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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. * | |
2a622bfb | 4 | * Copyright (C) 2007-2011 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> | |
23 | #include <linux/dma-mapping.h> | |
24 | #include <linux/idr.h> | |
25 | #include <linux/interrupt.h> | |
26 | #include <linux/kthread.h> | |
5a0e3ad6 | 27 | #include <linux/slab.h> |
858c9f6c JS |
28 | #include <linux/pci.h> |
29 | #include <linux/spinlock.h> | |
30 | #include <linux/ctype.h> | |
858c9f6c JS |
31 | |
32 | #include <scsi/scsi.h> | |
33 | #include <scsi/scsi_device.h> | |
34 | #include <scsi/scsi_host.h> | |
35 | #include <scsi/scsi_transport_fc.h> | |
36 | ||
da0436e9 | 37 | #include "lpfc_hw4.h" |
858c9f6c JS |
38 | #include "lpfc_hw.h" |
39 | #include "lpfc_sli.h" | |
da0436e9 | 40 | #include "lpfc_sli4.h" |
ea2151b4 | 41 | #include "lpfc_nl.h" |
858c9f6c JS |
42 | #include "lpfc_disc.h" |
43 | #include "lpfc_scsi.h" | |
44 | #include "lpfc.h" | |
45 | #include "lpfc_logmsg.h" | |
46 | #include "lpfc_crtn.h" | |
47 | #include "lpfc_vport.h" | |
48 | #include "lpfc_version.h" | |
c95d6c6c | 49 | #include "lpfc_compat.h" |
858c9f6c JS |
50 | #include "lpfc_debugfs.h" |
51 | ||
923e4b6a | 52 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
3621a710 | 53 | /* |
e59058c4 | 54 | * debugfs interface |
858c9f6c JS |
55 | * |
56 | * To access this interface the user should: | |
156f5a78 | 57 | * # mount -t debugfs none /sys/kernel/debug |
858c9f6c | 58 | * |
e59058c4 | 59 | * The lpfc debugfs directory hierarchy is: |
2a622bfb JS |
60 | * /sys/kernel/debug/lpfc/fnX/vportY |
61 | * where X is the lpfc hba function unique_id | |
858c9f6c JS |
62 | * where Y is the vport VPI on that hba |
63 | * | |
64 | * Debugging services available per vport: | |
65 | * discovery_trace | |
66 | * This is an ACSII readable file that contains a trace of the last | |
67 | * lpfc_debugfs_max_disc_trc events that happened on a specific vport. | |
e59058c4 JS |
68 | * See lpfc_debugfs.h for different categories of discovery events. |
69 | * To enable the discovery trace, the following module parameters must be set: | |
858c9f6c JS |
70 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support |
71 | * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for | |
72 | * EACH vport. X MUST also be a power of 2. | |
73 | * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in | |
74 | * lpfc_debugfs.h . | |
e59058c4 JS |
75 | * |
76 | * slow_ring_trace | |
77 | * This is an ACSII readable file that contains a trace of the last | |
78 | * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. | |
79 | * To enable the slow ring trace, the following module parameters must be set: | |
80 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support | |
81 | * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for | |
82 | * the HBA. X MUST also be a power of 2. | |
858c9f6c | 83 | */ |
51ef4c26 | 84 | static int lpfc_debugfs_enable = 1; |
ab56dc2e | 85 | module_param(lpfc_debugfs_enable, int, S_IRUGO); |
858c9f6c JS |
86 | MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); |
87 | ||
a58cbd52 | 88 | /* This MUST be a power of 2 */ |
c95d6c6c | 89 | static int lpfc_debugfs_max_disc_trc; |
ab56dc2e | 90 | module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); |
858c9f6c JS |
91 | MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, |
92 | "Set debugfs discovery trace depth"); | |
93 | ||
a58cbd52 | 94 | /* This MUST be a power of 2 */ |
c95d6c6c | 95 | static int lpfc_debugfs_max_slow_ring_trc; |
ab56dc2e | 96 | module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); |
a58cbd52 JS |
97 | MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, |
98 | "Set debugfs slow ring trace depth"); | |
99 | ||
a257bf90 | 100 | static int lpfc_debugfs_mask_disc_trc; |
ab56dc2e | 101 | module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); |
858c9f6c JS |
102 | MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, |
103 | "Set debugfs discovery trace mask"); | |
104 | ||
105 | #include <linux/debugfs.h> | |
106 | ||
311464ec JS |
107 | static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); |
108 | static unsigned long lpfc_debugfs_start_time = 0L; | |
858c9f6c | 109 | |
2a622bfb JS |
110 | /* iDiag */ |
111 | static struct lpfc_idiag idiag; | |
112 | ||
e59058c4 | 113 | /** |
3621a710 | 114 | * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer |
e59058c4 JS |
115 | * @vport: The vport to gather the log info from. |
116 | * @buf: The buffer to dump log into. | |
117 | * @size: The maximum amount of data to process. | |
118 | * | |
119 | * Description: | |
120 | * This routine gathers the lpfc discovery debugfs data from the @vport and | |
121 | * dumps it to @buf up to @size number of bytes. It will start at the next entry | |
122 | * in the log and process the log until the end of the buffer. Then it will | |
123 | * gather from the beginning of the log and process until the current entry. | |
124 | * | |
125 | * Notes: | |
126 | * Discovery logging will be disabled while while this routine dumps the log. | |
127 | * | |
128 | * Return Value: | |
129 | * This routine returns the amount of bytes that were dumped into @buf and will | |
130 | * not exceed @size. | |
131 | **/ | |
858c9f6c JS |
132 | static int |
133 | lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) | |
134 | { | |
135 | int i, index, len, enable; | |
136 | uint32_t ms; | |
a58cbd52 JS |
137 | struct lpfc_debugfs_trc *dtp; |
138 | char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE]; | |
858c9f6c | 139 | |
858c9f6c JS |
140 | enable = lpfc_debugfs_enable; |
141 | lpfc_debugfs_enable = 0; | |
142 | ||
143 | len = 0; | |
144 | index = (atomic_read(&vport->disc_trc_cnt) + 1) & | |
145 | (lpfc_debugfs_max_disc_trc - 1); | |
146 | for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { | |
147 | dtp = vport->disc_trc + i; | |
148 | if (!dtp->fmt) | |
149 | continue; | |
150 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
a58cbd52 JS |
151 | snprintf(buffer, |
152 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
858c9f6c JS |
153 | dtp->seq_cnt, ms, dtp->fmt); |
154 | len += snprintf(buf+len, size-len, buffer, | |
155 | dtp->data1, dtp->data2, dtp->data3); | |
156 | } | |
157 | for (i = 0; i < index; i++) { | |
158 | dtp = vport->disc_trc + i; | |
159 | if (!dtp->fmt) | |
160 | continue; | |
161 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
a58cbd52 JS |
162 | snprintf(buffer, |
163 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
164 | dtp->seq_cnt, ms, dtp->fmt); | |
165 | len += snprintf(buf+len, size-len, buffer, | |
166 | dtp->data1, dtp->data2, dtp->data3); | |
167 | } | |
168 | ||
169 | lpfc_debugfs_enable = enable; | |
170 | return len; | |
171 | } | |
172 | ||
e59058c4 | 173 | /** |
3621a710 | 174 | * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer |
e59058c4 JS |
175 | * @phba: The HBA to gather the log info from. |
176 | * @buf: The buffer to dump log into. | |
177 | * @size: The maximum amount of data to process. | |
178 | * | |
179 | * Description: | |
180 | * This routine gathers the lpfc slow ring debugfs data from the @phba and | |
181 | * dumps it to @buf up to @size number of bytes. It will start at the next entry | |
182 | * in the log and process the log until the end of the buffer. Then it will | |
183 | * gather from the beginning of the log and process until the current entry. | |
184 | * | |
185 | * Notes: | |
186 | * Slow ring logging will be disabled while while this routine dumps the log. | |
187 | * | |
188 | * Return Value: | |
189 | * This routine returns the amount of bytes that were dumped into @buf and will | |
190 | * not exceed @size. | |
191 | **/ | |
a58cbd52 JS |
192 | static int |
193 | lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) | |
194 | { | |
195 | int i, index, len, enable; | |
196 | uint32_t ms; | |
197 | struct lpfc_debugfs_trc *dtp; | |
198 | char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE]; | |
199 | ||
200 | ||
201 | enable = lpfc_debugfs_enable; | |
202 | lpfc_debugfs_enable = 0; | |
203 | ||
204 | len = 0; | |
205 | index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & | |
206 | (lpfc_debugfs_max_slow_ring_trc - 1); | |
207 | for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { | |
208 | dtp = phba->slow_ring_trc + i; | |
209 | if (!dtp->fmt) | |
210 | continue; | |
211 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
212 | snprintf(buffer, | |
213 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
214 | dtp->seq_cnt, ms, dtp->fmt); | |
215 | len += snprintf(buf+len, size-len, buffer, | |
216 | dtp->data1, dtp->data2, dtp->data3); | |
217 | } | |
218 | for (i = 0; i < index; i++) { | |
219 | dtp = phba->slow_ring_trc + i; | |
220 | if (!dtp->fmt) | |
221 | continue; | |
222 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
223 | snprintf(buffer, | |
224 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
858c9f6c JS |
225 | dtp->seq_cnt, ms, dtp->fmt); |
226 | len += snprintf(buf+len, size-len, buffer, | |
227 | dtp->data1, dtp->data2, dtp->data3); | |
228 | } | |
229 | ||
230 | lpfc_debugfs_enable = enable; | |
231 | return len; | |
232 | } | |
233 | ||
311464ec | 234 | static int lpfc_debugfs_last_hbq = -1; |
78b2d852 | 235 | |
e59058c4 | 236 | /** |
3621a710 | 237 | * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer |
e59058c4 JS |
238 | * @phba: The HBA to gather host buffer info from. |
239 | * @buf: The buffer to dump log into. | |
240 | * @size: The maximum amount of data to process. | |
241 | * | |
242 | * Description: | |
243 | * This routine dumps the host buffer queue info from the @phba to @buf up to | |
244 | * @size number of bytes. A header that describes the current hbq state will be | |
245 | * dumped to @buf first and then info on each hbq entry will be dumped to @buf | |
246 | * until @size bytes have been dumped or all the hbq info has been dumped. | |
247 | * | |
248 | * Notes: | |
249 | * This routine will rotate through each configured HBQ each time called. | |
250 | * | |
251 | * Return Value: | |
252 | * This routine returns the amount of bytes that were dumped into @buf and will | |
253 | * not exceed @size. | |
254 | **/ | |
78b2d852 JS |
255 | static int |
256 | lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) | |
257 | { | |
258 | int len = 0; | |
259 | int cnt, i, j, found, posted, low; | |
260 | uint32_t phys, raw_index, getidx; | |
261 | struct lpfc_hbq_init *hip; | |
262 | struct hbq_s *hbqs; | |
263 | struct lpfc_hbq_entry *hbqe; | |
264 | struct lpfc_dmabuf *d_buf; | |
265 | struct hbq_dmabuf *hbq_buf; | |
266 | ||
3772a991 JS |
267 | if (phba->sli_rev != 3) |
268 | return 0; | |
78b2d852 JS |
269 | cnt = LPFC_HBQINFO_SIZE; |
270 | spin_lock_irq(&phba->hbalock); | |
271 | ||
272 | /* toggle between multiple hbqs, if any */ | |
273 | i = lpfc_sli_hbq_count(); | |
274 | if (i > 1) { | |
275 | lpfc_debugfs_last_hbq++; | |
276 | if (lpfc_debugfs_last_hbq >= i) | |
277 | lpfc_debugfs_last_hbq = 0; | |
278 | } | |
279 | else | |
280 | lpfc_debugfs_last_hbq = 0; | |
281 | ||
282 | i = lpfc_debugfs_last_hbq; | |
283 | ||
284 | len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); | |
285 | ||
51ef4c26 | 286 | hbqs = &phba->hbqs[i]; |
78b2d852 | 287 | posted = 0; |
51ef4c26 | 288 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) |
78b2d852 JS |
289 | posted++; |
290 | ||
291 | hip = lpfc_hbq_defs[i]; | |
292 | len += snprintf(buf+len, size-len, | |
293 | "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", | |
294 | hip->hbq_index, hip->profile, hip->rn, | |
295 | hip->buffer_count, hip->init_count, hip->add_count, posted); | |
