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dmaengine: imx-sdma: Let the core do the device node validation
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_debugfs.c
blob1ee857d9d16580f64b011135e7dc69270cbbcbd7
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. 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 += scnprintf(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 += scnprintf(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 += scnprintf(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 += scnprintf(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 += scnprintf(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 += scnprintf(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 += scnprintf(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 += scnprintf(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 += scnprintf(buf + len, size - len,
345 "Unused\n");
346 goto skipit;
347 }
348 }
349 else {
350 if ((j >= hbqs->hbqPutIdx) &&
351 (j < (hbqs->entry_count+low))) {
352 len += scnprintf(buf + len, size - len,
353 "Unused\n");
354 goto skipit;
355 }
356 }
357
358 /* Get the Buffer info for the posted buffer */
359 list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) {
360 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
361 phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
362 if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
363 len += scnprintf(buf+len, size-len,
364 "Buf%d: %p %06x\n", i,
365 hbq_buf->dbuf.virt, hbq_buf->tag);
366 found = 1;
367 break;
368 }
369 i++;
370 }
371 if (!found) {
372 len += scnprintf(buf+len, size-len, "No DMAinfo?\n");
373 }
374 skipit:
375 hbqe++;
376 if (len > LPFC_HBQINFO_SIZE - 54)
377 break;
378 }
379 spin_unlock_irq(&phba->hbalock);
380 return len;
381 }
382
383 static int lpfc_debugfs_last_xripool;
384
385 /**
386 * lpfc_debugfs_common_xri_data - Dump Hardware Queue info to a buffer
387 * @phba: The HBA to gather host buffer info from.
388 * @buf: The buffer to dump log into.
389 * @size: The maximum amount of data to process.
390 *
391 * Description:
392 * This routine dumps the Hardware Queue info from the @phba to @buf up to
393 * @size number of bytes. A header that describes the current hdwq state will be
394 * dumped to @buf first and then info on each hdwq entry will be dumped to @buf
395 * until @size bytes have been dumped or all the hdwq info has been dumped.
396 *
397 * Notes:
398 * This routine will rotate through each configured Hardware Queue each
399 * time called.
400 *
401 * Return Value:
402 * This routine returns the amount of bytes that were dumped into @buf and will
403 * not exceed @size.
404 **/
405 static int
406 lpfc_debugfs_commonxripools_data(struct lpfc_hba *phba, char *buf, int size)
407 {
408 struct lpfc_sli4_hdw_queue *qp;
409 int len = 0;
410 int i, out;
411 unsigned long iflag;
412
413 for (i = 0; i < phba->cfg_hdw_queue; i++) {
414 if (len > (LPFC_DUMP_MULTIXRIPOOL_SIZE - 80))
415 break;
416 qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_xripool];
417
418 len += scnprintf(buf + len, size - len, "HdwQ %d Info ", i);
419 spin_lock_irqsave(&qp->abts_scsi_buf_list_lock, iflag);
420 spin_lock(&qp->abts_nvme_buf_list_lock);
421 spin_lock(&qp->io_buf_list_get_lock);
422 spin_lock(&qp->io_buf_list_put_lock);
423 out = qp->total_io_bufs - (qp->get_io_bufs + qp->put_io_bufs +
424 qp->abts_scsi_io_bufs + qp->abts_nvme_io_bufs);
425 len += scnprintf(buf + len, size - len,
426 "tot:%d get:%d put:%d mt:%d "
427 "ABTS scsi:%d nvme:%d Out:%d\n",
428 qp->total_io_bufs, qp->get_io_bufs, qp->put_io_bufs,
429 qp->empty_io_bufs, qp->abts_scsi_io_bufs,
430 qp->abts_nvme_io_bufs, out);
431 spin_unlock(&qp->io_buf_list_put_lock);
432 spin_unlock(&qp->io_buf_list_get_lock);
433 spin_unlock(&qp->abts_nvme_buf_list_lock);
434 spin_unlock_irqrestore(&qp->abts_scsi_buf_list_lock, iflag);
435
436 lpfc_debugfs_last_xripool++;
437 if (lpfc_debugfs_last_xripool >= phba->cfg_hdw_queue)
438 lpfc_debugfs_last_xripool = 0;
439 }
440
441 return len;
442 }
443
444 /**
445 * lpfc_debugfs_multixripools_data - Display multi-XRI pools information
446 * @phba: The HBA to gather host buffer info from.
447 * @buf: The buffer to dump log into.
448 * @size: The maximum amount of data to process.
449 *
450 * Description:
451 * This routine displays current multi-XRI pools information including XRI
452 * count in public, private and txcmplq. It also displays current high and
453 * low watermark.
454 *
455 * Return Value:
456 * This routine returns the amount of bytes that were dumped into @buf and will
457 * not exceed @size.
458 **/
459 static int
460 lpfc_debugfs_multixripools_data(struct lpfc_hba *phba, char *buf, int size)
461 {
462 u32 i;
463 u32 hwq_count;
464 struct lpfc_sli4_hdw_queue *qp;
465 struct lpfc_multixri_pool *multixri_pool;
466 struct lpfc_pvt_pool *pvt_pool;
467 struct lpfc_pbl_pool *pbl_pool;
468 u32 txcmplq_cnt;
469 char tmp[LPFC_DEBUG_OUT_LINE_SZ] = {0};
470
471 if (phba->sli_rev != LPFC_SLI_REV4)
472 return 0;
473
474 if (!phba->sli4_hba.hdwq)
475 return 0;
476
477 if (!phba->cfg_xri_rebalancing) {
478 i = lpfc_debugfs_commonxripools_data(phba, buf, size);
479 return i;
480 }
481
482 /*
483 * Pbl: Current number of free XRIs in public pool
484 * Pvt: Current number of free XRIs in private pool
485 * Busy: Current number of outstanding XRIs
486 * HWM: Current high watermark
487 * pvt_empty: Incremented by 1 when IO submission fails (no xri)
488 * pbl_empty: Incremented by 1 when all pbl_pool are empty during
489 * IO submission
490 */
491 scnprintf(tmp, sizeof(tmp),
492 "HWQ: Pbl Pvt Busy HWM | pvt_empty pbl_empty ");
493 if (strlcat(buf, tmp, size) >= size)
494 return strnlen(buf, size);
495
496 #ifdef LPFC_MXP_STAT
497 /*
498 * MAXH: Max high watermark seen so far
499 * above_lmt: Incremented by 1 if xri_owned > xri_limit during
500 * IO submission
501 * below_lmt: Incremented by 1 if xri_owned <= xri_limit during
502 * IO submission
503 * locPbl_hit: Incremented by 1 if successfully get a batch of XRI from
504 * local pbl_pool
505 * othPbl_hit: Incremented by 1 if successfully get a batch of XRI from
506 * other pbl_pool
507 */
508 scnprintf(tmp, sizeof(tmp),
509 "MAXH above_lmt below_lmt locPbl_hit othPbl_hit");
510 if (strlcat(buf, tmp, size) >= size)
511 return strnlen(buf, size);
512
513 /*
514 * sPbl: snapshot of Pbl 15 sec after stat gets cleared
515 * sPvt: snapshot of Pvt 15 sec after stat gets cleared
516 * sBusy: snapshot of Busy 15 sec after stat gets cleared
517 */
518 scnprintf(tmp, sizeof(tmp),
519 " | sPbl sPvt sBusy");
520 if (strlcat(buf, tmp, size) >= size)
521 return strnlen(buf, size);
522 #endif
523
524 scnprintf(tmp, sizeof(tmp), "\n");
525 if (strlcat(buf, tmp, size) >= size)
526 return strnlen(buf, size);
527
528 hwq_count = phba->cfg_hdw_queue;
529 for (i = 0; i < hwq_count; i++) {
530 qp = &phba->sli4_hba.hdwq[i];
531 multixri_pool = qp->p_multixri_pool;
532 if (!multixri_pool)
533 continue;
534 pbl_pool = &multixri_pool->pbl_pool;
535 pvt_pool = &multixri_pool->pvt_pool;
536 txcmplq_cnt = qp->fcp_wq->pring->txcmplq_cnt;
537 if (qp->nvme_wq)
538 txcmplq_cnt += qp->nvme_wq->pring->txcmplq_cnt;
539
540 scnprintf(tmp, sizeof(tmp),
541 "%03d: %4d %4d %4d %4d | %10d %10d ",
542 i, pbl_pool->count, pvt_pool->count,
543 txcmplq_cnt, pvt_pool->high_watermark,
544 qp->empty_io_bufs, multixri_pool->pbl_empty_count);
545 if (strlcat(buf, tmp, size) >= size)
546 break;
547
548 #ifdef LPFC_MXP_STAT
549 scnprintf(tmp, sizeof(tmp),
550 "%4d %10d %10d %10d %10d",
551 multixri_pool->stat_max_hwm,
552 multixri_pool->above_limit_count,
553 multixri_pool->below_limit_count,
554 multixri_pool->local_pbl_hit_count,
555 multixri_pool->other_pbl_hit_count);
556 if (strlcat(buf, tmp, size) >= size)
557 break;
558
559 scnprintf(tmp, sizeof(tmp),
560 " | %4d %4d %5d",
561 multixri_pool->stat_pbl_count,
562 multixri_pool->stat_pvt_count,
563 multixri_pool->stat_busy_count);
564 if (strlcat(buf, tmp, size) >= size)
565 break;
566 #endif
567
568 scnprintf(tmp, sizeof(tmp), "\n");
569 if (strlcat(buf, tmp, size) >= size)
570 break;
571 }
572 return strnlen(buf, size);
573 }
574
575
576 #ifdef LPFC_HDWQ_LOCK_STAT
577 static int lpfc_debugfs_last_lock;
578
579 /**
580 * lpfc_debugfs_lockstat_data - Dump Hardware Queue info to a buffer
581 * @phba: The HBA to gather host buffer info from.
582 * @buf: The buffer to dump log into.
583 * @size: The maximum amount of data to process.
584 *
585 * Description:
586 * This routine dumps the Hardware Queue info from the @phba to @buf up to
587 * @size number of bytes. A header that describes the current hdwq state will be
588 * dumped to @buf first and then info on each hdwq entry will be dumped to @buf
589 * until @size bytes have been dumped or all the hdwq info has been dumped.
590 *
591 * Notes:
592 * This routine will rotate through each configured Hardware Queue each
593 * time called.
594 *
595 * Return Value:
596 * This routine returns the amount of bytes that were dumped into @buf and will
597 * not exceed @size.
598 **/
599 static int
600 lpfc_debugfs_lockstat_data(struct lpfc_hba *phba, char *buf, int size)
601 {
602 struct lpfc_sli4_hdw_queue *qp;
603 int len = 0;
604 int i;
605
606 if (phba->sli_rev != LPFC_SLI_REV4)
607 return 0;
608
609 if (!phba->sli4_hba.hdwq)
610 return 0;
611
612 for (i = 0; i < phba->cfg_hdw_queue; i++) {
613 if (len > (LPFC_HDWQINFO_SIZE - 100))
614 break;
615 qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_lock];
616
617 len += scnprintf(buf + len, size - len, "HdwQ %03d Lock ", i);
618 if (phba->cfg_xri_rebalancing) {
619 len += scnprintf(buf + len, size - len,
620 "get_pvt:%d mv_pvt:%d "
621 "mv2pub:%d mv2pvt:%d "
622 "put_pvt:%d put_pub:%d wq:%d\n",
623 qp->lock_conflict.alloc_pvt_pool,
624 qp->lock_conflict.mv_from_pvt_pool,
625 qp->lock_conflict.mv_to_pub_pool,
626 qp->lock_conflict.mv_to_pvt_pool,
627 qp->lock_conflict.free_pvt_pool,
628 qp->lock_conflict.free_pub_pool,
629 qp->lock_conflict.wq_access);
630 } else {
631 len += scnprintf(buf + len, size - len,
632 "get:%d put:%d free:%d wq:%d\n",
633 qp->lock_conflict.alloc_xri_get,
634 qp->lock_conflict.alloc_xri_put,
635 qp->lock_conflict.free_xri,
636 qp->lock_conflict.wq_access);
637 }
638
639 lpfc_debugfs_last_lock++;
640 if (lpfc_debugfs_last_lock >= phba->cfg_hdw_queue)
641 lpfc_debugfs_last_lock = 0;
642 }
643
644 return len;
645 }
646 #endif
647
648 static int lpfc_debugfs_last_hba_slim_off;
649
650 /**
651 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer
652 * @phba: The HBA to gather SLIM info from.
653 * @buf: The buffer to dump log into.
654 * @size: The maximum amount of data to process.
655 *
656 * Description:
657 * This routine dumps the current contents of HBA SLIM for the HBA associated
658 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data.
659 *
660 * Notes:
661 * This routine will only dump up to 1024 bytes of data each time called and
662 * should be called multiple times to dump the entire HBA SLIM.
663 *
664 * Return Value:
665 * This routine returns the amount of bytes that were dumped into @buf and will
666 * not exceed @size.
667 **/
668 static int
669 lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
670 {
671 int len = 0;
672 int i, off;
673 uint32_t *ptr;
674 char *buffer;
675
676 buffer = kmalloc(1024, GFP_KERNEL);
677 if (!buffer)
678 return 0;
679
680 off = 0;
681 spin_lock_irq(&phba->hbalock);
682
683 len += scnprintf(buf+len, size-len, "HBA SLIM\n");
684 lpfc_memcpy_from_slim(buffer,
685 phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
686
687 ptr = (uint32_t *)&buffer[0];
688 off = lpfc_debugfs_last_hba_slim_off;
689
690 /* Set it up for the next time */
691 lpfc_debugfs_last_hba_slim_off += 1024;
692 if (lpfc_debugfs_last_hba_slim_off >= 4096)
693 lpfc_debugfs_last_hba_slim_off = 0;
694
695 i = 1024;
696 while (i > 0) {
697 len += scnprintf(buf+len, size-len,
698 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
699 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
700 *(ptr+5), *(ptr+6), *(ptr+7));
701 ptr += 8;
702 i -= (8 * sizeof(uint32_t));
703 off += (8 * sizeof(uint32_t));
704 }
705
706 spin_unlock_irq(&phba->hbalock);
707 kfree(buffer);
708
709 return len;
710 }
711
712 /**
713 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer
714 * @phba: The HBA to gather Host SLIM info from.
715 * @buf: The buffer to dump log into.
716 * @size: The maximum amount of data to process.
717 *
718 * Description:
719 * This routine dumps the current contents of host SLIM for the host associated
720 * with @phba to @buf up to @size bytes of data. The dump will contain the
721 * Mailbox, PCB, Rings, and Registers that are located in host memory.
722 *
723 * Return Value:
724 * This routine returns the amount of bytes that were dumped into @buf and will
725 * not exceed @size.
726 **/
727 static int
728 lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
729 {
730 int len = 0;
731 int i, off;
732 uint32_t word0, word1, word2, word3;
733 uint32_t *ptr;
734 struct lpfc_pgp *pgpp;
735 struct lpfc_sli *psli = &phba->sli;
736 struct lpfc_sli_ring *pring;
737
738 off = 0;
739 spin_lock_irq(&phba->hbalock);
740
741 len += scnprintf(buf+len, size-len, "SLIM Mailbox\n");
742 ptr = (uint32_t *)phba->slim2p.virt;
743 i = sizeof(MAILBOX_t);
744 while (i > 0) {
745 len += scnprintf(buf+len, size-len,
746 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
747 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
748 *(ptr+5), *(ptr+6), *(ptr+7));
749 ptr += 8;
750 i -= (8 * sizeof(uint32_t));
751 off += (8 * sizeof(uint32_t));
752 }
753
754 len += scnprintf(buf+len, size-len, "SLIM PCB\n");
755 ptr = (uint32_t *)phba->pcb;
756 i = sizeof(PCB_t);
757 while (i > 0) {
758 len += scnprintf(buf+len, size-len,
759 "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
760 off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
761 *(ptr+5), *(ptr+6), *(ptr+7));
762 ptr += 8;
763 i -= (8 * sizeof(uint32_t));
764 off += (8 * sizeof(uint32_t));
765 }
766
767 if (phba->sli_rev <= LPFC_SLI_REV3) {
768 for (i = 0; i < 4; i++) {
769 pgpp = &phba->port_gp[i];
770 pring = &psli->sli3_ring[i];
771 len += scnprintf(buf+len, size-len,
772 "Ring %d: CMD GetInx:%d "
773 "(Max:%d Next:%d "
774 "Local:%d flg:x%x) "
775 "RSP PutInx:%d Max:%d\n",
776 i, pgpp->cmdGetInx,
777 pring->sli.sli3.numCiocb,
778 pring->sli.sli3.next_cmdidx,
779 pring->sli.sli3.local_getidx,
780 pring->flag, pgpp->rspPutInx,
781 pring->sli.sli3.numRiocb);
782 }
783
784 word0 = readl(phba->HAregaddr);
785 word1 = readl(phba->CAregaddr);
786 word2 = readl(phba->HSregaddr);
787 word3 = readl(phba->HCregaddr);
788 len += scnprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
789 "HC:%08x\n", word0, word1, word2, word3);
790 }
791 spin_unlock_irq(&phba->hbalock);
792 return len;
793 }
794
795 /**
796 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer
797 * @vport: The vport to gather target node info from.
798 * @buf: The buffer to dump log into.
799 * @size: The maximum amount of data to process.
800 *
801 * Description:
802 * This routine dumps the current target node list associated with @vport to
803 * @buf up to @size bytes of data. Each node entry in the dump will contain a
804 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
805 *
806 * Return Value:
807 * This routine returns the amount of bytes that were dumped into @buf and will
808 * not exceed @size.
809 **/
810 static int
811 lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
812 {
813 int len = 0;
814 int i, iocnt, outio, cnt;
815 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
816 struct lpfc_hba *phba = vport->phba;
817 struct lpfc_nodelist *ndlp;
818 unsigned char *statep;
819 struct nvme_fc_local_port *localport;
820 struct nvme_fc_remote_port *nrport = NULL;
821 struct lpfc_nvme_rport *rport;
822
823 cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
824 outio = 0;
825
826 len += scnprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n");
827 spin_lock_irq(shost->host_lock);
828 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
829 iocnt = 0;
830 if (!cnt) {
831 len += scnprintf(buf+len, size-len,
832 "Missing Nodelist Entries\n");
833 break;
834 }
835 cnt--;
836 switch (ndlp->nlp_state) {
837 case NLP_STE_UNUSED_NODE:
838 statep = "UNUSED";
839 break;
840 case NLP_STE_PLOGI_ISSUE:
841 statep = "PLOGI ";
842 break;
843 case NLP_STE_ADISC_ISSUE:
844 statep = "ADISC ";
845 break;
846 case NLP_STE_REG_LOGIN_ISSUE:
847 statep = "REGLOG";
848 break;
849 case NLP_STE_PRLI_ISSUE:
850 statep = "PRLI ";
851 break;
852 case NLP_STE_LOGO_ISSUE:
853 statep = "LOGO ";
854 break;
855 case NLP_STE_UNMAPPED_NODE:
856 statep = "UNMAP ";
857 iocnt = 1;
858 break;
859 case NLP_STE_MAPPED_NODE:
860 statep = "MAPPED";
861 iocnt = 1;
862 break;
863 case NLP_STE_NPR_NODE:
864 statep = "NPR ";
865 break;
866 default:
867 statep = "UNKNOWN";
868 }
869 len += scnprintf(buf+len, size-len, "%s DID:x%06x ",
870 statep, ndlp->nlp_DID);
871 len += scnprintf(buf+len, size-len,
872 "WWPN x%llx ",
873 wwn_to_u64(ndlp->nlp_portname.u.wwn));
874 len += scnprintf(buf+len, size-len,
875 "WWNN x%llx ",
876 wwn_to_u64(ndlp->nlp_nodename.u.wwn));
877 if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
878 len += scnprintf(buf+len, size-len, "RPI:%03d ",
879 ndlp->nlp_rpi);
880 else
881 len += scnprintf(buf+len, size-len, "RPI:none ");
882 len += scnprintf(buf+len, size-len, "flag:x%08x ",
883 ndlp->nlp_flag);
884 if (!ndlp->nlp_type)
885 len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE ");
886 if (ndlp->nlp_type & NLP_FC_NODE)
887 len += scnprintf(buf+len, size-len, "FC_NODE ");
888 if (ndlp->nlp_type & NLP_FABRIC) {
889 len += scnprintf(buf+len, size-len, "FABRIC ");
890 iocnt = 0;
891 }
892 if (ndlp->nlp_type & NLP_FCP_TARGET)
893 len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ",
894 ndlp->nlp_sid);
895 if (ndlp->nlp_type & NLP_FCP_INITIATOR)
896 len += scnprintf(buf+len, size-len, "FCP_INITIATOR ");
897 if (ndlp->nlp_type & NLP_NVME_TARGET)
898 len += scnprintf(buf + len,
899 size - len, "NVME_TGT sid:%d ",
900 NLP_NO_SID);
901 if (ndlp->nlp_type & NLP_NVME_INITIATOR)
902 len += scnprintf(buf + len,
903 size - len, "NVME_INITIATOR ");
904 len += scnprintf(buf+len, size-len, "usgmap:%x ",
905 ndlp->nlp_usg_map);
906 len += scnprintf(buf+len, size-len, "refcnt:%x",
907 kref_read(&ndlp->kref));
908 if (iocnt) {
909 i = atomic_read(&ndlp->cmd_pending);
910 len += scnprintf(buf + len, size - len,
911 " OutIO:x%x Qdepth x%x",
912 i, ndlp->cmd_qdepth);
913 outio += i;
914 }
915 len += scnprintf(buf + len, size - len, "defer:%x ",
916 ndlp->nlp_defer_did);
917 len += scnprintf(buf+len, size-len, "\n");
918 }
919 spin_unlock_irq(shost->host_lock);
920
921 len += scnprintf(buf + len, size - len,
922 "\nOutstanding IO x%x\n", outio);
923
924 if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) {
925 len += scnprintf(buf + len, size - len,
926 "\nNVME Targetport Entry ...\n");
927
928 /* Port state is only one of two values for now. */
929 if (phba->targetport->port_id)
930 statep = "REGISTERED";
931 else
932 statep = "INIT";
933 len += scnprintf(buf + len, size - len,
934 "TGT WWNN x%llx WWPN x%llx State %s\n",
935 wwn_to_u64(vport->fc_nodename.u.wwn),
936 wwn_to_u64(vport->fc_portname.u.wwn),
937 statep);
938 len += scnprintf(buf + len, size - len,
939 " Targetport DID x%06x\n",
940 phba->targetport->port_id);
941 goto out_exit;
942 }
943
944 len += scnprintf(buf + len, size - len,
945 "\nNVME Lport/Rport Entries ...\n");
946
947 localport = vport->localport;
948 if (!localport)
949 goto out_exit;
950
951 spin_lock_irq(shost->host_lock);
952
953 /* Port state is only one of two values for now. */
954 if (localport->port_id)
955 statep = "ONLINE";
956 else
957 statep = "UNKNOWN ";
958
959 len += scnprintf(buf + len, size - len,
960 "Lport DID x%06x PortState %s\n",
961 localport->port_id, statep);
962
963 len += scnprintf(buf + len, size - len, "\tRport List:\n");
964 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
965 /* local short-hand pointer. */
966 spin_lock(&phba->hbalock);
967 rport = lpfc_ndlp_get_nrport(ndlp);
968 if (rport)
969 nrport = rport->remoteport;
970 else
971 nrport = NULL;
972 spin_unlock(&phba->hbalock);
973 if (!nrport)
974 continue;
975
976 /* Port state is only one of two values for now. */
977 switch (nrport->port_state) {
978 case FC_OBJSTATE_ONLINE:
979 statep = "ONLINE";
980 break;
981 case FC_OBJSTATE_UNKNOWN:
982 statep = "UNKNOWN ";
983 break;
984 default:
985 statep = "UNSUPPORTED";
986 break;
987 }
988
989 /* Tab in to show lport ownership. */
990 len += scnprintf(buf + len, size - len,
991 "\t%s Port ID:x%06x ",
992 statep, nrport->port_id);
993 len += scnprintf(buf + len, size - len, "WWPN x%llx ",
994 nrport->port_name);
995 len += scnprintf(buf + len, size - len, "WWNN x%llx ",
996 nrport->node_name);
997
998 /* An NVME rport can have multiple roles. */
999 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR)
1000 len += scnprintf(buf + len, size - len,
1001 "INITIATOR ");
1002 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET)
1003 len += scnprintf(buf + len, size - len,
1004 "TARGET ");
1005 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY)
1006 len += scnprintf(buf + len, size - len,
1007 "DISCSRVC ");
1008 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
1009 FC_PORT_ROLE_NVME_TARGET |
1010 FC_PORT_ROLE_NVME_DISCOVERY))
1011 len += scnprintf(buf + len, size - len,
1012 "UNKNOWN ROLE x%x",
1013 nrport->port_role);
1014 /* Terminate the string. */
1015 len += scnprintf(buf + len, size - len, "\n");
1016 }
1017
1018 spin_unlock_irq(shost->host_lock);
1019 out_exit:
1020 return len;
1021 }
1022
1023 /**
1024 * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer
1025 * @vport: The vport to gather target node info from.
1026 * @buf: The buffer to dump log into.
1027 * @size: The maximum amount of data to process.
1028 *
1029 * Description:
1030 * This routine dumps the NVME statistics associated with @vport
1031 *
1032 * Return Value:
1033 * This routine returns the amount of bytes that were dumped into @buf and will
1034 * not exceed @size.
