1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2013 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 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
927 /* wait for the device to be quiesced before firmware reset */
930 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
931 LPFC_CTL_PDEV_CTL_OFFSET);
933 if (opcode == LPFC_FW_DUMP)
934 reg_val |= LPFC_FW_DUMP_REQUEST;
935 else if (opcode == LPFC_FW_RESET)
936 reg_val |= LPFC_CTL_PDEV_CTL_FRST;
937 else if (opcode == LPFC_DV_RESET)
938 reg_val |= LPFC_CTL_PDEV_CTL_DRST;
940 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
941 LPFC_CTL_PDEV_CTL_OFFSET);
943 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
945 /* delay driver action following IF_TYPE_2 reset */
946 rc = lpfc_sli4_pdev_status_reg_wait(phba);
949 /* no privilege for reset */
950 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
951 "3150 No privilege to perform the requested "
952 "access: x%x\n", reg_val);
953 } else if (rc == -EIO) {
954 /* reset failed, there is nothing more we can do */
955 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
956 "3153 Fail to perform the requested "
957 "access: x%x\n", reg_val);
961 /* keep the original port state */
962 if (before_fc_flag & FC_OFFLINE_MODE)
965 init_completion(&online_compl);
966 job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
971 wait_for_completion(&online_compl);
974 /* in any case, restore the virtual functions enabled as before */
975 if (sriov_nr_virtfn) {
977 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
979 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
982 /* return proper error code */
993 * lpfc_nport_evt_cnt_show - Return the number of nport events
994 * @dev: class device that is converted into a Scsi_host.
995 * @attr: device attribute, not used.
996 * @buf: on return contains the ascii number of nport events.
998 * Returns: size of formatted string.
1001 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
1004 struct Scsi_Host *shost = class_to_shost(dev);
1005 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1006 struct lpfc_hba *phba = vport->phba;
1008 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
1012 * lpfc_board_mode_show - Return the state of the board
1013 * @dev: class device that is converted into a Scsi_host.
1014 * @attr: device attribute, not used.
1015 * @buf: on return contains the state of the adapter.
1017 * Returns: size of formatted string.
1020 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
1023 struct Scsi_Host *shost = class_to_shost(dev);
1024 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1025 struct lpfc_hba *phba = vport->phba;
1028 if (phba->link_state == LPFC_HBA_ERROR)
1030 else if (phba->link_state == LPFC_WARM_START)
1031 state = "warm start";
1032 else if (phba->link_state == LPFC_INIT_START)
1037 return snprintf(buf, PAGE_SIZE, "%s\n", state);
1041 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
1042 * @dev: class device that is converted into a Scsi_host.
1043 * @attr: device attribute, not used.
1044 * @buf: containing one of the strings "online", "offline", "warm" or "error".
1045 * @count: unused variable.
1048 * -EACCES if enable hba reset not enabled
1049 * -EINVAL if the buffer does not contain a valid string (see above)
1050 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
1051 * buf length greater than zero indicates success
1054 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
1055 const char *buf, size_t count)
1057 struct Scsi_Host *shost = class_to_shost(dev);
1058 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1059 struct lpfc_hba *phba = vport->phba;
1060 struct completion online_compl;
1061 char *board_mode_str = NULL;
1065 if (!phba->cfg_enable_hba_reset) {
1067 goto board_mode_out;
1070 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1071 "3050 lpfc_board_mode set to %s\n", buf);
1073 init_completion(&online_compl);
1075 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
1076 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1080 goto board_mode_out;
1082 wait_for_completion(&online_compl);
1083 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
1084 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1085 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
1086 if (phba->sli_rev == LPFC_SLI_REV4)
1089 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
1090 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
1091 if (phba->sli_rev == LPFC_SLI_REV4)
1094 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
1095 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
1096 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
1097 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
1098 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
1099 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
1100 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
1108 board_mode_str = strchr(buf, '\n');
1110 *board_mode_str = '\0';
1111 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1112 "3097 Failed \"%s\", status(%d), "
1114 buf, status, phba->pport->fc_flag);
1120 * lpfc_get_hba_info - Return various bits of informaton about the adapter
1121 * @phba: pointer to the adapter structure.
1122 * @mxri: max xri count.
1123 * @axri: available xri count.
1124 * @mrpi: max rpi count.
1125 * @arpi: available rpi count.
1126 * @mvpi: max vpi count.
1127 * @avpi: available vpi count.
1130 * If an integer pointer for an count is not null then the value for the
1131 * count is returned.
1138 lpfc_get_hba_info(struct lpfc_hba *phba,
1139 uint32_t *mxri, uint32_t *axri,
1140 uint32_t *mrpi, uint32_t *arpi,
1141 uint32_t *mvpi, uint32_t *avpi)
1143 struct lpfc_mbx_read_config *rd_config;
1144 LPFC_MBOXQ_t *pmboxq;
1150 * prevent udev from issuing mailbox commands until the port is
1153 if (phba->link_state < LPFC_LINK_DOWN ||
1154 !phba->mbox_mem_pool ||
1155 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
1158 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
1161 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1164 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1166 pmb = &pmboxq->u.mb;
1167 pmb->mbxCommand = MBX_READ_CONFIG;
1168 pmb->mbxOwner = OWN_HOST;
1169 pmboxq->context1 = NULL;
1171 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1172 rc = MBX_NOT_FINISHED;
1174 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1176 if (rc != MBX_SUCCESS) {
1177 if (rc != MBX_TIMEOUT)
1178 mempool_free(pmboxq, phba->mbox_mem_pool);
1182 if (phba->sli_rev == LPFC_SLI_REV4) {
1183 rd_config = &pmboxq->u.mqe.un.rd_config;
1185 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
1187 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
1188 phba->sli4_hba.max_cfg_param.rpi_used;
1190 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
1192 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
1193 phba->sli4_hba.max_cfg_param.xri_used;
1195 /* Account for differences with SLI-3. Get vpi count from
1196 * mailbox data and subtract one for max vpi value.
1198 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
1199 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
1204 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
1207 *mrpi = pmb->un.varRdConfig.max_rpi;
1209 *arpi = pmb->un.varRdConfig.avail_rpi;
1211 *mxri = pmb->un.varRdConfig.max_xri;
1213 *axri = pmb->un.varRdConfig.avail_xri;
1215 *mvpi = pmb->un.varRdConfig.max_vpi;
1217 *avpi = pmb->un.varRdConfig.avail_vpi;
1220 mempool_free(pmboxq, phba->mbox_mem_pool);
1225 * lpfc_max_rpi_show - Return maximum rpi
1226 * @dev: class device that is converted into a Scsi_host.
1227 * @attr: device attribute, not used.
1228 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
1231 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1232 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1233 * to "Unknown" and the buffer length is returned, therefore the caller
1234 * must check for "Unknown" in the buffer to detect a failure.
1236 * Returns: size of formatted string.
1239 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
1242 struct Scsi_Host *shost = class_to_shost(dev);
1243 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1244 struct lpfc_hba *phba = vport->phba;
1247 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
1248 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1249 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1253 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
1254 * @dev: class device that is converted into a Scsi_host.
1255 * @attr: device attribute, not used.
1256 * @buf: containing the used rpi count in decimal or "Unknown".
1259 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
1260 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1261 * to "Unknown" and the buffer length is returned, therefore the caller
1262 * must check for "Unknown" in the buffer to detect a failure.
1264 * Returns: size of formatted string.
1267 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
1270 struct Scsi_Host *shost = class_to_shost(dev);
1271 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1272 struct lpfc_hba *phba = vport->phba;
1275 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1276 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1277 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1281 * lpfc_max_xri_show - Return maximum xri
1282 * @dev: class device that is converted into a Scsi_host.
1283 * @attr: device attribute, not used.
1284 * @buf: on return contains the maximum xri count in decimal or "Unknown".
1287 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1288 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1289 * to "Unknown" and the buffer length is returned, therefore the caller
1290 * must check for "Unknown" in the buffer to detect a failure.
1292 * Returns: size of formatted string.
1295 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
1298 struct Scsi_Host *shost = class_to_shost(dev);
1299 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1300 struct lpfc_hba *phba = vport->phba;
1303 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1304 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1305 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1309 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1310 * @dev: class device that is converted into a Scsi_host.
1311 * @attr: device attribute, not used.
1312 * @buf: on return contains the used xri count in decimal or "Unknown".
1315 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
1316 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1317 * to "Unknown" and the buffer length is returned, therefore the caller
1318 * must check for "Unknown" in the buffer to detect a failure.
1320 * Returns: size of formatted string.
1323 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
1326 struct Scsi_Host *shost = class_to_shost(dev);
1327 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1328 struct lpfc_hba *phba = vport->phba;
1331 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
1332 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1333 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1337 * lpfc_max_vpi_show - Return maximum vpi
1338 * @dev: class device that is converted into a Scsi_host.
1339 * @attr: device attribute, not used.
1340 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
1343 * Calls lpfc_get_hba_info() asking for just the mvpi count.
1344 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1345 * to "Unknown" and the buffer length is returned, therefore the caller
1346 * must check for "Unknown" in the buffer to detect a failure.
1348 * Returns: size of formatted string.
1351 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
1354 struct Scsi_Host *shost = class_to_shost(dev);
1355 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1356 struct lpfc_hba *phba = vport->phba;
1359 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
1360 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1361 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1365 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1366 * @dev: class device that is converted into a Scsi_host.
1367 * @attr: device attribute, not used.
1368 * @buf: on return contains the used vpi count in decimal or "Unknown".
1371 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
1372 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1373 * to "Unknown" and the buffer length is returned, therefore the caller
1374 * must check for "Unknown" in the buffer to detect a failure.
1376 * Returns: size of formatted string.
1379 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
1382 struct Scsi_Host *shost = class_to_shost(dev);
1383 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1384 struct lpfc_hba *phba = vport->phba;
1387 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
1388 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1389 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1393 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1394 * @dev: class device that is converted into a Scsi_host.
1395 * @attr: device attribute, not used.
1396 * @buf: text that must be interpreted to determine if npiv is supported.
1399 * Buffer will contain text indicating npiv is not suppoerted on the port,
1400 * the port is an NPIV physical port, or it is an npiv virtual port with
1401 * the id of the vport.
1403 * Returns: size of formatted string.
1406 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
1409 struct Scsi_Host *shost = class_to_shost(dev);
1410 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1411 struct lpfc_hba *phba = vport->phba;
1413 if (!(phba->max_vpi))
1414 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
1415 if (vport->port_type == LPFC_PHYSICAL_PORT)
1416 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
1417 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
1421 * lpfc_poll_show - Return text about poll support for the adapter
1422 * @dev: class device that is converted into a Scsi_host.
1423 * @attr: device attribute, not used.
1424 * @buf: on return contains the cfg_poll in hex.
1427 * cfg_poll should be a lpfc_polling_flags type.
1429 * Returns: size of formatted string.
1432 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
1435 struct Scsi_Host *shost = class_to_shost(dev);
1436 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1437 struct lpfc_hba *phba = vport->phba;
1439 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
1443 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1444 * @dev: class device that is converted into a Scsi_host.
1445 * @attr: device attribute, not used.
1446 * @buf: one or more lpfc_polling_flags values.
1450 * buf contents converted to integer and checked for a valid value.
1453 * -EINVAL if the buffer connot be converted or is out of range
1454 * length of the buf on success
1457 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
1458 const char *buf, size_t count)
1460 struct Scsi_Host *shost = class_to_shost(dev);
1461 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1462 struct lpfc_hba *phba = vport->phba;
1467 if (!isdigit(buf[0]))
1470 if (sscanf(buf, "%i", &val) != 1)
1473 if ((val & 0x3) != val)
1476 if (phba->sli_rev == LPFC_SLI_REV4)
1479 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1480 "3051 lpfc_poll changed from %d to %d\n",
1481 phba->cfg_poll, val);
1483 spin_lock_irq(&phba->hbalock);
1485 old_val = phba->cfg_poll;
1487 if (val & ENABLE_FCP_RING_POLLING) {
1488 if ((val & DISABLE_FCP_RING_INT) &&
1489 !(old_val & DISABLE_FCP_RING_INT)) {
1490 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1491 spin_unlock_irq(&phba->hbalock);
1494 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
1495 writel(creg_val, phba->HCregaddr);
1496 readl(phba->HCregaddr); /* flush */
1498 lpfc_poll_start_timer(phba);
1500 } else if (val != 0x0) {
1501 spin_unlock_irq(&phba->hbalock);
1505 if (!(val & DISABLE_FCP_RING_INT) &&
1506 (old_val & DISABLE_FCP_RING_INT))
1508 spin_unlock_irq(&phba->hbalock);
1509 del_timer(&phba->fcp_poll_timer);
1510 spin_lock_irq(&phba->hbalock);
1511 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1512 spin_unlock_irq(&phba->hbalock);
1515 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1516 writel(creg_val, phba->HCregaddr);
1517 readl(phba->HCregaddr); /* flush */
1520 phba->cfg_poll = val;
1522 spin_unlock_irq(&phba->hbalock);
1528 * lpfc_fips_level_show - Return the current FIPS level for the HBA
1529 * @dev: class unused variable.
1530 * @attr: device attribute, not used.
1531 * @buf: on return contains the module description text.
1533 * Returns: size of formatted string.
1536 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr,
1539 struct Scsi_Host *shost = class_to_shost(dev);
1540 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1541 struct lpfc_hba *phba = vport->phba;
1543 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
1547 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
1548 * @dev: class unused variable.
1549 * @attr: device attribute, not used.
1550 * @buf: on return contains the module description text.
1552 * Returns: size of formatted string.
1555 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr,
1558 struct Scsi_Host *shost = class_to_shost(dev);
1559 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1560 struct lpfc_hba *phba = vport->phba;
1562 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
1566 * lpfc_dss_show - Return the current state of dss and the configured state
1567 * @dev: class converted to a Scsi_host structure.
1568 * @attr: device attribute, not used.
1569 * @buf: on return contains the formatted text.
1571 * Returns: size of formatted string.
1574 lpfc_dss_show(struct device *dev, struct device_attribute *attr,
1577 struct Scsi_Host *shost = class_to_shost(dev);
1578 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1579 struct lpfc_hba *phba = vport->phba;
1581 return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
1582 (phba->cfg_enable_dss) ? "Enabled" : "Disabled",
1583 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
1588 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
1589 * @dev: class converted to a Scsi_host structure.
1590 * @attr: device attribute, not used.
1591 * @buf: on return contains the formatted support level.
1594 * Returns the maximum number of virtual functions a physical function can
1595 * support, 0 will be returned if called on virtual function.
1597 * Returns: size of formatted string.
1600 lpfc_sriov_hw_max_virtfn_show(struct device *dev,
1601 struct device_attribute *attr,
1604 struct Scsi_Host *shost = class_to_shost(dev);
1605 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1606 struct lpfc_hba *phba = vport->phba;
1607 uint16_t max_nr_virtfn;
1609 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
1610 return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
1614 * lpfc_param_show - Return a cfg attribute value in decimal
1617 * Macro that given an attr e.g. hba_queue_depth expands
1618 * into a function with the name lpfc_hba_queue_depth_show.
1620 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1621 * @dev: class device that is converted into a Scsi_host.
1622 * @attr: device attribute, not used.
1623 * @buf: on return contains the attribute value in decimal.
1625 * Returns: size of formatted string.
1627 #define lpfc_param_show(attr) \
1629 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1632 struct Scsi_Host *shost = class_to_shost(dev);\
1633 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1634 struct lpfc_hba *phba = vport->phba;\
1636 val = phba->cfg_##attr;\
1637 return snprintf(buf, PAGE_SIZE, "%d\n",\
1642 * lpfc_param_hex_show - Return a cfg attribute value in hex
1645 * Macro that given an attr e.g. hba_queue_depth expands
1646 * into a function with the name lpfc_hba_queue_depth_show
1648 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1649 * @dev: class device that is converted into a Scsi_host.
