Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_attr.c
blobd65bd178d131a04a1b9f137c73aa9cac6a0510b8
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/ctype.h>
23 #include <linux/delay.h>
24 #include <linux/pci.h>
25 #include <linux/interrupt.h>
26 #include <linux/module.h>
27 #include <linux/aer.h>
28 #include <linux/gfp.h>
29 #include <linux/kernel.h>
31 #include <scsi/scsi.h>
32 #include <scsi/scsi_device.h>
33 #include <scsi/scsi_host.h>
34 #include <scsi/scsi_tcq.h>
35 #include <scsi/scsi_transport_fc.h>
36 #include <scsi/fc/fc_fs.h>
38 #include "lpfc_hw4.h"
39 #include "lpfc_hw.h"
40 #include "lpfc_sli.h"
41 #include "lpfc_sli4.h"
42 #include "lpfc_nl.h"
43 #include "lpfc_disc.h"
44 #include "lpfc_scsi.h"
45 #include "lpfc.h"
46 #include "lpfc_logmsg.h"
47 #include "lpfc_version.h"
48 #include "lpfc_compat.h"
49 #include "lpfc_crtn.h"
50 #include "lpfc_vport.h"
52 #define LPFC_DEF_DEVLOSS_TMO 30
53 #define LPFC_MIN_DEVLOSS_TMO 1
54 #define LPFC_MAX_DEVLOSS_TMO 255
57 * Write key size should be multiple of 4. If write key is changed
58 * make sure that library write key is also changed.
60 #define LPFC_REG_WRITE_KEY_SIZE 4
61 #define LPFC_REG_WRITE_KEY "EMLX"
63 /**
64 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
65 * @incr: integer to convert.
66 * @hdw: ascii string holding converted integer plus a string terminator.
68 * Description:
69 * JEDEC Joint Electron Device Engineering Council.
70 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
71 * character string. The string is then terminated with a NULL in byte 9.
72 * Hex 0-9 becomes ascii '0' to '9'.
73 * Hex a-f becomes ascii '=' to 'B' capital B.
75 * Notes:
76 * Coded for 32 bit integers only.
77 **/
78 static void
79 lpfc_jedec_to_ascii(int incr, char hdw[])
81 int i, j;
82 for (i = 0; i < 8; i++) {
83 j = (incr & 0xf);
84 if (j <= 9)
85 hdw[7 - i] = 0x30 + j;
86 else
87 hdw[7 - i] = 0x61 + j - 10;
88 incr = (incr >> 4);
90 hdw[8] = 0;
91 return;
94 /**
95 * lpfc_drvr_version_show - Return the Emulex driver string with version number
96 * @dev: class unused variable.
97 * @attr: device attribute, not used.
98 * @buf: on return contains the module description text.
100 * Returns: size of formatted string.
102 static ssize_t
103 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
104 char *buf)
106 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
110 * lpfc_enable_fip_show - Return the fip mode of the HBA
111 * @dev: class unused variable.
112 * @attr: device attribute, not used.
113 * @buf: on return contains the module description text.
115 * Returns: size of formatted string.
117 static ssize_t
118 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
119 char *buf)
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;
125 if (phba->hba_flag & HBA_FIP_SUPPORT)
126 return snprintf(buf, PAGE_SIZE, "1\n");
127 else
128 return snprintf(buf, PAGE_SIZE, "0\n");
131 static ssize_t
132 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
133 char *buf)
135 struct Scsi_Host *shost = class_to_shost(dev);
136 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
137 struct lpfc_hba *phba = vport->phba;
139 if (phba->cfg_enable_bg)
140 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
141 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
142 else
143 return snprintf(buf, PAGE_SIZE,
144 "BlockGuard Not Supported\n");
145 else
146 return snprintf(buf, PAGE_SIZE,
147 "BlockGuard Disabled\n");
150 static ssize_t
151 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
152 char *buf)
154 struct Scsi_Host *shost = class_to_shost(dev);
155 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
156 struct lpfc_hba *phba = vport->phba;
158 return snprintf(buf, PAGE_SIZE, "%llu\n",
159 (unsigned long long)phba->bg_guard_err_cnt);
162 static ssize_t
163 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
164 char *buf)
166 struct Scsi_Host *shost = class_to_shost(dev);
167 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
168 struct lpfc_hba *phba = vport->phba;
170 return snprintf(buf, PAGE_SIZE, "%llu\n",
171 (unsigned long long)phba->bg_apptag_err_cnt);
174 static ssize_t
175 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
176 char *buf)
178 struct Scsi_Host *shost = class_to_shost(dev);
179 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
180 struct lpfc_hba *phba = vport->phba;
182 return snprintf(buf, PAGE_SIZE, "%llu\n",
183 (unsigned long long)phba->bg_reftag_err_cnt);
187 * lpfc_info_show - Return some pci info about the host in ascii
188 * @dev: class converted to a Scsi_host structure.
189 * @attr: device attribute, not used.
190 * @buf: on return contains the formatted text from lpfc_info().
192 * Returns: size of formatted string.
194 static ssize_t
195 lpfc_info_show(struct device *dev, struct device_attribute *attr,
196 char *buf)
198 struct Scsi_Host *host = class_to_shost(dev);
200 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
204 * lpfc_serialnum_show - Return the hba serial number in ascii
205 * @dev: class converted to a Scsi_host structure.
206 * @attr: device attribute, not used.
207 * @buf: on return contains the formatted text serial number.
209 * Returns: size of formatted string.
211 static ssize_t
212 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
213 char *buf)
215 struct Scsi_Host *shost = class_to_shost(dev);
216 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
217 struct lpfc_hba *phba = vport->phba;
219 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
223 * lpfc_temp_sensor_show - Return the temperature sensor level
224 * @dev: class converted to a Scsi_host structure.
225 * @attr: device attribute, not used.
226 * @buf: on return contains the formatted support level.
228 * Description:
229 * Returns a number indicating the temperature sensor level currently
230 * supported, zero or one in ascii.
232 * Returns: size of formatted string.
234 static ssize_t
235 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
236 char *buf)
238 struct Scsi_Host *shost = class_to_shost(dev);
239 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
240 struct lpfc_hba *phba = vport->phba;
241 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
245 * lpfc_modeldesc_show - Return the model description of the hba
246 * @dev: class converted to a Scsi_host structure.
247 * @attr: device attribute, not used.
248 * @buf: on return contains the scsi vpd model description.
250 * Returns: size of formatted string.
252 static ssize_t
253 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
254 char *buf)
256 struct Scsi_Host *shost = class_to_shost(dev);
257 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
258 struct lpfc_hba *phba = vport->phba;
260 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
264 * lpfc_modelname_show - Return the model name of the hba
265 * @dev: class converted to a Scsi_host structure.
266 * @attr: device attribute, not used.
267 * @buf: on return contains the scsi vpd model name.
269 * Returns: size of formatted string.
271 static ssize_t
272 lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
273 char *buf)
275 struct Scsi_Host *shost = class_to_shost(dev);
276 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
277 struct lpfc_hba *phba = vport->phba;
279 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
283 * lpfc_programtype_show - Return the program type of the hba
284 * @dev: class converted to a Scsi_host structure.
285 * @attr: device attribute, not used.
286 * @buf: on return contains the scsi vpd program type.
288 * Returns: size of formatted string.
290 static ssize_t
291 lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
292 char *buf)
294 struct Scsi_Host *shost = class_to_shost(dev);
295 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
296 struct lpfc_hba *phba = vport->phba;
298 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
302 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
303 * @dev: class converted to a Scsi_host structure.
304 * @attr: device attribute, not used.
305 * @buf: on return contains the Menlo Maintenance sli flag.
307 * Returns: size of formatted string.
309 static ssize_t
310 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
312 struct Scsi_Host *shost = class_to_shost(dev);
313 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
314 struct lpfc_hba *phba = vport->phba;
316 return snprintf(buf, PAGE_SIZE, "%d\n",
317 (phba->sli.sli_flag & LPFC_MENLO_MAINT));
321 * lpfc_vportnum_show - Return the port number in ascii of the hba
322 * @dev: class converted to a Scsi_host structure.
323 * @attr: device attribute, not used.
324 * @buf: on return contains scsi vpd program type.
326 * Returns: size of formatted string.
328 static ssize_t
329 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
330 char *buf)
332 struct Scsi_Host *shost = class_to_shost(dev);
333 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
334 struct lpfc_hba *phba = vport->phba;
336 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
340 * lpfc_fwrev_show - Return the firmware rev running in the hba
341 * @dev: class converted to a Scsi_host structure.
342 * @attr: device attribute, not used.
343 * @buf: on return contains the scsi vpd program type.
345 * Returns: size of formatted string.
347 static ssize_t
348 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
349 char *buf)
351 struct Scsi_Host *shost = class_to_shost(dev);
352 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
353 struct lpfc_hba *phba = vport->phba;
354 uint32_t if_type;
355 uint8_t sli_family;
356 char fwrev[FW_REV_STR_SIZE];
357 int len;
359 lpfc_decode_firmware_rev(phba, fwrev, 1);
360 if_type = phba->sli4_hba.pc_sli4_params.if_type;
361 sli_family = phba->sli4_hba.pc_sli4_params.sli_family;
363 if (phba->sli_rev < LPFC_SLI_REV4)
364 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d\n",
365 fwrev, phba->sli_rev);
366 else
367 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n",
368 fwrev, phba->sli_rev, if_type, sli_family);
370 return len;
374 * lpfc_hdw_show - Return the jedec information about the hba
375 * @dev: class converted to a Scsi_host structure.
376 * @attr: device attribute, not used.
377 * @buf: on return contains the scsi vpd program type.
379 * Returns: size of formatted string.
381 static ssize_t
382 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
384 char hdw[9];
385 struct Scsi_Host *shost = class_to_shost(dev);
386 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
387 struct lpfc_hba *phba = vport->phba;
388 lpfc_vpd_t *vp = &phba->vpd;
390 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
391 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
395 * lpfc_option_rom_version_show - Return the adapter ROM FCode version
396 * @dev: class converted to a Scsi_host structure.
397 * @attr: device attribute, not used.
398 * @buf: on return contains the ROM and FCode ascii strings.
400 * Returns: size of formatted string.
402 static ssize_t
403 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
404 char *buf)
406 struct Scsi_Host *shost = class_to_shost(dev);
407 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
408 struct lpfc_hba *phba = vport->phba;
409 char fwrev[FW_REV_STR_SIZE];
411 if (phba->sli_rev < LPFC_SLI_REV4)
412 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
414 lpfc_decode_firmware_rev(phba, fwrev, 1);
415 return snprintf(buf, PAGE_SIZE, "%s\n", fwrev);
419 * lpfc_state_show - Return the link state of the port
420 * @dev: class converted to a Scsi_host structure.
421 * @attr: device attribute, not used.
422 * @buf: on return contains text describing the state of the link.
424 * Notes:
425 * The switch statement has no default so zero will be returned.
427 * Returns: size of formatted string.
429 static ssize_t
430 lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
431 char *buf)
433 struct Scsi_Host *shost = class_to_shost(dev);
434 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
435 struct lpfc_hba *phba = vport->phba;
436 int len = 0;
438 switch (phba->link_state) {
439 case LPFC_LINK_UNKNOWN:
440 case LPFC_WARM_START:
441 case LPFC_INIT_START:
442 case LPFC_INIT_MBX_CMDS:
443 case LPFC_LINK_DOWN:
444 case LPFC_HBA_ERROR:
445 if (phba->hba_flag & LINK_DISABLED)
446 len += snprintf(buf + len, PAGE_SIZE-len,
447 "Link Down - User disabled\n");
448 else
449 len += snprintf(buf + len, PAGE_SIZE-len,
450 "Link Down\n");
451 break;
452 case LPFC_LINK_UP:
453 case LPFC_CLEAR_LA:
454 case LPFC_HBA_READY:
455 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
457 switch (vport->port_state) {
458 case LPFC_LOCAL_CFG_LINK:
459 len += snprintf(buf + len, PAGE_SIZE-len,
460 "Configuring Link\n");
461 break;
462 case LPFC_FDISC:
463 case LPFC_FLOGI:
464 case LPFC_FABRIC_CFG_LINK:
465 case LPFC_NS_REG:
466 case LPFC_NS_QRY:
467 case LPFC_BUILD_DISC_LIST:
468 case LPFC_DISC_AUTH:
469 len += snprintf(buf + len, PAGE_SIZE - len,
470 "Discovery\n");
471 break;
472 case LPFC_VPORT_READY:
473 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
474 break;
476 case LPFC_VPORT_FAILED:
477 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
478 break;
480 case LPFC_VPORT_UNKNOWN:
481 len += snprintf(buf + len, PAGE_SIZE - len,
482 "Unknown\n");
483 break;
485 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
486 len += snprintf(buf + len, PAGE_SIZE-len,
487 " Menlo Maint Mode\n");
488 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
489 if (vport->fc_flag & FC_PUBLIC_LOOP)
490 len += snprintf(buf + len, PAGE_SIZE-len,
491 " Public Loop\n");
492 else
493 len += snprintf(buf + len, PAGE_SIZE-len,
494 " Private Loop\n");
495 } else {
496 if (vport->fc_flag & FC_FABRIC)
497 len += snprintf(buf + len, PAGE_SIZE-len,
498 " Fabric\n");
499 else
500 len += snprintf(buf + len, PAGE_SIZE-len,
501 " Point-2-Point\n");
505 return len;
509 * lpfc_sli4_protocol_show - Return the fip mode of the HBA
510 * @dev: class unused variable.
511 * @attr: device attribute, not used.
512 * @buf: on return contains the module description text.
514 * Returns: size of formatted string.
516 static ssize_t
517 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr,
518 char *buf)
520 struct Scsi_Host *shost = class_to_shost(dev);
521 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
522 struct lpfc_hba *phba = vport->phba;
524 if (phba->sli_rev < LPFC_SLI_REV4)
525 return snprintf(buf, PAGE_SIZE, "fc\n");
527 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) {
528 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE)
529 return snprintf(buf, PAGE_SIZE, "fcoe\n");
530 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)
531 return snprintf(buf, PAGE_SIZE, "fc\n");
533 return snprintf(buf, PAGE_SIZE, "unknown\n");
537 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage
538 * (OAS) is supported.
539 * @dev: class unused variable.
540 * @attr: device attribute, not used.
541 * @buf: on return contains the module description text.
543 * Returns: size of formatted string.
545 static ssize_t
546 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr,
547 char *buf)
549 struct Scsi_Host *shost = class_to_shost(dev);
550 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
551 struct lpfc_hba *phba = vport->phba;
553 return snprintf(buf, PAGE_SIZE, "%d\n",
554 phba->sli4_hba.pc_sli4_params.oas_supported);
558 * lpfc_link_state_store - Transition the link_state on an HBA port
559 * @dev: class device that is converted into a Scsi_host.
560 * @attr: device attribute, not used.
561 * @buf: one or more lpfc_polling_flags values.
562 * @count: not used.
564 * Returns:
565 * -EINVAL if the buffer is not "up" or "down"
566 * return from link state change function if non-zero
567 * length of the buf on success
569 static ssize_t
570 lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
571 const char *buf, size_t count)
573 struct Scsi_Host *shost = class_to_shost(dev);
574 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
575 struct lpfc_hba *phba = vport->phba;
577 int status = -EINVAL;
579 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
580 (phba->link_state == LPFC_LINK_DOWN))
581 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
582 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
583 (phba->link_state >= LPFC_LINK_UP))
584 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
586 if (status == 0)
587 return strlen(buf);
588 else
589 return status;
593 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
594 * @dev: class device that is converted into a Scsi_host.
595 * @attr: device attribute, not used.
596 * @buf: on return contains the sum of fc mapped and unmapped.
598 * Description:
599 * Returns the ascii text number of the sum of the fc mapped and unmapped
600 * vport counts.
602 * Returns: size of formatted string.
604 static ssize_t
605 lpfc_num_discovered_ports_show(struct device *dev,
606 struct device_attribute *attr, char *buf)
608 struct Scsi_Host *shost = class_to_shost(dev);
609 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
611 return snprintf(buf, PAGE_SIZE, "%d\n",
612 vport->fc_map_cnt + vport->fc_unmap_cnt);
616 * lpfc_issue_lip - Misnomer, name carried over from long ago
617 * @shost: Scsi_Host pointer.
619 * Description:
620 * Bring the link down gracefully then re-init the link. The firmware will
621 * re-init the fiber channel interface as required. Does not issue a LIP.
623 * Returns:
624 * -EPERM port offline or management commands are being blocked
625 * -ENOMEM cannot allocate memory for the mailbox command
626 * -EIO error sending the mailbox command
627 * zero for success
629 static int
630 lpfc_issue_lip(struct Scsi_Host *shost)
632 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
633 struct lpfc_hba *phba = vport->phba;
634 LPFC_MBOXQ_t *pmboxq;
635 int mbxstatus = MBXERR_ERROR;
637 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
638 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
639 return -EPERM;
641 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
643 if (!pmboxq)
644 return -ENOMEM;
646 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
647 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
648 pmboxq->u.mb.mbxOwner = OWN_HOST;
650 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
652 if ((mbxstatus == MBX_SUCCESS) &&
653 (pmboxq->u.mb.mbxStatus == 0 ||
654 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
655 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
656 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
657 phba->cfg_link_speed);
658 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
659 phba->fc_ratov * 2);
660 if ((mbxstatus == MBX_SUCCESS) &&
661 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
662 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
663 "2859 SLI authentication is required "
664 "for INIT_LINK but has not done yet\n");
667 lpfc_set_loopback_flag(phba);
668 if (mbxstatus != MBX_TIMEOUT)
669 mempool_free(pmboxq, phba->mbox_mem_pool);
671 if (mbxstatus == MBXERR_ERROR)
672 return -EIO;
674 return 0;
678 * lpfc_do_offline - Issues a mailbox command to bring the link down
679 * @phba: lpfc_hba pointer.
680 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
682 * Notes:
683 * Assumes any error from lpfc_do_offline() will be negative.
684 * Can wait up to 5 seconds for the port ring buffers count
685 * to reach zero, prints a warning if it is not zero and continues.
686 * lpfc_workq_post_event() returns a non-zero return code if call fails.
688 * Returns:
689 * -EIO error posting the event
690 * zero for success
692 static int
693 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
695 struct completion online_compl;
696 struct lpfc_sli_ring *pring;
697 struct lpfc_sli *psli;
698 int status = 0;
699 int cnt = 0;
700 int i;
701 int rc;
703 init_completion(&online_compl);
704 rc = lpfc_workq_post_event(phba, &status, &online_compl,
705 LPFC_EVT_OFFLINE_PREP);
706 if (rc == 0)
707 return -ENOMEM;
709 wait_for_completion(&online_compl);
711 if (status != 0)
712 return -EIO;
714 psli = &phba->sli;
716 /* Wait a little for things to settle down, but not
717 * long enough for dev loss timeout to expire.
719 for (i = 0; i < psli->num_rings; i++) {
720 pring = &psli->ring[i];
721 while (!list_empty(&pring->txcmplq)) {
722 msleep(10);
723 if (cnt++ > 500) { /* 5 secs */
724 lpfc_printf_log(phba,
725 KERN_WARNING, LOG_INIT,
726 "0466 Outstanding IO when "
727 "bringing Adapter offline\n");
728 break;
733 init_completion(&online_compl);
734 rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
735 if (rc == 0)
736 return -ENOMEM;
738 wait_for_completion(&online_compl);
740 if (status != 0)
741 return -EIO;
743 return 0;
747 * lpfc_selective_reset - Offline then onlines the port
748 * @phba: lpfc_hba pointer.
750 * Description:
751 * If the port is configured to allow a reset then the hba is brought
752 * offline then online.
754 * Notes:
755 * Assumes any error from lpfc_do_offline() will be negative.
756 * Do not make this function static.
758 * Returns:
759 * lpfc_do_offline() return code if not zero
760 * -EIO reset not configured or error posting the event
761 * zero for success
764 lpfc_selective_reset(struct lpfc_hba *phba)
766 struct completion online_compl;
767 int status = 0;
768 int rc;
770 if (!phba->cfg_enable_hba_reset)
771 return -EACCES;
773 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) {
774 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
776 if (status != 0)
777 return status;
780 init_completion(&online_compl);
781 rc = lpfc_workq_post_event(phba, &status, &online_compl,
782 LPFC_EVT_ONLINE);
783 if (rc == 0)
784 return -ENOMEM;
786 wait_for_completion(&online_compl);
788 if (status != 0)
789 return -EIO;
791 return 0;
795 * lpfc_issue_reset - Selectively resets an adapter
796 * @dev: class device that is converted into a Scsi_host.
797 * @attr: device attribute, not used.
798 * @buf: containing the string "selective".
799 * @count: unused variable.
801 * Description:
802 * If the buf contains the string "selective" then lpfc_selective_reset()
803 * is called to perform the reset.
805 * Notes:
806 * Assumes any error from lpfc_selective_reset() will be negative.
807 * If lpfc_selective_reset() returns zero then the length of the buffer
808 * is returned which indicates success
810 * Returns:
811 * -EINVAL if the buffer does not contain the string "selective"
812 * length of buf if lpfc-selective_reset() if the call succeeds
813 * return value of lpfc_selective_reset() if the call fails
815 static ssize_t
816 lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
817 const char *buf, size_t count)
819 struct Scsi_Host *shost = class_to_shost(dev);
820 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
821 struct lpfc_hba *phba = vport->phba;
822 int status = -EINVAL;
824 if (!phba->cfg_enable_hba_reset)
825 return -EACCES;
827 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
828 status = phba->lpfc_selective_reset(phba);
830 if (status == 0)
831 return strlen(buf);
832 else
833 return status;
837 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
838 * @phba: lpfc_hba pointer.
