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;
638 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
639 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
642 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
647 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
648 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
649 pmboxq->u.mb.mbxOwner = OWN_HOST;
651 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
653 if ((mbxstatus == MBX_SUCCESS) &&
654 (pmboxq->u.mb.mbxStatus == 0 ||
655 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
656 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
657 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
658 phba->cfg_link_speed);
659 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
661 if ((mbxstatus == MBX_SUCCESS) &&
662 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
663 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
664 "2859 SLI authentication is required "
665 "for INIT_LINK but has not done yet\n");
668 lpfc_set_loopback_flag(phba);
669 if (mbxstatus != MBX_TIMEOUT)
670 mempool_free(pmboxq, phba->mbox_mem_pool);
672 if (mbxstatus == MBXERR_ERROR)
679 * lpfc_do_offline - Issues a mailbox command to bring the link down
680 * @phba: lpfc_hba pointer.
681 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
684 * Assumes any error from lpfc_do_offline() will be negative.
685 * Can wait up to 5 seconds for the port ring buffers count
686 * to reach zero, prints a warning if it is not zero and continues.
687 * lpfc_workq_post_event() returns a non-zero return code if call fails.
690 * -EIO error posting the event
694 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
696 struct completion online_compl;
697 struct lpfc_sli_ring *pring;
698 struct lpfc_sli *psli;
704 init_completion(&online_compl);
705 rc = lpfc_workq_post_event(phba, &status, &online_compl,
706 LPFC_EVT_OFFLINE_PREP);
710 wait_for_completion(&online_compl);
717 /* Wait a little for things to settle down, but not
718 * long enough for dev loss timeout to expire.
720 for (i = 0; i < psli->num_rings; i++) {
721 pring = &psli->ring[i];
722 while (!list_empty(&pring->txcmplq)) {
724 if (cnt++ > 500) { /* 5 secs */
725 lpfc_printf_log(phba,
726 KERN_WARNING, LOG_INIT,
727 "0466 Outstanding IO when "
728 "bringing Adapter offline\n");
734 init_completion(&online_compl);
735 rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
739 wait_for_completion(&online_compl);
748 * lpfc_selective_reset - Offline then onlines the port
749 * @phba: lpfc_hba pointer.
752 * If the port is configured to allow a reset then the hba is brought
753 * offline then online.
756 * Assumes any error from lpfc_do_offline() will be negative.
757 * Do not make this function static.
760 * lpfc_do_offline() return code if not zero
761 * -EIO reset not configured or error posting the event
765 lpfc_selective_reset(struct lpfc_hba *phba)
767 struct completion online_compl;
771 if (!phba->cfg_enable_hba_reset)
774 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) {
775 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
781 init_completion(&online_compl);
782 rc = lpfc_workq_post_event(phba, &status, &online_compl,
787 wait_for_completion(&online_compl);
796 * lpfc_issue_reset - Selectively resets an adapter
797 * @dev: class device that is converted into a Scsi_host.
798 * @attr: device attribute, not used.
799 * @buf: containing the string "selective".
800 * @count: unused variable.
803 * If the buf contains the string "selective" then lpfc_selective_reset()
804 * is called to perform the reset.
807 * Assumes any error from lpfc_selective_reset() will be negative.
808 * If lpfc_selective_reset() returns zero then the length of the buffer
809 * is returned which indicates success
812 * -EINVAL if the buffer does not contain the string "selective"
813 * length of buf if lpfc-selective_reset() if the call succeeds
814 * return value of lpfc_selective_reset() if the call fails
817 lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
818 const char *buf, size_t count)
820 struct Scsi_Host *shost = class_to_shost(dev);
821 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
822 struct lpfc_hba *phba = vport->phba;
823 int status = -EINVAL;
825 if (!phba->cfg_enable_hba_reset)
828 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
829 status = phba->lpfc_selective_reset(phba);
838 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
839 * @phba: lpfc_hba pointer.
842 * SLI4 interface type-2 device to wait on the sliport status register for
843 * the readyness after performing a firmware reset.
846 * zero for success, -EPERM when port does not have privilege to perform the
847 * reset, -EIO when port timeout from recovering from the reset.
850 * As the caller will interpret the return code by value, be careful in making
851 * change or addition to return codes.
854 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
856 struct lpfc_register portstat_reg = {0};
860 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
861 &portstat_reg.word0);
863 /* verify if privileged for the request operation */
864 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) &&
865 !bf_get(lpfc_sliport_status_err, &portstat_reg))
868 /* wait for the SLI port firmware ready after firmware reset */
869 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
871 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
872 &portstat_reg.word0);
873 if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
875 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
877 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
882 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
889 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
890 * @phba: lpfc_hba pointer.
893 * Request SLI4 interface type-2 device to perform a physical register set
900 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
902 struct completion online_compl;
903 struct pci_dev *pdev = phba->pcidev;
904 uint32_t before_fc_flag;
905 uint32_t sriov_nr_virtfn;
907 int status = 0, rc = 0;
908 int job_posted = 1, sriov_err;
910 if (!phba->cfg_enable_hba_reset)
913 if ((phba->sli_rev < LPFC_SLI_REV4) ||
914 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
915 LPFC_SLI_INTF_IF_TYPE_2))
918 /* Keep state if we need to restore back */
919 before_fc_flag = phba->pport->fc_flag;
920 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;
922 /* Disable SR-IOV virtual functions if enabled */
923 if (phba->cfg_sriov_nr_virtfn) {
924 pci_disable_sriov(pdev);
925 phba->cfg_sriov_nr_virtfn = 0;
928 if (opcode == LPFC_FW_DUMP)
929 phba->hba_flag |= HBA_FW_DUMP_OP;
931 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
934 phba->hba_flag &= ~HBA_FW_DUMP_OP;
938 /* wait for the device to be quiesced before firmware reset */
941 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
942 LPFC_CTL_PDEV_CTL_OFFSET);
944 if (opcode == LPFC_FW_DUMP)
945 reg_val |= LPFC_FW_DUMP_REQUEST;
946 else if (opcode == LPFC_FW_RESET)
947 reg_val |= LPFC_CTL_PDEV_CTL_FRST;
948 else if (opcode == LPFC_DV_RESET)
949 reg_val |= LPFC_CTL_PDEV_CTL_DRST;
951 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
952 LPFC_CTL_PDEV_CTL_OFFSET);
954 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
956 /* delay driver action following IF_TYPE_2 reset */
957 rc = lpfc_sli4_pdev_status_reg_wait(phba);
960 /* no privilege for reset */
961 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
962 "3150 No privilege to perform the requested "
963 "access: x%x\n", reg_val);
964 } else if (rc == -EIO) {
965 /* reset failed, there is nothing more we can do */
966 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
967 "3153 Fail to perform the requested "
968 "access: x%x\n", reg_val);
972 /* keep the original port state */
973 if (before_fc_flag & FC_OFFLINE_MODE)
976 init_completion(&online_compl);
977 job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
982 wait_for_completion(&online_compl);
985 /* in any case, restore the virtual functions enabled as before */
986 if (sriov_nr_virtfn) {
988 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
990 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
993 /* return proper error code */
1004 * lpfc_nport_evt_cnt_show - Return the number of nport events
1005 * @dev: class device that is converted into a Scsi_host.
1006 * @attr: device attribute, not used.
1007 * @buf: on return contains the ascii number of nport events.
1009 * Returns: size of formatted string.
1012 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
1015 struct Scsi_Host *shost = class_to_shost(dev);
1016 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1017 struct lpfc_hba *phba = vport->phba;
1019 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
1023 * lpfc_board_mode_show - Return the state of the board
1024 * @dev: class device that is converted into a Scsi_host.
1025 * @attr: device attribute, not used.
1026 * @buf: on return contains the state of the adapter.
1028 * Returns: size of formatted string.
1031 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
1034 struct Scsi_Host *shost = class_to_shost(dev);
1035 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1036 struct lpfc_hba *phba = vport->phba;
1039 if (phba->link_state == LPFC_HBA_ERROR)
1041 else if (phba->link_state == LPFC_WARM_START)
1042 state = "warm start";
1043 else if (phba->link_state == LPFC_INIT_START)
1048 return snprintf(buf, PAGE_SIZE, "%s\n", state);
1052 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
1053 * @dev: class device that is converted into a Scsi_host.
1054 * @attr: device attribute, not used.
1055 * @buf: containing one of the strings "online", "offline", "warm" or "error".
1056 * @count: unused variable.
1059 * -EACCES if enable hba reset not enabled
1060 * -EINVAL if the buffer does not contain a valid string (see above)
1061 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
1062 * buf length greater than zero indicates success
1065 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
1066 const char *buf, size_t count)
1068 struct Scsi_Host *shost = class_to_shost(dev);
1069 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1070 struct lpfc_hba *phba = vport->phba;
1071 struct completion online_compl;
1072 char *board_mode_str = NULL;
1076 if (!phba->cfg_enable_hba_reset) {
1078 goto board_mode_out;
1081 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1082 "3050 lpfc_board_mode set to %s\n", buf);
1084 init_completion(&online_compl);
1086 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
1087 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1091 goto board_mode_out;
1093 wait_for_completion(&online_compl);
1094 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
1095 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1096 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
1097 if (phba->sli_rev == LPFC_SLI_REV4)
1100 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
1101 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
1102 if (phba->sli_rev == LPFC_SLI_REV4)
1105 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
1106 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
1107 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
1108 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
1109 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
1110 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
1111 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
1119 board_mode_str = strchr(buf, '\n');
1121 *board_mode_str = '\0';
1122 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1123 "3097 Failed \"%s\", status(%d), "
1125 buf, status, phba->pport->fc_flag);
1131 * lpfc_get_hba_info - Return various bits of informaton about the adapter
1132 * @phba: pointer to the adapter structure.
1133 * @mxri: max xri count.
1134 * @axri: available xri count.
1135 * @mrpi: max rpi count.
1136 * @arpi: available rpi count.
1137 * @mvpi: max vpi count.
1138 * @avpi: available vpi count.
1141 * If an integer pointer for an count is not null then the value for the
1142 * count is returned.
1149 lpfc_get_hba_info(struct lpfc_hba *phba,
1150 uint32_t *mxri, uint32_t *axri,
1151 uint32_t *mrpi, uint32_t *arpi,
1152 uint32_t *mvpi, uint32_t *avpi)
1154 struct lpfc_mbx_read_config *rd_config;
1155 LPFC_MBOXQ_t *pmboxq;
1161 * prevent udev from issuing mailbox commands until the port is
1164 if (phba->link_state < LPFC_LINK_DOWN ||
1165 !phba->mbox_mem_pool ||
1166 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
1169 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
1172 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1175 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1177 pmb = &pmboxq->u.mb;
1178 pmb->mbxCommand = MBX_READ_CONFIG;
1179 pmb->mbxOwner = OWN_HOST;
1180 pmboxq->context1 = NULL;
1182 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1183 rc = MBX_NOT_FINISHED;
1185 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1187 if (rc != MBX_SUCCESS) {
1188 if (rc != MBX_TIMEOUT)
1189 mempool_free(pmboxq, phba->mbox_mem_pool);
1193 if (phba->sli_rev == LPFC_SLI_REV4) {
1194 rd_config = &pmboxq->u.mqe.un.rd_config;
1196 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
1198 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
1199 phba->sli4_hba.max_cfg_param.rpi_used;
1201 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
1203 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
1204 phba->sli4_hba.max_cfg_param.xri_used;
1206 /* Account for differences with SLI-3. Get vpi count from
1207 * mailbox data and subtract one for max vpi value.
1209 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
1210 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
1215 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
1218 *mrpi = pmb->un.varRdConfig.max_rpi;
1220 *arpi = pmb->un.varRdConfig.avail_rpi;
1222 *mxri = pmb->un.varRdConfig.max_xri;
1224 *axri = pmb->un.varRdConfig.avail_xri;
1226 *mvpi = pmb->un.varRdConfig.max_vpi;
1228 *avpi = pmb->un.varRdConfig.avail_vpi;
1231 mempool_free(pmboxq, phba->mbox_mem_pool);
1236 * lpfc_max_rpi_show - Return maximum rpi
1237 * @dev: class device that is converted into a Scsi_host.
1238 * @attr: device attribute, not used.
1239 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
1242 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1243 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1244 * to "Unknown" and the buffer length is returned, therefore the caller
1245 * must check for "Unknown" in the buffer to detect a failure.
1247 * Returns: size of formatted string.
1250 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
1253 struct Scsi_Host *shost = class_to_shost(dev);
1254 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1255 struct lpfc_hba *phba = vport->phba;
1258 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
1259 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1260 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1264 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
1265 * @dev: class device that is converted into a Scsi_host.
1266 * @attr: device attribute, not used.
1267 * @buf: containing the used rpi count in decimal or "Unknown".
1270 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
1271 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1272 * to "Unknown" and the buffer length is returned, therefore the caller
1273 * must check for "Unknown" in the buffer to detect a failure.
1275 * Returns: size of formatted string.
1278 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
1281 struct Scsi_Host *shost = class_to_shost(dev);
1282 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1283 struct lpfc_hba *phba = vport->phba;
1286 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1287 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1288 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1292 * lpfc_max_xri_show - Return maximum xri
1293 * @dev: class device that is converted into a Scsi_host.
1294 * @attr: device attribute, not used.
1295 * @buf: on return contains the maximum xri count in decimal or "Unknown".
1298 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1299 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1300 * to "Unknown" and the buffer length is returned, therefore the caller
1301 * must check for "Unknown" in the buffer to detect a failure.
1303 * Returns: size of formatted string.
1306 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
1309 struct Scsi_Host *shost = class_to_shost(dev);
1310 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1311 struct lpfc_hba *phba = vport->phba;
1314 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1315 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1316 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1320 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1321 * @dev: class device that is converted into a Scsi_host.
1322 * @attr: device attribute, not used.
1323 * @buf: on return contains the used xri count in decimal or "Unknown".
1326 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
1327 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1328 * to "Unknown" and the buffer length is returned, therefore the caller
1329 * must check for "Unknown" in the buffer to detect a failure.
1331 * Returns: size of formatted string.
1334 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
1337 struct Scsi_Host *shost = class_to_shost(dev);
1338 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1339 struct lpfc_hba *phba = vport->phba;
1342 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
1343 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1344 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1348 * lpfc_max_vpi_show - Return maximum vpi
1349 * @dev: class device that is converted into a Scsi_host.
1350 * @attr: device attribute, not used.
1351 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
1354 * Calls lpfc_get_hba_info() asking for just the mvpi count.
1355 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1356 * to "Unknown" and the buffer length is returned, therefore the caller
1357 * must check for "Unknown" in the buffer to detect a failure.
1359 * Returns: size of formatted string.
1362 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
1365 struct Scsi_Host *shost = class_to_shost(dev);
1366 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1367 struct lpfc_hba *phba = vport->phba;
1370 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
1371 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1372 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1376 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1377 * @dev: class device that is converted into a Scsi_host.
1378 * @attr: device attribute, not used.
1379 * @buf: on return contains the used vpi count in decimal or "Unknown".
1382 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
1383 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1384 * to "Unknown" and the buffer length is returned, therefore the caller
1385 * must check for "Unknown" in the buffer to detect a failure.
1387 * Returns: size of formatted string.
1390 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
1393 struct Scsi_Host *shost = class_to_shost(dev);
1394 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1395 struct lpfc_hba *phba = vport->phba;
1398 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
1399 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1400 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1404 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1405 * @dev: class device that is converted into a Scsi_host.
1406 * @attr: device attribute, not used.
1407 * @buf: text that must be interpreted to determine if npiv is supported.
1410 * Buffer will contain text indicating npiv is not suppoerted on the port,
1411 * the port is an NPIV physical port, or it is an npiv virtual port with
1412 * the id of the vport.
1414 * Returns: size of formatted string.
1417 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
1420 struct Scsi_Host *shost = class_to_shost(dev);
1421 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1422 struct lpfc_hba *phba = vport->phba;
1424 if (!(phba->max_vpi))
1425 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
1426 if (vport->port_type == LPFC_PHYSICAL_PORT)
1427 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
1428 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
1432 * lpfc_poll_show - Return text about poll support for the adapter
1433 * @dev: class device that is converted into a Scsi_host.
