi_Host *shost = class_to_shost(dev);
151 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
152 struct lpfc_hba *phba = vport->phba;
154 return snprintf(buf, PAGE_SIZE, "%llu\n",
155 (unsigned long long)phba->bg_guard_err_cnt);
159 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
162 struct Scsi_Host *shost = class_to_shost(dev);
163 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
164 struct lpfc_hba *phba = vport->phba;
166 return snprintf(buf, PAGE_SIZE, "%llu\n",
167 (unsigned long long)phba->bg_apptag_err_cnt);
171 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
174 struct Scsi_Host *shost = class_to_shost(dev);
175 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
176 struct lpfc_hba *phba = vport->phba;
178 return snprintf(buf, PAGE_SIZE, "%llu\n",
179 (unsigned long long)phba->bg_reftag_err_cnt);
183 * lpfc_info_show - Return some pci info about the host in ascii
184 * @dev: class converted to a Scsi_host structure.
185 * @attr: device attribute, not used.
186 * @buf: on return contains the formatted text from lpfc_info().
188 * Returns: size of formatted string.
191 lpfc_info_show(struct device *dev, struct device_attribute *attr,
194 struct Scsi_Host *host = class_to_shost(dev);
196 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
200 * lpfc_serialnum_show - Return the hba serial number in ascii
201 * @dev: class converted to a Scsi_host structure.
202 * @attr: device attribute, not used.
203 * @buf: on return contains the formatted text serial number.
205 * Returns: size of formatted string.
208 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
211 struct Scsi_Host *shost = class_to_shost(dev);
212 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
213 struct lpfc_hba *phba = vport->phba;
215 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
219 * lpfc_temp_sensor_show - Return the temperature sensor level
220 * @dev: class converted to a Scsi_host structure.
221 * @attr: device attribute, not used.
222 * @buf: on return contains the formatted support level.
225 * Returns a number indicating the temperature sensor level currently
226 * supported, zero or one in ascii.
228 * Returns: size of formatted string.
231 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
234 struct Scsi_Host *shost = class_to_shost(dev);
235 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
236 struct lpfc_hba *phba = vport->phba;
237 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
241 * lpfc_modeldesc_show - Return the model description of the hba
242 * @dev: class converted to a Scsi_host structure.
243 * @attr: device attribute, not used.
244 * @buf: on return contains the scsi vpd model description.
246 * Returns: size of formatted string.
249 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
252 struct Scsi_Host *shost = class_to_shost(dev);
253 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
254 struct lpfc_hba *phba = vport->phba;
256 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
260 * lpfc_modelname_show - Return the model name of the hba
261 * @dev: class converted to a Scsi_host structure.
262 * @attr: device attribute, not used.
263 * @buf: on return contains the scsi vpd model name.
265 * Returns: size of formatted string.
268 lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
271 struct Scsi_Host *shost = class_to_shost(dev);
272 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
273 struct lpfc_hba *phba = vport->phba;
275 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
279 * lpfc_programtype_show - Return the program type of the hba
280 * @dev: class converted to a Scsi_host structure.
281 * @attr: device attribute, not used.
282 * @buf: on return contains the scsi vpd program type.
284 * Returns: size of formatted string.
287 lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
290 struct Scsi_Host *shost = class_to_shost(dev);
291 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
292 struct lpfc_hba *phba = vport->phba;
294 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
298 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
299 * @dev: class converted to a Scsi_host structure.
300 * @attr: device attribute, not used.
301 * @buf: on return contains the Menlo Maintenance sli flag.
303 * Returns: size of formatted string.
306 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
308 struct Scsi_Host *shost = class_to_shost(dev);
309 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
310 struct lpfc_hba *phba = vport->phba;
312 return snprintf(buf, PAGE_SIZE, "%d\n",
313 (phba->sli.sli_flag & LPFC_MENLO_MAINT));
317 * lpfc_vportnum_show - Return the port number in ascii of the hba
318 * @dev: class converted to a Scsi_host structure.
319 * @attr: device attribute, not used.
320 * @buf: on return contains scsi vpd program type.
322 * Returns: size of formatted string.
325 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
328 struct Scsi_Host *shost = class_to_shost(dev);
329 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
330 struct lpfc_hba *phba = vport->phba;
332 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
336 * lpfc_fwrev_show - Return the firmware rev running in the hba
337 * @dev: class converted to a Scsi_host structure.
338 * @attr: device attribute, not used.
339 * @buf: on return contains the scsi vpd program type.
341 * Returns: size of formatted string.
344 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
347 struct Scsi_Host *shost = class_to_shost(dev);
348 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
349 struct lpfc_hba *phba = vport->phba;
352 lpfc_decode_firmware_rev(phba, fwrev, 1);
353 return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
357 * lpfc_hdw_show - Return the jedec information about the hba
358 * @dev: class converted to a Scsi_host structure.
359 * @attr: device attribute, not used.
360 * @buf: on return contains the scsi vpd program type.
362 * Returns: size of formatted string.
365 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
368 struct Scsi_Host *shost = class_to_shost(dev);
369 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
370 struct lpfc_hba *phba = vport->phba;
371 lpfc_vpd_t *vp = &phba->vpd;
373 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
374 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
378 * lpfc_option_rom_version_show - Return the adapter ROM FCode version
379 * @dev: class converted to a Scsi_host structure.
380 * @attr: device attribute, not used.
381 * @buf: on return contains the ROM and FCode ascii strings.
383 * Returns: size of formatted string.
386 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
389 struct Scsi_Host *shost = class_to_shost(dev);
390 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
391 struct lpfc_hba *phba = vport->phba;
393 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
397 * lpfc_state_show - Return the link state of the port
398 * @dev: class converted to a Scsi_host structure.
399 * @attr: device attribute, not used.
400 * @buf: on return contains text describing the state of the link.
403 * The switch statement has no default so zero will be returned.
405 * Returns: size of formatted string.
408 lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
411 struct Scsi_Host *shost = class_to_shost(dev);
412 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
413 struct lpfc_hba *phba = vport->phba;
416 switch (phba->link_state) {
417 case LPFC_LINK_UNKNOWN:
418 case LPFC_WARM_START:
419 case LPFC_INIT_START:
420 case LPFC_INIT_MBX_CMDS:
423 if (phba->hba_flag & LINK_DISABLED)
424 len += snprintf(buf + len, PAGE_SIZE-len,
425 "Link Down - User disabled\n");
427 len += snprintf(buf + len, PAGE_SIZE-len,
433 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
435 switch (vport->port_state) {
436 case LPFC_LOCAL_CFG_LINK:
437 len += snprintf(buf + len, PAGE_SIZE-len,
438 "Configuring Link\n");
442 case LPFC_FABRIC_CFG_LINK:
445 case LPFC_BUILD_DISC_LIST:
447 len += snprintf(buf + len, PAGE_SIZE - len,
450 case LPFC_VPORT_READY:
451 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
454 case LPFC_VPORT_FAILED:
455 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
458 case LPFC_VPORT_UNKNOWN:
459 len += snprintf(buf + len, PAGE_SIZE - len,
463 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
464 len += snprintf(buf + len, PAGE_SIZE-len,
465 " Menlo Maint Mode\n");
466 else if (phba->fc_topology == TOPOLOGY_LOOP) {
467 if (vport->fc_flag & FC_PUBLIC_LOOP)
468 len += snprintf(buf + len, PAGE_SIZE-len,
471 len += snprintf(buf + len, PAGE_SIZE-len,
474 if (vport->fc_flag & FC_FABRIC)
475 len += snprintf(buf + len, PAGE_SIZE-len,
478 len += snprintf(buf + len, PAGE_SIZE-len,
487 * lpfc_link_state_store - Transition the link_state on an HBA port
488 * @dev: class device that is converted into a Scsi_host.
489 * @attr: device attribute, not used.
490 * @buf: one or more lpfc_polling_flags values.
494 * -EINVAL if the buffer is not "up" or "down"
495 * return from link state change function if non-zero
496 * length of the buf on success
499 lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
500 const char *buf, size_t count)
502 struct Scsi_Host *shost = class_to_shost(dev);
503 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
504 struct lpfc_hba *phba = vport->phba;
506 int status = -EINVAL;
508 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
509 (phba->link_state == LPFC_LINK_DOWN))
510 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
511 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
512 (phba->link_state >= LPFC_LINK_UP))
513 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
522 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
523 * @dev: class device that is converted into a Scsi_host.
524 * @attr: device attribute, not used.
525 * @buf: on return contains the sum of fc mapped and unmapped.
528 * Returns the ascii text number of the sum of the fc mapped and unmapped
531 * Returns: size of formatted string.
534 lpfc_num_discovered_ports_show(struct device *dev,
535 struct device_attribute *attr, char *buf)
537 struct Scsi_Host *shost = class_to_shost(dev);
538 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
540 return snprintf(buf, PAGE_SIZE, "%d\n",
541 vport->fc_map_cnt + vport->fc_unmap_cnt);
545 * lpfc_issue_lip - Misnomer, name carried over from long ago
546 * @shost: Scsi_Host pointer.
549 * Bring the link down gracefully then re-init the link. The firmware will
550 * re-init the fiber channel interface as required. Does not issue a LIP.
553 * -EPERM port offline or management commands are being blocked
554 * -ENOMEM cannot allocate memory for the mailbox command
555 * -EIO error sending the mailbox command
559 lpfc_issue_lip(struct Scsi_Host *shost)
561 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
562 struct lpfc_hba *phba = vport->phba;
563 LPFC_MBOXQ_t *pmboxq;
564 int mbxstatus = MBXERR_ERROR;
566 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
567 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
570 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
575 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
576 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
577 pmboxq->u.mb.mbxOwner = OWN_HOST;
579 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
581 if ((mbxstatus == MBX_SUCCESS) &&
582 (pmboxq->u.mb.mbxStatus == 0 ||
583 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
584 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
585 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
586 phba->cfg_link_speed);
587 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
589 if ((mbxstatus == MBX_SUCCESS) &&
590 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
591 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
592 "2859 SLI authentication is required "
593 "for INIT_LINK but has not done yet\n");
596 lpfc_set_loopback_flag(phba);
597 if (mbxstatus != MBX_TIMEOUT)
598 mempool_free(pmboxq, phba->mbox_mem_pool);
600 if (mbxstatus == MBXERR_ERROR)
607 * lpfc_do_offline - Issues a mailbox command to bring the link down
608 * @phba: lpfc_hba pointer.
609 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
612 * Assumes any error from lpfc_do_offline() will be negative.
613 * Can wait up to 5 seconds for the port ring buffers count
614 * to reach zero, prints a warning if it is not zero and continues.
615 * lpfc_workq_post_event() returns a non-zero return code if call fails.
618 * -EIO error posting the event
622 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
624 struct completion online_compl;
625 struct lpfc_sli_ring *pring;
626 struct lpfc_sli *psli;
631 init_completion(&online_compl);
632 lpfc_workq_post_event(phba, &status, &online_compl,
633 LPFC_EVT_OFFLINE_PREP);
634 wait_for_completion(&online_compl);
641 /* Wait a little for things to settle down, but not
642 * long enough for dev loss timeout to expire.
644 for (i = 0; i < psli->num_rings; i++) {
645 pring = &psli->ring[i];
646 while (pring->txcmplq_cnt) {
648 if (cnt++ > 500) { /* 5 secs */
649 lpfc_printf_log(phba,
650 KERN_WARNING, LOG_INIT,
651 "0466 Outstanding IO when "
652 "bringing Adapter offline\n");
658 init_completion(&online_compl);
659 lpfc_workq_post_event(phba, &status, &online_compl, type);
660 wait_for_completion(&online_compl);
669 * lpfc_selective_reset - Offline then onlines the port
670 * @phba: lpfc_hba pointer.
673 * If the port is configured to allow a reset then the hba is brought
674 * offline then online.
677 * Assumes any error from lpfc_do_offline() will be negative.
680 * lpfc_do_offline() return code if not zero
681 * -EIO reset not configured or error posting the event
685 lpfc_selective_reset(struct lpfc_hba *phba)
687 struct completion online_compl;
690 if (!phba->cfg_enable_hba_reset)
693 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
698 init_completion(&online_compl);
699 lpfc_workq_post_event(phba, &status, &online_compl,
701 wait_for_completion(&online_compl);
710 * lpfc_issue_reset - Selectively resets an adapter
711 * @dev: class device that is converted into a Scsi_host.
712 * @attr: device attribute, not used.
713 * @buf: containing the string "selective".
714 * @count: unused variable.
717 * If the buf contains the string "selective" then lpfc_selective_reset()
718 * is called to perform the reset.
721 * Assumes any error from lpfc_selective_reset() will be negative.
722 * If lpfc_selective_reset() returns zero then the length of the buffer
723 * is returned which indicates success
726 * -EINVAL if the buffer does not contain the string "selective"
727 * length of buf if lpfc-selective_reset() if the call succeeds
728 * return value of lpfc_selective_reset() if the call fails
731 lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
732 const char *buf, size_t count)
734 struct Scsi_Host *shost = class_to_shost(dev);
735 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
736 struct lpfc_hba *phba = vport->phba;
738 int status = -EINVAL;
740 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
741 status = lpfc_selective_reset(phba);
750 * lpfc_nport_evt_cnt_show - Return the number of nport events
751 * @dev: class device that is converted into a Scsi_host.
752 * @attr: device attribute, not used.
753 * @buf: on return contains the ascii number of nport events.
755 * Returns: size of formatted string.
758 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
761 struct Scsi_Host *shost = class_to_shost(dev);
762 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
763 struct lpfc_hba *phba = vport->phba;
765 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
769 * lpfc_board_mode_show - Return the state of the board
770 * @dev: class device that is converted into a Scsi_host.
771 * @attr: device attribute, not used.
772 * @buf: on return contains the state of the adapter.
774 * Returns: size of formatted string.
777 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
780 struct Scsi_Host *shost = class_to_shost(dev);
781 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
782 struct lpfc_hba *phba = vport->phba;
785 if (phba->link_state == LPFC_HBA_ERROR)
787 else if (phba->link_state == LPFC_WARM_START)
788 state = "warm start";
789 else if (phba->link_state == LPFC_INIT_START)
794 return snprintf(buf, PAGE_SIZE, "%s\n", state);
798 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
799 * @dev: class device that is converted into a Scsi_host.