1650 * @attr: device attribute, not used.
1651 * @buf: on return contains the attribute value in hexadecimal.
1653 * Returns: size of formatted string.
1655 #define lpfc_param_hex_show(attr) \
1657 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1660 struct Scsi_Host *shost = class_to_shost(dev);\
1661 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1662 struct lpfc_hba *phba = vport->phba;\
1664 val = phba->cfg_##attr;\
1665 return snprintf(buf, PAGE_SIZE, "%#x\n",\
1670 * lpfc_param_init - Initializes a cfg attribute
1673 * Macro that given an attr e.g. hba_queue_depth expands
1674 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1675 * takes a default argument, a minimum and maximum argument.
1677 * lpfc_##attr##_init: Initializes an attribute.
1678 * @phba: pointer the the adapter structure.
1679 * @val: integer attribute value.
1681 * Validates the min and max values then sets the adapter config field
1682 * accordingly, or uses the default if out of range and prints an error message.
1686 * -EINVAL if default used
1688 #define lpfc_param_init(attr, default, minval, maxval) \
1690 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1692 if (val >= minval && val <= maxval) {\
1693 phba->cfg_##attr = val;\
1696 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1697 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
1698 "allowed range is ["#minval", "#maxval"]\n", val); \
1699 phba->cfg_##attr = default;\
1704 * lpfc_param_set - Set a cfg attribute value
1707 * Macro that given an attr e.g. hba_queue_depth expands
1708 * into a function with the name lpfc_hba_queue_depth_set
1710 * lpfc_##attr##_set: Sets an attribute value.
1711 * @phba: pointer the the adapter structure.
1712 * @val: integer attribute value.
1715 * Validates the min and max values then sets the
1716 * adapter config field if in the valid range. prints error message
1717 * and does not set the parameter if invalid.
1721 * -EINVAL if val is invalid
1723 #define lpfc_param_set(attr, default, minval, maxval) \
1725 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1727 if (val >= minval && val <= maxval) {\
1728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1729 "3052 lpfc_" #attr " changed from %d to %d\n", \
1730 phba->cfg_##attr, val); \
1731 phba->cfg_##attr = val;\
1734 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1735 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
1736 "allowed range is ["#minval", "#maxval"]\n", val); \
1741 * lpfc_param_store - Set a vport attribute value
1744 * Macro that given an attr e.g. hba_queue_depth expands
1745 * into a function with the name lpfc_hba_queue_depth_store.
1747 * lpfc_##attr##_store: Set an sttribute value.
1748 * @dev: class device that is converted into a Scsi_host.
1749 * @attr: device attribute, not used.
1750 * @buf: contains the attribute value in ascii.
1754 * Convert the ascii text number to an integer, then
1755 * use the lpfc_##attr##_set function to set the value.
1758 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1759 * length of buffer upon success.
1761 #define lpfc_param_store(attr) \
1763 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1764 const char *buf, size_t count) \
1766 struct Scsi_Host *shost = class_to_shost(dev);\
1767 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1768 struct lpfc_hba *phba = vport->phba;\
1770 if (!isdigit(buf[0]))\
1772 if (sscanf(buf, "%i", &val) != 1)\
1774 if (lpfc_##attr##_set(phba, val) == 0) \
1775 return strlen(buf);\
1781 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1784 * Macro that given an attr e.g. hba_queue_depth expands
1785 * into a function with the name lpfc_hba_queue_depth_show
1787 * lpfc_##attr##_show: prints the attribute value in decimal.
1788 * @dev: class device that is converted into a Scsi_host.
1789 * @attr: device attribute, not used.
1790 * @buf: on return contains the attribute value in decimal.
1792 * Returns: length of formatted string.
1794 #define lpfc_vport_param_show(attr) \
1796 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1799 struct Scsi_Host *shost = class_to_shost(dev);\
1800 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1802 val = vport->cfg_##attr;\
1803 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
1807 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1810 * Macro that given an attr e.g.
1811 * hba_queue_depth expands into a function with the name
1812 * lpfc_hba_queue_depth_show
1814 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1815 * @dev: class device that is converted into a Scsi_host.
1816 * @attr: device attribute, not used.
1817 * @buf: on return contains the attribute value in hexadecimal.
1819 * Returns: length of formatted string.
1821 #define lpfc_vport_param_hex_show(attr) \
1823 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1826 struct Scsi_Host *shost = class_to_shost(dev);\
1827 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1829 val = vport->cfg_##attr;\
1830 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
1834 * lpfc_vport_param_init - Initialize a vport cfg attribute
1837 * Macro that given an attr e.g. hba_queue_depth expands
1838 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1839 * takes a default argument, a minimum and maximum argument.
1841 * lpfc_##attr##_init: validates the min and max values then sets the
1842 * adapter config field accordingly, or uses the default if out of range
1843 * and prints an error message.
1844 * @phba: pointer the the adapter structure.
1845 * @val: integer attribute value.
1849 * -EINVAL if default used
1851 #define lpfc_vport_param_init(attr, default, minval, maxval) \
1853 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1855 if (val >= minval && val <= maxval) {\
1856 vport->cfg_##attr = val;\
1859 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1860 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1861 "allowed range is ["#minval", "#maxval"]\n", val); \
1862 vport->cfg_##attr = default;\
1867 * lpfc_vport_param_set - Set a vport cfg attribute
1870 * Macro that given an attr e.g. hba_queue_depth expands
1871 * into a function with the name lpfc_hba_queue_depth_set
1873 * lpfc_##attr##_set: validates the min and max values then sets the
1874 * adapter config field if in the valid range. prints error message
1875 * and does not set the parameter if invalid.
1876 * @phba: pointer the the adapter structure.
1877 * @val: integer attribute value.
1881 * -EINVAL if val is invalid
1883 #define lpfc_vport_param_set(attr, default, minval, maxval) \
1885 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1887 if (val >= minval && val <= maxval) {\
1888 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1889 "3053 lpfc_" #attr \
1890 " changed from %d (x%x) to %d (x%x)\n", \
1891 vport->cfg_##attr, vport->cfg_##attr, \
1893 vport->cfg_##attr = val;\
1896 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1897 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1898 "allowed range is ["#minval", "#maxval"]\n", val); \
1903 * lpfc_vport_param_store - Set a vport attribute
1906 * Macro that given an attr e.g. hba_queue_depth
1907 * expands into a function with the name lpfc_hba_queue_depth_store
1909 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1910 * use the lpfc_##attr##_set function to set the value.
1911 * @cdev: class device that is converted into a Scsi_host.
1912 * @buf: contains the attribute value in decimal.
1916 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1917 * length of buffer upon success.
1919 #define lpfc_vport_param_store(attr) \
1921 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1922 const char *buf, size_t count) \
1924 struct Scsi_Host *shost = class_to_shost(dev);\
1925 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1927 if (!isdigit(buf[0]))\
1929 if (sscanf(buf, "%i", &val) != 1)\
1931 if (lpfc_##attr##_set(vport, val) == 0) \
1932 return strlen(buf);\
1938 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
1939 static uint lpfc_##name = defval;\
1940 module_param(lpfc_##name, uint, S_IRUGO);\
1941 MODULE_PARM_DESC(lpfc_##name, desc);\
1942 lpfc_param_init(name, defval, minval, maxval)
1944 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
1945 static uint lpfc_##name = defval;\
1946 module_param(lpfc_##name, uint, S_IRUGO);\
1947 MODULE_PARM_DESC(lpfc_##name, desc);\
1948 lpfc_param_show(name)\
1949 lpfc_param_init(name, defval, minval, maxval)\
1950 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1952 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
1953 static uint lpfc_##name = defval;\
1954 module_param(lpfc_##name, uint, S_IRUGO);\
1955 MODULE_PARM_DESC(lpfc_##name, desc);\
1956 lpfc_param_show(name)\
1957 lpfc_param_init(name, defval, minval, maxval)\
1958 lpfc_param_set(name, defval, minval, maxval)\
1959 lpfc_param_store(name)\
1960 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1961 lpfc_##name##_show, lpfc_##name##_store)
1963 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1964 static uint lpfc_##name = defval;\
1965 module_param(lpfc_##name, uint, S_IRUGO);\
1966 MODULE_PARM_DESC(lpfc_##name, desc);\
1967 lpfc_param_hex_show(name)\
1968 lpfc_param_init(name, defval, minval, maxval)\
1969 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1971 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1972 static uint lpfc_##name = defval;\
1973 module_param(lpfc_##name, uint, S_IRUGO);\
1974 MODULE_PARM_DESC(lpfc_##name, desc);\
1975 lpfc_param_hex_show(name)\
1976 lpfc_param_init(name, defval, minval, maxval)\
1977 lpfc_param_set(name, defval, minval, maxval)\
1978 lpfc_param_store(name)\
1979 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1980 lpfc_##name##_show, lpfc_##name##_store)
1982 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
1983 static uint lpfc_##name = defval;\
1984 module_param(lpfc_##name, uint, S_IRUGO);\
1985 MODULE_PARM_DESC(lpfc_##name, desc);\
1986 lpfc_vport_param_init(name, defval, minval, maxval)
1988 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
1989 static uint lpfc_##name = defval;\
1990 module_param(lpfc_##name, uint, S_IRUGO);\
1991 MODULE_PARM_DESC(lpfc_##name, desc);\
1992 lpfc_vport_param_show(name)\
1993 lpfc_vport_param_init(name, defval, minval, maxval)\
1994 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1996 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
1997 static uint lpfc_##name = defval;\
1998 module_param(lpfc_##name, uint, S_IRUGO);\
1999 MODULE_PARM_DESC(lpfc_##name, desc);\
2000 lpfc_vport_param_show(name)\
2001 lpfc_vport_param_init(name, defval, minval, maxval)\
2002 lpfc_vport_param_set(name, defval, minval, maxval)\
2003 lpfc_vport_param_store(name)\
2004 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
2005 lpfc_##name##_show, lpfc_##name##_store)
2007 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
2008 static uint lpfc_##name = defval;\
2009 module_param(lpfc_##name, uint, S_IRUGO);\
2010 MODULE_PARM_DESC(lpfc_##name, desc);\
2011 lpfc_vport_param_hex_show(name)\
2012 lpfc_vport_param_init(name, defval, minval, maxval)\
2013 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
2015 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
2016 static uint lpfc_##name = defval;\
2017 module_param(lpfc_##name, uint, S_IRUGO);\
2018 MODULE_PARM_DESC(lpfc_##name, desc);\
2019 lpfc_vport_param_hex_show(name)\
2020 lpfc_vport_param_init(name, defval, minval, maxval)\
2021 lpfc_vport_param_set(name, defval, minval, maxval)\
2022 lpfc_vport_param_store(name)\
2023 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
2024 lpfc_##name##_show, lpfc_##name##_store)
2026 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
2027 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
2028 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
2029 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
2030 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
2031 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
2032 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
2033 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
2034 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
2035 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
2036 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
2037 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
2038 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
2039 lpfc_link_state_store);
2040 static DEVICE_ATTR(option_rom_version, S_IRUGO,
2041 lpfc_option_rom_version_show, NULL);
2042 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
2043 lpfc_num_discovered_ports_show, NULL);
2044 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
2045 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
2046 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
2047 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
2048 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
2049 lpfc_board_mode_show, lpfc_board_mode_store);
2050 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
2051 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
2052 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
2053 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
2054 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
2055 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
2056 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
2057 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
2058 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
2059 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
2060 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
2061 static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
2062 static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
2063 lpfc_sriov_hw_max_virtfn_show, NULL);
2064 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
2065 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
2068 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
2071 * lpfc_wwn_set - Convert string to the 8 byte WWN value.
2073 * @cnt: Length of string.
2074 * @wwn: Array to receive converted wwn value.
2077 * -EINVAL if the buffer does not contain a valid wwn
2081 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[])
2085 /* Count may include a LF at end of string */
2086 if (buf[cnt-1] == '\n')
2089 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) ||
2090 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
2093 memset(wwn, 0, WWN_SZ);
2095 /* Validate and store the new name */
2096 for (i = 0, j = 0; i < 16; i++) {
2097 if ((*buf >= 'a') && (*buf <= 'f'))
2098 j = ((j << 4) | ((*buf++ - 'a') + 10));
2099 else if ((*buf >= 'A') && (*buf <= 'F'))
2100 j = ((j << 4) | ((*buf++ - 'A') + 10));
2101 else if ((*buf >= '0') && (*buf <= '9'))
2102 j = ((j << 4) | (*buf++ - '0'));
2106 wwn[i/2] = j & 0xff;
2113 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
2114 * @dev: class device that is converted into a Scsi_host.
2115 * @attr: device attribute, not used.
2116 * @buf: containing the string lpfc_soft_wwn_key.
2117 * @count: must be size of lpfc_soft_wwn_key.
2120 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
2121 * length of buf indicates success
2124 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
2125 const char *buf, size_t count)
2127 struct Scsi_Host *shost = class_to_shost(dev);
2128 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2129 struct lpfc_hba *phba = vport->phba;
2130 unsigned int cnt = count;
2133 * We're doing a simple sanity check for soft_wwpn setting.
2134 * We require that the user write a specific key to enable
2135 * the soft_wwpn attribute to be settable. Once the attribute
2136 * is written, the enable key resets. If further updates are
2137 * desired, the key must be written again to re-enable the
2140 * The "key" is not secret - it is a hardcoded string shown
2141 * here. The intent is to protect against the random user or
2142 * application that is just writing attributes.
2145 /* count may include a LF at end of string */
2146 if (buf[cnt-1] == '\n')
2149 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
2150 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
2153 phba->soft_wwn_enable = 1;
2156 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
2157 lpfc_soft_wwn_enable_store);
2160 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
2161 * @dev: class device that is converted into a Scsi_host.
2162 * @attr: device attribute, not used.
2163 * @buf: on return contains the wwpn in hexadecimal.
2165 * Returns: size of formatted string.
2168 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
2171 struct Scsi_Host *shost = class_to_shost(dev);
2172 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2173 struct lpfc_hba *phba = vport->phba;
2175 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2176 (unsigned long long)phba->cfg_soft_wwpn);
2180 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
2181 * @dev class device that is converted into a Scsi_host.
2182 * @attr: device attribute, not used.
2183 * @buf: contains the wwpn in hexadecimal.
2184 * @count: number of wwpn bytes in buf
2187 * -EACCES hba reset not enabled, adapter over temp
2188 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
2189 * -EIO error taking adapter offline or online
2190 * value of count on success
2193 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
2194 const char *buf, size_t count)
2196 struct Scsi_Host *shost = class_to_shost(dev);
2197 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2198 struct lpfc_hba *phba = vport->phba;
2199 struct completion online_compl;
2200 int stat1 = 0, stat2 = 0;
2201 unsigned int cnt = count;
2205 if (!phba->cfg_enable_hba_reset)
2207 spin_lock_irq(&phba->hbalock);
2208 if (phba->over_temp_state == HBA_OVER_TEMP) {
2209 spin_unlock_irq(&phba->hbalock);
2212 spin_unlock_irq(&phba->hbalock);
2213 /* count may include a LF at end of string */
2214 if (buf[cnt-1] == '\n')
2217 if (!phba->soft_wwn_enable)
2220 /* lock setting wwpn, wwnn down */
2221 phba->soft_wwn_enable = 0;
2223 rc = lpfc_wwn_set(buf, cnt, wwpn);
2225 /* not able to set wwpn, unlock it */
2226 phba->soft_wwn_enable = 1;
2230 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
2231 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
2232 if (phba->cfg_soft_wwnn)
2233 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
2235 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2236 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
2238 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
2240 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2241 "0463 lpfc_soft_wwpn attribute set failed to "
2242 "reinit adapter - %d\n", stat1);
2243 init_completion(&online_compl);
2244 rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
2249 wait_for_completion(&online_compl);
2251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2252 "0464 lpfc_soft_wwpn attribute set failed to "
2253 "reinit adapter - %d\n", stat2);
2254 return (stat1 || stat2) ? -EIO : count;
2256 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,
2257 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
2260 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
2261 * @dev: class device that is converted into a Scsi_host.