1434 * @attr: device attribute, not used.
1435 * @buf: on return contains the cfg_poll in hex.
1438 * cfg_poll should be a lpfc_polling_flags type.
1440 * Returns: size of formatted string.
1443 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
1446 struct Scsi_Host *shost = class_to_shost(dev);
1447 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1448 struct lpfc_hba *phba = vport->phba;
1450 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
1454 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1455 * @dev: class device that is converted into a Scsi_host.
1456 * @attr: device attribute, not used.
1457 * @buf: one or more lpfc_polling_flags values.
1461 * buf contents converted to integer and checked for a valid value.
1464 * -EINVAL if the buffer connot be converted or is out of range
1465 * length of the buf on success
1468 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
1469 const char *buf, size_t count)
1471 struct Scsi_Host *shost = class_to_shost(dev);
1472 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1473 struct lpfc_hba *phba = vport->phba;
1478 if (!isdigit(buf[0]))
1481 if (sscanf(buf, "%i", &val) != 1)
1484 if ((val & 0x3) != val)
1487 if (phba->sli_rev == LPFC_SLI_REV4)
1490 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1491 "3051 lpfc_poll changed from %d to %d\n",
1492 phba->cfg_poll, val);
1494 spin_lock_irq(&phba->hbalock);
1496 old_val = phba->cfg_poll;
1498 if (val & ENABLE_FCP_RING_POLLING) {
1499 if ((val & DISABLE_FCP_RING_INT) &&
1500 !(old_val & DISABLE_FCP_RING_INT)) {
1501 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1502 spin_unlock_irq(&phba->hbalock);
1505 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
1506 writel(creg_val, phba->HCregaddr);
1507 readl(phba->HCregaddr); /* flush */
1509 lpfc_poll_start_timer(phba);
1511 } else if (val != 0x0) {
1512 spin_unlock_irq(&phba->hbalock);
1516 if (!(val & DISABLE_FCP_RING_INT) &&
1517 (old_val & DISABLE_FCP_RING_INT))
1519 spin_unlock_irq(&phba->hbalock);
1520 del_timer(&phba->fcp_poll_timer);
1521 spin_lock_irq(&phba->hbalock);
1522 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1523 spin_unlock_irq(&phba->hbalock);
1526 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1527 writel(creg_val, phba->HCregaddr);
1528 readl(phba->HCregaddr); /* flush */
1531 phba->cfg_poll = val;
1533 spin_unlock_irq(&phba->hbalock);
1539 * lpfc_fips_level_show - Return the current FIPS level for the HBA
1540 * @dev: class unused variable.
1541 * @attr: device attribute, not used.
1542 * @buf: on return contains the module description text.
1544 * Returns: size of formatted string.
1547 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr,
1550 struct Scsi_Host *shost = class_to_shost(dev);
1551 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1552 struct lpfc_hba *phba = vport->phba;
1554 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
1558 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
1559 * @dev: class unused variable.
1560 * @attr: device attribute, not used.
1561 * @buf: on return contains the module description text.
1563 * Returns: size of formatted string.
1566 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr,
1569 struct Scsi_Host *shost = class_to_shost(dev);
1570 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1571 struct lpfc_hba *phba = vport->phba;
1573 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
1577 * lpfc_dss_show - Return the current state of dss and the configured state
1578 * @dev: class converted to a Scsi_host structure.
1579 * @attr: device attribute, not used.
1580 * @buf: on return contains the formatted text.
1582 * Returns: size of formatted string.
1585 lpfc_dss_show(struct device *dev, struct device_attribute *attr,
1588 struct Scsi_Host *shost = class_to_shost(dev);
1589 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1590 struct lpfc_hba *phba = vport->phba;
1592 return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
1593 (phba->cfg_enable_dss) ? "Enabled" : "Disabled",
1594 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
1599 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
1600 * @dev: class converted to a Scsi_host structure.
1601 * @attr: device attribute, not used.
1602 * @buf: on return contains the formatted support level.
1605 * Returns the maximum number of virtual functions a physical function can
1606 * support, 0 will be returned if called on virtual function.
1608 * Returns: size of formatted string.
1611 lpfc_sriov_hw_max_virtfn_show(struct device *dev,
1612 struct device_attribute *attr,
1615 struct Scsi_Host *shost = class_to_shost(dev);
1616 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1617 struct lpfc_hba *phba = vport->phba;
1618 uint16_t max_nr_virtfn;
1620 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
1621 return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
1624 static inline bool lpfc_rangecheck(uint val, uint min, uint max)
1626 return val >= min && val <= max;
1630 * lpfc_param_show - Return a cfg attribute value in decimal
1633 * Macro that given an attr e.g. hba_queue_depth expands
1634 * into a function with the name lpfc_hba_queue_depth_show.
1636 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1637 * @dev: class device that is converted into a Scsi_host.
1638 * @attr: device attribute, not used.
1639 * @buf: on return contains the attribute value in decimal.
1641 * Returns: size of formatted string.
1643 #define lpfc_param_show(attr) \
1645 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1648 struct Scsi_Host *shost = class_to_shost(dev);\
1649 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1650 struct lpfc_hba *phba = vport->phba;\
1651 return snprintf(buf, PAGE_SIZE, "%d\n",\
1656 * lpfc_param_hex_show - Return a cfg attribute value in hex
1659 * Macro that given an attr e.g. hba_queue_depth expands
1660 * into a function with the name lpfc_hba_queue_depth_show
1662 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1663 * @dev: class device that is converted into a Scsi_host.
1664 * @attr: device attribute, not used.
1665 * @buf: on return contains the attribute value in hexadecimal.
1667 * Returns: size of formatted string.
1669 #define lpfc_param_hex_show(attr) \
1671 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1674 struct Scsi_Host *shost = class_to_shost(dev);\
1675 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1676 struct lpfc_hba *phba = vport->phba;\
1678 val = phba->cfg_##attr;\
1679 return snprintf(buf, PAGE_SIZE, "%#x\n",\
1684 * lpfc_param_init - Initializes a cfg attribute
1687 * Macro that given an attr e.g. hba_queue_depth expands
1688 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1689 * takes a default argument, a minimum and maximum argument.
1691 * lpfc_##attr##_init: Initializes an attribute.
1692 * @phba: pointer the the adapter structure.
1693 * @val: integer attribute value.
1695 * Validates the min and max values then sets the adapter config field
1696 * accordingly, or uses the default if out of range and prints an error message.
1700 * -EINVAL if default used
1702 #define lpfc_param_init(attr, default, minval, maxval) \
1704 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1706 if (lpfc_rangecheck(val, minval, maxval)) {\
1707 phba->cfg_##attr = val;\
1710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1711 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
1712 "allowed range is ["#minval", "#maxval"]\n", val); \
1713 phba->cfg_##attr = default;\
1718 * lpfc_param_set - Set a cfg attribute value
1721 * Macro that given an attr e.g. hba_queue_depth expands
1722 * into a function with the name lpfc_hba_queue_depth_set
1724 * lpfc_##attr##_set: Sets an attribute value.
1725 * @phba: pointer the the adapter structure.
1726 * @val: integer attribute value.
1729 * Validates the min and max values then sets the
1730 * adapter config field if in the valid range. prints error message
1731 * and does not set the parameter if invalid.
1735 * -EINVAL if val is invalid
1737 #define lpfc_param_set(attr, default, minval, maxval) \
1739 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1741 if (lpfc_rangecheck(val, minval, maxval)) {\
1742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1743 "3052 lpfc_" #attr " changed from %d to %d\n", \
1744 phba->cfg_##attr, val); \
1745 phba->cfg_##attr = val;\
1748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1749 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
1750 "allowed range is ["#minval", "#maxval"]\n", val); \
1755 * lpfc_param_store - Set a vport attribute value
1758 * Macro that given an attr e.g. hba_queue_depth expands
1759 * into a function with the name lpfc_hba_queue_depth_store.
1761 * lpfc_##attr##_store: Set an sttribute value.
1762 * @dev: class device that is converted into a Scsi_host.
1763 * @attr: device attribute, not used.
1764 * @buf: contains the attribute value in ascii.
1768 * Convert the ascii text number to an integer, then
1769 * use the lpfc_##attr##_set function to set the value.
1772 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1773 * length of buffer upon success.
1775 #define lpfc_param_store(attr) \
1777 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1778 const char *buf, size_t count) \
1780 struct Scsi_Host *shost = class_to_shost(dev);\
1781 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1782 struct lpfc_hba *phba = vport->phba;\
1784 if (!isdigit(buf[0]))\
1786 if (sscanf(buf, "%i", &val) != 1)\
1788 if (lpfc_##attr##_set(phba, val) == 0) \
1789 return strlen(buf);\
1795 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1798 * Macro that given an attr e.g. hba_queue_depth expands
1799 * into a function with the name lpfc_hba_queue_depth_show
1801 * lpfc_##attr##_show: prints the attribute value in decimal.
1802 * @dev: class device that is converted into a Scsi_host.
1803 * @attr: device attribute, not used.
1804 * @buf: on return contains the attribute value in decimal.
1806 * Returns: length of formatted string.
1808 #define lpfc_vport_param_show(attr) \
1810 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1813 struct Scsi_Host *shost = class_to_shost(dev);\
1814 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1815 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
1819 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1822 * Macro that given an attr e.g.
1823 * hba_queue_depth expands into a function with the name
1824 * lpfc_hba_queue_depth_show
1826 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1827 * @dev: class device that is converted into a Scsi_host.
1828 * @attr: device attribute, not used.
1829 * @buf: on return contains the attribute value in hexadecimal.
1831 * Returns: length of formatted string.
1833 #define lpfc_vport_param_hex_show(attr) \
1835 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1838 struct Scsi_Host *shost = class_to_shost(dev);\
1839 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1840 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
1844 * lpfc_vport_param_init - Initialize a vport cfg attribute
1847 * Macro that given an attr e.g. hba_queue_depth expands
1848 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1849 * takes a default argument, a minimum and maximum argument.
1851 * lpfc_##attr##_init: validates the min and max values then sets the
1852 * adapter config field accordingly, or uses the default if out of range
1853 * and prints an error message.
1854 * @phba: pointer the the adapter structure.
1855 * @val: integer attribute value.
1859 * -EINVAL if default used
1861 #define lpfc_vport_param_init(attr, default, minval, maxval) \
1863 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1865 if (lpfc_rangecheck(val, minval, maxval)) {\
1866 vport->cfg_##attr = val;\
1869 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1870 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1871 "allowed range is ["#minval", "#maxval"]\n", val); \
1872 vport->cfg_##attr = default;\
1877 * lpfc_vport_param_set - Set a vport cfg attribute
1880 * Macro that given an attr e.g. hba_queue_depth expands
1881 * into a function with the name lpfc_hba_queue_depth_set
1883 * lpfc_##attr##_set: validates the min and max values then sets the
1884 * adapter config field if in the valid range. prints error message
1885 * and does not set the parameter if invalid.
1886 * @phba: pointer the the adapter structure.
1887 * @val: integer attribute value.
1891 * -EINVAL if val is invalid
1893 #define lpfc_vport_param_set(attr, default, minval, maxval) \
1895 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1897 if (lpfc_rangecheck(val, minval, maxval)) {\
1898 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1899 "3053 lpfc_" #attr \
1900 " changed from %d (x%x) to %d (x%x)\n", \
1901 vport->cfg_##attr, vport->cfg_##attr, \
1903 vport->cfg_##attr = val;\
1906 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1907 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1908 "allowed range is ["#minval", "#maxval"]\n", val); \
1913 * lpfc_vport_param_store - Set a vport attribute
1916 * Macro that given an attr e.g. hba_queue_depth
1917 * expands into a function with the name lpfc_hba_queue_depth_store
1919 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1920 * use the lpfc_##attr##_set function to set the value.
1921 * @cdev: class device that is converted into a Scsi_host.
1922 * @buf: contains the attribute value in decimal.
1926 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1927 * length of buffer upon success.
1929 #define lpfc_vport_param_store(attr) \
1931 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1932 const char *buf, size_t count) \
1934 struct Scsi_Host *shost = class_to_shost(dev);\
1935 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1937 if (!isdigit(buf[0]))\
1939 if (sscanf(buf, "%i", &val) != 1)\
1941 if (lpfc_##attr##_set(vport, val) == 0) \
1942 return strlen(buf);\
1948 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
1949 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
1950 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
1951 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
1952 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
1953 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
1954 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
1955 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
1956 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
1957 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
1958 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
1959 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
1960 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
1961 lpfc_link_state_store);
1962 static DEVICE_ATTR(option_rom_version, S_IRUGO,
1963 lpfc_option_rom_version_show, NULL);
1964 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
1965 lpfc_num_discovered_ports_show, NULL);
1966 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
1967 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
1968 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
1969 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
1970 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
1971 lpfc_board_mode_show, lpfc_board_mode_store);
1972 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
1973 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
1974 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
1975 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
1976 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
1977 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
1978 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
1979 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
1980 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
1981 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
1982 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
1983 static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
1984 static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
1985 lpfc_sriov_hw_max_virtfn_show, NULL);
1986 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
1987 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
1990 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
1993 * lpfc_wwn_set - Convert string to the 8 byte WWN value.
1995 * @cnt: Length of string.
1996 * @wwn: Array to receive converted wwn value.
1999 * -EINVAL if the buffer does not contain a valid wwn
2003 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[])
2007 /* Count may include a LF at end of string */
2008 if (buf[cnt-1] == '\n')
2011 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) ||
2012 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
2015 memset(wwn, 0, WWN_SZ);
2017 /* Validate and store the new name */
2018 for (i = 0, j = 0; i < 16; i++) {
2019 if ((*buf >= 'a') && (*buf <= 'f'))
2020 j = ((j << 4) | ((*buf++ - 'a') + 10));
2021 else if ((*buf >= 'A') && (*buf <= 'F'))
2022 j = ((j << 4) | ((*buf++ - 'A') + 10));
2023 else if ((*buf >= '0') && (*buf <= '9'))
2024 j = ((j << 4) | (*buf++ - '0'));
2028 wwn[i/2] = j & 0xff;
2035 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
2036 * @dev: class device that is converted into a Scsi_host.
2037 * @attr: device attribute, not used.
2038 * @buf: containing the string lpfc_soft_wwn_key.
2039 * @count: must be size of lpfc_soft_wwn_key.
2042 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
2043 * length of buf indicates success
2046 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
2047 const char *buf, size_t count)
2049 struct Scsi_Host *shost = class_to_shost(dev);
2050 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2051 struct lpfc_hba *phba = vport->phba;
2052 unsigned int cnt = count;
2055 * We're doing a simple sanity check for soft_wwpn setting.
2056 * We require that the user write a specific key to enable
2057 * the soft_wwpn attribute to be settable. Once the attribute
2058 * is written, the enable key resets. If further updates are
2059 * desired, the key must be written again to re-enable the
2062 * The "key" is not secret - it is a hardcoded string shown
2063 * here. The intent is to protect against the random user or
2064 * application that is just writing attributes.
2067 /* count may include a LF at end of string */
2068 if (buf[cnt-1] == '\n')
2071 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
2072 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
2075 phba->soft_wwn_enable = 1;
2078 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
2079 lpfc_soft_wwn_enable_store);
2082 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
2083 * @dev: class device that is converted into a Scsi_host.
2084 * @attr: device attribute, not used.
2085 * @buf: on return contains the wwpn in hexadecimal.
2087 * Returns: size of formatted string.
2090 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
2093 struct Scsi_Host *shost = class_to_shost(dev);
2094 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2095 struct lpfc_hba *phba = vport->phba;
2097 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2098 (unsigned long long)phba->cfg_soft_wwpn);
2102 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
2103 * @dev class device that is converted into a Scsi_host.
2104 * @attr: device attribute, not used.
2105 * @buf: contains the wwpn in hexadecimal.
