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858c9f6c JS |
1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
3 | * Fibre Channel Host Bus Adapters. * | |
f25e8e79 | 4 | * Copyright (C) 2007-2015 Emulex. All rights reserved. * |
858c9f6c JS |
5 | * EMULEX and SLI are trademarks of Emulex. * |
6 | * www.emulex.com * | |
7 | * * | |
8 | * This program is free software; you can redistribute it and/or * | |
9 | * modify it under the terms of version 2 of the GNU General * | |
10 | * Public License as published by the Free Software Foundation. * | |
11 | * This program is distributed in the hope that it will be useful. * | |
12 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
13 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
14 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
15 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
16 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
17 | * more details, a copy of which can be found in the file COPYING * | |
18 | * included with this package. * | |
19 | *******************************************************************/ | |
20 | ||
21 | #include <linux/blkdev.h> | |
22 | #include <linux/delay.h> | |
acf3368f | 23 | #include <linux/module.h> |
858c9f6c JS |
24 | #include <linux/dma-mapping.h> |
25 | #include <linux/idr.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/kthread.h> | |
5a0e3ad6 | 28 | #include <linux/slab.h> |
858c9f6c JS |
29 | #include <linux/pci.h> |
30 | #include <linux/spinlock.h> | |
31 | #include <linux/ctype.h> | |
858c9f6c JS |
32 | |
33 | #include <scsi/scsi.h> | |
34 | #include <scsi/scsi_device.h> | |
35 | #include <scsi/scsi_host.h> | |
36 | #include <scsi/scsi_transport_fc.h> | |
bd2cdd5e JS |
37 | #include <scsi/fc/fc_fs.h> |
38 | ||
39 | #include <linux/nvme-fc-driver.h> | |
858c9f6c | 40 | |
da0436e9 | 41 | #include "lpfc_hw4.h" |
858c9f6c JS |
42 | #include "lpfc_hw.h" |
43 | #include "lpfc_sli.h" | |
da0436e9 | 44 | #include "lpfc_sli4.h" |
ea2151b4 | 45 | #include "lpfc_nl.h" |
858c9f6c | 46 | #include "lpfc_disc.h" |
858c9f6c | 47 | #include "lpfc.h" |
bd2cdd5e JS |
48 | #include "lpfc_scsi.h" |
49 | #include "lpfc_nvme.h" | |
858c9f6c JS |
50 | #include "lpfc_logmsg.h" |
51 | #include "lpfc_crtn.h" | |
52 | #include "lpfc_vport.h" | |
53 | #include "lpfc_version.h" | |
c95d6c6c | 54 | #include "lpfc_compat.h" |
858c9f6c | 55 | #include "lpfc_debugfs.h" |
b76f2dc9 | 56 | #include "lpfc_bsg.h" |
858c9f6c | 57 | |
923e4b6a | 58 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
3621a710 | 59 | /* |
e59058c4 | 60 | * debugfs interface |
858c9f6c JS |
61 | * |
62 | * To access this interface the user should: | |
156f5a78 | 63 | * # mount -t debugfs none /sys/kernel/debug |
858c9f6c | 64 | * |
e59058c4 | 65 | * The lpfc debugfs directory hierarchy is: |
2a622bfb JS |
66 | * /sys/kernel/debug/lpfc/fnX/vportY |
67 | * where X is the lpfc hba function unique_id | |
858c9f6c JS |
68 | * where Y is the vport VPI on that hba |
69 | * | |
70 | * Debugging services available per vport: | |
71 | * discovery_trace | |
72 | * This is an ACSII readable file that contains a trace of the last | |
73 | * lpfc_debugfs_max_disc_trc events that happened on a specific vport. | |
e59058c4 JS |
74 | * See lpfc_debugfs.h for different categories of discovery events. |
75 | * To enable the discovery trace, the following module parameters must be set: | |
858c9f6c JS |
76 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support |
77 | * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for | |
78 | * EACH vport. X MUST also be a power of 2. | |
79 | * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in | |
80 | * lpfc_debugfs.h . | |
e59058c4 JS |
81 | * |
82 | * slow_ring_trace | |
83 | * This is an ACSII readable file that contains a trace of the last | |
84 | * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. | |
85 | * To enable the slow ring trace, the following module parameters must be set: | |
86 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support | |
87 | * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for | |
88 | * the HBA. X MUST also be a power of 2. | |
858c9f6c | 89 | */ |
51ef4c26 | 90 | static int lpfc_debugfs_enable = 1; |
ab56dc2e | 91 | module_param(lpfc_debugfs_enable, int, S_IRUGO); |
858c9f6c JS |
92 | MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); |
93 | ||
a58cbd52 | 94 | /* This MUST be a power of 2 */ |
c95d6c6c | 95 | static int lpfc_debugfs_max_disc_trc; |
ab56dc2e | 96 | module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); |
858c9f6c JS |
97 | MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, |
98 | "Set debugfs discovery trace depth"); | |
99 | ||
a58cbd52 | 100 | /* This MUST be a power of 2 */ |
c95d6c6c | 101 | static int lpfc_debugfs_max_slow_ring_trc; |
ab56dc2e | 102 | module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); |
a58cbd52 JS |
103 | MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, |
104 | "Set debugfs slow ring trace depth"); | |
105 | ||
bd2cdd5e JS |
106 | /* This MUST be a power of 2 */ |
107 | static int lpfc_debugfs_max_nvmeio_trc; | |
108 | module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444); | |
109 | MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc, | |
110 | "Set debugfs NVME IO trace depth"); | |
111 | ||
a257bf90 | 112 | static int lpfc_debugfs_mask_disc_trc; |
ab56dc2e | 113 | module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); |
858c9f6c JS |
114 | MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, |
115 | "Set debugfs discovery trace mask"); | |
116 | ||
117 | #include <linux/debugfs.h> | |
118 | ||
311464ec JS |
119 | static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); |
120 | static unsigned long lpfc_debugfs_start_time = 0L; | |
858c9f6c | 121 | |
2a622bfb JS |
122 | /* iDiag */ |
123 | static struct lpfc_idiag idiag; | |
124 | ||
e59058c4 | 125 | /** |
3621a710 | 126 | * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer |
e59058c4 JS |
127 | * @vport: The vport to gather the log info from. |
128 | * @buf: The buffer to dump log into. | |
129 | * @size: The maximum amount of data to process. | |
130 | * | |
131 | * Description: | |
132 | * This routine gathers the lpfc discovery debugfs data from the @vport and | |
133 | * dumps it to @buf up to @size number of bytes. It will start at the next entry | |
134 | * in the log and process the log until the end of the buffer. Then it will | |
135 | * gather from the beginning of the log and process until the current entry. | |
136 | * | |
137 | * Notes: | |
138 | * Discovery logging will be disabled while while this routine dumps the log. | |
139 | * | |
140 | * Return Value: | |
141 | * This routine returns the amount of bytes that were dumped into @buf and will | |
142 | * not exceed @size. | |
143 | **/ | |
858c9f6c JS |
144 | static int |
145 | lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) | |
146 | { | |
147 | int i, index, len, enable; | |
148 | uint32_t ms; | |
a58cbd52 | 149 | struct lpfc_debugfs_trc *dtp; |
b76f2dc9 JS |
150 | char *buffer; |
151 | ||
152 | buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); | |
153 | if (!buffer) | |
154 | return 0; | |
858c9f6c | 155 | |
858c9f6c JS |
156 | enable = lpfc_debugfs_enable; |
157 | lpfc_debugfs_enable = 0; | |
158 | ||
159 | len = 0; | |
160 | index = (atomic_read(&vport->disc_trc_cnt) + 1) & | |
161 | (lpfc_debugfs_max_disc_trc - 1); | |
162 | for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { | |
163 | dtp = vport->disc_trc + i; | |
164 | if (!dtp->fmt) | |
165 | continue; | |
166 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
a58cbd52 JS |
167 | snprintf(buffer, |
168 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
858c9f6c JS |
169 | dtp->seq_cnt, ms, dtp->fmt); |
170 | len += snprintf(buf+len, size-len, buffer, | |
171 | dtp->data1, dtp->data2, dtp->data3); | |
172 | } | |
173 | for (i = 0; i < index; i++) { | |
174 | dtp = vport->disc_trc + i; | |
175 | if (!dtp->fmt) | |
176 | continue; | |
177 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
a58cbd52 JS |
178 | snprintf(buffer, |
179 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
180 | dtp->seq_cnt, ms, dtp->fmt); | |
181 | len += snprintf(buf+len, size-len, buffer, | |
182 | dtp->data1, dtp->data2, dtp->data3); | |
183 | } | |
184 | ||
185 | lpfc_debugfs_enable = enable; | |
b76f2dc9 JS |
186 | kfree(buffer); |
187 | ||
a58cbd52 JS |
188 | return len; |
189 | } | |
190 | ||
e59058c4 | 191 | /** |
3621a710 | 192 | * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer |
e59058c4 JS |
193 | * @phba: The HBA to gather the log info from. |
194 | * @buf: The buffer to dump log into. | |
195 | * @size: The maximum amount of data to process. | |
196 | * | |
197 | * Description: | |
198 | * This routine gathers the lpfc slow ring debugfs data from the @phba and | |
199 | * dumps it to @buf up to @size number of bytes. It will start at the next entry | |
200 | * in the log and process the log until the end of the buffer. Then it will | |
201 | * gather from the beginning of the log and process until the current entry. | |
202 | * | |
203 | * Notes: | |
204 | * Slow ring logging will be disabled while while this routine dumps the log. | |
205 | * | |
206 | * Return Value: | |
207 | * This routine returns the amount of bytes that were dumped into @buf and will | |
208 | * not exceed @size. | |
209 | **/ | |
a58cbd52 JS |
210 | static int |
211 | lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) | |
212 | { | |
213 | int i, index, len, enable; | |
214 | uint32_t ms; | |
215 | struct lpfc_debugfs_trc *dtp; | |
b76f2dc9 | 216 | char *buffer; |
a58cbd52 | 217 | |
b76f2dc9 JS |
218 | buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); |
219 | if (!buffer) | |
220 | return 0; | |
a58cbd52 JS |
221 | |
222 | enable = lpfc_debugfs_enable; | |
223 | lpfc_debugfs_enable = 0; | |
224 | ||
225 | len = 0; | |
226 | index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & | |
227 | (lpfc_debugfs_max_slow_ring_trc - 1); | |
228 | for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { | |
229 | dtp = phba->slow_ring_trc + i; | |
230 | if (!dtp->fmt) | |
231 | continue; | |
232 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
233 | snprintf(buffer, | |
234 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
235 | dtp->seq_cnt, ms, dtp->fmt); | |
236 | len += snprintf(buf+len, size-len, buffer, | |
237 | dtp->data1, dtp->data2, dtp->data3); | |
238 | } | |
239 | for (i = 0; i < index; i++) { | |
240 | dtp = phba->slow_ring_trc + i; | |
241 | if (!dtp->fmt) | |
242 | continue; | |
243 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
244 | snprintf(buffer, | |
245 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
858c9f6c JS |
246 | dtp->seq_cnt, ms, dtp->fmt); |
247 | len += snprintf(buf+len, size-len, buffer, | |
248 | dtp->data1, dtp->data2, dtp->data3); | |
249 | } | |
250 | ||
251 | lpfc_debugfs_enable = enable; | |
b76f2dc9 JS |
252 | kfree(buffer); |
253 | ||
858c9f6c JS |
254 | return len; |
255 | } | |
256 | ||
311464ec | 257 | static int lpfc_debugfs_last_hbq = -1; |
78b2d852 | 258 | |
e59058c4 | 259 | /** |
3621a710 | 260 | * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer |
e59058c4 JS |
261 | * @phba: The HBA to gather host buffer info from. |
262 | * @buf: The buffer to dump log into. | |
263 | * @size: The maximum amount of data to process. | |
264 | * | |
265 | * Description: | |
266 | * This routine dumps the host buffer queue info from the @phba to @buf up to | |
267 | * @size number of bytes. A header that describes the current hbq state will be | |
268 | * dumped to @buf first and then info on each hbq entry will be dumped to @buf | |
269 | * until @size bytes have been dumped or all the hbq info has been dumped. | |
270 | * | |
271 | * Notes: | |
272 | * This routine will rotate through each configured HBQ each time called. | |
273 | * | |
274 | * Return Value: | |
275 | * This routine returns the amount of bytes that were dumped into @buf and will | |
276 | * not exceed @size. | |
277 | **/ | |
78b2d852 JS |
278 | static int |
279 | lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) | |
280 | { | |
281 | int len = 0; | |
eb016566 | 282 | int i, j, found, posted, low; |
78b2d852 JS |
283 | uint32_t phys, raw_index, getidx; |
284 | struct lpfc_hbq_init *hip; | |
285 | struct hbq_s *hbqs; | |
286 | struct lpfc_hbq_entry *hbqe; | |
287 | struct lpfc_dmabuf *d_buf; | |
288 | struct hbq_dmabuf *hbq_buf; | |
289 | ||
3772a991 JS |
290 | if (phba->sli_rev != 3) |
291 | return 0; | |
eb016566 | 292 | |
78b2d852 JS |
293 | spin_lock_irq(&phba->hbalock); |
294 | ||
295 | /* toggle between multiple hbqs, if any */ | |
296 | i = lpfc_sli_hbq_count(); | |
297 | if (i > 1) { | |
298 | lpfc_debugfs_last_hbq++; | |
299 | if (lpfc_debugfs_last_hbq >= i) | |
300 | lpfc_debugfs_last_hbq = 0; | |
301 | } | |
302 | else | |
303 | lpfc_debugfs_last_hbq = 0; | |
304 | ||
305 | i = lpfc_debugfs_last_hbq; | |
306 | ||
307 | len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); | |
308 | ||
51ef4c26 | 309 | hbqs = &phba->hbqs[i]; |
78b2d852 | 310 | posted = 0; |
51ef4c26 | 311 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) |
78b2d852 JS |
312 | posted++; |
313 | ||
314 | hip = lpfc_hbq_defs[i]; | |
315 | len += snprintf(buf+len, size-len, | |
316 | "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", | |
317 | hip->hbq_index, hip->profile, hip->rn, | |
318 | hip->buffer_count, hip->init_count, hip->add_count, posted); | |
319 | ||
78b2d852 JS |
320 | raw_index = phba->hbq_get[i]; |
321 | getidx = le32_to_cpu(raw_index); | |
322 | len += snprintf(buf+len, size-len, | |
a8adb832 JS |
323 | "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", |
324 | hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, | |
325 | hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); | |
78b2d852 | 326 | |
51ef4c26 | 327 | hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; |
78b2d852 JS |
328 | for (j=0; j<hbqs->entry_count; j++) { |
329 | len += snprintf(buf+len, size-len, | |
330 | "%03d: %08x %04x %05x ", j, | |
a8adb832 JS |
331 | le32_to_cpu(hbqe->bde.addrLow), |
332 | le32_to_cpu(hbqe->bde.tus.w), | |
333 | le32_to_cpu(hbqe->buffer_tag)); | |
78b2d852 JS |
334 | i = 0; |
335 | found = 0; | |
336 | ||
337 | /* First calculate if slot has an associated posted buffer */ | |
338 | low = hbqs->hbqPutIdx - posted; | |
339 | if (low >= 0) { | |
340 | if ((j >= hbqs->hbqPutIdx) || (j < low)) { | |
341 | len += snprintf(buf+len, size-len, "Unused\n"); | |
342 | goto skipit; | |
343 | } | |
344 | } | |
345 | else { | |
346 | if ((j >= hbqs->hbqPutIdx) && | |
347 | (j < (hbqs->entry_count+low))) { | |
348 | len += snprintf(buf+len, size-len, "Unused\n"); | |
349 | goto skipit; | |
350 | } | |
351 | } | |
352 | ||
353 | /* Get the Buffer info for the posted buffer */ | |
51ef4c26 | 354 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { |
78b2d852 JS |
355 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
356 | phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); | |
a8adb832 | 357 | if (phys == le32_to_cpu(hbqe->bde.addrLow)) { |
78b2d852 JS |
358 | len += snprintf(buf+len, size-len, |
359 | "Buf%d: %p %06x\n", i, | |
360 | hbq_buf->dbuf.virt, hbq_buf->tag); | |
361 | found = 1; | |
362 | break; | |
363 | } | |
364 | i++; | |
365 | } | |
366 | if (!found) { | |
367 | len += snprintf(buf+len, size-len, "No DMAinfo?\n"); | |
368 | } | |
369 | skipit: | |
370 | hbqe++; | |
371 | if (len > LPFC_HBQINFO_SIZE - 54) | |
372 | break; | |
373 | } | |
374 | spin_unlock_irq(&phba->hbalock); | |
375 | return len; | |
376 | } | |
377 | ||
c95d6c6c JS |
378 | static int lpfc_debugfs_last_hba_slim_off; |
379 | ||
e59058c4 | 380 | /** |
3621a710 | 381 | * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer |
e59058c4 JS |
382 | * @phba: The HBA to gather SLIM info from. |
383 | * @buf: The buffer to dump log into. | |
384 | * @size: The maximum amount of data to process. | |
385 | * | |
386 | * Description: | |
387 | * This routine dumps the current contents of HBA SLIM for the HBA associated | |
388 | * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. | |
389 | * | |
390 | * Notes: | |
391 | * This routine will only dump up to 1024 bytes of data each time called and | |
392 | * should be called multiple times to dump the entire HBA SLIM. | |
393 | * | |
394 | * Return Value: | |
395 | * This routine returns the amount of bytes that were dumped into @buf and will | |
396 | * not exceed @size. | |
397 | **/ | |
c95d6c6c JS |
398 | static int |
399 | lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) | |
400 | { | |
401 | int len = 0; | |
402 | int i, off; | |
403 | uint32_t *ptr; | |
b76f2dc9 JS |
404 | char *buffer; |
405 | ||
406 | buffer = kmalloc(1024, GFP_KERNEL); | |
407 | if (!buffer) | |
408 | return 0; | |
c95d6c6c JS |
409 | |
410 | off = 0; | |
411 | spin_lock_irq(&phba->hbalock); | |
412 | ||
413 | len += snprintf(buf+len, size-len, "HBA SLIM\n"); | |
414 | lpfc_memcpy_from_slim(buffer, | |
a257bf90 | 415 | phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); |
c95d6c6c JS |
416 | |
417 | ptr = (uint32_t *)&buffer[0]; | |
418 | off = lpfc_debugfs_last_hba_slim_off; | |
419 | ||
420 | /* Set it up for the next time */ | |
421 | lpfc_debugfs_last_hba_slim_off += 1024; | |
422 | if (lpfc_debugfs_last_hba_slim_off >= 4096) | |
423 | lpfc_debugfs_last_hba_slim_off = 0; | |
424 | ||
425 | i = 1024; | |
426 | while (i > 0) { | |
427 | len += snprintf(buf+len, size-len, | |
428 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", | |
429 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), | |
430 | *(ptr+5), *(ptr+6), *(ptr+7)); | |
431 | ptr += 8; | |
432 | i -= (8 * sizeof(uint32_t)); | |
433 | off += (8 * sizeof(uint32_t)); | |
434 | } | |
435 | ||
436 | spin_unlock_irq(&phba->hbalock); | |
b76f2dc9 JS |
437 | kfree(buffer); |
438 | ||
c95d6c6c JS |
439 | return len; |
440 | } | |
441 | ||
e59058c4 | 442 | /** |
3621a710 | 443 | * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer |
e59058c4 JS |
444 | * @phba: The HBA to gather Host SLIM info from. |
445 | * @buf: The buffer to dump log into. | |
446 | * @size: The maximum amount of data to process. | |
447 | * | |
448 | * Description: | |
449 | * This routine dumps the current contents of host SLIM for the host associated | |
450 | * with @phba to @buf up to @size bytes of data. The dump will contain the | |
451 | * Mailbox, PCB, Rings, and Registers that are located in host memory. | |
452 | * | |
453 | * Return Value: | |
454 | * This routine returns the amount of bytes that were dumped into @buf and will | |
455 | * not exceed @size. | |
456 | **/ | |
a58cbd52 | 457 | static int |
c95d6c6c | 458 | lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) |
a58cbd52 JS |
459 | { |
460 | int len = 0; | |
c95d6c6c | 461 | int i, off; |
a58cbd52 JS |
462 | uint32_t word0, word1, word2, word3; |
463 | uint32_t *ptr; | |
464 | struct lpfc_pgp *pgpp; | |
465 | struct lpfc_sli *psli = &phba->sli; | |
466 | struct lpfc_sli_ring *pring; | |
467 | ||
a58cbd52 JS |
468 | off = 0; |
469 | spin_lock_irq(&phba->hbalock); | |
470 | ||
471 | len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); | |
34b02dcd | 472 | ptr = (uint32_t *)phba->slim2p.virt; |
a58cbd52 JS |
473 | i = sizeof(MAILBOX_t); |
474 | while (i > 0) { | |
475 | len += snprintf(buf+len, size-len, | |
476 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", | |
477 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), | |
478 | *(ptr+5), *(ptr+6), *(ptr+7)); | |
479 | ptr += 8; | |
480 | i -= (8 * sizeof(uint32_t)); | |
481 | off += (8 * sizeof(uint32_t)); | |
482 | } | |
483 | ||
484 | len += snprintf(buf+len, size-len, "SLIM PCB\n"); | |
34b02dcd | 485 | ptr = (uint32_t *)phba->pcb; |
a58cbd52 JS |
486 | i = sizeof(PCB_t); |
487 | while (i > 0) { | |
488 | len += snprintf(buf+len, size-len, | |
489 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", | |
490 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), | |
491 | *(ptr+5), *(ptr+6), *(ptr+7)); | |
492 | ptr += 8; | |
493 | i -= (8 * sizeof(uint32_t)); | |
494 | off += (8 * sizeof(uint32_t)); | |
495 | } | |
496 | ||
3772a991 | 497 | if (phba->sli_rev <= LPFC_SLI_REV3) { |
895427bd JS |
498 | for (i = 0; i < 4; i++) { |
499 | pgpp = &phba->port_gp[i]; | |
500 | pring = &psli->sli3_ring[i]; | |
501 | len += snprintf(buf+len, size-len, | |
502 | "Ring %d: CMD GetInx:%d " | |
503 | "(Max:%d Next:%d " | |
504 | "Local:%d flg:x%x) " | |
505 | "RSP PutInx:%d Max:%d\n", | |
506 | i, pgpp->cmdGetInx, | |
507 | pring->sli.sli3.numCiocb, | |
508 | pring->sli.sli3.next_cmdidx, | |
509 | pring->sli.sli3.local_getidx, | |
510 | pring->flag, pgpp->rspPutInx, | |
511 | pring->sli.sli3.numRiocb); | |
512 | } | |
513 | ||
3772a991 JS |
514 | word0 = readl(phba->HAregaddr); |
515 | word1 = readl(phba->CAregaddr); | |
516 | word2 = readl(phba->HSregaddr); | |
517 | word3 = readl(phba->HCregaddr); | |
518 | len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " | |
519 | "HC:%08x\n", word0, word1, word2, word3); | |
520 | } | |
a58cbd52 JS |
521 | spin_unlock_irq(&phba->hbalock); |
522 | return len; | |
523 | } | |
524 | ||
e59058c4 | 525 | /** |
3621a710 | 526 | * lpfc_debugfs_nodelist_data - Dump target node list to a buffer |
e59058c4 JS |
527 | * @vport: The vport to gather target node info from. |
528 | * @buf: The buffer to dump log into. | |
529 | * @size: The maximum amount of data to process. | |
530 | * | |
531 | * Description: | |
532 | * This routine dumps the current target node list associated with @vport to | |
533 | * @buf up to @size bytes of data. Each node entry in the dump will contain a | |
534 | * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. | |
535 | * | |
536 | * Return Value: | |
537 | * This routine returns the amount of bytes that were dumped into @buf and will | |
538 | * not exceed @size. | |
539 | **/ | |
858c9f6c JS |
540 | static int |
541 | lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) | |
542 | { | |
543 | int len = 0; | |
544 | int cnt; | |
545 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
546 | struct lpfc_nodelist *ndlp; | |
2ea259ee | 547 | unsigned char *statep; |
bd2cdd5e JS |
548 | struct nvme_fc_local_port *localport; |
549 | struct lpfc_nvme_lport *lport; | |
550 | struct lpfc_nvme_rport *rport; | |
551 | struct nvme_fc_remote_port *nrport; | |
858c9f6c JS |
552 | |
553 | cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); | |
554 | ||
895427bd | 555 | len += snprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n"); |
858c9f6c JS |
556 | spin_lock_irq(shost->host_lock); |
557 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { | |
558 | if (!cnt) { | |
559 | len += snprintf(buf+len, size-len, | |
560 | "Missing Nodelist Entries\n"); | |
561 | break; | |
562 | } | |
563 | cnt--; | |
564 | switch (ndlp->nlp_state) { | |
565 | case NLP_STE_UNUSED_NODE: | |
566 | statep = "UNUSED"; | |
567 | break; | |
568 | case NLP_STE_PLOGI_ISSUE: | |
569 | statep = "PLOGI "; | |
570 | break; | |
571 | case NLP_STE_ADISC_ISSUE: | |
572 | statep = "ADISC "; | |
573 | break; | |
574 | case NLP_STE_REG_LOGIN_ISSUE: | |
575 | statep = "REGLOG"; | |
576 | break; | |
577 | case NLP_STE_PRLI_ISSUE: | |
578 | statep = "PRLI "; | |
579 | break; | |
086a345f JS |
580 | case NLP_STE_LOGO_ISSUE: |
581 | statep = "LOGO "; | |
582 | break; | |
858c9f6c JS |
583 | case NLP_STE_UNMAPPED_NODE: |
584 | statep = "UNMAP "; | |
585 | break; | |
586 | case NLP_STE_MAPPED_NODE: | |
587 | statep = "MAPPED"; | |
588 | break; | |
589 | case NLP_STE_NPR_NODE: | |
590 | statep = "NPR "; | |
591 | break; | |
592 | default: | |
593 | statep = "UNKNOWN"; | |
594 | } | |
2ea259ee JS |
595 | len += snprintf(buf+len, size-len, "%s DID:x%06x ", |
596 | statep, ndlp->nlp_DID); | |
597 | len += snprintf(buf+len, size-len, | |
598 | "WWPN x%llx ", | |
599 | wwn_to_u64(ndlp->nlp_portname.u.wwn)); | |
600 | len += snprintf(buf+len, size-len, | |
601 | "WWNN x%llx ", | |
602 | wwn_to_u64(ndlp->nlp_nodename.u.wwn)); | |
086a345f | 603 | if (ndlp->nlp_flag & NLP_RPI_REGISTERED) |
2ea259ee JS |
604 | len += snprintf(buf+len, size-len, "RPI:%03d ", |
605 | ndlp->nlp_rpi); | |
086a345f | 606 | else |
2ea259ee | 607 | len += snprintf(buf+len, size-len, "RPI:none "); |
086a345f JS |
608 | len += snprintf(buf+len, size-len, "flag:x%08x ", |
609 | ndlp->nlp_flag); | |
858c9f6c | 610 | if (!ndlp->nlp_type) |
2ea259ee | 611 | len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); |
858c9f6c | 612 | if (ndlp->nlp_type & NLP_FC_NODE) |
2ea259ee | 613 | len += snprintf(buf+len, size-len, "FC_NODE "); |
858c9f6c | 614 | if (ndlp->nlp_type & NLP_FABRIC) |
2ea259ee | 615 | len += snprintf(buf+len, size-len, "FABRIC "); |
858c9f6c | 616 | if (ndlp->nlp_type & NLP_FCP_TARGET) |
2ea259ee | 617 | len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", |
858c9f6c JS |
618 | ndlp->nlp_sid); |
619 | if (ndlp->nlp_type & NLP_FCP_INITIATOR) | |
2ea259ee | 620 | len += snprintf(buf+len, size-len, "FCP_INITIATOR "); |
58da1ffb JS |
621 | len += snprintf(buf+len, size-len, "usgmap:%x ", |
622 | ndlp->nlp_usg_map); | |
a58cbd52 | 623 | len += snprintf(buf+len, size-len, "refcnt:%x", |
2c935bc5 | 624 | kref_read(&ndlp->kref)); |
858c9f6c JS |
625 | len += snprintf(buf+len, size-len, "\n"); |
626 | } | |
627 | spin_unlock_irq(shost->host_lock); | |
2ea259ee | 628 | |
bd2cdd5e JS |
629 | len += snprintf(buf + len, size - len, |
630 | "\nNVME Lport/Rport Entries ...\n"); | |
631 | ||
632 | localport = vport->localport; | |
633 | if (!localport) | |
634 | goto out_exit; | |
635 | ||
636 | spin_lock_irq(shost->host_lock); | |
637 | lport = (struct lpfc_nvme_lport *)localport->private; | |
638 | ||
639 | /* Port state is only one of two values for now. */ | |
640 | if (localport->port_id) | |
641 | statep = "ONLINE"; | |
642 | else | |
643 | statep = "UNKNOWN "; | |
644 | ||
645 | len += snprintf(buf + len, size - len, | |
646 | "Lport DID x%06x PortState %s\n", | |
647 | localport->port_id, statep); | |
648 | ||
649 | len += snprintf(buf + len, size - len, "\tRport List:\n"); | |
650 | list_for_each_entry(rport, &lport->rport_list, list) { | |
651 | /* local short-hand pointer. */ | |
652 | nrport = rport->remoteport; | |
653 | ||
654 | /* Port state is only one of two values for now. */ | |
655 | switch (nrport->port_state) { | |
656 | case FC_OBJSTATE_ONLINE: | |
657 | statep = "ONLINE"; | |
658 | break; | |
659 | case FC_OBJSTATE_UNKNOWN: | |
660 | statep = "UNKNOWN "; | |
661 | break; | |
662 | default: | |
663 | statep = "UNSUPPORTED"; | |
664 | break; | |
665 | } | |
666 | ||
667 | /* Tab in to show lport ownership. */ | |
668 | len += snprintf(buf + len, size - len, | |
669 | "\t%s Port ID:x%06x ", | |
