1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2006 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/ctype.h>
23 #include <linux/delay.h>
24 #include <linux/pci.h>
25 #include <linux/interrupt.h>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_tcq.h>
31 #include <scsi/scsi_transport_fc.h>
35 #include "lpfc_disc.h"
36 #include "lpfc_scsi.h"
38 #include "lpfc_logmsg.h"
39 #include "lpfc_version.h"
40 #include "lpfc_compat.h"
41 #include "lpfc_crtn.h"
43 #define LPFC_DEF_DEVLOSS_TMO 30
44 #define LPFC_MIN_DEVLOSS_TMO 1
45 #define LPFC_MAX_DEVLOSS_TMO 255
48 lpfc_jedec_to_ascii(int incr, char hdw[])
51 for (i = 0; i < 8; i++) {
54 hdw[7 - i] = 0x30 + j;
56 hdw[7 - i] = 0x61 + j - 10;
64 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
66 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
70 management_version_show(struct class_device *cdev, char *buf)
72 return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
76 lpfc_info_show(struct class_device *cdev, char *buf)
78 struct Scsi_Host *host = class_to_shost(cdev);
79 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
83 lpfc_serialnum_show(struct class_device *cdev, char *buf)
85 struct Scsi_Host *host = class_to_shost(cdev);
86 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
87 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
91 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
93 struct Scsi_Host *host = class_to_shost(cdev);
94 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
95 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
99 lpfc_modelname_show(struct class_device *cdev, char *buf)
101 struct Scsi_Host *host = class_to_shost(cdev);
102 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
103 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
107 lpfc_programtype_show(struct class_device *cdev, char *buf)
109 struct Scsi_Host *host = class_to_shost(cdev);
110 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
111 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
115 lpfc_portnum_show(struct class_device *cdev, char *buf)
117 struct Scsi_Host *host = class_to_shost(cdev);
118 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
119 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
123 lpfc_fwrev_show(struct class_device *cdev, char *buf)
125 struct Scsi_Host *host = class_to_shost(cdev);
126 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
128 lpfc_decode_firmware_rev(phba, fwrev, 1);
129 return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
133 lpfc_hdw_show(struct class_device *cdev, char *buf)
136 struct Scsi_Host *host = class_to_shost(cdev);
137 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
138 lpfc_vpd_t *vp = &phba->vpd;
139 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
140 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
143 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
145 struct Scsi_Host *host = class_to_shost(cdev);
146 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
147 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
150 lpfc_state_show(struct class_device *cdev, char *buf)
152 struct Scsi_Host *host = class_to_shost(cdev);
153 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
155 switch (phba->hba_state) {
156 case LPFC_STATE_UNKNOWN:
157 case LPFC_WARM_START:
158 case LPFC_INIT_START:
159 case LPFC_INIT_MBX_CMDS:
161 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
164 case LPFC_LOCAL_CFG_LINK:
165 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
168 case LPFC_FABRIC_CFG_LINK:
171 case LPFC_BUILD_DISC_LIST:
174 len += snprintf(buf + len, PAGE_SIZE-len,
175 "Link Up - Discovery\n");
178 len += snprintf(buf + len, PAGE_SIZE-len,
179 "Link Up - Ready:\n");
180 if (phba->fc_topology == TOPOLOGY_LOOP) {
181 if (phba->fc_flag & FC_PUBLIC_LOOP)
182 len += snprintf(buf + len, PAGE_SIZE-len,
185 len += snprintf(buf + len, PAGE_SIZE-len,
188 if (phba->fc_flag & FC_FABRIC)
189 len += snprintf(buf + len, PAGE_SIZE-len,
192 len += snprintf(buf + len, PAGE_SIZE-len,
200 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
202 struct Scsi_Host *host = class_to_shost(cdev);
203 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
204 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
210 lpfc_issue_lip(struct Scsi_Host *host)
212 struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata;
213 LPFC_MBOXQ_t *pmboxq;
214 int mbxstatus = MBXERR_ERROR;
216 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
217 (phba->fc_flag & FC_BLOCK_MGMT_IO) ||
218 (phba->hba_state != LPFC_HBA_READY))
221 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
226 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
227 pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
228 pmboxq->mb.mbxOwner = OWN_HOST;
230 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
232 if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
233 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
234 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
235 phba->cfg_link_speed);
236 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
240 lpfc_set_loopback_flag(phba);
241 if (mbxstatus == MBX_TIMEOUT)
242 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
244 mempool_free(pmboxq, phba->mbox_mem_pool);
246 if (mbxstatus == MBXERR_ERROR)
253 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
255 struct completion online_compl;
256 struct lpfc_sli_ring *pring;
257 struct lpfc_sli *psli;
262 init_completion(&online_compl);
263 lpfc_workq_post_event(phba, &status, &online_compl,
264 LPFC_EVT_OFFLINE_PREP);
265 wait_for_completion(&online_compl);
272 for (i = 0; i < psli->num_rings; i++) {
273 pring = &psli->ring[i];
274 /* The linkdown event takes 30 seconds to timeout. */
275 while (pring->txcmplq_cnt) {
278 lpfc_printf_log(phba,
279 KERN_WARNING, LOG_INIT,
280 "%d:0466 Outstanding IO when "
281 "bringing Adapter offline\n",
288 init_completion(&online_compl);
289 lpfc_workq_post_event(phba, &status, &online_compl, type);
290 wait_for_completion(&online_compl);
299 lpfc_selective_reset(struct lpfc_hba *phba)
301 struct completion online_compl;
304 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
309 init_completion(&online_compl);
310 lpfc_workq_post_event(phba, &status, &online_compl,
312 wait_for_completion(&online_compl);
321 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
323 struct Scsi_Host *host = class_to_shost(cdev);
324 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
325 int status = -EINVAL;
327 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
328 status = lpfc_selective_reset(phba);
337 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
339 struct Scsi_Host *host = class_to_shost(cdev);
340 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
341 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
345 lpfc_board_mode_show(struct class_device *cdev, char *buf)
347 struct Scsi_Host *host = class_to_shost(cdev);
348 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
351 if (phba->hba_state == LPFC_HBA_ERROR)
353 else if (phba->hba_state == LPFC_WARM_START)
