1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2021 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>
43 #include "lpfc_sli4.h"
45 #include "lpfc_disc.h"
47 #include "lpfc_scsi.h"
48 #include "lpfc_nvme.h"
49 #include "lpfc_logmsg.h"
50 #include "lpfc_version.h"
51 #include "lpfc_compat.h"
52 #include "lpfc_crtn.h"
53 #include "lpfc_vport.h"
54 #include "lpfc_attr.h"
56 #define LPFC_DEF_DEVLOSS_TMO 30
57 #define LPFC_MIN_DEVLOSS_TMO 1
58 #define LPFC_MAX_DEVLOSS_TMO 255
60 #define LPFC_MAX_INFO_TMP_LEN 100
61 #define LPFC_INFO_MORE_STR "\nCould be more info...\n"
63 * Write key size should be multiple of 4. If write key is changed
64 * make sure that library write key is also changed.
66 #define LPFC_REG_WRITE_KEY_SIZE 4
67 #define LPFC_REG_WRITE_KEY "EMLX"
69 const char *const trunk_errmsg[] = { /* map errcode */
70 "", /* There is no such error code at index 0*/
71 "link negotiated speed does not match existing"
72 " trunk - link was \"low\" speed",
73 "link negotiated speed does not match"
74 " existing trunk - link was \"middle\" speed",
75 "link negotiated speed does not match existing"
76 " trunk - link was \"high\" speed",
77 "Attached to non-trunking port - F_Port",
78 "Attached to non-trunking port - N_Port",
79 "FLOGI response timeout",
80 "non-FLOGI frame received",
81 "Invalid FLOGI response",
82 "Trunking initialization protocol",
83 "Trunk peer device mismatch",
87 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
88 * @incr: integer to convert.
89 * @hdw: ascii string holding converted integer plus a string terminator.
92 * JEDEC Joint Electron Device Engineering Council.
93 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
94 * character string. The string is then terminated with a NULL in byte 9.
95 * Hex 0-9 becomes ascii '0' to '9'.
96 * Hex a-f becomes ascii '=' to 'B' capital B.
99 * Coded for 32 bit integers only.
102 lpfc_jedec_to_ascii(int incr, char hdw[])
105 for (i = 0; i < 8; i++) {
108 hdw[7 - i] = 0x30 + j;
110 hdw[7 - i] = 0x61 + j - 10;
118 lpfc_cmf_info_show(struct device *dev, struct device_attribute *attr,
121 struct Scsi_Host *shost = class_to_shost(dev);
122 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
123 struct lpfc_hba *phba = vport->phba;
124 struct lpfc_cgn_info *cp = NULL;
125 struct lpfc_cgn_stat *cgs;
129 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0};
132 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
134 scnprintf(tmp, sizeof(tmp),
135 "Congestion Mgmt Info: E2Eattr %d Ver %d "
137 phba->sli4_hba.pc_sli4_params.mi_ver,
138 cp ? cp->cgn_info_version : 0,
139 phba->sli4_hba.pc_sli4_params.cmf, phba->cmf_timer_cnt);
141 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
144 if (!phba->sli4_hba.pc_sli4_params.cmf)
147 switch (phba->cgn_init_reg_signal) {
148 case EDC_CG_SIG_WARN_ONLY:
149 scnprintf(tmp, sizeof(tmp),
150 "Register: Init: Signal:WARN ");
152 case EDC_CG_SIG_WARN_ALARM:
153 scnprintf(tmp, sizeof(tmp),
154 "Register: Init: Signal:WARN|ALARM ");
157 scnprintf(tmp, sizeof(tmp),
158 "Register: Init: Signal:NONE ");
161 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
164 switch (phba->cgn_init_reg_fpin) {
165 case LPFC_CGN_FPIN_WARN:
166 scnprintf(tmp, sizeof(tmp),
169 case LPFC_CGN_FPIN_ALARM:
170 scnprintf(tmp, sizeof(tmp),
173 case LPFC_CGN_FPIN_BOTH:
174 scnprintf(tmp, sizeof(tmp),
175 "FPIN:WARN|ALARM\n");
178 scnprintf(tmp, sizeof(tmp),
182 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
185 switch (phba->cgn_reg_signal) {
186 case EDC_CG_SIG_WARN_ONLY:
187 scnprintf(tmp, sizeof(tmp),
188 " Current: Signal:WARN ");
190 case EDC_CG_SIG_WARN_ALARM:
191 scnprintf(tmp, sizeof(tmp),
192 " Current: Signal:WARN|ALARM ");
195 scnprintf(tmp, sizeof(tmp),
196 " Current: Signal:NONE ");
199 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
202 switch (phba->cgn_reg_fpin) {
203 case LPFC_CGN_FPIN_WARN:
204 scnprintf(tmp, sizeof(tmp),
205 "FPIN:WARN ACQEcnt:%d\n", phba->cgn_acqe_cnt);
207 case LPFC_CGN_FPIN_ALARM:
208 scnprintf(tmp, sizeof(tmp),
209 "FPIN:ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt);
211 case LPFC_CGN_FPIN_BOTH:
212 scnprintf(tmp, sizeof(tmp),
213 "FPIN:WARN|ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt);
216 scnprintf(tmp, sizeof(tmp),
217 "FPIN:NONE ACQEcnt:%d\n", phba->cgn_acqe_cnt);
220 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
223 if (phba->cmf_active_mode != phba->cgn_p.cgn_param_mode) {
224 switch (phba->cmf_active_mode) {
226 scnprintf(tmp, sizeof(tmp), "Active: Mode:Off\n");
228 case LPFC_CFG_MANAGED:
229 scnprintf(tmp, sizeof(tmp), "Active: Mode:Managed\n");
231 case LPFC_CFG_MONITOR:
232 scnprintf(tmp, sizeof(tmp), "Active: Mode:Monitor\n");
235 scnprintf(tmp, sizeof(tmp), "Active: Mode:Unknown\n");
237 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
241 switch (phba->cgn_p.cgn_param_mode) {
243 scnprintf(tmp, sizeof(tmp), "Config: Mode:Off ");
245 case LPFC_CFG_MANAGED:
246 scnprintf(tmp, sizeof(tmp), "Config: Mode:Managed ");
248 case LPFC_CFG_MONITOR:
249 scnprintf(tmp, sizeof(tmp), "Config: Mode:Monitor ");
252 scnprintf(tmp, sizeof(tmp), "Config: Mode:Unknown ");
254 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
259 for_each_present_cpu(cpu) {
260 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
261 total += atomic64_read(&cgs->total_bytes);
262 rcv += atomic64_read(&cgs->rcv_bytes);
265 scnprintf(tmp, sizeof(tmp),
266 "IObusy:%d Info:%d Bytes: Rcv:x%llx Total:x%llx\n",
267 atomic_read(&phba->cmf_busy),
268 phba->cmf_active_info, rcv, total);
269 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
272 scnprintf(tmp, sizeof(tmp),
273 "Port_speed:%d Link_byte_cnt:%ld "
274 "Max_byte_per_interval:%ld\n",
275 lpfc_sli_port_speed_get(phba),
276 (unsigned long)phba->cmf_link_byte_count,
277 (unsigned long)phba->cmf_max_bytes_per_interval);
278 strlcat(buf, tmp, PAGE_SIZE);
281 len = strnlen(buf, PAGE_SIZE);
283 if (unlikely(len >= (PAGE_SIZE - 1))) {
284 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
285 "6312 Catching potential buffer "
286 "overflow > PAGE_SIZE = %lu bytes\n",
288 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR),
289 LPFC_INFO_MORE_STR, sizeof(LPFC_INFO_MORE_STR) + 1);
295 * lpfc_drvr_version_show - Return the Emulex driver string with version number
296 * @dev: class unused variable.
297 * @attr: device attribute, not used.
298 * @buf: on return contains the module description text.
300 * Returns: size of formatted string.
303 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
306 return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
310 * lpfc_enable_fip_show - Return the fip mode of the HBA
311 * @dev: class unused variable.
312 * @attr: device attribute, not used.
313 * @buf: on return contains the module description text.
315 * Returns: size of formatted string.
318 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
321 struct Scsi_Host *shost = class_to_shost(dev);
322 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
323 struct lpfc_hba *phba = vport->phba;
325 if (phba->hba_flag & HBA_FIP_SUPPORT)
326 return scnprintf(buf, PAGE_SIZE, "1\n");
328 return scnprintf(buf, PAGE_SIZE, "0\n");
332 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
335 struct Scsi_Host *shost = class_to_shost(dev);
336 struct lpfc_vport *vport = shost_priv(shost);
337 struct lpfc_hba *phba = vport->phba;
338 struct lpfc_nvmet_tgtport *tgtp;
339 struct nvme_fc_local_port *localport;
340 struct lpfc_nvme_lport *lport;
341 struct lpfc_nvme_rport *rport;
342 struct lpfc_nodelist *ndlp;
343 struct nvme_fc_remote_port *nrport;
344 struct lpfc_fc4_ctrl_stat *cstat;
345 uint64_t data1, data2, data3;
346 uint64_t totin, totout, tot;
350 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0};
352 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
353 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n");
356 if (phba->nvmet_support) {
357 if (!phba->targetport) {
358 len = scnprintf(buf, PAGE_SIZE,
359 "NVME Target: x%llx is not allocated\n",
360 wwn_to_u64(vport->fc_portname.u.wwn));
363 /* Port state is only one of two values for now. */
364 if (phba->targetport->port_id)
365 statep = "REGISTERED";
368 scnprintf(tmp, sizeof(tmp),
369 "NVME Target Enabled State %s\n",
371 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
374 scnprintf(tmp, sizeof(tmp),
375 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n",
378 wwn_to_u64(vport->fc_portname.u.wwn),
379 wwn_to_u64(vport->fc_nodename.u.wwn),
380 phba->targetport->port_id);
381 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
384 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE)
388 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
389 scnprintf(tmp, sizeof(tmp),
390 "LS: Rcv %08x Drop %08x Abort %08x\n",
391 atomic_read(&tgtp->rcv_ls_req_in),
392 atomic_read(&tgtp->rcv_ls_req_drop),
393 atomic_read(&tgtp->xmt_ls_abort));
394 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
397 if (atomic_read(&tgtp->rcv_ls_req_in) !=
398 atomic_read(&tgtp->rcv_ls_req_out)) {
399 scnprintf(tmp, sizeof(tmp),
400 "Rcv LS: in %08x != out %08x\n",
401 atomic_read(&tgtp->rcv_ls_req_in),
402 atomic_read(&tgtp->rcv_ls_req_out));
403 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
407 scnprintf(tmp, sizeof(tmp),
408 "LS: Xmt %08x Drop %08x Cmpl %08x\n",
409 atomic_read(&tgtp->xmt_ls_rsp),
410 atomic_read(&tgtp->xmt_ls_drop),
411 atomic_read(&tgtp->xmt_ls_rsp_cmpl));
412 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
415 scnprintf(tmp, sizeof(tmp),
416 "LS: RSP Abort %08x xb %08x Err %08x\n",
417 atomic_read(&tgtp->xmt_ls_rsp_aborted),
418 atomic_read(&tgtp->xmt_ls_rsp_xb_set),
419 atomic_read(&tgtp->xmt_ls_rsp_error));
420 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
423 scnprintf(tmp, sizeof(tmp),
424 "FCP: Rcv %08x Defer %08x Release %08x "
426 atomic_read(&tgtp->rcv_fcp_cmd_in),
427 atomic_read(&tgtp->rcv_fcp_cmd_defer),
428 atomic_read(&tgtp->xmt_fcp_release),
429 atomic_read(&tgtp->rcv_fcp_cmd_drop));
430 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
433 if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
434 atomic_read(&tgtp->rcv_fcp_cmd_out)) {
435 scnprintf(tmp, sizeof(tmp),
436 "Rcv FCP: in %08x != out %08x\n",
437 atomic_read(&tgtp->rcv_fcp_cmd_in),
438 atomic_read(&tgtp->rcv_fcp_cmd_out));
439 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
443 scnprintf(tmp, sizeof(tmp),
444 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x "
446 atomic_read(&tgtp->xmt_fcp_read),
447 atomic_read(&tgtp->xmt_fcp_read_rsp),
448 atomic_read(&tgtp->xmt_fcp_write),
449 atomic_read(&tgtp->xmt_fcp_rsp),
450 atomic_read(&tgtp->xmt_fcp_drop));
451 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
454 scnprintf(tmp, sizeof(tmp),
455 "FCP Rsp Cmpl: %08x err %08x drop %08x\n",
456 atomic_read(&tgtp->xmt_fcp_rsp_cmpl),
457 atomic_read(&tgtp->xmt_fcp_rsp_error),
458 atomic_read(&tgtp->xmt_fcp_rsp_drop));
459 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
462 scnprintf(tmp, sizeof(tmp),
463 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n",
464 atomic_read(&tgtp->xmt_fcp_rsp_aborted),
465 atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
466 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
467 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
470 scnprintf(tmp, sizeof(tmp),
471 "ABORT: Xmt %08x Cmpl %08x\n",
472 atomic_read(&tgtp->xmt_fcp_abort),
473 atomic_read(&tgtp->xmt_fcp_abort_cmpl));
474 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
477 scnprintf(tmp, sizeof(tmp),
478 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n",
479 atomic_read(&tgtp->xmt_abort_sol),
480 atomic_read(&tgtp->xmt_abort_unsol),
481 atomic_read(&tgtp->xmt_abort_rsp),
482 atomic_read(&tgtp->xmt_abort_rsp_error));
483 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
486 scnprintf(tmp, sizeof(tmp),
487 "DELAY: ctx %08x fod %08x wqfull %08x\n",
488 atomic_read(&tgtp->defer_ctx),
489 atomic_read(&tgtp->defer_fod),
490 atomic_read(&tgtp->defer_wqfull));
491 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
494 /* Calculate outstanding IOs */
495 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
496 tot += atomic_read(&tgtp->xmt_fcp_release);
497 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
499 scnprintf(tmp, sizeof(tmp),
500 "IO_CTX: %08x WAIT: cur %08x tot %08x\n"
501 "CTX Outstanding %08llx\n\n",
502 phba->sli4_hba.nvmet_xri_cnt,
503 phba->sli4_hba.nvmet_io_wait_cnt,
504 phba->sli4_hba.nvmet_io_wait_total,
506 strlcat(buf, tmp, PAGE_SIZE);
510 localport = vport->localport;
512 len = scnprintf(buf, PAGE_SIZE,
513 "NVME Initiator x%llx is not allocated\n",
514 wwn_to_u64(vport->fc_portname.u.wwn));
517 lport = (struct lpfc_nvme_lport *)localport->private;
518 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE)
521 scnprintf(tmp, sizeof(tmp),
522 "XRI Dist lpfc%d Total %d IO %d ELS %d\n",
524 phba->sli4_hba.max_cfg_param.max_xri,
525 phba->sli4_hba.io_xri_max,
526 lpfc_sli4_get_els_iocb_cnt(phba));
527 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
530 /* Port state is only one of two values for now. */
531 if (localport->port_id)
536 scnprintf(tmp, sizeof(tmp),
537 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n",
540 wwn_to_u64(vport->fc_portname.u.wwn),
541 wwn_to_u64(vport->fc_nodename.u.wwn),
542 localport->port_id, statep);
543 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
546 spin_lock_irq(shost->host_lock);
548 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
550 spin_lock(&ndlp->lock);
551 rport = lpfc_ndlp_get_nrport(ndlp);
553 nrport = rport->remoteport;
554 spin_unlock(&ndlp->lock);
558 /* Port state is only one of two values for now. */
559 switch (nrport->port_state) {
560 case FC_OBJSTATE_ONLINE:
563 case FC_OBJSTATE_UNKNOWN:
567 statep = "UNSUPPORTED";
571 /* Tab in to show lport ownership. */
572 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE)
573 goto unlock_buf_done;
574 if (phba->brd_no >= 10) {
575 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE)
576 goto unlock_buf_done;
579 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ",
581 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
582 goto unlock_buf_done;
584 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ",
586 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
587 goto unlock_buf_done;
589 scnprintf(tmp, sizeof(tmp), "DID x%06x ",
591 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
592 goto unlock_buf_done;
594 /* An NVME rport can have multiple roles. */
595 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) {
596 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE)
597 goto unlock_buf_done;
599 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) {
600 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE)
601 goto unlock_buf_done;
603 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) {
604 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE)
605 goto unlock_buf_done;
607 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
608 FC_PORT_ROLE_NVME_TARGET |
609 FC_PORT_ROLE_NVME_DISCOVERY)) {
610 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x",
612 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
613 goto unlock_buf_done;
616 scnprintf(tmp, sizeof(tmp), "%s\n", statep);
617 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
618 goto unlock_buf_done;
620 spin_unlock_irq(shost->host_lock);
625 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE)
628 scnprintf(tmp, sizeof(tmp),
629 "LS: Xmt %010x Cmpl %010x Abort %08x\n",
630 atomic_read(&lport->fc4NvmeLsRequests),
631 atomic_read(&lport->fc4NvmeLsCmpls),
632 atomic_read(&lport->xmt_ls_abort));
633 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
636 scnprintf(tmp, sizeof(tmp),
637 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n",
638 atomic_read(&lport->xmt_ls_err),
639 atomic_read(&lport->cmpl_ls_xb),
640 atomic_read(&lport->cmpl_ls_err));
641 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
646 for (i = 0; i < phba->cfg_hdw_queue; i++) {
647 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat;
648 tot = cstat->io_cmpls;
650 data1 = cstat->input_requests;
651 data2 = cstat->output_requests;
652 data3 = cstat->control_requests;
653 totout += (data1 + data2 + data3);
655 scnprintf(tmp, sizeof(tmp),
656 "Total FCP Cmpl %016llx Issue %016llx "
658 totin, totout, totout - totin);
659 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
662 scnprintf(tmp, sizeof(tmp),
663 "\tabort %08x noxri %08x nondlp %08x qdepth %08x "
664 "wqerr %08x err %08x\n",
665 atomic_read(&lport->xmt_fcp_abort),
666 atomic_read(&lport->xmt_fcp_noxri),
667 atomic_read(&lport->xmt_fcp_bad_ndlp),
668 atomic_read(&lport->xmt_fcp_qdepth),
669 atomic_read(&lport->xmt_fcp_wqerr),
670 atomic_read(&lport->xmt_fcp_err));
671 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
674 scnprintf(tmp, sizeof(tmp),
675 "FCP CMPL: xb %08x Err %08x\n",
676 atomic_read(&lport->cmpl_fcp_xb),
677 atomic_read(&lport->cmpl_fcp_err));
678 strlcat(buf, tmp, PAGE_SIZE);
680 /* host_lock is already unlocked. */
684 spin_unlock_irq(shost->host_lock);
687 len = strnlen(buf, PAGE_SIZE);
689 if (unlikely(len >= (PAGE_SIZE - 1))) {
690 lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
691 "6314 Catching potential buffer "
692 "overflow > PAGE_SIZE = %lu bytes\n",
694 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR),
696 sizeof(LPFC_INFO_MORE_STR) + 1);
703 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr,
706 struct Scsi_Host *shost = class_to_shost(dev);
707 struct lpfc_vport *vport = shost_priv(shost);
708 struct lpfc_hba *phba = vport->phba;
710 struct lpfc_fc4_ctrl_stat *cstat;
711 u64 data1, data2, data3;
712 u64 tot, totin, totout;
714 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0};
716 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ||
717 (phba->sli_rev != LPFC_SLI_REV4))
720 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n");
724 for (i = 0; i < phba->cfg_hdw_queue; i++) {
725 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat;
726 tot = cstat->io_cmpls;
728 data1 = cstat->input_requests;
729 data2 = cstat->output_requests;
730 data3 = cstat->control_requests;
731 totout += (data1 + data2 + data3);
733 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx "
734 "IO %016llx ", i, data1, data2, data3);
735 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
738 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n",
739 tot, ((data1 + data2 + data3) - tot));
740 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
743 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx "
744 "OutIO %016llx\n", totin, totout, totout - totin);
745 strlcat(buf, tmp, PAGE_SIZE);
748 len = strnlen(buf, PAGE_SIZE);
754 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
757 struct Scsi_Host *shost = class_to_shost(dev);
758 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
759 struct lpfc_hba *phba = vport->phba;
761 if (phba->cfg_enable_bg) {
762 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
763 return scnprintf(buf, PAGE_SIZE,
764 "BlockGuard Enabled\n");
766 return scnprintf(buf, PAGE_SIZE,
767 "BlockGuard Not Supported\n");
769 return scnprintf(buf, PAGE_SIZE,
770 "BlockGuard Disabled\n");
774 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
777 struct Scsi_Host *shost = class_to_shost(dev);
778 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
779 struct lpfc_hba *phba = vport->phba;
781 return scnprintf(buf, PAGE_SIZE, "%llu\n",
782 (unsigned long long)phba->bg_guard_err_cnt);
786 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
789 struct Scsi_Host *shost = class_to_shost(dev);
790 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
791 struct lpfc_hba *phba = vport->phba;
793 return scnprintf(buf, PAGE_SIZE, "%llu\n",
794 (unsigned long long)phba->bg_apptag_err_cnt);
798 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
801 struct Scsi_Host *shost = class_to_shost(dev);
802 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
803 struct lpfc_hba *phba = vport->phba;
805 return scnprintf(buf, PAGE_SIZE, "%llu\n",
806 (unsigned long long)phba->bg_reftag_err_cnt);
810 * lpfc_info_show - Return some pci info about the host in ascii
811 * @dev: class converted to a Scsi_host structure.
812 * @attr: device attribute, not used.
813 * @buf: on return contains the formatted text from lpfc_info().
815 * Returns: size of formatted string.
818 lpfc_info_show(struct device *dev, struct device_attribute *attr,
821 struct Scsi_Host *host = class_to_shost(dev);
823 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host));
827 * lpfc_serialnum_show - Return the hba serial number in ascii
828 * @dev: class converted to a Scsi_host structure.
829 * @attr: device attribute, not used.
830 * @buf: on return contains the formatted text serial number.
832 * Returns: size of formatted string.
835 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
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;
842 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber);
846 * lpfc_temp_sensor_show - Return the temperature sensor level
847 * @dev: class converted to a Scsi_host structure.
848 * @attr: device attribute, not used.
849 * @buf: on return contains the formatted support level.
852 * Returns a number indicating the temperature sensor level currently
853 * supported, zero or one in ascii.
855 * Returns: size of formatted string.
858 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
861 struct Scsi_Host *shost = class_to_shost(dev);
862 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
863 struct lpfc_hba *phba = vport->phba;
864 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support);
868 * lpfc_modeldesc_show - Return the model description of the hba
869 * @dev: class converted to a Scsi_host structure.
870 * @attr: device attribute, not used.
871 * @buf: on return contains the scsi vpd model description.
873 * Returns: size of formatted string.
876 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
879 struct Scsi_Host *shost = class_to_shost(dev);
880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
881 struct lpfc_hba *phba = vport->phba;
883 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc);
887 * lpfc_modelname_show - Return the model name of the hba
888 * @dev: class converted to a Scsi_host structure.
889 * @attr: device attribute, not used.
890 * @buf: on return contains the scsi vpd model name.
892 * Returns: size of formatted string.
895 lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
898 struct Scsi_Host *shost = class_to_shost(dev);
899 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
900 struct lpfc_hba *phba = vport->phba;
902 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName);
906 * lpfc_programtype_show - Return the program type of the hba
907 * @dev: class converted to a Scsi_host structure.
908 * @attr: device attribute, not used.
909 * @buf: on return contains the scsi vpd program type.
911 * Returns: size of formatted string.
914 lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
917 struct Scsi_Host *shost = class_to_shost(dev);
918 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
919 struct lpfc_hba *phba = vport->phba;
921 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType);
925 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
926 * @dev: class converted to a Scsi_host structure.
927 * @attr: device attribute, not used.
928 * @buf: on return contains the Menlo Maintenance sli flag.
930 * Returns: size of formatted string.
933 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
935 struct Scsi_Host *shost = class_to_shost(dev);
936 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
937 struct lpfc_hba *phba = vport->phba;
939 return scnprintf(buf, PAGE_SIZE, "%d\n",
940 (phba->sli.sli_flag & LPFC_MENLO_MAINT));
944 * lpfc_vportnum_show - Return the port number in ascii of the hba
945 * @dev: class converted to a Scsi_host structure.
946 * @attr: device attribute, not used.
947 * @buf: on return contains scsi vpd program type.
949 * Returns: size of formatted string.
952 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
955 struct Scsi_Host *shost = class_to_shost(dev);
956 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
957 struct lpfc_hba *phba = vport->phba;
959 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port);
963 * lpfc_fwrev_show - Return the firmware rev running in the hba
964 * @dev: class converted to a Scsi_host structure.
965 * @attr: device attribute, not used.
966 * @buf: on return contains the scsi vpd program type.
968 * Returns: size of formatted string.
