1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2005 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/pci.h>
24 #include <linux/interrupt.h>
26 #include <scsi/scsi_device.h>
27 #include <scsi/scsi_host.h>
28 #include <scsi/scsi_tcq.h>
29 #include <scsi/scsi_transport_fc.h>
33 #include "lpfc_disc.h"
34 #include "lpfc_scsi.h"
36 #include "lpfc_logmsg.h"
37 #include "lpfc_version.h"
38 #include "lpfc_compat.h"
39 #include "lpfc_crtn.h"
43 lpfc_jedec_to_ascii(int incr, char hdw[])
46 for (i = 0; i < 8; i++) {
49 hdw[7 - i] = 0x30 + j;
51 hdw[7 - i] = 0x61 + j - 10;
59 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
61 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
65 management_version_show(struct class_device *cdev, char *buf)
67 return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
71 lpfc_info_show(struct class_device *cdev, char *buf)
73 struct Scsi_Host *host = class_to_shost(cdev);
74 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
78 lpfc_serialnum_show(struct class_device *cdev, char *buf)
80 struct Scsi_Host *host = class_to_shost(cdev);
81 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
82 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
86 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
88 struct Scsi_Host *host = class_to_shost(cdev);
89 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
90 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
94 lpfc_modelname_show(struct class_device *cdev, char *buf)
96 struct Scsi_Host *host = class_to_shost(cdev);
97 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
98 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
102 lpfc_programtype_show(struct class_device *cdev, char *buf)
104 struct Scsi_Host *host = class_to_shost(cdev);
105 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
106 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
110 lpfc_portnum_show(struct class_device *cdev, char *buf)
112 struct Scsi_Host *host = class_to_shost(cdev);
113 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
114 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
118 lpfc_fwrev_show(struct class_device *cdev, char *buf)
120 struct Scsi_Host *host = class_to_shost(cdev);
121 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
123 lpfc_decode_firmware_rev(phba, fwrev, 1);
124 return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
128 lpfc_hdw_show(struct class_device *cdev, char *buf)
131 struct Scsi_Host *host = class_to_shost(cdev);
132 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
133 lpfc_vpd_t *vp = &phba->vpd;
134 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
135 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
138 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
140 struct Scsi_Host *host = class_to_shost(cdev);
141 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
142 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
145 lpfc_state_show(struct class_device *cdev, char *buf)
147 struct Scsi_Host *host = class_to_shost(cdev);
148 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
150 switch (phba->hba_state) {
151 case LPFC_INIT_START:
152 case LPFC_INIT_MBX_CMDS:
154 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
157 case LPFC_LOCAL_CFG_LINK:
158 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n");
161 case LPFC_FABRIC_CFG_LINK:
164 case LPFC_BUILD_DISC_LIST:
167 len += snprintf(buf + len, PAGE_SIZE-len,
168 "Link Up - Discovery\n");
171 len += snprintf(buf + len, PAGE_SIZE-len,
172 "Link Up - Ready:\n");
173 if (phba->fc_topology == TOPOLOGY_LOOP) {
174 if (phba->fc_flag & FC_PUBLIC_LOOP)
175 len += snprintf(buf + len, PAGE_SIZE-len,
178 len += snprintf(buf + len, PAGE_SIZE-len,
181 if (phba->fc_flag & FC_FABRIC)
182 len += snprintf(buf + len, PAGE_SIZE-len,
185 len += snprintf(buf + len, PAGE_SIZE-len,
193 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
195 struct Scsi_Host *host = class_to_shost(cdev);
196 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
197 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt +
203 lpfc_issue_lip (struct class_device *cdev, const char *buf, size_t count)
205 struct Scsi_Host *host = class_to_shost(cdev);
206 struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata[0];
208 LPFC_MBOXQ_t *pmboxq;
