1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
24 #include <linux/ctype.h>
25 #include <linux/delay.h>
26 #include <linux/pci.h>
27 #include <linux/interrupt.h>
28 #include <linux/module.h>
29 #include <linux/aer.h>
30 #include <linux/gfp.h>
31 #include <linux/kernel.h>
33 #include <scsi/scsi.h>
34 #include <scsi/scsi_device.h>
35 #include <scsi/scsi_host.h>
36 #include <scsi/scsi_tcq.h>
37 #include <scsi/scsi_transport_fc.h>
38 #include <scsi/fc/fc_fs.h>
40 #include <linux/nvme-fc-driver.h>
45 #include "lpfc_sli4.h"
47 #include "lpfc_disc.h"
49 #include "lpfc_scsi.h"
50 #include "lpfc_nvme.h"
51 #include "lpfc_nvmet.h"
52 #include "lpfc_logmsg.h"
53 #include "lpfc_version.h"
54 #include "lpfc_compat.h"
55 #include "lpfc_crtn.h"
56 #include "lpfc_vport.h"
57 #include "lpfc_attr.h"
59 #define LPFC_DEF_DEVLOSS_TMO 30
60 #define LPFC_MIN_DEVLOSS_TMO 1
61 #define LPFC_MAX_DEVLOSS_TMO 255
63 #define LPFC_DEF_MRQ_POST 512
64 #define LPFC_MIN_MRQ_POST 512
65 #define LPFC_MAX_MRQ_POST 2048
68 * Write key size should be multiple of 4. If write key is changed
69 * make sure that library write key is also changed.
71 #define LPFC_REG_WRITE_KEY_SIZE 4
72 #define LPFC_REG_WRITE_KEY "EMLX"
74 const char *const trunk_errmsg[] = { /* map errcode */
75 "", /* There is no such error code at index 0*/
76 "link negotiated speed does not match existing"
77 " trunk - link was \"low\" speed",
78 "link negotiated speed does not match"
79 " existing trunk - link was \"middle\" speed",
80 "link negotiated speed does not match existing"
81 " trunk - link was \"high\" speed",
82 "Attached to non-trunking port - F_Port",
83 "Attached to non-trunking port - N_Port",
84 "FLOGI response timeout",
85 "non-FLOGI frame received",
86 "Invalid FLOGI response",
87 "Trunking initialization protocol",
88 "Trunk peer device mismatch",
92 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
93 * @incr: integer to convert.
94 * @hdw: ascii string holding converted integer plus a string terminator.
97 * JEDEC Joint Electron Device Engineering Council.
98 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
99 * character string. The string is then terminated with a NULL in byte 9.
100 * Hex 0-9 becomes ascii '0' to '9'.
101 * Hex a-f becomes ascii '=' to 'B' capital B.
104 * Coded for 32 bit integers only.
107 lpfc_jedec_to_ascii(int incr, char hdw[])
110 for (i = 0; i < 8; i++) {
113 hdw[7 - i] = 0x30 + j;
115 hdw[7 - i] = 0x61 + j - 10;
123 * lpfc_drvr_version_show - Return the Emulex driver string with version number
124 * @dev: class unused variable.
125 * @attr: device attribute, not used.
126 * @buf: on return contains the module description text.
128 * Returns: size of formatted string.
131 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
134 return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
138 * lpfc_enable_fip_show - Return the fip mode of the HBA
139 * @dev: class unused variable.
140 * @attr: device attribute, not used.
141 * @buf: on return contains the module description text.
143 * Returns: size of formatted string.
146 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
149 struct Scsi_Host *shost = class_to_shost(dev);
150 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
151 struct lpfc_hba *phba = vport->phba;
153 if (phba->hba_flag & HBA_FIP_SUPPORT)
154 return scnprintf(buf, PAGE_SIZE, "1\n");
156 return scnprintf(buf, PAGE_SIZE, "0\n");
160 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
163 struct Scsi_Host *shost = class_to_shost(dev);
164 struct lpfc_vport *vport = shost_priv(shost);
165 struct lpfc_hba *phba = vport->phba;
166 struct lpfc_nvmet_tgtport *tgtp;
167 struct nvme_fc_local_port *localport;
168 struct lpfc_nvme_lport *lport;
169 struct lpfc_nvme_rport *rport;
170 struct lpfc_nodelist *ndlp;
171 struct nvme_fc_remote_port *nrport;
172 struct lpfc_fc4_ctrl_stat *cstat;
173 uint64_t data1, data2, data3;
174 uint64_t totin, totout, tot;
178 char tmp[LPFC_MAX_NVME_INFO_TMP_LEN] = {0};
179 unsigned long iflags = 0;
181 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
182 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n");
185 if (phba->nvmet_support) {
186 if (!phba->targetport) {
187 len = scnprintf(buf, PAGE_SIZE,
188 "NVME Target: x%llx is not allocated\n",
189 wwn_to_u64(vport->fc_portname.u.wwn));
192 /* Port state is only one of two values for now. */
193 if (phba->targetport->port_id)
194 statep = "REGISTERED";
197 scnprintf(tmp, sizeof(tmp),
198 "NVME Target Enabled State %s\n",
200 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
203 scnprintf(tmp, sizeof(tmp),
204 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n",
207 wwn_to_u64(vport->fc_portname.u.wwn),
208 wwn_to_u64(vport->fc_nodename.u.wwn),
209 phba->targetport->port_id);
210 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
213 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE)
217 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
218 scnprintf(tmp, sizeof(tmp),
219 "LS: Rcv %08x Drop %08x Abort %08x\n",
220 atomic_read(&tgtp->rcv_ls_req_in),
221 atomic_read(&tgtp->rcv_ls_req_drop),
222 atomic_read(&tgtp->xmt_ls_abort));
223 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
226 if (atomic_read(&tgtp->rcv_ls_req_in) !=
227 atomic_read(&tgtp->rcv_ls_req_out)) {
228 scnprintf(tmp, sizeof(tmp),
229 "Rcv LS: in %08x != out %08x\n",
230 atomic_read(&tgtp->rcv_ls_req_in),
231 atomic_read(&tgtp->rcv_ls_req_out));
232 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
236 scnprintf(tmp, sizeof(tmp),
237 "LS: Xmt %08x Drop %08x Cmpl %08x\n",
238 atomic_read(&tgtp->xmt_ls_rsp),
239 atomic_read(&tgtp->xmt_ls_drop),
240 atomic_read(&tgtp->xmt_ls_rsp_cmpl));
241 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
244 scnprintf(tmp, sizeof(tmp),
245 "LS: RSP Abort %08x xb %08x Err %08x\n",
246 atomic_read(&tgtp->xmt_ls_rsp_aborted),
247 atomic_read(&tgtp->xmt_ls_rsp_xb_set),
248 atomic_read(&tgtp->xmt_ls_rsp_error));
249 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
252 scnprintf(tmp, sizeof(tmp),
253 "FCP: Rcv %08x Defer %08x Release %08x "
255 atomic_read(&tgtp->rcv_fcp_cmd_in),
256 atomic_read(&tgtp->rcv_fcp_cmd_defer),
257 atomic_read(&tgtp->xmt_fcp_release),
258 atomic_read(&tgtp->rcv_fcp_cmd_drop));
259 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
262 if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
263 atomic_read(&tgtp->rcv_fcp_cmd_out)) {
264 scnprintf(tmp, sizeof(tmp),
265 "Rcv FCP: in %08x != out %08x\n",
266 atomic_read(&tgtp->rcv_fcp_cmd_in),
267 atomic_read(&tgtp->rcv_fcp_cmd_out));
268 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
272 scnprintf(tmp, sizeof(tmp),
273 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x "
275 atomic_read(&tgtp->xmt_fcp_read),
276 atomic_read(&tgtp->xmt_fcp_read_rsp),
277 atomic_read(&tgtp->xmt_fcp_write),
278 atomic_read(&tgtp->xmt_fcp_rsp),
279 atomic_read(&tgtp->xmt_fcp_drop));
280 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
283 scnprintf(tmp, sizeof(tmp),
284 "FCP Rsp Cmpl: %08x err %08x drop %08x\n",
285 atomic_read(&tgtp->xmt_fcp_rsp_cmpl),
286 atomic_read(&tgtp->xmt_fcp_rsp_error),
287 atomic_read(&tgtp->xmt_fcp_rsp_drop));
288 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
291 scnprintf(tmp, sizeof(tmp),
292 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n",
293 atomic_read(&tgtp->xmt_fcp_rsp_aborted),
294 atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
295 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
296 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
299 scnprintf(tmp, sizeof(tmp),
300 "ABORT: Xmt %08x Cmpl %08x\n",
301 atomic_read(&tgtp->xmt_fcp_abort),
302 atomic_read(&tgtp->xmt_fcp_abort_cmpl));
303 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
306 scnprintf(tmp, sizeof(tmp),
307 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n",
308 atomic_read(&tgtp->xmt_abort_sol),
309 atomic_read(&tgtp->xmt_abort_unsol),
310 atomic_read(&tgtp->xmt_abort_rsp),
311 atomic_read(&tgtp->xmt_abort_rsp_error));
312 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
315 scnprintf(tmp, sizeof(tmp),
316 "DELAY: ctx %08x fod %08x wqfull %08x\n",
317 atomic_read(&tgtp->defer_ctx),
318 atomic_read(&tgtp->defer_fod),
319 atomic_read(&tgtp->defer_wqfull));
320 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
323 /* Calculate outstanding IOs */
324 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
325 tot += atomic_read(&tgtp->xmt_fcp_release);
326 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
328 scnprintf(tmp, sizeof(tmp),
329 "IO_CTX: %08x WAIT: cur %08x tot %08x\n"
330 "CTX Outstanding %08llx\n\n",
331 phba->sli4_hba.nvmet_xri_cnt,
332 phba->sli4_hba.nvmet_io_wait_cnt,
333 phba->sli4_hba.nvmet_io_wait_total,
335 strlcat(buf, tmp, PAGE_SIZE);
339 localport = vport->localport;
341 len = scnprintf(buf, PAGE_SIZE,
342 "NVME Initiator x%llx is not allocated\n",
343 wwn_to_u64(vport->fc_portname.u.wwn));
346 lport = (struct lpfc_nvme_lport *)localport->private;
347 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE)
351 scnprintf(tmp, sizeof(tmp),
352 "XRI Dist lpfc%d Total %d IO %d ELS %d\n",
354 phba->sli4_hba.max_cfg_param.max_xri,
355 phba->sli4_hba.io_xri_max,
356 lpfc_sli4_get_els_iocb_cnt(phba));
357 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
358 goto rcu_unlock_buf_done;
360 /* Port state is only one of two values for now. */
361 if (localport->port_id)
366 scnprintf(tmp, sizeof(tmp),
367 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n",
370 wwn_to_u64(vport->fc_portname.u.wwn),
371 wwn_to_u64(vport->fc_nodename.u.wwn),
372 localport->port_id, statep);
373 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
374 goto rcu_unlock_buf_done;
376 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
378 spin_lock_irqsave(&vport->phba->hbalock, iflags);
379 rport = lpfc_ndlp_get_nrport(ndlp);
381 nrport = rport->remoteport;
382 spin_unlock_irqrestore(&vport->phba->hbalock, iflags);
386 /* Port state is only one of two values for now. */
387 switch (nrport->port_state) {
388 case FC_OBJSTATE_ONLINE:
391 case FC_OBJSTATE_UNKNOWN:
395 statep = "UNSUPPORTED";
399 /* Tab in to show lport ownership. */
400 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE)
401 goto rcu_unlock_buf_done;
402 if (phba->brd_no >= 10) {
403 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE)
404 goto rcu_unlock_buf_done;
407 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ",
409 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
410 goto rcu_unlock_buf_done;
412 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ",
414 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
415 goto rcu_unlock_buf_done;
417 scnprintf(tmp, sizeof(tmp), "DID x%06x ",
419 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
420 goto rcu_unlock_buf_done;
422 /* An NVME rport can have multiple roles. */
423 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) {
424 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE)
425 goto rcu_unlock_buf_done;
427 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) {
428 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE)
429 goto rcu_unlock_buf_done;
431 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) {
432 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE)
433 goto rcu_unlock_buf_done;
435 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
436 FC_PORT_ROLE_NVME_TARGET |
437 FC_PORT_ROLE_NVME_DISCOVERY)) {
438 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x",
440 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
441 goto rcu_unlock_buf_done;
444 scnprintf(tmp, sizeof(tmp), "%s\n", statep);
445 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
446 goto rcu_unlock_buf_done;
453 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE)
456 scnprintf(tmp, sizeof(tmp),
457 "LS: Xmt %010x Cmpl %010x Abort %08x\n",
458 atomic_read(&lport->fc4NvmeLsRequests),
459 atomic_read(&lport->fc4NvmeLsCmpls),
460 atomic_read(&lport->xmt_ls_abort));
461 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
464 scnprintf(tmp, sizeof(tmp),
465 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n",
466 atomic_read(&lport->xmt_ls_err),
467 atomic_read(&lport->cmpl_ls_xb),
468 atomic_read(&lport->cmpl_ls_err));
469 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
474 for (i = 0; i < phba->cfg_hdw_queue; i++) {
475 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat;
476 tot = cstat->io_cmpls;
478 data1 = cstat->input_requests;
479 data2 = cstat->output_requests;
480 data3 = cstat->control_requests;
481 totout += (data1 + data2 + data3);
483 scnprintf(tmp, sizeof(tmp),
484 "Total FCP Cmpl %016llx Issue %016llx "
486 totin, totout, totout - totin);
487 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
490 scnprintf(tmp, sizeof(tmp),
491 "\tabort %08x noxri %08x nondlp %08x qdepth %08x "
492 "wqerr %08x err %08x\n",
493 atomic_read(&lport->xmt_fcp_abort),
494 atomic_read(&lport->xmt_fcp_noxri),
495 atomic_read(&lport->xmt_fcp_bad_ndlp),
496 atomic_read(&lport->xmt_fcp_qdepth),
497 atomic_read(&lport->xmt_fcp_err),
498 atomic_read(&lport->xmt_fcp_wqerr));
499 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
502 scnprintf(tmp, sizeof(tmp),
503 "FCP CMPL: xb %08x Err %08x\n",
504 atomic_read(&lport->cmpl_fcp_xb),
505 atomic_read(&lport->cmpl_fcp_err));
506 strlcat(buf, tmp, PAGE_SIZE);
508 /* RCU is already unlocked. */
515 len = strnlen(buf, PAGE_SIZE);
517 if (unlikely(len >= (PAGE_SIZE - 1))) {
518 lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
519 "6314 Catching potential buffer "
520 "overflow > PAGE_SIZE = %lu bytes\n",
522 strlcpy(buf + PAGE_SIZE - 1 -
523 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1),
524 LPFC_NVME_INFO_MORE_STR,
525 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1)
533 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr,
536 struct Scsi_Host *shost = class_to_shost(dev);
537 struct lpfc_vport *vport = shost_priv(shost);
538 struct lpfc_hba *phba = vport->phba;
540 struct lpfc_fc4_ctrl_stat *cstat;
541 u64 data1, data2, data3;
542 u64 tot, totin, totout;
544 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0};
546 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ||
547 (phba->sli_rev != LPFC_SLI_REV4))
550 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n");
554 for (i = 0; i < phba->cfg_hdw_queue; i++) {
555 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat;
556 tot = cstat->io_cmpls;
558 data1 = cstat->input_requests;
559 data2 = cstat->output_requests;
560 data3 = cstat->control_requests;
561 totout += (data1 + data2 + data3);
563 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx "
564 "IO %016llx ", i, data1, data2, data3);
565 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
568 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n",
569 tot, ((data1 + data2 + data3) - tot));
570 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
573 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx "
574 "OutIO %016llx\n", totin, totout, totout - totin);
575 strlcat(buf, tmp, PAGE_SIZE);
578 len = strnlen(buf, PAGE_SIZE);
584 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
587 struct Scsi_Host *shost = class_to_shost(dev);
588 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
589 struct lpfc_hba *phba = vport->phba;
591 if (phba->cfg_enable_bg) {
592 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
593 return scnprintf(buf, PAGE_SIZE,
594 "BlockGuard Enabled\n");
596 return scnprintf(buf, PAGE_SIZE,
597 "BlockGuard Not Supported\n");
599 return scnprintf(buf, PAGE_SIZE,
600 "BlockGuard Disabled\n");
604 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
607 struct Scsi_Host *shost = class_to_shost(dev);
608 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
609 struct lpfc_hba *phba = vport->phba;
611 return scnprintf(buf, PAGE_SIZE, "%llu\n",
612 (unsigned long long)phba->bg_guard_err_cnt);
616 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
619 struct Scsi_Host *shost = class_to_shost(dev);
620 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
621 struct lpfc_hba *phba = vport->phba;
623 return scnprintf(buf, PAGE_SIZE, "%llu\n",
624 (unsigned long long)phba->bg_apptag_err_cnt);
628 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
631 struct Scsi_Host *shost = class_to_shost(dev);
632 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
633 struct lpfc_hba *phba = vport->phba;
635 return scnprintf(buf, PAGE_SIZE, "%llu\n",
636 (unsigned long long)phba->bg_reftag_err_cnt);
640 * lpfc_info_show - Return some pci info about the host in ascii
641 * @dev: class converted to a Scsi_host structure.
642 * @attr: device attribute, not used.
643 * @buf: on return contains the formatted text from lpfc_info().
645 * Returns: size of formatted string.
648 lpfc_info_show(struct device *dev, struct device_attribute *attr,
651 struct Scsi_Host *host = class_to_shost(dev);
653 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host));
657 * lpfc_serialnum_show - Return the hba serial number in ascii
658 * @dev: class converted to a Scsi_host structure.
659 * @attr: device attribute, not used.
660 * @buf: on return contains the formatted text serial number.
662 * Returns: size of formatted string.
665 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
668 struct Scsi_Host *shost = class_to_shost(dev);
669 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
670 struct lpfc_hba *phba = vport->phba;
672 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber);
676 * lpfc_temp_sensor_show - Return the temperature sensor level
677 * @dev: class converted to a Scsi_host structure.
678 * @attr: device attribute, not used.
679 * @buf: on return contains the formatted support level.
682 * Returns a number indicating the temperature sensor level currently
683 * supported, zero or one in ascii.
685 * Returns: size of formatted string.
688 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
691 struct Scsi_Host *shost = class_to_shost(dev);
692 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
693 struct lpfc_hba *phba = vport->phba;
694 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support);
698 * lpfc_modeldesc_show - Return the model description of the hba
699 * @dev: class converted to a Scsi_host structure.
700 * @attr: device attribute, not used.
701 * @buf: on return contains the scsi vpd model description.
703 * Returns: size of formatted string.
706 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
709 struct Scsi_Host *shost = class_to_shost(dev);
710 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
711 struct lpfc_hba *phba = vport->phba;
713 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc);
717 * lpfc_modelname_show - Return the model name of the hba
718 * @dev: class converted to a Scsi_host structure.
719 * @attr: device attribute, not used.
720 * @buf: on return contains the scsi vpd model name.
722 * Returns: size of formatted string.
725 lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
728 struct Scsi_Host *shost = class_to_shost(dev);
729 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
730 struct lpfc_hba *phba = vport->phba;
732 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName);
736 * lpfc_programtype_show - Return the program type of the hba
737 * @dev: class converted to a Scsi_host structure.
738 * @attr: device attribute, not used.
739 * @buf: on return contains the scsi vpd program type.
741 * Returns: size of formatted string.
744 lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
747 struct Scsi_Host *shost = class_to_shost(dev);
748 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
749 struct lpfc_hba *phba = vport->phba;
751 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType);
755 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
756 * @dev: class converted to a Scsi_host structure.
757 * @attr: device attribute, not used.
758 * @buf: on return contains the Menlo Maintenance sli flag.
760 * Returns: size of formatted string.
763 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
765 struct Scsi_Host *shost = class_to_shost(dev);
766 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
767 struct lpfc_hba *phba = vport->phba;
769 return scnprintf(buf, PAGE_SIZE, "%d\n",
770 (phba->sli.sli_flag & LPFC_MENLO_MAINT));
774 * lpfc_vportnum_show - Return the port number in ascii of the hba
775 * @dev: class converted to a Scsi_host structure.
776 * @attr: device attribute, not used.
777 * @buf: on return contains scsi vpd program type.
779 * Returns: size of formatted string.
782 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
785 struct Scsi_Host *shost = class_to_shost(dev);
786 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
787 struct lpfc_hba *phba = vport->phba;
789 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port);
793 * lpfc_fwrev_show - Return the firmware rev running in the hba
794 * @dev: class converted to a Scsi_host structure.
795 * @attr: device attribute, not used.
796 * @buf: on return contains the scsi vpd program type.
798 * Returns: size of formatted string.
801 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
804 struct Scsi_Host *shost = class_to_shost(dev);
805 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
806 struct lpfc_hba *phba = vport->phba;
809 char fwrev[FW_REV_STR_SIZE];
812 lpfc_decode_firmware_rev(phba, fwrev, 1);
813 if_type = phba->sli4_hba.pc_sli4_params.if_type;
814 sli_family = phba->sli4_hba.pc_sli4_params.sli_family;
816 if (phba->sli_rev < LPFC_SLI_REV4)
817 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n",
818 fwrev, phba->sli_rev);
820 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n",
821 fwrev, phba->sli_rev, if_type, sli_family);
827 * lpfc_hdw_show - Return the jedec information about the hba
828 * @dev: class converted to a Scsi_host structure.
829 * @attr: device attribute, not used.
830 * @buf: on return contains the scsi vpd program type.
832 * Returns: size of formatted string.
835 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
838 struct Scsi_Host *shost = class_to_shost(dev);
839 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
840 struct lpfc_hba *phba = vport->phba;
841 lpfc_vpd_t *vp = &phba->vpd;
843 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
844 return scnprintf(buf, PAGE_SIZE, "%s\n", hdw);
848 * lpfc_option_rom_version_show - Return the adapter ROM FCode version
849 * @dev: class converted to a Scsi_host structure.
850 * @attr: device attribute, not used.
851 * @buf: on return contains the ROM and FCode ascii strings.
853 * Returns: size of formatted string.
856 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
859 struct Scsi_Host *shost = class_to_shost(dev);
860 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
861 struct lpfc_hba *phba = vport->phba;
862 char fwrev[FW_REV_STR_SIZE];
864 if (phba->sli_rev < LPFC_SLI_REV4)
865 return scnprintf(buf, PAGE_SIZE, "%s\n",
866 phba->OptionROMVersion);
868 lpfc_decode_firmware_rev(phba, fwrev, 1);
869 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev);
873 * lpfc_state_show - Return the link state of the port
874 * @dev: class converted to a Scsi_host structure.
875 * @attr: device attribute, not used.
876 * @buf: on return contains text describing the state of the link.
879 * The switch statement has no default so zero will be returned.
881 * Returns: size of formatted string.
884 lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
887 struct Scsi_Host *shost = class_to_shost(dev);
888 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
889 struct lpfc_hba *phba = vport->phba;
892 switch (phba->link_state) {
893 case LPFC_LINK_UNKNOWN:
894 case LPFC_WARM_START:
895 case LPFC_INIT_START:
896 case LPFC_INIT_MBX_CMDS:
899 if (phba->hba_flag & LINK_DISABLED)
900 len += scnprintf(buf + len, PAGE_SIZE-len,
901 "Link Down - User disabled\n");
903 len += scnprintf(buf + len, PAGE_SIZE-len,
909 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
911 switch (vport->port_state) {
912 case LPFC_LOCAL_CFG_LINK:
913 len += scnprintf(buf + len, PAGE_SIZE-len,
914 "Configuring Link\n");
918 case LPFC_FABRIC_CFG_LINK:
921 case LPFC_BUILD_DISC_LIST:
923 len += scnprintf(buf + len, PAGE_SIZE - len,
926 case LPFC_VPORT_READY:
927 len += scnprintf(buf + len, PAGE_SIZE - len,
931 case LPFC_VPORT_FAILED:
932 len += scnprintf(buf + len, PAGE_SIZE - len,
936 case LPFC_VPORT_UNKNOWN:
937 len += scnprintf(buf + len, PAGE_SIZE - len,
941 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
942 len += scnprintf(buf + len, PAGE_SIZE-len,
943 " Menlo Maint Mode\n");
944 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
945 if (vport->fc_flag & FC_PUBLIC_LOOP)
946 len += scnprintf(buf + len, PAGE_SIZE-len,
949 len += scnprintf(buf + len, PAGE_SIZE-len,
952 if (vport->fc_flag & FC_FABRIC)
953 len += scnprintf(buf + len, PAGE_SIZE-len,
956 len += scnprintf(buf + len, PAGE_SIZE-len,
961 if ((phba->sli_rev == LPFC_SLI_REV4) &&
962 ((bf_get(lpfc_sli_intf_if_type,
963 &phba->sli4_hba.sli_intf) ==
964 LPFC_SLI_INTF_IF_TYPE_6))) {
965 struct lpfc_trunk_link link = phba->trunk_link;
967 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
968 len += scnprintf(buf + len, PAGE_SIZE - len,
969 "Trunk port 0: Link %s %s\n",
970 (link.link0.state == LPFC_LINK_UP) ?
972 trunk_errmsg[link.link0.fault]);
974 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
975 len += scnprintf(buf + len, PAGE_SIZE - len,
976 "Trunk port 1: Link %s %s\n",
977 (link.link1.state == LPFC_LINK_UP) ?
979 trunk_errmsg[link.link1.fault]);
981 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
982 len += scnprintf(buf + len, PAGE_SIZE - len,
983 "Trunk port 2: Link %s %s\n",
984 (link.link2.state == LPFC_LINK_UP) ?
986 trunk_errmsg[link.link2.fault]);
988 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
989 len += scnprintf(buf + len, PAGE_SIZE - len,
990 "Trunk port 3: Link %s %s\n",
991 (link.link3.state == LPFC_LINK_UP) ?
993 trunk_errmsg[link.link3.fault]);
1001 * lpfc_sli4_protocol_show - Return the fip mode of the HBA
1002 * @dev: class unused variable.
1003 * @attr: device attribute, not used.
1004 * @buf: on return contains the module description text.
1006 * Returns: size of formatted string.
1009 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr,
1012 struct Scsi_Host *shost = class_to_shost(dev);
1013 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1014 struct lpfc_hba *phba = vport->phba;
1016 if (phba->sli_rev < LPFC_SLI_REV4)
1017 return scnprintf(buf, PAGE_SIZE, "fc\n");
1019 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) {
1020 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE)
1021 return scnprintf(buf, PAGE_SIZE, "fcoe\n");
1022 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)
1023 return scnprintf(buf, PAGE_SIZE, "fc\n");
1025 return scnprintf(buf, PAGE_SIZE, "unknown\n");
1029 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage
1030 * (OAS) is supported.
1031 * @dev: class unused variable.
1032 * @attr: device attribute, not used.
1033 * @buf: on return contains the module description text.
1035 * Returns: size of formatted string.
1038 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr,
1041 struct Scsi_Host *shost = class_to_shost(dev);
1042 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
1043 struct lpfc_hba *phba = vport->phba;
1045 return scnprintf(buf, PAGE_SIZE, "%d\n",
1046 phba->sli4_hba.pc_sli4_params.oas_supported);
1050 * lpfc_link_state_store - Transition the link_state on an HBA port
1051 * @dev: class device that is converted into a Scsi_host.
1052 * @attr: device attribute, not used.
1053 * @buf: one or more lpfc_polling_flags values.
1057 * -EINVAL if the buffer is not "up" or "down"
1058 * return from link state change function if non-zero
1059 * length of the buf on success
1062 lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
1063 const char *buf, size_t count)
1065 struct Scsi_Host *shost = class_to_shost(dev);
1066 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1067 struct lpfc_hba *phba = vport->phba;
1069 int status = -EINVAL;
1071 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
1072 (phba->link_state == LPFC_LINK_DOWN))
1073 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
1074 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
1075 (phba->link_state >= LPFC_LINK_UP))
1076 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
1085 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
1086 * @dev: class device that is converted into a Scsi_host.
1087 * @attr: device attribute, not used.
1088 * @buf: on return contains the sum of fc mapped and unmapped.
1091 * Returns the ascii text number of the sum of the fc mapped and unmapped
1094 * Returns: size of formatted string.
1097 lpfc_num_discovered_ports_show(struct device *dev,
1098 struct device_attribute *attr, char *buf)
1100 struct Scsi_Host *shost = class_to_shost(dev);
1101 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1103 return scnprintf(buf, PAGE_SIZE, "%d\n",
1104 vport->fc_map_cnt + vport->fc_unmap_cnt);
1108 * lpfc_issue_lip - Misnomer, name carried over from long ago
1109 * @shost: Scsi_Host pointer.
1112 * Bring the link down gracefully then re-init the link. The firmware will
1113 * re-init the fiber channel interface as required. Does not issue a LIP.
1116 * -EPERM port offline or management commands are being blocked
1117 * -ENOMEM cannot allocate memory for the mailbox command
1118 * -EIO error sending the mailbox command
1122 lpfc_issue_lip(struct Scsi_Host *shost)
1124 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1125 struct lpfc_hba *phba = vport->phba;
1126 LPFC_MBOXQ_t *pmboxq;
1127 int mbxstatus = MBXERR_ERROR;
1130 * If the link is offline, disabled or BLOCK_MGMT_IO
1131 * it doesn't make any sense to allow issue_lip
1133 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1134 (phba->hba_flag & LINK_DISABLED) ||
1135 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
1138 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
1143 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1144 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
1145 pmboxq->u.mb.mbxOwner = OWN_HOST;
1147 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
1149 if ((mbxstatus == MBX_SUCCESS) &&
1150 (pmboxq->u.mb.mbxStatus == 0 ||
1151 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
1152 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1153 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
1154 phba->cfg_link_speed);
1155 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
1156 phba->fc_ratov * 2);
1157 if ((mbxstatus == MBX_SUCCESS) &&
1158 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
1159 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
1160 "2859 SLI authentication is required "
1161 "for INIT_LINK but has not done yet\n");
1164 lpfc_set_loopback_flag(phba);
1165 if (mbxstatus != MBX_TIMEOUT)
1166 mempool_free(pmboxq, phba->mbox_mem_pool);
1168 if (mbxstatus == MBXERR_ERROR)
1175 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock)
1179 spin_lock_irq(lock);
1180 while (!list_empty(q)) {
1181 spin_unlock_irq(lock);
1183 if (cnt++ > 250) { /* 5 secs */
1184 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1186 "Outstanding IO when ",
1187 "bringing Adapter offline\n");
1190 spin_lock_irq(lock);
1192 spin_unlock_irq(lock);
1197 * lpfc_do_offline - Issues a mailbox command to bring the link down
1198 * @phba: lpfc_hba pointer.
1199 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
1202 * Assumes any error from lpfc_do_offline() will be negative.
1203 * Can wait up to 5 seconds for the port ring buffers count
1204 * to reach zero, prints a warning if it is not zero and continues.
1205 * lpfc_workq_post_event() returns a non-zero return code if call fails.
1208 * -EIO error posting the event
1212 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
1214 struct completion online_compl;
1215 struct lpfc_queue *qp = NULL;
1216 struct lpfc_sli_ring *pring;
1217 struct lpfc_sli *psli;
1222 init_completion(&online_compl);
1223 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1224 LPFC_EVT_OFFLINE_PREP);
1228 wait_for_completion(&online_compl);
1236 * If freeing the queues have already started, don't access them.
1237 * Otherwise set FREE_WAIT to indicate that queues are being used
1238 * to hold the freeing process until we finish.
1240 spin_lock_irq(&phba->hbalock);
1241 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) {
1242 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT;
1244 spin_unlock_irq(&phba->hbalock);
1247 spin_unlock_irq(&phba->hbalock);
1249 /* Wait a little for things to settle down, but not
1250 * long enough for dev loss timeout to expire.
1252 if (phba->sli_rev != LPFC_SLI_REV4) {
1253 for (i = 0; i < psli->num_rings; i++) {
1254 pring = &psli->sli3_ring[i];
1255 if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
1260 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1264 if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
1270 spin_lock_irq(&phba->hbalock);
1271 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT;
1272 spin_unlock_irq(&phba->hbalock);
1275 init_completion(&online_compl);
1276 rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
1280 wait_for_completion(&online_compl);
1289 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA
1290 * @phba: lpfc_hba pointer.
1293 * Issues a PCI secondary bus reset for the phba->pcidev.
1296 * First walks the bus_list to ensure only PCI devices with Emulex
1297 * vendor id, device ids that support hot reset, only one occurrence
1298 * of function 0, and all ports on the bus are in offline mode to ensure the
1299 * hot reset only affects one valid HBA.
1302 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2
1303 * -ENODEV, NULL ptr to pcidev
1304 * -EBADSLT, detected invalid device
1305 * -EBUSY, port is not in offline state
1309 lpfc_reset_pci_bus(struct lpfc_hba *phba)
1311 struct pci_dev *pdev = phba->pcidev;
1312 struct Scsi_Host *shost = NULL;
1313 struct lpfc_hba *phba_other = NULL;
1314 struct pci_dev *ptr = NULL;
1317 if (phba->cfg_enable_hba_reset != 2)
1321 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n");
1325 res = lpfc_check_pci_resettable(phba);
1329 /* Walk the list of devices on the pci_dev's bus */
1330 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) {
1331 /* Check port is offline */
1332 shost = pci_get_drvdata(ptr);
1335 ((struct lpfc_vport *)shost->hostdata)->phba;
1336 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) {
1337 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT,
1338 "8349 WWPN = 0x%02x%02x%02x%02x"
1339 "%02x%02x%02x%02x is not "
1341 phba_other->wwpn[0],
1342 phba_other->wwpn[1],
1343 phba_other->wwpn[2],
1344 phba_other->wwpn[3],
1345 phba_other->wwpn[4],
1346 phba_other->wwpn[5],
1347 phba_other->wwpn[6],
1348 phba_other->wwpn[7]);
1354 /* Issue PCI bus reset */
1355 res = pci_reset_bus(pdev);
1357 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1358 "8350 PCI reset bus failed: %d\n", res);
1365 * lpfc_selective_reset - Offline then onlines the port
1366 * @phba: lpfc_hba pointer.
1369 * If the port is configured to allow a reset then the hba is brought
1370 * offline then online.
1373 * Assumes any error from lpfc_do_offline() will be negative.
1374 * Do not make this function static.
1377 * lpfc_do_offline() return code if not zero
1378 * -EIO reset not configured or error posting the event
1382 lpfc_selective_reset(struct lpfc_hba *phba)
1384 struct completion online_compl;
1388 if (!phba->cfg_enable_hba_reset)
1391 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) {
1392 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1398 init_completion(&online_compl);
1399 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1404 wait_for_completion(&online_compl);
1413 * lpfc_issue_reset - Selectively resets an adapter
1414 * @dev: class device that is converted into a Scsi_host.
1415 * @attr: device attribute, not used.
1416 * @buf: containing the string "selective".
1417 * @count: unused variable.
1420 * If the buf contains the string "selective" then lpfc_selective_reset()
1421 * is called to perform the reset.
1424 * Assumes any error from lpfc_selective_reset() will be negative.
1425 * If lpfc_selective_reset() returns zero then the length of the buffer
1426 * is returned which indicates success
1429 * -EINVAL if the buffer does not contain the string "selective"
1430 * length of buf if lpfc-selective_reset() if the call succeeds
1431 * return value of lpfc_selective_reset() if the call fails
1434 lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
1435 const char *buf, size_t count)
1437 struct Scsi_Host *shost = class_to_shost(dev);
1438 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1439 struct lpfc_hba *phba = vport->phba;
1440 int status = -EINVAL;
1442 if (!phba->cfg_enable_hba_reset)
1445 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
1446 status = phba->lpfc_selective_reset(phba);
1455 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
1456 * @phba: lpfc_hba pointer.
1459 * SLI4 interface type-2 device to wait on the sliport status register for
1460 * the readyness after performing a firmware reset.
1463 * zero for success, -EPERM when port does not have privilege to perform the
1464 * reset, -EIO when port timeout from recovering from the reset.
1467 * As the caller will interpret the return code by value, be careful in making
1468 * change or addition to return codes.
1471 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
1473 struct lpfc_register portstat_reg = {0};
1477 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
1478 &portstat_reg.word0);
1480 /* verify if privileged for the request operation */
1481 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) &&
1482 !bf_get(lpfc_sliport_status_err, &portstat_reg))
1485 /* wait for the SLI port firmware ready after firmware reset */
1486 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
1488 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
1489 &portstat_reg.word0);
1490 if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
1492 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
1494 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
1499 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
1506 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
1507 * @phba: lpfc_hba pointer.
1510 * Request SLI4 interface type-2 device to perform a physical register set
1517 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
1519 struct completion online_compl;
1520 struct pci_dev *pdev = phba->pcidev;
1521 uint32_t before_fc_flag;
1522 uint32_t sriov_nr_virtfn;
1524 int status = 0, rc = 0;
1525 int job_posted = 1, sriov_err;
1527 if (!phba->cfg_enable_hba_reset)
1530 if ((phba->sli_rev < LPFC_SLI_REV4) ||
1531 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
1532 LPFC_SLI_INTF_IF_TYPE_2))
1535 /* Keep state if we need to restore back */
1536 before_fc_flag = phba->pport->fc_flag;
1537 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;
1539 /* Disable SR-IOV virtual functions if enabled */
1540 if (phba->cfg_sriov_nr_virtfn) {
1541 pci_disable_sriov(pdev);
1542 phba->cfg_sriov_nr_virtfn = 0;
1545 if (opcode == LPFC_FW_DUMP)
1546 phba->hba_flag |= HBA_FW_DUMP_OP;
1548 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1551 phba->hba_flag &= ~HBA_FW_DUMP_OP;
1555 /* wait for the device to be quiesced before firmware reset */
1558 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
1559 LPFC_CTL_PDEV_CTL_OFFSET);
1561 if (opcode == LPFC_FW_DUMP)
1562 reg_val |= LPFC_FW_DUMP_REQUEST;
1563 else if (opcode == LPFC_FW_RESET)
1564 reg_val |= LPFC_CTL_PDEV_CTL_FRST;
1565 else if (opcode == LPFC_DV_RESET)
1566 reg_val |= LPFC_CTL_PDEV_CTL_DRST;
1568 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
1569 LPFC_CTL_PDEV_CTL_OFFSET);
1571 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
1573 /* delay driver action following IF_TYPE_2 reset */
1574 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1577 /* no privilege for reset */
1578 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1579 "3150 No privilege to perform the requested "
1580 "access: x%x\n", reg_val);
1581 } else if (rc == -EIO) {
1582 /* reset failed, there is nothing more we can do */
1583 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1584 "3153 Fail to perform the requested "
1585 "access: x%x\n", reg_val);
1589 /* keep the original port state */
1590 if (before_fc_flag & FC_OFFLINE_MODE)
1593 init_completion(&online_compl);
1594 job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
1599 wait_for_completion(&online_compl);
1602 /* in any case, restore the virtual functions enabled as before */
1603 if (sriov_nr_virtfn) {
1605 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
1607 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
1610 /* return proper error code */
1621 * lpfc_nport_evt_cnt_show - Return the number of nport events
1622 * @dev: class device that is converted into a Scsi_host.
1623 * @attr: device attribute, not used.
1624 * @buf: on return contains the ascii number of nport events.
1626 * Returns: size of formatted string.
1629 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
1632 struct Scsi_Host *shost = class_to_shost(dev);
1633 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1634 struct lpfc_hba *phba = vport->phba;
1636 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
1640 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out)
1642 LPFC_MBOXQ_t *mbox = NULL;
1643 unsigned long val = 0;
1647 if (!strncmp("enable", buff_out,
1648 strlen("enable"))) {
1649 pval = buff_out + strlen("enable") + 1;
1650 rc = kstrtoul(pval, 0, &val);
1652 return rc; /* Invalid number */
1653 } else if (!strncmp("disable", buff_out,
1654 strlen("disable"))) {
1657 return -EINVAL; /* Invalid command */
1662 val = 0x0; /* Disable */
1665 val = 0x1; /* Enable two port trunk */
1668 val = 0x2; /* Enable four port trunk */
1674 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1675 "0070 Set trunk mode with val %ld ", val);
1677 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1681 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
1682 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE,
1683 12, LPFC_SLI4_MBX_EMBED);
1685 bf_set(lpfc_mbx_set_trunk_mode,
1686 &mbox->u.mqe.un.set_trunk_mode,
1688 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
1690 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1691 "0071 Set trunk mode failed with status: %d",
1693 if (rc != MBX_TIMEOUT)
1694 mempool_free(mbox, phba->mbox_mem_pool);
1700 * lpfc_board_mode_show - Return the state of the board
1701 * @dev: class device that is converted into a Scsi_host.
1702 * @attr: device attribute, not used.
1703 * @buf: on return contains the state of the adapter.
1705 * Returns: size of formatted string.
1708 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
1711 struct Scsi_Host *shost = class_to_shost(dev);
1712 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1713 struct lpfc_hba *phba = vport->phba;
1716 if (phba->link_state == LPFC_HBA_ERROR)
1718 else if (phba->link_state == LPFC_WARM_START)
1719 state = "warm start";
1720 else if (phba->link_state == LPFC_INIT_START)
1725 return scnprintf(buf, PAGE_SIZE, "%s\n", state);
1729 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
1730 * @dev: class device that is converted into a Scsi_host.
1731 * @attr: device attribute, not used.
1732 * @buf: containing one of the strings "online", "offline", "warm" or "error".
1733 * @count: unused variable.
1736 * -EACCES if enable hba reset not enabled
1737 * -EINVAL if the buffer does not contain a valid string (see above)
1738 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
1739 * buf length greater than zero indicates success
1742 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
1743 const char *buf, size_t count)
1745 struct Scsi_Host *shost = class_to_shost(dev);
1746 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1747 struct lpfc_hba *phba = vport->phba;
1748 struct completion online_compl;
1749 char *board_mode_str = NULL;
1753 if (!phba->cfg_enable_hba_reset) {
1755 goto board_mode_out;
1758 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1759 "3050 lpfc_board_mode set to %s\n", buf);
1761 init_completion(&online_compl);
1763 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
1764 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1768 goto board_mode_out;
1770 wait_for_completion(&online_compl);
1773 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
1774 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1775 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
1776 if (phba->sli_rev == LPFC_SLI_REV4)
1779 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
1780 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
1781 if (phba->sli_rev == LPFC_SLI_REV4)
1784 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
1785 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
1786 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
1787 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
1788 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
1789 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
1790 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
1791 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1)
1793 status = lpfc_reset_pci_bus(phba);
1794 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0)
1795 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk"));
1803 board_mode_str = strchr(buf, '\n');
1805 *board_mode_str = '\0';
1806 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1807 "3097 Failed \"%s\", status(%d), "
1809 buf, status, phba->pport->fc_flag);
1815 * lpfc_get_hba_info - Return various bits of informaton about the adapter
1816 * @phba: pointer to the adapter structure.
1817 * @mxri: max xri count.
1818 * @axri: available xri count.
1819 * @mrpi: max rpi count.
1820 * @arpi: available rpi count.
1821 * @mvpi: max vpi count.
1822 * @avpi: available vpi count.
1825 * If an integer pointer for an count is not null then the value for the
1826 * count is returned.
1833 lpfc_get_hba_info(struct lpfc_hba *phba,
1834 uint32_t *mxri, uint32_t *axri,
1835 uint32_t *mrpi, uint32_t *arpi,
1836 uint32_t *mvpi, uint32_t *avpi)
1838 struct lpfc_mbx_read_config *rd_config;
1839 LPFC_MBOXQ_t *pmboxq;
1845 * prevent udev from issuing mailbox commands until the port is
1848 if (phba->link_state < LPFC_LINK_DOWN ||
1849 !phba->mbox_mem_pool ||
1850 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
1853 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
1856 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1859 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1861 pmb = &pmboxq->u.mb;
1862 pmb->mbxCommand = MBX_READ_CONFIG;
1863 pmb->mbxOwner = OWN_HOST;
1864 pmboxq->ctx_buf = NULL;
1866 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1867 rc = MBX_NOT_FINISHED;
1869 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1871 if (rc != MBX_SUCCESS) {
1872 if (rc != MBX_TIMEOUT)
1873 mempool_free(pmboxq, phba->mbox_mem_pool);
1877 if (phba->sli_rev == LPFC_SLI_REV4) {
1878 rd_config = &pmboxq->u.mqe.un.rd_config;
1880 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
1882 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
1883 phba->sli4_hba.max_cfg_param.rpi_used;
1885 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
1887 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
1888 phba->sli4_hba.max_cfg_param.xri_used;
1890 /* Account for differences with SLI-3. Get vpi count from
1891 * mailbox data and subtract one for max vpi value.
1893 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
1894 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
1896 /* Limit the max we support */
1897 if (max_vpi > LPFC_MAX_VPI)
1898 max_vpi = LPFC_MAX_VPI;
1902 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
1905 *mrpi = pmb->un.varRdConfig.max_rpi;
1907 *arpi = pmb->un.varRdConfig.avail_rpi;
1909 *mxri = pmb->un.varRdConfig.max_xri;
1911 *axri = pmb->un.varRdConfig.avail_xri;
1913 *mvpi = pmb->un.varRdConfig.max_vpi;
1915 /* avail_vpi is only valid if link is up and ready */
1916 if (phba->link_state == LPFC_HBA_READY)
1917 *avpi = pmb->un.varRdConfig.avail_vpi;
1919 *avpi = pmb->un.varRdConfig.max_vpi;
1923 mempool_free(pmboxq, phba->mbox_mem_pool);
1928 * lpfc_max_rpi_show - Return maximum rpi
1929 * @dev: class device that is converted into a Scsi_host.
1930 * @attr: device attribute, not used.
1931 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
1934 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1935 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1936 * to "Unknown" and the buffer length is returned, therefore the caller
1937 * must check for "Unknown" in the buffer to detect a failure.
1939 * Returns: size of formatted string.
1942 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
1945 struct Scsi_Host *shost = class_to_shost(dev);
1946 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1947 struct lpfc_hba *phba = vport->phba;
1950 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
1951 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
1952 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
1956 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
1957 * @dev: class device that is converted into a Scsi_host.
1958 * @attr: device attribute, not used.
1959 * @buf: containing the used rpi count in decimal or "Unknown".
1962 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
1963 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1964 * to "Unknown" and the buffer length is returned, therefore the caller
1965 * must check for "Unknown" in the buffer to detect a failure.
1967 * Returns: size of formatted string.
1970 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
1973 struct Scsi_Host *shost = class_to_shost(dev);
1974 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1975 struct lpfc_hba *phba = vport->phba;
1978 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1979 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1980 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
1984 * lpfc_max_xri_show - Return maximum xri
1985 * @dev: class device that is converted into a Scsi_host.
1986 * @attr: device attribute, not used.
1987 * @buf: on return contains the maximum xri count in decimal or "Unknown".
1990 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1991 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1992 * to "Unknown" and the buffer length is returned, therefore the caller
1993 * must check for "Unknown" in the buffer to detect a failure.
1995 * Returns: size of formatted string.
1998 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
2001 struct Scsi_Host *shost = class_to_shost(dev);
2002 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2003 struct lpfc_hba *phba = vport->phba;
2006 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
2007 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
2008 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
2012 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
2013 * @dev: class device that is converted into a Scsi_host.
2014 * @attr: device attribute, not used.
2015 * @buf: on return contains the used xri count in decimal or "Unknown".
2018 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
2019 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2020 * to "Unknown" and the buffer length is returned, therefore the caller
2021 * must check for "Unknown" in the buffer to detect a failure.
2023 * Returns: size of formatted string.
2026 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
2029 struct Scsi_Host *shost = class_to_shost(dev);
2030 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2031 struct lpfc_hba *phba = vport->phba;
2034 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
2035 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
2036 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
2040 * lpfc_max_vpi_show - Return maximum vpi
2041 * @dev: class device that is converted into a Scsi_host.
2042 * @attr: device attribute, not used.
2043 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
2046 * Calls lpfc_get_hba_info() asking for just the mvpi count.
2047 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2048 * to "Unknown" and the buffer length is returned, therefore the caller
2049 * must check for "Unknown" in the buffer to detect a failure.
2051 * Returns: size of formatted string.
2054 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
2057 struct Scsi_Host *shost = class_to_shost(dev);
2058 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2059 struct lpfc_hba *phba = vport->phba;
2062 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
2063 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
2064 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
2068 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
2069 * @dev: class device that is converted into a Scsi_host.
2070 * @attr: device attribute, not used.
2071 * @buf: on return contains the used vpi count in decimal or "Unknown".
2074 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
2075 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2076 * to "Unknown" and the buffer length is returned, therefore the caller
2077 * must check for "Unknown" in the buffer to detect a failure.
2079 * Returns: size of formatted string.
2082 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
2085 struct Scsi_Host *shost = class_to_shost(dev);
2086 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2087 struct lpfc_hba *phba = vport->phba;
2090 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
2091 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
2092 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
2096 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
2097 * @dev: class device that is converted into a Scsi_host.
2098 * @attr: device attribute, not used.
2099 * @buf: text that must be interpreted to determine if npiv is supported.
2102 * Buffer will contain text indicating npiv is not suppoerted on the port,
2103 * the port is an NPIV physical port, or it is an npiv virtual port with
2104 * the id of the vport.
2106 * Returns: size of formatted string.
2109 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
2112 struct Scsi_Host *shost = class_to_shost(dev);
2113 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2114 struct lpfc_hba *phba = vport->phba;
2116 if (!(phba->max_vpi))
2117 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
2118 if (vport->port_type == LPFC_PHYSICAL_PORT)
2119 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n");
2120 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
2124 * lpfc_poll_show - Return text about poll support for the adapter
2125 * @dev: class device that is converted into a Scsi_host.
2126 * @attr: device attribute, not used.
2127 * @buf: on return contains the cfg_poll in hex.
2130 * cfg_poll should be a lpfc_polling_flags type.
2132 * Returns: size of formatted string.
2135 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
2138 struct Scsi_Host *shost = class_to_shost(dev);
2139 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2140 struct lpfc_hba *phba = vport->phba;
2142 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
2146 * lpfc_poll_store - Set the value of cfg_poll for the adapter
2147 * @dev: class device that is converted into a Scsi_host.
2148 * @attr: device attribute, not used.
2149 * @buf: one or more lpfc_polling_flags values.
2153 * buf contents converted to integer and checked for a valid value.
2156 * -EINVAL if the buffer connot be converted or is out of range
2157 * length of the buf on success
2160 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
2161 const char *buf, size_t count)
2163 struct Scsi_Host *shost = class_to_shost(dev);
2164 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2165 struct lpfc_hba *phba = vport->phba;
2170 if (!isdigit(buf[0]))
2173 if (sscanf(buf, "%i", &val) != 1)
2176 if ((val & 0x3) != val)
2179 if (phba->sli_rev == LPFC_SLI_REV4)
2182 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2183 "3051 lpfc_poll changed from %d to %d\n",
2184 phba->cfg_poll, val);
2186 spin_lock_irq(&phba->hbalock);
2188 old_val = phba->cfg_poll;
2190 if (val & ENABLE_FCP_RING_POLLING) {
2191 if ((val & DISABLE_FCP_RING_INT) &&
2192 !(old_val & DISABLE_FCP_RING_INT)) {
2193 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
2194 spin_unlock_irq(&phba->hbalock);
2197 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
2198 writel(creg_val, phba->HCregaddr);
2199 readl(phba->HCregaddr); /* flush */
2201 lpfc_poll_start_timer(phba);
2203 } else if (val != 0x0) {
2204 spin_unlock_irq(&phba->hbalock);
2208 if (!(val & DISABLE_FCP_RING_INT) &&
2209 (old_val & DISABLE_FCP_RING_INT))
2211 spin_unlock_irq(&phba->hbalock);
2212 del_timer(&phba->fcp_poll_timer);
2213 spin_lock_irq(&phba->hbalock);
2214 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
2215 spin_unlock_irq(&phba->hbalock);
2218 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
2219 writel(creg_val, phba->HCregaddr);
2220 readl(phba->HCregaddr); /* flush */
2223 phba->cfg_poll = val;
2225 spin_unlock_irq(&phba->hbalock);
2231 * lpfc_fips_level_show - Return the current FIPS level for the HBA
2232 * @dev: class unused variable.
2233 * @attr: device attribute, not used.
2234 * @buf: on return contains the module description text.
2236 * Returns: size of formatted string.
2239 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr,
2242 struct Scsi_Host *shost = class_to_shost(dev);
2243 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2244 struct lpfc_hba *phba = vport->phba;
2246 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
2250 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
2251 * @dev: class unused variable.
2252 * @attr: device attribute, not used.
2253 * @buf: on return contains the module description text.
2255 * Returns: size of formatted string.
2258 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr,
2261 struct Scsi_Host *shost = class_to_shost(dev);
2262 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2263 struct lpfc_hba *phba = vport->phba;
2265 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
2269 * lpfc_dss_show - Return the current state of dss and the configured state
2270 * @dev: class converted to a Scsi_host structure.
2271 * @attr: device attribute, not used.
2272 * @buf: on return contains the formatted text.
2274 * Returns: size of formatted string.
2277 lpfc_dss_show(struct device *dev, struct device_attribute *attr,
2280 struct Scsi_Host *shost = class_to_shost(dev);
2281 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2282 struct lpfc_hba *phba = vport->phba;
2284 return scnprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
2285 (phba->cfg_enable_dss) ? "Enabled" : "Disabled",
2286 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
2291 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
2292 * @dev: class converted to a Scsi_host structure.
2293 * @attr: device attribute, not used.
2294 * @buf: on return contains the formatted support level.
2297 * Returns the maximum number of virtual functions a physical function can
2298 * support, 0 will be returned if called on virtual function.
2300 * Returns: size of formatted string.
2303 lpfc_sriov_hw_max_virtfn_show(struct device *dev,
2304 struct device_attribute *attr,
2307 struct Scsi_Host *shost = class_to_shost(dev);
2308 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2309 struct lpfc_hba *phba = vport->phba;
2310 uint16_t max_nr_virtfn;
2312 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
2313 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
2316 static inline bool lpfc_rangecheck(uint val, uint min, uint max)
2318 return val >= min && val <= max;
2322 * lpfc_enable_bbcr_set: Sets an attribute value.
2323 * @phba: pointer the the adapter structure.
2324 * @val: integer attribute value.
2327 * Validates the min and max values then sets the
2328 * adapter config field if in the valid range. prints error message
2329 * and does not set the parameter if invalid.
2333 * -EINVAL if val is invalid
2336 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val)
2338 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) {
2339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2340 "3068 %s_enable_bbcr changed from %d to %d\n",
2341 LPFC_DRIVER_NAME, phba->cfg_enable_bbcr, val);
2342 phba->cfg_enable_bbcr = val;
2345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2346 "0451 %s_enable_bbcr cannot set to %d, range is 0, 1\n",
2347 LPFC_DRIVER_NAME, val);
2352 * lpfc_param_show - Return a cfg attribute value in decimal
2355 * Macro that given an attr e.g. hba_queue_depth expands
2356 * into a function with the name lpfc_hba_queue_depth_show.
2358 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
2359 * @dev: class device that is converted into a Scsi_host.
2360 * @attr: device attribute, not used.
2361 * @buf: on return contains the attribute value in decimal.
2363 * Returns: size of formatted string.
2365 #define lpfc_param_show(attr) \
2367 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2370 struct Scsi_Host *shost = class_to_shost(dev);\
2371 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2372 struct lpfc_hba *phba = vport->phba;\
2373 return scnprintf(buf, PAGE_SIZE, "%d\n",\
2378 * lpfc_param_hex_show - Return a cfg attribute value in hex
2381 * Macro that given an attr e.g. hba_queue_depth expands
2382 * into a function with the name lpfc_hba_queue_depth_show
2384 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
2385 * @dev: class device that is converted into a Scsi_host.
2386 * @attr: device attribute, not used.
2387 * @buf: on return contains the attribute value in hexadecimal.
2389 * Returns: size of formatted string.
2391 #define lpfc_param_hex_show(attr) \
2393 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2396 struct Scsi_Host *shost = class_to_shost(dev);\
2397 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2398 struct lpfc_hba *phba = vport->phba;\
2400 val = phba->cfg_##attr;\
2401 return scnprintf(buf, PAGE_SIZE, "%#x\n",\
2406 * lpfc_param_init - Initializes a cfg attribute
2409 * Macro that given an attr e.g. hba_queue_depth expands
2410 * into a function with the name lpfc_hba_queue_depth_init. The macro also
2411 * takes a default argument, a minimum and maximum argument.
2413 * lpfc_##attr##_init: Initializes an attribute.
2414 * @phba: pointer the the adapter structure.
2415 * @val: integer attribute value.
2417 * Validates the min and max values then sets the adapter config field
2418 * accordingly, or uses the default if out of range and prints an error message.
2422 * -EINVAL if default used
2424 #define lpfc_param_init(attr, default, minval, maxval) \
2426 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
2428 if (lpfc_rangecheck(val, minval, maxval)) {\
2429 phba->cfg_##attr = val;\
2432 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
2433 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
2434 "allowed range is ["#minval", "#maxval"]\n", val); \
2435 phba->cfg_##attr = default;\
2440 * lpfc_param_set - Set a cfg attribute value
2443 * Macro that given an attr e.g. hba_queue_depth expands
2444 * into a function with the name lpfc_hba_queue_depth_set
2446 * lpfc_##attr##_set: Sets an attribute value.
2447 * @phba: pointer the the adapter structure.
2448 * @val: integer attribute value.
2451 * Validates the min and max values then sets the
2452 * adapter config field if in the valid range. prints error message
2453 * and does not set the parameter if invalid.
2457 * -EINVAL if val is invalid
2459 #define lpfc_param_set(attr, default, minval, maxval) \
2461 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
2463 if (lpfc_rangecheck(val, minval, maxval)) {\
2464 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
2465 "3052 lpfc_" #attr " changed from %d to %d\n", \
2466 phba->cfg_##attr, val); \
2467 phba->cfg_##attr = val;\
2470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
2471 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
2472 "allowed range is ["#minval", "#maxval"]\n", val); \
2477 * lpfc_param_store - Set a vport attribute value
2480 * Macro that given an attr e.g. hba_queue_depth expands
2481 * into a function with the name lpfc_hba_queue_depth_store.
2483 * lpfc_##attr##_store: Set an sttribute value.
2484 * @dev: class device that is converted into a Scsi_host.
2485 * @attr: device attribute, not used.
2486 * @buf: contains the attribute value in ascii.
2490 * Convert the ascii text number to an integer, then
2491 * use the lpfc_##attr##_set function to set the value.
2494 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
2495 * length of buffer upon success.
2497 #define lpfc_param_store(attr) \
2499 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
2500 const char *buf, size_t count) \
2502 struct Scsi_Host *shost = class_to_shost(dev);\
2503 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2504 struct lpfc_hba *phba = vport->phba;\
2506 if (!isdigit(buf[0]))\
2508 if (sscanf(buf, "%i", &val) != 1)\
2510 if (lpfc_##attr##_set(phba, val) == 0) \
2511 return strlen(buf);\
2517 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
2520 * Macro that given an attr e.g. hba_queue_depth expands
2521 * into a function with the name lpfc_hba_queue_depth_show
2523 * lpfc_##attr##_show: prints the attribute value in decimal.
2524 * @dev: class device that is converted into a Scsi_host.
2525 * @attr: device attribute, not used.
2526 * @buf: on return contains the attribute value in decimal.
2528 * Returns: length of formatted string.
2530 #define lpfc_vport_param_show(attr) \
2532 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2535 struct Scsi_Host *shost = class_to_shost(dev);\
2536 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2537 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
2541 * lpfc_vport_param_hex_show - Return hex formatted attribute value
2544 * Macro that given an attr e.g.
2545 * hba_queue_depth expands into a function with the name
2546 * lpfc_hba_queue_depth_show
2548 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
2549 * @dev: class device that is converted into a Scsi_host.
2550 * @attr: device attribute, not used.
2551 * @buf: on return contains the attribute value in hexadecimal.
2553 * Returns: length of formatted string.
2555 #define lpfc_vport_param_hex_show(attr) \
2557 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2560 struct Scsi_Host *shost = class_to_shost(dev);\
2561 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2562 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
2566 * lpfc_vport_param_init - Initialize a vport cfg attribute
2569 * Macro that given an attr e.g. hba_queue_depth expands
2570 * into a function with the name lpfc_hba_queue_depth_init. The macro also
2571 * takes a default argument, a minimum and maximum argument.
2573 * lpfc_##attr##_init: validates the min and max values then sets the
2574 * adapter config field accordingly, or uses the default if out of range
2575 * and prints an error message.
2576 * @phba: pointer the the adapter structure.
2577 * @val: integer attribute value.
2581 * -EINVAL if default used
2583 #define lpfc_vport_param_init(attr, default, minval, maxval) \
2585 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
2587 if (lpfc_rangecheck(val, minval, maxval)) {\
2588 vport->cfg_##attr = val;\
2591 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
2592 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
2593 "allowed range is ["#minval", "#maxval"]\n", val); \
2594 vport->cfg_##attr = default;\
2599 * lpfc_vport_param_set - Set a vport cfg attribute
2602 * Macro that given an attr e.g. hba_queue_depth expands
2603 * into a function with the name lpfc_hba_queue_depth_set
2605 * lpfc_##attr##_set: validates the min and max values then sets the
2606 * adapter config field if in the valid range. prints error message
2607 * and does not set the parameter if invalid.
2608 * @phba: pointer the the adapter structure.
2609 * @val: integer attribute value.
2613 * -EINVAL if val is invalid
2615 #define lpfc_vport_param_set(attr, default, minval, maxval) \
2617 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
2619 if (lpfc_rangecheck(val, minval, maxval)) {\
2620 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
2621 "3053 lpfc_" #attr \
2622 " changed from %d (x%x) to %d (x%x)\n", \
2623 vport->cfg_##attr, vport->cfg_##attr, \
2625 vport->cfg_##attr = val;\
2628 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
2629 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
2630 "allowed range is ["#minval", "#maxval"]\n", val); \
2635 * lpfc_vport_param_store - Set a vport attribute
2638 * Macro that given an attr e.g. hba_queue_depth
2639 * expands into a function with the name lpfc_hba_queue_depth_store
2641 * lpfc_##attr##_store: convert the ascii text number to an integer, then
2642 * use the lpfc_##attr##_set function to set the value.
2643 * @cdev: class device that is converted into a Scsi_host.
2644 * @buf: contains the attribute value in decimal.
2648 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
2649 * length of buffer upon success.
2651 #define lpfc_vport_param_store(attr) \
2653 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
2654 const char *buf, size_t count) \
2656 struct Scsi_Host *shost = class_to_shost(dev);\
2657 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2659 if (!isdigit(buf[0]))\
2661 if (sscanf(buf, "%i", &val) != 1)\
2663 if (lpfc_##attr##_set(vport, val) == 0) \
2664 return strlen(buf);\
2670 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL);
2671 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL);
2672 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
2673 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
2674 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
2675 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
2676 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
2677 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
2678 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
2679 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
2680 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
2681 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
2682 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
2683 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
2684 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
2685 lpfc_link_state_store);
2686 static DEVICE_ATTR(option_rom_version, S_IRUGO,
2687 lpfc_option_rom_version_show, NULL);
2688 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
2689 lpfc_num_discovered_ports_show, NULL);
2690 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
2691 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
2692 static DEVICE_ATTR_RO(lpfc_drvr_version);
2693 static DEVICE_ATTR_RO(lpfc_enable_fip);
2694 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
2695 lpfc_board_mode_show, lpfc_board_mode_store);
2696 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
2697 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
2698 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
2699 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
2700 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
2701 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
2702 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
2703 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
2704 static DEVICE_ATTR_RO(lpfc_temp_sensor);
2705 static DEVICE_ATTR_RO(lpfc_fips_level);
2706 static DEVICE_ATTR_RO(lpfc_fips_rev);
2707 static DEVICE_ATTR_RO(lpfc_dss);
2708 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn);
2709 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
2710 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
2713 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
2716 * lpfc_wwn_set - Convert string to the 8 byte WWN value.
2718 * @cnt: Length of string.
2719 * @wwn: Array to receive converted wwn value.
2722 * -EINVAL if the buffer does not contain a valid wwn
2726 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[])
2730 /* Count may include a LF at end of string */
2731 if (buf[cnt-1] == '\n')
2734 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) ||
2735 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
2738 memset(wwn, 0, WWN_SZ);
2740 /* Validate and store the new name */
2741 for (i = 0, j = 0; i < 16; i++) {
2742 if ((*buf >= 'a') && (*buf <= 'f'))
2743 j = ((j << 4) | ((*buf++ - 'a') + 10));
2744 else if ((*buf >= 'A') && (*buf <= 'F'))
2745 j = ((j << 4) | ((*buf++ - 'A') + 10));
2746 else if ((*buf >= '0') && (*buf <= '9'))
2747 j = ((j << 4) | (*buf++ - '0'));
2751 wwn[i/2] = j & 0xff;
2758 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
2759 * @dev: class device that is converted into a Scsi_host.
2760 * @attr: device attribute, not used.
2761 * @buf: containing the string lpfc_soft_wwn_key.
2762 * @count: must be size of lpfc_soft_wwn_key.
2765 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
2766 * length of buf indicates success
2769 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
2770 const char *buf, size_t count)
2772 struct Scsi_Host *shost = class_to_shost(dev);
2773 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2774 struct lpfc_hba *phba = vport->phba;
2775 unsigned int cnt = count;
2776 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
2777 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0];
2780 * We're doing a simple sanity check for soft_wwpn setting.
2781 * We require that the user write a specific key to enable
2782 * the soft_wwpn attribute to be settable. Once the attribute
2783 * is written, the enable key resets. If further updates are
2784 * desired, the key must be written again to re-enable the
2787 * The "key" is not secret - it is a hardcoded string shown
2788 * here. The intent is to protect against the random user or
2789 * application that is just writing attributes.
2791 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) {
2792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2793 "0051 "LPFC_DRIVER_NAME" soft wwpn can not"
2794 " be enabled: fawwpn is enabled\n");
2798 /* count may include a LF at end of string */
2799 if (buf[cnt-1] == '\n')
2802 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
2803 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
2806 phba->soft_wwn_enable = 1;
2808 dev_printk(KERN_WARNING, &phba->pcidev->dev,
2809 "lpfc%d: soft_wwpn assignment has been enabled.\n",
2811 dev_printk(KERN_WARNING, &phba->pcidev->dev,
2812 " The soft_wwpn feature is not supported by Broadcom.");
2816 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable);
2819 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
2820 * @dev: class device that is converted into a Scsi_host.
2821 * @attr: device attribute, not used.
2822 * @buf: on return contains the wwpn in hexadecimal.
2824 * Returns: size of formatted string.
2827 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
2830 struct Scsi_Host *shost = class_to_shost(dev);
2831 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2832 struct lpfc_hba *phba = vport->phba;
2834 return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
2835 (unsigned long long)phba->cfg_soft_wwpn);
2839 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
2840 * @dev class device that is converted into a Scsi_host.
2841 * @attr: device attribute, not used.
2842 * @buf: contains the wwpn in hexadecimal.
2843 * @count: number of wwpn bytes in buf
2846 * -EACCES hba reset not enabled, adapter over temp
2847 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
2848 * -EIO error taking adapter offline or online
2849 * value of count on success
2852 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
2853 const char *buf, size_t count)
2855 struct Scsi_Host *shost = class_to_shost(dev);
2856 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2857 struct lpfc_hba *phba = vport->phba;
2858 struct completion online_compl;
2859 int stat1 = 0, stat2 = 0;
2860 unsigned int cnt = count;
2864 if (!phba->cfg_enable_hba_reset)
2866 spin_lock_irq(&phba->hbalock);
2867 if (phba->over_temp_state == HBA_OVER_TEMP) {
2868 spin_unlock_irq(&phba->hbalock);
2871 spin_unlock_irq(&phba->hbalock);
2872 /* count may include a LF at end of string */
2873 if (buf[cnt-1] == '\n')
2876 if (!phba->soft_wwn_enable)
2879 /* lock setting wwpn, wwnn down */
2880 phba->soft_wwn_enable = 0;
2882 rc = lpfc_wwn_set(buf, cnt, wwpn);
2884 /* not able to set wwpn, unlock it */
2885 phba->soft_wwn_enable = 1;
2889 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
2890 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
2891 if (phba->cfg_soft_wwnn)
2892 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
2894 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2895 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
2897 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
2899 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2900 "0463 lpfc_soft_wwpn attribute set failed to "
2901 "reinit adapter - %d\n", stat1);
2902 init_completion(&online_compl);
2903 rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
2908 wait_for_completion(&online_compl);
2910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2911 "0464 lpfc_soft_wwpn attribute set failed to "
2912 "reinit adapter - %d\n", stat2);
2913 return (stat1 || stat2) ? -EIO : count;
2915 static DEVICE_ATTR_RW(lpfc_soft_wwpn);
2918 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
2919 * @dev: class device that is converted into a Scsi_host.
2920 * @attr: device attribute, not used.
2921 * @buf: on return contains the wwnn in hexadecimal.
2923 * Returns: size of formatted string.
2926 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
2929 struct Scsi_Host *shost = class_to_shost(dev);
2930 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2931 return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
2932 (unsigned long long)phba->cfg_soft_wwnn);
2936 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
2937 * @cdev: class device that is converted into a Scsi_host.
2938 * @buf: contains the ww node name in hexadecimal.
2939 * @count: number of wwnn bytes in buf.
2942 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
2943 * value of count on success
2946 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
2947 const char *buf, size_t count)
2949 struct Scsi_Host *shost = class_to_shost(dev);
2950 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2951 unsigned int cnt = count;
2955 /* count may include a LF at end of string */
2956 if (buf[cnt-1] == '\n')
2959 if (!phba->soft_wwn_enable)
2962 rc = lpfc_wwn_set(buf, cnt, wwnn);
2964 /* Allow wwnn to be set many times, as long as the enable
2965 * is set. However, once the wwpn is set, everything locks.
2970 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
2972 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2973 "lpfc%d: soft_wwnn set. Value will take effect upon "
2974 "setting of the soft_wwpn\n", phba->brd_no);
2978 static DEVICE_ATTR_RW(lpfc_soft_wwnn);
2981 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
2982 * Optimized Access Storage (OAS) operations.
2983 * @dev: class device that is converted into a Scsi_host.
2984 * @attr: device attribute, not used.
2985 * @buf: buffer for passing information.
2991 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr,
2994 struct Scsi_Host *shost = class_to_shost(dev);
2995 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2997 return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
2998 wwn_to_u64(phba->cfg_oas_tgt_wwpn));
3002 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for
3003 * Optimized Access Storage (OAS) operations.
3004 * @dev: class device that is converted into a Scsi_host.
3005 * @attr: device attribute, not used.
3006 * @buf: buffer for passing information.
3007 * @count: Size of the data buffer.
3010 * -EINVAL count is invalid, invalid wwpn byte invalid
3011 * -EPERM oas is not supported by hba
3012 * value of count on success
3015 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr,
3016 const char *buf, size_t count)
3018 struct Scsi_Host *shost = class_to_shost(dev);
3019 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3020 unsigned int cnt = count;
3021 uint8_t wwpn[WWN_SZ];
3027 /* count may include a LF at end of string */
3028 if (buf[cnt-1] == '\n')
3031 rc = lpfc_wwn_set(buf, cnt, wwpn);
3035 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3036 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3037 if (wwn_to_u64(wwpn) == 0)
3038 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET;
3040 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET;
3041 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
3042 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
3045 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR,
3046 lpfc_oas_tgt_show, lpfc_oas_tgt_store);
3049 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for
3050 * Optimized Access Storage (OAS) operations.
3051 * @dev: class device that is converted into a Scsi_host.
3052 * @attr: device attribute, not used.
3053 * @buf: buffer for passing information.
3059 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr,
3062 struct Scsi_Host *shost = class_to_shost(dev);
3063 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3065 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority);
3069 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for
3070 * Optimized Access Storage (OAS) operations.
3071 * @dev: class device that is converted into a Scsi_host.
3072 * @attr: device attribute, not used.
3073 * @buf: buffer for passing information.
3074 * @count: Size of the data buffer.
3077 * -EINVAL count is invalid, invalid wwpn byte invalid
3078 * -EPERM oas is not supported by hba
3079 * value of count on success
3082 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr,
3083 const char *buf, size_t count)
3085 struct Scsi_Host *shost = class_to_shost(dev);
3086 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3087 unsigned int cnt = count;
3094 /* count may include a LF at end of string */
3095 if (buf[cnt-1] == '\n')
3098 ret = kstrtoul(buf, 0, &val);
3099 if (ret || (val > 0x7f))
3103 phba->cfg_oas_priority = (uint8_t)val;
3105 phba->cfg_oas_priority = phba->cfg_XLanePriority;
3108 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR,
3109 lpfc_oas_priority_show, lpfc_oas_priority_store);
3112 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled
3113 * for Optimized Access Storage (OAS) operations.
3114 * @dev: class device that is converted into a Scsi_host.
3115 * @attr: device attribute, not used.
3116 * @buf: buffer for passing information.
3119 * value of count on success
3122 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr,
3125 struct Scsi_Host *shost = class_to_shost(dev);
3126 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3128 return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
3129 wwn_to_u64(phba->cfg_oas_vpt_wwpn));
3133 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled
3134 * for Optimized Access Storage (OAS) operations.
3135 * @dev: class device that is converted into a Scsi_host.
3136 * @attr: device attribute, not used.
3137 * @buf: buffer for passing information.
3138 * @count: Size of the data buffer.
3141 * -EINVAL count is invalid, invalid wwpn byte invalid
3142 * -EPERM oas is not supported by hba
3143 * value of count on success
3146 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr,
3147 const char *buf, size_t count)
3149 struct Scsi_Host *shost = class_to_shost(dev);
3150 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3151 unsigned int cnt = count;
3152 uint8_t wwpn[WWN_SZ];
3158 /* count may include a LF at end of string */
3159 if (buf[cnt-1] == '\n')
3162 rc = lpfc_wwn_set(buf, cnt, wwpn);
3166 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3167 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3168 if (wwn_to_u64(wwpn) == 0)
3169 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT;
3171 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT;
3172 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
3173 if (phba->cfg_oas_priority == 0)
3174 phba->cfg_oas_priority = phba->cfg_XLanePriority;
3175 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
3178 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR,
3179 lpfc_oas_vpt_show, lpfc_oas_vpt_store);
3182 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled)
3183 * of whether luns will be enabled or disabled
3184 * for Optimized Access Storage (OAS) operations.
3185 * @dev: class device that is converted into a Scsi_host.
3186 * @attr: device attribute, not used.
3187 * @buf: buffer for passing information.
3190 * size of formatted string.
3193 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr,
3196 struct Scsi_Host *shost = class_to_shost(dev);
3197 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3199 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
3203 * lpfc_oas_lun_state_store - Store the state (enabled or disabled)
3204 * of whether luns will be enabled or disabled
3205 * for Optimized Access Storage (OAS) operations.
3206 * @dev: class device that is converted into a Scsi_host.
3207 * @attr: device attribute, not used.
3208 * @buf: buffer for passing information.
3209 * @count: Size of the data buffer.
3212 * -EINVAL count is invalid, invalid wwpn byte invalid
3213 * -EPERM oas is not supported by hba
3214 * value of count on success
3217 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr,
3218 const char *buf, size_t count)
3220 struct Scsi_Host *shost = class_to_shost(dev);
3221 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3227 if (!isdigit(buf[0]))
3230 if (sscanf(buf, "%i", &val) != 1)
3233 if ((val != 0) && (val != 1))
3236 phba->cfg_oas_lun_state = val;
3239 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR,
3240 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store);
3243 * lpfc_oas_lun_status_show - Return the status of the Optimized Access
3244 * Storage (OAS) lun returned by the
3245 * lpfc_oas_lun_show function.
3246 * @dev: class device that is converted into a Scsi_host.
3247 * @attr: device attribute, not used.
3248 * @buf: buffer for passing information.
3251 * size of formatted string.
3254 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr,
3257 struct Scsi_Host *shost = class_to_shost(dev);
3258 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3260 if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
3263 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
3265 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
3266 lpfc_oas_lun_status_show, NULL);
3270 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage
3272 * @phba: lpfc_hba pointer.
3273 * @ndlp: pointer to fcp target node.
3274 * @lun: the fc lun for setting oas state.
3275 * @oas_state: the oas state to be set to the lun.
3279 * -EPERM OAS is not enabled or not supported by this port.
3283 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
3284 uint8_t tgt_wwpn[], uint64_t lun,
3285 uint32_t oas_state, uint8_t pri)
3294 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
3295 (struct lpfc_name *)tgt_wwpn,
3299 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
3300 (struct lpfc_name *)tgt_wwpn, lun, pri);
3307 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized
3308 * Access Storage (OAS) operations.
3309 * @phba: lpfc_hba pointer.
3310 * @vpt_wwpn: wwpn of the vport associated with the returned lun
3311 * @tgt_wwpn: wwpn of the target associated with the returned lun
3312 * @lun_status: status of the lun returned lun
3314 * Returns the first or next lun enabled for OAS operations for the vport/target
3315 * specified. If a lun is found, its vport wwpn, target wwpn and status is
3316 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned.
3319 * lun that is OAS enabled for the vport/target
3320 * NOT_OAS_ENABLED_LUN when no oas enabled lun found.
3323 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
3324 uint8_t tgt_wwpn[], uint32_t *lun_status,
3329 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn)
3330 return NOT_OAS_ENABLED_LUN;
3331 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *)
3332 phba->sli4_hba.oas_next_vpt_wwpn,
3333 (struct lpfc_name *)
3334 phba->sli4_hba.oas_next_tgt_wwpn,
3335 &phba->sli4_hba.oas_next_lun,
3336 (struct lpfc_name *)vpt_wwpn,
3337 (struct lpfc_name *)tgt_wwpn,
3338 &found_lun, lun_status, lun_pri))
3341 return NOT_OAS_ENABLED_LUN;
3345 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations
3346 * @phba: lpfc_hba pointer.
3347 * @vpt_wwpn: vport wwpn by reference.
3348 * @tgt_wwpn: target wwpn by reference.
3349 * @lun: the fc lun for setting oas state.
3350 * @oas_state: the oas state to be set to the oas_lun.
3352 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE)
3353 * a lun for OAS operations.
3357 * -ENOMEM: failed to enable an lun for OAS operations
3358 * -EPERM: OAS is not enabled
3361 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
3362 uint8_t tgt_wwpn[], uint64_t lun,
3363 uint32_t oas_state, uint8_t pri)
3368 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun,
3374 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target
3375 * @dev: class device that is converted into a Scsi_host.
3376 * @attr: device attribute, not used.
3377 * @buf: buffer for passing information.
3379 * This routine returns a lun enabled for OAS each time the function
3383 * SUCCESS: size of formatted string.
3384 * -EFAULT: target or vport wwpn was not set properly.
3385 * -EPERM: oas is not enabled.
3388 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr,
3391 struct Scsi_Host *shost = class_to_shost(dev);
3392 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3400 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
3401 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT))
3404 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
3405 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET))
3408 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn,
3409 phba->cfg_oas_tgt_wwpn,
3410 &phba->cfg_oas_lun_status,
3411 &phba->cfg_oas_priority);
3412 if (oas_lun != NOT_OAS_ENABLED_LUN)
3413 phba->cfg_oas_flags |= OAS_LUN_VALID;
3415 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
3421 * lpfc_oas_lun_store - Sets the OAS state for lun
3422 * @dev: class device that is converted into a Scsi_host.
3423 * @attr: device attribute, not used.
3424 * @buf: buffer for passing information.
3426 * This function sets the OAS state for lun. Before this function is called,
3427 * the vport wwpn, target wwpn, and oas state need to be set.
3430 * SUCCESS: size of formatted string.
3431 * -EFAULT: target or vport wwpn was not set properly.
3432 * -EPERM: oas is not enabled.
3433 * size of formatted string.
3436 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr,
3437 const char *buf, size_t count)
3439 struct Scsi_Host *shost = class_to_shost(dev);
3440 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3448 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
3451 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
3454 if (!isdigit(buf[0]))
3457 if (sscanf(buf, "0x%llx", &scsi_lun) != 1)
3460 pri = phba->cfg_oas_priority;
3462 pri = phba->cfg_XLanePriority;
3464 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3465 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx "
3466 "priority 0x%x with oas state %d\n",
3467 wwn_to_u64(phba->cfg_oas_vpt_wwpn),
3468 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun,
3469 pri, phba->cfg_oas_lun_state);
3471 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn,
3472 phba->cfg_oas_tgt_wwpn, scsi_lun,
3473 phba->cfg_oas_lun_state, pri);
3479 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR,
3480 lpfc_oas_lun_show, lpfc_oas_lun_store);
3482 int lpfc_enable_nvmet_cnt;
3483 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = {
3484 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
3485 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
3486 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444);
3487 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target");
3489 static int lpfc_poll = 0;
3490 module_param(lpfc_poll, int, S_IRUGO);
3491 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
3493 " 1 - poll with interrupts enabled"
3494 " 3 - poll and disable FCP ring interrupts");
3496 static DEVICE_ATTR_RW(lpfc_poll);
3498 int lpfc_no_hba_reset_cnt;
3499 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = {
3500 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
3501 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444);
3502 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset");
3504 LPFC_ATTR(sli_mode, 0, 0, 3,
3505 "SLI mode selector:"
3506 " 0 - auto (SLI-3 if supported),"
3507 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
3508 " 3 - select SLI-3");
3510 LPFC_ATTR_R(enable_npiv, 1, 0, 1,
3511 "Enable NPIV functionality");
3513 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
3514 "FCF Fast failover=1 Priority failover=2");
3517 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures
3518 # 0x0 = disabled, XRI/OXID use not tracked.
3519 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent.
3520 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent.
3522 LPFC_ATTR_R(enable_rrq, 2, 0, 2,
3523 "Enable RRQ functionality");
3526 # lpfc_suppress_link_up: Bring link up at initialization
3527 # 0x0 = bring link up (issue MBX_INIT_LINK)
3528 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
3529 # 0x2 = never bring up link
3530 # Default value is 0.
3532 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
3533 LPFC_DELAY_INIT_LINK_INDEFINITELY,
3534 "Suppress Link Up at initialization");
3536 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
3544 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
3546 struct Scsi_Host *shost = class_to_shost(dev);
3547 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
3549 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
3552 static DEVICE_ATTR(iocb_hw, S_IRUGO,
3553 lpfc_iocb_hw_show, NULL);
3555 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
3557 struct Scsi_Host *shost = class_to_shost(dev);
3558 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
3559 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba);
3561 return scnprintf(buf, PAGE_SIZE, "%d\n",
3562 pring ? pring->txq_max : 0);
3565 static DEVICE_ATTR(txq_hw, S_IRUGO,
3566 lpfc_txq_hw_show, NULL);
3568 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
3571 struct Scsi_Host *shost = class_to_shost(dev);
3572 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
3573 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba);
3575 return scnprintf(buf, PAGE_SIZE, "%d\n",
3576 pring ? pring->txcmplq_max : 0);
3579 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
3580 lpfc_txcmplq_hw_show, NULL);
3582 LPFC_ATTR_R(iocb_cnt, 2, 1, 5,
3583 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
3586 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
3587 # until the timer expires. Value range is [0,255]. Default value is 30.
3589 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
3590 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
3591 module_param(lpfc_nodev_tmo, int, 0);
3592 MODULE_PARM_DESC(lpfc_nodev_tmo,
3593 "Seconds driver will hold I/O waiting "
3594 "for a device to come back");
3597 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
3598 * @dev: class converted to a Scsi_host structure.
3599 * @attr: device attribute, not used.
3600 * @buf: on return contains the dev loss timeout in decimal.
3602 * Returns: size of formatted string.
3605 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
3608 struct Scsi_Host *shost = class_to_shost(dev);
3609 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3611 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
3615 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
3616 * @vport: lpfc vport structure pointer.
3617 * @val: contains the nodev timeout value.
3620 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
3621 * a kernel error message is printed and zero is returned.
3622 * Else if val is in range then nodev tmo and devloss tmo are set to val.
3623 * Otherwise nodev tmo is set to the default value.
3626 * zero if already set or if val is in range
3627 * -EINVAL val out of range
3630 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
3632 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
3633 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
3634 if (val != LPFC_DEF_DEVLOSS_TMO)
3635 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3636 "0407 Ignoring lpfc_nodev_tmo module "
3637 "parameter because lpfc_devloss_tmo "
3642 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3643 vport->cfg_nodev_tmo = val;
3644 vport->cfg_devloss_tmo = val;
3647 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3648 "0400 lpfc_nodev_tmo attribute cannot be set to"
3649 " %d, allowed range is [%d, %d]\n",
3650 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3651 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
3656 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
3657 * @vport: lpfc vport structure pointer.
3660 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
3663 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
3665 struct Scsi_Host *shost;
3666 struct lpfc_nodelist *ndlp;
3667 #if (IS_ENABLED(CONFIG_NVME_FC))
3668 struct lpfc_nvme_rport *rport;
3669 struct nvme_fc_remote_port *remoteport = NULL;
3672 shost = lpfc_shost_from_vport(vport);
3673 spin_lock_irq(shost->host_lock);
3674 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3675 if (!NLP_CHK_NODE_ACT(ndlp))
3678 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
3679 #if (IS_ENABLED(CONFIG_NVME_FC))
3680 spin_lock(&vport->phba->hbalock);
3681 rport = lpfc_ndlp_get_nrport(ndlp);
3683 remoteport = rport->remoteport;
3684 spin_unlock(&vport->phba->hbalock);
3686 nvme_fc_set_remoteport_devloss(rport->remoteport,
3687 vport->cfg_devloss_tmo);
3690 spin_unlock_irq(shost->host_lock);
3694 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
3695 * @vport: lpfc vport structure pointer.
3696 * @val: contains the tmo value.
3699 * If the devloss tmo is already set or the vport dev loss tmo has changed
3700 * then a kernel error message is printed and zero is returned.
3701 * Else if val is in range then nodev tmo and devloss tmo are set to val.
3702 * Otherwise nodev tmo is set to the default value.
3705 * zero if already set or if val is in range
3706 * -EINVAL val out of range
3709 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
3711 if (vport->dev_loss_tmo_changed ||
3712 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
3713 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3714 "0401 Ignoring change to lpfc_nodev_tmo "
3715 "because lpfc_devloss_tmo is set.\n");
3718 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3719 vport->cfg_nodev_tmo = val;
3720 vport->cfg_devloss_tmo = val;
3722 * For compat: set the fc_host dev loss so new rports
3723 * will get the value.
3725 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3726 lpfc_update_rport_devloss_tmo(vport);
3729 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3730 "0403 lpfc_nodev_tmo attribute cannot be set to "
3731 "%d, allowed range is [%d, %d]\n",
3732 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3736 lpfc_vport_param_store(nodev_tmo)
3738 static DEVICE_ATTR_RW(lpfc_nodev_tmo);
3741 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
3742 # disappear until the timer expires. Value range is [0,255]. Default
3745 module_param(lpfc_devloss_tmo, int, S_IRUGO);
3746 MODULE_PARM_DESC(lpfc_devloss_tmo,
3747 "Seconds driver will hold I/O waiting "
3748 "for a device to come back");
3749 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
3750 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
3751 lpfc_vport_param_show(devloss_tmo)
3754 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
3755 * @vport: lpfc vport structure pointer.
3756 * @val: contains the tmo value.
3759 * If val is in a valid range then set the vport nodev tmo,
3760 * devloss tmo, also set the vport dev loss tmo changed flag.
3761 * Else a kernel error message is printed.
3764 * zero if val is in range
3765 * -EINVAL val out of range
3768 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
3770 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3771 vport->cfg_nodev_tmo = val;
3772 vport->cfg_devloss_tmo = val;
3773 vport->dev_loss_tmo_changed = 1;
3774 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3775 lpfc_update_rport_devloss_tmo(vport);
3779 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3780 "0404 lpfc_devloss_tmo attribute cannot be set to "
3781 "%d, allowed range is [%d, %d]\n",
3782 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3786 lpfc_vport_param_store(devloss_tmo)
3787 static DEVICE_ATTR_RW(lpfc_devloss_tmo);
3790 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it
3791 * lpfc_suppress_rsp = 0 Disable
3792 * lpfc_suppress_rsp = 1 Enable (default)
3795 LPFC_ATTR_R(suppress_rsp, 1, 0, 1,
3796 "Enable suppress rsp feature is firmware supports it");
3799 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds
3800 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs
3801 * lpfc_nvmet_mrq = 1 use a single RQ pair
3802 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ
3805 LPFC_ATTR_R(nvmet_mrq,
3806 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX,
3807 "Specify number of RQ pairs for processing NVMET cmds");
3810 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post
3811 * to each NVMET RQ. Range 64 to 2048, default is 512.
3813 LPFC_ATTR_R(nvmet_mrq_post,
3814 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST,
3815 LPFC_NVMET_RQE_DEF_COUNT,
3816 "Specify number of RQ buffers to initially post");
3819 * lpfc_enable_fc4_type: Defines what FC4 types are supported.
3820 * Supported Values: 1 - register just FCP
3821 * 3 - register both FCP and NVME
3822 * Supported values are [1,3]. Default value is 3
3824 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH,
3825 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH,
3826 "Enable FC4 Protocol support - FCP / NVME");
3829 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
3830 # deluged with LOTS of information.
3831 # You can set a bit mask to record specific types of verbose messages:
3832 # See lpfc_logmsh.h for definitions.
3834 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
3835 "Verbose logging bit-mask");
3838 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
3839 # objects that have been registered with the nameserver after login.
3841 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
3842 "Deregister nameserver objects before LOGO");
3845 # lun_queue_depth: This parameter is used to limit the number of outstanding
3846 # commands per FCP LUN. Value range is [1,512]. Default value is 30.
3847 # If this parameter value is greater than 1/8th the maximum number of exchanges
3848 # supported by the HBA port, then the lun queue depth will be reduced to
3849 # 1/8th the maximum number of exchanges.
3851 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512,
3852 "Max number of FCP commands we can queue to a specific LUN");
3855 # tgt_queue_depth: This parameter is used to limit the number of outstanding
3856 # commands per target port. Value range is [10,65535]. Default value is 65535.
3858 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH;
3859 module_param(lpfc_tgt_queue_depth, uint, 0444);
3860 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth");
3861 lpfc_vport_param_show(tgt_queue_depth);
3862 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH,
3863 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH);
3866 * lpfc_tgt_queue_depth_store: Sets an attribute value.
3867 * @phba: pointer the the adapter structure.
3868 * @val: integer attribute value.
3870 * Description: Sets the parameter to the new value.
3874 * -EINVAL if val is invalid
3877 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val)
3879 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3880 struct lpfc_nodelist *ndlp;
3882 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH))
3885 if (val == vport->cfg_tgt_queue_depth)
3888 spin_lock_irq(shost->host_lock);
3889 vport->cfg_tgt_queue_depth = val;
3891 /* Next loop thru nodelist and change cmd_qdepth */
3892 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
3893 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
3895 spin_unlock_irq(shost->host_lock);
3899 lpfc_vport_param_store(tgt_queue_depth);
3900 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth);
3903 # hba_queue_depth: This parameter is used to limit the number of outstanding
3904 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
3905 # value is greater than the maximum number of exchanges supported by the HBA,
3906 # then maximum number of exchanges supported by the HBA is used to determine
3907 # the hba_queue_depth.
3909 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
3910 "Max number of FCP commands we can queue to a lpfc HBA");
3913 # peer_port_login: This parameter allows/prevents logins
3914 # between peer ports hosted on the same physical port.
3915 # When this parameter is set 0 peer ports of same physical port
3916 # are not allowed to login to each other.
3917 # When this parameter is set 1 peer ports of same physical port
3918 # are allowed to login to each other.
3919 # Default value of this parameter is 0.
3921 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
3922 "Allow peer ports on the same physical port to login to each "
3926 # restrict_login: This parameter allows/prevents logins
3927 # between Virtual Ports and remote initiators.
3928 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
3929 # other initiators and will attempt to PLOGI all remote ports.
3930 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
3931 # remote ports and will not attempt to PLOGI to other initiators.
3932 # This parameter does not restrict to the physical port.
3933 # This parameter does not restrict logins to Fabric resident remote ports.
3934 # Default value of this parameter is 1.
3936 static int lpfc_restrict_login = 1;
3937 module_param(lpfc_restrict_login, int, S_IRUGO);
3938 MODULE_PARM_DESC(lpfc_restrict_login,
3939 "Restrict virtual ports login to remote initiators.");
3940 lpfc_vport_param_show(restrict_login);
3943 * lpfc_restrict_login_init - Set the vport restrict login flag
3944 * @vport: lpfc vport structure pointer.
3945 * @val: contains the restrict login value.
3948 * If val is not in a valid range then log a kernel error message and set
3949 * the vport restrict login to one.
3950 * If the port type is physical clear the restrict login flag and return.
3951 * Else set the restrict login flag to val.
3954 * zero if val is in range
3955 * -EINVAL val out of range
3958 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
3960 if (val < 0 || val > 1) {
3961 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3962 "0422 lpfc_restrict_login attribute cannot "
3963 "be set to %d, allowed range is [0, 1]\n",
3965 vport->cfg_restrict_login = 1;
3968 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3969 vport->cfg_restrict_login = 0;
3972 vport->cfg_restrict_login = val;
3977 * lpfc_restrict_login_set - Set the vport restrict login flag
3978 * @vport: lpfc vport structure pointer.
3979 * @val: contains the restrict login value.
3982 * If val is not in a valid range then log a kernel error message and set
3983 * the vport restrict login to one.
3984 * If the port type is physical and the val is not zero log a kernel
3985 * error message, clear the restrict login flag and return zero.
3986 * Else set the restrict login flag to val.
3989 * zero if val is in range
3990 * -EINVAL val out of range
3993 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
3995 if (val < 0 || val > 1) {
3996 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3997 "0425 lpfc_restrict_login attribute cannot "
3998 "be set to %d, allowed range is [0, 1]\n",
4000 vport->cfg_restrict_login = 1;
4003 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
4004 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4005 "0468 lpfc_restrict_login must be 0 for "
4006 "Physical ports.\n");
4007 vport->cfg_restrict_login = 0;
4010 vport->cfg_restrict_login = val;
4013 lpfc_vport_param_store(restrict_login);
4014 static DEVICE_ATTR_RW(lpfc_restrict_login);
4017 # Some disk devices have a "select ID" or "select Target" capability.
4018 # From a protocol standpoint "select ID" usually means select the
4019 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
4020 # annex" which contains a table that maps a "select ID" (a number
4021 # between 0 and 7F) to an ALPA. By default, for compatibility with
4022 # older drivers, the lpfc driver scans this table from low ALPA to high
4025 # Turning on the scan-down variable (on = 1, off = 0) will
4026 # cause the lpfc driver to use an inverted table, effectively
4027 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
4029 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
4030 # and will not work across a fabric. Also this parameter will take
4031 # effect only in the case when ALPA map is not available.)
4033 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
4034 "Start scanning for devices from highest ALPA to lowest");
4037 # lpfc_topology: link topology for init link
4038 # 0x0 = attempt loop mode then point-to-point
4039 # 0x01 = internal loopback mode
4040 # 0x02 = attempt point-to-point mode only
4041 # 0x04 = attempt loop mode only
4042 # 0x06 = attempt point-to-point mode then loop
4043 # Set point-to-point mode if you want to run as an N_Port.
4044 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
4045 # Default value is 0.
4047 LPFC_ATTR(topology, 0, 0, 6,
4048 "Select Fibre Channel topology");
4051 * lpfc_topology_set - Set the adapters topology field
4052 * @phba: lpfc_hba pointer.
4053 * @val: topology value.
4056 * If val is in a valid range then set the adapter's topology field and
4057 * issue a lip; if the lip fails reset the topology to the old value.
4059 * If the value is not in range log a kernel error message and return an error.
4062 * zero if val is in range and lip okay
4063 * non-zero return value from lpfc_issue_lip()
4064 * -EINVAL val out of range
4067 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
4068 const char *buf, size_t count)
4070 struct Scsi_Host *shost = class_to_shost(dev);
4071 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4072 struct lpfc_hba *phba = vport->phba;
4075 const char *val_buf = buf;
4079 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
4081 val_buf = &buf[strlen("nolip ")];
4084 if (!isdigit(val_buf[0]))
4086 if (sscanf(val_buf, "%i", &val) != 1)
4089 if (val >= 0 && val <= 6) {
4090 prev_val = phba->cfg_topology;
4091 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
4093 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4094 "3113 Loop mode not supported at speed %d\n",
4098 if ((phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC ||
4099 phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC) &&
4101 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4102 "3114 Loop mode not supported\n");
4105 phba->cfg_topology = val;
4109 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4110 "3054 lpfc_topology changed from %d to %d\n",
4112 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4)
4113 phba->fc_topology_changed = 1;
4114 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
4116 phba->cfg_topology = prev_val;
4121 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4122 "%d:0467 lpfc_topology attribute cannot be set to %d, "
4123 "allowed range is [0, 6]\n",
4128 lpfc_param_show(topology)
4129 static DEVICE_ATTR_RW(lpfc_topology);
4132 * lpfc_static_vport_show: Read callback function for
4133 * lpfc_static_vport sysfs file.
4134 * @dev: Pointer to class device object.
4135 * @attr: device attribute structure.
4136 * @buf: Data buffer.
4138 * This function is the read call back function for
4139 * lpfc_static_vport sysfs file. The lpfc_static_vport
4140 * sysfs file report the mageability of the vport.
4143 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
4146 struct Scsi_Host *shost = class_to_shost(dev);
4147 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4148 if (vport->vport_flag & STATIC_VPORT)
4149 sprintf(buf, "1\n");
4151 sprintf(buf, "0\n");
4157 * Sysfs attribute to control the statistical data collection.
4159 static DEVICE_ATTR_RO(lpfc_static_vport);
4162 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
4163 * @dev: Pointer to class device.
4164 * @buf: Data buffer.
4165 * @count: Size of the data buffer.
4167 * This function get called when a user write to the lpfc_stat_data_ctrl
4168 * sysfs file. This function parse the command written to the sysfs file
4169 * and take appropriate action. These commands are used for controlling
4170 * driver statistical data collection.
4171 * Following are the command this function handles.
4173 * setbucket <bucket_type> <base> <step>
4174 * = Set the latency buckets.
4175 * destroybucket = destroy all the buckets.
4176 * start = start data collection
4177 * stop = stop data collection
4178 * reset = reset the collected data
4181 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
4182 const char *buf, size_t count)
4184 struct Scsi_Host *shost = class_to_shost(dev);
4185 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4186 struct lpfc_hba *phba = vport->phba;
4187 #define LPFC_MAX_DATA_CTRL_LEN 1024
4188 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
4190 char *str_ptr, *token;
4191 struct lpfc_vport **vports;
4192 struct Scsi_Host *v_shost;
4193 char *bucket_type_str, *base_str, *step_str;
4194 unsigned long base, step, bucket_type;
4196 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
4197 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
4200 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN);
4201 str_ptr = &bucket_data[0];
4202 /* Ignore this token - this is command token */
4203 token = strsep(&str_ptr, "\t ");
4207 bucket_type_str = strsep(&str_ptr, "\t ");
4208 if (!bucket_type_str)
4211 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
4212 bucket_type = LPFC_LINEAR_BUCKET;
4213 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
4214 bucket_type = LPFC_POWER2_BUCKET;
4218 base_str = strsep(&str_ptr, "\t ");
4221 base = simple_strtoul(base_str, NULL, 0);
4223 step_str = strsep(&str_ptr, "\t ");
4226 step = simple_strtoul(step_str, NULL, 0);
4230 /* Block the data collection for every vport */
4231 vports = lpfc_create_vport_work_array(phba);
4235 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4236 v_shost = lpfc_shost_from_vport(vports[i]);
4237 spin_lock_irq(v_shost->host_lock);
4238 /* Block and reset data collection */
4239 vports[i]->stat_data_blocked = 1;
4240 if (vports[i]->stat_data_enabled)
4241 lpfc_vport_reset_stat_data(vports[i]);
4242 spin_unlock_irq(v_shost->host_lock);
4245 /* Set the bucket attributes */
4246 phba->bucket_type = bucket_type;
4247 phba->bucket_base = base;
4248 phba->bucket_step = step;
4250 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4251 v_shost = lpfc_shost_from_vport(vports[i]);
4253 /* Unblock data collection */
4254 spin_lock_irq(v_shost->host_lock);
4255 vports[i]->stat_data_blocked = 0;
4256 spin_unlock_irq(v_shost->host_lock);
4258 lpfc_destroy_vport_work_array(phba, vports);
4262 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
4263 vports = lpfc_create_vport_work_array(phba);
4267 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4268 v_shost = lpfc_shost_from_vport(vports[i]);
4269 spin_lock_irq(shost->host_lock);
4270 vports[i]->stat_data_blocked = 1;
4271 lpfc_free_bucket(vport);
4272 vport->stat_data_enabled = 0;
4273 vports[i]->stat_data_blocked = 0;
4274 spin_unlock_irq(shost->host_lock);
4276 lpfc_destroy_vport_work_array(phba, vports);
4277 phba->bucket_type = LPFC_NO_BUCKET;
4278 phba->bucket_base = 0;
4279 phba->bucket_step = 0;
4283 if (!strncmp(buf, "start", strlen("start"))) {
4284 /* If no buckets configured return error */
4285 if (phba->bucket_type == LPFC_NO_BUCKET)
4287 spin_lock_irq(shost->host_lock);
4288 if (vport->stat_data_enabled) {
4289 spin_unlock_irq(shost->host_lock);
4292 lpfc_alloc_bucket(vport);
4293 vport->stat_data_enabled = 1;
4294 spin_unlock_irq(shost->host_lock);
4298 if (!strncmp(buf, "stop", strlen("stop"))) {
4299 spin_lock_irq(shost->host_lock);
4300 if (vport->stat_data_enabled == 0) {
4301 spin_unlock_irq(shost->host_lock);
4304 lpfc_free_bucket(vport);
4305 vport->stat_data_enabled = 0;
4306 spin_unlock_irq(shost->host_lock);
4310 if (!strncmp(buf, "reset", strlen("reset"))) {
4311 if ((phba->bucket_type == LPFC_NO_BUCKET)
4312 || !vport->stat_data_enabled)
4314 spin_lock_irq(shost->host_lock);
4315 vport->stat_data_blocked = 1;
4316 lpfc_vport_reset_stat_data(vport);
4317 vport->stat_data_blocked = 0;
4318 spin_unlock_irq(shost->host_lock);
4326 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
4327 * @dev: Pointer to class device object.
4328 * @buf: Data buffer.
4330 * This function is the read call back function for
4331 * lpfc_stat_data_ctrl sysfs file. This function report the
4332 * current statistical data collection state.
4335 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
4338 struct Scsi_Host *shost = class_to_shost(dev);
4339 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4340 struct lpfc_hba *phba = vport->phba;
4344 unsigned long bucket_value;
4346 switch (phba->bucket_type) {
4347 case LPFC_LINEAR_BUCKET:
4348 bucket_type = "linear";
4350 case LPFC_POWER2_BUCKET:
4351 bucket_type = "power2";
4354 bucket_type = "No Bucket";
4358 sprintf(&buf[index], "Statistical Data enabled :%d, "
4359 "blocked :%d, Bucket type :%s, Bucket base :%d,"
4360 " Bucket step :%d\nLatency Ranges :",
4361 vport->stat_data_enabled, vport->stat_data_blocked,
4362 bucket_type, phba->bucket_base, phba->bucket_step);
4363 index = strlen(buf);
4364 if (phba->bucket_type != LPFC_NO_BUCKET) {
4365 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
4366 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
4367 bucket_value = phba->bucket_base +
4368 phba->bucket_step * i;
4370 bucket_value = phba->bucket_base +
4371 (1 << i) * phba->bucket_step;
4373 if (index + 10 > PAGE_SIZE)
4375 sprintf(&buf[index], "%08ld ", bucket_value);
4376 index = strlen(buf);
4379 sprintf(&buf[index], "\n");
4384 * Sysfs attribute to control the statistical data collection.
4386 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl);
4389 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
4393 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
4396 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
4397 #define MAX_STAT_DATA_SIZE_PER_TARGET \
4398 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
4402 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
4404 * @kobj: Pointer to the kernel object
4405 * @bin_attr: Attribute object
4406 * @buff: Buffer pointer
4408 * @count: Buffer size
4410 * This function is the read call back function for lpfc_drvr_stat_data
4411 * sysfs file. This function export the statistical data to user
4415 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
4416 struct bin_attribute *bin_attr,
4417 char *buf, loff_t off, size_t count)
4419 struct device *dev = container_of(kobj, struct device,
4421 struct Scsi_Host *shost = class_to_shost(dev);
4422 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4423 struct lpfc_hba *phba = vport->phba;
4424 int i = 0, index = 0;
4425 unsigned long nport_index;
4426 struct lpfc_nodelist *ndlp = NULL;
4427 nport_index = (unsigned long)off /
4428 MAX_STAT_DATA_SIZE_PER_TARGET;
4430 if (!vport->stat_data_enabled || vport->stat_data_blocked
4431 || (phba->bucket_type == LPFC_NO_BUCKET))
4434 spin_lock_irq(shost->host_lock);
4435 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4436 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
4439 if (nport_index > 0) {
4444 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
4448 if (!ndlp->lat_data)
4452 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
4453 ndlp->nlp_portname.u.wwn[0],
4454 ndlp->nlp_portname.u.wwn[1],
4455 ndlp->nlp_portname.u.wwn[2],
4456 ndlp->nlp_portname.u.wwn[3],
4457 ndlp->nlp_portname.u.wwn[4],
4458 ndlp->nlp_portname.u.wwn[5],
4459 ndlp->nlp_portname.u.wwn[6],
4460 ndlp->nlp_portname.u.wwn[7]);
4462 index = strlen(buf);
4464 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
4465 sprintf(&buf[index], "%010u,",
4466 ndlp->lat_data[i].cmd_count);
4467 index = strlen(buf);
4469 sprintf(&buf[index], "\n");
4470 index = strlen(buf);
4472 spin_unlock_irq(shost->host_lock);
4476 static struct bin_attribute sysfs_drvr_stat_data_attr = {
4478 .name = "lpfc_drvr_stat_data",
4481 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
4482 .read = sysfs_drvr_stat_data_read,
4487 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
4489 # Value range is [0,16]. Default value is 0.
4492 * lpfc_link_speed_set - Set the adapters link speed
4493 * @phba: lpfc_hba pointer.
4494 * @val: link speed value.
4497 * If val is in a valid range then set the adapter's link speed field and
4498 * issue a lip; if the lip fails reset the link speed to the old value.
4501 * If the value is not in range log a kernel error message and return an error.
4504 * zero if val is in range and lip okay.
4505 * non-zero return value from lpfc_issue_lip()
4506 * -EINVAL val out of range
4509 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
4510 const char *buf, size_t count)
4512 struct Scsi_Host *shost = class_to_shost(dev);
4513 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4514 struct lpfc_hba *phba = vport->phba;
4515 int val = LPFC_USER_LINK_SPEED_AUTO;
4517 const char *val_buf = buf;
4519 uint32_t prev_val, if_type;
4521 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
4522 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 &&
4523 phba->hba_flag & HBA_FORCED_LINK_SPEED)
4526 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
4528 val_buf = &buf[strlen("nolip ")];
4531 if (!isdigit(val_buf[0]))
4533 if (sscanf(val_buf, "%i", &val) != 1)
4536 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4537 "3055 lpfc_link_speed changed from %d to %d %s\n",
4538 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
4540 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
4541 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
4542 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
4543 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
4544 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
4545 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) ||
4546 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) ||
4547 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) {
4548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4549 "2879 lpfc_link_speed attribute cannot be set "
4550 "to %d. Speed is not supported by this port.\n",
4554 if (val >= LPFC_USER_LINK_SPEED_16G &&
4555 phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4557 "3112 lpfc_link_speed attribute cannot be set "
4558 "to %d. Speed is not supported in loop mode.\n",
4564 case LPFC_USER_LINK_SPEED_AUTO:
4565 case LPFC_USER_LINK_SPEED_1G:
4566 case LPFC_USER_LINK_SPEED_2G:
4567 case LPFC_USER_LINK_SPEED_4G:
4568 case LPFC_USER_LINK_SPEED_8G:
4569 case LPFC_USER_LINK_SPEED_16G:
4570 case LPFC_USER_LINK_SPEED_32G:
4571 case LPFC_USER_LINK_SPEED_64G:
4572 prev_val = phba->cfg_link_speed;
4573 phba->cfg_link_speed = val;
4577 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
4579 phba->cfg_link_speed = prev_val;
4587 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4588 "0469 lpfc_link_speed attribute cannot be set to %d, "
4589 "allowed values are [%s]\n",
4590 val, LPFC_LINK_SPEED_STRING);
4595 static int lpfc_link_speed = 0;
4596 module_param(lpfc_link_speed, int, S_IRUGO);
4597 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
4598 lpfc_param_show(link_speed)
4601 * lpfc_link_speed_init - Set the adapters link speed
4602 * @phba: lpfc_hba pointer.
4603 * @val: link speed value.
4606 * If val is in a valid range then set the adapter's link speed field.
4609 * If the value is not in range log a kernel error message, clear the link
4610 * speed and return an error.
4613 * zero if val saved.
4614 * -EINVAL val out of range
4617 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
4619 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
4620 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4621 "3111 lpfc_link_speed of %d cannot "
4622 "support loop mode, setting topology to default.\n",
4624 phba->cfg_topology = 0;
4628 case LPFC_USER_LINK_SPEED_AUTO:
4629 case LPFC_USER_LINK_SPEED_1G:
4630 case LPFC_USER_LINK_SPEED_2G:
4631 case LPFC_USER_LINK_SPEED_4G:
4632 case LPFC_USER_LINK_SPEED_8G:
4633 case LPFC_USER_LINK_SPEED_16G:
4634 case LPFC_USER_LINK_SPEED_32G:
4635 case LPFC_USER_LINK_SPEED_64G:
4636 phba->cfg_link_speed = val;
4639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4640 "0405 lpfc_link_speed attribute cannot "
4641 "be set to %d, allowed values are "
4642 "["LPFC_LINK_SPEED_STRING"]\n", val);
4643 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
4648 static DEVICE_ATTR_RW(lpfc_link_speed);
4651 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
4652 # 0 = aer disabled or not supported
4653 # 1 = aer supported and enabled (default)
4654 # Value range is [0,1]. Default value is 1.
4656 LPFC_ATTR(aer_support, 1, 0, 1,
4657 "Enable PCIe device AER support");
4658 lpfc_param_show(aer_support)
4661 * lpfc_aer_support_store - Set the adapter for aer support
4663 * @dev: class device that is converted into a Scsi_host.
4664 * @attr: device attribute, not used.
4665 * @buf: containing enable or disable aer flag.
4666 * @count: unused variable.
4669 * If the val is 1 and currently the device's AER capability was not
4670 * enabled, invoke the kernel's enable AER helper routine, trying to
4671 * enable the device's AER capability. If the helper routine enabling
4672 * AER returns success, update the device's cfg_aer_support flag to
4673 * indicate AER is supported by the device; otherwise, if the device
4674 * AER capability is already enabled to support AER, then do nothing.
4676 * If the val is 0 and currently the device's AER support was enabled,
4677 * invoke the kernel's disable AER helper routine. After that, update
4678 * the device's cfg_aer_support flag to indicate AER is not supported
4679 * by the device; otherwise, if the device AER capability is already
4680 * disabled from supporting AER, then do nothing.
4683 * length of the buf on success if val is in range the intended mode
4685 * -EINVAL if val out of range or intended mode is not supported.
4688 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
4689 const char *buf, size_t count)
4691 struct Scsi_Host *shost = class_to_shost(dev);
4692 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4693 struct lpfc_hba *phba = vport->phba;
4694 int val = 0, rc = -EINVAL;
4696 if (!isdigit(buf[0]))
4698 if (sscanf(buf, "%i", &val) != 1)
4703 if (phba->hba_flag & HBA_AER_ENABLED) {
4704 rc = pci_disable_pcie_error_reporting(phba->pcidev);
4706 spin_lock_irq(&phba->hbalock);
4707 phba->hba_flag &= ~HBA_AER_ENABLED;
4708 spin_unlock_irq(&phba->hbalock);
4709 phba->cfg_aer_support = 0;
4714 phba->cfg_aer_support = 0;
4719 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
4720 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4722 spin_lock_irq(&phba->hbalock);
4723 phba->hba_flag |= HBA_AER_ENABLED;
4724 spin_unlock_irq(&phba->hbalock);
4725 phba->cfg_aer_support = 1;
4730 phba->cfg_aer_support = 1;
4741 static DEVICE_ATTR_RW(lpfc_aer_support);
4744 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
4745 * @dev: class device that is converted into a Scsi_host.
4746 * @attr: device attribute, not used.
4747 * @buf: containing flag 1 for aer cleanup state.
4748 * @count: unused variable.
4751 * If the @buf contains 1 and the device currently has the AER support
4752 * enabled, then invokes the kernel AER helper routine
4753 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
4754 * error status register.
4759 * -EINVAL if the buf does not contain the 1 or the device is not currently
4760 * enabled with the AER support.
4763 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
4764 const char *buf, size_t count)
4766 struct Scsi_Host *shost = class_to_shost(dev);
4767 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4768 struct lpfc_hba *phba = vport->phba;
4771 if (!isdigit(buf[0]))
4773 if (sscanf(buf, "%i", &val) != 1)
4778 if (phba->hba_flag & HBA_AER_ENABLED)
4779 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
4787 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
4788 lpfc_aer_cleanup_state);
4791 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
4793 * @dev: class device that is converted into a Scsi_host.
4794 * @attr: device attribute, not used.
4795 * @buf: containing the string the number of vfs to be enabled.
4796 * @count: unused variable.
4799 * When this api is called either through user sysfs, the driver shall
4800 * try to enable or disable SR-IOV virtual functions according to the
4803 * If zero virtual function has been enabled to the physical function,
4804 * the driver shall invoke the pci enable virtual function api trying
4805 * to enable the virtual functions. If the nr_vfn provided is greater
4806 * than the maximum supported, the maximum virtual function number will
4807 * be used for invoking the api; otherwise, the nr_vfn provided shall
4808 * be used for invoking the api. If the api call returned success, the
4809 * actual number of virtual functions enabled will be set to the driver
4810 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
4811 * cfg_sriov_nr_virtfn remains zero.
4813 * If none-zero virtual functions have already been enabled to the
4814 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
4815 * -EINVAL will be returned and the driver does nothing;
4817 * If the nr_vfn provided is zero and none-zero virtual functions have
4818 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
4819 * disabling virtual function api shall be invoded to disable all the
4820 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
4821 * zero. Otherwise, if zero virtual function has been enabled, do
4825 * length of the buf on success if val is in range the intended mode
4827 * -EINVAL if val out of range or intended mode is not supported.
4830 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
4831 const char *buf, size_t count)
4833 struct Scsi_Host *shost = class_to_shost(dev);
4834 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4835 struct lpfc_hba *phba = vport->phba;
4836 struct pci_dev *pdev = phba->pcidev;
4837 int val = 0, rc = -EINVAL;
4839 /* Sanity check on user data */
4840 if (!isdigit(buf[0]))
4842 if (sscanf(buf, "%i", &val) != 1)
4847 /* Request disabling virtual functions */
4849 if (phba->cfg_sriov_nr_virtfn > 0) {
4850 pci_disable_sriov(pdev);
4851 phba->cfg_sriov_nr_virtfn = 0;
4856 /* Request enabling virtual functions */
4857 if (phba->cfg_sriov_nr_virtfn > 0) {
4858 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4859 "3018 There are %d virtual functions "
4860 "enabled on physical function.\n",
4861 phba->cfg_sriov_nr_virtfn);
4865 if (val <= LPFC_MAX_VFN_PER_PFN)
4866 phba->cfg_sriov_nr_virtfn = val;
4868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4869 "3019 Enabling %d virtual functions is not "
4874 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
4876 phba->cfg_sriov_nr_virtfn = 0;
4884 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN,
4885 "Enable PCIe device SR-IOV virtual fn");
4887 lpfc_param_show(sriov_nr_virtfn)
4888 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn);
4891 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade
4893 * @dev: class device that is converted into a Scsi_host.
4894 * @attr: device attribute, not used.
4895 * @buf: containing the string the number of vfs to be enabled.
4896 * @count: unused variable.
4901 * length of the buf on success if val is in range the intended mode
4903 * -EINVAL if val out of range or intended mode is not supported.
4906 lpfc_request_firmware_upgrade_store(struct device *dev,
4907 struct device_attribute *attr,
4908 const char *buf, size_t count)
4910 struct Scsi_Host *shost = class_to_shost(dev);
4911 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4912 struct lpfc_hba *phba = vport->phba;
4913 int val = 0, rc = -EINVAL;
4915 /* Sanity check on user data */
4916 if (!isdigit(buf[0]))
4918 if (sscanf(buf, "%i", &val) != 1)
4923 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE);
4931 static int lpfc_req_fw_upgrade;
4932 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR);
4933 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade");
4934 lpfc_param_show(request_firmware_upgrade)
4937 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade
4938 * @phba: lpfc_hba pointer.
4942 * Set the initial Linux generic firmware upgrade enable or disable flag.
4945 * zero if val saved.
4946 * -EINVAL val out of range
4949 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val)
4951 if (val >= 0 && val <= 1) {
4952 phba->cfg_request_firmware_upgrade = val;
4957 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR,
4958 lpfc_request_firmware_upgrade_show,
4959 lpfc_request_firmware_upgrade_store);
4962 * lpfc_force_rscn_store
4964 * @dev: class device that is converted into a Scsi_host.
4965 * @attr: device attribute, not used.
4966 * @buf: unused string
4967 * @count: unused variable.
4970 * Force the switch to send a RSCN to all other NPorts in our zone
4971 * If we are direct connect pt2pt, build the RSCN command ourself
4972 * and send to the other NPort. Not supported for private loop.
4976 * -EIO - if command is not sent
4979 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr,
4980 const char *buf, size_t count)
4982 struct Scsi_Host *shost = class_to_shost(dev);
4983 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4986 i = lpfc_issue_els_rscn(vport, 0);
4993 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts
4994 * connected to the HBA.
4996 * Value range is any ascii value
4998 static int lpfc_force_rscn;
4999 module_param(lpfc_force_rscn, int, 0644);
5000 MODULE_PARM_DESC(lpfc_force_rscn,
5001 "Force an RSCN to be sent to all remote NPorts");
5002 lpfc_param_show(force_rscn)
5005 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts
5006 * @phba: lpfc_hba pointer.
5007 * @val: unused value.
5010 * zero if val saved.
5013 lpfc_force_rscn_init(struct lpfc_hba *phba, int val)
5017 static DEVICE_ATTR_RW(lpfc_force_rscn);
5020 * lpfc_fcp_imax_store
5022 * @dev: class device that is converted into a Scsi_host.
5023 * @attr: device attribute, not used.
5024 * @buf: string with the number of fast-path FCP interrupts per second.
5025 * @count: unused variable.
5028 * If val is in a valid range [636,651042], then set the adapter's
5029 * maximum number of fast-path FCP interrupts per second.
5032 * length of the buf on success if val is in range the intended mode
5034 * -EINVAL if val out of range or intended mode is not supported.
5037 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
5038 const char *buf, size_t count)
5040 struct Scsi_Host *shost = class_to_shost(dev);
5041 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5042 struct lpfc_hba *phba = vport->phba;
5043 struct lpfc_eq_intr_info *eqi;
5047 /* fcp_imax is only valid for SLI4 */
5048 if (phba->sli_rev != LPFC_SLI_REV4)
5051 /* Sanity check on user data */
5052 if (!isdigit(buf[0]))
5054 if (sscanf(buf, "%i", &val) != 1)
5058 * Value range for the HBA is [5000,5000000]
5059 * The value for each EQ depends on how many EQs are configured.
5062 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX))
5065 phba->cfg_auto_imax = (val) ? 0 : 1;
5066 if (phba->cfg_fcp_imax && !val) {
5067 queue_delayed_work(phba->wq, &phba->eq_delay_work,
5068 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
5070 for_each_present_cpu(i) {
5071 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
5076 phba->cfg_fcp_imax = (uint32_t)val;
5078 if (phba->cfg_fcp_imax)
5079 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
5083 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT)
5084 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT,
5091 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
5094 # Value range is [5,000 to 5,000,000]. Default value is 50,000.
5096 static int lpfc_fcp_imax = LPFC_DEF_IMAX;
5097 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
5098 MODULE_PARM_DESC(lpfc_fcp_imax,
5099 "Set the maximum number of FCP interrupts per second per HBA");
5100 lpfc_param_show(fcp_imax)
5103 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable
5104 * @phba: lpfc_hba pointer.
5105 * @val: link speed value.
5108 * If val is in a valid range [636,651042], then initialize the adapter's
5109 * maximum number of fast-path FCP interrupts per second.
5112 * zero if val saved.
5113 * -EINVAL val out of range
5116 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
5118 if (phba->sli_rev != LPFC_SLI_REV4) {
5119 phba->cfg_fcp_imax = 0;
5123 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) ||
5125 phba->cfg_fcp_imax = val;
5129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5130 "3016 lpfc_fcp_imax: %d out of range, using default\n",
5132 phba->cfg_fcp_imax = LPFC_DEF_IMAX;
5137 static DEVICE_ATTR_RW(lpfc_fcp_imax);
5140 * lpfc_cq_max_proc_limit_store
5142 * @dev: class device that is converted into a Scsi_host.
5143 * @attr: device attribute, not used.
5144 * @buf: string with the cq max processing limit of cqes
5145 * @count: unused variable.
5148 * If val is in a valid range, then set value on each cq
5151 * The length of the buf: if successful
5152 * -ERANGE: if val is not in the valid range
5153 * -EINVAL: if bad value format or intended mode is not supported.
5156 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr,
5157 const char *buf, size_t count)
5159 struct Scsi_Host *shost = class_to_shost(dev);
5160 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5161 struct lpfc_hba *phba = vport->phba;
5162 struct lpfc_queue *eq, *cq;
5166 /* cq_max_proc_limit is only valid for SLI4 */
5167 if (phba->sli_rev != LPFC_SLI_REV4)
5170 /* Sanity check on user data */
5171 if (!isdigit(buf[0]))
5173 if (kstrtoul(buf, 0, &val))
5176 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT)
5179 phba->cfg_cq_max_proc_limit = (uint32_t)val;
5181 /* set the values on the cq's */
5182 for (i = 0; i < phba->cfg_irq_chann; i++) {
5183 /* Get the EQ corresponding to the IRQ vector */
5184 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
5188 list_for_each_entry(cq, &eq->child_list, list)
5189 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
5197 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an
5198 * itteration of CQ processing.
5200 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT;
5201 module_param(lpfc_cq_max_proc_limit, int, 0644);
5202 MODULE_PARM_DESC(lpfc_cq_max_proc_limit,
5203 "Set the maximum number CQEs processed in an iteration of "
5205 lpfc_param_show(cq_max_proc_limit)
5208 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a
5209 * single handler call which should request a polled completion rather
5210 * than re-enabling interrupts.
5212 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL,
5213 LPFC_CQ_MIN_THRESHOLD_TO_POLL,
5214 LPFC_CQ_MAX_THRESHOLD_TO_POLL,
5215 "CQE Processing Threshold to enable Polling");
5218 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit
5219 * @phba: lpfc_hba pointer.
5223 * If val is in a valid range, then initialize the adapter's maximum
5227 * Always returns 0 for success, even if value not always set to
5228 * requested value. If value out of range or not supported, will fall
5232 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val)
5234 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT;
5236 if (phba->sli_rev != LPFC_SLI_REV4)
5239 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) {
5240 phba->cfg_cq_max_proc_limit = val;
5244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5245 "0371 "LPFC_DRIVER_NAME"_cq_max_proc_limit: "
5246 "%d out of range, using default\n",
5247 phba->cfg_cq_max_proc_limit);
5252 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit);
5255 * lpfc_state_show - Display current driver CPU affinity
5256 * @dev: class converted to a Scsi_host structure.
5257 * @attr: device attribute, not used.
5258 * @buf: on return contains text describing the state of the link.
5260 * Returns: size of formatted string.
5263 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr,
5266 struct Scsi_Host *shost = class_to_shost(dev);
5267 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5268 struct lpfc_hba *phba = vport->phba;
5269 struct lpfc_vector_map_info *cpup;
5272 if ((phba->sli_rev != LPFC_SLI_REV4) ||
5273 (phba->intr_type != MSIX))
5276 switch (phba->cfg_fcp_cpu_map) {
5278 len += scnprintf(buf + len, PAGE_SIZE-len,
5279 "fcp_cpu_map: No mapping (%d)\n",
5280 phba->cfg_fcp_cpu_map);
5283 len += scnprintf(buf + len, PAGE_SIZE-len,
5284 "fcp_cpu_map: HBA centric mapping (%d): "
5285 "%d of %d CPUs online from %d possible CPUs\n",
5286 phba->cfg_fcp_cpu_map, num_online_cpus(),
5288 phba->sli4_hba.num_possible_cpu);
5292 while (phba->sli4_hba.curr_disp_cpu <
5293 phba->sli4_hba.num_possible_cpu) {
5294 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
5296 if (!cpu_present(phba->sli4_hba.curr_disp_cpu))
5297 len += scnprintf(buf + len, PAGE_SIZE - len,
5298 "CPU %02d not present\n",
5299 phba->sli4_hba.curr_disp_cpu);
5300 else if (cpup->irq == LPFC_VECTOR_MAP_EMPTY) {
5301 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY)
5303 buf + len, PAGE_SIZE - len,
5304 "CPU %02d hdwq None "
5305 "physid %d coreid %d ht %d ua %d\n",
5306 phba->sli4_hba.curr_disp_cpu,
5307 cpup->phys_id, cpup->core_id,
5308 (cpup->flag & LPFC_CPU_MAP_HYPER),
5309 (cpup->flag & LPFC_CPU_MAP_UNASSIGN));
5312 buf + len, PAGE_SIZE - len,
5313 "CPU %02d EQ %04d hdwq %04d "
5314 "physid %d coreid %d ht %d ua %d\n",
5315 phba->sli4_hba.curr_disp_cpu,
5316 cpup->eq, cpup->hdwq, cpup->phys_id,
5318 (cpup->flag & LPFC_CPU_MAP_HYPER),
5319 (cpup->flag & LPFC_CPU_MAP_UNASSIGN));
5321 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY)
5323 buf + len, PAGE_SIZE - len,
5324 "CPU %02d hdwq None "
5325 "physid %d coreid %d ht %d ua %d IRQ %d\n",
5326 phba->sli4_hba.curr_disp_cpu,
5329 (cpup->flag & LPFC_CPU_MAP_HYPER),
5330 (cpup->flag & LPFC_CPU_MAP_UNASSIGN),
5334 buf + len, PAGE_SIZE - len,
5335 "CPU %02d EQ %04d hdwq %04d "
5336 "physid %d coreid %d ht %d ua %d IRQ %d\n",
5337 phba->sli4_hba.curr_disp_cpu,
5338 cpup->eq, cpup->hdwq, cpup->phys_id,
5340 (cpup->flag & LPFC_CPU_MAP_HYPER),
5341 (cpup->flag & LPFC_CPU_MAP_UNASSIGN),
5345 phba->sli4_hba.curr_disp_cpu++;
5347 /* display max number of CPUs keeping some margin */
5348 if (phba->sli4_hba.curr_disp_cpu <
5349 phba->sli4_hba.num_possible_cpu &&
5350 (len >= (PAGE_SIZE - 64))) {
5351 len += scnprintf(buf + len,
5352 PAGE_SIZE - len, "more...\n");
5357 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu)
5358 phba->sli4_hba.curr_disp_cpu = 0;
5364 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors
5365 * @dev: class device that is converted into a Scsi_host.
5366 * @attr: device attribute, not used.
5367 * @buf: one or more lpfc_polling_flags values.
5371 * -EINVAL - Not implemented yet.
5374 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr,
5375 const char *buf, size_t count)
5377 int status = -EINVAL;
5382 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors
5385 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1).
5386 # 0 - Do not affinitze IRQ vectors
5387 # 1 - Affintize HBA vectors with respect to each HBA
5388 # (start with CPU0 for each HBA)
5389 # This also defines how Hardware Queues are mapped to specific CPUs.
5391 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP;
5392 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR);
5393 MODULE_PARM_DESC(lpfc_fcp_cpu_map,
5394 "Defines how to map CPUs to IRQ vectors per HBA");
5397 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable
5398 * @phba: lpfc_hba pointer.
5399 * @val: link speed value.
5402 * If val is in a valid range [0-2], then affinitze the adapter's
5406 * zero if val saved.
5407 * -EINVAL val out of range
5410 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val)
5412 if (phba->sli_rev != LPFC_SLI_REV4) {
5413 phba->cfg_fcp_cpu_map = 0;
5417 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) {
5418 phba->cfg_fcp_cpu_map = val;
5422 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5423 "3326 lpfc_fcp_cpu_map: %d out of range, using "
5425 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP;
5430 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map);
5433 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
5434 # Value range is [2,3]. Default value is 3.
5436 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
5437 "Select Fibre Channel class of service for FCP sequences");
5440 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
5441 # is [0,1]. Default value is 0.
5443 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
5444 "Use ADISC on rediscovery to authenticate FCP devices");
5447 # lpfc_first_burst_size: First burst size to use on the NPorts
5448 # that support first burst.
5449 # Value range is [0,65536]. Default value is 0.
5451 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536,
5452 "First burst size for Targets that support first burst");
5455 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size.
5456 * When the driver is configured as an NVME target, this value is
5457 * communicated to the NVME initiator in the PRLI response. It is
5458 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support
5459 * parameters are set and the target is sending the PRLI RSP.
5460 * Parameter supported on physical port only - no NPIV support.
5461 * Value range is [0,65536]. Default value is 0.
5463 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536,
5464 "NVME Target mode first burst size in 512B increments.");
5467 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions.
5468 * For the Initiator (I), enabling this parameter means that an NVMET
5469 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be
5470 * processed by the initiator for subsequent NVME FCP IO. For the target
5471 * function (T), enabling this parameter qualifies the lpfc_nvmet_fb_size
5472 * driver parameter as the target function's first burst size returned to the
5473 * initiator in the target's NVME PRLI response. Parameter supported on physical
5474 * port only - no NPIV support.
5475 * Value range is [0,1]. Default value is 0 (disabled).
5477 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1,
5478 "Enable First Burst feature on I and T functions.");
5481 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
5482 # depth. Default value is 0. When the value of this parameter is zero the
5483 # SCSI command completion time is not used for controlling I/O queue depth. When
5484 # the parameter is set to a non-zero value, the I/O queue depth is controlled
5485 # to limit the I/O completion time to the parameter value.
5486 # The value is set in milliseconds.
5488 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000,
5489 "Use command completion time to control queue depth");
5491 lpfc_vport_param_show(max_scsicmpl_time);
5493 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
5495 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5496 struct lpfc_nodelist *ndlp, *next_ndlp;
5498 if (val == vport->cfg_max_scsicmpl_time)
5500 if ((val < 0) || (val > 60000))
5502 vport->cfg_max_scsicmpl_time = val;
5504 spin_lock_irq(shost->host_lock);
5505 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
5506 if (!NLP_CHK_NODE_ACT(ndlp))
5508 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
5510 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
5512 spin_unlock_irq(shost->host_lock);
5515 lpfc_vport_param_store(max_scsicmpl_time);
5516 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time);
5519 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
5520 # range is [0,1]. Default value is 0.
5522 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
5525 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature
5526 # range is [0,1]. Default value is 1.
5528 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing");
5531 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds
5532 * range is [0,1]. Default value is 0.
5533 * For [0], FCP commands are issued to Work Queues based on upper layer
5534 * hardware queue index.
5535 * For [1], FCP commands are issued to a Work Queue associated with the
5538 * LPFC_FCP_SCHED_BY_HDWQ == 0
5539 * LPFC_FCP_SCHED_BY_CPU == 1
5541 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu
5542 * affinity for FCP/NVME I/Os through Work Queues associated with the current
5543 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os
5544 * through WQs will be used.
5546 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU,
5547 LPFC_FCP_SCHED_BY_HDWQ,
5548 LPFC_FCP_SCHED_BY_CPU,
5549 "Determine scheduling algorithm for "
5550 "issuing commands [0] - Hardware Queue, [1] - Current CPU");
5553 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN
5554 * range is [0,1]. Default value is 0.
5555 * For [0], GID_FT is used for NameServer queries after RSCN (default)
5556 * For [1], GID_PT is used for NameServer queries after RSCN
5559 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT,
5560 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT,
5561 "Determine algorithm NameServer queries after RSCN "
5562 "[0] - GID_FT, [1] - GID_PT");
5565 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior
5566 # range is [0,1]. Default value is 0.
5567 # For [0], bus reset issues target reset to ALL devices
5568 # For [1], bus reset issues target reset to non-FCP2 devices
5570 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for "
5571 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset");
5575 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
5576 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
5577 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
5578 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
5579 # cr_delay is set to 0.
5581 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
5582 "interrupt response is generated");
5584 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
5585 "interrupt response is generated");
5588 # lpfc_multi_ring_support: Determines how many rings to spread available
5589 # cmd/rsp IOCB entries across.
5590 # Value range is [1,2]. Default value is 1.
5592 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
5593 "SLI rings to spread IOCB entries across");
5596 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
5597 # identifies what rctl value to configure the additional ring for.
5598 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
5600 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
5601 255, "Identifies RCTL for additional ring configuration");
5604 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
5605 # identifies what type value to configure the additional ring for.
5606 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
5608 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
5609 255, "Identifies TYPE for additional ring configuration");
5612 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN
5613 # 0 = SmartSAN functionality disabled (default)
5614 # 1 = SmartSAN functionality enabled
5615 # This parameter will override the value of lpfc_fdmi_on module parameter.
5616 # Value range is [0,1]. Default value is 0.
5618 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality");
5621 # lpfc_fdmi_on: Controls FDMI support.
5623 # 1 Traditional FDMI support (default)
5624 # Traditional FDMI support means the driver will assume FDMI-2 support;
5625 # however, if that fails, it will fallback to FDMI-1.
5626 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on.
5627 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of
5629 # Value range [0,1]. Default value is 1.
5631 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support");
5634 # Specifies the maximum number of ELS cmds we can have outstanding (for
5635 # discovery). Value range is [1,64]. Default value = 32.
5637 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
5638 "during discovery");
5641 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that
5642 # will be scanned by the SCSI midlayer when sequential scanning is
5643 # used; and is also the highest LUN ID allowed when the SCSI midlayer
5644 # parses REPORT_LUN responses. The lpfc driver has no LUN count or
5645 # LUN ID limit, but the SCSI midlayer requires this field for the uses
5646 # above. The lpfc driver limits the default value to 255 for two reasons.
5647 # As it bounds the sequential scan loop, scanning for thousands of luns
5648 # on a target can take minutes of wall clock time. Additionally,
5649 # there are FC targets, such as JBODs, that only recognize 8-bits of
5650 # LUN ID. When they receive a value greater than 8 bits, they chop off
5651 # the high order bits. In other words, they see LUN IDs 0, 256, 512,
5652 # and so on all as LUN ID 0. This causes the linux kernel, which sees
5653 # valid responses at each of the LUN IDs, to believe there are multiple
5654 # devices present, when in fact, there is only 1.
5655 # A customer that is aware of their target behaviors, and the results as
5656 # indicated above, is welcome to increase the lpfc_max_luns value.
5657 # As mentioned, this value is not used by the lpfc driver, only the
5659 # Value range is [0,65535]. Default value is 255.
5660 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
5662 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID");
5665 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
5666 # Value range is [1,255], default value is 10.
5668 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
5669 "Milliseconds driver will wait between polling FCP ring");
5672 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands
5673 # to complete in seconds. Value range is [5,180], default value is 60.
5675 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180,
5676 "Maximum time to wait for task management commands to complete");
5678 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
5679 # support this feature
5682 # 2 = MSI-X enabled (default)
5683 # Value range is [0,2]. Default value is 2.
5685 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
5686 "MSI-X (2), if possible");
5689 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs
5691 * 0 = NVME OAS disabled
5692 * 1 = NVME OAS enabled
5694 * Value range is [0,1]. Default value is 0.
5696 LPFC_ATTR_RW(nvme_oas, 0, 0, 1,
5697 "Use OAS bit on NVME IOs");
5700 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs
5702 * 0 = Put NVME Command in SGL
5703 * 1 = Embed NVME Command in WQE (unless G7)
5704 * 2 = Embed NVME Command in WQE (force)
5706 * Value range is [0,2]. Default value is 1.
5708 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2,
5709 "Embed NVME Command in WQE");
5712 * lpfc_hdw_queue: Set the number of Hardware Queues the driver
5713 * will advertise it supports to the NVME and SCSI layers. This also
5714 * will map to the number of CQ/WQ pairs the driver will create.
5716 * The NVME Layer will try to create this many, plus 1 administrative
5717 * hardware queue. The administrative queue will always map to WQ 0
5718 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ.
5720 * 0 = Configure the number of hdw queues to the number of active CPUs.
5721 * 1,128 = Manually specify how many hdw queues to use.
5723 * Value range is [0,128]. Default value is 0.
5725 LPFC_ATTR_R(hdw_queue,
5727 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX,
5728 "Set the number of I/O Hardware Queues");
5731 * lpfc_irq_chann: Set the number of IRQ vectors that are available
5732 * for Hardware Queues to utilize. This also will map to the number
5733 * of EQ / MSI-X vectors the driver will create. This should never be
5734 * more than the number of Hardware Queues
5736 * 0 = Configure number of IRQ Channels to the number of active CPUs.
5737 * 1,128 = Manually specify how many IRQ Channels to use.
5739 * Value range is [0,128]. Default value is 0.
5741 LPFC_ATTR_R(irq_chann,
5743 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX,
5744 "Set the number of I/O IRQ Channels");
5747 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
5748 # 0 = HBA resets disabled
5749 # 1 = HBA resets enabled (default)
5750 # 2 = HBA reset via PCI bus reset enabled
5751 # Value range is [0,2]. Default value is 1.
5753 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver.");
5756 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
5757 # 0 = HBA Heartbeat disabled
5758 # 1 = HBA Heartbeat enabled (default)
5759 # Value range is [0,1]. Default value is 1.
5761 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
5764 # lpfc_EnableXLane: Enable Express Lane Feature
5765 # 0x0 Express Lane Feature disabled
5766 # 0x1 Express Lane Feature enabled
5767 # Value range is [0,1]. Default value is 0.
5769 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
5772 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature
5773 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits)
5774 # Value range is [0x0,0x7f]. Default value is 0
5776 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
5779 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
5780 # 0 = BlockGuard disabled (default)
5781 # 1 = BlockGuard enabled
5782 # Value range is [0,1]. Default value is 0.
5784 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
5788 # - Bit mask of host protection capabilities used to register with the
5790 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
5791 # - Allows you to ultimately specify which profiles to use
5792 # - Default will result in registering capabilities for all profiles.
5793 # - SHOST_DIF_TYPE1_PROTECTION 1
5794 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection
5795 # - SHOST_DIX_TYPE0_PROTECTION 8
5796 # HBA supports DIX Type 0: Host to HBA protection only
5797 # - SHOST_DIX_TYPE1_PROTECTION 16
5798 # HBA supports DIX Type 1: Host to HBA Type 1 protection
5801 LPFC_ATTR(prot_mask,
5802 (SHOST_DIF_TYPE1_PROTECTION |
5803 SHOST_DIX_TYPE0_PROTECTION |
5804 SHOST_DIX_TYPE1_PROTECTION),
5806 (SHOST_DIF_TYPE1_PROTECTION |
5807 SHOST_DIX_TYPE0_PROTECTION |
5808 SHOST_DIX_TYPE1_PROTECTION),
5809 "T10-DIF host protection capabilities mask");
5812 # lpfc_prot_guard: i
5813 # - Bit mask of protection guard types to register with the SCSI mid-layer
5814 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum
5815 # - Allows you to ultimately specify which profiles to use
5816 # - Default will result in registering capabilities for all guard types
5819 LPFC_ATTR(prot_guard,
5820 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP,
5821 "T10-DIF host protection guard type");
5824 * Delay initial NPort discovery when Clean Address bit is cleared in
5825 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
5826 * This parameter can have value 0 or 1.
5827 * When this parameter is set to 0, no delay is added to the initial
5829 * When this parameter is set to non-zero value, initial Nport discovery is
5830 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
5831 * accept and FCID/Fabric name/Fabric portname is changed.
5832 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
5833 * when Clean Address bit is cleared in FLOGI/FDISC
5834 * accept and FCID/Fabric name/Fabric portname is changed.
5835 * Default value is 0.
5837 LPFC_ATTR(delay_discovery, 0, 0, 1,
5838 "Delay NPort discovery when Clean Address bit is cleared.");
5841 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
5842 * This value can be set to values between 64 and 4096. The default value
5843 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi
5844 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE).
5845 * Because of the additional overhead involved in setting up T10-DIF,
5846 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4
5847 * and will be limited to 512 if BlockGuard is enabled under SLI3.
5849 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT;
5850 module_param(lpfc_sg_seg_cnt, uint, 0444);
5851 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count");
5854 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes
5855 * configured for the adapter
5856 * @dev: class converted to a Scsi_host structure.
5857 * @attr: device attribute, not used.
5858 * @buf: on return contains a string with the list sizes
5860 * Returns: size of formatted string.
5863 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr,
5866 struct Scsi_Host *shost = class_to_shost(dev);
5867 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5868 struct lpfc_hba *phba = vport->phba;
5871 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n",
5872 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt);
5874 len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n",
5875 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt,
5876 phba->cfg_nvme_seg_cnt);
5880 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt);
5883 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value
5884 * @phba: lpfc_hba pointer.
5885 * @val: contains the initial value
5888 * Validates the initial value is within range and assigns it to the
5889 * adapter. If not in range, an error message is posted and the
5890 * default value is assigned.
5893 * zero if value is in range and is set
5894 * -EINVAL if value was out of range
5897 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val)
5899 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) {
5900 phba->cfg_sg_seg_cnt = val;
5903 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5904 "0409 "LPFC_DRIVER_NAME"_sg_seg_cnt attribute cannot "
5905 "be set to %d, allowed range is [%d, %d]\n",
5906 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT);
5907 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT;
5912 * lpfc_enable_mds_diags: Enable MDS Diagnostics
5913 * 0 = MDS Diagnostics disabled (default)
5914 * 1 = MDS Diagnostics enabled
5915 * Value range is [0,1]. Default value is 0.
5917 LPFC_ATTR_R(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics");
5920 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size
5921 * 0 = Disable firmware logging (default)
5922 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging
5923 * Value range [0..4]. Default value is 0
5925 LPFC_ATTR_RW(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging");
5928 * lpfc_ras_fwlog_level: Firmware logging verbosity level
5929 * Valid only if firmware logging is enabled
5930 * 0(Least Verbosity) 4 (most verbosity)
5931 * Value range is [0..4]. Default value is 0
5933 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level");
5936 * lpfc_ras_fwlog_func: Firmware logging enabled on function number
5937 * Default function which has RAS support : 0
5938 * Value Range is [0..7].
5939 * FW logging is a global action and enablement is via a specific
5942 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function");
5945 * lpfc_enable_bbcr: Enable BB Credit Recovery
5946 * 0 = BB Credit Recovery disabled
5947 * 1 = BB Credit Recovery enabled (default)
5948 * Value range is [0,1]. Default value is 1.
5950 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery");
5953 * lpfc_enable_dpp: Enable DPP on G7
5954 * 0 = DPP on G7 disabled
5955 * 1 = DPP on G7 enabled (default)
5956 * Value range is [0,1]. Default value is 1.
5958 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push");
5960 struct device_attribute *lpfc_hba_attrs[] = {
5961 &dev_attr_nvme_info,
5962 &dev_attr_scsi_stat,
5964 &dev_attr_bg_guard_err,
5965 &dev_attr_bg_apptag_err,
5966 &dev_attr_bg_reftag_err,
5968 &dev_attr_serialnum,
5969 &dev_attr_modeldesc,
5970 &dev_attr_modelname,
5971 &dev_attr_programtype,
5975 &dev_attr_option_rom_version,
5976 &dev_attr_link_state,
5977 &dev_attr_num_discovered_ports,
5978 &dev_attr_menlo_mgmt_mode,
5979 &dev_attr_lpfc_drvr_version,
5980 &dev_attr_lpfc_enable_fip,
5981 &dev_attr_lpfc_temp_sensor,
5982 &dev_attr_lpfc_log_verbose,
5983 &dev_attr_lpfc_lun_queue_depth,
5984 &dev_attr_lpfc_tgt_queue_depth,
5985 &dev_attr_lpfc_hba_queue_depth,
5986 &dev_attr_lpfc_peer_port_login,
5987 &dev_attr_lpfc_nodev_tmo,
5988 &dev_attr_lpfc_devloss_tmo,
5989 &dev_attr_lpfc_enable_fc4_type,
5990 &dev_attr_lpfc_fcp_class,
5991 &dev_attr_lpfc_use_adisc,
5992 &dev_attr_lpfc_first_burst_size,
5993 &dev_attr_lpfc_ack0,
5994 &dev_attr_lpfc_xri_rebalancing,
5995 &dev_attr_lpfc_topology,
5996 &dev_attr_lpfc_scan_down,
5997 &dev_attr_lpfc_link_speed,
5998 &dev_attr_lpfc_fcp_io_sched,
5999 &dev_attr_lpfc_ns_query,
6000 &dev_attr_lpfc_fcp2_no_tgt_reset,
6001 &dev_attr_lpfc_cr_delay,
6002 &dev_attr_lpfc_cr_count,
6003 &dev_attr_lpfc_multi_ring_support,
6004 &dev_attr_lpfc_multi_ring_rctl,
6005 &dev_attr_lpfc_multi_ring_type,
6006 &dev_attr_lpfc_fdmi_on,
6007 &dev_attr_lpfc_enable_SmartSAN,
6008 &dev_attr_lpfc_max_luns,
6009 &dev_attr_lpfc_enable_npiv,
6010 &dev_attr_lpfc_fcf_failover_policy,
6011 &dev_attr_lpfc_enable_rrq,
6012 &dev_attr_nport_evt_cnt,
6013 &dev_attr_board_mode,
6020 &dev_attr_npiv_info,
6021 &dev_attr_issue_reset,
6022 &dev_attr_lpfc_poll,
6023 &dev_attr_lpfc_poll_tmo,
6024 &dev_attr_lpfc_task_mgmt_tmo,
6025 &dev_attr_lpfc_use_msi,
6026 &dev_attr_lpfc_nvme_oas,
6027 &dev_attr_lpfc_nvme_embed_cmd,
6028 &dev_attr_lpfc_fcp_imax,
6029 &dev_attr_lpfc_force_rscn,
6030 &dev_attr_lpfc_cq_poll_threshold,
6031 &dev_attr_lpfc_cq_max_proc_limit,
6032 &dev_attr_lpfc_fcp_cpu_map,
6033 &dev_attr_lpfc_hdw_queue,
6034 &dev_attr_lpfc_irq_chann,
6035 &dev_attr_lpfc_suppress_rsp,
6036 &dev_attr_lpfc_nvmet_mrq,
6037 &dev_attr_lpfc_nvmet_mrq_post,
6038 &dev_attr_lpfc_nvme_enable_fb,
6039 &dev_attr_lpfc_nvmet_fb_size,
6040 &dev_attr_lpfc_enable_bg,
6041 &dev_attr_lpfc_soft_wwnn,
6042 &dev_attr_lpfc_soft_wwpn,
6043 &dev_attr_lpfc_soft_wwn_enable,
6044 &dev_attr_lpfc_enable_hba_reset,
6045 &dev_attr_lpfc_enable_hba_heartbeat,
6046 &dev_attr_lpfc_EnableXLane,
6047 &dev_attr_lpfc_XLanePriority,
6048 &dev_attr_lpfc_xlane_lun,
6049 &dev_attr_lpfc_xlane_tgt,
6050 &dev_attr_lpfc_xlane_vpt,
6051 &dev_attr_lpfc_xlane_lun_state,
6052 &dev_attr_lpfc_xlane_lun_status,
6053 &dev_attr_lpfc_xlane_priority,
6054 &dev_attr_lpfc_sg_seg_cnt,
6055 &dev_attr_lpfc_max_scsicmpl_time,
6056 &dev_attr_lpfc_stat_data_ctrl,
6057 &dev_attr_lpfc_aer_support,
6058 &dev_attr_lpfc_aer_state_cleanup,
6059 &dev_attr_lpfc_sriov_nr_virtfn,
6060 &dev_attr_lpfc_req_fw_upgrade,
6061 &dev_attr_lpfc_suppress_link_up,
6062 &dev_attr_lpfc_iocb_cnt,
6065 &dev_attr_txcmplq_hw,
6066 &dev_attr_lpfc_fips_level,
6067 &dev_attr_lpfc_fips_rev,
6069 &dev_attr_lpfc_sriov_hw_max_virtfn,
6071 &dev_attr_lpfc_xlane_supported,
6072 &dev_attr_lpfc_enable_mds_diags,
6073 &dev_attr_lpfc_ras_fwlog_buffsize,
6074 &dev_attr_lpfc_ras_fwlog_level,
6075 &dev_attr_lpfc_ras_fwlog_func,
6076 &dev_attr_lpfc_enable_bbcr,
6077 &dev_attr_lpfc_enable_dpp,
6081 struct device_attribute *lpfc_vport_attrs[] = {
6083 &dev_attr_link_state,
6084 &dev_attr_num_discovered_ports,
6085 &dev_attr_lpfc_drvr_version,
6086 &dev_attr_lpfc_log_verbose,
6087 &dev_attr_lpfc_lun_queue_depth,
6088 &dev_attr_lpfc_tgt_queue_depth,
6089 &dev_attr_lpfc_nodev_tmo,
6090 &dev_attr_lpfc_devloss_tmo,
6091 &dev_attr_lpfc_hba_queue_depth,
6092 &dev_attr_lpfc_peer_port_login,
6093 &dev_attr_lpfc_restrict_login,
6094 &dev_attr_lpfc_fcp_class,
6095 &dev_attr_lpfc_use_adisc,
6096 &dev_attr_lpfc_first_burst_size,
6097 &dev_attr_lpfc_max_luns,
6098 &dev_attr_nport_evt_cnt,
6099 &dev_attr_npiv_info,
6100 &dev_attr_lpfc_enable_da_id,
6101 &dev_attr_lpfc_max_scsicmpl_time,
6102 &dev_attr_lpfc_stat_data_ctrl,
6103 &dev_attr_lpfc_static_vport,
6104 &dev_attr_lpfc_fips_level,
6105 &dev_attr_lpfc_fips_rev,
6110 * sysfs_ctlreg_write - Write method for writing to ctlreg
6111 * @filp: open sysfs file
6112 * @kobj: kernel kobject that contains the kernel class device.
6113 * @bin_attr: kernel attributes passed to us.
6114 * @buf: contains the data to be written to the adapter IOREG space.
6115 * @off: offset into buffer to beginning of data.
6116 * @count: bytes to transfer.
6119 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
6120 * Uses the adapter io control registers to send buf contents to the adapter.
6123 * -ERANGE off and count combo out of range
6124 * -EINVAL off, count or buff address invalid
6125 * -EPERM adapter is offline
6126 * value of count, buf contents written
6129 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
6130 struct bin_attribute *bin_attr,
6131 char *buf, loff_t off, size_t count)
6134 struct device *dev = container_of(kobj, struct device, kobj);
6135 struct Scsi_Host *shost = class_to_shost(dev);
6136 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6137 struct lpfc_hba *phba = vport->phba;
6139 if (phba->sli_rev >= LPFC_SLI_REV4)
6142 if ((off + count) > FF_REG_AREA_SIZE)
6145 if (count <= LPFC_REG_WRITE_KEY_SIZE)
6148 if (off % 4 || count % 4 || (unsigned long)buf % 4)
6151 /* This is to protect HBA registers from accidental writes. */
6152 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE))
6155 if (!(vport->fc_flag & FC_OFFLINE_MODE))
6158 spin_lock_irq(&phba->hbalock);
6159 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE;
6160 buf_off += sizeof(uint32_t))
6161 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)),
6162 phba->ctrl_regs_memmap_p + off + buf_off);
6164 spin_unlock_irq(&phba->hbalock);
6170 * sysfs_ctlreg_read - Read method for reading from ctlreg
6171 * @filp: open sysfs file
6172 * @kobj: kernel kobject that contains the kernel class device.
6173 * @bin_attr: kernel attributes passed to us.
6174 * @buf: if successful contains the data from the adapter IOREG space.
6175 * @off: offset into buffer to beginning of data.
6176 * @count: bytes to transfer.
6179 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
6180 * Uses the adapter io control registers to read data into buf.
6183 * -ERANGE off and count combo out of range
6184 * -EINVAL off, count or buff address invalid
6185 * value of count, buf contents read
6188 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
6189 struct bin_attribute *bin_attr,
6190 char *buf, loff_t off, size_t count)
6194 struct device *dev = container_of(kobj, struct device, kobj);
6195 struct Scsi_Host *shost = class_to_shost(dev);
6196 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6197 struct lpfc_hba *phba = vport->phba;
6199 if (phba->sli_rev >= LPFC_SLI_REV4)
6202 if (off > FF_REG_AREA_SIZE)
6205 if ((off + count) > FF_REG_AREA_SIZE)
6206 count = FF_REG_AREA_SIZE - off;
6208 if (count == 0) return 0;
6210 if (off % 4 || count % 4 || (unsigned long)buf % 4)
6213 spin_lock_irq(&phba->hbalock);
6215 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
6216 tmp_ptr = (uint32_t *)(buf + buf_off);
6217 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
6220 spin_unlock_irq(&phba->hbalock);
6225 static struct bin_attribute sysfs_ctlreg_attr = {
6228 .mode = S_IRUSR | S_IWUSR,
6231 .read = sysfs_ctlreg_read,
6232 .write = sysfs_ctlreg_write,
6236 * sysfs_mbox_write - Write method for writing information via mbox
6237 * @filp: open sysfs file
6238 * @kobj: kernel kobject that contains the kernel class device.
6239 * @bin_attr: kernel attributes passed to us.
6240 * @buf: contains the data to be written to sysfs mbox.
6241 * @off: offset into buffer to beginning of data.
6242 * @count: bytes to transfer.
6245 * Deprecated function. All mailbox access from user space is performed via the
6249 * -EPERM operation not permitted
6252 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
6253 struct bin_attribute *bin_attr,
6254 char *buf, loff_t off, size_t count)
6260 * sysfs_mbox_read - Read method for reading information via mbox
6261 * @filp: open sysfs file
6262 * @kobj: kernel kobject that contains the kernel class device.
6263 * @bin_attr: kernel attributes passed to us.
6264 * @buf: contains the data to be read from sysfs mbox.
6265 * @off: offset into buffer to beginning of data.
6266 * @count: bytes to transfer.
6269 * Deprecated function. All mailbox access from user space is performed via the
6273 * -EPERM operation not permitted
6276 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
6277 struct bin_attribute *bin_attr,
6278 char *buf, loff_t off, size_t count)
6283 static struct bin_attribute sysfs_mbox_attr = {
6286 .mode = S_IRUSR | S_IWUSR,
6288 .size = MAILBOX_SYSFS_MAX,
6289 .read = sysfs_mbox_read,
6290 .write = sysfs_mbox_write,
6294 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
6295 * @vport: address of lpfc vport structure.
6299 * error return code from sysfs_create_bin_file()
6302 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
6304 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6307 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
6308 &sysfs_drvr_stat_data_attr);
6310 /* Virtual ports do not need ctrl_reg and mbox */
6311 if (error || vport->port_type == LPFC_NPIV_PORT)
6314 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
6315 &sysfs_ctlreg_attr);
6317 goto out_remove_stat_attr;
6319 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
6322 goto out_remove_ctlreg_attr;
6325 out_remove_ctlreg_attr:
6326 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
6327 out_remove_stat_attr:
6328 sysfs_remove_bin_file(&shost->shost_dev.kobj,
6329 &sysfs_drvr_stat_data_attr);
6335 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
6336 * @vport: address of lpfc vport structure.
6339 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
6341 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6342 sysfs_remove_bin_file(&shost->shost_dev.kobj,
6343 &sysfs_drvr_stat_data_attr);
6344 /* Virtual ports do not need ctrl_reg and mbox */
6345 if (vport->port_type == LPFC_NPIV_PORT)
6347 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
6348 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
6352 * Dynamic FC Host Attributes Support
6356 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host
6357 * @shost: kernel scsi host pointer.
6360 lpfc_get_host_symbolic_name(struct Scsi_Host *shost)
6362 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
6364 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
6365 sizeof fc_host_symbolic_name(shost));
6369 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
6370 * @shost: kernel scsi host pointer.
6373 lpfc_get_host_port_id(struct Scsi_Host *shost)
6375 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6377 /* note: fc_myDID already in cpu endianness */
6378 fc_host_port_id(shost) = vport->fc_myDID;
6382 * lpfc_get_host_port_type - Set the value of the scsi host port type
6383 * @shost: kernel scsi host pointer.
6386 lpfc_get_host_port_type(struct Scsi_Host *shost)
6388 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6389 struct lpfc_hba *phba = vport->phba;
6391 spin_lock_irq(shost->host_lock);
6393 if (vport->port_type == LPFC_NPIV_PORT) {
6394 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
6395 } else if (lpfc_is_link_up(phba)) {
6396 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6397 if (vport->fc_flag & FC_PUBLIC_LOOP)
6398 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
6400 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
6402 if (vport->fc_flag & FC_FABRIC)
6403 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
6405 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
6408 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
6410 spin_unlock_irq(shost->host_lock);
6414 * lpfc_get_host_port_state - Set the value of the scsi host port state
6415 * @shost: kernel scsi host pointer.
