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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. * | |
d85296cf | 4 | * Copyright (C) 2007-2012 Emulex. All rights reserved. * |
858c9f6c JS |
5 | * EMULEX and SLI are trademarks of Emulex. * |
6 | * www.emulex.com * | |
7 | * * | |
8 | * This program is free software; you can redistribute it and/or * | |
9 | * modify it under the terms of version 2 of the GNU General * | |
10 | * Public License as published by the Free Software Foundation. * | |
11 | * This program is distributed in the hope that it will be useful. * | |
12 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
13 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
14 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
15 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
16 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
17 | * more details, a copy of which can be found in the file COPYING * | |
18 | * included with this package. * | |
19 | *******************************************************************/ | |
20 | ||
21 | #include <linux/blkdev.h> | |
22 | #include <linux/delay.h> | |
acf3368f | 23 | #include <linux/module.h> |
858c9f6c JS |
24 | #include <linux/dma-mapping.h> |
25 | #include <linux/idr.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/kthread.h> | |
5a0e3ad6 | 28 | #include <linux/slab.h> |
858c9f6c JS |
29 | #include <linux/pci.h> |
30 | #include <linux/spinlock.h> | |
31 | #include <linux/ctype.h> | |
858c9f6c JS |
32 | |
33 | #include <scsi/scsi.h> | |
34 | #include <scsi/scsi_device.h> | |
35 | #include <scsi/scsi_host.h> | |
36 | #include <scsi/scsi_transport_fc.h> | |
37 | ||
da0436e9 | 38 | #include "lpfc_hw4.h" |
858c9f6c JS |
39 | #include "lpfc_hw.h" |
40 | #include "lpfc_sli.h" | |
da0436e9 | 41 | #include "lpfc_sli4.h" |
ea2151b4 | 42 | #include "lpfc_nl.h" |
858c9f6c JS |
43 | #include "lpfc_disc.h" |
44 | #include "lpfc_scsi.h" | |
45 | #include "lpfc.h" | |
46 | #include "lpfc_logmsg.h" | |
47 | #include "lpfc_crtn.h" | |
48 | #include "lpfc_vport.h" | |
49 | #include "lpfc_version.h" | |
c95d6c6c | 50 | #include "lpfc_compat.h" |
858c9f6c | 51 | #include "lpfc_debugfs.h" |
b76f2dc9 | 52 | #include "lpfc_bsg.h" |
858c9f6c | 53 | |
923e4b6a | 54 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
3621a710 | 55 | /* |
e59058c4 | 56 | * debugfs interface |
858c9f6c JS |
57 | * |
58 | * To access this interface the user should: | |
156f5a78 | 59 | * # mount -t debugfs none /sys/kernel/debug |
858c9f6c | 60 | * |
e59058c4 | 61 | * The lpfc debugfs directory hierarchy is: |
2a622bfb JS |
62 | * /sys/kernel/debug/lpfc/fnX/vportY |
63 | * where X is the lpfc hba function unique_id | |
858c9f6c JS |
64 | * where Y is the vport VPI on that hba |
65 | * | |
66 | * Debugging services available per vport: | |
67 | * discovery_trace | |
68 | * This is an ACSII readable file that contains a trace of the last | |
69 | * lpfc_debugfs_max_disc_trc events that happened on a specific vport. | |
e59058c4 JS |
70 | * See lpfc_debugfs.h for different categories of discovery events. |
71 | * To enable the discovery trace, the following module parameters must be set: | |
858c9f6c JS |
72 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support |
73 | * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for | |
74 | * EACH vport. X MUST also be a power of 2. | |
75 | * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in | |
76 | * lpfc_debugfs.h . | |
e59058c4 JS |
77 | * |
78 | * slow_ring_trace | |
79 | * This is an ACSII readable file that contains a trace of the last | |
80 | * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA. | |
81 | * To enable the slow ring trace, the following module parameters must be set: | |
82 | * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support | |
83 | * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for | |
84 | * the HBA. X MUST also be a power of 2. | |
858c9f6c | 85 | */ |
51ef4c26 | 86 | static int lpfc_debugfs_enable = 1; |
ab56dc2e | 87 | module_param(lpfc_debugfs_enable, int, S_IRUGO); |
858c9f6c JS |
88 | MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services"); |
89 | ||
a58cbd52 | 90 | /* This MUST be a power of 2 */ |
c95d6c6c | 91 | static int lpfc_debugfs_max_disc_trc; |
ab56dc2e | 92 | module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO); |
858c9f6c JS |
93 | MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc, |
94 | "Set debugfs discovery trace depth"); | |
95 | ||
a58cbd52 | 96 | /* This MUST be a power of 2 */ |
c95d6c6c | 97 | static int lpfc_debugfs_max_slow_ring_trc; |
ab56dc2e | 98 | module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO); |
a58cbd52 JS |
99 | MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc, |
100 | "Set debugfs slow ring trace depth"); | |
101 | ||
a257bf90 | 102 | static int lpfc_debugfs_mask_disc_trc; |
ab56dc2e | 103 | module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO); |
858c9f6c JS |
104 | MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc, |
105 | "Set debugfs discovery trace mask"); | |
106 | ||
107 | #include <linux/debugfs.h> | |
108 | ||
311464ec JS |
109 | static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); |
110 | static unsigned long lpfc_debugfs_start_time = 0L; | |
858c9f6c | 111 | |
2a622bfb JS |
112 | /* iDiag */ |
113 | static struct lpfc_idiag idiag; | |
114 | ||
e59058c4 | 115 | /** |
3621a710 | 116 | * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer |
e59058c4 JS |
117 | * @vport: The vport to gather the log info from. |
118 | * @buf: The buffer to dump log into. | |
119 | * @size: The maximum amount of data to process. | |
120 | * | |
121 | * Description: | |
122 | * This routine gathers the lpfc discovery debugfs data from the @vport and | |
123 | * dumps it to @buf up to @size number of bytes. It will start at the next entry | |
124 | * in the log and process the log until the end of the buffer. Then it will | |
125 | * gather from the beginning of the log and process until the current entry. | |
126 | * | |
127 | * Notes: | |
128 | * Discovery logging will be disabled while while this routine dumps the log. | |
129 | * | |
130 | * Return Value: | |
131 | * This routine returns the amount of bytes that were dumped into @buf and will | |
132 | * not exceed @size. | |
133 | **/ | |
858c9f6c JS |
134 | static int |
135 | lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) | |
136 | { | |
137 | int i, index, len, enable; | |
138 | uint32_t ms; | |
a58cbd52 | 139 | struct lpfc_debugfs_trc *dtp; |
b76f2dc9 JS |
140 | char *buffer; |
141 | ||
142 | buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); | |
143 | if (!buffer) | |
144 | return 0; | |
858c9f6c | 145 | |
858c9f6c JS |
146 | enable = lpfc_debugfs_enable; |
147 | lpfc_debugfs_enable = 0; | |
148 | ||
149 | len = 0; | |
150 | index = (atomic_read(&vport->disc_trc_cnt) + 1) & | |
151 | (lpfc_debugfs_max_disc_trc - 1); | |
152 | for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { | |
153 | dtp = vport->disc_trc + i; | |
154 | if (!dtp->fmt) | |
155 | continue; | |
156 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
a58cbd52 JS |
157 | snprintf(buffer, |
158 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
858c9f6c JS |
159 | dtp->seq_cnt, ms, dtp->fmt); |
160 | len += snprintf(buf+len, size-len, buffer, | |
161 | dtp->data1, dtp->data2, dtp->data3); | |
162 | } | |
163 | for (i = 0; i < index; i++) { | |
164 | dtp = vport->disc_trc + i; | |
165 | if (!dtp->fmt) | |
166 | continue; | |
167 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
a58cbd52 JS |
168 | snprintf(buffer, |
169 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
170 | dtp->seq_cnt, ms, dtp->fmt); | |
171 | len += snprintf(buf+len, size-len, buffer, | |
172 | dtp->data1, dtp->data2, dtp->data3); | |
173 | } | |
174 | ||
175 | lpfc_debugfs_enable = enable; | |
b76f2dc9 JS |
176 | kfree(buffer); |
177 | ||
a58cbd52 JS |
178 | return len; |
179 | } | |
180 | ||
e59058c4 | 181 | /** |
3621a710 | 182 | * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer |
e59058c4 JS |
183 | * @phba: The HBA to gather the log info from. |
184 | * @buf: The buffer to dump log into. | |
185 | * @size: The maximum amount of data to process. | |
186 | * | |
187 | * Description: | |
188 | * This routine gathers the lpfc slow ring debugfs data from the @phba and | |
189 | * dumps it to @buf up to @size number of bytes. It will start at the next entry | |
190 | * in the log and process the log until the end of the buffer. Then it will | |
191 | * gather from the beginning of the log and process until the current entry. | |
192 | * | |
193 | * Notes: | |
194 | * Slow ring logging will be disabled while while this routine dumps the log. | |
195 | * | |
196 | * Return Value: | |
197 | * This routine returns the amount of bytes that were dumped into @buf and will | |
198 | * not exceed @size. | |
199 | **/ | |
a58cbd52 JS |
200 | static int |
201 | lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) | |
202 | { | |
203 | int i, index, len, enable; | |
204 | uint32_t ms; | |
205 | struct lpfc_debugfs_trc *dtp; | |
b76f2dc9 | 206 | char *buffer; |
a58cbd52 | 207 | |
b76f2dc9 JS |
208 | buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL); |
209 | if (!buffer) | |
210 | return 0; | |
a58cbd52 JS |
211 | |
212 | enable = lpfc_debugfs_enable; | |
213 | lpfc_debugfs_enable = 0; | |
214 | ||
215 | len = 0; | |
216 | index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & | |
217 | (lpfc_debugfs_max_slow_ring_trc - 1); | |
218 | for (i = index; i < lpfc_debugfs_max_slow_ring_trc; 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", | |
225 | dtp->seq_cnt, ms, dtp->fmt); | |
226 | len += snprintf(buf+len, size-len, buffer, | |
227 | dtp->data1, dtp->data2, dtp->data3); | |
228 | } | |
229 | for (i = 0; i < index; i++) { | |
230 | dtp = phba->slow_ring_trc + i; | |
231 | if (!dtp->fmt) | |
232 | continue; | |
233 | ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time); | |
234 | snprintf(buffer, | |
235 | LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n", | |
858c9f6c JS |
236 | dtp->seq_cnt, ms, dtp->fmt); |
237 | len += snprintf(buf+len, size-len, buffer, | |
238 | dtp->data1, dtp->data2, dtp->data3); | |
239 | } | |
240 | ||
241 | lpfc_debugfs_enable = enable; | |
b76f2dc9 JS |
242 | kfree(buffer); |
243 | ||
858c9f6c JS |
244 | return len; |
245 | } | |
246 | ||
311464ec | 247 | static int lpfc_debugfs_last_hbq = -1; |
78b2d852 | 248 | |
e59058c4 | 249 | /** |
3621a710 | 250 | * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer |
e59058c4 JS |
251 | * @phba: The HBA to gather host buffer info from. |
252 | * @buf: The buffer to dump log into. | |
253 | * @size: The maximum amount of data to process. | |
254 | * | |
255 | * Description: | |
256 | * This routine dumps the host buffer queue info from the @phba to @buf up to | |
257 | * @size number of bytes. A header that describes the current hbq state will be | |
258 | * dumped to @buf first and then info on each hbq entry will be dumped to @buf | |
259 | * until @size bytes have been dumped or all the hbq info has been dumped. | |
260 | * | |
261 | * Notes: | |
262 | * This routine will rotate through each configured HBQ each time called. | |
263 | * | |
264 | * Return Value: | |
265 | * This routine returns the amount of bytes that were dumped into @buf and will | |
266 | * not exceed @size. | |
267 | **/ | |
78b2d852 JS |
268 | static int |
269 | lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) | |
270 | { | |
271 | int len = 0; | |
272 | int cnt, i, j, found, posted, low; | |
273 | uint32_t phys, raw_index, getidx; | |
274 | struct lpfc_hbq_init *hip; | |
275 | struct hbq_s *hbqs; | |
276 | struct lpfc_hbq_entry *hbqe; | |
277 | struct lpfc_dmabuf *d_buf; | |
278 | struct hbq_dmabuf *hbq_buf; | |
279 | ||
3772a991 JS |
280 | if (phba->sli_rev != 3) |
281 | return 0; | |
78b2d852 JS |
282 | cnt = LPFC_HBQINFO_SIZE; |
283 | spin_lock_irq(&phba->hbalock); | |
284 | ||
285 | /* toggle between multiple hbqs, if any */ | |
286 | i = lpfc_sli_hbq_count(); | |
287 | if (i > 1) { | |
288 | lpfc_debugfs_last_hbq++; | |
289 | if (lpfc_debugfs_last_hbq >= i) | |
290 | lpfc_debugfs_last_hbq = 0; | |
291 | } | |
292 | else | |
293 | lpfc_debugfs_last_hbq = 0; | |
294 | ||
295 | i = lpfc_debugfs_last_hbq; | |
296 | ||
297 | len += snprintf(buf+len, size-len, "HBQ %d Info\n", i); | |
298 | ||
51ef4c26 | 299 | hbqs = &phba->hbqs[i]; |
78b2d852 | 300 | posted = 0; |
51ef4c26 | 301 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) |
78b2d852 JS |
302 | posted++; |
303 | ||
304 | hip = lpfc_hbq_defs[i]; | |
305 | len += snprintf(buf+len, size-len, | |
306 | "idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n", | |
307 | hip->hbq_index, hip->profile, hip->rn, | |
308 | hip->buffer_count, hip->init_count, hip->add_count, posted); | |
309 | ||
78b2d852 JS |
310 | raw_index = phba->hbq_get[i]; |
311 | getidx = le32_to_cpu(raw_index); | |
312 | len += snprintf(buf+len, size-len, | |
a8adb832 JS |
313 | "entrys:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n", |
314 | hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx, | |
315 | hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx); | |
78b2d852 | 316 | |
51ef4c26 | 317 | hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt; |
78b2d852 JS |
318 | for (j=0; j<hbqs->entry_count; j++) { |
319 | len += snprintf(buf+len, size-len, | |
320 | "%03d: %08x %04x %05x ", j, | |
a8adb832 JS |
321 | le32_to_cpu(hbqe->bde.addrLow), |
322 | le32_to_cpu(hbqe->bde.tus.w), | |
323 | le32_to_cpu(hbqe->buffer_tag)); | |
78b2d852 JS |
324 | i = 0; |
325 | found = 0; | |
326 | ||
327 | /* First calculate if slot has an associated posted buffer */ | |
328 | low = hbqs->hbqPutIdx - posted; | |
329 | if (low >= 0) { | |
330 | if ((j >= hbqs->hbqPutIdx) || (j < low)) { | |
331 | len += snprintf(buf+len, size-len, "Unused\n"); | |
332 | goto skipit; | |
333 | } | |
334 | } | |
335 | else { | |
336 | if ((j >= hbqs->hbqPutIdx) && | |
337 | (j < (hbqs->entry_count+low))) { | |
338 | len += snprintf(buf+len, size-len, "Unused\n"); | |
339 | goto skipit; | |
340 | } | |
341 | } | |
342 | ||
343 | /* Get the Buffer info for the posted buffer */ | |
51ef4c26 | 344 | list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) { |
78b2d852 JS |
345 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
346 | phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff); | |
a8adb832 | 347 | if (phys == le32_to_cpu(hbqe->bde.addrLow)) { |
78b2d852 JS |
348 | len += snprintf(buf+len, size-len, |
349 | "Buf%d: %p %06x\n", i, | |
350 | hbq_buf->dbuf.virt, hbq_buf->tag); | |
351 | found = 1; | |
352 | break; | |
353 | } | |
354 | i++; | |
355 | } | |
356 | if (!found) { | |
357 | len += snprintf(buf+len, size-len, "No DMAinfo?\n"); | |
358 | } | |
359 | skipit: | |
360 | hbqe++; | |
361 | if (len > LPFC_HBQINFO_SIZE - 54) | |
362 | break; | |
363 | } | |
364 | spin_unlock_irq(&phba->hbalock); | |
365 | return len; | |
366 | } | |
367 | ||