296 | ||
78b2d852 JS |
297 | raw_index = phba->hbq_get[i]; |
298 | getidx = le32_to_cpu(raw_index); | |
299 | len += snprintf(buf+len, size-len, | |
a8adb832 JS |
300 | "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", |
301 | hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, | |
302 | hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); | |
78b2d852 | 303 | |
51ef4c26 | 304 | hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; |
78b2d852 JS |
305 | for (j=0; j<hbqs->entry_count; j++) { |
306 | len += snprintf(buf+len, size-len, | |
307 | "%03d: %08x %04x %05x ", j, | |
a8adb832 JS |
308 | le32_to_cpu(hbqe->bde.addrLow), |
309 | le32_to_cpu(hbqe->bde.tus.w), | |
310 | le32_to_cpu(hbqe->buffer_tag)); | |
78b2d852 JS |
311 | i = 0; |
312 | found = 0; | |
313 | ||
314 | /* First calculate if slot has an associated posted buffer */ | |
315 | low = hbqs->hbqPutIdx - posted; | |
316 | if (low >= 0) { | |
317 | if ((j >= hbqs->hbqPutIdx) || (j < low)) { | |
318 | len += snprintf(buf+len, size-len, "Unused\n"); | |
319 | goto skipit; | |
320 | } | |
321 | } | |
322 | else { | |
323 | if ((j >= hbqs->hbqPutIdx) && | |
324 | (j < (hbqs->entry_count+low))) { | |
325 | len += snprintf(buf+len, size-len, "Unused\n"); | |
326 | goto skipit; | |
327 | } | |
328 | } | |
329 | ||
330 | /* Get the Buffer info for the posted buffer */ | |
51ef4c26 | 331 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { |
78b2d852 JS |
332 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
333 | phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); | |
a8adb832 | 334 | if (phys == le32_to_cpu(hbqe->bde.addrLow)) { |
78b2d852 JS |
335 | len += snprintf(buf+len, size-len, |
336 | "Buf%d: %p %06x\n", i, | |
337 | hbq_buf->dbuf.virt, hbq_buf->tag); | |
338 | found = 1; | |
339 | break; | |
340 | } | |
341 | i++; | |
342 | } | |
343 | if (!found) { | |
344 | len += snprintf(buf+len, size-len, "No DMAinfo?\n"); | |
345 | } | |
346 | skipit: | |
347 | hbqe++; | |
348 | if (len > LPFC_HBQINFO_SIZE - 54) | |
349 | break; | |
350 | } | |
351 | spin_unlock_irq(&phba->hbalock); | |
352 | return len; | |
353 | } | |
354 | ||
c95d6c6c JS |
355 | static int lpfc_debugfs_last_hba_slim_off; |
356 | ||
e59058c4 | 357 | /** |
3621a710 | 358 | * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer |
e59058c4 JS |
359 | * @phba: The HBA to gather SLIM info from. |
360 | * @buf: The buffer to dump log into. | |
361 | * @size: The maximum amount of data to process. | |
362 | * | |
363 | * Description: | |
364 | * This routine dumps the current contents of HBA SLIM for the HBA associated | |
365 | * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. | |
366 | * | |
367 | * Notes: | |
368 | * This routine will only dump up to 1024 bytes of data each time called and | |
369 | * should be called multiple times to dump the entire HBA SLIM. | |
370 | * | |
371 | * Return Value: | |
372 | * This routine returns the amount of bytes that were dumped into @buf and will | |
373 | * not exceed @size. | |
374 | **/ | |
c95d6c6c JS |
375 | static int |
376 | lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) | |
377 | { | |
378 | int len = 0; | |
379 | int i, off; | |
380 | uint32_t *ptr; | |
381 | char buffer[1024]; | |
382 | ||
383 | off = 0; | |
384 | spin_lock_irq(&phba->hbalock); | |
385 | ||
386 | len += snprintf(buf+len, size-len, "HBA SLIM\n"); | |
387 | lpfc_memcpy_from_slim(buffer, | |
a257bf90 | 388 | phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); |
c95d6c6c JS |
389 | |
390 | ptr = (uint32_t *)&buffer[0]; | |
391 | off = lpfc_debugfs_last_hba_slim_off; | |
392 | ||
393 | /* Set it up for the next time */ | |
394 | lpfc_debugfs_last_hba_slim_off += 1024; | |
395 | if (lpfc_debugfs_last_hba_slim_off >= 4096) | |
396 | lpfc_debugfs_last_hba_slim_off = 0; | |
397 | ||
398 | i = 1024; | |
399 | while (i > 0) { | |
400 | len += snprintf(buf+len, size-len, | |
401 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", | |
402 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), | |
403 | *(ptr+5), *(ptr+6), *(ptr+7)); | |
404 | ptr += 8; | |
405 | i -= (8 * sizeof(uint32_t)); | |
406 | off += (8 * sizeof(uint32_t)); | |
407 | } | |
408 | ||
409 | spin_unlock_irq(&phba->hbalock); | |
410 | return len; | |
411 | } | |
412 | ||
e59058c4 | 413 | /** |
3621a710 | 414 | * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer |
e59058c4 JS |
415 | * @phba: The HBA to gather Host SLIM info from. |
416 | * @buf: The buffer to dump log into. | |
417 | * @size: The maximum amount of data to process. | |
418 | * | |
419 | * Description: | |
420 | * This routine dumps the current contents of host SLIM for the host associated | |
421 | * with @phba to @buf up to @size bytes of data. The dump will contain the | |
422 | * Mailbox, PCB, Rings, and Registers that are located in host memory. | |
423 | * | |
424 | * Return Value: | |
425 | * This routine returns the amount of bytes that were dumped into @buf and will | |
426 | * not exceed @size. | |
427 | **/ | |
a58cbd52 | 428 | static int |
c95d6c6c | 429 | lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) |
a58cbd52 JS |
430 | { |
431 | int len = 0; | |
c95d6c6c | 432 | int i, off; |
a58cbd52 JS |
433 | uint32_t word0, word1, word2, word3; |
434 | uint32_t *ptr; | |
435 | struct lpfc_pgp *pgpp; | |
436 | struct lpfc_sli *psli = &phba->sli; | |
437 | struct lpfc_sli_ring *pring; | |
438 | ||
a58cbd52 JS |
439 | off = 0; |
440 | spin_lock_irq(&phba->hbalock); | |
441 | ||
442 | len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); | |
34b02dcd | 443 | ptr = (uint32_t *)phba->slim2p.virt; |
a58cbd52 JS |
444 | i = sizeof(MAILBOX_t); |
445 | while (i > 0) { | |
446 | len += snprintf(buf+len, size-len, | |
447 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", | |
448 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), | |
449 | *(ptr+5), *(ptr+6), *(ptr+7)); | |
450 | ptr += 8; | |
451 | i -= (8 * sizeof(uint32_t)); | |
452 | off += (8 * sizeof(uint32_t)); | |
453 | } | |
454 | ||
455 | len += snprintf(buf+len, size-len, "SLIM PCB\n"); | |
34b02dcd | 456 | ptr = (uint32_t *)phba->pcb; |
a58cbd52 JS |
457 | i = sizeof(PCB_t); |
458 | while (i > 0) { | |
459 | len += snprintf(buf+len, size-len, | |
460 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", | |
461 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), | |
462 | *(ptr+5), *(ptr+6), *(ptr+7)); | |
463 | ptr += 8; | |
464 | i -= (8 * sizeof(uint32_t)); | |
465 | off += (8 * sizeof(uint32_t)); | |
466 | } | |
467 | ||
34b02dcd JS |
468 | for (i = 0; i < 4; i++) { |
469 | pgpp = &phba->port_gp[i]; | |
470 | pring = &psli->ring[i]; | |
471 | len += snprintf(buf+len, size-len, | |
472 | "Ring %d: CMD GetInx:%d (Max:%d Next:%d " | |
473 | "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n", | |
474 | i, pgpp->cmdGetInx, pring->numCiocb, | |
475 | pring->next_cmdidx, pring->local_getidx, | |
476 | pring->flag, pgpp->rspPutInx, pring->numRiocb); | |
477 | } | |
3772a991 JS |
478 | |
479 | if (phba->sli_rev <= LPFC_SLI_REV3) { | |
480 | word0 = readl(phba->HAregaddr); | |
481 | word1 = readl(phba->CAregaddr); | |
482 | word2 = readl(phba->HSregaddr); | |
483 | word3 = readl(phba->HCregaddr); | |
484 | len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " | |
485 | "HC:%08x\n", word0, word1, word2, word3); | |
486 | } | |
a58cbd52 JS |
487 | spin_unlock_irq(&phba->hbalock); |
488 | return len; | |
489 | } | |
490 | ||
e59058c4 | 491 | /** |
3621a710 | 492 | * lpfc_debugfs_nodelist_data - Dump target node list to a buffer |
e59058c4 JS |
493 | * @vport: The vport to gather target node info from. |
494 | * @buf: The buffer to dump log into. | |
495 | * @size: The maximum amount of data to process. | |
496 | * | |
497 | * Description: | |
498 | * This routine dumps the current target node list associated with @vport to | |
499 | * @buf up to @size bytes of data. Each node entry in the dump will contain a | |
500 | * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. | |
501 | * | |
502 | * Return Value: | |
503 | * This routine returns the amount of bytes that were dumped into @buf and will | |
504 | * not exceed @size. | |
505 | **/ | |
858c9f6c JS |
506 | static int |
507 | lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) | |
508 | { | |
509 | int len = 0; | |
510 | int cnt; | |
511 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
512 | struct lpfc_nodelist *ndlp; | |
513 | unsigned char *statep, *name; | |
514 | ||
515 | cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); | |
516 | ||
517 | spin_lock_irq(shost->host_lock); | |
518 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { | |
519 | if (!cnt) { | |
520 | len += snprintf(buf+len, size-len, | |
521 | "Missing Nodelist Entries\n"); | |
522 | break; | |
523 | } | |
524 | cnt--; | |
525 | switch (ndlp->nlp_state) { | |
526 | case NLP_STE_UNUSED_NODE: | |
527 | statep = "UNUSED"; | |
528 | break; | |
529 | case NLP_STE_PLOGI_ISSUE: | |
530 | statep = "PLOGI "; | |
531 | break; | |
532 | case NLP_STE_ADISC_ISSUE: | |
533 | statep = "ADISC "; | |
534 | break; | |
535 | case NLP_STE_REG_LOGIN_ISSUE: | |
536 | statep = "REGLOG"; | |
537 | break; | |
538 | case NLP_STE_PRLI_ISSUE: | |
539 | statep = "PRLI "; | |
540 | break; | |
541 | case NLP_STE_UNMAPPED_NODE: | |
542 | statep = "UNMAP "; | |
543 | break; | |
544 | case NLP_STE_MAPPED_NODE: | |
545 | statep = "MAPPED"; | |
546 | break; | |
547 | case NLP_STE_NPR_NODE: | |
548 | statep = "NPR "; | |
549 | break; | |
550 | default: | |
551 | statep = "UNKNOWN"; | |
552 | } | |
553 | len += snprintf(buf+len, size-len, "%s DID:x%06x ", | |
554 | statep, ndlp->nlp_DID); | |
555 | name = (unsigned char *)&ndlp->nlp_portname; | |
556 | len += snprintf(buf+len, size-len, | |
557 | "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", | |
558 | *name, *(name+1), *(name+2), *(name+3), | |
559 | *(name+4), *(name+5), *(name+6), *(name+7)); | |
560 | name = (unsigned char *)&ndlp->nlp_nodename; | |
561 | len += snprintf(buf+len, size-len, | |
562 | "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", | |
563 | *name, *(name+1), *(name+2), *(name+3), | |
564 | *(name+4), *(name+5), *(name+6), *(name+7)); | |
565 | len += snprintf(buf+len, size-len, "RPI:%03d flag:x%08x ", | |
566 | ndlp->nlp_rpi, ndlp->nlp_flag); | |
567 | if (!ndlp->nlp_type) | |
a58cbd52 | 568 | len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); |
858c9f6c JS |
569 | if (ndlp->nlp_type & NLP_FC_NODE) |
570 | len += snprintf(buf+len, size-len, "FC_NODE "); | |
571 | if (ndlp->nlp_type & NLP_FABRIC) | |
572 | len += snprintf(buf+len, size-len, "FABRIC "); | |
573 | if (ndlp->nlp_type & NLP_FCP_TARGET) | |
574 | len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", | |
575 | ndlp->nlp_sid); | |
576 | if (ndlp->nlp_type & NLP_FCP_INITIATOR) | |
a58cbd52 | 577 | len += snprintf(buf+len, size-len, "FCP_INITIATOR "); |
58da1ffb JS |
578 | len += snprintf(buf+len, size-len, "usgmap:%x ", |
579 | ndlp->nlp_usg_map); | |
a58cbd52 JS |
580 | len += snprintf(buf+len, size-len, "refcnt:%x", |
581 | atomic_read(&ndlp->kref.refcount)); | |
858c9f6c JS |
582 | len += snprintf(buf+len, size-len, "\n"); |
583 | } | |
584 | spin_unlock_irq(shost->host_lock); | |
585 | return len; | |
586 | } | |
587 | #endif | |
588 | ||
e59058c4 | 589 | /** |
3621a710 | 590 | * lpfc_debugfs_disc_trc - Store discovery trace log |
e59058c4 JS |
591 | * @vport: The vport to associate this trace string with for retrieval. |
592 | * @mask: Log entry classification. | |
593 | * @fmt: Format string to be displayed when dumping the log. | |
594 | * @data1: 1st data parameter to be applied to @fmt. | |