354 state = "warm start";
355 else if (phba->hba_state == LPFC_INIT_START)
360 return snprintf(buf, PAGE_SIZE, "%s\n", state);
364 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
366 struct Scsi_Host *host = class_to_shost(cdev);
367 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
368 struct completion online_compl;
371 init_completion(&online_compl);
373 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
374 lpfc_workq_post_event(phba, &status, &online_compl,
376 wait_for_completion(&online_compl);
377 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
378 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
379 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
380 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
381 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
382 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
393 lpfc_poll_show(struct class_device *cdev, char *buf)
395 struct Scsi_Host *host = class_to_shost(cdev);
396 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
398 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
402 lpfc_poll_store(struct class_device *cdev, const char *buf,
405 struct Scsi_Host *host = class_to_shost(cdev);
406 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
411 if (!isdigit(buf[0]))
414 if (sscanf(buf, "%i", &val) != 1)
417 if ((val & 0x3) != val)
420 spin_lock_irq(phba->host->host_lock);
422 old_val = phba->cfg_poll;
424 if (val & ENABLE_FCP_RING_POLLING) {
425 if ((val & DISABLE_FCP_RING_INT) &&
426 !(old_val & DISABLE_FCP_RING_INT)) {
427 creg_val = readl(phba->HCregaddr);
428 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
429 writel(creg_val, phba->HCregaddr);
430 readl(phba->HCregaddr); /* flush */
432 lpfc_poll_start_timer(phba);
434 } else if (val != 0x0) {
435 spin_unlock_irq(phba->host->host_lock);
439 if (!(val & DISABLE_FCP_RING_INT) &&
440 (old_val & DISABLE_FCP_RING_INT))
442 spin_unlock_irq(phba->host->host_lock);
443 del_timer(&phba->fcp_poll_timer);
444 spin_lock_irq(phba->host->host_lock);
445 creg_val = readl(phba->HCregaddr);
446 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
447 writel(creg_val, phba->HCregaddr);
448 readl(phba->HCregaddr); /* flush */
451 phba->cfg_poll = val;
453 spin_unlock_irq(phba->host->host_lock);
458 #define lpfc_param_show(attr) \
460 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
462 struct Scsi_Host *host = class_to_shost(cdev);\
463 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
465 val = phba->cfg_##attr;\
466 return snprintf(buf, PAGE_SIZE, "%d\n",\
470 #define lpfc_param_hex_show(attr) \
472 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
474 struct Scsi_Host *host = class_to_shost(cdev);\
475 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
477 val = phba->cfg_##attr;\
478 return snprintf(buf, PAGE_SIZE, "%#x\n",\
482 #define lpfc_param_init(attr, default, minval, maxval) \
484 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
486 if (val >= minval && val <= maxval) {\
487 phba->cfg_##attr = val;\
490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
491 "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
492 "allowed range is ["#minval", "#maxval"]\n", \
493 phba->brd_no, val); \
494 phba->cfg_##attr = default;\
498 #define lpfc_param_set(attr, default, minval, maxval) \
500 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
502 if (val >= minval && val <= maxval) {\
503 phba->cfg_##attr = val;\
506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
507 "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
508 "allowed range is ["#minval", "#maxval"]\n", \
509 phba->brd_no, val); \
513 #define lpfc_param_store(attr) \
515 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
517 struct Scsi_Host *host = class_to_shost(cdev);\
518 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;\
520 if (!isdigit(buf[0]))\
522 if (sscanf(buf, "%i", &val) != 1)\
524 if (lpfc_##attr##_set(phba, val) == 0) \
530 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
531 static int lpfc_##name = defval;\
532 module_param(lpfc_##name, int, 0);\
533 MODULE_PARM_DESC(lpfc_##name, desc);\
534 lpfc_param_init(name, defval, minval, maxval)
536 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
537 static int lpfc_##name = defval;\
538 module_param(lpfc_##name, int, 0);\
539 MODULE_PARM_DESC(lpfc_##name, desc);\
540 lpfc_param_show(name)\
541 lpfc_param_init(name, defval, minval, maxval)\
542 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
544 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
545 static int lpfc_##name = defval;\
546 module_param(lpfc_##name, int, 0);\
547 MODULE_PARM_DESC(lpfc_##name, desc);\
548 lpfc_param_show(name)\
549 lpfc_param_init(name, defval, minval, maxval)\
550 lpfc_param_set(name, defval, minval, maxval)\
551 lpfc_param_store(name)\
552 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
553 lpfc_##name##_show, lpfc_##name##_store)
555 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
556 static int lpfc_##name = defval;\
557 module_param(lpfc_##name, int, 0);\
558 MODULE_PARM_DESC(lpfc_##name, desc);\
559 lpfc_param_hex_show(name)\
560 lpfc_param_init(name, defval, minval, maxval)\
561 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
563 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
564 static int lpfc_##name = defval;\
565 module_param(lpfc_##name, int, 0);\
566 MODULE_PARM_DESC(lpfc_##name, desc);\
567 lpfc_param_hex_show(name)\
568 lpfc_param_init(name, defval, minval, maxval)\
569 lpfc_param_set(name, defval, minval, maxval)\
570 lpfc_param_store(name)\
571 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
572 lpfc_##name##_show, lpfc_##name##_store)
574 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
575 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
576 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
577 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
578 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
579 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
580 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
581 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
582 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
583 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
584 lpfc_option_rom_version_show, NULL);
585 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
586 lpfc_num_discovered_ports_show, NULL);
587 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
588 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
590 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
592 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
593 lpfc_board_mode_show, lpfc_board_mode_store);
594 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
597 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
600 lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
603 struct Scsi_Host *host = class_to_shost(cdev);
604 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
605 unsigned int cnt = count;
608 * We're doing a simple sanity check for soft_wwpn setting.