c95d6c6c JS |
368 | static int lpfc_debugfs_last_hba_slim_off; |
369 | ||
e59058c4 | 370 | /** |
3621a710 | 371 | * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer |
e59058c4 JS |
372 | * @phba: The HBA to gather SLIM info from. |
373 | * @buf: The buffer to dump log into. | |
374 | * @size: The maximum amount of data to process. | |
375 | * | |
376 | * Description: | |
377 | * This routine dumps the current contents of HBA SLIM for the HBA associated | |
378 | * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data. | |
379 | * | |
380 | * Notes: | |
381 | * This routine will only dump up to 1024 bytes of data each time called and | |
382 | * should be called multiple times to dump the entire HBA SLIM. | |
383 | * | |
384 | * Return Value: | |
385 | * This routine returns the amount of bytes that were dumped into @buf and will | |
386 | * not exceed @size. | |
387 | **/ | |
c95d6c6c JS |
388 | static int |
389 | lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) | |
390 | { | |
391 | int len = 0; | |
392 | int i, off; | |
393 | uint32_t *ptr; | |
b76f2dc9 JS |
394 | char *buffer; |
395 | ||
396 | buffer = kmalloc(1024, GFP_KERNEL); | |
397 | if (!buffer) | |
398 | return 0; | |
c95d6c6c JS |
399 | |
400 | off = 0; | |
401 | spin_lock_irq(&phba->hbalock); | |
402 | ||
403 | len += snprintf(buf+len, size-len, "HBA SLIM\n"); | |
404 | lpfc_memcpy_from_slim(buffer, | |
a257bf90 | 405 | phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024); |
c95d6c6c JS |
406 | |
407 | ptr = (uint32_t *)&buffer[0]; | |
408 | off = lpfc_debugfs_last_hba_slim_off; | |
409 | ||
410 | /* Set it up for the next time */ | |
411 | lpfc_debugfs_last_hba_slim_off += 1024; | |
412 | if (lpfc_debugfs_last_hba_slim_off >= 4096) | |
413 | lpfc_debugfs_last_hba_slim_off = 0; | |
414 | ||
415 | i = 1024; | |
416 | while (i > 0) { | |
417 | len += snprintf(buf+len, size-len, | |
418 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", | |
419 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), | |
420 | *(ptr+5), *(ptr+6), *(ptr+7)); | |
421 | ptr += 8; | |
422 | i -= (8 * sizeof(uint32_t)); | |
423 | off += (8 * sizeof(uint32_t)); | |
424 | } | |
425 | ||
426 | spin_unlock_irq(&phba->hbalock); | |
b76f2dc9 JS |
427 | kfree(buffer); |
428 | ||
c95d6c6c JS |
429 | return len; |
430 | } | |
431 | ||
e59058c4 | 432 | /** |
3621a710 | 433 | * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer |
e59058c4 JS |
434 | * @phba: The HBA to gather Host SLIM info from. |
435 | * @buf: The buffer to dump log into. | |
436 | * @size: The maximum amount of data to process. | |
437 | * | |
438 | * Description: | |
439 | * This routine dumps the current contents of host SLIM for the host associated | |
440 | * with @phba to @buf up to @size bytes of data. The dump will contain the | |
441 | * Mailbox, PCB, Rings, and Registers that are located in host memory. | |
442 | * | |
443 | * Return Value: | |
444 | * This routine returns the amount of bytes that were dumped into @buf and will | |
445 | * not exceed @size. | |
446 | **/ | |
a58cbd52 | 447 | static int |
c95d6c6c | 448 | lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) |
a58cbd52 JS |
449 | { |
450 | int len = 0; | |
c95d6c6c | 451 | int i, off; |
a58cbd52 JS |
452 | uint32_t word0, word1, word2, word3; |
453 | uint32_t *ptr; | |
454 | struct lpfc_pgp *pgpp; | |
455 | struct lpfc_sli *psli = &phba->sli; | |
456 | struct lpfc_sli_ring *pring; | |
457 | ||
a58cbd52 JS |
458 | off = 0; |
459 | spin_lock_irq(&phba->hbalock); | |
460 | ||
461 | len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); | |
34b02dcd | 462 | ptr = (uint32_t *)phba->slim2p.virt; |
a58cbd52 JS |
463 | i = sizeof(MAILBOX_t); |
464 | while (i > 0) { | |
465 | len += snprintf(buf+len, size-len, | |
466 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", | |
467 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), | |
468 | *(ptr+5), *(ptr+6), *(ptr+7)); | |
469 | ptr += 8; | |
470 | i -= (8 * sizeof(uint32_t)); | |
471 | off += (8 * sizeof(uint32_t)); | |
472 | } | |
473 | ||
474 | len += snprintf(buf+len, size-len, "SLIM PCB\n"); | |
34b02dcd | 475 | ptr = (uint32_t *)phba->pcb; |
a58cbd52 JS |
476 | i = sizeof(PCB_t); |
477 | while (i > 0) { | |
478 | len += snprintf(buf+len, size-len, | |
479 | "%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", | |
480 | off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), | |
481 | *(ptr+5), *(ptr+6), *(ptr+7)); | |
482 | ptr += 8; | |
483 | i -= (8 * sizeof(uint32_t)); | |
484 | off += (8 * sizeof(uint32_t)); | |
485 | } | |
486 | ||
34b02dcd JS |
487 | for (i = 0; i < 4; i++) { |
488 | pgpp = &phba->port_gp[i]; | |
489 | pring = &psli->ring[i]; | |
490 | len += snprintf(buf+len, size-len, | |
491 | "Ring %d: CMD GetInx:%d (Max:%d Next:%d " | |
492 | "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n", | |
7e56aa25 JS |
493 | i, pgpp->cmdGetInx, pring->sli.sli3.numCiocb, |
494 | pring->sli.sli3.next_cmdidx, | |
495 | pring->sli.sli3.local_getidx, | |
496 | pring->flag, pgpp->rspPutInx, | |
497 | pring->sli.sli3.numRiocb); | |
34b02dcd | 498 | } |
3772a991 JS |
499 | |
500 | if (phba->sli_rev <= LPFC_SLI_REV3) { | |
501 | word0 = readl(phba->HAregaddr); | |
502 | word1 = readl(phba->CAregaddr); | |
503 | word2 = readl(phba->HSregaddr); | |
504 | word3 = readl(phba->HCregaddr); | |
505 | len += snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x " | |
506 | "HC:%08x\n", word0, word1, word2, word3); | |
507 | } | |
a58cbd52 JS |
508 | spin_unlock_irq(&phba->hbalock); |
509 | return len; | |
510 | } | |
511 | ||
e59058c4 | 512 | /** |
3621a710 | 513 | * lpfc_debugfs_nodelist_data - Dump target node list to a buffer |
e59058c4 JS |
514 | * @vport: The vport to gather target node info from. |
515 | * @buf: The buffer to dump log into. | |
516 | * @size: The maximum amount of data to process. | |
517 | * | |
518 | * Description: | |
519 | * This routine dumps the current target node list associated with @vport to | |
520 | * @buf up to @size bytes of data. Each node entry in the dump will contain a | |
521 | * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields. | |
522 | * | |
523 | * Return Value: | |
524 | * This routine returns the amount of bytes that were dumped into @buf and will | |
525 | * not exceed @size. | |
526 | **/ | |
858c9f6c JS |
527 | static int |
528 | lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) | |
529 | { | |
530 | int len = 0; | |
531 | int cnt; | |
532 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); | |
533 | struct lpfc_nodelist *ndlp; | |
534 | unsigned char *statep, *name; | |
535 | ||
536 | cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE); | |
537 | ||
538 | spin_lock_irq(shost->host_lock); | |
539 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { | |
540 | if (!cnt) { | |
541 | len += snprintf(buf+len, size-len, | |
542 | "Missing Nodelist Entries\n"); | |
543 | break; | |
544 | } | |
545 | cnt--; | |
546 | switch (ndlp->nlp_state) { | |
547 | case NLP_STE_UNUSED_NODE: | |
548 | statep = "UNUSED"; | |
549 | break; | |
550 | case NLP_STE_PLOGI_ISSUE: | |
551 | statep = "PLOGI "; | |
552 | break; | |
553 | case NLP_STE_ADISC_ISSUE: | |
554 | statep = "ADISC "; | |
555 | break; | |
556 | case NLP_STE_REG_LOGIN_ISSUE: | |
557 | statep = "REGLOG"; | |
558 | break; | |
559 | case NLP_STE_PRLI_ISSUE: | |
560 | statep = "PRLI "; | |
561 | break; | |
086a345f JS |
562 | case NLP_STE_LOGO_ISSUE: |
563 | statep = "LOGO "; | |
564 | break; | |
858c9f6c JS |
565 | case NLP_STE_UNMAPPED_NODE: |
566 | statep = "UNMAP "; | |
567 | break; | |
568 | case NLP_STE_MAPPED_NODE: | |
569 | statep = "MAPPED"; | |
570 | break; | |
571 | case NLP_STE_NPR_NODE: | |
572 | statep = "NPR "; | |
573 | break; | |
574 | default: | |
575 | statep = "UNKNOWN"; | |
576 | } | |
577 | len += snprintf(buf+len, size-len, "%s DID:x%06x ", | |
578 | statep, ndlp->nlp_DID); | |
579 | name = (unsigned char *)&ndlp->nlp_portname; | |
580 | len += snprintf(buf+len, size-len, | |
581 | "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", | |
582 | *name, *(name+1), *(name+2), *(name+3), | |
583 | *(name+4), *(name+5), *(name+6), *(name+7)); | |
584 | name = (unsigned char *)&ndlp->nlp_nodename; | |
585 | len += snprintf(buf+len, size-len, | |
586 | "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ", | |
587 | *name, *(name+1), *(name+2), *(name+3), | |
588 | *(name+4), *(name+5), *(name+6), *(name+7)); | |
086a345f JS |
589 | if (ndlp->nlp_flag & NLP_RPI_REGISTERED) |
590 | len += snprintf(buf+len, size-len, "RPI:%03d ", | |
591 | ndlp->nlp_rpi); | |
592 | else | |
593 | len += snprintf(buf+len, size-len, "RPI:none "); | |
594 | len += snprintf(buf+len, size-len, "flag:x%08x ", | |
595 | ndlp->nlp_flag); | |
858c9f6c | 596 | if (!ndlp->nlp_type) |
a58cbd52 | 597 | len += snprintf(buf+len, size-len, "UNKNOWN_TYPE "); |
858c9f6c JS |
598 | if (ndlp->nlp_type & NLP_FC_NODE) |
599 | len += snprintf(buf+len, size-len, "FC_NODE "); | |
600 | if (ndlp->nlp_type & NLP_FABRIC) | |
601 | len += snprintf(buf+len, size-len, "FABRIC "); | |
602 | if (ndlp->nlp_type & NLP_FCP_TARGET) | |
603 | len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ", | |
604 | ndlp->nlp_sid); | |
605 | if (ndlp->nlp_type & NLP_FCP_INITIATOR) | |
a58cbd52 | 606 | len += snprintf(buf+len, size-len, "FCP_INITIATOR "); |
58da1ffb JS |
607 | len += snprintf(buf+len, size-len, "usgmap:%x ", |
608 | ndlp->nlp_usg_map); | |
a58cbd52 JS |
609 | len += snprintf(buf+len, size-len, "refcnt:%x", |
610 | atomic_read(&ndlp->kref.refcount)); | |
858c9f6c JS |
611 | len += snprintf(buf+len, size-len, "\n"); |
612 | } | |
613 | spin_unlock_irq(shost->host_lock); | |
614 | return len; | |
615 | } | |
616 | #endif | |
617 | ||
e59058c4 | 618 | /** |
3621a710 | 619 | * lpfc_debugfs_disc_trc - Store discovery trace log |
e59058c4 JS |
620 | * @vport: The vport to associate this trace string with for retrieval. |
621 | * @mask: Log entry classification. | |
622 | * @fmt: Format string to be displayed when dumping the log. | |
623 | * @data1: 1st data parameter to be applied to @fmt. | |
624 | * @data2: 2nd data parameter to be applied to @fmt. | |
625 | * @data3: 3rd data parameter to be applied to @fmt. | |
626 | * | |
627 | * Description: | |
628 | * This routine is used by the driver code to add a debugfs log entry to the | |
629 | * discovery trace buffer associated with @vport. Only entries with a @mask that | |
630 | * match the current debugfs discovery mask will be saved. Entries that do not | |
631 | * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like | |
632 | * printf when displaying the log. | |
633 | **/ | |
858c9f6c JS |
634 | inline void |
635 | lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, | |
636 | uint32_t data1, uint32_t data2, uint32_t data3) | |
637 | { | |
923e4b6a | 638 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
a58cbd52 | 639 | struct lpfc_debugfs_trc *dtp; |
858c9f6c JS |
640 | int index; |
641 | ||
642 | if (!(lpfc_debugfs_mask_disc_trc & mask)) | |
643 | return; | |
644 | ||
645 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc || | |
646 | !vport || !vport->disc_trc) | |
647 | return; | |
648 | ||
649 | index = atomic_inc_return(&vport->disc_trc_cnt) & | |
650 | (lpfc_debugfs_max_disc_trc - 1); | |
651 | dtp = vport->disc_trc + index; | |
652 | dtp->fmt = fmt; | |
653 | dtp->data1 = data1; | |
654 | dtp->data2 = data2; | |
655 | dtp->data3 = data3; | |
a58cbd52 JS |
656 | dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); |
657 | dtp->jif = jiffies; | |
658 | #endif | |
659 | return; | |
660 | } | |
661 | ||
e59058c4 | 662 | /** |
3621a710 | 663 | * lpfc_debugfs_slow_ring_trc - Store slow ring trace log |
e59058c4 JS |
664 | * @phba: The phba to associate this trace string with for retrieval. |
665 | * @fmt: Format string to be displayed when dumping the log. | |
666 | * @data1: 1st data parameter to be applied to @fmt. | |
667 | * @data2: 2nd data parameter to be applied to @fmt. | |
668 | * @data3: 3rd data parameter to be applied to @fmt. | |
669 | * | |
670 | * Description: | |
671 | * This routine is used by the driver code to add a debugfs log entry to the | |
672 | * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and | |
673 | * @data3 are used like printf when displaying the log. | |
674 | **/ | |
a58cbd52 JS |
675 | inline void |
676 | lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, | |
677 | uint32_t data1, uint32_t data2, uint32_t data3) | |
678 | { | |
923e4b6a | 679 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
a58cbd52 JS |
680 | struct lpfc_debugfs_trc *dtp; |
681 | int index; | |
682 | ||
683 | if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc || | |
684 | !phba || !phba->slow_ring_trc) | |
685 | return; | |
686 | ||
687 | index = atomic_inc_return(&phba->slow_ring_trc_cnt) & | |
688 | (lpfc_debugfs_max_slow_ring_trc - 1); | |
689 | dtp = phba->slow_ring_trc + index; | |
690 | dtp->fmt = fmt; | |
691 | dtp->data1 = data1; | |
692 | dtp->data2 = data2; | |
693 | dtp->data3 = data3; | |
694 | dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); | |
858c9f6c JS |
695 | dtp->jif = jiffies; |
696 | #endif | |
697 | return; | |
698 | } | |
699 | ||
923e4b6a | 700 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
e59058c4 | 701 | /** |
3621a710 | 702 | * lpfc_debugfs_disc_trc_open - Open the discovery trace log |
e59058c4 JS |
703 | * @inode: The inode pointer that contains a vport pointer. |
704 | * @file: The file pointer to attach the log output. | |
705 | * | |
706 | * Description: | |
707 | * This routine is the entry point for the debugfs open file operation. It gets | |
708 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
709 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
710 | * returns a pointer to that log in the private_data field in @file. | |
711 | * | |
712 | * Returns: | |
713 | * This function returns zero if successful. On error it will return an negative | |
714 | * error value. | |
715 | **/ | |
858c9f6c JS |
716 | static int |
717 | lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) | |
718 | { | |
719 | struct lpfc_vport *vport = inode->i_private; | |
720 | struct lpfc_debug *debug; | |
721 | int size; | |
722 | int rc = -ENOMEM; | |
723 | ||
724 | if (!lpfc_debugfs_max_disc_trc) { | |
725 | rc = -ENOSPC; | |
726 | goto out; | |
727 | } | |
728 | ||
729 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
730 | if (!debug) | |
731 | goto out; | |
732 | ||
e59058c4 | 733 | /* Round to page boundary */ |
a58cbd52 | 734 | size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
858c9f6c JS |
735 | size = PAGE_ALIGN(size); |
736 | ||
737 | debug->buffer = kmalloc(size, GFP_KERNEL); | |
738 | if (!debug->buffer) { | |
739 | kfree(debug); | |
740 | goto out; | |
741 | } | |
742 | ||
743 | debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size); | |
744 | file->private_data = debug; | |
745 | ||
746 | rc = 0; | |
747 | out: | |
748 | return rc; | |
749 | } | |
750 | ||
e59058c4 | 751 | /** |