670 | statep, nrport->port_id); | |
671 | len += snprintf(buf + len, size - len, "WWPN x%llx ", | |
672 | nrport->port_name); | |
673 | len += snprintf(buf + len, size - len, "WWNN x%llx ", | |
674 | nrport->node_name); | |
675 | switch (nrport->port_role) { | |
676 | case FC_PORT_ROLE_NVME_INITIATOR: | |
677 | len += snprintf(buf + len, size - len, | |
678 | "NVME INITIATOR "); | |
679 | break; | |
680 | case FC_PORT_ROLE_NVME_TARGET: | |
681 | len += snprintf(buf + len, size - len, | |
682 | "NVME TARGET "); | |
683 | break; | |
684 | case FC_PORT_ROLE_NVME_DISCOVERY: | |
685 | len += snprintf(buf + len, size - len, | |
686 | "NVME DISCOVERY "); | |
687 | break; | |
688 | default: | |
689 | len += snprintf(buf + len, size - len, | |
690 | "UNKNOWN ROLE x%x", | |
691 | nrport->port_role); | |
692 | break; | |
693 | } | |
694 | ||
695 | /* Terminate the string. */ | |
696 | len += snprintf(buf + len, size - len, "\n"); | |
697 | } | |
698 | ||
699 | spin_unlock_irq(shost->host_lock); | |
700 | out_exit: | |
701 | return len; | |
702 | } | |
703 | ||
704 | /** | |
705 | * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer | |
706 | * @vport: The vport to gather target node info from. | |
707 | * @buf: The buffer to dump log into. | |
708 | * @size: The maximum amount of data to process. | |
709 | * | |
710 | * Description: | |
711 | * This routine dumps the NVME statistics associated with @vport | |
712 | * | |
713 | * Return Value: | |
714 | * This routine returns the amount of bytes that were dumped into @buf and will | |
715 | * not exceed @size. | |
716 | **/ | |
717 | static int | |
718 | lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size) | |
719 | { | |
720 | struct lpfc_hba *phba = vport->phba; | |
721 | int len = 0; | |
722 | ||
723 | if (phba->nvmet_support == 0) { | |
724 | if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) | |
725 | return len; | |
726 | ||
727 | len += snprintf(buf + len, size - len, | |
728 | "\nNVME Lport Statistics\n"); | |
729 | ||
730 | len += snprintf(buf + len, size - len, | |
731 | "LS: Xmt %016llx Cmpl %016llx\n", | |
732 | phba->fc4NvmeLsRequests, | |
733 | phba->fc4NvmeLsCmpls); | |
734 | ||
735 | len += snprintf(buf + len, size - len, | |
736 | "FCP: Rd %016llx Wr %016llx IO %016llx\n", | |
737 | phba->fc4NvmeInputRequests, | |
738 | phba->fc4NvmeOutputRequests, | |
739 | phba->fc4NvmeControlRequests); | |
740 | ||
741 | len += snprintf(buf + len, size - len, | |
742 | " Cmpl %016llx\n", phba->fc4NvmeIoCmpls); | |
743 | } | |
744 | ||
745 | return len; | |
746 | } | |
747 | ||
748 | ||
749 | /** | |
750 | * lpfc_debugfs_nvmektime_data - Dump target node list to a buffer | |
751 | * @vport: The vport to gather target node info from. | |
752 | * @buf: The buffer to dump log into. | |
753 | * @size: The maximum amount of data to process. | |
754 | * | |
755 | * Description: | |
756 | * This routine dumps the NVME statistics associated with @vport | |
757 | * | |
758 | * Return Value: | |
759 | * This routine returns the amount of bytes that were dumped into @buf and will | |
760 | * not exceed @size. | |
761 | **/ | |
762 | static int | |
763 | lpfc_debugfs_nvmektime_data(struct lpfc_vport *vport, char *buf, int size) | |
764 | { | |
765 | struct lpfc_hba *phba = vport->phba; | |
766 | int len = 0; | |
767 | ||
768 | if (phba->nvmet_support == 0) { | |
769 | /* NVME Initiator */ | |
770 | len += snprintf(buf + len, PAGE_SIZE - len, | |
771 | "ktime %s: Total Samples: %lld\n", | |
772 | (phba->ktime_on ? "Enabled" : "Disabled"), | |
773 | phba->ktime_data_samples); | |
774 | if (phba->ktime_data_samples == 0) | |
775 | return len; | |
776 | ||
777 | len += snprintf( | |
778 | buf + len, PAGE_SIZE - len, | |
779 | "Segment 1: Last NVME Cmd cmpl " | |
780 | "done -to- Start of next NVME cnd (in driver)\n"); | |
781 | len += snprintf( | |
782 | buf + len, PAGE_SIZE - len, | |
783 | "avg:%08lld min:%08lld max %08lld\n", | |
784 | phba->ktime_seg1_total / | |
785 | phba->ktime_data_samples, | |
786 | phba->ktime_seg1_min, | |
787 | phba->ktime_seg1_max); | |
788 | len += snprintf( | |
789 | buf + len, PAGE_SIZE - len, | |
790 | "Segment 2: Driver start of NVME cmd " | |
791 | "-to- Firmware WQ doorbell\n"); | |
792 | len += snprintf( | |
793 | buf + len, PAGE_SIZE - len, | |
794 | "avg:%08lld min:%08lld max %08lld\n", | |
795 | phba->ktime_seg2_total / | |
796 | phba->ktime_data_samples, | |
797 | phba->ktime_seg2_min, | |
798 | phba->ktime_seg2_max); | |
799 | len += snprintf( | |
800 | buf + len, PAGE_SIZE - len, | |
801 | "Segment 3: Firmware WQ doorbell -to- " | |
802 | "MSI-X ISR cmpl\n"); | |
803 | len += snprintf( | |
804 | buf + len, PAGE_SIZE - len, | |
805 | "avg:%08lld min:%08lld max %08lld\n", | |
806 | phba->ktime_seg3_total / | |
807 | phba->ktime_data_samples, | |
808 | phba->ktime_seg3_min, | |
809 | phba->ktime_seg3_max); | |
810 | len += snprintf( | |
811 | buf + len, PAGE_SIZE - len, | |
812 | "Segment 4: MSI-X ISR cmpl -to- " | |
813 | "NVME cmpl done\n"); | |
814 | len += snprintf( | |
815 | buf + len, PAGE_SIZE - len, | |
816 | "avg:%08lld min:%08lld max %08lld\n", | |
817 | phba->ktime_seg4_total / | |
818 | phba->ktime_data_samples, | |
819 | phba->ktime_seg4_min, | |
820 | phba->ktime_seg4_max); | |
821 | len += snprintf( | |
822 | buf + len, PAGE_SIZE - len, | |
823 | "Total IO avg time: %08lld\n", | |
824 | ((phba->ktime_seg1_total + | |
825 | phba->ktime_seg2_total + | |
826 | phba->ktime_seg3_total + | |
827 | phba->ktime_seg4_total) / | |
828 | phba->ktime_data_samples)); | |
829 | return len; | |
830 | } | |
bd2cdd5e JS |
831 | return len; |
832 | } | |
833 | ||
834 | /** | |
835 | * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer | |
836 | * @phba: The phba to gather target node info from. | |
837 | * @buf: The buffer to dump log into. | |
838 | * @size: The maximum amount of data to process. | |
839 | * | |
840 | * Description: | |
841 | * This routine dumps the NVME IO trace associated with @phba | |
842 | * | |
843 | * Return Value: | |
844 | * This routine returns the amount of bytes that were dumped into @buf and will | |
845 | * not exceed @size. | |
846 | **/ | |
847 | static int | |
848 | lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size) | |
849 | { | |
850 | struct lpfc_debugfs_nvmeio_trc *dtp; | |
851 | int i, state, index, skip; | |
852 | int len = 0; | |
853 | ||
854 | state = phba->nvmeio_trc_on; | |
855 | ||
856 | index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) & | |
857 | (phba->nvmeio_trc_size - 1); | |
858 | skip = phba->nvmeio_trc_output_idx; | |
859 | ||
860 | len += snprintf(buf + len, size - len, | |
861 | "%s IO Trace %s: next_idx %d skip %d size %d\n", | |
862 | (phba->nvmet_support ? "NVME" : "NVMET"), | |
863 | (state ? "Enabled" : "Disabled"), | |
864 | index, skip, phba->nvmeio_trc_size); | |
865 | ||
866 | if (!phba->nvmeio_trc || state) | |
867 | return len; | |
868 | ||
869 | /* trace MUST bhe off to continue */ | |
870 | ||
871 | for (i = index; i < phba->nvmeio_trc_size; i++) { | |
872 | if (skip) { | |
873 | skip--; | |
874 | continue; | |
875 | } | |
876 | dtp = phba->nvmeio_trc + i; | |
877 | phba->nvmeio_trc_output_idx++; | |
878 | ||
879 | if (!dtp->fmt) | |
880 | continue; | |
881 | ||
882 | len += snprintf(buf + len, size - len, dtp->fmt, | |
883 | dtp->data1, dtp->data2, dtp->data3); | |
884 | ||
885 | if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { | |
886 | phba->nvmeio_trc_output_idx = 0; | |
887 | len += snprintf(buf + len, size - len, | |
888 | "Trace Complete\n"); | |
889 | goto out; | |
890 | } | |
891 | ||
892 | if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { | |
893 | len += snprintf(buf + len, size - len, | |
894 | "Trace Continue (%d of %d)\n", | |
895 | phba->nvmeio_trc_output_idx, | |
896 | phba->nvmeio_trc_size); | |
897 | goto out; | |
898 | } | |
899 | } | |
900 | for (i = 0; i < index; i++) { | |
901 | if (skip) { | |
902 | skip--; | |
903 | continue; | |
904 | } | |
905 | dtp = phba->nvmeio_trc + i; | |
906 | phba->nvmeio_trc_output_idx++; | |
907 | ||
908 | if (!dtp->fmt) | |
909 | continue; | |
910 | ||
911 | len += snprintf(buf + len, size - len, dtp->fmt, | |
912 | dtp->data1, dtp->data2, dtp->data3); | |
913 | ||
914 | if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) { | |
915 | phba->nvmeio_trc_output_idx = 0; | |
916 | len += snprintf(buf + len, size - len, | |
917 | "Trace Complete\n"); | |
918 | goto out; | |
919 | } | |
920 | ||
921 | if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) { | |
922 | len += snprintf(buf + len, size - len, | |
923 | "Trace Continue (%d of %d)\n", | |
924 | phba->nvmeio_trc_output_idx, | |
925 | phba->nvmeio_trc_size); | |
926 | goto out; | |
927 | } | |
928 | } | |
929 | ||
930 | len += snprintf(buf + len, size - len, | |
931 | "Trace Done\n"); | |
932 | out: | |
933 | return len; | |
934 | } | |
935 | ||
936 | /** | |
937 | * lpfc_debugfs_cpucheck_data - Dump target node list to a buffer | |
938 | * @vport: The vport to gather target node info from. | |
939 | * @buf: The buffer to dump log into. | |
940 | * @size: The maximum amount of data to process. | |
941 | * | |
942 | * Description: | |
943 | * This routine dumps the NVME statistics associated with @vport | |
944 | * | |
945 | * Return Value: | |
946 | * This routine returns the amount of bytes that were dumped into @buf and will | |
947 | * not exceed @size. | |
948 | **/ | |
949 | static int | |
950 | lpfc_debugfs_cpucheck_data(struct lpfc_vport *vport, char *buf, int size) | |
951 | { | |
952 | struct lpfc_hba *phba = vport->phba; | |
953 | int i; | |
954 | int len = 0; | |
955 | uint32_t tot_xmt = 0; | |
956 | uint32_t tot_cmpl = 0; | |
957 | ||
958 | if (phba->nvmet_support == 0) { | |
959 | /* NVME Initiator */ | |
960 | len += snprintf(buf + len, PAGE_SIZE - len, | |
961 | "CPUcheck %s\n", | |
962 | (phba->cpucheck_on & LPFC_CHECK_NVME_IO ? | |
963 | "Enabled" : "Disabled")); | |
964 | for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { | |
965 | if (i >= LPFC_CHECK_CPU_CNT) | |
966 | break; | |
967 | len += snprintf(buf + len, PAGE_SIZE - len, | |
968 | "%02d: xmit x%08x cmpl x%08x\n", | |
969 | i, phba->cpucheck_xmt_io[i], | |
970 | phba->cpucheck_cmpl_io[i]); | |
971 | tot_xmt += phba->cpucheck_xmt_io[i]; | |
972 | tot_cmpl += phba->cpucheck_cmpl_io[i]; | |
973 | } | |
974 | len += snprintf(buf + len, PAGE_SIZE - len, | |
975 | "tot:xmit x%08x cmpl x%08x\n", | |
976 | tot_xmt, tot_cmpl); | |
977 | return len; | |
978 | } | |
979 | ||
858c9f6c JS |
980 | return len; |
981 | } | |
2ea259ee | 982 | |
858c9f6c JS |
983 | #endif |
984 | ||
e59058c4 | 985 | /** |
3621a710 | 986 | * lpfc_debugfs_disc_trc - Store discovery trace log |
e59058c4 JS |
987 | * @vport: The vport to associate this trace string with for retrieval. |
988 | * @mask: Log entry classification. | |
989 | * @fmt: Format string to be displayed when dumping the log. | |
990 | * @data1: 1st data parameter to be applied to @fmt. | |
991 | * @data2: 2nd data parameter to be applied to @fmt. | |
992 | * @data3: 3rd data parameter to be applied to @fmt. | |
993 | * | |
994 | * Description: | |
995 | * This routine is used by the driver code to add a debugfs log entry to the | |
996 | * discovery trace buffer associated with @vport. Only entries with a @mask that | |
997 | * match the current debugfs discovery mask will be saved. Entries that do not | |
998 | * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like | |
999 | * printf when displaying the log. | |
1000 | **/ | |
858c9f6c JS |
1001 | inline void |
1002 | lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, | |
1003 | uint32_t data1, uint32_t data2, uint32_t data3) | |
1004 | { | |
923e4b6a | 1005 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
a58cbd52 | 1006 | struct lpfc_debugfs_trc *dtp; |
858c9f6c JS |
1007 | int index; |
1008 | ||
1009 | if (!(lpfc_debugfs_mask_disc_trc & mask)) | |
1010 | return; | |
1011 | ||
1012 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || | |
1013 | !vport || !vport->disc_trc) | |
1014 | return; | |
1015 | ||
1016 | index = atomic_inc_return(&vport->disc_trc_cnt) & | |
1017 | (lpfc_debugfs_max_disc_trc - 1); | |
1018 | dtp = vport->disc_trc + index; | |
1019 | dtp->fmt = fmt; | |
1020 | dtp->data1 = data1; | |
1021 | dtp->data2 = data2; | |
1022 | dtp->data3 = data3; | |
a58cbd52 JS |
1023 | dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); |
1024 | dtp->jif = jiffies; | |
1025 | #endif | |
1026 | return; | |
1027 | } | |
1028 | ||
e59058c4 | 1029 | /** |
3621a710 | 1030 | * lpfc_debugfs_slow_ring_trc - Store slow ring trace log |
e59058c4 JS |
1031 | * @phba: The phba to associate this trace string with for retrieval. |
1032 | * @fmt: Format string to be displayed when dumping the log. | |
1033 | * @data1: 1st data parameter to be applied to @fmt. | |
1034 | * @data2: 2nd data parameter to be applied to @fmt. | |
1035 | * @data3: 3rd data parameter to be applied to @fmt. | |
1036 | * | |
1037 | * Description: | |
1038 | * This routine is used by the driver code to add a debugfs log entry to the | |
1039 | * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and | |
1040 | * @data3 are used like printf when displaying the log. | |
1041 | **/ | |
a58cbd52 JS |
1042 | inline void |
1043 | lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, | |
1044 | uint32_t data1, uint32_t data2, uint32_t data3) | |
1045 | { | |
923e4b6a | 1046 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
a58cbd52 JS |
1047 | struct lpfc_debugfs_trc *dtp; |
1048 | int index; | |
1049 | ||
1050 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || | |
1051 | !phba || !phba->slow_ring_trc) | |
1052 | return; | |
1053 | ||
1054 | index = atomic_inc_return(&phba->slow_ring_trc_cnt) & | |
1055 | (lpfc_debugfs_max_slow_ring_trc - 1); | |
1056 | dtp = phba->slow_ring_trc + index; | |
1057 | dtp->fmt = fmt; | |
1058 | dtp->data1 = data1; | |
1059 | dtp->data2 = data2; | |
1060 | dtp->data3 = data3; | |
1061 | dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); | |
858c9f6c JS |
1062 | dtp->jif = jiffies; |
1063 | #endif | |
1064 | return; | |
1065 | } | |
1066 | ||
bd2cdd5e JS |
1067 | /** |
1068 | * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log | |
1069 | * @phba: The phba to associate this trace string with for retrieval. | |
1070 | * @fmt: Format string to be displayed when dumping the log. | |
1071 | * @data1: 1st data parameter to be applied to @fmt. | |
1072 | * @data2: 2nd data parameter to be applied to @fmt. | |
1073 | * @data3: 3rd data parameter to be applied to @fmt. | |
1074 | * | |
1075 | * Description: | |
1076 | * This routine is used by the driver code to add a debugfs log entry to the | |
1077 | * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and | |
1078 | * @data3 are used like printf when displaying the log. | |
1079 | **/ | |
1080 | inline void | |
1081 | lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt, | |
1082 | uint16_t data1, uint16_t data2, uint32_t data3) | |
1083 | { | |
1084 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
1085 | struct lpfc_debugfs_nvmeio_trc *dtp; | |
1086 | int index; | |
1087 | ||
1088 | if (!phba->nvmeio_trc_on || !phba->nvmeio_trc) | |
1089 | return; | |
1090 | ||
1091 | index = atomic_inc_return(&phba->nvmeio_trc_cnt) & | |
1092 | (phba->nvmeio_trc_size - 1); | |
1093 | dtp = phba->nvmeio_trc + index; | |
1094 | dtp->fmt = fmt; | |
1095 | dtp->data1 = data1; | |
1096 | dtp->data2 = data2; | |
1097 | dtp->data3 = data3; | |
1098 | #endif | |
1099 | } | |
1100 | ||
923e4b6a | 1101 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
e59058c4 | 1102 | /** |
3621a710 | 1103 | * lpfc_debugfs_disc_trc_open - Open the discovery trace log |
e59058c4 JS |
1104 | * @inode: The inode pointer that contains a vport pointer. |
1105 | * @file: The file pointer to attach the log output. | |
1106 | * | |
1107 | * Description: | |
1108 | * This routine is the entry point for the debugfs open file operation. It gets | |
1109 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
1110 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
1111 | * returns a pointer to that log in the private_data field in @file. | |
1112 | * | |
1113 | * Returns: | |
79ce48df | 1114 | * This function returns zero if successful. On error it will return a negative |
e59058c4 JS |
1115 | * error value. |
1116 | **/ | |
858c9f6c JS |
1117 | static int |
1118 | lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) | |
1119 | { | |
1120 | struct lpfc_vport *vport = inode->i_private; | |
1121 | struct lpfc_debug *debug; | |
1122 | int size; | |
1123 | int rc = -ENOMEM; | |
1124 | ||
1125 | if (!lpfc_debugfs_max_disc_trc) { | |
1126 | rc = -ENOSPC; | |
1127 | goto out; | |
1128 | } | |
1129 | ||
1130 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1131 | if (!debug) | |
1132 | goto out; | |
1133 | ||
e59058c4 | 1134 | /* Round to page boundary */ |
a58cbd52 | 1135 | size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
858c9f6c JS |
1136 | size = PAGE_ALIGN(size); |
1137 | ||
1138 | debug->buffer = kmalloc(size, GFP_KERNEL); | |
1139 | if (!debug->buffer) { | |
1140 | kfree(debug); | |
1141 | goto out; | |
1142 | } | |
1143 | ||
1144 | debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); | |
1145 | file->private_data = debug; | |
1146 | ||
1147 | rc = 0; | |
1148 | out: | |
1149 | return rc; | |
1150 | } | |
1151 | ||
e59058c4 | 1152 | /** |
3621a710 | 1153 | * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log |
e59058c4 JS |
1154 | * @inode: The inode pointer that contains a vport pointer. |
1155 | * @file: The file pointer to attach the log output. | |
1156 | * | |
1157 | * Description: | |
1158 | * This routine is the entry point for the debugfs open file operation. It gets | |
1159 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
1160 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
1161 | * returns a pointer to that log in the private_data field in @file. | |
1162 | * | |
1163 | * Returns: | |
79ce48df | 1164 | * This function returns zero if successful. On error it will return a negative |
e59058c4 JS |
1165 | * error value. |
1166 | **/ | |
a58cbd52 JS |
1167 | static int |
1168 | lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) | |
1169 | { | |
1170 | struct lpfc_hba *phba = inode->i_private; | |
1171 | struct lpfc_debug *debug; | |
1172 | int size; | |
1173 | int rc = -ENOMEM; | |
1174 | ||
1175 | if (!lpfc_debugfs_max_slow_ring_trc) { | |
1176 | rc = -ENOSPC; | |
1177 | goto out; | |
1178 | } | |
1179 | ||
1180 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1181 | if (!debug) | |
1182 | goto out; | |
1183 | ||
e59058c4 | 1184 | /* Round to page boundary */ |
a58cbd52 JS |
1185 | size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
1186 | size = PAGE_ALIGN(size); | |
1187 | ||
1188 | debug->buffer = kmalloc(size, GFP_KERNEL); | |
1189 | if (!debug->buffer) { | |
1190 | kfree(debug); | |
1191 | goto out; | |
1192 | } | |
1193 | ||
1194 | debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); | |
1195 | file->private_data = debug; | |
1196 | ||
1197 | rc = 0; | |
1198 | out: | |
1199 | return rc; | |
1200 | } | |
1201 | ||
e59058c4 | 1202 | /** |
3621a710 | 1203 | * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer |
e59058c4 JS |
1204 | * @inode: The inode pointer that contains a vport pointer. |
1205 | * @file: The file pointer to attach the log output. | |
1206 | * | |
1207 | * Description: | |
1208 | * This routine is the entry point for the debugfs open file operation. It gets | |
1209 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
1210 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
1211 | * returns a pointer to that log in the private_data field in @file. | |
1212 | * | |
1213 | * Returns: | |
79ce48df | 1214 | * This function returns zero if successful. On error it will return a negative |
e59058c4 JS |
1215 | * error value. |
1216 | **/ | |
78b2d852 JS |
1217 | static int |
1218 | lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) | |
1219 | { | |
1220 | struct lpfc_hba *phba = inode->i_private; | |
1221 | struct lpfc_debug *debug; | |
1222 | int rc = -ENOMEM; | |
1223 | ||
1224 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1225 | if (!debug) | |
1226 | goto out; | |
1227 | ||
e59058c4 | 1228 | /* Round to page boundary */ |
78b2d852 JS |
1229 | debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); |
1230 | if (!debug->buffer) { | |
1231 | kfree(debug); | |
1232 | goto out; | |
1233 | } | |
1234 | ||
1235 | debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, | |
1236 | LPFC_HBQINFO_SIZE); | |
1237 | file->private_data = debug; | |
1238 | ||
1239 | rc = 0; | |
1240 | out: | |
1241 | return rc; | |
1242 | } | |
1243 | ||
e59058c4 | 1244 | /** |
3621a710 | 1245 | * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer |
e59058c4 JS |
1246 | * @inode: The inode pointer that contains a vport pointer. |
1247 | * @file: The file pointer to attach the log output. | |
1248 | * | |
1249 | * Description: | |
1250 | * This routine is the entry point for the debugfs open file operation. It gets | |
1251 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
1252 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
1253 | * returns a pointer to that log in the private_data field in @file. | |
1254 | * | |
1255 | * Returns: | |
79ce48df | 1256 | * This function returns zero if successful. On error it will return a negative |
e59058c4 JS |
1257 | * error value. |
1258 | **/ | |
a58cbd52 | 1259 | static int |
c95d6c6c | 1260 | lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) |
a58cbd52 JS |
1261 | { |
1262 | struct lpfc_hba *phba = inode->i_private; | |
1263 | struct lpfc_debug *debug; | |
1264 | int rc = -ENOMEM; | |
1265 | ||
1266 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1267 | if (!debug) | |
1268 | goto out; | |
1269 | ||
e59058c4 | 1270 | /* Round to page boundary */ |
c95d6c6c | 1271 | debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); |
a58cbd52 JS |
1272 | if (!debug->buffer) { |
1273 | kfree(debug); | |
1274 | goto out; | |
1275 | } | |
1276 | ||
c95d6c6c JS |
1277 | debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, |
1278 | LPFC_DUMPHBASLIM_SIZE); | |
1279 | file->private_data = debug; | |
1280 | ||
1281 | rc = 0; | |
1282 | out: | |
1283 | return rc; | |
1284 | } | |
1285 | ||
e59058c4 | 1286 | /** |
3621a710 | 1287 | * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer |
e59058c4 JS |
1288 | * @inode: The inode pointer that contains a vport pointer. |
1289 | * @file: The file pointer to attach the log output. | |
1290 | * | |
1291 | * Description: | |
1292 | * This routine is the entry point for the debugfs open file operation. It gets | |
1293 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
1294 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
1295 | * returns a pointer to that log in the private_data field in @file. | |
1296 | * | |
1297 | * Returns: | |
79ce48df | 1298 | * This function returns zero if successful. On error it will return a negative |
e59058c4 JS |
1299 | * error value. |
1300 | **/ | |
c95d6c6c JS |
1301 | static int |
1302 | lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) | |
1303 | { | |
1304 | struct lpfc_hba *phba = inode->i_private; | |
1305 | struct lpfc_debug *debug; | |
1306 | int rc = -ENOMEM; | |
1307 | ||
1308 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1309 | if (!debug) | |
1310 | goto out; | |
1311 | ||
e59058c4 | 1312 | /* Round to page boundary */ |
c95d6c6c JS |
1313 | debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); |
1314 | if (!debug->buffer) { | |
1315 | kfree(debug); | |
1316 | goto out; | |
1317 | } | |
1318 | ||
1319 | debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, | |
1320 | LPFC_DUMPHOSTSLIM_SIZE); | |
a58cbd52 JS |
1321 | file->private_data = debug; |
1322 | ||
1323 | rc = 0; | |
1324 | out: | |
1325 | return rc; | |
1326 | } | |
1327 | ||
e2a0a9d6 JS |
1328 | static int |
1329 | lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) | |
1330 | { | |
1331 | struct lpfc_debug *debug; | |
1332 | int rc = -ENOMEM; | |
1333 | ||
1334 | if (!_dump_buf_data) | |
1335 | return -EBUSY; | |
1336 | ||
1337 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1338 | if (!debug) | |
1339 | goto out; | |
1340 | ||
25985edc | 1341 | /* Round to page boundary */ |
2ea259ee | 1342 | pr_err("9059 BLKGRD: %s: _dump_buf_data=0x%p\n", |
e2a0a9d6 JS |
1343 | __func__, _dump_buf_data); |
1344 | debug->buffer = _dump_buf_data; | |
1345 | if (!debug->buffer) { | |
1346 | kfree(debug); | |
1347 | goto out; | |
1348 | } | |
1349 | ||
1350 | debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; | |
1351 | file->private_data = debug; | |
1352 | ||
1353 | rc = 0; | |
1354 | out: | |
1355 | return rc; | |
1356 | } | |
1357 | ||
1358 | static int | |
1359 | lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) | |
1360 | { | |
1361 | struct lpfc_debug *debug; | |
1362 | int rc = -ENOMEM; | |
1363 | ||
1364 | if (!_dump_buf_dif) | |
1365 | return -EBUSY; | |
1366 | ||
1367 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1368 | if (!debug) | |
1369 | goto out; | |
1370 | ||
25985edc | 1371 | /* Round to page boundary */ |
2ea259ee JS |
1372 | pr_err("9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%pD\n", |
1373 | __func__, _dump_buf_dif, file); | |
e2a0a9d6 JS |
1374 | debug->buffer = _dump_buf_dif; |
1375 | if (!debug->buffer) { | |
1376 | kfree(debug); | |
1377 | goto out; | |
1378 | } | |
1379 | ||
1380 | debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; | |
1381 | file->private_data = debug; | |
1382 | ||
1383 | rc = 0; | |
1384 | out: | |
1385 | return rc; | |
1386 | } | |
1387 | ||
1388 | static ssize_t | |
1389 | lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, | |
1390 | size_t nbytes, loff_t *ppos) | |
1391 | { | |
1392 | /* | |
1393 | * The Data/DIF buffers only save one failing IO | |
1394 | * The write op is used as a reset mechanism after an IO has | |
1395 | * already been saved to the next one can be saved | |
1396 | */ | |
1397 | spin_lock(&_dump_buf_lock); | |
1398 | ||
1399 | memset((void *)_dump_buf_data, 0, | |
1400 | ((1 << PAGE_SHIFT) << _dump_buf_data_order)); | |
1401 | memset((void *)_dump_buf_dif, 0, | |
1402 | ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); | |
1403 | ||
1404 | _dump_buf_done = 0; | |
1405 | ||
1406 | spin_unlock(&_dump_buf_lock); | |
1407 | ||
1408 | return nbytes; | |
1409 | } | |
1410 | ||
f9bb2da1 JS |
1411 | static ssize_t |
1412 | lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, | |
1413 | size_t nbytes, loff_t *ppos) | |
1414 | { | |
b583043e | 1415 | struct dentry *dent = file->f_path.dentry; |
f9bb2da1 | 1416 | struct lpfc_hba *phba = file->private_data; |
9a6b09c0 | 1417 | char cbuf[32]; |