609 * We require that the user write a specific key to enable
610 * the soft_wwpn attribute to be settable. Once the attribute
611 * is written, the enable key resets. If further updates are
612 * desired, the key must be written again to re-enable the
615 * The "key" is not secret - it is a hardcoded string shown
616 * here. The intent is to protect against the random user or
617 * application that is just writing attributes.
620 /* count may include a LF at end of string */
621 if (buf[cnt-1] == '\n')
624 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
625 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
628 phba->soft_wwn_enable = 1;
631 static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
632 lpfc_soft_wwn_enable_store);
635 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
637 struct Scsi_Host *host = class_to_shost(cdev);
638 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
639 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
640 (unsigned long long)phba->cfg_soft_wwpn);
645 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
647 struct Scsi_Host *host = class_to_shost(cdev);
648 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
649 struct completion online_compl;
650 int stat1=0, stat2=0;
651 unsigned int i, j, cnt=count;
654 /* count may include a LF at end of string */
655 if (buf[cnt-1] == '\n')
658 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
659 ((cnt == 17) && (*buf++ != 'x')) ||
660 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
663 phba->soft_wwn_enable = 0;
665 memset(wwpn, 0, sizeof(wwpn));
667 /* Validate and store the new name */
668 for (i=0, j=0; i < 16; i++) {
669 if ((*buf >= 'a') && (*buf <= 'f'))
670 j = ((j << 4) | ((*buf++ -'a') + 10));
671 else if ((*buf >= 'A') && (*buf <= 'F'))
672 j = ((j << 4) | ((*buf++ -'A') + 10));
673 else if ((*buf >= '0') && (*buf <= '9'))
674 j = ((j << 4) | (*buf++ -'0'));
678 wwpn[i/2] = j & 0xff;
682 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
683 fc_host_port_name(host) = phba->cfg_soft_wwpn;
684 if (phba->cfg_soft_wwnn)
685 fc_host_node_name(host) = phba->cfg_soft_wwnn;
687 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
688 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
690 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
693 "%d:0463 lpfc_soft_wwpn attribute set failed to reinit "
694 "adapter - %d\n", phba->brd_no, stat1);
696 init_completion(&online_compl);
697 lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
698 wait_for_completion(&online_compl);
700 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
701 "%d:0464 lpfc_soft_wwpn attribute set failed to reinit "
702 "adapter - %d\n", phba->brd_no, stat2);
704 return (stat1 || stat2) ? -EIO : count;
706 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
707 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
710 lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
712 struct Scsi_Host *host = class_to_shost(cdev);
713 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
714 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
715 (unsigned long long)phba->cfg_soft_wwnn);
720 lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
722 struct Scsi_Host *host = class_to_shost(cdev);
723 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
724 unsigned int i, j, cnt=count;
727 /* count may include a LF at end of string */
728 if (buf[cnt-1] == '\n')
731 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
732 ((cnt == 17) && (*buf++ != 'x')) ||
733 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
737 * Allow wwnn to be set many times, as long as the enable is set.
738 * However, once the wwpn is set, everything locks.
741 memset(wwnn, 0, sizeof(wwnn));
743 /* Validate and store the new name */
744 for (i=0, j=0; i < 16; i++) {
745 if ((*buf >= 'a') && (*buf <= 'f'))
746 j = ((j << 4) | ((*buf++ -'a') + 10));
747 else if ((*buf >= 'A') && (*buf <= 'F'))
748 j = ((j << 4) | ((*buf++ -'A') + 10));
749 else if ((*buf >= '0') && (*buf <= '9'))
750 j = ((j << 4) | (*buf++ -'0'));
754 wwnn[i/2] = j & 0xff;
758 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
760 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
761 "lpfc%d: soft_wwnn set. Value will take effect upon "
762 "setting of the soft_wwpn\n", phba->brd_no);
766 static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
767 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
770 static int lpfc_poll = 0;
771 module_param(lpfc_poll, int, 0);
772 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
774 " 1 - poll with interrupts enabled"
775 " 3 - poll and disable FCP ring interrupts");
777 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
778 lpfc_poll_show, lpfc_poll_store);
781 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
782 # until the timer expires. Value range is [0,255]. Default value is 30.