595 | * @data2: 2nd data parameter to be applied to @fmt. | |
596 | * @data3: 3rd data parameter to be applied to @fmt. | |
597 | * | |
598 | * Description: | |
599 | * This routine is used by the driver code to add a debugfs log entry to the | |
600 | * discovery trace buffer associated with @vport. Only entries with a @mask that | |
601 | * match the current debugfs discovery mask will be saved. Entries that do not | |
602 | * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like | |
603 | * printf when displaying the log. | |
604 | **/ | |
858c9f6c JS |
605 | inline void |
606 | lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, | |
607 | uint32_t data1, uint32_t data2, uint32_t data3) | |
608 | { | |
923e4b6a | 609 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
a58cbd52 | 610 | struct lpfc_debugfs_trc *dtp; |
858c9f6c JS |
611 | int index; |
612 | ||
613 | if (!(lpfc_debugfs_mask_disc_trc & mask)) | |
614 | return; | |
615 | ||
616 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || | |
617 | !vport || !vport->disc_trc) | |
618 | return; | |
619 | ||
620 | index = atomic_inc_return(&vport->disc_trc_cnt) & | |
621 | (lpfc_debugfs_max_disc_trc - 1); | |
622 | dtp = vport->disc_trc + index; | |
623 | dtp->fmt = fmt; | |
624 | dtp->data1 = data1; | |
625 | dtp->data2 = data2; | |
626 | dtp->data3 = data3; | |
a58cbd52 JS |
627 | dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); |
628 | dtp->jif = jiffies; | |
629 | #endif | |
630 | return; | |
631 | } | |
632 | ||
e59058c4 | 633 | /** |
3621a710 | 634 | * lpfc_debugfs_slow_ring_trc - Store slow ring trace log |
e59058c4 JS |
635 | * @phba: The phba to associate this trace string with for retrieval. |
636 | * @fmt: Format string to be displayed when dumping the log. | |
637 | * @data1: 1st data parameter to be applied to @fmt. | |
638 | * @data2: 2nd data parameter to be applied to @fmt. | |
639 | * @data3: 3rd data parameter to be applied to @fmt. | |
640 | * | |
641 | * Description: | |
642 | * This routine is used by the driver code to add a debugfs log entry to the | |
643 | * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and | |
644 | * @data3 are used like printf when displaying the log. | |
645 | **/ | |
a58cbd52 JS |
646 | inline void |
647 | lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, | |
648 | uint32_t data1, uint32_t data2, uint32_t data3) | |
649 | { | |
923e4b6a | 650 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
a58cbd52 JS |
651 | struct lpfc_debugfs_trc *dtp; |
652 | int index; | |
653 | ||
654 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || | |
655 | !phba || !phba->slow_ring_trc) | |
656 | return; | |
657 | ||
658 | index = atomic_inc_return(&phba->slow_ring_trc_cnt) & | |
659 | (lpfc_debugfs_max_slow_ring_trc - 1); | |
660 | dtp = phba->slow_ring_trc + index; | |
661 | dtp->fmt = fmt; | |
662 | dtp->data1 = data1; | |
663 | dtp->data2 = data2; | |
664 | dtp->data3 = data3; | |
665 | dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); | |
858c9f6c JS |
666 | dtp->jif = jiffies; |
667 | #endif | |
668 | return; | |
669 | } | |
670 | ||
923e4b6a | 671 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
e59058c4 | 672 | /** |
3621a710 | 673 | * lpfc_debugfs_disc_trc_open - Open the discovery trace log |
e59058c4 JS |
674 | * @inode: The inode pointer that contains a vport pointer. |
675 | * @file: The file pointer to attach the log output. | |
676 | * | |
677 | * Description: | |
678 | * This routine is the entry point for the debugfs open file operation. It gets | |
679 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
680 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
681 | * returns a pointer to that log in the private_data field in @file. | |
682 | * | |
683 | * Returns: | |
684 | * This function returns zero if successful. On error it will return an negative | |
685 | * error value. | |
686 | **/ | |
858c9f6c JS |
687 | static int |
688 | lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) | |
689 | { | |
690 | struct lpfc_vport *vport = inode->i_private; | |
691 | struct lpfc_debug *debug; | |
692 | int size; | |
693 | int rc = -ENOMEM; | |
694 | ||
695 | if (!lpfc_debugfs_max_disc_trc) { | |
696 | rc = -ENOSPC; | |
697 | goto out; | |
698 | } | |
699 | ||
700 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
701 | if (!debug) | |
702 | goto out; | |
703 | ||
e59058c4 | 704 | /* Round to page boundary */ |
a58cbd52 | 705 | size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
858c9f6c JS |
706 | size = PAGE_ALIGN(size); |
707 | ||
708 | debug->buffer = kmalloc(size, GFP_KERNEL); | |
709 | if (!debug->buffer) { | |
710 | kfree(debug); | |
711 | goto out; | |
712 | } | |
713 | ||
714 | debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); | |
715 | file->private_data = debug; | |
716 | ||
717 | rc = 0; | |
718 | out: | |
719 | return rc; | |
720 | } | |
721 | ||
e59058c4 | 722 | /** |
3621a710 | 723 | * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log |
e59058c4 JS |
724 | * @inode: The inode pointer that contains a vport pointer. |
725 | * @file: The file pointer to attach the log output. | |
726 | * | |
727 | * Description: | |
728 | * This routine is the entry point for the debugfs open file operation. It gets | |
729 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
730 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
731 | * returns a pointer to that log in the private_data field in @file. | |
732 | * | |
733 | * Returns: | |
734 | * This function returns zero if successful. On error it will return an negative | |
735 | * error value. | |
736 | **/ | |
a58cbd52 JS |
737 | static int |
738 | lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) | |
739 | { | |
740 | struct lpfc_hba *phba = inode->i_private; | |
741 | struct lpfc_debug *debug; | |
742 | int size; | |
743 | int rc = -ENOMEM; | |
744 | ||
745 | if (!lpfc_debugfs_max_slow_ring_trc) { | |
746 | rc = -ENOSPC; | |
747 | goto out; | |
748 | } | |
749 | ||
750 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
751 | if (!debug) | |
752 | goto out; | |
753 | ||
e59058c4 | 754 | /* Round to page boundary */ |
a58cbd52 JS |
755 | size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
756 | size = PAGE_ALIGN(size); | |
757 | ||
758 | debug->buffer = kmalloc(size, GFP_KERNEL); | |
759 | if (!debug->buffer) { | |
760 | kfree(debug); | |
761 | goto out; | |
762 | } | |
763 | ||
764 | debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); | |
765 | file->private_data = debug; | |
766 | ||
767 | rc = 0; | |
768 | out: | |
769 | return rc; | |
770 | } | |
771 | ||
e59058c4 | 772 | /** |
3621a710 | 773 | * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer |
e59058c4 JS |
774 | * @inode: The inode pointer that contains a vport pointer. |
775 | * @file: The file pointer to attach the log output. | |
776 | * | |
777 | * Description: | |
778 | * This routine is the entry point for the debugfs open file operation. It gets | |
779 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
780 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
781 | * returns a pointer to that log in the private_data field in @file. | |
782 | * | |
783 | * Returns: | |
784 | * This function returns zero if successful. On error it will return an negative | |
785 | * error value. | |
786 | **/ | |
78b2d852 JS |
787 | static int |
788 | lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) | |
789 | { | |
790 | struct lpfc_hba *phba = inode->i_private; | |
791 | struct lpfc_debug *debug; | |
792 | int rc = -ENOMEM; | |
793 | ||
794 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
795 | if (!debug) | |
796 | goto out; | |
797 | ||
e59058c4 | 798 | /* Round to page boundary */ |
78b2d852 JS |
799 | debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); |
800 | if (!debug->buffer) { | |
801 | kfree(debug); | |
802 | goto out; | |
803 | } | |
804 | ||
805 | debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, | |
806 | LPFC_HBQINFO_SIZE); | |
807 | file->private_data = debug; | |
808 | ||
809 | rc = 0; | |
810 | out: | |
811 | return rc; | |
812 | } | |
813 | ||
e59058c4 | 814 | /** |
3621a710 | 815 | * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer |
e59058c4 JS |
816 | * @inode: The inode pointer that contains a vport pointer. |
817 | * @file: The file pointer to attach the log output. | |
818 | * | |
819 | * Description: | |
820 | * This routine is the entry point for the debugfs open file operation. It gets | |
821 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
822 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
823 | * returns a pointer to that log in the private_data field in @file. | |
824 | * | |
825 | * Returns: | |
826 | * This function returns zero if successful. On error it will return an negative | |
827 | * error value. | |
828 | **/ | |
a58cbd52 | 829 | static int |
c95d6c6c | 830 | lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) |
a58cbd52 JS |
831 | { |
832 | struct lpfc_hba *phba = inode->i_private; | |
833 | struct lpfc_debug *debug; | |
834 | int rc = -ENOMEM; | |
835 | ||
836 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
837 | if (!debug) | |
838 | goto out; | |
839 | ||
e59058c4 | 840 | /* Round to page boundary */ |
c95d6c6c | 841 | debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); |
a58cbd52 JS |
842 | if (!debug->buffer) { |
843 | kfree(debug); | |
844 | goto out; | |
845 | } | |
846 | ||
c95d6c6c JS |
847 | debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, |
848 | LPFC_DUMPHBASLIM_SIZE); | |
849 | file->private_data = debug; | |
850 | ||
851 | rc = 0; | |
852 | out: | |
853 | return rc; | |
854 | } | |
855 | ||
e59058c4 | 856 | /** |
3621a710 | 857 | * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer |
e59058c4 JS |
858 | * @inode: The inode pointer that contains a vport pointer. |
859 | * @file: The file pointer to attach the log output. | |
860 | * | |
861 | * Description: | |
862 | * This routine is the entry point for the debugfs open file operation. It gets | |
863 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
864 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
865 | * returns a pointer to that log in the private_data field in @file. | |
866 | * | |
867 | * Returns: | |
868 | * This function returns zero if successful. On error it will return an negative | |
869 | * error value. | |
870 | **/ | |
c95d6c6c JS |
871 | static int |
872 | lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) | |
873 | { | |
874 | struct lpfc_hba *phba = inode->i_private; | |
875 | struct lpfc_debug *debug; | |
876 | int rc = -ENOMEM; | |
877 | ||
878 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
879 | if (!debug) | |
880 | goto out; | |
881 | ||
e59058c4 | 882 | /* Round to page boundary */ |
c95d6c6c JS |
883 | debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); |
884 | if (!debug->buffer) { | |
885 | kfree(debug); | |
886 | goto out; | |
887 | } | |
888 | ||
889 | debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, | |
890 | LPFC_DUMPHOSTSLIM_SIZE); | |
a58cbd52 JS |
891 | file->private_data = debug; |
892 | ||
893 | rc = 0; | |
894 | out: | |
895 | return rc; | |
896 | } | |
897 | ||
e2a0a9d6 JS |
898 | static int |
899 | lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) | |
900 | { | |
901 | struct lpfc_debug *debug; | |
902 | int rc = -ENOMEM; | |
903 | ||
904 | if (!_dump_buf_data) | |
905 | return -EBUSY; | |
906 | ||
907 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
908 | if (!debug) | |
909 | goto out; | |
910 | ||
911 | /* Round to page boundry */ | |
6a9c52cf | 912 | printk(KERN_ERR "9059 BLKGRD: %s: _dump_buf_data=0x%p\n", |
e2a0a9d6 JS |
913 | __func__, _dump_buf_data); |
914 | debug->buffer = _dump_buf_data; | |
915 | if (!debug->buffer) { | |
916 | kfree(debug); | |
917 | goto out; | |
918 | } | |
919 | ||
920 | debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; | |
921 | file->private_data = debug; | |
922 | ||
923 | rc = 0; | |
924 | out: | |
925 | return rc; | |
926 | } | |
927 | ||
928 | static int | |
929 | lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) | |
930 | { | |
931 | struct lpfc_debug *debug; | |
932 | int rc = -ENOMEM; | |
933 | ||
934 | if (!_dump_buf_dif) | |
935 | return -EBUSY; | |
936 | ||
937 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
938 | if (!debug) | |
939 | goto out; | |
940 | ||
941 | /* Round to page boundry */ | |
6a9c52cf JS |
942 | printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n", |
943 | __func__, _dump_buf_dif, file->f_dentry->d_name.name); | |
e2a0a9d6 JS |
944 | debug->buffer = _dump_buf_dif; |
945 | if (!debug->buffer) { | |
946 | kfree(debug); | |
947 | goto out; | |
948 | } | |
949 | ||
950 | debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; | |
951 | file->private_data = debug; | |
952 | ||
953 | rc = 0; | |
954 | out: | |
955 | return rc; | |
956 | } | |
957 | ||
958 | static ssize_t | |
959 | lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, | |
960 | size_t nbytes, loff_t *ppos) | |
961 | { | |
962 | /* | |
963 | * The Data/DIF buffers only save one failing IO | |
964 | * The write op is used as a reset mechanism after an IO has | |
965 | * already been saved to the next one can be saved | |
966 | */ | |
967 | spin_lock(&_dump_buf_lock); | |
968 | ||
969 | memset((void *)_dump_buf_data, 0, | |
970 | ((1 << PAGE_SHIFT) << _dump_buf_data_order)); | |
971 | memset((void *)_dump_buf_dif, 0, | |
972 | ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); | |
973 | ||
974 | _dump_buf_done = 0; | |
975 | ||
976 | spin_unlock(&_dump_buf_lock); | |
977 | ||
978 | return nbytes; | |
979 | } | |
980 | ||
e59058c4 | 981 | /** |
3621a710 | 982 | * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file |
e59058c4 JS |
983 | * @inode: The inode pointer that contains a vport pointer. |
984 | * @file: The file pointer to attach the log output. | |
985 | * | |
986 | * Description: | |
987 | * This routine is the entry point for the debugfs open file operation. It gets | |
988 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
989 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
990 | * returns a pointer to that log in the private_data field in @file. | |
991 | * | |
992 | * Returns: | |
993 | * This function returns zero if successful. On error it will return an negative | |
994 | * error value. | |
995 | **/ | |
858c9f6c JS |
996 | static int |
997 | lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) | |
998 | { | |
999 | struct lpfc_vport *vport = inode->i_private; | |
1000 | struct lpfc_debug *debug; | |
1001 | int rc = -ENOMEM; | |
1002 | ||
1003 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1004 | if (!debug) | |
1005 | goto out; | |
1006 | ||
e59058c4 | 1007 | /* Round to page boundary */ |
858c9f6c JS |
1008 | debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); |
1009 | if (!debug->buffer) { | |
1010 | kfree(debug); | |
1011 | goto out; | |
1012 | } | |
1013 | ||
1014 | debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, | |
1015 | LPFC_NODELIST_SIZE); | |
1016 | file->private_data = debug; | |
1017 | ||
1018 | rc = 0; | |
1019 | out: | |
1020 | return rc; | |
1021 | } | |
1022 | ||
e59058c4 | 1023 | /** |
3621a710 | 1024 | * lpfc_debugfs_lseek - Seek through a debugfs file |
e59058c4 JS |
1025 | * @file: The file pointer to seek through. |
1026 | * @off: The offset to seek to or the amount to seek by. | |
1027 | * @whence: Indicates how to seek. | |
1028 | * | |
1029 | * Description: | |
1030 | * This routine is the entry point for the debugfs lseek file operation. The | |
1031 | * @whence parameter indicates whether @off is the offset to directly seek to, | |
1032 | * or if it is a value to seek forward or reverse by. This function figures out | |
1033 | * what the new offset of the debugfs file will be and assigns that value to the | |
1034 | * f_pos field of @file. | |
1035 | * | |
1036 | * Returns: | |
1037 | * This function returns the new offset if successful and returns a negative | |
1038 | * error if unable to process the seek. | |
1039 | **/ | |
858c9f6c JS |
1040 | static loff_t |
1041 | lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) | |
1042 | { | |
1043 | struct lpfc_debug *debug; | |
1044 | loff_t pos = -1; | |
1045 | ||
1046 | debug = file->private_data; | |
1047 | ||
1048 | switch (whence) { | |
1049 | case 0: | |
1050 | pos = off; | |
1051 | break; | |
1052 | case 1: | |
1053 | pos = file->f_pos + off; | |
1054 | break; | |
1055 | case 2: | |
1056 | pos = debug->len - off; | |
1057 | } | |
1058 | return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos); | |
1059 | } | |
1060 | ||
e59058c4 | 1061 | /** |
3621a710 | 1062 | * lpfc_debugfs_read - Read a debugfs file |
e59058c4 JS |
1063 | * @file: The file pointer to read from. |
1064 | * @buf: The buffer to copy the data to. | |
1065 | * @nbytes: The number of bytes to read. | |
1066 | * @ppos: The position in the file to start reading from. | |
1067 | * | |
1068 | * Description: | |
1069 | * This routine reads data from from the buffer indicated in the private_data | |
1070 | * field of @file. It will start reading at @ppos and copy up to @nbytes of | |
1071 | * data to @buf. | |
1072 | * | |
1073 | * Returns: | |
1074 | * This function returns the amount of data that was read (this could be less | |
1075 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1076 | **/ | |
858c9f6c JS |
1077 | static ssize_t |
1078 | lpfc_debugfs_read(struct file *file, char __user *buf, | |
1079 | size_t nbytes, loff_t *ppos) | |
1080 | { | |
1081 | struct lpfc_debug *debug = file->private_data; | |
2a622bfb | 1082 | |
858c9f6c JS |
1083 | return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, |
1084 | debug->len); | |
1085 | } | |
1086 | ||
e59058c4 | 1087 | /** |
3621a710 | 1088 | * lpfc_debugfs_release - Release the buffer used to store debugfs file data |
e59058c4 JS |
1089 | * @inode: The inode pointer that contains a vport pointer. (unused) |
1090 | * @file: The file pointer that contains the buffer to release. | |
1091 | * | |
1092 | * Description: | |
1093 | * This routine frees the buffer that was allocated when the debugfs file was | |
1094 | * opened. | |
1095 | * | |
1096 | * Returns: | |
1097 | * This function returns zero. | |
1098 | **/ | |
858c9f6c JS |
1099 | static int |
1100 | lpfc_debugfs_release(struct inode *inode, struct file *file) | |
1101 | { | |
1102 | struct lpfc_debug *debug = file->private_data; | |
1103 | ||
1104 | kfree(debug->buffer); | |
1105 | kfree(debug); | |
1106 | ||
1107 | return 0; | |
1108 | } | |
1109 | ||
e2a0a9d6 JS |
1110 | static int |
1111 | lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) | |
1112 | { | |
1113 | struct lpfc_debug *debug = file->private_data; | |
1114 | ||
1115 | debug->buffer = NULL; | |
1116 | kfree(debug); | |
1117 | ||
1118 | return 0; | |
1119 | } | |
1120 | ||
2a622bfb JS |
1121 | /* |
1122 | * iDiag debugfs file access methods | |
1123 | */ | |
1124 | ||
1125 | /* | |
1126 | * iDiag PCI config space register access methods: | |
1127 | * | |
1128 | * The PCI config space register accessees of read, write, read-modify-write | |
1129 | * for set bits, and read-modify-write for clear bits to SLI4 PCI functions | |
1130 | * are provided. In the proper SLI4 PCI function's debugfs iDiag directory, | |
1131 | * | |
1132 | * /sys/kernel/debug/lpfc/fn<#>/iDiag | |
1133 | * | |
1134 | * the access is through the debugfs entry pciCfg: | |
1135 | * | |
1136 | * 1. For PCI config space register read access, there are two read methods: | |
1137 | * A) read a single PCI config space register in the size of a byte | |
1138 | * (8 bits), a word (16 bits), or a dword (32 bits); or B) browse through | |
1139 | * the 4K extended PCI config space. | |
1140 | * | |
1141 | * A) Read a single PCI config space register consists of two steps: | |
1142 | * | |
1143 | * Step-1: Set up PCI config space register read command, the command | |
1144 | * syntax is, | |
1145 | * | |
1146 | * echo 1 <where> <count> > pciCfg | |
1147 | * | |
1148 | * where, 1 is the iDiag command for PCI config space read, <where> is the | |
1149 | * offset from the beginning of the device's PCI config space to read from, | |
1150 | * and <count> is the size of PCI config space register data to read back, | |
1151 | * it will be 1 for reading a byte (8 bits), 2 for reading a word (16 bits | |
1152 | * or 2 bytes), or 4 for reading a dword (32 bits or 4 bytes). | |
1153 | * | |
1154 | * Setp-2: Perform the debugfs read operation to execute the idiag command | |
1155 | * set up in Step-1, | |
1156 | * | |
1157 | * cat pciCfg | |
1158 | * | |
1159 | * Examples: | |
1160 | * To read PCI device's vendor-id and device-id from PCI config space, | |
1161 | * | |
1162 | * echo 1 0 4 > pciCfg | |
1163 | * cat pciCfg | |
1164 | * | |
1165 | * To read PCI device's currnt command from config space, | |
1166 | * | |
1167 | * echo 1 4 2 > pciCfg | |
1168 | * cat pciCfg | |
1169 | * | |
1170 | * B) Browse through the entire 4K extended PCI config space also consists | |
1171 | * of two steps: | |
1172 | * | |
1173 | * Step-1: Set up PCI config space register browsing command, the command | |
1174 | * syntax is, | |
1175 | * | |
1176 | * echo 1 0 4096 > pciCfg | |
1177 | * | |
1178 | * where, 1 is the iDiag command for PCI config space read, 0 must be used | |
1179 | * as the offset for PCI config space register browse, and 4096 must be | |
1180 | * used as the count for PCI config space register browse. | |
1181 | * | |
1182 | * Step-2: Repeately issue the debugfs read operation to browse through | |
1183 | * the entire PCI config space registers: | |
1184 | * | |
1185 | * cat pciCfg | |
1186 | * cat pciCfg | |
1187 | * cat pciCfg | |
1188 | * ... | |
1189 | * | |
1190 | * When browsing to the end of the 4K PCI config space, the browse method | |
1191 | * shall wrap around to start reading from beginning again, and again... | |
1192 | * | |
1193 | * 2. For PCI config space register write access, it supports a single PCI | |
1194 | * config space register write in the size of a byte (8 bits), a word | |
1195 | * (16 bits), or a dword (32 bits). The command syntax is, | |
1196 | * | |
1197 | * echo 2 <where> <count> <value> > pciCfg | |
1198 | * | |
1199 | * where, 2 is the iDiag command for PCI config space write, <where> is | |
1200 | * the offset from the beginning of the device's PCI config space to write | |
1201 | * into, <count> is the size of data to write into the PCI config space, | |
1202 | * it will be 1 for writing a byte (8 bits), 2 for writing a word (16 bits | |
1203 | * or 2 bytes), or 4 for writing a dword (32 bits or 4 bytes), and <value> | |
1204 | * is the data to be written into the PCI config space register at the | |
1205 | * offset. | |
1206 | * | |
1207 | * Examples: | |
1208 | * To disable PCI device's interrupt assertion, | |
1209 | * | |
1210 | * 1) Read in device's PCI config space register command field <cmd>: | |
1211 | * | |
1212 | * echo 1 4 2 > pciCfg | |
1213 | * cat pciCfg | |
1214 | * | |
1215 | * 2) Set bit 10 (Interrupt Disable bit) in the <cmd>: | |
1216 | * | |
1217 | * <cmd> = <cmd> | (1 < 10) | |
1218 | * | |
1219 | * 3) Write the modified command back: | |
1220 | * | |
1221 | * echo 2 4 2 <cmd> > pciCfg | |
1222 | * | |
1223 | * 3. For PCI config space register set bits access, it supports a single PCI | |
1224 | * config space register set bits in the size of a byte (8 bits), a word | |
1225 | * (16 bits), or a dword (32 bits). The command syntax is, | |
1226 | * | |
1227 | * echo 3 <where> <count> <bitmask> > pciCfg | |
1228 | * | |
1229 | * where, 3 is the iDiag command for PCI config space set bits, <where> is | |
1230 | * the offset from the beginning of the device's PCI config space to set | |
1231 | * bits into, <count> is the size of the bitmask to set into the PCI config | |
1232 | * space, it will be 1 for setting a byte (8 bits), 2 for setting a word | |
1233 | * (16 bits or 2 bytes), or 4 for setting a dword (32 bits or 4 bytes), and | |
1234 | * <bitmask> is the bitmask, indicating the bits to be set into the PCI | |
1235 | * config space register at the offset. The logic performed to the content | |
1236 | * of the PCI config space register, regval, is, | |
1237 | * | |
1238 | * regval |= <bitmask> | |
1239 | * | |
1240 | * 4. For PCI config space register clear bits access, it supports a single | |
1241 | * PCI config space register clear bits in the size of a byte (8 bits), | |
1242 | * a word (16 bits), or a dword (32 bits). The command syntax is, | |
1243 | * | |
1244 | * echo 4 <where> <count> <bitmask> > pciCfg | |
1245 | * | |
1246 | * where, 4 is the iDiag command for PCI config space clear bits, <where> | |
1247 | * is the offset from the beginning of the device's PCI config space to | |
1248 | * clear bits from, <count> is the size of the bitmask to set into the PCI | |
1249 | * config space, it will be 1 for setting a byte (8 bits), 2 for setting | |
1250 | * a word(16 bits or 2 bytes), or 4 for setting a dword (32 bits or 4 | |
1251 | * bytes), and <bitmask> is the bitmask, indicating the bits to be cleared | |
1252 | * from the PCI config space register at the offset. the logic performed | |
1253 | * to the content of the PCI config space register, regval, is, | |
1254 | * | |
1255 | * regval &= ~<bitmask> | |
1256 | * | |
1257 | * Note, for all single register read, write, set bits, or clear bits access, | |
1258 | * the offset (<where>) must be aligned with the size of the data: | |
1259 | * | |
1260 | * For data size of byte (8 bits), the offset must be aligned to the byte | |
1261 | * boundary; for data size of word (16 bits), the offset must be aligned | |
1262 | * to the word boundary; while for data size of dword (32 bits), the offset | |
1263 | * must be aligned to the dword boundary. Otherwise, the interface will | |
1264 | * return the error: | |
1265 | * | |
1266 | * "-bash: echo: write error: Invalid argument". | |
1267 | * | |
1268 | * For example: | |
1269 | * | |
1270 | * echo 1 2 4 > pciCfg | |
1271 | * -bash: echo: write error: Invalid argument | |
1272 | * | |
1273 | * Note also, all of the numbers in the command fields for all read, write, | |
1274 | * set bits, and clear bits PCI config space register command fields can be | |
1275 | * either decimal or hex. | |
1276 | * | |
1277 | * For example, | |
1278 | * echo 1 0 4096 > pciCfg | |
1279 | * | |
1280 | * will be the same as | |
1281 | * echo 1 0 0x1000 > pciCfg | |
1282 | * | |
1283 | * And, | |
1284 | * echo 2 155 1 10 > pciCfg | |
1285 | * | |
1286 | * will be | |
1287 | * echo 2 0x9b 1 0xa > pciCfg | |
1288 | */ | |
1289 | ||
1290 | /** | |
1291 | * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space | |
1292 | * @buf: The pointer to the user space buffer. | |
1293 | * @nbytes: The number of bytes in the user space buffer. | |
1294 | * @idiag_cmd: pointer to the idiag command struct. | |
1295 | * | |
1296 | * This routine reads data from debugfs user space buffer and parses the | |
1297 | * buffer for getting the idiag command and arguments. The while space in | |
1298 | * between the set of data is used as the parsing separator. | |
1299 | * | |
1300 | * This routine returns 0 when successful, it returns proper error code | |
1301 | * back to the user space in error conditions. | |
1302 | */ | |
1303 | static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, | |
1304 | struct lpfc_idiag_cmd *idiag_cmd) | |
1305 | { | |
1306 | char mybuf[64]; | |
1307 | char *pbuf, *step_str; | |
1308 | int bsize, i; | |
1309 | ||
1310 | /* Protect copy from user */ | |
1311 | if (!access_ok(VERIFY_READ, buf, nbytes)) | |
1312 | return -EFAULT; | |
1313 | ||
1314 | memset(mybuf, 0, sizeof(mybuf)); | |
1315 | memset(idiag_cmd, 0, sizeof(*idiag_cmd)); | |
1316 | bsize = min(nbytes, (sizeof(mybuf)-1)); | |
1317 | ||
1318 | if (copy_from_user(mybuf, buf, bsize)) | |
1319 | return -EFAULT; | |
1320 | pbuf = &mybuf[0]; | |
1321 | step_str = strsep(&pbuf, "\t "); | |
1322 | ||
1323 | /* The opcode must present */ | |
1324 | if (!step_str) | |
1325 | return -EINVAL; | |
1326 | ||
1327 | idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); | |
1328 | if (idiag_cmd->opcode == 0) | |
1329 | return -EINVAL; | |
1330 | ||
1331 | for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { | |
1332 | step_str = strsep(&pbuf, "\t "); | |
1333 | if (!step_str) | |
1334 | return 0; | |
1335 | idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); | |
1336 | } | |
1337 | return 0; | |
1338 | } | |
1339 | ||
1340 | /** | |
1341 | * lpfc_idiag_open - idiag open debugfs | |
1342 | * @inode: The inode pointer that contains a pointer to phba. | |
1343 | * @file: The file pointer to attach the file operation. | |
1344 | * | |
1345 | * Description: | |
1346 | * This routine is the entry point for the debugfs open file operation. It | |
1347 | * gets the reference to phba from the i_private field in @inode, it then | |
1348 | * allocates buffer for the file operation, performs the necessary PCI config | |
1349 | * space read into the allocated buffer according to the idiag user command | |
1350 | * setup, and then returns a pointer to buffer in the private_data field in | |
1351 | * @file. | |
1352 | * | |
1353 | * Returns: | |
1354 | * This function returns zero if successful. On error it will return an | |
1355 | * negative error value. | |
1356 | **/ | |
1357 | static int | |
1358 | lpfc_idiag_open(struct inode *inode, struct file *file) | |
1359 | { | |
1360 | struct lpfc_debug *debug; | |
1361 | ||
1362 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1363 | if (!debug) | |
1364 | return -ENOMEM; | |
1365 | ||
1366 | debug->i_private = inode->i_private; | |
1367 | debug->buffer = NULL; | |
1368 | file->private_data = debug; | |
1369 | ||
1370 | return 0; | |
1371 | } | |
1372 | ||
1373 | /** | |
1374 | * lpfc_idiag_release - Release idiag access file operation | |
1375 | * @inode: The inode pointer that contains a vport pointer. (unused) | |
1376 | * @file: The file pointer that contains the buffer to release. | |
1377 | * | |
1378 | * Description: | |
1379 | * This routine is the generic release routine for the idiag access file | |
1380 | * operation, it frees the buffer that was allocated when the debugfs file | |
1381 | * was opened. | |
1382 | * | |
1383 | * Returns: | |
1384 | * This function returns zero. | |
1385 | **/ | |
1386 | static int | |
1387 | lpfc_idiag_release(struct inode *inode, struct file *file) | |
1388 | { | |
1389 | struct lpfc_debug *debug = file->private_data; | |
1390 | ||
1391 | /* Free the buffers to the file operation */ | |
1392 | kfree(debug->buffer); | |
1393 | kfree(debug); | |
1394 | ||
1395 | return 0; | |
1396 | } | |
1397 | ||
1398 | /** | |
1399 | * lpfc_idiag_cmd_release - Release idiag cmd access file operation | |
1400 | * @inode: The inode pointer that contains a vport pointer. (unused) | |
1401 | * @file: The file pointer that contains the buffer to release. | |
1402 | * | |
1403 | * Description: | |
1404 | * This routine frees the buffer that was allocated when the debugfs file | |
1405 | * was opened. It also reset the fields in the idiag command struct in the | |
1406 | * case the command is not continuous browsing of the data structure. | |
1407 | * | |
1408 | * Returns: | |
1409 | * This function returns zero. | |
1410 | **/ | |
1411 | static int | |
1412 | lpfc_idiag_cmd_release(struct inode *inode, struct file *file) | |
1413 | { | |
1414 | struct lpfc_debug *debug = file->private_data; | |
1415 | ||
1416 | /* Read PCI config register, if not read all, clear command fields */ | |
1417 | if ((debug->op == LPFC_IDIAG_OP_RD) && | |
1418 | (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD)) | |
1419 | if ((idiag.cmd.data[1] == sizeof(uint8_t)) || | |
1420 | (idiag.cmd.data[1] == sizeof(uint16_t)) || | |
1421 | (idiag.cmd.data[1] == sizeof(uint32_t))) | |
1422 | memset(&idiag, 0, sizeof(idiag)); | |
1423 | ||
1424 | /* Write PCI config register, clear command fields */ | |
1425 | if ((debug->op == LPFC_IDIAG_OP_WR) && | |
1426 | (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)) | |
1427 | memset(&idiag, 0, sizeof(idiag)); | |
1428 | ||
1429 | /* Free the buffers to the file operation */ | |
1430 | kfree(debug->buffer); | |
1431 | kfree(debug); | |
1432 | ||
1433 | return 0; | |
1434 | } | |
1435 | ||
1436 | /** | |
1437 | * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg | |
1438 | * @file: The file pointer to read from. | |
1439 | * @buf: The buffer to copy the data to. | |
1440 | * @nbytes: The number of bytes to read. | |
1441 | * @ppos: The position in the file to start reading from. | |
1442 | * | |
1443 | * Description: | |
1444 | * This routine reads data from the @phba pci config space according to the | |
1445 | * idiag command, and copies to user @buf. Depending on the PCI config space | |
1446 | * read command setup, it does either a single register read of a byte | |
1447 | * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all | |
1448 | * registers from the 4K extended PCI config space. | |
1449 | * | |
1450 | * Returns: | |
1451 | * This function returns the amount of data that was read (this could be less | |
1452 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1453 | **/ | |
1454 | static ssize_t | |
1455 | lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, | |
1456 | loff_t *ppos) | |
1457 | { | |
1458 | struct lpfc_debug *debug = file->private_data; | |
1459 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1460 | int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; | |
1461 | int where, count; | |
1462 | char *pbuffer; | |
1463 | struct pci_dev *pdev; | |
1464 | uint32_t u32val; | |
1465 | uint16_t u16val; | |
1466 | uint8_t u8val; | |
1467 | ||
1468 | pdev = phba->pcidev; | |
1469 | if (!pdev) | |
1470 | return 0; | |
1471 | ||
1472 | /* This is a user read operation */ | |
1473 | debug->op = LPFC_IDIAG_OP_RD; | |
1474 | ||
1475 | if (!debug->buffer) | |
1476 | debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); | |
1477 | if (!debug->buffer) | |
1478 | return 0; | |
1479 | pbuffer = debug->buffer; | |
1480 | ||
1481 | if (*ppos) | |
1482 | return 0; | |
1483 | ||
1484 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { | |
1485 | where = idiag.cmd.data[0]; | |
1486 | count = idiag.cmd.data[1]; | |
1487 | } else | |
1488 | return 0; | |
1489 | ||
1490 | /* Read single PCI config space register */ | |
1491 | switch (count) { | |
1492 | case SIZE_U8: /* byte (8 bits) */ | |
1493 | pci_read_config_byte(pdev, where, &u8val); | |
1494 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1495 | "%03x: %02x\n", where, u8val); | |
1496 | break; | |
1497 | case SIZE_U16: /* word (16 bits) */ | |
1498 | pci_read_config_word(pdev, where, &u16val); | |
1499 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1500 | "%03x: %04x\n", where, u16val); | |
1501 | break; | |
1502 | case SIZE_U32: /* double word (32 bits) */ | |
