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Linux 4.16.11
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_debugfs.c
blob17ea3bb04266bdf098e0f615a48410df90452a00
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
6 * Copyright (C) 2007-2015 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
8 * www.broadcom.com *
9 * *
10 * This program is free software; you can redistribute it and/or *
11 * modify it under the terms of version 2 of the GNU General *
12 * Public License as published by the Free Software Foundation. *
13 * This program is distributed in the hope that it will be useful. *
14 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
15 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
16 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
17 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
18 * TO BE LEGALLY INVALID. See the GNU General Public License for *
19 * more details, a copy of which can be found in the file COPYING *
20 * included with this package. *
21 *******************************************************************/
22
23 #include <linux/blkdev.h>
24 #include <linux/delay.h>
25 #include <linux/module.h>
26 #include <linux/dma-mapping.h>
27 #include <linux/idr.h>
28 #include <linux/interrupt.h>
29 #include <linux/kthread.h>
30 #include <linux/slab.h>
31 #include <linux/pci.h>
32 #include <linux/spinlock.h>
33 #include <linux/ctype.h>
34
35 #include <scsi/scsi.h>
36 #include <scsi/scsi_device.h>
37 #include <scsi/scsi_host.h>
38 #include <scsi/scsi_transport_fc.h>
39 #include <scsi/fc/fc_fs.h>
40
41 #include <linux/nvme-fc-driver.h>
42
43 #include "lpfc_hw4.h"
44 #include "lpfc_hw.h"
45 #include "lpfc_sli.h"
46 #include "lpfc_sli4.h"
47 #include "lpfc_nl.h"
48 #include "lpfc_disc.h"
49 #include "lpfc.h"
50 #include "lpfc_scsi.h"
51 #include "lpfc_nvme.h"
52 #include "lpfc_nvmet.h"
53 #include "lpfc_logmsg.h"
54 #include "lpfc_crtn.h"
55 #include "lpfc_vport.h"
56 #include "lpfc_version.h"
57 #include "lpfc_compat.h"
58 #include "lpfc_debugfs.h"
59 #include "lpfc_bsg.h"
60
61 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
62 /*
63 * debugfs interface
64 *
65 * To access this interface the user should:
66 * # mount -t debugfs none /sys/kernel/debug
67 *
68 * The lpfc debugfs directory hierarchy is:
69 * /sys/kernel/debug/lpfc/fnX/vportY
70 * where X is the lpfc hba function unique_id
71 * where Y is the vport VPI on that hba
72 *
73 * Debugging services available per vport:
74 * discovery_trace
75 * This is an ACSII readable file that contains a trace of the last
76 * lpfc_debugfs_max_disc_trc events that happened on a specific vport.
77 * See lpfc_debugfs.h for different categories of discovery events.
78 * To enable the discovery trace, the following module parameters must be set:
79 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
80 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for
81 * EACH vport. X MUST also be a power of 2.
82 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in
83 * lpfc_debugfs.h .
84 *
85 * slow_ring_trace
86 * This is an ACSII readable file that contains a trace of the last
87 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA.
88 * To enable the slow ring trace, the following module parameters must be set:
89 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
90 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for
91 * the HBA. X MUST also be a power of 2.
92 */
93 static int lpfc_debugfs_enable = 1;
94 module_param(lpfc_debugfs_enable, int, S_IRUGO);
95 MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services");
96
97 /* This MUST be a power of 2 */
98 static int lpfc_debugfs_max_disc_trc;
99 module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO);
100 MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc,
101 "Set debugfs discovery trace depth");
102
103 /* This MUST be a power of 2 */
104 static int lpfc_debugfs_max_slow_ring_trc;
105 module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO);
106 MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc,
107 "Set debugfs slow ring trace depth");
108
109 /* This MUST be a power of 2 */
110 static int lpfc_debugfs_max_nvmeio_trc;
111 module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444);
112 MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc,
113 "Set debugfs NVME IO trace depth");
114
115 static int lpfc_debugfs_mask_disc_trc;
116 module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO);
117 MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
118 "Set debugfs discovery trace mask");
119
120 #include <linux/debugfs.h>
121
122 static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
123 static unsigned long lpfc_debugfs_start_time = 0L;
124
125 /* iDiag */
126 static struct lpfc_idiag idiag;
127
128 /**
129 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer
130 * @vport: The vport to gather the log info from.
131 * @buf: The buffer to dump log into.
132 * @size: The maximum amount of data to process.
133 *
134 * Description:
135 * This routine gathers the lpfc discovery debugfs data from the @vport and
136 * dumps it to @buf up to @size number of bytes. It will start at the next entry
137 * in the log and process the log until the end of the buffer. Then it will
138 * gather from the beginning of the log and process until the current entry.
139 *
140 * Notes:
141 * Discovery logging will be disabled while while this routine dumps the log.
142 *
143 * Return Value:
144 * This routine returns the amount of bytes that were dumped into @buf and will
145 * not exceed @size.
146 **/
147 static int
148 lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
149 {
150 int i, index, len, enable;
151 uint32_t ms;
152 struct lpfc_debugfs_trc *dtp;
153 char *buffer;
154
155 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
156 if (!buffer)
157 return 0;
158
159 enable = lpfc_debugfs_enable;
160 lpfc_debugfs_enable = 0;
161
162 len = 0;
163 index = (atomic_read(&vport->disc_trc_cnt) + 1) &
164 (lpfc_debugfs_max_disc_trc - 1);
165 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
166 dtp = vport->disc_trc + i;
167 if (!dtp->fmt)
168 continue;
169 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
170 snprintf(buffer,
171 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
172 dtp->seq_cnt, ms, dtp->fmt);
173 len += snprintf(buf+len, size-len, buffer,
174 dtp->data1, dtp->data2, dtp->data3);
175 }
176 for (i = 0; i < index; i++) {
177 dtp = vport->disc_trc + i;
178 if (!dtp->fmt)
179 continue;
180 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
181 snprintf(buffer,
182 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
183 dtp->seq_cnt, ms, dtp->fmt);
184 len += snprintf(buf+len, size-len, buffer,
185 dtp->data1, dtp->data2, dtp->data3);
186 }
187
188 lpfc_debugfs_enable = enable;
189 kfree(buffer);
190
191 return len;
192 }
193
194 /**
195 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer
196 * @phba: The HBA to gather the log info from.
197 * @buf: The buffer to dump log into.
198 * @size: The maximum amount of data to process.
199 *
200 * Description:
201 * This routine gathers the lpfc slow ring debugfs data from the @phba and
202 * dumps it to @buf up to @size number of bytes. It will start at the next entry
203 * in the log and process the log until the end of the buffer. Then it will
204 * gather from the beginning of the log and process until the current entry.
205 *
206 * Notes:
207 * Slow ring logging will be disabled while while this routine dumps the log.
208 *
209 * Return Value:
210 * This routine returns the amount of bytes that were dumped into @buf and will
211 * not exceed @size.
212 **/
213 static int
214 lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
215 {
216 int i, index, len, enable;
217 uint32_t ms;
218 struct lpfc_debugfs_trc *dtp;
219 char *buffer;
220
221 buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
222 if (!buffer)
223 return 0;
224
225 enable = lpfc_debugfs_enable;
226 lpfc_debugfs_enable = 0;
227
228 len = 0;
229 index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
230 (lpfc_debugfs_max_slow_ring_trc - 1);
231 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
232 dtp = phba->slow_ring_trc + i;
233 if (!dtp->fmt)
234 continue;
235 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
236 snprintf(buffer,
237 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
238 dtp->seq_cnt, ms, dtp->fmt);
239 len += snprintf(buf+len, size-len, buffer,
240 dtp->data1, dtp->data2, dtp->data3);
241 }
242 for (i = 0; i < index; i++) {
243 dtp = phba->slow_ring_trc + i;
244 if (!dtp->fmt)
245 continue;
246 ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
247 snprintf(buffer,
248 LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
249 dtp->seq_cnt, ms, dtp->fmt);
250 len += snprintf(buf+len, size-len, buffer,
251 dtp->data1, dtp->data2, dtp->data3);
252 }
253
254 lpfc_debugfs_enable = enable;
255 kfree(buffer);
256
257 return len;
258 }
259
260 static int lpfc_debugfs_last_hbq = -1;
261
262 /**
263 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer
264 * @phba: The HBA to gather host buffer info from.
265 * @buf: The buffer to dump log into.
266 * @size: The maximum amount of data to process.
267 *
268 * Description:
269 * This routine dumps the host buffer queue info from the @phba to @buf up to
270 * @size number of bytes. A header that describes the current hbq state will be
271 * dumped to @buf first and then info on each hbq entry will be dumped to @buf
272 * until @size bytes have been dumped or all the hbq info has been dumped.
273 *
274 * Notes:
275 * This routine will rotate through each configured HBQ each time called.
276 *
277 * Return Value:
278 * This routine returns the amount of bytes that were dumped into @buf and will
279 * not exceed @size.
280 **/
281 static int
282 lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
283 {
284 int len = 0;
285 int i, j, found, posted, low;
286 uint32_t phys, raw_index, getidx;
287 struct lpfc_hbq_init *hip;
288 struct hbq_s *hbqs;
289 struct lpfc_hbq_entry *hbqe;
290 struct lpfc_dmabuf *d_buf;
291 struct hbq_dmabuf *hbq_buf;
292
293 if (phba->sli_rev != 3)
294 return 0;
295
296 spin_lock_irq(&phba->hbalock);
297
298 /* toggle between multiple hbqs, if any */
299 i = lpfc_sli_hbq_count();
300 if (i > 1) {
301 lpfc_debugfs_last_hbq++;
302 if (lpfc_debugfs_last_hbq >= i)
303 lpfc_debugfs_last_hbq = 0;
304 }
305 else
306 lpfc_debugfs_last_hbq = 0;
307
308 i = lpfc_debugfs_last_hbq;
309
310 len += snprintf(buf+len, size-len, "HBQ %d Info\n", i);
311
312 hbqs = &phba->hbqs[i];
313 posted = 0;
314 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list)
315 posted++;
316
317 hip = lpfc_hbq_defs[i];
318 len += snprintf(buf+len, size-len,
319 "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
320 hip->hbq_index, hip->profile, hip->rn,
321 hip->buffer_count, hip->init_count, hip->add_count, posted);
322
323 raw_index = phba->hbq_get[i];
324 getidx = le32_to_cpu(raw_index);
325 len += snprintf(buf+len, size-len,
326 "entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
327 hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx,
328 hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx);
329
330 hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
331 for (j=0; j<hbqs->entry_count; j++) {
332 len += snprintf(buf+len, size-len,
333 "%03d: %08x %04x %05x ", j,
334 le32_to_cpu(hbqe->bde.addrLow),
335 le32_to_cpu(hbqe->bde.tus.w),
336 le32_to_cpu(hbqe->buffer_tag));
337 i = 0;
338 found = 0;
339
340 /* First calculate if slot has an associated posted buffer */
341 low = hbqs->hbqPutIdx - posted;
342 if (low >= 0) {
343 if ((j >= hbqs->hbqPutIdx) || (j < low)) {
344 len += snprintf(buf+len, size-len, "Unused\n");
345 goto skipit;
346 }
347 }
348 else {
349 if ((j >= hbqs->hbqPutIdx) &&
350 (j < (hbqs->entry_count+low))) {
351 len += snprintf(buf+len, size-len, "Unused\n");
352 goto skipit;
353 }
354 }
355
356 /* Get the Buffer info for the posted buffer */
357 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) {
358 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
359 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
360 if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
361 len += snprintf(buf+len, size-len,
362 "Buf%d: %p %06x\n", i,
363 hbq_buf->dbuf.virt, hbq_buf->tag);
364 found = 1;
365 break;
366 }
367 i++;
368 }
369 if (!found) {
370 len += snprintf(buf+len, size-len, "No DMAinfo?\n");
371 }
372 skipit:
373 hbqe++;
374 if (len > LPFC_HBQINFO_SIZE - 54)
375 break;
376 }
377 spin_unlock_irq(&phba->hbalock);
378 return len;
379 }
380
381 static int lpfc_debugfs_last_hba_slim_off;
382
383 /**
384 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer
385 * @phba: The HBA to gather SLIM info from.
386 * @buf: The buffer to dump log into.
387 * @size: The maximum amount of data to process.
388 *
389 * Description:
390 * This routine dumps the current contents of HBA SLIM for the HBA associated
391 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data.
392 *
393 * Notes:
394 * This routine will only dump up to 1024 bytes of data each time called and
395 * should be called multiple times to dump the entire HBA SLIM.
396 *
397 * Return Value:
398 * This routine returns the amount of bytes that were dumped into @buf and will
399 * not exceed @size.
400 **/
401 static int
402 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
403 {
404 int len = 0;
405 int i, off;
406 uint32_t *ptr;
407 char *buffer;
408
409 buffer = kmalloc(1024, GFP_KERNEL);
410 if (!buffer)
411 return 0;
412
413 off = 0;
414 spin_lock_irq(&phba->hbalock);
415
416 len += snprintf(buf+len, size-len, "HBA SLIM\n");
417 lpfc_memcpy_from_slim(buffer,
418 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
419
420 ptr = (uint32_t *)&buffer[0];
421 off = lpfc_debugfs_last_hba_slim_off;
422
423 /* Set it up for the next time */
424 lpfc_debugfs_last_hba_slim_off += 1024;
425 if (lpfc_debugfs_last_hba_slim_off >= 4096)
426 lpfc_debugfs_last_hba_slim_off = 0;
427
428 i = 1024;
429 while (i > 0) {
430 len += snprintf(buf+len, size-len,
431 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
432 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
433 *(ptr+5), *(ptr+6), *(ptr+7));
434 ptr += 8;
435 i -= (8 * sizeof(uint32_t));
436 off += (8 * sizeof(uint32_t));
437 }
438
439 spin_unlock_irq(&phba->hbalock);
440 kfree(buffer);
441
442 return len;
443 }
444
445 /**
446 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer
447 * @phba: The HBA to gather Host SLIM info from.
448 * @buf: The buffer to dump log into.
449 * @size: The maximum amount of data to process.
450 *
451 * Description:
452 * This routine dumps the current contents of host SLIM for the host associated
453 * with @phba to @buf up to @size bytes of data. The dump will contain the
454 * Mailbox, PCB, Rings, and Registers that are located in host memory.
455 *
456 * Return Value:
457 * This routine returns the amount of bytes that were dumped into @buf and will
458 * not exceed @size.
459 **/
460 static int
461 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
462 {
463 int len = 0;
464 int i, off;
465 uint32_t word0, word1, word2, word3;
466 uint32_t *ptr;
467 struct lpfc_pgp *pgpp;
468 struct lpfc_sli *psli = &phba->sli;
469 struct lpfc_sli_ring *pring;
470
471 off = 0;
472 spin_lock_irq(&phba->hbalock);
473
474 len += snprintf(buf+len, size-len, "SLIM Mailbox\n");
475 ptr = (uint32_t *)phba->slim2p.virt;
476 i = sizeof(MAILBOX_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));
485 }
486
487 len += snprintf(buf+len, size-len, "SLIM PCB\n");
488 ptr = (uint32_t *)phba->pcb;
489 i = sizeof(PCB_t);
490 while (i > 0) {
491 len += snprintf(buf+len, size-len,
492 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
493 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
494 *(ptr+5), *(ptr+6), *(ptr+7));
495 ptr += 8;
496 i -= (8 * sizeof(uint32_t));
497 off += (8 * sizeof(uint32_t));
498 }
499
500 if (phba->sli_rev <= LPFC_SLI_REV3) {
501 for (i = 0; i < 4; i++) {
502 pgpp = &phba->port_gp[i];
503 pring = &psli->sli3_ring[i];
504 len += snprintf(buf+len, size-len,
505 "Ring %d: CMD GetInx:%d "
506 "(Max:%d Next:%d "
507 "Local:%d flg:x%x) "
508 "RSP PutInx:%d Max:%d\n",
509 i, pgpp->cmdGetInx,
510 pring->sli.sli3.numCiocb,
511 pring->sli.sli3.next_cmdidx,
512 pring->sli.sli3.local_getidx,
513 pring->flag, pgpp->rspPutInx,
514 pring->sli.sli3.numRiocb);
515 }
516
517 word0 = readl(phba->HAregaddr);
518 word1 = readl(phba->CAregaddr);
519 word2 = readl(phba->HSregaddr);
520 word3 = readl(phba->HCregaddr);
521 len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
522 "HC:%08x\n", word0, word1, word2, word3);
523 }
524 spin_unlock_irq(&phba->hbalock);
525 return len;
526 }
527
528 /**
529 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer
530 * @vport: The vport to gather target node info from.
531 * @buf: The buffer to dump log into.
532 * @size: The maximum amount of data to process.
533 *
534 * Description:
535 * This routine dumps the current target node list associated with @vport to
536 * @buf up to @size bytes of data. Each node entry in the dump will contain a
537 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
538 *
539 * Return Value:
540 * This routine returns the amount of bytes that were dumped into @buf and will
541 * not exceed @size.
542 **/
543 static int
544 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
545 {
546 int len = 0;
547 int cnt;
548 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
549 struct lpfc_hba *phba = vport->phba;
550 struct lpfc_nodelist *ndlp;
551 unsigned char *statep;
552 struct nvme_fc_local_port *localport;
553 struct lpfc_nvmet_tgtport *tgtp;
554 struct nvme_fc_remote_port *nrport;
555
556 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
557
558 len += snprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n");
559 spin_lock_irq(shost->host_lock);
560 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
561 if (!cnt) {
562 len += snprintf(buf+len, size-len,
563 "Missing Nodelist Entries\n");
564 break;
565 }
566 cnt--;
567 switch (ndlp->nlp_state) {
568 case NLP_STE_UNUSED_NODE:
569 statep = "UNUSED";
570 break;
571 case NLP_STE_PLOGI_ISSUE:
572 statep = "PLOGI ";
573 break;
574 case NLP_STE_ADISC_ISSUE:
575 statep = "ADISC ";
576 break;
577 case NLP_STE_REG_LOGIN_ISSUE:
578 statep = "REGLOG";
579 break;
580 case NLP_STE_PRLI_ISSUE:
581 statep = "PRLI ";
582 break;
583 case NLP_STE_LOGO_ISSUE:
584 statep = "LOGO ";
585 break;
586 case NLP_STE_UNMAPPED_NODE:
587 statep = "UNMAP ";
588 break;
589 case NLP_STE_MAPPED_NODE:
590 statep = "MAPPED";
591 break;
592 case NLP_STE_NPR_NODE:
593 statep = "NPR ";
594 break;
595 default:
596 statep = "UNKNOWN";
597 }
598 len += snprintf(buf+len, size-len, "%s DID:x%06x ",
599 statep, ndlp->nlp_DID);
600 len += snprintf(buf+len, size-len,
601 "WWPN x%llx ",
602 wwn_to_u64(ndlp->nlp_portname.u.wwn));
603 len += snprintf(buf+len, size-len,
604 "WWNN x%llx ",
605 wwn_to_u64(ndlp->nlp_nodename.u.wwn));
606 if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
607 len += snprintf(buf+len, size-len, "RPI:%03d ",
608 ndlp->nlp_rpi);
609 else
610 len += snprintf(buf+len, size-len, "RPI:none ");
611 len += snprintf(buf+len, size-len, "flag:x%08x ",
612 ndlp->nlp_flag);
613 if (!ndlp->nlp_type)
614 len += snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
615 if (ndlp->nlp_type & NLP_FC_NODE)
616 len += snprintf(buf+len, size-len, "FC_NODE ");
617 if (ndlp->nlp_type & NLP_FABRIC)
618 len += snprintf(buf+len, size-len, "FABRIC ");
619 if (ndlp->nlp_type & NLP_FCP_TARGET)
620 len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ",
621 ndlp->nlp_sid);
622 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
623 len += snprintf(buf+len, size-len, "FCP_INITIATOR ");
624 if (ndlp->nlp_type & NLP_NVME_TARGET)
625 len += snprintf(buf + len,
626 size - len, "NVME_TGT sid:%d ",
627 NLP_NO_SID);
628 if (ndlp->nlp_type & NLP_NVME_INITIATOR)
629 len += snprintf(buf + len,
630 size - len, "NVME_INITIATOR ");
631 len += snprintf(buf+len, size-len, "usgmap:%x ",
632 ndlp->nlp_usg_map);
633 len += snprintf(buf+len, size-len, "refcnt:%x",
634 kref_read(&ndlp->kref));
635 len += snprintf(buf+len, size-len, "\n");
636 }
637 spin_unlock_irq(shost->host_lock);
638
639 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) {
640 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
641 len += snprintf(buf + len, size - len,
642 "\nNVME Targetport Entry ...\n");
643
644 /* Port state is only one of two values for now. */
645 if (phba->targetport->port_id)
646 statep = "REGISTERED";
647 else
648 statep = "INIT";
649 len += snprintf(buf + len, size - len,
650 "TGT WWNN x%llx WWPN x%llx State %s\n",
651 wwn_to_u64(vport->fc_nodename.u.wwn),
652 wwn_to_u64(vport->fc_portname.u.wwn),
653 statep);
654 len += snprintf(buf + len, size - len,
655 " Targetport DID x%06x\n",
656 phba->targetport->port_id);
657 goto out_exit;
658 }
659
660 len += snprintf(buf + len, size - len,
661 "\nNVME Lport/Rport Entries ...\n");
662
663 localport = vport->localport;
664 if (!localport)
665 goto out_exit;
666
667 spin_lock_irq(shost->host_lock);
668
669 /* Port state is only one of two values for now. */
670 if (localport->port_id)
671 statep = "ONLINE";
672 else
673 statep = "UNKNOWN ";
674
675 len += snprintf(buf + len, size - len,
676 "Lport DID x%06x PortState %s\n",
677 localport->port_id, statep);
678
679 len += snprintf(buf + len, size - len, "\tRport List:\n");
680 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
681 /* local short-hand pointer. */
682 if (!ndlp->nrport)
683 continue;
684
685 nrport = ndlp->nrport->remoteport;
686
687 /* Port state is only one of two values for now. */
688 switch (nrport->port_state) {
689 case FC_OBJSTATE_ONLINE:
690 statep = "ONLINE";
691 break;
692 case FC_OBJSTATE_UNKNOWN:
693 statep = "UNKNOWN ";
694 break;
695 default:
696 statep = "UNSUPPORTED";
697 break;
698 }
699
700 /* Tab in to show lport ownership. */
701 len += snprintf(buf + len, size - len,
702 "\t%s Port ID:x%06x ",
703 statep, nrport->port_id);
704 len += snprintf(buf + len, size - len, "WWPN x%llx ",
705 nrport->port_name);
706 len += snprintf(buf + len, size - len, "WWNN x%llx ",
707 nrport->node_name);
708
709 /* An NVME rport can have multiple roles. */
710 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR)
711 len += snprintf(buf + len, size - len,
712 "INITIATOR ");
713 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET)
714 len += snprintf(buf + len, size - len,
715 "TARGET ");
716 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY)
717 len += snprintf(buf + len, size - len,
718 "DISCSRVC ");
719 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
720 FC_PORT_ROLE_NVME_TARGET |
721 FC_PORT_ROLE_NVME_DISCOVERY))
722 len += snprintf(buf + len, size - len,
723 "UNKNOWN ROLE x%x",
724 nrport->port_role);
725 /* Terminate the string. */
726 len += snprintf(buf + len, size - len, "\n");
727 }
728
729 spin_unlock_irq(shost->host_lock);
730 out_exit:
731 return len;
732 }
733
734 /**
735 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer
736 * @vport: The vport to gather target node info from.
737 * @buf: The buffer to dump log into.
738 * @size: The maximum amount of data to process.
739 *
740 * Description:
741 * This routine dumps the NVME statistics associated with @vport
742 *
743 * Return Value:
744 * This routine returns the amount of bytes that were dumped into @buf and will
745 * not exceed @size.