3621a710 | 752 | * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log |
e59058c4 JS |
753 | * @inode: The inode pointer that contains a vport pointer. |
754 | * @file: The file pointer to attach the log output. | |
755 | * | |
756 | * Description: | |
757 | * This routine is the entry point for the debugfs open file operation. It gets | |
758 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
759 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
760 | * returns a pointer to that log in the private_data field in @file. | |
761 | * | |
762 | * Returns: | |
763 | * This function returns zero if successful. On error it will return an negative | |
764 | * error value. | |
765 | **/ | |
a58cbd52 JS |
766 | static int |
767 | lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) | |
768 | { | |
769 | struct lpfc_hba *phba = inode->i_private; | |
770 | struct lpfc_debug *debug; | |
771 | int size; | |
772 | int rc = -ENOMEM; | |
773 | ||
774 | if (!lpfc_debugfs_max_slow_ring_trc) { | |
775 | rc = -ENOSPC; | |
776 | goto out; | |
777 | } | |
778 | ||
779 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
780 | if (!debug) | |
781 | goto out; | |
782 | ||
e59058c4 | 783 | /* Round to page boundary */ |
a58cbd52 JS |
784 | size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); |
785 | size = PAGE_ALIGN(size); | |
786 | ||
787 | debug->buffer = kmalloc(size, GFP_KERNEL); | |
788 | if (!debug->buffer) { | |
789 | kfree(debug); | |
790 | goto out; | |
791 | } | |
792 | ||
793 | debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size); | |
794 | file->private_data = debug; | |
795 | ||
796 | rc = 0; | |
797 | out: | |
798 | return rc; | |
799 | } | |
800 | ||
e59058c4 | 801 | /** |
3621a710 | 802 | * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer |
e59058c4 JS |
803 | * @inode: The inode pointer that contains a vport pointer. |
804 | * @file: The file pointer to attach the log output. | |
805 | * | |
806 | * Description: | |
807 | * This routine is the entry point for the debugfs open file operation. It gets | |
808 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
809 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
810 | * returns a pointer to that log in the private_data field in @file. | |
811 | * | |
812 | * Returns: | |
813 | * This function returns zero if successful. On error it will return an negative | |
814 | * error value. | |
815 | **/ | |
78b2d852 JS |
816 | static int |
817 | lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) | |
818 | { | |
819 | struct lpfc_hba *phba = inode->i_private; | |
820 | struct lpfc_debug *debug; | |
821 | int rc = -ENOMEM; | |
822 | ||
823 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
824 | if (!debug) | |
825 | goto out; | |
826 | ||
e59058c4 | 827 | /* Round to page boundary */ |
78b2d852 JS |
828 | debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); |
829 | if (!debug->buffer) { | |
830 | kfree(debug); | |
831 | goto out; | |
832 | } | |
833 | ||
834 | debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer, | |
835 | LPFC_HBQINFO_SIZE); | |
836 | file->private_data = debug; | |
837 | ||
838 | rc = 0; | |
839 | out: | |
840 | return rc; | |
841 | } | |
842 | ||
e59058c4 | 843 | /** |
3621a710 | 844 | * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer |
e59058c4 JS |
845 | * @inode: The inode pointer that contains a vport pointer. |
846 | * @file: The file pointer to attach the log output. | |
847 | * | |
848 | * Description: | |
849 | * This routine is the entry point for the debugfs open file operation. It gets | |
850 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
851 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
852 | * returns a pointer to that log in the private_data field in @file. | |
853 | * | |
854 | * Returns: | |
855 | * This function returns zero if successful. On error it will return an negative | |
856 | * error value. | |
857 | **/ | |
a58cbd52 | 858 | static int |
c95d6c6c | 859 | lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) |
a58cbd52 JS |
860 | { |
861 | struct lpfc_hba *phba = inode->i_private; | |
862 | struct lpfc_debug *debug; | |
863 | int rc = -ENOMEM; | |
864 | ||
865 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
866 | if (!debug) | |
867 | goto out; | |
868 | ||
e59058c4 | 869 | /* Round to page boundary */ |
c95d6c6c | 870 | debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); |
a58cbd52 JS |
871 | if (!debug->buffer) { |
872 | kfree(debug); | |
873 | goto out; | |
874 | } | |
875 | ||
c95d6c6c JS |
876 | debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer, |
877 | LPFC_DUMPHBASLIM_SIZE); | |
878 | file->private_data = debug; | |
879 | ||
880 | rc = 0; | |
881 | out: | |
882 | return rc; | |
883 | } | |
884 | ||
e59058c4 | 885 | /** |
3621a710 | 886 | * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer |
e59058c4 JS |
887 | * @inode: The inode pointer that contains a vport pointer. |
888 | * @file: The file pointer to attach the log output. | |
889 | * | |
890 | * Description: | |
891 | * This routine is the entry point for the debugfs open file operation. It gets | |
892 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
893 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
894 | * returns a pointer to that log in the private_data field in @file. | |
895 | * | |
896 | * Returns: | |
897 | * This function returns zero if successful. On error it will return an negative | |
898 | * error value. | |
899 | **/ | |
c95d6c6c JS |
900 | static int |
901 | lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) | |
902 | { | |
903 | struct lpfc_hba *phba = inode->i_private; | |
904 | struct lpfc_debug *debug; | |
905 | int rc = -ENOMEM; | |
906 | ||
907 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
908 | if (!debug) | |
909 | goto out; | |
910 | ||
e59058c4 | 911 | /* Round to page boundary */ |
c95d6c6c JS |
912 | debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); |
913 | if (!debug->buffer) { | |
914 | kfree(debug); | |
915 | goto out; | |
916 | } | |
917 | ||
918 | debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer, | |
919 | LPFC_DUMPHOSTSLIM_SIZE); | |
a58cbd52 JS |
920 | file->private_data = debug; |
921 | ||
922 | rc = 0; | |
923 | out: | |
924 | return rc; | |
925 | } | |
926 | ||
e2a0a9d6 JS |
927 | static int |
928 | lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) | |
929 | { | |
930 | struct lpfc_debug *debug; | |
931 | int rc = -ENOMEM; | |
932 | ||
933 | if (!_dump_buf_data) | |
934 | return -EBUSY; | |
935 | ||
936 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
937 | if (!debug) | |
938 | goto out; | |
939 | ||
25985edc | 940 | /* Round to page boundary */ |
6a9c52cf | 941 | printk(KERN_ERR "9059 BLKGRD: %s: _dump_buf_data=0x%p\n", |
e2a0a9d6 JS |
942 | __func__, _dump_buf_data); |
943 | debug->buffer = _dump_buf_data; | |
944 | if (!debug->buffer) { | |
945 | kfree(debug); | |
946 | goto out; | |
947 | } | |
948 | ||
949 | debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; | |
950 | file->private_data = debug; | |
951 | ||
952 | rc = 0; | |
953 | out: | |
954 | return rc; | |
955 | } | |
956 | ||
957 | static int | |
958 | lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) | |
959 | { | |
960 | struct lpfc_debug *debug; | |
961 | int rc = -ENOMEM; | |
962 | ||
963 | if (!_dump_buf_dif) | |
964 | return -EBUSY; | |
965 | ||
966 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
967 | if (!debug) | |
968 | goto out; | |
969 | ||
25985edc | 970 | /* Round to page boundary */ |
6a9c52cf JS |
971 | printk(KERN_ERR "9060 BLKGRD: %s: _dump_buf_dif=0x%p file=%s\n", |
972 | __func__, _dump_buf_dif, file->f_dentry->d_name.name); | |
e2a0a9d6 JS |
973 | debug->buffer = _dump_buf_dif; |
974 | if (!debug->buffer) { | |
975 | kfree(debug); | |
976 | goto out; | |
977 | } | |
978 | ||
979 | debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; | |
980 | file->private_data = debug; | |
981 | ||
982 | rc = 0; | |
983 | out: | |
984 | return rc; | |
985 | } | |
986 | ||
987 | static ssize_t | |
988 | lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, | |
989 | size_t nbytes, loff_t *ppos) | |
990 | { | |
991 | /* | |
992 | * The Data/DIF buffers only save one failing IO | |
993 | * The write op is used as a reset mechanism after an IO has | |
994 | * already been saved to the next one can be saved | |
995 | */ | |
996 | spin_lock(&_dump_buf_lock); | |
997 | ||
998 | memset((void *)_dump_buf_data, 0, | |
999 | ((1 << PAGE_SHIFT) << _dump_buf_data_order)); | |
1000 | memset((void *)_dump_buf_dif, 0, | |
1001 | ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); | |
1002 | ||
1003 | _dump_buf_done = 0; | |
1004 | ||
1005 | spin_unlock(&_dump_buf_lock); | |
1006 | ||
1007 | return nbytes; | |
1008 | } | |
1009 | ||
f9bb2da1 JS |
1010 | static ssize_t |
1011 | lpfc_debugfs_dif_err_read(struct file *file, char __user *buf, | |
1012 | size_t nbytes, loff_t *ppos) | |
1013 | { | |
1014 | struct dentry *dent = file->f_dentry; | |
1015 | struct lpfc_hba *phba = file->private_data; | |
9a6b09c0 | 1016 | char cbuf[32]; |
4ac9b226 | 1017 | uint64_t tmp = 0; |
f9bb2da1 JS |
1018 | int cnt = 0; |
1019 | ||
1020 | if (dent == phba->debug_writeGuard) | |
9a6b09c0 | 1021 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt); |
f9bb2da1 | 1022 | else if (dent == phba->debug_writeApp) |
9a6b09c0 | 1023 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt); |
f9bb2da1 | 1024 | else if (dent == phba->debug_writeRef) |
9a6b09c0 | 1025 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt); |
acd6859b | 1026 | else if (dent == phba->debug_readGuard) |
9a6b09c0 | 1027 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt); |
f9bb2da1 | 1028 | else if (dent == phba->debug_readApp) |
9a6b09c0 | 1029 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt); |
f9bb2da1 | 1030 | else if (dent == phba->debug_readRef) |
9a6b09c0 | 1031 | cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt); |
4ac9b226 JS |
1032 | else if (dent == phba->debug_InjErrNPortID) |
1033 | cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid); | |
1034 | else if (dent == phba->debug_InjErrWWPN) { | |
1035 | memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name)); | |
1036 | tmp = cpu_to_be64(tmp); | |
1037 | cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp); | |
1038 | } else if (dent == phba->debug_InjErrLBA) { | |
1039 | if (phba->lpfc_injerr_lba == (sector_t)(-1)) | |
9a6b09c0 JS |
1040 | cnt = snprintf(cbuf, 32, "off\n"); |
1041 | else | |
4ac9b226 JS |
1042 | cnt = snprintf(cbuf, 32, "0x%llx\n", |
1043 | (uint64_t) phba->lpfc_injerr_lba); | |
9a6b09c0 | 1044 | } else |
f9bb2da1 JS |
1045 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
1046 | "0547 Unknown debugfs error injection entry\n"); | |
1047 | ||
1048 | return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt); | |
1049 | } | |
1050 | ||
1051 | static ssize_t | |
1052 | lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf, | |
1053 | size_t nbytes, loff_t *ppos) | |
1054 | { | |
1055 | struct dentry *dent = file->f_dentry; | |
1056 | struct lpfc_hba *phba = file->private_data; | |
1057 | char dstbuf[32]; | |
4ac9b226 | 1058 | uint64_t tmp = 0; |
f9bb2da1 JS |
1059 | int size; |
1060 | ||
1061 | memset(dstbuf, 0, 32); | |
1062 | size = (nbytes < 32) ? nbytes : 32; | |
1063 | if (copy_from_user(dstbuf, buf, size)) | |
1064 | return 0; | |
1065 | ||
9a6b09c0 JS |
1066 | if (dent == phba->debug_InjErrLBA) { |
1067 | if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) | |
4ac9b226 | 1068 | tmp = (uint64_t)(-1); |
9a6b09c0 JS |
1069 | } |
1070 | ||
4ac9b226 | 1071 | if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) |
f9bb2da1 JS |
1072 | return 0; |
1073 | ||
1074 | if (dent == phba->debug_writeGuard) | |
1075 | phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp; | |
1076 | else if (dent == phba->debug_writeApp) | |
1077 | phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp; | |
1078 | else if (dent == phba->debug_writeRef) | |
1079 | phba->lpfc_injerr_wref_cnt = (uint32_t)tmp; | |
acd6859b JS |
1080 | else if (dent == phba->debug_readGuard) |
1081 | phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp; | |
f9bb2da1 JS |
1082 | else if (dent == phba->debug_readApp) |
1083 | phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp; | |
1084 | else if (dent == phba->debug_readRef) | |
1085 | phba->lpfc_injerr_rref_cnt = (uint32_t)tmp; | |
1086 | else if (dent == phba->debug_InjErrLBA) | |
1087 | phba->lpfc_injerr_lba = (sector_t)tmp; | |
4ac9b226 JS |
1088 | else if (dent == phba->debug_InjErrNPortID) |
1089 | phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID); | |
1090 | else if (dent == phba->debug_InjErrWWPN) { | |
1091 | tmp = cpu_to_be64(tmp); | |
1092 | memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name)); | |
1093 | } else | |
f9bb2da1 JS |
1094 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
1095 | "0548 Unknown debugfs error injection entry\n"); | |
1096 | ||
1097 | return nbytes; | |
1098 | } | |
1099 | ||
1100 | static int | |
1101 | lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file) | |
1102 | { | |
1103 | return 0; | |
1104 | } | |
1105 | ||
e59058c4 | 1106 | /** |
3621a710 | 1107 | * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file |
e59058c4 JS |
1108 | * @inode: The inode pointer that contains a vport pointer. |
1109 | * @file: The file pointer to attach the log output. | |
1110 | * | |
1111 | * Description: | |
1112 | * This routine is the entry point for the debugfs open file operation. It gets | |
1113 | * the vport from the i_private field in @inode, allocates the necessary buffer | |
1114 | * for the log, fills the buffer from the in-memory log for this vport, and then | |
1115 | * returns a pointer to that log in the private_data field in @file. | |
1116 | * | |
1117 | * Returns: | |
1118 | * This function returns zero if successful. On error it will return an negative | |
1119 | * error value. | |
1120 | **/ | |
858c9f6c JS |
1121 | static int |
1122 | lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) | |
1123 | { | |
1124 | struct lpfc_vport *vport = inode->i_private; | |
1125 | struct lpfc_debug *debug; | |
1126 | int rc = -ENOMEM; | |
1127 | ||
1128 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1129 | if (!debug) | |
1130 | goto out; | |
1131 | ||
e59058c4 | 1132 | /* Round to page boundary */ |
858c9f6c JS |
1133 | debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); |
1134 | if (!debug->buffer) { | |
1135 | kfree(debug); | |
1136 | goto out; | |
1137 | } | |
1138 | ||
1139 | debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer, | |
1140 | LPFC_NODELIST_SIZE); | |
1141 | file->private_data = debug; | |
1142 | ||
1143 | rc = 0; | |
1144 | out: | |
1145 | return rc; | |
1146 | } | |
1147 | ||
e59058c4 | 1148 | /** |
3621a710 | 1149 | * lpfc_debugfs_lseek - Seek through a debugfs file |
e59058c4 JS |
1150 | * @file: The file pointer to seek through. |
1151 | * @off: The offset to seek to or the amount to seek by. | |
