1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2014 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/module.h>
27 #include <linux/aer.h>
28 #include <linux/gfp.h>
29 #include <linux/kernel.h>
31 #include <scsi/scsi.h>
32 #include <scsi/scsi_device.h>
33 #include <scsi/scsi_host.h>
34 #include <scsi/scsi_tcq.h>
35 #include <scsi/scsi_transport_fc.h>
36 #include <scsi/fc/fc_fs.h>
41 #include "lpfc_sli4.h"
43 #include "lpfc_disc.h"
44 #include "lpfc_scsi.h"
46 #include "lpfc_logmsg.h"
47 #include "lpfc_version.h"
48 #include "lpfc_compat.h"
49 #include "lpfc_crtn.h"
50 #include "lpfc_vport.h"
52 #define LPFC_DEF_DEVLOSS_TMO 30
53 #define LPFC_MIN_DEVLOSS_TMO 1
54 #define LPFC_MAX_DEVLOSS_TMO 255
57 * Write key size should be multiple of 4. If write key is changed
58 * make sure that library write key is also changed.
60 #define LPFC_REG_WRITE_KEY_SIZE 4
61 #define LPFC_REG_WRITE_KEY "EMLX"
64 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
65 * @incr: integer to convert.
66 * @hdw: ascii string holding converted integer plus a string terminator.
69 * JEDEC Joint Electron Device Engineering Council.
70 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
71 * character string. The string is then terminated with a NULL in byte 9.
72 * Hex 0-9 becomes ascii '0' to '9'.
73 * Hex a-f becomes ascii '=' to 'B' capital B.
76 * Coded for 32 bit integers only.
79 lpfc_jedec_to_ascii(int incr, char hdw[])
82 for (i = 0; i < 8; i++) {
85 hdw[7 - i] = 0x30 + j;
87 hdw[7 - i] = 0x61 + j - 10;
95 * lpfc_drvr_version_show - Return the Emulex driver string with version number
96 * @dev: class unused variable.
97 * @attr: device attribute, not used.
98 * @buf: on return contains the module description text.
100 * Returns: size of formatted string.
103 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
106 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
110 * lpfc_enable_fip_show - Return the fip mode of the HBA
111 * @dev: class unused variable.
112 * @attr: device attribute, not used.
113 * @buf: on return contains the module description text.
115 * Returns: size of formatted string.
118 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
121 struct Scsi_Host *shost = class_to_shost(dev);
122 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
123 struct lpfc_hba *phba = vport->phba;
125 if (phba->hba_flag & HBA_FIP_SUPPORT)
126 return snprintf(buf, PAGE_SIZE, "1\n");
128 return snprintf(buf, PAGE_SIZE, "0\n");
132 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
135 struct Scsi_Host *shost = class_to_shost(dev);
136 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
137 struct lpfc_hba *phba = vport->phba;
139 if (phba->cfg_enable_bg)
140 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
141 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
143 return snprintf(buf, PAGE_SIZE,
144 "BlockGuard Not Supported\n");
146 return snprintf(buf, PAGE_SIZE,
147 "BlockGuard Disabled\n");
151 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
154 struct Scsi_Host *shost = class_to_shost(dev);
155 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
156 struct lpfc_hba *phba = vport->phba;
158 return snprintf(buf, PAGE_SIZE, "%llu\n",
159 (unsigned long long)phba->bg_guard_err_cnt);
163 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
166 struct Scsi_Host *shost = class_to_shost(dev);
167 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
168 struct lpfc_hba *phba = vport->phba;
170 return snprintf(buf, PAGE_SIZE, "%llu\n",
171 (unsigned long long)phba->bg_apptag_err_cnt);
175 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
178 struct Scsi_Host *shost = class_to_shost(dev);
179 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
180 struct lpfc_hba *phba = vport->phba;
182 return snprintf(buf, PAGE_SIZE, "%llu\n",
183 (unsigned long long)phba->bg_reftag_err_cnt);
187 * lpfc_info_show - Return some pci info about the host in ascii
188 * @dev: class converted to a Scsi_host structure.
189 * @attr: device attribute, not used.
190 * @buf: on return contains the formatted text from lpfc_info().
192 * Returns: size of formatted string.
195 lpfc_info_show(struct device *dev, struct device_attribute *attr,
198 struct Scsi_Host *host = class_to_shost(dev);
200 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
204 * lpfc_serialnum_show - Return the hba serial number in ascii
205 * @dev: class converted to a Scsi_host structure.
206 * @attr: device attribute, not used.
207 * @buf: on return contains the formatted text serial number.
209 * Returns: size of formatted string.
212 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
215 struct Scsi_Host *shost = class_to_shost(dev);
216 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
217 struct lpfc_hba *phba = vport->phba;
219 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
223 * lpfc_temp_sensor_show - Return the temperature sensor level
224 * @dev: class converted to a Scsi_host structure.
225 * @attr: device attribute, not used.
226 * @buf: on return contains the formatted support level.
229 * Returns a number indicating the temperature sensor level currently
230 * supported, zero or one in ascii.
232 * Returns: size of formatted string.
235 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
238 struct Scsi_Host *shost = class_to_shost(dev);
239 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
240 struct lpfc_hba *phba = vport->phba;
241 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
245 * lpfc_modeldesc_show - Return the model description of the hba
246 * @dev: class converted to a Scsi_host structure.
247 * @attr: device attribute, not used.
248 * @buf: on return contains the scsi vpd model description.
250 * Returns: size of formatted string.
253 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
256 struct Scsi_Host *shost = class_to_shost(dev);
257 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
258 struct lpfc_hba *phba = vport->phba;
260 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
264 * lpfc_modelname_show - Return the model name of the hba
265 * @dev: class converted to a Scsi_host structure.
266 * @attr: device attribute, not used.
267 * @buf: on return contains the scsi vpd model name.
269 * Returns: size of formatted string.
272 lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
275 struct Scsi_Host *shost = class_to_shost(dev);
276 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
277 struct lpfc_hba *phba = vport->phba;
279 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
283 * lpfc_programtype_show - Return the program type of the hba
284 * @dev: class converted to a Scsi_host structure.
285 * @attr: device attribute, not used.
286 * @buf: on return contains the scsi vpd program type.
288 * Returns: size of formatted string.
291 lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
294 struct Scsi_Host *shost = class_to_shost(dev);
295 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
296 struct lpfc_hba *phba = vport->phba;
298 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
302 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
303 * @dev: class converted to a Scsi_host structure.
304 * @attr: device attribute, not used.
305 * @buf: on return contains the Menlo Maintenance sli flag.
307 * Returns: size of formatted string.
310 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
312 struct Scsi_Host *shost = class_to_shost(dev);
313 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
314 struct lpfc_hba *phba = vport->phba;
316 return snprintf(buf, PAGE_SIZE, "%d\n",
317 (phba->sli.sli_flag & LPFC_MENLO_MAINT));
321 * lpfc_vportnum_show - Return the port number in ascii of the hba
322 * @dev: class converted to a Scsi_host structure.
323 * @attr: device attribute, not used.
324 * @buf: on return contains scsi vpd program type.
326 * Returns: size of formatted string.
329 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
332 struct Scsi_Host *shost = class_to_shost(dev);
333 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
334 struct lpfc_hba *phba = vport->phba;
336 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
340 * lpfc_fwrev_show - Return the firmware rev running in the hba
341 * @dev: class converted to a Scsi_host structure.
342 * @attr: device attribute, not used.
343 * @buf: on return contains the scsi vpd program type.
345 * Returns: size of formatted string.
348 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
351 struct Scsi_Host *shost = class_to_shost(dev);
352 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
353 struct lpfc_hba *phba = vport->phba;
356 char fwrev[FW_REV_STR_SIZE];
359 lpfc_decode_firmware_rev(phba, fwrev, 1);
360 if_type = phba->sli4_hba.pc_sli4_params.if_type;
361 sli_family = phba->sli4_hba.pc_sli4_params.sli_family;
363 if (phba->sli_rev < LPFC_SLI_REV4)
364 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d\n",
365 fwrev, phba->sli_rev);
367 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n",
368 fwrev, phba->sli_rev, if_type, sli_family);
374 * lpfc_hdw_show - Return the jedec information about the hba
375 * @dev: class converted to a Scsi_host structure.
376 * @attr: device attribute, not used.
377 * @buf: on return contains the scsi vpd program type.
379 * Returns: size of formatted string.
382 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
385 struct Scsi_Host *shost = class_to_shost(dev);
386 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
387 struct lpfc_hba *phba = vport->phba;
388 lpfc_vpd_t *vp = &phba->vpd;
390 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
391 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
395 * lpfc_option_rom_version_show - Return the adapter ROM FCode version
396 * @dev: class converted to a Scsi_host structure.
397 * @attr: device attribute, not used.
398 * @buf: on return contains the ROM and FCode ascii strings.
400 * Returns: size of formatted string.
403 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
406 struct Scsi_Host *shost = class_to_shost(dev);
407 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
408 struct lpfc_hba *phba = vport->phba;
410 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
414 * lpfc_state_show - Return the link state of the port
415 * @dev: class converted to a Scsi_host structure.
416 * @attr: device attribute, not used.
417 * @buf: on return contains text describing the state of the link.
420 * The switch statement has no default so zero will be returned.
422 * Returns: size of formatted string.
425 lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
428 struct Scsi_Host *shost = class_to_shost(dev);
429 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
430 struct lpfc_hba *phba = vport->phba;
433 switch (phba->link_state) {
434 case LPFC_LINK_UNKNOWN:
435 case LPFC_WARM_START:
436 case LPFC_INIT_START:
437 case LPFC_INIT_MBX_CMDS:
440 if (phba->hba_flag & LINK_DISABLED)
441 len += snprintf(buf + len, PAGE_SIZE-len,
442 "Link Down - User disabled\n");
444 len += snprintf(buf + len, PAGE_SIZE-len,
450 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
452 switch (vport->port_state) {
453 case LPFC_LOCAL_CFG_LINK:
454 len += snprintf(buf + len, PAGE_SIZE-len,
455 "Configuring Link\n");
459 case LPFC_FABRIC_CFG_LINK:
462 case LPFC_BUILD_DISC_LIST:
464 len += snprintf(buf + len, PAGE_SIZE - len,
467 case LPFC_VPORT_READY:
468 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
471 case LPFC_VPORT_FAILED:
472 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
475 case LPFC_VPORT_UNKNOWN:
476 len += snprintf(buf + len, PAGE_SIZE - len,
480 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
481 len += snprintf(buf + len, PAGE_SIZE-len,
482 " Menlo Maint Mode\n");
483 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
484 if (vport->fc_flag & FC_PUBLIC_LOOP)
485 len += snprintf(buf + len, PAGE_SIZE-len,
488 len += snprintf(buf + len, PAGE_SIZE-len,
491 if (vport->fc_flag & FC_FABRIC)
492 len += snprintf(buf + len, PAGE_SIZE-len,
495 len += snprintf(buf + len, PAGE_SIZE-len,
504 * lpfc_sli4_protocol_show - Return the fip mode of the HBA
505 * @dev: class unused variable.
506 * @attr: device attribute, not used.
507 * @buf: on return contains the module description text.
509 * Returns: size of formatted string.
512 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr,
515 struct Scsi_Host *shost = class_to_shost(dev);
516 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
517 struct lpfc_hba *phba = vport->phba;
519 if (phba->sli_rev < LPFC_SLI_REV4)
520 return snprintf(buf, PAGE_SIZE, "fc\n");
522 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) {
523 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE)
524 return snprintf(buf, PAGE_SIZE, "fcoe\n");
525 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)
526 return snprintf(buf, PAGE_SIZE, "fc\n");
528 return snprintf(buf, PAGE_SIZE, "unknown\n");
532 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage
533 * (OAS) is supported.
534 * @dev: class unused variable.
535 * @attr: device attribute, not used.
536 * @buf: on return contains the module description text.
538 * Returns: size of formatted string.
541 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr,
544 struct Scsi_Host *shost = class_to_shost(dev);
545 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
546 struct lpfc_hba *phba = vport->phba;
548 return snprintf(buf, PAGE_SIZE, "%d\n",
549 phba->sli4_hba.pc_sli4_params.oas_supported);
553 * lpfc_link_state_store - Transition the link_state on an HBA port
554 * @dev: class device that is converted into a Scsi_host.
555 * @attr: device attribute, not used.
556 * @buf: one or more lpfc_polling_flags values.
560 * -EINVAL if the buffer is not "up" or "down"
561 * return from link state change function if non-zero
562 * length of the buf on success
565 lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
566 const char *buf, size_t count)
568 struct Scsi_Host *shost = class_to_shost(dev);
569 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
570 struct lpfc_hba *phba = vport->phba;
572 int status = -EINVAL;
574 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
575 (phba->link_state == LPFC_LINK_DOWN))
576 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
577 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
578 (phba->link_state >= LPFC_LINK_UP))
579 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
588 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
589 * @dev: class device that is converted into a Scsi_host.
590 * @attr: device attribute, not used.
591 * @buf: on return contains the sum of fc mapped and unmapped.
594 * Returns the ascii text number of the sum of the fc mapped and unmapped
597 * Returns: size of formatted string.
600 lpfc_num_discovered_ports_show(struct device *dev,
601 struct device_attribute *attr, char *buf)
603 struct Scsi_Host *shost = class_to_shost(dev);
604 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
606 return snprintf(buf, PAGE_SIZE, "%d\n",
607 vport->fc_map_cnt + vport->fc_unmap_cnt);
611 * lpfc_issue_lip - Misnomer, name carried over from long ago
612 * @shost: Scsi_Host pointer.
615 * Bring the link down gracefully then re-init the link. The firmware will
616 * re-init the fiber channel interface as required. Does not issue a LIP.
619 * -EPERM port offline or management commands are being blocked
620 * -ENOMEM cannot allocate memory for the mailbox command
621 * -EIO error sending the mailbox command
625 lpfc_issue_lip(struct Scsi_Host *shost)
627 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
628 struct lpfc_hba *phba = vport->phba;
629 LPFC_MBOXQ_t *pmboxq;
630 int mbxstatus = MBXERR_ERROR;
632 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
633 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
636 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
641 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
642 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
643 pmboxq->u.mb.mbxOwner = OWN_HOST;
645 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
647 if ((mbxstatus == MBX_SUCCESS) &&
648 (pmboxq->u.mb.mbxStatus == 0 ||
649 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
650 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
651 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
652 phba->cfg_link_speed);
653 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
655 if ((mbxstatus == MBX_SUCCESS) &&
656 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
657 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
658 "2859 SLI authentication is required "
659 "for INIT_LINK but has not done yet\n");
662 lpfc_set_loopback_flag(phba);
663 if (mbxstatus != MBX_TIMEOUT)
664 mempool_free(pmboxq, phba->mbox_mem_pool);
666 if (mbxstatus == MBXERR_ERROR)
673 * lpfc_do_offline - Issues a mailbox command to bring the link down
674 * @phba: lpfc_hba pointer.
675 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
678 * Assumes any error from lpfc_do_offline() will be negative.
679 * Can wait up to 5 seconds for the port ring buffers count
680 * to reach zero, prints a warning if it is not zero and continues.
681 * lpfc_workq_post_event() returns a non-zero return code if call fails.
684 * -EIO error posting the event
688 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
690 struct completion online_compl;
691 struct lpfc_sli_ring *pring;
692 struct lpfc_sli *psli;
698 init_completion(&online_compl);
699 rc = lpfc_workq_post_event(phba, &status, &online_compl,
700 LPFC_EVT_OFFLINE_PREP);
704 wait_for_completion(&online_compl);
711 /* Wait a little for things to settle down, but not
712 * long enough for dev loss timeout to expire.
714 for (i = 0; i < psli->num_rings; i++) {
715 pring = &psli->ring[i];
716 while (!list_empty(&pring->txcmplq)) {
718 if (cnt++ > 500) { /* 5 secs */
719 lpfc_printf_log(phba,
720 KERN_WARNING, LOG_INIT,
721 "0466 Outstanding IO when "
722 "bringing Adapter offline\n");
728 init_completion(&online_compl);
729 rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
733 wait_for_completion(&online_compl);
742 * lpfc_selective_reset - Offline then onlines the port
743 * @phba: lpfc_hba pointer.
746 * If the port is configured to allow a reset then the hba is brought
747 * offline then online.
750 * Assumes any error from lpfc_do_offline() will be negative.
751 * Do not make this function static.
754 * lpfc_do_offline() return code if not zero
755 * -EIO reset not configured or error posting the event
759 lpfc_selective_reset(struct lpfc_hba *phba)
761 struct completion online_compl;
765 if (!phba->cfg_enable_hba_reset)
768 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) {
769 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
775 init_completion(&online_compl);
776 rc = lpfc_workq_post_event(phba, &status, &online_compl,
781 wait_for_completion(&online_compl);
790 * lpfc_issue_reset - Selectively resets an adapter
791 * @dev: class device that is converted into a Scsi_host.
792 * @attr: device attribute, not used.
793 * @buf: containing the string "selective".
794 * @count: unused variable.
797 * If the buf contains the string "selective" then lpfc_selective_reset()
798 * is called to perform the reset.
801 * Assumes any error from lpfc_selective_reset() will be negative.
802 * If lpfc_selective_reset() returns zero then the length of the buffer
803 * is returned which indicates success
806 * -EINVAL if the buffer does not contain the string "selective"
807 * length of buf if lpfc-selective_reset() if the call succeeds
808 * return value of lpfc_selective_reset() if the call fails
811 lpfc_issue_reset(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 int status = -EINVAL;
819 if (!phba->cfg_enable_hba_reset)
822 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
823 status = phba->lpfc_selective_reset(phba);
832 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
833 * @phba: lpfc_hba pointer.
836 * SLI4 interface type-2 device to wait on the sliport status register for
837 * the readyness after performing a firmware reset.
840 * zero for success, -EPERM when port does not have privilege to perform the
841 * reset, -EIO when port timeout from recovering from the reset.
844 * As the caller will interpret the return code by value, be careful in making
845 * change or addition to return codes.
