1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2011 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/ctype.h>
23 #include <linux/delay.h>
24 #include <linux/pci.h>
25 #include <linux/interrupt.h>
26 #include <linux/aer.h>
27 #include <linux/gfp.h>
28 #include <linux/kernel.h>
30 #include <scsi/scsi.h>
31 #include <scsi/scsi_device.h>
32 #include <scsi/scsi_host.h>
33 #include <scsi/scsi_tcq.h>
34 #include <scsi/scsi_transport_fc.h>
35 #include <scsi/fc/fc_fs.h>
40 #include "lpfc_sli4.h"
42 #include "lpfc_disc.h"
43 #include "lpfc_scsi.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_version.h"
47 #include "lpfc_compat.h"
48 #include "lpfc_crtn.h"
49 #include "lpfc_vport.h"
51 #define LPFC_DEF_DEVLOSS_TMO 30
52 #define LPFC_MIN_DEVLOSS_TMO 1
53 #define LPFC_MAX_DEVLOSS_TMO 255
56 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
57 * @incr: integer to convert.
58 * @hdw: ascii string holding converted integer plus a string terminator.
61 * JEDEC Joint Electron Device Engineering Council.
62 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
63 * character string. The string is then terminated with a NULL in byte 9.
64 * Hex 0-9 becomes ascii '0' to '9'.
65 * Hex a-f becomes ascii '=' to 'B' capital B.
68 * Coded for 32 bit integers only.
71 lpfc_jedec_to_ascii(int incr, char hdw[])
74 for (i = 0; i < 8; i++) {
77 hdw[7 - i] = 0x30 + j;
79 hdw[7 - i] = 0x61 + j - 10;
87 * lpfc_drvr_version_show - Return the Emulex driver string with version number
88 * @dev: class unused variable.
89 * @attr: device attribute, not used.
90 * @buf: on return contains the module description text.
92 * Returns: size of formatted string.
95 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
98 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
102 * lpfc_enable_fip_show - Return the fip mode of the HBA
103 * @dev: class unused variable.
104 * @attr: device attribute, not used.
105 * @buf: on return contains the module description text.
107 * Returns: size of formatted string.
110 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
113 struct Scsi_Host *shost = class_to_shost(dev);
114 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
115 struct lpfc_hba *phba = vport->phba;
117 if (phba->hba_flag & HBA_FIP_SUPPORT)
118 return snprintf(buf, PAGE_SIZE, "1\n");
120 return snprintf(buf, PAGE_SIZE, "0\n");
124 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
127 struct Scsi_Host *shost = class_to_shost(dev);
128 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
129 struct lpfc_hba *phba = vport->phba;
131 if (phba->cfg_enable_bg)
132 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
133 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
135 return snprintf(buf, PAGE_SIZE,
136 "BlockGuard Not Supported\n");
138 return snprintf(buf, PAGE_SIZE,
139 "BlockGuard Disabled\n");
143 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
146 struct Scsi_Host *shost = class_to_shost(dev);
147 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
148 struct lpfc_hba *phba = vport->phba;
150 return snprintf(buf, PAGE_SIZE, "%llu\n",
151 (unsigned long long)phba->bg_guard_err_cnt);
155 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
158 struct Scsi_Host *shost = class_to_shost(dev);
159 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
160 struct lpfc_hba *phba = vport->phba;
162 return snprintf(buf, PAGE_SIZE, "%llu\n",
163 (unsigned long long)phba->bg_apptag_err_cnt);
167 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
170 struct Scsi_Host *shost = class_to_shost(dev);
171 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
172 struct lpfc_hba *phba = vport->phba;
174 return snprintf(buf, PAGE_SIZE, "%llu\n",
175 (unsigned long long)phba->bg_reftag_err_cnt);
179 * lpfc_info_show - Return some pci info about the host in ascii
180 * @dev: class converted to a Scsi_host structure.
181 * @attr: device attribute, not used.
182 * @buf: on return contains the formatted text from lpfc_info().
184 * Returns: size of formatted string.
187 lpfc_info_show(struct device *dev, struct device_attribute *attr,
190 struct Scsi_Host *host = class_to_shost(dev);
192 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
196 * lpfc_serialnum_show - Return the hba serial number in ascii
197 * @dev: class converted to a Scsi_host structure.
198 * @attr: device attribute, not used.
199 * @buf: on return contains the formatted text serial number.
201 * Returns: size of formatted string.
204 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
207 struct Scsi_Host *shost = class_to_shost(dev);
208 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
209 struct lpfc_hba *phba = vport->phba;
211 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
215 * lpfc_temp_sensor_show - Return the temperature sensor level
216 * @dev: class converted to a Scsi_host structure.
217 * @attr: device attribute, not used.
218 * @buf: on return contains the formatted support level.
221 * Returns a number indicating the temperature sensor level currently
222 * supported, zero or one in ascii.
224 * Returns: size of formatted string.
227 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
230 struct Scsi_Host *shost = class_to_shost(dev);
231 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
232 struct lpfc_hba *phba = vport->phba;
233 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
237 * lpfc_modeldesc_show - Return the model description of the hba
238 * @dev: class converted to a Scsi_host structure.
239 * @attr: device attribute, not used.
240 * @buf: on return contains the scsi vpd model description.
242 * Returns: size of formatted string.
245 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
248 struct Scsi_Host *shost = class_to_shost(dev);
249 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
250 struct lpfc_hba *phba = vport->phba;
252 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
256 * lpfc_modelname_show - Return the model name of the hba
257 * @dev: class converted to a Scsi_host structure.
258 * @attr: device attribute, not used.
259 * @buf: on return contains the scsi vpd model name.
261 * Returns: size of formatted string.
264 lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
267 struct Scsi_Host *shost = class_to_shost(dev);
268 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
269 struct lpfc_hba *phba = vport->phba;
271 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
275 * lpfc_programtype_show - Return the program type of the hba
276 * @dev: class converted to a Scsi_host structure.
277 * @attr: device attribute, not used.
278 * @buf: on return contains the scsi vpd program type.
280 * Returns: size of formatted string.
283 lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
286 struct Scsi_Host *shost = class_to_shost(dev);
287 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
288 struct lpfc_hba *phba = vport->phba;
290 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
294 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
295 * @dev: class converted to a Scsi_host structure.
296 * @attr: device attribute, not used.
297 * @buf: on return contains the Menlo Maintenance sli flag.
299 * Returns: size of formatted string.
302 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
304 struct Scsi_Host *shost = class_to_shost(dev);
305 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
306 struct lpfc_hba *phba = vport->phba;
308 return snprintf(buf, PAGE_SIZE, "%d\n",
309 (phba->sli.sli_flag & LPFC_MENLO_MAINT));
313 * lpfc_vportnum_show - Return the port number in ascii of the hba
314 * @dev: class converted to a Scsi_host structure.
315 * @attr: device attribute, not used.
316 * @buf: on return contains scsi vpd program type.
318 * Returns: size of formatted string.
321 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
324 struct Scsi_Host *shost = class_to_shost(dev);
325 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
326 struct lpfc_hba *phba = vport->phba;
328 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
332 * lpfc_fwrev_show - Return the firmware rev running in the hba
333 * @dev: class converted to a Scsi_host structure.
334 * @attr: device attribute, not used.
335 * @buf: on return contains the scsi vpd program type.
337 * Returns: size of formatted string.
340 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
343 struct Scsi_Host *shost = class_to_shost(dev);
344 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
345 struct lpfc_hba *phba = vport->phba;
348 lpfc_decode_firmware_rev(phba, fwrev, 1);
349 return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
353 * lpfc_hdw_show - Return the jedec information about the hba
354 * @dev: class converted to a Scsi_host structure.
355 * @attr: device attribute, not used.
356 * @buf: on return contains the scsi vpd program type.
358 * Returns: size of formatted string.
361 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
364 struct Scsi_Host *shost = class_to_shost(dev);
365 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
366 struct lpfc_hba *phba = vport->phba;
367 lpfc_vpd_t *vp = &phba->vpd;
369 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
370 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
374 * lpfc_option_rom_version_show - Return the adapter ROM FCode version
375 * @dev: class converted to a Scsi_host structure.
376 * @attr: device attribute, not used.
377 * @buf: on return contains the ROM and FCode ascii strings.
379 * Returns: size of formatted string.
382 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
385 struct Scsi_Host *shost = class_to_shost(dev);
386 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
387 struct lpfc_hba *phba = vport->phba;
389 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
393 * lpfc_state_show - Return the link state of the port
394 * @dev: class converted to a Scsi_host structure.
395 * @attr: device attribute, not used.
396 * @buf: on return contains text describing the state of the link.
399 * The switch statement has no default so zero will be returned.
401 * Returns: size of formatted string.
404 lpfc_link_state_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;
412 switch (phba->link_state) {
413 case LPFC_LINK_UNKNOWN:
414 case LPFC_WARM_START:
415 case LPFC_INIT_START:
416 case LPFC_INIT_MBX_CMDS:
419 if (phba->hba_flag & LINK_DISABLED)
420 len += snprintf(buf + len, PAGE_SIZE-len,
421 "Link Down - User disabled\n");
423 len += snprintf(buf + len, PAGE_SIZE-len,
429 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
431 switch (vport->port_state) {
432 case LPFC_LOCAL_CFG_LINK:
433 len += snprintf(buf + len, PAGE_SIZE-len,
434 "Configuring Link\n");
438 case LPFC_FABRIC_CFG_LINK:
441 case LPFC_BUILD_DISC_LIST:
443 len += snprintf(buf + len, PAGE_SIZE - len,
446 case LPFC_VPORT_READY:
447 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
450 case LPFC_VPORT_FAILED:
451 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
454 case LPFC_VPORT_UNKNOWN:
455 len += snprintf(buf + len, PAGE_SIZE - len,
459 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
460 len += snprintf(buf + len, PAGE_SIZE-len,
461 " Menlo Maint Mode\n");
462 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
463 if (vport->fc_flag & FC_PUBLIC_LOOP)
464 len += snprintf(buf + len, PAGE_SIZE-len,
467 len += snprintf(buf + len, PAGE_SIZE-len,
470 if (vport->fc_flag & FC_FABRIC)
471 len += snprintf(buf + len, PAGE_SIZE-len,
474 len += snprintf(buf + len, PAGE_SIZE-len,
483 * lpfc_link_state_store - Transition the link_state on an HBA port
484 * @dev: class device that is converted into a Scsi_host.
485 * @attr: device attribute, not used.
486 * @buf: one or more lpfc_polling_flags values.
490 * -EINVAL if the buffer is not "up" or "down"
491 * return from link state change function if non-zero
492 * length of the buf on success
495 lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
496 const char *buf, size_t count)
498 struct Scsi_Host *shost = class_to_shost(dev);
499 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
500 struct lpfc_hba *phba = vport->phba;
502 int status = -EINVAL;
504 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
505 (phba->link_state == LPFC_LINK_DOWN))
506 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
507 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
508 (phba->link_state >= LPFC_LINK_UP))
509 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
518 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
519 * @dev: class device that is converted into a Scsi_host.
520 * @attr: device attribute, not used.
521 * @buf: on return contains the sum of fc mapped and unmapped.
524 * Returns the ascii text number of the sum of the fc mapped and unmapped
527 * Returns: size of formatted string.
530 lpfc_num_discovered_ports_show(struct device *dev,
531 struct device_attribute *attr, char *buf)
533 struct Scsi_Host *shost = class_to_shost(dev);
534 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
536 return snprintf(buf, PAGE_SIZE, "%d\n",
537 vport->fc_map_cnt + vport->fc_unmap_cnt);
541 * lpfc_issue_lip - Misnomer, name carried over from long ago
542 * @shost: Scsi_Host pointer.
545 * Bring the link down gracefully then re-init the link. The firmware will
546 * re-init the fiber channel interface as required. Does not issue a LIP.
549 * -EPERM port offline or management commands are being blocked
550 * -ENOMEM cannot allocate memory for the mailbox command
551 * -EIO error sending the mailbox command
555 lpfc_issue_lip(struct Scsi_Host *shost)
557 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
558 struct lpfc_hba *phba = vport->phba;
559 LPFC_MBOXQ_t *pmboxq;
560 int mbxstatus = MBXERR_ERROR;
562 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
563 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
566 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
571 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
572 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
573 pmboxq->u.mb.mbxOwner = OWN_HOST;
575 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
577 if ((mbxstatus == MBX_SUCCESS) &&
578 (pmboxq->u.mb.mbxStatus == 0 ||
579 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
580 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
581 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
582 phba->cfg_link_speed);
583 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
585 if ((mbxstatus == MBX_SUCCESS) &&
586 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
587 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
588 "2859 SLI authentication is required "
589 "for INIT_LINK but has not done yet\n");
592 lpfc_set_loopback_flag(phba);
593 if (mbxstatus != MBX_TIMEOUT)
594 mempool_free(pmboxq, phba->mbox_mem_pool);
596 if (mbxstatus == MBXERR_ERROR)
603 * lpfc_do_offline - Issues a mailbox command to bring the link down
604 * @phba: lpfc_hba pointer.
605 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
608 * Assumes any error from lpfc_do_offline() will be negative.
609 * Can wait up to 5 seconds for the port ring buffers count
610 * to reach zero, prints a warning if it is not zero and continues.
611 * lpfc_workq_post_event() returns a non-zero return code if call fails.
614 * -EIO error posting the event
618 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
620 struct completion online_compl;
621 struct lpfc_sli_ring *pring;
622 struct lpfc_sli *psli;
628 init_completion(&online_compl);
629 rc = lpfc_workq_post_event(phba, &status, &online_compl,
630 LPFC_EVT_OFFLINE_PREP);
634 wait_for_completion(&online_compl);
641 /* Wait a little for things to settle down, but not
642 * long enough for dev loss timeout to expire.
644 for (i = 0; i < psli->num_rings; i++) {
645 pring = &psli->ring[i];
646 while (pring->txcmplq_cnt) {
648 if (cnt++ > 500) { /* 5 secs */
649 lpfc_printf_log(phba,
650 KERN_WARNING, LOG_INIT,
651 "0466 Outstanding IO when "
652 "bringing Adapter offline\n");
658 init_completion(&online_compl);
659 rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
663 wait_for_completion(&online_compl);
672 * lpfc_selective_reset - Offline then onlines the port
673 * @phba: lpfc_hba pointer.
676 * If the port is configured to allow a reset then the hba is brought
677 * offline then online.
680 * Assumes any error from lpfc_do_offline() will be negative.
681 * Do not make this function static.
684 * lpfc_do_offline() return code if not zero
685 * -EIO reset not configured or error posting the event
689 lpfc_selective_reset(struct lpfc_hba *phba)
691 struct completion online_compl;
695 if (!phba->cfg_enable_hba_reset)
698 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
703 init_completion(&online_compl);
704 rc = lpfc_workq_post_event(phba, &status, &online_compl,
709 wait_for_completion(&online_compl);
718 * lpfc_issue_reset - Selectively resets an adapter
719 * @dev: class device that is converted into a Scsi_host.
720 * @attr: device attribute, not used.
721 * @buf: containing the string "selective".
722 * @count: unused variable.
725 * If the buf contains the string "selective" then lpfc_selective_reset()
726 * is called to perform the reset.
729 * Assumes any error from lpfc_selective_reset() will be negative.
730 * If lpfc_selective_reset() returns zero then the length of the buffer
731 * is returned which indicates success
734 * -EINVAL if the buffer does not contain the string "selective"
735 * length of buf if lpfc-selective_reset() if the call succeeds
736 * return value of lpfc_selective_reset() if the call fails
739 lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
740 const char *buf, size_t count)
742 struct Scsi_Host *shost = class_to_shost(dev);
743 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
744 struct lpfc_hba *phba = vport->phba;
746 int status = -EINVAL;
748 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
749 status = phba->lpfc_selective_reset(phba);
758 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
759 * @phba: lpfc_hba pointer.