840 * Description:
841 * SLI4 interface type-2 device to wait on the sliport status register for
842 * the readyness after performing a firmware reset.
844 * Returns:
845 * zero for success, -EPERM when port does not have privilege to perform the
846 * reset, -EIO when port timeout from recovering from the reset.
848 * Note:
849 * As the caller will interpret the return code by value, be careful in making
850 * change or addition to return codes.
853 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
855 struct lpfc_register portstat_reg = {0};
856 int i;
858 msleep(100);
859 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
860 &portstat_reg.word0);
862 /* verify if privileged for the request operation */
863 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) &&
864 !bf_get(lpfc_sliport_status_err, &portstat_reg))
865 return -EPERM;
867 /* wait for the SLI port firmware ready after firmware reset */
868 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
869 msleep(10);
870 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
871 &portstat_reg.word0);
872 if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
873 continue;
874 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
875 continue;
876 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
877 continue;
878 break;
881 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
882 return 0;
883 else
884 return -EIO;
888 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
889 * @phba: lpfc_hba pointer.
891 * Description:
892 * Request SLI4 interface type-2 device to perform a physical register set
893 * access.
895 * Returns:
896 * zero for success
898 static ssize_t
899 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
901 struct completion online_compl;
902 struct pci_dev *pdev = phba->pcidev;
903 uint32_t before_fc_flag;
904 uint32_t sriov_nr_virtfn;
905 uint32_t reg_val;
906 int status = 0, rc = 0;
907 int job_posted = 1, sriov_err;
909 if (!phba->cfg_enable_hba_reset)
910 return -EACCES;
912 if ((phba->sli_rev < LPFC_SLI_REV4) ||
913 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
914 LPFC_SLI_INTF_IF_TYPE_2))
915 return -EPERM;
917 /* Keep state if we need to restore back */
918 before_fc_flag = phba->pport->fc_flag;
919 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;
921 /* Disable SR-IOV virtual functions if enabled */
922 if (phba->cfg_sriov_nr_virtfn) {
923 pci_disable_sriov(pdev);
924 phba->cfg_sriov_nr_virtfn = 0;
927 if (opcode == LPFC_FW_DUMP)
928 phba->hba_flag |= HBA_FW_DUMP_OP;
930 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
932 if (status != 0) {
933 phba->hba_flag &= ~HBA_FW_DUMP_OP;
934 return status;
937 /* wait for the device to be quiesced before firmware reset */
938 msleep(100);
940 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
941 LPFC_CTL_PDEV_CTL_OFFSET);
943 if (opcode == LPFC_FW_DUMP)
944 reg_val |= LPFC_FW_DUMP_REQUEST;
945 else if (opcode == LPFC_FW_RESET)
946 reg_val |= LPFC_CTL_PDEV_CTL_FRST;
947 else if (opcode == LPFC_DV_RESET)
948 reg_val |= LPFC_CTL_PDEV_CTL_DRST;
950 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
951 LPFC_CTL_PDEV_CTL_OFFSET);
952 /* flush */
953 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
955 /* delay driver action following IF_TYPE_2 reset */
956 rc = lpfc_sli4_pdev_status_reg_wait(phba);
958 if (rc == -EPERM) {
959 /* no privilege for reset */
960 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
961 "3150 No privilege to perform the requested "
962 "access: x%x\n", reg_val);
963 } else if (rc == -EIO) {
964 /* reset failed, there is nothing more we can do */
965 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
966 "3153 Fail to perform the requested "
967 "access: x%x\n", reg_val);
968 return rc;
971 /* keep the original port state */
972 if (before_fc_flag & FC_OFFLINE_MODE)
973 goto out;
975 init_completion(&online_compl);
976 job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
977 LPFC_EVT_ONLINE);
978 if (!job_posted)
979 goto out;
981 wait_for_completion(&online_compl);
983 out:
984 /* in any case, restore the virtual functions enabled as before */
985 if (sriov_nr_virtfn) {
986 sriov_err =
987 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
988 if (!sriov_err)
989 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
992 /* return proper error code */
993 if (!rc) {
994 if (!job_posted)
995 rc = -ENOMEM;
996 else if (status)
997 rc = -EIO;
999 return rc;
1003 * lpfc_nport_evt_cnt_show - Return the number of nport events
1004 * @dev: class device that is converted into a Scsi_host.
1005 * @attr: device attribute, not used.
1006 * @buf: on return contains the ascii number of nport events.
1008 * Returns: size of formatted string.
1010 static ssize_t
1011 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
1012 char *buf)
1014 struct Scsi_Host *shost = class_to_shost(dev);
1015 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1016 struct lpfc_hba *phba = vport->phba;
1018 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
1022 * lpfc_board_mode_show - Return the state of the board
1023 * @dev: class device that is converted into a Scsi_host.
1024 * @attr: device attribute, not used.
1025 * @buf: on return contains the state of the adapter.
1027 * Returns: size of formatted string.
1029 static ssize_t
1030 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
1031 char *buf)
1033 struct Scsi_Host *shost = class_to_shost(dev);
1034 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1035 struct lpfc_hba *phba = vport->phba;
1036 char * state;
1038 if (phba->link_state == LPFC_HBA_ERROR)
1039 state = "error";
1040 else if (phba->link_state == LPFC_WARM_START)
1041 state = "warm start";
1042 else if (phba->link_state == LPFC_INIT_START)
1043 state = "offline";
1044 else
1045 state = "online";
1047 return snprintf(buf, PAGE_SIZE, "%s\n", state);
1051 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
1052 * @dev: class device that is converted into a Scsi_host.
1053 * @attr: device attribute, not used.
1054 * @buf: containing one of the strings "online", "offline", "warm" or "error".
1055 * @count: unused variable.
1057 * Returns:
1058 * -EACCES if enable hba reset not enabled
1059 * -EINVAL if the buffer does not contain a valid string (see above)
1060 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
1061 * buf length greater than zero indicates success
1063 static ssize_t
1064 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
1065 const char *buf, size_t count)
1067 struct Scsi_Host *shost = class_to_shost(dev);
1068 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1069 struct lpfc_hba *phba = vport->phba;
1070 struct completion online_compl;
1071 char *board_mode_str = NULL;
1072 int status = 0;
1073 int rc;
1075 if (!phba->cfg_enable_hba_reset) {
1076 status = -EACCES;
1077 goto board_mode_out;
1080 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1081 "3050 lpfc_board_mode set to %s\n", buf);
1083 init_completion(&online_compl);
1085 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
1086 rc = lpfc_workq_post_event(phba, &status, &online_compl,
1087 LPFC_EVT_ONLINE);
1088 if (rc == 0) {
1089 status = -ENOMEM;
1090 goto board_mode_out;
1092 wait_for_completion(&online_compl);
1093 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
1094 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
1095 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
1096 if (phba->sli_rev == LPFC_SLI_REV4)
1097 status = -EINVAL;
1098 else
1099 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
1100 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
1101 if (phba->sli_rev == LPFC_SLI_REV4)
1102 status = -EINVAL;
1103 else
1104 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
1105 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
1106 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
1107 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
1108 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
1109 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
1110 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
1111 else
1112 status = -EINVAL;
1114 board_mode_out:
1115 if (!status)
1116 return strlen(buf);
1117 else {
1118 board_mode_str = strchr(buf, '\n');
1119 if (board_mode_str)
1120 *board_mode_str = '\0';
1121 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1122 "3097 Failed \"%s\", status(%d), "
1123 "fc_flag(x%x)\n",
1124 buf, status, phba->pport->fc_flag);
1125 return status;
1130 * lpfc_get_hba_info - Return various bits of informaton about the adapter
1131 * @phba: pointer to the adapter structure.
1132 * @mxri: max xri count.
1133 * @axri: available xri count.
1134 * @mrpi: max rpi count.
1135 * @arpi: available rpi count.
1136 * @mvpi: max vpi count.
1137 * @avpi: available vpi count.
1139 * Description:
1140 * If an integer pointer for an count is not null then the value for the
1141 * count is returned.
1143 * Returns:
1144 * zero on error
1145 * one for success
1147 static int
1148 lpfc_get_hba_info(struct lpfc_hba *phba,
1149 uint32_t *mxri, uint32_t *axri,
1150 uint32_t *mrpi, uint32_t *arpi,
1151 uint32_t *mvpi, uint32_t *avpi)
1153 struct lpfc_mbx_read_config *rd_config;
1154 LPFC_MBOXQ_t *pmboxq;
1155 MAILBOX_t *pmb;
1156 int rc = 0;
1157 uint32_t max_vpi;
1160 * prevent udev from issuing mailbox commands until the port is
1161 * configured.
1163 if (phba->link_state < LPFC_LINK_DOWN ||
1164 !phba->mbox_mem_pool ||
1165 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
1166 return 0;
1168 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
1169 return 0;
1171 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1172 if (!pmboxq)
1173 return 0;
1174 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1176 pmb = &pmboxq->u.mb;
1177 pmb->mbxCommand = MBX_READ_CONFIG;
1178 pmb->mbxOwner = OWN_HOST;
1179 pmboxq->context1 = NULL;
1181 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1182 rc = MBX_NOT_FINISHED;
1183 else
1184 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1186 if (rc != MBX_SUCCESS) {
1187 if (rc != MBX_TIMEOUT)
1188 mempool_free(pmboxq, phba->mbox_mem_pool);
1189 return 0;
1192 if (phba->sli_rev == LPFC_SLI_REV4) {
1193 rd_config = &pmboxq->u.mqe.un.rd_config;
1194 if (mrpi)
1195 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
1196 if (arpi)
1197 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
1198 phba->sli4_hba.max_cfg_param.rpi_used;
1199 if (mxri)
1200 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
1201 if (axri)
1202 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
1203 phba->sli4_hba.max_cfg_param.xri_used;
1205 /* Account for differences with SLI-3. Get vpi count from
1206 * mailbox data and subtract one for max vpi value.
1208 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
1209 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
1211 if (mvpi)
1212 *mvpi = max_vpi;
1213 if (avpi)
1214 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
1215 } else {
1216 if (mrpi)
1217 *mrpi = pmb->un.varRdConfig.max_rpi;
1218 if (arpi)
1219 *arpi = pmb->un.varRdConfig.avail_rpi;
1220 if (mxri)
1221 *mxri = pmb->un.varRdConfig.max_xri;
1222 if (axri)
1223 *axri = pmb->un.varRdConfig.avail_xri;
1224 if (mvpi)
1225 *mvpi = pmb->un.varRdConfig.max_vpi;
1226 if (avpi)
1227 *avpi = pmb->un.varRdConfig.avail_vpi;
1230 mempool_free(pmboxq, phba->mbox_mem_pool);
1231 return 1;
1235 * lpfc_max_rpi_show - Return maximum rpi
1236 * @dev: class device that is converted into a Scsi_host.
1237 * @attr: device attribute, not used.
1238 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
1240 * Description:
1241 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1242 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1243 * to "Unknown" and the buffer length is returned, therefore the caller
1244 * must check for "Unknown" in the buffer to detect a failure.
1246 * Returns: size of formatted string.
1248 static ssize_t
1249 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
1250 char *buf)
1252 struct Scsi_Host *shost = class_to_shost(dev);
1253 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1254 struct lpfc_hba *phba = vport->phba;
1255 uint32_t cnt;
1257 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
1258 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1259 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1263 * lpfc_used_rpi_show - Return maximum rpi minus available rpi
1264 * @dev: class device that is converted into a Scsi_host.
1265 * @attr: device attribute, not used.
1266 * @buf: containing the used rpi count in decimal or "Unknown".
1268 * Description:
1269 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
1270 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1271 * to "Unknown" and the buffer length is returned, therefore the caller
1272 * must check for "Unknown" in the buffer to detect a failure.
1274 * Returns: size of formatted string.
1276 static ssize_t
1277 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
1278 char *buf)
1280 struct Scsi_Host *shost = class_to_shost(dev);
1281 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1282 struct lpfc_hba *phba = vport->phba;
1283 uint32_t cnt, acnt;
1285 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
1286 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1287 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1291 * lpfc_max_xri_show - Return maximum xri
1292 * @dev: class device that is converted into a Scsi_host.
1293 * @attr: device attribute, not used.
1294 * @buf: on return contains the maximum xri count in decimal or "Unknown".
1296 * Description:
1297 * Calls lpfc_get_hba_info() asking for just the mrpi count.
1298 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1299 * to "Unknown" and the buffer length is returned, therefore the caller
1300 * must check for "Unknown" in the buffer to detect a failure.
1302 * Returns: size of formatted string.
1304 static ssize_t
1305 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
1306 char *buf)
1308 struct Scsi_Host *shost = class_to_shost(dev);
1309 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1310 struct lpfc_hba *phba = vport->phba;
1311 uint32_t cnt;
1313 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
1314 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1315 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1319 * lpfc_used_xri_show - Return maximum xpi minus the available xpi
1320 * @dev: class device that is converted into a Scsi_host.
1321 * @attr: device attribute, not used.
1322 * @buf: on return contains the used xri count in decimal or "Unknown".
1324 * Description:
1325 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
1326 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1327 * to "Unknown" and the buffer length is returned, therefore the caller
1328 * must check for "Unknown" in the buffer to detect a failure.
1330 * Returns: size of formatted string.
1332 static ssize_t
1333 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
1334 char *buf)
1336 struct Scsi_Host *shost = class_to_shost(dev);
1337 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1338 struct lpfc_hba *phba = vport->phba;
1339 uint32_t cnt, acnt;
1341 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
1342 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1343 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1347 * lpfc_max_vpi_show - Return maximum vpi
1348 * @dev: class device that is converted into a Scsi_host.
1349 * @attr: device attribute, not used.
1350 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
1352 * Description:
1353 * Calls lpfc_get_hba_info() asking for just the mvpi count.
1354 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1355 * to "Unknown" and the buffer length is returned, therefore the caller
1356 * must check for "Unknown" in the buffer to detect a failure.
1358 * Returns: size of formatted string.
1360 static ssize_t
1361 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
1362 char *buf)
1364 struct Scsi_Host *shost = class_to_shost(dev);
1365 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1366 struct lpfc_hba *phba = vport->phba;
1367 uint32_t cnt;
1369 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
1370 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
1371 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1375 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
1376 * @dev: class device that is converted into a Scsi_host.
1377 * @attr: device attribute, not used.
1378 * @buf: on return contains the used vpi count in decimal or "Unknown".
1380 * Description:
1381 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
1382 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
1383 * to "Unknown" and the buffer length is returned, therefore the caller
1384 * must check for "Unknown" in the buffer to detect a failure.
1386 * Returns: size of formatted string.
1388 static ssize_t
1389 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
1390 char *buf)
1392 struct Scsi_Host *shost = class_to_shost(dev);
1393 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1394 struct lpfc_hba *phba = vport->phba;
1395 uint32_t cnt, acnt;
1397 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
1398 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
1399 return snprintf(buf, PAGE_SIZE, "Unknown\n");
1403 * lpfc_npiv_info_show - Return text about NPIV support for the adapter
1404 * @dev: class device that is converted into a Scsi_host.
1405 * @attr: device attribute, not used.
1406 * @buf: text that must be interpreted to determine if npiv is supported.
1408 * Description:
1409 * Buffer will contain text indicating npiv is not suppoerted on the port,
1410 * the port is an NPIV physical port, or it is an npiv virtual port with
1411 * the id of the vport.
1413 * Returns: size of formatted string.
1415 static ssize_t
1416 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
1417 char *buf)
1419 struct Scsi_Host *shost = class_to_shost(dev);
1420 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1421 struct lpfc_hba *phba = vport->phba;
1423 if (!(phba->max_vpi))
1424 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
1425 if (vport->port_type == LPFC_PHYSICAL_PORT)
1426 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
1427 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
1431 * lpfc_poll_show - Return text about poll support for the adapter
1432 * @dev: class device that is converted into a Scsi_host.
1433 * @attr: device attribute, not used.
1434 * @buf: on return contains the cfg_poll in hex.
1436 * Notes:
1437 * cfg_poll should be a lpfc_polling_flags type.
1439 * Returns: size of formatted string.
1441 static ssize_t
1442 lpfc_poll_show(struct device *dev, struct device_attribute *attr,
1443 char *buf)
1445 struct Scsi_Host *shost = class_to_shost(dev);
1446 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1447 struct lpfc_hba *phba = vport->phba;
1449 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
1453 * lpfc_poll_store - Set the value of cfg_poll for the adapter
1454 * @dev: class device that is converted into a Scsi_host.
1455 * @attr: device attribute, not used.
1456 * @buf: one or more lpfc_polling_flags values.
1457 * @count: not used.
1459 * Notes:
1460 * buf contents converted to integer and checked for a valid value.
1462 * Returns:
1463 * -EINVAL if the buffer connot be converted or is out of range
1464 * length of the buf on success
1466 static ssize_t
1467 lpfc_poll_store(struct device *dev, struct device_attribute *attr,
1468 const char *buf, size_t count)
1470 struct Scsi_Host *shost = class_to_shost(dev);
1471 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1472 struct lpfc_hba *phba = vport->phba;
1473 uint32_t creg_val;
1474 uint32_t old_val;
1475 int val=0;
1477 if (!isdigit(buf[0]))
1478 return -EINVAL;
1480 if (sscanf(buf, "%i", &val) != 1)
1481 return -EINVAL;
1483 if ((val & 0x3) != val)
1484 return -EINVAL;
1486 if (phba->sli_rev == LPFC_SLI_REV4)
1487 val = 0;
1489 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1490 "3051 lpfc_poll changed from %d to %d\n",
1491 phba->cfg_poll, val);
1493 spin_lock_irq(&phba->hbalock);
1495 old_val = phba->cfg_poll;
1497 if (val & ENABLE_FCP_RING_POLLING) {
1498 if ((val & DISABLE_FCP_RING_INT) &&
1499 !(old_val & DISABLE_FCP_RING_INT)) {
1500 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1501 spin_unlock_irq(&phba->hbalock);
1502 return -EINVAL;
1504 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
1505 writel(creg_val, phba->HCregaddr);
1506 readl(phba->HCregaddr); /* flush */
1508 lpfc_poll_start_timer(phba);
1510 } else if (val != 0x0) {
1511 spin_unlock_irq(&phba->hbalock);
1512 return -EINVAL;
1515 if (!(val & DISABLE_FCP_RING_INT) &&
1516 (old_val & DISABLE_FCP_RING_INT))
1518 spin_unlock_irq(&phba->hbalock);
1519 del_timer(&phba->fcp_poll_timer);
1520 spin_lock_irq(&phba->hbalock);
1521 if (lpfc_readl(phba->HCregaddr, &creg_val)) {
1522 spin_unlock_irq(&phba->hbalock);
1523 return -EINVAL;
1525 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
1526 writel(creg_val, phba->HCregaddr);
1527 readl(phba->HCregaddr); /* flush */
1530 phba->cfg_poll = val;
1532 spin_unlock_irq(&phba->hbalock);
1534 return strlen(buf);
1538 * lpfc_fips_level_show - Return the current FIPS level for the HBA
1539 * @dev: class unused variable.
1540 * @attr: device attribute, not used.
1541 * @buf: on return contains the module description text.
1543 * Returns: size of formatted string.
1545 static ssize_t
1546 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr,
1547 char *buf)
1549 struct Scsi_Host *shost = class_to_shost(dev);
1550 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1551 struct lpfc_hba *phba = vport->phba;
1553 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
1557 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
1558 * @dev: class unused variable.
1559 * @attr: device attribute, not used.
1560 * @buf: on return contains the module description text.
1562 * Returns: size of formatted string.
1564 static ssize_t
1565 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr,
1566 char *buf)
1568 struct Scsi_Host *shost = class_to_shost(dev);
1569 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1570 struct lpfc_hba *phba = vport->phba;
1572 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
1576 * lpfc_dss_show - Return the current state of dss and the configured state
1577 * @dev: class converted to a Scsi_host structure.
1578 * @attr: device attribute, not used.
1579 * @buf: on return contains the formatted text.
1581 * Returns: size of formatted string.
1583 static ssize_t
1584 lpfc_dss_show(struct device *dev, struct device_attribute *attr,
1585 char *buf)
1587 struct Scsi_Host *shost = class_to_shost(dev);
1588 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1589 struct lpfc_hba *phba = vport->phba;
1591 return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
1592 (phba->cfg_enable_dss) ? "Enabled" : "Disabled",
1593 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
1594 "" : "Not ");
1598 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
1599 * @dev: class converted to a Scsi_host structure.
1600 * @attr: device attribute, not used.
1601 * @buf: on return contains the formatted support level.
1603 * Description:
1604 * Returns the maximum number of virtual functions a physical function can
1605 * support, 0 will be returned if called on virtual function.
1607 * Returns: size of formatted string.
1609 static ssize_t
1610 lpfc_sriov_hw_max_virtfn_show(struct device *dev,
1611 struct device_attribute *attr,
1612 char *buf)
1614 struct Scsi_Host *shost = class_to_shost(dev);
1615 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1616 struct lpfc_hba *phba = vport->phba;
1617 uint16_t max_nr_virtfn;
1619 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
1620 return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
1624 * lpfc_param_show - Return a cfg attribute value in decimal
1626 * Description:
1627 * Macro that given an attr e.g. hba_queue_depth expands
1628 * into a function with the name lpfc_hba_queue_depth_show.
