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[SCSI] lpfc 8.2.2 : Fix locking around HBA's port_list
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_attr.c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2007 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 *******************************************************************/
21
22 #include <linux/ctype.h>
23 #include <linux/delay.h>
24 #include <linux/pci.h>
25 #include <linux/interrupt.h>
26
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_tcq.h>
31 #include <scsi/scsi_transport_fc.h>
32
33 #include "lpfc_hw.h"
34 #include "lpfc_sli.h"
35 #include "lpfc_disc.h"
36 #include "lpfc_scsi.h"
37 #include "lpfc.h"
38 #include "lpfc_logmsg.h"
39 #include "lpfc_version.h"
40 #include "lpfc_compat.h"
41 #include "lpfc_crtn.h"
42 #include "lpfc_vport.h"
43
44 #define LPFC_DEF_DEVLOSS_TMO 30
45 #define LPFC_MIN_DEVLOSS_TMO 1
46 #define LPFC_MAX_DEVLOSS_TMO 255
47
48 static void
49 lpfc_jedec_to_ascii(int incr, char hdw[])
50 {
51 int i, j;
52 for (i = 0; i < 8; i++) {
53 j = (incr & 0xf);
54 if (j <= 9)
55 hdw[7 - i] = 0x30 + j;
56 else
57 hdw[7 - i] = 0x61 + j - 10;
58 incr = (incr >> 4);
59 }
60 hdw[8] = 0;
61 return;
62 }
63
64 static ssize_t
65 lpfc_drvr_version_show(struct class_device *cdev, char *buf)
66 {
67 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
68 }
69
70 static ssize_t
71 management_version_show(struct class_device *cdev, char *buf)
72 {
73 return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n");
74 }
75
76 static ssize_t
77 lpfc_info_show(struct class_device *cdev, char *buf)
78 {
79 struct Scsi_Host *host = class_to_shost(cdev);
80
81 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
82 }
83
84 static ssize_t
85 lpfc_serialnum_show(struct class_device *cdev, char *buf)
86 {
87 struct Scsi_Host *shost = class_to_shost(cdev);
88 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
89 struct lpfc_hba *phba = vport->phba;
90
91 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
92 }
93
94 static ssize_t
95 lpfc_modeldesc_show(struct class_device *cdev, char *buf)
96 {
97 struct Scsi_Host *shost = class_to_shost(cdev);
98 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
99 struct lpfc_hba *phba = vport->phba;
100
101 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
102 }
103
104 static ssize_t
105 lpfc_modelname_show(struct class_device *cdev, char *buf)
106 {
107 struct Scsi_Host *shost = class_to_shost(cdev);
108 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
109 struct lpfc_hba *phba = vport->phba;
110
111 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
112 }
113
114 static ssize_t
115 lpfc_programtype_show(struct class_device *cdev, char *buf)
116 {
117 struct Scsi_Host *shost = class_to_shost(cdev);
118 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
119 struct lpfc_hba *phba = vport->phba;
120
121 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
122 }
123
124 static ssize_t
125 lpfc_vportnum_show(struct class_device *cdev, char *buf)
126 {
127 struct Scsi_Host *shost = class_to_shost(cdev);
128 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
129 struct lpfc_hba *phba = vport->phba;
130
131 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
132 }
133
134 static ssize_t
135 lpfc_fwrev_show(struct class_device *cdev, char *buf)
136 {
137 struct Scsi_Host *shost = class_to_shost(cdev);
138 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
139 struct lpfc_hba *phba = vport->phba;
140 char fwrev[32];
141
142 lpfc_decode_firmware_rev(phba, fwrev, 1);
143 return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
144 }
145
146 static ssize_t
147 lpfc_hdw_show(struct class_device *cdev, char *buf)
148 {
149 char hdw[9];
150 struct Scsi_Host *shost = class_to_shost(cdev);
151 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
152 struct lpfc_hba *phba = vport->phba;
153 lpfc_vpd_t *vp = &phba->vpd;
154
155 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
156 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
157 }
158 static ssize_t
159 lpfc_option_rom_version_show(struct class_device *cdev, char *buf)
160 {
161 struct Scsi_Host *shost = class_to_shost(cdev);
162 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
163 struct lpfc_hba *phba = vport->phba;
164
165 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
166 }
167 static ssize_t
168 lpfc_state_show(struct class_device *cdev, char *buf)
169 {
170 struct Scsi_Host *shost = class_to_shost(cdev);
171 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
172 struct lpfc_hba *phba = vport->phba;
173 int len = 0;
174
175 switch (phba->link_state) {
176 case LPFC_LINK_UNKNOWN:
177 case LPFC_WARM_START:
178 case LPFC_INIT_START:
179 case LPFC_INIT_MBX_CMDS:
180 case LPFC_LINK_DOWN:
181 case LPFC_HBA_ERROR:
182 len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
183 break;
184 case LPFC_LINK_UP:
185 case LPFC_CLEAR_LA:
186 case LPFC_HBA_READY:
187 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - \n");
188
189 switch (vport->port_state) {
190 len += snprintf(buf + len, PAGE_SIZE-len,
191 "initializing\n");
192 break;
193 case LPFC_LOCAL_CFG_LINK:
194 len += snprintf(buf + len, PAGE_SIZE-len,
195 "Configuring Link\n");
196 break;
197 case LPFC_FDISC:
198 case LPFC_FLOGI:
199 case LPFC_FABRIC_CFG_LINK:
200 case LPFC_NS_REG:
201 case LPFC_NS_QRY:
202 case LPFC_BUILD_DISC_LIST:
203 case LPFC_DISC_AUTH:
204 len += snprintf(buf + len, PAGE_SIZE - len,
205 "Discovery\n");
206 break;
207 case LPFC_VPORT_READY:
208 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
209 break;
210
211 case LPFC_VPORT_FAILED:
212 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
213 break;
214
215 case LPFC_VPORT_UNKNOWN:
216 len += snprintf(buf + len, PAGE_SIZE - len,
217 "Unknown\n");
218 break;
219 }
220
221 if (phba->fc_topology == TOPOLOGY_LOOP) {
222 if (vport->fc_flag & FC_PUBLIC_LOOP)
223 len += snprintf(buf + len, PAGE_SIZE-len,
224 " Public Loop\n");
225 else
226 len += snprintf(buf + len, PAGE_SIZE-len,
227 " Private Loop\n");
228 } else {
229 if (vport->fc_flag & FC_FABRIC)
230 len += snprintf(buf + len, PAGE_SIZE-len,
231 " Fabric\n");
232 else
233 len += snprintf(buf + len, PAGE_SIZE-len,
234 " Point-2-Point\n");
235 }
236 }
237
238 return len;
239 }
240
241 static ssize_t
242 lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf)
243 {
244 struct Scsi_Host *shost = class_to_shost(cdev);
245 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
246
247 return snprintf(buf, PAGE_SIZE, "%d\n",
248 vport->fc_map_cnt + vport->fc_unmap_cnt);
249 }
250
251
252 static int
253 lpfc_issue_lip(struct Scsi_Host *shost)
254 {
255 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
256 struct lpfc_hba *phba = vport->phba;
257 LPFC_MBOXQ_t *pmboxq;
258 int mbxstatus = MBXERR_ERROR;
259
260 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
261 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) ||
262 (vport->port_state != LPFC_VPORT_READY))
263 return -EPERM;
264
265 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
266
267 if (!pmboxq)
268 return -ENOMEM;
269
270 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
271 pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
272 pmboxq->mb.mbxOwner = OWN_HOST;
273
274 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
275
276 if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
277 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
278 lpfc_init_link(phba, pmboxq, phba->cfg_topology,
279 phba->cfg_link_speed);
280 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
281 phba->fc_ratov * 2);
282 }
283
284 lpfc_set_loopback_flag(phba);
285 if (mbxstatus != MBX_TIMEOUT)
286 mempool_free(pmboxq, phba->mbox_mem_pool);
287
288 if (mbxstatus == MBXERR_ERROR)
289 return -EIO;
290
291 return 0;
292 }
293
294 static int
295 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
296 {
297 struct completion online_compl;
298 struct lpfc_sli_ring *pring;
299 struct lpfc_sli *psli;
300 int status = 0;
301 int cnt = 0;
302 int i;
303
304 init_completion(&online_compl);
305 lpfc_workq_post_event(phba, &status, &online_compl,
306 LPFC_EVT_OFFLINE_PREP);
307 wait_for_completion(&online_compl);
308
309 if (status != 0)
310 return -EIO;
311
312 psli = &phba->sli;
313
314 for (i = 0; i < psli->num_rings; i++) {
315 pring = &psli->ring[i];
316 /* The linkdown event takes 30 seconds to timeout. */
317 while (pring->txcmplq_cnt) {
318 msleep(10);
319 if (cnt++ > 3000) {
320 lpfc_printf_log(phba,
321 KERN_WARNING, LOG_INIT,
322 "%d:0466 Outstanding IO when "
323 "bringing Adapter offline\n",
324 phba->brd_no);
325 break;
326 }
327 }
328 }
329
330 init_completion(&online_compl);
331 lpfc_workq_post_event(phba, &status, &online_compl, type);
332 wait_for_completion(&online_compl);
333
334 if (status != 0)
335 return -EIO;
336
337 return 0;
338 }
339
340 static int
341 lpfc_selective_reset(struct lpfc_hba *phba)
342 {
343 struct completion online_compl;
344 int status = 0;
345
346 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
347
348 if (status != 0)
349 return status;
350
351 init_completion(&online_compl);
352 lpfc_workq_post_event(phba, &status, &online_compl,
353 LPFC_EVT_ONLINE);
354 wait_for_completion(&online_compl);
355
356 if (status != 0)
357 return -EIO;
358
359 return 0;
360 }
361
362 static ssize_t
363 lpfc_issue_reset(struct class_device *cdev, const char *buf, size_t count)
364 {
365 struct Scsi_Host *shost = class_to_shost(cdev);
366 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
