1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2016 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"
51 #include "lpfc_attr.h"
53 #define LPFC_DEF_DEVLOSS_TMO 30
54 #define LPFC_MIN_DEVLOSS_TMO 1
55 #define LPFC_MAX_DEVLOSS_TMO 255
58 * Write key size should be multiple of 4. If write key is changed
59 * make sure that library write key is also changed.
61 #define LPFC_REG_WRITE_KEY_SIZE 4
62 #define LPFC_REG_WRITE_KEY "EMLX"
65 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
66 * @incr: integer to convert.
67 * @hdw: ascii string holding converted integer plus a string terminator.
70 * JEDEC Joint Electron Device Engineering Council.
71 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
72 * character string. The string is then terminated with a NULL in byte 9.
73 * Hex 0-9 becomes ascii '0' to '9'.
74 * Hex a-f becomes ascii '=' to 'B' capital B.
77 * Coded for 32 bit integers only.
80 lpfc_jedec_to_ascii(int incr, char hdw[])
83 for (i = 0; i < 8; i++) {
86 hdw[7 - i] = 0x30 + j;
88 hdw[7 - i] = 0x61 + j - 10;
96 * lpfc_drvr_version_show - Return the Emulex driver string with version number
97 * @dev: class unused variable.
98 * @attr: device attribute, not used.
99 * @buf: on return contains the module description text.
101 * Returns: size of formatted string.
104 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
107 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
111 * lpfc_enable_fip_show - Return the fip mode of the HBA
112 * @dev: class unused variable.
113 * @attr: device attribute, not used.
114 * @buf: on return contains the module description text.
116 * Returns: size of formatted string.
119 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
122 struct Scsi_Host *shost = class_to_shost(dev);
123 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
124 struct lpfc_hba *phba = vport->phba;
126 if (phba->hba_flag & HBA_FIP_SUPPORT)
127 return snprintf(buf, PAGE_SIZE, "1\n");
129 return snprintf(buf, PAGE_SIZE, "0\n");
133 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
136 struct Scsi_Host *shost = class_to_shost(dev);
137 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
138 struct lpfc_hba *phba = vport->phba;
140 if (phba->cfg_enable_bg)
141 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
142 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
144 return snprintf(buf, PAGE_SIZE,
145 "BlockGuard Not Supported\n");
147 return snprintf(buf, PAGE_SIZE,
148 "BlockGuard Disabled\n");
152 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
155 struct Scsi_Host *shost = class_to_shost(dev);
156 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
157 struct lpfc_hba *phba = vport->phba;
159 return snprintf(buf, PAGE_SIZE, "%llu\n",
160 (unsigned long long)phba->bg_guard_err_cnt);
164 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
167 struct Scsi_Host *shost = class_to_shost(dev);
168 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
169 struct lpfc_hba *phba = vport->phba;
171 return snprintf(buf, PAGE_SIZE, "%llu\n",
172 (unsigned long long)phba->bg_apptag_err_cnt);
176 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
179 struct Scsi_Host *shost = class_to_shost(dev);
180 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
181 struct lpfc_hba *phba = vport->phba;
183 return snprintf(buf, PAGE_SIZE, "%llu\n",
184 (unsigned long long)phba->bg_reftag_err_cnt);
188 * lpfc_info_show - Return some pci info about the host in ascii
189 * @dev: class converted to a Scsi_host structure.
190 * @attr: device attribute, not used.
191 * @buf: on return contains the formatted text from lpfc_info().
193 * Returns: size of formatted string.
196 lpfc_info_show(struct device *dev, struct device_attribute *attr,
199 struct Scsi_Host *host = class_to_shost(dev);
201 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
205 * lpfc_serialnum_show - Return the hba serial number in ascii
206 * @dev: class converted to a Scsi_host structure.
207 * @attr: device attribute, not used.
208 * @buf: on return contains the formatted text serial number.
210 * Returns: size of formatted string.
213 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
216 struct Scsi_Host *shost = class_to_shost(dev);
217 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
218 struct lpfc_hba *phba = vport->phba;
220 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
224 * lpfc_temp_sensor_show - Return the temperature sensor level
225 * @dev: class converted to a Scsi_host structure.
226 * @attr: device attribute, not used.
227 * @buf: on return contains the formatted support level.
230 * Returns a number indicating the temperature sensor level currently
231 * supported, zero or one in ascii.
233 * Returns: size of formatted string.
236 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
239 struct Scsi_Host *shost = class_to_shost(dev);
240 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
241 struct lpfc_hba *phba = vport->phba;
242 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
246 * lpfc_modeldesc_show - Return the model description of the hba
247 * @dev: class converted to a Scsi_host structure.
248 * @attr: device attribute, not used.
249 * @buf: on return contains the scsi vpd model description.
251 * Returns: size of formatted string.
254 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
257 struct Scsi_Host *shost = class_to_shost(dev);
258 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
259 struct lpfc_hba *phba = vport->phba;
261 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
265 * lpfc_modelname_show - Return the model name of the hba
266 * @dev: class converted to a Scsi_host structure.
267 * @attr: device attribute, not used.
268 * @buf: on return contains the scsi vpd model name.
270 * Returns: size of formatted string.
273 lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
276 struct Scsi_Host *shost = class_to_shost(dev);
277 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
278 struct lpfc_hba *phba = vport->phba;
280 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
284 * lpfc_programtype_show - Return the program type of the hba
285 * @dev: class converted to a Scsi_host structure.
286 * @attr: device attribute, not used.
287 * @buf: on return contains the scsi vpd program type.
289 * Returns: size of formatted string.
292 lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
295 struct Scsi_Host *shost = class_to_shost(dev);
296 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
297 struct lpfc_hba *phba = vport->phba;
299 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
303 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
304 * @dev: class converted to a Scsi_host structure.
305 * @attr: device attribute, not used.
306 * @buf: on return contains the Menlo Maintenance sli flag.
308 * Returns: size of formatted string.
311 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
313 struct Scsi_Host *shost = class_to_shost(dev);
314 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
315 struct lpfc_hba *phba = vport->phba;
317 return snprintf(buf, PAGE_SIZE, "%d\n",
318 (phba->sli.sli_flag & LPFC_MENLO_MAINT));
322 * lpfc_vportnum_show - Return the port number in ascii of the hba
323 * @dev: class converted to a Scsi_host structure.
324 * @attr: device attribute, not used.
325 * @buf: on return contains scsi vpd program type.
327 * Returns: size of formatted string.
330 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
333 struct Scsi_Host *shost = class_to_shost(dev);
334 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
335 struct lpfc_hba *phba = vport->phba;
337 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
341 * lpfc_fwrev_show - Return the firmware rev running in the hba
342 * @dev: class converted to a Scsi_host structure.
343 * @attr: device attribute, not used.
344 * @buf: on return contains the scsi vpd program type.
346 * Returns: size of formatted string.
349 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
352 struct Scsi_Host *shost = class_to_shost(dev);
353 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
354 struct lpfc_hba *phba = vport->phba;
357 char fwrev[FW_REV_STR_SIZE];
360 lpfc_decode_firmware_rev(phba, fwrev, 1);
361 if_type = phba->sli4_hba.pc_sli4_params.if_type;
362 sli_family = phba->sli4_hba.pc_sli4_params.sli_family;
364 if (phba->sli_rev < LPFC_SLI_REV4)
365 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d\n",
366 fwrev, phba->sli_rev);
368 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n",
369 fwrev, phba->sli_rev, if_type, sli_family);
375 * lpfc_hdw_show - Return the jedec information about the hba
376 * @dev: class converted to a Scsi_host structure.
377 * @attr: device attribute, not used.
378 * @buf: on return contains the scsi vpd program type.
380 * Returns: size of formatted string.
383 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
386 struct Scsi_Host *shost = class_to_shost(dev);
387 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
388 struct lpfc_hba *phba = vport->phba;
389 lpfc_vpd_t *vp = &phba->vpd;
391 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
392 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
396 * lpfc_option_rom_version_show - Return the adapter ROM FCode version
397 * @dev: class converted to a Scsi_host structure.
398 * @attr: device attribute, not used.
399 * @buf: on return contains the ROM and FCode ascii strings.
401 * Returns: size of formatted string.
404 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
407 struct Scsi_Host *shost = class_to_shost(dev);
408 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
409 struct lpfc_hba *phba = vport->phba;
410 char fwrev[FW_REV_STR_SIZE];
412 if (phba->sli_rev < LPFC_SLI_REV4)
413 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
415 lpfc_decode_firmware_rev(phba, fwrev, 1);
416 return snprintf(buf, PAGE_SIZE, "%s\n", fwrev);
420 * lpfc_state_show - Return the link state of the port
421 * @dev: class converted to a Scsi_host structure.
422 * @attr: device attribute, not used.
423 * @buf: on return contains text describing the state of the link.
426 * The switch statement has no default so zero will be returned.
428 * Returns: size of formatted string.
431 lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
434 struct Scsi_Host *shost = class_to_shost(dev);
435 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
436 struct lpfc_hba *phba = vport->phba;
439 switch (phba->link_state) {
440 case LPFC_LINK_UNKNOWN:
441 case LPFC_WARM_START:
442 case LPFC_INIT_START:
443 case LPFC_INIT_MBX_CMDS:
446 if (phba->hba_flag & LINK_DISABLED)
447 len += snprintf(buf + len, PAGE_SIZE-len,
448 "Link Down - User disabled\n");
450 len += snprintf(buf + len, PAGE_SIZE-len,
456 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
458 switch (vport->port_state) {
459 case LPFC_LOCAL_CFG_LINK:
460 len += snprintf(buf + len, PAGE_SIZE-len,
461 "Configuring Link\n");
465 case LPFC_FABRIC_CFG_LINK:
468 case LPFC_BUILD_DISC_LIST:
470 len += snprintf(buf + len, PAGE_SIZE - len,
473 case LPFC_VPORT_READY:
474 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
477 case LPFC_VPORT_FAILED:
478 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
481 case LPFC_VPORT_UNKNOWN:
482 len += snprintf(buf + len, PAGE_SIZE - len,
486 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
487 len += snprintf(buf + len, PAGE_SIZE-len,
488 " Menlo Maint Mode\n");
489 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
490 if (vport->fc_flag & FC_PUBLIC_LOOP)
491 len += snprintf(buf + len, PAGE_SIZE-len,
494 len += snprintf(buf + len, PAGE_SIZE-len,
497 if (vport->fc_flag & FC_FABRIC)
498 len += snprintf(buf + len, PAGE_SIZE-len,
501 len += snprintf(buf + len, PAGE_SIZE-len,
510 * lpfc_sli4_protocol_show - Return the fip mode of the HBA
511 * @dev: class unused variable.
512 * @attr: device attribute, not used.
513 * @buf: on return contains the module description text.
515 * Returns: size of formatted string.
518 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr,
521 struct Scsi_Host *shost = class_to_shost(dev);
522 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
523 struct lpfc_hba *phba = vport->phba;
525 if (phba->sli_rev < LPFC_SLI_REV4)
526 return snprintf(buf, PAGE_SIZE, "fc\n");
528 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) {
529 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE)
530 return snprintf(buf, PAGE_SIZE, "fcoe\n");
531 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)
532 return snprintf(buf, PAGE_SIZE, "fc\n");
534 return snprintf(buf, PAGE_SIZE, "unknown\n");
538 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage
539 * (OAS) is supported.
540 * @dev: class unused variable.
541 * @attr: device attribute, not used.
542 * @buf: on return contains the module description text.
544 * Returns: size of formatted string.
547 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr,
550 struct Scsi_Host *shost = class_to_shost(dev);
551 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
552 struct lpfc_hba *phba = vport->phba;
554 return snprintf(buf, PAGE_SIZE, "%d\n",
555 phba->sli4_hba.pc_sli4_params.oas_supported);
559 * lpfc_link_state_store - Transition the link_state on an HBA port
560 * @dev: class device that is converted into a Scsi_host.
561 * @attr: device attribute, not used.
562 * @buf: one or more lpfc_polling_flags values.
566 * -EINVAL if the buffer is not "up" or "down"
567 * return from link state change function if non-zero
568 * length of the buf on success
571 lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
572 const char *buf, size_t count)
574 struct Scsi_Host *shost = class_to_shost(dev);
575 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
576 struct lpfc_hba *phba = vport->phba;
578 int status = -EINVAL;
580 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
581 (phba->link_state == LPFC_LINK_DOWN))
582 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
583 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
584 (phba->link_state >= LPFC_LINK_UP))
585 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
594 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
595 * @dev: class device that is converted into a Scsi_host.
596 * @attr: device attribute, not used.
597 * @buf: on return contains the sum of fc mapped and unmapped.
600 * Returns the ascii text number of the sum of the fc mapped and unmapped
603 * Returns: size of formatted string.
606 lpfc_num_discovered_ports_show(struct device *dev,
607 struct device_attribute *attr, char *buf)
609 struct Scsi_Host *shost = class_to_shost(dev);
610 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
612 return snprintf(buf, PAGE_SIZE, "%d\n",
613 vport->fc_map_cnt + vport->fc_unmap_cnt);
617 * lpfc_issue_lip - Misnomer, name carried over from long ago
618 * @shost: Scsi_Host pointer.
621 * Bring the link down gracefully then re-init the link. The firmware will
622 * re-init the fiber channel interface as required. Does not issue a LIP.
625 * -EPERM port offline or management commands are being blocked
626 * -ENOMEM cannot allocate memory for the mailbox command
627 * -EIO error sending the mailbox command
631 lpfc_issue_lip(struct Scsi_Host *shost)
633 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
634 struct lpfc_hba *phba = vport->phba;
635 LPFC_MBOXQ_t *pmboxq;
636 int mbxstatus = MBXERR_ERROR;
639 * If the link is offline, disabled or BLOCK_MGMT_IO
640 * it doesn't make any sense to allow issue_lip
642 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
643 (phba->hba_flag & LINK_DISABLED) ||
644 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
647 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
652 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
653 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
654 pmboxq->u.mb.mbxOwner = OWN_HOST;
656 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
658 if ((mbxstatus == MBX_SUCCESS) &&
659 (pmboxq->u.mb.mbxStatus == 0 ||
660 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
661 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
662 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
663 phba->cfg_link_speed);
664 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
666 if ((mbxstatus == MBX_SUCCESS) &&
667 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
668 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
669 "2859 SLI authentication is required "
670 "for INIT_LINK but has not done yet\n");
673 lpfc_set_loopback_flag(phba);
674 if (mbxstatus != MBX_TIMEOUT)
675 mempool_free(pmboxq, phba->mbox_mem_pool);
677 if (mbxstatus == MBXERR_ERROR)
684 * lpfc_do_offline - Issues a mailbox command to bring the link down
685 * @phba: lpfc_hba pointer.
686 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
689 * Assumes any error from lpfc_do_offline() will be negative.
690 * Can wait up to 5 seconds for the port ring buffers count
691 * to reach zero, prints a warning if it is not zero and continues.
692 * lpfc_workq_post_event() returns a non-zero return code if call fails.
695 * -EIO error posting the event
699 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
701 struct completion online_compl;
702 struct lpfc_sli_ring *pring;
703 struct lpfc_sli *psli;
709 init_completion(&online_compl);
710 rc = lpfc_workq_post_event(phba, &status, &online_compl,
711 LPFC_EVT_OFFLINE_PREP);
715 wait_for_completion(&online_compl);
722 /* Wait a little for things to settle down, but not
723 * long enough for dev loss timeout to expire.
725 for (i = 0; i < psli->num_rings; i++) {
726 pring = &psli->ring[i];
727 while (!list_empty(&pring->txcmplq)) {
729 if (cnt++ > 500) { /* 5 secs */
730 lpfc_printf_log(phba,
731 KERN_WARNING, LOG_INIT,
732 "0466 Outstanding IO when "
733 "bringing Adapter offline\n");
739 init_completion(&online_compl);
740 rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
744 wait_for_completion(&online_compl);
753 * lpfc_selective_reset - Offline then onlines the port
754 * @phba: lpfc_hba pointer.
757 * If the port is configured to allow a reset then the hba is brought
758 * offline then online.
761 * Assumes any error from lpfc_do_offline() will be negative.