1630 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1631 * @dev: class device that is converted into a Scsi_host.
1632 * @attr: device attribute, not used.
1633 * @buf: on return contains the attribute value in decimal.
1635 * Returns: size of formatted string.
1637 #define lpfc_param_show(attr) \
1638 static ssize_t \
1639 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1640 char *buf) \
1642 struct Scsi_Host *shost = class_to_shost(dev);\
1643 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1644 struct lpfc_hba *phba = vport->phba;\
1645 uint val = 0;\
1646 val = phba->cfg_##attr;\
1647 return snprintf(buf, PAGE_SIZE, "%d\n",\
1648 phba->cfg_##attr);\
1652 * lpfc_param_hex_show - Return a cfg attribute value in hex
1654 * Description:
1655 * Macro that given an attr e.g. hba_queue_depth expands
1656 * into a function with the name lpfc_hba_queue_depth_show
1658 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1659 * @dev: class device that is converted into a Scsi_host.
1660 * @attr: device attribute, not used.
1661 * @buf: on return contains the attribute value in hexadecimal.
1663 * Returns: size of formatted string.
1665 #define lpfc_param_hex_show(attr) \
1666 static ssize_t \
1667 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1668 char *buf) \
1670 struct Scsi_Host *shost = class_to_shost(dev);\
1671 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1672 struct lpfc_hba *phba = vport->phba;\
1673 uint val = 0;\
1674 val = phba->cfg_##attr;\
1675 return snprintf(buf, PAGE_SIZE, "%#x\n",\
1676 phba->cfg_##attr);\
1680 * lpfc_param_init - Initializes a cfg attribute
1682 * Description:
1683 * Macro that given an attr e.g. hba_queue_depth expands
1684 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1685 * takes a default argument, a minimum and maximum argument.
1687 * lpfc_##attr##_init: Initializes an attribute.
1688 * @phba: pointer the the adapter structure.
1689 * @val: integer attribute value.
1691 * Validates the min and max values then sets the adapter config field
1692 * accordingly, or uses the default if out of range and prints an error message.
1694 * Returns:
1695 * zero on success
1696 * -EINVAL if default used
1698 #define lpfc_param_init(attr, default, minval, maxval) \
1699 static int \
1700 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
1702 if (val >= minval && val <= maxval) {\
1703 phba->cfg_##attr = val;\
1704 return 0;\
1706 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1707 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
1708 "allowed range is ["#minval", "#maxval"]\n", val); \
1709 phba->cfg_##attr = default;\
1710 return -EINVAL;\
1714 * lpfc_param_set - Set a cfg attribute value
1716 * Description:
1717 * Macro that given an attr e.g. hba_queue_depth expands
1718 * into a function with the name lpfc_hba_queue_depth_set
1720 * lpfc_##attr##_set: Sets an attribute value.
1721 * @phba: pointer the the adapter structure.
1722 * @val: integer attribute value.
1724 * Description:
1725 * Validates the min and max values then sets the
1726 * adapter config field if in the valid range. prints error message
1727 * and does not set the parameter if invalid.
1729 * Returns:
1730 * zero on success
1731 * -EINVAL if val is invalid
1733 #define lpfc_param_set(attr, default, minval, maxval) \
1734 static int \
1735 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
1737 if (val >= minval && val <= maxval) {\
1738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1739 "3052 lpfc_" #attr " changed from %d to %d\n", \
1740 phba->cfg_##attr, val); \
1741 phba->cfg_##attr = val;\
1742 return 0;\
1744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
1745 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
1746 "allowed range is ["#minval", "#maxval"]\n", val); \
1747 return -EINVAL;\
1751 * lpfc_param_store - Set a vport attribute value
1753 * Description:
1754 * Macro that given an attr e.g. hba_queue_depth expands
1755 * into a function with the name lpfc_hba_queue_depth_store.
1757 * lpfc_##attr##_store: Set an sttribute value.
1758 * @dev: class device that is converted into a Scsi_host.
1759 * @attr: device attribute, not used.
1760 * @buf: contains the attribute value in ascii.
1761 * @count: not used.
1763 * Description:
1764 * Convert the ascii text number to an integer, then
1765 * use the lpfc_##attr##_set function to set the value.
1767 * Returns:
1768 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1769 * length of buffer upon success.
1771 #define lpfc_param_store(attr) \
1772 static ssize_t \
1773 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1774 const char *buf, size_t count) \
1776 struct Scsi_Host *shost = class_to_shost(dev);\
1777 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1778 struct lpfc_hba *phba = vport->phba;\
1779 uint val = 0;\
1780 if (!isdigit(buf[0]))\
1781 return -EINVAL;\
1782 if (sscanf(buf, "%i", &val) != 1)\
1783 return -EINVAL;\
1784 if (lpfc_##attr##_set(phba, val) == 0) \
1785 return strlen(buf);\
1786 else \
1787 return -EINVAL;\
1791 * lpfc_vport_param_show - Return decimal formatted cfg attribute value
1793 * Description:
1794 * Macro that given an attr e.g. hba_queue_depth expands
1795 * into a function with the name lpfc_hba_queue_depth_show
1797 * lpfc_##attr##_show: prints the attribute value in decimal.
1798 * @dev: class device that is converted into a Scsi_host.
1799 * @attr: device attribute, not used.
1800 * @buf: on return contains the attribute value in decimal.
1802 * Returns: length of formatted string.
1804 #define lpfc_vport_param_show(attr) \
1805 static ssize_t \
1806 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1807 char *buf) \
1809 struct Scsi_Host *shost = class_to_shost(dev);\
1810 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1811 uint val = 0;\
1812 val = vport->cfg_##attr;\
1813 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
1817 * lpfc_vport_param_hex_show - Return hex formatted attribute value
1819 * Description:
1820 * Macro that given an attr e.g.
1821 * hba_queue_depth expands into a function with the name
1822 * lpfc_hba_queue_depth_show
1824 * lpfc_##attr##_show: prints the attribute value in hexadecimal.
1825 * @dev: class device that is converted into a Scsi_host.
1826 * @attr: device attribute, not used.
1827 * @buf: on return contains the attribute value in hexadecimal.
1829 * Returns: length of formatted string.
1831 #define lpfc_vport_param_hex_show(attr) \
1832 static ssize_t \
1833 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
1834 char *buf) \
1836 struct Scsi_Host *shost = class_to_shost(dev);\
1837 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1838 uint val = 0;\
1839 val = vport->cfg_##attr;\
1840 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
1844 * lpfc_vport_param_init - Initialize a vport cfg attribute
1846 * Description:
1847 * Macro that given an attr e.g. hba_queue_depth expands
1848 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1849 * takes a default argument, a minimum and maximum argument.
1851 * lpfc_##attr##_init: validates the min and max values then sets the
1852 * adapter config field accordingly, or uses the default if out of range
1853 * and prints an error message.
1854 * @phba: pointer the the adapter structure.
1855 * @val: integer attribute value.
1857 * Returns:
1858 * zero on success
1859 * -EINVAL if default used
1861 #define lpfc_vport_param_init(attr, default, minval, maxval) \
1862 static int \
1863 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
1865 if (val >= minval && val <= maxval) {\
1866 vport->cfg_##attr = val;\
1867 return 0;\
1869 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1870 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
1871 "allowed range is ["#minval", "#maxval"]\n", val); \
1872 vport->cfg_##attr = default;\
1873 return -EINVAL;\
1877 * lpfc_vport_param_set - Set a vport cfg attribute
1879 * Description:
1880 * Macro that given an attr e.g. hba_queue_depth expands
1881 * into a function with the name lpfc_hba_queue_depth_set
1883 * lpfc_##attr##_set: validates the min and max values then sets the
1884 * adapter config field if in the valid range. prints error message
1885 * and does not set the parameter if invalid.
1886 * @phba: pointer the the adapter structure.
1887 * @val: integer attribute value.
1889 * Returns:
1890 * zero on success
1891 * -EINVAL if val is invalid
1893 #define lpfc_vport_param_set(attr, default, minval, maxval) \
1894 static int \
1895 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
1897 if (val >= minval && val <= maxval) {\
1898 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1899 "3053 lpfc_" #attr \
1900 " changed from %d (x%x) to %d (x%x)\n", \
1901 vport->cfg_##attr, vport->cfg_##attr, \
1902 val, val); \
1903 vport->cfg_##attr = val;\
1904 return 0;\
1906 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
1907 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
1908 "allowed range is ["#minval", "#maxval"]\n", val); \
1909 return -EINVAL;\
1913 * lpfc_vport_param_store - Set a vport attribute
1915 * Description:
1916 * Macro that given an attr e.g. hba_queue_depth
1917 * expands into a function with the name lpfc_hba_queue_depth_store
1919 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1920 * use the lpfc_##attr##_set function to set the value.
1921 * @cdev: class device that is converted into a Scsi_host.
1922 * @buf: contains the attribute value in decimal.
1923 * @count: not used.
1925 * Returns:
1926 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1927 * length of buffer upon success.
1929 #define lpfc_vport_param_store(attr) \
1930 static ssize_t \
1931 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
1932 const char *buf, size_t count) \
1934 struct Scsi_Host *shost = class_to_shost(dev);\
1935 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
1936 uint val = 0;\
1937 if (!isdigit(buf[0]))\
1938 return -EINVAL;\
1939 if (sscanf(buf, "%i", &val) != 1)\
1940 return -EINVAL;\
1941 if (lpfc_##attr##_set(vport, val) == 0) \
1942 return strlen(buf);\
1943 else \
1944 return -EINVAL;\
1948 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
1949 static uint lpfc_##name = defval;\
1950 module_param(lpfc_##name, uint, S_IRUGO);\
1951 MODULE_PARM_DESC(lpfc_##name, desc);\
1952 lpfc_param_init(name, defval, minval, maxval)
1954 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
1955 static uint lpfc_##name = defval;\
1956 module_param(lpfc_##name, uint, S_IRUGO);\
1957 MODULE_PARM_DESC(lpfc_##name, desc);\
1958 lpfc_param_show(name)\
1959 lpfc_param_init(name, defval, minval, maxval)\
1960 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1962 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
1963 static uint lpfc_##name = defval;\
1964 module_param(lpfc_##name, uint, S_IRUGO);\
1965 MODULE_PARM_DESC(lpfc_##name, desc);\
1966 lpfc_param_show(name)\
1967 lpfc_param_init(name, defval, minval, maxval)\
1968 lpfc_param_set(name, defval, minval, maxval)\
1969 lpfc_param_store(name)\
1970 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1971 lpfc_##name##_show, lpfc_##name##_store)
1973 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
1974 static uint lpfc_##name = defval;\
1975 module_param(lpfc_##name, uint, S_IRUGO);\
1976 MODULE_PARM_DESC(lpfc_##name, desc);\
1977 lpfc_param_hex_show(name)\
1978 lpfc_param_init(name, defval, minval, maxval)\
1979 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
1981 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
1982 static uint lpfc_##name = defval;\
1983 module_param(lpfc_##name, uint, S_IRUGO);\
1984 MODULE_PARM_DESC(lpfc_##name, desc);\
1985 lpfc_param_hex_show(name)\
1986 lpfc_param_init(name, defval, minval, maxval)\
1987 lpfc_param_set(name, defval, minval, maxval)\
1988 lpfc_param_store(name)\
1989 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
1990 lpfc_##name##_show, lpfc_##name##_store)
1992 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
1993 static uint lpfc_##name = defval;\
1994 module_param(lpfc_##name, uint, S_IRUGO);\
1995 MODULE_PARM_DESC(lpfc_##name, desc);\
1996 lpfc_vport_param_init(name, defval, minval, maxval)
1998 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
1999 static uint lpfc_##name = defval;\
2000 module_param(lpfc_##name, uint, S_IRUGO);\
2001 MODULE_PARM_DESC(lpfc_##name, desc);\
2002 lpfc_vport_param_show(name)\
2003 lpfc_vport_param_init(name, defval, minval, maxval)\
2004 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
2006 #define LPFC_VPORT_ULL_ATTR_R(name, defval, minval, maxval, desc) \
2007 static uint64_t lpfc_##name = defval;\
2008 module_param(lpfc_##name, ullong, S_IRUGO);\
2009 MODULE_PARM_DESC(lpfc_##name, desc);\
2010 lpfc_vport_param_show(name)\
2011 lpfc_vport_param_init(name, defval, minval, maxval)\
2012 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
2014 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
2015 static uint lpfc_##name = defval;\
2016 module_param(lpfc_##name, uint, S_IRUGO);\
2017 MODULE_PARM_DESC(lpfc_##name, desc);\
2018 lpfc_vport_param_show(name)\
2019 lpfc_vport_param_init(name, defval, minval, maxval)\
2020 lpfc_vport_param_set(name, defval, minval, maxval)\
2021 lpfc_vport_param_store(name)\
2022 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
2023 lpfc_##name##_show, lpfc_##name##_store)
2025 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
2026 static uint lpfc_##name = defval;\
2027 module_param(lpfc_##name, uint, S_IRUGO);\
2028 MODULE_PARM_DESC(lpfc_##name, desc);\
2029 lpfc_vport_param_hex_show(name)\
2030 lpfc_vport_param_init(name, defval, minval, maxval)\
2031 static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
2033 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
2034 static uint lpfc_##name = defval;\
2035 module_param(lpfc_##name, uint, S_IRUGO);\
2036 MODULE_PARM_DESC(lpfc_##name, desc);\
2037 lpfc_vport_param_hex_show(name)\
2038 lpfc_vport_param_init(name, defval, minval, maxval)\
2039 lpfc_vport_param_set(name, defval, minval, maxval)\
2040 lpfc_vport_param_store(name)\
2041 static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
2042 lpfc_##name##_show, lpfc_##name##_store)
2044 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
2045 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
2046 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
2047 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
2048 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
2049 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
2050 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
2051 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
2052 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
2053 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
2054 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
2055 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
2056 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
2057 lpfc_link_state_store);
2058 static DEVICE_ATTR(option_rom_version, S_IRUGO,
2059 lpfc_option_rom_version_show, NULL);
2060 static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
2061 lpfc_num_discovered_ports_show, NULL);
2062 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
2063 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
2064 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
2065 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
2066 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
2067 lpfc_board_mode_show, lpfc_board_mode_store);
2068 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
2069 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
2070 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
2071 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
2072 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
2073 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
2074 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
2075 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
2076 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
2077 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
2078 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
2079 static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
2080 static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
2081 lpfc_sriov_hw_max_virtfn_show, NULL);
2082 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
2083 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
2084 NULL);
2086 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
2087 #define WWN_SZ 8
2089 * lpfc_wwn_set - Convert string to the 8 byte WWN value.
2090 * @buf: WWN string.
2091 * @cnt: Length of string.
2092 * @wwn: Array to receive converted wwn value.
2094 * Returns:
2095 * -EINVAL if the buffer does not contain a valid wwn
2096 * 0 success
2098 static size_t
2099 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[])
2101 unsigned int i, j;
2103 /* Count may include a LF at end of string */
2104 if (buf[cnt-1] == '\n')
2105 cnt--;
2107 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) ||
2108 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
2109 return -EINVAL;
2111 memset(wwn, 0, WWN_SZ);
2113 /* Validate and store the new name */
2114 for (i = 0, j = 0; i < 16; i++) {
2115 if ((*buf >= 'a') && (*buf <= 'f'))
2116 j = ((j << 4) | ((*buf++ - 'a') + 10));
2117 else if ((*buf >= 'A') && (*buf <= 'F'))
2118 j = ((j << 4) | ((*buf++ - 'A') + 10));
2119 else if ((*buf >= '0') && (*buf <= '9'))
2120 j = ((j << 4) | (*buf++ - '0'));
2121 else
2122 return -EINVAL;
2123 if (i % 2) {
2124 wwn[i/2] = j & 0xff;
2125 j = 0;
2128 return 0;
2131 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
2132 * @dev: class device that is converted into a Scsi_host.
2133 * @attr: device attribute, not used.
2134 * @buf: containing the string lpfc_soft_wwn_key.
2135 * @count: must be size of lpfc_soft_wwn_key.
2137 * Returns:
2138 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
2139 * length of buf indicates success
2141 static ssize_t
2142 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
2143 const char *buf, size_t count)
2145 struct Scsi_Host *shost = class_to_shost(dev);
2146 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2147 struct lpfc_hba *phba = vport->phba;
2148 unsigned int cnt = count;
2151 * We're doing a simple sanity check for soft_wwpn setting.
2152 * We require that the user write a specific key to enable
2153 * the soft_wwpn attribute to be settable. Once the attribute
2154 * is written, the enable key resets. If further updates are
2155 * desired, the key must be written again to re-enable the
2156 * attribute.
2158 * The "key" is not secret - it is a hardcoded string shown
2159 * here. The intent is to protect against the random user or
2160 * application that is just writing attributes.
2163 /* count may include a LF at end of string */
2164 if (buf[cnt-1] == '\n')
2165 cnt--;
2167 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
2168 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
2169 return -EINVAL;
2171 phba->soft_wwn_enable = 1;
2172 return count;
2174 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
2175 lpfc_soft_wwn_enable_store);
2178 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
2179 * @dev: class device that is converted into a Scsi_host.
2180 * @attr: device attribute, not used.
2181 * @buf: on return contains the wwpn in hexadecimal.
2183 * Returns: size of formatted string.
2185 static ssize_t
2186 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
2187 char *buf)
2189 struct Scsi_Host *shost = class_to_shost(dev);
2190 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2191 struct lpfc_hba *phba = vport->phba;
2193 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2194 (unsigned long long)phba->cfg_soft_wwpn);
2198 * lpfc_soft_wwpn_store - Set the ww port name of the adapter
2199 * @dev class device that is converted into a Scsi_host.
2200 * @attr: device attribute, not used.
2201 * @buf: contains the wwpn in hexadecimal.
2202 * @count: number of wwpn bytes in buf
2204 * Returns:
2205 * -EACCES hba reset not enabled, adapter over temp
2206 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
2207 * -EIO error taking adapter offline or online
2208 * value of count on success
2210 static ssize_t
2211 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
2212 const char *buf, size_t count)
2214 struct Scsi_Host *shost = class_to_shost(dev);
2215 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2216 struct lpfc_hba *phba = vport->phba;
2217 struct completion online_compl;
2218 int stat1 = 0, stat2 = 0;
2219 unsigned int cnt = count;
2220 u8 wwpn[WWN_SZ];
2221 int rc;
2223 if (!phba->cfg_enable_hba_reset)
2224 return -EACCES;
2225 spin_lock_irq(&phba->hbalock);
2226 if (phba->over_temp_state == HBA_OVER_TEMP) {
2227 spin_unlock_irq(&phba->hbalock);
2228 return -EACCES;
2230 spin_unlock_irq(&phba->hbalock);
2231 /* count may include a LF at end of string */
2232 if (buf[cnt-1] == '\n')
2233 cnt--;
2235 if (!phba->soft_wwn_enable)
2236 return -EINVAL;
2238 /* lock setting wwpn, wwnn down */
2239 phba->soft_wwn_enable = 0;
2241 rc = lpfc_wwn_set(buf, cnt, wwpn);
2242 if (!rc) {
2243 /* not able to set wwpn, unlock it */
2244 phba->soft_wwn_enable = 1;
2245 return rc;
2248 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
2249 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
2250 if (phba->cfg_soft_wwnn)
2251 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
2253 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2254 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
2256 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
2257 if (stat1)
2258 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2259 "0463 lpfc_soft_wwpn attribute set failed to "
2260 "reinit adapter - %d\n", stat1);
2261 init_completion(&online_compl);
2262 rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
2263 LPFC_EVT_ONLINE);
2264 if (rc == 0)
2265 return -ENOMEM;
2267 wait_for_completion(&online_compl);
2268 if (stat2)
2269 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2270 "0464 lpfc_soft_wwpn attribute set failed to "
2271 "reinit adapter - %d\n", stat2);
2272 return (stat1 || stat2) ? -EIO : count;
2274 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,
2275 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
2278 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
2279 * @dev: class device that is converted into a Scsi_host.
2280 * @attr: device attribute, not used.
2281 * @buf: on return contains the wwnn in hexadecimal.
2283 * Returns: size of formatted string.
2285 static ssize_t
2286 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
2287 char *buf)
2289 struct Scsi_Host *shost = class_to_shost(dev);
2290 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2291 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2292 (unsigned long long)phba->cfg_soft_wwnn);
2296 * lpfc_soft_wwnn_store - sets the ww node name of the adapter
2297 * @cdev: class device that is converted into a Scsi_host.
2298 * @buf: contains the ww node name in hexadecimal.
2299 * @count: number of wwnn bytes in buf.
2301 * Returns:
2302 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
2303 * value of count on success
2305 static ssize_t
2306 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
2307 const char *buf, size_t count)
2309 struct Scsi_Host *shost = class_to_shost(dev);
2310 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2311 unsigned int cnt = count;
2312 u8 wwnn[WWN_SZ];
2313 int rc;
2315 /* count may include a LF at end of string */
2316 if (buf[cnt-1] == '\n')
2317 cnt--;
2319 if (!phba->soft_wwn_enable)
2320 return -EINVAL;
2322 rc = lpfc_wwn_set(buf, cnt, wwnn);
2323 if (!rc) {
2324 /* Allow wwnn to be set many times, as long as the enable
2325 * is set. However, once the wwpn is set, everything locks.