971 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
974 struct Scsi_Host *shost = class_to_shost(dev);
975 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
976 struct lpfc_hba *phba = vport->phba;
979 char fwrev[FW_REV_STR_SIZE];
982 lpfc_decode_firmware_rev(phba, fwrev, 1);
983 if_type = phba->sli4_hba.pc_sli4_params.if_type;
984 sli_family = phba->sli4_hba.pc_sli4_params.sli_family;
986 if (phba->sli_rev < LPFC_SLI_REV4)
987 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n",
988 fwrev, phba->sli_rev);
990 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n",
991 fwrev, phba->sli_rev, if_type, sli_family);
997 * lpfc_hdw_show - Return the jedec information about the hba
998 * @dev: class converted to a Scsi_host structure.
999 * @attr: device attribute, not used.
1000 * @buf: on return contains the scsi vpd program type.
1002 * Returns: size of formatted string.
1005 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
1008 struct Scsi_Host *shost = class_to_shost(dev);
1009 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1010 struct lpfc_hba *phba = vport->phba;
1011 lpfc_vpd_t *vp = &phba->vpd;
1013 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
1014 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw,
1015 vp->rev.smRev, vp->rev.smFwRev);
1019 * lpfc_option_rom_version_show - Return the adapter ROM FCode version
1020 * @dev: class converted to a Scsi_host structure.
1021 * @attr: device attribute, not used.
1022 * @buf: on return contains the ROM and FCode ascii strings.
1024 * Returns: size of formatted string.
1027 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
1030 struct Scsi_Host *shost = class_to_shost(dev);
1031 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1032 struct lpfc_hba *phba = vport->phba;
1033 char fwrev[FW_REV_STR_SIZE];
1035 if (phba->sli_rev < LPFC_SLI_REV4)
1036 return scnprintf(buf, PAGE_SIZE, "%s\n",
1037 phba->OptionROMVersion);
1039 lpfc_decode_firmware_rev(phba, fwrev, 1);
1040 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev);
1044 * lpfc_link_state_show - Return the link state of the port
1045 * @dev: class converted to a Scsi_host structure.
1046 * @attr: device attribute, not used.
1047 * @buf: on return contains text describing the state of the link.
1050 * The switch statement has no default so zero will be returned.
1052 * Returns: size of formatted string.
1055 lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
1058 struct Scsi_Host *shost = class_to_shost(dev);
1059 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1060 struct lpfc_hba *phba = vport->phba;
1063 switch (phba->link_state) {
1064 case LPFC_LINK_UNKNOWN:
1065 case LPFC_WARM_START:
1066 case LPFC_INIT_START:
1067 case LPFC_INIT_MBX_CMDS:
1068 case LPFC_LINK_DOWN:
1069 case LPFC_HBA_ERROR:
1070 if (phba->hba_flag & LINK_DISABLED)
1071 len += scnprintf(buf + len, PAGE_SIZE-len,
1072 "Link Down - User disabled\n");
1074 len += scnprintf(buf + len, PAGE_SIZE-len,
1079 case LPFC_HBA_READY:
1080 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
1082 switch (vport->port_state) {
1083 case LPFC_LOCAL_CFG_LINK:
1084 len += scnprintf(buf + len, PAGE_SIZE-len,
1085 "Configuring Link\n");
1089 case LPFC_FABRIC_CFG_LINK:
1092 case LPFC_BUILD_DISC_LIST:
1093 case LPFC_DISC_AUTH:
1094 len += scnprintf(buf + len, PAGE_SIZE - len,
1097 case LPFC_VPORT_READY:
1098 len += scnprintf(buf + len, PAGE_SIZE - len,
1102 case LPFC_VPORT_FAILED:
1103 len += scnprintf(buf + len, PAGE_SIZE - len,
1107 case LPFC_VPORT_UNKNOWN:
1108 len += scnprintf(buf + len, PAGE_SIZE - len,
1112 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
1113 len += scnprintf(buf + len, PAGE_SIZE-len,
1114 " Menlo Maint Mode\n");
1115 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
1116 if (vport->fc_flag & FC_PUBLIC_LOOP)
1117 len += scnprintf(buf + len, PAGE_SIZE-len,
1120 len += scnprintf(buf + len, PAGE_SIZE-len,
1123 if (vport->fc_flag & FC_FABRIC)
1124 len += scnprintf(buf + len, PAGE_SIZE-len,
1127 len += scnprintf(buf + len, PAGE_SIZE-len,
1128 " Point-2-Point\n");
1132 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1133 ((bf_get(lpfc_sli_intf_if_type,
1134 &phba->sli4_hba.sli_intf) ==
1135 LPFC_SLI_INTF_IF_TYPE_6))) {
1136 struct lpfc_trunk_link link = phba->trunk_link;
1138 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
1139 len += scnprintf(buf + len, PAGE_SIZE - len,
1140 "Trunk port 0: Link %s %s\n",
1141 (link.link0.state == LPFC_LINK_UP) ?
1143 trunk_errmsg[link.link0.fault]);
1145 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
1146 len += scnprintf(buf + len, PAGE_SIZE - len,
1147 "Trunk port 1: Link %s %s\n",
1148 (link.link1.state == LPFC_LINK_UP) ?
1150 trunk_errmsg[link.link1.fault]);
1152 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
1153 len += scnprintf(buf + len, PAGE_SIZE - len,
1154 "Trunk port 2: Link %s %s\n",
1155 (link.link2.state == LPFC_LINK_UP) ?
1157 trunk_errmsg[link.link2.fault]);
1159 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
1160 len += scnprintf(buf + len, PAGE_SIZE - len,
1161 "Trunk port 3: Link %s %s\n",
1162 (link.link3.state == LPFC_LINK_UP) ?
1164 trunk_errmsg[link.link3.fault]);
1172 * lpfc_sli4_protocol_show - Return the fip mode of the HBA
1173 * @dev: class unused variable.
1174 * @attr: device attribute, not used.
1175 * @buf: on return contains the module description text.
1177 * Returns: size of formatted string.
1180 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr,
1183 struct Scsi_Host *shost = class_to_shost(dev);
1184 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1185 struct lpfc_hba *phba = vport->phba;
1187 if (phba->sli_rev < LPFC_SLI_REV4)
1188 return scnprintf(buf, PAGE_SIZE, "fc\n");
1190 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) {
1191 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE)
1192 return scnprintf(buf, PAGE_SIZE, "fcoe\n");
1193 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)
1194 return scnprintf(buf, PAGE_SIZE, "fc\n");
1196 return scnprintf(buf, PAGE_SIZE, "unknown\n");
1200 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage
1201 * (OAS) is supported.
1202 * @dev: class unused variable.
1203 * @attr: device attribute, not used.
1204 * @buf: on return contains the module description text.
1206 * Returns: size of formatted string.
1209 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr,
1212 struct Scsi_Host *shost = class_to_shost(dev);
1213 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
1214 struct lpfc_hba *phba = vport->phba;
1216 return scnprintf(buf, PAGE_SIZE, "%d\n",
1217 phba->sli4_hba.pc_sli4_params.oas_supported);
1221 * lpfc_link_state_store - Transition the link_state on an HBA port
1222 * @dev: class device that is converted into a Scsi_host.
1223 * @attr: device attribute, not used.
1224 * @buf: one or more lpfc_polling_flags values.
1228 * -EINVAL if the buffer is not "up" or "down"
1229 * return from link state change function if non-zero
1230 * length of the buf on success
1233 lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
1234 const char *buf, size_t count)
1236 struct Scsi_Host *shost = class_to_shost(dev);
1237 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1238 struct lpfc_hba *phba = vport->phba;
1240 int status = -EINVAL;
1242 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
1243 (phba->link_state == LPFC_LINK_DOWN))
1244 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
1245 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
1246 (phba->link_state >= LPFC_LINK_UP))
1247 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
1256 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
1257 * @dev: class device that is converted into a Scsi_host.
1258 * @attr: device attribute, not used.
1259 * @buf: on return contains the sum of fc mapped and unmapped.
1262 * Returns the ascii text number of the sum of the fc mapped and unmapped
1265 * Returns: size of formatted string.
1268 lpfc_num_discovered_ports_show(struct device *dev,
1269 struct device_attribute *attr, char *buf)
1271 struct Scsi_Host *shost = class_to_shost(dev);
1272 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1274 return scnprintf(buf, PAGE_SIZE, "%d\n",
1275 vport->fc_map_cnt + vport->fc_unmap_cnt);
1279 * lpfc_issue_lip - Misnomer, name carried over from long ago
1280 * @shost: Scsi_Host pointer.
1283 * Bring the link down gracefully then re-init the link. The firmware will
1284 * re-init the fiber channel interface as required. Does not issue a LIP.
1287 * -EPERM port offline or management commands are being blocked
1288 * -ENOMEM cannot allocate memory for the mailbox command
1289 * -EIO error sending the mailbox command
1293 lpfc_issue_lip(struct Scsi_Host *shost)
1295 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1296 struct lpfc_hba *phba = vport->phba;
1297 LPFC_MBOXQ_t *pmboxq;
1298 int mbxstatus = MBXERR_ERROR;
1301 * If the link is offline, disabled or BLOCK_MGMT_IO
1302 * it doesn't make any sense to allow issue_lip
1304 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1305 (phba->hba_flag & LINK_DISABLED) ||
1306 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
1309 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
1314 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1315 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
1316 pmboxq->u.mb.mbxOwner = OWN_HOST;
1318 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
1320 if ((mbxstatus == MBX_SUCCESS) &&
1321 (pmboxq->u.mb.mbxStatus == 0 ||
1322 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
1323 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1324 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
1325 phba->cfg_link_speed);
1326 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
1327 phba->fc_ratov * 2);
1328 if ((mbxstatus == MBX_SUCCESS) &&
1329 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
1330 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
1331 "2859 SLI authentication is required "
1332 "for INIT_LINK but has not done yet\n");
1335 lpfc_set_loopback_flag(phba);
1336 if (mbxstatus != MBX_TIMEOUT)
1337 mempool_free(pmboxq, phba->mbox_mem_pool);
1339 if (mbxstatus == MBXERR_ERROR)
1346 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock)
1350 spin_lock_irq(lock);
1351 while (!list_empty(q)) {
1352 spin_unlock_irq(lock);
1354 if (cnt++ > 250) { /* 5 secs */
1355 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1356 "0466 Outstanding IO when "
1357 "bringing Adapter offline\n");
1360 spin_lock_irq(lock);
1362 spin_unlock_irq(lock);
1367 * lpfc_do_offline - Issues a mailbox command to bring the link down
1368 * @phba: lpfc_hba pointer.
1369 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
1372 * Assumes any error from lpfc_do_offline() will be negative.
1373 * Can wait up to 5 seconds for the port ring buffers count
1374 * to reach zero, prints a warning if it is not zero and continues.
1375 * lpfc_workq_post_event() returns a non-zero return code if call fails.
1378 * -EIO error posting the event
1382 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
1384 struct completion online_compl;
1385 struct lpfc_queue *qp = NULL;
1386 struct lpfc_sli_ring *pring;
1387 struct lpfc_sli *psli;
1392 init_completion(&online_compl);
1393 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1394 LPFC_EVT_OFFLINE_PREP);
1398 wait_for_completion(&online_compl);
1406 * If freeing the queues have already started, don't access them.
1407 * Otherwise set FREE_WAIT to indicate that queues are being used
1408 * to hold the freeing process until we finish.
1410 spin_lock_irq(&phba->hbalock);
1411 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) {
1412 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT;
1414 spin_unlock_irq(&phba->hbalock);
1417 spin_unlock_irq(&phba->hbalock);
1419 /* Wait a little for things to settle down, but not
1420 * long enough for dev loss timeout to expire.
1422 if (phba->sli_rev != LPFC_SLI_REV4) {
1423 for (i = 0; i < psli->num_rings; i++) {
1424 pring = &psli->sli3_ring[i];
1425 if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
1430 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1434 if (!lpfc_emptyq_wait(phba, &pring->txcmplq,
1440 spin_lock_irq(&phba->hbalock);
1441 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT;
1442 spin_unlock_irq(&phba->hbalock);
1445 init_completion(&online_compl);
1446 rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
1450 wait_for_completion(&online_compl);
1459 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA
1460 * @phba: lpfc_hba pointer.
1463 * Issues a PCI secondary bus reset for the phba->pcidev.
1466 * First walks the bus_list to ensure only PCI devices with Emulex
1467 * vendor id, device ids that support hot reset, only one occurrence
1468 * of function 0, and all ports on the bus are in offline mode to ensure the
1469 * hot reset only affects one valid HBA.
1472 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2
1473 * -ENODEV, NULL ptr to pcidev
1474 * -EBADSLT, detected invalid device
1475 * -EBUSY, port is not in offline state
1479 lpfc_reset_pci_bus(struct lpfc_hba *phba)
1481 struct pci_dev *pdev = phba->pcidev;
1482 struct Scsi_Host *shost = NULL;
1483 struct lpfc_hba *phba_other = NULL;
1484 struct pci_dev *ptr = NULL;
1487 if (phba->cfg_enable_hba_reset != 2)
1491 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n");
1495 res = lpfc_check_pci_resettable(phba);
1499 /* Walk the list of devices on the pci_dev's bus */
1500 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) {
1501 /* Check port is offline */
1502 shost = pci_get_drvdata(ptr);
1505 ((struct lpfc_vport *)shost->hostdata)->phba;
1506 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) {
1507 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT,
1508 "8349 WWPN = 0x%02x%02x%02x%02x"
1509 "%02x%02x%02x%02x is not "
1511 phba_other->wwpn[0],
1512 phba_other->wwpn[1],
1513 phba_other->wwpn[2],
1514 phba_other->wwpn[3],
1515 phba_other->wwpn[4],
1516 phba_other->wwpn[5],
1517 phba_other->wwpn[6],
1518 phba_other->wwpn[7]);
1524 /* Issue PCI bus reset */
1525 res = pci_reset_bus(pdev);
1527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1528 "8350 PCI reset bus failed: %d\n", res);
1535 * lpfc_selective_reset - Offline then onlines the port
1536 * @phba: lpfc_hba pointer.
1539 * If the port is configured to allow a reset then the hba is brought
1540 * offline then online.
1543 * Assumes any error from lpfc_do_offline() will be negative.
1544 * Do not make this function static.
1547 * lpfc_do_offline() return code if not zero
1548 * -EIO reset not configured or error posting the event
1552 lpfc_selective_reset(struct lpfc_hba *phba)
1554 struct completion online_compl;
1558 if (!phba->cfg_enable_hba_reset)
1561 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) {
1562 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1568 init_completion(&online_compl);
1569 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1574 wait_for_completion(&online_compl);
1583 * lpfc_issue_reset - Selectively resets an adapter
1584 * @dev: class device that is converted into a Scsi_host.
1585 * @attr: device attribute, not used.
1586 * @buf: containing the string "selective".
1587 * @count: unused variable.
1590 * If the buf contains the string "selective" then lpfc_selective_reset()
1591 * is called to perform the reset.
1594 * Assumes any error from lpfc_selective_reset() will be negative.
1595 * If lpfc_selective_reset() returns zero then the length of the buffer
1596 * is returned which indicates success
1599 * -EINVAL if the buffer does not contain the string "selective"
1600 * length of buf if lpfc-selective_reset() if the call succeeds
1601 * return value of lpfc_selective_reset() if the call fails
1604 lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
1605 const char *buf, size_t count)
1607 struct Scsi_Host *shost = class_to_shost(dev);
1608 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1609 struct lpfc_hba *phba = vport->phba;
1610 int status = -EINVAL;
1612 if (!phba->cfg_enable_hba_reset)
1615 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
1616 status = phba->lpfc_selective_reset(phba);
1625 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
1626 * @phba: lpfc_hba pointer.
1629 * SLI4 interface type-2 device to wait on the sliport status register for
1630 * the readyness after performing a firmware reset.
1633 * zero for success, -EPERM when port does not have privilege to perform the
1634 * reset, -EIO when port timeout from recovering from the reset.
1637 * As the caller will interpret the return code by value, be careful in making
1638 * change or addition to return codes.
1641 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
1643 struct lpfc_register portstat_reg = {0};
1647 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
1648 &portstat_reg.word0))
1651 /* verify if privileged for the request operation */
1652 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) &&
1653 !bf_get(lpfc_sliport_status_err, &portstat_reg))
1656 /* wait for the SLI port firmware ready after firmware reset */
1657 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
1659 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
1660 &portstat_reg.word0))
1662 if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
1664 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
1666 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
1671 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
1678 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
1679 * @phba: lpfc_hba pointer.
1680 * @opcode: The sli4 config command opcode.
1683 * Request SLI4 interface type-2 device to perform a physical register set
1690 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
1692 struct completion online_compl;
1693 struct pci_dev *pdev = phba->pcidev;
1694 uint32_t before_fc_flag;
1695 uint32_t sriov_nr_virtfn;
1697 int status = 0, rc = 0;
1698 int job_posted = 1, sriov_err;
1700 if (!phba->cfg_enable_hba_reset)
1703 if ((phba->sli_rev < LPFC_SLI_REV4) ||
1704 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
1705 LPFC_SLI_INTF_IF_TYPE_2))
1708 /* Keep state if we need to restore back */
1709 before_fc_flag = phba->pport->fc_flag;
1710 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;
1712 if (opcode == LPFC_FW_DUMP) {
1713 init_completion(&online_compl);
1714 phba->fw_dump_cmpl = &online_compl;
1716 /* Disable SR-IOV virtual functions if enabled */
1717 if (phba->cfg_sriov_nr_virtfn) {
1718 pci_disable_sriov(pdev);
1719 phba->cfg_sriov_nr_virtfn = 0;
1722 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1727 /* wait for the device to be quiesced before firmware reset */
1731 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
1732 LPFC_CTL_PDEV_CTL_OFFSET);
1734 if (opcode == LPFC_FW_DUMP)
1735 reg_val |= LPFC_FW_DUMP_REQUEST;
1736 else if (opcode == LPFC_FW_RESET)
1737 reg_val |= LPFC_CTL_PDEV_CTL_FRST;
1738 else if (opcode == LPFC_DV_RESET)
1739 reg_val |= LPFC_CTL_PDEV_CTL_DRST;
1741 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
1742 LPFC_CTL_PDEV_CTL_OFFSET);
1744 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
1746 /* delay driver action following IF_TYPE_2 reset */
1747 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1750 /* no privilege for reset */
1751 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1752 "3150 No privilege to perform the requested "
1753 "access: x%x\n", reg_val);
1754 } else if (rc == -EIO) {
1755 /* reset failed, there is nothing more we can do */
1756 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1757 "3153 Fail to perform the requested "
1758 "access: x%x\n", reg_val);
1759 if (phba->fw_dump_cmpl)
1760 phba->fw_dump_cmpl = NULL;
1764 /* keep the original port state */
1765 if (before_fc_flag & FC_OFFLINE_MODE) {
1766 if (phba->fw_dump_cmpl)
1767 phba->fw_dump_cmpl = NULL;
1771 /* Firmware dump will trigger an HA_ERATT event, and
1772 * lpfc_handle_eratt_s4 routine already handles bringing the port back
1775 if (opcode == LPFC_FW_DUMP) {
1776 wait_for_completion(phba->fw_dump_cmpl);
1778 init_completion(&online_compl);
1779 job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
1784 wait_for_completion(&online_compl);
1787 /* in any case, restore the virtual functions enabled as before */
1788 if (sriov_nr_virtfn) {
1789 /* If fw_dump was performed, first disable to clean up */
1790 if (opcode == LPFC_FW_DUMP) {
1791 pci_disable_sriov(pdev);
1792 phba->cfg_sriov_nr_virtfn = 0;
1796 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
1798 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
1801 /* return proper error code */
1812 * lpfc_nport_evt_cnt_show - Return the number of nport events
1813 * @dev: class device that is converted into a Scsi_host.
1814 * @attr: device attribute, not used.
1815 * @buf: on return contains the ascii number of nport events.
1817 * Returns: size of formatted string.
1820 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
1823 struct Scsi_Host *shost = class_to_shost(dev);
1824 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1825 struct lpfc_hba *phba = vport->phba;
1827 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
1831 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out)
1833 LPFC_MBOXQ_t *mbox = NULL;
1834 unsigned long val = 0;
1838 if (!strncmp("enable", buff_out,
1839 strlen("enable"))) {
1840 pval = buff_out + strlen("enable") + 1;
1841 rc = kstrtoul(pval, 0, &val);
1843 return rc; /* Invalid number */
1844 } else if (!strncmp("disable", buff_out,
1845 strlen("disable"))) {
1848 return -EINVAL; /* Invalid command */
1853 val = 0x0; /* Disable */
1856 val = 0x1; /* Enable two port trunk */
1859 val = 0x2; /* Enable four port trunk */
1865 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1866 "0070 Set trunk mode with val %ld ", val);
1868 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1872 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
1873 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE,
1874 12, LPFC_SLI4_MBX_EMBED);
1876 bf_set(lpfc_mbx_set_trunk_mode,
1877 &mbox->u.mqe.un.set_trunk_mode,
1879 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
1881 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1882 "0071 Set trunk mode failed with status: %d",
1884 mempool_free(mbox, phba->mbox_mem_pool);
1890 * lpfc_board_mode_show - Return the state of the board
1891 * @dev: class device that is converted into a Scsi_host.
1892 * @attr: device attribute, not used.
1893 * @buf: on return contains the state of the adapter.
1895 * Returns: size of formatted string.
1898 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
1901 struct Scsi_Host *shost = class_to_shost(dev);
1902 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1903 struct lpfc_hba *phba = vport->phba;
1906 if (phba->link_state == LPFC_HBA_ERROR)
1908 else if (phba->link_state == LPFC_WARM_START)
1909 state = "warm start";
1910 else if (phba->link_state == LPFC_INIT_START)
1915 return scnprintf(buf, PAGE_SIZE, "%s\n", state);
1919 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
1920 * @dev: class device that is converted into a Scsi_host.
1921 * @attr: device attribute, not used.
1922 * @buf: containing one of the strings "online", "offline", "warm" or "error".
1923 * @count: unused variable.
1926 * -EACCES if enable hba reset not enabled
1927 * -EINVAL if the buffer does not contain a valid string (see above)
1928 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
1929 * buf length greater than zero indicates success
1932 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
1933 const char *buf, size_t count)
1935 struct Scsi_Host *shost = class_to_shost(dev);
1936 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1937 struct lpfc_hba *phba = vport->phba;
1938 struct completion online_compl;
1939 char *board_mode_str = NULL;
1943 if (!phba->cfg_enable_hba_reset) {
1945 goto board_mode_out;
1948 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1949 "3050 lpfc_board_mode set to %s\n", buf);
1951 init_completion(&online_compl);
1953 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
1954 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1958 goto board_mode_out;
1960 wait_for_completion(&online_compl);
1963 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
1964 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1965 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
1966 if (phba->sli_rev == LPFC_SLI_REV4)
1969 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
1970 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
1971 if (phba->sli_rev == LPFC_SLI_REV4)
1974 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
1975 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
1976 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
1977 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
1978 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
1979 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
1980 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
1981 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1)
1983 status = lpfc_reset_pci_bus(phba);
1984 else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0)
1985 lpfc_issue_hb_tmo(phba);
1986 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0)
1987 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk"));
1995 board_mode_str = strchr(buf, '\n');
1997 *board_mode_str = '\0';
1998 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1999 "3097 Failed \"%s\", status(%d), "
2001 buf, status, phba->pport->fc_flag);
2007 * lpfc_get_hba_info - Return various bits of informaton about the adapter
2008 * @phba: pointer to the adapter structure.
2009 * @mxri: max xri count.
2010 * @axri: available xri count.
2011 * @mrpi: max rpi count.
2012 * @arpi: available rpi count.
2013 * @mvpi: max vpi count.
2014 * @avpi: available vpi count.
2017 * If an integer pointer for an count is not null then the value for the
2018 * count is returned.
2025 lpfc_get_hba_info(struct lpfc_hba *phba,
2026 uint32_t *mxri, uint32_t *axri,
2027 uint32_t *mrpi, uint32_t *arpi,
2028 uint32_t *mvpi, uint32_t *avpi)
2030 struct lpfc_mbx_read_config *rd_config;
2031 LPFC_MBOXQ_t *pmboxq;
2037 * prevent udev from issuing mailbox commands until the port is
2040 if (phba->link_state < LPFC_LINK_DOWN ||
2041 !phba->mbox_mem_pool ||
2042 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
2045 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2048 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2051 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
2053 pmb = &pmboxq->u.mb;
2054 pmb->mbxCommand = MBX_READ_CONFIG;
2055 pmb->mbxOwner = OWN_HOST;
2056 pmboxq->ctx_buf = NULL;
2058 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2059 rc = MBX_NOT_FINISHED;
2061 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2063 if (rc != MBX_SUCCESS) {
2064 if (rc != MBX_TIMEOUT)
2065 mempool_free(pmboxq, phba->mbox_mem_pool);
2069 if (phba->sli_rev == LPFC_SLI_REV4) {
2070 rd_config = &pmboxq->u.mqe.un.rd_config;
2072 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
2074 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
2075 phba->sli4_hba.max_cfg_param.rpi_used;
2077 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
2079 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
2080 phba->sli4_hba.max_cfg_param.xri_used;
2082 /* Account for differences with SLI-3. Get vpi count from
2083 * mailbox data and subtract one for max vpi value.