2106 * @count: number of wwpn bytes in buf
2109 * -EACCES hba reset not enabled, adapter over temp
2110 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
2111 * -EIO error taking adapter offline or online
2112 * value of count on success
2115 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
2116 const char *buf, size_t count)
2118 struct Scsi_Host *shost = class_to_shost(dev);
2119 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2120 struct lpfc_hba *phba = vport->phba;
2121 struct completion online_compl;
2122 int stat1 = 0, stat2 = 0;
2123 unsigned int cnt = count;
2127 if (!phba->cfg_enable_hba_reset)
2129 spin_lock_irq(&phba->hbalock);
2130 if (phba->over_temp_state == HBA_OVER_TEMP) {
2131 spin_unlock_irq(&phba->hbalock);
2134 spin_unlock_irq(&phba->hbalock);
2135 /* count may include a LF at end of string */
2136 if (buf[cnt-1] == '\n')
2139 if (!phba->soft_wwn_enable)
2142 /* lock setting wwpn, wwnn down */
2143 phba->soft_wwn_enable = 0;
2145 rc = lpfc_wwn_set(buf, cnt, wwpn);
2147 /* not able to set wwpn, unlock it */
2148 phba->soft_wwn_enable = 1;
2152 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
2153 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
2154 if (phba->cfg_soft_wwnn)
2155 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
2157 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2158 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
2160 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
2162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2163 "0463 lpfc_soft_wwpn attribute set failed to "
2164 "reinit adapter - %d\n", stat1);
2165 init_completion(&online_compl);
2166 rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
2171 wait_for_completion(&online_compl);
2173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2174 "0464 lpfc_soft_wwpn attribute set failed to "
2175 "reinit adapter - %d\n", stat2);
2176 return (stat1 || stat2) ? -EIO : count;
2178 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,
2179 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
2182 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
2183 * @dev: class device that is converted into a Scsi_host.
2184 * @attr: device attribute, not used.
2185 * @buf: on return contains the wwnn in hexadecimal.
2187 * Returns: size of formatted string.
2190 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
2193 struct Scsi_Host *shost = class_to_shost(dev);
2194 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2195 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2196 (unsigned long long)phba->cfg_soft_wwnn);
2200 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
2201 * @cdev: class device that is converted into a Scsi_host.
2202 * @buf: contains the ww node name in hexadecimal.
2203 * @count: number of wwnn bytes in buf.
2206 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
2207 * value of count on success
2210 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
2211 const char *buf, size_t count)
2213 struct Scsi_Host *shost = class_to_shost(dev);
2214 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2215 unsigned int cnt = count;
2219 /* count may include a LF at end of string */
2220 if (buf[cnt-1] == '\n')
2223 if (!phba->soft_wwn_enable)
2226 rc = lpfc_wwn_set(buf, cnt, wwnn);
2228 /* Allow wwnn to be set many times, as long as the enable
2229 * is set. However, once the wwpn is set, everything locks.
2234 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
2236 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2237 "lpfc%d: soft_wwnn set. Value will take effect upon "
2238 "setting of the soft_wwpn\n", phba->brd_no);
2242 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,
2243 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
2246 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
2247 * Optimized Access Storage (OAS) operations.
2248 * @dev: class device that is converted into a Scsi_host.
2249 * @attr: device attribute, not used.
2250 * @buf: buffer for passing information.
2256 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr,
2259 struct Scsi_Host *shost = class_to_shost(dev);
2260 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2262 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2263 wwn_to_u64(phba->cfg_oas_tgt_wwpn));
2267 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for
2268 * Optimized Access Storage (OAS) operations.
2269 * @dev: class device that is converted into a Scsi_host.
2270 * @attr: device attribute, not used.
2271 * @buf: buffer for passing information.
2272 * @count: Size of the data buffer.
2275 * -EINVAL count is invalid, invalid wwpn byte invalid
2276 * -EPERM oas is not supported by hba
2277 * value of count on success
2280 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr,
2281 const char *buf, size_t count)
2283 struct Scsi_Host *shost = class_to_shost(dev);
2284 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2285 unsigned int cnt = count;
2286 uint8_t wwpn[WWN_SZ];
2292 /* count may include a LF at end of string */
2293 if (buf[cnt-1] == '\n')
2296 rc = lpfc_wwn_set(buf, cnt, wwpn);
2300 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2301 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2302 if (wwn_to_u64(wwpn) == 0)
2303 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET;
2305 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET;
2306 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
2307 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
2310 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR,
2311 lpfc_oas_tgt_show, lpfc_oas_tgt_store);
2314 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for
2315 * Optimized Access Storage (OAS) operations.
2316 * @dev: class device that is converted into a Scsi_host.
2317 * @attr: device attribute, not used.
2318 * @buf: buffer for passing information.
2324 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr,
2327 struct Scsi_Host *shost = class_to_shost(dev);
2328 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2330 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority);
2334 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for
2335 * Optimized Access Storage (OAS) operations.
2336 * @dev: class device that is converted into a Scsi_host.
2337 * @attr: device attribute, not used.
2338 * @buf: buffer for passing information.
2339 * @count: Size of the data buffer.
2342 * -EINVAL count is invalid, invalid wwpn byte invalid
2343 * -EPERM oas is not supported by hba
2344 * value of count on success
2347 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr,
2348 const char *buf, size_t count)
2350 struct Scsi_Host *shost = class_to_shost(dev);
2351 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2352 unsigned int cnt = count;
2359 /* count may include a LF at end of string */
2360 if (buf[cnt-1] == '\n')
2363 ret = kstrtoul(buf, 0, &val);
2364 if (ret || (val > 0x7f))
2368 phba->cfg_oas_priority = (uint8_t)val;
2370 phba->cfg_oas_priority = phba->cfg_XLanePriority;
2373 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR,
2374 lpfc_oas_priority_show, lpfc_oas_priority_store);
2377 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled
2378 * for Optimized Access Storage (OAS) operations.
2379 * @dev: class device that is converted into a Scsi_host.
2380 * @attr: device attribute, not used.
2381 * @buf: buffer for passing information.
2384 * value of count on success
2387 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr,
2390 struct Scsi_Host *shost = class_to_shost(dev);
2391 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2393 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2394 wwn_to_u64(phba->cfg_oas_vpt_wwpn));
2398 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled
2399 * for Optimized Access Storage (OAS) operations.
2400 * @dev: class device that is converted into a Scsi_host.
2401 * @attr: device attribute, not used.
2402 * @buf: buffer for passing information.
2403 * @count: Size of the data buffer.
2406 * -EINVAL count is invalid, invalid wwpn byte invalid
2407 * -EPERM oas is not supported by hba
2408 * value of count on success
2411 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr,
2412 const char *buf, size_t count)
2414 struct Scsi_Host *shost = class_to_shost(dev);
2415 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2416 unsigned int cnt = count;
2417 uint8_t wwpn[WWN_SZ];
2423 /* count may include a LF at end of string */
2424 if (buf[cnt-1] == '\n')
2427 rc = lpfc_wwn_set(buf, cnt, wwpn);
2431 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2432 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2433 if (wwn_to_u64(wwpn) == 0)
2434 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT;
2436 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT;
2437 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
2438 phba->cfg_oas_priority = phba->cfg_XLanePriority;
2439 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
2442 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR,
2443 lpfc_oas_vpt_show, lpfc_oas_vpt_store);
2446 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled)
2447 * of whether luns will be enabled or disabled
2448 * for Optimized Access Storage (OAS) operations.
2449 * @dev: class device that is converted into a Scsi_host.
2450 * @attr: device attribute, not used.
2451 * @buf: buffer for passing information.
2454 * size of formatted string.
2457 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr,
2460 struct Scsi_Host *shost = class_to_shost(dev);
2461 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2463 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
2467 * lpfc_oas_lun_state_store - Store the state (enabled or disabled)
2468 * of whether luns will be enabled or disabled
2469 * for Optimized Access Storage (OAS) operations.
2470 * @dev: class device that is converted into a Scsi_host.
2471 * @attr: device attribute, not used.
2472 * @buf: buffer for passing information.
2473 * @count: Size of the data buffer.
2476 * -EINVAL count is invalid, invalid wwpn byte invalid
2477 * -EPERM oas is not supported by hba
2478 * value of count on success
2481 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr,
2482 const char *buf, size_t count)
2484 struct Scsi_Host *shost = class_to_shost(dev);
2485 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2491 if (!isdigit(buf[0]))
2494 if (sscanf(buf, "%i", &val) != 1)
2497 if ((val != 0) && (val != 1))
2500 phba->cfg_oas_lun_state = val;
2503 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR,
2504 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store);
2507 * lpfc_oas_lun_status_show - Return the status of the Optimized Access
2508 * Storage (OAS) lun returned by the
2509 * lpfc_oas_lun_show function.
2510 * @dev: class device that is converted into a Scsi_host.
2511 * @attr: device attribute, not used.
2512 * @buf: buffer for passing information.
2515 * size of formatted string.
2518 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr,
2521 struct Scsi_Host *shost = class_to_shost(dev);
2522 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2524 if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
2527 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
2529 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
2530 lpfc_oas_lun_status_show, NULL);
2534 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage
2536 * @phba: lpfc_hba pointer.
2537 * @ndlp: pointer to fcp target node.
2538 * @lun: the fc lun for setting oas state.
2539 * @oas_state: the oas state to be set to the lun.
2543 * -EPERM OAS is not enabled or not supported by this port.
2547 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2548 uint8_t tgt_wwpn[], uint64_t lun,
2549 uint32_t oas_state, uint8_t pri)
2558 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
2559 (struct lpfc_name *)tgt_wwpn,
2563 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
2564 (struct lpfc_name *)tgt_wwpn, lun);
2571 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized
2572 * Access Storage (OAS) operations.
2573 * @phba: lpfc_hba pointer.
2574 * @vpt_wwpn: wwpn of the vport associated with the returned lun
2575 * @tgt_wwpn: wwpn of the target associated with the returned lun
2576 * @lun_status: status of the lun returned lun
2578 * Returns the first or next lun enabled for OAS operations for the vport/target
2579 * specified. If a lun is found, its vport wwpn, target wwpn and status is
2580 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned.
2583 * lun that is OAS enabled for the vport/target
2584 * NOT_OAS_ENABLED_LUN when no oas enabled lun found.
2587 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2588 uint8_t tgt_wwpn[], uint32_t *lun_status)
2592 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn)
2593 return NOT_OAS_ENABLED_LUN;
2594 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *)
2595 phba->sli4_hba.oas_next_vpt_wwpn,
2596 (struct lpfc_name *)
2597 phba->sli4_hba.oas_next_tgt_wwpn,
2598 &phba->sli4_hba.oas_next_lun,
2599 (struct lpfc_name *)vpt_wwpn,
2600 (struct lpfc_name *)tgt_wwpn,
2601 &found_lun, lun_status))
2604 return NOT_OAS_ENABLED_LUN;
2608 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations
2609 * @phba: lpfc_hba pointer.
2610 * @vpt_wwpn: vport wwpn by reference.
2611 * @tgt_wwpn: target wwpn by reference.
2612 * @lun: the fc lun for setting oas state.
2613 * @oas_state: the oas state to be set to the oas_lun.
2615 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE)
2616 * a lun for OAS operations.
2620 * -ENOMEM: failed to enable an lun for OAS operations
2621 * -EPERM: OAS is not enabled
2624 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2625 uint8_t tgt_wwpn[], uint64_t lun,
2626 uint32_t oas_state, uint8_t pri)
2631 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun,
2637 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target
2638 * @dev: class device that is converted into a Scsi_host.
2639 * @attr: device attribute, not used.
2640 * @buf: buffer for passing information.
2642 * This routine returns a lun enabled for OAS each time the function
2646 * SUCCESS: size of formatted string.
2647 * -EFAULT: target or vport wwpn was not set properly.
2648 * -EPERM: oas is not enabled.
2651 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr,
2654 struct Scsi_Host *shost = class_to_shost(dev);
2655 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2663 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
2664 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT))
2667 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
2668 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET))
2671 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn,
2672 phba->cfg_oas_tgt_wwpn,
2673 &phba->cfg_oas_lun_status);
2674 if (oas_lun != NOT_OAS_ENABLED_LUN)
2675 phba->cfg_oas_flags |= OAS_LUN_VALID;
2677 len += snprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
2683 * lpfc_oas_lun_store - Sets the OAS state for lun
2684 * @dev: class device that is converted into a Scsi_host.
2685 * @attr: device attribute, not used.
2686 * @buf: buffer for passing information.
2688 * This function sets the OAS state for lun. Before this function is called,
2689 * the vport wwpn, target wwpn, and oas state need to be set.
2692 * SUCCESS: size of formatted string.
2693 * -EFAULT: target or vport wwpn was not set properly.
2694 * -EPERM: oas is not enabled.
2695 * size of formatted string.
2698 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr,
2699 const char *buf, size_t count)
2701 struct Scsi_Host *shost = class_to_shost(dev);
2702 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2709 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
2712 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
2715 if (!isdigit(buf[0]))
2718 if (sscanf(buf, "0x%llx", &scsi_lun) != 1)
2721 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2722 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx "
2723 "priority 0x%x with oas state %d\n",
2724 wwn_to_u64(phba->cfg_oas_vpt_wwpn),
2725 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun,
2726 phba->cfg_oas_priority, phba->cfg_oas_lun_state);
2728 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn,
2729 phba->cfg_oas_tgt_wwpn, scsi_lun,
2730 phba->cfg_oas_lun_state,
2731 phba->cfg_oas_priority);
2737 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR,
2738 lpfc_oas_lun_show, lpfc_oas_lun_store);
2740 static int lpfc_poll = 0;
2741 module_param(lpfc_poll, int, S_IRUGO);
2742 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
2744 " 1 - poll with interrupts enabled"
2745 " 3 - poll and disable FCP ring interrupts");
2747 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
2748 lpfc_poll_show, lpfc_poll_store);
2750 LPFC_ATTR(sli_mode, 0, 0, 3,
2751 "SLI mode selector:"
2752 " 0 - auto (SLI-3 if supported),"
2753 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
2754 " 3 - select SLI-3");
2756 LPFC_ATTR_R(enable_npiv, 1, 0, 1,
2757 "Enable NPIV functionality");
2759 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
2760 "FCF Fast failover=1 Priority failover=2");
2763 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures
2764 # 0x0 = disabled, XRI/OXID use not tracked.
2765 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent.
2766 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent.
2768 LPFC_ATTR_R(enable_rrq, 2, 0, 2,
2769 "Enable RRQ functionality");
2772 # lpfc_suppress_link_up: Bring link up at initialization
2773 # 0x0 = bring link up (issue MBX_INIT_LINK)
2774 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
2775 # 0x2 = never bring up link
2776 # Default value is 0.
2778 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
2779 LPFC_DELAY_INIT_LINK_INDEFINITELY,
2780 "Suppress Link Up at initialization");
2782 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
2790 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2792 struct Scsi_Host *shost = class_to_shost(dev);
2793 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2795 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
2798 static DEVICE_ATTR(iocb_hw, S_IRUGO,
2799 lpfc_iocb_hw_show, NULL);
2801 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2803 struct Scsi_Host *shost = class_to_shost(dev);
2804 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2806 return snprintf(buf, PAGE_SIZE, "%d\n",
2807 phba->sli.ring[LPFC_ELS_RING].txq_max);
2810 static DEVICE_ATTR(txq_hw, S_IRUGO,
2811 lpfc_txq_hw_show, NULL);
2813 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
2816 struct Scsi_Host *shost = class_to_shost(dev);
2817 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2819 return snprintf(buf, PAGE_SIZE, "%d\n",
2820 phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
2823 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
2824 lpfc_txcmplq_hw_show, NULL);
2826 LPFC_ATTR_R(iocb_cnt, 2, 1, 5,
2827 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
2830 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
2831 # until the timer expires. Value range is [0,255]. Default value is 30.
2833 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2834 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
2835 module_param(lpfc_nodev_tmo, int, 0);
2836 MODULE_PARM_DESC(lpfc_nodev_tmo,
2837 "Seconds driver will hold I/O waiting "
2838 "for a device to come back");
2841 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2842 * @dev: class converted to a Scsi_host structure.
2843 * @attr: device attribute, not used.
2844 * @buf: on return contains the dev loss timeout in decimal.