4ac9b226 | 1418 | uint64_t tmp = 0; |
f9bb2da1 JS |
1419 | int cnt = 0; |
1420 | ||
1421 | if (dent == phba->debug_writeGuard) | |
9a6b09c0 | 1422 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); |
f9bb2da1 | 1423 | else if (dent == phba->debug_writeApp) |
9a6b09c0 | 1424 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); |
f9bb2da1 | 1425 | else if (dent == phba->debug_writeRef) |
9a6b09c0 | 1426 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); |
acd6859b | 1427 | else if (dent == phba->debug_readGuard) |
9a6b09c0 | 1428 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); |
f9bb2da1 | 1429 | else if (dent == phba->debug_readApp) |
9a6b09c0 | 1430 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); |
f9bb2da1 | 1431 | else if (dent == phba->debug_readRef) |
9a6b09c0 | 1432 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); |
4ac9b226 JS |
1433 | else if (dent == phba->debug_InjErrNPortID) |
1434 | cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid); | |
1435 | else if (dent == phba->debug_InjErrWWPN) { | |
1436 | memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); | |
1437 | tmp = cpu_to_be64(tmp); | |
1438 | cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp); | |
1439 | } else if (dent == phba->debug_InjErrLBA) { | |
1440 | if (phba->lpfc_injerr_lba == (sector_t)(-1)) | |
9a6b09c0 JS |
1441 | cnt = snprintf(cbuf, 32, "off\n"); |
1442 | else | |
4ac9b226 JS |
1443 | cnt = snprintf(cbuf, 32, "0x%llx\n", |
1444 | (uint64_t) phba->lpfc_injerr_lba); | |
9a6b09c0 | 1445 | } else |
f9bb2da1 JS |
1446 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
1447 | "0547 Unknown debugfs error injection entry\n"); | |
1448 | ||
1449 | return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); | |
1450 | } | |
1451 | ||
1452 | static ssize_t | |
1453 | lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, | |
1454 | size_t nbytes, loff_t *ppos) | |
1455 | { | |
b583043e | 1456 | struct dentry *dent = file->f_path.dentry; |
f9bb2da1 | 1457 | struct lpfc_hba *phba = file->private_data; |
0872774d | 1458 | char dstbuf[33]; |
4ac9b226 | 1459 | uint64_t tmp = 0; |
f9bb2da1 JS |
1460 | int size; |
1461 | ||
0872774d | 1462 | memset(dstbuf, 0, 33); |
f9bb2da1 JS |
1463 | size = (nbytes < 32) ? nbytes : 32; |
1464 | if (copy_from_user(dstbuf, buf, size)) | |
1465 | return 0; | |
1466 | ||
9a6b09c0 JS |
1467 | if (dent == phba->debug_InjErrLBA) { |
1468 | if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) | |
4ac9b226 | 1469 | tmp = (uint64_t)(-1); |
9a6b09c0 JS |
1470 | } |
1471 | ||
4ac9b226 | 1472 | if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) |
f9bb2da1 JS |
1473 | return 0; |
1474 | ||
1475 | if (dent == phba->debug_writeGuard) | |
1476 | phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; | |
1477 | else if (dent == phba->debug_writeApp) | |
1478 | phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; | |
1479 | else if (dent == phba->debug_writeRef) | |
1480 | phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; | |
acd6859b JS |
1481 | else if (dent == phba->debug_readGuard) |
1482 | phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; | |
f9bb2da1 JS |
1483 | else if (dent == phba->debug_readApp) |
1484 | phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; | |
1485 | else if (dent == phba->debug_readRef) | |
1486 | phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; | |
1487 | else if (dent == phba->debug_InjErrLBA) | |
1488 | phba->lpfc_injerr_lba = (sector_t)tmp; | |
4ac9b226 JS |
1489 | else if (dent == phba->debug_InjErrNPortID) |
1490 | phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); | |
1491 | else if (dent == phba->debug_InjErrWWPN) { | |
1492 | tmp = cpu_to_be64(tmp); | |
1493 | memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); | |
1494 | } else | |
f9bb2da1 JS |
1495 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
1496 | "0548 Unknown debugfs error injection entry\n"); | |
1497 | ||
1498 | return nbytes; | |
1499 | } | |
1500 | ||
1501 | static int | |
1502 | lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) | |
1503 | { | |
1504 | return 0; | |
1505 | } | |
1506 | ||
e59058c4 | 1507 | /** |
3621a710 | 1508 | * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file |
e59058c4 JS |
1509 | * @inode: The inode pointer that contains a vport pointer. |
1510 | * @file: The file pointer to attach the log output. | |
1511 | * | |
1512 | * Description: | |
1513 | * This routine is the entry point for the debugfs open file operation. It gets | |
1514 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
1515 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
1516 | * returns a pointer to that log in the private_data field in @file. | |
1517 | * | |
1518 | * Returns: | |
79ce48df | 1519 | * This function returns zero if successful. On error it will return a negative |
e59058c4 JS |
1520 | * error value. |
1521 | **/ | |
858c9f6c JS |
1522 | static int |
1523 | lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) | |
1524 | { | |
1525 | struct lpfc_vport *vport = inode->i_private; | |
1526 | struct lpfc_debug *debug; | |
1527 | int rc = -ENOMEM; | |
1528 | ||
1529 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1530 | if (!debug) | |
1531 | goto out; | |
1532 | ||
e59058c4 | 1533 | /* Round to page boundary */ |
858c9f6c JS |
1534 | debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); |
1535 | if (!debug->buffer) { | |
1536 | kfree(debug); | |
1537 | goto out; | |
1538 | } | |
1539 | ||
1540 | debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, | |
1541 | LPFC_NODELIST_SIZE); | |
1542 | file->private_data = debug; | |
1543 | ||
1544 | rc = 0; | |
1545 | out: | |
1546 | return rc; | |
1547 | } | |
1548 | ||
e59058c4 | 1549 | /** |
3621a710 | 1550 | * lpfc_debugfs_lseek - Seek through a debugfs file |
e59058c4 JS |
1551 | * @file: The file pointer to seek through. |
1552 | * @off: The offset to seek to or the amount to seek by. | |
1553 | * @whence: Indicates how to seek. | |
1554 | * | |
1555 | * Description: | |
1556 | * This routine is the entry point for the debugfs lseek file operation. The | |
1557 | * @whence parameter indicates whether @off is the offset to directly seek to, | |
1558 | * or if it is a value to seek forward or reverse by. This function figures out | |
1559 | * what the new offset of the debugfs file will be and assigns that value to the | |
1560 | * f_pos field of @file. | |
1561 | * | |
1562 | * Returns: | |
1563 | * This function returns the new offset if successful and returns a negative | |
1564 | * error if unable to process the seek. | |
1565 | **/ | |
858c9f6c JS |
1566 | static loff_t |
1567 | lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) | |
1568 | { | |
7233c774 AV |
1569 | struct lpfc_debug *debug = file->private_data; |
1570 | return fixed_size_llseek(file, off, whence, debug->len); | |
858c9f6c JS |
1571 | } |
1572 | ||
e59058c4 | 1573 | /** |
3621a710 | 1574 | * lpfc_debugfs_read - Read a debugfs file |
e59058c4 JS |
1575 | * @file: The file pointer to read from. |
1576 | * @buf: The buffer to copy the data to. | |
1577 | * @nbytes: The number of bytes to read. | |
1578 | * @ppos: The position in the file to start reading from. | |
1579 | * | |
1580 | * Description: | |
1581 | * This routine reads data from from the buffer indicated in the private_data | |
1582 | * field of @file. It will start reading at @ppos and copy up to @nbytes of | |
1583 | * data to @buf. | |
1584 | * | |
1585 | * Returns: | |
1586 | * This function returns the amount of data that was read (this could be less | |
1587 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1588 | **/ | |
858c9f6c JS |
1589 | static ssize_t |
1590 | lpfc_debugfs_read(struct file *file, char __user *buf, | |
1591 | size_t nbytes, loff_t *ppos) | |
1592 | { | |
1593 | struct lpfc_debug *debug = file->private_data; | |
2a622bfb | 1594 | |
858c9f6c JS |
1595 | return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, |
1596 | debug->len); | |
1597 | } | |
1598 | ||
e59058c4 | 1599 | /** |
3621a710 | 1600 | * lpfc_debugfs_release - Release the buffer used to store debugfs file data |
e59058c4 JS |
1601 | * @inode: The inode pointer that contains a vport pointer. (unused) |
1602 | * @file: The file pointer that contains the buffer to release. | |
1603 | * | |
1604 | * Description: | |
1605 | * This routine frees the buffer that was allocated when the debugfs file was | |
1606 | * opened. | |
1607 | * | |
1608 | * Returns: | |
1609 | * This function returns zero. | |
1610 | **/ | |
858c9f6c JS |
1611 | static int |
1612 | lpfc_debugfs_release(struct inode *inode, struct file *file) | |
1613 | { | |
1614 | struct lpfc_debug *debug = file->private_data; | |
1615 | ||
1616 | kfree(debug->buffer); | |
1617 | kfree(debug); | |
1618 | ||
1619 | return 0; | |
1620 | } | |
1621 | ||
e2a0a9d6 JS |
1622 | static int |
1623 | lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) | |
1624 | { | |
1625 | struct lpfc_debug *debug = file->private_data; | |
1626 | ||
1627 | debug->buffer = NULL; | |
1628 | kfree(debug); | |
1629 | ||
1630 | return 0; | |
1631 | } | |
1632 | ||
bd2cdd5e JS |
1633 | |
1634 | static int | |
1635 | lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file) | |
1636 | { | |
1637 | struct lpfc_vport *vport = inode->i_private; | |
1638 | struct lpfc_debug *debug; | |
1639 | int rc = -ENOMEM; | |
1640 | ||
1641 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1642 | if (!debug) | |
1643 | goto out; | |
1644 | ||
1645 | /* Round to page boundary */ | |
1646 | debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL); | |
1647 | if (!debug->buffer) { | |
1648 | kfree(debug); | |
1649 | goto out; | |
1650 | } | |
1651 | ||
1652 | debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer, | |
1653 | LPFC_NVMESTAT_SIZE); | |
1654 | ||
1655 | debug->i_private = inode->i_private; | |
1656 | file->private_data = debug; | |
1657 | ||
1658 | rc = 0; | |
1659 | out: | |
1660 | return rc; | |
1661 | } | |
1662 | ||
1663 | static int | |
1664 | lpfc_debugfs_nvmektime_open(struct inode *inode, struct file *file) | |
1665 | { | |
1666 | struct lpfc_vport *vport = inode->i_private; | |
1667 | struct lpfc_debug *debug; | |
1668 | int rc = -ENOMEM; | |
1669 | ||
1670 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1671 | if (!debug) | |
1672 | goto out; | |
1673 | ||
1674 | /* Round to page boundary */ | |
1675 | debug->buffer = kmalloc(LPFC_NVMEKTIME_SIZE, GFP_KERNEL); | |
1676 | if (!debug->buffer) { | |
1677 | kfree(debug); | |
1678 | goto out; | |
1679 | } | |
1680 | ||
1681 | debug->len = lpfc_debugfs_nvmektime_data(vport, debug->buffer, | |
1682 | LPFC_NVMEKTIME_SIZE); | |
1683 | ||
1684 | debug->i_private = inode->i_private; | |
1685 | file->private_data = debug; | |
1686 | ||
1687 | rc = 0; | |
1688 | out: | |
1689 | return rc; | |
1690 | } | |
1691 | ||
1692 | static ssize_t | |
1693 | lpfc_debugfs_nvmektime_write(struct file *file, const char __user *buf, | |
1694 | size_t nbytes, loff_t *ppos) | |
1695 | { | |
1696 | struct lpfc_debug *debug = file->private_data; | |
1697 | struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; | |
1698 | struct lpfc_hba *phba = vport->phba; | |
1699 | char mybuf[64]; | |
1700 | char *pbuf; | |
1701 | ||
1702 | if (nbytes > 64) | |
1703 | nbytes = 64; | |
1704 | ||
1705 | /* Protect copy from user */ | |
1706 | if (!access_ok(VERIFY_READ, buf, nbytes)) | |
1707 | return -EFAULT; | |
1708 | ||
1709 | memset(mybuf, 0, sizeof(mybuf)); | |
1710 | ||
1711 | if (copy_from_user(mybuf, buf, nbytes)) | |
1712 | return -EFAULT; | |
1713 | pbuf = &mybuf[0]; | |
1714 | ||
1715 | if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { | |
1716 | phba->ktime_data_samples = 0; | |
1717 | phba->ktime_status_samples = 0; | |
1718 | phba->ktime_seg1_total = 0; | |
1719 | phba->ktime_seg1_max = 0; | |
1720 | phba->ktime_seg1_min = 0xffffffff; | |
1721 | phba->ktime_seg2_total = 0; | |
1722 | phba->ktime_seg2_max = 0; | |
1723 | phba->ktime_seg2_min = 0xffffffff; | |
1724 | phba->ktime_seg3_total = 0; | |
1725 | phba->ktime_seg3_max = 0; | |
1726 | phba->ktime_seg3_min = 0xffffffff; | |
1727 | phba->ktime_seg4_total = 0; | |
1728 | phba->ktime_seg4_max = 0; | |
1729 | phba->ktime_seg4_min = 0xffffffff; | |
1730 | phba->ktime_seg5_total = 0; | |
1731 | phba->ktime_seg5_max = 0; | |
1732 | phba->ktime_seg5_min = 0xffffffff; | |
1733 | phba->ktime_seg6_total = 0; | |
1734 | phba->ktime_seg6_max = 0; | |
1735 | phba->ktime_seg6_min = 0xffffffff; | |
1736 | phba->ktime_seg7_total = 0; | |
1737 | phba->ktime_seg7_max = 0; | |
1738 | phba->ktime_seg7_min = 0xffffffff; | |
1739 | phba->ktime_seg8_total = 0; | |
1740 | phba->ktime_seg8_max = 0; | |
1741 | phba->ktime_seg8_min = 0xffffffff; | |
1742 | phba->ktime_seg9_total = 0; | |
1743 | phba->ktime_seg9_max = 0; | |
1744 | phba->ktime_seg9_min = 0xffffffff; | |
1745 | phba->ktime_seg10_total = 0; | |
1746 | phba->ktime_seg10_max = 0; | |
1747 | phba->ktime_seg10_min = 0xffffffff; | |
1748 | ||
1749 | phba->ktime_on = 1; | |
1750 | return strlen(pbuf); | |
1751 | } else if ((strncmp(pbuf, "off", | |
1752 | sizeof("off") - 1) == 0)) { | |
1753 | phba->ktime_on = 0; | |
1754 | return strlen(pbuf); | |
1755 | } else if ((strncmp(pbuf, "zero", | |
1756 | sizeof("zero") - 1) == 0)) { | |
1757 | phba->ktime_data_samples = 0; | |
1758 | phba->ktime_status_samples = 0; | |
1759 | phba->ktime_seg1_total = 0; | |
1760 | phba->ktime_seg1_max = 0; | |
1761 | phba->ktime_seg1_min = 0xffffffff; | |
1762 | phba->ktime_seg2_total = 0; | |
1763 | phba->ktime_seg2_max = 0; | |
1764 | phba->ktime_seg2_min = 0xffffffff; | |
1765 | phba->ktime_seg3_total = 0; | |
1766 | phba->ktime_seg3_max = 0; | |
1767 | phba->ktime_seg3_min = 0xffffffff; | |
1768 | phba->ktime_seg4_total = 0; | |
1769 | phba->ktime_seg4_max = 0; | |
1770 | phba->ktime_seg4_min = 0xffffffff; | |
1771 | phba->ktime_seg5_total = 0; | |
1772 | phba->ktime_seg5_max = 0; | |
1773 | phba->ktime_seg5_min = 0xffffffff; | |
1774 | phba->ktime_seg6_total = 0; | |
1775 | phba->ktime_seg6_max = 0; | |
1776 | phba->ktime_seg6_min = 0xffffffff; | |
1777 | phba->ktime_seg7_total = 0; | |
1778 | phba->ktime_seg7_max = 0; | |
1779 | phba->ktime_seg7_min = 0xffffffff; | |
1780 | phba->ktime_seg8_total = 0; | |
1781 | phba->ktime_seg8_max = 0; | |
1782 | phba->ktime_seg8_min = 0xffffffff; | |
1783 | phba->ktime_seg9_total = 0; | |
1784 | phba->ktime_seg9_max = 0; | |
1785 | phba->ktime_seg9_min = 0xffffffff; | |
1786 | phba->ktime_seg10_total = 0; | |
1787 | phba->ktime_seg10_max = 0; | |
1788 | phba->ktime_seg10_min = 0xffffffff; | |
1789 | return strlen(pbuf); | |
1790 | } | |
1791 | return -EINVAL; | |
1792 | } | |
1793 | ||
1794 | static int | |
1795 | lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file) | |
1796 | { | |
1797 | struct lpfc_hba *phba = inode->i_private; | |
1798 | struct lpfc_debug *debug; | |
1799 | int rc = -ENOMEM; | |
1800 | ||
1801 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1802 | if (!debug) | |
1803 | goto out; | |
1804 | ||
1805 | /* Round to page boundary */ | |
1806 | debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL); | |
1807 | if (!debug->buffer) { | |
1808 | kfree(debug); | |
1809 | goto out; | |
1810 | } | |
1811 | ||
1812 | debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer, | |
1813 | LPFC_NVMEIO_TRC_SIZE); | |
1814 | ||
1815 | debug->i_private = inode->i_private; | |
1816 | file->private_data = debug; | |
1817 | ||
1818 | rc = 0; | |
1819 | out: | |
1820 | return rc; | |
1821 | } | |
1822 | ||
1823 | static ssize_t | |
1824 | lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf, | |
1825 | size_t nbytes, loff_t *ppos) | |
1826 | { | |
1827 | struct lpfc_debug *debug = file->private_data; | |
1828 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1829 | int i; | |
1830 | unsigned long sz; | |
1831 | char mybuf[64]; | |
1832 | char *pbuf; | |
1833 | ||
1834 | if (nbytes > 64) | |
1835 | nbytes = 64; | |
1836 | ||
1837 | /* Protect copy from user */ | |
1838 | if (!access_ok(VERIFY_READ, buf, nbytes)) | |
1839 | return -EFAULT; | |
1840 | ||
1841 | memset(mybuf, 0, sizeof(mybuf)); | |
1842 | ||
1843 | if (copy_from_user(mybuf, buf, nbytes)) | |
1844 | return -EFAULT; | |
1845 | pbuf = &mybuf[0]; | |
1846 | ||
1847 | if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) { | |
1848 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1849 | "0570 nvmeio_trc_off\n"); | |
1850 | phba->nvmeio_trc_output_idx = 0; | |
1851 | phba->nvmeio_trc_on = 0; | |
1852 | return strlen(pbuf); | |
1853 | } else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { | |
1854 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1855 | "0571 nvmeio_trc_on\n"); | |
1856 | phba->nvmeio_trc_output_idx = 0; | |
1857 | phba->nvmeio_trc_on = 1; | |
1858 | return strlen(pbuf); | |
1859 | } | |
1860 | ||
1861 | /* We must be off to allocate the trace buffer */ | |
1862 | if (phba->nvmeio_trc_on != 0) | |
1863 | return -EINVAL; | |
1864 | ||
1865 | /* If not on or off, the parameter is the trace buffer size */ | |
1866 | i = kstrtoul(pbuf, 0, &sz); | |
1867 | if (i) | |
1868 | return -EINVAL; | |
1869 | phba->nvmeio_trc_size = (uint32_t)sz; | |
1870 | ||
1871 | /* It must be a power of 2 - round down */ | |
1872 | i = 0; | |
1873 | while (sz > 1) { | |
1874 | sz = sz >> 1; | |
1875 | i++; | |
1876 | } | |
1877 | sz = (1 << i); | |
1878 | if (phba->nvmeio_trc_size != sz) | |
1879 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1880 | "0572 nvmeio_trc_size changed to %ld\n", | |
1881 | sz); | |
1882 | phba->nvmeio_trc_size = (uint32_t)sz; | |
1883 | ||
1884 | /* If one previously exists, free it */ | |
1885 | kfree(phba->nvmeio_trc); | |
1886 | ||
1887 | /* Allocate new trace buffer and initialize */ | |
1888 | phba->nvmeio_trc = kmalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) * | |
1889 | sz), GFP_KERNEL); | |
1890 | if (!phba->nvmeio_trc) { | |
1891 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
1892 | "0573 Cannot create debugfs " | |
1893 | "nvmeio_trc buffer\n"); | |
1894 | return -ENOMEM; | |
1895 | } | |
1896 | memset(phba->nvmeio_trc, 0, | |
1897 | (sizeof(struct lpfc_debugfs_nvmeio_trc) * sz)); | |
1898 | atomic_set(&phba->nvmeio_trc_cnt, 0); | |
1899 | phba->nvmeio_trc_on = 0; | |
1900 | phba->nvmeio_trc_output_idx = 0; | |
1901 | ||
1902 | return strlen(pbuf); | |
1903 | } | |
1904 | ||
1905 | static int | |
1906 | lpfc_debugfs_cpucheck_open(struct inode *inode, struct file *file) | |
1907 | { | |
1908 | struct lpfc_vport *vport = inode->i_private; | |
1909 | struct lpfc_debug *debug; | |
1910 | int rc = -ENOMEM; | |
1911 | ||
1912 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1913 | if (!debug) | |
1914 | goto out; | |
1915 | ||
1916 | /* Round to page boundary */ | |
1917 | debug->buffer = kmalloc(LPFC_CPUCHECK_SIZE, GFP_KERNEL); | |
1918 | if (!debug->buffer) { | |
1919 | kfree(debug); | |
1920 | goto out; | |
1921 | } | |
1922 | ||
1923 | debug->len = lpfc_debugfs_cpucheck_data(vport, debug->buffer, | |
1924 | LPFC_NVMEKTIME_SIZE); | |
1925 | ||
1926 | debug->i_private = inode->i_private; | |
1927 | file->private_data = debug; | |
1928 | ||
1929 | rc = 0; | |
1930 | out: | |
1931 | return rc; | |
1932 | } | |
1933 | ||
1934 | static ssize_t | |
1935 | lpfc_debugfs_cpucheck_write(struct file *file, const char __user *buf, | |
1936 | size_t nbytes, loff_t *ppos) | |
1937 | { | |
1938 | struct lpfc_debug *debug = file->private_data; | |
1939 | struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private; | |
1940 | struct lpfc_hba *phba = vport->phba; | |
1941 | char mybuf[64]; | |
1942 | char *pbuf; | |
1943 | int i; | |
1944 | ||
1945 | if (nbytes > 64) | |
1946 | nbytes = 64; | |
1947 | ||
1948 | /* Protect copy from user */ | |
1949 | if (!access_ok(VERIFY_READ, buf, nbytes)) | |
1950 | return -EFAULT; | |
1951 | ||
1952 | memset(mybuf, 0, sizeof(mybuf)); | |
1953 | ||
1954 | if (copy_from_user(mybuf, buf, nbytes)) | |
1955 | return -EFAULT; | |
1956 | pbuf = &mybuf[0]; | |
1957 | ||
1958 | if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) { | |
1959 | phba->cpucheck_on |= LPFC_CHECK_NVME_IO; | |
1960 | return strlen(pbuf); | |
1961 | } else if ((strncmp(pbuf, "rcv", | |
1962 | sizeof("rcv") - 1) == 0)) { | |
f358dd0c JS |
1963 | if (phba->nvmet_support) |
1964 | phba->cpucheck_on |= LPFC_CHECK_NVMET_RCV; | |
1965 | else | |
1966 | return -EINVAL; | |
1967 | return strlen(pbuf); | |
bd2cdd5e JS |
1968 | } else if ((strncmp(pbuf, "off", |
1969 | sizeof("off") - 1) == 0)) { | |
1970 | phba->cpucheck_on = LPFC_CHECK_OFF; | |
1971 | return strlen(pbuf); | |
1972 | } else if ((strncmp(pbuf, "zero", | |
1973 | sizeof("zero") - 1) == 0)) { | |
1974 | for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { | |
1975 | if (i >= LPFC_CHECK_CPU_CNT) | |
1976 | break; | |
1977 | phba->cpucheck_rcv_io[i] = 0; | |
1978 | phba->cpucheck_xmt_io[i] = 0; | |
1979 | phba->cpucheck_cmpl_io[i] = 0; | |
1980 | phba->cpucheck_ccmpl_io[i] = 0; | |
1981 | } | |
1982 | return strlen(pbuf); | |
1983 | } | |
1984 | return -EINVAL; | |
1985 | } | |
1986 | ||
2a622bfb | 1987 | /* |
86a80846 | 1988 | * --------------------------------- |
2a622bfb | 1989 | * iDiag debugfs file access methods |
86a80846 | 1990 | * --------------------------------- |
2a622bfb | 1991 | * |
86a80846 JS |
1992 | * All access methods are through the proper SLI4 PCI function's debugfs |
1993 | * iDiag directory: | |
2a622bfb | 1994 | * |
86a80846 | 1995 | * /sys/kernel/debug/lpfc/fn<#>/iDiag |
2a622bfb JS |
1996 | */ |
1997 | ||
1998 | /** | |
1999 | * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space | |
2000 | * @buf: The pointer to the user space buffer. | |
2001 | * @nbytes: The number of bytes in the user space buffer. | |
2002 | * @idiag_cmd: pointer to the idiag command struct. | |
2003 | * | |
2004 | * This routine reads data from debugfs user space buffer and parses the | |
2005 | * buffer for getting the idiag command and arguments. The while space in | |
2006 | * between the set of data is used as the parsing separator. | |
2007 | * | |
2008 | * This routine returns 0 when successful, it returns proper error code | |
2009 | * back to the user space in error conditions. | |
2010 | */ | |
2011 | static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, | |
2012 | struct lpfc_idiag_cmd *idiag_cmd) | |
2013 | { | |
2014 | char mybuf[64]; | |
2015 | char *pbuf, *step_str; | |
b11d48e8 SB |
2016 | int i; |
2017 | size_t bsize; | |
2a622bfb JS |
2018 | |
2019 | /* Protect copy from user */ | |
2020 | if (!access_ok(VERIFY_READ, buf, nbytes)) | |
2021 | return -EFAULT; | |
2022 | ||
2023 | memset(mybuf, 0, sizeof(mybuf)); | |
2024 | memset(idiag_cmd, 0, sizeof(*idiag_cmd)); | |
2025 | bsize = min(nbytes, (sizeof(mybuf)-1)); | |
2026 | ||
2027 | if (copy_from_user(mybuf, buf, bsize)) | |
2028 | return -EFAULT; | |
2029 | pbuf = &mybuf[0]; | |
2030 | step_str = strsep(&pbuf, "\t "); | |
2031 | ||
2032 | /* The opcode must present */ | |
2033 | if (!step_str) | |
2034 | return -EINVAL; | |
2035 | ||
2036 | idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); | |
2037 | if (idiag_cmd->opcode == 0) | |
2038 | return -EINVAL; | |
2039 | ||
2040 | for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { | |
2041 | step_str = strsep(&pbuf, "\t "); | |
2042 | if (!step_str) | |
86a80846 | 2043 | return i; |
2a622bfb JS |
2044 | idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); |
2045 | } | |
86a80846 | 2046 | return i; |
2a622bfb JS |
2047 | } |
2048 | ||
2049 | /** | |
2050 | * lpfc_idiag_open - idiag open debugfs | |
2051 | * @inode: The inode pointer that contains a pointer to phba. | |
2052 | * @file: The file pointer to attach the file operation. | |
2053 | * | |
2054 | * Description: | |
2055 | * This routine is the entry point for the debugfs open file operation. It | |
2056 | * gets the reference to phba from the i_private field in @inode, it then | |
2057 | * allocates buffer for the file operation, performs the necessary PCI config | |
2058 | * space read into the allocated buffer according to the idiag user command | |
2059 | * setup, and then returns a pointer to buffer in the private_data field in | |
2060 | * @file. | |
2061 | * | |
2062 | * Returns: | |
2063 | * This function returns zero if successful. On error it will return an | |
2064 | * negative error value. | |
2065 | **/ | |
2066 | static int | |
2067 | lpfc_idiag_open(struct inode *inode, struct file *file) | |
2068 | { | |
2069 | struct lpfc_debug *debug; | |
2070 | ||
2071 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
2072 | if (!debug) | |
2073 | return -ENOMEM; | |
2074 | ||
2075 | debug->i_private = inode->i_private; | |
2076 | debug->buffer = NULL; | |
2077 | file->private_data = debug; | |
2078 | ||
2079 | return 0; | |
2080 | } | |
2081 | ||
2082 | /** | |
2083 | * lpfc_idiag_release - Release idiag access file operation | |
2084 | * @inode: The inode pointer that contains a vport pointer. (unused) | |
2085 | * @file: The file pointer that contains the buffer to release. | |
2086 | * | |
2087 | * Description: | |
2088 | * This routine is the generic release routine for the idiag access file | |
2089 | * operation, it frees the buffer that was allocated when the debugfs file | |
2090 | * was opened. | |
2091 | * | |
2092 | * Returns: | |
2093 | * This function returns zero. | |
2094 | **/ | |
2095 | static int | |
2096 | lpfc_idiag_release(struct inode *inode, struct file *file) | |
2097 | { | |
2098 | struct lpfc_debug *debug = file->private_data; | |
2099 | ||
2100 | /* Free the buffers to the file operation */ | |
2101 | kfree(debug->buffer); | |
2102 | kfree(debug); | |
2103 | ||
2104 | return 0; | |
2105 | } | |
2106 | ||
2107 | /** | |
2108 | * lpfc_idiag_cmd_release - Release idiag cmd access file operation | |
2109 | * @inode: The inode pointer that contains a vport pointer. (unused) | |
2110 | * @file: The file pointer that contains the buffer to release. | |
2111 | * | |
2112 | * Description: | |
2113 | * This routine frees the buffer that was allocated when the debugfs file | |
2114 | * was opened. It also reset the fields in the idiag command struct in the | |
86a80846 | 2115 | * case of command for write operation. |
2a622bfb JS |
2116 | * |
2117 | * Returns: | |
2118 | * This function returns zero. | |
2119 | **/ | |
2120 | static int | |
2121 | lpfc_idiag_cmd_release(struct inode *inode, struct file *file) | |
2122 | { | |
2123 | struct lpfc_debug *debug = file->private_data; | |
2124 | ||
86a80846 JS |
2125 | if (debug->op == LPFC_IDIAG_OP_WR) { |
2126 | switch (idiag.cmd.opcode) { | |
2127 | case LPFC_IDIAG_CMD_PCICFG_WR: | |
2128 | case LPFC_IDIAG_CMD_PCICFG_ST: | |
2129 | case LPFC_IDIAG_CMD_PCICFG_CL: | |
2130 | case LPFC_IDIAG_CMD_QUEACC_WR: | |