2085 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
2086 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
2088 /* Limit the max we support */
2089 if (max_vpi > LPFC_MAX_VPI)
2090 max_vpi = LPFC_MAX_VPI;
2094 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
2097 *mrpi = pmb->un.varRdConfig.max_rpi;
2099 *arpi = pmb->un.varRdConfig.avail_rpi;
2101 *mxri = pmb->un.varRdConfig.max_xri;
2103 *axri = pmb->un.varRdConfig.avail_xri;
2105 *mvpi = pmb->un.varRdConfig.max_vpi;
2107 /* avail_vpi is only valid if link is up and ready */
2108 if (phba->link_state == LPFC_HBA_READY)
2109 *avpi = pmb->un.varRdConfig.avail_vpi;
2111 *avpi = pmb->un.varRdConfig.max_vpi;
2115 mempool_free(pmboxq, phba->mbox_mem_pool);
2120 * lpfc_max_rpi_show - Return maximum rpi
2121 * @dev: class device that is converted into a Scsi_host.
2122 * @attr: device attribute, not used.
2123 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
2126 * Calls lpfc_get_hba_info() asking for just the mrpi count.
2127 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2128 * to "Unknown" and the buffer length is returned, therefore the caller
2129 * must check for "Unknown" in the buffer to detect a failure.
2131 * Returns: size of formatted string.
2134 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
2137 struct Scsi_Host *shost = class_to_shost(dev);
2138 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2139 struct lpfc_hba *phba = vport->phba;
2142 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
2143 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
2144 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
2148 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
2149 * @dev: class device that is converted into a Scsi_host.
2150 * @attr: device attribute, not used.
2151 * @buf: containing the used rpi count in decimal or "Unknown".
2154 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
2155 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2156 * to "Unknown" and the buffer length is returned, therefore the caller
2157 * must check for "Unknown" in the buffer to detect a failure.
2159 * Returns: size of formatted string.
2162 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
2165 struct Scsi_Host *shost = class_to_shost(dev);
2166 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2167 struct lpfc_hba *phba = vport->phba;
2170 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
2171 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
2172 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
2176 * lpfc_max_xri_show - Return maximum xri
2177 * @dev: class device that is converted into a Scsi_host.
2178 * @attr: device attribute, not used.
2179 * @buf: on return contains the maximum xri count in decimal or "Unknown".
2182 * Calls lpfc_get_hba_info() asking for just the mrpi count.
2183 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2184 * to "Unknown" and the buffer length is returned, therefore the caller
2185 * must check for "Unknown" in the buffer to detect a failure.
2187 * Returns: size of formatted string.
2190 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
2193 struct Scsi_Host *shost = class_to_shost(dev);
2194 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2195 struct lpfc_hba *phba = vport->phba;
2198 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
2199 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
2200 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
2204 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
2205 * @dev: class device that is converted into a Scsi_host.
2206 * @attr: device attribute, not used.
2207 * @buf: on return contains the used xri count in decimal or "Unknown".
2210 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
2211 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2212 * to "Unknown" and the buffer length is returned, therefore the caller
2213 * must check for "Unknown" in the buffer to detect a failure.
2215 * Returns: size of formatted string.
2218 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
2221 struct Scsi_Host *shost = class_to_shost(dev);
2222 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2223 struct lpfc_hba *phba = vport->phba;
2226 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
2227 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
2228 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
2232 * lpfc_max_vpi_show - Return maximum vpi
2233 * @dev: class device that is converted into a Scsi_host.
2234 * @attr: device attribute, not used.
2235 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
2238 * Calls lpfc_get_hba_info() asking for just the mvpi count.
2239 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2240 * to "Unknown" and the buffer length is returned, therefore the caller
2241 * must check for "Unknown" in the buffer to detect a failure.
2243 * Returns: size of formatted string.
2246 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
2249 struct Scsi_Host *shost = class_to_shost(dev);
2250 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2251 struct lpfc_hba *phba = vport->phba;
2254 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
2255 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
2256 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
2260 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
2261 * @dev: class device that is converted into a Scsi_host.
2262 * @attr: device attribute, not used.
2263 * @buf: on return contains the used vpi count in decimal or "Unknown".
2266 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
2267 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
2268 * to "Unknown" and the buffer length is returned, therefore the caller
2269 * must check for "Unknown" in the buffer to detect a failure.
2271 * Returns: size of formatted string.
2274 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
2277 struct Scsi_Host *shost = class_to_shost(dev);
2278 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2279 struct lpfc_hba *phba = vport->phba;
2282 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
2283 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
2284 return scnprintf(buf, PAGE_SIZE, "Unknown\n");
2288 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
2289 * @dev: class device that is converted into a Scsi_host.
2290 * @attr: device attribute, not used.
2291 * @buf: text that must be interpreted to determine if npiv is supported.
2294 * Buffer will contain text indicating npiv is not suppoerted on the port,
2295 * the port is an NPIV physical port, or it is an npiv virtual port with
2296 * the id of the vport.
2298 * Returns: size of formatted string.
2301 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
2304 struct Scsi_Host *shost = class_to_shost(dev);
2305 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2306 struct lpfc_hba *phba = vport->phba;
2308 if (!(phba->max_vpi))
2309 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
2310 if (vport->port_type == LPFC_PHYSICAL_PORT)
2311 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n");
2312 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
2316 * lpfc_poll_show - Return text about poll support for the adapter
2317 * @dev: class device that is converted into a Scsi_host.
2318 * @attr: device attribute, not used.
2319 * @buf: on return contains the cfg_poll in hex.
2322 * cfg_poll should be a lpfc_polling_flags type.
2324 * Returns: size of formatted string.
2327 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
2330 struct Scsi_Host *shost = class_to_shost(dev);
2331 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2332 struct lpfc_hba *phba = vport->phba;
2334 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
2338 * lpfc_poll_store - Set the value of cfg_poll for the adapter
2339 * @dev: class device that is converted into a Scsi_host.
2340 * @attr: device attribute, not used.
2341 * @buf: one or more lpfc_polling_flags values.
2345 * buf contents converted to integer and checked for a valid value.
2348 * -EINVAL if the buffer connot be converted or is out of range
2349 * length of the buf on success
2352 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
2353 const char *buf, size_t count)
2355 struct Scsi_Host *shost = class_to_shost(dev);
2356 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2357 struct lpfc_hba *phba = vport->phba;
2362 if (!isdigit(buf[0]))
2365 if (sscanf(buf, "%i", &val) != 1)
2368 if ((val & 0x3) != val)
2371 if (phba->sli_rev == LPFC_SLI_REV4)
2374 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2375 "3051 lpfc_poll changed from %d to %d\n",
2376 phba->cfg_poll, val);
2378 spin_lock_irq(&phba->hbalock);
2380 old_val = phba->cfg_poll;
2382 if (val & ENABLE_FCP_RING_POLLING) {
2383 if ((val & DISABLE_FCP_RING_INT) &&
2384 !(old_val & DISABLE_FCP_RING_INT)) {
2385 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
2386 spin_unlock_irq(&phba->hbalock);
2389 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
2390 writel(creg_val, phba->HCregaddr);
2391 readl(phba->HCregaddr); /* flush */
2393 lpfc_poll_start_timer(phba);
2395 } else if (val != 0x0) {
2396 spin_unlock_irq(&phba->hbalock);
2400 if (!(val & DISABLE_FCP_RING_INT) &&
2401 (old_val & DISABLE_FCP_RING_INT))
2403 spin_unlock_irq(&phba->hbalock);
2404 del_timer(&phba->fcp_poll_timer);
2405 spin_lock_irq(&phba->hbalock);
2406 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
2407 spin_unlock_irq(&phba->hbalock);
2410 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
2411 writel(creg_val, phba->HCregaddr);
2412 readl(phba->HCregaddr); /* flush */
2415 phba->cfg_poll = val;
2417 spin_unlock_irq(&phba->hbalock);
2423 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
2424 * @dev: class converted to a Scsi_host structure.
2425 * @attr: device attribute, not used.
2426 * @buf: on return contains the formatted support level.
2429 * Returns the maximum number of virtual functions a physical function can
2430 * support, 0 will be returned if called on virtual function.
2432 * Returns: size of formatted string.
2435 lpfc_sriov_hw_max_virtfn_show(struct device *dev,
2436 struct device_attribute *attr,
2439 struct Scsi_Host *shost = class_to_shost(dev);
2440 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2441 struct lpfc_hba *phba = vport->phba;
2442 uint16_t max_nr_virtfn;
2444 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
2445 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
2449 * lpfc_enable_bbcr_set: Sets an attribute value.
2450 * @phba: pointer the the adapter structure.
2451 * @val: integer attribute value.
2454 * Validates the min and max values then sets the
2455 * adapter config field if in the valid range. prints error message
2456 * and does not set the parameter if invalid.
2460 * -EINVAL if val is invalid
2463 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val)
2465 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) {
2466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2467 "3068 lpfc_enable_bbcr changed from %d to "
2468 "%d\n", phba->cfg_enable_bbcr, val);
2469 phba->cfg_enable_bbcr = val;
2472 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2473 "0451 lpfc_enable_bbcr cannot set to %d, range is 0, "
2479 * lpfc_param_show - Return a cfg attribute value in decimal
2482 * Macro that given an attr e.g. hba_queue_depth expands
2483 * into a function with the name lpfc_hba_queue_depth_show.
2485 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
2486 * @dev: class device that is converted into a Scsi_host.
2487 * @attr: device attribute, not used.
2488 * @buf: on return contains the attribute value in decimal.
2490 * Returns: size of formatted string.
2492 #define lpfc_param_show(attr) \
2494 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2497 struct Scsi_Host *shost = class_to_shost(dev);\
2498 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2499 struct lpfc_hba *phba = vport->phba;\
2500 return scnprintf(buf, PAGE_SIZE, "%d\n",\
2505 * lpfc_param_hex_show - Return a cfg attribute value in hex
2508 * Macro that given an attr e.g. hba_queue_depth expands
2509 * into a function with the name lpfc_hba_queue_depth_show
2511 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
2512 * @dev: class device that is converted into a Scsi_host.
2513 * @attr: device attribute, not used.
2514 * @buf: on return contains the attribute value in hexadecimal.
2516 * Returns: size of formatted string.
2518 #define lpfc_param_hex_show(attr) \
2520 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2523 struct Scsi_Host *shost = class_to_shost(dev);\
2524 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2525 struct lpfc_hba *phba = vport->phba;\
2527 val = phba->cfg_##attr;\
2528 return scnprintf(buf, PAGE_SIZE, "%#x\n",\
2533 * lpfc_param_init - Initializes a cfg attribute
2536 * Macro that given an attr e.g. hba_queue_depth expands
2537 * into a function with the name lpfc_hba_queue_depth_init. The macro also
2538 * takes a default argument, a minimum and maximum argument.
2540 * lpfc_##attr##_init: Initializes an attribute.
2541 * @phba: pointer the the adapter structure.
2542 * @val: integer attribute value.
2544 * Validates the min and max values then sets the adapter config field
2545 * accordingly, or uses the default if out of range and prints an error message.
2549 * -EINVAL if default used
2551 #define lpfc_param_init(attr, default, minval, maxval) \
2553 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
2555 if (lpfc_rangecheck(val, minval, maxval)) {\
2556 phba->cfg_##attr = val;\
2559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
2560 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
2561 "allowed range is ["#minval", "#maxval"]\n", val); \
2562 phba->cfg_##attr = default;\
2567 * lpfc_param_set - Set a cfg attribute value
2570 * Macro that given an attr e.g. hba_queue_depth expands
2571 * into a function with the name lpfc_hba_queue_depth_set
2573 * lpfc_##attr##_set: Sets an attribute value.
2574 * @phba: pointer the the adapter structure.
2575 * @val: integer attribute value.
2578 * Validates the min and max values then sets the
2579 * adapter config field if in the valid range. prints error message
2580 * and does not set the parameter if invalid.
2584 * -EINVAL if val is invalid
2586 #define lpfc_param_set(attr, default, minval, maxval) \
2588 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
2590 if (lpfc_rangecheck(val, minval, maxval)) {\
2591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
2592 "3052 lpfc_" #attr " changed from %d to %d\n", \
2593 phba->cfg_##attr, val); \
2594 phba->cfg_##attr = val;\
2597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
2598 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
2599 "allowed range is ["#minval", "#maxval"]\n", val); \
2604 * lpfc_param_store - Set a vport attribute value
2607 * Macro that given an attr e.g. hba_queue_depth expands
2608 * into a function with the name lpfc_hba_queue_depth_store.
2610 * lpfc_##attr##_store: Set an sttribute value.
2611 * @dev: class device that is converted into a Scsi_host.
2612 * @attr: device attribute, not used.
2613 * @buf: contains the attribute value in ascii.
2617 * Convert the ascii text number to an integer, then
2618 * use the lpfc_##attr##_set function to set the value.
2621 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
2622 * length of buffer upon success.
2624 #define lpfc_param_store(attr) \
2626 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
2627 const char *buf, size_t count) \
2629 struct Scsi_Host *shost = class_to_shost(dev);\
2630 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2631 struct lpfc_hba *phba = vport->phba;\
2633 if (!isdigit(buf[0]))\
2635 if (sscanf(buf, "%i", &val) != 1)\
2637 if (lpfc_##attr##_set(phba, val) == 0) \
2638 return strlen(buf);\
2644 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
2647 * Macro that given an attr e.g. hba_queue_depth expands
2648 * into a function with the name lpfc_hba_queue_depth_show
2650 * lpfc_##attr##_show: prints the attribute value in decimal.
2651 * @dev: class device that is converted into a Scsi_host.
2652 * @attr: device attribute, not used.
2653 * @buf: on return contains the attribute value in decimal.
2655 * Returns: length of formatted string.
2657 #define lpfc_vport_param_show(attr) \
2659 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2662 struct Scsi_Host *shost = class_to_shost(dev);\
2663 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2664 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
2668 * lpfc_vport_param_hex_show - Return hex formatted attribute value
2671 * Macro that given an attr e.g.
2672 * hba_queue_depth expands into a function with the name
2673 * lpfc_hba_queue_depth_show
2675 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
2676 * @dev: class device that is converted into a Scsi_host.
2677 * @attr: device attribute, not used.
2678 * @buf: on return contains the attribute value in hexadecimal.
2680 * Returns: length of formatted string.
2682 #define lpfc_vport_param_hex_show(attr) \
2684 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
2687 struct Scsi_Host *shost = class_to_shost(dev);\
2688 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2689 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
2693 * lpfc_vport_param_init - Initialize a vport cfg attribute
2696 * Macro that given an attr e.g. hba_queue_depth expands
2697 * into a function with the name lpfc_hba_queue_depth_init. The macro also
2698 * takes a default argument, a minimum and maximum argument.
2700 * lpfc_##attr##_init: validates the min and max values then sets the
2701 * adapter config field accordingly, or uses the default if out of range
2702 * and prints an error message.
2703 * @phba: pointer the the adapter structure.
2704 * @val: integer attribute value.
2708 * -EINVAL if default used
2710 #define lpfc_vport_param_init(attr, default, minval, maxval) \
2712 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
2714 if (lpfc_rangecheck(val, minval, maxval)) {\
2715 vport->cfg_##attr = val;\
2718 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
2719 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
2720 "allowed range is ["#minval", "#maxval"]\n", val); \
2721 vport->cfg_##attr = default;\
2726 * lpfc_vport_param_set - Set a vport cfg attribute
2729 * Macro that given an attr e.g. hba_queue_depth expands
2730 * into a function with the name lpfc_hba_queue_depth_set
2732 * lpfc_##attr##_set: validates the min and max values then sets the
2733 * adapter config field if in the valid range. prints error message
2734 * and does not set the parameter if invalid.
2735 * @phba: pointer the the adapter structure.
2736 * @val: integer attribute value.
2740 * -EINVAL if val is invalid
2742 #define lpfc_vport_param_set(attr, default, minval, maxval) \
2744 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
2746 if (lpfc_rangecheck(val, minval, maxval)) {\
2747 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
2748 "3053 lpfc_" #attr \
2749 " changed from %d (x%x) to %d (x%x)\n", \
2750 vport->cfg_##attr, vport->cfg_##attr, \
2752 vport->cfg_##attr = val;\
2755 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
2756 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
2757 "allowed range is ["#minval", "#maxval"]\n", val); \
2762 * lpfc_vport_param_store - Set a vport attribute
2765 * Macro that given an attr e.g. hba_queue_depth
2766 * expands into a function with the name lpfc_hba_queue_depth_store
2768 * lpfc_##attr##_store: convert the ascii text number to an integer, then
2769 * use the lpfc_##attr##_set function to set the value.
2770 * @cdev: class device that is converted into a Scsi_host.
2771 * @buf: contains the attribute value in decimal.
2775 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
2776 * length of buffer upon success.
2778 #define lpfc_vport_param_store(attr) \
2780 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
2781 const char *buf, size_t count) \
2783 struct Scsi_Host *shost = class_to_shost(dev);\
2784 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
2786 if (!isdigit(buf[0]))\
2788 if (sscanf(buf, "%i", &val) != 1)\
2790 if (lpfc_##attr##_set(vport, val) == 0) \
2791 return strlen(buf);\
2797 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL);
2798 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL);
2799 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
2800 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
2801 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
2802 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
2803 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
2804 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
2805 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
2806 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
2807 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
2808 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
2809 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
2810 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
2811 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
2812 lpfc_link_state_store);
2813 static DEVICE_ATTR(option_rom_version, S_IRUGO,
2814 lpfc_option_rom_version_show, NULL);
2815 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
2816 lpfc_num_discovered_ports_show, NULL);
2817 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
2818 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
2819 static DEVICE_ATTR_RO(lpfc_drvr_version);
2820 static DEVICE_ATTR_RO(lpfc_enable_fip);
2821 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
2822 lpfc_board_mode_show, lpfc_board_mode_store);
2823 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
2824 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
2825 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
2826 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
2827 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
2828 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
2829 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
2830 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
2831 static DEVICE_ATTR_RO(lpfc_temp_sensor);
2832 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn);
2833 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
2834 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
2836 static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL);
2838 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
2841 * lpfc_wwn_set - Convert string to the 8 byte WWN value.
2843 * @cnt: Length of string.
2844 * @wwn: Array to receive converted wwn value.
2847 * -EINVAL if the buffer does not contain a valid wwn
2851 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[])
2855 /* Count may include a LF at end of string */
2856 if (buf[cnt-1] == '\n')
2859 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) ||
2860 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
2863 memset(wwn, 0, WWN_SZ);
2865 /* Validate and store the new name */
2866 for (i = 0, j = 0; i < 16; i++) {
2867 if ((*buf >= 'a') && (*buf <= 'f'))
2868 j = ((j << 4) | ((*buf++ - 'a') + 10));
2869 else if ((*buf >= 'A') && (*buf <= 'F'))
2870 j = ((j << 4) | ((*buf++ - 'A') + 10));
2871 else if ((*buf >= '0') && (*buf <= '9'))
2872 j = ((j << 4) | (*buf++ - '0'));
2876 wwn[i/2] = j & 0xff;
2883 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
2884 * @dev: class device that is converted into a Scsi_host.
2885 * @attr: device attribute, not used.
2886 * @buf: containing the string lpfc_soft_wwn_key.
2887 * @count: must be size of lpfc_soft_wwn_key.
2890 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
2891 * length of buf indicates success
2894 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
2895 const char *buf, size_t count)
2897 struct Scsi_Host *shost = class_to_shost(dev);
2898 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2899 struct lpfc_hba *phba = vport->phba;
2900 unsigned int cnt = count;
2901 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
2902 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0];
2905 * We're doing a simple sanity check for soft_wwpn setting.
2906 * We require that the user write a specific key to enable
2907 * the soft_wwpn attribute to be settable. Once the attribute
2908 * is written, the enable key resets. If further updates are
2909 * desired, the key must be written again to re-enable the
2912 * The "key" is not secret - it is a hardcoded string shown
2913 * here. The intent is to protect against the random user or
2914 * application that is just writing attributes.
2916 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) {
2917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2918 "0051 lpfc soft wwpn can not be enabled: "
2919 "fawwpn is enabled\n");
2923 /* count may include a LF at end of string */
2924 if (buf[cnt-1] == '\n')
2927 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
2928 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
2931 phba->soft_wwn_enable = 1;
2933 dev_printk(KERN_WARNING, &phba->pcidev->dev,
2934 "lpfc%d: soft_wwpn assignment has been enabled.\n",
2936 dev_printk(KERN_WARNING, &phba->pcidev->dev,
2937 " The soft_wwpn feature is not supported by Broadcom.");
2941 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable);
2944 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
2945 * @dev: class device that is converted into a Scsi_host.
2946 * @attr: device attribute, not used.
2947 * @buf: on return contains the wwpn in hexadecimal.
2949 * Returns: size of formatted string.
2952 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
2955 struct Scsi_Host *shost = class_to_shost(dev);
2956 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2957 struct lpfc_hba *phba = vport->phba;
2959 return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
2960 (unsigned long long)phba->cfg_soft_wwpn);
2964 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
2965 * @dev: class device that is converted into a Scsi_host.
2966 * @attr: device attribute, not used.
2967 * @buf: contains the wwpn in hexadecimal.
2968 * @count: number of wwpn bytes in buf
2971 * -EACCES hba reset not enabled, adapter over temp
2972 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
2973 * -EIO error taking adapter offline or online
2974 * value of count on success
2977 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
2978 const char *buf, size_t count)
2980 struct Scsi_Host *shost = class_to_shost(dev);
2981 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2982 struct lpfc_hba *phba = vport->phba;
2983 struct completion online_compl;
2984 int stat1 = 0, stat2 = 0;
2985 unsigned int cnt = count;
2989 if (!phba->cfg_enable_hba_reset)
2991 spin_lock_irq(&phba->hbalock);
2992 if (phba->over_temp_state == HBA_OVER_TEMP) {
2993 spin_unlock_irq(&phba->hbalock);
2996 spin_unlock_irq(&phba->hbalock);
2997 /* count may include a LF at end of string */
2998 if (buf[cnt-1] == '\n')
3001 if (!phba->soft_wwn_enable)
3004 /* lock setting wwpn, wwnn down */
3005 phba->soft_wwn_enable = 0;
3007 rc = lpfc_wwn_set(buf, cnt, wwpn);
3009 /* not able to set wwpn, unlock it */
3010 phba->soft_wwn_enable = 1;
3014 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
3015 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
3016 if (phba->cfg_soft_wwnn)
3017 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
3019 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
3020 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
3022 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
3024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3025 "0463 lpfc_soft_wwpn attribute set failed to "
3026 "reinit adapter - %d\n", stat1);
3027 init_completion(&online_compl);
3028 rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
3033 wait_for_completion(&online_compl);
3035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3036 "0464 lpfc_soft_wwpn attribute set failed to "
3037 "reinit adapter - %d\n", stat2);
3038 return (stat1 || stat2) ? -EIO : count;
3040 static DEVICE_ATTR_RW(lpfc_soft_wwpn);
3043 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
3044 * @dev: class device that is converted into a Scsi_host.
3045 * @attr: device attribute, not used.
3046 * @buf: on return contains the wwnn in hexadecimal.
3048 * Returns: size of formatted string.
3051 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
3054 struct Scsi_Host *shost = class_to_shost(dev);
3055 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3056 return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
3057 (unsigned long long)phba->cfg_soft_wwnn);
3061 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
3062 * @dev: class device that is converted into a Scsi_host.
3063 * @attr: device attribute, not used.
3064 * @buf: contains the ww node name in hexadecimal.
3065 * @count: number of wwnn bytes in buf.
3068 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
3069 * value of count on success
3072 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
3073 const char *buf, size_t count)
3075 struct Scsi_Host *shost = class_to_shost(dev);
3076 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3077 unsigned int cnt = count;
3081 /* count may include a LF at end of string */
3082 if (buf[cnt-1] == '\n')
3085 if (!phba->soft_wwn_enable)
3088 rc = lpfc_wwn_set(buf, cnt, wwnn);
3090 /* Allow wwnn to be set many times, as long as the enable
3091 * is set. However, once the wwpn is set, everything locks.
3096 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
3098 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
3099 "lpfc%d: soft_wwnn set. Value will take effect upon "
3100 "setting of the soft_wwpn\n", phba->brd_no);
3104 static DEVICE_ATTR_RW(lpfc_soft_wwnn);
3107 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
3108 * Optimized Access Storage (OAS) operations.
3109 * @dev: class device that is converted into a Scsi_host.
3110 * @attr: device attribute, not used.
3111 * @buf: buffer for passing information.
3117 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr,
3120 struct Scsi_Host *shost = class_to_shost(dev);
3121 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3123 return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
3124 wwn_to_u64(phba->cfg_oas_tgt_wwpn));
3128 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for
3129 * Optimized Access Storage (OAS) operations.
3130 * @dev: class device that is converted into a Scsi_host.
3131 * @attr: device attribute, not used.
3132 * @buf: buffer for passing information.
3133 * @count: Size of the data buffer.