762 * SLI4 interface type-2 device to wait on the sliport status register for
763 * the readyness after performing a firmware reset.
769 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
771 struct lpfc_register portstat_reg;
775 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
776 &portstat_reg.word0);
778 /* wait for the SLI port firmware ready after firmware reset */
779 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
781 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
782 &portstat_reg.word0);
783 if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
785 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
787 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
792 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
799 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
800 * @phba: lpfc_hba pointer.
803 * Request SLI4 interface type-2 device to perform a physical register set
810 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
812 struct completion online_compl;
817 if (!phba->cfg_enable_hba_reset)
820 if ((phba->sli_rev < LPFC_SLI_REV4) ||
821 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
822 LPFC_SLI_INTF_IF_TYPE_2))
825 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
830 /* wait for the device to be quiesced before firmware reset */
833 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
834 LPFC_CTL_PDEV_CTL_OFFSET);
836 if (opcode == LPFC_FW_DUMP)
837 reg_val |= LPFC_FW_DUMP_REQUEST;
838 else if (opcode == LPFC_FW_RESET)
839 reg_val |= LPFC_CTL_PDEV_CTL_FRST;
840 else if (opcode == LPFC_DV_RESET)
841 reg_val |= LPFC_CTL_PDEV_CTL_DRST;
843 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
844 LPFC_CTL_PDEV_CTL_OFFSET);
846 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
848 /* delay driver action following IF_TYPE_2 reset */
849 rc = lpfc_sli4_pdev_status_reg_wait(phba);
854 init_completion(&online_compl);
855 rc = lpfc_workq_post_event(phba, &status, &online_compl,
860 wait_for_completion(&online_compl);
869 * lpfc_nport_evt_cnt_show - Return the number of nport events
870 * @dev: class device that is converted into a Scsi_host.
871 * @attr: device attribute, not used.
872 * @buf: on return contains the ascii number of nport events.
874 * Returns: size of formatted string.
877 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
880 struct Scsi_Host *shost = class_to_shost(dev);
881 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
882 struct lpfc_hba *phba = vport->phba;
884 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
888 * lpfc_board_mode_show - Return the state of the board
889 * @dev: class device that is converted into a Scsi_host.
890 * @attr: device attribute, not used.
891 * @buf: on return contains the state of the adapter.
893 * Returns: size of formatted string.
896 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
899 struct Scsi_Host *shost = class_to_shost(dev);
900 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
901 struct lpfc_hba *phba = vport->phba;
904 if (phba->link_state == LPFC_HBA_ERROR)
906 else if (phba->link_state == LPFC_WARM_START)
907 state = "warm start";
908 else if (phba->link_state == LPFC_INIT_START)
913 return snprintf(buf, PAGE_SIZE, "%s\n", state);
917 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
918 * @dev: class device that is converted into a Scsi_host.
919 * @attr: device attribute, not used.
920 * @buf: containing one of the strings "online", "offline", "warm" or "error".
921 * @count: unused variable.
924 * -EACCES if enable hba reset not enabled
925 * -EINVAL if the buffer does not contain a valid string (see above)
926 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
927 * buf length greater than zero indicates success
930 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
931 const char *buf, size_t count)
933 struct Scsi_Host *shost = class_to_shost(dev);
934 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
935 struct lpfc_hba *phba = vport->phba;
936 struct completion online_compl;
940 if (!phba->cfg_enable_hba_reset)
943 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
944 "3050 lpfc_board_mode set to %s\n", buf);
946 init_completion(&online_compl);
948 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
949 rc = lpfc_workq_post_event(phba, &status, &online_compl,
953 wait_for_completion(&online_compl);
954 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
955 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
956 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
957 if (phba->sli_rev == LPFC_SLI_REV4)
960 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
961 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
962 if (phba->sli_rev == LPFC_SLI_REV4)
965 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
966 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
967 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
968 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
969 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
970 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
971 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
982 * lpfc_get_hba_info - Return various bits of informaton about the adapter
983 * @phba: pointer to the adapter structure.
984 * @mxri: max xri count.
985 * @axri: available xri count.
986 * @mrpi: max rpi count.
987 * @arpi: available rpi count.
988 * @mvpi: max vpi count.
989 * @avpi: available vpi count.
992 * If an integer pointer for an count is not null then the value for the
1000 lpfc_get_hba_info(struct lpfc_hba *phba,
1001 uint32_t *mxri, uint32_t *axri,
1002 uint32_t *mrpi, uint32_t *arpi,
1003 uint32_t *mvpi, uint32_t *avpi)
1005 struct lpfc_mbx_read_config *rd_config;
1006 LPFC_MBOXQ_t *pmboxq;
1012 * prevent udev from issuing mailbox commands until the port is
1015 if (phba->link_state < LPFC_LINK_DOWN ||
1016 !phba->mbox_mem_pool ||
1017 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
1020 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
1023 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1026 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1028 pmb = &pmboxq->u.mb;
1029 pmb->mbxCommand = MBX_READ_CONFIG;
1030 pmb->mbxOwner = OWN_HOST;
1031 pmboxq->context1 = NULL;
1033 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1034 rc = MBX_NOT_FINISHED;
1036 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1038 if (rc != MBX_SUCCESS) {
1039 if (rc != MBX_TIMEOUT)
1040 mempool_free(pmboxq, phba->mbox_mem_pool);
1044 if (phba->sli_rev == LPFC_SLI_REV4) {
1045 rd_config = &pmboxq->u.mqe.un.rd_config;
1047 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
1049 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
1050 phba->sli4_hba.max_cfg_param.rpi_used;
1052 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
1054 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
1055 phba->sli4_hba.max_cfg_param.xri_used;
1057 /* Account for differences with SLI-3. Get vpi count from
1058 * mailbox data and subtract one for max vpi value.
1060 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
1061 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
1066 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
1069 *mrpi = pmb->un.varRdConfig.max_rpi;
1071 *arpi = pmb->un.varRdConfig.avail_rpi;
1073 *mxri = pmb->un.varRdConfig.max_xri;
1075 *axri = pmb->un.varRdConfig.avail_xri;
1077 *mvpi = pmb->un.varRdConfig.max_vpi;
1079 *avpi = pmb->un.varRdConfig.avail_vpi;
1082 mempool_free(pmboxq, phba->mbox_mem_pool);
1087 * lpfc_max_rpi_show - Return maximum rpi
1088 * @dev: class device that is converted into a Scsi_host.
1089 * @attr: device attribute, not used.
1090 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
1093 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1094 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1095 * to "Unknown" and the buffer length is returned, therefore the caller
1096 * must check for "Unknown" in the buffer to detect a failure.
1098 * Returns: size of formatted string.
1101 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
1104 struct Scsi_Host *shost = class_to_shost(dev);
1105 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1106 struct lpfc_hba *phba = vport->phba;
1109 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
1110 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1111 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1115 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
1116 * @dev: class device that is converted into a Scsi_host.
1117 * @attr: device attribute, not used.
1118 * @buf: containing the used rpi count in decimal or "Unknown".
1121 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
1122 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1123 * to "Unknown" and the buffer length is returned, therefore the caller
1124 * must check for "Unknown" in the buffer to detect a failure.
1126 * Returns: size of formatted string.
1129 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
1132 struct Scsi_Host *shost = class_to_shost(dev);
1133 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1134 struct lpfc_hba *phba = vport->phba;
1137 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1138 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1139 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1143 * lpfc_max_xri_show - Return maximum xri
1144 * @dev: class device that is converted into a Scsi_host.
1145 * @attr: device attribute, not used.
1146 * @buf: on return contains the maximum xri count in decimal or "Unknown".
1149 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1150 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1151 * to "Unknown" and the buffer length is returned, therefore the caller
1152 * must check for "Unknown" in the buffer to detect a failure.
1154 * Returns: size of formatted string.
1157 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
1160 struct Scsi_Host *shost = class_to_shost(dev);
1161 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1162 struct lpfc_hba *phba = vport->phba;
1165 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1166 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1167 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1171 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1172 * @dev: class device that is converted into a Scsi_host.
1173 * @attr: device attribute, not used.
1174 * @buf: on return contains the used xri count in decimal or "Unknown".
1177 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
1178 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1179 * to "Unknown" and the buffer length is returned, therefore the caller
1180 * must check for "Unknown" in the buffer to detect a failure.
1182 * Returns: size of formatted string.
1185 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
1188 struct Scsi_Host *shost = class_to_shost(dev);
1189 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1190 struct lpfc_hba *phba = vport->phba;
1193 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
1194 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1195 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1199 * lpfc_max_vpi_show - Return maximum vpi
1200 * @dev: class device that is converted into a Scsi_host.
1201 * @attr: device attribute, not used.
1202 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
1205 * Calls lpfc_get_hba_info() asking for just the mvpi count.
1206 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1207 * to "Unknown" and the buffer length is returned, therefore the caller
1208 * must check for "Unknown" in the buffer to detect a failure.
1210 * Returns: size of formatted string.
1213 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
1216 struct Scsi_Host *shost = class_to_shost(dev);
1217 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1218 struct lpfc_hba *phba = vport->phba;
1221 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
1222 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1223 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1227 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1228 * @dev: class device that is converted into a Scsi_host.
1229 * @attr: device attribute, not used.
1230 * @buf: on return contains the used vpi count in decimal or "Unknown".
1233 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
1234 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1235 * to "Unknown" and the buffer length is returned, therefore the caller
1236 * must check for "Unknown" in the buffer to detect a failure.
1238 * Returns: size of formatted string.
1241 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
1244 struct Scsi_Host *shost = class_to_shost(dev);
1245 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1246 struct lpfc_hba *phba = vport->phba;
1249 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
1250 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1251 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1255 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1256 * @dev: class device that is converted into a Scsi_host.
1257 * @attr: device attribute, not used.
1258 * @buf: text that must be interpreted to determine if npiv is supported.
1261 * Buffer will contain text indicating npiv is not suppoerted on the port,
1262 * the port is an NPIV physical port, or it is an npiv virtual port with
1263 * the id of the vport.
1265 * Returns: size of formatted string.
1268 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
1271 struct Scsi_Host *shost = class_to_shost(dev);
1272 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1273 struct lpfc_hba *phba = vport->phba;
1275 if (!(phba->max_vpi))
1276 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
1277 if (vport->port_type == LPFC_PHYSICAL_PORT)
1278 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
1279 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
1283 * lpfc_poll_show - Return text about poll support for the adapter
1284 * @dev: class device that is converted into a Scsi_host.
1285 * @attr: device attribute, not used.
1286 * @buf: on return contains the cfg_poll in hex.
1289 * cfg_poll should be a lpfc_polling_flags type.
1291 * Returns: size of formatted string.
1294 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
1297 struct Scsi_Host *shost = class_to_shost(dev);
1298 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1299 struct lpfc_hba *phba = vport->phba;
1301 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
1305 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1306 * @dev: class device that is converted into a Scsi_host.
1307 * @attr: device attribute, not used.
1308 * @buf: one or more lpfc_polling_flags values.
1312 * buf contents converted to integer and checked for a valid value.
1315 * -EINVAL if the buffer connot be converted or is out of range
1316 * length of the buf on success
1319 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
1320 const char *buf, size_t count)
1322 struct Scsi_Host *shost = class_to_shost(dev);
1323 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1324 struct lpfc_hba *phba = vport->phba;
1329 if (!isdigit(buf[0]))
1332 if (sscanf(buf, "%i", &val) != 1)
1335 if ((val & 0x3) != val)
1338 if (phba->sli_rev == LPFC_SLI_REV4)
1341 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1342 "3051 lpfc_poll changed from %d to %d\n",
1343 phba->cfg_poll, val);
1345 spin_lock_irq(&phba->hbalock);
1347 old_val = phba->cfg_poll;
1349 if (val & ENABLE_FCP_RING_POLLING) {
1350 if ((val & DISABLE_FCP_RING_INT) &&
1351 !(old_val & DISABLE_FCP_RING_INT)) {
1352 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1353 spin_unlock_irq(&phba->hbalock);
1356 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
1357 writel(creg_val, phba->HCregaddr);
1358 readl(phba->HCregaddr); /* flush */
1360 lpfc_poll_start_timer(phba);
1362 } else if (val != 0x0) {
1363 spin_unlock_irq(&phba->hbalock);
1367 if (!(val & DISABLE_FCP_RING_INT) &&
1368 (old_val & DISABLE_FCP_RING_INT))
1370 spin_unlock_irq(&phba->hbalock);
1371 del_timer(&phba->fcp_poll_timer);
1372 spin_lock_irq(&phba->hbalock);
1373 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1374 spin_unlock_irq(&phba->hbalock);
1377 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1378 writel(creg_val, phba->HCregaddr);
1379 readl(phba->HCregaddr); /* flush */
1382 phba->cfg_poll = val;
1384 spin_unlock_irq(&phba->hbalock);
1390 * lpfc_fips_level_show - Return the current FIPS level for the HBA
1391 * @dev: class unused variable.
1392 * @attr: device attribute, not used.
1393 * @buf: on return contains the module description text.
1395 * Returns: size of formatted string.
1398 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr,
1401 struct Scsi_Host *shost = class_to_shost(dev);
1402 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1403 struct lpfc_hba *phba = vport->phba;
1405 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
1409 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
1410 * @dev: class unused variable.
1411 * @attr: device attribute, not used.
1412 * @buf: on return contains the module description text.
1414 * Returns: size of formatted string.
1417 lpfc_fips_rev_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 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
1428 * lpfc_dss_show - Return the current state of dss and the configured state
1429 * @dev: class converted to a Scsi_host structure.
1430 * @attr: device attribute, not used.
1431 * @buf: on return contains the formatted text.
1433 * Returns: size of formatted string.
1436 lpfc_dss_show(struct device *dev, struct device_attribute *attr,
1439 struct Scsi_Host *shost = class_to_shost(dev);
1440 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1441 struct lpfc_hba *phba = vport->phba;
1443 return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
1444 (phba->cfg_enable_dss) ? "Enabled" : "Disabled",
1445 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
1450 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
1451 * @dev: class converted to a Scsi_host structure.
1452 * @attr: device attribute, not used.
1453 * @buf: on return contains the formatted support level.
1456 * Returns the maximum number of virtual functions a physical function can
1457 * support, 0 will be returned if called on virtual function.
1459 * Returns: size of formatted string.
1462 lpfc_sriov_hw_max_virtfn_show(struct device *dev,
1463 struct device_attribute *attr,
1466 struct Scsi_Host *shost = class_to_shost(dev);
1467 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1468 struct lpfc_hba *phba = vport->phba;
1469 uint16_t max_nr_virtfn;
1471 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
1472 return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
1476 * lpfc_param_show - Return a cfg attribute value in decimal
1479 * Macro that given an attr e.g. hba_queue_depth expands
1480 * into a function with the name lpfc_hba_queue_depth_show.
1482 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1483 * @dev: class device that is converted into a Scsi_host.
1484 * @attr: device attribute, not used.
1485 * @buf: on return contains the attribute value in decimal.
1487 * Returns: size of formatted string.
1489 #define lpfc_param_show(attr) \
1491 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1494 struct Scsi_Host *shost = class_to_shost(dev);\
1495 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1496 struct lpfc_hba *phba = vport->phba;\
1498 val = phba->cfg_##attr;\
1499 return snprintf(buf, PAGE_SIZE, "%d\n",\
1504 * lpfc_param_hex_show - Return a cfg attribute value in hex
1507 * Macro that given an attr e.g. hba_queue_depth expands
1508 * into a function with the name lpfc_hba_queue_depth_show
1510 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1511 * @dev: class device that is converted into a Scsi_host.