209 int mbxstatus = MBXERR_ERROR;
211 if ((sscanf(buf, "%d", &val) != 1) ||
215 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
216 (phba->hba_state != LPFC_HBA_READY))
219 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
224 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
225 lpfc_init_link(phba, pmboxq, phba->cfg_topology, phba->cfg_link_speed);
226 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
228 if (mbxstatus == MBX_TIMEOUT)
229 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
231 mempool_free( pmboxq, phba->mbox_mem_pool);
233 if (mbxstatus == MBXERR_ERROR)
240 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
242 struct Scsi_Host *host = class_to_shost(cdev);
243 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
244 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
248 lpfc_board_online_show(struct class_device *cdev, char *buf)
250 struct Scsi_Host *host = class_to_shost(cdev);
251 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
255 if (phba->fc_flag & FC_OFFLINE_MODE)
256 return snprintf(buf, PAGE_SIZE, "0\n");
258 return snprintf(buf, PAGE_SIZE, "1\n");
262 lpfc_board_online_store(struct class_device *cdev, const char *buf,
265 struct Scsi_Host *host = class_to_shost(cdev);
266 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
267 struct completion online_compl;
270 if (sscanf(buf, "%d", &val) != 1)
273 init_completion(&online_compl);
276 lpfc_workq_post_event(phba, &status, &online_compl,
279 lpfc_workq_post_event(phba, &status, &online_compl,
281 wait_for_completion(&online_compl);
289 #define lpfc_param_show(attr) \
291 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
293 struct Scsi_Host *host = class_to_shost(cdev);\
294 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
297 val = phba->cfg_##attr;\
298 return snprintf(buf, PAGE_SIZE, "%d\n",\
304 #define lpfc_param_store(attr, minval, maxval) \
306 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
308 struct Scsi_Host *host = class_to_shost(cdev);\
309 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\
311 if (!isdigit(buf[0]))\
313 if (sscanf(buf, "0x%x", &val) != 1)\
314 if (sscanf(buf, "%d", &val) != 1)\
317 if (val >= minval && val <= maxval) {\
318 phba->cfg_##attr = val;\
325 #define LPFC_ATTR_R_NOINIT(name, desc) \
326 extern int lpfc_##name;\
327 module_param(lpfc_##name, int, 0);\
328 MODULE_PARM_DESC(lpfc_##name, desc);\
329 lpfc_param_show(name)\
330 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
332 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
333 static int lpfc_##name = defval;\
334 module_param(lpfc_##name, int, 0);\
335 MODULE_PARM_DESC(lpfc_##name, desc);\
336 lpfc_param_show(name)\
337 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
339 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
340 static int lpfc_##name = defval;\
341 module_param(lpfc_##name, int, 0);\
342 MODULE_PARM_DESC(lpfc_##name, desc);\
343 lpfc_param_show(name)\
344 lpfc_param_store(name, minval, maxval)\
345 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
346 lpfc_##name##_show, lpfc_##name##_store)
348 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
349 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
350 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
351 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
352 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
353 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL);
354 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
355 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
356 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
357 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
358 lpfc_option_rom_version_show, NULL);
359 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
360 lpfc_num_discovered_ports_show, NULL);
361 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
362 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
364 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
366 static CLASS_DEVICE_ATTR(issue_lip, S_IWUSR, NULL, lpfc_issue_lip);
367 static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
368 lpfc_board_online_show, lpfc_board_online_store);
372 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
373 # deluged with LOTS of information.