762 * Do not make this function static.
765 * lpfc_do_offline() return code if not zero
766 * -EIO reset not configured or error posting the event
770 lpfc_selective_reset(struct lpfc_hba *phba)
772 struct completion online_compl;
776 if (!phba->cfg_enable_hba_reset)
779 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) {
780 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
786 init_completion(&online_compl);
787 rc = lpfc_workq_post_event(phba, &status, &online_compl,
792 wait_for_completion(&online_compl);
801 * lpfc_issue_reset - Selectively resets an adapter
802 * @dev: class device that is converted into a Scsi_host.
803 * @attr: device attribute, not used.
804 * @buf: containing the string "selective".
805 * @count: unused variable.
808 * If the buf contains the string "selective" then lpfc_selective_reset()
809 * is called to perform the reset.
812 * Assumes any error from lpfc_selective_reset() will be negative.
813 * If lpfc_selective_reset() returns zero then the length of the buffer
814 * is returned which indicates success
817 * -EINVAL if the buffer does not contain the string "selective"
818 * length of buf if lpfc-selective_reset() if the call succeeds
819 * return value of lpfc_selective_reset() if the call fails
822 lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
823 const char *buf, size_t count)
825 struct Scsi_Host *shost = class_to_shost(dev);
826 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
827 struct lpfc_hba *phba = vport->phba;
828 int status = -EINVAL;
830 if (!phba->cfg_enable_hba_reset)
833 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
834 status = phba->lpfc_selective_reset(phba);
843 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
844 * @phba: lpfc_hba pointer.
847 * SLI4 interface type-2 device to wait on the sliport status register for
848 * the readyness after performing a firmware reset.
851 * zero for success, -EPERM when port does not have privilege to perform the
852 * reset, -EIO when port timeout from recovering from the reset.
855 * As the caller will interpret the return code by value, be careful in making
856 * change or addition to return codes.
859 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
861 struct lpfc_register portstat_reg = {0};
865 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
866 &portstat_reg.word0);
868 /* verify if privileged for the request operation */
869 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) &&
870 !bf_get(lpfc_sliport_status_err, &portstat_reg))
873 /* wait for the SLI port firmware ready after firmware reset */
874 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
876 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
877 &portstat_reg.word0);
878 if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
880 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
882 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
887 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
894 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
895 * @phba: lpfc_hba pointer.
898 * Request SLI4 interface type-2 device to perform a physical register set
905 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
907 struct completion online_compl;
908 struct pci_dev *pdev = phba->pcidev;
909 uint32_t before_fc_flag;
910 uint32_t sriov_nr_virtfn;
912 int status = 0, rc = 0;
913 int job_posted = 1, sriov_err;
915 if (!phba->cfg_enable_hba_reset)
918 if ((phba->sli_rev < LPFC_SLI_REV4) ||
919 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
920 LPFC_SLI_INTF_IF_TYPE_2))
923 /* Keep state if we need to restore back */
924 before_fc_flag = phba->pport->fc_flag;
925 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;
927 /* Disable SR-IOV virtual functions if enabled */
928 if (phba->cfg_sriov_nr_virtfn) {
929 pci_disable_sriov(pdev);
930 phba->cfg_sriov_nr_virtfn = 0;
933 if (opcode == LPFC_FW_DUMP)
934 phba->hba_flag |= HBA_FW_DUMP_OP;
936 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
939 phba->hba_flag &= ~HBA_FW_DUMP_OP;
943 /* wait for the device to be quiesced before firmware reset */
946 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
947 LPFC_CTL_PDEV_CTL_OFFSET);
949 if (opcode == LPFC_FW_DUMP)
950 reg_val |= LPFC_FW_DUMP_REQUEST;
951 else if (opcode == LPFC_FW_RESET)
952 reg_val |= LPFC_CTL_PDEV_CTL_FRST;
953 else if (opcode == LPFC_DV_RESET)
954 reg_val |= LPFC_CTL_PDEV_CTL_DRST;
956 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
957 LPFC_CTL_PDEV_CTL_OFFSET);
959 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
961 /* delay driver action following IF_TYPE_2 reset */
962 rc = lpfc_sli4_pdev_status_reg_wait(phba);
965 /* no privilege for reset */
966 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
967 "3150 No privilege to perform the requested "
968 "access: x%x\n", reg_val);
969 } else if (rc == -EIO) {
970 /* reset failed, there is nothing more we can do */
971 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
972 "3153 Fail to perform the requested "
973 "access: x%x\n", reg_val);
977 /* keep the original port state */
978 if (before_fc_flag & FC_OFFLINE_MODE)
981 init_completion(&online_compl);
982 job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
987 wait_for_completion(&online_compl);
990 /* in any case, restore the virtual functions enabled as before */
991 if (sriov_nr_virtfn) {
993 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
995 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
998 /* return proper error code */
1009 * lpfc_nport_evt_cnt_show - Return the number of nport events
1010 * @dev: class device that is converted into a Scsi_host.
1011 * @attr: device attribute, not used.
1012 * @buf: on return contains the ascii number of nport events.
1014 * Returns: size of formatted string.
1017 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
1020 struct Scsi_Host *shost = class_to_shost(dev);
1021 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1022 struct lpfc_hba *phba = vport->phba;
1024 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
1028 * lpfc_board_mode_show - Return the state of the board
1029 * @dev: class device that is converted into a Scsi_host.
1030 * @attr: device attribute, not used.
1031 * @buf: on return contains the state of the adapter.
1033 * Returns: size of formatted string.
1036 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
1039 struct Scsi_Host *shost = class_to_shost(dev);
1040 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1041 struct lpfc_hba *phba = vport->phba;
1044 if (phba->link_state == LPFC_HBA_ERROR)
1046 else if (phba->link_state == LPFC_WARM_START)
1047 state = "warm start";
1048 else if (phba->link_state == LPFC_INIT_START)
1053 return snprintf(buf, PAGE_SIZE, "%s\n", state);
1057 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
1058 * @dev: class device that is converted into a Scsi_host.
1059 * @attr: device attribute, not used.
1060 * @buf: containing one of the strings "online", "offline", "warm" or "error".
1061 * @count: unused variable.
1064 * -EACCES if enable hba reset not enabled
1065 * -EINVAL if the buffer does not contain a valid string (see above)
1066 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
1067 * buf length greater than zero indicates success
1070 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
1071 const char *buf, size_t count)
1073 struct Scsi_Host *shost = class_to_shost(dev);
1074 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1075 struct lpfc_hba *phba = vport->phba;
1076 struct completion online_compl;
1077 char *board_mode_str = NULL;
1081 if (!phba->cfg_enable_hba_reset) {
1083 goto board_mode_out;
1086 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1087 "3050 lpfc_board_mode set to %s\n", buf);
1089 init_completion(&online_compl);
1091 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
1092 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1096 goto board_mode_out;
1098 wait_for_completion(&online_compl);
1099 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
1100 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1101 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
1102 if (phba->sli_rev == LPFC_SLI_REV4)
1105 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
1106 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
1107 if (phba->sli_rev == LPFC_SLI_REV4)
1110 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
1111 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
1112 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
1113 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
1114 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
1115 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
1116 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
1124 board_mode_str = strchr(buf, '\n');
1126 *board_mode_str = '\0';
1127 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1128 "3097 Failed \"%s\", status(%d), "
1130 buf, status, phba->pport->fc_flag);
1136 * lpfc_get_hba_info - Return various bits of informaton about the adapter
1137 * @phba: pointer to the adapter structure.
1138 * @mxri: max xri count.
1139 * @axri: available xri count.
1140 * @mrpi: max rpi count.
1141 * @arpi: available rpi count.
1142 * @mvpi: max vpi count.
1143 * @avpi: available vpi count.
1146 * If an integer pointer for an count is not null then the value for the
1147 * count is returned.
1154 lpfc_get_hba_info(struct lpfc_hba *phba,
1155 uint32_t *mxri, uint32_t *axri,
1156 uint32_t *mrpi, uint32_t *arpi,
1157 uint32_t *mvpi, uint32_t *avpi)
1159 struct lpfc_mbx_read_config *rd_config;
1160 LPFC_MBOXQ_t *pmboxq;
1166 * prevent udev from issuing mailbox commands until the port is
1169 if (phba->link_state < LPFC_LINK_DOWN ||
1170 !phba->mbox_mem_pool ||
1171 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
1174 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
1177 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1180 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1182 pmb = &pmboxq->u.mb;
1183 pmb->mbxCommand = MBX_READ_CONFIG;
1184 pmb->mbxOwner = OWN_HOST;
1185 pmboxq->context1 = NULL;
1187 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1188 rc = MBX_NOT_FINISHED;
1190 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1192 if (rc != MBX_SUCCESS) {
1193 if (rc != MBX_TIMEOUT)
1194 mempool_free(pmboxq, phba->mbox_mem_pool);
1198 if (phba->sli_rev == LPFC_SLI_REV4) {
1199 rd_config = &pmboxq->u.mqe.un.rd_config;
1201 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
1203 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
1204 phba->sli4_hba.max_cfg_param.rpi_used;
1206 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
1208 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
1209 phba->sli4_hba.max_cfg_param.xri_used;
1211 /* Account for differences with SLI-3. Get vpi count from
1212 * mailbox data and subtract one for max vpi value.
1214 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
1215 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
1217 /* Limit the max we support */
1218 if (max_vpi > LPFC_MAX_VPI)
1219 max_vpi = LPFC_MAX_VPI;
1223 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
1226 *mrpi = pmb->un.varRdConfig.max_rpi;
1228 *arpi = pmb->un.varRdConfig.avail_rpi;
1230 *mxri = pmb->un.varRdConfig.max_xri;
1232 *axri = pmb->un.varRdConfig.avail_xri;
1234 *mvpi = pmb->un.varRdConfig.max_vpi;
1236 /* avail_vpi is only valid if link is up and ready */
1237 if (phba->link_state == LPFC_HBA_READY)
1238 *avpi = pmb->un.varRdConfig.avail_vpi;
1240 *avpi = pmb->un.varRdConfig.max_vpi;
1244 mempool_free(pmboxq, phba->mbox_mem_pool);
1249 * lpfc_max_rpi_show - Return maximum rpi
1250 * @dev: class device that is converted into a Scsi_host.
1251 * @attr: device attribute, not used.
1252 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
1255 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1256 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1257 * to "Unknown" and the buffer length is returned, therefore the caller
1258 * must check for "Unknown" in the buffer to detect a failure.
1260 * Returns: size of formatted string.
1263 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
1266 struct Scsi_Host *shost = class_to_shost(dev);
1267 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1268 struct lpfc_hba *phba = vport->phba;
1271 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
1272 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1273 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1277 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
1278 * @dev: class device that is converted into a Scsi_host.
1279 * @attr: device attribute, not used.
1280 * @buf: containing the used rpi count in decimal or "Unknown".
1283 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
1284 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1285 * to "Unknown" and the buffer length is returned, therefore the caller
1286 * must check for "Unknown" in the buffer to detect a failure.
1288 * Returns: size of formatted string.
1291 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
1294 struct Scsi_Host *shost = class_to_shost(dev);
1295 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1296 struct lpfc_hba *phba = vport->phba;
1299 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1300 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1301 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1305 * lpfc_max_xri_show - Return maximum xri
1306 * @dev: class device that is converted into a Scsi_host.
1307 * @attr: device attribute, not used.
1308 * @buf: on return contains the maximum xri count in decimal or "Unknown".
1311 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1312 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1313 * to "Unknown" and the buffer length is returned, therefore the caller
1314 * must check for "Unknown" in the buffer to detect a failure.
1316 * Returns: size of formatted string.
1319 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
1322 struct Scsi_Host *shost = class_to_shost(dev);
1323 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1324 struct lpfc_hba *phba = vport->phba;
1327 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1328 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1329 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1333 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1334 * @dev: class device that is converted into a Scsi_host.
1335 * @attr: device attribute, not used.
1336 * @buf: on return contains the used xri count in decimal or "Unknown".
1339 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
1340 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1341 * to "Unknown" and the buffer length is returned, therefore the caller
1342 * must check for "Unknown" in the buffer to detect a failure.
1344 * Returns: size of formatted string.
1347 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
1350 struct Scsi_Host *shost = class_to_shost(dev);
1351 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1352 struct lpfc_hba *phba = vport->phba;
1355 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
1356 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1357 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1361 * lpfc_max_vpi_show - Return maximum vpi
1362 * @dev: class device that is converted into a Scsi_host.
1363 * @attr: device attribute, not used.
1364 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
1367 * Calls lpfc_get_hba_info() asking for just the mvpi count.
1368 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1369 * to "Unknown" and the buffer length is returned, therefore the caller
1370 * must check for "Unknown" in the buffer to detect a failure.
1372 * Returns: size of formatted string.
1375 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
1378 struct Scsi_Host *shost = class_to_shost(dev);
1379 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1380 struct lpfc_hba *phba = vport->phba;
1383 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
1384 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1385 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1389 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1390 * @dev: class device that is converted into a Scsi_host.
1391 * @attr: device attribute, not used.
1392 * @buf: on return contains the used vpi count in decimal or "Unknown".
1395 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
1396 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1397 * to "Unknown" and the buffer length is returned, therefore the caller
1398 * must check for "Unknown" in the buffer to detect a failure.
1400 * Returns: size of formatted string.
1403 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
1406 struct Scsi_Host *shost = class_to_shost(dev);
1407 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1408 struct lpfc_hba *phba = vport->phba;
1411 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
1412 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1413 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1417 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1418 * @dev: class device that is converted into a Scsi_host.
1419 * @attr: device attribute, not used.
1420 * @buf: text that must be interpreted to determine if npiv is supported.
1423 * Buffer will contain text indicating npiv is not suppoerted on the port,
1424 * the port is an NPIV physical port, or it is an npiv virtual port with
1425 * the id of the vport.
1427 * Returns: size of formatted string.
1430 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
1433 struct Scsi_Host *shost = class_to_shost(dev);
1434 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1435 struct lpfc_hba *phba = vport->phba;
1437 if (!(phba->max_vpi))
1438 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
1439 if (vport->port_type == LPFC_PHYSICAL_PORT)
1440 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
1441 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
1445 * lpfc_poll_show - Return text about poll support for the adapter
1446 * @dev: class device that is converted into a Scsi_host.
1447 * @attr: device attribute, not used.
1448 * @buf: on return contains the cfg_poll in hex.
1451 * cfg_poll should be a lpfc_polling_flags type.
1453 * Returns: size of formatted string.
1456 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
1459 struct Scsi_Host *shost = class_to_shost(dev);
1460 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1461 struct lpfc_hba *phba = vport->phba;
1463 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
1467 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1468 * @dev: class device that is converted into a Scsi_host.
1469 * @attr: device attribute, not used.
1470 * @buf: one or more lpfc_polling_flags values.
1474 * buf contents converted to integer and checked for a valid value.
1477 * -EINVAL if the buffer connot be converted or is out of range
1478 * length of the buf on success
1481 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
1482 const char *buf, size_t count)
1484 struct Scsi_Host *shost = class_to_shost(dev);
1485 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1486 struct lpfc_hba *phba = vport->phba;
1491 if (!isdigit(buf[0]))
1494 if (sscanf(buf, "%i", &val) != 1)
1497 if ((val & 0x3) != val)
1500 if (phba->sli_rev == LPFC_SLI_REV4)
1503 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1504 "3051 lpfc_poll changed from %d to %d\n",
1505 phba->cfg_poll, val);
1507 spin_lock_irq(&phba->hbalock);
1509 old_val = phba->cfg_poll;
1511 if (val & ENABLE_FCP_RING_POLLING) {
1512 if ((val & DISABLE_FCP_RING_INT) &&
1513 !(old_val & DISABLE_FCP_RING_INT)) {
1514 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1515 spin_unlock_irq(&phba->hbalock);
1518 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
1519 writel(creg_val, phba->HCregaddr);
1520 readl(phba->HCregaddr); /* flush */
1522 lpfc_poll_start_timer(phba);
1524 } else if (val != 0x0) {
1525 spin_unlock_irq(&phba->hbalock);
1529 if (!(val & DISABLE_FCP_RING_INT) &&
1530 (old_val & DISABLE_FCP_RING_INT))
1532 spin_unlock_irq(&phba->hbalock);
1533 del_timer(&phba->fcp_poll_timer);
1534 spin_lock_irq(&phba->hbalock);
1535 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1536 spin_unlock_irq(&phba->hbalock);
1539 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1540 writel(creg_val, phba->HCregaddr);
1541 readl(phba->HCregaddr); /* flush */
1544 phba->cfg_poll = val;
1546 spin_unlock_irq(&phba->hbalock);
1552 * lpfc_fips_level_show - Return the current FIPS level for the HBA
1553 * @dev: class unused variable.