1512 * @attr: device attribute, not used.
1513 * @buf: on return contains the attribute value in hexadecimal.
1515 * Returns: size of formatted string.
1517 #define lpfc_param_hex_show(attr) \
1519 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1522 struct Scsi_Host *shost = class_to_shost(dev);\
1523 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1524 struct lpfc_hba *phba = vport->phba;\
1526 val = phba->cfg_##attr;\
1527 return snprintf(buf, PAGE_SIZE, "%#x\n",\
1532 * lpfc_param_init - Initializes a cfg attribute
1535 * Macro that given an attr e.g. hba_queue_depth expands
1536 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1537 * takes a default argument, a minimum and maximum argument.
1539 * lpfc_##attr##_init: Initializes an attribute.
1540 * @phba: pointer the the adapter structure.
1541 * @val: integer attribute value.
1543 * Validates the min and max values then sets the adapter config field
1544 * accordingly, or uses the default if out of range and prints an error message.
1548 * -EINVAL if default used
1550 #define lpfc_param_init(attr, default, minval, maxval) \
1552 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1554 if (val >= minval && val <= maxval) {\
1555 phba->cfg_##attr = val;\
1558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1559 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
1560 "allowed range is ["#minval", "#maxval"]\n", val); \
1561 phba->cfg_##attr = default;\
1566 * lpfc_param_set - Set a cfg attribute value
1569 * Macro that given an attr e.g. hba_queue_depth expands
1570 * into a function with the name lpfc_hba_queue_depth_set
1572 * lpfc_##attr##_set: Sets an attribute value.
1573 * @phba: pointer the the adapter structure.
1574 * @val: integer attribute value.
1577 * Validates the min and max values then sets the
1578 * adapter config field if in the valid range. prints error message
1579 * and does not set the parameter if invalid.
1583 * -EINVAL if val is invalid
1585 #define lpfc_param_set(attr, default, minval, maxval) \
1587 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1589 if (val >= minval && val <= maxval) {\
1590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1591 "3052 lpfc_" #attr " changed from %d to %d\n", \
1592 phba->cfg_##attr, val); \
1593 phba->cfg_##attr = val;\
1596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1597 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
1598 "allowed range is ["#minval", "#maxval"]\n", val); \
1603 * lpfc_param_store - Set a vport attribute value
1606 * Macro that given an attr e.g. hba_queue_depth expands
1607 * into a function with the name lpfc_hba_queue_depth_store.
1609 * lpfc_##attr##_store: Set an sttribute value.
1610 * @dev: class device that is converted into a Scsi_host.
1611 * @attr: device attribute, not used.
1612 * @buf: contains the attribute value in ascii.
1616 * Convert the ascii text number to an integer, then
1617 * use the lpfc_##attr##_set function to set the value.
1620 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1621 * length of buffer upon success.
1623 #define lpfc_param_store(attr) \
1625 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1626 const char *buf, size_t count) \
1628 struct Scsi_Host *shost = class_to_shost(dev);\
1629 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1630 struct lpfc_hba *phba = vport->phba;\
1632 if (!isdigit(buf[0]))\
1634 if (sscanf(buf, "%i", &val) != 1)\
1636 if (lpfc_##attr##_set(phba, val) == 0) \
1637 return strlen(buf);\
1643 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1646 * Macro that given an attr e.g. hba_queue_depth expands
1647 * into a function with the name lpfc_hba_queue_depth_show
1649 * lpfc_##attr##_show: prints the attribute value in decimal.
1650 * @dev: class device that is converted into a Scsi_host.
1651 * @attr: device attribute, not used.
1652 * @buf: on return contains the attribute value in decimal.
1654 * Returns: length of formatted string.
1656 #define lpfc_vport_param_show(attr) \
1658 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1661 struct Scsi_Host *shost = class_to_shost(dev);\
1662 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1664 val = vport->cfg_##attr;\
1665 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
1669 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1672 * Macro that given an attr e.g.
1673 * hba_queue_depth expands into a function with the name
1674 * lpfc_hba_queue_depth_show
1676 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1677 * @dev: class device that is converted into a Scsi_host.
1678 * @attr: device attribute, not used.
1679 * @buf: on return contains the attribute value in hexadecimal.
1681 * Returns: length of formatted string.
1683 #define lpfc_vport_param_hex_show(attr) \
1685 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1688 struct Scsi_Host *shost = class_to_shost(dev);\
1689 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1691 val = vport->cfg_##attr;\
1692 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
1696 * lpfc_vport_param_init - Initialize a vport cfg attribute
1699 * Macro that given an attr e.g. hba_queue_depth expands
1700 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1701 * takes a default argument, a minimum and maximum argument.
1703 * lpfc_##attr##_init: validates the min and max values then sets the
1704 * adapter config field accordingly, or uses the default if out of range
1705 * and prints an error message.
1706 * @phba: pointer the the adapter structure.
1707 * @val: integer attribute value.
1711 * -EINVAL if default used
1713 #define lpfc_vport_param_init(attr, default, minval, maxval) \
1715 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1717 if (val >= minval && val <= maxval) {\
1718 vport->cfg_##attr = val;\
1721 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1722 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1723 "allowed range is ["#minval", "#maxval"]\n", val); \
1724 vport->cfg_##attr = default;\
1729 * lpfc_vport_param_set - Set a vport cfg attribute
1732 * Macro that given an attr e.g. hba_queue_depth expands
1733 * into a function with the name lpfc_hba_queue_depth_set
1735 * lpfc_##attr##_set: validates the min and max values then sets the
1736 * adapter config field if in the valid range. prints error message
1737 * and does not set the parameter if invalid.
1738 * @phba: pointer the the adapter structure.
1739 * @val: integer attribute value.
1743 * -EINVAL if val is invalid
1745 #define lpfc_vport_param_set(attr, default, minval, maxval) \
1747 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1749 if (val >= minval && val <= maxval) {\
1750 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1751 "3053 lpfc_" #attr " changed from %d to %d\n", \
1752 vport->cfg_##attr, val); \
1753 vport->cfg_##attr = val;\
1756 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1757 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1758 "allowed range is ["#minval", "#maxval"]\n", val); \
1763 * lpfc_vport_param_store - Set a vport attribute
1766 * Macro that given an attr e.g. hba_queue_depth
1767 * expands into a function with the name lpfc_hba_queue_depth_store
1769 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1770 * use the lpfc_##attr##_set function to set the value.
1771 * @cdev: class device that is converted into a Scsi_host.
1772 * @buf: contains the attribute value in decimal.
1776 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1777 * length of buffer upon success.
1779 #define lpfc_vport_param_store(attr) \
1781 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1782 const char *buf, size_t count) \
1784 struct Scsi_Host *shost = class_to_shost(dev);\
1785 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1787 if (!isdigit(buf[0]))\
1789 if (sscanf(buf, "%i", &val) != 1)\
1791 if (lpfc_##attr##_set(vport, val) == 0) \
1792 return strlen(buf);\
1798 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
1799 static uint lpfc_##name = defval;\
1800 module_param(lpfc_##name, uint, S_IRUGO);\
1801 MODULE_PARM_DESC(lpfc_##name, desc);\
1802 lpfc_param_init(name, defval, minval, maxval)
1804 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
1805 static uint lpfc_##name = defval;\
1806 module_param(lpfc_##name, uint, S_IRUGO);\
1807 MODULE_PARM_DESC(lpfc_##name, desc);\
1808 lpfc_param_show(name)\
1809 lpfc_param_init(name, defval, minval, maxval)\
1810 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1812 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
1813 static uint lpfc_##name = defval;\
1814 module_param(lpfc_##name, uint, S_IRUGO);\
1815 MODULE_PARM_DESC(lpfc_##name, desc);\
1816 lpfc_param_show(name)\
1817 lpfc_param_init(name, defval, minval, maxval)\
1818 lpfc_param_set(name, defval, minval, maxval)\
1819 lpfc_param_store(name)\
1820 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1821 lpfc_##name##_show, lpfc_##name##_store)
1823 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1824 static uint lpfc_##name = defval;\
1825 module_param(lpfc_##name, uint, S_IRUGO);\
1826 MODULE_PARM_DESC(lpfc_##name, desc);\
1827 lpfc_param_hex_show(name)\
1828 lpfc_param_init(name, defval, minval, maxval)\
1829 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1831 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1832 static uint lpfc_##name = defval;\
1833 module_param(lpfc_##name, uint, S_IRUGO);\
1834 MODULE_PARM_DESC(lpfc_##name, desc);\
1835 lpfc_param_hex_show(name)\
1836 lpfc_param_init(name, defval, minval, maxval)\
1837 lpfc_param_set(name, defval, minval, maxval)\
1838 lpfc_param_store(name)\
1839 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1840 lpfc_##name##_show, lpfc_##name##_store)
1842 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
1843 static uint lpfc_##name = defval;\
1844 module_param(lpfc_##name, uint, S_IRUGO);\
1845 MODULE_PARM_DESC(lpfc_##name, desc);\
1846 lpfc_vport_param_init(name, defval, minval, maxval)
1848 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
1849 static uint lpfc_##name = defval;\
1850 module_param(lpfc_##name, uint, S_IRUGO);\
1851 MODULE_PARM_DESC(lpfc_##name, desc);\
1852 lpfc_vport_param_show(name)\
1853 lpfc_vport_param_init(name, defval, minval, maxval)\
1854 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1856 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
1857 static uint lpfc_##name = defval;\
1858 module_param(lpfc_##name, uint, S_IRUGO);\
1859 MODULE_PARM_DESC(lpfc_##name, desc);\
1860 lpfc_vport_param_show(name)\
1861 lpfc_vport_param_init(name, defval, minval, maxval)\
1862 lpfc_vport_param_set(name, defval, minval, maxval)\
1863 lpfc_vport_param_store(name)\
1864 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1865 lpfc_##name##_show, lpfc_##name##_store)
1867 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1868 static uint lpfc_##name = defval;\
1869 module_param(lpfc_##name, uint, S_IRUGO);\
1870 MODULE_PARM_DESC(lpfc_##name, desc);\
1871 lpfc_vport_param_hex_show(name)\
1872 lpfc_vport_param_init(name, defval, minval, maxval)\
1873 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1875 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1876 static uint lpfc_##name = defval;\
1877 module_param(lpfc_##name, uint, S_IRUGO);\
1878 MODULE_PARM_DESC(lpfc_##name, desc);\
1879 lpfc_vport_param_hex_show(name)\
1880 lpfc_vport_param_init(name, defval, minval, maxval)\
1881 lpfc_vport_param_set(name, defval, minval, maxval)\
1882 lpfc_vport_param_store(name)\
1883 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1884 lpfc_##name##_show, lpfc_##name##_store)
1886 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
1887 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
1888 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
1889 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
1890 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
1891 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
1892 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
1893 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
1894 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
1895 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
1896 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
1897 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
1898 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
1899 lpfc_link_state_store);
1900 static DEVICE_ATTR(option_rom_version, S_IRUGO,
1901 lpfc_option_rom_version_show, NULL);
1902 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
1903 lpfc_num_discovered_ports_show, NULL);
1904 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
1905 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
1906 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
1907 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
1908 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
1909 lpfc_board_mode_show, lpfc_board_mode_store);
1910 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
1911 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
1912 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
1913 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
1914 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
1915 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
1916 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
1917 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
1918 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
1919 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
1920 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
1921 static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
1922 static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
1923 lpfc_sriov_hw_max_virtfn_show, NULL);
1925 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
1928 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
1929 * @dev: class device that is converted into a Scsi_host.
1930 * @attr: device attribute, not used.
1931 * @buf: containing the string lpfc_soft_wwn_key.
1932 * @count: must be size of lpfc_soft_wwn_key.
1935 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
1936 * length of buf indicates success
1939 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
1940 const char *buf, size_t count)
1942 struct Scsi_Host *shost = class_to_shost(dev);
1943 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1944 struct lpfc_hba *phba = vport->phba;
1945 unsigned int cnt = count;
1948 * We're doing a simple sanity check for soft_wwpn setting.
1949 * We require that the user write a specific key to enable
1950 * the soft_wwpn attribute to be settable. Once the attribute
1951 * is written, the enable key resets. If further updates are
1952 * desired, the key must be written again to re-enable the
1955 * The "key" is not secret - it is a hardcoded string shown
1956 * here. The intent is to protect against the random user or
1957 * application that is just writing attributes.
1960 /* count may include a LF at end of string */
1961 if (buf[cnt-1] == '\n')
1964 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
1965 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
1968 phba->soft_wwn_enable = 1;
1971 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
1972 lpfc_soft_wwn_enable_store);
1975 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
1976 * @dev: class device that is converted into a Scsi_host.
1977 * @attr: device attribute, not used.
1978 * @buf: on return contains the wwpn in hexadecimal.
1980 * Returns: size of formatted string.
1983 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
1986 struct Scsi_Host *shost = class_to_shost(dev);
1987 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1988 struct lpfc_hba *phba = vport->phba;
1990 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
1991 (unsigned long long)phba->cfg_soft_wwpn);
1995 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
1996 * @dev class device that is converted into a Scsi_host.
1997 * @attr: device attribute, not used.
1998 * @buf: contains the wwpn in hexadecimal.
1999 * @count: number of wwpn bytes in buf
2002 * -EACCES hba reset not enabled, adapter over temp
2003 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
2004 * -EIO error taking adapter offline or online
2005 * value of count on success
2008 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
2009 const char *buf, size_t count)
2011 struct Scsi_Host *shost = class_to_shost(dev);
2012 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2013 struct lpfc_hba *phba = vport->phba;
2014 struct completion online_compl;
2015 int stat1=0, stat2=0;
2016 unsigned int i, j, cnt=count;
2020 if (!phba->cfg_enable_hba_reset)
2022 spin_lock_irq(&phba->hbalock);
2023 if (phba->over_temp_state == HBA_OVER_TEMP) {
2024 spin_unlock_irq(&phba->hbalock);
2027 spin_unlock_irq(&phba->hbalock);
2028 /* count may include a LF at end of string */
2029 if (buf[cnt-1] == '\n')
2032 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
2033 ((cnt == 17) && (*buf++ != 'x')) ||
2034 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
2037 phba->soft_wwn_enable = 0;
2039 memset(wwpn, 0, sizeof(wwpn));
2041 /* Validate and store the new name */
2042 for (i=0, j=0; i < 16; i++) {
2045 value = hex_to_bin(*buf++);
2047 j = (j << 4) | value;
2051 wwpn[i/2] = j & 0xff;
2055 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
2056 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
2057 if (phba->cfg_soft_wwnn)
2058 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
2060 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2061 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
2063 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
2065 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2066 "0463 lpfc_soft_wwpn attribute set failed to "
2067 "reinit adapter - %d\n", stat1);
2068 init_completion(&online_compl);
2069 rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
2074 wait_for_completion(&online_compl);
2076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2077 "0464 lpfc_soft_wwpn attribute set failed to "
2078 "reinit adapter - %d\n", stat2);
2079 return (stat1 || stat2) ? -EIO : count;
2081 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
2082 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
2085 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
2086 * @dev: class device that is converted into a Scsi_host.
2087 * @attr: device attribute, not used.
2088 * @buf: on return contains the wwnn in hexadecimal.
2090 * Returns: size of formatted string.
2093 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
2096 struct Scsi_Host *shost = class_to_shost(dev);
2097 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2098 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2099 (unsigned long long)phba->cfg_soft_wwnn);
2103 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
2104 * @cdev: class device that is converted into a Scsi_host.