2327 return rc;
2330 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
2332 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
2333 "lpfc%d: soft_wwnn set. Value will take effect upon "
2334 "setting of the soft_wwpn\n", phba->brd_no);
2336 return count;
2338 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,
2339 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
2342 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
2343 * Optimized Access Storage (OAS) operations.
2344 * @dev: class device that is converted into a Scsi_host.
2345 * @attr: device attribute, not used.
2346 * @buf: buffer for passing information.
2348 * Returns:
2349 * value of count
2351 static ssize_t
2352 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr,
2353 char *buf)
2355 struct Scsi_Host *shost = class_to_shost(dev);
2356 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2358 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2359 wwn_to_u64(phba->cfg_oas_tgt_wwpn));
2363 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for
2364 * Optimized Access Storage (OAS) operations.
2365 * @dev: class device that is converted into a Scsi_host.
2366 * @attr: device attribute, not used.
2367 * @buf: buffer for passing information.
2368 * @count: Size of the data buffer.
2370 * Returns:
2371 * -EINVAL count is invalid, invalid wwpn byte invalid
2372 * -EPERM oas is not supported by hba
2373 * value of count on success
2375 static ssize_t
2376 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr,
2377 const char *buf, size_t count)
2379 struct Scsi_Host *shost = class_to_shost(dev);
2380 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2381 unsigned int cnt = count;
2382 uint8_t wwpn[WWN_SZ];
2383 int rc;
2385 if (!phba->cfg_fof)
2386 return -EPERM;
2388 /* count may include a LF at end of string */
2389 if (buf[cnt-1] == '\n')
2390 cnt--;
2392 rc = lpfc_wwn_set(buf, cnt, wwpn);
2393 if (rc)
2394 return rc;
2396 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2397 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2398 if (wwn_to_u64(wwpn) == 0)
2399 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET;
2400 else
2401 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET;
2402 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
2403 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
2404 return count;
2406 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR,
2407 lpfc_oas_tgt_show, lpfc_oas_tgt_store);
2410 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled
2411 * for Optimized Access Storage (OAS) operations.
2412 * @dev: class device that is converted into a Scsi_host.
2413 * @attr: device attribute, not used.
2414 * @buf: buffer for passing information.
2416 * Returns:
2417 * value of count on success
2419 static ssize_t
2420 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr,
2421 char *buf)
2423 struct Scsi_Host *shost = class_to_shost(dev);
2424 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2426 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
2427 wwn_to_u64(phba->cfg_oas_vpt_wwpn));
2431 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled
2432 * for Optimized Access Storage (OAS) operations.
2433 * @dev: class device that is converted into a Scsi_host.
2434 * @attr: device attribute, not used.
2435 * @buf: buffer for passing information.
2436 * @count: Size of the data buffer.
2438 * Returns:
2439 * -EINVAL count is invalid, invalid wwpn byte invalid
2440 * -EPERM oas is not supported by hba
2441 * value of count on success
2443 static ssize_t
2444 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr,
2445 const char *buf, size_t count)
2447 struct Scsi_Host *shost = class_to_shost(dev);
2448 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2449 unsigned int cnt = count;
2450 uint8_t wwpn[WWN_SZ];
2451 int rc;
2453 if (!phba->cfg_fof)
2454 return -EPERM;
2456 /* count may include a LF at end of string */
2457 if (buf[cnt-1] == '\n')
2458 cnt--;
2460 rc = lpfc_wwn_set(buf, cnt, wwpn);
2461 if (rc)
2462 return rc;
2464 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2465 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
2466 if (wwn_to_u64(wwpn) == 0)
2467 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT;
2468 else
2469 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT;
2470 phba->cfg_oas_flags &= ~OAS_LUN_VALID;
2471 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
2472 return count;
2474 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR,
2475 lpfc_oas_vpt_show, lpfc_oas_vpt_store);
2478 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled)
2479 * of whether luns will be enabled or disabled
2480 * for Optimized Access Storage (OAS) operations.
2481 * @dev: class device that is converted into a Scsi_host.
2482 * @attr: device attribute, not used.
2483 * @buf: buffer for passing information.
2485 * Returns:
2486 * size of formatted string.
2488 static ssize_t
2489 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr,
2490 char *buf)
2492 struct Scsi_Host *shost = class_to_shost(dev);
2493 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2495 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
2499 * lpfc_oas_lun_state_store - Store the state (enabled or disabled)
2500 * of whether luns will be enabled or disabled
2501 * for Optimized Access Storage (OAS) operations.
2502 * @dev: class device that is converted into a Scsi_host.
2503 * @attr: device attribute, not used.
2504 * @buf: buffer for passing information.
2505 * @count: Size of the data buffer.
2507 * Returns:
2508 * -EINVAL count is invalid, invalid wwpn byte invalid
2509 * -EPERM oas is not supported by hba
2510 * value of count on success
2512 static ssize_t
2513 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr,
2514 const char *buf, size_t count)
2516 struct Scsi_Host *shost = class_to_shost(dev);
2517 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2518 int val = 0;
2520 if (!phba->cfg_fof)
2521 return -EPERM;
2523 if (!isdigit(buf[0]))
2524 return -EINVAL;
2526 if (sscanf(buf, "%i", &val) != 1)
2527 return -EINVAL;
2529 if ((val != 0) && (val != 1))
2530 return -EINVAL;
2532 phba->cfg_oas_lun_state = val;
2534 return strlen(buf);
2536 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR,
2537 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store);
2540 * lpfc_oas_lun_status_show - Return the status of the Optimized Access
2541 * Storage (OAS) lun returned by the
2542 * lpfc_oas_lun_show function.
2543 * @dev: class device that is converted into a Scsi_host.
2544 * @attr: device attribute, not used.
2545 * @buf: buffer for passing information.
2547 * Returns:
2548 * size of formatted string.
2550 static ssize_t
2551 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr,
2552 char *buf)
2554 struct Scsi_Host *shost = class_to_shost(dev);
2555 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2557 if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
2558 return -EFAULT;
2560 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
2562 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
2563 lpfc_oas_lun_status_show, NULL);
2567 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage
2568 * (OAS) operations.
2569 * @phba: lpfc_hba pointer.
2570 * @ndlp: pointer to fcp target node.
2571 * @lun: the fc lun for setting oas state.
2572 * @oas_state: the oas state to be set to the lun.
2574 * Returns:
2575 * SUCCESS : 0
2576 * -EPERM OAS is not enabled or not supported by this port.
2579 static size_t
2580 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2581 uint8_t tgt_wwpn[], uint64_t lun, uint32_t oas_state)
2584 int rc = 0;
2586 if (!phba->cfg_fof)
2587 return -EPERM;
2589 if (oas_state) {
2590 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
2591 (struct lpfc_name *)tgt_wwpn, lun))
2592 rc = -ENOMEM;
2593 } else {
2594 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
2595 (struct lpfc_name *)tgt_wwpn, lun);
2597 return rc;
2602 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized
2603 * Access Storage (OAS) operations.
2604 * @phba: lpfc_hba pointer.
2605 * @vpt_wwpn: wwpn of the vport associated with the returned lun
2606 * @tgt_wwpn: wwpn of the target associated with the returned lun
2607 * @lun_status: status of the lun returned lun
2609 * Returns the first or next lun enabled for OAS operations for the vport/target
2610 * specified. If a lun is found, its vport wwpn, target wwpn and status is
2611 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned.
2613 * Return:
2614 * lun that is OAS enabled for the vport/target
2615 * NOT_OAS_ENABLED_LUN when no oas enabled lun found.
2617 static uint64_t
2618 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2619 uint8_t tgt_wwpn[], uint32_t *lun_status)
2621 uint64_t found_lun;
2623 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn)
2624 return NOT_OAS_ENABLED_LUN;
2625 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *)
2626 phba->sli4_hba.oas_next_vpt_wwpn,
2627 (struct lpfc_name *)
2628 phba->sli4_hba.oas_next_tgt_wwpn,
2629 &phba->sli4_hba.oas_next_lun,
2630 (struct lpfc_name *)vpt_wwpn,
2631 (struct lpfc_name *)tgt_wwpn,
2632 &found_lun, lun_status))
2633 return found_lun;
2634 else
2635 return NOT_OAS_ENABLED_LUN;
2639 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations
2640 * @phba: lpfc_hba pointer.
2641 * @vpt_wwpn: vport wwpn by reference.
2642 * @tgt_wwpn: target wwpn by reference.
2643 * @lun: the fc lun for setting oas state.
2644 * @oas_state: the oas state to be set to the oas_lun.
2646 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE)
2647 * a lun for OAS operations.
2649 * Return:
2650 * SUCCESS: 0
2651 * -ENOMEM: failed to enable an lun for OAS operations
2652 * -EPERM: OAS is not enabled
2654 static ssize_t
2655 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
2656 uint8_t tgt_wwpn[], uint64_t lun,
2657 uint32_t oas_state)
2660 int rc;
2662 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun,
2663 oas_state);
2664 return rc;
2668 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target
2669 * @dev: class device that is converted into a Scsi_host.
2670 * @attr: device attribute, not used.
2671 * @buf: buffer for passing information.
2673 * This routine returns a lun enabled for OAS each time the function
2674 * is called.
2676 * Returns:
2677 * SUCCESS: size of formatted string.
2678 * -EFAULT: target or vport wwpn was not set properly.
2679 * -EPERM: oas is not enabled.
2681 static ssize_t
2682 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr,
2683 char *buf)
2685 struct Scsi_Host *shost = class_to_shost(dev);
2686 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2688 uint64_t oas_lun;
2689 int len = 0;
2691 if (!phba->cfg_fof)
2692 return -EPERM;
2694 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
2695 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT))
2696 return -EFAULT;
2698 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
2699 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET))
2700 return -EFAULT;
2702 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn,
2703 phba->cfg_oas_tgt_wwpn,
2704 &phba->cfg_oas_lun_status);
2705 if (oas_lun != NOT_OAS_ENABLED_LUN)
2706 phba->cfg_oas_flags |= OAS_LUN_VALID;
2708 len += snprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
2710 return len;
2714 * lpfc_oas_lun_store - Sets the OAS state for lun
2715 * @dev: class device that is converted into a Scsi_host.
2716 * @attr: device attribute, not used.
2717 * @buf: buffer for passing information.
2719 * This function sets the OAS state for lun. Before this function is called,
2720 * the vport wwpn, target wwpn, and oas state need to be set.
2722 * Returns:
2723 * SUCCESS: size of formatted string.
2724 * -EFAULT: target or vport wwpn was not set properly.
2725 * -EPERM: oas is not enabled.
2726 * size of formatted string.
2728 static ssize_t
2729 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr,
2730 const char *buf, size_t count)
2732 struct Scsi_Host *shost = class_to_shost(dev);
2733 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2734 uint64_t scsi_lun;
2735 ssize_t rc;
2737 if (!phba->cfg_fof)
2738 return -EPERM;
2740 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
2741 return -EFAULT;
2743 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
2744 return -EFAULT;
2746 if (!isdigit(buf[0]))
2747 return -EINVAL;
2749 if (sscanf(buf, "0x%llx", &scsi_lun) != 1)
2750 return -EINVAL;
2752 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2753 "3372 Try to set vport 0x%llx target 0x%llx lun:%lld "
2754 "with oas set to %d\n",
2755 wwn_to_u64(phba->cfg_oas_vpt_wwpn),
2756 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun,
2757 phba->cfg_oas_lun_state);
2759 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn,
2760 phba->cfg_oas_tgt_wwpn, scsi_lun,
2761 phba->cfg_oas_lun_state);
2763 if (rc)
2764 return rc;
2766 return count;
2768 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR,
2769 lpfc_oas_lun_show, lpfc_oas_lun_store);
2771 static int lpfc_poll = 0;
2772 module_param(lpfc_poll, int, S_IRUGO);
2773 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
2774 " 0 - none,"
2775 " 1 - poll with interrupts enabled"
2776 " 3 - poll and disable FCP ring interrupts");
2778 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
2779 lpfc_poll_show, lpfc_poll_store);
2781 int lpfc_sli_mode = 0;
2782 module_param(lpfc_sli_mode, int, S_IRUGO);
2783 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
2784 " 0 - auto (SLI-3 if supported),"
2785 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
2786 " 3 - select SLI-3");
2788 int lpfc_enable_npiv = 1;
2789 module_param(lpfc_enable_npiv, int, S_IRUGO);
2790 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
2791 lpfc_param_show(enable_npiv);
2792 lpfc_param_init(enable_npiv, 1, 0, 1);
2793 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
2795 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
2796 "FCF Fast failover=1 Priority failover=2");
2798 int lpfc_enable_rrq = 2;
2799 module_param(lpfc_enable_rrq, int, S_IRUGO);
2800 MODULE_PARM_DESC(lpfc_enable_rrq, "Enable RRQ functionality");
2801 lpfc_param_show(enable_rrq);
2803 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures
2804 # 0x0 = disabled, XRI/OXID use not tracked.
2805 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent.
2806 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent.
2808 lpfc_param_init(enable_rrq, 2, 0, 2);
2809 static DEVICE_ATTR(lpfc_enable_rrq, S_IRUGO, lpfc_enable_rrq_show, NULL);
2812 # lpfc_suppress_link_up: Bring link up at initialization
2813 # 0x0 = bring link up (issue MBX_INIT_LINK)
2814 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
2815 # 0x2 = never bring up link
2816 # Default value is 0.
2818 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
2819 LPFC_DELAY_INIT_LINK_INDEFINITELY,
2820 "Suppress Link Up at initialization");
2822 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
2823 # 1 - (1024)
2824 # 2 - (2048)
2825 # 3 - (3072)
2826 # 4 - (4096)
2827 # 5 - (5120)
2829 static ssize_t
2830 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2832 struct Scsi_Host *shost = class_to_shost(dev);
2833 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2835 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
2838 static DEVICE_ATTR(iocb_hw, S_IRUGO,
2839 lpfc_iocb_hw_show, NULL);
2840 static ssize_t
2841 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
2843 struct Scsi_Host *shost = class_to_shost(dev);
2844 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2846 return snprintf(buf, PAGE_SIZE, "%d\n",
2847 phba->sli.ring[LPFC_ELS_RING].txq_max);
2850 static DEVICE_ATTR(txq_hw, S_IRUGO,
2851 lpfc_txq_hw_show, NULL);
2852 static ssize_t
2853 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
2854 char *buf)
2856 struct Scsi_Host *shost = class_to_shost(dev);
2857 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
2859 return snprintf(buf, PAGE_SIZE, "%d\n",
2860 phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
2863 static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
2864 lpfc_txcmplq_hw_show, NULL);
2866 int lpfc_iocb_cnt = 2;
2867 module_param(lpfc_iocb_cnt, int, S_IRUGO);
2868 MODULE_PARM_DESC(lpfc_iocb_cnt,
2869 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
2870 lpfc_param_show(iocb_cnt);
2871 lpfc_param_init(iocb_cnt, 2, 1, 5);
2872 static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO,
2873 lpfc_iocb_cnt_show, NULL);
2876 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
2877 # until the timer expires. Value range is [0,255]. Default value is 30.
2879 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2880 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
2881 module_param(lpfc_nodev_tmo, int, 0);
2882 MODULE_PARM_DESC(lpfc_nodev_tmo,
2883 "Seconds driver will hold I/O waiting "
2884 "for a device to come back");
2887 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
2888 * @dev: class converted to a Scsi_host structure.
2889 * @attr: device attribute, not used.
2890 * @buf: on return contains the dev loss timeout in decimal.
2892 * Returns: size of formatted string.
2894 static ssize_t
2895 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
2896 char *buf)
2898 struct Scsi_Host *shost = class_to_shost(dev);
2899 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2901 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
2905 * lpfc_nodev_tmo_init - Set the hba nodev timeout value
2906 * @vport: lpfc vport structure pointer.
2907 * @val: contains the nodev timeout value.
2909 * Description:
2910 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
2911 * a kernel error message is printed and zero is returned.
2912 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2913 * Otherwise nodev tmo is set to the default value.
2915 * Returns:
2916 * zero if already set or if val is in range
2917 * -EINVAL val out of range
2919 static int
2920 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
2922 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
2923 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
2924 if (val != LPFC_DEF_DEVLOSS_TMO)
2925 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2926 "0407 Ignoring nodev_tmo module "
2927 "parameter because devloss_tmo is "
2928 "set.\n");
2929 return 0;
2932 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2933 vport->cfg_nodev_tmo = val;
2934 vport->cfg_devloss_tmo = val;
2935 return 0;
2937 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2938 "0400 lpfc_nodev_tmo attribute cannot be set to"
2939 " %d, allowed range is [%d, %d]\n",
2940 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
2941 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
2942 return -EINVAL;
2946 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
2947 * @vport: lpfc vport structure pointer.
2949 * Description:
2950 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
2952 static void
2953 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
2955 struct Scsi_Host *shost;
2956 struct lpfc_nodelist *ndlp;
2958 shost = lpfc_shost_from_vport(vport);
2959 spin_lock_irq(shost->host_lock);
2960 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
2961 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
2962 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
2963 spin_unlock_irq(shost->host_lock);
2967 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
2968 * @vport: lpfc vport structure pointer.
2969 * @val: contains the tmo value.
2971 * Description:
2972 * If the devloss tmo is already set or the vport dev loss tmo has changed
2973 * then a kernel error message is printed and zero is returned.
2974 * Else if val is in range then nodev tmo and devloss tmo are set to val.
2975 * Otherwise nodev tmo is set to the default value.
2977 * Returns:
2978 * zero if already set or if val is in range
2979 * -EINVAL val out of range
2981 static int
2982 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
2984 if (vport->dev_loss_tmo_changed ||
2985 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
2986 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
2987 "0401 Ignoring change to nodev_tmo "
2988 "because devloss_tmo is set.\n");
2989 return 0;
2991 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
2992 vport->cfg_nodev_tmo = val;
2993 vport->cfg_devloss_tmo = val;
2995 * For compat: set the fc_host dev loss so new rports
2996 * will get the value.
2998 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
2999 lpfc_update_rport_devloss_tmo(vport);
3000 return 0;
3002 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3003 "0403 lpfc_nodev_tmo attribute cannot be set to"
3004 "%d, allowed range is [%d, %d]\n",
3005 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3006 return -EINVAL;
3009 lpfc_vport_param_store(nodev_tmo)
3011 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
3012 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
3015 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
3016 # disappear until the timer expires. Value range is [0,255]. Default
3017 # value is 30.
3019 module_param(lpfc_devloss_tmo, int, S_IRUGO);
3020 MODULE_PARM_DESC(lpfc_devloss_tmo,
3021 "Seconds driver will hold I/O waiting "
3022 "for a device to come back");
3023 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
3024 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
3025 lpfc_vport_param_show(devloss_tmo)
3028 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
3029 * @vport: lpfc vport structure pointer.
3030 * @val: contains the tmo value.
3032 * Description:
3033 * If val is in a valid range then set the vport nodev tmo,
3034 * devloss tmo, also set the vport dev loss tmo changed flag.
3035 * Else a kernel error message is printed.
3037 * Returns:
3038 * zero if val is in range
3039 * -EINVAL val out of range
3041 static int
3042 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
3044 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
3045 vport->cfg_nodev_tmo = val;
3046 vport->cfg_devloss_tmo = val;
3047 vport->dev_loss_tmo_changed = 1;
3048 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
3049 lpfc_update_rport_devloss_tmo(vport);
3050 return 0;
3053 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3054 "0404 lpfc_devloss_tmo attribute cannot be set to"
3055 " %d, allowed range is [%d, %d]\n",
3056 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
3057 return -EINVAL;
3060 lpfc_vport_param_store(devloss_tmo)
3061 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
3062 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
3065 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
3066 # deluged with LOTS of information.
3067 # You can set a bit mask to record specific types of verbose messages:
3068 # See lpfc_logmsh.h for definitions.
3070 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
3071 "Verbose logging bit-mask");
3074 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
3075 # objects that have been registered with the nameserver after login.
3077 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1,
3078 "Deregister nameserver objects before LOGO");
3081 # lun_queue_depth: This parameter is used to limit the number of outstanding
3082 # commands per FCP LUN. Value range is [1,512]. Default value is 30.
3083 # If this parameter value is greater than 1/8th the maximum number of exchanges
3084 # supported by the HBA port, then the lun queue depth will be reduced to
3085 # 1/8th the maximum number of exchanges.
3087 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512,
3088 "Max number of FCP commands we can queue to a specific LUN");
3091 # tgt_queue_depth: This parameter is used to limit the number of outstanding
3092 # commands per target port. Value range is [10,65535]. Default value is 65535.
3094 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
3095 "Max number of FCP commands we can queue to a specific target port");
3098 # hba_queue_depth: This parameter is used to limit the number of outstanding
3099 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
3100 # value is greater than the maximum number of exchanges supported by the HBA,
3101 # then maximum number of exchanges supported by the HBA is used to determine
3102 # the hba_queue_depth.
3104 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
3105 "Max number of FCP commands we can queue to a lpfc HBA");
3108 # peer_port_login: This parameter allows/prevents logins
3109 # between peer ports hosted on the same physical port.
3110 # When this parameter is set 0 peer ports of same physical port
3111 # are not allowed to login to each other.
3112 # When this parameter is set 1 peer ports of same physical port
3113 # are allowed to login to each other.
3114 # Default value of this parameter is 0.