1554 * @attr: device attribute, not used.
1555 * @buf: on return contains the module description text.
1557 * Returns: size of formatted string.
1560 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr,
1563 struct Scsi_Host *shost = class_to_shost(dev);
1564 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1565 struct lpfc_hba *phba = vport->phba;
1567 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
1571 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
1572 * @dev: class unused variable.
1573 * @attr: device attribute, not used.
1574 * @buf: on return contains the module description text.
1576 * Returns: size of formatted string.
1579 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr,
1582 struct Scsi_Host *shost = class_to_shost(dev);
1583 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1584 struct lpfc_hba *phba = vport->phba;
1586 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
1590 * lpfc_dss_show - Return the current state of dss and the configured state
1591 * @dev: class converted to a Scsi_host structure.
1592 * @attr: device attribute, not used.
1593 * @buf: on return contains the formatted text.
1595 * Returns: size of formatted string.
1598 lpfc_dss_show(struct device *dev, struct device_attribute *attr,
1601 struct Scsi_Host *shost = class_to_shost(dev);
1602 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1603 struct lpfc_hba *phba = vport->phba;
1605 return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
1606 (phba->cfg_enable_dss) ? "Enabled" : "Disabled",
1607 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
1612 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
1613 * @dev: class converted to a Scsi_host structure.
1614 * @attr: device attribute, not used.
1615 * @buf: on return contains the formatted support level.
1618 * Returns the maximum number of virtual functions a physical function can
1619 * support, 0 will be returned if called on virtual function.
1621 * Returns: size of formatted string.
1624 lpfc_sriov_hw_max_virtfn_show(struct device *dev,
1625 struct device_attribute *attr,
1628 struct Scsi_Host *shost = class_to_shost(dev);
1629 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1630 struct lpfc_hba *phba = vport->phba;
1631 uint16_t max_nr_virtfn;
1633 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
1634 return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
1637 static inline bool lpfc_rangecheck(uint val, uint min, uint max)
1639 return val >= min && val <= max;
1643 * lpfc_param_show - Return a cfg attribute value in decimal
1646 * Macro that given an attr e.g. hba_queue_depth expands
1647 * into a function with the name lpfc_hba_queue_depth_show.
1649 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1650 * @dev: class device that is converted into a Scsi_host.
1651 * @attr: device attribute, not used.
1652 * @buf: on return contains the attribute value in decimal.
1654 * Returns: size of formatted string.
1656 #define lpfc_param_show(attr) \
1658 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1661 struct Scsi_Host *shost = class_to_shost(dev);\
1662 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1663 struct lpfc_hba *phba = vport->phba;\
1664 return snprintf(buf, PAGE_SIZE, "%d\n",\
1669 * lpfc_param_hex_show - Return a cfg attribute value in hex
1672 * Macro that given an attr e.g. hba_queue_depth expands
1673 * into a function with the name lpfc_hba_queue_depth_show
1675 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1676 * @dev: class device that is converted into a Scsi_host.
1677 * @attr: device attribute, not used.
1678 * @buf: on return contains the attribute value in hexadecimal.
1680 * Returns: size of formatted string.
1682 #define lpfc_param_hex_show(attr) \
1684 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1687 struct Scsi_Host *shost = class_to_shost(dev);\
1688 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1689 struct lpfc_hba *phba = vport->phba;\
1691 val = phba->cfg_##attr;\
1692 return snprintf(buf, PAGE_SIZE, "%#x\n",\
1697 * lpfc_param_init - Initializes a cfg attribute
1700 * Macro that given an attr e.g. hba_queue_depth expands
1701 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1702 * takes a default argument, a minimum and maximum argument.
1704 * lpfc_##attr##_init: Initializes an attribute.
1705 * @phba: pointer the the adapter structure.
1706 * @val: integer attribute value.
1708 * Validates the min and max values then sets the adapter config field
1709 * accordingly, or uses the default if out of range and prints an error message.
1713 * -EINVAL if default used
1715 #define lpfc_param_init(attr, default, minval, maxval) \
1717 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1719 if (lpfc_rangecheck(val, minval, maxval)) {\
1720 phba->cfg_##attr = val;\
1723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1724 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
1725 "allowed range is ["#minval", "#maxval"]\n", val); \
1726 phba->cfg_##attr = default;\
1731 * lpfc_param_set - Set a cfg attribute value
1734 * Macro that given an attr e.g. hba_queue_depth expands
1735 * into a function with the name lpfc_hba_queue_depth_set
1737 * lpfc_##attr##_set: Sets an attribute value.
1738 * @phba: pointer the the adapter structure.
1739 * @val: integer attribute value.
1742 * Validates the min and max values then sets the
1743 * adapter config field if in the valid range. prints error message
1744 * and does not set the parameter if invalid.
1748 * -EINVAL if val is invalid
1750 #define lpfc_param_set(attr, default, minval, maxval) \
1752 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1754 if (lpfc_rangecheck(val, minval, maxval)) {\
1755 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1756 "3052 lpfc_" #attr " changed from %d to %d\n", \
1757 phba->cfg_##attr, val); \
1758 phba->cfg_##attr = val;\
1761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1762 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
1763 "allowed range is ["#minval", "#maxval"]\n", val); \
1768 * lpfc_param_store - Set a vport attribute value
1771 * Macro that given an attr e.g. hba_queue_depth expands
1772 * into a function with the name lpfc_hba_queue_depth_store.
1774 * lpfc_##attr##_store: Set an sttribute value.
1775 * @dev: class device that is converted into a Scsi_host.
1776 * @attr: device attribute, not used.
1777 * @buf: contains the attribute value in ascii.
1781 * Convert the ascii text number to an integer, then
1782 * use the lpfc_##attr##_set function to set the value.
1785 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1786 * length of buffer upon success.
1788 #define lpfc_param_store(attr) \
1790 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1791 const char *buf, size_t count) \
1793 struct Scsi_Host *shost = class_to_shost(dev);\
1794 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1795 struct lpfc_hba *phba = vport->phba;\
1797 if (!isdigit(buf[0]))\
1799 if (sscanf(buf, "%i", &val) != 1)\
1801 if (lpfc_##attr##_set(phba, val) == 0) \
1802 return strlen(buf);\
1808 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1811 * Macro that given an attr e.g. hba_queue_depth expands
1812 * into a function with the name lpfc_hba_queue_depth_show
1814 * lpfc_##attr##_show: prints the attribute value in decimal.
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 decimal.
1819 * Returns: length of formatted string.
1821 #define lpfc_vport_param_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;\
1828 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
1832 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1835 * Macro that given an attr e.g.
1836 * hba_queue_depth expands into a function with the name
1837 * lpfc_hba_queue_depth_show
1839 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1840 * @dev: class device that is converted into a Scsi_host.
1841 * @attr: device attribute, not used.
1842 * @buf: on return contains the attribute value in hexadecimal.
1844 * Returns: length of formatted string.
1846 #define lpfc_vport_param_hex_show(attr) \
1848 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1851 struct Scsi_Host *shost = class_to_shost(dev);\
1852 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1853 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
1857 * lpfc_vport_param_init - Initialize a vport cfg attribute
1860 * Macro that given an attr e.g. hba_queue_depth expands
1861 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1862 * takes a default argument, a minimum and maximum argument.
1864 * lpfc_##attr##_init: validates the min and max values then sets the
1865 * adapter config field accordingly, or uses the default if out of range
1866 * and prints an error message.
1867 * @phba: pointer the the adapter structure.
1868 * @val: integer attribute value.
1872 * -EINVAL if default used
1874 #define lpfc_vport_param_init(attr, default, minval, maxval) \
1876 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1878 if (lpfc_rangecheck(val, minval, maxval)) {\
1879 vport->cfg_##attr = val;\
1882 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1883 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1884 "allowed range is ["#minval", "#maxval"]\n", val); \
1885 vport->cfg_##attr = default;\
1890 * lpfc_vport_param_set - Set a vport cfg attribute
1893 * Macro that given an attr e.g. hba_queue_depth expands
1894 * into a function with the name lpfc_hba_queue_depth_set
1896 * lpfc_##attr##_set: validates the min and max values then sets the
1897 * adapter config field if in the valid range. prints error message
1898 * and does not set the parameter if invalid.
1899 * @phba: pointer the the adapter structure.
1900 * @val: integer attribute value.
1904 * -EINVAL if val is invalid
1906 #define lpfc_vport_param_set(attr, default, minval, maxval) \
1908 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1910 if (lpfc_rangecheck(val, minval, maxval)) {\
1911 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1912 "3053 lpfc_" #attr \
1913 " changed from %d (x%x) to %d (x%x)\n", \
1914 vport->cfg_##attr, vport->cfg_##attr, \
1916 vport->cfg_##attr = val;\
1919 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1920 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1921 "allowed range is ["#minval", "#maxval"]\n", val); \
1926 * lpfc_vport_param_store - Set a vport attribute
1929 * Macro that given an attr e.g. hba_queue_depth
1930 * expands into a function with the name lpfc_hba_queue_depth_store
1932 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1933 * use the lpfc_##attr##_set function to set the value.
1934 * @cdev: class device that is converted into a Scsi_host.
1935 * @buf: contains the attribute value in decimal.
1939 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1940 * length of buffer upon success.
1942 #define lpfc_vport_param_store(attr) \
1944 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1945 const char *buf, size_t count) \
1947 struct Scsi_Host *shost = class_to_shost(dev);\
1948 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1950 if (!isdigit(buf[0]))\
1952 if (sscanf(buf, "%i", &val) != 1)\
1954 if (lpfc_##attr##_set(vport, val) == 0) \
1955 return strlen(buf);\
1961 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
1962 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
1963 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
1964 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
1965 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
1966 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
1967 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
1968 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
1969 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
1970 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
1971 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
1972 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
1973 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
1974 lpfc_link_state_store);
1975 static DEVICE_ATTR(option_rom_version, S_IRUGO,
1976 lpfc_option_rom_version_show, NULL);
1977 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
1978 lpfc_num_discovered_ports_show, NULL);
1979 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
1980 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
1981 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
1982 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
1983 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
1984 lpfc_board_mode_show, lpfc_board_mode_store);
1985 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
1986 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
1987 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
1988 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
1989 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
1990 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
1991 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
1992 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
1993 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
1994 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
1995 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
1996 static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
1997 static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
1998 lpfc_sriov_hw_max_virtfn_show, NULL);
1999 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
2000 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
2003 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
2006 * lpfc_wwn_set - Convert string to the 8 byte WWN value.
2008 * @cnt: Length of string.
2009 * @wwn: Array to receive converted wwn value.
2012 * -EINVAL if the buffer does not contain a valid wwn
2016 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[])
2020 /* Count may include a LF at end of string */
2021 if (buf[cnt-1] == '\n')
2024 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) ||
2025 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
2028 memset(wwn, 0, WWN_SZ);
2030 /* Validate and store the new name */
2031 for (i = 0, j = 0; i < 16; i++) {
2032 if ((*buf >= 'a') && (*buf <= 'f'))
2033 j = ((j << 4) | ((*buf++ - 'a') + 10));
2034 else if ((*buf >= 'A') && (*buf <= 'F'))
2035 j = ((j << 4) | ((*buf++ - 'A') + 10));
2036 else if ((*buf >= '0') && (*buf <= '9'))
2037 j = ((j << 4) | (*buf++ - '0'));
2041 wwn[i/2] = j & 0xff;
2048 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
2049 * @dev: class device that is converted into a Scsi_host.
2050 * @attr: device attribute, not used.
2051 * @buf: containing the string lpfc_soft_wwn_key.
2052 * @count: must be size of lpfc_soft_wwn_key.
2055 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
2056 * length of buf indicates success
2059 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
2060 const char *buf, size_t count)
2062 struct Scsi_Host *shost = class_to_shost(dev);
2063 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2064 struct lpfc_hba *phba = vport->phba;
2065 unsigned int cnt = count;
2068 * We're doing a simple sanity check for soft_wwpn setting.
2069 * We require that the user write a specific key to enable
2070 * the soft_wwpn attribute to be settable. Once the attribute
2071 * is written, the enable key resets. If further updates are
2072 * desired, the key must be written again to re-enable the
2075 * The "key" is not secret - it is a hardcoded string shown
2076 * here. The intent is to protect against the random user or
2077 * application that is just writing attributes.
2080 /* count may include a LF at end of string */
2081 if (buf[cnt-1] == '\n')
2084 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
2085 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
2088 phba->soft_wwn_enable = 1;
2091 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
2092 lpfc_soft_wwn_enable_store);
2095 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
2096 * @dev: class device that is converted into a Scsi_host.
2097 * @attr: device attribute, not used.
2098 * @buf: on return contains the wwpn in hexadecimal.
2100 * Returns: size of formatted string.
2103 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
2106 struct Scsi_Host *shost = class_to_shost(dev);
2107 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2108 struct lpfc_hba *phba = vport->phba;
2110 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2111 (unsigned long long)phba->cfg_soft_wwpn);
2115 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
2116 * @dev class device that is converted into a Scsi_host.
2117 * @attr: device attribute, not used.
2118 * @buf: contains the wwpn in hexadecimal.
2119 * @count: number of wwpn bytes in buf
2122 * -EACCES hba reset not enabled, adapter over temp
2123 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
2124 * -EIO error taking adapter offline or online
2125 * value of count on success
2128 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
2129 const char *buf, size_t count)
2131 struct Scsi_Host *shost = class_to_shost(dev);
2132 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2133 struct lpfc_hba *phba = vport->phba;
2134 struct completion online_compl;
2135 int stat1 = 0, stat2 = 0;
2136 unsigned int cnt = count;
2140 if (!phba->cfg_enable_hba_reset)
2142 spin_lock_irq(&phba->hbalock);
2143 if (phba->over_temp_state == HBA_OVER_TEMP) {
2144 spin_unlock_irq(&phba->hbalock);
2147 spin_unlock_irq(&phba->hbalock);
2148 /* count may include a LF at end of string */
2149 if (buf[cnt-1] == '\n')
2152 if (!phba->soft_wwn_enable)
2155 /* lock setting wwpn, wwnn down */
2156 phba->soft_wwn_enable = 0;
2158 rc = lpfc_wwn_set(buf, cnt, wwpn);
2160 /* not able to set wwpn, unlock it */
2161 phba->soft_wwn_enable = 1;
2165 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
2166 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
2167 if (phba->cfg_soft_wwnn)
2168 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
2170 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2171 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
2173 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
2175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2176 "0463 lpfc_soft_wwpn attribute set failed to "
2177 "reinit adapter - %d\n", stat1);
2178 init_completion(&online_compl);
2179 rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
2184 wait_for_completion(&online_compl);
2186 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2187 "0464 lpfc_soft_wwpn attribute set failed to "
2188 "reinit adapter - %d\n", stat2);
2189 return (stat1 || stat2) ? -EIO : count;
2191 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,
2192 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
2195 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
2196 * @dev: class device that is converted into a Scsi_host.
2197 * @attr: device attribute, not used.
2198 * @buf: on return contains the wwnn in hexadecimal.
2200 * Returns: size of formatted string.
2203 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
2206 struct Scsi_Host *shost = class_to_shost(dev);
2207 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2208 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2209 (unsigned long long)phba->cfg_soft_wwnn);
2213 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
2214 * @cdev: class device that is converted into a Scsi_host.
2215 * @buf: contains the ww node name in hexadecimal.
2216 * @count: number of wwnn bytes in buf.