746 **/
747 static int
748 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
749 {
750 struct lpfc_hba *phba = vport->phba;
751 struct lpfc_nvmet_tgtport *tgtp;
752 struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp;
753 struct nvme_fc_local_port *localport;
754 struct lpfc_nvme_lport *lport;
755 uint64_t tot, data1, data2, data3;
756 int len = 0;
757 int cnt;
758
759 if (phba->nvmet_support) {
760 if (!phba->targetport)
761 return len;
762 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
763 len += snprintf(buf + len, size - len,
764 "\nNVME Targetport Statistics\n");
765
766 len += snprintf(buf + len, size - len,
767 "LS: Rcv %08x Drop %08x Abort %08x\n",
768 atomic_read(&tgtp->rcv_ls_req_in),
769 atomic_read(&tgtp->rcv_ls_req_drop),
770 atomic_read(&tgtp->xmt_ls_abort));
771 if (atomic_read(&tgtp->rcv_ls_req_in) !=
772 atomic_read(&tgtp->rcv_ls_req_out)) {
773 len += snprintf(buf + len, size - len,
774 "Rcv LS: in %08x != out %08x\n",
775 atomic_read(&tgtp->rcv_ls_req_in),
776 atomic_read(&tgtp->rcv_ls_req_out));
777 }
778
779 len += snprintf(buf + len, size - len,
780 "LS: Xmt %08x Drop %08x Cmpl %08x\n",
781 atomic_read(&tgtp->xmt_ls_rsp),
782 atomic_read(&tgtp->xmt_ls_drop),
783 atomic_read(&tgtp->xmt_ls_rsp_cmpl));
784
785 len += snprintf(buf + len, size - len,
786 "LS: RSP Abort %08x xb %08x Err %08x\n",
787 atomic_read(&tgtp->xmt_ls_rsp_aborted),
788 atomic_read(&tgtp->xmt_ls_rsp_xb_set),
789 atomic_read(&tgtp->xmt_ls_rsp_error));
790
791 len += snprintf(buf + len, size - len,
792 "FCP: Rcv %08x Defer %08x Release %08x "
793 "Drop %08x\n",
794 atomic_read(&tgtp->rcv_fcp_cmd_in),
795 atomic_read(&tgtp->rcv_fcp_cmd_defer),
796 atomic_read(&tgtp->xmt_fcp_release),
797 atomic_read(&tgtp->rcv_fcp_cmd_drop));
798
799 if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
800 atomic_read(&tgtp->rcv_fcp_cmd_out)) {
801 len += snprintf(buf + len, size - len,
802 "Rcv FCP: in %08x != out %08x\n",
803 atomic_read(&tgtp->rcv_fcp_cmd_in),
804 atomic_read(&tgtp->rcv_fcp_cmd_out));
805 }
806
807 len += snprintf(buf + len, size - len,
808 "FCP Rsp: read %08x readrsp %08x "
809 "write %08x rsp %08x\n",
810 atomic_read(&tgtp->xmt_fcp_read),
811 atomic_read(&tgtp->xmt_fcp_read_rsp),
812 atomic_read(&tgtp->xmt_fcp_write),
813 atomic_read(&tgtp->xmt_fcp_rsp));
814
815 len += snprintf(buf + len, size - len,
816 "FCP Rsp Cmpl: %08x err %08x drop %08x\n",
817 atomic_read(&tgtp->xmt_fcp_rsp_cmpl),
818 atomic_read(&tgtp->xmt_fcp_rsp_error),
819 atomic_read(&tgtp->xmt_fcp_rsp_drop));
820
821 len += snprintf(buf + len, size - len,
822 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n",
823 atomic_read(&tgtp->xmt_fcp_rsp_aborted),
824 atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
825 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
826
827 len += snprintf(buf + len, size - len,
828 "ABORT: Xmt %08x Cmpl %08x\n",
829 atomic_read(&tgtp->xmt_fcp_abort),
830 atomic_read(&tgtp->xmt_fcp_abort_cmpl));
831
832 len += snprintf(buf + len, size - len,
833 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x",
834 atomic_read(&tgtp->xmt_abort_sol),
835 atomic_read(&tgtp->xmt_abort_unsol),
836 atomic_read(&tgtp->xmt_abort_rsp),
837 atomic_read(&tgtp->xmt_abort_rsp_error));
838
839 len += snprintf(buf + len, size - len, "\n");
840
841 cnt = 0;
842 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
843 list_for_each_entry_safe(ctxp, next_ctxp,
844 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
845 list) {
846 cnt++;
847 }
848 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
849 if (cnt) {
850 len += snprintf(buf + len, size - len,
851 "ABORT: %d ctx entries\n", cnt);
852 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
853 list_for_each_entry_safe(ctxp, next_ctxp,
854 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
855 list) {
856 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ))
857 break;
858 len += snprintf(buf + len, size - len,
859 "Entry: oxid %x state %x "
860 "flag %x\n",
861 ctxp->oxid, ctxp->state,
862 ctxp->flag);
863 }
864 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
865 }
866
867 /* Calculate outstanding IOs */
868 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
869 tot += atomic_read(&tgtp->xmt_fcp_release);
870 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
871
872 len += snprintf(buf + len, size - len,
873 "IO_CTX: %08x WAIT: cur %08x tot %08x\n"
874 "CTX Outstanding %08llx\n",
875 phba->sli4_hba.nvmet_xri_cnt,
876 phba->sli4_hba.nvmet_io_wait_cnt,
877 phba->sli4_hba.nvmet_io_wait_total,
878 tot);
879 } else {
880 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
881 return len;
882
883 len += snprintf(buf + len, size - len,
884 "\nNVME Lport Statistics\n");
885
886 len += snprintf(buf + len, size - len,
887 "LS: Xmt %016x Cmpl %016x\n",
888 atomic_read(&phba->fc4NvmeLsRequests),
889 atomic_read(&phba->fc4NvmeLsCmpls));
890
891 tot = atomic_read(&phba->fc4NvmeIoCmpls);
892 data1 = atomic_read(&phba->fc4NvmeInputRequests);
893 data2 = atomic_read(&phba->fc4NvmeOutputRequests);
894 data3 = atomic_read(&phba->fc4NvmeControlRequests);
895
896 len += snprintf(buf + len, size - len,
897 "FCP: Rd %016llx Wr %016llx IO %016llx\n",
898 data1, data2, data3);
899
900 len += snprintf(buf + len, size - len,
901 " Cmpl %016llx Outstanding %016llx\n",
902 tot, (data1 + data2 + data3) - tot);
903
904 localport = vport->localport;
905 if (!localport)
906 return len;
907 lport = (struct lpfc_nvme_lport *)localport->private;
908 if (!lport)
909 return len;
910
911 len += snprintf(buf + len, size - len,
912 "LS Xmt Err: Abrt %08x Err %08x "
913 "Cmpl Err: xb %08x Err %08x\n",
914 atomic_read(&lport->xmt_ls_abort),
915 atomic_read(&lport->xmt_ls_err),
916 atomic_read(&lport->cmpl_ls_xb),
917 atomic_read(&lport->cmpl_ls_err));
918
919 len += snprintf(buf + len, size - len,
920 "FCP Xmt Err: noxri %06x nondlp %06x "
921 "qdepth %06x wqerr %06x Abrt %06x\n",
922 atomic_read(&lport->xmt_fcp_noxri),
923 atomic_read(&lport->xmt_fcp_bad_ndlp),
924 atomic_read(&lport->xmt_fcp_qdepth),
925 atomic_read(&lport->xmt_fcp_wqerr),
926 atomic_read(&lport->xmt_fcp_abort));
927
928 len += snprintf(buf + len, size - len,
929 "FCP Cmpl Err: xb %08x Err %08x\n",
930 atomic_read(&lport->cmpl_fcp_xb),
931 atomic_read(&lport->cmpl_fcp_err));
932
933 }
934
935 return len;
936 }
937
938
939 /**
940 * lpfc_debugfs_nvmektime_data - Dump target node list to a buffer
941 * @vport: The vport to gather target node info from.
942 * @buf: The buffer to dump log into.
943 * @size: The maximum amount of data to process.
944 *
945 * Description:
946 * This routine dumps the NVME statistics associated with @vport
947 *
948 * Return Value:
949 * This routine returns the amount of bytes that were dumped into @buf and will
950 * not exceed @size.
951 **/
952 static int
953 lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
954 {
955 struct lpfc_hba *phba = vport->phba;
956 int len = 0;
957
958 if (phba->nvmet_support == 0) {
959 /* NVME Initiator */
960 len += snprintf(buf + len, PAGE_SIZE - len,
961 "ktime %s: Total Samples: %lld\n",
962 (phba->ktime_on ? "Enabled" : "Disabled"),
963 phba->ktime_data_samples);
964 if (phba->ktime_data_samples == 0)
965 return len;
966
967 len += snprintf(
968 buf + len, PAGE_SIZE - len,
969 "Segment 1: Last NVME Cmd cmpl "
970 "done -to- Start of next NVME cnd (in driver)\n");
971 len += snprintf(
972 buf + len, PAGE_SIZE - len,
973 "avg:%08lld min:%08lld max %08lld\n",
974 div_u64(phba->ktime_seg1_total,
975 phba->ktime_data_samples),
976 phba->ktime_seg1_min,
977 phba->ktime_seg1_max);
978 len += snprintf(
979 buf + len, PAGE_SIZE - len,
980 "Segment 2: Driver start of NVME cmd "
981 "-to- Firmware WQ doorbell\n");
982 len += snprintf(
983 buf + len, PAGE_SIZE - len,
984 "avg:%08lld min:%08lld max %08lld\n",
985 div_u64(phba->ktime_seg2_total,
986 phba->ktime_data_samples),
987 phba->ktime_seg2_min,
988 phba->ktime_seg2_max);
989 len += snprintf(
990 buf + len, PAGE_SIZE - len,
991 "Segment 3: Firmware WQ doorbell -to- "
992 "MSI-X ISR cmpl\n");
993 len += snprintf(
994 buf + len, PAGE_SIZE - len,
995 "avg:%08lld min:%08lld max %08lld\n",
996 div_u64(phba->ktime_seg3_total,
997 phba->ktime_data_samples),
998 phba->ktime_seg3_min,
999 phba->ktime_seg3_max);
1000 len += snprintf(
1001 buf + len, PAGE_SIZE - len,
1002 "Segment 4: MSI-X ISR cmpl -to- "
1003 "NVME cmpl done\n");
1004 len += snprintf(
1005 buf + len, PAGE_SIZE - len,
1006 "avg:%08lld min:%08lld max %08lld\n",
1007 div_u64(phba->ktime_seg4_total,
1008 phba->ktime_data_samples),
1009 phba->ktime_seg4_min,
1010 phba->ktime_seg4_max);
1011 len += snprintf(
1012 buf + len, PAGE_SIZE - len,
1013 "Total IO avg time: %08lld\n",
1014 div_u64(phba->ktime_seg1_total +
1015 phba->ktime_seg2_total +
1016 phba->ktime_seg3_total +
1017 phba->ktime_seg4_total,
1018 phba->ktime_data_samples));
1019 return len;
1020 }
1021
1022 /* NVME Target */
1023 len += snprintf(buf + len, PAGE_SIZE-len,
1024 "ktime %s: Total Samples: %lld %lld\n",
1025 (phba->ktime_on ? "Enabled" : "Disabled"),
1026 phba->ktime_data_samples,
1027 phba->ktime_status_samples);
1028 if (phba->ktime_data_samples == 0)
1029 return len;
1030
1031 len += snprintf(buf + len, PAGE_SIZE-len,
1032 "Segment 1: MSI-X ISR Rcv cmd -to- "
1033 "cmd pass to NVME Layer\n");
1034 len += snprintf(buf + len, PAGE_SIZE-len,
1035 "avg:%08lld min:%08lld max %08lld\n",
1036 div_u64(phba->ktime_seg1_total,
1037 phba->ktime_data_samples),
1038 phba->ktime_seg1_min,
1039 phba->ktime_seg1_max);
1040 len += snprintf(buf + len, PAGE_SIZE-len,
1041 "Segment 2: cmd pass to NVME Layer- "
1042 "-to- Driver rcv cmd OP (action)\n");
1043 len += snprintf(buf + len, PAGE_SIZE-len,
1044 "avg:%08lld min:%08lld max %08lld\n",
1045 div_u64(phba->ktime_seg2_total,
1046 phba->ktime_data_samples),
1047 phba->ktime_seg2_min,
1048 phba->ktime_seg2_max);
1049 len += snprintf(buf + len, PAGE_SIZE-len,
1050 "Segment 3: Driver rcv cmd OP -to- "
1051 "Firmware WQ doorbell: cmd\n");
1052 len += snprintf(buf + len, PAGE_SIZE-len,
1053 "avg:%08lld min:%08lld max %08lld\n",
1054 div_u64(phba->ktime_seg3_total,
1055 phba->ktime_data_samples),
1056 phba->ktime_seg3_min,
1057 phba->ktime_seg3_max);
1058 len += snprintf(buf + len, PAGE_SIZE-len,
1059 "Segment 4: Firmware WQ doorbell: cmd "
1060 "-to- MSI-X ISR for cmd cmpl\n");
1061 len += snprintf(buf + len, PAGE_SIZE-len,
1062 "avg:%08lld min:%08lld max %08lld\n",
1063 div_u64(phba->ktime_seg4_total,
1064 phba->ktime_data_samples),
1065 phba->ktime_seg4_min,
1066 phba->ktime_seg4_max);
1067 len += snprintf(buf + len, PAGE_SIZE-len,
1068 "Segment 5: MSI-X ISR for cmd cmpl "
1069 "-to- NVME layer passed cmd done\n");
1070 len += snprintf(buf + len, PAGE_SIZE-len,
1071 "avg:%08lld min:%08lld max %08lld\n",
1072 div_u64(phba->ktime_seg5_total,
1073 phba->ktime_data_samples),
1074 phba->ktime_seg5_min,
1075 phba->ktime_seg5_max);
1076
1077 if (phba->ktime_status_samples == 0) {
1078 len += snprintf(buf + len, PAGE_SIZE-len,
1079 "Total: cmd received by MSI-X ISR "
1080 "-to- cmd completed on wire\n");
1081 len += snprintf(buf + len, PAGE_SIZE-len,
1082 "avg:%08lld min:%08lld "
1083 "max %08lld\n",
1084 div_u64(phba->ktime_seg10_total,
1085 phba->ktime_data_samples),
1086 phba->ktime_seg10_min,
1087 phba->ktime_seg10_max);
1088 return len;
1089 }
1090
1091 len += snprintf(buf + len, PAGE_SIZE-len,
1092 "Segment 6: NVME layer passed cmd done "
1093 "-to- Driver rcv rsp status OP\n");
1094 len += snprintf(buf + len, PAGE_SIZE-len,
1095 "avg:%08lld min:%08lld max %08lld\n",
1096 div_u64(phba->ktime_seg6_total,
1097 phba->ktime_status_samples),
1098 phba->ktime_seg6_min,
1099 phba->ktime_seg6_max);
1100 len += snprintf(buf + len, PAGE_SIZE-len,
1101 "Segment 7: Driver rcv rsp status OP "
1102 "-to- Firmware WQ doorbell: status\n");
1103 len += snprintf(buf + len, PAGE_SIZE-len,
1104 "avg:%08lld min:%08lld max %08lld\n",
1105 div_u64(phba->ktime_seg7_total,
1106 phba->ktime_status_samples),
1107 phba->ktime_seg7_min,
1108 phba->ktime_seg7_max);
1109 len += snprintf(buf + len, PAGE_SIZE-len,
1110 "Segment 8: Firmware WQ doorbell: status"
1111 " -to- MSI-X ISR for status cmpl\n");
1112 len += snprintf(buf + len, PAGE_SIZE-len,
1113 "avg:%08lld min:%08lld max %08lld\n",
1114 div_u64(phba->ktime_seg8_total,
1115 phba->ktime_status_samples),
1116 phba->ktime_seg8_min,
1117 phba->ktime_seg8_max);
1118 len += snprintf(buf + len, PAGE_SIZE-len,
1119 "Segment 9: MSI-X ISR for status cmpl "
1120 "-to- NVME layer passed status done\n");
1121 len += snprintf(buf + len, PAGE_SIZE-len,
1122 "avg:%08lld min:%08lld max %08lld\n",
1123 div_u64(phba->ktime_seg9_total,
1124 phba->ktime_status_samples),
1125 phba->ktime_seg9_min,
1126 phba->ktime_seg9_max);
1127 len += snprintf(buf + len, PAGE_SIZE-len,
1128 "Total: cmd received by MSI-X ISR -to- "
1129 "cmd completed on wire\n");
1130 len += snprintf(buf + len, PAGE_SIZE-len,
1131 "avg:%08lld min:%08lld max %08lld\n",
1132 div_u64(phba->ktime_seg10_total,
1133 phba->ktime_status_samples),
1134 phba->ktime_seg10_min,
1135 phba->ktime_seg10_max);
1136 return len;
1137 }
1138
1139 /**
1140 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer
1141 * @phba: The phba to gather target node info from.
1142 * @buf: The buffer to dump log into.
1143 * @size: The maximum amount of data to process.
1144 *
1145 * Description:
1146 * This routine dumps the NVME IO trace associated with @phba
1147 *
1148 * Return Value:
1149 * This routine returns the amount of bytes that were dumped into @buf and will
1150 * not exceed @size.
1151 **/
1152 static int
1153 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size)
1154 {
1155 struct lpfc_debugfs_nvmeio_trc *dtp;
1156 int i, state, index, skip;
1157 int len = 0;
1158
1159 state = phba->nvmeio_trc_on;
1160
1161 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) &
1162 (phba->nvmeio_trc_size - 1);
1163 skip = phba->nvmeio_trc_output_idx;
1164
1165 len += snprintf(buf + len, size - len,
1166 "%s IO Trace %s: next_idx %d skip %d size %d\n",
1167 (phba->nvmet_support ? "NVME" : "NVMET"),
1168 (state ? "Enabled" : "Disabled"),
1169 index, skip, phba->nvmeio_trc_size);
1170
1171 if (!phba->nvmeio_trc || state)
1172 return len;
1173
1174 /* trace MUST bhe off to continue */
1175
1176 for (i = index; i < phba->nvmeio_trc_size; i++) {
1177 if (skip) {
1178 skip--;
1179 continue;
1180 }
1181 dtp = phba->nvmeio_trc + i;
1182 phba->nvmeio_trc_output_idx++;
1183
1184 if (!dtp->fmt)
1185 continue;
1186
1187 len += snprintf(buf + len, size - len, dtp->fmt,
1188 dtp->data1, dtp->data2, dtp->data3);
1189
1190 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
1191 phba->nvmeio_trc_output_idx = 0;
1192 len += snprintf(buf + len, size - len,
1193 "Trace Complete\n");
1194 goto out;
1195 }
1196
1197 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
1198 len += snprintf(buf + len, size - len,
1199 "Trace Continue (%d of %d)\n",
1200 phba->nvmeio_trc_output_idx,
1201 phba->nvmeio_trc_size);
1202 goto out;
1203 }
1204 }
1205 for (i = 0; i < index; i++) {
1206 if (skip) {
1207 skip--;
1208 continue;
1209 }
1210 dtp = phba->nvmeio_trc + i;
1211 phba->nvmeio_trc_output_idx++;
1212
1213 if (!dtp->fmt)
1214 continue;
1215
1216 len += snprintf(buf + len, size - len, dtp->fmt,
1217 dtp->data1, dtp->data2, dtp->data3);
1218
1219 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
1220 phba->nvmeio_trc_output_idx = 0;
1221 len += snprintf(buf + len, size - len,
1222 "Trace Complete\n");
1223 goto out;
1224 }
1225
1226 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
1227 len += snprintf(buf + len, size - len,
1228 "Trace Continue (%d of %d)\n",
1229 phba->nvmeio_trc_output_idx,
1230 phba->nvmeio_trc_size);
1231 goto out;
1232 }
1233 }
1234
1235 len += snprintf(buf + len, size - len,
1236 "Trace Done\n");
1237 out:
1238 return len;
1239 }
1240
1241 /**
1242 * lpfc_debugfs_cpucheck_data - Dump target node list to a buffer
1243 * @vport: The vport to gather target node info from.
1244 * @buf: The buffer to dump log into.
1245 * @size: The maximum amount of data to process.
1246 *
1247 * Description:
1248 * This routine dumps the NVME statistics associated with @vport
1249 *
1250 * Return Value:
1251 * This routine returns the amount of bytes that were dumped into @buf and will
1252 * not exceed @size.
1253 **/
1254 static int
1255 lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size)
1256 {
1257 struct lpfc_hba *phba = vport->phba;
1258 int i;
1259 int len = 0;
1260 uint32_t tot_xmt = 0;
1261 uint32_t tot_rcv = 0;
1262 uint32_t tot_cmpl = 0;
1263 uint32_t tot_ccmpl = 0;
1264
1265 if (phba->nvmet_support == 0) {
1266 /* NVME Initiator */
1267 len += snprintf(buf + len, PAGE_SIZE - len,
1268 "CPUcheck %s\n",
1269 (phba->cpucheck_on & LPFC_CHECK_NVME_IO ?
1270 "Enabled" : "Disabled"));
1271 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
1272 if (i >= LPFC_CHECK_CPU_CNT)
1273 break;
1274 len += snprintf(buf + len, PAGE_SIZE - len,
1275 "%02d: xmit x%08x cmpl x%08x\n",
1276 i, phba->cpucheck_xmt_io[i],
1277 phba->cpucheck_cmpl_io[i]);
1278 tot_xmt += phba->cpucheck_xmt_io[i];
1279 tot_cmpl += phba->cpucheck_cmpl_io[i];
1280 }
1281 len += snprintf(buf + len, PAGE_SIZE - len,
1282 "tot:xmit x%08x cmpl x%08x\n",
1283 tot_xmt, tot_cmpl);
1284 return len;
1285 }
1286
1287 /* NVME Target */
1288 len += snprintf(buf + len, PAGE_SIZE - len,
1289 "CPUcheck %s ",
1290 (phba->cpucheck_on & LPFC_CHECK_NVMET_IO ?
1291 "IO Enabled - " : "IO Disabled - "));
1292 len += snprintf(buf + len, PAGE_SIZE - len,
1293 "%s\n",
1294 (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV ?
1295 "Rcv Enabled\n" : "Rcv Disabled\n"));
1296 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
1297 if (i >= LPFC_CHECK_CPU_CNT)
1298 break;
1299 len += snprintf(buf + len, PAGE_SIZE - len,
1300 "%02d: xmit x%08x ccmpl x%08x "
1301 "cmpl x%08x rcv x%08x\n",
1302 i, phba->cpucheck_xmt_io[i],
1303 phba->cpucheck_ccmpl_io[i],
1304 phba->cpucheck_cmpl_io[i],
1305 phba->cpucheck_rcv_io[i]);
1306 tot_xmt += phba->cpucheck_xmt_io[i];
1307 tot_rcv += phba->cpucheck_rcv_io[i];
1308 tot_cmpl += phba->cpucheck_cmpl_io[i];
1309 tot_ccmpl += phba->cpucheck_ccmpl_io[i];
1310 }
1311 len += snprintf(buf + len, PAGE_SIZE - len,
1312 "tot:xmit x%08x ccmpl x%08x cmpl x%08x rcv x%08x\n",
1313 tot_xmt, tot_ccmpl, tot_cmpl, tot_rcv);
1314 return len;
1315 }
1316
1317 #endif
1318
1319 /**
1320 * lpfc_debugfs_disc_trc - Store discovery trace log
1321 * @vport: The vport to associate this trace string with for retrieval.
1322 * @mask: Log entry classification.
1323 * @fmt: Format string to be displayed when dumping the log.
1324 * @data1: 1st data parameter to be applied to @fmt.
1325 * @data2: 2nd data parameter to be applied to @fmt.
1326 * @data3: 3rd data parameter to be applied to @fmt.
1327 *
1328 * Description:
1329 * This routine is used by the driver code to add a debugfs log entry to the
1330 * discovery trace buffer associated with @vport. Only entries with a @mask that
1331 * match the current debugfs discovery mask will be saved. Entries that do not
1332 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
1333 * printf when displaying the log.
1334 **/
1335 inline void
1336 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
1337 uint32_t data1, uint32_t data2, uint32_t data3)
1338 {
1339 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1340 struct lpfc_debugfs_trc *dtp;
1341 int index;
1342
1343 if (!(lpfc_debugfs_mask_disc_trc & mask))
1344 return;
1345
1346 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc ||
1347 !vport || !vport->disc_trc)
1348 return;
1349
1350 index = atomic_inc_return(&vport->disc_trc_cnt) &
1351 (lpfc_debugfs_max_disc_trc - 1);
1352 dtp = vport->disc_trc + index;
1353 dtp->fmt = fmt;
1354 dtp->data1 = data1;
1355 dtp->data2 = data2;
1356 dtp->data3 = data3;
1357 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
1358 dtp->jif = jiffies;
1359 #endif
1360 return;
1361 }
1362
1363 /**
1364 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log
1365 * @phba: The phba to associate this trace string with for retrieval.
1366 * @fmt: Format string to be displayed when dumping the log.
1367 * @data1: 1st data parameter to be applied to @fmt.
1368 * @data2: 2nd data parameter to be applied to @fmt.
1369 * @data3: 3rd data parameter to be applied to @fmt.
1370 *
1371 * Description:
1372 * This routine is used by the driver code to add a debugfs log entry to the
1373 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
1374 * @data3 are used like printf when displaying the log.