3116 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
3117 "Allow peer ports on the same physical port to login to each "
3118 "other.");
3121 # restrict_login: This parameter allows/prevents logins
3122 # between Virtual Ports and remote initiators.
3123 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
3124 # other initiators and will attempt to PLOGI all remote ports.
3125 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
3126 # remote ports and will not attempt to PLOGI to other initiators.
3127 # This parameter does not restrict to the physical port.
3128 # This parameter does not restrict logins to Fabric resident remote ports.
3129 # Default value of this parameter is 1.
3131 static int lpfc_restrict_login = 1;
3132 module_param(lpfc_restrict_login, int, S_IRUGO);
3133 MODULE_PARM_DESC(lpfc_restrict_login,
3134 "Restrict virtual ports login to remote initiators.");
3135 lpfc_vport_param_show(restrict_login);
3138 * lpfc_restrict_login_init - Set the vport restrict login flag
3139 * @vport: lpfc vport structure pointer.
3140 * @val: contains the restrict login value.
3142 * Description:
3143 * If val is not in a valid range then log a kernel error message and set
3144 * the vport restrict login to one.
3145 * If the port type is physical clear the restrict login flag and return.
3146 * Else set the restrict login flag to val.
3148 * Returns:
3149 * zero if val is in range
3150 * -EINVAL val out of range
3152 static int
3153 lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
3155 if (val < 0 || val > 1) {
3156 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3157 "0422 lpfc_restrict_login attribute cannot "
3158 "be set to %d, allowed range is [0, 1]\n",
3159 val);
3160 vport->cfg_restrict_login = 1;
3161 return -EINVAL;
3163 if (vport->port_type == LPFC_PHYSICAL_PORT) {
3164 vport->cfg_restrict_login = 0;
3165 return 0;
3167 vport->cfg_restrict_login = val;
3168 return 0;
3172 * lpfc_restrict_login_set - Set the vport restrict login flag
3173 * @vport: lpfc vport structure pointer.
3174 * @val: contains the restrict login value.
3176 * Description:
3177 * If val is not in a valid range then log a kernel error message and set
3178 * the vport restrict login to one.
3179 * If the port type is physical and the val is not zero log a kernel
3180 * error message, clear the restrict login flag and return zero.
3181 * Else set the restrict login flag to val.
3183 * Returns:
3184 * zero if val is in range
3185 * -EINVAL val out of range
3187 static int
3188 lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
3190 if (val < 0 || val > 1) {
3191 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3192 "0425 lpfc_restrict_login attribute cannot "
3193 "be set to %d, allowed range is [0, 1]\n",
3194 val);
3195 vport->cfg_restrict_login = 1;
3196 return -EINVAL;
3198 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
3199 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3200 "0468 lpfc_restrict_login must be 0 for "
3201 "Physical ports.\n");
3202 vport->cfg_restrict_login = 0;
3203 return 0;
3205 vport->cfg_restrict_login = val;
3206 return 0;
3208 lpfc_vport_param_store(restrict_login);
3209 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
3210 lpfc_restrict_login_show, lpfc_restrict_login_store);
3213 # Some disk devices have a "select ID" or "select Target" capability.
3214 # From a protocol standpoint "select ID" usually means select the
3215 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
3216 # annex" which contains a table that maps a "select ID" (a number
3217 # between 0 and 7F) to an ALPA. By default, for compatibility with
3218 # older drivers, the lpfc driver scans this table from low ALPA to high
3219 # ALPA.
3221 # Turning on the scan-down variable (on = 1, off = 0) will
3222 # cause the lpfc driver to use an inverted table, effectively
3223 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
3225 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
3226 # and will not work across a fabric. Also this parameter will take
3227 # effect only in the case when ALPA map is not available.)
3229 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
3230 "Start scanning for devices from highest ALPA to lowest");
3233 # lpfc_topology: link topology for init link
3234 # 0x0 = attempt loop mode then point-to-point
3235 # 0x01 = internal loopback mode
3236 # 0x02 = attempt point-to-point mode only
3237 # 0x04 = attempt loop mode only
3238 # 0x06 = attempt point-to-point mode then loop
3239 # Set point-to-point mode if you want to run as an N_Port.
3240 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
3241 # Default value is 0.
3245 * lpfc_topology_set - Set the adapters topology field
3246 * @phba: lpfc_hba pointer.
3247 * @val: topology value.
3249 * Description:
3250 * If val is in a valid range then set the adapter's topology field and
3251 * issue a lip; if the lip fails reset the topology to the old value.
3253 * If the value is not in range log a kernel error message and return an error.
3255 * Returns:
3256 * zero if val is in range and lip okay
3257 * non-zero return value from lpfc_issue_lip()
3258 * -EINVAL val out of range
3260 static ssize_t
3261 lpfc_topology_store(struct device *dev, struct device_attribute *attr,
3262 const char *buf, size_t count)
3264 struct Scsi_Host *shost = class_to_shost(dev);
3265 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3266 struct lpfc_hba *phba = vport->phba;
3267 int val = 0;
3268 int nolip = 0;
3269 const char *val_buf = buf;
3270 int err;
3271 uint32_t prev_val;
3273 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
3274 nolip = 1;
3275 val_buf = &buf[strlen("nolip ")];
3278 if (!isdigit(val_buf[0]))
3279 return -EINVAL;
3280 if (sscanf(val_buf, "%i", &val) != 1)
3281 return -EINVAL;
3283 if (val >= 0 && val <= 6) {
3284 prev_val = phba->cfg_topology;
3285 phba->cfg_topology = val;
3286 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
3287 val == 4) {
3288 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3289 "3113 Loop mode not supported at speed %d\n",
3290 phba->cfg_link_speed);
3291 phba->cfg_topology = prev_val;
3292 return -EINVAL;
3294 if (nolip)
3295 return strlen(buf);
3297 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3298 "3054 lpfc_topology changed from %d to %d\n",
3299 prev_val, val);
3300 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4)
3301 phba->fc_topology_changed = 1;
3302 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3303 if (err) {
3304 phba->cfg_topology = prev_val;
3305 return -EINVAL;
3306 } else
3307 return strlen(buf);
3309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3310 "%d:0467 lpfc_topology attribute cannot be set to %d, "
3311 "allowed range is [0, 6]\n",
3312 phba->brd_no, val);
3313 return -EINVAL;
3315 static int lpfc_topology = 0;
3316 module_param(lpfc_topology, int, S_IRUGO);
3317 MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
3318 lpfc_param_show(topology)
3319 lpfc_param_init(topology, 0, 0, 6)
3320 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
3321 lpfc_topology_show, lpfc_topology_store);
3324 * lpfc_static_vport_show: Read callback function for
3325 * lpfc_static_vport sysfs file.
3326 * @dev: Pointer to class device object.
3327 * @attr: device attribute structure.
3328 * @buf: Data buffer.
3330 * This function is the read call back function for
3331 * lpfc_static_vport sysfs file. The lpfc_static_vport
3332 * sysfs file report the mageability of the vport.
3334 static ssize_t
3335 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
3336 char *buf)
3338 struct Scsi_Host *shost = class_to_shost(dev);
3339 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3340 if (vport->vport_flag & STATIC_VPORT)
3341 sprintf(buf, "1\n");
3342 else
3343 sprintf(buf, "0\n");
3345 return strlen(buf);
3349 * Sysfs attribute to control the statistical data collection.
3351 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
3352 lpfc_static_vport_show, NULL);
3355 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
3356 * @dev: Pointer to class device.
3357 * @buf: Data buffer.
3358 * @count: Size of the data buffer.
3360 * This function get called when an user write to the lpfc_stat_data_ctrl
3361 * sysfs file. This function parse the command written to the sysfs file
3362 * and take appropriate action. These commands are used for controlling
3363 * driver statistical data collection.
3364 * Following are the command this function handles.
3366 * setbucket <bucket_type> <base> <step>
3367 * = Set the latency buckets.
3368 * destroybucket = destroy all the buckets.
3369 * start = start data collection
3370 * stop = stop data collection
3371 * reset = reset the collected data
3373 static ssize_t
3374 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
3375 const char *buf, size_t count)
3377 struct Scsi_Host *shost = class_to_shost(dev);
3378 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3379 struct lpfc_hba *phba = vport->phba;
3380 #define LPFC_MAX_DATA_CTRL_LEN 1024
3381 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
3382 unsigned long i;
3383 char *str_ptr, *token;
3384 struct lpfc_vport **vports;
3385 struct Scsi_Host *v_shost;
3386 char *bucket_type_str, *base_str, *step_str;
3387 unsigned long base, step, bucket_type;
3389 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
3390 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
3391 return -EINVAL;
3393 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN);
3394 str_ptr = &bucket_data[0];
3395 /* Ignore this token - this is command token */
3396 token = strsep(&str_ptr, "\t ");
3397 if (!token)
3398 return -EINVAL;
3400 bucket_type_str = strsep(&str_ptr, "\t ");
3401 if (!bucket_type_str)
3402 return -EINVAL;
3404 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
3405 bucket_type = LPFC_LINEAR_BUCKET;
3406 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
3407 bucket_type = LPFC_POWER2_BUCKET;
3408 else
3409 return -EINVAL;
3411 base_str = strsep(&str_ptr, "\t ");
3412 if (!base_str)
3413 return -EINVAL;
3414 base = simple_strtoul(base_str, NULL, 0);
3416 step_str = strsep(&str_ptr, "\t ");
3417 if (!step_str)
3418 return -EINVAL;
3419 step = simple_strtoul(step_str, NULL, 0);
3420 if (!step)
3421 return -EINVAL;
3423 /* Block the data collection for every vport */
3424 vports = lpfc_create_vport_work_array(phba);
3425 if (vports == NULL)
3426 return -ENOMEM;
3428 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3429 v_shost = lpfc_shost_from_vport(vports[i]);
3430 spin_lock_irq(v_shost->host_lock);
3431 /* Block and reset data collection */
3432 vports[i]->stat_data_blocked = 1;
3433 if (vports[i]->stat_data_enabled)
3434 lpfc_vport_reset_stat_data(vports[i]);
3435 spin_unlock_irq(v_shost->host_lock);
3438 /* Set the bucket attributes */
3439 phba->bucket_type = bucket_type;
3440 phba->bucket_base = base;
3441 phba->bucket_step = step;
3443 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3444 v_shost = lpfc_shost_from_vport(vports[i]);
3446 /* Unblock data collection */
3447 spin_lock_irq(v_shost->host_lock);
3448 vports[i]->stat_data_blocked = 0;
3449 spin_unlock_irq(v_shost->host_lock);
3451 lpfc_destroy_vport_work_array(phba, vports);
3452 return strlen(buf);
3455 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
3456 vports = lpfc_create_vport_work_array(phba);
3457 if (vports == NULL)
3458 return -ENOMEM;
3460 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3461 v_shost = lpfc_shost_from_vport(vports[i]);
3462 spin_lock_irq(shost->host_lock);
3463 vports[i]->stat_data_blocked = 1;
3464 lpfc_free_bucket(vport);
3465 vport->stat_data_enabled = 0;
3466 vports[i]->stat_data_blocked = 0;
3467 spin_unlock_irq(shost->host_lock);
3469 lpfc_destroy_vport_work_array(phba, vports);
3470 phba->bucket_type = LPFC_NO_BUCKET;
3471 phba->bucket_base = 0;
3472 phba->bucket_step = 0;
3473 return strlen(buf);
3476 if (!strncmp(buf, "start", strlen("start"))) {
3477 /* If no buckets configured return error */
3478 if (phba->bucket_type == LPFC_NO_BUCKET)
3479 return -EINVAL;
3480 spin_lock_irq(shost->host_lock);
3481 if (vport->stat_data_enabled) {
3482 spin_unlock_irq(shost->host_lock);
3483 return strlen(buf);
3485 lpfc_alloc_bucket(vport);
3486 vport->stat_data_enabled = 1;
3487 spin_unlock_irq(shost->host_lock);
3488 return strlen(buf);
3491 if (!strncmp(buf, "stop", strlen("stop"))) {
3492 spin_lock_irq(shost->host_lock);
3493 if (vport->stat_data_enabled == 0) {
3494 spin_unlock_irq(shost->host_lock);
3495 return strlen(buf);
3497 lpfc_free_bucket(vport);
3498 vport->stat_data_enabled = 0;
3499 spin_unlock_irq(shost->host_lock);
3500 return strlen(buf);
3503 if (!strncmp(buf, "reset", strlen("reset"))) {
3504 if ((phba->bucket_type == LPFC_NO_BUCKET)
3505 || !vport->stat_data_enabled)
3506 return strlen(buf);
3507 spin_lock_irq(shost->host_lock);
3508 vport->stat_data_blocked = 1;
3509 lpfc_vport_reset_stat_data(vport);
3510 vport->stat_data_blocked = 0;
3511 spin_unlock_irq(shost->host_lock);
3512 return strlen(buf);
3514 return -EINVAL;
3519 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
3520 * @dev: Pointer to class device object.
3521 * @buf: Data buffer.
3523 * This function is the read call back function for
3524 * lpfc_stat_data_ctrl sysfs file. This function report the
3525 * current statistical data collection state.
3527 static ssize_t
3528 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
3529 char *buf)
3531 struct Scsi_Host *shost = class_to_shost(dev);
3532 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3533 struct lpfc_hba *phba = vport->phba;
3534 int index = 0;
3535 int i;
3536 char *bucket_type;
3537 unsigned long bucket_value;
3539 switch (phba->bucket_type) {
3540 case LPFC_LINEAR_BUCKET:
3541 bucket_type = "linear";
3542 break;
3543 case LPFC_POWER2_BUCKET:
3544 bucket_type = "power2";
3545 break;
3546 default:
3547 bucket_type = "No Bucket";
3548 break;
3551 sprintf(&buf[index], "Statistical Data enabled :%d, "
3552 "blocked :%d, Bucket type :%s, Bucket base :%d,"
3553 " Bucket step :%d\nLatency Ranges :",
3554 vport->stat_data_enabled, vport->stat_data_blocked,
3555 bucket_type, phba->bucket_base, phba->bucket_step);
3556 index = strlen(buf);
3557 if (phba->bucket_type != LPFC_NO_BUCKET) {
3558 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
3559 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
3560 bucket_value = phba->bucket_base +
3561 phba->bucket_step * i;
3562 else
3563 bucket_value = phba->bucket_base +
3564 (1 << i) * phba->bucket_step;
3566 if (index + 10 > PAGE_SIZE)
3567 break;
3568 sprintf(&buf[index], "%08ld ", bucket_value);
3569 index = strlen(buf);
3572 sprintf(&buf[index], "\n");
3573 return strlen(buf);
3577 * Sysfs attribute to control the statistical data collection.
3579 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
3580 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
3583 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
3587 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
3588 * for each target.
3590 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
3591 #define MAX_STAT_DATA_SIZE_PER_TARGET \
3592 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
3596 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
3597 * @filp: sysfs file
3598 * @kobj: Pointer to the kernel object
3599 * @bin_attr: Attribute object
3600 * @buff: Buffer pointer
3601 * @off: File offset
3602 * @count: Buffer size
3604 * This function is the read call back function for lpfc_drvr_stat_data
3605 * sysfs file. This function export the statistical data to user
3606 * applications.
3608 static ssize_t
3609 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
3610 struct bin_attribute *bin_attr,
3611 char *buf, loff_t off, size_t count)
3613 struct device *dev = container_of(kobj, struct device,
3614 kobj);
3615 struct Scsi_Host *shost = class_to_shost(dev);
3616 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3617 struct lpfc_hba *phba = vport->phba;
3618 int i = 0, index = 0;
3619 unsigned long nport_index;
3620 struct lpfc_nodelist *ndlp = NULL;
3621 nport_index = (unsigned long)off /
3622 MAX_STAT_DATA_SIZE_PER_TARGET;
3624 if (!vport->stat_data_enabled || vport->stat_data_blocked
3625 || (phba->bucket_type == LPFC_NO_BUCKET))
3626 return 0;
3628 spin_lock_irq(shost->host_lock);
3629 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
3630 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
3631 continue;
3633 if (nport_index > 0) {
3634 nport_index--;
3635 continue;
3638 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
3639 > count)
3640 break;
3642 if (!ndlp->lat_data)
3643 continue;
3645 /* Print the WWN */
3646 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
3647 ndlp->nlp_portname.u.wwn[0],
3648 ndlp->nlp_portname.u.wwn[1],
3649 ndlp->nlp_portname.u.wwn[2],
3650 ndlp->nlp_portname.u.wwn[3],
3651 ndlp->nlp_portname.u.wwn[4],
3652 ndlp->nlp_portname.u.wwn[5],
3653 ndlp->nlp_portname.u.wwn[6],
3654 ndlp->nlp_portname.u.wwn[7]);
3656 index = strlen(buf);
3658 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
3659 sprintf(&buf[index], "%010u,",
3660 ndlp->lat_data[i].cmd_count);
3661 index = strlen(buf);
3663 sprintf(&buf[index], "\n");
3664 index = strlen(buf);
3666 spin_unlock_irq(shost->host_lock);
3667 return index;
3670 static struct bin_attribute sysfs_drvr_stat_data_attr = {
3671 .attr = {
3672 .name = "lpfc_drvr_stat_data",
3673 .mode = S_IRUSR,
3675 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
3676 .read = sysfs_drvr_stat_data_read,
3677 .write = NULL,
3681 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
3682 # connection.
3683 # Value range is [0,16]. Default value is 0.
3686 * lpfc_link_speed_set - Set the adapters link speed
3687 * @phba: lpfc_hba pointer.
3688 * @val: link speed value.
3690 * Description:
3691 * If val is in a valid range then set the adapter's link speed field and
3692 * issue a lip; if the lip fails reset the link speed to the old value.
3694 * Notes:
3695 * If the value is not in range log a kernel error message and return an error.
3697 * Returns:
3698 * zero if val is in range and lip okay.
3699 * non-zero return value from lpfc_issue_lip()
3700 * -EINVAL val out of range
3702 static ssize_t
3703 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
3704 const char *buf, size_t count)
3706 struct Scsi_Host *shost = class_to_shost(dev);
3707 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3708 struct lpfc_hba *phba = vport->phba;
3709 int val = LPFC_USER_LINK_SPEED_AUTO;
3710 int nolip = 0;
3711 const char *val_buf = buf;
3712 int err;
3713 uint32_t prev_val;
3715 if (!strncmp(buf, "nolip ", strlen("nolip "))) {
3716 nolip = 1;
3717 val_buf = &buf[strlen("nolip ")];
3720 if (!isdigit(val_buf[0]))
3721 return -EINVAL;
3722 if (sscanf(val_buf, "%i", &val) != 1)
3723 return -EINVAL;
3725 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3726 "3055 lpfc_link_speed changed from %d to %d %s\n",
3727 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
3729 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
3730 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
3731 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
3732 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
3733 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
3734 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb))) {
3735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3736 "2879 lpfc_link_speed attribute cannot be set "
3737 "to %d. Speed is not supported by this port.\n",
3738 val);
3739 return -EINVAL;
3741 if (val == LPFC_USER_LINK_SPEED_16G &&
3742 phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
3743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3744 "3112 lpfc_link_speed attribute cannot be set "
3745 "to %d. Speed is not supported in loop mode.\n",
3746 val);
3747 return -EINVAL;
3749 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3750 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3751 prev_val = phba->cfg_link_speed;
3752 phba->cfg_link_speed = val;
3753 if (nolip)
3754 return strlen(buf);
3756 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
3757 if (err) {
3758 phba->cfg_link_speed = prev_val;
3759 return -EINVAL;
3760 } else
3761 return strlen(buf);
3763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3764 "0469 lpfc_link_speed attribute cannot be set to %d, "
3765 "allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val);
3766 return -EINVAL;
3769 static int lpfc_link_speed = 0;
3770 module_param(lpfc_link_speed, int, S_IRUGO);
3771 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
3772 lpfc_param_show(link_speed)
3775 * lpfc_link_speed_init - Set the adapters link speed
3776 * @phba: lpfc_hba pointer.
3777 * @val: link speed value.
3779 * Description:
3780 * If val is in a valid range then set the adapter's link speed field.
3782 * Notes:
3783 * If the value is not in range log a kernel error message, clear the link
3784 * speed and return an error.
3786 * Returns:
3787 * zero if val saved.
3788 * -EINVAL val out of range
3790 static int
3791 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
3793 if (val == LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
3794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3795 "3111 lpfc_link_speed of %d cannot "
3796 "support loop mode, setting topology to default.\n",
3797 val);
3798 phba->cfg_topology = 0;
3800 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
3801 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
3802 phba->cfg_link_speed = val;
3803 return 0;
3805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3806 "0405 lpfc_link_speed attribute cannot "
3807 "be set to %d, allowed values are "
3808 "["LPFC_LINK_SPEED_STRING"]\n", val);
3809 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
3810 return -EINVAL;
3813 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
3814 lpfc_link_speed_show, lpfc_link_speed_store);
3817 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
3818 # 0 = aer disabled or not supported
3819 # 1 = aer supported and enabled (default)
3820 # Value range is [0,1]. Default value is 1.
3824 * lpfc_aer_support_store - Set the adapter for aer support
3826 * @dev: class device that is converted into a Scsi_host.
3827 * @attr: device attribute, not used.
3828 * @buf: containing enable or disable aer flag.
3829 * @count: unused variable.