3136 * -EINVAL count is invalid, invalid wwpn byte invalid
3137 * -EPERM oas is not supported by hba
3138 * value of count on success
3141 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr,
3142 const char *buf, size_t count)
3144 struct Scsi_Host *shost = class_to_shost(dev);
3145 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3146 unsigned int cnt = count;
3147 uint8_t wwpn[WWN_SZ];
3153 /* count may include a LF at end of string */
3154 if (buf[cnt-1] == '\n')
3157 rc = lpfc_wwn_set(buf, cnt, wwpn);
3161 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3162 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3163 if (wwn_to_u64(wwpn) == 0)
3164 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET;
3166 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET;
3167 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
3168 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
3171 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR,
3172 lpfc_oas_tgt_show, lpfc_oas_tgt_store);
3175 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for
3176 * Optimized Access Storage (OAS) operations.
3177 * @dev: class device that is converted into a Scsi_host.
3178 * @attr: device attribute, not used.
3179 * @buf: buffer for passing information.
3185 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr,
3188 struct Scsi_Host *shost = class_to_shost(dev);
3189 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3191 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority);
3195 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for
3196 * Optimized Access Storage (OAS) operations.
3197 * @dev: class device that is converted into a Scsi_host.
3198 * @attr: device attribute, not used.
3199 * @buf: buffer for passing information.
3200 * @count: Size of the data buffer.
3203 * -EINVAL count is invalid, invalid wwpn byte invalid
3204 * -EPERM oas is not supported by hba
3205 * value of count on success
3208 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr,
3209 const char *buf, size_t count)
3211 struct Scsi_Host *shost = class_to_shost(dev);
3212 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3213 unsigned int cnt = count;
3220 /* count may include a LF at end of string */
3221 if (buf[cnt-1] == '\n')
3224 ret = kstrtoul(buf, 0, &val);
3225 if (ret || (val > 0x7f))
3229 phba->cfg_oas_priority = (uint8_t)val;
3231 phba->cfg_oas_priority = phba->cfg_XLanePriority;
3234 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR,
3235 lpfc_oas_priority_show, lpfc_oas_priority_store);
3238 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled
3239 * for Optimized Access Storage (OAS) operations.
3240 * @dev: class device that is converted into a Scsi_host.
3241 * @attr: device attribute, not used.
3242 * @buf: buffer for passing information.
3245 * value of count on success
3248 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr,
3251 struct Scsi_Host *shost = class_to_shost(dev);
3252 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3254 return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
3255 wwn_to_u64(phba->cfg_oas_vpt_wwpn));
3259 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled
3260 * for Optimized Access Storage (OAS) operations.
3261 * @dev: class device that is converted into a Scsi_host.
3262 * @attr: device attribute, not used.
3263 * @buf: buffer for passing information.
3264 * @count: Size of the data buffer.
3267 * -EINVAL count is invalid, invalid wwpn byte invalid
3268 * -EPERM oas is not supported by hba
3269 * value of count on success
3272 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr,
3273 const char *buf, size_t count)
3275 struct Scsi_Host *shost = class_to_shost(dev);
3276 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3277 unsigned int cnt = count;
3278 uint8_t wwpn[WWN_SZ];
3284 /* count may include a LF at end of string */
3285 if (buf[cnt-1] == '\n')
3288 rc = lpfc_wwn_set(buf, cnt, wwpn);
3292 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3293 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
3294 if (wwn_to_u64(wwpn) == 0)
3295 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT;
3297 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT;
3298 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
3299 if (phba->cfg_oas_priority == 0)
3300 phba->cfg_oas_priority = phba->cfg_XLanePriority;
3301 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
3304 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR,
3305 lpfc_oas_vpt_show, lpfc_oas_vpt_store);
3308 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled)
3309 * of whether luns will be enabled or disabled
3310 * for Optimized Access Storage (OAS) operations.
3311 * @dev: class device that is converted into a Scsi_host.
3312 * @attr: device attribute, not used.
3313 * @buf: buffer for passing information.
3316 * size of formatted string.
3319 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr,
3322 struct Scsi_Host *shost = class_to_shost(dev);
3323 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3325 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
3329 * lpfc_oas_lun_state_store - Store the state (enabled or disabled)
3330 * of whether luns will be enabled or disabled
3331 * for Optimized Access Storage (OAS) operations.
3332 * @dev: class device that is converted into a Scsi_host.
3333 * @attr: device attribute, not used.
3334 * @buf: buffer for passing information.
3335 * @count: Size of the data buffer.
3338 * -EINVAL count is invalid, invalid wwpn byte invalid
3339 * -EPERM oas is not supported by hba
3340 * value of count on success
3343 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr,
3344 const char *buf, size_t count)
3346 struct Scsi_Host *shost = class_to_shost(dev);
3347 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3353 if (!isdigit(buf[0]))
3356 if (sscanf(buf, "%i", &val) != 1)
3359 if ((val != 0) && (val != 1))
3362 phba->cfg_oas_lun_state = val;
3365 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR,
3366 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store);
3369 * lpfc_oas_lun_status_show - Return the status of the Optimized Access
3370 * Storage (OAS) lun returned by the
3371 * lpfc_oas_lun_show function.
3372 * @dev: class device that is converted into a Scsi_host.
3373 * @attr: device attribute, not used.
3374 * @buf: buffer for passing information.
3377 * size of formatted string.
3380 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr,
3383 struct Scsi_Host *shost = class_to_shost(dev);
3384 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3386 if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
3389 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
3391 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
3392 lpfc_oas_lun_status_show, NULL);
3396 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage
3398 * @phba: lpfc_hba pointer.
3399 * @vpt_wwpn: wwpn of the vport associated with the returned lun
3400 * @tgt_wwpn: wwpn of the target associated with the returned lun
3401 * @lun: the fc lun for setting oas state.
3402 * @oas_state: the oas state to be set to the lun.
3407 * -EPERM OAS is not enabled or not supported by this port.
3411 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
3412 uint8_t tgt_wwpn[], uint64_t lun,
3413 uint32_t oas_state, uint8_t pri)
3422 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
3423 (struct lpfc_name *)tgt_wwpn,
3427 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
3428 (struct lpfc_name *)tgt_wwpn, lun, pri);
3435 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized
3436 * Access Storage (OAS) operations.
3437 * @phba: lpfc_hba pointer.
3438 * @vpt_wwpn: wwpn of the vport associated with the returned lun
3439 * @tgt_wwpn: wwpn of the target associated with the returned lun
3440 * @lun_status: status of the lun returned lun
3441 * @lun_pri: priority of the lun returned lun
3443 * Returns the first or next lun enabled for OAS operations for the vport/target
3444 * specified. If a lun is found, its vport wwpn, target wwpn and status is
3445 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned.
3448 * lun that is OAS enabled for the vport/target
3449 * NOT_OAS_ENABLED_LUN when no oas enabled lun found.
3452 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
3453 uint8_t tgt_wwpn[], uint32_t *lun_status,
3458 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn)
3459 return NOT_OAS_ENABLED_LUN;
3460 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *)
3461 phba->sli4_hba.oas_next_vpt_wwpn,
3462 (struct lpfc_name *)
3463 phba->sli4_hba.oas_next_tgt_wwpn,
3464 &phba->sli4_hba.oas_next_lun,
3465 (struct lpfc_name *)vpt_wwpn,
3466 (struct lpfc_name *)tgt_wwpn,
3467 &found_lun, lun_status, lun_pri))
3470 return NOT_OAS_ENABLED_LUN;
3474 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations
3475 * @phba: lpfc_hba pointer.
3476 * @vpt_wwpn: vport wwpn by reference.
3477 * @tgt_wwpn: target wwpn by reference.
3478 * @lun: the fc lun for setting oas state.
3479 * @oas_state: the oas state to be set to the oas_lun.
3482 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE)
3483 * a lun for OAS operations.
3487 * -ENOMEM: failed to enable an lun for OAS operations
3488 * -EPERM: OAS is not enabled
3491 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
3492 uint8_t tgt_wwpn[], uint64_t lun,
3493 uint32_t oas_state, uint8_t pri)
3498 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun,
3504 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target
3505 * @dev: class device that is converted into a Scsi_host.
3506 * @attr: device attribute, not used.
3507 * @buf: buffer for passing information.
3509 * This routine returns a lun enabled for OAS each time the function
3513 * SUCCESS: size of formatted string.
3514 * -EFAULT: target or vport wwpn was not set properly.
3515 * -EPERM: oas is not enabled.
3518 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr,
3521 struct Scsi_Host *shost = class_to_shost(dev);
3522 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3530 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
3531 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT))
3534 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
3535 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET))
3538 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn,
3539 phba->cfg_oas_tgt_wwpn,
3540 &phba->cfg_oas_lun_status,
3541 &phba->cfg_oas_priority);
3542 if (oas_lun != NOT_OAS_ENABLED_LUN)
3543 phba->cfg_oas_flags |= OAS_LUN_VALID;
3545 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
3551 * lpfc_oas_lun_store - Sets the OAS state for lun
3552 * @dev: class device that is converted into a Scsi_host.
3553 * @attr: device attribute, not used.
3554 * @buf: buffer for passing information.
3555 * @count: size of the formatting string
3557 * This function sets the OAS state for lun. Before this function is called,
3558 * the vport wwpn, target wwpn, and oas state need to be set.
3561 * SUCCESS: size of formatted string.
3562 * -EFAULT: target or vport wwpn was not set properly.
3563 * -EPERM: oas is not enabled.
3564 * size of formatted string.
3567 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr,
3568 const char *buf, size_t count)
3570 struct Scsi_Host *shost = class_to_shost(dev);
3571 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3579 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
3582 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
3585 if (!isdigit(buf[0]))
3588 if (sscanf(buf, "0x%llx", &scsi_lun) != 1)
3591 pri = phba->cfg_oas_priority;
3593 pri = phba->cfg_XLanePriority;
3595 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3596 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx "
3597 "priority 0x%x with oas state %d\n",
3598 wwn_to_u64(phba->cfg_oas_vpt_wwpn),
3599 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun,
3600 pri, phba->cfg_oas_lun_state);
3602 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn,
3603 phba->cfg_oas_tgt_wwpn, scsi_lun,
3604 phba->cfg_oas_lun_state, pri);
3610 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR,
3611 lpfc_oas_lun_show, lpfc_oas_lun_store);
3613 int lpfc_enable_nvmet_cnt;
3614 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = {
3615 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
3616 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
3617 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444);
3618 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target");
3620 static int lpfc_poll = 0;
3621 module_param(lpfc_poll, int, S_IRUGO);
3622 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
3624 " 1 - poll with interrupts enabled"
3625 " 3 - poll and disable FCP ring interrupts");
3627 static DEVICE_ATTR_RW(lpfc_poll);
3629 int lpfc_no_hba_reset_cnt;
3630 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = {
3631 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
3632 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444);
3633 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset");
3635 LPFC_ATTR(sli_mode, 3, 3, 3,
3636 "SLI mode selector: 3 - select SLI-3");
3638 LPFC_ATTR_R(enable_npiv, 1, 0, 1,
3639 "Enable NPIV functionality");
3641 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
3642 "FCF Fast failover=1 Priority failover=2");
3645 * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of
3647 * The range is [0,1]. Default value is 0
3648 * 0, IO completes after ABTS issued (default).
3649 * 1, IO completes after receipt of ABTS response or timeout.
3651 LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion");
3654 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures
3655 # 0x0 = disabled, XRI/OXID use not tracked.
3656 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent.
3657 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent.
3659 LPFC_ATTR_R(enable_rrq, 2, 0, 2,
3660 "Enable RRQ functionality");
3663 # lpfc_suppress_link_up: Bring link up at initialization
3664 # 0x0 = bring link up (issue MBX_INIT_LINK)
3665 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
3666 # 0x2 = never bring up link
3667 # Default value is 0.
3669 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
3670 LPFC_DELAY_INIT_LINK_INDEFINITELY,
3671 "Suppress Link Up at initialization");
3674 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf)
3676 struct Scsi_Host *shost = class_to_shost(dev);
3677 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3679 return scnprintf(buf, PAGE_SIZE, "%d\n",
3680 phba->sli4_hba.pc_sli4_params.pls);
3682 static DEVICE_ATTR(pls, 0444,
3683 lpfc_pls_show, NULL);
3686 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf)
3688 struct Scsi_Host *shost = class_to_shost(dev);
3689 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3691 return scnprintf(buf, PAGE_SIZE, "%d\n",
3692 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0);
3694 static DEVICE_ATTR(pt, 0444,
3695 lpfc_pt_show, NULL);
3698 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
3706 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
3708 struct Scsi_Host *shost = class_to_shost(dev);
3709 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
3711 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
3714 static DEVICE_ATTR(iocb_hw, S_IRUGO,
3715 lpfc_iocb_hw_show, NULL);
3717 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
3719 struct Scsi_Host *shost = class_to_shost(dev);
3720 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
3721 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba);
3723 return scnprintf(buf, PAGE_SIZE, "%d\n",
3724 pring ? pring->txq_max : 0);
3727 static DEVICE_ATTR(txq_hw, S_IRUGO,
3728 lpfc_txq_hw_show, NULL);
3730 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
3733 struct Scsi_Host *shost = class_to_shost(dev);
3734 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
3735 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba);
3737 return scnprintf(buf, PAGE_SIZE, "%d\n",
3738 pring ? pring->txcmplq_max : 0);
3741 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
3742 lpfc_txcmplq_hw_show, NULL);
3745 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
3746 # until the timer expires. Value range is [0,255]. Default value is 30.
3748 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
3749 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
3750 module_param(lpfc_nodev_tmo, int, 0);
3751 MODULE_PARM_DESC(lpfc_nodev_tmo,
3752 "Seconds driver will hold I/O waiting "
3753 "for a device to come back");
3756 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
3757 * @dev: class converted to a Scsi_host structure.
3758 * @attr: device attribute, not used.
3759 * @buf: on return contains the dev loss timeout in decimal.
3761 * Returns: size of formatted string.
3764 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
3767 struct Scsi_Host *shost = class_to_shost(dev);
3768 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3770 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
3774 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
3775 * @vport: lpfc vport structure pointer.
3776 * @val: contains the nodev timeout value.
3779 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
3780 * a kernel error message is printed and zero is returned.
3781 * Else if val is in range then nodev tmo and devloss tmo are set to val.
3782 * Otherwise nodev tmo is set to the default value.
3785 * zero if already set or if val is in range
3786 * -EINVAL val out of range
3789 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
3791 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
3792 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
3793 if (val != LPFC_DEF_DEVLOSS_TMO)
3794 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3795 "0407 Ignoring lpfc_nodev_tmo module "
3796 "parameter because lpfc_devloss_tmo "
3801 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3802 vport->cfg_nodev_tmo = val;
3803 vport->cfg_devloss_tmo = val;
3806 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3807 "0400 lpfc_nodev_tmo attribute cannot be set to"
3808 " %d, allowed range is [%d, %d]\n",
3809 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3810 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
3815 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
3816 * @vport: lpfc vport structure pointer.
3819 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
3822 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
3824 struct Scsi_Host *shost;
3825 struct lpfc_nodelist *ndlp;
3826 #if (IS_ENABLED(CONFIG_NVME_FC))
3827 struct lpfc_nvme_rport *rport;
3828 struct nvme_fc_remote_port *remoteport = NULL;
3831 shost = lpfc_shost_from_vport(vport);
3832 spin_lock_irq(shost->host_lock);
3833 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3835 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
3836 #if (IS_ENABLED(CONFIG_NVME_FC))
3837 spin_lock(&ndlp->lock);
3838 rport = lpfc_ndlp_get_nrport(ndlp);
3840 remoteport = rport->remoteport;
3841 spin_unlock(&ndlp->lock);
3842 if (rport && remoteport)
3843 nvme_fc_set_remoteport_devloss(remoteport,
3844 vport->cfg_devloss_tmo);
3847 spin_unlock_irq(shost->host_lock);
3851 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
3852 * @vport: lpfc vport structure pointer.
3853 * @val: contains the tmo value.
3856 * If the devloss tmo is already set or the vport dev loss tmo has changed
3857 * then a kernel error message is printed and zero is returned.
3858 * Else if val is in range then nodev tmo and devloss tmo are set to val.
3859 * Otherwise nodev tmo is set to the default value.
3862 * zero if already set or if val is in range
3863 * -EINVAL val out of range
3866 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
3868 if (vport->dev_loss_tmo_changed ||
3869 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
3870 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3871 "0401 Ignoring change to lpfc_nodev_tmo "
3872 "because lpfc_devloss_tmo is set.\n");
3875 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3876 vport->cfg_nodev_tmo = val;
3877 vport->cfg_devloss_tmo = val;
3879 * For compat: set the fc_host dev loss so new rports
3880 * will get the value.
3882 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3883 lpfc_update_rport_devloss_tmo(vport);
3886 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3887 "0403 lpfc_nodev_tmo attribute cannot be set to "
3888 "%d, allowed range is [%d, %d]\n",
3889 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3893 lpfc_vport_param_store(nodev_tmo)
3895 static DEVICE_ATTR_RW(lpfc_nodev_tmo);
3898 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
3899 # disappear until the timer expires. Value range is [0,255]. Default
3902 module_param(lpfc_devloss_tmo, int, S_IRUGO);
3903 MODULE_PARM_DESC(lpfc_devloss_tmo,
3904 "Seconds driver will hold I/O waiting "
3905 "for a device to come back");
3906 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
3907 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
3908 lpfc_vport_param_show(devloss_tmo)
3911 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
3912 * @vport: lpfc vport structure pointer.
3913 * @val: contains the tmo value.
3916 * If val is in a valid range then set the vport nodev tmo,
3917 * devloss tmo, also set the vport dev loss tmo changed flag.
3918 * Else a kernel error message is printed.
3921 * zero if val is in range
3922 * -EINVAL val out of range
3925 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
3927 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3928 vport->cfg_nodev_tmo = val;
3929 vport->cfg_devloss_tmo = val;
3930 vport->dev_loss_tmo_changed = 1;
3931 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3932 lpfc_update_rport_devloss_tmo(vport);
3936 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3937 "0404 lpfc_devloss_tmo attribute cannot be set to "
3938 "%d, allowed range is [%d, %d]\n",
3939 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3943 lpfc_vport_param_store(devloss_tmo)
3944 static DEVICE_ATTR_RW(lpfc_devloss_tmo);
3947 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it
3948 * lpfc_suppress_rsp = 0 Disable
3949 * lpfc_suppress_rsp = 1 Enable (default)
3952 LPFC_ATTR_R(suppress_rsp, 1, 0, 1,
3953 "Enable suppress rsp feature is firmware supports it");
3956 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds
3957 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs
3958 * lpfc_nvmet_mrq = 1 use a single RQ pair
3959 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ
3962 LPFC_ATTR_R(nvmet_mrq,
3963 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX,
3964 "Specify number of RQ pairs for processing NVMET cmds");
3967 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post
3968 * to each NVMET RQ. Range 64 to 2048, default is 512.
3970 LPFC_ATTR_R(nvmet_mrq_post,
3971 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST,
3972 LPFC_NVMET_RQE_DEF_COUNT,
3973 "Specify number of RQ buffers to initially post");
3976 * lpfc_enable_fc4_type: Defines what FC4 types are supported.
3977 * Supported Values: 1 - register just FCP
3978 * 3 - register both FCP and NVME
3979 * Supported values are [1,3]. Default value is 3
3981 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH,
3982 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH,
3983 "Enable FC4 Protocol support - FCP / NVME");
3986 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
3987 # deluged with LOTS of information.
3988 # You can set a bit mask to record specific types of verbose messages:
3989 # See lpfc_logmsh.h for definitions.
3991 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
3992 "Verbose logging bit-mask");
3995 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
3996 # objects that have been registered with the nameserver after login.
3998 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
3999 "Deregister nameserver objects before LOGO");
4002 # lun_queue_depth: This parameter is used to limit the number of outstanding
4003 # commands per FCP LUN.
4005 LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512,
4006 "Max number of FCP commands we can queue to a specific LUN");
4009 # tgt_queue_depth: This parameter is used to limit the number of outstanding
4010 # commands per target port. Value range is [10,65535]. Default value is 65535.
4012 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH;
4013 module_param(lpfc_tgt_queue_depth, uint, 0444);
4014 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth");
4015 lpfc_vport_param_show(tgt_queue_depth);
4016 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH,
4017 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH);
4020 * lpfc_tgt_queue_depth_set: Sets an attribute value.
4021 * @vport: lpfc vport structure pointer.
4022 * @val: integer attribute value.
4024 * Description: Sets the parameter to the new value.
4028 * -EINVAL if val is invalid
4031 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val)
4033 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4034 struct lpfc_nodelist *ndlp;
4036 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH))
4039 if (val == vport->cfg_tgt_queue_depth)
4042 spin_lock_irq(shost->host_lock);
4043 vport->cfg_tgt_queue_depth = val;
4045 /* Next loop thru nodelist and change cmd_qdepth */
4046 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
4047 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4049 spin_unlock_irq(shost->host_lock);
4053 lpfc_vport_param_store(tgt_queue_depth);
4054 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth);
4057 # hba_queue_depth: This parameter is used to limit the number of outstanding
4058 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
4059 # value is greater than the maximum number of exchanges supported by the HBA,
4060 # then maximum number of exchanges supported by the HBA is used to determine
4061 # the hba_queue_depth.
4063 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
4064 "Max number of FCP commands we can queue to a lpfc HBA");
4067 # peer_port_login: This parameter allows/prevents logins
4068 # between peer ports hosted on the same physical port.
4069 # When this parameter is set 0 peer ports of same physical port
4070 # are not allowed to login to each other.
4071 # When this parameter is set 1 peer ports of same physical port
4072 # are allowed to login to each other.
4073 # Default value of this parameter is 0.
4075 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
4076 "Allow peer ports on the same physical port to login to each "
4080 # restrict_login: This parameter allows/prevents logins
4081 # between Virtual Ports and remote initiators.
4082 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
4083 # other initiators and will attempt to PLOGI all remote ports.
4084 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
4085 # remote ports and will not attempt to PLOGI to other initiators.
4086 # This parameter does not restrict to the physical port.
4087 # This parameter does not restrict logins to Fabric resident remote ports.
4088 # Default value of this parameter is 1.
4090 static int lpfc_restrict_login = 1;
4091 module_param(lpfc_restrict_login, int, S_IRUGO);
4092 MODULE_PARM_DESC(lpfc_restrict_login,
4093 "Restrict virtual ports login to remote initiators.");
4094 lpfc_vport_param_show(restrict_login);
4097 * lpfc_restrict_login_init - Set the vport restrict login flag
4098 * @vport: lpfc vport structure pointer.
4099 * @val: contains the restrict login value.
4102 * If val is not in a valid range then log a kernel error message and set
4103 * the vport restrict login to one.
4104 * If the port type is physical clear the restrict login flag and return.
4105 * Else set the restrict login flag to val.
4108 * zero if val is in range
4109 * -EINVAL val out of range
4112 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
4114 if (val < 0 || val > 1) {
4115 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4116 "0422 lpfc_restrict_login attribute cannot "
4117 "be set to %d, allowed range is [0, 1]\n",
4119 vport->cfg_restrict_login = 1;
4122 if (vport->port_type == LPFC_PHYSICAL_PORT) {
4123 vport->cfg_restrict_login = 0;
4126 vport->cfg_restrict_login = val;
4131 * lpfc_restrict_login_set - Set the vport restrict login flag
4132 * @vport: lpfc vport structure pointer.
4133 * @val: contains the restrict login value.
4136 * If val is not in a valid range then log a kernel error message and set
4137 * the vport restrict login to one.
4138 * If the port type is physical and the val is not zero log a kernel
4139 * error message, clear the restrict login flag and return zero.
4140 * Else set the restrict login flag to val.
4143 * zero if val is in range
4144 * -EINVAL val out of range
4147 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
4149 if (val < 0 || val > 1) {
4150 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4151 "0425 lpfc_restrict_login attribute cannot "
4152 "be set to %d, allowed range is [0, 1]\n",
4154 vport->cfg_restrict_login = 1;
4157 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
4158 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4159 "0468 lpfc_restrict_login must be 0 for "
4160 "Physical ports.\n");
4161 vport->cfg_restrict_login = 0;
4164 vport->cfg_restrict_login = val;
4167 lpfc_vport_param_store(restrict_login);
4168 static DEVICE_ATTR_RW(lpfc_restrict_login);
4171 # Some disk devices have a "select ID" or "select Target" capability.
4172 # From a protocol standpoint "select ID" usually means select the
4173 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
4174 # annex" which contains a table that maps a "select ID" (a number
4175 # between 0 and 7F) to an ALPA. By default, for compatibility with
4176 # older drivers, the lpfc driver scans this table from low ALPA to high
4179 # Turning on the scan-down variable (on = 1, off = 0) will
4180 # cause the lpfc driver to use an inverted table, effectively
4181 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
4183 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
4184 # and will not work across a fabric. Also this parameter will take
4185 # effect only in the case when ALPA map is not available.)
4187 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
4188 "Start scanning for devices from highest ALPA to lowest");
4191 # lpfc_topology: link topology for init link
4192 # 0x0 = attempt loop mode then point-to-point
4193 # 0x01 = internal loopback mode
4194 # 0x02 = attempt point-to-point mode only
4195 # 0x04 = attempt loop mode only
4196 # 0x06 = attempt point-to-point mode then loop
4197 # Set point-to-point mode if you want to run as an N_Port.