2262 * @attr: device attribute, not used.
2263 * @buf: on return contains the wwnn in hexadecimal.
2265 * Returns: size of formatted string.
2268 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
2271 struct Scsi_Host *shost = class_to_shost(dev);
2272 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2273 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2274 (unsigned long long)phba->cfg_soft_wwnn);
2278 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
2279 * @cdev: class device that is converted into a Scsi_host.
2280 * @buf: contains the ww node name in hexadecimal.
2281 * @count: number of wwnn bytes in buf.
2284 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
2285 * value of count on success
2288 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
2289 const char *buf, size_t count)
2291 struct Scsi_Host *shost = class_to_shost(dev);
2292 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2293 unsigned int cnt = count;
2297 /* count may include a LF at end of string */
2298 if (buf[cnt-1] == '\n')
2301 if (!phba->soft_wwn_enable)
2304 rc = lpfc_wwn_set(buf, cnt, wwnn);
2306 /* Allow wwnn to be set many times, as long as the enable
2307 * is set. However, once the wwpn is set, everything locks.
2312 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
2314 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2315 "lpfc%d: soft_wwnn set. Value will take effect upon "
2316 "setting of the soft_wwpn\n", phba->brd_no);
2320 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,
2321 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
2324 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
2325 * Optimized Access Storage (OAS) operations.
2326 * @dev: class device that is converted into a Scsi_host.
2327 * @attr: device attribute, not used.
2328 * @buf: buffer for passing information.
2334 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr,
2337 struct Scsi_Host *shost = class_to_shost(dev);
2338 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2340 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2341 wwn_to_u64(phba->cfg_oas_tgt_wwpn));
2345 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for
2346 * Optimized Access Storage (OAS) operations.
2347 * @dev: class device that is converted into a Scsi_host.
2348 * @attr: device attribute, not used.
2349 * @buf: buffer for passing information.
2350 * @count: Size of the data buffer.
2353 * -EINVAL count is invalid, invalid wwpn byte invalid
2354 * -EPERM oas is not supported by hba
2355 * value of count on success
2358 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr,
2359 const char *buf, size_t count)
2361 struct Scsi_Host *shost = class_to_shost(dev);
2362 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2363 unsigned int cnt = count;
2364 uint8_t wwpn[WWN_SZ];
2367 if (!phba->cfg_EnableXLane)
2370 /* count may include a LF at end of string */
2371 if (buf[cnt-1] == '\n')
2374 rc = lpfc_wwn_set(buf, cnt, wwpn);
2378 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2379 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2380 if (wwn_to_u64(wwpn) == 0)
2381 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET;
2383 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET;
2384 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
2385 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
2388 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR,
2389 lpfc_oas_tgt_show, lpfc_oas_tgt_store);
2392 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled
2393 * for Optimized Access Storage (OAS) operations.
2394 * @dev: class device that is converted into a Scsi_host.
2395 * @attr: device attribute, not used.
2396 * @buf: buffer for passing information.
2399 * value of count on success
2402 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr,
2405 struct Scsi_Host *shost = class_to_shost(dev);
2406 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2408 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2409 wwn_to_u64(phba->cfg_oas_vpt_wwpn));
2413 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled
2414 * for Optimized Access Storage (OAS) operations.
2415 * @dev: class device that is converted into a Scsi_host.
2416 * @attr: device attribute, not used.
2417 * @buf: buffer for passing information.
2418 * @count: Size of the data buffer.
2421 * -EINVAL count is invalid, invalid wwpn byte invalid
2422 * -EPERM oas is not supported by hba
2423 * value of count on success
2426 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr,
2427 const char *buf, size_t count)
2429 struct Scsi_Host *shost = class_to_shost(dev);
2430 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2431 unsigned int cnt = count;
2432 uint8_t wwpn[WWN_SZ];
2435 if (!phba->cfg_EnableXLane)
2438 /* count may include a LF at end of string */
2439 if (buf[cnt-1] == '\n')
2442 rc = lpfc_wwn_set(buf, cnt, wwpn);
2446 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2447 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2448 if (wwn_to_u64(wwpn) == 0)
2449 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT;
2451 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT;
2452 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
2453 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
2456 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR,
2457 lpfc_oas_vpt_show, lpfc_oas_vpt_store);
2460 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled)
2461 * of whether luns will be enabled or disabled
2462 * for Optimized Access Storage (OAS) operations.
2463 * @dev: class device that is converted into a Scsi_host.
2464 * @attr: device attribute, not used.
2465 * @buf: buffer for passing information.
2468 * size of formatted string.
2471 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr,
2474 struct Scsi_Host *shost = class_to_shost(dev);
2475 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2477 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
2481 * lpfc_oas_lun_state_store - Store the state (enabled or disabled)
2482 * of whether luns will be enabled or disabled
2483 * for Optimized Access Storage (OAS) operations.
2484 * @dev: class device that is converted into a Scsi_host.
2485 * @attr: device attribute, not used.
2486 * @buf: buffer for passing information.
2487 * @count: Size of the data buffer.
2490 * -EINVAL count is invalid, invalid wwpn byte invalid
2491 * -EPERM oas is not supported by hba
2492 * value of count on success
2495 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr,
2496 const char *buf, size_t count)
2498 struct Scsi_Host *shost = class_to_shost(dev);
2499 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2502 if (!phba->cfg_EnableXLane)
2505 if (!isdigit(buf[0]))
2508 if (sscanf(buf, "%i", &val) != 1)
2511 if ((val != 0) && (val != 1))
2514 phba->cfg_oas_lun_state = val;
2518 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR,
2519 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store);
2522 * lpfc_oas_lun_status_show - Return the status of the Optimized Access
2523 * Storage (OAS) lun returned by the
2524 * lpfc_oas_lun_show function.
2525 * @dev: class device that is converted into a Scsi_host.
2526 * @attr: device attribute, not used.
2527 * @buf: buffer for passing information.
2530 * size of formatted string.
2533 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr,
2536 struct Scsi_Host *shost = class_to_shost(dev);
2537 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2539 if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
2542 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
2544 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
2545 lpfc_oas_lun_status_show, NULL);
2549 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage
2551 * @phba: lpfc_hba pointer.
2552 * @ndlp: pointer to fcp target node.
2553 * @lun: the fc lun for setting oas state.
2554 * @oas_state: the oas state to be set to the lun.
2558 * -EPERM OAS is not enabled or not supported by this port.
2562 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2563 uint8_t tgt_wwpn[], uint64_t lun, uint32_t oas_state)
2568 if (!phba->cfg_EnableXLane)
2572 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
2573 (struct lpfc_name *)tgt_wwpn, lun))
2576 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
2577 (struct lpfc_name *)tgt_wwpn, lun);
2584 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized
2585 * Access Storage (OAS) operations.
2586 * @phba: lpfc_hba pointer.
2587 * @vpt_wwpn: wwpn of the vport associated with the returned lun
2588 * @tgt_wwpn: wwpn of the target associated with the returned lun
2589 * @lun_status: status of the lun returned lun
2591 * Returns the first or next lun enabled for OAS operations for the vport/target
2592 * specified. If a lun is found, its vport wwpn, target wwpn and status is
2593 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned.
2596 * lun that is OAS enabled for the vport/target
2597 * NOT_OAS_ENABLED_LUN when no oas enabled lun found.
2600 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2601 uint8_t tgt_wwpn[], uint32_t *lun_status)
2605 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn)
2606 return NOT_OAS_ENABLED_LUN;
2607 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *)
2608 phba->sli4_hba.oas_next_vpt_wwpn,
2609 (struct lpfc_name *)
2610 phba->sli4_hba.oas_next_tgt_wwpn,
2611 &phba->sli4_hba.oas_next_lun,
2612 (struct lpfc_name *)vpt_wwpn,
2613 (struct lpfc_name *)tgt_wwpn,
2614 &found_lun, lun_status))
2617 return NOT_OAS_ENABLED_LUN;
2621 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations
2622 * @phba: lpfc_hba pointer.
2623 * @vpt_wwpn: vport wwpn by reference.
2624 * @tgt_wwpn: target wwpn by reference.
2625 * @lun: the fc lun for setting oas state.
2626 * @oas_state: the oas state to be set to the oas_lun.
2628 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE)
2629 * a lun for OAS operations.
2633 * -ENOMEM: failed to enable an lun for OAS operations
2634 * -EPERM: OAS is not enabled
2637 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2638 uint8_t tgt_wwpn[], uint64_t lun,
2644 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun,
2650 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target
2651 * @dev: class device that is converted into a Scsi_host.
2652 * @attr: device attribute, not used.
2653 * @buf: buffer for passing information.
2655 * This routine returns a lun enabled for OAS each time the function
2659 * SUCCESS: size of formatted string.
2660 * -EFAULT: target or vport wwpn was not set properly.
2661 * -EPERM: oas is not enabled.
2664 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr,
2667 struct Scsi_Host *shost = class_to_shost(dev);
2668 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2673 if (!phba->cfg_EnableXLane)
2676 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
2677 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT))
2680 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
2681 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET))
2684 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn,
2685 phba->cfg_oas_tgt_wwpn,
2686 &phba->cfg_oas_lun_status);
2687 if (oas_lun != NOT_OAS_ENABLED_LUN)
2688 phba->cfg_oas_flags |= OAS_LUN_VALID;
2690 len += snprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
2696 * lpfc_oas_lun_store - Sets the OAS state for lun
2697 * @dev: class device that is converted into a Scsi_host.
2698 * @attr: device attribute, not used.
2699 * @buf: buffer for passing information.
2701 * This function sets the OAS state for lun. Before this function is called,
2702 * the vport wwpn, target wwpn, and oas state need to be set.
2705 * SUCCESS: size of formatted string.
2706 * -EFAULT: target or vport wwpn was not set properly.
2707 * -EPERM: oas is not enabled.
2708 * size of formatted string.
2711 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr,
2712 const char *buf, size_t count)
2714 struct Scsi_Host *shost = class_to_shost(dev);
2715 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2719 if (!phba->cfg_EnableXLane)
2722 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
2725 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
2728 if (!isdigit(buf[0]))
2731 if (sscanf(buf, "0x%llx", &scsi_lun) != 1)
2734 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2735 "3372 Try to set vport 0x%llx target 0x%llx lun:%lld "
2736 "with oas set to %d\n",
2737 wwn_to_u64(phba->cfg_oas_vpt_wwpn),
2738 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun,
2739 phba->cfg_oas_lun_state);
2741 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn,
2742 phba->cfg_oas_tgt_wwpn, scsi_lun,
2743 phba->cfg_oas_lun_state);
2750 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR,
2751 lpfc_oas_lun_show, lpfc_oas_lun_store);
2753 static int lpfc_poll = 0;
2754 module_param(lpfc_poll, int, S_IRUGO);
2755 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
2757 " 1 - poll with interrupts enabled"
2758 " 3 - poll and disable FCP ring interrupts");
2760 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
2761 lpfc_poll_show, lpfc_poll_store);
2763 int lpfc_sli_mode = 0;
2764 module_param(lpfc_sli_mode, int, S_IRUGO);
2765 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
2766 " 0 - auto (SLI-3 if supported),"
2767 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
2768 " 3 - select SLI-3");
2770 int lpfc_enable_npiv = 1;
2771 module_param(lpfc_enable_npiv, int, S_IRUGO);
2772 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
2773 lpfc_param_show(enable_npiv);
2774 lpfc_param_init(enable_npiv, 1, 0, 1);
2775 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
2777 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
2778 "FCF Fast failover=1 Priority failover=2");
2780 int lpfc_enable_rrq = 2;
2781 module_param(lpfc_enable_rrq, int, S_IRUGO);
2782 MODULE_PARM_DESC(lpfc_enable_rrq, "Enable RRQ functionality");
2783 lpfc_param_show(enable_rrq);
2785 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures
2786 # 0x0 = disabled, XRI/OXID use not tracked.
2787 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent.
2788 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent.
2790 lpfc_param_init(enable_rrq, 2, 0, 2);
2791 static DEVICE_ATTR(lpfc_enable_rrq, S_IRUGO, lpfc_enable_rrq_show, NULL);
2794 # lpfc_suppress_link_up: Bring link up at initialization
2795 # 0x0 = bring link up (issue MBX_INIT_LINK)
2796 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
2797 # 0x2 = never bring up link
2798 # Default value is 0.
2800 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
2801 LPFC_DELAY_INIT_LINK_INDEFINITELY,
2802 "Suppress Link Up at initialization");
2804 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
2812 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2814 struct Scsi_Host *shost = class_to_shost(dev);
2815 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2817 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
2820 static DEVICE_ATTR(iocb_hw, S_IRUGO,
2821 lpfc_iocb_hw_show, NULL);
2823 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2825 struct Scsi_Host *shost = class_to_shost(dev);
2826 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2828 return snprintf(buf, PAGE_SIZE, "%d\n",
2829 phba->sli.ring[LPFC_ELS_RING].txq_max);
2832 static DEVICE_ATTR(txq_hw, S_IRUGO,
2833 lpfc_txq_hw_show, NULL);
2835 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
2838 struct Scsi_Host *shost = class_to_shost(dev);
2839 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2841 return snprintf(buf, PAGE_SIZE, "%d\n",
2842 phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
2845 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
2846 lpfc_txcmplq_hw_show, NULL);
2848 int lpfc_iocb_cnt = 2;
2849 module_param(lpfc_iocb_cnt, int, S_IRUGO);
2850 MODULE_PARM_DESC(lpfc_iocb_cnt,
2851 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
2852 lpfc_param_show(iocb_cnt);
2853 lpfc_param_init(iocb_cnt, 2, 1, 5);
2854 static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO,
2855 lpfc_iocb_cnt_show, NULL);
2858 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
2859 # until the timer expires. Value range is [0,255]. Default value is 30.
2861 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2862 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
2863 module_param(lpfc_nodev_tmo, int, 0);
2864 MODULE_PARM_DESC(lpfc_nodev_tmo,
2865 "Seconds driver will hold I/O waiting "
2866 "for a device to come back");
2869 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2870 * @dev: class converted to a Scsi_host structure.
2871 * @attr: device attribute, not used.
2872 * @buf: on return contains the dev loss timeout in decimal.
2874 * Returns: size of formatted string.
2877 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
2880 struct Scsi_Host *shost = class_to_shost(dev);
2881 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2883 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
2887 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2888 * @vport: lpfc vport structure pointer.
2889 * @val: contains the nodev timeout value.
2892 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
2893 * a kernel error message is printed and zero is returned.
2894 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2895 * Otherwise nodev tmo is set to the default value.
2898 * zero if already set or if val is in range
2899 * -EINVAL val out of range
2902 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
2904 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
2905 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
2906 if (val != LPFC_DEF_DEVLOSS_TMO)
2907 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2908 "0407 Ignoring nodev_tmo module "
2909 "parameter because devloss_tmo is "
2914 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2915 vport->cfg_nodev_tmo = val;
2916 vport->cfg_devloss_tmo = val;
2919 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2920 "0400 lpfc_nodev_tmo attribute cannot be set to"
2921 " %d, allowed range is [%d, %d]\n",
2922 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2923 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2928 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2929 * @vport: lpfc vport structure pointer.
2932 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
2935 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2937 struct Scsi_Host *shost;
2938 struct lpfc_nodelist *ndlp;
2940 shost = lpfc_shost_from_vport(vport);
2941 spin_lock_irq(shost->host_lock);
2942 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2943 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2944 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
2945 spin_unlock_irq(shost->host_lock);
2949 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2950 * @vport: lpfc vport structure pointer.