2219 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
2220 * value of count on success
2223 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
2224 const char *buf, size_t count)
2226 struct Scsi_Host *shost = class_to_shost(dev);
2227 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2228 unsigned int cnt = count;
2232 /* count may include a LF at end of string */
2233 if (buf[cnt-1] == '\n')
2236 if (!phba->soft_wwn_enable)
2239 rc = lpfc_wwn_set(buf, cnt, wwnn);
2241 /* Allow wwnn to be set many times, as long as the enable
2242 * is set. However, once the wwpn is set, everything locks.
2247 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
2249 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2250 "lpfc%d: soft_wwnn set. Value will take effect upon "
2251 "setting of the soft_wwpn\n", phba->brd_no);
2255 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,
2256 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
2259 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
2260 * Optimized Access Storage (OAS) operations.
2261 * @dev: class device that is converted into a Scsi_host.
2262 * @attr: device attribute, not used.
2263 * @buf: buffer for passing information.
2269 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr,
2272 struct Scsi_Host *shost = class_to_shost(dev);
2273 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2275 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2276 wwn_to_u64(phba->cfg_oas_tgt_wwpn));
2280 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for
2281 * Optimized Access Storage (OAS) operations.
2282 * @dev: class device that is converted into a Scsi_host.
2283 * @attr: device attribute, not used.
2284 * @buf: buffer for passing information.
2285 * @count: Size of the data buffer.
2288 * -EINVAL count is invalid, invalid wwpn byte invalid
2289 * -EPERM oas is not supported by hba
2290 * value of count on success
2293 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr,
2294 const char *buf, size_t count)
2296 struct Scsi_Host *shost = class_to_shost(dev);
2297 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2298 unsigned int cnt = count;
2299 uint8_t wwpn[WWN_SZ];
2305 /* count may include a LF at end of string */
2306 if (buf[cnt-1] == '\n')
2309 rc = lpfc_wwn_set(buf, cnt, wwpn);
2313 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2314 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2315 if (wwn_to_u64(wwpn) == 0)
2316 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET;
2318 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET;
2319 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
2320 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
2323 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR,
2324 lpfc_oas_tgt_show, lpfc_oas_tgt_store);
2327 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for
2328 * Optimized Access Storage (OAS) operations.
2329 * @dev: class device that is converted into a Scsi_host.
2330 * @attr: device attribute, not used.
2331 * @buf: buffer for passing information.
2337 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr,
2340 struct Scsi_Host *shost = class_to_shost(dev);
2341 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2343 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority);
2347 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for
2348 * Optimized Access Storage (OAS) operations.
2349 * @dev: class device that is converted into a Scsi_host.
2350 * @attr: device attribute, not used.
2351 * @buf: buffer for passing information.
2352 * @count: Size of the data buffer.
2355 * -EINVAL count is invalid, invalid wwpn byte invalid
2356 * -EPERM oas is not supported by hba
2357 * value of count on success
2360 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr,
2361 const char *buf, size_t count)
2363 struct Scsi_Host *shost = class_to_shost(dev);
2364 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2365 unsigned int cnt = count;
2372 /* count may include a LF at end of string */
2373 if (buf[cnt-1] == '\n')
2376 ret = kstrtoul(buf, 0, &val);
2377 if (ret || (val > 0x7f))
2381 phba->cfg_oas_priority = (uint8_t)val;
2383 phba->cfg_oas_priority = phba->cfg_XLanePriority;
2386 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR,
2387 lpfc_oas_priority_show, lpfc_oas_priority_store);
2390 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled
2391 * for Optimized Access Storage (OAS) operations.
2392 * @dev: class device that is converted into a Scsi_host.
2393 * @attr: device attribute, not used.
2394 * @buf: buffer for passing information.
2397 * value of count on success
2400 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr,
2403 struct Scsi_Host *shost = class_to_shost(dev);
2404 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2406 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2407 wwn_to_u64(phba->cfg_oas_vpt_wwpn));
2411 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled
2412 * for Optimized Access Storage (OAS) operations.
2413 * @dev: class device that is converted into a Scsi_host.
2414 * @attr: device attribute, not used.
2415 * @buf: buffer for passing information.
2416 * @count: Size of the data buffer.
2419 * -EINVAL count is invalid, invalid wwpn byte invalid
2420 * -EPERM oas is not supported by hba
2421 * value of count on success
2424 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr,
2425 const char *buf, size_t count)
2427 struct Scsi_Host *shost = class_to_shost(dev);
2428 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2429 unsigned int cnt = count;
2430 uint8_t wwpn[WWN_SZ];
2436 /* count may include a LF at end of string */
2437 if (buf[cnt-1] == '\n')
2440 rc = lpfc_wwn_set(buf, cnt, wwpn);
2444 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2445 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2446 if (wwn_to_u64(wwpn) == 0)
2447 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT;
2449 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT;
2450 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
2451 phba->cfg_oas_priority = phba->cfg_XLanePriority;
2452 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
2455 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR,
2456 lpfc_oas_vpt_show, lpfc_oas_vpt_store);
2459 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled)
2460 * of whether luns will be enabled or disabled
2461 * for Optimized Access Storage (OAS) operations.
2462 * @dev: class device that is converted into a Scsi_host.
2463 * @attr: device attribute, not used.
2464 * @buf: buffer for passing information.
2467 * size of formatted string.
2470 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr,
2473 struct Scsi_Host *shost = class_to_shost(dev);
2474 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2476 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
2480 * lpfc_oas_lun_state_store - Store the state (enabled or disabled)
2481 * of whether luns will be enabled or disabled
2482 * for Optimized Access Storage (OAS) operations.
2483 * @dev: class device that is converted into a Scsi_host.
2484 * @attr: device attribute, not used.
2485 * @buf: buffer for passing information.
2486 * @count: Size of the data buffer.
2489 * -EINVAL count is invalid, invalid wwpn byte invalid
2490 * -EPERM oas is not supported by hba
2491 * value of count on success
2494 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr,
2495 const char *buf, size_t count)
2497 struct Scsi_Host *shost = class_to_shost(dev);
2498 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2504 if (!isdigit(buf[0]))
2507 if (sscanf(buf, "%i", &val) != 1)
2510 if ((val != 0) && (val != 1))
2513 phba->cfg_oas_lun_state = val;
2516 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR,
2517 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store);
2520 * lpfc_oas_lun_status_show - Return the status of the Optimized Access
2521 * Storage (OAS) lun returned by the
2522 * lpfc_oas_lun_show function.
2523 * @dev: class device that is converted into a Scsi_host.
2524 * @attr: device attribute, not used.
2525 * @buf: buffer for passing information.
2528 * size of formatted string.
2531 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr,
2534 struct Scsi_Host *shost = class_to_shost(dev);
2535 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2537 if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
2540 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
2542 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
2543 lpfc_oas_lun_status_show, NULL);
2547 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage
2549 * @phba: lpfc_hba pointer.
2550 * @ndlp: pointer to fcp target node.
2551 * @lun: the fc lun for setting oas state.
2552 * @oas_state: the oas state to be set to the lun.
2556 * -EPERM OAS is not enabled or not supported by this port.
2560 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2561 uint8_t tgt_wwpn[], uint64_t lun,
2562 uint32_t oas_state, uint8_t pri)
2571 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
2572 (struct lpfc_name *)tgt_wwpn,
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,
2639 uint32_t oas_state, uint8_t pri)
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;
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;
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:0x%llx "
2736 "priority 0x%x with oas state %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_priority, 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,
2744 phba->cfg_oas_priority);
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 LPFC_ATTR(sli_mode, 0, 0, 3,
2764 "SLI mode selector:"
2765 " 0 - auto (SLI-3 if supported),"
2766 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
2767 " 3 - select SLI-3");
2769 LPFC_ATTR_R(enable_npiv, 1, 0, 1,
2770 "Enable NPIV functionality");
2772 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
2773 "FCF Fast failover=1 Priority failover=2");
2775 int lpfc_enable_rrq = 2;
2776 module_param(lpfc_enable_rrq, int, S_IRUGO);
2777 MODULE_PARM_DESC(lpfc_enable_rrq, "Enable RRQ functionality");
2778 lpfc_param_show(enable_rrq);
2780 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures
2781 # 0x0 = disabled, XRI/OXID use not tracked.
2782 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent.
2783 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent.
2785 lpfc_param_init(enable_rrq, 2, 0, 2);
2786 static DEVICE_ATTR(lpfc_enable_rrq, S_IRUGO, lpfc_enable_rrq_show, NULL);
2789 # lpfc_suppress_link_up: Bring link up at initialization
2790 # 0x0 = bring link up (issue MBX_INIT_LINK)
2791 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
2792 # 0x2 = never bring up link
2793 # Default value is 0.
2795 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
2796 LPFC_DELAY_INIT_LINK_INDEFINITELY,
2797 "Suppress Link Up at initialization");
2799 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
2807 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2809 struct Scsi_Host *shost = class_to_shost(dev);
2810 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2812 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
2815 static DEVICE_ATTR(iocb_hw, S_IRUGO,
2816 lpfc_iocb_hw_show, NULL);
2818 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2820 struct Scsi_Host *shost = class_to_shost(dev);
2821 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2823 return snprintf(buf, PAGE_SIZE, "%d\n",
2824 phba->sli.ring[LPFC_ELS_RING].txq_max);
2827 static DEVICE_ATTR(txq_hw, S_IRUGO,
2828 lpfc_txq_hw_show, NULL);
2830 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
2833 struct Scsi_Host *shost = class_to_shost(dev);
2834 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2836 return snprintf(buf, PAGE_SIZE, "%d\n",
2837 phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
2840 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
2841 lpfc_txcmplq_hw_show, NULL);
2843 int lpfc_iocb_cnt = 2;
2844 module_param(lpfc_iocb_cnt, int, S_IRUGO);
2845 MODULE_PARM_DESC(lpfc_iocb_cnt,
2846 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
2847 lpfc_param_show(iocb_cnt);
2848 lpfc_param_init(iocb_cnt, 2, 1, 5);
2849 static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO,
2850 lpfc_iocb_cnt_show, NULL);
2853 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
2854 # until the timer expires. Value range is [0,255]. Default value is 30.
2856 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2857 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
2858 module_param(lpfc_nodev_tmo, int, 0);
2859 MODULE_PARM_DESC(lpfc_nodev_tmo,
2860 "Seconds driver will hold I/O waiting "
2861 "for a device to come back");
2864 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2865 * @dev: class converted to a Scsi_host structure.
2866 * @attr: device attribute, not used.
2867 * @buf: on return contains the dev loss timeout in decimal.
2869 * Returns: size of formatted string.
2872 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
2875 struct Scsi_Host *shost = class_to_shost(dev);
2876 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2878 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
2882 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2883 * @vport: lpfc vport structure pointer.
2884 * @val: contains the nodev timeout value.
2887 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
2888 * a kernel error message is printed and zero is returned.
2889 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2890 * Otherwise nodev tmo is set to the default value.
2893 * zero if already set or if val is in range
2894 * -EINVAL val out of range
2897 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
2899 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
2900 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
2901 if (val != LPFC_DEF_DEVLOSS_TMO)
2902 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2903 "0407 Ignoring nodev_tmo module "
2904 "parameter because devloss_tmo is "
2909 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2910 vport->cfg_nodev_tmo = val;
2911 vport->cfg_devloss_tmo = val;
2914 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2915 "0400 lpfc_nodev_tmo attribute cannot be set to"
2916 " %d, allowed range is [%d, %d]\n",
2917 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2918 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2923 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2924 * @vport: lpfc vport structure pointer.
2927 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
2930 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2932 struct Scsi_Host *shost;
2933 struct lpfc_nodelist *ndlp;
2935 shost = lpfc_shost_from_vport(vport);
2936 spin_lock_irq(shost->host_lock);
2937 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2938 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2939 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
2940 spin_unlock_irq(shost->host_lock);
2944 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2945 * @vport: lpfc vport structure pointer.
2946 * @val: contains the tmo value.
2949 * If the devloss tmo is already set or the vport dev loss tmo has changed
2950 * then a kernel error message is printed and zero is returned.
2951 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2952 * Otherwise nodev tmo is set to the default value.
2955 * zero if already set or if val is in range
2956 * -EINVAL val out of range
2959 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2961 if (vport->dev_loss_tmo_changed ||
2962 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2963 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2964 "0401 Ignoring change to nodev_tmo "
2965 "because devloss_tmo is set.\n");
2968 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2969 vport->cfg_nodev_tmo = val;
2970 vport->cfg_devloss_tmo = val;
2972 * For compat: set the fc_host dev loss so new rports
2973 * will get the value.
2975 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2976 lpfc_update_rport_devloss_tmo(vport);
2979 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2980 "0403 lpfc_nodev_tmo attribute cannot be set to"
2981 "%d, allowed range is [%d, %d]\n",
2982 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2986 lpfc_vport_param_store(nodev_tmo)
2988 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
2989 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
2992 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
2993 # disappear until the timer expires. Value range is [0,255]. Default
2996 module_param(lpfc_devloss_tmo, int, S_IRUGO);
2997 MODULE_PARM_DESC(lpfc_devloss_tmo,
2998 "Seconds driver will hold I/O waiting "
2999 "for a device to come back");
3000 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
3001 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
3002 lpfc_vport_param_show(devloss_tmo)
3005 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
3006 * @vport: lpfc vport structure pointer.
3007 * @val: contains the tmo value.
3010 * If val is in a valid range then set the vport nodev tmo,
3011 * devloss tmo, also set the vport dev loss tmo changed flag.
3012 * Else a kernel error message is printed.
3015 * zero if val is in range
3016 * -EINVAL val out of range
3019 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
3021 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3022 vport->cfg_nodev_tmo = val;
3023 vport->cfg_devloss_tmo = val;
3024 vport->dev_loss_tmo_changed = 1;
3025 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3026 lpfc_update_rport_devloss_tmo(vport);
3030 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3031 "0404 lpfc_devloss_tmo attribute cannot be set to"
3032 " %d, allowed range is [%d, %d]\n",
3033 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3037 lpfc_vport_param_store(devloss_tmo)
3038 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
3039 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
3042 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
3043 # deluged with LOTS of information.
3044 # You can set a bit mask to record specific types of verbose messages:
3045 # See lpfc_logmsh.h for definitions.
3047 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
3048 "Verbose logging bit-mask");
3051 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
3052 # objects that have been registered with the nameserver after login.
3054 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
3055 "Deregister nameserver objects before LOGO");
3058 # lun_queue_depth: This parameter is used to limit the number of outstanding
3059 # commands per FCP LUN. Value range is [1,512]. Default value is 30.
3060 # If this parameter value is greater than 1/8th the maximum number of exchanges
3061 # supported by the HBA port, then the lun queue depth will be reduced to
3062 # 1/8th the maximum number of exchanges.
3064 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512,
3065 "Max number of FCP commands we can queue to a specific LUN");
3068 # tgt_queue_depth: This parameter is used to limit the number of outstanding
3069 # commands per target port. Value range is [10,65535]. Default value is 65535.
3071 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
3072 "Max number of FCP commands we can queue to a specific target port");
3075 # hba_queue_depth: This parameter is used to limit the number of outstanding
3076 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
3077 # value is greater than the maximum number of exchanges supported by the HBA,
3078 # then maximum number of exchanges supported by the HBA is used to determine
3079 # the hba_queue_depth.
3081 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
3082 "Max number of FCP commands we can queue to a lpfc HBA");
3085 # peer_port_login: This parameter allows/prevents logins
3086 # between peer ports hosted on the same physical port.
3087 # When this parameter is set 0 peer ports of same physical port
3088 # are not allowed to login to each other.
3089 # When this parameter is set 1 peer ports of same physical port
3090 # are allowed to login to each other.
3091 # Default value of this parameter is 0.
3093 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
3094 "Allow peer ports on the same physical port to login to each "
3098 # restrict_login: This parameter allows/prevents logins
3099 # between Virtual Ports and remote initiators.
3100 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
3101 # other initiators and will attempt to PLOGI all remote ports.
3102 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
3103 # remote ports and will not attempt to PLOGI to other initiators.
3104 # This parameter does not restrict to the physical port.
3105 # This parameter does not restrict logins to Fabric resident remote ports.
3106 # Default value of this parameter is 1.