848 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
850 struct lpfc_register portstat_reg = {0};
854 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
855 &portstat_reg.word0);
857 /* verify if privileged for the request operation */
858 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) &&
859 !bf_get(lpfc_sliport_status_err, &portstat_reg))
862 /* wait for the SLI port firmware ready after firmware reset */
863 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
865 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
866 &portstat_reg.word0);
867 if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
869 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
871 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
876 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
883 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
884 * @phba: lpfc_hba pointer.
887 * Request SLI4 interface type-2 device to perform a physical register set
894 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
896 struct completion online_compl;
897 struct pci_dev *pdev = phba->pcidev;
898 uint32_t before_fc_flag;
899 uint32_t sriov_nr_virtfn;
901 int status = 0, rc = 0;
902 int job_posted = 1, sriov_err;
904 if (!phba->cfg_enable_hba_reset)
907 if ((phba->sli_rev < LPFC_SLI_REV4) ||
908 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
909 LPFC_SLI_INTF_IF_TYPE_2))
912 /* Keep state if we need to restore back */
913 before_fc_flag = phba->pport->fc_flag;
914 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;
916 /* Disable SR-IOV virtual functions if enabled */
917 if (phba->cfg_sriov_nr_virtfn) {
918 pci_disable_sriov(pdev);
919 phba->cfg_sriov_nr_virtfn = 0;
922 if (opcode == LPFC_FW_DUMP)
923 phba->hba_flag |= HBA_FW_DUMP_OP;
925 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
928 phba->hba_flag &= ~HBA_FW_DUMP_OP;
932 /* wait for the device to be quiesced before firmware reset */
935 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
936 LPFC_CTL_PDEV_CTL_OFFSET);
938 if (opcode == LPFC_FW_DUMP)
939 reg_val |= LPFC_FW_DUMP_REQUEST;
940 else if (opcode == LPFC_FW_RESET)
941 reg_val |= LPFC_CTL_PDEV_CTL_FRST;
942 else if (opcode == LPFC_DV_RESET)
943 reg_val |= LPFC_CTL_PDEV_CTL_DRST;
945 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
946 LPFC_CTL_PDEV_CTL_OFFSET);
948 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
950 /* delay driver action following IF_TYPE_2 reset */
951 rc = lpfc_sli4_pdev_status_reg_wait(phba);
954 /* no privilege for reset */
955 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
956 "3150 No privilege to perform the requested "
957 "access: x%x\n", reg_val);
958 } else if (rc == -EIO) {
959 /* reset failed, there is nothing more we can do */
960 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
961 "3153 Fail to perform the requested "
962 "access: x%x\n", reg_val);
966 /* keep the original port state */
967 if (before_fc_flag & FC_OFFLINE_MODE)
970 init_completion(&online_compl);
971 job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
976 wait_for_completion(&online_compl);
979 /* in any case, restore the virtual functions enabled as before */
980 if (sriov_nr_virtfn) {
982 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
984 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
987 /* return proper error code */
998 * lpfc_nport_evt_cnt_show - Return the number of nport events
999 * @dev: class device that is converted into a Scsi_host.
1000 * @attr: device attribute, not used.
1001 * @buf: on return contains the ascii number of nport events.
1003 * Returns: size of formatted string.
1006 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
1009 struct Scsi_Host *shost = class_to_shost(dev);
1010 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1011 struct lpfc_hba *phba = vport->phba;
1013 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
1017 * lpfc_board_mode_show - Return the state of the board
1018 * @dev: class device that is converted into a Scsi_host.
1019 * @attr: device attribute, not used.
1020 * @buf: on return contains the state of the adapter.
1022 * Returns: size of formatted string.
1025 lpfc_board_mode_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 (phba->link_state == LPFC_HBA_ERROR)
1035 else if (phba->link_state == LPFC_WARM_START)
1036 state = "warm start";
1037 else if (phba->link_state == LPFC_INIT_START)
1042 return snprintf(buf, PAGE_SIZE, "%s\n", state);
1046 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
1047 * @dev: class device that is converted into a Scsi_host.
1048 * @attr: device attribute, not used.
1049 * @buf: containing one of the strings "online", "offline", "warm" or "error".
1050 * @count: unused variable.
1053 * -EACCES if enable hba reset not enabled
1054 * -EINVAL if the buffer does not contain a valid string (see above)
1055 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
1056 * buf length greater than zero indicates success
1059 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
1060 const char *buf, size_t count)
1062 struct Scsi_Host *shost = class_to_shost(dev);
1063 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1064 struct lpfc_hba *phba = vport->phba;
1065 struct completion online_compl;
1066 char *board_mode_str = NULL;
1070 if (!phba->cfg_enable_hba_reset) {
1072 goto board_mode_out;
1075 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1076 "3050 lpfc_board_mode set to %s\n", buf);
1078 init_completion(&online_compl);
1080 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
1081 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1085 goto board_mode_out;
1087 wait_for_completion(&online_compl);
1088 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
1089 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1090 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
1091 if (phba->sli_rev == LPFC_SLI_REV4)
1094 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
1095 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
1096 if (phba->sli_rev == LPFC_SLI_REV4)
1099 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
1100 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
1101 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
1102 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
1103 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
1104 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
1105 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
1113 board_mode_str = strchr(buf, '\n');
1115 *board_mode_str = '\0';
1116 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1117 "3097 Failed \"%s\", status(%d), "
1119 buf, status, phba->pport->fc_flag);
1125 * lpfc_get_hba_info - Return various bits of informaton about the adapter
1126 * @phba: pointer to the adapter structure.
1127 * @mxri: max xri count.
1128 * @axri: available xri count.
1129 * @mrpi: max rpi count.
1130 * @arpi: available rpi count.
1131 * @mvpi: max vpi count.
1132 * @avpi: available vpi count.
1135 * If an integer pointer for an count is not null then the value for the
1136 * count is returned.
1143 lpfc_get_hba_info(struct lpfc_hba *phba,
1144 uint32_t *mxri, uint32_t *axri,
1145 uint32_t *mrpi, uint32_t *arpi,
1146 uint32_t *mvpi, uint32_t *avpi)
1148 struct lpfc_mbx_read_config *rd_config;
1149 LPFC_MBOXQ_t *pmboxq;
1155 * prevent udev from issuing mailbox commands until the port is
1158 if (phba->link_state < LPFC_LINK_DOWN ||
1159 !phba->mbox_mem_pool ||
1160 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
1163 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
1166 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1169 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1171 pmb = &pmboxq->u.mb;
1172 pmb->mbxCommand = MBX_READ_CONFIG;
1173 pmb->mbxOwner = OWN_HOST;
1174 pmboxq->context1 = NULL;
1176 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1177 rc = MBX_NOT_FINISHED;
1179 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1181 if (rc != MBX_SUCCESS) {
1182 if (rc != MBX_TIMEOUT)
1183 mempool_free(pmboxq, phba->mbox_mem_pool);
1187 if (phba->sli_rev == LPFC_SLI_REV4) {
1188 rd_config = &pmboxq->u.mqe.un.rd_config;
1190 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
1192 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
1193 phba->sli4_hba.max_cfg_param.rpi_used;
1195 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
1197 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
1198 phba->sli4_hba.max_cfg_param.xri_used;
1200 /* Account for differences with SLI-3. Get vpi count from
1201 * mailbox data and subtract one for max vpi value.
1203 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
1204 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
1209 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
1212 *mrpi = pmb->un.varRdConfig.max_rpi;
1214 *arpi = pmb->un.varRdConfig.avail_rpi;
1216 *mxri = pmb->un.varRdConfig.max_xri;
1218 *axri = pmb->un.varRdConfig.avail_xri;
1220 *mvpi = pmb->un.varRdConfig.max_vpi;
1222 *avpi = pmb->un.varRdConfig.avail_vpi;
1225 mempool_free(pmboxq, phba->mbox_mem_pool);
1230 * lpfc_max_rpi_show - Return maximum rpi
1231 * @dev: class device that is converted into a Scsi_host.
1232 * @attr: device attribute, not used.
1233 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
1236 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1237 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1238 * to "Unknown" and the buffer length is returned, therefore the caller
1239 * must check for "Unknown" in the buffer to detect a failure.
1241 * Returns: size of formatted string.
1244 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
1247 struct Scsi_Host *shost = class_to_shost(dev);
1248 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1249 struct lpfc_hba *phba = vport->phba;
1252 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
1253 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1254 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1258 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
1259 * @dev: class device that is converted into a Scsi_host.
1260 * @attr: device attribute, not used.
1261 * @buf: containing the used rpi count in decimal or "Unknown".
1264 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
1265 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1266 * to "Unknown" and the buffer length is returned, therefore the caller
1267 * must check for "Unknown" in the buffer to detect a failure.
1269 * Returns: size of formatted string.
1272 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
1275 struct Scsi_Host *shost = class_to_shost(dev);
1276 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1277 struct lpfc_hba *phba = vport->phba;
1280 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1281 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1282 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1286 * lpfc_max_xri_show - Return maximum xri
1287 * @dev: class device that is converted into a Scsi_host.
1288 * @attr: device attribute, not used.
1289 * @buf: on return contains the maximum xri count in decimal or "Unknown".
1292 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1293 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1294 * to "Unknown" and the buffer length is returned, therefore the caller
1295 * must check for "Unknown" in the buffer to detect a failure.
1297 * Returns: size of formatted string.
1300 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
1303 struct Scsi_Host *shost = class_to_shost(dev);
1304 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1305 struct lpfc_hba *phba = vport->phba;
1308 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1309 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1310 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1314 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1315 * @dev: class device that is converted into a Scsi_host.
1316 * @attr: device attribute, not used.
1317 * @buf: on return contains the used xri count in decimal or "Unknown".
1320 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
1321 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1322 * to "Unknown" and the buffer length is returned, therefore the caller
1323 * must check for "Unknown" in the buffer to detect a failure.
1325 * Returns: size of formatted string.
1328 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
1331 struct Scsi_Host *shost = class_to_shost(dev);
1332 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1333 struct lpfc_hba *phba = vport->phba;
1336 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
1337 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1338 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1342 * lpfc_max_vpi_show - Return maximum vpi
1343 * @dev: class device that is converted into a Scsi_host.
1344 * @attr: device attribute, not used.
1345 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
1348 * Calls lpfc_get_hba_info() asking for just the mvpi count.
1349 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1350 * to "Unknown" and the buffer length is returned, therefore the caller
1351 * must check for "Unknown" in the buffer to detect a failure.
1353 * Returns: size of formatted string.
1356 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
1359 struct Scsi_Host *shost = class_to_shost(dev);
1360 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1361 struct lpfc_hba *phba = vport->phba;
1364 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
1365 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1366 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1370 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1371 * @dev: class device that is converted into a Scsi_host.
1372 * @attr: device attribute, not used.
1373 * @buf: on return contains the used vpi count in decimal or "Unknown".
1376 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
1377 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1378 * to "Unknown" and the buffer length is returned, therefore the caller
1379 * must check for "Unknown" in the buffer to detect a failure.
1381 * Returns: size of formatted string.
1384 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
1387 struct Scsi_Host *shost = class_to_shost(dev);
1388 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1389 struct lpfc_hba *phba = vport->phba;
1392 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
1393 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1394 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1398 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1399 * @dev: class device that is converted into a Scsi_host.
1400 * @attr: device attribute, not used.
1401 * @buf: text that must be interpreted to determine if npiv is supported.
1404 * Buffer will contain text indicating npiv is not suppoerted on the port,
1405 * the port is an NPIV physical port, or it is an npiv virtual port with
1406 * the id of the vport.
1408 * Returns: size of formatted string.
1411 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
1414 struct Scsi_Host *shost = class_to_shost(dev);
1415 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1416 struct lpfc_hba *phba = vport->phba;
1418 if (!(phba->max_vpi))
1419 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
1420 if (vport->port_type == LPFC_PHYSICAL_PORT)
1421 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
1422 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
1426 * lpfc_poll_show - Return text about poll support for the adapter
1427 * @dev: class device that is converted into a Scsi_host.
1428 * @attr: device attribute, not used.
1429 * @buf: on return contains the cfg_poll in hex.
1432 * cfg_poll should be a lpfc_polling_flags type.
1434 * Returns: size of formatted string.
1437 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
1440 struct Scsi_Host *shost = class_to_shost(dev);
1441 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1442 struct lpfc_hba *phba = vport->phba;
1444 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
1448 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1449 * @dev: class device that is converted into a Scsi_host.
1450 * @attr: device attribute, not used.
1451 * @buf: one or more lpfc_polling_flags values.
1455 * buf contents converted to integer and checked for a valid value.
1458 * -EINVAL if the buffer connot be converted or is out of range
1459 * length of the buf on success
1462 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
1463 const char *buf, size_t count)
1465 struct Scsi_Host *shost = class_to_shost(dev);
1466 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1467 struct lpfc_hba *phba = vport->phba;
1472 if (!isdigit(buf[0]))
1475 if (sscanf(buf, "%i", &val) != 1)
1478 if ((val & 0x3) != val)
1481 if (phba->sli_rev == LPFC_SLI_REV4)
1484 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1485 "3051 lpfc_poll changed from %d to %d\n",
1486 phba->cfg_poll, val);
1488 spin_lock_irq(&phba->hbalock);
1490 old_val = phba->cfg_poll;
1492 if (val & ENABLE_FCP_RING_POLLING) {
1493 if ((val & DISABLE_FCP_RING_INT) &&
1494 !(old_val & DISABLE_FCP_RING_INT)) {
1495 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1496 spin_unlock_irq(&phba->hbalock);
1499 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
1500 writel(creg_val, phba->HCregaddr);
1501 readl(phba->HCregaddr); /* flush */
1503 lpfc_poll_start_timer(phba);
1505 } else if (val != 0x0) {
1506 spin_unlock_irq(&phba->hbalock);
1510 if (!(val & DISABLE_FCP_RING_INT) &&
1511 (old_val & DISABLE_FCP_RING_INT))
1513 spin_unlock_irq(&phba->hbalock);
1514 del_timer(&phba->fcp_poll_timer);
1515 spin_lock_irq(&phba->hbalock);
1516 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1517 spin_unlock_irq(&phba->hbalock);
1520 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1521 writel(creg_val, phba->HCregaddr);
1522 readl(phba->HCregaddr); /* flush */
1525 phba->cfg_poll = val;
1527 spin_unlock_irq(&phba->hbalock);
1533 * lpfc_fips_level_show - Return the current FIPS level for the HBA
1534 * @dev: class unused variable.
1535 * @attr: device attribute, not used.
1536 * @buf: on return contains the module description text.
1538 * Returns: size of formatted string.
1541 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr,
1544 struct Scsi_Host *shost = class_to_shost(dev);
1545 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1546 struct lpfc_hba *phba = vport->phba;
1548 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
1552 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
1553 * @dev: class unused variable.
1554 * @attr: device attribute, not used.
1555 * @buf: on return contains the module description text.
1557 * Returns: size of formatted string.
1560 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr,
1563 struct Scsi_Host *shost = class_to_shost(dev);
1564 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1565 struct lpfc_hba *phba = vport->phba;
1567 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
1571 * lpfc_dss_show - Return the current state of dss and the configured state
1572 * @dev: class converted to a Scsi_host structure.
1573 * @attr: device attribute, not used.
1574 * @buf: on return contains the formatted text.
1576 * Returns: size of formatted string.
1579 lpfc_dss_show(struct device *dev, struct device_attribute *attr,
1582 struct Scsi_Host *shost = class_to_shost(dev);
1583 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1584 struct lpfc_hba *phba = vport->phba;
1586 return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
1587 (phba->cfg_enable_dss) ? "Enabled" : "Disabled",
1588 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
1593 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
1594 * @dev: class converted to a Scsi_host structure.
1595 * @attr: device attribute, not used.
1596 * @buf: on return contains the formatted support level.
1599 * Returns the maximum number of virtual functions a physical function can
1600 * support, 0 will be returned if called on virtual function.
1602 * Returns: size of formatted string.
1605 lpfc_sriov_hw_max_virtfn_show(struct device *dev,
1606 struct device_attribute *attr,
1609 struct Scsi_Host *shost = class_to_shost(dev);
1610 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1611 struct lpfc_hba *phba = vport->phba;
1612 uint16_t max_nr_virtfn;
1614 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
1615 return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
1619 * lpfc_param_show - Return a cfg attribute value in decimal
1622 * Macro that given an attr e.g. hba_queue_depth expands
1623 * into a function with the name lpfc_hba_queue_depth_show.
1625 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1626 * @dev: class device that is converted into a Scsi_host.
1627 * @attr: device attribute, not used.
1628 * @buf: on return contains the attribute value in decimal.
1630 * Returns: size of formatted string.
1632 #define lpfc_param_show(attr) \
1634 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1637 struct Scsi_Host *shost = class_to_shost(dev);\
1638 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1639 struct lpfc_hba *phba = vport->phba;\
1641 val = phba->cfg_##attr;\
1642 return snprintf(buf, PAGE_SIZE, "%d\n",\
1647 * lpfc_param_hex_show - Return a cfg attribute value in hex
1650 * Macro that given an attr e.g. hba_queue_depth expands
1651 * into a function with the name lpfc_hba_queue_depth_show
1653 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1654 * @dev: class device that is converted into a Scsi_host.
1655 * @attr: device attribute, not used.
1656 * @buf: on return contains the attribute value in hexadecimal.
1658 * Returns: size of formatted string.
1660 #define lpfc_param_hex_show(attr) \
1662 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1665 struct Scsi_Host *shost = class_to_shost(dev);\
1666 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1667 struct lpfc_hba *phba = vport->phba;\
1669 val = phba->cfg_##attr;\
1670 return snprintf(buf, PAGE_SIZE, "%#x\n",\
1675 * lpfc_param_init - Initializes a cfg attribute
1678 * Macro that given an attr e.g. hba_queue_depth expands
1679 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1680 * takes a default argument, a minimum and maximum argument.
1682 * lpfc_##attr##_init: Initializes an attribute.
1683 * @phba: pointer the the adapter structure.
1684 * @val: integer attribute value.
1686 * Validates the min and max values then sets the adapter config field
1687 * accordingly, or uses the default if out of range and prints an error message.