1152 | * @whence: Indicates how to seek. | |
1153 | * | |
1154 | * Description: | |
1155 | * This routine is the entry point for the debugfs lseek file operation. The | |
1156 | * @whence parameter indicates whether @off is the offset to directly seek to, | |
1157 | * or if it is a value to seek forward or reverse by. This function figures out | |
1158 | * what the new offset of the debugfs file will be and assigns that value to the | |
1159 | * f_pos field of @file. | |
1160 | * | |
1161 | * Returns: | |
1162 | * This function returns the new offset if successful and returns a negative | |
1163 | * error if unable to process the seek. | |
1164 | **/ | |
858c9f6c JS |
1165 | static loff_t |
1166 | lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) | |
1167 | { | |
1168 | struct lpfc_debug *debug; | |
1169 | loff_t pos = -1; | |
1170 | ||
1171 | debug = file->private_data; | |
1172 | ||
1173 | switch (whence) { | |
1174 | case 0: | |
1175 | pos = off; | |
1176 | break; | |
1177 | case 1: | |
1178 | pos = file->f_pos + off; | |
1179 | break; | |
1180 | case 2: | |
1181 | pos = debug->len - off; | |
1182 | } | |
1183 | return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos); | |
1184 | } | |
1185 | ||
e59058c4 | 1186 | /** |
3621a710 | 1187 | * lpfc_debugfs_read - Read a debugfs file |
e59058c4 JS |
1188 | * @file: The file pointer to read from. |
1189 | * @buf: The buffer to copy the data to. | |
1190 | * @nbytes: The number of bytes to read. | |
1191 | * @ppos: The position in the file to start reading from. | |
1192 | * | |
1193 | * Description: | |
1194 | * This routine reads data from from the buffer indicated in the private_data | |
1195 | * field of @file. It will start reading at @ppos and copy up to @nbytes of | |
1196 | * data to @buf. | |
1197 | * | |
1198 | * Returns: | |
1199 | * This function returns the amount of data that was read (this could be less | |
1200 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1201 | **/ | |
858c9f6c JS |
1202 | static ssize_t |
1203 | lpfc_debugfs_read(struct file *file, char __user *buf, | |
1204 | size_t nbytes, loff_t *ppos) | |
1205 | { | |
1206 | struct lpfc_debug *debug = file->private_data; | |
2a622bfb | 1207 | |
858c9f6c JS |
1208 | return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer, |
1209 | debug->len); | |
1210 | } | |
1211 | ||
e59058c4 | 1212 | /** |
3621a710 | 1213 | * lpfc_debugfs_release - Release the buffer used to store debugfs file data |
e59058c4 JS |
1214 | * @inode: The inode pointer that contains a vport pointer. (unused) |
1215 | * @file: The file pointer that contains the buffer to release. | |
1216 | * | |
1217 | * Description: | |
1218 | * This routine frees the buffer that was allocated when the debugfs file was | |
1219 | * opened. | |
1220 | * | |
1221 | * Returns: | |
1222 | * This function returns zero. | |
1223 | **/ | |
858c9f6c JS |
1224 | static int |
1225 | lpfc_debugfs_release(struct inode *inode, struct file *file) | |
1226 | { | |
1227 | struct lpfc_debug *debug = file->private_data; | |
1228 | ||
1229 | kfree(debug->buffer); | |
1230 | kfree(debug); | |
1231 | ||
1232 | return 0; | |
1233 | } | |
1234 | ||
e2a0a9d6 JS |
1235 | static int |
1236 | lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) | |
1237 | { | |
1238 | struct lpfc_debug *debug = file->private_data; | |
1239 | ||
1240 | debug->buffer = NULL; | |
1241 | kfree(debug); | |
1242 | ||
1243 | return 0; | |
1244 | } | |
1245 | ||
2a622bfb | 1246 | /* |
86a80846 | 1247 | * --------------------------------- |
2a622bfb | 1248 | * iDiag debugfs file access methods |
86a80846 | 1249 | * --------------------------------- |
2a622bfb | 1250 | * |
86a80846 JS |
1251 | * All access methods are through the proper SLI4 PCI function's debugfs |
1252 | * iDiag directory: | |
2a622bfb | 1253 | * |
86a80846 | 1254 | * /sys/kernel/debug/lpfc/fn<#>/iDiag |
2a622bfb JS |
1255 | */ |
1256 | ||
1257 | /** | |
1258 | * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space | |
1259 | * @buf: The pointer to the user space buffer. | |
1260 | * @nbytes: The number of bytes in the user space buffer. | |
1261 | * @idiag_cmd: pointer to the idiag command struct. | |
1262 | * | |
1263 | * This routine reads data from debugfs user space buffer and parses the | |
1264 | * buffer for getting the idiag command and arguments. The while space in | |
1265 | * between the set of data is used as the parsing separator. | |
1266 | * | |
1267 | * This routine returns 0 when successful, it returns proper error code | |
1268 | * back to the user space in error conditions. | |
1269 | */ | |
1270 | static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes, | |
1271 | struct lpfc_idiag_cmd *idiag_cmd) | |
1272 | { | |
1273 | char mybuf[64]; | |
1274 | char *pbuf, *step_str; | |
b11d48e8 SB |
1275 | int i; |
1276 | size_t bsize; | |
2a622bfb JS |
1277 | |
1278 | /* Protect copy from user */ | |
1279 | if (!access_ok(VERIFY_READ, buf, nbytes)) | |
1280 | return -EFAULT; | |
1281 | ||
1282 | memset(mybuf, 0, sizeof(mybuf)); | |
1283 | memset(idiag_cmd, 0, sizeof(*idiag_cmd)); | |
1284 | bsize = min(nbytes, (sizeof(mybuf)-1)); | |
1285 | ||
1286 | if (copy_from_user(mybuf, buf, bsize)) | |
1287 | return -EFAULT; | |
1288 | pbuf = &mybuf[0]; | |
1289 | step_str = strsep(&pbuf, "\t "); | |
1290 | ||
1291 | /* The opcode must present */ | |
1292 | if (!step_str) | |
1293 | return -EINVAL; | |
1294 | ||
1295 | idiag_cmd->opcode = simple_strtol(step_str, NULL, 0); | |
1296 | if (idiag_cmd->opcode == 0) | |
1297 | return -EINVAL; | |
1298 | ||
1299 | for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) { | |
1300 | step_str = strsep(&pbuf, "\t "); | |
1301 | if (!step_str) | |
86a80846 | 1302 | return i; |
2a622bfb JS |
1303 | idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0); |
1304 | } | |
86a80846 | 1305 | return i; |
2a622bfb JS |
1306 | } |
1307 | ||
1308 | /** | |
1309 | * lpfc_idiag_open - idiag open debugfs | |
1310 | * @inode: The inode pointer that contains a pointer to phba. | |
1311 | * @file: The file pointer to attach the file operation. | |
1312 | * | |
1313 | * Description: | |
1314 | * This routine is the entry point for the debugfs open file operation. It | |
1315 | * gets the reference to phba from the i_private field in @inode, it then | |
1316 | * allocates buffer for the file operation, performs the necessary PCI config | |
1317 | * space read into the allocated buffer according to the idiag user command | |
1318 | * setup, and then returns a pointer to buffer in the private_data field in | |
1319 | * @file. | |
1320 | * | |
1321 | * Returns: | |
1322 | * This function returns zero if successful. On error it will return an | |
1323 | * negative error value. | |
1324 | **/ | |
1325 | static int | |
1326 | lpfc_idiag_open(struct inode *inode, struct file *file) | |
1327 | { | |
1328 | struct lpfc_debug *debug; | |
1329 | ||
1330 | debug = kmalloc(sizeof(*debug), GFP_KERNEL); | |
1331 | if (!debug) | |
1332 | return -ENOMEM; | |
1333 | ||
1334 | debug->i_private = inode->i_private; | |
1335 | debug->buffer = NULL; | |
1336 | file->private_data = debug; | |
1337 | ||
1338 | return 0; | |
1339 | } | |
1340 | ||
1341 | /** | |
1342 | * lpfc_idiag_release - Release idiag access file operation | |
1343 | * @inode: The inode pointer that contains a vport pointer. (unused) | |
1344 | * @file: The file pointer that contains the buffer to release. | |
1345 | * | |
1346 | * Description: | |
1347 | * This routine is the generic release routine for the idiag access file | |
1348 | * operation, it frees the buffer that was allocated when the debugfs file | |
1349 | * was opened. | |
1350 | * | |
1351 | * Returns: | |
1352 | * This function returns zero. | |
1353 | **/ | |
1354 | static int | |
1355 | lpfc_idiag_release(struct inode *inode, struct file *file) | |
1356 | { | |
1357 | struct lpfc_debug *debug = file->private_data; | |
1358 | ||
1359 | /* Free the buffers to the file operation */ | |
1360 | kfree(debug->buffer); | |
1361 | kfree(debug); | |
1362 | ||
1363 | return 0; | |
1364 | } | |
1365 | ||
1366 | /** | |
1367 | * lpfc_idiag_cmd_release - Release idiag cmd access file operation | |
1368 | * @inode: The inode pointer that contains a vport pointer. (unused) | |
1369 | * @file: The file pointer that contains the buffer to release. | |
1370 | * | |
1371 | * Description: | |
1372 | * This routine frees the buffer that was allocated when the debugfs file | |
1373 | * was opened. It also reset the fields in the idiag command struct in the | |
86a80846 | 1374 | * case of command for write operation. |
2a622bfb JS |
1375 | * |
1376 | * Returns: | |
1377 | * This function returns zero. | |
1378 | **/ | |
1379 | static int | |
1380 | lpfc_idiag_cmd_release(struct inode *inode, struct file *file) | |
1381 | { | |
1382 | struct lpfc_debug *debug = file->private_data; | |
1383 | ||
86a80846 JS |
1384 | if (debug->op == LPFC_IDIAG_OP_WR) { |
1385 | switch (idiag.cmd.opcode) { | |
1386 | case LPFC_IDIAG_CMD_PCICFG_WR: | |
1387 | case LPFC_IDIAG_CMD_PCICFG_ST: | |
1388 | case LPFC_IDIAG_CMD_PCICFG_CL: | |
1389 | case LPFC_IDIAG_CMD_QUEACC_WR: | |
1390 | case LPFC_IDIAG_CMD_QUEACC_ST: | |
1391 | case LPFC_IDIAG_CMD_QUEACC_CL: | |
2a622bfb | 1392 | memset(&idiag, 0, sizeof(idiag)); |
86a80846 JS |
1393 | break; |
1394 | default: | |
1395 | break; | |
1396 | } | |
1397 | } | |
2a622bfb JS |
1398 | |
1399 | /* Free the buffers to the file operation */ | |
1400 | kfree(debug->buffer); | |
1401 | kfree(debug); | |
1402 | ||
1403 | return 0; | |
1404 | } | |
1405 | ||
1406 | /** | |
1407 | * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg | |
1408 | * @file: The file pointer to read from. | |
1409 | * @buf: The buffer to copy the data to. | |
1410 | * @nbytes: The number of bytes to read. | |
1411 | * @ppos: The position in the file to start reading from. | |
1412 | * | |
1413 | * Description: | |
1414 | * This routine reads data from the @phba pci config space according to the | |
1415 | * idiag command, and copies to user @buf. Depending on the PCI config space | |
1416 | * read command setup, it does either a single register read of a byte | |
1417 | * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all | |
1418 | * registers from the 4K extended PCI config space. | |
1419 | * | |
1420 | * Returns: | |
1421 | * This function returns the amount of data that was read (this could be less | |
1422 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1423 | **/ | |
1424 | static ssize_t | |
1425 | lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes, | |
1426 | loff_t *ppos) | |
1427 | { | |
1428 | struct lpfc_debug *debug = file->private_data; | |
1429 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1430 | int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE; | |
1431 | int where, count; | |
1432 | char *pbuffer; | |
1433 | struct pci_dev *pdev; | |
1434 | uint32_t u32val; | |
1435 | uint16_t u16val; | |
1436 | uint8_t u8val; | |
1437 | ||
1438 | pdev = phba->pcidev; | |
1439 | if (!pdev) | |
1440 | return 0; | |
1441 | ||
1442 | /* This is a user read operation */ | |
1443 | debug->op = LPFC_IDIAG_OP_RD; | |
1444 | ||
1445 | if (!debug->buffer) | |
1446 | debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL); | |
1447 | if (!debug->buffer) | |
1448 | return 0; | |
1449 | pbuffer = debug->buffer; | |
1450 | ||
1451 | if (*ppos) | |
1452 | return 0; | |
1453 | ||
1454 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { | |
b76f2dc9 JS |
1455 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
1456 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; | |
2a622bfb JS |
1457 | } else |
1458 | return 0; | |
1459 | ||
1460 | /* Read single PCI config space register */ | |
1461 | switch (count) { | |
1462 | case SIZE_U8: /* byte (8 bits) */ | |
1463 | pci_read_config_byte(pdev, where, &u8val); | |
1464 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1465 | "%03x: %02x\n", where, u8val); | |
1466 | break; | |
1467 | case SIZE_U16: /* word (16 bits) */ | |
1468 | pci_read_config_word(pdev, where, &u16val); | |
1469 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1470 | "%03x: %04x\n", where, u16val); | |
1471 | break; | |
1472 | case SIZE_U32: /* double word (32 bits) */ | |
1473 | pci_read_config_dword(pdev, where, &u32val); | |
1474 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1475 | "%03x: %08x\n", where, u32val); | |
1476 | break; | |
86a80846 | 1477 | case LPFC_PCI_CFG_BROWSE: /* browse all */ |
2a622bfb JS |
1478 | goto pcicfg_browse; |
1479 | break; | |
1480 | default: | |
1481 | /* illegal count */ | |
1482 | len = 0; | |
1483 | break; | |
1484 | } | |
1485 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1486 | ||
1487 | pcicfg_browse: | |
1488 | ||
1489 | /* Browse all PCI config space registers */ | |
1490 | offset_label = idiag.offset.last_rd; | |
1491 | offset = offset_label; | |
1492 | ||
1493 | /* Read PCI config space */ | |
1494 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1495 | "%03x: ", offset_label); | |
1496 | while (index > 0) { | |
1497 | pci_read_config_dword(pdev, offset, &u32val); | |
1498 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1499 | "%08x ", u32val); | |
1500 | offset += sizeof(uint32_t); | |
b76f2dc9 JS |
1501 | if (offset >= LPFC_PCI_CFG_SIZE) { |
1502 | len += snprintf(pbuffer+len, | |
1503 | LPFC_PCI_CFG_SIZE-len, "\n"); | |
1504 | break; | |
1505 | } | |
2a622bfb JS |
1506 | index -= sizeof(uint32_t); |
1507 | if (!index) | |
1508 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1509 | "\n"); | |
1510 | else if (!(index % (8 * sizeof(uint32_t)))) { | |
1511 | offset_label += (8 * sizeof(uint32_t)); | |
1512 | len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len, | |
1513 | "\n%03x: ", offset_label); | |
1514 | } | |
1515 | } | |
1516 | ||
1517 | /* Set up the offset for next portion of pci cfg read */ | |
b76f2dc9 JS |
1518 | if (index == 0) { |
1519 | idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE; | |
1520 | if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE) | |
1521 | idiag.offset.last_rd = 0; | |
1522 | } else | |
2a622bfb JS |
1523 | idiag.offset.last_rd = 0; |
1524 | ||
1525 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1526 | } | |
1527 | ||
1528 | /** | |
1529 | * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands | |
1530 | * @file: The file pointer to read from. | |
1531 | * @buf: The buffer to copy the user data from. | |
1532 | * @nbytes: The number of bytes to get. | |
1533 | * @ppos: The position in the file to start reading from. | |
1534 | * | |
1535 | * This routine get the debugfs idiag command struct from user space and | |
1536 | * then perform the syntax check for PCI config space read or write command | |
1537 | * accordingly. In the case of PCI config space read command, it sets up | |
1538 | * the command in the idiag command struct for the debugfs read operation. | |
1539 | * In the case of PCI config space write operation, it executes the write | |
1540 | * operation into the PCI config space accordingly. | |