3108 static int lpfc_restrict_login = 1;
3109 module_param(lpfc_restrict_login, int, S_IRUGO);
3110 MODULE_PARM_DESC(lpfc_restrict_login,
3111 "Restrict virtual ports login to remote initiators.");
3112 lpfc_vport_param_show(restrict_login);
3115 * lpfc_restrict_login_init - Set the vport restrict login flag
3116 * @vport: lpfc vport structure pointer.
3117 * @val: contains the restrict login value.
3120 * If val is not in a valid range then log a kernel error message and set
3121 * the vport restrict login to one.
3122 * If the port type is physical clear the restrict login flag and return.
3123 * Else set the restrict login flag to val.
3126 * zero if val is in range
3127 * -EINVAL val out of range
3130 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
3132 if (val < 0 || val > 1) {
3133 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3134 "0422 lpfc_restrict_login attribute cannot "
3135 "be set to %d, allowed range is [0, 1]\n",
3137 vport->cfg_restrict_login = 1;
3140 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3141 vport->cfg_restrict_login = 0;
3144 vport->cfg_restrict_login = val;
3149 * lpfc_restrict_login_set - Set the vport restrict login flag
3150 * @vport: lpfc vport structure pointer.
3151 * @val: contains the restrict login value.
3154 * If val is not in a valid range then log a kernel error message and set
3155 * the vport restrict login to one.
3156 * If the port type is physical and the val is not zero log a kernel
3157 * error message, clear the restrict login flag and return zero.
3158 * Else set the restrict login flag to val.
3161 * zero if val is in range
3162 * -EINVAL val out of range
3165 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
3167 if (val < 0 || val > 1) {
3168 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3169 "0425 lpfc_restrict_login attribute cannot "
3170 "be set to %d, allowed range is [0, 1]\n",
3172 vport->cfg_restrict_login = 1;
3175 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
3176 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3177 "0468 lpfc_restrict_login must be 0 for "
3178 "Physical ports.\n");
3179 vport->cfg_restrict_login = 0;
3182 vport->cfg_restrict_login = val;
3185 lpfc_vport_param_store(restrict_login);
3186 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
3187 lpfc_restrict_login_show, lpfc_restrict_login_store);
3190 # Some disk devices have a "select ID" or "select Target" capability.
3191 # From a protocol standpoint "select ID" usually means select the
3192 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
3193 # annex" which contains a table that maps a "select ID" (a number
3194 # between 0 and 7F) to an ALPA. By default, for compatibility with
3195 # older drivers, the lpfc driver scans this table from low ALPA to high
3198 # Turning on the scan-down variable (on = 1, off = 0) will
3199 # cause the lpfc driver to use an inverted table, effectively
3200 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
3202 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
3203 # and will not work across a fabric. Also this parameter will take
3204 # effect only in the case when ALPA map is not available.)
3206 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
3207 "Start scanning for devices from highest ALPA to lowest");
3210 # lpfc_topology: link topology for init link
3211 # 0x0 = attempt loop mode then point-to-point
3212 # 0x01 = internal loopback mode
3213 # 0x02 = attempt point-to-point mode only
3214 # 0x04 = attempt loop mode only
3215 # 0x06 = attempt point-to-point mode then loop
3216 # Set point-to-point mode if you want to run as an N_Port.
3217 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
3218 # Default value is 0.
3222 * lpfc_topology_set - Set the adapters topology field
3223 * @phba: lpfc_hba pointer.
3224 * @val: topology value.
3227 * If val is in a valid range then set the adapter's topology field and
3228 * issue a lip; if the lip fails reset the topology to the old value.
3230 * If the value is not in range log a kernel error message and return an error.
3233 * zero if val is in range and lip okay
3234 * non-zero return value from lpfc_issue_lip()
3235 * -EINVAL val out of range
3238 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
3239 const char *buf, size_t count)
3241 struct Scsi_Host *shost = class_to_shost(dev);
3242 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3243 struct lpfc_hba *phba = vport->phba;
3246 const char *val_buf = buf;
3250 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
3252 val_buf = &buf[strlen("nolip ")];
3255 if (!isdigit(val_buf[0]))
3257 if (sscanf(val_buf, "%i", &val) != 1)
3260 if (val >= 0 && val <= 6) {
3261 prev_val = phba->cfg_topology;
3262 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
3264 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3265 "3113 Loop mode not supported at speed %d\n",
3269 if (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
3271 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3272 "3114 Loop mode not supported\n");
3275 phba->cfg_topology = 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 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN);
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 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb))) {
3718 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3719 "2879 lpfc_link_speed attribute cannot be set "
3720 "to %d. Speed is not supported by this port.\n",
3724 if (val == LPFC_USER_LINK_SPEED_16G &&
3725 phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3726 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3727 "3112 lpfc_link_speed attribute cannot be set "
3728 "to %d. Speed is not supported in loop mode.\n",
3732 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3733 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3734 prev_val = phba->cfg_link_speed;
3735 phba->cfg_link_speed = val;
3739 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3741 phba->cfg_link_speed = prev_val;
3746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3747 "0469 lpfc_link_speed attribute cannot be set to %d, "
3748 "allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val);
3752 static int lpfc_link_speed = 0;
3753 module_param(lpfc_link_speed, int, S_IRUGO);
3754 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
3755 lpfc_param_show(link_speed)
3758 * lpfc_link_speed_init - Set the adapters link speed
3759 * @phba: lpfc_hba pointer.
3760 * @val: link speed value.
3763 * If val is in a valid range then set the adapter's link speed field.
3766 * If the value is not in range log a kernel error message, clear the link
3767 * speed and return an error.
3770 * zero if val saved.
3771 * -EINVAL val out of range
3774 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
3776 if (val == LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
3777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3778 "3111 lpfc_link_speed of %d cannot "
3779 "support loop mode, setting topology to default.\n",
3781 phba->cfg_topology = 0;
3783 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3784 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3785 phba->cfg_link_speed = val;
3788 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3789 "0405 lpfc_link_speed attribute cannot "
3790 "be set to %d, allowed values are "
3791 "["LPFC_LINK_SPEED_STRING"]\n", val);
3792 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
3796 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
3797 lpfc_link_speed_show, lpfc_link_speed_store);
3800 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
3801 # 0 = aer disabled or not supported
3802 # 1 = aer supported and enabled (default)
3803 # Value range is [0,1]. Default value is 1.
3807 * lpfc_aer_support_store - Set the adapter for aer support
3809 * @dev: class device that is converted into a Scsi_host.
3810 * @attr: device attribute, not used.
3811 * @buf: containing enable or disable aer flag.
3812 * @count: unused variable.
3815 * If the val is 1 and currently the device's AER capability was not
3816 * enabled, invoke the kernel's enable AER helper routine, trying to
3817 * enable the device's AER capability. If the helper routine enabling
3818 * AER returns success, update the device's cfg_aer_support flag to
3819 * indicate AER is supported by the device; otherwise, if the device
3820 * AER capability is already enabled to support AER, then do nothing.
3822 * If the val is 0 and currently the device's AER support was enabled,
3823 * invoke the kernel's disable AER helper routine. After that, update
3824 * the device's cfg_aer_support flag to indicate AER is not supported
3825 * by the device; otherwise, if the device AER capability is already
3826 * disabled from supporting AER, then do nothing.
3829 * length of the buf on success if val is in range the intended mode
3831 * -EINVAL if val out of range or intended mode is not supported.
3834 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
3835 const char *buf, size_t count)
3837 struct Scsi_Host *shost = class_to_shost(dev);
3838 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
3839 struct lpfc_hba *phba = vport->phba;
3840 int val = 0, rc = -EINVAL;
3842 if (!isdigit(buf[0]))
3844 if (sscanf(buf, "%i", &val) != 1)
3849 if (phba->hba_flag & HBA_AER_ENABLED) {
3850 rc = pci_disable_pcie_error_reporting(phba->pcidev);
3852 spin_lock_irq(&phba->hbalock);
3853 phba->hba_flag &= ~HBA_AER_ENABLED;
3854 spin_unlock_irq(&phba->hbalock);
3855 phba->cfg_aer_support = 0;
3860 phba->cfg_aer_support = 0;
3865 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
3866 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3868 spin_lock_irq(&phba->hbalock);
3869 phba->hba_flag |= HBA_AER_ENABLED;
3870 spin_unlock_irq(&phba->hbalock);
3871 phba->cfg_aer_support = 1;
3876 phba->cfg_aer_support = 1;
3887 static int lpfc_aer_support = 1;
3888 module_param(lpfc_aer_support, int, S_IRUGO);
3889 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
3890 lpfc_param_show(aer_support)
3893 * lpfc_aer_support_init - Set the initial adapters aer support flag
3894 * @phba: lpfc_hba pointer.
3895 * @val: enable aer or disable aer flag.
3898 * If val is in a valid range [0,1], then set the adapter's initial
3899 * cfg_aer_support field. It will be up to the driver's probe_one
3900 * routine to determine whether the device's AER support can be set
3904 * If the value is not in range log a kernel error message, and
3905 * choose the default value of setting AER support and return.
3908 * zero if val saved.
3909 * -EINVAL val out of range
3912 lpfc_aer_support_init(struct lpfc_hba *phba, int val)
3914 if (val == 0 || val == 1) {
3915 phba->cfg_aer_support = val;
3918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3919 "2712 lpfc_aer_support attribute value %d out "
3920 "of range, allowed values are 0|1, setting it "
3921 "to default value of 1\n", val);
3922 /* By default, try to enable AER on a device */
3923 phba->cfg_aer_support = 1;
3927 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
3928 lpfc_aer_support_show, lpfc_aer_support_store);
3931 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
3932 * @dev: class device that is converted into a Scsi_host.
3933 * @attr: device attribute, not used.
3934 * @buf: containing flag 1 for aer cleanup state.
3935 * @count: unused variable.
3938 * If the @buf contains 1 and the device currently has the AER support
3939 * enabled, then invokes the kernel AER helper routine
3940 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
3941 * error status register.
3946 * -EINVAL if the buf does not contain the 1 or the device is not currently
3947 * enabled with the AER support.
3950 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
3951 const char *buf, size_t count)
3953 struct Scsi_Host *shost = class_to_shost(dev);
3954 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3955 struct lpfc_hba *phba = vport->phba;
3958 if (!isdigit(buf[0]))
3960 if (sscanf(buf, "%i", &val) != 1)
3965 if (phba->hba_flag & HBA_AER_ENABLED)
3966 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
3974 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
3975 lpfc_aer_cleanup_state);
3978 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
3980 * @dev: class device that is converted into a Scsi_host.
3981 * @attr: device attribute, not used.
3982 * @buf: containing the string the number of vfs to be enabled.
3983 * @count: unused variable.
3986 * When this api is called either through user sysfs, the driver shall
3987 * try to enable or disable SR-IOV virtual functions according to the
3990 * If zero virtual function has been enabled to the physical function,
3991 * the driver shall invoke the pci enable virtual function api trying
3992 * to enable the virtual functions. If the nr_vfn provided is greater
3993 * than the maximum supported, the maximum virtual function number will
3994 * be used for invoking the api; otherwise, the nr_vfn provided shall
3995 * be used for invoking the api. If the api call returned success, the
3996 * actual number of virtual functions enabled will be set to the driver
3997 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
3998 * cfg_sriov_nr_virtfn remains zero.
4000 * If none-zero virtual functions have already been enabled to the
4001 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
4002 * -EINVAL will be returned and the driver does nothing;
4004 * If the nr_vfn provided is zero and none-zero virtual functions have
4005 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
4006 * disabling virtual function api shall be invoded to disable all the
4007 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
4008 * zero. Otherwise, if zero virtual function has been enabled, do
4012 * length of the buf on success if val is in range the intended mode
4014 * -EINVAL if val out of range or intended mode is not supported.
4017 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
4018 const char *buf, size_t count)
4020 struct Scsi_Host *shost = class_to_shost(dev);
4021 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4022 struct lpfc_hba *phba = vport->phba;
4023 struct pci_dev *pdev = phba->pcidev;
4024 int val = 0, rc = -EINVAL;
4026 /* Sanity check on user data */
4027 if (!isdigit(buf[0]))
4029 if (sscanf(buf, "%i", &val) != 1)
4034 /* Request disabling virtual functions */
4036 if (phba->cfg_sriov_nr_virtfn > 0) {
4037 pci_disable_sriov(pdev);
4038 phba->cfg_sriov_nr_virtfn = 0;
4043 /* Request enabling virtual functions */
4044 if (phba->cfg_sriov_nr_virtfn > 0) {
4045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4046 "3018 There are %d virtual functions "
4047 "enabled on physical function.\n",
4048 phba->cfg_sriov_nr_virtfn);
4052 if (val <= LPFC_MAX_VFN_PER_PFN)
4053 phba->cfg_sriov_nr_virtfn = val;
4055 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4056 "3019 Enabling %d virtual functions is not "
4061 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
4063 phba->cfg_sriov_nr_virtfn = 0;
4071 static int lpfc_sriov_nr_virtfn = LPFC_DEF_VFN_PER_PFN;
4072 module_param(lpfc_sriov_nr_virtfn, int, S_IRUGO|S_IWUSR);
4073 MODULE_PARM_DESC(lpfc_sriov_nr_virtfn, "Enable PCIe device SR-IOV virtual fn");
4074 lpfc_param_show(sriov_nr_virtfn)
4077 * lpfc_sriov_nr_virtfn_init - Set the initial sr-iov virtual function enable
4078 * @phba: lpfc_hba pointer.
4079 * @val: link speed value.
4082 * If val is in a valid range [0,255], then set the adapter's initial
4083 * cfg_sriov_nr_virtfn field. If it's greater than the maximum, the maximum
4084 * number shall be used instead. It will be up to the driver's probe_one
4085 * routine to determine whether the device's SR-IOV is supported or not.
4088 * zero if val saved.
4089 * -EINVAL val out of range
4092 lpfc_sriov_nr_virtfn_init(struct lpfc_hba *phba, int val)
4094 if (val >= 0 && val <= LPFC_MAX_VFN_PER_PFN) {
4095 phba->cfg_sriov_nr_virtfn = val;
4099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4100 "3017 Enabling %d virtual functions is not "
4104 static DEVICE_ATTR(lpfc_sriov_nr_virtfn, S_IRUGO | S_IWUSR,
4105 lpfc_sriov_nr_virtfn_show, lpfc_sriov_nr_virtfn_store);
4108 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade
4110 * @dev: class device that is converted into a Scsi_host.
4111 * @attr: device attribute, not used.
4112 * @buf: containing the string the number of vfs to be enabled.
4113 * @count: unused variable.
4118 * length of the buf on success if val is in range the intended mode
4120 * -EINVAL if val out of range or intended mode is not supported.
4123 lpfc_request_firmware_upgrade_store(struct device *dev,
4124 struct device_attribute *attr,
4125 const char *buf, size_t count)
4127 struct Scsi_Host *shost = class_to_shost(dev);
4128 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4129 struct lpfc_hba *phba = vport->phba;
4130 int val = 0, rc = -EINVAL;
4132 /* Sanity check on user data */
4133 if (!isdigit(buf[0]))
4135 if (sscanf(buf, "%i", &val) != 1)
4140 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE);
4148 static int lpfc_req_fw_upgrade;
4149 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR);
4150 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade");
4151 lpfc_param_show(request_firmware_upgrade)
4154 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade
4155 * @phba: lpfc_hba pointer.
4159 * Set the initial Linux generic firmware upgrade enable or disable flag.
4162 * zero if val saved.
4163 * -EINVAL val out of range
4166 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val)
4168 if (val >= 0 && val <= 1) {
4169 phba->cfg_request_firmware_upgrade = val;
4174 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR,
4175 lpfc_request_firmware_upgrade_show,
4176 lpfc_request_firmware_upgrade_store);
4179 * lpfc_fcp_imax_store
4181 * @dev: class device that is converted into a Scsi_host.
4182 * @attr: device attribute, not used.
4183 * @buf: string with the number of fast-path FCP interrupts per second.
4184 * @count: unused variable.
4187 * If val is in a valid range [636,651042], then set the adapter's
4188 * maximum number of fast-path FCP interrupts per second.