1035 **/
1036 static int
1037 lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
1038 {
1039 struct lpfc_hba *phba = vport->phba;
1040 struct lpfc_nvmet_tgtport *tgtp;
1041 struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp;
1042 struct nvme_fc_local_port *localport;
1043 struct lpfc_fc4_ctrl_stat *cstat;
1044 struct lpfc_nvme_lport *lport;
1045 uint64_t data1, data2, data3;
1046 uint64_t tot, totin, totout;
1047 int cnt, i;
1048 int len = 0;
1049
1050 if (phba->nvmet_support) {
1051 if (!phba->targetport)
1052 return len;
1053 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
1054 len += scnprintf(buf + len, size - len,
1055 "\nNVME Targetport Statistics\n");
1056
1057 len += scnprintf(buf + len, size - len,
1058 "LS: Rcv %08x Drop %08x Abort %08x\n",
1059 atomic_read(&tgtp->rcv_ls_req_in),
1060 atomic_read(&tgtp->rcv_ls_req_drop),
1061 atomic_read(&tgtp->xmt_ls_abort));
1062 if (atomic_read(&tgtp->rcv_ls_req_in) !=
1063 atomic_read(&tgtp->rcv_ls_req_out)) {
1064 len += scnprintf(buf + len, size - len,
1065 "Rcv LS: in %08x != out %08x\n",
1066 atomic_read(&tgtp->rcv_ls_req_in),
1067 atomic_read(&tgtp->rcv_ls_req_out));
1068 }
1069
1070 len += scnprintf(buf + len, size - len,
1071 "LS: Xmt %08x Drop %08x Cmpl %08x\n",
1072 atomic_read(&tgtp->xmt_ls_rsp),
1073 atomic_read(&tgtp->xmt_ls_drop),
1074 atomic_read(&tgtp->xmt_ls_rsp_cmpl));
1075
1076 len += scnprintf(buf + len, size - len,
1077 "LS: RSP Abort %08x xb %08x Err %08x\n",
1078 atomic_read(&tgtp->xmt_ls_rsp_aborted),
1079 atomic_read(&tgtp->xmt_ls_rsp_xb_set),
1080 atomic_read(&tgtp->xmt_ls_rsp_error));
1081
1082 len += scnprintf(buf + len, size - len,
1083 "FCP: Rcv %08x Defer %08x Release %08x "
1084 "Drop %08x\n",
1085 atomic_read(&tgtp->rcv_fcp_cmd_in),
1086 atomic_read(&tgtp->rcv_fcp_cmd_defer),
1087 atomic_read(&tgtp->xmt_fcp_release),
1088 atomic_read(&tgtp->rcv_fcp_cmd_drop));
1089
1090 if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
1091 atomic_read(&tgtp->rcv_fcp_cmd_out)) {
1092 len += scnprintf(buf + len, size - len,
1093 "Rcv FCP: in %08x != out %08x\n",
1094 atomic_read(&tgtp->rcv_fcp_cmd_in),
1095 atomic_read(&tgtp->rcv_fcp_cmd_out));
1096 }
1097
1098 len += scnprintf(buf + len, size - len,
1099 "FCP Rsp: read %08x readrsp %08x "
1100 "write %08x rsp %08x\n",
1101 atomic_read(&tgtp->xmt_fcp_read),
1102 atomic_read(&tgtp->xmt_fcp_read_rsp),
1103 atomic_read(&tgtp->xmt_fcp_write),
1104 atomic_read(&tgtp->xmt_fcp_rsp));
1105
1106 len += scnprintf(buf + len, size - len,
1107 "FCP Rsp Cmpl: %08x err %08x drop %08x\n",
1108 atomic_read(&tgtp->xmt_fcp_rsp_cmpl),
1109 atomic_read(&tgtp->xmt_fcp_rsp_error),
1110 atomic_read(&tgtp->xmt_fcp_rsp_drop));
1111
1112 len += scnprintf(buf + len, size - len,
1113 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n",
1114 atomic_read(&tgtp->xmt_fcp_rsp_aborted),
1115 atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
1116 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
1117
1118 len += scnprintf(buf + len, size - len,
1119 "ABORT: Xmt %08x Cmpl %08x\n",
1120 atomic_read(&tgtp->xmt_fcp_abort),
1121 atomic_read(&tgtp->xmt_fcp_abort_cmpl));
1122
1123 len += scnprintf(buf + len, size - len,
1124 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x",
1125 atomic_read(&tgtp->xmt_abort_sol),
1126 atomic_read(&tgtp->xmt_abort_unsol),
1127 atomic_read(&tgtp->xmt_abort_rsp),
1128 atomic_read(&tgtp->xmt_abort_rsp_error));
1129
1130 len += scnprintf(buf + len, size - len, "\n");
1131
1132 cnt = 0;
1133 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1134 list_for_each_entry_safe(ctxp, next_ctxp,
1135 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1136 list) {
1137 cnt++;
1138 }
1139 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1140 if (cnt) {
1141 len += scnprintf(buf + len, size - len,
1142 "ABORT: %d ctx entries\n", cnt);
1143 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1144 list_for_each_entry_safe(ctxp, next_ctxp,
1145 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1146 list) {
1147 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ))
1148 break;
1149 len += scnprintf(buf + len, size - len,
1150 "Entry: oxid %x state %x "
1151 "flag %x\n",
1152 ctxp->oxid, ctxp->state,
1153 ctxp->flag);
1154 }
1155 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1156 }
1157
1158 /* Calculate outstanding IOs */
1159 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
1160 tot += atomic_read(&tgtp->xmt_fcp_release);
1161 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
1162
1163 len += scnprintf(buf + len, size - len,
1164 "IO_CTX: %08x WAIT: cur %08x tot %08x\n"
1165 "CTX Outstanding %08llx\n",
1166 phba->sli4_hba.nvmet_xri_cnt,
1167 phba->sli4_hba.nvmet_io_wait_cnt,
1168 phba->sli4_hba.nvmet_io_wait_total,
1169 tot);
1170 } else {
1171 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
1172 return len;
1173
1174 localport = vport->localport;
1175 if (!localport)
1176 return len;
1177 lport = (struct lpfc_nvme_lport *)localport->private;
1178 if (!lport)
1179 return len;
1180
1181 len += scnprintf(buf + len, size - len,
1182 "\nNVME HDWQ Statistics\n");
1183
1184 len += scnprintf(buf + len, size - len,
1185 "LS: Xmt %016x Cmpl %016x\n",
1186 atomic_read(&lport->fc4NvmeLsRequests),
1187 atomic_read(&lport->fc4NvmeLsCmpls));
1188
1189 totin = 0;
1190 totout = 0;
1191 for (i = 0; i < phba->cfg_hdw_queue; i++) {
1192 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat;
1193 tot = cstat->io_cmpls;
1194 totin += tot;
1195 data1 = cstat->input_requests;
1196 data2 = cstat->output_requests;
1197 data3 = cstat->control_requests;
1198 totout += (data1 + data2 + data3);
1199
1200 /* Limit to 32, debugfs display buffer limitation */
1201 if (i >= 32)
1202 continue;
1203
1204 len += scnprintf(buf + len, PAGE_SIZE - len,
1205 "HDWQ (%d): Rd %016llx Wr %016llx "
1206 "IO %016llx ",
1207 i, data1, data2, data3);
1208 len += scnprintf(buf + len, PAGE_SIZE - len,
1209 "Cmpl %016llx OutIO %016llx\n",
1210 tot, ((data1 + data2 + data3) - tot));
1211 }
1212 len += scnprintf(buf + len, PAGE_SIZE - len,
1213 "Total FCP Cmpl %016llx Issue %016llx "
1214 "OutIO %016llx\n",
1215 totin, totout, totout - totin);
1216
1217 len += scnprintf(buf + len, size - len,
1218 "LS Xmt Err: Abrt %08x Err %08x "
1219 "Cmpl Err: xb %08x Err %08x\n",
1220 atomic_read(&lport->xmt_ls_abort),
1221 atomic_read(&lport->xmt_ls_err),
1222 atomic_read(&lport->cmpl_ls_xb),
1223 atomic_read(&lport->cmpl_ls_err));
1224
1225 len += scnprintf(buf + len, size - len,
1226 "FCP Xmt Err: noxri %06x nondlp %06x "
1227 "qdepth %06x wqerr %06x err %06x Abrt %06x\n",
1228 atomic_read(&lport->xmt_fcp_noxri),
1229 atomic_read(&lport->xmt_fcp_bad_ndlp),
1230 atomic_read(&lport->xmt_fcp_qdepth),
1231 atomic_read(&lport->xmt_fcp_wqerr),
1232 atomic_read(&lport->xmt_fcp_err),
1233 atomic_read(&lport->xmt_fcp_abort));
1234
1235 len += scnprintf(buf + len, size - len,
1236 "FCP Cmpl Err: xb %08x Err %08x\n",
1237 atomic_read(&lport->cmpl_fcp_xb),
1238 atomic_read(&lport->cmpl_fcp_err));
1239
1240 }
1241
1242 return len;
1243 }
1244
1245 /**
1246 * lpfc_debugfs_scsistat_data - Dump target node list to a buffer
1247 * @vport: The vport to gather target node info from.
1248 * @buf: The buffer to dump log into.
1249 * @size: The maximum amount of data to process.
1250 *
1251 * Description:
1252 * This routine dumps the SCSI statistics associated with @vport
1253 *
1254 * Return Value:
1255 * This routine returns the amount of bytes that were dumped into @buf and will
1256 * not exceed @size.
1257 **/
1258 static int
1259 lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size)
1260 {
1261 int len;
1262 struct lpfc_hba *phba = vport->phba;
1263 struct lpfc_fc4_ctrl_stat *cstat;
1264 u64 data1, data2, data3;
1265 u64 tot, totin, totout;
1266 int i;
1267 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0};
1268
1269 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ||
1270 (phba->sli_rev != LPFC_SLI_REV4))
1271 return 0;
1272
1273 scnprintf(buf, size, "SCSI HDWQ Statistics\n");
1274
1275 totin = 0;
1276 totout = 0;
1277 for (i = 0; i < phba->cfg_hdw_queue; i++) {
1278 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat;
1279 tot = cstat->io_cmpls;
1280 totin += tot;
1281 data1 = cstat->input_requests;
1282 data2 = cstat->output_requests;
1283 data3 = cstat->control_requests;
1284 totout += (data1 + data2 + data3);
1285
1286 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx "
1287 "IO %016llx ", i, data1, data2, data3);
1288 if (strlcat(buf, tmp, size) >= size)
1289 goto buffer_done;
1290
1291 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n",
1292 tot, ((data1 + data2 + data3) - tot));
1293 if (strlcat(buf, tmp, size) >= size)
1294 goto buffer_done;
1295 }
1296 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx "
1297 "OutIO %016llx\n", totin, totout, totout - totin);
1298 strlcat(buf, tmp, size);
1299
1300 buffer_done:
1301 len = strnlen(buf, size);
1302
1303 return len;
1304 }
1305
1306 /**
1307 * lpfc_debugfs_nvmektime_data - Dump target node list to a buffer
1308 * @vport: The vport to gather target node info from.
1309 * @buf: The buffer to dump log into.
1310 * @size: The maximum amount of data to process.
1311 *
1312 * Description:
1313 * This routine dumps the NVME statistics associated with @vport
1314 *
1315 * Return Value:
1316 * This routine returns the amount of bytes that were dumped into @buf and will
1317 * not exceed @size.
1318 **/
1319 static int
1320 lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size)
1321 {
1322 struct lpfc_hba *phba = vport->phba;
1323 int len = 0;
1324
1325 if (phba->nvmet_support == 0) {
1326 /* NVME Initiator */
1327 len += scnprintf(buf + len, PAGE_SIZE - len,
1328 "ktime %s: Total Samples: %lld\n",
1329 (phba->ktime_on ? "Enabled" : "Disabled"),
1330 phba->ktime_data_samples);
1331 if (phba->ktime_data_samples == 0)
1332 return len;
1333
1334 len += scnprintf(
1335 buf + len, PAGE_SIZE - len,
1336 "Segment 1: Last NVME Cmd cmpl "
1337 "done -to- Start of next NVME cnd (in driver)\n");
1338 len += scnprintf(
1339 buf + len, PAGE_SIZE - len,
1340 "avg:%08lld min:%08lld max %08lld\n",
1341 div_u64(phba->ktime_seg1_total,
1342 phba->ktime_data_samples),
1343 phba->ktime_seg1_min,
1344 phba->ktime_seg1_max);
1345 len += scnprintf(
1346 buf + len, PAGE_SIZE - len,
1347 "Segment 2: Driver start of NVME cmd "
1348 "-to- Firmware WQ doorbell\n");
1349 len += scnprintf(
1350 buf + len, PAGE_SIZE - len,
1351 "avg:%08lld min:%08lld max %08lld\n",
1352 div_u64(phba->ktime_seg2_total,
1353 phba->ktime_data_samples),
1354 phba->ktime_seg2_min,
1355 phba->ktime_seg2_max);
1356 len += scnprintf(
1357 buf + len, PAGE_SIZE - len,
1358 "Segment 3: Firmware WQ doorbell -to- "
1359 "MSI-X ISR cmpl\n");
1360 len += scnprintf(
1361 buf + len, PAGE_SIZE - len,
1362 "avg:%08lld min:%08lld max %08lld\n",
1363 div_u64(phba->ktime_seg3_total,
1364 phba->ktime_data_samples),
1365 phba->ktime_seg3_min,
1366 phba->ktime_seg3_max);
1367 len += scnprintf(
1368 buf + len, PAGE_SIZE - len,
1369 "Segment 4: MSI-X ISR cmpl -to- "
1370 "NVME cmpl done\n");
1371 len += scnprintf(
1372 buf + len, PAGE_SIZE - len,
1373 "avg:%08lld min:%08lld max %08lld\n",
1374 div_u64(phba->ktime_seg4_total,
1375 phba->ktime_data_samples),
1376 phba->ktime_seg4_min,
1377 phba->ktime_seg4_max);
1378 len += scnprintf(
1379 buf + len, PAGE_SIZE - len,
1380 "Total IO avg time: %08lld\n",
1381 div_u64(phba->ktime_seg1_total +
1382 phba->ktime_seg2_total +
1383 phba->ktime_seg3_total +
1384 phba->ktime_seg4_total,
1385 phba->ktime_data_samples));
1386 return len;
1387 }
1388
1389 /* NVME Target */
1390 len += scnprintf(buf + len, PAGE_SIZE-len,
1391 "ktime %s: Total Samples: %lld %lld\n",
1392 (phba->ktime_on ? "Enabled" : "Disabled"),
1393 phba->ktime_data_samples,
1394 phba->ktime_status_samples);
1395 if (phba->ktime_data_samples == 0)
1396 return len;
1397
1398 len += scnprintf(buf + len, PAGE_SIZE-len,
1399 "Segment 1: MSI-X ISR Rcv cmd -to- "
1400 "cmd pass to NVME Layer\n");
1401 len += scnprintf(buf + len, PAGE_SIZE-len,
1402 "avg:%08lld min:%08lld max %08lld\n",
1403 div_u64(phba->ktime_seg1_total,
1404 phba->ktime_data_samples),
1405 phba->ktime_seg1_min,
1406 phba->ktime_seg1_max);
1407 len += scnprintf(buf + len, PAGE_SIZE-len,
1408 "Segment 2: cmd pass to NVME Layer- "
1409 "-to- Driver rcv cmd OP (action)\n");
1410 len += scnprintf(buf + len, PAGE_SIZE-len,
1411 "avg:%08lld min:%08lld max %08lld\n",
1412 div_u64(phba->ktime_seg2_total,
1413 phba->ktime_data_samples),
1414 phba->ktime_seg2_min,
1415 phba->ktime_seg2_max);
1416 len += scnprintf(buf + len, PAGE_SIZE-len,
1417 "Segment 3: Driver rcv cmd OP -to- "
1418 "Firmware WQ doorbell: cmd\n");
1419 len += scnprintf(buf + len, PAGE_SIZE-len,
1420 "avg:%08lld min:%08lld max %08lld\n",
1421 div_u64(phba->ktime_seg3_total,
1422 phba->ktime_data_samples),
1423 phba->ktime_seg3_min,
1424 phba->ktime_seg3_max);
1425 len += scnprintf(buf + len, PAGE_SIZE-len,
1426 "Segment 4: Firmware WQ doorbell: cmd "
1427 "-to- MSI-X ISR for cmd cmpl\n");
1428 len += scnprintf(buf + len, PAGE_SIZE-len,
1429 "avg:%08lld min:%08lld max %08lld\n",
1430 div_u64(phba->ktime_seg4_total,
1431 phba->ktime_data_samples),
1432 phba->ktime_seg4_min,
1433 phba->ktime_seg4_max);
1434 len += scnprintf(buf + len, PAGE_SIZE-len,
1435 "Segment 5: MSI-X ISR for cmd cmpl "
1436 "-to- NVME layer passed cmd done\n");
1437 len += scnprintf(buf + len, PAGE_SIZE-len,
1438 "avg:%08lld min:%08lld max %08lld\n",
1439 div_u64(phba->ktime_seg5_total,
1440 phba->ktime_data_samples),
1441 phba->ktime_seg5_min,
1442 phba->ktime_seg5_max);
1443
1444 if (phba->ktime_status_samples == 0) {
1445 len += scnprintf(buf + len, PAGE_SIZE-len,
1446 "Total: cmd received by MSI-X ISR "
1447 "-to- cmd completed on wire\n");
1448 len += scnprintf(buf + len, PAGE_SIZE-len,
1449 "avg:%08lld min:%08lld "
1450 "max %08lld\n",
1451 div_u64(phba->ktime_seg10_total,
1452 phba->ktime_data_samples),
1453 phba->ktime_seg10_min,
1454 phba->ktime_seg10_max);
1455 return len;
1456 }
1457
1458 len += scnprintf(buf + len, PAGE_SIZE-len,
1459 "Segment 6: NVME layer passed cmd done "
1460 "-to- Driver rcv rsp status OP\n");
1461 len += scnprintf(buf + len, PAGE_SIZE-len,
1462 "avg:%08lld min:%08lld max %08lld\n",
1463 div_u64(phba->ktime_seg6_total,
1464 phba->ktime_status_samples),
1465 phba->ktime_seg6_min,
1466 phba->ktime_seg6_max);
1467 len += scnprintf(buf + len, PAGE_SIZE-len,
1468 "Segment 7: Driver rcv rsp status OP "
1469 "-to- Firmware WQ doorbell: status\n");
1470 len += scnprintf(buf + len, PAGE_SIZE-len,
1471 "avg:%08lld min:%08lld max %08lld\n",
1472 div_u64(phba->ktime_seg7_total,
1473 phba->ktime_status_samples),
1474 phba->ktime_seg7_min,
1475 phba->ktime_seg7_max);
1476 len += scnprintf(buf + len, PAGE_SIZE-len,
1477 "Segment 8: Firmware WQ doorbell: status"
1478 " -to- MSI-X ISR for status cmpl\n");
1479 len += scnprintf(buf + len, PAGE_SIZE-len,
1480 "avg:%08lld min:%08lld max %08lld\n",
1481 div_u64(phba->ktime_seg8_total,
1482 phba->ktime_status_samples),
1483 phba->ktime_seg8_min,
1484 phba->ktime_seg8_max);
1485 len += scnprintf(buf + len, PAGE_SIZE-len,
1486 "Segment 9: MSI-X ISR for status cmpl "
1487 "-to- NVME layer passed status done\n");
1488 len += scnprintf(buf + len, PAGE_SIZE-len,
1489 "avg:%08lld min:%08lld max %08lld\n",
1490 div_u64(phba->ktime_seg9_total,
1491 phba->ktime_status_samples),
1492 phba->ktime_seg9_min,
1493 phba->ktime_seg9_max);
1494 len += scnprintf(buf + len, PAGE_SIZE-len,
1495 "Total: cmd received by MSI-X ISR -to- "
1496 "cmd completed on wire\n");
1497 len += scnprintf(buf + len, PAGE_SIZE-len,
1498 "avg:%08lld min:%08lld max %08lld\n",
1499 div_u64(phba->ktime_seg10_total,
1500 phba->ktime_status_samples),
1501 phba->ktime_seg10_min,
1502 phba->ktime_seg10_max);
1503 return len;
1504 }
1505
1506 /**
1507 * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer
1508 * @phba: The phba to gather target node info from.
1509 * @buf: The buffer to dump log into.
1510 * @size: The maximum amount of data to process.
1511 *
1512 * Description:
1513 * This routine dumps the NVME IO trace associated with @phba
1514 *
1515 * Return Value:
1516 * This routine returns the amount of bytes that were dumped into @buf and will
1517 * not exceed @size.
1518 **/
1519 static int
1520 lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size)
1521 {
1522 struct lpfc_debugfs_nvmeio_trc *dtp;
1523 int i, state, index, skip;
1524 int len = 0;
1525
1526 state = phba->nvmeio_trc_on;
1527
1528 index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) &
1529 (phba->nvmeio_trc_size - 1);
1530 skip = phba->nvmeio_trc_output_idx;
1531
1532 len += scnprintf(buf + len, size - len,
1533 "%s IO Trace %s: next_idx %d skip %d size %d\n",
1534 (phba->nvmet_support ? "NVME" : "NVMET"),
1535 (state ? "Enabled" : "Disabled"),
1536 index, skip, phba->nvmeio_trc_size);
1537
1538 if (!phba->nvmeio_trc || state)
1539 return len;
1540
1541 /* trace MUST bhe off to continue */
1542
1543 for (i = index; i < phba->nvmeio_trc_size; i++) {
1544 if (skip) {
1545 skip--;
1546 continue;
1547 }
1548 dtp = phba->nvmeio_trc + i;
1549 phba->nvmeio_trc_output_idx++;
1550
1551 if (!dtp->fmt)
1552 continue;
1553
1554 len += scnprintf(buf + len, size - len, dtp->fmt,
1555 dtp->data1, dtp->data2, dtp->data3);
1556
1557 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
1558 phba->nvmeio_trc_output_idx = 0;
1559 len += scnprintf(buf + len, size - len,
1560 "Trace Complete\n");
1561 goto out;
1562 }
1563
1564 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
1565 len += scnprintf(buf + len, size - len,
1566 "Trace Continue (%d of %d)\n",
1567 phba->nvmeio_trc_output_idx,
1568 phba->nvmeio_trc_size);
1569 goto out;
1570 }
1571 }
1572 for (i = 0; i < index; i++) {
1573 if (skip) {
1574 skip--;
1575 continue;
1576 }
1577 dtp = phba->nvmeio_trc + i;
1578 phba->nvmeio_trc_output_idx++;
1579
1580 if (!dtp->fmt)
1581 continue;
1582
1583 len += scnprintf(buf + len, size - len, dtp->fmt,
1584 dtp->data1, dtp->data2, dtp->data3);
1585
1586 if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
1587 phba->nvmeio_trc_output_idx = 0;
1588 len += scnprintf(buf + len, size - len,
1589 "Trace Complete\n");
1590 goto out;
1591 }
1592
1593 if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
1594 len += scnprintf(buf + len, size - len,
1595 "Trace Continue (%d of %d)\n",
1596 phba->nvmeio_trc_output_idx,
1597 phba->nvmeio_trc_size);
1598 goto out;
1599 }
1600 }
1601
1602 len += scnprintf(buf + len, size - len,
1603 "Trace Done\n");
1604 out:
1605 return len;
1606 }
1607
1608 /**
1609 * lpfc_debugfs_cpucheck_data - Dump target node list to a buffer
1610 * @vport: The vport to gather target node info from.
1611 * @buf: The buffer to dump log into.
1612 * @size: The maximum amount of data to process.
1613 *
1614 * Description:
1615 * This routine dumps the NVME statistics associated with @vport
1616 *
1617 * Return Value:
1618 * This routine returns the amount of bytes that were dumped into @buf and will
1619 * not exceed @size.
1620 **/
1621 static int
1622 lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size)
1623 {
1624 struct lpfc_hba *phba = vport->phba;
1625 struct lpfc_sli4_hdw_queue *qp;
1626 int i, j, max_cnt;
1627 int len = 0;
1628 uint32_t tot_xmt;
1629 uint32_t tot_rcv;
1630 uint32_t tot_cmpl;
1631
1632 len += scnprintf(buf + len, PAGE_SIZE - len,
1633 "CPUcheck %s ",
1634 (phba->cpucheck_on & LPFC_CHECK_NVME_IO ?
1635 "Enabled" : "Disabled"));
1636 if (phba->nvmet_support) {
1637 len += scnprintf(buf + len, PAGE_SIZE - len,
1638 "%s\n",
1639 (phba->cpucheck_on & LPFC_CHECK_NVMET_RCV ?
1640 "Rcv Enabled\n" : "Rcv Disabled\n"));
1641 } else {
1642 len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
1643 }
1644 max_cnt = size - LPFC_DEBUG_OUT_LINE_SZ;
1645
1646 for (i = 0; i < phba->cfg_hdw_queue; i++) {
1647 qp = &phba->sli4_hba.hdwq[i];
1648
1649 tot_rcv = 0;
1650 tot_xmt = 0;
1651 tot_cmpl = 0;
1652 for (j = 0; j < LPFC_CHECK_CPU_CNT; j++) {
1653 tot_xmt += qp->cpucheck_xmt_io[j];
1654 tot_cmpl += qp->cpucheck_cmpl_io[j];
1655 if (phba->nvmet_support)
1656 tot_rcv += qp->cpucheck_rcv_io[j];
1657 }
1658
1659 /* Only display Hardware Qs with something */
1660 if (!tot_xmt && !tot_cmpl && !tot_rcv)
1661 continue;
1662
1663 len += scnprintf(buf + len, PAGE_SIZE - len,
1664 "HDWQ %03d: ", i);
1665 for (j = 0; j < LPFC_CHECK_CPU_CNT; j++) {
1666 /* Only display non-zero counters */
1667 if (!qp->cpucheck_xmt_io[j] &&
1668 !qp->cpucheck_cmpl_io[j] &&
1669 !qp->cpucheck_rcv_io[j])
1670 continue;
1671 if (phba->nvmet_support) {
1672 len += scnprintf(buf + len, PAGE_SIZE - len,
1673 "CPU %03d: %x/%x/%x ", j,
1674 qp->cpucheck_rcv_io[j],
1675 qp->cpucheck_xmt_io[j],
1676 qp->cpucheck_cmpl_io[j]);
1677 } else {
1678 len += scnprintf(buf + len, PAGE_SIZE - len,
1679 "CPU %03d: %x/%x ", j,
1680 qp->cpucheck_xmt_io[j],
1681 qp->cpucheck_cmpl_io[j]);
1682 }
1683 }
1684 len += scnprintf(buf + len, PAGE_SIZE - len,
1685 "Total: %x\n", tot_xmt);
1686 if (len >= max_cnt) {
1687 len += scnprintf(buf + len, PAGE_SIZE - len,
1688 "Truncated ...\n");
1689 return len;
1690 }
1691 }
1692 return len;
1693 }
1694
1695 #endif
1696
1697 /**
1698 * lpfc_debugfs_disc_trc - Store discovery trace log
1699 * @vport: The vport to associate this trace string with for retrieval.