1541 | * | |
1542 | * It returns the @nbytges passing in from debugfs user space when successful. | |
1543 | * In case of error conditions, it returns proper error code back to the user | |
1544 | * space. | |
1545 | */ | |
1546 | static ssize_t | |
1547 | lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf, | |
1548 | size_t nbytes, loff_t *ppos) | |
1549 | { | |
1550 | struct lpfc_debug *debug = file->private_data; | |
1551 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1552 | uint32_t where, value, count; | |
1553 | uint32_t u32val; | |
1554 | uint16_t u16val; | |
1555 | uint8_t u8val; | |
1556 | struct pci_dev *pdev; | |
1557 | int rc; | |
1558 | ||
1559 | pdev = phba->pcidev; | |
1560 | if (!pdev) | |
1561 | return -EFAULT; | |
1562 | ||
1563 | /* This is a user write operation */ | |
1564 | debug->op = LPFC_IDIAG_OP_WR; | |
1565 | ||
1566 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
86a80846 | 1567 | if (rc < 0) |
2a622bfb JS |
1568 | return rc; |
1569 | ||
1570 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) { | |
86a80846 JS |
1571 | /* Sanity check on PCI config read command line arguments */ |
1572 | if (rc != LPFC_PCI_CFG_RD_CMD_ARG) | |
1573 | goto error_out; | |
2a622bfb | 1574 | /* Read command from PCI config space, set up command fields */ |
b76f2dc9 JS |
1575 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
1576 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; | |
86a80846 JS |
1577 | if (count == LPFC_PCI_CFG_BROWSE) { |
1578 | if (where % sizeof(uint32_t)) | |
2a622bfb | 1579 | goto error_out; |
86a80846 JS |
1580 | /* Starting offset to browse */ |
1581 | idiag.offset.last_rd = where; | |
2a622bfb JS |
1582 | } else if ((count != sizeof(uint8_t)) && |
1583 | (count != sizeof(uint16_t)) && | |
1584 | (count != sizeof(uint32_t))) | |
1585 | goto error_out; | |
1586 | if (count == sizeof(uint8_t)) { | |
1587 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) | |
1588 | goto error_out; | |
1589 | if (where % sizeof(uint8_t)) | |
1590 | goto error_out; | |
1591 | } | |
1592 | if (count == sizeof(uint16_t)) { | |
1593 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) | |
1594 | goto error_out; | |
1595 | if (where % sizeof(uint16_t)) | |
1596 | goto error_out; | |
1597 | } | |
1598 | if (count == sizeof(uint32_t)) { | |
1599 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) | |
1600 | goto error_out; | |
1601 | if (where % sizeof(uint32_t)) | |
1602 | goto error_out; | |
1603 | } | |
1604 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR || | |
1605 | idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST || | |
1606 | idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
86a80846 JS |
1607 | /* Sanity check on PCI config write command line arguments */ |
1608 | if (rc != LPFC_PCI_CFG_WR_CMD_ARG) | |
1609 | goto error_out; | |
2a622bfb | 1610 | /* Write command to PCI config space, read-modify-write */ |
b76f2dc9 JS |
1611 | where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX]; |
1612 | count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX]; | |
1613 | value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX]; | |
2a622bfb JS |
1614 | /* Sanity checks */ |
1615 | if ((count != sizeof(uint8_t)) && | |
1616 | (count != sizeof(uint16_t)) && | |
1617 | (count != sizeof(uint32_t))) | |
1618 | goto error_out; | |
1619 | if (count == sizeof(uint8_t)) { | |
1620 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t)) | |
1621 | goto error_out; | |
1622 | if (where % sizeof(uint8_t)) | |
1623 | goto error_out; | |
1624 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
1625 | pci_write_config_byte(pdev, where, | |
1626 | (uint8_t)value); | |
1627 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
1628 | rc = pci_read_config_byte(pdev, where, &u8val); | |
1629 | if (!rc) { | |
1630 | u8val |= (uint8_t)value; | |
1631 | pci_write_config_byte(pdev, where, | |
1632 | u8val); | |
1633 | } | |
1634 | } | |
1635 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
1636 | rc = pci_read_config_byte(pdev, where, &u8val); | |
1637 | if (!rc) { | |
1638 | u8val &= (uint8_t)(~value); | |
1639 | pci_write_config_byte(pdev, where, | |
1640 | u8val); | |
1641 | } | |
1642 | } | |
1643 | } | |
1644 | if (count == sizeof(uint16_t)) { | |
1645 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t)) | |
1646 | goto error_out; | |
1647 | if (where % sizeof(uint16_t)) | |
1648 | goto error_out; | |
1649 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
1650 | pci_write_config_word(pdev, where, | |
1651 | (uint16_t)value); | |
1652 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
1653 | rc = pci_read_config_word(pdev, where, &u16val); | |
1654 | if (!rc) { | |
1655 | u16val |= (uint16_t)value; | |
1656 | pci_write_config_word(pdev, where, | |
1657 | u16val); | |
1658 | } | |
1659 | } | |
1660 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
1661 | rc = pci_read_config_word(pdev, where, &u16val); | |
1662 | if (!rc) { | |
1663 | u16val &= (uint16_t)(~value); | |
1664 | pci_write_config_word(pdev, where, | |
1665 | u16val); | |
1666 | } | |
1667 | } | |
1668 | } | |
1669 | if (count == sizeof(uint32_t)) { | |
1670 | if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t)) | |
1671 | goto error_out; | |
1672 | if (where % sizeof(uint32_t)) | |
1673 | goto error_out; | |
1674 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR) | |
1675 | pci_write_config_dword(pdev, where, value); | |
1676 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) { | |
1677 | rc = pci_read_config_dword(pdev, where, | |
1678 | &u32val); | |
1679 | if (!rc) { | |
1680 | u32val |= value; | |
1681 | pci_write_config_dword(pdev, where, | |
1682 | u32val); | |
1683 | } | |
1684 | } | |
1685 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) { | |
1686 | rc = pci_read_config_dword(pdev, where, | |
1687 | &u32val); | |
1688 | if (!rc) { | |
1689 | u32val &= ~value; | |
1690 | pci_write_config_dword(pdev, where, | |
1691 | u32val); | |
1692 | } | |
1693 | } | |
1694 | } | |
1695 | } else | |
1696 | /* All other opecodes are illegal for now */ | |
1697 | goto error_out; | |
1698 | ||
1699 | return nbytes; | |
1700 | error_out: | |
1701 | memset(&idiag, 0, sizeof(idiag)); | |
1702 | return -EINVAL; | |
1703 | } | |
1704 | ||
b76f2dc9 JS |
1705 | /** |
1706 | * lpfc_idiag_baracc_read - idiag debugfs pci bar access read | |
1707 | * @file: The file pointer to read from. | |
1708 | * @buf: The buffer to copy the data to. | |
1709 | * @nbytes: The number of bytes to read. | |
1710 | * @ppos: The position in the file to start reading from. | |
1711 | * | |
1712 | * Description: | |
1713 | * This routine reads data from the @phba pci bar memory mapped space | |
1714 | * according to the idiag command, and copies to user @buf. | |
1715 | * | |
1716 | * Returns: | |
1717 | * This function returns the amount of data that was read (this could be less | |
1718 | * than @nbytes if the end of the file was reached) or a negative error value. | |
1719 | **/ | |
1720 | static ssize_t | |
1721 | lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes, | |
1722 | loff_t *ppos) | |
1723 | { | |
1724 | struct lpfc_debug *debug = file->private_data; | |
1725 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1726 | int offset_label, offset, offset_run, len = 0, index; | |
1727 | int bar_num, acc_range, bar_size; | |
1728 | char *pbuffer; | |
1729 | void __iomem *mem_mapped_bar; | |
1730 | uint32_t if_type; | |
1731 | struct pci_dev *pdev; | |
1732 | uint32_t u32val; | |
1733 | ||
1734 | pdev = phba->pcidev; | |
1735 | if (!pdev) | |
1736 | return 0; | |
1737 | ||
1738 | /* This is a user read operation */ | |
1739 | debug->op = LPFC_IDIAG_OP_RD; | |
1740 | ||
1741 | if (!debug->buffer) | |
1742 | debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL); | |
1743 | if (!debug->buffer) | |
1744 | return 0; | |
1745 | pbuffer = debug->buffer; | |
1746 | ||
1747 | if (*ppos) | |
1748 | return 0; | |
1749 | ||
1750 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { | |
1751 | bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; | |
1752 | offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; | |
1753 | acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; | |
1754 | bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; | |
1755 | } else | |
1756 | return 0; | |
1757 | ||
1758 | if (acc_range == 0) | |
1759 | return 0; | |
1760 | ||
1761 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
1762 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { | |
1763 | if (bar_num == IDIAG_BARACC_BAR_0) | |
1764 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
1765 | else if (bar_num == IDIAG_BARACC_BAR_1) | |
1766 | mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; | |
1767 | else if (bar_num == IDIAG_BARACC_BAR_2) | |
1768 | mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; | |
1769 | else | |
1770 | return 0; | |
1771 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
1772 | if (bar_num == IDIAG_BARACC_BAR_0) | |
1773 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
1774 | else | |
1775 | return 0; | |
1776 | } else | |
1777 | return 0; | |
1778 | ||
1779 | /* Read single PCI bar space register */ | |
1780 | if (acc_range == SINGLE_WORD) { | |
1781 | offset_run = offset; | |
1782 | u32val = readl(mem_mapped_bar + offset_run); | |
1783 | len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
1784 | "%05x: %08x\n", offset_run, u32val); | |
1785 | } else | |
1786 | goto baracc_browse; | |
1787 | ||
1788 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1789 | ||
1790 | baracc_browse: | |
1791 | ||
1792 | /* Browse all PCI bar space registers */ | |
1793 | offset_label = idiag.offset.last_rd; | |
1794 | offset_run = offset_label; | |
1795 | ||
1796 | /* Read PCI bar memory mapped space */ | |
1797 | len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
1798 | "%05x: ", offset_label); | |
1799 | index = LPFC_PCI_BAR_RD_SIZE; | |
1800 | while (index > 0) { | |
1801 | u32val = readl(mem_mapped_bar + offset_run); | |
1802 | len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
1803 | "%08x ", u32val); | |
1804 | offset_run += sizeof(uint32_t); | |
1805 | if (acc_range == LPFC_PCI_BAR_BROWSE) { | |
1806 | if (offset_run >= bar_size) { | |
1807 | len += snprintf(pbuffer+len, | |
1808 | LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); | |
1809 | break; | |
1810 | } | |
1811 | } else { | |
1812 | if (offset_run >= offset + | |
1813 | (acc_range * sizeof(uint32_t))) { | |
1814 | len += snprintf(pbuffer+len, | |
1815 | LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); | |
1816 | break; | |
1817 | } | |
1818 | } | |
1819 | index -= sizeof(uint32_t); | |
1820 | if (!index) | |
1821 | len += snprintf(pbuffer+len, | |
1822 | LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n"); | |
1823 | else if (!(index % (8 * sizeof(uint32_t)))) { | |
1824 | offset_label += (8 * sizeof(uint32_t)); | |
1825 | len += snprintf(pbuffer+len, | |
1826 | LPFC_PCI_BAR_RD_BUF_SIZE-len, | |
1827 | "\n%05x: ", offset_label); | |
1828 | } | |
1829 | } | |
1830 | ||
1831 | /* Set up the offset for next portion of pci bar read */ | |
1832 | if (index == 0) { | |
1833 | idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE; | |
1834 | if (acc_range == LPFC_PCI_BAR_BROWSE) { | |
1835 | if (idiag.offset.last_rd >= bar_size) | |
1836 | idiag.offset.last_rd = 0; | |
1837 | } else { | |
1838 | if (offset_run >= offset + | |
1839 | (acc_range * sizeof(uint32_t))) | |
1840 | idiag.offset.last_rd = offset; | |
1841 | } | |
1842 | } else { | |
1843 | if (acc_range == LPFC_PCI_BAR_BROWSE) | |
1844 | idiag.offset.last_rd = 0; | |
1845 | else | |
1846 | idiag.offset.last_rd = offset; | |
1847 | } | |
1848 | ||
1849 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
1850 | } | |
1851 | ||
1852 | /** | |
1853 | * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands | |
1854 | * @file: The file pointer to read from. | |
1855 | * @buf: The buffer to copy the user data from. | |
1856 | * @nbytes: The number of bytes to get. | |
1857 | * @ppos: The position in the file to start reading from. | |
1858 | * | |
1859 | * This routine get the debugfs idiag command struct from user space and | |
1860 | * then perform the syntax check for PCI bar memory mapped space read or | |
1861 | * write command accordingly. In the case of PCI bar memory mapped space | |
1862 | * read command, it sets up the command in the idiag command struct for | |
1863 | * the debugfs read operation. In the case of PCI bar memorpy mapped space | |
1864 | * write operation, it executes the write operation into the PCI bar memory | |
1865 | * mapped space accordingly. | |
1866 | * | |
1867 | * It returns the @nbytges passing in from debugfs user space when successful. | |
1868 | * In case of error conditions, it returns proper error code back to the user | |
1869 | * space. | |
1870 | */ | |
1871 | static ssize_t | |
1872 | lpfc_idiag_baracc_write(struct file *file, const char __user *buf, | |
1873 | size_t nbytes, loff_t *ppos) | |
1874 | { | |
1875 | struct lpfc_debug *debug = file->private_data; | |
1876 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
1877 | uint32_t bar_num, bar_size, offset, value, acc_range; | |
1878 | struct pci_dev *pdev; | |
1879 | void __iomem *mem_mapped_bar; | |
1880 | uint32_t if_type; | |
1881 | uint32_t u32val; | |
1882 | int rc; | |
1883 | ||
1884 | pdev = phba->pcidev; | |
1885 | if (!pdev) | |
1886 | return -EFAULT; | |
1887 | ||
1888 | /* This is a user write operation */ | |
1889 | debug->op = LPFC_IDIAG_OP_WR; | |
1890 | ||
1891 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
1892 | if (rc < 0) | |
1893 | return rc; | |
1894 | ||
1895 | if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); | |
1896 | bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX]; | |
1897 | ||
1898 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { | |
1899 | if ((bar_num != IDIAG_BARACC_BAR_0) && | |
1900 | (bar_num != IDIAG_BARACC_BAR_1) && | |
1901 | (bar_num != IDIAG_BARACC_BAR_2)) | |
1902 | goto error_out; | |
1903 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
1904 | if (bar_num != IDIAG_BARACC_BAR_0) | |
1905 | goto error_out; | |
1906 | } else | |
1907 | goto error_out; | |
1908 | ||
1909 | if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { | |
1910 | if (bar_num == IDIAG_BARACC_BAR_0) { | |
1911 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
1912 | LPFC_PCI_IF0_BAR0_SIZE; | |
1913 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
1914 | } else if (bar_num == IDIAG_BARACC_BAR_1) { | |
1915 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
1916 | LPFC_PCI_IF0_BAR1_SIZE; | |
1917 | mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p; | |
1918 | } else if (bar_num == IDIAG_BARACC_BAR_2) { | |
1919 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
1920 | LPFC_PCI_IF0_BAR2_SIZE; | |
1921 | mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p; | |
1922 | } else | |
1923 | goto error_out; | |