1375 **/
1376 inline void
1377 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
1378 uint32_t data1, uint32_t data2, uint32_t data3)
1379 {
1380 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1381 struct lpfc_debugfs_trc *dtp;
1382 int index;
1383
1384 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc ||
1385 !phba || !phba->slow_ring_trc)
1386 return;
1387
1388 index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
1389 (lpfc_debugfs_max_slow_ring_trc - 1);
1390 dtp = phba->slow_ring_trc + index;
1391 dtp->fmt = fmt;
1392 dtp->data1 = data1;
1393 dtp->data2 = data2;
1394 dtp->data3 = data3;
1395 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
1396 dtp->jif = jiffies;
1397 #endif
1398 return;
1399 }
1400
1401 /**
1402 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log
1403 * @phba: The phba to associate this trace string with for retrieval.
1404 * @fmt: Format string to be displayed when dumping the log.
1405 * @data1: 1st data parameter to be applied to @fmt.
1406 * @data2: 2nd data parameter to be applied to @fmt.
1407 * @data3: 3rd data parameter to be applied to @fmt.
1408 *
1409 * Description:
1410 * This routine is used by the driver code to add a debugfs log entry to the
1411 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and
1412 * @data3 are used like printf when displaying the log.
1413 **/
1414 inline void
1415 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt,
1416 uint16_t data1, uint16_t data2, uint32_t data3)
1417 {
1418 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1419 struct lpfc_debugfs_nvmeio_trc *dtp;
1420 int index;
1421
1422 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc)
1423 return;
1424
1425 index = atomic_inc_return(&phba->nvmeio_trc_cnt) &
1426 (phba->nvmeio_trc_size - 1);
1427 dtp = phba->nvmeio_trc + index;
1428 dtp->fmt = fmt;
1429 dtp->data1 = data1;
1430 dtp->data2 = data2;
1431 dtp->data3 = data3;
1432 #endif
1433 }
1434
1435 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1436 /**
1437 * lpfc_debugfs_disc_trc_open - Open the discovery trace log
1438 * @inode: The inode pointer that contains a vport pointer.
1439 * @file: The file pointer to attach the log output.
1440 *
1441 * Description:
1442 * This routine is the entry point for the debugfs open file operation. It gets
1443 * the vport from the i_private field in @inode, allocates the necessary buffer
1444 * for the log, fills the buffer from the in-memory log for this vport, and then
1445 * returns a pointer to that log in the private_data field in @file.
1446 *
1447 * Returns:
1448 * This function returns zero if successful. On error it will return a negative
1449 * error value.
1450 **/
1451 static int
1452 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
1453 {
1454 struct lpfc_vport *vport = inode->i_private;
1455 struct lpfc_debug *debug;
1456 int size;
1457 int rc = -ENOMEM;
1458
1459 if (!lpfc_debugfs_max_disc_trc) {
1460 rc = -ENOSPC;
1461 goto out;
1462 }
1463
1464 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1465 if (!debug)
1466 goto out;
1467
1468 /* Round to page boundary */
1469 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
1470 size = PAGE_ALIGN(size);
1471
1472 debug->buffer = kmalloc(size, GFP_KERNEL);
1473 if (!debug->buffer) {
1474 kfree(debug);
1475 goto out;
1476 }
1477
1478 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size);
1479 file->private_data = debug;
1480
1481 rc = 0;
1482 out:
1483 return rc;
1484 }
1485
1486 /**
1487 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log
1488 * @inode: The inode pointer that contains a vport pointer.
1489 * @file: The file pointer to attach the log output.
1490 *
1491 * Description:
1492 * This routine is the entry point for the debugfs open file operation. It gets
1493 * the vport from the i_private field in @inode, allocates the necessary buffer
1494 * for the log, fills the buffer from the in-memory log for this vport, and then
1495 * returns a pointer to that log in the private_data field in @file.
1496 *
1497 * Returns:
1498 * This function returns zero if successful. On error it will return a negative
1499 * error value.
1500 **/
1501 static int
1502 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
1503 {
1504 struct lpfc_hba *phba = inode->i_private;
1505 struct lpfc_debug *debug;
1506 int size;
1507 int rc = -ENOMEM;
1508
1509 if (!lpfc_debugfs_max_slow_ring_trc) {
1510 rc = -ENOSPC;
1511 goto out;
1512 }
1513
1514 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1515 if (!debug)
1516 goto out;
1517
1518 /* Round to page boundary */
1519 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
1520 size = PAGE_ALIGN(size);
1521
1522 debug->buffer = kmalloc(size, GFP_KERNEL);
1523 if (!debug->buffer) {
1524 kfree(debug);
1525 goto out;
1526 }
1527
1528 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size);
1529 file->private_data = debug;
1530
1531 rc = 0;
1532 out:
1533 return rc;
1534 }
1535
1536 /**
1537 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
1538 * @inode: The inode pointer that contains a vport pointer.
1539 * @file: The file pointer to attach the log output.
1540 *
1541 * Description:
1542 * This routine is the entry point for the debugfs open file operation. It gets
1543 * the vport from the i_private field in @inode, allocates the necessary buffer
1544 * for the log, fills the buffer from the in-memory log for this vport, and then
1545 * returns a pointer to that log in the private_data field in @file.
1546 *
1547 * Returns:
1548 * This function returns zero if successful. On error it will return a negative
1549 * error value.
1550 **/
1551 static int
1552 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
1553 {
1554 struct lpfc_hba *phba = inode->i_private;
1555 struct lpfc_debug *debug;
1556 int rc = -ENOMEM;
1557
1558 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1559 if (!debug)
1560 goto out;
1561
1562 /* Round to page boundary */
1563 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
1564 if (!debug->buffer) {
1565 kfree(debug);
1566 goto out;
1567 }
1568
1569 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer,
1570 LPFC_HBQINFO_SIZE);
1571 file->private_data = debug;
1572
1573 rc = 0;
1574 out:
1575 return rc;
1576 }
1577
1578 /**
1579 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
1580 * @inode: The inode pointer that contains a vport pointer.
1581 * @file: The file pointer to attach the log output.
1582 *
1583 * Description:
1584 * This routine is the entry point for the debugfs open file operation. It gets
1585 * the vport from the i_private field in @inode, allocates the necessary buffer
1586 * for the log, fills the buffer from the in-memory log for this vport, and then
1587 * returns a pointer to that log in the private_data field in @file.
1588 *
1589 * Returns:
1590 * This function returns zero if successful. On error it will return a negative
1591 * error value.
1592 **/
1593 static int
1594 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
1595 {
1596 struct lpfc_hba *phba = inode->i_private;
1597 struct lpfc_debug *debug;
1598 int rc = -ENOMEM;
1599
1600 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1601 if (!debug)
1602 goto out;
1603
1604 /* Round to page boundary */
1605 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
1606 if (!debug->buffer) {
1607 kfree(debug);
1608 goto out;
1609 }
1610
1611 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer,
1612 LPFC_DUMPHBASLIM_SIZE);
1613 file->private_data = debug;
1614
1615 rc = 0;
1616 out:
1617 return rc;
1618 }
1619
1620 /**
1621 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
1622 * @inode: The inode pointer that contains a vport pointer.
1623 * @file: The file pointer to attach the log output.
1624 *
1625 * Description:
1626 * This routine is the entry point for the debugfs open file operation. It gets
1627 * the vport from the i_private field in @inode, allocates the necessary buffer
1628 * for the log, fills the buffer from the in-memory log for this vport, and then
1629 * returns a pointer to that log in the private_data field in @file.
1630 *
1631 * Returns:
1632 * This function returns zero if successful. On error it will return a negative
1633 * error value.
1634 **/
1635 static int
1636 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
1637 {
1638 struct lpfc_hba *phba = inode->i_private;
1639 struct lpfc_debug *debug;
1640 int rc = -ENOMEM;
1641
1642 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1643 if (!debug)
1644 goto out;
1645
1646 /* Round to page boundary */
1647 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
1648 if (!debug->buffer) {
1649 kfree(debug);
1650 goto out;
1651 }
1652
1653 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer,
1654 LPFC_DUMPHOSTSLIM_SIZE);
1655 file->private_data = debug;
1656
1657 rc = 0;
1658 out:
1659 return rc;
1660 }
1661
1662 static int
1663 lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file)
1664 {
1665 struct lpfc_debug *debug;
1666 int rc = -ENOMEM;
1667
1668 if (!_dump_buf_data)
1669 return -EBUSY;
1670
1671 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1672 if (!debug)
1673 goto out;
1674
1675 /* Round to page boundary */
1676 pr_err("9059 BLKGRD: %s: _dump_buf_data=0x%p\n",
1677 __func__, _dump_buf_data);
1678 debug->buffer = _dump_buf_data;
1679 if (!debug->buffer) {
1680 kfree(debug);
1681 goto out;
1682 }
1683
1684 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT;
1685 file->private_data = debug;
1686
1687 rc = 0;
1688 out:
1689 return rc;
1690 }
1691
1692 static int
1693 lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file)
1694 {
1695 struct lpfc_debug *debug;
1696 int rc = -ENOMEM;
1697
1698 if (!_dump_buf_dif)
1699 return -EBUSY;
1700
1701 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1702 if (!debug)
1703 goto out;
1704
1705 /* Round to page boundary */
1706 pr_err("9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%pD\n",
1707 __func__, _dump_buf_dif, file);
1708 debug->buffer = _dump_buf_dif;
1709 if (!debug->buffer) {
1710 kfree(debug);
1711 goto out;
1712 }
1713
1714 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT;
1715 file->private_data = debug;
1716
1717 rc = 0;
1718 out:
1719 return rc;
1720 }
1721
1722 static ssize_t
1723 lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
1724 size_t nbytes, loff_t *ppos)
1725 {
1726 /*
1727 * The Data/DIF buffers only save one failing IO
1728 * The write op is used as a reset mechanism after an IO has
1729 * already been saved to the next one can be saved
1730 */
1731 spin_lock(&_dump_buf_lock);
1732
1733 memset((void *)_dump_buf_data, 0,
1734 ((1 << PAGE_SHIFT) << _dump_buf_data_order));
1735 memset((void *)_dump_buf_dif, 0,
1736 ((1 << PAGE_SHIFT) << _dump_buf_dif_order));
1737
1738 _dump_buf_done = 0;
1739
1740 spin_unlock(&_dump_buf_lock);
1741
1742 return nbytes;
1743 }
1744
1745 static ssize_t
1746 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
1747 size_t nbytes, loff_t *ppos)
1748 {
1749 struct dentry *dent = file->f_path.dentry;
1750 struct lpfc_hba *phba = file->private_data;
1751 char cbuf[32];
1752 uint64_t tmp = 0;
1753 int cnt = 0;
1754
1755 if (dent == phba->debug_writeGuard)
1756 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
1757 else if (dent == phba->debug_writeApp)
1758 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
1759 else if (dent == phba->debug_writeRef)
1760 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
1761 else if (dent == phba->debug_readGuard)
1762 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
1763 else if (dent == phba->debug_readApp)
1764 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
1765 else if (dent == phba->debug_readRef)
1766 cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
1767 else if (dent == phba->debug_InjErrNPortID)
1768 cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid);
1769 else if (dent == phba->debug_InjErrWWPN) {
1770 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name));
1771 tmp = cpu_to_be64(tmp);
1772 cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp);
1773 } else if (dent == phba->debug_InjErrLBA) {
1774 if (phba->lpfc_injerr_lba == (sector_t)(-1))
1775 cnt = snprintf(cbuf, 32, "off\n");
1776 else
1777 cnt = snprintf(cbuf, 32, "0x%llx\n",
1778 (uint64_t) phba->lpfc_injerr_lba);
1779 } else
1780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1781 "0547 Unknown debugfs error injection entry\n");
1782
1783 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt);
1784 }
1785
1786 static ssize_t
1787 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf,
1788 size_t nbytes, loff_t *ppos)
1789 {
1790 struct dentry *dent = file->f_path.dentry;
1791 struct lpfc_hba *phba = file->private_data;
1792 char dstbuf[33];
1793 uint64_t tmp = 0;
1794 int size;
1795
1796 memset(dstbuf, 0, 33);
1797 size = (nbytes < 32) ? nbytes : 32;
1798 if (copy_from_user(dstbuf, buf, size))
1799 return 0;
1800
1801 if (dent == phba->debug_InjErrLBA) {
1802 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f'))
1803 tmp = (uint64_t)(-1);
1804 }
1805
1806 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp)))
1807 return 0;
1808
1809 if (dent == phba->debug_writeGuard)
1810 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;
1811 else if (dent == phba->debug_writeApp)
1812 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;
1813 else if (dent == phba->debug_writeRef)
1814 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;
1815 else if (dent == phba->debug_readGuard)
1816 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp;
1817 else if (dent == phba->debug_readApp)
1818 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;
1819 else if (dent == phba->debug_readRef)
1820 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp;
1821 else if (dent == phba->debug_InjErrLBA)
1822 phba->lpfc_injerr_lba = (sector_t)tmp;
1823 else if (dent == phba->debug_InjErrNPortID)
1824 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID);
1825 else if (dent == phba->debug_InjErrWWPN) {
1826 tmp = cpu_to_be64(tmp);
1827 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name));
1828 } else
1829 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1830 "0548 Unknown debugfs error injection entry\n");
1831
1832 return nbytes;
1833 }
1834
1835 static int
1836 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file)
1837 {
1838 return 0;
1839 }
1840
1841 /**
1842 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
1843 * @inode: The inode pointer that contains a vport pointer.
1844 * @file: The file pointer to attach the log output.
1845 *
1846 * Description:
1847 * This routine is the entry point for the debugfs open file operation. It gets
1848 * the vport from the i_private field in @inode, allocates the necessary buffer
1849 * for the log, fills the buffer from the in-memory log for this vport, and then
1850 * returns a pointer to that log in the private_data field in @file.
1851 *
1852 * Returns:
1853 * This function returns zero if successful. On error it will return a negative
1854 * error value.
1855 **/
1856 static int
1857 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
1858 {
1859 struct lpfc_vport *vport = inode->i_private;
1860 struct lpfc_debug *debug;
1861 int rc = -ENOMEM;
1862
1863 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1864 if (!debug)
1865 goto out;
1866
1867 /* Round to page boundary */
1868 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
1869 if (!debug->buffer) {
1870 kfree(debug);
1871 goto out;
1872 }
1873
1874 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer,
1875 LPFC_NODELIST_SIZE);
1876 file->private_data = debug;
1877
1878 rc = 0;
1879 out:
1880 return rc;
1881 }
1882
1883 /**
1884 * lpfc_debugfs_lseek - Seek through a debugfs file
1885 * @file: The file pointer to seek through.
1886 * @off: The offset to seek to or the amount to seek by.
1887 * @whence: Indicates how to seek.
1888 *
1889 * Description:
1890 * This routine is the entry point for the debugfs lseek file operation. The
1891 * @whence parameter indicates whether @off is the offset to directly seek to,
1892 * or if it is a value to seek forward or reverse by. This function figures out
1893 * what the new offset of the debugfs file will be and assigns that value to the
1894 * f_pos field of @file.
1895 *
1896 * Returns:
1897 * This function returns the new offset if successful and returns a negative
1898 * error if unable to process the seek.
1899 **/
1900 static loff_t
1901 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
1902 {
1903 struct lpfc_debug *debug = file->private_data;
1904 return fixed_size_llseek(file, off, whence, debug->len);
1905 }
1906
1907 /**
1908 * lpfc_debugfs_read - Read a debugfs file
1909 * @file: The file pointer to read from.
1910 * @buf: The buffer to copy the data to.
1911 * @nbytes: The number of bytes to read.
1912 * @ppos: The position in the file to start reading from.
1913 *
1914 * Description:
1915 * This routine reads data from from the buffer indicated in the private_data
1916 * field of @file. It will start reading at @ppos and copy up to @nbytes of
1917 * data to @buf.
1918 *
1919 * Returns:
1920 * This function returns the amount of data that was read (this could be less
1921 * than @nbytes if the end of the file was reached) or a negative error value.
1922 **/
1923 static ssize_t
1924 lpfc_debugfs_read(struct file *file, char __user *buf,
1925 size_t nbytes, loff_t *ppos)
1926 {
1927 struct lpfc_debug *debug = file->private_data;
1928
1929 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
1930 debug->len);
1931 }
1932
1933 /**
1934 * lpfc_debugfs_release - Release the buffer used to store debugfs file data
1935 * @inode: The inode pointer that contains a vport pointer. (unused)
1936 * @file: The file pointer that contains the buffer to release.
1937 *
1938 * Description:
1939 * This routine frees the buffer that was allocated when the debugfs file was
1940 * opened.
1941 *
1942 * Returns:
1943 * This function returns zero.
1944 **/
1945 static int
1946 lpfc_debugfs_release(struct inode *inode, struct file *file)
1947 {
1948 struct lpfc_debug *debug = file->private_data;
1949
1950 kfree(debug->buffer);
1951 kfree(debug);
1952
1953 return 0;
1954 }
1955
1956 static int
1957 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
1958 {
1959 struct lpfc_debug *debug = file->private_data;
1960
1961 debug->buffer = NULL;
1962 kfree(debug);
1963
1964 return 0;
1965 }
1966
1967
1968 static int
1969 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file)
1970 {
1971 struct lpfc_vport *vport = inode->i_private;
1972 struct lpfc_debug *debug;
1973 int rc = -ENOMEM;
1974
1975 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1976 if (!debug)
1977 goto out;
1978
1979 /* Round to page boundary */
1980 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL);
1981 if (!debug->buffer) {
1982 kfree(debug);
1983 goto out;
1984 }
1985
1986 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer,
1987 LPFC_NVMESTAT_SIZE);
1988
1989 debug->i_private = inode->i_private;
1990 file->private_data = debug;
1991
1992 rc = 0;
1993 out:
1994 return rc;
1995 }
1996
1997 static ssize_t
1998 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf,
1999 size_t nbytes, loff_t *ppos)
2000 {
2001 struct lpfc_debug *debug = file->private_data;
2002 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
2003 struct lpfc_hba *phba = vport->phba;
2004 struct lpfc_nvmet_tgtport *tgtp;
2005 char mybuf[64];
2006 char *pbuf;
2007
2008 if (!phba->targetport)
2009 return -ENXIO;
2010
2011 if (nbytes > 64)
2012 nbytes = 64;
2013
2014 memset(mybuf, 0, sizeof(mybuf));
2015
2016 if (copy_from_user(mybuf, buf, nbytes))
2017 return -EFAULT;
2018 pbuf = &mybuf[0];
2019
2020 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
2021 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) ||
2022 (strncmp(pbuf, "zero", strlen("zero")) == 0)) {
2023 atomic_set(&tgtp->rcv_ls_req_in, 0);
2024 atomic_set(&tgtp->rcv_ls_req_out, 0);
2025 atomic_set(&tgtp->rcv_ls_req_drop, 0);
2026 atomic_set(&tgtp->xmt_ls_abort, 0);
2027 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0);
2028 atomic_set(&tgtp->xmt_ls_rsp, 0);
2029 atomic_set(&tgtp->xmt_ls_drop, 0);
2030 atomic_set(&tgtp->xmt_ls_rsp_error, 0);
2031 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0);
2032
2033 atomic_set(&tgtp->rcv_fcp_cmd_in, 0);
2034 atomic_set(&tgtp->rcv_fcp_cmd_out, 0);
2035 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0);
2036 atomic_set(&tgtp->xmt_fcp_drop, 0);
2037 atomic_set(&tgtp->xmt_fcp_read_rsp, 0);
2038 atomic_set(&tgtp->xmt_fcp_read, 0);
2039 atomic_set(&tgtp->xmt_fcp_write, 0);
2040 atomic_set(&tgtp->xmt_fcp_rsp, 0);
2041 atomic_set(&tgtp->xmt_fcp_release, 0);
2042 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0);
2043 atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
2044 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
2045
2046 atomic_set(&tgtp->xmt_fcp_abort, 0);
2047 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0);
2048 atomic_set(&tgtp->xmt_abort_sol, 0);
2049 atomic_set(&tgtp->xmt_abort_unsol, 0);
2050 atomic_set(&tgtp->xmt_abort_rsp, 0);
2051 atomic_set(&tgtp->xmt_abort_rsp_error, 0);
2052 }
2053 return nbytes;
2054 }
2055
2056 static int
2057 lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file)
2058 {
2059 struct lpfc_vport *vport = inode->i_private;
2060 struct lpfc_debug *debug;
2061 int rc = -ENOMEM;
2062
2063 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2064 if (!debug)
2065 goto out;
2066
2067 /* Round to page boundary */
2068 debug->buffer = kmalloc(LPFC_NVMEKTIME_SIZE, GFP_KERNEL);
2069 if (!debug->buffer) {
2070 kfree(debug);
2071 goto out;
2072 }
2073
2074 debug->len = lpfc_debugfs_nvmektime_data(vport, debug->buffer,
2075 LPFC_NVMEKTIME_SIZE);
2076
2077 debug->i_private = inode->i_private;
2078 file->private_data = debug;
2079
2080 rc = 0;
2081 out:
2082 return rc;
2083 }
2084
2085 static ssize_t
2086 lpfc_debugfs_nvmektime_write(struct file *file, const char __user *buf,
2087 size_t nbytes, loff_t *ppos)
2088 {
2089 struct lpfc_debug *debug = file->private_data;
2090 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
2091 struct lpfc_hba *phba = vport->phba;
2092 char mybuf[64];
2093 char *pbuf;
2094
2095 if (nbytes > 64)
2096 nbytes = 64;
2097
2098 memset(mybuf, 0, sizeof(mybuf));
2099
2100 if (copy_from_user(mybuf, buf, nbytes))
2101 return -EFAULT;
2102 pbuf = &mybuf[0];
2103
2104 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
2105 phba->ktime_data_samples = 0;
2106 phba->ktime_status_samples = 0;
2107 phba->ktime_seg1_total = 0;
2108 phba->ktime_seg1_max = 0;
2109 phba->ktime_seg1_min = 0xffffffff;
2110 phba->ktime_seg2_total = 0;
2111 phba->ktime_seg2_max = 0;
2112 phba->ktime_seg2_min = 0xffffffff;
2113 phba->ktime_seg3_total = 0;
2114 phba->ktime_seg3_max = 0;
2115 phba->ktime_seg3_min = 0xffffffff;
2116 phba->ktime_seg4_total = 0;
2117 phba->ktime_seg4_max = 0;
2118 phba->ktime_seg4_min = 0xffffffff;
2119 phba->ktime_seg5_total = 0;
2120 phba->ktime_seg5_max = 0;
2121 phba->ktime_seg5_min = 0xffffffff;
2122 phba->ktime_seg6_total = 0;
2123 phba->ktime_seg6_max = 0;
2124 phba->ktime_seg6_min = 0xffffffff;
2125 phba->ktime_seg7_total = 0;
2126 phba->ktime_seg7_max = 0;
2127 phba->ktime_seg7_min = 0xffffffff;
2128 phba->ktime_seg8_total = 0;
2129 phba->ktime_seg8_max = 0;
2130 phba->ktime_seg8_min = 0xffffffff;
2131 phba->ktime_seg9_total = 0;
2132 phba->ktime_seg9_max = 0;
2133 phba->ktime_seg9_min = 0xffffffff;
2134 phba->ktime_seg10_total = 0;
2135 phba->ktime_seg10_max = 0;
2136 phba->ktime_seg10_min = 0xffffffff;
2137
2138 phba->ktime_on = 1;
2139 return strlen(pbuf);
2140 } else if ((strncmp(pbuf, "off",
2141 sizeof("off") - 1) == 0)) {
2142 phba->ktime_on = 0;
2143 return strlen(pbuf);
2144 } else if ((strncmp(pbuf, "zero",
2145 sizeof("zero") - 1) == 0)) {
2146 phba->ktime_data_samples = 0;
2147 phba->ktime_status_samples = 0;
2148 phba->ktime_seg1_total = 0;
2149 phba->ktime_seg1_max = 0;
2150 phba->ktime_seg1_min = 0xffffffff;
2151 phba->ktime_seg2_total = 0;
2152 phba->ktime_seg2_max = 0;
2153 phba->ktime_seg2_min = 0xffffffff;
2154 phba->ktime_seg3_total = 0;
2155 phba->ktime_seg3_max = 0;
2156 phba->ktime_seg3_min = 0xffffffff;
2157 phba->ktime_seg4_total = 0;
2158 phba->ktime_seg4_max = 0;
2159 phba->ktime_seg4_min = 0xffffffff;
2160 phba->ktime_seg5_total = 0;
2161 phba->ktime_seg5_max = 0;
2162 phba->ktime_seg5_min = 0xffffffff;
2163 phba->ktime_seg6_total = 0;
2164 phba->ktime_seg6_max = 0;
2165 phba->ktime_seg6_min = 0xffffffff;
2166 phba->ktime_seg7_total = 0;
2167 phba->ktime_seg7_max = 0;
2168 phba->ktime_seg7_min = 0xffffffff;
2169 phba->ktime_seg8_total = 0;
2170 phba->ktime_seg8_max = 0;
2171 phba->ktime_seg8_min = 0xffffffff;
2172 phba->ktime_seg9_total = 0;
2173 phba->ktime_seg9_max = 0;
2174 phba->ktime_seg9_min = 0xffffffff;
2175 phba->ktime_seg10_total = 0;
2176 phba->ktime_seg10_max = 0;
2177 phba->ktime_seg10_min = 0xffffffff;
2178 return strlen(pbuf);
2179 }
2180 return -EINVAL;
2181 }
2182
2183 static int
2184 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file)
2185 {
2186 struct lpfc_hba *phba = inode->i_private;
2187 struct lpfc_debug *debug;
2188 int rc = -ENOMEM;
2189
2190 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2191 if (!debug)
2192 goto out;
2193
2194 /* Round to page boundary */
2195 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL);
2196 if (!debug->buffer) {
2197 kfree(debug);
2198 goto out;
2199 }
2200
2201 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer,
2202 LPFC_NVMEIO_TRC_SIZE);
2203
2204 debug->i_private = inode->i_private;
2205 file->private_data = debug;
2206
2207 rc = 0;
2208 out:
2209 return rc;
2210 }
2211
2212 static ssize_t
2213 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
2214 size_t nbytes, loff_t *ppos)
2215 {
2216 struct lpfc_debug *debug = file->private_data;
2217 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2218 int i;
2219 unsigned long sz;
2220 char mybuf[64];
2221 char *pbuf;
2222
2223 if (nbytes > 64)
2224 nbytes = 64;
2225
2226 memset(mybuf, 0, sizeof(mybuf));
2227
2228 if (copy_from_user(mybuf, buf, nbytes))
2229 return -EFAULT;
2230 pbuf = &mybuf[0];
2231
2232 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) {
2233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2234 "0570 nvmeio_trc_off\n");
2235 phba->nvmeio_trc_output_idx = 0;
2236 phba->nvmeio_trc_on = 0;
2237 return strlen(pbuf);
2238 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
2239 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2240 "0571 nvmeio_trc_on\n");
2241 phba->nvmeio_trc_output_idx = 0;
2242 phba->nvmeio_trc_on = 1;
2243 return strlen(pbuf);
2244 }
2245
2246 /* We must be off to allocate the trace buffer */
2247 if (phba->nvmeio_trc_on != 0)
2248 return -EINVAL;
2249
2250 /* If not on or off, the parameter is the trace buffer size */
2251 i = kstrtoul(pbuf, 0, &sz);
2252 if (i)
2253 return -EINVAL;
2254 phba->nvmeio_trc_size = (uint32_t)sz;
2255
2256 /* It must be a power of 2 - round down */
2257 i = 0;
2258 while (sz > 1) {
2259 sz = sz >> 1;
2260 i++;
2261 }
2262 sz = (1 << i);
2263 if (phba->nvmeio_trc_size != sz)
2264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2265 "0572 nvmeio_trc_size changed to %ld\n",
2266 sz);
2267 phba->nvmeio_trc_size = (uint32_t)sz;
2268
2269 /* If one previously exists, free it */
2270 kfree(phba->nvmeio_trc);
2271
2272 /* Allocate new trace buffer and initialize */
2273 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) *
2274 sz), GFP_KERNEL);
2275 if (!phba->nvmeio_trc) {
2276 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2277 "0573 Cannot create debugfs "
2278 "nvmeio_trc buffer\n");
2279 return -ENOMEM;
2280 }
2281 atomic_set(&phba->nvmeio_trc_cnt, 0);
2282 phba->nvmeio_trc_on = 0;
2283 phba->nvmeio_trc_output_idx = 0;
2284
2285 return strlen(pbuf);
2286 }
2287
2288 static int
2289 lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file)
2290 {
2291 struct lpfc_vport *vport = inode->i_private;
2292 struct lpfc_debug *debug;
2293 int rc = -ENOMEM;
2294
2295 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2296 if (!debug)
2297 goto out;
2298
2299 /* Round to page boundary */
2300 debug->buffer = kmalloc(LPFC_CPUCHECK_SIZE, GFP_KERNEL);
2301 if (!debug->buffer) {
2302 kfree(debug);
2303 goto out;
2304 }
2305
2306 debug->len = lpfc_debugfs_cpucheck_data(vport, debug->buffer,
2307 LPFC_NVMEKTIME_SIZE);
2308
2309 debug->i_private = inode->i_private;
2310 file->private_data = debug;
2311
2312 rc = 0;
2313 out:
2314 return rc;
2315 }
2316
2317 static ssize_t
2318 lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf,
2319 size_t nbytes, loff_t *ppos)
2320 {
2321 struct lpfc_debug *debug = file->private_data;
2322 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
2323 struct lpfc_hba *phba = vport->phba;
2324 char mybuf[64];
2325 char *pbuf;
2326 int i;
2327
2328 if (nbytes > 64)
2329 nbytes = 64;
2330
2331 memset(mybuf, 0, sizeof(mybuf));
2332
2333 if (copy_from_user(mybuf, buf, nbytes))
2334 return -EFAULT;
2335 pbuf = &mybuf[0];
2336
2337 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
2338 if (phba->nvmet_support)
2339 phba->cpucheck_on |= LPFC_CHECK_NVMET_IO;
2340 else
2341 phba->cpucheck_on |= LPFC_CHECK_NVME_IO;
2342 return strlen(pbuf);
2343 } else if ((strncmp(pbuf, "rcv",
2344 sizeof("rcv") - 1) == 0)) {
2345 if (phba->nvmet_support)
2346 phba->cpucheck_on |= LPFC_CHECK_NVMET_RCV;
2347 else
2348 return -EINVAL;
2349 return strlen(pbuf);
2350 } else if ((strncmp(pbuf, "off",
2351 sizeof("off") - 1) == 0)) {
2352 phba->cpucheck_on = LPFC_CHECK_OFF;
2353 return strlen(pbuf);
2354 } else if ((strncmp(pbuf, "zero",
2355 sizeof("zero") - 1) == 0)) {
2356 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
2357 if (i >= LPFC_CHECK_CPU_CNT)
2358 break;
2359 phba->cpucheck_rcv_io[i] = 0;
2360 phba->cpucheck_xmt_io[i] = 0;
2361 phba->cpucheck_cmpl_io[i] = 0;
2362 phba->cpucheck_ccmpl_io[i] = 0;
2363 }
2364 return strlen(pbuf);
2365 }
2366 return -EINVAL;
2367 }
2368
2369 /*
2370 * ---------------------------------
2371 * iDiag debugfs file access methods
2372 * ---------------------------------
2373 *
2374 * All access methods are through the proper SLI4 PCI function's debugfs
2375 * iDiag directory:
2376 *
2377 * /sys/kernel/debug/lpfc/fn<#>/iDiag
2378 */
2379
2380 /**
2381 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
2382 * @buf: The pointer to the user space buffer.