2105 * @buf: contains the ww node name in hexadecimal.
2106 * @count: number of wwnn bytes in buf.
2109 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
2110 * value of count on success
2113 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
2114 const char *buf, size_t count)
2116 struct Scsi_Host *shost = class_to_shost(dev);
2117 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2118 unsigned int i, j, cnt=count;
2121 /* count may include a LF at end of string */
2122 if (buf[cnt-1] == '\n')
2125 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
2126 ((cnt == 17) && (*buf++ != 'x')) ||
2127 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
2131 * Allow wwnn to be set many times, as long as the enable is set.
2132 * However, once the wwpn is set, everything locks.
2135 memset(wwnn, 0, sizeof(wwnn));
2137 /* Validate and store the new name */
2138 for (i=0, j=0; i < 16; i++) {
2141 value = hex_to_bin(*buf++);
2143 j = (j << 4) | value;
2147 wwnn[i/2] = j & 0xff;
2151 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
2153 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2154 "lpfc%d: soft_wwnn set. Value will take effect upon "
2155 "setting of the soft_wwpn\n", phba->brd_no);
2159 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
2160 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
2163 static int lpfc_poll = 0;
2164 module_param(lpfc_poll, int, S_IRUGO);
2165 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
2167 " 1 - poll with interrupts enabled"
2168 " 3 - poll and disable FCP ring interrupts");
2170 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
2171 lpfc_poll_show, lpfc_poll_store);
2173 int lpfc_sli_mode = 0;
2174 module_param(lpfc_sli_mode, int, S_IRUGO);
2175 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
2176 " 0 - auto (SLI-3 if supported),"
2177 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
2178 " 3 - select SLI-3");
2180 int lpfc_enable_npiv = 1;
2181 module_param(lpfc_enable_npiv, int, S_IRUGO);
2182 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
2183 lpfc_param_show(enable_npiv);
2184 lpfc_param_init(enable_npiv, 1, 0, 1);
2185 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
2187 int lpfc_enable_rrq;
2188 module_param(lpfc_enable_rrq, int, S_IRUGO);
2189 MODULE_PARM_DESC(lpfc_enable_rrq, "Enable RRQ functionality");
2190 lpfc_param_show(enable_rrq);
2191 lpfc_param_init(enable_rrq, 0, 0, 1);
2192 static DEVICE_ATTR(lpfc_enable_rrq, S_IRUGO, lpfc_enable_rrq_show, NULL);
2195 # lpfc_suppress_link_up: Bring link up at initialization
2196 # 0x0 = bring link up (issue MBX_INIT_LINK)
2197 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
2198 # 0x2 = never bring up link
2199 # Default value is 0.
2201 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
2202 LPFC_DELAY_INIT_LINK_INDEFINITELY,
2203 "Suppress Link Up at initialization");
2205 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
2213 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2215 struct Scsi_Host *shost = class_to_shost(dev);
2216 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2218 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
2221 static DEVICE_ATTR(iocb_hw, S_IRUGO,
2222 lpfc_iocb_hw_show, NULL);
2224 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2226 struct Scsi_Host *shost = class_to_shost(dev);
2227 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2229 return snprintf(buf, PAGE_SIZE, "%d\n",
2230 phba->sli.ring[LPFC_ELS_RING].txq_max);
2233 static DEVICE_ATTR(txq_hw, S_IRUGO,
2234 lpfc_txq_hw_show, NULL);
2236 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
2239 struct Scsi_Host *shost = class_to_shost(dev);
2240 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2242 return snprintf(buf, PAGE_SIZE, "%d\n",
2243 phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
2246 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
2247 lpfc_txcmplq_hw_show, NULL);
2249 int lpfc_iocb_cnt = 2;
2250 module_param(lpfc_iocb_cnt, int, S_IRUGO);
2251 MODULE_PARM_DESC(lpfc_iocb_cnt,
2252 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
2253 lpfc_param_show(iocb_cnt);
2254 lpfc_param_init(iocb_cnt, 2, 1, 5);
2255 static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO,
2256 lpfc_iocb_cnt_show, NULL);
2259 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
2260 # until the timer expires. Value range is [0,255]. Default value is 30.
2262 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2263 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
2264 module_param(lpfc_nodev_tmo, int, 0);
2265 MODULE_PARM_DESC(lpfc_nodev_tmo,
2266 "Seconds driver will hold I/O waiting "
2267 "for a device to come back");
2270 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2271 * @dev: class converted to a Scsi_host structure.
2272 * @attr: device attribute, not used.
2273 * @buf: on return contains the dev loss timeout in decimal.
2275 * Returns: size of formatted string.
2278 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
2281 struct Scsi_Host *shost = class_to_shost(dev);
2282 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2284 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
2288 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2289 * @vport: lpfc vport structure pointer.
2290 * @val: contains the nodev timeout value.
2293 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
2294 * a kernel error message is printed and zero is returned.
2295 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2296 * Otherwise nodev tmo is set to the default value.
2299 * zero if already set or if val is in range
2300 * -EINVAL val out of range
2303 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
2305 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
2306 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
2307 if (val != LPFC_DEF_DEVLOSS_TMO)
2308 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2309 "0407 Ignoring nodev_tmo module "
2310 "parameter because devloss_tmo is "
2315 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2316 vport->cfg_nodev_tmo = val;
2317 vport->cfg_devloss_tmo = val;
2320 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2321 "0400 lpfc_nodev_tmo attribute cannot be set to"
2322 " %d, allowed range is [%d, %d]\n",
2323 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2324 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2329 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2330 * @vport: lpfc vport structure pointer.
2333 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
2336 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2338 struct Scsi_Host *shost;
2339 struct lpfc_nodelist *ndlp;
2341 shost = lpfc_shost_from_vport(vport);
2342 spin_lock_irq(shost->host_lock);
2343 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2344 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2345 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
2346 spin_unlock_irq(shost->host_lock);
2350 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2351 * @vport: lpfc vport structure pointer.
2352 * @val: contains the tmo value.
2355 * If the devloss tmo is already set or the vport dev loss tmo has changed
2356 * then a kernel error message is printed and zero is returned.
2357 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2358 * Otherwise nodev tmo is set to the default value.
2361 * zero if already set or if val is in range
2362 * -EINVAL val out of range
2365 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2367 if (vport->dev_loss_tmo_changed ||
2368 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2369 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2370 "0401 Ignoring change to nodev_tmo "
2371 "because devloss_tmo is set.\n");
2374 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2375 vport->cfg_nodev_tmo = val;
2376 vport->cfg_devloss_tmo = val;
2378 * For compat: set the fc_host dev loss so new rports
2379 * will get the value.
2381 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2382 lpfc_update_rport_devloss_tmo(vport);
2385 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2386 "0403 lpfc_nodev_tmo attribute cannot be set to"
2387 "%d, allowed range is [%d, %d]\n",
2388 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2392 lpfc_vport_param_store(nodev_tmo)
2394 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
2395 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
2398 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
2399 # disappear until the timer expires. Value range is [0,255]. Default
2402 module_param(lpfc_devloss_tmo, int, S_IRUGO);
2403 MODULE_PARM_DESC(lpfc_devloss_tmo,
2404 "Seconds driver will hold I/O waiting "
2405 "for a device to come back");
2406 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
2407 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
2408 lpfc_vport_param_show(devloss_tmo)
2411 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
2412 * @vport: lpfc vport structure pointer.
2413 * @val: contains the tmo value.
2416 * If val is in a valid range then set the vport nodev tmo,
2417 * devloss tmo, also set the vport dev loss tmo changed flag.
2418 * Else a kernel error message is printed.
2421 * zero if val is in range
2422 * -EINVAL val out of range
2425 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
2427 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2428 vport->cfg_nodev_tmo = val;
2429 vport->cfg_devloss_tmo = val;
2430 vport->dev_loss_tmo_changed = 1;
2431 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2432 lpfc_update_rport_devloss_tmo(vport);
2436 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2437 "0404 lpfc_devloss_tmo attribute cannot be set to"
2438 " %d, allowed range is [%d, %d]\n",
2439 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2443 lpfc_vport_param_store(devloss_tmo)
2444 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
2445 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
2448 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
2449 # deluged with LOTS of information.
2450 # You can set a bit mask to record specific types of verbose messages:
2451 # See lpfc_logmsh.h for definitions.
2453 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
2454 "Verbose logging bit-mask");
2457 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
2458 # objects that have been registered with the nameserver after login.
2460 LPFC_VPORT_ATTR_R(enable_da_id, 0, 0, 1,
2461 "Deregister nameserver objects before LOGO");
2464 # lun_queue_depth: This parameter is used to limit the number of outstanding
2465 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
2467 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
2468 "Max number of FCP commands we can queue to a specific LUN");
2471 # tgt_queue_depth: This parameter is used to limit the number of outstanding
2472 # commands per target port. Value range is [10,65535]. Default value is 65535.
2474 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
2475 "Max number of FCP commands we can queue to a specific target port");
2478 # hba_queue_depth: This parameter is used to limit the number of outstanding
2479 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
2480 # value is greater than the maximum number of exchanges supported by the HBA,
2481 # then maximum number of exchanges supported by the HBA is used to determine
2482 # the hba_queue_depth.
2484 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
2485 "Max number of FCP commands we can queue to a lpfc HBA");
2488 # peer_port_login: This parameter allows/prevents logins
2489 # between peer ports hosted on the same physical port.
2490 # When this parameter is set 0 peer ports of same physical port
2491 # are not allowed to login to each other.
2492 # When this parameter is set 1 peer ports of same physical port
2493 # are allowed to login to each other.
2494 # Default value of this parameter is 0.
2496 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
2497 "Allow peer ports on the same physical port to login to each "
2501 # restrict_login: This parameter allows/prevents logins
2502 # between Virtual Ports and remote initiators.
2503 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
2504 # other initiators and will attempt to PLOGI all remote ports.
2505 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
2506 # remote ports and will not attempt to PLOGI to other initiators.
2507 # This parameter does not restrict to the physical port.
2508 # This parameter does not restrict logins to Fabric resident remote ports.
2509 # Default value of this parameter is 1.
2511 static int lpfc_restrict_login = 1;
2512 module_param(lpfc_restrict_login, int, S_IRUGO);
2513 MODULE_PARM_DESC(lpfc_restrict_login,
2514 "Restrict virtual ports login to remote initiators.");
2515 lpfc_vport_param_show(restrict_login);
2518 * lpfc_restrict_login_init - Set the vport restrict login flag
2519 * @vport: lpfc vport structure pointer.
2520 * @val: contains the restrict login value.
2523 * If val is not in a valid range then log a kernel error message and set
2524 * the vport restrict login to one.
2525 * If the port type is physical clear the restrict login flag and return.
2526 * Else set the restrict login flag to val.
2529 * zero if val is in range
2530 * -EINVAL val out of range
2533 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
2535 if (val < 0 || val > 1) {
2536 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2537 "0422 lpfc_restrict_login attribute cannot "
2538 "be set to %d, allowed range is [0, 1]\n",
2540 vport->cfg_restrict_login = 1;
2543 if (vport->port_type == LPFC_PHYSICAL_PORT) {
2544 vport->cfg_restrict_login = 0;
2547 vport->cfg_restrict_login = val;
2552 * lpfc_restrict_login_set - Set the vport restrict login flag
2553 * @vport: lpfc vport structure pointer.
2554 * @val: contains the restrict login value.
2557 * If val is not in a valid range then log a kernel error message and set
2558 * the vport restrict login to one.
2559 * If the port type is physical and the val is not zero log a kernel
2560 * error message, clear the restrict login flag and return zero.
2561 * Else set the restrict login flag to val.
2564 * zero if val is in range
2565 * -EINVAL val out of range
2568 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
2570 if (val < 0 || val > 1) {
2571 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2572 "0425 lpfc_restrict_login attribute cannot "
2573 "be set to %d, allowed range is [0, 1]\n",
2575 vport->cfg_restrict_login = 1;
2578 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
2579 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2580 "0468 lpfc_restrict_login must be 0 for "
2581 "Physical ports.\n");
2582 vport->cfg_restrict_login = 0;
2585 vport->cfg_restrict_login = val;
2588 lpfc_vport_param_store(restrict_login);
2589 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
2590 lpfc_restrict_login_show, lpfc_restrict_login_store);
2593 # Some disk devices have a "select ID" or "select Target" capability.
2594 # From a protocol standpoint "select ID" usually means select the
2595 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
2596 # annex" which contains a table that maps a "select ID" (a number
2597 # between 0 and 7F) to an ALPA. By default, for compatibility with
2598 # older drivers, the lpfc driver scans this table from low ALPA to high
2601 # Turning on the scan-down variable (on = 1, off = 0) will
2602 # cause the lpfc driver to use an inverted table, effectively
2603 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
2605 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
2606 # and will not work across a fabric. Also this parameter will take
2607 # effect only in the case when ALPA map is not available.)
2609 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
2610 "Start scanning for devices from highest ALPA to lowest");
2613 # lpfc_topology: link topology for init link
2614 # 0x0 = attempt loop mode then point-to-point
2615 # 0x01 = internal loopback mode
2616 # 0x02 = attempt point-to-point mode only
2617 # 0x04 = attempt loop mode only
2618 # 0x06 = attempt point-to-point mode then loop
2619 # Set point-to-point mode if you want to run as an N_Port.
2620 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
2621 # Default value is 0.
2625 * lpfc_topology_set - Set the adapters topology field
2626 * @phba: lpfc_hba pointer.
2627 * @val: topology value.
2630 * If val is in a valid range then set the adapter's topology field and
2631 * issue a lip; if the lip fails reset the topology to the old value.
2633 * If the value is not in range log a kernel error message and return an error.
2636 * zero if val is in range and lip okay
2637 * non-zero return value from lpfc_issue_lip()
2638 * -EINVAL val out of range
2641 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
2642 const char *buf, size_t count)
2644 struct Scsi_Host *shost = class_to_shost(dev);
2645 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2646 struct lpfc_hba *phba = vport->phba;
2649 const char *val_buf = buf;
2653 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
2655 val_buf = &buf[strlen("nolip ")];
2658 if (!isdigit(val_buf[0]))
2660 if (sscanf(val_buf, "%i", &val) != 1)
2663 if (val >= 0 && val <= 6) {
2664 prev_val = phba->cfg_topology;
2665 phba->cfg_topology = val;
2669 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2670 "3054 lpfc_topology changed from %d to %d\n",
2672 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
2674 phba->cfg_topology = prev_val;
2679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2680 "%d:0467 lpfc_topology attribute cannot be set to %d, "
2681 "allowed range is [0, 6]\n",
2685 static int lpfc_topology = 0;
2686 module_param(lpfc_topology, int, S_IRUGO);
2687 MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
2688 lpfc_param_show(topology)
2689 lpfc_param_init(topology, 0, 0, 6)
2690 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
2691 lpfc_topology_show, lpfc_topology_store);
2694 * lpfc_static_vport_show: Read callback function for
2695 * lpfc_static_vport sysfs file.
2696 * @dev: Pointer to class device object.
2697 * @attr: device attribute structure.
2698 * @buf: Data buffer.
2700 * This function is the read call back function for
2701 * lpfc_static_vport sysfs file. The lpfc_static_vport
2702 * sysfs file report the mageability of the vport.
2705 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
2708 struct Scsi_Host *shost = class_to_shost(dev);
2709 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2710 if (vport->vport_flag & STATIC_VPORT)
2711 sprintf(buf, "1\n");
2713 sprintf(buf, "0\n");
2719 * Sysfs attribute to control the statistical data collection.