1924 | } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { | |
1925 | if (bar_num == IDIAG_BARACC_BAR_0) { | |
1926 | idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] = | |
1927 | LPFC_PCI_IF2_BAR0_SIZE; | |
1928 | mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p; | |
1929 | } else | |
1930 | goto error_out; | |
1931 | } else | |
1932 | goto error_out; | |
1933 | ||
1934 | offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX]; | |
1935 | if (offset % sizeof(uint32_t)) | |
1936 | goto error_out; | |
1937 | ||
1938 | bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX]; | |
1939 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) { | |
1940 | /* Sanity check on PCI config read command line arguments */ | |
1941 | if (rc != LPFC_PCI_BAR_RD_CMD_ARG) | |
1942 | goto error_out; | |
1943 | acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX]; | |
1944 | if (acc_range == LPFC_PCI_BAR_BROWSE) { | |
1945 | if (offset > bar_size - sizeof(uint32_t)) | |
1946 | goto error_out; | |
1947 | /* Starting offset to browse */ | |
1948 | idiag.offset.last_rd = offset; | |
1949 | } else if (acc_range > SINGLE_WORD) { | |
1950 | if (offset + acc_range * sizeof(uint32_t) > bar_size) | |
1951 | goto error_out; | |
1952 | /* Starting offset to browse */ | |
1953 | idiag.offset.last_rd = offset; | |
1954 | } else if (acc_range != SINGLE_WORD) | |
1955 | goto error_out; | |
1956 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR || | |
1957 | idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST || | |
1958 | idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { | |
1959 | /* Sanity check on PCI bar write command line arguments */ | |
1960 | if (rc != LPFC_PCI_BAR_WR_CMD_ARG) | |
1961 | goto error_out; | |
1962 | /* Write command to PCI bar space, read-modify-write */ | |
1963 | acc_range = SINGLE_WORD; | |
1964 | value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX]; | |
1965 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) { | |
1966 | writel(value, mem_mapped_bar + offset); | |
1967 | readl(mem_mapped_bar + offset); | |
1968 | } | |
1969 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) { | |
1970 | u32val = readl(mem_mapped_bar + offset); | |
1971 | u32val |= value; | |
1972 | writel(u32val, mem_mapped_bar + offset); | |
1973 | readl(mem_mapped_bar + offset); | |
1974 | } | |
1975 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) { | |
1976 | u32val = readl(mem_mapped_bar + offset); | |
1977 | u32val &= ~value; | |
1978 | writel(u32val, mem_mapped_bar + offset); | |
1979 | readl(mem_mapped_bar + offset); | |
1980 | } | |
1981 | } else | |
1982 | /* All other opecodes are illegal for now */ | |
1983 | goto error_out; | |
1984 | ||
1985 | return nbytes; | |
1986 | error_out: | |
1987 | memset(&idiag, 0, sizeof(idiag)); | |
1988 | return -EINVAL; | |
1989 | } | |
1990 | ||
2a622bfb JS |
1991 | /** |
1992 | * lpfc_idiag_queinfo_read - idiag debugfs read queue information | |
1993 | * @file: The file pointer to read from. | |
1994 | * @buf: The buffer to copy the data to. | |
1995 | * @nbytes: The number of bytes to read. | |
1996 | * @ppos: The position in the file to start reading from. | |
1997 | * | |
1998 | * Description: | |
1999 | * This routine reads data from the @phba SLI4 PCI function queue information, | |
2000 | * and copies to user @buf. | |
2001 | * | |
2002 | * Returns: | |
2003 | * This function returns the amount of data that was read (this could be less | |
2004 | * than @nbytes if the end of the file was reached) or a negative error value. | |
2005 | **/ | |
2006 | static ssize_t | |
2007 | lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes, | |
2008 | loff_t *ppos) | |
2009 | { | |
2010 | struct lpfc_debug *debug = file->private_data; | |
2011 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
c85a65ac | 2012 | int len = 0; |
2a622bfb | 2013 | char *pbuffer; |
c85a65ac JS |
2014 | int x, cnt; |
2015 | int max_cnt; | |
2016 | struct lpfc_queue *qp = NULL; | |
2017 | ||
2a622bfb JS |
2018 | |
2019 | if (!debug->buffer) | |
2020 | debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL); | |
2021 | if (!debug->buffer) | |
2022 | return 0; | |
2023 | pbuffer = debug->buffer; | |
c85a65ac | 2024 | max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 128; |
2a622bfb JS |
2025 | |
2026 | if (*ppos) | |
2027 | return 0; | |
2028 | ||
c85a65ac JS |
2029 | spin_lock_irq(&phba->hbalock); |
2030 | ||
2031 | /* Fast-path event queue */ | |
2032 | if (phba->sli4_hba.hba_eq && phba->cfg_fcp_io_channel) { | |
2033 | cnt = phba->cfg_fcp_io_channel; | |
2034 | ||
2035 | for (x = 0; x < cnt; x++) { | |
2036 | ||
2037 | /* Fast-path EQ */ | |
2038 | qp = phba->sli4_hba.hba_eq[x]; | |
2039 | if (!qp) | |
2040 | goto proc_cq; | |
2041 | ||
2042 | len += snprintf(pbuffer+len, | |
2043 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2044 | "\nHBA EQ info: " | |
2045 | "EQ-STAT[max:x%x noE:x%x " | |
2046 | "bs:x%x proc:x%llx]\n", | |
2047 | qp->q_cnt_1, qp->q_cnt_2, | |
2048 | qp->q_cnt_3, qp->q_cnt_4); | |
2049 | ||
2050 | len += snprintf(pbuffer+len, | |
2051 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2052 | "EQID[%02d], " | |
2053 | "QE-CNT[%04d], QE-SIZE[%04d], " | |
2054 | "HOST-IDX[%04d], PORT-IDX[%04d]", | |
2055 | qp->queue_id, | |
2056 | qp->entry_count, | |
2057 | qp->entry_size, | |
2058 | qp->host_index, | |
2059 | qp->hba_index); | |
2060 | ||
2061 | ||
2062 | /* Reset max counter */ | |
2063 | qp->EQ_max_eqe = 0; | |
2064 | ||
2065 | len += snprintf(pbuffer+len, | |
2066 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2067 | if (len >= max_cnt) | |
2068 | goto too_big; | |
2069 | proc_cq: | |
2070 | /* Fast-path FCP CQ */ | |
2071 | qp = phba->sli4_hba.fcp_cq[x]; | |
2072 | len += snprintf(pbuffer+len, | |
2073 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2074 | "\tFCP CQ info: "); | |
2075 | len += snprintf(pbuffer+len, | |
2076 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2077 | "AssocEQID[%02d]: " | |
2078 | "CQ STAT[max:x%x relw:x%x " | |
2079 | "xabt:x%x wq:x%llx]\n", | |
2080 | qp->assoc_qid, | |
2081 | qp->q_cnt_1, qp->q_cnt_2, | |
2082 | qp->q_cnt_3, qp->q_cnt_4); | |
2083 | len += snprintf(pbuffer+len, | |
2084 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2085 | "\tCQID[%02d], " | |
2086 | "QE-CNT[%04d], QE-SIZE[%04d], " | |
2087 | "HOST-IDX[%04d], PORT-IDX[%04d]", | |
2088 | qp->queue_id, qp->entry_count, | |
2089 | qp->entry_size, qp->host_index, | |
2090 | qp->hba_index); | |
2091 | ||
2092 | ||
2093 | /* Reset max counter */ | |
2094 | qp->CQ_max_cqe = 0; | |
2095 | ||
2096 | len += snprintf(pbuffer+len, | |
2097 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2098 | if (len >= max_cnt) | |
2099 | goto too_big; | |
2100 | ||
2101 | /* Fast-path FCP WQ */ | |
2102 | qp = phba->sli4_hba.fcp_wq[x]; | |
2103 | ||
2104 | len += snprintf(pbuffer+len, | |
2105 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2106 | "\t\tFCP WQ info: "); | |
2107 | len += snprintf(pbuffer+len, | |
2108 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2109 | "AssocCQID[%02d]: " | |
2110 | "WQ-STAT[oflow:x%x posted:x%llx]\n", | |
2111 | qp->assoc_qid, | |
2112 | qp->q_cnt_1, qp->q_cnt_4); | |
2113 | len += snprintf(pbuffer+len, | |
2114 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2115 | "\t\tWQID[%02d], " | |
2116 | "QE-CNT[%04d], QE-SIZE[%04d], " | |
2117 | "HOST-IDX[%04d], PORT-IDX[%04d]", | |
2118 | qp->queue_id, | |
2119 | qp->entry_count, | |
2120 | qp->entry_size, | |
2121 | qp->host_index, | |
2122 | qp->hba_index); | |
2123 | ||
2124 | len += snprintf(pbuffer+len, | |
2125 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2126 | if (len >= max_cnt) | |
2127 | goto too_big; | |
2128 | ||
2129 | if (x) | |
2130 | continue; | |
2131 | ||
2132 | /* Only EQ 0 has slow path CQs configured */ | |
2133 | ||
2134 | /* Slow-path mailbox CQ */ | |
2135 | qp = phba->sli4_hba.mbx_cq; | |
2136 | if (qp) { | |
2137 | len += snprintf(pbuffer+len, | |
2138 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2139 | "\tMBX CQ info: "); | |
2e90f4b5 JS |
2140 | len += snprintf(pbuffer+len, |
2141 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
c85a65ac JS |
2142 | "AssocEQID[%02d]: " |
2143 | "CQ-STAT[mbox:x%x relw:x%x " | |
2144 | "xabt:x%x wq:x%llx]\n", | |
2145 | qp->assoc_qid, | |
2146 | qp->q_cnt_1, qp->q_cnt_2, | |
2147 | qp->q_cnt_3, qp->q_cnt_4); | |
2148 | len += snprintf(pbuffer+len, | |
2149 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2150 | "\tCQID[%02d], " | |
2151 | "QE-CNT[%04d], QE-SIZE[%04d], " | |
2152 | "HOST-IDX[%04d], PORT-IDX[%04d]", | |
2153 | qp->queue_id, qp->entry_count, | |
2154 | qp->entry_size, qp->host_index, | |
2155 | qp->hba_index); | |
2156 | ||
2157 | len += snprintf(pbuffer+len, | |
2158 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2159 | if (len >= max_cnt) | |
2160 | goto too_big; | |
2e90f4b5 | 2161 | } |
2a622bfb | 2162 | |
c85a65ac JS |
2163 | /* Slow-path MBOX MQ */ |
2164 | qp = phba->sli4_hba.mbx_wq; | |
2165 | if (qp) { | |
2166 | len += snprintf(pbuffer+len, | |
2167 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2168 | "\t\tMBX MQ info: "); | |
2169 | len += snprintf(pbuffer+len, | |
2170 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2171 | "AssocCQID[%02d]:\n", | |
2172 | phba->sli4_hba.mbx_wq->assoc_qid); | |
2173 | len += snprintf(pbuffer+len, | |
2174 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2175 | "\t\tWQID[%02d], " | |
2176 | "QE-CNT[%04d], QE-SIZE[%04d], " | |
2177 | "HOST-IDX[%04d], PORT-IDX[%04d]", | |
2178 | qp->queue_id, qp->entry_count, | |
2179 | qp->entry_size, qp->host_index, | |
2180 | qp->hba_index); | |
2181 | ||
2182 | len += snprintf(pbuffer+len, | |
2183 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2184 | if (len >= max_cnt) | |
2185 | goto too_big; | |
2186 | } | |
2a622bfb | 2187 | |
c85a65ac JS |
2188 | /* Slow-path ELS response CQ */ |
2189 | qp = phba->sli4_hba.els_cq; | |
2190 | if (qp) { | |
2e90f4b5 JS |
2191 | len += snprintf(pbuffer+len, |
2192 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
c85a65ac | 2193 | "\tELS CQ info: "); |
2e90f4b5 JS |
2194 | len += snprintf(pbuffer+len, |
2195 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
c85a65ac JS |
2196 | "AssocEQID[%02d]: " |
2197 | "CQ-STAT[max:x%x relw:x%x " | |
2198 | "xabt:x%x wq:x%llx]\n", | |
2199 | qp->assoc_qid, | |
2200 | qp->q_cnt_1, qp->q_cnt_2, | |
2201 | qp->q_cnt_3, qp->q_cnt_4); | |
2202 | len += snprintf(pbuffer+len, | |
2203 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2204 | "\tCQID [%02d], " | |
2205 | "QE-CNT[%04d], QE-SIZE[%04d], " | |
2206 | "HOST-IDX[%04d], PORT-IDX[%04d]", | |
2207 | qp->queue_id, qp->entry_count, | |
2208 | qp->entry_size, qp->host_index, | |
2209 | qp->hba_index); | |
2210 | ||
2211 | /* Reset max counter */ | |
2212 | qp->CQ_max_cqe = 0; | |
2213 | ||
2214 | len += snprintf(pbuffer+len, | |
2215 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2216 | if (len >= max_cnt) | |
2217 | goto too_big; | |
2e90f4b5 | 2218 | } |
2a622bfb | 2219 | |
c85a65ac JS |
2220 | /* Slow-path ELS WQ */ |
2221 | qp = phba->sli4_hba.els_wq; | |
2222 | if (qp) { | |
2223 | len += snprintf(pbuffer+len, | |
2224 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2225 | "\t\tELS WQ info: "); | |
2226 | len += snprintf(pbuffer+len, | |
2227 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2228 | "AssocCQID[%02d]: " | |
2229 | " WQ-STAT[oflow:x%x " | |
2230 | "posted:x%llx]\n", | |
2231 | qp->assoc_qid, | |
2232 | qp->q_cnt_1, qp->q_cnt_4); | |
2233 | len += snprintf(pbuffer+len, | |
2234 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2235 | "\t\tWQID[%02d], " | |
2236 | "QE-CNT[%04d], QE-SIZE[%04d], " | |
2237 | "HOST-IDX[%04d], PORT-IDX[%04d]", | |
2238 | qp->queue_id, qp->entry_count, | |
2239 | qp->entry_size, qp->host_index, | |
2240 | qp->hba_index); | |
2241 | ||
2242 | len += snprintf(pbuffer+len, | |
2243 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2244 | if (len >= max_cnt) | |
2245 | goto too_big; | |
2246 | } | |
2a622bfb | 2247 | |
c85a65ac JS |
2248 | if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) { |
2249 | /* Slow-path RQ header */ | |
2250 | qp = phba->sli4_hba.hdr_rq; | |
2a622bfb | 2251 | |
c85a65ac JS |
2252 | len += snprintf(pbuffer+len, |
2253 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2254 | "\t\tRQ info: "); | |
2255 | len += snprintf(pbuffer+len, | |
2e90f4b5 | 2256 | LPFC_QUE_INFO_GET_BUF_SIZE-len, |
c85a65ac JS |
2257 | "AssocCQID[%02d]: " |
2258 | "RQ-STAT[nopost:x%x nobuf:x%x " | |
2259 | "trunc:x%x rcv:x%llx]\n", | |
2260 | qp->assoc_qid, | |
2261 | qp->q_cnt_1, qp->q_cnt_2, | |
2262 | qp->q_cnt_3, qp->q_cnt_4); | |
2263 | len += snprintf(pbuffer+len, | |
2e90f4b5 | 2264 | LPFC_QUE_INFO_GET_BUF_SIZE-len, |
c85a65ac JS |
2265 | "\t\tHQID[%02d], " |
2266 | "QE-CNT[%04d], QE-SIZE[%04d], " | |
2267 | "HOST-IDX[%04d], PORT-IDX[%04d]\n", | |
2268 | qp->queue_id, | |
2269 | qp->entry_count, | |
2270 | qp->entry_size, | |
2271 | qp->host_index, | |
2272 | qp->hba_index); | |
2273 | ||
2274 | /* Slow-path RQ data */ | |
2275 | qp = phba->sli4_hba.dat_rq; | |
2276 | len += snprintf(pbuffer+len, | |
2277 | LPFC_QUE_INFO_GET_BUF_SIZE-len, | |
2278 | "\t\tDQID[%02d], " | |
2279 | "QE-CNT[%04d], QE-SIZE[%04d], " | |
2280 | "HOST-IDX[%04d], PORT-IDX[%04d]\n", | |
2281 | qp->queue_id, | |
2282 | qp->entry_count, | |
2283 | qp->entry_size, | |
2284 | qp->host_index, | |
2285 | qp->hba_index); | |
2286 | ||
2287 | len += snprintf(pbuffer+len, | |
2288 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n"); | |
2289 | } | |
2e90f4b5 | 2290 | } |
2a622bfb | 2291 | } |
2a622bfb | 2292 | |
c85a65ac JS |
2293 | spin_unlock_irq(&phba->hbalock); |
2294 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2295 | ||
2296 | too_big: | |
2297 | len += snprintf(pbuffer+len, | |
2298 | LPFC_QUE_INFO_GET_BUF_SIZE-len, "Truncated ...\n"); | |
2299 | spin_unlock_irq(&phba->hbalock); | |
2a622bfb JS |
2300 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); |
2301 | } | |
2302 | ||
86a80846 JS |
2303 | /** |
2304 | * lpfc_idiag_que_param_check - queue access command parameter sanity check | |
2305 | * @q: The pointer to queue structure. | |
2306 | * @index: The index into a queue entry. | |
2307 | * @count: The number of queue entries to access. | |
2308 | * | |
2309 | * Description: | |
2310 | * The routine performs sanity check on device queue access method commands. | |
2311 | * | |
2312 | * Returns: | |
2313 | * This function returns -EINVAL when fails the sanity check, otherwise, it | |
2314 | * returns 0. | |
2315 | **/ | |
2316 | static int | |
2317 | lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count) | |
2318 | { | |
2319 | /* Only support single entry read or browsing */ | |
2320 | if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE)) | |
2321 | return -EINVAL; | |
2322 | if (index > q->entry_count - 1) | |
2323 | return -EINVAL; | |
2324 | return 0; | |
2325 | } | |
2326 | ||
2327 | /** | |