784 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
785 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
786 module_param(lpfc_nodev_tmo, int, 0);
787 MODULE_PARM_DESC(lpfc_nodev_tmo,
788 "Seconds driver will hold I/O waiting "
789 "for a device to come back");
791 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
793 struct Scsi_Host *host = class_to_shost(cdev);
794 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
796 val = phba->cfg_devloss_tmo;
797 return snprintf(buf, PAGE_SIZE, "%d\n",
798 phba->cfg_devloss_tmo);
802 lpfc_nodev_tmo_init(struct lpfc_hba *phba, int val)
805 if (phba->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
806 phba->cfg_nodev_tmo = phba->cfg_devloss_tmo;
807 if (!warned && val != LPFC_DEF_DEVLOSS_TMO) {
809 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
810 "%d:0402 Ignoring nodev_tmo module "
811 "parameter because devloss_tmo is"
818 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
819 phba->cfg_nodev_tmo = val;
820 phba->cfg_devloss_tmo = val;
823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
824 "%d:0400 lpfc_nodev_tmo attribute cannot be set to %d, "
825 "allowed range is [%d, %d]\n",
827 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
828 phba->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
833 lpfc_update_rport_devloss_tmo(struct lpfc_hba *phba)
835 struct lpfc_nodelist *ndlp;
837 spin_lock_irq(phba->host->host_lock);
838 list_for_each_entry(ndlp, &phba->fc_nodes, nlp_listp)
840 ndlp->rport->dev_loss_tmo = phba->cfg_devloss_tmo;
841 spin_unlock_irq(phba->host->host_lock);
845 lpfc_nodev_tmo_set(struct lpfc_hba *phba, int val)
847 if (phba->dev_loss_tmo_changed ||
848 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
849 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
850 "%d:0401 Ignoring change to nodev_tmo "
851 "because devloss_tmo is set.\n",
856 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
857 phba->cfg_nodev_tmo = val;
858 phba->cfg_devloss_tmo = val;
859 lpfc_update_rport_devloss_tmo(phba);
863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
864 "%d:0403 lpfc_nodev_tmo attribute cannot be set to %d, "
865 "allowed range is [%d, %d]\n",
866 phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
867 LPFC_MAX_DEVLOSS_TMO);
871 lpfc_param_store(nodev_tmo)
873 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
874 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
877 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
878 # disappear until the timer expires. Value range is [0,255]. Default
881 module_param(lpfc_devloss_tmo, int, 0);
882 MODULE_PARM_DESC(lpfc_devloss_tmo,
883 "Seconds driver will hold I/O waiting "
884 "for a device to come back");
885 lpfc_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
886 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
887 lpfc_param_show(devloss_tmo)
889 lpfc_devloss_tmo_set(struct lpfc_hba *phba, int val)
891 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
892 phba->cfg_nodev_tmo = val;
893 phba->cfg_devloss_tmo = val;
894 phba->dev_loss_tmo_changed = 1;
895 lpfc_update_rport_devloss_tmo(phba);
899 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
900 "%d:0404 lpfc_devloss_tmo attribute cannot be set to"
901 " %d, allowed range is [%d, %d]\n",
902 phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
903 LPFC_MAX_DEVLOSS_TMO);
907 lpfc_param_store(devloss_tmo)
908 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
909 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
912 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
913 # deluged with LOTS of information.
914 # You can set a bit mask to record specific types of verbose messages:
916 # LOG_ELS 0x1 ELS events
917 # LOG_DISCOVERY 0x2 Link discovery events
918 # LOG_MBOX 0x4 Mailbox events
919 # LOG_INIT 0x8 Initialization events
920 # LOG_LINK_EVENT 0x10 Link events
921 # LOG_FCP 0x40 FCP traffic history
922 # LOG_NODE 0x80 Node table events
923 # LOG_MISC 0x400 Miscellaneous events
924 # LOG_SLI 0x800 SLI events
925 # LOG_FCP_ERROR 0x1000 Only log FCP errors
926 # LOG_LIBDFC 0x2000 LIBDFC events
927 # LOG_ALL_MSG 0xffff LOG all messages
929 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
932 # lun_queue_depth: This parameter is used to limit the number of outstanding
933 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
935 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
936 "Max number of FCP commands we can queue to a specific LUN");
939 # hba_queue_depth: This parameter is used to limit the number of outstanding
940 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
941 # value is greater than the maximum number of exchanges supported by the HBA,
942 # then maximum number of exchanges supported by the HBA is used to determine
943 # the hba_queue_depth.
945 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
946 "Max number of FCP commands we can queue to a lpfc HBA");
949 # Some disk devices have a "select ID" or "select Target" capability.
950 # From a protocol standpoint "select ID" usually means select the
951 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
952 # annex" which contains a table that maps a "select ID" (a number
953 # between 0 and 7F) to an ALPA. By default, for compatibility with
954 # older drivers, the lpfc driver scans this table from low ALPA to high
957 # Turning on the scan-down variable (on = 1, off = 0) will
958 # cause the lpfc driver to use an inverted table, effectively
959 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
961 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
962 # and will not work across a fabric. Also this parameter will take
963 # effect only in the case when ALPA map is not available.)
965 LPFC_ATTR_R(scan_down, 1, 0, 1,
966 "Start scanning for devices from highest ALPA to lowest");
969 # lpfc_topology: link topology for init link
970 # 0x0 = attempt loop mode then point-to-point
971 # 0x01 = internal loopback mode
972 # 0x02 = attempt point-to-point mode only
973 # 0x04 = attempt loop mode only
974 # 0x06 = attempt point-to-point mode then loop
975 # Set point-to-point mode if you want to run as an N_Port.
976 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
977 # Default value is 0.
979 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
982 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
984 # 0 = auto select (default)
988 # Value range is [0,4]. Default value is 0.
990 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
993 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
994 # Value range is [2,3]. Default value is 3.
996 LPFC_ATTR_R(fcp_class, 3, 2, 3,
997 "Select Fibre Channel class of service for FCP sequences");
1000 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
1001 # is [0,1]. Default value is 0.
1003 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
1004 "Use ADISC on rediscovery to authenticate FCP devices");
1007 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1008 # range is [0,1]. Default value is 0.
1010 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
1013 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
1014 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
1015 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
1016 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
1017 # cr_delay is set to 0.
1019 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
1020 "interrupt response is generated");
1022 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
1023 "interrupt response is generated");
1026 # lpfc_multi_ring_support: Determines how many rings to spread available
1027 # cmd/rsp IOCB entries across.
1028 # Value range is [1,2]. Default value is 1.
1030 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
1031 "SLI rings to spread IOCB entries across");
1034 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
1035 # identifies what rctl value to configure the additional ring for.
1036 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
1038 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
1039 255, "Identifies RCTL for additional ring configuration");
1042 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
1043 # identifies what type value to configure the additional ring for.
1044 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
1046 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
1047 255, "Identifies TYPE for additional ring configuration");
1050 # lpfc_fdmi_on: controls FDMI support.