1691 * -EINVAL if default used
1693 #define lpfc_param_init(attr, default, minval, maxval) \
1695 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1697 if (val >= minval && val <= maxval) {\
1698 phba->cfg_##attr = val;\
1701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1702 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
1703 "allowed range is ["#minval", "#maxval"]\n", val); \
1704 phba->cfg_##attr = default;\
1709 * lpfc_param_set - Set a cfg attribute value
1712 * Macro that given an attr e.g. hba_queue_depth expands
1713 * into a function with the name lpfc_hba_queue_depth_set
1715 * lpfc_##attr##_set: Sets an attribute value.
1716 * @phba: pointer the the adapter structure.
1717 * @val: integer attribute value.
1720 * Validates the min and max values then sets the
1721 * adapter config field if in the valid range. prints error message
1722 * and does not set the parameter if invalid.
1726 * -EINVAL if val is invalid
1728 #define lpfc_param_set(attr, default, minval, maxval) \
1730 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1732 if (val >= minval && val <= maxval) {\
1733 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1734 "3052 lpfc_" #attr " changed from %d to %d\n", \
1735 phba->cfg_##attr, val); \
1736 phba->cfg_##attr = val;\
1739 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1740 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
1741 "allowed range is ["#minval", "#maxval"]\n", val); \
1746 * lpfc_param_store - Set a vport attribute value
1749 * Macro that given an attr e.g. hba_queue_depth expands
1750 * into a function with the name lpfc_hba_queue_depth_store.
1752 * lpfc_##attr##_store: Set an sttribute value.
1753 * @dev: class device that is converted into a Scsi_host.
1754 * @attr: device attribute, not used.
1755 * @buf: contains the attribute value in ascii.
1759 * Convert the ascii text number to an integer, then
1760 * use the lpfc_##attr##_set function to set the value.
1763 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1764 * length of buffer upon success.
1766 #define lpfc_param_store(attr) \
1768 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1769 const char *buf, size_t count) \
1771 struct Scsi_Host *shost = class_to_shost(dev);\
1772 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1773 struct lpfc_hba *phba = vport->phba;\
1775 if (!isdigit(buf[0]))\
1777 if (sscanf(buf, "%i", &val) != 1)\
1779 if (lpfc_##attr##_set(phba, val) == 0) \
1780 return strlen(buf);\
1786 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1789 * Macro that given an attr e.g. hba_queue_depth expands
1790 * into a function with the name lpfc_hba_queue_depth_show
1792 * lpfc_##attr##_show: prints the attribute value in decimal.
1793 * @dev: class device that is converted into a Scsi_host.
1794 * @attr: device attribute, not used.
1795 * @buf: on return contains the attribute value in decimal.
1797 * Returns: length of formatted string.
1799 #define lpfc_vport_param_show(attr) \
1801 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1804 struct Scsi_Host *shost = class_to_shost(dev);\
1805 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1807 val = vport->cfg_##attr;\
1808 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
1812 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1815 * Macro that given an attr e.g.
1816 * hba_queue_depth expands into a function with the name
1817 * lpfc_hba_queue_depth_show
1819 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1820 * @dev: class device that is converted into a Scsi_host.
1821 * @attr: device attribute, not used.
1822 * @buf: on return contains the attribute value in hexadecimal.
1824 * Returns: length of formatted string.
1826 #define lpfc_vport_param_hex_show(attr) \
1828 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1831 struct Scsi_Host *shost = class_to_shost(dev);\
1832 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1834 val = vport->cfg_##attr;\
1835 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
1839 * lpfc_vport_param_init - Initialize a vport cfg attribute
1842 * Macro that given an attr e.g. hba_queue_depth expands
1843 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1844 * takes a default argument, a minimum and maximum argument.
1846 * lpfc_##attr##_init: validates the min and max values then sets the
1847 * adapter config field accordingly, or uses the default if out of range
1848 * and prints an error message.
1849 * @phba: pointer the the adapter structure.
1850 * @val: integer attribute value.
1854 * -EINVAL if default used
1856 #define lpfc_vport_param_init(attr, default, minval, maxval) \
1858 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1860 if (val >= minval && val <= maxval) {\
1861 vport->cfg_##attr = val;\
1864 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1865 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1866 "allowed range is ["#minval", "#maxval"]\n", val); \
1867 vport->cfg_##attr = default;\
1872 * lpfc_vport_param_set - Set a vport cfg attribute
1875 * Macro that given an attr e.g. hba_queue_depth expands
1876 * into a function with the name lpfc_hba_queue_depth_set
1878 * lpfc_##attr##_set: validates the min and max values then sets the
1879 * adapter config field if in the valid range. prints error message
1880 * and does not set the parameter if invalid.
1881 * @phba: pointer the the adapter structure.
1882 * @val: integer attribute value.
1886 * -EINVAL if val is invalid
1888 #define lpfc_vport_param_set(attr, default, minval, maxval) \
1890 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1892 if (val >= minval && val <= maxval) {\
1893 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1894 "3053 lpfc_" #attr \
1895 " changed from %d (x%x) to %d (x%x)\n", \
1896 vport->cfg_##attr, vport->cfg_##attr, \
1898 vport->cfg_##attr = val;\
1901 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1902 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1903 "allowed range is ["#minval", "#maxval"]\n", val); \
1908 * lpfc_vport_param_store - Set a vport attribute
1911 * Macro that given an attr e.g. hba_queue_depth
1912 * expands into a function with the name lpfc_hba_queue_depth_store
1914 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1915 * use the lpfc_##attr##_set function to set the value.
1916 * @cdev: class device that is converted into a Scsi_host.
1917 * @buf: contains the attribute value in decimal.
1921 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1922 * length of buffer upon success.
1924 #define lpfc_vport_param_store(attr) \
1926 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1927 const char *buf, size_t count) \
1929 struct Scsi_Host *shost = class_to_shost(dev);\
1930 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1932 if (!isdigit(buf[0]))\
1934 if (sscanf(buf, "%i", &val) != 1)\
1936 if (lpfc_##attr##_set(vport, val) == 0) \
1937 return strlen(buf);\
1943 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
1944 static uint lpfc_##name = defval;\
1945 module_param(lpfc_##name, uint, S_IRUGO);\
1946 MODULE_PARM_DESC(lpfc_##name, desc);\
1947 lpfc_param_init(name, defval, minval, maxval)
1949 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
1950 static uint lpfc_##name = defval;\
1951 module_param(lpfc_##name, uint, S_IRUGO);\
1952 MODULE_PARM_DESC(lpfc_##name, desc);\
1953 lpfc_param_show(name)\
1954 lpfc_param_init(name, defval, minval, maxval)\
1955 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1957 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
1958 static uint lpfc_##name = defval;\
1959 module_param(lpfc_##name, uint, S_IRUGO);\
1960 MODULE_PARM_DESC(lpfc_##name, desc);\
1961 lpfc_param_show(name)\
1962 lpfc_param_init(name, defval, minval, maxval)\
1963 lpfc_param_set(name, defval, minval, maxval)\
1964 lpfc_param_store(name)\
1965 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1966 lpfc_##name##_show, lpfc_##name##_store)
1968 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1969 static uint lpfc_##name = defval;\
1970 module_param(lpfc_##name, uint, S_IRUGO);\
1971 MODULE_PARM_DESC(lpfc_##name, desc);\
1972 lpfc_param_hex_show(name)\
1973 lpfc_param_init(name, defval, minval, maxval)\
1974 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1976 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1977 static uint lpfc_##name = defval;\
1978 module_param(lpfc_##name, uint, S_IRUGO);\
1979 MODULE_PARM_DESC(lpfc_##name, desc);\
1980 lpfc_param_hex_show(name)\
1981 lpfc_param_init(name, defval, minval, maxval)\
1982 lpfc_param_set(name, defval, minval, maxval)\
1983 lpfc_param_store(name)\
1984 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1985 lpfc_##name##_show, lpfc_##name##_store)
1987 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
1988 static uint lpfc_##name = defval;\
1989 module_param(lpfc_##name, uint, S_IRUGO);\
1990 MODULE_PARM_DESC(lpfc_##name, desc);\
1991 lpfc_vport_param_init(name, defval, minval, maxval)
1993 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
1994 static uint lpfc_##name = defval;\
1995 module_param(lpfc_##name, uint, S_IRUGO);\
1996 MODULE_PARM_DESC(lpfc_##name, desc);\
1997 lpfc_vport_param_show(name)\
1998 lpfc_vport_param_init(name, defval, minval, maxval)\
1999 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
2001 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
2002 static uint lpfc_##name = defval;\
2003 module_param(lpfc_##name, uint, S_IRUGO);\
2004 MODULE_PARM_DESC(lpfc_##name, desc);\
2005 lpfc_vport_param_show(name)\
2006 lpfc_vport_param_init(name, defval, minval, maxval)\
2007 lpfc_vport_param_set(name, defval, minval, maxval)\
2008 lpfc_vport_param_store(name)\
2009 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
2010 lpfc_##name##_show, lpfc_##name##_store)
2012 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
2013 static uint lpfc_##name = defval;\
2014 module_param(lpfc_##name, uint, S_IRUGO);\
2015 MODULE_PARM_DESC(lpfc_##name, desc);\
2016 lpfc_vport_param_hex_show(name)\
2017 lpfc_vport_param_init(name, defval, minval, maxval)\
2018 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
2020 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
2021 static uint lpfc_##name = defval;\
2022 module_param(lpfc_##name, uint, S_IRUGO);\
2023 MODULE_PARM_DESC(lpfc_##name, desc);\
2024 lpfc_vport_param_hex_show(name)\
2025 lpfc_vport_param_init(name, defval, minval, maxval)\
2026 lpfc_vport_param_set(name, defval, minval, maxval)\
2027 lpfc_vport_param_store(name)\
2028 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
2029 lpfc_##name##_show, lpfc_##name##_store)
2031 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
2032 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
2033 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
2034 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
2035 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
2036 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
2037 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
2038 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
2039 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
2040 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
2041 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
2042 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
2043 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
2044 lpfc_link_state_store);
2045 static DEVICE_ATTR(option_rom_version, S_IRUGO,
2046 lpfc_option_rom_version_show, NULL);
2047 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
2048 lpfc_num_discovered_ports_show, NULL);
2049 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
2050 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
2051 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
2052 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
2053 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
2054 lpfc_board_mode_show, lpfc_board_mode_store);
2055 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
2056 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
2057 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
2058 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
2059 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
2060 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
2061 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
2062 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
2063 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
2064 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
2065 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
2066 static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
2067 static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
2068 lpfc_sriov_hw_max_virtfn_show, NULL);
2069 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
2070 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
2073 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
2076 * lpfc_wwn_set - Convert string to the 8 byte WWN value.
2078 * @cnt: Length of string.
2079 * @wwn: Array to receive converted wwn value.
2082 * -EINVAL if the buffer does not contain a valid wwn
2086 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[])
2090 /* Count may include a LF at end of string */
2091 if (buf[cnt-1] == '\n')
2094 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) ||
2095 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
2098 memset(wwn, 0, WWN_SZ);
2100 /* Validate and store the new name */
2101 for (i = 0, j = 0; i < 16; i++) {
2102 if ((*buf >= 'a') && (*buf <= 'f'))
2103 j = ((j << 4) | ((*buf++ - 'a') + 10));
2104 else if ((*buf >= 'A') && (*buf <= 'F'))
2105 j = ((j << 4) | ((*buf++ - 'A') + 10));
2106 else if ((*buf >= '0') && (*buf <= '9'))
2107 j = ((j << 4) | (*buf++ - '0'));
2111 wwn[i/2] = j & 0xff;
2118 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
2119 * @dev: class device that is converted into a Scsi_host.
2120 * @attr: device attribute, not used.
2121 * @buf: containing the string lpfc_soft_wwn_key.
2122 * @count: must be size of lpfc_soft_wwn_key.
2125 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
2126 * length of buf indicates success
2129 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
2130 const char *buf, size_t count)
2132 struct Scsi_Host *shost = class_to_shost(dev);
2133 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2134 struct lpfc_hba *phba = vport->phba;
2135 unsigned int cnt = count;
2138 * We're doing a simple sanity check for soft_wwpn setting.
2139 * We require that the user write a specific key to enable
2140 * the soft_wwpn attribute to be settable. Once the attribute
2141 * is written, the enable key resets. If further updates are
2142 * desired, the key must be written again to re-enable the
2145 * The "key" is not secret - it is a hardcoded string shown
2146 * here. The intent is to protect against the random user or
2147 * application that is just writing attributes.
2150 /* count may include a LF at end of string */
2151 if (buf[cnt-1] == '\n')
2154 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
2155 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
2158 phba->soft_wwn_enable = 1;
2161 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
2162 lpfc_soft_wwn_enable_store);
2165 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
2166 * @dev: class device that is converted into a Scsi_host.
2167 * @attr: device attribute, not used.
2168 * @buf: on return contains the wwpn in hexadecimal.
2170 * Returns: size of formatted string.
2173 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
2176 struct Scsi_Host *shost = class_to_shost(dev);
2177 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2178 struct lpfc_hba *phba = vport->phba;
2180 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2181 (unsigned long long)phba->cfg_soft_wwpn);
2185 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
2186 * @dev class device that is converted into a Scsi_host.
2187 * @attr: device attribute, not used.
2188 * @buf: contains the wwpn in hexadecimal.
2189 * @count: number of wwpn bytes in buf
2192 * -EACCES hba reset not enabled, adapter over temp
2193 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
2194 * -EIO error taking adapter offline or online
2195 * value of count on success
2198 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
2199 const char *buf, size_t count)
2201 struct Scsi_Host *shost = class_to_shost(dev);
2202 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2203 struct lpfc_hba *phba = vport->phba;
2204 struct completion online_compl;
2205 int stat1 = 0, stat2 = 0;
2206 unsigned int cnt = count;
2210 if (!phba->cfg_enable_hba_reset)
2212 spin_lock_irq(&phba->hbalock);
2213 if (phba->over_temp_state == HBA_OVER_TEMP) {
2214 spin_unlock_irq(&phba->hbalock);
2217 spin_unlock_irq(&phba->hbalock);
2218 /* count may include a LF at end of string */
2219 if (buf[cnt-1] == '\n')
2222 if (!phba->soft_wwn_enable)
2225 /* lock setting wwpn, wwnn down */
2226 phba->soft_wwn_enable = 0;
2228 rc = lpfc_wwn_set(buf, cnt, wwpn);
2230 /* not able to set wwpn, unlock it */
2231 phba->soft_wwn_enable = 1;
2235 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
2236 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
2237 if (phba->cfg_soft_wwnn)
2238 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
2240 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2241 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
2243 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
2245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2246 "0463 lpfc_soft_wwpn attribute set failed to "
2247 "reinit adapter - %d\n", stat1);
2248 init_completion(&online_compl);
2249 rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
2254 wait_for_completion(&online_compl);
2256 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2257 "0464 lpfc_soft_wwpn attribute set failed to "
2258 "reinit adapter - %d\n", stat2);
2259 return (stat1 || stat2) ? -EIO : count;
2261 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,
2262 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
2265 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
2266 * @dev: class device that is converted into a Scsi_host.
2267 * @attr: device attribute, not used.
2268 * @buf: on return contains the wwnn in hexadecimal.
2270 * Returns: size of formatted string.
2273 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
2276 struct Scsi_Host *shost = class_to_shost(dev);
2277 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2278 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2279 (unsigned long long)phba->cfg_soft_wwnn);
2283 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
2284 * @cdev: class device that is converted into a Scsi_host.
2285 * @buf: contains the ww node name in hexadecimal.
2286 * @count: number of wwnn bytes in buf.
2289 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
2290 * value of count on success
2293 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
2294 const char *buf, size_t count)
2296 struct Scsi_Host *shost = class_to_shost(dev);
2297 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2298 unsigned int cnt = count;
2302 /* count may include a LF at end of string */
2303 if (buf[cnt-1] == '\n')
2306 if (!phba->soft_wwn_enable)
2309 rc = lpfc_wwn_set(buf, cnt, wwnn);
2311 /* Allow wwnn to be set many times, as long as the enable
2312 * is set. However, once the wwpn is set, everything locks.
2317 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
2319 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2320 "lpfc%d: soft_wwnn set. Value will take effect upon "
2321 "setting of the soft_wwpn\n", phba->brd_no);
2325 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,
2326 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
2329 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
2330 * Optimized Access Storage (OAS) operations.
2331 * @dev: class device that is converted into a Scsi_host.
2332 * @attr: device attribute, not used.
2333 * @buf: buffer for passing information.
2339 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr,
2342 struct Scsi_Host *shost = class_to_shost(dev);
2343 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2345 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2346 wwn_to_u64(phba->cfg_oas_tgt_wwpn));
2350 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for
2351 * Optimized Access Storage (OAS) operations.
2352 * @dev: class device that is converted into a Scsi_host.
2353 * @attr: device attribute, not used.
2354 * @buf: buffer for passing information.
2355 * @count: Size of the data buffer.
2358 * -EINVAL count is invalid, invalid wwpn byte invalid
2359 * -EPERM oas is not supported by hba
2360 * value of count on success
2363 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr,
2364 const char *buf, size_t count)
2366 struct Scsi_Host *shost = class_to_shost(dev);
2367 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2368 unsigned int cnt = count;
2369 uint8_t wwpn[WWN_SZ];
2375 /* count may include a LF at end of string */
2376 if (buf[cnt-1] == '\n')
2379 rc = lpfc_wwn_set(buf, cnt, wwpn);
2383 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2384 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2385 if (wwn_to_u64(wwpn) == 0)
2386 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET;
2388 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET;
2389 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
2390 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
2393 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR,
2394 lpfc_oas_tgt_show, lpfc_oas_tgt_store);
2397 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled
2398 * for Optimized Access Storage (OAS) operations.
2399 * @dev: class device that is converted into a Scsi_host.
2400 * @attr: device attribute, not used.
2401 * @buf: buffer for passing information.
2404 * value of count on success
2407 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr,
2410 struct Scsi_Host *shost = class_to_shost(dev);
2411 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2413 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2414 wwn_to_u64(phba->cfg_oas_vpt_wwpn));
2418 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled
2419 * for Optimized Access Storage (OAS) operations.