2383 * @nbytes: The number of bytes in the user space buffer.
2384 * @idiag_cmd: pointer to the idiag command struct.
2385 *
2386 * This routine reads data from debugfs user space buffer and parses the
2387 * buffer for getting the idiag command and arguments. The while space in
2388 * between the set of data is used as the parsing separator.
2389 *
2390 * This routine returns 0 when successful, it returns proper error code
2391 * back to the user space in error conditions.
2392 */
2393 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
2394 struct lpfc_idiag_cmd *idiag_cmd)
2395 {
2396 char mybuf[64];
2397 char *pbuf, *step_str;
2398 int i;
2399 size_t bsize;
2400
2401 memset(mybuf, 0, sizeof(mybuf));
2402 memset(idiag_cmd, 0, sizeof(*idiag_cmd));
2403 bsize = min(nbytes, (sizeof(mybuf)-1));
2404
2405 if (copy_from_user(mybuf, buf, bsize))
2406 return -EFAULT;
2407 pbuf = &mybuf[0];
2408 step_str = strsep(&pbuf, "\t ");
2409
2410 /* The opcode must present */
2411 if (!step_str)
2412 return -EINVAL;
2413
2414 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
2415 if (idiag_cmd->opcode == 0)
2416 return -EINVAL;
2417
2418 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
2419 step_str = strsep(&pbuf, "\t ");
2420 if (!step_str)
2421 return i;
2422 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
2423 }
2424 return i;
2425 }
2426
2427 /**
2428 * lpfc_idiag_open - idiag open debugfs
2429 * @inode: The inode pointer that contains a pointer to phba.
2430 * @file: The file pointer to attach the file operation.
2431 *
2432 * Description:
2433 * This routine is the entry point for the debugfs open file operation. It
2434 * gets the reference to phba from the i_private field in @inode, it then
2435 * allocates buffer for the file operation, performs the necessary PCI config
2436 * space read into the allocated buffer according to the idiag user command
2437 * setup, and then returns a pointer to buffer in the private_data field in
2438 * @file.
2439 *
2440 * Returns:
2441 * This function returns zero if successful. On error it will return an
2442 * negative error value.
2443 **/
2444 static int
2445 lpfc_idiag_open(struct inode *inode, struct file *file)
2446 {
2447 struct lpfc_debug *debug;
2448
2449 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2450 if (!debug)
2451 return -ENOMEM;
2452
2453 debug->i_private = inode->i_private;
2454 debug->buffer = NULL;
2455 file->private_data = debug;
2456
2457 return 0;
2458 }
2459
2460 /**
2461 * lpfc_idiag_release - Release idiag access file operation
2462 * @inode: The inode pointer that contains a vport pointer. (unused)
2463 * @file: The file pointer that contains the buffer to release.
2464 *
2465 * Description:
2466 * This routine is the generic release routine for the idiag access file
2467 * operation, it frees the buffer that was allocated when the debugfs file
2468 * was opened.
2469 *
2470 * Returns:
2471 * This function returns zero.
2472 **/
2473 static int
2474 lpfc_idiag_release(struct inode *inode, struct file *file)
2475 {
2476 struct lpfc_debug *debug = file->private_data;
2477
2478 /* Free the buffers to the file operation */
2479 kfree(debug->buffer);
2480 kfree(debug);
2481
2482 return 0;
2483 }
2484
2485 /**
2486 * lpfc_idiag_cmd_release - Release idiag cmd access file operation
2487 * @inode: The inode pointer that contains a vport pointer. (unused)
2488 * @file: The file pointer that contains the buffer to release.
2489 *
2490 * Description:
2491 * This routine frees the buffer that was allocated when the debugfs file
2492 * was opened. It also reset the fields in the idiag command struct in the
2493 * case of command for write operation.
2494 *
2495 * Returns:
2496 * This function returns zero.
2497 **/
2498 static int
2499 lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
2500 {
2501 struct lpfc_debug *debug = file->private_data;
2502
2503 if (debug->op == LPFC_IDIAG_OP_WR) {
2504 switch (idiag.cmd.opcode) {
2505 case LPFC_IDIAG_CMD_PCICFG_WR:
2506 case LPFC_IDIAG_CMD_PCICFG_ST:
2507 case LPFC_IDIAG_CMD_PCICFG_CL:
2508 case LPFC_IDIAG_CMD_QUEACC_WR:
2509 case LPFC_IDIAG_CMD_QUEACC_ST:
2510 case LPFC_IDIAG_CMD_QUEACC_CL:
2511 memset(&idiag, 0, sizeof(idiag));
2512 break;
2513 default:
2514 break;
2515 }
2516 }
2517
2518 /* Free the buffers to the file operation */
2519 kfree(debug->buffer);
2520 kfree(debug);
2521
2522 return 0;
2523 }
2524
2525 /**
2526 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
2527 * @file: The file pointer to read from.
2528 * @buf: The buffer to copy the data to.
2529 * @nbytes: The number of bytes to read.
2530 * @ppos: The position in the file to start reading from.
2531 *
2532 * Description:
2533 * This routine reads data from the @phba pci config space according to the
2534 * idiag command, and copies to user @buf. Depending on the PCI config space
2535 * read command setup, it does either a single register read of a byte
2536 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
2537 * registers from the 4K extended PCI config space.
2538 *
2539 * Returns:
2540 * This function returns the amount of data that was read (this could be less
2541 * than @nbytes if the end of the file was reached) or a negative error value.
2542 **/
2543 static ssize_t
2544 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
2545 loff_t *ppos)
2546 {
2547 struct lpfc_debug *debug = file->private_data;
2548 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2549 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
2550 int where, count;
2551 char *pbuffer;
2552 struct pci_dev *pdev;
2553 uint32_t u32val;
2554 uint16_t u16val;
2555 uint8_t u8val;
2556
2557 pdev = phba->pcidev;
2558 if (!pdev)
2559 return 0;
2560
2561 /* This is a user read operation */
2562 debug->op = LPFC_IDIAG_OP_RD;
2563
2564 if (!debug->buffer)
2565 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
2566 if (!debug->buffer)
2567 return 0;
2568 pbuffer = debug->buffer;
2569
2570 if (*ppos)
2571 return 0;
2572
2573 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
2574 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
2575 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
2576 } else
2577 return 0;
2578
2579 /* Read single PCI config space register */
2580 switch (count) {
2581 case SIZE_U8: /* byte (8 bits) */
2582 pci_read_config_byte(pdev, where, &u8val);
2583 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
2584 "%03x: %02x\n", where, u8val);
2585 break;
2586 case SIZE_U16: /* word (16 bits) */
2587 pci_read_config_word(pdev, where, &u16val);
2588 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
2589 "%03x: %04x\n", where, u16val);
2590 break;
2591 case SIZE_U32: /* double word (32 bits) */
2592 pci_read_config_dword(pdev, where, &u32val);
2593 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
2594 "%03x: %08x\n", where, u32val);
2595 break;
2596 case LPFC_PCI_CFG_BROWSE: /* browse all */
2597 goto pcicfg_browse;
2598 break;
2599 default:
2600 /* illegal count */
2601 len = 0;
2602 break;
2603 }
2604 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2605
2606 pcicfg_browse:
2607
2608 /* Browse all PCI config space registers */
2609 offset_label = idiag.offset.last_rd;
2610 offset = offset_label;
2611
2612 /* Read PCI config space */
2613 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
2614 "%03x: ", offset_label);
2615 while (index > 0) {
2616 pci_read_config_dword(pdev, offset, &u32val);
2617 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
2618 "%08x ", u32val);
2619 offset += sizeof(uint32_t);
2620 if (offset >= LPFC_PCI_CFG_SIZE) {
2621 len += snprintf(pbuffer+len,
2622 LPFC_PCI_CFG_SIZE-len, "\n");
2623 break;
2624 }
2625 index -= sizeof(uint32_t);
2626 if (!index)
2627 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
2628 "\n");
2629 else if (!(index % (8 * sizeof(uint32_t)))) {
2630 offset_label += (8 * sizeof(uint32_t));
2631 len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
2632 "\n%03x: ", offset_label);
2633 }
2634 }
2635
2636 /* Set up the offset for next portion of pci cfg read */
2637 if (index == 0) {
2638 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
2639 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
2640 idiag.offset.last_rd = 0;
2641 } else
2642 idiag.offset.last_rd = 0;
2643
2644 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2645 }
2646
2647 /**
2648 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
2649 * @file: The file pointer to read from.
2650 * @buf: The buffer to copy the user data from.
2651 * @nbytes: The number of bytes to get.
2652 * @ppos: The position in the file to start reading from.
2653 *
2654 * This routine get the debugfs idiag command struct from user space and
2655 * then perform the syntax check for PCI config space read or write command
2656 * accordingly. In the case of PCI config space read command, it sets up
2657 * the command in the idiag command struct for the debugfs read operation.
2658 * In the case of PCI config space write operation, it executes the write
2659 * operation into the PCI config space accordingly.
2660 *
2661 * It returns the @nbytges passing in from debugfs user space when successful.
2662 * In case of error conditions, it returns proper error code back to the user
2663 * space.
2664 */
2665 static ssize_t
2666 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
2667 size_t nbytes, loff_t *ppos)
2668 {
2669 struct lpfc_debug *debug = file->private_data;
2670 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2671 uint32_t where, value, count;
2672 uint32_t u32val;
2673 uint16_t u16val;
2674 uint8_t u8val;
2675 struct pci_dev *pdev;
2676 int rc;
2677
2678 pdev = phba->pcidev;
2679 if (!pdev)
2680 return -EFAULT;
2681
2682 /* This is a user write operation */
2683 debug->op = LPFC_IDIAG_OP_WR;
2684
2685 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
2686 if (rc < 0)
2687 return rc;
2688
2689 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
2690 /* Sanity check on PCI config read command line arguments */
2691 if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
2692 goto error_out;
2693 /* Read command from PCI config space, set up command fields */
2694 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
2695 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
2696 if (count == LPFC_PCI_CFG_BROWSE) {
2697 if (where % sizeof(uint32_t))
2698 goto error_out;
2699 /* Starting offset to browse */
2700 idiag.offset.last_rd = where;
2701 } else if ((count != sizeof(uint8_t)) &&
2702 (count != sizeof(uint16_t)) &&
2703 (count != sizeof(uint32_t)))
2704 goto error_out;
2705 if (count == sizeof(uint8_t)) {
2706 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
2707 goto error_out;
2708 if (where % sizeof(uint8_t))
2709 goto error_out;
2710 }
2711 if (count == sizeof(uint16_t)) {
2712 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
2713 goto error_out;
2714 if (where % sizeof(uint16_t))
2715 goto error_out;
2716 }
2717 if (count == sizeof(uint32_t)) {
2718 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
2719 goto error_out;
2720 if (where % sizeof(uint32_t))
2721 goto error_out;
2722 }
2723 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
2724 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
2725 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
2726 /* Sanity check on PCI config write command line arguments */
2727 if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
2728 goto error_out;
2729 /* Write command to PCI config space, read-modify-write */
2730 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
2731 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
2732 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX];
2733 /* Sanity checks */
2734 if ((count != sizeof(uint8_t)) &&
2735 (count != sizeof(uint16_t)) &&
2736 (count != sizeof(uint32_t)))
2737 goto error_out;
2738 if (count == sizeof(uint8_t)) {
2739 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
2740 goto error_out;
2741 if (where % sizeof(uint8_t))
2742 goto error_out;
2743 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
2744 pci_write_config_byte(pdev, where,
2745 (uint8_t)value);
2746 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
2747 rc = pci_read_config_byte(pdev, where, &u8val);
2748 if (!rc) {
2749 u8val |= (uint8_t)value;
2750 pci_write_config_byte(pdev, where,
2751 u8val);
2752 }
2753 }
2754 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
2755 rc = pci_read_config_byte(pdev, where, &u8val);
2756 if (!rc) {
2757 u8val &= (uint8_t)(~value);
2758 pci_write_config_byte(pdev, where,
2759 u8val);
2760 }
2761 }
2762 }
2763 if (count == sizeof(uint16_t)) {
2764 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
2765 goto error_out;
2766 if (where % sizeof(uint16_t))
2767 goto error_out;
2768 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
2769 pci_write_config_word(pdev, where,
2770 (uint16_t)value);
2771 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
2772 rc = pci_read_config_word(pdev, where, &u16val);
2773 if (!rc) {
2774 u16val |= (uint16_t)value;
2775 pci_write_config_word(pdev, where,
2776 u16val);
2777 }
2778 }
2779 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
2780 rc = pci_read_config_word(pdev, where, &u16val);
2781 if (!rc) {
2782 u16val &= (uint16_t)(~value);
2783 pci_write_config_word(pdev, where,
2784 u16val);
2785 }
2786 }
2787 }
2788 if (count == sizeof(uint32_t)) {
2789 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
2790 goto error_out;
2791 if (where % sizeof(uint32_t))
2792 goto error_out;
2793 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
2794 pci_write_config_dword(pdev, where, value);
2795 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
2796 rc = pci_read_config_dword(pdev, where,
2797 &u32val);
2798 if (!rc) {
2799 u32val |= value;
2800 pci_write_config_dword(pdev, where,
2801 u32val);
2802 }
2803 }
2804 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
2805 rc = pci_read_config_dword(pdev, where,
2806 &u32val);
2807 if (!rc) {
2808 u32val &= ~value;
2809 pci_write_config_dword(pdev, where,
2810 u32val);
2811 }
2812 }
2813 }
2814 } else
2815 /* All other opecodes are illegal for now */
2816 goto error_out;
2817
2818 return nbytes;
2819 error_out:
2820 memset(&idiag, 0, sizeof(idiag));
2821 return -EINVAL;
2822 }
2823
2824 /**
2825 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read
2826 * @file: The file pointer to read from.
2827 * @buf: The buffer to copy the data to.
2828 * @nbytes: The number of bytes to read.
2829 * @ppos: The position in the file to start reading from.
2830 *
2831 * Description:
2832 * This routine reads data from the @phba pci bar memory mapped space
2833 * according to the idiag command, and copies to user @buf.
2834 *
2835 * Returns:
2836 * This function returns the amount of data that was read (this could be less
2837 * than @nbytes if the end of the file was reached) or a negative error value.
2838 **/
2839 static ssize_t
2840 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
2841 loff_t *ppos)
2842 {
2843 struct lpfc_debug *debug = file->private_data;
2844 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2845 int offset_label, offset, offset_run, len = 0, index;
2846 int bar_num, acc_range, bar_size;
2847 char *pbuffer;
2848 void __iomem *mem_mapped_bar;
2849 uint32_t if_type;
2850 struct pci_dev *pdev;
2851 uint32_t u32val;
2852
2853 pdev = phba->pcidev;
2854 if (!pdev)
2855 return 0;
2856
2857 /* This is a user read operation */
2858 debug->op = LPFC_IDIAG_OP_RD;
2859
2860 if (!debug->buffer)
2861 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL);
2862 if (!debug->buffer)
2863 return 0;
2864 pbuffer = debug->buffer;
2865
2866 if (*ppos)
2867 return 0;
2868
2869 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
2870 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
2871 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
2872 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
2873 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
2874 } else
2875 return 0;
2876
2877 if (acc_range == 0)
2878 return 0;
2879
2880 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
2881 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
2882 if (bar_num == IDIAG_BARACC_BAR_0)
2883 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
2884 else if (bar_num == IDIAG_BARACC_BAR_1)
2885 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
2886 else if (bar_num == IDIAG_BARACC_BAR_2)
2887 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
2888 else
2889 return 0;
2890 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
2891 if (bar_num == IDIAG_BARACC_BAR_0)
2892 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
2893 else
2894 return 0;
2895 } else
2896 return 0;
2897
2898 /* Read single PCI bar space register */
2899 if (acc_range == SINGLE_WORD) {
2900 offset_run = offset;
2901 u32val = readl(mem_mapped_bar + offset_run);
2902 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
2903 "%05x: %08x\n", offset_run, u32val);
2904 } else
2905 goto baracc_browse;
2906
2907 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2908
2909 baracc_browse:
2910
2911 /* Browse all PCI bar space registers */
2912 offset_label = idiag.offset.last_rd;
2913 offset_run = offset_label;
2914
2915 /* Read PCI bar memory mapped space */
2916 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
2917 "%05x: ", offset_label);
2918 index = LPFC_PCI_BAR_RD_SIZE;
2919 while (index > 0) {
2920 u32val = readl(mem_mapped_bar + offset_run);
2921 len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
2922 "%08x ", u32val);
2923 offset_run += sizeof(uint32_t);
2924 if (acc_range == LPFC_PCI_BAR_BROWSE) {
2925 if (offset_run >= bar_size) {
2926 len += snprintf(pbuffer+len,
2927 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
2928 break;
2929 }
2930 } else {
2931 if (offset_run >= offset +
2932 (acc_range * sizeof(uint32_t))) {
2933 len += snprintf(pbuffer+len,
2934 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
2935 break;
2936 }
2937 }
2938 index -= sizeof(uint32_t);
2939 if (!index)
2940 len += snprintf(pbuffer+len,
2941 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
2942 else if (!(index % (8 * sizeof(uint32_t)))) {
2943 offset_label += (8 * sizeof(uint32_t));
2944 len += snprintf(pbuffer+len,
2945 LPFC_PCI_BAR_RD_BUF_SIZE-len,
2946 "\n%05x: ", offset_label);
2947 }
2948 }
2949
2950 /* Set up the offset for next portion of pci bar read */
2951 if (index == 0) {
2952 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE;
2953 if (acc_range == LPFC_PCI_BAR_BROWSE) {
2954 if (idiag.offset.last_rd >= bar_size)
2955 idiag.offset.last_rd = 0;
2956 } else {
2957 if (offset_run >= offset +
2958 (acc_range * sizeof(uint32_t)))
2959 idiag.offset.last_rd = offset;
2960 }
2961 } else {
2962 if (acc_range == LPFC_PCI_BAR_BROWSE)
2963 idiag.offset.last_rd = 0;
2964 else
2965 idiag.offset.last_rd = offset;
2966 }
2967
2968 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
2969 }
2970
2971 /**
2972 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
2973 * @file: The file pointer to read from.