1503 | pci_read_config_dword(pdev, where, &u32val); | |
1504 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1505 | "%03x: %08x\n", where, u32val); | |
1506 | break; | |
1507 | case LPFC_PCI_CFG_SIZE: /* browse all */ | |
1508 | goto pcicfg_browse; | |
1509 | break; | |
1510 | default: | |
1511 | /* illegal count */ | |
1512 | len = 0; | |
1513 | break; | |
1514 | } | |
1515 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1516 | ||
1517 | pcicfg_browse: | |
1518 | ||
1519 | /* Browse all PCI config space registers */ | |
1520 | offset_label = idiag.offset.last_rd; | |
1521 | offset = offset_label; | |
1522 | ||
1523 | /* Read PCI config space */ | |
1524 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1525 | "%03x: ", offset_label); | |
1526 | while (index > 0) { | |
1527 | pci_read_config_dword(pdev, offset, &u32val); | |
1528 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1529 | "%08x ", u32val); | |
1530 | offset += sizeof(uint32_t); | |
1531 | index -= sizeof(uint32_t); | |
1532 | if (!index) | |
1533 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1534 | "\n"); | |
1535 | else if (!(index % (8 * sizeof(uint32_t)))) { | |
1536 | offset_label += (8 * sizeof(uint32_t)); | |
1537 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1538 | "\n%03x: ", offset_label); | |
1539 | } | |
1540 | } | |
1541 | ||
1542 | /* Set up the offset for next portion of pci cfg read */ | |
1543 | idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; | |
1544 | if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) | |
1545 | idiag.offset.last_rd = 0; | |
1546 | ||
1547 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1548 | } | |
1549 | ||
1550 | /** | |
1551 | * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands | |
1552 | * @file: The file pointer to read from. | |
1553 | * @buf: The buffer to copy the user data from. | |
1554 | * @nbytes: The number of bytes to get. | |
1555 | * @ppos: The position in the file to start reading from. | |
1556 | * | |
1557 | * This routine get the debugfs idiag command struct from user space and | |
1558 | * then perform the syntax check for PCI config space read or write command | |
1559 | * accordingly. In the case of PCI config space read command, it sets up | |
1560 | * the command in the idiag command struct for the debugfs read operation. | |
1561 | * In the case of PCI config space write operation, it executes the write | |
1562 | * operation into the PCI config space accordingly. | |
1563 | * | |
1564 | * It returns the @nbytges passing in from debugfs user space when successful. | |
1565 | * In case of error conditions, it returns proper error code back to the user | |
1566 | * space. | |
1567 | */ | |
1568 | static ssize_t | |
1569 | lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, | |
1570 | size_t nbytes, loff_t *ppos) | |
1571 | { | |
1572 | struct lpfc_debug *debug = file->private_data; | |
1573 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1574 | uint32_t where, value, count; | |
1575 | uint32_t u32val; | |
1576 | uint16_t u16val; | |
1577 | uint8_t u8val; | |
1578 | struct pci_dev *pdev; | |
1579 | int rc; | |
1580 | ||
1581 | pdev = phba->pcidev; | |
1582 | if (!pdev) | |
1583 | return -EFAULT; | |
1584 | ||
1585 | /* This is a user write operation */ | |
1586 | debug->op = LPFC_IDIAG_OP_WR; | |
1587 | ||
1588 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
1589 | if (rc) | |
1590 | return rc; | |
1591 | ||
1592 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { | |
1593 | /* Read command from PCI config space, set up command fields */ | |
1594 | where = idiag.cmd.data[0]; | |
1595 | count = idiag.cmd.data[1]; | |
1596 | if (count == LPFC_PCI_CFG_SIZE) { | |
1597 | if (where != 0) | |
1598 | goto error_out; | |
1599 | } else if ((count != sizeof(uint8_t)) && | |
1600 | (count != sizeof(uint16_t)) && | |
1601 | (count != sizeof(uint32_t))) | |
1602 | goto error_out; | |
1603 | if (count == sizeof(uint8_t)) { | |
1604 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) | |
1605 | goto error_out; | |
1606 | if (where % sizeof(uint8_t)) | |
1607 | goto error_out; | |
1608 | } | |
1609 | if (count == sizeof(uint16_t)) { | |
1610 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) | |
1611 | goto error_out; | |
1612 | if (where % sizeof(uint16_t)) | |
1613 | goto error_out; | |
1614 | } | |
1615 | if (count == sizeof(uint32_t)) { | |
1616 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) | |
1617 | goto error_out; | |
1618 | if (where % sizeof(uint32_t)) | |
1619 | goto error_out; | |
1620 | } | |
1621 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || | |
1622 | idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || | |
1623 | idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
1624 | /* Write command to PCI config space, read-modify-write */ | |
1625 | where = idiag.cmd.data[0]; | |
1626 | count = idiag.cmd.data[1]; | |
1627 | value = idiag.cmd.data[2]; | |
1628 | /* Sanity checks */ | |
1629 | if ((count != sizeof(uint8_t)) && | |
1630 | (count != sizeof(uint16_t)) && | |
1631 | (count != sizeof(uint32_t))) | |
1632 | goto error_out; | |
1633 | if (count == sizeof(uint8_t)) { | |
1634 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) | |
1635 | goto error_out; | |
1636 | if (where % sizeof(uint8_t)) | |
1637 | goto error_out; | |
1638 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
1639 | pci_write_config_byte(pdev, where, | |
1640 | (uint8_t)value); | |
1641 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
1642 | rc = pci_read_config_byte(pdev, where, &u8val); | |
1643 | if (!rc) { | |
1644 | u8val |= (uint8_t)value; | |
1645 | pci_write_config_byte(pdev, where, | |
1646 | u8val); | |
1647 | } | |
1648 | } | |
1649 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
1650 | rc = pci_read_config_byte(pdev, where, &u8val); | |
1651 | if (!rc) { | |
1652 | u8val &= (uint8_t)(~value); | |
1653 | pci_write_config_byte(pdev, where, | |
1654 | u8val); | |
1655 | } | |
1656 | } | |
1657 | } | |
1658 | if (count == sizeof(uint16_t)) { | |
1659 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) | |
1660 | goto error_out; | |
1661 | if (where % sizeof(uint16_t)) | |
1662 | goto error_out; | |
1663 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
1664 | pci_write_config_word(pdev, where, | |
1665 | (uint16_t)value); | |
1666 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
1667 | rc = pci_read_config_word(pdev, where, &u16val); | |
1668 | if (!rc) { | |
1669 | u16val |= (uint16_t)value; | |
1670 | pci_write_config_word(pdev, where, | |
1671 | u16val); | |
1672 | } | |
1673 | } | |
1674 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
1675 | rc = pci_read_config_word(pdev, where, &u16val); | |
1676 | if (!rc) { | |
1677 | u16val &= (uint16_t)(~value); | |
1678 | pci_write_config_word(pdev, where, | |
1679 | u16val); | |
1680 | } | |
1681 | } | |
1682 | } | |
1683 | if (count == sizeof(uint32_t)) { | |
1684 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) | |
1685 | goto error_out; | |
1686 | if (where % sizeof(uint32_t)) | |
1687 | goto error_out; | |
1688 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
1689 | pci_write_config_dword(pdev, where, value); | |
1690 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
1691 | rc = pci_read_config_dword(pdev, where, | |
1692 | &u32val); | |
1693 | if (!rc) { | |
1694 | u32val |= value; | |
1695 | pci_write_config_dword(pdev, where, | |
1696 | u32val); | |
1697 | } | |
1698 | } | |
1699 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
1700 | rc = pci_read_config_dword(pdev, where, | |
1701 | &u32val); | |
1702 | if (!rc) { | |
1703 | u32val &= ~value; | |
1704 | pci_write_config_dword(pdev, where, | |
1705 | u32val); | |
1706 | } | |
1707 | } | |
1708 | } | |
1709 | } else | |
1710 | /* All other opecodes are illegal for now */ | |
1711 | goto error_out; | |
1712 | ||
1713 | return nbytes; | |
1714 | error_out: | |
1715 | memset(&idiag, 0, sizeof(idiag)); | |
1716 | return -EINVAL; | |
1717 | } | |
1718 | ||
1719 | /** | |
1720 | * lpfc_idiag_queinfo_read - idiag debugfs read queue information | |
1721 | * @file: The file pointer to read from. | |
1722 | * @buf: The buffer to copy the data to. | |
1723 | * @nbytes: The number of bytes to read. | |
1724 | * @ppos: The position in the file to start reading from. | |
1725 | * | |
1726 | * Description: | |
1727 | * This routine reads data from the @phba SLI4 PCI function queue information, | |
1728 | * and copies to user @buf. | |
1729 | * | |
1730 | * Returns: | |
1731 | * This function returns the amount of data that was read (this could be less | |
1732 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1733 | **/ | |
1734 | static ssize_t | |
1735 | lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, | |
1736 | loff_t *ppos) | |
1737 | { | |
1738 | struct lpfc_debug *debug = file->private_data; | |
1739 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1740 | int len = 0, fcp_qidx; | |
1741 | char *pbuffer; | |
1742 | ||
1743 | if (!debug->buffer) | |
1744 | debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); | |
1745 | if (!debug->buffer) | |
1746 | return 0; | |
1747 | pbuffer = debug->buffer; | |
1748 | ||
1749 | if (*ppos) | |
1750 | return 0; | |
1751 | ||
1752 | /* Get slow-path event queue information */ | |
1753 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1754 | "Slow-path EQ information:\n"); | |
1755 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1756 | "\tID [%02d], EQE-COUNT [%04d], " | |
1757 | "HOST-INDEX [%04x], PORT-INDEX [%04x]\n\n", | |
1758 | phba->sli4_hba.sp_eq->queue_id, | |
1759 | phba->sli4_hba.sp_eq->entry_count, | |
1760 | phba->sli4_hba.sp_eq->host_index, | |
1761 | phba->sli4_hba.sp_eq->hba_index); | |
1762 | ||
1763 | /* Get fast-path event queue information */ | |
1764 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1765 | "Fast-path EQ information:\n"); | |
1766 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) { | |
1767 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1768 | "\tID [%02d], EQE-COUNT [%04d], " | |
1769 | "HOST-INDEX [%04x], PORT-INDEX [%04x]\n", | |
1770 | phba->sli4_hba.fp_eq[fcp_qidx]->queue_id, | |
1771 | phba->sli4_hba.fp_eq[fcp_qidx]->entry_count, | |
1772 | phba->sli4_hba.fp_eq[fcp_qidx]->host_index, | |
1773 | phba->sli4_hba.fp_eq[fcp_qidx]->hba_index); | |
1774 | } | |
1775 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
1776 | ||
1777 | /* Get mailbox complete queue information */ | |
1778 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1779 | "Mailbox CQ information:\n"); | |
1780 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1781 | "\t\tAssociated EQ-ID [%02d]:\n", | |
1782 | phba->sli4_hba.mbx_cq->assoc_qid); | |
1783 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1784 | "\tID [%02d], CQE-COUNT [%04d], " | |
1785 | "HOST-INDEX [%04x], PORT-INDEX [%04x]\n\n", | |
1786 | phba->sli4_hba.mbx_cq->queue_id, | |
1787 | phba->sli4_hba.mbx_cq->entry_count, | |
1788 | phba->sli4_hba.mbx_cq->host_index, | |
1789 | phba->sli4_hba.mbx_cq->hba_index); | |
1790 | ||
1791 | /* Get slow-path complete queue information */ | |
1792 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1793 | "Slow-path CQ information:\n"); | |
1794 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1795 | "\t\tAssociated EQ-ID [%02d]:\n", | |
1796 | phba->sli4_hba.els_cq->assoc_qid); | |
1797 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1798 | "\tID [%02d], CQE-COUNT [%04d], " | |
1799 | "HOST-INDEX [%04x], PORT-INDEX [%04x]\n\n", | |
1800 | phba->sli4_hba.els_cq->queue_id, | |
1801 | phba->sli4_hba.els_cq->entry_count, | |
1802 | phba->sli4_hba.els_cq->host_index, | |