2721 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
2722 lpfc_static_vport_show, NULL);
2725 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
2726 * @dev: Pointer to class device.
2727 * @buf: Data buffer.
2728 * @count: Size of the data buffer.
2730 * This function get called when an user write to the lpfc_stat_data_ctrl
2731 * sysfs file. This function parse the command written to the sysfs file
2732 * and take appropriate action. These commands are used for controlling
2733 * driver statistical data collection.
2734 * Following are the command this function handles.
2736 * setbucket <bucket_type> <base> <step>
2737 * = Set the latency buckets.
2738 * destroybucket = destroy all the buckets.
2739 * start = start data collection
2740 * stop = stop data collection
2741 * reset = reset the collected data
2744 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
2745 const char *buf, size_t count)
2747 struct Scsi_Host *shost = class_to_shost(dev);
2748 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2749 struct lpfc_hba *phba = vport->phba;
2750 #define LPFC_MAX_DATA_CTRL_LEN 1024
2751 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
2753 char *str_ptr, *token;
2754 struct lpfc_vport **vports;
2755 struct Scsi_Host *v_shost;
2756 char *bucket_type_str, *base_str, *step_str;
2757 unsigned long base, step, bucket_type;
2759 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
2760 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
2763 strcpy(bucket_data, buf);
2764 str_ptr = &bucket_data[0];
2765 /* Ignore this token - this is command token */
2766 token = strsep(&str_ptr, "\t ");
2770 bucket_type_str = strsep(&str_ptr, "\t ");
2771 if (!bucket_type_str)
2774 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
2775 bucket_type = LPFC_LINEAR_BUCKET;
2776 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
2777 bucket_type = LPFC_POWER2_BUCKET;
2781 base_str = strsep(&str_ptr, "\t ");
2784 base = simple_strtoul(base_str, NULL, 0);
2786 step_str = strsep(&str_ptr, "\t ");
2789 step = simple_strtoul(step_str, NULL, 0);
2793 /* Block the data collection for every vport */
2794 vports = lpfc_create_vport_work_array(phba);
2798 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2799 v_shost = lpfc_shost_from_vport(vports[i]);
2800 spin_lock_irq(v_shost->host_lock);
2801 /* Block and reset data collection */
2802 vports[i]->stat_data_blocked = 1;
2803 if (vports[i]->stat_data_enabled)
2804 lpfc_vport_reset_stat_data(vports[i]);
2805 spin_unlock_irq(v_shost->host_lock);
2808 /* Set the bucket attributes */
2809 phba->bucket_type = bucket_type;
2810 phba->bucket_base = base;
2811 phba->bucket_step = step;
2813 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2814 v_shost = lpfc_shost_from_vport(vports[i]);
2816 /* Unblock data collection */
2817 spin_lock_irq(v_shost->host_lock);
2818 vports[i]->stat_data_blocked = 0;
2819 spin_unlock_irq(v_shost->host_lock);
2821 lpfc_destroy_vport_work_array(phba, vports);
2825 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
2826 vports = lpfc_create_vport_work_array(phba);
2830 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2831 v_shost = lpfc_shost_from_vport(vports[i]);
2832 spin_lock_irq(shost->host_lock);
2833 vports[i]->stat_data_blocked = 1;
2834 lpfc_free_bucket(vport);
2835 vport->stat_data_enabled = 0;
2836 vports[i]->stat_data_blocked = 0;
2837 spin_unlock_irq(shost->host_lock);
2839 lpfc_destroy_vport_work_array(phba, vports);
2840 phba->bucket_type = LPFC_NO_BUCKET;
2841 phba->bucket_base = 0;
2842 phba->bucket_step = 0;
2846 if (!strncmp(buf, "start", strlen("start"))) {
2847 /* If no buckets configured return error */
2848 if (phba->bucket_type == LPFC_NO_BUCKET)
2850 spin_lock_irq(shost->host_lock);
2851 if (vport->stat_data_enabled) {
2852 spin_unlock_irq(shost->host_lock);
2855 lpfc_alloc_bucket(vport);
2856 vport->stat_data_enabled = 1;
2857 spin_unlock_irq(shost->host_lock);
2861 if (!strncmp(buf, "stop", strlen("stop"))) {
2862 spin_lock_irq(shost->host_lock);
2863 if (vport->stat_data_enabled == 0) {
2864 spin_unlock_irq(shost->host_lock);
2867 lpfc_free_bucket(vport);
2868 vport->stat_data_enabled = 0;
2869 spin_unlock_irq(shost->host_lock);
2873 if (!strncmp(buf, "reset", strlen("reset"))) {
2874 if ((phba->bucket_type == LPFC_NO_BUCKET)
2875 || !vport->stat_data_enabled)
2877 spin_lock_irq(shost->host_lock);
2878 vport->stat_data_blocked = 1;
2879 lpfc_vport_reset_stat_data(vport);
2880 vport->stat_data_blocked = 0;
2881 spin_unlock_irq(shost->host_lock);
2889 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
2890 * @dev: Pointer to class device object.
2891 * @buf: Data buffer.
2893 * This function is the read call back function for
2894 * lpfc_stat_data_ctrl sysfs file. This function report the
2895 * current statistical data collection state.
2898 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
2901 struct Scsi_Host *shost = class_to_shost(dev);
2902 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2903 struct lpfc_hba *phba = vport->phba;
2907 unsigned long bucket_value;
2909 switch (phba->bucket_type) {
2910 case LPFC_LINEAR_BUCKET:
2911 bucket_type = "linear";
2913 case LPFC_POWER2_BUCKET:
2914 bucket_type = "power2";
2917 bucket_type = "No Bucket";
2921 sprintf(&buf[index], "Statistical Data enabled :%d, "
2922 "blocked :%d, Bucket type :%s, Bucket base :%d,"
2923 " Bucket step :%d\nLatency Ranges :",
2924 vport->stat_data_enabled, vport->stat_data_blocked,
2925 bucket_type, phba->bucket_base, phba->bucket_step);
2926 index = strlen(buf);
2927 if (phba->bucket_type != LPFC_NO_BUCKET) {
2928 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2929 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
2930 bucket_value = phba->bucket_base +
2931 phba->bucket_step * i;
2933 bucket_value = phba->bucket_base +
2934 (1 << i) * phba->bucket_step;
2936 if (index + 10 > PAGE_SIZE)
2938 sprintf(&buf[index], "%08ld ", bucket_value);
2939 index = strlen(buf);
2942 sprintf(&buf[index], "\n");
2947 * Sysfs attribute to control the statistical data collection.
2949 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
2950 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
2953 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
2957 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
2960 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
2961 #define MAX_STAT_DATA_SIZE_PER_TARGET \
2962 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
2966 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
2968 * @kobj: Pointer to the kernel object
2969 * @bin_attr: Attribute object
2970 * @buff: Buffer pointer
2972 * @count: Buffer size
2974 * This function is the read call back function for lpfc_drvr_stat_data
2975 * sysfs file. This function export the statistical data to user
2979 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
2980 struct bin_attribute *bin_attr,
2981 char *buf, loff_t off, size_t count)
2983 struct device *dev = container_of(kobj, struct device,
2985 struct Scsi_Host *shost = class_to_shost(dev);
2986 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2987 struct lpfc_hba *phba = vport->phba;
2988 int i = 0, index = 0;
2989 unsigned long nport_index;
2990 struct lpfc_nodelist *ndlp = NULL;
2991 nport_index = (unsigned long)off /
2992 MAX_STAT_DATA_SIZE_PER_TARGET;
2994 if (!vport->stat_data_enabled || vport->stat_data_blocked
2995 || (phba->bucket_type == LPFC_NO_BUCKET))
2998 spin_lock_irq(shost->host_lock);
2999 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3000 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
3003 if (nport_index > 0) {
3008 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
3012 if (!ndlp->lat_data)
3016 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
3017 ndlp->nlp_portname.u.wwn[0],
3018 ndlp->nlp_portname.u.wwn[1],
3019 ndlp->nlp_portname.u.wwn[2],
3020 ndlp->nlp_portname.u.wwn[3],
3021 ndlp->nlp_portname.u.wwn[4],
3022 ndlp->nlp_portname.u.wwn[5],
3023 ndlp->nlp_portname.u.wwn[6],
3024 ndlp->nlp_portname.u.wwn[7]);
3026 index = strlen(buf);
3028 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
3029 sprintf(&buf[index], "%010u,",
3030 ndlp->lat_data[i].cmd_count);
3031 index = strlen(buf);
3033 sprintf(&buf[index], "\n");
3034 index = strlen(buf);
3036 spin_unlock_irq(shost->host_lock);
3040 static struct bin_attribute sysfs_drvr_stat_data_attr = {
3042 .name = "lpfc_drvr_stat_data",
3045 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
3046 .read = sysfs_drvr_stat_data_read,
3051 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
3053 # Value range is [0,16]. Default value is 0.
3056 * lpfc_link_speed_set - Set the adapters link speed
3057 * @phba: lpfc_hba pointer.
3058 * @val: link speed value.
3061 * If val is in a valid range then set the adapter's link speed field and
3062 * issue a lip; if the lip fails reset the link speed to the old value.
3065 * If the value is not in range log a kernel error message and return an error.
3068 * zero if val is in range and lip okay.
3069 * non-zero return value from lpfc_issue_lip()
3070 * -EINVAL val out of range
3073 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
3074 const char *buf, size_t count)
3076 struct Scsi_Host *shost = class_to_shost(dev);
3077 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3078 struct lpfc_hba *phba = vport->phba;
3079 int val = LPFC_USER_LINK_SPEED_AUTO;
3081 const char *val_buf = buf;
3085 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
3087 val_buf = &buf[strlen("nolip ")];
3090 if (!isdigit(val_buf[0]))
3092 if (sscanf(val_buf, "%i", &val) != 1)
3095 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3096 "3055 lpfc_link_speed changed from %d to %d %s\n",
3097 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
3099 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
3100 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
3101 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
3102 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
3103 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
3104 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb))) {
3105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3106 "2879 lpfc_link_speed attribute cannot be set "
3107 "to %d. Speed is not supported by this port.\n",
3111 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3112 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3113 prev_val = phba->cfg_link_speed;
3114 phba->cfg_link_speed = val;
3118 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3120 phba->cfg_link_speed = prev_val;
3125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3126 "0469 lpfc_link_speed attribute cannot be set to %d, "
3127 "allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val);
3131 static int lpfc_link_speed = 0;
3132 module_param(lpfc_link_speed, int, S_IRUGO);
3133 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
3134 lpfc_param_show(link_speed)
3137 * lpfc_link_speed_init - Set the adapters link speed
3138 * @phba: lpfc_hba pointer.
3139 * @val: link speed value.
3142 * If val is in a valid range then set the adapter's link speed field.
3145 * If the value is not in range log a kernel error message, clear the link
3146 * speed and return an error.
3149 * zero if val saved.
3150 * -EINVAL val out of range
3153 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
3155 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3156 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3157 phba->cfg_link_speed = val;
3160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3161 "0405 lpfc_link_speed attribute cannot "
3162 "be set to %d, allowed values are "
3163 "["LPFC_LINK_SPEED_STRING"]\n", val);
3164 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
3168 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
3169 lpfc_link_speed_show, lpfc_link_speed_store);
3172 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
3173 # 0 = aer disabled or not supported
3174 # 1 = aer supported and enabled (default)
3175 # Value range is [0,1]. Default value is 1.
3179 * lpfc_aer_support_store - Set the adapter for aer support
3181 * @dev: class device that is converted into a Scsi_host.
3182 * @attr: device attribute, not used.
3183 * @buf: containing enable or disable aer flag.
3184 * @count: unused variable.
3187 * If the val is 1 and currently the device's AER capability was not
3188 * enabled, invoke the kernel's enable AER helper routine, trying to
3189 * enable the device's AER capability. If the helper routine enabling
3190 * AER returns success, update the device's cfg_aer_support flag to
3191 * indicate AER is supported by the device; otherwise, if the device
3192 * AER capability is already enabled to support AER, then do nothing.
3194 * If the val is 0 and currently the device's AER support was enabled,
3195 * invoke the kernel's disable AER helper routine. After that, update
3196 * the device's cfg_aer_support flag to indicate AER is not supported
3197 * by the device; otherwise, if the device AER capability is already
3198 * disabled from supporting AER, then do nothing.
3201 * length of the buf on success if val is in range the intended mode
3203 * -EINVAL if val out of range or intended mode is not supported.
3206 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
3207 const char *buf, size_t count)
3209 struct Scsi_Host *shost = class_to_shost(dev);
3210 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
3211 struct lpfc_hba *phba = vport->phba;
3212 int val = 0, rc = -EINVAL;
3214 if (!isdigit(buf[0]))
3216 if (sscanf(buf, "%i", &val) != 1)
3221 if (phba->hba_flag & HBA_AER_ENABLED) {
3222 rc = pci_disable_pcie_error_reporting(phba->pcidev);
3224 spin_lock_irq(&phba->hbalock);
3225 phba->hba_flag &= ~HBA_AER_ENABLED;
3226 spin_unlock_irq(&phba->hbalock);
3227 phba->cfg_aer_support = 0;
3232 phba->cfg_aer_support = 0;
3237 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
3238 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3240 spin_lock_irq(&phba->hbalock);
3241 phba->hba_flag |= HBA_AER_ENABLED;
3242 spin_unlock_irq(&phba->hbalock);
3243 phba->cfg_aer_support = 1;
3248 phba->cfg_aer_support = 1;
3259 static int lpfc_aer_support = 1;
3260 module_param(lpfc_aer_support, int, S_IRUGO);
3261 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
3262 lpfc_param_show(aer_support)
3265 * lpfc_aer_support_init - Set the initial adapters aer support flag
3266 * @phba: lpfc_hba pointer.
3267 * @val: enable aer or disable aer flag.
3270 * If val is in a valid range [0,1], then set the adapter's initial
3271 * cfg_aer_support field. It will be up to the driver's probe_one
3272 * routine to determine whether the device's AER support can be set
3276 * If the value is not in range log a kernel error message, and
3277 * choose the default value of setting AER support and return.
3280 * zero if val saved.
3281 * -EINVAL val out of range
3284 lpfc_aer_support_init(struct lpfc_hba *phba, int val)
3286 if (val == 0 || val == 1) {
3287 phba->cfg_aer_support = val;
3290 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3291 "2712 lpfc_aer_support attribute value %d out "
3292 "of range, allowed values are 0|1, setting it "
3293 "to default value of 1\n", val);
3294 /* By default, try to enable AER on a device */
3295 phba->cfg_aer_support = 1;
3299 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
3300 lpfc_aer_support_show, lpfc_aer_support_store);
3303 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
3304 * @dev: class device that is converted into a Scsi_host.
3305 * @attr: device attribute, not used.
3306 * @buf: containing flag 1 for aer cleanup state.
3307 * @count: unused variable.
3310 * If the @buf contains 1 and the device currently has the AER support
3311 * enabled, then invokes the kernel AER helper routine
3312 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
3313 * error status register.
3318 * -EINVAL if the buf does not contain the 1 or the device is not currently
3319 * enabled with the AER support.
3322 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
3323 const char *buf, size_t count)
3325 struct Scsi_Host *shost = class_to_shost(dev);
3326 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3327 struct lpfc_hba *phba = vport->phba;
3330 if (!isdigit(buf[0]))
3332 if (sscanf(buf, "%i", &val) != 1)
3337 if (phba->hba_flag & HBA_AER_ENABLED)
3338 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
3346 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
3347 lpfc_aer_cleanup_state);
3350 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
3352 * @dev: class device that is converted into a Scsi_host.
3353 * @attr: device attribute, not used.
3354 * @buf: containing the string the number of vfs to be enabled.