2846 * Returns: size of formatted string.
2849 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
2852 struct Scsi_Host *shost = class_to_shost(dev);
2853 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2855 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
2859 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2860 * @vport: lpfc vport structure pointer.
2861 * @val: contains the nodev timeout value.
2864 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
2865 * a kernel error message is printed and zero is returned.
2866 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2867 * Otherwise nodev tmo is set to the default value.
2870 * zero if already set or if val is in range
2871 * -EINVAL val out of range
2874 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
2876 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
2877 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
2878 if (val != LPFC_DEF_DEVLOSS_TMO)
2879 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2880 "0407 Ignoring nodev_tmo module "
2881 "parameter because devloss_tmo is "
2886 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2887 vport->cfg_nodev_tmo = val;
2888 vport->cfg_devloss_tmo = val;
2891 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2892 "0400 lpfc_nodev_tmo attribute cannot be set to"
2893 " %d, allowed range is [%d, %d]\n",
2894 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2895 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2900 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2901 * @vport: lpfc vport structure pointer.
2904 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
2907 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2909 struct Scsi_Host *shost;
2910 struct lpfc_nodelist *ndlp;
2912 shost = lpfc_shost_from_vport(vport);
2913 spin_lock_irq(shost->host_lock);
2914 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2915 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2916 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
2917 spin_unlock_irq(shost->host_lock);
2921 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2922 * @vport: lpfc vport structure pointer.
2923 * @val: contains the tmo value.
2926 * If the devloss tmo is already set or the vport dev loss tmo has changed
2927 * then a kernel error message is printed and zero is returned.
2928 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2929 * Otherwise nodev tmo is set to the default value.
2932 * zero if already set or if val is in range
2933 * -EINVAL val out of range
2936 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2938 if (vport->dev_loss_tmo_changed ||
2939 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2940 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2941 "0401 Ignoring change to nodev_tmo "
2942 "because devloss_tmo is set.\n");
2945 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2946 vport->cfg_nodev_tmo = val;
2947 vport->cfg_devloss_tmo = val;
2949 * For compat: set the fc_host dev loss so new rports
2950 * will get the value.
2952 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2953 lpfc_update_rport_devloss_tmo(vport);
2956 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2957 "0403 lpfc_nodev_tmo attribute cannot be set to"
2958 "%d, allowed range is [%d, %d]\n",
2959 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2963 lpfc_vport_param_store(nodev_tmo)
2965 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
2966 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
2969 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
2970 # disappear until the timer expires. Value range is [0,255]. Default
2973 module_param(lpfc_devloss_tmo, int, S_IRUGO);
2974 MODULE_PARM_DESC(lpfc_devloss_tmo,
2975 "Seconds driver will hold I/O waiting "
2976 "for a device to come back");
2977 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
2978 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
2979 lpfc_vport_param_show(devloss_tmo)
2982 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
2983 * @vport: lpfc vport structure pointer.
2984 * @val: contains the tmo value.
2987 * If val is in a valid range then set the vport nodev tmo,
2988 * devloss tmo, also set the vport dev loss tmo changed flag.
2989 * Else a kernel error message is printed.
2992 * zero if val is in range
2993 * -EINVAL val out of range
2996 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
2998 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2999 vport->cfg_nodev_tmo = val;
3000 vport->cfg_devloss_tmo = val;
3001 vport->dev_loss_tmo_changed = 1;
3002 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3003 lpfc_update_rport_devloss_tmo(vport);
3007 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3008 "0404 lpfc_devloss_tmo attribute cannot be set to"
3009 " %d, allowed range is [%d, %d]\n",
3010 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3014 lpfc_vport_param_store(devloss_tmo)
3015 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
3016 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
3019 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
3020 # deluged with LOTS of information.
3021 # You can set a bit mask to record specific types of verbose messages:
3022 # See lpfc_logmsh.h for definitions.
3024 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
3025 "Verbose logging bit-mask");
3028 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
3029 # objects that have been registered with the nameserver after login.
3031 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
3032 "Deregister nameserver objects before LOGO");
3035 # lun_queue_depth: This parameter is used to limit the number of outstanding
3036 # commands per FCP LUN. Value range is [1,512]. Default value is 30.
3037 # If this parameter value is greater than 1/8th the maximum number of exchanges
3038 # supported by the HBA port, then the lun queue depth will be reduced to
3039 # 1/8th the maximum number of exchanges.
3041 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512,
3042 "Max number of FCP commands we can queue to a specific LUN");
3045 # tgt_queue_depth: This parameter is used to limit the number of outstanding
3046 # commands per target port. Value range is [10,65535]. Default value is 65535.
3048 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
3049 "Max number of FCP commands we can queue to a specific target port");
3052 # hba_queue_depth: This parameter is used to limit the number of outstanding
3053 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
3054 # value is greater than the maximum number of exchanges supported by the HBA,
3055 # then maximum number of exchanges supported by the HBA is used to determine
3056 # the hba_queue_depth.
3058 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
3059 "Max number of FCP commands we can queue to a lpfc HBA");
3062 # peer_port_login: This parameter allows/prevents logins
3063 # between peer ports hosted on the same physical port.
3064 # When this parameter is set 0 peer ports of same physical port
3065 # are not allowed to login to each other.
3066 # When this parameter is set 1 peer ports of same physical port
3067 # are allowed to login to each other.
3068 # Default value of this parameter is 0.
3070 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
3071 "Allow peer ports on the same physical port to login to each "
3075 # restrict_login: This parameter allows/prevents logins
3076 # between Virtual Ports and remote initiators.
3077 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
3078 # other initiators and will attempt to PLOGI all remote ports.
3079 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
3080 # remote ports and will not attempt to PLOGI to other initiators.
3081 # This parameter does not restrict to the physical port.
3082 # This parameter does not restrict logins to Fabric resident remote ports.
3083 # Default value of this parameter is 1.
3085 static int lpfc_restrict_login = 1;
3086 module_param(lpfc_restrict_login, int, S_IRUGO);
3087 MODULE_PARM_DESC(lpfc_restrict_login,
3088 "Restrict virtual ports login to remote initiators.");
3089 lpfc_vport_param_show(restrict_login);
3092 * lpfc_restrict_login_init - Set the vport restrict login flag
3093 * @vport: lpfc vport structure pointer.
3094 * @val: contains the restrict login value.
3097 * If val is not in a valid range then log a kernel error message and set
3098 * the vport restrict login to one.
3099 * If the port type is physical clear the restrict login flag and return.
3100 * Else set the restrict login flag to val.
3103 * zero if val is in range
3104 * -EINVAL val out of range
3107 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
3109 if (val < 0 || val > 1) {
3110 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3111 "0422 lpfc_restrict_login attribute cannot "
3112 "be set to %d, allowed range is [0, 1]\n",
3114 vport->cfg_restrict_login = 1;
3117 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3118 vport->cfg_restrict_login = 0;
3121 vport->cfg_restrict_login = val;
3126 * lpfc_restrict_login_set - Set the vport restrict login flag
3127 * @vport: lpfc vport structure pointer.
3128 * @val: contains the restrict login value.
3131 * If val is not in a valid range then log a kernel error message and set
3132 * the vport restrict login to one.
3133 * If the port type is physical and the val is not zero log a kernel
3134 * error message, clear the restrict login flag and return zero.
3135 * Else set the restrict login flag to val.
3138 * zero if val is in range
3139 * -EINVAL val out of range
3142 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
3144 if (val < 0 || val > 1) {
3145 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3146 "0425 lpfc_restrict_login attribute cannot "
3147 "be set to %d, allowed range is [0, 1]\n",
3149 vport->cfg_restrict_login = 1;
3152 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
3153 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3154 "0468 lpfc_restrict_login must be 0 for "
3155 "Physical ports.\n");
3156 vport->cfg_restrict_login = 0;
3159 vport->cfg_restrict_login = val;
3162 lpfc_vport_param_store(restrict_login);
3163 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
3164 lpfc_restrict_login_show, lpfc_restrict_login_store);
3167 # Some disk devices have a "select ID" or "select Target" capability.
3168 # From a protocol standpoint "select ID" usually means select the
3169 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
3170 # annex" which contains a table that maps a "select ID" (a number
3171 # between 0 and 7F) to an ALPA. By default, for compatibility with
3172 # older drivers, the lpfc driver scans this table from low ALPA to high
3175 # Turning on the scan-down variable (on = 1, off = 0) will
3176 # cause the lpfc driver to use an inverted table, effectively
3177 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
3179 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
3180 # and will not work across a fabric. Also this parameter will take
3181 # effect only in the case when ALPA map is not available.)
3183 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
3184 "Start scanning for devices from highest ALPA to lowest");
3187 # lpfc_topology: link topology for init link
3188 # 0x0 = attempt loop mode then point-to-point
3189 # 0x01 = internal loopback mode
3190 # 0x02 = attempt point-to-point mode only
3191 # 0x04 = attempt loop mode only
3192 # 0x06 = attempt point-to-point mode then loop
3193 # Set point-to-point mode if you want to run as an N_Port.
3194 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
3195 # Default value is 0.
3197 LPFC_ATTR(topology, 0, 0, 6,
3198 "Select Fibre Channel topology");
3201 * lpfc_topology_set - Set the adapters topology field
3202 * @phba: lpfc_hba pointer.
3203 * @val: topology value.
3206 * If val is in a valid range then set the adapter's topology field and
3207 * issue a lip; if the lip fails reset the topology to the old value.
3209 * If the value is not in range log a kernel error message and return an error.
3212 * zero if val is in range and lip okay
3213 * non-zero return value from lpfc_issue_lip()
3214 * -EINVAL val out of range
3217 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
3218 const char *buf, size_t count)
3220 struct Scsi_Host *shost = class_to_shost(dev);
3221 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3222 struct lpfc_hba *phba = vport->phba;
3225 const char *val_buf = buf;
3229 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
3231 val_buf = &buf[strlen("nolip ")];
3234 if (!isdigit(val_buf[0]))
3236 if (sscanf(val_buf, "%i", &val) != 1)
3239 if (val >= 0 && val <= 6) {
3240 prev_val = phba->cfg_topology;
3241 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
3243 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3244 "3113 Loop mode not supported at speed %d\n",
3248 if (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
3250 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3251 "3114 Loop mode not supported\n");
3254 phba->cfg_topology = val;
3258 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3259 "3054 lpfc_topology changed from %d to %d\n",
3261 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4)
3262 phba->fc_topology_changed = 1;
3263 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3265 phba->cfg_topology = prev_val;
3270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3271 "%d:0467 lpfc_topology attribute cannot be set to %d, "
3272 "allowed range is [0, 6]\n",
3277 lpfc_param_show(topology)
3278 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
3279 lpfc_topology_show, lpfc_topology_store);
3282 * lpfc_static_vport_show: Read callback function for
3283 * lpfc_static_vport sysfs file.
3284 * @dev: Pointer to class device object.
3285 * @attr: device attribute structure.
3286 * @buf: Data buffer.
3288 * This function is the read call back function for
3289 * lpfc_static_vport sysfs file. The lpfc_static_vport
3290 * sysfs file report the mageability of the vport.
3293 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
3296 struct Scsi_Host *shost = class_to_shost(dev);
3297 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3298 if (vport->vport_flag & STATIC_VPORT)
3299 sprintf(buf, "1\n");
3301 sprintf(buf, "0\n");
3307 * Sysfs attribute to control the statistical data collection.
3309 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
3310 lpfc_static_vport_show, NULL);
3313 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
3314 * @dev: Pointer to class device.
3315 * @buf: Data buffer.
3316 * @count: Size of the data buffer.
3318 * This function get called when an user write to the lpfc_stat_data_ctrl
3319 * sysfs file. This function parse the command written to the sysfs file
3320 * and take appropriate action. These commands are used for controlling
3321 * driver statistical data collection.
3322 * Following are the command this function handles.
3324 * setbucket <bucket_type> <base> <step>
3325 * = Set the latency buckets.
3326 * destroybucket = destroy all the buckets.
3327 * start = start data collection
3328 * stop = stop data collection
3329 * reset = reset the collected data
3332 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
3333 const char *buf, size_t count)
3335 struct Scsi_Host *shost = class_to_shost(dev);
3336 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3337 struct lpfc_hba *phba = vport->phba;
3338 #define LPFC_MAX_DATA_CTRL_LEN 1024
3339 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
3341 char *str_ptr, *token;
3342 struct lpfc_vport **vports;
3343 struct Scsi_Host *v_shost;
3344 char *bucket_type_str, *base_str, *step_str;
3345 unsigned long base, step, bucket_type;
3347 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
3348 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
3351 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN);
3352 str_ptr = &bucket_data[0];
3353 /* Ignore this token - this is command token */
3354 token = strsep(&str_ptr, "\t ");
3358 bucket_type_str = strsep(&str_ptr, "\t ");
3359 if (!bucket_type_str)
3362 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
3363 bucket_type = LPFC_LINEAR_BUCKET;
3364 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
3365 bucket_type = LPFC_POWER2_BUCKET;
3369 base_str = strsep(&str_ptr, "\t ");
3372 base = simple_strtoul(base_str, NULL, 0);
3374 step_str = strsep(&str_ptr, "\t ");
3377 step = simple_strtoul(step_str, NULL, 0);
3381 /* Block the data collection for every vport */
3382 vports = lpfc_create_vport_work_array(phba);
3386 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3387 v_shost = lpfc_shost_from_vport(vports[i]);
3388 spin_lock_irq(v_shost->host_lock);
3389 /* Block and reset data collection */
3390 vports[i]->stat_data_blocked = 1;
3391 if (vports[i]->stat_data_enabled)
3392 lpfc_vport_reset_stat_data(vports[i]);
3393 spin_unlock_irq(v_shost->host_lock);
3396 /* Set the bucket attributes */
3397 phba->bucket_type = bucket_type;
3398 phba->bucket_base = base;
3399 phba->bucket_step = step;
3401 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3402 v_shost = lpfc_shost_from_vport(vports[i]);
3404 /* Unblock data collection */
3405 spin_lock_irq(v_shost->host_lock);
3406 vports[i]->stat_data_blocked = 0;
3407 spin_unlock_irq(v_shost->host_lock);
3409 lpfc_destroy_vport_work_array(phba, vports);
3413 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
3414 vports = lpfc_create_vport_work_array(phba);
3418 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3419 v_shost = lpfc_shost_from_vport(vports[i]);
3420 spin_lock_irq(shost->host_lock);
3421 vports[i]->stat_data_blocked = 1;
3422 lpfc_free_bucket(vport);
3423 vport->stat_data_enabled = 0;
3424 vports[i]->stat_data_blocked = 0;
3425 spin_unlock_irq(shost->host_lock);
3427 lpfc_destroy_vport_work_array(phba, vports);
3428 phba->bucket_type = LPFC_NO_BUCKET;
3429 phba->bucket_base = 0;
3430 phba->bucket_step = 0;
3434 if (!strncmp(buf, "start", strlen("start"))) {
3435 /* If no buckets configured return error */
3436 if (phba->bucket_type == LPFC_NO_BUCKET)
3438 spin_lock_irq(shost->host_lock);
3439 if (vport->stat_data_enabled) {
3440 spin_unlock_irq(shost->host_lock);
3443 lpfc_alloc_bucket(vport);
3444 vport->stat_data_enabled = 1;
3445 spin_unlock_irq(shost->host_lock);
3449 if (!strncmp(buf, "stop", strlen("stop"))) {
3450 spin_lock_irq(shost->host_lock);
3451 if (vport->stat_data_enabled == 0) {
3452 spin_unlock_irq(shost->host_lock);
3455 lpfc_free_bucket(vport);
3456 vport->stat_data_enabled = 0;
3457 spin_unlock_irq(shost->host_lock);
3461 if (!strncmp(buf, "reset", strlen("reset"))) {
3462 if ((phba->bucket_type == LPFC_NO_BUCKET)
3463 || !vport->stat_data_enabled)
3465 spin_lock_irq(shost->host_lock);
3466 vport->stat_data_blocked = 1;
3467 lpfc_vport_reset_stat_data(vport);
3468 vport->stat_data_blocked = 0;
3469 spin_unlock_irq(shost->host_lock);
3477 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
3478 * @dev: Pointer to class device object.