374 # You can set a bit mask to record specific types of verbose messages:
376 # LOG_ELS 0x1 ELS events
377 # LOG_DISCOVERY 0x2 Link discovery events
378 # LOG_MBOX 0x4 Mailbox events
379 # LOG_INIT 0x8 Initialization events
380 # LOG_LINK_EVENT 0x10 Link events
381 # LOG_IP 0x20 IP traffic history
382 # LOG_FCP 0x40 FCP traffic history
383 # LOG_NODE 0x80 Node table events
384 # LOG_MISC 0x400 Miscellaneous events
385 # LOG_SLI 0x800 SLI events
386 # LOG_CHK_COND 0x1000 FCP Check condition flag
387 # LOG_LIBDFC 0x2000 LIBDFC events
388 # LOG_ALL_MSG 0xffff LOG all messages
390 LPFC_ATTR_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
393 # lun_queue_depth: This parameter is used to limit the number of outstanding
394 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
396 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
397 "Max number of FCP commands we can queue to a specific LUN");
400 # Some disk devices have a "select ID" or "select Target" capability.
401 # From a protocol standpoint "select ID" usually means select the
402 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
403 # annex" which contains a table that maps a "select ID" (a number
404 # between 0 and 7F) to an ALPA. By default, for compatibility with
405 # older drivers, the lpfc driver scans this table from low ALPA to high
408 # Turning on the scan-down variable (on = 1, off = 0) will
409 # cause the lpfc driver to use an inverted table, effectively
410 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
412 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
413 # and will not work across a fabric. Also this parameter will take
414 # effect only in the case when ALPA map is not available.)
416 LPFC_ATTR_R(scan_down, 1, 0, 1,
417 "Start scanning for devices from highest ALPA to lowest");
420 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
421 # until the timer expires. Value range is [0,255]. Default value is 20.
422 # NOTE: this MUST be less then the SCSI Layer command timeout - 1.
424 LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
425 "Seconds driver will hold I/O waiting for a device to come back");
428 # lpfc_topology: link topology for init link
429 # 0x0 = attempt loop mode then point-to-point
430 # 0x02 = attempt point-to-point mode only
431 # 0x04 = attempt loop mode only
432 # 0x06 = attempt point-to-point mode then loop
433 # Set point-to-point mode if you want to run as an N_Port.
434 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
435 # Default value is 0.
437 LPFC_ATTR_R(topology, 0, 0, 6, "Select Fibre Channel topology");
440 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
442 # 0 = auto select (default)
446 # Value range is [0,4]. Default value is 0.
448 LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed");
451 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
452 # Value range is [2,3]. Default value is 3.
454 LPFC_ATTR_R(fcp_class, 3, 2, 3,
455 "Select Fibre Channel class of service for FCP sequences");
458 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
459 # is [0,1]. Default value is 0.
461 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
462 "Use ADISC on rediscovery to authenticate FCP devices");
465 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
466 # range is [0,1]. Default value is 0.
468 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
471 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
472 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
473 # value [0,63]. cr_count can take value [0,255]. Default value of cr_delay
474 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
475 # cr_delay is set to 0.
477 static int lpfc_cr_delay = 0;
478 module_param(lpfc_cr_delay, int , 0);
479 MODULE_PARM_DESC(lpfc_cr_delay, "A count of milliseconds after which an "
480 "interrupt response is generated");
482 static int lpfc_cr_count = 1;
483 module_param(lpfc_cr_count, int, 0);
484 MODULE_PARM_DESC(lpfc_cr_count, "A count of I/O completions after which an "
485 "interrupt response is generated");
488 # lpfc_fdmi_on: controls FDMI support.
489 # 0 = no FDMI support
490 # 1 = support FDMI without attribute of hostname
491 # 2 = support FDMI with attribute of hostname
492 # Value range [0,2]. Default value is 0.
494 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
497 # Specifies the maximum number of ELS cmds we can have outstanding (for
498 # discovery). Value range is [1,64]. Default value = 32.
500 static int lpfc_discovery_threads = 32;
501 module_param(lpfc_discovery_threads, int, 0);
502 MODULE_PARM_DESC(lpfc_discovery_threads, "Maximum number of ELS commands "
506 # lpfc_max_luns: maximum number of LUNs per target driver will support
507 # Value range is [1,32768]. Default value is 256.