367 struct lpfc_hba *phba = vport->phba;
368
369 int status = -EINVAL;
370
371 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
372 status = lpfc_selective_reset(phba);
373
374 if (status == 0)
375 return strlen(buf);
376 else
377 return status;
378 }
379
380 static ssize_t
381 lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
382 {
383 struct Scsi_Host *shost = class_to_shost(cdev);
384 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
385 struct lpfc_hba *phba = vport->phba;
386
387 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
388 }
389
390 static ssize_t
391 lpfc_board_mode_show(struct class_device *cdev, char *buf)
392 {
393 struct Scsi_Host *shost = class_to_shost(cdev);
394 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
395 struct lpfc_hba *phba = vport->phba;
396 char * state;
397
398 if (phba->link_state == LPFC_HBA_ERROR)
399 state = "error";
400 else if (phba->link_state == LPFC_WARM_START)
401 state = "warm start";
402 else if (phba->link_state == LPFC_INIT_START)
403 state = "offline";
404 else
405 state = "online";
406
407 return snprintf(buf, PAGE_SIZE, "%s\n", state);
408 }
409
410 static ssize_t
411 lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
412 {
413 struct Scsi_Host *shost = class_to_shost(cdev);
414 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
415 struct lpfc_hba *phba = vport->phba;
416 struct completion online_compl;
417 int status=0;
418
419 init_completion(&online_compl);
420
421 if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
422 lpfc_workq_post_event(phba, &status, &online_compl,
423 LPFC_EVT_ONLINE);
424 wait_for_completion(&online_compl);
425 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
426 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
427 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
428 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
429 else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
430 status = lpfc_do_offline(phba, LPFC_EVT_KILL);
431 else
432 return -EINVAL;
433
434 if (!status)
435 return strlen(buf);
436 else
437 return -EIO;
438 }
439
440 int
441 lpfc_get_hba_info(struct lpfc_hba *phba,
442 uint32_t *mxri, uint32_t *axri,
443 uint32_t *mrpi, uint32_t *arpi,
444 uint32_t *mvpi, uint32_t *avpi)
445 {
446 struct lpfc_sli *psli = &phba->sli;
447 LPFC_MBOXQ_t *pmboxq;
448 MAILBOX_t *pmb;
449 int rc = 0;
450
451 /*
452 * prevent udev from issuing mailbox commands until the port is
453 * configured.
454 */
455 if (phba->link_state < LPFC_LINK_DOWN ||
456 !phba->mbox_mem_pool ||
457 (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
458 return 0;
459
460 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
461 return 0;
462
463 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
464 if (!pmboxq)
465 return 0;
466 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
467
468 pmb = &pmboxq->mb;
469 pmb->mbxCommand = MBX_READ_CONFIG;
470 pmb->mbxOwner = OWN_HOST;
471 pmboxq->context1 = NULL;
472
473 if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
474 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
475 rc = MBX_NOT_FINISHED;
476 else
477 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
478
479 if (rc != MBX_SUCCESS) {
480 if (rc != MBX_TIMEOUT)
481 mempool_free(pmboxq, phba->mbox_mem_pool);
482 return 0;
483 }
484
485 if (mrpi)
486 *mrpi = pmb->un.varRdConfig.max_rpi;
487 if (arpi)
488 *arpi = pmb->un.varRdConfig.avail_rpi;
489 if (mxri)
490 *mxri = pmb->un.varRdConfig.max_xri;
491 if (axri)
492 *axri = pmb->un.varRdConfig.avail_xri;
493 if (mvpi)
494 *mvpi = pmb->un.varRdConfig.max_vpi;
495 if (avpi)
496 *avpi = pmb->un.varRdConfig.avail_vpi;
497
498 mempool_free(pmboxq, phba->mbox_mem_pool);
499 return 1;
500 }
501
502 static ssize_t
503 lpfc_max_rpi_show(struct class_device *cdev, char *buf)
504 {
505 struct Scsi_Host *shost = class_to_shost(cdev);
506 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
507 struct lpfc_hba *phba = vport->phba;
508 uint32_t cnt;
509
510 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
511 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
512 return snprintf(buf, PAGE_SIZE, "Unknown\n");
513 }
514
515 static ssize_t
516 lpfc_used_rpi_show(struct class_device *cdev, char *buf)
517 {
518 struct Scsi_Host *shost = class_to_shost(cdev);
519 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
520 struct lpfc_hba *phba = vport->phba;
521 uint32_t cnt, acnt;
522
523 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
524 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
525 return snprintf(buf, PAGE_SIZE, "Unknown\n");
526 }
527
528 static ssize_t
529 lpfc_max_xri_show(struct class_device *cdev, char *buf)
530 {
531 struct Scsi_Host *shost = class_to_shost(cdev);
532 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
533 struct lpfc_hba *phba = vport->phba;
534 uint32_t cnt;
535
536 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
537 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
538 return snprintf(buf, PAGE_SIZE, "Unknown\n");
539 }
540
541 static ssize_t
542 lpfc_used_xri_show(struct class_device *cdev, char *buf)
543 {
544 struct Scsi_Host *shost = class_to_shost(cdev);
545 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
546 struct lpfc_hba *phba = vport->phba;
547 uint32_t cnt, acnt;
548
549 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
550 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
551 return snprintf(buf, PAGE_SIZE, "Unknown\n");
552 }
553
554 static ssize_t
555 lpfc_max_vpi_show(struct class_device *cdev, char *buf)
556 {
557 struct Scsi_Host *shost = class_to_shost(cdev);
558 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
559 struct lpfc_hba *phba = vport->phba;
560 uint32_t cnt;
561
562 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
563 return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
564 return snprintf(buf, PAGE_SIZE, "Unknown\n");
565 }
566
567 static ssize_t
568 lpfc_used_vpi_show(struct class_device *cdev, char *buf)
569 {
570 struct Scsi_Host *shost = class_to_shost(cdev);
571 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
572 struct lpfc_hba *phba = vport->phba;
573 uint32_t cnt, acnt;
574
575 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
576 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
577 return snprintf(buf, PAGE_SIZE, "Unknown\n");
578 }
579
580 static ssize_t
581 lpfc_npiv_info_show(struct class_device *cdev, char *buf)
582 {
583 struct Scsi_Host *shost = class_to_shost(cdev);
584 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
585 struct lpfc_hba *phba = vport->phba;
586
587 if (!(phba->max_vpi))
588 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
589 if (vport->port_type == LPFC_PHYSICAL_PORT)
590 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
591 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
592 }
593
594 static ssize_t
595 lpfc_poll_show(struct class_device *cdev, char *buf)
596 {
597 struct Scsi_Host *shost = class_to_shost(cdev);
598 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
599 struct lpfc_hba *phba = vport->phba;
600
601 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
602 }
603
604 static ssize_t
605 lpfc_poll_store(struct class_device *cdev, const char *buf,
606 size_t count)
607 {
608 struct Scsi_Host *shost = class_to_shost(cdev);
609 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
610 struct lpfc_hba *phba = vport->phba;
611 uint32_t creg_val;
612 uint32_t old_val;
613 int val=0;
614
615 if (!isdigit(buf[0]))
616 return -EINVAL;
617
618 if (sscanf(buf, "%i", &val) != 1)
619 return -EINVAL;
620
621 if ((val & 0x3) != val)
622 return -EINVAL;
623
624 spin_lock_irq(&phba->hbalock);
625
626 old_val = phba->cfg_poll;
627
628 if (val & ENABLE_FCP_RING_POLLING) {
629 if ((val & DISABLE_FCP_RING_INT) &&
630 !(old_val & DISABLE_FCP_RING_INT)) {
631 creg_val = readl(phba->HCregaddr);
632 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
633 writel(creg_val, phba->HCregaddr);
634 readl(phba->HCregaddr); /* flush */
635
636 lpfc_poll_start_timer(phba);
637 }
638 } else if (val != 0x0) {
639 spin_unlock_irq(&phba->hbalock);
640 return -EINVAL;
641 }
642
643 if (!(val & DISABLE_FCP_RING_INT) &&
644 (old_val & DISABLE_FCP_RING_INT))
645 {
646 spin_unlock_irq(&phba->hbalock);
647 del_timer(&phba->fcp_poll_timer);
648 spin_lock_irq(&phba->hbalock);
649 creg_val = readl(phba->HCregaddr);
650 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
651 writel(creg_val, phba->HCregaddr);
652 readl(phba->HCregaddr); /* flush */
653 }
654
655 phba->cfg_poll = val;
656
657 spin_unlock_irq(&phba->hbalock);
658
659 return strlen(buf);
660 }
661
662 #define lpfc_param_show(attr) \
663 static ssize_t \
664 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
665 { \
666 struct Scsi_Host *shost = class_to_shost(cdev);\
667 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
668 struct lpfc_hba *phba = vport->phba;\
669 int val = 0;\
670 val = phba->cfg_##attr;\
671 return snprintf(buf, PAGE_SIZE, "%d\n",\
672 phba->cfg_##attr);\
673 }
674
675 #define lpfc_param_hex_show(attr) \
676 static ssize_t \
677 lpfc_##attr##_show(struct class_device *cdev, char *buf) \
678 { \
679 struct Scsi_Host *shost = class_to_shost(cdev);\
680 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
681 struct lpfc_hba *phba = vport->phba;\
682 int val = 0;\
683 val = phba->cfg_##attr;\
684 return snprintf(buf, PAGE_SIZE, "%#x\n",\
685 phba->cfg_##attr);\
686 }
687
688 #define lpfc_param_init(attr, default, minval, maxval) \
689 static int \
690 lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
691 { \
692 if (val >= minval && val <= maxval) {\
693 phba->cfg_##attr = val;\
694 return 0;\
695 }\
696 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
697 "%d:0449 lpfc_"#attr" attribute cannot be set to %d, "\
698 "allowed range is ["#minval", "#maxval"]\n", \
699 phba->brd_no, val); \
700 phba->cfg_##attr = default;\
701 return -EINVAL;\
702 }
703
704 #define lpfc_param_set(attr, default, minval, maxval) \
705 static int \
706 lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
707 { \
708 if (val >= minval && val <= maxval) {\
709 phba->cfg_##attr = val;\
710 return 0;\
711 }\
712 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
713 "%d:0450 lpfc_"#attr" attribute cannot be set to %d, "\
714 "allowed range is ["#minval", "#maxval"]\n", \
715 phba->brd_no, val); \
716 return -EINVAL;\
717 }
718
719 #define lpfc_param_store(attr) \
720 static ssize_t \
721 lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
722 { \
723 struct Scsi_Host *shost = class_to_shost(cdev);\
724 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
725 struct lpfc_hba *phba = vport->phba;\
726 int val=0;\
727 if (!isdigit(buf[0]))\
728 return -EINVAL;\
729 if (sscanf(buf, "%i", &val) != 1)\
730 return -EINVAL;\
731 if (lpfc_##attr##_set(phba, val) == 0) \
732 return strlen(buf);\
733 else \
734 return -EINVAL;\
735 }
736
737 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
738 static int lpfc_##name = defval;\
739 module_param(lpfc_##name, int, 0);\
740 MODULE_PARM_DESC(lpfc_##name, desc);\
741 lpfc_param_init(name, defval, minval, maxval)
742
743 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
744 static int lpfc_##name = defval;\
745 module_param(lpfc_##name, int, 0);\
746 MODULE_PARM_DESC(lpfc_##name, desc);\
747 lpfc_param_show(name)\
748 lpfc_param_init(name, defval, minval, maxval)\
749 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
750
751 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
752 static int lpfc_##name = defval;\
753 module_param(lpfc_##name, int, 0);\
754 MODULE_PARM_DESC(lpfc_##name, desc);\
755 lpfc_param_show(name)\
756 lpfc_param_init(name, defval, minval, maxval)\
757 lpfc_param_set(name, defval, minval, maxval)\
758 lpfc_param_store(name)\
759 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
760 lpfc_##name##_show, lpfc_##name##_store)
761
762 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
763 static int lpfc_##name = defval;\
764 module_param(lpfc_##name, int, 0);\
765 MODULE_PARM_DESC(lpfc_##name, desc);\
766 lpfc_param_hex_show(name)\
767 lpfc_param_init(name, defval, minval, maxval)\
768 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
769
770 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
771 static int lpfc_##name = defval;\
772 module_param(lpfc_##name, int, 0);\
773 MODULE_PARM_DESC(lpfc_##name, desc);\
774 lpfc_param_hex_show(name)\
775 lpfc_param_init(name, defval, minval, maxval)\
776 lpfc_param_set(name, defval, minval, maxval)\
777 lpfc_param_store(name)\
778 static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
779 lpfc_##name##_show, lpfc_##name##_store)
780
781 static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
782 static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
783 static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
784 static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
785 static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
786 static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
787 static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
788 static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
789 static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL);
790 static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO,
791 lpfc_option_rom_version_show, NULL);
792 static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO,
793 lpfc_num_discovered_ports_show, NULL);
794 static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
795 static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show,
796 NULL);
797 static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
798 NULL);
799 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
800 lpfc_board_mode_show, lpfc_board_mode_store);
801 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
802 static CLASS_DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
803 static CLASS_DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
804 static CLASS_DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
805 static CLASS_DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
806 static CLASS_DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
807 static CLASS_DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
808 static CLASS_DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
809
810
811 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
812
813 static ssize_t
814 lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
815 size_t count)
816 {
817 struct Scsi_Host *shost = class_to_shost(cdev);
818 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
819 struct lpfc_hba *phba = vport->phba;
820 unsigned int cnt = count;
821
822 /*
823 * We're doing a simple sanity check for soft_wwpn setting.
824 * We require that the user write a specific key to enable
825 * the soft_wwpn attribute to be settable. Once the attribute
826 * is written, the enable key resets. If further updates are
827 * desired, the key must be written again to re-enable the
828 * attribute.
829 *
830 * The "key" is not secret - it is a hardcoded string shown
831 * here. The intent is to protect against the random user or
832 * application that is just writing attributes.
833 */
834
835 /* count may include a LF at end of string */
836 if (buf[cnt-1] == '\n')
837 cnt--;
838
839 if ((cnt != strlen(lpfc_soft_wwn_key)) ||
840 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
841 return -EINVAL;
842
843 phba->soft_wwn_enable = 1;
844 return count;
845 }
846 static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
847 lpfc_soft_wwn_enable_store);
848
849 static ssize_t
850 lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
851 {
852 struct Scsi_Host *shost = class_to_shost(cdev);
853 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
854 struct lpfc_hba *phba = vport->phba;
855
856 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
857 (unsigned long long)phba->cfg_soft_wwpn);
858 }
859
860
861 static ssize_t
862 lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
863 {
864 struct Scsi_Host *shost = class_to_shost(cdev);
865 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
866 struct lpfc_hba *phba = vport->phba;
867 struct completion online_compl;
868 int stat1=0, stat2=0;
869 unsigned int i, j, cnt=count;
870 u8 wwpn[8];
871
872 /* count may include a LF at end of string */
873 if (buf[cnt-1] == '\n')
874 cnt--;
875
876 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
877 ((cnt == 17) && (*buf++ != 'x')) ||
878 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
879 return -EINVAL;
880
881 phba->soft_wwn_enable = 0;
882
883 memset(wwpn, 0, sizeof(wwpn));
884
885 /* Validate and store the new name */
886 for (i=0, j=0; i < 16; i++) {
887 if ((*buf >= 'a') && (*buf <= 'f'))
888 j = ((j << 4) | ((*buf++ -'a') + 10));
889 else if ((*buf >= 'A') && (*buf <= 'F'))
890 j = ((j << 4) | ((*buf++ -'A') + 10));
891 else if ((*buf >= '0') && (*buf <= '9'))
892 j = ((j << 4) | (*buf++ -'0'));
893 else
894 return -EINVAL;
895 if (i % 2) {
896 wwpn[i/2] = j & 0xff;
897 j = 0;
898 }
899 }
900 phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
901 fc_host_port_name(shost) = phba->cfg_soft_wwpn;
902 if (phba->cfg_soft_wwnn)
903 fc_host_node_name(shost) = phba->cfg_soft_wwnn;
904
905 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
906 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
907
908 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
909 if (stat1)
910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
911 "%d:0463 lpfc_soft_wwpn attribute set failed to reinit "
912 "adapter - %d\n", phba->brd_no, stat1);
913
914 init_completion(&online_compl);
915 lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
916 wait_for_completion(&online_compl);
917 if (stat2)
918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
919 "%d:0464 lpfc_soft_wwpn attribute set failed to reinit "
920 "adapter - %d\n", phba->brd_no, stat2);
921
922 return (stat1 || stat2) ? -EIO : count;
923 }
924 static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
925 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
926
927 static ssize_t
928 lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
929 {
930 struct Scsi_Host *host = class_to_shost(cdev);
931 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
932 return snprintf(buf, PAGE_SIZE, "0x%llx\n",
933 (unsigned long long)phba->cfg_soft_wwnn);
934 }
935
936
937 static ssize_t
938 lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
939 {
940 struct Scsi_Host *host = class_to_shost(cdev);
941 struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
942 unsigned int i, j, cnt=count;
943 u8 wwnn[8];
944
945 /* count may include a LF at end of string */
946 if (buf[cnt-1] == '\n')
947 cnt--;
948
949 if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
950 ((cnt == 17) && (*buf++ != 'x')) ||
951 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
952 return -EINVAL;
953
954 /*
955 * Allow wwnn to be set many times, as long as the enable is set.
956 * However, once the wwpn is set, everything locks.
957 */
958
959 memset(wwnn, 0, sizeof(wwnn));
960
961 /* Validate and store the new name */
962 for (i=0, j=0; i < 16; i++) {
963 if ((*buf >= 'a') && (*buf <= 'f'))
964 j = ((j << 4) | ((*buf++ -'a') + 10));
965 else if ((*buf >= 'A') && (*buf <= 'F'))
966 j = ((j << 4) | ((*buf++ -'A') + 10));
967 else if ((*buf >= '0') && (*buf <= '9'))
968 j = ((j << 4) | (*buf++ -'0'));
969 else
970 return -EINVAL;
971 if (i % 2) {
972 wwnn[i/2] = j & 0xff;
973 j = 0;
974 }
975 }
976 phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
977
978 dev_printk(KERN_NOTICE, &phba->pcidev->dev,
979 "lpfc%d: soft_wwnn set. Value will take effect upon "
980 "setting of the soft_wwpn\n", phba->brd_no);
981
982 return count;
983 }
984 static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
985 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
986
987
988 static int lpfc_poll = 0;
989 module_param(lpfc_poll, int, 0);
990 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
991 " 0 - none,"
992 " 1 - poll with interrupts enabled"
993 " 3 - poll and disable FCP ring interrupts");
994
995 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
996 lpfc_poll_show, lpfc_poll_store);
997
998 int lpfc_sli_mode = 0;
999 module_param(lpfc_sli_mode, int, 0);
1000 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
1001 " 0 - auto (SLI-3 if supported),"
1002 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
1003 " 3 - select SLI-3");
1004
1005 LPFC_ATTR_R(npiv_enable, 0, 0, 1, "Enable NPIV functionality");
1006
1007 /*
1008 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
1009 # until the timer expires. Value range is [0,255]. Default value is 30.
1010 */
1011 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1012 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
1013 module_param(lpfc_nodev_tmo, int, 0);
1014 MODULE_PARM_DESC(lpfc_nodev_tmo,
1015 "Seconds driver will hold I/O waiting "
1016 "for a device to come back");
1017 static ssize_t
1018 lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
1019 {
1020 struct Scsi_Host *shost = class_to_shost(cdev);
1021 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1022 struct lpfc_hba *phba = vport->phba;
1023 int val = 0;
1024 val = phba->cfg_devloss_tmo;
1025 return snprintf(buf, PAGE_SIZE, "%d\n",
1026 phba->cfg_devloss_tmo);
1027 }
1028
1029 static int
1030 lpfc_nodev_tmo_init(struct lpfc_hba *phba, int val)
1031 {
1032 static int warned;
1033 if (phba->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
1034 phba->cfg_nodev_tmo = phba->cfg_devloss_tmo;
1035 if (!warned && val != LPFC_DEF_DEVLOSS_TMO) {
1036 warned = 1;
1037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1038 "%d:0402 Ignoring nodev_tmo module "
1039 "parameter because devloss_tmo is"
1040 " set.\n",
1041 phba->brd_no);
1042 }
1043 return 0;
1044 }
1045
1046 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1047 phba->cfg_nodev_tmo = val;
1048 phba->cfg_devloss_tmo = val;
1049 return 0;
1050 }
1051 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1052 "%d:0400 lpfc_nodev_tmo attribute cannot be set to %d, "
1053 "allowed range is [%d, %d]\n",
1054 phba->brd_no, val,
1055 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
1056 phba->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
1057 return -EINVAL;
1058 }
1059
1060 static void
1061 lpfc_update_rport_devloss_tmo(struct lpfc_hba *phba)
1062 {
1063 struct lpfc_vport **vports;
1064 struct Scsi_Host *shost;
1065 struct lpfc_nodelist *ndlp;
1066 int i;
1067
1068 vports = lpfc_create_vport_work_array(phba);
1069 if (vports != NULL)
1070 for(i = 0; i < LPFC_MAX_VPORTS && vports[i] != NULL; i++) {
1071 shost = lpfc_shost_from_vport(vports[i]);
1072 spin_lock_irq(shost->host_lock);
1073 list_for_each_entry(ndlp, &vports[i]->fc_nodes,
1074 nlp_listp)
1075 if (ndlp->rport)
1076 ndlp->rport->dev_loss_tmo =
1077 phba->cfg_devloss_tmo;
1078 spin_unlock_irq(shost->host_lock);
1079 }
1080 lpfc_destroy_vport_work_array(vports);
1081 }
1082
1083 static int
1084 lpfc_nodev_tmo_set(struct lpfc_hba *phba, int val)
1085 {
1086 if (phba->dev_loss_tmo_changed ||
1087 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
1088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1089 "%d:0401 Ignoring change to nodev_tmo "
1090 "because devloss_tmo is set.\n",
1091 phba->brd_no);
1092 return 0;
1093 }
1094
1095 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1096 phba->cfg_nodev_tmo = val;
1097 phba->cfg_devloss_tmo = val;
1098 lpfc_update_rport_devloss_tmo(phba);
1099 return 0;
1100 }
1101
1102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1103 "%d:0403 lpfc_nodev_tmo attribute cannot be set to %d, "
1104 "allowed range is [%d, %d]\n",
1105 phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
1106 LPFC_MAX_DEVLOSS_TMO);
1107 return -EINVAL;
1108 }
1109
1110 lpfc_param_store(nodev_tmo)
1111
1112 static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
1113 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
1114
1115 /*
1116 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
1117 # disappear until the timer expires. Value range is [0,255]. Default
1118 # value is 30.
1119 */
1120 module_param(lpfc_devloss_tmo, int, 0);
1121 MODULE_PARM_DESC(lpfc_devloss_tmo,
1122 "Seconds driver will hold I/O waiting "
1123 "for a device to come back");
1124 lpfc_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
1125 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
1126 lpfc_param_show(devloss_tmo)
1127 static int
1128 lpfc_devloss_tmo_set(struct lpfc_hba *phba, int val)
1129 {
1130 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
1131 phba->cfg_nodev_tmo = val;
1132 phba->cfg_devloss_tmo = val;
1133 phba->dev_loss_tmo_changed = 1;
1134 lpfc_update_rport_devloss_tmo(phba);
1135 return 0;
1136 }
1137
1138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1139 "%d:0404 lpfc_devloss_tmo attribute cannot be set to"
1140 " %d, allowed range is [%d, %d]\n",
1141 phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
1142 LPFC_MAX_DEVLOSS_TMO);
1143 return -EINVAL;
1144 }
1145
1146 lpfc_param_store(devloss_tmo)
1147 static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
1148 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
1149
1150 /*
1151 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
1152 # deluged with LOTS of information.
1153 # You can set a bit mask to record specific types of verbose messages:
1154 #
1155 # LOG_ELS 0x1 ELS events
1156 # LOG_DISCOVERY 0x2 Link discovery events
1157 # LOG_MBOX 0x4 Mailbox events
1158 # LOG_INIT 0x8 Initialization events
1159 # LOG_LINK_EVENT 0x10 Link events
1160 # LOG_FCP 0x40 FCP traffic history
1161 # LOG_NODE 0x80 Node table events
1162 # LOG_MISC 0x400 Miscellaneous events
1163 # LOG_SLI 0x800 SLI events
1164 # LOG_FCP_ERROR 0x1000 Only log FCP errors
1165 # LOG_LIBDFC 0x2000 LIBDFC events
1166 # LOG_ALL_MSG 0xffff LOG all messages
1167 */
1168 LPFC_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask");
1169
1170 /*
1171 # lun_queue_depth: This parameter is used to limit the number of outstanding
1172 # commands per FCP LUN. Value range is [1,128]. Default value is 30.
1173 */
1174 LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
1175 "Max number of FCP commands we can queue to a specific LUN");
1176
1177 /*
1178 # hba_queue_depth: This parameter is used to limit the number of outstanding
1179 # commands per lpfc HBA. Value range is [32,8192]. If this parameter
1180 # value is greater than the maximum number of exchanges supported by the HBA,
1181 # then maximum number of exchanges supported by the HBA is used to determine
1182 # the hba_queue_depth.
1183 */
1184 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
1185 "Max number of FCP commands we can queue to a lpfc HBA");
1186
1187 /*
1188 # peer_port_login: This parameter allows/prevents logins
1189 # between peer ports hosted on the same physical port.
1190 # When this parameter is set 0 peer ports of same physical port
1191 # are not allowed to login to each other.
1192 # When this parameter is set 1 peer ports of same physical port
1193 # are allowed to login to each other.
1194 # Default value of this parameter is 0.
1195 */
1196 LPFC_ATTR_R(peer_port_login, 0, 0, 1,
1197 "Allow peer ports on the same physical port to login to each "
1198 "other.");
1199
1200 /*
1201 # vport_restrict_login: This parameter allows/prevents logins
1202 # between Virtual Ports and remote initiators.
1203 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
1204 # other initiators and will attempt to PLOGI all remote ports.
1205 # When this parameter is set (1) Virtual Ports will reject PLOGIs from
1206 # remote ports and will not attempt to PLOGI to other initiators.
1207 # This parameter does not restrict to the physical port.
1208 # This parameter does not restrict logins to Fabric resident remote ports.
1209 # Default value of this parameter is 1.
1210 */
1211 LPFC_ATTR_RW(vport_restrict_login, 1, 0, 1,
1212 "Restrict virtual ports login to remote initiators.");
1213
1214 /*
1215 # Some disk devices have a "select ID" or "select Target" capability.
1216 # From a protocol standpoint "select ID" usually means select the
1217 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative
1218 # annex" which contains a table that maps a "select ID" (a number
1219 # between 0 and 7F) to an ALPA. By default, for compatibility with
1220 # older drivers, the lpfc driver scans this table from low ALPA to high
1221 # ALPA.
1222 #
1223 # Turning on the scan-down variable (on = 1, off = 0) will
1224 # cause the lpfc driver to use an inverted table, effectively
1225 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
1226 #
1227 # (Note: This "select ID" functionality is a LOOP ONLY characteristic
1228 # and will not work across a fabric. Also this parameter will take
1229 # effect only in the case when ALPA map is not available.)
1230 */
1231 LPFC_ATTR_R(scan_down, 1, 0, 1,
1232 "Start scanning for devices from highest ALPA to lowest");
1233
1234 /*
1235 # lpfc_topology: link topology for init link
1236 # 0x0 = attempt loop mode then point-to-point
1237 # 0x01 = internal loopback mode
1238 # 0x02 = attempt point-to-point mode only
1239 # 0x04 = attempt loop mode only
1240 # 0x06 = attempt point-to-point mode then loop
1241 # Set point-to-point mode if you want to run as an N_Port.
1242 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
1243 # Default value is 0.
1244 */
1245 LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
1246
1247 /*
1248 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
1249 # connection.
1250 # 0 = auto select (default)
1251 # 1 = 1 Gigabaud
1252 # 2 = 2 Gigabaud
1253 # 4 = 4 Gigabaud
1254 # 8 = 8 Gigabaud
1255 # Value range is [0,8]. Default value is 0.
1256 */
1257 LPFC_ATTR_R(link_speed, 0, 0, 8, "Select link speed");
1258
1259 /*
1260 # lpfc_fcp_class: Determines FC class to use for the FCP protocol.
1261 # Value range is [2,3]. Default value is 3.
1262 */
1263 LPFC_ATTR_R(fcp_class, 3, 2, 3,
1264 "Select Fibre Channel class of service for FCP sequences");
1265
1266 /*
1267 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
1268 # is [0,1]. Default value is 0.
1269 */
1270 LPFC_ATTR_RW(use_adisc, 0, 0, 1,
1271 "Use ADISC on rediscovery to authenticate FCP devices");
1272
1273 /*
1274 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1275 # range is [0,1]. Default value is 0.
1276 */
1277 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
1278
1279 /*
1280 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
1281 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
1282 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
1283 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
1284 # cr_delay is set to 0.
1285 */
1286 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
1287 "interrupt response is generated");
1288
1289 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
1290 "interrupt response is generated");
1291
1292 /*
1293 # lpfc_multi_ring_support: Determines how many rings to spread available
1294 # cmd/rsp IOCB entries across.
1295 # Value range is [1,2]. Default value is 1.
1296 */
1297 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
1298 "SLI rings to spread IOCB entries across");
1299
1300 /*
1301 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this
1302 # identifies what rctl value to configure the additional ring for.
1303 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
1304 */
1305 LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
1306 255, "Identifies RCTL for additional ring configuration");
1307
1308 /*
1309 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this
1310 # identifies what type value to configure the additional ring for.
1311 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
1312 */
1313 LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
1314 255, "Identifies TYPE for additional ring configuration");
1315
1316 /*
1317 # lpfc_fdmi_on: controls FDMI support.
1318 # 0 = no FDMI support
1319 # 1 = support FDMI without attribute of hostname
1320 # 2 = support FDMI with attribute of hostname
1321 # Value range [0,2]. Default value is 0.
1322 */
1323 LPFC_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
1324
1325 /*
1326 # Specifies the maximum number of ELS cmds we can have outstanding (for
1327 # discovery). Value range is [1,64]. Default value = 32.
1328 */
1329 LPFC_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
1330 "during discovery");
1331
1332 /*
1333 # lpfc_max_luns: maximum allowed LUN.
1334 # Value range is [0,65535]. Default value is 255.
1335 # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
1336 */
1337 LPFC_ATTR_R(max_luns, 255, 0, 65535,
1338 "Maximum allowed LUN");
1339
1340 /*
1341 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
1342 # Value range is [1,255], default value is 10.
1343 */
1344 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1345 "Milliseconds driver will wait between polling FCP ring");
1346
1347 /*
1348 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1349 # support this feature
1350 # 0 = MSI disabled (default)
1351 # 1 = MSI enabled
1352 # Value range is [0,1]. Default value is 0.
1353 */
1354 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
1355
1356
1357
1358 struct class_device_attribute *lpfc_hba_attrs[] = {
1359 &class_device_attr_info,
1360 &class_device_attr_serialnum,
1361 &class_device_attr_modeldesc,
1362 &class_device_attr_modelname,
1363 &class_device_attr_programtype,
1364 &class_device_attr_portnum,
1365 &class_device_attr_fwrev,
1366 &class_device_attr_hdw,
1367 &class_device_attr_option_rom_version,
1368 &class_device_attr_state,
1369 &class_device_attr_num_discovered_ports,
1370 &class_device_attr_lpfc_drvr_version,
1371 &class_device_attr_lpfc_log_verbose,
1372 &class_device_attr_lpfc_lun_queue_depth,
1373 &class_device_attr_lpfc_hba_queue_depth,
1374 &class_device_attr_lpfc_peer_port_login,
1375 &class_device_attr_lpfc_vport_restrict_login,
1376 &class_device_attr_lpfc_nodev_tmo,
1377 &class_device_attr_lpfc_devloss_tmo,
1378 &class_device_attr_lpfc_fcp_class,
1379 &class_device_attr_lpfc_use_adisc,
1380 &class_device_attr_lpfc_ack0,
1381 &class_device_attr_lpfc_topology,
1382 &class_device_attr_lpfc_scan_down,
1383 &class_device_attr_lpfc_link_speed,
1384 &class_device_attr_lpfc_cr_delay,
1385 &class_device_attr_lpfc_cr_count,
1386 &class_device_attr_lpfc_multi_ring_support,
1387 &class_device_attr_lpfc_multi_ring_rctl,
1388 &class_device_attr_lpfc_multi_ring_type,
1389 &class_device_attr_lpfc_fdmi_on,
1390 &class_device_attr_lpfc_max_luns,
1391 &class_device_attr_lpfc_npiv_enable,
1392 &class_device_attr_nport_evt_cnt,
1393 &class_device_attr_management_version,
1394 &class_device_attr_board_mode,
1395 &class_device_attr_max_vpi,
1396 &class_device_attr_used_vpi,
1397 &class_device_attr_max_rpi,
1398 &class_device_attr_used_rpi,
1399 &class_device_attr_max_xri,
1400 &class_device_attr_used_xri,
1401 &class_device_attr_npiv_info,
1402 &class_device_attr_issue_reset,
1403 &class_device_attr_lpfc_poll,
1404 &class_device_attr_lpfc_poll_tmo,
1405 &class_device_attr_lpfc_use_msi,
1406 &class_device_attr_lpfc_soft_wwnn,
1407 &class_device_attr_lpfc_soft_wwpn,
1408 &class_device_attr_lpfc_soft_wwn_enable,
1409 NULL,
1410 };
1411
1412 static ssize_t
1413 sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1414 char *buf, loff_t off, size_t count)
1415 {
1416 size_t buf_off;
1417 struct class_device *cdev = container_of(kobj, struct class_device,
1418 kobj);
1419 struct Scsi_Host *shost = class_to_shost(cdev);
1420 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1421 struct lpfc_hba *phba = vport->phba;
1422
1423 if ((off + count) > FF_REG_AREA_SIZE)
1424 return -ERANGE;
1425
1426 if (count == 0) return 0;
1427
1428 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1429 return -EINVAL;
1430
1431 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1432 return -EPERM;
1433 }
1434
1435 spin_lock_irq(&phba->hbalock);
1436 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
1437 writel(*((uint32_t *)(buf + buf_off)),
1438 phba->ctrl_regs_memmap_p + off + buf_off);
1439
1440 spin_unlock_irq(&phba->hbalock);
1441
1442 return count;
1443 }
1444
1445 static ssize_t
1446 sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1447 char *buf, loff_t off, size_t count)
1448 {
1449 size_t buf_off;
1450 uint32_t * tmp_ptr;
1451 struct class_device *cdev = container_of(kobj, struct class_device,
1452 kobj);
1453 struct Scsi_Host *shost = class_to_shost(cdev);
1454 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1455 struct lpfc_hba *phba = vport->phba;
1456
1457 if (off > FF_REG_AREA_SIZE)
1458 return -ERANGE;
1459
1460 if ((off + count) > FF_REG_AREA_SIZE)
1461 count = FF_REG_AREA_SIZE - off;
1462
1463 if (count == 0) return 0;
1464
1465 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1466 return -EINVAL;
1467
1468 spin_lock_irq(&phba->hbalock);
1469
1470 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
1471 tmp_ptr = (uint32_t *)(buf + buf_off);
1472 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
1473 }
1474
1475 spin_unlock_irq(&phba->hbalock);
1476
1477 return count;
1478 }
1479
1480 static struct bin_attribute sysfs_ctlreg_attr = {
1481 .attr = {
1482 .name = "ctlreg",
1483 .mode = S_IRUSR | S_IWUSR,
1484 },
1485 .size = 256,
1486 .read = sysfs_ctlreg_read,
1487 .write = sysfs_ctlreg_write,
1488 };
1489
1490
1491 static void
1492 sysfs_mbox_idle(struct lpfc_hba *phba)
1493 {
1494 phba->sysfs_mbox.state = SMBOX_IDLE;
1495 phba->sysfs_mbox.offset = 0;
1496
1497 if (phba->sysfs_mbox.mbox) {
1498 mempool_free(phba->sysfs_mbox.mbox,
1499 phba->mbox_mem_pool);
1500 phba->sysfs_mbox.mbox = NULL;
1501 }
1502 }
1503
1504 static ssize_t
1505 sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1506 char *buf, loff_t off, size_t count)
1507 {
1508 struct class_device *cdev = container_of(kobj, struct class_device,
1509 kobj);
1510 struct Scsi_Host *shost = class_to_shost(cdev);
1511 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1512 struct lpfc_hba *phba = vport->phba;
1513 struct lpfcMboxq *mbox = NULL;
1514
1515 if ((count + off) > MAILBOX_CMD_SIZE)
1516 return -ERANGE;
1517
1518 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1519 return -EINVAL;
1520
1521 if (count == 0)
1522 return 0;
1523
1524 if (off == 0) {
1525 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1526 if (!mbox)
1527 return -ENOMEM;
1528 memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
1529 }
1530
1531 spin_lock_irq(&phba->hbalock);
1532
1533 if (off == 0) {
1534 if (phba->sysfs_mbox.mbox)
1535 mempool_free(mbox, phba->mbox_mem_pool);
1536 else
1537 phba->sysfs_mbox.mbox = mbox;
1538 phba->sysfs_mbox.state = SMBOX_WRITING;
1539 } else {
1540 if (phba->sysfs_mbox.state != SMBOX_WRITING ||
1541 phba->sysfs_mbox.offset != off ||
1542 phba->sysfs_mbox.mbox == NULL) {
1543 sysfs_mbox_idle(phba);
1544 spin_unlock_irq(&phba->hbalock);
1545 return -EAGAIN;
1546 }
1547 }
1548
1549 memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
1550 buf, count);
1551
1552 phba->sysfs_mbox.offset = off + count;
1553
1554 spin_unlock_irq(&phba->hbalock);
1555
1556 return count;
1557 }
1558
1559 static ssize_t
1560 sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1561 char *buf, loff_t off, size_t count)
1562 {
1563 struct class_device *cdev = container_of(kobj, struct class_device,
1564 kobj);
1565 struct Scsi_Host *shost = class_to_shost(cdev);
1566 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1567 struct lpfc_hba *phba = vport->phba;
1568 int rc;
1569
1570 if (off > MAILBOX_CMD_SIZE)
1571 return -ERANGE;
1572
1573 if ((count + off) > MAILBOX_CMD_SIZE)
1574 count = MAILBOX_CMD_SIZE - off;
1575
1576 if (off % 4 || count % 4 || (unsigned long)buf % 4)
1577 return -EINVAL;
1578
1579 if (off && count == 0)
1580 return 0;
1581
1582 spin_lock_irq(&phba->hbalock);
1583
1584 if (off == 0 &&
1585 phba->sysfs_mbox.state == SMBOX_WRITING &&
1586 phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
1587
1588 switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
1589 /* Offline only */
1590 case MBX_WRITE_NV:
1591 case MBX_INIT_LINK:
1592 case MBX_DOWN_LINK:
1593 case MBX_CONFIG_LINK:
1594 case MBX_CONFIG_RING:
1595 case MBX_RESET_RING:
1596 case MBX_UNREG_LOGIN:
1597 case MBX_CLEAR_LA:
1598 case MBX_DUMP_CONTEXT:
1599 case MBX_RUN_DIAGS:
1600 case MBX_RESTART:
1601 case MBX_FLASH_WR_ULA:
1602 case MBX_SET_MASK:
1603 case MBX_SET_SLIM:
1604 case MBX_SET_DEBUG:
1605 if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
1606 printk(KERN_WARNING "mbox_read:Command 0x%x "
1607 "is illegal in on-line state\n",
1608 phba->sysfs_mbox.mbox->mb.mbxCommand);
1609 sysfs_mbox_idle(phba);
1610 spin_unlock_irq(&phba->hbalock);
1611 return -EPERM;
1612 }
1613 case MBX_LOAD_SM:
1614 case MBX_READ_NV:
1615 case MBX_READ_CONFIG:
1616 case MBX_READ_RCONFIG:
1617 case MBX_READ_STATUS:
1618 case MBX_READ_XRI:
1619 case MBX_READ_REV:
1620 case MBX_READ_LNK_STAT:
1621 case MBX_DUMP_MEMORY:
1622 case MBX_DOWN_LOAD:
1623 case MBX_UPDATE_CFG:
1624 case MBX_KILL_BOARD:
1625 case MBX_LOAD_AREA:
1626 case MBX_LOAD_EXP_ROM:
1627 case MBX_BEACON:
1628 case MBX_DEL_LD_ENTRY:
1629 break;
1630 case MBX_READ_SPARM64:
1631 case MBX_READ_LA:
1632 case MBX_READ_LA64:
1633 case MBX_REG_LOGIN:
1634 case MBX_REG_LOGIN64:
1635 case MBX_CONFIG_PORT:
1636 case MBX_RUN_BIU_DIAG:
1637 printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
1638 phba->sysfs_mbox.mbox->mb.mbxCommand);
1639 sysfs_mbox_idle(phba);
1640 spin_unlock_irq(&phba->hbalock);
1641 return -EPERM;
1642 default:
1643 printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
1644 phba->sysfs_mbox.mbox->mb.mbxCommand);
1645 sysfs_mbox_idle(phba);
1646 spin_unlock_irq(&phba->hbalock);
1647 return -EPERM;
1648 }
1649
1650 phba->sysfs_mbox.mbox->vport = vport;
1651
1652 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
1653 sysfs_mbox_idle(phba);
1654 spin_unlock_irq(&phba->hbalock);
1655 return -EAGAIN;
1656 }
1657
1658 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1659 (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){
1660
1661 spin_unlock_irq(&phba->hbalock);
1662 rc = lpfc_sli_issue_mbox (phba,
1663 phba->sysfs_mbox.mbox,
1664 MBX_POLL);
1665 spin_lock_irq(&phba->hbalock);
1666
1667 } else {
1668 spin_unlock_irq(&phba->hbalock);
1669 rc = lpfc_sli_issue_mbox_wait (phba,
1670 phba->sysfs_mbox.mbox,
1671 lpfc_mbox_tmo_val(phba,
1672 phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
1673 spin_lock_irq(&phba->hbalock);
1674 }
1675
1676 if (rc != MBX_SUCCESS) {
1677 if (rc == MBX_TIMEOUT) {
1678 phba->sysfs_mbox.mbox = NULL;
1679 }
1680 sysfs_mbox_idle(phba);
1681 spin_unlock_irq(&phba->hbalock);
1682 return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
1683 }
1684 phba->sysfs_mbox.state = SMBOX_READING;
1685 }
1686 else if (phba->sysfs_mbox.offset != off ||
1687 phba->sysfs_mbox.state != SMBOX_READING) {
1688 printk(KERN_WARNING "mbox_read: Bad State\n");
1689 sysfs_mbox_idle(phba);
1690 spin_unlock_irq(&phba->hbalock);
1691 return -EAGAIN;
1692 }
1693
1694 memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
1695
1696 phba->sysfs_mbox.offset = off + count;
1697
1698 if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
1699 sysfs_mbox_idle(phba);
1700
1701 spin_unlock_irq(&phba->hbalock);
1702
1703 return count;
1704 }
1705
1706 static struct bin_attribute sysfs_mbox_attr = {
1707 .attr = {
1708 .name = "mbox",
1709 .mode = S_IRUSR | S_IWUSR,
1710 },
1711 .size = MAILBOX_CMD_SIZE,
1712 .read = sysfs_mbox_read,
1713 .write = sysfs_mbox_write,
1714 };
1715
1716 int
1717 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
1718 {
1719 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1720 int error;
1721
1722 error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1723 &sysfs_ctlreg_attr);
1724 if (error)
1725 goto out;
1726
1727 error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
1728 &sysfs_mbox_attr);
1729 if (error)
1730 goto out_remove_ctlreg_attr;
1731
1732 return 0;
1733 out_remove_ctlreg_attr:
1734 sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1735 out:
1736 return error;
1737 }
1738
1739 void
1740 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
1741 {
1742 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1743
1744 sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_mbox_attr);
1745 sysfs_remove_bin_file(&shost->shost_classdev.kobj, &sysfs_ctlreg_attr);
1746 }
1747
1748
1749 /*
1750 * Dynamic FC Host Attributes Support
1751 */
1752
1753 static void
1754 lpfc_get_host_port_id(struct Scsi_Host *shost)
1755 {
1756 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1757
1758 /* note: fc_myDID already in cpu endianness */
1759 fc_host_port_id(shost) = vport->fc_myDID;
1760 }
1761
1762 static void
1763 lpfc_get_host_port_type(struct Scsi_Host *shost)
1764 {
1765 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1766 struct lpfc_hba *phba = vport->phba;
1767
1768 spin_lock_irq(shost->host_lock);
1769
1770 if (vport->port_type == LPFC_NPIV_PORT) {
1771 fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
1772 } else if (lpfc_is_link_up(phba)) {
1773 if (phba->fc_topology == TOPOLOGY_LOOP) {
1774 if (vport->fc_flag & FC_PUBLIC_LOOP)
1775 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
1776 else
1777 fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
1778 } else {
1779 if (vport->fc_flag & FC_FABRIC)
1780 fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
1781 else
1782 fc_host_port_type(shost) = FC_PORTTYPE_PTP;
1783 }
1784 } else
1785 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
1786
1787 spin_unlock_irq(shost->host_lock);
1788 }
1789
1790 static void
1791 lpfc_get_host_port_state(struct Scsi_Host *shost)
1792 {
1793 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1794 struct lpfc_hba *phba = vport->phba;
1795
1796 spin_lock_irq(shost->host_lock);
1797
1798 if (vport->fc_flag & FC_OFFLINE_MODE)
1799 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
1800 else {
1801 switch (phba->link_state) {
1802 case LPFC_LINK_UNKNOWN:
1803 case LPFC_LINK_DOWN:
1804 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
1805 break;
1806 case LPFC_LINK_UP:
1807 case LPFC_CLEAR_LA:
1808 case LPFC_HBA_READY:
1809 /* Links up, beyond this port_type reports state */
1810 fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
1811 break;
1812 case LPFC_HBA_ERROR:
1813 fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
1814 break;
1815 default:
1816 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
1817 break;
1818 }
1819 }
1820
1821 spin_unlock_irq(shost->host_lock);
1822 }
1823
1824 static void
1825 lpfc_get_host_speed(struct Scsi_Host *shost)
1826 {
1827 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1828 struct lpfc_hba *phba = vport->phba;
1829
1830 spin_lock_irq(shost->host_lock);
1831
1832 if (lpfc_is_link_up(phba)) {
1833 switch(phba->fc_linkspeed) {
1834 case LA_1GHZ_LINK:
1835 fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
1836 break;
1837 case LA_2GHZ_LINK:
1838 fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
1839 break;
1840 case LA_4GHZ_LINK:
1841 fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
1842 break;
1843 case LA_8GHZ_LINK:
1844 fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
1845 break;
1846 default:
1847 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
1848 break;
1849 }
1850 }
1851
1852 spin_unlock_irq(shost->host_lock);
1853 }
1854
1855 static void
1856 lpfc_get_host_fabric_name (struct Scsi_Host *shost)
1857 {
1858 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1859 struct lpfc_hba *phba = vport->phba;
1860 u64 node_name;
1861
1862 spin_lock_irq(shost->host_lock);
1863
1864 if ((vport->fc_flag & FC_FABRIC) ||
1865 ((phba->fc_topology == TOPOLOGY_LOOP) &&
1866 (vport->fc_flag & FC_PUBLIC_LOOP)))
1867 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
1868 else
1869 /* fabric is local port if there is no F/FL_Port */
1870 node_name = wwn_to_u64(vport->fc_nodename.u.wwn);
1871
1872 spin_unlock_irq(shost->host_lock);
1873
1874 fc_host_fabric_name(shost) = node_name;
1875 }
1876
1877 static struct fc_host_statistics *
1878 lpfc_get_stats(struct Scsi_Host *shost)
1879 {
1880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1881 struct lpfc_hba *phba = vport->phba;
1882 struct lpfc_sli *psli = &phba->sli;
1883 struct fc_host_statistics *hs = &phba->link_stats;
1884 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
1885 LPFC_MBOXQ_t *pmboxq;
1886 MAILBOX_t *pmb;
1887 unsigned long seconds;
1888 int rc = 0;
1889
1890 /*
1891 * prevent udev from issuing mailbox commands until the port is
1892 * configured.
1893 */
1894 if (phba->link_state < LPFC_LINK_DOWN ||
1895 !phba->mbox_mem_pool ||
1896 (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
1897 return NULL;
1898
1899 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
1900 return NULL;
1901
1902 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1903 if (!pmboxq)
1904 return NULL;
1905 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1906
1907 pmb = &pmboxq->mb;
1908 pmb->mbxCommand = MBX_READ_STATUS;
1909 pmb->mbxOwner = OWN_HOST;
1910 pmboxq->context1 = NULL;
1911 pmboxq->vport = vport;
1912
1913 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1914 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1915 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1916 else
1917 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1918
1919 if (rc != MBX_SUCCESS) {
1920 if (rc != MBX_TIMEOUT)
1921 mempool_free(pmboxq, phba->mbox_mem_pool);
1922 return NULL;
1923 }
1924
1925 memset(hs, 0, sizeof (struct fc_host_statistics));
1926
1927 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
1928 hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
1929 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
1930 hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
1931
1932 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
1933 pmb->mbxCommand = MBX_READ_LNK_STAT;
1934 pmb->mbxOwner = OWN_HOST;
1935 pmboxq->context1 = NULL;
1936 pmboxq->vport = vport;
1937
1938 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
1939 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
1940 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
1941 else
1942 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
1943
1944 if (rc != MBX_SUCCESS) {
1945 if (rc != MBX_TIMEOUT)
1946 mempool_free(pmboxq, phba->mbox_mem_pool);
1947 return NULL;
1948 }
1949
1950 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
1951 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
1952 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
1953 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
1954 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
1955 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
1956 hs->error_frames = pmb->un.varRdLnk.crcCnt;
1957
1958 hs->link_failure_count -= lso->link_failure_count;
1959 hs->loss_of_sync_count -= lso->loss_of_sync_count;
1960 hs->loss_of_signal_count -= lso->loss_of_signal_count;
1961 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
1962 hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
1963 hs->invalid_crc_count -= lso->invalid_crc_count;
1964 hs->error_frames -= lso->error_frames;
1965
1966 if (phba->fc_topology == TOPOLOGY_LOOP) {
1967 hs->lip_count = (phba->fc_eventTag >> 1);
1968 hs->lip_count -= lso->link_events;
1969 hs->nos_count = -1;
1970 } else {
1971 hs->lip_count = -1;
1972 hs->nos_count = (phba->fc_eventTag >> 1);
1973 hs->nos_count -= lso->link_events;
1974 }
1975
1976 hs->dumped_frames = -1;
1977
1978 seconds = get_seconds();
1979 if (seconds < psli->stats_start)
1980 hs->seconds_since_last_reset = seconds +
1981 ((unsigned long)-1 - psli->stats_start);
1982 else
1983 hs->seconds_since_last_reset = seconds - psli->stats_start;
1984
1985 mempool_free(pmboxq, phba->mbox_mem_pool);
1986
1987 return hs;
1988 }
1989
1990 static void
1991 lpfc_reset_stats(struct Scsi_Host *shost)
1992 {
1993 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
1994 struct lpfc_hba *phba = vport->phba;
1995 struct lpfc_sli *psli = &phba->sli;
1996 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
1997 LPFC_MBOXQ_t *pmboxq;
1998 MAILBOX_t *pmb;
1999 int rc = 0;
2000
2001 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
2002 return;
2003
2004 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2005 if (!pmboxq)
2006 return;
2007 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2008
2009 pmb = &pmboxq->mb;
2010 pmb->mbxCommand = MBX_READ_STATUS;
2011 pmb->mbxOwner = OWN_HOST;
2012 pmb->un.varWords[0] = 0x1; /* reset request */
2013 pmboxq->context1 = NULL;
2014 pmboxq->vport = vport;
2015
2016 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2017 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2018 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2019 else
2020 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2021
2022 if (rc != MBX_SUCCESS) {
2023 if (rc != MBX_TIMEOUT)
2024 mempool_free(pmboxq, phba->mbox_mem_pool);
2025 return;
2026 }
2027
2028 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
2029 pmb->mbxCommand = MBX_READ_LNK_STAT;
2030 pmb->mbxOwner = OWN_HOST;
2031 pmboxq->context1 = NULL;
2032 pmboxq->vport = vport;
2033
2034 if ((vport->fc_flag & FC_OFFLINE_MODE) ||
2035 (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
2036 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
2037 else
2038 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
2039
2040 if (rc != MBX_SUCCESS) {
2041 if (rc != MBX_TIMEOUT)
2042 mempool_free( pmboxq, phba->mbox_mem_pool);
2043 return;
2044 }
2045
2046 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
2047 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
2048 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
2049 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
2050 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
2051 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
2052 lso->error_frames = pmb->un.varRdLnk.crcCnt;
2053 lso->link_events = (phba->fc_eventTag >> 1);
2054
2055 psli->stats_start = get_seconds();
2056
2057 mempool_free(pmboxq, phba->mbox_mem_pool);
2058
2059 return;
2060 }
2061
2062 /*
2063 * The LPFC driver treats linkdown handling as target loss events so there
2064 * are no sysfs handlers for link_down_tmo.
2065 */
2066
2067 static struct lpfc_nodelist *
2068 lpfc_get_node_by_target(struct scsi_target *starget)
2069 {
2070 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
2071 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2072 struct lpfc_nodelist *ndlp;
2073
2074 spin_lock_irq(shost->host_lock);
2075 /* Search for this, mapped, target ID */
2076 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2077 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
2078 starget->id == ndlp->nlp_sid) {
2079 spin_unlock_irq(shost->host_lock);
2080 return ndlp;
2081 }
2082 }
2083 spin_unlock_irq(shost->host_lock);
2084 return NULL;
2085 }
2086
2087 static void
2088 lpfc_get_starget_port_id(struct scsi_target *starget)
2089 {
2090 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2091
2092 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
2093 }
2094
2095 static void
2096 lpfc_get_starget_node_name(struct scsi_target *starget)
2097 {
2098 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2099
2100 fc_starget_node_name(starget) =
2101 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
2102 }
2103
2104 static void
2105 lpfc_get_starget_port_name(struct scsi_target *starget)
2106 {
2107 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
2108
2109 fc_starget_port_name(starget) =
2110 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
2111 }
2112
2113 static void
2114 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
2115 {
2116 if (timeout)
2117 rport->dev_loss_tmo = timeout;
2118 else
2119 rport->dev_loss_tmo = 1;
2120 }
2121
2122
2123 #define lpfc_rport_show_function(field, format_string, sz, cast) \
2124 static ssize_t \
2125 lpfc_show_rport_##field (struct class_device *cdev, char *buf) \
2126 { \
2127 struct fc_rport *rport = transport_class_to_rport(cdev); \
2128 struct lpfc_rport_data *rdata = rport->hostdata; \
2129 return snprintf(buf, sz, format_string, \
2130 (rdata->target) ? cast rdata->target->field : 0); \
2131 }
2132
2133 #define lpfc_rport_rd_attr(field, format_string, sz) \
2134 lpfc_rport_show_function(field, format_string, sz, ) \
2135 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
2136
2137
2138 struct fc_function_template lpfc_transport_functions = {
2139 /* fixed attributes the driver supports */
2140 .show_host_node_name = 1,
2141 .show_host_port_name = 1,
2142 .show_host_supported_classes = 1,
2143 .show_host_supported_fc4s = 1,
2144 .show_host_supported_speeds = 1,
2145 .show_host_maxframe_size = 1,
2146
2147 /* dynamic attributes the driver supports */
2148 .get_host_port_id = lpfc_get_host_port_id,
2149 .show_host_port_id = 1,
2150
2151 .get_host_port_type = lpfc_get_host_port_type,
2152 .show_host_port_type = 1,
2153
2154 .get_host_port_state = lpfc_get_host_port_state,
2155 .show_host_port_state = 1,
2156
2157 /* active_fc4s is shown but doesn't change (thus no get function) */
2158 .show_host_active_fc4s = 1,
2159
2160 .get_host_speed = lpfc_get_host_speed,
2161 .show_host_speed = 1,
2162
2163 .get_host_fabric_name = lpfc_get_host_fabric_name,
2164 .show_host_fabric_name = 1,
2165
2166 /*
2167 * The LPFC driver treats linkdown handling as target loss events
2168 * so there are no sysfs handlers for link_down_tmo.
2169 */
2170
2171 .get_fc_host_stats = lpfc_get_stats,
2172 .reset_fc_host_stats = lpfc_reset_stats,
2173
2174 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2175 .show_rport_maxframe_size = 1,
2176 .show_rport_supported_classes = 1,
2177
2178 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2179 .show_rport_dev_loss_tmo = 1,
2180
2181 .get_starget_port_id = lpfc_get_starget_port_id,
2182 .show_starget_port_id = 1,
2183
2184 .get_starget_node_name = lpfc_get_starget_node_name,
2185 .show_starget_node_name = 1,
2186
2187 .get_starget_port_name = lpfc_get_starget_port_name,
2188 .show_starget_port_name = 1,
2189
2190 .issue_fc_host_lip = lpfc_issue_lip,
2191 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2192 .terminate_rport_io = lpfc_terminate_rport_io,
2193
2194 .vport_create = lpfc_vport_create,
2195 .vport_delete = lpfc_vport_delete,
2196 .dd_fcvport_size = sizeof(struct lpfc_vport *),
2197 };
2198
2199 struct fc_function_template lpfc_vport_transport_functions = {
2200 /* fixed attributes the driver supports */
2201 .show_host_node_name = 1,
2202 .show_host_port_name = 1,
2203 .show_host_supported_classes = 1,
2204 .show_host_supported_fc4s = 1,
2205 .show_host_supported_speeds = 1,
2206 .show_host_maxframe_size = 1,
2207
2208 /* dynamic attributes the driver supports */
2209 .get_host_port_id = lpfc_get_host_port_id,
2210 .show_host_port_id = 1,
2211
2212 .get_host_port_type = lpfc_get_host_port_type,
2213 .show_host_port_type = 1,
2214
2215 .get_host_port_state = lpfc_get_host_port_state,
2216 .show_host_port_state = 1,
2217
2218 /* active_fc4s is shown but doesn't change (thus no get function) */
2219 .show_host_active_fc4s = 1,
2220
2221 .get_host_speed = lpfc_get_host_speed,
2222 .show_host_speed = 1,
2223
2224 .get_host_fabric_name = lpfc_get_host_fabric_name,
2225 .show_host_fabric_name = 1,
2226
2227 /*
2228 * The LPFC driver treats linkdown handling as target loss events
2229 * so there are no sysfs handlers for link_down_tmo.
2230 */
2231
2232 .get_fc_host_stats = lpfc_get_stats,
2233 .reset_fc_host_stats = lpfc_reset_stats,
2234
2235 .dd_fcrport_size = sizeof(struct lpfc_rport_data),
2236 .show_rport_maxframe_size = 1,
2237 .show_rport_supported_classes = 1,
2238
2239 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
2240 .show_rport_dev_loss_tmo = 1,
2241
2242 .get_starget_port_id = lpfc_get_starget_port_id,
2243 .show_starget_port_id = 1,
2244
2245 .get_starget_node_name = lpfc_get_starget_node_name,
2246 .show_starget_node_name = 1,
2247
2248 .get_starget_port_name = lpfc_get_starget_port_name,
2249 .show_starget_port_name = 1,
2250
2251 .issue_fc_host_lip = lpfc_issue_lip,
2252 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
2253 .terminate_rport_io = lpfc_terminate_rport_io,
2254
2255 .vport_disable = lpfc_vport_disable,
2256 };
2257
2258 void
2259 lpfc_get_cfgparam(struct lpfc_hba *phba)
2260 {
2261 lpfc_log_verbose_init(phba, lpfc_log_verbose);
2262 lpfc_cr_delay_init(phba, lpfc_cr_delay);
2263 lpfc_cr_count_init(phba, lpfc_cr_count);
2264 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
2265 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
2266 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
2267 lpfc_lun_queue_depth_init(phba, lpfc_lun_queue_depth);
2268 lpfc_fcp_class_init(phba, lpfc_fcp_class);
2269 lpfc_use_adisc_init(phba, lpfc_use_adisc);
2270 lpfc_ack0_init(phba, lpfc_ack0);
2271 lpfc_topology_init(phba, lpfc_topology);
2272 lpfc_scan_down_init(phba, lpfc_scan_down);
2273 lpfc_link_speed_init(phba, lpfc_link_speed);
2274 lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
2275 lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
2276 lpfc_max_luns_init(phba, lpfc_max_luns);
2277 lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
2278 lpfc_peer_port_login_init(phba, lpfc_peer_port_login);
2279 lpfc_npiv_enable_init(phba, lpfc_npiv_enable);
2280 lpfc_vport_restrict_login_init(phba, lpfc_vport_restrict_login);
2281 lpfc_use_msi_init(phba, lpfc_use_msi);
2282 lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
2283 lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
2284 phba->cfg_poll = lpfc_poll;
2285 phba->cfg_soft_wwnn = 0L;
2286 phba->cfg_soft_wwpn = 0L;
2287
2288 /*
2289 * The total number of segments is the configuration value plus 2
2290 * since the IOCB need a command and response bde.
2291 */
2292 phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2;
2293
2294 /*
2295 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
2296 * used to create the sg_dma_buf_pool must be dynamically calculated
2297 */
2298 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
2299 sizeof(struct fcp_rsp) +
2300 (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64));
2301
2302
2303 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
2304
2305 return;
2306 }
Linux kernel - Deliverables
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