800 * @attr: device attribute, not used.
801 * @buf: containing one of the strings "online", "offline", "warm" or "error".
802 * @count: unused variable.
805 * -EACCES if enable hba reset not enabled
806 * -EINVAL if the buffer does not contain a valid string (see above)
807 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
808 * buf length greater than zero indicates success
811 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
812 const char *buf, size_t count)
814 struct Scsi_Host *shost = class_to_shost(dev);
815 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
816 struct lpfc_hba *phba = vport->phba;
817 struct completion online_compl;
820 if (!phba->cfg_enable_hba_reset)
822 init_completion(&online_compl);
824 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
825 lpfc_workq_post_event(phba, &status, &online_compl,
827 wait_for_completion(&online_compl);
828 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
829 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
830 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
831 if (phba->sli_rev == LPFC_SLI_REV4)
834 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
835 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
836 if (phba->sli_rev == LPFC_SLI_REV4)
839 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
850 * lpfc_get_hba_info - Return various bits of informaton about the adapter
851 * @phba: pointer to the adapter structure.
852 * @mxri: max xri count.
853 * @axri: available xri count.
854 * @mrpi: max rpi count.
855 * @arpi: available rpi count.
856 * @mvpi: max vpi count.
857 * @avpi: available vpi count.
860 * If an integer pointer for an count is not null then the value for the
868 lpfc_get_hba_info(struct lpfc_hba *phba,
869 uint32_t *mxri, uint32_t *axri,
870 uint32_t *mrpi, uint32_t *arpi,
871 uint32_t *mvpi, uint32_t *avpi)
873 struct lpfc_mbx_read_config *rd_config;
874 LPFC_MBOXQ_t *pmboxq;
880 * prevent udev from issuing mailbox commands until the port is
883 if (phba->link_state < LPFC_LINK_DOWN ||
884 !phba->mbox_mem_pool ||
885 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
888 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
891 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
894 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
897 pmb->mbxCommand = MBX_READ_CONFIG;
898 pmb->mbxOwner = OWN_HOST;
899 pmboxq->context1 = NULL;
901 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
902 rc = MBX_NOT_FINISHED;
904 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
906 if (rc != MBX_SUCCESS) {
907 if (rc != MBX_TIMEOUT)
908 mempool_free(pmboxq, phba->mbox_mem_pool);
912 if (phba->sli_rev == LPFC_SLI_REV4) {
913 rd_config = &pmboxq->u.mqe.un.rd_config;
915 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
917 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
918 phba->sli4_hba.max_cfg_param.rpi_used;
920 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
922 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
923 phba->sli4_hba.max_cfg_param.xri_used;
925 /* Account for differences with SLI-3. Get vpi count from
926 * mailbox data and subtract one for max vpi value.
928 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
929 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
934 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
937 *mrpi = pmb->un.varRdConfig.max_rpi;
939 *arpi = pmb->un.varRdConfig.avail_rpi;
941 *mxri = pmb->un.varRdConfig.max_xri;
943 *axri = pmb->un.varRdConfig.avail_xri;
945 *mvpi = pmb->un.varRdConfig.max_vpi;
947 *avpi = pmb->un.varRdConfig.avail_vpi;
950 mempool_free(pmboxq, phba->mbox_mem_pool);
955 * lpfc_max_rpi_show - Return maximum rpi
956 * @dev: class device that is converted into a Scsi_host.
957 * @attr: device attribute, not used.
958 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
961 * Calls lpfc_get_hba_info() asking for just the mrpi count.
962 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
963 * to "Unknown" and the buffer length is returned, therefore the caller
964 * must check for "Unknown" in the buffer to detect a failure.
966 * Returns: size of formatted string.
969 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
972 struct Scsi_Host *shost = class_to_shost(dev);
973 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
974 struct lpfc_hba *phba = vport->phba;
977 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
978 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
979 return snprintf(buf, PAGE_SIZE, "Unknown\n");
983 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
984 * @dev: class device that is converted into a Scsi_host.
985 * @attr: device attribute, not used.
986 * @buf: containing the used rpi count in decimal or "Unknown".
989 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
990 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
991 * to "Unknown" and the buffer length is returned, therefore the caller
992 * must check for "Unknown" in the buffer to detect a failure.
994 * Returns: size of formatted string.
997 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
1000 struct Scsi_Host *shost = class_to_shost(dev);
1001 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1002 struct lpfc_hba *phba = vport->phba;
1005 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1006 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1007 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1011 * lpfc_max_xri_show - Return maximum xri
1012 * @dev: class device that is converted into a Scsi_host.
1013 * @attr: device attribute, not used.
1014 * @buf: on return contains the maximum xri count in decimal or "Unknown".
1017 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1018 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1019 * to "Unknown" and the buffer length is returned, therefore the caller
1020 * must check for "Unknown" in the buffer to detect a failure.
1022 * Returns: size of formatted string.
1025 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
1028 struct Scsi_Host *shost = class_to_shost(dev);
1029 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1030 struct lpfc_hba *phba = vport->phba;
1033 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1034 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1035 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1039 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1040 * @dev: class device that is converted into a Scsi_host.
1041 * @attr: device attribute, not used.
1042 * @buf: on return contains the used xri count in decimal or "Unknown".
1045 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
1046 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1047 * to "Unknown" and the buffer length is returned, therefore the caller
1048 * must check for "Unknown" in the buffer to detect a failure.
1050 * Returns: size of formatted string.
1053 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
1056 struct Scsi_Host *shost = class_to_shost(dev);
1057 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1058 struct lpfc_hba *phba = vport->phba;
1061 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
1062 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1063 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1067 * lpfc_max_vpi_show - Return maximum vpi
1068 * @dev: class device that is converted into a Scsi_host.
1069 * @attr: device attribute, not used.
1070 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
1073 * Calls lpfc_get_hba_info() asking for just the mvpi count.
1074 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1075 * to "Unknown" and the buffer length is returned, therefore the caller
1076 * must check for "Unknown" in the buffer to detect a failure.
1078 * Returns: size of formatted string.
1081 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
1084 struct Scsi_Host *shost = class_to_shost(dev);
1085 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1086 struct lpfc_hba *phba = vport->phba;
1089 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
1090 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1091 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1095 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1096 * @dev: class device that is converted into a Scsi_host.
1097 * @attr: device attribute, not used.
1098 * @buf: on return contains the used vpi count in decimal or "Unknown".
1101 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
1102 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1103 * to "Unknown" and the buffer length is returned, therefore the caller
1104 * must check for "Unknown" in the buffer to detect a failure.
1106 * Returns: size of formatted string.
1109 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
1112 struct Scsi_Host *shost = class_to_shost(dev);
1113 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1114 struct lpfc_hba *phba = vport->phba;
1117 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
1118 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1119 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1123 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1124 * @dev: class device that is converted into a Scsi_host.
1125 * @attr: device attribute, not used.
1126 * @buf: text that must be interpreted to determine if npiv is supported.
1129 * Buffer will contain text indicating npiv is not suppoerted on the port,
1130 * the port is an NPIV physical port, or it is an npiv virtual port with
1131 * the id of the vport.
1133 * Returns: size of formatted string.
1136 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
1139 struct Scsi_Host *shost = class_to_shost(dev);
1140 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1141 struct lpfc_hba *phba = vport->phba;
1143 if (!(phba->max_vpi))
1144 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
1145 if (vport->port_type == LPFC_PHYSICAL_PORT)
1146 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
1147 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
1151 * lpfc_poll_show - Return text about poll support for the adapter
1152 * @dev: class device that is converted into a Scsi_host.
1153 * @attr: device attribute, not used.
1154 * @buf: on return contains the cfg_poll in hex.
1157 * cfg_poll should be a lpfc_polling_flags type.
1159 * Returns: size of formatted string.
1162 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
1165 struct Scsi_Host *shost = class_to_shost(dev);
1166 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1167 struct lpfc_hba *phba = vport->phba;
1169 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
1173 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1174 * @dev: class device that is converted into a Scsi_host.
1175 * @attr: device attribute, not used.
1176 * @buf: one or more lpfc_polling_flags values.
1180 * buf contents converted to integer and checked for a valid value.
1183 * -EINVAL if the buffer connot be converted or is out of range
1184 * length of the buf on success
1187 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
1188 const char *buf, size_t count)
1190 struct Scsi_Host *shost = class_to_shost(dev);
1191 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1192 struct lpfc_hba *phba = vport->phba;
1197 if (!isdigit(buf[0]))
1200 if (sscanf(buf, "%i", &val) != 1)
1203 if ((val & 0x3) != val)
1206 if (phba->sli_rev == LPFC_SLI_REV4)
1209 spin_lock_irq(&phba->hbalock);
1211 old_val = phba->cfg_poll;
1213 if (val & ENABLE_FCP_RING_POLLING) {
1214 if ((val & DISABLE_FCP_RING_INT) &&
1215 !(old_val & DISABLE_FCP_RING_INT)) {
1216 creg_val = readl(phba->HCregaddr);
1217 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
1218 writel(creg_val, phba->HCregaddr);
1219 readl(phba->HCregaddr); /* flush */
1221 lpfc_poll_start_timer(phba);
1223 } else if (val != 0x0) {
1224 spin_unlock_irq(&phba->hbalock);
1228 if (!(val & DISABLE_FCP_RING_INT) &&
1229 (old_val & DISABLE_FCP_RING_INT))
1231 spin_unlock_irq(&phba->hbalock);
1232 del_timer(&phba->fcp_poll_timer);
1233 spin_lock_irq(&phba->hbalock);
1234 creg_val = readl(phba->HCregaddr);
1235 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1236 writel(creg_val, phba->HCregaddr);
1237 readl(phba->HCregaddr); /* flush */
1240 phba->cfg_poll = val;
1242 spin_unlock_irq(&phba->hbalock);
1248 * lpfc_fips_level_show - Return the current FIPS level for the HBA
1249 * @dev: class unused variable.
1250 * @attr: device attribute, not used.
1251 * @buf: on return contains the module description text.
1253 * Returns: size of formatted string.
1256 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr,
1259 struct Scsi_Host *shost = class_to_shost(dev);
1260 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1261 struct lpfc_hba *phba = vport->phba;
1263 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
1267 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
1268 * @dev: class unused variable.
1269 * @attr: device attribute, not used.
1270 * @buf: on return contains the module description text.
1272 * Returns: size of formatted string.
1275 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr,
1278 struct Scsi_Host *shost = class_to_shost(dev);
1279 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1280 struct lpfc_hba *phba = vport->phba;
1282 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
1286 * lpfc_param_show - Return a cfg attribute value in decimal
1289 * Macro that given an attr e.g. hba_queue_depth expands
1290 * into a function with the name lpfc_hba_queue_depth_show.
1292 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1293 * @dev: class device that is converted into a Scsi_host.
1294 * @attr: device attribute, not used.
1295 * @buf: on return contains the attribute value in decimal.
1297 * Returns: size of formatted string.
1299 #define lpfc_param_show(attr) \
1301 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1304 struct Scsi_Host *shost = class_to_shost(dev);\
1305 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1306 struct lpfc_hba *phba = vport->phba;\
1308 val = phba->cfg_##attr;\
1309 return snprintf(buf, PAGE_SIZE, "%d\n",\
1314 * lpfc_param_hex_show - Return a cfg attribute value in hex
1317 * Macro that given an attr e.g. hba_queue_depth expands
1318 * into a function with the name lpfc_hba_queue_depth_show
1320 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1321 * @dev: class device that is converted into a Scsi_host.
1322 * @attr: device attribute, not used.
1323 * @buf: on return contains the attribute value in hexadecimal.
1325 * Returns: size of formatted string.
1327 #define lpfc_param_hex_show(attr) \
1329 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1332 struct Scsi_Host *shost = class_to_shost(dev);\
1333 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1334 struct lpfc_hba *phba = vport->phba;\
1336 val = phba->cfg_##attr;\
1337 return snprintf(buf, PAGE_SIZE, "%#x\n",\
1342 * lpfc_param_init - Intializes a cfg attribute
1345 * Macro that given an attr e.g. hba_queue_depth expands
1346 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1347 * takes a default argument, a minimum and maximum argument.
1349 * lpfc_##attr##_init: Initializes an attribute.
1350 * @phba: pointer the the adapter structure.
1351 * @val: integer attribute value.
1353 * Validates the min and max values then sets the adapter config field
1354 * accordingly, or uses the default if out of range and prints an error message.
1358 * -EINVAL if default used
1360 #define lpfc_param_init(attr, default, minval, maxval) \
1362 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1364 if (val >= minval && val <= maxval) {\
1365 phba->cfg_##attr = val;\
1368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1369 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
1370 "allowed range is ["#minval", "#maxval"]\n", val); \
1371 phba->cfg_##attr = default;\
1376 * lpfc_param_set - Set a cfg attribute value
1379 * Macro that given an attr e.g. hba_queue_depth expands
1380 * into a function with the name lpfc_hba_queue_depth_set
1382 * lpfc_##attr##_set: Sets an attribute value.
1383 * @phba: pointer the the adapter structure.
1384 * @val: integer attribute value.
1387 * Validates the min and max values then sets the
1388 * adapter config field if in the valid range. prints error message
1389 * and does not set the parameter if invalid.
1393 * -EINVAL if val is invalid
1395 #define lpfc_param_set(attr, default, minval, maxval) \
1397 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1399 if (val >= minval && val <= maxval) {\
1400 phba->cfg_##attr = val;\
1403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1404 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
1405 "allowed range is ["#minval", "#maxval"]\n", val); \
1410 * lpfc_param_store - Set a vport attribute value
1413 * Macro that given an attr e.g. hba_queue_depth expands
1414 * into a function with the name lpfc_hba_queue_depth_store.
1416 * lpfc_##attr##_store: Set an sttribute value.
1417 * @dev: class device that is converted into a Scsi_host.