2131 | case LPFC_IDIAG_CMD_QUEACC_ST: | |
2132 | case LPFC_IDIAG_CMD_QUEACC_CL: | |
2a622bfb | 2133 | memset(&idiag, 0, sizeof(idiag)); |
86a80846 JS |
2134 | break; |
2135 | default: | |
2136 | break; | |
2137 | } | |
2138 | } | |
2a622bfb JS |
2139 | |
2140 | /* Free the buffers to the file operation */ | |
2141 | kfree(debug->buffer); | |
2142 | kfree(debug); | |
2143 | ||
2144 | return 0; | |
2145 | } | |
2146 | ||
2147 | /** | |
2148 | * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg | |
2149 | * @file: The file pointer to read from. | |
2150 | * @buf: The buffer to copy the data to. | |
2151 | * @nbytes: The number of bytes to read. | |
2152 | * @ppos: The position in the file to start reading from. | |
2153 | * | |
2154 | * Description: | |
2155 | * This routine reads data from the @phba pci config space according to the | |
2156 | * idiag command, and copies to user @buf. Depending on the PCI config space | |
2157 | * read command setup, it does either a single register read of a byte | |
2158 | * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all | |
2159 | * registers from the 4K extended PCI config space. | |
2160 | * | |
2161 | * Returns: | |
2162 | * This function returns the amount of data that was read (this could be less | |
2163 | * than @nbytes if the end of the file was reached) or a negative error value. | |
2164 | **/ | |
2165 | static ssize_t | |
2166 | lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, | |
2167 | loff_t *ppos) | |
2168 | { | |
2169 | struct lpfc_debug *debug = file->private_data; | |
2170 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2171 | int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; | |
2172 | int where, count; | |
2173 | char *pbuffer; | |
2174 | struct pci_dev *pdev; | |
2175 | uint32_t u32val; | |
2176 | uint16_t u16val; | |
2177 | uint8_t u8val; | |
2178 | ||
2179 | pdev = phba->pcidev; | |
2180 | if (!pdev) | |
2181 | return 0; | |
2182 | ||
2183 | /* This is a user read operation */ | |
2184 | debug->op = LPFC_IDIAG_OP_RD; | |
2185 | ||
2186 | if (!debug->buffer) | |
2187 | debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); | |
2188 | if (!debug->buffer) | |
2189 | return 0; | |
2190 | pbuffer = debug->buffer; | |
2191 | ||
2192 | if (*ppos) | |
2193 | return 0; | |
2194 | ||
2195 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { | |
b76f2dc9 JS |
2196 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
2197 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; | |
2a622bfb JS |
2198 | } else |
2199 | return 0; | |
2200 | ||
2201 | /* Read single PCI config space register */ | |
2202 | switch (count) { | |
2203 | case SIZE_U8: /* byte (8 bits) */ | |
2204 | pci_read_config_byte(pdev, where, &u8val); | |
2205 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
2206 | "%03x: %02x\n", where, u8val); | |
2207 | break; | |
2208 | case SIZE_U16: /* word (16 bits) */ | |
2209 | pci_read_config_word(pdev, where, &u16val); | |
2210 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
2211 | "%03x: %04x\n", where, u16val); | |
2212 | break; | |
2213 | case SIZE_U32: /* double word (32 bits) */ | |
2214 | pci_read_config_dword(pdev, where, &u32val); | |
2215 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
2216 | "%03x: %08x\n", where, u32val); | |
2217 | break; | |
86a80846 | 2218 | case LPFC_PCI_CFG_BROWSE: /* browse all */ |
2a622bfb JS |
2219 | goto pcicfg_browse; |
2220 | break; | |
2221 | default: | |
2222 | /* illegal count */ | |
2223 | len = 0; | |
2224 | break; | |
2225 | } | |
2226 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2227 | ||
2228 | pcicfg_browse: | |
2229 | ||
2230 | /* Browse all PCI config space registers */ | |
2231 | offset_label = idiag.offset.last_rd; | |
2232 | offset = offset_label; | |
2233 | ||
2234 | /* Read PCI config space */ | |
2235 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
2236 | "%03x: ", offset_label); | |
2237 | while (index > 0) { | |
2238 | pci_read_config_dword(pdev, offset, &u32val); | |
2239 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
2240 | "%08x ", u32val); | |
2241 | offset += sizeof(uint32_t); | |
b76f2dc9 JS |
2242 | if (offset >= LPFC_PCI_CFG_SIZE) { |
2243 | len += snprintf(pbuffer+len, | |
2244 | LPFC_PCI_CFG_SIZE-len, "\n"); | |
2245 | break; | |
2246 | } | |
2a622bfb JS |
2247 | index -= sizeof(uint32_t); |
2248 | if (!index) | |
2249 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
2250 | "\n"); | |
2251 | else if (!(index % (8 * sizeof(uint32_t)))) { | |
2252 | offset_label += (8 * sizeof(uint32_t)); | |
2253 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
2254 | "\n%03x: ", offset_label); | |
2255 | } | |
2256 | } | |
2257 | ||
2258 | /* Set up the offset for next portion of pci cfg read */ | |
b76f2dc9 JS |
2259 | if (index == 0) { |
2260 | idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; | |
2261 | if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) | |
2262 | idiag.offset.last_rd = 0; | |
2263 | } else | |
2a622bfb JS |
2264 | idiag.offset.last_rd = 0; |
2265 | ||
2266 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2267 | } | |
2268 | ||
2269 | /** | |
2270 | * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands | |
2271 | * @file: The file pointer to read from. | |
2272 | * @buf: The buffer to copy the user data from. | |
2273 | * @nbytes: The number of bytes to get. | |
2274 | * @ppos: The position in the file to start reading from. | |
2275 | * | |
2276 | * This routine get the debugfs idiag command struct from user space and | |
2277 | * then perform the syntax check for PCI config space read or write command | |
2278 | * accordingly. In the case of PCI config space read command, it sets up | |
2279 | * the command in the idiag command struct for the debugfs read operation. | |
2280 | * In the case of PCI config space write operation, it executes the write | |
2281 | * operation into the PCI config space accordingly. | |
2282 | * | |
2283 | * It returns the @nbytges passing in from debugfs user space when successful. | |
2284 | * In case of error conditions, it returns proper error code back to the user | |
2285 | * space. | |
2286 | */ | |
2287 | static ssize_t | |
2288 | lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, | |
2289 | size_t nbytes, loff_t *ppos) | |
2290 | { | |
2291 | struct lpfc_debug *debug = file->private_data; | |
2292 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2293 | uint32_t where, value, count; | |
2294 | uint32_t u32val; | |
2295 | uint16_t u16val; | |
2296 | uint8_t u8val; | |
2297 | struct pci_dev *pdev; | |
2298 | int rc; | |
2299 | ||
2300 | pdev = phba->pcidev; | |
2301 | if (!pdev) | |
2302 | return -EFAULT; | |
2303 | ||
2304 | /* This is a user write operation */ | |
2305 | debug->op = LPFC_IDIAG_OP_WR; | |
2306 | ||
2307 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
86a80846 | 2308 | if (rc < 0) |
2a622bfb JS |
2309 | return rc; |
2310 | ||
2311 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { | |
86a80846 JS |
2312 | /* Sanity check on PCI config read command line arguments */ |
2313 | if (rc != LPFC_PCI_CFG_RD_CMD_ARG) | |
2314 | goto error_out; | |
2a622bfb | 2315 | /* Read command from PCI config space, set up command fields */ |
b76f2dc9 JS |
2316 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
2317 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; | |
86a80846 JS |
2318 | if (count == LPFC_PCI_CFG_BROWSE) { |
2319 | if (where % sizeof(uint32_t)) | |
2a622bfb | 2320 | goto error_out; |
86a80846 JS |
2321 | /* Starting offset to browse */ |
2322 | idiag.offset.last_rd = where; | |
2a622bfb JS |
2323 | } else if ((count != sizeof(uint8_t)) && |
2324 | (count != sizeof(uint16_t)) && | |
2325 | (count != sizeof(uint32_t))) | |
2326 | goto error_out; | |
2327 | if (count == sizeof(uint8_t)) { | |
2328 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) | |
2329 | goto error_out; | |
2330 | if (where % sizeof(uint8_t)) | |
2331 | goto error_out; | |
2332 | } | |
2333 | if (count == sizeof(uint16_t)) { | |
2334 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) | |
2335 | goto error_out; | |
2336 | if (where % sizeof(uint16_t)) | |
2337 | goto error_out; | |
2338 | } | |
2339 | if (count == sizeof(uint32_t)) { | |
2340 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) | |
2341 | goto error_out; | |
2342 | if (where % sizeof(uint32_t)) | |
2343 | goto error_out; | |
2344 | } | |
2345 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || | |
2346 | idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || | |
2347 | idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
86a80846 JS |
2348 | /* Sanity check on PCI config write command line arguments */ |
2349 | if (rc != LPFC_PCI_CFG_WR_CMD_ARG) | |
2350 | goto error_out; | |
2a622bfb | 2351 | /* Write command to PCI config space, read-modify-write */ |
b76f2dc9 JS |
2352 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
2353 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; | |
2354 | value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; | |
2a622bfb JS |
2355 | /* Sanity checks */ |
2356 | if ((count != sizeof(uint8_t)) && | |
2357 | (count != sizeof(uint16_t)) && | |
2358 | (count != sizeof(uint32_t))) | |
2359 | goto error_out; | |
2360 | if (count == sizeof(uint8_t)) { | |
2361 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) | |
2362 | goto error_out; | |
2363 | if (where % sizeof(uint8_t)) | |
2364 | goto error_out; | |
2365 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
2366 | pci_write_config_byte(pdev, where, | |
2367 | (uint8_t)value); | |
2368 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
2369 | rc = pci_read_config_byte(pdev, where, &u8val); | |
2370 | if (!rc) { | |
2371 | u8val |= (uint8_t)value; | |
2372 | pci_write_config_byte(pdev, where, | |
2373 | u8val); | |
2374 | } | |
2375 | } | |
2376 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
2377 | rc = pci_read_config_byte(pdev, where, &u8val); | |
2378 | if (!rc) { | |
2379 | u8val &= (uint8_t)(~value); | |
2380 | pci_write_config_byte(pdev, where, | |
2381 | u8val); | |
2382 | } | |
2383 | } | |
2384 | } | |
2385 | if (count == sizeof(uint16_t)) { | |
2386 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) | |
2387 | goto error_out; | |
2388 | if (where % sizeof(uint16_t)) | |
2389 | goto error_out; | |
2390 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
2391 | pci_write_config_word(pdev, where, | |
2392 | (uint16_t)value); | |
2393 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
2394 | rc = pci_read_config_word(pdev, where, &u16val); | |
2395 | if (!rc) { | |
2396 | u16val |= (uint16_t)value; | |
2397 | pci_write_config_word(pdev, where, | |
2398 | u16val); | |
2399 | } | |
2400 | } | |
2401 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
2402 | rc = pci_read_config_word(pdev, where, &u16val); | |
2403 | if (!rc) { | |
2404 | u16val &= (uint16_t)(~value); | |
2405 | pci_write_config_word(pdev, where, | |
2406 | u16val); | |
2407 | } | |
2408 | } | |
2409 | } | |
2410 | if (count == sizeof(uint32_t)) { | |
2411 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) | |
2412 | goto error_out; | |
2413 | if (where % sizeof(uint32_t)) | |
2414 | goto error_out; | |
2415 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
2416 | pci_write_config_dword(pdev, where, value); | |
2417 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
2418 | rc = pci_read_config_dword(pdev, where, | |
2419 | &u32val); | |
2420 | if (!rc) { | |
2421 | u32val |= value; | |
2422 | pci_write_config_dword(pdev, where, | |
2423 | u32val); | |
2424 | } | |
2425 | } | |
2426 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
2427 | rc = pci_read_config_dword(pdev, where, | |
2428 | &u32val); | |
2429 | if (!rc) { | |
2430 | u32val &= ~value; | |
2431 | pci_write_config_dword(pdev, where, | |
2432 | u32val); | |
2433 | } | |
2434 | } | |
2435 | } | |
2436 | } else | |
2437 | /* All other opecodes are illegal for now */ | |
2438 | goto error_out; | |
2439 | ||
2440 | return nbytes; | |
2441 | error_out: | |
2442 | memset(&idiag, 0, sizeof(idiag)); | |
2443 | return -EINVAL; | |
2444 | } | |
2445 | ||
b76f2dc9 JS |
2446 | /** |
2447 | * lpfc_idiag_baracc_read - idiag debugfs pci bar access read | |
2448 | * @file: The file pointer to read from. | |
2449 | * @buf: The buffer to copy the data to. | |
2450 | * @nbytes: The number of bytes to read. | |
2451 | * @ppos: The position in the file to start reading from. | |
2452 | * | |
2453 | * Description: | |
2454 | * This routine reads data from the @phba pci bar memory mapped space | |
2455 | * according to the idiag command, and copies to user @buf. | |
2456 | * | |
2457 | * Returns: | |
2458 | * This function returns the amount of data that was read (this could be less | |
2459 | * than @nbytes if the end of the file was reached) or a negative error value. | |
2460 | **/ | |
2461 | static ssize_t | |
2462 | lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, | |
2463 | loff_t *ppos) | |
2464 | { | |
2465 | struct lpfc_debug *debug = file->private_data; | |
2466 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2467 | int offset_label, offset, offset_run, len = 0, index; | |
2468 | int bar_num, acc_range, bar_size; | |
2469 | char *pbuffer; | |
2470 | void __iomem *mem_mapped_bar; | |
2471 | uint32_t if_type; | |
2472 | struct pci_dev *pdev; | |
2473 | uint32_t u32val; | |
2474 | ||
2475 | pdev = phba->pcidev; | |
2476 | if (!pdev) | |
2477 | return 0; | |
2478 | ||
2479 | /* This is a user read operation */ | |
2480 | debug->op = LPFC_IDIAG_OP_RD; | |
2481 | ||
2482 | if (!debug->buffer) | |
2483 | debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); | |
2484 | if (!debug->buffer) | |
2485 | return 0; | |
2486 | pbuffer = debug->buffer; | |
2487 | ||
2488 | if (*ppos) | |
2489 | return 0; | |
2490 | ||
2491 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { | |
2492 | bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; | |
2493 | offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; | |
2494 | acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; | |
2495 | bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; | |
2496 | } else | |
2497 | return 0; | |
2498 | ||
2499 | if (acc_range == 0) | |
2500 | return 0; | |
2501 | ||
2502 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
2503 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { | |
2504 | if (bar_num == IDIAG_BARACC_BAR_0) | |
2505 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
2506 | else if (bar_num == IDIAG_BARACC_BAR_1) | |
2507 | mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; | |
2508 | else if (bar_num == IDIAG_BARACC_BAR_2) | |
2509 | mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; | |
2510 | else | |
2511 | return 0; | |
2512 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
2513 | if (bar_num == IDIAG_BARACC_BAR_0) | |
2514 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
2515 | else | |
2516 | return 0; | |
2517 | } else | |
2518 | return 0; | |
2519 | ||
2520 | /* Read single PCI bar space register */ | |
2521 | if (acc_range == SINGLE_WORD) { | |
2522 | offset_run = offset; | |
2523 | u32val = readl(mem_mapped_bar + offset_run); | |
2524 | len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
2525 | "%05x: %08x\n", offset_run, u32val); | |
2526 | } else | |
2527 | goto baracc_browse; | |
2528 | ||
2529 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2530 | ||
2531 | baracc_browse: | |
2532 | ||
2533 | /* Browse all PCI bar space registers */ | |
2534 | offset_label = idiag.offset.last_rd; | |
2535 | offset_run = offset_label; | |
2536 | ||
2537 | /* Read PCI bar memory mapped space */ | |
2538 | len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
2539 | "%05x: ", offset_label); | |
2540 | index = LPFC_PCI_BAR_RD_SIZE; | |
2541 | while (index > 0) { | |
2542 | u32val = readl(mem_mapped_bar + offset_run); | |
2543 | len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
2544 | "%08x ", u32val); | |
2545 | offset_run += sizeof(uint32_t); | |
2546 | if (acc_range == LPFC_PCI_BAR_BROWSE) { | |
2547 | if (offset_run >= bar_size) { | |
2548 | len += snprintf(pbuffer+len, | |
2549 | LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); | |
2550 | break; | |
2551 | } | |
2552 | } else { | |
2553 | if (offset_run >= offset + | |
2554 | (acc_range * sizeof(uint32_t))) { | |
2555 | len += snprintf(pbuffer+len, | |
2556 | LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); | |
2557 | break; | |
2558 | } | |
2559 | } | |
2560 | index -= sizeof(uint32_t); | |
2561 | if (!index) | |
2562 | len += snprintf(pbuffer+len, | |
2563 | LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); | |
2564 | else if (!(index % (8 * sizeof(uint32_t)))) { | |
2565 | offset_label += (8 * sizeof(uint32_t)); | |
2566 | len += snprintf(pbuffer+len, | |
2567 | LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
2568 | "\n%05x: ", offset_label); | |
2569 | } | |
2570 | } | |
2571 | ||
2572 | /* Set up the offset for next portion of pci bar read */ | |
2573 | if (index == 0) { | |
2574 | idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; | |
2575 | if (acc_range == LPFC_PCI_BAR_BROWSE) { | |
2576 | if (idiag.offset.last_rd >= bar_size) | |
2577 | idiag.offset.last_rd = 0; | |
2578 | } else { | |
2579 | if (offset_run >= offset + | |
2580 | (acc_range * sizeof(uint32_t))) | |
2581 | idiag.offset.last_rd = offset; | |
2582 | } | |
2583 | } else { | |
2584 | if (acc_range == LPFC_PCI_BAR_BROWSE) | |
2585 | idiag.offset.last_rd = 0; | |
2586 | else | |
2587 | idiag.offset.last_rd = offset; | |
2588 | } | |
2589 | ||
2590 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2591 | } | |
2592 | ||
2593 | /** | |
2594 | * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands | |
2595 | * @file: The file pointer to read from. | |
2596 | * @buf: The buffer to copy the user data from. | |
2597 | * @nbytes: The number of bytes to get. | |
2598 | * @ppos: The position in the file to start reading from. | |
2599 | * | |
2600 | * This routine get the debugfs idiag command struct from user space and | |
2601 | * then perform the syntax check for PCI bar memory mapped space read or | |
2602 | * write command accordingly. In the case of PCI bar memory mapped space | |
2603 | * read command, it sets up the command in the idiag command struct for | |
2604 | * the debugfs read operation. In the case of PCI bar memorpy mapped space | |
2605 | * write operation, it executes the write operation into the PCI bar memory | |
2606 | * mapped space accordingly. | |
2607 | * | |
2608 | * It returns the @nbytges passing in from debugfs user space when successful. | |
2609 | * In case of error conditions, it returns proper error code back to the user | |
2610 | * space. | |
2611 | */ | |
2612 | static ssize_t | |
2613 | lpfc_idiag_baracc_write(struct file *file, const char __user *buf, | |
2614 | size_t nbytes, loff_t *ppos) | |
2615 | { | |
2616 | struct lpfc_debug *debug = file->private_data; | |
2617 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2618 | uint32_t bar_num, bar_size, offset, value, acc_range; | |
2619 | struct pci_dev *pdev; | |
2620 | void __iomem *mem_mapped_bar; | |
2621 | uint32_t if_type; | |
2622 | uint32_t u32val; | |
2623 | int rc; | |
2624 | ||
2625 | pdev = phba->pcidev; | |
2626 | if (!pdev) | |
2627 | return -EFAULT; | |
2628 | ||
2629 | /* This is a user write operation */ | |
2630 | debug->op = LPFC_IDIAG_OP_WR; | |
2631 | ||
2632 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
2633 | if (rc < 0) | |
2634 | return rc; | |
2635 | ||
2636 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
2637 | bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; | |
2638 | ||
2639 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { | |
2640 | if ((bar_num != IDIAG_BARACC_BAR_0) && | |
2641 | (bar_num != IDIAG_BARACC_BAR_1) && | |
2642 | (bar_num != IDIAG_BARACC_BAR_2)) | |
2643 | goto error_out; | |
2644 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
2645 | if (bar_num != IDIAG_BARACC_BAR_0) | |
2646 | goto error_out; | |
2647 | } else | |
2648 | goto error_out; | |
2649 | ||
2650 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { | |
2651 | if (bar_num == IDIAG_BARACC_BAR_0) { | |
2652 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
2653 | LPFC_PCI_IF0_BAR0_SIZE; | |
2654 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
2655 | } else if (bar_num == IDIAG_BARACC_BAR_1) { | |
2656 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
2657 | LPFC_PCI_IF0_BAR1_SIZE; | |
2658 | mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; | |
2659 | } else if (bar_num == IDIAG_BARACC_BAR_2) { | |
2660 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
2661 | LPFC_PCI_IF0_BAR2_SIZE; | |
2662 | mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; | |
2663 | } else | |
2664 | goto error_out; | |
2665 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
2666 | if (bar_num == IDIAG_BARACC_BAR_0) { | |
2667 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
2668 | LPFC_PCI_IF2_BAR0_SIZE; | |
2669 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
2670 | } else | |
2671 | goto error_out; | |
2672 | } else | |
2673 | goto error_out; | |
2674 | ||
2675 | offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; | |
2676 | if (offset % sizeof(uint32_t)) | |
2677 | goto error_out; | |
2678 | ||
2679 | bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; | |
2680 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { | |
2681 | /* Sanity check on PCI config read command line arguments */ | |
2682 | if (rc != LPFC_PCI_BAR_RD_CMD_ARG) | |
2683 | goto error_out; | |
2684 | acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; | |
2685 | if (acc_range == LPFC_PCI_BAR_BROWSE) { | |
2686 | if (offset > bar_size - sizeof(uint32_t)) | |
2687 | goto error_out; | |
2688 | /* Starting offset to browse */ | |
2689 | idiag.offset.last_rd = offset; | |
2690 | } else if (acc_range > SINGLE_WORD) { | |
2691 | if (offset + acc_range * sizeof(uint32_t) > bar_size) | |
2692 | goto error_out; | |
2693 | /* Starting offset to browse */ | |
2694 | idiag.offset.last_rd = offset; | |
2695 | } else if (acc_range != SINGLE_WORD) | |
2696 | goto error_out; | |
2697 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || | |
2698 | idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || | |
2699 | idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { | |
2700 | /* Sanity check on PCI bar write command line arguments */ | |
2701 | if (rc != LPFC_PCI_BAR_WR_CMD_ARG) | |
2702 | goto error_out; | |
2703 | /* Write command to PCI bar space, read-modify-write */ | |
2704 | acc_range = SINGLE_WORD; | |
2705 | value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; | |
2706 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { | |
2707 | writel(value, mem_mapped_bar + offset); | |
2708 | readl(mem_mapped_bar + offset); | |
2709 | } | |
2710 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { | |
2711 | u32val = readl(mem_mapped_bar + offset); | |
2712 | u32val |= value; | |
2713 | writel(u32val, mem_mapped_bar + offset); | |
2714 | readl(mem_mapped_bar + offset); | |
2715 | } | |
2716 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { | |
2717 | u32val = readl(mem_mapped_bar + offset); | |
2718 | u32val &= ~value; | |
2719 | writel(u32val, mem_mapped_bar + offset); | |
2720 | readl(mem_mapped_bar + offset); | |
2721 | } | |
2722 | } else | |
2723 | /* All other opecodes are illegal for now */ | |
2724 | goto error_out; | |
2725 | ||
2726 | return nbytes; | |
2727 | error_out: | |
2728 | memset(&idiag, 0, sizeof(idiag)); | |
2729 | return -EINVAL; | |
2730 | } | |
2731 | ||
07bcd98e JS |
2732 | static int |
2733 | __lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype, | |
2734 | char *pbuffer, int len) | |
2735 | { | |
2736 | if (!qp) | |
2737 | return len; | |
2738 | ||
2739 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2740 | "\t\t%s WQ info: ", wqtype); | |
2741 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2742 | "AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n", | |
2743 | qp->assoc_qid, qp->q_cnt_1, | |
2744 | (unsigned long long)qp->q_cnt_4); | |
2745 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2746 | "\t\tWQID[%02d], QE-CNT[%04d], QE-SIZE[%04d], " | |
2747 | "HOST-IDX[%04d], PORT-IDX[%04d]", | |
2748 | qp->queue_id, qp->entry_count, | |
2749 | qp->entry_size, qp->host_index, | |
2750 | qp->hba_index); | |
2751 | len += snprintf(pbuffer + len, | |
2752 | LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); | |
2753 | return len; | |
2754 | } | |
2755 | ||
2756 | static int | |
2757 | lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer, | |
2758 | int *len, int max_cnt, int cq_id) | |
2759 | { | |
2760 | struct lpfc_queue *qp; | |
2761 | int qidx; | |
2762 | ||
2763 | for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { | |
2764 | qp = phba->sli4_hba.fcp_wq[qidx]; | |
2765 | if (qp->assoc_qid != cq_id) | |
2766 | continue; | |
2767 | *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); | |
2768 | if (*len >= max_cnt) | |
2769 | return 1; | |
2770 | } | |
895427bd JS |
2771 | for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { |
2772 | qp = phba->sli4_hba.nvme_wq[qidx]; | |
2773 | if (qp->assoc_qid != cq_id) | |
2774 | continue; | |
2775 | *len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len); | |
2776 | if (*len >= max_cnt) | |
2777 | return 1; | |
2778 | } | |
07bcd98e JS |
2779 | return 0; |
2780 | } | |
2781 | ||
2782 | static int | |
2783 | __lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype, | |
2784 | char *pbuffer, int len) | |
2785 | { | |
2786 | if (!qp) | |
2787 | return len; | |
2788 | ||
2789 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2790 | "\t%s CQ info: ", cqtype); | |
2791 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2792 | "AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x " | |
2793 | "xabt:x%x wq:x%llx]\n", | |
2794 | qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, | |
2795 | qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); | |
2796 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2797 | "\tCQID[%02d], QE-CNT[%04d], QE-SIZE[%04d], " | |
2798 | "HOST-IDX[%04d], PORT-IDX[%04d]", | |
2799 | qp->queue_id, qp->entry_count, | |
2800 | qp->entry_size, qp->host_index, | |
2801 | qp->hba_index); | |
2802 | ||
2803 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); | |
2804 | ||
2805 | return len; | |
2806 | } | |
2807 | ||
2808 | static int | |
2809 | __lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp, | |
2810 | char *rqtype, char *pbuffer, int len) | |
2811 | { | |
2812 | if (!qp || !datqp) | |
2813 | return len; | |
2814 | ||
2815 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2816 | "\t\t%s RQ info: ", rqtype); | |