1051 # 0 = no FDMI support
1052 # 1 = support FDMI without attribute of hostname
1053 # 2 = support FDMI with attribute of hostname
1054 # Value range [0,2]. Default value is 0.
1056 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1059 # Specifies the maximum number of ELS cmds we can have outstanding (for
1060 # discovery). Value range is [1,64]. Default value = 32.
1062 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1063 "during discovery");
1066 # lpfc_max_luns: maximum allowed LUN.
1067 # Value range is [0,65535]. Default value is 255.
1068 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1070 LPFC_ATTR_R(max_luns, 255, 0, 65535,
1071 "Maximum allowed LUN");
1074 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1075 # Value range is [1,255], default value is 10.
1077 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1078 "Milliseconds driver will wait between polling FCP ring");
1081 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1082 # support this feature
1083 # 0 = MSI disabled (default)
1085 # Value range is [0,1]. Default value is 0.
1087 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
1090 struct class_device_attribute *lpfc_host_attrs[] = {
1091 &class_device_attr_info,
1092 &class_device_attr_serialnum,
1093 &class_device_attr_modeldesc,
1094 &class_device_attr_modelname,
1095 &class_device_attr_programtype,
1096 &class_device_attr_portnum,
1097 &class_device_attr_fwrev,
1098 &class_device_attr_hdw,
1099 &class_device_attr_option_rom_version,
1100 &class_device_attr_state,
1101 &class_device_attr_num_discovered_ports,
1102 &class_device_attr_lpfc_drvr_version,
1103 &class_device_attr_lpfc_log_verbose,
1104 &class_device_attr_lpfc_lun_queue_depth,
1105 &class_device_attr_lpfc_hba_queue_depth,
1106 &class_device_attr_lpfc_nodev_tmo,
1107 &class_device_attr_lpfc_devloss_tmo,
1108 &class_device_attr_lpfc_fcp_class,
1109 &class_device_attr_lpfc_use_adisc,
1110 &class_device_attr_lpfc_ack0,
1111 &class_device_attr_lpfc_topology,
1112 &class_device_attr_lpfc_scan_down,
1113 &class_device_attr_lpfc_link_speed,
1114 &class_device_attr_lpfc_cr_delay,
1115 &class_device_attr_lpfc_cr_count,
1116 &class_device_attr_lpfc_multi_ring_support,
1117 &class_device_attr_lpfc_multi_ring_rctl,
1118 &class_device_attr_lpfc_multi_ring_type,
1119 &class_device_attr_lpfc_fdmi_on,
1120 &class_device_attr_lpfc_max_luns,
1121 &class_device_attr_nport_evt_cnt,
1122 &class_device_attr_management_version,
1123 &class_device_attr_board_mode,
1124 &class_device_attr_issue_reset,
1125 &class_device_attr_lpfc_poll,
1126 &class_device_attr_lpfc_poll_tmo,
1127 &class_device_attr_lpfc_use_msi,
1128 &class_device_attr_lpfc_soft_wwnn,
1129 &class_device_attr_lpfc_soft_wwpn,
1130 &class_device_attr_lpfc_soft_wwn_enable,
1135 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
1138 struct Scsi_Host *host = class_to_shost(container_of(kobj,
1139 struct class_device, kobj));
1140 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1142 if ((off + count) > FF_REG_AREA_SIZE)
1145 if (count == 0) return 0;
1147 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1150 spin_lock_irq(phba->host->host_lock);
1152 if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
1153 spin_unlock_irq(phba->host->host_lock);
1157 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1158 writel(*((uint32_t *)(buf + buf_off)),
1159 phba->ctrl_regs_memmap_p + off + buf_off);
1161 spin_unlock_irq(phba->host->host_lock);
1167 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
1171 struct Scsi_Host *host = class_to_shost(container_of(kobj,
1172 struct class_device, kobj));
1173 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1175 if (off > FF_REG_AREA_SIZE)
1178 if ((off + count) > FF_REG_AREA_SIZE)
1179 count = FF_REG_AREA_SIZE - off;
1181 if (count == 0) return 0;
1183 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1186 spin_lock_irq(phba->host->host_lock);
1188 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1189 tmp_ptr = (uint32_t *)(buf + buf_off);
1190 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1193 spin_unlock_irq(phba->host->host_lock);
1198 static struct bin_attribute sysfs_ctlreg_attr = {
1201 .mode = S_IRUSR | S_IWUSR,
1202 .owner = THIS_MODULE,
1205 .read = sysfs_ctlreg_read,
1206 .write = sysfs_ctlreg_write,
1211 sysfs_mbox_idle (struct lpfc_hba * phba)
1213 phba->sysfs_mbox.state = SMBOX_IDLE;
1214 phba->sysfs_mbox.offset = 0;
1216 if (phba->sysfs_mbox.mbox) {
1217 mempool_free(phba->sysfs_mbox.mbox,
1218 phba->mbox_mem_pool);
1219 phba->sysfs_mbox.mbox = NULL;
1224 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
1226 struct Scsi_Host * host =
1227 class_to_shost(container_of(kobj, struct class_device, kobj));
1228 struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata;
1229 struct lpfcMboxq * mbox = NULL;
1231 if ((count + off) > MAILBOX_CMD_SIZE)
1234 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1241 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1244 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1247 spin_lock_irq(host->host_lock);
1250 if (phba->sysfs_mbox.mbox)
1251 mempool_free(mbox, phba->mbox_mem_pool);
1253 phba->sysfs_mbox.mbox = mbox;
1254 phba->sysfs_mbox.state = SMBOX_WRITING;
1256 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
1257 phba->sysfs_mbox.offset != off ||
1258 phba->sysfs_mbox.mbox == NULL ) {
1259 sysfs_mbox_idle(phba);
1260 spin_unlock_irq(host->host_lock);
1265 memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1268 phba->sysfs_mbox.offset = off + count;
1270 spin_unlock_irq(host->host_lock);
1276 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
1278 struct Scsi_Host *host =
1279 class_to_shost(container_of(kobj, struct class_device,
1281 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
1284 if (off > MAILBOX_CMD_SIZE)
1287 if ((count + off) > MAILBOX_CMD_SIZE)
1288 count = MAILBOX_CMD_SIZE - off;
1290 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1293 if (off && count == 0)