4198 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
4199 # Default value is 0.
4201 LPFC_ATTR(topology, 0, 0, 6,
4202 "Select Fibre Channel topology");
4205 * lpfc_topology_store - Set the adapters topology field
4206 * @dev: class device that is converted into a scsi_host.
4207 * @attr:device attribute, not used.
4208 * @buf: buffer for passing information.
4209 * @count: size of the data buffer.
4212 * If val is in a valid range then set the adapter's topology field and
4213 * issue a lip; if the lip fails reset the topology to the old value.
4215 * If the value is not in range log a kernel error message and return an error.
4218 * zero if val is in range and lip okay
4219 * non-zero return value from lpfc_issue_lip()
4220 * -EINVAL val out of range
4223 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
4224 const char *buf, size_t count)
4226 struct Scsi_Host *shost = class_to_shost(dev);
4227 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4228 struct lpfc_hba *phba = vport->phba;
4231 const char *val_buf = buf;
4234 u8 sli_family, if_type;
4236 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
4238 val_buf = &buf[strlen("nolip ")];
4241 if (!isdigit(val_buf[0]))
4243 if (sscanf(val_buf, "%i", &val) != 1)
4246 if (val >= 0 && val <= 6) {
4247 prev_val = phba->cfg_topology;
4248 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
4250 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4251 "3113 Loop mode not supported at speed %d\n",
4256 * The 'topology' is not a configurable parameter if :
4257 * - persistent topology enabled
4258 * - ASIC_GEN_NUM >= 0xC, with no private loop support
4260 sli_family = bf_get(lpfc_sli_intf_sli_family,
4261 &phba->sli4_hba.sli_intf);
4262 if_type = bf_get(lpfc_sli_intf_if_type,
4263 &phba->sli4_hba.sli_intf);
4264 if ((phba->hba_flag & HBA_PERSISTENT_TOPO ||
4265 (!phba->sli4_hba.pc_sli4_params.pls &&
4266 (sli_family == LPFC_SLI_INTF_FAMILY_G6 ||
4267 if_type == LPFC_SLI_INTF_IF_TYPE_6))) &&
4269 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4270 "3114 Loop mode not supported\n");
4273 phba->cfg_topology = val;
4277 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4278 "3054 lpfc_topology changed from %d to %d\n",
4280 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4)
4281 phba->fc_topology_changed = 1;
4282 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
4284 phba->cfg_topology = prev_val;
4289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4290 "%d:0467 lpfc_topology attribute cannot be set to %d, "
4291 "allowed range is [0, 6]\n",
4296 lpfc_param_show(topology)
4297 static DEVICE_ATTR_RW(lpfc_topology);
4300 * lpfc_static_vport_show: Read callback function for
4301 * lpfc_static_vport sysfs file.
4302 * @dev: Pointer to class device object.
4303 * @attr: device attribute structure.
4304 * @buf: Data buffer.
4306 * This function is the read call back function for
4307 * lpfc_static_vport sysfs file. The lpfc_static_vport
4308 * sysfs file report the mageability of the vport.
4311 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
4314 struct Scsi_Host *shost = class_to_shost(dev);
4315 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4316 if (vport->vport_flag & STATIC_VPORT)
4317 sprintf(buf, "1\n");
4319 sprintf(buf, "0\n");
4325 * Sysfs attribute to control the statistical data collection.
4327 static DEVICE_ATTR_RO(lpfc_static_vport);
4330 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
4331 * @dev: Pointer to class device.
4333 * @buf: Data buffer.
4334 * @count: Size of the data buffer.
4336 * This function get called when a user write to the lpfc_stat_data_ctrl
4337 * sysfs file. This function parse the command written to the sysfs file
4338 * and take appropriate action. These commands are used for controlling
4339 * driver statistical data collection.
4340 * Following are the command this function handles.
4342 * setbucket <bucket_type> <base> <step>
4343 * = Set the latency buckets.
4344 * destroybucket = destroy all the buckets.
4345 * start = start data collection
4346 * stop = stop data collection
4347 * reset = reset the collected data
4350 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
4351 const char *buf, size_t count)
4353 struct Scsi_Host *shost = class_to_shost(dev);
4354 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4355 struct lpfc_hba *phba = vport->phba;
4356 #define LPFC_MAX_DATA_CTRL_LEN 1024
4357 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
4359 char *str_ptr, *token;
4360 struct lpfc_vport **vports;
4361 struct Scsi_Host *v_shost;
4362 char *bucket_type_str, *base_str, *step_str;
4363 unsigned long base, step, bucket_type;
4365 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
4366 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
4369 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN);
4370 str_ptr = &bucket_data[0];
4371 /* Ignore this token - this is command token */
4372 token = strsep(&str_ptr, "\t ");
4376 bucket_type_str = strsep(&str_ptr, "\t ");
4377 if (!bucket_type_str)
4380 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
4381 bucket_type = LPFC_LINEAR_BUCKET;
4382 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
4383 bucket_type = LPFC_POWER2_BUCKET;
4387 base_str = strsep(&str_ptr, "\t ");
4390 base = simple_strtoul(base_str, NULL, 0);
4392 step_str = strsep(&str_ptr, "\t ");
4395 step = simple_strtoul(step_str, NULL, 0);
4399 /* Block the data collection for every vport */
4400 vports = lpfc_create_vport_work_array(phba);
4404 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4405 v_shost = lpfc_shost_from_vport(vports[i]);
4406 spin_lock_irq(v_shost->host_lock);
4407 /* Block and reset data collection */
4408 vports[i]->stat_data_blocked = 1;
4409 if (vports[i]->stat_data_enabled)
4410 lpfc_vport_reset_stat_data(vports[i]);
4411 spin_unlock_irq(v_shost->host_lock);
4414 /* Set the bucket attributes */
4415 phba->bucket_type = bucket_type;
4416 phba->bucket_base = base;
4417 phba->bucket_step = step;
4419 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4420 v_shost = lpfc_shost_from_vport(vports[i]);
4422 /* Unblock data collection */
4423 spin_lock_irq(v_shost->host_lock);
4424 vports[i]->stat_data_blocked = 0;
4425 spin_unlock_irq(v_shost->host_lock);
4427 lpfc_destroy_vport_work_array(phba, vports);
4431 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
4432 vports = lpfc_create_vport_work_array(phba);
4436 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
4437 v_shost = lpfc_shost_from_vport(vports[i]);
4438 spin_lock_irq(shost->host_lock);
4439 vports[i]->stat_data_blocked = 1;
4440 lpfc_free_bucket(vport);
4441 vport->stat_data_enabled = 0;
4442 vports[i]->stat_data_blocked = 0;
4443 spin_unlock_irq(shost->host_lock);
4445 lpfc_destroy_vport_work_array(phba, vports);
4446 phba->bucket_type = LPFC_NO_BUCKET;
4447 phba->bucket_base = 0;
4448 phba->bucket_step = 0;
4452 if (!strncmp(buf, "start", strlen("start"))) {
4453 /* If no buckets configured return error */
4454 if (phba->bucket_type == LPFC_NO_BUCKET)
4456 spin_lock_irq(shost->host_lock);
4457 if (vport->stat_data_enabled) {
4458 spin_unlock_irq(shost->host_lock);
4461 lpfc_alloc_bucket(vport);
4462 vport->stat_data_enabled = 1;
4463 spin_unlock_irq(shost->host_lock);
4467 if (!strncmp(buf, "stop", strlen("stop"))) {
4468 spin_lock_irq(shost->host_lock);
4469 if (vport->stat_data_enabled == 0) {
4470 spin_unlock_irq(shost->host_lock);
4473 lpfc_free_bucket(vport);
4474 vport->stat_data_enabled = 0;
4475 spin_unlock_irq(shost->host_lock);
4479 if (!strncmp(buf, "reset", strlen("reset"))) {
4480 if ((phba->bucket_type == LPFC_NO_BUCKET)
4481 || !vport->stat_data_enabled)
4483 spin_lock_irq(shost->host_lock);
4484 vport->stat_data_blocked = 1;
4485 lpfc_vport_reset_stat_data(vport);
4486 vport->stat_data_blocked = 0;
4487 spin_unlock_irq(shost->host_lock);
4495 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
4496 * @dev: Pointer to class device.
4498 * @buf: Data buffer.
4500 * This function is the read call back function for
4501 * lpfc_stat_data_ctrl sysfs file. This function report the
4502 * current statistical data collection state.
4505 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
4508 struct Scsi_Host *shost = class_to_shost(dev);
4509 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4510 struct lpfc_hba *phba = vport->phba;
4514 unsigned long bucket_value;
4516 switch (phba->bucket_type) {
4517 case LPFC_LINEAR_BUCKET:
4518 bucket_type = "linear";
4520 case LPFC_POWER2_BUCKET:
4521 bucket_type = "power2";
4524 bucket_type = "No Bucket";
4528 sprintf(&buf[index], "Statistical Data enabled :%d, "
4529 "blocked :%d, Bucket type :%s, Bucket base :%d,"
4530 " Bucket step :%d\nLatency Ranges :",
4531 vport->stat_data_enabled, vport->stat_data_blocked,
4532 bucket_type, phba->bucket_base, phba->bucket_step);
4533 index = strlen(buf);
4534 if (phba->bucket_type != LPFC_NO_BUCKET) {
4535 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
4536 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
4537 bucket_value = phba->bucket_base +
4538 phba->bucket_step * i;
4540 bucket_value = phba->bucket_base +
4541 (1 << i) * phba->bucket_step;
4543 if (index + 10 > PAGE_SIZE)
4545 sprintf(&buf[index], "%08ld ", bucket_value);
4546 index = strlen(buf);
4549 sprintf(&buf[index], "\n");
4554 * Sysfs attribute to control the statistical data collection.
4556 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl);
4559 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
4563 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
4566 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
4567 #define MAX_STAT_DATA_SIZE_PER_TARGET \
4568 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
4572 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
4574 * @kobj: Pointer to the kernel object
4575 * @bin_attr: Attribute object
4576 * @buf: Buffer pointer
4578 * @count: Buffer size
4580 * This function is the read call back function for lpfc_drvr_stat_data
4581 * sysfs file. This function export the statistical data to user
4585 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
4586 struct bin_attribute *bin_attr,
4587 char *buf, loff_t off, size_t count)
4589 struct device *dev = container_of(kobj, struct device,
4591 struct Scsi_Host *shost = class_to_shost(dev);
4592 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4593 struct lpfc_hba *phba = vport->phba;
4594 int i = 0, index = 0;
4595 unsigned long nport_index;
4596 struct lpfc_nodelist *ndlp = NULL;
4597 nport_index = (unsigned long)off /
4598 MAX_STAT_DATA_SIZE_PER_TARGET;
4600 if (!vport->stat_data_enabled || vport->stat_data_blocked
4601 || (phba->bucket_type == LPFC_NO_BUCKET))
4604 spin_lock_irq(shost->host_lock);
4605 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
4606 if (!ndlp->lat_data)
4609 if (nport_index > 0) {
4614 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
4618 if (!ndlp->lat_data)
4622 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
4623 ndlp->nlp_portname.u.wwn[0],
4624 ndlp->nlp_portname.u.wwn[1],
4625 ndlp->nlp_portname.u.wwn[2],
4626 ndlp->nlp_portname.u.wwn[3],
4627 ndlp->nlp_portname.u.wwn[4],
4628 ndlp->nlp_portname.u.wwn[5],
4629 ndlp->nlp_portname.u.wwn[6],
4630 ndlp->nlp_portname.u.wwn[7]);
4632 index = strlen(buf);
4634 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
4635 sprintf(&buf[index], "%010u,",
4636 ndlp->lat_data[i].cmd_count);
4637 index = strlen(buf);
4639 sprintf(&buf[index], "\n");
4640 index = strlen(buf);
4642 spin_unlock_irq(shost->host_lock);
4646 static struct bin_attribute sysfs_drvr_stat_data_attr = {
4648 .name = "lpfc_drvr_stat_data",
4651 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
4652 .read = sysfs_drvr_stat_data_read,
4657 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
4659 # Value range is [0,16]. Default value is 0.
4662 * lpfc_link_speed_store - Set the adapters link speed
4663 * @dev: Pointer to class device.
4665 * @buf: Data buffer.
4666 * @count: Size of the data buffer.
4669 * If val is in a valid range then set the adapter's link speed field and
4670 * issue a lip; if the lip fails reset the link speed to the old value.
4673 * If the value is not in range log a kernel error message and return an error.
4676 * zero if val is in range and lip okay.
4677 * non-zero return value from lpfc_issue_lip()
4678 * -EINVAL val out of range
4681 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
4682 const char *buf, size_t count)
4684 struct Scsi_Host *shost = class_to_shost(dev);
4685 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4686 struct lpfc_hba *phba = vport->phba;
4687 int val = LPFC_USER_LINK_SPEED_AUTO;
4689 const char *val_buf = buf;
4691 uint32_t prev_val, if_type;
4693 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
4694 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 &&
4695 phba->hba_flag & HBA_FORCED_LINK_SPEED)
4698 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
4700 val_buf = &buf[strlen("nolip ")];
4703 if (!isdigit(val_buf[0]))
4705 if (sscanf(val_buf, "%i", &val) != 1)
4708 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4709 "3055 lpfc_link_speed changed from %d to %d %s\n",
4710 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
4712 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
4713 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
4714 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
4715 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
4716 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
4717 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) ||
4718 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) ||
4719 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) {
4720 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4721 "2879 lpfc_link_speed attribute cannot be set "
4722 "to %d. Speed is not supported by this port.\n",
4726 if (val >= LPFC_USER_LINK_SPEED_16G &&
4727 phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
4728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4729 "3112 lpfc_link_speed attribute cannot be set "
4730 "to %d. Speed is not supported in loop mode.\n",
4736 case LPFC_USER_LINK_SPEED_AUTO:
4737 case LPFC_USER_LINK_SPEED_1G:
4738 case LPFC_USER_LINK_SPEED_2G:
4739 case LPFC_USER_LINK_SPEED_4G:
4740 case LPFC_USER_LINK_SPEED_8G:
4741 case LPFC_USER_LINK_SPEED_16G:
4742 case LPFC_USER_LINK_SPEED_32G:
4743 case LPFC_USER_LINK_SPEED_64G:
4744 prev_val = phba->cfg_link_speed;
4745 phba->cfg_link_speed = val;
4749 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
4751 phba->cfg_link_speed = prev_val;
4759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4760 "0469 lpfc_link_speed attribute cannot be set to %d, "
4761 "allowed values are [%s]\n",
4762 val, LPFC_LINK_SPEED_STRING);
4767 static int lpfc_link_speed = 0;
4768 module_param(lpfc_link_speed, int, S_IRUGO);
4769 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
4770 lpfc_param_show(link_speed)
4773 * lpfc_link_speed_init - Set the adapters link speed
4774 * @phba: lpfc_hba pointer.
4775 * @val: link speed value.
4778 * If val is in a valid range then set the adapter's link speed field.
4781 * If the value is not in range log a kernel error message, clear the link
4782 * speed and return an error.
4785 * zero if val saved.
4786 * -EINVAL val out of range
4789 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
4791 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
4792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4793 "3111 lpfc_link_speed of %d cannot "
4794 "support loop mode, setting topology to default.\n",
4796 phba->cfg_topology = 0;
4800 case LPFC_USER_LINK_SPEED_AUTO:
4801 case LPFC_USER_LINK_SPEED_1G:
4802 case LPFC_USER_LINK_SPEED_2G:
4803 case LPFC_USER_LINK_SPEED_4G:
4804 case LPFC_USER_LINK_SPEED_8G:
4805 case LPFC_USER_LINK_SPEED_16G:
4806 case LPFC_USER_LINK_SPEED_32G:
4807 case LPFC_USER_LINK_SPEED_64G:
4808 phba->cfg_link_speed = val;
4811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4812 "0405 lpfc_link_speed attribute cannot "
4813 "be set to %d, allowed values are "
4814 "["LPFC_LINK_SPEED_STRING"]\n", val);
4815 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
4820 static DEVICE_ATTR_RW(lpfc_link_speed);
4823 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
4824 # 0 = aer disabled or not supported
4825 # 1 = aer supported and enabled (default)
4826 # Value range is [0,1]. Default value is 1.
4828 LPFC_ATTR(aer_support, 1, 0, 1,
4829 "Enable PCIe device AER support");
4830 lpfc_param_show(aer_support)
4833 * lpfc_aer_support_store - Set the adapter for aer support
4835 * @dev: class device that is converted into a Scsi_host.
4836 * @attr: device attribute, not used.
4837 * @buf: containing enable or disable aer flag.
4838 * @count: unused variable.
4841 * If the val is 1 and currently the device's AER capability was not
4842 * enabled, invoke the kernel's enable AER helper routine, trying to
4843 * enable the device's AER capability. If the helper routine enabling
4844 * AER returns success, update the device's cfg_aer_support flag to
4845 * indicate AER is supported by the device; otherwise, if the device
4846 * AER capability is already enabled to support AER, then do nothing.
4848 * If the val is 0 and currently the device's AER support was enabled,
4849 * invoke the kernel's disable AER helper routine. After that, update
4850 * the device's cfg_aer_support flag to indicate AER is not supported
4851 * by the device; otherwise, if the device AER capability is already
4852 * disabled from supporting AER, then do nothing.
4855 * length of the buf on success if val is in range the intended mode
4857 * -EINVAL if val out of range or intended mode is not supported.
4860 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
4861 const char *buf, size_t count)
4863 struct Scsi_Host *shost = class_to_shost(dev);
4864 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4865 struct lpfc_hba *phba = vport->phba;
4866 int val = 0, rc = -EINVAL;
4868 if (!isdigit(buf[0]))
4870 if (sscanf(buf, "%i", &val) != 1)
4875 if (phba->hba_flag & HBA_AER_ENABLED) {
4876 rc = pci_disable_pcie_error_reporting(phba->pcidev);
4878 spin_lock_irq(&phba->hbalock);
4879 phba->hba_flag &= ~HBA_AER_ENABLED;
4880 spin_unlock_irq(&phba->hbalock);
4881 phba->cfg_aer_support = 0;
4886 phba->cfg_aer_support = 0;
4891 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
4892 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4894 spin_lock_irq(&phba->hbalock);
4895 phba->hba_flag |= HBA_AER_ENABLED;
4896 spin_unlock_irq(&phba->hbalock);
4897 phba->cfg_aer_support = 1;
4902 phba->cfg_aer_support = 1;
4913 static DEVICE_ATTR_RW(lpfc_aer_support);
4916 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
4917 * @dev: class device that is converted into a Scsi_host.
4918 * @attr: device attribute, not used.
4919 * @buf: containing flag 1 for aer cleanup state.
4920 * @count: unused variable.
4923 * If the @buf contains 1 and the device currently has the AER support
4924 * enabled, then invokes the kernel AER helper routine
4925 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable
4926 * error status register.
4931 * -EINVAL if the buf does not contain the 1 or the device is not currently
4932 * enabled with the AER support.
4935 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
4936 const char *buf, size_t count)
4938 struct Scsi_Host *shost = class_to_shost(dev);
4939 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4940 struct lpfc_hba *phba = vport->phba;
4943 if (!isdigit(buf[0]))
4945 if (sscanf(buf, "%i", &val) != 1)
4950 if (phba->hba_flag & HBA_AER_ENABLED)
4951 rc = pci_aer_clear_nonfatal_status(phba->pcidev);
4959 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
4960 lpfc_aer_cleanup_state);
4963 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
4965 * @dev: class device that is converted into a Scsi_host.
4966 * @attr: device attribute, not used.
4967 * @buf: containing the string the number of vfs to be enabled.
4968 * @count: unused variable.
4971 * When this api is called either through user sysfs, the driver shall
4972 * try to enable or disable SR-IOV virtual functions according to the
4975 * If zero virtual function has been enabled to the physical function,
4976 * the driver shall invoke the pci enable virtual function api trying
4977 * to enable the virtual functions. If the nr_vfn provided is greater
4978 * than the maximum supported, the maximum virtual function number will
4979 * be used for invoking the api; otherwise, the nr_vfn provided shall
4980 * be used for invoking the api. If the api call returned success, the
4981 * actual number of virtual functions enabled will be set to the driver
4982 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
4983 * cfg_sriov_nr_virtfn remains zero.
4985 * If none-zero virtual functions have already been enabled to the
4986 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
4987 * -EINVAL will be returned and the driver does nothing;
4989 * If the nr_vfn provided is zero and none-zero virtual functions have
4990 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
4991 * disabling virtual function api shall be invoded to disable all the
4992 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
4993 * zero. Otherwise, if zero virtual function has been enabled, do
4997 * length of the buf on success if val is in range the intended mode
4999 * -EINVAL if val out of range or intended mode is not supported.
5002 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
5003 const char *buf, size_t count)
5005 struct Scsi_Host *shost = class_to_shost(dev);
5006 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5007 struct lpfc_hba *phba = vport->phba;
5008 struct pci_dev *pdev = phba->pcidev;
5009 int val = 0, rc = -EINVAL;
5011 /* Sanity check on user data */
5012 if (!isdigit(buf[0]))
5014 if (sscanf(buf, "%i", &val) != 1)
5019 /* Request disabling virtual functions */
5021 if (phba->cfg_sriov_nr_virtfn > 0) {
5022 pci_disable_sriov(pdev);
5023 phba->cfg_sriov_nr_virtfn = 0;
5028 /* Request enabling virtual functions */
5029 if (phba->cfg_sriov_nr_virtfn > 0) {
5030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5031 "3018 There are %d virtual functions "
5032 "enabled on physical function.\n",
5033 phba->cfg_sriov_nr_virtfn);
5037 if (val <= LPFC_MAX_VFN_PER_PFN)
5038 phba->cfg_sriov_nr_virtfn = val;
5040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5041 "3019 Enabling %d virtual functions is not "
5046 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
5048 phba->cfg_sriov_nr_virtfn = 0;
5056 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN,
5057 "Enable PCIe device SR-IOV virtual fn");
5059 lpfc_param_show(sriov_nr_virtfn)
5060 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn);
5063 * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade
5065 * @dev: class device that is converted into a Scsi_host.
5066 * @attr: device attribute, not used.
5067 * @buf: containing the string the number of vfs to be enabled.
5068 * @count: unused variable.
5073 * length of the buf on success if val is in range the intended mode
5075 * -EINVAL if val out of range or intended mode is not supported.
5078 lpfc_request_firmware_upgrade_store(struct device *dev,
5079 struct device_attribute *attr,
5080 const char *buf, size_t count)
5082 struct Scsi_Host *shost = class_to_shost(dev);
5083 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5084 struct lpfc_hba *phba = vport->phba;
5087 /* Sanity check on user data */
5088 if (!isdigit(buf[0]))
5090 if (sscanf(buf, "%i", &val) != 1)
5095 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE);
5103 static int lpfc_req_fw_upgrade;
5104 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR);
5105 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade");
5106 lpfc_param_show(request_firmware_upgrade)
5109 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade
5110 * @phba: lpfc_hba pointer.
5114 * Set the initial Linux generic firmware upgrade enable or disable flag.
5117 * zero if val saved.
5118 * -EINVAL val out of range
5121 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val)
5123 if (val >= 0 && val <= 1) {
5124 phba->cfg_request_firmware_upgrade = val;
5129 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR,
5130 lpfc_request_firmware_upgrade_show,
5131 lpfc_request_firmware_upgrade_store);
5134 * lpfc_force_rscn_store
5136 * @dev: class device that is converted into a Scsi_host.
5137 * @attr: device attribute, not used.
5138 * @buf: unused string
5139 * @count: unused variable.
5142 * Force the switch to send a RSCN to all other NPorts in our zone
5143 * If we are direct connect pt2pt, build the RSCN command ourself
5144 * and send to the other NPort. Not supported for private loop.
5148 * -EIO - if command is not sent
5151 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr,
5152 const char *buf, size_t count)
5154 struct Scsi_Host *shost = class_to_shost(dev);
5155 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5158 i = lpfc_issue_els_rscn(vport, 0);
5165 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts
5166 * connected to the HBA.
5168 * Value range is any ascii value
5170 static int lpfc_force_rscn;
5171 module_param(lpfc_force_rscn, int, 0644);
5172 MODULE_PARM_DESC(lpfc_force_rscn,
5173 "Force an RSCN to be sent to all remote NPorts");
5174 lpfc_param_show(force_rscn)
5177 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts
5178 * @phba: lpfc_hba pointer.
5179 * @val: unused value.
5182 * zero if val saved.
5185 lpfc_force_rscn_init(struct lpfc_hba *phba, int val)
5189 static DEVICE_ATTR_RW(lpfc_force_rscn);
5192 * lpfc_fcp_imax_store
5194 * @dev: class device that is converted into a Scsi_host.
5195 * @attr: device attribute, not used.
5196 * @buf: string with the number of fast-path FCP interrupts per second.
5197 * @count: unused variable.
5200 * If val is in a valid range [636,651042], then set the adapter's
5201 * maximum number of fast-path FCP interrupts per second.
