1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * |
3 | * Fibre Channel Host Bus Adapters. * |
4 | * Copyright (C) 2017-2023 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 | #include <linux/vmalloc.h> |
35 | |
36 | #include <scsi/scsi.h> |
37 | #include <scsi/scsi_device.h> |
38 | #include <scsi/scsi_host.h> |
39 | #include <scsi/scsi_transport_fc.h> |
40 | #include <scsi/fc/fc_fs.h> |
41 | |
42 | #include "lpfc_hw4.h" |
43 | #include "lpfc_hw.h" |
44 | #include "lpfc_sli.h" |
45 | #include "lpfc_sli4.h" |
46 | #include "lpfc_nl.h" |
47 | #include "lpfc_disc.h" |
48 | #include "lpfc.h" |
49 | #include "lpfc_scsi.h" |
50 | #include "lpfc_nvme.h" |
51 | #include "lpfc_logmsg.h" |
52 | #include "lpfc_crtn.h" |
53 | #include "lpfc_vport.h" |
54 | #include "lpfc_version.h" |
55 | #include "lpfc_compat.h" |
56 | #include "lpfc_debugfs.h" |
57 | #include "lpfc_bsg.h" |
58 | |
59 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
60 | /* |
61 | * debugfs interface |
62 | * |
63 | * To access this interface the user should: |
64 | * # mount -t debugfs none /sys/kernel/debug |
65 | * |
66 | * The lpfc debugfs directory hierarchy is: |
67 | * /sys/kernel/debug/lpfc/fnX/vportY |
68 | * where X is the lpfc hba function unique_id |
69 | * where Y is the vport VPI on that hba |
70 | * |
71 | * Debugging services available per vport: |
72 | * discovery_trace |
73 | * This is an ACSII readable file that contains a trace of the last |
74 | * lpfc_debugfs_max_disc_trc events that happened on a specific vport. |
75 | * See lpfc_debugfs.h for different categories of discovery events. |
76 | * To enable the discovery trace, the following module parameters must be set: |
77 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support |
78 | * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for |
79 | * EACH vport. X MUST also be a power of 2. |
80 | * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in |
81 | * lpfc_debugfs.h . |
82 | * |
83 | * slow_ring_trace |
84 | * This is an ACSII readable file that contains a trace of the last |
85 | * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. |
86 | * To enable the slow ring trace, the following module parameters must be set: |
87 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support |
88 | * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for |
89 | * the HBA. X MUST also be a power of 2. |
90 | */ |
91 | static int lpfc_debugfs_enable = 1; |
92 | module_param(lpfc_debugfs_enable, int, S_IRUGO); |
93 | MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services" ); |
94 | |
95 | /* This MUST be a power of 2 */ |
96 | static int lpfc_debugfs_max_disc_trc; |
97 | module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); |
98 | MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, |
99 | "Set debugfs discovery trace depth" ); |
100 | |
101 | /* This MUST be a power of 2 */ |
102 | static int lpfc_debugfs_max_slow_ring_trc; |
103 | module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); |
104 | MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, |
105 | "Set debugfs slow ring trace depth" ); |
106 | |
107 | /* This MUST be a power of 2 */ |
108 | static int lpfc_debugfs_max_nvmeio_trc; |
109 | module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444); |
110 | MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc, |
111 | "Set debugfs NVME IO trace depth" ); |
112 | |
113 | static int lpfc_debugfs_mask_disc_trc; |
114 | module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); |
115 | MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, |
116 | "Set debugfs discovery trace mask" ); |
117 | |
118 | #include <linux/debugfs.h> |
119 | |
120 | static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); |
121 | static unsigned long lpfc_debugfs_start_time = 0L; |
122 | |
123 | /* iDiag */ |
124 | static struct lpfc_idiag idiag; |
125 | |
126 | /** |
127 | * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer |
128 | * @vport: The vport to gather the log info from. |
129 | * @buf: The buffer to dump log into. |
130 | * @size: The maximum amount of data to process. |
131 | * |
132 | * Description: |
133 | * This routine gathers the lpfc discovery debugfs data from the @vport and |
134 | * dumps it to @buf up to @size number of bytes. It will start at the next entry |
135 | * in the log and process the log until the end of the buffer. Then it will |
136 | * gather from the beginning of the log and process until the current entry. |
137 | * |
138 | * Notes: |
139 | * Discovery logging will be disabled while while this routine dumps the log. |
140 | * |
141 | * Return Value: |
142 | * This routine returns the amount of bytes that were dumped into @buf and will |
143 | * not exceed @size. |
144 | **/ |
145 | static int |
146 | lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) |
147 | { |
148 | int i, index, len, enable; |
149 | uint32_t ms; |
150 | struct lpfc_debugfs_trc *dtp; |
151 | char *buffer; |
152 | |
153 | buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); |
154 | if (!buffer) |
155 | return 0; |
156 | |
157 | enable = lpfc_debugfs_enable; |
158 | lpfc_debugfs_enable = 0; |
159 | |
160 | len = 0; |
161 | index = (atomic_read(v: &vport->disc_trc_cnt) + 1) & |
162 | (lpfc_debugfs_max_disc_trc - 1); |
163 | for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { |
164 | dtp = vport->disc_trc + i; |
165 | if (!dtp->fmt) |
166 | continue; |
167 | ms = jiffies_to_msecs(j: dtp->jif - lpfc_debugfs_start_time); |
168 | snprintf(buf: buffer, |
169 | LPFC_DEBUG_TRC_ENTRY_SIZE, fmt: "%010d:%010d ms:%s\n" , |
170 | dtp->seq_cnt, ms, dtp->fmt); |
171 | len += scnprintf(buf: buf+len, size: size-len, fmt: buffer, |
172 | dtp->data1, dtp->data2, dtp->data3); |
173 | } |
174 | for (i = 0; i < index; i++) { |
175 | dtp = vport->disc_trc + i; |
176 | if (!dtp->fmt) |
177 | continue; |
178 | ms = jiffies_to_msecs(j: dtp->jif - lpfc_debugfs_start_time); |
179 | snprintf(buf: buffer, |
180 | LPFC_DEBUG_TRC_ENTRY_SIZE, fmt: "%010d:%010d ms:%s\n" , |
181 | dtp->seq_cnt, ms, dtp->fmt); |
182 | len += scnprintf(buf: buf+len, size: size-len, fmt: buffer, |
183 | dtp->data1, dtp->data2, dtp->data3); |
184 | } |
185 | |
186 | lpfc_debugfs_enable = enable; |
187 | kfree(objp: buffer); |
188 | |
189 | return len; |
190 | } |
191 | |
192 | /** |
193 | * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer |
194 | * @phba: The HBA to gather the log info from. |
195 | * @buf: The buffer to dump log into. |
196 | * @size: The maximum amount of data to process. |
197 | * |
198 | * Description: |
199 | * This routine gathers the lpfc slow ring debugfs data from the @phba and |
200 | * dumps it to @buf up to @size number of bytes. It will start at the next entry |
201 | * in the log and process the log until the end of the buffer. Then it will |
202 | * gather from the beginning of the log and process until the current entry. |
203 | * |
204 | * Notes: |
205 | * Slow ring logging will be disabled while while this routine dumps the log. |
206 | * |
207 | * Return Value: |
208 | * This routine returns the amount of bytes that were dumped into @buf and will |
209 | * not exceed @size. |
210 | **/ |
211 | static int |
212 | lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) |
213 | { |
214 | int i, index, len, enable; |
215 | uint32_t ms; |
216 | struct lpfc_debugfs_trc *dtp; |
217 | char *buffer; |
218 | |
219 | buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); |
220 | if (!buffer) |
221 | return 0; |
222 | |
223 | enable = lpfc_debugfs_enable; |
224 | lpfc_debugfs_enable = 0; |
225 | |
226 | len = 0; |
227 | index = (atomic_read(v: &phba->slow_ring_trc_cnt) + 1) & |
228 | (lpfc_debugfs_max_slow_ring_trc - 1); |
229 | for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { |
230 | dtp = phba->slow_ring_trc + i; |
231 | if (!dtp->fmt) |
232 | continue; |
233 | ms = jiffies_to_msecs(j: dtp->jif - lpfc_debugfs_start_time); |
234 | snprintf(buf: buffer, |
235 | LPFC_DEBUG_TRC_ENTRY_SIZE, fmt: "%010d:%010d ms:%s\n" , |
236 | dtp->seq_cnt, ms, dtp->fmt); |
237 | len += scnprintf(buf: buf+len, size: size-len, fmt: buffer, |
238 | dtp->data1, dtp->data2, dtp->data3); |
239 | } |
240 | for (i = 0; i < index; i++) { |
241 | dtp = phba->slow_ring_trc + i; |
242 | if (!dtp->fmt) |
243 | continue; |
244 | ms = jiffies_to_msecs(j: dtp->jif - lpfc_debugfs_start_time); |
245 | snprintf(buf: buffer, |
246 | LPFC_DEBUG_TRC_ENTRY_SIZE, fmt: "%010d:%010d ms:%s\n" , |
247 | dtp->seq_cnt, ms, dtp->fmt); |
248 | len += scnprintf(buf: buf+len, size: size-len, fmt: buffer, |
249 | dtp->data1, dtp->data2, dtp->data3); |
250 | } |
251 | |
252 | lpfc_debugfs_enable = enable; |
253 | kfree(objp: buffer); |
254 | |
255 | return len; |
256 | } |
257 | |
258 | static int lpfc_debugfs_last_hbq = -1; |
259 | |
260 | /** |
261 | * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer |
262 | * @phba: The HBA to gather host buffer info from. |
263 | * @buf: The buffer to dump log into. |
264 | * @size: The maximum amount of data to process. |
265 | * |
266 | * Description: |
267 | * This routine dumps the host buffer queue info from the @phba to @buf up to |
268 | * @size number of bytes. A header that describes the current hbq state will be |
269 | * dumped to @buf first and then info on each hbq entry will be dumped to @buf |
270 | * until @size bytes have been dumped or all the hbq info has been dumped. |
271 | * |
272 | * Notes: |
273 | * This routine will rotate through each configured HBQ each time called. |
274 | * |
275 | * Return Value: |
276 | * This routine returns the amount of bytes that were dumped into @buf and will |
277 | * not exceed @size. |
278 | **/ |
279 | static int |
280 | lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) |
281 | { |
282 | int len = 0; |
283 | int i, j, found, posted, low; |
284 | uint32_t phys, raw_index, getidx; |
285 | struct lpfc_hbq_init *hip; |
286 | struct hbq_s *hbqs; |
287 | struct lpfc_hbq_entry *hbqe; |
288 | struct lpfc_dmabuf *d_buf; |
289 | struct hbq_dmabuf *hbq_buf; |
290 | |
291 | if (phba->sli_rev != 3) |
292 | return 0; |
293 | |
294 | spin_lock_irq(lock: &phba->hbalock); |
295 | |
296 | /* toggle between multiple hbqs, if any */ |
297 | i = lpfc_sli_hbq_count(); |
298 | if (i > 1) { |
299 | lpfc_debugfs_last_hbq++; |
300 | if (lpfc_debugfs_last_hbq >= i) |
301 | lpfc_debugfs_last_hbq = 0; |
302 | } |
303 | else |
304 | lpfc_debugfs_last_hbq = 0; |
305 | |
306 | i = lpfc_debugfs_last_hbq; |
307 | |
308 | len += scnprintf(buf: buf+len, size: size-len, fmt: "HBQ %d Info\n" , i); |
309 | |
310 | hbqs = &phba->hbqs[i]; |
311 | posted = 0; |
312 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) |
313 | posted++; |
314 | |
315 | hip = lpfc_hbq_defs[i]; |
316 | len += scnprintf(buf: buf+len, size: size-len, |
317 | fmt: "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n" , |
318 | hip->hbq_index, hip->profile, hip->rn, |
319 | hip->buffer_count, hip->init_count, hip->add_count, posted); |
320 | |
321 | raw_index = phba->hbq_get[i]; |
322 | getidx = le32_to_cpu(raw_index); |
323 | len += scnprintf(buf: buf+len, size: size-len, |
324 | fmt: "entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n" , |
325 | hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, |
326 | hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); |
327 | |
328 | hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; |
329 | for (j=0; j<hbqs->entry_count; j++) { |
330 | len += scnprintf(buf: buf+len, size: size-len, |
331 | fmt: "%03d: %08x %04x %05x " , j, |
332 | le32_to_cpu(hbqe->bde.addrLow), |
333 | le32_to_cpu(hbqe->bde.tus.w), |
334 | le32_to_cpu(hbqe->buffer_tag)); |
335 | i = 0; |
336 | found = 0; |
337 | |
338 | /* First calculate if slot has an associated posted buffer */ |
339 | low = hbqs->hbqPutIdx - posted; |
340 | if (low >= 0) { |
341 | if ((j >= hbqs->hbqPutIdx) || (j < low)) { |
342 | len += scnprintf(buf: buf + len, size: size - len, |
343 | fmt: "Unused\n" ); |
344 | goto skipit; |
345 | } |
346 | } |
347 | else { |
348 | if ((j >= hbqs->hbqPutIdx) && |
349 | (j < (hbqs->entry_count+low))) { |
350 | len += scnprintf(buf: buf + len, size: size - len, |
351 | fmt: "Unused\n" ); |
352 | goto skipit; |
353 | } |
354 | } |
355 | |
356 | /* Get the Buffer info for the posted buffer */ |
357 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { |
358 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
359 | phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); |
360 | if (phys == le32_to_cpu(hbqe->bde.addrLow)) { |
361 | len += scnprintf(buf: buf+len, size: size-len, |
362 | fmt: "Buf%d: x%px %06x\n" , i, |
363 | hbq_buf->dbuf.virt, hbq_buf->tag); |
364 | found = 1; |
365 | break; |
366 | } |
367 | i++; |
368 | } |
369 | if (!found) { |
370 | len += scnprintf(buf: buf+len, size: size-len, fmt: "No DMAinfo?\n" ); |
371 | } |
372 | skipit: |
373 | hbqe++; |
374 | if (len > LPFC_HBQINFO_SIZE - 54) |
375 | break; |
376 | } |
377 | spin_unlock_irq(lock: &phba->hbalock); |
378 | return len; |
379 | } |
380 | |
381 | static int lpfc_debugfs_last_xripool; |
382 | |
383 | /** |
384 | * lpfc_debugfs_commonxripools_data - Dump Hardware Queue info to a buffer |
385 | * @phba: The HBA to gather host buffer info from. |
386 | * @buf: The buffer to dump log into. |
387 | * @size: The maximum amount of data to process. |
388 | * |
389 | * Description: |
390 | * This routine dumps the Hardware Queue info from the @phba to @buf up to |
391 | * @size number of bytes. A header that describes the current hdwq state will be |
392 | * dumped to @buf first and then info on each hdwq entry will be dumped to @buf |
393 | * until @size bytes have been dumped or all the hdwq info has been dumped. |
394 | * |
395 | * Notes: |
396 | * This routine will rotate through each configured Hardware Queue each |
397 | * time called. |
398 | * |
399 | * Return Value: |
400 | * This routine returns the amount of bytes that were dumped into @buf and will |
401 | * not exceed @size. |
402 | **/ |
403 | static int |
404 | lpfc_debugfs_commonxripools_data(struct lpfc_hba *phba, char *buf, int size) |
405 | { |
406 | struct lpfc_sli4_hdw_queue *qp; |
407 | int len = 0; |
408 | int i, out; |
409 | unsigned long iflag; |
410 | |
411 | for (i = 0; i < phba->cfg_hdw_queue; i++) { |
412 | if (len > (LPFC_DUMP_MULTIXRIPOOL_SIZE - 80)) |
413 | break; |
414 | qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_xripool]; |
415 | |
416 | len += scnprintf(buf: buf + len, size: size - len, fmt: "HdwQ %d Info " , i); |
417 | spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag); |
418 | spin_lock(lock: &qp->io_buf_list_get_lock); |
419 | spin_lock(lock: &qp->io_buf_list_put_lock); |
420 | out = qp->total_io_bufs - (qp->get_io_bufs + qp->put_io_bufs + |
421 | qp->abts_scsi_io_bufs + qp->abts_nvme_io_bufs); |
422 | len += scnprintf(buf: buf + len, size: size - len, |
423 | fmt: "tot:%d get:%d put:%d mt:%d " |
424 | "ABTS scsi:%d nvme:%d Out:%d\n" , |
425 | qp->total_io_bufs, qp->get_io_bufs, qp->put_io_bufs, |
426 | qp->empty_io_bufs, qp->abts_scsi_io_bufs, |
427 | qp->abts_nvme_io_bufs, out); |
428 | spin_unlock(lock: &qp->io_buf_list_put_lock); |
429 | spin_unlock(lock: &qp->io_buf_list_get_lock); |
430 | spin_unlock_irqrestore(lock: &qp->abts_io_buf_list_lock, flags: iflag); |
431 | |
432 | lpfc_debugfs_last_xripool++; |
433 | if (lpfc_debugfs_last_xripool >= phba->cfg_hdw_queue) |
434 | lpfc_debugfs_last_xripool = 0; |
435 | } |
436 | |
437 | return len; |
438 | } |
439 | |
440 | /** |
441 | * lpfc_debugfs_multixripools_data - Display multi-XRI pools information |
442 | * @phba: The HBA to gather host buffer info from. |
443 | * @buf: The buffer to dump log into. |
444 | * @size: The maximum amount of data to process. |
445 | * |
446 | * Description: |
447 | * This routine displays current multi-XRI pools information including XRI |
448 | * count in public, private and txcmplq. It also displays current high and |
449 | * low watermark. |
450 | * |
451 | * Return Value: |
452 | * This routine returns the amount of bytes that were dumped into @buf and will |
453 | * not exceed @size. |
454 | **/ |
455 | static int |
456 | lpfc_debugfs_multixripools_data(struct lpfc_hba *phba, char *buf, int size) |
457 | { |
458 | u32 i; |
459 | u32 hwq_count; |
460 | struct lpfc_sli4_hdw_queue *qp; |
461 | struct lpfc_multixri_pool *multixri_pool; |
462 | struct lpfc_pvt_pool *pvt_pool; |
463 | struct lpfc_pbl_pool *pbl_pool; |
464 | u32 txcmplq_cnt; |
465 | char tmp[LPFC_DEBUG_OUT_LINE_SZ] = {0}; |
466 | |
467 | if (phba->sli_rev != LPFC_SLI_REV4) |
468 | return 0; |
469 | |
470 | if (!phba->sli4_hba.hdwq) |
471 | return 0; |
472 | |
473 | if (!phba->cfg_xri_rebalancing) { |
474 | i = lpfc_debugfs_commonxripools_data(phba, buf, size); |
475 | return i; |
476 | } |
477 | |
478 | /* |
479 | * Pbl: Current number of free XRIs in public pool |
480 | * Pvt: Current number of free XRIs in private pool |
481 | * Busy: Current number of outstanding XRIs |
482 | * HWM: Current high watermark |
483 | * pvt_empty: Incremented by 1 when IO submission fails (no xri) |
484 | * pbl_empty: Incremented by 1 when all pbl_pool are empty during |
485 | * IO submission |
486 | */ |
487 | scnprintf(buf: tmp, size: sizeof(tmp), |
488 | fmt: "HWQ: Pbl Pvt Busy HWM | pvt_empty pbl_empty " ); |
489 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
490 | return strnlen(p: buf, maxlen: size); |
491 | |
492 | #ifdef LPFC_MXP_STAT |
493 | /* |
494 | * MAXH: Max high watermark seen so far |
495 | * above_lmt: Incremented by 1 if xri_owned > xri_limit during |
496 | * IO submission |
497 | * below_lmt: Incremented by 1 if xri_owned <= xri_limit during |
498 | * IO submission |
499 | * locPbl_hit: Incremented by 1 if successfully get a batch of XRI from |
500 | * local pbl_pool |
501 | * othPbl_hit: Incremented by 1 if successfully get a batch of XRI from |
502 | * other pbl_pool |
503 | */ |
504 | scnprintf(tmp, sizeof(tmp), |
505 | "MAXH above_lmt below_lmt locPbl_hit othPbl_hit" ); |
506 | if (strlcat(buf, tmp, size) >= size) |
507 | return strnlen(buf, size); |
508 | |
509 | /* |
510 | * sPbl: snapshot of Pbl 15 sec after stat gets cleared |
511 | * sPvt: snapshot of Pvt 15 sec after stat gets cleared |
512 | * sBusy: snapshot of Busy 15 sec after stat gets cleared |
513 | */ |
514 | scnprintf(tmp, sizeof(tmp), |
515 | " | sPbl sPvt sBusy" ); |
516 | if (strlcat(buf, tmp, size) >= size) |
517 | return strnlen(buf, size); |
518 | #endif |
519 | |
520 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "\n" ); |
521 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
522 | return strnlen(p: buf, maxlen: size); |
523 | |
524 | hwq_count = phba->cfg_hdw_queue; |
525 | for (i = 0; i < hwq_count; i++) { |
526 | qp = &phba->sli4_hba.hdwq[i]; |
527 | multixri_pool = qp->p_multixri_pool; |
528 | if (!multixri_pool) |
529 | continue; |
530 | pbl_pool = &multixri_pool->pbl_pool; |
531 | pvt_pool = &multixri_pool->pvt_pool; |
532 | txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt; |
533 | |
534 | scnprintf(buf: tmp, size: sizeof(tmp), |
535 | fmt: "%03d: %4d %4d %4d %4d | %10d %10d " , |
536 | i, pbl_pool->count, pvt_pool->count, |
537 | txcmplq_cnt, pvt_pool->high_watermark, |
538 | qp->empty_io_bufs, multixri_pool->pbl_empty_count); |
539 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
540 | break; |
541 | |
542 | #ifdef LPFC_MXP_STAT |
543 | scnprintf(tmp, sizeof(tmp), |
544 | "%4d %10d %10d %10d %10d" , |
545 | multixri_pool->stat_max_hwm, |
546 | multixri_pool->above_limit_count, |
547 | multixri_pool->below_limit_count, |
548 | multixri_pool->local_pbl_hit_count, |
549 | multixri_pool->other_pbl_hit_count); |
550 | if (strlcat(buf, tmp, size) >= size) |
551 | break; |
552 | |
553 | scnprintf(tmp, sizeof(tmp), |
554 | " | %4d %4d %5d" , |
555 | multixri_pool->stat_pbl_count, |
556 | multixri_pool->stat_pvt_count, |
557 | multixri_pool->stat_busy_count); |
558 | if (strlcat(buf, tmp, size) >= size) |
559 | break; |
560 | #endif |
561 | |
562 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "\n" ); |
563 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
564 | break; |
565 | } |
566 | return strnlen(p: buf, maxlen: size); |
567 | } |
568 | |
569 | |
570 | #ifdef LPFC_HDWQ_LOCK_STAT |
571 | static int lpfc_debugfs_last_lock; |
572 | |
573 | /** |
574 | * lpfc_debugfs_lockstat_data - Dump Hardware Queue info to a buffer |
575 | * @phba: The HBA to gather host buffer info from. |
576 | * @buf: The buffer to dump log into. |
577 | * @size: The maximum amount of data to process. |
578 | * |
579 | * Description: |
580 | * This routine dumps the Hardware Queue info from the @phba to @buf up to |
581 | * @size number of bytes. A header that describes the current hdwq state will be |
582 | * dumped to @buf first and then info on each hdwq entry will be dumped to @buf |
583 | * until @size bytes have been dumped or all the hdwq info has been dumped. |
584 | * |
585 | * Notes: |
586 | * This routine will rotate through each configured Hardware Queue each |
587 | * time called. |
588 | * |
589 | * Return Value: |
590 | * This routine returns the amount of bytes that were dumped into @buf and will |
591 | * not exceed @size. |
592 | **/ |
593 | static int |
594 | lpfc_debugfs_lockstat_data(struct lpfc_hba *phba, char *buf, int size) |
595 | { |
596 | struct lpfc_sli4_hdw_queue *qp; |
597 | int len = 0; |
598 | int i; |
599 | |
600 | if (phba->sli_rev != LPFC_SLI_REV4) |
601 | return 0; |
602 | |
603 | if (!phba->sli4_hba.hdwq) |
604 | return 0; |
605 | |
606 | for (i = 0; i < phba->cfg_hdw_queue; i++) { |
607 | if (len > (LPFC_HDWQINFO_SIZE - 100)) |
608 | break; |
609 | qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_lock]; |
610 | |
611 | len += scnprintf(buf + len, size - len, "HdwQ %03d Lock " , i); |
612 | if (phba->cfg_xri_rebalancing) { |
613 | len += scnprintf(buf + len, size - len, |
614 | "get_pvt:%d mv_pvt:%d " |
615 | "mv2pub:%d mv2pvt:%d " |
616 | "put_pvt:%d put_pub:%d wq:%d\n" , |
617 | qp->lock_conflict.alloc_pvt_pool, |
618 | qp->lock_conflict.mv_from_pvt_pool, |
619 | qp->lock_conflict.mv_to_pub_pool, |
620 | qp->lock_conflict.mv_to_pvt_pool, |
621 | qp->lock_conflict.free_pvt_pool, |
622 | qp->lock_conflict.free_pub_pool, |
623 | qp->lock_conflict.wq_access); |
624 | } else { |
625 | len += scnprintf(buf + len, size - len, |
626 | "get:%d put:%d free:%d wq:%d\n" , |
627 | qp->lock_conflict.alloc_xri_get, |
628 | qp->lock_conflict.alloc_xri_put, |
629 | qp->lock_conflict.free_xri, |
630 | qp->lock_conflict.wq_access); |
631 | } |
632 | |
633 | lpfc_debugfs_last_lock++; |
634 | if (lpfc_debugfs_last_lock >= phba->cfg_hdw_queue) |
635 | lpfc_debugfs_last_lock = 0; |
636 | } |
637 | |
638 | return len; |
639 | } |
640 | #endif |
641 | |
642 | static int lpfc_debugfs_last_hba_slim_off; |
643 | |
644 | /** |
645 | * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer |
646 | * @phba: The HBA to gather SLIM info from. |
647 | * @buf: The buffer to dump log into. |
648 | * @size: The maximum amount of data to process. |
649 | * |
650 | * Description: |
651 | * This routine dumps the current contents of HBA SLIM for the HBA associated |
652 | * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. |
653 | * |
654 | * Notes: |
655 | * This routine will only dump up to 1024 bytes of data each time called and |
656 | * should be called multiple times to dump the entire HBA SLIM. |
657 | * |
658 | * Return Value: |
659 | * This routine returns the amount of bytes that were dumped into @buf and will |
660 | * not exceed @size. |
661 | **/ |
662 | static int |
663 | lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) |
664 | { |
665 | int len = 0; |
666 | int i, off; |
667 | uint32_t *ptr; |
668 | char *buffer; |
669 | |
670 | buffer = kmalloc(size: 1024, GFP_KERNEL); |
671 | if (!buffer) |
672 | return 0; |
673 | |
674 | off = 0; |
675 | spin_lock_irq(lock: &phba->hbalock); |
676 | |
677 | len += scnprintf(buf: buf+len, size: size-len, fmt: "HBA SLIM\n" ); |
678 | lpfc_memcpy_from_slim(dest: buffer, |
679 | src: phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, bytes: 1024); |
680 | |
681 | ptr = (uint32_t *)&buffer[0]; |
682 | off = lpfc_debugfs_last_hba_slim_off; |
683 | |
684 | /* Set it up for the next time */ |
685 | lpfc_debugfs_last_hba_slim_off += 1024; |
686 | if (lpfc_debugfs_last_hba_slim_off >= 4096) |
687 | lpfc_debugfs_last_hba_slim_off = 0; |
688 | |
689 | i = 1024; |
690 | while (i > 0) { |
691 | len += scnprintf(buf: buf+len, size: size-len, |
692 | fmt: "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n" , |
693 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), |
694 | *(ptr+5), *(ptr+6), *(ptr+7)); |
695 | ptr += 8; |
696 | i -= (8 * sizeof(uint32_t)); |
697 | off += (8 * sizeof(uint32_t)); |
698 | } |
699 | |
700 | spin_unlock_irq(lock: &phba->hbalock); |
701 | kfree(objp: buffer); |
702 | |
703 | return len; |
704 | } |
705 | |
706 | /** |
707 | * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer |
708 | * @phba: The HBA to gather Host SLIM info from. |
709 | * @buf: The buffer to dump log into. |
710 | * @size: The maximum amount of data to process. |
711 | * |
712 | * Description: |
713 | * This routine dumps the current contents of host SLIM for the host associated |
714 | * with @phba to @buf up to @size bytes of data. The dump will contain the |
715 | * Mailbox, PCB, Rings, and Registers that are located in host memory. |
716 | * |
717 | * Return Value: |
718 | * This routine returns the amount of bytes that were dumped into @buf and will |
719 | * not exceed @size. |
720 | **/ |
721 | static int |
722 | lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) |
723 | { |
724 | int len = 0; |
725 | int i, off; |
726 | uint32_t word0, word1, word2, word3; |
727 | uint32_t *ptr; |
728 | struct lpfc_pgp *pgpp; |
729 | struct lpfc_sli *psli = &phba->sli; |
730 | struct lpfc_sli_ring *pring; |
731 | |
732 | off = 0; |
733 | spin_lock_irq(lock: &phba->hbalock); |
734 | |
735 | len += scnprintf(buf: buf+len, size: size-len, fmt: "SLIM Mailbox\n" ); |
736 | ptr = (uint32_t *)phba->slim2p.virt; |
737 | i = sizeof(MAILBOX_t); |
738 | while (i > 0) { |
739 | len += scnprintf(buf: buf+len, size: size-len, |
740 | fmt: "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n" , |
741 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), |
742 | *(ptr+5), *(ptr+6), *(ptr+7)); |
743 | ptr += 8; |
744 | i -= (8 * sizeof(uint32_t)); |
745 | off += (8 * sizeof(uint32_t)); |
746 | } |
747 | |
748 | len += scnprintf(buf: buf+len, size: size-len, fmt: "SLIM PCB\n" ); |
749 | ptr = (uint32_t *)phba->pcb; |
750 | i = sizeof(PCB_t); |
751 | while (i > 0) { |
752 | len += scnprintf(buf: buf+len, size: size-len, |
753 | fmt: "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n" , |
754 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), |
755 | *(ptr+5), *(ptr+6), *(ptr+7)); |
756 | ptr += 8; |
757 | i -= (8 * sizeof(uint32_t)); |
758 | off += (8 * sizeof(uint32_t)); |
759 | } |
760 | |
761 | if (phba->sli_rev <= LPFC_SLI_REV3) { |
762 | for (i = 0; i < 4; i++) { |
763 | pgpp = &phba->port_gp[i]; |
764 | pring = &psli->sli3_ring[i]; |
765 | len += scnprintf(buf: buf+len, size: size-len, |
766 | fmt: "Ring %d: CMD GetInx:%d " |
767 | "(Max:%d Next:%d " |
768 | "Local:%d flg:x%x) " |
769 | "RSP PutInx:%d Max:%d\n" , |
770 | i, pgpp->cmdGetInx, |
771 | pring->sli.sli3.numCiocb, |
772 | pring->sli.sli3.next_cmdidx, |
773 | pring->sli.sli3.local_getidx, |
774 | pring->flag, pgpp->rspPutInx, |
775 | pring->sli.sli3.numRiocb); |
776 | } |
777 | |
778 | word0 = readl(addr: phba->HAregaddr); |
779 | word1 = readl(addr: phba->CAregaddr); |
780 | word2 = readl(addr: phba->HSregaddr); |
781 | word3 = readl(addr: phba->HCregaddr); |
782 | len += scnprintf(buf: buf+len, size: size-len, fmt: "HA:%08x CA:%08x HS:%08x " |
783 | "HC:%08x\n" , word0, word1, word2, word3); |
784 | } |
785 | spin_unlock_irq(lock: &phba->hbalock); |
786 | return len; |
787 | } |
788 | |
789 | /** |
790 | * lpfc_debugfs_nodelist_data - Dump target node list to a buffer |
791 | * @vport: The vport to gather target node info from. |
792 | * @buf: The buffer to dump log into. |
793 | * @size: The maximum amount of data to process. |
794 | * |
795 | * Description: |
796 | * This routine dumps the current target node list associated with @vport to |
797 | * @buf up to @size bytes of data. Each node entry in the dump will contain a |
798 | * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. |
799 | * |
800 | * Return Value: |
801 | * This routine returns the amount of bytes that were dumped into @buf and will |
802 | * not exceed @size. |
803 | **/ |
804 | static int |
805 | lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) |
806 | { |
807 | int len = 0; |
808 | int i, iocnt, outio, cnt; |
809 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
810 | struct lpfc_hba *phba = vport->phba; |
811 | struct lpfc_nodelist *ndlp; |
812 | unsigned char *statep; |
813 | struct nvme_fc_local_port *localport; |
814 | struct nvme_fc_remote_port *nrport = NULL; |
815 | struct lpfc_nvme_rport *rport; |
816 | |
817 | cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); |
818 | outio = 0; |
819 | |
820 | len += scnprintf(buf: buf+len, size: size-len, fmt: "\nFCP Nodelist Entries ...\n" ); |
821 | spin_lock_irq(lock: shost->host_lock); |
822 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
823 | iocnt = 0; |
824 | if (!cnt) { |
825 | len += scnprintf(buf: buf+len, size: size-len, |
826 | fmt: "Missing Nodelist Entries\n" ); |
827 | break; |
828 | } |
829 | cnt--; |
830 | switch (ndlp->nlp_state) { |
831 | case NLP_STE_UNUSED_NODE: |
832 | statep = "UNUSED" ; |
833 | break; |
834 | case NLP_STE_PLOGI_ISSUE: |
835 | statep = "PLOGI " ; |
836 | break; |
837 | case NLP_STE_ADISC_ISSUE: |
838 | statep = "ADISC " ; |
839 | break; |
840 | case NLP_STE_REG_LOGIN_ISSUE: |
841 | statep = "REGLOG" ; |
842 | break; |
843 | case NLP_STE_PRLI_ISSUE: |
844 | statep = "PRLI " ; |
845 | break; |
846 | case NLP_STE_LOGO_ISSUE: |
847 | statep = "LOGO " ; |
848 | break; |
849 | case NLP_STE_UNMAPPED_NODE: |
850 | statep = "UNMAP " ; |
851 | iocnt = 1; |
852 | break; |
853 | case NLP_STE_MAPPED_NODE: |
854 | statep = "MAPPED" ; |
855 | iocnt = 1; |
856 | break; |
857 | case NLP_STE_NPR_NODE: |
858 | statep = "NPR " ; |
859 | break; |
860 | default: |
861 | statep = "UNKNOWN" ; |
862 | } |
863 | len += scnprintf(buf: buf+len, size: size-len, fmt: "%s DID:x%06x " , |
864 | statep, ndlp->nlp_DID); |
865 | len += scnprintf(buf: buf+len, size: size-len, |
866 | fmt: "WWPN x%016llx " , |
867 | wwn_to_u64(wwn: ndlp->nlp_portname.u.wwn)); |
868 | len += scnprintf(buf: buf+len, size: size-len, |
869 | fmt: "WWNN x%016llx " , |
870 | wwn_to_u64(wwn: ndlp->nlp_nodename.u.wwn)); |
871 | len += scnprintf(buf: buf+len, size: size-len, fmt: "RPI:x%04x " , |
872 | ndlp->nlp_rpi); |
873 | len += scnprintf(buf: buf+len, size: size-len, fmt: "flag:x%08x " , |
874 | ndlp->nlp_flag); |
875 | if (!ndlp->nlp_type) |
876 | len += scnprintf(buf: buf+len, size: size-len, fmt: "UNKNOWN_TYPE " ); |
877 | if (ndlp->nlp_type & NLP_FC_NODE) |
878 | len += scnprintf(buf: buf+len, size: size-len, fmt: "FC_NODE " ); |
879 | if (ndlp->nlp_type & NLP_FABRIC) { |
880 | len += scnprintf(buf: buf+len, size: size-len, fmt: "FABRIC " ); |
881 | iocnt = 0; |
882 | } |
883 | if (ndlp->nlp_type & NLP_FCP_TARGET) |
884 | len += scnprintf(buf: buf+len, size: size-len, fmt: "FCP_TGT sid:%d " , |
885 | ndlp->nlp_sid); |
886 | if (ndlp->nlp_type & NLP_FCP_INITIATOR) |
887 | len += scnprintf(buf: buf+len, size: size-len, fmt: "FCP_INITIATOR " ); |
888 | if (ndlp->nlp_type & NLP_NVME_TARGET) |
889 | len += scnprintf(buf: buf + len, |
890 | size: size - len, fmt: "NVME_TGT sid:%d " , |
891 | NLP_NO_SID); |
892 | if (ndlp->nlp_type & NLP_NVME_INITIATOR) |
893 | len += scnprintf(buf: buf + len, |
894 | size: size - len, fmt: "NVME_INITIATOR " ); |
895 | len += scnprintf(buf: buf+len, size: size-len, fmt: "refcnt:%d" , |
896 | kref_read(kref: &ndlp->kref)); |
897 | if (iocnt) { |
898 | i = atomic_read(v: &ndlp->cmd_pending); |
899 | len += scnprintf(buf: buf + len, size: size - len, |
900 | fmt: " OutIO:x%x Qdepth x%x" , |
901 | i, ndlp->cmd_qdepth); |
902 | outio += i; |
903 | } |
904 | len += scnprintf(buf: buf+len, size: size-len, fmt: " xpt:x%x" , |
905 | ndlp->fc4_xpt_flags); |
906 | if (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING) |
907 | len += scnprintf(buf: buf+len, size: size-len, fmt: " defer:%x" , |
908 | ndlp->nlp_defer_did); |
909 | len += scnprintf(buf: buf+len, size: size-len, fmt: "\n" ); |
910 | } |
911 | spin_unlock_irq(lock: shost->host_lock); |
912 | |
913 | len += scnprintf(buf: buf + len, size: size - len, |
914 | fmt: "\nOutstanding IO x%x\n" , outio); |
915 | |
916 | if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) { |
917 | len += scnprintf(buf: buf + len, size: size - len, |
918 | fmt: "\nNVME Targetport Entry ...\n" ); |
919 | |
920 | /* Port state is only one of two values for now. */ |
921 | if (phba->targetport->port_id) |
922 | statep = "REGISTERED" ; |
923 | else |
924 | statep = "INIT" ; |
925 | len += scnprintf(buf: buf + len, size: size - len, |
926 | fmt: "TGT WWNN x%llx WWPN x%llx State %s\n" , |
927 | wwn_to_u64(wwn: vport->fc_nodename.u.wwn), |
928 | wwn_to_u64(wwn: vport->fc_portname.u.wwn), |
929 | statep); |
930 | len += scnprintf(buf: buf + len, size: size - len, |
931 | fmt: " Targetport DID x%06x\n" , |
932 | phba->targetport->port_id); |
933 | goto out_exit; |
934 | } |
935 | |
936 | len += scnprintf(buf: buf + len, size: size - len, |
937 | fmt: "\nNVME Lport/Rport Entries ...\n" ); |
938 | |
939 | localport = vport->localport; |
940 | if (!localport) |
941 | goto out_exit; |
942 | |
943 | spin_lock_irq(lock: shost->host_lock); |
944 | |
945 | /* Port state is only one of two values for now. */ |
946 | if (localport->port_id) |
947 | statep = "ONLINE" ; |
948 | else |
949 | statep = "UNKNOWN " ; |
950 | |
951 | len += scnprintf(buf: buf + len, size: size - len, |
952 | fmt: "Lport DID x%06x PortState %s\n" , |
953 | localport->port_id, statep); |
954 | |
955 | len += scnprintf(buf: buf + len, size: size - len, fmt: "\tRport List:\n" ); |
956 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
957 | /* local short-hand pointer. */ |
958 | spin_lock(lock: &ndlp->lock); |
959 | rport = lpfc_ndlp_get_nrport(ndlp); |
960 | if (rport) |
961 | nrport = rport->remoteport; |
962 | else |
963 | nrport = NULL; |
964 | spin_unlock(lock: &ndlp->lock); |
965 | if (!nrport) |
966 | continue; |
967 | |
968 | /* Port state is only one of two values for now. */ |
969 | switch (nrport->port_state) { |
970 | case FC_OBJSTATE_ONLINE: |
971 | statep = "ONLINE" ; |
972 | break; |
973 | case FC_OBJSTATE_UNKNOWN: |
974 | statep = "UNKNOWN " ; |
975 | break; |
976 | default: |
977 | statep = "UNSUPPORTED" ; |
978 | break; |
979 | } |
980 | |
981 | /* Tab in to show lport ownership. */ |
982 | len += scnprintf(buf: buf + len, size: size - len, |
983 | fmt: "\t%s Port ID:x%06x " , |
984 | statep, nrport->port_id); |
985 | len += scnprintf(buf: buf + len, size: size - len, fmt: "WWPN x%llx " , |
986 | nrport->port_name); |
987 | len += scnprintf(buf: buf + len, size: size - len, fmt: "WWNN x%llx " , |
988 | nrport->node_name); |
989 | |
990 | /* An NVME rport can have multiple roles. */ |
991 | if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) |
992 | len += scnprintf(buf: buf + len, size: size - len, |
993 | fmt: "INITIATOR " ); |
994 | if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) |
995 | len += scnprintf(buf: buf + len, size: size - len, |
996 | fmt: "TARGET " ); |
997 | if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) |
998 | len += scnprintf(buf: buf + len, size: size - len, |
999 | fmt: "DISCSRVC " ); |
1000 | if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | |
1001 | FC_PORT_ROLE_NVME_TARGET | |
1002 | FC_PORT_ROLE_NVME_DISCOVERY)) |
1003 | len += scnprintf(buf: buf + len, size: size - len, |
1004 | fmt: "UNKNOWN ROLE x%x" , |
1005 | nrport->port_role); |
1006 | /* Terminate the string. */ |
1007 | len += scnprintf(buf: buf + len, size: size - len, fmt: "\n" ); |
1008 | } |
1009 | |
1010 | spin_unlock_irq(lock: shost->host_lock); |
1011 | out_exit: |
1012 | return len; |
1013 | } |
1014 | |
1015 | /** |
1016 | * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer |
1017 | * @vport: The vport to gather target node info from. |
1018 | * @buf: The buffer to dump log into. |
1019 | * @size: The maximum amount of data to process. |
1020 | * |
1021 | * Description: |
1022 | * This routine dumps the NVME statistics associated with @vport |
1023 | * |
1024 | * Return Value: |
1025 | * This routine returns the amount of bytes that were dumped into @buf and will |
1026 | * not exceed @size. |
1027 | **/ |
1028 | static int |
1029 | lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) |
1030 | { |
1031 | struct lpfc_hba *phba = vport->phba; |
1032 | struct lpfc_nvmet_tgtport *tgtp; |
1033 | struct lpfc_async_xchg_ctx *ctxp, *next_ctxp; |
1034 | struct nvme_fc_local_port *localport; |
1035 | struct lpfc_fc4_ctrl_stat *cstat; |
1036 | struct lpfc_nvme_lport *lport; |
1037 | uint64_t data1, data2, data3; |
1038 | uint64_t tot, totin, totout; |
1039 | int cnt, i; |
1040 | int len = 0; |
1041 | |
1042 | if (phba->nvmet_support) { |
1043 | if (!phba->targetport) |
1044 | return len; |
1045 | tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; |
1046 | len += scnprintf(buf: buf + len, size: size - len, |
1047 | fmt: "\nNVME Targetport Statistics\n" ); |
1048 | |
1049 | len += scnprintf(buf: buf + len, size: size - len, |
1050 | fmt: "LS: Rcv %08x Drop %08x Abort %08x\n" , |
1051 | atomic_read(v: &tgtp->rcv_ls_req_in), |
1052 | atomic_read(v: &tgtp->rcv_ls_req_drop), |
1053 | atomic_read(v: &tgtp->xmt_ls_abort)); |
1054 | if (atomic_read(v: &tgtp->rcv_ls_req_in) != |
1055 | atomic_read(v: &tgtp->rcv_ls_req_out)) { |
1056 | len += scnprintf(buf: buf + len, size: size - len, |
1057 | fmt: "Rcv LS: in %08x != out %08x\n" , |
1058 | atomic_read(v: &tgtp->rcv_ls_req_in), |
1059 | atomic_read(v: &tgtp->rcv_ls_req_out)); |
1060 | } |
1061 | |
1062 | len += scnprintf(buf: buf + len, size: size - len, |
1063 | fmt: "LS: Xmt %08x Drop %08x Cmpl %08x\n" , |
1064 | atomic_read(v: &tgtp->xmt_ls_rsp), |
1065 | atomic_read(v: &tgtp->xmt_ls_drop), |
1066 | atomic_read(v: &tgtp->xmt_ls_rsp_cmpl)); |
1067 | |
1068 | len += scnprintf(buf: buf + len, size: size - len, |
1069 | fmt: "LS: RSP Abort %08x xb %08x Err %08x\n" , |
1070 | atomic_read(v: &tgtp->xmt_ls_rsp_aborted), |
1071 | atomic_read(v: &tgtp->xmt_ls_rsp_xb_set), |
1072 | atomic_read(v: &tgtp->xmt_ls_rsp_error)); |
1073 | |
1074 | len += scnprintf(buf: buf + len, size: size - len, |
1075 | fmt: "FCP: Rcv %08x Defer %08x Release %08x " |
1076 | "Drop %08x\n" , |
1077 | atomic_read(v: &tgtp->rcv_fcp_cmd_in), |
1078 | atomic_read(v: &tgtp->rcv_fcp_cmd_defer), |
1079 | atomic_read(v: &tgtp->xmt_fcp_release), |
1080 | atomic_read(v: &tgtp->rcv_fcp_cmd_drop)); |
1081 | |
1082 | if (atomic_read(v: &tgtp->rcv_fcp_cmd_in) != |
1083 | atomic_read(v: &tgtp->rcv_fcp_cmd_out)) { |
1084 | len += scnprintf(buf: buf + len, size: size - len, |
1085 | fmt: "Rcv FCP: in %08x != out %08x\n" , |
1086 | atomic_read(v: &tgtp->rcv_fcp_cmd_in), |
1087 | atomic_read(v: &tgtp->rcv_fcp_cmd_out)); |
1088 | } |
1089 | |
1090 | len += scnprintf(buf: buf + len, size: size - len, |
1091 | fmt: "FCP Rsp: read %08x readrsp %08x " |
1092 | "write %08x rsp %08x\n" , |
1093 | atomic_read(v: &tgtp->xmt_fcp_read), |
1094 | atomic_read(v: &tgtp->xmt_fcp_read_rsp), |
1095 | atomic_read(v: &tgtp->xmt_fcp_write), |
1096 | atomic_read(v: &tgtp->xmt_fcp_rsp)); |
1097 | |
1098 | len += scnprintf(buf: buf + len, size: size - len, |
1099 | fmt: "FCP Rsp Cmpl: %08x err %08x drop %08x\n" , |
1100 | atomic_read(v: &tgtp->xmt_fcp_rsp_cmpl), |
1101 | atomic_read(v: &tgtp->xmt_fcp_rsp_error), |
1102 | atomic_read(v: &tgtp->xmt_fcp_rsp_drop)); |
1103 | |
1104 | len += scnprintf(buf: buf + len, size: size - len, |
1105 | fmt: "FCP Rsp Abort: %08x xb %08x xricqe %08x\n" , |
1106 | atomic_read(v: &tgtp->xmt_fcp_rsp_aborted), |
1107 | atomic_read(v: &tgtp->xmt_fcp_rsp_xb_set), |
1108 | atomic_read(v: &tgtp->xmt_fcp_xri_abort_cqe)); |
1109 | |
1110 | len += scnprintf(buf: buf + len, size: size - len, |
1111 | fmt: "ABORT: Xmt %08x Cmpl %08x\n" , |
1112 | atomic_read(v: &tgtp->xmt_fcp_abort), |
1113 | atomic_read(v: &tgtp->xmt_fcp_abort_cmpl)); |
1114 | |
1115 | len += scnprintf(buf: buf + len, size: size - len, |
1116 | fmt: "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x" , |
1117 | atomic_read(v: &tgtp->xmt_abort_sol), |
1118 | atomic_read(v: &tgtp->xmt_abort_unsol), |
1119 | atomic_read(v: &tgtp->xmt_abort_rsp), |
1120 | atomic_read(v: &tgtp->xmt_abort_rsp_error)); |
1121 | |
1122 | len += scnprintf(buf: buf + len, size: size - len, fmt: "\n" ); |
1123 | |
1124 | cnt = 0; |
1125 | spin_lock(lock: &phba->sli4_hba.abts_nvmet_buf_list_lock); |
1126 | list_for_each_entry_safe(ctxp, next_ctxp, |
1127 | &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, |
1128 | list) { |
1129 | cnt++; |
1130 | } |
1131 | spin_unlock(lock: &phba->sli4_hba.abts_nvmet_buf_list_lock); |
1132 | if (cnt) { |
1133 | len += scnprintf(buf: buf + len, size: size - len, |
1134 | fmt: "ABORT: %d ctx entries\n" , cnt); |
1135 | spin_lock(lock: &phba->sli4_hba.abts_nvmet_buf_list_lock); |
1136 | list_for_each_entry_safe(ctxp, next_ctxp, |
1137 | &phba->sli4_hba.lpfc_abts_nvmet_ctx_list, |
1138 | list) { |
1139 | if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) |
1140 | break; |
1141 | len += scnprintf(buf: buf + len, size: size - len, |
1142 | fmt: "Entry: oxid %x state %x " |
1143 | "flag %x\n" , |
1144 | ctxp->oxid, ctxp->state, |
1145 | ctxp->flag); |
1146 | } |
1147 | spin_unlock(lock: &phba->sli4_hba.abts_nvmet_buf_list_lock); |
1148 | } |
1149 | |
1150 | /* Calculate outstanding IOs */ |
1151 | tot = atomic_read(v: &tgtp->rcv_fcp_cmd_drop); |
1152 | tot += atomic_read(v: &tgtp->xmt_fcp_release); |
1153 | tot = atomic_read(v: &tgtp->rcv_fcp_cmd_in) - tot; |
1154 | |
1155 | len += scnprintf(buf: buf + len, size: size - len, |
1156 | fmt: "IO_CTX: %08x WAIT: cur %08x tot %08x\n" |
1157 | "CTX Outstanding %08llx\n" , |
1158 | phba->sli4_hba.nvmet_xri_cnt, |
1159 | phba->sli4_hba.nvmet_io_wait_cnt, |
1160 | phba->sli4_hba.nvmet_io_wait_total, |
1161 | tot); |
1162 | } else { |
1163 | if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) |
1164 | return len; |
1165 | |
1166 | localport = vport->localport; |
1167 | if (!localport) |
1168 | return len; |
1169 | lport = (struct lpfc_nvme_lport *)localport->private; |
1170 | if (!lport) |
1171 | return len; |
1172 | |
1173 | len += scnprintf(buf: buf + len, size: size - len, |
1174 | fmt: "\nNVME HDWQ Statistics\n" ); |
1175 | |
1176 | len += scnprintf(buf: buf + len, size: size - len, |
1177 | fmt: "LS: Xmt %016x Cmpl %016x\n" , |
1178 | atomic_read(v: &lport->fc4NvmeLsRequests), |
1179 | atomic_read(v: &lport->fc4NvmeLsCmpls)); |
1180 | |
1181 | totin = 0; |
1182 | totout = 0; |
1183 | for (i = 0; i < phba->cfg_hdw_queue; i++) { |
1184 | cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; |
1185 | tot = cstat->io_cmpls; |
1186 | totin += tot; |
1187 | data1 = cstat->input_requests; |
1188 | data2 = cstat->output_requests; |
1189 | data3 = cstat->control_requests; |
1190 | totout += (data1 + data2 + data3); |
1191 | |
1192 | /* Limit to 32, debugfs display buffer limitation */ |
1193 | if (i >= 32) |
1194 | continue; |
1195 | |
1196 | len += scnprintf(buf: buf + len, PAGE_SIZE - len, |
1197 | fmt: "HDWQ (%d): Rd %016llx Wr %016llx " |
1198 | "IO %016llx " , |
1199 | i, data1, data2, data3); |
1200 | len += scnprintf(buf: buf + len, PAGE_SIZE - len, |
1201 | fmt: "Cmpl %016llx OutIO %016llx\n" , |
1202 | tot, ((data1 + data2 + data3) - tot)); |
1203 | } |
1204 | len += scnprintf(buf: buf + len, PAGE_SIZE - len, |
1205 | fmt: "Total FCP Cmpl %016llx Issue %016llx " |
1206 | "OutIO %016llx\n" , |
1207 | totin, totout, totout - totin); |
1208 | |
1209 | len += scnprintf(buf: buf + len, size: size - len, |
1210 | fmt: "LS Xmt Err: Abrt %08x Err %08x " |
1211 | "Cmpl Err: xb %08x Err %08x\n" , |
1212 | atomic_read(v: &lport->xmt_ls_abort), |
1213 | atomic_read(v: &lport->xmt_ls_err), |
1214 | atomic_read(v: &lport->cmpl_ls_xb), |
1215 | atomic_read(v: &lport->cmpl_ls_err)); |
1216 | |
1217 | len += scnprintf(buf: buf + len, size: size - len, |
1218 | fmt: "FCP Xmt Err: noxri %06x nondlp %06x " |
1219 | "qdepth %06x wqerr %06x err %06x Abrt %06x\n" , |
1220 | atomic_read(v: &lport->xmt_fcp_noxri), |
1221 | atomic_read(v: &lport->xmt_fcp_bad_ndlp), |
1222 | atomic_read(v: &lport->xmt_fcp_qdepth), |
1223 | atomic_read(v: &lport->xmt_fcp_wqerr), |
1224 | atomic_read(v: &lport->xmt_fcp_err), |
1225 | atomic_read(v: &lport->xmt_fcp_abort)); |
1226 | |
1227 | len += scnprintf(buf: buf + len, size: size - len, |
1228 | fmt: "FCP Cmpl Err: xb %08x Err %08x\n" , |
1229 | atomic_read(v: &lport->cmpl_fcp_xb), |
1230 | atomic_read(v: &lport->cmpl_fcp_err)); |
1231 | |
1232 | } |
1233 | |
1234 | return len; |
1235 | } |
1236 | |
1237 | /** |
1238 | * lpfc_debugfs_scsistat_data - Dump target node list to a buffer |
1239 | * @vport: The vport to gather target node info from. |
1240 | * @buf: The buffer to dump log into. |
1241 | * @size: The maximum amount of data to process. |
1242 | * |
1243 | * Description: |
1244 | * This routine dumps the SCSI statistics associated with @vport |
1245 | * |
1246 | * Return Value: |
1247 | * This routine returns the amount of bytes that were dumped into @buf and will |
1248 | * not exceed @size. |
1249 | **/ |
1250 | static int |
1251 | lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size) |
1252 | { |
1253 | int len; |
1254 | struct lpfc_hba *phba = vport->phba; |
1255 | struct lpfc_fc4_ctrl_stat *cstat; |
1256 | u64 data1, data2, data3; |
1257 | u64 tot, totin, totout; |
1258 | int i; |
1259 | char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; |
1260 | |
1261 | if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || |
1262 | (phba->sli_rev != LPFC_SLI_REV4)) |
1263 | return 0; |
1264 | |
1265 | scnprintf(buf, size, fmt: "SCSI HDWQ Statistics\n" ); |
1266 | |
1267 | totin = 0; |
1268 | totout = 0; |
1269 | for (i = 0; i < phba->cfg_hdw_queue; i++) { |
1270 | cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; |
1271 | tot = cstat->io_cmpls; |
1272 | totin += tot; |
1273 | data1 = cstat->input_requests; |
1274 | data2 = cstat->output_requests; |
1275 | data3 = cstat->control_requests; |
1276 | totout += (data1 + data2 + data3); |
1277 | |
1278 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "HDWQ (%d): Rd %016llx Wr %016llx " |
1279 | "IO %016llx " , i, data1, data2, data3); |
1280 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1281 | goto buffer_done; |
1282 | |
1283 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Cmpl %016llx OutIO %016llx\n" , |
1284 | tot, ((data1 + data2 + data3) - tot)); |
1285 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1286 | goto buffer_done; |
1287 | } |
1288 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "Total FCP Cmpl %016llx Issue %016llx " |
1289 | "OutIO %016llx\n" , totin, totout, totout - totin); |
1290 | strlcat(p: buf, q: tmp, avail: size); |
1291 | |
1292 | buffer_done: |
1293 | len = strnlen(p: buf, maxlen: size); |
1294 | |
1295 | return len; |
1296 | } |
1297 | |
1298 | void |
1299 | lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd) |
1300 | { |
1301 | uint64_t seg1, seg2, seg3, seg4; |
1302 | uint64_t segsum; |
1303 | |
1304 | if (!lpfc_cmd->ts_last_cmd || |
1305 | !lpfc_cmd->ts_cmd_start || |
1306 | !lpfc_cmd->ts_cmd_wqput || |
1307 | !lpfc_cmd->ts_isr_cmpl || |
1308 | !lpfc_cmd->ts_data_io) |
1309 | return; |
1310 | |
1311 | if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start) |
1312 | return; |
1313 | if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd) |
1314 | return; |
1315 | if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start) |
1316 | return; |
1317 | if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput) |
1318 | return; |
1319 | if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl) |
1320 | return; |
1321 | /* |
1322 | * Segment 1 - Time from Last FCP command cmpl is handed |
1323 | * off to NVME Layer to start of next command. |
1324 | * Segment 2 - Time from Driver receives a IO cmd start |
1325 | * from NVME Layer to WQ put is done on IO cmd. |
1326 | * Segment 3 - Time from Driver WQ put is done on IO cmd |
1327 | * to MSI-X ISR for IO cmpl. |
1328 | * Segment 4 - Time from MSI-X ISR for IO cmpl to when |
1329 | * cmpl is handled off to the NVME Layer. |
1330 | */ |
1331 | seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd; |
1332 | if (seg1 > 5000000) /* 5 ms - for sequential IOs only */ |
1333 | seg1 = 0; |
1334 | |
1335 | /* Calculate times relative to start of IO */ |
1336 | seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start); |
1337 | segsum = seg2; |
1338 | seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start; |
1339 | if (segsum > seg3) |
1340 | return; |
1341 | seg3 -= segsum; |
1342 | segsum += seg3; |
1343 | |
1344 | seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start; |
1345 | if (segsum > seg4) |
1346 | return; |
1347 | seg4 -= segsum; |
1348 | |
1349 | phba->ktime_data_samples++; |
1350 | phba->ktime_seg1_total += seg1; |
1351 | if (seg1 < phba->ktime_seg1_min) |
1352 | phba->ktime_seg1_min = seg1; |
1353 | else if (seg1 > phba->ktime_seg1_max) |
1354 | phba->ktime_seg1_max = seg1; |
1355 | phba->ktime_seg2_total += seg2; |
1356 | if (seg2 < phba->ktime_seg2_min) |
1357 | phba->ktime_seg2_min = seg2; |
1358 | else if (seg2 > phba->ktime_seg2_max) |
1359 | phba->ktime_seg2_max = seg2; |
1360 | phba->ktime_seg3_total += seg3; |
1361 | if (seg3 < phba->ktime_seg3_min) |
1362 | phba->ktime_seg3_min = seg3; |
1363 | else if (seg3 > phba->ktime_seg3_max) |
1364 | phba->ktime_seg3_max = seg3; |
1365 | phba->ktime_seg4_total += seg4; |
1366 | if (seg4 < phba->ktime_seg4_min) |
1367 | phba->ktime_seg4_min = seg4; |
1368 | else if (seg4 > phba->ktime_seg4_max) |
1369 | phba->ktime_seg4_max = seg4; |
1370 | |
1371 | lpfc_cmd->ts_last_cmd = 0; |
1372 | lpfc_cmd->ts_cmd_start = 0; |
1373 | lpfc_cmd->ts_cmd_wqput = 0; |
1374 | lpfc_cmd->ts_isr_cmpl = 0; |
1375 | lpfc_cmd->ts_data_io = 0; |
1376 | } |
1377 | |
1378 | /** |
1379 | * lpfc_debugfs_ioktime_data - Dump target node list to a buffer |
1380 | * @vport: The vport to gather target node info from. |
1381 | * @buf: The buffer to dump log into. |
1382 | * @size: The maximum amount of data to process. |
1383 | * |
1384 | * Description: |
1385 | * This routine dumps the NVME statistics associated with @vport |
1386 | * |
1387 | * Return Value: |
1388 | * This routine returns the amount of bytes that were dumped into @buf and will |
1389 | * not exceed @size. |
1390 | **/ |
1391 | static int |
1392 | lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size) |
1393 | { |
1394 | struct lpfc_hba *phba = vport->phba; |
1395 | int len = 0; |
1396 | |
1397 | if (phba->nvmet_support == 0) { |
1398 | /* Initiator */ |
1399 | len += scnprintf(buf: buf + len, PAGE_SIZE - len, |
1400 | fmt: "ktime %s: Total Samples: %lld\n" , |
1401 | (phba->ktime_on ? "Enabled" : "Disabled" ), |
1402 | phba->ktime_data_samples); |
1403 | if (phba->ktime_data_samples == 0) |
1404 | return len; |
1405 | |
1406 | len += scnprintf( |
1407 | buf: buf + len, PAGE_SIZE - len, |
1408 | fmt: "Segment 1: Last Cmd cmpl " |
1409 | "done -to- Start of next Cmd (in driver)\n" ); |
1410 | len += scnprintf( |
1411 | buf: buf + len, PAGE_SIZE - len, |
1412 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1413 | div_u64(dividend: phba->ktime_seg1_total, |
1414 | divisor: phba->ktime_data_samples), |
1415 | phba->ktime_seg1_min, |
1416 | phba->ktime_seg1_max); |
1417 | len += scnprintf( |
1418 | buf: buf + len, PAGE_SIZE - len, |
1419 | fmt: "Segment 2: Driver start of Cmd " |
1420 | "-to- Firmware WQ doorbell\n" ); |
1421 | len += scnprintf( |
1422 | buf: buf + len, PAGE_SIZE - len, |
1423 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1424 | div_u64(dividend: phba->ktime_seg2_total, |
1425 | divisor: phba->ktime_data_samples), |
1426 | phba->ktime_seg2_min, |
1427 | phba->ktime_seg2_max); |
1428 | len += scnprintf( |
1429 | buf: buf + len, PAGE_SIZE - len, |
1430 | fmt: "Segment 3: Firmware WQ doorbell -to- " |
1431 | "MSI-X ISR cmpl\n" ); |
1432 | len += scnprintf( |
1433 | buf: buf + len, PAGE_SIZE - len, |
1434 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1435 | div_u64(dividend: phba->ktime_seg3_total, |
1436 | divisor: phba->ktime_data_samples), |
1437 | phba->ktime_seg3_min, |
1438 | phba->ktime_seg3_max); |
1439 | len += scnprintf( |
1440 | buf: buf + len, PAGE_SIZE - len, |
1441 | fmt: "Segment 4: MSI-X ISR cmpl -to- " |
1442 | "Cmd cmpl done\n" ); |
1443 | len += scnprintf( |
1444 | buf: buf + len, PAGE_SIZE - len, |
1445 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1446 | div_u64(dividend: phba->ktime_seg4_total, |
1447 | divisor: phba->ktime_data_samples), |
1448 | phba->ktime_seg4_min, |
1449 | phba->ktime_seg4_max); |
1450 | len += scnprintf( |
1451 | buf: buf + len, PAGE_SIZE - len, |
1452 | fmt: "Total IO avg time: %08lld\n" , |
1453 | div_u64(dividend: phba->ktime_seg1_total + |
1454 | phba->ktime_seg2_total + |
1455 | phba->ktime_seg3_total + |
1456 | phba->ktime_seg4_total, |
1457 | divisor: phba->ktime_data_samples)); |
1458 | return len; |
1459 | } |
1460 | |
1461 | /* NVME Target */ |
1462 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1463 | fmt: "ktime %s: Total Samples: %lld %lld\n" , |
1464 | (phba->ktime_on ? "Enabled" : "Disabled" ), |
1465 | phba->ktime_data_samples, |
1466 | phba->ktime_status_samples); |
1467 | if (phba->ktime_data_samples == 0) |
1468 | return len; |
1469 | |
1470 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1471 | fmt: "Segment 1: MSI-X ISR Rcv cmd -to- " |
1472 | "cmd pass to NVME Layer\n" ); |
1473 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1474 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1475 | div_u64(dividend: phba->ktime_seg1_total, |
1476 | divisor: phba->ktime_data_samples), |
1477 | phba->ktime_seg1_min, |
1478 | phba->ktime_seg1_max); |
1479 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1480 | fmt: "Segment 2: cmd pass to NVME Layer- " |
1481 | "-to- Driver rcv cmd OP (action)\n" ); |
1482 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1483 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1484 | div_u64(dividend: phba->ktime_seg2_total, |
1485 | divisor: phba->ktime_data_samples), |
1486 | phba->ktime_seg2_min, |
1487 | phba->ktime_seg2_max); |
1488 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1489 | fmt: "Segment 3: Driver rcv cmd OP -to- " |
1490 | "Firmware WQ doorbell: cmd\n" ); |
1491 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1492 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1493 | div_u64(dividend: phba->ktime_seg3_total, |
1494 | divisor: phba->ktime_data_samples), |
1495 | phba->ktime_seg3_min, |
1496 | phba->ktime_seg3_max); |
1497 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1498 | fmt: "Segment 4: Firmware WQ doorbell: cmd " |
1499 | "-to- MSI-X ISR for cmd cmpl\n" ); |
1500 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1501 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1502 | div_u64(dividend: phba->ktime_seg4_total, |
1503 | divisor: phba->ktime_data_samples), |
1504 | phba->ktime_seg4_min, |
1505 | phba->ktime_seg4_max); |
1506 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1507 | fmt: "Segment 5: MSI-X ISR for cmd cmpl " |
1508 | "-to- NVME layer passed cmd done\n" ); |
1509 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1510 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1511 | div_u64(dividend: phba->ktime_seg5_total, |
1512 | divisor: phba->ktime_data_samples), |
1513 | phba->ktime_seg5_min, |
1514 | phba->ktime_seg5_max); |
1515 | |
1516 | if (phba->ktime_status_samples == 0) { |
1517 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1518 | fmt: "Total: cmd received by MSI-X ISR " |
1519 | "-to- cmd completed on wire\n" ); |
1520 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1521 | fmt: "avg:%08lld min:%08lld " |
1522 | "max %08lld\n" , |
1523 | div_u64(dividend: phba->ktime_seg10_total, |
1524 | divisor: phba->ktime_data_samples), |
1525 | phba->ktime_seg10_min, |
1526 | phba->ktime_seg10_max); |
1527 | return len; |
1528 | } |
1529 | |
1530 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1531 | fmt: "Segment 6: NVME layer passed cmd done " |
1532 | "-to- Driver rcv rsp status OP\n" ); |
1533 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1534 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1535 | div_u64(dividend: phba->ktime_seg6_total, |
1536 | divisor: phba->ktime_status_samples), |
1537 | phba->ktime_seg6_min, |
1538 | phba->ktime_seg6_max); |
1539 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1540 | fmt: "Segment 7: Driver rcv rsp status OP " |
1541 | "-to- Firmware WQ doorbell: status\n" ); |
1542 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1543 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1544 | div_u64(dividend: phba->ktime_seg7_total, |
1545 | divisor: phba->ktime_status_samples), |
1546 | phba->ktime_seg7_min, |
1547 | phba->ktime_seg7_max); |
1548 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1549 | fmt: "Segment 8: Firmware WQ doorbell: status" |
1550 | " -to- MSI-X ISR for status cmpl\n" ); |
1551 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1552 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1553 | div_u64(dividend: phba->ktime_seg8_total, |
1554 | divisor: phba->ktime_status_samples), |
1555 | phba->ktime_seg8_min, |
1556 | phba->ktime_seg8_max); |
1557 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1558 | fmt: "Segment 9: MSI-X ISR for status cmpl " |
1559 | "-to- NVME layer passed status done\n" ); |
1560 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1561 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1562 | div_u64(dividend: phba->ktime_seg9_total, |
1563 | divisor: phba->ktime_status_samples), |
1564 | phba->ktime_seg9_min, |
1565 | phba->ktime_seg9_max); |
1566 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1567 | fmt: "Total: cmd received by MSI-X ISR -to- " |
1568 | "cmd completed on wire\n" ); |
1569 | len += scnprintf(buf: buf + len, PAGE_SIZE-len, |
1570 | fmt: "avg:%08lld min:%08lld max %08lld\n" , |
1571 | div_u64(dividend: phba->ktime_seg10_total, |
1572 | divisor: phba->ktime_status_samples), |
1573 | phba->ktime_seg10_min, |
1574 | phba->ktime_seg10_max); |
1575 | return len; |
1576 | } |
1577 | |
1578 | /** |
1579 | * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer |
1580 | * @phba: The phba to gather target node info from. |
1581 | * @buf: The buffer to dump log into. |
1582 | * @size: The maximum amount of data to process. |
1583 | * |
1584 | * Description: |
1585 | * This routine dumps the NVME IO trace associated with @phba |
1586 | * |
1587 | * Return Value: |
1588 | * This routine returns the amount of bytes that were dumped into @buf and will |
1589 | * not exceed @size. |
1590 | **/ |
1591 | static int |
1592 | lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) |
1593 | { |
1594 | struct lpfc_debugfs_nvmeio_trc *dtp; |
1595 | int i, state, index, skip; |
1596 | int len = 0; |
1597 | |
1598 | state = phba->nvmeio_trc_on; |
1599 | |
1600 | index = (atomic_read(v: &phba->nvmeio_trc_cnt) + 1) & |
1601 | (phba->nvmeio_trc_size - 1); |
1602 | skip = phba->nvmeio_trc_output_idx; |
1603 | |
1604 | len += scnprintf(buf: buf + len, size: size - len, |
1605 | fmt: "%s IO Trace %s: next_idx %d skip %d size %d\n" , |
1606 | (phba->nvmet_support ? "NVME" : "NVMET" ), |
1607 | (state ? "Enabled" : "Disabled" ), |
1608 | index, skip, phba->nvmeio_trc_size); |
1609 | |
1610 | if (!phba->nvmeio_trc || state) |
1611 | return len; |
1612 | |
1613 | /* trace MUST bhe off to continue */ |
1614 | |
1615 | for (i = index; i < phba->nvmeio_trc_size; i++) { |
1616 | if (skip) { |
1617 | skip--; |
1618 | continue; |
1619 | } |
1620 | dtp = phba->nvmeio_trc + i; |
1621 | phba->nvmeio_trc_output_idx++; |
1622 | |
1623 | if (!dtp->fmt) |
1624 | continue; |
1625 | |
1626 | len += scnprintf(buf: buf + len, size: size - len, fmt: dtp->fmt, |
1627 | dtp->data1, dtp->data2, dtp->data3); |
1628 | |
1629 | if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { |
1630 | phba->nvmeio_trc_output_idx = 0; |
1631 | len += scnprintf(buf: buf + len, size: size - len, |
1632 | fmt: "Trace Complete\n" ); |
1633 | goto out; |
1634 | } |
1635 | |
1636 | if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { |
1637 | len += scnprintf(buf: buf + len, size: size - len, |
1638 | fmt: "Trace Continue (%d of %d)\n" , |
1639 | phba->nvmeio_trc_output_idx, |
1640 | phba->nvmeio_trc_size); |
1641 | goto out; |
1642 | } |
1643 | } |
1644 | for (i = 0; i < index; i++) { |
1645 | if (skip) { |
1646 | skip--; |
1647 | continue; |
1648 | } |
1649 | dtp = phba->nvmeio_trc + i; |
1650 | phba->nvmeio_trc_output_idx++; |
1651 | |
1652 | if (!dtp->fmt) |
1653 | continue; |
1654 | |
1655 | len += scnprintf(buf: buf + len, size: size - len, fmt: dtp->fmt, |
1656 | dtp->data1, dtp->data2, dtp->data3); |
1657 | |
1658 | if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { |
1659 | phba->nvmeio_trc_output_idx = 0; |
1660 | len += scnprintf(buf: buf + len, size: size - len, |
1661 | fmt: "Trace Complete\n" ); |
1662 | goto out; |
1663 | } |
1664 | |
1665 | if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { |
1666 | len += scnprintf(buf: buf + len, size: size - len, |
1667 | fmt: "Trace Continue (%d of %d)\n" , |
1668 | phba->nvmeio_trc_output_idx, |
1669 | phba->nvmeio_trc_size); |
1670 | goto out; |
1671 | } |
1672 | } |
1673 | |
1674 | len += scnprintf(buf: buf + len, size: size - len, |
1675 | fmt: "Trace Done\n" ); |
1676 | out: |
1677 | return len; |
1678 | } |
1679 | |
1680 | /** |
1681 | * lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer |
1682 | * @vport: The vport to gather target node info from. |
1683 | * @buf: The buffer to dump log into. |
1684 | * @size: The maximum amount of data to process. |
1685 | * |
1686 | * Description: |
1687 | * This routine dumps the NVME + SCSI statistics associated with @vport |
1688 | * |
1689 | * Return Value: |
1690 | * This routine returns the amount of bytes that were dumped into @buf and will |
1691 | * not exceed @size. |
1692 | **/ |
1693 | static int |
1694 | lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size) |
1695 | { |
1696 | struct lpfc_hba *phba = vport->phba; |
1697 | struct lpfc_hdwq_stat *c_stat; |
1698 | int i, j, len; |
1699 | uint32_t tot_xmt; |
1700 | uint32_t tot_rcv; |
1701 | uint32_t tot_cmpl; |
1702 | char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; |
1703 | |
1704 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "HDWQ Stats:\n\n" ); |
1705 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1706 | goto buffer_done; |
1707 | |
1708 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "(NVME Accounting: %s) " , |
1709 | (phba->hdwqstat_on & |
1710 | (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ? |
1711 | "Enabled" : "Disabled" )); |
1712 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1713 | goto buffer_done; |
1714 | |
1715 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "(SCSI Accounting: %s) " , |
1716 | (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ? |
1717 | "Enabled" : "Disabled" )); |
1718 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1719 | goto buffer_done; |
1720 | |
1721 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "\n\n" ); |
1722 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1723 | goto buffer_done; |
1724 | |
1725 | for (i = 0; i < phba->cfg_hdw_queue; i++) { |
1726 | tot_rcv = 0; |
1727 | tot_xmt = 0; |
1728 | tot_cmpl = 0; |
1729 | |
1730 | for_each_present_cpu(j) { |
1731 | c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j); |
1732 | |
1733 | /* Only display for this HDWQ */ |
1734 | if (i != c_stat->hdwq_no) |
1735 | continue; |
1736 | |
1737 | /* Only display non-zero counters */ |
1738 | if (!c_stat->xmt_io && !c_stat->cmpl_io && |
1739 | !c_stat->rcv_io) |
1740 | continue; |
1741 | |
1742 | if (!tot_xmt && !tot_cmpl && !tot_rcv) { |
1743 | /* Print HDWQ string only the first time */ |
1744 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "[HDWQ %d]:\t" , i); |
1745 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1746 | goto buffer_done; |
1747 | } |
1748 | |
1749 | tot_xmt += c_stat->xmt_io; |
1750 | tot_cmpl += c_stat->cmpl_io; |
1751 | if (phba->nvmet_support) |
1752 | tot_rcv += c_stat->rcv_io; |
1753 | |
1754 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "| [CPU %d]: " , j); |
1755 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1756 | goto buffer_done; |
1757 | |
1758 | if (phba->nvmet_support) { |
1759 | scnprintf(buf: tmp, size: sizeof(tmp), |
1760 | fmt: "XMT 0x%x CMPL 0x%x RCV 0x%x |" , |
1761 | c_stat->xmt_io, c_stat->cmpl_io, |
1762 | c_stat->rcv_io); |
1763 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1764 | goto buffer_done; |
1765 | } else { |
1766 | scnprintf(buf: tmp, size: sizeof(tmp), |
1767 | fmt: "XMT 0x%x CMPL 0x%x |" , |
1768 | c_stat->xmt_io, c_stat->cmpl_io); |
1769 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1770 | goto buffer_done; |
1771 | } |
1772 | } |
1773 | |
1774 | /* Check if nothing to display */ |
1775 | if (!tot_xmt && !tot_cmpl && !tot_rcv) |
1776 | continue; |
1777 | |
1778 | scnprintf(buf: tmp, size: sizeof(tmp), fmt: "\t->\t[HDWQ Total: " ); |
1779 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1780 | goto buffer_done; |
1781 | |
1782 | if (phba->nvmet_support) { |
1783 | scnprintf(buf: tmp, size: sizeof(tmp), |
1784 | fmt: "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n" , |
1785 | tot_xmt, tot_cmpl, tot_rcv); |
1786 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1787 | goto buffer_done; |
1788 | } else { |
1789 | scnprintf(buf: tmp, size: sizeof(tmp), |
1790 | fmt: "XMT 0x%x CMPL 0x%x]\n\n" , |
1791 | tot_xmt, tot_cmpl); |
1792 | if (strlcat(p: buf, q: tmp, avail: size) >= size) |
1793 | goto buffer_done; |
1794 | } |
1795 | } |
1796 | |
1797 | buffer_done: |
1798 | len = strnlen(p: buf, maxlen: size); |
1799 | return len; |
1800 | } |
1801 | |
1802 | #endif |
1803 | |
1804 | /** |
1805 | * lpfc_debugfs_disc_trc - Store discovery trace log |
1806 | * @vport: The vport to associate this trace string with for retrieval. |
1807 | * @mask: Log entry classification. |
1808 | * @fmt: Format string to be displayed when dumping the log. |
1809 | * @data1: 1st data parameter to be applied to @fmt. |
1810 | * @data2: 2nd data parameter to be applied to @fmt. |
1811 | * @data3: 3rd data parameter to be applied to @fmt. |
1812 | * |
1813 | * Description: |
1814 | * This routine is used by the driver code to add a debugfs log entry to the |
1815 | * discovery trace buffer associated with @vport. Only entries with a @mask that |
1816 | * match the current debugfs discovery mask will be saved. Entries that do not |
1817 | * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like |
1818 | * printf when displaying the log. |
1819 | **/ |
1820 | inline void |
1821 | lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, |
1822 | uint32_t data1, uint32_t data2, uint32_t data3) |
1823 | { |
1824 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
1825 | struct lpfc_debugfs_trc *dtp; |
1826 | int index; |
1827 | |
1828 | if (!(lpfc_debugfs_mask_disc_trc & mask)) |
1829 | return; |
1830 | |
1831 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || |
1832 | !vport || !vport->disc_trc) |
1833 | return; |
1834 | |
1835 | index = atomic_inc_return(v: &vport->disc_trc_cnt) & |
1836 | (lpfc_debugfs_max_disc_trc - 1); |
1837 | dtp = vport->disc_trc + index; |
1838 | dtp->fmt = fmt; |
1839 | dtp->data1 = data1; |
1840 | dtp->data2 = data2; |
1841 | dtp->data3 = data3; |
1842 | dtp->seq_cnt = atomic_inc_return(v: &lpfc_debugfs_seq_trc_cnt); |
1843 | dtp->jif = jiffies; |
1844 | #endif |
1845 | return; |
1846 | } |
1847 | |
1848 | /** |
1849 | * lpfc_debugfs_slow_ring_trc - Store slow ring trace log |
1850 | * @phba: The phba to associate this trace string with for retrieval. |
1851 | * @fmt: Format string to be displayed when dumping the log. |
1852 | * @data1: 1st data parameter to be applied to @fmt. |
1853 | * @data2: 2nd data parameter to be applied to @fmt. |
1854 | * @data3: 3rd data parameter to be applied to @fmt. |
1855 | * |
1856 | * Description: |
1857 | * This routine is used by the driver code to add a debugfs log entry to the |
1858 | * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and |
1859 | * @data3 are used like printf when displaying the log. |
1860 | **/ |
1861 | inline void |
1862 | lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, |
1863 | uint32_t data1, uint32_t data2, uint32_t data3) |
1864 | { |
1865 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
1866 | struct lpfc_debugfs_trc *dtp; |
1867 | int index; |
1868 | |
1869 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || |
1870 | !phba || !phba->slow_ring_trc) |
1871 | return; |
1872 | |
1873 | index = atomic_inc_return(v: &phba->slow_ring_trc_cnt) & |
1874 | (lpfc_debugfs_max_slow_ring_trc - 1); |
1875 | dtp = phba->slow_ring_trc + index; |
1876 | dtp->fmt = fmt; |
1877 | dtp->data1 = data1; |
1878 | dtp->data2 = data2; |
1879 | dtp->data3 = data3; |
1880 | dtp->seq_cnt = atomic_inc_return(v: &lpfc_debugfs_seq_trc_cnt); |
1881 | dtp->jif = jiffies; |
1882 | #endif |
1883 | return; |
1884 | } |
1885 | |
1886 | /** |
1887 | * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log |
1888 | * @phba: The phba to associate this trace string with for retrieval. |
1889 | * @fmt: Format string to be displayed when dumping the log. |
1890 | * @data1: 1st data parameter to be applied to @fmt. |
1891 | * @data2: 2nd data parameter to be applied to @fmt. |
1892 | * @data3: 3rd data parameter to be applied to @fmt. |
1893 | * |
1894 | * Description: |
1895 | * This routine is used by the driver code to add a debugfs log entry to the |
1896 | * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and |
1897 | * @data3 are used like printf when displaying the log. |
1898 | **/ |
1899 | inline void |
1900 | lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, |
1901 | uint16_t data1, uint16_t data2, uint32_t data3) |
1902 | { |
1903 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
1904 | struct lpfc_debugfs_nvmeio_trc *dtp; |
1905 | int index; |
1906 | |
1907 | if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) |
1908 | return; |
1909 | |
1910 | index = atomic_inc_return(v: &phba->nvmeio_trc_cnt) & |
1911 | (phba->nvmeio_trc_size - 1); |
1912 | dtp = phba->nvmeio_trc + index; |
1913 | dtp->fmt = fmt; |
1914 | dtp->data1 = data1; |
1915 | dtp->data2 = data2; |
1916 | dtp->data3 = data3; |
1917 | #endif |
1918 | } |
1919 | |
1920 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
1921 | /** |
1922 | * lpfc_debugfs_disc_trc_open - Open the discovery trace log |
1923 | * @inode: The inode pointer that contains a vport pointer. |
1924 | * @file: The file pointer to attach the log output. |
1925 | * |
1926 | * Description: |
1927 | * This routine is the entry point for the debugfs open file operation. It gets |
1928 | * the vport from the i_private field in @inode, allocates the necessary buffer |
1929 | * for the log, fills the buffer from the in-memory log for this vport, and then |
1930 | * returns a pointer to that log in the private_data field in @file. |
1931 | * |
1932 | * Returns: |
1933 | * This function returns zero if successful. On error it will return a negative |
1934 | * error value. |
1935 | **/ |
1936 | static int |
1937 | lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) |
1938 | { |
1939 | struct lpfc_vport *vport = inode->i_private; |
1940 | struct lpfc_debug *debug; |
1941 | int size; |
1942 | int rc = -ENOMEM; |
1943 | |
1944 | if (!lpfc_debugfs_max_disc_trc) { |
1945 | rc = -ENOSPC; |
1946 | goto out; |
1947 | } |
1948 | |
1949 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
1950 | if (!debug) |
1951 | goto out; |
1952 | |
1953 | /* Round to page boundary */ |
1954 | size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
1955 | size = PAGE_ALIGN(size); |
1956 | |
1957 | debug->buffer = kmalloc(size, GFP_KERNEL); |
1958 | if (!debug->buffer) { |
1959 | kfree(objp: debug); |
1960 | goto out; |
1961 | } |
1962 | |
1963 | debug->len = lpfc_debugfs_disc_trc_data(vport, buf: debug->buffer, size); |
1964 | file->private_data = debug; |
1965 | |
1966 | rc = 0; |
1967 | out: |
1968 | return rc; |
1969 | } |
1970 | |
1971 | /** |
1972 | * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log |
1973 | * @inode: The inode pointer that contains a vport pointer. |
1974 | * @file: The file pointer to attach the log output. |
1975 | * |
1976 | * Description: |
1977 | * This routine is the entry point for the debugfs open file operation. It gets |
1978 | * the vport from the i_private field in @inode, allocates the necessary buffer |
1979 | * for the log, fills the buffer from the in-memory log for this vport, and then |
1980 | * returns a pointer to that log in the private_data field in @file. |
1981 | * |
1982 | * Returns: |
1983 | * This function returns zero if successful. On error it will return a negative |
1984 | * error value. |
1985 | **/ |
1986 | static int |
1987 | lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) |
1988 | { |
1989 | struct lpfc_hba *phba = inode->i_private; |
1990 | struct lpfc_debug *debug; |
1991 | int size; |
1992 | int rc = -ENOMEM; |
1993 | |
1994 | if (!lpfc_debugfs_max_slow_ring_trc) { |
1995 | rc = -ENOSPC; |
1996 | goto out; |
1997 | } |
1998 | |
1999 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
2000 | if (!debug) |
2001 | goto out; |
2002 | |
2003 | /* Round to page boundary */ |
2004 | size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
2005 | size = PAGE_ALIGN(size); |
2006 | |
2007 | debug->buffer = kmalloc(size, GFP_KERNEL); |
2008 | if (!debug->buffer) { |
2009 | kfree(objp: debug); |
2010 | goto out; |
2011 | } |
2012 | |
2013 | debug->len = lpfc_debugfs_slow_ring_trc_data(phba, buf: debug->buffer, size); |
2014 | file->private_data = debug; |
2015 | |
2016 | rc = 0; |
2017 | out: |
2018 | return rc; |
2019 | } |
2020 | |
2021 | /** |
2022 | * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer |
2023 | * @inode: The inode pointer that contains a vport pointer. |
2024 | * @file: The file pointer to attach the log output. |
2025 | * |
2026 | * Description: |
2027 | * This routine is the entry point for the debugfs open file operation. It gets |
2028 | * the vport from the i_private field in @inode, allocates the necessary buffer |
2029 | * for the log, fills the buffer from the in-memory log for this vport, and then |
2030 | * returns a pointer to that log in the private_data field in @file. |
2031 | * |
2032 | * Returns: |
2033 | * This function returns zero if successful. On error it will return a negative |
2034 | * error value. |
2035 | **/ |
2036 | static int |
2037 | lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) |
2038 | { |
2039 | struct lpfc_hba *phba = inode->i_private; |
2040 | struct lpfc_debug *debug; |
2041 | int rc = -ENOMEM; |
2042 | |
2043 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
2044 | if (!debug) |
2045 | goto out; |
2046 | |
2047 | /* Round to page boundary */ |
2048 | debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); |
2049 | if (!debug->buffer) { |
2050 | kfree(objp: debug); |
2051 | goto out; |
2052 | } |
2053 | |
2054 | debug->len = lpfc_debugfs_hbqinfo_data(phba, buf: debug->buffer, |
2055 | LPFC_HBQINFO_SIZE); |
2056 | file->private_data = debug; |
2057 | |
2058 | rc = 0; |
2059 | out: |
2060 | return rc; |
2061 | } |
2062 | |
2063 | /** |
2064 | * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer |
2065 | * @inode: The inode pointer that contains a hba pointer. |
2066 | * @file: The file pointer to attach the log output. |
2067 | * |
2068 | * Description: |
2069 | * This routine is the entry point for the debugfs open file operation. It gets |
2070 | * the hba from the i_private field in @inode, allocates the necessary buffer |
2071 | * for the log, fills the buffer from the in-memory log for this hba, and then |
2072 | * returns a pointer to that log in the private_data field in @file. |
2073 | * |
2074 | * Returns: |
2075 | * This function returns zero if successful. On error it will return a negative |
2076 | * error value. |
2077 | **/ |
2078 | static int |
2079 | lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file) |
2080 | { |
2081 | struct lpfc_hba *phba = inode->i_private; |
2082 | struct lpfc_debug *debug; |
2083 | int rc = -ENOMEM; |
2084 | |
2085 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
2086 | if (!debug) |
2087 | goto out; |
2088 | |
2089 | /* Round to page boundary */ |
2090 | debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL); |
2091 | if (!debug->buffer) { |
2092 | kfree(objp: debug); |
2093 | goto out; |
2094 | } |
2095 | |
2096 | debug->len = lpfc_debugfs_multixripools_data( |
2097 | phba, buf: debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE); |
2098 | |
2099 | debug->i_private = inode->i_private; |
2100 | file->private_data = debug; |
2101 | |
2102 | rc = 0; |
2103 | out: |
2104 | return rc; |
2105 | } |
2106 | |
2107 | #ifdef LPFC_HDWQ_LOCK_STAT |
2108 | /** |
2109 | * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer |
2110 | * @inode: The inode pointer that contains a vport pointer. |
2111 | * @file: The file pointer to attach the log output. |
2112 | * |
2113 | * Description: |
2114 | * This routine is the entry point for the debugfs open file operation. It gets |
2115 | * the vport from the i_private field in @inode, allocates the necessary buffer |
2116 | * for the log, fills the buffer from the in-memory log for this vport, and then |
2117 | * returns a pointer to that log in the private_data field in @file. |
2118 | * |
2119 | * Returns: |
2120 | * This function returns zero if successful. On error it will return a negative |
2121 | * error value. |
2122 | **/ |
2123 | static int |
2124 | lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file) |
2125 | { |
2126 | struct lpfc_hba *phba = inode->i_private; |
2127 | struct lpfc_debug *debug; |
2128 | int rc = -ENOMEM; |
2129 | |
2130 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); |
2131 | if (!debug) |
2132 | goto out; |
2133 | |
2134 | /* Round to page boundary */ |
2135 | debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL); |
2136 | if (!debug->buffer) { |
2137 | kfree(debug); |
2138 | goto out; |
2139 | } |
2140 | |
2141 | debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer, |
2142 | LPFC_HBQINFO_SIZE); |
2143 | file->private_data = debug; |
2144 | |
2145 | rc = 0; |
2146 | out: |
2147 | return rc; |
2148 | } |
2149 | |
2150 | static ssize_t |
2151 | lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf, |
2152 | size_t nbytes, loff_t *ppos) |
2153 | { |
2154 | struct lpfc_debug *debug = file->private_data; |
2155 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
2156 | struct lpfc_sli4_hdw_queue *qp; |
2157 | char mybuf[64]; |
2158 | char *pbuf; |
2159 | int i; |
2160 | size_t bsize; |
2161 | |
2162 | memset(mybuf, 0, sizeof(mybuf)); |
2163 | |
2164 | bsize = min(nbytes, (sizeof(mybuf) - 1)); |
2165 | |
2166 | if (copy_from_user(mybuf, buf, bsize)) |
2167 | return -EFAULT; |
2168 | pbuf = &mybuf[0]; |
2169 | |
2170 | if ((strncmp(pbuf, "reset" , strlen("reset" )) == 0) || |
2171 | (strncmp(pbuf, "zero" , strlen("zero" )) == 0)) { |
2172 | for (i = 0; i < phba->cfg_hdw_queue; i++) { |
2173 | qp = &phba->sli4_hba.hdwq[i]; |
2174 | qp->lock_conflict.alloc_xri_get = 0; |
2175 | qp->lock_conflict.alloc_xri_put = 0; |
2176 | qp->lock_conflict.free_xri = 0; |
2177 | qp->lock_conflict.wq_access = 0; |
2178 | qp->lock_conflict.alloc_pvt_pool = 0; |
2179 | qp->lock_conflict.mv_from_pvt_pool = 0; |
2180 | qp->lock_conflict.mv_to_pub_pool = 0; |
2181 | qp->lock_conflict.mv_to_pvt_pool = 0; |
2182 | qp->lock_conflict.free_pvt_pool = 0; |
2183 | qp->lock_conflict.free_pub_pool = 0; |
2184 | qp->lock_conflict.wq_access = 0; |
2185 | } |
2186 | } |
2187 | return bsize; |
2188 | } |
2189 | #endif |
2190 | |
2191 | static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba, |
2192 | char *buffer, int size) |
2193 | { |
2194 | int copied = 0; |
2195 | struct lpfc_dmabuf *dmabuf, *next; |
2196 | |
2197 | memset(buffer, 0, size); |
2198 | |
2199 | spin_lock_irq(lock: &phba->hbalock); |
2200 | if (phba->ras_fwlog.state != ACTIVE) { |
2201 | spin_unlock_irq(lock: &phba->hbalock); |
2202 | return -EINVAL; |
2203 | } |
2204 | spin_unlock_irq(lock: &phba->hbalock); |
2205 | |
2206 | list_for_each_entry_safe(dmabuf, next, |
2207 | &phba->ras_fwlog.fwlog_buff_list, list) { |
2208 | /* Check if copying will go over size and a '\0' char */ |
2209 | if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) { |
2210 | memcpy(buffer + copied, dmabuf->virt, |
2211 | size - copied - 1); |
2212 | copied += size - copied - 1; |
2213 | break; |
2214 | } |
2215 | memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE); |
2216 | copied += LPFC_RAS_MAX_ENTRY_SIZE; |
2217 | } |
2218 | return copied; |
2219 | } |
2220 | |
2221 | static int |
2222 | lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file) |
2223 | { |
2224 | struct lpfc_debug *debug = file->private_data; |
2225 | |
2226 | vfree(addr: debug->buffer); |
2227 | kfree(objp: debug); |
2228 | |
2229 | return 0; |
2230 | } |
2231 | |
2232 | /** |
2233 | * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer |
2234 | * @inode: The inode pointer that contains a vport pointer. |
2235 | * @file: The file pointer to attach the log output. |
2236 | * |
2237 | * Description: |
2238 | * This routine is the entry point for the debugfs open file operation. It gets |
2239 | * the vport from the i_private field in @inode, allocates the necessary buffer |
2240 | * for the log, fills the buffer from the in-memory log for this vport, and then |
2241 | * returns a pointer to that log in the private_data field in @file. |
2242 | * |
2243 | * Returns: |
2244 | * This function returns zero if successful. On error it will return a negative |
2245 | * error value. |
2246 | **/ |
2247 | static int |
2248 | lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) |
2249 | { |
2250 | struct lpfc_hba *phba = inode->i_private; |
2251 | struct lpfc_debug *debug; |
2252 | int size; |
2253 | int rc = -ENOMEM; |
2254 | |
2255 | spin_lock_irq(lock: &phba->hbalock); |
2256 | if (phba->ras_fwlog.state != ACTIVE) { |
2257 | spin_unlock_irq(lock: &phba->hbalock); |
2258 | rc = -EINVAL; |
2259 | goto out; |
2260 | } |
2261 | spin_unlock_irq(lock: &phba->hbalock); |
2262 | |
2263 | if (check_mul_overflow(LPFC_RAS_MIN_BUFF_POST_SIZE, |
2264 | phba->cfg_ras_fwlog_buffsize, &size)) |
2265 | goto out; |
2266 | |
2267 | debug = kzalloc(size: sizeof(*debug), GFP_KERNEL); |
2268 | if (!debug) |
2269 | goto out; |
2270 | |
2271 | debug->buffer = vmalloc(size); |
2272 | if (!debug->buffer) |
2273 | goto free_debug; |
2274 | |
2275 | debug->len = lpfc_debugfs_ras_log_data(phba, buffer: debug->buffer, size); |
2276 | if (debug->len < 0) { |
2277 | rc = -EINVAL; |
2278 | goto free_buffer; |
2279 | } |
2280 | file->private_data = debug; |
2281 | |
2282 | return 0; |
2283 | |
2284 | free_buffer: |
2285 | vfree(addr: debug->buffer); |
2286 | free_debug: |
2287 | kfree(objp: debug); |
2288 | out: |
2289 | return rc; |
2290 | } |
2291 | |
2292 | /** |
2293 | * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer |
2294 | * @inode: The inode pointer that contains a vport pointer. |
2295 | * @file: The file pointer to attach the log output. |
2296 | * |
2297 | * Description: |
2298 | * This routine is the entry point for the debugfs open file operation. It gets |
2299 | * the vport from the i_private field in @inode, allocates the necessary buffer |
2300 | * for the log, fills the buffer from the in-memory log for this vport, and then |
2301 | * returns a pointer to that log in the private_data field in @file. |
2302 | * |
2303 | * Returns: |
2304 | * This function returns zero if successful. On error it will return a negative |
2305 | * error value. |
2306 | **/ |
2307 | static int |
2308 | lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) |
2309 | { |
2310 | struct lpfc_hba *phba = inode->i_private; |
2311 | struct lpfc_debug *debug; |
2312 | int rc = -ENOMEM; |
2313 | |
2314 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
2315 | if (!debug) |
2316 | goto out; |
2317 | |
2318 | /* Round to page boundary */ |
2319 | debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); |
2320 | if (!debug->buffer) { |
2321 | kfree(objp: debug); |
2322 | goto out; |
2323 | } |
2324 | |
2325 | debug->len = lpfc_debugfs_dumpHBASlim_data(phba, buf: debug->buffer, |
2326 | LPFC_DUMPHBASLIM_SIZE); |
2327 | file->private_data = debug; |
2328 | |
2329 | rc = 0; |
2330 | out: |
2331 | return rc; |
2332 | } |
2333 | |
2334 | /** |
2335 | * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer |
2336 | * @inode: The inode pointer that contains a vport pointer. |
2337 | * @file: The file pointer to attach the log output. |
2338 | * |
2339 | * Description: |
2340 | * This routine is the entry point for the debugfs open file operation. It gets |
2341 | * the vport from the i_private field in @inode, allocates the necessary buffer |
2342 | * for the log, fills the buffer from the in-memory log for this vport, and then |
2343 | * returns a pointer to that log in the private_data field in @file. |
2344 | * |
2345 | * Returns: |
2346 | * This function returns zero if successful. On error it will return a negative |
2347 | * error value. |
2348 | **/ |
2349 | static int |
2350 | lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) |
2351 | { |
2352 | struct lpfc_hba *phba = inode->i_private; |
2353 | struct lpfc_debug *debug; |
2354 | int rc = -ENOMEM; |
2355 | |
2356 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
2357 | if (!debug) |
2358 | goto out; |
2359 | |
2360 | /* Round to page boundary */ |
2361 | debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); |
2362 | if (!debug->buffer) { |
2363 | kfree(objp: debug); |
2364 | goto out; |
2365 | } |
2366 | |
2367 | debug->len = lpfc_debugfs_dumpHostSlim_data(phba, buf: debug->buffer, |
2368 | LPFC_DUMPHOSTSLIM_SIZE); |
2369 | file->private_data = debug; |
2370 | |
2371 | rc = 0; |
2372 | out: |
2373 | return rc; |
2374 | } |
2375 | |
2376 | static ssize_t |
2377 | lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, |
2378 | size_t nbytes, loff_t *ppos) |
2379 | { |
2380 | struct dentry *dent = file->f_path.dentry; |
2381 | struct lpfc_hba *phba = file->private_data; |
2382 | char cbuf[32]; |
2383 | uint64_t tmp = 0; |
2384 | int cnt = 0; |
2385 | |
2386 | if (dent == phba->debug_writeGuard) |
2387 | cnt = scnprintf(buf: cbuf, size: 32, fmt: "%u\n" , phba->lpfc_injerr_wgrd_cnt); |
2388 | else if (dent == phba->debug_writeApp) |
2389 | cnt = scnprintf(buf: cbuf, size: 32, fmt: "%u\n" , phba->lpfc_injerr_wapp_cnt); |
2390 | else if (dent == phba->debug_writeRef) |
2391 | cnt = scnprintf(buf: cbuf, size: 32, fmt: "%u\n" , phba->lpfc_injerr_wref_cnt); |
2392 | else if (dent == phba->debug_readGuard) |
2393 | cnt = scnprintf(buf: cbuf, size: 32, fmt: "%u\n" , phba->lpfc_injerr_rgrd_cnt); |
2394 | else if (dent == phba->debug_readApp) |
2395 | cnt = scnprintf(buf: cbuf, size: 32, fmt: "%u\n" , phba->lpfc_injerr_rapp_cnt); |
2396 | else if (dent == phba->debug_readRef) |
2397 | cnt = scnprintf(buf: cbuf, size: 32, fmt: "%u\n" , phba->lpfc_injerr_rref_cnt); |
2398 | else if (dent == phba->debug_InjErrNPortID) |
2399 | cnt = scnprintf(buf: cbuf, size: 32, fmt: "0x%06x\n" , |
2400 | phba->lpfc_injerr_nportid); |
2401 | else if (dent == phba->debug_InjErrWWPN) { |
2402 | memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); |
2403 | tmp = cpu_to_be64(tmp); |
2404 | cnt = scnprintf(buf: cbuf, size: 32, fmt: "0x%016llx\n" , tmp); |
2405 | } else if (dent == phba->debug_InjErrLBA) { |
2406 | if (phba->lpfc_injerr_lba == (sector_t)(-1)) |
2407 | cnt = scnprintf(buf: cbuf, size: 32, fmt: "off\n" ); |
2408 | else |
2409 | cnt = scnprintf(buf: cbuf, size: 32, fmt: "0x%llx\n" , |
2410 | (uint64_t) phba->lpfc_injerr_lba); |
2411 | } else |
2412 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
2413 | "0547 Unknown debugfs error injection entry\n" ); |
2414 | |
2415 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: &cbuf, available: cnt); |
2416 | } |
2417 | |
2418 | static ssize_t |
2419 | lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, |
2420 | size_t nbytes, loff_t *ppos) |
2421 | { |
2422 | struct dentry *dent = file->f_path.dentry; |
2423 | struct lpfc_hba *phba = file->private_data; |
2424 | char dstbuf[33]; |
2425 | uint64_t tmp = 0; |
2426 | int size; |
2427 | |
2428 | memset(dstbuf, 0, 33); |
2429 | size = (nbytes < 32) ? nbytes : 32; |
2430 | if (copy_from_user(to: dstbuf, from: buf, n: size)) |
2431 | return -EFAULT; |
2432 | |
2433 | if (dent == phba->debug_InjErrLBA) { |
2434 | if ((dstbuf[0] == 'o') && (dstbuf[1] == 'f') && |
2435 | (dstbuf[2] == 'f')) |
2436 | tmp = (uint64_t)(-1); |
2437 | } |
2438 | |
2439 | if ((tmp == 0) && (kstrtoull(s: dstbuf, base: 0, res: &tmp))) |
2440 | return -EINVAL; |
2441 | |
2442 | if (dent == phba->debug_writeGuard) |
2443 | phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; |
2444 | else if (dent == phba->debug_writeApp) |
2445 | phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; |
2446 | else if (dent == phba->debug_writeRef) |
2447 | phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; |
2448 | else if (dent == phba->debug_readGuard) |
2449 | phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; |
2450 | else if (dent == phba->debug_readApp) |
2451 | phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; |
2452 | else if (dent == phba->debug_readRef) |
2453 | phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; |
2454 | else if (dent == phba->debug_InjErrLBA) |
2455 | phba->lpfc_injerr_lba = (sector_t)tmp; |
2456 | else if (dent == phba->debug_InjErrNPortID) |
2457 | phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); |
2458 | else if (dent == phba->debug_InjErrWWPN) { |
2459 | tmp = cpu_to_be64(tmp); |
2460 | memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); |
2461 | } else |
2462 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
2463 | "0548 Unknown debugfs error injection entry\n" ); |
2464 | |
2465 | return nbytes; |
2466 | } |
2467 | |
2468 | static int |
2469 | lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) |
2470 | { |
2471 | return 0; |
2472 | } |
2473 | |
2474 | /** |
2475 | * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file |
2476 | * @inode: The inode pointer that contains a vport pointer. |
2477 | * @file: The file pointer to attach the log output. |
2478 | * |
2479 | * Description: |
2480 | * This routine is the entry point for the debugfs open file operation. It gets |
2481 | * the vport from the i_private field in @inode, allocates the necessary buffer |
2482 | * for the log, fills the buffer from the in-memory log for this vport, and then |
2483 | * returns a pointer to that log in the private_data field in @file. |
2484 | * |
2485 | * Returns: |
2486 | * This function returns zero if successful. On error it will return a negative |
2487 | * error value. |
2488 | **/ |
2489 | static int |
2490 | lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) |
2491 | { |
2492 | struct lpfc_vport *vport = inode->i_private; |
2493 | struct lpfc_debug *debug; |
2494 | int rc = -ENOMEM; |
2495 | |
2496 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
2497 | if (!debug) |
2498 | goto out; |
2499 | |
2500 | /* Round to page boundary */ |
2501 | debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); |
2502 | if (!debug->buffer) { |
2503 | kfree(objp: debug); |
2504 | goto out; |
2505 | } |
2506 | |
2507 | debug->len = lpfc_debugfs_nodelist_data(vport, buf: debug->buffer, |
2508 | LPFC_NODELIST_SIZE); |
2509 | file->private_data = debug; |
2510 | |
2511 | rc = 0; |
2512 | out: |
2513 | return rc; |
2514 | } |
2515 | |
2516 | /** |
2517 | * lpfc_debugfs_lseek - Seek through a debugfs file |
2518 | * @file: The file pointer to seek through. |
2519 | * @off: The offset to seek to or the amount to seek by. |
2520 | * @whence: Indicates how to seek. |
2521 | * |
2522 | * Description: |
2523 | * This routine is the entry point for the debugfs lseek file operation. The |
2524 | * @whence parameter indicates whether @off is the offset to directly seek to, |
2525 | * or if it is a value to seek forward or reverse by. This function figures out |
2526 | * what the new offset of the debugfs file will be and assigns that value to the |
2527 | * f_pos field of @file. |
2528 | * |
2529 | * Returns: |
2530 | * This function returns the new offset if successful and returns a negative |
2531 | * error if unable to process the seek. |
2532 | **/ |
2533 | static loff_t |
2534 | lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) |
2535 | { |
2536 | struct lpfc_debug *debug = file->private_data; |
2537 | return fixed_size_llseek(file, offset: off, whence, size: debug->len); |
2538 | } |
2539 | |
2540 | /** |
2541 | * lpfc_debugfs_read - Read a debugfs file |
2542 | * @file: The file pointer to read from. |
2543 | * @buf: The buffer to copy the data to. |
2544 | * @nbytes: The number of bytes to read. |
2545 | * @ppos: The position in the file to start reading from. |
2546 | * |
2547 | * Description: |
2548 | * This routine reads data from from the buffer indicated in the private_data |
2549 | * field of @file. It will start reading at @ppos and copy up to @nbytes of |
2550 | * data to @buf. |
2551 | * |
2552 | * Returns: |
2553 | * This function returns the amount of data that was read (this could be less |
2554 | * than @nbytes if the end of the file was reached) or a negative error value. |
2555 | **/ |
2556 | static ssize_t |
2557 | lpfc_debugfs_read(struct file *file, char __user *buf, |
2558 | size_t nbytes, loff_t *ppos) |
2559 | { |
2560 | struct lpfc_debug *debug = file->private_data; |
2561 | |
2562 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: debug->buffer, |
2563 | available: debug->len); |
2564 | } |
2565 | |
2566 | /** |
2567 | * lpfc_debugfs_release - Release the buffer used to store debugfs file data |
2568 | * @inode: The inode pointer that contains a vport pointer. (unused) |
2569 | * @file: The file pointer that contains the buffer to release. |
2570 | * |
2571 | * Description: |
2572 | * This routine frees the buffer that was allocated when the debugfs file was |
2573 | * opened. |
2574 | * |
2575 | * Returns: |
2576 | * This function returns zero. |
2577 | **/ |
2578 | static int |
2579 | lpfc_debugfs_release(struct inode *inode, struct file *file) |
2580 | { |
2581 | struct lpfc_debug *debug = file->private_data; |
2582 | |
2583 | kfree(objp: debug->buffer); |
2584 | kfree(objp: debug); |
2585 | |
2586 | return 0; |
2587 | } |
2588 | |
2589 | /** |
2590 | * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics |
2591 | * @file: The file pointer to read from. |
2592 | * @buf: The buffer to copy the user data from. |
2593 | * @nbytes: The number of bytes to get. |
2594 | * @ppos: The position in the file to start reading from. |
2595 | * |
2596 | * Description: |
2597 | * This routine clears multi-XRI pools statistics when buf contains "clear". |
2598 | * |
2599 | * Return Value: |
2600 | * It returns the @nbytges passing in from debugfs user space when successful. |
2601 | * In case of error conditions, it returns proper error code back to the user |
2602 | * space. |
2603 | **/ |
2604 | static ssize_t |
2605 | lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf, |
2606 | size_t nbytes, loff_t *ppos) |
2607 | { |
2608 | struct lpfc_debug *debug = file->private_data; |
2609 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
2610 | char mybuf[64]; |
2611 | char *pbuf; |
2612 | u32 i; |
2613 | u32 hwq_count; |
2614 | struct lpfc_sli4_hdw_queue *qp; |
2615 | struct lpfc_multixri_pool *multixri_pool; |
2616 | |
2617 | if (nbytes > sizeof(mybuf) - 1) |
2618 | nbytes = sizeof(mybuf) - 1; |
2619 | |
2620 | memset(mybuf, 0, sizeof(mybuf)); |
2621 | |
2622 | if (copy_from_user(to: mybuf, from: buf, n: nbytes)) |
2623 | return -EFAULT; |
2624 | pbuf = &mybuf[0]; |
2625 | |
2626 | if ((strncmp(pbuf, "clear" , strlen("clear" ))) == 0) { |
2627 | hwq_count = phba->cfg_hdw_queue; |
2628 | for (i = 0; i < hwq_count; i++) { |
2629 | qp = &phba->sli4_hba.hdwq[i]; |
2630 | multixri_pool = qp->p_multixri_pool; |
2631 | if (!multixri_pool) |
2632 | continue; |
2633 | |
2634 | qp->empty_io_bufs = 0; |
2635 | multixri_pool->pbl_empty_count = 0; |
2636 | #ifdef LPFC_MXP_STAT |
2637 | multixri_pool->above_limit_count = 0; |
2638 | multixri_pool->below_limit_count = 0; |
2639 | multixri_pool->stat_max_hwm = 0; |
2640 | multixri_pool->local_pbl_hit_count = 0; |
2641 | multixri_pool->other_pbl_hit_count = 0; |
2642 | |
2643 | multixri_pool->stat_pbl_count = 0; |
2644 | multixri_pool->stat_pvt_count = 0; |
2645 | multixri_pool->stat_busy_count = 0; |
2646 | multixri_pool->stat_snapshot_taken = 0; |
2647 | #endif |
2648 | } |
2649 | return strlen(pbuf); |
2650 | } |
2651 | |
2652 | return -EINVAL; |
2653 | } |
2654 | |
2655 | static int |
2656 | lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) |
2657 | { |
2658 | struct lpfc_vport *vport = inode->i_private; |
2659 | struct lpfc_debug *debug; |
2660 | int rc = -ENOMEM; |
2661 | |
2662 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
2663 | if (!debug) |
2664 | goto out; |
2665 | |
2666 | /* Round to page boundary */ |
2667 | debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); |
2668 | if (!debug->buffer) { |
2669 | kfree(objp: debug); |
2670 | goto out; |
2671 | } |
2672 | |
2673 | debug->len = lpfc_debugfs_nvmestat_data(vport, buf: debug->buffer, |
2674 | LPFC_NVMESTAT_SIZE); |
2675 | |
2676 | debug->i_private = inode->i_private; |
2677 | file->private_data = debug; |
2678 | |
2679 | rc = 0; |
2680 | out: |
2681 | return rc; |
2682 | } |
2683 | |
2684 | static ssize_t |
2685 | lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf, |
2686 | size_t nbytes, loff_t *ppos) |
2687 | { |
2688 | struct lpfc_debug *debug = file->private_data; |
2689 | struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; |
2690 | struct lpfc_hba *phba = vport->phba; |
2691 | struct lpfc_nvmet_tgtport *tgtp; |
2692 | char mybuf[64]; |
2693 | char *pbuf; |
2694 | |
2695 | if (!phba->targetport) |
2696 | return -ENXIO; |
2697 | |
2698 | if (nbytes > sizeof(mybuf) - 1) |
2699 | nbytes = sizeof(mybuf) - 1; |
2700 | |
2701 | memset(mybuf, 0, sizeof(mybuf)); |
2702 | |
2703 | if (copy_from_user(to: mybuf, from: buf, n: nbytes)) |
2704 | return -EFAULT; |
2705 | pbuf = &mybuf[0]; |
2706 | |
2707 | tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; |
2708 | if ((strncmp(pbuf, "reset" , strlen("reset" )) == 0) || |
2709 | (strncmp(pbuf, "zero" , strlen("zero" )) == 0)) { |
2710 | atomic_set(v: &tgtp->rcv_ls_req_in, i: 0); |
2711 | atomic_set(v: &tgtp->rcv_ls_req_out, i: 0); |
2712 | atomic_set(v: &tgtp->rcv_ls_req_drop, i: 0); |
2713 | atomic_set(v: &tgtp->xmt_ls_abort, i: 0); |
2714 | atomic_set(v: &tgtp->xmt_ls_abort_cmpl, i: 0); |
2715 | atomic_set(v: &tgtp->xmt_ls_rsp, i: 0); |
2716 | atomic_set(v: &tgtp->xmt_ls_drop, i: 0); |
2717 | atomic_set(v: &tgtp->xmt_ls_rsp_error, i: 0); |
2718 | atomic_set(v: &tgtp->xmt_ls_rsp_cmpl, i: 0); |
2719 | |
2720 | atomic_set(v: &tgtp->rcv_fcp_cmd_in, i: 0); |
2721 | atomic_set(v: &tgtp->rcv_fcp_cmd_out, i: 0); |
2722 | atomic_set(v: &tgtp->rcv_fcp_cmd_drop, i: 0); |
2723 | atomic_set(v: &tgtp->xmt_fcp_drop, i: 0); |
2724 | atomic_set(v: &tgtp->xmt_fcp_read_rsp, i: 0); |
2725 | atomic_set(v: &tgtp->xmt_fcp_read, i: 0); |
2726 | atomic_set(v: &tgtp->xmt_fcp_write, i: 0); |
2727 | atomic_set(v: &tgtp->xmt_fcp_rsp, i: 0); |
2728 | atomic_set(v: &tgtp->xmt_fcp_release, i: 0); |
2729 | atomic_set(v: &tgtp->xmt_fcp_rsp_cmpl, i: 0); |
2730 | atomic_set(v: &tgtp->xmt_fcp_rsp_error, i: 0); |
2731 | atomic_set(v: &tgtp->xmt_fcp_rsp_drop, i: 0); |
2732 | |
2733 | atomic_set(v: &tgtp->xmt_fcp_abort, i: 0); |
2734 | atomic_set(v: &tgtp->xmt_fcp_abort_cmpl, i: 0); |
2735 | atomic_set(v: &tgtp->xmt_abort_sol, i: 0); |
2736 | atomic_set(v: &tgtp->xmt_abort_unsol, i: 0); |
2737 | atomic_set(v: &tgtp->xmt_abort_rsp, i: 0); |
2738 | atomic_set(v: &tgtp->xmt_abort_rsp_error, i: 0); |
2739 | } |
2740 | return nbytes; |
2741 | } |
2742 | |
2743 | static int |
2744 | lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file) |
2745 | { |
2746 | struct lpfc_vport *vport = inode->i_private; |
2747 | struct lpfc_debug *debug; |
2748 | int rc = -ENOMEM; |
2749 | |
2750 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
2751 | if (!debug) |
2752 | goto out; |
2753 | |
2754 | /* Round to page boundary */ |
2755 | debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL); |
2756 | if (!debug->buffer) { |
2757 | kfree(objp: debug); |
2758 | goto out; |
2759 | } |
2760 | |
2761 | debug->len = lpfc_debugfs_scsistat_data(vport, buf: debug->buffer, |
2762 | LPFC_SCSISTAT_SIZE); |
2763 | |
2764 | debug->i_private = inode->i_private; |
2765 | file->private_data = debug; |
2766 | |
2767 | rc = 0; |
2768 | out: |
2769 | return rc; |
2770 | } |
2771 | |
2772 | static ssize_t |
2773 | lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf, |
2774 | size_t nbytes, loff_t *ppos) |
2775 | { |
2776 | struct lpfc_debug *debug = file->private_data; |
2777 | struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; |
2778 | struct lpfc_hba *phba = vport->phba; |
2779 | char mybuf[6] = {0}; |
2780 | int i; |
2781 | |
2782 | if (copy_from_user(to: mybuf, from: buf, n: (nbytes >= sizeof(mybuf)) ? |
2783 | (sizeof(mybuf) - 1) : nbytes)) |
2784 | return -EFAULT; |
2785 | |
2786 | if ((strncmp(&mybuf[0], "reset" , strlen("reset" )) == 0) || |
2787 | (strncmp(&mybuf[0], "zero" , strlen("zero" )) == 0)) { |
2788 | for (i = 0; i < phba->cfg_hdw_queue; i++) { |
2789 | memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0, |
2790 | sizeof(phba->sli4_hba.hdwq[i].scsi_cstat)); |
2791 | } |
2792 | } |
2793 | |
2794 | return nbytes; |
2795 | } |
2796 | |
2797 | static int |
2798 | lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file) |
2799 | { |
2800 | struct lpfc_vport *vport = inode->i_private; |
2801 | struct lpfc_debug *debug; |
2802 | int rc = -ENOMEM; |
2803 | |
2804 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
2805 | if (!debug) |
2806 | goto out; |
2807 | |
2808 | /* Round to page boundary */ |
2809 | debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL); |
2810 | if (!debug->buffer) { |
2811 | kfree(objp: debug); |
2812 | goto out; |
2813 | } |
2814 | |
2815 | debug->len = lpfc_debugfs_ioktime_data(vport, buf: debug->buffer, |
2816 | LPFC_IOKTIME_SIZE); |
2817 | |
2818 | debug->i_private = inode->i_private; |
2819 | file->private_data = debug; |
2820 | |
2821 | rc = 0; |
2822 | out: |
2823 | return rc; |
2824 | } |
2825 | |
2826 | static ssize_t |
2827 | lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf, |
2828 | size_t nbytes, loff_t *ppos) |
2829 | { |
2830 | struct lpfc_debug *debug = file->private_data; |
2831 | struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; |
2832 | struct lpfc_hba *phba = vport->phba; |
2833 | char mybuf[64]; |
2834 | char *pbuf; |
2835 | |
2836 | if (nbytes > sizeof(mybuf) - 1) |
2837 | nbytes = sizeof(mybuf) - 1; |
2838 | |
2839 | memset(mybuf, 0, sizeof(mybuf)); |
2840 | |
2841 | if (copy_from_user(to: mybuf, from: buf, n: nbytes)) |
2842 | return -EFAULT; |
2843 | pbuf = &mybuf[0]; |
2844 | |
2845 | if ((strncmp(pbuf, "on" , sizeof("on" ) - 1) == 0)) { |
2846 | phba->ktime_data_samples = 0; |
2847 | phba->ktime_status_samples = 0; |
2848 | phba->ktime_seg1_total = 0; |
2849 | phba->ktime_seg1_max = 0; |
2850 | phba->ktime_seg1_min = 0xffffffff; |
2851 | phba->ktime_seg2_total = 0; |
2852 | phba->ktime_seg2_max = 0; |
2853 | phba->ktime_seg2_min = 0xffffffff; |
2854 | phba->ktime_seg3_total = 0; |
2855 | phba->ktime_seg3_max = 0; |
2856 | phba->ktime_seg3_min = 0xffffffff; |
2857 | phba->ktime_seg4_total = 0; |
2858 | phba->ktime_seg4_max = 0; |
2859 | phba->ktime_seg4_min = 0xffffffff; |
2860 | phba->ktime_seg5_total = 0; |
2861 | phba->ktime_seg5_max = 0; |
2862 | phba->ktime_seg5_min = 0xffffffff; |
2863 | phba->ktime_seg6_total = 0; |
2864 | phba->ktime_seg6_max = 0; |
2865 | phba->ktime_seg6_min = 0xffffffff; |
2866 | phba->ktime_seg7_total = 0; |
2867 | phba->ktime_seg7_max = 0; |
2868 | phba->ktime_seg7_min = 0xffffffff; |
2869 | phba->ktime_seg8_total = 0; |
2870 | phba->ktime_seg8_max = 0; |
2871 | phba->ktime_seg8_min = 0xffffffff; |
2872 | phba->ktime_seg9_total = 0; |
2873 | phba->ktime_seg9_max = 0; |
2874 | phba->ktime_seg9_min = 0xffffffff; |
2875 | phba->ktime_seg10_total = 0; |
2876 | phba->ktime_seg10_max = 0; |
2877 | phba->ktime_seg10_min = 0xffffffff; |
2878 | |
2879 | phba->ktime_on = 1; |
2880 | return strlen(pbuf); |
2881 | } else if ((strncmp(pbuf, "off" , |
2882 | sizeof("off" ) - 1) == 0)) { |
2883 | phba->ktime_on = 0; |
2884 | return strlen(pbuf); |
2885 | } else if ((strncmp(pbuf, "zero" , |
2886 | sizeof("zero" ) - 1) == 0)) { |
2887 | phba->ktime_data_samples = 0; |
2888 | phba->ktime_status_samples = 0; |
2889 | phba->ktime_seg1_total = 0; |
2890 | phba->ktime_seg1_max = 0; |
2891 | phba->ktime_seg1_min = 0xffffffff; |
2892 | phba->ktime_seg2_total = 0; |
2893 | phba->ktime_seg2_max = 0; |
2894 | phba->ktime_seg2_min = 0xffffffff; |
2895 | phba->ktime_seg3_total = 0; |
2896 | phba->ktime_seg3_max = 0; |
2897 | phba->ktime_seg3_min = 0xffffffff; |
2898 | phba->ktime_seg4_total = 0; |
2899 | phba->ktime_seg4_max = 0; |
2900 | phba->ktime_seg4_min = 0xffffffff; |
2901 | phba->ktime_seg5_total = 0; |
2902 | phba->ktime_seg5_max = 0; |
2903 | phba->ktime_seg5_min = 0xffffffff; |
2904 | phba->ktime_seg6_total = 0; |
2905 | phba->ktime_seg6_max = 0; |
2906 | phba->ktime_seg6_min = 0xffffffff; |
2907 | phba->ktime_seg7_total = 0; |
2908 | phba->ktime_seg7_max = 0; |
2909 | phba->ktime_seg7_min = 0xffffffff; |
2910 | phba->ktime_seg8_total = 0; |
2911 | phba->ktime_seg8_max = 0; |
2912 | phba->ktime_seg8_min = 0xffffffff; |
2913 | phba->ktime_seg9_total = 0; |
2914 | phba->ktime_seg9_max = 0; |
2915 | phba->ktime_seg9_min = 0xffffffff; |
2916 | phba->ktime_seg10_total = 0; |
2917 | phba->ktime_seg10_max = 0; |
2918 | phba->ktime_seg10_min = 0xffffffff; |
2919 | return strlen(pbuf); |
2920 | } |
2921 | return -EINVAL; |
2922 | } |
2923 | |
2924 | static int |
2925 | lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) |
2926 | { |
2927 | struct lpfc_hba *phba = inode->i_private; |
2928 | struct lpfc_debug *debug; |
2929 | int rc = -ENOMEM; |
2930 | |
2931 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
2932 | if (!debug) |
2933 | goto out; |
2934 | |
2935 | /* Round to page boundary */ |
2936 | debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); |
2937 | if (!debug->buffer) { |
2938 | kfree(objp: debug); |
2939 | goto out; |
2940 | } |
2941 | |
2942 | debug->len = lpfc_debugfs_nvmeio_trc_data(phba, buf: debug->buffer, |
2943 | LPFC_NVMEIO_TRC_SIZE); |
2944 | |
2945 | debug->i_private = inode->i_private; |
2946 | file->private_data = debug; |
2947 | |
2948 | rc = 0; |
2949 | out: |
2950 | return rc; |
2951 | } |
2952 | |
2953 | static ssize_t |
2954 | lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, |
2955 | size_t nbytes, loff_t *ppos) |
2956 | { |
2957 | struct lpfc_debug *debug = file->private_data; |
2958 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
2959 | int i; |
2960 | unsigned long sz; |
2961 | char mybuf[64]; |
2962 | char *pbuf; |
2963 | |
2964 | if (nbytes > sizeof(mybuf) - 1) |
2965 | nbytes = sizeof(mybuf) - 1; |
2966 | |
2967 | memset(mybuf, 0, sizeof(mybuf)); |
2968 | |
2969 | if (copy_from_user(to: mybuf, from: buf, n: nbytes)) |
2970 | return -EFAULT; |
2971 | pbuf = &mybuf[0]; |
2972 | |
2973 | if ((strncmp(pbuf, "off" , sizeof("off" ) - 1) == 0)) { |
2974 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
2975 | "0570 nvmeio_trc_off\n" ); |
2976 | phba->nvmeio_trc_output_idx = 0; |
2977 | phba->nvmeio_trc_on = 0; |
2978 | return strlen(pbuf); |
2979 | } else if ((strncmp(pbuf, "on" , sizeof("on" ) - 1) == 0)) { |
2980 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
2981 | "0571 nvmeio_trc_on\n" ); |
2982 | phba->nvmeio_trc_output_idx = 0; |
2983 | phba->nvmeio_trc_on = 1; |
2984 | return strlen(pbuf); |
2985 | } |
2986 | |
2987 | /* We must be off to allocate the trace buffer */ |
2988 | if (phba->nvmeio_trc_on != 0) |
2989 | return -EINVAL; |
2990 | |
2991 | /* If not on or off, the parameter is the trace buffer size */ |
2992 | i = kstrtoul(s: pbuf, base: 0, res: &sz); |
2993 | if (i) |
2994 | return -EINVAL; |
2995 | phba->nvmeio_trc_size = (uint32_t)sz; |
2996 | |
2997 | /* It must be a power of 2 - round down */ |
2998 | i = 0; |
2999 | while (sz > 1) { |
3000 | sz = sz >> 1; |
3001 | i++; |
3002 | } |
3003 | sz = (1 << i); |
3004 | if (phba->nvmeio_trc_size != sz) |
3005 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
3006 | "0572 nvmeio_trc_size changed to %ld\n" , |
3007 | sz); |
3008 | phba->nvmeio_trc_size = (uint32_t)sz; |
3009 | |
3010 | /* If one previously exists, free it */ |
3011 | kfree(objp: phba->nvmeio_trc); |
3012 | |
3013 | /* Allocate new trace buffer and initialize */ |
3014 | phba->nvmeio_trc = kzalloc(size: (sizeof(struct lpfc_debugfs_nvmeio_trc) * |
3015 | sz), GFP_KERNEL); |
3016 | if (!phba->nvmeio_trc) { |
3017 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
3018 | "0573 Cannot create debugfs " |
3019 | "nvmeio_trc buffer\n" ); |
3020 | return -ENOMEM; |
3021 | } |
3022 | atomic_set(v: &phba->nvmeio_trc_cnt, i: 0); |
3023 | phba->nvmeio_trc_on = 0; |
3024 | phba->nvmeio_trc_output_idx = 0; |
3025 | |
3026 | return strlen(pbuf); |
3027 | } |
3028 | |
3029 | static int |
3030 | lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file) |
3031 | { |
3032 | struct lpfc_vport *vport = inode->i_private; |
3033 | struct lpfc_debug *debug; |
3034 | int rc = -ENOMEM; |
3035 | |
3036 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
3037 | if (!debug) |
3038 | goto out; |
3039 | |
3040 | /* Round to page boundary */ |
3041 | debug->buffer = kcalloc(n: 1, LPFC_SCSISTAT_SIZE, GFP_KERNEL); |
3042 | if (!debug->buffer) { |
3043 | kfree(objp: debug); |
3044 | goto out; |
3045 | } |
3046 | |
3047 | debug->len = lpfc_debugfs_hdwqstat_data(vport, buf: debug->buffer, |
3048 | LPFC_SCSISTAT_SIZE); |
3049 | |
3050 | debug->i_private = inode->i_private; |
3051 | file->private_data = debug; |
3052 | |
3053 | rc = 0; |
3054 | out: |
3055 | return rc; |
3056 | } |
3057 | |
3058 | static ssize_t |
3059 | lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf, |
3060 | size_t nbytes, loff_t *ppos) |
3061 | { |
3062 | struct lpfc_debug *debug = file->private_data; |
3063 | struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; |
3064 | struct lpfc_hba *phba = vport->phba; |
3065 | struct lpfc_hdwq_stat *c_stat; |
3066 | char mybuf[64]; |
3067 | char *pbuf; |
3068 | int i; |
3069 | |
3070 | if (nbytes > sizeof(mybuf) - 1) |
3071 | nbytes = sizeof(mybuf) - 1; |
3072 | |
3073 | memset(mybuf, 0, sizeof(mybuf)); |
3074 | |
3075 | if (copy_from_user(to: mybuf, from: buf, n: nbytes)) |
3076 | return -EFAULT; |
3077 | pbuf = &mybuf[0]; |
3078 | |
3079 | if ((strncmp(pbuf, "on" , sizeof("on" ) - 1) == 0)) { |
3080 | if (phba->nvmet_support) |
3081 | phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; |
3082 | else |
3083 | phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO | |
3084 | LPFC_CHECK_SCSI_IO); |
3085 | return strlen(pbuf); |
3086 | } else if ((strncmp(pbuf, "nvme_on" , sizeof("nvme_on" ) - 1) == 0)) { |
3087 | if (phba->nvmet_support) |
3088 | phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO; |
3089 | else |
3090 | phba->hdwqstat_on |= LPFC_CHECK_NVME_IO; |
3091 | return strlen(pbuf); |
3092 | } else if ((strncmp(pbuf, "scsi_on" , sizeof("scsi_on" ) - 1) == 0)) { |
3093 | if (!phba->nvmet_support) |
3094 | phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO; |
3095 | return strlen(pbuf); |
3096 | } else if ((strncmp(pbuf, "nvme_off" , sizeof("nvme_off" ) - 1) == 0)) { |
3097 | phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO | |
3098 | LPFC_CHECK_NVMET_IO); |
3099 | return strlen(pbuf); |
3100 | } else if ((strncmp(pbuf, "scsi_off" , sizeof("scsi_off" ) - 1) == 0)) { |
3101 | phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO; |
3102 | return strlen(pbuf); |
3103 | } else if ((strncmp(pbuf, "off" , |
3104 | sizeof("off" ) - 1) == 0)) { |
3105 | phba->hdwqstat_on = LPFC_CHECK_OFF; |
3106 | return strlen(pbuf); |
3107 | } else if ((strncmp(pbuf, "zero" , |
3108 | sizeof("zero" ) - 1) == 0)) { |
3109 | for_each_present_cpu(i) { |
3110 | c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i); |
3111 | c_stat->xmt_io = 0; |
3112 | c_stat->cmpl_io = 0; |
3113 | c_stat->rcv_io = 0; |
3114 | } |
3115 | return strlen(pbuf); |
3116 | } |
3117 | return -EINVAL; |
3118 | } |
3119 | |
3120 | /* |
3121 | * --------------------------------- |
3122 | * iDiag debugfs file access methods |
3123 | * --------------------------------- |
3124 | * |
3125 | * All access methods are through the proper SLI4 PCI function's debugfs |
3126 | * iDiag directory: |
3127 | * |
3128 | * /sys/kernel/debug/lpfc/fn<#>/iDiag |
3129 | */ |
3130 | |
3131 | /** |
3132 | * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space |
3133 | * @buf: The pointer to the user space buffer. |
3134 | * @nbytes: The number of bytes in the user space buffer. |
3135 | * @idiag_cmd: pointer to the idiag command struct. |
3136 | * |
3137 | * This routine reads data from debugfs user space buffer and parses the |
3138 | * buffer for getting the idiag command and arguments. The while space in |
3139 | * between the set of data is used as the parsing separator. |
3140 | * |
3141 | * This routine returns 0 when successful, it returns proper error code |
3142 | * back to the user space in error conditions. |
3143 | */ |
3144 | static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, |
3145 | struct lpfc_idiag_cmd *idiag_cmd) |
3146 | { |
3147 | char mybuf[64]; |
3148 | char *pbuf, *step_str; |
3149 | int i; |
3150 | size_t bsize; |
3151 | |
3152 | memset(mybuf, 0, sizeof(mybuf)); |
3153 | memset(idiag_cmd, 0, sizeof(*idiag_cmd)); |
3154 | bsize = min(nbytes, (sizeof(mybuf)-1)); |
3155 | |
3156 | if (copy_from_user(to: mybuf, from: buf, n: bsize)) |
3157 | return -EFAULT; |
3158 | pbuf = &mybuf[0]; |
3159 | step_str = strsep(&pbuf, "\t " ); |
3160 | |
3161 | /* The opcode must present */ |
3162 | if (!step_str) |
3163 | return -EINVAL; |
3164 | |
3165 | idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); |
3166 | if (idiag_cmd->opcode == 0) |
3167 | return -EINVAL; |
3168 | |
3169 | for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { |
3170 | step_str = strsep(&pbuf, "\t " ); |
3171 | if (!step_str) |
3172 | return i; |
3173 | idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); |
3174 | } |
3175 | return i; |
3176 | } |
3177 | |
3178 | /** |
3179 | * lpfc_idiag_open - idiag open debugfs |
3180 | * @inode: The inode pointer that contains a pointer to phba. |
3181 | * @file: The file pointer to attach the file operation. |
3182 | * |
3183 | * Description: |
3184 | * This routine is the entry point for the debugfs open file operation. It |
3185 | * gets the reference to phba from the i_private field in @inode, it then |
3186 | * allocates buffer for the file operation, performs the necessary PCI config |
3187 | * space read into the allocated buffer according to the idiag user command |
3188 | * setup, and then returns a pointer to buffer in the private_data field in |
3189 | * @file. |
3190 | * |
3191 | * Returns: |
3192 | * This function returns zero if successful. On error it will return an |
3193 | * negative error value. |
3194 | **/ |
3195 | static int |
3196 | lpfc_idiag_open(struct inode *inode, struct file *file) |
3197 | { |
3198 | struct lpfc_debug *debug; |
3199 | |
3200 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
3201 | if (!debug) |
3202 | return -ENOMEM; |
3203 | |
3204 | debug->i_private = inode->i_private; |
3205 | debug->buffer = NULL; |
3206 | file->private_data = debug; |
3207 | |
3208 | return 0; |
3209 | } |
3210 | |
3211 | /** |
3212 | * lpfc_idiag_release - Release idiag access file operation |
3213 | * @inode: The inode pointer that contains a vport pointer. (unused) |
3214 | * @file: The file pointer that contains the buffer to release. |
3215 | * |
3216 | * Description: |
3217 | * This routine is the generic release routine for the idiag access file |
3218 | * operation, it frees the buffer that was allocated when the debugfs file |
3219 | * was opened. |
3220 | * |
3221 | * Returns: |
3222 | * This function returns zero. |
3223 | **/ |
3224 | static int |
3225 | lpfc_idiag_release(struct inode *inode, struct file *file) |
3226 | { |
3227 | struct lpfc_debug *debug = file->private_data; |
3228 | |
3229 | /* Free the buffers to the file operation */ |
3230 | kfree(objp: debug->buffer); |
3231 | kfree(objp: debug); |
3232 | |
3233 | return 0; |
3234 | } |
3235 | |
3236 | /** |
3237 | * lpfc_idiag_cmd_release - Release idiag cmd access file operation |
3238 | * @inode: The inode pointer that contains a vport pointer. (unused) |
3239 | * @file: The file pointer that contains the buffer to release. |
3240 | * |
3241 | * Description: |
3242 | * This routine frees the buffer that was allocated when the debugfs file |
3243 | * was opened. It also reset the fields in the idiag command struct in the |
3244 | * case of command for write operation. |
3245 | * |
3246 | * Returns: |
3247 | * This function returns zero. |
3248 | **/ |
3249 | static int |
3250 | lpfc_idiag_cmd_release(struct inode *inode, struct file *file) |
3251 | { |
3252 | struct lpfc_debug *debug = file->private_data; |
3253 | |
3254 | if (debug->op == LPFC_IDIAG_OP_WR) { |
3255 | switch (idiag.cmd.opcode) { |
3256 | case LPFC_IDIAG_CMD_PCICFG_WR: |
3257 | case LPFC_IDIAG_CMD_PCICFG_ST: |
3258 | case LPFC_IDIAG_CMD_PCICFG_CL: |
3259 | case LPFC_IDIAG_CMD_QUEACC_WR: |
3260 | case LPFC_IDIAG_CMD_QUEACC_ST: |
3261 | case LPFC_IDIAG_CMD_QUEACC_CL: |
3262 | memset(&idiag, 0, sizeof(idiag)); |
3263 | break; |
3264 | default: |
3265 | break; |
3266 | } |
3267 | } |
3268 | |
3269 | /* Free the buffers to the file operation */ |
3270 | kfree(objp: debug->buffer); |
3271 | kfree(objp: debug); |
3272 | |
3273 | return 0; |
3274 | } |
3275 | |
3276 | /** |
3277 | * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg |
3278 | * @file: The file pointer to read from. |
3279 | * @buf: The buffer to copy the data to. |
3280 | * @nbytes: The number of bytes to read. |
3281 | * @ppos: The position in the file to start reading from. |
3282 | * |
3283 | * Description: |
3284 | * This routine reads data from the @phba pci config space according to the |
3285 | * idiag command, and copies to user @buf. Depending on the PCI config space |
3286 | * read command setup, it does either a single register read of a byte |
3287 | * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all |
3288 | * registers from the 4K extended PCI config space. |
3289 | * |
3290 | * Returns: |
3291 | * This function returns the amount of data that was read (this could be less |
3292 | * than @nbytes if the end of the file was reached) or a negative error value. |
3293 | **/ |
3294 | static ssize_t |
3295 | lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, |
3296 | loff_t *ppos) |
3297 | { |
3298 | struct lpfc_debug *debug = file->private_data; |
3299 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
3300 | int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; |
3301 | int where, count; |
3302 | char *pbuffer; |
3303 | struct pci_dev *pdev; |
3304 | uint32_t u32val; |
3305 | uint16_t u16val; |
3306 | uint8_t u8val; |
3307 | |
3308 | pdev = phba->pcidev; |
3309 | if (!pdev) |
3310 | return 0; |
3311 | |
3312 | /* This is a user read operation */ |
3313 | debug->op = LPFC_IDIAG_OP_RD; |
3314 | |
3315 | if (!debug->buffer) |
3316 | debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); |
3317 | if (!debug->buffer) |
3318 | return 0; |
3319 | pbuffer = debug->buffer; |
3320 | |
3321 | if (*ppos) |
3322 | return 0; |
3323 | |
3324 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { |
3325 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
3326 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; |
3327 | } else |
3328 | return 0; |
3329 | |
3330 | /* Read single PCI config space register */ |
3331 | switch (count) { |
3332 | case SIZE_U8: /* byte (8 bits) */ |
3333 | pci_read_config_byte(dev: pdev, where, val: &u8val); |
3334 | len += scnprintf(buf: pbuffer+len, LPFC_PCI_CFG_SIZE-len, |
3335 | fmt: "%03x: %02x\n" , where, u8val); |
3336 | break; |
3337 | case SIZE_U16: /* word (16 bits) */ |
3338 | pci_read_config_word(dev: pdev, where, val: &u16val); |
3339 | len += scnprintf(buf: pbuffer+len, LPFC_PCI_CFG_SIZE-len, |
3340 | fmt: "%03x: %04x\n" , where, u16val); |
3341 | break; |
3342 | case SIZE_U32: /* double word (32 bits) */ |
3343 | pci_read_config_dword(dev: pdev, where, val: &u32val); |
3344 | len += scnprintf(buf: pbuffer+len, LPFC_PCI_CFG_SIZE-len, |
3345 | fmt: "%03x: %08x\n" , where, u32val); |
3346 | break; |
3347 | case LPFC_PCI_CFG_BROWSE: /* browse all */ |
3348 | goto pcicfg_browse; |
3349 | default: |
3350 | /* illegal count */ |
3351 | len = 0; |
3352 | break; |
3353 | } |
3354 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
3355 | |
3356 | pcicfg_browse: |
3357 | |
3358 | /* Browse all PCI config space registers */ |
3359 | offset_label = idiag.offset.last_rd; |
3360 | offset = offset_label; |
3361 | |
3362 | /* Read PCI config space */ |
3363 | len += scnprintf(buf: pbuffer+len, LPFC_PCI_CFG_SIZE-len, |
3364 | fmt: "%03x: " , offset_label); |
3365 | while (index > 0) { |
3366 | pci_read_config_dword(dev: pdev, where: offset, val: &u32val); |
3367 | len += scnprintf(buf: pbuffer+len, LPFC_PCI_CFG_SIZE-len, |
3368 | fmt: "%08x " , u32val); |
3369 | offset += sizeof(uint32_t); |
3370 | if (offset >= LPFC_PCI_CFG_SIZE) { |
3371 | len += scnprintf(buf: pbuffer+len, |
3372 | LPFC_PCI_CFG_SIZE-len, fmt: "\n" ); |
3373 | break; |
3374 | } |
3375 | index -= sizeof(uint32_t); |
3376 | if (!index) |
3377 | len += scnprintf(buf: pbuffer+len, LPFC_PCI_CFG_SIZE-len, |
3378 | fmt: "\n" ); |
3379 | else if (!(index % (8 * sizeof(uint32_t)))) { |
3380 | offset_label += (8 * sizeof(uint32_t)); |
3381 | len += scnprintf(buf: pbuffer+len, LPFC_PCI_CFG_SIZE-len, |
3382 | fmt: "\n%03x: " , offset_label); |
3383 | } |
3384 | } |
3385 | |
3386 | /* Set up the offset for next portion of pci cfg read */ |
3387 | if (index == 0) { |
3388 | idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; |
3389 | if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) |
3390 | idiag.offset.last_rd = 0; |
3391 | } else |
3392 | idiag.offset.last_rd = 0; |
3393 | |
3394 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
3395 | } |
3396 | |
3397 | /** |
3398 | * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands |
3399 | * @file: The file pointer to read from. |
3400 | * @buf: The buffer to copy the user data from. |
3401 | * @nbytes: The number of bytes to get. |
3402 | * @ppos: The position in the file to start reading from. |
3403 | * |
3404 | * This routine get the debugfs idiag command struct from user space and |
3405 | * then perform the syntax check for PCI config space read or write command |
3406 | * accordingly. In the case of PCI config space read command, it sets up |
3407 | * the command in the idiag command struct for the debugfs read operation. |
3408 | * In the case of PCI config space write operation, it executes the write |
3409 | * operation into the PCI config space accordingly. |
3410 | * |
3411 | * It returns the @nbytges passing in from debugfs user space when successful. |
3412 | * In case of error conditions, it returns proper error code back to the user |
3413 | * space. |
3414 | */ |
3415 | static ssize_t |
3416 | lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, |
3417 | size_t nbytes, loff_t *ppos) |
3418 | { |
3419 | struct lpfc_debug *debug = file->private_data; |
3420 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
3421 | uint32_t where, value, count; |
3422 | uint32_t u32val; |
3423 | uint16_t u16val; |
3424 | uint8_t u8val; |
3425 | struct pci_dev *pdev; |
3426 | int rc; |
3427 | |
3428 | pdev = phba->pcidev; |
3429 | if (!pdev) |
3430 | return -EFAULT; |
3431 | |
3432 | /* This is a user write operation */ |
3433 | debug->op = LPFC_IDIAG_OP_WR; |
3434 | |
3435 | rc = lpfc_idiag_cmd_get(buf, nbytes, idiag_cmd: &idiag.cmd); |
3436 | if (rc < 0) |
3437 | return rc; |
3438 | |
3439 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { |
3440 | /* Sanity check on PCI config read command line arguments */ |
3441 | if (rc != LPFC_PCI_CFG_RD_CMD_ARG) |
3442 | goto error_out; |
3443 | /* Read command from PCI config space, set up command fields */ |
3444 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
3445 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; |
3446 | if (count == LPFC_PCI_CFG_BROWSE) { |
3447 | if (where % sizeof(uint32_t)) |
3448 | goto error_out; |
3449 | /* Starting offset to browse */ |
3450 | idiag.offset.last_rd = where; |
3451 | } else if ((count != sizeof(uint8_t)) && |
3452 | (count != sizeof(uint16_t)) && |
3453 | (count != sizeof(uint32_t))) |
3454 | goto error_out; |
3455 | if (count == sizeof(uint8_t)) { |
3456 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) |
3457 | goto error_out; |
3458 | if (where % sizeof(uint8_t)) |
3459 | goto error_out; |
3460 | } |
3461 | if (count == sizeof(uint16_t)) { |
3462 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) |
3463 | goto error_out; |
3464 | if (where % sizeof(uint16_t)) |
3465 | goto error_out; |
3466 | } |
3467 | if (count == sizeof(uint32_t)) { |
3468 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) |
3469 | goto error_out; |
3470 | if (where % sizeof(uint32_t)) |
3471 | goto error_out; |
3472 | } |
3473 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || |
3474 | idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || |
3475 | idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { |
3476 | /* Sanity check on PCI config write command line arguments */ |
3477 | if (rc != LPFC_PCI_CFG_WR_CMD_ARG) |
3478 | goto error_out; |
3479 | /* Write command to PCI config space, read-modify-write */ |
3480 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
3481 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; |
3482 | value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; |
3483 | /* Sanity checks */ |
3484 | if ((count != sizeof(uint8_t)) && |
3485 | (count != sizeof(uint16_t)) && |
3486 | (count != sizeof(uint32_t))) |
3487 | goto error_out; |
3488 | if (count == sizeof(uint8_t)) { |
3489 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) |
3490 | goto error_out; |
3491 | if (where % sizeof(uint8_t)) |
3492 | goto error_out; |
3493 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) |
3494 | pci_write_config_byte(dev: pdev, where, |
3495 | val: (uint8_t)value); |
3496 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { |
3497 | rc = pci_read_config_byte(dev: pdev, where, val: &u8val); |
3498 | if (!rc) { |
3499 | u8val |= (uint8_t)value; |
3500 | pci_write_config_byte(dev: pdev, where, |
3501 | val: u8val); |
3502 | } |
3503 | } |
3504 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { |
3505 | rc = pci_read_config_byte(dev: pdev, where, val: &u8val); |
3506 | if (!rc) { |
3507 | u8val &= (uint8_t)(~value); |
3508 | pci_write_config_byte(dev: pdev, where, |
3509 | val: u8val); |
3510 | } |
3511 | } |
3512 | } |
3513 | if (count == sizeof(uint16_t)) { |
3514 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) |
3515 | goto error_out; |
3516 | if (where % sizeof(uint16_t)) |
3517 | goto error_out; |
3518 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) |
3519 | pci_write_config_word(dev: pdev, where, |
3520 | val: (uint16_t)value); |
3521 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { |
3522 | rc = pci_read_config_word(dev: pdev, where, val: &u16val); |
3523 | if (!rc) { |
3524 | u16val |= (uint16_t)value; |
3525 | pci_write_config_word(dev: pdev, where, |
3526 | val: u16val); |
3527 | } |
3528 | } |
3529 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { |
3530 | rc = pci_read_config_word(dev: pdev, where, val: &u16val); |
3531 | if (!rc) { |
3532 | u16val &= (uint16_t)(~value); |
3533 | pci_write_config_word(dev: pdev, where, |
3534 | val: u16val); |
3535 | } |
3536 | } |
3537 | } |
3538 | if (count == sizeof(uint32_t)) { |
3539 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) |
3540 | goto error_out; |
3541 | if (where % sizeof(uint32_t)) |
3542 | goto error_out; |
3543 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) |
3544 | pci_write_config_dword(dev: pdev, where, val: value); |
3545 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { |
3546 | rc = pci_read_config_dword(dev: pdev, where, |
3547 | val: &u32val); |
3548 | if (!rc) { |
3549 | u32val |= value; |
3550 | pci_write_config_dword(dev: pdev, where, |
3551 | val: u32val); |
3552 | } |
3553 | } |
3554 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { |
3555 | rc = pci_read_config_dword(dev: pdev, where, |
3556 | val: &u32val); |
3557 | if (!rc) { |
3558 | u32val &= ~value; |
3559 | pci_write_config_dword(dev: pdev, where, |
3560 | val: u32val); |
3561 | } |
3562 | } |
3563 | } |
3564 | } else |
3565 | /* All other opecodes are illegal for now */ |
3566 | goto error_out; |
3567 | |
3568 | return nbytes; |
3569 | error_out: |
3570 | memset(&idiag, 0, sizeof(idiag)); |
3571 | return -EINVAL; |
3572 | } |
3573 | |
3574 | /** |
3575 | * lpfc_idiag_baracc_read - idiag debugfs pci bar access read |
3576 | * @file: The file pointer to read from. |
3577 | * @buf: The buffer to copy the data to. |
3578 | * @nbytes: The number of bytes to read. |
3579 | * @ppos: The position in the file to start reading from. |
3580 | * |
3581 | * Description: |
3582 | * This routine reads data from the @phba pci bar memory mapped space |
3583 | * according to the idiag command, and copies to user @buf. |
3584 | * |
3585 | * Returns: |
3586 | * This function returns the amount of data that was read (this could be less |
3587 | * than @nbytes if the end of the file was reached) or a negative error value. |
3588 | **/ |
3589 | static ssize_t |
3590 | lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, |
3591 | loff_t *ppos) |
3592 | { |
3593 | struct lpfc_debug *debug = file->private_data; |
3594 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
3595 | int offset_label, offset, offset_run, len = 0, index; |
3596 | int bar_num, acc_range, bar_size; |
3597 | char *pbuffer; |
3598 | void __iomem *mem_mapped_bar; |
3599 | uint32_t if_type; |
3600 | struct pci_dev *pdev; |
3601 | uint32_t u32val; |
3602 | |
3603 | pdev = phba->pcidev; |
3604 | if (!pdev) |
3605 | return 0; |
3606 | |
3607 | /* This is a user read operation */ |
3608 | debug->op = LPFC_IDIAG_OP_RD; |
3609 | |
3610 | if (!debug->buffer) |
3611 | debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); |
3612 | if (!debug->buffer) |
3613 | return 0; |
3614 | pbuffer = debug->buffer; |
3615 | |
3616 | if (*ppos) |
3617 | return 0; |
3618 | |
3619 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { |
3620 | bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; |
3621 | offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; |
3622 | acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; |
3623 | bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; |
3624 | } else |
3625 | return 0; |
3626 | |
3627 | if (acc_range == 0) |
3628 | return 0; |
3629 | |
3630 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); |
3631 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { |
3632 | if (bar_num == IDIAG_BARACC_BAR_0) |
3633 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; |
3634 | else if (bar_num == IDIAG_BARACC_BAR_1) |
3635 | mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; |
3636 | else if (bar_num == IDIAG_BARACC_BAR_2) |
3637 | mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; |
3638 | else |
3639 | return 0; |
3640 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { |
3641 | if (bar_num == IDIAG_BARACC_BAR_0) |
3642 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; |
3643 | else |
3644 | return 0; |
3645 | } else |
3646 | return 0; |
3647 | |
3648 | /* Read single PCI bar space register */ |
3649 | if (acc_range == SINGLE_WORD) { |
3650 | offset_run = offset; |
3651 | u32val = readl(addr: mem_mapped_bar + offset_run); |
3652 | len += scnprintf(buf: pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, |
3653 | fmt: "%05x: %08x\n" , offset_run, u32val); |
3654 | } else |
3655 | goto baracc_browse; |
3656 | |
3657 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
3658 | |
3659 | baracc_browse: |
3660 | |
3661 | /* Browse all PCI bar space registers */ |
3662 | offset_label = idiag.offset.last_rd; |
3663 | offset_run = offset_label; |
3664 | |
3665 | /* Read PCI bar memory mapped space */ |
3666 | len += scnprintf(buf: pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, |
3667 | fmt: "%05x: " , offset_label); |
3668 | index = LPFC_PCI_BAR_RD_SIZE; |
3669 | while (index > 0) { |
3670 | u32val = readl(addr: mem_mapped_bar + offset_run); |
3671 | len += scnprintf(buf: pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, |
3672 | fmt: "%08x " , u32val); |
3673 | offset_run += sizeof(uint32_t); |
3674 | if (acc_range == LPFC_PCI_BAR_BROWSE) { |
3675 | if (offset_run >= bar_size) { |
3676 | len += scnprintf(buf: pbuffer+len, |
3677 | LPFC_PCI_BAR_RD_BUF_SIZE-len, fmt: "\n" ); |
3678 | break; |
3679 | } |
3680 | } else { |
3681 | if (offset_run >= offset + |
3682 | (acc_range * sizeof(uint32_t))) { |
3683 | len += scnprintf(buf: pbuffer+len, |
3684 | LPFC_PCI_BAR_RD_BUF_SIZE-len, fmt: "\n" ); |
3685 | break; |
3686 | } |
3687 | } |
3688 | index -= sizeof(uint32_t); |
3689 | if (!index) |
3690 | len += scnprintf(buf: pbuffer+len, |
3691 | LPFC_PCI_BAR_RD_BUF_SIZE-len, fmt: "\n" ); |
3692 | else if (!(index % (8 * sizeof(uint32_t)))) { |
3693 | offset_label += (8 * sizeof(uint32_t)); |
3694 | len += scnprintf(buf: pbuffer+len, |
3695 | LPFC_PCI_BAR_RD_BUF_SIZE-len, |
3696 | fmt: "\n%05x: " , offset_label); |
3697 | } |
3698 | } |
3699 | |
3700 | /* Set up the offset for next portion of pci bar read */ |
3701 | if (index == 0) { |
3702 | idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; |
3703 | if (acc_range == LPFC_PCI_BAR_BROWSE) { |
3704 | if (idiag.offset.last_rd >= bar_size) |
3705 | idiag.offset.last_rd = 0; |
3706 | } else { |
3707 | if (offset_run >= offset + |
3708 | (acc_range * sizeof(uint32_t))) |
3709 | idiag.offset.last_rd = offset; |
3710 | } |
3711 | } else { |
3712 | if (acc_range == LPFC_PCI_BAR_BROWSE) |
3713 | idiag.offset.last_rd = 0; |
3714 | else |
3715 | idiag.offset.last_rd = offset; |
3716 | } |
3717 | |
3718 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
3719 | } |
3720 | |
3721 | /** |
3722 | * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands |
3723 | * @file: The file pointer to read from. |
3724 | * @buf: The buffer to copy the user data from. |
3725 | * @nbytes: The number of bytes to get. |
3726 | * @ppos: The position in the file to start reading from. |
3727 | * |
3728 | * This routine get the debugfs idiag command struct from user space and |
3729 | * then perform the syntax check for PCI bar memory mapped space read or |
3730 | * write command accordingly. In the case of PCI bar memory mapped space |
3731 | * read command, it sets up the command in the idiag command struct for |
3732 | * the debugfs read operation. In the case of PCI bar memorpy mapped space |
3733 | * write operation, it executes the write operation into the PCI bar memory |
3734 | * mapped space accordingly. |
3735 | * |
3736 | * It returns the @nbytges passing in from debugfs user space when successful. |
3737 | * In case of error conditions, it returns proper error code back to the user |
3738 | * space. |
3739 | */ |
3740 | static ssize_t |
3741 | lpfc_idiag_baracc_write(struct file *file, const char __user *buf, |
3742 | size_t nbytes, loff_t *ppos) |
3743 | { |
3744 | struct lpfc_debug *debug = file->private_data; |
3745 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
3746 | uint32_t bar_num, bar_size, offset, value, acc_range; |
3747 | struct pci_dev *pdev; |
3748 | void __iomem *mem_mapped_bar; |
3749 | uint32_t if_type; |
3750 | uint32_t u32val; |
3751 | int rc; |
3752 | |
3753 | pdev = phba->pcidev; |
3754 | if (!pdev) |
3755 | return -EFAULT; |
3756 | |
3757 | /* This is a user write operation */ |
3758 | debug->op = LPFC_IDIAG_OP_WR; |
3759 | |
3760 | rc = lpfc_idiag_cmd_get(buf, nbytes, idiag_cmd: &idiag.cmd); |
3761 | if (rc < 0) |
3762 | return rc; |
3763 | |
3764 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); |
3765 | bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; |
3766 | |
3767 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { |
3768 | if ((bar_num != IDIAG_BARACC_BAR_0) && |
3769 | (bar_num != IDIAG_BARACC_BAR_1) && |
3770 | (bar_num != IDIAG_BARACC_BAR_2)) |
3771 | goto error_out; |
3772 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { |
3773 | if (bar_num != IDIAG_BARACC_BAR_0) |
3774 | goto error_out; |
3775 | } else |
3776 | goto error_out; |
3777 | |
3778 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { |
3779 | if (bar_num == IDIAG_BARACC_BAR_0) { |
3780 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = |
3781 | LPFC_PCI_IF0_BAR0_SIZE; |
3782 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; |
3783 | } else if (bar_num == IDIAG_BARACC_BAR_1) { |
3784 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = |
3785 | LPFC_PCI_IF0_BAR1_SIZE; |
3786 | mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; |
3787 | } else if (bar_num == IDIAG_BARACC_BAR_2) { |
3788 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = |
3789 | LPFC_PCI_IF0_BAR2_SIZE; |
3790 | mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; |
3791 | } else |
3792 | goto error_out; |
3793 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { |
3794 | if (bar_num == IDIAG_BARACC_BAR_0) { |
3795 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = |
3796 | LPFC_PCI_IF2_BAR0_SIZE; |
3797 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; |
3798 | } else |
3799 | goto error_out; |
3800 | } else |
3801 | goto error_out; |
3802 | |
3803 | offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; |
3804 | if (offset % sizeof(uint32_t)) |
3805 | goto error_out; |
3806 | |
3807 | bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; |
3808 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { |
3809 | /* Sanity check on PCI config read command line arguments */ |
3810 | if (rc != LPFC_PCI_BAR_RD_CMD_ARG) |
3811 | goto error_out; |
3812 | acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; |
3813 | if (acc_range == LPFC_PCI_BAR_BROWSE) { |
3814 | if (offset > bar_size - sizeof(uint32_t)) |
3815 | goto error_out; |
3816 | /* Starting offset to browse */ |
3817 | idiag.offset.last_rd = offset; |
3818 | } else if (acc_range > SINGLE_WORD) { |
3819 | if (offset + acc_range * sizeof(uint32_t) > bar_size) |
3820 | goto error_out; |
3821 | /* Starting offset to browse */ |
3822 | idiag.offset.last_rd = offset; |
3823 | } else if (acc_range != SINGLE_WORD) |
3824 | goto error_out; |
3825 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || |
3826 | idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || |
3827 | idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { |
3828 | /* Sanity check on PCI bar write command line arguments */ |
3829 | if (rc != LPFC_PCI_BAR_WR_CMD_ARG) |
3830 | goto error_out; |
3831 | /* Write command to PCI bar space, read-modify-write */ |
3832 | acc_range = SINGLE_WORD; |
3833 | value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; |
3834 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { |
3835 | writel(val: value, addr: mem_mapped_bar + offset); |
3836 | readl(addr: mem_mapped_bar + offset); |
3837 | } |
3838 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { |
3839 | u32val = readl(addr: mem_mapped_bar + offset); |
3840 | u32val |= value; |
3841 | writel(val: u32val, addr: mem_mapped_bar + offset); |
3842 | readl(addr: mem_mapped_bar + offset); |
3843 | } |
3844 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { |
3845 | u32val = readl(addr: mem_mapped_bar + offset); |
3846 | u32val &= ~value; |
3847 | writel(val: u32val, addr: mem_mapped_bar + offset); |
3848 | readl(addr: mem_mapped_bar + offset); |
3849 | } |
3850 | } else |
3851 | /* All other opecodes are illegal for now */ |
3852 | goto error_out; |
3853 | |
3854 | return nbytes; |
3855 | error_out: |
3856 | memset(&idiag, 0, sizeof(idiag)); |
3857 | return -EINVAL; |
3858 | } |
3859 | |
3860 | static int |
3861 | __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, |
3862 | char *pbuffer, int len) |
3863 | { |
3864 | if (!qp) |
3865 | return len; |
3866 | |
3867 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3868 | fmt: "\t\t%s WQ info: " , wqtype); |
3869 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3870 | fmt: "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n" , |
3871 | qp->assoc_qid, qp->q_cnt_1, |
3872 | (unsigned long long)qp->q_cnt_4); |
3873 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3874 | fmt: "\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " |
3875 | "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]" , |
3876 | qp->queue_id, qp->entry_count, |
3877 | qp->entry_size, qp->host_index, |
3878 | qp->hba_index, qp->notify_interval); |
3879 | len += scnprintf(buf: pbuffer + len, |
3880 | LPFC_QUE_INFO_GET_BUF_SIZE - len, fmt: "\n" ); |
3881 | return len; |
3882 | } |
3883 | |
3884 | static int |
3885 | lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, |
3886 | int *len, int max_cnt, int cq_id) |
3887 | { |
3888 | struct lpfc_queue *qp; |
3889 | int qidx; |
3890 | |
3891 | for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { |
3892 | qp = phba->sli4_hba.hdwq[qidx].io_wq; |
3893 | if (qp->assoc_qid != cq_id) |
3894 | continue; |
3895 | *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, len: *len); |
3896 | if (*len >= max_cnt) |
3897 | return 1; |
3898 | } |
3899 | return 0; |
3900 | } |
3901 | |
3902 | static int |
3903 | __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, |
3904 | char *pbuffer, int len) |
3905 | { |
3906 | if (!qp) |
3907 | return len; |
3908 | |
3909 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3910 | fmt: "\t%s CQ info: " , cqtype); |
3911 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3912 | fmt: "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " |
3913 | "xabt:x%x wq:x%llx]\n" , |
3914 | qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, |
3915 | qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); |
3916 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3917 | fmt: "\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " |
3918 | "HST-IDX[%04d], NTFI[%03d], PLMT[%03d]" , |
3919 | qp->queue_id, qp->entry_count, |
3920 | qp->entry_size, qp->host_index, |
3921 | qp->notify_interval, qp->max_proc_limit); |
3922 | |
3923 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3924 | fmt: "\n" ); |
3925 | |
3926 | return len; |
3927 | } |
3928 | |
3929 | static int |
3930 | __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, |
3931 | char *rqtype, char *pbuffer, int len) |
3932 | { |
3933 | if (!qp || !datqp) |
3934 | return len; |
3935 | |
3936 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3937 | fmt: "\t\t%s RQ info: " , rqtype); |
3938 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3939 | fmt: "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " |
3940 | "posted:x%x rcv:x%llx]\n" , |
3941 | qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, |
3942 | qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); |
3943 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3944 | fmt: "\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " |
3945 | "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n" , |
3946 | qp->queue_id, qp->entry_count, qp->entry_size, |
3947 | qp->host_index, qp->hba_index, qp->notify_interval); |
3948 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
3949 | fmt: "\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " |
3950 | "HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n" , |
3951 | datqp->queue_id, datqp->entry_count, |
3952 | datqp->entry_size, datqp->host_index, |
3953 | datqp->hba_index, datqp->notify_interval); |
3954 | return len; |
3955 | } |
3956 | |
3957 | static int |
3958 | lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, |
3959 | int *len, int max_cnt, int eqidx, int eq_id) |
3960 | { |
3961 | struct lpfc_queue *qp; |
3962 | int rc; |
3963 | |
3964 | qp = phba->sli4_hba.hdwq[eqidx].io_cq; |
3965 | |
3966 | *len = __lpfc_idiag_print_cq(qp, cqtype: "IO" , pbuffer, len: *len); |
3967 | |
3968 | /* Reset max counter */ |
3969 | qp->CQ_max_cqe = 0; |
3970 | |
3971 | if (*len >= max_cnt) |
3972 | return 1; |
3973 | |
3974 | rc = lpfc_idiag_wqs_for_cq(phba, wqtype: "IO" , pbuffer, len, |
3975 | max_cnt, cq_id: qp->queue_id); |
3976 | if (rc) |
3977 | return 1; |
3978 | |
3979 | if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) { |
3980 | /* NVMET CQset */ |
3981 | qp = phba->sli4_hba.nvmet_cqset[eqidx]; |
3982 | *len = __lpfc_idiag_print_cq(qp, cqtype: "NVMET CQset" , pbuffer, len: *len); |
3983 | |
3984 | /* Reset max counter */ |
3985 | qp->CQ_max_cqe = 0; |
3986 | |
3987 | if (*len >= max_cnt) |
3988 | return 1; |
3989 | |
3990 | /* RQ header */ |
3991 | qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx]; |
3992 | *len = __lpfc_idiag_print_rqpair(qp, |
3993 | datqp: phba->sli4_hba.nvmet_mrq_data[eqidx], |
3994 | rqtype: "NVMET MRQ" , pbuffer, len: *len); |
3995 | |
3996 | if (*len >= max_cnt) |
3997 | return 1; |
3998 | } |
3999 | |
4000 | return 0; |
4001 | } |
4002 | |
4003 | static int |
4004 | __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, |
4005 | char *pbuffer, int len) |
4006 | { |
4007 | if (!qp) |
4008 | return len; |
4009 | |
4010 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
4011 | fmt: "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " |
4012 | "cqe_proc:x%x eqe_proc:x%llx eqd %d]\n" , |
4013 | eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, |
4014 | (unsigned long long)qp->q_cnt_4, qp->q_mode); |
4015 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
4016 | fmt: "EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], " |
4017 | "HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]" , |
4018 | qp->queue_id, qp->entry_count, qp->entry_size, |
4019 | qp->host_index, qp->notify_interval, |
4020 | qp->max_proc_limit, qp->chann); |
4021 | len += scnprintf(buf: pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
4022 | fmt: "\n" ); |
4023 | |
4024 | return len; |
4025 | } |
4026 | |
4027 | /** |
4028 | * lpfc_idiag_queinfo_read - idiag debugfs read queue information |
4029 | * @file: The file pointer to read from. |
4030 | * @buf: The buffer to copy the data to. |
4031 | * @nbytes: The number of bytes to read. |
4032 | * @ppos: The position in the file to start reading from. |
4033 | * |
4034 | * Description: |
4035 | * This routine reads data from the @phba SLI4 PCI function queue information, |
4036 | * and copies to user @buf. |
4037 | * This routine only returns 1 EQs worth of information. It remembers the last |
4038 | * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will |
4039 | * retrieve all EQs allocated for the phba. |
4040 | * |
4041 | * Returns: |
4042 | * This function returns the amount of data that was read (this could be less |
4043 | * than @nbytes if the end of the file was reached) or a negative error value. |
4044 | **/ |
4045 | static ssize_t |
4046 | lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, |
4047 | loff_t *ppos) |
4048 | { |
4049 | struct lpfc_debug *debug = file->private_data; |
4050 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
4051 | char *pbuffer; |
4052 | int max_cnt, rc, x, len = 0; |
4053 | struct lpfc_queue *qp = NULL; |
4054 | |
4055 | if (!debug->buffer) |
4056 | debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); |
4057 | if (!debug->buffer) |
4058 | return 0; |
4059 | pbuffer = debug->buffer; |
4060 | max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; |
4061 | |
4062 | if (*ppos) |
4063 | return 0; |
4064 | |
4065 | spin_lock_irq(lock: &phba->hbalock); |
4066 | |
4067 | /* Fast-path event queue */ |
4068 | if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) { |
4069 | |
4070 | x = phba->lpfc_idiag_last_eq; |
4071 | phba->lpfc_idiag_last_eq++; |
4072 | if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue) |
4073 | phba->lpfc_idiag_last_eq = 0; |
4074 | |
4075 | len += scnprintf(buf: pbuffer + len, |
4076 | LPFC_QUE_INFO_GET_BUF_SIZE - len, |
4077 | fmt: "HDWQ %d out of %d HBA HDWQs\n" , |
4078 | x, phba->cfg_hdw_queue); |
4079 | |
4080 | /* Fast-path EQ */ |
4081 | qp = phba->sli4_hba.hdwq[x].hba_eq; |
4082 | if (!qp) |
4083 | goto out; |
4084 | |
4085 | len = __lpfc_idiag_print_eq(qp, eqtype: "HBA" , pbuffer, len); |
4086 | |
4087 | /* Reset max counter */ |
4088 | qp->EQ_max_eqe = 0; |
4089 | |
4090 | if (len >= max_cnt) |
4091 | goto too_big; |
4092 | |
4093 | /* will dump both fcp and nvme cqs/wqs for the eq */ |
4094 | rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, len: &len, |
4095 | max_cnt, eqidx: x, eq_id: qp->queue_id); |
4096 | if (rc) |
4097 | goto too_big; |
4098 | |
4099 | /* Only EQ 0 has slow path CQs configured */ |
4100 | if (x) |
4101 | goto out; |
4102 | |
4103 | /* Slow-path mailbox CQ */ |
4104 | qp = phba->sli4_hba.mbx_cq; |
4105 | len = __lpfc_idiag_print_cq(qp, cqtype: "MBX" , pbuffer, len); |
4106 | if (len >= max_cnt) |
4107 | goto too_big; |
4108 | |
4109 | /* Slow-path MBOX MQ */ |
4110 | qp = phba->sli4_hba.mbx_wq; |
4111 | len = __lpfc_idiag_print_wq(qp, wqtype: "MBX" , pbuffer, len); |
4112 | if (len >= max_cnt) |
4113 | goto too_big; |
4114 | |
4115 | /* Slow-path ELS response CQ */ |
4116 | qp = phba->sli4_hba.els_cq; |
4117 | len = __lpfc_idiag_print_cq(qp, cqtype: "ELS" , pbuffer, len); |
4118 | /* Reset max counter */ |
4119 | if (qp) |
4120 | qp->CQ_max_cqe = 0; |
4121 | if (len >= max_cnt) |
4122 | goto too_big; |
4123 | |
4124 | /* Slow-path ELS WQ */ |
4125 | qp = phba->sli4_hba.els_wq; |
4126 | len = __lpfc_idiag_print_wq(qp, wqtype: "ELS" , pbuffer, len); |
4127 | if (len >= max_cnt) |
4128 | goto too_big; |
4129 | |
4130 | qp = phba->sli4_hba.hdr_rq; |
4131 | len = __lpfc_idiag_print_rqpair(qp, datqp: phba->sli4_hba.dat_rq, |
4132 | rqtype: "ELS RQpair" , pbuffer, len); |
4133 | if (len >= max_cnt) |
4134 | goto too_big; |
4135 | |
4136 | /* Slow-path NVME LS response CQ */ |
4137 | qp = phba->sli4_hba.nvmels_cq; |
4138 | len = __lpfc_idiag_print_cq(qp, cqtype: "NVME LS" , |
4139 | pbuffer, len); |
4140 | /* Reset max counter */ |
4141 | if (qp) |
4142 | qp->CQ_max_cqe = 0; |
4143 | if (len >= max_cnt) |
4144 | goto too_big; |
4145 | |
4146 | /* Slow-path NVME LS WQ */ |
4147 | qp = phba->sli4_hba.nvmels_wq; |
4148 | len = __lpfc_idiag_print_wq(qp, wqtype: "NVME LS" , |
4149 | pbuffer, len); |
4150 | if (len >= max_cnt) |
4151 | goto too_big; |
4152 | |
4153 | goto out; |
4154 | } |
4155 | |
4156 | spin_unlock_irq(lock: &phba->hbalock); |
4157 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
4158 | |
4159 | too_big: |
4160 | len += scnprintf(buf: pbuffer + len, |
4161 | LPFC_QUE_INFO_GET_BUF_SIZE - len, fmt: "Truncated ...\n" ); |
4162 | out: |
4163 | spin_unlock_irq(lock: &phba->hbalock); |
4164 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
4165 | } |
4166 | |
4167 | /** |
4168 | * lpfc_idiag_que_param_check - queue access command parameter sanity check |
4169 | * @q: The pointer to queue structure. |
4170 | * @index: The index into a queue entry. |
4171 | * @count: The number of queue entries to access. |
4172 | * |
4173 | * Description: |
4174 | * The routine performs sanity check on device queue access method commands. |
4175 | * |
4176 | * Returns: |
4177 | * This function returns -EINVAL when fails the sanity check, otherwise, it |
4178 | * returns 0. |
4179 | **/ |
4180 | static int |
4181 | lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) |
4182 | { |
4183 | /* Only support single entry read or browsing */ |
4184 | if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) |
4185 | return -EINVAL; |
4186 | if (index > q->entry_count - 1) |
4187 | return -EINVAL; |
4188 | return 0; |
4189 | } |
4190 | |
4191 | /** |
4192 | * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index |
4193 | * @pbuffer: The pointer to buffer to copy the read data into. |
4194 | * @len: Length of the buffer. |
4195 | * @pque: The pointer to the queue to be read. |
4196 | * @index: The index into the queue entry. |
4197 | * |
4198 | * Description: |
4199 | * This routine reads out a single entry from the given queue's index location |
4200 | * and copies it into the buffer provided. |
4201 | * |
4202 | * Returns: |
4203 | * This function returns 0 when it fails, otherwise, it returns the length of |
4204 | * the data read into the buffer provided. |
4205 | **/ |
4206 | static int |
4207 | lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, |
4208 | uint32_t index) |
4209 | { |
4210 | int offset, esize; |
4211 | uint32_t *pentry; |
4212 | |
4213 | if (!pbuffer || !pque) |
4214 | return 0; |
4215 | |
4216 | esize = pque->entry_size; |
4217 | len += scnprintf(buf: pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, |
4218 | fmt: "QE-INDEX[%04d]:\n" , index); |
4219 | |
4220 | offset = 0; |
4221 | pentry = lpfc_sli4_qe(q: pque, idx: index); |
4222 | while (esize > 0) { |
4223 | len += scnprintf(buf: pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, |
4224 | fmt: "%08x " , *pentry); |
4225 | pentry++; |
4226 | offset += sizeof(uint32_t); |
4227 | esize -= sizeof(uint32_t); |
4228 | if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) |
4229 | len += scnprintf(buf: pbuffer+len, |
4230 | LPFC_QUE_ACC_BUF_SIZE-len, fmt: "\n" ); |
4231 | } |
4232 | len += scnprintf(buf: pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, fmt: "\n" ); |
4233 | |
4234 | return len; |
4235 | } |
4236 | |
4237 | /** |
4238 | * lpfc_idiag_queacc_read - idiag debugfs read port queue |
4239 | * @file: The file pointer to read from. |
4240 | * @buf: The buffer to copy the data to. |
4241 | * @nbytes: The number of bytes to read. |
4242 | * @ppos: The position in the file to start reading from. |
4243 | * |
4244 | * Description: |
4245 | * This routine reads data from the @phba device queue memory according to the |
4246 | * idiag command, and copies to user @buf. Depending on the queue dump read |
4247 | * command setup, it does either a single queue entry read or browing through |
4248 | * all entries of the queue. |
4249 | * |
4250 | * Returns: |
4251 | * This function returns the amount of data that was read (this could be less |
4252 | * than @nbytes if the end of the file was reached) or a negative error value. |
4253 | **/ |
4254 | static ssize_t |
4255 | lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, |
4256 | loff_t *ppos) |
4257 | { |
4258 | struct lpfc_debug *debug = file->private_data; |
4259 | uint32_t last_index, index, count; |
4260 | struct lpfc_queue *pque = NULL; |
4261 | char *pbuffer; |
4262 | int len = 0; |
4263 | |
4264 | /* This is a user read operation */ |
4265 | debug->op = LPFC_IDIAG_OP_RD; |
4266 | |
4267 | if (!debug->buffer) |
4268 | debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); |
4269 | if (!debug->buffer) |
4270 | return 0; |
4271 | pbuffer = debug->buffer; |
4272 | |
4273 | if (*ppos) |
4274 | return 0; |
4275 | |
4276 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { |
4277 | index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; |
4278 | count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; |
4279 | pque = (struct lpfc_queue *)idiag.ptr_private; |
4280 | } else |
4281 | return 0; |
4282 | |
4283 | /* Browse the queue starting from index */ |
4284 | if (count == LPFC_QUE_ACC_BROWSE) |
4285 | goto que_browse; |
4286 | |
4287 | /* Read a single entry from the queue */ |
4288 | len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); |
4289 | |
4290 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
4291 | |
4292 | que_browse: |
4293 | |
4294 | /* Browse all entries from the queue */ |
4295 | last_index = idiag.offset.last_rd; |
4296 | index = last_index; |
4297 | |
4298 | while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { |
4299 | len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); |
4300 | index++; |
4301 | if (index > pque->entry_count - 1) |
4302 | break; |
4303 | } |
4304 | |
4305 | /* Set up the offset for next portion of pci cfg read */ |
4306 | if (index > pque->entry_count - 1) |
4307 | index = 0; |
4308 | idiag.offset.last_rd = index; |
4309 | |
4310 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
4311 | } |
4312 | |
4313 | /** |
4314 | * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands |
4315 | * @file: The file pointer to read from. |
4316 | * @buf: The buffer to copy the user data from. |
4317 | * @nbytes: The number of bytes to get. |
4318 | * @ppos: The position in the file to start reading from. |
4319 | * |
4320 | * This routine get the debugfs idiag command struct from user space and then |
4321 | * perform the syntax check for port queue read (dump) or write (set) command |
4322 | * accordingly. In the case of port queue read command, it sets up the command |
4323 | * in the idiag command struct for the following debugfs read operation. In |
4324 | * the case of port queue write operation, it executes the write operation |
4325 | * into the port queue entry accordingly. |
4326 | * |
4327 | * It returns the @nbytges passing in from debugfs user space when successful. |
4328 | * In case of error conditions, it returns proper error code back to the user |
4329 | * space. |
4330 | **/ |
4331 | static ssize_t |
4332 | lpfc_idiag_queacc_write(struct file *file, const char __user *buf, |
4333 | size_t nbytes, loff_t *ppos) |
4334 | { |
4335 | struct lpfc_debug *debug = file->private_data; |
4336 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
4337 | uint32_t qidx, quetp, queid, index, count, offset, value; |
4338 | uint32_t *pentry; |
4339 | struct lpfc_queue *pque, *qp; |
4340 | int rc; |
4341 | |
4342 | /* This is a user write operation */ |
4343 | debug->op = LPFC_IDIAG_OP_WR; |
4344 | |
4345 | rc = lpfc_idiag_cmd_get(buf, nbytes, idiag_cmd: &idiag.cmd); |
4346 | if (rc < 0) |
4347 | return rc; |
4348 | |
4349 | /* Get and sanity check on command feilds */ |
4350 | quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; |
4351 | queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; |
4352 | index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; |
4353 | count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; |
4354 | offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; |
4355 | value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; |
4356 | |
4357 | /* Sanity check on command line arguments */ |
4358 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || |
4359 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || |
4360 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { |
4361 | if (rc != LPFC_QUE_ACC_WR_CMD_ARG) |
4362 | goto error_out; |
4363 | if (count != 1) |
4364 | goto error_out; |
4365 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { |
4366 | if (rc != LPFC_QUE_ACC_RD_CMD_ARG) |
4367 | goto error_out; |
4368 | } else |
4369 | goto error_out; |
4370 | |
4371 | switch (quetp) { |
4372 | case LPFC_IDIAG_EQ: |
4373 | /* HBA event queue */ |
4374 | if (phba->sli4_hba.hdwq) { |
4375 | for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { |
4376 | qp = phba->sli4_hba.hdwq[qidx].hba_eq; |
4377 | if (qp && qp->queue_id == queid) { |
4378 | /* Sanity check */ |
4379 | rc = lpfc_idiag_que_param_check(q: qp, |
4380 | index, count); |
4381 | if (rc) |
4382 | goto error_out; |
4383 | idiag.ptr_private = qp; |
4384 | goto pass_check; |
4385 | } |
4386 | } |
4387 | } |
4388 | goto error_out; |
4389 | |
4390 | case LPFC_IDIAG_CQ: |
4391 | /* MBX complete queue */ |
4392 | if (phba->sli4_hba.mbx_cq && |
4393 | phba->sli4_hba.mbx_cq->queue_id == queid) { |
4394 | /* Sanity check */ |
4395 | rc = lpfc_idiag_que_param_check( |
4396 | q: phba->sli4_hba.mbx_cq, index, count); |
4397 | if (rc) |
4398 | goto error_out; |
4399 | idiag.ptr_private = phba->sli4_hba.mbx_cq; |
4400 | goto pass_check; |
4401 | } |
4402 | /* ELS complete queue */ |
4403 | if (phba->sli4_hba.els_cq && |
4404 | phba->sli4_hba.els_cq->queue_id == queid) { |
4405 | /* Sanity check */ |
4406 | rc = lpfc_idiag_que_param_check( |
4407 | q: phba->sli4_hba.els_cq, index, count); |
4408 | if (rc) |
4409 | goto error_out; |
4410 | idiag.ptr_private = phba->sli4_hba.els_cq; |
4411 | goto pass_check; |
4412 | } |
4413 | /* NVME LS complete queue */ |
4414 | if (phba->sli4_hba.nvmels_cq && |
4415 | phba->sli4_hba.nvmels_cq->queue_id == queid) { |
4416 | /* Sanity check */ |
4417 | rc = lpfc_idiag_que_param_check( |
4418 | q: phba->sli4_hba.nvmels_cq, index, count); |
4419 | if (rc) |
4420 | goto error_out; |
4421 | idiag.ptr_private = phba->sli4_hba.nvmels_cq; |
4422 | goto pass_check; |
4423 | } |
4424 | /* FCP complete queue */ |
4425 | if (phba->sli4_hba.hdwq) { |
4426 | for (qidx = 0; qidx < phba->cfg_hdw_queue; |
4427 | qidx++) { |
4428 | qp = phba->sli4_hba.hdwq[qidx].io_cq; |
4429 | if (qp && qp->queue_id == queid) { |
4430 | /* Sanity check */ |
4431 | rc = lpfc_idiag_que_param_check( |
4432 | q: qp, index, count); |
4433 | if (rc) |
4434 | goto error_out; |
4435 | idiag.ptr_private = qp; |
4436 | goto pass_check; |
4437 | } |
4438 | } |
4439 | } |
4440 | goto error_out; |
4441 | |
4442 | case LPFC_IDIAG_MQ: |
4443 | /* MBX work queue */ |
4444 | if (phba->sli4_hba.mbx_wq && |
4445 | phba->sli4_hba.mbx_wq->queue_id == queid) { |
4446 | /* Sanity check */ |
4447 | rc = lpfc_idiag_que_param_check( |
4448 | q: phba->sli4_hba.mbx_wq, index, count); |
4449 | if (rc) |
4450 | goto error_out; |
4451 | idiag.ptr_private = phba->sli4_hba.mbx_wq; |
4452 | goto pass_check; |
4453 | } |
4454 | goto error_out; |
4455 | |
4456 | case LPFC_IDIAG_WQ: |
4457 | /* ELS work queue */ |
4458 | if (phba->sli4_hba.els_wq && |
4459 | phba->sli4_hba.els_wq->queue_id == queid) { |
4460 | /* Sanity check */ |
4461 | rc = lpfc_idiag_que_param_check( |
4462 | q: phba->sli4_hba.els_wq, index, count); |
4463 | if (rc) |
4464 | goto error_out; |
4465 | idiag.ptr_private = phba->sli4_hba.els_wq; |
4466 | goto pass_check; |
4467 | } |
4468 | /* NVME LS work queue */ |
4469 | if (phba->sli4_hba.nvmels_wq && |
4470 | phba->sli4_hba.nvmels_wq->queue_id == queid) { |
4471 | /* Sanity check */ |
4472 | rc = lpfc_idiag_que_param_check( |
4473 | q: phba->sli4_hba.nvmels_wq, index, count); |
4474 | if (rc) |
4475 | goto error_out; |
4476 | idiag.ptr_private = phba->sli4_hba.nvmels_wq; |
4477 | goto pass_check; |
4478 | } |
4479 | |
4480 | if (phba->sli4_hba.hdwq) { |
4481 | /* FCP/SCSI work queue */ |
4482 | for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { |
4483 | qp = phba->sli4_hba.hdwq[qidx].io_wq; |
4484 | if (qp && qp->queue_id == queid) { |
4485 | /* Sanity check */ |
4486 | rc = lpfc_idiag_que_param_check( |
4487 | q: qp, index, count); |
4488 | if (rc) |
4489 | goto error_out; |
4490 | idiag.ptr_private = qp; |
4491 | goto pass_check; |
4492 | } |
4493 | } |
4494 | } |
4495 | goto error_out; |
4496 | |
4497 | case LPFC_IDIAG_RQ: |
4498 | /* HDR queue */ |
4499 | if (phba->sli4_hba.hdr_rq && |
4500 | phba->sli4_hba.hdr_rq->queue_id == queid) { |
4501 | /* Sanity check */ |
4502 | rc = lpfc_idiag_que_param_check( |
4503 | q: phba->sli4_hba.hdr_rq, index, count); |
4504 | if (rc) |
4505 | goto error_out; |
4506 | idiag.ptr_private = phba->sli4_hba.hdr_rq; |
4507 | goto pass_check; |
4508 | } |
4509 | /* DAT queue */ |
4510 | if (phba->sli4_hba.dat_rq && |
4511 | phba->sli4_hba.dat_rq->queue_id == queid) { |
4512 | /* Sanity check */ |
4513 | rc = lpfc_idiag_que_param_check( |
4514 | q: phba->sli4_hba.dat_rq, index, count); |
4515 | if (rc) |
4516 | goto error_out; |
4517 | idiag.ptr_private = phba->sli4_hba.dat_rq; |
4518 | goto pass_check; |
4519 | } |
4520 | goto error_out; |
4521 | default: |
4522 | goto error_out; |
4523 | } |
4524 | |
4525 | pass_check: |
4526 | |
4527 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { |
4528 | if (count == LPFC_QUE_ACC_BROWSE) |
4529 | idiag.offset.last_rd = index; |
4530 | } |
4531 | |
4532 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || |
4533 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || |
4534 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { |
4535 | /* Additional sanity checks on write operation */ |
4536 | pque = (struct lpfc_queue *)idiag.ptr_private; |
4537 | if (offset > pque->entry_size/sizeof(uint32_t) - 1) |
4538 | goto error_out; |
4539 | pentry = lpfc_sli4_qe(q: pque, idx: index); |
4540 | pentry += offset; |
4541 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) |
4542 | *pentry = value; |
4543 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) |
4544 | *pentry |= value; |
4545 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) |
4546 | *pentry &= ~value; |
4547 | } |
4548 | return nbytes; |
4549 | |
4550 | error_out: |
4551 | /* Clean out command structure on command error out */ |
4552 | memset(&idiag, 0, sizeof(idiag)); |
4553 | return -EINVAL; |
4554 | } |
4555 | |
4556 | /** |
4557 | * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register |
4558 | * @phba: The pointer to hba structure. |
4559 | * @pbuffer: The pointer to the buffer to copy the data to. |
4560 | * @len: The length of bytes to copied. |
4561 | * @drbregid: The id to doorbell registers. |
4562 | * |
4563 | * Description: |
4564 | * This routine reads a doorbell register and copies its content to the |
4565 | * user buffer pointed to by @pbuffer. |
4566 | * |
4567 | * Returns: |
4568 | * This function returns the amount of data that was copied into @pbuffer. |
4569 | **/ |
4570 | static int |
4571 | lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, |
4572 | int len, uint32_t drbregid) |
4573 | { |
4574 | |
4575 | if (!pbuffer) |
4576 | return 0; |
4577 | |
4578 | switch (drbregid) { |
4579 | case LPFC_DRB_EQ: |
4580 | len += scnprintf(buf: pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len, |
4581 | fmt: "EQ-DRB-REG: 0x%08x\n" , |
4582 | readl(addr: phba->sli4_hba.EQDBregaddr)); |
4583 | break; |
4584 | case LPFC_DRB_CQ: |
4585 | len += scnprintf(buf: pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len, |
4586 | fmt: "CQ-DRB-REG: 0x%08x\n" , |
4587 | readl(addr: phba->sli4_hba.CQDBregaddr)); |
4588 | break; |
4589 | case LPFC_DRB_MQ: |
4590 | len += scnprintf(buf: pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, |
4591 | fmt: "MQ-DRB-REG: 0x%08x\n" , |
4592 | readl(addr: phba->sli4_hba.MQDBregaddr)); |
4593 | break; |
4594 | case LPFC_DRB_WQ: |
4595 | len += scnprintf(buf: pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, |
4596 | fmt: "WQ-DRB-REG: 0x%08x\n" , |
4597 | readl(addr: phba->sli4_hba.WQDBregaddr)); |
4598 | break; |
4599 | case LPFC_DRB_RQ: |
4600 | len += scnprintf(buf: pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, |
4601 | fmt: "RQ-DRB-REG: 0x%08x\n" , |
4602 | readl(addr: phba->sli4_hba.RQDBregaddr)); |
4603 | break; |
4604 | default: |
4605 | break; |
4606 | } |
4607 | |
4608 | return len; |
4609 | } |
4610 | |
4611 | /** |
4612 | * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell |
4613 | * @file: The file pointer to read from. |
4614 | * @buf: The buffer to copy the data to. |
4615 | * @nbytes: The number of bytes to read. |
4616 | * @ppos: The position in the file to start reading from. |
4617 | * |
4618 | * Description: |
4619 | * This routine reads data from the @phba device doorbell register according |
4620 | * to the idiag command, and copies to user @buf. Depending on the doorbell |
4621 | * register read command setup, it does either a single doorbell register |
4622 | * read or dump all doorbell registers. |
4623 | * |
4624 | * Returns: |
4625 | * This function returns the amount of data that was read (this could be less |
4626 | * than @nbytes if the end of the file was reached) or a negative error value. |
4627 | **/ |
4628 | static ssize_t |
4629 | lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, |
4630 | loff_t *ppos) |
4631 | { |
4632 | struct lpfc_debug *debug = file->private_data; |
4633 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
4634 | uint32_t drb_reg_id, i; |
4635 | char *pbuffer; |
4636 | int len = 0; |
4637 | |
4638 | /* This is a user read operation */ |
4639 | debug->op = LPFC_IDIAG_OP_RD; |
4640 | |
4641 | if (!debug->buffer) |
4642 | debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); |
4643 | if (!debug->buffer) |
4644 | return 0; |
4645 | pbuffer = debug->buffer; |
4646 | |
4647 | if (*ppos) |
4648 | return 0; |
4649 | |
4650 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) |
4651 | drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; |
4652 | else |
4653 | return 0; |
4654 | |
4655 | if (drb_reg_id == LPFC_DRB_ACC_ALL) |
4656 | for (i = 1; i <= LPFC_DRB_MAX; i++) |
4657 | len = lpfc_idiag_drbacc_read_reg(phba, |
4658 | pbuffer, len, drbregid: i); |
4659 | else |
4660 | len = lpfc_idiag_drbacc_read_reg(phba, |
4661 | pbuffer, len, drbregid: drb_reg_id); |
4662 | |
4663 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
4664 | } |
4665 | |
4666 | /** |
4667 | * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands |
4668 | * @file: The file pointer to read from. |
4669 | * @buf: The buffer to copy the user data from. |
4670 | * @nbytes: The number of bytes to get. |
4671 | * @ppos: The position in the file to start reading from. |
4672 | * |
4673 | * This routine get the debugfs idiag command struct from user space and then |
4674 | * perform the syntax check for port doorbell register read (dump) or write |
4675 | * (set) command accordingly. In the case of port queue read command, it sets |
4676 | * up the command in the idiag command struct for the following debugfs read |
4677 | * operation. In the case of port doorbell register write operation, it |
4678 | * executes the write operation into the port doorbell register accordingly. |
4679 | * |
4680 | * It returns the @nbytges passing in from debugfs user space when successful. |
4681 | * In case of error conditions, it returns proper error code back to the user |
4682 | * space. |
4683 | **/ |
4684 | static ssize_t |
4685 | lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, |
4686 | size_t nbytes, loff_t *ppos) |
4687 | { |
4688 | struct lpfc_debug *debug = file->private_data; |
4689 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
4690 | uint32_t drb_reg_id, value, reg_val = 0; |
4691 | void __iomem *drb_reg; |
4692 | int rc; |
4693 | |
4694 | /* This is a user write operation */ |
4695 | debug->op = LPFC_IDIAG_OP_WR; |
4696 | |
4697 | rc = lpfc_idiag_cmd_get(buf, nbytes, idiag_cmd: &idiag.cmd); |
4698 | if (rc < 0) |
4699 | return rc; |
4700 | |
4701 | /* Sanity check on command line arguments */ |
4702 | drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; |
4703 | value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; |
4704 | |
4705 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || |
4706 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || |
4707 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { |
4708 | if (rc != LPFC_DRB_ACC_WR_CMD_ARG) |
4709 | goto error_out; |
4710 | if (drb_reg_id > LPFC_DRB_MAX) |
4711 | goto error_out; |
4712 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { |
4713 | if (rc != LPFC_DRB_ACC_RD_CMD_ARG) |
4714 | goto error_out; |
4715 | if ((drb_reg_id > LPFC_DRB_MAX) && |
4716 | (drb_reg_id != LPFC_DRB_ACC_ALL)) |
4717 | goto error_out; |
4718 | } else |
4719 | goto error_out; |
4720 | |
4721 | /* Perform the write access operation */ |
4722 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || |
4723 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || |
4724 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { |
4725 | switch (drb_reg_id) { |
4726 | case LPFC_DRB_EQ: |
4727 | drb_reg = phba->sli4_hba.EQDBregaddr; |
4728 | break; |
4729 | case LPFC_DRB_CQ: |
4730 | drb_reg = phba->sli4_hba.CQDBregaddr; |
4731 | break; |
4732 | case LPFC_DRB_MQ: |
4733 | drb_reg = phba->sli4_hba.MQDBregaddr; |
4734 | break; |
4735 | case LPFC_DRB_WQ: |
4736 | drb_reg = phba->sli4_hba.WQDBregaddr; |
4737 | break; |
4738 | case LPFC_DRB_RQ: |
4739 | drb_reg = phba->sli4_hba.RQDBregaddr; |
4740 | break; |
4741 | default: |
4742 | goto error_out; |
4743 | } |
4744 | |
4745 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) |
4746 | reg_val = value; |
4747 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { |
4748 | reg_val = readl(addr: drb_reg); |
4749 | reg_val |= value; |
4750 | } |
4751 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { |
4752 | reg_val = readl(addr: drb_reg); |
4753 | reg_val &= ~value; |
4754 | } |
4755 | writel(val: reg_val, addr: drb_reg); |
4756 | readl(addr: drb_reg); /* flush */ |
4757 | } |
4758 | return nbytes; |
4759 | |
4760 | error_out: |
4761 | /* Clean out command structure on command error out */ |
4762 | memset(&idiag, 0, sizeof(idiag)); |
4763 | return -EINVAL; |
4764 | } |
4765 | |
4766 | /** |
4767 | * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers |
4768 | * @phba: The pointer to hba structure. |
4769 | * @pbuffer: The pointer to the buffer to copy the data to. |
4770 | * @len: The length of bytes to copied. |
4771 | * @ctlregid: The id to doorbell registers. |
4772 | * |
4773 | * Description: |
4774 | * This routine reads a control register and copies its content to the |
4775 | * user buffer pointed to by @pbuffer. |
4776 | * |
4777 | * Returns: |
4778 | * This function returns the amount of data that was copied into @pbuffer. |
4779 | **/ |
4780 | static int |
4781 | lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, |
4782 | int len, uint32_t ctlregid) |
4783 | { |
4784 | |
4785 | if (!pbuffer) |
4786 | return 0; |
4787 | |
4788 | switch (ctlregid) { |
4789 | case LPFC_CTL_PORT_SEM: |
4790 | len += scnprintf(buf: pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, |
4791 | fmt: "Port SemReg: 0x%08x\n" , |
4792 | readl(addr: phba->sli4_hba.conf_regs_memmap_p + |
4793 | LPFC_CTL_PORT_SEM_OFFSET)); |
4794 | break; |
4795 | case LPFC_CTL_PORT_STA: |
4796 | len += scnprintf(buf: pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, |
4797 | fmt: "Port StaReg: 0x%08x\n" , |
4798 | readl(addr: phba->sli4_hba.conf_regs_memmap_p + |
4799 | LPFC_CTL_PORT_STA_OFFSET)); |
4800 | break; |
4801 | case LPFC_CTL_PORT_CTL: |
4802 | len += scnprintf(buf: pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, |
4803 | fmt: "Port CtlReg: 0x%08x\n" , |
4804 | readl(addr: phba->sli4_hba.conf_regs_memmap_p + |
4805 | LPFC_CTL_PORT_CTL_OFFSET)); |
4806 | break; |
4807 | case LPFC_CTL_PORT_ER1: |
4808 | len += scnprintf(buf: pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, |
4809 | fmt: "Port Er1Reg: 0x%08x\n" , |
4810 | readl(addr: phba->sli4_hba.conf_regs_memmap_p + |
4811 | LPFC_CTL_PORT_ER1_OFFSET)); |
4812 | break; |
4813 | case LPFC_CTL_PORT_ER2: |
4814 | len += scnprintf(buf: pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, |
4815 | fmt: "Port Er2Reg: 0x%08x\n" , |
4816 | readl(addr: phba->sli4_hba.conf_regs_memmap_p + |
4817 | LPFC_CTL_PORT_ER2_OFFSET)); |
4818 | break; |
4819 | case LPFC_CTL_PDEV_CTL: |
4820 | len += scnprintf(buf: pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, |
4821 | fmt: "PDev CtlReg: 0x%08x\n" , |
4822 | readl(addr: phba->sli4_hba.conf_regs_memmap_p + |
4823 | LPFC_CTL_PDEV_CTL_OFFSET)); |
4824 | break; |
4825 | default: |
4826 | break; |
4827 | } |
4828 | return len; |
4829 | } |
4830 | |
4831 | /** |
4832 | * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register |
4833 | * @file: The file pointer to read from. |
4834 | * @buf: The buffer to copy the data to. |
4835 | * @nbytes: The number of bytes to read. |
4836 | * @ppos: The position in the file to start reading from. |
4837 | * |
4838 | * Description: |
4839 | * This routine reads data from the @phba port and device registers according |
4840 | * to the idiag command, and copies to user @buf. |
4841 | * |
4842 | * Returns: |
4843 | * This function returns the amount of data that was read (this could be less |
4844 | * than @nbytes if the end of the file was reached) or a negative error value. |
4845 | **/ |
4846 | static ssize_t |
4847 | lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, |
4848 | loff_t *ppos) |
4849 | { |
4850 | struct lpfc_debug *debug = file->private_data; |
4851 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
4852 | uint32_t ctl_reg_id, i; |
4853 | char *pbuffer; |
4854 | int len = 0; |
4855 | |
4856 | /* This is a user read operation */ |
4857 | debug->op = LPFC_IDIAG_OP_RD; |
4858 | |
4859 | if (!debug->buffer) |
4860 | debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); |
4861 | if (!debug->buffer) |
4862 | return 0; |
4863 | pbuffer = debug->buffer; |
4864 | |
4865 | if (*ppos) |
4866 | return 0; |
4867 | |
4868 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) |
4869 | ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; |
4870 | else |
4871 | return 0; |
4872 | |
4873 | if (ctl_reg_id == LPFC_CTL_ACC_ALL) |
4874 | for (i = 1; i <= LPFC_CTL_MAX; i++) |
4875 | len = lpfc_idiag_ctlacc_read_reg(phba, |
4876 | pbuffer, len, ctlregid: i); |
4877 | else |
4878 | len = lpfc_idiag_ctlacc_read_reg(phba, |
4879 | pbuffer, len, ctlregid: ctl_reg_id); |
4880 | |
4881 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
4882 | } |
4883 | |
4884 | /** |
4885 | * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands |
4886 | * @file: The file pointer to read from. |
4887 | * @buf: The buffer to copy the user data from. |
4888 | * @nbytes: The number of bytes to get. |
4889 | * @ppos: The position in the file to start reading from. |
4890 | * |
4891 | * This routine get the debugfs idiag command struct from user space and then |
4892 | * perform the syntax check for port and device control register read (dump) |
4893 | * or write (set) command accordingly. |
4894 | * |
4895 | * It returns the @nbytges passing in from debugfs user space when successful. |
4896 | * In case of error conditions, it returns proper error code back to the user |
4897 | * space. |
4898 | **/ |
4899 | static ssize_t |
4900 | lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, |
4901 | size_t nbytes, loff_t *ppos) |
4902 | { |
4903 | struct lpfc_debug *debug = file->private_data; |
4904 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
4905 | uint32_t ctl_reg_id, value, reg_val = 0; |
4906 | void __iomem *ctl_reg; |
4907 | int rc; |
4908 | |
4909 | /* This is a user write operation */ |
4910 | debug->op = LPFC_IDIAG_OP_WR; |
4911 | |
4912 | rc = lpfc_idiag_cmd_get(buf, nbytes, idiag_cmd: &idiag.cmd); |
4913 | if (rc < 0) |
4914 | return rc; |
4915 | |
4916 | /* Sanity check on command line arguments */ |
4917 | ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; |
4918 | value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; |
4919 | |
4920 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || |
4921 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || |
4922 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { |
4923 | if (rc != LPFC_CTL_ACC_WR_CMD_ARG) |
4924 | goto error_out; |
4925 | if (ctl_reg_id > LPFC_CTL_MAX) |
4926 | goto error_out; |
4927 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { |
4928 | if (rc != LPFC_CTL_ACC_RD_CMD_ARG) |
4929 | goto error_out; |
4930 | if ((ctl_reg_id > LPFC_CTL_MAX) && |
4931 | (ctl_reg_id != LPFC_CTL_ACC_ALL)) |
4932 | goto error_out; |
4933 | } else |
4934 | goto error_out; |
4935 | |
4936 | /* Perform the write access operation */ |
4937 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || |
4938 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || |
4939 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { |
4940 | switch (ctl_reg_id) { |
4941 | case LPFC_CTL_PORT_SEM: |
4942 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + |
4943 | LPFC_CTL_PORT_SEM_OFFSET; |
4944 | break; |
4945 | case LPFC_CTL_PORT_STA: |
4946 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + |
4947 | LPFC_CTL_PORT_STA_OFFSET; |
4948 | break; |
4949 | case LPFC_CTL_PORT_CTL: |
4950 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + |
4951 | LPFC_CTL_PORT_CTL_OFFSET; |
4952 | break; |
4953 | case LPFC_CTL_PORT_ER1: |
4954 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + |
4955 | LPFC_CTL_PORT_ER1_OFFSET; |
4956 | break; |
4957 | case LPFC_CTL_PORT_ER2: |
4958 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + |
4959 | LPFC_CTL_PORT_ER2_OFFSET; |
4960 | break; |
4961 | case LPFC_CTL_PDEV_CTL: |
4962 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + |
4963 | LPFC_CTL_PDEV_CTL_OFFSET; |
4964 | break; |
4965 | default: |
4966 | goto error_out; |
4967 | } |
4968 | |
4969 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) |
4970 | reg_val = value; |
4971 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { |
4972 | reg_val = readl(addr: ctl_reg); |
4973 | reg_val |= value; |
4974 | } |
4975 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { |
4976 | reg_val = readl(addr: ctl_reg); |
4977 | reg_val &= ~value; |
4978 | } |
4979 | writel(val: reg_val, addr: ctl_reg); |
4980 | readl(addr: ctl_reg); /* flush */ |
4981 | } |
4982 | return nbytes; |
4983 | |
4984 | error_out: |
4985 | /* Clean out command structure on command error out */ |
4986 | memset(&idiag, 0, sizeof(idiag)); |
4987 | return -EINVAL; |
4988 | } |
4989 | |
4990 | /** |
4991 | * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup |
4992 | * @phba: Pointer to HBA context object. |
4993 | * @pbuffer: Pointer to data buffer. |
4994 | * |
4995 | * Description: |
4996 | * This routine gets the driver mailbox access debugfs setup information. |
4997 | * |
4998 | * Returns: |
4999 | * This function returns the amount of data that was read (this could be less |
5000 | * than @nbytes if the end of the file was reached) or a negative error value. |
5001 | **/ |
5002 | static int |
5003 | lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) |
5004 | { |
5005 | uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; |
5006 | int len = 0; |
5007 | |
5008 | mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; |
5009 | mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; |
5010 | mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; |
5011 | mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; |
5012 | |
5013 | len += scnprintf(buf: pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, |
5014 | fmt: "mbx_dump_map: 0x%08x\n" , mbx_dump_map); |
5015 | len += scnprintf(buf: pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, |
5016 | fmt: "mbx_dump_cnt: %04d\n" , mbx_dump_cnt); |
5017 | len += scnprintf(buf: pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, |
5018 | fmt: "mbx_word_cnt: %04d\n" , mbx_word_cnt); |
5019 | len += scnprintf(buf: pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, |
5020 | fmt: "mbx_mbox_cmd: 0x%02x\n" , mbx_mbox_cmd); |
5021 | |
5022 | return len; |
5023 | } |
5024 | |
5025 | /** |
5026 | * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access |
5027 | * @file: The file pointer to read from. |
5028 | * @buf: The buffer to copy the data to. |
5029 | * @nbytes: The number of bytes to read. |
5030 | * @ppos: The position in the file to start reading from. |
5031 | * |
5032 | * Description: |
5033 | * This routine reads data from the @phba driver mailbox access debugfs setup |
5034 | * information. |
5035 | * |
5036 | * Returns: |
5037 | * This function returns the amount of data that was read (this could be less |
5038 | * than @nbytes if the end of the file was reached) or a negative error value. |
5039 | **/ |
5040 | static ssize_t |
5041 | lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, |
5042 | loff_t *ppos) |
5043 | { |
5044 | struct lpfc_debug *debug = file->private_data; |
5045 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
5046 | char *pbuffer; |
5047 | int len = 0; |
5048 | |
5049 | /* This is a user read operation */ |
5050 | debug->op = LPFC_IDIAG_OP_RD; |
5051 | |
5052 | if (!debug->buffer) |
5053 | debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); |
5054 | if (!debug->buffer) |
5055 | return 0; |
5056 | pbuffer = debug->buffer; |
5057 | |
5058 | if (*ppos) |
5059 | return 0; |
5060 | |
5061 | if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && |
5062 | (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) |
5063 | return 0; |
5064 | |
5065 | len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); |
5066 | |
5067 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
5068 | } |
5069 | |
5070 | /** |
5071 | * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands |
5072 | * @file: The file pointer to read from. |
5073 | * @buf: The buffer to copy the user data from. |
5074 | * @nbytes: The number of bytes to get. |
5075 | * @ppos: The position in the file to start reading from. |
5076 | * |
5077 | * This routine get the debugfs idiag command struct from user space and then |
5078 | * perform the syntax check for driver mailbox command (dump) and sets up the |
5079 | * necessary states in the idiag command struct accordingly. |
5080 | * |
5081 | * It returns the @nbytges passing in from debugfs user space when successful. |
5082 | * In case of error conditions, it returns proper error code back to the user |
5083 | * space. |
5084 | **/ |
5085 | static ssize_t |
5086 | lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, |
5087 | size_t nbytes, loff_t *ppos) |
5088 | { |
5089 | struct lpfc_debug *debug = file->private_data; |
5090 | uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; |
5091 | int rc; |
5092 | |
5093 | /* This is a user write operation */ |
5094 | debug->op = LPFC_IDIAG_OP_WR; |
5095 | |
5096 | rc = lpfc_idiag_cmd_get(buf, nbytes, idiag_cmd: &idiag.cmd); |
5097 | if (rc < 0) |
5098 | return rc; |
5099 | |
5100 | /* Sanity check on command line arguments */ |
5101 | mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; |
5102 | mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; |
5103 | mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; |
5104 | mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; |
5105 | |
5106 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { |
5107 | if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) |
5108 | goto error_out; |
5109 | if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && |
5110 | (mbx_dump_map != LPFC_MBX_DMP_ALL)) |
5111 | goto error_out; |
5112 | if (mbx_word_cnt > sizeof(MAILBOX_t)) |
5113 | goto error_out; |
5114 | } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { |
5115 | if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) |
5116 | goto error_out; |
5117 | if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && |
5118 | (mbx_dump_map != LPFC_MBX_DMP_ALL)) |
5119 | goto error_out; |
5120 | if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) |
5121 | goto error_out; |
5122 | if (mbx_mbox_cmd != 0x9b) |
5123 | goto error_out; |
5124 | } else |
5125 | goto error_out; |
5126 | |
5127 | if (mbx_word_cnt == 0) |
5128 | goto error_out; |
5129 | if (rc != LPFC_MBX_DMP_ARG) |
5130 | goto error_out; |
5131 | if (mbx_mbox_cmd & ~0xff) |
5132 | goto error_out; |
5133 | |
5134 | /* condition for stop mailbox dump */ |
5135 | if (mbx_dump_cnt == 0) |
5136 | goto reset_out; |
5137 | |
5138 | return nbytes; |
5139 | |
5140 | reset_out: |
5141 | /* Clean out command structure on command error out */ |
5142 | memset(&idiag, 0, sizeof(idiag)); |
5143 | return nbytes; |
5144 | |
5145 | error_out: |
5146 | /* Clean out command structure on command error out */ |
5147 | memset(&idiag, 0, sizeof(idiag)); |
5148 | return -EINVAL; |
5149 | } |
5150 | |
5151 | /** |
5152 | * lpfc_idiag_extacc_avail_get - get the available extents information |
5153 | * @phba: pointer to lpfc hba data structure. |
5154 | * @pbuffer: pointer to internal buffer. |
5155 | * @len: length into the internal buffer data has been copied. |
5156 | * |
5157 | * Description: |
5158 | * This routine is to get the available extent information. |
5159 | * |
5160 | * Returns: |
5161 | * overall length of the data read into the internal buffer. |
5162 | **/ |
5163 | static int |
5164 | lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) |
5165 | { |
5166 | uint16_t ext_cnt = 0, ext_size = 0; |
5167 | |
5168 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5169 | fmt: "\nAvailable Extents Information:\n" ); |
5170 | |
5171 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5172 | fmt: "\tPort Available VPI extents: " ); |
5173 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, |
5174 | &ext_cnt, &ext_size); |
5175 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5176 | fmt: "Count %3d, Size %3d\n" , ext_cnt, ext_size); |
5177 | |
5178 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5179 | fmt: "\tPort Available VFI extents: " ); |
5180 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, |
5181 | &ext_cnt, &ext_size); |
5182 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5183 | fmt: "Count %3d, Size %3d\n" , ext_cnt, ext_size); |
5184 | |
5185 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5186 | fmt: "\tPort Available RPI extents: " ); |
5187 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, |
5188 | &ext_cnt, &ext_size); |
5189 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5190 | fmt: "Count %3d, Size %3d\n" , ext_cnt, ext_size); |
5191 | |
5192 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5193 | fmt: "\tPort Available XRI extents: " ); |
5194 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, |
5195 | &ext_cnt, &ext_size); |
5196 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5197 | fmt: "Count %3d, Size %3d\n" , ext_cnt, ext_size); |
5198 | |
5199 | return len; |
5200 | } |
5201 | |
5202 | /** |
5203 | * lpfc_idiag_extacc_alloc_get - get the allocated extents information |
5204 | * @phba: pointer to lpfc hba data structure. |
5205 | * @pbuffer: pointer to internal buffer. |
5206 | * @len: length into the internal buffer data has been copied. |
5207 | * |
5208 | * Description: |
5209 | * This routine is to get the allocated extent information. |
5210 | * |
5211 | * Returns: |
5212 | * overall length of the data read into the internal buffer. |
5213 | **/ |
5214 | static int |
5215 | lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) |
5216 | { |
5217 | uint16_t ext_cnt, ext_size; |
5218 | int rc; |
5219 | |
5220 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5221 | fmt: "\nAllocated Extents Information:\n" ); |
5222 | |
5223 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5224 | fmt: "\tHost Allocated VPI extents: " ); |
5225 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, |
5226 | &ext_cnt, &ext_size); |
5227 | if (!rc) |
5228 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5229 | fmt: "Port %d Extent %3d, Size %3d\n" , |
5230 | phba->brd_no, ext_cnt, ext_size); |
5231 | else |
5232 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5233 | fmt: "N/A\n" ); |
5234 | |
5235 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5236 | fmt: "\tHost Allocated VFI extents: " ); |
5237 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, |
5238 | &ext_cnt, &ext_size); |
5239 | if (!rc) |
5240 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5241 | fmt: "Port %d Extent %3d, Size %3d\n" , |
5242 | phba->brd_no, ext_cnt, ext_size); |
5243 | else |
5244 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5245 | fmt: "N/A\n" ); |
5246 | |
5247 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5248 | fmt: "\tHost Allocated RPI extents: " ); |
5249 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, |
5250 | &ext_cnt, &ext_size); |
5251 | if (!rc) |
5252 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5253 | fmt: "Port %d Extent %3d, Size %3d\n" , |
5254 | phba->brd_no, ext_cnt, ext_size); |
5255 | else |
5256 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5257 | fmt: "N/A\n" ); |
5258 | |
5259 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5260 | fmt: "\tHost Allocated XRI extents: " ); |
5261 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, |
5262 | &ext_cnt, &ext_size); |
5263 | if (!rc) |
5264 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5265 | fmt: "Port %d Extent %3d, Size %3d\n" , |
5266 | phba->brd_no, ext_cnt, ext_size); |
5267 | else |
5268 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5269 | fmt: "N/A\n" ); |
5270 | |
5271 | return len; |
5272 | } |
5273 | |
5274 | /** |
5275 | * lpfc_idiag_extacc_drivr_get - get driver extent information |
5276 | * @phba: pointer to lpfc hba data structure. |
5277 | * @pbuffer: pointer to internal buffer. |
5278 | * @len: length into the internal buffer data has been copied. |
5279 | * |
5280 | * Description: |
5281 | * This routine is to get the driver extent information. |
5282 | * |
5283 | * Returns: |
5284 | * overall length of the data read into the internal buffer. |
5285 | **/ |
5286 | static int |
5287 | lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) |
5288 | { |
5289 | struct lpfc_rsrc_blks *rsrc_blks; |
5290 | int index; |
5291 | |
5292 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5293 | fmt: "\nDriver Extents Information:\n" ); |
5294 | |
5295 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5296 | fmt: "\tVPI extents:\n" ); |
5297 | index = 0; |
5298 | list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { |
5299 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5300 | fmt: "\t\tBlock %3d: Start %4d, Count %4d\n" , |
5301 | index, rsrc_blks->rsrc_start, |
5302 | rsrc_blks->rsrc_size); |
5303 | index++; |
5304 | } |
5305 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5306 | fmt: "\tVFI extents:\n" ); |
5307 | index = 0; |
5308 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, |
5309 | list) { |
5310 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5311 | fmt: "\t\tBlock %3d: Start %4d, Count %4d\n" , |
5312 | index, rsrc_blks->rsrc_start, |
5313 | rsrc_blks->rsrc_size); |
5314 | index++; |
5315 | } |
5316 | |
5317 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5318 | fmt: "\tRPI extents:\n" ); |
5319 | index = 0; |
5320 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, |
5321 | list) { |
5322 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5323 | fmt: "\t\tBlock %3d: Start %4d, Count %4d\n" , |
5324 | index, rsrc_blks->rsrc_start, |
5325 | rsrc_blks->rsrc_size); |
5326 | index++; |
5327 | } |
5328 | |
5329 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5330 | fmt: "\tXRI extents:\n" ); |
5331 | index = 0; |
5332 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, |
5333 | list) { |
5334 | len += scnprintf(buf: pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, |
5335 | fmt: "\t\tBlock %3d: Start %4d, Count %4d\n" , |
5336 | index, rsrc_blks->rsrc_start, |
5337 | rsrc_blks->rsrc_size); |
5338 | index++; |
5339 | } |
5340 | |
5341 | return len; |
5342 | } |
5343 | |
5344 | /** |
5345 | * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands |
5346 | * @file: The file pointer to read from. |
5347 | * @buf: The buffer to copy the user data from. |
5348 | * @nbytes: The number of bytes to get. |
5349 | * @ppos: The position in the file to start reading from. |
5350 | * |
5351 | * This routine get the debugfs idiag command struct from user space and then |
5352 | * perform the syntax check for extent information access commands and sets |
5353 | * up the necessary states in the idiag command struct accordingly. |
5354 | * |
5355 | * It returns the @nbytges passing in from debugfs user space when successful. |
5356 | * In case of error conditions, it returns proper error code back to the user |
5357 | * space. |
5358 | **/ |
5359 | static ssize_t |
5360 | lpfc_idiag_extacc_write(struct file *file, const char __user *buf, |
5361 | size_t nbytes, loff_t *ppos) |
5362 | { |
5363 | struct lpfc_debug *debug = file->private_data; |
5364 | uint32_t ext_map; |
5365 | int rc; |
5366 | |
5367 | /* This is a user write operation */ |
5368 | debug->op = LPFC_IDIAG_OP_WR; |
5369 | |
5370 | rc = lpfc_idiag_cmd_get(buf, nbytes, idiag_cmd: &idiag.cmd); |
5371 | if (rc < 0) |
5372 | return rc; |
5373 | |
5374 | ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; |
5375 | |
5376 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) |
5377 | goto error_out; |
5378 | if (rc != LPFC_EXT_ACC_CMD_ARG) |
5379 | goto error_out; |
5380 | if (!(ext_map & LPFC_EXT_ACC_ALL)) |
5381 | goto error_out; |
5382 | |
5383 | return nbytes; |
5384 | error_out: |
5385 | /* Clean out command structure on command error out */ |
5386 | memset(&idiag, 0, sizeof(idiag)); |
5387 | return -EINVAL; |
5388 | } |
5389 | |
5390 | /** |
5391 | * lpfc_idiag_extacc_read - idiag debugfs read access to extent information |
5392 | * @file: The file pointer to read from. |
5393 | * @buf: The buffer to copy the data to. |
5394 | * @nbytes: The number of bytes to read. |
5395 | * @ppos: The position in the file to start reading from. |
5396 | * |
5397 | * Description: |
5398 | * This routine reads data from the proper extent information according to |
5399 | * the idiag command, and copies to user @buf. |
5400 | * |
5401 | * Returns: |
5402 | * This function returns the amount of data that was read (this could be less |
5403 | * than @nbytes if the end of the file was reached) or a negative error value. |
5404 | **/ |
5405 | static ssize_t |
5406 | lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, |
5407 | loff_t *ppos) |
5408 | { |
5409 | struct lpfc_debug *debug = file->private_data; |
5410 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
5411 | char *pbuffer; |
5412 | uint32_t ext_map; |
5413 | int len = 0; |
5414 | |
5415 | /* This is a user read operation */ |
5416 | debug->op = LPFC_IDIAG_OP_RD; |
5417 | |
5418 | if (!debug->buffer) |
5419 | debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); |
5420 | if (!debug->buffer) |
5421 | return 0; |
5422 | pbuffer = debug->buffer; |
5423 | if (*ppos) |
5424 | return 0; |
5425 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) |
5426 | return 0; |
5427 | |
5428 | ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; |
5429 | if (ext_map & LPFC_EXT_ACC_AVAIL) |
5430 | len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); |
5431 | if (ext_map & LPFC_EXT_ACC_ALLOC) |
5432 | len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); |
5433 | if (ext_map & LPFC_EXT_ACC_DRIVR) |
5434 | len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); |
5435 | |
5436 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: pbuffer, available: len); |
5437 | } |
5438 | |
5439 | static int |
5440 | lpfc_cgn_buffer_open(struct inode *inode, struct file *file) |
5441 | { |
5442 | struct lpfc_debug *debug; |
5443 | int rc = -ENOMEM; |
5444 | |
5445 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
5446 | if (!debug) |
5447 | goto out; |
5448 | |
5449 | debug->buffer = vmalloc(LPFC_CGN_BUF_SIZE); |
5450 | if (!debug->buffer) { |
5451 | kfree(objp: debug); |
5452 | goto out; |
5453 | } |
5454 | |
5455 | debug->i_private = inode->i_private; |
5456 | file->private_data = debug; |
5457 | |
5458 | rc = 0; |
5459 | out: |
5460 | return rc; |
5461 | } |
5462 | |
5463 | static ssize_t |
5464 | lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes, |
5465 | loff_t *ppos) |
5466 | { |
5467 | struct lpfc_debug *debug = file->private_data; |
5468 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
5469 | char *buffer = debug->buffer; |
5470 | uint32_t *ptr; |
5471 | int cnt, len = 0; |
5472 | |
5473 | if (!phba->sli4_hba.pc_sli4_params.mi_ver || !phba->cgn_i) { |
5474 | len += scnprintf(buf: buffer + len, LPFC_CGN_BUF_SIZE - len, |
5475 | fmt: "Congestion Mgmt is not supported\n" ); |
5476 | goto out; |
5477 | } |
5478 | ptr = (uint32_t *)phba->cgn_i->virt; |
5479 | len += scnprintf(buf: buffer + len, LPFC_CGN_BUF_SIZE - len, |
5480 | fmt: "Congestion Buffer Header\n" ); |
5481 | /* Dump the first 32 bytes */ |
5482 | cnt = 32; |
5483 | len += scnprintf(buf: buffer + len, LPFC_CGN_BUF_SIZE - len, |
5484 | fmt: "000: %08x %08x %08x %08x %08x %08x %08x %08x\n" , |
5485 | *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3), |
5486 | *(ptr + 4), *(ptr + 5), *(ptr + 6), *(ptr + 7)); |
5487 | ptr += 8; |
5488 | len += scnprintf(buf: buffer + len, LPFC_CGN_BUF_SIZE - len, |
5489 | fmt: "Congestion Buffer Data\n" ); |
5490 | while (cnt < sizeof(struct lpfc_cgn_info)) { |
5491 | if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { |
5492 | len += scnprintf(buf: buffer + len, LPFC_CGN_BUF_SIZE - len, |
5493 | fmt: "Truncated . . .\n" ); |
5494 | goto out; |
5495 | } |
5496 | len += scnprintf(buf: buffer + len, LPFC_CGN_BUF_SIZE - len, |
5497 | fmt: "%03x: %08x %08x %08x %08x " |
5498 | "%08x %08x %08x %08x\n" , |
5499 | cnt, *ptr, *(ptr + 1), *(ptr + 2), |
5500 | *(ptr + 3), *(ptr + 4), *(ptr + 5), |
5501 | *(ptr + 6), *(ptr + 7)); |
5502 | cnt += 32; |
5503 | ptr += 8; |
5504 | } |
5505 | if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) { |
5506 | len += scnprintf(buf: buffer + len, LPFC_CGN_BUF_SIZE - len, |
5507 | fmt: "Truncated . . .\n" ); |
5508 | goto out; |
5509 | } |
5510 | len += scnprintf(buf: buffer + len, LPFC_CGN_BUF_SIZE - len, |
5511 | fmt: "Parameter Data\n" ); |
5512 | ptr = (uint32_t *)&phba->cgn_p; |
5513 | len += scnprintf(buf: buffer + len, LPFC_CGN_BUF_SIZE - len, |
5514 | fmt: "%08x %08x %08x %08x\n" , |
5515 | *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3)); |
5516 | out: |
5517 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: buffer, available: len); |
5518 | } |
5519 | |
5520 | static int |
5521 | lpfc_cgn_buffer_release(struct inode *inode, struct file *file) |
5522 | { |
5523 | struct lpfc_debug *debug = file->private_data; |
5524 | |
5525 | vfree(addr: debug->buffer); |
5526 | kfree(objp: debug); |
5527 | |
5528 | return 0; |
5529 | } |
5530 | |
5531 | static int |
5532 | lpfc_rx_monitor_open(struct inode *inode, struct file *file) |
5533 | { |
5534 | struct lpfc_rx_monitor_debug *debug; |
5535 | int rc = -ENOMEM; |
5536 | |
5537 | debug = kmalloc(size: sizeof(*debug), GFP_KERNEL); |
5538 | if (!debug) |
5539 | goto out; |
5540 | |
5541 | debug->buffer = vmalloc(MAX_DEBUGFS_RX_INFO_SIZE); |
5542 | if (!debug->buffer) { |
5543 | kfree(objp: debug); |
5544 | goto out; |
5545 | } |
5546 | |
5547 | debug->i_private = inode->i_private; |
5548 | file->private_data = debug; |
5549 | |
5550 | rc = 0; |
5551 | out: |
5552 | return rc; |
5553 | } |
5554 | |
5555 | static ssize_t |
5556 | lpfc_rx_monitor_read(struct file *file, char __user *buf, size_t nbytes, |
5557 | loff_t *ppos) |
5558 | { |
5559 | struct lpfc_rx_monitor_debug *debug = file->private_data; |
5560 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; |
5561 | char *buffer = debug->buffer; |
5562 | |
5563 | if (!phba->rx_monitor) { |
5564 | scnprintf(buf: buffer, MAX_DEBUGFS_RX_INFO_SIZE, |
5565 | fmt: "Rx Monitor Info is empty.\n" ); |
5566 | } else { |
5567 | lpfc_rx_monitor_report(phba, rx_monitor: phba->rx_monitor, buf: buffer, |
5568 | MAX_DEBUGFS_RX_INFO_SIZE, |
5569 | LPFC_MAX_RXMONITOR_ENTRY); |
5570 | } |
5571 | |
5572 | return simple_read_from_buffer(to: buf, count: nbytes, ppos, from: buffer, |
5573 | strlen(buffer)); |
5574 | } |
5575 | |
5576 | static int |
5577 | lpfc_rx_monitor_release(struct inode *inode, struct file *file) |
5578 | { |
5579 | struct lpfc_rx_monitor_debug *debug = file->private_data; |
5580 | |
5581 | vfree(addr: debug->buffer); |
5582 | kfree(objp: debug); |
5583 | |
5584 | return 0; |
5585 | } |
5586 | |
5587 | #undef lpfc_debugfs_op_disc_trc |
5588 | static const struct file_operations lpfc_debugfs_op_disc_trc = { |
5589 | .owner = THIS_MODULE, |
5590 | .open = lpfc_debugfs_disc_trc_open, |
5591 | .llseek = lpfc_debugfs_lseek, |
5592 | .read = lpfc_debugfs_read, |
5593 | .release = lpfc_debugfs_release, |
5594 | }; |
5595 | |
5596 | #undef lpfc_debugfs_op_nodelist |
5597 | static const struct file_operations lpfc_debugfs_op_nodelist = { |
5598 | .owner = THIS_MODULE, |
5599 | .open = lpfc_debugfs_nodelist_open, |
5600 | .llseek = lpfc_debugfs_lseek, |
5601 | .read = lpfc_debugfs_read, |
5602 | .release = lpfc_debugfs_release, |
5603 | }; |
5604 | |
5605 | #undef lpfc_debugfs_op_multixripools |
5606 | static const struct file_operations lpfc_debugfs_op_multixripools = { |
5607 | .owner = THIS_MODULE, |
5608 | .open = lpfc_debugfs_multixripools_open, |
5609 | .llseek = lpfc_debugfs_lseek, |
5610 | .read = lpfc_debugfs_read, |
5611 | .write = lpfc_debugfs_multixripools_write, |
5612 | .release = lpfc_debugfs_release, |
5613 | }; |
5614 | |
5615 | #undef lpfc_debugfs_op_hbqinfo |
5616 | static const struct file_operations lpfc_debugfs_op_hbqinfo = { |
5617 | .owner = THIS_MODULE, |
5618 | .open = lpfc_debugfs_hbqinfo_open, |
5619 | .llseek = lpfc_debugfs_lseek, |
5620 | .read = lpfc_debugfs_read, |
5621 | .release = lpfc_debugfs_release, |
5622 | }; |
5623 | |
5624 | #ifdef LPFC_HDWQ_LOCK_STAT |
5625 | #undef lpfc_debugfs_op_lockstat |
5626 | static const struct file_operations lpfc_debugfs_op_lockstat = { |
5627 | .owner = THIS_MODULE, |
5628 | .open = lpfc_debugfs_lockstat_open, |
5629 | .llseek = lpfc_debugfs_lseek, |
5630 | .read = lpfc_debugfs_read, |
5631 | .write = lpfc_debugfs_lockstat_write, |
5632 | .release = lpfc_debugfs_release, |
5633 | }; |
5634 | #endif |
5635 | |
5636 | #undef lpfc_debugfs_ras_log |
5637 | static const struct file_operations lpfc_debugfs_ras_log = { |
5638 | .owner = THIS_MODULE, |
5639 | .open = lpfc_debugfs_ras_log_open, |
5640 | .llseek = lpfc_debugfs_lseek, |
5641 | .read = lpfc_debugfs_read, |
5642 | .release = lpfc_debugfs_ras_log_release, |
5643 | }; |
5644 | |
5645 | #undef lpfc_debugfs_op_dumpHBASlim |
5646 | static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { |
5647 | .owner = THIS_MODULE, |
5648 | .open = lpfc_debugfs_dumpHBASlim_open, |
5649 | .llseek = lpfc_debugfs_lseek, |
5650 | .read = lpfc_debugfs_read, |
5651 | .release = lpfc_debugfs_release, |
5652 | }; |
5653 | |
5654 | #undef lpfc_debugfs_op_dumpHostSlim |
5655 | static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { |
5656 | .owner = THIS_MODULE, |
5657 | .open = lpfc_debugfs_dumpHostSlim_open, |
5658 | .llseek = lpfc_debugfs_lseek, |
5659 | .read = lpfc_debugfs_read, |
5660 | .release = lpfc_debugfs_release, |
5661 | }; |
5662 | |
5663 | #undef lpfc_debugfs_op_nvmestat |
5664 | static const struct file_operations lpfc_debugfs_op_nvmestat = { |
5665 | .owner = THIS_MODULE, |
5666 | .open = lpfc_debugfs_nvmestat_open, |
5667 | .llseek = lpfc_debugfs_lseek, |
5668 | .read = lpfc_debugfs_read, |
5669 | .write = lpfc_debugfs_nvmestat_write, |
5670 | .release = lpfc_debugfs_release, |
5671 | }; |
5672 | |
5673 | #undef lpfc_debugfs_op_scsistat |
5674 | static const struct file_operations lpfc_debugfs_op_scsistat = { |
5675 | .owner = THIS_MODULE, |
5676 | .open = lpfc_debugfs_scsistat_open, |
5677 | .llseek = lpfc_debugfs_lseek, |
5678 | .read = lpfc_debugfs_read, |
5679 | .write = lpfc_debugfs_scsistat_write, |
5680 | .release = lpfc_debugfs_release, |
5681 | }; |
5682 | |
5683 | #undef lpfc_debugfs_op_ioktime |
5684 | static const struct file_operations lpfc_debugfs_op_ioktime = { |
5685 | .owner = THIS_MODULE, |
5686 | .open = lpfc_debugfs_ioktime_open, |
5687 | .llseek = lpfc_debugfs_lseek, |
5688 | .read = lpfc_debugfs_read, |
5689 | .write = lpfc_debugfs_ioktime_write, |
5690 | .release = lpfc_debugfs_release, |
5691 | }; |
5692 | |
5693 | #undef lpfc_debugfs_op_nvmeio_trc |
5694 | static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { |
5695 | .owner = THIS_MODULE, |
5696 | .open = lpfc_debugfs_nvmeio_trc_open, |
5697 | .llseek = lpfc_debugfs_lseek, |
5698 | .read = lpfc_debugfs_read, |
5699 | .write = lpfc_debugfs_nvmeio_trc_write, |
5700 | .release = lpfc_debugfs_release, |
5701 | }; |
5702 | |
5703 | #undef lpfc_debugfs_op_hdwqstat |
5704 | static const struct file_operations lpfc_debugfs_op_hdwqstat = { |
5705 | .owner = THIS_MODULE, |
5706 | .open = lpfc_debugfs_hdwqstat_open, |
5707 | .llseek = lpfc_debugfs_lseek, |
5708 | .read = lpfc_debugfs_read, |
5709 | .write = lpfc_debugfs_hdwqstat_write, |
5710 | .release = lpfc_debugfs_release, |
5711 | }; |
5712 | |
5713 | #undef lpfc_debugfs_op_dif_err |
5714 | static const struct file_operations lpfc_debugfs_op_dif_err = { |
5715 | .owner = THIS_MODULE, |
5716 | .open = simple_open, |
5717 | .llseek = lpfc_debugfs_lseek, |
5718 | .read = lpfc_debugfs_dif_err_read, |
5719 | .write = lpfc_debugfs_dif_err_write, |
5720 | .release = lpfc_debugfs_dif_err_release, |
5721 | }; |
5722 | |
5723 | #undef lpfc_debugfs_op_slow_ring_trc |
5724 | static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { |
5725 | .owner = THIS_MODULE, |
5726 | .open = lpfc_debugfs_slow_ring_trc_open, |
5727 | .llseek = lpfc_debugfs_lseek, |
5728 | .read = lpfc_debugfs_read, |
5729 | .release = lpfc_debugfs_release, |
5730 | }; |
5731 | |
5732 | static struct dentry *lpfc_debugfs_root = NULL; |
5733 | static atomic_t lpfc_debugfs_hba_count; |
5734 | |
5735 | /* |
5736 | * File operations for the iDiag debugfs |
5737 | */ |
5738 | #undef lpfc_idiag_op_pciCfg |
5739 | static const struct file_operations lpfc_idiag_op_pciCfg = { |
5740 | .owner = THIS_MODULE, |
5741 | .open = lpfc_idiag_open, |
5742 | .llseek = lpfc_debugfs_lseek, |
5743 | .read = lpfc_idiag_pcicfg_read, |
5744 | .write = lpfc_idiag_pcicfg_write, |
5745 | .release = lpfc_idiag_cmd_release, |
5746 | }; |
5747 | |
5748 | #undef lpfc_idiag_op_barAcc |
5749 | static const struct file_operations lpfc_idiag_op_barAcc = { |
5750 | .owner = THIS_MODULE, |
5751 | .open = lpfc_idiag_open, |
5752 | .llseek = lpfc_debugfs_lseek, |
5753 | .read = lpfc_idiag_baracc_read, |
5754 | .write = lpfc_idiag_baracc_write, |
5755 | .release = lpfc_idiag_cmd_release, |
5756 | }; |
5757 | |
5758 | #undef lpfc_idiag_op_queInfo |
5759 | static const struct file_operations lpfc_idiag_op_queInfo = { |
5760 | .owner = THIS_MODULE, |
5761 | .open = lpfc_idiag_open, |
5762 | .read = lpfc_idiag_queinfo_read, |
5763 | .release = lpfc_idiag_release, |
5764 | }; |
5765 | |
5766 | #undef lpfc_idiag_op_queAcc |
5767 | static const struct file_operations lpfc_idiag_op_queAcc = { |
5768 | .owner = THIS_MODULE, |
5769 | .open = lpfc_idiag_open, |
5770 | .llseek = lpfc_debugfs_lseek, |
5771 | .read = lpfc_idiag_queacc_read, |
5772 | .write = lpfc_idiag_queacc_write, |
5773 | .release = lpfc_idiag_cmd_release, |
5774 | }; |
5775 | |
5776 | #undef lpfc_idiag_op_drbAcc |
5777 | static const struct file_operations lpfc_idiag_op_drbAcc = { |
5778 | .owner = THIS_MODULE, |
5779 | .open = lpfc_idiag_open, |
5780 | .llseek = lpfc_debugfs_lseek, |
5781 | .read = lpfc_idiag_drbacc_read, |
5782 | .write = lpfc_idiag_drbacc_write, |
5783 | .release = lpfc_idiag_cmd_release, |
5784 | }; |
5785 | |
5786 | #undef lpfc_idiag_op_ctlAcc |
5787 | static const struct file_operations lpfc_idiag_op_ctlAcc = { |
5788 | .owner = THIS_MODULE, |
5789 | .open = lpfc_idiag_open, |
5790 | .llseek = lpfc_debugfs_lseek, |
5791 | .read = lpfc_idiag_ctlacc_read, |
5792 | .write = lpfc_idiag_ctlacc_write, |
5793 | .release = lpfc_idiag_cmd_release, |
5794 | }; |
5795 | |
5796 | #undef lpfc_idiag_op_mbxAcc |
5797 | static const struct file_operations lpfc_idiag_op_mbxAcc = { |
5798 | .owner = THIS_MODULE, |
5799 | .open = lpfc_idiag_open, |
5800 | .llseek = lpfc_debugfs_lseek, |
5801 | .read = lpfc_idiag_mbxacc_read, |
5802 | .write = lpfc_idiag_mbxacc_write, |
5803 | .release = lpfc_idiag_cmd_release, |
5804 | }; |
5805 | |
5806 | #undef lpfc_idiag_op_extAcc |
5807 | static const struct file_operations lpfc_idiag_op_extAcc = { |
5808 | .owner = THIS_MODULE, |
5809 | .open = lpfc_idiag_open, |
5810 | .llseek = lpfc_debugfs_lseek, |
5811 | .read = lpfc_idiag_extacc_read, |
5812 | .write = lpfc_idiag_extacc_write, |
5813 | .release = lpfc_idiag_cmd_release, |
5814 | }; |
5815 | #undef lpfc_cgn_buffer_op |
5816 | static const struct file_operations lpfc_cgn_buffer_op = { |
5817 | .owner = THIS_MODULE, |
5818 | .open = lpfc_cgn_buffer_open, |
5819 | .llseek = lpfc_debugfs_lseek, |
5820 | .read = lpfc_cgn_buffer_read, |
5821 | .release = lpfc_cgn_buffer_release, |
5822 | }; |
5823 | |
5824 | #undef lpfc_rx_monitor_op |
5825 | static const struct file_operations lpfc_rx_monitor_op = { |
5826 | .owner = THIS_MODULE, |
5827 | .open = lpfc_rx_monitor_open, |
5828 | .llseek = lpfc_debugfs_lseek, |
5829 | .read = lpfc_rx_monitor_read, |
5830 | .release = lpfc_rx_monitor_release, |
5831 | }; |
5832 | #endif |
5833 | |
5834 | /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command |
5835 | * @phba: Pointer to HBA context object. |
5836 | * @dmabuf: Pointer to a DMA buffer descriptor. |
5837 | * |
5838 | * Description: |
5839 | * This routine dump a bsg pass-through non-embedded mailbox command with |
5840 | * external buffer. |
5841 | **/ |
5842 | void |
5843 | lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, |
5844 | enum mbox_type mbox_tp, enum dma_type dma_tp, |
5845 | enum sta_type sta_tp, |
5846 | struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) |
5847 | { |
5848 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
5849 | uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; |
5850 | char line_buf[LPFC_MBX_ACC_LBUF_SZ]; |
5851 | int len = 0; |
5852 | uint32_t do_dump = 0; |
5853 | uint32_t *pword; |
5854 | uint32_t i; |
5855 | |
5856 | if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) |
5857 | return; |
5858 | |
5859 | mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; |
5860 | mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; |
5861 | mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; |
5862 | mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; |
5863 | |
5864 | if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || |
5865 | (*mbx_dump_cnt == 0) || |
5866 | (*mbx_word_cnt == 0)) |
5867 | return; |
5868 | |
5869 | if (*mbx_mbox_cmd != 0x9B) |
5870 | return; |
5871 | |
5872 | if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { |
5873 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { |
5874 | do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; |
5875 | pr_err("\nRead mbox command (x%x), " |
5876 | "nemb:0x%x, extbuf_cnt:%d:\n" , |
5877 | sta_tp, nemb_tp, ext_buf); |
5878 | } |
5879 | } |
5880 | if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { |
5881 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { |
5882 | do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; |
5883 | pr_err("\nRead mbox buffer (x%x), " |
5884 | "nemb:0x%x, extbuf_seq:%d:\n" , |
5885 | sta_tp, nemb_tp, ext_buf); |
5886 | } |
5887 | } |
5888 | if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { |
5889 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { |
5890 | do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; |
5891 | pr_err("\nWrite mbox command (x%x), " |
5892 | "nemb:0x%x, extbuf_cnt:%d:\n" , |
5893 | sta_tp, nemb_tp, ext_buf); |
5894 | } |
5895 | } |
5896 | if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { |
5897 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { |
5898 | do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; |
5899 | pr_err("\nWrite mbox buffer (x%x), " |
5900 | "nemb:0x%x, extbuf_seq:%d:\n" , |
5901 | sta_tp, nemb_tp, ext_buf); |
5902 | } |
5903 | } |
5904 | |
5905 | /* dump buffer content */ |
5906 | if (do_dump) { |
5907 | pword = (uint32_t *)dmabuf->virt; |
5908 | for (i = 0; i < *mbx_word_cnt; i++) { |
5909 | if (!(i % 8)) { |
5910 | if (i != 0) |
5911 | pr_err("%s\n" , line_buf); |
5912 | len = 0; |
5913 | len += scnprintf(buf: line_buf+len, |
5914 | LPFC_MBX_ACC_LBUF_SZ-len, |
5915 | fmt: "%03d: " , i); |
5916 | } |
5917 | len += scnprintf(buf: line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, |
5918 | fmt: "%08x " , (uint32_t)*pword); |
5919 | pword++; |
5920 | } |
5921 | if ((i - 1) % 8) |
5922 | pr_err("%s\n" , line_buf); |
5923 | (*mbx_dump_cnt)--; |
5924 | } |
5925 | |
5926 | /* Clean out command structure on reaching dump count */ |
5927 | if (*mbx_dump_cnt == 0) |
5928 | memset(&idiag, 0, sizeof(idiag)); |
5929 | return; |
5930 | #endif |
5931 | } |
5932 | |
5933 | /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command |
5934 | * @phba: Pointer to HBA context object. |
5935 | * @dmabuf: Pointer to a DMA buffer descriptor. |
5936 | * |
5937 | * Description: |
5938 | * This routine dump a pass-through non-embedded mailbox command from issue |
5939 | * mailbox command. |
5940 | **/ |
5941 | void |
5942 | lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) |
5943 | { |
5944 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
5945 | uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; |
5946 | char line_buf[LPFC_MBX_ACC_LBUF_SZ]; |
5947 | int len = 0; |
5948 | uint32_t *pword; |
5949 | uint8_t *pbyte; |
5950 | uint32_t i, j; |
5951 | |
5952 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) |
5953 | return; |
5954 | |
5955 | mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; |
5956 | mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; |
5957 | mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; |
5958 | mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; |
5959 | |
5960 | if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || |
5961 | (*mbx_dump_cnt == 0) || |
5962 | (*mbx_word_cnt == 0)) |
5963 | return; |
5964 | |
5965 | if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && |
5966 | (*mbx_mbox_cmd != pmbox->mbxCommand)) |
5967 | return; |
5968 | |
5969 | /* dump buffer content */ |
5970 | if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { |
5971 | pr_err("Mailbox command:0x%x dump by word:\n" , |
5972 | pmbox->mbxCommand); |
5973 | pword = (uint32_t *)pmbox; |
5974 | for (i = 0; i < *mbx_word_cnt; i++) { |
5975 | if (!(i % 8)) { |
5976 | if (i != 0) |
5977 | pr_err("%s\n" , line_buf); |
5978 | len = 0; |
5979 | memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); |
5980 | len += scnprintf(buf: line_buf+len, |
5981 | LPFC_MBX_ACC_LBUF_SZ-len, |
5982 | fmt: "%03d: " , i); |
5983 | } |
5984 | len += scnprintf(buf: line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, |
5985 | fmt: "%08x " , |
5986 | ((uint32_t)*pword) & 0xffffffff); |
5987 | pword++; |
5988 | } |
5989 | if ((i - 1) % 8) |
5990 | pr_err("%s\n" , line_buf); |
5991 | pr_err("\n" ); |
5992 | } |
5993 | if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { |
5994 | pr_err("Mailbox command:0x%x dump by byte:\n" , |
5995 | pmbox->mbxCommand); |
5996 | pbyte = (uint8_t *)pmbox; |
5997 | for (i = 0; i < *mbx_word_cnt; i++) { |
5998 | if (!(i % 8)) { |
5999 | if (i != 0) |
6000 | pr_err("%s\n" , line_buf); |
6001 | len = 0; |
6002 | memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); |
6003 | len += scnprintf(buf: line_buf+len, |
6004 | LPFC_MBX_ACC_LBUF_SZ-len, |
6005 | fmt: "%03d: " , i); |
6006 | } |
6007 | for (j = 0; j < 4; j++) { |
6008 | len += scnprintf(buf: line_buf+len, |
6009 | LPFC_MBX_ACC_LBUF_SZ-len, |
6010 | fmt: "%02x" , |
6011 | ((uint8_t)*pbyte) & 0xff); |
6012 | pbyte++; |
6013 | } |
6014 | len += scnprintf(buf: line_buf+len, |
6015 | LPFC_MBX_ACC_LBUF_SZ-len, fmt: " " ); |
6016 | } |
6017 | if ((i - 1) % 8) |
6018 | pr_err("%s\n" , line_buf); |
6019 | pr_err("\n" ); |
6020 | } |
6021 | (*mbx_dump_cnt)--; |
6022 | |
6023 | /* Clean out command structure on reaching dump count */ |
6024 | if (*mbx_dump_cnt == 0) |
6025 | memset(&idiag, 0, sizeof(idiag)); |
6026 | return; |
6027 | #endif |
6028 | } |
6029 | |
6030 | /** |
6031 | * lpfc_debugfs_initialize - Initialize debugfs for a vport |
6032 | * @vport: The vport pointer to initialize. |
6033 | * |
6034 | * Description: |
6035 | * When Debugfs is configured this routine sets up the lpfc debugfs file system. |
6036 | * If not already created, this routine will create the lpfc directory, and |
6037 | * lpfcX directory (for this HBA), and vportX directory for this vport. It will |
6038 | * also create each file used to access lpfc specific debugfs information. |
6039 | **/ |
6040 | inline void |
6041 | lpfc_debugfs_initialize(struct lpfc_vport *vport) |
6042 | { |
6043 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
6044 | struct lpfc_hba *phba = vport->phba; |
6045 | char name[64]; |
6046 | uint32_t num, i; |
6047 | bool pport_setup = false; |
6048 | |
6049 | if (!lpfc_debugfs_enable) |
6050 | return; |
6051 | |
6052 | /* Setup lpfc root directory */ |
6053 | if (!lpfc_debugfs_root) { |
6054 | lpfc_debugfs_root = debugfs_create_dir(name: "lpfc" , NULL); |
6055 | atomic_set(v: &lpfc_debugfs_hba_count, i: 0); |
6056 | } |
6057 | if (!lpfc_debugfs_start_time) |
6058 | lpfc_debugfs_start_time = jiffies; |
6059 | |
6060 | /* Setup funcX directory for specific HBA PCI function */ |
6061 | snprintf(buf: name, size: sizeof(name), fmt: "fn%d" , phba->brd_no); |
6062 | if (!phba->hba_debugfs_root) { |
6063 | pport_setup = true; |
6064 | phba->hba_debugfs_root = |
6065 | debugfs_create_dir(name, parent: lpfc_debugfs_root); |
6066 | atomic_inc(v: &lpfc_debugfs_hba_count); |
6067 | atomic_set(v: &phba->debugfs_vport_count, i: 0); |
6068 | |
6069 | /* Multi-XRI pools */ |
6070 | snprintf(buf: name, size: sizeof(name), fmt: "multixripools" ); |
6071 | phba->debug_multixri_pools = |
6072 | debugfs_create_file(name, S_IFREG | 0644, |
6073 | parent: phba->hba_debugfs_root, |
6074 | data: phba, |
6075 | fops: &lpfc_debugfs_op_multixripools); |
6076 | if (IS_ERR(ptr: phba->debug_multixri_pools)) { |
6077 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6078 | "0527 Cannot create debugfs multixripools\n" ); |
6079 | goto debug_failed; |
6080 | } |
6081 | |
6082 | /* Congestion Info Buffer */ |
6083 | scnprintf(buf: name, size: sizeof(name), fmt: "cgn_buffer" ); |
6084 | phba->debug_cgn_buffer = |
6085 | debugfs_create_file(name, S_IFREG | 0644, |
6086 | parent: phba->hba_debugfs_root, |
6087 | data: phba, fops: &lpfc_cgn_buffer_op); |
6088 | if (IS_ERR(ptr: phba->debug_cgn_buffer)) { |
6089 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6090 | "6527 Cannot create debugfs " |
6091 | "cgn_buffer\n" ); |
6092 | goto debug_failed; |
6093 | } |
6094 | |
6095 | /* RX Monitor */ |
6096 | scnprintf(buf: name, size: sizeof(name), fmt: "rx_monitor" ); |
6097 | phba->debug_rx_monitor = |
6098 | debugfs_create_file(name, S_IFREG | 0644, |
6099 | parent: phba->hba_debugfs_root, |
6100 | data: phba, fops: &lpfc_rx_monitor_op); |
6101 | if (IS_ERR(ptr: phba->debug_rx_monitor)) { |
6102 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6103 | "6528 Cannot create debugfs " |
6104 | "rx_monitor\n" ); |
6105 | goto debug_failed; |
6106 | } |
6107 | |
6108 | /* RAS log */ |
6109 | snprintf(buf: name, size: sizeof(name), fmt: "ras_log" ); |
6110 | phba->debug_ras_log = |
6111 | debugfs_create_file(name, mode: 0644, |
6112 | parent: phba->hba_debugfs_root, |
6113 | data: phba, fops: &lpfc_debugfs_ras_log); |
6114 | if (IS_ERR(ptr: phba->debug_ras_log)) { |
6115 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6116 | "6148 Cannot create debugfs" |
6117 | " ras_log\n" ); |
6118 | goto debug_failed; |
6119 | } |
6120 | |
6121 | /* Setup hbqinfo */ |
6122 | snprintf(buf: name, size: sizeof(name), fmt: "hbqinfo" ); |
6123 | phba->debug_hbqinfo = |
6124 | debugfs_create_file(name, S_IFREG | 0644, |
6125 | parent: phba->hba_debugfs_root, |
6126 | data: phba, fops: &lpfc_debugfs_op_hbqinfo); |
6127 | |
6128 | #ifdef LPFC_HDWQ_LOCK_STAT |
6129 | /* Setup lockstat */ |
6130 | snprintf(name, sizeof(name), "lockstat" ); |
6131 | phba->debug_lockstat = |
6132 | debugfs_create_file(name, S_IFREG | 0644, |
6133 | phba->hba_debugfs_root, |
6134 | phba, &lpfc_debugfs_op_lockstat); |
6135 | if (IS_ERR(phba->debug_lockstat)) { |
6136 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6137 | "4610 Can't create debugfs lockstat\n" ); |
6138 | goto debug_failed; |
6139 | } |
6140 | #endif |
6141 | |
6142 | /* Setup dumpHBASlim */ |
6143 | if (phba->sli_rev < LPFC_SLI_REV4) { |
6144 | snprintf(buf: name, size: sizeof(name), fmt: "dumpHBASlim" ); |
6145 | phba->debug_dumpHBASlim = |
6146 | debugfs_create_file(name, |
6147 | S_IFREG|S_IRUGO|S_IWUSR, |
6148 | parent: phba->hba_debugfs_root, |
6149 | data: phba, fops: &lpfc_debugfs_op_dumpHBASlim); |
6150 | } else |
6151 | phba->debug_dumpHBASlim = NULL; |
6152 | |
6153 | /* Setup dumpHostSlim */ |
6154 | if (phba->sli_rev < LPFC_SLI_REV4) { |
6155 | snprintf(buf: name, size: sizeof(name), fmt: "dumpHostSlim" ); |
6156 | phba->debug_dumpHostSlim = |
6157 | debugfs_create_file(name, |
6158 | S_IFREG|S_IRUGO|S_IWUSR, |
6159 | parent: phba->hba_debugfs_root, |
6160 | data: phba, fops: &lpfc_debugfs_op_dumpHostSlim); |
6161 | } else |
6162 | phba->debug_dumpHostSlim = NULL; |
6163 | |
6164 | /* Setup DIF Error Injections */ |
6165 | snprintf(buf: name, size: sizeof(name), fmt: "InjErrLBA" ); |
6166 | phba->debug_InjErrLBA = |
6167 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6168 | parent: phba->hba_debugfs_root, |
6169 | data: phba, fops: &lpfc_debugfs_op_dif_err); |
6170 | phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; |
6171 | |
6172 | snprintf(buf: name, size: sizeof(name), fmt: "InjErrNPortID" ); |
6173 | phba->debug_InjErrNPortID = |
6174 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6175 | parent: phba->hba_debugfs_root, |
6176 | data: phba, fops: &lpfc_debugfs_op_dif_err); |
6177 | |
6178 | snprintf(buf: name, size: sizeof(name), fmt: "InjErrWWPN" ); |
6179 | phba->debug_InjErrWWPN = |
6180 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6181 | parent: phba->hba_debugfs_root, |
6182 | data: phba, fops: &lpfc_debugfs_op_dif_err); |
6183 | |
6184 | snprintf(buf: name, size: sizeof(name), fmt: "writeGuardInjErr" ); |
6185 | phba->debug_writeGuard = |
6186 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6187 | parent: phba->hba_debugfs_root, |
6188 | data: phba, fops: &lpfc_debugfs_op_dif_err); |
6189 | |
6190 | snprintf(buf: name, size: sizeof(name), fmt: "writeAppInjErr" ); |
6191 | phba->debug_writeApp = |
6192 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6193 | parent: phba->hba_debugfs_root, |
6194 | data: phba, fops: &lpfc_debugfs_op_dif_err); |
6195 | |
6196 | snprintf(buf: name, size: sizeof(name), fmt: "writeRefInjErr" ); |
6197 | phba->debug_writeRef = |
6198 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6199 | parent: phba->hba_debugfs_root, |
6200 | data: phba, fops: &lpfc_debugfs_op_dif_err); |
6201 | |
6202 | snprintf(buf: name, size: sizeof(name), fmt: "readGuardInjErr" ); |
6203 | phba->debug_readGuard = |
6204 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6205 | parent: phba->hba_debugfs_root, |
6206 | data: phba, fops: &lpfc_debugfs_op_dif_err); |
6207 | |
6208 | snprintf(buf: name, size: sizeof(name), fmt: "readAppInjErr" ); |
6209 | phba->debug_readApp = |
6210 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6211 | parent: phba->hba_debugfs_root, |
6212 | data: phba, fops: &lpfc_debugfs_op_dif_err); |
6213 | |
6214 | snprintf(buf: name, size: sizeof(name), fmt: "readRefInjErr" ); |
6215 | phba->debug_readRef = |
6216 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6217 | parent: phba->hba_debugfs_root, |
6218 | data: phba, fops: &lpfc_debugfs_op_dif_err); |
6219 | |
6220 | /* Setup slow ring trace */ |
6221 | if (lpfc_debugfs_max_slow_ring_trc) { |
6222 | num = lpfc_debugfs_max_slow_ring_trc - 1; |
6223 | if (num & lpfc_debugfs_max_slow_ring_trc) { |
6224 | /* Change to be a power of 2 */ |
6225 | num = lpfc_debugfs_max_slow_ring_trc; |
6226 | i = 0; |
6227 | while (num > 1) { |
6228 | num = num >> 1; |
6229 | i++; |
6230 | } |
6231 | lpfc_debugfs_max_slow_ring_trc = (1 << i); |
6232 | pr_err("lpfc_debugfs_max_disc_trc changed to " |
6233 | "%d\n" , lpfc_debugfs_max_disc_trc); |
6234 | } |
6235 | } |
6236 | |
6237 | snprintf(buf: name, size: sizeof(name), fmt: "slow_ring_trace" ); |
6238 | phba->debug_slow_ring_trc = |
6239 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6240 | parent: phba->hba_debugfs_root, |
6241 | data: phba, fops: &lpfc_debugfs_op_slow_ring_trc); |
6242 | if (!phba->slow_ring_trc) { |
6243 | phba->slow_ring_trc = kcalloc( |
6244 | n: lpfc_debugfs_max_slow_ring_trc, |
6245 | size: sizeof(struct lpfc_debugfs_trc), |
6246 | GFP_KERNEL); |
6247 | if (!phba->slow_ring_trc) { |
6248 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6249 | "0416 Cannot create debugfs " |
6250 | "slow_ring buffer\n" ); |
6251 | goto debug_failed; |
6252 | } |
6253 | atomic_set(v: &phba->slow_ring_trc_cnt, i: 0); |
6254 | } |
6255 | |
6256 | snprintf(buf: name, size: sizeof(name), fmt: "nvmeio_trc" ); |
6257 | phba->debug_nvmeio_trc = |
6258 | debugfs_create_file(name, mode: 0644, |
6259 | parent: phba->hba_debugfs_root, |
6260 | data: phba, fops: &lpfc_debugfs_op_nvmeio_trc); |
6261 | |
6262 | atomic_set(v: &phba->nvmeio_trc_cnt, i: 0); |
6263 | if (lpfc_debugfs_max_nvmeio_trc) { |
6264 | num = lpfc_debugfs_max_nvmeio_trc - 1; |
6265 | if (num & lpfc_debugfs_max_disc_trc) { |
6266 | /* Change to be a power of 2 */ |
6267 | num = lpfc_debugfs_max_nvmeio_trc; |
6268 | i = 0; |
6269 | while (num > 1) { |
6270 | num = num >> 1; |
6271 | i++; |
6272 | } |
6273 | lpfc_debugfs_max_nvmeio_trc = (1 << i); |
6274 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
6275 | "0575 lpfc_debugfs_max_nvmeio_trc " |
6276 | "changed to %d\n" , |
6277 | lpfc_debugfs_max_nvmeio_trc); |
6278 | } |
6279 | phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; |
6280 | |
6281 | /* Allocate trace buffer and initialize */ |
6282 | phba->nvmeio_trc = kzalloc( |
6283 | size: (sizeof(struct lpfc_debugfs_nvmeio_trc) * |
6284 | phba->nvmeio_trc_size), GFP_KERNEL); |
6285 | |
6286 | if (!phba->nvmeio_trc) { |
6287 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
6288 | "0576 Cannot create debugfs " |
6289 | "nvmeio_trc buffer\n" ); |
6290 | goto nvmeio_off; |
6291 | } |
6292 | phba->nvmeio_trc_on = 1; |
6293 | phba->nvmeio_trc_output_idx = 0; |
6294 | phba->nvmeio_trc = NULL; |
6295 | } else { |
6296 | nvmeio_off: |
6297 | phba->nvmeio_trc_size = 0; |
6298 | phba->nvmeio_trc_on = 0; |
6299 | phba->nvmeio_trc_output_idx = 0; |
6300 | phba->nvmeio_trc = NULL; |
6301 | } |
6302 | } |
6303 | |
6304 | snprintf(buf: name, size: sizeof(name), fmt: "vport%d" , vport->vpi); |
6305 | if (!vport->vport_debugfs_root) { |
6306 | vport->vport_debugfs_root = |
6307 | debugfs_create_dir(name, parent: phba->hba_debugfs_root); |
6308 | atomic_inc(v: &phba->debugfs_vport_count); |
6309 | } |
6310 | |
6311 | if (lpfc_debugfs_max_disc_trc) { |
6312 | num = lpfc_debugfs_max_disc_trc - 1; |
6313 | if (num & lpfc_debugfs_max_disc_trc) { |
6314 | /* Change to be a power of 2 */ |
6315 | num = lpfc_debugfs_max_disc_trc; |
6316 | i = 0; |
6317 | while (num > 1) { |
6318 | num = num >> 1; |
6319 | i++; |
6320 | } |
6321 | lpfc_debugfs_max_disc_trc = (1 << i); |
6322 | pr_err("lpfc_debugfs_max_disc_trc changed to %d\n" , |
6323 | lpfc_debugfs_max_disc_trc); |
6324 | } |
6325 | } |
6326 | |
6327 | vport->disc_trc = kzalloc( |
6328 | size: (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), |
6329 | GFP_KERNEL); |
6330 | |
6331 | if (!vport->disc_trc) { |
6332 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6333 | "0418 Cannot create debugfs disc trace " |
6334 | "buffer\n" ); |
6335 | goto debug_failed; |
6336 | } |
6337 | atomic_set(v: &vport->disc_trc_cnt, i: 0); |
6338 | |
6339 | snprintf(buf: name, size: sizeof(name), fmt: "discovery_trace" ); |
6340 | vport->debug_disc_trc = |
6341 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6342 | parent: vport->vport_debugfs_root, |
6343 | data: vport, fops: &lpfc_debugfs_op_disc_trc); |
6344 | snprintf(buf: name, size: sizeof(name), fmt: "nodelist" ); |
6345 | vport->debug_nodelist = |
6346 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6347 | parent: vport->vport_debugfs_root, |
6348 | data: vport, fops: &lpfc_debugfs_op_nodelist); |
6349 | |
6350 | snprintf(buf: name, size: sizeof(name), fmt: "nvmestat" ); |
6351 | vport->debug_nvmestat = |
6352 | debugfs_create_file(name, mode: 0644, |
6353 | parent: vport->vport_debugfs_root, |
6354 | data: vport, fops: &lpfc_debugfs_op_nvmestat); |
6355 | |
6356 | snprintf(buf: name, size: sizeof(name), fmt: "scsistat" ); |
6357 | vport->debug_scsistat = |
6358 | debugfs_create_file(name, mode: 0644, |
6359 | parent: vport->vport_debugfs_root, |
6360 | data: vport, fops: &lpfc_debugfs_op_scsistat); |
6361 | if (IS_ERR(ptr: vport->debug_scsistat)) { |
6362 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6363 | "4611 Cannot create debugfs scsistat\n" ); |
6364 | goto debug_failed; |
6365 | } |
6366 | |
6367 | snprintf(buf: name, size: sizeof(name), fmt: "ioktime" ); |
6368 | vport->debug_ioktime = |
6369 | debugfs_create_file(name, mode: 0644, |
6370 | parent: vport->vport_debugfs_root, |
6371 | data: vport, fops: &lpfc_debugfs_op_ioktime); |
6372 | if (IS_ERR(ptr: vport->debug_ioktime)) { |
6373 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6374 | "0815 Cannot create debugfs ioktime\n" ); |
6375 | goto debug_failed; |
6376 | } |
6377 | |
6378 | snprintf(buf: name, size: sizeof(name), fmt: "hdwqstat" ); |
6379 | vport->debug_hdwqstat = |
6380 | debugfs_create_file(name, mode: 0644, |
6381 | parent: vport->vport_debugfs_root, |
6382 | data: vport, fops: &lpfc_debugfs_op_hdwqstat); |
6383 | |
6384 | /* |
6385 | * The following section is for additional directories/files for the |
6386 | * physical port. |
6387 | */ |
6388 | |
6389 | if (!pport_setup) |
6390 | goto debug_failed; |
6391 | |
6392 | /* |
6393 | * iDiag debugfs root entry points for SLI4 device only |
6394 | */ |
6395 | if (phba->sli_rev < LPFC_SLI_REV4) |
6396 | goto debug_failed; |
6397 | |
6398 | snprintf(buf: name, size: sizeof(name), fmt: "iDiag" ); |
6399 | if (!phba->idiag_root) { |
6400 | phba->idiag_root = |
6401 | debugfs_create_dir(name, parent: phba->hba_debugfs_root); |
6402 | /* Initialize iDiag data structure */ |
6403 | memset(&idiag, 0, sizeof(idiag)); |
6404 | } |
6405 | |
6406 | /* iDiag read PCI config space */ |
6407 | snprintf(buf: name, size: sizeof(name), fmt: "pciCfg" ); |
6408 | if (!phba->idiag_pci_cfg) { |
6409 | phba->idiag_pci_cfg = |
6410 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6411 | parent: phba->idiag_root, data: phba, fops: &lpfc_idiag_op_pciCfg); |
6412 | idiag.offset.last_rd = 0; |
6413 | } |
6414 | |
6415 | /* iDiag PCI BAR access */ |
6416 | snprintf(buf: name, size: sizeof(name), fmt: "barAcc" ); |
6417 | if (!phba->idiag_bar_acc) { |
6418 | phba->idiag_bar_acc = |
6419 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6420 | parent: phba->idiag_root, data: phba, fops: &lpfc_idiag_op_barAcc); |
6421 | idiag.offset.last_rd = 0; |
6422 | } |
6423 | |
6424 | /* iDiag get PCI function queue information */ |
6425 | snprintf(buf: name, size: sizeof(name), fmt: "queInfo" ); |
6426 | if (!phba->idiag_que_info) { |
6427 | phba->idiag_que_info = |
6428 | debugfs_create_file(name, S_IFREG|S_IRUGO, |
6429 | parent: phba->idiag_root, data: phba, fops: &lpfc_idiag_op_queInfo); |
6430 | } |
6431 | |
6432 | /* iDiag access PCI function queue */ |
6433 | snprintf(buf: name, size: sizeof(name), fmt: "queAcc" ); |
6434 | if (!phba->idiag_que_acc) { |
6435 | phba->idiag_que_acc = |
6436 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6437 | parent: phba->idiag_root, data: phba, fops: &lpfc_idiag_op_queAcc); |
6438 | } |
6439 | |
6440 | /* iDiag access PCI function doorbell registers */ |
6441 | snprintf(buf: name, size: sizeof(name), fmt: "drbAcc" ); |
6442 | if (!phba->idiag_drb_acc) { |
6443 | phba->idiag_drb_acc = |
6444 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6445 | parent: phba->idiag_root, data: phba, fops: &lpfc_idiag_op_drbAcc); |
6446 | } |
6447 | |
6448 | /* iDiag access PCI function control registers */ |
6449 | snprintf(buf: name, size: sizeof(name), fmt: "ctlAcc" ); |
6450 | if (!phba->idiag_ctl_acc) { |
6451 | phba->idiag_ctl_acc = |
6452 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6453 | parent: phba->idiag_root, data: phba, fops: &lpfc_idiag_op_ctlAcc); |
6454 | } |
6455 | |
6456 | /* iDiag access mbox commands */ |
6457 | snprintf(buf: name, size: sizeof(name), fmt: "mbxAcc" ); |
6458 | if (!phba->idiag_mbx_acc) { |
6459 | phba->idiag_mbx_acc = |
6460 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, |
6461 | parent: phba->idiag_root, data: phba, fops: &lpfc_idiag_op_mbxAcc); |
6462 | } |
6463 | |
6464 | /* iDiag extents access commands */ |
6465 | if (phba->sli4_hba.extents_in_use) { |
6466 | snprintf(buf: name, size: sizeof(name), fmt: "extAcc" ); |
6467 | if (!phba->idiag_ext_acc) { |
6468 | phba->idiag_ext_acc = |
6469 | debugfs_create_file(name, |
6470 | S_IFREG|S_IRUGO|S_IWUSR, |
6471 | parent: phba->idiag_root, data: phba, |
6472 | fops: &lpfc_idiag_op_extAcc); |
6473 | } |
6474 | } |
6475 | |
6476 | debug_failed: |
6477 | return; |
6478 | #endif |
6479 | } |
6480 | |
6481 | /** |
6482 | * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport |
6483 | * @vport: The vport pointer to remove from debugfs. |
6484 | * |
6485 | * Description: |
6486 | * When Debugfs is configured this routine removes debugfs file system elements |
6487 | * that are specific to this vport. It also checks to see if there are any |
6488 | * users left for the debugfs directories associated with the HBA and driver. If |
6489 | * this is the last user of the HBA directory or driver directory then it will |
6490 | * remove those from the debugfs infrastructure as well. |
6491 | **/ |
6492 | inline void |
6493 | lpfc_debugfs_terminate(struct lpfc_vport *vport) |
6494 | { |
6495 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
6496 | struct lpfc_hba *phba = vport->phba; |
6497 | |
6498 | kfree(objp: vport->disc_trc); |
6499 | vport->disc_trc = NULL; |
6500 | |
6501 | debugfs_remove(dentry: vport->debug_disc_trc); /* discovery_trace */ |
6502 | vport->debug_disc_trc = NULL; |
6503 | |
6504 | debugfs_remove(dentry: vport->debug_nodelist); /* nodelist */ |
6505 | vport->debug_nodelist = NULL; |
6506 | |
6507 | debugfs_remove(dentry: vport->debug_nvmestat); /* nvmestat */ |
6508 | vport->debug_nvmestat = NULL; |
6509 | |
6510 | debugfs_remove(dentry: vport->debug_scsistat); /* scsistat */ |
6511 | vport->debug_scsistat = NULL; |
6512 | |
6513 | debugfs_remove(dentry: vport->debug_ioktime); /* ioktime */ |
6514 | vport->debug_ioktime = NULL; |
6515 | |
6516 | debugfs_remove(dentry: vport->debug_hdwqstat); /* hdwqstat */ |
6517 | vport->debug_hdwqstat = NULL; |
6518 | |
6519 | if (vport->vport_debugfs_root) { |
6520 | debugfs_remove(dentry: vport->vport_debugfs_root); /* vportX */ |
6521 | vport->vport_debugfs_root = NULL; |
6522 | atomic_dec(v: &phba->debugfs_vport_count); |
6523 | } |
6524 | |
6525 | if (atomic_read(v: &phba->debugfs_vport_count) == 0) { |
6526 | |
6527 | debugfs_remove(dentry: phba->debug_multixri_pools); /* multixripools*/ |
6528 | phba->debug_multixri_pools = NULL; |
6529 | |
6530 | debugfs_remove(dentry: phba->debug_hbqinfo); /* hbqinfo */ |
6531 | phba->debug_hbqinfo = NULL; |
6532 | |
6533 | debugfs_remove(dentry: phba->debug_cgn_buffer); |
6534 | phba->debug_cgn_buffer = NULL; |
6535 | |
6536 | debugfs_remove(dentry: phba->debug_rx_monitor); |
6537 | phba->debug_rx_monitor = NULL; |
6538 | |
6539 | debugfs_remove(dentry: phba->debug_ras_log); |
6540 | phba->debug_ras_log = NULL; |
6541 | |
6542 | #ifdef LPFC_HDWQ_LOCK_STAT |
6543 | debugfs_remove(phba->debug_lockstat); /* lockstat */ |
6544 | phba->debug_lockstat = NULL; |
6545 | #endif |
6546 | debugfs_remove(dentry: phba->debug_dumpHBASlim); /* HBASlim */ |
6547 | phba->debug_dumpHBASlim = NULL; |
6548 | |
6549 | debugfs_remove(dentry: phba->debug_dumpHostSlim); /* HostSlim */ |
6550 | phba->debug_dumpHostSlim = NULL; |
6551 | |
6552 | debugfs_remove(dentry: phba->debug_InjErrLBA); /* InjErrLBA */ |
6553 | phba->debug_InjErrLBA = NULL; |
6554 | |
6555 | debugfs_remove(dentry: phba->debug_InjErrNPortID); |
6556 | phba->debug_InjErrNPortID = NULL; |
6557 | |
6558 | debugfs_remove(dentry: phba->debug_InjErrWWPN); /* InjErrWWPN */ |
6559 | phba->debug_InjErrWWPN = NULL; |
6560 | |
6561 | debugfs_remove(dentry: phba->debug_writeGuard); /* writeGuard */ |
6562 | phba->debug_writeGuard = NULL; |
6563 | |
6564 | debugfs_remove(dentry: phba->debug_writeApp); /* writeApp */ |
6565 | phba->debug_writeApp = NULL; |
6566 | |
6567 | debugfs_remove(dentry: phba->debug_writeRef); /* writeRef */ |
6568 | phba->debug_writeRef = NULL; |
6569 | |
6570 | debugfs_remove(dentry: phba->debug_readGuard); /* readGuard */ |
6571 | phba->debug_readGuard = NULL; |
6572 | |
6573 | debugfs_remove(dentry: phba->debug_readApp); /* readApp */ |
6574 | phba->debug_readApp = NULL; |
6575 | |
6576 | debugfs_remove(dentry: phba->debug_readRef); /* readRef */ |
6577 | phba->debug_readRef = NULL; |
6578 | |
6579 | kfree(objp: phba->slow_ring_trc); |
6580 | phba->slow_ring_trc = NULL; |
6581 | |
6582 | /* slow_ring_trace */ |
6583 | debugfs_remove(dentry: phba->debug_slow_ring_trc); |
6584 | phba->debug_slow_ring_trc = NULL; |
6585 | |
6586 | debugfs_remove(dentry: phba->debug_nvmeio_trc); |
6587 | phba->debug_nvmeio_trc = NULL; |
6588 | |
6589 | kfree(objp: phba->nvmeio_trc); |
6590 | phba->nvmeio_trc = NULL; |
6591 | |
6592 | /* |
6593 | * iDiag release |
6594 | */ |
6595 | if (phba->sli_rev == LPFC_SLI_REV4) { |
6596 | /* iDiag extAcc */ |
6597 | debugfs_remove(dentry: phba->idiag_ext_acc); |
6598 | phba->idiag_ext_acc = NULL; |
6599 | |
6600 | /* iDiag mbxAcc */ |
6601 | debugfs_remove(dentry: phba->idiag_mbx_acc); |
6602 | phba->idiag_mbx_acc = NULL; |
6603 | |
6604 | /* iDiag ctlAcc */ |
6605 | debugfs_remove(dentry: phba->idiag_ctl_acc); |
6606 | phba->idiag_ctl_acc = NULL; |
6607 | |
6608 | /* iDiag drbAcc */ |
6609 | debugfs_remove(dentry: phba->idiag_drb_acc); |
6610 | phba->idiag_drb_acc = NULL; |
6611 | |
6612 | /* iDiag queAcc */ |
6613 | debugfs_remove(dentry: phba->idiag_que_acc); |
6614 | phba->idiag_que_acc = NULL; |
6615 | |
6616 | /* iDiag queInfo */ |
6617 | debugfs_remove(dentry: phba->idiag_que_info); |
6618 | phba->idiag_que_info = NULL; |
6619 | |
6620 | /* iDiag barAcc */ |
6621 | debugfs_remove(dentry: phba->idiag_bar_acc); |
6622 | phba->idiag_bar_acc = NULL; |
6623 | |
6624 | /* iDiag pciCfg */ |
6625 | debugfs_remove(dentry: phba->idiag_pci_cfg); |
6626 | phba->idiag_pci_cfg = NULL; |
6627 | |
6628 | /* Finally remove the iDiag debugfs root */ |
6629 | debugfs_remove(dentry: phba->idiag_root); |
6630 | phba->idiag_root = NULL; |
6631 | } |
6632 | |
6633 | if (phba->hba_debugfs_root) { |
6634 | debugfs_remove(dentry: phba->hba_debugfs_root); /* fnX */ |
6635 | phba->hba_debugfs_root = NULL; |
6636 | atomic_dec(v: &lpfc_debugfs_hba_count); |
6637 | } |
6638 | |
6639 | if (atomic_read(v: &lpfc_debugfs_hba_count) == 0) { |
6640 | debugfs_remove(dentry: lpfc_debugfs_root); /* lpfc */ |
6641 | lpfc_debugfs_root = NULL; |
6642 | } |
6643 | } |
6644 | #endif |
6645 | return; |
6646 | } |
6647 | |
6648 | /* |
6649 | * Driver debug utility routines outside of debugfs. The debug utility |
6650 | * routines implemented here is intended to be used in the instrumented |
6651 | * debug driver for debugging host or port issues. |
6652 | */ |
6653 | |
6654 | /** |
6655 | * lpfc_debug_dump_all_queues - dump all the queues with a hba |
6656 | * @phba: Pointer to HBA context object. |
6657 | * |
6658 | * This function dumps entries of all the queues asociated with the @phba. |
6659 | **/ |
6660 | void |
6661 | lpfc_debug_dump_all_queues(struct lpfc_hba *phba) |
6662 | { |
6663 | int idx; |
6664 | |
6665 | /* |
6666 | * Dump Work Queues (WQs) |
6667 | */ |
6668 | lpfc_debug_dump_wq(phba, qtype: DUMP_MBX, wqidx: 0); |
6669 | lpfc_debug_dump_wq(phba, qtype: DUMP_ELS, wqidx: 0); |
6670 | lpfc_debug_dump_wq(phba, qtype: DUMP_NVMELS, wqidx: 0); |
6671 | |
6672 | for (idx = 0; idx < phba->cfg_hdw_queue; idx++) |
6673 | lpfc_debug_dump_wq(phba, qtype: DUMP_IO, wqidx: idx); |
6674 | |
6675 | lpfc_debug_dump_hdr_rq(phba); |
6676 | lpfc_debug_dump_dat_rq(phba); |
6677 | /* |
6678 | * Dump Complete Queues (CQs) |
6679 | */ |
6680 | lpfc_debug_dump_cq(phba, qtype: DUMP_MBX, wqidx: 0); |
6681 | lpfc_debug_dump_cq(phba, qtype: DUMP_ELS, wqidx: 0); |
6682 | lpfc_debug_dump_cq(phba, qtype: DUMP_NVMELS, wqidx: 0); |
6683 | |
6684 | for (idx = 0; idx < phba->cfg_hdw_queue; idx++) |
6685 | lpfc_debug_dump_cq(phba, qtype: DUMP_IO, wqidx: idx); |
6686 | |
6687 | /* |
6688 | * Dump Event Queues (EQs) |
6689 | */ |
6690 | for (idx = 0; idx < phba->cfg_hdw_queue; idx++) |
6691 | lpfc_debug_dump_hba_eq(phba, qidx: idx); |
6692 | } |
6693 | |