3479 * @buf: Data buffer.
3481 * This function is the read call back function for
3482 * lpfc_stat_data_ctrl sysfs file. This function report the
3483 * current statistical data collection state.
3486 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
3489 struct Scsi_Host *shost = class_to_shost(dev);
3490 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3491 struct lpfc_hba *phba = vport->phba;
3495 unsigned long bucket_value;
3497 switch (phba->bucket_type) {
3498 case LPFC_LINEAR_BUCKET:
3499 bucket_type = "linear";
3501 case LPFC_POWER2_BUCKET:
3502 bucket_type = "power2";
3505 bucket_type = "No Bucket";
3509 sprintf(&buf[index], "Statistical Data enabled :%d, "
3510 "blocked :%d, Bucket type :%s, Bucket base :%d,"
3511 " Bucket step :%d\nLatency Ranges :",
3512 vport->stat_data_enabled, vport->stat_data_blocked,
3513 bucket_type, phba->bucket_base, phba->bucket_step);
3514 index = strlen(buf);
3515 if (phba->bucket_type != LPFC_NO_BUCKET) {
3516 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
3517 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
3518 bucket_value = phba->bucket_base +
3519 phba->bucket_step * i;
3521 bucket_value = phba->bucket_base +
3522 (1 << i) * phba->bucket_step;
3524 if (index + 10 > PAGE_SIZE)
3526 sprintf(&buf[index], "%08ld ", bucket_value);
3527 index = strlen(buf);
3530 sprintf(&buf[index], "\n");
3535 * Sysfs attribute to control the statistical data collection.
3537 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
3538 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
3541 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
3545 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
3548 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
3549 #define MAX_STAT_DATA_SIZE_PER_TARGET \
3550 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
3554 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
3556 * @kobj: Pointer to the kernel object
3557 * @bin_attr: Attribute object
3558 * @buff: Buffer pointer
3560 * @count: Buffer size
3562 * This function is the read call back function for lpfc_drvr_stat_data
3563 * sysfs file. This function export the statistical data to user
3567 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
3568 struct bin_attribute *bin_attr,
3569 char *buf, loff_t off, size_t count)
3571 struct device *dev = container_of(kobj, struct device,
3573 struct Scsi_Host *shost = class_to_shost(dev);
3574 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3575 struct lpfc_hba *phba = vport->phba;
3576 int i = 0, index = 0;
3577 unsigned long nport_index;
3578 struct lpfc_nodelist *ndlp = NULL;
3579 nport_index = (unsigned long)off /
3580 MAX_STAT_DATA_SIZE_PER_TARGET;
3582 if (!vport->stat_data_enabled || vport->stat_data_blocked
3583 || (phba->bucket_type == LPFC_NO_BUCKET))
3586 spin_lock_irq(shost->host_lock);
3587 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3588 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
3591 if (nport_index > 0) {
3596 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
3600 if (!ndlp->lat_data)
3604 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
3605 ndlp->nlp_portname.u.wwn[0],
3606 ndlp->nlp_portname.u.wwn[1],
3607 ndlp->nlp_portname.u.wwn[2],
3608 ndlp->nlp_portname.u.wwn[3],
3609 ndlp->nlp_portname.u.wwn[4],
3610 ndlp->nlp_portname.u.wwn[5],
3611 ndlp->nlp_portname.u.wwn[6],
3612 ndlp->nlp_portname.u.wwn[7]);
3614 index = strlen(buf);
3616 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
3617 sprintf(&buf[index], "%010u,",
3618 ndlp->lat_data[i].cmd_count);
3619 index = strlen(buf);
3621 sprintf(&buf[index], "\n");
3622 index = strlen(buf);
3624 spin_unlock_irq(shost->host_lock);
3628 static struct bin_attribute sysfs_drvr_stat_data_attr = {
3630 .name = "lpfc_drvr_stat_data",
3633 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
3634 .read = sysfs_drvr_stat_data_read,
3639 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
3641 # Value range is [0,16]. Default value is 0.
3644 * lpfc_link_speed_set - Set the adapters link speed
3645 * @phba: lpfc_hba pointer.
3646 * @val: link speed value.
3649 * If val is in a valid range then set the adapter's link speed field and
3650 * issue a lip; if the lip fails reset the link speed to the old value.
3653 * If the value is not in range log a kernel error message and return an error.
3656 * zero if val is in range and lip okay.
3657 * non-zero return value from lpfc_issue_lip()
3658 * -EINVAL val out of range
3661 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
3662 const char *buf, size_t count)
3664 struct Scsi_Host *shost = class_to_shost(dev);
3665 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3666 struct lpfc_hba *phba = vport->phba;
3667 int val = LPFC_USER_LINK_SPEED_AUTO;
3669 const char *val_buf = buf;
3673 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
3675 val_buf = &buf[strlen("nolip ")];
3678 if (!isdigit(val_buf[0]))
3680 if (sscanf(val_buf, "%i", &val) != 1)
3683 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3684 "3055 lpfc_link_speed changed from %d to %d %s\n",
3685 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
3687 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
3688 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
3689 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
3690 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
3691 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
3692 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) ||
3693 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb))) {
3694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3695 "2879 lpfc_link_speed attribute cannot be set "
3696 "to %d. Speed is not supported by this port.\n",
3700 if (val == LPFC_USER_LINK_SPEED_16G &&
3701 phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3703 "3112 lpfc_link_speed attribute cannot be set "
3704 "to %d. Speed is not supported in loop mode.\n",
3708 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3709 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3710 prev_val = phba->cfg_link_speed;
3711 phba->cfg_link_speed = val;
3715 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3717 phba->cfg_link_speed = prev_val;
3722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3723 "0469 lpfc_link_speed attribute cannot be set to %d, "
3724 "allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val);
3728 static int lpfc_link_speed = 0;
3729 module_param(lpfc_link_speed, int, S_IRUGO);
3730 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
3731 lpfc_param_show(link_speed)
3734 * lpfc_link_speed_init - Set the adapters link speed
3735 * @phba: lpfc_hba pointer.
3736 * @val: link speed value.
3739 * If val is in a valid range then set the adapter's link speed field.
3742 * If the value is not in range log a kernel error message, clear the link
3743 * speed and return an error.
3746 * zero if val saved.
3747 * -EINVAL val out of range
3750 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
3752 if (val == LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
3753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3754 "3111 lpfc_link_speed of %d cannot "
3755 "support loop mode, setting topology to default.\n",
3757 phba->cfg_topology = 0;
3759 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3760 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3761 phba->cfg_link_speed = val;
3764 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3765 "0405 lpfc_link_speed attribute cannot "
3766 "be set to %d, allowed values are "
3767 "["LPFC_LINK_SPEED_STRING"]\n", val);
3768 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
3772 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
3773 lpfc_link_speed_show, lpfc_link_speed_store);
3776 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
3777 # 0 = aer disabled or not supported
3778 # 1 = aer supported and enabled (default)
3779 # Value range is [0,1]. Default value is 1.
3781 LPFC_ATTR(aer_support, 1, 0, 1,
3782 "Enable PCIe device AER support");
3783 lpfc_param_show(aer_support)
3786 * lpfc_aer_support_store - Set the adapter for aer support
3788 * @dev: class device that is converted into a Scsi_host.
3789 * @attr: device attribute, not used.
3790 * @buf: containing enable or disable aer flag.
3791 * @count: unused variable.
3794 * If the val is 1 and currently the device's AER capability was not
3795 * enabled, invoke the kernel's enable AER helper routine, trying to
3796 * enable the device's AER capability. If the helper routine enabling
3797 * AER returns success, update the device's cfg_aer_support flag to
3798 * indicate AER is supported by the device; otherwise, if the device
3799 * AER capability is already enabled to support AER, then do nothing.
3801 * If the val is 0 and currently the device's AER support was enabled,
3802 * invoke the kernel's disable AER helper routine. After that, update
3803 * the device's cfg_aer_support flag to indicate AER is not supported
3804 * by the device; otherwise, if the device AER capability is already
3805 * disabled from supporting AER, then do nothing.
3808 * length of the buf on success if val is in range the intended mode
3810 * -EINVAL if val out of range or intended mode is not supported.
3813 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
3814 const char *buf, size_t count)
3816 struct Scsi_Host *shost = class_to_shost(dev);
3817 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
3818 struct lpfc_hba *phba = vport->phba;
3819 int val = 0, rc = -EINVAL;
3821 if (!isdigit(buf[0]))
3823 if (sscanf(buf, "%i", &val) != 1)
3828 if (phba->hba_flag & HBA_AER_ENABLED) {
3829 rc = pci_disable_pcie_error_reporting(phba->pcidev);
3831 spin_lock_irq(&phba->hbalock);
3832 phba->hba_flag &= ~HBA_AER_ENABLED;
3833 spin_unlock_irq(&phba->hbalock);
3834 phba->cfg_aer_support = 0;
3839 phba->cfg_aer_support = 0;
3844 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
3845 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3847 spin_lock_irq(&phba->hbalock);
3848 phba->hba_flag |= HBA_AER_ENABLED;
3849 spin_unlock_irq(&phba->hbalock);
3850 phba->cfg_aer_support = 1;
3855 phba->cfg_aer_support = 1;
3866 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
3867 lpfc_aer_support_show, lpfc_aer_support_store);
3870 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
3871 * @dev: class device that is converted into a Scsi_host.
3872 * @attr: device attribute, not used.
3873 * @buf: containing flag 1 for aer cleanup state.
3874 * @count: unused variable.
3877 * If the @buf contains 1 and the device currently has the AER support
3878 * enabled, then invokes the kernel AER helper routine
3879 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
3880 * error status register.
3885 * -EINVAL if the buf does not contain the 1 or the device is not currently
3886 * enabled with the AER support.
3889 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
3890 const char *buf, size_t count)
3892 struct Scsi_Host *shost = class_to_shost(dev);
3893 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3894 struct lpfc_hba *phba = vport->phba;
3897 if (!isdigit(buf[0]))
3899 if (sscanf(buf, "%i", &val) != 1)
3904 if (phba->hba_flag & HBA_AER_ENABLED)
3905 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
3913 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
3914 lpfc_aer_cleanup_state);
3917 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
3919 * @dev: class device that is converted into a Scsi_host.
3920 * @attr: device attribute, not used.
3921 * @buf: containing the string the number of vfs to be enabled.
3922 * @count: unused variable.
3925 * When this api is called either through user sysfs, the driver shall
3926 * try to enable or disable SR-IOV virtual functions according to the
3929 * If zero virtual function has been enabled to the physical function,
3930 * the driver shall invoke the pci enable virtual function api trying
3931 * to enable the virtual functions. If the nr_vfn provided is greater
3932 * than the maximum supported, the maximum virtual function number will
3933 * be used for invoking the api; otherwise, the nr_vfn provided shall
3934 * be used for invoking the api. If the api call returned success, the
3935 * actual number of virtual functions enabled will be set to the driver
3936 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
3937 * cfg_sriov_nr_virtfn remains zero.
3939 * If none-zero virtual functions have already been enabled to the
3940 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
3941 * -EINVAL will be returned and the driver does nothing;
3943 * If the nr_vfn provided is zero and none-zero virtual functions have
3944 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
3945 * disabling virtual function api shall be invoded to disable all the
3946 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
3947 * zero. Otherwise, if zero virtual function has been enabled, do
3951 * length of the buf on success if val is in range the intended mode
3953 * -EINVAL if val out of range or intended mode is not supported.
3956 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
3957 const char *buf, size_t count)
3959 struct Scsi_Host *shost = class_to_shost(dev);
3960 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
3961 struct lpfc_hba *phba = vport->phba;
3962 struct pci_dev *pdev = phba->pcidev;
3963 int val = 0, rc = -EINVAL;
3965 /* Sanity check on user data */
3966 if (!isdigit(buf[0]))
3968 if (sscanf(buf, "%i", &val) != 1)
3973 /* Request disabling virtual functions */
3975 if (phba->cfg_sriov_nr_virtfn > 0) {
3976 pci_disable_sriov(pdev);
3977 phba->cfg_sriov_nr_virtfn = 0;
3982 /* Request enabling virtual functions */
3983 if (phba->cfg_sriov_nr_virtfn > 0) {
3984 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3985 "3018 There are %d virtual functions "
3986 "enabled on physical function.\n",
3987 phba->cfg_sriov_nr_virtfn);
3991 if (val <= LPFC_MAX_VFN_PER_PFN)
3992 phba->cfg_sriov_nr_virtfn = val;
3994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3995 "3019 Enabling %d virtual functions is not "
4000 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
4002 phba->cfg_sriov_nr_virtfn = 0;
4010 static int lpfc_sriov_nr_virtfn = LPFC_DEF_VFN_PER_PFN;
4011 module_param(lpfc_sriov_nr_virtfn, int, S_IRUGO|S_IWUSR);
4012 MODULE_PARM_DESC(lpfc_sriov_nr_virtfn, "Enable PCIe device SR-IOV virtual fn");
4013 lpfc_param_show(sriov_nr_virtfn)
4016 * lpfc_sriov_nr_virtfn_init - Set the initial sr-iov virtual function enable
4017 * @phba: lpfc_hba pointer.
4018 * @val: link speed value.
4021 * If val is in a valid range [0,255], then set the adapter's initial
4022 * cfg_sriov_nr_virtfn field. If it's greater than the maximum, the maximum
4023 * number shall be used instead. It will be up to the driver's probe_one
4024 * routine to determine whether the device's SR-IOV is supported or not.
4027 * zero if val saved.
4028 * -EINVAL val out of range
4031 lpfc_sriov_nr_virtfn_init(struct lpfc_hba *phba, int val)
4033 if (val >= 0 && val <= LPFC_MAX_VFN_PER_PFN) {
4034 phba->cfg_sriov_nr_virtfn = val;
4038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4039 "3017 Enabling %d virtual functions is not "
4043 static DEVICE_ATTR(lpfc_sriov_nr_virtfn, S_IRUGO | S_IWUSR,
4044 lpfc_sriov_nr_virtfn_show, lpfc_sriov_nr_virtfn_store);
4047 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade
4049 * @dev: class device that is converted into a Scsi_host.
4050 * @attr: device attribute, not used.
4051 * @buf: containing the string the number of vfs to be enabled.
4052 * @count: unused variable.
4057 * length of the buf on success if val is in range the intended mode
4059 * -EINVAL if val out of range or intended mode is not supported.
4062 lpfc_request_firmware_upgrade_store(struct device *dev,
4063 struct device_attribute *attr,
4064 const char *buf, size_t count)
4066 struct Scsi_Host *shost = class_to_shost(dev);
4067 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4068 struct lpfc_hba *phba = vport->phba;
4069 int val = 0, rc = -EINVAL;
4071 /* Sanity check on user data */
4072 if (!isdigit(buf[0]))
4074 if (sscanf(buf, "%i", &val) != 1)
4079 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE);
4087 static int lpfc_req_fw_upgrade;
4088 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR);
4089 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade");
4090 lpfc_param_show(request_firmware_upgrade)
4093 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade
4094 * @phba: lpfc_hba pointer.
4098 * Set the initial Linux generic firmware upgrade enable or disable flag.
4101 * zero if val saved.
4102 * -EINVAL val out of range
4105 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val)
4107 if (val >= 0 && val <= 1) {
4108 phba->cfg_request_firmware_upgrade = val;
4113 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR,
4114 lpfc_request_firmware_upgrade_show,
4115 lpfc_request_firmware_upgrade_store);
4118 * lpfc_fcp_imax_store
4120 * @dev: class device that is converted into a Scsi_host.
4121 * @attr: device attribute, not used.
4122 * @buf: string with the number of fast-path FCP interrupts per second.
4123 * @count: unused variable.
4126 * If val is in a valid range [636,651042], then set the adapter's
4127 * maximum number of fast-path FCP interrupts per second.
4130 * length of the buf on success if val is in range the intended mode
4132 * -EINVAL if val out of range or intended mode is not supported.