1418 * @attr: device attribute, not used.
1419 * @buf: contains the attribute value in ascii.
1423 * Convert the ascii text number to an integer, then
1424 * use the lpfc_##attr##_set function to set the value.
1427 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1428 * length of buffer upon success.
1430 #define lpfc_param_store(attr) \
1432 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1433 const char *buf, size_t count) \
1435 struct Scsi_Host *shost = class_to_shost(dev);\
1436 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1437 struct lpfc_hba *phba = vport->phba;\
1439 if (!isdigit(buf[0]))\
1441 if (sscanf(buf, "%i", &val) != 1)\
1443 if (lpfc_##attr##_set(phba, val) == 0) \
1444 return strlen(buf);\
1450 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1453 * Macro that given an attr e.g. hba_queue_depth expands
1454 * into a function with the name lpfc_hba_queue_depth_show
1456 * lpfc_##attr##_show: prints the attribute value in decimal.
1457 * @dev: class device that is converted into a Scsi_host.
1458 * @attr: device attribute, not used.
1459 * @buf: on return contains the attribute value in decimal.
1461 * Returns: length of formatted string.
1463 #define lpfc_vport_param_show(attr) \
1465 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1468 struct Scsi_Host *shost = class_to_shost(dev);\
1469 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1471 val = vport->cfg_##attr;\
1472 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
1476 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1479 * Macro that given an attr e.g.
1480 * hba_queue_depth expands into a function with the name
1481 * lpfc_hba_queue_depth_show
1483 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1484 * @dev: class device that is converted into a Scsi_host.
1485 * @attr: device attribute, not used.
1486 * @buf: on return contains the attribute value in hexadecimal.
1488 * Returns: length of formatted string.
1490 #define lpfc_vport_param_hex_show(attr) \
1492 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1495 struct Scsi_Host *shost = class_to_shost(dev);\
1496 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1498 val = vport->cfg_##attr;\
1499 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
1503 * lpfc_vport_param_init - Initialize a vport cfg attribute
1506 * Macro that given an attr e.g. hba_queue_depth expands
1507 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1508 * takes a default argument, a minimum and maximum argument.
1510 * lpfc_##attr##_init: validates the min and max values then sets the
1511 * adapter config field accordingly, or uses the default if out of range
1512 * and prints an error message.
1513 * @phba: pointer the the adapter structure.
1514 * @val: integer attribute value.
1518 * -EINVAL if default used
1520 #define lpfc_vport_param_init(attr, default, minval, maxval) \
1522 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1524 if (val >= minval && val <= maxval) {\
1525 vport->cfg_##attr = val;\
1528 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1529 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1530 "allowed range is ["#minval", "#maxval"]\n", val); \
1531 vport->cfg_##attr = default;\
1536 * lpfc_vport_param_set - Set a vport cfg attribute
1539 * Macro that given an attr e.g. hba_queue_depth expands
1540 * into a function with the name lpfc_hba_queue_depth_set
1542 * lpfc_##attr##_set: validates the min and max values then sets the
1543 * adapter config field if in the valid range. prints error message
1544 * and does not set the parameter if invalid.
1545 * @phba: pointer the the adapter structure.
1546 * @val: integer attribute value.
1550 * -EINVAL if val is invalid
1552 #define lpfc_vport_param_set(attr, default, minval, maxval) \
1554 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1556 if (val >= minval && val <= maxval) {\
1557 vport->cfg_##attr = val;\
1560 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1561 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1562 "allowed range is ["#minval", "#maxval"]\n", val); \
1567 * lpfc_vport_param_store - Set a vport attribute
1570 * Macro that given an attr e.g. hba_queue_depth
1571 * expands into a function with the name lpfc_hba_queue_depth_store
1573 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1574 * use the lpfc_##attr##_set function to set the value.
1575 * @cdev: class device that is converted into a Scsi_host.
1576 * @buf: contains the attribute value in decimal.
1580 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1581 * length of buffer upon success.
1583 #define lpfc_vport_param_store(attr) \
1585 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1586 const char *buf, size_t count) \
1588 struct Scsi_Host *shost = class_to_shost(dev);\
1589 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1591 if (!isdigit(buf[0]))\
1593 if (sscanf(buf, "%i", &val) != 1)\
1595 if (lpfc_##attr##_set(vport, val) == 0) \
1596 return strlen(buf);\
1602 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
1603 static uint lpfc_##name = defval;\
1604 module_param(lpfc_##name, uint, 0);\
1605 MODULE_PARM_DESC(lpfc_##name, desc);\
1606 lpfc_param_init(name, defval, minval, maxval)
1608 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
1609 static uint lpfc_##name = defval;\
1610 module_param(lpfc_##name, uint, 0);\
1611 MODULE_PARM_DESC(lpfc_##name, desc);\
1612 lpfc_param_show(name)\
1613 lpfc_param_init(name, defval, minval, maxval)\
1614 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1616 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
1617 static uint lpfc_##name = defval;\
1618 module_param(lpfc_##name, uint, 0);\
1619 MODULE_PARM_DESC(lpfc_##name, desc);\
1620 lpfc_param_show(name)\
1621 lpfc_param_init(name, defval, minval, maxval)\
1622 lpfc_param_set(name, defval, minval, maxval)\
1623 lpfc_param_store(name)\
1624 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1625 lpfc_##name##_show, lpfc_##name##_store)
1627 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1628 static uint lpfc_##name = defval;\
1629 module_param(lpfc_##name, uint, 0);\
1630 MODULE_PARM_DESC(lpfc_##name, desc);\
1631 lpfc_param_hex_show(name)\
1632 lpfc_param_init(name, defval, minval, maxval)\
1633 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1635 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1636 static uint lpfc_##name = defval;\
1637 module_param(lpfc_##name, uint, 0);\
1638 MODULE_PARM_DESC(lpfc_##name, desc);\
1639 lpfc_param_hex_show(name)\
1640 lpfc_param_init(name, defval, minval, maxval)\
1641 lpfc_param_set(name, defval, minval, maxval)\
1642 lpfc_param_store(name)\
1643 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1644 lpfc_##name##_show, lpfc_##name##_store)
1646 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
1647 static uint lpfc_##name = defval;\
1648 module_param(lpfc_##name, uint, 0);\
1649 MODULE_PARM_DESC(lpfc_##name, desc);\
1650 lpfc_vport_param_init(name, defval, minval, maxval)
1652 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
1653 static uint lpfc_##name = defval;\
1654 module_param(lpfc_##name, uint, 0);\
1655 MODULE_PARM_DESC(lpfc_##name, desc);\
1656 lpfc_vport_param_show(name)\
1657 lpfc_vport_param_init(name, defval, minval, maxval)\
1658 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1660 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
1661 static uint lpfc_##name = defval;\
1662 module_param(lpfc_##name, uint, 0);\
1663 MODULE_PARM_DESC(lpfc_##name, desc);\
1664 lpfc_vport_param_show(name)\
1665 lpfc_vport_param_init(name, defval, minval, maxval)\
1666 lpfc_vport_param_set(name, defval, minval, maxval)\
1667 lpfc_vport_param_store(name)\
1668 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1669 lpfc_##name##_show, lpfc_##name##_store)
1671 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1672 static uint lpfc_##name = defval;\
1673 module_param(lpfc_##name, uint, 0);\
1674 MODULE_PARM_DESC(lpfc_##name, desc);\
1675 lpfc_vport_param_hex_show(name)\
1676 lpfc_vport_param_init(name, defval, minval, maxval)\
1677 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1679 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1680 static uint lpfc_##name = defval;\
1681 module_param(lpfc_##name, uint, 0);\
1682 MODULE_PARM_DESC(lpfc_##name, desc);\
1683 lpfc_vport_param_hex_show(name)\
1684 lpfc_vport_param_init(name, defval, minval, maxval)\
1685 lpfc_vport_param_set(name, defval, minval, maxval)\
1686 lpfc_vport_param_store(name)\
1687 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1688 lpfc_##name##_show, lpfc_##name##_store)
1690 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
1691 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
1692 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
1693 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
1694 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
1695 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
1696 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
1697 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
1698 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
1699 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
1700 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
1701 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
1702 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
1703 lpfc_link_state_store);
1704 static DEVICE_ATTR(option_rom_version, S_IRUGO,
1705 lpfc_option_rom_version_show, NULL);
1706 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
1707 lpfc_num_discovered_ports_show, NULL);
1708 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
1709 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
1710 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
1711 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
1712 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
1713 lpfc_board_mode_show, lpfc_board_mode_store);
1714 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
1715 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
1716 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
1717 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
1718 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
1719 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
1720 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
1721 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
1722 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
1723 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
1724 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
1727 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
1730 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
1731 * @dev: class device that is converted into a Scsi_host.
1732 * @attr: device attribute, not used.
1733 * @buf: containing the string lpfc_soft_wwn_key.
1734 * @count: must be size of lpfc_soft_wwn_key.
1737 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
1738 * length of buf indicates success
1741 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
1742 const char *buf, size_t count)
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;
1747 unsigned int cnt = count;
1750 * We're doing a simple sanity check for soft_wwpn setting.
1751 * We require that the user write a specific key to enable
1752 * the soft_wwpn attribute to be settable. Once the attribute
1753 * is written, the enable key resets. If further updates are
1754 * desired, the key must be written again to re-enable the
1757 * The "key" is not secret - it is a hardcoded string shown
1758 * here. The intent is to protect against the random user or
1759 * application that is just writing attributes.
1762 /* count may include a LF at end of string */
1763 if (buf[cnt-1] == '\n')
1766 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
1767 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
1770 phba->soft_wwn_enable = 1;
1773 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
1774 lpfc_soft_wwn_enable_store);
1777 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
1778 * @dev: class device that is converted into a Scsi_host.
1779 * @attr: device attribute, not used.
1780 * @buf: on return contains the wwpn in hexadecimal.
1782 * Returns: size of formatted string.
1785 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
1788 struct Scsi_Host *shost = class_to_shost(dev);
1789 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1790 struct lpfc_hba *phba = vport->phba;
1792 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1793 (unsigned long long)phba->cfg_soft_wwpn);
1797 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
1798 * @dev class device that is converted into a Scsi_host.
1799 * @attr: device attribute, not used.
1800 * @buf: contains the wwpn in hexadecimal.
1801 * @count: number of wwpn bytes in buf
1804 * -EACCES hba reset not enabled, adapter over temp
1805 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
1806 * -EIO error taking adapter offline or online
1807 * value of count on success
1810 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
1811 const char *buf, size_t count)
1813 struct Scsi_Host *shost = class_to_shost(dev);
1814 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1815 struct lpfc_hba *phba = vport->phba;
1816 struct completion online_compl;
1817 int stat1=0, stat2=0;
1818 unsigned int i, j, cnt=count;
1821 if (!phba->cfg_enable_hba_reset)
1823 spin_lock_irq(&phba->hbalock);
1824 if (phba->over_temp_state == HBA_OVER_TEMP) {
1825 spin_unlock_irq(&phba->hbalock);
1828 spin_unlock_irq(&phba->hbalock);
1829 /* count may include a LF at end of string */
1830 if (buf[cnt-1] == '\n')
1833 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1834 ((cnt == 17) && (*buf++ != 'x')) ||
1835 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1838 phba->soft_wwn_enable = 0;
1840 memset(wwpn, 0, sizeof(wwpn));
1842 /* Validate and store the new name */
1843 for (i=0, j=0; i < 16; i++) {
1846 value = hex_to_bin(*buf++);
1848 j = (j << 4) | value;
1852 wwpn[i/2] = j & 0xff;
1856 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
1857 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
1858 if (phba->cfg_soft_wwnn)
1859 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
1861 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1862 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
1864 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1867 "0463 lpfc_soft_wwpn attribute set failed to "
1868 "reinit adapter - %d\n", stat1);
1869 init_completion(&online_compl);
1870 lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
1871 wait_for_completion(&online_compl);
1873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1874 "0464 lpfc_soft_wwpn attribute set failed to "
1875 "reinit adapter - %d\n", stat2);
1876 return (stat1 || stat2) ? -EIO : count;
1878 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1879 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1882 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
1883 * @dev: class device that is converted into a Scsi_host.
1884 * @attr: device attribute, not used.
1885 * @buf: on return contains the wwnn in hexadecimal.
1887 * Returns: size of formatted string.
1890 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
1893 struct Scsi_Host *shost = class_to_shost(dev);
1894 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1895 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1896 (unsigned long long)phba->cfg_soft_wwnn);
1900 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
1901 * @cdev: class device that is converted into a Scsi_host.
1902 * @buf: contains the ww node name in hexadecimal.
1903 * @count: number of wwnn bytes in buf.
1906 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
1907 * value of count on success
1910 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
1911 const char *buf, size_t count)
1913 struct Scsi_Host *shost = class_to_shost(dev);
1914 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
1915 unsigned int i, j, cnt=count;
1918 /* count may include a LF at end of string */
1919 if (buf[cnt-1] == '\n')
1922 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
1923 ((cnt == 17) && (*buf++ != 'x')) ||
1924 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
1928 * Allow wwnn to be set many times, as long as the enable is set.
1929 * However, once the wwpn is set, everything locks.
1932 memset(wwnn, 0, sizeof(wwnn));
1934 /* Validate and store the new name */
1935 for (i=0, j=0; i < 16; i++) {
1938 value = hex_to_bin(*buf++);
1940 j = (j << 4) | value;
1944 wwnn[i/2] = j & 0xff;
1948 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
1950 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
1951 "lpfc%d: soft_wwnn set. Value will take effect upon "
1952 "setting of the soft_wwpn\n", phba->brd_no);
1956 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
1957 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
1960 static int lpfc_poll = 0;
1961 module_param(lpfc_poll, int, 0);
1962 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
1964 " 1 - poll with interrupts enabled"
1965 " 3 - poll and disable FCP ring interrupts");
1967 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
1968 lpfc_poll_show, lpfc_poll_store);
1970 int lpfc_sli_mode = 0;
1971 module_param(lpfc_sli_mode, int, 0);
1972 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1973 " 0 - auto (SLI-3 if supported),"
1974 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1975 " 3 - select SLI-3");
1977 int lpfc_enable_npiv = 1;
1978 module_param(lpfc_enable_npiv, int, 0);
1979 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
1980 lpfc_param_show(enable_npiv);
1981 lpfc_param_init(enable_npiv, 1, 0, 1);
1982 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
1985 # lpfc_suppress_link_up: Bring link up at initialization
1986 # 0x0 = bring link up (issue MBX_INIT_LINK)
1987 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
1988 # 0x2 = never bring up link
1989 # Default value is 0.