1700 * @mask: Log entry classification.
1701 * @fmt: Format string to be displayed when dumping the log.
1702 * @data1: 1st data parameter to be applied to @fmt.
1703 * @data2: 2nd data parameter to be applied to @fmt.
1704 * @data3: 3rd data parameter to be applied to @fmt.
1705 *
1706 * Description:
1707 * This routine is used by the driver code to add a debugfs log entry to the
1708 * discovery trace buffer associated with @vport. Only entries with a @mask that
1709 * match the current debugfs discovery mask will be saved. Entries that do not
1710 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
1711 * printf when displaying the log.
1712 **/
1713 inline void
1714 lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
1715 uint32_t data1, uint32_t data2, uint32_t data3)
1716 {
1717 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1718 struct lpfc_debugfs_trc *dtp;
1719 int index;
1720
1721 if (!(lpfc_debugfs_mask_disc_trc & mask))
1722 return;
1723
1724 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc ||
1725 !vport || !vport->disc_trc)
1726 return;
1727
1728 index = atomic_inc_return(&vport->disc_trc_cnt) &
1729 (lpfc_debugfs_max_disc_trc - 1);
1730 dtp = vport->disc_trc + index;
1731 dtp->fmt = fmt;
1732 dtp->data1 = data1;
1733 dtp->data2 = data2;
1734 dtp->data3 = data3;
1735 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
1736 dtp->jif = jiffies;
1737 #endif
1738 return;
1739 }
1740
1741 /**
1742 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log
1743 * @phba: The phba to associate this trace string with for retrieval.
1744 * @fmt: Format string to be displayed when dumping the log.
1745 * @data1: 1st data parameter to be applied to @fmt.
1746 * @data2: 2nd data parameter to be applied to @fmt.
1747 * @data3: 3rd data parameter to be applied to @fmt.
1748 *
1749 * Description:
1750 * This routine is used by the driver code to add a debugfs log entry to the
1751 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
1752 * @data3 are used like printf when displaying the log.
1753 **/
1754 inline void
1755 lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
1756 uint32_t data1, uint32_t data2, uint32_t data3)
1757 {
1758 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1759 struct lpfc_debugfs_trc *dtp;
1760 int index;
1761
1762 if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc ||
1763 !phba || !phba->slow_ring_trc)
1764 return;
1765
1766 index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
1767 (lpfc_debugfs_max_slow_ring_trc - 1);
1768 dtp = phba->slow_ring_trc + index;
1769 dtp->fmt = fmt;
1770 dtp->data1 = data1;
1771 dtp->data2 = data2;
1772 dtp->data3 = data3;
1773 dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
1774 dtp->jif = jiffies;
1775 #endif
1776 return;
1777 }
1778
1779 /**
1780 * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log
1781 * @phba: The phba to associate this trace string with for retrieval.
1782 * @fmt: Format string to be displayed when dumping the log.
1783 * @data1: 1st data parameter to be applied to @fmt.
1784 * @data2: 2nd data parameter to be applied to @fmt.
1785 * @data3: 3rd data parameter to be applied to @fmt.
1786 *
1787 * Description:
1788 * This routine is used by the driver code to add a debugfs log entry to the
1789 * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and
1790 * @data3 are used like printf when displaying the log.
1791 **/
1792 inline void
1793 lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt,
1794 uint16_t data1, uint16_t data2, uint32_t data3)
1795 {
1796 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1797 struct lpfc_debugfs_nvmeio_trc *dtp;
1798 int index;
1799
1800 if (!phba->nvmeio_trc_on || !phba->nvmeio_trc)
1801 return;
1802
1803 index = atomic_inc_return(&phba->nvmeio_trc_cnt) &
1804 (phba->nvmeio_trc_size - 1);
1805 dtp = phba->nvmeio_trc + index;
1806 dtp->fmt = fmt;
1807 dtp->data1 = data1;
1808 dtp->data2 = data2;
1809 dtp->data3 = data3;
1810 #endif
1811 }
1812
1813 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
1814 /**
1815 * lpfc_debugfs_disc_trc_open - Open the discovery trace log
1816 * @inode: The inode pointer that contains a vport pointer.
1817 * @file: The file pointer to attach the log output.
1818 *
1819 * Description:
1820 * This routine is the entry point for the debugfs open file operation. It gets
1821 * the vport from the i_private field in @inode, allocates the necessary buffer
1822 * for the log, fills the buffer from the in-memory log for this vport, and then
1823 * returns a pointer to that log in the private_data field in @file.
1824 *
1825 * Returns:
1826 * This function returns zero if successful. On error it will return a negative
1827 * error value.
1828 **/
1829 static int
1830 lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
1831 {
1832 struct lpfc_vport *vport = inode->i_private;
1833 struct lpfc_debug *debug;
1834 int size;
1835 int rc = -ENOMEM;
1836
1837 if (!lpfc_debugfs_max_disc_trc) {
1838 rc = -ENOSPC;
1839 goto out;
1840 }
1841
1842 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1843 if (!debug)
1844 goto out;
1845
1846 /* Round to page boundary */
1847 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
1848 size = PAGE_ALIGN(size);
1849
1850 debug->buffer = kmalloc(size, GFP_KERNEL);
1851 if (!debug->buffer) {
1852 kfree(debug);
1853 goto out;
1854 }
1855
1856 debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size);
1857 file->private_data = debug;
1858
1859 rc = 0;
1860 out:
1861 return rc;
1862 }
1863
1864 /**
1865 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log
1866 * @inode: The inode pointer that contains a vport pointer.
1867 * @file: The file pointer to attach the log output.
1868 *
1869 * Description:
1870 * This routine is the entry point for the debugfs open file operation. It gets
1871 * the vport from the i_private field in @inode, allocates the necessary buffer
1872 * for the log, fills the buffer from the in-memory log for this vport, and then
1873 * returns a pointer to that log in the private_data field in @file.
1874 *
1875 * Returns:
1876 * This function returns zero if successful. On error it will return a negative
1877 * error value.
1878 **/
1879 static int
1880 lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
1881 {
1882 struct lpfc_hba *phba = inode->i_private;
1883 struct lpfc_debug *debug;
1884 int size;
1885 int rc = -ENOMEM;
1886
1887 if (!lpfc_debugfs_max_slow_ring_trc) {
1888 rc = -ENOSPC;
1889 goto out;
1890 }
1891
1892 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1893 if (!debug)
1894 goto out;
1895
1896 /* Round to page boundary */
1897 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
1898 size = PAGE_ALIGN(size);
1899
1900 debug->buffer = kmalloc(size, GFP_KERNEL);
1901 if (!debug->buffer) {
1902 kfree(debug);
1903 goto out;
1904 }
1905
1906 debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size);
1907 file->private_data = debug;
1908
1909 rc = 0;
1910 out:
1911 return rc;
1912 }
1913
1914 /**
1915 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
1916 * @inode: The inode pointer that contains a vport pointer.
1917 * @file: The file pointer to attach the log output.
1918 *
1919 * Description:
1920 * This routine is the entry point for the debugfs open file operation. It gets
1921 * the vport from the i_private field in @inode, allocates the necessary buffer
1922 * for the log, fills the buffer from the in-memory log for this vport, and then
1923 * returns a pointer to that log in the private_data field in @file.
1924 *
1925 * Returns:
1926 * This function returns zero if successful. On error it will return a negative
1927 * error value.
1928 **/
1929 static int
1930 lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
1931 {
1932 struct lpfc_hba *phba = inode->i_private;
1933 struct lpfc_debug *debug;
1934 int rc = -ENOMEM;
1935
1936 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1937 if (!debug)
1938 goto out;
1939
1940 /* Round to page boundary */
1941 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
1942 if (!debug->buffer) {
1943 kfree(debug);
1944 goto out;
1945 }
1946
1947 debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer,
1948 LPFC_HBQINFO_SIZE);
1949 file->private_data = debug;
1950
1951 rc = 0;
1952 out:
1953 return rc;
1954 }
1955
1956 /**
1957 * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer
1958 * @inode: The inode pointer that contains a hba pointer.
1959 * @file: The file pointer to attach the log output.
1960 *
1961 * Description:
1962 * This routine is the entry point for the debugfs open file operation. It gets
1963 * the hba from the i_private field in @inode, allocates the necessary buffer
1964 * for the log, fills the buffer from the in-memory log for this hba, and then
1965 * returns a pointer to that log in the private_data field in @file.
1966 *
1967 * Returns:
1968 * This function returns zero if successful. On error it will return a negative
1969 * error value.
1970 **/
1971 static int
1972 lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file)
1973 {
1974 struct lpfc_hba *phba = inode->i_private;
1975 struct lpfc_debug *debug;
1976 int rc = -ENOMEM;
1977
1978 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
1979 if (!debug)
1980 goto out;
1981
1982 /* Round to page boundary */
1983 debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL);
1984 if (!debug->buffer) {
1985 kfree(debug);
1986 goto out;
1987 }
1988
1989 debug->len = lpfc_debugfs_multixripools_data(
1990 phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE);
1991
1992 debug->i_private = inode->i_private;
1993 file->private_data = debug;
1994
1995 rc = 0;
1996 out:
1997 return rc;
1998 }
1999
2000 #ifdef LPFC_HDWQ_LOCK_STAT
2001 /**
2002 * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer
2003 * @inode: The inode pointer that contains a vport pointer.
2004 * @file: The file pointer to attach the log output.
2005 *
2006 * Description:
2007 * This routine is the entry point for the debugfs open file operation. It gets
2008 * the vport from the i_private field in @inode, allocates the necessary buffer
2009 * for the log, fills the buffer from the in-memory log for this vport, and then
2010 * returns a pointer to that log in the private_data field in @file.
2011 *
2012 * Returns:
2013 * This function returns zero if successful. On error it will return a negative
2014 * error value.
2015 **/
2016 static int
2017 lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file)
2018 {
2019 struct lpfc_hba *phba = inode->i_private;
2020 struct lpfc_debug *debug;
2021 int rc = -ENOMEM;
2022
2023 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2024 if (!debug)
2025 goto out;
2026
2027 /* Round to page boundary */
2028 debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL);
2029 if (!debug->buffer) {
2030 kfree(debug);
2031 goto out;
2032 }
2033
2034 debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer,
2035 LPFC_HBQINFO_SIZE);
2036 file->private_data = debug;
2037
2038 rc = 0;
2039 out:
2040 return rc;
2041 }
2042
2043 static ssize_t
2044 lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf,
2045 size_t nbytes, loff_t *ppos)
2046 {
2047 struct lpfc_debug *debug = file->private_data;
2048 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2049 struct lpfc_sli4_hdw_queue *qp;
2050 char mybuf[64];
2051 char *pbuf;
2052 int i;
2053
2054 /* Protect copy from user */
2055 if (!access_ok(buf, nbytes))
2056 return -EFAULT;
2057
2058 memset(mybuf, 0, sizeof(mybuf));
2059
2060 if (copy_from_user(mybuf, buf, nbytes))
2061 return -EFAULT;
2062 pbuf = &mybuf[0];
2063
2064 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) ||
2065 (strncmp(pbuf, "zero", strlen("zero")) == 0)) {
2066 for (i = 0; i < phba->cfg_hdw_queue; i++) {
2067 qp = &phba->sli4_hba.hdwq[i];
2068 qp->lock_conflict.alloc_xri_get = 0;
2069 qp->lock_conflict.alloc_xri_put = 0;
2070 qp->lock_conflict.free_xri = 0;
2071 qp->lock_conflict.wq_access = 0;
2072 qp->lock_conflict.alloc_pvt_pool = 0;
2073 qp->lock_conflict.mv_from_pvt_pool = 0;
2074 qp->lock_conflict.mv_to_pub_pool = 0;
2075 qp->lock_conflict.mv_to_pvt_pool = 0;
2076 qp->lock_conflict.free_pvt_pool = 0;
2077 qp->lock_conflict.free_pub_pool = 0;
2078 qp->lock_conflict.wq_access = 0;
2079 }
2080 }
2081 return nbytes;
2082 }
2083 #endif
2084
2085 /**
2086 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
2087 * @inode: The inode pointer that contains a vport pointer.
2088 * @file: The file pointer to attach the log output.
2089 *
2090 * Description:
2091 * This routine is the entry point for the debugfs open file operation. It gets
2092 * the vport from the i_private field in @inode, allocates the necessary buffer
2093 * for the log, fills the buffer from the in-memory log for this vport, and then
2094 * returns a pointer to that log in the private_data field in @file.
2095 *
2096 * Returns:
2097 * This function returns zero if successful. On error it will return a negative
2098 * error value.
2099 **/
2100 static int
2101 lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
2102 {
2103 struct lpfc_hba *phba = inode->i_private;
2104 struct lpfc_debug *debug;
2105 int rc = -ENOMEM;
2106
2107 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2108 if (!debug)
2109 goto out;
2110
2111 /* Round to page boundary */
2112 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
2113 if (!debug->buffer) {
2114 kfree(debug);
2115 goto out;
2116 }
2117
2118 debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer,
2119 LPFC_DUMPHBASLIM_SIZE);
2120 file->private_data = debug;
2121
2122 rc = 0;
2123 out:
2124 return rc;
2125 }
2126
2127 /**
2128 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
2129 * @inode: The inode pointer that contains a vport pointer.
2130 * @file: The file pointer to attach the log output.
2131 *
2132 * Description:
2133 * This routine is the entry point for the debugfs open file operation. It gets
2134 * the vport from the i_private field in @inode, allocates the necessary buffer
2135 * for the log, fills the buffer from the in-memory log for this vport, and then
2136 * returns a pointer to that log in the private_data field in @file.
2137 *
2138 * Returns:
2139 * This function returns zero if successful. On error it will return a negative
2140 * error value.
2141 **/
2142 static int
2143 lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
2144 {
2145 struct lpfc_hba *phba = inode->i_private;
2146 struct lpfc_debug *debug;
2147 int rc = -ENOMEM;
2148
2149 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2150 if (!debug)
2151 goto out;
2152
2153 /* Round to page boundary */
2154 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
2155 if (!debug->buffer) {
2156 kfree(debug);
2157 goto out;
2158 }
2159
2160 debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer,
2161 LPFC_DUMPHOSTSLIM_SIZE);
2162 file->private_data = debug;
2163
2164 rc = 0;
2165 out:
2166 return rc;
2167 }
2168
2169 static int
2170 lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file)
2171 {
2172 struct lpfc_debug *debug;
2173 int rc = -ENOMEM;
2174
2175 if (!_dump_buf_data)
2176 return -EBUSY;
2177
2178 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2179 if (!debug)
2180 goto out;
2181
2182 /* Round to page boundary */
2183 pr_err("9059 BLKGRD: %s: _dump_buf_data=0x%p\n",
2184 __func__, _dump_buf_data);
2185 debug->buffer = _dump_buf_data;
2186 if (!debug->buffer) {
2187 kfree(debug);
2188 goto out;
2189 }
2190
2191 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT;
2192 file->private_data = debug;
2193
2194 rc = 0;
2195 out:
2196 return rc;
2197 }
2198
2199 static int
2200 lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file)
2201 {
2202 struct lpfc_debug *debug;
2203 int rc = -ENOMEM;
2204
2205 if (!_dump_buf_dif)
2206 return -EBUSY;
2207
2208 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2209 if (!debug)
2210 goto out;
2211
2212 /* Round to page boundary */
2213 pr_err("9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%pD\n",
2214 __func__, _dump_buf_dif, file);
2215 debug->buffer = _dump_buf_dif;
2216 if (!debug->buffer) {
2217 kfree(debug);
2218 goto out;
2219 }
2220
2221 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT;
2222 file->private_data = debug;
2223
2224 rc = 0;
2225 out:
2226 return rc;
2227 }
2228
2229 static ssize_t
2230 lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
2231 size_t nbytes, loff_t *ppos)
2232 {
2233 /*
2234 * The Data/DIF buffers only save one failing IO
2235 * The write op is used as a reset mechanism after an IO has
2236 * already been saved to the next one can be saved
2237 */
2238 spin_lock(&_dump_buf_lock);
2239
2240 memset((void *)_dump_buf_data, 0,
2241 ((1 << PAGE_SHIFT) << _dump_buf_data_order));
2242 memset((void *)_dump_buf_dif, 0,
2243 ((1 << PAGE_SHIFT) << _dump_buf_dif_order));
2244
2245 _dump_buf_done = 0;
2246
2247 spin_unlock(&_dump_buf_lock);
2248
2249 return nbytes;
2250 }
2251
2252 static ssize_t
2253 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
2254 size_t nbytes, loff_t *ppos)
2255 {
2256 struct dentry *dent = file->f_path.dentry;
2257 struct lpfc_hba *phba = file->private_data;
2258 char cbuf[32];
2259 uint64_t tmp = 0;
2260 int cnt = 0;
2261
2262 if (dent == phba->debug_writeGuard)
2263 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
2264 else if (dent == phba->debug_writeApp)
2265 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
2266 else if (dent == phba->debug_writeRef)
2267 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
2268 else if (dent == phba->debug_readGuard)
2269 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
2270 else if (dent == phba->debug_readApp)
2271 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
2272 else if (dent == phba->debug_readRef)
2273 cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
2274 else if (dent == phba->debug_InjErrNPortID)
2275 cnt = scnprintf(cbuf, 32, "0x%06x\n",
2276 phba->lpfc_injerr_nportid);
2277 else if (dent == phba->debug_InjErrWWPN) {
2278 memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name));
2279 tmp = cpu_to_be64(tmp);
2280 cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp);
2281 } else if (dent == phba->debug_InjErrLBA) {
2282 if (phba->lpfc_injerr_lba == (sector_t)(-1))
2283 cnt = scnprintf(cbuf, 32, "off\n");
2284 else
2285 cnt = scnprintf(cbuf, 32, "0x%llx\n",
2286 (uint64_t) phba->lpfc_injerr_lba);
2287 } else
2288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2289 "0547 Unknown debugfs error injection entry\n");
2290
2291 return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt);
2292 }
2293
2294 static ssize_t
2295 lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf,
2296 size_t nbytes, loff_t *ppos)
2297 {
2298 struct dentry *dent = file->f_path.dentry;
2299 struct lpfc_hba *phba = file->private_data;
2300 char dstbuf[33];
2301 uint64_t tmp = 0;
2302 int size;
2303
2304 memset(dstbuf, 0, 33);
2305 size = (nbytes < 32) ? nbytes : 32;
2306 if (copy_from_user(dstbuf, buf, size))
2307 return 0;
2308
2309 if (dent == phba->debug_InjErrLBA) {
2310 if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f'))
2311 tmp = (uint64_t)(-1);
2312 }
2313
2314 if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp)))
2315 return 0;
2316
2317 if (dent == phba->debug_writeGuard)
2318 phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;
2319 else if (dent == phba->debug_writeApp)
2320 phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;
2321 else if (dent == phba->debug_writeRef)
2322 phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;
2323 else if (dent == phba->debug_readGuard)
2324 phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp;
2325 else if (dent == phba->debug_readApp)
2326 phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;
2327 else if (dent == phba->debug_readRef)
2328 phba->lpfc_injerr_rref_cnt = (uint32_t)tmp;
2329 else if (dent == phba->debug_InjErrLBA)
2330 phba->lpfc_injerr_lba = (sector_t)tmp;
2331 else if (dent == phba->debug_InjErrNPortID)
2332 phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID);
2333 else if (dent == phba->debug_InjErrWWPN) {
2334 tmp = cpu_to_be64(tmp);
2335 memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name));
2336 } else
2337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2338 "0548 Unknown debugfs error injection entry\n");
2339
2340 return nbytes;
2341 }
2342
2343 static int
2344 lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file)
2345 {
2346 return 0;
2347 }
2348
2349 /**
2350 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
2351 * @inode: The inode pointer that contains a vport pointer.
2352 * @file: The file pointer to attach the log output.
2353 *
2354 * Description:
2355 * This routine is the entry point for the debugfs open file operation. It gets
2356 * the vport from the i_private field in @inode, allocates the necessary buffer
2357 * for the log, fills the buffer from the in-memory log for this vport, and then
2358 * returns a pointer to that log in the private_data field in @file.
2359 *
2360 * Returns:
2361 * This function returns zero if successful. On error it will return a negative
2362 * error value.
2363 **/
2364 static int
2365 lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
2366 {
2367 struct lpfc_vport *vport = inode->i_private;
2368 struct lpfc_debug *debug;
2369 int rc = -ENOMEM;
2370
2371 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2372 if (!debug)
2373 goto out;
2374
2375 /* Round to page boundary */
2376 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
2377 if (!debug->buffer) {
2378 kfree(debug);
2379 goto out;
2380 }
2381
2382 debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer,
2383 LPFC_NODELIST_SIZE);
2384 file->private_data = debug;
2385
2386 rc = 0;
2387 out:
2388 return rc;
2389 }
2390
2391 /**
2392 * lpfc_debugfs_lseek - Seek through a debugfs file
2393 * @file: The file pointer to seek through.
2394 * @off: The offset to seek to or the amount to seek by.
2395 * @whence: Indicates how to seek.
2396 *
2397 * Description:
2398 * This routine is the entry point for the debugfs lseek file operation. The
2399 * @whence parameter indicates whether @off is the offset to directly seek to,
2400 * or if it is a value to seek forward or reverse by. This function figures out
2401 * what the new offset of the debugfs file will be and assigns that value to the
2402 * f_pos field of @file.
2403 *
2404 * Returns:
2405 * This function returns the new offset if successful and returns a negative
2406 * error if unable to process the seek.
2407 **/
2408 static loff_t
2409 lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
2410 {
2411 struct lpfc_debug *debug = file->private_data;
2412 return fixed_size_llseek(file, off, whence, debug->len);
2413 }
2414
2415 /**
2416 * lpfc_debugfs_read - Read a debugfs file
2417 * @file: The file pointer to read from.
2418 * @buf: The buffer to copy the data to.
2419 * @nbytes: The number of bytes to read.
2420 * @ppos: The position in the file to start reading from.
2421 *
2422 * Description:
2423 * This routine reads data from from the buffer indicated in the private_data
2424 * field of @file. It will start reading at @ppos and copy up to @nbytes of
2425 * data to @buf.
2426 *
2427 * Returns:
2428 * This function returns the amount of data that was read (this could be less
2429 * than @nbytes if the end of the file was reached) or a negative error value.
2430 **/
2431 static ssize_t
2432 lpfc_debugfs_read(struct file *file, char __user *buf,
2433 size_t nbytes, loff_t *ppos)
2434 {
2435 struct lpfc_debug *debug = file->private_data;
2436
2437 return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
2438 debug->len);
2439 }
2440
2441 /**
2442 * lpfc_debugfs_release - Release the buffer used to store debugfs file data
2443 * @inode: The inode pointer that contains a vport pointer. (unused)
2444 * @file: The file pointer that contains the buffer to release.
2445 *
2446 * Description:
2447 * This routine frees the buffer that was allocated when the debugfs file was
2448 * opened.
2449 *
2450 * Returns:
2451 * This function returns zero.
2452 **/
2453 static int
2454 lpfc_debugfs_release(struct inode *inode, struct file *file)
2455 {
2456 struct lpfc_debug *debug = file->private_data;
2457
2458 kfree(debug->buffer);
2459 kfree(debug);
2460
2461 return 0;
2462 }
2463
2464 static int
2465 lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
2466 {
2467 struct lpfc_debug *debug = file->private_data;
2468
2469 debug->buffer = NULL;
2470 kfree(debug);
2471
2472 return 0;
2473 }
2474
2475 /**
2476 * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics
2477 * @file: The file pointer to read from.
2478 * @buf: The buffer to copy the user data from.
2479 * @nbytes: The number of bytes to get.
2480 * @ppos: The position in the file to start reading from.
2481 *
2482 * Description:
2483 * This routine clears multi-XRI pools statistics when buf contains "clear".
2484 *
2485 * Return Value:
2486 * It returns the @nbytges passing in from debugfs user space when successful.
2487 * In case of error conditions, it returns proper error code back to the user
2488 * space.