2974 * @buf: The buffer to copy the user data from.
2975 * @nbytes: The number of bytes to get.
2976 * @ppos: The position in the file to start reading from.
2977 *
2978 * This routine get the debugfs idiag command struct from user space and
2979 * then perform the syntax check for PCI bar memory mapped space read or
2980 * write command accordingly. In the case of PCI bar memory mapped space
2981 * read command, it sets up the command in the idiag command struct for
2982 * the debugfs read operation. In the case of PCI bar memorpy mapped space
2983 * write operation, it executes the write operation into the PCI bar memory
2984 * mapped space accordingly.
2985 *
2986 * It returns the @nbytges passing in from debugfs user space when successful.
2987 * In case of error conditions, it returns proper error code back to the user
2988 * space.
2989 */
2990 static ssize_t
2991 lpfc_idiag_baracc_write(struct file *file, const char __user *buf,
2992 size_t nbytes, loff_t *ppos)
2993 {
2994 struct lpfc_debug *debug = file->private_data;
2995 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2996 uint32_t bar_num, bar_size, offset, value, acc_range;
2997 struct pci_dev *pdev;
2998 void __iomem *mem_mapped_bar;
2999 uint32_t if_type;
3000 uint32_t u32val;
3001 int rc;
3002
3003 pdev = phba->pcidev;
3004 if (!pdev)
3005 return -EFAULT;
3006
3007 /* This is a user write operation */
3008 debug->op = LPFC_IDIAG_OP_WR;
3009
3010 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3011 if (rc < 0)
3012 return rc;
3013
3014 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
3015 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
3016
3017 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
3018 if ((bar_num != IDIAG_BARACC_BAR_0) &&
3019 (bar_num != IDIAG_BARACC_BAR_1) &&
3020 (bar_num != IDIAG_BARACC_BAR_2))
3021 goto error_out;
3022 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
3023 if (bar_num != IDIAG_BARACC_BAR_0)
3024 goto error_out;
3025 } else
3026 goto error_out;
3027
3028 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
3029 if (bar_num == IDIAG_BARACC_BAR_0) {
3030 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
3031 LPFC_PCI_IF0_BAR0_SIZE;
3032 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
3033 } else if (bar_num == IDIAG_BARACC_BAR_1) {
3034 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
3035 LPFC_PCI_IF0_BAR1_SIZE;
3036 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
3037 } else if (bar_num == IDIAG_BARACC_BAR_2) {
3038 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
3039 LPFC_PCI_IF0_BAR2_SIZE;
3040 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
3041 } else
3042 goto error_out;
3043 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
3044 if (bar_num == IDIAG_BARACC_BAR_0) {
3045 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
3046 LPFC_PCI_IF2_BAR0_SIZE;
3047 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
3048 } else
3049 goto error_out;
3050 } else
3051 goto error_out;
3052
3053 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
3054 if (offset % sizeof(uint32_t))
3055 goto error_out;
3056
3057 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
3058 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
3059 /* Sanity check on PCI config read command line arguments */
3060 if (rc != LPFC_PCI_BAR_RD_CMD_ARG)
3061 goto error_out;
3062 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
3063 if (acc_range == LPFC_PCI_BAR_BROWSE) {
3064 if (offset > bar_size - sizeof(uint32_t))
3065 goto error_out;
3066 /* Starting offset to browse */
3067 idiag.offset.last_rd = offset;
3068 } else if (acc_range > SINGLE_WORD) {
3069 if (offset + acc_range * sizeof(uint32_t) > bar_size)
3070 goto error_out;
3071 /* Starting offset to browse */
3072 idiag.offset.last_rd = offset;
3073 } else if (acc_range != SINGLE_WORD)
3074 goto error_out;
3075 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR ||
3076 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST ||
3077 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
3078 /* Sanity check on PCI bar write command line arguments */
3079 if (rc != LPFC_PCI_BAR_WR_CMD_ARG)
3080 goto error_out;
3081 /* Write command to PCI bar space, read-modify-write */
3082 acc_range = SINGLE_WORD;
3083 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX];
3084 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) {
3085 writel(value, mem_mapped_bar + offset);
3086 readl(mem_mapped_bar + offset);
3087 }
3088 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) {
3089 u32val = readl(mem_mapped_bar + offset);
3090 u32val |= value;
3091 writel(u32val, mem_mapped_bar + offset);
3092 readl(mem_mapped_bar + offset);
3093 }
3094 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
3095 u32val = readl(mem_mapped_bar + offset);
3096 u32val &= ~value;
3097 writel(u32val, mem_mapped_bar + offset);
3098 readl(mem_mapped_bar + offset);
3099 }
3100 } else
3101 /* All other opecodes are illegal for now */
3102 goto error_out;
3103
3104 return nbytes;
3105 error_out:
3106 memset(&idiag, 0, sizeof(idiag));
3107 return -EINVAL;
3108 }
3109
3110 static int
3111 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype,
3112 char *pbuffer, int len)
3113 {
3114 if (!qp)
3115 return len;
3116
3117 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3118 "\t\t%s WQ info: ", wqtype);
3119 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3120 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n",
3121 qp->assoc_qid, qp->q_cnt_1,
3122 (unsigned long long)qp->q_cnt_4);
3123 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3124 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
3125 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]",
3126 qp->queue_id, qp->entry_count,
3127 qp->entry_size, qp->host_index,
3128 qp->hba_index, qp->entry_repost);
3129 len += snprintf(pbuffer + len,
3130 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
3131 return len;
3132 }
3133
3134 static int
3135 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer,
3136 int *len, int max_cnt, int cq_id)
3137 {
3138 struct lpfc_queue *qp;
3139 int qidx;
3140
3141 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
3142 qp = phba->sli4_hba.fcp_wq[qidx];
3143 if (qp->assoc_qid != cq_id)
3144 continue;
3145 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len);
3146 if (*len >= max_cnt)
3147 return 1;
3148 }
3149 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
3150 qp = phba->sli4_hba.nvme_wq[qidx];
3151 if (qp->assoc_qid != cq_id)
3152 continue;
3153 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len);
3154 if (*len >= max_cnt)
3155 return 1;
3156 }
3157 return 0;
3158 }
3159
3160 static int
3161 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype,
3162 char *pbuffer, int len)
3163 {
3164 if (!qp)
3165 return len;
3166
3167 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3168 "\t%s CQ info: ", cqtype);
3169 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3170 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x "
3171 "xabt:x%x wq:x%llx]\n",
3172 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
3173 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
3174 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3175 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
3176 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]",
3177 qp->queue_id, qp->entry_count,
3178 qp->entry_size, qp->host_index,
3179 qp->hba_index, qp->entry_repost);
3180
3181 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
3182
3183 return len;
3184 }
3185
3186 static int
3187 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp,
3188 char *rqtype, char *pbuffer, int len)
3189 {
3190 if (!qp || !datqp)
3191 return len;
3192
3193 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3194 "\t\t%s RQ info: ", rqtype);
3195 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3196 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x "
3197 "posted:x%x rcv:x%llx]\n",
3198 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
3199 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
3200 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3201 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
3202 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]\n",
3203 qp->queue_id, qp->entry_count, qp->entry_size,
3204 qp->host_index, qp->hba_index, qp->entry_repost);
3205 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3206 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
3207 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]\n",
3208 datqp->queue_id, datqp->entry_count,
3209 datqp->entry_size, datqp->host_index,
3210 datqp->hba_index, datqp->entry_repost);
3211 return len;
3212 }
3213
3214 static int
3215 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer,
3216 int *len, int max_cnt, int eqidx, int eq_id)
3217 {
3218 struct lpfc_queue *qp;
3219 int qidx, rc;
3220
3221 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
3222 qp = phba->sli4_hba.fcp_cq[qidx];
3223 if (qp->assoc_qid != eq_id)
3224 continue;
3225
3226 *len = __lpfc_idiag_print_cq(qp, "FCP", pbuffer, *len);
3227
3228 /* Reset max counter */
3229 qp->CQ_max_cqe = 0;
3230
3231 if (*len >= max_cnt)
3232 return 1;
3233
3234 rc = lpfc_idiag_wqs_for_cq(phba, "FCP", pbuffer, len,
3235 max_cnt, qp->queue_id);
3236 if (rc)
3237 return 1;
3238 }
3239
3240 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
3241 qp = phba->sli4_hba.nvme_cq[qidx];
3242 if (qp->assoc_qid != eq_id)
3243 continue;
3244
3245 *len = __lpfc_idiag_print_cq(qp, "NVME", pbuffer, *len);
3246
3247 /* Reset max counter */
3248 qp->CQ_max_cqe = 0;
3249
3250 if (*len >= max_cnt)
3251 return 1;
3252
3253 rc = lpfc_idiag_wqs_for_cq(phba, "NVME", pbuffer, len,
3254 max_cnt, qp->queue_id);
3255 if (rc)
3256 return 1;
3257 }
3258
3259 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) {
3260 /* NVMET CQset */
3261 qp = phba->sli4_hba.nvmet_cqset[eqidx];
3262 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len);
3263
3264 /* Reset max counter */
3265 qp->CQ_max_cqe = 0;
3266
3267 if (*len >= max_cnt)
3268 return 1;
3269
3270 /* RQ header */
3271 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx];
3272 *len = __lpfc_idiag_print_rqpair(qp,
3273 phba->sli4_hba.nvmet_mrq_data[eqidx],
3274 "NVMET MRQ", pbuffer, *len);
3275
3276 if (*len >= max_cnt)
3277 return 1;
3278 }
3279
3280 return 0;
3281 }
3282
3283 static int
3284 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype,
3285 char *pbuffer, int len)
3286 {
3287 if (!qp)
3288 return len;
3289
3290 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3291 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x "
3292 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n",
3293 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3,
3294 (unsigned long long)qp->q_cnt_4, qp->q_mode);
3295 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3296 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
3297 "HST-IDX[%04d], PRT-IDX[%04d], PST[%03d]",
3298 qp->queue_id, qp->entry_count, qp->entry_size,
3299 qp->host_index, qp->hba_index, qp->entry_repost);
3300 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
3301
3302 return len;
3303 }
3304
3305 /**
3306 * lpfc_idiag_queinfo_read - idiag debugfs read queue information
3307 * @file: The file pointer to read from.
3308 * @buf: The buffer to copy the data to.
3309 * @nbytes: The number of bytes to read.
3310 * @ppos: The position in the file to start reading from.
3311 *
3312 * Description:
3313 * This routine reads data from the @phba SLI4 PCI function queue information,
3314 * and copies to user @buf.
3315 * This routine only returns 1 EQs worth of information. It remembers the last
3316 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will
3317 * retrieve all EQs allocated for the phba.
3318 *
3319 * Returns:
3320 * This function returns the amount of data that was read (this could be less
3321 * than @nbytes if the end of the file was reached) or a negative error value.
3322 **/
3323 static ssize_t
3324 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
3325 loff_t *ppos)
3326 {
3327 struct lpfc_debug *debug = file->private_data;
3328 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3329 char *pbuffer;
3330 int max_cnt, rc, x, len = 0;
3331 struct lpfc_queue *qp = NULL;
3332
3333 if (!debug->buffer)
3334 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
3335 if (!debug->buffer)
3336 return 0;
3337 pbuffer = debug->buffer;
3338 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256;
3339
3340 if (*ppos)
3341 return 0;
3342
3343 spin_lock_irq(&phba->hbalock);
3344
3345 /* Fast-path event queue */
3346 if (phba->sli4_hba.hba_eq && phba->io_channel_irqs) {
3347
3348 x = phba->lpfc_idiag_last_eq;
3349 if (phba->cfg_fof && (x >= phba->io_channel_irqs)) {
3350 phba->lpfc_idiag_last_eq = 0;
3351 goto fof;
3352 }
3353 phba->lpfc_idiag_last_eq++;
3354 if (phba->lpfc_idiag_last_eq >= phba->io_channel_irqs)
3355 if (phba->cfg_fof == 0)
3356 phba->lpfc_idiag_last_eq = 0;
3357
3358 len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3359 "EQ %d out of %d HBA EQs\n",
3360 x, phba->io_channel_irqs);
3361
3362 /* Fast-path EQ */
3363 qp = phba->sli4_hba.hba_eq[x];
3364 if (!qp)
3365 goto out;
3366
3367 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len);
3368
3369 /* Reset max counter */
3370 qp->EQ_max_eqe = 0;
3371
3372 if (len >= max_cnt)
3373 goto too_big;
3374
3375 /* will dump both fcp and nvme cqs/wqs for the eq */
3376 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len,
3377 max_cnt, x, qp->queue_id);
3378 if (rc)
3379 goto too_big;
3380
3381 /* Only EQ 0 has slow path CQs configured */
3382 if (x)
3383 goto out;
3384
3385 /* Slow-path mailbox CQ */
3386 qp = phba->sli4_hba.mbx_cq;
3387 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len);
3388 if (len >= max_cnt)
3389 goto too_big;
3390
3391 /* Slow-path MBOX MQ */
3392 qp = phba->sli4_hba.mbx_wq;
3393 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len);
3394 if (len >= max_cnt)
3395 goto too_big;
3396
3397 /* Slow-path ELS response CQ */
3398 qp = phba->sli4_hba.els_cq;
3399 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len);
3400 /* Reset max counter */
3401 if (qp)
3402 qp->CQ_max_cqe = 0;
3403 if (len >= max_cnt)
3404 goto too_big;
3405
3406 /* Slow-path ELS WQ */
3407 qp = phba->sli4_hba.els_wq;
3408 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len);
3409 if (len >= max_cnt)
3410 goto too_big;
3411
3412 qp = phba->sli4_hba.hdr_rq;
3413 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq,
3414 "ELS RQpair", pbuffer, len);
3415 if (len >= max_cnt)
3416 goto too_big;
3417
3418 /* Slow-path NVME LS response CQ */
3419 qp = phba->sli4_hba.nvmels_cq;
3420 len = __lpfc_idiag_print_cq(qp, "NVME LS",
3421 pbuffer, len);
3422 /* Reset max counter */
3423 if (qp)
3424 qp->CQ_max_cqe = 0;
3425 if (len >= max_cnt)
3426 goto too_big;
3427
3428 /* Slow-path NVME LS WQ */
3429 qp = phba->sli4_hba.nvmels_wq;
3430 len = __lpfc_idiag_print_wq(qp, "NVME LS",
3431 pbuffer, len);
3432 if (len >= max_cnt)
3433 goto too_big;
3434
3435 goto out;
3436 }
3437
3438 fof:
3439 if (phba->cfg_fof) {
3440 /* FOF EQ */
3441 qp = phba->sli4_hba.fof_eq;
3442 len = __lpfc_idiag_print_eq(qp, "FOF", pbuffer, len);
3443
3444 /* Reset max counter */
3445 if (qp)
3446 qp->EQ_max_eqe = 0;
3447
3448 if (len >= max_cnt)
3449 goto too_big;
3450
3451 /* OAS CQ */
3452 qp = phba->sli4_hba.oas_cq;
3453 len = __lpfc_idiag_print_cq(qp, "OAS", pbuffer, len);
3454 /* Reset max counter */
3455 if (qp)
3456 qp->CQ_max_cqe = 0;
3457 if (len >= max_cnt)
3458 goto too_big;
3459
3460 /* OAS WQ */
3461 qp = phba->sli4_hba.oas_wq;
3462 len = __lpfc_idiag_print_wq(qp, "OAS", pbuffer, len);
3463 if (len >= max_cnt)
3464 goto too_big;
3465 }
3466
3467 spin_unlock_irq(&phba->hbalock);
3468 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3469
3470 too_big:
3471 len += snprintf(pbuffer + len,
3472 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n");
3473 out:
3474 spin_unlock_irq(&phba->hbalock);
3475 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3476 }
3477
3478 /**
3479 * lpfc_idiag_que_param_check - queue access command parameter sanity check
3480 * @q: The pointer to queue structure.
3481 * @index: The index into a queue entry.
3482 * @count: The number of queue entries to access.
3483 *
3484 * Description:
3485 * The routine performs sanity check on device queue access method commands.
3486 *
3487 * Returns:
3488 * This function returns -EINVAL when fails the sanity check, otherwise, it
3489 * returns 0.
3490 **/
3491 static int
3492 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count)
3493 {
3494 /* Only support single entry read or browsing */
3495 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE))
3496 return -EINVAL;
3497 if (index > q->entry_count - 1)
3498 return -EINVAL;
3499 return 0;
3500 }
3501
3502 /**
3503 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
3504 * @pbuffer: The pointer to buffer to copy the read data into.
3505 * @pque: The pointer to the queue to be read.
3506 * @index: The index into the queue entry.
3507 *
3508 * Description:
3509 * This routine reads out a single entry from the given queue's index location
3510 * and copies it into the buffer provided.
3511 *
3512 * Returns:
3513 * This function returns 0 when it fails, otherwise, it returns the length of
3514 * the data read into the buffer provided.
3515 **/
3516 static int
3517 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
3518 uint32_t index)
3519 {
3520 int offset, esize;
3521 uint32_t *pentry;
3522
3523 if (!pbuffer || !pque)
3524 return 0;
3525
3526 esize = pque->entry_size;
3527 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
3528 "QE-INDEX[%04d]:\n", index);
3529
3530 offset = 0;
3531 pentry = pque->qe[index].address;
3532 while (esize > 0) {
3533 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
3534 "%08x ", *pentry);
3535 pentry++;
3536 offset += sizeof(uint32_t);
3537 esize -= sizeof(uint32_t);
3538 if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
3539 len += snprintf(pbuffer+len,
3540 LPFC_QUE_ACC_BUF_SIZE-len, "\n");
3541 }
3542 len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
3543
3544 return len;
3545 }
3546
3547 /**
3548 * lpfc_idiag_queacc_read - idiag debugfs read port queue
3549 * @file: The file pointer to read from.
3550 * @buf: The buffer to copy the data to.
3551 * @nbytes: The number of bytes to read.
3552 * @ppos: The position in the file to start reading from.
3553 *
3554 * Description:
3555 * This routine reads data from the @phba device queue memory according to the
3556 * idiag command, and copies to user @buf. Depending on the queue dump read
3557 * command setup, it does either a single queue entry read or browing through
3558 * all entries of the queue.
3559 *
3560 * Returns:
3561 * This function returns the amount of data that was read (this could be less
3562 * than @nbytes if the end of the file was reached) or a negative error value.
3563 **/
3564 static ssize_t
3565 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes,
3566 loff_t *ppos)
3567 {
3568 struct lpfc_debug *debug = file->private_data;
3569 uint32_t last_index, index, count;
3570 struct lpfc_queue *pque = NULL;
3571 char *pbuffer;
3572 int len = 0;
3573
3574 /* This is a user read operation */
3575 debug->op = LPFC_IDIAG_OP_RD;
3576
3577 if (!debug->buffer)
3578 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL);
3579 if (!debug->buffer)
3580 return 0;
3581 pbuffer = debug->buffer;
3582
3583 if (*ppos)
3584 return 0;
3585
3586 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
3587 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
3588 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
3589 pque = (struct lpfc_queue *)idiag.ptr_private;
3590 } else
3591 return 0;
3592
3593 /* Browse the queue starting from index */
3594 if (count == LPFC_QUE_ACC_BROWSE)
3595 goto que_browse;
3596
3597 /* Read a single entry from the queue */
3598 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
3599
3600 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3601
3602 que_browse:
3603
3604 /* Browse all entries from the queue */
3605 last_index = idiag.offset.last_rd;
3606 index = last_index;
3607
3608 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) {
3609 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
3610 index++;
3611 if (index > pque->entry_count - 1)
3612 break;
3613 }
3614
3615 /* Set up the offset for next portion of pci cfg read */
3616 if (index > pque->entry_count - 1)
3617 index = 0;
3618 idiag.offset.last_rd = index;
3619
3620 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3621 }
3622
3623 /**
3624 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
3625 * @file: The file pointer to read from.
3626 * @buf: The buffer to copy the user data from.
3627 * @nbytes: The number of bytes to get.
3628 * @ppos: The position in the file to start reading from.
3629 *
3630 * This routine get the debugfs idiag command struct from user space and then
3631 * perform the syntax check for port queue read (dump) or write (set) command
3632 * accordingly. In the case of port queue read command, it sets up the command
3633 * in the idiag command struct for the following debugfs read operation. In
3634 * the case of port queue write operation, it executes the write operation
3635 * into the port queue entry accordingly.
3636 *
3637 * It returns the @nbytges passing in from debugfs user space when successful.
3638 * In case of error conditions, it returns proper error code back to the user
3639 * space.