508 # NOTE: The SCSI layer will scan each target for this many luns
510 LPFC_ATTR_R(max_luns, 256, 1, 32768,
511 "Maximum number of LUNs per target driver will support");
513 struct class_device_attribute *lpfc_host_attrs[] = {
514 &class_device_attr_info,
515 &class_device_attr_serialnum,
516 &class_device_attr_modeldesc,
517 &class_device_attr_modelname,
518 &class_device_attr_programtype,
519 &class_device_attr_portnum,
520 &class_device_attr_fwrev,
521 &class_device_attr_hdw,
522 &class_device_attr_option_rom_version,
523 &class_device_attr_state,
524 &class_device_attr_num_discovered_ports,
525 &class_device_attr_lpfc_drvr_version,
526 &class_device_attr_lpfc_log_verbose,
527 &class_device_attr_lpfc_lun_queue_depth,
528 &class_device_attr_lpfc_nodev_tmo,
529 &class_device_attr_lpfc_fcp_class,
530 &class_device_attr_lpfc_use_adisc,
531 &class_device_attr_lpfc_ack0,
532 &class_device_attr_lpfc_topology,
533 &class_device_attr_lpfc_scan_down,
534 &class_device_attr_lpfc_link_speed,
535 &class_device_attr_lpfc_fdmi_on,
536 &class_device_attr_lpfc_max_luns,
537 &class_device_attr_nport_evt_cnt,
538 &class_device_attr_management_version,
539 &class_device_attr_issue_lip,
540 &class_device_attr_board_online,
545 sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
548 struct Scsi_Host *host = class_to_shost(container_of(kobj,
549 struct class_device, kobj));
550 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
552 if ((off + count) > FF_REG_AREA_SIZE)
555 if (count == 0) return 0;
557 if (off % 4 || count % 4 || (unsigned long)buf % 4)
560 spin_lock_irq(phba->host->host_lock);
562 if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
563 spin_unlock_irq(phba->host->host_lock);
567 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
568 writel(*((uint32_t *)(buf + buf_off)),
569 phba->ctrl_regs_memmap_p + off + buf_off);
571 spin_unlock_irq(phba->host->host_lock);
577 sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
581 struct Scsi_Host *host = class_to_shost(container_of(kobj,
582 struct class_device, kobj));
583 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
585 if (off > FF_REG_AREA_SIZE)
588 if ((off + count) > FF_REG_AREA_SIZE)
589 count = FF_REG_AREA_SIZE - off;
591 if (count == 0) return 0;
593 if (off % 4 || count % 4 || (unsigned long)buf % 4)
596 spin_lock_irq(phba->host->host_lock);
598 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
599 tmp_ptr = (uint32_t *)(buf + buf_off);
600 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
603 spin_unlock_irq(phba->host->host_lock);
608 static struct bin_attribute sysfs_ctlreg_attr = {
611 .mode = S_IRUSR | S_IWUSR,
612 .owner = THIS_MODULE,
615 .read = sysfs_ctlreg_read,
616 .write = sysfs_ctlreg_write,
621 sysfs_mbox_idle (struct lpfc_hba * phba)
623 phba->sysfs_mbox.state = SMBOX_IDLE;
624 phba->sysfs_mbox.offset = 0;
626 if (phba->sysfs_mbox.mbox) {
627 mempool_free(phba->sysfs_mbox.mbox,
628 phba->mbox_mem_pool);
629 phba->sysfs_mbox.mbox = NULL;
634 sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
636 struct Scsi_Host * host =
637 class_to_shost(container_of(kobj, struct class_device, kobj));
638 struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata[0];
639 struct lpfcMboxq * mbox = NULL;
641 if ((count + off) > MAILBOX_CMD_SIZE)
644 if (off % 4 || count % 4 || (unsigned long)buf % 4)
651 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
657 spin_lock_irq(host->host_lock);
660 if (phba->sysfs_mbox.mbox)
661 mempool_free(mbox, phba->mbox_mem_pool);
663 phba->sysfs_mbox.mbox = mbox;
664 phba->sysfs_mbox.state = SMBOX_WRITING;
666 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