4135 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
4136 const char *buf, size_t count)
4138 struct Scsi_Host *shost = class_to_shost(dev);
4139 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4140 struct lpfc_hba *phba = vport->phba;
4143 /* fcp_imax is only valid for SLI4 */
4144 if (phba->sli_rev != LPFC_SLI_REV4)
4147 /* Sanity check on user data */
4148 if (!isdigit(buf[0]))
4150 if (sscanf(buf, "%i", &val) != 1)
4154 * Value range for the HBA is [5000,5000000]
4155 * The value for each EQ depends on how many EQs are configured.
4157 if (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)
4160 phba->cfg_fcp_imax = (uint32_t)val;
4161 for (i = 0; i < phba->cfg_fcp_io_channel; i += LPFC_MAX_EQ_DELAY)
4162 lpfc_modify_fcp_eq_delay(phba, i);
4168 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
4171 # Value range is [5,000 to 5,000,000]. Default value is 50,000.
4173 static int lpfc_fcp_imax = LPFC_DEF_IMAX;
4174 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
4175 MODULE_PARM_DESC(lpfc_fcp_imax,
4176 "Set the maximum number of FCP interrupts per second per HBA");
4177 lpfc_param_show(fcp_imax)
4180 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable
4181 * @phba: lpfc_hba pointer.
4182 * @val: link speed value.
4185 * If val is in a valid range [636,651042], then initialize the adapter's
4186 * maximum number of fast-path FCP interrupts per second.
4189 * zero if val saved.
4190 * -EINVAL val out of range
4193 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
4195 if (phba->sli_rev != LPFC_SLI_REV4) {
4196 phba->cfg_fcp_imax = 0;
4200 if (val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) {
4201 phba->cfg_fcp_imax = val;
4205 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4206 "3016 fcp_imax: %d out of range, using default\n", val);
4207 phba->cfg_fcp_imax = LPFC_DEF_IMAX;
4212 static DEVICE_ATTR(lpfc_fcp_imax, S_IRUGO | S_IWUSR,
4213 lpfc_fcp_imax_show, lpfc_fcp_imax_store);
4216 * lpfc_state_show - Display current driver CPU affinity
4217 * @dev: class converted to a Scsi_host structure.
4218 * @attr: device attribute, not used.
4219 * @buf: on return contains text describing the state of the link.
4221 * Returns: size of formatted string.
4224 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr,
4227 struct Scsi_Host *shost = class_to_shost(dev);
4228 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4229 struct lpfc_hba *phba = vport->phba;
4230 struct lpfc_vector_map_info *cpup;
4233 if ((phba->sli_rev != LPFC_SLI_REV4) ||
4234 (phba->intr_type != MSIX))
4237 switch (phba->cfg_fcp_cpu_map) {
4239 len += snprintf(buf + len, PAGE_SIZE-len,
4240 "fcp_cpu_map: No mapping (%d)\n",
4241 phba->cfg_fcp_cpu_map);
4244 len += snprintf(buf + len, PAGE_SIZE-len,
4245 "fcp_cpu_map: HBA centric mapping (%d): "
4247 phba->cfg_fcp_cpu_map,
4248 phba->sli4_hba.num_online_cpu);
4251 len += snprintf(buf + len, PAGE_SIZE-len,
4252 "fcp_cpu_map: Driver centric mapping (%d): "
4254 phba->cfg_fcp_cpu_map,
4255 phba->sli4_hba.num_online_cpu);
4259 while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_present_cpu) {
4260 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
4262 /* margin should fit in this and the truncated message */
4263 if (cpup->irq == LPFC_VECTOR_MAP_EMPTY)
4264 len += snprintf(buf + len, PAGE_SIZE-len,
4265 "CPU %02d io_chan %02d "
4266 "physid %d coreid %d\n",
4267 phba->sli4_hba.curr_disp_cpu,
4268 cpup->channel_id, cpup->phys_id,
4271 len += snprintf(buf + len, PAGE_SIZE-len,
4272 "CPU %02d io_chan %02d "
4273 "physid %d coreid %d IRQ %d\n",
4274 phba->sli4_hba.curr_disp_cpu,
4275 cpup->channel_id, cpup->phys_id,
4276 cpup->core_id, cpup->irq);
4278 phba->sli4_hba.curr_disp_cpu++;
4280 /* display max number of CPUs keeping some margin */
4281 if (phba->sli4_hba.curr_disp_cpu <
4282 phba->sli4_hba.num_present_cpu &&
4283 (len >= (PAGE_SIZE - 64))) {
4284 len += snprintf(buf + len, PAGE_SIZE-len, "more...\n");
4289 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_present_cpu)
4290 phba->sli4_hba.curr_disp_cpu = 0;
4296 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors
4297 * @dev: class device that is converted into a Scsi_host.
4298 * @attr: device attribute, not used.
4299 * @buf: one or more lpfc_polling_flags values.
4303 * -EINVAL - Not implemented yet.
4306 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr,
4307 const char *buf, size_t count)
4309 int status = -EINVAL;
4314 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors
4317 # Value range is [0 to 2]. Default value is LPFC_DRIVER_CPU_MAP (2).
4318 # 0 - Do not affinitze IRQ vectors
4319 # 1 - Affintize HBA vectors with respect to each HBA
4320 # (start with CPU0 for each HBA)
4321 # 2 - Affintize HBA vectors with respect to the entire driver
4322 # (round robin thru all CPUs across all HBAs)
4324 static int lpfc_fcp_cpu_map = LPFC_DRIVER_CPU_MAP;
4325 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR);
4326 MODULE_PARM_DESC(lpfc_fcp_cpu_map,
4327 "Defines how to map CPUs to IRQ vectors per HBA");
4330 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable
4331 * @phba: lpfc_hba pointer.
4332 * @val: link speed value.
4335 * If val is in a valid range [0-2], then affinitze the adapter's
4339 * zero if val saved.
4340 * -EINVAL val out of range
4343 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val)
4345 if (phba->sli_rev != LPFC_SLI_REV4) {
4346 phba->cfg_fcp_cpu_map = 0;
4350 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) {
4351 phba->cfg_fcp_cpu_map = val;
4355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4356 "3326 fcp_cpu_map: %d out of range, using default\n",
4358 phba->cfg_fcp_cpu_map = LPFC_DRIVER_CPU_MAP;
4363 static DEVICE_ATTR(lpfc_fcp_cpu_map, S_IRUGO | S_IWUSR,
4364 lpfc_fcp_cpu_map_show, lpfc_fcp_cpu_map_store);
4367 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
4368 # Value range is [2,3]. Default value is 3.
4370 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
4371 "Select Fibre Channel class of service for FCP sequences");
4374 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
4375 # is [0,1]. Default value is 0.
4377 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
4378 "Use ADISC on rediscovery to authenticate FCP devices");
4381 # lpfc_first_burst_size: First burst size to use on the NPorts
4382 # that support first burst.
4383 # Value range is [0,65536]. Default value is 0.
4385 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536,
4386 "First burst size for Targets that support first burst");
4389 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
4390 # depth. Default value is 0. When the value of this parameter is zero the
4391 # SCSI command completion time is not used for controlling I/O queue depth. When
4392 # the parameter is set to a non-zero value, the I/O queue depth is controlled
4393 # to limit the I/O completion time to the parameter value.
4394 # The value is set in milliseconds.
4396 static int lpfc_max_scsicmpl_time;
4397 module_param(lpfc_max_scsicmpl_time, int, S_IRUGO);
4398 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
4399 "Use command completion time to control queue depth");
4400 lpfc_vport_param_show(max_scsicmpl_time);
4401 lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
4403 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
4405 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4406 struct lpfc_nodelist *ndlp, *next_ndlp;
4408 if (val == vport->cfg_max_scsicmpl_time)
4410 if ((val < 0) || (val > 60000))
4412 vport->cfg_max_scsicmpl_time = val;
4414 spin_lock_irq(shost->host_lock);
4415 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4416 if (!NLP_CHK_NODE_ACT(ndlp))
4418 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4420 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4422 spin_unlock_irq(shost->host_lock);
4425 lpfc_vport_param_store(max_scsicmpl_time);
4426 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
4427 lpfc_max_scsicmpl_time_show,
4428 lpfc_max_scsicmpl_time_store);
4431 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
4432 # range is [0,1]. Default value is 0.
4434 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
4437 # lpfc_fcp_io_sched: Determine scheduling algrithmn for issuing FCP cmds
4438 # range is [0,1]. Default value is 0.
4439 # For [0], FCP commands are issued to Work Queues ina round robin fashion.
4440 # For [1], FCP commands are issued to a Work Queue associated with the
4442 # It would be set to 1 by the driver if it's able to set up cpu affinity
4443 # for FCP I/Os through Work Queue associated with the current CPU. Otherwise,
4444 # roundrobin scheduling of FCP I/Os through WQs will be used.
4446 LPFC_ATTR_RW(fcp_io_sched, 0, 0, 1, "Determine scheduling algorithm for "
4447 "issuing commands [0] - Round Robin, [1] - Current CPU");
4450 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior
4451 # range is [0,1]. Default value is 0.
4452 # For [0], bus reset issues target reset to ALL devices
4453 # For [1], bus reset issues target reset to non-FCP2 devices
4455 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for "
4456 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset");
4460 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
4461 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
4462 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
4463 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
4464 # cr_delay is set to 0.
4466 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
4467 "interrupt response is generated");
4469 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
4470 "interrupt response is generated");
4473 # lpfc_multi_ring_support: Determines how many rings to spread available
4474 # cmd/rsp IOCB entries across.
4475 # Value range is [1,2]. Default value is 1.
4477 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
4478 "SLI rings to spread IOCB entries across");
4481 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
4482 # identifies what rctl value to configure the additional ring for.
4483 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
4485 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
4486 255, "Identifies RCTL for additional ring configuration");
4489 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
4490 # identifies what type value to configure the additional ring for.
4491 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
4493 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
4494 255, "Identifies TYPE for additional ring configuration");
4497 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN
4498 # 0 = SmartSAN functionality disabled (default)
4499 # 1 = SmartSAN functionality enabled
4500 # This parameter will override the value of lpfc_fdmi_on module parameter.
4501 # Value range is [0,1]. Default value is 0.
4503 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality");
4506 # lpfc_fdmi_on: Controls FDMI support.
4507 # 0 No FDMI support (default)
4508 # 1 Traditional FDMI support
4509 # Traditional FDMI support means the driver will assume FDMI-2 support;
4510 # however, if that fails, it will fallback to FDMI-1.
4511 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on.
4512 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of
4514 # Value range [0,1]. Default value is 0.
4516 LPFC_ATTR_R(fdmi_on, 0, 0, 1, "Enable FDMI support");
4519 # Specifies the maximum number of ELS cmds we can have outstanding (for
4520 # discovery). Value range is [1,64]. Default value = 32.
4522 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
4523 "during discovery");
4526 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that
4527 # will be scanned by the SCSI midlayer when sequential scanning is
4528 # used; and is also the highest LUN ID allowed when the SCSI midlayer
4529 # parses REPORT_LUN responses. The lpfc driver has no LUN count or
4530 # LUN ID limit, but the SCSI midlayer requires this field for the uses
4531 # above. The lpfc driver limits the default value to 255 for two reasons.
4532 # As it bounds the sequential scan loop, scanning for thousands of luns
4533 # on a target can take minutes of wall clock time. Additionally,
4534 # there are FC targets, such as JBODs, that only recognize 8-bits of
4535 # LUN ID. When they receive a value greater than 8 bits, they chop off
4536 # the high order bits. In other words, they see LUN IDs 0, 256, 512,
4537 # and so on all as LUN ID 0. This causes the linux kernel, which sees
4538 # valid responses at each of the LUN IDs, to believe there are multiple
4539 # devices present, when in fact, there is only 1.
4540 # A customer that is aware of their target behaviors, and the results as
4541 # indicated above, is welcome to increase the lpfc_max_luns value.
4542 # As mentioned, this value is not used by the lpfc driver, only the
4544 # Value range is [0,65535]. Default value is 255.
4545 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
4547 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID");
4550 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
4551 # Value range is [1,255], default value is 10.
4553 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
4554 "Milliseconds driver will wait between polling FCP ring");
4557 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands
4558 # to complete in seconds. Value range is [5,180], default value is 60.
4560 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180,
4561 "Maximum time to wait for task management commands to complete");
4563 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
4564 # support this feature
4567 # 2 = MSI-X enabled (default)
4568 # Value range is [0,2]. Default value is 2.
4570 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
4571 "MSI-X (2), if possible");
4574 # lpfc_fcp_io_channel: Set the number of FCP EQ/CQ/WQ IO channels
4576 # Value range is [1,7]. Default value is 4.
4578 LPFC_ATTR_R(fcp_io_channel, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
4579 LPFC_FCP_IO_CHAN_MAX,
4580 "Set the number of FCP I/O channels");
4583 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
4584 # 0 = HBA resets disabled
4585 # 1 = HBA resets enabled (default)
4586 # Value range is [0,1]. Default value is 1.
4588 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
4591 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
4592 # 0 = HBA Heartbeat disabled
4593 # 1 = HBA Heartbeat enabled (default)
4594 # Value range is [0,1]. Default value is 1.
4596 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
4599 # lpfc_EnableXLane: Enable Express Lane Feature
4600 # 0x0 Express Lane Feature disabled
4601 # 0x1 Express Lane Feature enabled
4602 # Value range is [0,1]. Default value is 0.
4604 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
4607 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature
4608 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits)
4609 # Value range is [0x0,0x7f]. Default value is 0
4611 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
4614 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
4615 # 0 = BlockGuard disabled (default)
4616 # 1 = BlockGuard enabled
4617 # Value range is [0,1]. Default value is 0.
4619 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
4622 # lpfc_fcp_look_ahead: Look ahead for completions in FCP start routine
4623 # 0 = disabled (default)
4625 # Value range is [0,1]. Default value is 0.
4627 # This feature in under investigation and may be supported in the future.
4629 unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF;
4633 # - Bit mask of host protection capabilities used to register with the
4635 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
4636 # - Allows you to ultimately specify which profiles to use
4637 # - Default will result in registering capabilities for all profiles.
4638 # - SHOST_DIF_TYPE1_PROTECTION 1
4639 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection
4640 # - SHOST_DIX_TYPE0_PROTECTION 8
4641 # HBA supports DIX Type 0: Host to HBA protection only
4642 # - SHOST_DIX_TYPE1_PROTECTION 16
4643 # HBA supports DIX Type 1: Host to HBA Type 1 protection
4646 LPFC_ATTR(prot_mask,
4647 (SHOST_DIF_TYPE1_PROTECTION |
4648 SHOST_DIX_TYPE0_PROTECTION |
4649 SHOST_DIX_TYPE1_PROTECTION),
4651 (SHOST_DIF_TYPE1_PROTECTION |
4652 SHOST_DIX_TYPE0_PROTECTION |
4653 SHOST_DIX_TYPE1_PROTECTION),
4654 "T10-DIF host protection capabilities mask");
4657 # lpfc_prot_guard: i
4658 # - Bit mask of protection guard types to register with the SCSI mid-layer
4659 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum
4660 # - Allows you to ultimately specify which profiles to use
4661 # - Default will result in registering capabilities for all guard types
4664 LPFC_ATTR(prot_guard,
4665 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP,
4666 "T10-DIF host protection guard type");
4669 * Delay initial NPort discovery when Clean Address bit is cleared in
4670 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
4671 * This parameter can have value 0 or 1.
4672 * When this parameter is set to 0, no delay is added to the initial
4674 * When this parameter is set to non-zero value, initial Nport discovery is
4675 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
4676 * accept and FCID/Fabric name/Fabric portname is changed.
4677 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
4678 * when Clean Address bit is cleared in FLOGI/FDISC
4679 * accept and FCID/Fabric name/Fabric portname is changed.
4680 * Default value is 0.
4682 LPFC_ATTR(delay_discovery, 0, 0, 1,
4683 "Delay NPort discovery when Clean Address bit is cleared.");
4686 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
4687 * This value can be set to values between 64 and 4096. The default value is
4688 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
4689 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
4690 * Because of the additional overhead involved in setting up T10-DIF,
4691 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4
4692 * and will be limited to 512 if BlockGuard is enabled under SLI3.