3831 * Description:
3832 * If the val is 1 and currently the device's AER capability was not
3833 * enabled, invoke the kernel's enable AER helper routine, trying to
3834 * enable the device's AER capability. If the helper routine enabling
3835 * AER returns success, update the device's cfg_aer_support flag to
3836 * indicate AER is supported by the device; otherwise, if the device
3837 * AER capability is already enabled to support AER, then do nothing.
3839 * If the val is 0 and currently the device's AER support was enabled,
3840 * invoke the kernel's disable AER helper routine. After that, update
3841 * the device's cfg_aer_support flag to indicate AER is not supported
3842 * by the device; otherwise, if the device AER capability is already
3843 * disabled from supporting AER, then do nothing.
3845 * Returns:
3846 * length of the buf on success if val is in range the intended mode
3847 * is supported.
3848 * -EINVAL if val out of range or intended mode is not supported.
3850 static ssize_t
3851 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
3852 const char *buf, size_t count)
3854 struct Scsi_Host *shost = class_to_shost(dev);
3855 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
3856 struct lpfc_hba *phba = vport->phba;
3857 int val = 0, rc = -EINVAL;
3859 if (!isdigit(buf[0]))
3860 return -EINVAL;
3861 if (sscanf(buf, "%i", &val) != 1)
3862 return -EINVAL;
3864 switch (val) {
3865 case 0:
3866 if (phba->hba_flag & HBA_AER_ENABLED) {
3867 rc = pci_disable_pcie_error_reporting(phba->pcidev);
3868 if (!rc) {
3869 spin_lock_irq(&phba->hbalock);
3870 phba->hba_flag &= ~HBA_AER_ENABLED;
3871 spin_unlock_irq(&phba->hbalock);
3872 phba->cfg_aer_support = 0;
3873 rc = strlen(buf);
3874 } else
3875 rc = -EPERM;
3876 } else {
3877 phba->cfg_aer_support = 0;
3878 rc = strlen(buf);
3880 break;
3881 case 1:
3882 if (!(phba->hba_flag & HBA_AER_ENABLED)) {
3883 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3884 if (!rc) {
3885 spin_lock_irq(&phba->hbalock);
3886 phba->hba_flag |= HBA_AER_ENABLED;
3887 spin_unlock_irq(&phba->hbalock);
3888 phba->cfg_aer_support = 1;
3889 rc = strlen(buf);
3890 } else
3891 rc = -EPERM;
3892 } else {
3893 phba->cfg_aer_support = 1;
3894 rc = strlen(buf);
3896 break;
3897 default:
3898 rc = -EINVAL;
3899 break;
3901 return rc;
3904 static int lpfc_aer_support = 1;
3905 module_param(lpfc_aer_support, int, S_IRUGO);
3906 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
3907 lpfc_param_show(aer_support)
3910 * lpfc_aer_support_init - Set the initial adapters aer support flag
3911 * @phba: lpfc_hba pointer.
3912 * @val: enable aer or disable aer flag.
3914 * Description:
3915 * If val is in a valid range [0,1], then set the adapter's initial
3916 * cfg_aer_support field. It will be up to the driver's probe_one
3917 * routine to determine whether the device's AER support can be set
3918 * or not.
3920 * Notes:
3921 * If the value is not in range log a kernel error message, and
3922 * choose the default value of setting AER support and return.
3924 * Returns:
3925 * zero if val saved.
3926 * -EINVAL val out of range
3928 static int
3929 lpfc_aer_support_init(struct lpfc_hba *phba, int val)
3931 if (val == 0 || val == 1) {
3932 phba->cfg_aer_support = val;
3933 return 0;
3935 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3936 "2712 lpfc_aer_support attribute value %d out "
3937 "of range, allowed values are 0|1, setting it "
3938 "to default value of 1\n", val);
3939 /* By default, try to enable AER on a device */
3940 phba->cfg_aer_support = 1;
3941 return -EINVAL;
3944 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
3945 lpfc_aer_support_show, lpfc_aer_support_store);
3948 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
3949 * @dev: class device that is converted into a Scsi_host.
3950 * @attr: device attribute, not used.
3951 * @buf: containing flag 1 for aer cleanup state.
3952 * @count: unused variable.
3954 * Description:
3955 * If the @buf contains 1 and the device currently has the AER support
3956 * enabled, then invokes the kernel AER helper routine
3957 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
3958 * error status register.
3960 * Notes:
3962 * Returns:
3963 * -EINVAL if the buf does not contain the 1 or the device is not currently
3964 * enabled with the AER support.
3966 static ssize_t
3967 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
3968 const char *buf, size_t count)
3970 struct Scsi_Host *shost = class_to_shost(dev);
3971 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3972 struct lpfc_hba *phba = vport->phba;
3973 int val, rc = -1;
3975 if (!isdigit(buf[0]))
3976 return -EINVAL;
3977 if (sscanf(buf, "%i", &val) != 1)
3978 return -EINVAL;
3979 if (val != 1)
3980 return -EINVAL;
3982 if (phba->hba_flag & HBA_AER_ENABLED)
3983 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
3985 if (rc == 0)
3986 return strlen(buf);
3987 else
3988 return -EPERM;
3991 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
3992 lpfc_aer_cleanup_state);
3995 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
3997 * @dev: class device that is converted into a Scsi_host.
3998 * @attr: device attribute, not used.
3999 * @buf: containing the string the number of vfs to be enabled.
4000 * @count: unused variable.
4002 * Description:
4003 * When this api is called either through user sysfs, the driver shall
4004 * try to enable or disable SR-IOV virtual functions according to the
4005 * following:
4007 * If zero virtual function has been enabled to the physical function,
4008 * the driver shall invoke the pci enable virtual function api trying
4009 * to enable the virtual functions. If the nr_vfn provided is greater
4010 * than the maximum supported, the maximum virtual function number will
4011 * be used for invoking the api; otherwise, the nr_vfn provided shall
4012 * be used for invoking the api. If the api call returned success, the
4013 * actual number of virtual functions enabled will be set to the driver
4014 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
4015 * cfg_sriov_nr_virtfn remains zero.
4017 * If none-zero virtual functions have already been enabled to the
4018 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
4019 * -EINVAL will be returned and the driver does nothing;
4021 * If the nr_vfn provided is zero and none-zero virtual functions have
4022 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
4023 * disabling virtual function api shall be invoded to disable all the
4024 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
4025 * zero. Otherwise, if zero virtual function has been enabled, do
4026 * nothing.
4028 * Returns:
4029 * length of the buf on success if val is in range the intended mode
4030 * is supported.
4031 * -EINVAL if val out of range or intended mode is not supported.
4033 static ssize_t
4034 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
4035 const char *buf, size_t count)
4037 struct Scsi_Host *shost = class_to_shost(dev);
4038 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4039 struct lpfc_hba *phba = vport->phba;
4040 struct pci_dev *pdev = phba->pcidev;
4041 int val = 0, rc = -EINVAL;
4043 /* Sanity check on user data */
4044 if (!isdigit(buf[0]))
4045 return -EINVAL;
4046 if (sscanf(buf, "%i", &val) != 1)
4047 return -EINVAL;
4048 if (val < 0)
4049 return -EINVAL;
4051 /* Request disabling virtual functions */
4052 if (val == 0) {
4053 if (phba->cfg_sriov_nr_virtfn > 0) {
4054 pci_disable_sriov(pdev);
4055 phba->cfg_sriov_nr_virtfn = 0;
4057 return strlen(buf);
4060 /* Request enabling virtual functions */
4061 if (phba->cfg_sriov_nr_virtfn > 0) {
4062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4063 "3018 There are %d virtual functions "
4064 "enabled on physical function.\n",
4065 phba->cfg_sriov_nr_virtfn);
4066 return -EEXIST;
4069 if (val <= LPFC_MAX_VFN_PER_PFN)
4070 phba->cfg_sriov_nr_virtfn = val;
4071 else {
4072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4073 "3019 Enabling %d virtual functions is not "
4074 "allowed.\n", val);
4075 return -EINVAL;
4078 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
4079 if (rc) {
4080 phba->cfg_sriov_nr_virtfn = 0;
4081 rc = -EPERM;
4082 } else
4083 rc = strlen(buf);
4085 return rc;
4088 static int lpfc_sriov_nr_virtfn = LPFC_DEF_VFN_PER_PFN;
4089 module_param(lpfc_sriov_nr_virtfn, int, S_IRUGO|S_IWUSR);
4090 MODULE_PARM_DESC(lpfc_sriov_nr_virtfn, "Enable PCIe device SR-IOV virtual fn");
4091 lpfc_param_show(sriov_nr_virtfn)
4094 * lpfc_sriov_nr_virtfn_init - Set the initial sr-iov virtual function enable
4095 * @phba: lpfc_hba pointer.
4096 * @val: link speed value.
4098 * Description:
4099 * If val is in a valid range [0,255], then set the adapter's initial
4100 * cfg_sriov_nr_virtfn field. If it's greater than the maximum, the maximum
4101 * number shall be used instead. It will be up to the driver's probe_one
4102 * routine to determine whether the device's SR-IOV is supported or not.
4104 * Returns:
4105 * zero if val saved.
4106 * -EINVAL val out of range
4108 static int
4109 lpfc_sriov_nr_virtfn_init(struct lpfc_hba *phba, int val)
4111 if (val >= 0 && val <= LPFC_MAX_VFN_PER_PFN) {
4112 phba->cfg_sriov_nr_virtfn = val;
4113 return 0;
4116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4117 "3017 Enabling %d virtual functions is not "
4118 "allowed.\n", val);
4119 return -EINVAL;
4121 static DEVICE_ATTR(lpfc_sriov_nr_virtfn, S_IRUGO | S_IWUSR,
4122 lpfc_sriov_nr_virtfn_show, lpfc_sriov_nr_virtfn_store);
4125 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade
4127 * @dev: class device that is converted into a Scsi_host.
4128 * @attr: device attribute, not used.
4129 * @buf: containing the string the number of vfs to be enabled.
4130 * @count: unused variable.
4132 * Description:
4134 * Returns:
4135 * length of the buf on success if val is in range the intended mode
4136 * is supported.
4137 * -EINVAL if val out of range or intended mode is not supported.
4139 static ssize_t
4140 lpfc_request_firmware_upgrade_store(struct device *dev,
4141 struct device_attribute *attr,
4142 const char *buf, size_t count)
4144 struct Scsi_Host *shost = class_to_shost(dev);
4145 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4146 struct lpfc_hba *phba = vport->phba;
4147 int val = 0, rc = -EINVAL;
4149 /* Sanity check on user data */
4150 if (!isdigit(buf[0]))
4151 return -EINVAL;
4152 if (sscanf(buf, "%i", &val) != 1)
4153 return -EINVAL;
4154 if (val != 1)
4155 return -EINVAL;
4157 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE);
4158 if (rc)
4159 rc = -EPERM;
4160 else
4161 rc = strlen(buf);
4162 return rc;
4165 static int lpfc_req_fw_upgrade;
4166 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR);
4167 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade");
4168 lpfc_param_show(request_firmware_upgrade)
4171 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade
4172 * @phba: lpfc_hba pointer.
4173 * @val: 0 or 1.
4175 * Description:
4176 * Set the initial Linux generic firmware upgrade enable or disable flag.
4178 * Returns:
4179 * zero if val saved.
4180 * -EINVAL val out of range
4182 static int
4183 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val)
4185 if (val >= 0 && val <= 1) {
4186 phba->cfg_request_firmware_upgrade = val;
4187 return 0;
4189 return -EINVAL;
4191 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR,
4192 lpfc_request_firmware_upgrade_show,
4193 lpfc_request_firmware_upgrade_store);
4196 * lpfc_fcp_imax_store
4198 * @dev: class device that is converted into a Scsi_host.
4199 * @attr: device attribute, not used.
4200 * @buf: string with the number of fast-path FCP interrupts per second.
4201 * @count: unused variable.
4203 * Description:
4204 * If val is in a valid range [636,651042], then set the adapter's
4205 * maximum number of fast-path FCP interrupts per second.
4207 * Returns:
4208 * length of the buf on success if val is in range the intended mode
4209 * is supported.
4210 * -EINVAL if val out of range or intended mode is not supported.
4212 static ssize_t
4213 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr,
4214 const char *buf, size_t count)
4216 struct Scsi_Host *shost = class_to_shost(dev);
4217 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4218 struct lpfc_hba *phba = vport->phba;
4219 int val = 0, i;
4221 /* fcp_imax is only valid for SLI4 */
4222 if (phba->sli_rev != LPFC_SLI_REV4)
4223 return -EINVAL;
4225 /* Sanity check on user data */
4226 if (!isdigit(buf[0]))
4227 return -EINVAL;
4228 if (sscanf(buf, "%i", &val) != 1)
4229 return -EINVAL;
4232 * Value range for the HBA is [5000,5000000]
4233 * The value for each EQ depends on how many EQs are configured.
4235 if (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)
4236 return -EINVAL;
4238 phba->cfg_fcp_imax = (uint32_t)val;
4239 for (i = 0; i < phba->cfg_fcp_io_channel; i += LPFC_MAX_EQ_DELAY)
4240 lpfc_modify_fcp_eq_delay(phba, i);
4242 return strlen(buf);
4246 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
4247 # for the HBA.
4249 # Value range is [5,000 to 5,000,000]. Default value is 50,000.
4251 static int lpfc_fcp_imax = LPFC_DEF_IMAX;
4252 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
4253 MODULE_PARM_DESC(lpfc_fcp_imax,
4254 "Set the maximum number of FCP interrupts per second per HBA");
4255 lpfc_param_show(fcp_imax)
4258 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable
4259 * @phba: lpfc_hba pointer.
4260 * @val: link speed value.
4262 * Description:
4263 * If val is in a valid range [636,651042], then initialize the adapter's
4264 * maximum number of fast-path FCP interrupts per second.
4266 * Returns:
4267 * zero if val saved.
4268 * -EINVAL val out of range
4270 static int
4271 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
4273 if (phba->sli_rev != LPFC_SLI_REV4) {
4274 phba->cfg_fcp_imax = 0;
4275 return 0;
4278 if (val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) {
4279 phba->cfg_fcp_imax = val;
4280 return 0;
4283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4284 "3016 fcp_imax: %d out of range, using default\n", val);
4285 phba->cfg_fcp_imax = LPFC_DEF_IMAX;
4287 return 0;
4290 static DEVICE_ATTR(lpfc_fcp_imax, S_IRUGO | S_IWUSR,
4291 lpfc_fcp_imax_show, lpfc_fcp_imax_store);
4294 * lpfc_state_show - Display current driver CPU affinity
4295 * @dev: class converted to a Scsi_host structure.
4296 * @attr: device attribute, not used.
4297 * @buf: on return contains text describing the state of the link.
4299 * Returns: size of formatted string.
4301 static ssize_t
4302 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr,
4303 char *buf)
4305 struct Scsi_Host *shost = class_to_shost(dev);
4306 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4307 struct lpfc_hba *phba = vport->phba;
4308 struct lpfc_vector_map_info *cpup;
4309 int len = 0;
4311 if ((phba->sli_rev != LPFC_SLI_REV4) ||
4312 (phba->intr_type != MSIX))
4313 return len;
4315 switch (phba->cfg_fcp_cpu_map) {
4316 case 0:
4317 len += snprintf(buf + len, PAGE_SIZE-len,
4318 "fcp_cpu_map: No mapping (%d)\n",
4319 phba->cfg_fcp_cpu_map);
4320 return len;
4321 case 1:
4322 len += snprintf(buf + len, PAGE_SIZE-len,
4323 "fcp_cpu_map: HBA centric mapping (%d): "
4324 "%d online CPUs\n",
4325 phba->cfg_fcp_cpu_map,
4326 phba->sli4_hba.num_online_cpu);
4327 break;
4328 case 2:
4329 len += snprintf(buf + len, PAGE_SIZE-len,
4330 "fcp_cpu_map: Driver centric mapping (%d): "
4331 "%d online CPUs\n",
4332 phba->cfg_fcp_cpu_map,
4333 phba->sli4_hba.num_online_cpu);
4334 break;
4337 while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_present_cpu) {
4338 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
4340 /* margin should fit in this and the truncated message */
4341 if (cpup->irq == LPFC_VECTOR_MAP_EMPTY)
4342 len += snprintf(buf + len, PAGE_SIZE-len,
4343 "CPU %02d io_chan %02d "
4344 "physid %d coreid %d\n",
4345 phba->sli4_hba.curr_disp_cpu,
4346 cpup->channel_id, cpup->phys_id,
4347 cpup->core_id);
4348 else
4349 len += snprintf(buf + len, PAGE_SIZE-len,
4350 "CPU %02d io_chan %02d "
4351 "physid %d coreid %d IRQ %d\n",
4352 phba->sli4_hba.curr_disp_cpu,
4353 cpup->channel_id, cpup->phys_id,
4354 cpup->core_id, cpup->irq);
4356 phba->sli4_hba.curr_disp_cpu++;
4358 /* display max number of CPUs keeping some margin */
4359 if (phba->sli4_hba.curr_disp_cpu <
4360 phba->sli4_hba.num_present_cpu &&
4361 (len >= (PAGE_SIZE - 64))) {
4362 len += snprintf(buf + len, PAGE_SIZE-len, "more...\n");
4363 break;
4367 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_present_cpu)
4368 phba->sli4_hba.curr_disp_cpu = 0;
4370 return len;
4374 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors
4375 * @dev: class device that is converted into a Scsi_host.
4376 * @attr: device attribute, not used.
4377 * @buf: one or more lpfc_polling_flags values.
4378 * @count: not used.
4380 * Returns:
4381 * -EINVAL - Not implemented yet.
4383 static ssize_t
4384 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr,
4385 const char *buf, size_t count)
4387 int status = -EINVAL;
4388 return status;
4392 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors
4393 # for the HBA.
4395 # Value range is [0 to 2]. Default value is LPFC_DRIVER_CPU_MAP (2).
4396 # 0 - Do not affinitze IRQ vectors
4397 # 1 - Affintize HBA vectors with respect to each HBA
4398 # (start with CPU0 for each HBA)
4399 # 2 - Affintize HBA vectors with respect to the entire driver
4400 # (round robin thru all CPUs across all HBAs)
4402 static int lpfc_fcp_cpu_map = LPFC_DRIVER_CPU_MAP;
4403 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR);
4404 MODULE_PARM_DESC(lpfc_fcp_cpu_map,
4405 "Defines how to map CPUs to IRQ vectors per HBA");
4408 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable
4409 * @phba: lpfc_hba pointer.
4410 * @val: link speed value.
4412 * Description:
4413 * If val is in a valid range [0-2], then affinitze the adapter's
4414 * MSIX vectors.
4416 * Returns:
4417 * zero if val saved.
4418 * -EINVAL val out of range
4420 static int
4421 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val)
4423 if (phba->sli_rev != LPFC_SLI_REV4) {
4424 phba->cfg_fcp_cpu_map = 0;
4425 return 0;
4428 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) {
4429 phba->cfg_fcp_cpu_map = val;
4430 return 0;
4433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4434 "3326 fcp_cpu_map: %d out of range, using default\n",
4435 val);
4436 phba->cfg_fcp_cpu_map = LPFC_DRIVER_CPU_MAP;
4438 return 0;
4441 static DEVICE_ATTR(lpfc_fcp_cpu_map, S_IRUGO | S_IWUSR,
4442 lpfc_fcp_cpu_map_show, lpfc_fcp_cpu_map_store);
4445 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
4446 # Value range is [2,3]. Default value is 3.
4448 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
4449 "Select Fibre Channel class of service for FCP sequences");
4452 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
4453 # is [0,1]. Default value is 0.
4455 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
4456 "Use ADISC on rediscovery to authenticate FCP devices");
4459 # lpfc_first_burst_size: First burst size to use on the NPorts
4460 # that support first burst.
4461 # Value range is [0,65536]. Default value is 0.
4463 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536,
4464 "First burst size for Targets that support first burst");
4467 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
4468 # depth. Default value is 0. When the value of this parameter is zero the
4469 # SCSI command completion time is not used for controlling I/O queue depth. When
4470 # the parameter is set to a non-zero value, the I/O queue depth is controlled
4471 # to limit the I/O completion time to the parameter value.
4472 # The value is set in milliseconds.
4474 static int lpfc_max_scsicmpl_time;
4475 module_param(lpfc_max_scsicmpl_time, int, S_IRUGO);
4476 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
4477 "Use command completion time to control queue depth");
4478 lpfc_vport_param_show(max_scsicmpl_time);
4479 lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
4480 static int
4481 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
4483 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4484 struct lpfc_nodelist *ndlp, *next_ndlp;
4486 if (val == vport->cfg_max_scsicmpl_time)
4487 return 0;
4488 if ((val < 0) || (val > 60000))
4489 return -EINVAL;
4490 vport->cfg_max_scsicmpl_time = val;
4492 spin_lock_irq(shost->host_lock);
4493 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4494 if (!NLP_CHK_NODE_ACT(ndlp))
4495 continue;
4496 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
4497 continue;
4498 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
4500 spin_unlock_irq(shost->host_lock);
4501 return 0;
4503 lpfc_vport_param_store(max_scsicmpl_time);
4504 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
4505 lpfc_max_scsicmpl_time_show,
4506 lpfc_max_scsicmpl_time_store);
4509 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
4510 # range is [0,1]. Default value is 0.
4512 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
4515 # lpfc_fcp_io_sched: Determine scheduling algrithmn for issuing FCP cmds
4516 # range is [0,1]. Default value is 0.