667 phba->sysfs_mbox.offset != off ||
668 phba->sysfs_mbox.mbox == NULL ) {
669 sysfs_mbox_idle(phba);
670 spin_unlock_irq(host->host_lock);
675 memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
678 phba->sysfs_mbox.offset = off + count;
680 spin_unlock_irq(host->host_lock);
686 sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
688 struct Scsi_Host *host =
689 class_to_shost(container_of(kobj, struct class_device,
691 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
694 if (off > sizeof(MAILBOX_t))
697 if ((count + off) > sizeof(MAILBOX_t))
698 count = sizeof(MAILBOX_t) - off;
700 if (off % 4 || count % 4 || (unsigned long)buf % 4)
703 if (off && count == 0)
706 spin_lock_irq(phba->host->host_lock);
709 phba->sysfs_mbox.state == SMBOX_WRITING &&
710 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
712 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
717 case MBX_CONFIG_LINK:
718 case MBX_CONFIG_RING:
720 case MBX_UNREG_LOGIN:
722 case MBX_DUMP_CONTEXT:
725 case MBX_FLASH_WR_ULA:
729 if (!(phba->fc_flag & FC_OFFLINE_MODE)) {
730 printk(KERN_WARNING "mbox_read:Command 0x%x "
731 "is illegal in on-line state\n",
732 phba->sysfs_mbox.mbox->mb.mbxCommand);
733 sysfs_mbox_idle(phba);
734 spin_unlock_irq(phba->host->host_lock);
739 case MBX_READ_CONFIG:
740 case MBX_READ_RCONFIG:
741 case MBX_READ_STATUS:
744 case MBX_READ_LNK_STAT:
745 case MBX_DUMP_MEMORY:
749 case MBX_LOAD_EXP_ROM:
751 case MBX_READ_SPARM64:
755 case MBX_REG_LOGIN64:
756 case MBX_CONFIG_PORT:
757 case MBX_RUN_BIU_DIAG:
758 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
759 phba->sysfs_mbox.mbox->mb.mbxCommand);
760 sysfs_mbox_idle(phba);
761 spin_unlock_irq(phba->host->host_lock);
764 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
765 phba->sysfs_mbox.mbox->mb.mbxCommand);
766 sysfs_mbox_idle(phba);
767 spin_unlock_irq(phba->host->host_lock);
771 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
772 (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
774 spin_unlock_irq(phba->host->host_lock);
775 rc = lpfc_sli_issue_mbox (phba,
776 phba->sysfs_mbox.mbox,
778 spin_lock_irq(phba->host->host_lock);
781 spin_unlock_irq(phba->host->host_lock);
782 rc = lpfc_sli_issue_mbox_wait (phba,
783 phba->sysfs_mbox.mbox,
785 spin_lock_irq(phba->host->host_lock);
788 if (rc != MBX_SUCCESS) {
789 sysfs_mbox_idle(phba);
790 spin_unlock_irq(host->host_lock);
793 phba->sysfs_mbox.state = SMBOX_READING;
795 else if (phba->sysfs_mbox.offset != off ||
796 phba->sysfs_mbox.state != SMBOX_READING) {
797 printk(KERN_WARNING "mbox_read: Bad State\n");
798 sysfs_mbox_idle(phba);
799 spin_unlock_irq(host->host_lock);
803 memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
805 phba->sysfs_mbox.offset = off + count;
807 if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t))
808 sysfs_mbox_idle(phba);
810 spin_unlock_irq(phba->host->host_lock);
815 static struct bin_attribute sysfs_mbox_attr = {
818 .mode = S_IRUSR | S_IWUSR,
819 .owner = THIS_MODULE,
821 .size = sizeof(MAILBOX_t),
822 .read = sysfs_mbox_read,
823 .write = sysfs_mbox_write,
827 lpfc_alloc_sysfs_attr(struct lpfc_hba *phba)
829 struct Scsi_Host *host = phba->host;
832 error = sysfs_create_bin_file(&host->shost_classdev.kobj,
837 error = sysfs_create_bin_file(&host->shost_classdev.kobj,
840 goto out_remove_ctlreg_attr;
843 out_remove_ctlreg_attr:
844 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
850 lpfc_free_sysfs_attr(struct lpfc_hba *phba)
852 struct Scsi_Host *host = phba->host;
854 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr);
855 sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr);