1991 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
1992 LPFC_DELAY_INIT_LINK_INDEFINITELY,
1993 "Suppress Link Up at initialization");
1995 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
2003 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2005 struct Scsi_Host *shost = class_to_shost(dev);
2006 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2008 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
2011 static DEVICE_ATTR(iocb_hw, S_IRUGO,
2012 lpfc_iocb_hw_show, NULL);
2014 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2016 struct Scsi_Host *shost = class_to_shost(dev);
2017 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2019 return snprintf(buf, PAGE_SIZE, "%d\n",
2020 phba->sli.ring[LPFC_ELS_RING].txq_max);
2023 static DEVICE_ATTR(txq_hw, S_IRUGO,
2024 lpfc_txq_hw_show, NULL);
2026 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
2029 struct Scsi_Host *shost = class_to_shost(dev);
2030 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2032 return snprintf(buf, PAGE_SIZE, "%d\n",
2033 phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
2036 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
2037 lpfc_txcmplq_hw_show, NULL);
2039 int lpfc_iocb_cnt = 2;
2040 module_param(lpfc_iocb_cnt, int, 1);
2041 MODULE_PARM_DESC(lpfc_iocb_cnt,
2042 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
2043 lpfc_param_show(iocb_cnt);
2044 lpfc_param_init(iocb_cnt, 2, 1, 5);
2045 static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO,
2046 lpfc_iocb_cnt_show, NULL);
2049 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
2050 # until the timer expires. Value range is [0,255]. Default value is 30.
2052 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2053 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
2054 module_param(lpfc_nodev_tmo, int, 0);
2055 MODULE_PARM_DESC(lpfc_nodev_tmo,
2056 "Seconds driver will hold I/O waiting "
2057 "for a device to come back");
2060 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2061 * @dev: class converted to a Scsi_host structure.
2062 * @attr: device attribute, not used.
2063 * @buf: on return contains the dev loss timeout in decimal.
2065 * Returns: size of formatted string.
2068 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
2071 struct Scsi_Host *shost = class_to_shost(dev);
2072 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2074 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
2078 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2079 * @vport: lpfc vport structure pointer.
2080 * @val: contains the nodev timeout value.
2083 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
2084 * a kernel error message is printed and zero is returned.
2085 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2086 * Otherwise nodev tmo is set to the default value.
2089 * zero if already set or if val is in range
2090 * -EINVAL val out of range
2093 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
2095 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
2096 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
2097 if (val != LPFC_DEF_DEVLOSS_TMO)
2098 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2099 "0407 Ignoring nodev_tmo module "
2100 "parameter because devloss_tmo is "
2105 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2106 vport->cfg_nodev_tmo = val;
2107 vport->cfg_devloss_tmo = val;
2110 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2111 "0400 lpfc_nodev_tmo attribute cannot be set to"
2112 " %d, allowed range is [%d, %d]\n",
2113 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2114 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2119 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2120 * @vport: lpfc vport structure pointer.
2123 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
2126 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2128 struct Scsi_Host *shost;
2129 struct lpfc_nodelist *ndlp;
2131 shost = lpfc_shost_from_vport(vport);
2132 spin_lock_irq(shost->host_lock);
2133 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2134 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2135 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
2136 spin_unlock_irq(shost->host_lock);
2140 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2141 * @vport: lpfc vport structure pointer.
2142 * @val: contains the tmo value.
2145 * If the devloss tmo is already set or the vport dev loss tmo has changed
2146 * then a kernel error message is printed and zero is returned.
2147 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2148 * Otherwise nodev tmo is set to the default value.
2151 * zero if already set or if val is in range
2152 * -EINVAL val out of range
2155 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2157 if (vport->dev_loss_tmo_changed ||
2158 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2159 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2160 "0401 Ignoring change to nodev_tmo "
2161 "because devloss_tmo is set.\n");
2164 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2165 vport->cfg_nodev_tmo = val;
2166 vport->cfg_devloss_tmo = val;
2168 * For compat: set the fc_host dev loss so new rports
2169 * will get the value.
2171 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2172 lpfc_update_rport_devloss_tmo(vport);
2175 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2176 "0403 lpfc_nodev_tmo attribute cannot be set to"
2177 "%d, allowed range is [%d, %d]\n",
2178 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2182 lpfc_vport_param_store(nodev_tmo)
2184 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
2185 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
2188 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
2189 # disappear until the timer expires. Value range is [0,255]. Default
2192 module_param(lpfc_devloss_tmo, int, 0);
2193 MODULE_PARM_DESC(lpfc_devloss_tmo,
2194 "Seconds driver will hold I/O waiting "
2195 "for a device to come back");
2196 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
2197 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
2198 lpfc_vport_param_show(devloss_tmo)
2201 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
2202 * @vport: lpfc vport structure pointer.
2203 * @val: contains the tmo value.
2206 * If val is in a valid range then set the vport nodev tmo,
2207 * devloss tmo, also set the vport dev loss tmo changed flag.
2208 * Else a kernel error message is printed.
2211 * zero if val is in range
2212 * -EINVAL val out of range
2215 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
2217 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2218 vport->cfg_nodev_tmo = val;
2219 vport->cfg_devloss_tmo = val;
2220 vport->dev_loss_tmo_changed = 1;
2221 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2222 lpfc_update_rport_devloss_tmo(vport);
2226 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2227 "0404 lpfc_devloss_tmo attribute cannot be set to"
2228 " %d, allowed range is [%d, %d]\n",
2229 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2233 lpfc_vport_param_store(devloss_tmo)
2234 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
2235 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
2238 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
2239 # deluged with LOTS of information.
2240 # You can set a bit mask to record specific types of verbose messages:
2241 # See lpfc_logmsh.h for definitions.
2243 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
2244 "Verbose logging bit-mask");
2247 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
2248 # objects that have been registered with the nameserver after login.
2250 LPFC_VPORT_ATTR_R(enable_da_id, 0, 0, 1,
2251 "Deregister nameserver objects before LOGO");
2254 # lun_queue_depth: This parameter is used to limit the number of outstanding
2255 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
2257 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
2258 "Max number of FCP commands we can queue to a specific LUN");
2261 # tgt_queue_depth: This parameter is used to limit the number of outstanding
2262 # commands per target port. Value range is [10,65535]. Default value is 65535.
2264 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
2265 "Max number of FCP commands we can queue to a specific target port");
2268 # hba_queue_depth: This parameter is used to limit the number of outstanding
2269 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
2270 # value is greater than the maximum number of exchanges supported by the HBA,
2271 # then maximum number of exchanges supported by the HBA is used to determine
2272 # the hba_queue_depth.
2274 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
2275 "Max number of FCP commands we can queue to a lpfc HBA");
2278 # peer_port_login: This parameter allows/prevents logins
2279 # between peer ports hosted on the same physical port.
2280 # When this parameter is set 0 peer ports of same physical port
2281 # are not allowed to login to each other.
2282 # When this parameter is set 1 peer ports of same physical port
2283 # are allowed to login to each other.
2284 # Default value of this parameter is 0.
2286 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
2287 "Allow peer ports on the same physical port to login to each "
2291 # restrict_login: This parameter allows/prevents logins
2292 # between Virtual Ports and remote initiators.
2293 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
2294 # other initiators and will attempt to PLOGI all remote ports.
2295 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
2296 # remote ports and will not attempt to PLOGI to other initiators.
2297 # This parameter does not restrict to the physical port.
2298 # This parameter does not restrict logins to Fabric resident remote ports.
2299 # Default value of this parameter is 1.
2301 static int lpfc_restrict_login = 1;
2302 module_param(lpfc_restrict_login, int, 0);
2303 MODULE_PARM_DESC(lpfc_restrict_login,
2304 "Restrict virtual ports login to remote initiators.");
2305 lpfc_vport_param_show(restrict_login);
2308 * lpfc_restrict_login_init - Set the vport restrict login flag
2309 * @vport: lpfc vport structure pointer.
2310 * @val: contains the restrict login value.
2313 * If val is not in a valid range then log a kernel error message and set
2314 * the vport restrict login to one.
2315 * If the port type is physical clear the restrict login flag and return.
2316 * Else set the restrict login flag to val.
2319 * zero if val is in range
2320 * -EINVAL val out of range
2323 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
2325 if (val < 0 || val > 1) {
2326 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2327 "0422 lpfc_restrict_login attribute cannot "
2328 "be set to %d, allowed range is [0, 1]\n",
2330 vport->cfg_restrict_login = 1;
2333 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2334 vport->cfg_restrict_login = 0;
2337 vport->cfg_restrict_login = val;
2342 * lpfc_restrict_login_set - Set the vport restrict login flag
2343 * @vport: lpfc vport structure pointer.
2344 * @val: contains the restrict login value.
2347 * If val is not in a valid range then log a kernel error message and set
2348 * the vport restrict login to one.
2349 * If the port type is physical and the val is not zero log a kernel
2350 * error message, clear the restrict login flag and return zero.
2351 * Else set the restrict login flag to val.
2354 * zero if val is in range
2355 * -EINVAL val out of range
2358 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
2360 if (val < 0 || val > 1) {
2361 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2362 "0425 lpfc_restrict_login attribute cannot "
2363 "be set to %d, allowed range is [0, 1]\n",
2365 vport->cfg_restrict_login = 1;
2368 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
2369 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2370 "0468 lpfc_restrict_login must be 0 for "
2371 "Physical ports.\n");
2372 vport->cfg_restrict_login = 0;
2375 vport->cfg_restrict_login = val;
2378 lpfc_vport_param_store(restrict_login);
2379 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
2380 lpfc_restrict_login_show, lpfc_restrict_login_store);
2383 # Some disk devices have a "select ID" or "select Target" capability.
2384 # From a protocol standpoint "select ID" usually means select the
2385 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
2386 # annex" which contains a table that maps a "select ID" (a number
2387 # between 0 and 7F) to an ALPA. By default, for compatibility with
2388 # older drivers, the lpfc driver scans this table from low ALPA to high
2391 # Turning on the scan-down variable (on = 1, off = 0) will
2392 # cause the lpfc driver to use an inverted table, effectively
2393 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
2395 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
2396 # and will not work across a fabric. Also this parameter will take
2397 # effect only in the case when ALPA map is not available.)
2399 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
2400 "Start scanning for devices from highest ALPA to lowest");
2403 # lpfc_topology: link topology for init link
2404 # 0x0 = attempt loop mode then point-to-point
2405 # 0x01 = internal loopback mode
2406 # 0x02 = attempt point-to-point mode only
2407 # 0x04 = attempt loop mode only
2408 # 0x06 = attempt point-to-point mode then loop
2409 # Set point-to-point mode if you want to run as an N_Port.
2410 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
2411 # Default value is 0.
2415 * lpfc_topology_set - Set the adapters topology field
2416 * @phba: lpfc_hba pointer.
2417 * @val: topology value.
2420 * If val is in a valid range then set the adapter's topology field and
2421 * issue a lip; if the lip fails reset the topology to the old value.
2423 * If the value is not in range log a kernel error message and return an error.
2426 * zero if val is in range and lip okay
2427 * non-zero return value from lpfc_issue_lip()
2428 * -EINVAL val out of range
2431 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
2432 const char *buf, size_t count)
2434 struct Scsi_Host *shost = class_to_shost(dev);
2435 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2436 struct lpfc_hba *phba = vport->phba;
2439 const char *val_buf = buf;
2443 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
2445 val_buf = &buf[strlen("nolip ")];
2448 if (!isdigit(val_buf[0]))
2450 if (sscanf(val_buf, "%i", &val) != 1)
2453 if (val >= 0 && val <= 6) {
2454 prev_val = phba->cfg_topology;
2455 phba->cfg_topology = val;
2459 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2461 phba->cfg_topology = prev_val;
2466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2467 "%d:0467 lpfc_topology attribute cannot be set to %d, "
2468 "allowed range is [0, 6]\n",
2472 static int lpfc_topology = 0;
2473 module_param(lpfc_topology, int, 0);
2474 MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
2475 lpfc_param_show(topology)
2476 lpfc_param_init(topology, 0, 0, 6)
2477 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
2478 lpfc_topology_show, lpfc_topology_store);
2481 * lpfc_static_vport_show: Read callback function for
2482 * lpfc_static_vport sysfs file.
2483 * @dev: Pointer to class device object.
2484 * @attr: device attribute structure.
2485 * @buf: Data buffer.
2487 * This function is the read call back function for
2488 * lpfc_static_vport sysfs file. The lpfc_static_vport
2489 * sysfs file report the mageability of the vport.
2492 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
2495 struct Scsi_Host *shost = class_to_shost(dev);
2496 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2497 if (vport->vport_flag & STATIC_VPORT)
2498 sprintf(buf, "1\n");
2500 sprintf(buf, "0\n");
2506 * Sysfs attribute to control the statistical data collection.
2508 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
2509 lpfc_static_vport_show, NULL);
2512 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
2513 * @dev: Pointer to class device.
2514 * @buf: Data buffer.
2515 * @count: Size of the data buffer.
2517 * This function get called when an user write to the lpfc_stat_data_ctrl
2518 * sysfs file. This function parse the command written to the sysfs file
2519 * and take appropriate action. These commands are used for controlling
2520 * driver statistical data collection.
2521 * Following are the command this function handles.
2523 * setbucket <bucket_type> <base> <step>
2524 * = Set the latency buckets.
2525 * destroybucket = destroy all the buckets.