3640 **/
3641 static ssize_t
3642 lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
3643 size_t nbytes, loff_t *ppos)
3644 {
3645 struct lpfc_debug *debug = file->private_data;
3646 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3647 uint32_t qidx, quetp, queid, index, count, offset, value;
3648 uint32_t *pentry;
3649 struct lpfc_queue *pque, *qp;
3650 int rc;
3651
3652 /* This is a user write operation */
3653 debug->op = LPFC_IDIAG_OP_WR;
3654
3655 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3656 if (rc < 0)
3657 return rc;
3658
3659 /* Get and sanity check on command feilds */
3660 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX];
3661 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX];
3662 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
3663 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
3664 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX];
3665 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX];
3666
3667 /* Sanity check on command line arguments */
3668 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
3669 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
3670 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
3671 if (rc != LPFC_QUE_ACC_WR_CMD_ARG)
3672 goto error_out;
3673 if (count != 1)
3674 goto error_out;
3675 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
3676 if (rc != LPFC_QUE_ACC_RD_CMD_ARG)
3677 goto error_out;
3678 } else
3679 goto error_out;
3680
3681 switch (quetp) {
3682 case LPFC_IDIAG_EQ:
3683 /* HBA event queue */
3684 if (phba->sli4_hba.hba_eq) {
3685 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) {
3686 qp = phba->sli4_hba.hba_eq[qidx];
3687 if (qp && qp->queue_id == queid) {
3688 /* Sanity check */
3689 rc = lpfc_idiag_que_param_check(qp,
3690 index, count);
3691 if (rc)
3692 goto error_out;
3693 idiag.ptr_private = qp;
3694 goto pass_check;
3695 }
3696 }
3697 }
3698 goto error_out;
3699 break;
3700 case LPFC_IDIAG_CQ:
3701 /* MBX complete queue */
3702 if (phba->sli4_hba.mbx_cq &&
3703 phba->sli4_hba.mbx_cq->queue_id == queid) {
3704 /* Sanity check */
3705 rc = lpfc_idiag_que_param_check(
3706 phba->sli4_hba.mbx_cq, index, count);
3707 if (rc)
3708 goto error_out;
3709 idiag.ptr_private = phba->sli4_hba.mbx_cq;
3710 goto pass_check;
3711 }
3712 /* ELS complete queue */
3713 if (phba->sli4_hba.els_cq &&
3714 phba->sli4_hba.els_cq->queue_id == queid) {
3715 /* Sanity check */
3716 rc = lpfc_idiag_que_param_check(
3717 phba->sli4_hba.els_cq, index, count);
3718 if (rc)
3719 goto error_out;
3720 idiag.ptr_private = phba->sli4_hba.els_cq;
3721 goto pass_check;
3722 }
3723 /* NVME LS complete queue */
3724 if (phba->sli4_hba.nvmels_cq &&
3725 phba->sli4_hba.nvmels_cq->queue_id == queid) {
3726 /* Sanity check */
3727 rc = lpfc_idiag_que_param_check(
3728 phba->sli4_hba.nvmels_cq, index, count);
3729 if (rc)
3730 goto error_out;
3731 idiag.ptr_private = phba->sli4_hba.nvmels_cq;
3732 goto pass_check;
3733 }
3734 /* FCP complete queue */
3735 if (phba->sli4_hba.fcp_cq) {
3736 for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
3737 qidx++) {
3738 qp = phba->sli4_hba.fcp_cq[qidx];
3739 if (qp && qp->queue_id == queid) {
3740 /* Sanity check */
3741 rc = lpfc_idiag_que_param_check(
3742 qp, index, count);
3743 if (rc)
3744 goto error_out;
3745 idiag.ptr_private = qp;
3746 goto pass_check;
3747 }
3748 }
3749 }
3750 /* NVME complete queue */
3751 if (phba->sli4_hba.nvme_cq) {
3752 qidx = 0;
3753 do {
3754 if (phba->sli4_hba.nvme_cq[qidx] &&
3755 phba->sli4_hba.nvme_cq[qidx]->queue_id ==
3756 queid) {
3757 /* Sanity check */
3758 rc = lpfc_idiag_que_param_check(
3759 phba->sli4_hba.nvme_cq[qidx],
3760 index, count);
3761 if (rc)
3762 goto error_out;
3763 idiag.ptr_private =
3764 phba->sli4_hba.nvme_cq[qidx];
3765 goto pass_check;
3766 }
3767 } while (++qidx < phba->cfg_nvme_io_channel);
3768 }
3769 goto error_out;
3770 break;
3771 case LPFC_IDIAG_MQ:
3772 /* MBX work queue */
3773 if (phba->sli4_hba.mbx_wq &&
3774 phba->sli4_hba.mbx_wq->queue_id == queid) {
3775 /* Sanity check */
3776 rc = lpfc_idiag_que_param_check(
3777 phba->sli4_hba.mbx_wq, index, count);
3778 if (rc)
3779 goto error_out;
3780 idiag.ptr_private = phba->sli4_hba.mbx_wq;
3781 goto pass_check;
3782 }
3783 goto error_out;
3784 break;
3785 case LPFC_IDIAG_WQ:
3786 /* ELS work queue */
3787 if (phba->sli4_hba.els_wq &&
3788 phba->sli4_hba.els_wq->queue_id == queid) {
3789 /* Sanity check */
3790 rc = lpfc_idiag_que_param_check(
3791 phba->sli4_hba.els_wq, index, count);
3792 if (rc)
3793 goto error_out;
3794 idiag.ptr_private = phba->sli4_hba.els_wq;
3795 goto pass_check;
3796 }
3797 /* NVME LS work queue */
3798 if (phba->sli4_hba.nvmels_wq &&
3799 phba->sli4_hba.nvmels_wq->queue_id == queid) {
3800 /* Sanity check */
3801 rc = lpfc_idiag_que_param_check(
3802 phba->sli4_hba.nvmels_wq, index, count);
3803 if (rc)
3804 goto error_out;
3805 idiag.ptr_private = phba->sli4_hba.nvmels_wq;
3806 goto pass_check;
3807 }
3808 /* FCP work queue */
3809 if (phba->sli4_hba.fcp_wq) {
3810 for (qidx = 0; qidx < phba->cfg_fcp_io_channel;
3811 qidx++) {
3812 qp = phba->sli4_hba.fcp_wq[qidx];
3813 if (qp && qp->queue_id == queid) {
3814 /* Sanity check */
3815 rc = lpfc_idiag_que_param_check(
3816 qp, index, count);
3817 if (rc)
3818 goto error_out;
3819 idiag.ptr_private = qp;
3820 goto pass_check;
3821 }
3822 }
3823 }
3824 /* NVME work queue */
3825 if (phba->sli4_hba.nvme_wq) {
3826 for (qidx = 0; qidx < phba->cfg_nvme_io_channel;
3827 qidx++) {
3828 qp = phba->sli4_hba.nvme_wq[qidx];
3829 if (qp && qp->queue_id == queid) {
3830 /* Sanity check */
3831 rc = lpfc_idiag_que_param_check(
3832 qp, index, count);
3833 if (rc)
3834 goto error_out;
3835 idiag.ptr_private = qp;
3836 goto pass_check;
3837 }
3838 }
3839 }
3840
3841 /* NVME work queues */
3842 if (phba->sli4_hba.nvme_wq) {
3843 for (qidx = 0; qidx < phba->cfg_nvme_io_channel;
3844 qidx++) {
3845 if (!phba->sli4_hba.nvme_wq[qidx])
3846 continue;
3847 if (phba->sli4_hba.nvme_wq[qidx]->queue_id ==
3848 queid) {
3849 /* Sanity check */
3850 rc = lpfc_idiag_que_param_check(
3851 phba->sli4_hba.nvme_wq[qidx],
3852 index, count);
3853 if (rc)
3854 goto error_out;
3855 idiag.ptr_private =
3856 phba->sli4_hba.nvme_wq[qidx];
3857 goto pass_check;
3858 }
3859 }
3860 }
3861 goto error_out;
3862 break;
3863 case LPFC_IDIAG_RQ:
3864 /* HDR queue */
3865 if (phba->sli4_hba.hdr_rq &&
3866 phba->sli4_hba.hdr_rq->queue_id == queid) {
3867 /* Sanity check */
3868 rc = lpfc_idiag_que_param_check(
3869 phba->sli4_hba.hdr_rq, index, count);
3870 if (rc)
3871 goto error_out;
3872 idiag.ptr_private = phba->sli4_hba.hdr_rq;
3873 goto pass_check;
3874 }
3875 /* DAT queue */
3876 if (phba->sli4_hba.dat_rq &&
3877 phba->sli4_hba.dat_rq->queue_id == queid) {
3878 /* Sanity check */
3879 rc = lpfc_idiag_que_param_check(
3880 phba->sli4_hba.dat_rq, index, count);
3881 if (rc)
3882 goto error_out;
3883 idiag.ptr_private = phba->sli4_hba.dat_rq;
3884 goto pass_check;
3885 }
3886 goto error_out;
3887 break;
3888 default:
3889 goto error_out;
3890 break;
3891 }
3892
3893 pass_check:
3894
3895 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
3896 if (count == LPFC_QUE_ACC_BROWSE)
3897 idiag.offset.last_rd = index;
3898 }
3899
3900 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
3901 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
3902 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
3903 /* Additional sanity checks on write operation */
3904 pque = (struct lpfc_queue *)idiag.ptr_private;
3905 if (offset > pque->entry_size/sizeof(uint32_t) - 1)
3906 goto error_out;
3907 pentry = pque->qe[index].address;
3908 pentry += offset;
3909 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR)
3910 *pentry = value;
3911 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST)
3912 *pentry |= value;
3913 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL)
3914 *pentry &= ~value;
3915 }
3916 return nbytes;
3917
3918 error_out:
3919 /* Clean out command structure on command error out */
3920 memset(&idiag, 0, sizeof(idiag));
3921 return -EINVAL;
3922 }
3923
3924 /**
3925 * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register
3926 * @phba: The pointer to hba structure.
3927 * @pbuffer: The pointer to the buffer to copy the data to.
3928 * @len: The lenght of bytes to copied.
3929 * @drbregid: The id to doorbell registers.
3930 *
3931 * Description:
3932 * This routine reads a doorbell register and copies its content to the
3933 * user buffer pointed to by @pbuffer.
3934 *
3935 * Returns:
3936 * This function returns the amount of data that was copied into @pbuffer.
3937 **/
3938 static int
3939 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
3940 int len, uint32_t drbregid)
3941 {
3942
3943 if (!pbuffer)
3944 return 0;
3945
3946 switch (drbregid) {
3947 case LPFC_DRB_EQCQ:
3948 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
3949 "EQCQ-DRB-REG: 0x%08x\n",
3950 readl(phba->sli4_hba.EQCQDBregaddr));
3951 break;
3952 case LPFC_DRB_MQ:
3953 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
3954 "MQ-DRB-REG: 0x%08x\n",
3955 readl(phba->sli4_hba.MQDBregaddr));
3956 break;
3957 case LPFC_DRB_WQ:
3958 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
3959 "WQ-DRB-REG: 0x%08x\n",
3960 readl(phba->sli4_hba.WQDBregaddr));
3961 break;
3962 case LPFC_DRB_RQ:
3963 len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
3964 "RQ-DRB-REG: 0x%08x\n",
3965 readl(phba->sli4_hba.RQDBregaddr));
3966 break;
3967 default:
3968 break;
3969 }
3970
3971 return len;
3972 }
3973
3974 /**
3975 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
3976 * @file: The file pointer to read from.
3977 * @buf: The buffer to copy the data to.
3978 * @nbytes: The number of bytes to read.
3979 * @ppos: The position in the file to start reading from.
3980 *
3981 * Description:
3982 * This routine reads data from the @phba device doorbell register according
3983 * to the idiag command, and copies to user @buf. Depending on the doorbell
3984 * register read command setup, it does either a single doorbell register
3985 * read or dump all doorbell registers.
3986 *
3987 * Returns:
3988 * This function returns the amount of data that was read (this could be less
3989 * than @nbytes if the end of the file was reached) or a negative error value.
3990 **/
3991 static ssize_t
3992 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes,
3993 loff_t *ppos)
3994 {
3995 struct lpfc_debug *debug = file->private_data;
3996 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3997 uint32_t drb_reg_id, i;
3998 char *pbuffer;
3999 int len = 0;
4000
4001 /* This is a user read operation */
4002 debug->op = LPFC_IDIAG_OP_RD;
4003
4004 if (!debug->buffer)
4005 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL);
4006 if (!debug->buffer)
4007 return 0;
4008 pbuffer = debug->buffer;
4009
4010 if (*ppos)
4011 return 0;
4012
4013 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
4014 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
4015 else
4016 return 0;
4017
4018 if (drb_reg_id == LPFC_DRB_ACC_ALL)
4019 for (i = 1; i <= LPFC_DRB_MAX; i++)
4020 len = lpfc_idiag_drbacc_read_reg(phba,
4021 pbuffer, len, i);
4022 else
4023 len = lpfc_idiag_drbacc_read_reg(phba,
4024 pbuffer, len, drb_reg_id);
4025
4026 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
4027 }
4028
4029 /**
4030 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
4031 * @file: The file pointer to read from.
4032 * @buf: The buffer to copy the user data from.
4033 * @nbytes: The number of bytes to get.
4034 * @ppos: The position in the file to start reading from.
4035 *
4036 * This routine get the debugfs idiag command struct from user space and then
4037 * perform the syntax check for port doorbell register read (dump) or write
4038 * (set) command accordingly. In the case of port queue read command, it sets
4039 * up the command in the idiag command struct for the following debugfs read
4040 * operation. In the case of port doorbell register write operation, it
4041 * executes the write operation into the port doorbell register accordingly.
4042 *
4043 * It returns the @nbytges passing in from debugfs user space when successful.
4044 * In case of error conditions, it returns proper error code back to the user
4045 * space.
4046 **/
4047 static ssize_t
4048 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf,
4049 size_t nbytes, loff_t *ppos)
4050 {
4051 struct lpfc_debug *debug = file->private_data;
4052 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
4053 uint32_t drb_reg_id, value, reg_val = 0;
4054 void __iomem *drb_reg;
4055 int rc;
4056
4057 /* This is a user write operation */
4058 debug->op = LPFC_IDIAG_OP_WR;
4059
4060 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
4061 if (rc < 0)
4062 return rc;
4063
4064 /* Sanity check on command line arguments */
4065 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
4066 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX];
4067
4068 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
4069 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
4070 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
4071 if (rc != LPFC_DRB_ACC_WR_CMD_ARG)
4072 goto error_out;
4073 if (drb_reg_id > LPFC_DRB_MAX)
4074 goto error_out;
4075 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) {
4076 if (rc != LPFC_DRB_ACC_RD_CMD_ARG)
4077 goto error_out;
4078 if ((drb_reg_id > LPFC_DRB_MAX) &&
4079 (drb_reg_id != LPFC_DRB_ACC_ALL))
4080 goto error_out;
4081 } else
4082 goto error_out;
4083
4084 /* Perform the write access operation */
4085 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
4086 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
4087 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
4088 switch (drb_reg_id) {
4089 case LPFC_DRB_EQCQ:
4090 drb_reg = phba->sli4_hba.EQCQDBregaddr;
4091 break;
4092 case LPFC_DRB_MQ:
4093 drb_reg = phba->sli4_hba.MQDBregaddr;
4094 break;
4095 case LPFC_DRB_WQ:
4096 drb_reg = phba->sli4_hba.WQDBregaddr;
4097 break;
4098 case LPFC_DRB_RQ:
4099 drb_reg = phba->sli4_hba.RQDBregaddr;
4100 break;
4101 default:
4102 goto error_out;
4103 }
4104
4105 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR)
4106 reg_val = value;
4107 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) {
4108 reg_val = readl(drb_reg);
4109 reg_val |= value;
4110 }
4111 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
4112 reg_val = readl(drb_reg);
4113 reg_val &= ~value;
4114 }
4115 writel(reg_val, drb_reg);
4116 readl(drb_reg); /* flush */
4117 }
4118 return nbytes;
4119
4120 error_out:
4121 /* Clean out command structure on command error out */
4122 memset(&idiag, 0, sizeof(idiag));
4123 return -EINVAL;
4124 }
4125
4126 /**
4127 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
4128 * @phba: The pointer to hba structure.
4129 * @pbuffer: The pointer to the buffer to copy the data to.
4130 * @len: The lenght of bytes to copied.
4131 * @drbregid: The id to doorbell registers.
4132 *
4133 * Description:
4134 * This routine reads a control register and copies its content to the
4135 * user buffer pointed to by @pbuffer.
4136 *
4137 * Returns:
4138 * This function returns the amount of data that was copied into @pbuffer.
4139 **/
4140 static int
4141 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
4142 int len, uint32_t ctlregid)
4143 {
4144
4145 if (!pbuffer)
4146 return 0;
4147
4148 switch (ctlregid) {
4149 case LPFC_CTL_PORT_SEM:
4150 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4151 "Port SemReg: 0x%08x\n",
4152 readl(phba->sli4_hba.conf_regs_memmap_p +
4153 LPFC_CTL_PORT_SEM_OFFSET));
4154 break;
4155 case LPFC_CTL_PORT_STA:
4156 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4157 "Port StaReg: 0x%08x\n",
4158 readl(phba->sli4_hba.conf_regs_memmap_p +
4159 LPFC_CTL_PORT_STA_OFFSET));
4160 break;
4161 case LPFC_CTL_PORT_CTL:
4162 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4163 "Port CtlReg: 0x%08x\n",
4164 readl(phba->sli4_hba.conf_regs_memmap_p +
4165 LPFC_CTL_PORT_CTL_OFFSET));
4166 break;
4167 case LPFC_CTL_PORT_ER1:
4168 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4169 "Port Er1Reg: 0x%08x\n",
4170 readl(phba->sli4_hba.conf_regs_memmap_p +
4171 LPFC_CTL_PORT_ER1_OFFSET));
4172 break;
4173 case LPFC_CTL_PORT_ER2:
4174 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4175 "Port Er2Reg: 0x%08x\n",
4176 readl(phba->sli4_hba.conf_regs_memmap_p +
4177 LPFC_CTL_PORT_ER2_OFFSET));
4178 break;
4179 case LPFC_CTL_PDEV_CTL:
4180 len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4181 "PDev CtlReg: 0x%08x\n",
4182 readl(phba->sli4_hba.conf_regs_memmap_p +
4183 LPFC_CTL_PDEV_CTL_OFFSET));
4184 break;
4185 default:
4186 break;
4187 }
4188 return len;
4189 }
4190
4191 /**
4192 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
4193 * @file: The file pointer to read from.
4194 * @buf: The buffer to copy the data to.
4195 * @nbytes: The number of bytes to read.
4196 * @ppos: The position in the file to start reading from.
4197 *
4198 * Description:
4199 * This routine reads data from the @phba port and device registers according
4200 * to the idiag command, and copies to user @buf.
4201 *
4202 * Returns:
4203 * This function returns the amount of data that was read (this could be less
4204 * than @nbytes if the end of the file was reached) or a negative error value.
4205 **/
4206 static ssize_t
4207 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes,
4208 loff_t *ppos)
4209 {
4210 struct lpfc_debug *debug = file->private_data;
4211 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
4212 uint32_t ctl_reg_id, i;
4213 char *pbuffer;
4214 int len = 0;
4215
4216 /* This is a user read operation */
4217 debug->op = LPFC_IDIAG_OP_RD;
4218
4219 if (!debug->buffer)
4220 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL);
4221 if (!debug->buffer)
4222 return 0;
4223 pbuffer = debug->buffer;
4224
4225 if (*ppos)
4226 return 0;
4227
4228 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD)
4229 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
4230 else
4231 return 0;
4232
4233 if (ctl_reg_id == LPFC_CTL_ACC_ALL)
4234 for (i = 1; i <= LPFC_CTL_MAX; i++)
4235 len = lpfc_idiag_ctlacc_read_reg(phba,
4236 pbuffer, len, i);
4237 else
4238 len = lpfc_idiag_ctlacc_read_reg(phba,
4239 pbuffer, len, ctl_reg_id);
4240
4241 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
4242 }
4243
4244 /**
4245 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
4246 * @file: The file pointer to read from.
4247 * @buf: The buffer to copy the user data from.
4248 * @nbytes: The number of bytes to get.
4249 * @ppos: The position in the file to start reading from.
4250 *
4251 * This routine get the debugfs idiag command struct from user space and then
4252 * perform the syntax check for port and device control register read (dump)
4253 * or write (set) command accordingly.
4254 *
4255 * It returns the @nbytges passing in from debugfs user space when successful.
4256 * In case of error conditions, it returns proper error code back to the user
4257 * space.
4258 **/
4259 static ssize_t
4260 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf,
4261 size_t nbytes, loff_t *ppos)
4262 {
4263 struct lpfc_debug *debug = file->private_data;
4264 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
4265 uint32_t ctl_reg_id, value, reg_val = 0;
4266 void __iomem *ctl_reg;
4267 int rc;
4268
4269 /* This is a user write operation */
4270 debug->op = LPFC_IDIAG_OP_WR;
4271
4272 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
4273 if (rc < 0)
4274 return rc;
4275
4276 /* Sanity check on command line arguments */
4277 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
4278 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX];
4279
4280 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
4281 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
4282 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
4283 if (rc != LPFC_CTL_ACC_WR_CMD_ARG)
4284 goto error_out;
4285 if (ctl_reg_id > LPFC_CTL_MAX)
4286 goto error_out;
4287 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) {
4288 if (rc != LPFC_CTL_ACC_RD_CMD_ARG)
4289 goto error_out;
4290 if ((ctl_reg_id > LPFC_CTL_MAX) &&
4291 (ctl_reg_id != LPFC_CTL_ACC_ALL))
4292 goto error_out;
4293 } else
4294 goto error_out;
4295
4296 /* Perform the write access operation */
4297 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
4298 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
4299 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
4300 switch (ctl_reg_id) {
4301 case LPFC_CTL_PORT_SEM:
4302 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4303 LPFC_CTL_PORT_SEM_OFFSET;
4304 break;
4305 case LPFC_CTL_PORT_STA:
4306 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4307 LPFC_CTL_PORT_STA_OFFSET;
4308 break;
4309 case LPFC_CTL_PORT_CTL:
4310 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4311 LPFC_CTL_PORT_CTL_OFFSET;
4312 break;
4313 case LPFC_CTL_PORT_ER1:
4314 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4315 LPFC_CTL_PORT_ER1_OFFSET;
4316 break;
4317 case LPFC_CTL_PORT_ER2:
4318 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4319 LPFC_CTL_PORT_ER2_OFFSET;
4320 break;
4321 case LPFC_CTL_PDEV_CTL:
4322 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4323 LPFC_CTL_PDEV_CTL_OFFSET;
4324 break;
4325 default:
4326 goto error_out;
4327 }
4328
4329 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR)
4330 reg_val = value;
4331 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) {
4332 reg_val = readl(ctl_reg);
4333 reg_val |= value;
4334 }
4335 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
4336 reg_val = readl(ctl_reg);
4337 reg_val &= ~value;
4338 }
4339 writel(reg_val, ctl_reg);
4340 readl(ctl_reg); /* flush */
4341 }
4342 return nbytes;
4343
4344 error_out:
4345 /* Clean out command structure on command error out */
4346 memset(&idiag, 0, sizeof(idiag));
4347 return -EINVAL;
4348 }
4349
4350 /**
4351 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
4352 * @phba: Pointer to HBA context object.
4353 * @pbuffer: Pointer to data buffer.
4354 *
4355 * Description:
4356 * This routine gets the driver mailbox access debugfs setup information.
4357 *
4358 * Returns:
4359 * This function returns the amount of data that was read (this could be less
4360 * than @nbytes if the end of the file was reached) or a negative error value.
4361 **/
4362 static int
4363 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
4364 {
4365 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
4366 int len = 0;
4367
4368 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
4369 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
4370 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
4371 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
4372
4373 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
4374 "mbx_dump_map: 0x%08x\n", mbx_dump_map);
4375 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
4376 "mbx_dump_cnt: %04d\n", mbx_dump_cnt);
4377 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
4378 "mbx_word_cnt: %04d\n", mbx_word_cnt);
4379 len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
4380 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
4381
4382 return len;
4383 }
4384
4385 /**
4386 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
4387 * @file: The file pointer to read from.
4388 * @buf: The buffer to copy the data to.
4389 * @nbytes: The number of bytes to read.
4390 * @ppos: The position in the file to start reading from.
4391 *
4392 * Description:
4393 * This routine reads data from the @phba driver mailbox access debugfs setup
4394 * information.
4395 *
4396 * Returns:
4397 * This function returns the amount of data that was read (this could be less
4398 * than @nbytes if the end of the file was reached) or a negative error value.
4399 **/
4400 static ssize_t
4401 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes,
4402 loff_t *ppos)
4403 {
4404 struct lpfc_debug *debug = file->private_data;
4405 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
4406 char *pbuffer;
4407 int len = 0;
4408
4409 /* This is a user read operation */
4410 debug->op = LPFC_IDIAG_OP_RD;
4411
4412 if (!debug->buffer)
4413 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL);
4414 if (!debug->buffer)
4415 return 0;
4416 pbuffer = debug->buffer;
4417
4418 if (*ppos)
4419 return 0;
4420
4421 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) &&
4422 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP))
4423 return 0;
4424
4425 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer);
4426
4427 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
4428 }
4429
4430 /**
4431 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
4432 * @file: The file pointer to read from.
4433 * @buf: The buffer to copy the user data from.
4434 * @nbytes: The number of bytes to get.
4435 * @ppos: The position in the file to start reading from.
4436 *
4437 * This routine get the debugfs idiag command struct from user space and then
4438 * perform the syntax check for driver mailbox command (dump) and sets up the
4439 * necessary states in the idiag command struct accordingly.
4440 *
4441 * It returns the @nbytges passing in from debugfs user space when successful.
4442 * In case of error conditions, it returns proper error code back to the user
4443 * space.
4444 **/
4445 static ssize_t
4446 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf,
4447 size_t nbytes, loff_t *ppos)
4448 {
4449 struct lpfc_debug *debug = file->private_data;
4450 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
4451 int rc;
4452
4453 /* This is a user write operation */
4454 debug->op = LPFC_IDIAG_OP_WR;
4455
4456 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
4457 if (rc < 0)
4458 return rc;
4459
4460 /* Sanity check on command line arguments */
4461 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
4462 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
4463 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
4464 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
4465
4466 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) {
4467 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL))
4468 goto error_out;
4469 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) &&
4470 (mbx_dump_map != LPFC_MBX_DMP_ALL))
4471 goto error_out;
4472 if (mbx_word_cnt > sizeof(MAILBOX_t))
4473 goto error_out;
4474 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) {
4475 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL))
4476 goto error_out;
4477 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) &&
4478 (mbx_dump_map != LPFC_MBX_DMP_ALL))
4479 goto error_out;
4480 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4)
4481 goto error_out;
4482 if (mbx_mbox_cmd != 0x9b)
4483 goto error_out;
4484 } else
4485 goto error_out;
4486
4487 if (mbx_word_cnt == 0)
4488 goto error_out;
4489 if (rc != LPFC_MBX_DMP_ARG)
4490 goto error_out;
4491 if (mbx_mbox_cmd & ~0xff)
4492 goto error_out;
4493
4494 /* condition for stop mailbox dump */
4495 if (mbx_dump_cnt == 0)
4496 goto reset_out;
4497
4498 return nbytes;
4499
4500 reset_out:
4501 /* Clean out command structure on command error out */
4502 memset(&idiag, 0, sizeof(idiag));
4503 return nbytes;
4504
4505 error_out:
4506 /* Clean out command structure on command error out */
4507 memset(&idiag, 0, sizeof(idiag));
4508 return -EINVAL;
4509 }
4510
4511 /**
4512 * lpfc_idiag_extacc_avail_get - get the available extents information
4513 * @phba: pointer to lpfc hba data structure.
4514 * @pbuffer: pointer to internal buffer.
4515 * @len: length into the internal buffer data has been copied.
4516 *
4517 * Description:
4518 * This routine is to get the available extent information.
4519 *
4520 * Returns:
4521 * overall lenth of the data read into the internal buffer.
4522 **/
4523 static int
4524 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
4525 {
4526 uint16_t ext_cnt, ext_size;
4527
4528 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4529 "\nAvailable Extents Information:\n");
4530
4531 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4532 "\tPort Available VPI extents: ");
4533 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
4534 &ext_cnt, &ext_size);
4535 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4536 "Count %3d, Size %3d\n", ext_cnt, ext_size);
4537
4538 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4539 "\tPort Available VFI extents: ");
4540 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
4541 &ext_cnt, &ext_size);
4542 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4543 "Count %3d, Size %3d\n", ext_cnt, ext_size);
4544
4545 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4546 "\tPort Available RPI extents: ");
4547 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
4548 &ext_cnt, &ext_size);
4549 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4550 "Count %3d, Size %3d\n", ext_cnt, ext_size);
4551
4552 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4553 "\tPort Available XRI extents: ");
4554 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
4555 &ext_cnt, &ext_size);
4556 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4557 "Count %3d, Size %3d\n", ext_cnt, ext_size);
4558
4559 return len;
4560 }
4561
4562 /**
4563 * lpfc_idiag_extacc_alloc_get - get the allocated extents information
4564 * @phba: pointer to lpfc hba data structure.