5204 * length of the buf on success if val is in range the intended mode
5206 * -EINVAL if val out of range or intended mode is not supported.
5209 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
5210 const char *buf, size_t count)
5212 struct Scsi_Host *shost = class_to_shost(dev);
5213 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5214 struct lpfc_hba *phba = vport->phba;
5215 struct lpfc_eq_intr_info *eqi;
5219 /* fcp_imax is only valid for SLI4 */
5220 if (phba->sli_rev != LPFC_SLI_REV4)
5223 /* Sanity check on user data */
5224 if (!isdigit(buf[0]))
5226 if (sscanf(buf, "%i", &val) != 1)
5230 * Value range for the HBA is [5000,5000000]
5231 * The value for each EQ depends on how many EQs are configured.
5234 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX))
5237 phba->cfg_auto_imax = (val) ? 0 : 1;
5238 if (phba->cfg_fcp_imax && !val) {
5239 queue_delayed_work(phba->wq, &phba->eq_delay_work,
5240 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
5242 for_each_present_cpu(i) {
5243 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
5248 phba->cfg_fcp_imax = (uint32_t)val;
5250 if (phba->cfg_fcp_imax)
5251 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
5255 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT)
5256 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT,
5263 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
5266 # Value range is [5,000 to 5,000,000]. Default value is 50,000.
5268 static int lpfc_fcp_imax = LPFC_DEF_IMAX;
5269 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
5270 MODULE_PARM_DESC(lpfc_fcp_imax,
5271 "Set the maximum number of FCP interrupts per second per HBA");
5272 lpfc_param_show(fcp_imax)
5275 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable
5276 * @phba: lpfc_hba pointer.
5277 * @val: link speed value.
5280 * If val is in a valid range [636,651042], then initialize the adapter's
5281 * maximum number of fast-path FCP interrupts per second.
5284 * zero if val saved.
5285 * -EINVAL val out of range
5288 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
5290 if (phba->sli_rev != LPFC_SLI_REV4) {
5291 phba->cfg_fcp_imax = 0;
5295 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) ||
5297 phba->cfg_fcp_imax = val;
5301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5302 "3016 lpfc_fcp_imax: %d out of range, using default\n",
5304 phba->cfg_fcp_imax = LPFC_DEF_IMAX;
5309 static DEVICE_ATTR_RW(lpfc_fcp_imax);
5312 * lpfc_cq_max_proc_limit_store
5314 * @dev: class device that is converted into a Scsi_host.
5315 * @attr: device attribute, not used.
5316 * @buf: string with the cq max processing limit of cqes
5317 * @count: unused variable.
5320 * If val is in a valid range, then set value on each cq
5323 * The length of the buf: if successful
5324 * -ERANGE: if val is not in the valid range
5325 * -EINVAL: if bad value format or intended mode is not supported.
5328 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr,
5329 const char *buf, size_t count)
5331 struct Scsi_Host *shost = class_to_shost(dev);
5332 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5333 struct lpfc_hba *phba = vport->phba;
5334 struct lpfc_queue *eq, *cq;
5338 /* cq_max_proc_limit is only valid for SLI4 */
5339 if (phba->sli_rev != LPFC_SLI_REV4)
5342 /* Sanity check on user data */
5343 if (!isdigit(buf[0]))
5345 if (kstrtoul(buf, 0, &val))
5348 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT)
5351 phba->cfg_cq_max_proc_limit = (uint32_t)val;
5353 /* set the values on the cq's */
5354 for (i = 0; i < phba->cfg_irq_chann; i++) {
5355 /* Get the EQ corresponding to the IRQ vector */
5356 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
5360 list_for_each_entry(cq, &eq->child_list, list)
5361 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
5369 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an
5370 * itteration of CQ processing.
5372 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT;
5373 module_param(lpfc_cq_max_proc_limit, int, 0644);
5374 MODULE_PARM_DESC(lpfc_cq_max_proc_limit,
5375 "Set the maximum number CQEs processed in an iteration of "
5377 lpfc_param_show(cq_max_proc_limit)
5380 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a
5381 * single handler call which should request a polled completion rather
5382 * than re-enabling interrupts.
5384 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL,
5385 LPFC_CQ_MIN_THRESHOLD_TO_POLL,
5386 LPFC_CQ_MAX_THRESHOLD_TO_POLL,
5387 "CQE Processing Threshold to enable Polling");
5390 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit
5391 * @phba: lpfc_hba pointer.
5395 * If val is in a valid range, then initialize the adapter's maximum
5399 * Always returns 0 for success, even if value not always set to
5400 * requested value. If value out of range or not supported, will fall
5404 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val)
5406 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT;
5408 if (phba->sli_rev != LPFC_SLI_REV4)
5411 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) {
5412 phba->cfg_cq_max_proc_limit = val;
5416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5417 "0371 lpfc_cq_max_proc_limit: %d out of range, using "
5419 phba->cfg_cq_max_proc_limit);
5424 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit);
5427 * lpfc_fcp_cpu_map_show - Display current driver CPU affinity
5428 * @dev: class converted to a Scsi_host structure.
5429 * @attr: device attribute, not used.
5430 * @buf: on return contains text describing the state of the link.
5432 * Returns: size of formatted string.
5435 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr,
5438 struct Scsi_Host *shost = class_to_shost(dev);
5439 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
5440 struct lpfc_hba *phba = vport->phba;
5441 struct lpfc_vector_map_info *cpup;
5444 if ((phba->sli_rev != LPFC_SLI_REV4) ||
5445 (phba->intr_type != MSIX))
5448 switch (phba->cfg_fcp_cpu_map) {
5450 len += scnprintf(buf + len, PAGE_SIZE-len,
5451 "fcp_cpu_map: No mapping (%d)\n",
5452 phba->cfg_fcp_cpu_map);
5455 len += scnprintf(buf + len, PAGE_SIZE-len,
5456 "fcp_cpu_map: HBA centric mapping (%d): "
5457 "%d of %d CPUs online from %d possible CPUs\n",
5458 phba->cfg_fcp_cpu_map, num_online_cpus(),
5460 phba->sli4_hba.num_possible_cpu);
5464 while (phba->sli4_hba.curr_disp_cpu <
5465 phba->sli4_hba.num_possible_cpu) {
5466 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
5468 if (!cpu_present(phba->sli4_hba.curr_disp_cpu))
5469 len += scnprintf(buf + len, PAGE_SIZE - len,
5470 "CPU %02d not present\n",
5471 phba->sli4_hba.curr_disp_cpu);
5472 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
5473 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY)
5475 buf + len, PAGE_SIZE - len,
5476 "CPU %02d hdwq None "
5477 "physid %d coreid %d ht %d ua %d\n",
5478 phba->sli4_hba.curr_disp_cpu,
5479 cpup->phys_id, cpup->core_id,
5480 (cpup->flag & LPFC_CPU_MAP_HYPER),
5481 (cpup->flag & LPFC_CPU_MAP_UNASSIGN));
5484 buf + len, PAGE_SIZE - len,
5485 "CPU %02d EQ None hdwq %04d "
5486 "physid %d coreid %d ht %d ua %d\n",
5487 phba->sli4_hba.curr_disp_cpu,
5488 cpup->hdwq, cpup->phys_id,
5490 (cpup->flag & LPFC_CPU_MAP_HYPER),
5491 (cpup->flag & LPFC_CPU_MAP_UNASSIGN));
5493 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY)
5495 buf + len, PAGE_SIZE - len,
5496 "CPU %02d hdwq None "
5497 "physid %d coreid %d ht %d ua %d IRQ %d\n",
5498 phba->sli4_hba.curr_disp_cpu,
5501 (cpup->flag & LPFC_CPU_MAP_HYPER),
5502 (cpup->flag & LPFC_CPU_MAP_UNASSIGN),
5503 lpfc_get_irq(cpup->eq));
5506 buf + len, PAGE_SIZE - len,
5507 "CPU %02d EQ %04d hdwq %04d "
5508 "physid %d coreid %d ht %d ua %d IRQ %d\n",
5509 phba->sli4_hba.curr_disp_cpu,
5510 cpup->eq, cpup->hdwq, cpup->phys_id,
5512 (cpup->flag & LPFC_CPU_MAP_HYPER),
5513 (cpup->flag & LPFC_CPU_MAP_UNASSIGN),
5514 lpfc_get_irq(cpup->eq));
5517 phba->sli4_hba.curr_disp_cpu++;
5519 /* display max number of CPUs keeping some margin */
5520 if (phba->sli4_hba.curr_disp_cpu <
5521 phba->sli4_hba.num_possible_cpu &&
5522 (len >= (PAGE_SIZE - 64))) {
5523 len += scnprintf(buf + len,
5524 PAGE_SIZE - len, "more...\n");
5529 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu)
5530 phba->sli4_hba.curr_disp_cpu = 0;
5536 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors
5537 * @dev: class device that is converted into a Scsi_host.
5538 * @attr: device attribute, not used.
5539 * @buf: one or more lpfc_polling_flags values.
5543 * -EINVAL - Not implemented yet.
5546 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr,
5547 const char *buf, size_t count)
5553 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors
5556 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1).
5557 # 0 - Do not affinitze IRQ vectors
5558 # 1 - Affintize HBA vectors with respect to each HBA
5559 # (start with CPU0 for each HBA)
5560 # This also defines how Hardware Queues are mapped to specific CPUs.
5562 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP;
5563 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR);
5564 MODULE_PARM_DESC(lpfc_fcp_cpu_map,
5565 "Defines how to map CPUs to IRQ vectors per HBA");
5568 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable
5569 * @phba: lpfc_hba pointer.
5570 * @val: link speed value.
5573 * If val is in a valid range [0-2], then affinitze the adapter's
5577 * zero if val saved.
5578 * -EINVAL val out of range
5581 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val)
5583 if (phba->sli_rev != LPFC_SLI_REV4) {
5584 phba->cfg_fcp_cpu_map = 0;
5588 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) {
5589 phba->cfg_fcp_cpu_map = val;
5593 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5594 "3326 lpfc_fcp_cpu_map: %d out of range, using "
5596 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP;
5601 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map);
5604 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
5605 # Value range is [2,3]. Default value is 3.
5607 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
5608 "Select Fibre Channel class of service for FCP sequences");
5611 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
5612 # is [0,1]. Default value is 1.
5614 LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1,
5615 "Use ADISC on rediscovery to authenticate FCP devices");
5618 # lpfc_first_burst_size: First burst size to use on the NPorts
5619 # that support first burst.
5620 # Value range is [0,65536]. Default value is 0.
5622 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536,
5623 "First burst size for Targets that support first burst");
5626 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size.
5627 * When the driver is configured as an NVME target, this value is
5628 * communicated to the NVME initiator in the PRLI response. It is
5629 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support
5630 * parameters are set and the target is sending the PRLI RSP.
5631 * Parameter supported on physical port only - no NPIV support.
5632 * Value range is [0,65536]. Default value is 0.
5634 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536,
5635 "NVME Target mode first burst size in 512B increments.");
5638 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions.
5639 * For the Initiator (I), enabling this parameter means that an NVMET
5640 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be
5641 * processed by the initiator for subsequent NVME FCP IO.
5642 * Currently, this feature is not supported on the NVME target
5643 * Value range is [0,1]. Default value is 0 (disabled).
5645 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1,
5646 "Enable First Burst feature for NVME Initiator.");
5649 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
5650 # depth. Default value is 0. When the value of this parameter is zero the
5651 # SCSI command completion time is not used for controlling I/O queue depth. When
5652 # the parameter is set to a non-zero value, the I/O queue depth is controlled
5653 # to limit the I/O completion time to the parameter value.
5654 # The value is set in milliseconds.
5656 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000,
5657 "Use command completion time to control queue depth");
5659 lpfc_vport_param_show(max_scsicmpl_time);
5661 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
5663 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5664 struct lpfc_nodelist *ndlp, *next_ndlp;
5666 if (val == vport->cfg_max_scsicmpl_time)
5668 if ((val < 0) || (val > 60000))
5670 vport->cfg_max_scsicmpl_time = val;
5672 spin_lock_irq(shost->host_lock);
5673 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
5674 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
5676 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
5678 spin_unlock_irq(shost->host_lock);
5681 lpfc_vport_param_store(max_scsicmpl_time);
5682 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time);
5685 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
5686 # range is [0,1]. Default value is 0.
5688 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
5691 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature
5692 # range is [0,1]. Default value is 1.
5694 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing");
5697 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds
5698 * range is [0,1]. Default value is 0.
5699 * For [0], FCP commands are issued to Work Queues based on upper layer
5700 * hardware queue index.
5701 * For [1], FCP commands are issued to a Work Queue associated with the
5704 * LPFC_FCP_SCHED_BY_HDWQ == 0
5705 * LPFC_FCP_SCHED_BY_CPU == 1
5707 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu
5708 * affinity for FCP/NVME I/Os through Work Queues associated with the current
5709 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os
5710 * through WQs will be used.
5712 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU,
5713 LPFC_FCP_SCHED_BY_HDWQ,
5714 LPFC_FCP_SCHED_BY_CPU,
5715 "Determine scheduling algorithm for "
5716 "issuing commands [0] - Hardware Queue, [1] - Current CPU");
5719 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN
5720 * range is [0,1]. Default value is 0.
5721 * For [0], GID_FT is used for NameServer queries after RSCN (default)
5722 * For [1], GID_PT is used for NameServer queries after RSCN
5725 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT,
5726 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT,
5727 "Determine algorithm NameServer queries after RSCN "
5728 "[0] - GID_FT, [1] - GID_PT");
5731 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior
5732 # range is [0,1]. Default value is 0.
5733 # For [0], bus reset issues target reset to ALL devices
5734 # For [1], bus reset issues target reset to non-FCP2 devices
5736 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for "
5737 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset");
5741 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
5742 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
5743 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
5744 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
5745 # cr_delay is set to 0.
5747 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
5748 "interrupt response is generated");
5750 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
5751 "interrupt response is generated");
5754 # lpfc_multi_ring_support: Determines how many rings to spread available
5755 # cmd/rsp IOCB entries across.
5756 # Value range is [1,2]. Default value is 1.
5758 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
5759 "SLI rings to spread IOCB entries across");
5762 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
5763 # identifies what rctl value to configure the additional ring for.
5764 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
5766 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
5767 255, "Identifies RCTL for additional ring configuration");
5770 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
5771 # identifies what type value to configure the additional ring for.
5772 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
5774 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
5775 255, "Identifies TYPE for additional ring configuration");
5778 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN
5779 # 0 = SmartSAN functionality disabled (default)
5780 # 1 = SmartSAN functionality enabled
5781 # This parameter will override the value of lpfc_fdmi_on module parameter.
5782 # Value range is [0,1]. Default value is 0.
5784 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality");
5787 # lpfc_fdmi_on: Controls FDMI support.
5789 # 1 Traditional FDMI support (default)
5790 # Traditional FDMI support means the driver will assume FDMI-2 support;
5791 # however, if that fails, it will fallback to FDMI-1.
5792 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on.
5793 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of
5795 # Value range [0,1]. Default value is 1.
5797 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support");
5800 # Specifies the maximum number of ELS cmds we can have outstanding (for
5801 # discovery). Value range is [1,64]. Default value = 32.
5803 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
5804 "during discovery");
5807 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that
5808 # will be scanned by the SCSI midlayer when sequential scanning is
5809 # used; and is also the highest LUN ID allowed when the SCSI midlayer
5810 # parses REPORT_LUN responses. The lpfc driver has no LUN count or
5811 # LUN ID limit, but the SCSI midlayer requires this field for the uses
5812 # above. The lpfc driver limits the default value to 255 for two reasons.
5813 # As it bounds the sequential scan loop, scanning for thousands of luns
5814 # on a target can take minutes of wall clock time. Additionally,
5815 # there are FC targets, such as JBODs, that only recognize 8-bits of
5816 # LUN ID. When they receive a value greater than 8 bits, they chop off
5817 # the high order bits. In other words, they see LUN IDs 0, 256, 512,
5818 # and so on all as LUN ID 0. This causes the linux kernel, which sees
5819 # valid responses at each of the LUN IDs, to believe there are multiple
5820 # devices present, when in fact, there is only 1.
5821 # A customer that is aware of their target behaviors, and the results as
5822 # indicated above, is welcome to increase the lpfc_max_luns value.
5823 # As mentioned, this value is not used by the lpfc driver, only the
5825 # Value range is [0,65535]. Default value is 255.
5826 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
5828 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID");
5831 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
5832 # Value range is [1,255], default value is 10.
5834 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
5835 "Milliseconds driver will wait between polling FCP ring");
5838 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands
5839 # to complete in seconds. Value range is [5,180], default value is 60.
5841 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180,
5842 "Maximum time to wait for task management commands to complete");
5844 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
5845 # support this feature
5848 # 2 = MSI-X enabled (default)
5849 # Value range is [0,2]. Default value is 2.
5851 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
5852 "MSI-X (2), if possible");
5855 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs
5857 * 0 = NVME OAS disabled
5858 * 1 = NVME OAS enabled
5860 * Value range is [0,1]. Default value is 0.
5862 LPFC_ATTR_RW(nvme_oas, 0, 0, 1,
5863 "Use OAS bit on NVME IOs");
5866 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs
5868 * 0 = Put NVME Command in SGL
5869 * 1 = Embed NVME Command in WQE (unless G7)
5870 * 2 = Embed NVME Command in WQE (force)
5872 * Value range is [0,2]. Default value is 1.
5874 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2,
5875 "Embed NVME Command in WQE");
5878 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues
5879 * the driver will advertise it supports to the SCSI layer.
5881 * 0 = Set nr_hw_queues by the number of CPUs or HW queues.
5882 * 1,256 = Manually specify nr_hw_queue value to be advertised,
5884 * Value range is [0,256]. Default value is 8.
5886 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF,
5887 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX,
5888 "Set the number of SCSI Queues advertised");
5891 * lpfc_hdw_queue: Set the number of Hardware Queues the driver
5892 * will advertise it supports to the NVME and SCSI layers. This also
5893 * will map to the number of CQ/WQ pairs the driver will create.
5895 * The NVME Layer will try to create this many, plus 1 administrative
5896 * hardware queue. The administrative queue will always map to WQ 0
5897 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ.
5899 * 0 = Configure the number of hdw queues to the number of active CPUs.
5900 * 1,256 = Manually specify how many hdw queues to use.
5902 * Value range is [0,256]. Default value is 0.
5904 LPFC_ATTR_R(hdw_queue,
5906 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX,
5907 "Set the number of I/O Hardware Queues");
5909 #if IS_ENABLED(CONFIG_X86)
5911 * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on
5913 * @phba: Pointer to HBA context object.
5916 lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba)
5918 unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE;
5919 const struct cpumask *sibling_mask;
5920 struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask;
5922 cpumask_clear(aff_mask);
5924 if (phba->irq_chann_mode == NUMA_MODE) {
5925 /* Check if we're a NUMA architecture */
5926 numa_node = dev_to_node(&phba->pcidev->dev);
5927 if (numa_node == NUMA_NO_NODE) {
5928 phba->irq_chann_mode = NORMAL_MODE;
5933 for_each_possible_cpu(cpu) {
5934 switch (phba->irq_chann_mode) {
5936 if (cpu_to_node(cpu) == numa_node)
5937 cpumask_set_cpu(cpu, aff_mask);
5940 sibling_mask = topology_sibling_cpumask(cpu);
5941 first_cpu = cpumask_first(sibling_mask);
5942 if (first_cpu < nr_cpu_ids)
5943 cpumask_set_cpu(first_cpu, aff_mask);
5953 lpfc_assign_default_irq_chann(struct lpfc_hba *phba)
5955 #if IS_ENABLED(CONFIG_X86)
5956 switch (boot_cpu_data.x86_vendor) {
5957 case X86_VENDOR_AMD:
5958 /* If AMD architecture, then default is NUMA_MODE */
5959 phba->irq_chann_mode = NUMA_MODE;
5961 case X86_VENDOR_INTEL:
5962 /* If Intel architecture, then default is no hyperthread mode */
5963 phba->irq_chann_mode = NHT_MODE;
5966 phba->irq_chann_mode = NORMAL_MODE;
5969 lpfc_cpumask_irq_mode_init(phba);
5971 phba->irq_chann_mode = NORMAL_MODE;
5976 * lpfc_irq_chann: Set the number of IRQ vectors that are available
5977 * for Hardware Queues to utilize. This also will map to the number
5978 * of EQ / MSI-X vectors the driver will create. This should never be
5979 * more than the number of Hardware Queues
5981 * 0 = Configure number of IRQ Channels to:
5982 * if AMD architecture, number of CPUs on HBA's NUMA node
5983 * if Intel architecture, number of physical CPUs.
5984 * otherwise, number of active CPUs.
5985 * [1,256] = Manually specify how many IRQ Channels to use.
5987 * Value range is [0,256]. Default value is [0].
5989 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF;
5990 module_param(lpfc_irq_chann, uint, 0444);
5991 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate");
5993 /* lpfc_irq_chann_init - Set the hba irq_chann initial value
5994 * @phba: lpfc_hba pointer.
5995 * @val: contains the initial value
5998 * Validates the initial value is within range and assigns it to the
5999 * adapter. If not in range, an error message is posted and the
6000 * default value is assigned.
6003 * zero if value is in range and is set
6004 * -EINVAL if value was out of range
6007 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val)
6009 const struct cpumask *aff_mask;
6011 if (phba->cfg_use_msi != 2) {
6012 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6013 "8532 use_msi = %u ignoring cfg_irq_numa\n",
6015 phba->irq_chann_mode = NORMAL_MODE;
6016 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF;
6020 /* Check if default setting was passed */
6021 if (val == LPFC_IRQ_CHANN_DEF &&
6022 phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF &&
6023 phba->sli_rev == LPFC_SLI_REV4)
6024 lpfc_assign_default_irq_chann(phba);
6026 if (phba->irq_chann_mode != NORMAL_MODE) {
6027 aff_mask = &phba->sli4_hba.irq_aff_mask;
6029 if (cpumask_empty(aff_mask)) {
6030 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6031 "8533 Could not identify CPUS for "
6032 "mode %d, ignoring\n",
6033 phba->irq_chann_mode);
6034 phba->irq_chann_mode = NORMAL_MODE;
6035 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF;
6037 phba->cfg_irq_chann = cpumask_weight(aff_mask);
6039 /* If no hyperthread mode, then set hdwq count to
6040 * aff_mask weight as well
6042 if (phba->irq_chann_mode == NHT_MODE)
6043 phba->cfg_hdw_queue = phba->cfg_irq_chann;
6045 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6046 "8543 lpfc_irq_chann set to %u "
6047 "(mode: %d)\n", phba->cfg_irq_chann,
6048 phba->irq_chann_mode);
6051 if (val > LPFC_IRQ_CHANN_MAX) {
6052 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6053 "8545 lpfc_irq_chann attribute cannot "
6054 "be set to %u, allowed range is "
6058 LPFC_IRQ_CHANN_MAX);
6059 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF;
6062 if (phba->sli_rev == LPFC_SLI_REV4) {
6063 phba->cfg_irq_chann = val;
6065 phba->cfg_irq_chann = 2;
6066 phba->cfg_hdw_queue = 1;
6074 * lpfc_irq_chann_show - Display value of irq_chann
6075 * @dev: class converted to a Scsi_host structure.
6076 * @attr: device attribute, not used.
6077 * @buf: on return contains a string with the list sizes
6079 * Returns: size of formatted string.
6082 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr,
6085 struct Scsi_Host *shost = class_to_shost(dev);
6086 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
6087 struct lpfc_hba *phba = vport->phba;
6089 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann);
6092 static DEVICE_ATTR_RO(lpfc_irq_chann);
6095 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
6096 # 0 = HBA resets disabled
6097 # 1 = HBA resets enabled (default)
6098 # 2 = HBA reset via PCI bus reset enabled
6099 # Value range is [0,2]. Default value is 1.
6101 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver.");
6104 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
6105 # 0 = HBA Heartbeat disabled
6106 # 1 = HBA Heartbeat enabled (default)
6107 # Value range is [0,1]. Default value is 1.
6109 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
6112 # lpfc_EnableXLane: Enable Express Lane Feature
6113 # 0x0 Express Lane Feature disabled
6114 # 0x1 Express Lane Feature enabled
6115 # Value range is [0,1]. Default value is 0.
6117 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
6120 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature
6121 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits)
6122 # Value range is [0x0,0x7f]. Default value is 0
6124 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
6127 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
6128 # 0 = BlockGuard disabled (default)
6129 # 1 = BlockGuard enabled
6130 # Value range is [0,1]. Default value is 0.
6132 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
6136 # - Bit mask of host protection capabilities used to register with the
6138 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
6139 # - Allows you to ultimately specify which profiles to use
6140 # - Default will result in registering capabilities for all profiles.