3355 * @count: unused variable.
3358 * When this api is called either through user sysfs, the driver shall
3359 * try to enable or disable SR-IOV virtual functions according to the
3362 * If zero virtual function has been enabled to the physical function,
3363 * the driver shall invoke the pci enable virtual function api trying
3364 * to enable the virtual functions. If the nr_vfn provided is greater
3365 * than the maximum supported, the maximum virtual function number will
3366 * be used for invoking the api; otherwise, the nr_vfn provided shall
3367 * be used for invoking the api. If the api call returned success, the
3368 * actual number of virtual functions enabled will be set to the driver
3369 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
3370 * cfg_sriov_nr_virtfn remains zero.
3372 * If none-zero virtual functions have already been enabled to the
3373 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
3374 * -EINVAL will be returned and the driver does nothing;
3376 * If the nr_vfn provided is zero and none-zero virtual functions have
3377 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
3378 * disabling virtual function api shall be invoded to disable all the
3379 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
3380 * zero. Otherwise, if zero virtual function has been enabled, do
3384 * length of the buf on success if val is in range the intended mode
3386 * -EINVAL if val out of range or intended mode is not supported.
3389 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
3390 const char *buf, size_t count)
3392 struct Scsi_Host *shost = class_to_shost(dev);
3393 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
3394 struct lpfc_hba *phba = vport->phba;
3395 struct pci_dev *pdev = phba->pcidev;
3396 int val = 0, rc = -EINVAL;
3398 /* Sanity check on user data */
3399 if (!isdigit(buf[0]))
3401 if (sscanf(buf, "%i", &val) != 1)
3406 /* Request disabling virtual functions */
3408 if (phba->cfg_sriov_nr_virtfn > 0) {
3409 pci_disable_sriov(pdev);
3410 phba->cfg_sriov_nr_virtfn = 0;
3415 /* Request enabling virtual functions */
3416 if (phba->cfg_sriov_nr_virtfn > 0) {
3417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3418 "3018 There are %d virtual functions "
3419 "enabled on physical function.\n",
3420 phba->cfg_sriov_nr_virtfn);
3424 if (val <= LPFC_MAX_VFN_PER_PFN)
3425 phba->cfg_sriov_nr_virtfn = val;
3427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3428 "3019 Enabling %d virtual functions is not "
3433 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
3435 phba->cfg_sriov_nr_virtfn = 0;
3443 static int lpfc_sriov_nr_virtfn = LPFC_DEF_VFN_PER_PFN;
3444 module_param(lpfc_sriov_nr_virtfn, int, S_IRUGO|S_IWUSR);
3445 MODULE_PARM_DESC(lpfc_sriov_nr_virtfn, "Enable PCIe device SR-IOV virtual fn");
3446 lpfc_param_show(sriov_nr_virtfn)
3449 * lpfc_sriov_nr_virtfn_init - Set the initial sr-iov virtual function enable
3450 * @phba: lpfc_hba pointer.
3451 * @val: link speed value.
3454 * If val is in a valid range [0,255], then set the adapter's initial
3455 * cfg_sriov_nr_virtfn field. If it's greater than the maximum, the maximum
3456 * number shall be used instead. It will be up to the driver's probe_one
3457 * routine to determine whether the device's SR-IOV is supported or not.
3460 * zero if val saved.
3461 * -EINVAL val out of range
3464 lpfc_sriov_nr_virtfn_init(struct lpfc_hba *phba, int val)
3466 if (val >= 0 && val <= LPFC_MAX_VFN_PER_PFN) {
3467 phba->cfg_sriov_nr_virtfn = val;
3471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3472 "3017 Enabling %d virtual functions is not "
3476 static DEVICE_ATTR(lpfc_sriov_nr_virtfn, S_IRUGO | S_IWUSR,
3477 lpfc_sriov_nr_virtfn_show, lpfc_sriov_nr_virtfn_store);
3480 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
3481 # Value range is [2,3]. Default value is 3.
3483 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
3484 "Select Fibre Channel class of service for FCP sequences");
3487 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
3488 # is [0,1]. Default value is 0.
3490 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
3491 "Use ADISC on rediscovery to authenticate FCP devices");
3494 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
3495 # depth. Default value is 0. When the value of this parameter is zero the
3496 # SCSI command completion time is not used for controlling I/O queue depth. When
3497 # the parameter is set to a non-zero value, the I/O queue depth is controlled
3498 # to limit the I/O completion time to the parameter value.
3499 # The value is set in milliseconds.
3501 static int lpfc_max_scsicmpl_time;
3502 module_param(lpfc_max_scsicmpl_time, int, S_IRUGO);
3503 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
3504 "Use command completion time to control queue depth");
3505 lpfc_vport_param_show(max_scsicmpl_time);
3506 lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
3508 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
3510 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3511 struct lpfc_nodelist *ndlp, *next_ndlp;
3513 if (val == vport->cfg_max_scsicmpl_time)
3515 if ((val < 0) || (val > 60000))
3517 vport->cfg_max_scsicmpl_time = val;
3519 spin_lock_irq(shost->host_lock);
3520 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
3521 if (!NLP_CHK_NODE_ACT(ndlp))
3523 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3525 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
3527 spin_unlock_irq(shost->host_lock);
3530 lpfc_vport_param_store(max_scsicmpl_time);
3531 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
3532 lpfc_max_scsicmpl_time_show,
3533 lpfc_max_scsicmpl_time_store);
3536 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
3537 # range is [0,1]. Default value is 0.
3539 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
3542 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
3543 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
3544 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
3545 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
3546 # cr_delay is set to 0.
3548 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
3549 "interrupt response is generated");
3551 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
3552 "interrupt response is generated");
3555 # lpfc_multi_ring_support: Determines how many rings to spread available
3556 # cmd/rsp IOCB entries across.
3557 # Value range is [1,2]. Default value is 1.
3559 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
3560 "SLI rings to spread IOCB entries across");
3563 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
3564 # identifies what rctl value to configure the additional ring for.
3565 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
3567 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
3568 255, "Identifies RCTL for additional ring configuration");
3571 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
3572 # identifies what type value to configure the additional ring for.
3573 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
3575 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
3576 255, "Identifies TYPE for additional ring configuration");
3579 # lpfc_fdmi_on: controls FDMI support.
3580 # 0 = no FDMI support
3581 # 1 = support FDMI without attribute of hostname
3582 # 2 = support FDMI with attribute of hostname
3583 # Value range [0,2]. Default value is 0.
3585 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
3588 # Specifies the maximum number of ELS cmds we can have outstanding (for
3589 # discovery). Value range is [1,64]. Default value = 32.
3591 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
3592 "during discovery");
3595 # lpfc_max_luns: maximum allowed LUN.
3596 # Value range is [0,65535]. Default value is 255.
3597 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
3599 LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
3602 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
3603 # Value range is [1,255], default value is 10.
3605 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
3606 "Milliseconds driver will wait between polling FCP ring");
3609 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
3610 # support this feature
3613 # 2 = MSI-X enabled (default)
3614 # Value range is [0,2]. Default value is 2.
3616 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
3617 "MSI-X (2), if possible");
3620 # lpfc_fcp_imax: Set the maximum number of fast-path FCP interrupts per second
3622 # Value range is [636,651042]. Default value is 10000.
3624 LPFC_ATTR_R(fcp_imax, LPFC_FP_DEF_IMAX, LPFC_MIM_IMAX, LPFC_DMULT_CONST,
3625 "Set the maximum number of fast-path FCP interrupts per second");
3628 # lpfc_fcp_wq_count: Set the number of fast-path FCP work queues
3630 # Value range is [1,31]. Default value is 4.
3632 LPFC_ATTR_R(fcp_wq_count, LPFC_FP_WQN_DEF, LPFC_FP_WQN_MIN, LPFC_FP_WQN_MAX,
3633 "Set the number of fast-path FCP work queues, if possible");
3636 # lpfc_fcp_eq_count: Set the number of fast-path FCP event queues
3638 # Value range is [1,7]. Default value is 1.
3640 LPFC_ATTR_R(fcp_eq_count, LPFC_FP_EQN_DEF, LPFC_FP_EQN_MIN, LPFC_FP_EQN_MAX,
3641 "Set the number of fast-path FCP event queues, if possible");
3644 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
3645 # 0 = HBA resets disabled
3646 # 1 = HBA resets enabled (default)
3647 # Value range is [0,1]. Default value is 1.
3649 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
3652 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
3653 # 0 = HBA Heartbeat disabled
3654 # 1 = HBA Heartbeat enabled (default)
3655 # Value range is [0,1]. Default value is 1.
3657 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
3660 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
3661 # 0 = BlockGuard disabled (default)
3662 # 1 = BlockGuard enabled
3663 # Value range is [0,1]. Default value is 0.
3665 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
3669 # - Bit mask of host protection capabilities used to register with the
3671 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
3672 # - Allows you to ultimately specify which profiles to use
3673 # - Default will result in registering capabilities for all profiles.
3676 unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION |
3677 SHOST_DIX_TYPE0_PROTECTION |
3678 SHOST_DIX_TYPE1_PROTECTION;
3680 module_param(lpfc_prot_mask, uint, S_IRUGO);
3681 MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
3684 # lpfc_prot_guard: i
3685 # - Bit mask of protection guard types to register with the SCSI mid-layer
3686 # - Guard types are currently either 1) IP checksum 2) T10-DIF CRC
3687 # - Allows you to ultimately specify which profiles to use
3688 # - Default will result in registering capabilities for all guard types
3691 unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
3692 module_param(lpfc_prot_guard, byte, S_IRUGO);
3693 MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
3696 * Delay initial NPort discovery when Clean Address bit is cleared in
3697 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
3698 * This parameter can have value 0 or 1.
3699 * When this parameter is set to 0, no delay is added to the initial
3701 * When this parameter is set to non-zero value, initial Nport discovery is
3702 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
3703 * accept and FCID/Fabric name/Fabric portname is changed.
3704 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
3705 * when Clean Address bit is cleared in FLOGI/FDISC
3706 * accept and FCID/Fabric name/Fabric portname is changed.
3707 * Default value is 0.
3709 int lpfc_delay_discovery;
3710 module_param(lpfc_delay_discovery, int, S_IRUGO);
3711 MODULE_PARM_DESC(lpfc_delay_discovery,
3712 "Delay NPort discovery when Clean Address bit is cleared. "
3713 "Allowed values: 0,1.");
3716 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
3717 * This value can be set to values between 64 and 256. The default value is
3718 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
3719 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
3721 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
3722 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
3724 LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_PROT_SG_SEG_CNT,
3725 LPFC_DEFAULT_PROT_SG_SEG_CNT, LPFC_MAX_PROT_SG_SEG_CNT,
3726 "Max Protection Scatter Gather Segment Count");
3728 struct device_attribute *lpfc_hba_attrs[] = {
3730 &dev_attr_bg_guard_err,
3731 &dev_attr_bg_apptag_err,
3732 &dev_attr_bg_reftag_err,
3734 &dev_attr_serialnum,
3735 &dev_attr_modeldesc,
3736 &dev_attr_modelname,
3737 &dev_attr_programtype,
3741 &dev_attr_option_rom_version,
3742 &dev_attr_link_state,
3743 &dev_attr_num_discovered_ports,
3744 &dev_attr_menlo_mgmt_mode,
3745 &dev_attr_lpfc_drvr_version,
3746 &dev_attr_lpfc_enable_fip,
3747 &dev_attr_lpfc_temp_sensor,
3748 &dev_attr_lpfc_log_verbose,
3749 &dev_attr_lpfc_lun_queue_depth,
3750 &dev_attr_lpfc_tgt_queue_depth,
3751 &dev_attr_lpfc_hba_queue_depth,
3752 &dev_attr_lpfc_peer_port_login,
3753 &dev_attr_lpfc_nodev_tmo,
3754 &dev_attr_lpfc_devloss_tmo,
3755 &dev_attr_lpfc_fcp_class,
3756 &dev_attr_lpfc_use_adisc,
3757 &dev_attr_lpfc_ack0,
3758 &dev_attr_lpfc_topology,
3759 &dev_attr_lpfc_scan_down,
3760 &dev_attr_lpfc_link_speed,
3761 &dev_attr_lpfc_cr_delay,
3762 &dev_attr_lpfc_cr_count,
3763 &dev_attr_lpfc_multi_ring_support,
3764 &dev_attr_lpfc_multi_ring_rctl,
3765 &dev_attr_lpfc_multi_ring_type,
3766 &dev_attr_lpfc_fdmi_on,
3767 &dev_attr_lpfc_max_luns,
3768 &dev_attr_lpfc_enable_npiv,
3769 &dev_attr_lpfc_enable_rrq,
3770 &dev_attr_nport_evt_cnt,
3771 &dev_attr_board_mode,
3778 &dev_attr_npiv_info,
3779 &dev_attr_issue_reset,
3780 &dev_attr_lpfc_poll,
3781 &dev_attr_lpfc_poll_tmo,
3782 &dev_attr_lpfc_use_msi,
3783 &dev_attr_lpfc_fcp_imax,
3784 &dev_attr_lpfc_fcp_wq_count,
3785 &dev_attr_lpfc_fcp_eq_count,
3786 &dev_attr_lpfc_enable_bg,
3787 &dev_attr_lpfc_soft_wwnn,
3788 &dev_attr_lpfc_soft_wwpn,
3789 &dev_attr_lpfc_soft_wwn_enable,
3790 &dev_attr_lpfc_enable_hba_reset,
3791 &dev_attr_lpfc_enable_hba_heartbeat,
3792 &dev_attr_lpfc_sg_seg_cnt,
3793 &dev_attr_lpfc_max_scsicmpl_time,
3794 &dev_attr_lpfc_stat_data_ctrl,
3795 &dev_attr_lpfc_prot_sg_seg_cnt,
3796 &dev_attr_lpfc_aer_support,
3797 &dev_attr_lpfc_aer_state_cleanup,
3798 &dev_attr_lpfc_sriov_nr_virtfn,
3799 &dev_attr_lpfc_suppress_link_up,
3800 &dev_attr_lpfc_iocb_cnt,
3803 &dev_attr_txcmplq_hw,
3804 &dev_attr_lpfc_fips_level,
3805 &dev_attr_lpfc_fips_rev,
3807 &dev_attr_lpfc_sriov_hw_max_virtfn,
3811 struct device_attribute *lpfc_vport_attrs[] = {
3813 &dev_attr_link_state,
3814 &dev_attr_num_discovered_ports,
3815 &dev_attr_lpfc_drvr_version,
3816 &dev_attr_lpfc_log_verbose,
3817 &dev_attr_lpfc_lun_queue_depth,
3818 &dev_attr_lpfc_tgt_queue_depth,
3819 &dev_attr_lpfc_nodev_tmo,
3820 &dev_attr_lpfc_devloss_tmo,
3821 &dev_attr_lpfc_hba_queue_depth,
3822 &dev_attr_lpfc_peer_port_login,
3823 &dev_attr_lpfc_restrict_login,
3824 &dev_attr_lpfc_fcp_class,
3825 &dev_attr_lpfc_use_adisc,
3826 &dev_attr_lpfc_fdmi_on,
3827 &dev_attr_lpfc_max_luns,
3828 &dev_attr_nport_evt_cnt,
3829 &dev_attr_npiv_info,
3830 &dev_attr_lpfc_enable_da_id,
3831 &dev_attr_lpfc_max_scsicmpl_time,
3832 &dev_attr_lpfc_stat_data_ctrl,
3833 &dev_attr_lpfc_static_vport,
3834 &dev_attr_lpfc_fips_level,
3835 &dev_attr_lpfc_fips_rev,
3840 * sysfs_ctlreg_write - Write method for writing to ctlreg
3841 * @filp: open sysfs file
3842 * @kobj: kernel kobject that contains the kernel class device.
3843 * @bin_attr: kernel attributes passed to us.
3844 * @buf: contains the data to be written to the adapter IOREG space.
3845 * @off: offset into buffer to beginning of data.
3846 * @count: bytes to transfer.
3849 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
3850 * Uses the adapter io control registers to send buf contents to the adapter.
3853 * -ERANGE off and count combo out of range
3854 * -EINVAL off, count or buff address invalid
3855 * -EPERM adapter is offline
3856 * value of count, buf contents written
3859 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
3860 struct bin_attribute *bin_attr,
3861 char *buf, loff_t off, size_t count)
3864 struct device *dev = container_of(kobj, struct device, kobj);
3865 struct Scsi_Host *shost = class_to_shost(dev);
3866 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3867 struct lpfc_hba *phba = vport->phba;
3869 if (phba->sli_rev >= LPFC_SLI_REV4)
3872 if ((off + count) > FF_REG_AREA_SIZE)
3875 if (count == 0) return 0;
3877 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3880 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
3884 spin_lock_irq(&phba->hbalock);
3885 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
3886 writel(*((uint32_t *)(buf + buf_off)),
3887 phba->ctrl_regs_memmap_p + off + buf_off);
3889 spin_unlock_irq(&phba->hbalock);
3895 * sysfs_ctlreg_read - Read method for reading from ctlreg
3896 * @filp: open sysfs file
3897 * @kobj: kernel kobject that contains the kernel class device.
3898 * @bin_attr: kernel attributes passed to us.
3899 * @buf: if successful contains the data from the adapter IOREG space.
3900 * @off: offset into buffer to beginning of data.
3901 * @count: bytes to transfer.
3904 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
3905 * Uses the adapter io control registers to read data into buf.
3908 * -ERANGE off and count combo out of range
3909 * -EINVAL off, count or buff address invalid
3910 * value of count, buf contents read
3913 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
3914 struct bin_attribute *bin_attr,
3915 char *buf, loff_t off, size_t count)
3919 struct device *dev = container_of(kobj, struct device, kobj);
3920 struct Scsi_Host *shost = class_to_shost(dev);
3921 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3922 struct lpfc_hba *phba = vport->phba;
3924 if (phba->sli_rev >= LPFC_SLI_REV4)
3927 if (off > FF_REG_AREA_SIZE)
3930 if ((off + count) > FF_REG_AREA_SIZE)
3931 count = FF_REG_AREA_SIZE - off;
3933 if (count == 0) return 0;
3935 if (off % 4 || count % 4 || (unsigned long)buf % 4)
3938 spin_lock_irq(&phba->hbalock);
3940 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
3941 tmp_ptr = (uint32_t *)(buf + buf_off);
3942 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
3945 spin_unlock_irq(&phba->hbalock);
3950 static struct bin_attribute sysfs_ctlreg_attr = {
3953 .mode = S_IRUSR | S_IWUSR,
3956 .read = sysfs_ctlreg_read,
3957 .write = sysfs_ctlreg_write,
3961 * sysfs_mbox_idle - frees the sysfs mailbox
3962 * @phba: lpfc_hba pointer
3965 sysfs_mbox_idle(struct lpfc_hba *phba)
3967 phba->sysfs_mbox.state = SMBOX_IDLE;
3968 phba->sysfs_mbox.offset = 0;
3970 if (phba->sysfs_mbox.mbox) {
3971 mempool_free(phba->sysfs_mbox.mbox,
3972 phba->mbox_mem_pool);
3973 phba->sysfs_mbox.mbox = NULL;
3978 * sysfs_mbox_write - Write method for writing information via mbox
3979 * @filp: open sysfs file
3980 * @kobj: kernel kobject that contains the kernel class device.
3981 * @bin_attr: kernel attributes passed to us.
3982 * @buf: contains the data to be written to sysfs mbox.
3983 * @off: offset into buffer to beginning of data.
3984 * @count: bytes to transfer.
3987 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3988 * Uses the sysfs mbox to send buf contents to the adapter.
3991 * -ERANGE off and count combo out of range
3992 * -EINVAL off, count or buff address invalid
3993 * zero if count is zero
3994 * -EPERM adapter is offline
3995 * -ENOMEM failed to allocate memory for the mail box
3996 * -EAGAIN offset, state or mbox is NULL
3997 * count number of bytes transferred
4000 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
4001 struct bin_attribute *bin_attr,
4002 char *buf, loff_t off, size_t count)
4004 struct device *dev = container_of(kobj, struct device, kobj);
4005 struct Scsi_Host *shost = class_to_shost(dev);
4006 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4007 struct lpfc_hba *phba = vport->phba;
4008 struct lpfcMboxq *mbox = NULL;
4010 if ((count + off) > MAILBOX_CMD_SIZE)
4013 if (off % 4 || count % 4 || (unsigned long)buf % 4)
4020 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4023 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
4026 spin_lock_irq(&phba->hbalock);
4029 if (phba->sysfs_mbox.mbox)
4030 mempool_free(mbox, phba->mbox_mem_pool);
4032 phba->sysfs_mbox.mbox = mbox;
4033 phba->sysfs_mbox.state = SMBOX_WRITING;
4035 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
4036 phba->sysfs_mbox.offset != off ||
4037 phba->sysfs_mbox.mbox == NULL) {
4038 sysfs_mbox_idle(phba);
4039 spin_unlock_irq(&phba->hbalock);
4044 memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off,
4047 phba->sysfs_mbox.offset = off + count;
4049 spin_unlock_irq(&phba->hbalock);
4055 * sysfs_mbox_read - Read method for reading information via mbox
4056 * @filp: open sysfs file
4057 * @kobj: kernel kobject that contains the kernel class device.
4058 * @bin_attr: kernel attributes passed to us.
4059 * @buf: contains the data to be read from sysfs mbox.
4060 * @off: offset into buffer to beginning of data.
4061 * @count: bytes to transfer.
4064 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
4065 * Uses the sysfs mbox to receive data from to the adapter.
4068 * -ERANGE off greater than mailbox command size
4069 * -EINVAL off, count or buff address invalid
4070 * zero if off and count are zero
4071 * -EACCES adapter over temp
4072 * -EPERM garbage can value to catch a multitude of errors
4073 * -EAGAIN management IO not permitted, state or off error
4074 * -ETIME mailbox timeout
4075 * -ENODEV mailbox error
4076 * count number of bytes transferred
4079 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
4080 struct bin_attribute *bin_attr,
4081 char *buf, loff_t off, size_t count)
4083 struct device *dev = container_of(kobj, struct device, kobj);
4084 struct Scsi_Host *shost = class_to_shost(dev);
4085 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4086 struct lpfc_hba *phba = vport->phba;
4090 if (off > MAILBOX_CMD_SIZE)
4093 if ((count + off) > MAILBOX_CMD_SIZE)
4094 count = MAILBOX_CMD_SIZE - off;
4096 if (off % 4 || count % 4 || (unsigned long)buf % 4)
4099 if (off && count == 0)
4102 spin_lock_irq(&phba->hbalock);
4104 if (phba->over_temp_state == HBA_OVER_TEMP) {
4105 sysfs_mbox_idle(phba);
4106 spin_unlock_irq(&phba->hbalock);
4111 phba->sysfs_mbox.state == SMBOX_WRITING &&
4112 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
4113 pmb = &phba->sysfs_mbox.mbox->u.mb;
4114 switch (pmb->mbxCommand) {
4118 case MBX_CONFIG_LINK:
4119 case MBX_CONFIG_RING:
4120 case MBX_RESET_RING:
4121 case MBX_UNREG_LOGIN:
4123 case MBX_DUMP_CONTEXT:
4128 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
4129 printk(KERN_WARNING "mbox_read:Command 0x%x "
4130 "is illegal in on-line state\n",
4132 sysfs_mbox_idle(phba);
4133 spin_unlock_irq(&phba->hbalock);
4137 case MBX_WRITE_VPARMS:
4140 case MBX_READ_CONFIG:
4141 case MBX_READ_RCONFIG:
4142 case MBX_READ_STATUS:
4145 case MBX_READ_LNK_STAT:
4146 case MBX_DUMP_MEMORY:
4148 case MBX_UPDATE_CFG:
4149 case MBX_KILL_BOARD:
4151 case MBX_LOAD_EXP_ROM:
4153 case MBX_DEL_LD_ENTRY:
4154 case MBX_SET_VARIABLE:
4156 case MBX_PORT_CAPABILITIES:
4157 case MBX_PORT_IOV_CONTROL:
4159 case MBX_SECURITY_MGMT:
4161 if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
4162 printk(KERN_WARNING "mbox_read:Command 0x%x "
4163 "is not permitted\n", pmb->mbxCommand);
4164 sysfs_mbox_idle(phba);
4165 spin_unlock_irq(&phba->hbalock);
4169 case MBX_READ_SPARM64:
4170 case MBX_READ_TOPOLOGY:
4172 case MBX_REG_LOGIN64:
4173 case MBX_CONFIG_PORT:
4174 case MBX_RUN_BIU_DIAG:
4175 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
4177 sysfs_mbox_idle(phba);
4178 spin_unlock_irq(&phba->hbalock);
4181 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
4183 sysfs_mbox_idle(phba);
4184 spin_unlock_irq(&phba->hbalock);
4188 /* If HBA encountered an error attention, allow only DUMP
4189 * or RESTART mailbox commands until the HBA is restarted.
4191 if (phba->pport->stopped &&
4192 pmb->mbxCommand != MBX_DUMP_MEMORY &&
4193 pmb->mbxCommand != MBX_RESTART &&
4194 pmb->mbxCommand != MBX_WRITE_VPARMS &&
4195 pmb->mbxCommand != MBX_WRITE_WWN)
4196 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
4197 "1259 mbox: Issued mailbox cmd "
4198 "0x%x while in stopped state.\n",
4201 phba->sysfs_mbox.mbox->vport = vport;
4203 /* Don't allow mailbox commands to be sent when blocked
4204 * or when in the middle of discovery
4206 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
4207 sysfs_mbox_idle(phba);
4208 spin_unlock_irq(&phba->hbalock);
4212 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4213 (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
4215 spin_unlock_irq(&phba->hbalock);
4216 rc = lpfc_sli_issue_mbox (phba,
4217 phba->sysfs_mbox.mbox,
4219 spin_lock_irq(&phba->hbalock);
4222 spin_unlock_irq(&phba->hbalock);
4223 rc = lpfc_sli_issue_mbox_wait (phba,
4224 phba->sysfs_mbox.mbox,
4225 lpfc_mbox_tmo_val(phba, pmb->mbxCommand) * HZ);
4226 spin_lock_irq(&phba->hbalock);
4229 if (rc != MBX_SUCCESS) {
4230 if (rc == MBX_TIMEOUT) {
4231 phba->sysfs_mbox.mbox = NULL;
4233 sysfs_mbox_idle(phba);
4234 spin_unlock_irq(&phba->hbalock);
4235 return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
4237 phba->sysfs_mbox.state = SMBOX_READING;
4239 else if (phba->sysfs_mbox.offset != off ||
4240 phba->sysfs_mbox.state != SMBOX_READING) {
4241 printk(KERN_WARNING "mbox_read: Bad State\n");
4242 sysfs_mbox_idle(phba);
4243 spin_unlock_irq(&phba->hbalock);
4247 memcpy(buf, (uint8_t *) &pmb + off, count);
4249 phba->sysfs_mbox.offset = off + count;
4251 if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
4252 sysfs_mbox_idle(phba);
4254 spin_unlock_irq(&phba->hbalock);
4259 static struct bin_attribute sysfs_mbox_attr = {
4262 .mode = S_IRUSR | S_IWUSR,
4264 .size = MAILBOX_SYSFS_MAX,
4265 .read = sysfs_mbox_read,
4266 .write = sysfs_mbox_write,
4270 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
4271 * @vport: address of lpfc vport structure.
4275 * error return code from sysfs_create_bin_file()
4278 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
4280 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4283 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
4284 &sysfs_drvr_stat_data_attr);
4286 /* Virtual ports do not need ctrl_reg and mbox */
4287 if (error || vport->port_type == LPFC_NPIV_PORT)
4290 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
4291 &sysfs_ctlreg_attr);
4293 goto out_remove_stat_attr;
4295 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
4298 goto out_remove_ctlreg_attr;
4301 out_remove_ctlreg_attr:
4302 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
4303 out_remove_stat_attr:
4304 sysfs_remove_bin_file(&shost->shost_dev.kobj,
4305 &sysfs_drvr_stat_data_attr);
4311 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
4312 * @vport: address of lpfc vport structure.
4315 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
4317 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4318 sysfs_remove_bin_file(&shost->shost_dev.kobj,
4319 &sysfs_drvr_stat_data_attr);
4320 /* Virtual ports do not need ctrl_reg and mbox */
4321 if (vport->port_type == LPFC_NPIV_PORT)
4323 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
4324 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
4329 * Dynamic FC Host Attributes Support
4333 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
4334 * @shost: kernel scsi host pointer.
4337 lpfc_get_host_port_id(struct Scsi_Host *shost)
4339 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4341 /* note: fc_myDID already in cpu endianness */
4342 fc_host_port_id(shost) = vport->fc_myDID;
4346 * lpfc_get_host_port_type - Set the value of the scsi host port type
4347 * @shost: kernel scsi host pointer.
4350 lpfc_get_host_port_type(struct Scsi_Host *shost)
4352 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4353 struct lpfc_hba *phba = vport->phba;
4355 spin_lock_irq(shost->host_lock);
4357 if (vport->port_type == LPFC_NPIV_PORT) {
4358 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
4359 } else if (lpfc_is_link_up(phba)) {
4360 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4361 if (vport->fc_flag & FC_PUBLIC_LOOP)
4362 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
4364 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
4366 if (vport->fc_flag & FC_FABRIC)
4367 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
4369 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
4372 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
4374 spin_unlock_irq(shost->host_lock);
4378 * lpfc_get_host_port_state - Set the value of the scsi host port state
4379 * @shost: kernel scsi host pointer.
4382 lpfc_get_host_port_state(struct Scsi_Host *shost)
4384 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4385 struct lpfc_hba *phba = vport->phba;
4387 spin_lock_irq(shost->host_lock);
4389 if (vport->fc_flag & FC_OFFLINE_MODE)
4390 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
4392 switch (phba->link_state) {
4393 case LPFC_LINK_UNKNOWN:
4394 case LPFC_LINK_DOWN:
4395 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
4399 case LPFC_HBA_READY:
4400 /* Links up, beyond this port_type reports state */
4401 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
4403 case LPFC_HBA_ERROR:
4404 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
4407 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
4412 spin_unlock_irq(shost->host_lock);
4416 * lpfc_get_host_speed - Set the value of the scsi host speed
4417 * @shost: kernel scsi host pointer.
4420 lpfc_get_host_speed(struct Scsi_Host *shost)
4422 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4423 struct lpfc_hba *phba = vport->phba;
4425 spin_lock_irq(shost->host_lock);
4427 if (lpfc_is_link_up(phba)) {
4428 switch(phba->fc_linkspeed) {
4429 case LPFC_LINK_SPEED_1GHZ:
4430 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
4432 case LPFC_LINK_SPEED_2GHZ:
4433 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
4435 case LPFC_LINK_SPEED_4GHZ:
4436 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
4438 case LPFC_LINK_SPEED_8GHZ:
4439 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
4441 case LPFC_LINK_SPEED_10GHZ:
4442 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
4444 case LPFC_LINK_SPEED_16GHZ:
4445 fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
4448 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
4452 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
4454 spin_unlock_irq(shost->host_lock);
4458 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
4459 * @shost: kernel scsi host pointer.