2328 | * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index | |
2329 | * @pbuffer: The pointer to buffer to copy the read data into. | |
2330 | * @pque: The pointer to the queue to be read. | |
2331 | * @index: The index into the queue entry. | |
2332 | * | |
2333 | * Description: | |
2334 | * This routine reads out a single entry from the given queue's index location | |
2335 | * and copies it into the buffer provided. | |
2336 | * | |
2337 | * Returns: | |
2338 | * This function returns 0 when it fails, otherwise, it returns the length of | |
2339 | * the data read into the buffer provided. | |
2340 | **/ | |
2341 | static int | |
2342 | lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque, | |
2343 | uint32_t index) | |
2344 | { | |
2345 | int offset, esize; | |
2346 | uint32_t *pentry; | |
2347 | ||
2348 | if (!pbuffer || !pque) | |
2349 | return 0; | |
2350 | ||
2351 | esize = pque->entry_size; | |
2352 | len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, | |
2353 | "QE-INDEX[%04d]:\n", index); | |
2354 | ||
2355 | offset = 0; | |
2356 | pentry = pque->qe[index].address; | |
2357 | while (esize > 0) { | |
2358 | len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, | |
2359 | "%08x ", *pentry); | |
2360 | pentry++; | |
2361 | offset += sizeof(uint32_t); | |
2362 | esize -= sizeof(uint32_t); | |
2363 | if (esize > 0 && !(offset % (4 * sizeof(uint32_t)))) | |
2364 | len += snprintf(pbuffer+len, | |
2365 | LPFC_QUE_ACC_BUF_SIZE-len, "\n"); | |
2366 | } | |
2367 | len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n"); | |
2368 | ||
2369 | return len; | |
2370 | } | |
2371 | ||
2372 | /** | |
2373 | * lpfc_idiag_queacc_read - idiag debugfs read port queue | |
2374 | * @file: The file pointer to read from. | |
2375 | * @buf: The buffer to copy the data to. | |
2376 | * @nbytes: The number of bytes to read. | |
2377 | * @ppos: The position in the file to start reading from. | |
2378 | * | |
2379 | * Description: | |
2380 | * This routine reads data from the @phba device queue memory according to the | |
2381 | * idiag command, and copies to user @buf. Depending on the queue dump read | |
2382 | * command setup, it does either a single queue entry read or browing through | |
2383 | * all entries of the queue. | |
2384 | * | |
2385 | * Returns: | |
2386 | * This function returns the amount of data that was read (this could be less | |
2387 | * than @nbytes if the end of the file was reached) or a negative error value. | |
2388 | **/ | |
2389 | static ssize_t | |
2390 | lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes, | |
2391 | loff_t *ppos) | |
2392 | { | |
2393 | struct lpfc_debug *debug = file->private_data; | |
2394 | uint32_t last_index, index, count; | |
2395 | struct lpfc_queue *pque = NULL; | |
2396 | char *pbuffer; | |
2397 | int len = 0; | |
2398 | ||
2399 | /* This is a user read operation */ | |
2400 | debug->op = LPFC_IDIAG_OP_RD; | |
2401 | ||
2402 | if (!debug->buffer) | |
2403 | debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL); | |
2404 | if (!debug->buffer) | |
2405 | return 0; | |
2406 | pbuffer = debug->buffer; | |
2407 | ||
2408 | if (*ppos) | |
2409 | return 0; | |
2410 | ||
2411 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { | |
b76f2dc9 JS |
2412 | index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; |
2413 | count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; | |
86a80846 JS |
2414 | pque = (struct lpfc_queue *)idiag.ptr_private; |
2415 | } else | |
2416 | return 0; | |
2417 | ||
2418 | /* Browse the queue starting from index */ | |
2419 | if (count == LPFC_QUE_ACC_BROWSE) | |
2420 | goto que_browse; | |
2421 | ||
2422 | /* Read a single entry from the queue */ | |
2423 | len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); | |
2424 | ||
2425 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2426 | ||
2427 | que_browse: | |
2428 | ||
2429 | /* Browse all entries from the queue */ | |
2430 | last_index = idiag.offset.last_rd; | |
2431 | index = last_index; | |
2432 | ||
2433 | while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) { | |
2434 | len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index); | |
2435 | index++; | |
2436 | if (index > pque->entry_count - 1) | |
2437 | break; | |
2438 | } | |
2439 | ||
2440 | /* Set up the offset for next portion of pci cfg read */ | |
2441 | if (index > pque->entry_count - 1) | |
2442 | index = 0; | |
2443 | idiag.offset.last_rd = index; | |
2444 | ||
2445 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2446 | } | |
2447 | ||
2448 | /** | |
2449 | * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands | |
2450 | * @file: The file pointer to read from. | |
2451 | * @buf: The buffer to copy the user data from. | |
2452 | * @nbytes: The number of bytes to get. | |
2453 | * @ppos: The position in the file to start reading from. | |
2454 | * | |
2455 | * This routine get the debugfs idiag command struct from user space and then | |
2456 | * perform the syntax check for port queue read (dump) or write (set) command | |
2457 | * accordingly. In the case of port queue read command, it sets up the command | |
2458 | * in the idiag command struct for the following debugfs read operation. In | |
2459 | * the case of port queue write operation, it executes the write operation | |
2460 | * into the port queue entry accordingly. | |
2461 | * | |
2462 | * It returns the @nbytges passing in from debugfs user space when successful. | |
2463 | * In case of error conditions, it returns proper error code back to the user | |
2464 | * space. | |
2465 | **/ | |
2466 | static ssize_t | |
2467 | lpfc_idiag_queacc_write(struct file *file, const char __user *buf, | |
2468 | size_t nbytes, loff_t *ppos) | |
2469 | { | |
2470 | struct lpfc_debug *debug = file->private_data; | |
2471 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2472 | uint32_t qidx, quetp, queid, index, count, offset, value; | |
2473 | uint32_t *pentry; | |
2474 | struct lpfc_queue *pque; | |
2475 | int rc; | |
2476 | ||
2477 | /* This is a user write operation */ | |
2478 | debug->op = LPFC_IDIAG_OP_WR; | |
2479 | ||
2480 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
2481 | if (rc < 0) | |
2482 | return rc; | |
2483 | ||
2484 | /* Get and sanity check on command feilds */ | |
b76f2dc9 JS |
2485 | quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX]; |
2486 | queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX]; | |
2487 | index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX]; | |
2488 | count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX]; | |
2489 | offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX]; | |
2490 | value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX]; | |
86a80846 JS |
2491 | |
2492 | /* Sanity check on command line arguments */ | |
2493 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || | |
2494 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || | |
2495 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { | |
2496 | if (rc != LPFC_QUE_ACC_WR_CMD_ARG) | |
2497 | goto error_out; | |
2498 | if (count != 1) | |
2499 | goto error_out; | |
2500 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { | |
2501 | if (rc != LPFC_QUE_ACC_RD_CMD_ARG) | |
2502 | goto error_out; | |
2503 | } else | |
2504 | goto error_out; | |
2505 | ||
2506 | switch (quetp) { | |
2507 | case LPFC_IDIAG_EQ: | |
67d12733 JS |
2508 | /* HBA event queue */ |
2509 | if (phba->sli4_hba.hba_eq) { | |
2510 | for (qidx = 0; qidx < phba->cfg_fcp_io_channel; | |
2511 | qidx++) { | |
2512 | if (phba->sli4_hba.hba_eq[qidx] && | |
2513 | phba->sli4_hba.hba_eq[qidx]->queue_id == | |
2e90f4b5 JS |
2514 | queid) { |
2515 | /* Sanity check */ | |
2516 | rc = lpfc_idiag_que_param_check( | |
67d12733 | 2517 | phba->sli4_hba.hba_eq[qidx], |
86a80846 | 2518 | index, count); |
2e90f4b5 JS |
2519 | if (rc) |
2520 | goto error_out; | |
2521 | idiag.ptr_private = | |
67d12733 | 2522 | phba->sli4_hba.hba_eq[qidx]; |
2e90f4b5 JS |
2523 | goto pass_check; |
2524 | } | |
86a80846 JS |
2525 | } |
2526 | } | |
2527 | goto error_out; | |
2528 | break; | |
2529 | case LPFC_IDIAG_CQ: | |
2530 | /* MBX complete queue */ | |
2e90f4b5 JS |
2531 | if (phba->sli4_hba.mbx_cq && |
2532 | phba->sli4_hba.mbx_cq->queue_id == queid) { | |
86a80846 JS |
2533 | /* Sanity check */ |
2534 | rc = lpfc_idiag_que_param_check( | |
2535 | phba->sli4_hba.mbx_cq, index, count); | |
2536 | if (rc) | |
2537 | goto error_out; | |
2538 | idiag.ptr_private = phba->sli4_hba.mbx_cq; | |
2539 | goto pass_check; | |
2540 | } | |
2541 | /* ELS complete queue */ | |
2e90f4b5 JS |
2542 | if (phba->sli4_hba.els_cq && |
2543 | phba->sli4_hba.els_cq->queue_id == queid) { | |
86a80846 JS |
2544 | /* Sanity check */ |
2545 | rc = lpfc_idiag_que_param_check( | |
2546 | phba->sli4_hba.els_cq, index, count); | |
2547 | if (rc) | |
2548 | goto error_out; | |
2549 | idiag.ptr_private = phba->sli4_hba.els_cq; | |
2550 | goto pass_check; | |
2551 | } | |
2552 | /* FCP complete queue */ | |
2e90f4b5 JS |
2553 | if (phba->sli4_hba.fcp_cq) { |
2554 | qidx = 0; | |
2555 | do { | |
2556 | if (phba->sli4_hba.fcp_cq[qidx] && | |
2557 | phba->sli4_hba.fcp_cq[qidx]->queue_id == | |
2558 | queid) { | |
2559 | /* Sanity check */ | |
2560 | rc = lpfc_idiag_que_param_check( | |
86a80846 JS |
2561 | phba->sli4_hba.fcp_cq[qidx], |
2562 | index, count); | |
2e90f4b5 JS |
2563 | if (rc) |
2564 | goto error_out; | |
2565 | idiag.ptr_private = | |
86a80846 | 2566 | phba->sli4_hba.fcp_cq[qidx]; |
2e90f4b5 JS |
2567 | goto pass_check; |
2568 | } | |
67d12733 | 2569 | } while (++qidx < phba->cfg_fcp_io_channel); |
2e90f4b5 | 2570 | } |
86a80846 JS |
2571 | goto error_out; |
2572 | break; | |
2573 | case LPFC_IDIAG_MQ: | |
2574 | /* MBX work queue */ | |
2e90f4b5 JS |
2575 | if (phba->sli4_hba.mbx_wq && |
2576 | phba->sli4_hba.mbx_wq->queue_id == queid) { | |
86a80846 JS |
2577 | /* Sanity check */ |
2578 | rc = lpfc_idiag_que_param_check( | |
2579 | phba->sli4_hba.mbx_wq, index, count); | |
2580 | if (rc) | |
2581 | goto error_out; | |
2582 | idiag.ptr_private = phba->sli4_hba.mbx_wq; | |
2583 | goto pass_check; | |
2584 | } | |
2e90f4b5 | 2585 | goto error_out; |
86a80846 JS |
2586 | break; |
2587 | case LPFC_IDIAG_WQ: | |
2588 | /* ELS work queue */ | |
2e90f4b5 JS |
2589 | if (phba->sli4_hba.els_wq && |
2590 | phba->sli4_hba.els_wq->queue_id == queid) { | |
86a80846 JS |
2591 | /* Sanity check */ |
2592 | rc = lpfc_idiag_que_param_check( | |
2593 | phba->sli4_hba.els_wq, index, count); | |
2594 | if (rc) | |
2595 | goto error_out; | |
2596 | idiag.ptr_private = phba->sli4_hba.els_wq; | |
2597 | goto pass_check; | |
2598 | } | |
2599 | /* FCP work queue */ | |
2e90f4b5 | 2600 | if (phba->sli4_hba.fcp_wq) { |
67d12733 JS |
2601 | for (qidx = 0; qidx < phba->cfg_fcp_io_channel; |
2602 | qidx++) { | |
2e90f4b5 JS |
2603 | if (!phba->sli4_hba.fcp_wq[qidx]) |
2604 | continue; | |
2605 | if (phba->sli4_hba.fcp_wq[qidx]->queue_id == | |
2606 | queid) { | |
2607 | /* Sanity check */ | |
2608 | rc = lpfc_idiag_que_param_check( | |
86a80846 JS |
2609 | phba->sli4_hba.fcp_wq[qidx], |
2610 | index, count); | |
2e90f4b5 JS |
2611 | if (rc) |
2612 | goto error_out; | |
2613 | idiag.ptr_private = | |
2614 | phba->sli4_hba.fcp_wq[qidx]; | |
2615 | goto pass_check; | |
2616 | } | |
86a80846 JS |
2617 | } |
2618 | } | |
2619 | goto error_out; | |
2620 | break; | |
2621 | case LPFC_IDIAG_RQ: | |
2622 | /* HDR queue */ | |
2e90f4b5 JS |
2623 | if (phba->sli4_hba.hdr_rq && |
2624 | phba->sli4_hba.hdr_rq->queue_id == queid) { | |
86a80846 JS |
2625 | /* Sanity check */ |
2626 | rc = lpfc_idiag_que_param_check( | |
2627 | phba->sli4_hba.hdr_rq, index, count); | |
2628 | if (rc) | |
2629 | goto error_out; | |
2630 | idiag.ptr_private = phba->sli4_hba.hdr_rq; | |
2631 | goto pass_check; | |
2632 | } | |
2633 | /* DAT queue */ | |
2e90f4b5 JS |
2634 | if (phba->sli4_hba.dat_rq && |
2635 | phba->sli4_hba.dat_rq->queue_id == queid) { | |
86a80846 JS |
2636 | /* Sanity check */ |
2637 | rc = lpfc_idiag_que_param_check( | |
2638 | phba->sli4_hba.dat_rq, index, count); | |
2639 | if (rc) | |
2640 | goto error_out; | |
2641 | idiag.ptr_private = phba->sli4_hba.dat_rq; | |
2642 | goto pass_check; | |
2643 | } | |
2644 | goto error_out; | |
2645 | break; | |
2646 | default: | |
2647 | goto error_out; | |
2648 | break; | |
2649 | } | |
2650 | ||
2651 | pass_check: | |
2652 | ||
2653 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) { | |
2654 | if (count == LPFC_QUE_ACC_BROWSE) | |
2655 | idiag.offset.last_rd = index; | |
2656 | } | |
2657 | ||
2658 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR || | |
2659 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST || | |
2660 | idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) { | |
2661 | /* Additional sanity checks on write operation */ | |
2662 | pque = (struct lpfc_queue *)idiag.ptr_private; | |
2663 | if (offset > pque->entry_size/sizeof(uint32_t) - 1) | |
2664 | goto error_out; | |
2665 | pentry = pque->qe[index].address; | |
2666 | pentry += offset; | |
2667 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR) | |
2668 | *pentry = value; | |
2669 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST) | |
2670 | *pentry |= value; | |
2671 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) | |
2672 | *pentry &= ~value; | |
2673 | } | |
2674 | return nbytes; | |
2675 | ||
2676 | error_out: | |
2677 | /* Clean out command structure on command error out */ | |
2678 | memset(&idiag, 0, sizeof(idiag)); | |
2679 | return -EINVAL; | |
2680 | } | |
2681 | ||
2682 | /** | |
2683 | * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register | |
2684 | * @phba: The pointer to hba structure. | |
2685 | * @pbuffer: The pointer to the buffer to copy the data to. | |
2686 | * @len: The lenght of bytes to copied. | |
2687 | * @drbregid: The id to doorbell registers. | |
2688 | * | |
2689 | * Description: | |
2690 | * This routine reads a doorbell register and copies its content to the | |
2691 | * user buffer pointed to by @pbuffer. | |
2692 | * | |
2693 | * Returns: | |
2694 | * This function returns the amount of data that was copied into @pbuffer. | |
2695 | **/ | |
2696 | static int | |
2697 | lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer, | |
2698 | int len, uint32_t drbregid) | |
2699 | { | |
2700 | ||
2701 | if (!pbuffer) | |
2702 | return 0; | |
2703 | ||
2704 | switch (drbregid) { | |
2705 | case LPFC_DRB_EQCQ: | |
2706 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
2707 | "EQCQ-DRB-REG: 0x%08x\n", | |
2708 | readl(phba->sli4_hba.EQCQDBregaddr)); | |
2709 | break; | |
2710 | case LPFC_DRB_MQ: | |
2711 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
2712 | "MQ-DRB-REG: 0x%08x\n", | |
2713 | readl(phba->sli4_hba.MQDBregaddr)); | |
2714 | break; | |
2715 | case LPFC_DRB_WQ: | |
2716 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
2717 | "WQ-DRB-REG: 0x%08x\n", | |
2718 | readl(phba->sli4_hba.WQDBregaddr)); | |
2719 | break; | |
2720 | case LPFC_DRB_RQ: | |