2817 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2818 | "AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x " | |
2819 | "trunc:x%x rcv:x%llx]\n", | |
2820 | qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2, | |
2821 | qp->q_cnt_3, (unsigned long long)qp->q_cnt_4); | |
2822 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2823 | "\t\tHQID[%02d], QE-CNT[%04d], QE-SIZE[%04d], " | |
2824 | "HOST-IDX[%04d], PORT-IDX[%04d]\n", | |
2825 | qp->queue_id, qp->entry_count, qp->entry_size, | |
2826 | qp->host_index, qp->hba_index); | |
2827 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2828 | "\t\tDQID[%02d], QE-CNT[%04d], QE-SIZE[%04d], " | |
2829 | "HOST-IDX[%04d], PORT-IDX[%04d]\n", | |
2830 | datqp->queue_id, datqp->entry_count, | |
2831 | datqp->entry_size, datqp->host_index, | |
2832 | datqp->hba_index); | |
2833 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); | |
2834 | ||
2835 | return len; | |
2836 | } | |
2837 | ||
2838 | static int | |
2839 | lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer, | |
2840 | int *len, int max_cnt, int eq_id) | |
2841 | { | |
2842 | struct lpfc_queue *qp; | |
2843 | int qidx, rc; | |
2844 | ||
2845 | for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { | |
2846 | qp = phba->sli4_hba.fcp_cq[qidx]; | |
2847 | if (qp->assoc_qid != eq_id) | |
2848 | continue; | |
2849 | ||
2850 | *len = __lpfc_idiag_print_cq(qp, "FCP", pbuffer, *len); | |
2851 | ||
2852 | /* Reset max counter */ | |
2853 | qp->CQ_max_cqe = 0; | |
2854 | ||
2855 | if (*len >= max_cnt) | |
2856 | return 1; | |
2857 | ||
2858 | rc = lpfc_idiag_wqs_for_cq(phba, "FCP", pbuffer, len, | |
2859 | max_cnt, qp->queue_id); | |
2860 | if (rc) | |
2861 | return 1; | |
2862 | } | |
2863 | ||
895427bd JS |
2864 | for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { |
2865 | qp = phba->sli4_hba.nvme_cq[qidx]; | |
2866 | if (qp->assoc_qid != eq_id) | |
2867 | continue; | |
2868 | ||
2869 | *len = __lpfc_idiag_print_cq(qp, "NVME", pbuffer, *len); | |
2870 | ||
2871 | /* Reset max counter */ | |
2872 | qp->CQ_max_cqe = 0; | |
2873 | ||
2874 | if (*len >= max_cnt) | |
2875 | return 1; | |
2876 | ||
2877 | rc = lpfc_idiag_wqs_for_cq(phba, "NVME", pbuffer, len, | |
2878 | max_cnt, qp->queue_id); | |
2879 | if (rc) | |
2880 | return 1; | |
2881 | } | |
2882 | ||
07bcd98e JS |
2883 | return 0; |
2884 | } | |
2885 | ||
2886 | static int | |
2887 | __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype, | |
2888 | char *pbuffer, int len) | |
2889 | { | |
2890 | if (!qp) | |
2891 | return len; | |
2892 | ||
2893 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2894 | "\n%s EQ info: EQ-STAT[max:x%x noE:x%x " | |
2895 | "bs:x%x proc:x%llx]\n", | |
2896 | eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3, | |
2897 | (unsigned long long)qp->q_cnt_4); | |
2898 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, | |
2899 | "EQID[%02d], QE-CNT[%04d], QE-SIZE[%04d], " | |
2900 | "HOST-IDX[%04d], PORT-IDX[%04d]", | |
2901 | qp->queue_id, qp->entry_count, qp->entry_size, | |
2902 | qp->host_index, qp->hba_index); | |
2903 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n"); | |
2904 | ||
2905 | return len; | |
2906 | } | |
2907 | ||
2a622bfb JS |
2908 | /** |
2909 | * lpfc_idiag_queinfo_read - idiag debugfs read queue information | |
2910 | * @file: The file pointer to read from. | |
2911 | * @buf: The buffer to copy the data to. | |
2912 | * @nbytes: The number of bytes to read. | |
2913 | * @ppos: The position in the file to start reading from. | |
2914 | * | |
2915 | * Description: | |
2916 | * This routine reads data from the @phba SLI4 PCI function queue information, | |
2917 | * and copies to user @buf. | |
07bcd98e JS |
2918 | * This routine only returns 1 EQs worth of information. It remembers the last |
2919 | * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will | |
2920 | * retrieve all EQs allocated for the phba. | |
2a622bfb JS |
2921 | * |
2922 | * Returns: | |
2923 | * This function returns the amount of data that was read (this could be less | |
2924 | * than @nbytes if the end of the file was reached) or a negative error value. | |
2925 | **/ | |
2926 | static ssize_t | |
2927 | lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, | |
2928 | loff_t *ppos) | |
2929 | { | |
2930 | struct lpfc_debug *debug = file->private_data; | |
2931 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2a622bfb | 2932 | char *pbuffer; |
07bcd98e | 2933 | int max_cnt, rc, x, len = 0; |
c85a65ac JS |
2934 | struct lpfc_queue *qp = NULL; |
2935 | ||
2a622bfb JS |
2936 | if (!debug->buffer) |
2937 | debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); | |
2938 | if (!debug->buffer) | |
2939 | return 0; | |
2940 | pbuffer = debug->buffer; | |
07bcd98e | 2941 | max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256; |
2a622bfb JS |
2942 | |
2943 | if (*ppos) | |
2944 | return 0; | |
2945 | ||
c85a65ac JS |
2946 | spin_lock_irq(&phba->hbalock); |
2947 | ||
2948 | /* Fast-path event queue */ | |
895427bd | 2949 | if (phba->sli4_hba.hba_eq && phba->io_channel_irqs) { |
c85a65ac | 2950 | |
07bcd98e | 2951 | x = phba->lpfc_idiag_last_eq; |
895427bd | 2952 | if (phba->cfg_fof && (x >= phba->io_channel_irqs)) { |
07bcd98e JS |
2953 | phba->lpfc_idiag_last_eq = 0; |
2954 | goto fof; | |
2955 | } | |
2956 | phba->lpfc_idiag_last_eq++; | |
895427bd | 2957 | if (phba->lpfc_idiag_last_eq >= phba->io_channel_irqs) |
07bcd98e JS |
2958 | if (phba->cfg_fof == 0) |
2959 | phba->lpfc_idiag_last_eq = 0; | |
c85a65ac | 2960 | |
07bcd98e JS |
2961 | len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, |
2962 | "EQ %d out of %d HBA EQs\n", | |
895427bd | 2963 | x, phba->io_channel_irqs); |
c85a65ac | 2964 | |
07bcd98e JS |
2965 | /* Fast-path EQ */ |
2966 | qp = phba->sli4_hba.hba_eq[x]; | |
2967 | if (!qp) | |
2968 | goto out; | |
c85a65ac | 2969 | |
07bcd98e | 2970 | len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len); |
c85a65ac | 2971 | |
07bcd98e JS |
2972 | /* Reset max counter */ |
2973 | qp->EQ_max_eqe = 0; | |
c85a65ac | 2974 | |
07bcd98e JS |
2975 | if (len >= max_cnt) |
2976 | goto too_big; | |
c85a65ac | 2977 | |
895427bd | 2978 | /* will dump both fcp and nvme cqs/wqs for the eq */ |
07bcd98e JS |
2979 | rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len, |
2980 | max_cnt, qp->queue_id); | |
2981 | if (rc) | |
2982 | goto too_big; | |
c85a65ac | 2983 | |
07bcd98e JS |
2984 | /* Only EQ 0 has slow path CQs configured */ |
2985 | if (x) | |
2986 | goto out; | |
c85a65ac | 2987 | |
07bcd98e JS |
2988 | /* Slow-path mailbox CQ */ |
2989 | qp = phba->sli4_hba.mbx_cq; | |
2990 | len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len); | |
2991 | if (len >= max_cnt) | |
2992 | goto too_big; | |
2a622bfb | 2993 | |
07bcd98e JS |
2994 | /* Slow-path MBOX MQ */ |
2995 | qp = phba->sli4_hba.mbx_wq; | |
2996 | len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len); | |
2997 | if (len >= max_cnt) | |
2998 | goto too_big; | |
2a622bfb | 2999 | |
07bcd98e JS |
3000 | /* Slow-path ELS response CQ */ |
3001 | qp = phba->sli4_hba.els_cq; | |
3002 | len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len); | |
3003 | /* Reset max counter */ | |
3004 | if (qp) | |
3005 | qp->CQ_max_cqe = 0; | |
3006 | if (len >= max_cnt) | |
3007 | goto too_big; | |
2a622bfb | 3008 | |
07bcd98e JS |
3009 | /* Slow-path ELS WQ */ |
3010 | qp = phba->sli4_hba.els_wq; | |
3011 | len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len); | |
3012 | if (len >= max_cnt) | |
3013 | goto too_big; | |
2a622bfb | 3014 | |
895427bd JS |
3015 | /* Slow-path NVME LS response CQ */ |
3016 | qp = phba->sli4_hba.nvmels_cq; | |
3017 | len = __lpfc_idiag_print_cq(qp, "NVME LS", | |
3018 | pbuffer, len); | |
3019 | /* Reset max counter */ | |
3020 | if (qp) | |
3021 | qp->CQ_max_cqe = 0; | |
3022 | if (len >= max_cnt) | |
3023 | goto too_big; | |
3024 | ||
3025 | /* Slow-path NVME LS WQ */ | |
3026 | qp = phba->sli4_hba.nvmels_wq; | |
3027 | len = __lpfc_idiag_print_wq(qp, "NVME LS", | |
3028 | pbuffer, len); | |
3029 | if (len >= max_cnt) | |
3030 | goto too_big; | |
3031 | ||
07bcd98e JS |
3032 | qp = phba->sli4_hba.hdr_rq; |
3033 | len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq, | |
3034 | "RQpair", pbuffer, len); | |
3035 | if (len >= max_cnt) | |
3036 | goto too_big; | |
2a622bfb | 3037 | |
07bcd98e | 3038 | goto out; |
2a622bfb | 3039 | } |
2a622bfb | 3040 | |
07bcd98e | 3041 | fof: |
1ba981fd JS |
3042 | if (phba->cfg_fof) { |
3043 | /* FOF EQ */ | |
3044 | qp = phba->sli4_hba.fof_eq; | |
07bcd98e | 3045 | len = __lpfc_idiag_print_eq(qp, "FOF", pbuffer, len); |
1ba981fd JS |
3046 | |
3047 | /* Reset max counter */ | |
07bcd98e JS |
3048 | if (qp) |
3049 | qp->EQ_max_eqe = 0; | |
1ba981fd | 3050 | |
1ba981fd JS |
3051 | if (len >= max_cnt) |
3052 | goto too_big; | |
1ba981fd JS |
3053 | |
3054 | /* OAS CQ */ | |
3055 | qp = phba->sli4_hba.oas_cq; | |
07bcd98e JS |
3056 | len = __lpfc_idiag_print_cq(qp, "OAS", pbuffer, len); |
3057 | /* Reset max counter */ | |
3058 | if (qp) | |
1ba981fd | 3059 | qp->CQ_max_cqe = 0; |
07bcd98e JS |
3060 | if (len >= max_cnt) |
3061 | goto too_big; | |
1ba981fd JS |
3062 | |
3063 | /* OAS WQ */ | |
3064 | qp = phba->sli4_hba.oas_wq; | |
07bcd98e JS |
3065 | len = __lpfc_idiag_print_wq(qp, "OAS", pbuffer, len); |
3066 | if (len >= max_cnt) | |
3067 | goto too_big; | |
1ba981fd | 3068 | } |
07bcd98e | 3069 | |
c85a65ac JS |
3070 | spin_unlock_irq(&phba->hbalock); |
3071 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
3072 | ||
3073 | too_big: | |
07bcd98e JS |
3074 | len += snprintf(pbuffer + len, |
3075 | LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n"); | |
3076 | out: | |
c85a65ac | 3077 | spin_unlock_irq(&phba->hbalock); |
2a622bfb JS |
3078 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); |
3079 | } | |
3080 | ||
86a80846 JS |
3081 | /** |
3082 | * lpfc_idiag_que_param_check - queue access command parameter sanity check | |
3083 | * @q: The pointer to queue structure. | |
3084 | * @index: The index into a queue entry. | |
3085 | * @count: The number of queue entries to access. | |
3086 | * | |
3087 | * Description: | |
3088 | * The routine performs sanity check on device queue access method commands. | |
3089 | * | |
3090 | * Returns: | |
3091 | * This function returns -EINVAL when fails the sanity check, otherwise, it | |
3092 | * returns 0. | |
3093 | **/ | |
3094 | static int | |
3095 | lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) | |
3096 | { | |
3097 | /* Only support single entry read or browsing */ | |
3098 | if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) | |
3099 | return -EINVAL; | |
3100 | if (index > q->entry_count - 1) | |
3101 | return -EINVAL; | |
3102 | return 0; | |
3103 | } | |
3104 | ||
3105 | /** | |
3106 | * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index | |
3107 | * @pbuffer: The pointer to buffer to copy the read data into. | |
3108 | * @pque: The pointer to the queue to be read. | |
3109 | * @index: The index into the queue entry. | |
3110 | * | |
3111 | * Description: | |
3112 | * This routine reads out a single entry from the given queue's index location | |
3113 | * and copies it into the buffer provided. | |
3114 | * | |
3115 | * Returns: | |
3116 | * This function returns 0 when it fails, otherwise, it returns the length of | |
3117 | * the data read into the buffer provided. | |
3118 | **/ | |
3119 | static int | |
3120 | lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, | |
3121 | uint32_t index) | |
3122 | { | |
3123 | int offset, esize; | |
3124 | uint32_t *pentry; | |
3125 | ||
3126 | if (!pbuffer || !pque) | |
3127 | return 0; | |
3128 | ||
3129 | esize = pque->entry_size; | |
3130 | len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, | |
3131 | "QE-INDEX[%04d]:\n", index); | |
3132 | ||
3133 | offset = 0; | |
3134 | pentry = pque->qe[index].address; | |
3135 | while (esize > 0) { | |
3136 | len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, | |
3137 | "%08x ", *pentry); | |
3138 | pentry++; | |
3139 | offset += sizeof(uint32_t); | |
3140 | esize -= sizeof(uint32_t); | |
3141 | if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) | |
3142 | len += snprintf(pbuffer+len, | |
3143 | LPFC_QUE_ACC_BUF_SIZE-len, "\n"); | |
3144 | } | |
3145 | len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); | |
3146 | ||
3147 | return len; | |
3148 | } | |
3149 | ||
3150 | /** | |
3151 | * lpfc_idiag_queacc_read - idiag debugfs read port queue | |
3152 | * @file: The file pointer to read from. | |
3153 | * @buf: The buffer to copy the data to. | |
3154 | * @nbytes: The number of bytes to read. | |
3155 | * @ppos: The position in the file to start reading from. | |
3156 | * | |
3157 | * Description: | |
3158 | * This routine reads data from the @phba device queue memory according to the | |
3159 | * idiag command, and copies to user @buf. Depending on the queue dump read | |
3160 | * command setup, it does either a single queue entry read or browing through | |
3161 | * all entries of the queue. | |
3162 | * | |
3163 | * Returns: | |
3164 | * This function returns the amount of data that was read (this could be less | |
3165 | * than @nbytes if the end of the file was reached) or a negative error value. | |
3166 | **/ | |
3167 | static ssize_t | |
3168 | lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, | |
3169 | loff_t *ppos) | |
3170 | { | |
3171 | struct lpfc_debug *debug = file->private_data; | |
3172 | uint32_t last_index, index, count; | |
3173 | struct lpfc_queue *pque = NULL; | |
3174 | char *pbuffer; | |
3175 | int len = 0; | |
3176 | ||
3177 | /* This is a user read operation */ | |
3178 | debug->op = LPFC_IDIAG_OP_RD; | |
3179 | ||
3180 | if (!debug->buffer) | |
3181 | debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); | |
3182 | if (!debug->buffer) | |
3183 | return 0; | |
3184 | pbuffer = debug->buffer; | |
3185 | ||
3186 | if (*ppos) | |
3187 | return 0; | |
3188 | ||
3189 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { | |
b76f2dc9 JS |
3190 | index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; |
3191 | count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; | |
86a80846 JS |
3192 | pque = (struct lpfc_queue *)idiag.ptr_private; |
3193 | } else | |
3194 | return 0; | |
3195 | ||
3196 | /* Browse the queue starting from index */ | |
3197 | if (count == LPFC_QUE_ACC_BROWSE) | |
3198 | goto que_browse; | |
3199 | ||
3200 | /* Read a single entry from the queue */ | |
3201 | len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); | |
3202 | ||
3203 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
3204 | ||
3205 | que_browse: | |
3206 | ||
3207 | /* Browse all entries from the queue */ | |
3208 | last_index = idiag.offset.last_rd; | |
3209 | index = last_index; | |
3210 | ||
3211 | while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { | |
3212 | len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); | |
3213 | index++; | |
3214 | if (index > pque->entry_count - 1) | |
3215 | break; | |
3216 | } | |
3217 | ||
3218 | /* Set up the offset for next portion of pci cfg read */ | |
3219 | if (index > pque->entry_count - 1) | |
3220 | index = 0; | |
3221 | idiag.offset.last_rd = index; | |
3222 | ||
3223 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
3224 | } | |
3225 | ||
3226 | /** | |
3227 | * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands | |
3228 | * @file: The file pointer to read from. | |
3229 | * @buf: The buffer to copy the user data from. | |
3230 | * @nbytes: The number of bytes to get. | |
3231 | * @ppos: The position in the file to start reading from. | |
3232 | * | |
3233 | * This routine get the debugfs idiag command struct from user space and then | |
3234 | * perform the syntax check for port queue read (dump) or write (set) command | |
3235 | * accordingly. In the case of port queue read command, it sets up the command | |
3236 | * in the idiag command struct for the following debugfs read operation. In | |
3237 | * the case of port queue write operation, it executes the write operation | |
3238 | * into the port queue entry accordingly. | |
3239 | * | |
3240 | * It returns the @nbytges passing in from debugfs user space when successful. | |
3241 | * In case of error conditions, it returns proper error code back to the user | |
3242 | * space. | |
3243 | **/ | |
3244 | static ssize_t | |
3245 | lpfc_idiag_queacc_write(struct file *file, const char __user *buf, | |
3246 | size_t nbytes, loff_t *ppos) | |
3247 | { | |
3248 | struct lpfc_debug *debug = file->private_data; | |
3249 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
3250 | uint32_t qidx, quetp, queid, index, count, offset, value; | |
3251 | uint32_t *pentry; | |
895427bd | 3252 | struct lpfc_queue *pque, *qp; |
86a80846 JS |
3253 | int rc; |
3254 | ||
3255 | /* This is a user write operation */ | |
3256 | debug->op = LPFC_IDIAG_OP_WR; | |
3257 | ||
3258 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
3259 | if (rc < 0) | |
3260 | return rc; | |
3261 | ||
3262 | /* Get and sanity check on command feilds */ | |
b76f2dc9 JS |
3263 | quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; |
3264 | queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; | |
3265 | index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; | |
3266 | count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; | |
3267 | offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; | |
3268 | value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; | |
86a80846 JS |
3269 | |
3270 | /* Sanity check on command line arguments */ | |
3271 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || | |
3272 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || | |
3273 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { | |
3274 | if (rc != LPFC_QUE_ACC_WR_CMD_ARG) | |
3275 | goto error_out; | |
3276 | if (count != 1) | |
3277 | goto error_out; | |
3278 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { | |
3279 | if (rc != LPFC_QUE_ACC_RD_CMD_ARG) | |
3280 | goto error_out; | |
3281 | } else | |
3282 | goto error_out; | |
3283 | ||
3284 | switch (quetp) { | |
3285 | case LPFC_IDIAG_EQ: | |
67d12733 JS |
3286 | /* HBA event queue */ |
3287 | if (phba->sli4_hba.hba_eq) { | |
895427bd JS |
3288 | for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) { |
3289 | qp = phba->sli4_hba.hba_eq[qidx]; | |
3290 | if (qp && qp->queue_id == queid) { | |
2e90f4b5 | 3291 | /* Sanity check */ |
895427bd | 3292 | rc = lpfc_idiag_que_param_check(qp, |
86a80846 | 3293 | index, count); |
2e90f4b5 JS |
3294 | if (rc) |
3295 | goto error_out; | |
895427bd | 3296 | idiag.ptr_private = qp; |
2e90f4b5 JS |
3297 | goto pass_check; |
3298 | } | |
86a80846 JS |
3299 | } |
3300 | } | |
3301 | goto error_out; | |
3302 | break; | |
3303 | case LPFC_IDIAG_CQ: | |
3304 | /* MBX complete queue */ | |
2e90f4b5 JS |
3305 | if (phba->sli4_hba.mbx_cq && |
3306 | phba->sli4_hba.mbx_cq->queue_id == queid) { | |
86a80846 JS |
3307 | /* Sanity check */ |
3308 | rc = lpfc_idiag_que_param_check( | |
3309 | phba->sli4_hba.mbx_cq, index, count); | |
3310 | if (rc) | |
3311 | goto error_out; | |
3312 | idiag.ptr_private = phba->sli4_hba.mbx_cq; | |
3313 | goto pass_check; | |
3314 | } | |
3315 | /* ELS complete queue */ | |
2e90f4b5 JS |
3316 | if (phba->sli4_hba.els_cq && |
3317 | phba->sli4_hba.els_cq->queue_id == queid) { | |
86a80846 JS |
3318 | /* Sanity check */ |
3319 | rc = lpfc_idiag_que_param_check( | |
3320 | phba->sli4_hba.els_cq, index, count); | |
3321 | if (rc) | |
3322 | goto error_out; | |
3323 | idiag.ptr_private = phba->sli4_hba.els_cq; | |
3324 | goto pass_check; | |
3325 | } | |
895427bd JS |
3326 | /* NVME LS complete queue */ |
3327 | if (phba->sli4_hba.nvmels_cq && | |
3328 | phba->sli4_hba.nvmels_cq->queue_id == queid) { | |
3329 | /* Sanity check */ | |
3330 | rc = lpfc_idiag_que_param_check( | |
3331 | phba->sli4_hba.nvmels_cq, index, count); | |
3332 | if (rc) | |
3333 | goto error_out; | |
3334 | idiag.ptr_private = phba->sli4_hba.nvmels_cq; | |
3335 | goto pass_check; | |
3336 | } | |
bd2cdd5e JS |
3337 | /* NVME LS complete queue */ |
3338 | if (phba->sli4_hba.nvmels_cq && | |
3339 | phba->sli4_hba.nvmels_cq->queue_id == queid) { | |
3340 | /* Sanity check */ | |
3341 | rc = lpfc_idiag_que_param_check( | |
3342 | phba->sli4_hba.nvmels_cq, index, count); | |
3343 | if (rc) | |
3344 | goto error_out; | |
3345 | idiag.ptr_private = phba->sli4_hba.nvmels_cq; | |
3346 | goto pass_check; | |
3347 | } | |
86a80846 | 3348 | /* FCP complete queue */ |
2e90f4b5 | 3349 | if (phba->sli4_hba.fcp_cq) { |
895427bd JS |
3350 | for (qidx = 0; qidx < phba->cfg_fcp_io_channel; |
3351 | qidx++) { | |
3352 | qp = phba->sli4_hba.fcp_cq[qidx]; | |
3353 | if (qp && qp->queue_id == queid) { | |
2e90f4b5 JS |
3354 | /* Sanity check */ |
3355 | rc = lpfc_idiag_que_param_check( | |
895427bd | 3356 | qp, index, count); |
2e90f4b5 JS |
3357 | if (rc) |
3358 | goto error_out; | |
895427bd | 3359 | idiag.ptr_private = qp; |
2e90f4b5 JS |
3360 | goto pass_check; |
3361 | } | |
895427bd | 3362 | } |
2e90f4b5 | 3363 | } |
bd2cdd5e JS |
3364 | /* NVME complete queue */ |
3365 | if (phba->sli4_hba.nvme_cq) { | |
3366 | qidx = 0; | |
3367 | do { | |
3368 | if (phba->sli4_hba.nvme_cq[qidx] && | |
3369 | phba->sli4_hba.nvme_cq[qidx]->queue_id == | |
3370 | queid) { | |
3371 | /* Sanity check */ | |
3372 | rc = lpfc_idiag_que_param_check( | |
3373 | phba->sli4_hba.nvme_cq[qidx], | |
3374 | index, count); | |
3375 | if (rc) | |
3376 | goto error_out; | |
3377 | idiag.ptr_private = | |
3378 | phba->sli4_hba.nvme_cq[qidx]; | |
3379 | goto pass_check; | |
3380 | } | |
3381 | } while (++qidx < phba->cfg_nvme_io_channel); | |
3382 | } | |
86a80846 JS |
3383 | goto error_out; |
3384 | break; | |
3385 | case LPFC_IDIAG_MQ: | |
3386 | /* MBX work queue */ | |
2e90f4b5 JS |
3387 | if (phba->sli4_hba.mbx_wq && |
3388 | phba->sli4_hba.mbx_wq->queue_id == queid) { | |
86a80846 JS |
3389 | /* Sanity check */ |
3390 | rc = lpfc_idiag_que_param_check( | |
3391 | phba->sli4_hba.mbx_wq, index, count); | |
3392 | if (rc) | |
3393 | goto error_out; | |
3394 | idiag.ptr_private = phba->sli4_hba.mbx_wq; | |
3395 | goto pass_check; | |
3396 | } | |
2e90f4b5 | 3397 | goto error_out; |
86a80846 JS |
3398 | break; |
3399 | case LPFC_IDIAG_WQ: | |
3400 | /* ELS work queue */ | |
2e90f4b5 JS |
3401 | if (phba->sli4_hba.els_wq && |
3402 | phba->sli4_hba.els_wq->queue_id == queid) { | |
86a80846 JS |
3403 | /* Sanity check */ |
3404 | rc = lpfc_idiag_que_param_check( | |
3405 | phba->sli4_hba.els_wq, index, count); | |
3406 | if (rc) | |
3407 | goto error_out; | |
3408 | idiag.ptr_private = phba->sli4_hba.els_wq; | |
3409 | goto pass_check; | |
3410 | } | |
895427bd JS |
3411 | /* NVME LS work queue */ |
3412 | if (phba->sli4_hba.nvmels_wq && | |
3413 | phba->sli4_hba.nvmels_wq->queue_id == queid) { | |
3414 | /* Sanity check */ | |
3415 | rc = lpfc_idiag_que_param_check( | |
3416 | phba->sli4_hba.nvmels_wq, index, count); | |
3417 | if (rc) | |
3418 | goto error_out; | |
3419 | idiag.ptr_private = phba->sli4_hba.nvmels_wq; | |
3420 | goto pass_check; | |
3421 | } | |
bd2cdd5e JS |
3422 | /* NVME LS work queue */ |
3423 | if (phba->sli4_hba.nvmels_wq && | |
3424 | phba->sli4_hba.nvmels_wq->queue_id == queid) { | |
3425 | /* Sanity check */ | |
3426 | rc = lpfc_idiag_que_param_check( | |
3427 | phba->sli4_hba.nvmels_wq, index, count); | |
3428 | if (rc) | |
3429 | goto error_out; | |
3430 | idiag.ptr_private = phba->sli4_hba.nvmels_wq; | |
3431 | goto pass_check; | |
3432 | } | |
86a80846 | 3433 | /* FCP work queue */ |
2e90f4b5 | 3434 | if (phba->sli4_hba.fcp_wq) { |
67d12733 | 3435 | for (qidx = 0; qidx < phba->cfg_fcp_io_channel; |
895427bd JS |
3436 | qidx++) { |
3437 | qp = phba->sli4_hba.fcp_wq[qidx]; | |
3438 | if (qp && qp->queue_id == queid) { | |
2e90f4b5 JS |
3439 | /* Sanity check */ |
3440 | rc = lpfc_idiag_que_param_check( | |
895427bd JS |
3441 | qp, index, count); |
3442 | if (rc) | |
3443 | goto error_out; | |
3444 | idiag.ptr_private = qp; | |
3445 | goto pass_check; | |
3446 | } | |
3447 | } | |
3448 | } | |
3449 | /* NVME work queue */ | |
3450 | if (phba->sli4_hba.nvme_wq) { | |
3451 | for (qidx = 0; qidx < phba->cfg_nvme_io_channel; | |
3452 | qidx++) { | |
3453 | qp = phba->sli4_hba.nvme_wq[qidx]; | |
3454 | if (qp && qp->queue_id == queid) { | |
3455 | /* Sanity check */ | |
3456 | rc = lpfc_idiag_que_param_check( | |
3457 | qp, index, count); | |
2e90f4b5 JS |
3458 | if (rc) |
3459 | goto error_out; | |
895427bd | 3460 | idiag.ptr_private = qp; |
2e90f4b5 JS |
3461 | goto pass_check; |
3462 | } | |
86a80846 JS |
3463 | } |
3464 | } | |
bd2cdd5e JS |
3465 | |
3466 | /* NVME work queues */ | |
3467 | if (phba->sli4_hba.nvme_wq) { | |
3468 | for (qidx = 0; qidx < phba->cfg_nvme_io_channel; | |
3469 | qidx++) { | |
3470 | if (!phba->sli4_hba.nvme_wq[qidx]) | |
3471 | continue; | |
3472 | if (phba->sli4_hba.nvme_wq[qidx]->queue_id == | |
3473 | queid) { | |
3474 | /* Sanity check */ | |
3475 | rc = lpfc_idiag_que_param_check( | |
3476 | phba->sli4_hba.nvme_wq[qidx], | |
3477 | index, count); | |
3478 | if (rc) | |
3479 | goto error_out; | |
3480 | idiag.ptr_private = | |
3481 | phba->sli4_hba.nvme_wq[qidx]; | |
3482 | goto pass_check; | |
3483 | } | |
3484 | } | |
3485 | } | |
86a80846 JS |
3486 | goto error_out; |
3487 | break; | |
3488 | case LPFC_IDIAG_RQ: | |
3489 | /* HDR queue */ | |
2e90f4b5 JS |
3490 | if (phba->sli4_hba.hdr_rq && |
3491 | phba->sli4_hba.hdr_rq->queue_id == queid) { | |
86a80846 JS |
3492 | /* Sanity check */ |
3493 | rc = lpfc_idiag_que_param_check( | |
3494 | phba->sli4_hba.hdr_rq, index, count); | |
3495 | if (rc) | |
3496 | goto error_out; | |
3497 | idiag.ptr_private = phba->sli4_hba.hdr_rq; | |
3498 | goto pass_check; | |
3499 | } | |
3500 | /* DAT queue */ | |
2e90f4b5 JS |
3501 | if (phba->sli4_hba.dat_rq && |
3502 | phba->sli4_hba.dat_rq->queue_id == queid) { | |
86a80846 JS |
3503 | /* Sanity check */ |
3504 | rc = lpfc_idiag_que_param_check( | |
3505 | phba->sli4_hba.dat_rq, index, count); | |
3506 | if (rc) | |
3507 | goto error_out; | |
3508 | idiag.ptr_private = phba->sli4_hba.dat_rq; | |
3509 | goto pass_check; | |
3510 | } | |
3511 | goto error_out; | |
3512 | break; | |
3513 | default: | |
3514 | goto error_out; | |
3515 | break; | |
3516 | } | |
3517 | ||
3518 | pass_check: | |
3519 | ||
3520 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { | |
3521 | if (count == LPFC_QUE_ACC_BROWSE) | |
3522 | idiag.offset.last_rd = index; | |
3523 | } | |
3524 | ||
3525 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || | |
3526 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || | |
3527 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { | |
3528 | /* Additional sanity checks on write operation */ | |
3529 | pque = (struct lpfc_queue *)idiag.ptr_private; | |
3530 | if (offset > pque->entry_size/sizeof(uint32_t) - 1) | |
3531 | goto error_out; | |
3532 | pentry = pque->qe[index].address; | |
3533 | pentry += offset; | |
3534 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) | |
3535 | *pentry = value; | |
3536 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) | |
3537 | *pentry |= value; | |
3538 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) | |
3539 | *pentry &= ~value; | |
3540 | } | |
3541 | return nbytes; | |
3542 | ||
3543 | error_out: | |
3544 | /* Clean out command structure on command error out */ | |
3545 | memset(&idiag, 0, sizeof(idiag)); | |
3546 | return -EINVAL; | |
3547 | } | |
3548 | ||
3549 | /** | |
3550 | * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register | |
3551 | * @phba: The pointer to hba structure. | |
3552 | * @pbuffer: The pointer to the buffer to copy the data to. | |
3553 | * @len: The lenght of bytes to copied. | |
3554 | * @drbregid: The id to doorbell registers. | |
3555 | * | |
3556 | * Description: | |
3557 | * This routine reads a doorbell register and copies its content to the | |
3558 | * user buffer pointed to by @pbuffer. | |
3559 | * | |
3560 | * Returns: | |
3561 | * This function returns the amount of data that was copied into @pbuffer. | |
3562 | **/ | |
3563 | static int | |
3564 | lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, | |
3565 | int len, uint32_t drbregid) | |
3566 | { | |
3567 | ||
3568 | if (!pbuffer) | |
3569 | return 0; | |
3570 | ||
3571 | switch (drbregid) { | |
3572 | case LPFC_DRB_EQCQ: | |
3573 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
3574 | "EQCQ-DRB-REG: 0x%08x\n", | |
3575 | readl(phba->sli4_hba.EQCQDBregaddr)); | |
3576 | break; | |
3577 | case LPFC_DRB_MQ: | |
3578 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
3579 | "MQ-DRB-REG: 0x%08x\n", | |
3580 | readl(phba->sli4_hba.MQDBregaddr)); | |
3581 | break; | |
3582 | case LPFC_DRB_WQ: | |
3583 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
3584 | "WQ-DRB-REG: 0x%08x\n", | |
3585 | readl(phba->sli4_hba.WQDBregaddr)); | |
3586 | break; | |
3587 | case LPFC_DRB_RQ: | |
3588 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
3589 | "RQ-DRB-REG: 0x%08x\n", | |
3590 | readl(phba->sli4_hba.RQDBregaddr)); | |
3591 | break; | |
3592 | default: | |
3593 | break; | |
3594 | } | |
3595 | ||
3596 | return len; | |
3597 | } | |
3598 | ||
3599 | /** | |
3600 | * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell | |
3601 | * @file: The file pointer to read from. | |
3602 | * @buf: The buffer to copy the data to. | |
3603 | * @nbytes: The number of bytes to read. | |
3604 | * @ppos: The position in the file to start reading from. | |
3605 | * | |
3606 | * Description: | |
3607 | * This routine reads data from the @phba device doorbell register according | |
3608 | * to the idiag command, and copies to user @buf. Depending on the doorbell | |
3609 | * register read command setup, it does either a single doorbell register | |
3610 | * read or dump all doorbell registers. | |
3611 | * | |
3612 | * Returns: | |
3613 | * This function returns the amount of data that was read (this could be less | |
3614 | * than @nbytes if the end of the file was reached) or a negative error value. | |
3615 | **/ | |
3616 | static ssize_t | |
3617 | lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, | |
3618 | loff_t *ppos) | |
3619 | { | |
3620 | struct lpfc_debug *debug = file->private_data; | |
3621 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
3622 | uint32_t drb_reg_id, i; | |
3623 | char *pbuffer; | |
3624 | int len = 0; | |
3625 | ||
3626 | /* This is a user read operation */ | |
3627 | debug->op = LPFC_IDIAG_OP_RD; | |
3628 | ||
3629 | if (!debug->buffer) | |
3630 | debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); | |
3631 | if (!debug->buffer) | |
3632 | return 0; | |
3633 | pbuffer = debug->buffer; | |
3634 | ||
3635 | if (*ppos) | |
3636 | return 0; | |
3637 | ||
3638 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) | |
b76f2dc9 | 3639 | drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; |
86a80846 JS |
3640 | else |
3641 | return 0; | |
3642 | ||
3643 | if (drb_reg_id == LPFC_DRB_ACC_ALL) | |
3644 | for (i = 1; i <= LPFC_DRB_MAX; i++) | |
3645 | len = lpfc_idiag_drbacc_read_reg(phba, | |
3646 | pbuffer, len, i); | |
3647 | else | |
3648 | len = lpfc_idiag_drbacc_read_reg(phba, | |
3649 | pbuffer, len, drb_reg_id); | |
3650 | ||
3651 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
3652 | } | |
3653 | ||
3654 | /** | |
3655 | * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands | |
3656 | * @file: The file pointer to read from. | |
3657 | * @buf: The buffer to copy the user data from. | |
3658 | * @nbytes: The number of bytes to get. | |
3659 | * @ppos: The position in the file to start reading from. | |
3660 | * | |
3661 | * This routine get the debugfs idiag command struct from user space and then | |
3662 | * perform the syntax check for port doorbell register read (dump) or write | |
3663 | * (set) command accordingly. In the case of port queue read command, it sets | |
3664 | * up the command in the idiag command struct for the following debugfs read | |
3665 | * operation. In the case of port doorbell register write operation, it | |
3666 | * executes the write operation into the port doorbell register accordingly. | |
3667 | * | |
3668 | * It returns the @nbytges passing in from debugfs user space when successful. | |
3669 | * In case of error conditions, it returns proper error code back to the user | |
3670 | * space. | |
3671 | **/ | |
3672 | static ssize_t | |
3673 | lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, | |
3674 | size_t nbytes, loff_t *ppos) | |
3675 | { | |
3676 | struct lpfc_debug *debug = file->private_data; | |
3677 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
b76f2dc9 | 3678 | uint32_t drb_reg_id, value, reg_val = 0; |
86a80846 JS |
3679 | void __iomem *drb_reg; |
3680 | int rc; | |
3681 | ||
3682 | /* This is a user write operation */ | |
3683 | debug->op = LPFC_IDIAG_OP_WR; | |
3684 | ||
3685 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
3686 | if (rc < 0) | |
3687 | return rc; | |
3688 | ||
3689 | /* Sanity check on command line arguments */ | |
b76f2dc9 JS |
3690 | drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; |
3691 | value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; | |
86a80846 JS |
3692 | |
3693 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || | |
3694 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || | |
3695 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { | |
3696 | if (rc != LPFC_DRB_ACC_WR_CMD_ARG) | |
3697 | goto error_out; | |
3698 | if (drb_reg_id > LPFC_DRB_MAX) | |
3699 | goto error_out; | |
3700 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { | |
3701 | if (rc != LPFC_DRB_ACC_RD_CMD_ARG) | |
3702 | goto error_out; | |
3703 | if ((drb_reg_id > LPFC_DRB_MAX) && | |
3704 | (drb_reg_id != LPFC_DRB_ACC_ALL)) | |
3705 | goto error_out; | |
3706 | } else | |
3707 | goto error_out; | |
3708 | ||
3709 | /* Perform the write access operation */ | |
3710 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || | |
3711 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || | |
3712 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { | |
3713 | switch (drb_reg_id) { | |
3714 | case LPFC_DRB_EQCQ: | |
3715 | drb_reg = phba->sli4_hba.EQCQDBregaddr; | |
3716 | break; | |
3717 | case LPFC_DRB_MQ: | |
3718 | drb_reg = phba->sli4_hba.MQDBregaddr; | |
3719 | break; | |
3720 | case LPFC_DRB_WQ: | |
3721 | drb_reg = phba->sli4_hba.WQDBregaddr; | |
3722 | break; | |
3723 | case LPFC_DRB_RQ: | |
3724 | drb_reg = phba->sli4_hba.RQDBregaddr; | |
3725 | break; | |
3726 | default: | |
3727 | goto error_out; | |
3728 | } | |
3729 | ||
3730 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) | |
3731 | reg_val = value; | |
3732 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { | |
3733 | reg_val = readl(drb_reg); | |
3734 | reg_val |= value; | |
3735 | } | |
3736 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { | |
3737 | reg_val = readl(drb_reg); | |
3738 | reg_val &= ~value; | |
3739 | } | |
3740 | writel(reg_val, drb_reg); | |
3741 | readl(drb_reg); /* flush */ | |
3742 | } | |
3743 | return nbytes; | |
3744 | ||
3745 | error_out: | |
3746 | /* Clean out command structure on command error out */ | |
3747 | memset(&idiag, 0, sizeof(idiag)); | |
3748 | return -EINVAL; | |
3749 | } | |
3750 | ||
b76f2dc9 JS |
3751 | /** |
3752 | * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers | |
3753 | * @phba: The pointer to hba structure. | |
3754 | * @pbuffer: The pointer to the buffer to copy the data to. | |
3755 | * @len: The lenght of bytes to copied. | |
3756 | * @drbregid: The id to doorbell registers. | |
3757 | * | |
3758 | * Description: | |
3759 | * This routine reads a control register and copies its content to the | |
3760 | * user buffer pointed to by @pbuffer. | |
3761 | * | |
3762 | * Returns: | |
3763 | * This function returns the amount of data that was copied into @pbuffer. | |
3764 | **/ | |
3765 | static int | |
3766 | lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, | |
3767 | int len, uint32_t ctlregid) | |
3768 | { | |
858c9f6c | 3769 | |
b76f2dc9 JS |
3770 | if (!pbuffer) |
3771 | return 0; | |
858c9f6c | 3772 | |
b76f2dc9 JS |
3773 | switch (ctlregid) { |
3774 | case LPFC_CTL_PORT_SEM: | |
3775 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
3776 | "Port SemReg: 0x%08x\n", | |
3777 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
3778 | LPFC_CTL_PORT_SEM_OFFSET)); | |
3779 | break; | |
3780 | case LPFC_CTL_PORT_STA: | |
3781 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
3782 | "Port StaReg: 0x%08x\n", | |
3783 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
3784 | LPFC_CTL_PORT_STA_OFFSET)); | |
3785 | break; | |
3786 | case LPFC_CTL_PORT_CTL: | |
3787 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
3788 | "Port CtlReg: 0x%08x\n", | |
3789 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
3790 | LPFC_CTL_PORT_CTL_OFFSET)); | |
3791 | break; | |
3792 | case LPFC_CTL_PORT_ER1: | |
3793 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
3794 | "Port Er1Reg: 0x%08x\n", | |
3795 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
3796 | LPFC_CTL_PORT_ER1_OFFSET)); | |
3797 | break; | |
3798 | case LPFC_CTL_PORT_ER2: | |
3799 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
3800 | "Port Er2Reg: 0x%08x\n", | |
3801 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
3802 | LPFC_CTL_PORT_ER2_OFFSET)); | |
3803 | break; | |
3804 | case LPFC_CTL_PDEV_CTL: | |
3805 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
3806 | "PDev CtlReg: 0x%08x\n", | |
3807 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
3808 | LPFC_CTL_PDEV_CTL_OFFSET)); | |
3809 | break; | |
3810 | default: | |
3811 | break; | |
3812 | } | |
3813 | return len; | |
3814 | } | |
78b2d852 | 3815 | |
b76f2dc9 JS |
3816 | /** |
3817 | * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register | |
3818 | * @file: The file pointer to read from. | |
3819 | * @buf: The buffer to copy the data to. | |
3820 | * @nbytes: The number of bytes to read. | |
3821 | * @ppos: The position in the file to start reading from. | |
3822 | * | |
3823 | * Description: | |
3824 | * This routine reads data from the @phba port and device registers according | |
3825 | * to the idiag command, and copies to user @buf. | |
3826 | * | |
3827 | * Returns: | |
3828 | * This function returns the amount of data that was read (this could be less | |
3829 | * than @nbytes if the end of the file was reached) or a negative error value. | |
3830 | **/ | |
3831 | static ssize_t | |
3832 | lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, | |
3833 | loff_t *ppos) | |
3834 | { | |
3835 | struct lpfc_debug *debug = file->private_data; | |
3836 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
3837 | uint32_t ctl_reg_id, i; | |
3838 | char *pbuffer; | |
3839 | int len = 0; | |
c95d6c6c | 3840 | |
b76f2dc9 JS |
3841 | /* This is a user read operation */ |
3842 | debug->op = LPFC_IDIAG_OP_RD; | |
a58cbd52 | 3843 | |
b76f2dc9 JS |
3844 | if (!debug->buffer) |
3845 | debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); | |
3846 | if (!debug->buffer) | |
3847 | return 0; | |
3848 | pbuffer = debug->buffer; | |
e2a0a9d6 | 3849 | |
b76f2dc9 JS |
3850 | if (*ppos) |
3851 | return 0; | |
3852 | ||
3853 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) | |
3854 | ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; | |
3855 | else | |
3856 | return 0; | |
3857 | ||
3858 | if (ctl_reg_id == LPFC_CTL_ACC_ALL) | |
3859 | for (i = 1; i <= LPFC_CTL_MAX; i++) | |
3860 | len = lpfc_idiag_ctlacc_read_reg(phba, | |
3861 | pbuffer, len, i); | |
3862 | else | |
3863 | len = lpfc_idiag_ctlacc_read_reg(phba, | |
3864 | pbuffer, len, ctl_reg_id); | |
3865 | ||
3866 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
3867 | } | |
3868 | ||
3869 | /** | |
3870 | * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands | |
3871 | * @file: The file pointer to read from. | |
3872 | * @buf: The buffer to copy the user data from. | |
3873 | * @nbytes: The number of bytes to get. | |
3874 | * @ppos: The position in the file to start reading from. | |
3875 | * | |
3876 | * This routine get the debugfs idiag command struct from user space and then | |
3877 | * perform the syntax check for port and device control register read (dump) | |
3878 | * or write (set) command accordingly. | |
3879 | * | |
3880 | * It returns the @nbytges passing in from debugfs user space when successful. | |
3881 | * In case of error conditions, it returns proper error code back to the user | |
3882 | * space. | |
3883 | **/ | |
3884 | static ssize_t | |
3885 | lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, | |
3886 | size_t nbytes, loff_t *ppos) | |
3887 | { | |
3888 | struct lpfc_debug *debug = file->private_data; | |
3889 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
3890 | uint32_t ctl_reg_id, value, reg_val = 0; | |
3891 | void __iomem *ctl_reg; | |
3892 | int rc; | |
3893 | ||
3894 | /* This is a user write operation */ | |
3895 | debug->op = LPFC_IDIAG_OP_WR; | |
3896 | ||
3897 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
3898 | if (rc < 0) | |
3899 | return rc; | |
3900 | ||
3901 | /* Sanity check on command line arguments */ | |
3902 | ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; | |
3903 | value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; | |
3904 | ||
3905 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || | |
3906 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || | |
3907 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { | |
3908 | if (rc != LPFC_CTL_ACC_WR_CMD_ARG) | |
3909 | goto error_out; | |
3910 | if (ctl_reg_id > LPFC_CTL_MAX) | |
3911 | goto error_out; | |
3912 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { | |
3913 | if (rc != LPFC_CTL_ACC_RD_CMD_ARG) | |
3914 | goto error_out; | |
3915 | if ((ctl_reg_id > LPFC_CTL_MAX) && | |
3916 | (ctl_reg_id != LPFC_CTL_ACC_ALL)) | |
3917 | goto error_out; | |
3918 | } else | |
3919 | goto error_out; | |
3920 | ||
3921 | /* Perform the write access operation */ | |
3922 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || | |
3923 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || | |
3924 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { | |
3925 | switch (ctl_reg_id) { | |
3926 | case LPFC_CTL_PORT_SEM: | |
3927 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3928 | LPFC_CTL_PORT_SEM_OFFSET; | |
3929 | break; | |
3930 | case LPFC_CTL_PORT_STA: | |
3931 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3932 | LPFC_CTL_PORT_STA_OFFSET; | |
3933 | break; | |
3934 | case LPFC_CTL_PORT_CTL: | |
3935 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3936 | LPFC_CTL_PORT_CTL_OFFSET; | |
3937 | break; | |
3938 | case LPFC_CTL_PORT_ER1: | |
3939 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3940 | LPFC_CTL_PORT_ER1_OFFSET; | |
3941 | break; | |
3942 | case LPFC_CTL_PORT_ER2: | |
3943 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3944 | LPFC_CTL_PORT_ER2_OFFSET; | |
3945 | break; | |
3946 | case LPFC_CTL_PDEV_CTL: | |
3947 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3948 | LPFC_CTL_PDEV_CTL_OFFSET; | |
3949 | break; | |
3950 | default: | |
3951 | goto error_out; | |
3952 | } | |
3953 | ||
3954 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) | |
3955 | reg_val = value; | |
3956 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { | |
3957 | reg_val = readl(ctl_reg); | |
3958 | reg_val |= value; | |
3959 | } | |
3960 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { | |
3961 | reg_val = readl(ctl_reg); | |
3962 | reg_val &= ~value; | |
3963 | } | |
3964 | writel(reg_val, ctl_reg); | |
3965 | readl(ctl_reg); /* flush */ | |
3966 | } | |
3967 | return nbytes; | |
3968 | ||
3969 | error_out: | |
3970 | /* Clean out command structure on command error out */ | |
3971 | memset(&idiag, 0, sizeof(idiag)); | |
3972 | return -EINVAL; | |
3973 | } | |
3974 | ||
3975 | /** | |
3976 | * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup | |
3977 | * @phba: Pointer to HBA context object. | |
3978 | * @pbuffer: Pointer to data buffer. | |
3979 | * | |
3980 | * Description: | |
3981 | * This routine gets the driver mailbox access debugfs setup information. | |
3982 | * | |
3983 | * Returns: | |
3984 | * This function returns the amount of data that was read (this could be less | |
3985 | * than @nbytes if the end of the file was reached) or a negative error value. | |
3986 | **/ | |
3987 | static int | |
3988 | lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) | |
3989 | { | |
3990 | uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; | |
3991 | int len = 0; | |
3992 | ||
3993 | mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
3994 | mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
3995 | mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
3996 | mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
3997 | ||
3998 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
3999 | "mbx_dump_map: 0x%08x\n", mbx_dump_map); | |
4000 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
4001 | "mbx_dump_cnt: %04d\n", mbx_dump_cnt); | |
4002 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
4003 | "mbx_word_cnt: %04d\n", mbx_word_cnt); | |
4004 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
4005 | "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); | |
4006 | ||
4007 | return len; | |
4008 | } | |
4009 | ||
4010 | /** | |
4011 | * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access | |
4012 | * @file: The file pointer to read from. | |
4013 | * @buf: The buffer to copy the data to. | |
4014 | * @nbytes: The number of bytes to read. | |
4015 | * @ppos: The position in the file to start reading from. | |
4016 | * | |
4017 | * Description: | |
4018 | * This routine reads data from the @phba driver mailbox access debugfs setup | |
4019 | * information. | |
4020 | * | |
4021 | * Returns: | |
4022 | * This function returns the amount of data that was read (this could be less | |
4023 | * than @nbytes if the end of the file was reached) or a negative error value. | |
4024 | **/ | |
4025 | static ssize_t | |
4026 | lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, | |
4027 | loff_t *ppos) | |
4028 | { | |
4029 | struct lpfc_debug *debug = file->private_data; | |
4030 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
4031 | char *pbuffer; | |
4032 | int len = 0; | |
4033 | ||
4034 | /* This is a user read operation */ | |
4035 | debug->op = LPFC_IDIAG_OP_RD; | |
4036 | ||
4037 | if (!debug->buffer) | |
4038 | debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); | |
4039 | if (!debug->buffer) | |
4040 | return 0; | |
4041 | pbuffer = debug->buffer; | |
4042 | ||
4043 | if (*ppos) | |
4044 | return 0; | |
4045 | ||
4046 | if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && | |
4047 | (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) | |
4048 | return 0; | |
4049 | ||
4050 | len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); | |
4051 | ||
4052 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
4053 | } | |
4054 | ||
4055 | /** | |
4056 | * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands | |
4057 | * @file: The file pointer to read from. | |
4058 | * @buf: The buffer to copy the user data from. | |
4059 | * @nbytes: The number of bytes to get. | |
4060 | * @ppos: The position in the file to start reading from. | |
4061 | * | |
4062 | * This routine get the debugfs idiag command struct from user space and then | |
4063 | * perform the syntax check for driver mailbox command (dump) and sets up the | |
4064 | * necessary states in the idiag command struct accordingly. | |
4065 | * | |
4066 | * It returns the @nbytges passing in from debugfs user space when successful. | |
4067 | * In case of error conditions, it returns proper error code back to the user | |
4068 | * space. | |
4069 | **/ | |
4070 | static ssize_t | |
4071 | lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, | |
4072 | size_t nbytes, loff_t *ppos) | |
4073 | { | |
4074 | struct lpfc_debug *debug = file->private_data; | |
4075 | uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; | |
4076 | int rc; | |
4077 | ||
4078 | /* This is a user write operation */ | |
4079 | debug->op = LPFC_IDIAG_OP_WR; | |
4080 | ||
4081 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
4082 | if (rc < 0) | |
4083 | return rc; | |
4084 | ||
4085 | /* Sanity check on command line arguments */ | |
4086 | mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
4087 | mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
4088 | mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
4089 | mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
4090 | ||
4091 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { | |
4092 | if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) | |
4093 | goto error_out; | |
4094 | if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && | |
4095 | (mbx_dump_map != LPFC_MBX_DMP_ALL)) | |
4096 | goto error_out; | |
4097 | if (mbx_word_cnt > sizeof(MAILBOX_t)) | |
4098 | goto error_out; | |
4099 | } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { | |
4100 | if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) | |
4101 | goto error_out; | |
4102 | if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && | |
4103 | (mbx_dump_map != LPFC_MBX_DMP_ALL)) | |
4104 | goto error_out; | |
4105 | if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) | |
4106 | goto error_out; | |
4107 | if (mbx_mbox_cmd != 0x9b) | |
4108 | goto error_out; | |
4109 | } else | |
4110 | goto error_out; | |
4111 | ||
4112 | if (mbx_word_cnt == 0) | |
4113 | goto error_out; | |
4114 | if (rc != LPFC_MBX_DMP_ARG) | |
4115 | goto error_out; | |
4116 | if (mbx_mbox_cmd & ~0xff) | |
4117 | goto error_out; | |
4118 | ||
4119 | /* condition for stop mailbox dump */ | |
4120 | if (mbx_dump_cnt == 0) | |
4121 | goto reset_out; | |
4122 | ||
4123 | return nbytes; | |
4124 | ||
4125 | reset_out: | |
4126 | /* Clean out command structure on command error out */ | |
4127 | memset(&idiag, 0, sizeof(idiag)); | |
4128 | return nbytes; | |
4129 | ||
4130 | error_out: | |
4131 | /* Clean out command structure on command error out */ | |
4132 | memset(&idiag, 0, sizeof(idiag)); | |
4133 | return -EINVAL; | |
4134 | } | |
4135 | ||
4136 | /** | |
4137 | * lpfc_idiag_extacc_avail_get - get the available extents information | |
4138 | * @phba: pointer to lpfc hba data structure. | |
4139 | * @pbuffer: pointer to internal buffer. | |
4140 | * @len: length into the internal buffer data has been copied. | |
4141 | * | |
4142 | * Description: | |
4143 | * This routine is to get the available extent information. | |
4144 | * | |
4145 | * Returns: | |
4146 | * overall lenth of the data read into the internal buffer. | |
4147 | **/ | |
4148 | static int | |
4149 | lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) | |
4150 | { | |
4151 | uint16_t ext_cnt, ext_size; | |
4152 | ||
4153 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4154 | "\nAvailable Extents Information:\n"); | |
4155 | ||
4156 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4157 | "\tPort Available VPI extents: "); | |
4158 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, | |
4159 | &ext_cnt, &ext_size); | |
4160 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4161 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
4162 | ||
4163 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4164 | "\tPort Available VFI extents: "); | |
4165 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, | |
4166 | &ext_cnt, &ext_size); | |
4167 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4168 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
4169 | ||
4170 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4171 | "\tPort Available RPI extents: "); | |
4172 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, | |
4173 | &ext_cnt, &ext_size); | |
4174 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4175 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
4176 | ||
4177 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4178 | "\tPort Available XRI extents: "); | |
4179 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, | |
4180 | &ext_cnt, &ext_size); | |
4181 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4182 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
4183 | ||
4184 | return len; | |
4185 | } | |
4186 | ||
4187 | /** | |
4188 | * lpfc_idiag_extacc_alloc_get - get the allocated extents information | |
4189 | * @phba: pointer to lpfc hba data structure. | |
4190 | * @pbuffer: pointer to internal buffer. | |
4191 | * @len: length into the internal buffer data has been copied. | |
4192 | * | |
4193 | * Description: | |
4194 | * This routine is to get the allocated extent information. | |
4195 | * | |
4196 | * Returns: | |
4197 | * overall lenth of the data read into the internal buffer. | |
4198 | **/ | |
4199 | static int | |
4200 | lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) | |
4201 | { | |
4202 | uint16_t ext_cnt, ext_size; | |
4203 | int rc; | |
4204 | ||
4205 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4206 | "\nAllocated Extents Information:\n"); | |
4207 | ||
4208 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4209 | "\tHost Allocated VPI extents: "); | |
4210 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, | |
4211 | &ext_cnt, &ext_size); | |
4212 | if (!rc) | |
4213 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4214 | "Port %d Extent %3d, Size %3d\n", | |