4462 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
4464 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4465 struct lpfc_hba *phba = vport->phba;
4468 spin_lock_irq(shost->host_lock);
4470 if ((vport->fc_flag & FC_FABRIC) ||
4471 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
4472 (vport->fc_flag & FC_PUBLIC_LOOP)))
4473 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
4475 /* fabric is local port if there is no F/FL_Port */
4478 spin_unlock_irq(shost->host_lock);
4480 fc_host_fabric_name(shost) = node_name;
4484 * lpfc_get_stats - Return statistical information about the adapter
4485 * @shost: kernel scsi host pointer.
4488 * NULL on error for link down, no mbox pool, sli2 active,
4489 * management not allowed, memory allocation error, or mbox error.
4493 * address of the adapter host statistics
4495 static struct fc_host_statistics *
4496 lpfc_get_stats(struct Scsi_Host *shost)
4498 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4499 struct lpfc_hba *phba = vport->phba;
4500 struct lpfc_sli *psli = &phba->sli;
4501 struct fc_host_statistics *hs = &phba->link_stats;
4502 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
4503 LPFC_MBOXQ_t *pmboxq;
4505 unsigned long seconds;
4509 * prevent udev from issuing mailbox commands until the port is
4512 if (phba->link_state < LPFC_LINK_DOWN ||
4513 !phba->mbox_mem_pool ||
4514 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
4517 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4520 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4523 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
4525 pmb = &pmboxq->u.mb;
4526 pmb->mbxCommand = MBX_READ_STATUS;
4527 pmb->mbxOwner = OWN_HOST;
4528 pmboxq->context1 = NULL;
4529 pmboxq->vport = vport;
4531 if (vport->fc_flag & FC_OFFLINE_MODE)
4532 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4534 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4536 if (rc != MBX_SUCCESS) {
4537 if (rc != MBX_TIMEOUT)
4538 mempool_free(pmboxq, phba->mbox_mem_pool);
4542 memset(hs, 0, sizeof (struct fc_host_statistics));
4544 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
4545 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
4546 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
4547 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
4549 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
4550 pmb->mbxCommand = MBX_READ_LNK_STAT;
4551 pmb->mbxOwner = OWN_HOST;
4552 pmboxq->context1 = NULL;
4553 pmboxq->vport = vport;
4555 if (vport->fc_flag & FC_OFFLINE_MODE)
4556 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4558 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4560 if (rc != MBX_SUCCESS) {
4561 if (rc != MBX_TIMEOUT)
4562 mempool_free(pmboxq, phba->mbox_mem_pool);
4566 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
4567 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
4568 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
4569 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
4570 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
4571 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
4572 hs->error_frames = pmb->un.varRdLnk.crcCnt;
4574 hs->link_failure_count -= lso->link_failure_count;
4575 hs->loss_of_sync_count -= lso->loss_of_sync_count;
4576 hs->loss_of_signal_count -= lso->loss_of_signal_count;
4577 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
4578 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
4579 hs->invalid_crc_count -= lso->invalid_crc_count;
4580 hs->error_frames -= lso->error_frames;
4582 if (phba->hba_flag & HBA_FCOE_MODE) {
4584 hs->nos_count = (phba->link_events >> 1);
4585 hs->nos_count -= lso->link_events;
4586 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4587 hs->lip_count = (phba->fc_eventTag >> 1);
4588 hs->lip_count -= lso->link_events;
4592 hs->nos_count = (phba->fc_eventTag >> 1);
4593 hs->nos_count -= lso->link_events;
4596 hs->dumped_frames = -1;
4598 seconds = get_seconds();
4599 if (seconds < psli->stats_start)
4600 hs->seconds_since_last_reset = seconds +
4601 ((unsigned long)-1 - psli->stats_start);
4603 hs->seconds_since_last_reset = seconds - psli->stats_start;
4605 mempool_free(pmboxq, phba->mbox_mem_pool);
4611 * lpfc_reset_stats - Copy the adapter link stats information
4612 * @shost: kernel scsi host pointer.
4615 lpfc_reset_stats(struct Scsi_Host *shost)
4617 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4618 struct lpfc_hba *phba = vport->phba;
4619 struct lpfc_sli *psli = &phba->sli;
4620 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
4621 LPFC_MBOXQ_t *pmboxq;
4625 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
4628 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4631 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4633 pmb = &pmboxq->u.mb;
4634 pmb->mbxCommand = MBX_READ_STATUS;
4635 pmb->mbxOwner = OWN_HOST;
4636 pmb->un.varWords[0] = 0x1; /* reset request */
4637 pmboxq->context1 = NULL;
4638 pmboxq->vport = vport;
4640 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4641 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4642 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4644 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4646 if (rc != MBX_SUCCESS) {
4647 if (rc != MBX_TIMEOUT)
4648 mempool_free(pmboxq, phba->mbox_mem_pool);
4652 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
4653 pmb->mbxCommand = MBX_READ_LNK_STAT;
4654 pmb->mbxOwner = OWN_HOST;
4655 pmboxq->context1 = NULL;
4656 pmboxq->vport = vport;
4658 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
4659 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
4660 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
4662 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
4664 if (rc != MBX_SUCCESS) {
4665 if (rc != MBX_TIMEOUT)
4666 mempool_free( pmboxq, phba->mbox_mem_pool);
4670 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
4671 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
4672 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
4673 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
4674 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
4675 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
4676 lso->error_frames = pmb->un.varRdLnk.crcCnt;
4677 if (phba->hba_flag & HBA_FCOE_MODE)
4678 lso->link_events = (phba->link_events >> 1);
4680 lso->link_events = (phba->fc_eventTag >> 1);
4682 psli->stats_start = get_seconds();
4684 mempool_free(pmboxq, phba->mbox_mem_pool);
4690 * The LPFC driver treats linkdown handling as target loss events so there
4691 * are no sysfs handlers for link_down_tmo.
4695 * lpfc_get_node_by_target - Return the nodelist for a target
4696 * @starget: kernel scsi target pointer.
4699 * address of the node list if found
4700 * NULL target not found
4702 static struct lpfc_nodelist *
4703 lpfc_get_node_by_target(struct scsi_target *starget)
4705 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
4706 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4707 struct lpfc_nodelist *ndlp;
4709 spin_lock_irq(shost->host_lock);
4710 /* Search for this, mapped, target ID */
4711 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4712 if (NLP_CHK_NODE_ACT(ndlp) &&
4713 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
4714 starget->id == ndlp->nlp_sid) {
4715 spin_unlock_irq(shost->host_lock);
4719 spin_unlock_irq(shost->host_lock);
4724 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
4725 * @starget: kernel scsi target pointer.
4728 lpfc_get_starget_port_id(struct scsi_target *starget)
4730 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4732 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
4736 * lpfc_get_starget_node_name - Set the target node name
4737 * @starget: kernel scsi target pointer.
4739 * Description: Set the target node name to the ndlp node name wwn or zero.
4742 lpfc_get_starget_node_name(struct scsi_target *starget)
4744 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4746 fc_starget_node_name(starget) =
4747 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
4751 * lpfc_get_starget_port_name - Set the target port name
4752 * @starget: kernel scsi target pointer.
4754 * Description: set the target port name to the ndlp port name wwn or zero.
4757 lpfc_get_starget_port_name(struct scsi_target *starget)
4759 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
4761 fc_starget_port_name(starget) =
4762 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
4766 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
4767 * @rport: fc rport address.
4768 * @timeout: new value for dev loss tmo.
4771 * If timeout is non zero set the dev_loss_tmo to timeout, else set
4772 * dev_loss_tmo to one.
4775 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
4778 rport->dev_loss_tmo = timeout;
4780 rport->dev_loss_tmo = 1;
4784 * lpfc_rport_show_function - Return rport target information
4787 * Macro that uses field to generate a function with the name lpfc_show_rport_
4789 * lpfc_show_rport_##field: returns the bytes formatted in buf
4790 * @cdev: class converted to an fc_rport.
4791 * @buf: on return contains the target_field or zero.
4793 * Returns: size of formatted string.
4795 #define lpfc_rport_show_function(field, format_string, sz, cast) \
4797 lpfc_show_rport_##field (struct device *dev, \
4798 struct device_attribute *attr, \
4801 struct fc_rport *rport = transport_class_to_rport(dev); \
4802 struct lpfc_rport_data *rdata = rport->hostdata; \
4803 return snprintf(buf, sz, format_string, \
4804 (rdata->target) ? cast rdata->target->field : 0); \
4807 #define lpfc_rport_rd_attr(field, format_string, sz) \
4808 lpfc_rport_show_function(field, format_string, sz, ) \
4809 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
4812 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
4813 * @fc_vport: The fc_vport who's symbolic name has been changed.
4816 * This function is called by the transport after the @fc_vport's symbolic name
4817 * has been changed. This function re-registers the symbolic name with the
4818 * switch to propagate the change into the fabric if the vport is active.
4821 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
4823 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
4825 if (vport->port_state == LPFC_VPORT_READY)
4826 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
4830 * lpfc_hba_log_verbose_init - Set hba's log verbose level
4831 * @phba: Pointer to lpfc_hba struct.
4833 * This function is called by the lpfc_get_cfgparam() routine to set the
4834 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
4835 * log message according to the module's lpfc_log_verbose parameter setting
4836 * before hba port or vport created.
4839 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
4841 phba->cfg_log_verbose = verbose;
4844 struct fc_function_template lpfc_transport_functions = {
4845 /* fixed attributes the driver supports */
4846 .show_host_node_name = 1,
4847 .show_host_port_name = 1,
4848 .show_host_supported_classes = 1,
4849 .show_host_supported_fc4s = 1,
4850 .show_host_supported_speeds = 1,
4851 .show_host_maxframe_size = 1,
4852 .show_host_symbolic_name = 1,
4854 /* dynamic attributes the driver supports */
4855 .get_host_port_id = lpfc_get_host_port_id,
4856 .show_host_port_id = 1,
4858 .get_host_port_type = lpfc_get_host_port_type,
4859 .show_host_port_type = 1,
4861 .get_host_port_state = lpfc_get_host_port_state,
4862 .show_host_port_state = 1,
4864 /* active_fc4s is shown but doesn't change (thus no get function) */
4865 .show_host_active_fc4s = 1,
4867 .get_host_speed = lpfc_get_host_speed,
4868 .show_host_speed = 1,
4870 .get_host_fabric_name = lpfc_get_host_fabric_name,
4871 .show_host_fabric_name = 1,
4874 * The LPFC driver treats linkdown handling as target loss events
4875 * so there are no sysfs handlers for link_down_tmo.
4878 .get_fc_host_stats = lpfc_get_stats,
4879 .reset_fc_host_stats = lpfc_reset_stats,
4881 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
4882 .show_rport_maxframe_size = 1,
4883 .show_rport_supported_classes = 1,
4885 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
4886 .show_rport_dev_loss_tmo = 1,
4888 .get_starget_port_id = lpfc_get_starget_port_id,
4889 .show_starget_port_id = 1,
4891 .get_starget_node_name = lpfc_get_starget_node_name,
4892 .show_starget_node_name = 1,
4894 .get_starget_port_name = lpfc_get_starget_port_name,
4895 .show_starget_port_name = 1,
4897 .issue_fc_host_lip = lpfc_issue_lip,
4898 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
4899 .terminate_rport_io = lpfc_terminate_rport_io,
4901 .dd_fcvport_size = sizeof(struct lpfc_vport *),
4903 .vport_disable = lpfc_vport_disable,
4905 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4907 .bsg_request = lpfc_bsg_request,
4908 .bsg_timeout = lpfc_bsg_timeout,
4911 struct fc_function_template lpfc_vport_transport_functions = {
4912 /* fixed attributes the driver supports */
4913 .show_host_node_name = 1,
4914 .show_host_port_name = 1,
4915 .show_host_supported_classes = 1,
4916 .show_host_supported_fc4s = 1,
4917 .show_host_supported_speeds = 1,
4918 .show_host_maxframe_size = 1,
4919 .show_host_symbolic_name = 1,
4921 /* dynamic attributes the driver supports */
4922 .get_host_port_id = lpfc_get_host_port_id,
4923 .show_host_port_id = 1,
4925 .get_host_port_type = lpfc_get_host_port_type,
4926 .show_host_port_type = 1,
4928 .get_host_port_state = lpfc_get_host_port_state,
4929 .show_host_port_state = 1,
4931 /* active_fc4s is shown but doesn't change (thus no get function) */
4932 .show_host_active_fc4s = 1,
4934 .get_host_speed = lpfc_get_host_speed,
4935 .show_host_speed = 1,
4937 .get_host_fabric_name = lpfc_get_host_fabric_name,
4938 .show_host_fabric_name = 1,
4941 * The LPFC driver treats linkdown handling as target loss events
4942 * so there are no sysfs handlers for link_down_tmo.
4945 .get_fc_host_stats = lpfc_get_stats,
4946 .reset_fc_host_stats = lpfc_reset_stats,
4948 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
4949 .show_rport_maxframe_size = 1,
4950 .show_rport_supported_classes = 1,
4952 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
4953 .show_rport_dev_loss_tmo = 1,
4955 .get_starget_port_id = lpfc_get_starget_port_id,
4956 .show_starget_port_id = 1,
4958 .get_starget_node_name = lpfc_get_starget_node_name,
4959 .show_starget_node_name = 1,
4961 .get_starget_port_name = lpfc_get_starget_port_name,
4962 .show_starget_port_name = 1,
4964 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
4965 .terminate_rport_io = lpfc_terminate_rport_io,
4967 .vport_disable = lpfc_vport_disable,
4969 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
4973 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
4974 * @phba: lpfc_hba pointer.
4977 lpfc_get_cfgparam(struct lpfc_hba *phba)
4979 lpfc_cr_delay_init(phba, lpfc_cr_delay);
4980 lpfc_cr_count_init(phba, lpfc_cr_count);
4981 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
4982 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
4983 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
4984 lpfc_ack0_init(phba, lpfc_ack0);
4985 lpfc_topology_init(phba, lpfc_topology);
4986 lpfc_link_speed_init(phba, lpfc_link_speed);
4987 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
4988 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
4989 lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
4990 lpfc_use_msi_init(phba, lpfc_use_msi);
4991 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
4992 lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count);
4993 lpfc_fcp_eq_count_init(phba, lpfc_fcp_eq_count);
4994 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
4995 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
4996 lpfc_enable_bg_init(phba, lpfc_enable_bg);
4997 if (phba->sli_rev == LPFC_SLI_REV4)
5000 phba->cfg_poll = lpfc_poll;
5001 phba->cfg_soft_wwnn = 0L;
5002 phba->cfg_soft_wwpn = 0L;
5003 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
5004 lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
5005 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
5006 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
5007 lpfc_aer_support_init(phba, lpfc_aer_support);
5008 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
5009 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
5010 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
5011 phba->cfg_enable_dss = 1;
5016 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
5017 * @vport: lpfc_vport pointer.
5020 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
5022 lpfc_log_verbose_init(vport, lpfc_log_verbose);
5023 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
5024 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
5025 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
5026 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
5027 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
5028 lpfc_restrict_login_init(vport, lpfc_restrict_login);
5029 lpfc_fcp_class_init(vport, lpfc_fcp_class);
5030 lpfc_use_adisc_init(vport, lpfc_use_adisc);
5031 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
5032 lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
5033 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
5034 lpfc_max_luns_init(vport, lpfc_max_luns);
5035 lpfc_scan_down_init(vport, lpfc_scan_down);
5036 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);