2526 * start = start data collection
2527 * stop = stop data collection
2528 * reset = reset the collected data
2531 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
2532 const char *buf, size_t count)
2534 struct Scsi_Host *shost = class_to_shost(dev);
2535 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2536 struct lpfc_hba *phba = vport->phba;
2537 #define LPFC_MAX_DATA_CTRL_LEN 1024
2538 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
2540 char *str_ptr, *token;
2541 struct lpfc_vport **vports;
2542 struct Scsi_Host *v_shost;
2543 char *bucket_type_str, *base_str, *step_str;
2544 unsigned long base, step, bucket_type;
2546 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
2547 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
2550 strcpy(bucket_data, buf);
2551 str_ptr = &bucket_data[0];
2552 /* Ignore this token - this is command token */
2553 token = strsep(&str_ptr, "\t ");
2557 bucket_type_str = strsep(&str_ptr, "\t ");
2558 if (!bucket_type_str)
2561 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
2562 bucket_type = LPFC_LINEAR_BUCKET;
2563 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
2564 bucket_type = LPFC_POWER2_BUCKET;
2568 base_str = strsep(&str_ptr, "\t ");
2571 base = simple_strtoul(base_str, NULL, 0);
2573 step_str = strsep(&str_ptr, "\t ");
2576 step = simple_strtoul(step_str, NULL, 0);
2580 /* Block the data collection for every vport */
2581 vports = lpfc_create_vport_work_array(phba);
2585 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2586 v_shost = lpfc_shost_from_vport(vports[i]);
2587 spin_lock_irq(v_shost->host_lock);
2588 /* Block and reset data collection */
2589 vports[i]->stat_data_blocked = 1;
2590 if (vports[i]->stat_data_enabled)
2591 lpfc_vport_reset_stat_data(vports[i]);
2592 spin_unlock_irq(v_shost->host_lock);
2595 /* Set the bucket attributes */
2596 phba->bucket_type = bucket_type;
2597 phba->bucket_base = base;
2598 phba->bucket_step = step;
2600 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2601 v_shost = lpfc_shost_from_vport(vports[i]);
2603 /* Unblock data collection */
2604 spin_lock_irq(v_shost->host_lock);
2605 vports[i]->stat_data_blocked = 0;
2606 spin_unlock_irq(v_shost->host_lock);
2608 lpfc_destroy_vport_work_array(phba, vports);
2612 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
2613 vports = lpfc_create_vport_work_array(phba);
2617 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2618 v_shost = lpfc_shost_from_vport(vports[i]);
2619 spin_lock_irq(shost->host_lock);
2620 vports[i]->stat_data_blocked = 1;
2621 lpfc_free_bucket(vport);
2622 vport->stat_data_enabled = 0;
2623 vports[i]->stat_data_blocked = 0;
2624 spin_unlock_irq(shost->host_lock);
2626 lpfc_destroy_vport_work_array(phba, vports);
2627 phba->bucket_type = LPFC_NO_BUCKET;
2628 phba->bucket_base = 0;
2629 phba->bucket_step = 0;
2633 if (!strncmp(buf, "start", strlen("start"))) {
2634 /* If no buckets configured return error */
2635 if (phba->bucket_type == LPFC_NO_BUCKET)
2637 spin_lock_irq(shost->host_lock);
2638 if (vport->stat_data_enabled) {
2639 spin_unlock_irq(shost->host_lock);
2642 lpfc_alloc_bucket(vport);
2643 vport->stat_data_enabled = 1;
2644 spin_unlock_irq(shost->host_lock);
2648 if (!strncmp(buf, "stop", strlen("stop"))) {
2649 spin_lock_irq(shost->host_lock);
2650 if (vport->stat_data_enabled == 0) {
2651 spin_unlock_irq(shost->host_lock);
2654 lpfc_free_bucket(vport);
2655 vport->stat_data_enabled = 0;
2656 spin_unlock_irq(shost->host_lock);
2660 if (!strncmp(buf, "reset", strlen("reset"))) {
2661 if ((phba->bucket_type == LPFC_NO_BUCKET)
2662 || !vport->stat_data_enabled)
2664 spin_lock_irq(shost->host_lock);
2665 vport->stat_data_blocked = 1;
2666 lpfc_vport_reset_stat_data(vport);
2667 vport->stat_data_blocked = 0;
2668 spin_unlock_irq(shost->host_lock);
2676 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
2677 * @dev: Pointer to class device object.
2678 * @buf: Data buffer.
2680 * This function is the read call back function for
2681 * lpfc_stat_data_ctrl sysfs file. This function report the
2682 * current statistical data collection state.
2685 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
2688 struct Scsi_Host *shost = class_to_shost(dev);
2689 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2690 struct lpfc_hba *phba = vport->phba;
2694 unsigned long bucket_value;
2696 switch (phba->bucket_type) {
2697 case LPFC_LINEAR_BUCKET:
2698 bucket_type = "linear";
2700 case LPFC_POWER2_BUCKET:
2701 bucket_type = "power2";
2704 bucket_type = "No Bucket";
2708 sprintf(&buf[index], "Statistical Data enabled :%d, "
2709 "blocked :%d, Bucket type :%s, Bucket base :%d,"
2710 " Bucket step :%d\nLatency Ranges :",
2711 vport->stat_data_enabled, vport->stat_data_blocked,
2712 bucket_type, phba->bucket_base, phba->bucket_step);
2713 index = strlen(buf);
2714 if (phba->bucket_type != LPFC_NO_BUCKET) {
2715 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2716 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
2717 bucket_value = phba->bucket_base +
2718 phba->bucket_step * i;
2720 bucket_value = phba->bucket_base +
2721 (1 << i) * phba->bucket_step;
2723 if (index + 10 > PAGE_SIZE)
2725 sprintf(&buf[index], "%08ld ", bucket_value);
2726 index = strlen(buf);
2729 sprintf(&buf[index], "\n");
2734 * Sysfs attribute to control the statistical data collection.
2736 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
2737 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
2740 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
2744 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
2747 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
2748 #define MAX_STAT_DATA_SIZE_PER_TARGET \
2749 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
2753 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
2755 * @kobj: Pointer to the kernel object
2756 * @bin_attr: Attribute object
2757 * @buff: Buffer pointer
2759 * @count: Buffer size
2761 * This function is the read call back function for lpfc_drvr_stat_data
2762 * sysfs file. This function export the statistical data to user
2766 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
2767 struct bin_attribute *bin_attr,
2768 char *buf, loff_t off, size_t count)
2770 struct device *dev = container_of(kobj, struct device,
2772 struct Scsi_Host *shost = class_to_shost(dev);
2773 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2774 struct lpfc_hba *phba = vport->phba;
2775 int i = 0, index = 0;
2776 unsigned long nport_index;
2777 struct lpfc_nodelist *ndlp = NULL;
2778 nport_index = (unsigned long)off /
2779 MAX_STAT_DATA_SIZE_PER_TARGET;
2781 if (!vport->stat_data_enabled || vport->stat_data_blocked
2782 || (phba->bucket_type == LPFC_NO_BUCKET))
2785 spin_lock_irq(shost->host_lock);
2786 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2787 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
2790 if (nport_index > 0) {
2795 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
2799 if (!ndlp->lat_data)
2803 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
2804 ndlp->nlp_portname.u.wwn[0],
2805 ndlp->nlp_portname.u.wwn[1],
2806 ndlp->nlp_portname.u.wwn[2],
2807 ndlp->nlp_portname.u.wwn[3],
2808 ndlp->nlp_portname.u.wwn[4],
2809 ndlp->nlp_portname.u.wwn[5],
2810 ndlp->nlp_portname.u.wwn[6],
2811 ndlp->nlp_portname.u.wwn[7]);
2813 index = strlen(buf);
2815 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2816 sprintf(&buf[index], "%010u,",
2817 ndlp->lat_data[i].cmd_count);
2818 index = strlen(buf);
2820 sprintf(&buf[index], "\n");
2821 index = strlen(buf);
2823 spin_unlock_irq(shost->host_lock);
2827 static struct bin_attribute sysfs_drvr_stat_data_attr = {
2829 .name = "lpfc_drvr_stat_data",
2832 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
2833 .read = sysfs_drvr_stat_data_read,
2838 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
2840 # 0 = auto select (default)
2845 # Value range is [0,8]. Default value is 0.
2849 * lpfc_link_speed_set - Set the adapters link speed
2850 * @phba: lpfc_hba pointer.
2851 * @val: link speed value.
2854 * If val is in a valid range then set the adapter's link speed field and
2855 * issue a lip; if the lip fails reset the link speed to the old value.
2858 * If the value is not in range log a kernel error message and return an error.
2861 * zero if val is in range and lip okay.
2862 * non-zero return value from lpfc_issue_lip()
2863 * -EINVAL val out of range
2866 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
2867 const char *buf, size_t count)
2869 struct Scsi_Host *shost = class_to_shost(dev);
2870 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2871 struct lpfc_hba *phba = vport->phba;
2874 const char *val_buf = buf;
2878 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
2880 val_buf = &buf[strlen("nolip ")];
2883 if (!isdigit(val_buf[0]))
2885 if (sscanf(val_buf, "%i", &val) != 1)
2888 if (((val == LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
2889 ((val == LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
2890 ((val == LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
2891 ((val == LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
2892 ((val == LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)))
2895 if ((val >= 0 && val <= 8)
2896 && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
2897 prev_val = phba->cfg_link_speed;
2898 phba->cfg_link_speed = val;
2902 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2904 phba->cfg_link_speed = prev_val;
2910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2911 "%d:0469 lpfc_link_speed attribute cannot be set to %d, "
2912 "allowed range is [0, 8]\n",
2917 static int lpfc_link_speed = 0;
2918 module_param(lpfc_link_speed, int, 0);
2919 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
2920 lpfc_param_show(link_speed)
2923 * lpfc_link_speed_init - Set the adapters link speed
2924 * @phba: lpfc_hba pointer.
2925 * @val: link speed value.
2928 * If val is in a valid range then set the adapter's link speed field.
2931 * If the value is not in range log a kernel error message, clear the link
2932 * speed and return an error.
2935 * zero if val saved.
2936 * -EINVAL val out of range
2939 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
2941 if ((val >= 0 && val <= LPFC_MAX_LINK_SPEED)
2942 && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
2943 phba->cfg_link_speed = val;
2946 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2947 "0405 lpfc_link_speed attribute cannot "
2948 "be set to %d, allowed values are "
2949 "["LPFC_LINK_SPEED_STRING"]\n", val);
2950 phba->cfg_link_speed = 0;
2954 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
2955 lpfc_link_speed_show, lpfc_link_speed_store);
2958 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
2959 # 0 = aer disabled or not supported
2960 # 1 = aer supported and enabled (default)
2961 # Value range is [0,1]. Default value is 1.
2965 * lpfc_aer_support_store - Set the adapter for aer support
2967 * @dev: class device that is converted into a Scsi_host.
2968 * @attr: device attribute, not used.
2969 * @buf: containing the string "selective".
2970 * @count: unused variable.
2973 * If the val is 1 and currently the device's AER capability was not
2974 * enabled, invoke the kernel's enable AER helper routine, trying to
2975 * enable the device's AER capability. If the helper routine enabling
2976 * AER returns success, update the device's cfg_aer_support flag to
2977 * indicate AER is supported by the device; otherwise, if the device
2978 * AER capability is already enabled to support AER, then do nothing.
2980 * If the val is 0 and currently the device's AER support was enabled,
2981 * invoke the kernel's disable AER helper routine. After that, update
2982 * the device's cfg_aer_support flag to indicate AER is not supported
2983 * by the device; otherwise, if the device AER capability is already
2984 * disabled from supporting AER, then do nothing.
2987 * length of the buf on success if val is in range the intended mode
2989 * -EINVAL if val out of range or intended mode is not supported.
2992 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
2993 const char *buf, size_t count)
2995 struct Scsi_Host *shost = class_to_shost(dev);
2996 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
2997 struct lpfc_hba *phba = vport->phba;
2998 int val = 0, rc = -EINVAL;
3000 if (!isdigit(buf[0]))
3002 if (sscanf(buf, "%i", &val) != 1)
3007 if (phba->hba_flag & HBA_AER_ENABLED) {
3008 rc = pci_disable_pcie_error_reporting(phba->pcidev);
3010 spin_lock_irq(&phba->hbalock);
3011 phba->hba_flag &= ~HBA_AER_ENABLED;
3012 spin_unlock_irq(&phba->hbalock);
3013 phba->cfg_aer_support = 0;
3018 phba->cfg_aer_support = 0;
3023 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
3024 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3026 spin_lock_irq(&phba->hbalock);
3027 phba->hba_flag |= HBA_AER_ENABLED;
3028 spin_unlock_irq(&phba->hbalock);
3029 phba->cfg_aer_support = 1;
3034 phba->cfg_aer_support = 1;
3045 static int lpfc_aer_support = 1;
3046 module_param(lpfc_aer_support, int, 1);
3047 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
3048 lpfc_param_show(aer_support)
3051 * lpfc_aer_support_init - Set the initial adapters aer support flag
3052 * @phba: lpfc_hba pointer.
3053 * @val: link speed value.
3056 * If val is in a valid range [0,1], then set the adapter's initial
3057 * cfg_aer_support field. It will be up to the driver's probe_one
3058 * routine to determine whether the device's AER support can be set
3062 * If the value is not in range log a kernel error message, and
3063 * choose the default value of setting AER support and return.
3066 * zero if val saved.
3067 * -EINVAL val out of range
3070 lpfc_aer_support_init(struct lpfc_hba *phba, int val)
3072 if (val == 0 || val == 1) {
3073 phba->cfg_aer_support = val;
3076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3077 "2712 lpfc_aer_support attribute value %d out "
3078 "of range, allowed values are 0|1, setting it "
3079 "to default value of 1\n", val);
3080 /* By default, try to enable AER on a device */
3081 phba->cfg_aer_support = 1;
3085 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
3086 lpfc_aer_support_show, lpfc_aer_support_store);
3089 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
3090 * @dev: class device that is converted into a Scsi_host.
3091 * @attr: device attribute, not used.
3092 * @buf: containing the string "selective".
3093 * @count: unused variable.