4565 * @pbuffer: pointer to internal buffer.
4566 * @len: length into the internal buffer data has been copied.
4567 *
4568 * Description:
4569 * This routine is to get the allocated extent information.
4570 *
4571 * Returns:
4572 * overall lenth of the data read into the internal buffer.
4573 **/
4574 static int
4575 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
4576 {
4577 uint16_t ext_cnt, ext_size;
4578 int rc;
4579
4580 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4581 "\nAllocated Extents Information:\n");
4582
4583 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4584 "\tHost Allocated VPI extents: ");
4585 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
4586 &ext_cnt, &ext_size);
4587 if (!rc)
4588 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4589 "Port %d Extent %3d, Size %3d\n",
4590 phba->brd_no, ext_cnt, ext_size);
4591 else
4592 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4593 "N/A\n");
4594
4595 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4596 "\tHost Allocated VFI extents: ");
4597 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
4598 &ext_cnt, &ext_size);
4599 if (!rc)
4600 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4601 "Port %d Extent %3d, Size %3d\n",
4602 phba->brd_no, ext_cnt, ext_size);
4603 else
4604 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4605 "N/A\n");
4606
4607 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4608 "\tHost Allocated RPI extents: ");
4609 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
4610 &ext_cnt, &ext_size);
4611 if (!rc)
4612 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4613 "Port %d Extent %3d, Size %3d\n",
4614 phba->brd_no, ext_cnt, ext_size);
4615 else
4616 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4617 "N/A\n");
4618
4619 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4620 "\tHost Allocated XRI extents: ");
4621 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
4622 &ext_cnt, &ext_size);
4623 if (!rc)
4624 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4625 "Port %d Extent %3d, Size %3d\n",
4626 phba->brd_no, ext_cnt, ext_size);
4627 else
4628 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4629 "N/A\n");
4630
4631 return len;
4632 }
4633
4634 /**
4635 * lpfc_idiag_extacc_drivr_get - get driver extent information
4636 * @phba: pointer to lpfc hba data structure.
4637 * @pbuffer: pointer to internal buffer.
4638 * @len: length into the internal buffer data has been copied.
4639 *
4640 * Description:
4641 * This routine is to get the driver extent information.
4642 *
4643 * Returns:
4644 * overall lenth of the data read into the internal buffer.
4645 **/
4646 static int
4647 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
4648 {
4649 struct lpfc_rsrc_blks *rsrc_blks;
4650 int index;
4651
4652 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4653 "\nDriver Extents Information:\n");
4654
4655 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4656 "\tVPI extents:\n");
4657 index = 0;
4658 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
4659 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4660 "\t\tBlock %3d: Start %4d, Count %4d\n",
4661 index, rsrc_blks->rsrc_start,
4662 rsrc_blks->rsrc_size);
4663 index++;
4664 }
4665 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4666 "\tVFI extents:\n");
4667 index = 0;
4668 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
4669 list) {
4670 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4671 "\t\tBlock %3d: Start %4d, Count %4d\n",
4672 index, rsrc_blks->rsrc_start,
4673 rsrc_blks->rsrc_size);
4674 index++;
4675 }
4676
4677 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4678 "\tRPI extents:\n");
4679 index = 0;
4680 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
4681 list) {
4682 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4683 "\t\tBlock %3d: Start %4d, Count %4d\n",
4684 index, rsrc_blks->rsrc_start,
4685 rsrc_blks->rsrc_size);
4686 index++;
4687 }
4688
4689 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4690 "\tXRI extents:\n");
4691 index = 0;
4692 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
4693 list) {
4694 len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
4695 "\t\tBlock %3d: Start %4d, Count %4d\n",
4696 index, rsrc_blks->rsrc_start,
4697 rsrc_blks->rsrc_size);
4698 index++;
4699 }
4700
4701 return len;
4702 }
4703
4704 /**
4705 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
4706 * @file: The file pointer to read from.
4707 * @buf: The buffer to copy the user data from.
4708 * @nbytes: The number of bytes to get.
4709 * @ppos: The position in the file to start reading from.
4710 *
4711 * This routine get the debugfs idiag command struct from user space and then
4712 * perform the syntax check for extent information access commands and sets
4713 * up the necessary states in the idiag command struct accordingly.
4714 *
4715 * It returns the @nbytges passing in from debugfs user space when successful.
4716 * In case of error conditions, it returns proper error code back to the user
4717 * space.
4718 **/
4719 static ssize_t
4720 lpfc_idiag_extacc_write(struct file *file, const char __user *buf,
4721 size_t nbytes, loff_t *ppos)
4722 {
4723 struct lpfc_debug *debug = file->private_data;
4724 uint32_t ext_map;
4725 int rc;
4726
4727 /* This is a user write operation */
4728 debug->op = LPFC_IDIAG_OP_WR;
4729
4730 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
4731 if (rc < 0)
4732 return rc;
4733
4734 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
4735
4736 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
4737 goto error_out;
4738 if (rc != LPFC_EXT_ACC_CMD_ARG)
4739 goto error_out;
4740 if (!(ext_map & LPFC_EXT_ACC_ALL))
4741 goto error_out;
4742
4743 return nbytes;
4744 error_out:
4745 /* Clean out command structure on command error out */
4746 memset(&idiag, 0, sizeof(idiag));
4747 return -EINVAL;
4748 }
4749
4750 /**
4751 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information
4752 * @file: The file pointer to read from.
4753 * @buf: The buffer to copy the data to.
4754 * @nbytes: The number of bytes to read.
4755 * @ppos: The position in the file to start reading from.
4756 *
4757 * Description:
4758 * This routine reads data from the proper extent information according to
4759 * the idiag command, and copies to user @buf.
4760 *
4761 * Returns:
4762 * This function returns the amount of data that was read (this could be less
4763 * than @nbytes if the end of the file was reached) or a negative error value.
4764 **/
4765 static ssize_t
4766 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes,
4767 loff_t *ppos)
4768 {
4769 struct lpfc_debug *debug = file->private_data;
4770 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
4771 char *pbuffer;
4772 uint32_t ext_map;
4773 int len = 0;
4774
4775 /* This is a user read operation */
4776 debug->op = LPFC_IDIAG_OP_RD;
4777
4778 if (!debug->buffer)
4779 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL);
4780 if (!debug->buffer)
4781 return 0;
4782 pbuffer = debug->buffer;
4783 if (*ppos)
4784 return 0;
4785 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
4786 return 0;
4787
4788 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
4789 if (ext_map & LPFC_EXT_ACC_AVAIL)
4790 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len);
4791 if (ext_map & LPFC_EXT_ACC_ALLOC)
4792 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len);
4793 if (ext_map & LPFC_EXT_ACC_DRIVR)
4794 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len);
4795
4796 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
4797 }
4798
4799 #undef lpfc_debugfs_op_disc_trc
4800 static const struct file_operations lpfc_debugfs_op_disc_trc = {
4801 .owner = THIS_MODULE,
4802 .open = lpfc_debugfs_disc_trc_open,
4803 .llseek = lpfc_debugfs_lseek,
4804 .read = lpfc_debugfs_read,
4805 .release = lpfc_debugfs_release,
4806 };
4807
4808 #undef lpfc_debugfs_op_nodelist
4809 static const struct file_operations lpfc_debugfs_op_nodelist = {
4810 .owner = THIS_MODULE,
4811 .open = lpfc_debugfs_nodelist_open,
4812 .llseek = lpfc_debugfs_lseek,
4813 .read = lpfc_debugfs_read,
4814 .release = lpfc_debugfs_release,
4815 };
4816
4817 #undef lpfc_debugfs_op_hbqinfo
4818 static const struct file_operations lpfc_debugfs_op_hbqinfo = {
4819 .owner = THIS_MODULE,
4820 .open = lpfc_debugfs_hbqinfo_open,
4821 .llseek = lpfc_debugfs_lseek,
4822 .read = lpfc_debugfs_read,
4823 .release = lpfc_debugfs_release,
4824 };
4825
4826 #undef lpfc_debugfs_op_dumpHBASlim
4827 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
4828 .owner = THIS_MODULE,
4829 .open = lpfc_debugfs_dumpHBASlim_open,
4830 .llseek = lpfc_debugfs_lseek,
4831 .read = lpfc_debugfs_read,
4832 .release = lpfc_debugfs_release,
4833 };
4834
4835 #undef lpfc_debugfs_op_dumpHostSlim
4836 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
4837 .owner = THIS_MODULE,
4838 .open = lpfc_debugfs_dumpHostSlim_open,
4839 .llseek = lpfc_debugfs_lseek,
4840 .read = lpfc_debugfs_read,
4841 .release = lpfc_debugfs_release,
4842 };
4843
4844 #undef lpfc_debugfs_op_nvmestat
4845 static const struct file_operations lpfc_debugfs_op_nvmestat = {
4846 .owner = THIS_MODULE,
4847 .open = lpfc_debugfs_nvmestat_open,
4848 .llseek = lpfc_debugfs_lseek,
4849 .read = lpfc_debugfs_read,
4850 .write = lpfc_debugfs_nvmestat_write,
4851 .release = lpfc_debugfs_release,
4852 };
4853
4854 #undef lpfc_debugfs_op_nvmektime
4855 static const struct file_operations lpfc_debugfs_op_nvmektime = {
4856 .owner = THIS_MODULE,
4857 .open = lpfc_debugfs_nvmektime_open,
4858 .llseek = lpfc_debugfs_lseek,
4859 .read = lpfc_debugfs_read,
4860 .write = lpfc_debugfs_nvmektime_write,
4861 .release = lpfc_debugfs_release,
4862 };
4863
4864 #undef lpfc_debugfs_op_nvmeio_trc
4865 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = {
4866 .owner = THIS_MODULE,
4867 .open = lpfc_debugfs_nvmeio_trc_open,
4868 .llseek = lpfc_debugfs_lseek,
4869 .read = lpfc_debugfs_read,
4870 .write = lpfc_debugfs_nvmeio_trc_write,
4871 .release = lpfc_debugfs_release,
4872 };
4873
4874 #undef lpfc_debugfs_op_cpucheck
4875 static const struct file_operations lpfc_debugfs_op_cpucheck = {
4876 .owner = THIS_MODULE,
4877 .open = lpfc_debugfs_cpucheck_open,
4878 .llseek = lpfc_debugfs_lseek,
4879 .read = lpfc_debugfs_read,
4880 .write = lpfc_debugfs_cpucheck_write,
4881 .release = lpfc_debugfs_release,
4882 };
4883
4884 #undef lpfc_debugfs_op_dumpData
4885 static const struct file_operations lpfc_debugfs_op_dumpData = {
4886 .owner = THIS_MODULE,
4887 .open = lpfc_debugfs_dumpData_open,
4888 .llseek = lpfc_debugfs_lseek,
4889 .read = lpfc_debugfs_read,
4890 .write = lpfc_debugfs_dumpDataDif_write,
4891 .release = lpfc_debugfs_dumpDataDif_release,
4892 };
4893
4894 #undef lpfc_debugfs_op_dumpDif
4895 static const struct file_operations lpfc_debugfs_op_dumpDif = {
4896 .owner = THIS_MODULE,
4897 .open = lpfc_debugfs_dumpDif_open,
4898 .llseek = lpfc_debugfs_lseek,
4899 .read = lpfc_debugfs_read,
4900 .write = lpfc_debugfs_dumpDataDif_write,
4901 .release = lpfc_debugfs_dumpDataDif_release,
4902 };
4903
4904 #undef lpfc_debugfs_op_dif_err
4905 static const struct file_operations lpfc_debugfs_op_dif_err = {
4906 .owner = THIS_MODULE,
4907 .open = simple_open,
4908 .llseek = lpfc_debugfs_lseek,
4909 .read = lpfc_debugfs_dif_err_read,
4910 .write = lpfc_debugfs_dif_err_write,
4911 .release = lpfc_debugfs_dif_err_release,
4912 };
4913
4914 #undef lpfc_debugfs_op_slow_ring_trc
4915 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
4916 .owner = THIS_MODULE,
4917 .open = lpfc_debugfs_slow_ring_trc_open,
4918 .llseek = lpfc_debugfs_lseek,
4919 .read = lpfc_debugfs_read,
4920 .release = lpfc_debugfs_release,
4921 };
4922
4923 static struct dentry *lpfc_debugfs_root = NULL;
4924 static atomic_t lpfc_debugfs_hba_count;
4925
4926 /*
4927 * File operations for the iDiag debugfs
4928 */
4929 #undef lpfc_idiag_op_pciCfg
4930 static const struct file_operations lpfc_idiag_op_pciCfg = {
4931 .owner = THIS_MODULE,
4932 .open = lpfc_idiag_open,
4933 .llseek = lpfc_debugfs_lseek,
4934 .read = lpfc_idiag_pcicfg_read,
4935 .write = lpfc_idiag_pcicfg_write,
4936 .release = lpfc_idiag_cmd_release,
4937 };
4938
4939 #undef lpfc_idiag_op_barAcc
4940 static const struct file_operations lpfc_idiag_op_barAcc = {
4941 .owner = THIS_MODULE,
4942 .open = lpfc_idiag_open,
4943 .llseek = lpfc_debugfs_lseek,
4944 .read = lpfc_idiag_baracc_read,
4945 .write = lpfc_idiag_baracc_write,
4946 .release = lpfc_idiag_cmd_release,
4947 };
4948
4949 #undef lpfc_idiag_op_queInfo
4950 static const struct file_operations lpfc_idiag_op_queInfo = {
4951 .owner = THIS_MODULE,
4952 .open = lpfc_idiag_open,
4953 .read = lpfc_idiag_queinfo_read,
4954 .release = lpfc_idiag_release,
4955 };
4956
4957 #undef lpfc_idiag_op_queAcc
4958 static const struct file_operations lpfc_idiag_op_queAcc = {
4959 .owner = THIS_MODULE,
4960 .open = lpfc_idiag_open,
4961 .llseek = lpfc_debugfs_lseek,
4962 .read = lpfc_idiag_queacc_read,
4963 .write = lpfc_idiag_queacc_write,
4964 .release = lpfc_idiag_cmd_release,
4965 };
4966
4967 #undef lpfc_idiag_op_drbAcc
4968 static const struct file_operations lpfc_idiag_op_drbAcc = {
4969 .owner = THIS_MODULE,
4970 .open = lpfc_idiag_open,
4971 .llseek = lpfc_debugfs_lseek,
4972 .read = lpfc_idiag_drbacc_read,
4973 .write = lpfc_idiag_drbacc_write,
4974 .release = lpfc_idiag_cmd_release,
4975 };
4976
4977 #undef lpfc_idiag_op_ctlAcc
4978 static const struct file_operations lpfc_idiag_op_ctlAcc = {
4979 .owner = THIS_MODULE,
4980 .open = lpfc_idiag_open,
4981 .llseek = lpfc_debugfs_lseek,
4982 .read = lpfc_idiag_ctlacc_read,
4983 .write = lpfc_idiag_ctlacc_write,
4984 .release = lpfc_idiag_cmd_release,
4985 };
4986
4987 #undef lpfc_idiag_op_mbxAcc
4988 static const struct file_operations lpfc_idiag_op_mbxAcc = {
4989 .owner = THIS_MODULE,
4990 .open = lpfc_idiag_open,
4991 .llseek = lpfc_debugfs_lseek,
4992 .read = lpfc_idiag_mbxacc_read,
4993 .write = lpfc_idiag_mbxacc_write,
4994 .release = lpfc_idiag_cmd_release,
4995 };
4996
4997 #undef lpfc_idiag_op_extAcc
4998 static const struct file_operations lpfc_idiag_op_extAcc = {
4999 .owner = THIS_MODULE,
5000 .open = lpfc_idiag_open,
5001 .llseek = lpfc_debugfs_lseek,
5002 .read = lpfc_idiag_extacc_read,
5003 .write = lpfc_idiag_extacc_write,
5004 .release = lpfc_idiag_cmd_release,
5005 };
5006
5007 #endif
5008
5009 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
5010 * @phba: Pointer to HBA context object.
5011 * @dmabuf: Pointer to a DMA buffer descriptor.
5012 *
5013 * Description:
5014 * This routine dump a bsg pass-through non-embedded mailbox command with
5015 * external buffer.
5016 **/
5017 void
5018 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
5019 enum mbox_type mbox_tp, enum dma_type dma_tp,
5020 enum sta_type sta_tp,
5021 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf)
5022 {
5023 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
5024 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt;
5025 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
5026 int len = 0;
5027 uint32_t do_dump = 0;
5028 uint32_t *pword;
5029 uint32_t i;
5030
5031 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)
5032 return;
5033
5034 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
5035 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
5036 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
5037 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
5038
5039 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) ||
5040 (*mbx_dump_cnt == 0) ||
5041 (*mbx_word_cnt == 0))
5042 return;
5043
5044 if (*mbx_mbox_cmd != 0x9B)
5045 return;
5046
5047 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) {
5048 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) {
5049 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX;
5050 pr_err("\nRead mbox command (x%x), "
5051 "nemb:0x%x, extbuf_cnt:%d:\n",
5052 sta_tp, nemb_tp, ext_buf);
5053 }
5054 }
5055 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) {
5056 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) {
5057 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF;
5058 pr_err("\nRead mbox buffer (x%x), "
5059 "nemb:0x%x, extbuf_seq:%d:\n",
5060 sta_tp, nemb_tp, ext_buf);
5061 }
5062 }
5063 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) {
5064 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) {
5065 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX;
5066 pr_err("\nWrite mbox command (x%x), "
5067 "nemb:0x%x, extbuf_cnt:%d:\n",
5068 sta_tp, nemb_tp, ext_buf);
5069 }
5070 }
5071 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) {
5072 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) {
5073 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF;
5074 pr_err("\nWrite mbox buffer (x%x), "
5075 "nemb:0x%x, extbuf_seq:%d:\n",
5076 sta_tp, nemb_tp, ext_buf);
5077 }
5078 }
5079
5080 /* dump buffer content */
5081 if (do_dump) {
5082 pword = (uint32_t *)dmabuf->virt;
5083 for (i = 0; i < *mbx_word_cnt; i++) {
5084 if (!(i % 8)) {
5085 if (i != 0)
5086 pr_err("%s\n", line_buf);
5087 len = 0;
5088 len += snprintf(line_buf+len,
5089 LPFC_MBX_ACC_LBUF_SZ-len,
5090 "%03d: ", i);
5091 }
5092 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
5093 "%08x ", (uint32_t)*pword);
5094 pword++;
5095 }
5096 if ((i - 1) % 8)
5097 pr_err("%s\n", line_buf);
5098 (*mbx_dump_cnt)--;
5099 }
5100
5101 /* Clean out command structure on reaching dump count */
5102 if (*mbx_dump_cnt == 0)
5103 memset(&idiag, 0, sizeof(idiag));
5104 return;
5105 #endif
5106 }
5107
5108 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
5109 * @phba: Pointer to HBA context object.
5110 * @dmabuf: Pointer to a DMA buffer descriptor.
5111 *
5112 * Description:
5113 * This routine dump a pass-through non-embedded mailbox command from issue
5114 * mailbox command.
5115 **/
5116 void
5117 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
5118 {
5119 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
5120 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd;
5121 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
5122 int len = 0;
5123 uint32_t *pword;
5124 uint8_t *pbyte;
5125 uint32_t i, j;
5126
5127 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP)
5128 return;
5129
5130 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
5131 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
5132 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
5133 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
5134
5135 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) ||
5136 (*mbx_dump_cnt == 0) ||
5137 (*mbx_word_cnt == 0))
5138 return;
5139
5140 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) &&
5141 (*mbx_mbox_cmd != pmbox->mbxCommand))
5142 return;
5143
5144 /* dump buffer content */
5145 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) {
5146 pr_err("Mailbox command:0x%x dump by word:\n",
5147 pmbox->mbxCommand);
5148 pword = (uint32_t *)pmbox;
5149 for (i = 0; i < *mbx_word_cnt; i++) {
5150 if (!(i % 8)) {
5151 if (i != 0)
5152 pr_err("%s\n", line_buf);
5153 len = 0;
5154 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
5155 len += snprintf(line_buf+len,
5156 LPFC_MBX_ACC_LBUF_SZ-len,
5157 "%03d: ", i);
5158 }
5159 len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
5160 "%08x ",
5161 ((uint32_t)*pword) & 0xffffffff);
5162 pword++;
5163 }
5164 if ((i - 1) % 8)
5165 pr_err("%s\n", line_buf);
5166 pr_err("\n");
5167 }
5168 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) {
5169 pr_err("Mailbox command:0x%x dump by byte:\n",
5170 pmbox->mbxCommand);
5171 pbyte = (uint8_t *)pmbox;
5172 for (i = 0; i < *mbx_word_cnt; i++) {
5173 if (!(i % 8)) {
5174 if (i != 0)
5175 pr_err("%s\n", line_buf);
5176 len = 0;
5177 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
5178 len += snprintf(line_buf+len,
5179 LPFC_MBX_ACC_LBUF_SZ-len,
5180 "%03d: ", i);
5181 }
5182 for (j = 0; j < 4; j++) {
5183 len += snprintf(line_buf+len,
5184 LPFC_MBX_ACC_LBUF_SZ-len,
5185 "%02x",
5186 ((uint8_t)*pbyte) & 0xff);
5187 pbyte++;
5188 }
5189 len += snprintf(line_buf+len,
5190 LPFC_MBX_ACC_LBUF_SZ-len, " ");
5191 }
5192 if ((i - 1) % 8)
5193 pr_err("%s\n", line_buf);
5194 pr_err("\n");
5195 }
5196 (*mbx_dump_cnt)--;
5197
5198 /* Clean out command structure on reaching dump count */
5199 if (*mbx_dump_cnt == 0)
5200 memset(&idiag, 0, sizeof(idiag));
5201 return;
5202 #endif
5203 }
5204
5205 /**
5206 * lpfc_debugfs_initialize - Initialize debugfs for a vport
5207 * @vport: The vport pointer to initialize.
5208 *
5209 * Description:
5210 * When Debugfs is configured this routine sets up the lpfc debugfs file system.
5211 * If not already created, this routine will create the lpfc directory, and
5212 * lpfcX directory (for this HBA), and vportX directory for this vport. It will
5213 * also create each file used to access lpfc specific debugfs information.