4694 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
4695 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
4698 * This parameter will be depricated, the driver cannot limit the
4699 * protection data s/g list.
4701 LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT,
4702 LPFC_DEFAULT_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT,
4703 "Max Protection Scatter Gather Segment Count");
4706 * lpfc_enable_mds_diags: Enable MDS Diagnostics
4707 * 0 = MDS Diagnostics disabled (default)
4708 * 1 = MDS Diagnostics enabled
4709 * Value range is [0,1]. Default value is 0.
4711 LPFC_ATTR_R(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics");
4713 struct device_attribute *lpfc_hba_attrs[] = {
4715 &dev_attr_bg_guard_err,
4716 &dev_attr_bg_apptag_err,
4717 &dev_attr_bg_reftag_err,
4719 &dev_attr_serialnum,
4720 &dev_attr_modeldesc,
4721 &dev_attr_modelname,
4722 &dev_attr_programtype,
4726 &dev_attr_option_rom_version,
4727 &dev_attr_link_state,
4728 &dev_attr_num_discovered_ports,
4729 &dev_attr_menlo_mgmt_mode,
4730 &dev_attr_lpfc_drvr_version,
4731 &dev_attr_lpfc_enable_fip,
4732 &dev_attr_lpfc_temp_sensor,
4733 &dev_attr_lpfc_log_verbose,
4734 &dev_attr_lpfc_lun_queue_depth,
4735 &dev_attr_lpfc_tgt_queue_depth,
4736 &dev_attr_lpfc_hba_queue_depth,
4737 &dev_attr_lpfc_peer_port_login,
4738 &dev_attr_lpfc_nodev_tmo,
4739 &dev_attr_lpfc_devloss_tmo,
4740 &dev_attr_lpfc_fcp_class,
4741 &dev_attr_lpfc_use_adisc,
4742 &dev_attr_lpfc_first_burst_size,
4743 &dev_attr_lpfc_ack0,
4744 &dev_attr_lpfc_topology,
4745 &dev_attr_lpfc_scan_down,
4746 &dev_attr_lpfc_link_speed,
4747 &dev_attr_lpfc_fcp_io_sched,
4748 &dev_attr_lpfc_fcp2_no_tgt_reset,
4749 &dev_attr_lpfc_cr_delay,
4750 &dev_attr_lpfc_cr_count,
4751 &dev_attr_lpfc_multi_ring_support,
4752 &dev_attr_lpfc_multi_ring_rctl,
4753 &dev_attr_lpfc_multi_ring_type,
4754 &dev_attr_lpfc_fdmi_on,
4755 &dev_attr_lpfc_enable_SmartSAN,
4756 &dev_attr_lpfc_max_luns,
4757 &dev_attr_lpfc_enable_npiv,
4758 &dev_attr_lpfc_fcf_failover_policy,
4759 &dev_attr_lpfc_enable_rrq,
4760 &dev_attr_nport_evt_cnt,
4761 &dev_attr_board_mode,
4768 &dev_attr_npiv_info,
4769 &dev_attr_issue_reset,
4770 &dev_attr_lpfc_poll,
4771 &dev_attr_lpfc_poll_tmo,
4772 &dev_attr_lpfc_task_mgmt_tmo,
4773 &dev_attr_lpfc_use_msi,
4774 &dev_attr_lpfc_fcp_imax,
4775 &dev_attr_lpfc_fcp_cpu_map,
4776 &dev_attr_lpfc_fcp_io_channel,
4777 &dev_attr_lpfc_enable_bg,
4778 &dev_attr_lpfc_soft_wwnn,
4779 &dev_attr_lpfc_soft_wwpn,
4780 &dev_attr_lpfc_soft_wwn_enable,
4781 &dev_attr_lpfc_enable_hba_reset,
4782 &dev_attr_lpfc_enable_hba_heartbeat,
4783 &dev_attr_lpfc_EnableXLane,
4784 &dev_attr_lpfc_XLanePriority,
4785 &dev_attr_lpfc_xlane_lun,
4786 &dev_attr_lpfc_xlane_tgt,
4787 &dev_attr_lpfc_xlane_vpt,
4788 &dev_attr_lpfc_xlane_lun_state,
4789 &dev_attr_lpfc_xlane_lun_status,
4790 &dev_attr_lpfc_xlane_priority,
4791 &dev_attr_lpfc_sg_seg_cnt,
4792 &dev_attr_lpfc_max_scsicmpl_time,
4793 &dev_attr_lpfc_stat_data_ctrl,
4794 &dev_attr_lpfc_prot_sg_seg_cnt,
4795 &dev_attr_lpfc_aer_support,
4796 &dev_attr_lpfc_aer_state_cleanup,
4797 &dev_attr_lpfc_sriov_nr_virtfn,
4798 &dev_attr_lpfc_req_fw_upgrade,
4799 &dev_attr_lpfc_suppress_link_up,
4800 &dev_attr_lpfc_iocb_cnt,
4803 &dev_attr_txcmplq_hw,
4804 &dev_attr_lpfc_fips_level,
4805 &dev_attr_lpfc_fips_rev,
4807 &dev_attr_lpfc_sriov_hw_max_virtfn,
4809 &dev_attr_lpfc_xlane_supported,
4810 &dev_attr_lpfc_enable_mds_diags,
4814 struct device_attribute *lpfc_vport_attrs[] = {
4816 &dev_attr_link_state,
4817 &dev_attr_num_discovered_ports,
4818 &dev_attr_lpfc_drvr_version,
4819 &dev_attr_lpfc_log_verbose,
4820 &dev_attr_lpfc_lun_queue_depth,
4821 &dev_attr_lpfc_tgt_queue_depth,
4822 &dev_attr_lpfc_nodev_tmo,
4823 &dev_attr_lpfc_devloss_tmo,
4824 &dev_attr_lpfc_hba_queue_depth,
4825 &dev_attr_lpfc_peer_port_login,
4826 &dev_attr_lpfc_restrict_login,
4827 &dev_attr_lpfc_fcp_class,
4828 &dev_attr_lpfc_use_adisc,
4829 &dev_attr_lpfc_first_burst_size,
4830 &dev_attr_lpfc_max_luns,
4831 &dev_attr_nport_evt_cnt,
4832 &dev_attr_npiv_info,
4833 &dev_attr_lpfc_enable_da_id,
4834 &dev_attr_lpfc_max_scsicmpl_time,
4835 &dev_attr_lpfc_stat_data_ctrl,
4836 &dev_attr_lpfc_static_vport,
4837 &dev_attr_lpfc_fips_level,
4838 &dev_attr_lpfc_fips_rev,
4843 * sysfs_ctlreg_write - Write method for writing to ctlreg
4844 * @filp: open sysfs file
4845 * @kobj: kernel kobject that contains the kernel class device.
4846 * @bin_attr: kernel attributes passed to us.
4847 * @buf: contains the data to be written to the adapter IOREG space.
4848 * @off: offset into buffer to beginning of data.
4849 * @count: bytes to transfer.
4852 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
4853 * Uses the adapter io control registers to send buf contents to the adapter.
4856 * -ERANGE off and count combo out of range
4857 * -EINVAL off, count or buff address invalid
4858 * -EPERM adapter is offline
4859 * value of count, buf contents written
4862 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
4863 struct bin_attribute *bin_attr,
4864 char *buf, loff_t off, size_t count)
4867 struct device *dev = container_of(kobj, struct device, kobj);
4868 struct Scsi_Host *shost = class_to_shost(dev);
4869 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4870 struct lpfc_hba *phba = vport->phba;
4872 if (phba->sli_rev >= LPFC_SLI_REV4)
4875 if ((off + count) > FF_REG_AREA_SIZE)
4878 if (count <= LPFC_REG_WRITE_KEY_SIZE)
4881 if (off % 4 || count % 4 || (unsigned long)buf % 4)
4884 /* This is to protect HBA registers from accidental writes. */
4885 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE))
4888 if (!(vport->fc_flag & FC_OFFLINE_MODE))
4891 spin_lock_irq(&phba->hbalock);
4892 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE;
4893 buf_off += sizeof(uint32_t))
4894 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)),
4895 phba->ctrl_regs_memmap_p + off + buf_off);
4897 spin_unlock_irq(&phba->hbalock);
4903 * sysfs_ctlreg_read - Read method for reading from ctlreg
4904 * @filp: open sysfs file
4905 * @kobj: kernel kobject that contains the kernel class device.
4906 * @bin_attr: kernel attributes passed to us.
4907 * @buf: if successful contains the data from the adapter IOREG space.
4908 * @off: offset into buffer to beginning of data.
4909 * @count: bytes to transfer.
4912 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
4913 * Uses the adapter io control registers to read data into buf.
4916 * -ERANGE off and count combo out of range
4917 * -EINVAL off, count or buff address invalid
4918 * value of count, buf contents read
4921 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
4922 struct bin_attribute *bin_attr,
4923 char *buf, loff_t off, size_t count)
4927 struct device *dev = container_of(kobj, struct device, kobj);
4928 struct Scsi_Host *shost = class_to_shost(dev);
4929 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4930 struct lpfc_hba *phba = vport->phba;
4932 if (phba->sli_rev >= LPFC_SLI_REV4)
4935 if (off > FF_REG_AREA_SIZE)
4938 if ((off + count) > FF_REG_AREA_SIZE)
4939 count = FF_REG_AREA_SIZE - off;
4941 if (count == 0) return 0;
4943 if (off % 4 || count % 4 || (unsigned long)buf % 4)
4946 spin_lock_irq(&phba->hbalock);
4948 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
4949 tmp_ptr = (uint32_t *)(buf + buf_off);
4950 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
4953 spin_unlock_irq(&phba->hbalock);
4958 static struct bin_attribute sysfs_ctlreg_attr = {
4961 .mode = S_IRUSR | S_IWUSR,
4964 .read = sysfs_ctlreg_read,
4965 .write = sysfs_ctlreg_write,
4969 * sysfs_mbox_write - Write method for writing information via mbox
4970 * @filp: open sysfs file
4971 * @kobj: kernel kobject that contains the kernel class device.
4972 * @bin_attr: kernel attributes passed to us.
4973 * @buf: contains the data to be written to sysfs mbox.
4974 * @off: offset into buffer to beginning of data.
4975 * @count: bytes to transfer.
4978 * Deprecated function. All mailbox access from user space is performed via the
4982 * -EPERM operation not permitted
4985 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
4986 struct bin_attribute *bin_attr,
4987 char *buf, loff_t off, size_t count)
4993 * sysfs_mbox_read - Read method for reading information via mbox
4994 * @filp: open sysfs file
4995 * @kobj: kernel kobject that contains the kernel class device.
4996 * @bin_attr: kernel attributes passed to us.
4997 * @buf: contains the data to be read from sysfs mbox.
4998 * @off: offset into buffer to beginning of data.
4999 * @count: bytes to transfer.
5002 * Deprecated function. All mailbox access from user space is performed via the
5006 * -EPERM operation not permitted
5009 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
5010 struct bin_attribute *bin_attr,
5011 char *buf, loff_t off, size_t count)
5016 static struct bin_attribute sysfs_mbox_attr = {
5019 .mode = S_IRUSR | S_IWUSR,
5021 .size = MAILBOX_SYSFS_MAX,
5022 .read = sysfs_mbox_read,
5023 .write = sysfs_mbox_write,
5027 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
5028 * @vport: address of lpfc vport structure.
5032 * error return code from sysfs_create_bin_file()
5035 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
5037 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5040 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5041 &sysfs_drvr_stat_data_attr);
5043 /* Virtual ports do not need ctrl_reg and mbox */
5044 if (error || vport->port_type == LPFC_NPIV_PORT)
5047 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5048 &sysfs_ctlreg_attr);
5050 goto out_remove_stat_attr;
5052 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5055 goto out_remove_ctlreg_attr;
5058 out_remove_ctlreg_attr:
5059 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
5060 out_remove_stat_attr:
5061 sysfs_remove_bin_file(&shost->shost_dev.kobj,
5062 &sysfs_drvr_stat_data_attr);
5068 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
5069 * @vport: address of lpfc vport structure.
5072 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
5074 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5075 sysfs_remove_bin_file(&shost->shost_dev.kobj,
5076 &sysfs_drvr_stat_data_attr);
5077 /* Virtual ports do not need ctrl_reg and mbox */
5078 if (vport->port_type == LPFC_NPIV_PORT)
5080 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
5081 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
5085 * Dynamic FC Host Attributes Support
5089 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
5090 * @shost: kernel scsi host pointer.
5093 lpfc_get_host_port_id(struct Scsi_Host *shost)
5095 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5097 /* note: fc_myDID already in cpu endianness */
5098 fc_host_port_id(shost) = vport->fc_myDID;
5102 * lpfc_get_host_port_type - Set the value of the scsi host port type
5103 * @shost: kernel scsi host pointer.
5106 lpfc_get_host_port_type(struct Scsi_Host *shost)
5108 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5109 struct lpfc_hba *phba = vport->phba;
5111 spin_lock_irq(shost->host_lock);
5113 if (vport->port_type == LPFC_NPIV_PORT) {
5114 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
5115 } else if (lpfc_is_link_up(phba)) {
5116 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5117 if (vport->fc_flag & FC_PUBLIC_LOOP)
5118 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
5120 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
5122 if (vport->fc_flag & FC_FABRIC)
5123 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
5125 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
5128 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
5130 spin_unlock_irq(shost->host_lock);
5134 * lpfc_get_host_port_state - Set the value of the scsi host port state
5135 * @shost: kernel scsi host pointer.
5138 lpfc_get_host_port_state(struct Scsi_Host *shost)
5140 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5141 struct lpfc_hba *phba = vport->phba;
5143 spin_lock_irq(shost->host_lock);
5145 if (vport->fc_flag & FC_OFFLINE_MODE)
5146 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
5148 switch (phba->link_state) {
5149 case LPFC_LINK_UNKNOWN:
5150 case LPFC_LINK_DOWN:
5151 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
5155 case LPFC_HBA_READY:
5156 /* Links up, reports port state accordingly */
5157 if (vport->port_state < LPFC_VPORT_READY)
5158 fc_host_port_state(shost) =
5159 FC_PORTSTATE_BYPASSED;
5161 fc_host_port_state(shost) =
5162 FC_PORTSTATE_ONLINE;
5164 case LPFC_HBA_ERROR:
5165 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
5168 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
5173 spin_unlock_irq(shost->host_lock);
5177 * lpfc_get_host_speed - Set the value of the scsi host speed
5178 * @shost: kernel scsi host pointer.
5181 lpfc_get_host_speed(struct Scsi_Host *shost)
5183 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5184 struct lpfc_hba *phba = vport->phba;
5186 spin_lock_irq(shost->host_lock);
5188 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) {
5189 switch(phba->fc_linkspeed) {
5190 case LPFC_LINK_SPEED_1GHZ:
5191 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
5193 case LPFC_LINK_SPEED_2GHZ:
5194 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
5196 case LPFC_LINK_SPEED_4GHZ:
5197 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
5199 case LPFC_LINK_SPEED_8GHZ:
5200 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
5202 case LPFC_LINK_SPEED_10GHZ:
5203 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
5205 case LPFC_LINK_SPEED_16GHZ:
5206 fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
5208 case LPFC_LINK_SPEED_32GHZ:
5209 fc_host_speed(shost) = FC_PORTSPEED_32GBIT;
5212 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
5216 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
5218 spin_unlock_irq(shost->host_lock);
5222 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
5223 * @shost: kernel scsi host pointer.
5226 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
5228 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5229 struct lpfc_hba *phba = vport->phba;
5232 spin_lock_irq(shost->host_lock);
5234 if ((vport->port_state > LPFC_FLOGI) &&
5235 ((vport->fc_flag & FC_FABRIC) ||
5236 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
5237 (vport->fc_flag & FC_PUBLIC_LOOP))))
5238 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
5240 /* fabric is local port if there is no F/FL_Port */
5243 spin_unlock_irq(shost->host_lock);
5245 fc_host_fabric_name(shost) = node_name;
5249 * lpfc_get_stats - Return statistical information about the adapter
5250 * @shost: kernel scsi host pointer.