2489 **/
2490 static ssize_t
2491 lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf,
2492 size_t nbytes, loff_t *ppos)
2493 {
2494 struct lpfc_debug *debug = file->private_data;
2495 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2496 char mybuf[64];
2497 char *pbuf;
2498 u32 i;
2499 u32 hwq_count;
2500 struct lpfc_sli4_hdw_queue *qp;
2501 struct lpfc_multixri_pool *multixri_pool;
2502
2503 if (nbytes > 64)
2504 nbytes = 64;
2505
2506 /* Protect copy from user */
2507 if (!access_ok(buf, nbytes))
2508 return -EFAULT;
2509
2510 memset(mybuf, 0, sizeof(mybuf));
2511
2512 if (copy_from_user(mybuf, buf, nbytes))
2513 return -EFAULT;
2514 pbuf = &mybuf[0];
2515
2516 if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) {
2517 hwq_count = phba->cfg_hdw_queue;
2518 for (i = 0; i < hwq_count; i++) {
2519 qp = &phba->sli4_hba.hdwq[i];
2520 multixri_pool = qp->p_multixri_pool;
2521 if (!multixri_pool)
2522 continue;
2523
2524 qp->empty_io_bufs = 0;
2525 multixri_pool->pbl_empty_count = 0;
2526 #ifdef LPFC_MXP_STAT
2527 multixri_pool->above_limit_count = 0;
2528 multixri_pool->below_limit_count = 0;
2529 multixri_pool->stat_max_hwm = 0;
2530 multixri_pool->local_pbl_hit_count = 0;
2531 multixri_pool->other_pbl_hit_count = 0;
2532
2533 multixri_pool->stat_pbl_count = 0;
2534 multixri_pool->stat_pvt_count = 0;
2535 multixri_pool->stat_busy_count = 0;
2536 multixri_pool->stat_snapshot_taken = 0;
2537 #endif
2538 }
2539 return strlen(pbuf);
2540 }
2541
2542 return -EINVAL;
2543 }
2544
2545 static int
2546 lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file)
2547 {
2548 struct lpfc_vport *vport = inode->i_private;
2549 struct lpfc_debug *debug;
2550 int rc = -ENOMEM;
2551
2552 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2553 if (!debug)
2554 goto out;
2555
2556 /* Round to page boundary */
2557 debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL);
2558 if (!debug->buffer) {
2559 kfree(debug);
2560 goto out;
2561 }
2562
2563 debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer,
2564 LPFC_NVMESTAT_SIZE);
2565
2566 debug->i_private = inode->i_private;
2567 file->private_data = debug;
2568
2569 rc = 0;
2570 out:
2571 return rc;
2572 }
2573
2574 static ssize_t
2575 lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf,
2576 size_t nbytes, loff_t *ppos)
2577 {
2578 struct lpfc_debug *debug = file->private_data;
2579 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
2580 struct lpfc_hba *phba = vport->phba;
2581 struct lpfc_nvmet_tgtport *tgtp;
2582 char mybuf[64];
2583 char *pbuf;
2584
2585 if (!phba->targetport)
2586 return -ENXIO;
2587
2588 if (nbytes > 64)
2589 nbytes = 64;
2590
2591 memset(mybuf, 0, sizeof(mybuf));
2592
2593 if (copy_from_user(mybuf, buf, nbytes))
2594 return -EFAULT;
2595 pbuf = &mybuf[0];
2596
2597 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
2598 if ((strncmp(pbuf, "reset", strlen("reset")) == 0) ||
2599 (strncmp(pbuf, "zero", strlen("zero")) == 0)) {
2600 atomic_set(&tgtp->rcv_ls_req_in, 0);
2601 atomic_set(&tgtp->rcv_ls_req_out, 0);
2602 atomic_set(&tgtp->rcv_ls_req_drop, 0);
2603 atomic_set(&tgtp->xmt_ls_abort, 0);
2604 atomic_set(&tgtp->xmt_ls_abort_cmpl, 0);
2605 atomic_set(&tgtp->xmt_ls_rsp, 0);
2606 atomic_set(&tgtp->xmt_ls_drop, 0);
2607 atomic_set(&tgtp->xmt_ls_rsp_error, 0);
2608 atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0);
2609
2610 atomic_set(&tgtp->rcv_fcp_cmd_in, 0);
2611 atomic_set(&tgtp->rcv_fcp_cmd_out, 0);
2612 atomic_set(&tgtp->rcv_fcp_cmd_drop, 0);
2613 atomic_set(&tgtp->xmt_fcp_drop, 0);
2614 atomic_set(&tgtp->xmt_fcp_read_rsp, 0);
2615 atomic_set(&tgtp->xmt_fcp_read, 0);
2616 atomic_set(&tgtp->xmt_fcp_write, 0);
2617 atomic_set(&tgtp->xmt_fcp_rsp, 0);
2618 atomic_set(&tgtp->xmt_fcp_release, 0);
2619 atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0);
2620 atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
2621 atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
2622
2623 atomic_set(&tgtp->xmt_fcp_abort, 0);
2624 atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0);
2625 atomic_set(&tgtp->xmt_abort_sol, 0);
2626 atomic_set(&tgtp->xmt_abort_unsol, 0);
2627 atomic_set(&tgtp->xmt_abort_rsp, 0);
2628 atomic_set(&tgtp->xmt_abort_rsp_error, 0);
2629 }
2630 return nbytes;
2631 }
2632
2633 static int
2634 lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file)
2635 {
2636 struct lpfc_vport *vport = inode->i_private;
2637 struct lpfc_debug *debug;
2638 int rc = -ENOMEM;
2639
2640 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2641 if (!debug)
2642 goto out;
2643
2644 /* Round to page boundary */
2645 debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL);
2646 if (!debug->buffer) {
2647 kfree(debug);
2648 goto out;
2649 }
2650
2651 debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer,
2652 LPFC_SCSISTAT_SIZE);
2653
2654 debug->i_private = inode->i_private;
2655 file->private_data = debug;
2656
2657 rc = 0;
2658 out:
2659 return rc;
2660 }
2661
2662 static ssize_t
2663 lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf,
2664 size_t nbytes, loff_t *ppos)
2665 {
2666 struct lpfc_debug *debug = file->private_data;
2667 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
2668 struct lpfc_hba *phba = vport->phba;
2669 char mybuf[6] = {0};
2670 int i;
2671
2672 /* Protect copy from user */
2673 if (!access_ok(buf, nbytes))
2674 return -EFAULT;
2675
2676 if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ?
2677 (sizeof(mybuf) - 1) : nbytes))
2678 return -EFAULT;
2679
2680 if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) ||
2681 (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) {
2682 for (i = 0; i < phba->cfg_hdw_queue; i++) {
2683 memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0,
2684 sizeof(phba->sli4_hba.hdwq[i].scsi_cstat));
2685 }
2686 }
2687
2688 return nbytes;
2689 }
2690
2691 static int
2692 lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file)
2693 {
2694 struct lpfc_vport *vport = inode->i_private;
2695 struct lpfc_debug *debug;
2696 int rc = -ENOMEM;
2697
2698 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2699 if (!debug)
2700 goto out;
2701
2702 /* Round to page boundary */
2703 debug->buffer = kmalloc(LPFC_NVMEKTIME_SIZE, GFP_KERNEL);
2704 if (!debug->buffer) {
2705 kfree(debug);
2706 goto out;
2707 }
2708
2709 debug->len = lpfc_debugfs_nvmektime_data(vport, debug->buffer,
2710 LPFC_NVMEKTIME_SIZE);
2711
2712 debug->i_private = inode->i_private;
2713 file->private_data = debug;
2714
2715 rc = 0;
2716 out:
2717 return rc;
2718 }
2719
2720 static ssize_t
2721 lpfc_debugfs_nvmektime_write(struct file *file, const char __user *buf,
2722 size_t nbytes, loff_t *ppos)
2723 {
2724 struct lpfc_debug *debug = file->private_data;
2725 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
2726 struct lpfc_hba *phba = vport->phba;
2727 char mybuf[64];
2728 char *pbuf;
2729
2730 if (nbytes > 64)
2731 nbytes = 64;
2732
2733 memset(mybuf, 0, sizeof(mybuf));
2734
2735 if (copy_from_user(mybuf, buf, nbytes))
2736 return -EFAULT;
2737 pbuf = &mybuf[0];
2738
2739 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
2740 phba->ktime_data_samples = 0;
2741 phba->ktime_status_samples = 0;
2742 phba->ktime_seg1_total = 0;
2743 phba->ktime_seg1_max = 0;
2744 phba->ktime_seg1_min = 0xffffffff;
2745 phba->ktime_seg2_total = 0;
2746 phba->ktime_seg2_max = 0;
2747 phba->ktime_seg2_min = 0xffffffff;
2748 phba->ktime_seg3_total = 0;
2749 phba->ktime_seg3_max = 0;
2750 phba->ktime_seg3_min = 0xffffffff;
2751 phba->ktime_seg4_total = 0;
2752 phba->ktime_seg4_max = 0;
2753 phba->ktime_seg4_min = 0xffffffff;
2754 phba->ktime_seg5_total = 0;
2755 phba->ktime_seg5_max = 0;
2756 phba->ktime_seg5_min = 0xffffffff;
2757 phba->ktime_seg6_total = 0;
2758 phba->ktime_seg6_max = 0;
2759 phba->ktime_seg6_min = 0xffffffff;
2760 phba->ktime_seg7_total = 0;
2761 phba->ktime_seg7_max = 0;
2762 phba->ktime_seg7_min = 0xffffffff;
2763 phba->ktime_seg8_total = 0;
2764 phba->ktime_seg8_max = 0;
2765 phba->ktime_seg8_min = 0xffffffff;
2766 phba->ktime_seg9_total = 0;
2767 phba->ktime_seg9_max = 0;
2768 phba->ktime_seg9_min = 0xffffffff;
2769 phba->ktime_seg10_total = 0;
2770 phba->ktime_seg10_max = 0;
2771 phba->ktime_seg10_min = 0xffffffff;
2772
2773 phba->ktime_on = 1;
2774 return strlen(pbuf);
2775 } else if ((strncmp(pbuf, "off",
2776 sizeof("off") - 1) == 0)) {
2777 phba->ktime_on = 0;
2778 return strlen(pbuf);
2779 } else if ((strncmp(pbuf, "zero",
2780 sizeof("zero") - 1) == 0)) {
2781 phba->ktime_data_samples = 0;
2782 phba->ktime_status_samples = 0;
2783 phba->ktime_seg1_total = 0;
2784 phba->ktime_seg1_max = 0;
2785 phba->ktime_seg1_min = 0xffffffff;
2786 phba->ktime_seg2_total = 0;
2787 phba->ktime_seg2_max = 0;
2788 phba->ktime_seg2_min = 0xffffffff;
2789 phba->ktime_seg3_total = 0;
2790 phba->ktime_seg3_max = 0;
2791 phba->ktime_seg3_min = 0xffffffff;
2792 phba->ktime_seg4_total = 0;
2793 phba->ktime_seg4_max = 0;
2794 phba->ktime_seg4_min = 0xffffffff;
2795 phba->ktime_seg5_total = 0;
2796 phba->ktime_seg5_max = 0;
2797 phba->ktime_seg5_min = 0xffffffff;
2798 phba->ktime_seg6_total = 0;
2799 phba->ktime_seg6_max = 0;
2800 phba->ktime_seg6_min = 0xffffffff;
2801 phba->ktime_seg7_total = 0;
2802 phba->ktime_seg7_max = 0;
2803 phba->ktime_seg7_min = 0xffffffff;
2804 phba->ktime_seg8_total = 0;
2805 phba->ktime_seg8_max = 0;
2806 phba->ktime_seg8_min = 0xffffffff;
2807 phba->ktime_seg9_total = 0;
2808 phba->ktime_seg9_max = 0;
2809 phba->ktime_seg9_min = 0xffffffff;
2810 phba->ktime_seg10_total = 0;
2811 phba->ktime_seg10_max = 0;
2812 phba->ktime_seg10_min = 0xffffffff;
2813 return strlen(pbuf);
2814 }
2815 return -EINVAL;
2816 }
2817
2818 static int
2819 lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file)
2820 {
2821 struct lpfc_hba *phba = inode->i_private;
2822 struct lpfc_debug *debug;
2823 int rc = -ENOMEM;
2824
2825 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2826 if (!debug)
2827 goto out;
2828
2829 /* Round to page boundary */
2830 debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL);
2831 if (!debug->buffer) {
2832 kfree(debug);
2833 goto out;
2834 }
2835
2836 debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer,
2837 LPFC_NVMEIO_TRC_SIZE);
2838
2839 debug->i_private = inode->i_private;
2840 file->private_data = debug;
2841
2842 rc = 0;
2843 out:
2844 return rc;
2845 }
2846
2847 static ssize_t
2848 lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
2849 size_t nbytes, loff_t *ppos)
2850 {
2851 struct lpfc_debug *debug = file->private_data;
2852 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
2853 int i;
2854 unsigned long sz;
2855 char mybuf[64];
2856 char *pbuf;
2857
2858 if (nbytes > 64)
2859 nbytes = 64;
2860
2861 memset(mybuf, 0, sizeof(mybuf));
2862
2863 if (copy_from_user(mybuf, buf, nbytes))
2864 return -EFAULT;
2865 pbuf = &mybuf[0];
2866
2867 if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) {
2868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2869 "0570 nvmeio_trc_off\n");
2870 phba->nvmeio_trc_output_idx = 0;
2871 phba->nvmeio_trc_on = 0;
2872 return strlen(pbuf);
2873 } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
2874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2875 "0571 nvmeio_trc_on\n");
2876 phba->nvmeio_trc_output_idx = 0;
2877 phba->nvmeio_trc_on = 1;
2878 return strlen(pbuf);
2879 }
2880
2881 /* We must be off to allocate the trace buffer */
2882 if (phba->nvmeio_trc_on != 0)
2883 return -EINVAL;
2884
2885 /* If not on or off, the parameter is the trace buffer size */
2886 i = kstrtoul(pbuf, 0, &sz);
2887 if (i)
2888 return -EINVAL;
2889 phba->nvmeio_trc_size = (uint32_t)sz;
2890
2891 /* It must be a power of 2 - round down */
2892 i = 0;
2893 while (sz > 1) {
2894 sz = sz >> 1;
2895 i++;
2896 }
2897 sz = (1 << i);
2898 if (phba->nvmeio_trc_size != sz)
2899 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2900 "0572 nvmeio_trc_size changed to %ld\n",
2901 sz);
2902 phba->nvmeio_trc_size = (uint32_t)sz;
2903
2904 /* If one previously exists, free it */
2905 kfree(phba->nvmeio_trc);
2906
2907 /* Allocate new trace buffer and initialize */
2908 phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) *
2909 sz), GFP_KERNEL);
2910 if (!phba->nvmeio_trc) {
2911 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2912 "0573 Cannot create debugfs "
2913 "nvmeio_trc buffer\n");
2914 return -ENOMEM;
2915 }
2916 atomic_set(&phba->nvmeio_trc_cnt, 0);
2917 phba->nvmeio_trc_on = 0;
2918 phba->nvmeio_trc_output_idx = 0;
2919
2920 return strlen(pbuf);
2921 }
2922
2923 static int
2924 lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file)
2925 {
2926 struct lpfc_vport *vport = inode->i_private;
2927 struct lpfc_debug *debug;
2928 int rc = -ENOMEM;
2929
2930 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
2931 if (!debug)
2932 goto out;
2933
2934 /* Round to page boundary */
2935 debug->buffer = kmalloc(LPFC_CPUCHECK_SIZE, GFP_KERNEL);
2936 if (!debug->buffer) {
2937 kfree(debug);
2938 goto out;
2939 }
2940
2941 debug->len = lpfc_debugfs_cpucheck_data(vport, debug->buffer,
2942 LPFC_CPUCHECK_SIZE);
2943
2944 debug->i_private = inode->i_private;
2945 file->private_data = debug;
2946
2947 rc = 0;
2948 out:
2949 return rc;
2950 }
2951
2952 static ssize_t
2953 lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf,
2954 size_t nbytes, loff_t *ppos)
2955 {
2956 struct lpfc_debug *debug = file->private_data;
2957 struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
2958 struct lpfc_hba *phba = vport->phba;
2959 struct lpfc_sli4_hdw_queue *qp;
2960 char mybuf[64];
2961 char *pbuf;
2962 int i, j;
2963
2964 if (nbytes > 64)
2965 nbytes = 64;
2966
2967 memset(mybuf, 0, sizeof(mybuf));
2968
2969 if (copy_from_user(mybuf, buf, nbytes))
2970 return -EFAULT;
2971 pbuf = &mybuf[0];
2972
2973 if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
2974 if (phba->nvmet_support)
2975 phba->cpucheck_on |= LPFC_CHECK_NVMET_IO;
2976 else
2977 phba->cpucheck_on |= (LPFC_CHECK_NVME_IO |
2978 LPFC_CHECK_SCSI_IO);
2979 return strlen(pbuf);
2980 } else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) {
2981 if (phba->nvmet_support)
2982 phba->cpucheck_on |= LPFC_CHECK_NVMET_IO;
2983 else
2984 phba->cpucheck_on |= LPFC_CHECK_NVME_IO;
2985 return strlen(pbuf);
2986 } else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) {
2987 phba->cpucheck_on |= LPFC_CHECK_SCSI_IO;
2988 return strlen(pbuf);
2989 } else if ((strncmp(pbuf, "rcv",
2990 sizeof("rcv") - 1) == 0)) {
2991 if (phba->nvmet_support)
2992 phba->cpucheck_on |= LPFC_CHECK_NVMET_RCV;
2993 else
2994 return -EINVAL;
2995 return strlen(pbuf);
2996 } else if ((strncmp(pbuf, "off",
2997 sizeof("off") - 1) == 0)) {
2998 phba->cpucheck_on = LPFC_CHECK_OFF;
2999 return strlen(pbuf);
3000 } else if ((strncmp(pbuf, "zero",
3001 sizeof("zero") - 1) == 0)) {
3002 for (i = 0; i < phba->cfg_hdw_queue; i++) {
3003 qp = &phba->sli4_hba.hdwq[i];
3004
3005 for (j = 0; j < LPFC_CHECK_CPU_CNT; j++) {
3006 qp->cpucheck_rcv_io[j] = 0;
3007 qp->cpucheck_xmt_io[j] = 0;
3008 qp->cpucheck_cmpl_io[j] = 0;
3009 }
3010 }
3011 return strlen(pbuf);
3012 }
3013 return -EINVAL;
3014 }
3015
3016 /*
3017 * ---------------------------------
3018 * iDiag debugfs file access methods
3019 * ---------------------------------
3020 *
3021 * All access methods are through the proper SLI4 PCI function's debugfs
3022 * iDiag directory:
3023 *
3024 * /sys/kernel/debug/lpfc/fn<#>/iDiag
3025 */
3026
3027 /**
3028 * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
3029 * @buf: The pointer to the user space buffer.
3030 * @nbytes: The number of bytes in the user space buffer.
3031 * @idiag_cmd: pointer to the idiag command struct.
3032 *
3033 * This routine reads data from debugfs user space buffer and parses the
3034 * buffer for getting the idiag command and arguments. The while space in
3035 * between the set of data is used as the parsing separator.
3036 *
3037 * This routine returns 0 when successful, it returns proper error code
3038 * back to the user space in error conditions.
3039 */
3040 static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
3041 struct lpfc_idiag_cmd *idiag_cmd)
3042 {
3043 char mybuf[64];
3044 char *pbuf, *step_str;
3045 int i;
3046 size_t bsize;
3047
3048 memset(mybuf, 0, sizeof(mybuf));
3049 memset(idiag_cmd, 0, sizeof(*idiag_cmd));
3050 bsize = min(nbytes, (sizeof(mybuf)-1));
3051
3052 if (copy_from_user(mybuf, buf, bsize))
3053 return -EFAULT;
3054 pbuf = &mybuf[0];
3055 step_str = strsep(&pbuf, "\t ");
3056
3057 /* The opcode must present */
3058 if (!step_str)
3059 return -EINVAL;
3060
3061 idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
3062 if (idiag_cmd->opcode == 0)
3063 return -EINVAL;
3064
3065 for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
3066 step_str = strsep(&pbuf, "\t ");
3067 if (!step_str)
3068 return i;
3069 idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
3070 }
3071 return i;
3072 }
3073
3074 /**
3075 * lpfc_idiag_open - idiag open debugfs
3076 * @inode: The inode pointer that contains a pointer to phba.
3077 * @file: The file pointer to attach the file operation.
3078 *
3079 * Description:
3080 * This routine is the entry point for the debugfs open file operation. It
3081 * gets the reference to phba from the i_private field in @inode, it then
3082 * allocates buffer for the file operation, performs the necessary PCI config
3083 * space read into the allocated buffer according to the idiag user command
3084 * setup, and then returns a pointer to buffer in the private_data field in
3085 * @file.
3086 *
3087 * Returns:
3088 * This function returns zero if successful. On error it will return an
3089 * negative error value.
3090 **/
3091 static int
3092 lpfc_idiag_open(struct inode *inode, struct file *file)
3093 {
3094 struct lpfc_debug *debug;
3095
3096 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
3097 if (!debug)
3098 return -ENOMEM;
3099
3100 debug->i_private = inode->i_private;
3101 debug->buffer = NULL;
3102 file->private_data = debug;
3103
3104 return 0;
3105 }
3106
3107 /**
3108 * lpfc_idiag_release - Release idiag access file operation
3109 * @inode: The inode pointer that contains a vport pointer. (unused)
3110 * @file: The file pointer that contains the buffer to release.
3111 *
3112 * Description:
3113 * This routine is the generic release routine for the idiag access file
3114 * operation, it frees the buffer that was allocated when the debugfs file
3115 * was opened.
3116 *
3117 * Returns:
3118 * This function returns zero.
3119 **/
3120 static int
3121 lpfc_idiag_release(struct inode *inode, struct file *file)
3122 {
3123 struct lpfc_debug *debug = file->private_data;
3124
3125 /* Free the buffers to the file operation */
3126 kfree(debug->buffer);
3127 kfree(debug);
3128
3129 return 0;
3130 }
3131
3132 /**
3133 * lpfc_idiag_cmd_release - Release idiag cmd access file operation
3134 * @inode: The inode pointer that contains a vport pointer. (unused)
3135 * @file: The file pointer that contains the buffer to release.
3136 *
3137 * Description:
3138 * This routine frees the buffer that was allocated when the debugfs file
3139 * was opened. It also reset the fields in the idiag command struct in the
3140 * case of command for write operation.
3141 *
3142 * Returns:
3143 * This function returns zero.
3144 **/
3145 static int
3146 lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
3147 {
3148 struct lpfc_debug *debug = file->private_data;
3149
3150 if (debug->op == LPFC_IDIAG_OP_WR) {
3151 switch (idiag.cmd.opcode) {
3152 case LPFC_IDIAG_CMD_PCICFG_WR:
3153 case LPFC_IDIAG_CMD_PCICFG_ST:
3154 case LPFC_IDIAG_CMD_PCICFG_CL:
3155 case LPFC_IDIAG_CMD_QUEACC_WR:
3156 case LPFC_IDIAG_CMD_QUEACC_ST:
3157 case LPFC_IDIAG_CMD_QUEACC_CL:
3158 memset(&idiag, 0, sizeof(idiag));
3159 break;
3160 default:
3161 break;
3162 }
3163 }
3164
3165 /* Free the buffers to the file operation */
3166 kfree(debug->buffer);
3167 kfree(debug);
3168
3169 return 0;
3170 }
3171
3172 /**
3173 * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
3174 * @file: The file pointer to read from.
3175 * @buf: The buffer to copy the data to.
3176 * @nbytes: The number of bytes to read.
3177 * @ppos: The position in the file to start reading from.
3178 *
3179 * Description:
3180 * This routine reads data from the @phba pci config space according to the
3181 * idiag command, and copies to user @buf. Depending on the PCI config space
3182 * read command setup, it does either a single register read of a byte
3183 * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
3184 * registers from the 4K extended PCI config space.
3185 *
3186 * Returns:
3187 * This function returns the amount of data that was read (this could be less
3188 * than @nbytes if the end of the file was reached) or a negative error value.
3189 **/
3190 static ssize_t
3191 lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
3192 loff_t *ppos)
3193 {
3194 struct lpfc_debug *debug = file->private_data;
3195 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3196 int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
3197 int where, count;
3198 char *pbuffer;
3199 struct pci_dev *pdev;
3200 uint32_t u32val;
3201 uint16_t u16val;
3202 uint8_t u8val;
3203
3204 pdev = phba->pcidev;
3205 if (!pdev)
3206 return 0;
3207
3208 /* This is a user read operation */
3209 debug->op = LPFC_IDIAG_OP_RD;
3210
3211 if (!debug->buffer)
3212 debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
3213 if (!debug->buffer)
3214 return 0;
3215 pbuffer = debug->buffer;
3216
3217 if (*ppos)
3218 return 0;
3219
3220 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
3221 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
3222 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
3223 } else
3224 return 0;
3225
3226 /* Read single PCI config space register */
3227 switch (count) {
3228 case SIZE_U8: /* byte (8 bits) */
3229 pci_read_config_byte(pdev, where, &u8val);
3230 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
3231 "%03x: %02x\n", where, u8val);
3232 break;
3233 case SIZE_U16: /* word (16 bits) */
3234 pci_read_config_word(pdev, where, &u16val);
3235 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
3236 "%03x: %04x\n", where, u16val);
3237 break;
3238 case SIZE_U32: /* double word (32 bits) */
3239 pci_read_config_dword(pdev, where, &u32val);
3240 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
3241 "%03x: %08x\n", where, u32val);
3242 break;
3243 case LPFC_PCI_CFG_BROWSE: /* browse all */
3244 goto pcicfg_browse;
3245 break;
3246 default:
3247 /* illegal count */
3248 len = 0;
3249 break;
3250 }
3251 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3252
3253 pcicfg_browse:
3254
3255 /* Browse all PCI config space registers */
3256 offset_label = idiag.offset.last_rd;
3257 offset = offset_label;
3258
3259 /* Read PCI config space */
3260 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
3261 "%03x: ", offset_label);
3262 while (index > 0) {
3263 pci_read_config_dword(pdev, offset, &u32val);
3264 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
3265 "%08x ", u32val);
3266 offset += sizeof(uint32_t);
3267 if (offset >= LPFC_PCI_CFG_SIZE) {
3268 len += scnprintf(pbuffer+len,
3269 LPFC_PCI_CFG_SIZE-len, "\n");
3270 break;
3271 }
3272 index -= sizeof(uint32_t);
3273 if (!index)
3274 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
3275 "\n");
3276 else if (!(index % (8 * sizeof(uint32_t)))) {
3277 offset_label += (8 * sizeof(uint32_t));
3278 len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
3279 "\n%03x: ", offset_label);
3280 }
3281 }
3282
3283 /* Set up the offset for next portion of pci cfg read */
3284 if (index == 0) {
3285 idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
3286 if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
3287 idiag.offset.last_rd = 0;
3288 } else
3289 idiag.offset.last_rd = 0;
3290
3291 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3292 }
3293
3294 /**
3295 * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
3296 * @file: The file pointer to read from.
3297 * @buf: The buffer to copy the user data from.
3298 * @nbytes: The number of bytes to get.
3299 * @ppos: The position in the file to start reading from.
3300 *
3301 * This routine get the debugfs idiag command struct from user space and
3302 * then perform the syntax check for PCI config space read or write command
3303 * accordingly. In the case of PCI config space read command, it sets up
3304 * the command in the idiag command struct for the debugfs read operation.
3305 * In the case of PCI config space write operation, it executes the write
3306 * operation into the PCI config space accordingly.
3307 *
3308 * It returns the @nbytges passing in from debugfs user space when successful.
3309 * In case of error conditions, it returns proper error code back to the user
3310 * space.
3311 */
3312 static ssize_t
3313 lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
3314 size_t nbytes, loff_t *ppos)
3315 {
3316 struct lpfc_debug *debug = file->private_data;
3317 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3318 uint32_t where, value, count;
3319 uint32_t u32val;
3320 uint16_t u16val;
3321 uint8_t u8val;
3322 struct pci_dev *pdev;
3323 int rc;
3324
3325 pdev = phba->pcidev;
3326 if (!pdev)
3327 return -EFAULT;
3328
3329 /* This is a user write operation */
3330 debug->op = LPFC_IDIAG_OP_WR;
3331
3332 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3333 if (rc < 0)
3334 return rc;
3335
3336 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
3337 /* Sanity check on PCI config read command line arguments */
3338 if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
3339 goto error_out;
3340 /* Read command from PCI config space, set up command fields */
3341 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
3342 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
3343 if (count == LPFC_PCI_CFG_BROWSE) {
3344 if (where % sizeof(uint32_t))
3345 goto error_out;
3346 /* Starting offset to browse */
3347 idiag.offset.last_rd = where;
3348 } else if ((count != sizeof(uint8_t)) &&
3349 (count != sizeof(uint16_t)) &&
3350 (count != sizeof(uint32_t)))
3351 goto error_out;
3352 if (count == sizeof(uint8_t)) {
3353 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
3354 goto error_out;
3355 if (where % sizeof(uint8_t))
3356 goto error_out;
3357 }
3358 if (count == sizeof(uint16_t)) {
3359 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
3360 goto error_out;
3361 if (where % sizeof(uint16_t))
3362 goto error_out;
3363 }
3364 if (count == sizeof(uint32_t)) {
3365 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
3366 goto error_out;
3367 if (where % sizeof(uint32_t))
3368 goto error_out;
3369 }
3370 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
3371 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
3372 idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
3373 /* Sanity check on PCI config write command line arguments */
3374 if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
3375 goto error_out;
3376 /* Write command to PCI config space, read-modify-write */
3377 where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
3378 count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
3379 value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX];
3380 /* Sanity checks */
3381 if ((count != sizeof(uint8_t)) &&
3382 (count != sizeof(uint16_t)) &&
3383 (count != sizeof(uint32_t)))
3384 goto error_out;
3385 if (count == sizeof(uint8_t)) {
3386 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
3387 goto error_out;
3388 if (where % sizeof(uint8_t))
3389 goto error_out;
3390 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
3391 pci_write_config_byte(pdev, where,
3392 (uint8_t)value);
3393 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
3394 rc = pci_read_config_byte(pdev, where, &u8val);
3395 if (!rc) {
3396 u8val |= (uint8_t)value;
3397 pci_write_config_byte(pdev, where,
3398 u8val);
3399 }
3400 }
3401 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
3402 rc = pci_read_config_byte(pdev, where, &u8val);
3403 if (!rc) {
3404 u8val &= (uint8_t)(~value);
3405 pci_write_config_byte(pdev, where,
3406 u8val);
3407 }
3408 }
3409 }
3410 if (count == sizeof(uint16_t)) {
3411 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
3412 goto error_out;
3413 if (where % sizeof(uint16_t))
3414 goto error_out;
3415 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
3416 pci_write_config_word(pdev, where,
3417 (uint16_t)value);
3418 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
3419 rc = pci_read_config_word(pdev, where, &u16val);
3420 if (!rc) {
3421 u16val |= (uint16_t)value;
3422 pci_write_config_word(pdev, where,
3423 u16val);
3424 }
3425 }
3426 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
3427 rc = pci_read_config_word(pdev, where, &u16val);
3428 if (!rc) {
3429 u16val &= (uint16_t)(~value);
3430 pci_write_config_word(pdev, where,
3431 u16val);
3432 }
3433 }
3434 }
3435 if (count == sizeof(uint32_t)) {
3436 if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
3437 goto error_out;
3438 if (where % sizeof(uint32_t))
3439 goto error_out;
3440 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
3441 pci_write_config_dword(pdev, where, value);
3442 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
3443 rc = pci_read_config_dword(pdev, where,
3444 &u32val);
3445 if (!rc) {
3446 u32val |= value;
3447 pci_write_config_dword(pdev, where,
3448 u32val);
3449 }
3450 }
3451 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
3452 rc = pci_read_config_dword(pdev, where,
3453 &u32val);
3454 if (!rc) {
3455 u32val &= ~value;
3456 pci_write_config_dword(pdev, where,
3457 u32val);
3458 }
3459 }
3460 }
3461 } else
3462 /* All other opecodes are illegal for now */
3463 goto error_out;
3464
3465 return nbytes;
3466 error_out:
3467 memset(&idiag, 0, sizeof(idiag));
3468 return -EINVAL;
3469 }
3470
3471 /**
3472 * lpfc_idiag_baracc_read - idiag debugfs pci bar access read
3473 * @file: The file pointer to read from.
3474 * @buf: The buffer to copy the data to.
3475 * @nbytes: The number of bytes to read.
3476 * @ppos: The position in the file to start reading from.
3477 *
3478 * Description:
3479 * This routine reads data from the @phba pci bar memory mapped space
3480 * according to the idiag command, and copies to user @buf.
3481 *
3482 * Returns:
3483 * This function returns the amount of data that was read (this could be less
3484 * than @nbytes if the end of the file was reached) or a negative error value.
3485 **/
3486 static ssize_t
3487 lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
3488 loff_t *ppos)
3489 {
3490 struct lpfc_debug *debug = file->private_data;
3491 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3492 int offset_label, offset, offset_run, len = 0, index;
3493 int bar_num, acc_range, bar_size;
3494 char *pbuffer;
3495 void __iomem *mem_mapped_bar;
3496 uint32_t if_type;
3497 struct pci_dev *pdev;
3498 uint32_t u32val;
3499
3500 pdev = phba->pcidev;
3501 if (!pdev)
3502 return 0;
3503
3504 /* This is a user read operation */
3505 debug->op = LPFC_IDIAG_OP_RD;
3506
3507 if (!debug->buffer)
3508 debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL);
3509 if (!debug->buffer)
3510 return 0;
3511 pbuffer = debug->buffer;
3512
3513 if (*ppos)
3514 return 0;
3515
3516 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
3517 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
3518 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
3519 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
3520 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
3521 } else
3522 return 0;
3523
3524 if (acc_range == 0)
3525 return 0;
3526
3527 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
3528 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
3529 if (bar_num == IDIAG_BARACC_BAR_0)
3530 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
3531 else if (bar_num == IDIAG_BARACC_BAR_1)
3532 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
3533 else if (bar_num == IDIAG_BARACC_BAR_2)
3534 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
3535 else
3536 return 0;
3537 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
3538 if (bar_num == IDIAG_BARACC_BAR_0)
3539 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
3540 else
3541 return 0;
3542 } else
3543 return 0;
3544
3545 /* Read single PCI bar space register */
3546 if (acc_range == SINGLE_WORD) {
3547 offset_run = offset;
3548 u32val = readl(mem_mapped_bar + offset_run);
3549 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
3550 "%05x: %08x\n", offset_run, u32val);
3551 } else
3552 goto baracc_browse;
3553
3554 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3555
3556 baracc_browse:
3557
3558 /* Browse all PCI bar space registers */
3559 offset_label = idiag.offset.last_rd;
3560 offset_run = offset_label;
3561
3562 /* Read PCI bar memory mapped space */
3563 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
3564 "%05x: ", offset_label);
3565 index = LPFC_PCI_BAR_RD_SIZE;
3566 while (index > 0) {
3567 u32val = readl(mem_mapped_bar + offset_run);
3568 len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
3569 "%08x ", u32val);
3570 offset_run += sizeof(uint32_t);
3571 if (acc_range == LPFC_PCI_BAR_BROWSE) {
3572 if (offset_run >= bar_size) {
3573 len += scnprintf(pbuffer+len,
3574 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
3575 break;
3576 }
3577 } else {
3578 if (offset_run >= offset +
3579 (acc_range * sizeof(uint32_t))) {
3580 len += scnprintf(pbuffer+len,
3581 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
3582 break;
3583 }
3584 }
3585 index -= sizeof(uint32_t);
3586 if (!index)
3587 len += scnprintf(pbuffer+len,
3588 LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
3589 else if (!(index % (8 * sizeof(uint32_t)))) {
3590 offset_label += (8 * sizeof(uint32_t));
3591 len += scnprintf(pbuffer+len,
3592 LPFC_PCI_BAR_RD_BUF_SIZE-len,
3593 "\n%05x: ", offset_label);
3594 }
3595 }
3596
3597 /* Set up the offset for next portion of pci bar read */
3598 if (index == 0) {
3599 idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE;
3600 if (acc_range == LPFC_PCI_BAR_BROWSE) {
3601 if (idiag.offset.last_rd >= bar_size)
3602 idiag.offset.last_rd = 0;
3603 } else {
3604 if (offset_run >= offset +
3605 (acc_range * sizeof(uint32_t)))
3606 idiag.offset.last_rd = offset;
3607 }
3608 } else {
3609 if (acc_range == LPFC_PCI_BAR_BROWSE)
3610 idiag.offset.last_rd = 0;
3611 else
3612 idiag.offset.last_rd = offset;
3613 }
3614
3615 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
3616 }
3617
3618 /**
3619 * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
3620 * @file: The file pointer to read from.
3621 * @buf: The buffer to copy the user data from.
3622 * @nbytes: The number of bytes to get.
3623 * @ppos: The position in the file to start reading from.
3624 *
3625 * This routine get the debugfs idiag command struct from user space and
3626 * then perform the syntax check for PCI bar memory mapped space read or
3627 * write command accordingly. In the case of PCI bar memory mapped space
3628 * read command, it sets up the command in the idiag command struct for
3629 * the debugfs read operation. In the case of PCI bar memorpy mapped space
3630 * write operation, it executes the write operation into the PCI bar memory
3631 * mapped space accordingly.
3632 *
3633 * It returns the @nbytges passing in from debugfs user space when successful.
3634 * In case of error conditions, it returns proper error code back to the user
3635 * space.
3636 */
3637 static ssize_t
3638 lpfc_idiag_baracc_write(struct file *file, const char __user *buf,
3639 size_t nbytes, loff_t *ppos)
3640 {
3641 struct lpfc_debug *debug = file->private_data;
3642 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3643 uint32_t bar_num, bar_size, offset, value, acc_range;
3644 struct pci_dev *pdev;
3645 void __iomem *mem_mapped_bar;
3646 uint32_t if_type;
3647 uint32_t u32val;
3648 int rc;
3649
3650 pdev = phba->pcidev;
3651 if (!pdev)
3652 return -EFAULT;
3653
3654 /* This is a user write operation */
3655 debug->op = LPFC_IDIAG_OP_WR;
3656
3657 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
3658 if (rc < 0)
3659 return rc;
3660
3661 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
3662 bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
3663
3664 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
3665 if ((bar_num != IDIAG_BARACC_BAR_0) &&
3666 (bar_num != IDIAG_BARACC_BAR_1) &&
3667 (bar_num != IDIAG_BARACC_BAR_2))
3668 goto error_out;
3669 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
3670 if (bar_num != IDIAG_BARACC_BAR_0)
3671 goto error_out;
3672 } else
3673 goto error_out;
3674
3675 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
3676 if (bar_num == IDIAG_BARACC_BAR_0) {
3677 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
3678 LPFC_PCI_IF0_BAR0_SIZE;
3679 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
3680 } else if (bar_num == IDIAG_BARACC_BAR_1) {
3681 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
3682 LPFC_PCI_IF0_BAR1_SIZE;
3683 mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
3684 } else if (bar_num == IDIAG_BARACC_BAR_2) {
3685 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
3686 LPFC_PCI_IF0_BAR2_SIZE;
3687 mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
3688 } else
3689 goto error_out;
3690 } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
3691 if (bar_num == IDIAG_BARACC_BAR_0) {
3692 idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
3693 LPFC_PCI_IF2_BAR0_SIZE;
3694 mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
3695 } else
3696 goto error_out;
3697 } else
3698 goto error_out;
3699
3700 offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
3701 if (offset % sizeof(uint32_t))
3702 goto error_out;
3703
3704 bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
3705 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
3706 /* Sanity check on PCI config read command line arguments */
3707 if (rc != LPFC_PCI_BAR_RD_CMD_ARG)
3708 goto error_out;
3709 acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
3710 if (acc_range == LPFC_PCI_BAR_BROWSE) {
3711 if (offset > bar_size - sizeof(uint32_t))
3712 goto error_out;
3713 /* Starting offset to browse */
3714 idiag.offset.last_rd = offset;
3715 } else if (acc_range > SINGLE_WORD) {
3716 if (offset + acc_range * sizeof(uint32_t) > bar_size)
3717 goto error_out;
3718 /* Starting offset to browse */
3719 idiag.offset.last_rd = offset;
3720 } else if (acc_range != SINGLE_WORD)
3721 goto error_out;
3722 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR ||
3723 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST ||
3724 idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
3725 /* Sanity check on PCI bar write command line arguments */
3726 if (rc != LPFC_PCI_BAR_WR_CMD_ARG)
3727 goto error_out;
3728 /* Write command to PCI bar space, read-modify-write */
3729 acc_range = SINGLE_WORD;
3730 value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX];
3731 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) {
3732 writel(value, mem_mapped_bar + offset);
3733 readl(mem_mapped_bar + offset);
3734 }
3735 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) {
3736 u32val = readl(mem_mapped_bar + offset);
3737 u32val |= value;
3738 writel(u32val, mem_mapped_bar + offset);
3739 readl(mem_mapped_bar + offset);
3740 }
3741 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
3742 u32val = readl(mem_mapped_bar + offset);
3743 u32val &= ~value;
3744 writel(u32val, mem_mapped_bar + offset);
3745 readl(mem_mapped_bar + offset);
3746 }
3747 } else
3748 /* All other opecodes are illegal for now */
3749 goto error_out;
3750
3751 return nbytes;
3752 error_out:
3753 memset(&idiag, 0, sizeof(idiag));
3754 return -EINVAL;
3755 }
3756
3757 static int
3758 __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype,
3759 char *pbuffer, int len)
3760 {
3761 if (!qp)
3762 return len;
3763
3764 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3765 "\t\t%s WQ info: ", wqtype);
3766 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3767 "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n",
3768 qp->assoc_qid, qp->q_cnt_1,
3769 (unsigned long long)qp->q_cnt_4);
3770 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3771 "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
3772 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]",
3773 qp->queue_id, qp->entry_count,
3774 qp->entry_size, qp->host_index,
3775 qp->hba_index, qp->notify_interval);
3776 len += scnprintf(pbuffer + len,
3777 LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
3778 return len;
3779 }
3780
3781 static int
3782 lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer,
3783 int *len, int max_cnt, int cq_id)
3784 {
3785 struct lpfc_queue *qp;
3786 int qidx;
3787
3788 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
3789 qp = phba->sli4_hba.hdwq[qidx].fcp_wq;
3790 if (qp->assoc_qid != cq_id)
3791 continue;
3792 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len);
3793 if (*len >= max_cnt)
3794 return 1;
3795 }
3796 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3797 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
3798 qp = phba->sli4_hba.hdwq[qidx].nvme_wq;
3799 if (qp->assoc_qid != cq_id)
3800 continue;
3801 *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len);
3802 if (*len >= max_cnt)
3803 return 1;
3804 }
3805 }
3806 return 0;
3807 }
3808
3809 static int
3810 __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype,
3811 char *pbuffer, int len)
3812 {
3813 if (!qp)
3814 return len;
3815
3816 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3817 "\t%s CQ info: ", cqtype);
3818 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3819 "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x "
3820 "xabt:x%x wq:x%llx]\n",
3821 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
3822 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
3823 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3824 "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
3825 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]",
3826 qp->queue_id, qp->entry_count,
3827 qp->entry_size, qp->host_index,
3828 qp->notify_interval, qp->max_proc_limit);
3829
3830 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3831 "\n");
3832
3833 return len;
3834 }
3835
3836 static int
3837 __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp,
3838 char *rqtype, char *pbuffer, int len)
3839 {
3840 if (!qp || !datqp)
3841 return len;
3842
3843 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3844 "\t\t%s RQ info: ", rqtype);
3845 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3846 "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x "
3847 "posted:x%x rcv:x%llx]\n",
3848 qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
3849 qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
3850 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3851 "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
3852 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n",
3853 qp->queue_id, qp->entry_count, qp->entry_size,
3854 qp->host_index, qp->hba_index, qp->notify_interval);
3855 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3856 "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
3857 "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n",
3858 datqp->queue_id, datqp->entry_count,
3859 datqp->entry_size, datqp->host_index,
3860 datqp->hba_index, datqp->notify_interval);
3861 return len;
3862 }
3863
3864 static int
3865 lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer,
3866 int *len, int max_cnt, int eqidx, int eq_id)
3867 {
3868 struct lpfc_queue *qp;
3869 int rc;
3870
3871 qp = phba->sli4_hba.hdwq[eqidx].fcp_cq;
3872
3873 *len = __lpfc_idiag_print_cq(qp, "FCP", pbuffer, *len);
3874
3875 /* Reset max counter */
3876 qp->CQ_max_cqe = 0;
3877
3878 if (*len >= max_cnt)
3879 return 1;
3880
3881 rc = lpfc_idiag_wqs_for_cq(phba, "FCP", pbuffer, len,
3882 max_cnt, qp->queue_id);
3883 if (rc)
3884 return 1;
3885
3886 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3887 qp = phba->sli4_hba.hdwq[eqidx].nvme_cq;
3888
3889 *len = __lpfc_idiag_print_cq(qp, "NVME", pbuffer, *len);
3890
3891 /* Reset max counter */
3892 qp->CQ_max_cqe = 0;
3893
3894 if (*len >= max_cnt)
3895 return 1;
3896
3897 rc = lpfc_idiag_wqs_for_cq(phba, "NVME", pbuffer, len,
3898 max_cnt, qp->queue_id);
3899 if (rc)
3900 return 1;
3901 }
3902
3903 if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) {
3904 /* NVMET CQset */
3905 qp = phba->sli4_hba.nvmet_cqset[eqidx];
3906 *len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len);
3907
3908 /* Reset max counter */
3909 qp->CQ_max_cqe = 0;
3910
3911 if (*len >= max_cnt)
3912 return 1;
3913
3914 /* RQ header */
3915 qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx];
3916 *len = __lpfc_idiag_print_rqpair(qp,
3917 phba->sli4_hba.nvmet_mrq_data[eqidx],
3918 "NVMET MRQ", pbuffer, *len);
3919
3920 if (*len >= max_cnt)
3921 return 1;
3922 }
3923
3924 return 0;
3925 }
3926
3927 static int
3928 __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype,
3929 char *pbuffer, int len)
3930 {
3931 if (!qp)
3932 return len;
3933
3934 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3935 "\n%s EQ info: EQ-STAT[max:x%x noE:x%x "
3936 "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n",
3937 eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3,
3938 (unsigned long long)qp->q_cnt_4, qp->q_mode);
3939 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3940 "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
3941 "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]",
3942 qp->queue_id, qp->entry_count, qp->entry_size,
3943 qp->host_index, qp->notify_interval,
3944 qp->max_proc_limit, qp->chann);
3945 len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
3946 "\n");
3947
3948 return len;
3949 }
3950
3951 /**
3952 * lpfc_idiag_queinfo_read - idiag debugfs read queue information
3953 * @file: The file pointer to read from.
3954 * @buf: The buffer to copy the data to.
3955 * @nbytes: The number of bytes to read.
3956 * @ppos: The position in the file to start reading from.
3957 *
3958 * Description:
3959 * This routine reads data from the @phba SLI4 PCI function queue information,
3960 * and copies to user @buf.
3961 * This routine only returns 1 EQs worth of information. It remembers the last
3962 * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will
3963 * retrieve all EQs allocated for the phba.
3964 *
3965 * Returns:
3966 * This function returns the amount of data that was read (this could be less
3967 * than @nbytes if the end of the file was reached) or a negative error value.
3968 **/
3969 static ssize_t
3970 lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
3971 loff_t *ppos)
3972 {
3973 struct lpfc_debug *debug = file->private_data;
3974 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
3975 char *pbuffer;
3976 int max_cnt, rc, x, len = 0;
3977 struct lpfc_queue *qp = NULL;
3978
3979 if (!debug->buffer)
3980 debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
3981 if (!debug->buffer)
3982 return 0;
3983 pbuffer = debug->buffer;
3984 max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256;
3985
3986 if (*ppos)
3987 return 0;
3988
3989 spin_lock_irq(&phba->hbalock);
3990
3991 /* Fast-path event queue */
3992 if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) {
3993
3994 x = phba->lpfc_idiag_last_eq;
3995 phba->lpfc_idiag_last_eq++;
3996 if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue)
3997 phba->lpfc_idiag_last_eq = 0;
3998
3999 len += scnprintf(pbuffer + len,
4000 LPFC_QUE_INFO_GET_BUF_SIZE - len,
4001 "HDWQ %d out of %d HBA HDWQs\n",
4002 x, phba->cfg_hdw_queue);
4003
4004 /* Fast-path EQ */
4005 qp = phba->sli4_hba.hdwq[x].hba_eq;
4006 if (!qp)
4007 goto out;
4008
4009 len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len);
4010
4011 /* Reset max counter */
4012 qp->EQ_max_eqe = 0;
4013
4014 if (len >= max_cnt)
4015 goto too_big;
4016
4017 /* will dump both fcp and nvme cqs/wqs for the eq */
4018 rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len,
4019 max_cnt, x, qp->queue_id);
4020 if (rc)
4021 goto too_big;
4022
4023 /* Only EQ 0 has slow path CQs configured */
4024 if (x)
4025 goto out;
4026
4027 /* Slow-path mailbox CQ */
4028 qp = phba->sli4_hba.mbx_cq;
4029 len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len);
4030 if (len >= max_cnt)
4031 goto too_big;
4032
4033 /* Slow-path MBOX MQ */
4034 qp = phba->sli4_hba.mbx_wq;
4035 len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len);
4036 if (len >= max_cnt)
4037 goto too_big;
4038
4039 /* Slow-path ELS response CQ */
4040 qp = phba->sli4_hba.els_cq;
4041 len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len);
4042 /* Reset max counter */
4043 if (qp)
4044 qp->CQ_max_cqe = 0;
4045 if (len >= max_cnt)
4046 goto too_big;
4047
4048 /* Slow-path ELS WQ */
4049 qp = phba->sli4_hba.els_wq;
4050 len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len);
4051 if (len >= max_cnt)
4052 goto too_big;
4053
4054 qp = phba->sli4_hba.hdr_rq;
4055 len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq,
4056 "ELS RQpair", pbuffer, len);
4057 if (len >= max_cnt)
4058 goto too_big;
4059
4060 /* Slow-path NVME LS response CQ */
4061 qp = phba->sli4_hba.nvmels_cq;
4062 len = __lpfc_idiag_print_cq(qp, "NVME LS",
4063 pbuffer, len);
4064 /* Reset max counter */
4065 if (qp)
4066 qp->CQ_max_cqe = 0;
4067 if (len >= max_cnt)
4068 goto too_big;
4069
4070 /* Slow-path NVME LS WQ */
4071 qp = phba->sli4_hba.nvmels_wq;
4072 len = __lpfc_idiag_print_wq(qp, "NVME LS",
4073 pbuffer, len);
4074 if (len >= max_cnt)
4075 goto too_big;
4076
4077 goto out;
4078 }
4079
4080 spin_unlock_irq(&phba->hbalock);
4081 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
4082
4083 too_big:
4084 len += scnprintf(pbuffer + len,
4085 LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n");
4086 out:
4087 spin_unlock_irq(&phba->hbalock);
4088 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
4089 }
4090
4091 /**
4092 * lpfc_idiag_que_param_check - queue access command parameter sanity check
4093 * @q: The pointer to queue structure.
4094 * @index: The index into a queue entry.
4095 * @count: The number of queue entries to access.
4096 *
4097 * Description:
4098 * The routine performs sanity check on device queue access method commands.
4099 *
4100 * Returns:
4101 * This function returns -EINVAL when fails the sanity check, otherwise, it
4102 * returns 0.
4103 **/
4104 static int
4105 lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count)
4106 {
4107 /* Only support single entry read or browsing */
4108 if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE))
4109 return -EINVAL;
4110 if (index > q->entry_count - 1)
4111 return -EINVAL;
4112 return 0;
4113 }
4114
4115 /**
4116 * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
4117 * @pbuffer: The pointer to buffer to copy the read data into.
4118 * @pque: The pointer to the queue to be read.
4119 * @index: The index into the queue entry.
4120 *
4121 * Description:
4122 * This routine reads out a single entry from the given queue's index location
4123 * and copies it into the buffer provided.
4124 *
4125 * Returns:
4126 * This function returns 0 when it fails, otherwise, it returns the length of
4127 * the data read into the buffer provided.
4128 **/
4129 static int
4130 lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
4131 uint32_t index)
4132 {
4133 int offset, esize;
4134 uint32_t *pentry;
4135
4136 if (!pbuffer || !pque)
4137 return 0;
4138
4139 esize = pque->entry_size;
4140 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
4141 "QE-INDEX[%04d]:\n", index);
4142
4143 offset = 0;
4144 pentry = lpfc_sli4_qe(pque, index);
4145 while (esize > 0) {
4146 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
4147 "%08x ", *pentry);
4148 pentry++;
4149 offset += sizeof(uint32_t);
4150 esize -= sizeof(uint32_t);
4151 if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
4152 len += scnprintf(pbuffer+len,
4153 LPFC_QUE_ACC_BUF_SIZE-len, "\n");
4154 }
4155 len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
4156
4157 return len;
4158 }
4159
4160 /**
4161 * lpfc_idiag_queacc_read - idiag debugfs read port queue
4162 * @file: The file pointer to read from.
4163 * @buf: The buffer to copy the data to.
4164 * @nbytes: The number of bytes to read.
4165 * @ppos: The position in the file to start reading from.
4166 *
4167 * Description:
4168 * This routine reads data from the @phba device queue memory according to the
4169 * idiag command, and copies to user @buf. Depending on the queue dump read
4170 * command setup, it does either a single queue entry read or browing through
4171 * all entries of the queue.
4172 *
4173 * Returns:
4174 * This function returns the amount of data that was read (this could be less
4175 * than @nbytes if the end of the file was reached) or a negative error value.