3096 * If the @buf contains 1 and the device currently has the AER support
3097 * enabled, then invokes the kernel AER helper routine
3098 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
3099 * error status register.
3104 * -EINVAL if the buf does not contain the 1 or the device is not currently
3105 * enabled with the AER support.
3108 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
3109 const char *buf, size_t count)
3111 struct Scsi_Host *shost = class_to_shost(dev);
3112 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3113 struct lpfc_hba *phba = vport->phba;
3116 if (!isdigit(buf[0]))
3118 if (sscanf(buf, "%i", &val) != 1)
3123 if (phba->hba_flag & HBA_AER_ENABLED)
3124 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
3132 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
3133 lpfc_aer_cleanup_state);
3136 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
3137 # Value range is [2,3]. Default value is 3.
3139 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
3140 "Select Fibre Channel class of service for FCP sequences");
3143 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
3144 # is [0,1]. Default value is 0.
3146 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
3147 "Use ADISC on rediscovery to authenticate FCP devices");
3150 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
3151 # depth. Default value is 0. When the value of this parameter is zero the
3152 # SCSI command completion time is not used for controlling I/O queue depth. When
3153 # the parameter is set to a non-zero value, the I/O queue depth is controlled
3154 # to limit the I/O completion time to the parameter value.
3155 # The value is set in milliseconds.
3157 static int lpfc_max_scsicmpl_time;
3158 module_param(lpfc_max_scsicmpl_time, int, 0);
3159 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
3160 "Use command completion time to control queue depth");
3161 lpfc_vport_param_show(max_scsicmpl_time);
3162 lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
3164 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
3166 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3167 struct lpfc_nodelist *ndlp, *next_ndlp;
3169 if (val == vport->cfg_max_scsicmpl_time)
3171 if ((val < 0) || (val > 60000))
3173 vport->cfg_max_scsicmpl_time = val;
3175 spin_lock_irq(shost->host_lock);
3176 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
3177 if (!NLP_CHK_NODE_ACT(ndlp))
3179 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3181 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
3183 spin_unlock_irq(shost->host_lock);
3186 lpfc_vport_param_store(max_scsicmpl_time);
3187 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
3188 lpfc_max_scsicmpl_time_show,
3189 lpfc_max_scsicmpl_time_store);
3192 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
3193 # range is [0,1]. Default value is 0.
3195 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
3198 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
3199 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
3200 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
3201 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
3202 # cr_delay is set to 0.
3204 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
3205 "interrupt response is generated");
3207 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
3208 "interrupt response is generated");
3211 # lpfc_multi_ring_support: Determines how many rings to spread available
3212 # cmd/rsp IOCB entries across.
3213 # Value range is [1,2]. Default value is 1.
3215 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
3216 "SLI rings to spread IOCB entries across");
3219 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
3220 # identifies what rctl value to configure the additional ring for.
3221 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
3223 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
3224 255, "Identifies RCTL for additional ring configuration");
3227 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
3228 # identifies what type value to configure the additional ring for.
3229 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
3231 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
3232 255, "Identifies TYPE for additional ring configuration");
3235 # lpfc_fdmi_on: controls FDMI support.
3236 # 0 = no FDMI support
3237 # 1 = support FDMI without attribute of hostname
3238 # 2 = support FDMI with attribute of hostname
3239 # Value range [0,2]. Default value is 0.
3241 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
3244 # Specifies the maximum number of ELS cmds we can have outstanding (for
3245 # discovery). Value range is [1,64]. Default value = 32.
3247 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
3248 "during discovery");
3251 # lpfc_max_luns: maximum allowed LUN.
3252 # Value range is [0,65535]. Default value is 255.
3253 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
3255 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
3258 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
3259 # Value range is [1,255], default value is 10.
3261 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
3262 "Milliseconds driver will wait between polling FCP ring");
3265 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
3266 # support this feature
3269 # 2 = MSI-X enabled (default)
3270 # Value range is [0,2]. Default value is 2.
3272 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
3273 "MSI-X (2), if possible");
3276 # lpfc_fcp_imax: Set the maximum number of fast-path FCP interrupts per second
3278 # Value range is [636,651042]. Default value is 10000.
3280 LPFC_ATTR_R(fcp_imax, LPFC_FP_DEF_IMAX, LPFC_MIM_IMAX, LPFC_DMULT_CONST,
3281 "Set the maximum number of fast-path FCP interrupts per second");
3284 # lpfc_fcp_wq_count: Set the number of fast-path FCP work queues
3286 # Value range is [1,31]. Default value is 4.
3288 LPFC_ATTR_R(fcp_wq_count, LPFC_FP_WQN_DEF, LPFC_FP_WQN_MIN, LPFC_FP_WQN_MAX,
3289 "Set the number of fast-path FCP work queues, if possible");
3292 # lpfc_fcp_eq_count: Set the number of fast-path FCP event queues
3294 # Value range is [1,7]. Default value is 1.
3296 LPFC_ATTR_R(fcp_eq_count, LPFC_FP_EQN_DEF, LPFC_FP_EQN_MIN, LPFC_FP_EQN_MAX,
3297 "Set the number of fast-path FCP event queues, if possible");
3300 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
3301 # 0 = HBA resets disabled
3302 # 1 = HBA resets enabled (default)
3303 # Value range is [0,1]. Default value is 1.
3305 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
3308 # lpfc_enable_hba_heartbeat: Enable HBA heartbeat timer..
3309 # 0 = HBA Heartbeat disabled
3310 # 1 = HBA Heartbeat enabled (default)
3311 # Value range is [0,1]. Default value is 1.
3313 LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat.");
3316 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
3317 # 0 = BlockGuard disabled (default)
3318 # 1 = BlockGuard enabled
3319 # Value range is [0,1]. Default value is 0.
3321 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
3325 # - Bit mask of host protection capabilities used to register with the
3327 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
3328 # - Allows you to ultimately specify which profiles to use
3329 # - Default will result in registering capabilities for all profiles.
3332 unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION;
3334 module_param(lpfc_prot_mask, uint, 0);
3335 MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
3338 # lpfc_prot_guard: i
3339 # - Bit mask of protection guard types to register with the SCSI mid-layer
3340 # - Guard types are currently either 1) IP checksum 2) T10-DIF CRC
3341 # - Allows you to ultimately specify which profiles to use
3342 # - Default will result in registering capabilities for all guard types
3345 unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
3346 module_param(lpfc_prot_guard, byte, 0);
3347 MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
3351 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
3352 * This value can be set to values between 64 and 256. The default value is
3353 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
3354 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
3356 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
3357 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
3359 LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_PROT_SG_SEG_CNT,
3360 LPFC_DEFAULT_PROT_SG_SEG_CNT, LPFC_MAX_PROT_SG_SEG_CNT,
3361 "Max Protection Scatter Gather Segment Count");
3363 struct device_attribute *lpfc_hba_attrs[] = {
3365 &dev_attr_bg_guard_err,
3366 &dev_attr_bg_apptag_err,
3367 &dev_attr_bg_reftag_err,
3369 &dev_attr_serialnum,
3370 &dev_attr_modeldesc,
3371 &dev_attr_modelname,
3372 &dev_attr_programtype,
3376 &dev_attr_option_rom_version,
3377 &dev_attr_link_state,
3378 &dev_attr_num_discovered_ports,
3379 &dev_attr_menlo_mgmt_mode,
3380 &dev_attr_lpfc_drvr_version,
3381 &dev_attr_lpfc_enable_fip,
3382 &dev_attr_lpfc_temp_sensor,
3383 &dev_attr_lpfc_log_verbose,
3384 &dev_attr_lpfc_lun_queue_depth,
3385 &dev_attr_lpfc_tgt_queue_depth,
3386 &dev_attr_lpfc_hba_queue_depth,
3387 &dev_attr_lpfc_peer_port_login,
3388 &dev_attr_lpfc_nodev_tmo,
3389 &dev_attr_lpfc_devloss_tmo,
3390 &dev_attr_lpfc_fcp_class,
3391 &dev_attr_lpfc_use_adisc,
3392 &dev_attr_lpfc_ack0,
3393 &dev_attr_lpfc_topology,
3394 &dev_attr_lpfc_scan_down,
3395 &dev_attr_lpfc_link_speed,
3396 &dev_attr_lpfc_cr_delay,
3397 &dev_attr_lpfc_cr_count,
3398 &dev_attr_lpfc_multi_ring_support,
3399 &dev_attr_lpfc_multi_ring_rctl,
3400 &dev_attr_lpfc_multi_ring_type,
3401 &dev_attr_lpfc_fdmi_on,
3402 &dev_attr_lpfc_max_luns,
3403 &dev_attr_lpfc_enable_npiv,
3404 &dev_attr_nport_evt_cnt,
3405 &dev_attr_board_mode,
3412 &dev_attr_npiv_info,
3413 &dev_attr_issue_reset,
3414 &dev_attr_lpfc_poll,
3415 &dev_attr_lpfc_poll_tmo,
3416 &dev_attr_lpfc_use_msi,
3417 &dev_attr_lpfc_fcp_imax,
3418 &dev_attr_lpfc_fcp_wq_count,
3419 &dev_attr_lpfc_fcp_eq_count,
3420 &dev_attr_lpfc_enable_bg,
3421 &dev_attr_lpfc_soft_wwnn,
3422 &dev_attr_lpfc_soft_wwpn,
3423 &dev_attr_lpfc_soft_wwn_enable,
3424 &dev_attr_lpfc_enable_hba_reset,
3425 &dev_attr_lpfc_enable_hba_heartbeat,
3426 &dev_attr_lpfc_sg_seg_cnt,
3427 &dev_attr_lpfc_max_scsicmpl_time,
3428 &dev_attr_lpfc_stat_data_ctrl,
3429 &dev_attr_lpfc_prot_sg_seg_cnt,
3430 &dev_attr_lpfc_aer_support,
3431 &dev_attr_lpfc_aer_state_cleanup,
3432 &dev_attr_lpfc_suppress_link_up,
3433 &dev_attr_lpfc_iocb_cnt,
3436 &dev_attr_txcmplq_hw,
3437 &dev_attr_lpfc_fips_level,
3438 &dev_attr_lpfc_fips_rev,
3442 struct device_attribute *lpfc_vport_attrs[] = {
3444 &dev_attr_link_state,
3445 &dev_attr_num_discovered_ports,
3446 &dev_attr_lpfc_drvr_version,
3447 &dev_attr_lpfc_log_verbose,
3448 &dev_attr_lpfc_lun_queue_depth,
3449 &dev_attr_lpfc_tgt_queue_depth,
3450 &dev_attr_lpfc_nodev_tmo,
3451 &dev_attr_lpfc_devloss_tmo,
3452 &dev_attr_lpfc_hba_queue_depth,
3453 &dev_attr_lpfc_peer_port_login,
3454 &dev_attr_lpfc_restrict_login,
3455 &dev_attr_lpfc_fcp_class,
3456 &dev_attr_lpfc_use_adisc,
3457 &dev_attr_lpfc_fdmi_on,
3458 &dev_attr_lpfc_max_luns,
3459 &dev_attr_nport_evt_cnt,
3460 &dev_attr_npiv_info,
3461 &dev_attr_lpfc_enable_da_id,
3462 &dev_attr_lpfc_max_scsicmpl_time,
3463 &dev_attr_lpfc_stat_data_ctrl,
3464 &dev_attr_lpfc_static_vport,
3465 &dev_attr_lpfc_fips_level,
3466 &dev_attr_lpfc_fips_rev,
3471 * sysfs_ctlreg_write - Write method for writing to ctlreg
3472 * @filp: open sysfs file
3473 * @kobj: kernel kobject that contains the kernel class device.
3474 * @bin_attr: kernel attributes passed to us.
3475 * @buf: contains the data to be written to the adapter IOREG space.
3476 * @off: offset into buffer to beginning of data.
3477 * @count: bytes to transfer.
3480 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
3481 * Uses the adapter io control registers to send buf contents to the adapter.
3484 * -ERANGE off and count combo out of range
3485 * -EINVAL off, count or buff address invalid
3486 * -EPERM adapter is offline
3487 * value of count, buf contents written
3490 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
3491 struct bin_attribute *bin_attr,
3492 char *buf, loff_t off, size_t count)
3495 struct device *dev = container_of(kobj, struct device, kobj);
3496 struct Scsi_Host *shost = class_to_shost(dev);
3497 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3498 struct lpfc_hba *phba = vport->phba;
3500 if (phba->sli_rev >= LPFC_SLI_REV4)
3503 if ((off + count) > FF_REG_AREA_SIZE)
3506 if (count == 0) return 0;
3508 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3511 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3515 spin_lock_irq(&phba->hbalock);
3516 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
3517 writel(*((uint32_t *)(buf + buf_off)),
3518 phba->ctrl_regs_memmap_p + off + buf_off);
3520 spin_unlock_irq(&phba->hbalock);
3526 * sysfs_ctlreg_read - Read method for reading from ctlreg
3527 * @filp: open sysfs file
3528 * @kobj: kernel kobject that contains the kernel class device.
3529 * @bin_attr: kernel attributes passed to us.
3530 * @buf: if successful contains the data from the adapter IOREG space.
3531 * @off: offset into buffer to beginning of data.
3532 * @count: bytes to transfer.
3535 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
3536 * Uses the adapter io control registers to read data into buf.