860 * Dynamic FC Host Attributes Support
864 lpfc_get_host_port_id(struct Scsi_Host *shost)
866 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
867 /* note: fc_myDID already in cpu endianness */
868 fc_host_port_id(shost) = phba->fc_myDID;
872 lpfc_get_host_port_type(struct Scsi_Host *shost)
874 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
876 spin_lock_irq(shost->host_lock);
878 if (phba->hba_state == LPFC_HBA_READY) {
879 if (phba->fc_topology == TOPOLOGY_LOOP) {
880 if (phba->fc_flag & FC_PUBLIC_LOOP)
881 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
883 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
885 if (phba->fc_flag & FC_FABRIC)
886 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
888 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
891 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
893 spin_unlock_irq(shost->host_lock);
897 lpfc_get_host_port_state(struct Scsi_Host *shost)
899 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
901 spin_lock_irq(shost->host_lock);
903 if (phba->fc_flag & FC_OFFLINE_MODE)
904 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
906 switch (phba->hba_state) {
907 case LPFC_INIT_START:
908 case LPFC_INIT_MBX_CMDS:
910 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
913 case LPFC_LOCAL_CFG_LINK:
915 case LPFC_FABRIC_CFG_LINK:
918 case LPFC_BUILD_DISC_LIST:
922 /* Links up, beyond this port_type reports state */
923 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
926 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
929 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
934 spin_unlock_irq(shost->host_lock);
938 lpfc_get_host_speed(struct Scsi_Host *shost)
940 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
942 spin_lock_irq(shost->host_lock);
944 if (phba->hba_state == LPFC_HBA_READY) {
945 switch(phba->fc_linkspeed) {
947 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
950 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
953 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
956 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
961 spin_unlock_irq(shost->host_lock);
965 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
967 struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0];
970 spin_lock_irq(shost->host_lock);
972 if ((phba->fc_flag & FC_FABRIC) ||
973 ((phba->fc_topology == TOPOLOGY_LOOP) &&
974 (phba->fc_flag & FC_PUBLIC_LOOP)))
975 memcpy(&nodename, &phba->fc_fabparam.nodeName, sizeof(u64));
977 /* fabric is local port if there is no F/FL_Port */
978 memcpy(&nodename, &phba->fc_nodename, sizeof(u64));
980 spin_unlock_irq(shost->host_lock);
982 fc_host_fabric_name(shost) = be64_to_cpu(nodename);
986 static struct fc_host_statistics *
987 lpfc_get_stats(struct Scsi_Host *shost)
989 struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0];
990 struct lpfc_sli *psli = &phba->sli;
991 struct fc_host_statistics *hs =
992 (struct fc_host_statistics *)phba->link_stats;
993 LPFC_MBOXQ_t *pmboxq;
997 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1000 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1003 pmb->mbxCommand = MBX_READ_STATUS;
1004 pmb->mbxOwner = OWN_HOST;
1005 pmboxq->context1 = NULL;
1007 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1008 (!(psli->sli_flag & LPFC_SLI2_ACTIVE))){
1009 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1011 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1013 if (rc != MBX_SUCCESS) {
1015 if (rc == MBX_TIMEOUT)
1016 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1018 mempool_free( pmboxq, phba->mbox_mem_pool);