4517 # For [0], FCP commands are issued to Work Queues ina round robin fashion.
4518 # For [1], FCP commands are issued to a Work Queue associated with the
4519 # current CPU.
4520 # It would be set to 1 by the driver if it's able to set up cpu affinity
4521 # for FCP I/Os through Work Queue associated with the current CPU. Otherwise,
4522 # roundrobin scheduling of FCP I/Os through WQs will be used.
4524 LPFC_ATTR_RW(fcp_io_sched, 0, 0, 1, "Determine scheduling algorithm for "
4525 "issuing commands [0] - Round Robin, [1] - Current CPU");
4528 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior
4529 # range is [0,1]. Default value is 0.
4530 # For [0], bus reset issues target reset to ALL devices
4531 # For [1], bus reset issues target reset to non-FCP2 devices
4533 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for "
4534 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset");
4538 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
4539 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
4540 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
4541 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
4542 # cr_delay is set to 0.
4544 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
4545 "interrupt response is generated");
4547 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
4548 "interrupt response is generated");
4551 # lpfc_multi_ring_support: Determines how many rings to spread available
4552 # cmd/rsp IOCB entries across.
4553 # Value range is [1,2]. Default value is 1.
4555 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
4556 "SLI rings to spread IOCB entries across");
4559 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
4560 # identifies what rctl value to configure the additional ring for.
4561 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
4563 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
4564 255, "Identifies RCTL for additional ring configuration");
4567 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
4568 # identifies what type value to configure the additional ring for.
4569 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
4571 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
4572 255, "Identifies TYPE for additional ring configuration");
4575 # lpfc_fdmi_on: controls FDMI support.
4576 # Set NOT Set
4577 # bit 0 = FDMI support no FDMI support
4578 # LPFC_FDMI_SUPPORT just turns basic support on/off
4579 # bit 1 = Register delay no register delay (60 seconds)
4580 # LPFC_FDMI_REG_DELAY 60 sec registration delay after FDMI login
4581 # bit 2 = All attributes Use a attribute subset
4582 # LPFC_FDMI_ALL_ATTRIB applies to both port and HBA attributes
4583 # Port attrutes subset: 1 thru 6 OR all: 1 thru 0xd 0x101 0x102 0x103
4584 # HBA attributes subset: 1 thru 0xb OR all: 1 thru 0xc
4585 # Value range [0,7]. Default value is 0.
4587 LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 7, "Enable FDMI support");
4590 # Specifies the maximum number of ELS cmds we can have outstanding (for
4591 # discovery). Value range is [1,64]. Default value = 32.
4593 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
4594 "during discovery");
4597 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that
4598 # will be scanned by the SCSI midlayer when sequential scanning is
4599 # used; and is also the highest LUN ID allowed when the SCSI midlayer
4600 # parses REPORT_LUN responses. The lpfc driver has no LUN count or
4601 # LUN ID limit, but the SCSI midlayer requires this field for the uses
4602 # above. The lpfc driver limits the default value to 255 for two reasons.
4603 # As it bounds the sequential scan loop, scanning for thousands of luns
4604 # on a target can take minutes of wall clock time. Additionally,
4605 # there are FC targets, such as JBODs, that only recognize 8-bits of
4606 # LUN ID. When they receive a value greater than 8 bits, they chop off
4607 # the high order bits. In other words, they see LUN IDs 0, 256, 512,
4608 # and so on all as LUN ID 0. This causes the linux kernel, which sees
4609 # valid responses at each of the LUN IDs, to believe there are multiple
4610 # devices present, when in fact, there is only 1.
4611 # A customer that is aware of their target behaviors, and the results as
4612 # indicated above, is welcome to increase the lpfc_max_luns value.
4613 # As mentioned, this value is not used by the lpfc driver, only the
4614 # SCSI midlayer.
4615 # Value range is [0,65535]. Default value is 255.
4616 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
4618 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID");
4621 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
4622 # Value range is [1,255], default value is 10.
4624 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
4625 "Milliseconds driver will wait between polling FCP ring");
4628 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands
4629 # to complete in seconds. Value range is [5,180], default value is 60.
4631 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180,
4632 "Maximum time to wait for task management commands to complete");
4634 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
4635 # support this feature
4636 # 0 = MSI disabled
4637 # 1 = MSI enabled
4638 # 2 = MSI-X enabled (default)
4639 # Value range is [0,2]. Default value is 2.
4641 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
4642 "MSI-X (2), if possible");
4645 # lpfc_fcp_io_channel: Set the number of FCP EQ/CQ/WQ IO channels
4647 # Value range is [1,7]. Default value is 4.
4649 LPFC_ATTR_R(fcp_io_channel, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
4650 LPFC_FCP_IO_CHAN_MAX,
4651 "Set the number of FCP I/O channels");
4654 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
4655 # 0 = HBA resets disabled
4656 # 1 = HBA resets enabled (default)
4657 # Value range is [0,1]. Default value is 1.
4659 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
4662 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
4663 # 0 = HBA Heartbeat disabled
4664 # 1 = HBA Heartbeat enabled (default)
4665 # Value range is [0,1]. Default value is 1.
4667 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
4670 # lpfc_EnableXLane: Enable Express Lane Feature
4671 # 0x0 Express Lane Feature disabled
4672 # 0x1 Express Lane Feature enabled
4673 # Value range is [0,1]. Default value is 0.
4675 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
4678 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature
4679 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits)
4680 # Value range is [0x0,0x7f]. Default value is 0
4682 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
4685 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
4686 # 0 = BlockGuard disabled (default)
4687 # 1 = BlockGuard enabled
4688 # Value range is [0,1]. Default value is 0.
4690 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
4693 # lpfc_fcp_look_ahead: Look ahead for completions in FCP start routine
4694 # 0 = disabled (default)
4695 # 1 = enabled
4696 # Value range is [0,1]. Default value is 0.
4698 # This feature in under investigation and may be supported in the future.
4700 unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF;
4703 # lpfc_prot_mask: i
4704 # - Bit mask of host protection capabilities used to register with the
4705 # SCSI mid-layer
4706 # - Only meaningful if BG is turned on (lpfc_enable_bg=1).
4707 # - Allows you to ultimately specify which profiles to use
4708 # - Default will result in registering capabilities for all profiles.
4709 # - SHOST_DIF_TYPE1_PROTECTION 1
4710 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection
4711 # - SHOST_DIX_TYPE0_PROTECTION 8
4712 # HBA supports DIX Type 0: Host to HBA protection only
4713 # - SHOST_DIX_TYPE1_PROTECTION 16
4714 # HBA supports DIX Type 1: Host to HBA Type 1 protection
4717 unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION |
4718 SHOST_DIX_TYPE0_PROTECTION |
4719 SHOST_DIX_TYPE1_PROTECTION;
4721 module_param(lpfc_prot_mask, uint, S_IRUGO);
4722 MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
4725 # lpfc_prot_guard: i
4726 # - Bit mask of protection guard types to register with the SCSI mid-layer
4727 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum
4728 # - Allows you to ultimately specify which profiles to use
4729 # - Default will result in registering capabilities for all guard types
4732 unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
4733 module_param(lpfc_prot_guard, byte, S_IRUGO);
4734 MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
4737 * Delay initial NPort discovery when Clean Address bit is cleared in
4738 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
4739 * This parameter can have value 0 or 1.
4740 * When this parameter is set to 0, no delay is added to the initial
4741 * discovery.
4742 * When this parameter is set to non-zero value, initial Nport discovery is
4743 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
4744 * accept and FCID/Fabric name/Fabric portname is changed.
4745 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
4746 * when Clean Address bit is cleared in FLOGI/FDISC
4747 * accept and FCID/Fabric name/Fabric portname is changed.
4748 * Default value is 0.
4750 int lpfc_delay_discovery;
4751 module_param(lpfc_delay_discovery, int, S_IRUGO);
4752 MODULE_PARM_DESC(lpfc_delay_discovery,
4753 "Delay NPort discovery when Clean Address bit is cleared. "
4754 "Allowed values: 0,1.");
4757 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
4758 * This value can be set to values between 64 and 4096. The default value is
4759 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
4760 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
4761 * Because of the additional overhead involved in setting up T10-DIF,
4762 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4
4763 * and will be limited to 512 if BlockGuard is enabled under SLI3.
4765 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
4766 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
4769 * This parameter will be depricated, the driver cannot limit the
4770 * protection data s/g list.
4772 LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT,
4773 LPFC_DEFAULT_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT,
4774 "Max Protection Scatter Gather Segment Count");
4776 struct device_attribute *lpfc_hba_attrs[] = {
4777 &dev_attr_bg_info,
4778 &dev_attr_bg_guard_err,
4779 &dev_attr_bg_apptag_err,
4780 &dev_attr_bg_reftag_err,
4781 &dev_attr_info,
4782 &dev_attr_serialnum,
4783 &dev_attr_modeldesc,
4784 &dev_attr_modelname,
4785 &dev_attr_programtype,
4786 &dev_attr_portnum,
4787 &dev_attr_fwrev,
4788 &dev_attr_hdw,
4789 &dev_attr_option_rom_version,
4790 &dev_attr_link_state,
4791 &dev_attr_num_discovered_ports,
4792 &dev_attr_menlo_mgmt_mode,
4793 &dev_attr_lpfc_drvr_version,
4794 &dev_attr_lpfc_enable_fip,
4795 &dev_attr_lpfc_temp_sensor,
4796 &dev_attr_lpfc_log_verbose,
4797 &dev_attr_lpfc_lun_queue_depth,
4798 &dev_attr_lpfc_tgt_queue_depth,
4799 &dev_attr_lpfc_hba_queue_depth,
4800 &dev_attr_lpfc_peer_port_login,
4801 &dev_attr_lpfc_nodev_tmo,
4802 &dev_attr_lpfc_devloss_tmo,
4803 &dev_attr_lpfc_fcp_class,
4804 &dev_attr_lpfc_use_adisc,
4805 &dev_attr_lpfc_first_burst_size,
4806 &dev_attr_lpfc_ack0,
4807 &dev_attr_lpfc_topology,
4808 &dev_attr_lpfc_scan_down,
4809 &dev_attr_lpfc_link_speed,
4810 &dev_attr_lpfc_fcp_io_sched,
4811 &dev_attr_lpfc_fcp2_no_tgt_reset,
4812 &dev_attr_lpfc_cr_delay,
4813 &dev_attr_lpfc_cr_count,
4814 &dev_attr_lpfc_multi_ring_support,
4815 &dev_attr_lpfc_multi_ring_rctl,
4816 &dev_attr_lpfc_multi_ring_type,
4817 &dev_attr_lpfc_fdmi_on,
4818 &dev_attr_lpfc_max_luns,
4819 &dev_attr_lpfc_enable_npiv,
4820 &dev_attr_lpfc_fcf_failover_policy,
4821 &dev_attr_lpfc_enable_rrq,
4822 &dev_attr_nport_evt_cnt,
4823 &dev_attr_board_mode,
4824 &dev_attr_max_vpi,
4825 &dev_attr_used_vpi,
4826 &dev_attr_max_rpi,
4827 &dev_attr_used_rpi,
4828 &dev_attr_max_xri,
4829 &dev_attr_used_xri,
4830 &dev_attr_npiv_info,
4831 &dev_attr_issue_reset,
4832 &dev_attr_lpfc_poll,
4833 &dev_attr_lpfc_poll_tmo,
4834 &dev_attr_lpfc_task_mgmt_tmo,
4835 &dev_attr_lpfc_use_msi,
4836 &dev_attr_lpfc_fcp_imax,
4837 &dev_attr_lpfc_fcp_cpu_map,
4838 &dev_attr_lpfc_fcp_io_channel,
4839 &dev_attr_lpfc_enable_bg,
4840 &dev_attr_lpfc_soft_wwnn,
4841 &dev_attr_lpfc_soft_wwpn,
4842 &dev_attr_lpfc_soft_wwn_enable,
4843 &dev_attr_lpfc_enable_hba_reset,
4844 &dev_attr_lpfc_enable_hba_heartbeat,
4845 &dev_attr_lpfc_EnableXLane,
4846 &dev_attr_lpfc_XLanePriority,
4847 &dev_attr_lpfc_xlane_lun,
4848 &dev_attr_lpfc_xlane_tgt,
4849 &dev_attr_lpfc_xlane_vpt,
4850 &dev_attr_lpfc_xlane_lun_state,
4851 &dev_attr_lpfc_xlane_lun_status,
4852 &dev_attr_lpfc_sg_seg_cnt,
4853 &dev_attr_lpfc_max_scsicmpl_time,
4854 &dev_attr_lpfc_stat_data_ctrl,
4855 &dev_attr_lpfc_prot_sg_seg_cnt,
4856 &dev_attr_lpfc_aer_support,
4857 &dev_attr_lpfc_aer_state_cleanup,
4858 &dev_attr_lpfc_sriov_nr_virtfn,
4859 &dev_attr_lpfc_req_fw_upgrade,
4860 &dev_attr_lpfc_suppress_link_up,
4861 &dev_attr_lpfc_iocb_cnt,
4862 &dev_attr_iocb_hw,
4863 &dev_attr_txq_hw,
4864 &dev_attr_txcmplq_hw,
4865 &dev_attr_lpfc_fips_level,
4866 &dev_attr_lpfc_fips_rev,
4867 &dev_attr_lpfc_dss,
4868 &dev_attr_lpfc_sriov_hw_max_virtfn,
4869 &dev_attr_protocol,
4870 &dev_attr_lpfc_xlane_supported,
4871 NULL,
4874 struct device_attribute *lpfc_vport_attrs[] = {
4875 &dev_attr_info,
4876 &dev_attr_link_state,
4877 &dev_attr_num_discovered_ports,
4878 &dev_attr_lpfc_drvr_version,
4879 &dev_attr_lpfc_log_verbose,
4880 &dev_attr_lpfc_lun_queue_depth,
4881 &dev_attr_lpfc_tgt_queue_depth,
4882 &dev_attr_lpfc_nodev_tmo,
4883 &dev_attr_lpfc_devloss_tmo,
4884 &dev_attr_lpfc_hba_queue_depth,
4885 &dev_attr_lpfc_peer_port_login,
4886 &dev_attr_lpfc_restrict_login,
4887 &dev_attr_lpfc_fcp_class,
4888 &dev_attr_lpfc_use_adisc,
4889 &dev_attr_lpfc_first_burst_size,
4890 &dev_attr_lpfc_fdmi_on,
4891 &dev_attr_lpfc_max_luns,
4892 &dev_attr_nport_evt_cnt,
4893 &dev_attr_npiv_info,
4894 &dev_attr_lpfc_enable_da_id,
4895 &dev_attr_lpfc_max_scsicmpl_time,
4896 &dev_attr_lpfc_stat_data_ctrl,
4897 &dev_attr_lpfc_static_vport,
4898 &dev_attr_lpfc_fips_level,
4899 &dev_attr_lpfc_fips_rev,
4900 NULL,
4904 * sysfs_ctlreg_write - Write method for writing to ctlreg
4905 * @filp: open sysfs file
4906 * @kobj: kernel kobject that contains the kernel class device.
4907 * @bin_attr: kernel attributes passed to us.
4908 * @buf: contains the data to be written to the adapter IOREG space.
4909 * @off: offset into buffer to beginning of data.
4910 * @count: bytes to transfer.
4912 * Description:
4913 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
4914 * Uses the adapter io control registers to send buf contents to the adapter.
4916 * Returns:
4917 * -ERANGE off and count combo out of range
4918 * -EINVAL off, count or buff address invalid
4919 * -EPERM adapter is offline
4920 * value of count, buf contents written
4922 static ssize_t
4923 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
4924 struct bin_attribute *bin_attr,
4925 char *buf, loff_t off, size_t count)
4927 size_t buf_off;
4928 struct device *dev = container_of(kobj, struct device, kobj);
4929 struct Scsi_Host *shost = class_to_shost(dev);
4930 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4931 struct lpfc_hba *phba = vport->phba;
4933 if (phba->sli_rev >= LPFC_SLI_REV4)
4934 return -EPERM;
4936 if ((off + count) > FF_REG_AREA_SIZE)
4937 return -ERANGE;
4939 if (count <= LPFC_REG_WRITE_KEY_SIZE)
4940 return 0;
4942 if (off % 4 || count % 4 || (unsigned long)buf % 4)
4943 return -EINVAL;
4945 /* This is to protect HBA registers from accidental writes. */
4946 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE))
4947 return -EINVAL;
4949 if (!(vport->fc_flag & FC_OFFLINE_MODE))
4950 return -EPERM;
4952 spin_lock_irq(&phba->hbalock);
4953 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE;
4954 buf_off += sizeof(uint32_t))
4955 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)),
4956 phba->ctrl_regs_memmap_p + off + buf_off);
4958 spin_unlock_irq(&phba->hbalock);
4960 return count;
4964 * sysfs_ctlreg_read - Read method for reading from ctlreg
4965 * @filp: open sysfs file
4966 * @kobj: kernel kobject that contains the kernel class device.
4967 * @bin_attr: kernel attributes passed to us.
4968 * @buf: if successful contains the data from the adapter IOREG space.
4969 * @off: offset into buffer to beginning of data.
4970 * @count: bytes to transfer.
4972 * Description:
4973 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
4974 * Uses the adapter io control registers to read data into buf.
4976 * Returns:
4977 * -ERANGE off and count combo out of range
4978 * -EINVAL off, count or buff address invalid
4979 * value of count, buf contents read
4981 static ssize_t
4982 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
4983 struct bin_attribute *bin_attr,
4984 char *buf, loff_t off, size_t count)
4986 size_t buf_off;
4987 uint32_t * tmp_ptr;
4988 struct device *dev = container_of(kobj, struct device, kobj);
4989 struct Scsi_Host *shost = class_to_shost(dev);
4990 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4991 struct lpfc_hba *phba = vport->phba;
4993 if (phba->sli_rev >= LPFC_SLI_REV4)
4994 return -EPERM;
4996 if (off > FF_REG_AREA_SIZE)
4997 return -ERANGE;
4999 if ((off + count) > FF_REG_AREA_SIZE)
5000 count = FF_REG_AREA_SIZE - off;
5002 if (count == 0) return 0;
5004 if (off % 4 || count % 4 || (unsigned long)buf % 4)
5005 return -EINVAL;
5007 spin_lock_irq(&phba->hbalock);
5009 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
5010 tmp_ptr = (uint32_t *)(buf + buf_off);
5011 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
5014 spin_unlock_irq(&phba->hbalock);
5016 return count;
5019 static struct bin_attribute sysfs_ctlreg_attr = {
5020 .attr = {
5021 .name = "ctlreg",
5022 .mode = S_IRUSR | S_IWUSR,
5024 .size = 256,
5025 .read = sysfs_ctlreg_read,
5026 .write = sysfs_ctlreg_write,
5030 * sysfs_mbox_write - Write method for writing information via mbox
5031 * @filp: open sysfs file
5032 * @kobj: kernel kobject that contains the kernel class device.
5033 * @bin_attr: kernel attributes passed to us.
5034 * @buf: contains the data to be written to sysfs mbox.
5035 * @off: offset into buffer to beginning of data.
5036 * @count: bytes to transfer.
5038 * Description:
5039 * Deprecated function. All mailbox access from user space is performed via the
5040 * bsg interface.
5042 * Returns:
5043 * -EPERM operation not permitted
5045 static ssize_t
5046 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
5047 struct bin_attribute *bin_attr,
5048 char *buf, loff_t off, size_t count)
5050 return -EPERM;
5054 * sysfs_mbox_read - Read method for reading information via mbox
5055 * @filp: open sysfs file
5056 * @kobj: kernel kobject that contains the kernel class device.
5057 * @bin_attr: kernel attributes passed to us.
5058 * @buf: contains the data to be read from sysfs mbox.
5059 * @off: offset into buffer to beginning of data.
5060 * @count: bytes to transfer.
5062 * Description:
5063 * Deprecated function. All mailbox access from user space is performed via the
5064 * bsg interface.
5066 * Returns:
5067 * -EPERM operation not permitted
5069 static ssize_t
5070 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
5071 struct bin_attribute *bin_attr,
5072 char *buf, loff_t off, size_t count)
5074 return -EPERM;
5077 static struct bin_attribute sysfs_mbox_attr = {
5078 .attr = {
5079 .name = "mbox",
5080 .mode = S_IRUSR | S_IWUSR,
5082 .size = MAILBOX_SYSFS_MAX,
5083 .read = sysfs_mbox_read,
5084 .write = sysfs_mbox_write,
5088 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
5089 * @vport: address of lpfc vport structure.
5091 * Return codes:
5092 * zero on success
5093 * error return code from sysfs_create_bin_file()
5096 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
5098 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5099 int error;
5101 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5102 &sysfs_drvr_stat_data_attr);
5104 /* Virtual ports do not need ctrl_reg and mbox */
5105 if (error || vport->port_type == LPFC_NPIV_PORT)
5106 goto out;
5108 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5109 &sysfs_ctlreg_attr);
5110 if (error)
5111 goto out_remove_stat_attr;
5113 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
5114 &sysfs_mbox_attr);
5115 if (error)
5116 goto out_remove_ctlreg_attr;
5118 return 0;
5119 out_remove_ctlreg_attr:
5120 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
5121 out_remove_stat_attr:
5122 sysfs_remove_bin_file(&shost->shost_dev.kobj,
5123 &sysfs_drvr_stat_data_attr);
5124 out:
5125 return error;
5129 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
5130 * @vport: address of lpfc vport structure.