2951 * @val: contains the tmo value.
2954 * If the devloss tmo is already set or the vport dev loss tmo has changed
2955 * then a kernel error message is printed and zero is returned.
2956 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2957 * Otherwise nodev tmo is set to the default value.
2960 * zero if already set or if val is in range
2961 * -EINVAL val out of range
2964 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2966 if (vport->dev_loss_tmo_changed ||
2967 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2968 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2969 "0401 Ignoring change to nodev_tmo "
2970 "because devloss_tmo is set.\n");
2973 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2974 vport->cfg_nodev_tmo = val;
2975 vport->cfg_devloss_tmo = val;
2977 * For compat: set the fc_host dev loss so new rports
2978 * will get the value.
2980 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2981 lpfc_update_rport_devloss_tmo(vport);
2984 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2985 "0403 lpfc_nodev_tmo attribute cannot be set to"
2986 "%d, allowed range is [%d, %d]\n",
2987 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2991 lpfc_vport_param_store(nodev_tmo)
2993 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
2994 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
2997 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
2998 # disappear until the timer expires. Value range is [0,255]. Default
3001 module_param(lpfc_devloss_tmo, int, S_IRUGO);
3002 MODULE_PARM_DESC(lpfc_devloss_tmo,
3003 "Seconds driver will hold I/O waiting "
3004 "for a device to come back");
3005 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
3006 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
3007 lpfc_vport_param_show(devloss_tmo)
3010 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
3011 * @vport: lpfc vport structure pointer.
3012 * @val: contains the tmo value.
3015 * If val is in a valid range then set the vport nodev tmo,
3016 * devloss tmo, also set the vport dev loss tmo changed flag.
3017 * Else a kernel error message is printed.
3020 * zero if val is in range
3021 * -EINVAL val out of range
3024 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
3026 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3027 vport->cfg_nodev_tmo = val;
3028 vport->cfg_devloss_tmo = val;
3029 vport->dev_loss_tmo_changed = 1;
3030 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3031 lpfc_update_rport_devloss_tmo(vport);
3035 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3036 "0404 lpfc_devloss_tmo attribute cannot be set to"
3037 " %d, allowed range is [%d, %d]\n",
3038 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3042 lpfc_vport_param_store(devloss_tmo)
3043 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
3044 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
3047 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
3048 # deluged with LOTS of information.
3049 # You can set a bit mask to record specific types of verbose messages:
3050 # See lpfc_logmsh.h for definitions.
3052 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
3053 "Verbose logging bit-mask");
3056 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
3057 # objects that have been registered with the nameserver after login.
3059 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
3060 "Deregister nameserver objects before LOGO");
3063 # lun_queue_depth: This parameter is used to limit the number of outstanding
3064 # commands per FCP LUN. Value range is [1,512]. Default value is 30.
3065 # If this parameter value is greater than 1/8th the maximum number of exchanges
3066 # supported by the HBA port, then the lun queue depth will be reduced to
3067 # 1/8th the maximum number of exchanges.
3069 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512,
3070 "Max number of FCP commands we can queue to a specific LUN");
3073 # tgt_queue_depth: This parameter is used to limit the number of outstanding
3074 # commands per target port. Value range is [10,65535]. Default value is 65535.
3076 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
3077 "Max number of FCP commands we can queue to a specific target port");
3080 # hba_queue_depth: This parameter is used to limit the number of outstanding
3081 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
3082 # value is greater than the maximum number of exchanges supported by the HBA,
3083 # then maximum number of exchanges supported by the HBA is used to determine
3084 # the hba_queue_depth.
3086 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
3087 "Max number of FCP commands we can queue to a lpfc HBA");
3090 # peer_port_login: This parameter allows/prevents logins
3091 # between peer ports hosted on the same physical port.
3092 # When this parameter is set 0 peer ports of same physical port
3093 # are not allowed to login to each other.
3094 # When this parameter is set 1 peer ports of same physical port
3095 # are allowed to login to each other.
3096 # Default value of this parameter is 0.
3098 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
3099 "Allow peer ports on the same physical port to login to each "
3103 # restrict_login: This parameter allows/prevents logins
3104 # between Virtual Ports and remote initiators.
3105 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
3106 # other initiators and will attempt to PLOGI all remote ports.
3107 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
3108 # remote ports and will not attempt to PLOGI to other initiators.
3109 # This parameter does not restrict to the physical port.
3110 # This parameter does not restrict logins to Fabric resident remote ports.
3111 # Default value of this parameter is 1.
3113 static int lpfc_restrict_login = 1;
3114 module_param(lpfc_restrict_login, int, S_IRUGO);
3115 MODULE_PARM_DESC(lpfc_restrict_login,
3116 "Restrict virtual ports login to remote initiators.");
3117 lpfc_vport_param_show(restrict_login);
3120 * lpfc_restrict_login_init - Set the vport restrict login flag
3121 * @vport: lpfc vport structure pointer.
3122 * @val: contains the restrict login value.
3125 * If val is not in a valid range then log a kernel error message and set
3126 * the vport restrict login to one.
3127 * If the port type is physical clear the restrict login flag and return.
3128 * Else set the restrict login flag to val.
3131 * zero if val is in range
3132 * -EINVAL val out of range
3135 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
3137 if (val < 0 || val > 1) {
3138 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3139 "0422 lpfc_restrict_login attribute cannot "
3140 "be set to %d, allowed range is [0, 1]\n",
3142 vport->cfg_restrict_login = 1;
3145 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3146 vport->cfg_restrict_login = 0;
3149 vport->cfg_restrict_login = val;
3154 * lpfc_restrict_login_set - Set the vport restrict login flag
3155 * @vport: lpfc vport structure pointer.
3156 * @val: contains the restrict login value.
3159 * If val is not in a valid range then log a kernel error message and set
3160 * the vport restrict login to one.
3161 * If the port type is physical and the val is not zero log a kernel
3162 * error message, clear the restrict login flag and return zero.
3163 * Else set the restrict login flag to val.
3166 * zero if val is in range
3167 * -EINVAL val out of range
3170 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
3172 if (val < 0 || val > 1) {
3173 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3174 "0425 lpfc_restrict_login attribute cannot "
3175 "be set to %d, allowed range is [0, 1]\n",
3177 vport->cfg_restrict_login = 1;
3180 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
3181 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3182 "0468 lpfc_restrict_login must be 0 for "
3183 "Physical ports.\n");
3184 vport->cfg_restrict_login = 0;
3187 vport->cfg_restrict_login = val;
3190 lpfc_vport_param_store(restrict_login);
3191 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
3192 lpfc_restrict_login_show, lpfc_restrict_login_store);
3195 # Some disk devices have a "select ID" or "select Target" capability.
3196 # From a protocol standpoint "select ID" usually means select the
3197 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
3198 # annex" which contains a table that maps a "select ID" (a number
3199 # between 0 and 7F) to an ALPA. By default, for compatibility with
3200 # older drivers, the lpfc driver scans this table from low ALPA to high
3203 # Turning on the scan-down variable (on = 1, off = 0) will
3204 # cause the lpfc driver to use an inverted table, effectively
3205 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
3207 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
3208 # and will not work across a fabric. Also this parameter will take
3209 # effect only in the case when ALPA map is not available.)
3211 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
3212 "Start scanning for devices from highest ALPA to lowest");
3215 # lpfc_topology: link topology for init link
3216 # 0x0 = attempt loop mode then point-to-point
3217 # 0x01 = internal loopback mode
3218 # 0x02 = attempt point-to-point mode only
3219 # 0x04 = attempt loop mode only
3220 # 0x06 = attempt point-to-point mode then loop
3221 # Set point-to-point mode if you want to run as an N_Port.
3222 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
3223 # Default value is 0.
3227 * lpfc_topology_set - Set the adapters topology field
3228 * @phba: lpfc_hba pointer.
3229 * @val: topology value.
3232 * If val is in a valid range then set the adapter's topology field and
3233 * issue a lip; if the lip fails reset the topology to the old value.
3235 * If the value is not in range log a kernel error message and return an error.
3238 * zero if val is in range and lip okay
3239 * non-zero return value from lpfc_issue_lip()
3240 * -EINVAL val out of range
3243 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
3244 const char *buf, size_t count)
3246 struct Scsi_Host *shost = class_to_shost(dev);
3247 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3248 struct lpfc_hba *phba = vport->phba;
3251 const char *val_buf = buf;
3255 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
3257 val_buf = &buf[strlen("nolip ")];
3260 if (!isdigit(val_buf[0]))
3262 if (sscanf(val_buf, "%i", &val) != 1)
3265 if (val >= 0 && val <= 6) {
3266 prev_val = phba->cfg_topology;
3267 phba->cfg_topology = val;
3268 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
3270 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3271 "3113 Loop mode not supported at speed %d\n",
3272 phba->cfg_link_speed);
3273 phba->cfg_topology = prev_val;
3279 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3280 "3054 lpfc_topology changed from %d to %d\n",
3282 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4)
3283 phba->fc_topology_changed = 1;
3284 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3286 phba->cfg_topology = prev_val;
3291 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3292 "%d:0467 lpfc_topology attribute cannot be set to %d, "
3293 "allowed range is [0, 6]\n",
3297 static int lpfc_topology = 0;
3298 module_param(lpfc_topology, int, S_IRUGO);
3299 MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
3300 lpfc_param_show(topology)
3301 lpfc_param_init(topology, 0, 0, 6)
3302 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
3303 lpfc_topology_show, lpfc_topology_store);
3306 * lpfc_static_vport_show: Read callback function for
3307 * lpfc_static_vport sysfs file.
3308 * @dev: Pointer to class device object.
3309 * @attr: device attribute structure.
3310 * @buf: Data buffer.
3312 * This function is the read call back function for
3313 * lpfc_static_vport sysfs file. The lpfc_static_vport
3314 * sysfs file report the mageability of the vport.
3317 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
3320 struct Scsi_Host *shost = class_to_shost(dev);
3321 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3322 if (vport->vport_flag & STATIC_VPORT)
3323 sprintf(buf, "1\n");
3325 sprintf(buf, "0\n");
3331 * Sysfs attribute to control the statistical data collection.
3333 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
3334 lpfc_static_vport_show, NULL);
3337 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
3338 * @dev: Pointer to class device.
3339 * @buf: Data buffer.
3340 * @count: Size of the data buffer.
3342 * This function get called when an user write to the lpfc_stat_data_ctrl
3343 * sysfs file. This function parse the command written to the sysfs file
3344 * and take appropriate action. These commands are used for controlling
3345 * driver statistical data collection.
3346 * Following are the command this function handles.
3348 * setbucket <bucket_type> <base> <step>
3349 * = Set the latency buckets.
3350 * destroybucket = destroy all the buckets.
3351 * start = start data collection
3352 * stop = stop data collection
3353 * reset = reset the collected data
3356 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
3357 const char *buf, size_t count)
3359 struct Scsi_Host *shost = class_to_shost(dev);
3360 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3361 struct lpfc_hba *phba = vport->phba;
3362 #define LPFC_MAX_DATA_CTRL_LEN 1024
3363 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
3365 char *str_ptr, *token;
3366 struct lpfc_vport **vports;
3367 struct Scsi_Host *v_shost;
3368 char *bucket_type_str, *base_str, *step_str;
3369 unsigned long base, step, bucket_type;
3371 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
3372 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
3375 strcpy(bucket_data, buf);
3376 str_ptr = &bucket_data[0];
3377 /* Ignore this token - this is command token */
3378 token = strsep(&str_ptr, "\t ");
3382 bucket_type_str = strsep(&str_ptr, "\t ");
3383 if (!bucket_type_str)
3386 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
3387 bucket_type = LPFC_LINEAR_BUCKET;
3388 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
3389 bucket_type = LPFC_POWER2_BUCKET;
3393 base_str = strsep(&str_ptr, "\t ");
3396 base = simple_strtoul(base_str, NULL, 0);
3398 step_str = strsep(&str_ptr, "\t ");
3401 step = simple_strtoul(step_str, NULL, 0);
3405 /* Block the data collection for every vport */
3406 vports = lpfc_create_vport_work_array(phba);
3410 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3411 v_shost = lpfc_shost_from_vport(vports[i]);
3412 spin_lock_irq(v_shost->host_lock);
3413 /* Block and reset data collection */
3414 vports[i]->stat_data_blocked = 1;
3415 if (vports[i]->stat_data_enabled)
3416 lpfc_vport_reset_stat_data(vports[i]);
3417 spin_unlock_irq(v_shost->host_lock);
3420 /* Set the bucket attributes */
3421 phba->bucket_type = bucket_type;
3422 phba->bucket_base = base;
3423 phba->bucket_step = step;
3425 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3426 v_shost = lpfc_shost_from_vport(vports[i]);
3428 /* Unblock data collection */
3429 spin_lock_irq(v_shost->host_lock);
3430 vports[i]->stat_data_blocked = 0;
3431 spin_unlock_irq(v_shost->host_lock);
3433 lpfc_destroy_vport_work_array(phba, vports);
3437 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
3438 vports = lpfc_create_vport_work_array(phba);
3442 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3443 v_shost = lpfc_shost_from_vport(vports[i]);
3444 spin_lock_irq(shost->host_lock);
3445 vports[i]->stat_data_blocked = 1;
3446 lpfc_free_bucket(vport);
3447 vport->stat_data_enabled = 0;
3448 vports[i]->stat_data_blocked = 0;
3449 spin_unlock_irq(shost->host_lock);
3451 lpfc_destroy_vport_work_array(phba, vports);
3452 phba->bucket_type = LPFC_NO_BUCKET;
3453 phba->bucket_base = 0;
3454 phba->bucket_step = 0;
3458 if (!strncmp(buf, "start", strlen("start"))) {
3459 /* If no buckets configured return error */
3460 if (phba->bucket_type == LPFC_NO_BUCKET)
3462 spin_lock_irq(shost->host_lock);
3463 if (vport->stat_data_enabled) {
3464 spin_unlock_irq(shost->host_lock);
3467 lpfc_alloc_bucket(vport);
3468 vport->stat_data_enabled = 1;
3469 spin_unlock_irq(shost->host_lock);
3473 if (!strncmp(buf, "stop", strlen("stop"))) {
3474 spin_lock_irq(shost->host_lock);
3475 if (vport->stat_data_enabled == 0) {
3476 spin_unlock_irq(shost->host_lock);
3479 lpfc_free_bucket(vport);
3480 vport->stat_data_enabled = 0;
3481 spin_unlock_irq(shost->host_lock);
3485 if (!strncmp(buf, "reset", strlen("reset"))) {
3486 if ((phba->bucket_type == LPFC_NO_BUCKET)
3487 || !vport->stat_data_enabled)
3489 spin_lock_irq(shost->host_lock);
3490 vport->stat_data_blocked = 1;
3491 lpfc_vport_reset_stat_data(vport);
3492 vport->stat_data_blocked = 0;
3493 spin_unlock_irq(shost->host_lock);
3501 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
3502 * @dev: Pointer to class device object.
3503 * @buf: Data buffer.
3505 * This function is the read call back function for
3506 * lpfc_stat_data_ctrl sysfs file. This function report the
3507 * current statistical data collection state.