1296 spin_lock_irq(phba->host->host_lock);
1299 phba->sysfs_mbox.state == SMBOX_WRITING &&
1300 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1302 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1307 case MBX_CONFIG_LINK:
1308 case MBX_CONFIG_RING:
1309 case MBX_RESET_RING:
1310 case MBX_UNREG_LOGIN:
1312 case MBX_DUMP_CONTEXT:
1315 case MBX_FLASH_WR_ULA:
1319 if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
1320 printk(KERN_WARNING "mbox_read:Command 0x%x "
1321 "is illegal in on-line state\n",
1322 phba->sysfs_mbox.mbox->mb.mbxCommand);
1323 sysfs_mbox_idle(phba);
1324 spin_unlock_irq(phba->host->host_lock);
1329 case MBX_READ_CONFIG:
1330 case MBX_READ_RCONFIG:
1331 case MBX_READ_STATUS:
1334 case MBX_READ_LNK_STAT:
1335 case MBX_DUMP_MEMORY:
1337 case MBX_UPDATE_CFG:
1338 case MBX_KILL_BOARD:
1340 case MBX_LOAD_EXP_ROM:
1342 case MBX_DEL_LD_ENTRY:
1344 case MBX_READ_SPARM64:
1348 case MBX_REG_LOGIN64:
1349 case MBX_CONFIG_PORT:
1350 case MBX_RUN_BIU_DIAG:
1351 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1352 phba->sysfs_mbox.mbox->mb.mbxCommand);
1353 sysfs_mbox_idle(phba);
1354 spin_unlock_irq(phba->host->host_lock);
1357 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1358 phba->sysfs_mbox.mbox->mb.mbxCommand);
1359 sysfs_mbox_idle(phba);
1360 spin_unlock_irq(phba->host->host_lock);
1364 if (phba->fc_flag & FC_BLOCK_MGMT_IO) {
1365 sysfs_mbox_idle(phba);
1366 spin_unlock_irq(host->host_lock);
1370 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1371 (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1373 spin_unlock_irq(phba->host->host_lock);
1374 rc = lpfc_sli_issue_mbox (phba,
1375 phba->sysfs_mbox.mbox,
1377 spin_lock_irq(phba->host->host_lock);
1380 spin_unlock_irq(phba->host->host_lock);
1381 rc = lpfc_sli_issue_mbox_wait (phba,
1382 phba->sysfs_mbox.mbox,
1383 lpfc_mbox_tmo_val(phba,
1384 phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1385 spin_lock_irq(phba->host->host_lock);
1388 if (rc != MBX_SUCCESS) {
1389 if (rc == MBX_TIMEOUT) {
1390 phba->sysfs_mbox.mbox->mbox_cmpl =
1391 lpfc_sli_def_mbox_cmpl;
1392 phba->sysfs_mbox.mbox = NULL;
1394 sysfs_mbox_idle(phba);
1395 spin_unlock_irq(host->host_lock);
1396 return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1398 phba->sysfs_mbox.state = SMBOX_READING;
1400 else if (phba->sysfs_mbox.offset != off ||
1401 phba->sysfs_mbox.state != SMBOX_READING) {
1402 printk(KERN_WARNING "mbox_read: Bad State\n");
1403 sysfs_mbox_idle(phba);
1404 spin_unlock_irq(host->host_lock);
1408 memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1410 phba->sysfs_mbox.offset = off + count;
1412 if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
1413 sysfs_mbox_idle(phba);
1415 spin_unlock_irq(phba->host->host_lock);
1420 static struct bin_attribute sysfs_mbox_attr = {
1423 .mode = S_IRUSR | S_IWUSR,
1424 .owner = THIS_MODULE,
1426 .size = MAILBOX_CMD_SIZE,
1427 .read = sysfs_mbox_read,
1428 .write = sysfs_mbox_write,
1432 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
1434 struct Scsi_Host *host = phba->host;
1437 error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1438 &sysfs_ctlreg_attr);
1442 error = sysfs_create_bin_file(&host->shost_classdev.kobj,
1445 goto out_remove_ctlreg_attr;
1448 out_remove_ctlreg_attr:
1449 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1455 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
1457 struct Scsi_Host *host = phba->host;
1459 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
1460 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
1465 * Dynamic FC Host Attributes Support
1469 lpfc_get_host_port_id(struct Scsi_Host *shost)
1471 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1472 /* note: fc_myDID already in cpu endianness */
1473 fc_host_port_id(shost) = phba->fc_myDID;
1477 lpfc_get_host_port_type(struct Scsi_Host *shost)
1479 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1481 spin_lock_irq(shost->host_lock);
1483 if (phba->hba_state == LPFC_HBA_READY) {
1484 if (phba->fc_topology == TOPOLOGY_LOOP) {
1485 if (phba->fc_flag & FC_PUBLIC_LOOP)
1486 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1488 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1490 if (phba->fc_flag & FC_FABRIC)
1491 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1493 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1496 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1498 spin_unlock_irq(shost->host_lock);
1502 lpfc_get_host_port_state(struct Scsi_Host *shost)
1504 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1506 spin_lock_irq(shost->host_lock);
1508 if (phba->fc_flag & FC_OFFLINE_MODE)
1509 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1511 switch (phba->hba_state) {
1512 case LPFC_STATE_UNKNOWN:
1513 case LPFC_WARM_START:
1514 case LPFC_INIT_START:
1515 case LPFC_INIT_MBX_CMDS:
1516 case LPFC_LINK_DOWN:
1517 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1520 case LPFC_LOCAL_CFG_LINK:
1522 case LPFC_FABRIC_CFG_LINK:
1525 case LPFC_BUILD_DISC_LIST:
1526 case LPFC_DISC_AUTH:
1528 case LPFC_HBA_READY:
1529 /* Links up, beyond this port_type reports state */
1530 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1532 case LPFC_HBA_ERROR:
1533 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1536 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1541 spin_unlock_irq(shost->host_lock);
1545 lpfc_get_host_speed(struct Scsi_Host *shost)
1547 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1549 spin_lock_irq(shost->host_lock);
1551 if (phba->hba_state == LPFC_HBA_READY) {
1552 switch(phba->fc_linkspeed) {
1554 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1557 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1560 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1563 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1568 spin_unlock_irq(shost->host_lock);
1572 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1574 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1577 spin_lock_irq(shost->host_lock);