2420 * @dev: class device that is converted into a Scsi_host.
2421 * @attr: device attribute, not used.
2422 * @buf: buffer for passing information.
2423 * @count: Size of the data buffer.
2426 * -EINVAL count is invalid, invalid wwpn byte invalid
2427 * -EPERM oas is not supported by hba
2428 * value of count on success
2431 lpfc_oas_vpt_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_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2436 unsigned int cnt = count;
2437 uint8_t wwpn[WWN_SZ];
2443 /* count may include a LF at end of string */
2444 if (buf[cnt-1] == '\n')
2447 rc = lpfc_wwn_set(buf, cnt, wwpn);
2451 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2452 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2453 if (wwn_to_u64(wwpn) == 0)
2454 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT;
2456 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT;
2457 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
2458 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
2461 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR,
2462 lpfc_oas_vpt_show, lpfc_oas_vpt_store);
2465 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled)
2466 * of whether luns will be enabled or disabled
2467 * for Optimized Access Storage (OAS) operations.
2468 * @dev: class device that is converted into a Scsi_host.
2469 * @attr: device attribute, not used.
2470 * @buf: buffer for passing information.
2473 * size of formatted string.
2476 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr,
2479 struct Scsi_Host *shost = class_to_shost(dev);
2480 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2482 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
2486 * lpfc_oas_lun_state_store - Store the state (enabled or disabled)
2487 * of whether luns will be enabled or disabled
2488 * for Optimized Access Storage (OAS) operations.
2489 * @dev: class device that is converted into a Scsi_host.
2490 * @attr: device attribute, not used.
2491 * @buf: buffer for passing information.
2492 * @count: Size of the data buffer.
2495 * -EINVAL count is invalid, invalid wwpn byte invalid
2496 * -EPERM oas is not supported by hba
2497 * value of count on success
2500 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr,
2501 const char *buf, size_t count)
2503 struct Scsi_Host *shost = class_to_shost(dev);
2504 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2510 if (!isdigit(buf[0]))
2513 if (sscanf(buf, "%i", &val) != 1)
2516 if ((val != 0) && (val != 1))
2519 phba->cfg_oas_lun_state = val;
2523 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR,
2524 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store);
2527 * lpfc_oas_lun_status_show - Return the status of the Optimized Access
2528 * Storage (OAS) lun returned by the
2529 * lpfc_oas_lun_show function.
2530 * @dev: class device that is converted into a Scsi_host.
2531 * @attr: device attribute, not used.
2532 * @buf: buffer for passing information.
2535 * size of formatted string.
2538 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr,
2541 struct Scsi_Host *shost = class_to_shost(dev);
2542 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2544 if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
2547 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
2549 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
2550 lpfc_oas_lun_status_show, NULL);
2554 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage
2556 * @phba: lpfc_hba pointer.
2557 * @ndlp: pointer to fcp target node.
2558 * @lun: the fc lun for setting oas state.
2559 * @oas_state: the oas state to be set to the lun.
2563 * -EPERM OAS is not enabled or not supported by this port.
2567 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2568 uint8_t tgt_wwpn[], uint64_t lun, uint32_t oas_state)
2577 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
2578 (struct lpfc_name *)tgt_wwpn, lun))
2581 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
2582 (struct lpfc_name *)tgt_wwpn, lun);
2589 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized
2590 * Access Storage (OAS) operations.
2591 * @phba: lpfc_hba pointer.
2592 * @vpt_wwpn: wwpn of the vport associated with the returned lun
2593 * @tgt_wwpn: wwpn of the target associated with the returned lun
2594 * @lun_status: status of the lun returned lun
2596 * Returns the first or next lun enabled for OAS operations for the vport/target
2597 * specified. If a lun is found, its vport wwpn, target wwpn and status is
2598 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned.
2601 * lun that is OAS enabled for the vport/target
2602 * NOT_OAS_ENABLED_LUN when no oas enabled lun found.
2605 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2606 uint8_t tgt_wwpn[], uint32_t *lun_status)
2610 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn)
2611 return NOT_OAS_ENABLED_LUN;
2612 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *)
2613 phba->sli4_hba.oas_next_vpt_wwpn,
2614 (struct lpfc_name *)
2615 phba->sli4_hba.oas_next_tgt_wwpn,
2616 &phba->sli4_hba.oas_next_lun,
2617 (struct lpfc_name *)vpt_wwpn,
2618 (struct lpfc_name *)tgt_wwpn,
2619 &found_lun, lun_status))
2622 return NOT_OAS_ENABLED_LUN;
2626 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations
2627 * @phba: lpfc_hba pointer.
2628 * @vpt_wwpn: vport wwpn by reference.
2629 * @tgt_wwpn: target wwpn by reference.
2630 * @lun: the fc lun for setting oas state.
2631 * @oas_state: the oas state to be set to the oas_lun.
2633 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE)
2634 * a lun for OAS operations.
2638 * -ENOMEM: failed to enable an lun for OAS operations
2639 * -EPERM: OAS is not enabled
2642 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2643 uint8_t tgt_wwpn[], uint64_t lun,
2649 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun,
2655 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target
2656 * @dev: class device that is converted into a Scsi_host.
2657 * @attr: device attribute, not used.
2658 * @buf: buffer for passing information.
2660 * This routine returns a lun enabled for OAS each time the function
2664 * SUCCESS: size of formatted string.
2665 * -EFAULT: target or vport wwpn was not set properly.
2666 * -EPERM: oas is not enabled.
2669 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr,
2672 struct Scsi_Host *shost = class_to_shost(dev);
2673 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2681 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
2682 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT))
2685 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
2686 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET))
2689 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn,
2690 phba->cfg_oas_tgt_wwpn,
2691 &phba->cfg_oas_lun_status);
2692 if (oas_lun != NOT_OAS_ENABLED_LUN)
2693 phba->cfg_oas_flags |= OAS_LUN_VALID;
2695 len += snprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
2701 * lpfc_oas_lun_store - Sets the OAS state for lun
2702 * @dev: class device that is converted into a Scsi_host.
2703 * @attr: device attribute, not used.
2704 * @buf: buffer for passing information.
2706 * This function sets the OAS state for lun. Before this function is called,
2707 * the vport wwpn, target wwpn, and oas state need to be set.
2710 * SUCCESS: size of formatted string.
2711 * -EFAULT: target or vport wwpn was not set properly.
2712 * -EPERM: oas is not enabled.
2713 * size of formatted string.
2716 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr,
2717 const char *buf, size_t count)
2719 struct Scsi_Host *shost = class_to_shost(dev);
2720 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2727 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
2730 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
2733 if (!isdigit(buf[0]))
2736 if (sscanf(buf, "0x%llx", &scsi_lun) != 1)
2739 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2740 "3372 Try to set vport 0x%llx target 0x%llx lun:%lld "
2741 "with oas set to %d\n",
2742 wwn_to_u64(phba->cfg_oas_vpt_wwpn),
2743 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun,
2744 phba->cfg_oas_lun_state);
2746 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn,
2747 phba->cfg_oas_tgt_wwpn, scsi_lun,
2748 phba->cfg_oas_lun_state);
2755 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR,
2756 lpfc_oas_lun_show, lpfc_oas_lun_store);
2758 static int lpfc_poll = 0;
2759 module_param(lpfc_poll, int, S_IRUGO);
2760 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
2762 " 1 - poll with interrupts enabled"
2763 " 3 - poll and disable FCP ring interrupts");
2765 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
2766 lpfc_poll_show, lpfc_poll_store);
2768 int lpfc_sli_mode = 0;
2769 module_param(lpfc_sli_mode, int, S_IRUGO);
2770 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
2771 " 0 - auto (SLI-3 if supported),"
2772 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
2773 " 3 - select SLI-3");
2775 int lpfc_enable_npiv = 1;
2776 module_param(lpfc_enable_npiv, int, S_IRUGO);
2777 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
2778 lpfc_param_show(enable_npiv);
2779 lpfc_param_init(enable_npiv, 1, 0, 1);
2780 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
2782 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
2783 "FCF Fast failover=1 Priority failover=2");
2785 int lpfc_enable_rrq = 2;
2786 module_param(lpfc_enable_rrq, int, S_IRUGO);
2787 MODULE_PARM_DESC(lpfc_enable_rrq, "Enable RRQ functionality");
2788 lpfc_param_show(enable_rrq);
2790 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures
2791 # 0x0 = disabled, XRI/OXID use not tracked.
2792 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent.
2793 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent.
2795 lpfc_param_init(enable_rrq, 2, 0, 2);
2796 static DEVICE_ATTR(lpfc_enable_rrq, S_IRUGO, lpfc_enable_rrq_show, NULL);
2799 # lpfc_suppress_link_up: Bring link up at initialization
2800 # 0x0 = bring link up (issue MBX_INIT_LINK)
2801 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
2802 # 0x2 = never bring up link
2803 # Default value is 0.
2805 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
2806 LPFC_DELAY_INIT_LINK_INDEFINITELY,
2807 "Suppress Link Up at initialization");
2809 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
2817 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2819 struct Scsi_Host *shost = class_to_shost(dev);
2820 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2822 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
2825 static DEVICE_ATTR(iocb_hw, S_IRUGO,
2826 lpfc_iocb_hw_show, NULL);
2828 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2830 struct Scsi_Host *shost = class_to_shost(dev);
2831 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2833 return snprintf(buf, PAGE_SIZE, "%d\n",
2834 phba->sli.ring[LPFC_ELS_RING].txq_max);
2837 static DEVICE_ATTR(txq_hw, S_IRUGO,
2838 lpfc_txq_hw_show, NULL);
2840 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
2843 struct Scsi_Host *shost = class_to_shost(dev);
2844 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2846 return snprintf(buf, PAGE_SIZE, "%d\n",
2847 phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
2850 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
2851 lpfc_txcmplq_hw_show, NULL);
2853 int lpfc_iocb_cnt = 2;
2854 module_param(lpfc_iocb_cnt, int, S_IRUGO);
2855 MODULE_PARM_DESC(lpfc_iocb_cnt,
2856 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
2857 lpfc_param_show(iocb_cnt);
2858 lpfc_param_init(iocb_cnt, 2, 1, 5);
2859 static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO,
2860 lpfc_iocb_cnt_show, NULL);
2863 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
2864 # until the timer expires. Value range is [0,255]. Default value is 30.
2866 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2867 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
2868 module_param(lpfc_nodev_tmo, int, 0);
2869 MODULE_PARM_DESC(lpfc_nodev_tmo,
2870 "Seconds driver will hold I/O waiting "
2871 "for a device to come back");
2874 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2875 * @dev: class converted to a Scsi_host structure.
2876 * @attr: device attribute, not used.
2877 * @buf: on return contains the dev loss timeout in decimal.
2879 * Returns: size of formatted string.
2882 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
2885 struct Scsi_Host *shost = class_to_shost(dev);
2886 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2888 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
2892 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2893 * @vport: lpfc vport structure pointer.
2894 * @val: contains the nodev timeout value.
2897 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
2898 * a kernel error message is printed and zero is returned.
2899 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2900 * Otherwise nodev tmo is set to the default value.
2903 * zero if already set or if val is in range
2904 * -EINVAL val out of range
2907 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
2909 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
2910 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
2911 if (val != LPFC_DEF_DEVLOSS_TMO)
2912 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2913 "0407 Ignoring nodev_tmo module "
2914 "parameter because devloss_tmo is "
2919 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2920 vport->cfg_nodev_tmo = val;
2921 vport->cfg_devloss_tmo = val;
2924 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2925 "0400 lpfc_nodev_tmo attribute cannot be set to"
2926 " %d, allowed range is [%d, %d]\n",
2927 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2928 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2933 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2934 * @vport: lpfc vport structure pointer.
2937 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
2940 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2942 struct Scsi_Host *shost;
2943 struct lpfc_nodelist *ndlp;
2945 shost = lpfc_shost_from_vport(vport);
2946 spin_lock_irq(shost->host_lock);
2947 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2948 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2949 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
2950 spin_unlock_irq(shost->host_lock);
2954 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2955 * @vport: lpfc vport structure pointer.
2956 * @val: contains the tmo value.
2959 * If the devloss tmo is already set or the vport dev loss tmo has changed
2960 * then a kernel error message is printed and zero is returned.
2961 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2962 * Otherwise nodev tmo is set to the default value.
2965 * zero if already set or if val is in range
2966 * -EINVAL val out of range
2969 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2971 if (vport->dev_loss_tmo_changed ||
2972 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2973 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2974 "0401 Ignoring change to nodev_tmo "
2975 "because devloss_tmo is set.\n");
2978 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2979 vport->cfg_nodev_tmo = val;
2980 vport->cfg_devloss_tmo = val;
2982 * For compat: set the fc_host dev loss so new rports
2983 * will get the value.
2985 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2986 lpfc_update_rport_devloss_tmo(vport);
2989 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2990 "0403 lpfc_nodev_tmo attribute cannot be set to"
2991 "%d, allowed range is [%d, %d]\n",
2992 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2996 lpfc_vport_param_store(nodev_tmo)
2998 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
2999 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
3002 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
3003 # disappear until the timer expires. Value range is [0,255]. Default
3006 module_param(lpfc_devloss_tmo, int, S_IRUGO);
3007 MODULE_PARM_DESC(lpfc_devloss_tmo,
3008 "Seconds driver will hold I/O waiting "
3009 "for a device to come back");
3010 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
3011 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
3012 lpfc_vport_param_show(devloss_tmo)
3015 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
3016 * @vport: lpfc vport structure pointer.
3017 * @val: contains the tmo value.
3020 * If val is in a valid range then set the vport nodev tmo,
3021 * devloss tmo, also set the vport dev loss tmo changed flag.
3022 * Else a kernel error message is printed.
3025 * zero if val is in range
3026 * -EINVAL val out of range
3029 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
3031 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3032 vport->cfg_nodev_tmo = val;
3033 vport->cfg_devloss_tmo = val;
3034 vport->dev_loss_tmo_changed = 1;
3035 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3036 lpfc_update_rport_devloss_tmo(vport);
3040 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3041 "0404 lpfc_devloss_tmo attribute cannot be set to"
3042 " %d, allowed range is [%d, %d]\n",
3043 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3047 lpfc_vport_param_store(devloss_tmo)
3048 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
3049 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
3052 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
3053 # deluged with LOTS of information.
3054 # You can set a bit mask to record specific types of verbose messages:
3055 # See lpfc_logmsh.h for definitions.
3057 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
3058 "Verbose logging bit-mask");
3061 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
3062 # objects that have been registered with the nameserver after login.
3064 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
3065 "Deregister nameserver objects before LOGO");
3068 # lun_queue_depth: This parameter is used to limit the number of outstanding
3069 # commands per FCP LUN. Value range is [1,512]. Default value is 30.
3070 # If this parameter value is greater than 1/8th the maximum number of exchanges
3071 # supported by the HBA port, then the lun queue depth will be reduced to
3072 # 1/8th the maximum number of exchanges.
3074 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512,
3075 "Max number of FCP commands we can queue to a specific LUN");
3078 # tgt_queue_depth: This parameter is used to limit the number of outstanding
3079 # commands per target port. Value range is [10,65535]. Default value is 65535.
3081 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
3082 "Max number of FCP commands we can queue to a specific target port");
3085 # hba_queue_depth: This parameter is used to limit the number of outstanding
3086 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
3087 # value is greater than the maximum number of exchanges supported by the HBA,
3088 # then maximum number of exchanges supported by the HBA is used to determine
3089 # the hba_queue_depth.
3091 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
3092 "Max number of FCP commands we can queue to a lpfc HBA");
3095 # peer_port_login: This parameter allows/prevents logins
3096 # between peer ports hosted on the same physical port.
3097 # When this parameter is set 0 peer ports of same physical port
3098 # are not allowed to login to each other.
3099 # When this parameter is set 1 peer ports of same physical port
3100 # are allowed to login to each other.
3101 # Default value of this parameter is 0.
3103 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
3104 "Allow peer ports on the same physical port to login to each "
3108 # restrict_login: This parameter allows/prevents logins
3109 # between Virtual Ports and remote initiators.
3110 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
3111 # other initiators and will attempt to PLOGI all remote ports.
3112 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
3113 # remote ports and will not attempt to PLOGI to other initiators.
3114 # This parameter does not restrict to the physical port.
3115 # This parameter does not restrict logins to Fabric resident remote ports.
3116 # Default value of this parameter is 1.
3118 static int lpfc_restrict_login = 1;
3119 module_param(lpfc_restrict_login, int, S_IRUGO);
3120 MODULE_PARM_DESC(lpfc_restrict_login,
3121 "Restrict virtual ports login to remote initiators.");
3122 lpfc_vport_param_show(restrict_login);
3125 * lpfc_restrict_login_init - Set the vport restrict login flag
3126 * @vport: lpfc vport structure pointer.
3127 * @val: contains the restrict login value.
3130 * If val is not in a valid range then log a kernel error message and set
3131 * the vport restrict login to one.
3132 * If the port type is physical clear the restrict login flag and return.
3133 * Else set the restrict login flag to val.
3136 * zero if val is in range
3137 * -EINVAL val out of range
3140 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
3142 if (val < 0 || val > 1) {
3143 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3144 "0422 lpfc_restrict_login attribute cannot "
3145 "be set to %d, allowed range is [0, 1]\n",
3147 vport->cfg_restrict_login = 1;
3150 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3151 vport->cfg_restrict_login = 0;
3154 vport->cfg_restrict_login = val;
3159 * lpfc_restrict_login_set - Set the vport restrict login flag
3160 * @vport: lpfc vport structure pointer.
3161 * @val: contains the restrict login value.
3164 * If val is not in a valid range then log a kernel error message and set
3165 * the vport restrict login to one.
3166 * If the port type is physical and the val is not zero log a kernel
3167 * error message, clear the restrict login flag and return zero.
3168 * Else set the restrict login flag to val.
3171 * zero if val is in range
3172 * -EINVAL val out of range
3175 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
3177 if (val < 0 || val > 1) {
3178 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3179 "0425 lpfc_restrict_login attribute cannot "
3180 "be set to %d, allowed range is [0, 1]\n",
3182 vport->cfg_restrict_login = 1;
3185 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
3186 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3187 "0468 lpfc_restrict_login must be 0 for "
3188 "Physical ports.\n");
3189 vport->cfg_restrict_login = 0;
3192 vport->cfg_restrict_login = val;
3195 lpfc_vport_param_store(restrict_login);
3196 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
3197 lpfc_restrict_login_show, lpfc_restrict_login_store);
3200 # Some disk devices have a "select ID" or "select Target" capability.
3201 # From a protocol standpoint "select ID" usually means select the
3202 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
3203 # annex" which contains a table that maps a "select ID" (a number
3204 # between 0 and 7F) to an ALPA. By default, for compatibility with
3205 # older drivers, the lpfc driver scans this table from low ALPA to high
3208 # Turning on the scan-down variable (on = 1, off = 0) will
3209 # cause the lpfc driver to use an inverted table, effectively
3210 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
3212 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
3213 # and will not work across a fabric. Also this parameter will take
3214 # effect only in the case when ALPA map is not available.)
3216 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
3217 "Start scanning for devices from highest ALPA to lowest");
3220 # lpfc_topology: link topology for init link
3221 # 0x0 = attempt loop mode then point-to-point
3222 # 0x01 = internal loopback mode
3223 # 0x02 = attempt point-to-point mode only
3224 # 0x04 = attempt loop mode only
3225 # 0x06 = attempt point-to-point mode then loop
3226 # Set point-to-point mode if you want to run as an N_Port.
3227 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
3228 # Default value is 0.
3232 * lpfc_topology_set - Set the adapters topology field
3233 * @phba: lpfc_hba pointer.
3234 * @val: topology value.
3237 * If val is in a valid range then set the adapter's topology field and
3238 * issue a lip; if the lip fails reset the topology to the old value.
3240 * If the value is not in range log a kernel error message and return an error.
3243 * zero if val is in range and lip okay
3244 * non-zero return value from lpfc_issue_lip()
3245 * -EINVAL val out of range
3248 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
3249 const char *buf, size_t count)
3251 struct Scsi_Host *shost = class_to_shost(dev);
3252 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3253 struct lpfc_hba *phba = vport->phba;
3256 const char *val_buf = buf;
3260 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
3262 val_buf = &buf[strlen("nolip ")];
3265 if (!isdigit(val_buf[0]))
3267 if (sscanf(val_buf, "%i", &val) != 1)
3270 if (val >= 0 && val <= 6) {
3271 prev_val = phba->cfg_topology;
3272 phba->cfg_topology = val;
3273 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
3275 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3276 "3113 Loop mode not supported at speed %d\n",
3277 phba->cfg_link_speed);
3278 phba->cfg_topology = prev_val;
3284 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3285 "3054 lpfc_topology changed from %d to %d\n",
3287 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4)
3288 phba->fc_topology_changed = 1;
3289 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3291 phba->cfg_topology = prev_val;
3296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3297 "%d:0467 lpfc_topology attribute cannot be set to %d, "
3298 "allowed range is [0, 6]\n",
3302 static int lpfc_topology = 0;
3303 module_param(lpfc_topology, int, S_IRUGO);
3304 MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
3305 lpfc_param_show(topology)
3306 lpfc_param_init(topology, 0, 0, 6)
3307 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
3308 lpfc_topology_show, lpfc_topology_store);
3311 * lpfc_static_vport_show: Read callback function for
3312 * lpfc_static_vport sysfs file.
3313 * @dev: Pointer to class device object.
3314 * @attr: device attribute structure.
3315 * @buf: Data buffer.
3317 * This function is the read call back function for
3318 * lpfc_static_vport sysfs file. The lpfc_static_vport
3319 * sysfs file report the mageability of the vport.
3322 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
3325 struct Scsi_Host *shost = class_to_shost(dev);
3326 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3327 if (vport->vport_flag & STATIC_VPORT)
3328 sprintf(buf, "1\n");
3330 sprintf(buf, "0\n");
3336 * Sysfs attribute to control the statistical data collection.
3338 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
3339 lpfc_static_vport_show, NULL);
3342 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
3343 * @dev: Pointer to class device.
3344 * @buf: Data buffer.
3345 * @count: Size of the data buffer.
3347 * This function get called when an user write to the lpfc_stat_data_ctrl
3348 * sysfs file. This function parse the command written to the sysfs file
3349 * and take appropriate action. These commands are used for controlling
3350 * driver statistical data collection.
3351 * Following are the command this function handles.
3353 * setbucket <bucket_type> <base> <step>
3354 * = Set the latency buckets.
3355 * destroybucket = destroy all the buckets.
3356 * start = start data collection
3357 * stop = stop data collection
3358 * reset = reset the collected data
3361 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
3362 const char *buf, size_t count)
3364 struct Scsi_Host *shost = class_to_shost(dev);
3365 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3366 struct lpfc_hba *phba = vport->phba;
3367 #define LPFC_MAX_DATA_CTRL_LEN 1024
3368 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
3370 char *str_ptr, *token;
3371 struct lpfc_vport **vports;
3372 struct Scsi_Host *v_shost;
3373 char *bucket_type_str, *base_str, *step_str;
3374 unsigned long base, step, bucket_type;
3376 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
3377 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
3380 strcpy(bucket_data, buf);
3381 str_ptr = &bucket_data[0];
3382 /* Ignore this token - this is command token */
3383 token = strsep(&str_ptr, "\t ");
3387 bucket_type_str = strsep(&str_ptr, "\t ");
3388 if (!bucket_type_str)
3391 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
3392 bucket_type = LPFC_LINEAR_BUCKET;
3393 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
3394 bucket_type = LPFC_POWER2_BUCKET;
3398 base_str = strsep(&str_ptr, "\t ");
3401 base = simple_strtoul(base_str, NULL, 0);
3403 step_str = strsep(&str_ptr, "\t ");
3406 step = simple_strtoul(step_str, NULL, 0);
3410 /* Block the data collection for every vport */
3411 vports = lpfc_create_vport_work_array(phba);
3415 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3416 v_shost = lpfc_shost_from_vport(vports[i]);
3417 spin_lock_irq(v_shost->host_lock);
3418 /* Block and reset data collection */
3419 vports[i]->stat_data_blocked = 1;
3420 if (vports[i]->stat_data_enabled)
3421 lpfc_vport_reset_stat_data(vports[i]);
3422 spin_unlock_irq(v_shost->host_lock);
3425 /* Set the bucket attributes */
3426 phba->bucket_type = bucket_type;
3427 phba->bucket_base = base;
3428 phba->bucket_step = step;
3430 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3431 v_shost = lpfc_shost_from_vport(vports[i]);
3433 /* Unblock data collection */
3434 spin_lock_irq(v_shost->host_lock);
3435 vports[i]->stat_data_blocked = 0;
3436 spin_unlock_irq(v_shost->host_lock);
3438 lpfc_destroy_vport_work_array(phba, vports);
3442 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
3443 vports = lpfc_create_vport_work_array(phba);
3447 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3448 v_shost = lpfc_shost_from_vport(vports[i]);
3449 spin_lock_irq(shost->host_lock);
3450 vports[i]->stat_data_blocked = 1;
3451 lpfc_free_bucket(vport);
3452 vport->stat_data_enabled = 0;
3453 vports[i]->stat_data_blocked = 0;
3454 spin_unlock_irq(shost->host_lock);
3456 lpfc_destroy_vport_work_array(phba, vports);
3457 phba->bucket_type = LPFC_NO_BUCKET;
3458 phba->bucket_base = 0;
3459 phba->bucket_step = 0;
3463 if (!strncmp(buf, "start", strlen("start"))) {
3464 /* If no buckets configured return error */
3465 if (phba->bucket_type == LPFC_NO_BUCKET)
3467 spin_lock_irq(shost->host_lock);
3468 if (vport->stat_data_enabled) {
3469 spin_unlock_irq(shost->host_lock);
3472 lpfc_alloc_bucket(vport);
3473 vport->stat_data_enabled = 1;
3474 spin_unlock_irq(shost->host_lock);
3478 if (!strncmp(buf, "stop", strlen("stop"))) {
3479 spin_lock_irq(shost->host_lock);
3480 if (vport->stat_data_enabled == 0) {
3481 spin_unlock_irq(shost->host_lock);
3484 lpfc_free_bucket(vport);
3485 vport->stat_data_enabled = 0;
3486 spin_unlock_irq(shost->host_lock);
3490 if (!strncmp(buf, "reset", strlen("reset"))) {
3491 if ((phba->bucket_type == LPFC_NO_BUCKET)
3492 || !vport->stat_data_enabled)
3494 spin_lock_irq(shost->host_lock);
3495 vport->stat_data_blocked = 1;
3496 lpfc_vport_reset_stat_data(vport);
3497 vport->stat_data_blocked = 0;
3498 spin_unlock_irq(shost->host_lock);
3506 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
3507 * @dev: Pointer to class device object.
3508 * @buf: Data buffer.
3510 * This function is the read call back function for
3511 * lpfc_stat_data_ctrl sysfs file. This function report the
3512 * current statistical data collection state.
3515 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
3518 struct Scsi_Host *shost = class_to_shost(dev);
3519 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3520 struct lpfc_hba *phba = vport->phba;
3524 unsigned long bucket_value;
3526 switch (phba->bucket_type) {
3527 case LPFC_LINEAR_BUCKET:
3528 bucket_type = "linear";
3530 case LPFC_POWER2_BUCKET:
3531 bucket_type = "power2";
3534 bucket_type = "No Bucket";
3538 sprintf(&buf[index], "Statistical Data enabled :%d, "
3539 "blocked :%d, Bucket type :%s, Bucket base :%d,"
3540 " Bucket step :%d\nLatency Ranges :",
3541 vport->stat_data_enabled, vport->stat_data_blocked,
3542 bucket_type, phba->bucket_base, phba->bucket_step);
3543 index = strlen(buf);
3544 if (phba->bucket_type != LPFC_NO_BUCKET) {
3545 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
3546 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
3547 bucket_value = phba->bucket_base +
3548 phba->bucket_step * i;
3550 bucket_value = phba->bucket_base +
3551 (1 << i) * phba->bucket_step;
3553 if (index + 10 > PAGE_SIZE)
3555 sprintf(&buf[index], "%08ld ", bucket_value);
3556 index = strlen(buf);
3559 sprintf(&buf[index], "\n");
3564 * Sysfs attribute to control the statistical data collection.
3566 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
3567 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
3570 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
3574 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
3577 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
3578 #define MAX_STAT_DATA_SIZE_PER_TARGET \
3579 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
3583 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
3585 * @kobj: Pointer to the kernel object
3586 * @bin_attr: Attribute object
3587 * @buff: Buffer pointer
3589 * @count: Buffer size
3591 * This function is the read call back function for lpfc_drvr_stat_data
3592 * sysfs file. This function export the statistical data to user
3596 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
3597 struct bin_attribute *bin_attr,
3598 char *buf, loff_t off, size_t count)
3600 struct device *dev = container_of(kobj, struct device,
3602 struct Scsi_Host *shost = class_to_shost(dev);
3603 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3604 struct lpfc_hba *phba = vport->phba;
3605 int i = 0, index = 0;
3606 unsigned long nport_index;
3607 struct lpfc_nodelist *ndlp = NULL;
3608 nport_index = (unsigned long)off /
3609 MAX_STAT_DATA_SIZE_PER_TARGET;
3611 if (!vport->stat_data_enabled || vport->stat_data_blocked
3612 || (phba->bucket_type == LPFC_NO_BUCKET))
3615 spin_lock_irq(shost->host_lock);
3616 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3617 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
3620 if (nport_index > 0) {
3625 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
3629 if (!ndlp->lat_data)
3633 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
3634 ndlp->nlp_portname.u.wwn[0],
3635 ndlp->nlp_portname.u.wwn[1],
3636 ndlp->nlp_portname.u.wwn[2],
3637 ndlp->nlp_portname.u.wwn[3],
3638 ndlp->nlp_portname.u.wwn[4],
3639 ndlp->nlp_portname.u.wwn[5],
3640 ndlp->nlp_portname.u.wwn[6],
3641 ndlp->nlp_portname.u.wwn[7]);
3643 index = strlen(buf);
3645 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
3646 sprintf(&buf[index], "%010u,",
3647 ndlp->lat_data[i].cmd_count);
3648 index = strlen(buf);
3650 sprintf(&buf[index], "\n");
3651 index = strlen(buf);
3653 spin_unlock_irq(shost->host_lock);
3657 static struct bin_attribute sysfs_drvr_stat_data_attr = {
3659 .name = "lpfc_drvr_stat_data",
3662 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
3663 .read = sysfs_drvr_stat_data_read,
3668 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
3670 # Value range is [0,16]. Default value is 0.
3673 * lpfc_link_speed_set - Set the adapters link speed
3674 * @phba: lpfc_hba pointer.
3675 * @val: link speed value.
3678 * If val is in a valid range then set the adapter's link speed field and
3679 * issue a lip; if the lip fails reset the link speed to the old value.
3682 * If the value is not in range log a kernel error message and return an error.
3685 * zero if val is in range and lip okay.
3686 * non-zero return value from lpfc_issue_lip()
3687 * -EINVAL val out of range
3690 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
3691 const char *buf, size_t count)
3693 struct Scsi_Host *shost = class_to_shost(dev);
3694 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3695 struct lpfc_hba *phba = vport->phba;
3696 int val = LPFC_USER_LINK_SPEED_AUTO;
3698 const char *val_buf = buf;
3702 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
3704 val_buf = &buf[strlen("nolip ")];
3707 if (!isdigit(val_buf[0]))
3709 if (sscanf(val_buf, "%i", &val) != 1)
3712 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3713 "3055 lpfc_link_speed changed from %d to %d %s\n",
3714 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
3716 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
3717 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
3718 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
3719 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
3720 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
3721 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb))) {
3722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3723 "2879 lpfc_link_speed attribute cannot be set "
3724 "to %d. Speed is not supported by this port.\n",
3728 if (val == LPFC_USER_LINK_SPEED_16G &&
3729 phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3731 "3112 lpfc_link_speed attribute cannot be set "
3732 "to %d. Speed is not supported in loop mode.\n",
3736 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3737 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3738 prev_val = phba->cfg_link_speed;
3739 phba->cfg_link_speed = val;
3743 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3745 phba->cfg_link_speed = prev_val;
3750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3751 "0469 lpfc_link_speed attribute cannot be set to %d, "
3752 "allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val);
3756 static int lpfc_link_speed = 0;
3757 module_param(lpfc_link_speed, int, S_IRUGO);
3758 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
3759 lpfc_param_show(link_speed)
3762 * lpfc_link_speed_init - Set the adapters link speed
3763 * @phba: lpfc_hba pointer.
3764 * @val: link speed value.
3767 * If val is in a valid range then set the adapter's link speed field.
3770 * If the value is not in range log a kernel error message, clear the link
3771 * speed and return an error.
3774 * zero if val saved.
3775 * -EINVAL val out of range
3778 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
3780 if (val == LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
3781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3782 "3111 lpfc_link_speed of %d cannot "
3783 "support loop mode, setting topology to default.\n",
3785 phba->cfg_topology = 0;
3787 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3788 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3789 phba->cfg_link_speed = val;
3792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3793 "0405 lpfc_link_speed attribute cannot "
3794 "be set to %d, allowed values are "
3795 "["LPFC_LINK_SPEED_STRING"]\n", val);
3796 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
3800 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
3801 lpfc_link_speed_show, lpfc_link_speed_store);
3804 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
3805 # 0 = aer disabled or not supported
3806 # 1 = aer supported and enabled (default)
3807 # Value range is [0,1]. Default value is 1.
3811 * lpfc_aer_support_store - Set the adapter for aer support
3813 * @dev: class device that is converted into a Scsi_host.
3814 * @attr: device attribute, not used.
3815 * @buf: containing enable or disable aer flag.
3816 * @count: unused variable.
3819 * If the val is 1 and currently the device's AER capability was not
3820 * enabled, invoke the kernel's enable AER helper routine, trying to
3821 * enable the device's AER capability. If the helper routine enabling
3822 * AER returns success, update the device's cfg_aer_support flag to
3823 * indicate AER is supported by the device; otherwise, if the device
3824 * AER capability is already enabled to support AER, then do nothing.
3826 * If the val is 0 and currently the device's AER support was enabled,
3827 * invoke the kernel's disable AER helper routine. After that, update
3828 * the device's cfg_aer_support flag to indicate AER is not supported
3829 * by the device; otherwise, if the device AER capability is already
3830 * disabled from supporting AER, then do nothing.
3833 * length of the buf on success if val is in range the intended mode
3835 * -EINVAL if val out of range or intended mode is not supported.
3838 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
3839 const char *buf, size_t count)
3841 struct Scsi_Host *shost = class_to_shost(dev);
3842 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
3843 struct lpfc_hba *phba = vport->phba;
3844 int val = 0, rc = -EINVAL;
3846 if (!isdigit(buf[0]))
3848 if (sscanf(buf, "%i", &val) != 1)
3853 if (phba->hba_flag & HBA_AER_ENABLED) {
3854 rc = pci_disable_pcie_error_reporting(phba->pcidev);
3856 spin_lock_irq(&phba->hbalock);
3857 phba->hba_flag &= ~HBA_AER_ENABLED;
3858 spin_unlock_irq(&phba->hbalock);
3859 phba->cfg_aer_support = 0;
3864 phba->cfg_aer_support = 0;
3869 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
3870 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3872 spin_lock_irq(&phba->hbalock);
3873 phba->hba_flag |= HBA_AER_ENABLED;
3874 spin_unlock_irq(&phba->hbalock);
3875 phba->cfg_aer_support = 1;
3880 phba->cfg_aer_support = 1;
3891 static int lpfc_aer_support = 1;
3892 module_param(lpfc_aer_support, int, S_IRUGO);
3893 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
3894 lpfc_param_show(aer_support)
3897 * lpfc_aer_support_init - Set the initial adapters aer support flag
3898 * @phba: lpfc_hba pointer.
3899 * @val: enable aer or disable aer flag.
3902 * If val is in a valid range [0,1], then set the adapter's initial
3903 * cfg_aer_support field. It will be up to the driver's probe_one
3904 * routine to determine whether the device's AER support can be set
3908 * If the value is not in range log a kernel error message, and
3909 * choose the default value of setting AER support and return.
3912 * zero if val saved.
3913 * -EINVAL val out of range
3916 lpfc_aer_support_init(struct lpfc_hba *phba, int val)
3918 if (val == 0 || val == 1) {
3919 phba->cfg_aer_support = val;
3922 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3923 "2712 lpfc_aer_support attribute value %d out "
3924 "of range, allowed values are 0|1, setting it "
3925 "to default value of 1\n", val);
3926 /* By default, try to enable AER on a device */
3927 phba->cfg_aer_support = 1;
3931 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
3932 lpfc_aer_support_show, lpfc_aer_support_store);
3935 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
3936 * @dev: class device that is converted into a Scsi_host.
3937 * @attr: device attribute, not used.
3938 * @buf: containing flag 1 for aer cleanup state.
3939 * @count: unused variable.
3942 * If the @buf contains 1 and the device currently has the AER support
3943 * enabled, then invokes the kernel AER helper routine
3944 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
3945 * error status register.
3950 * -EINVAL if the buf does not contain the 1 or the device is not currently
3951 * enabled with the AER support.
3954 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
3955 const char *buf, size_t count)
3957 struct Scsi_Host *shost = class_to_shost(dev);
3958 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3959 struct lpfc_hba *phba = vport->phba;
3962 if (!isdigit(buf[0]))
3964 if (sscanf(buf, "%i", &val) != 1)
3969 if (phba->hba_flag & HBA_AER_ENABLED)
3970 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
3978 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
3979 lpfc_aer_cleanup_state);
3982 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
3984 * @dev: class device that is converted into a Scsi_host.
3985 * @attr: device attribute, not used.
3986 * @buf: containing the string the number of vfs to be enabled.
3987 * @count: unused variable.
3990 * When this api is called either through user sysfs, the driver shall
3991 * try to enable or disable SR-IOV virtual functions according to the
3994 * If zero virtual function has been enabled to the physical function,
3995 * the driver shall invoke the pci enable virtual function api trying
3996 * to enable the virtual functions. If the nr_vfn provided is greater
3997 * than the maximum supported, the maximum virtual function number will
3998 * be used for invoking the api; otherwise, the nr_vfn provided shall
3999 * be used for invoking the api. If the api call returned success, the
4000 * actual number of virtual functions enabled will be set to the driver
4001 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
4002 * cfg_sriov_nr_virtfn remains zero.
4004 * If none-zero virtual functions have already been enabled to the
4005 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
4006 * -EINVAL will be returned and the driver does nothing;
4008 * If the nr_vfn provided is zero and none-zero virtual functions have
4009 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
4010 * disabling virtual function api shall be invoded to disable all the
4011 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
4012 * zero. Otherwise, if zero virtual function has been enabled, do
4016 * length of the buf on success if val is in range the intended mode
4018 * -EINVAL if val out of range or intended mode is not supported.
4021 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
4022 const char *buf, size_t count)
4024 struct Scsi_Host *shost = class_to_shost(dev);
4025 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4026 struct lpfc_hba *phba = vport->phba;
4027 struct pci_dev *pdev = phba->pcidev;
4028 int val = 0, rc = -EINVAL;
4030 /* Sanity check on user data */
4031 if (!isdigit(buf[0]))
4033 if (sscanf(buf, "%i", &val) != 1)
4038 /* Request disabling virtual functions */
4040 if (phba->cfg_sriov_nr_virtfn > 0) {
4041 pci_disable_sriov(pdev);
4042 phba->cfg_sriov_nr_virtfn = 0;
4047 /* Request enabling virtual functions */
4048 if (phba->cfg_sriov_nr_virtfn > 0) {
4049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4050 "3018 There are %d virtual functions "
4051 "enabled on physical function.\n",
4052 phba->cfg_sriov_nr_virtfn);
4056 if (val <= LPFC_MAX_VFN_PER_PFN)
4057 phba->cfg_sriov_nr_virtfn = val;
4059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4060 "3019 Enabling %d virtual functions is not "
4065 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
4067 phba->cfg_sriov_nr_virtfn = 0;
4075 static int lpfc_sriov_nr_virtfn = LPFC_DEF_VFN_PER_PFN;
4076 module_param(lpfc_sriov_nr_virtfn, int, S_IRUGO|S_IWUSR);
4077 MODULE_PARM_DESC(lpfc_sriov_nr_virtfn, "Enable PCIe device SR-IOV virtual fn");
4078 lpfc_param_show(sriov_nr_virtfn)
4081 * lpfc_sriov_nr_virtfn_init - Set the initial sr-iov virtual function enable
4082 * @phba: lpfc_hba pointer.
4083 * @val: link speed value.
4086 * If val is in a valid range [0,255], then set the adapter's initial
4087 * cfg_sriov_nr_virtfn field. If it's greater than the maximum, the maximum
4088 * number shall be used instead. It will be up to the driver's probe_one
4089 * routine to determine whether the device's SR-IOV is supported or not.
4092 * zero if val saved.
4093 * -EINVAL val out of range
4096 lpfc_sriov_nr_virtfn_init(struct lpfc_hba *phba, int val)
4098 if (val >= 0 && val <= LPFC_MAX_VFN_PER_PFN) {
4099 phba->cfg_sriov_nr_virtfn = val;
4103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4104 "3017 Enabling %d virtual functions is not "
4108 static DEVICE_ATTR(lpfc_sriov_nr_virtfn, S_IRUGO | S_IWUSR,
4109 lpfc_sriov_nr_virtfn_show, lpfc_sriov_nr_virtfn_store);
4112 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade
4114 * @dev: class device that is converted into a Scsi_host.
4115 * @attr: device attribute, not used.
4116 * @buf: containing the string the number of vfs to be enabled.
4117 * @count: unused variable.
4122 * length of the buf on success if val is in range the intended mode
4124 * -EINVAL if val out of range or intended mode is not supported.
4127 lpfc_request_firmware_upgrade_store(struct device *dev,
4128 struct device_attribute *attr,
4129 const char *buf, size_t count)
4131 struct Scsi_Host *shost = class_to_shost(dev);
4132 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4133 struct lpfc_hba *phba = vport->phba;
4134 int val = 0, rc = -EINVAL;
4136 /* Sanity check on user data */
4137 if (!isdigit(buf[0]))
4139 if (sscanf(buf, "%i", &val) != 1)
4144 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE);
4152 static int lpfc_req_fw_upgrade;
4153 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR);
4154 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade");
4155 lpfc_param_show(request_firmware_upgrade)
4158 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade
4159 * @phba: lpfc_hba pointer.
4163 * Set the initial Linux generic firmware upgrade enable or disable flag.
4166 * zero if val saved.
4167 * -EINVAL val out of range
4170 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val)
4172 if (val >= 0 && val <= 1) {
4173 phba->cfg_request_firmware_upgrade = val;
4178 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR,
4179 lpfc_request_firmware_upgrade_show,
4180 lpfc_request_firmware_upgrade_store);
4183 * lpfc_fcp_imax_store
4185 * @dev: class device that is converted into a Scsi_host.
4186 * @attr: device attribute, not used.
4187 * @buf: string with the number of fast-path FCP interrupts per second.
4188 * @count: unused variable.
4191 * If val is in a valid range [636,651042], then set the adapter's
4192 * maximum number of fast-path FCP interrupts per second.
4195 * length of the buf on success if val is in range the intended mode
4197 * -EINVAL if val out of range or intended mode is not supported.
4200 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
4201 const char *buf, size_t count)
4203 struct Scsi_Host *shost = class_to_shost(dev);
4204 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4205 struct lpfc_hba *phba = vport->phba;
4208 /* fcp_imax is only valid for SLI4 */
4209 if (phba->sli_rev != LPFC_SLI_REV4)
4212 /* Sanity check on user data */
4213 if (!isdigit(buf[0]))
4215 if (sscanf(buf, "%i", &val) != 1)
4219 * Value range for the HBA is [5000,5000000]
4220 * The value for each EQ depends on how many EQs are configured.
4222 if (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)
4225 phba->cfg_fcp_imax = (uint32_t)val;
4226 for (i = 0; i < phba->cfg_fcp_io_channel; i += LPFC_MAX_EQ_DELAY)
4227 lpfc_modify_fcp_eq_delay(phba, i);
4233 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
4236 # Value range is [5,000 to 5,000,000]. Default value is 50,000.
4238 static int lpfc_fcp_imax = LPFC_DEF_IMAX;
4239 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
4240 MODULE_PARM_DESC(lpfc_fcp_imax,
4241 "Set the maximum number of FCP interrupts per second per HBA");
4242 lpfc_param_show(fcp_imax)
4245 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable
4246 * @phba: lpfc_hba pointer.
4247 * @val: link speed value.
4250 * If val is in a valid range [636,651042], then initialize the adapter's
4251 * maximum number of fast-path FCP interrupts per second.
4254 * zero if val saved.
4255 * -EINVAL val out of range
4258 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
4260 if (phba->sli_rev != LPFC_SLI_REV4) {
4261 phba->cfg_fcp_imax = 0;
4265 if (val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) {
4266 phba->cfg_fcp_imax = val;
4270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4271 "3016 fcp_imax: %d out of range, using default\n", val);
4272 phba->cfg_fcp_imax = LPFC_DEF_IMAX;
4277 static DEVICE_ATTR(lpfc_fcp_imax, S_IRUGO | S_IWUSR,
4278 lpfc_fcp_imax_show, lpfc_fcp_imax_store);
4281 * lpfc_state_show - Display current driver CPU affinity
4282 * @dev: class converted to a Scsi_host structure.
4283 * @attr: device attribute, not used.
4284 * @buf: on return contains text describing the state of the link.
4286 * Returns: size of formatted string.
4289 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr,
4292 struct Scsi_Host *shost = class_to_shost(dev);
4293 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4294 struct lpfc_hba *phba = vport->phba;
4295 struct lpfc_vector_map_info *cpup;
4298 if ((phba->sli_rev != LPFC_SLI_REV4) ||
4299 (phba->intr_type != MSIX))
4302 switch (phba->cfg_fcp_cpu_map) {
4304 len += snprintf(buf + len, PAGE_SIZE-len,
4305 "fcp_cpu_map: No mapping (%d)\n",
4306 phba->cfg_fcp_cpu_map);
4309 len += snprintf(buf + len, PAGE_SIZE-len,
4310 "fcp_cpu_map: HBA centric mapping (%d): "
4312 phba->cfg_fcp_cpu_map,
4313 phba->sli4_hba.num_online_cpu);
4316 len += snprintf(buf + len, PAGE_SIZE-len,
4317 "fcp_cpu_map: Driver centric mapping (%d): "
4319 phba->cfg_fcp_cpu_map,
4320 phba->sli4_hba.num_online_cpu);
4324 while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_present_cpu) {
4325 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
4327 /* margin should fit in this and the truncated message */
4328 if (cpup->irq == LPFC_VECTOR_MAP_EMPTY)
4329 len += snprintf(buf + len, PAGE_SIZE-len,
4330 "CPU %02d io_chan %02d "
4331 "physid %d coreid %d\n",
4332 phba->sli4_hba.curr_disp_cpu,
4333 cpup->channel_id, cpup->phys_id,
4336 len += snprintf(buf + len, PAGE_SIZE-len,
4337 "CPU %02d io_chan %02d "
4338 "physid %d coreid %d IRQ %d\n",
4339 phba->sli4_hba.curr_disp_cpu,
4340 cpup->channel_id, cpup->phys_id,
4341 cpup->core_id, cpup->irq);
4343 phba->sli4_hba.curr_disp_cpu++;
4345 /* display max number of CPUs keeping some margin */
4346 if (phba->sli4_hba.curr_disp_cpu <
4347 phba->sli4_hba.num_present_cpu &&
4348 (len >= (PAGE_SIZE - 64))) {
4349 len += snprintf(buf + len, PAGE_SIZE-len, "more...\n");
4354 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_present_cpu)
4355 phba->sli4_hba.curr_disp_cpu = 0;
4361 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors
4362 * @dev: class device that is converted into a Scsi_host.
4363 * @attr: device attribute, not used.
4364 * @buf: one or more lpfc_polling_flags values.
4368 * -EINVAL - Not implemented yet.
4371 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr,
4372 const char *buf, size_t count)
4374 int status = -EINVAL;
4379 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors
4382 # Value range is [0 to 2]. Default value is LPFC_DRIVER_CPU_MAP (2).
4383 # 0 - Do not affinitze IRQ vectors
4384 # 1 - Affintize HBA vectors with respect to each HBA
4385 # (start with CPU0 for each HBA)
4386 # 2 - Affintize HBA vectors with respect to the entire driver
4387 # (round robin thru all CPUs across all HBAs)
4389 static int lpfc_fcp_cpu_map = LPFC_DRIVER_CPU_MAP;
4390 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR);
4391 MODULE_PARM_DESC(lpfc_fcp_cpu_map,
4392 "Defines how to map CPUs to IRQ vectors per HBA");
4395 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable
4396 * @phba: lpfc_hba pointer.
4397 * @val: link speed value.
4400 * If val is in a valid range [0-2], then affinitze the adapter's
4404 * zero if val saved.
4405 * -EINVAL val out of range
4408 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val)
4410 if (phba->sli_rev != LPFC_SLI_REV4) {
4411 phba->cfg_fcp_cpu_map = 0;
4415 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) {
4416 phba->cfg_fcp_cpu_map = val;
4420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4421 "3326 fcp_cpu_map: %d out of range, using default\n",
4423 phba->cfg_fcp_cpu_map = LPFC_DRIVER_CPU_MAP;
4428 static DEVICE_ATTR(lpfc_fcp_cpu_map, S_IRUGO | S_IWUSR,
4429 lpfc_fcp_cpu_map_show, lpfc_fcp_cpu_map_store);
4432 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
4433 # Value range is [2,3]. Default value is 3.
4435 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
4436 "Select Fibre Channel class of service for FCP sequences");
4439 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
4440 # is [0,1]. Default value is 0.
4442 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
4443 "Use ADISC on rediscovery to authenticate FCP devices");
4446 # lpfc_first_burst_size: First burst size to use on the NPorts
4447 # that support first burst.
4448 # Value range is [0,65536]. Default value is 0.
4450 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536,
4451 "First burst size for Targets that support first burst");
4454 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
4455 # depth. Default value is 0. When the value of this parameter is zero the
4456 # SCSI command completion time is not used for controlling I/O queue depth. When
4457 # the parameter is set to a non-zero value, the I/O queue depth is controlled
4458 # to limit the I/O completion time to the parameter value.
4459 # The value is set in milliseconds.
4461 static int lpfc_max_scsicmpl_time;
4462 module_param(lpfc_max_scsicmpl_time, int, S_IRUGO);
4463 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
4464 "Use command completion time to control queue depth");
4465 lpfc_vport_param_show(max_scsicmpl_time);
4466 lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
4468 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
4470 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4471 struct lpfc_nodelist *ndlp, *next_ndlp;
4473 if (val == vport->cfg_max_scsicmpl_time)
4475 if ((val < 0) || (val > 60000))
4477 vport->cfg_max_scsicmpl_time = val;
4479 spin_lock_irq(shost->host_lock);
4480 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4481 if (!NLP_CHK_NODE_ACT(ndlp))
4483 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4485 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4487 spin_unlock_irq(shost->host_lock);
4490 lpfc_vport_param_store(max_scsicmpl_time);
4491 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
4492 lpfc_max_scsicmpl_time_show,
4493 lpfc_max_scsicmpl_time_store);
4496 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
4497 # range is [0,1]. Default value is 0.
4499 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
4502 # lpfc_fcp_io_sched: Determine scheduling algrithmn for issuing FCP cmds
4503 # range is [0,1]. Default value is 0.
4504 # For [0], FCP commands are issued to Work Queues ina round robin fashion.
4505 # For [1], FCP commands are issued to a Work Queue associated with the
4507 # It would be set to 1 by the driver if it's able to set up cpu affinity
4508 # for FCP I/Os through Work Queue associated with the current CPU. Otherwise,
4509 # roundrobin scheduling of FCP I/Os through WQs will be used.
4511 LPFC_ATTR_RW(fcp_io_sched, 0, 0, 1, "Determine scheduling algorithm for "
4512 "issuing commands [0] - Round Robin, [1] - Current CPU");
4515 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior
4516 # range is [0,1]. Default value is 0.
4517 # For [0], bus reset issues target reset to ALL devices
4518 # For [1], bus reset issues target reset to non-FCP2 devices
4520 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for "
4521 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset");
4525 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
4526 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
4527 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
4528 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
4529 # cr_delay is set to 0.
4531 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
4532 "interrupt response is generated");
4534 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
4535 "interrupt response is generated");
4538 # lpfc_multi_ring_support: Determines how many rings to spread available
4539 # cmd/rsp IOCB entries across.
4540 # Value range is [1,2]. Default value is 1.
4542 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
4543 "SLI rings to spread IOCB entries across");
4546 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
4547 # identifies what rctl value to configure the additional ring for.
4548 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
4550 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
4551 255, "Identifies RCTL for additional ring configuration");
4554 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
4555 # identifies what type value to configure the additional ring for.
4556 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
4558 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
4559 255, "Identifies TYPE for additional ring configuration");
4562 # lpfc_fdmi_on: controls FDMI support.
4563 # 0 = no FDMI support
4564 # 1 = support FDMI without attribute of hostname
4565 # 2 = support FDMI with attribute of hostname
4566 # Value range [0,2]. Default value is 0.
4568 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
4571 # Specifies the maximum number of ELS cmds we can have outstanding (for
4572 # discovery). Value range is [1,64]. Default value = 32.
4574 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
4575 "during discovery");
4578 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that
4579 # will be scanned by the SCSI midlayer when sequential scanning is
4580 # used; and is also the highest LUN ID allowed when the SCSI midlayer
4581 # parses REPORT_LUN responses. The lpfc driver has no LUN count or
4582 # LUN ID limit, but the SCSI midlayer requires this field for the uses
4583 # above. The lpfc driver limits the default value to 255 for two reasons.