6141 # - SHOST_DIF_TYPE1_PROTECTION 1
6142 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection
6143 # - SHOST_DIX_TYPE0_PROTECTION 8
6144 # HBA supports DIX Type 0: Host to HBA protection only
6145 # - SHOST_DIX_TYPE1_PROTECTION 16
6146 # HBA supports DIX Type 1: Host to HBA Type 1 protection
6149 LPFC_ATTR(prot_mask,
6150 (SHOST_DIF_TYPE1_PROTECTION |
6151 SHOST_DIX_TYPE0_PROTECTION |
6152 SHOST_DIX_TYPE1_PROTECTION),
6154 (SHOST_DIF_TYPE1_PROTECTION |
6155 SHOST_DIX_TYPE0_PROTECTION |
6156 SHOST_DIX_TYPE1_PROTECTION),
6157 "T10-DIF host protection capabilities mask");
6161 # - Bit mask of protection guard types to register with the SCSI mid-layer
6162 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum
6163 # - Allows you to ultimately specify which profiles to use
6164 # - Default will result in registering capabilities for all guard types
6167 LPFC_ATTR(prot_guard,
6168 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP,
6169 "T10-DIF host protection guard type");
6172 * Delay initial NPort discovery when Clean Address bit is cleared in
6173 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
6174 * This parameter can have value 0 or 1.
6175 * When this parameter is set to 0, no delay is added to the initial
6177 * When this parameter is set to non-zero value, initial Nport discovery is
6178 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
6179 * accept and FCID/Fabric name/Fabric portname is changed.
6180 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
6181 * when Clean Address bit is cleared in FLOGI/FDISC
6182 * accept and FCID/Fabric name/Fabric portname is changed.
6183 * Default value is 0.
6185 LPFC_ATTR(delay_discovery, 0, 0, 1,
6186 "Delay NPort discovery when Clean Address bit is cleared.");
6189 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
6190 * This value can be set to values between 64 and 4096. The default value
6191 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi
6192 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE).
6193 * Because of the additional overhead involved in setting up T10-DIF,
6194 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4
6195 * and will be limited to 512 if BlockGuard is enabled under SLI3.
6197 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT;
6198 module_param(lpfc_sg_seg_cnt, uint, 0444);
6199 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count");
6202 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes
6203 * configured for the adapter
6204 * @dev: class converted to a Scsi_host structure.
6205 * @attr: device attribute, not used.
6206 * @buf: on return contains a string with the list sizes
6208 * Returns: size of formatted string.
6211 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr,
6214 struct Scsi_Host *shost = class_to_shost(dev);
6215 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
6216 struct lpfc_hba *phba = vport->phba;
6219 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n",
6220 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt);
6222 len += scnprintf(buf + len, PAGE_SIZE - len,
6223 "Cfg: %d SCSI: %d NVME: %d\n",
6224 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt,
6225 phba->cfg_nvme_seg_cnt);
6229 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt);
6232 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value
6233 * @phba: lpfc_hba pointer.
6234 * @val: contains the initial value
6237 * Validates the initial value is within range and assigns it to the
6238 * adapter. If not in range, an error message is posted and the
6239 * default value is assigned.
6242 * zero if value is in range and is set
6243 * -EINVAL if value was out of range
6246 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val)
6248 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) {
6249 phba->cfg_sg_seg_cnt = val;
6252 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6253 "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, "
6254 "allowed range is [%d, %d]\n",
6255 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT);
6256 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT;
6261 * lpfc_enable_mds_diags: Enable MDS Diagnostics
6262 * 0 = MDS Diagnostics disabled (default)
6263 * 1 = MDS Diagnostics enabled
6264 * Value range is [0,1]. Default value is 0.
6266 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics");
6269 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size
6270 * 0 = Disable firmware logging (default)
6271 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging
6272 * Value range [0..4]. Default value is 0
6274 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging");
6275 lpfc_param_show(ras_fwlog_buffsize);
6278 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val)
6281 enum ras_state state;
6283 if (!lpfc_rangecheck(val, 0, 4))
6286 if (phba->cfg_ras_fwlog_buffsize == val)
6289 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn))
6292 spin_lock_irq(&phba->hbalock);
6293 state = phba->ras_fwlog.state;
6294 spin_unlock_irq(&phba->hbalock);
6296 if (state == REG_INPROGRESS) {
6297 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging "
6298 "registration is in progress\n");
6302 /* For disable logging: stop the logs and free the DMA.
6303 * For ras_fwlog_buffsize size change we still need to free and
6304 * reallocate the DMA in lpfc_sli4_ras_fwlog_init.
6306 phba->cfg_ras_fwlog_buffsize = val;
6307 if (state == ACTIVE) {
6308 lpfc_ras_stop_fwlog(phba);
6309 lpfc_sli4_ras_dma_free(phba);
6312 lpfc_sli4_ras_init(phba);
6313 if (phba->ras_fwlog.ras_enabled)
6314 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
6315 LPFC_RAS_ENABLE_LOGGING);
6319 lpfc_param_store(ras_fwlog_buffsize);
6320 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize);
6323 * lpfc_ras_fwlog_level: Firmware logging verbosity level
6324 * Valid only if firmware logging is enabled
6325 * 0(Least Verbosity) 4 (most verbosity)
6326 * Value range is [0..4]. Default value is 0
6328 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level");
6331 * lpfc_ras_fwlog_func: Firmware logging enabled on function number
6332 * Default function which has RAS support : 0
6333 * Value Range is [0..7].
6334 * FW logging is a global action and enablement is via a specific
6337 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function");
6340 * lpfc_enable_bbcr: Enable BB Credit Recovery
6341 * 0 = BB Credit Recovery disabled
6342 * 1 = BB Credit Recovery enabled (default)
6343 * Value range is [0,1]. Default value is 1.
6345 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery");
6347 /* Signaling module parameters */
6348 int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */
6349 module_param(lpfc_fabric_cgn_frequency, int, 0444);
6350 MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq");
6352 int lpfc_acqe_cgn_frequency = 10; /* 10 sec default */
6353 module_param(lpfc_acqe_cgn_frequency, int, 0444);
6354 MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq");
6356 int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */
6357 module_param(lpfc_use_cgn_signal, int, 0444);
6358 MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available");
6361 * lpfc_enable_dpp: Enable DPP on G7
6362 * 0 = DPP on G7 disabled
6363 * 1 = DPP on G7 enabled (default)
6364 * Value range is [0,1]. Default value is 1.
6366 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push");
6369 * lpfc_enable_mi: Enable FDMI MIB
6371 * 1 = enabled (default)
6372 * Value range is [0,1].
6374 LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI");
6377 * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if
6378 * either vmid_app_header or vmid_priority_tagging is enabled.
6379 * 4 - 255 = vmid support enabled for 4-255 VMs
6380 * Value range is [4,255].
6382 LPFC_ATTR_RW(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID,
6383 "Maximum number of VMs supported");
6386 * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours
6387 * 0 = Timeout is disabled
6388 * Value range is [0,24].
6390 LPFC_ATTR_RW(vmid_inactivity_timeout, 4, 0, 24,
6391 "Inactivity timeout in hours");
6394 * lpfc_vmid_app_header: Enable App Header VMID support
6395 * 0 = Support is disabled (default)
6396 * 1 = Support is enabled
6397 * Value range is [0,1].
6399 LPFC_ATTR_RW(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE,
6400 LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE,
6401 "Enable App Header VMID support");
6404 * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support
6405 * 0 = Support is disabled (default)
6406 * 1 = Allow supported targets only
6407 * 2 = Allow all targets
6408 * Value range is [0,2].
6410 LPFC_ATTR_RW(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE,
6411 LPFC_VMID_PRIO_TAG_DISABLE,
6412 LPFC_VMID_PRIO_TAG_ALL_TARGETS,
6413 "Enable Priority Tagging VMID support");
6415 static struct attribute *lpfc_hba_attrs[] = {
6416 &dev_attr_nvme_info.attr,
6417 &dev_attr_scsi_stat.attr,
6418 &dev_attr_bg_info.attr,
6419 &dev_attr_bg_guard_err.attr,
6420 &dev_attr_bg_apptag_err.attr,
6421 &dev_attr_bg_reftag_err.attr,
6422 &dev_attr_info.attr,
6423 &dev_attr_serialnum.attr,
6424 &dev_attr_modeldesc.attr,
6425 &dev_attr_modelname.attr,
6426 &dev_attr_programtype.attr,
6427 &dev_attr_portnum.attr,
6428 &dev_attr_fwrev.attr,
6430 &dev_attr_option_rom_version.attr,
6431 &dev_attr_link_state.attr,
6432 &dev_attr_num_discovered_ports.attr,
6433 &dev_attr_menlo_mgmt_mode.attr,
6434 &dev_attr_lpfc_drvr_version.attr,
6435 &dev_attr_lpfc_enable_fip.attr,
6436 &dev_attr_lpfc_temp_sensor.attr,
6437 &dev_attr_lpfc_log_verbose.attr,
6438 &dev_attr_lpfc_lun_queue_depth.attr,
6439 &dev_attr_lpfc_tgt_queue_depth.attr,
6440 &dev_attr_lpfc_hba_queue_depth.attr,
6441 &dev_attr_lpfc_peer_port_login.attr,
6442 &dev_attr_lpfc_nodev_tmo.attr,
6443 &dev_attr_lpfc_devloss_tmo.attr,
6444 &dev_attr_lpfc_enable_fc4_type.attr,
6445 &dev_attr_lpfc_fcp_class.attr,
6446 &dev_attr_lpfc_use_adisc.attr,
6447 &dev_attr_lpfc_first_burst_size.attr,
6448 &dev_attr_lpfc_ack0.attr,
6449 &dev_attr_lpfc_xri_rebalancing.attr,
6450 &dev_attr_lpfc_topology.attr,
6451 &dev_attr_lpfc_scan_down.attr,
6452 &dev_attr_lpfc_link_speed.attr,
6453 &dev_attr_lpfc_fcp_io_sched.attr,
6454 &dev_attr_lpfc_ns_query.attr,
6455 &dev_attr_lpfc_fcp2_no_tgt_reset.attr,
6456 &dev_attr_lpfc_cr_delay.attr,
6457 &dev_attr_lpfc_cr_count.attr,
6458 &dev_attr_lpfc_multi_ring_support.attr,
6459 &dev_attr_lpfc_multi_ring_rctl.attr,
6460 &dev_attr_lpfc_multi_ring_type.attr,
6461 &dev_attr_lpfc_fdmi_on.attr,
6462 &dev_attr_lpfc_enable_SmartSAN.attr,
6463 &dev_attr_lpfc_max_luns.attr,
6464 &dev_attr_lpfc_enable_npiv.attr,
6465 &dev_attr_lpfc_fcf_failover_policy.attr,
6466 &dev_attr_lpfc_enable_rrq.attr,
6467 &dev_attr_lpfc_fcp_wait_abts_rsp.attr,
6468 &dev_attr_nport_evt_cnt.attr,
6469 &dev_attr_board_mode.attr,
6470 &dev_attr_max_vpi.attr,
6471 &dev_attr_used_vpi.attr,
6472 &dev_attr_max_rpi.attr,
6473 &dev_attr_used_rpi.attr,
6474 &dev_attr_max_xri.attr,
6475 &dev_attr_used_xri.attr,
6476 &dev_attr_npiv_info.attr,
6477 &dev_attr_issue_reset.attr,
6478 &dev_attr_lpfc_poll.attr,
6479 &dev_attr_lpfc_poll_tmo.attr,
6480 &dev_attr_lpfc_task_mgmt_tmo.attr,
6481 &dev_attr_lpfc_use_msi.attr,
6482 &dev_attr_lpfc_nvme_oas.attr,
6483 &dev_attr_lpfc_nvme_embed_cmd.attr,
6484 &dev_attr_lpfc_fcp_imax.attr,
6485 &dev_attr_lpfc_force_rscn.attr,
6486 &dev_attr_lpfc_cq_poll_threshold.attr,
6487 &dev_attr_lpfc_cq_max_proc_limit.attr,
6488 &dev_attr_lpfc_fcp_cpu_map.attr,
6489 &dev_attr_lpfc_fcp_mq_threshold.attr,
6490 &dev_attr_lpfc_hdw_queue.attr,
6491 &dev_attr_lpfc_irq_chann.attr,
6492 &dev_attr_lpfc_suppress_rsp.attr,
6493 &dev_attr_lpfc_nvmet_mrq.attr,
6494 &dev_attr_lpfc_nvmet_mrq_post.attr,
6495 &dev_attr_lpfc_nvme_enable_fb.attr,
6496 &dev_attr_lpfc_nvmet_fb_size.attr,
6497 &dev_attr_lpfc_enable_bg.attr,
6498 &dev_attr_lpfc_soft_wwnn.attr,
6499 &dev_attr_lpfc_soft_wwpn.attr,
6500 &dev_attr_lpfc_soft_wwn_enable.attr,
6501 &dev_attr_lpfc_enable_hba_reset.attr,
6502 &dev_attr_lpfc_enable_hba_heartbeat.attr,
6503 &dev_attr_lpfc_EnableXLane.attr,
6504 &dev_attr_lpfc_XLanePriority.attr,
6505 &dev_attr_lpfc_xlane_lun.attr,
6506 &dev_attr_lpfc_xlane_tgt.attr,
6507 &dev_attr_lpfc_xlane_vpt.attr,
6508 &dev_attr_lpfc_xlane_lun_state.attr,
6509 &dev_attr_lpfc_xlane_lun_status.attr,
6510 &dev_attr_lpfc_xlane_priority.attr,
6511 &dev_attr_lpfc_sg_seg_cnt.attr,
6512 &dev_attr_lpfc_max_scsicmpl_time.attr,
6513 &dev_attr_lpfc_stat_data_ctrl.attr,
6514 &dev_attr_lpfc_aer_support.attr,
6515 &dev_attr_lpfc_aer_state_cleanup.attr,
6516 &dev_attr_lpfc_sriov_nr_virtfn.attr,
6517 &dev_attr_lpfc_req_fw_upgrade.attr,
6518 &dev_attr_lpfc_suppress_link_up.attr,
6519 &dev_attr_iocb_hw.attr,
6522 &dev_attr_txq_hw.attr,
6523 &dev_attr_txcmplq_hw.attr,
6524 &dev_attr_lpfc_sriov_hw_max_virtfn.attr,
6525 &dev_attr_protocol.attr,
6526 &dev_attr_lpfc_xlane_supported.attr,
6527 &dev_attr_lpfc_enable_mds_diags.attr,
6528 &dev_attr_lpfc_ras_fwlog_buffsize.attr,
6529 &dev_attr_lpfc_ras_fwlog_level.attr,
6530 &dev_attr_lpfc_ras_fwlog_func.attr,
6531 &dev_attr_lpfc_enable_bbcr.attr,
6532 &dev_attr_lpfc_enable_dpp.attr,
6533 &dev_attr_lpfc_enable_mi.attr,
6534 &dev_attr_cmf_info.attr,
6535 &dev_attr_lpfc_max_vmid.attr,
6536 &dev_attr_lpfc_vmid_inactivity_timeout.attr,
6537 &dev_attr_lpfc_vmid_app_header.attr,
6538 &dev_attr_lpfc_vmid_priority_tagging.attr,
6542 static const struct attribute_group lpfc_hba_attr_group = {
6543 .attrs = lpfc_hba_attrs
6546 const struct attribute_group *lpfc_hba_groups[] = {
6547 &lpfc_hba_attr_group,
6551 static struct attribute *lpfc_vport_attrs[] = {
6552 &dev_attr_info.attr,
6553 &dev_attr_link_state.attr,
6554 &dev_attr_num_discovered_ports.attr,
6555 &dev_attr_lpfc_drvr_version.attr,
6556 &dev_attr_lpfc_log_verbose.attr,
6557 &dev_attr_lpfc_lun_queue_depth.attr,
6558 &dev_attr_lpfc_tgt_queue_depth.attr,
6559 &dev_attr_lpfc_nodev_tmo.attr,
6560 &dev_attr_lpfc_devloss_tmo.attr,
6561 &dev_attr_lpfc_hba_queue_depth.attr,
6562 &dev_attr_lpfc_peer_port_login.attr,
6563 &dev_attr_lpfc_restrict_login.attr,
6564 &dev_attr_lpfc_fcp_class.attr,
6565 &dev_attr_lpfc_use_adisc.attr,
6566 &dev_attr_lpfc_first_burst_size.attr,
6567 &dev_attr_lpfc_max_luns.attr,
6568 &dev_attr_nport_evt_cnt.attr,
6569 &dev_attr_npiv_info.attr,
6570 &dev_attr_lpfc_enable_da_id.attr,
6571 &dev_attr_lpfc_max_scsicmpl_time.attr,
6572 &dev_attr_lpfc_stat_data_ctrl.attr,
6573 &dev_attr_lpfc_static_vport.attr,
6574 &dev_attr_cmf_info.attr,
6578 static const struct attribute_group lpfc_vport_attr_group = {
6579 .attrs = lpfc_vport_attrs
6582 const struct attribute_group *lpfc_vport_groups[] = {
6583 &lpfc_vport_attr_group,
6588 * sysfs_ctlreg_write - Write method for writing to ctlreg
6589 * @filp: open sysfs file
6590 * @kobj: kernel kobject that contains the kernel class device.
6591 * @bin_attr: kernel attributes passed to us.
6592 * @buf: contains the data to be written to the adapter IOREG space.
6593 * @off: offset into buffer to beginning of data.
6594 * @count: bytes to transfer.
6597 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
6598 * Uses the adapter io control registers to send buf contents to the adapter.
6601 * -ERANGE off and count combo out of range
6602 * -EINVAL off, count or buff address invalid
6603 * -EPERM adapter is offline
6604 * value of count, buf contents written
6607 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
6608 struct bin_attribute *bin_attr,
6609 char *buf, loff_t off, size_t count)
6612 struct device *dev = container_of(kobj, struct device, kobj);
6613 struct Scsi_Host *shost = class_to_shost(dev);
6614 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6615 struct lpfc_hba *phba = vport->phba;
6617 if (phba->sli_rev >= LPFC_SLI_REV4)
6620 if ((off + count) > FF_REG_AREA_SIZE)
6623 if (count <= LPFC_REG_WRITE_KEY_SIZE)
6626 if (off % 4 || count % 4 || (unsigned long)buf % 4)
6629 /* This is to protect HBA registers from accidental writes. */
6630 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE))
6633 if (!(vport->fc_flag & FC_OFFLINE_MODE))
6636 spin_lock_irq(&phba->hbalock);
6637 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE;
6638 buf_off += sizeof(uint32_t))
6639 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)),
6640 phba->ctrl_regs_memmap_p + off + buf_off);
6642 spin_unlock_irq(&phba->hbalock);
6648 * sysfs_ctlreg_read - Read method for reading from ctlreg
6649 * @filp: open sysfs file
6650 * @kobj: kernel kobject that contains the kernel class device.
6651 * @bin_attr: kernel attributes passed to us.
6652 * @buf: if successful contains the data from the adapter IOREG space.
6653 * @off: offset into buffer to beginning of data.
6654 * @count: bytes to transfer.
6657 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
6658 * Uses the adapter io control registers to read data into buf.
6661 * -ERANGE off and count combo out of range
6662 * -EINVAL off, count or buff address invalid
6663 * value of count, buf contents read
6666 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
6667 struct bin_attribute *bin_attr,
6668 char *buf, loff_t off, size_t count)
6672 struct device *dev = container_of(kobj, struct device, kobj);
6673 struct Scsi_Host *shost = class_to_shost(dev);
6674 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6675 struct lpfc_hba *phba = vport->phba;
6677 if (phba->sli_rev >= LPFC_SLI_REV4)
6680 if (off > FF_REG_AREA_SIZE)
6683 if ((off + count) > FF_REG_AREA_SIZE)
6684 count = FF_REG_AREA_SIZE - off;
6686 if (count == 0) return 0;
6688 if (off % 4 || count % 4 || (unsigned long)buf % 4)
6691 spin_lock_irq(&phba->hbalock);
6693 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
6694 tmp_ptr = (uint32_t *)(buf + buf_off);
6695 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
6698 spin_unlock_irq(&phba->hbalock);
6703 static struct bin_attribute sysfs_ctlreg_attr = {
6706 .mode = S_IRUSR | S_IWUSR,
6709 .read = sysfs_ctlreg_read,
6710 .write = sysfs_ctlreg_write,
6714 * sysfs_mbox_write - Write method for writing information via mbox
6715 * @filp: open sysfs file
6716 * @kobj: kernel kobject that contains the kernel class device.
6717 * @bin_attr: kernel attributes passed to us.
6718 * @buf: contains the data to be written to sysfs mbox.
6719 * @off: offset into buffer to beginning of data.
6720 * @count: bytes to transfer.
6723 * Deprecated function. All mailbox access from user space is performed via the
6727 * -EPERM operation not permitted
6730 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
6731 struct bin_attribute *bin_attr,
6732 char *buf, loff_t off, size_t count)
6738 * sysfs_mbox_read - Read method for reading information via mbox
6739 * @filp: open sysfs file
6740 * @kobj: kernel kobject that contains the kernel class device.
6741 * @bin_attr: kernel attributes passed to us.
6742 * @buf: contains the data to be read from sysfs mbox.
6743 * @off: offset into buffer to beginning of data.
6744 * @count: bytes to transfer.
6747 * Deprecated function. All mailbox access from user space is performed via the
6751 * -EPERM operation not permitted
6754 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
6755 struct bin_attribute *bin_attr,
6756 char *buf, loff_t off, size_t count)
6761 static struct bin_attribute sysfs_mbox_attr = {
6764 .mode = S_IRUSR | S_IWUSR,
6766 .size = MAILBOX_SYSFS_MAX,
6767 .read = sysfs_mbox_read,
6768 .write = sysfs_mbox_write,
6772 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
6773 * @vport: address of lpfc vport structure.
6777 * error return code from sysfs_create_bin_file()
6780 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
6782 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6785 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
6786 &sysfs_drvr_stat_data_attr);
6788 /* Virtual ports do not need ctrl_reg and mbox */
6789 if (error || vport->port_type == LPFC_NPIV_PORT)
6792 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
6793 &sysfs_ctlreg_attr);
6795 goto out_remove_stat_attr;
6797 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
6800 goto out_remove_ctlreg_attr;
6803 out_remove_ctlreg_attr:
6804 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
6805 out_remove_stat_attr:
6806 sysfs_remove_bin_file(&shost->shost_dev.kobj,
6807 &sysfs_drvr_stat_data_attr);
6813 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
6814 * @vport: address of lpfc vport structure.
6817 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
6819 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
6820 sysfs_remove_bin_file(&shost->shost_dev.kobj,
6821 &sysfs_drvr_stat_data_attr);
6822 /* Virtual ports do not need ctrl_reg and mbox */
6823 if (vport->port_type == LPFC_NPIV_PORT)
6825 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
6826 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
6830 * Dynamic FC Host Attributes Support
6834 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host
6835 * @shost: kernel scsi host pointer.
6838 lpfc_get_host_symbolic_name(struct Scsi_Host *shost)
6840 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
6842 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
6843 sizeof fc_host_symbolic_name(shost));
6847 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
6848 * @shost: kernel scsi host pointer.
6851 lpfc_get_host_port_id(struct Scsi_Host *shost)
6853 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6855 /* note: fc_myDID already in cpu endianness */
6856 fc_host_port_id(shost) = vport->fc_myDID;
6860 * lpfc_get_host_port_type - Set the value of the scsi host port type
6861 * @shost: kernel scsi host pointer.
6864 lpfc_get_host_port_type(struct Scsi_Host *shost)
6866 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6867 struct lpfc_hba *phba = vport->phba;
6869 spin_lock_irq(shost->host_lock);
6871 if (vport->port_type == LPFC_NPIV_PORT) {
6872 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
6873 } else if (lpfc_is_link_up(phba)) {
6874 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
6875 if (vport->fc_flag & FC_PUBLIC_LOOP)
6876 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
6878 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
6880 if (vport->fc_flag & FC_FABRIC)
6881 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
6883 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
6886 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
6888 spin_unlock_irq(shost->host_lock);
6892 * lpfc_get_host_port_state - Set the value of the scsi host port state
6893 * @shost: kernel scsi host pointer.
6896 lpfc_get_host_port_state(struct Scsi_Host *shost)
6898 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6899 struct lpfc_hba *phba = vport->phba;
6901 spin_lock_irq(shost->host_lock);
6903 if (vport->fc_flag & FC_OFFLINE_MODE)
6904 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
6906 switch (phba->link_state) {
6907 case LPFC_LINK_UNKNOWN:
6908 case LPFC_LINK_DOWN:
6909 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
6913 case LPFC_HBA_READY:
6914 /* Links up, reports port state accordingly */
6915 if (vport->port_state < LPFC_VPORT_READY)
6916 fc_host_port_state(shost) =
6917 FC_PORTSTATE_BYPASSED;
6919 fc_host_port_state(shost) =
6920 FC_PORTSTATE_ONLINE;
6922 case LPFC_HBA_ERROR:
6923 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
6926 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
6931 spin_unlock_irq(shost->host_lock);
6935 * lpfc_get_host_speed - Set the value of the scsi host speed
6936 * @shost: kernel scsi host pointer.