3539 * -ERANGE off and count combo out of range
3540 * -EINVAL off, count or buff address invalid
3541 * value of count, buf contents read
3544 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
3545 struct bin_attribute *bin_attr,
3546 char *buf, loff_t off, size_t count)
3550 struct device *dev = container_of(kobj, struct device, kobj);
3551 struct Scsi_Host *shost = class_to_shost(dev);
3552 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3553 struct lpfc_hba *phba = vport->phba;
3555 if (phba->sli_rev >= LPFC_SLI_REV4)
3558 if (off > FF_REG_AREA_SIZE)
3561 if ((off + count) > FF_REG_AREA_SIZE)
3562 count = FF_REG_AREA_SIZE - off;
3564 if (count == 0) return 0;
3566 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3569 spin_lock_irq(&phba->hbalock);
3571 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
3572 tmp_ptr = (uint32_t *)(buf + buf_off);
3573 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
3576 spin_unlock_irq(&phba->hbalock);
3581 static struct bin_attribute sysfs_ctlreg_attr = {
3584 .mode = S_IRUSR | S_IWUSR,
3587 .read = sysfs_ctlreg_read,
3588 .write = sysfs_ctlreg_write,
3592 * sysfs_mbox_idle - frees the sysfs mailbox
3593 * @phba: lpfc_hba pointer
3596 sysfs_mbox_idle(struct lpfc_hba *phba)
3598 phba->sysfs_mbox.state = SMBOX_IDLE;
3599 phba->sysfs_mbox.offset = 0;
3601 if (phba->sysfs_mbox.mbox) {
3602 mempool_free(phba->sysfs_mbox.mbox,
3603 phba->mbox_mem_pool);
3604 phba->sysfs_mbox.mbox = NULL;
3609 * sysfs_mbox_write - Write method for writing information via mbox
3610 * @filp: open sysfs file
3611 * @kobj: kernel kobject that contains the kernel class device.
3612 * @bin_attr: kernel attributes passed to us.
3613 * @buf: contains the data to be written to sysfs mbox.
3614 * @off: offset into buffer to beginning of data.
3615 * @count: bytes to transfer.
3618 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3619 * Uses the sysfs mbox to send buf contents to the adapter.
3622 * -ERANGE off and count combo out of range
3623 * -EINVAL off, count or buff address invalid
3624 * zero if count is zero
3625 * -EPERM adapter is offline
3626 * -ENOMEM failed to allocate memory for the mail box
3627 * -EAGAIN offset, state or mbox is NULL
3628 * count number of bytes transferred
3631 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
3632 struct bin_attribute *bin_attr,
3633 char *buf, loff_t off, size_t count)
3635 struct device *dev = container_of(kobj, struct device, kobj);
3636 struct Scsi_Host *shost = class_to_shost(dev);
3637 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3638 struct lpfc_hba *phba = vport->phba;
3639 struct lpfcMboxq *mbox = NULL;
3641 if ((count + off) > MAILBOX_CMD_SIZE)
3644 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3651 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3654 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
3657 spin_lock_irq(&phba->hbalock);
3660 if (phba->sysfs_mbox.mbox)
3661 mempool_free(mbox, phba->mbox_mem_pool);
3663 phba->sysfs_mbox.mbox = mbox;
3664 phba->sysfs_mbox.state = SMBOX_WRITING;
3666 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
3667 phba->sysfs_mbox.offset != off ||
3668 phba->sysfs_mbox.mbox == NULL) {
3669 sysfs_mbox_idle(phba);
3670 spin_unlock_irq(&phba->hbalock);
3675 memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off,
3678 phba->sysfs_mbox.offset = off + count;
3680 spin_unlock_irq(&phba->hbalock);
3686 * sysfs_mbox_read - Read method for reading information via mbox
3687 * @filp: open sysfs file
3688 * @kobj: kernel kobject that contains the kernel class device.
3689 * @bin_attr: kernel attributes passed to us.
3690 * @buf: contains the data to be read from sysfs mbox.
3691 * @off: offset into buffer to beginning of data.
3692 * @count: bytes to transfer.
3695 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3696 * Uses the sysfs mbox to receive data from to the adapter.
3699 * -ERANGE off greater than mailbox command size
3700 * -EINVAL off, count or buff address invalid
3701 * zero if off and count are zero
3702 * -EACCES adapter over temp
3703 * -EPERM garbage can value to catch a multitude of errors
3704 * -EAGAIN management IO not permitted, state or off error
3705 * -ETIME mailbox timeout
3706 * -ENODEV mailbox error
3707 * count number of bytes transferred
3710 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
3711 struct bin_attribute *bin_attr,
3712 char *buf, loff_t off, size_t count)
3714 struct device *dev = container_of(kobj, struct device, kobj);
3715 struct Scsi_Host *shost = class_to_shost(dev);
3716 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3717 struct lpfc_hba *phba = vport->phba;
3721 if (off > MAILBOX_CMD_SIZE)
3724 if ((count + off) > MAILBOX_CMD_SIZE)
3725 count = MAILBOX_CMD_SIZE - off;
3727 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3730 if (off && count == 0)
3733 spin_lock_irq(&phba->hbalock);
3735 if (phba->over_temp_state == HBA_OVER_TEMP) {
3736 sysfs_mbox_idle(phba);
3737 spin_unlock_irq(&phba->hbalock);
3742 phba->sysfs_mbox.state == SMBOX_WRITING &&
3743 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
3744 pmb = &phba->sysfs_mbox.mbox->u.mb;
3745 switch (pmb->mbxCommand) {
3749 case MBX_CONFIG_LINK:
3750 case MBX_CONFIG_RING:
3751 case MBX_RESET_RING:
3752 case MBX_UNREG_LOGIN:
3754 case MBX_DUMP_CONTEXT:
3759 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3760 printk(KERN_WARNING "mbox_read:Command 0x%x "
3761 "is illegal in on-line state\n",
3763 sysfs_mbox_idle(phba);
3764 spin_unlock_irq(&phba->hbalock);
3768 case MBX_WRITE_VPARMS:
3771 case MBX_READ_CONFIG:
3772 case MBX_READ_RCONFIG:
3773 case MBX_READ_STATUS:
3776 case MBX_READ_LNK_STAT:
3777 case MBX_DUMP_MEMORY:
3779 case MBX_UPDATE_CFG:
3780 case MBX_KILL_BOARD:
3782 case MBX_LOAD_EXP_ROM:
3784 case MBX_DEL_LD_ENTRY:
3785 case MBX_SET_VARIABLE:
3787 case MBX_PORT_CAPABILITIES:
3788 case MBX_PORT_IOV_CONTROL:
3790 case MBX_SECURITY_MGMT:
3792 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
3793 printk(KERN_WARNING "mbox_read:Command 0x%x "
3794 "is not permitted\n", pmb->mbxCommand);
3795 sysfs_mbox_idle(phba);
3796 spin_unlock_irq(&phba->hbalock);
3800 case MBX_READ_SPARM64:
3804 case MBX_REG_LOGIN64:
3805 case MBX_CONFIG_PORT:
3806 case MBX_RUN_BIU_DIAG:
3807 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
3809 sysfs_mbox_idle(phba);
3810 spin_unlock_irq(&phba->hbalock);
3813 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
3815 sysfs_mbox_idle(phba);
3816 spin_unlock_irq(&phba->hbalock);
3820 /* If HBA encountered an error attention, allow only DUMP
3821 * or RESTART mailbox commands until the HBA is restarted.
3823 if (phba->pport->stopped &&
3824 pmb->mbxCommand != MBX_DUMP_MEMORY &&
3825 pmb->mbxCommand != MBX_RESTART &&
3826 pmb->mbxCommand != MBX_WRITE_VPARMS &&
3827 pmb->mbxCommand != MBX_WRITE_WWN)
3828 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
3829 "1259 mbox: Issued mailbox cmd "
3830 "0x%x while in stopped state.\n",
3833 phba->sysfs_mbox.mbox->vport = vport;
3835 /* Don't allow mailbox commands to be sent when blocked
3836 * or when in the middle of discovery
3838 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
3839 sysfs_mbox_idle(phba);
3840 spin_unlock_irq(&phba->hbalock);
3844 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
3845 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
3847 spin_unlock_irq(&phba->hbalock);
3848 rc = lpfc_sli_issue_mbox (phba,
3849 phba->sysfs_mbox.mbox,
3851 spin_lock_irq(&phba->hbalock);
3854 spin_unlock_irq(&phba->hbalock);
3855 rc = lpfc_sli_issue_mbox_wait (phba,
3856 phba->sysfs_mbox.mbox,
3857 lpfc_mbox_tmo_val(phba, pmb->mbxCommand) * HZ);
3858 spin_lock_irq(&phba->hbalock);
3861 if (rc != MBX_SUCCESS) {
3862 if (rc == MBX_TIMEOUT) {
3863 phba->sysfs_mbox.mbox = NULL;
3865 sysfs_mbox_idle(phba);
3866 spin_unlock_irq(&phba->hbalock);
3867 return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
3869 phba->sysfs_mbox.state = SMBOX_READING;
3871 else if (phba->sysfs_mbox.offset != off ||
3872 phba->sysfs_mbox.state != SMBOX_READING) {
3873 printk(KERN_WARNING "mbox_read: Bad State\n");
3874 sysfs_mbox_idle(phba);
3875 spin_unlock_irq(&phba->hbalock);
3879 memcpy(buf, (uint8_t *) &pmb + off, count);
3881 phba->sysfs_mbox.offset = off + count;
3883 if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
3884 sysfs_mbox_idle(phba);
3886 spin_unlock_irq(&phba->hbalock);
3891 static struct bin_attribute sysfs_mbox_attr = {
3894 .mode = S_IRUSR | S_IWUSR,
3896 .size = MAILBOX_CMD_SIZE,
3897 .read = sysfs_mbox_read,
3898 .write = sysfs_mbox_write,
3902 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
3903 * @vport: address of lpfc vport structure.
3907 * error return code from sysfs_create_bin_file()
3910 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
3912 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3915 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3916 &sysfs_drvr_stat_data_attr);
3918 /* Virtual ports do not need ctrl_reg and mbox */
3919 if (error || vport->port_type == LPFC_NPIV_PORT)
3922 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3923 &sysfs_ctlreg_attr);
3925 goto out_remove_stat_attr;
3927 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3930 goto out_remove_ctlreg_attr;
3933 out_remove_ctlreg_attr:
3934 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
3935 out_remove_stat_attr:
3936 sysfs_remove_bin_file(&shost->shost_dev.kobj,
3937 &sysfs_drvr_stat_data_attr);
3943 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
3944 * @vport: address of lpfc vport structure.
3947 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
3949 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3950 sysfs_remove_bin_file(&shost->shost_dev.kobj,
3951 &sysfs_drvr_stat_data_attr);
3952 /* Virtual ports do not need ctrl_reg and mbox */
3953 if (vport->port_type == LPFC_NPIV_PORT)
3955 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
3956 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
3961 * Dynamic FC Host Attributes Support
3965 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
3966 * @shost: kernel scsi host pointer.
3969 lpfc_get_host_port_id(struct Scsi_Host *shost)
3971 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3973 /* note: fc_myDID already in cpu endianness */
3974 fc_host_port_id(shost) = vport->fc_myDID;
3978 * lpfc_get_host_port_type - Set the value of the scsi host port type
3979 * @shost: kernel scsi host pointer.
3982 lpfc_get_host_port_type(struct Scsi_Host *shost)
3984 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3985 struct lpfc_hba *phba = vport->phba;
3987 spin_lock_irq(shost->host_lock);
3989 if (vport->port_type == LPFC_NPIV_PORT) {
3990 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
3991 } else if (lpfc_is_link_up(phba)) {
3992 if (phba->fc_topology == TOPOLOGY_LOOP) {
3993 if (vport->fc_flag & FC_PUBLIC_LOOP)
3994 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
3996 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
3998 if (vport->fc_flag & FC_FABRIC)
3999 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
4001 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
4004 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
4006 spin_unlock_irq(shost->host_lock);
4010 * lpfc_get_host_port_state - Set the value of the scsi host port state
4011 * @shost: kernel scsi host pointer.
4014 lpfc_get_host_port_state(struct Scsi_Host *shost)
4016 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4017 struct lpfc_hba *phba = vport->phba;
4019 spin_lock_irq(shost->host_lock);
4021 if (vport->fc_flag & FC_OFFLINE_MODE)
4022 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
4024 switch (phba->link_state) {
4025 case LPFC_LINK_UNKNOWN:
4026 case LPFC_LINK_DOWN:
4027 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
4031 case LPFC_HBA_READY:
4032 /* Links up, beyond this port_type reports state */
4033 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
4035 case LPFC_HBA_ERROR:
4036 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
4039 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
4044 spin_unlock_irq(shost->host_lock);
4048 * lpfc_get_host_speed - Set the value of the scsi host speed
4049 * @shost: kernel scsi host pointer.
4052 lpfc_get_host_speed(struct Scsi_Host *shost)
4054 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4055 struct lpfc_hba *phba = vport->phba;
4057 spin_lock_irq(shost->host_lock);
4059 if (lpfc_is_link_up(phba)) {
4060 switch(phba->fc_linkspeed) {
4062 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
4065 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
4068 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
4071 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
4074 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
4077 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
4081 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
4083 spin_unlock_irq(shost->host_lock);
4087 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
4088 * @shost: kernel scsi host pointer.
4091 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
4093 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4094 struct lpfc_hba *phba = vport->phba;
4097 spin_lock_irq(shost->host_lock);
4099 if ((vport->fc_flag & FC_FABRIC) ||
4100 ((phba->fc_topology == TOPOLOGY_LOOP) &&
4101 (vport->fc_flag & FC_PUBLIC_LOOP)))
4102 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
4104 /* fabric is local port if there is no F/FL_Port */
4107 spin_unlock_irq(shost->host_lock);
4109 fc_host_fabric_name(shost) = node_name;
4113 * lpfc_get_stats - Return statistical information about the adapter
4114 * @shost: kernel scsi host pointer.
4117 * NULL on error for link down, no mbox pool, sli2 active,
4118 * management not allowed, memory allocation error, or mbox error.