4584 # As it bounds the sequential scan loop, scanning for thousands of luns
4585 # on a target can take minutes of wall clock time. Additionally,
4586 # there are FC targets, such as JBODs, that only recognize 8-bits of
4587 # LUN ID. When they receive a value greater than 8 bits, they chop off
4588 # the high order bits. In other words, they see LUN IDs 0, 256, 512,
4589 # and so on all as LUN ID 0. This causes the linux kernel, which sees
4590 # valid responses at each of the LUN IDs, to believe there are multiple
4591 # devices present, when in fact, there is only 1.
4592 # A customer that is aware of their target behaviors, and the results as
4593 # indicated above, is welcome to increase the lpfc_max_luns value.
4594 # As mentioned, this value is not used by the lpfc driver, only the
4596 # Value range is [0,65535]. Default value is 255.
4597 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
4599 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID");
4602 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
4603 # Value range is [1,255], default value is 10.
4605 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
4606 "Milliseconds driver will wait between polling FCP ring");
4609 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands
4610 # to complete in seconds. Value range is [5,180], default value is 60.
4612 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180,
4613 "Maximum time to wait for task management commands to complete");
4615 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
4616 # support this feature
4619 # 2 = MSI-X enabled (default)
4620 # Value range is [0,2]. Default value is 2.
4622 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
4623 "MSI-X (2), if possible");
4626 # lpfc_fcp_io_channel: Set the number of FCP EQ/CQ/WQ IO channels
4628 # Value range is [1,7]. Default value is 4.
4630 LPFC_ATTR_R(fcp_io_channel, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
4631 LPFC_FCP_IO_CHAN_MAX,
4632 "Set the number of FCP I/O channels");
4635 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
4636 # 0 = HBA resets disabled
4637 # 1 = HBA resets enabled (default)
4638 # Value range is [0,1]. Default value is 1.
4640 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
4643 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
4644 # 0 = HBA Heartbeat disabled
4645 # 1 = HBA Heartbeat enabled (default)
4646 # Value range is [0,1]. Default value is 1.
4648 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
4651 # lpfc_EnableXLane: Enable Express Lane Feature
4652 # 0x0 Express Lane Feature disabled
4653 # 0x1 Express Lane Feature enabled
4654 # Value range is [0,1]. Default value is 0.
4656 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
4659 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature
4660 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits)
4661 # Value range is [0x0,0x7f]. Default value is 0
4663 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
4666 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
4667 # 0 = BlockGuard disabled (default)
4668 # 1 = BlockGuard enabled
4669 # Value range is [0,1]. Default value is 0.
4671 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
4674 # lpfc_fcp_look_ahead: Look ahead for completions in FCP start routine
4675 # 0 = disabled (default)
4677 # Value range is [0,1]. Default value is 0.
4679 # This feature in under investigation and may be supported in the future.
4681 unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF;
4685 # - Bit mask of host protection capabilities used to register with the
4687 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
4688 # - Allows you to ultimately specify which profiles to use
4689 # - Default will result in registering capabilities for all profiles.
4690 # - SHOST_DIF_TYPE1_PROTECTION 1
4691 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection
4692 # - SHOST_DIX_TYPE0_PROTECTION 8
4693 # HBA supports DIX Type 0: Host to HBA protection only
4694 # - SHOST_DIX_TYPE1_PROTECTION 16
4695 # HBA supports DIX Type 1: Host to HBA Type 1 protection
4698 unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION |
4699 SHOST_DIX_TYPE0_PROTECTION |
4700 SHOST_DIX_TYPE1_PROTECTION;
4702 module_param(lpfc_prot_mask, uint, S_IRUGO);
4703 MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
4706 # lpfc_prot_guard: i
4707 # - Bit mask of protection guard types to register with the SCSI mid-layer
4708 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum
4709 # - Allows you to ultimately specify which profiles to use
4710 # - Default will result in registering capabilities for all guard types
4713 unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
4714 module_param(lpfc_prot_guard, byte, S_IRUGO);
4715 MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
4718 * Delay initial NPort discovery when Clean Address bit is cleared in
4719 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
4720 * This parameter can have value 0 or 1.
4721 * When this parameter is set to 0, no delay is added to the initial
4723 * When this parameter is set to non-zero value, initial Nport discovery is
4724 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
4725 * accept and FCID/Fabric name/Fabric portname is changed.
4726 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
4727 * when Clean Address bit is cleared in FLOGI/FDISC
4728 * accept and FCID/Fabric name/Fabric portname is changed.
4729 * Default value is 0.
4731 int lpfc_delay_discovery;
4732 module_param(lpfc_delay_discovery, int, S_IRUGO);
4733 MODULE_PARM_DESC(lpfc_delay_discovery,
4734 "Delay NPort discovery when Clean Address bit is cleared. "
4735 "Allowed values: 0,1.");
4738 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
4739 * This value can be set to values between 64 and 4096. The default value is
4740 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
4741 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
4742 * Because of the additional overhead involved in setting up T10-DIF,
4743 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4
4744 * and will be limited to 512 if BlockGuard is enabled under SLI3.
4746 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
4747 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
4750 * This parameter will be depricated, the driver cannot limit the
4751 * protection data s/g list.
4753 LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT,
4754 LPFC_DEFAULT_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT,
4755 "Max Protection Scatter Gather Segment Count");
4757 struct device_attribute *lpfc_hba_attrs[] = {
4759 &dev_attr_bg_guard_err,
4760 &dev_attr_bg_apptag_err,
4761 &dev_attr_bg_reftag_err,
4763 &dev_attr_serialnum,
4764 &dev_attr_modeldesc,
4765 &dev_attr_modelname,
4766 &dev_attr_programtype,
4770 &dev_attr_option_rom_version,
4771 &dev_attr_link_state,
4772 &dev_attr_num_discovered_ports,
4773 &dev_attr_menlo_mgmt_mode,
4774 &dev_attr_lpfc_drvr_version,
4775 &dev_attr_lpfc_enable_fip,
4776 &dev_attr_lpfc_temp_sensor,
4777 &dev_attr_lpfc_log_verbose,
4778 &dev_attr_lpfc_lun_queue_depth,
4779 &dev_attr_lpfc_tgt_queue_depth,
4780 &dev_attr_lpfc_hba_queue_depth,
4781 &dev_attr_lpfc_peer_port_login,
4782 &dev_attr_lpfc_nodev_tmo,
4783 &dev_attr_lpfc_devloss_tmo,
4784 &dev_attr_lpfc_fcp_class,
4785 &dev_attr_lpfc_use_adisc,
4786 &dev_attr_lpfc_first_burst_size,
4787 &dev_attr_lpfc_ack0,
4788 &dev_attr_lpfc_topology,
4789 &dev_attr_lpfc_scan_down,
4790 &dev_attr_lpfc_link_speed,
4791 &dev_attr_lpfc_fcp_io_sched,
4792 &dev_attr_lpfc_fcp2_no_tgt_reset,
4793 &dev_attr_lpfc_cr_delay,
4794 &dev_attr_lpfc_cr_count,
4795 &dev_attr_lpfc_multi_ring_support,
4796 &dev_attr_lpfc_multi_ring_rctl,
4797 &dev_attr_lpfc_multi_ring_type,
4798 &dev_attr_lpfc_fdmi_on,
4799 &dev_attr_lpfc_max_luns,
4800 &dev_attr_lpfc_enable_npiv,
4801 &dev_attr_lpfc_fcf_failover_policy,
4802 &dev_attr_lpfc_enable_rrq,
4803 &dev_attr_nport_evt_cnt,
4804 &dev_attr_board_mode,
4811 &dev_attr_npiv_info,
4812 &dev_attr_issue_reset,
4813 &dev_attr_lpfc_poll,
4814 &dev_attr_lpfc_poll_tmo,
4815 &dev_attr_lpfc_task_mgmt_tmo,
4816 &dev_attr_lpfc_use_msi,
4817 &dev_attr_lpfc_fcp_imax,
4818 &dev_attr_lpfc_fcp_cpu_map,
4819 &dev_attr_lpfc_fcp_io_channel,
4820 &dev_attr_lpfc_enable_bg,
4821 &dev_attr_lpfc_soft_wwnn,
4822 &dev_attr_lpfc_soft_wwpn,
4823 &dev_attr_lpfc_soft_wwn_enable,
4824 &dev_attr_lpfc_enable_hba_reset,
4825 &dev_attr_lpfc_enable_hba_heartbeat,
4826 &dev_attr_lpfc_EnableXLane,
4827 &dev_attr_lpfc_XLanePriority,
4828 &dev_attr_lpfc_xlane_lun,
4829 &dev_attr_lpfc_xlane_tgt,
4830 &dev_attr_lpfc_xlane_vpt,
4831 &dev_attr_lpfc_xlane_lun_state,
4832 &dev_attr_lpfc_xlane_lun_status,
4833 &dev_attr_lpfc_sg_seg_cnt,
4834 &dev_attr_lpfc_max_scsicmpl_time,
4835 &dev_attr_lpfc_stat_data_ctrl,
4836 &dev_attr_lpfc_prot_sg_seg_cnt,
4837 &dev_attr_lpfc_aer_support,
4838 &dev_attr_lpfc_aer_state_cleanup,
4839 &dev_attr_lpfc_sriov_nr_virtfn,
4840 &dev_attr_lpfc_req_fw_upgrade,
4841 &dev_attr_lpfc_suppress_link_up,
4842 &dev_attr_lpfc_iocb_cnt,
4845 &dev_attr_txcmplq_hw,
4846 &dev_attr_lpfc_fips_level,
4847 &dev_attr_lpfc_fips_rev,
4849 &dev_attr_lpfc_sriov_hw_max_virtfn,
4851 &dev_attr_lpfc_xlane_supported,
4855 struct device_attribute *lpfc_vport_attrs[] = {
4857 &dev_attr_link_state,
4858 &dev_attr_num_discovered_ports,
4859 &dev_attr_lpfc_drvr_version,
4860 &dev_attr_lpfc_log_verbose,
4861 &dev_attr_lpfc_lun_queue_depth,
4862 &dev_attr_lpfc_tgt_queue_depth,
4863 &dev_attr_lpfc_nodev_tmo,
4864 &dev_attr_lpfc_devloss_tmo,
4865 &dev_attr_lpfc_hba_queue_depth,
4866 &dev_attr_lpfc_peer_port_login,
4867 &dev_attr_lpfc_restrict_login,
4868 &dev_attr_lpfc_fcp_class,
4869 &dev_attr_lpfc_use_adisc,
4870 &dev_attr_lpfc_first_burst_size,
4871 &dev_attr_lpfc_fdmi_on,
4872 &dev_attr_lpfc_max_luns,
4873 &dev_attr_nport_evt_cnt,
4874 &dev_attr_npiv_info,
4875 &dev_attr_lpfc_enable_da_id,
4876 &dev_attr_lpfc_max_scsicmpl_time,
4877 &dev_attr_lpfc_stat_data_ctrl,
4878 &dev_attr_lpfc_static_vport,
4879 &dev_attr_lpfc_fips_level,
4880 &dev_attr_lpfc_fips_rev,
4885 * sysfs_ctlreg_write - Write method for writing to ctlreg
4886 * @filp: open sysfs file
4887 * @kobj: kernel kobject that contains the kernel class device.
4888 * @bin_attr: kernel attributes passed to us.
4889 * @buf: contains the data to be written to the adapter IOREG space.
4890 * @off: offset into buffer to beginning of data.
4891 * @count: bytes to transfer.
4894 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
4895 * Uses the adapter io control registers to send buf contents to the adapter.
4898 * -ERANGE off and count combo out of range
4899 * -EINVAL off, count or buff address invalid
4900 * -EPERM adapter is offline
4901 * value of count, buf contents written
4904 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
4905 struct bin_attribute *bin_attr,
4906 char *buf, loff_t off, size_t count)
4909 struct device *dev = container_of(kobj, struct device, kobj);
4910 struct Scsi_Host *shost = class_to_shost(dev);
4911 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4912 struct lpfc_hba *phba = vport->phba;
4914 if (phba->sli_rev >= LPFC_SLI_REV4)
4917 if ((off + count) > FF_REG_AREA_SIZE)
4920 if (count <= LPFC_REG_WRITE_KEY_SIZE)
4923 if (off % 4 || count % 4 || (unsigned long)buf % 4)
4926 /* This is to protect HBA registers from accidental writes. */
4927 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE))
4930 if (!(vport->fc_flag & FC_OFFLINE_MODE))
4933 spin_lock_irq(&phba->hbalock);
4934 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE;
4935 buf_off += sizeof(uint32_t))
4936 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)),
4937 phba->ctrl_regs_memmap_p + off + buf_off);
4939 spin_unlock_irq(&phba->hbalock);
4945 * sysfs_ctlreg_read - Read method for reading from ctlreg
4946 * @filp: open sysfs file
4947 * @kobj: kernel kobject that contains the kernel class device.
4948 * @bin_attr: kernel attributes passed to us.
4949 * @buf: if successful contains the data from the adapter IOREG space.
4950 * @off: offset into buffer to beginning of data.
4951 * @count: bytes to transfer.
4954 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
4955 * Uses the adapter io control registers to read data into buf.
4958 * -ERANGE off and count combo out of range
4959 * -EINVAL off, count or buff address invalid
4960 * value of count, buf contents read
4963 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
4964 struct bin_attribute *bin_attr,
4965 char *buf, loff_t off, size_t count)
4969 struct device *dev = container_of(kobj, struct device, kobj);
4970 struct Scsi_Host *shost = class_to_shost(dev);
4971 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4972 struct lpfc_hba *phba = vport->phba;
4974 if (phba->sli_rev >= LPFC_SLI_REV4)
4977 if (off > FF_REG_AREA_SIZE)
4980 if ((off + count) > FF_REG_AREA_SIZE)
4981 count = FF_REG_AREA_SIZE - off;
4983 if (count == 0) return 0;
4985 if (off % 4 || count % 4 || (unsigned long)buf % 4)
4988 spin_lock_irq(&phba->hbalock);
4990 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
4991 tmp_ptr = (uint32_t *)(buf + buf_off);
4992 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
4995 spin_unlock_irq(&phba->hbalock);
5000 static struct bin_attribute sysfs_ctlreg_attr = {
5003 .mode = S_IRUSR | S_IWUSR,
5006 .read = sysfs_ctlreg_read,
5007 .write = sysfs_ctlreg_write,
5011 * sysfs_mbox_write - Write method for writing information via mbox
5012 * @filp: open sysfs file
5013 * @kobj: kernel kobject that contains the kernel class device.
5014 * @bin_attr: kernel attributes passed to us.
5015 * @buf: contains the data to be written to sysfs mbox.
5016 * @off: offset into buffer to beginning of data.
5017 * @count: bytes to transfer.
5020 * Deprecated function. All mailbox access from user space is performed via the
5024 * -EPERM operation not permitted
5027 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
5028 struct bin_attribute *bin_attr,
5029 char *buf, loff_t off, size_t count)
5035 * sysfs_mbox_read - Read method for reading information via mbox
5036 * @filp: open sysfs file
5037 * @kobj: kernel kobject that contains the kernel class device.
5038 * @bin_attr: kernel attributes passed to us.
5039 * @buf: contains the data to be read from sysfs mbox.
5040 * @off: offset into buffer to beginning of data.
5041 * @count: bytes to transfer.
5044 * Deprecated function. All mailbox access from user space is performed via the
5048 * -EPERM operation not permitted
5051 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
5052 struct bin_attribute *bin_attr,
5053 char *buf, loff_t off, size_t count)
5058 static struct bin_attribute sysfs_mbox_attr = {
5061 .mode = S_IRUSR | S_IWUSR,
5063 .size = MAILBOX_SYSFS_MAX,
5064 .read = sysfs_mbox_read,
5065 .write = sysfs_mbox_write,
5069 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
5070 * @vport: address of lpfc vport structure.
5074 * error return code from sysfs_create_bin_file()
5077 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
5079 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5082 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5083 &sysfs_drvr_stat_data_attr);
5085 /* Virtual ports do not need ctrl_reg and mbox */
5086 if (error || vport->port_type == LPFC_NPIV_PORT)
5089 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5090 &sysfs_ctlreg_attr);
5092 goto out_remove_stat_attr;
5094 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5097 goto out_remove_ctlreg_attr;
5100 out_remove_ctlreg_attr:
5101 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
5102 out_remove_stat_attr:
5103 sysfs_remove_bin_file(&shost->shost_dev.kobj,
5104 &sysfs_drvr_stat_data_attr);
5110 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
5111 * @vport: address of lpfc vport structure.
5114 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
5116 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5117 sysfs_remove_bin_file(&shost->shost_dev.kobj,
5118 &sysfs_drvr_stat_data_attr);
5119 /* Virtual ports do not need ctrl_reg and mbox */
5120 if (vport->port_type == LPFC_NPIV_PORT)
5122 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
5123 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
5128 * Dynamic FC Host Attributes Support
5132 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
5133 * @shost: kernel scsi host pointer.
5136 lpfc_get_host_port_id(struct Scsi_Host *shost)
5138 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5140 /* note: fc_myDID already in cpu endianness */
5141 fc_host_port_id(shost) = vport->fc_myDID;
5145 * lpfc_get_host_port_type - Set the value of the scsi host port type
5146 * @shost: kernel scsi host pointer.
5149 lpfc_get_host_port_type(struct Scsi_Host *shost)
5151 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5152 struct lpfc_hba *phba = vport->phba;
5154 spin_lock_irq(shost->host_lock);
5156 if (vport->port_type == LPFC_NPIV_PORT) {
5157 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
5158 } else if (lpfc_is_link_up(phba)) {
5159 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5160 if (vport->fc_flag & FC_PUBLIC_LOOP)
5161 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
5163 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
5165 if (vport->fc_flag & FC_FABRIC)
5166 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
5168 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
5171 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
5173 spin_unlock_irq(shost->host_lock);
5177 * lpfc_get_host_port_state - Set the value of the scsi host port state
5178 * @shost: kernel scsi host pointer.