4176 **/
4177 static ssize_t
4178 lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes,
4179 loff_t *ppos)
4180 {
4181 struct lpfc_debug *debug = file->private_data;
4182 uint32_t last_index, index, count;
4183 struct lpfc_queue *pque = NULL;
4184 char *pbuffer;
4185 int len = 0;
4186
4187 /* This is a user read operation */
4188 debug->op = LPFC_IDIAG_OP_RD;
4189
4190 if (!debug->buffer)
4191 debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL);
4192 if (!debug->buffer)
4193 return 0;
4194 pbuffer = debug->buffer;
4195
4196 if (*ppos)
4197 return 0;
4198
4199 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
4200 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
4201 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
4202 pque = (struct lpfc_queue *)idiag.ptr_private;
4203 } else
4204 return 0;
4205
4206 /* Browse the queue starting from index */
4207 if (count == LPFC_QUE_ACC_BROWSE)
4208 goto que_browse;
4209
4210 /* Read a single entry from the queue */
4211 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
4212
4213 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
4214
4215 que_browse:
4216
4217 /* Browse all entries from the queue */
4218 last_index = idiag.offset.last_rd;
4219 index = last_index;
4220
4221 while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) {
4222 len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
4223 index++;
4224 if (index > pque->entry_count - 1)
4225 break;
4226 }
4227
4228 /* Set up the offset for next portion of pci cfg read */
4229 if (index > pque->entry_count - 1)
4230 index = 0;
4231 idiag.offset.last_rd = index;
4232
4233 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
4234 }
4235
4236 /**
4237 * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
4238 * @file: The file pointer to read from.
4239 * @buf: The buffer to copy the user data from.
4240 * @nbytes: The number of bytes to get.
4241 * @ppos: The position in the file to start reading from.
4242 *
4243 * This routine get the debugfs idiag command struct from user space and then
4244 * perform the syntax check for port queue read (dump) or write (set) command
4245 * accordingly. In the case of port queue read command, it sets up the command
4246 * in the idiag command struct for the following debugfs read operation. In
4247 * the case of port queue write operation, it executes the write operation
4248 * into the port queue entry accordingly.
4249 *
4250 * It returns the @nbytges passing in from debugfs user space when successful.
4251 * In case of error conditions, it returns proper error code back to the user
4252 * space.
4253 **/
4254 static ssize_t
4255 lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
4256 size_t nbytes, loff_t *ppos)
4257 {
4258 struct lpfc_debug *debug = file->private_data;
4259 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
4260 uint32_t qidx, quetp, queid, index, count, offset, value;
4261 uint32_t *pentry;
4262 struct lpfc_queue *pque, *qp;
4263 int rc;
4264
4265 /* This is a user write operation */
4266 debug->op = LPFC_IDIAG_OP_WR;
4267
4268 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
4269 if (rc < 0)
4270 return rc;
4271
4272 /* Get and sanity check on command feilds */
4273 quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX];
4274 queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX];
4275 index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
4276 count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
4277 offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX];
4278 value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX];
4279
4280 /* Sanity check on command line arguments */
4281 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
4282 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
4283 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
4284 if (rc != LPFC_QUE_ACC_WR_CMD_ARG)
4285 goto error_out;
4286 if (count != 1)
4287 goto error_out;
4288 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
4289 if (rc != LPFC_QUE_ACC_RD_CMD_ARG)
4290 goto error_out;
4291 } else
4292 goto error_out;
4293
4294 switch (quetp) {
4295 case LPFC_IDIAG_EQ:
4296 /* HBA event queue */
4297 if (phba->sli4_hba.hdwq) {
4298 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
4299 qp = phba->sli4_hba.hdwq[qidx].hba_eq;
4300 if (qp && qp->queue_id == queid) {
4301 /* Sanity check */
4302 rc = lpfc_idiag_que_param_check(qp,
4303 index, count);
4304 if (rc)
4305 goto error_out;
4306 idiag.ptr_private = qp;
4307 goto pass_check;
4308 }
4309 }
4310 }
4311 goto error_out;
4312 break;
4313 case LPFC_IDIAG_CQ:
4314 /* MBX complete queue */
4315 if (phba->sli4_hba.mbx_cq &&
4316 phba->sli4_hba.mbx_cq->queue_id == queid) {
4317 /* Sanity check */
4318 rc = lpfc_idiag_que_param_check(
4319 phba->sli4_hba.mbx_cq, index, count);
4320 if (rc)
4321 goto error_out;
4322 idiag.ptr_private = phba->sli4_hba.mbx_cq;
4323 goto pass_check;
4324 }
4325 /* ELS complete queue */
4326 if (phba->sli4_hba.els_cq &&
4327 phba->sli4_hba.els_cq->queue_id == queid) {
4328 /* Sanity check */
4329 rc = lpfc_idiag_que_param_check(
4330 phba->sli4_hba.els_cq, index, count);
4331 if (rc)
4332 goto error_out;
4333 idiag.ptr_private = phba->sli4_hba.els_cq;
4334 goto pass_check;
4335 }
4336 /* NVME LS complete queue */
4337 if (phba->sli4_hba.nvmels_cq &&
4338 phba->sli4_hba.nvmels_cq->queue_id == queid) {
4339 /* Sanity check */
4340 rc = lpfc_idiag_que_param_check(
4341 phba->sli4_hba.nvmels_cq, index, count);
4342 if (rc)
4343 goto error_out;
4344 idiag.ptr_private = phba->sli4_hba.nvmels_cq;
4345 goto pass_check;
4346 }
4347 /* FCP complete queue */
4348 if (phba->sli4_hba.hdwq) {
4349 for (qidx = 0; qidx < phba->cfg_hdw_queue;
4350 qidx++) {
4351 qp = phba->sli4_hba.hdwq[qidx].fcp_cq;
4352 if (qp && qp->queue_id == queid) {
4353 /* Sanity check */
4354 rc = lpfc_idiag_que_param_check(
4355 qp, index, count);
4356 if (rc)
4357 goto error_out;
4358 idiag.ptr_private = qp;
4359 goto pass_check;
4360 }
4361 }
4362 }
4363 /* NVME complete queue */
4364 if (phba->sli4_hba.hdwq) {
4365 qidx = 0;
4366 do {
4367 qp = phba->sli4_hba.hdwq[qidx].nvme_cq;
4368 if (qp && qp->queue_id == queid) {
4369 /* Sanity check */
4370 rc = lpfc_idiag_que_param_check(
4371 qp, index, count);
4372 if (rc)
4373 goto error_out;
4374 idiag.ptr_private = qp;
4375 goto pass_check;
4376 }
4377 } while (++qidx < phba->cfg_hdw_queue);
4378 }
4379 goto error_out;
4380 break;
4381 case LPFC_IDIAG_MQ:
4382 /* MBX work queue */
4383 if (phba->sli4_hba.mbx_wq &&
4384 phba->sli4_hba.mbx_wq->queue_id == queid) {
4385 /* Sanity check */
4386 rc = lpfc_idiag_que_param_check(
4387 phba->sli4_hba.mbx_wq, index, count);
4388 if (rc)
4389 goto error_out;
4390 idiag.ptr_private = phba->sli4_hba.mbx_wq;
4391 goto pass_check;
4392 }
4393 goto error_out;
4394 break;
4395 case LPFC_IDIAG_WQ:
4396 /* ELS work queue */
4397 if (phba->sli4_hba.els_wq &&
4398 phba->sli4_hba.els_wq->queue_id == queid) {
4399 /* Sanity check */
4400 rc = lpfc_idiag_que_param_check(
4401 phba->sli4_hba.els_wq, index, count);
4402 if (rc)
4403 goto error_out;
4404 idiag.ptr_private = phba->sli4_hba.els_wq;
4405 goto pass_check;
4406 }
4407 /* NVME LS work queue */
4408 if (phba->sli4_hba.nvmels_wq &&
4409 phba->sli4_hba.nvmels_wq->queue_id == queid) {
4410 /* Sanity check */
4411 rc = lpfc_idiag_que_param_check(
4412 phba->sli4_hba.nvmels_wq, index, count);
4413 if (rc)
4414 goto error_out;
4415 idiag.ptr_private = phba->sli4_hba.nvmels_wq;
4416 goto pass_check;
4417 }
4418
4419 if (phba->sli4_hba.hdwq) {
4420 /* FCP/SCSI work queue */
4421 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
4422 qp = phba->sli4_hba.hdwq[qidx].fcp_wq;
4423 if (qp && qp->queue_id == queid) {
4424 /* Sanity check */
4425 rc = lpfc_idiag_que_param_check(
4426 qp, index, count);
4427 if (rc)
4428 goto error_out;
4429 idiag.ptr_private = qp;
4430 goto pass_check;
4431 }
4432 }
4433 /* NVME work queue */
4434 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
4435 qp = phba->sli4_hba.hdwq[qidx].nvme_wq;
4436 if (qp && qp->queue_id == queid) {
4437 /* Sanity check */
4438 rc = lpfc_idiag_que_param_check(
4439 qp, index, count);
4440 if (rc)
4441 goto error_out;
4442 idiag.ptr_private = qp;
4443 goto pass_check;
4444 }
4445 }
4446 }
4447
4448 goto error_out;
4449 break;
4450 case LPFC_IDIAG_RQ:
4451 /* HDR queue */
4452 if (phba->sli4_hba.hdr_rq &&
4453 phba->sli4_hba.hdr_rq->queue_id == queid) {
4454 /* Sanity check */
4455 rc = lpfc_idiag_que_param_check(
4456 phba->sli4_hba.hdr_rq, index, count);
4457 if (rc)
4458 goto error_out;
4459 idiag.ptr_private = phba->sli4_hba.hdr_rq;
4460 goto pass_check;
4461 }
4462 /* DAT queue */
4463 if (phba->sli4_hba.dat_rq &&
4464 phba->sli4_hba.dat_rq->queue_id == queid) {
4465 /* Sanity check */
4466 rc = lpfc_idiag_que_param_check(
4467 phba->sli4_hba.dat_rq, index, count);
4468 if (rc)
4469 goto error_out;
4470 idiag.ptr_private = phba->sli4_hba.dat_rq;
4471 goto pass_check;
4472 }
4473 goto error_out;
4474 break;
4475 default:
4476 goto error_out;
4477 break;
4478 }
4479
4480 pass_check:
4481
4482 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
4483 if (count == LPFC_QUE_ACC_BROWSE)
4484 idiag.offset.last_rd = index;
4485 }
4486
4487 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
4488 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
4489 idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
4490 /* Additional sanity checks on write operation */
4491 pque = (struct lpfc_queue *)idiag.ptr_private;
4492 if (offset > pque->entry_size/sizeof(uint32_t) - 1)
4493 goto error_out;
4494 pentry = lpfc_sli4_qe(pque, index);
4495 pentry += offset;
4496 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR)
4497 *pentry = value;
4498 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST)
4499 *pentry |= value;
4500 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL)
4501 *pentry &= ~value;
4502 }
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_drbacc_read_reg - idiag debugfs read a doorbell register
4513 * @phba: The pointer to hba structure.
4514 * @pbuffer: The pointer to the buffer to copy the data to.
4515 * @len: The length of bytes to copied.
4516 * @drbregid: The id to doorbell registers.
4517 *
4518 * Description:
4519 * This routine reads a doorbell register and copies its content to the
4520 * user buffer pointed to by @pbuffer.
4521 *
4522 * Returns:
4523 * This function returns the amount of data that was copied into @pbuffer.
4524 **/
4525 static int
4526 lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
4527 int len, uint32_t drbregid)
4528 {
4529
4530 if (!pbuffer)
4531 return 0;
4532
4533 switch (drbregid) {
4534 case LPFC_DRB_EQ:
4535 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len,
4536 "EQ-DRB-REG: 0x%08x\n",
4537 readl(phba->sli4_hba.EQDBregaddr));
4538 break;
4539 case LPFC_DRB_CQ:
4540 len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len,
4541 "CQ-DRB-REG: 0x%08x\n",
4542 readl(phba->sli4_hba.CQDBregaddr));
4543 break;
4544 case LPFC_DRB_MQ:
4545 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
4546 "MQ-DRB-REG: 0x%08x\n",
4547 readl(phba->sli4_hba.MQDBregaddr));
4548 break;
4549 case LPFC_DRB_WQ:
4550 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
4551 "WQ-DRB-REG: 0x%08x\n",
4552 readl(phba->sli4_hba.WQDBregaddr));
4553 break;
4554 case LPFC_DRB_RQ:
4555 len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
4556 "RQ-DRB-REG: 0x%08x\n",
4557 readl(phba->sli4_hba.RQDBregaddr));
4558 break;
4559 default:
4560 break;
4561 }
4562
4563 return len;
4564 }
4565
4566 /**
4567 * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
4568 * @file: The file pointer to read from.
4569 * @buf: The buffer to copy the data to.
4570 * @nbytes: The number of bytes to read.
4571 * @ppos: The position in the file to start reading from.
4572 *
4573 * Description:
4574 * This routine reads data from the @phba device doorbell register according
4575 * to the idiag command, and copies to user @buf. Depending on the doorbell
4576 * register read command setup, it does either a single doorbell register
4577 * read or dump all doorbell registers.
4578 *
4579 * Returns:
4580 * This function returns the amount of data that was read (this could be less
4581 * than @nbytes if the end of the file was reached) or a negative error value.
4582 **/
4583 static ssize_t
4584 lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes,
4585 loff_t *ppos)
4586 {
4587 struct lpfc_debug *debug = file->private_data;
4588 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
4589 uint32_t drb_reg_id, i;
4590 char *pbuffer;
4591 int len = 0;
4592
4593 /* This is a user read operation */
4594 debug->op = LPFC_IDIAG_OP_RD;
4595
4596 if (!debug->buffer)
4597 debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL);
4598 if (!debug->buffer)
4599 return 0;
4600 pbuffer = debug->buffer;
4601
4602 if (*ppos)
4603 return 0;
4604
4605 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
4606 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
4607 else
4608 return 0;
4609
4610 if (drb_reg_id == LPFC_DRB_ACC_ALL)
4611 for (i = 1; i <= LPFC_DRB_MAX; i++)
4612 len = lpfc_idiag_drbacc_read_reg(phba,
4613 pbuffer, len, i);
4614 else
4615 len = lpfc_idiag_drbacc_read_reg(phba,
4616 pbuffer, len, drb_reg_id);
4617
4618 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
4619 }
4620
4621 /**
4622 * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
4623 * @file: The file pointer to read from.
4624 * @buf: The buffer to copy the user data from.
4625 * @nbytes: The number of bytes to get.
4626 * @ppos: The position in the file to start reading from.
4627 *
4628 * This routine get the debugfs idiag command struct from user space and then
4629 * perform the syntax check for port doorbell register read (dump) or write
4630 * (set) command accordingly. In the case of port queue read command, it sets
4631 * up the command in the idiag command struct for the following debugfs read
4632 * operation. In the case of port doorbell register write operation, it
4633 * executes the write operation into the port doorbell register accordingly.
4634 *
4635 * It returns the @nbytges passing in from debugfs user space when successful.
4636 * In case of error conditions, it returns proper error code back to the user
4637 * space.
4638 **/
4639 static ssize_t
4640 lpfc_idiag_drbacc_write(struct file *file, const char __user *buf,
4641 size_t nbytes, loff_t *ppos)
4642 {
4643 struct lpfc_debug *debug = file->private_data;
4644 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
4645 uint32_t drb_reg_id, value, reg_val = 0;
4646 void __iomem *drb_reg;
4647 int rc;
4648
4649 /* This is a user write operation */
4650 debug->op = LPFC_IDIAG_OP_WR;
4651
4652 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
4653 if (rc < 0)
4654 return rc;
4655
4656 /* Sanity check on command line arguments */
4657 drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
4658 value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX];
4659
4660 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
4661 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
4662 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
4663 if (rc != LPFC_DRB_ACC_WR_CMD_ARG)
4664 goto error_out;
4665 if (drb_reg_id > LPFC_DRB_MAX)
4666 goto error_out;
4667 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) {
4668 if (rc != LPFC_DRB_ACC_RD_CMD_ARG)
4669 goto error_out;
4670 if ((drb_reg_id > LPFC_DRB_MAX) &&
4671 (drb_reg_id != LPFC_DRB_ACC_ALL))
4672 goto error_out;
4673 } else
4674 goto error_out;
4675
4676 /* Perform the write access operation */
4677 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
4678 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
4679 idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
4680 switch (drb_reg_id) {
4681 case LPFC_DRB_EQ:
4682 drb_reg = phba->sli4_hba.EQDBregaddr;
4683 break;
4684 case LPFC_DRB_CQ:
4685 drb_reg = phba->sli4_hba.CQDBregaddr;
4686 break;
4687 case LPFC_DRB_MQ:
4688 drb_reg = phba->sli4_hba.MQDBregaddr;
4689 break;
4690 case LPFC_DRB_WQ:
4691 drb_reg = phba->sli4_hba.WQDBregaddr;
4692 break;
4693 case LPFC_DRB_RQ:
4694 drb_reg = phba->sli4_hba.RQDBregaddr;
4695 break;
4696 default:
4697 goto error_out;
4698 }
4699
4700 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR)
4701 reg_val = value;
4702 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) {
4703 reg_val = readl(drb_reg);
4704 reg_val |= value;
4705 }
4706 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
4707 reg_val = readl(drb_reg);
4708 reg_val &= ~value;
4709 }
4710 writel(reg_val, drb_reg);
4711 readl(drb_reg); /* flush */
4712 }
4713 return nbytes;
4714
4715 error_out:
4716 /* Clean out command structure on command error out */
4717 memset(&idiag, 0, sizeof(idiag));
4718 return -EINVAL;
4719 }
4720
4721 /**
4722 * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
4723 * @phba: The pointer to hba structure.
4724 * @pbuffer: The pointer to the buffer to copy the data to.
4725 * @len: The length of bytes to copied.
4726 * @drbregid: The id to doorbell registers.
4727 *
4728 * Description:
4729 * This routine reads a control register and copies its content to the
4730 * user buffer pointed to by @pbuffer.
4731 *
4732 * Returns:
4733 * This function returns the amount of data that was copied into @pbuffer.
4734 **/
4735 static int
4736 lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
4737 int len, uint32_t ctlregid)
4738 {
4739
4740 if (!pbuffer)
4741 return 0;
4742
4743 switch (ctlregid) {
4744 case LPFC_CTL_PORT_SEM:
4745 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4746 "Port SemReg: 0x%08x\n",
4747 readl(phba->sli4_hba.conf_regs_memmap_p +
4748 LPFC_CTL_PORT_SEM_OFFSET));
4749 break;
4750 case LPFC_CTL_PORT_STA:
4751 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4752 "Port StaReg: 0x%08x\n",
4753 readl(phba->sli4_hba.conf_regs_memmap_p +
4754 LPFC_CTL_PORT_STA_OFFSET));
4755 break;
4756 case LPFC_CTL_PORT_CTL:
4757 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4758 "Port CtlReg: 0x%08x\n",
4759 readl(phba->sli4_hba.conf_regs_memmap_p +
4760 LPFC_CTL_PORT_CTL_OFFSET));
4761 break;
4762 case LPFC_CTL_PORT_ER1:
4763 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4764 "Port Er1Reg: 0x%08x\n",
4765 readl(phba->sli4_hba.conf_regs_memmap_p +
4766 LPFC_CTL_PORT_ER1_OFFSET));
4767 break;
4768 case LPFC_CTL_PORT_ER2:
4769 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4770 "Port Er2Reg: 0x%08x\n",
4771 readl(phba->sli4_hba.conf_regs_memmap_p +
4772 LPFC_CTL_PORT_ER2_OFFSET));
4773 break;
4774 case LPFC_CTL_PDEV_CTL:
4775 len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
4776 "PDev CtlReg: 0x%08x\n",
4777 readl(phba->sli4_hba.conf_regs_memmap_p +
4778 LPFC_CTL_PDEV_CTL_OFFSET));
4779 break;
4780 default:
4781 break;
4782 }
4783 return len;
4784 }
4785
4786 /**
4787 * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
4788 * @file: The file pointer to read from.
4789 * @buf: The buffer to copy the data to.
4790 * @nbytes: The number of bytes to read.
4791 * @ppos: The position in the file to start reading from.
4792 *
4793 * Description:
4794 * This routine reads data from the @phba port and device registers according
4795 * to the idiag command, and copies to user @buf.
4796 *
4797 * Returns:
4798 * This function returns the amount of data that was read (this could be less
4799 * than @nbytes if the end of the file was reached) or a negative error value.
4800 **/
4801 static ssize_t
4802 lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes,
4803 loff_t *ppos)
4804 {
4805 struct lpfc_debug *debug = file->private_data;
4806 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
4807 uint32_t ctl_reg_id, i;
4808 char *pbuffer;
4809 int len = 0;
4810
4811 /* This is a user read operation */
4812 debug->op = LPFC_IDIAG_OP_RD;
4813
4814 if (!debug->buffer)
4815 debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL);
4816 if (!debug->buffer)
4817 return 0;
4818 pbuffer = debug->buffer;
4819
4820 if (*ppos)
4821 return 0;
4822
4823 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD)
4824 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
4825 else
4826 return 0;
4827
4828 if (ctl_reg_id == LPFC_CTL_ACC_ALL)
4829 for (i = 1; i <= LPFC_CTL_MAX; i++)
4830 len = lpfc_idiag_ctlacc_read_reg(phba,
4831 pbuffer, len, i);
4832 else
4833 len = lpfc_idiag_ctlacc_read_reg(phba,
4834 pbuffer, len, ctl_reg_id);
4835
4836 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
4837 }
4838
4839 /**
4840 * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
4841 * @file: The file pointer to read from.
4842 * @buf: The buffer to copy the user data from.
4843 * @nbytes: The number of bytes to get.
4844 * @ppos: The position in the file to start reading from.
4845 *
4846 * This routine get the debugfs idiag command struct from user space and then
4847 * perform the syntax check for port and device control register read (dump)
4848 * or write (set) command accordingly.
4849 *
4850 * It returns the @nbytges passing in from debugfs user space when successful.
4851 * In case of error conditions, it returns proper error code back to the user
4852 * space.
4853 **/
4854 static ssize_t
4855 lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf,
4856 size_t nbytes, loff_t *ppos)
4857 {
4858 struct lpfc_debug *debug = file->private_data;
4859 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
4860 uint32_t ctl_reg_id, value, reg_val = 0;
4861 void __iomem *ctl_reg;
4862 int rc;
4863
4864 /* This is a user write operation */
4865 debug->op = LPFC_IDIAG_OP_WR;
4866
4867 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
4868 if (rc < 0)
4869 return rc;
4870
4871 /* Sanity check on command line arguments */
4872 ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
4873 value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX];
4874
4875 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
4876 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
4877 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
4878 if (rc != LPFC_CTL_ACC_WR_CMD_ARG)
4879 goto error_out;
4880 if (ctl_reg_id > LPFC_CTL_MAX)
4881 goto error_out;
4882 } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) {
4883 if (rc != LPFC_CTL_ACC_RD_CMD_ARG)
4884 goto error_out;
4885 if ((ctl_reg_id > LPFC_CTL_MAX) &&
4886 (ctl_reg_id != LPFC_CTL_ACC_ALL))
4887 goto error_out;
4888 } else
4889 goto error_out;
4890
4891 /* Perform the write access operation */
4892 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
4893 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
4894 idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
4895 switch (ctl_reg_id) {
4896 case LPFC_CTL_PORT_SEM:
4897 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4898 LPFC_CTL_PORT_SEM_OFFSET;
4899 break;
4900 case LPFC_CTL_PORT_STA:
4901 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4902 LPFC_CTL_PORT_STA_OFFSET;
4903 break;
4904 case LPFC_CTL_PORT_CTL:
4905 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4906 LPFC_CTL_PORT_CTL_OFFSET;
4907 break;
4908 case LPFC_CTL_PORT_ER1:
4909 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4910 LPFC_CTL_PORT_ER1_OFFSET;
4911 break;
4912 case LPFC_CTL_PORT_ER2:
4913 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4914 LPFC_CTL_PORT_ER2_OFFSET;
4915 break;
4916 case LPFC_CTL_PDEV_CTL:
4917 ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
4918 LPFC_CTL_PDEV_CTL_OFFSET;
4919 break;
4920 default:
4921 goto error_out;
4922 }
4923
4924 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR)
4925 reg_val = value;
4926 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) {
4927 reg_val = readl(ctl_reg);
4928 reg_val |= value;
4929 }
4930 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
4931 reg_val = readl(ctl_reg);
4932 reg_val &= ~value;
4933 }
4934 writel(reg_val, ctl_reg);
4935 readl(ctl_reg); /* flush */
4936 }
4937 return nbytes;
4938
4939 error_out:
4940 /* Clean out command structure on command error out */
4941 memset(&idiag, 0, sizeof(idiag));
4942 return -EINVAL;
4943 }
4944
4945 /**
4946 * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
4947 * @phba: Pointer to HBA context object.
4948 * @pbuffer: Pointer to data buffer.
4949 *
4950 * Description:
4951 * This routine gets the driver mailbox access debugfs setup information.
4952 *
4953 * Returns:
4954 * This function returns the amount of data that was read (this could be less
4955 * than @nbytes if the end of the file was reached) or a negative error value.
4956 **/
4957 static int
4958 lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
4959 {
4960 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
4961 int len = 0;
4962
4963 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
4964 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
4965 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
4966 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
4967
4968 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
4969 "mbx_dump_map: 0x%08x\n", mbx_dump_map);
4970 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
4971 "mbx_dump_cnt: %04d\n", mbx_dump_cnt);
4972 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
4973 "mbx_word_cnt: %04d\n", mbx_word_cnt);
4974 len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
4975 "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
4976
4977 return len;
4978 }
4979
4980 /**
4981 * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
4982 * @file: The file pointer to read from.
4983 * @buf: The buffer to copy the data to.
4984 * @nbytes: The number of bytes to read.
4985 * @ppos: The position in the file to start reading from.
4986 *
4987 * Description:
4988 * This routine reads data from the @phba driver mailbox access debugfs setup
4989 * information.
4990 *
4991 * Returns:
4992 * This function returns the amount of data that was read (this could be less
4993 * than @nbytes if the end of the file was reached) or a negative error value.
4994 **/
4995 static ssize_t
4996 lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes,
4997 loff_t *ppos)
4998 {
4999 struct lpfc_debug *debug = file->private_data;
5000 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
5001 char *pbuffer;
5002 int len = 0;
5003
5004 /* This is a user read operation */
5005 debug->op = LPFC_IDIAG_OP_RD;
5006
5007 if (!debug->buffer)
5008 debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL);
5009 if (!debug->buffer)
5010 return 0;
5011 pbuffer = debug->buffer;
5012
5013 if (*ppos)
5014 return 0;
5015
5016 if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) &&
5017 (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP))
5018 return 0;
5019
5020 len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer);
5021
5022 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
5023 }
5024
5025 /**
5026 * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
5027 * @file: The file pointer to read from.
5028 * @buf: The buffer to copy the user data from.
5029 * @nbytes: The number of bytes to get.
5030 * @ppos: The position in the file to start reading from.
5031 *
5032 * This routine get the debugfs idiag command struct from user space and then
5033 * perform the syntax check for driver mailbox command (dump) and sets up the
5034 * necessary states in the idiag command struct accordingly.
5035 *
5036 * It returns the @nbytges passing in from debugfs user space when successful.
5037 * In case of error conditions, it returns proper error code back to the user
5038 * space.
5039 **/
5040 static ssize_t
5041 lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf,
5042 size_t nbytes, loff_t *ppos)
5043 {
5044 struct lpfc_debug *debug = file->private_data;
5045 uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
5046 int rc;
5047
5048 /* This is a user write operation */
5049 debug->op = LPFC_IDIAG_OP_WR;
5050
5051 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
5052 if (rc < 0)
5053 return rc;
5054
5055 /* Sanity check on command line arguments */
5056 mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
5057 mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
5058 mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
5059 mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
5060
5061 if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) {
5062 if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL))
5063 goto error_out;
5064 if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) &&
5065 (mbx_dump_map != LPFC_MBX_DMP_ALL))
5066 goto error_out;
5067 if (mbx_word_cnt > sizeof(MAILBOX_t))
5068 goto error_out;
5069 } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) {
5070 if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL))
5071 goto error_out;
5072 if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) &&
5073 (mbx_dump_map != LPFC_MBX_DMP_ALL))
5074 goto error_out;
5075 if (mbx_word_cnt > (BSG_MBOX_SIZE)/4)
5076 goto error_out;
5077 if (mbx_mbox_cmd != 0x9b)
5078 goto error_out;
5079 } else
5080 goto error_out;
5081
5082 if (mbx_word_cnt == 0)
5083 goto error_out;
5084 if (rc != LPFC_MBX_DMP_ARG)
5085 goto error_out;
5086 if (mbx_mbox_cmd & ~0xff)
5087 goto error_out;
5088
5089 /* condition for stop mailbox dump */
5090 if (mbx_dump_cnt == 0)
5091 goto reset_out;
5092
5093 return nbytes;
5094
5095 reset_out:
5096 /* Clean out command structure on command error out */
5097 memset(&idiag, 0, sizeof(idiag));
5098 return nbytes;
5099
5100 error_out:
5101 /* Clean out command structure on command error out */
5102 memset(&idiag, 0, sizeof(idiag));
5103 return -EINVAL;
5104 }
5105
5106 /**
5107 * lpfc_idiag_extacc_avail_get - get the available extents information
5108 * @phba: pointer to lpfc hba data structure.
5109 * @pbuffer: pointer to internal buffer.
5110 * @len: length into the internal buffer data has been copied.
5111 *
5112 * Description:
5113 * This routine is to get the available extent information.
5114 *
5115 * Returns:
5116 * overall lenth of the data read into the internal buffer.
5117 **/
5118 static int
5119 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
5120 {
5121 uint16_t ext_cnt, ext_size;
5122
5123 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5124 "\nAvailable Extents Information:\n");
5125
5126 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5127 "\tPort Available VPI extents: ");
5128 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
5129 &ext_cnt, &ext_size);
5130 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5131 "Count %3d, Size %3d\n", ext_cnt, ext_size);
5132
5133 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5134 "\tPort Available VFI extents: ");
5135 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
5136 &ext_cnt, &ext_size);
5137 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5138 "Count %3d, Size %3d\n", ext_cnt, ext_size);
5139
5140 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5141 "\tPort Available RPI extents: ");
5142 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
5143 &ext_cnt, &ext_size);
5144 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5145 "Count %3d, Size %3d\n", ext_cnt, ext_size);
5146
5147 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5148 "\tPort Available XRI extents: ");
5149 lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
5150 &ext_cnt, &ext_size);
5151 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5152 "Count %3d, Size %3d\n", ext_cnt, ext_size);
5153
5154 return len;
5155 }
5156
5157 /**
5158 * lpfc_idiag_extacc_alloc_get - get the allocated extents information
5159 * @phba: pointer to lpfc hba data structure.
5160 * @pbuffer: pointer to internal buffer.
5161 * @len: length into the internal buffer data has been copied.
5162 *
5163 * Description:
5164 * This routine is to get the allocated extent information.
5165 *
5166 * Returns:
5167 * overall lenth of the data read into the internal buffer.
5168 **/
5169 static int
5170 lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
5171 {
5172 uint16_t ext_cnt, ext_size;
5173 int rc;
5174
5175 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5176 "\nAllocated Extents Information:\n");
5177
5178 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5179 "\tHost Allocated VPI extents: ");
5180 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
5181 &ext_cnt, &ext_size);
5182 if (!rc)
5183 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5184 "Port %d Extent %3d, Size %3d\n",
5185 phba->brd_no, ext_cnt, ext_size);
5186 else
5187 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5188 "N/A\n");
5189
5190 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5191 "\tHost Allocated VFI extents: ");
5192 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
5193 &ext_cnt, &ext_size);
5194 if (!rc)
5195 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5196 "Port %d Extent %3d, Size %3d\n",
5197 phba->brd_no, ext_cnt, ext_size);
5198 else
5199 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5200 "N/A\n");
5201
5202 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5203 "\tHost Allocated RPI extents: ");
5204 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
5205 &ext_cnt, &ext_size);
5206 if (!rc)
5207 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5208 "Port %d Extent %3d, Size %3d\n",
5209 phba->brd_no, ext_cnt, ext_size);
5210 else
5211 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5212 "N/A\n");
5213
5214 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5215 "\tHost Allocated XRI extents: ");
5216 rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
5217 &ext_cnt, &ext_size);
5218 if (!rc)
5219 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5220 "Port %d Extent %3d, Size %3d\n",
5221 phba->brd_no, ext_cnt, ext_size);
5222 else
5223 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5224 "N/A\n");
5225
5226 return len;
5227 }
5228
5229 /**
5230 * lpfc_idiag_extacc_drivr_get - get driver extent information
5231 * @phba: pointer to lpfc hba data structure.
5232 * @pbuffer: pointer to internal buffer.
5233 * @len: length into the internal buffer data has been copied.
5234 *
5235 * Description:
5236 * This routine is to get the driver extent information.
5237 *
5238 * Returns:
5239 * overall lenth of the data read into the internal buffer.
5240 **/
5241 static int
5242 lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
5243 {
5244 struct lpfc_rsrc_blks *rsrc_blks;
5245 int index;
5246
5247 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5248 "\nDriver Extents Information:\n");
5249
5250 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5251 "\tVPI extents:\n");
5252 index = 0;
5253 list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
5254 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5255 "\t\tBlock %3d: Start %4d, Count %4d\n",
5256 index, rsrc_blks->rsrc_start,
5257 rsrc_blks->rsrc_size);
5258 index++;
5259 }
5260 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5261 "\tVFI extents:\n");
5262 index = 0;
5263 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
5264 list) {
5265 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5266 "\t\tBlock %3d: Start %4d, Count %4d\n",
5267 index, rsrc_blks->rsrc_start,
5268 rsrc_blks->rsrc_size);
5269 index++;
5270 }
5271
5272 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5273 "\tRPI extents:\n");
5274 index = 0;
5275 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
5276 list) {
5277 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5278 "\t\tBlock %3d: Start %4d, Count %4d\n",
5279 index, rsrc_blks->rsrc_start,
5280 rsrc_blks->rsrc_size);
5281 index++;
5282 }
5283
5284 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5285 "\tXRI extents:\n");
5286 index = 0;
5287 list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
5288 list) {
5289 len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
5290 "\t\tBlock %3d: Start %4d, Count %4d\n",
5291 index, rsrc_blks->rsrc_start,
5292 rsrc_blks->rsrc_size);
5293 index++;
5294 }
5295
5296 return len;
5297 }
5298
5299 /**
5300 * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
5301 * @file: The file pointer to read from.
5302 * @buf: The buffer to copy the user data from.
5303 * @nbytes: The number of bytes to get.
5304 * @ppos: The position in the file to start reading from.
5305 *
5306 * This routine get the debugfs idiag command struct from user space and then
5307 * perform the syntax check for extent information access commands and sets
5308 * up the necessary states in the idiag command struct accordingly.
5309 *
5310 * It returns the @nbytges passing in from debugfs user space when successful.
5311 * In case of error conditions, it returns proper error code back to the user
5312 * space.
5313 **/
5314 static ssize_t
5315 lpfc_idiag_extacc_write(struct file *file, const char __user *buf,
5316 size_t nbytes, loff_t *ppos)
5317 {
5318 struct lpfc_debug *debug = file->private_data;
5319 uint32_t ext_map;
5320 int rc;
5321
5322 /* This is a user write operation */
5323 debug->op = LPFC_IDIAG_OP_WR;
5324
5325 rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
5326 if (rc < 0)
5327 return rc;
5328
5329 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
5330
5331 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
5332 goto error_out;
5333 if (rc != LPFC_EXT_ACC_CMD_ARG)
5334 goto error_out;
5335 if (!(ext_map & LPFC_EXT_ACC_ALL))
5336 goto error_out;
5337
5338 return nbytes;
5339 error_out:
5340 /* Clean out command structure on command error out */
5341 memset(&idiag, 0, sizeof(idiag));
5342 return -EINVAL;
5343 }
5344
5345 /**
5346 * lpfc_idiag_extacc_read - idiag debugfs read access to extent information
5347 * @file: The file pointer to read from.
5348 * @buf: The buffer to copy the data to.
5349 * @nbytes: The number of bytes to read.
5350 * @ppos: The position in the file to start reading from.
5351 *
5352 * Description:
5353 * This routine reads data from the proper extent information according to
5354 * the idiag command, and copies to user @buf.
5355 *
5356 * Returns:
5357 * This function returns the amount of data that was read (this could be less
5358 * than @nbytes if the end of the file was reached) or a negative error value.
5359 **/
5360 static ssize_t
5361 lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes,
5362 loff_t *ppos)
5363 {
5364 struct lpfc_debug *debug = file->private_data;
5365 struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
5366 char *pbuffer;
5367 uint32_t ext_map;
5368 int len = 0;
5369
5370 /* This is a user read operation */
5371 debug->op = LPFC_IDIAG_OP_RD;
5372
5373 if (!debug->buffer)
5374 debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL);
5375 if (!debug->buffer)
5376 return 0;
5377 pbuffer = debug->buffer;
5378 if (*ppos)
5379 return 0;
5380 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
5381 return 0;
5382
5383 ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
5384 if (ext_map & LPFC_EXT_ACC_AVAIL)
5385 len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len);
5386 if (ext_map & LPFC_EXT_ACC_ALLOC)
5387 len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len);
5388 if (ext_map & LPFC_EXT_ACC_DRIVR)
5389 len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len);
5390
5391 return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
5392 }
5393
5394 #undef lpfc_debugfs_op_disc_trc
5395 static const struct file_operations lpfc_debugfs_op_disc_trc = {
5396 .owner = THIS_MODULE,
5397 .open = lpfc_debugfs_disc_trc_open,
5398 .llseek = lpfc_debugfs_lseek,
5399 .read = lpfc_debugfs_read,
5400 .release = lpfc_debugfs_release,
5401 };
5402
5403 #undef lpfc_debugfs_op_nodelist
5404 static const struct file_operations lpfc_debugfs_op_nodelist = {
5405 .owner = THIS_MODULE,
5406 .open = lpfc_debugfs_nodelist_open,
5407 .llseek = lpfc_debugfs_lseek,
5408 .read = lpfc_debugfs_read,
5409 .release = lpfc_debugfs_release,
5410 };
5411
5412 #undef lpfc_debugfs_op_multixripools
5413 static const struct file_operations lpfc_debugfs_op_multixripools = {
5414 .owner = THIS_MODULE,
5415 .open = lpfc_debugfs_multixripools_open,
5416 .llseek = lpfc_debugfs_lseek,
5417 .read = lpfc_debugfs_read,
5418 .write = lpfc_debugfs_multixripools_write,
5419 .release = lpfc_debugfs_release,
5420 };
5421
5422 #undef lpfc_debugfs_op_hbqinfo
5423 static const struct file_operations lpfc_debugfs_op_hbqinfo = {
5424 .owner = THIS_MODULE,
5425 .open = lpfc_debugfs_hbqinfo_open,
5426 .llseek = lpfc_debugfs_lseek,
5427 .read = lpfc_debugfs_read,
5428 .release = lpfc_debugfs_release,
5429 };
5430
5431 #ifdef LPFC_HDWQ_LOCK_STAT
5432 #undef lpfc_debugfs_op_lockstat
5433 static const struct file_operations lpfc_debugfs_op_lockstat = {
5434 .owner = THIS_MODULE,
5435 .open = lpfc_debugfs_lockstat_open,
5436 .llseek = lpfc_debugfs_lseek,
5437 .read = lpfc_debugfs_read,
5438 .write = lpfc_debugfs_lockstat_write,
5439 .release = lpfc_debugfs_release,
5440 };
5441 #endif
5442
5443 #undef lpfc_debugfs_op_dumpHBASlim
5444 static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
5445 .owner = THIS_MODULE,
5446 .open = lpfc_debugfs_dumpHBASlim_open,
5447 .llseek = lpfc_debugfs_lseek,
5448 .read = lpfc_debugfs_read,
5449 .release = lpfc_debugfs_release,
5450 };
5451
5452 #undef lpfc_debugfs_op_dumpHostSlim
5453 static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
5454 .owner = THIS_MODULE,
5455 .open = lpfc_debugfs_dumpHostSlim_open,
5456 .llseek = lpfc_debugfs_lseek,
5457 .read = lpfc_debugfs_read,
5458 .release = lpfc_debugfs_release,
5459 };
5460
5461 #undef lpfc_debugfs_op_nvmestat
5462 static const struct file_operations lpfc_debugfs_op_nvmestat = {
5463 .owner = THIS_MODULE,
5464 .open = lpfc_debugfs_nvmestat_open,
5465 .llseek = lpfc_debugfs_lseek,
5466 .read = lpfc_debugfs_read,
5467 .write = lpfc_debugfs_nvmestat_write,
5468 .release = lpfc_debugfs_release,
5469 };
5470
5471 #undef lpfc_debugfs_op_scsistat
5472 static const struct file_operations lpfc_debugfs_op_scsistat = {
5473 .owner = THIS_MODULE,
5474 .open = lpfc_debugfs_scsistat_open,
5475 .llseek = lpfc_debugfs_lseek,
5476 .read = lpfc_debugfs_read,
5477 .write = lpfc_debugfs_scsistat_write,
5478 .release = lpfc_debugfs_release,
5479 };
5480
5481 #undef lpfc_debugfs_op_nvmektime
5482 static const struct file_operations lpfc_debugfs_op_nvmektime = {
5483 .owner = THIS_MODULE,
5484 .open = lpfc_debugfs_nvmektime_open,
5485 .llseek = lpfc_debugfs_lseek,
5486 .read = lpfc_debugfs_read,
5487 .write = lpfc_debugfs_nvmektime_write,
5488 .release = lpfc_debugfs_release,
5489 };
5490
5491 #undef lpfc_debugfs_op_nvmeio_trc
5492 static const struct file_operations lpfc_debugfs_op_nvmeio_trc = {
5493 .owner = THIS_MODULE,
5494 .open = lpfc_debugfs_nvmeio_trc_open,
5495 .llseek = lpfc_debugfs_lseek,
5496 .read = lpfc_debugfs_read,
5497 .write = lpfc_debugfs_nvmeio_trc_write,
5498 .release = lpfc_debugfs_release,
5499 };
5500
5501 #undef lpfc_debugfs_op_cpucheck
5502 static const struct file_operations lpfc_debugfs_op_cpucheck = {
5503 .owner = THIS_MODULE,
5504 .open = lpfc_debugfs_cpucheck_open,
5505 .llseek = lpfc_debugfs_lseek,
5506 .read = lpfc_debugfs_read,
5507 .write = lpfc_debugfs_cpucheck_write,
5508 .release = lpfc_debugfs_release,
5509 };
5510
5511 #undef lpfc_debugfs_op_dumpData
5512 static const struct file_operations lpfc_debugfs_op_dumpData = {
5513 .owner = THIS_MODULE,
5514 .open = lpfc_debugfs_dumpData_open,
5515 .llseek = lpfc_debugfs_lseek,
5516 .read = lpfc_debugfs_read,
5517 .write = lpfc_debugfs_dumpDataDif_write,
5518 .release = lpfc_debugfs_dumpDataDif_release,
5519 };
5520
5521 #undef lpfc_debugfs_op_dumpDif
5522 static const struct file_operations lpfc_debugfs_op_dumpDif = {
5523 .owner = THIS_MODULE,
5524 .open = lpfc_debugfs_dumpDif_open,
5525 .llseek = lpfc_debugfs_lseek,
5526 .read = lpfc_debugfs_read,
5527 .write = lpfc_debugfs_dumpDataDif_write,
5528 .release = lpfc_debugfs_dumpDataDif_release,
5529 };
5530
5531 #undef lpfc_debugfs_op_dif_err
5532 static const struct file_operations lpfc_debugfs_op_dif_err = {
5533 .owner = THIS_MODULE,
5534 .open = simple_open,
5535 .llseek = lpfc_debugfs_lseek,
5536 .read = lpfc_debugfs_dif_err_read,
5537 .write = lpfc_debugfs_dif_err_write,
5538 .release = lpfc_debugfs_dif_err_release,
5539 };
5540
5541 #undef lpfc_debugfs_op_slow_ring_trc
5542 static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
5543 .owner = THIS_MODULE,
5544 .open = lpfc_debugfs_slow_ring_trc_open,
5545 .llseek = lpfc_debugfs_lseek,
5546 .read = lpfc_debugfs_read,
5547 .release = lpfc_debugfs_release,
5548 };
5549
5550 static struct dentry *lpfc_debugfs_root = NULL;
5551 static atomic_t lpfc_debugfs_hba_count;
5552
5553 /*
5554 * File operations for the iDiag debugfs
5555 */
5556 #undef lpfc_idiag_op_pciCfg
5557 static const struct file_operations lpfc_idiag_op_pciCfg = {
5558 .owner = THIS_MODULE,
5559 .open = lpfc_idiag_open,
5560 .llseek = lpfc_debugfs_lseek,
5561 .read = lpfc_idiag_pcicfg_read,
5562 .write = lpfc_idiag_pcicfg_write,
5563 .release = lpfc_idiag_cmd_release,
5564 };
5565
5566 #undef lpfc_idiag_op_barAcc
5567 static const struct file_operations lpfc_idiag_op_barAcc = {
5568 .owner = THIS_MODULE,
5569 .open = lpfc_idiag_open,
5570 .llseek = lpfc_debugfs_lseek,
5571 .read = lpfc_idiag_baracc_read,
5572 .write = lpfc_idiag_baracc_write,
5573 .release = lpfc_idiag_cmd_release,
5574 };
5575
5576 #undef lpfc_idiag_op_queInfo
5577 static const struct file_operations lpfc_idiag_op_queInfo = {
5578 .owner = THIS_MODULE,
5579 .open = lpfc_idiag_open,
5580 .read = lpfc_idiag_queinfo_read,
5581 .release = lpfc_idiag_release,
5582 };
5583
5584 #undef lpfc_idiag_op_queAcc
5585 static const struct file_operations lpfc_idiag_op_queAcc = {
5586 .owner = THIS_MODULE,
5587 .open = lpfc_idiag_open,
5588 .llseek = lpfc_debugfs_lseek,
5589 .read = lpfc_idiag_queacc_read,
5590 .write = lpfc_idiag_queacc_write,
5591 .release = lpfc_idiag_cmd_release,
5592 };
5593
5594 #undef lpfc_idiag_op_drbAcc
5595 static const struct file_operations lpfc_idiag_op_drbAcc = {
5596 .owner = THIS_MODULE,
5597 .open = lpfc_idiag_open,
5598 .llseek = lpfc_debugfs_lseek,
5599 .read = lpfc_idiag_drbacc_read,
5600 .write = lpfc_idiag_drbacc_write,
5601 .release = lpfc_idiag_cmd_release,
5602 };
5603
5604 #undef lpfc_idiag_op_ctlAcc
5605 static const struct file_operations lpfc_idiag_op_ctlAcc = {
5606 .owner = THIS_MODULE,
5607 .open = lpfc_idiag_open,
5608 .llseek = lpfc_debugfs_lseek,
5609 .read = lpfc_idiag_ctlacc_read,
5610 .write = lpfc_idiag_ctlacc_write,
5611 .release = lpfc_idiag_cmd_release,
5612 };
5613
5614 #undef lpfc_idiag_op_mbxAcc
5615 static const struct file_operations lpfc_idiag_op_mbxAcc = {
5616 .owner = THIS_MODULE,
5617 .open = lpfc_idiag_open,
5618 .llseek = lpfc_debugfs_lseek,
5619 .read = lpfc_idiag_mbxacc_read,
5620 .write = lpfc_idiag_mbxacc_write,
5621 .release = lpfc_idiag_cmd_release,
5622 };
5623
5624 #undef lpfc_idiag_op_extAcc
5625 static const struct file_operations lpfc_idiag_op_extAcc = {
5626 .owner = THIS_MODULE,
5627 .open = lpfc_idiag_open,
5628 .llseek = lpfc_debugfs_lseek,
5629 .read = lpfc_idiag_extacc_read,
5630 .write = lpfc_idiag_extacc_write,
5631 .release = lpfc_idiag_cmd_release,
5632 };
5633
5634 #endif
5635
5636 /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
5637 * @phba: Pointer to HBA context object.
5638 * @dmabuf: Pointer to a DMA buffer descriptor.
5639 *
5640 * Description:
5641 * This routine dump a bsg pass-through non-embedded mailbox command with
5642 * external buffer.
5643 **/
5644 void
5645 lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
5646 enum mbox_type mbox_tp, enum dma_type dma_tp,
5647 enum sta_type sta_tp,
5648 struct lpfc_dmabuf *dmabuf, uint32_t ext_buf)
5649 {
5650 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
5651 uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt;
5652 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
5653 int len = 0;
5654 uint32_t do_dump = 0;
5655 uint32_t *pword;
5656 uint32_t i;
5657
5658 if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)
5659 return;
5660
5661 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
5662 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
5663 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
5664 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
5665
5666 if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) ||
5667 (*mbx_dump_cnt == 0) ||
5668 (*mbx_word_cnt == 0))
5669 return;
5670
5671 if (*mbx_mbox_cmd != 0x9B)
5672 return;
5673
5674 if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) {
5675 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) {
5676 do_dump |= LPFC_BSG_DMP_MBX_RD_MBX;
5677 pr_err("\nRead mbox command (x%x), "
5678 "nemb:0x%x, extbuf_cnt:%d:\n",
5679 sta_tp, nemb_tp, ext_buf);
5680 }
5681 }
5682 if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) {
5683 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) {
5684 do_dump |= LPFC_BSG_DMP_MBX_RD_BUF;
5685 pr_err("\nRead mbox buffer (x%x), "
5686 "nemb:0x%x, extbuf_seq:%d:\n",
5687 sta_tp, nemb_tp, ext_buf);
5688 }
5689 }
5690 if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) {
5691 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) {
5692 do_dump |= LPFC_BSG_DMP_MBX_WR_MBX;
5693 pr_err("\nWrite mbox command (x%x), "
5694 "nemb:0x%x, extbuf_cnt:%d:\n",
5695 sta_tp, nemb_tp, ext_buf);
5696 }
5697 }
5698 if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) {
5699 if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) {
5700 do_dump |= LPFC_BSG_DMP_MBX_WR_BUF;
5701 pr_err("\nWrite mbox buffer (x%x), "
5702 "nemb:0x%x, extbuf_seq:%d:\n",
5703 sta_tp, nemb_tp, ext_buf);
5704 }
5705 }
5706
5707 /* dump buffer content */
5708 if (do_dump) {
5709 pword = (uint32_t *)dmabuf->virt;
5710 for (i = 0; i < *mbx_word_cnt; i++) {
5711 if (!(i % 8)) {
5712 if (i != 0)
5713 pr_err("%s\n", line_buf);
5714 len = 0;
5715 len += scnprintf(line_buf+len,
5716 LPFC_MBX_ACC_LBUF_SZ-len,
5717 "%03d: ", i);
5718 }
5719 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
5720 "%08x ", (uint32_t)*pword);
5721 pword++;
5722 }
5723 if ((i - 1) % 8)
5724 pr_err("%s\n", line_buf);
5725 (*mbx_dump_cnt)--;
5726 }
5727
5728 /* Clean out command structure on reaching dump count */
5729 if (*mbx_dump_cnt == 0)
5730 memset(&idiag, 0, sizeof(idiag));
5731 return;
5732 #endif
5733 }
5734
5735 /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
5736 * @phba: Pointer to HBA context object.
5737 * @dmabuf: Pointer to a DMA buffer descriptor.
5738 *
5739 * Description:
5740 * This routine dump a pass-through non-embedded mailbox command from issue
5741 * mailbox command.