4122 * address of the adapter host statistics
4124 static struct fc_host_statistics *
4125 lpfc_get_stats(struct Scsi_Host *shost)
4127 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4128 struct lpfc_hba *phba = vport->phba;
4129 struct lpfc_sli *psli = &phba->sli;
4130 struct fc_host_statistics *hs = &phba->link_stats;
4131 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
4132 LPFC_MBOXQ_t *pmboxq;
4134 unsigned long seconds;
4138 * prevent udev from issuing mailbox commands until the port is
4141 if (phba->link_state < LPFC_LINK_DOWN ||
4142 !phba->mbox_mem_pool ||
4143 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
4146 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4149 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4152 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
4154 pmb = &pmboxq->u.mb;
4155 pmb->mbxCommand = MBX_READ_STATUS;
4156 pmb->mbxOwner = OWN_HOST;
4157 pmboxq->context1 = NULL;
4158 pmboxq->vport = vport;
4160 if (vport->fc_flag & FC_OFFLINE_MODE)
4161 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4163 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4165 if (rc != MBX_SUCCESS) {
4166 if (rc != MBX_TIMEOUT)
4167 mempool_free(pmboxq, phba->mbox_mem_pool);
4171 memset(hs, 0, sizeof (struct fc_host_statistics));
4173 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
4174 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
4175 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
4176 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
4178 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
4179 pmb->mbxCommand = MBX_READ_LNK_STAT;
4180 pmb->mbxOwner = OWN_HOST;
4181 pmboxq->context1 = NULL;
4182 pmboxq->vport = vport;
4184 if (vport->fc_flag & FC_OFFLINE_MODE)
4185 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4187 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4189 if (rc != MBX_SUCCESS) {
4190 if (rc != MBX_TIMEOUT)
4191 mempool_free(pmboxq, phba->mbox_mem_pool);
4195 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
4196 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
4197 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
4198 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
4199 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
4200 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
4201 hs->error_frames = pmb->un.varRdLnk.crcCnt;
4203 hs->link_failure_count -= lso->link_failure_count;
4204 hs->loss_of_sync_count -= lso->loss_of_sync_count;
4205 hs->loss_of_signal_count -= lso->loss_of_signal_count;
4206 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
4207 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
4208 hs->invalid_crc_count -= lso->invalid_crc_count;
4209 hs->error_frames -= lso->error_frames;
4211 if (phba->hba_flag & HBA_FCOE_SUPPORT) {
4213 hs->nos_count = (phba->link_events >> 1);
4214 hs->nos_count -= lso->link_events;
4215 } else if (phba->fc_topology == TOPOLOGY_LOOP) {
4216 hs->lip_count = (phba->fc_eventTag >> 1);
4217 hs->lip_count -= lso->link_events;
4221 hs->nos_count = (phba->fc_eventTag >> 1);
4222 hs->nos_count -= lso->link_events;
4225 hs->dumped_frames = -1;
4227 seconds = get_seconds();
4228 if (seconds < psli->stats_start)
4229 hs->seconds_since_last_reset = seconds +
4230 ((unsigned long)-1 - psli->stats_start);
4232 hs->seconds_since_last_reset = seconds - psli->stats_start;
4234 mempool_free(pmboxq, phba->mbox_mem_pool);
4240 * lpfc_reset_stats - Copy the adapter link stats information
4241 * @shost: kernel scsi host pointer.
4244 lpfc_reset_stats(struct Scsi_Host *shost)
4246 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4247 struct lpfc_hba *phba = vport->phba;
4248 struct lpfc_sli *psli = &phba->sli;
4249 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
4250 LPFC_MBOXQ_t *pmboxq;
4254 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4257 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4260 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4262 pmb = &pmboxq->u.mb;
4263 pmb->mbxCommand = MBX_READ_STATUS;
4264 pmb->mbxOwner = OWN_HOST;
4265 pmb->un.varWords[0] = 0x1; /* reset request */
4266 pmboxq->context1 = NULL;
4267 pmboxq->vport = vport;
4269 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4270 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4271 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4273 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4275 if (rc != MBX_SUCCESS) {
4276 if (rc != MBX_TIMEOUT)
4277 mempool_free(pmboxq, phba->mbox_mem_pool);
4281 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4282 pmb->mbxCommand = MBX_READ_LNK_STAT;
4283 pmb->mbxOwner = OWN_HOST;
4284 pmboxq->context1 = NULL;
4285 pmboxq->vport = vport;
4287 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4288 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4289 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4291 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4293 if (rc != MBX_SUCCESS) {
4294 if (rc != MBX_TIMEOUT)
4295 mempool_free( pmboxq, phba->mbox_mem_pool);
4299 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
4300 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
4301 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
4302 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
4303 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
4304 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
4305 lso->error_frames = pmb->un.varRdLnk.crcCnt;
4306 if (phba->hba_flag & HBA_FCOE_SUPPORT)
4307 lso->link_events = (phba->link_events >> 1);
4309 lso->link_events = (phba->fc_eventTag >> 1);
4311 psli->stats_start = get_seconds();
4313 mempool_free(pmboxq, phba->mbox_mem_pool);
4319 * The LPFC driver treats linkdown handling as target loss events so there
4320 * are no sysfs handlers for link_down_tmo.
4324 * lpfc_get_node_by_target - Return the nodelist for a target
4325 * @starget: kernel scsi target pointer.
4328 * address of the node list if found
4329 * NULL target not found
4331 static struct lpfc_nodelist *
4332 lpfc_get_node_by_target(struct scsi_target *starget)
4334 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
4335 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4336 struct lpfc_nodelist *ndlp;
4338 spin_lock_irq(shost->host_lock);
4339 /* Search for this, mapped, target ID */
4340 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4341 if (NLP_CHK_NODE_ACT(ndlp) &&
4342 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
4343 starget->id == ndlp->nlp_sid) {
4344 spin_unlock_irq(shost->host_lock);
4348 spin_unlock_irq(shost->host_lock);
4353 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
4354 * @starget: kernel scsi target pointer.
4357 lpfc_get_starget_port_id(struct scsi_target *starget)
4359 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4361 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
4365 * lpfc_get_starget_node_name - Set the target node name
4366 * @starget: kernel scsi target pointer.
4368 * Description: Set the target node name to the ndlp node name wwn or zero.
4371 lpfc_get_starget_node_name(struct scsi_target *starget)
4373 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4375 fc_starget_node_name(starget) =
4376 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
4380 * lpfc_get_starget_port_name - Set the target port name
4381 * @starget: kernel scsi target pointer.
4383 * Description: set the target port name to the ndlp port name wwn or zero.
4386 lpfc_get_starget_port_name(struct scsi_target *starget)
4388 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4390 fc_starget_port_name(starget) =
4391 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
4395 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
4396 * @rport: fc rport address.
4397 * @timeout: new value for dev loss tmo.
4400 * If timeout is non zero set the dev_loss_tmo to timeout, else set
4401 * dev_loss_tmo to one.
4404 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
4407 rport->dev_loss_tmo = timeout;
4409 rport->dev_loss_tmo = 1;
4413 * lpfc_rport_show_function - Return rport target information
4416 * Macro that uses field to generate a function with the name lpfc_show_rport_
4418 * lpfc_show_rport_##field: returns the bytes formatted in buf
4419 * @cdev: class converted to an fc_rport.
4420 * @buf: on return contains the target_field or zero.
4422 * Returns: size of formatted string.
4424 #define lpfc_rport_show_function(field, format_string, sz, cast) \
4426 lpfc_show_rport_##field (struct device *dev, \
4427 struct device_attribute *attr, \
4430 struct fc_rport *rport = transport_class_to_rport(dev); \
4431 struct lpfc_rport_data *rdata = rport->hostdata; \
4432 return snprintf(buf, sz, format_string, \
4433 (rdata->target) ? cast rdata->target->field : 0); \
4436 #define lpfc_rport_rd_attr(field, format_string, sz) \
4437 lpfc_rport_show_function(field, format_string, sz, ) \
4438 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
4441 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
4442 * @fc_vport: The fc_vport who's symbolic name has been changed.
4445 * This function is called by the transport after the @fc_vport's symbolic name
4446 * has been changed. This function re-registers the symbolic name with the
4447 * switch to propogate the change into the fabric if the vport is active.
4450 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
4452 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
4454 if (vport->port_state == LPFC_VPORT_READY)
4455 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
4459 * lpfc_hba_log_verbose_init - Set hba's log verbose level
4460 * @phba: Pointer to lpfc_hba struct.
4462 * This function is called by the lpfc_get_cfgparam() routine to set the
4463 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
4464 * log messsage according to the module's lpfc_log_verbose parameter setting
4465 * before hba port or vport created.
4468 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
4470 phba->cfg_log_verbose = verbose;
4473 struct fc_function_template lpfc_transport_functions = {
4474 /* fixed attributes the driver supports */
4475 .show_host_node_name = 1,
4476 .show_host_port_name = 1,
4477 .show_host_supported_classes = 1,
4478 .show_host_supported_fc4s = 1,
4479 .show_host_supported_speeds = 1,
4480 .show_host_maxframe_size = 1,
4481 .show_host_symbolic_name = 1,
4483 /* dynamic attributes the driver supports */
4484 .get_host_port_id = lpfc_get_host_port_id,
4485 .show_host_port_id = 1,
4487 .get_host_port_type = lpfc_get_host_port_type,
4488 .show_host_port_type = 1,
4490 .get_host_port_state = lpfc_get_host_port_state,
4491 .show_host_port_state = 1,
4493 /* active_fc4s is shown but doesn't change (thus no get function) */
4494 .show_host_active_fc4s = 1,
4496 .get_host_speed = lpfc_get_host_speed,
4497 .show_host_speed = 1,
4499 .get_host_fabric_name = lpfc_get_host_fabric_name,
4500 .show_host_fabric_name = 1,
4503 * The LPFC driver treats linkdown handling as target loss events
4504 * so there are no sysfs handlers for link_down_tmo.
4507 .get_fc_host_stats = lpfc_get_stats,
4508 .reset_fc_host_stats = lpfc_reset_stats,
4510 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
4511 .show_rport_maxframe_size = 1,
4512 .show_rport_supported_classes = 1,
4514 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
4515 .show_rport_dev_loss_tmo = 1,
4517 .get_starget_port_id = lpfc_get_starget_port_id,
4518 .show_starget_port_id = 1,
4520 .get_starget_node_name = lpfc_get_starget_node_name,
4521 .show_starget_node_name = 1,
4523 .get_starget_port_name = lpfc_get_starget_port_name,
4524 .show_starget_port_name = 1,
4526 .issue_fc_host_lip = lpfc_issue_lip,
4527 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
4528 .terminate_rport_io = lpfc_terminate_rport_io,
4530 .dd_fcvport_size = sizeof(struct lpfc_vport *),
4532 .vport_disable = lpfc_vport_disable,
4534 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4536 .bsg_request = lpfc_bsg_request,
4537 .bsg_timeout = lpfc_bsg_timeout,
4540 struct fc_function_template lpfc_vport_transport_functions = {
4541 /* fixed attributes the driver supports */
4542 .show_host_node_name = 1,
4543 .show_host_port_name = 1,
4544 .show_host_supported_classes = 1,
4545 .show_host_supported_fc4s = 1,
4546 .show_host_supported_speeds = 1,
4547 .show_host_maxframe_size = 1,
4548 .show_host_symbolic_name = 1,
4550 /* dynamic attributes the driver supports */
4551 .get_host_port_id = lpfc_get_host_port_id,
4552 .show_host_port_id = 1,
4554 .get_host_port_type = lpfc_get_host_port_type,
4555 .show_host_port_type = 1,
4557 .get_host_port_state = lpfc_get_host_port_state,
4558 .show_host_port_state = 1,
4560 /* active_fc4s is shown but doesn't change (thus no get function) */
4561 .show_host_active_fc4s = 1,
4563 .get_host_speed = lpfc_get_host_speed,
4564 .show_host_speed = 1,
4566 .get_host_fabric_name = lpfc_get_host_fabric_name,
4567 .show_host_fabric_name = 1,
4570 * The LPFC driver treats linkdown handling as target loss events
4571 * so there are no sysfs handlers for link_down_tmo.
4574 .get_fc_host_stats = lpfc_get_stats,
4575 .reset_fc_host_stats = lpfc_reset_stats,
4577 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
4578 .show_rport_maxframe_size = 1,
4579 .show_rport_supported_classes = 1,
4581 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
4582 .show_rport_dev_loss_tmo = 1,
4584 .get_starget_port_id = lpfc_get_starget_port_id,
4585 .show_starget_port_id = 1,
4587 .get_starget_node_name = lpfc_get_starget_node_name,
4588 .show_starget_node_name = 1,
4590 .get_starget_port_name = lpfc_get_starget_port_name,
4591 .show_starget_port_name = 1,
4593 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
4594 .terminate_rport_io = lpfc_terminate_rport_io,
4596 .vport_disable = lpfc_vport_disable,
4598 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4602 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
4603 * @phba: lpfc_hba pointer.
4606 lpfc_get_cfgparam(struct lpfc_hba *phba)
4608 lpfc_cr_delay_init(phba, lpfc_cr_delay);
4609 lpfc_cr_count_init(phba, lpfc_cr_count);
4610 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
4611 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
4612 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
4613 lpfc_ack0_init(phba, lpfc_ack0);
4614 lpfc_topology_init(phba, lpfc_topology);
4615 lpfc_link_speed_init(phba, lpfc_link_speed);
4616 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
4617 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
4618 lpfc_use_msi_init(phba, lpfc_use_msi);
4619 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
4620 lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count);
4621 lpfc_fcp_eq_count_init(phba, lpfc_fcp_eq_count);
4622 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
4623 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
4624 lpfc_enable_bg_init(phba, lpfc_enable_bg);
4625 if (phba->sli_rev == LPFC_SLI_REV4)
4628 phba->cfg_poll = lpfc_poll;
4629 phba->cfg_soft_wwnn = 0L;
4630 phba->cfg_soft_wwpn = 0L;
4631 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
4632 lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
4633 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
4634 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
4635 lpfc_aer_support_init(phba, lpfc_aer_support);
4636 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
4637 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
4642 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
4643 * @vport: lpfc_vport pointer.
4646 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
4648 lpfc_log_verbose_init(vport, lpfc_log_verbose);
4649 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
4650 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
4651 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
4652 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
4653 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
4654 lpfc_restrict_login_init(vport, lpfc_restrict_login);
4655 lpfc_fcp_class_init(vport, lpfc_fcp_class);
4656 lpfc_use_adisc_init(vport, lpfc_use_adisc);
4657 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
4658 lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
4659 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
4660 lpfc_max_luns_init(vport, lpfc_max_luns);
4661 lpfc_scan_down_init(vport, lpfc_scan_down);
4662 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);