6939 lpfc_get_host_speed(struct Scsi_Host *shost)
6941 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
6942 struct lpfc_hba *phba = vport->phba;
6944 spin_lock_irq(shost->host_lock);
6946 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) {
6947 switch(phba->fc_linkspeed) {
6948 case LPFC_LINK_SPEED_1GHZ:
6949 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
6951 case LPFC_LINK_SPEED_2GHZ:
6952 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
6954 case LPFC_LINK_SPEED_4GHZ:
6955 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
6957 case LPFC_LINK_SPEED_8GHZ:
6958 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
6960 case LPFC_LINK_SPEED_10GHZ:
6961 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
6963 case LPFC_LINK_SPEED_16GHZ:
6964 fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
6966 case LPFC_LINK_SPEED_32GHZ:
6967 fc_host_speed(shost) = FC_PORTSPEED_32GBIT;
6969 case LPFC_LINK_SPEED_64GHZ:
6970 fc_host_speed(shost) = FC_PORTSPEED_64GBIT;
6972 case LPFC_LINK_SPEED_128GHZ:
6973 fc_host_speed(shost) = FC_PORTSPEED_128GBIT;
6975 case LPFC_LINK_SPEED_256GHZ:
6976 fc_host_speed(shost) = FC_PORTSPEED_256GBIT;
6979 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
6982 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) {
6983 switch (phba->fc_linkspeed) {
6984 case LPFC_ASYNC_LINK_SPEED_1GBPS:
6985 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
6987 case LPFC_ASYNC_LINK_SPEED_10GBPS:
6988 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
6990 case LPFC_ASYNC_LINK_SPEED_20GBPS:
6991 fc_host_speed(shost) = FC_PORTSPEED_20GBIT;
6993 case LPFC_ASYNC_LINK_SPEED_25GBPS:
6994 fc_host_speed(shost) = FC_PORTSPEED_25GBIT;
6996 case LPFC_ASYNC_LINK_SPEED_40GBPS:
6997 fc_host_speed(shost) = FC_PORTSPEED_40GBIT;
6999 case LPFC_ASYNC_LINK_SPEED_100GBPS:
7000 fc_host_speed(shost) = FC_PORTSPEED_100GBIT;
7003 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
7007 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
7009 spin_unlock_irq(shost->host_lock);
7013 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
7014 * @shost: kernel scsi host pointer.
7017 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
7019 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7020 struct lpfc_hba *phba = vport->phba;
7023 spin_lock_irq(shost->host_lock);
7025 if ((vport->port_state > LPFC_FLOGI) &&
7026 ((vport->fc_flag & FC_FABRIC) ||
7027 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
7028 (vport->fc_flag & FC_PUBLIC_LOOP))))
7029 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
7031 /* fabric is local port if there is no F/FL_Port */
7034 spin_unlock_irq(shost->host_lock);
7036 fc_host_fabric_name(shost) = node_name;
7040 * lpfc_get_stats - Return statistical information about the adapter
7041 * @shost: kernel scsi host pointer.
7044 * NULL on error for link down, no mbox pool, sli2 active,
7045 * management not allowed, memory allocation error, or mbox error.
7049 * address of the adapter host statistics
7051 static struct fc_host_statistics *
7052 lpfc_get_stats(struct Scsi_Host *shost)
7054 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7055 struct lpfc_hba *phba = vport->phba;
7056 struct lpfc_sli *psli = &phba->sli;
7057 struct fc_host_statistics *hs = &phba->link_stats;
7058 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
7059 LPFC_MBOXQ_t *pmboxq;
7064 * prevent udev from issuing mailbox commands until the port is
7067 if (phba->link_state < LPFC_LINK_DOWN ||
7068 !phba->mbox_mem_pool ||
7069 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
7072 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
7075 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7078 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
7080 pmb = &pmboxq->u.mb;
7081 pmb->mbxCommand = MBX_READ_STATUS;
7082 pmb->mbxOwner = OWN_HOST;
7083 pmboxq->ctx_buf = NULL;
7084 pmboxq->vport = vport;
7086 if (vport->fc_flag & FC_OFFLINE_MODE) {
7087 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
7088 if (rc != MBX_SUCCESS) {
7089 mempool_free(pmboxq, phba->mbox_mem_pool);
7093 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
7094 if (rc != MBX_SUCCESS) {
7095 if (rc != MBX_TIMEOUT)
7096 mempool_free(pmboxq, phba->mbox_mem_pool);
7101 memset(hs, 0, sizeof (struct fc_host_statistics));
7103 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
7105 * The MBX_READ_STATUS returns tx_k_bytes which has to
7106 * converted to words
7108 hs->tx_words = (uint64_t)
7109 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt
7111 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
7112 hs->rx_words = (uint64_t)
7113 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt
7116 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
7117 pmb->mbxCommand = MBX_READ_LNK_STAT;
7118 pmb->mbxOwner = OWN_HOST;
7119 pmboxq->ctx_buf = NULL;
7120 pmboxq->vport = vport;
7122 if (vport->fc_flag & FC_OFFLINE_MODE) {
7123 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
7124 if (rc != MBX_SUCCESS) {
7125 mempool_free(pmboxq, phba->mbox_mem_pool);
7129 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
7130 if (rc != MBX_SUCCESS) {
7131 if (rc != MBX_TIMEOUT)
7132 mempool_free(pmboxq, phba->mbox_mem_pool);
7137 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
7138 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
7139 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
7140 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
7141 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
7142 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
7143 hs->error_frames = pmb->un.varRdLnk.crcCnt;
7145 hs->cn_sig_warn = atomic64_read(&phba->cgn_acqe_stat.warn);
7146 hs->cn_sig_alarm = atomic64_read(&phba->cgn_acqe_stat.alarm);
7148 hs->link_failure_count -= lso->link_failure_count;
7149 hs->loss_of_sync_count -= lso->loss_of_sync_count;
7150 hs->loss_of_signal_count -= lso->loss_of_signal_count;
7151 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
7152 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
7153 hs->invalid_crc_count -= lso->invalid_crc_count;
7154 hs->error_frames -= lso->error_frames;
7156 if (phba->hba_flag & HBA_FCOE_MODE) {
7158 hs->nos_count = (phba->link_events >> 1);
7159 hs->nos_count -= lso->link_events;
7160 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7161 hs->lip_count = (phba->fc_eventTag >> 1);
7162 hs->lip_count -= lso->link_events;
7166 hs->nos_count = (phba->fc_eventTag >> 1);
7167 hs->nos_count -= lso->link_events;
7170 hs->dumped_frames = -1;
7172 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start;
7174 mempool_free(pmboxq, phba->mbox_mem_pool);
7180 * lpfc_reset_stats - Copy the adapter link stats information
7181 * @shost: kernel scsi host pointer.
7184 lpfc_reset_stats(struct Scsi_Host *shost)
7186 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7187 struct lpfc_hba *phba = vport->phba;
7188 struct lpfc_sli *psli = &phba->sli;
7189 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
7190 LPFC_MBOXQ_t *pmboxq;
7194 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
7197 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7200 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
7202 pmb = &pmboxq->u.mb;
7203 pmb->mbxCommand = MBX_READ_STATUS;
7204 pmb->mbxOwner = OWN_HOST;
7205 pmb->un.varWords[0] = 0x1; /* reset request */
7206 pmboxq->ctx_buf = NULL;
7207 pmboxq->vport = vport;
7209 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
7210 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
7211 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
7212 if (rc != MBX_SUCCESS) {
7213 mempool_free(pmboxq, phba->mbox_mem_pool);
7217 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
7218 if (rc != MBX_SUCCESS) {
7219 if (rc != MBX_TIMEOUT)
7220 mempool_free(pmboxq, phba->mbox_mem_pool);
7225 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
7226 pmb->mbxCommand = MBX_READ_LNK_STAT;
7227 pmb->mbxOwner = OWN_HOST;
7228 pmboxq->ctx_buf = NULL;
7229 pmboxq->vport = vport;
7231 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
7232 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) {
7233 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
7234 if (rc != MBX_SUCCESS) {
7235 mempool_free(pmboxq, phba->mbox_mem_pool);
7239 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
7240 if (rc != MBX_SUCCESS) {
7241 if (rc != MBX_TIMEOUT)
7242 mempool_free(pmboxq, phba->mbox_mem_pool);
7247 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
7248 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
7249 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
7250 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
7251 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
7252 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
7253 lso->error_frames = pmb->un.varRdLnk.crcCnt;
7254 if (phba->hba_flag & HBA_FCOE_MODE)
7255 lso->link_events = (phba->link_events >> 1);
7257 lso->link_events = (phba->fc_eventTag >> 1);
7259 atomic64_set(&phba->cgn_acqe_stat.warn, 0);
7260 atomic64_set(&phba->cgn_acqe_stat.alarm, 0);
7262 memset(&shost_to_fc_host(shost)->fpin_stats, 0,
7263 sizeof(shost_to_fc_host(shost)->fpin_stats));
7265 psli->stats_start = ktime_get_seconds();
7267 mempool_free(pmboxq, phba->mbox_mem_pool);
7273 * The LPFC driver treats linkdown handling as target loss events so there
7274 * are no sysfs handlers for link_down_tmo.
7278 * lpfc_get_node_by_target - Return the nodelist for a target
7279 * @starget: kernel scsi target pointer.
7282 * address of the node list if found
7283 * NULL target not found
7285 static struct lpfc_nodelist *
7286 lpfc_get_node_by_target(struct scsi_target *starget)
7288 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
7289 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7290 struct lpfc_nodelist *ndlp;
7292 spin_lock_irq(shost->host_lock);
7293 /* Search for this, mapped, target ID */
7294 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
7295 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
7296 starget->id == ndlp->nlp_sid) {
7297 spin_unlock_irq(shost->host_lock);
7301 spin_unlock_irq(shost->host_lock);
7306 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
7307 * @starget: kernel scsi target pointer.
7310 lpfc_get_starget_port_id(struct scsi_target *starget)
7312 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
7314 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
7318 * lpfc_get_starget_node_name - Set the target node name
7319 * @starget: kernel scsi target pointer.
7321 * Description: Set the target node name to the ndlp node name wwn or zero.
7324 lpfc_get_starget_node_name(struct scsi_target *starget)
7326 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
7328 fc_starget_node_name(starget) =
7329 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
7333 * lpfc_get_starget_port_name - Set the target port name
7334 * @starget: kernel scsi target pointer.
7336 * Description: set the target port name to the ndlp port name wwn or zero.
7339 lpfc_get_starget_port_name(struct scsi_target *starget)
7341 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
7343 fc_starget_port_name(starget) =
7344 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
7348 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
7349 * @rport: fc rport address.
7350 * @timeout: new value for dev loss tmo.
7353 * If timeout is non zero set the dev_loss_tmo to timeout, else set
7354 * dev_loss_tmo to one.
7357 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
7359 struct lpfc_rport_data *rdata = rport->dd_data;
7360 struct lpfc_nodelist *ndlp = rdata->pnode;
7361 #if (IS_ENABLED(CONFIG_NVME_FC))
7362 struct lpfc_nvme_rport *nrport = NULL;
7366 rport->dev_loss_tmo = timeout;
7368 rport->dev_loss_tmo = 1;
7371 dev_info(&rport->dev, "Cannot find remote node to "
7372 "set rport dev loss tmo, port_id x%x\n",
7377 #if (IS_ENABLED(CONFIG_NVME_FC))
7378 nrport = lpfc_ndlp_get_nrport(ndlp);
7380 if (nrport && nrport->remoteport)
7381 nvme_fc_set_remoteport_devloss(nrport->remoteport,
7382 rport->dev_loss_tmo);
7387 * lpfc_rport_show_function - Return rport target information
7390 * Macro that uses field to generate a function with the name lpfc_show_rport_
7392 * lpfc_show_rport_##field: returns the bytes formatted in buf
7393 * @cdev: class converted to an fc_rport.
7394 * @buf: on return contains the target_field or zero.
7396 * Returns: size of formatted string.
7398 #define lpfc_rport_show_function(field, format_string, sz, cast) \
7400 lpfc_show_rport_##field (struct device *dev, \
7401 struct device_attribute *attr, \
7404 struct fc_rport *rport = transport_class_to_rport(dev); \
7405 struct lpfc_rport_data *rdata = rport->hostdata; \
7406 return scnprintf(buf, sz, format_string, \
7407 (rdata->target) ? cast rdata->target->field : 0); \
7410 #define lpfc_rport_rd_attr(field, format_string, sz) \
7411 lpfc_rport_show_function(field, format_string, sz, ) \
7412 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
7415 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
7416 * @fc_vport: The fc_vport who's symbolic name has been changed.
7419 * This function is called by the transport after the @fc_vport's symbolic name
7420 * has been changed. This function re-registers the symbolic name with the
7421 * switch to propagate the change into the fabric if the vport is active.
7424 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
7426 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
7428 if (vport->port_state == LPFC_VPORT_READY)
7429 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
7433 * lpfc_hba_log_verbose_init - Set hba's log verbose level
7434 * @phba: Pointer to lpfc_hba struct.
7435 * @verbose: Verbose level to set.
7437 * This function is called by the lpfc_get_cfgparam() routine to set the
7438 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
7439 * log message according to the module's lpfc_log_verbose parameter setting
7440 * before hba port or vport created.
7443 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
7445 phba->cfg_log_verbose = verbose;
7448 struct fc_function_template lpfc_transport_functions = {
7449 /* fixed attributes the driver supports */
7450 .show_host_node_name = 1,
7451 .show_host_port_name = 1,
7452 .show_host_supported_classes = 1,
7453 .show_host_supported_fc4s = 1,
7454 .show_host_supported_speeds = 1,
7455 .show_host_maxframe_size = 1,
7457 .get_host_symbolic_name = lpfc_get_host_symbolic_name,
7458 .show_host_symbolic_name = 1,
7460 /* dynamic attributes the driver supports */
7461 .get_host_port_id = lpfc_get_host_port_id,
7462 .show_host_port_id = 1,
7464 .get_host_port_type = lpfc_get_host_port_type,
7465 .show_host_port_type = 1,
7467 .get_host_port_state = lpfc_get_host_port_state,
7468 .show_host_port_state = 1,
7470 /* active_fc4s is shown but doesn't change (thus no get function) */
7471 .show_host_active_fc4s = 1,
7473 .get_host_speed = lpfc_get_host_speed,
7474 .show_host_speed = 1,
7476 .get_host_fabric_name = lpfc_get_host_fabric_name,
7477 .show_host_fabric_name = 1,
7480 * The LPFC driver treats linkdown handling as target loss events
7481 * so there are no sysfs handlers for link_down_tmo.
7484 .get_fc_host_stats = lpfc_get_stats,
7485 .reset_fc_host_stats = lpfc_reset_stats,
7487 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
7488 .show_rport_maxframe_size = 1,
7489 .show_rport_supported_classes = 1,
7491 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
7492 .show_rport_dev_loss_tmo = 1,
7494 .get_starget_port_id = lpfc_get_starget_port_id,
7495 .show_starget_port_id = 1,
7497 .get_starget_node_name = lpfc_get_starget_node_name,
7498 .show_starget_node_name = 1,
7500 .get_starget_port_name = lpfc_get_starget_port_name,
7501 .show_starget_port_name = 1,
7503 .issue_fc_host_lip = lpfc_issue_lip,
7504 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
7505 .terminate_rport_io = lpfc_terminate_rport_io,
7507 .dd_fcvport_size = sizeof(struct lpfc_vport *),
7509 .vport_disable = lpfc_vport_disable,
7511 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
7513 .bsg_request = lpfc_bsg_request,
7514 .bsg_timeout = lpfc_bsg_timeout,
7517 struct fc_function_template lpfc_vport_transport_functions = {
7518 /* fixed attributes the driver supports */
7519 .show_host_node_name = 1,
7520 .show_host_port_name = 1,
7521 .show_host_supported_classes = 1,
7522 .show_host_supported_fc4s = 1,
7523 .show_host_supported_speeds = 1,
7524 .show_host_maxframe_size = 1,
7526 .get_host_symbolic_name = lpfc_get_host_symbolic_name,
7527 .show_host_symbolic_name = 1,
7529 /* dynamic attributes the driver supports */
7530 .get_host_port_id = lpfc_get_host_port_id,
7531 .show_host_port_id = 1,
7533 .get_host_port_type = lpfc_get_host_port_type,
7534 .show_host_port_type = 1,
7536 .get_host_port_state = lpfc_get_host_port_state,
7537 .show_host_port_state = 1,
7539 /* active_fc4s is shown but doesn't change (thus no get function) */
7540 .show_host_active_fc4s = 1,
7542 .get_host_speed = lpfc_get_host_speed,
7543 .show_host_speed = 1,
7545 .get_host_fabric_name = lpfc_get_host_fabric_name,
7546 .show_host_fabric_name = 1,
7549 * The LPFC driver treats linkdown handling as target loss events
7550 * so there are no sysfs handlers for link_down_tmo.
7553 .get_fc_host_stats = lpfc_get_stats,
7554 .reset_fc_host_stats = lpfc_reset_stats,
7556 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
7557 .show_rport_maxframe_size = 1,
7558 .show_rport_supported_classes = 1,
7560 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
7561 .show_rport_dev_loss_tmo = 1,
7563 .get_starget_port_id = lpfc_get_starget_port_id,
7564 .show_starget_port_id = 1,
7566 .get_starget_node_name = lpfc_get_starget_node_name,
7567 .show_starget_node_name = 1,
7569 .get_starget_port_name = lpfc_get_starget_port_name,
7570 .show_starget_port_name = 1,
7572 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
7573 .terminate_rport_io = lpfc_terminate_rport_io,
7575 .vport_disable = lpfc_vport_disable,
7577 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
7581 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE
7583 * @phba: lpfc_hba pointer.
7586 lpfc_get_hba_function_mode(struct lpfc_hba *phba)
7588 /* If the adapter supports FCoE mode */
7589 switch (phba->pcidev->device) {
7590 case PCI_DEVICE_ID_SKYHAWK:
7591 case PCI_DEVICE_ID_SKYHAWK_VF:
7592 case PCI_DEVICE_ID_LANCER_FCOE:
7593 case PCI_DEVICE_ID_LANCER_FCOE_VF:
7594 case PCI_DEVICE_ID_ZEPHYR_DCSP:
7595 case PCI_DEVICE_ID_HORNET:
7596 case PCI_DEVICE_ID_TIGERSHARK:
7597 case PCI_DEVICE_ID_TOMCAT:
7598 phba->hba_flag |= HBA_FCOE_MODE;
7601 /* for others, clear the flag */
7602 phba->hba_flag &= ~HBA_FCOE_MODE;
7607 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
7608 * @phba: lpfc_hba pointer.
7611 lpfc_get_cfgparam(struct lpfc_hba *phba)
7613 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
7614 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched);
7615 lpfc_ns_query_init(phba, lpfc_ns_query);
7616 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset);
7617 lpfc_cr_delay_init(phba, lpfc_cr_delay);
7618 lpfc_cr_count_init(phba, lpfc_cr_count);
7619 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
7620 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
7621 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
7622 lpfc_ack0_init(phba, lpfc_ack0);
7623 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing);
7624 lpfc_topology_init(phba, lpfc_topology);
7625 lpfc_link_speed_init(phba, lpfc_link_speed);
7626 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
7627 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo);
7628 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
7629 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
7630 lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
7631 lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp);
7632 lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
7633 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN);
7634 lpfc_use_msi_init(phba, lpfc_use_msi);
7635 lpfc_nvme_oas_init(phba, lpfc_nvme_oas);
7636 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd);
7637 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
7638 lpfc_force_rscn_init(phba, lpfc_force_rscn);
7639 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold);
7640 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit);
7641 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map);
7642 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
7643 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
7645 lpfc_EnableXLane_init(phba, lpfc_EnableXLane);
7647 lpfc_max_vmid_init(phba, lpfc_max_vmid);
7648 lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout);
7649 lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header);
7650 lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging);
7651 if (phba->sli_rev != LPFC_SLI_REV4)
7652 phba->cfg_EnableXLane = 0;
7653 lpfc_XLanePriority_init(phba, lpfc_XLanePriority);
7655 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t)));
7656 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t)));
7657 phba->cfg_oas_lun_state = 0;
7658 phba->cfg_oas_lun_status = 0;
7659 phba->cfg_oas_flags = 0;
7660 phba->cfg_oas_priority = 0;
7661 lpfc_enable_bg_init(phba, lpfc_enable_bg);
7662 lpfc_prot_mask_init(phba, lpfc_prot_mask);
7663 lpfc_prot_guard_init(phba, lpfc_prot_guard);
7664 if (phba->sli_rev == LPFC_SLI_REV4)
7667 phba->cfg_poll = lpfc_poll;
7669 /* Get the function mode */
7670 lpfc_get_hba_function_mode(phba);
7672 /* BlockGuard allowed for FC only. */
7673 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) {
7674 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7675 "0581 BlockGuard feature not supported\n");
7676 /* If set, clear the BlockGuard support param */
7677 phba->cfg_enable_bg = 0;
7678 } else if (phba->cfg_enable_bg) {
7679 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
7682 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp);
7684 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type);
7685 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq);
7686 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post);
7688 /* Initialize first burst. Target vs Initiator are different. */
7689 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb);
7690 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size);
7691 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold);
7692 lpfc_hdw_queue_init(phba, lpfc_hdw_queue);
7693 lpfc_irq_chann_init(phba, lpfc_irq_chann);
7694 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr);
7695 lpfc_enable_dpp_init(phba, lpfc_enable_dpp);
7696 lpfc_enable_mi_init(phba, lpfc_enable_mi);
7698 phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF;
7699 phba->cmf_active_mode = LPFC_CFG_OFF;
7700 if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX ||
7701 lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN)
7702 lpfc_fabric_cgn_frequency = 100; /* 100 ms default */
7704 if (phba->sli_rev != LPFC_SLI_REV4) {
7705 /* NVME only supported on SLI4 */
7706 phba->nvmet_support = 0;
7707 phba->cfg_nvmet_mrq = 0;
7708 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
7709 phba->cfg_enable_bbcr = 0;
7710 phba->cfg_xri_rebalancing = 0;
7712 /* We MUST have FCP support */
7713 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
7714 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP;
7717 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1;
7719 phba->cfg_enable_pbde = 0;
7721 /* A value of 0 means use the number of CPUs found in the system */
7722 if (phba->cfg_hdw_queue == 0)
7723 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu;
7724 if (phba->cfg_irq_chann == 0)
7725 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu;
7726 if (phba->cfg_irq_chann > phba->cfg_hdw_queue &&
7727 phba->sli_rev == LPFC_SLI_REV4)
7728 phba->cfg_irq_chann = phba->cfg_hdw_queue;
7730 phba->cfg_soft_wwnn = 0L;
7731 phba->cfg_soft_wwpn = 0L;
7732 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
7733 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
7734 lpfc_aer_support_init(phba, lpfc_aer_support);
7735 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
7736 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade);
7737 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
7738 lpfc_delay_discovery_init(phba, lpfc_delay_discovery);
7739 lpfc_sli_mode_init(phba, lpfc_sli_mode);
7740 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags);
7741 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize);
7742 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level);
7743 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func);
7749 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on
7750 * dependencies between protocols and roles.
7751 * @phba: lpfc_hba pointer.
7754 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba)
7758 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) {
7759 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu;
7762 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) {
7763 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu;
7766 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) {
7767 phba->cfg_irq_chann = phba->cfg_hdw_queue;
7771 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7772 "2006 Reducing Queues - CPU limitation: "
7774 phba->cfg_irq_chann,
7775 phba->cfg_hdw_queue);
7777 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
7778 phba->nvmet_support) {
7779 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP;
7781 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
7782 "6013 %s x%x fb_size x%x, fb_max x%x\n",
7783 "NVME Target PRLI ACC enable_fb ",
7784 phba->cfg_nvme_enable_fb,
7785 phba->cfg_nvmet_fb_size,
7786 LPFC_NVMET_FB_SZ_MAX);
7788 if (phba->cfg_nvme_enable_fb == 0)
7789 phba->cfg_nvmet_fb_size = 0;
7791 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX)
7792 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX;
7795 if (!phba->cfg_nvmet_mrq)
7796 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
7798 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */
7799 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) {
7800 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
7801 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
7802 "6018 Adjust lpfc_nvmet_mrq to %d\n",
7803 phba->cfg_nvmet_mrq);
7805 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
7806 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
7809 /* Not NVME Target mode. Turn off Target parameters. */
7810 phba->nvmet_support = 0;
7811 phba->cfg_nvmet_mrq = 0;
7812 phba->cfg_nvmet_fb_size = 0;
7817 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
7818 * @vport: lpfc_vport pointer.
7821 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
7823 lpfc_log_verbose_init(vport, lpfc_log_verbose);
7824 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
7825 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
7826 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
7827 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
7828 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
7829 lpfc_restrict_login_init(vport, lpfc_restrict_login);
7830 lpfc_fcp_class_init(vport, lpfc_fcp_class);
7831 lpfc_use_adisc_init(vport, lpfc_use_adisc);
7832 lpfc_first_burst_size_init(vport, lpfc_first_burst_size);
7833 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
7834 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
7835 lpfc_max_luns_init(vport, lpfc_max_luns);
7836 lpfc_scan_down_init(vport, lpfc_scan_down);
7837 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);