1579 if ((phba->fc_flag & FC_FABRIC) ||
1580 ((phba->fc_topology == TOPOLOGY_LOOP) &&
1581 (phba->fc_flag & FC_PUBLIC_LOOP)))
1582 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1584 /* fabric is local port if there is no F/FL_Port */
1585 node_name = wwn_to_u64(phba->fc_nodename.u.wwn);
1587 spin_unlock_irq(shost->host_lock);
1589 fc_host_fabric_name(shost) = node_name;
1593 lpfc_get_host_symbolic_name (struct Scsi_Host *shost)
1595 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
1597 spin_lock_irq(shost->host_lock);
1598 lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(shost));
1599 spin_unlock_irq(shost->host_lock);
1602 static struct fc_host_statistics *
1603 lpfc_get_stats(struct Scsi_Host *shost)
1605 struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1606 struct lpfc_sli *psli = &phba->sli;
1607 struct fc_host_statistics *hs = &phba->link_stats;
1608 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1609 LPFC_MBOXQ_t *pmboxq;
1611 unsigned long seconds;
1614 if (phba->fc_flag & FC_BLOCK_MGMT_IO)
1617 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1620 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1623 pmb->mbxCommand = MBX_READ_STATUS;
1624 pmb->mbxOwner = OWN_HOST;
1625 pmboxq->context1 = NULL;
1627 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1628 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1629 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1631 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1633 if (rc != MBX_SUCCESS) {
1634 if (rc == MBX_TIMEOUT)
1635 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1637 mempool_free(pmboxq, phba->mbox_mem_pool);
1641 memset(hs, 0, sizeof (struct fc_host_statistics));
1643 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1644 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1645 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1646 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1648 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1649 pmb->mbxCommand = MBX_READ_LNK_STAT;
1650 pmb->mbxOwner = OWN_HOST;
1651 pmboxq->context1 = NULL;
1653 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1654 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1655 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1657 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1659 if (rc != MBX_SUCCESS) {
1660 if (rc == MBX_TIMEOUT)
1661 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1663 mempool_free( pmboxq, phba->mbox_mem_pool);
1667 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1668 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1669 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1670 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1671 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1672 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1673 hs->error_frames = pmb->un.varRdLnk.crcCnt;
1675 hs->link_failure_count -= lso->link_failure_count;
1676 hs->loss_of_sync_count -= lso->loss_of_sync_count;
1677 hs->loss_of_signal_count -= lso->loss_of_signal_count;
1678 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
1679 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
1680 hs->invalid_crc_count -= lso->invalid_crc_count;
1681 hs->error_frames -= lso->error_frames;
1683 if (phba->fc_topology == TOPOLOGY_LOOP) {
1684 hs->lip_count = (phba->fc_eventTag >> 1);
1685 hs->lip_count -= lso->link_events;
1689 hs->nos_count = (phba->fc_eventTag >> 1);
1690 hs->nos_count -= lso->link_events;
1693 hs->dumped_frames = -1;
1695 seconds = get_seconds();
1696 if (seconds < psli->stats_start)
1697 hs->seconds_since_last_reset = seconds +
1698 ((unsigned long)-1 - psli->stats_start);
1700 hs->seconds_since_last_reset = seconds - psli->stats_start;
1702 mempool_free(pmboxq, phba->mbox_mem_pool);
1708 lpfc_reset_stats(struct Scsi_Host *shost)
1710 struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
1711 struct lpfc_sli *psli = &phba->sli;
1712 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1713 LPFC_MBOXQ_t *pmboxq;
1717 if (phba->fc_flag & FC_BLOCK_MGMT_IO)
1720 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1723 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1726 pmb->mbxCommand = MBX_READ_STATUS;
1727 pmb->mbxOwner = OWN_HOST;
1728 pmb->un.varWords[0] = 0x1; /* reset request */
1729 pmboxq->context1 = NULL;
1731 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1732 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1733 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1735 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1737 if (rc != MBX_SUCCESS) {
1738 if (rc == MBX_TIMEOUT)
1739 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1741 mempool_free(pmboxq, phba->mbox_mem_pool);
1745 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
1746 pmb->mbxCommand = MBX_READ_LNK_STAT;
1747 pmb->mbxOwner = OWN_HOST;
1748 pmboxq->context1 = NULL;
1750 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1751 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1752 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1754 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1756 if (rc != MBX_SUCCESS) {
1757 if (rc == MBX_TIMEOUT)
1758 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1760 mempool_free( pmboxq, phba->mbox_mem_pool);
1764 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1765 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1766 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1767 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1768 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1769 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1770 lso->error_frames = pmb->un.varRdLnk.crcCnt;
1771 lso->link_events = (phba->fc_eventTag >> 1);
1773 psli->stats_start = get_seconds();
1775 mempool_free(pmboxq, phba->mbox_mem_pool);
1781 * The LPFC driver treats linkdown handling as target loss events so there
1782 * are no sysfs handlers for link_down_tmo.