3510 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
3513 struct Scsi_Host *shost = class_to_shost(dev);
3514 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3515 struct lpfc_hba *phba = vport->phba;
3519 unsigned long bucket_value;
3521 switch (phba->bucket_type) {
3522 case LPFC_LINEAR_BUCKET:
3523 bucket_type = "linear";
3525 case LPFC_POWER2_BUCKET:
3526 bucket_type = "power2";
3529 bucket_type = "No Bucket";
3533 sprintf(&buf[index], "Statistical Data enabled :%d, "
3534 "blocked :%d, Bucket type :%s, Bucket base :%d,"
3535 " Bucket step :%d\nLatency Ranges :",
3536 vport->stat_data_enabled, vport->stat_data_blocked,
3537 bucket_type, phba->bucket_base, phba->bucket_step);
3538 index = strlen(buf);
3539 if (phba->bucket_type != LPFC_NO_BUCKET) {
3540 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
3541 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
3542 bucket_value = phba->bucket_base +
3543 phba->bucket_step * i;
3545 bucket_value = phba->bucket_base +
3546 (1 << i) * phba->bucket_step;
3548 if (index + 10 > PAGE_SIZE)
3550 sprintf(&buf[index], "%08ld ", bucket_value);
3551 index = strlen(buf);
3554 sprintf(&buf[index], "\n");
3559 * Sysfs attribute to control the statistical data collection.
3561 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
3562 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
3565 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
3569 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
3572 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
3573 #define MAX_STAT_DATA_SIZE_PER_TARGET \
3574 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
3578 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
3580 * @kobj: Pointer to the kernel object
3581 * @bin_attr: Attribute object
3582 * @buff: Buffer pointer
3584 * @count: Buffer size
3586 * This function is the read call back function for lpfc_drvr_stat_data
3587 * sysfs file. This function export the statistical data to user
3591 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
3592 struct bin_attribute *bin_attr,
3593 char *buf, loff_t off, size_t count)
3595 struct device *dev = container_of(kobj, struct device,
3597 struct Scsi_Host *shost = class_to_shost(dev);
3598 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3599 struct lpfc_hba *phba = vport->phba;
3600 int i = 0, index = 0;
3601 unsigned long nport_index;
3602 struct lpfc_nodelist *ndlp = NULL;
3603 nport_index = (unsigned long)off /
3604 MAX_STAT_DATA_SIZE_PER_TARGET;
3606 if (!vport->stat_data_enabled || vport->stat_data_blocked
3607 || (phba->bucket_type == LPFC_NO_BUCKET))
3610 spin_lock_irq(shost->host_lock);
3611 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3612 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
3615 if (nport_index > 0) {
3620 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
3624 if (!ndlp->lat_data)
3628 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
3629 ndlp->nlp_portname.u.wwn[0],
3630 ndlp->nlp_portname.u.wwn[1],
3631 ndlp->nlp_portname.u.wwn[2],
3632 ndlp->nlp_portname.u.wwn[3],
3633 ndlp->nlp_portname.u.wwn[4],
3634 ndlp->nlp_portname.u.wwn[5],
3635 ndlp->nlp_portname.u.wwn[6],
3636 ndlp->nlp_portname.u.wwn[7]);
3638 index = strlen(buf);
3640 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
3641 sprintf(&buf[index], "%010u,",
3642 ndlp->lat_data[i].cmd_count);
3643 index = strlen(buf);
3645 sprintf(&buf[index], "\n");
3646 index = strlen(buf);
3648 spin_unlock_irq(shost->host_lock);
3652 static struct bin_attribute sysfs_drvr_stat_data_attr = {
3654 .name = "lpfc_drvr_stat_data",
3657 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
3658 .read = sysfs_drvr_stat_data_read,
3663 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
3665 # Value range is [0,16]. Default value is 0.
3668 * lpfc_link_speed_set - Set the adapters link speed
3669 * @phba: lpfc_hba pointer.
3670 * @val: link speed value.
3673 * If val is in a valid range then set the adapter's link speed field and
3674 * issue a lip; if the lip fails reset the link speed to the old value.
3677 * If the value is not in range log a kernel error message and return an error.
3680 * zero if val is in range and lip okay.
3681 * non-zero return value from lpfc_issue_lip()
3682 * -EINVAL val out of range
3685 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
3686 const char *buf, size_t count)
3688 struct Scsi_Host *shost = class_to_shost(dev);
3689 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3690 struct lpfc_hba *phba = vport->phba;
3691 int val = LPFC_USER_LINK_SPEED_AUTO;
3693 const char *val_buf = buf;
3697 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
3699 val_buf = &buf[strlen("nolip ")];
3702 if (!isdigit(val_buf[0]))
3704 if (sscanf(val_buf, "%i", &val) != 1)
3707 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3708 "3055 lpfc_link_speed changed from %d to %d %s\n",
3709 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
3711 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
3712 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
3713 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
3714 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
3715 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
3716 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb))) {
3717 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3718 "2879 lpfc_link_speed attribute cannot be set "
3719 "to %d. Speed is not supported by this port.\n",
3723 if (val == LPFC_USER_LINK_SPEED_16G &&
3724 phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3726 "3112 lpfc_link_speed attribute cannot be set "
3727 "to %d. Speed is not supported in loop mode.\n",
3731 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3732 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3733 prev_val = phba->cfg_link_speed;
3734 phba->cfg_link_speed = val;
3738 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3740 phba->cfg_link_speed = prev_val;
3745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3746 "0469 lpfc_link_speed attribute cannot be set to %d, "
3747 "allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val);
3751 static int lpfc_link_speed = 0;
3752 module_param(lpfc_link_speed, int, S_IRUGO);
3753 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
3754 lpfc_param_show(link_speed)
3757 * lpfc_link_speed_init - Set the adapters link speed
3758 * @phba: lpfc_hba pointer.
3759 * @val: link speed value.
3762 * If val is in a valid range then set the adapter's link speed field.
3765 * If the value is not in range log a kernel error message, clear the link
3766 * speed and return an error.
3769 * zero if val saved.
3770 * -EINVAL val out of range
3773 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
3775 if (val == LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
3776 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3777 "3111 lpfc_link_speed of %d cannot "
3778 "support loop mode, setting topology to default.\n",
3780 phba->cfg_topology = 0;
3782 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3783 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3784 phba->cfg_link_speed = val;
3787 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3788 "0405 lpfc_link_speed attribute cannot "
3789 "be set to %d, allowed values are "
3790 "["LPFC_LINK_SPEED_STRING"]\n", val);
3791 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
3795 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
3796 lpfc_link_speed_show, lpfc_link_speed_store);
3799 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
3800 # 0 = aer disabled or not supported
3801 # 1 = aer supported and enabled (default)
3802 # Value range is [0,1]. Default value is 1.
3806 * lpfc_aer_support_store - Set the adapter for aer support
3808 * @dev: class device that is converted into a Scsi_host.
3809 * @attr: device attribute, not used.
3810 * @buf: containing enable or disable aer flag.
3811 * @count: unused variable.
3814 * If the val is 1 and currently the device's AER capability was not
3815 * enabled, invoke the kernel's enable AER helper routine, trying to
3816 * enable the device's AER capability. If the helper routine enabling
3817 * AER returns success, update the device's cfg_aer_support flag to
3818 * indicate AER is supported by the device; otherwise, if the device
3819 * AER capability is already enabled to support AER, then do nothing.
3821 * If the val is 0 and currently the device's AER support was enabled,
3822 * invoke the kernel's disable AER helper routine. After that, update
3823 * the device's cfg_aer_support flag to indicate AER is not supported
3824 * by the device; otherwise, if the device AER capability is already
3825 * disabled from supporting AER, then do nothing.
3828 * length of the buf on success if val is in range the intended mode
3830 * -EINVAL if val out of range or intended mode is not supported.
3833 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
3834 const char *buf, size_t count)
3836 struct Scsi_Host *shost = class_to_shost(dev);
3837 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
3838 struct lpfc_hba *phba = vport->phba;
3839 int val = 0, rc = -EINVAL;
3841 if (!isdigit(buf[0]))
3843 if (sscanf(buf, "%i", &val) != 1)
3848 if (phba->hba_flag & HBA_AER_ENABLED) {
3849 rc = pci_disable_pcie_error_reporting(phba->pcidev);
3851 spin_lock_irq(&phba->hbalock);
3852 phba->hba_flag &= ~HBA_AER_ENABLED;
3853 spin_unlock_irq(&phba->hbalock);
3854 phba->cfg_aer_support = 0;
3859 phba->cfg_aer_support = 0;
3864 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
3865 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3867 spin_lock_irq(&phba->hbalock);
3868 phba->hba_flag |= HBA_AER_ENABLED;
3869 spin_unlock_irq(&phba->hbalock);
3870 phba->cfg_aer_support = 1;
3875 phba->cfg_aer_support = 1;
3886 static int lpfc_aer_support = 1;
3887 module_param(lpfc_aer_support, int, S_IRUGO);
3888 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
3889 lpfc_param_show(aer_support)
3892 * lpfc_aer_support_init - Set the initial adapters aer support flag
3893 * @phba: lpfc_hba pointer.
3894 * @val: enable aer or disable aer flag.
3897 * If val is in a valid range [0,1], then set the adapter's initial
3898 * cfg_aer_support field. It will be up to the driver's probe_one
3899 * routine to determine whether the device's AER support can be set
3903 * If the value is not in range log a kernel error message, and
3904 * choose the default value of setting AER support and return.
3907 * zero if val saved.
3908 * -EINVAL val out of range
3911 lpfc_aer_support_init(struct lpfc_hba *phba, int val)
3913 if (val == 0 || val == 1) {
3914 phba->cfg_aer_support = val;
3917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3918 "2712 lpfc_aer_support attribute value %d out "
3919 "of range, allowed values are 0|1, setting it "
3920 "to default value of 1\n", val);
3921 /* By default, try to enable AER on a device */
3922 phba->cfg_aer_support = 1;
3926 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
3927 lpfc_aer_support_show, lpfc_aer_support_store);
3930 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
3931 * @dev: class device that is converted into a Scsi_host.
3932 * @attr: device attribute, not used.
3933 * @buf: containing flag 1 for aer cleanup state.
3934 * @count: unused variable.
3937 * If the @buf contains 1 and the device currently has the AER support
3938 * enabled, then invokes the kernel AER helper routine
3939 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
3940 * error status register.
3945 * -EINVAL if the buf does not contain the 1 or the device is not currently
3946 * enabled with the AER support.
3949 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
3950 const char *buf, size_t count)
3952 struct Scsi_Host *shost = class_to_shost(dev);
3953 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3954 struct lpfc_hba *phba = vport->phba;
3957 if (!isdigit(buf[0]))
3959 if (sscanf(buf, "%i", &val) != 1)
3964 if (phba->hba_flag & HBA_AER_ENABLED)
3965 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
3973 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
3974 lpfc_aer_cleanup_state);
3977 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
3979 * @dev: class device that is converted into a Scsi_host.
3980 * @attr: device attribute, not used.
3981 * @buf: containing the string the number of vfs to be enabled.
3982 * @count: unused variable.
3985 * When this api is called either through user sysfs, the driver shall
3986 * try to enable or disable SR-IOV virtual functions according to the
3989 * If zero virtual function has been enabled to the physical function,
3990 * the driver shall invoke the pci enable virtual function api trying
3991 * to enable the virtual functions. If the nr_vfn provided is greater
3992 * than the maximum supported, the maximum virtual function number will
3993 * be used for invoking the api; otherwise, the nr_vfn provided shall
3994 * be used for invoking the api. If the api call returned success, the
3995 * actual number of virtual functions enabled will be set to the driver
3996 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
3997 * cfg_sriov_nr_virtfn remains zero.
3999 * If none-zero virtual functions have already been enabled to the
4000 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
4001 * -EINVAL will be returned and the driver does nothing;
4003 * If the nr_vfn provided is zero and none-zero virtual functions have
4004 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
4005 * disabling virtual function api shall be invoded to disable all the
4006 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
4007 * zero. Otherwise, if zero virtual function has been enabled, do
4011 * length of the buf on success if val is in range the intended mode
4013 * -EINVAL if val out of range or intended mode is not supported.
4016 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
4017 const char *buf, size_t count)
4019 struct Scsi_Host *shost = class_to_shost(dev);
4020 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4021 struct lpfc_hba *phba = vport->phba;
4022 struct pci_dev *pdev = phba->pcidev;
4023 int val = 0, rc = -EINVAL;
4025 /* Sanity check on user data */
4026 if (!isdigit(buf[0]))
4028 if (sscanf(buf, "%i", &val) != 1)
4033 /* Request disabling virtual functions */
4035 if (phba->cfg_sriov_nr_virtfn > 0) {
4036 pci_disable_sriov(pdev);
4037 phba->cfg_sriov_nr_virtfn = 0;
4042 /* Request enabling virtual functions */
4043 if (phba->cfg_sriov_nr_virtfn > 0) {
4044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4045 "3018 There are %d virtual functions "
4046 "enabled on physical function.\n",
4047 phba->cfg_sriov_nr_virtfn);
4051 if (val <= LPFC_MAX_VFN_PER_PFN)
4052 phba->cfg_sriov_nr_virtfn = val;
4054 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4055 "3019 Enabling %d virtual functions is not "
4060 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
4062 phba->cfg_sriov_nr_virtfn = 0;
4070 static int lpfc_sriov_nr_virtfn = LPFC_DEF_VFN_PER_PFN;
4071 module_param(lpfc_sriov_nr_virtfn, int, S_IRUGO|S_IWUSR);
4072 MODULE_PARM_DESC(lpfc_sriov_nr_virtfn, "Enable PCIe device SR-IOV virtual fn");
4073 lpfc_param_show(sriov_nr_virtfn)
4076 * lpfc_sriov_nr_virtfn_init - Set the initial sr-iov virtual function enable
4077 * @phba: lpfc_hba pointer.
4078 * @val: link speed value.
4081 * If val is in a valid range [0,255], then set the adapter's initial
4082 * cfg_sriov_nr_virtfn field. If it's greater than the maximum, the maximum
4083 * number shall be used instead. It will be up to the driver's probe_one
4084 * routine to determine whether the device's SR-IOV is supported or not.
4087 * zero if val saved.
4088 * -EINVAL val out of range
4091 lpfc_sriov_nr_virtfn_init(struct lpfc_hba *phba, int val)
4093 if (val >= 0 && val <= LPFC_MAX_VFN_PER_PFN) {
4094 phba->cfg_sriov_nr_virtfn = val;
4098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4099 "3017 Enabling %d virtual functions is not "
4103 static DEVICE_ATTR(lpfc_sriov_nr_virtfn, S_IRUGO | S_IWUSR,
4104 lpfc_sriov_nr_virtfn_show, lpfc_sriov_nr_virtfn_store);
4107 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade
4109 * @dev: class device that is converted into a Scsi_host.
4110 * @attr: device attribute, not used.
4111 * @buf: containing the string the number of vfs to be enabled.
4112 * @count: unused variable.
4117 * length of the buf on success if val is in range the intended mode
4119 * -EINVAL if val out of range or intended mode is not supported.
4122 lpfc_request_firmware_upgrade_store(struct device *dev,
4123 struct device_attribute *attr,
4124 const char *buf, size_t count)
4126 struct Scsi_Host *shost = class_to_shost(dev);
4127 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4128 struct lpfc_hba *phba = vport->phba;
4129 int val = 0, rc = -EINVAL;
4131 /* Sanity check on user data */
4132 if (!isdigit(buf[0]))
4134 if (sscanf(buf, "%i", &val) != 1)
4139 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE);
4147 static int lpfc_req_fw_upgrade;
4148 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR);
4149 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade");
4150 lpfc_param_show(request_firmware_upgrade)
4153 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade
4154 * @phba: lpfc_hba pointer.
4158 * Set the initial Linux generic firmware upgrade enable or disable flag.
4161 * zero if val saved.
4162 * -EINVAL val out of range
4165 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val)
4167 if (val >= 0 && val <= 1) {
4168 phba->cfg_request_firmware_upgrade = val;
4173 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR,
4174 lpfc_request_firmware_upgrade_show,
4175 lpfc_request_firmware_upgrade_store);
4178 * lpfc_fcp_imax_store
4180 * @dev: class device that is converted into a Scsi_host.
4181 * @attr: device attribute, not used.
4182 * @buf: string with the number of fast-path FCP interrupts per second.
4183 * @count: unused variable.
4186 * If val is in a valid range [636,651042], then set the adapter's
4187 * maximum number of fast-path FCP interrupts per second.
4190 * length of the buf on success if val is in range the intended mode
4192 * -EINVAL if val out of range or intended mode is not supported.
4195 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
4196 const char *buf, size_t count)
4198 struct Scsi_Host *shost = class_to_shost(dev);
4199 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4200 struct lpfc_hba *phba = vport->phba;
4203 /* fcp_imax is only valid for SLI4 */
4204 if (phba->sli_rev != LPFC_SLI_REV4)
4207 /* Sanity check on user data */
4208 if (!isdigit(buf[0]))
4210 if (sscanf(buf, "%i", &val) != 1)
4214 * Value range for the HBA is [5000,5000000]
4215 * The value for each EQ depends on how many EQs are configured.
4217 if (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)
4220 phba->cfg_fcp_imax = (uint32_t)val;
4221 for (i = 0; i < phba->cfg_fcp_io_channel; i += LPFC_MAX_EQ_DELAY)
4222 lpfc_modify_fcp_eq_delay(phba, i);
4228 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
4231 # Value range is [5,000 to 5,000,000]. Default value is 50,000.
4233 static int lpfc_fcp_imax = LPFC_DEF_IMAX;
4234 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
4235 MODULE_PARM_DESC(lpfc_fcp_imax,
4236 "Set the maximum number of FCP interrupts per second per HBA");
4237 lpfc_param_show(fcp_imax)
4240 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable
4241 * @phba: lpfc_hba pointer.
4242 * @val: link speed value.
4245 * If val is in a valid range [636,651042], then initialize the adapter's
4246 * maximum number of fast-path FCP interrupts per second.
4249 * zero if val saved.
4250 * -EINVAL val out of range
4253 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
4255 if (phba->sli_rev != LPFC_SLI_REV4) {
4256 phba->cfg_fcp_imax = 0;
4260 if (val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) {
4261 phba->cfg_fcp_imax = val;
4265 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4266 "3016 fcp_imax: %d out of range, using default\n", val);
4267 phba->cfg_fcp_imax = LPFC_DEF_IMAX;
4272 static DEVICE_ATTR(lpfc_fcp_imax, S_IRUGO | S_IWUSR,
4273 lpfc_fcp_imax_show, lpfc_fcp_imax_store);
4276 * lpfc_state_show - Display current driver CPU affinity
4277 * @dev: class converted to a Scsi_host structure.
4278 * @attr: device attribute, not used.
4279 * @buf: on return contains text describing the state of the link.
4281 * Returns: size of formatted string.
4284 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr,
4287 struct Scsi_Host *shost = class_to_shost(dev);
4288 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4289 struct lpfc_hba *phba = vport->phba;
4290 struct lpfc_vector_map_info *cpup;
4293 if ((phba->sli_rev != LPFC_SLI_REV4) ||
4294 (phba->intr_type != MSIX))
4297 switch (phba->cfg_fcp_cpu_map) {
4299 len += snprintf(buf + len, PAGE_SIZE-len,
4300 "fcp_cpu_map: No mapping (%d)\n",
4301 phba->cfg_fcp_cpu_map);
4304 len += snprintf(buf + len, PAGE_SIZE-len,
4305 "fcp_cpu_map: HBA centric mapping (%d): "
4307 phba->cfg_fcp_cpu_map,
4308 phba->sli4_hba.num_online_cpu);
4311 len += snprintf(buf + len, PAGE_SIZE-len,
4312 "fcp_cpu_map: Driver centric mapping (%d): "
4314 phba->cfg_fcp_cpu_map,
4315 phba->sli4_hba.num_online_cpu);
4319 while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_present_cpu) {
4320 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
4322 /* margin should fit in this and the truncated message */
4323 if (cpup->irq == LPFC_VECTOR_MAP_EMPTY)
4324 len += snprintf(buf + len, PAGE_SIZE-len,
4325 "CPU %02d io_chan %02d "
4326 "physid %d coreid %d\n",
4327 phba->sli4_hba.curr_disp_cpu,
4328 cpup->channel_id, cpup->phys_id,
4331 len += snprintf(buf + len, PAGE_SIZE-len,
4332 "CPU %02d io_chan %02d "
4333 "physid %d coreid %d IRQ %d\n",
4334 phba->sli4_hba.curr_disp_cpu,
4335 cpup->channel_id, cpup->phys_id,
4336 cpup->core_id, cpup->irq);
4338 phba->sli4_hba.curr_disp_cpu++;
4340 /* display max number of CPUs keeping some margin */
4341 if (phba->sli4_hba.curr_disp_cpu <
4342 phba->sli4_hba.num_present_cpu &&
4343 (len >= (PAGE_SIZE - 64))) {
4344 len += snprintf(buf + len, PAGE_SIZE-len, "more...\n");
4349 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_present_cpu)
4350 phba->sli4_hba.curr_disp_cpu = 0;
4356 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors
4357 * @dev: class device that is converted into a Scsi_host.
4358 * @attr: device attribute, not used.
4359 * @buf: one or more lpfc_polling_flags values.
4363 * -EINVAL - Not implemented yet.
4366 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr,
4367 const char *buf, size_t count)
4369 int status = -EINVAL;
4374 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors
4377 # Value range is [0 to 2]. Default value is LPFC_DRIVER_CPU_MAP (2).
4378 # 0 - Do not affinitze IRQ vectors
4379 # 1 - Affintize HBA vectors with respect to each HBA
4380 # (start with CPU0 for each HBA)
4381 # 2 - Affintize HBA vectors with respect to the entire driver
4382 # (round robin thru all CPUs across all HBAs)
4384 static int lpfc_fcp_cpu_map = LPFC_DRIVER_CPU_MAP;
4385 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR);
4386 MODULE_PARM_DESC(lpfc_fcp_cpu_map,
4387 "Defines how to map CPUs to IRQ vectors per HBA");
4390 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable
4391 * @phba: lpfc_hba pointer.
4392 * @val: link speed value.
4395 * If val is in a valid range [0-2], then affinitze the adapter's
4399 * zero if val saved.
4400 * -EINVAL val out of range
4403 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val)
4405 if (phba->sli_rev != LPFC_SLI_REV4) {
4406 phba->cfg_fcp_cpu_map = 0;
4410 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) {
4411 phba->cfg_fcp_cpu_map = val;
4415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4416 "3326 fcp_cpu_map: %d out of range, using default\n",
4418 phba->cfg_fcp_cpu_map = LPFC_DRIVER_CPU_MAP;
4423 static DEVICE_ATTR(lpfc_fcp_cpu_map, S_IRUGO | S_IWUSR,
4424 lpfc_fcp_cpu_map_show, lpfc_fcp_cpu_map_store);
4427 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
4428 # Value range is [2,3]. Default value is 3.
4430 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
4431 "Select Fibre Channel class of service for FCP sequences");
4434 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
4435 # is [0,1]. Default value is 0.
4437 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
4438 "Use ADISC on rediscovery to authenticate FCP devices");
4441 # lpfc_first_burst_size: First burst size to use on the NPorts
4442 # that support first burst.
4443 # Value range is [0,65536]. Default value is 0.
4445 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536,
4446 "First burst size for Targets that support first burst");
4449 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
4450 # depth. Default value is 0. When the value of this parameter is zero the
4451 # SCSI command completion time is not used for controlling I/O queue depth. When
4452 # the parameter is set to a non-zero value, the I/O queue depth is controlled
4453 # to limit the I/O completion time to the parameter value.
4454 # The value is set in milliseconds.
4456 static int lpfc_max_scsicmpl_time;
4457 module_param(lpfc_max_scsicmpl_time, int, S_IRUGO);
4458 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
4459 "Use command completion time to control queue depth");
4460 lpfc_vport_param_show(max_scsicmpl_time);
4461 lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
4463 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
4465 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4466 struct lpfc_nodelist *ndlp, *next_ndlp;
4468 if (val == vport->cfg_max_scsicmpl_time)
4470 if ((val < 0) || (val > 60000))
4472 vport->cfg_max_scsicmpl_time = val;
4474 spin_lock_irq(shost->host_lock);
4475 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4476 if (!NLP_CHK_NODE_ACT(ndlp))
4478 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4480 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4482 spin_unlock_irq(shost->host_lock);
4485 lpfc_vport_param_store(max_scsicmpl_time);
4486 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
4487 lpfc_max_scsicmpl_time_show,
4488 lpfc_max_scsicmpl_time_store);
4491 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
4492 # range is [0,1]. Default value is 0.
4494 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
4497 # lpfc_fcp_io_sched: Determine scheduling algrithmn for issuing FCP cmds
4498 # range is [0,1]. Default value is 0.
4499 # For [0], FCP commands are issued to Work Queues ina round robin fashion.
4500 # For [1], FCP commands are issued to a Work Queue associated with the
4502 # It would be set to 1 by the driver if it's able to set up cpu affinity
4503 # for FCP I/Os through Work Queue associated with the current CPU. Otherwise,
4504 # roundrobin scheduling of FCP I/Os through WQs will be used.
4506 LPFC_ATTR_RW(fcp_io_sched, 0, 0, 1, "Determine scheduling algorithm for "
4507 "issuing commands [0] - Round Robin, [1] - Current CPU");
4510 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior
4511 # range is [0,1]. Default value is 0.
4512 # For [0], bus reset issues target reset to ALL devices
4513 # For [1], bus reset issues target reset to non-FCP2 devices
4515 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for "
4516 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset");
4520 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
4521 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
4522 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
4523 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
4524 # cr_delay is set to 0.
4526 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
4527 "interrupt response is generated");
4529 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
4530 "interrupt response is generated");
4533 # lpfc_multi_ring_support: Determines how many rings to spread available
4534 # cmd/rsp IOCB entries across.
4535 # Value range is [1,2]. Default value is 1.
4537 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
4538 "SLI rings to spread IOCB entries across");
4541 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
4542 # identifies what rctl value to configure the additional ring for.
4543 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
4545 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
4546 255, "Identifies RCTL for additional ring configuration");
4549 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
4550 # identifies what type value to configure the additional ring for.
4551 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
4553 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
4554 255, "Identifies TYPE for additional ring configuration");
4557 # lpfc_fdmi_on: controls FDMI support.
4558 # 0 = no FDMI support
4559 # 1 = support FDMI without attribute of hostname
4560 # 2 = support FDMI with attribute of hostname
4561 # Value range [0,2]. Default value is 0.
4563 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
4566 # Specifies the maximum number of ELS cmds we can have outstanding (for
4567 # discovery). Value range is [1,64]. Default value = 32.
4569 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
4570 "during discovery");
4573 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that
4574 # will be scanned by the SCSI midlayer when sequential scanning is
4575 # used; and is also the highest LUN ID allowed when the SCSI midlayer
4576 # parses REPORT_LUN responses. The lpfc driver has no LUN count or
4577 # LUN ID limit, but the SCSI midlayer requires this field for the uses
4578 # above. The lpfc driver limits the default value to 255 for two reasons.
4579 # As it bounds the sequential scan loop, scanning for thousands of luns
4580 # on a target can take minutes of wall clock time. Additionally,
4581 # there are FC targets, such as JBODs, that only recognize 8-bits of
4582 # LUN ID. When they receive a value greater than 8 bits, they chop off
4583 # the high order bits. In other words, they see LUN IDs 0, 256, 512,
4584 # and so on all as LUN ID 0. This causes the linux kernel, which sees
4585 # valid responses at each of the LUN IDs, to believe there are multiple
4586 # devices present, when in fact, there is only 1.
4587 # A customer that is aware of their target behaviors, and the results as
4588 # indicated above, is welcome to increase the lpfc_max_luns value.
4589 # As mentioned, this value is not used by the lpfc driver, only the
4591 # Value range is [0,65535]. Default value is 255.
4592 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
4594 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID");
4597 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
4598 # Value range is [1,255], default value is 10.
4600 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
4601 "Milliseconds driver will wait between polling FCP ring");
4604 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands
4605 # to complete in seconds. Value range is [5,180], default value is 60.
4607 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180,
4608 "Maximum time to wait for task management commands to complete");
4610 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
4611 # support this feature
4614 # 2 = MSI-X enabled (default)
4615 # Value range is [0,2]. Default value is 2.
4617 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
4618 "MSI-X (2), if possible");
4621 # lpfc_fcp_io_channel: Set the number of FCP EQ/CQ/WQ IO channels
4623 # Value range is [1,7]. Default value is 4.
4625 LPFC_ATTR_R(fcp_io_channel, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
4626 LPFC_FCP_IO_CHAN_MAX,
4627 "Set the number of FCP I/O channels");
4630 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
4631 # 0 = HBA resets disabled
4632 # 1 = HBA resets enabled (default)
4633 # Value range is [0,1]. Default value is 1.
4635 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
4638 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
4639 # 0 = HBA Heartbeat disabled
4640 # 1 = HBA Heartbeat enabled (default)
4641 # Value range is [0,1]. Default value is 1.
4643 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
4646 # lpfc_EnableXLane: Enable Express Lane Feature
4647 # 0x0 Express Lane Feature disabled
4648 # 0x1 Express Lane Feature enabled
4649 # Value range is [0,1]. Default value is 0.
4651 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
4654 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature
4655 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits)
4656 # Value range is [0x0,0x7f]. Default value is 0
4658 LPFC_ATTR_R(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
4661 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
4662 # 0 = BlockGuard disabled (default)
4663 # 1 = BlockGuard enabled
4664 # Value range is [0,1]. Default value is 0.
4666 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
4669 # lpfc_fcp_look_ahead: Look ahead for completions in FCP start routine
4670 # 0 = disabled (default)
4672 # Value range is [0,1]. Default value is 0.
4674 # This feature in under investigation and may be supported in the future.
4676 unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF;
4680 # - Bit mask of host protection capabilities used to register with the
4682 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
4683 # - Allows you to ultimately specify which profiles to use
4684 # - Default will result in registering capabilities for all profiles.
4685 # - SHOST_DIF_TYPE1_PROTECTION 1
4686 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection
4687 # - SHOST_DIX_TYPE0_PROTECTION 8
4688 # HBA supports DIX Type 0: Host to HBA protection only
4689 # - SHOST_DIX_TYPE1_PROTECTION 16
4690 # HBA supports DIX Type 1: Host to HBA Type 1 protection
4693 unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION |
4694 SHOST_DIX_TYPE0_PROTECTION |
4695 SHOST_DIX_TYPE1_PROTECTION;
4697 module_param(lpfc_prot_mask, uint, S_IRUGO);
4698 MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
4701 # lpfc_prot_guard: i
4702 # - Bit mask of protection guard types to register with the SCSI mid-layer
4703 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum
4704 # - Allows you to ultimately specify which profiles to use
4705 # - Default will result in registering capabilities for all guard types
4708 unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
4709 module_param(lpfc_prot_guard, byte, S_IRUGO);
4710 MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
4713 * Delay initial NPort discovery when Clean Address bit is cleared in
4714 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
4715 * This parameter can have value 0 or 1.
4716 * When this parameter is set to 0, no delay is added to the initial
4718 * When this parameter is set to non-zero value, initial Nport discovery is
4719 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
4720 * accept and FCID/Fabric name/Fabric portname is changed.
4721 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
4722 * when Clean Address bit is cleared in FLOGI/FDISC
4723 * accept and FCID/Fabric name/Fabric portname is changed.
4724 * Default value is 0.
4726 int lpfc_delay_discovery;
4727 module_param(lpfc_delay_discovery, int, S_IRUGO);
4728 MODULE_PARM_DESC(lpfc_delay_discovery,
4729 "Delay NPort discovery when Clean Address bit is cleared. "
4730 "Allowed values: 0,1.");
4733 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
4734 * This value can be set to values between 64 and 4096. The default value is
4735 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
4736 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
4737 * Because of the additional overhead involved in setting up T10-DIF,
4738 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4
4739 * and will be limited to 512 if BlockGuard is enabled under SLI3.
4741 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
4742 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
4745 * This parameter will be depricated, the driver cannot limit the
4746 * protection data s/g list.
4748 LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT,
4749 LPFC_DEFAULT_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT,
4750 "Max Protection Scatter Gather Segment Count");
4752 struct device_attribute *lpfc_hba_attrs[] = {
4754 &dev_attr_bg_guard_err,
4755 &dev_attr_bg_apptag_err,
4756 &dev_attr_bg_reftag_err,
4758 &dev_attr_serialnum,
4759 &dev_attr_modeldesc,
4760 &dev_attr_modelname,
4761 &dev_attr_programtype,
4765 &dev_attr_option_rom_version,
4766 &dev_attr_link_state,
4767 &dev_attr_num_discovered_ports,
4768 &dev_attr_menlo_mgmt_mode,
4769 &dev_attr_lpfc_drvr_version,
4770 &dev_attr_lpfc_enable_fip,
4771 &dev_attr_lpfc_temp_sensor,
4772 &dev_attr_lpfc_log_verbose,
4773 &dev_attr_lpfc_lun_queue_depth,
4774 &dev_attr_lpfc_tgt_queue_depth,
4775 &dev_attr_lpfc_hba_queue_depth,
4776 &dev_attr_lpfc_peer_port_login,
4777 &dev_attr_lpfc_nodev_tmo,
4778 &dev_attr_lpfc_devloss_tmo,
4779 &dev_attr_lpfc_fcp_class,
4780 &dev_attr_lpfc_use_adisc,
4781 &dev_attr_lpfc_first_burst_size,
4782 &dev_attr_lpfc_ack0,
4783 &dev_attr_lpfc_topology,
4784 &dev_attr_lpfc_scan_down,
4785 &dev_attr_lpfc_link_speed,
4786 &dev_attr_lpfc_fcp_io_sched,
4787 &dev_attr_lpfc_fcp2_no_tgt_reset,
4788 &dev_attr_lpfc_cr_delay,
4789 &dev_attr_lpfc_cr_count,
4790 &dev_attr_lpfc_multi_ring_support,
4791 &dev_attr_lpfc_multi_ring_rctl,
4792 &dev_attr_lpfc_multi_ring_type,
4793 &dev_attr_lpfc_fdmi_on,
4794 &dev_attr_lpfc_max_luns,
4795 &dev_attr_lpfc_enable_npiv,
4796 &dev_attr_lpfc_fcf_failover_policy,
4797 &dev_attr_lpfc_enable_rrq,
4798 &dev_attr_nport_evt_cnt,
4799 &dev_attr_board_mode,
4806 &dev_attr_npiv_info,
4807 &dev_attr_issue_reset,
4808 &dev_attr_lpfc_poll,
4809 &dev_attr_lpfc_poll_tmo,
4810 &dev_attr_lpfc_task_mgmt_tmo,
4811 &dev_attr_lpfc_use_msi,
4812 &dev_attr_lpfc_fcp_imax,
4813 &dev_attr_lpfc_fcp_cpu_map,
4814 &dev_attr_lpfc_fcp_io_channel,
4815 &dev_attr_lpfc_enable_bg,
4816 &dev_attr_lpfc_soft_wwnn,
4817 &dev_attr_lpfc_soft_wwpn,
4818 &dev_attr_lpfc_soft_wwn_enable,
4819 &dev_attr_lpfc_enable_hba_reset,
4820 &dev_attr_lpfc_enable_hba_heartbeat,
4821 &dev_attr_lpfc_EnableXLane,
4822 &dev_attr_lpfc_XLanePriority,
4823 &dev_attr_lpfc_xlane_lun,
4824 &dev_attr_lpfc_xlane_tgt,
4825 &dev_attr_lpfc_xlane_vpt,
4826 &dev_attr_lpfc_xlane_lun_state,
4827 &dev_attr_lpfc_xlane_lun_status,
4828 &dev_attr_lpfc_sg_seg_cnt,
4829 &dev_attr_lpfc_max_scsicmpl_time,
4830 &dev_attr_lpfc_stat_data_ctrl,
4831 &dev_attr_lpfc_prot_sg_seg_cnt,
4832 &dev_attr_lpfc_aer_support,
4833 &dev_attr_lpfc_aer_state_cleanup,
4834 &dev_attr_lpfc_sriov_nr_virtfn,
4835 &dev_attr_lpfc_req_fw_upgrade,
4836 &dev_attr_lpfc_suppress_link_up,
4837 &dev_attr_lpfc_iocb_cnt,
4840 &dev_attr_txcmplq_hw,
4841 &dev_attr_lpfc_fips_level,
4842 &dev_attr_lpfc_fips_rev,
4844 &dev_attr_lpfc_sriov_hw_max_virtfn,
4846 &dev_attr_lpfc_xlane_supported,
4850 struct device_attribute *lpfc_vport_attrs[] = {
4852 &dev_attr_link_state,
4853 &dev_attr_num_discovered_ports,
4854 &dev_attr_lpfc_drvr_version,
4855 &dev_attr_lpfc_log_verbose,
4856 &dev_attr_lpfc_lun_queue_depth,
4857 &dev_attr_lpfc_tgt_queue_depth,
4858 &dev_attr_lpfc_nodev_tmo,
4859 &dev_attr_lpfc_devloss_tmo,
4860 &dev_attr_lpfc_hba_queue_depth,
4861 &dev_attr_lpfc_peer_port_login,
4862 &dev_attr_lpfc_restrict_login,
4863 &dev_attr_lpfc_fcp_class,
4864 &dev_attr_lpfc_use_adisc,
4865 &dev_attr_lpfc_first_burst_size,
4866 &dev_attr_lpfc_fdmi_on,
4867 &dev_attr_lpfc_max_luns,
4868 &dev_attr_nport_evt_cnt,
4869 &dev_attr_npiv_info,
4870 &dev_attr_lpfc_enable_da_id,
4871 &dev_attr_lpfc_max_scsicmpl_time,
4872 &dev_attr_lpfc_stat_data_ctrl,
4873 &dev_attr_lpfc_static_vport,
4874 &dev_attr_lpfc_fips_level,
4875 &dev_attr_lpfc_fips_rev,
4880 * sysfs_ctlreg_write - Write method for writing to ctlreg
4881 * @filp: open sysfs file
4882 * @kobj: kernel kobject that contains the kernel class device.
4883 * @bin_attr: kernel attributes passed to us.
4884 * @buf: contains the data to be written to the adapter IOREG space.
4885 * @off: offset into buffer to beginning of data.
4886 * @count: bytes to transfer.
4889 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
4890 * Uses the adapter io control registers to send buf contents to the adapter.
4893 * -ERANGE off and count combo out of range
4894 * -EINVAL off, count or buff address invalid
4895 * -EPERM adapter is offline
4896 * value of count, buf contents written
4899 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
4900 struct bin_attribute *bin_attr,
4901 char *buf, loff_t off, size_t count)
4904 struct device *dev = container_of(kobj, struct device, kobj);
4905 struct Scsi_Host *shost = class_to_shost(dev);
4906 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4907 struct lpfc_hba *phba = vport->phba;
4909 if (phba->sli_rev >= LPFC_SLI_REV4)
4912 if ((off + count) > FF_REG_AREA_SIZE)
4915 if (count <= LPFC_REG_WRITE_KEY_SIZE)
4918 if (off % 4 || count % 4 || (unsigned long)buf % 4)
4921 /* This is to protect HBA registers from accidental writes. */
4922 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE))
4925 if (!(vport->fc_flag & FC_OFFLINE_MODE))
4928 spin_lock_irq(&phba->hbalock);
4929 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE;
4930 buf_off += sizeof(uint32_t))
4931 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)),
4932 phba->ctrl_regs_memmap_p + off + buf_off);
4934 spin_unlock_irq(&phba->hbalock);
4940 * sysfs_ctlreg_read - Read method for reading from ctlreg
4941 * @filp: open sysfs file
4942 * @kobj: kernel kobject that contains the kernel class device.
4943 * @bin_attr: kernel attributes passed to us.
4944 * @buf: if successful contains the data from the adapter IOREG space.
4945 * @off: offset into buffer to beginning of data.
4946 * @count: bytes to transfer.
4949 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
4950 * Uses the adapter io control registers to read data into buf.
4953 * -ERANGE off and count combo out of range
4954 * -EINVAL off, count or buff address invalid
4955 * value of count, buf contents read
4958 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
4959 struct bin_attribute *bin_attr,
4960 char *buf, loff_t off, size_t count)
4964 struct device *dev = container_of(kobj, struct device, kobj);
4965 struct Scsi_Host *shost = class_to_shost(dev);
4966 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4967 struct lpfc_hba *phba = vport->phba;
4969 if (phba->sli_rev >= LPFC_SLI_REV4)
4972 if (off > FF_REG_AREA_SIZE)
4975 if ((off + count) > FF_REG_AREA_SIZE)
4976 count = FF_REG_AREA_SIZE - off;
4978 if (count == 0) return 0;
4980 if (off % 4 || count % 4 || (unsigned long)buf % 4)
4983 spin_lock_irq(&phba->hbalock);
4985 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
4986 tmp_ptr = (uint32_t *)(buf + buf_off);
4987 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
4990 spin_unlock_irq(&phba->hbalock);
4995 static struct bin_attribute sysfs_ctlreg_attr = {
4998 .mode = S_IRUSR | S_IWUSR,
5001 .read = sysfs_ctlreg_read,
5002 .write = sysfs_ctlreg_write,
5006 * sysfs_mbox_write - Write method for writing information via mbox
5007 * @filp: open sysfs file
5008 * @kobj: kernel kobject that contains the kernel class device.
5009 * @bin_attr: kernel attributes passed to us.
5010 * @buf: contains the data to be written to sysfs mbox.
5011 * @off: offset into buffer to beginning of data.
5012 * @count: bytes to transfer.
5015 * Deprecated function. All mailbox access from user space is performed via the
5019 * -EPERM operation not permitted
5022 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
5023 struct bin_attribute *bin_attr,
5024 char *buf, loff_t off, size_t count)
5030 * sysfs_mbox_read - Read method for reading information via mbox
5031 * @filp: open sysfs file
5032 * @kobj: kernel kobject that contains the kernel class device.
5033 * @bin_attr: kernel attributes passed to us.
5034 * @buf: contains the data to be read from sysfs mbox.
5035 * @off: offset into buffer to beginning of data.
5036 * @count: bytes to transfer.
5039 * Deprecated function. All mailbox access from user space is performed via the
5043 * -EPERM operation not permitted
5046 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
5047 struct bin_attribute *bin_attr,
5048 char *buf, loff_t off, size_t count)
5053 static struct bin_attribute sysfs_mbox_attr = {
5056 .mode = S_IRUSR | S_IWUSR,
5058 .size = MAILBOX_SYSFS_MAX,
5059 .read = sysfs_mbox_read,
5060 .write = sysfs_mbox_write,
5064 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
5065 * @vport: address of lpfc vport structure.
5069 * error return code from sysfs_create_bin_file()
5072 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
5074 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5077 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5078 &sysfs_drvr_stat_data_attr);
5080 /* Virtual ports do not need ctrl_reg and mbox */
5081 if (error || vport->port_type == LPFC_NPIV_PORT)
5084 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5085 &sysfs_ctlreg_attr);
5087 goto out_remove_stat_attr;
5089 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5092 goto out_remove_ctlreg_attr;
5095 out_remove_ctlreg_attr:
5096 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
5097 out_remove_stat_attr:
5098 sysfs_remove_bin_file(&shost->shost_dev.kobj,
5099 &sysfs_drvr_stat_data_attr);
5105 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
5106 * @vport: address of lpfc vport structure.
5109 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
5111 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5112 sysfs_remove_bin_file(&shost->shost_dev.kobj,
5113 &sysfs_drvr_stat_data_attr);
5114 /* Virtual ports do not need ctrl_reg and mbox */
5115 if (vport->port_type == LPFC_NPIV_PORT)
5117 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
5118 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
5123 * Dynamic FC Host Attributes Support
5127 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
5128 * @shost: kernel scsi host pointer.
5131 lpfc_get_host_port_id(struct Scsi_Host *shost)
5133 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5135 /* note: fc_myDID already in cpu endianness */
5136 fc_host_port_id(shost) = vport->fc_myDID;
5140 * lpfc_get_host_port_type - Set the value of the scsi host port type
5141 * @shost: kernel scsi host pointer.
5144 lpfc_get_host_port_type(struct Scsi_Host *shost)
5146 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5147 struct lpfc_hba *phba = vport->phba;
5149 spin_lock_irq(shost->host_lock);
5151 if (vport->port_type == LPFC_NPIV_PORT) {
5152 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
5153 } else if (lpfc_is_link_up(phba)) {
5154 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5155 if (vport->fc_flag & FC_PUBLIC_LOOP)
5156 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
5158 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
5160 if (vport->fc_flag & FC_FABRIC)
5161 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
5163 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
5166 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
5168 spin_unlock_irq(shost->host_lock);
5172 * lpfc_get_host_port_state - Set the value of the scsi host port state
5173 * @shost: kernel scsi host pointer.
5176 lpfc_get_host_port_state(struct Scsi_Host *shost)
5178 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5179 struct lpfc_hba *phba = vport->phba;
5181 spin_lock_irq(shost->host_lock);
5183 if (vport->fc_flag & FC_OFFLINE_MODE)
5184 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
5186 switch (phba->link_state) {
5187 case LPFC_LINK_UNKNOWN:
5188 case LPFC_LINK_DOWN:
5189 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
5193 case LPFC_HBA_READY:
5194 /* Links up, reports port state accordingly */
5195 if (vport->port_state < LPFC_VPORT_READY)
5196 fc_host_port_state(shost) =
5197 FC_PORTSTATE_BYPASSED;
5199 fc_host_port_state(shost) =
5200 FC_PORTSTATE_ONLINE;
5202 case LPFC_HBA_ERROR:
5203 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
5206 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
5211 spin_unlock_irq(shost->host_lock);
5215 * lpfc_get_host_speed - Set the value of the scsi host speed
5216 * @shost: kernel scsi host pointer.
5219 lpfc_get_host_speed(struct Scsi_Host *shost)
5221 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5222 struct lpfc_hba *phba = vport->phba;
5224 spin_lock_irq(shost->host_lock);
5226 if (lpfc_is_link_up(phba)) {
5227 switch(phba->fc_linkspeed) {
5228 case LPFC_LINK_SPEED_1GHZ:
5229 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
5231 case LPFC_LINK_SPEED_2GHZ:
5232 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
5234 case LPFC_LINK_SPEED_4GHZ:
5235 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
5237 case LPFC_LINK_SPEED_8GHZ:
5238 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
5240 case LPFC_LINK_SPEED_10GHZ:
5241 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
5243 case LPFC_LINK_SPEED_16GHZ:
5244 fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
5247 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
5251 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
5253 spin_unlock_irq(shost->host_lock);
5257 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
5258 * @shost: kernel scsi host pointer.
5261 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
5263 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5264 struct lpfc_hba *phba = vport->phba;
5267 spin_lock_irq(shost->host_lock);
5269 if ((vport->port_state > LPFC_FLOGI) &&
5270 ((vport->fc_flag & FC_FABRIC) ||
5271 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
5272 (vport->fc_flag & FC_PUBLIC_LOOP))))
5273 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
5275 /* fabric is local port if there is no F/FL_Port */
5278 spin_unlock_irq(shost->host_lock);
5280 fc_host_fabric_name(shost) = node_name;
5284 * lpfc_get_stats - Return statistical information about the adapter
5285 * @shost: kernel scsi host pointer.