1803 | phba->sli4_hba.els_cq->hba_index); | |
1804 | ||
1805 | /* Get fast-path complete queue information */ | |
1806 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1807 | "Fast-path CQ information:\n"); | |
1808 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) { | |
1809 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1810 | "\t\tAssociated EQ-ID [%02d]:\n", | |
1811 | phba->sli4_hba.fcp_cq[fcp_qidx]->assoc_qid); | |
1812 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1813 | "\tID [%02d], EQE-COUNT [%04d], " | |
1814 | "HOST-INDEX [%04x], PORT-INDEX [%04x]\n", | |
1815 | phba->sli4_hba.fcp_cq[fcp_qidx]->queue_id, | |
1816 | phba->sli4_hba.fcp_cq[fcp_qidx]->entry_count, | |
1817 | phba->sli4_hba.fcp_cq[fcp_qidx]->host_index, | |
1818 | phba->sli4_hba.fcp_cq[fcp_qidx]->hba_index); | |
1819 | } | |
1820 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
1821 | ||
1822 | /* Get mailbox queue information */ | |
1823 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1824 | "Mailbox MQ information:\n"); | |
1825 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1826 | "\t\tAssociated CQ-ID [%02d]:\n", | |
1827 | phba->sli4_hba.mbx_wq->assoc_qid); | |
1828 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1829 | "\tID [%02d], MQE-COUNT [%04d], " | |
1830 | "HOST-INDEX [%04x], PORT-INDEX [%04x]\n\n", | |
1831 | phba->sli4_hba.mbx_wq->queue_id, | |
1832 | phba->sli4_hba.mbx_wq->entry_count, | |
1833 | phba->sli4_hba.mbx_wq->host_index, | |
1834 | phba->sli4_hba.mbx_wq->hba_index); | |
1835 | ||
1836 | /* Get slow-path work queue information */ | |
1837 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1838 | "Slow-path WQ information:\n"); | |
1839 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1840 | "\t\tAssociated CQ-ID [%02d]:\n", | |
1841 | phba->sli4_hba.els_wq->assoc_qid); | |
1842 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1843 | "\tID [%02d], WQE-COUNT [%04d], " | |
1844 | "HOST-INDEX [%04x], PORT-INDEX [%04x]\n\n", | |
1845 | phba->sli4_hba.els_wq->queue_id, | |
1846 | phba->sli4_hba.els_wq->entry_count, | |
1847 | phba->sli4_hba.els_wq->host_index, | |
1848 | phba->sli4_hba.els_wq->hba_index); | |
1849 | ||
1850 | /* Get fast-path work queue information */ | |
1851 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1852 | "Fast-path WQ information:\n"); | |
1853 | for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) { | |
1854 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1855 | "\t\tAssociated CQ-ID [%02d]:\n", | |
1856 | phba->sli4_hba.fcp_wq[fcp_qidx]->assoc_qid); | |
1857 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1858 | "\tID [%02d], WQE-COUNT [%04d], " | |
1859 | "HOST-INDEX [%04x], PORT-INDEX [%04x]\n", | |
1860 | phba->sli4_hba.fcp_wq[fcp_qidx]->queue_id, | |
1861 | phba->sli4_hba.fcp_wq[fcp_qidx]->entry_count, | |
1862 | phba->sli4_hba.fcp_wq[fcp_qidx]->host_index, | |
1863 | phba->sli4_hba.fcp_wq[fcp_qidx]->hba_index); | |
1864 | } | |
1865 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
1866 | ||
1867 | /* Get receive queue information */ | |
1868 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1869 | "Slow-path RQ information:\n"); | |
1870 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1871 | "\t\tAssociated CQ-ID [%02d]:\n", | |
1872 | phba->sli4_hba.hdr_rq->assoc_qid); | |
1873 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1874 | "\tID [%02d], RHQE-COUNT [%04d], " | |
1875 | "HOST-INDEX [%04x], PORT-INDEX [%04x]\n", | |
1876 | phba->sli4_hba.hdr_rq->queue_id, | |
1877 | phba->sli4_hba.hdr_rq->entry_count, | |
1878 | phba->sli4_hba.hdr_rq->host_index, | |
1879 | phba->sli4_hba.hdr_rq->hba_index); | |
1880 | len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
1881 | "\tID [%02d], RDQE-COUNT [%04d], " | |
1882 | "HOST-INDEX [%04x], PORT-INDEX [%04x]\n", | |
1883 | phba->sli4_hba.dat_rq->queue_id, | |
1884 | phba->sli4_hba.dat_rq->entry_count, | |
1885 | phba->sli4_hba.dat_rq->host_index, | |
1886 | phba->sli4_hba.dat_rq->hba_index); | |
1887 | ||
1888 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1889 | } | |
1890 | ||
858c9f6c | 1891 | #undef lpfc_debugfs_op_disc_trc |
71fa7421 | 1892 | static const struct file_operations lpfc_debugfs_op_disc_trc = { |
858c9f6c JS |
1893 | .owner = THIS_MODULE, |
1894 | .open = lpfc_debugfs_disc_trc_open, | |
1895 | .llseek = lpfc_debugfs_lseek, | |
1896 | .read = lpfc_debugfs_read, | |
1897 | .release = lpfc_debugfs_release, | |
1898 | }; | |
1899 | ||
1900 | #undef lpfc_debugfs_op_nodelist | |
71fa7421 | 1901 | static const struct file_operations lpfc_debugfs_op_nodelist = { |
858c9f6c JS |
1902 | .owner = THIS_MODULE, |
1903 | .open = lpfc_debugfs_nodelist_open, | |
1904 | .llseek = lpfc_debugfs_lseek, | |
1905 | .read = lpfc_debugfs_read, | |
1906 | .release = lpfc_debugfs_release, | |
1907 | }; | |
1908 | ||
78b2d852 | 1909 | #undef lpfc_debugfs_op_hbqinfo |
71fa7421 | 1910 | static const struct file_operations lpfc_debugfs_op_hbqinfo = { |
78b2d852 JS |
1911 | .owner = THIS_MODULE, |
1912 | .open = lpfc_debugfs_hbqinfo_open, | |
1913 | .llseek = lpfc_debugfs_lseek, | |
1914 | .read = lpfc_debugfs_read, | |
1915 | .release = lpfc_debugfs_release, | |
1916 | }; | |
1917 | ||
c95d6c6c | 1918 | #undef lpfc_debugfs_op_dumpHBASlim |
71fa7421 | 1919 | static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { |
c95d6c6c JS |
1920 | .owner = THIS_MODULE, |
1921 | .open = lpfc_debugfs_dumpHBASlim_open, | |
1922 | .llseek = lpfc_debugfs_lseek, | |
1923 | .read = lpfc_debugfs_read, | |
1924 | .release = lpfc_debugfs_release, | |
1925 | }; | |
1926 | ||
1927 | #undef lpfc_debugfs_op_dumpHostSlim | |
71fa7421 | 1928 | static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { |
a58cbd52 | 1929 | .owner = THIS_MODULE, |
c95d6c6c | 1930 | .open = lpfc_debugfs_dumpHostSlim_open, |
a58cbd52 JS |
1931 | .llseek = lpfc_debugfs_lseek, |
1932 | .read = lpfc_debugfs_read, | |
1933 | .release = lpfc_debugfs_release, | |
1934 | }; | |
1935 | ||
e2a0a9d6 | 1936 | #undef lpfc_debugfs_op_dumpData |
71fa7421 | 1937 | static const struct file_operations lpfc_debugfs_op_dumpData = { |
e2a0a9d6 JS |
1938 | .owner = THIS_MODULE, |
1939 | .open = lpfc_debugfs_dumpData_open, | |
1940 | .llseek = lpfc_debugfs_lseek, | |
1941 | .read = lpfc_debugfs_read, | |
1942 | .write = lpfc_debugfs_dumpDataDif_write, | |
1943 | .release = lpfc_debugfs_dumpDataDif_release, | |
1944 | }; | |
1945 | ||
1946 | #undef lpfc_debugfs_op_dumpDif | |
71fa7421 | 1947 | static const struct file_operations lpfc_debugfs_op_dumpDif = { |
e2a0a9d6 JS |
1948 | .owner = THIS_MODULE, |
1949 | .open = lpfc_debugfs_dumpDif_open, | |
1950 | .llseek = lpfc_debugfs_lseek, | |
1951 | .read = lpfc_debugfs_read, | |
1952 | .write = lpfc_debugfs_dumpDataDif_write, | |
1953 | .release = lpfc_debugfs_dumpDataDif_release, | |
1954 | }; | |
1955 | ||
a58cbd52 | 1956 | #undef lpfc_debugfs_op_slow_ring_trc |
71fa7421 | 1957 | static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { |
a58cbd52 JS |
1958 | .owner = THIS_MODULE, |
1959 | .open = lpfc_debugfs_slow_ring_trc_open, | |
1960 | .llseek = lpfc_debugfs_lseek, | |
1961 | .read = lpfc_debugfs_read, | |
1962 | .release = lpfc_debugfs_release, | |
1963 | }; | |
1964 | ||
858c9f6c JS |
1965 | static struct dentry *lpfc_debugfs_root = NULL; |
1966 | static atomic_t lpfc_debugfs_hba_count; | |
2a622bfb JS |
1967 | |
1968 | /* | |
1969 | * File operations for the iDiag debugfs | |
1970 | */ | |
1971 | #undef lpfc_idiag_op_pciCfg | |
1972 | static const struct file_operations lpfc_idiag_op_pciCfg = { | |
1973 | .owner = THIS_MODULE, | |
1974 | .open = lpfc_idiag_open, | |
1975 | .llseek = lpfc_debugfs_lseek, | |
1976 | .read = lpfc_idiag_pcicfg_read, | |
1977 | .write = lpfc_idiag_pcicfg_write, | |
1978 | .release = lpfc_idiag_cmd_release, | |
1979 | }; | |
1980 | ||
1981 | #undef lpfc_idiag_op_queInfo | |
1982 | static const struct file_operations lpfc_idiag_op_queInfo = { | |
1983 | .owner = THIS_MODULE, | |
1984 | .open = lpfc_idiag_open, | |
1985 | .read = lpfc_idiag_queinfo_read, | |
1986 | .release = lpfc_idiag_release, | |
1987 | }; | |
1988 | ||
858c9f6c JS |
1989 | #endif |
1990 | ||
e59058c4 | 1991 | /** |
3621a710 | 1992 | * lpfc_debugfs_initialize - Initialize debugfs for a vport |
e59058c4 JS |
1993 | * @vport: The vport pointer to initialize. |
1994 | * | |
1995 | * Description: | |
1996 | * When Debugfs is configured this routine sets up the lpfc debugfs file system. | |
1997 | * If not already created, this routine will create the lpfc directory, and | |
1998 | * lpfcX directory (for this HBA), and vportX directory for this vport. It will | |
1999 | * also create each file used to access lpfc specific debugfs information. | |
2000 | **/ | |
858c9f6c JS |
2001 | inline void |
2002 | lpfc_debugfs_initialize(struct lpfc_vport *vport) | |
2003 | { | |
923e4b6a | 2004 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
858c9f6c JS |
2005 | struct lpfc_hba *phba = vport->phba; |
2006 | char name[64]; | |
2007 | uint32_t num, i; | |
2008 | ||
2009 | if (!lpfc_debugfs_enable) | |
2010 | return; | |
2011 | ||
a58cbd52 | 2012 | /* Setup lpfc root directory */ |
858c9f6c JS |
2013 | if (!lpfc_debugfs_root) { |
2014 | lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); | |
2015 | atomic_set(&lpfc_debugfs_hba_count, 0); | |
a58cbd52 | 2016 | if (!lpfc_debugfs_root) { |
e8b62011 | 2017 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 2018 | "0408 Cannot create debugfs root\n"); |
858c9f6c | 2019 | goto debug_failed; |
a58cbd52 | 2020 | } |
858c9f6c | 2021 | } |
a58cbd52 JS |
2022 | if (!lpfc_debugfs_start_time) |
2023 | lpfc_debugfs_start_time = jiffies; | |
2024 | ||
2a622bfb JS |
2025 | /* Setup funcX directory for specific HBA PCI function */ |
2026 | snprintf(name, sizeof(name), "fn%d", phba->brd_no); | |
858c9f6c JS |
2027 | if (!phba->hba_debugfs_root) { |
2028 | phba->hba_debugfs_root = | |
2029 | debugfs_create_dir(name, lpfc_debugfs_root); | |
a58cbd52 | 2030 | if (!phba->hba_debugfs_root) { |
e8b62011 | 2031 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 2032 | "0412 Cannot create debugfs hba\n"); |
858c9f6c | 2033 | goto debug_failed; |
a58cbd52 | 2034 | } |
858c9f6c JS |
2035 | atomic_inc(&lpfc_debugfs_hba_count); |
2036 | atomic_set(&phba->debugfs_vport_count, 0); | |
a58cbd52 | 2037 | |
78b2d852 JS |
2038 | /* Setup hbqinfo */ |
2039 | snprintf(name, sizeof(name), "hbqinfo"); | |
2040 | phba->debug_hbqinfo = | |
2041 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
2042 | phba->hba_debugfs_root, | |
2043 | phba, &lpfc_debugfs_op_hbqinfo); | |
2044 | if (!phba->debug_hbqinfo) { | |
2045 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
d7c255b2 | 2046 | "0411 Cannot create debugfs hbqinfo\n"); |
78b2d852 JS |
2047 | goto debug_failed; |
2048 | } | |
2049 | ||
c95d6c6c | 2050 | /* Setup dumpHBASlim */ |
2a622bfb JS |
2051 | if (phba->sli_rev < LPFC_SLI_REV4) { |
2052 | snprintf(name, sizeof(name), "dumpHBASlim"); | |
2053 | phba->debug_dumpHBASlim = | |
2054 | debugfs_create_file(name, | |
2055 | S_IFREG|S_IRUGO|S_IWUSR, | |
2056 | phba->hba_debugfs_root, | |
2057 | phba, &lpfc_debugfs_op_dumpHBASlim); | |
2058 | if (!phba->debug_dumpHBASlim) { | |
2059 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
2060 | "0413 Cannot create debugfs " | |
2061 | "dumpHBASlim\n"); | |
2062 | goto debug_failed; | |
2063 | } | |
2064 | } else | |
2065 | phba->debug_dumpHBASlim = NULL; | |
c95d6c6c JS |
2066 | |
2067 | /* Setup dumpHostSlim */ | |
2a622bfb JS |
2068 | if (phba->sli_rev < LPFC_SLI_REV4) { |
2069 | snprintf(name, sizeof(name), "dumpHostSlim"); | |
2070 | phba->debug_dumpHostSlim = | |