1023 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1024 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1025 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1026 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1028 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1029 pmb->mbxCommand = MBX_READ_LNK_STAT;
1030 pmb->mbxOwner = OWN_HOST;
1031 pmboxq->context1 = NULL;
1033 if ((phba->fc_flag & FC_OFFLINE_MODE) ||
1034 (!(psli->sli_flag & LPFC_SLI2_ACTIVE))) {
1035 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1037 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1039 if (rc != MBX_SUCCESS) {
1041 if (rc == MBX_TIMEOUT)
1042 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1044 mempool_free( pmboxq, phba->mbox_mem_pool);
1049 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1050 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1051 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1052 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1053 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1054 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1055 hs->error_frames = pmb->un.varRdLnk.crcCnt;
1057 if (phba->fc_topology == TOPOLOGY_LOOP) {
1058 hs->lip_count = (phba->fc_eventTag >> 1);
1062 hs->nos_count = (phba->fc_eventTag >> 1);
1065 hs->dumped_frames = -1;
1068 /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/
1075 * The LPFC driver treats linkdown handling as target loss events so there
1076 * are no sysfs handlers for link_down_tmo.
1079 lpfc_get_starget_port_id(struct scsi_target *starget)
1081 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1082 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1084 struct lpfc_nodelist *ndlp = NULL;
1086 spin_lock_irq(shost->host_lock);
1087 /* Search the mapped list for this target ID */
1088 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1089 if (starget->id == ndlp->nlp_sid) {
1090 did = ndlp->nlp_DID;
1094 spin_unlock_irq(shost->host_lock);
1096 fc_starget_port_id(starget) = did;
1100 lpfc_get_starget_node_name(struct scsi_target *starget)
1102 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1103 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1104 uint64_t node_name = 0;
1105 struct lpfc_nodelist *ndlp = NULL;
1107 spin_lock_irq(shost->host_lock);
1108 /* Search the mapped list for this target ID */
1109 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1110 if (starget->id == ndlp->nlp_sid) {
1111 memcpy(&node_name, &ndlp->nlp_nodename,
1112 sizeof(struct lpfc_name));
1116 spin_unlock_irq(shost->host_lock);
1118 fc_starget_node_name(starget) = be64_to_cpu(node_name);
1122 lpfc_get_starget_port_name(struct scsi_target *starget)
1124 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1125 struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0];
1126 uint64_t port_name = 0;
1127 struct lpfc_nodelist *ndlp = NULL;
1129 spin_lock_irq(shost->host_lock);
1130 /* Search the mapped list for this target ID */
1131 list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) {
1132 if (starget->id == ndlp->nlp_sid) {
1133 memcpy(&port_name, &ndlp->nlp_portname,
1134 sizeof(struct lpfc_name));
1138 spin_unlock_irq(shost->host_lock);
1140 fc_starget_port_name(starget) = be64_to_cpu(port_name);
1144 lpfc_get_rport_loss_tmo(struct fc_rport *rport)
1147 * Return the driver's global value for device loss timeout plus
1148 * five seconds to allow the driver's nodev timer to run.
1150 rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1154 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
1157 * The driver doesn't have a per-target timeout setting. Set
1158 * this value globally. lpfc_nodev_tmo should be greater then 0.