6418 lpfc_get_host_port_state(struct Scsi_Host *shost)
6420 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6421 struct lpfc_hba *phba = vport->phba;
6423 spin_lock_irq(shost->host_lock);
6425 if (vport->fc_flag & FC_OFFLINE_MODE)
6426 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
6428 switch (phba->link_state) {
6429 case LPFC_LINK_UNKNOWN:
6430 case LPFC_LINK_DOWN:
6431 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
6435 case LPFC_HBA_READY:
6436 /* Links up, reports port state accordingly */
6437 if (vport->port_state < LPFC_VPORT_READY)
6438 fc_host_port_state(shost) =
6439 FC_PORTSTATE_BYPASSED;
6441 fc_host_port_state(shost) =
6442 FC_PORTSTATE_ONLINE;
6444 case LPFC_HBA_ERROR:
6445 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
6448 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
6453 spin_unlock_irq(shost->host_lock);
6457 * lpfc_get_host_speed - Set the value of the scsi host speed
6458 * @shost: kernel scsi host pointer.
6461 lpfc_get_host_speed(struct Scsi_Host *shost)
6463 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6464 struct lpfc_hba *phba = vport->phba;
6466 spin_lock_irq(shost->host_lock);
6468 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) {
6469 switch(phba->fc_linkspeed) {
6470 case LPFC_LINK_SPEED_1GHZ:
6471 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
6473 case LPFC_LINK_SPEED_2GHZ:
6474 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
6476 case LPFC_LINK_SPEED_4GHZ:
6477 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
6479 case LPFC_LINK_SPEED_8GHZ:
6480 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
6482 case LPFC_LINK_SPEED_10GHZ:
6483 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
6485 case LPFC_LINK_SPEED_16GHZ:
6486 fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
6488 case LPFC_LINK_SPEED_32GHZ:
6489 fc_host_speed(shost) = FC_PORTSPEED_32GBIT;
6491 case LPFC_LINK_SPEED_64GHZ:
6492 fc_host_speed(shost) = FC_PORTSPEED_64GBIT;
6494 case LPFC_LINK_SPEED_128GHZ:
6495 fc_host_speed(shost) = FC_PORTSPEED_128GBIT;
6498 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
6501 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) {
6502 switch (phba->fc_linkspeed) {
6503 case LPFC_ASYNC_LINK_SPEED_10GBPS:
6504 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
6506 case LPFC_ASYNC_LINK_SPEED_25GBPS:
6507 fc_host_speed(shost) = FC_PORTSPEED_25GBIT;
6509 case LPFC_ASYNC_LINK_SPEED_40GBPS:
6510 fc_host_speed(shost) = FC_PORTSPEED_40GBIT;
6512 case LPFC_ASYNC_LINK_SPEED_100GBPS:
6513 fc_host_speed(shost) = FC_PORTSPEED_100GBIT;
6516 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
6520 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
6522 spin_unlock_irq(shost->host_lock);
6526 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
6527 * @shost: kernel scsi host pointer.
6530 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
6532 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6533 struct lpfc_hba *phba = vport->phba;
6536 spin_lock_irq(shost->host_lock);
6538 if ((vport->port_state > LPFC_FLOGI) &&
6539 ((vport->fc_flag & FC_FABRIC) ||
6540 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
6541 (vport->fc_flag & FC_PUBLIC_LOOP))))
6542 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
6544 /* fabric is local port if there is no F/FL_Port */
6547 spin_unlock_irq(shost->host_lock);
6549 fc_host_fabric_name(shost) = node_name;
6553 * lpfc_get_stats - Return statistical information about the adapter
6554 * @shost: kernel scsi host pointer.
6557 * NULL on error for link down, no mbox pool, sli2 active,
6558 * management not allowed, memory allocation error, or mbox error.
6562 * address of the adapter host statistics
6564 static struct fc_host_statistics *
6565 lpfc_get_stats(struct Scsi_Host *shost)
6567 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6568 struct lpfc_hba *phba = vport->phba;
6569 struct lpfc_sli *psli = &phba->sli;
6570 struct fc_host_statistics *hs = &phba->link_stats;
6571 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
6572 LPFC_MBOXQ_t *pmboxq;
6577 * prevent udev from issuing mailbox commands until the port is
6580 if (phba->link_state < LPFC_LINK_DOWN ||
6581 !phba->mbox_mem_pool ||
6582 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
6585 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
6588 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6591 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
6593 pmb = &pmboxq->u.mb;
6594 pmb->mbxCommand = MBX_READ_STATUS;
6595 pmb->mbxOwner = OWN_HOST;
6596 pmboxq->ctx_buf = NULL;
6597 pmboxq->vport = vport;
6599 if (vport->fc_flag & FC_OFFLINE_MODE)
6600 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
6602 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
6604 if (rc != MBX_SUCCESS) {
6605 if (rc != MBX_TIMEOUT)
6606 mempool_free(pmboxq, phba->mbox_mem_pool);
6610 memset(hs, 0, sizeof (struct fc_host_statistics));
6612 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
6614 * The MBX_READ_STATUS returns tx_k_bytes which has to
6615 * converted to words
6617 hs->tx_words = (uint64_t)
6618 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt
6620 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
6621 hs->rx_words = (uint64_t)
6622 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt
6625 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
6626 pmb->mbxCommand = MBX_READ_LNK_STAT;
6627 pmb->mbxOwner = OWN_HOST;
6628 pmboxq->ctx_buf = NULL;
6629 pmboxq->vport = vport;
6631 if (vport->fc_flag & FC_OFFLINE_MODE)
6632 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
6634 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
6636 if (rc != MBX_SUCCESS) {
6637 if (rc != MBX_TIMEOUT)
6638 mempool_free(pmboxq, phba->mbox_mem_pool);
6642 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
6643 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
6644 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
6645 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
6646 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
6647 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
6648 hs->error_frames = pmb->un.varRdLnk.crcCnt;
6650 hs->link_failure_count -= lso->link_failure_count;
6651 hs->loss_of_sync_count -= lso->loss_of_sync_count;
6652 hs->loss_of_signal_count -= lso->loss_of_signal_count;
6653 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
6654 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
6655 hs->invalid_crc_count -= lso->invalid_crc_count;
6656 hs->error_frames -= lso->error_frames;
6658 if (phba->hba_flag & HBA_FCOE_MODE) {
6660 hs->nos_count = (phba->link_events >> 1);
6661 hs->nos_count -= lso->link_events;
6662 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6663 hs->lip_count = (phba->fc_eventTag >> 1);
6664 hs->lip_count -= lso->link_events;
6668 hs->nos_count = (phba->fc_eventTag >> 1);
6669 hs->nos_count -= lso->link_events;
6672 hs->dumped_frames = -1;
6674 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start;
6676 mempool_free(pmboxq, phba->mbox_mem_pool);
6682 * lpfc_reset_stats - Copy the adapter link stats information
6683 * @shost: kernel scsi host pointer.
6686 lpfc_reset_stats(struct Scsi_Host *shost)
6688 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6689 struct lpfc_hba *phba = vport->phba;
6690 struct lpfc_sli *psli = &phba->sli;
6691 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
6692 LPFC_MBOXQ_t *pmboxq;
6696 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
6699 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6702 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
6704 pmb = &pmboxq->u.mb;
6705 pmb->mbxCommand = MBX_READ_STATUS;
6706 pmb->mbxOwner = OWN_HOST;
6707 pmb->un.varWords[0] = 0x1; /* reset request */
6708 pmboxq->ctx_buf = NULL;
6709 pmboxq->vport = vport;
6711 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
6712 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
6713 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
6715 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
6717 if (rc != MBX_SUCCESS) {
6718 if (rc != MBX_TIMEOUT)
6719 mempool_free(pmboxq, phba->mbox_mem_pool);
6723 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
6724 pmb->mbxCommand = MBX_READ_LNK_STAT;
6725 pmb->mbxOwner = OWN_HOST;
6726 pmboxq->ctx_buf = NULL;
6727 pmboxq->vport = vport;
6729 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
6730 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
6731 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
6733 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
6735 if (rc != MBX_SUCCESS) {
6736 if (rc != MBX_TIMEOUT)
6737 mempool_free( pmboxq, phba->mbox_mem_pool);
6741 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
6742 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
6743 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
6744 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
6745 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
6746 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
6747 lso->error_frames = pmb->un.varRdLnk.crcCnt;
6748 if (phba->hba_flag & HBA_FCOE_MODE)
6749 lso->link_events = (phba->link_events >> 1);
6751 lso->link_events = (phba->fc_eventTag >> 1);
6753 psli->stats_start = ktime_get_seconds();
6755 mempool_free(pmboxq, phba->mbox_mem_pool);
6761 * The LPFC driver treats linkdown handling as target loss events so there
6762 * are no sysfs handlers for link_down_tmo.
6766 * lpfc_get_node_by_target - Return the nodelist for a target
6767 * @starget: kernel scsi target pointer.
6770 * address of the node list if found
6771 * NULL target not found
6773 static struct lpfc_nodelist *
6774 lpfc_get_node_by_target(struct scsi_target *starget)
6776 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
6777 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6778 struct lpfc_nodelist *ndlp;
6780 spin_lock_irq(shost->host_lock);
6781 /* Search for this, mapped, target ID */
6782 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
6783 if (NLP_CHK_NODE_ACT(ndlp) &&
6784 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
6785 starget->id == ndlp->nlp_sid) {
6786 spin_unlock_irq(shost->host_lock);
6790 spin_unlock_irq(shost->host_lock);
6795 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
6796 * @starget: kernel scsi target pointer.
6799 lpfc_get_starget_port_id(struct scsi_target *starget)
6801 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
6803 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
6807 * lpfc_get_starget_node_name - Set the target node name
6808 * @starget: kernel scsi target pointer.
6810 * Description: Set the target node name to the ndlp node name wwn or zero.
6813 lpfc_get_starget_node_name(struct scsi_target *starget)
6815 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
6817 fc_starget_node_name(starget) =
6818 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
6822 * lpfc_get_starget_port_name - Set the target port name
6823 * @starget: kernel scsi target pointer.
6825 * Description: set the target port name to the ndlp port name wwn or zero.
6828 lpfc_get_starget_port_name(struct scsi_target *starget)
6830 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
6832 fc_starget_port_name(starget) =
6833 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
6837 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
6838 * @rport: fc rport address.
6839 * @timeout: new value for dev loss tmo.
6842 * If timeout is non zero set the dev_loss_tmo to timeout, else set
6843 * dev_loss_tmo to one.
6846 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
6849 rport->dev_loss_tmo = timeout;
6851 rport->dev_loss_tmo = 1;
6855 * lpfc_rport_show_function - Return rport target information
6858 * Macro that uses field to generate a function with the name lpfc_show_rport_
6860 * lpfc_show_rport_##field: returns the bytes formatted in buf
6861 * @cdev: class converted to an fc_rport.
6862 * @buf: on return contains the target_field or zero.
6864 * Returns: size of formatted string.
6866 #define lpfc_rport_show_function(field, format_string, sz, cast) \
6868 lpfc_show_rport_##field (struct device *dev, \
6869 struct device_attribute *attr, \
6872 struct fc_rport *rport = transport_class_to_rport(dev); \
6873 struct lpfc_rport_data *rdata = rport->hostdata; \
6874 return scnprintf(buf, sz, format_string, \
6875 (rdata->target) ? cast rdata->target->field : 0); \
6878 #define lpfc_rport_rd_attr(field, format_string, sz) \
6879 lpfc_rport_show_function(field, format_string, sz, ) \
6880 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
6883 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
6884 * @fc_vport: The fc_vport who's symbolic name has been changed.
6887 * This function is called by the transport after the @fc_vport's symbolic name
6888 * has been changed. This function re-registers the symbolic name with the
6889 * switch to propagate the change into the fabric if the vport is active.
6892 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
6894 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
6896 if (vport->port_state == LPFC_VPORT_READY)
6897 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
6901 * lpfc_hba_log_verbose_init - Set hba's log verbose level
6902 * @phba: Pointer to lpfc_hba struct.
6904 * This function is called by the lpfc_get_cfgparam() routine to set the
6905 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
6906 * log message according to the module's lpfc_log_verbose parameter setting
6907 * before hba port or vport created.
6910 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
6912 phba->cfg_log_verbose = verbose;
6915 struct fc_function_template lpfc_transport_functions = {
6916 /* fixed attributes the driver supports */
6917 .show_host_node_name = 1,
6918 .show_host_port_name = 1,
6919 .show_host_supported_classes = 1,
6920 .show_host_supported_fc4s = 1,
6921 .show_host_supported_speeds = 1,
6922 .show_host_maxframe_size = 1,
6924 .get_host_symbolic_name = lpfc_get_host_symbolic_name,
6925 .show_host_symbolic_name = 1,
6927 /* dynamic attributes the driver supports */
6928 .get_host_port_id = lpfc_get_host_port_id,
6929 .show_host_port_id = 1,
6931 .get_host_port_type = lpfc_get_host_port_type,
6932 .show_host_port_type = 1,
6934 .get_host_port_state = lpfc_get_host_port_state,
6935 .show_host_port_state = 1,
6937 /* active_fc4s is shown but doesn't change (thus no get function) */
6938 .show_host_active_fc4s = 1,
6940 .get_host_speed = lpfc_get_host_speed,
6941 .show_host_speed = 1,
6943 .get_host_fabric_name = lpfc_get_host_fabric_name,
6944 .show_host_fabric_name = 1,
6947 * The LPFC driver treats linkdown handling as target loss events
6948 * so there are no sysfs handlers for link_down_tmo.
6951 .get_fc_host_stats = lpfc_get_stats,
6952 .reset_fc_host_stats = lpfc_reset_stats,
6954 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
6955 .show_rport_maxframe_size = 1,
6956 .show_rport_supported_classes = 1,
6958 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
6959 .show_rport_dev_loss_tmo = 1,
6961 .get_starget_port_id = lpfc_get_starget_port_id,
6962 .show_starget_port_id = 1,
6964 .get_starget_node_name = lpfc_get_starget_node_name,
6965 .show_starget_node_name = 1,
6967 .get_starget_port_name = lpfc_get_starget_port_name,
6968 .show_starget_port_name = 1,
6970 .issue_fc_host_lip = lpfc_issue_lip,
6971 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
6972 .terminate_rport_io = lpfc_terminate_rport_io,
6974 .dd_fcvport_size = sizeof(struct lpfc_vport *),
6976 .vport_disable = lpfc_vport_disable,
6978 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
6980 .bsg_request = lpfc_bsg_request,
6981 .bsg_timeout = lpfc_bsg_timeout,
6984 struct fc_function_template lpfc_vport_transport_functions = {
6985 /* fixed attributes the driver supports */
6986 .show_host_node_name = 1,
6987 .show_host_port_name = 1,
6988 .show_host_supported_classes = 1,
6989 .show_host_supported_fc4s = 1,
6990 .show_host_supported_speeds = 1,
6991 .show_host_maxframe_size = 1,
6993 .get_host_symbolic_name = lpfc_get_host_symbolic_name,
6994 .show_host_symbolic_name = 1,
6996 /* dynamic attributes the driver supports */
6997 .get_host_port_id = lpfc_get_host_port_id,
6998 .show_host_port_id = 1,
7000 .get_host_port_type = lpfc_get_host_port_type,
7001 .show_host_port_type = 1,
7003 .get_host_port_state = lpfc_get_host_port_state,
7004 .show_host_port_state = 1,
7006 /* active_fc4s is shown but doesn't change (thus no get function) */
7007 .show_host_active_fc4s = 1,
7009 .get_host_speed = lpfc_get_host_speed,
7010 .show_host_speed = 1,
7012 .get_host_fabric_name = lpfc_get_host_fabric_name,
7013 .show_host_fabric_name = 1,
7016 * The LPFC driver treats linkdown handling as target loss events
7017 * so there are no sysfs handlers for link_down_tmo.
7020 .get_fc_host_stats = lpfc_get_stats,
7021 .reset_fc_host_stats = lpfc_reset_stats,
7023 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
7024 .show_rport_maxframe_size = 1,
7025 .show_rport_supported_classes = 1,
7027 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
7028 .show_rport_dev_loss_tmo = 1,
7030 .get_starget_port_id = lpfc_get_starget_port_id,
7031 .show_starget_port_id = 1,
7033 .get_starget_node_name = lpfc_get_starget_node_name,
7034 .show_starget_node_name = 1,
7036 .get_starget_port_name = lpfc_get_starget_port_name,
7037 .show_starget_port_name = 1,
7039 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
7040 .terminate_rport_io = lpfc_terminate_rport_io,
7042 .vport_disable = lpfc_vport_disable,
7044 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
7048 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
7049 * @phba: lpfc_hba pointer.
7052 lpfc_get_cfgparam(struct lpfc_hba *phba)
7054 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched);
7055 lpfc_ns_query_init(phba, lpfc_ns_query);
7056 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset);
7057 lpfc_cr_delay_init(phba, lpfc_cr_delay);
7058 lpfc_cr_count_init(phba, lpfc_cr_count);
7059 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
7060 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
7061 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
7062 lpfc_ack0_init(phba, lpfc_ack0);
7063 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing);
7064 lpfc_topology_init(phba, lpfc_topology);
7065 lpfc_link_speed_init(phba, lpfc_link_speed);
7066 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
7067 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo);
7068 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
7069 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
7070 lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
7071 lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
7072 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN);
7073 lpfc_use_msi_init(phba, lpfc_use_msi);
7074 lpfc_nvme_oas_init(phba, lpfc_nvme_oas);
7075 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd);
7076 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
7077 lpfc_force_rscn_init(phba, lpfc_force_rscn);
7078 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold);
7079 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit);
7080 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map);
7081 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
7082 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
7084 lpfc_EnableXLane_init(phba, lpfc_EnableXLane);
7085 if (phba->sli_rev != LPFC_SLI_REV4)
7086 phba->cfg_EnableXLane = 0;
7087 lpfc_XLanePriority_init(phba, lpfc_XLanePriority);
7089 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t)));
7090 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t)));
7091 phba->cfg_oas_lun_state = 0;
7092 phba->cfg_oas_lun_status = 0;
7093 phba->cfg_oas_flags = 0;
7094 phba->cfg_oas_priority = 0;
7095 lpfc_enable_bg_init(phba, lpfc_enable_bg);
7096 lpfc_prot_mask_init(phba, lpfc_prot_mask);
7097 lpfc_prot_guard_init(phba, lpfc_prot_guard);
7098 if (phba->sli_rev == LPFC_SLI_REV4)
7101 phba->cfg_poll = lpfc_poll;
7103 if (phba->cfg_enable_bg)
7104 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
7106 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp);
7108 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type);
7109 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq);
7110 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post);
7112 /* Initialize first burst. Target vs Initiator are different. */
7113 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb);
7114 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size);
7115 lpfc_hdw_queue_init(phba, lpfc_hdw_queue);
7116 lpfc_irq_chann_init(phba, lpfc_irq_chann);
7117 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr);
7118 lpfc_enable_dpp_init(phba, lpfc_enable_dpp);
7120 if (phba->sli_rev != LPFC_SLI_REV4) {
7121 /* NVME only supported on SLI4 */
7122 phba->nvmet_support = 0;
7123 phba->cfg_nvmet_mrq = 0;
7124 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
7125 phba->cfg_enable_bbcr = 0;
7126 phba->cfg_xri_rebalancing = 0;
7128 /* We MUST have FCP support */
7129 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
7130 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP;
7133 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1;
7135 phba->cfg_enable_pbde = 0;
7137 /* A value of 0 means use the number of CPUs found in the system */
7138 if (phba->cfg_hdw_queue == 0)
7139 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu;
7140 if (phba->cfg_irq_chann == 0)
7141 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu;
7142 if (phba->cfg_irq_chann > phba->cfg_hdw_queue)
7143 phba->cfg_irq_chann = phba->cfg_hdw_queue;
7145 phba->cfg_soft_wwnn = 0L;
7146 phba->cfg_soft_wwpn = 0L;
7147 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
7148 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
7149 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
7150 lpfc_aer_support_init(phba, lpfc_aer_support);
7151 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
7152 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade);
7153 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
7154 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
7155 lpfc_delay_discovery_init(phba, lpfc_delay_discovery);
7156 lpfc_sli_mode_init(phba, lpfc_sli_mode);
7157 phba->cfg_enable_dss = 1;
7158 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags);
7159 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize);
7160 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level);
7161 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func);
7164 /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
7165 * accommodate 512K and 1M IOs in a single nvme buf and supply
7166 * enough NVME LS iocb buffers for larger connectivity counts.
7168 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7169 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
7170 phba->cfg_iocb_cnt = 5;
7177 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on
7178 * dependencies between protocols and roles.
7179 * @phba: lpfc_hba pointer.
7182 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba)
7184 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu)
7185 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu;
7186 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu)
7187 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu;
7188 if (phba->cfg_irq_chann > phba->cfg_hdw_queue)
7189 phba->cfg_irq_chann = phba->cfg_hdw_queue;
7191 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
7192 phba->nvmet_support) {
7193 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP;
7195 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
7196 "6013 %s x%x fb_size x%x, fb_max x%x\n",
7197 "NVME Target PRLI ACC enable_fb ",
7198 phba->cfg_nvme_enable_fb,
7199 phba->cfg_nvmet_fb_size,
7200 LPFC_NVMET_FB_SZ_MAX);
7202 if (phba->cfg_nvme_enable_fb == 0)
7203 phba->cfg_nvmet_fb_size = 0;
7205 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX)
7206 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX;
7209 if (!phba->cfg_nvmet_mrq)
7210 phba->cfg_nvmet_mrq = phba->cfg_irq_chann;
7212 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */
7213 if (phba->cfg_nvmet_mrq > phba->cfg_irq_chann) {
7214 phba->cfg_nvmet_mrq = phba->cfg_irq_chann;
7215 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
7216 "6018 Adjust lpfc_nvmet_mrq to %d\n",
7217 phba->cfg_nvmet_mrq);
7219 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
7220 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
7223 /* Not NVME Target mode. Turn off Target parameters. */
7224 phba->nvmet_support = 0;
7225 phba->cfg_nvmet_mrq = 0;
7226 phba->cfg_nvmet_fb_size = 0;
7231 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
7232 * @vport: lpfc_vport pointer.
7235 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
7237 lpfc_log_verbose_init(vport, lpfc_log_verbose);
7238 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
7239 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
7240 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
7241 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
7242 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
7243 lpfc_restrict_login_init(vport, lpfc_restrict_login);
7244 lpfc_fcp_class_init(vport, lpfc_fcp_class);
7245 lpfc_use_adisc_init(vport, lpfc_use_adisc);
7246 lpfc_first_burst_size_init(vport, lpfc_first_burst_size);
7247 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
7248 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
7249 lpfc_max_luns_init(vport, lpfc_max_luns);
7250 lpfc_scan_down_init(vport, lpfc_scan_down);
7251 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);