4215 | phba->brd_no, ext_cnt, ext_size); | |
4216 | else | |
4217 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4218 | "N/A\n"); | |
4219 | ||
4220 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4221 | "\tHost Allocated VFI extents: "); | |
4222 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, | |
4223 | &ext_cnt, &ext_size); | |
4224 | if (!rc) | |
4225 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4226 | "Port %d Extent %3d, Size %3d\n", | |
4227 | phba->brd_no, ext_cnt, ext_size); | |
4228 | else | |
4229 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4230 | "N/A\n"); | |
4231 | ||
4232 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4233 | "\tHost Allocated RPI extents: "); | |
4234 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, | |
4235 | &ext_cnt, &ext_size); | |
4236 | if (!rc) | |
4237 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4238 | "Port %d Extent %3d, Size %3d\n", | |
4239 | phba->brd_no, ext_cnt, ext_size); | |
4240 | else | |
4241 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4242 | "N/A\n"); | |
4243 | ||
4244 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4245 | "\tHost Allocated XRI extents: "); | |
4246 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, | |
4247 | &ext_cnt, &ext_size); | |
4248 | if (!rc) | |
4249 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4250 | "Port %d Extent %3d, Size %3d\n", | |
4251 | phba->brd_no, ext_cnt, ext_size); | |
4252 | else | |
4253 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4254 | "N/A\n"); | |
4255 | ||
4256 | return len; | |
4257 | } | |
4258 | ||
4259 | /** | |
4260 | * lpfc_idiag_extacc_drivr_get - get driver extent information | |
4261 | * @phba: pointer to lpfc hba data structure. | |
4262 | * @pbuffer: pointer to internal buffer. | |
4263 | * @len: length into the internal buffer data has been copied. | |
4264 | * | |
4265 | * Description: | |
4266 | * This routine is to get the driver extent information. | |
4267 | * | |
4268 | * Returns: | |
4269 | * overall lenth of the data read into the internal buffer. | |
4270 | **/ | |
4271 | static int | |
4272 | lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) | |
4273 | { | |
4274 | struct lpfc_rsrc_blks *rsrc_blks; | |
4275 | int index; | |
4276 | ||
4277 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4278 | "\nDriver Extents Information:\n"); | |
4279 | ||
4280 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4281 | "\tVPI extents:\n"); | |
4282 | index = 0; | |
4283 | list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { | |
4284 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4285 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
4286 | index, rsrc_blks->rsrc_start, | |
4287 | rsrc_blks->rsrc_size); | |
4288 | index++; | |
4289 | } | |
4290 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4291 | "\tVFI extents:\n"); | |
4292 | index = 0; | |
4293 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, | |
4294 | list) { | |
4295 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4296 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
4297 | index, rsrc_blks->rsrc_start, | |
4298 | rsrc_blks->rsrc_size); | |
4299 | index++; | |
4300 | } | |
4301 | ||
4302 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4303 | "\tRPI extents:\n"); | |
4304 | index = 0; | |
4305 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, | |
4306 | list) { | |
4307 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4308 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
4309 | index, rsrc_blks->rsrc_start, | |
4310 | rsrc_blks->rsrc_size); | |
4311 | index++; | |
4312 | } | |
4313 | ||
4314 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4315 | "\tXRI extents:\n"); | |
4316 | index = 0; | |
4317 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, | |
4318 | list) { | |
4319 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
4320 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
4321 | index, rsrc_blks->rsrc_start, | |
4322 | rsrc_blks->rsrc_size); | |
4323 | index++; | |
4324 | } | |
4325 | ||
4326 | return len; | |
4327 | } | |
4328 | ||
4329 | /** | |
4330 | * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands | |
4331 | * @file: The file pointer to read from. | |
4332 | * @buf: The buffer to copy the user data from. | |
4333 | * @nbytes: The number of bytes to get. | |
4334 | * @ppos: The position in the file to start reading from. | |
4335 | * | |
4336 | * This routine get the debugfs idiag command struct from user space and then | |
4337 | * perform the syntax check for extent information access commands and sets | |
4338 | * up the necessary states in the idiag command struct accordingly. | |
4339 | * | |
4340 | * It returns the @nbytges passing in from debugfs user space when successful. | |
4341 | * In case of error conditions, it returns proper error code back to the user | |
4342 | * space. | |
4343 | **/ | |
4344 | static ssize_t | |
4345 | lpfc_idiag_extacc_write(struct file *file, const char __user *buf, | |
4346 | size_t nbytes, loff_t *ppos) | |
4347 | { | |
4348 | struct lpfc_debug *debug = file->private_data; | |
4349 | uint32_t ext_map; | |
4350 | int rc; | |
4351 | ||
4352 | /* This is a user write operation */ | |
4353 | debug->op = LPFC_IDIAG_OP_WR; | |
4354 | ||
4355 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
4356 | if (rc < 0) | |
4357 | return rc; | |
4358 | ||
4359 | ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; | |
4360 | ||
4361 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) | |
4362 | goto error_out; | |
4363 | if (rc != LPFC_EXT_ACC_CMD_ARG) | |
4364 | goto error_out; | |
4365 | if (!(ext_map & LPFC_EXT_ACC_ALL)) | |
4366 | goto error_out; | |
4367 | ||
4368 | return nbytes; | |
4369 | error_out: | |
4370 | /* Clean out command structure on command error out */ | |
4371 | memset(&idiag, 0, sizeof(idiag)); | |
4372 | return -EINVAL; | |
4373 | } | |
4374 | ||
4375 | /** | |
4376 | * lpfc_idiag_extacc_read - idiag debugfs read access to extent information | |
4377 | * @file: The file pointer to read from. | |
4378 | * @buf: The buffer to copy the data to. | |
4379 | * @nbytes: The number of bytes to read. | |
4380 | * @ppos: The position in the file to start reading from. | |
4381 | * | |
4382 | * Description: | |
4383 | * This routine reads data from the proper extent information according to | |
4384 | * the idiag command, and copies to user @buf. | |
4385 | * | |
4386 | * Returns: | |
4387 | * This function returns the amount of data that was read (this could be less | |
4388 | * than @nbytes if the end of the file was reached) or a negative error value. | |
4389 | **/ | |
4390 | static ssize_t | |
4391 | lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, | |
4392 | loff_t *ppos) | |
4393 | { | |
4394 | struct lpfc_debug *debug = file->private_data; | |
4395 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
4396 | char *pbuffer; | |
4397 | uint32_t ext_map; | |
4398 | int len = 0; | |
4399 | ||
4400 | /* This is a user read operation */ | |
4401 | debug->op = LPFC_IDIAG_OP_RD; | |
4402 | ||
4403 | if (!debug->buffer) | |
4404 | debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); | |
4405 | if (!debug->buffer) | |
4406 | return 0; | |
4407 | pbuffer = debug->buffer; | |
4408 | if (*ppos) | |
4409 | return 0; | |
4410 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) | |
4411 | return 0; | |
4412 | ||
4413 | ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; | |
4414 | if (ext_map & LPFC_EXT_ACC_AVAIL) | |
4415 | len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); | |
4416 | if (ext_map & LPFC_EXT_ACC_ALLOC) | |
4417 | len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); | |
4418 | if (ext_map & LPFC_EXT_ACC_DRIVR) | |
4419 | len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); | |
4420 | ||
4421 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
4422 | } | |
4423 | ||
4424 | #undef lpfc_debugfs_op_disc_trc | |
4425 | static const struct file_operations lpfc_debugfs_op_disc_trc = { | |
4426 | .owner = THIS_MODULE, | |
4427 | .open = lpfc_debugfs_disc_trc_open, | |
4428 | .llseek = lpfc_debugfs_lseek, | |
4429 | .read = lpfc_debugfs_read, | |
4430 | .release = lpfc_debugfs_release, | |
4431 | }; | |
4432 | ||
4433 | #undef lpfc_debugfs_op_nodelist | |
4434 | static const struct file_operations lpfc_debugfs_op_nodelist = { | |
4435 | .owner = THIS_MODULE, | |
4436 | .open = lpfc_debugfs_nodelist_open, | |
4437 | .llseek = lpfc_debugfs_lseek, | |
4438 | .read = lpfc_debugfs_read, | |
4439 | .release = lpfc_debugfs_release, | |
4440 | }; | |
4441 | ||
4442 | #undef lpfc_debugfs_op_hbqinfo | |
4443 | static const struct file_operations lpfc_debugfs_op_hbqinfo = { | |
4444 | .owner = THIS_MODULE, | |
4445 | .open = lpfc_debugfs_hbqinfo_open, | |
4446 | .llseek = lpfc_debugfs_lseek, | |
4447 | .read = lpfc_debugfs_read, | |
4448 | .release = lpfc_debugfs_release, | |
4449 | }; | |
4450 | ||
4451 | #undef lpfc_debugfs_op_dumpHBASlim | |
4452 | static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { | |
4453 | .owner = THIS_MODULE, | |
4454 | .open = lpfc_debugfs_dumpHBASlim_open, | |
4455 | .llseek = lpfc_debugfs_lseek, | |
4456 | .read = lpfc_debugfs_read, | |
4457 | .release = lpfc_debugfs_release, | |
4458 | }; | |
4459 | ||
4460 | #undef lpfc_debugfs_op_dumpHostSlim | |
4461 | static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { | |
4462 | .owner = THIS_MODULE, | |
4463 | .open = lpfc_debugfs_dumpHostSlim_open, | |
4464 | .llseek = lpfc_debugfs_lseek, | |
4465 | .read = lpfc_debugfs_read, | |
4466 | .release = lpfc_debugfs_release, | |
4467 | }; | |
4468 | ||
bd2cdd5e JS |
4469 | #undef lpfc_debugfs_op_nvmestat |
4470 | static const struct file_operations lpfc_debugfs_op_nvmestat = { | |
4471 | .owner = THIS_MODULE, | |
4472 | .open = lpfc_debugfs_nvmestat_open, | |
4473 | .llseek = lpfc_debugfs_lseek, | |
4474 | .read = lpfc_debugfs_read, | |
4475 | .release = lpfc_debugfs_release, | |
4476 | }; | |
4477 | ||
4478 | #undef lpfc_debugfs_op_nvmektime | |
4479 | static const struct file_operations lpfc_debugfs_op_nvmektime = { | |
4480 | .owner = THIS_MODULE, | |
4481 | .open = lpfc_debugfs_nvmektime_open, | |
4482 | .llseek = lpfc_debugfs_lseek, | |
4483 | .read = lpfc_debugfs_read, | |
4484 | .write = lpfc_debugfs_nvmektime_write, | |
4485 | .release = lpfc_debugfs_release, | |
4486 | }; | |
4487 | ||
4488 | #undef lpfc_debugfs_op_nvmeio_trc | |
4489 | static const struct file_operations lpfc_debugfs_op_nvmeio_trc = { | |
4490 | .owner = THIS_MODULE, | |
4491 | .open = lpfc_debugfs_nvmeio_trc_open, | |
4492 | .llseek = lpfc_debugfs_lseek, | |
4493 | .read = lpfc_debugfs_read, | |
4494 | .write = lpfc_debugfs_nvmeio_trc_write, | |
4495 | .release = lpfc_debugfs_release, | |
4496 | }; | |
4497 | ||
4498 | #undef lpfc_debugfs_op_cpucheck | |
4499 | static const struct file_operations lpfc_debugfs_op_cpucheck = { | |
4500 | .owner = THIS_MODULE, | |
4501 | .open = lpfc_debugfs_cpucheck_open, | |
4502 | .llseek = lpfc_debugfs_lseek, | |
4503 | .read = lpfc_debugfs_read, | |
4504 | .write = lpfc_debugfs_cpucheck_write, | |
4505 | .release = lpfc_debugfs_release, | |
4506 | }; | |
4507 | ||
b76f2dc9 JS |
4508 | #undef lpfc_debugfs_op_dumpData |
4509 | static const struct file_operations lpfc_debugfs_op_dumpData = { | |
4510 | .owner = THIS_MODULE, | |
4511 | .open = lpfc_debugfs_dumpData_open, | |
4512 | .llseek = lpfc_debugfs_lseek, | |
4513 | .read = lpfc_debugfs_read, | |
4514 | .write = lpfc_debugfs_dumpDataDif_write, | |
4515 | .release = lpfc_debugfs_dumpDataDif_release, | |
4516 | }; | |
4517 | ||
4518 | #undef lpfc_debugfs_op_dumpDif | |
4519 | static const struct file_operations lpfc_debugfs_op_dumpDif = { | |
e2a0a9d6 JS |
4520 | .owner = THIS_MODULE, |
4521 | .open = lpfc_debugfs_dumpDif_open, | |
4522 | .llseek = lpfc_debugfs_lseek, | |
4523 | .read = lpfc_debugfs_read, | |
4524 | .write = lpfc_debugfs_dumpDataDif_write, | |
4525 | .release = lpfc_debugfs_dumpDataDif_release, | |
4526 | }; | |
4527 | ||
f9bb2da1 JS |
4528 | #undef lpfc_debugfs_op_dif_err |
4529 | static const struct file_operations lpfc_debugfs_op_dif_err = { | |
4530 | .owner = THIS_MODULE, | |
234e3405 | 4531 | .open = simple_open, |
f9bb2da1 JS |
4532 | .llseek = lpfc_debugfs_lseek, |
4533 | .read = lpfc_debugfs_dif_err_read, | |
4534 | .write = lpfc_debugfs_dif_err_write, | |
4535 | .release = lpfc_debugfs_dif_err_release, | |
4536 | }; | |
4537 | ||
a58cbd52 | 4538 | #undef lpfc_debugfs_op_slow_ring_trc |
71fa7421 | 4539 | static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { |
a58cbd52 JS |
4540 | .owner = THIS_MODULE, |
4541 | .open = lpfc_debugfs_slow_ring_trc_open, | |
4542 | .llseek = lpfc_debugfs_lseek, | |
4543 | .read = lpfc_debugfs_read, | |
4544 | .release = lpfc_debugfs_release, | |
4545 | }; | |
4546 | ||
858c9f6c JS |
4547 | static struct dentry *lpfc_debugfs_root = NULL; |
4548 | static atomic_t lpfc_debugfs_hba_count; | |
2a622bfb JS |
4549 | |
4550 | /* | |
4551 | * File operations for the iDiag debugfs | |
4552 | */ | |
4553 | #undef lpfc_idiag_op_pciCfg | |
4554 | static const struct file_operations lpfc_idiag_op_pciCfg = { | |
4555 | .owner = THIS_MODULE, | |
4556 | .open = lpfc_idiag_open, | |
4557 | .llseek = lpfc_debugfs_lseek, | |
4558 | .read = lpfc_idiag_pcicfg_read, | |
4559 | .write = lpfc_idiag_pcicfg_write, | |
4560 | .release = lpfc_idiag_cmd_release, | |
4561 | }; | |
4562 | ||
b76f2dc9 JS |
4563 | #undef lpfc_idiag_op_barAcc |
4564 | static const struct file_operations lpfc_idiag_op_barAcc = { | |
4565 | .owner = THIS_MODULE, | |
4566 | .open = lpfc_idiag_open, | |
4567 | .llseek = lpfc_debugfs_lseek, | |
4568 | .read = lpfc_idiag_baracc_read, | |
4569 | .write = lpfc_idiag_baracc_write, | |
4570 | .release = lpfc_idiag_cmd_release, | |
4571 | }; | |
4572 | ||
2a622bfb JS |
4573 | #undef lpfc_idiag_op_queInfo |
4574 | static const struct file_operations lpfc_idiag_op_queInfo = { | |
4575 | .owner = THIS_MODULE, | |
4576 | .open = lpfc_idiag_open, | |
4577 | .read = lpfc_idiag_queinfo_read, | |
4578 | .release = lpfc_idiag_release, | |
4579 | }; | |
4580 | ||
b76f2dc9 | 4581 | #undef lpfc_idiag_op_queAcc |
86a80846 JS |
4582 | static const struct file_operations lpfc_idiag_op_queAcc = { |
4583 | .owner = THIS_MODULE, | |
4584 | .open = lpfc_idiag_open, | |
4585 | .llseek = lpfc_debugfs_lseek, | |
4586 | .read = lpfc_idiag_queacc_read, | |
4587 | .write = lpfc_idiag_queacc_write, | |
4588 | .release = lpfc_idiag_cmd_release, | |
4589 | }; | |
4590 | ||
b76f2dc9 | 4591 | #undef lpfc_idiag_op_drbAcc |
86a80846 JS |
4592 | static const struct file_operations lpfc_idiag_op_drbAcc = { |
4593 | .owner = THIS_MODULE, | |
4594 | .open = lpfc_idiag_open, | |
4595 | .llseek = lpfc_debugfs_lseek, | |
4596 | .read = lpfc_idiag_drbacc_read, | |
4597 | .write = lpfc_idiag_drbacc_write, | |
4598 | .release = lpfc_idiag_cmd_release, | |
4599 | }; | |
4600 | ||
b76f2dc9 JS |
4601 | #undef lpfc_idiag_op_ctlAcc |
4602 | static const struct file_operations lpfc_idiag_op_ctlAcc = { | |
4603 | .owner = THIS_MODULE, | |
4604 | .open = lpfc_idiag_open, | |
4605 | .llseek = lpfc_debugfs_lseek, | |
4606 | .read = lpfc_idiag_ctlacc_read, | |
4607 | .write = lpfc_idiag_ctlacc_write, | |
4608 | .release = lpfc_idiag_cmd_release, | |
4609 | }; | |
4610 | ||
4611 | #undef lpfc_idiag_op_mbxAcc | |
4612 | static const struct file_operations lpfc_idiag_op_mbxAcc = { | |
4613 | .owner = THIS_MODULE, | |
4614 | .open = lpfc_idiag_open, | |
4615 | .llseek = lpfc_debugfs_lseek, | |
4616 | .read = lpfc_idiag_mbxacc_read, | |
4617 | .write = lpfc_idiag_mbxacc_write, | |
4618 | .release = lpfc_idiag_cmd_release, | |
4619 | }; | |
4620 | ||
4621 | #undef lpfc_idiag_op_extAcc | |
4622 | static const struct file_operations lpfc_idiag_op_extAcc = { | |
4623 | .owner = THIS_MODULE, | |
4624 | .open = lpfc_idiag_open, | |
4625 | .llseek = lpfc_debugfs_lseek, | |
4626 | .read = lpfc_idiag_extacc_read, | |
4627 | .write = lpfc_idiag_extacc_write, | |
4628 | .release = lpfc_idiag_cmd_release, | |
4629 | }; | |
4630 | ||
858c9f6c JS |
4631 | #endif |
4632 | ||
b76f2dc9 JS |
4633 | /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command |
4634 | * @phba: Pointer to HBA context object. | |
4635 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
4636 | * | |
4637 | * Description: | |
4638 | * This routine dump a bsg pass-through non-embedded mailbox command with | |
4639 | * external buffer. | |
4640 | **/ | |
4641 | void | |
4642 | lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, | |
4643 | enum mbox_type mbox_tp, enum dma_type dma_tp, | |
4644 | enum sta_type sta_tp, | |
4645 | struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) | |
4646 | { | |
4647 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4648 | uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; | |
4649 | char line_buf[LPFC_MBX_ACC_LBUF_SZ]; | |
4650 | int len = 0; | |
4651 | uint32_t do_dump = 0; | |
4652 | uint32_t *pword; | |
4653 | uint32_t i; | |
4654 | ||
4655 | if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) | |
4656 | return; | |
4657 | ||
4658 | mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
4659 | mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
4660 | mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
4661 | mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
4662 | ||
4663 | if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || | |
4664 | (*mbx_dump_cnt == 0) || | |
4665 | (*mbx_word_cnt == 0)) | |
4666 | return; | |
4667 | ||
4668 | if (*mbx_mbox_cmd != 0x9B) | |
4669 | return; | |
4670 | ||
4671 | if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { | |
4672 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { | |
4673 | do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; | |
2ea259ee | 4674 | pr_err("\nRead mbox command (x%x), " |
b76f2dc9 JS |
4675 | "nemb:0x%x, extbuf_cnt:%d:\n", |
4676 | sta_tp, nemb_tp, ext_buf); | |
4677 | } | |
4678 | } | |
4679 | if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { | |
4680 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { | |
4681 | do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; | |
2ea259ee | 4682 | pr_err("\nRead mbox buffer (x%x), " |
b76f2dc9 JS |
4683 | "nemb:0x%x, extbuf_seq:%d:\n", |
4684 | sta_tp, nemb_tp, ext_buf); | |
4685 | } | |
4686 | } | |
4687 | if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { | |
4688 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { | |
4689 | do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; | |
2ea259ee | 4690 | pr_err("\nWrite mbox command (x%x), " |
b76f2dc9 JS |
4691 | "nemb:0x%x, extbuf_cnt:%d:\n", |
4692 | sta_tp, nemb_tp, ext_buf); | |
4693 | } | |
4694 | } | |
4695 | if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { | |
4696 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { | |
4697 | do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; | |
2ea259ee | 4698 | pr_err("\nWrite mbox buffer (x%x), " |
b76f2dc9 JS |
4699 | "nemb:0x%x, extbuf_seq:%d:\n", |
4700 | sta_tp, nemb_tp, ext_buf); | |
4701 | } | |
4702 | } | |
4703 | ||
4704 | /* dump buffer content */ | |
4705 | if (do_dump) { | |
4706 | pword = (uint32_t *)dmabuf->virt; | |
4707 | for (i = 0; i < *mbx_word_cnt; i++) { | |
4708 | if (!(i % 8)) { | |
4709 | if (i != 0) | |
2ea259ee | 4710 | pr_err("%s\n", line_buf); |
b76f2dc9 JS |
4711 | len = 0; |
4712 | len += snprintf(line_buf+len, | |
4713 | LPFC_MBX_ACC_LBUF_SZ-len, | |
4714 | "%03d: ", i); | |
4715 | } | |
4716 | len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, | |
4717 | "%08x ", (uint32_t)*pword); | |
4718 | pword++; | |
4719 | } | |
4720 | if ((i - 1) % 8) | |
2ea259ee | 4721 | pr_err("%s\n", line_buf); |
b76f2dc9 JS |
4722 | (*mbx_dump_cnt)--; |
4723 | } | |
4724 | ||
4725 | /* Clean out command structure on reaching dump count */ | |
4726 | if (*mbx_dump_cnt == 0) | |
4727 | memset(&idiag, 0, sizeof(idiag)); | |
4728 | return; | |
4729 | #endif | |
4730 | } | |
4731 | ||
4732 | /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command | |
4733 | * @phba: Pointer to HBA context object. | |
4734 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
4735 | * | |
4736 | * Description: | |
4737 | * This routine dump a pass-through non-embedded mailbox command from issue | |
4738 | * mailbox command. | |
4739 | **/ | |
4740 | void | |
4741 | lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) | |
4742 | { | |
4743 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4744 | uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; | |
4745 | char line_buf[LPFC_MBX_ACC_LBUF_SZ]; | |
4746 | int len = 0; | |
4747 | uint32_t *pword; | |
4748 | uint8_t *pbyte; | |
4749 | uint32_t i, j; | |
4750 | ||
4751 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) | |
4752 | return; | |
4753 | ||
4754 | mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
4755 | mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
4756 | mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
4757 | mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
4758 | ||
4759 | if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || | |
4760 | (*mbx_dump_cnt == 0) || | |
4761 | (*mbx_word_cnt == 0)) | |
4762 | return; | |
4763 | ||
4764 | if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && | |
4765 | (*mbx_mbox_cmd != pmbox->mbxCommand)) | |
4766 | return; | |
4767 | ||
4768 | /* dump buffer content */ | |
4769 | if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { | |
2ea259ee | 4770 | pr_err("Mailbox command:0x%x dump by word:\n", |
b76f2dc9 JS |
4771 | pmbox->mbxCommand); |
4772 | pword = (uint32_t *)pmbox; | |
4773 | for (i = 0; i < *mbx_word_cnt; i++) { | |
4774 | if (!(i % 8)) { | |
4775 | if (i != 0) | |
2ea259ee | 4776 | pr_err("%s\n", line_buf); |
b76f2dc9 JS |
4777 | len = 0; |
4778 | memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); | |
4779 | len += snprintf(line_buf+len, | |
4780 | LPFC_MBX_ACC_LBUF_SZ-len, | |
4781 | "%03d: ", i); | |
4782 | } | |
4783 | len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, | |
4784 | "%08x ", | |
4785 | ((uint32_t)*pword) & 0xffffffff); | |
4786 | pword++; | |
4787 | } | |
4788 | if ((i - 1) % 8) | |
2ea259ee JS |
4789 | pr_err("%s\n", line_buf); |
4790 | pr_err("\n"); | |
b76f2dc9 JS |
4791 | } |
4792 | if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { | |
2ea259ee | 4793 | pr_err("Mailbox command:0x%x dump by byte:\n", |
b76f2dc9 JS |
4794 | pmbox->mbxCommand); |
4795 | pbyte = (uint8_t *)pmbox; | |
4796 | for (i = 0; i < *mbx_word_cnt; i++) { | |
4797 | if (!(i % 8)) { | |
4798 | if (i != 0) | |
2ea259ee | 4799 | pr_err("%s\n", line_buf); |
b76f2dc9 JS |
4800 | len = 0; |
4801 | memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); | |
4802 | len += snprintf(line_buf+len, | |
4803 | LPFC_MBX_ACC_LBUF_SZ-len, | |
4804 | "%03d: ", i); | |
4805 | } | |
4806 | for (j = 0; j < 4; j++) { | |
4807 | len += snprintf(line_buf+len, | |
4808 | LPFC_MBX_ACC_LBUF_SZ-len, | |
4809 | "%02x", | |
4810 | ((uint8_t)*pbyte) & 0xff); | |
4811 | pbyte++; | |
4812 | } | |
4813 | len += snprintf(line_buf+len, | |
4814 | LPFC_MBX_ACC_LBUF_SZ-len, " "); | |
4815 | } | |
4816 | if ((i - 1) % 8) | |
2ea259ee JS |
4817 | pr_err("%s\n", line_buf); |
4818 | pr_err("\n"); | |
b76f2dc9 JS |
4819 | } |
4820 | (*mbx_dump_cnt)--; | |
4821 | ||
4822 | /* Clean out command structure on reaching dump count */ | |
4823 | if (*mbx_dump_cnt == 0) | |
4824 | memset(&idiag, 0, sizeof(idiag)); | |
4825 | return; | |
4826 | #endif | |
4827 | } | |
4828 | ||
e59058c4 | 4829 | /** |
3621a710 | 4830 | * lpfc_debugfs_initialize - Initialize debugfs for a vport |
e59058c4 JS |
4831 | * @vport: The vport pointer to initialize. |
4832 | * | |
4833 | * Description: | |
4834 | * When Debugfs is configured this routine sets up the lpfc debugfs file system. | |
4835 | * If not already created, this routine will create the lpfc directory, and | |
4836 | * lpfcX directory (for this HBA), and vportX directory for this vport. It will | |
4837 | * also create each file used to access lpfc specific debugfs information. | |
4838 | **/ | |
858c9f6c JS |
4839 | inline void |
4840 | lpfc_debugfs_initialize(struct lpfc_vport *vport) | |
4841 | { | |
923e4b6a | 4842 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
858c9f6c JS |
4843 | struct lpfc_hba *phba = vport->phba; |
4844 | char name[64]; | |
4845 | uint32_t num, i; | |
f6c3bdfb | 4846 | bool pport_setup = false; |
858c9f6c JS |
4847 | |
4848 | if (!lpfc_debugfs_enable) | |
4849 | return; | |
4850 | ||
a58cbd52 | 4851 | /* Setup lpfc root directory */ |
858c9f6c JS |
4852 | if (!lpfc_debugfs_root) { |
4853 | lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); | |
4854 | atomic_set(&lpfc_debugfs_hba_count, 0); | |
a58cbd52 | 4855 | if (!lpfc_debugfs_root) { |
e8b62011 | 4856 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 4857 | "0408 Cannot create debugfs root\n"); |
858c9f6c | 4858 | goto debug_failed; |
a58cbd52 | 4859 | } |
858c9f6c | 4860 | } |
a58cbd52 JS |
4861 | if (!lpfc_debugfs_start_time) |
4862 | lpfc_debugfs_start_time = jiffies; | |
4863 | ||
2a622bfb JS |
4864 | /* Setup funcX directory for specific HBA PCI function */ |
4865 | snprintf(name, sizeof(name), "fn%d", phba->brd_no); | |
858c9f6c | 4866 | if (!phba->hba_debugfs_root) { |
f6c3bdfb | 4867 | pport_setup = true; |
858c9f6c JS |
4868 | phba->hba_debugfs_root = |
4869 | debugfs_create_dir(name, lpfc_debugfs_root); | |
a58cbd52 | 4870 | if (!phba->hba_debugfs_root) { |
e8b62011 | 4871 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 4872 | "0412 Cannot create debugfs hba\n"); |
858c9f6c | 4873 | goto debug_failed; |
a58cbd52 | 4874 | } |
858c9f6c JS |
4875 | atomic_inc(&lpfc_debugfs_hba_count); |
4876 | atomic_set(&phba->debugfs_vport_count, 0); | |
a58cbd52 | 4877 | |
78b2d852 JS |
4878 | /* Setup hbqinfo */ |
4879 | snprintf(name, sizeof(name), "hbqinfo"); | |
4880 | phba->debug_hbqinfo = | |
4881 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4882 | phba->hba_debugfs_root, | |
4883 | phba, &lpfc_debugfs_op_hbqinfo); | |
4884 | if (!phba->debug_hbqinfo) { | |
4885 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
d7c255b2 | 4886 | "0411 Cannot create debugfs hbqinfo\n"); |
78b2d852 JS |
4887 | goto debug_failed; |
4888 | } | |
4889 | ||
c95d6c6c | 4890 | /* Setup dumpHBASlim */ |
2a622bfb JS |
4891 | if (phba->sli_rev < LPFC_SLI_REV4) { |
4892 | snprintf(name, sizeof(name), "dumpHBASlim"); | |
4893 | phba->debug_dumpHBASlim = | |
4894 | debugfs_create_file(name, | |
4895 | S_IFREG|S_IRUGO|S_IWUSR, | |
4896 | phba->hba_debugfs_root, | |
4897 | phba, &lpfc_debugfs_op_dumpHBASlim); | |
4898 | if (!phba->debug_dumpHBASlim) { | |
4899 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4900 | "0413 Cannot create debugfs " | |