4191 * length of the buf on success if val is in range the intended mode
4193 * -EINVAL if val out of range or intended mode is not supported.
4196 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
4197 const char *buf, size_t count)
4199 struct Scsi_Host *shost = class_to_shost(dev);
4200 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4201 struct lpfc_hba *phba = vport->phba;
4204 /* fcp_imax is only valid for SLI4 */
4205 if (phba->sli_rev != LPFC_SLI_REV4)
4208 /* Sanity check on user data */
4209 if (!isdigit(buf[0]))
4211 if (sscanf(buf, "%i", &val) != 1)
4215 * Value range for the HBA is [5000,5000000]
4216 * The value for each EQ depends on how many EQs are configured.
4218 if (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)
4221 phba->cfg_fcp_imax = (uint32_t)val;
4222 for (i = 0; i < phba->cfg_fcp_io_channel; i += LPFC_MAX_EQ_DELAY)
4223 lpfc_modify_fcp_eq_delay(phba, i);
4229 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
4232 # Value range is [5,000 to 5,000,000]. Default value is 50,000.
4234 static int lpfc_fcp_imax = LPFC_DEF_IMAX;
4235 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
4236 MODULE_PARM_DESC(lpfc_fcp_imax,
4237 "Set the maximum number of FCP interrupts per second per HBA");
4238 lpfc_param_show(fcp_imax)
4241 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable
4242 * @phba: lpfc_hba pointer.
4243 * @val: link speed value.
4246 * If val is in a valid range [636,651042], then initialize the adapter's
4247 * maximum number of fast-path FCP interrupts per second.
4250 * zero if val saved.
4251 * -EINVAL val out of range
4254 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
4256 if (phba->sli_rev != LPFC_SLI_REV4) {
4257 phba->cfg_fcp_imax = 0;
4261 if (val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) {
4262 phba->cfg_fcp_imax = val;
4266 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4267 "3016 fcp_imax: %d out of range, using default\n", val);
4268 phba->cfg_fcp_imax = LPFC_DEF_IMAX;
4273 static DEVICE_ATTR(lpfc_fcp_imax, S_IRUGO | S_IWUSR,
4274 lpfc_fcp_imax_show, lpfc_fcp_imax_store);
4277 * lpfc_state_show - Display current driver CPU affinity
4278 * @dev: class converted to a Scsi_host structure.
4279 * @attr: device attribute, not used.
4280 * @buf: on return contains text describing the state of the link.
4282 * Returns: size of formatted string.
4285 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr,
4288 struct Scsi_Host *shost = class_to_shost(dev);
4289 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4290 struct lpfc_hba *phba = vport->phba;
4291 struct lpfc_vector_map_info *cpup;
4294 if ((phba->sli_rev != LPFC_SLI_REV4) ||
4295 (phba->intr_type != MSIX))
4298 switch (phba->cfg_fcp_cpu_map) {
4300 len += snprintf(buf + len, PAGE_SIZE-len,
4301 "fcp_cpu_map: No mapping (%d)\n",
4302 phba->cfg_fcp_cpu_map);
4305 len += snprintf(buf + len, PAGE_SIZE-len,
4306 "fcp_cpu_map: HBA centric mapping (%d): "
4308 phba->cfg_fcp_cpu_map,
4309 phba->sli4_hba.num_online_cpu);
4312 len += snprintf(buf + len, PAGE_SIZE-len,
4313 "fcp_cpu_map: Driver centric mapping (%d): "
4315 phba->cfg_fcp_cpu_map,
4316 phba->sli4_hba.num_online_cpu);
4320 while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_present_cpu) {
4321 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
4323 /* margin should fit in this and the truncated message */
4324 if (cpup->irq == LPFC_VECTOR_MAP_EMPTY)
4325 len += snprintf(buf + len, PAGE_SIZE-len,
4326 "CPU %02d io_chan %02d "
4327 "physid %d coreid %d\n",
4328 phba->sli4_hba.curr_disp_cpu,
4329 cpup->channel_id, cpup->phys_id,
4332 len += snprintf(buf + len, PAGE_SIZE-len,
4333 "CPU %02d io_chan %02d "
4334 "physid %d coreid %d IRQ %d\n",
4335 phba->sli4_hba.curr_disp_cpu,
4336 cpup->channel_id, cpup->phys_id,
4337 cpup->core_id, cpup->irq);
4339 phba->sli4_hba.curr_disp_cpu++;
4341 /* display max number of CPUs keeping some margin */
4342 if (phba->sli4_hba.curr_disp_cpu <
4343 phba->sli4_hba.num_present_cpu &&
4344 (len >= (PAGE_SIZE - 64))) {
4345 len += snprintf(buf + len, PAGE_SIZE-len, "more...\n");
4350 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_present_cpu)
4351 phba->sli4_hba.curr_disp_cpu = 0;
4357 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors
4358 * @dev: class device that is converted into a Scsi_host.
4359 * @attr: device attribute, not used.
4360 * @buf: one or more lpfc_polling_flags values.
4364 * -EINVAL - Not implemented yet.
4367 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr,
4368 const char *buf, size_t count)
4370 int status = -EINVAL;
4375 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors
4378 # Value range is [0 to 2]. Default value is LPFC_DRIVER_CPU_MAP (2).
4379 # 0 - Do not affinitze IRQ vectors
4380 # 1 - Affintize HBA vectors with respect to each HBA
4381 # (start with CPU0 for each HBA)
4382 # 2 - Affintize HBA vectors with respect to the entire driver
4383 # (round robin thru all CPUs across all HBAs)
4385 static int lpfc_fcp_cpu_map = LPFC_DRIVER_CPU_MAP;
4386 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR);
4387 MODULE_PARM_DESC(lpfc_fcp_cpu_map,
4388 "Defines how to map CPUs to IRQ vectors per HBA");
4391 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable
4392 * @phba: lpfc_hba pointer.
4393 * @val: link speed value.
4396 * If val is in a valid range [0-2], then affinitze the adapter's
4400 * zero if val saved.
4401 * -EINVAL val out of range
4404 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val)
4406 if (phba->sli_rev != LPFC_SLI_REV4) {
4407 phba->cfg_fcp_cpu_map = 0;
4411 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) {
4412 phba->cfg_fcp_cpu_map = val;
4416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4417 "3326 fcp_cpu_map: %d out of range, using default\n",
4419 phba->cfg_fcp_cpu_map = LPFC_DRIVER_CPU_MAP;
4424 static DEVICE_ATTR(lpfc_fcp_cpu_map, S_IRUGO | S_IWUSR,
4425 lpfc_fcp_cpu_map_show, lpfc_fcp_cpu_map_store);
4428 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
4429 # Value range is [2,3]. Default value is 3.
4431 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
4432 "Select Fibre Channel class of service for FCP sequences");
4435 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
4436 # is [0,1]. Default value is 0.
4438 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
4439 "Use ADISC on rediscovery to authenticate FCP devices");
4442 # lpfc_first_burst_size: First burst size to use on the NPorts
4443 # that support first burst.
4444 # Value range is [0,65536]. Default value is 0.
4446 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536,
4447 "First burst size for Targets that support first burst");
4450 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
4451 # depth. Default value is 0. When the value of this parameter is zero the
4452 # SCSI command completion time is not used for controlling I/O queue depth. When
4453 # the parameter is set to a non-zero value, the I/O queue depth is controlled
4454 # to limit the I/O completion time to the parameter value.
4455 # The value is set in milliseconds.
4457 static int lpfc_max_scsicmpl_time;
4458 module_param(lpfc_max_scsicmpl_time, int, S_IRUGO);
4459 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
4460 "Use command completion time to control queue depth");
4461 lpfc_vport_param_show(max_scsicmpl_time);
4462 lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
4464 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
4466 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4467 struct lpfc_nodelist *ndlp, *next_ndlp;
4469 if (val == vport->cfg_max_scsicmpl_time)
4471 if ((val < 0) || (val > 60000))
4473 vport->cfg_max_scsicmpl_time = val;
4475 spin_lock_irq(shost->host_lock);
4476 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4477 if (!NLP_CHK_NODE_ACT(ndlp))
4479 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4481 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4483 spin_unlock_irq(shost->host_lock);
4486 lpfc_vport_param_store(max_scsicmpl_time);
4487 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
4488 lpfc_max_scsicmpl_time_show,
4489 lpfc_max_scsicmpl_time_store);
4492 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
4493 # range is [0,1]. Default value is 0.
4495 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
4498 # lpfc_fcp_io_sched: Determine scheduling algrithmn for issuing FCP cmds
4499 # range is [0,1]. Default value is 0.
4500 # For [0], FCP commands are issued to Work Queues ina round robin fashion.
4501 # For [1], FCP commands are issued to a Work Queue associated with the
4503 # It would be set to 1 by the driver if it's able to set up cpu affinity
4504 # for FCP I/Os through Work Queue associated with the current CPU. Otherwise,
4505 # roundrobin scheduling of FCP I/Os through WQs will be used.
4507 LPFC_ATTR_RW(fcp_io_sched, 0, 0, 1, "Determine scheduling algorithm for "
4508 "issuing commands [0] - Round Robin, [1] - Current CPU");
4511 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior
4512 # range is [0,1]. Default value is 0.
4513 # For [0], bus reset issues target reset to ALL devices
4514 # For [1], bus reset issues target reset to non-FCP2 devices
4516 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for "
4517 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset");
4521 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
4522 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
4523 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
4524 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
4525 # cr_delay is set to 0.
4527 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
4528 "interrupt response is generated");
4530 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
4531 "interrupt response is generated");
4534 # lpfc_multi_ring_support: Determines how many rings to spread available
4535 # cmd/rsp IOCB entries across.
4536 # Value range is [1,2]. Default value is 1.
4538 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
4539 "SLI rings to spread IOCB entries across");
4542 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
4543 # identifies what rctl value to configure the additional ring for.
4544 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
4546 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
4547 255, "Identifies RCTL for additional ring configuration");
4550 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
4551 # identifies what type value to configure the additional ring for.
4552 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
4554 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
4555 255, "Identifies TYPE for additional ring configuration");
4558 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN
4559 # 0 = SmartSAN functionality disabled (default)
4560 # 1 = SmartSAN functionality enabled
4561 # This parameter will override the value of lpfc_fdmi_on module parameter.
4562 # Value range is [0,1]. Default value is 0.
4564 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality");
4567 # lpfc_fdmi_on: Controls FDMI support.
4568 # 0 No FDMI support (default)
4569 # 1 Traditional FDMI support
4570 # Traditional FDMI support means the driver will assume FDMI-2 support;
4571 # however, if that fails, it will fallback to FDMI-1.
4572 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on.
4573 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of
4575 # Value range [0,1]. Default value is 0.
4577 LPFC_ATTR_R(fdmi_on, 0, 0, 1, "Enable FDMI support");
4580 # Specifies the maximum number of ELS cmds we can have outstanding (for
4581 # discovery). Value range is [1,64]. Default value = 32.
4583 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
4584 "during discovery");
4587 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that
4588 # will be scanned by the SCSI midlayer when sequential scanning is
4589 # used; and is also the highest LUN ID allowed when the SCSI midlayer
4590 # parses REPORT_LUN responses. The lpfc driver has no LUN count or
4591 # LUN ID limit, but the SCSI midlayer requires this field for the uses
4592 # above. The lpfc driver limits the default value to 255 for two reasons.
4593 # As it bounds the sequential scan loop, scanning for thousands of luns
4594 # on a target can take minutes of wall clock time. Additionally,
4595 # there are FC targets, such as JBODs, that only recognize 8-bits of
4596 # LUN ID. When they receive a value greater than 8 bits, they chop off
4597 # the high order bits. In other words, they see LUN IDs 0, 256, 512,
4598 # and so on all as LUN ID 0. This causes the linux kernel, which sees
4599 # valid responses at each of the LUN IDs, to believe there are multiple
4600 # devices present, when in fact, there is only 1.
4601 # A customer that is aware of their target behaviors, and the results as
4602 # indicated above, is welcome to increase the lpfc_max_luns value.
4603 # As mentioned, this value is not used by the lpfc driver, only the
4605 # Value range is [0,65535]. Default value is 255.
4606 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
4608 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID");
4611 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
4612 # Value range is [1,255], default value is 10.
4614 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
4615 "Milliseconds driver will wait between polling FCP ring");
4618 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands
4619 # to complete in seconds. Value range is [5,180], default value is 60.
4621 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180,
4622 "Maximum time to wait for task management commands to complete");
4624 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
4625 # support this feature
4628 # 2 = MSI-X enabled (default)
4629 # Value range is [0,2]. Default value is 2.
4631 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
4632 "MSI-X (2), if possible");
4635 # lpfc_fcp_io_channel: Set the number of FCP EQ/CQ/WQ IO channels
4637 # Value range is [1,7]. Default value is 4.
4639 LPFC_ATTR_R(fcp_io_channel, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
4640 LPFC_FCP_IO_CHAN_MAX,
4641 "Set the number of FCP I/O channels");
4644 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
4645 # 0 = HBA resets disabled
4646 # 1 = HBA resets enabled (default)
4647 # Value range is [0,1]. Default value is 1.
4649 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
4652 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
4653 # 0 = HBA Heartbeat disabled
4654 # 1 = HBA Heartbeat enabled (default)
4655 # Value range is [0,1]. Default value is 1.
4657 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
4660 # lpfc_EnableXLane: Enable Express Lane Feature
4661 # 0x0 Express Lane Feature disabled
4662 # 0x1 Express Lane Feature enabled
4663 # Value range is [0,1]. Default value is 0.
4665 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
4668 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature
4669 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits)
4670 # Value range is [0x0,0x7f]. Default value is 0
4672 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
4675 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
4676 # 0 = BlockGuard disabled (default)
4677 # 1 = BlockGuard enabled
4678 # Value range is [0,1]. Default value is 0.
4680 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
4683 # lpfc_fcp_look_ahead: Look ahead for completions in FCP start routine
4684 # 0 = disabled (default)
4686 # Value range is [0,1]. Default value is 0.
4688 # This feature in under investigation and may be supported in the future.
4690 unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF;
4694 # - Bit mask of host protection capabilities used to register with the
4696 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
4697 # - Allows you to ultimately specify which profiles to use
4698 # - Default will result in registering capabilities for all profiles.
4699 # - SHOST_DIF_TYPE1_PROTECTION 1
4700 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection
4701 # - SHOST_DIX_TYPE0_PROTECTION 8
4702 # HBA supports DIX Type 0: Host to HBA protection only
4703 # - SHOST_DIX_TYPE1_PROTECTION 16
4704 # HBA supports DIX Type 1: Host to HBA Type 1 protection
4707 unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION |
4708 SHOST_DIX_TYPE0_PROTECTION |
4709 SHOST_DIX_TYPE1_PROTECTION;
4711 module_param(lpfc_prot_mask, uint, S_IRUGO);
4712 MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
4715 # lpfc_prot_guard: i
4716 # - Bit mask of protection guard types to register with the SCSI mid-layer
4717 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum
4718 # - Allows you to ultimately specify which profiles to use
4719 # - Default will result in registering capabilities for all guard types
4722 unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
4723 module_param(lpfc_prot_guard, byte, S_IRUGO);
4724 MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
4727 * Delay initial NPort discovery when Clean Address bit is cleared in
4728 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
4729 * This parameter can have value 0 or 1.
4730 * When this parameter is set to 0, no delay is added to the initial
4732 * When this parameter is set to non-zero value, initial Nport discovery is
4733 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
4734 * accept and FCID/Fabric name/Fabric portname is changed.
4735 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
4736 * when Clean Address bit is cleared in FLOGI/FDISC
4737 * accept and FCID/Fabric name/Fabric portname is changed.
4738 * Default value is 0.
4740 LPFC_ATTR(delay_discovery, 0, 0, 1,
4741 "Delay NPort discovery when Clean Address bit is cleared.");
4744 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
4745 * This value can be set to values between 64 and 4096. The default value is
4746 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
4747 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
4748 * Because of the additional overhead involved in setting up T10-DIF,
4749 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4
4750 * and will be limited to 512 if BlockGuard is enabled under SLI3.
4752 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
4753 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
4756 * This parameter will be depricated, the driver cannot limit the
4757 * protection data s/g list.