5742 **/
5743 void
5744 lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
5745 {
5746 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
5747 uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd;
5748 char line_buf[LPFC_MBX_ACC_LBUF_SZ];
5749 int len = 0;
5750 uint32_t *pword;
5751 uint8_t *pbyte;
5752 uint32_t i, j;
5753
5754 if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP)
5755 return;
5756
5757 mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
5758 mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
5759 mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
5760 mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
5761
5762 if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) ||
5763 (*mbx_dump_cnt == 0) ||
5764 (*mbx_word_cnt == 0))
5765 return;
5766
5767 if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) &&
5768 (*mbx_mbox_cmd != pmbox->mbxCommand))
5769 return;
5770
5771 /* dump buffer content */
5772 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) {
5773 pr_err("Mailbox command:0x%x dump by word:\n",
5774 pmbox->mbxCommand);
5775 pword = (uint32_t *)pmbox;
5776 for (i = 0; i < *mbx_word_cnt; i++) {
5777 if (!(i % 8)) {
5778 if (i != 0)
5779 pr_err("%s\n", line_buf);
5780 len = 0;
5781 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
5782 len += scnprintf(line_buf+len,
5783 LPFC_MBX_ACC_LBUF_SZ-len,
5784 "%03d: ", i);
5785 }
5786 len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
5787 "%08x ",
5788 ((uint32_t)*pword) & 0xffffffff);
5789 pword++;
5790 }
5791 if ((i - 1) % 8)
5792 pr_err("%s\n", line_buf);
5793 pr_err("\n");
5794 }
5795 if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) {
5796 pr_err("Mailbox command:0x%x dump by byte:\n",
5797 pmbox->mbxCommand);
5798 pbyte = (uint8_t *)pmbox;
5799 for (i = 0; i < *mbx_word_cnt; i++) {
5800 if (!(i % 8)) {
5801 if (i != 0)
5802 pr_err("%s\n", line_buf);
5803 len = 0;
5804 memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
5805 len += scnprintf(line_buf+len,
5806 LPFC_MBX_ACC_LBUF_SZ-len,
5807 "%03d: ", i);
5808 }
5809 for (j = 0; j < 4; j++) {
5810 len += scnprintf(line_buf+len,
5811 LPFC_MBX_ACC_LBUF_SZ-len,
5812 "%02x",
5813 ((uint8_t)*pbyte) & 0xff);
5814 pbyte++;
5815 }
5816 len += scnprintf(line_buf+len,
5817 LPFC_MBX_ACC_LBUF_SZ-len, " ");
5818 }
5819 if ((i - 1) % 8)
5820 pr_err("%s\n", line_buf);
5821 pr_err("\n");
5822 }
5823 (*mbx_dump_cnt)--;
5824
5825 /* Clean out command structure on reaching dump count */
5826 if (*mbx_dump_cnt == 0)
5827 memset(&idiag, 0, sizeof(idiag));
5828 return;
5829 #endif
5830 }
5831
5832 /**
5833 * lpfc_debugfs_initialize - Initialize debugfs for a vport
5834 * @vport: The vport pointer to initialize.
5835 *
5836 * Description:
5837 * When Debugfs is configured this routine sets up the lpfc debugfs file system.
5838 * If not already created, this routine will create the lpfc directory, and
5839 * lpfcX directory (for this HBA), and vportX directory for this vport. It will
5840 * also create each file used to access lpfc specific debugfs information.
5841 **/
5842 inline void
5843 lpfc_debugfs_initialize(struct lpfc_vport *vport)
5844 {
5845 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
5846 struct lpfc_hba *phba = vport->phba;
5847 char name[64];
5848 uint32_t num, i;
5849 bool pport_setup = false;
5850
5851 if (!lpfc_debugfs_enable)
5852 return;
5853
5854 /* Setup lpfc root directory */
5855 if (!lpfc_debugfs_root) {
5856 lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
5857 atomic_set(&lpfc_debugfs_hba_count, 0);
5858 }
5859 if (!lpfc_debugfs_start_time)
5860 lpfc_debugfs_start_time = jiffies;
5861
5862 /* Setup funcX directory for specific HBA PCI function */
5863 snprintf(name, sizeof(name), "fn%d", phba->brd_no);
5864 if (!phba->hba_debugfs_root) {
5865 pport_setup = true;
5866 phba->hba_debugfs_root =
5867 debugfs_create_dir(name, lpfc_debugfs_root);
5868 atomic_inc(&lpfc_debugfs_hba_count);
5869 atomic_set(&phba->debugfs_vport_count, 0);
5870
5871 /* Multi-XRI pools */
5872 snprintf(name, sizeof(name), "multixripools");
5873 phba->debug_multixri_pools =
5874 debugfs_create_file(name, S_IFREG | 0644,
5875 phba->hba_debugfs_root,
5876 phba,
5877 &lpfc_debugfs_op_multixripools);
5878 if (!phba->debug_multixri_pools) {
5879 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5880 "0527 Cannot create debugfs multixripools\n");
5881 goto debug_failed;
5882 }
5883
5884 /* Setup hbqinfo */
5885 snprintf(name, sizeof(name), "hbqinfo");
5886 phba->debug_hbqinfo =
5887 debugfs_create_file(name, S_IFREG | 0644,
5888 phba->hba_debugfs_root,
5889 phba, &lpfc_debugfs_op_hbqinfo);
5890
5891 #ifdef LPFC_HDWQ_LOCK_STAT
5892 /* Setup lockstat */
5893 snprintf(name, sizeof(name), "lockstat");
5894 phba->debug_lockstat =
5895 debugfs_create_file(name, S_IFREG | 0644,
5896 phba->hba_debugfs_root,
5897 phba, &lpfc_debugfs_op_lockstat);
5898 if (!phba->debug_lockstat) {
5899 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
5900 "4610 Cant create debugfs lockstat\n");
5901 goto debug_failed;
5902 }
5903 #endif
5904
5905 /* Setup dumpHBASlim */
5906 if (phba->sli_rev < LPFC_SLI_REV4) {
5907 snprintf(name, sizeof(name), "dumpHBASlim");
5908 phba->debug_dumpHBASlim =
5909 debugfs_create_file(name,
5910 S_IFREG|S_IRUGO|S_IWUSR,
5911 phba->hba_debugfs_root,
5912 phba, &lpfc_debugfs_op_dumpHBASlim);
5913 } else
5914 phba->debug_dumpHBASlim = NULL;
5915
5916 /* Setup dumpHostSlim */
5917 if (phba->sli_rev < LPFC_SLI_REV4) {
5918 snprintf(name, sizeof(name), "dumpHostSlim");
5919 phba->debug_dumpHostSlim =
5920 debugfs_create_file(name,
5921 S_IFREG|S_IRUGO|S_IWUSR,
5922 phba->hba_debugfs_root,
5923 phba, &lpfc_debugfs_op_dumpHostSlim);
5924 } else
5925 phba->debug_dumpHostSlim = NULL;
5926
5927 /* Setup dumpData */
5928 snprintf(name, sizeof(name), "dumpData");
5929 phba->debug_dumpData =
5930 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5931 phba->hba_debugfs_root,
5932 phba, &lpfc_debugfs_op_dumpData);
5933
5934 /* Setup dumpDif */
5935 snprintf(name, sizeof(name), "dumpDif");
5936 phba->debug_dumpDif =
5937 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5938 phba->hba_debugfs_root,
5939 phba, &lpfc_debugfs_op_dumpDif);
5940
5941 /* Setup DIF Error Injections */
5942 snprintf(name, sizeof(name), "InjErrLBA");
5943 phba->debug_InjErrLBA =
5944 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5945 phba->hba_debugfs_root,
5946 phba, &lpfc_debugfs_op_dif_err);
5947 phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
5948
5949 snprintf(name, sizeof(name), "InjErrNPortID");
5950 phba->debug_InjErrNPortID =
5951 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5952 phba->hba_debugfs_root,
5953 phba, &lpfc_debugfs_op_dif_err);
5954
5955 snprintf(name, sizeof(name), "InjErrWWPN");
5956 phba->debug_InjErrWWPN =
5957 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5958 phba->hba_debugfs_root,
5959 phba, &lpfc_debugfs_op_dif_err);
5960
5961 snprintf(name, sizeof(name), "writeGuardInjErr");
5962 phba->debug_writeGuard =
5963 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5964 phba->hba_debugfs_root,
5965 phba, &lpfc_debugfs_op_dif_err);
5966
5967 snprintf(name, sizeof(name), "writeAppInjErr");
5968 phba->debug_writeApp =
5969 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5970 phba->hba_debugfs_root,
5971 phba, &lpfc_debugfs_op_dif_err);
5972
5973 snprintf(name, sizeof(name), "writeRefInjErr");
5974 phba->debug_writeRef =
5975 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5976 phba->hba_debugfs_root,
5977 phba, &lpfc_debugfs_op_dif_err);
5978
5979 snprintf(name, sizeof(name), "readGuardInjErr");
5980 phba->debug_readGuard =
5981 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5982 phba->hba_debugfs_root,
5983 phba, &lpfc_debugfs_op_dif_err);
5984
5985 snprintf(name, sizeof(name), "readAppInjErr");
5986 phba->debug_readApp =
5987 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5988 phba->hba_debugfs_root,
5989 phba, &lpfc_debugfs_op_dif_err);
5990
5991 snprintf(name, sizeof(name), "readRefInjErr");
5992 phba->debug_readRef =
5993 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
5994 phba->hba_debugfs_root,
5995 phba, &lpfc_debugfs_op_dif_err);
5996
5997 /* Setup slow ring trace */
5998 if (lpfc_debugfs_max_slow_ring_trc) {
5999 num = lpfc_debugfs_max_slow_ring_trc - 1;
6000 if (num & lpfc_debugfs_max_slow_ring_trc) {
6001 /* Change to be a power of 2 */
6002 num = lpfc_debugfs_max_slow_ring_trc;
6003 i = 0;
6004 while (num > 1) {
6005 num = num >> 1;
6006 i++;
6007 }
6008 lpfc_debugfs_max_slow_ring_trc = (1 << i);
6009 pr_err("lpfc_debugfs_max_disc_trc changed to "
6010 "%d\n", lpfc_debugfs_max_disc_trc);
6011 }
6012 }
6013
6014 snprintf(name, sizeof(name), "slow_ring_trace");
6015 phba->debug_slow_ring_trc =
6016 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
6017 phba->hba_debugfs_root,
6018 phba, &lpfc_debugfs_op_slow_ring_trc);
6019 if (!phba->slow_ring_trc) {
6020 phba->slow_ring_trc = kmalloc(
6021 (sizeof(struct lpfc_debugfs_trc) *
6022 lpfc_debugfs_max_slow_ring_trc),
6023 GFP_KERNEL);
6024 if (!phba->slow_ring_trc) {
6025 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
6026 "0416 Cannot create debugfs "
6027 "slow_ring buffer\n");
6028 goto debug_failed;
6029 }
6030 atomic_set(&phba->slow_ring_trc_cnt, 0);
6031 memset(phba->slow_ring_trc, 0,
6032 (sizeof(struct lpfc_debugfs_trc) *
6033 lpfc_debugfs_max_slow_ring_trc));
6034 }
6035
6036 snprintf(name, sizeof(name), "nvmeio_trc");
6037 phba->debug_nvmeio_trc =
6038 debugfs_create_file(name, 0644,
6039 phba->hba_debugfs_root,
6040 phba, &lpfc_debugfs_op_nvmeio_trc);
6041
6042 atomic_set(&phba->nvmeio_trc_cnt, 0);
6043 if (lpfc_debugfs_max_nvmeio_trc) {
6044 num = lpfc_debugfs_max_nvmeio_trc - 1;
6045 if (num & lpfc_debugfs_max_disc_trc) {
6046 /* Change to be a power of 2 */
6047 num = lpfc_debugfs_max_nvmeio_trc;
6048 i = 0;
6049 while (num > 1) {
6050 num = num >> 1;
6051 i++;
6052 }
6053 lpfc_debugfs_max_nvmeio_trc = (1 << i);
6054 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6055 "0575 lpfc_debugfs_max_nvmeio_trc "
6056 "changed to %d\n",
6057 lpfc_debugfs_max_nvmeio_trc);
6058 }
6059 phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc;
6060
6061 /* Allocate trace buffer and initialize */
6062 phba->nvmeio_trc = kzalloc(
6063 (sizeof(struct lpfc_debugfs_nvmeio_trc) *
6064 phba->nvmeio_trc_size), GFP_KERNEL);
6065
6066 if (!phba->nvmeio_trc) {
6067 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6068 "0576 Cannot create debugfs "
6069 "nvmeio_trc buffer\n");
6070 goto nvmeio_off;
6071 }
6072 phba->nvmeio_trc_on = 1;
6073 phba->nvmeio_trc_output_idx = 0;
6074 phba->nvmeio_trc = NULL;
6075 } else {
6076 nvmeio_off:
6077 phba->nvmeio_trc_size = 0;
6078 phba->nvmeio_trc_on = 0;
6079 phba->nvmeio_trc_output_idx = 0;
6080 phba->nvmeio_trc = NULL;
6081 }
6082 }
6083
6084 snprintf(name, sizeof(name), "vport%d", vport->vpi);
6085 if (!vport->vport_debugfs_root) {
6086 vport->vport_debugfs_root =
6087 debugfs_create_dir(name, phba->hba_debugfs_root);
6088 atomic_inc(&phba->debugfs_vport_count);
6089 }
6090
6091 if (lpfc_debugfs_max_disc_trc) {
6092 num = lpfc_debugfs_max_disc_trc - 1;
6093 if (num & lpfc_debugfs_max_disc_trc) {
6094 /* Change to be a power of 2 */
6095 num = lpfc_debugfs_max_disc_trc;
6096 i = 0;
6097 while (num > 1) {
6098 num = num >> 1;
6099 i++;
6100 }
6101 lpfc_debugfs_max_disc_trc = (1 << i);
6102 pr_err("lpfc_debugfs_max_disc_trc changed to %d\n",
6103 lpfc_debugfs_max_disc_trc);
6104 }
6105 }
6106
6107 vport->disc_trc = kzalloc(
6108 (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
6109 GFP_KERNEL);
6110
6111 if (!vport->disc_trc) {
6112 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
6113 "0418 Cannot create debugfs disc trace "
6114 "buffer\n");
6115 goto debug_failed;
6116 }
6117 atomic_set(&vport->disc_trc_cnt, 0);
6118
6119 snprintf(name, sizeof(name), "discovery_trace");
6120 vport->debug_disc_trc =
6121 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
6122 vport->vport_debugfs_root,
6123 vport, &lpfc_debugfs_op_disc_trc);
6124 snprintf(name, sizeof(name), "nodelist");
6125 vport->debug_nodelist =
6126 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
6127 vport->vport_debugfs_root,
6128 vport, &lpfc_debugfs_op_nodelist);
6129
6130 snprintf(name, sizeof(name), "nvmestat");
6131 vport->debug_nvmestat =
6132 debugfs_create_file(name, 0644,
6133 vport->vport_debugfs_root,
6134 vport, &lpfc_debugfs_op_nvmestat);
6135
6136 snprintf(name, sizeof(name), "scsistat");
6137 vport->debug_scsistat =
6138 debugfs_create_file(name, 0644,
6139 vport->vport_debugfs_root,
6140 vport, &lpfc_debugfs_op_scsistat);
6141 if (!vport->debug_scsistat) {
6142 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
6143 "4611 Cannot create debugfs scsistat\n");
6144 goto debug_failed;
6145 }
6146
6147 snprintf(name, sizeof(name), "nvmektime");
6148 vport->debug_nvmektime =
6149 debugfs_create_file(name, 0644,
6150 vport->vport_debugfs_root,
6151 vport, &lpfc_debugfs_op_nvmektime);
6152
6153 snprintf(name, sizeof(name), "cpucheck");
6154 vport->debug_cpucheck =
6155 debugfs_create_file(name, 0644,
6156 vport->vport_debugfs_root,
6157 vport, &lpfc_debugfs_op_cpucheck);
6158
6159 /*
6160 * The following section is for additional directories/files for the
6161 * physical port.
6162 */
6163
6164 if (!pport_setup)
6165 goto debug_failed;
6166
6167 /*
6168 * iDiag debugfs root entry points for SLI4 device only
6169 */
6170 if (phba->sli_rev < LPFC_SLI_REV4)
6171 goto debug_failed;
6172
6173 snprintf(name, sizeof(name), "iDiag");
6174 if (!phba->idiag_root) {
6175 phba->idiag_root =
6176 debugfs_create_dir(name, phba->hba_debugfs_root);
6177 /* Initialize iDiag data structure */
6178 memset(&idiag, 0, sizeof(idiag));
6179 }
6180
6181 /* iDiag read PCI config space */
6182 snprintf(name, sizeof(name), "pciCfg");
6183 if (!phba->idiag_pci_cfg) {
6184 phba->idiag_pci_cfg =
6185 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
6186 phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
6187 idiag.offset.last_rd = 0;
6188 }
6189
6190 /* iDiag PCI BAR access */
6191 snprintf(name, sizeof(name), "barAcc");
6192 if (!phba->idiag_bar_acc) {
6193 phba->idiag_bar_acc =
6194 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
6195 phba->idiag_root, phba, &lpfc_idiag_op_barAcc);
6196 idiag.offset.last_rd = 0;
6197 }
6198
6199 /* iDiag get PCI function queue information */
6200 snprintf(name, sizeof(name), "queInfo");
6201 if (!phba->idiag_que_info) {
6202 phba->idiag_que_info =
6203 debugfs_create_file(name, S_IFREG|S_IRUGO,
6204 phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
6205 }
6206
6207 /* iDiag access PCI function queue */
6208 snprintf(name, sizeof(name), "queAcc");
6209 if (!phba->idiag_que_acc) {
6210 phba->idiag_que_acc =
6211 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
6212 phba->idiag_root, phba, &lpfc_idiag_op_queAcc);
6213 }
6214
6215 /* iDiag access PCI function doorbell registers */
6216 snprintf(name, sizeof(name), "drbAcc");
6217 if (!phba->idiag_drb_acc) {
6218 phba->idiag_drb_acc =
6219 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
6220 phba->idiag_root, phba, &lpfc_idiag_op_drbAcc);
6221 }
6222
6223 /* iDiag access PCI function control registers */
6224 snprintf(name, sizeof(name), "ctlAcc");
6225 if (!phba->idiag_ctl_acc) {
6226 phba->idiag_ctl_acc =
6227 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
6228 phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc);
6229 }
6230
6231 /* iDiag access mbox commands */
6232 snprintf(name, sizeof(name), "mbxAcc");
6233 if (!phba->idiag_mbx_acc) {
6234 phba->idiag_mbx_acc =
6235 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
6236 phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc);
6237 }
6238
6239 /* iDiag extents access commands */
6240 if (phba->sli4_hba.extents_in_use) {
6241 snprintf(name, sizeof(name), "extAcc");
6242 if (!phba->idiag_ext_acc) {
6243 phba->idiag_ext_acc =
6244 debugfs_create_file(name,
6245 S_IFREG|S_IRUGO|S_IWUSR,
6246 phba->idiag_root, phba,
6247 &lpfc_idiag_op_extAcc);
6248 }
6249 }
6250
6251 debug_failed:
6252 return;
6253 #endif
6254 }
6255
6256 /**
6257 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport
6258 * @vport: The vport pointer to remove from debugfs.
6259 *
6260 * Description:
6261 * When Debugfs is configured this routine removes debugfs file system elements
6262 * that are specific to this vport. It also checks to see if there are any
6263 * users left for the debugfs directories associated with the HBA and driver. If
6264 * this is the last user of the HBA directory or driver directory then it will
6265 * remove those from the debugfs infrastructure as well.
6266 **/
6267 inline void
6268 lpfc_debugfs_terminate(struct lpfc_vport *vport)
6269 {
6270 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
6271 struct lpfc_hba *phba = vport->phba;
6272
6273 kfree(vport->disc_trc);
6274 vport->disc_trc = NULL;
6275
6276 debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
6277 vport->debug_disc_trc = NULL;
6278
6279 debugfs_remove(vport->debug_nodelist); /* nodelist */
6280 vport->debug_nodelist = NULL;
6281
6282 debugfs_remove(vport->debug_nvmestat); /* nvmestat */
6283 vport->debug_nvmestat = NULL;
6284
6285 debugfs_remove(vport->debug_scsistat); /* scsistat */
6286 vport->debug_scsistat = NULL;
6287
6288 debugfs_remove(vport->debug_nvmektime); /* nvmektime */
6289 vport->debug_nvmektime = NULL;
6290
6291 debugfs_remove(vport->debug_cpucheck); /* cpucheck */
6292 vport->debug_cpucheck = NULL;
6293
6294 if (vport->vport_debugfs_root) {
6295 debugfs_remove(vport->vport_debugfs_root); /* vportX */
6296 vport->vport_debugfs_root = NULL;
6297 atomic_dec(&phba->debugfs_vport_count);
6298 }
6299
6300 if (atomic_read(&phba->debugfs_vport_count) == 0) {
6301
6302 debugfs_remove(phba->debug_multixri_pools); /* multixripools*/
6303 phba->debug_multixri_pools = NULL;
6304
6305 debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
6306 phba->debug_hbqinfo = NULL;
6307
6308 #ifdef LPFC_HDWQ_LOCK_STAT
6309 debugfs_remove(phba->debug_lockstat); /* lockstat */
6310 phba->debug_lockstat = NULL;
6311 #endif
6312 debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
6313 phba->debug_dumpHBASlim = NULL;
6314
6315 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
6316 phba->debug_dumpHostSlim = NULL;
6317
6318 debugfs_remove(phba->debug_dumpData); /* dumpData */
6319 phba->debug_dumpData = NULL;
6320
6321 debugfs_remove(phba->debug_dumpDif); /* dumpDif */
6322 phba->debug_dumpDif = NULL;
6323
6324 debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
6325 phba->debug_InjErrLBA = NULL;
6326
6327 debugfs_remove(phba->debug_InjErrNPortID);
6328 phba->debug_InjErrNPortID = NULL;
6329
6330 debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */
6331 phba->debug_InjErrWWPN = NULL;
6332
6333 debugfs_remove(phba->debug_writeGuard); /* writeGuard */
6334 phba->debug_writeGuard = NULL;
6335
6336 debugfs_remove(phba->debug_writeApp); /* writeApp */
6337 phba->debug_writeApp = NULL;
6338
6339 debugfs_remove(phba->debug_writeRef); /* writeRef */
6340 phba->debug_writeRef = NULL;
6341
6342 debugfs_remove(phba->debug_readGuard); /* readGuard */
6343 phba->debug_readGuard = NULL;
6344
6345 debugfs_remove(phba->debug_readApp); /* readApp */
6346 phba->debug_readApp = NULL;
6347
6348 debugfs_remove(phba->debug_readRef); /* readRef */
6349 phba->debug_readRef = NULL;
6350
6351 kfree(phba->slow_ring_trc);
6352 phba->slow_ring_trc = NULL;
6353
6354 /* slow_ring_trace */
6355 debugfs_remove(phba->debug_slow_ring_trc);
6356 phba->debug_slow_ring_trc = NULL;
6357
6358 debugfs_remove(phba->debug_nvmeio_trc);
6359 phba->debug_nvmeio_trc = NULL;
6360
6361 kfree(phba->nvmeio_trc);
6362 phba->nvmeio_trc = NULL;
6363
6364 /*
6365 * iDiag release
6366 */
6367 if (phba->sli_rev == LPFC_SLI_REV4) {
6368 /* iDiag extAcc */
6369 debugfs_remove(phba->idiag_ext_acc);
6370 phba->idiag_ext_acc = NULL;
6371
6372 /* iDiag mbxAcc */
6373 debugfs_remove(phba->idiag_mbx_acc);
6374 phba->idiag_mbx_acc = NULL;
6375
6376 /* iDiag ctlAcc */
6377 debugfs_remove(phba->idiag_ctl_acc);
6378 phba->idiag_ctl_acc = NULL;
6379
6380 /* iDiag drbAcc */
6381 debugfs_remove(phba->idiag_drb_acc);
6382 phba->idiag_drb_acc = NULL;
6383
6384 /* iDiag queAcc */
6385 debugfs_remove(phba->idiag_que_acc);
6386 phba->idiag_que_acc = NULL;
6387
6388 /* iDiag queInfo */
6389 debugfs_remove(phba->idiag_que_info);
6390 phba->idiag_que_info = NULL;
6391
6392 /* iDiag barAcc */
6393 debugfs_remove(phba->idiag_bar_acc);
6394 phba->idiag_bar_acc = NULL;
6395
6396 /* iDiag pciCfg */
6397 debugfs_remove(phba->idiag_pci_cfg);
6398 phba->idiag_pci_cfg = NULL;
6399
6400 /* Finally remove the iDiag debugfs root */
6401 debugfs_remove(phba->idiag_root);
6402 phba->idiag_root = NULL;
6403 }
6404
6405 if (phba->hba_debugfs_root) {
6406 debugfs_remove(phba->hba_debugfs_root); /* fnX */
6407 phba->hba_debugfs_root = NULL;
6408 atomic_dec(&lpfc_debugfs_hba_count);
6409 }
6410
6411 if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
6412 debugfs_remove(lpfc_debugfs_root); /* lpfc */
6413 lpfc_debugfs_root = NULL;
6414 }
6415 }
6416 #endif
6417 return;
6418 }
6419
6420 /*
6421 * Driver debug utility routines outside of debugfs. The debug utility
6422 * routines implemented here is intended to be used in the instrumented
6423 * debug driver for debugging host or port issues.
6424 */
6425
6426 /**
6427 * lpfc_debug_dump_all_queues - dump all the queues with a hba
6428 * @phba: Pointer to HBA context object.
6429 *
6430 * This function dumps entries of all the queues asociated with the @phba.
6431 **/
6432 void
6433 lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
6434 {
6435 int idx;
6436
6437 /*
6438 * Dump Work Queues (WQs)
6439 */
6440 lpfc_debug_dump_wq(phba, DUMP_MBX, 0);
6441 lpfc_debug_dump_wq(phba, DUMP_ELS, 0);
6442 lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0);
6443
6444 for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
6445 lpfc_debug_dump_wq(phba, DUMP_FCP, idx);
6446
6447 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6448 for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
6449 lpfc_debug_dump_wq(phba, DUMP_NVME, idx);
6450 }
6451
6452 lpfc_debug_dump_hdr_rq(phba);
6453 lpfc_debug_dump_dat_rq(phba);
6454 /*
6455 * Dump Complete Queues (CQs)
6456 */
6457 lpfc_debug_dump_cq(phba, DUMP_MBX, 0);
6458 lpfc_debug_dump_cq(phba, DUMP_ELS, 0);
6459 lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0);
6460
6461 for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
6462 lpfc_debug_dump_cq(phba, DUMP_FCP, idx);
6463
6464 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6465 for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
6466 lpfc_debug_dump_cq(phba, DUMP_NVME, idx);
6467 }
6468
6469 /*
6470 * Dump Event Queues (EQs)
6471 */
6472 for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
6473 lpfc_debug_dump_hba_eq(phba, idx);
6474 }
Linux with added FPC-III support