4901 | "dumpHBASlim\n"); | |
4902 | goto debug_failed; | |
4903 | } | |
4904 | } else | |
4905 | phba->debug_dumpHBASlim = NULL; | |
c95d6c6c JS |
4906 | |
4907 | /* Setup dumpHostSlim */ | |
2a622bfb JS |
4908 | if (phba->sli_rev < LPFC_SLI_REV4) { |
4909 | snprintf(name, sizeof(name), "dumpHostSlim"); | |
4910 | phba->debug_dumpHostSlim = | |
4911 | debugfs_create_file(name, | |
4912 | S_IFREG|S_IRUGO|S_IWUSR, | |
4913 | phba->hba_debugfs_root, | |
4914 | phba, &lpfc_debugfs_op_dumpHostSlim); | |
4915 | if (!phba->debug_dumpHostSlim) { | |
4916 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4917 | "0414 Cannot create debugfs " | |
4918 | "dumpHostSlim\n"); | |
4919 | goto debug_failed; | |
4920 | } | |
4921 | } else | |
b28d108b | 4922 | phba->debug_dumpHostSlim = NULL; |
a58cbd52 | 4923 | |
e2a0a9d6 JS |
4924 | /* Setup dumpData */ |
4925 | snprintf(name, sizeof(name), "dumpData"); | |
4926 | phba->debug_dumpData = | |
4927 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4928 | phba->hba_debugfs_root, | |
4929 | phba, &lpfc_debugfs_op_dumpData); | |
4930 | if (!phba->debug_dumpData) { | |
4931 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4932 | "0800 Cannot create debugfs dumpData\n"); | |
4933 | goto debug_failed; | |
4934 | } | |
4935 | ||
4936 | /* Setup dumpDif */ | |
4937 | snprintf(name, sizeof(name), "dumpDif"); | |
4938 | phba->debug_dumpDif = | |
4939 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4940 | phba->hba_debugfs_root, | |
4941 | phba, &lpfc_debugfs_op_dumpDif); | |
4942 | if (!phba->debug_dumpDif) { | |
4943 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4944 | "0801 Cannot create debugfs dumpDif\n"); | |
4945 | goto debug_failed; | |
4946 | } | |
4947 | ||
f9bb2da1 JS |
4948 | /* Setup DIF Error Injections */ |
4949 | snprintf(name, sizeof(name), "InjErrLBA"); | |
4950 | phba->debug_InjErrLBA = | |
4951 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4952 | phba->hba_debugfs_root, | |
4953 | phba, &lpfc_debugfs_op_dif_err); | |
4954 | if (!phba->debug_InjErrLBA) { | |
4955 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4956 | "0807 Cannot create debugfs InjErrLBA\n"); | |
4957 | goto debug_failed; | |
4958 | } | |
4959 | phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; | |
4960 | ||
4ac9b226 JS |
4961 | snprintf(name, sizeof(name), "InjErrNPortID"); |
4962 | phba->debug_InjErrNPortID = | |
4963 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4964 | phba->hba_debugfs_root, | |
4965 | phba, &lpfc_debugfs_op_dif_err); | |
4966 | if (!phba->debug_InjErrNPortID) { | |
4967 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4968 | "0809 Cannot create debugfs InjErrNPortID\n"); | |
4969 | goto debug_failed; | |
4970 | } | |
4971 | ||
4972 | snprintf(name, sizeof(name), "InjErrWWPN"); | |
4973 | phba->debug_InjErrWWPN = | |
4974 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4975 | phba->hba_debugfs_root, | |
4976 | phba, &lpfc_debugfs_op_dif_err); | |
4977 | if (!phba->debug_InjErrWWPN) { | |
4978 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4979 | "0810 Cannot create debugfs InjErrWWPN\n"); | |
4980 | goto debug_failed; | |
4981 | } | |
4982 | ||
f9bb2da1 JS |
4983 | snprintf(name, sizeof(name), "writeGuardInjErr"); |
4984 | phba->debug_writeGuard = | |
4985 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4986 | phba->hba_debugfs_root, | |
4987 | phba, &lpfc_debugfs_op_dif_err); | |
4988 | if (!phba->debug_writeGuard) { | |
4989 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4990 | "0802 Cannot create debugfs writeGuard\n"); | |
4991 | goto debug_failed; | |
4992 | } | |
4993 | ||
4994 | snprintf(name, sizeof(name), "writeAppInjErr"); | |
4995 | phba->debug_writeApp = | |
4996 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4997 | phba->hba_debugfs_root, | |
4998 | phba, &lpfc_debugfs_op_dif_err); | |
4999 | if (!phba->debug_writeApp) { | |
5000 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5001 | "0803 Cannot create debugfs writeApp\n"); | |
5002 | goto debug_failed; | |
5003 | } | |
5004 | ||
5005 | snprintf(name, sizeof(name), "writeRefInjErr"); | |
5006 | phba->debug_writeRef = | |
5007 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5008 | phba->hba_debugfs_root, | |
5009 | phba, &lpfc_debugfs_op_dif_err); | |
5010 | if (!phba->debug_writeRef) { | |
5011 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5012 | "0804 Cannot create debugfs writeRef\n"); | |
5013 | goto debug_failed; | |
5014 | } | |
5015 | ||
acd6859b JS |
5016 | snprintf(name, sizeof(name), "readGuardInjErr"); |
5017 | phba->debug_readGuard = | |
5018 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5019 | phba->hba_debugfs_root, | |
5020 | phba, &lpfc_debugfs_op_dif_err); | |
5021 | if (!phba->debug_readGuard) { | |
5022 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5023 | "0808 Cannot create debugfs readGuard\n"); | |
5024 | goto debug_failed; | |
5025 | } | |
5026 | ||
f9bb2da1 JS |
5027 | snprintf(name, sizeof(name), "readAppInjErr"); |
5028 | phba->debug_readApp = | |
5029 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5030 | phba->hba_debugfs_root, | |
5031 | phba, &lpfc_debugfs_op_dif_err); | |
5032 | if (!phba->debug_readApp) { | |
5033 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5034 | "0805 Cannot create debugfs readApp\n"); | |
5035 | goto debug_failed; | |
5036 | } | |
5037 | ||
5038 | snprintf(name, sizeof(name), "readRefInjErr"); | |
5039 | phba->debug_readRef = | |
5040 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5041 | phba->hba_debugfs_root, | |
5042 | phba, &lpfc_debugfs_op_dif_err); | |
5043 | if (!phba->debug_readRef) { | |
5044 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5045 | "0806 Cannot create debugfs readApp\n"); | |
5046 | goto debug_failed; | |
5047 | } | |
5048 | ||
a58cbd52 JS |
5049 | /* Setup slow ring trace */ |
5050 | if (lpfc_debugfs_max_slow_ring_trc) { | |
5051 | num = lpfc_debugfs_max_slow_ring_trc - 1; | |
5052 | if (num & lpfc_debugfs_max_slow_ring_trc) { | |
5053 | /* Change to be a power of 2 */ | |
5054 | num = lpfc_debugfs_max_slow_ring_trc; | |
5055 | i = 0; | |
5056 | while (num > 1) { | |
5057 | num = num >> 1; | |
5058 | i++; | |
5059 | } | |
5060 | lpfc_debugfs_max_slow_ring_trc = (1 << i); | |
2ea259ee | 5061 | pr_err("lpfc_debugfs_max_disc_trc changed to " |
e8b62011 | 5062 | "%d\n", lpfc_debugfs_max_disc_trc); |
a58cbd52 JS |
5063 | } |
5064 | } | |
5065 | ||
a58cbd52 JS |
5066 | snprintf(name, sizeof(name), "slow_ring_trace"); |
5067 | phba->debug_slow_ring_trc = | |
5068 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5069 | phba->hba_debugfs_root, | |
5070 | phba, &lpfc_debugfs_op_slow_ring_trc); | |
5071 | if (!phba->debug_slow_ring_trc) { | |
e8b62011 | 5072 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 5073 | "0415 Cannot create debugfs " |
e8b62011 | 5074 | "slow_ring_trace\n"); |
a58cbd52 JS |
5075 | goto debug_failed; |
5076 | } | |
5077 | if (!phba->slow_ring_trc) { | |
5078 | phba->slow_ring_trc = kmalloc( | |
5079 | (sizeof(struct lpfc_debugfs_trc) * | |
5080 | lpfc_debugfs_max_slow_ring_trc), | |
5081 | GFP_KERNEL); | |
5082 | if (!phba->slow_ring_trc) { | |
e8b62011 | 5083 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 5084 | "0416 Cannot create debugfs " |
e8b62011 | 5085 | "slow_ring buffer\n"); |
a58cbd52 JS |
5086 | goto debug_failed; |
5087 | } | |
5088 | atomic_set(&phba->slow_ring_trc_cnt, 0); | |
5089 | memset(phba->slow_ring_trc, 0, | |
5090 | (sizeof(struct lpfc_debugfs_trc) * | |
5091 | lpfc_debugfs_max_slow_ring_trc)); | |
5092 | } | |
2ea259ee | 5093 | |
bd2cdd5e JS |
5094 | snprintf(name, sizeof(name), "nvmeio_trc"); |
5095 | phba->debug_nvmeio_trc = | |
5096 | debugfs_create_file(name, 0644, | |
5097 | phba->hba_debugfs_root, | |
5098 | phba, &lpfc_debugfs_op_nvmeio_trc); | |
5099 | if (!phba->debug_nvmeio_trc) { | |
5100 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5101 | "0574 No create debugfs nvmeio_trc\n"); | |
5102 | goto debug_failed; | |
5103 | } | |
5104 | ||
5105 | atomic_set(&phba->nvmeio_trc_cnt, 0); | |
5106 | if (lpfc_debugfs_max_nvmeio_trc) { | |
5107 | num = lpfc_debugfs_max_nvmeio_trc - 1; | |
5108 | if (num & lpfc_debugfs_max_disc_trc) { | |
5109 | /* Change to be a power of 2 */ | |
5110 | num = lpfc_debugfs_max_nvmeio_trc; | |
5111 | i = 0; | |
5112 | while (num > 1) { | |
5113 | num = num >> 1; | |
5114 | i++; | |
5115 | } | |
5116 | lpfc_debugfs_max_nvmeio_trc = (1 << i); | |
5117 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5118 | "0575 lpfc_debugfs_max_nvmeio_trc " | |
5119 | "changed to %d\n", | |
5120 | lpfc_debugfs_max_nvmeio_trc); | |
5121 | } | |
5122 | phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc; | |
5123 | ||
5124 | /* Allocate trace buffer and initialize */ | |
5125 | phba->nvmeio_trc = kmalloc( | |
5126 | (sizeof(struct lpfc_debugfs_nvmeio_trc) * | |
5127 | phba->nvmeio_trc_size), GFP_KERNEL); | |
5128 | ||
5129 | if (!phba->nvmeio_trc) { | |
5130 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5131 | "0576 Cannot create debugfs " | |
5132 | "nvmeio_trc buffer\n"); | |
5133 | goto nvmeio_off; | |
5134 | } | |
5135 | memset(phba->nvmeio_trc, 0, | |
5136 | (sizeof(struct lpfc_debugfs_nvmeio_trc) * | |
5137 | phba->nvmeio_trc_size)); | |
5138 | phba->nvmeio_trc_on = 1; | |
5139 | phba->nvmeio_trc_output_idx = 0; | |
5140 | phba->nvmeio_trc = NULL; | |
5141 | } else { | |
5142 | nvmeio_off: | |
5143 | phba->nvmeio_trc_size = 0; | |
5144 | phba->nvmeio_trc_on = 0; | |
5145 | phba->nvmeio_trc_output_idx = 0; | |
5146 | phba->nvmeio_trc = NULL; | |
5147 | } | |
858c9f6c JS |
5148 | } |
5149 | ||
5150 | snprintf(name, sizeof(name), "vport%d", vport->vpi); | |
5151 | if (!vport->vport_debugfs_root) { | |
5152 | vport->vport_debugfs_root = | |
5153 | debugfs_create_dir(name, phba->hba_debugfs_root); | |
a58cbd52 | 5154 | if (!vport->vport_debugfs_root) { |
e8b62011 | 5155 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
25985edc | 5156 | "0417 Can't create debugfs\n"); |
858c9f6c | 5157 | goto debug_failed; |
a58cbd52 | 5158 | } |
858c9f6c JS |
5159 | atomic_inc(&phba->debugfs_vport_count); |
5160 | } | |
5161 | ||
a58cbd52 JS |
5162 | if (lpfc_debugfs_max_disc_trc) { |
5163 | num = lpfc_debugfs_max_disc_trc - 1; | |
5164 | if (num & lpfc_debugfs_max_disc_trc) { | |
5165 | /* Change to be a power of 2 */ | |
5166 | num = lpfc_debugfs_max_disc_trc; | |
5167 | i = 0; | |
5168 | while (num > 1) { | |
5169 | num = num >> 1; | |
5170 | i++; | |
5171 | } | |
5172 | lpfc_debugfs_max_disc_trc = (1 << i); | |
2ea259ee | 5173 | pr_err("lpfc_debugfs_max_disc_trc changed to %d\n", |
e8b62011 | 5174 | lpfc_debugfs_max_disc_trc); |
a58cbd52 JS |
5175 | } |
5176 | } | |
858c9f6c | 5177 | |
ff86ba59 | 5178 | vport->disc_trc = kzalloc( |
a58cbd52 | 5179 | (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), |
858c9f6c JS |
5180 | GFP_KERNEL); |
5181 | ||
a58cbd52 | 5182 | if (!vport->disc_trc) { |
e8b62011 | 5183 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 5184 | "0418 Cannot create debugfs disc trace " |
e8b62011 | 5185 | "buffer\n"); |
858c9f6c | 5186 | goto debug_failed; |
a58cbd52 JS |
5187 | } |
5188 | atomic_set(&vport->disc_trc_cnt, 0); | |
858c9f6c JS |
5189 | |
5190 | snprintf(name, sizeof(name), "discovery_trace"); | |
5191 | vport->debug_disc_trc = | |
5192 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5193 | vport->vport_debugfs_root, | |
5194 | vport, &lpfc_debugfs_op_disc_trc); | |
5195 | if (!vport->debug_disc_trc) { | |
e8b62011 | 5196 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 5197 | "0419 Cannot create debugfs " |
e8b62011 | 5198 | "discovery_trace\n"); |
858c9f6c JS |
5199 | goto debug_failed; |
5200 | } | |
5201 | snprintf(name, sizeof(name), "nodelist"); | |
5202 | vport->debug_nodelist = | |
5203 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5204 | vport->vport_debugfs_root, | |
5205 | vport, &lpfc_debugfs_op_nodelist); | |
5206 | if (!vport->debug_nodelist) { | |
e8b62011 | 5207 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
b76f2dc9 | 5208 | "2985 Can't create debugfs nodelist\n"); |
858c9f6c JS |
5209 | goto debug_failed; |
5210 | } | |
2a622bfb | 5211 | |
bd2cdd5e JS |
5212 | snprintf(name, sizeof(name), "nvmestat"); |
5213 | vport->debug_nvmestat = | |
5214 | debugfs_create_file(name, 0644, | |
5215 | vport->vport_debugfs_root, | |
5216 | vport, &lpfc_debugfs_op_nvmestat); | |
5217 | if (!vport->debug_nvmestat) { | |
5218 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5219 | "0811 Cannot create debugfs nvmestat\n"); | |
5220 | goto debug_failed; | |
5221 | } | |
5222 | ||
5223 | snprintf(name, sizeof(name), "nvmektime"); | |
5224 | vport->debug_nvmektime = | |
5225 | debugfs_create_file(name, 0644, | |
5226 | vport->vport_debugfs_root, | |
5227 | vport, &lpfc_debugfs_op_nvmektime); | |
5228 | if (!vport->debug_nvmektime) { | |
5229 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5230 | "0815 Cannot create debugfs nvmektime\n"); | |
5231 | goto debug_failed; | |
5232 | } | |
5233 | ||
5234 | snprintf(name, sizeof(name), "cpucheck"); | |
5235 | vport->debug_cpucheck = | |
5236 | debugfs_create_file(name, 0644, | |
5237 | vport->vport_debugfs_root, | |
5238 | vport, &lpfc_debugfs_op_cpucheck); | |
5239 | if (!vport->debug_cpucheck) { | |
5240 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5241 | "0819 Cannot create debugfs cpucheck\n"); | |
5242 | goto debug_failed; | |
5243 | } | |
5244 | ||
f6c3bdfb JS |
5245 | /* |
5246 | * The following section is for additional directories/files for the | |
5247 | * physical port. | |
5248 | */ | |
5249 | ||
5250 | if (!pport_setup) | |
5251 | goto debug_failed; | |
5252 | ||
2a622bfb JS |
5253 | /* |
5254 | * iDiag debugfs root entry points for SLI4 device only | |
5255 | */ | |
5256 | if (phba->sli_rev < LPFC_SLI_REV4) | |
5257 | goto debug_failed; | |
5258 | ||
5259 | snprintf(name, sizeof(name), "iDiag"); | |
5260 | if (!phba->idiag_root) { | |
5261 | phba->idiag_root = | |
5262 | debugfs_create_dir(name, phba->hba_debugfs_root); | |
5263 | if (!phba->idiag_root) { | |
5264 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5265 | "2922 Can't create idiag debugfs\n"); | |
5266 | goto debug_failed; | |
5267 | } | |
5268 | /* Initialize iDiag data structure */ | |
5269 | memset(&idiag, 0, sizeof(idiag)); | |
5270 | } | |
5271 | ||
5272 | /* iDiag read PCI config space */ | |
5273 | snprintf(name, sizeof(name), "pciCfg"); | |
5274 | if (!phba->idiag_pci_cfg) { | |
5275 | phba->idiag_pci_cfg = | |
5276 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5277 | phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); | |
5278 | if (!phba->idiag_pci_cfg) { | |
5279 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5280 | "2923 Can't create idiag debugfs\n"); | |
5281 | goto debug_failed; | |
5282 | } | |
5283 | idiag.offset.last_rd = 0; | |
5284 | } | |
5285 | ||
b76f2dc9 JS |
5286 | /* iDiag PCI BAR access */ |
5287 | snprintf(name, sizeof(name), "barAcc"); | |
5288 | if (!phba->idiag_bar_acc) { | |
5289 | phba->idiag_bar_acc = | |
5290 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5291 | phba->idiag_root, phba, &lpfc_idiag_op_barAcc); | |
5292 | if (!phba->idiag_bar_acc) { | |
5293 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5294 | "3056 Can't create idiag debugfs\n"); | |
5295 | goto debug_failed; | |
5296 | } | |
5297 | idiag.offset.last_rd = 0; | |
5298 | } | |
5299 | ||
2a622bfb JS |
5300 | /* iDiag get PCI function queue information */ |
5301 | snprintf(name, sizeof(name), "queInfo"); | |
5302 | if (!phba->idiag_que_info) { | |
5303 | phba->idiag_que_info = | |
5304 | debugfs_create_file(name, S_IFREG|S_IRUGO, | |
5305 | phba->idiag_root, phba, &lpfc_idiag_op_queInfo); | |
5306 | if (!phba->idiag_que_info) { | |
5307 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5308 | "2924 Can't create idiag debugfs\n"); | |
5309 | goto debug_failed; | |
5310 | } | |
5311 | } | |
5312 | ||
86a80846 JS |
5313 | /* iDiag access PCI function queue */ |
5314 | snprintf(name, sizeof(name), "queAcc"); | |
5315 | if (!phba->idiag_que_acc) { | |
5316 | phba->idiag_que_acc = | |
5317 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5318 | phba->idiag_root, phba, &lpfc_idiag_op_queAcc); | |
5319 | if (!phba->idiag_que_acc) { | |
5320 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5321 | "2926 Can't create idiag debugfs\n"); | |
5322 | goto debug_failed; | |
5323 | } | |
5324 | } | |
5325 | ||
5326 | /* iDiag access PCI function doorbell registers */ | |
5327 | snprintf(name, sizeof(name), "drbAcc"); | |
5328 | if (!phba->idiag_drb_acc) { | |
5329 | phba->idiag_drb_acc = | |
5330 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5331 | phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); | |
5332 | if (!phba->idiag_drb_acc) { | |
5333 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5334 | "2927 Can't create idiag debugfs\n"); | |
5335 | goto debug_failed; | |
5336 | } | |
5337 | } | |
5338 | ||
b76f2dc9 JS |
5339 | /* iDiag access PCI function control registers */ |
5340 | snprintf(name, sizeof(name), "ctlAcc"); | |
5341 | if (!phba->idiag_ctl_acc) { | |
5342 | phba->idiag_ctl_acc = | |
5343 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5344 | phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); | |
5345 | if (!phba->idiag_ctl_acc) { | |
5346 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5347 | "2981 Can't create idiag debugfs\n"); | |
5348 | goto debug_failed; | |
5349 | } | |
5350 | } | |
5351 | ||
5352 | /* iDiag access mbox commands */ | |
5353 | snprintf(name, sizeof(name), "mbxAcc"); | |
5354 | if (!phba->idiag_mbx_acc) { | |
5355 | phba->idiag_mbx_acc = | |
5356 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
5357 | phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); | |
5358 | if (!phba->idiag_mbx_acc) { | |
5359 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5360 | "2980 Can't create idiag debugfs\n"); | |
5361 | goto debug_failed; | |
5362 | } | |
5363 | } | |
5364 | ||
5365 | /* iDiag extents access commands */ | |
5366 | if (phba->sli4_hba.extents_in_use) { | |
5367 | snprintf(name, sizeof(name), "extAcc"); | |
5368 | if (!phba->idiag_ext_acc) { | |
5369 | phba->idiag_ext_acc = | |
5370 | debugfs_create_file(name, | |
5371 | S_IFREG|S_IRUGO|S_IWUSR, | |
5372 | phba->idiag_root, phba, | |
5373 | &lpfc_idiag_op_extAcc); | |
5374 | if (!phba->idiag_ext_acc) { | |
5375 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
5376 | "2986 Cant create " | |
5377 | "idiag debugfs\n"); | |
5378 | goto debug_failed; | |
5379 | } | |
5380 | } | |
5381 | } | |
5382 | ||
858c9f6c JS |
5383 | debug_failed: |
5384 | return; | |
5385 | #endif | |
5386 | } | |
5387 | ||
e59058c4 | 5388 | /** |
3621a710 | 5389 | * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport |
e59058c4 JS |
5390 | * @vport: The vport pointer to remove from debugfs. |
5391 | * | |
5392 | * Description: | |
5393 | * When Debugfs is configured this routine removes debugfs file system elements | |
5394 | * that are specific to this vport. It also checks to see if there are any | |
5395 | * users left for the debugfs directories associated with the HBA and driver. If | |
5396 | * this is the last user of the HBA directory or driver directory then it will | |
5397 | * remove those from the debugfs infrastructure as well. | |
5398 | **/ | |
858c9f6c JS |
5399 | inline void |
5400 | lpfc_debugfs_terminate(struct lpfc_vport *vport) | |
5401 | { | |
923e4b6a | 5402 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
858c9f6c JS |
5403 | struct lpfc_hba *phba = vport->phba; |
5404 | ||
5405 | if (vport->disc_trc) { | |
5406 | kfree(vport->disc_trc); | |
5407 | vport->disc_trc = NULL; | |
5408 | } | |
bd2cdd5e JS |
5409 | |
5410 | debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ | |
5411 | vport->debug_disc_trc = NULL; | |
5412 | ||
5413 | debugfs_remove(vport->debug_nodelist); /* nodelist */ | |
5414 | vport->debug_nodelist = NULL; | |
5415 | ||
5416 | debugfs_remove(vport->debug_nvmestat); /* nvmestat */ | |
5417 | vport->debug_nvmestat = NULL; | |
5418 | ||
5419 | debugfs_remove(vport->debug_nvmektime); /* nvmektime */ | |
5420 | vport->debug_nvmektime = NULL; | |
5421 | ||
5422 | debugfs_remove(vport->debug_cpucheck); /* cpucheck */ | |
5423 | vport->debug_cpucheck = NULL; | |
5424 | ||
858c9f6c JS |
5425 | if (vport->vport_debugfs_root) { |
5426 | debugfs_remove(vport->vport_debugfs_root); /* vportX */ | |
5427 | vport->vport_debugfs_root = NULL; | |
5428 | atomic_dec(&phba->debugfs_vport_count); | |
5429 | } | |
bd2cdd5e | 5430 | |
858c9f6c | 5431 | if (atomic_read(&phba->debugfs_vport_count) == 0) { |
a58cbd52 | 5432 | |
bd2cdd5e JS |
5433 | debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ |
5434 | phba->debug_hbqinfo = NULL; | |
e2a0a9d6 | 5435 | |
bd2cdd5e JS |
5436 | debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ |
5437 | phba->debug_dumpHBASlim = NULL; | |
5438 | ||
5439 | debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ | |
5440 | phba->debug_dumpHostSlim = NULL; | |
5441 | ||
5442 | debugfs_remove(phba->debug_dumpData); /* dumpData */ | |
5443 | phba->debug_dumpData = NULL; | |
5444 | ||
5445 | debugfs_remove(phba->debug_dumpDif); /* dumpDif */ | |
5446 | phba->debug_dumpDif = NULL; | |
5447 | ||
5448 | debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ | |
5449 | phba->debug_InjErrLBA = NULL; | |
5450 | ||
5451 | debugfs_remove(phba->debug_InjErrNPortID); | |
5452 | phba->debug_InjErrNPortID = NULL; | |
5453 | ||
5454 | debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ | |
5455 | phba->debug_InjErrWWPN = NULL; | |
5456 | ||
5457 | debugfs_remove(phba->debug_writeGuard); /* writeGuard */ | |
5458 | phba->debug_writeGuard = NULL; | |
5459 | ||
5460 | debugfs_remove(phba->debug_writeApp); /* writeApp */ | |
5461 | phba->debug_writeApp = NULL; | |
5462 | ||
5463 | debugfs_remove(phba->debug_writeRef); /* writeRef */ | |
5464 | phba->debug_writeRef = NULL; | |
5465 | ||
5466 | debugfs_remove(phba->debug_readGuard); /* readGuard */ | |
5467 | phba->debug_readGuard = NULL; | |
5468 | ||
5469 | debugfs_remove(phba->debug_readApp); /* readApp */ | |
5470 | phba->debug_readApp = NULL; | |
5471 | ||
5472 | debugfs_remove(phba->debug_readRef); /* readRef */ | |
5473 | phba->debug_readRef = NULL; | |
e2a0a9d6 | 5474 | |
a58cbd52 JS |
5475 | if (phba->slow_ring_trc) { |
5476 | kfree(phba->slow_ring_trc); | |
5477 | phba->slow_ring_trc = NULL; | |
5478 | } | |
bd2cdd5e JS |
5479 | |
5480 | /* slow_ring_trace */ | |
5481 | debugfs_remove(phba->debug_slow_ring_trc); | |
5482 | phba->debug_slow_ring_trc = NULL; | |
5483 | ||
5484 | debugfs_remove(phba->debug_nvmeio_trc); | |
5485 | phba->debug_nvmeio_trc = NULL; | |
5486 | ||
5487 | kfree(phba->nvmeio_trc); | |
5488 | phba->nvmeio_trc = NULL; | |
a58cbd52 | 5489 | |
2a622bfb JS |
5490 | /* |
5491 | * iDiag release | |
5492 | */ | |
5493 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
bd2cdd5e JS |
5494 | /* iDiag extAcc */ |
5495 | debugfs_remove(phba->idiag_ext_acc); | |
5496 | phba->idiag_ext_acc = NULL; | |
5497 | ||
5498 | /* iDiag mbxAcc */ | |
5499 | debugfs_remove(phba->idiag_mbx_acc); | |
5500 | phba->idiag_mbx_acc = NULL; | |
5501 | ||
5502 | /* iDiag ctlAcc */ | |
5503 | debugfs_remove(phba->idiag_ctl_acc); | |
5504 | phba->idiag_ctl_acc = NULL; | |
5505 | ||
5506 | /* iDiag drbAcc */ | |
5507 | debugfs_remove(phba->idiag_drb_acc); | |
5508 | phba->idiag_drb_acc = NULL; | |
5509 | ||
5510 | /* iDiag queAcc */ | |
5511 | debugfs_remove(phba->idiag_que_acc); | |
5512 | phba->idiag_que_acc = NULL; | |
5513 | ||
5514 | /* iDiag queInfo */ | |
5515 | debugfs_remove(phba->idiag_que_info); | |
5516 | phba->idiag_que_info = NULL; | |
5517 | ||
5518 | /* iDiag barAcc */ | |
5519 | debugfs_remove(phba->idiag_bar_acc); | |
5520 | phba->idiag_bar_acc = NULL; | |
5521 | ||
5522 | /* iDiag pciCfg */ | |
5523 | debugfs_remove(phba->idiag_pci_cfg); | |
5524 | phba->idiag_pci_cfg = NULL; | |
2a622bfb JS |
5525 | |
5526 | /* Finally remove the iDiag debugfs root */ | |
bd2cdd5e JS |
5527 | debugfs_remove(phba->idiag_root); |
5528 | phba->idiag_root = NULL; | |
2a622bfb JS |
5529 | } |
5530 | ||
a58cbd52 | 5531 | if (phba->hba_debugfs_root) { |
2a622bfb | 5532 | debugfs_remove(phba->hba_debugfs_root); /* fnX */ |
a58cbd52 JS |
5533 | phba->hba_debugfs_root = NULL; |
5534 | atomic_dec(&lpfc_debugfs_hba_count); | |
5535 | } | |
5536 | ||
bd2cdd5e JS |
5537 | debugfs_remove(lpfc_debugfs_root); /* lpfc */ |
5538 | lpfc_debugfs_root = NULL; | |
858c9f6c JS |
5539 | } |
5540 | #endif | |
a58cbd52 | 5541 | return; |
858c9f6c | 5542 | } |
809c7536 JS |
5543 | |
5544 | /* | |
5545 | * Driver debug utility routines outside of debugfs. The debug utility | |
5546 | * routines implemented here is intended to be used in the instrumented | |
5547 | * debug driver for debugging host or port issues. | |
5548 | */ | |
5549 | ||
5550 | /** | |
5551 | * lpfc_debug_dump_all_queues - dump all the queues with a hba | |
5552 | * @phba: Pointer to HBA context object. | |
5553 | * | |
5554 | * This function dumps entries of all the queues asociated with the @phba. | |
5555 | **/ | |
5556 | void | |
5557 | lpfc_debug_dump_all_queues(struct lpfc_hba *phba) | |
5558 | { | |
1d9d5a98 | 5559 | int idx; |
809c7536 JS |
5560 | |
5561 | /* | |
5562 | * Dump Work Queues (WQs) | |
5563 | */ | |
1d9d5a98 JS |
5564 | lpfc_debug_dump_wq(phba, DUMP_MBX, 0); |
5565 | lpfc_debug_dump_wq(phba, DUMP_ELS, 0); | |
895427bd | 5566 | lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0); |
809c7536 | 5567 | |
1d9d5a98 JS |
5568 | for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) |
5569 | lpfc_debug_dump_wq(phba, DUMP_FCP, idx); | |
809c7536 | 5570 | |
895427bd JS |
5571 | for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) |
5572 | lpfc_debug_dump_wq(phba, DUMP_NVME, idx); | |
5573 | ||
809c7536 JS |
5574 | lpfc_debug_dump_hdr_rq(phba); |
5575 | lpfc_debug_dump_dat_rq(phba); | |
5576 | /* | |
5577 | * Dump Complete Queues (CQs) | |
5578 | */ | |
1d9d5a98 JS |
5579 | lpfc_debug_dump_cq(phba, DUMP_MBX, 0); |
5580 | lpfc_debug_dump_cq(phba, DUMP_ELS, 0); | |
895427bd | 5581 | lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0); |
809c7536 | 5582 | |
1d9d5a98 JS |
5583 | for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) |
5584 | lpfc_debug_dump_cq(phba, DUMP_FCP, idx); | |
809c7536 | 5585 | |
895427bd JS |
5586 | for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) |
5587 | lpfc_debug_dump_cq(phba, DUMP_NVME, idx); | |
5588 | ||
809c7536 JS |
5589 | /* |
5590 | * Dump Event Queues (EQs) | |
5591 | */ | |
895427bd | 5592 | for (idx = 0; idx < phba->io_channel_irqs; idx++) |
1d9d5a98 | 5593 | lpfc_debug_dump_hba_eq(phba, idx); |
809c7536 | 5594 | } |