5181 lpfc_get_host_port_state(struct Scsi_Host *shost)
5183 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5184 struct lpfc_hba *phba = vport->phba;
5186 spin_lock_irq(shost->host_lock);
5188 if (vport->fc_flag & FC_OFFLINE_MODE)
5189 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
5191 switch (phba->link_state) {
5192 case LPFC_LINK_UNKNOWN:
5193 case LPFC_LINK_DOWN:
5194 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
5198 case LPFC_HBA_READY:
5199 /* Links up, reports port state accordingly */
5200 if (vport->port_state < LPFC_VPORT_READY)
5201 fc_host_port_state(shost) =
5202 FC_PORTSTATE_BYPASSED;
5204 fc_host_port_state(shost) =
5205 FC_PORTSTATE_ONLINE;
5207 case LPFC_HBA_ERROR:
5208 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
5211 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
5216 spin_unlock_irq(shost->host_lock);
5220 * lpfc_get_host_speed - Set the value of the scsi host speed
5221 * @shost: kernel scsi host pointer.
5224 lpfc_get_host_speed(struct Scsi_Host *shost)
5226 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5227 struct lpfc_hba *phba = vport->phba;
5229 spin_lock_irq(shost->host_lock);
5231 if (lpfc_is_link_up(phba)) {
5232 switch(phba->fc_linkspeed) {
5233 case LPFC_LINK_SPEED_1GHZ:
5234 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
5236 case LPFC_LINK_SPEED_2GHZ:
5237 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
5239 case LPFC_LINK_SPEED_4GHZ:
5240 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
5242 case LPFC_LINK_SPEED_8GHZ:
5243 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
5245 case LPFC_LINK_SPEED_10GHZ:
5246 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
5248 case LPFC_LINK_SPEED_16GHZ:
5249 fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
5252 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
5256 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
5258 spin_unlock_irq(shost->host_lock);
5262 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
5263 * @shost: kernel scsi host pointer.
5266 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
5268 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5269 struct lpfc_hba *phba = vport->phba;
5272 spin_lock_irq(shost->host_lock);
5274 if ((vport->port_state > LPFC_FLOGI) &&
5275 ((vport->fc_flag & FC_FABRIC) ||
5276 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
5277 (vport->fc_flag & FC_PUBLIC_LOOP))))
5278 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
5280 /* fabric is local port if there is no F/FL_Port */
5283 spin_unlock_irq(shost->host_lock);
5285 fc_host_fabric_name(shost) = node_name;
5289 * lpfc_get_stats - Return statistical information about the adapter
5290 * @shost: kernel scsi host pointer.
5293 * NULL on error for link down, no mbox pool, sli2 active,
5294 * management not allowed, memory allocation error, or mbox error.
5298 * address of the adapter host statistics
5300 static struct fc_host_statistics *
5301 lpfc_get_stats(struct Scsi_Host *shost)
5303 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5304 struct lpfc_hba *phba = vport->phba;
5305 struct lpfc_sli *psli = &phba->sli;
5306 struct fc_host_statistics *hs = &phba->link_stats;
5307 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
5308 LPFC_MBOXQ_t *pmboxq;
5310 unsigned long seconds;
5314 * prevent udev from issuing mailbox commands until the port is
5317 if (phba->link_state < LPFC_LINK_DOWN ||
5318 !phba->mbox_mem_pool ||
5319 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
5322 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
5325 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5328 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
5330 pmb = &pmboxq->u.mb;
5331 pmb->mbxCommand = MBX_READ_STATUS;
5332 pmb->mbxOwner = OWN_HOST;
5333 pmboxq->context1 = NULL;
5334 pmboxq->vport = vport;
5336 if (vport->fc_flag & FC_OFFLINE_MODE)
5337 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5339 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5341 if (rc != MBX_SUCCESS) {
5342 if (rc != MBX_TIMEOUT)
5343 mempool_free(pmboxq, phba->mbox_mem_pool);
5347 memset(hs, 0, sizeof (struct fc_host_statistics));
5349 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
5351 * The MBX_READ_STATUS returns tx_k_bytes which has to
5352 * converted to words
5354 hs->tx_words = (uint64_t)
5355 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt
5357 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
5358 hs->rx_words = (uint64_t)
5359 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt
5362 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
5363 pmb->mbxCommand = MBX_READ_LNK_STAT;
5364 pmb->mbxOwner = OWN_HOST;
5365 pmboxq->context1 = NULL;
5366 pmboxq->vport = vport;
5368 if (vport->fc_flag & FC_OFFLINE_MODE)
5369 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5371 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5373 if (rc != MBX_SUCCESS) {
5374 if (rc != MBX_TIMEOUT)
5375 mempool_free(pmboxq, phba->mbox_mem_pool);
5379 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
5380 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
5381 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
5382 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
5383 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
5384 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
5385 hs->error_frames = pmb->un.varRdLnk.crcCnt;
5387 hs->link_failure_count -= lso->link_failure_count;
5388 hs->loss_of_sync_count -= lso->loss_of_sync_count;
5389 hs->loss_of_signal_count -= lso->loss_of_signal_count;
5390 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
5391 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
5392 hs->invalid_crc_count -= lso->invalid_crc_count;
5393 hs->error_frames -= lso->error_frames;
5395 if (phba->hba_flag & HBA_FCOE_MODE) {
5397 hs->nos_count = (phba->link_events >> 1);
5398 hs->nos_count -= lso->link_events;
5399 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5400 hs->lip_count = (phba->fc_eventTag >> 1);
5401 hs->lip_count -= lso->link_events;
5405 hs->nos_count = (phba->fc_eventTag >> 1);
5406 hs->nos_count -= lso->link_events;
5409 hs->dumped_frames = -1;
5411 seconds = get_seconds();
5412 if (seconds < psli->stats_start)
5413 hs->seconds_since_last_reset = seconds +
5414 ((unsigned long)-1 - psli->stats_start);
5416 hs->seconds_since_last_reset = seconds - psli->stats_start;
5418 mempool_free(pmboxq, phba->mbox_mem_pool);
5424 * lpfc_reset_stats - Copy the adapter link stats information
5425 * @shost: kernel scsi host pointer.
5428 lpfc_reset_stats(struct Scsi_Host *shost)
5430 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5431 struct lpfc_hba *phba = vport->phba;
5432 struct lpfc_sli *psli = &phba->sli;
5433 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
5434 LPFC_MBOXQ_t *pmboxq;
5438 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
5441 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5444 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
5446 pmb = &pmboxq->u.mb;
5447 pmb->mbxCommand = MBX_READ_STATUS;
5448 pmb->mbxOwner = OWN_HOST;
5449 pmb->un.varWords[0] = 0x1; /* reset request */
5450 pmboxq->context1 = NULL;
5451 pmboxq->vport = vport;
5453 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
5454 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
5455 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5457 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5459 if (rc != MBX_SUCCESS) {
5460 if (rc != MBX_TIMEOUT)
5461 mempool_free(pmboxq, phba->mbox_mem_pool);
5465 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
5466 pmb->mbxCommand = MBX_READ_LNK_STAT;
5467 pmb->mbxOwner = OWN_HOST;
5468 pmboxq->context1 = NULL;
5469 pmboxq->vport = vport;
5471 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
5472 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
5473 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5475 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5477 if (rc != MBX_SUCCESS) {
5478 if (rc != MBX_TIMEOUT)
5479 mempool_free( pmboxq, phba->mbox_mem_pool);
5483 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
5484 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
5485 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
5486 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
5487 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
5488 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
5489 lso->error_frames = pmb->un.varRdLnk.crcCnt;
5490 if (phba->hba_flag & HBA_FCOE_MODE)
5491 lso->link_events = (phba->link_events >> 1);
5493 lso->link_events = (phba->fc_eventTag >> 1);
5495 psli->stats_start = get_seconds();
5497 mempool_free(pmboxq, phba->mbox_mem_pool);
5503 * The LPFC driver treats linkdown handling as target loss events so there
5504 * are no sysfs handlers for link_down_tmo.
5508 * lpfc_get_node_by_target - Return the nodelist for a target
5509 * @starget: kernel scsi target pointer.
5512 * address of the node list if found
5513 * NULL target not found
5515 static struct lpfc_nodelist *
5516 lpfc_get_node_by_target(struct scsi_target *starget)
5518 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
5519 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5520 struct lpfc_nodelist *ndlp;
5522 spin_lock_irq(shost->host_lock);
5523 /* Search for this, mapped, target ID */
5524 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5525 if (NLP_CHK_NODE_ACT(ndlp) &&
5526 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
5527 starget->id == ndlp->nlp_sid) {
5528 spin_unlock_irq(shost->host_lock);
5532 spin_unlock_irq(shost->host_lock);
5537 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
5538 * @starget: kernel scsi target pointer.
5541 lpfc_get_starget_port_id(struct scsi_target *starget)
5543 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5545 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
5549 * lpfc_get_starget_node_name - Set the target node name
5550 * @starget: kernel scsi target pointer.
5552 * Description: Set the target node name to the ndlp node name wwn or zero.
5555 lpfc_get_starget_node_name(struct scsi_target *starget)
5557 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5559 fc_starget_node_name(starget) =
5560 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
5564 * lpfc_get_starget_port_name - Set the target port name
5565 * @starget: kernel scsi target pointer.
5567 * Description: set the target port name to the ndlp port name wwn or zero.
5570 lpfc_get_starget_port_name(struct scsi_target *starget)
5572 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5574 fc_starget_port_name(starget) =
5575 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
5579 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
5580 * @rport: fc rport address.
5581 * @timeout: new value for dev loss tmo.
5584 * If timeout is non zero set the dev_loss_tmo to timeout, else set
5585 * dev_loss_tmo to one.
5588 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
5591 rport->dev_loss_tmo = timeout;
5593 rport->dev_loss_tmo = 1;
5597 * lpfc_rport_show_function - Return rport target information
5600 * Macro that uses field to generate a function with the name lpfc_show_rport_
5602 * lpfc_show_rport_##field: returns the bytes formatted in buf
5603 * @cdev: class converted to an fc_rport.
5604 * @buf: on return contains the target_field or zero.
5606 * Returns: size of formatted string.
5608 #define lpfc_rport_show_function(field, format_string, sz, cast) \
5610 lpfc_show_rport_##field (struct device *dev, \
5611 struct device_attribute *attr, \
5614 struct fc_rport *rport = transport_class_to_rport(dev); \
5615 struct lpfc_rport_data *rdata = rport->hostdata; \
5616 return snprintf(buf, sz, format_string, \
5617 (rdata->target) ? cast rdata->target->field : 0); \
5620 #define lpfc_rport_rd_attr(field, format_string, sz) \
5621 lpfc_rport_show_function(field, format_string, sz, ) \
5622 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
5625 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
5626 * @fc_vport: The fc_vport who's symbolic name has been changed.
5629 * This function is called by the transport after the @fc_vport's symbolic name
5630 * has been changed. This function re-registers the symbolic name with the
5631 * switch to propagate the change into the fabric if the vport is active.
5634 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
5636 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
5638 if (vport->port_state == LPFC_VPORT_READY)
5639 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
5643 * lpfc_hba_log_verbose_init - Set hba's log verbose level
5644 * @phba: Pointer to lpfc_hba struct.
5646 * This function is called by the lpfc_get_cfgparam() routine to set the
5647 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
5648 * log message according to the module's lpfc_log_verbose parameter setting
5649 * before hba port or vport created.
5652 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
5654 phba->cfg_log_verbose = verbose;
5657 struct fc_function_template lpfc_transport_functions = {
5658 /* fixed attributes the driver supports */
5659 .show_host_node_name = 1,
5660 .show_host_port_name = 1,
5661 .show_host_supported_classes = 1,
5662 .show_host_supported_fc4s = 1,
5663 .show_host_supported_speeds = 1,
5664 .show_host_maxframe_size = 1,
5665 .show_host_symbolic_name = 1,
5667 /* dynamic attributes the driver supports */
5668 .get_host_port_id = lpfc_get_host_port_id,
5669 .show_host_port_id = 1,
5671 .get_host_port_type = lpfc_get_host_port_type,
5672 .show_host_port_type = 1,
5674 .get_host_port_state = lpfc_get_host_port_state,
5675 .show_host_port_state = 1,
5677 /* active_fc4s is shown but doesn't change (thus no get function) */
5678 .show_host_active_fc4s = 1,
5680 .get_host_speed = lpfc_get_host_speed,
5681 .show_host_speed = 1,
5683 .get_host_fabric_name = lpfc_get_host_fabric_name,
5684 .show_host_fabric_name = 1,
5687 * The LPFC driver treats linkdown handling as target loss events
5688 * so there are no sysfs handlers for link_down_tmo.
5691 .get_fc_host_stats = lpfc_get_stats,
5692 .reset_fc_host_stats = lpfc_reset_stats,
5694 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
5695 .show_rport_maxframe_size = 1,
5696 .show_rport_supported_classes = 1,
5698 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
5699 .show_rport_dev_loss_tmo = 1,
5701 .get_starget_port_id = lpfc_get_starget_port_id,
5702 .show_starget_port_id = 1,
5704 .get_starget_node_name = lpfc_get_starget_node_name,
5705 .show_starget_node_name = 1,
5707 .get_starget_port_name = lpfc_get_starget_port_name,
5708 .show_starget_port_name = 1,
5710 .issue_fc_host_lip = lpfc_issue_lip,
5711 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
5712 .terminate_rport_io = lpfc_terminate_rport_io,
5714 .dd_fcvport_size = sizeof(struct lpfc_vport *),
5716 .vport_disable = lpfc_vport_disable,
5718 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
5720 .bsg_request = lpfc_bsg_request,
5721 .bsg_timeout = lpfc_bsg_timeout,
5724 struct fc_function_template lpfc_vport_transport_functions = {
5725 /* fixed attributes the driver supports */
5726 .show_host_node_name = 1,
5727 .show_host_port_name = 1,
5728 .show_host_supported_classes = 1,
5729 .show_host_supported_fc4s = 1,
5730 .show_host_supported_speeds = 1,
5731 .show_host_maxframe_size = 1,
5732 .show_host_symbolic_name = 1,
5734 /* dynamic attributes the driver supports */
5735 .get_host_port_id = lpfc_get_host_port_id,
5736 .show_host_port_id = 1,
5738 .get_host_port_type = lpfc_get_host_port_type,
5739 .show_host_port_type = 1,
5741 .get_host_port_state = lpfc_get_host_port_state,
5742 .show_host_port_state = 1,
5744 /* active_fc4s is shown but doesn't change (thus no get function) */
5745 .show_host_active_fc4s = 1,
5747 .get_host_speed = lpfc_get_host_speed,
5748 .show_host_speed = 1,
5750 .get_host_fabric_name = lpfc_get_host_fabric_name,
5751 .show_host_fabric_name = 1,
5754 * The LPFC driver treats linkdown handling as target loss events
5755 * so there are no sysfs handlers for link_down_tmo.
5758 .get_fc_host_stats = lpfc_get_stats,
5759 .reset_fc_host_stats = lpfc_reset_stats,
5761 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
5762 .show_rport_maxframe_size = 1,
5763 .show_rport_supported_classes = 1,
5765 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
5766 .show_rport_dev_loss_tmo = 1,
5768 .get_starget_port_id = lpfc_get_starget_port_id,
5769 .show_starget_port_id = 1,
5771 .get_starget_node_name = lpfc_get_starget_node_name,
5772 .show_starget_node_name = 1,
5774 .get_starget_port_name = lpfc_get_starget_port_name,
5775 .show_starget_port_name = 1,
5777 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
5778 .terminate_rport_io = lpfc_terminate_rport_io,
5780 .vport_disable = lpfc_vport_disable,
5782 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
5786 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
5787 * @phba: lpfc_hba pointer.
5790 lpfc_get_cfgparam(struct lpfc_hba *phba)
5792 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched);
5793 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset);
5794 lpfc_cr_delay_init(phba, lpfc_cr_delay);
5795 lpfc_cr_count_init(phba, lpfc_cr_count);
5796 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
5797 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
5798 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
5799 lpfc_ack0_init(phba, lpfc_ack0);
5800 lpfc_topology_init(phba, lpfc_topology);
5801 lpfc_link_speed_init(phba, lpfc_link_speed);
5802 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
5803 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo);
5804 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
5805 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
5806 lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
5807 lpfc_use_msi_init(phba, lpfc_use_msi);
5808 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
5809 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map);
5810 lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel);
5811 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
5812 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
5813 lpfc_EnableXLane_init(phba, lpfc_EnableXLane);
5814 if (phba->sli_rev != LPFC_SLI_REV4)
5815 phba->cfg_EnableXLane = 0;
5816 lpfc_XLanePriority_init(phba, lpfc_XLanePriority);
5817 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t)));
5818 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t)));
5819 phba->cfg_oas_lun_state = 0;
5820 phba->cfg_oas_lun_status = 0;
5821 phba->cfg_oas_flags = 0;
5822 lpfc_enable_bg_init(phba, lpfc_enable_bg);
5823 if (phba->sli_rev == LPFC_SLI_REV4)
5826 phba->cfg_poll = lpfc_poll;
5827 phba->cfg_soft_wwnn = 0L;
5828 phba->cfg_soft_wwpn = 0L;
5829 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
5830 lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
5831 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
5832 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
5833 lpfc_aer_support_init(phba, lpfc_aer_support);
5834 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
5835 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade);
5836 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
5837 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
5838 phba->cfg_enable_dss = 1;
5843 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
5844 * @vport: lpfc_vport pointer.
5847 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
5849 lpfc_log_verbose_init(vport, lpfc_log_verbose);
5850 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
5851 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
5852 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
5853 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
5854 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
5855 lpfc_restrict_login_init(vport, lpfc_restrict_login);
5856 lpfc_fcp_class_init(vport, lpfc_fcp_class);
5857 lpfc_use_adisc_init(vport, lpfc_use_adisc);
5858 lpfc_first_burst_size_init(vport, lpfc_first_burst_size);
5859 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
5860 lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
5861 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
5862 lpfc_max_luns_init(vport, lpfc_max_luns);
5863 lpfc_scan_down_init(vport, lpfc_scan_down);
5864 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);