2071 | debugfs_create_file(name, | |
2072 | S_IFREG|S_IRUGO|S_IWUSR, | |
2073 | phba->hba_debugfs_root, | |
2074 | phba, &lpfc_debugfs_op_dumpHostSlim); | |
2075 | if (!phba->debug_dumpHostSlim) { | |
2076 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
2077 | "0414 Cannot create debugfs " | |
2078 | "dumpHostSlim\n"); | |
2079 | goto debug_failed; | |
2080 | } | |
2081 | } else | |
2082 | phba->debug_dumpHBASlim = NULL; | |
a58cbd52 | 2083 | |
e2a0a9d6 JS |
2084 | /* Setup dumpData */ |
2085 | snprintf(name, sizeof(name), "dumpData"); | |
2086 | phba->debug_dumpData = | |
2087 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
2088 | phba->hba_debugfs_root, | |
2089 | phba, &lpfc_debugfs_op_dumpData); | |
2090 | if (!phba->debug_dumpData) { | |
2091 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
2092 | "0800 Cannot create debugfs dumpData\n"); | |
2093 | goto debug_failed; | |
2094 | } | |
2095 | ||
2096 | /* Setup dumpDif */ | |
2097 | snprintf(name, sizeof(name), "dumpDif"); | |
2098 | phba->debug_dumpDif = | |
2099 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
2100 | phba->hba_debugfs_root, | |
2101 | phba, &lpfc_debugfs_op_dumpDif); | |
2102 | if (!phba->debug_dumpDif) { | |
2103 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
2104 | "0801 Cannot create debugfs dumpDif\n"); | |
2105 | goto debug_failed; | |
2106 | } | |
2107 | ||
a58cbd52 JS |
2108 | /* Setup slow ring trace */ |
2109 | if (lpfc_debugfs_max_slow_ring_trc) { | |
2110 | num = lpfc_debugfs_max_slow_ring_trc - 1; | |
2111 | if (num & lpfc_debugfs_max_slow_ring_trc) { | |
2112 | /* Change to be a power of 2 */ | |
2113 | num = lpfc_debugfs_max_slow_ring_trc; | |
2114 | i = 0; | |
2115 | while (num > 1) { | |
2116 | num = num >> 1; | |
2117 | i++; | |
2118 | } | |
2119 | lpfc_debugfs_max_slow_ring_trc = (1 << i); | |
2120 | printk(KERN_ERR | |
e8b62011 JS |
2121 | "lpfc_debugfs_max_disc_trc changed to " |
2122 | "%d\n", lpfc_debugfs_max_disc_trc); | |
a58cbd52 JS |
2123 | } |
2124 | } | |
2125 | ||
a58cbd52 JS |
2126 | snprintf(name, sizeof(name), "slow_ring_trace"); |
2127 | phba->debug_slow_ring_trc = | |
2128 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
2129 | phba->hba_debugfs_root, | |
2130 | phba, &lpfc_debugfs_op_slow_ring_trc); | |
2131 | if (!phba->debug_slow_ring_trc) { | |
e8b62011 | 2132 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 2133 | "0415 Cannot create debugfs " |
e8b62011 | 2134 | "slow_ring_trace\n"); |
a58cbd52 JS |
2135 | goto debug_failed; |
2136 | } | |
2137 | if (!phba->slow_ring_trc) { | |
2138 | phba->slow_ring_trc = kmalloc( | |
2139 | (sizeof(struct lpfc_debugfs_trc) * | |
2140 | lpfc_debugfs_max_slow_ring_trc), | |
2141 | GFP_KERNEL); | |
2142 | if (!phba->slow_ring_trc) { | |
e8b62011 | 2143 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 2144 | "0416 Cannot create debugfs " |
e8b62011 | 2145 | "slow_ring buffer\n"); |
a58cbd52 JS |
2146 | goto debug_failed; |
2147 | } | |
2148 | atomic_set(&phba->slow_ring_trc_cnt, 0); | |
2149 | memset(phba->slow_ring_trc, 0, | |
2150 | (sizeof(struct lpfc_debugfs_trc) * | |
2151 | lpfc_debugfs_max_slow_ring_trc)); | |
2152 | } | |
858c9f6c JS |
2153 | } |
2154 | ||
2155 | snprintf(name, sizeof(name), "vport%d", vport->vpi); | |
2156 | if (!vport->vport_debugfs_root) { | |
2157 | vport->vport_debugfs_root = | |
2158 | debugfs_create_dir(name, phba->hba_debugfs_root); | |
a58cbd52 | 2159 | if (!vport->vport_debugfs_root) { |
e8b62011 | 2160 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6a9c52cf | 2161 | "0417 Cant create debugfs\n"); |
858c9f6c | 2162 | goto debug_failed; |
a58cbd52 | 2163 | } |
858c9f6c JS |
2164 | atomic_inc(&phba->debugfs_vport_count); |
2165 | } | |
2166 | ||
a58cbd52 JS |
2167 | if (lpfc_debugfs_max_disc_trc) { |
2168 | num = lpfc_debugfs_max_disc_trc - 1; | |
2169 | if (num & lpfc_debugfs_max_disc_trc) { | |
2170 | /* Change to be a power of 2 */ | |
2171 | num = lpfc_debugfs_max_disc_trc; | |
2172 | i = 0; | |
2173 | while (num > 1) { | |
2174 | num = num >> 1; | |
2175 | i++; | |
2176 | } | |
2177 | lpfc_debugfs_max_disc_trc = (1 << i); | |
2178 | printk(KERN_ERR | |
e8b62011 JS |
2179 | "lpfc_debugfs_max_disc_trc changed to %d\n", |
2180 | lpfc_debugfs_max_disc_trc); | |
a58cbd52 JS |
2181 | } |
2182 | } | |
858c9f6c | 2183 | |
ff86ba59 | 2184 | vport->disc_trc = kzalloc( |
a58cbd52 | 2185 | (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), |
858c9f6c JS |
2186 | GFP_KERNEL); |
2187 | ||
a58cbd52 | 2188 | if (!vport->disc_trc) { |
e8b62011 | 2189 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 2190 | "0418 Cannot create debugfs disc trace " |
e8b62011 | 2191 | "buffer\n"); |
858c9f6c | 2192 | goto debug_failed; |
a58cbd52 JS |
2193 | } |
2194 | atomic_set(&vport->disc_trc_cnt, 0); | |
858c9f6c JS |
2195 | |
2196 | snprintf(name, sizeof(name), "discovery_trace"); | |
2197 | vport->debug_disc_trc = | |
2198 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
2199 | vport->vport_debugfs_root, | |
2200 | vport, &lpfc_debugfs_op_disc_trc); | |
2201 | if (!vport->debug_disc_trc) { | |
e8b62011 | 2202 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 2203 | "0419 Cannot create debugfs " |
e8b62011 | 2204 | "discovery_trace\n"); |
858c9f6c JS |
2205 | goto debug_failed; |
2206 | } | |
2207 | snprintf(name, sizeof(name), "nodelist"); | |
2208 | vport->debug_nodelist = | |
2209 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
2210 | vport->vport_debugfs_root, | |
2211 | vport, &lpfc_debugfs_op_nodelist); | |
2212 | if (!vport->debug_nodelist) { | |
e8b62011 | 2213 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
6a9c52cf | 2214 | "0409 Cant create debugfs nodelist\n"); |
858c9f6c JS |
2215 | goto debug_failed; |
2216 | } | |
2a622bfb JS |
2217 | |
2218 | /* | |
2219 | * iDiag debugfs root entry points for SLI4 device only | |
2220 | */ | |
2221 | if (phba->sli_rev < LPFC_SLI_REV4) | |
2222 | goto debug_failed; | |
2223 | ||
2224 | snprintf(name, sizeof(name), "iDiag"); | |
2225 | if (!phba->idiag_root) { | |
2226 | phba->idiag_root = | |
2227 | debugfs_create_dir(name, phba->hba_debugfs_root); | |
2228 | if (!phba->idiag_root) { | |
2229 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
2230 | "2922 Can't create idiag debugfs\n"); | |
2231 | goto debug_failed; | |
2232 | } | |
2233 | /* Initialize iDiag data structure */ | |
2234 | memset(&idiag, 0, sizeof(idiag)); | |
2235 | } | |
2236 | ||
2237 | /* iDiag read PCI config space */ | |
2238 | snprintf(name, sizeof(name), "pciCfg"); | |
2239 | if (!phba->idiag_pci_cfg) { | |
2240 | phba->idiag_pci_cfg = | |
2241 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
2242 | phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); | |
2243 | if (!phba->idiag_pci_cfg) { | |
2244 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
2245 | "2923 Can't create idiag debugfs\n"); | |
2246 | goto debug_failed; | |
2247 | } | |
2248 | idiag.offset.last_rd = 0; | |
2249 | } | |
2250 | ||
2251 | /* iDiag get PCI function queue information */ | |
2252 | snprintf(name, sizeof(name), "queInfo"); | |
2253 | if (!phba->idiag_que_info) { | |
2254 | phba->idiag_que_info = | |
2255 | debugfs_create_file(name, S_IFREG|S_IRUGO, | |
2256 | phba->idiag_root, phba, &lpfc_idiag_op_queInfo); | |
2257 | if (!phba->idiag_que_info) { | |
2258 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
2259 | "2924 Can't create idiag debugfs\n"); | |
2260 | goto debug_failed; | |
2261 | } | |
2262 | } | |
2263 | ||
858c9f6c JS |
2264 | debug_failed: |
2265 | return; | |
2266 | #endif | |
2267 | } | |
2268 | ||
e59058c4 | 2269 | /** |
3621a710 | 2270 | * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport |
e59058c4 JS |
2271 | * @vport: The vport pointer to remove from debugfs. |
2272 | * | |
2273 | * Description: | |
2274 | * When Debugfs is configured this routine removes debugfs file system elements | |
2275 | * that are specific to this vport. It also checks to see if there are any | |
2276 | * users left for the debugfs directories associated with the HBA and driver. If | |
2277 | * this is the last user of the HBA directory or driver directory then it will | |
2278 | * remove those from the debugfs infrastructure as well. | |
2279 | **/ | |
858c9f6c JS |
2280 | inline void |
2281 | lpfc_debugfs_terminate(struct lpfc_vport *vport) | |
2282 | { | |
923e4b6a | 2283 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
858c9f6c JS |
2284 | struct lpfc_hba *phba = vport->phba; |
2285 | ||
2286 | if (vport->disc_trc) { | |
2287 | kfree(vport->disc_trc); | |
2288 | vport->disc_trc = NULL; | |
2289 | } | |
2290 | if (vport->debug_disc_trc) { | |
2291 | debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ | |
2292 | vport->debug_disc_trc = NULL; | |
2293 | } | |
2294 | if (vport->debug_nodelist) { | |
2295 | debugfs_remove(vport->debug_nodelist); /* nodelist */ | |
2296 | vport->debug_nodelist = NULL; | |
2297 | } | |
a58cbd52 | 2298 | |
858c9f6c JS |
2299 | if (vport->vport_debugfs_root) { |
2300 | debugfs_remove(vport->vport_debugfs_root); /* vportX */ | |
2301 | vport->vport_debugfs_root = NULL; | |
2302 | atomic_dec(&phba->debugfs_vport_count); | |
2303 | } | |
2304 | if (atomic_read(&phba->debugfs_vport_count) == 0) { | |
a58cbd52 | 2305 | |
78b2d852 JS |
2306 | if (phba->debug_hbqinfo) { |
2307 | debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ | |
2308 | phba->debug_hbqinfo = NULL; | |
2309 | } | |
c95d6c6c JS |
2310 | if (phba->debug_dumpHBASlim) { |
2311 | debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ | |
2312 | phba->debug_dumpHBASlim = NULL; | |
2313 | } | |
2314 | if (phba->debug_dumpHostSlim) { | |
2315 | debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ | |
2316 | phba->debug_dumpHostSlim = NULL; | |
a58cbd52 | 2317 | } |
e2a0a9d6 JS |
2318 | if (phba->debug_dumpData) { |
2319 | debugfs_remove(phba->debug_dumpData); /* dumpData */ | |
2320 | phba->debug_dumpData = NULL; | |
2321 | } | |
2322 | ||
2323 | if (phba->debug_dumpDif) { | |
2324 | debugfs_remove(phba->debug_dumpDif); /* dumpDif */ | |
2325 | phba->debug_dumpDif = NULL; | |
2326 | } | |
2327 | ||
a58cbd52 JS |
2328 | if (phba->slow_ring_trc) { |
2329 | kfree(phba->slow_ring_trc); | |
2330 | phba->slow_ring_trc = NULL; | |
2331 | } | |
2332 | if (phba->debug_slow_ring_trc) { | |
2333 | /* slow_ring_trace */ | |
2334 | debugfs_remove(phba->debug_slow_ring_trc); | |
2335 | phba->debug_slow_ring_trc = NULL; | |
2336 | } | |
2337 | ||
2a622bfb JS |
2338 | /* |
2339 | * iDiag release | |
2340 | */ | |
2341 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
2342 | if (phba->idiag_que_info) { | |
2343 | /* iDiag queInfo */ | |
2344 | debugfs_remove(phba->idiag_que_info); | |
2345 | phba->idiag_que_info = NULL; | |
2346 | } | |
2347 | if (phba->idiag_pci_cfg) { | |
2348 | /* iDiag pciCfg */ | |
2349 | debugfs_remove(phba->idiag_pci_cfg); | |
2350 | phba->idiag_pci_cfg = NULL; | |
2351 | } | |
2352 | ||
2353 | /* Finally remove the iDiag debugfs root */ | |
2354 | if (phba->idiag_root) { | |
2355 | /* iDiag root */ | |
2356 | debugfs_remove(phba->idiag_root); | |
2357 | phba->idiag_root = NULL; | |
2358 | } | |
2359 | } | |
2360 | ||
a58cbd52 | 2361 | if (phba->hba_debugfs_root) { |
2a622bfb | 2362 | debugfs_remove(phba->hba_debugfs_root); /* fnX */ |
a58cbd52 JS |
2363 | phba->hba_debugfs_root = NULL; |
2364 | atomic_dec(&lpfc_debugfs_hba_count); | |
2365 | } | |
2366 | ||
858c9f6c JS |
2367 | if (atomic_read(&lpfc_debugfs_hba_count) == 0) { |
2368 | debugfs_remove(lpfc_debugfs_root); /* lpfc */ | |
2369 | lpfc_debugfs_root = NULL; | |
2370 | } | |
2371 | } | |
2372 | #endif | |
a58cbd52 | 2373 | return; |
858c9f6c | 2374 | } |