5253 * NULL on error for link down, no mbox pool, sli2 active,
5254 * management not allowed, memory allocation error, or mbox error.
5258 * address of the adapter host statistics
5260 static struct fc_host_statistics *
5261 lpfc_get_stats(struct Scsi_Host *shost)
5263 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5264 struct lpfc_hba *phba = vport->phba;
5265 struct lpfc_sli *psli = &phba->sli;
5266 struct fc_host_statistics *hs = &phba->link_stats;
5267 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
5268 LPFC_MBOXQ_t *pmboxq;
5270 unsigned long seconds;
5274 * prevent udev from issuing mailbox commands until the port is
5277 if (phba->link_state < LPFC_LINK_DOWN ||
5278 !phba->mbox_mem_pool ||
5279 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
5282 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
5285 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5288 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
5290 pmb = &pmboxq->u.mb;
5291 pmb->mbxCommand = MBX_READ_STATUS;
5292 pmb->mbxOwner = OWN_HOST;
5293 pmboxq->context1 = NULL;
5294 pmboxq->vport = vport;
5296 if (vport->fc_flag & FC_OFFLINE_MODE)
5297 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5299 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5301 if (rc != MBX_SUCCESS) {
5302 if (rc != MBX_TIMEOUT)
5303 mempool_free(pmboxq, phba->mbox_mem_pool);
5307 memset(hs, 0, sizeof (struct fc_host_statistics));
5309 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
5311 * The MBX_READ_STATUS returns tx_k_bytes which has to
5312 * converted to words
5314 hs->tx_words = (uint64_t)
5315 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt
5317 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
5318 hs->rx_words = (uint64_t)
5319 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt
5322 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
5323 pmb->mbxCommand = MBX_READ_LNK_STAT;
5324 pmb->mbxOwner = OWN_HOST;
5325 pmboxq->context1 = NULL;
5326 pmboxq->vport = vport;
5328 if (vport->fc_flag & FC_OFFLINE_MODE)
5329 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5331 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5333 if (rc != MBX_SUCCESS) {
5334 if (rc != MBX_TIMEOUT)
5335 mempool_free(pmboxq, phba->mbox_mem_pool);
5339 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
5340 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
5341 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
5342 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
5343 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
5344 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
5345 hs->error_frames = pmb->un.varRdLnk.crcCnt;
5347 hs->link_failure_count -= lso->link_failure_count;
5348 hs->loss_of_sync_count -= lso->loss_of_sync_count;
5349 hs->loss_of_signal_count -= lso->loss_of_signal_count;
5350 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
5351 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
5352 hs->invalid_crc_count -= lso->invalid_crc_count;
5353 hs->error_frames -= lso->error_frames;
5355 if (phba->hba_flag & HBA_FCOE_MODE) {
5357 hs->nos_count = (phba->link_events >> 1);
5358 hs->nos_count -= lso->link_events;
5359 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5360 hs->lip_count = (phba->fc_eventTag >> 1);
5361 hs->lip_count -= lso->link_events;
5365 hs->nos_count = (phba->fc_eventTag >> 1);
5366 hs->nos_count -= lso->link_events;
5369 hs->dumped_frames = -1;
5371 seconds = get_seconds();
5372 if (seconds < psli->stats_start)
5373 hs->seconds_since_last_reset = seconds +
5374 ((unsigned long)-1 - psli->stats_start);
5376 hs->seconds_since_last_reset = seconds - psli->stats_start;
5378 mempool_free(pmboxq, phba->mbox_mem_pool);
5384 * lpfc_reset_stats - Copy the adapter link stats information
5385 * @shost: kernel scsi host pointer.
5388 lpfc_reset_stats(struct Scsi_Host *shost)
5390 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5391 struct lpfc_hba *phba = vport->phba;
5392 struct lpfc_sli *psli = &phba->sli;
5393 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
5394 LPFC_MBOXQ_t *pmboxq;
5398 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
5401 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5404 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
5406 pmb = &pmboxq->u.mb;
5407 pmb->mbxCommand = MBX_READ_STATUS;
5408 pmb->mbxOwner = OWN_HOST;
5409 pmb->un.varWords[0] = 0x1; /* reset request */
5410 pmboxq->context1 = NULL;
5411 pmboxq->vport = vport;
5413 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
5414 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
5415 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5417 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5419 if (rc != MBX_SUCCESS) {
5420 if (rc != MBX_TIMEOUT)
5421 mempool_free(pmboxq, phba->mbox_mem_pool);
5425 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
5426 pmb->mbxCommand = MBX_READ_LNK_STAT;
5427 pmb->mbxOwner = OWN_HOST;
5428 pmboxq->context1 = NULL;
5429 pmboxq->vport = vport;
5431 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
5432 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
5433 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5435 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5437 if (rc != MBX_SUCCESS) {
5438 if (rc != MBX_TIMEOUT)
5439 mempool_free( pmboxq, phba->mbox_mem_pool);
5443 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
5444 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
5445 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
5446 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
5447 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
5448 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
5449 lso->error_frames = pmb->un.varRdLnk.crcCnt;
5450 if (phba->hba_flag & HBA_FCOE_MODE)
5451 lso->link_events = (phba->link_events >> 1);
5453 lso->link_events = (phba->fc_eventTag >> 1);
5455 psli->stats_start = get_seconds();
5457 mempool_free(pmboxq, phba->mbox_mem_pool);
5463 * The LPFC driver treats linkdown handling as target loss events so there
5464 * are no sysfs handlers for link_down_tmo.
5468 * lpfc_get_node_by_target - Return the nodelist for a target
5469 * @starget: kernel scsi target pointer.
5472 * address of the node list if found
5473 * NULL target not found
5475 static struct lpfc_nodelist *
5476 lpfc_get_node_by_target(struct scsi_target *starget)
5478 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
5479 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5480 struct lpfc_nodelist *ndlp;
5482 spin_lock_irq(shost->host_lock);
5483 /* Search for this, mapped, target ID */
5484 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5485 if (NLP_CHK_NODE_ACT(ndlp) &&
5486 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
5487 starget->id == ndlp->nlp_sid) {
5488 spin_unlock_irq(shost->host_lock);
5492 spin_unlock_irq(shost->host_lock);
5497 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
5498 * @starget: kernel scsi target pointer.
5501 lpfc_get_starget_port_id(struct scsi_target *starget)
5503 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5505 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
5509 * lpfc_get_starget_node_name - Set the target node name
5510 * @starget: kernel scsi target pointer.
5512 * Description: Set the target node name to the ndlp node name wwn or zero.
5515 lpfc_get_starget_node_name(struct scsi_target *starget)
5517 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5519 fc_starget_node_name(starget) =
5520 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
5524 * lpfc_get_starget_port_name - Set the target port name
5525 * @starget: kernel scsi target pointer.
5527 * Description: set the target port name to the ndlp port name wwn or zero.
5530 lpfc_get_starget_port_name(struct scsi_target *starget)
5532 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5534 fc_starget_port_name(starget) =
5535 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
5539 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
5540 * @rport: fc rport address.
5541 * @timeout: new value for dev loss tmo.
5544 * If timeout is non zero set the dev_loss_tmo to timeout, else set
5545 * dev_loss_tmo to one.
5548 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
5551 rport->dev_loss_tmo = timeout;
5553 rport->dev_loss_tmo = 1;
5557 * lpfc_rport_show_function - Return rport target information
5560 * Macro that uses field to generate a function with the name lpfc_show_rport_
5562 * lpfc_show_rport_##field: returns the bytes formatted in buf
5563 * @cdev: class converted to an fc_rport.
5564 * @buf: on return contains the target_field or zero.
5566 * Returns: size of formatted string.
5568 #define lpfc_rport_show_function(field, format_string, sz, cast) \
5570 lpfc_show_rport_##field (struct device *dev, \
5571 struct device_attribute *attr, \
5574 struct fc_rport *rport = transport_class_to_rport(dev); \
5575 struct lpfc_rport_data *rdata = rport->hostdata; \
5576 return snprintf(buf, sz, format_string, \
5577 (rdata->target) ? cast rdata->target->field : 0); \
5580 #define lpfc_rport_rd_attr(field, format_string, sz) \
5581 lpfc_rport_show_function(field, format_string, sz, ) \
5582 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
5585 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
5586 * @fc_vport: The fc_vport who's symbolic name has been changed.
5589 * This function is called by the transport after the @fc_vport's symbolic name
5590 * has been changed. This function re-registers the symbolic name with the
5591 * switch to propagate the change into the fabric if the vport is active.
5594 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
5596 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
5598 if (vport->port_state == LPFC_VPORT_READY)
5599 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
5603 * lpfc_hba_log_verbose_init - Set hba's log verbose level
5604 * @phba: Pointer to lpfc_hba struct.
5606 * This function is called by the lpfc_get_cfgparam() routine to set the
5607 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
5608 * log message according to the module's lpfc_log_verbose parameter setting
5609 * before hba port or vport created.
5612 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
5614 phba->cfg_log_verbose = verbose;
5617 struct fc_function_template lpfc_transport_functions = {
5618 /* fixed attributes the driver supports */
5619 .show_host_node_name = 1,
5620 .show_host_port_name = 1,
5621 .show_host_supported_classes = 1,
5622 .show_host_supported_fc4s = 1,
5623 .show_host_supported_speeds = 1,
5624 .show_host_maxframe_size = 1,
5625 .show_host_symbolic_name = 1,
5627 /* dynamic attributes the driver supports */
5628 .get_host_port_id = lpfc_get_host_port_id,
5629 .show_host_port_id = 1,
5631 .get_host_port_type = lpfc_get_host_port_type,
5632 .show_host_port_type = 1,
5634 .get_host_port_state = lpfc_get_host_port_state,
5635 .show_host_port_state = 1,
5637 /* active_fc4s is shown but doesn't change (thus no get function) */
5638 .show_host_active_fc4s = 1,
5640 .get_host_speed = lpfc_get_host_speed,
5641 .show_host_speed = 1,
5643 .get_host_fabric_name = lpfc_get_host_fabric_name,
5644 .show_host_fabric_name = 1,
5647 * The LPFC driver treats linkdown handling as target loss events
5648 * so there are no sysfs handlers for link_down_tmo.
5651 .get_fc_host_stats = lpfc_get_stats,
5652 .reset_fc_host_stats = lpfc_reset_stats,
5654 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
5655 .show_rport_maxframe_size = 1,
5656 .show_rport_supported_classes = 1,
5658 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
5659 .show_rport_dev_loss_tmo = 1,
5661 .get_starget_port_id = lpfc_get_starget_port_id,
5662 .show_starget_port_id = 1,
5664 .get_starget_node_name = lpfc_get_starget_node_name,
5665 .show_starget_node_name = 1,
5667 .get_starget_port_name = lpfc_get_starget_port_name,
5668 .show_starget_port_name = 1,
5670 .issue_fc_host_lip = lpfc_issue_lip,
5671 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
5672 .terminate_rport_io = lpfc_terminate_rport_io,
5674 .dd_fcvport_size = sizeof(struct lpfc_vport *),
5676 .vport_disable = lpfc_vport_disable,
5678 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
5680 .bsg_request = lpfc_bsg_request,
5681 .bsg_timeout = lpfc_bsg_timeout,
5684 struct fc_function_template lpfc_vport_transport_functions = {
5685 /* fixed attributes the driver supports */
5686 .show_host_node_name = 1,
5687 .show_host_port_name = 1,
5688 .show_host_supported_classes = 1,
5689 .show_host_supported_fc4s = 1,
5690 .show_host_supported_speeds = 1,
5691 .show_host_maxframe_size = 1,
5692 .show_host_symbolic_name = 1,
5694 /* dynamic attributes the driver supports */
5695 .get_host_port_id = lpfc_get_host_port_id,
5696 .show_host_port_id = 1,
5698 .get_host_port_type = lpfc_get_host_port_type,
5699 .show_host_port_type = 1,
5701 .get_host_port_state = lpfc_get_host_port_state,
5702 .show_host_port_state = 1,
5704 /* active_fc4s is shown but doesn't change (thus no get function) */
5705 .show_host_active_fc4s = 1,
5707 .get_host_speed = lpfc_get_host_speed,
5708 .show_host_speed = 1,
5710 .get_host_fabric_name = lpfc_get_host_fabric_name,
5711 .show_host_fabric_name = 1,
5714 * The LPFC driver treats linkdown handling as target loss events
5715 * so there are no sysfs handlers for link_down_tmo.
5718 .get_fc_host_stats = lpfc_get_stats,
5719 .reset_fc_host_stats = lpfc_reset_stats,
5721 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
5722 .show_rport_maxframe_size = 1,
5723 .show_rport_supported_classes = 1,
5725 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
5726 .show_rport_dev_loss_tmo = 1,
5728 .get_starget_port_id = lpfc_get_starget_port_id,
5729 .show_starget_port_id = 1,
5731 .get_starget_node_name = lpfc_get_starget_node_name,
5732 .show_starget_node_name = 1,
5734 .get_starget_port_name = lpfc_get_starget_port_name,
5735 .show_starget_port_name = 1,
5737 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
5738 .terminate_rport_io = lpfc_terminate_rport_io,
5740 .vport_disable = lpfc_vport_disable,
5742 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
5746 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
5747 * @phba: lpfc_hba pointer.
5750 lpfc_get_cfgparam(struct lpfc_hba *phba)
5752 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched);
5753 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset);
5754 lpfc_cr_delay_init(phba, lpfc_cr_delay);
5755 lpfc_cr_count_init(phba, lpfc_cr_count);
5756 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
5757 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
5758 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
5759 lpfc_ack0_init(phba, lpfc_ack0);
5760 lpfc_topology_init(phba, lpfc_topology);
5761 lpfc_link_speed_init(phba, lpfc_link_speed);
5762 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
5763 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo);
5764 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
5765 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
5766 lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
5767 lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
5768 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN);
5769 lpfc_use_msi_init(phba, lpfc_use_msi);
5770 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
5771 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map);
5772 lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel);
5773 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
5774 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
5775 lpfc_EnableXLane_init(phba, lpfc_EnableXLane);
5776 if (phba->sli_rev != LPFC_SLI_REV4)
5777 phba->cfg_EnableXLane = 0;
5778 lpfc_XLanePriority_init(phba, lpfc_XLanePriority);
5779 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t)));
5780 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t)));
5781 phba->cfg_oas_lun_state = 0;
5782 phba->cfg_oas_lun_status = 0;
5783 phba->cfg_oas_flags = 0;
5784 phba->cfg_oas_priority = 0;
5785 lpfc_enable_bg_init(phba, lpfc_enable_bg);
5786 lpfc_prot_mask_init(phba, lpfc_prot_mask);
5787 lpfc_prot_guard_init(phba, lpfc_prot_guard);
5788 if (phba->sli_rev == LPFC_SLI_REV4)
5791 phba->cfg_poll = lpfc_poll;
5793 phba->cfg_soft_wwnn = 0L;
5794 phba->cfg_soft_wwpn = 0L;
5795 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
5796 lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
5797 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
5798 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
5799 lpfc_aer_support_init(phba, lpfc_aer_support);
5800 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
5801 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade);
5802 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
5803 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
5804 lpfc_delay_discovery_init(phba, lpfc_delay_discovery);
5805 lpfc_sli_mode_init(phba, lpfc_sli_mode);
5806 phba->cfg_enable_dss = 1;
5807 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags);
5812 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
5813 * @vport: lpfc_vport pointer.
5816 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
5818 lpfc_log_verbose_init(vport, lpfc_log_verbose);
5819 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
5820 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
5821 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
5822 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
5823 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
5824 lpfc_restrict_login_init(vport, lpfc_restrict_login);
5825 lpfc_fcp_class_init(vport, lpfc_fcp_class);
5826 lpfc_use_adisc_init(vport, lpfc_use_adisc);
5827 lpfc_first_burst_size_init(vport, lpfc_first_burst_size);
5828 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
5829 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
5830 lpfc_max_luns_init(vport, lpfc_max_luns);
5831 lpfc_scan_down_init(vport, lpfc_scan_down);
5832 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);