5288 * NULL on error for link down, no mbox pool, sli2 active,
5289 * management not allowed, memory allocation error, or mbox error.
5293 * address of the adapter host statistics
5295 static struct fc_host_statistics *
5296 lpfc_get_stats(struct Scsi_Host *shost)
5298 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5299 struct lpfc_hba *phba = vport->phba;
5300 struct lpfc_sli *psli = &phba->sli;
5301 struct fc_host_statistics *hs = &phba->link_stats;
5302 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
5303 LPFC_MBOXQ_t *pmboxq;
5305 unsigned long seconds;
5309 * prevent udev from issuing mailbox commands until the port is
5312 if (phba->link_state < LPFC_LINK_DOWN ||
5313 !phba->mbox_mem_pool ||
5314 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
5317 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
5320 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5323 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
5325 pmb = &pmboxq->u.mb;
5326 pmb->mbxCommand = MBX_READ_STATUS;
5327 pmb->mbxOwner = OWN_HOST;
5328 pmboxq->context1 = NULL;
5329 pmboxq->vport = vport;
5331 if (vport->fc_flag & FC_OFFLINE_MODE)
5332 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5334 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5336 if (rc != MBX_SUCCESS) {
5337 if (rc != MBX_TIMEOUT)
5338 mempool_free(pmboxq, phba->mbox_mem_pool);
5342 memset(hs, 0, sizeof (struct fc_host_statistics));
5344 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
5346 * The MBX_READ_STATUS returns tx_k_bytes which has to
5347 * converted to words
5349 hs->tx_words = (uint64_t)
5350 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt
5352 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
5353 hs->rx_words = (uint64_t)
5354 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt
5357 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
5358 pmb->mbxCommand = MBX_READ_LNK_STAT;
5359 pmb->mbxOwner = OWN_HOST;
5360 pmboxq->context1 = NULL;
5361 pmboxq->vport = vport;
5363 if (vport->fc_flag & FC_OFFLINE_MODE)
5364 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5366 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5368 if (rc != MBX_SUCCESS) {
5369 if (rc != MBX_TIMEOUT)
5370 mempool_free(pmboxq, phba->mbox_mem_pool);
5374 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
5375 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
5376 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
5377 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
5378 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
5379 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
5380 hs->error_frames = pmb->un.varRdLnk.crcCnt;
5382 hs->link_failure_count -= lso->link_failure_count;
5383 hs->loss_of_sync_count -= lso->loss_of_sync_count;
5384 hs->loss_of_signal_count -= lso->loss_of_signal_count;
5385 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
5386 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
5387 hs->invalid_crc_count -= lso->invalid_crc_count;
5388 hs->error_frames -= lso->error_frames;
5390 if (phba->hba_flag & HBA_FCOE_MODE) {
5392 hs->nos_count = (phba->link_events >> 1);
5393 hs->nos_count -= lso->link_events;
5394 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5395 hs->lip_count = (phba->fc_eventTag >> 1);
5396 hs->lip_count -= lso->link_events;
5400 hs->nos_count = (phba->fc_eventTag >> 1);
5401 hs->nos_count -= lso->link_events;
5404 hs->dumped_frames = -1;
5406 seconds = get_seconds();
5407 if (seconds < psli->stats_start)
5408 hs->seconds_since_last_reset = seconds +
5409 ((unsigned long)-1 - psli->stats_start);
5411 hs->seconds_since_last_reset = seconds - psli->stats_start;
5413 mempool_free(pmboxq, phba->mbox_mem_pool);
5419 * lpfc_reset_stats - Copy the adapter link stats information
5420 * @shost: kernel scsi host pointer.
5423 lpfc_reset_stats(struct Scsi_Host *shost)
5425 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5426 struct lpfc_hba *phba = vport->phba;
5427 struct lpfc_sli *psli = &phba->sli;
5428 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
5429 LPFC_MBOXQ_t *pmboxq;
5433 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
5436 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5439 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
5441 pmb = &pmboxq->u.mb;
5442 pmb->mbxCommand = MBX_READ_STATUS;
5443 pmb->mbxOwner = OWN_HOST;
5444 pmb->un.varWords[0] = 0x1; /* reset request */
5445 pmboxq->context1 = NULL;
5446 pmboxq->vport = vport;
5448 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
5449 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
5450 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5452 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5454 if (rc != MBX_SUCCESS) {
5455 if (rc != MBX_TIMEOUT)
5456 mempool_free(pmboxq, phba->mbox_mem_pool);
5460 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
5461 pmb->mbxCommand = MBX_READ_LNK_STAT;
5462 pmb->mbxOwner = OWN_HOST;
5463 pmboxq->context1 = NULL;
5464 pmboxq->vport = vport;
5466 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
5467 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
5468 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5470 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5472 if (rc != MBX_SUCCESS) {
5473 if (rc != MBX_TIMEOUT)
5474 mempool_free( pmboxq, phba->mbox_mem_pool);
5478 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
5479 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
5480 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
5481 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
5482 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
5483 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
5484 lso->error_frames = pmb->un.varRdLnk.crcCnt;
5485 if (phba->hba_flag & HBA_FCOE_MODE)
5486 lso->link_events = (phba->link_events >> 1);
5488 lso->link_events = (phba->fc_eventTag >> 1);
5490 psli->stats_start = get_seconds();
5492 mempool_free(pmboxq, phba->mbox_mem_pool);
5498 * The LPFC driver treats linkdown handling as target loss events so there
5499 * are no sysfs handlers for link_down_tmo.
5503 * lpfc_get_node_by_target - Return the nodelist for a target
5504 * @starget: kernel scsi target pointer.
5507 * address of the node list if found
5508 * NULL target not found
5510 static struct lpfc_nodelist *
5511 lpfc_get_node_by_target(struct scsi_target *starget)
5513 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
5514 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5515 struct lpfc_nodelist *ndlp;
5517 spin_lock_irq(shost->host_lock);
5518 /* Search for this, mapped, target ID */
5519 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5520 if (NLP_CHK_NODE_ACT(ndlp) &&
5521 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
5522 starget->id == ndlp->nlp_sid) {
5523 spin_unlock_irq(shost->host_lock);
5527 spin_unlock_irq(shost->host_lock);
5532 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
5533 * @starget: kernel scsi target pointer.
5536 lpfc_get_starget_port_id(struct scsi_target *starget)
5538 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5540 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
5544 * lpfc_get_starget_node_name - Set the target node name
5545 * @starget: kernel scsi target pointer.
5547 * Description: Set the target node name to the ndlp node name wwn or zero.
5550 lpfc_get_starget_node_name(struct scsi_target *starget)
5552 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5554 fc_starget_node_name(starget) =
5555 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
5559 * lpfc_get_starget_port_name - Set the target port name
5560 * @starget: kernel scsi target pointer.
5562 * Description: set the target port name to the ndlp port name wwn or zero.
5565 lpfc_get_starget_port_name(struct scsi_target *starget)
5567 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5569 fc_starget_port_name(starget) =
5570 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
5574 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
5575 * @rport: fc rport address.
5576 * @timeout: new value for dev loss tmo.
5579 * If timeout is non zero set the dev_loss_tmo to timeout, else set
5580 * dev_loss_tmo to one.
5583 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
5586 rport->dev_loss_tmo = timeout;
5588 rport->dev_loss_tmo = 1;
5592 * lpfc_rport_show_function - Return rport target information
5595 * Macro that uses field to generate a function with the name lpfc_show_rport_
5597 * lpfc_show_rport_##field: returns the bytes formatted in buf
5598 * @cdev: class converted to an fc_rport.
5599 * @buf: on return contains the target_field or zero.
5601 * Returns: size of formatted string.
5603 #define lpfc_rport_show_function(field, format_string, sz, cast) \
5605 lpfc_show_rport_##field (struct device *dev, \
5606 struct device_attribute *attr, \
5609 struct fc_rport *rport = transport_class_to_rport(dev); \
5610 struct lpfc_rport_data *rdata = rport->hostdata; \
5611 return snprintf(buf, sz, format_string, \
5612 (rdata->target) ? cast rdata->target->field : 0); \
5615 #define lpfc_rport_rd_attr(field, format_string, sz) \
5616 lpfc_rport_show_function(field, format_string, sz, ) \
5617 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
5620 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
5621 * @fc_vport: The fc_vport who's symbolic name has been changed.
5624 * This function is called by the transport after the @fc_vport's symbolic name
5625 * has been changed. This function re-registers the symbolic name with the
5626 * switch to propagate the change into the fabric if the vport is active.
5629 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
5631 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
5633 if (vport->port_state == LPFC_VPORT_READY)
5634 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
5638 * lpfc_hba_log_verbose_init - Set hba's log verbose level
5639 * @phba: Pointer to lpfc_hba struct.
5641 * This function is called by the lpfc_get_cfgparam() routine to set the
5642 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
5643 * log message according to the module's lpfc_log_verbose parameter setting
5644 * before hba port or vport created.
5647 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
5649 phba->cfg_log_verbose = verbose;
5652 struct fc_function_template lpfc_transport_functions = {
5653 /* fixed attributes the driver supports */
5654 .show_host_node_name = 1,
5655 .show_host_port_name = 1,
5656 .show_host_supported_classes = 1,
5657 .show_host_supported_fc4s = 1,
5658 .show_host_supported_speeds = 1,
5659 .show_host_maxframe_size = 1,
5660 .show_host_symbolic_name = 1,
5662 /* dynamic attributes the driver supports */
5663 .get_host_port_id = lpfc_get_host_port_id,
5664 .show_host_port_id = 1,
5666 .get_host_port_type = lpfc_get_host_port_type,
5667 .show_host_port_type = 1,
5669 .get_host_port_state = lpfc_get_host_port_state,
5670 .show_host_port_state = 1,
5672 /* active_fc4s is shown but doesn't change (thus no get function) */
5673 .show_host_active_fc4s = 1,
5675 .get_host_speed = lpfc_get_host_speed,
5676 .show_host_speed = 1,
5678 .get_host_fabric_name = lpfc_get_host_fabric_name,
5679 .show_host_fabric_name = 1,
5682 * The LPFC driver treats linkdown handling as target loss events
5683 * so there are no sysfs handlers for link_down_tmo.
5686 .get_fc_host_stats = lpfc_get_stats,
5687 .reset_fc_host_stats = lpfc_reset_stats,
5689 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
5690 .show_rport_maxframe_size = 1,
5691 .show_rport_supported_classes = 1,
5693 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
5694 .show_rport_dev_loss_tmo = 1,
5696 .get_starget_port_id = lpfc_get_starget_port_id,
5697 .show_starget_port_id = 1,
5699 .get_starget_node_name = lpfc_get_starget_node_name,
5700 .show_starget_node_name = 1,
5702 .get_starget_port_name = lpfc_get_starget_port_name,
5703 .show_starget_port_name = 1,
5705 .issue_fc_host_lip = lpfc_issue_lip,
5706 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
5707 .terminate_rport_io = lpfc_terminate_rport_io,
5709 .dd_fcvport_size = sizeof(struct lpfc_vport *),
5711 .vport_disable = lpfc_vport_disable,
5713 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
5715 .bsg_request = lpfc_bsg_request,
5716 .bsg_timeout = lpfc_bsg_timeout,
5719 struct fc_function_template lpfc_vport_transport_functions = {
5720 /* fixed attributes the driver supports */
5721 .show_host_node_name = 1,
5722 .show_host_port_name = 1,
5723 .show_host_supported_classes = 1,
5724 .show_host_supported_fc4s = 1,
5725 .show_host_supported_speeds = 1,
5726 .show_host_maxframe_size = 1,
5727 .show_host_symbolic_name = 1,
5729 /* dynamic attributes the driver supports */
5730 .get_host_port_id = lpfc_get_host_port_id,
5731 .show_host_port_id = 1,
5733 .get_host_port_type = lpfc_get_host_port_type,
5734 .show_host_port_type = 1,
5736 .get_host_port_state = lpfc_get_host_port_state,
5737 .show_host_port_state = 1,
5739 /* active_fc4s is shown but doesn't change (thus no get function) */
5740 .show_host_active_fc4s = 1,
5742 .get_host_speed = lpfc_get_host_speed,
5743 .show_host_speed = 1,
5745 .get_host_fabric_name = lpfc_get_host_fabric_name,
5746 .show_host_fabric_name = 1,
5749 * The LPFC driver treats linkdown handling as target loss events
5750 * so there are no sysfs handlers for link_down_tmo.
5753 .get_fc_host_stats = lpfc_get_stats,
5754 .reset_fc_host_stats = lpfc_reset_stats,
5756 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
5757 .show_rport_maxframe_size = 1,
5758 .show_rport_supported_classes = 1,
5760 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
5761 .show_rport_dev_loss_tmo = 1,
5763 .get_starget_port_id = lpfc_get_starget_port_id,
5764 .show_starget_port_id = 1,
5766 .get_starget_node_name = lpfc_get_starget_node_name,
5767 .show_starget_node_name = 1,
5769 .get_starget_port_name = lpfc_get_starget_port_name,
5770 .show_starget_port_name = 1,
5772 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
5773 .terminate_rport_io = lpfc_terminate_rport_io,
5775 .vport_disable = lpfc_vport_disable,
5777 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
5781 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
5782 * @phba: lpfc_hba pointer.
5785 lpfc_get_cfgparam(struct lpfc_hba *phba)
5787 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched);
5788 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset);
5789 lpfc_cr_delay_init(phba, lpfc_cr_delay);
5790 lpfc_cr_count_init(phba, lpfc_cr_count);
5791 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
5792 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
5793 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
5794 lpfc_ack0_init(phba, lpfc_ack0);
5795 lpfc_topology_init(phba, lpfc_topology);
5796 lpfc_link_speed_init(phba, lpfc_link_speed);
5797 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
5798 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo);
5799 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
5800 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
5801 lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
5802 lpfc_use_msi_init(phba, lpfc_use_msi);
5803 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
5804 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map);
5805 lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel);
5806 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
5807 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
5808 lpfc_EnableXLane_init(phba, lpfc_EnableXLane);
5809 if (phba->sli_rev != LPFC_SLI_REV4)
5810 phba->cfg_EnableXLane = 0;
5811 lpfc_XLanePriority_init(phba, lpfc_XLanePriority);
5812 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t)));
5813 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t)));
5814 phba->cfg_oas_lun_state = 0;
5815 phba->cfg_oas_lun_status = 0;
5816 phba->cfg_oas_flags = 0;
5817 lpfc_enable_bg_init(phba, lpfc_enable_bg);
5818 if (phba->sli_rev == LPFC_SLI_REV4)
5821 phba->cfg_poll = lpfc_poll;
5822 phba->cfg_soft_wwnn = 0L;
5823 phba->cfg_soft_wwpn = 0L;
5824 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
5825 lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
5826 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
5827 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
5828 lpfc_aer_support_init(phba, lpfc_aer_support);
5829 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
5830 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade);
5831 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
5832 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
5833 phba->cfg_enable_dss = 1;
5838 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
5839 * @vport: lpfc_vport pointer.
5842 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
5844 lpfc_log_verbose_init(vport, lpfc_log_verbose);
5845 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
5846 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
5847 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
5848 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
5849 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
5850 lpfc_restrict_login_init(vport, lpfc_restrict_login);
5851 lpfc_fcp_class_init(vport, lpfc_fcp_class);
5852 lpfc_use_adisc_init(vport, lpfc_use_adisc);
5853 lpfc_first_burst_size_init(vport, lpfc_first_burst_size);
5854 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
5855 lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
5856 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
5857 lpfc_max_luns_init(vport, lpfc_max_luns);
5858 lpfc_scan_down_init(vport, lpfc_scan_down);
5859 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);