1785 lpfc_get_starget_port_id(struct scsi_target *starget)
1787 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1788 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1790 struct lpfc_nodelist *ndlp = NULL;
1792 spin_lock_irq(shost->host_lock);
1793 /* Search the mapped list for this target ID */
1794 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1795 if (starget->id == ndlp->nlp_sid) {
1796 did = ndlp->nlp_DID;
1800 spin_unlock_irq(shost->host_lock);
1802 fc_starget_port_id(starget) = did;
1806 lpfc_get_starget_node_name(struct scsi_target *starget)
1808 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1809 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1811 struct lpfc_nodelist *ndlp = NULL;
1813 spin_lock_irq(shost->host_lock);
1814 /* Search the mapped list for this target ID */
1815 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1816 if (starget->id == ndlp->nlp_sid) {
1817 node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
1821 spin_unlock_irq(shost->host_lock);
1823 fc_starget_node_name(starget) = node_name;
1827 lpfc_get_starget_port_name(struct scsi_target *starget)
1829 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1830 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata;
1832 struct lpfc_nodelist *ndlp = NULL;
1834 spin_lock_irq(shost->host_lock);
1835 /* Search the mapped list for this target ID */
1836 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1837 if (starget->id == ndlp->nlp_sid) {
1838 port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
1842 spin_unlock_irq(shost->host_lock);
1844 fc_starget_port_name(starget) = port_name;
1848 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1851 rport->dev_loss_tmo = timeout;
1853 rport->dev_loss_tmo = 1;
1857 #define lpfc_rport_show_function(field, format_string, sz, cast) \
1859 lpfc_show_rport_##field (struct class_device *cdev, char *buf) \
1861 struct fc_rport *rport = transport_class_to_rport(cdev); \
1862 struct lpfc_rport_data *rdata = rport->hostdata; \
1863 return snprintf(buf, sz, format_string, \
1864 (rdata->target) ? cast rdata->target->field : 0); \
1867 #define lpfc_rport_rd_attr(field, format_string, sz) \
1868 lpfc_rport_show_function(field, format_string, sz, ) \
1869 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1872 struct fc_function_template lpfc_transport_functions = {
1873 /* fixed attributes the driver supports */
1874 .show_host_node_name = 1,
1875 .show_host_port_name = 1,
1876 .show_host_supported_classes = 1,
1877 .show_host_supported_fc4s = 1,
1878 .show_host_supported_speeds = 1,
1879 .show_host_maxframe_size = 1,
1881 /* dynamic attributes the driver supports */
1882 .get_host_port_id = lpfc_get_host_port_id,
1883 .show_host_port_id = 1,
1885 .get_host_port_type = lpfc_get_host_port_type,
1886 .show_host_port_type = 1,
1888 .get_host_port_state = lpfc_get_host_port_state,
1889 .show_host_port_state = 1,
1891 /* active_fc4s is shown but doesn't change (thus no get function) */
1892 .show_host_active_fc4s = 1,
1894 .get_host_speed = lpfc_get_host_speed,
1895 .show_host_speed = 1,
1897 .get_host_fabric_name = lpfc_get_host_fabric_name,
1898 .show_host_fabric_name = 1,
1900 .get_host_symbolic_name = lpfc_get_host_symbolic_name,
1901 .show_host_symbolic_name = 1,
1904 * The LPFC driver treats linkdown handling as target loss events
1905 * so there are no sysfs handlers for link_down_tmo.
1908 .get_fc_host_stats = lpfc_get_stats,
1909 .reset_fc_host_stats = lpfc_reset_stats,
1911 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1912 .show_rport_maxframe_size = 1,
1913 .show_rport_supported_classes = 1,
1915 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1916 .show_rport_dev_loss_tmo = 1,
1918 .get_starget_port_id = lpfc_get_starget_port_id,
1919 .show_starget_port_id = 1,
1921 .get_starget_node_name = lpfc_get_starget_node_name,
1922 .show_starget_node_name = 1,
1924 .get_starget_port_name = lpfc_get_starget_port_name,
1925 .show_starget_port_name = 1,
1927 .issue_fc_host_lip = lpfc_issue_lip,
1928 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
1929 .terminate_rport_io = lpfc_terminate_rport_io,
1933 lpfc_get_cfgparam(struct lpfc_hba *phba)
1935 lpfc_log_verbose_init(phba, lpfc_log_verbose);
1936 lpfc_cr_delay_init(phba, lpfc_cr_delay);
1937 lpfc_cr_count_init(phba, lpfc_cr_count);
1938 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
1939 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
1940 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
1941 lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
1942 lpfc_fcp_class_init(phba, lpfc_fcp_class);
1943 lpfc_use_adisc_init(phba, lpfc_use_adisc);
1944 lpfc_ack0_init(phba, lpfc_ack0);
1945 lpfc_topology_init(phba, lpfc_topology);
1946 lpfc_scan_down_init(phba, lpfc_scan_down);
1947 lpfc_link_speed_init(phba, lpfc_link_speed);
1948 lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
1949 lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
1950 lpfc_max_luns_init(phba, lpfc_max_luns);
1951 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
1952 lpfc_use_msi_init(phba, lpfc_use_msi);
1953 lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
1954 lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
1955 phba->cfg_poll = lpfc_poll;
1956 phba->cfg_soft_wwnn = 0L;
1957 phba->cfg_soft_wwpn = 0L;
1960 * The total number of segments is the configuration value plus 2
1961 * since the IOCB need a command and response bde.
1963 phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1966 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1967 * used to create the sg_dma_buf_pool must be dynamically calculated
1969 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1970 sizeof(struct fcp_rsp) +
1971 (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1974 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);