1161 lpfc_nodev_tmo = timeout;
1164 rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
1168 #define lpfc_rport_show_function(field, format_string, sz, cast) \
1170 lpfc_show_rport_##field (struct class_device *cdev, char *buf) \
1172 struct fc_rport *rport = transport_class_to_rport(cdev); \
1173 struct lpfc_rport_data *rdata = rport->hostdata; \
1174 return snprintf(buf, sz, format_string, \
1175 (rdata->target) ? cast rdata->target->field : 0); \
1178 #define lpfc_rport_rd_attr(field, format_string, sz) \
1179 lpfc_rport_show_function(field, format_string, sz, ) \
1180 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
1183 struct fc_function_template lpfc_transport_functions = {
1184 /* fixed attributes the driver supports */
1185 .show_host_node_name = 1,
1186 .show_host_port_name = 1,
1187 .show_host_supported_classes = 1,
1188 .show_host_supported_fc4s = 1,
1189 .show_host_symbolic_name = 1,
1190 .show_host_supported_speeds = 1,
1191 .show_host_maxframe_size = 1,
1193 /* dynamic attributes the driver supports */
1194 .get_host_port_id = lpfc_get_host_port_id,
1195 .show_host_port_id = 1,
1197 .get_host_port_type = lpfc_get_host_port_type,
1198 .show_host_port_type = 1,
1200 .get_host_port_state = lpfc_get_host_port_state,
1201 .show_host_port_state = 1,
1203 /* active_fc4s is shown but doesn't change (thus no get function) */
1204 .show_host_active_fc4s = 1,
1206 .get_host_speed = lpfc_get_host_speed,
1207 .show_host_speed = 1,
1209 .get_host_fabric_name = lpfc_get_host_fabric_name,
1210 .show_host_fabric_name = 1,
1213 * The LPFC driver treats linkdown handling as target loss events
1214 * so there are no sysfs handlers for link_down_tmo.
1217 .get_fc_host_stats = lpfc_get_stats,
1219 /* the LPFC driver doesn't support resetting stats yet */
1221 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
1222 .show_rport_maxframe_size = 1,
1223 .show_rport_supported_classes = 1,
1225 .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
1226 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
1227 .show_rport_dev_loss_tmo = 1,
1229 .get_starget_port_id = lpfc_get_starget_port_id,
1230 .show_starget_port_id = 1,
1232 .get_starget_node_name = lpfc_get_starget_node_name,
1233 .show_starget_node_name = 1,
1235 .get_starget_port_name = lpfc_get_starget_port_name,
1236 .show_starget_port_name = 1,
1240 lpfc_get_cfgparam(struct lpfc_hba *phba)
1242 phba->cfg_log_verbose = lpfc_log_verbose;
1243 phba->cfg_cr_delay = lpfc_cr_delay;
1244 phba->cfg_cr_count = lpfc_cr_count;
1245 phba->cfg_lun_queue_depth = lpfc_lun_queue_depth;
1246 phba->cfg_fcp_class = lpfc_fcp_class;
1247 phba->cfg_use_adisc = lpfc_use_adisc;
1248 phba->cfg_ack0 = lpfc_ack0;
1249 phba->cfg_topology = lpfc_topology;
1250 phba->cfg_scan_down = lpfc_scan_down;
1251 phba->cfg_nodev_tmo = lpfc_nodev_tmo;
1252 phba->cfg_link_speed = lpfc_link_speed;
1253 phba->cfg_fdmi_on = lpfc_fdmi_on;
1254 phba->cfg_discovery_threads = lpfc_discovery_threads;
1255 phba->cfg_max_luns = lpfc_max_luns;
1258 * The total number of segments is the configuration value plus 2
1259 * since the IOCB need a command and response bde.
1261 phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
1264 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
1265 * used to create the sg_dma_buf_pool must be dynamically calculated
1267 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
1268 sizeof(struct fcp_rsp) +
1269 (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
1271 switch (phba->pcidev->device) {
1272 case PCI_DEVICE_ID_LP101:
1273 case PCI_DEVICE_ID_BSMB:
1274 case PCI_DEVICE_ID_ZSMB:
1275 phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH;
1277 case PCI_DEVICE_ID_RFLY:
1278 case PCI_DEVICE_ID_PFLY:
1279 case PCI_DEVICE_ID_BMID:
1280 case PCI_DEVICE_ID_ZMID:
1281 case PCI_DEVICE_ID_TFLY:
1282 phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH;
1285 phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH;