x86/xen: resume timer irqs early
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_debugfs.c
blob60084e6ad2f24331c6bab3e74d4869f13a5dca0c
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2007-2012 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * *
8 * This program is free software; you can redistribute it and/or *
9 * modify it under the terms of version 2 of the GNU General *
10 * Public License as published by the Free Software Foundation. *
11 * This program is distributed in the hope that it will be useful. *
12 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
13 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
14 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
15 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
16 * TO BE LEGALLY INVALID. See the GNU General Public License for *
17 * more details, a copy of which can be found in the file COPYING *
18 * included with this package. *
19 *******************************************************************/
21 #include <linux/blkdev.h>
22 #include <linux/delay.h>
23 #include <linux/module.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/kthread.h>
28 #include <linux/slab.h>
29 #include <linux/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/ctype.h>
33 #include <scsi/scsi.h>
34 #include <scsi/scsi_device.h>
35 #include <scsi/scsi_host.h>
36 #include <scsi/scsi_transport_fc.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_crtn.h"
48 #include "lpfc_vport.h"
49 #include "lpfc_version.h"
50 #include "lpfc_compat.h"
51 #include "lpfc_debugfs.h"
52 #include "lpfc_bsg.h"
54 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
56 * debugfs interface
58 * To access this interface the user should:
59 * # mount -t debugfs none /sys/kernel/debug
61 * The lpfc debugfs directory hierarchy is:
62 * /sys/kernel/debug/lpfc/fnX/vportY
63 * where X is the lpfc hba function unique_id
64 * where Y is the vport VPI on that hba
66 * Debugging services available per vport:
67 * discovery_trace
68 * This is an ACSII readable file that contains a trace of the last
69 * lpfc_debugfs_max_disc_trc events that happened on a specific vport.
70 * See lpfc_debugfs.h for different categories of discovery events.
71 * To enable the discovery trace, the following module parameters must be set:
72 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
73 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for
74 * EACH vport. X MUST also be a power of 2.
75 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in
76 * lpfc_debugfs.h .
78 * slow_ring_trace
79 * This is an ACSII readable file that contains a trace of the last
80 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA.
81 * To enable the slow ring trace, the following module parameters must be set:
82 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
83 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for
84 * the HBA. X MUST also be a power of 2.
86 static int lpfc_debugfs_enable = 1;
87 module_param(lpfc_debugfs_enable, int, S_IRUGO);
88 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services");
90 /* This MUST be a power of 2 */
91 static int lpfc_debugfs_max_disc_trc;
92 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO);
93 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc,
94 "Set debugfs discovery trace depth");
96 /* This MUST be a power of 2 */
97 static int lpfc_debugfs_max_slow_ring_trc;
98 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO);
99 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc,
100 "Set debugfs slow ring trace depth");
102 static int lpfc_debugfs_mask_disc_trc;
103 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO);
104 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
105 "Set debugfs discovery trace mask");
107 #include <linux/debugfs.h>
109 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
110 static unsigned long lpfc_debugfs_start_time = 0L;
112 /* iDiag */
113 static struct lpfc_idiag idiag;
116 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer
117 * @vport: The vport to gather the log info from.
118 * @buf: The buffer to dump log into.
119 * @size: The maximum amount of data to process.
121 * Description:
122 * This routine gathers the lpfc discovery debugfs data from the @vport and
123 * dumps it to @buf up to @size number of bytes. It will start at the next entry
124 * in the log and process the log until the end of the buffer. Then it will
125 * gather from the beginning of the log and process until the current entry.
127 * Notes:
128 * Discovery logging will be disabled while while this routine dumps the log.
130 * Return Value:
131 * This routine returns the amount of bytes that were dumped into @buf and will
132 * not exceed @size.
134 static int
135 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
137 int i, index, len, enable;
138 uint32_t ms;
139 struct lpfc_debugfs_trc *dtp;
140 char *buffer;
142 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
143 if (!buffer)
144 return 0;
146 enable = lpfc_debugfs_enable;
147 lpfc_debugfs_enable = 0;
149 len = 0;
150 index = (atomic_read(&vport->disc_trc_cnt) + 1) &
151 (lpfc_debugfs_max_disc_trc - 1);
152 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
153 dtp = vport->disc_trc + i;
154 if (!dtp->fmt)
155 continue;
156 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
157 snprintf(buffer,
158 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
159 dtp->seq_cnt, ms, dtp->fmt);
160 len += snprintf(buf+len, size-len, buffer,
161 dtp->data1, dtp->data2, dtp->data3);
163 for (i = 0; i < index; i++) {
164 dtp = vport->disc_trc + i;
165 if (!dtp->fmt)
166 continue;
167 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
168 snprintf(buffer,
169 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
170 dtp->seq_cnt, ms, dtp->fmt);
171 len += snprintf(buf+len, size-len, buffer,
172 dtp->data1, dtp->data2, dtp->data3);
175 lpfc_debugfs_enable = enable;
176 kfree(buffer);
178 return len;
182 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer
183 * @phba: The HBA to gather the log info from.
184 * @buf: The buffer to dump log into.
185 * @size: The maximum amount of data to process.
187 * Description:
188 * This routine gathers the lpfc slow ring debugfs data from the @phba and
189 * dumps it to @buf up to @size number of bytes. It will start at the next entry
190 * in the log and process the log until the end of the buffer. Then it will
191 * gather from the beginning of the log and process until the current entry.
193 * Notes:
194 * Slow ring logging will be disabled while while this routine dumps the log.
196 * Return Value:
197 * This routine returns the amount of bytes that were dumped into @buf and will
198 * not exceed @size.
200 static int
201 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
203 int i, index, len, enable;
204 uint32_t ms;
205 struct lpfc_debugfs_trc *dtp;
206 char *buffer;
208 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
209 if (!buffer)
210 return 0;
212 enable = lpfc_debugfs_enable;
213 lpfc_debugfs_enable = 0;
215 len = 0;
216 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
217 (lpfc_debugfs_max_slow_ring_trc - 1);
218 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
219 dtp = phba->slow_ring_trc + i;
220 if (!dtp->fmt)
221 continue;
222 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
223 snprintf(buffer,
224 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
225 dtp->seq_cnt, ms, dtp->fmt);
226 len += snprintf(buf+len, size-len, buffer,
227 dtp->data1, dtp->data2, dtp->data3);
229 for (i = 0; i < index; i++) {
230 dtp = phba->slow_ring_trc + i;
231 if (!dtp->fmt)
232 continue;
233 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
234 snprintf(buffer,
235 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
236 dtp->seq_cnt, ms, dtp->fmt);
237 len += snprintf(buf+len, size-len, buffer,
238 dtp->data1, dtp->data2, dtp->data3);
241 lpfc_debugfs_enable = enable;
242 kfree(buffer);
244 return len;
247 static int lpfc_debugfs_last_hbq = -1;
250 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer
251 * @phba: The HBA to gather host buffer info from.
252 * @buf: The buffer to dump log into.
253 * @size: The maximum amount of data to process.
255 * Description:
256 * This routine dumps the host buffer queue info from the @phba to @buf up to
257 * @size number of bytes. A header that describes the current hbq state will be
258 * dumped to @buf first and then info on each hbq entry will be dumped to @buf
259 * until @size bytes have been dumped or all the hbq info has been dumped.
261 * Notes:
262 * This routine will rotate through each configured HBQ each time called.
264 * Return Value:
265 * This routine returns the amount of bytes that were dumped into @buf and will
266 * not exceed @size.
268 static int
269 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
271 int len = 0;
272 int cnt, i, j, found, posted, low;
273 uint32_t phys, raw_index, getidx;
274 struct lpfc_hbq_init *hip;
275 struct hbq_s *hbqs;
276 struct lpfc_hbq_entry *hbqe;
277 struct lpfc_dmabuf *d_buf;
278 struct hbq_dmabuf *hbq_buf;
280 if (phba->sli_rev != 3)
281 return 0;
282 cnt = LPFC_HBQINFO_SIZE;
283 spin_lock_irq(&phba->hbalock);
285 /* toggle between multiple hbqs, if any */
286 i = lpfc_sli_hbq_count();
287 if (i > 1) {
288 lpfc_debugfs_last_hbq++;
289 if (lpfc_debugfs_last_hbq >= i)
290 lpfc_debugfs_last_hbq = 0;
292 else
293 lpfc_debugfs_last_hbq = 0;
295 i = lpfc_debugfs_last_hbq;
297 len += snprintf(buf+len, size-len, "HBQ %d Info\n", i);
299 hbqs = &phba->hbqs[i];
300 posted = 0;
301 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list)
302 posted++;
304 hip = lpfc_hbq_defs[i];
305 len += snprintf(buf+len, size-len,
306 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
307 hip->hbq_index, hip->profile, hip->rn,
308 hip->buffer_count, hip->init_count, hip->add_count, posted);
310 raw_index = phba->hbq_get[i];
311 getidx = le32_to_cpu(raw_index);
312 len += snprintf(buf+len, size-len,
313 "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
314 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx,
315 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx);
317 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
318 for (j=0; j<hbqs->entry_count; j++) {
319 len += snprintf(buf+len, size-len,
320 "%03d: %08x %04x %05x ", j,
321 le32_to_cpu(hbqe->bde.addrLow),
322 le32_to_cpu(hbqe->bde.tus.w),
323 le32_to_cpu(hbqe->buffer_tag));
324 i = 0;
325 found = 0;
327 /* First calculate if slot has an associated posted buffer */
328 low = hbqs->hbqPutIdx - posted;
329 if (low >= 0) {
330 if ((j >= hbqs->hbqPutIdx) || (j < low)) {
331 len += snprintf(buf+len, size-len, "Unused\n");
332 goto skipit;
335 else {
336 if ((j >= hbqs->hbqPutIdx) &&
337 (j < (hbqs->entry_count+low))) {
338 len += snprintf(buf+len, size-len, "Unused\n");
339 goto skipit;
343 /* Get the Buffer info for the posted buffer */
344 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) {
345 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
346 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
347 if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
348 len += snprintf(buf+len, size-len,
349 "Buf%d: %p %06x\n", i,
350 hbq_buf->dbuf.virt, hbq_buf->tag);
351 found = 1;
352 break;
354 i++;
356 if (!found) {
357 len += snprintf(buf+len, size-len, "No DMAinfo?\n");
359 skipit:
360 hbqe++;
361 if (len > LPFC_HBQINFO_SIZE - 54)
362 break;
364 spin_unlock_irq(&phba->hbalock);
365 return len;
368 static int lpfc_debugfs_last_hba_slim_off;
371 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer
372 * @phba: The HBA to gather SLIM info from.
373 * @buf: The buffer to dump log into.
374 * @size: The maximum amount of data to process.
376 * Description:
377 * This routine dumps the current contents of HBA SLIM for the HBA associated
378 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data.
380 * Notes:
381 * This routine will only dump up to 1024 bytes of data each time called and
382 * should be called multiple times to dump the entire HBA SLIM.
384 * Return Value:
385 * This routine returns the amount of bytes that were dumped into @buf and will
386 * not exceed @size.
388 static int
389 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
391 int len = 0;
392 int i, off;
393 uint32_t *ptr;
394 char *buffer;
396 buffer = kmalloc(1024, GFP_KERNEL);
397 if (!buffer)
398 return 0;
400 off = 0;
401 spin_lock_irq(&phba->hbalock);
403 len += snprintf(buf+len, size-len, "HBA SLIM\n");
404 lpfc_memcpy_from_slim(buffer,
405 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
407 ptr = (uint32_t *)&buffer[0];
408 off = lpfc_debugfs_last_hba_slim_off;
410 /* Set it up for the next time */
411 lpfc_debugfs_last_hba_slim_off += 1024;
412 if (lpfc_debugfs_last_hba_slim_off >= 4096)
413 lpfc_debugfs_last_hba_slim_off = 0;
415 i = 1024;
416 while (i > 0) {
417 len += snprintf(buf+len, size-len,
418 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
419 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
420 *(ptr+5), *(ptr+6), *(ptr+7));
421 ptr += 8;
422 i -= (8 * sizeof(uint32_t));
423 off += (8 * sizeof(uint32_t));
426 spin_unlock_irq(&phba->hbalock);
427 kfree(buffer);
429 return len;
433 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer
434 * @phba: The HBA to gather Host SLIM info from.
435 * @buf: The buffer to dump log into.
436 * @size: The maximum amount of data to process.
438 * Description:
439 * This routine dumps the current contents of host SLIM for the host associated
440 * with @phba to @buf up to @size bytes of data. The dump will contain the
441 * Mailbox, PCB, Rings, and Registers that are located in host memory.
443 * Return Value:
444 * This routine returns the amount of bytes that were dumped into @buf and will
445 * not exceed @size.
447 static int
448 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
450 int len = 0;
451 int i, off;
452 uint32_t word0, word1, word2, word3;
453 uint32_t *ptr;
454 struct lpfc_pgp *pgpp;
455 struct lpfc_sli *psli = &phba->sli;
456 struct lpfc_sli_ring *pring;
458 off = 0;
459 spin_lock_irq(&phba->hbalock);
461 len += snprintf(buf+len, size-len, "SLIM Mailbox\n");
462 ptr = (uint32_t *)phba->slim2p.virt;
463 i = sizeof(MAILBOX_t);
464 while (i > 0) {
465 len += snprintf(buf+len, size-len,
466 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
467 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
468 *(ptr+5), *(ptr+6), *(ptr+7));
469 ptr += 8;
470 i -= (8 * sizeof(uint32_t));
471 off += (8 * sizeof(uint32_t));
474 len += snprintf(buf+len, size-len, "SLIM PCB\n");
475 ptr = (uint32_t *)phba->pcb;
476 i = sizeof(PCB_t);
477 while (i > 0) {
478 len += snprintf(buf+len, size-len,
479 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
480 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
481 *(ptr+5), *(ptr+6), *(ptr+7));
482 ptr += 8;
483 i -= (8 * sizeof(uint32_t));
484 off += (8 * sizeof(uint32_t));
487 for (i = 0; i < 4; i++) {
488 pgpp = &phba->port_gp[i];
489 pring = &psli->ring[i];
490 len += snprintf(buf+len, size-len,
491 "Ring %d: CMD GetInx:%d (Max:%d Next:%d "
492 "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n",
493 i, pgpp->cmdGetInx, pring->sli.sli3.numCiocb,
494 pring->sli.sli3.next_cmdidx,
495 pring->sli.sli3.local_getidx,
496 pring->flag, pgpp->rspPutInx,
497 pring->sli.sli3.numRiocb);
500 if (phba->sli_rev <= LPFC_SLI_REV3) {
501 word0 = readl(phba->HAregaddr);
502 word1 = readl(phba->CAregaddr);
503 word2 = readl(phba->HSregaddr);
504 word3 = readl(phba->HCregaddr);
505 len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
506 "HC:%08x\n", word0, word1, word2, word3);
508 spin_unlock_irq(&phba->hbalock);
509 return len;
513 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer
514 * @vport: The vport to gather target node info from.
515 * @buf: The buffer to dump log into.
516 * @size: The maximum amount of data to process.
518 * Description:
519 * This routine dumps the current target node list associated with @vport to
520 * @buf up to @size bytes of data. Each node entry in the dump will contain a
521 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
523 * Return Value:
524 * This routine returns the amount of bytes that were dumped into @buf and will
525 * not exceed @size.
527 static int
528 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
530 int len = 0;
531 int cnt;
532 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
533 struct lpfc_nodelist *ndlp;
534 unsigned char *statep, *name;
536 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
538 spin_lock_irq(shost->host_lock);
539 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
540 if (!cnt) {
541 len += snprintf(buf+len, size-len,
542 "Missing Nodelist Entries\n");
543 break;
545 cnt--;
546 switch (ndlp->nlp_state) {
547 case NLP_STE_UNUSED_NODE:
548 statep = "UNUSED";
549 break;
550 case NLP_STE_PLOGI_ISSUE:
551 statep = "PLOGI ";
552 break;
553 case NLP_STE_ADISC_ISSUE:
554 statep = "ADISC ";
555 break;
556 case NLP_STE_REG_LOGIN_ISSUE:
557 statep = "REGLOG";
558 break;
559 case NLP_STE_PRLI_ISSUE:
560 statep = "PRLI ";
561 break;
562 case NLP_STE_LOGO_ISSUE:
563 statep = "LOGO ";
564 break;
565 case NLP_STE_UNMAPPED_NODE:
566 statep = "UNMAP ";
567 break;
568 case NLP_STE_MAPPED_NODE:
569 statep = "MAPPED";
570 break;
571 case NLP_STE_NPR_NODE:
572 statep = "NPR ";
573 break;
574 default:
575 statep = "UNKNOWN";
577 len += snprintf(buf+len, size-len, "%s DID:x%06x ",
578 statep, ndlp->nlp_DID);
579 name = (unsigned char *)&ndlp->nlp_portname;
580 len += snprintf(buf+len, size-len,
581 "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
582 *name, *(name+1), *(name+2), *(name+3),
583 *(name+4), *(name+5), *(name+6), *(name+7));
584 name = (unsigned char *)&ndlp->nlp_nodename;
585 len += snprintf(buf+len, size-len,
586 "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
587 *name, *(name+1), *(name+2), *(name+3),
588 *(name+4), *(name+5), *(name+6), *(name+7));
589 if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
590 len += snprintf(buf+len, size-len, "RPI:%03d ",
591 ndlp->nlp_rpi);
592 else
593 len += snprintf(buf+len, size-len, "RPI:none ");
594 len += snprintf(buf+len, size-len, "flag:x%08x ",
595 ndlp->nlp_flag);
596 if (!ndlp->nlp_type)
597 len += snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
598 if (ndlp->nlp_type & NLP_FC_NODE)
599 len += snprintf(buf+len, size-len, "FC_NODE ");
600 if (ndlp->nlp_type & NLP_FABRIC)
601 len += snprintf(buf+len, size-len, "FABRIC ");
602 if (ndlp->nlp_type & NLP_FCP_TARGET)
603 len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ",
604 ndlp->nlp_sid);
605 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
606 len += snprintf(buf+len, size-len, "FCP_INITIATOR ");
607 len += snprintf(buf+len, size-len, "usgmap:%x ",
608 ndlp->nlp_usg_map);
609 len += snprintf(buf+len, size-len, "refcnt:%x",
610 atomic_read(&ndlp->kref.refcount));
611 len += snprintf(buf+len, size-len, "\n");
613 spin_unlock_irq(shost->host_lock);
614 return len;
616 #endif
619 * lpfc_debugfs_disc_trc - Store discovery trace log
620 * @vport: The vport to associate this trace string with for retrieval.
621 * @mask: Log entry classification.
622 * @fmt: Format string to be displayed when dumping the log.
623 * @data1: 1st data parameter to be applied to @fmt.
624 * @data2: 2nd data parameter to be applied to @fmt.
625 * @data3: 3rd data parameter to be applied to @fmt.
627 * Description:
628 * This routine is used by the driver code to add a debugfs log entry to the
629 * discovery trace buffer associated with @vport. Only entries with a @mask that
630 * match the current debugfs discovery mask will be saved. Entries that do not
631 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
632 * printf when displaying the log.
634 inline void
635 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
636 uint32_t data1, uint32_t data2, uint32_t data3)
638 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
639 struct lpfc_debugfs_trc *dtp;
640 int index;
642 if (!(lpfc_debugfs_mask_disc_trc & mask))
643 return;
645 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc ||
646 !vport || !vport->disc_trc)
647 return;
649 index = atomic_inc_return(&vport->disc_trc_cnt) &
650 (lpfc_debugfs_max_disc_trc - 1);
651 dtp = vport->disc_trc + index;
652 dtp->fmt = fmt;
653 dtp->data1 = data1;
654 dtp->data2 = data2;
655 dtp->data3 = data3;
656 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
657 dtp->jif = jiffies;
658 #endif
659 return;
663 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log
664 * @phba: The phba to associate this trace string with for retrieval.
665 * @fmt: Format string to be displayed when dumping the log.
666 * @data1: 1st data parameter to be applied to @fmt.
667 * @data2: 2nd data parameter to be applied to @fmt.
668 * @data3: 3rd data parameter to be applied to @fmt.
670 * Description:
671 * This routine is used by the driver code to add a debugfs log entry to the
672 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
673 * @data3 are used like printf when displaying the log.
675 inline void
676 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
677 uint32_t data1, uint32_t data2, uint32_t data3)
679 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
680 struct lpfc_debugfs_trc *dtp;
681 int index;
683 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc ||
684 !phba || !phba->slow_ring_trc)
685 return;
687 index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
688 (lpfc_debugfs_max_slow_ring_trc - 1);
689 dtp = phba->slow_ring_trc + index;
690 dtp->fmt = fmt;
691 dtp->data1 = data1;
692 dtp->data2 = data2;
693 dtp->data3 = data3;
694 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
695 dtp->jif = jiffies;
696 #endif
697 return;
700 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
702 * lpfc_debugfs_disc_trc_open - Open the discovery trace log
703 * @inode: The inode pointer that contains a vport pointer.
704 * @file: The file pointer to attach the log output.
706 * Description:
707 * This routine is the entry point for the debugfs open file operation. It gets
708 * the vport from the i_private field in @inode, allocates the necessary buffer
709 * for the log, fills the buffer from the in-memory log for this vport, and then
710 * returns a pointer to that log in the private_data field in @file.
712 * Returns:
713 * This function returns zero if successful. On error it will return an negative
714 * error value.
716 static int
717 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
719 struct lpfc_vport *vport = inode->i_private;
720 struct lpfc_debug *debug;
721 int size;
722 int rc = -ENOMEM;
724 if (!lpfc_debugfs_max_disc_trc) {
725 rc = -ENOSPC;
726 goto out;
729 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
730 if (!debug)
731 goto out;
733 /* Round to page boundary */
734 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
735 size = PAGE_ALIGN(size);
737 debug->buffer = kmalloc(size, GFP_KERNEL);
738 if (!debug->buffer) {
739 kfree(debug);
740 goto out;
743 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size);
744 file->private_data = debug;
746 rc = 0;
747 out:
748 return rc;
752 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log
753 * @inode: The inode pointer that contains a vport pointer.
754 * @file: The file pointer to attach the log output.
756 * Description:
757 * This routine is the entry point for the debugfs open file operation. It gets
758 * the vport from the i_private field in @inode, allocates the necessary buffer
759 * for the log, fills the buffer from the in-memory log for this vport, and then
760 * returns a pointer to that log in the private_data field in @file.
762 * Returns:
763 * This function returns zero if successful. On error it will return an negative
764 * error value.
766 static int
767 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
769 struct lpfc_hba *phba = inode->i_private;
770 struct lpfc_debug *debug;
771 int size;
772 int rc = -ENOMEM;
774 if (!lpfc_debugfs_max_slow_ring_trc) {
775 rc = -ENOSPC;
776 goto out;
779 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
780 if (!debug)
781 goto out;
783 /* Round to page boundary */
784 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
785 size = PAGE_ALIGN(size);
787 debug->buffer = kmalloc(size, GFP_KERNEL);
788 if (!debug->buffer) {
789 kfree(debug);
790 goto out;
793 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size);
794 file->private_data = debug;
796 rc = 0;
797 out:
798 return rc;
802 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
803 * @inode: The inode pointer that contains a vport pointer.
804 * @file: The file pointer to attach the log output.
806 * Description:
807 * This routine is the entry point for the debugfs open file operation. It gets
808 * the vport from the i_private field in @inode, allocates the necessary buffer
809 * for the log, fills the buffer from the in-memory log for this vport, and then
810 * returns a pointer to that log in the private_data field in @file.
812 * Returns:
813 * This function returns zero if successful. On error it will return an negative
814 * error value.
816 static int
817 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
819 struct lpfc_hba *phba = inode->i_private;
820 struct lpfc_debug *debug;
821 int rc = -ENOMEM;
823 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
824 if (!debug)
825 goto out;
827 /* Round to page boundary */
828 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
829 if (!debug->buffer) {
830 kfree(debug);
831 goto out;
834 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer,
835 LPFC_HBQINFO_SIZE);
836 file->private_data = debug;
838 rc = 0;
839 out:
840 return rc;
844 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
845 * @inode: The inode pointer that contains a vport pointer.
846 * @file: The file pointer to attach the log output.
848 * Description:
849 * This routine is the entry point for the debugfs open file operation. It gets
850 * the vport from the i_private field in @inode, allocates the necessary buffer
851 * for the log, fills the buffer from the in-memory log for this vport, and then
852 * returns a pointer to that log in the private_data field in @file.
854 * Returns:
855 * This function returns zero if successful. On error it will return an negative
856 * error value.
858 static int
859 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
861 struct lpfc_hba *phba = inode->i_private;
862 struct lpfc_debug *debug;
863 int rc = -ENOMEM;
865 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
866 if (!debug)
867 goto out;
869 /* Round to page boundary */
870 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
871 if (!debug->buffer) {
872 kfree(debug);
873 goto out;
876 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer,
877 LPFC_DUMPHBASLIM_SIZE);
878 file->private_data = debug;
880 rc = 0;
881 out:
882 return rc;
886 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
887 * @inode: The inode pointer that contains a vport pointer.
888 * @file: The file pointer to attach the log output.
890 * Description:
891 * This routine is the entry point for the debugfs open file operation. It gets
892 * the vport from the i_private field in @inode, allocates the necessary buffer
893 * for the log, fills the buffer from the in-memory log for this vport, and then
894 * returns a pointer to that log in the private_data field in @file.
896 * Returns:
897 * This function returns zero if successful. On error it will return an negative
898 * error value.
900 static int
901 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
903 struct lpfc_hba *phba = inode->i_private;
904 struct lpfc_debug *debug;
905 int rc = -ENOMEM;
907 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
908 if (!debug)
909 goto out;
911 /* Round to page boundary */
912 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
913 if (!debug->buffer) {
914 kfree(debug);
915 goto out;
918 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer,
919 LPFC_DUMPHOSTSLIM_SIZE);
920 file->private_data = debug;
922 rc = 0;
923 out:
924 return rc;
927 static int
928 lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file)
930 struct lpfc_debug *debug;
931 int rc = -ENOMEM;
933 if (!_dump_buf_data)
934 return -EBUSY;
936 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
937 if (!debug)
938 goto out;
940 /* Round to page boundary */
941 printk(KERN_ERR "9059 BLKGRD: %s: _dump_buf_data=0x%p\n",
942 __func__, _dump_buf_data);
943 debug->buffer = _dump_buf_data;
944 if (!debug->buffer) {
945 kfree(debug);
946 goto out;
949 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT;
950 file->private_data = debug;
952 rc = 0;
953 out:
954 return rc;
957 static int
958 lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file)
960 struct lpfc_debug *debug;
961 int rc = -ENOMEM;
963 if (!_dump_buf_dif)
964 return -EBUSY;
966 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
967 if (!debug)
968 goto out;
970 /* Round to page boundary */
971 printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n",
972 __func__, _dump_buf_dif, file->f_dentry->d_name.name);
973 debug->buffer = _dump_buf_dif;
974 if (!debug->buffer) {
975 kfree(debug);
976 goto out;
979 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT;
980 file->private_data = debug;
982 rc = 0;
983 out:
984 return rc;
987 static ssize_t
988 lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
989 size_t nbytes, loff_t *ppos)
992 * The Data/DIF buffers only save one failing IO
993 * The write op is used as a reset mechanism after an IO has
994 * already been saved to the next one can be saved
996 spin_lock(&_dump_buf_lock);
998 memset((void *)_dump_buf_data, 0,
999 ((1 << PAGE_SHIFT) << _dump_buf_data_order));
1000 memset((void *)_dump_buf_dif, 0,
1001 ((1 << PAGE_SHIFT) << _dump_buf_dif_order));
1003 _dump_buf_done = 0;
1005 spin_unlock(&_dump_buf_lock);
1007 return nbytes;
1010 static ssize_t
1011 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
1012 size_t nbytes, loff_t *ppos)
1014 struct dentry *dent = file->f_dentry;
1015 struct lpfc_hba *phba = file->private_data;
1016 char cbuf[32];
1017 uint64_t tmp = 0;
1018 int cnt = 0;
1020 if (dent == phba->debug_writeGuard)
1021 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
1022 else if (dent == phba->debug_writeApp)
1023 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
1024 else if (dent == phba->debug_writeRef)
1025 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
1026 else if (dent == phba->debug_readGuard)
1027 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
1028 else if (dent == phba->debug_readApp)
1029 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
1030 else if (dent == phba->debug_readRef)
1031 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
1032 else if (dent == phba->debug_InjErrNPortID)
1033 cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid);
1034 else if (dent == phba->debug_InjErrWWPN) {
1035 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name));
1036 tmp = cpu_to_be64(tmp);
1037 cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp);
1038 } else if (dent == phba->debug_InjErrLBA) {
1039 if (phba->lpfc_injerr_lba == (sector_t)(-1))
1040 cnt = snprintf(cbuf, 32, "off\n");
1041 else
1042 cnt = snprintf(cbuf, 32, "0x%llx\n",
1043 (uint64_t) phba->lpfc_injerr_lba);
1044 } else
1045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1046 "0547 Unknown debugfs error injection entry\n");
1048 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt);
1051 static ssize_t
1052 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf,
1053 size_t nbytes, loff_t *ppos)
1055 struct dentry *dent = file->f_dentry;
1056 struct lpfc_hba *phba = file->private_data;
1057 char dstbuf[32];
1058 uint64_t tmp = 0;
1059 int size;
1061 memset(dstbuf, 0, 32);
1062 size = (nbytes < 32) ? nbytes : 32;
1063 if (copy_from_user(dstbuf, buf, size))
1064 return 0;
1066 if (dent == phba->debug_InjErrLBA) {
1067 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f'))
1068 tmp = (uint64_t)(-1);
1071 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp)))
1072 return 0;
1074 if (dent == phba->debug_writeGuard)
1075 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;
1076 else if (dent == phba->debug_writeApp)
1077 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;
1078 else if (dent == phba->debug_writeRef)
1079 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;
1080 else if (dent == phba->debug_readGuard)
1081 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp;
1082 else if (dent == phba->debug_readApp)
1083 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;
1084 else if (dent == phba->debug_readRef)
1085 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp;
1086 else if (dent == phba->debug_InjErrLBA)
1087 phba->lpfc_injerr_lba = (sector_t)tmp;
1088 else if (dent == phba->debug_InjErrNPortID)
1089 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID);
1090 else if (dent == phba->debug_InjErrWWPN) {
1091 tmp = cpu_to_be64(tmp);
1092 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name));
1093 } else
1094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1095 "0548 Unknown debugfs error injection entry\n");
1097 return nbytes;
1100 static int
1101 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file)
1103 return 0;
1107 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
1108 * @inode: The inode pointer that contains a vport pointer.
1109 * @file: The file pointer to attach the log output.
1111 * Description:
1112 * This routine is the entry point for the debugfs open file operation. It gets
1113 * the vport from the i_private field in @inode, allocates the necessary buffer
1114 * for the log, fills the buffer from the in-memory log for this vport, and then
1115 * returns a pointer to that log in the private_data field in @file.
1117 * Returns:
1118 * This function returns zero if successful. On error it will return an negative
1119 * error value.
1121 static int
1122 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
1124 struct lpfc_vport *vport = inode->i_private;
1125 struct lpfc_debug *debug;
1126 int rc = -ENOMEM;
1128 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1129 if (!debug)
1130 goto out;
1132 /* Round to page boundary */
1133 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
1134 if (!debug->buffer) {
1135 kfree(debug);
1136 goto out;
1139 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer,
1140 LPFC_NODELIST_SIZE);
1141 file->private_data = debug;
1143 rc = 0;
1144 out:
1145 return rc;
1149 * lpfc_debugfs_lseek - Seek through a debugfs file
1150 * @file: The file pointer to seek through.
1151 * @off: The offset to seek to or the amount to seek by.
1152 * @whence: Indicates how to seek.
1154 * Description:
1155 * This routine is the entry point for the debugfs lseek file operation. The
1156 * @whence parameter indicates whether @off is the offset to directly seek to,
1157 * or if it is a value to seek forward or reverse by. This function figures out
1158 * what the new offset of the debugfs file will be and assigns that value to the
1159 * f_pos field of @file.
1161 * Returns:
1162 * This function returns the new offset if successful and returns a negative
1163 * error if unable to process the seek.
1165 static loff_t
1166 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
1168 struct lpfc_debug *debug = file->private_data;
1169 return fixed_size_llseek(file, off, whence, debug->len);
1173 * lpfc_debugfs_read - Read a debugfs file
1174 * @file: The file pointer to read from.
1175 * @buf: The buffer to copy the data to.
1176 * @nbytes: The number of bytes to read.
1177 * @ppos: The position in the file to start reading from.
1179 * Description:
1180 * This routine reads data from from the buffer indicated in the private_data
1181 * field of @file. It will start reading at @ppos and copy up to @nbytes of
1182 * data to @buf.
1184 * Returns:
1185 * This function returns the amount of data that was read (this could be less
1186 * than @nbytes if the end of the file was reached) or a negative error value.
1188 static ssize_t
1189 lpfc_debugfs_read(struct file *file, char __user *buf,
1190 size_t nbytes, loff_t *ppos)
1192 struct lpfc_debug *debug = file->private_data;
1194 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
1195 debug->len);
1199 * lpfc_debugfs_release - Release the buffer used to store debugfs file data
1200 * @inode: The inode pointer that contains a vport pointer. (unused)
1201 * @file: The file pointer that contains the buffer to release.
1203 * Description:
1204 * This routine frees the buffer that was allocated when the debugfs file was
1205 * opened.
1207 * Returns:
1208 * This function returns zero.
1210 static int
1211 lpfc_debugfs_release(struct inode *inode, struct file *file)
1213 struct lpfc_debug *debug = file->private_data;
1215 kfree(debug->buffer);
1216 kfree(debug);
1218 return 0;
1221 static int
1222 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
1224 struct lpfc_debug *debug = file->private_data;
1226 debug->buffer = NULL;
1227 kfree(debug);
1229 return 0;
1233 * ---------------------------------
1234 * iDiag debugfs file access methods
1235 * ---------------------------------
1237 * All access methods are through the proper SLI4 PCI function's debugfs
1238 * iDiag directory:
1240 * /sys/kernel/debug/lpfc/fn<#>/iDiag
1244 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
1245 * @buf: The pointer to the user space buffer.
1246 * @nbytes: The number of bytes in the user space buffer.
1247 * @idiag_cmd: pointer to the idiag command struct.
1249 * This routine reads data from debugfs user space buffer and parses the
1250 * buffer for getting the idiag command and arguments. The while space in
1251 * between the set of data is used as the parsing separator.
1253 * This routine returns 0 when successful, it returns proper error code
1254 * back to the user space in error conditions.
1256 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
1257 struct lpfc_idiag_cmd *idiag_cmd)
1259 char mybuf[64];
1260 char *pbuf, *step_str;
1261 int i;
1262 size_t bsize;
1264 /* Protect copy from user */
1265 if (!access_ok(VERIFY_READ, buf, nbytes))
1266 return -EFAULT;
1268 memset(mybuf, 0, sizeof(mybuf));
1269 memset(idiag_cmd, 0, sizeof(*idiag_cmd));
1270 bsize = min(nbytes, (sizeof(mybuf)-1));
1272 if (copy_from_user(mybuf, buf, bsize))
1273 return -EFAULT;
1274 pbuf = &mybuf[0];
1275 step_str = strsep(&pbuf, "\t ");
1277 /* The opcode must present */
1278 if (!step_str)
1279 return -EINVAL;
1281 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
1282 if (idiag_cmd->opcode == 0)
1283 return -EINVAL;
1285 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
1286 step_str = strsep(&pbuf, "\t ");
1287 if (!step_str)
1288 return i;
1289 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
1291 return i;
1295 * lpfc_idiag_open - idiag open debugfs
1296 * @inode: The inode pointer that contains a pointer to phba.
1297 * @file: The file pointer to attach the file operation.
1299 * Description:
1300 * This routine is the entry point for the debugfs open file operation. It
1301 * gets the reference to phba from the i_private field in @inode, it then
1302 * allocates buffer for the file operation, performs the necessary PCI config
1303 * space read into the allocated buffer according to the idiag user command
1304 * setup, and then returns a pointer to buffer in the private_data field in
1305 * @file.
1307 * Returns:
1308 * This function returns zero if successful. On error it will return an
1309 * negative error value.
1311 static int
1312 lpfc_idiag_open(struct inode *inode, struct file *file)
1314 struct lpfc_debug *debug;
1316 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1317 if (!debug)
1318 return -ENOMEM;
1320 debug->i_private = inode->i_private;
1321 debug->buffer = NULL;
1322 file->private_data = debug;
1324 return 0;
1328 * lpfc_idiag_release - Release idiag access file operation
1329 * @inode: The inode pointer that contains a vport pointer. (unused)
1330 * @file: The file pointer that contains the buffer to release.
1332 * Description:
1333 * This routine is the generic release routine for the idiag access file
1334 * operation, it frees the buffer that was allocated when the debugfs file
1335 * was opened.
1337 * Returns:
1338 * This function returns zero.
1340 static int
1341 lpfc_idiag_release(struct inode *inode, struct file *file)
1343 struct lpfc_debug *debug = file->private_data;
1345 /* Free the buffers to the file operation */
1346 kfree(debug->buffer);
1347 kfree(debug);
1349 return 0;
1353 * lpfc_idiag_cmd_release - Release idiag cmd access file operation
1354 * @inode: The inode pointer that contains a vport pointer. (unused)
1355 * @file: The file pointer that contains the buffer to release.
1357 * Description:
1358 * This routine frees the buffer that was allocated when the debugfs file
1359 * was opened. It also reset the fields in the idiag command struct in the
1360 * case of command for write operation.
1362 * Returns:
1363 * This function returns zero.
1365 static int
1366 lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
1368 struct lpfc_debug *debug = file->private_data;
1370 if (debug->op == LPFC_IDIAG_OP_WR) {
1371 switch (idiag.cmd.opcode) {
1372 case LPFC_IDIAG_CMD_PCICFG_WR:
1373 case LPFC_IDIAG_CMD_PCICFG_ST:
1374 case LPFC_IDIAG_CMD_PCICFG_CL:
1375 case LPFC_IDIAG_CMD_QUEACC_WR:
1376 case LPFC_IDIAG_CMD_QUEACC_ST:
1377 case LPFC_IDIAG_CMD_QUEACC_CL:
1378 memset(&idiag, 0, sizeof(idiag));
1379 break;
1380 default:
1381 break;
1385 /* Free the buffers to the file operation */
1386 kfree(debug->buffer);
1387 kfree(debug);
1389 return 0;
1393 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
1394 * @file: The file pointer to read from.
1395 * @buf: The buffer to copy the data to.
1396 * @nbytes: The number of bytes to read.
1397 * @ppos: The position in the file to start reading from.
1399 * Description:
1400 * This routine reads data from the @phba pci config space according to the
1401 * idiag command, and copies to user @buf. Depending on the PCI config space
1402 * read command setup, it does either a single register read of a byte
1403 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
1404 * registers from the 4K extended PCI config space.
1406 * Returns:
1407 * This function returns the amount of data that was read (this could be less
1408 * than @nbytes if the end of the file was reached) or a negative error value.
1410 static ssize_t
1411 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
1412 loff_t *ppos)
1414 struct lpfc_debug *debug = file->private_data;
1415 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1416 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
1417 int where, count;
1418 char *pbuffer;
1419 struct pci_dev *pdev;
1420 uint32_t u32val;
1421 uint16_t u16val;
1422 uint8_t u8val;
1424 pdev = phba->pcidev;
1425 if (!pdev)
1426 return 0;
1428 /* This is a user read operation */
1429 debug->op = LPFC_IDIAG_OP_RD;
1431 if (!debug->buffer)
1432 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
1433 if (!debug->buffer)
1434 return 0;
1435 pbuffer = debug->buffer;
1437 if (*ppos)
1438 return 0;
1440 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
1441 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1442 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
1443 } else
1444 return 0;
1446 /* Read single PCI config space register */
1447 switch (count) {
1448 case SIZE_U8: /* byte (8 bits) */
1449 pci_read_config_byte(pdev, where, &u8val);
1450 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1451 "%03x: %02x\n", where, u8val);
1452 break;
1453 case SIZE_U16: /* word (16 bits) */
1454 pci_read_config_word(pdev, where, &u16val);
1455 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1456 "%03x: %04x\n", where, u16val);
1457 break;
1458 case SIZE_U32: /* double word (32 bits) */
1459 pci_read_config_dword(pdev, where, &u32val);
1460 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1461 "%03x: %08x\n", where, u32val);
1462 break;
1463 case LPFC_PCI_CFG_BROWSE: /* browse all */
1464 goto pcicfg_browse;
1465 break;
1466 default:
1467 /* illegal count */
1468 len = 0;
1469 break;
1471 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1473 pcicfg_browse:
1475 /* Browse all PCI config space registers */
1476 offset_label = idiag.offset.last_rd;
1477 offset = offset_label;
1479 /* Read PCI config space */
1480 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1481 "%03x: ", offset_label);
1482 while (index > 0) {
1483 pci_read_config_dword(pdev, offset, &u32val);
1484 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1485 "%08x ", u32val);
1486 offset += sizeof(uint32_t);
1487 if (offset >= LPFC_PCI_CFG_SIZE) {
1488 len += snprintf(pbuffer+len,
1489 LPFC_PCI_CFG_SIZE-len, "\n");
1490 break;
1492 index -= sizeof(uint32_t);
1493 if (!index)
1494 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1495 "\n");
1496 else if (!(index % (8 * sizeof(uint32_t)))) {
1497 offset_label += (8 * sizeof(uint32_t));
1498 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
1499 "\n%03x: ", offset_label);
1503 /* Set up the offset for next portion of pci cfg read */
1504 if (index == 0) {
1505 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
1506 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
1507 idiag.offset.last_rd = 0;
1508 } else
1509 idiag.offset.last_rd = 0;
1511 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1515 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
1516 * @file: The file pointer to read from.
1517 * @buf: The buffer to copy the user data from.
1518 * @nbytes: The number of bytes to get.
1519 * @ppos: The position in the file to start reading from.
1521 * This routine get the debugfs idiag command struct from user space and
1522 * then perform the syntax check for PCI config space read or write command
1523 * accordingly. In the case of PCI config space read command, it sets up
1524 * the command in the idiag command struct for the debugfs read operation.
1525 * In the case of PCI config space write operation, it executes the write
1526 * operation into the PCI config space accordingly.
1528 * It returns the @nbytges passing in from debugfs user space when successful.
1529 * In case of error conditions, it returns proper error code back to the user
1530 * space.
1532 static ssize_t
1533 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
1534 size_t nbytes, loff_t *ppos)
1536 struct lpfc_debug *debug = file->private_data;
1537 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1538 uint32_t where, value, count;
1539 uint32_t u32val;
1540 uint16_t u16val;
1541 uint8_t u8val;
1542 struct pci_dev *pdev;
1543 int rc;
1545 pdev = phba->pcidev;
1546 if (!pdev)
1547 return -EFAULT;
1549 /* This is a user write operation */
1550 debug->op = LPFC_IDIAG_OP_WR;
1552 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
1553 if (rc < 0)
1554 return rc;
1556 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
1557 /* Sanity check on PCI config read command line arguments */
1558 if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
1559 goto error_out;
1560 /* Read command from PCI config space, set up command fields */
1561 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1562 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
1563 if (count == LPFC_PCI_CFG_BROWSE) {
1564 if (where % sizeof(uint32_t))
1565 goto error_out;
1566 /* Starting offset to browse */
1567 idiag.offset.last_rd = where;
1568 } else if ((count != sizeof(uint8_t)) &&
1569 (count != sizeof(uint16_t)) &&
1570 (count != sizeof(uint32_t)))
1571 goto error_out;
1572 if (count == sizeof(uint8_t)) {
1573 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
1574 goto error_out;
1575 if (where % sizeof(uint8_t))
1576 goto error_out;
1578 if (count == sizeof(uint16_t)) {
1579 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
1580 goto error_out;
1581 if (where % sizeof(uint16_t))
1582 goto error_out;
1584 if (count == sizeof(uint32_t)) {
1585 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
1586 goto error_out;
1587 if (where % sizeof(uint32_t))
1588 goto error_out;
1590 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
1591 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
1592 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1593 /* Sanity check on PCI config write command line arguments */
1594 if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
1595 goto error_out;
1596 /* Write command to PCI config space, read-modify-write */
1597 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
1598 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
1599 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX];
1600 /* Sanity checks */
1601 if ((count != sizeof(uint8_t)) &&
1602 (count != sizeof(uint16_t)) &&
1603 (count != sizeof(uint32_t)))
1604 goto error_out;
1605 if (count == sizeof(uint8_t)) {
1606 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
1607 goto error_out;
1608 if (where % sizeof(uint8_t))
1609 goto error_out;
1610 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1611 pci_write_config_byte(pdev, where,
1612 (uint8_t)value);
1613 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1614 rc = pci_read_config_byte(pdev, where, &u8val);
1615 if (!rc) {
1616 u8val |= (uint8_t)value;
1617 pci_write_config_byte(pdev, where,
1618 u8val);
1621 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1622 rc = pci_read_config_byte(pdev, where, &u8val);
1623 if (!rc) {
1624 u8val &= (uint8_t)(~value);
1625 pci_write_config_byte(pdev, where,
1626 u8val);
1630 if (count == sizeof(uint16_t)) {
1631 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
1632 goto error_out;
1633 if (where % sizeof(uint16_t))
1634 goto error_out;
1635 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1636 pci_write_config_word(pdev, where,
1637 (uint16_t)value);
1638 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1639 rc = pci_read_config_word(pdev, where, &u16val);
1640 if (!rc) {
1641 u16val |= (uint16_t)value;
1642 pci_write_config_word(pdev, where,
1643 u16val);
1646 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1647 rc = pci_read_config_word(pdev, where, &u16val);
1648 if (!rc) {
1649 u16val &= (uint16_t)(~value);
1650 pci_write_config_word(pdev, where,
1651 u16val);
1655 if (count == sizeof(uint32_t)) {
1656 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
1657 goto error_out;
1658 if (where % sizeof(uint32_t))
1659 goto error_out;
1660 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
1661 pci_write_config_dword(pdev, where, value);
1662 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
1663 rc = pci_read_config_dword(pdev, where,
1664 &u32val);
1665 if (!rc) {
1666 u32val |= value;
1667 pci_write_config_dword(pdev, where,
1668 u32val);
1671 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
1672 rc = pci_read_config_dword(pdev, where,
1673 &u32val);
1674 if (!rc) {
1675 u32val &= ~value;
1676 pci_write_config_dword(pdev, where,
1677 u32val);
1681 } else
1682 /* All other opecodes are illegal for now */
1683 goto error_out;
1685 return nbytes;
1686 error_out:
1687 memset(&idiag, 0, sizeof(idiag));
1688 return -EINVAL;
1692 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read
1693 * @file: The file pointer to read from.
1694 * @buf: The buffer to copy the data to.
1695 * @nbytes: The number of bytes to read.
1696 * @ppos: The position in the file to start reading from.
1698 * Description:
1699 * This routine reads data from the @phba pci bar memory mapped space
1700 * according to the idiag command, and copies to user @buf.
1702 * Returns:
1703 * This function returns the amount of data that was read (this could be less
1704 * than @nbytes if the end of the file was reached) or a negative error value.
1706 static ssize_t
1707 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
1708 loff_t *ppos)
1710 struct lpfc_debug *debug = file->private_data;
1711 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1712 int offset_label, offset, offset_run, len = 0, index;
1713 int bar_num, acc_range, bar_size;
1714 char *pbuffer;
1715 void __iomem *mem_mapped_bar;
1716 uint32_t if_type;
1717 struct pci_dev *pdev;
1718 uint32_t u32val;
1720 pdev = phba->pcidev;
1721 if (!pdev)
1722 return 0;
1724 /* This is a user read operation */
1725 debug->op = LPFC_IDIAG_OP_RD;
1727 if (!debug->buffer)
1728 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL);
1729 if (!debug->buffer)
1730 return 0;
1731 pbuffer = debug->buffer;
1733 if (*ppos)
1734 return 0;
1736 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
1737 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
1738 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
1739 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
1740 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
1741 } else
1742 return 0;
1744 if (acc_range == 0)
1745 return 0;
1747 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1748 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1749 if (bar_num == IDIAG_BARACC_BAR_0)
1750 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1751 else if (bar_num == IDIAG_BARACC_BAR_1)
1752 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
1753 else if (bar_num == IDIAG_BARACC_BAR_2)
1754 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
1755 else
1756 return 0;
1757 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1758 if (bar_num == IDIAG_BARACC_BAR_0)
1759 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1760 else
1761 return 0;
1762 } else
1763 return 0;
1765 /* Read single PCI bar space register */
1766 if (acc_range == SINGLE_WORD) {
1767 offset_run = offset;
1768 u32val = readl(mem_mapped_bar + offset_run);
1769 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1770 "%05x: %08x\n", offset_run, u32val);
1771 } else
1772 goto baracc_browse;
1774 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1776 baracc_browse:
1778 /* Browse all PCI bar space registers */
1779 offset_label = idiag.offset.last_rd;
1780 offset_run = offset_label;
1782 /* Read PCI bar memory mapped space */
1783 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1784 "%05x: ", offset_label);
1785 index = LPFC_PCI_BAR_RD_SIZE;
1786 while (index > 0) {
1787 u32val = readl(mem_mapped_bar + offset_run);
1788 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
1789 "%08x ", u32val);
1790 offset_run += sizeof(uint32_t);
1791 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1792 if (offset_run >= bar_size) {
1793 len += snprintf(pbuffer+len,
1794 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1795 break;
1797 } else {
1798 if (offset_run >= offset +
1799 (acc_range * sizeof(uint32_t))) {
1800 len += snprintf(pbuffer+len,
1801 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1802 break;
1805 index -= sizeof(uint32_t);
1806 if (!index)
1807 len += snprintf(pbuffer+len,
1808 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
1809 else if (!(index % (8 * sizeof(uint32_t)))) {
1810 offset_label += (8 * sizeof(uint32_t));
1811 len += snprintf(pbuffer+len,
1812 LPFC_PCI_BAR_RD_BUF_SIZE-len,
1813 "\n%05x: ", offset_label);
1817 /* Set up the offset for next portion of pci bar read */
1818 if (index == 0) {
1819 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE;
1820 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1821 if (idiag.offset.last_rd >= bar_size)
1822 idiag.offset.last_rd = 0;
1823 } else {
1824 if (offset_run >= offset +
1825 (acc_range * sizeof(uint32_t)))
1826 idiag.offset.last_rd = offset;
1828 } else {
1829 if (acc_range == LPFC_PCI_BAR_BROWSE)
1830 idiag.offset.last_rd = 0;
1831 else
1832 idiag.offset.last_rd = offset;
1835 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
1839 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
1840 * @file: The file pointer to read from.
1841 * @buf: The buffer to copy the user data from.
1842 * @nbytes: The number of bytes to get.
1843 * @ppos: The position in the file to start reading from.
1845 * This routine get the debugfs idiag command struct from user space and
1846 * then perform the syntax check for PCI bar memory mapped space read or
1847 * write command accordingly. In the case of PCI bar memory mapped space
1848 * read command, it sets up the command in the idiag command struct for
1849 * the debugfs read operation. In the case of PCI bar memorpy mapped space
1850 * write operation, it executes the write operation into the PCI bar memory
1851 * mapped space accordingly.
1853 * It returns the @nbytges passing in from debugfs user space when successful.
1854 * In case of error conditions, it returns proper error code back to the user
1855 * space.
1857 static ssize_t
1858 lpfc_idiag_baracc_write(struct file *file, const char __user *buf,
1859 size_t nbytes, loff_t *ppos)
1861 struct lpfc_debug *debug = file->private_data;
1862 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1863 uint32_t bar_num, bar_size, offset, value, acc_range;
1864 struct pci_dev *pdev;
1865 void __iomem *mem_mapped_bar;
1866 uint32_t if_type;
1867 uint32_t u32val;
1868 int rc;
1870 pdev = phba->pcidev;
1871 if (!pdev)
1872 return -EFAULT;
1874 /* This is a user write operation */
1875 debug->op = LPFC_IDIAG_OP_WR;
1877 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
1878 if (rc < 0)
1879 return rc;
1881 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1882 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
1884 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1885 if ((bar_num != IDIAG_BARACC_BAR_0) &&
1886 (bar_num != IDIAG_BARACC_BAR_1) &&
1887 (bar_num != IDIAG_BARACC_BAR_2))
1888 goto error_out;
1889 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1890 if (bar_num != IDIAG_BARACC_BAR_0)
1891 goto error_out;
1892 } else
1893 goto error_out;
1895 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
1896 if (bar_num == IDIAG_BARACC_BAR_0) {
1897 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1898 LPFC_PCI_IF0_BAR0_SIZE;
1899 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1900 } else if (bar_num == IDIAG_BARACC_BAR_1) {
1901 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1902 LPFC_PCI_IF0_BAR1_SIZE;
1903 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
1904 } else if (bar_num == IDIAG_BARACC_BAR_2) {
1905 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1906 LPFC_PCI_IF0_BAR2_SIZE;
1907 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
1908 } else
1909 goto error_out;
1910 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
1911 if (bar_num == IDIAG_BARACC_BAR_0) {
1912 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
1913 LPFC_PCI_IF2_BAR0_SIZE;
1914 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
1915 } else
1916 goto error_out;
1917 } else
1918 goto error_out;
1920 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
1921 if (offset % sizeof(uint32_t))
1922 goto error_out;
1924 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
1925 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
1926 /* Sanity check on PCI config read command line arguments */
1927 if (rc != LPFC_PCI_BAR_RD_CMD_ARG)
1928 goto error_out;
1929 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
1930 if (acc_range == LPFC_PCI_BAR_BROWSE) {
1931 if (offset > bar_size - sizeof(uint32_t))
1932 goto error_out;
1933 /* Starting offset to browse */
1934 idiag.offset.last_rd = offset;
1935 } else if (acc_range > SINGLE_WORD) {
1936 if (offset + acc_range * sizeof(uint32_t) > bar_size)
1937 goto error_out;
1938 /* Starting offset to browse */
1939 idiag.offset.last_rd = offset;
1940 } else if (acc_range != SINGLE_WORD)
1941 goto error_out;
1942 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR ||
1943 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST ||
1944 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
1945 /* Sanity check on PCI bar write command line arguments */
1946 if (rc != LPFC_PCI_BAR_WR_CMD_ARG)
1947 goto error_out;
1948 /* Write command to PCI bar space, read-modify-write */
1949 acc_range = SINGLE_WORD;
1950 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX];
1951 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) {
1952 writel(value, mem_mapped_bar + offset);
1953 readl(mem_mapped_bar + offset);
1955 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) {
1956 u32val = readl(mem_mapped_bar + offset);
1957 u32val |= value;
1958 writel(u32val, mem_mapped_bar + offset);
1959 readl(mem_mapped_bar + offset);
1961 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
1962 u32val = readl(mem_mapped_bar + offset);
1963 u32val &= ~value;
1964 writel(u32val, mem_mapped_bar + offset);
1965 readl(mem_mapped_bar + offset);
1967 } else
1968 /* All other opecodes are illegal for now */
1969 goto error_out;
1971 return nbytes;
1972 error_out:
1973 memset(&idiag, 0, sizeof(idiag));
1974 return -EINVAL;
1978 * lpfc_idiag_queinfo_read - idiag debugfs read queue information
1979 * @file: The file pointer to read from.
1980 * @buf: The buffer to copy the data to.
1981 * @nbytes: The number of bytes to read.
1982 * @ppos: The position in the file to start reading from.
1984 * Description:
1985 * This routine reads data from the @phba SLI4 PCI function queue information,
1986 * and copies to user @buf.
1988 * Returns:
1989 * This function returns the amount of data that was read (this could be less
1990 * than @nbytes if the end of the file was reached) or a negative error value.
1992 static ssize_t
1993 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
1994 loff_t *ppos)
1996 struct lpfc_debug *debug = file->private_data;
1997 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
1998 int len = 0;
1999 char *pbuffer;
2000 int x, cnt;
2001 int max_cnt;
2002 struct lpfc_queue *qp = NULL;
2005 if (!debug->buffer)
2006 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
2007 if (!debug->buffer)
2008 return 0;
2009 pbuffer = debug->buffer;
2010 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 128;
2012 if (*ppos)
2013 return 0;
2015 spin_lock_irq(&phba->hbalock);
2017 /* Fast-path event queue */
2018 if (phba->sli4_hba.hba_eq && phba->cfg_fcp_io_channel) {
2019 cnt = phba->cfg_fcp_io_channel;
2021 for (x = 0; x < cnt; x++) {
2023 /* Fast-path EQ */
2024 qp = phba->sli4_hba.hba_eq[x];
2025 if (!qp)
2026 goto proc_cq;
2028 len += snprintf(pbuffer+len,
2029 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2030 "\nHBA EQ info: "
2031 "EQ-STAT[max:x%x noE:x%x "
2032 "bs:x%x proc:x%llx]\n",
2033 qp->q_cnt_1, qp->q_cnt_2,
2034 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
2036 len += snprintf(pbuffer+len,
2037 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2038 "EQID[%02d], "
2039 "QE-CNT[%04d], QE-SIZE[%04d], "
2040 "HOST-IDX[%04d], PORT-IDX[%04d]",
2041 qp->queue_id,
2042 qp->entry_count,
2043 qp->entry_size,
2044 qp->host_index,
2045 qp->hba_index);
2048 /* Reset max counter */
2049 qp->EQ_max_eqe = 0;
2051 len += snprintf(pbuffer+len,
2052 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2053 if (len >= max_cnt)
2054 goto too_big;
2055 proc_cq:
2056 /* Fast-path FCP CQ */
2057 qp = phba->sli4_hba.fcp_cq[x];
2058 len += snprintf(pbuffer+len,
2059 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2060 "\tFCP CQ info: ");
2061 len += snprintf(pbuffer+len,
2062 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2063 "AssocEQID[%02d]: "
2064 "CQ STAT[max:x%x relw:x%x "
2065 "xabt:x%x wq:x%llx]\n",
2066 qp->assoc_qid,
2067 qp->q_cnt_1, qp->q_cnt_2,
2068 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
2069 len += snprintf(pbuffer+len,
2070 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2071 "\tCQID[%02d], "
2072 "QE-CNT[%04d], QE-SIZE[%04d], "
2073 "HOST-IDX[%04d], PORT-IDX[%04d]",
2074 qp->queue_id, qp->entry_count,
2075 qp->entry_size, qp->host_index,
2076 qp->hba_index);
2079 /* Reset max counter */
2080 qp->CQ_max_cqe = 0;
2082 len += snprintf(pbuffer+len,
2083 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2084 if (len >= max_cnt)
2085 goto too_big;
2087 /* Fast-path FCP WQ */
2088 qp = phba->sli4_hba.fcp_wq[x];
2090 len += snprintf(pbuffer+len,
2091 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2092 "\t\tFCP WQ info: ");
2093 len += snprintf(pbuffer+len,
2094 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2095 "AssocCQID[%02d]: "
2096 "WQ-STAT[oflow:x%x posted:x%llx]\n",
2097 qp->assoc_qid,
2098 qp->q_cnt_1, (unsigned long long)qp->q_cnt_4);
2099 len += snprintf(pbuffer+len,
2100 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2101 "\t\tWQID[%02d], "
2102 "QE-CNT[%04d], QE-SIZE[%04d], "
2103 "HOST-IDX[%04d], PORT-IDX[%04d]",
2104 qp->queue_id,
2105 qp->entry_count,
2106 qp->entry_size,
2107 qp->host_index,
2108 qp->hba_index);
2110 len += snprintf(pbuffer+len,
2111 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2112 if (len >= max_cnt)
2113 goto too_big;
2115 if (x)
2116 continue;
2118 /* Only EQ 0 has slow path CQs configured */
2120 /* Slow-path mailbox CQ */
2121 qp = phba->sli4_hba.mbx_cq;
2122 if (qp) {
2123 len += snprintf(pbuffer+len,
2124 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2125 "\tMBX CQ info: ");
2126 len += snprintf(pbuffer+len,
2127 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2128 "AssocEQID[%02d]: "
2129 "CQ-STAT[mbox:x%x relw:x%x "
2130 "xabt:x%x wq:x%llx]\n",
2131 qp->assoc_qid,
2132 qp->q_cnt_1, qp->q_cnt_2,
2133 qp->q_cnt_3,
2134 (unsigned long long)qp->q_cnt_4);
2135 len += snprintf(pbuffer+len,
2136 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2137 "\tCQID[%02d], "
2138 "QE-CNT[%04d], QE-SIZE[%04d], "
2139 "HOST-IDX[%04d], PORT-IDX[%04d]",
2140 qp->queue_id, qp->entry_count,
2141 qp->entry_size, qp->host_index,
2142 qp->hba_index);
2144 len += snprintf(pbuffer+len,
2145 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2146 if (len >= max_cnt)
2147 goto too_big;
2150 /* Slow-path MBOX MQ */
2151 qp = phba->sli4_hba.mbx_wq;
2152 if (qp) {
2153 len += snprintf(pbuffer+len,
2154 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2155 "\t\tMBX MQ info: ");
2156 len += snprintf(pbuffer+len,
2157 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2158 "AssocCQID[%02d]:\n",
2159 phba->sli4_hba.mbx_wq->assoc_qid);
2160 len += snprintf(pbuffer+len,
2161 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2162 "\t\tWQID[%02d], "
2163 "QE-CNT[%04d], QE-SIZE[%04d], "
2164 "HOST-IDX[%04d], PORT-IDX[%04d]",
2165 qp->queue_id, qp->entry_count,
2166 qp->entry_size, qp->host_index,
2167 qp->hba_index);
2169 len += snprintf(pbuffer+len,
2170 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2171 if (len >= max_cnt)
2172 goto too_big;
2175 /* Slow-path ELS response CQ */
2176 qp = phba->sli4_hba.els_cq;
2177 if (qp) {
2178 len += snprintf(pbuffer+len,
2179 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2180 "\tELS CQ info: ");
2181 len += snprintf(pbuffer+len,
2182 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2183 "AssocEQID[%02d]: "
2184 "CQ-STAT[max:x%x relw:x%x "
2185 "xabt:x%x wq:x%llx]\n",
2186 qp->assoc_qid,
2187 qp->q_cnt_1, qp->q_cnt_2,
2188 qp->q_cnt_3,
2189 (unsigned long long)qp->q_cnt_4);
2190 len += snprintf(pbuffer+len,
2191 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2192 "\tCQID [%02d], "
2193 "QE-CNT[%04d], QE-SIZE[%04d], "
2194 "HOST-IDX[%04d], PORT-IDX[%04d]",
2195 qp->queue_id, qp->entry_count,
2196 qp->entry_size, qp->host_index,
2197 qp->hba_index);
2199 /* Reset max counter */
2200 qp->CQ_max_cqe = 0;
2202 len += snprintf(pbuffer+len,
2203 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2204 if (len >= max_cnt)
2205 goto too_big;
2208 /* Slow-path ELS WQ */
2209 qp = phba->sli4_hba.els_wq;
2210 if (qp) {
2211 len += snprintf(pbuffer+len,
2212 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2213 "\t\tELS WQ info: ");
2214 len += snprintf(pbuffer+len,
2215 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2216 "AssocCQID[%02d]: "
2217 " WQ-STAT[oflow:x%x "
2218 "posted:x%llx]\n",
2219 qp->assoc_qid,
2220 qp->q_cnt_1,
2221 (unsigned long long)qp->q_cnt_4);
2222 len += snprintf(pbuffer+len,
2223 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2224 "\t\tWQID[%02d], "
2225 "QE-CNT[%04d], QE-SIZE[%04d], "
2226 "HOST-IDX[%04d], PORT-IDX[%04d]",
2227 qp->queue_id, qp->entry_count,
2228 qp->entry_size, qp->host_index,
2229 qp->hba_index);
2231 len += snprintf(pbuffer+len,
2232 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2233 if (len >= max_cnt)
2234 goto too_big;
2237 if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) {
2238 /* Slow-path RQ header */
2239 qp = phba->sli4_hba.hdr_rq;
2241 len += snprintf(pbuffer+len,
2242 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2243 "\t\tRQ info: ");
2244 len += snprintf(pbuffer+len,
2245 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2246 "AssocCQID[%02d]: "
2247 "RQ-STAT[nopost:x%x nobuf:x%x "
2248 "trunc:x%x rcv:x%llx]\n",
2249 qp->assoc_qid,
2250 qp->q_cnt_1, qp->q_cnt_2,
2251 qp->q_cnt_3,
2252 (unsigned long long)qp->q_cnt_4);
2253 len += snprintf(pbuffer+len,
2254 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2255 "\t\tHQID[%02d], "
2256 "QE-CNT[%04d], QE-SIZE[%04d], "
2257 "HOST-IDX[%04d], PORT-IDX[%04d]\n",
2258 qp->queue_id,
2259 qp->entry_count,
2260 qp->entry_size,
2261 qp->host_index,
2262 qp->hba_index);
2264 /* Slow-path RQ data */
2265 qp = phba->sli4_hba.dat_rq;
2266 len += snprintf(pbuffer+len,
2267 LPFC_QUE_INFO_GET_BUF_SIZE-len,
2268 "\t\tDQID[%02d], "
2269 "QE-CNT[%04d], QE-SIZE[%04d], "
2270 "HOST-IDX[%04d], PORT-IDX[%04d]\n",
2271 qp->queue_id,
2272 qp->entry_count,
2273 qp->entry_size,
2274 qp->host_index,
2275 qp->hba_index);
2277 len += snprintf(pbuffer+len,
2278 LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
2283 spin_unlock_irq(&phba->hbalock);
2284 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2286 too_big:
2287 len += snprintf(pbuffer+len,
2288 LPFC_QUE_INFO_GET_BUF_SIZE-len, "Truncated ...\n");
2289 spin_unlock_irq(&phba->hbalock);
2290 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2294 * lpfc_idiag_que_param_check - queue access command parameter sanity check
2295 * @q: The pointer to queue structure.
2296 * @index: The index into a queue entry.
2297 * @count: The number of queue entries to access.
2299 * Description:
2300 * The routine performs sanity check on device queue access method commands.
2302 * Returns:
2303 * This function returns -EINVAL when fails the sanity check, otherwise, it
2304 * returns 0.
2306 static int
2307 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count)
2309 /* Only support single entry read or browsing */
2310 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE))
2311 return -EINVAL;
2312 if (index > q->entry_count - 1)
2313 return -EINVAL;
2314 return 0;
2318 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
2319 * @pbuffer: The pointer to buffer to copy the read data into.
2320 * @pque: The pointer to the queue to be read.
2321 * @index: The index into the queue entry.
2323 * Description:
2324 * This routine reads out a single entry from the given queue's index location
2325 * and copies it into the buffer provided.
2327 * Returns:
2328 * This function returns 0 when it fails, otherwise, it returns the length of
2329 * the data read into the buffer provided.
2331 static int
2332 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
2333 uint32_t index)
2335 int offset, esize;
2336 uint32_t *pentry;
2338 if (!pbuffer || !pque)
2339 return 0;
2341 esize = pque->entry_size;
2342 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
2343 "QE-INDEX[%04d]:\n", index);
2345 offset = 0;
2346 pentry = pque->qe[index].address;
2347 while (esize > 0) {
2348 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
2349 "%08x ", *pentry);
2350 pentry++;
2351 offset += sizeof(uint32_t);
2352 esize -= sizeof(uint32_t);
2353 if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
2354 len += snprintf(pbuffer+len,
2355 LPFC_QUE_ACC_BUF_SIZE-len, "\n");
2357 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
2359 return len;
2363 * lpfc_idiag_queacc_read - idiag debugfs read port queue
2364 * @file: The file pointer to read from.
2365 * @buf: The buffer to copy the data to.
2366 * @nbytes: The number of bytes to read.
2367 * @ppos: The position in the file to start reading from.
2369 * Description:
2370 * This routine reads data from the @phba device queue memory according to the
2371 * idiag command, and copies to user @buf. Depending on the queue dump read
2372 * command setup, it does either a single queue entry read or browing through
2373 * all entries of the queue.
2375 * Returns:
2376 * This function returns the amount of data that was read (this could be less
2377 * than @nbytes if the end of the file was reached) or a negative error value.
2379 static ssize_t
2380 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes,
2381 loff_t *ppos)
2383 struct lpfc_debug *debug = file->private_data;
2384 uint32_t last_index, index, count;
2385 struct lpfc_queue *pque = NULL;
2386 char *pbuffer;
2387 int len = 0;
2389 /* This is a user read operation */
2390 debug->op = LPFC_IDIAG_OP_RD;
2392 if (!debug->buffer)
2393 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL);
2394 if (!debug->buffer)
2395 return 0;
2396 pbuffer = debug->buffer;
2398 if (*ppos)
2399 return 0;
2401 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
2402 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
2403 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
2404 pque = (struct lpfc_queue *)idiag.ptr_private;
2405 } else
2406 return 0;
2408 /* Browse the queue starting from index */
2409 if (count == LPFC_QUE_ACC_BROWSE)
2410 goto que_browse;
2412 /* Read a single entry from the queue */
2413 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
2415 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2417 que_browse:
2419 /* Browse all entries from the queue */
2420 last_index = idiag.offset.last_rd;
2421 index = last_index;
2423 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) {
2424 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
2425 index++;
2426 if (index > pque->entry_count - 1)
2427 break;
2430 /* Set up the offset for next portion of pci cfg read */
2431 if (index > pque->entry_count - 1)
2432 index = 0;
2433 idiag.offset.last_rd = index;
2435 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2439 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
2440 * @file: The file pointer to read from.
2441 * @buf: The buffer to copy the user data from.
2442 * @nbytes: The number of bytes to get.
2443 * @ppos: The position in the file to start reading from.
2445 * This routine get the debugfs idiag command struct from user space and then
2446 * perform the syntax check for port queue read (dump) or write (set) command
2447 * accordingly. In the case of port queue read command, it sets up the command
2448 * in the idiag command struct for the following debugfs read operation. In
2449 * the case of port queue write operation, it executes the write operation
2450 * into the port queue entry accordingly.
2452 * It returns the @nbytges passing in from debugfs user space when successful.
2453 * In case of error conditions, it returns proper error code back to the user
2454 * space.
2456 static ssize_t
2457 lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
2458 size_t nbytes, loff_t *ppos)
2460 struct lpfc_debug *debug = file->private_data;
2461 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2462 uint32_t qidx, quetp, queid, index, count, offset, value;
2463 uint32_t *pentry;
2464 struct lpfc_queue *pque;
2465 int rc;
2467 /* This is a user write operation */
2468 debug->op = LPFC_IDIAG_OP_WR;
2470 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
2471 if (rc < 0)
2472 return rc;
2474 /* Get and sanity check on command feilds */
2475 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX];
2476 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX];
2477 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
2478 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
2479 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX];
2480 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX];
2482 /* Sanity check on command line arguments */
2483 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
2484 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
2485 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
2486 if (rc != LPFC_QUE_ACC_WR_CMD_ARG)
2487 goto error_out;
2488 if (count != 1)
2489 goto error_out;
2490 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
2491 if (rc != LPFC_QUE_ACC_RD_CMD_ARG)
2492 goto error_out;
2493 } else
2494 goto error_out;
2496 switch (quetp) {
2497 case LPFC_IDIAG_EQ:
2498 /* HBA event queue */
2499 if (phba->sli4_hba.hba_eq) {
2500 for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
2501 qidx++) {
2502 if (phba->sli4_hba.hba_eq[qidx] &&
2503 phba->sli4_hba.hba_eq[qidx]->queue_id ==
2504 queid) {
2505 /* Sanity check */
2506 rc = lpfc_idiag_que_param_check(
2507 phba->sli4_hba.hba_eq[qidx],
2508 index, count);
2509 if (rc)
2510 goto error_out;
2511 idiag.ptr_private =
2512 phba->sli4_hba.hba_eq[qidx];
2513 goto pass_check;
2517 goto error_out;
2518 break;
2519 case LPFC_IDIAG_CQ:
2520 /* MBX complete queue */
2521 if (phba->sli4_hba.mbx_cq &&
2522 phba->sli4_hba.mbx_cq->queue_id == queid) {
2523 /* Sanity check */
2524 rc = lpfc_idiag_que_param_check(
2525 phba->sli4_hba.mbx_cq, index, count);
2526 if (rc)
2527 goto error_out;
2528 idiag.ptr_private = phba->sli4_hba.mbx_cq;
2529 goto pass_check;
2531 /* ELS complete queue */
2532 if (phba->sli4_hba.els_cq &&
2533 phba->sli4_hba.els_cq->queue_id == queid) {
2534 /* Sanity check */
2535 rc = lpfc_idiag_que_param_check(
2536 phba->sli4_hba.els_cq, index, count);
2537 if (rc)
2538 goto error_out;
2539 idiag.ptr_private = phba->sli4_hba.els_cq;
2540 goto pass_check;
2542 /* FCP complete queue */
2543 if (phba->sli4_hba.fcp_cq) {
2544 qidx = 0;
2545 do {
2546 if (phba->sli4_hba.fcp_cq[qidx] &&
2547 phba->sli4_hba.fcp_cq[qidx]->queue_id ==
2548 queid) {
2549 /* Sanity check */
2550 rc = lpfc_idiag_que_param_check(
2551 phba->sli4_hba.fcp_cq[qidx],
2552 index, count);
2553 if (rc)
2554 goto error_out;
2555 idiag.ptr_private =
2556 phba->sli4_hba.fcp_cq[qidx];
2557 goto pass_check;
2559 } while (++qidx < phba->cfg_fcp_io_channel);
2561 goto error_out;
2562 break;
2563 case LPFC_IDIAG_MQ:
2564 /* MBX work queue */
2565 if (phba->sli4_hba.mbx_wq &&
2566 phba->sli4_hba.mbx_wq->queue_id == queid) {
2567 /* Sanity check */
2568 rc = lpfc_idiag_que_param_check(
2569 phba->sli4_hba.mbx_wq, index, count);
2570 if (rc)
2571 goto error_out;
2572 idiag.ptr_private = phba->sli4_hba.mbx_wq;
2573 goto pass_check;
2575 goto error_out;
2576 break;
2577 case LPFC_IDIAG_WQ:
2578 /* ELS work queue */
2579 if (phba->sli4_hba.els_wq &&
2580 phba->sli4_hba.els_wq->queue_id == queid) {
2581 /* Sanity check */
2582 rc = lpfc_idiag_que_param_check(
2583 phba->sli4_hba.els_wq, index, count);
2584 if (rc)
2585 goto error_out;
2586 idiag.ptr_private = phba->sli4_hba.els_wq;
2587 goto pass_check;
2589 /* FCP work queue */
2590 if (phba->sli4_hba.fcp_wq) {
2591 for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
2592 qidx++) {
2593 if (!phba->sli4_hba.fcp_wq[qidx])
2594 continue;
2595 if (phba->sli4_hba.fcp_wq[qidx]->queue_id ==
2596 queid) {
2597 /* Sanity check */
2598 rc = lpfc_idiag_que_param_check(
2599 phba->sli4_hba.fcp_wq[qidx],
2600 index, count);
2601 if (rc)
2602 goto error_out;
2603 idiag.ptr_private =
2604 phba->sli4_hba.fcp_wq[qidx];
2605 goto pass_check;
2609 goto error_out;
2610 break;
2611 case LPFC_IDIAG_RQ:
2612 /* HDR queue */
2613 if (phba->sli4_hba.hdr_rq &&
2614 phba->sli4_hba.hdr_rq->queue_id == queid) {
2615 /* Sanity check */
2616 rc = lpfc_idiag_que_param_check(
2617 phba->sli4_hba.hdr_rq, index, count);
2618 if (rc)
2619 goto error_out;
2620 idiag.ptr_private = phba->sli4_hba.hdr_rq;
2621 goto pass_check;
2623 /* DAT queue */
2624 if (phba->sli4_hba.dat_rq &&
2625 phba->sli4_hba.dat_rq->queue_id == queid) {
2626 /* Sanity check */
2627 rc = lpfc_idiag_que_param_check(
2628 phba->sli4_hba.dat_rq, index, count);
2629 if (rc)
2630 goto error_out;
2631 idiag.ptr_private = phba->sli4_hba.dat_rq;
2632 goto pass_check;
2634 goto error_out;
2635 break;
2636 default:
2637 goto error_out;
2638 break;
2641 pass_check:
2643 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
2644 if (count == LPFC_QUE_ACC_BROWSE)
2645 idiag.offset.last_rd = index;
2648 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
2649 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
2650 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
2651 /* Additional sanity checks on write operation */
2652 pque = (struct lpfc_queue *)idiag.ptr_private;
2653 if (offset > pque->entry_size/sizeof(uint32_t) - 1)
2654 goto error_out;
2655 pentry = pque->qe[index].address;
2656 pentry += offset;
2657 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR)
2658 *pentry = value;
2659 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST)
2660 *pentry |= value;
2661 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL)
2662 *pentry &= ~value;
2664 return nbytes;
2666 error_out:
2667 /* Clean out command structure on command error out */
2668 memset(&idiag, 0, sizeof(idiag));
2669 return -EINVAL;
2673 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register
2674 * @phba: The pointer to hba structure.
2675 * @pbuffer: The pointer to the buffer to copy the data to.
2676 * @len: The lenght of bytes to copied.
2677 * @drbregid: The id to doorbell registers.
2679 * Description:
2680 * This routine reads a doorbell register and copies its content to the
2681 * user buffer pointed to by @pbuffer.
2683 * Returns:
2684 * This function returns the amount of data that was copied into @pbuffer.
2686 static int
2687 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
2688 int len, uint32_t drbregid)
2691 if (!pbuffer)
2692 return 0;
2694 switch (drbregid) {
2695 case LPFC_DRB_EQCQ:
2696 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2697 "EQCQ-DRB-REG: 0x%08x\n",
2698 readl(phba->sli4_hba.EQCQDBregaddr));
2699 break;
2700 case LPFC_DRB_MQ:
2701 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2702 "MQ-DRB-REG: 0x%08x\n",
2703 readl(phba->sli4_hba.MQDBregaddr));
2704 break;
2705 case LPFC_DRB_WQ:
2706 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2707 "WQ-DRB-REG: 0x%08x\n",
2708 readl(phba->sli4_hba.WQDBregaddr));
2709 break;
2710 case LPFC_DRB_RQ:
2711 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
2712 "RQ-DRB-REG: 0x%08x\n",
2713 readl(phba->sli4_hba.RQDBregaddr));
2714 break;
2715 default:
2716 break;
2719 return len;
2723 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
2724 * @file: The file pointer to read from.
2725 * @buf: The buffer to copy the data to.
2726 * @nbytes: The number of bytes to read.
2727 * @ppos: The position in the file to start reading from.
2729 * Description:
2730 * This routine reads data from the @phba device doorbell register according
2731 * to the idiag command, and copies to user @buf. Depending on the doorbell
2732 * register read command setup, it does either a single doorbell register
2733 * read or dump all doorbell registers.
2735 * Returns:
2736 * This function returns the amount of data that was read (this could be less
2737 * than @nbytes if the end of the file was reached) or a negative error value.
2739 static ssize_t
2740 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes,
2741 loff_t *ppos)
2743 struct lpfc_debug *debug = file->private_data;
2744 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2745 uint32_t drb_reg_id, i;
2746 char *pbuffer;
2747 int len = 0;
2749 /* This is a user read operation */
2750 debug->op = LPFC_IDIAG_OP_RD;
2752 if (!debug->buffer)
2753 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL);
2754 if (!debug->buffer)
2755 return 0;
2756 pbuffer = debug->buffer;
2758 if (*ppos)
2759 return 0;
2761 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
2762 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
2763 else
2764 return 0;
2766 if (drb_reg_id == LPFC_DRB_ACC_ALL)
2767 for (i = 1; i <= LPFC_DRB_MAX; i++)
2768 len = lpfc_idiag_drbacc_read_reg(phba,
2769 pbuffer, len, i);
2770 else
2771 len = lpfc_idiag_drbacc_read_reg(phba,
2772 pbuffer, len, drb_reg_id);
2774 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2778 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
2779 * @file: The file pointer to read from.
2780 * @buf: The buffer to copy the user data from.
2781 * @nbytes: The number of bytes to get.
2782 * @ppos: The position in the file to start reading from.
2784 * This routine get the debugfs idiag command struct from user space and then
2785 * perform the syntax check for port doorbell register read (dump) or write
2786 * (set) command accordingly. In the case of port queue read command, it sets
2787 * up the command in the idiag command struct for the following debugfs read
2788 * operation. In the case of port doorbell register write operation, it
2789 * executes the write operation into the port doorbell register accordingly.
2791 * It returns the @nbytges passing in from debugfs user space when successful.
2792 * In case of error conditions, it returns proper error code back to the user
2793 * space.
2795 static ssize_t
2796 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf,
2797 size_t nbytes, loff_t *ppos)
2799 struct lpfc_debug *debug = file->private_data;
2800 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2801 uint32_t drb_reg_id, value, reg_val = 0;
2802 void __iomem *drb_reg;
2803 int rc;
2805 /* This is a user write operation */
2806 debug->op = LPFC_IDIAG_OP_WR;
2808 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
2809 if (rc < 0)
2810 return rc;
2812 /* Sanity check on command line arguments */
2813 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
2814 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX];
2816 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
2817 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
2818 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2819 if (rc != LPFC_DRB_ACC_WR_CMD_ARG)
2820 goto error_out;
2821 if (drb_reg_id > LPFC_DRB_MAX)
2822 goto error_out;
2823 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) {
2824 if (rc != LPFC_DRB_ACC_RD_CMD_ARG)
2825 goto error_out;
2826 if ((drb_reg_id > LPFC_DRB_MAX) &&
2827 (drb_reg_id != LPFC_DRB_ACC_ALL))
2828 goto error_out;
2829 } else
2830 goto error_out;
2832 /* Perform the write access operation */
2833 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
2834 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
2835 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2836 switch (drb_reg_id) {
2837 case LPFC_DRB_EQCQ:
2838 drb_reg = phba->sli4_hba.EQCQDBregaddr;
2839 break;
2840 case LPFC_DRB_MQ:
2841 drb_reg = phba->sli4_hba.MQDBregaddr;
2842 break;
2843 case LPFC_DRB_WQ:
2844 drb_reg = phba->sli4_hba.WQDBregaddr;
2845 break;
2846 case LPFC_DRB_RQ:
2847 drb_reg = phba->sli4_hba.RQDBregaddr;
2848 break;
2849 default:
2850 goto error_out;
2853 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR)
2854 reg_val = value;
2855 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) {
2856 reg_val = readl(drb_reg);
2857 reg_val |= value;
2859 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
2860 reg_val = readl(drb_reg);
2861 reg_val &= ~value;
2863 writel(reg_val, drb_reg);
2864 readl(drb_reg); /* flush */
2866 return nbytes;
2868 error_out:
2869 /* Clean out command structure on command error out */
2870 memset(&idiag, 0, sizeof(idiag));
2871 return -EINVAL;
2875 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
2876 * @phba: The pointer to hba structure.
2877 * @pbuffer: The pointer to the buffer to copy the data to.
2878 * @len: The lenght of bytes to copied.
2879 * @drbregid: The id to doorbell registers.
2881 * Description:
2882 * This routine reads a control register and copies its content to the
2883 * user buffer pointed to by @pbuffer.
2885 * Returns:
2886 * This function returns the amount of data that was copied into @pbuffer.
2888 static int
2889 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
2890 int len, uint32_t ctlregid)
2893 if (!pbuffer)
2894 return 0;
2896 switch (ctlregid) {
2897 case LPFC_CTL_PORT_SEM:
2898 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2899 "Port SemReg: 0x%08x\n",
2900 readl(phba->sli4_hba.conf_regs_memmap_p +
2901 LPFC_CTL_PORT_SEM_OFFSET));
2902 break;
2903 case LPFC_CTL_PORT_STA:
2904 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2905 "Port StaReg: 0x%08x\n",
2906 readl(phba->sli4_hba.conf_regs_memmap_p +
2907 LPFC_CTL_PORT_STA_OFFSET));
2908 break;
2909 case LPFC_CTL_PORT_CTL:
2910 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2911 "Port CtlReg: 0x%08x\n",
2912 readl(phba->sli4_hba.conf_regs_memmap_p +
2913 LPFC_CTL_PORT_CTL_OFFSET));
2914 break;
2915 case LPFC_CTL_PORT_ER1:
2916 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2917 "Port Er1Reg: 0x%08x\n",
2918 readl(phba->sli4_hba.conf_regs_memmap_p +
2919 LPFC_CTL_PORT_ER1_OFFSET));
2920 break;
2921 case LPFC_CTL_PORT_ER2:
2922 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2923 "Port Er2Reg: 0x%08x\n",
2924 readl(phba->sli4_hba.conf_regs_memmap_p +
2925 LPFC_CTL_PORT_ER2_OFFSET));
2926 break;
2927 case LPFC_CTL_PDEV_CTL:
2928 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
2929 "PDev CtlReg: 0x%08x\n",
2930 readl(phba->sli4_hba.conf_regs_memmap_p +
2931 LPFC_CTL_PDEV_CTL_OFFSET));
2932 break;
2933 default:
2934 break;
2936 return len;
2940 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
2941 * @file: The file pointer to read from.
2942 * @buf: The buffer to copy the data to.
2943 * @nbytes: The number of bytes to read.
2944 * @ppos: The position in the file to start reading from.
2946 * Description:
2947 * This routine reads data from the @phba port and device registers according
2948 * to the idiag command, and copies to user @buf.
2950 * Returns:
2951 * This function returns the amount of data that was read (this could be less
2952 * than @nbytes if the end of the file was reached) or a negative error value.
2954 static ssize_t
2955 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes,
2956 loff_t *ppos)
2958 struct lpfc_debug *debug = file->private_data;
2959 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2960 uint32_t ctl_reg_id, i;
2961 char *pbuffer;
2962 int len = 0;
2964 /* This is a user read operation */
2965 debug->op = LPFC_IDIAG_OP_RD;
2967 if (!debug->buffer)
2968 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL);
2969 if (!debug->buffer)
2970 return 0;
2971 pbuffer = debug->buffer;
2973 if (*ppos)
2974 return 0;
2976 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD)
2977 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
2978 else
2979 return 0;
2981 if (ctl_reg_id == LPFC_CTL_ACC_ALL)
2982 for (i = 1; i <= LPFC_CTL_MAX; i++)
2983 len = lpfc_idiag_ctlacc_read_reg(phba,
2984 pbuffer, len, i);
2985 else
2986 len = lpfc_idiag_ctlacc_read_reg(phba,
2987 pbuffer, len, ctl_reg_id);
2989 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2993 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
2994 * @file: The file pointer to read from.
2995 * @buf: The buffer to copy the user data from.
2996 * @nbytes: The number of bytes to get.
2997 * @ppos: The position in the file to start reading from.
2999 * This routine get the debugfs idiag command struct from user space and then
3000 * perform the syntax check for port and device control register read (dump)
3001 * or write (set) command accordingly.
3003 * It returns the @nbytges passing in from debugfs user space when successful.
3004 * In case of error conditions, it returns proper error code back to the user
3005 * space.
3007 static ssize_t
3008 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf,
3009 size_t nbytes, loff_t *ppos)
3011 struct lpfc_debug *debug = file->private_data;
3012 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3013 uint32_t ctl_reg_id, value, reg_val = 0;
3014 void __iomem *ctl_reg;
3015 int rc;
3017 /* This is a user write operation */
3018 debug->op = LPFC_IDIAG_OP_WR;
3020 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3021 if (rc < 0)
3022 return rc;
3024 /* Sanity check on command line arguments */
3025 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
3026 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX];
3028 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
3029 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
3030 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
3031 if (rc != LPFC_CTL_ACC_WR_CMD_ARG)
3032 goto error_out;
3033 if (ctl_reg_id > LPFC_CTL_MAX)
3034 goto error_out;
3035 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) {
3036 if (rc != LPFC_CTL_ACC_RD_CMD_ARG)
3037 goto error_out;
3038 if ((ctl_reg_id > LPFC_CTL_MAX) &&
3039 (ctl_reg_id != LPFC_CTL_ACC_ALL))
3040 goto error_out;
3041 } else
3042 goto error_out;
3044 /* Perform the write access operation */
3045 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
3046 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
3047 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
3048 switch (ctl_reg_id) {
3049 case LPFC_CTL_PORT_SEM:
3050 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3051 LPFC_CTL_PORT_SEM_OFFSET;
3052 break;
3053 case LPFC_CTL_PORT_STA:
3054 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3055 LPFC_CTL_PORT_STA_OFFSET;
3056 break;
3057 case LPFC_CTL_PORT_CTL:
3058 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3059 LPFC_CTL_PORT_CTL_OFFSET;
3060 break;
3061 case LPFC_CTL_PORT_ER1:
3062 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3063 LPFC_CTL_PORT_ER1_OFFSET;
3064 break;
3065 case LPFC_CTL_PORT_ER2:
3066 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3067 LPFC_CTL_PORT_ER2_OFFSET;
3068 break;
3069 case LPFC_CTL_PDEV_CTL:
3070 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
3071 LPFC_CTL_PDEV_CTL_OFFSET;
3072 break;
3073 default:
3074 goto error_out;
3077 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR)
3078 reg_val = value;
3079 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) {
3080 reg_val = readl(ctl_reg);
3081 reg_val |= value;
3083 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
3084 reg_val = readl(ctl_reg);
3085 reg_val &= ~value;
3087 writel(reg_val, ctl_reg);
3088 readl(ctl_reg); /* flush */
3090 return nbytes;
3092 error_out:
3093 /* Clean out command structure on command error out */
3094 memset(&idiag, 0, sizeof(idiag));
3095 return -EINVAL;
3099 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
3100 * @phba: Pointer to HBA context object.
3101 * @pbuffer: Pointer to data buffer.
3103 * Description:
3104 * This routine gets the driver mailbox access debugfs setup information.
3106 * Returns:
3107 * This function returns the amount of data that was read (this could be less
3108 * than @nbytes if the end of the file was reached) or a negative error value.
3110 static int
3111 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
3113 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
3114 int len = 0;
3116 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3117 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3118 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3119 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3121 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3122 "mbx_dump_map: 0x%08x\n", mbx_dump_map);
3123 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3124 "mbx_dump_cnt: %04d\n", mbx_dump_cnt);
3125 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3126 "mbx_word_cnt: %04d\n", mbx_word_cnt);
3127 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
3128 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
3130 return len;
3134 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
3135 * @file: The file pointer to read from.
3136 * @buf: The buffer to copy the data to.
3137 * @nbytes: The number of bytes to read.
3138 * @ppos: The position in the file to start reading from.
3140 * Description:
3141 * This routine reads data from the @phba driver mailbox access debugfs setup
3142 * information.
3144 * Returns:
3145 * This function returns the amount of data that was read (this could be less
3146 * than @nbytes if the end of the file was reached) or a negative error value.
3148 static ssize_t
3149 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes,
3150 loff_t *ppos)
3152 struct lpfc_debug *debug = file->private_data;
3153 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3154 char *pbuffer;
3155 int len = 0;
3157 /* This is a user read operation */
3158 debug->op = LPFC_IDIAG_OP_RD;
3160 if (!debug->buffer)
3161 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL);
3162 if (!debug->buffer)
3163 return 0;
3164 pbuffer = debug->buffer;
3166 if (*ppos)
3167 return 0;
3169 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) &&
3170 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP))
3171 return 0;
3173 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer);
3175 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3179 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
3180 * @file: The file pointer to read from.
3181 * @buf: The buffer to copy the user data from.
3182 * @nbytes: The number of bytes to get.
3183 * @ppos: The position in the file to start reading from.
3185 * This routine get the debugfs idiag command struct from user space and then
3186 * perform the syntax check for driver mailbox command (dump) and sets up the
3187 * necessary states in the idiag command struct accordingly.
3189 * It returns the @nbytges passing in from debugfs user space when successful.
3190 * In case of error conditions, it returns proper error code back to the user
3191 * space.
3193 static ssize_t
3194 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf,
3195 size_t nbytes, loff_t *ppos)
3197 struct lpfc_debug *debug = file->private_data;
3198 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
3199 int rc;
3201 /* This is a user write operation */
3202 debug->op = LPFC_IDIAG_OP_WR;
3204 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3205 if (rc < 0)
3206 return rc;
3208 /* Sanity check on command line arguments */
3209 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3210 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3211 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3212 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3214 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) {
3215 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL))
3216 goto error_out;
3217 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) &&
3218 (mbx_dump_map != LPFC_MBX_DMP_ALL))
3219 goto error_out;
3220 if (mbx_word_cnt > sizeof(MAILBOX_t))
3221 goto error_out;
3222 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) {
3223 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL))
3224 goto error_out;
3225 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) &&
3226 (mbx_dump_map != LPFC_MBX_DMP_ALL))
3227 goto error_out;
3228 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4)
3229 goto error_out;
3230 if (mbx_mbox_cmd != 0x9b)
3231 goto error_out;
3232 } else
3233 goto error_out;
3235 if (mbx_word_cnt == 0)
3236 goto error_out;
3237 if (rc != LPFC_MBX_DMP_ARG)
3238 goto error_out;
3239 if (mbx_mbox_cmd & ~0xff)
3240 goto error_out;
3242 /* condition for stop mailbox dump */
3243 if (mbx_dump_cnt == 0)
3244 goto reset_out;
3246 return nbytes;
3248 reset_out:
3249 /* Clean out command structure on command error out */
3250 memset(&idiag, 0, sizeof(idiag));
3251 return nbytes;
3253 error_out:
3254 /* Clean out command structure on command error out */
3255 memset(&idiag, 0, sizeof(idiag));
3256 return -EINVAL;
3260 * lpfc_idiag_extacc_avail_get - get the available extents information
3261 * @phba: pointer to lpfc hba data structure.
3262 * @pbuffer: pointer to internal buffer.
3263 * @len: length into the internal buffer data has been copied.
3265 * Description:
3266 * This routine is to get the available extent information.
3268 * Returns:
3269 * overall lenth of the data read into the internal buffer.
3271 static int
3272 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
3274 uint16_t ext_cnt, ext_size;
3276 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3277 "\nAvailable Extents Information:\n");
3279 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3280 "\tPort Available VPI extents: ");
3281 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
3282 &ext_cnt, &ext_size);
3283 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3284 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3286 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3287 "\tPort Available VFI extents: ");
3288 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
3289 &ext_cnt, &ext_size);
3290 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3291 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3293 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3294 "\tPort Available RPI extents: ");
3295 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
3296 &ext_cnt, &ext_size);
3297 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3298 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3300 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3301 "\tPort Available XRI extents: ");
3302 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
3303 &ext_cnt, &ext_size);
3304 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3305 "Count %3d, Size %3d\n", ext_cnt, ext_size);
3307 return len;
3311 * lpfc_idiag_extacc_alloc_get - get the allocated extents information
3312 * @phba: pointer to lpfc hba data structure.
3313 * @pbuffer: pointer to internal buffer.
3314 * @len: length into the internal buffer data has been copied.
3316 * Description:
3317 * This routine is to get the allocated extent information.
3319 * Returns:
3320 * overall lenth of the data read into the internal buffer.
3322 static int
3323 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
3325 uint16_t ext_cnt, ext_size;
3326 int rc;
3328 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3329 "\nAllocated Extents Information:\n");
3331 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3332 "\tHost Allocated VPI extents: ");
3333 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
3334 &ext_cnt, &ext_size);
3335 if (!rc)
3336 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3337 "Port %d Extent %3d, Size %3d\n",
3338 phba->brd_no, ext_cnt, ext_size);
3339 else
3340 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3341 "N/A\n");
3343 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3344 "\tHost Allocated VFI extents: ");
3345 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
3346 &ext_cnt, &ext_size);
3347 if (!rc)
3348 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3349 "Port %d Extent %3d, Size %3d\n",
3350 phba->brd_no, ext_cnt, ext_size);
3351 else
3352 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3353 "N/A\n");
3355 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3356 "\tHost Allocated RPI extents: ");
3357 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
3358 &ext_cnt, &ext_size);
3359 if (!rc)
3360 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3361 "Port %d Extent %3d, Size %3d\n",
3362 phba->brd_no, ext_cnt, ext_size);
3363 else
3364 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3365 "N/A\n");
3367 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3368 "\tHost Allocated XRI extents: ");
3369 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
3370 &ext_cnt, &ext_size);
3371 if (!rc)
3372 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3373 "Port %d Extent %3d, Size %3d\n",
3374 phba->brd_no, ext_cnt, ext_size);
3375 else
3376 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3377 "N/A\n");
3379 return len;
3383 * lpfc_idiag_extacc_drivr_get - get driver extent information
3384 * @phba: pointer to lpfc hba data structure.
3385 * @pbuffer: pointer to internal buffer.
3386 * @len: length into the internal buffer data has been copied.
3388 * Description:
3389 * This routine is to get the driver extent information.
3391 * Returns:
3392 * overall lenth of the data read into the internal buffer.
3394 static int
3395 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
3397 struct lpfc_rsrc_blks *rsrc_blks;
3398 int index;
3400 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3401 "\nDriver Extents Information:\n");
3403 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3404 "\tVPI extents:\n");
3405 index = 0;
3406 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
3407 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3408 "\t\tBlock %3d: Start %4d, Count %4d\n",
3409 index, rsrc_blks->rsrc_start,
3410 rsrc_blks->rsrc_size);
3411 index++;
3413 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3414 "\tVFI extents:\n");
3415 index = 0;
3416 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
3417 list) {
3418 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3419 "\t\tBlock %3d: Start %4d, Count %4d\n",
3420 index, rsrc_blks->rsrc_start,
3421 rsrc_blks->rsrc_size);
3422 index++;
3425 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3426 "\tRPI extents:\n");
3427 index = 0;
3428 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
3429 list) {
3430 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3431 "\t\tBlock %3d: Start %4d, Count %4d\n",
3432 index, rsrc_blks->rsrc_start,
3433 rsrc_blks->rsrc_size);
3434 index++;
3437 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3438 "\tXRI extents:\n");
3439 index = 0;
3440 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
3441 list) {
3442 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
3443 "\t\tBlock %3d: Start %4d, Count %4d\n",
3444 index, rsrc_blks->rsrc_start,
3445 rsrc_blks->rsrc_size);
3446 index++;
3449 return len;
3453 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
3454 * @file: The file pointer to read from.
3455 * @buf: The buffer to copy the user data from.
3456 * @nbytes: The number of bytes to get.
3457 * @ppos: The position in the file to start reading from.
3459 * This routine get the debugfs idiag command struct from user space and then
3460 * perform the syntax check for extent information access commands and sets
3461 * up the necessary states in the idiag command struct accordingly.
3463 * It returns the @nbytges passing in from debugfs user space when successful.
3464 * In case of error conditions, it returns proper error code back to the user
3465 * space.
3467 static ssize_t
3468 lpfc_idiag_extacc_write(struct file *file, const char __user *buf,
3469 size_t nbytes, loff_t *ppos)
3471 struct lpfc_debug *debug = file->private_data;
3472 uint32_t ext_map;
3473 int rc;
3475 /* This is a user write operation */
3476 debug->op = LPFC_IDIAG_OP_WR;
3478 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3479 if (rc < 0)
3480 return rc;
3482 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
3484 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
3485 goto error_out;
3486 if (rc != LPFC_EXT_ACC_CMD_ARG)
3487 goto error_out;
3488 if (!(ext_map & LPFC_EXT_ACC_ALL))
3489 goto error_out;
3491 return nbytes;
3492 error_out:
3493 /* Clean out command structure on command error out */
3494 memset(&idiag, 0, sizeof(idiag));
3495 return -EINVAL;
3499 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information
3500 * @file: The file pointer to read from.
3501 * @buf: The buffer to copy the data to.
3502 * @nbytes: The number of bytes to read.
3503 * @ppos: The position in the file to start reading from.
3505 * Description:
3506 * This routine reads data from the proper extent information according to
3507 * the idiag command, and copies to user @buf.
3509 * Returns:
3510 * This function returns the amount of data that was read (this could be less
3511 * than @nbytes if the end of the file was reached) or a negative error value.
3513 static ssize_t
3514 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes,
3515 loff_t *ppos)
3517 struct lpfc_debug *debug = file->private_data;
3518 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3519 char *pbuffer;
3520 uint32_t ext_map;
3521 int len = 0;
3523 /* This is a user read operation */
3524 debug->op = LPFC_IDIAG_OP_RD;
3526 if (!debug->buffer)
3527 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL);
3528 if (!debug->buffer)
3529 return 0;
3530 pbuffer = debug->buffer;
3531 if (*ppos)
3532 return 0;
3533 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
3534 return 0;
3536 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
3537 if (ext_map & LPFC_EXT_ACC_AVAIL)
3538 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len);
3539 if (ext_map & LPFC_EXT_ACC_ALLOC)
3540 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len);
3541 if (ext_map & LPFC_EXT_ACC_DRIVR)
3542 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len);
3544 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3547 #undef lpfc_debugfs_op_disc_trc
3548 static const struct file_operations lpfc_debugfs_op_disc_trc = {
3549 .owner = THIS_MODULE,
3550 .open = lpfc_debugfs_disc_trc_open,
3551 .llseek = lpfc_debugfs_lseek,
3552 .read = lpfc_debugfs_read,
3553 .release = lpfc_debugfs_release,
3556 #undef lpfc_debugfs_op_nodelist
3557 static const struct file_operations lpfc_debugfs_op_nodelist = {
3558 .owner = THIS_MODULE,
3559 .open = lpfc_debugfs_nodelist_open,
3560 .llseek = lpfc_debugfs_lseek,
3561 .read = lpfc_debugfs_read,
3562 .release = lpfc_debugfs_release,
3565 #undef lpfc_debugfs_op_hbqinfo
3566 static const struct file_operations lpfc_debugfs_op_hbqinfo = {
3567 .owner = THIS_MODULE,
3568 .open = lpfc_debugfs_hbqinfo_open,
3569 .llseek = lpfc_debugfs_lseek,
3570 .read = lpfc_debugfs_read,
3571 .release = lpfc_debugfs_release,
3574 #undef lpfc_debugfs_op_dumpHBASlim
3575 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
3576 .owner = THIS_MODULE,
3577 .open = lpfc_debugfs_dumpHBASlim_open,
3578 .llseek = lpfc_debugfs_lseek,
3579 .read = lpfc_debugfs_read,
3580 .release = lpfc_debugfs_release,
3583 #undef lpfc_debugfs_op_dumpHostSlim
3584 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
3585 .owner = THIS_MODULE,
3586 .open = lpfc_debugfs_dumpHostSlim_open,
3587 .llseek = lpfc_debugfs_lseek,
3588 .read = lpfc_debugfs_read,
3589 .release = lpfc_debugfs_release,
3592 #undef lpfc_debugfs_op_dumpData
3593 static const struct file_operations lpfc_debugfs_op_dumpData = {
3594 .owner = THIS_MODULE,
3595 .open = lpfc_debugfs_dumpData_open,
3596 .llseek = lpfc_debugfs_lseek,
3597 .read = lpfc_debugfs_read,
3598 .write = lpfc_debugfs_dumpDataDif_write,
3599 .release = lpfc_debugfs_dumpDataDif_release,
3602 #undef lpfc_debugfs_op_dumpDif
3603 static const struct file_operations lpfc_debugfs_op_dumpDif = {
3604 .owner = THIS_MODULE,
3605 .open = lpfc_debugfs_dumpDif_open,
3606 .llseek = lpfc_debugfs_lseek,
3607 .read = lpfc_debugfs_read,
3608 .write = lpfc_debugfs_dumpDataDif_write,
3609 .release = lpfc_debugfs_dumpDataDif_release,
3612 #undef lpfc_debugfs_op_dif_err
3613 static const struct file_operations lpfc_debugfs_op_dif_err = {
3614 .owner = THIS_MODULE,
3615 .open = simple_open,
3616 .llseek = lpfc_debugfs_lseek,
3617 .read = lpfc_debugfs_dif_err_read,
3618 .write = lpfc_debugfs_dif_err_write,
3619 .release = lpfc_debugfs_dif_err_release,
3622 #undef lpfc_debugfs_op_slow_ring_trc
3623 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
3624 .owner = THIS_MODULE,
3625 .open = lpfc_debugfs_slow_ring_trc_open,
3626 .llseek = lpfc_debugfs_lseek,
3627 .read = lpfc_debugfs_read,
3628 .release = lpfc_debugfs_release,
3631 static struct dentry *lpfc_debugfs_root = NULL;
3632 static atomic_t lpfc_debugfs_hba_count;
3635 * File operations for the iDiag debugfs
3637 #undef lpfc_idiag_op_pciCfg
3638 static const struct file_operations lpfc_idiag_op_pciCfg = {
3639 .owner = THIS_MODULE,
3640 .open = lpfc_idiag_open,
3641 .llseek = lpfc_debugfs_lseek,
3642 .read = lpfc_idiag_pcicfg_read,
3643 .write = lpfc_idiag_pcicfg_write,
3644 .release = lpfc_idiag_cmd_release,
3647 #undef lpfc_idiag_op_barAcc
3648 static const struct file_operations lpfc_idiag_op_barAcc = {
3649 .owner = THIS_MODULE,
3650 .open = lpfc_idiag_open,
3651 .llseek = lpfc_debugfs_lseek,
3652 .read = lpfc_idiag_baracc_read,
3653 .write = lpfc_idiag_baracc_write,
3654 .release = lpfc_idiag_cmd_release,
3657 #undef lpfc_idiag_op_queInfo
3658 static const struct file_operations lpfc_idiag_op_queInfo = {
3659 .owner = THIS_MODULE,
3660 .open = lpfc_idiag_open,
3661 .read = lpfc_idiag_queinfo_read,
3662 .release = lpfc_idiag_release,
3665 #undef lpfc_idiag_op_queAcc
3666 static const struct file_operations lpfc_idiag_op_queAcc = {
3667 .owner = THIS_MODULE,
3668 .open = lpfc_idiag_open,
3669 .llseek = lpfc_debugfs_lseek,
3670 .read = lpfc_idiag_queacc_read,
3671 .write = lpfc_idiag_queacc_write,
3672 .release = lpfc_idiag_cmd_release,
3675 #undef lpfc_idiag_op_drbAcc
3676 static const struct file_operations lpfc_idiag_op_drbAcc = {
3677 .owner = THIS_MODULE,
3678 .open = lpfc_idiag_open,
3679 .llseek = lpfc_debugfs_lseek,
3680 .read = lpfc_idiag_drbacc_read,
3681 .write = lpfc_idiag_drbacc_write,
3682 .release = lpfc_idiag_cmd_release,
3685 #undef lpfc_idiag_op_ctlAcc
3686 static const struct file_operations lpfc_idiag_op_ctlAcc = {
3687 .owner = THIS_MODULE,
3688 .open = lpfc_idiag_open,
3689 .llseek = lpfc_debugfs_lseek,
3690 .read = lpfc_idiag_ctlacc_read,
3691 .write = lpfc_idiag_ctlacc_write,
3692 .release = lpfc_idiag_cmd_release,
3695 #undef lpfc_idiag_op_mbxAcc
3696 static const struct file_operations lpfc_idiag_op_mbxAcc = {
3697 .owner = THIS_MODULE,
3698 .open = lpfc_idiag_open,
3699 .llseek = lpfc_debugfs_lseek,
3700 .read = lpfc_idiag_mbxacc_read,
3701 .write = lpfc_idiag_mbxacc_write,
3702 .release = lpfc_idiag_cmd_release,
3705 #undef lpfc_idiag_op_extAcc
3706 static const struct file_operations lpfc_idiag_op_extAcc = {
3707 .owner = THIS_MODULE,
3708 .open = lpfc_idiag_open,
3709 .llseek = lpfc_debugfs_lseek,
3710 .read = lpfc_idiag_extacc_read,
3711 .write = lpfc_idiag_extacc_write,
3712 .release = lpfc_idiag_cmd_release,
3715 #endif
3717 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
3718 * @phba: Pointer to HBA context object.
3719 * @dmabuf: Pointer to a DMA buffer descriptor.
3721 * Description:
3722 * This routine dump a bsg pass-through non-embedded mailbox command with
3723 * external buffer.
3725 void
3726 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
3727 enum mbox_type mbox_tp, enum dma_type dma_tp,
3728 enum sta_type sta_tp,
3729 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf)
3731 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3732 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt;
3733 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
3734 int len = 0;
3735 uint32_t do_dump = 0;
3736 uint32_t *pword;
3737 uint32_t i;
3739 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)
3740 return;
3742 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3743 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3744 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3745 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3747 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) ||
3748 (*mbx_dump_cnt == 0) ||
3749 (*mbx_word_cnt == 0))
3750 return;
3752 if (*mbx_mbox_cmd != 0x9B)
3753 return;
3755 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) {
3756 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) {
3757 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX;
3758 printk(KERN_ERR "\nRead mbox command (x%x), "
3759 "nemb:0x%x, extbuf_cnt:%d:\n",
3760 sta_tp, nemb_tp, ext_buf);
3763 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) {
3764 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) {
3765 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF;
3766 printk(KERN_ERR "\nRead mbox buffer (x%x), "
3767 "nemb:0x%x, extbuf_seq:%d:\n",
3768 sta_tp, nemb_tp, ext_buf);
3771 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) {
3772 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) {
3773 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX;
3774 printk(KERN_ERR "\nWrite mbox command (x%x), "
3775 "nemb:0x%x, extbuf_cnt:%d:\n",
3776 sta_tp, nemb_tp, ext_buf);
3779 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) {
3780 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) {
3781 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF;
3782 printk(KERN_ERR "\nWrite mbox buffer (x%x), "
3783 "nemb:0x%x, extbuf_seq:%d:\n",
3784 sta_tp, nemb_tp, ext_buf);
3788 /* dump buffer content */
3789 if (do_dump) {
3790 pword = (uint32_t *)dmabuf->virt;
3791 for (i = 0; i < *mbx_word_cnt; i++) {
3792 if (!(i % 8)) {
3793 if (i != 0)
3794 printk(KERN_ERR "%s\n", line_buf);
3795 len = 0;
3796 len += snprintf(line_buf+len,
3797 LPFC_MBX_ACC_LBUF_SZ-len,
3798 "%03d: ", i);
3800 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
3801 "%08x ", (uint32_t)*pword);
3802 pword++;
3804 if ((i - 1) % 8)
3805 printk(KERN_ERR "%s\n", line_buf);
3806 (*mbx_dump_cnt)--;
3809 /* Clean out command structure on reaching dump count */
3810 if (*mbx_dump_cnt == 0)
3811 memset(&idiag, 0, sizeof(idiag));
3812 return;
3813 #endif
3816 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
3817 * @phba: Pointer to HBA context object.
3818 * @dmabuf: Pointer to a DMA buffer descriptor.
3820 * Description:
3821 * This routine dump a pass-through non-embedded mailbox command from issue
3822 * mailbox command.
3824 void
3825 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
3827 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3828 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd;
3829 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
3830 int len = 0;
3831 uint32_t *pword;
3832 uint8_t *pbyte;
3833 uint32_t i, j;
3835 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP)
3836 return;
3838 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
3839 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
3840 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
3841 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
3843 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) ||
3844 (*mbx_dump_cnt == 0) ||
3845 (*mbx_word_cnt == 0))
3846 return;
3848 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) &&
3849 (*mbx_mbox_cmd != pmbox->mbxCommand))
3850 return;
3852 /* dump buffer content */
3853 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) {
3854 printk(KERN_ERR "Mailbox command:0x%x dump by word:\n",
3855 pmbox->mbxCommand);
3856 pword = (uint32_t *)pmbox;
3857 for (i = 0; i < *mbx_word_cnt; i++) {
3858 if (!(i % 8)) {
3859 if (i != 0)
3860 printk(KERN_ERR "%s\n", line_buf);
3861 len = 0;
3862 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
3863 len += snprintf(line_buf+len,
3864 LPFC_MBX_ACC_LBUF_SZ-len,
3865 "%03d: ", i);
3867 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
3868 "%08x ",
3869 ((uint32_t)*pword) & 0xffffffff);
3870 pword++;
3872 if ((i - 1) % 8)
3873 printk(KERN_ERR "%s\n", line_buf);
3874 printk(KERN_ERR "\n");
3876 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) {
3877 printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n",
3878 pmbox->mbxCommand);
3879 pbyte = (uint8_t *)pmbox;
3880 for (i = 0; i < *mbx_word_cnt; i++) {
3881 if (!(i % 8)) {
3882 if (i != 0)
3883 printk(KERN_ERR "%s\n", line_buf);
3884 len = 0;
3885 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
3886 len += snprintf(line_buf+len,
3887 LPFC_MBX_ACC_LBUF_SZ-len,
3888 "%03d: ", i);
3890 for (j = 0; j < 4; j++) {
3891 len += snprintf(line_buf+len,
3892 LPFC_MBX_ACC_LBUF_SZ-len,
3893 "%02x",
3894 ((uint8_t)*pbyte) & 0xff);
3895 pbyte++;
3897 len += snprintf(line_buf+len,
3898 LPFC_MBX_ACC_LBUF_SZ-len, " ");
3900 if ((i - 1) % 8)
3901 printk(KERN_ERR "%s\n", line_buf);
3902 printk(KERN_ERR "\n");
3904 (*mbx_dump_cnt)--;
3906 /* Clean out command structure on reaching dump count */
3907 if (*mbx_dump_cnt == 0)
3908 memset(&idiag, 0, sizeof(idiag));
3909 return;
3910 #endif
3914 * lpfc_debugfs_initialize - Initialize debugfs for a vport
3915 * @vport: The vport pointer to initialize.
3917 * Description:
3918 * When Debugfs is configured this routine sets up the lpfc debugfs file system.
3919 * If not already created, this routine will create the lpfc directory, and
3920 * lpfcX directory (for this HBA), and vportX directory for this vport. It will
3921 * also create each file used to access lpfc specific debugfs information.
3923 inline void
3924 lpfc_debugfs_initialize(struct lpfc_vport *vport)
3926 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
3927 struct lpfc_hba *phba = vport->phba;
3928 char name[64];
3929 uint32_t num, i;
3931 if (!lpfc_debugfs_enable)
3932 return;
3934 /* Setup lpfc root directory */
3935 if (!lpfc_debugfs_root) {
3936 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
3937 atomic_set(&lpfc_debugfs_hba_count, 0);
3938 if (!lpfc_debugfs_root) {
3939 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3940 "0408 Cannot create debugfs root\n");
3941 goto debug_failed;
3944 if (!lpfc_debugfs_start_time)
3945 lpfc_debugfs_start_time = jiffies;
3947 /* Setup funcX directory for specific HBA PCI function */
3948 snprintf(name, sizeof(name), "fn%d", phba->brd_no);
3949 if (!phba->hba_debugfs_root) {
3950 phba->hba_debugfs_root =
3951 debugfs_create_dir(name, lpfc_debugfs_root);
3952 if (!phba->hba_debugfs_root) {
3953 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3954 "0412 Cannot create debugfs hba\n");
3955 goto debug_failed;
3957 atomic_inc(&lpfc_debugfs_hba_count);
3958 atomic_set(&phba->debugfs_vport_count, 0);
3960 /* Setup hbqinfo */
3961 snprintf(name, sizeof(name), "hbqinfo");
3962 phba->debug_hbqinfo =
3963 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
3964 phba->hba_debugfs_root,
3965 phba, &lpfc_debugfs_op_hbqinfo);
3966 if (!phba->debug_hbqinfo) {
3967 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3968 "0411 Cannot create debugfs hbqinfo\n");
3969 goto debug_failed;
3972 /* Setup dumpHBASlim */
3973 if (phba->sli_rev < LPFC_SLI_REV4) {
3974 snprintf(name, sizeof(name), "dumpHBASlim");
3975 phba->debug_dumpHBASlim =
3976 debugfs_create_file(name,
3977 S_IFREG|S_IRUGO|S_IWUSR,
3978 phba->hba_debugfs_root,
3979 phba, &lpfc_debugfs_op_dumpHBASlim);
3980 if (!phba->debug_dumpHBASlim) {
3981 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3982 "0413 Cannot create debugfs "
3983 "dumpHBASlim\n");
3984 goto debug_failed;
3986 } else
3987 phba->debug_dumpHBASlim = NULL;
3989 /* Setup dumpHostSlim */
3990 if (phba->sli_rev < LPFC_SLI_REV4) {
3991 snprintf(name, sizeof(name), "dumpHostSlim");
3992 phba->debug_dumpHostSlim =
3993 debugfs_create_file(name,
3994 S_IFREG|S_IRUGO|S_IWUSR,
3995 phba->hba_debugfs_root,
3996 phba, &lpfc_debugfs_op_dumpHostSlim);
3997 if (!phba->debug_dumpHostSlim) {
3998 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
3999 "0414 Cannot create debugfs "
4000 "dumpHostSlim\n");
4001 goto debug_failed;
4003 } else
4004 phba->debug_dumpHBASlim = NULL;
4006 /* Setup dumpData */
4007 snprintf(name, sizeof(name), "dumpData");
4008 phba->debug_dumpData =
4009 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4010 phba->hba_debugfs_root,
4011 phba, &lpfc_debugfs_op_dumpData);
4012 if (!phba->debug_dumpData) {
4013 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4014 "0800 Cannot create debugfs dumpData\n");
4015 goto debug_failed;
4018 /* Setup dumpDif */
4019 snprintf(name, sizeof(name), "dumpDif");
4020 phba->debug_dumpDif =
4021 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4022 phba->hba_debugfs_root,
4023 phba, &lpfc_debugfs_op_dumpDif);
4024 if (!phba->debug_dumpDif) {
4025 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4026 "0801 Cannot create debugfs dumpDif\n");
4027 goto debug_failed;
4030 /* Setup DIF Error Injections */
4031 snprintf(name, sizeof(name), "InjErrLBA");
4032 phba->debug_InjErrLBA =
4033 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4034 phba->hba_debugfs_root,
4035 phba, &lpfc_debugfs_op_dif_err);
4036 if (!phba->debug_InjErrLBA) {
4037 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4038 "0807 Cannot create debugfs InjErrLBA\n");
4039 goto debug_failed;
4041 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
4043 snprintf(name, sizeof(name), "InjErrNPortID");
4044 phba->debug_InjErrNPortID =
4045 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4046 phba->hba_debugfs_root,
4047 phba, &lpfc_debugfs_op_dif_err);
4048 if (!phba->debug_InjErrNPortID) {
4049 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4050 "0809 Cannot create debugfs InjErrNPortID\n");
4051 goto debug_failed;
4054 snprintf(name, sizeof(name), "InjErrWWPN");
4055 phba->debug_InjErrWWPN =
4056 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4057 phba->hba_debugfs_root,
4058 phba, &lpfc_debugfs_op_dif_err);
4059 if (!phba->debug_InjErrWWPN) {
4060 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4061 "0810 Cannot create debugfs InjErrWWPN\n");
4062 goto debug_failed;
4065 snprintf(name, sizeof(name), "writeGuardInjErr");
4066 phba->debug_writeGuard =
4067 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4068 phba->hba_debugfs_root,
4069 phba, &lpfc_debugfs_op_dif_err);
4070 if (!phba->debug_writeGuard) {
4071 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4072 "0802 Cannot create debugfs writeGuard\n");
4073 goto debug_failed;
4076 snprintf(name, sizeof(name), "writeAppInjErr");
4077 phba->debug_writeApp =
4078 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4079 phba->hba_debugfs_root,
4080 phba, &lpfc_debugfs_op_dif_err);
4081 if (!phba->debug_writeApp) {
4082 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4083 "0803 Cannot create debugfs writeApp\n");
4084 goto debug_failed;
4087 snprintf(name, sizeof(name), "writeRefInjErr");
4088 phba->debug_writeRef =
4089 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4090 phba->hba_debugfs_root,
4091 phba, &lpfc_debugfs_op_dif_err);
4092 if (!phba->debug_writeRef) {
4093 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4094 "0804 Cannot create debugfs writeRef\n");
4095 goto debug_failed;
4098 snprintf(name, sizeof(name), "readGuardInjErr");
4099 phba->debug_readGuard =
4100 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4101 phba->hba_debugfs_root,
4102 phba, &lpfc_debugfs_op_dif_err);
4103 if (!phba->debug_readGuard) {
4104 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4105 "0808 Cannot create debugfs readGuard\n");
4106 goto debug_failed;
4109 snprintf(name, sizeof(name), "readAppInjErr");
4110 phba->debug_readApp =
4111 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4112 phba->hba_debugfs_root,
4113 phba, &lpfc_debugfs_op_dif_err);
4114 if (!phba->debug_readApp) {
4115 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4116 "0805 Cannot create debugfs readApp\n");
4117 goto debug_failed;
4120 snprintf(name, sizeof(name), "readRefInjErr");
4121 phba->debug_readRef =
4122 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4123 phba->hba_debugfs_root,
4124 phba, &lpfc_debugfs_op_dif_err);
4125 if (!phba->debug_readRef) {
4126 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4127 "0806 Cannot create debugfs readApp\n");
4128 goto debug_failed;
4131 /* Setup slow ring trace */
4132 if (lpfc_debugfs_max_slow_ring_trc) {
4133 num = lpfc_debugfs_max_slow_ring_trc - 1;
4134 if (num & lpfc_debugfs_max_slow_ring_trc) {
4135 /* Change to be a power of 2 */
4136 num = lpfc_debugfs_max_slow_ring_trc;
4137 i = 0;
4138 while (num > 1) {
4139 num = num >> 1;
4140 i++;
4142 lpfc_debugfs_max_slow_ring_trc = (1 << i);
4143 printk(KERN_ERR
4144 "lpfc_debugfs_max_disc_trc changed to "
4145 "%d\n", lpfc_debugfs_max_disc_trc);
4149 snprintf(name, sizeof(name), "slow_ring_trace");
4150 phba->debug_slow_ring_trc =
4151 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4152 phba->hba_debugfs_root,
4153 phba, &lpfc_debugfs_op_slow_ring_trc);
4154 if (!phba->debug_slow_ring_trc) {
4155 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4156 "0415 Cannot create debugfs "
4157 "slow_ring_trace\n");
4158 goto debug_failed;
4160 if (!phba->slow_ring_trc) {
4161 phba->slow_ring_trc = kmalloc(
4162 (sizeof(struct lpfc_debugfs_trc) *
4163 lpfc_debugfs_max_slow_ring_trc),
4164 GFP_KERNEL);
4165 if (!phba->slow_ring_trc) {
4166 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4167 "0416 Cannot create debugfs "
4168 "slow_ring buffer\n");
4169 goto debug_failed;
4171 atomic_set(&phba->slow_ring_trc_cnt, 0);
4172 memset(phba->slow_ring_trc, 0,
4173 (sizeof(struct lpfc_debugfs_trc) *
4174 lpfc_debugfs_max_slow_ring_trc));
4178 snprintf(name, sizeof(name), "vport%d", vport->vpi);
4179 if (!vport->vport_debugfs_root) {
4180 vport->vport_debugfs_root =
4181 debugfs_create_dir(name, phba->hba_debugfs_root);
4182 if (!vport->vport_debugfs_root) {
4183 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4184 "0417 Can't create debugfs\n");
4185 goto debug_failed;
4187 atomic_inc(&phba->debugfs_vport_count);
4190 if (lpfc_debugfs_max_disc_trc) {
4191 num = lpfc_debugfs_max_disc_trc - 1;
4192 if (num & lpfc_debugfs_max_disc_trc) {
4193 /* Change to be a power of 2 */
4194 num = lpfc_debugfs_max_disc_trc;
4195 i = 0;
4196 while (num > 1) {
4197 num = num >> 1;
4198 i++;
4200 lpfc_debugfs_max_disc_trc = (1 << i);
4201 printk(KERN_ERR
4202 "lpfc_debugfs_max_disc_trc changed to %d\n",
4203 lpfc_debugfs_max_disc_trc);
4207 vport->disc_trc = kzalloc(
4208 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
4209 GFP_KERNEL);
4211 if (!vport->disc_trc) {
4212 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4213 "0418 Cannot create debugfs disc trace "
4214 "buffer\n");
4215 goto debug_failed;
4217 atomic_set(&vport->disc_trc_cnt, 0);
4219 snprintf(name, sizeof(name), "discovery_trace");
4220 vport->debug_disc_trc =
4221 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4222 vport->vport_debugfs_root,
4223 vport, &lpfc_debugfs_op_disc_trc);
4224 if (!vport->debug_disc_trc) {
4225 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4226 "0419 Cannot create debugfs "
4227 "discovery_trace\n");
4228 goto debug_failed;
4230 snprintf(name, sizeof(name), "nodelist");
4231 vport->debug_nodelist =
4232 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4233 vport->vport_debugfs_root,
4234 vport, &lpfc_debugfs_op_nodelist);
4235 if (!vport->debug_nodelist) {
4236 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4237 "2985 Can't create debugfs nodelist\n");
4238 goto debug_failed;
4242 * iDiag debugfs root entry points for SLI4 device only
4244 if (phba->sli_rev < LPFC_SLI_REV4)
4245 goto debug_failed;
4247 snprintf(name, sizeof(name), "iDiag");
4248 if (!phba->idiag_root) {
4249 phba->idiag_root =
4250 debugfs_create_dir(name, phba->hba_debugfs_root);
4251 if (!phba->idiag_root) {
4252 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4253 "2922 Can't create idiag debugfs\n");
4254 goto debug_failed;
4256 /* Initialize iDiag data structure */
4257 memset(&idiag, 0, sizeof(idiag));
4260 /* iDiag read PCI config space */
4261 snprintf(name, sizeof(name), "pciCfg");
4262 if (!phba->idiag_pci_cfg) {
4263 phba->idiag_pci_cfg =
4264 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4265 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
4266 if (!phba->idiag_pci_cfg) {
4267 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4268 "2923 Can't create idiag debugfs\n");
4269 goto debug_failed;
4271 idiag.offset.last_rd = 0;
4274 /* iDiag PCI BAR access */
4275 snprintf(name, sizeof(name), "barAcc");
4276 if (!phba->idiag_bar_acc) {
4277 phba->idiag_bar_acc =
4278 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4279 phba->idiag_root, phba, &lpfc_idiag_op_barAcc);
4280 if (!phba->idiag_bar_acc) {
4281 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4282 "3056 Can't create idiag debugfs\n");
4283 goto debug_failed;
4285 idiag.offset.last_rd = 0;
4288 /* iDiag get PCI function queue information */
4289 snprintf(name, sizeof(name), "queInfo");
4290 if (!phba->idiag_que_info) {
4291 phba->idiag_que_info =
4292 debugfs_create_file(name, S_IFREG|S_IRUGO,
4293 phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
4294 if (!phba->idiag_que_info) {
4295 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4296 "2924 Can't create idiag debugfs\n");
4297 goto debug_failed;
4301 /* iDiag access PCI function queue */
4302 snprintf(name, sizeof(name), "queAcc");
4303 if (!phba->idiag_que_acc) {
4304 phba->idiag_que_acc =
4305 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4306 phba->idiag_root, phba, &lpfc_idiag_op_queAcc);
4307 if (!phba->idiag_que_acc) {
4308 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4309 "2926 Can't create idiag debugfs\n");
4310 goto debug_failed;
4314 /* iDiag access PCI function doorbell registers */
4315 snprintf(name, sizeof(name), "drbAcc");
4316 if (!phba->idiag_drb_acc) {
4317 phba->idiag_drb_acc =
4318 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4319 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc);
4320 if (!phba->idiag_drb_acc) {
4321 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4322 "2927 Can't create idiag debugfs\n");
4323 goto debug_failed;
4327 /* iDiag access PCI function control registers */
4328 snprintf(name, sizeof(name), "ctlAcc");
4329 if (!phba->idiag_ctl_acc) {
4330 phba->idiag_ctl_acc =
4331 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4332 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc);
4333 if (!phba->idiag_ctl_acc) {
4334 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4335 "2981 Can't create idiag debugfs\n");
4336 goto debug_failed;
4340 /* iDiag access mbox commands */
4341 snprintf(name, sizeof(name), "mbxAcc");
4342 if (!phba->idiag_mbx_acc) {
4343 phba->idiag_mbx_acc =
4344 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
4345 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc);
4346 if (!phba->idiag_mbx_acc) {
4347 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4348 "2980 Can't create idiag debugfs\n");
4349 goto debug_failed;
4353 /* iDiag extents access commands */
4354 if (phba->sli4_hba.extents_in_use) {
4355 snprintf(name, sizeof(name), "extAcc");
4356 if (!phba->idiag_ext_acc) {
4357 phba->idiag_ext_acc =
4358 debugfs_create_file(name,
4359 S_IFREG|S_IRUGO|S_IWUSR,
4360 phba->idiag_root, phba,
4361 &lpfc_idiag_op_extAcc);
4362 if (!phba->idiag_ext_acc) {
4363 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
4364 "2986 Cant create "
4365 "idiag debugfs\n");
4366 goto debug_failed;
4371 debug_failed:
4372 return;
4373 #endif
4377 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
4378 * @vport: The vport pointer to remove from debugfs.
4380 * Description:
4381 * When Debugfs is configured this routine removes debugfs file system elements
4382 * that are specific to this vport. It also checks to see if there are any
4383 * users left for the debugfs directories associated with the HBA and driver. If
4384 * this is the last user of the HBA directory or driver directory then it will
4385 * remove those from the debugfs infrastructure as well.
4387 inline void
4388 lpfc_debugfs_terminate(struct lpfc_vport *vport)
4390 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
4391 struct lpfc_hba *phba = vport->phba;
4393 if (vport->disc_trc) {
4394 kfree(vport->disc_trc);
4395 vport->disc_trc = NULL;
4397 if (vport->debug_disc_trc) {
4398 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
4399 vport->debug_disc_trc = NULL;
4401 if (vport->debug_nodelist) {
4402 debugfs_remove(vport->debug_nodelist); /* nodelist */
4403 vport->debug_nodelist = NULL;
4405 if (vport->vport_debugfs_root) {
4406 debugfs_remove(vport->vport_debugfs_root); /* vportX */
4407 vport->vport_debugfs_root = NULL;
4408 atomic_dec(&phba->debugfs_vport_count);
4410 if (atomic_read(&phba->debugfs_vport_count) == 0) {
4412 if (phba->debug_hbqinfo) {
4413 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
4414 phba->debug_hbqinfo = NULL;
4416 if (phba->debug_dumpHBASlim) {
4417 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
4418 phba->debug_dumpHBASlim = NULL;
4420 if (phba->debug_dumpHostSlim) {
4421 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
4422 phba->debug_dumpHostSlim = NULL;
4424 if (phba->debug_dumpData) {
4425 debugfs_remove(phba->debug_dumpData); /* dumpData */
4426 phba->debug_dumpData = NULL;
4429 if (phba->debug_dumpDif) {
4430 debugfs_remove(phba->debug_dumpDif); /* dumpDif */
4431 phba->debug_dumpDif = NULL;
4433 if (phba->debug_InjErrLBA) {
4434 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
4435 phba->debug_InjErrLBA = NULL;
4437 if (phba->debug_InjErrNPortID) { /* InjErrNPortID */
4438 debugfs_remove(phba->debug_InjErrNPortID);
4439 phba->debug_InjErrNPortID = NULL;
4441 if (phba->debug_InjErrWWPN) {
4442 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */
4443 phba->debug_InjErrWWPN = NULL;
4445 if (phba->debug_writeGuard) {
4446 debugfs_remove(phba->debug_writeGuard); /* writeGuard */
4447 phba->debug_writeGuard = NULL;
4449 if (phba->debug_writeApp) {
4450 debugfs_remove(phba->debug_writeApp); /* writeApp */
4451 phba->debug_writeApp = NULL;
4453 if (phba->debug_writeRef) {
4454 debugfs_remove(phba->debug_writeRef); /* writeRef */
4455 phba->debug_writeRef = NULL;
4457 if (phba->debug_readGuard) {
4458 debugfs_remove(phba->debug_readGuard); /* readGuard */
4459 phba->debug_readGuard = NULL;
4461 if (phba->debug_readApp) {
4462 debugfs_remove(phba->debug_readApp); /* readApp */
4463 phba->debug_readApp = NULL;
4465 if (phba->debug_readRef) {
4466 debugfs_remove(phba->debug_readRef); /* readRef */
4467 phba->debug_readRef = NULL;
4470 if (phba->slow_ring_trc) {
4471 kfree(phba->slow_ring_trc);
4472 phba->slow_ring_trc = NULL;
4474 if (phba->debug_slow_ring_trc) {
4475 /* slow_ring_trace */
4476 debugfs_remove(phba->debug_slow_ring_trc);
4477 phba->debug_slow_ring_trc = NULL;
4481 * iDiag release
4483 if (phba->sli_rev == LPFC_SLI_REV4) {
4484 if (phba->idiag_ext_acc) {
4485 /* iDiag extAcc */
4486 debugfs_remove(phba->idiag_ext_acc);
4487 phba->idiag_ext_acc = NULL;
4489 if (phba->idiag_mbx_acc) {
4490 /* iDiag mbxAcc */
4491 debugfs_remove(phba->idiag_mbx_acc);
4492 phba->idiag_mbx_acc = NULL;
4494 if (phba->idiag_ctl_acc) {
4495 /* iDiag ctlAcc */
4496 debugfs_remove(phba->idiag_ctl_acc);
4497 phba->idiag_ctl_acc = NULL;
4499 if (phba->idiag_drb_acc) {
4500 /* iDiag drbAcc */
4501 debugfs_remove(phba->idiag_drb_acc);
4502 phba->idiag_drb_acc = NULL;
4504 if (phba->idiag_que_acc) {
4505 /* iDiag queAcc */
4506 debugfs_remove(phba->idiag_que_acc);
4507 phba->idiag_que_acc = NULL;
4509 if (phba->idiag_que_info) {
4510 /* iDiag queInfo */
4511 debugfs_remove(phba->idiag_que_info);
4512 phba->idiag_que_info = NULL;
4514 if (phba->idiag_bar_acc) {
4515 /* iDiag barAcc */
4516 debugfs_remove(phba->idiag_bar_acc);
4517 phba->idiag_bar_acc = NULL;
4519 if (phba->idiag_pci_cfg) {
4520 /* iDiag pciCfg */
4521 debugfs_remove(phba->idiag_pci_cfg);
4522 phba->idiag_pci_cfg = NULL;
4525 /* Finally remove the iDiag debugfs root */
4526 if (phba->idiag_root) {
4527 /* iDiag root */
4528 debugfs_remove(phba->idiag_root);
4529 phba->idiag_root = NULL;
4533 if (phba->hba_debugfs_root) {
4534 debugfs_remove(phba->hba_debugfs_root); /* fnX */
4535 phba->hba_debugfs_root = NULL;
4536 atomic_dec(&lpfc_debugfs_hba_count);
4539 if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
4540 debugfs_remove(lpfc_debugfs_root); /* lpfc */
4541 lpfc_debugfs_root = NULL;
4544 #endif
4545 return;
4549 * Driver debug utility routines outside of debugfs. The debug utility
4550 * routines implemented here is intended to be used in the instrumented
4551 * debug driver for debugging host or port issues.
4555 * lpfc_debug_dump_all_queues - dump all the queues with a hba
4556 * @phba: Pointer to HBA context object.
4558 * This function dumps entries of all the queues asociated with the @phba.
4560 void
4561 lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
4563 int fcp_wqidx;
4566 * Dump Work Queues (WQs)
4568 lpfc_debug_dump_mbx_wq(phba);
4569 lpfc_debug_dump_els_wq(phba);
4571 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
4572 lpfc_debug_dump_fcp_wq(phba, fcp_wqidx);
4574 lpfc_debug_dump_hdr_rq(phba);
4575 lpfc_debug_dump_dat_rq(phba);
4577 * Dump Complete Queues (CQs)
4579 lpfc_debug_dump_mbx_cq(phba);
4580 lpfc_debug_dump_els_cq(phba);
4582 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
4583 lpfc_debug_dump_fcp_cq(phba, fcp_wqidx);
4586 * Dump Event Queues (EQs)
4588 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++)
4589 lpfc_debug_dump_hba_eq(phba, fcp_wqidx);