5214 **/
5215 inline void
5216 lpfc_debugfs_initialize(struct lpfc_vport *vport)
5217 {
5218 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
5219 struct lpfc_hba *phba = vport->phba;
5220 char name[64];
5221 uint32_t num, i;
5222 bool pport_setup = false;
5223
5224 if (!lpfc_debugfs_enable)
5225 return;
5226
5227 /* Setup lpfc root directory */
5228 if (!lpfc_debugfs_root) {
5229 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
5230 atomic_set(&lpfc_debugfs_hba_count, 0);
5231 if (!lpfc_debugfs_root) {
5232 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5233 "0408 Cannot create debugfs root\n");
5234 goto debug_failed;
5235 }
5236 }
5237 if (!lpfc_debugfs_start_time)
5238 lpfc_debugfs_start_time = jiffies;
5239
5240 /* Setup funcX directory for specific HBA PCI function */
5241 snprintf(name, sizeof(name), "fn%d", phba->brd_no);
5242 if (!phba->hba_debugfs_root) {
5243 pport_setup = true;
5244 phba->hba_debugfs_root =
5245 debugfs_create_dir(name, lpfc_debugfs_root);
5246 if (!phba->hba_debugfs_root) {
5247 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5248 "0412 Cannot create debugfs hba\n");
5249 goto debug_failed;
5250 }
5251 atomic_inc(&lpfc_debugfs_hba_count);
5252 atomic_set(&phba->debugfs_vport_count, 0);
5253
5254 /* Setup hbqinfo */
5255 snprintf(name, sizeof(name), "hbqinfo");
5256 phba->debug_hbqinfo =
5257 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5258 phba->hba_debugfs_root,
5259 phba, &lpfc_debugfs_op_hbqinfo);
5260 if (!phba->debug_hbqinfo) {
5261 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5262 "0411 Cannot create debugfs hbqinfo\n");
5263 goto debug_failed;
5264 }
5265
5266 /* Setup dumpHBASlim */
5267 if (phba->sli_rev < LPFC_SLI_REV4) {
5268 snprintf(name, sizeof(name), "dumpHBASlim");
5269 phba->debug_dumpHBASlim =
5270 debugfs_create_file(name,
5271 S_IFREG|S_IRUGO|S_IWUSR,
5272 phba->hba_debugfs_root,
5273 phba, &lpfc_debugfs_op_dumpHBASlim);
5274 if (!phba->debug_dumpHBASlim) {
5275 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5276 "0413 Cannot create debugfs "
5277 "dumpHBASlim\n");
5278 goto debug_failed;
5279 }
5280 } else
5281 phba->debug_dumpHBASlim = NULL;
5282
5283 /* Setup dumpHostSlim */
5284 if (phba->sli_rev < LPFC_SLI_REV4) {
5285 snprintf(name, sizeof(name), "dumpHostSlim");
5286 phba->debug_dumpHostSlim =
5287 debugfs_create_file(name,
5288 S_IFREG|S_IRUGO|S_IWUSR,
5289 phba->hba_debugfs_root,
5290 phba, &lpfc_debugfs_op_dumpHostSlim);
5291 if (!phba->debug_dumpHostSlim) {
5292 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5293 "0414 Cannot create debugfs "
5294 "dumpHostSlim\n");
5295 goto debug_failed;
5296 }
5297 } else
5298 phba->debug_dumpHostSlim = NULL;
5299
5300 /* Setup dumpData */
5301 snprintf(name, sizeof(name), "dumpData");
5302 phba->debug_dumpData =
5303 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5304 phba->hba_debugfs_root,
5305 phba, &lpfc_debugfs_op_dumpData);
5306 if (!phba->debug_dumpData) {
5307 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5308 "0800 Cannot create debugfs dumpData\n");
5309 goto debug_failed;
5310 }
5311
5312 /* Setup dumpDif */
5313 snprintf(name, sizeof(name), "dumpDif");
5314 phba->debug_dumpDif =
5315 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5316 phba->hba_debugfs_root,
5317 phba, &lpfc_debugfs_op_dumpDif);
5318 if (!phba->debug_dumpDif) {
5319 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5320 "0801 Cannot create debugfs dumpDif\n");
5321 goto debug_failed;
5322 }
5323
5324 /* Setup DIF Error Injections */
5325 snprintf(name, sizeof(name), "InjErrLBA");
5326 phba->debug_InjErrLBA =
5327 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5328 phba->hba_debugfs_root,
5329 phba, &lpfc_debugfs_op_dif_err);
5330 if (!phba->debug_InjErrLBA) {
5331 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5332 "0807 Cannot create debugfs InjErrLBA\n");
5333 goto debug_failed;
5334 }
5335 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
5336
5337 snprintf(name, sizeof(name), "InjErrNPortID");
5338 phba->debug_InjErrNPortID =
5339 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5340 phba->hba_debugfs_root,
5341 phba, &lpfc_debugfs_op_dif_err);
5342 if (!phba->debug_InjErrNPortID) {
5343 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5344 "0809 Cannot create debugfs InjErrNPortID\n");
5345 goto debug_failed;
5346 }
5347
5348 snprintf(name, sizeof(name), "InjErrWWPN");
5349 phba->debug_InjErrWWPN =
5350 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5351 phba->hba_debugfs_root,
5352 phba, &lpfc_debugfs_op_dif_err);
5353 if (!phba->debug_InjErrWWPN) {
5354 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5355 "0810 Cannot create debugfs InjErrWWPN\n");
5356 goto debug_failed;
5357 }
5358
5359 snprintf(name, sizeof(name), "writeGuardInjErr");
5360 phba->debug_writeGuard =
5361 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5362 phba->hba_debugfs_root,
5363 phba, &lpfc_debugfs_op_dif_err);
5364 if (!phba->debug_writeGuard) {
5365 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5366 "0802 Cannot create debugfs writeGuard\n");
5367 goto debug_failed;
5368 }
5369
5370 snprintf(name, sizeof(name), "writeAppInjErr");
5371 phba->debug_writeApp =
5372 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5373 phba->hba_debugfs_root,
5374 phba, &lpfc_debugfs_op_dif_err);
5375 if (!phba->debug_writeApp) {
5376 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5377 "0803 Cannot create debugfs writeApp\n");
5378 goto debug_failed;
5379 }
5380
5381 snprintf(name, sizeof(name), "writeRefInjErr");
5382 phba->debug_writeRef =
5383 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5384 phba->hba_debugfs_root,
5385 phba, &lpfc_debugfs_op_dif_err);
5386 if (!phba->debug_writeRef) {
5387 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5388 "0804 Cannot create debugfs writeRef\n");
5389 goto debug_failed;
5390 }
5391
5392 snprintf(name, sizeof(name), "readGuardInjErr");
5393 phba->debug_readGuard =
5394 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5395 phba->hba_debugfs_root,
5396 phba, &lpfc_debugfs_op_dif_err);
5397 if (!phba->debug_readGuard) {
5398 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5399 "0808 Cannot create debugfs readGuard\n");
5400 goto debug_failed;
5401 }
5402
5403 snprintf(name, sizeof(name), "readAppInjErr");
5404 phba->debug_readApp =
5405 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5406 phba->hba_debugfs_root,
5407 phba, &lpfc_debugfs_op_dif_err);
5408 if (!phba->debug_readApp) {
5409 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5410 "0805 Cannot create debugfs readApp\n");
5411 goto debug_failed;
5412 }
5413
5414 snprintf(name, sizeof(name), "readRefInjErr");
5415 phba->debug_readRef =
5416 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5417 phba->hba_debugfs_root,
5418 phba, &lpfc_debugfs_op_dif_err);
5419 if (!phba->debug_readRef) {
5420 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5421 "0806 Cannot create debugfs readApp\n");
5422 goto debug_failed;
5423 }
5424
5425 /* Setup slow ring trace */
5426 if (lpfc_debugfs_max_slow_ring_trc) {
5427 num = lpfc_debugfs_max_slow_ring_trc - 1;
5428 if (num & lpfc_debugfs_max_slow_ring_trc) {
5429 /* Change to be a power of 2 */
5430 num = lpfc_debugfs_max_slow_ring_trc;
5431 i = 0;
5432 while (num > 1) {
5433 num = num >> 1;
5434 i++;
5435 }
5436 lpfc_debugfs_max_slow_ring_trc = (1 << i);
5437 pr_err("lpfc_debugfs_max_disc_trc changed to "
5438 "%d\n", lpfc_debugfs_max_disc_trc);
5439 }
5440 }
5441
5442 snprintf(name, sizeof(name), "slow_ring_trace");
5443 phba->debug_slow_ring_trc =
5444 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5445 phba->hba_debugfs_root,
5446 phba, &lpfc_debugfs_op_slow_ring_trc);
5447 if (!phba->debug_slow_ring_trc) {
5448 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5449 "0415 Cannot create debugfs "
5450 "slow_ring_trace\n");
5451 goto debug_failed;
5452 }
5453 if (!phba->slow_ring_trc) {
5454 phba->slow_ring_trc = kmalloc(
5455 (sizeof(struct lpfc_debugfs_trc) *
5456 lpfc_debugfs_max_slow_ring_trc),
5457 GFP_KERNEL);
5458 if (!phba->slow_ring_trc) {
5459 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5460 "0416 Cannot create debugfs "
5461 "slow_ring buffer\n");
5462 goto debug_failed;
5463 }
5464 atomic_set(&phba->slow_ring_trc_cnt, 0);
5465 memset(phba->slow_ring_trc, 0,
5466 (sizeof(struct lpfc_debugfs_trc) *
5467 lpfc_debugfs_max_slow_ring_trc));
5468 }
5469
5470 snprintf(name, sizeof(name), "nvmeio_trc");
5471 phba->debug_nvmeio_trc =
5472 debugfs_create_file(name, 0644,
5473 phba->hba_debugfs_root,
5474 phba, &lpfc_debugfs_op_nvmeio_trc);
5475 if (!phba->debug_nvmeio_trc) {
5476 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5477 "0574 No create debugfs nvmeio_trc\n");
5478 goto debug_failed;
5479 }
5480
5481 atomic_set(&phba->nvmeio_trc_cnt, 0);
5482 if (lpfc_debugfs_max_nvmeio_trc) {
5483 num = lpfc_debugfs_max_nvmeio_trc - 1;
5484 if (num & lpfc_debugfs_max_disc_trc) {
5485 /* Change to be a power of 2 */
5486 num = lpfc_debugfs_max_nvmeio_trc;
5487 i = 0;
5488 while (num > 1) {
5489 num = num >> 1;
5490 i++;
5491 }
5492 lpfc_debugfs_max_nvmeio_trc = (1 << i);
5493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5494 "0575 lpfc_debugfs_max_nvmeio_trc "
5495 "changed to %d\n",
5496 lpfc_debugfs_max_nvmeio_trc);
5497 }
5498 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc;
5499
5500 /* Allocate trace buffer and initialize */
5501 phba->nvmeio_trc = kzalloc(
5502 (sizeof(struct lpfc_debugfs_nvmeio_trc) *
5503 phba->nvmeio_trc_size), GFP_KERNEL);
5504
5505 if (!phba->nvmeio_trc) {
5506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5507 "0576 Cannot create debugfs "
5508 "nvmeio_trc buffer\n");
5509 goto nvmeio_off;
5510 }
5511 phba->nvmeio_trc_on = 1;
5512 phba->nvmeio_trc_output_idx = 0;
5513 phba->nvmeio_trc = NULL;
5514 } else {
5515 nvmeio_off:
5516 phba->nvmeio_trc_size = 0;
5517 phba->nvmeio_trc_on = 0;
5518 phba->nvmeio_trc_output_idx = 0;
5519 phba->nvmeio_trc = NULL;
5520 }
5521 }
5522
5523 snprintf(name, sizeof(name), "vport%d", vport->vpi);
5524 if (!vport->vport_debugfs_root) {
5525 vport->vport_debugfs_root =
5526 debugfs_create_dir(name, phba->hba_debugfs_root);
5527 if (!vport->vport_debugfs_root) {
5528 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5529 "0417 Can't create debugfs\n");
5530 goto debug_failed;
5531 }
5532 atomic_inc(&phba->debugfs_vport_count);
5533 }
5534
5535 if (lpfc_debugfs_max_disc_trc) {
5536 num = lpfc_debugfs_max_disc_trc - 1;
5537 if (num & lpfc_debugfs_max_disc_trc) {
5538 /* Change to be a power of 2 */
5539 num = lpfc_debugfs_max_disc_trc;
5540 i = 0;
5541 while (num > 1) {
5542 num = num >> 1;
5543 i++;
5544 }
5545 lpfc_debugfs_max_disc_trc = (1 << i);
5546 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n",
5547 lpfc_debugfs_max_disc_trc);
5548 }
5549 }
5550
5551 vport->disc_trc = kzalloc(
5552 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
5553 GFP_KERNEL);
5554
5555 if (!vport->disc_trc) {
5556 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5557 "0418 Cannot create debugfs disc trace "
5558 "buffer\n");
5559 goto debug_failed;
5560 }
5561 atomic_set(&vport->disc_trc_cnt, 0);
5562
5563 snprintf(name, sizeof(name), "discovery_trace");
5564 vport->debug_disc_trc =
5565 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5566 vport->vport_debugfs_root,
5567 vport, &lpfc_debugfs_op_disc_trc);
5568 if (!vport->debug_disc_trc) {
5569 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5570 "0419 Cannot create debugfs "
5571 "discovery_trace\n");
5572 goto debug_failed;
5573 }
5574 snprintf(name, sizeof(name), "nodelist");
5575 vport->debug_nodelist =
5576 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5577 vport->vport_debugfs_root,
5578 vport, &lpfc_debugfs_op_nodelist);
5579 if (!vport->debug_nodelist) {
5580 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5581 "2985 Can't create debugfs nodelist\n");
5582 goto debug_failed;
5583 }
5584
5585 snprintf(name, sizeof(name), "nvmestat");
5586 vport->debug_nvmestat =
5587 debugfs_create_file(name, 0644,
5588 vport->vport_debugfs_root,
5589 vport, &lpfc_debugfs_op_nvmestat);
5590 if (!vport->debug_nvmestat) {
5591 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5592 "0811 Cannot create debugfs nvmestat\n");
5593 goto debug_failed;
5594 }
5595
5596 snprintf(name, sizeof(name), "nvmektime");
5597 vport->debug_nvmektime =
5598 debugfs_create_file(name, 0644,
5599 vport->vport_debugfs_root,
5600 vport, &lpfc_debugfs_op_nvmektime);
5601 if (!vport->debug_nvmektime) {
5602 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5603 "0815 Cannot create debugfs nvmektime\n");
5604 goto debug_failed;
5605 }
5606
5607 snprintf(name, sizeof(name), "cpucheck");
5608 vport->debug_cpucheck =
5609 debugfs_create_file(name, 0644,
5610 vport->vport_debugfs_root,
5611 vport, &lpfc_debugfs_op_cpucheck);
5612 if (!vport->debug_cpucheck) {
5613 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5614 "0819 Cannot create debugfs cpucheck\n");
5615 goto debug_failed;
5616 }
5617
5618 /*
5619 * The following section is for additional directories/files for the
5620 * physical port.
5621 */
5622
5623 if (!pport_setup)
5624 goto debug_failed;
5625
5626 /*
5627 * iDiag debugfs root entry points for SLI4 device only
5628 */
5629 if (phba->sli_rev < LPFC_SLI_REV4)
5630 goto debug_failed;
5631
5632 snprintf(name, sizeof(name), "iDiag");
5633 if (!phba->idiag_root) {
5634 phba->idiag_root =
5635 debugfs_create_dir(name, phba->hba_debugfs_root);
5636 if (!phba->idiag_root) {
5637 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5638 "2922 Can't create idiag debugfs\n");
5639 goto debug_failed;
5640 }
5641 /* Initialize iDiag data structure */
5642 memset(&idiag, 0, sizeof(idiag));
5643 }
5644
5645 /* iDiag read PCI config space */
5646 snprintf(name, sizeof(name), "pciCfg");
5647 if (!phba->idiag_pci_cfg) {
5648 phba->idiag_pci_cfg =
5649 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5650 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
5651 if (!phba->idiag_pci_cfg) {
5652 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5653 "2923 Can't create idiag debugfs\n");
5654 goto debug_failed;
5655 }
5656 idiag.offset.last_rd = 0;
5657 }
5658
5659 /* iDiag PCI BAR access */
5660 snprintf(name, sizeof(name), "barAcc");
5661 if (!phba->idiag_bar_acc) {
5662 phba->idiag_bar_acc =
5663 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5664 phba->idiag_root, phba, &lpfc_idiag_op_barAcc);
5665 if (!phba->idiag_bar_acc) {
5666 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5667 "3056 Can't create idiag debugfs\n");
5668 goto debug_failed;
5669 }
5670 idiag.offset.last_rd = 0;
5671 }
5672
5673 /* iDiag get PCI function queue information */
5674 snprintf(name, sizeof(name), "queInfo");
5675 if (!phba->idiag_que_info) {
5676 phba->idiag_que_info =
5677 debugfs_create_file(name, S_IFREG|S_IRUGO,
5678 phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
5679 if (!phba->idiag_que_info) {
5680 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5681 "2924 Can't create idiag debugfs\n");
5682 goto debug_failed;
5683 }
5684 }
5685
5686 /* iDiag access PCI function queue */
5687 snprintf(name, sizeof(name), "queAcc");
5688 if (!phba->idiag_que_acc) {
5689 phba->idiag_que_acc =
5690 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5691 phba->idiag_root, phba, &lpfc_idiag_op_queAcc);
5692 if (!phba->idiag_que_acc) {
5693 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5694 "2926 Can't create idiag debugfs\n");
5695 goto debug_failed;
5696 }
5697 }
5698
5699 /* iDiag access PCI function doorbell registers */
5700 snprintf(name, sizeof(name), "drbAcc");
5701 if (!phba->idiag_drb_acc) {
5702 phba->idiag_drb_acc =
5703 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5704 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc);
5705 if (!phba->idiag_drb_acc) {
5706 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5707 "2927 Can't create idiag debugfs\n");
5708 goto debug_failed;
5709 }
5710 }
5711
5712 /* iDiag access PCI function control registers */
5713 snprintf(name, sizeof(name), "ctlAcc");
5714 if (!phba->idiag_ctl_acc) {
5715 phba->idiag_ctl_acc =
5716 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5717 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc);
5718 if (!phba->idiag_ctl_acc) {
5719 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5720 "2981 Can't create idiag debugfs\n");
5721 goto debug_failed;
5722 }
5723 }
5724
5725 /* iDiag access mbox commands */
5726 snprintf(name, sizeof(name), "mbxAcc");
5727 if (!phba->idiag_mbx_acc) {
5728 phba->idiag_mbx_acc =
5729 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5730 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc);
5731 if (!phba->idiag_mbx_acc) {
5732 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5733 "2980 Can't create idiag debugfs\n");
5734 goto debug_failed;
5735 }
5736 }
5737
5738 /* iDiag extents access commands */
5739 if (phba->sli4_hba.extents_in_use) {
5740 snprintf(name, sizeof(name), "extAcc");
5741 if (!phba->idiag_ext_acc) {
5742 phba->idiag_ext_acc =
5743 debugfs_create_file(name,
5744 S_IFREG|S_IRUGO|S_IWUSR,
5745 phba->idiag_root, phba,
5746 &lpfc_idiag_op_extAcc);
5747 if (!phba->idiag_ext_acc) {
5748 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5749 "2986 Cant create "
5750 "idiag debugfs\n");
5751 goto debug_failed;
5752 }
5753 }
5754 }
5755
5756 debug_failed:
5757 return;
5758 #endif
5759 }
5760
5761 /**
5762 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
5763 * @vport: The vport pointer to remove from debugfs.
5764 *
5765 * Description:
5766 * When Debugfs is configured this routine removes debugfs file system elements
5767 * that are specific to this vport. It also checks to see if there are any
5768 * users left for the debugfs directories associated with the HBA and driver. If
5769 * this is the last user of the HBA directory or driver directory then it will
5770 * remove those from the debugfs infrastructure as well.
5771 **/
5772 inline void
5773 lpfc_debugfs_terminate(struct lpfc_vport *vport)
5774 {
5775 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
5776 struct lpfc_hba *phba = vport->phba;
5777
5778 kfree(vport->disc_trc);
5779 vport->disc_trc = NULL;
5780
5781 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
5782 vport->debug_disc_trc = NULL;
5783
5784 debugfs_remove(vport->debug_nodelist); /* nodelist */
5785 vport->debug_nodelist = NULL;
5786
5787 debugfs_remove(vport->debug_nvmestat); /* nvmestat */
5788 vport->debug_nvmestat = NULL;
5789
5790 debugfs_remove(vport->debug_nvmektime); /* nvmektime */
5791 vport->debug_nvmektime = NULL;
5792
5793 debugfs_remove(vport->debug_cpucheck); /* cpucheck */
5794 vport->debug_cpucheck = NULL;
5795
5796 if (vport->vport_debugfs_root) {
5797 debugfs_remove(vport->vport_debugfs_root); /* vportX */
5798 vport->vport_debugfs_root = NULL;
5799 atomic_dec(&phba->debugfs_vport_count);
5800 }
5801
5802 if (atomic_read(&phba->debugfs_vport_count) == 0) {
5803
5804 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
5805 phba->debug_hbqinfo = NULL;
5806
5807 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
5808 phba->debug_dumpHBASlim = NULL;
5809
5810 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
5811 phba->debug_dumpHostSlim = NULL;
5812
5813 debugfs_remove(phba->debug_dumpData); /* dumpData */
5814 phba->debug_dumpData = NULL;
5815
5816 debugfs_remove(phba->debug_dumpDif); /* dumpDif */
5817 phba->debug_dumpDif = NULL;
5818
5819 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
5820 phba->debug_InjErrLBA = NULL;
5821
5822 debugfs_remove(phba->debug_InjErrNPortID);
5823 phba->debug_InjErrNPortID = NULL;
5824
5825 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */
5826 phba->debug_InjErrWWPN = NULL;
5827
5828 debugfs_remove(phba->debug_writeGuard); /* writeGuard */
5829 phba->debug_writeGuard = NULL;
5830
5831 debugfs_remove(phba->debug_writeApp); /* writeApp */
5832 phba->debug_writeApp = NULL;
5833
5834 debugfs_remove(phba->debug_writeRef); /* writeRef */
5835 phba->debug_writeRef = NULL;
5836
5837 debugfs_remove(phba->debug_readGuard); /* readGuard */
5838 phba->debug_readGuard = NULL;
5839
5840 debugfs_remove(phba->debug_readApp); /* readApp */
5841 phba->debug_readApp = NULL;
5842
5843 debugfs_remove(phba->debug_readRef); /* readRef */
5844 phba->debug_readRef = NULL;
5845
5846 kfree(phba->slow_ring_trc);
5847 phba->slow_ring_trc = NULL;
5848
5849 /* slow_ring_trace */
5850 debugfs_remove(phba->debug_slow_ring_trc);
5851 phba->debug_slow_ring_trc = NULL;
5852
5853 debugfs_remove(phba->debug_nvmeio_trc);
5854 phba->debug_nvmeio_trc = NULL;
5855
5856 kfree(phba->nvmeio_trc);
5857 phba->nvmeio_trc = NULL;
5858
5859 /*
5860 * iDiag release
5861 */
5862 if (phba->sli_rev == LPFC_SLI_REV4) {
5863 /* iDiag extAcc */
5864 debugfs_remove(phba->idiag_ext_acc);
5865 phba->idiag_ext_acc = NULL;
5866
5867 /* iDiag mbxAcc */
5868 debugfs_remove(phba->idiag_mbx_acc);
5869 phba->idiag_mbx_acc = NULL;
5870
5871 /* iDiag ctlAcc */
5872 debugfs_remove(phba->idiag_ctl_acc);
5873 phba->idiag_ctl_acc = NULL;
5874
5875 /* iDiag drbAcc */
5876 debugfs_remove(phba->idiag_drb_acc);
5877 phba->idiag_drb_acc = NULL;
5878
5879 /* iDiag queAcc */
5880 debugfs_remove(phba->idiag_que_acc);
5881 phba->idiag_que_acc = NULL;
5882
5883 /* iDiag queInfo */
5884 debugfs_remove(phba->idiag_que_info);
5885 phba->idiag_que_info = NULL;
5886
5887 /* iDiag barAcc */
5888 debugfs_remove(phba->idiag_bar_acc);
5889 phba->idiag_bar_acc = NULL;
5890
5891 /* iDiag pciCfg */
5892 debugfs_remove(phba->idiag_pci_cfg);
5893 phba->idiag_pci_cfg = NULL;
5894
5895 /* Finally remove the iDiag debugfs root */
5896 debugfs_remove(phba->idiag_root);
5897 phba->idiag_root = NULL;
5898 }
5899
5900 if (phba->hba_debugfs_root) {
5901 debugfs_remove(phba->hba_debugfs_root); /* fnX */
5902 phba->hba_debugfs_root = NULL;
5903 atomic_dec(&lpfc_debugfs_hba_count);
5904 }
5905
5906 if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
5907 debugfs_remove(lpfc_debugfs_root); /* lpfc */
5908 lpfc_debugfs_root = NULL;
5909 }
5910 }
5911 #endif
5912 return;
5913 }
5914
5915 /*
5916 * Driver debug utility routines outside of debugfs. The debug utility
5917 * routines implemented here is intended to be used in the instrumented
5918 * debug driver for debugging host or port issues.
5919 */
5920
5921 /**
5922 * lpfc_debug_dump_all_queues - dump all the queues with a hba
5923 * @phba: Pointer to HBA context object.
5924 *
5925 * This function dumps entries of all the queues asociated with the @phba.
5926 **/
5927 void
5928 lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
5929 {
5930 int idx;
5931
5932 /*
5933 * Dump Work Queues (WQs)
5934 */
5935 lpfc_debug_dump_wq(phba, DUMP_MBX, 0);
5936 lpfc_debug_dump_wq(phba, DUMP_ELS, 0);
5937 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0);
5938
5939 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
5940 lpfc_debug_dump_wq(phba, DUMP_FCP, idx);
5941
5942 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
5943 lpfc_debug_dump_wq(phba, DUMP_NVME, idx);
5944
5945 lpfc_debug_dump_hdr_rq(phba);
5946 lpfc_debug_dump_dat_rq(phba);
5947 /*
5948 * Dump Complete Queues (CQs)
5949 */
5950 lpfc_debug_dump_cq(phba, DUMP_MBX, 0);
5951 lpfc_debug_dump_cq(phba, DUMP_ELS, 0);
5952 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0);
5953
5954 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
5955 lpfc_debug_dump_cq(phba, DUMP_FCP, idx);
5956
5957 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
5958 lpfc_debug_dump_cq(phba, DUMP_NVME, idx);
5959
5960 /*
5961 * Dump Event Queues (EQs)
5962 */
5963 for (idx = 0; idx < phba->io_channel_irqs; idx++)
5964 lpfc_debug_dump_hba_eq(phba, idx);
5965 }
Linux with added FPC-III support