5132 void
5133 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
5135 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5136 sysfs_remove_bin_file(&shost->shost_dev.kobj,
5137 &sysfs_drvr_stat_data_attr);
5138 /* Virtual ports do not need ctrl_reg and mbox */
5139 if (vport->port_type == LPFC_NPIV_PORT)
5140 return;
5141 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
5142 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
5147 * Dynamic FC Host Attributes Support
5151 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
5152 * @shost: kernel scsi host pointer.
5154 static void
5155 lpfc_get_host_port_id(struct Scsi_Host *shost)
5157 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5159 /* note: fc_myDID already in cpu endianness */
5160 fc_host_port_id(shost) = vport->fc_myDID;
5164 * lpfc_get_host_port_type - Set the value of the scsi host port type
5165 * @shost: kernel scsi host pointer.
5167 static void
5168 lpfc_get_host_port_type(struct Scsi_Host *shost)
5170 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5171 struct lpfc_hba *phba = vport->phba;
5173 spin_lock_irq(shost->host_lock);
5175 if (vport->port_type == LPFC_NPIV_PORT) {
5176 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
5177 } else if (lpfc_is_link_up(phba)) {
5178 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5179 if (vport->fc_flag & FC_PUBLIC_LOOP)
5180 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
5181 else
5182 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
5183 } else {
5184 if (vport->fc_flag & FC_FABRIC)
5185 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
5186 else
5187 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
5189 } else
5190 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
5192 spin_unlock_irq(shost->host_lock);
5196 * lpfc_get_host_port_state - Set the value of the scsi host port state
5197 * @shost: kernel scsi host pointer.
5199 static void
5200 lpfc_get_host_port_state(struct Scsi_Host *shost)
5202 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5203 struct lpfc_hba *phba = vport->phba;
5205 spin_lock_irq(shost->host_lock);
5207 if (vport->fc_flag & FC_OFFLINE_MODE)
5208 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
5209 else {
5210 switch (phba->link_state) {
5211 case LPFC_LINK_UNKNOWN:
5212 case LPFC_LINK_DOWN:
5213 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
5214 break;
5215 case LPFC_LINK_UP:
5216 case LPFC_CLEAR_LA:
5217 case LPFC_HBA_READY:
5218 /* Links up, reports port state accordingly */
5219 if (vport->port_state < LPFC_VPORT_READY)
5220 fc_host_port_state(shost) =
5221 FC_PORTSTATE_BYPASSED;
5222 else
5223 fc_host_port_state(shost) =
5224 FC_PORTSTATE_ONLINE;
5225 break;
5226 case LPFC_HBA_ERROR:
5227 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
5228 break;
5229 default:
5230 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
5231 break;
5235 spin_unlock_irq(shost->host_lock);
5239 * lpfc_get_host_speed - Set the value of the scsi host speed
5240 * @shost: kernel scsi host pointer.
5242 static void
5243 lpfc_get_host_speed(struct Scsi_Host *shost)
5245 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5246 struct lpfc_hba *phba = vport->phba;
5248 spin_lock_irq(shost->host_lock);
5250 if (lpfc_is_link_up(phba)) {
5251 switch(phba->fc_linkspeed) {
5252 case LPFC_LINK_SPEED_1GHZ:
5253 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
5254 break;
5255 case LPFC_LINK_SPEED_2GHZ:
5256 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
5257 break;
5258 case LPFC_LINK_SPEED_4GHZ:
5259 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
5260 break;
5261 case LPFC_LINK_SPEED_8GHZ:
5262 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
5263 break;
5264 case LPFC_LINK_SPEED_10GHZ:
5265 fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
5266 break;
5267 case LPFC_LINK_SPEED_16GHZ:
5268 fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
5269 break;
5270 default:
5271 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
5272 break;
5274 } else
5275 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
5277 spin_unlock_irq(shost->host_lock);
5281 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
5282 * @shost: kernel scsi host pointer.
5284 static void
5285 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
5287 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5288 struct lpfc_hba *phba = vport->phba;
5289 u64 node_name;
5291 spin_lock_irq(shost->host_lock);
5293 if ((vport->port_state > LPFC_FLOGI) &&
5294 ((vport->fc_flag & FC_FABRIC) ||
5295 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
5296 (vport->fc_flag & FC_PUBLIC_LOOP))))
5297 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
5298 else
5299 /* fabric is local port if there is no F/FL_Port */
5300 node_name = 0;
5302 spin_unlock_irq(shost->host_lock);
5304 fc_host_fabric_name(shost) = node_name;
5308 * lpfc_get_stats - Return statistical information about the adapter
5309 * @shost: kernel scsi host pointer.
5311 * Notes:
5312 * NULL on error for link down, no mbox pool, sli2 active,
5313 * management not allowed, memory allocation error, or mbox error.
5315 * Returns:
5316 * NULL for error
5317 * address of the adapter host statistics
5319 static struct fc_host_statistics *
5320 lpfc_get_stats(struct Scsi_Host *shost)
5322 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5323 struct lpfc_hba *phba = vport->phba;
5324 struct lpfc_sli *psli = &phba->sli;
5325 struct fc_host_statistics *hs = &phba->link_stats;
5326 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
5327 LPFC_MBOXQ_t *pmboxq;
5328 MAILBOX_t *pmb;
5329 unsigned long seconds;
5330 int rc = 0;
5333 * prevent udev from issuing mailbox commands until the port is
5334 * configured.
5336 if (phba->link_state < LPFC_LINK_DOWN ||
5337 !phba->mbox_mem_pool ||
5338 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
5339 return NULL;
5341 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
5342 return NULL;
5344 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5345 if (!pmboxq)
5346 return NULL;
5347 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
5349 pmb = &pmboxq->u.mb;
5350 pmb->mbxCommand = MBX_READ_STATUS;
5351 pmb->mbxOwner = OWN_HOST;
5352 pmboxq->context1 = NULL;
5353 pmboxq->vport = vport;
5355 if (vport->fc_flag & FC_OFFLINE_MODE)
5356 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5357 else
5358 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5360 if (rc != MBX_SUCCESS) {
5361 if (rc != MBX_TIMEOUT)
5362 mempool_free(pmboxq, phba->mbox_mem_pool);
5363 return NULL;
5366 memset(hs, 0, sizeof (struct fc_host_statistics));
5368 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
5370 * The MBX_READ_STATUS returns tx_k_bytes which has to
5371 * converted to words
5373 hs->tx_words = (uint64_t)
5374 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt
5375 * (uint64_t)256);
5376 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
5377 hs->rx_words = (uint64_t)
5378 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt
5379 * (uint64_t)256);
5381 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
5382 pmb->mbxCommand = MBX_READ_LNK_STAT;
5383 pmb->mbxOwner = OWN_HOST;
5384 pmboxq->context1 = NULL;
5385 pmboxq->vport = vport;
5387 if (vport->fc_flag & FC_OFFLINE_MODE)
5388 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5389 else
5390 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5392 if (rc != MBX_SUCCESS) {
5393 if (rc != MBX_TIMEOUT)
5394 mempool_free(pmboxq, phba->mbox_mem_pool);
5395 return NULL;
5398 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
5399 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
5400 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
5401 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
5402 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
5403 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
5404 hs->error_frames = pmb->un.varRdLnk.crcCnt;
5406 hs->link_failure_count -= lso->link_failure_count;
5407 hs->loss_of_sync_count -= lso->loss_of_sync_count;
5408 hs->loss_of_signal_count -= lso->loss_of_signal_count;
5409 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
5410 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
5411 hs->invalid_crc_count -= lso->invalid_crc_count;
5412 hs->error_frames -= lso->error_frames;
5414 if (phba->hba_flag & HBA_FCOE_MODE) {
5415 hs->lip_count = -1;
5416 hs->nos_count = (phba->link_events >> 1);
5417 hs->nos_count -= lso->link_events;
5418 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5419 hs->lip_count = (phba->fc_eventTag >> 1);
5420 hs->lip_count -= lso->link_events;
5421 hs->nos_count = -1;
5422 } else {
5423 hs->lip_count = -1;
5424 hs->nos_count = (phba->fc_eventTag >> 1);
5425 hs->nos_count -= lso->link_events;
5428 hs->dumped_frames = -1;
5430 seconds = get_seconds();
5431 if (seconds < psli->stats_start)
5432 hs->seconds_since_last_reset = seconds +
5433 ((unsigned long)-1 - psli->stats_start);
5434 else
5435 hs->seconds_since_last_reset = seconds - psli->stats_start;
5437 mempool_free(pmboxq, phba->mbox_mem_pool);
5439 return hs;
5443 * lpfc_reset_stats - Copy the adapter link stats information
5444 * @shost: kernel scsi host pointer.
5446 static void
5447 lpfc_reset_stats(struct Scsi_Host *shost)
5449 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5450 struct lpfc_hba *phba = vport->phba;
5451 struct lpfc_sli *psli = &phba->sli;
5452 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
5453 LPFC_MBOXQ_t *pmboxq;
5454 MAILBOX_t *pmb;
5455 int rc = 0;
5457 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
5458 return;
5460 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5461 if (!pmboxq)
5462 return;
5463 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
5465 pmb = &pmboxq->u.mb;
5466 pmb->mbxCommand = MBX_READ_STATUS;
5467 pmb->mbxOwner = OWN_HOST;
5468 pmb->un.varWords[0] = 0x1; /* reset request */
5469 pmboxq->context1 = NULL;
5470 pmboxq->vport = vport;
5472 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
5473 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
5474 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5475 else
5476 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5478 if (rc != MBX_SUCCESS) {
5479 if (rc != MBX_TIMEOUT)
5480 mempool_free(pmboxq, phba->mbox_mem_pool);
5481 return;
5484 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
5485 pmb->mbxCommand = MBX_READ_LNK_STAT;
5486 pmb->mbxOwner = OWN_HOST;
5487 pmboxq->context1 = NULL;
5488 pmboxq->vport = vport;
5490 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
5491 (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
5492 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
5493 else
5494 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
5496 if (rc != MBX_SUCCESS) {
5497 if (rc != MBX_TIMEOUT)
5498 mempool_free( pmboxq, phba->mbox_mem_pool);
5499 return;
5502 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
5503 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
5504 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
5505 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
5506 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
5507 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
5508 lso->error_frames = pmb->un.varRdLnk.crcCnt;
5509 if (phba->hba_flag & HBA_FCOE_MODE)
5510 lso->link_events = (phba->link_events >> 1);
5511 else
5512 lso->link_events = (phba->fc_eventTag >> 1);
5514 psli->stats_start = get_seconds();
5516 mempool_free(pmboxq, phba->mbox_mem_pool);
5518 return;
5522 * The LPFC driver treats linkdown handling as target loss events so there
5523 * are no sysfs handlers for link_down_tmo.
5527 * lpfc_get_node_by_target - Return the nodelist for a target
5528 * @starget: kernel scsi target pointer.
5530 * Returns:
5531 * address of the node list if found
5532 * NULL target not found
5534 static struct lpfc_nodelist *
5535 lpfc_get_node_by_target(struct scsi_target *starget)
5537 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
5538 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5539 struct lpfc_nodelist *ndlp;
5541 spin_lock_irq(shost->host_lock);
5542 /* Search for this, mapped, target ID */
5543 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5544 if (NLP_CHK_NODE_ACT(ndlp) &&
5545 ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
5546 starget->id == ndlp->nlp_sid) {
5547 spin_unlock_irq(shost->host_lock);
5548 return ndlp;
5551 spin_unlock_irq(shost->host_lock);
5552 return NULL;
5556 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
5557 * @starget: kernel scsi target pointer.
5559 static void
5560 lpfc_get_starget_port_id(struct scsi_target *starget)
5562 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5564 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
5568 * lpfc_get_starget_node_name - Set the target node name
5569 * @starget: kernel scsi target pointer.
5571 * Description: Set the target node name to the ndlp node name wwn or zero.
5573 static void
5574 lpfc_get_starget_node_name(struct scsi_target *starget)
5576 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5578 fc_starget_node_name(starget) =
5579 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
5583 * lpfc_get_starget_port_name - Set the target port name
5584 * @starget: kernel scsi target pointer.
5586 * Description: set the target port name to the ndlp port name wwn or zero.
5588 static void
5589 lpfc_get_starget_port_name(struct scsi_target *starget)
5591 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
5593 fc_starget_port_name(starget) =
5594 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
5598 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
5599 * @rport: fc rport address.
5600 * @timeout: new value for dev loss tmo.
5602 * Description:
5603 * If timeout is non zero set the dev_loss_tmo to timeout, else set
5604 * dev_loss_tmo to one.
5606 static void
5607 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
5609 if (timeout)
5610 rport->dev_loss_tmo = timeout;
5611 else
5612 rport->dev_loss_tmo = 1;
5616 * lpfc_rport_show_function - Return rport target information
5618 * Description:
5619 * Macro that uses field to generate a function with the name lpfc_show_rport_
5621 * lpfc_show_rport_##field: returns the bytes formatted in buf
5622 * @cdev: class converted to an fc_rport.
5623 * @buf: on return contains the target_field or zero.
5625 * Returns: size of formatted string.
5627 #define lpfc_rport_show_function(field, format_string, sz, cast) \
5628 static ssize_t \
5629 lpfc_show_rport_##field (struct device *dev, \
5630 struct device_attribute *attr, \
5631 char *buf) \
5633 struct fc_rport *rport = transport_class_to_rport(dev); \
5634 struct lpfc_rport_data *rdata = rport->hostdata; \
5635 return snprintf(buf, sz, format_string, \
5636 (rdata->target) ? cast rdata->target->field : 0); \
5639 #define lpfc_rport_rd_attr(field, format_string, sz) \
5640 lpfc_rport_show_function(field, format_string, sz, ) \
5641 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
5644 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
5645 * @fc_vport: The fc_vport who's symbolic name has been changed.
5647 * Description:
5648 * This function is called by the transport after the @fc_vport's symbolic name
5649 * has been changed. This function re-registers the symbolic name with the
5650 * switch to propagate the change into the fabric if the vport is active.
5652 static void
5653 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
5655 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
5657 if (vport->port_state == LPFC_VPORT_READY)
5658 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
5662 * lpfc_hba_log_verbose_init - Set hba's log verbose level
5663 * @phba: Pointer to lpfc_hba struct.
5665 * This function is called by the lpfc_get_cfgparam() routine to set the
5666 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
5667 * log message according to the module's lpfc_log_verbose parameter setting
5668 * before hba port or vport created.
5670 static void
5671 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
5673 phba->cfg_log_verbose = verbose;
5676 struct fc_function_template lpfc_transport_functions = {
5677 /* fixed attributes the driver supports */
5678 .show_host_node_name = 1,
5679 .show_host_port_name = 1,
5680 .show_host_supported_classes = 1,
5681 .show_host_supported_fc4s = 1,
5682 .show_host_supported_speeds = 1,
5683 .show_host_maxframe_size = 1,
5684 .show_host_symbolic_name = 1,
5686 /* dynamic attributes the driver supports */
5687 .get_host_port_id = lpfc_get_host_port_id,
5688 .show_host_port_id = 1,
5690 .get_host_port_type = lpfc_get_host_port_type,
5691 .show_host_port_type = 1,
5693 .get_host_port_state = lpfc_get_host_port_state,
5694 .show_host_port_state = 1,
5696 /* active_fc4s is shown but doesn't change (thus no get function) */
5697 .show_host_active_fc4s = 1,
5699 .get_host_speed = lpfc_get_host_speed,
5700 .show_host_speed = 1,
5702 .get_host_fabric_name = lpfc_get_host_fabric_name,
5703 .show_host_fabric_name = 1,
5706 * The LPFC driver treats linkdown handling as target loss events
5707 * so there are no sysfs handlers for link_down_tmo.
5710 .get_fc_host_stats = lpfc_get_stats,
5711 .reset_fc_host_stats = lpfc_reset_stats,
5713 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
5714 .show_rport_maxframe_size = 1,
5715 .show_rport_supported_classes = 1,
5717 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
5718 .show_rport_dev_loss_tmo = 1,
5720 .get_starget_port_id = lpfc_get_starget_port_id,
5721 .show_starget_port_id = 1,
5723 .get_starget_node_name = lpfc_get_starget_node_name,
5724 .show_starget_node_name = 1,
5726 .get_starget_port_name = lpfc_get_starget_port_name,
5727 .show_starget_port_name = 1,
5729 .issue_fc_host_lip = lpfc_issue_lip,
5730 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
5731 .terminate_rport_io = lpfc_terminate_rport_io,
5733 .dd_fcvport_size = sizeof(struct lpfc_vport *),
5735 .vport_disable = lpfc_vport_disable,
5737 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
5739 .bsg_request = lpfc_bsg_request,
5740 .bsg_timeout = lpfc_bsg_timeout,
5743 struct fc_function_template lpfc_vport_transport_functions = {
5744 /* fixed attributes the driver supports */
5745 .show_host_node_name = 1,
5746 .show_host_port_name = 1,
5747 .show_host_supported_classes = 1,
5748 .show_host_supported_fc4s = 1,
5749 .show_host_supported_speeds = 1,
5750 .show_host_maxframe_size = 1,
5751 .show_host_symbolic_name = 1,
5753 /* dynamic attributes the driver supports */
5754 .get_host_port_id = lpfc_get_host_port_id,
5755 .show_host_port_id = 1,
5757 .get_host_port_type = lpfc_get_host_port_type,
5758 .show_host_port_type = 1,
5760 .get_host_port_state = lpfc_get_host_port_state,
5761 .show_host_port_state = 1,
5763 /* active_fc4s is shown but doesn't change (thus no get function) */
5764 .show_host_active_fc4s = 1,
5766 .get_host_speed = lpfc_get_host_speed,
5767 .show_host_speed = 1,
5769 .get_host_fabric_name = lpfc_get_host_fabric_name,
5770 .show_host_fabric_name = 1,
5773 * The LPFC driver treats linkdown handling as target loss events
5774 * so there are no sysfs handlers for link_down_tmo.
5777 .get_fc_host_stats = lpfc_get_stats,
5778 .reset_fc_host_stats = lpfc_reset_stats,
5780 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
5781 .show_rport_maxframe_size = 1,
5782 .show_rport_supported_classes = 1,
5784 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
5785 .show_rport_dev_loss_tmo = 1,
5787 .get_starget_port_id = lpfc_get_starget_port_id,
5788 .show_starget_port_id = 1,
5790 .get_starget_node_name = lpfc_get_starget_node_name,
5791 .show_starget_node_name = 1,
5793 .get_starget_port_name = lpfc_get_starget_port_name,
5794 .show_starget_port_name = 1,
5796 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
5797 .terminate_rport_io = lpfc_terminate_rport_io,
5799 .vport_disable = lpfc_vport_disable,
5801 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
5805 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
5806 * @phba: lpfc_hba pointer.
5808 void
5809 lpfc_get_cfgparam(struct lpfc_hba *phba)
5811 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched);
5812 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset);
5813 lpfc_cr_delay_init(phba, lpfc_cr_delay);
5814 lpfc_cr_count_init(phba, lpfc_cr_count);
5815 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
5816 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
5817 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
5818 lpfc_ack0_init(phba, lpfc_ack0);
5819 lpfc_topology_init(phba, lpfc_topology);
5820 lpfc_link_speed_init(phba, lpfc_link_speed);
5821 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
5822 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo);
5823 lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
5824 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
5825 lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
5826 lpfc_use_msi_init(phba, lpfc_use_msi);
5827 lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
5828 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map);
5829 lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel);
5830 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
5831 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
5832 lpfc_EnableXLane_init(phba, lpfc_EnableXLane);
5833 if (phba->sli_rev != LPFC_SLI_REV4)
5834 phba->cfg_EnableXLane = 0;
5835 lpfc_XLanePriority_init(phba, lpfc_XLanePriority);
5836 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t)));
5837 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t)));
5838 phba->cfg_oas_lun_state = 0;
5839 phba->cfg_oas_lun_status = 0;
5840 phba->cfg_oas_flags = 0;
5841 lpfc_enable_bg_init(phba, lpfc_enable_bg);
5842 if (phba->sli_rev == LPFC_SLI_REV4)
5843 phba->cfg_poll = 0;
5844 else
5845 phba->cfg_poll = lpfc_poll;
5846 phba->cfg_soft_wwnn = 0L;
5847 phba->cfg_soft_wwpn = 0L;
5848 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
5849 lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
5850 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
5851 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
5852 lpfc_aer_support_init(phba, lpfc_aer_support);
5853 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
5854 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade);
5855 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
5856 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
5857 phba->cfg_enable_dss = 1;
5858 return;
5862 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
5863 * @vport: lpfc_vport pointer.
5865 void
5866 lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
5868 lpfc_log_verbose_init(vport, lpfc_log_verbose);
5869 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
5870 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
5871 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
5872 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
5873 lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
5874 lpfc_restrict_login_init(vport, lpfc_restrict_login);
5875 lpfc_fcp_class_init(vport, lpfc_fcp_class);
5876 lpfc_use_adisc_init(vport, lpfc_use_adisc);
5877 lpfc_first_burst_size_init(vport, lpfc_first_burst_size);
5878 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
5879 lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
5880 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
5881 lpfc_max_luns_init(vport, lpfc_max_luns);
5882 lpfc_scan_down_init(vport, lpfc_scan_down);
5883 lpfc_enable_da_id_init(vport, lpfc_enable_da_id);
5884 return;