4759 LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT,
4760 LPFC_DEFAULT_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT,
4761 "Max Protection Scatter Gather Segment Count");
4764 * lpfc_enable_mds_diags: Enable MDS Diagnostics
4765 * 0 = MDS Diagnostics disabled (default)
4766 * 1 = MDS Diagnostics enabled
4767 * Value range is [0,1]. Default value is 0.
4769 LPFC_ATTR_R(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics");
4771 struct device_attribute *lpfc_hba_attrs[] = {
4773 &dev_attr_bg_guard_err,
4774 &dev_attr_bg_apptag_err,
4775 &dev_attr_bg_reftag_err,
4777 &dev_attr_serialnum,
4778 &dev_attr_modeldesc,
4779 &dev_attr_modelname,
4780 &dev_attr_programtype,
4784 &dev_attr_option_rom_version,
4785 &dev_attr_link_state,
4786 &dev_attr_num_discovered_ports,
4787 &dev_attr_menlo_mgmt_mode,
4788 &dev_attr_lpfc_drvr_version,
4789 &dev_attr_lpfc_enable_fip,
4790 &dev_attr_lpfc_temp_sensor,
4791 &dev_attr_lpfc_log_verbose,
4792 &dev_attr_lpfc_lun_queue_depth,
4793 &dev_attr_lpfc_tgt_queue_depth,
4794 &dev_attr_lpfc_hba_queue_depth,
4795 &dev_attr_lpfc_peer_port_login,
4796 &dev_attr_lpfc_nodev_tmo,
4797 &dev_attr_lpfc_devloss_tmo,
4798 &dev_attr_lpfc_fcp_class,
4799 &dev_attr_lpfc_use_adisc,
4800 &dev_attr_lpfc_first_burst_size,
4801 &dev_attr_lpfc_ack0,
4802 &dev_attr_lpfc_topology,
4803 &dev_attr_lpfc_scan_down,
4804 &dev_attr_lpfc_link_speed,
4805 &dev_attr_lpfc_fcp_io_sched,
4806 &dev_attr_lpfc_fcp2_no_tgt_reset,
4807 &dev_attr_lpfc_cr_delay,
4808 &dev_attr_lpfc_cr_count,
4809 &dev_attr_lpfc_multi_ring_support,
4810 &dev_attr_lpfc_multi_ring_rctl,
4811 &dev_attr_lpfc_multi_ring_type,
4812 &dev_attr_lpfc_fdmi_on,
4813 &dev_attr_lpfc_enable_SmartSAN,
4814 &dev_attr_lpfc_max_luns,
4815 &dev_attr_lpfc_enable_npiv,
4816 &dev_attr_lpfc_fcf_failover_policy,
4817 &dev_attr_lpfc_enable_rrq,
4818 &dev_attr_nport_evt_cnt,
4819 &dev_attr_board_mode,
4826 &dev_attr_npiv_info,
4827 &dev_attr_issue_reset,
4828 &dev_attr_lpfc_poll,
4829 &dev_attr_lpfc_poll_tmo,
4830 &dev_attr_lpfc_task_mgmt_tmo,
4831 &dev_attr_lpfc_use_msi,
4832 &dev_attr_lpfc_fcp_imax,
4833 &dev_attr_lpfc_fcp_cpu_map,
4834 &dev_attr_lpfc_fcp_io_channel,
4835 &dev_attr_lpfc_enable_bg,
4836 &dev_attr_lpfc_soft_wwnn,
4837 &dev_attr_lpfc_soft_wwpn,
4838 &dev_attr_lpfc_soft_wwn_enable,
4839 &dev_attr_lpfc_enable_hba_reset,
4840 &dev_attr_lpfc_enable_hba_heartbeat,
4841 &dev_attr_lpfc_EnableXLane,
4842 &dev_attr_lpfc_XLanePriority,
4843 &dev_attr_lpfc_xlane_lun,
4844 &dev_attr_lpfc_xlane_tgt,
4845 &dev_attr_lpfc_xlane_vpt,
4846 &dev_attr_lpfc_xlane_lun_state,
4847 &dev_attr_lpfc_xlane_lun_status,
4848 &dev_attr_lpfc_xlane_priority,
4849 &dev_attr_lpfc_sg_seg_cnt,
4850 &dev_attr_lpfc_max_scsicmpl_time,
4851 &dev_attr_lpfc_stat_data_ctrl,
4852 &dev_attr_lpfc_prot_sg_seg_cnt,
4853 &dev_attr_lpfc_aer_support,
4854 &dev_attr_lpfc_aer_state_cleanup,
4855 &dev_attr_lpfc_sriov_nr_virtfn,
4856 &dev_attr_lpfc_req_fw_upgrade,
4857 &dev_attr_lpfc_suppress_link_up,
4858 &dev_attr_lpfc_iocb_cnt,
4861 &dev_attr_txcmplq_hw,
4862 &dev_attr_lpfc_fips_level,
4863 &dev_attr_lpfc_fips_rev,
4865 &dev_attr_lpfc_sriov_hw_max_virtfn,
4867 &dev_attr_lpfc_xlane_supported,
4868 &dev_attr_lpfc_enable_mds_diags,
4872 struct device_attribute *lpfc_vport_attrs[] = {
4874 &dev_attr_link_state,
4875 &dev_attr_num_discovered_ports,
4876 &dev_attr_lpfc_drvr_version,
4877 &dev_attr_lpfc_log_verbose,
4878 &dev_attr_lpfc_lun_queue_depth,
4879 &dev_attr_lpfc_tgt_queue_depth,
4880 &dev_attr_lpfc_nodev_tmo,
4881 &dev_attr_lpfc_devloss_tmo,
4882 &dev_attr_lpfc_hba_queue_depth,
4883 &dev_attr_lpfc_peer_port_login,
4884 &dev_attr_lpfc_restrict_login,
4885 &dev_attr_lpfc_fcp_class,
4886 &dev_attr_lpfc_use_adisc,
4887 &dev_attr_lpfc_first_burst_size,
4888 &dev_attr_lpfc_max_luns,
4889 &dev_attr_nport_evt_cnt,
4890 &dev_attr_npiv_info,
4891 &dev_attr_lpfc_enable_da_id,
4892 &dev_attr_lpfc_max_scsicmpl_time,
4893 &dev_attr_lpfc_stat_data_ctrl,
4894 &dev_attr_lpfc_static_vport,
4895 &dev_attr_lpfc_fips_level,
4896 &dev_attr_lpfc_fips_rev,
4901 * sysfs_ctlreg_write - Write method for writing to ctlreg
4902 * @filp: open sysfs file
4903 * @kobj: kernel kobject that contains the kernel class device.
4904 * @bin_attr: kernel attributes passed to us.
4905 * @buf: contains the data to be written to the adapter IOREG space.
4906 * @off: offset into buffer to beginning of data.
4907 * @count: bytes to transfer.
4910 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
4911 * Uses the adapter io control registers to send buf contents to the adapter.
4914 * -ERANGE off and count combo out of range
4915 * -EINVAL off, count or buff address invalid
4916 * -EPERM adapter is offline
4917 * value of count, buf contents written
4920 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
4921 struct bin_attribute *bin_attr,
4922 char *buf, loff_t off, size_t count)
4925 struct device *dev = container_of(kobj, struct device, kobj);
4926 struct Scsi_Host *shost = class_to_shost(dev);
4927 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4928 struct lpfc_hba *phba = vport->phba;
4930 if (phba->sli_rev >= LPFC_SLI_REV4)
4933 if ((off + count) > FF_REG_AREA_SIZE)
4936 if (count <= LPFC_REG_WRITE_KEY_SIZE)
4939 if (off % 4 || count % 4 || (unsigned long)buf % 4)
4942 /* This is to protect HBA registers from accidental writes. */
4943 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE))
4946 if (!(vport->fc_flag & FC_OFFLINE_MODE))
4949 spin_lock_irq(&phba->hbalock);
4950 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE;
4951 buf_off += sizeof(uint32_t))
4952 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)),
4953 phba->ctrl_regs_memmap_p + off + buf_off);
4955 spin_unlock_irq(&phba->hbalock);
4961 * sysfs_ctlreg_read - Read method for reading from ctlreg
4962 * @filp: open sysfs file
4963 * @kobj: kernel kobject that contains the kernel class device.
4964 * @bin_attr: kernel attributes passed to us.
4965 * @buf: if successful contains the data from the adapter IOREG space.
4966 * @off: offset into buffer to beginning of data.
4967 * @count: bytes to transfer.
4970 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
4971 * Uses the adapter io control registers to read data into buf.
4974 * -ERANGE off and count combo out of range
4975 * -EINVAL off, count or buff address invalid
4976 * value of count, buf contents read
4979 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
4980 struct bin_attribute *bin_attr,
4981 char *buf, loff_t off, size_t count)
4985 struct device *dev = container_of(kobj, struct device, kobj);
4986 struct Scsi_Host *shost = class_to_shost(dev);
4987 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4988 struct lpfc_hba *phba = vport->phba;
4990 if (phba->sli_rev >= LPFC_SLI_REV4)
4993 if (off > FF_REG_AREA_SIZE)
4996 if ((off + count) > FF_REG_AREA_SIZE)
4997 count = FF_REG_AREA_SIZE - off;
4999 if (count == 0) return 0;
5001 if (off % 4 || count % 4 || (unsigned long)buf % 4)
5004 spin_lock_irq(&phba->hbalock);
5006 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
5007 tmp_ptr = (uint32_t *)(buf + buf_off);
5008 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
5011 spin_unlock_irq(&phba->hbalock);
5016 static struct bin_attribute sysfs_ctlreg_attr = {
5019 .mode = S_IRUSR | S_IWUSR,
5022 .read = sysfs_ctlreg_read,
5023 .write = sysfs_ctlreg_write,
5027 * sysfs_mbox_write - Write method for writing information via mbox
5028 * @filp: open sysfs file
5029 * @kobj: kernel kobject that contains the kernel class device.
5030 * @bin_attr: kernel attributes passed to us.
5031 * @buf: contains the data to be written to sysfs mbox.
5032 * @off: offset into buffer to beginning of data.
5033 * @count: bytes to transfer.
5036 * Deprecated function. All mailbox access from user space is performed via the
5040 * -EPERM operation not permitted
5043 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
5044 struct bin_attribute *bin_attr,
5045 char *buf, loff_t off, size_t count)
5051 * sysfs_mbox_read - Read method for reading information via mbox
5052 * @filp: open sysfs file
5053 * @kobj: kernel kobject that contains the kernel class device.
5054 * @bin_attr: kernel attributes passed to us.
5055 * @buf: contains the data to be read from sysfs mbox.
5056 * @off: offset into buffer to beginning of data.
5057 * @count: bytes to transfer.
5060 * Deprecated function. All mailbox access from user space is performed via the
5064 * -EPERM operation not permitted
5067 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
5068 struct bin_attribute *bin_attr,
5069 char *buf, loff_t off, size_t count)
5074 static struct bin_attribute sysfs_mbox_attr = {
5077 .mode = S_IRUSR | S_IWUSR,
5079 .size = MAILBOX_SYSFS_MAX,
5080 .read = sysfs_mbox_read,
5081 .write = sysfs_mbox_write,
5085 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
5086 * @vport: address of lpfc vport structure.
5090 * error return code from sysfs_create_bin_file()
5093 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
5095 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5098 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5099 &sysfs_drvr_stat_data_attr);
5101 /* Virtual ports do not need ctrl_reg and mbox */
5102 if (error || vport->port_type == LPFC_NPIV_PORT)
5105 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5106 &sysfs_ctlreg_attr);
5108 goto out_remove_stat_attr;
5110 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5113 goto out_remove_ctlreg_attr;
5116 out_remove_ctlreg_attr:
5117 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
5118 out_remove_stat_attr:
5119 sysfs_remove_bin_file(&shost->shost_dev.kobj,
5120 &sysfs_drvr_stat_data_attr);
5126 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
5127 * @vport: address of lpfc vport structure.
5130 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
5132 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5133 sysfs_remove_bin_file(&shost->shost_dev.kobj,
5134 &sysfs_drvr_stat_data_attr);
5135 /* Virtual ports do not need ctrl_reg and mbox */
5136 if (vport->port_type == LPFC_NPIV_PORT)
5138 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
5139 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
5143 * Dynamic FC Host Attributes Support
5147 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host
5148 * @shost: kernel scsi host pointer.
5151 lpfc_get_host_symbolic_name(struct Scsi_Host *shost)
5153 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5155 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
5156 sizeof fc_host_symbolic_name(shost));
5160 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
5161 * @shost: kernel scsi host pointer.
5164 lpfc_get_host_port_id(struct Scsi_Host *shost)
5166 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5168 /* note: fc_myDID already in cpu endianness */
5169 fc_host_port_id(shost) = vport->fc_myDID;
5173 * lpfc_get_host_port_type - Set the value of the scsi host port type
5174 * @shost: kernel scsi host pointer.
5177 lpfc_get_host_port_type(struct Scsi_Host *shost)
5179 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5180 struct lpfc_hba *phba = vport->phba;
5182 spin_lock_irq(shost->host_lock);
5184 if (vport->port_type == LPFC_NPIV_PORT) {
5185 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
5186 } else if (lpfc_is_link_up(phba)) {
5187 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5188 if (vport->fc_flag & FC_PUBLIC_LOOP)
5189 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
5191 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
5193 if (vport->fc_flag & FC_FABRIC)
5194 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
5196 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
5199 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
5201 spin_unlock_irq(shost->host_lock);
5205 * lpfc_get_host_port_state - Set the value of the scsi host port state
5206 * @shost: kernel scsi host pointer.
5209 lpfc_get_host_port_state(struct Scsi_Host *shost)
5211 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5212 struct lpfc_hba *phba = vport->phba;
5214 spin_lock_irq(shost->host_lock);
5216 if (vport->fc_flag & FC_OFFLINE_MODE)
5217 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
5219 switch (phba->link_state) {
5220 case LPFC_LINK_UNKNOWN:
5221 case LPFC_LINK_DOWN:
5222 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
5226 case LPFC_HBA_READY:
5227 /* Links up, reports port state accordingly */
5228 if (vport->port_state < LPFC_VPORT_READY)
5229 fc_host_port_state(shost) =
5230 FC_PORTSTATE_BYPASSED;
5232 fc_host_port_state(shost) =
5233 FC_PORTSTATE_ONLINE;
5235 case LPFC_HBA_ERROR:
5236 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
5239 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
5244 spin_unlock_irq(shost->host_lock);
5248 * lpfc_get_host_speed - Set the value of the scsi host speed
5249 * @shost: kernel scsi host pointer.
5252 lpfc_get_host_speed(struct Scsi_Host *shost)
5254 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5255 struct lpfc_hba *phba = vport->phba;
5257 spin_lock_irq(shost->host_lock);
5259 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) {
5260 switch(phba->fc_linkspeed) {
5261 case LPFC_LINK_SPEED_1GHZ:
5262 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
5264 case LPFC_LINK_SPEED_2GHZ:
5265 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
5267 case LPFC_LINK_SPEED_4GHZ:
5268 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
5270 case LPFC_LINK_SPEED_8GHZ:
5271 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
5273 case LPFC_LINK_SPEED_10GHZ:
5274 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
5276 case LPFC_LINK_SPEED_16GHZ:
5277 fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
5279 case LPFC_LINK_SPEED_32GHZ:
5280 fc_host_speed(shost) = FC_PORTSPEED_32GBIT;
5283 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
5287 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
5289 spin_unlock_irq(shost->host_lock);
5293 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
5294 * @shost: kernel scsi host pointer.
5297 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
5299 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5300 struct lpfc_hba *phba = vport->phba;
5303 spin_lock_irq(shost->host_lock);
5305 if ((vport->port_state > LPFC_FLOGI) &&
5306 ((vport->fc_flag & FC_FABRIC) ||
5307 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
5308 (vport->fc_flag & FC_PUBLIC_LOOP))))
5309 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
5311 /* fabric is local port if there is no F/FL_Port */
5314 spin_unlock_irq(shost->host_lock);
5316 fc_host_fabric_name(shost) = node_name;
5320 * lpfc_get_stats - Return statistical information about the adapter
5321 * @shost: kernel scsi host pointer.
