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