5324 * NULL on error for link down, no mbox pool, sli2 active,
5325 * management not allowed, memory allocation error, or mbox error.
5329 * address of the adapter host statistics
5331 static struct fc_host_statistics *
5332 lpfc_get_stats(struct Scsi_Host *shost)
5334 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5335 struct lpfc_hba *phba = vport->phba;
5336 struct lpfc_sli *psli = &phba->sli;
5337 struct fc_host_statistics *hs = &phba->link_stats;
5338 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
5339 LPFC_MBOXQ_t *pmboxq;
5341 unsigned long seconds;
5345 * prevent udev from issuing mailbox commands until the port is
5348 if (phba->link_state < LPFC_LINK_DOWN ||
5349 !phba->mbox_mem_pool ||
5350 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
5353 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
5356 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5359 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
5361 pmb = &pmboxq->u.mb;
5362 pmb->mbxCommand = MBX_READ_STATUS;
5363 pmb->mbxOwner = OWN_HOST;
5364 pmboxq->context1 = NULL;
5365 pmboxq->vport = vport;
5367 if (vport->fc_flag & FC_OFFLINE_MODE)
5368 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5370 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5372 if (rc != MBX_SUCCESS) {
5373 if (rc != MBX_TIMEOUT)
5374 mempool_free(pmboxq, phba->mbox_mem_pool);
5378 memset(hs, 0, sizeof (struct fc_host_statistics));
5380 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
5382 * The MBX_READ_STATUS returns tx_k_bytes which has to
5383 * converted to words
5385 hs->tx_words = (uint64_t)
5386 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt
5388 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
5389 hs->rx_words = (uint64_t)
5390 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt
5393 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
5394 pmb->mbxCommand = MBX_READ_LNK_STAT;
5395 pmb->mbxOwner = OWN_HOST;
5396 pmboxq->context1 = NULL;
5397 pmboxq->vport = vport;
5399 if (vport->fc_flag & FC_OFFLINE_MODE)
5400 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5402 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5404 if (rc != MBX_SUCCESS) {
5405 if (rc != MBX_TIMEOUT)
5406 mempool_free(pmboxq, phba->mbox_mem_pool);
5410 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
5411 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
5412 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
5413 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
5414 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
5415 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
5416 hs->error_frames = pmb->un.varRdLnk.crcCnt;
5418 hs->link_failure_count -= lso->link_failure_count;
5419 hs->loss_of_sync_count -= lso->loss_of_sync_count;
5420 hs->loss_of_signal_count -= lso->loss_of_signal_count;
5421 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
5422 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
5423 hs->invalid_crc_count -= lso->invalid_crc_count;
5424 hs->error_frames -= lso->error_frames;
5426 if (phba->hba_flag & HBA_FCOE_MODE) {
5428 hs->nos_count = (phba->link_events >> 1);
5429 hs->nos_count -= lso->link_events;
5430 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5431 hs->lip_count = (phba->fc_eventTag >> 1);
5432 hs->lip_count -= lso->link_events;
5436 hs->nos_count = (phba->fc_eventTag >> 1);
5437 hs->nos_count -= lso->link_events;
5440 hs->dumped_frames = -1;
5442 seconds = get_seconds();
5443 if (seconds < psli->stats_start)
5444 hs->seconds_since_last_reset = seconds +
5445 ((unsigned long)-1 - psli->stats_start);
5447 hs->seconds_since_last_reset = seconds - psli->stats_start;
5449 mempool_free(pmboxq, phba->mbox_mem_pool);
5455 * lpfc_reset_stats - Copy the adapter link stats information
5456 * @shost: kernel scsi host pointer.
5459 lpfc_reset_stats(struct Scsi_Host *shost)
5461 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5462 struct lpfc_hba *phba = vport->phba;
5463 struct lpfc_sli *psli = &phba->sli;
5464 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
5465 LPFC_MBOXQ_t *pmboxq;
5469 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
5472 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5475 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
5477 pmb = &pmboxq->u.mb;
5478 pmb->mbxCommand = MBX_READ_STATUS;
5479 pmb->mbxOwner = OWN_HOST;
5480 pmb->un.varWords[0] = 0x1; /* reset request */
5481 pmboxq->context1 = NULL;
5482 pmboxq->vport = vport;
5484 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
5485 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
5486 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5488 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5490 if (rc != MBX_SUCCESS) {
5491 if (rc != MBX_TIMEOUT)
5492 mempool_free(pmboxq, phba->mbox_mem_pool);
5496 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
5497 pmb->mbxCommand = MBX_READ_LNK_STAT;
5498 pmb->mbxOwner = OWN_HOST;
5499 pmboxq->context1 = NULL;
5500 pmboxq->vport = vport;
5502 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
5503 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
5504 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5506 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5508 if (rc != MBX_SUCCESS) {
5509 if (rc != MBX_TIMEOUT)
5510 mempool_free( pmboxq, phba->mbox_mem_pool);
5514 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
5515 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
5516 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
5517 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
5518 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
5519 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
5520 lso->error_frames = pmb->un.varRdLnk.crcCnt;
5521 if (phba->hba_flag & HBA_FCOE_MODE)
5522 lso->link_events = (phba->link_events >> 1);
5524 lso->link_events = (phba->fc_eventTag >> 1);
5526 psli->stats_start = get_seconds();
5528 mempool_free(pmboxq, phba->mbox_mem_pool);
5534 * The LPFC driver treats linkdown handling as target loss events so there
5535 * are no sysfs handlers for link_down_tmo.
5539 * lpfc_get_node_by_target - Return the nodelist for a target
5540 * @starget: kernel scsi target pointer.
5543 * address of the node list if found
5544 * NULL target not found
5546 static struct lpfc_nodelist *
5547 lpfc_get_node_by_target(struct scsi_target *starget)
5549 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
5550 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5551 struct lpfc_nodelist *ndlp;
5553 spin_lock_irq(shost->host_lock);
5554 /* Search for this, mapped, target ID */
5555 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5556 if (NLP_CHK_NODE_ACT(ndlp) &&
5557 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
5558 starget->id == ndlp->nlp_sid) {
5559 spin_unlock_irq(shost->host_lock);
5563 spin_unlock_irq(shost->host_lock);
5568 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
5569 * @starget: kernel scsi target pointer.
5572 lpfc_get_starget_port_id(struct scsi_target *starget)
5574 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5576 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
5580 * lpfc_get_starget_node_name - Set the target node name
5581 * @starget: kernel scsi target pointer.
5583 * Description: Set the target node name to the ndlp node name wwn or zero.
5586 lpfc_get_starget_node_name(struct scsi_target *starget)
5588 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5590 fc_starget_node_name(starget) =
5591 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
5595 * lpfc_get_starget_port_name - Set the target port name
5596 * @starget: kernel scsi target pointer.
5598 * Description: set the target port name to the ndlp port name wwn or zero.
5601 lpfc_get_starget_port_name(struct scsi_target *starget)
5603 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5605 fc_starget_port_name(starget) =
5606 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
5610 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
5611 * @rport: fc rport address.
5612 * @timeout: new value for dev loss tmo.
5615 * If timeout is non zero set the dev_loss_tmo to timeout, else set
5616 * dev_loss_tmo to one.
5619 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
5622 rport->dev_loss_tmo = timeout;
5624 rport->dev_loss_tmo = 1;
5628 * lpfc_rport_show_function - Return rport target information
5631 * Macro that uses field to generate a function with the name lpfc_show_rport_
5633 * lpfc_show_rport_##field: returns the bytes formatted in buf
5634 * @cdev: class converted to an fc_rport.
5635 * @buf: on return contains the target_field or zero.
5637 * Returns: size of formatted string.
5639 #define lpfc_rport_show_function(field, format_string, sz, cast) \
5641 lpfc_show_rport_##field (struct device *dev, \
5642 struct device_attribute *attr, \
5645 struct fc_rport *rport = transport_class_to_rport(dev); \
5646 struct lpfc_rport_data *rdata = rport->hostdata; \
5647 return snprintf(buf, sz, format_string, \
5648 (rdata->target) ? cast rdata->target->field : 0); \
5651 #define lpfc_rport_rd_attr(field, format_string, sz) \
5652 lpfc_rport_show_function(field, format_string, sz, ) \
5653 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
5656 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
5657 * @fc_vport: The fc_vport who's symbolic name has been changed.
5660 * This function is called by the transport after the @fc_vport's symbolic name
5661 * has been changed. This function re-registers the symbolic name with the
5662 * switch to propagate the change into the fabric if the vport is active.
5665 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
5667 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
5669 if (vport->port_state == LPFC_VPORT_READY)
5670 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
5674 * lpfc_hba_log_verbose_init - Set hba's log verbose level
5675 * @phba: Pointer to lpfc_hba struct.
5677 * This function is called by the lpfc_get_cfgparam() routine to set the
5678 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
5679 * log message according to the module's lpfc_log_verbose parameter setting
5680 * before hba port or vport created.
5683 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
5685 phba->cfg_log_verbose = verbose;
5688 struct fc_function_template lpfc_transport_functions = {
5689 /* fixed attributes the driver supports */
5690 .show_host_node_name = 1,
5691 .show_host_port_name = 1,
5692 .show_host_supported_classes = 1,
5693 .show_host_supported_fc4s = 1,
5694 .show_host_supported_speeds = 1,
5695 .show_host_maxframe_size = 1,
5697 .get_host_symbolic_name = lpfc_get_host_symbolic_name,
5698 .show_host_symbolic_name = 1,
5700 /* dynamic attributes the driver supports */
5701 .get_host_port_id = lpfc_get_host_port_id,
5702 .show_host_port_id = 1,
5704 .get_host_port_type = lpfc_get_host_port_type,
5705 .show_host_port_type = 1,
5707 .get_host_port_state = lpfc_get_host_port_state,
5708 .show_host_port_state = 1,
5710 /* active_fc4s is shown but doesn't change (thus no get function) */
5711 .show_host_active_fc4s = 1,
5713 .get_host_speed = lpfc_get_host_speed,
5714 .show_host_speed = 1,
5716 .get_host_fabric_name = lpfc_get_host_fabric_name,
5717 .show_host_fabric_name = 1,
5720 * The LPFC driver treats linkdown handling as target loss events
5721 * so there are no sysfs handlers for link_down_tmo.
5724 .get_fc_host_stats = lpfc_get_stats,
5725 .reset_fc_host_stats = lpfc_reset_stats,
5727 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
5728 .show_rport_maxframe_size = 1,
5729 .show_rport_supported_classes = 1,
5731 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
5732 .show_rport_dev_loss_tmo = 1,
5734 .get_starget_port_id = lpfc_get_starget_port_id,
5735 .show_starget_port_id = 1,
5737 .get_starget_node_name = lpfc_get_starget_node_name,
5738 .show_starget_node_name = 1,
5740 .get_starget_port_name = lpfc_get_starget_port_name,
5741 .show_starget_port_name = 1,
5743 .issue_fc_host_lip = lpfc_issue_lip,
5744 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
5745 .terminate_rport_io = lpfc_terminate_rport_io,
5747 .dd_fcvport_size = sizeof(struct lpfc_vport *),
5749 .vport_disable = lpfc_vport_disable,
5751 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
5753 .bsg_request = lpfc_bsg_request,
5754 .bsg_timeout = lpfc_bsg_timeout,
5757 struct fc_function_template lpfc_vport_transport_functions = {
5758 /* fixed attributes the driver supports */
5759 .show_host_node_name = 1,
5760 .show_host_port_name = 1,
5761 .show_host_supported_classes = 1,
5762 .show_host_supported_fc4s = 1,
5763 .show_host_supported_speeds = 1,
5764 .show_host_maxframe_size = 1,
5766 .get_host_symbolic_name = lpfc_get_host_symbolic_name,
5767 .show_host_symbolic_name = 1,
5769 /* dynamic attributes the driver supports */
5770 .get_host_port_id = lpfc_get_host_port_id,
5771 .show_host_port_id = 1,
5773 .get_host_port_type = lpfc_get_host_port_type,
5774 .show_host_port_type = 1,
5776 .get_host_port_state = lpfc_get_host_port_state,
5777 .show_host_port_state = 1,
5779 /* active_fc4s is shown but doesn't change (thus no get function) */
5780 .show_host_active_fc4s = 1,
5782 .get_host_speed = lpfc_get_host_speed,
5783 .show_host_speed = 1,
5785 .get_host_fabric_name = lpfc_get_host_fabric_name,
5786 .show_host_fabric_name = 1,
5789 * The LPFC driver treats linkdown handling as target loss events
5790 * so there are no sysfs handlers for link_down_tmo.
5793 .get_fc_host_stats = lpfc_get_stats,
5794 .reset_fc_host_stats = lpfc_reset_stats,
5796 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
5797 .show_rport_maxframe_size = 1,
5798 .show_rport_supported_classes = 1,
5800 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
5801 .show_rport_dev_loss_tmo = 1,
5803 .get_starget_port_id = lpfc_get_starget_port_id,
5804 .show_starget_port_id = 1,
5806 .get_starget_node_name = lpfc_get_starget_node_name,
5807 .show_starget_node_name = 1,
5809 .get_starget_port_name = lpfc_get_starget_port_name,
5810 .show_starget_port_name = 1,
5812 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
5813 .terminate_rport_io = lpfc_terminate_rport_io,
5815 .vport_disable = lpfc_vport_disable,
5817 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
5821 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
5822 * @phba: lpfc_hba pointer.
5825 lpfc_get_cfgparam(struct lpfc_hba *phba)
5827 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched);
5828 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset);
5829 lpfc_cr_delay_init(phba, lpfc_cr_delay);
5830 lpfc_cr_count_init(phba, lpfc_cr_count);
5831 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
5832 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
5833 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
5834 lpfc_ack0_init(phba, lpfc_ack0);
5835 lpfc_topology_init(phba, lpfc_topology);
5836 lpfc_link_speed_init(phba, lpfc_link_speed);
5837 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
5838 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo);
5839 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
5840 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
5841 lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
5842 lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
5843 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN);
5844 lpfc_use_msi_init(phba, lpfc_use_msi);
5845 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
5846 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map);
5847 lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel);
5848 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
5849 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
5850 lpfc_EnableXLane_init(phba, lpfc_EnableXLane);
5851 if (phba->sli_rev != LPFC_SLI_REV4)
5852 phba->cfg_EnableXLane = 0;
5853 lpfc_XLanePriority_init(phba, lpfc_XLanePriority);
5854 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t)));
5855 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t)));
5856 phba->cfg_oas_lun_state = 0;
5857 phba->cfg_oas_lun_status = 0;
5858 phba->cfg_oas_flags = 0;
5859 phba->cfg_oas_priority = 0;
5860 lpfc_enable_bg_init(phba, lpfc_enable_bg);
5861 if (phba->sli_rev == LPFC_SLI_REV4)
5864 phba->cfg_poll = lpfc_poll;
5866 phba->cfg_soft_wwnn = 0L;
5867 phba->cfg_soft_wwpn = 0L;
5868 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
5869 lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
5870 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
5871 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
5872 lpfc_aer_support_init(phba, lpfc_aer_support);
5873 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
5874 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade);
5875 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
5876 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
5877 lpfc_delay_discovery_init(phba, lpfc_delay_discovery);
5878 lpfc_sli_mode_init(phba, lpfc_sli_mode);
5879 phba->cfg_enable_dss = 1;
5880 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags);
5885 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
5886 * @vport: lpfc_vport pointer.
5889 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
5891 lpfc_log_verbose_init(vport, lpfc_log_verbose);
5892 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
5893 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
5894 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
5895 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
5896 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
5897 lpfc_restrict_login_init(vport, lpfc_restrict_login);
5898 lpfc_fcp_class_init(vport, lpfc_fcp_class);
5899 lpfc_use_adisc_init(vport, lpfc_use_adisc);
5900 lpfc_first_burst_size_init(vport, lpfc_first_burst_size);
5901 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
5902 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
5903 lpfc_max_luns_init(vport, lpfc_max_luns);
5904 lpfc_scan_down_init(vport, lpfc_scan_down);
5905 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);