2721 | len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len, | |
2722 | "RQ-DRB-REG: 0x%08x\n", | |
2723 | readl(phba->sli4_hba.RQDBregaddr)); | |
2724 | break; | |
2725 | default: | |
2726 | break; | |
2727 | } | |
2728 | ||
2729 | return len; | |
2730 | } | |
2731 | ||
2732 | /** | |
2733 | * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell | |
2734 | * @file: The file pointer to read from. | |
2735 | * @buf: The buffer to copy the data to. | |
2736 | * @nbytes: The number of bytes to read. | |
2737 | * @ppos: The position in the file to start reading from. | |
2738 | * | |
2739 | * Description: | |
2740 | * This routine reads data from the @phba device doorbell register according | |
2741 | * to the idiag command, and copies to user @buf. Depending on the doorbell | |
2742 | * register read command setup, it does either a single doorbell register | |
2743 | * read or dump all doorbell registers. | |
2744 | * | |
2745 | * Returns: | |
2746 | * This function returns the amount of data that was read (this could be less | |
2747 | * than @nbytes if the end of the file was reached) or a negative error value. | |
2748 | **/ | |
2749 | static ssize_t | |
2750 | lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes, | |
2751 | loff_t *ppos) | |
2752 | { | |
2753 | struct lpfc_debug *debug = file->private_data; | |
2754 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2755 | uint32_t drb_reg_id, i; | |
2756 | char *pbuffer; | |
2757 | int len = 0; | |
2758 | ||
2759 | /* This is a user read operation */ | |
2760 | debug->op = LPFC_IDIAG_OP_RD; | |
2761 | ||
2762 | if (!debug->buffer) | |
2763 | debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL); | |
2764 | if (!debug->buffer) | |
2765 | return 0; | |
2766 | pbuffer = debug->buffer; | |
2767 | ||
2768 | if (*ppos) | |
2769 | return 0; | |
2770 | ||
2771 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) | |
b76f2dc9 | 2772 | drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; |
86a80846 JS |
2773 | else |
2774 | return 0; | |
2775 | ||
2776 | if (drb_reg_id == LPFC_DRB_ACC_ALL) | |
2777 | for (i = 1; i <= LPFC_DRB_MAX; i++) | |
2778 | len = lpfc_idiag_drbacc_read_reg(phba, | |
2779 | pbuffer, len, i); | |
2780 | else | |
2781 | len = lpfc_idiag_drbacc_read_reg(phba, | |
2782 | pbuffer, len, drb_reg_id); | |
2783 | ||
2784 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
2785 | } | |
2786 | ||
2787 | /** | |
2788 | * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands | |
2789 | * @file: The file pointer to read from. | |
2790 | * @buf: The buffer to copy the user data from. | |
2791 | * @nbytes: The number of bytes to get. | |
2792 | * @ppos: The position in the file to start reading from. | |
2793 | * | |
2794 | * This routine get the debugfs idiag command struct from user space and then | |
2795 | * perform the syntax check for port doorbell register read (dump) or write | |
2796 | * (set) command accordingly. In the case of port queue read command, it sets | |
2797 | * up the command in the idiag command struct for the following debugfs read | |
2798 | * operation. In the case of port doorbell register write operation, it | |
2799 | * executes the write operation into the port doorbell register accordingly. | |
2800 | * | |
2801 | * It returns the @nbytges passing in from debugfs user space when successful. | |
2802 | * In case of error conditions, it returns proper error code back to the user | |
2803 | * space. | |
2804 | **/ | |
2805 | static ssize_t | |
2806 | lpfc_idiag_drbacc_write(struct file *file, const char __user *buf, | |
2807 | size_t nbytes, loff_t *ppos) | |
2808 | { | |
2809 | struct lpfc_debug *debug = file->private_data; | |
2810 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
b76f2dc9 | 2811 | uint32_t drb_reg_id, value, reg_val = 0; |
86a80846 JS |
2812 | void __iomem *drb_reg; |
2813 | int rc; | |
2814 | ||
2815 | /* This is a user write operation */ | |
2816 | debug->op = LPFC_IDIAG_OP_WR; | |
2817 | ||
2818 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
2819 | if (rc < 0) | |
2820 | return rc; | |
2821 | ||
2822 | /* Sanity check on command line arguments */ | |
b76f2dc9 JS |
2823 | drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX]; |
2824 | value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX]; | |
86a80846 JS |
2825 | |
2826 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || | |
2827 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || | |
2828 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { | |
2829 | if (rc != LPFC_DRB_ACC_WR_CMD_ARG) | |
2830 | goto error_out; | |
2831 | if (drb_reg_id > LPFC_DRB_MAX) | |
2832 | goto error_out; | |
2833 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) { | |
2834 | if (rc != LPFC_DRB_ACC_RD_CMD_ARG) | |
2835 | goto error_out; | |
2836 | if ((drb_reg_id > LPFC_DRB_MAX) && | |
2837 | (drb_reg_id != LPFC_DRB_ACC_ALL)) | |
2838 | goto error_out; | |
2839 | } else | |
2840 | goto error_out; | |
2841 | ||
2842 | /* Perform the write access operation */ | |
2843 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR || | |
2844 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST || | |
2845 | idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { | |
2846 | switch (drb_reg_id) { | |
2847 | case LPFC_DRB_EQCQ: | |
2848 | drb_reg = phba->sli4_hba.EQCQDBregaddr; | |
2849 | break; | |
2850 | case LPFC_DRB_MQ: | |
2851 | drb_reg = phba->sli4_hba.MQDBregaddr; | |
2852 | break; | |
2853 | case LPFC_DRB_WQ: | |
2854 | drb_reg = phba->sli4_hba.WQDBregaddr; | |
2855 | break; | |
2856 | case LPFC_DRB_RQ: | |
2857 | drb_reg = phba->sli4_hba.RQDBregaddr; | |
2858 | break; | |
2859 | default: | |
2860 | goto error_out; | |
2861 | } | |
2862 | ||
2863 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR) | |
2864 | reg_val = value; | |
2865 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) { | |
2866 | reg_val = readl(drb_reg); | |
2867 | reg_val |= value; | |
2868 | } | |
2869 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) { | |
2870 | reg_val = readl(drb_reg); | |
2871 | reg_val &= ~value; | |
2872 | } | |
2873 | writel(reg_val, drb_reg); | |
2874 | readl(drb_reg); /* flush */ | |
2875 | } | |
2876 | return nbytes; | |
2877 | ||
2878 | error_out: | |
2879 | /* Clean out command structure on command error out */ | |
2880 | memset(&idiag, 0, sizeof(idiag)); | |
2881 | return -EINVAL; | |
2882 | } | |
2883 | ||
b76f2dc9 JS |
2884 | /** |
2885 | * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers | |
2886 | * @phba: The pointer to hba structure. | |
2887 | * @pbuffer: The pointer to the buffer to copy the data to. | |
2888 | * @len: The lenght of bytes to copied. | |
2889 | * @drbregid: The id to doorbell registers. | |
2890 | * | |
2891 | * Description: | |
2892 | * This routine reads a control register and copies its content to the | |
2893 | * user buffer pointed to by @pbuffer. | |
2894 | * | |
2895 | * Returns: | |
2896 | * This function returns the amount of data that was copied into @pbuffer. | |
2897 | **/ | |
2898 | static int | |
2899 | lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer, | |
2900 | int len, uint32_t ctlregid) | |
2901 | { | |
858c9f6c | 2902 | |
b76f2dc9 JS |
2903 | if (!pbuffer) |
2904 | return 0; | |
858c9f6c | 2905 | |
b76f2dc9 JS |
2906 | switch (ctlregid) { |
2907 | case LPFC_CTL_PORT_SEM: | |
2908 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2909 | "Port SemReg: 0x%08x\n", | |
2910 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2911 | LPFC_CTL_PORT_SEM_OFFSET)); | |
2912 | break; | |
2913 | case LPFC_CTL_PORT_STA: | |
2914 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2915 | "Port StaReg: 0x%08x\n", | |
2916 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2917 | LPFC_CTL_PORT_STA_OFFSET)); | |
2918 | break; | |
2919 | case LPFC_CTL_PORT_CTL: | |
2920 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2921 | "Port CtlReg: 0x%08x\n", | |
2922 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2923 | LPFC_CTL_PORT_CTL_OFFSET)); | |
2924 | break; | |
2925 | case LPFC_CTL_PORT_ER1: | |
2926 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2927 | "Port Er1Reg: 0x%08x\n", | |
2928 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2929 | LPFC_CTL_PORT_ER1_OFFSET)); | |
2930 | break; | |
2931 | case LPFC_CTL_PORT_ER2: | |
2932 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2933 | "Port Er2Reg: 0x%08x\n", | |
2934 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2935 | LPFC_CTL_PORT_ER2_OFFSET)); | |
2936 | break; | |
2937 | case LPFC_CTL_PDEV_CTL: | |
2938 | len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len, | |
2939 | "PDev CtlReg: 0x%08x\n", | |
2940 | readl(phba->sli4_hba.conf_regs_memmap_p + | |
2941 | LPFC_CTL_PDEV_CTL_OFFSET)); | |
2942 | break; | |
2943 | default: | |
2944 | break; | |
2945 | } | |
2946 | return len; | |
2947 | } | |
78b2d852 | 2948 | |
b76f2dc9 JS |
2949 | /** |
2950 | * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register | |
2951 | * @file: The file pointer to read from. | |
2952 | * @buf: The buffer to copy the data to. | |
2953 | * @nbytes: The number of bytes to read. | |
2954 | * @ppos: The position in the file to start reading from. | |
2955 | * | |
2956 | * Description: | |
2957 | * This routine reads data from the @phba port and device registers according | |
2958 | * to the idiag command, and copies to user @buf. | |
2959 | * | |
2960 | * Returns: | |
2961 | * This function returns the amount of data that was read (this could be less | |
2962 | * than @nbytes if the end of the file was reached) or a negative error value. | |
2963 | **/ | |
2964 | static ssize_t | |
2965 | lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes, | |
2966 | loff_t *ppos) | |
2967 | { | |
2968 | struct lpfc_debug *debug = file->private_data; | |
2969 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
2970 | uint32_t ctl_reg_id, i; | |
2971 | char *pbuffer; | |
2972 | int len = 0; | |
c95d6c6c | 2973 | |
b76f2dc9 JS |
2974 | /* This is a user read operation */ |
2975 | debug->op = LPFC_IDIAG_OP_RD; | |
a58cbd52 | 2976 | |
b76f2dc9 JS |
2977 | if (!debug->buffer) |
2978 | debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL); | |
2979 | if (!debug->buffer) | |
2980 | return 0; | |
2981 | pbuffer = debug->buffer; | |
e2a0a9d6 | 2982 | |
b76f2dc9 JS |
2983 | if (*ppos) |
2984 | return 0; | |
2985 | ||
2986 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) | |
2987 | ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; | |
2988 | else | |
2989 | return 0; | |
2990 | ||
2991 | if (ctl_reg_id == LPFC_CTL_ACC_ALL) | |
2992 | for (i = 1; i <= LPFC_CTL_MAX; i++) | |
2993 | len = lpfc_idiag_ctlacc_read_reg(phba, | |
2994 | pbuffer, len, i); | |
2995 | else | |
2996 | len = lpfc_idiag_ctlacc_read_reg(phba, | |
2997 | pbuffer, len, ctl_reg_id); | |
2998 | ||
2999 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
3000 | } | |
3001 | ||
3002 | /** | |
3003 | * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands | |
3004 | * @file: The file pointer to read from. | |
3005 | * @buf: The buffer to copy the user data from. | |
3006 | * @nbytes: The number of bytes to get. | |
3007 | * @ppos: The position in the file to start reading from. | |
3008 | * | |
3009 | * This routine get the debugfs idiag command struct from user space and then | |
3010 | * perform the syntax check for port and device control register read (dump) | |
3011 | * or write (set) command accordingly. | |
3012 | * | |
3013 | * It returns the @nbytges passing in from debugfs user space when successful. | |
3014 | * In case of error conditions, it returns proper error code back to the user | |
3015 | * space. | |
3016 | **/ | |
3017 | static ssize_t | |
3018 | lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf, | |
3019 | size_t nbytes, loff_t *ppos) | |
3020 | { | |
3021 | struct lpfc_debug *debug = file->private_data; | |
3022 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
3023 | uint32_t ctl_reg_id, value, reg_val = 0; | |
3024 | void __iomem *ctl_reg; | |
3025 | int rc; | |
3026 | ||
3027 | /* This is a user write operation */ | |
3028 | debug->op = LPFC_IDIAG_OP_WR; | |
3029 | ||
3030 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
3031 | if (rc < 0) | |
3032 | return rc; | |
3033 | ||
3034 | /* Sanity check on command line arguments */ | |
3035 | ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX]; | |
3036 | value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX]; | |
3037 | ||
3038 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || | |
3039 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || | |
3040 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { | |
3041 | if (rc != LPFC_CTL_ACC_WR_CMD_ARG) | |
3042 | goto error_out; | |
3043 | if (ctl_reg_id > LPFC_CTL_MAX) | |
3044 | goto error_out; | |
3045 | } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) { | |
3046 | if (rc != LPFC_CTL_ACC_RD_CMD_ARG) | |
3047 | goto error_out; | |
3048 | if ((ctl_reg_id > LPFC_CTL_MAX) && | |
3049 | (ctl_reg_id != LPFC_CTL_ACC_ALL)) | |
3050 | goto error_out; | |
3051 | } else | |
3052 | goto error_out; | |
3053 | ||
3054 | /* Perform the write access operation */ | |
3055 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR || | |
3056 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST || | |
3057 | idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { | |
3058 | switch (ctl_reg_id) { | |
3059 | case LPFC_CTL_PORT_SEM: | |
3060 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3061 | LPFC_CTL_PORT_SEM_OFFSET; | |
3062 | break; | |
3063 | case LPFC_CTL_PORT_STA: | |
3064 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3065 | LPFC_CTL_PORT_STA_OFFSET; | |
3066 | break; | |
3067 | case LPFC_CTL_PORT_CTL: | |
3068 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3069 | LPFC_CTL_PORT_CTL_OFFSET; | |
3070 | break; | |
3071 | case LPFC_CTL_PORT_ER1: | |
3072 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3073 | LPFC_CTL_PORT_ER1_OFFSET; | |
3074 | break; | |
3075 | case LPFC_CTL_PORT_ER2: | |
3076 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3077 | LPFC_CTL_PORT_ER2_OFFSET; | |
3078 | break; | |
3079 | case LPFC_CTL_PDEV_CTL: | |
3080 | ctl_reg = phba->sli4_hba.conf_regs_memmap_p + | |
3081 | LPFC_CTL_PDEV_CTL_OFFSET; | |
3082 | break; | |
3083 | default: | |
3084 | goto error_out; | |
3085 | } | |
3086 | ||
3087 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR) | |
3088 | reg_val = value; | |
3089 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) { | |
3090 | reg_val = readl(ctl_reg); | |
3091 | reg_val |= value; | |
3092 | } | |
3093 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) { | |
3094 | reg_val = readl(ctl_reg); | |
3095 | reg_val &= ~value; | |
3096 | } | |
3097 | writel(reg_val, ctl_reg); | |
3098 | readl(ctl_reg); /* flush */ | |
3099 | } | |
3100 | return nbytes; | |
3101 | ||
3102 | error_out: | |
3103 | /* Clean out command structure on command error out */ | |
3104 | memset(&idiag, 0, sizeof(idiag)); | |
3105 | return -EINVAL; | |
3106 | } | |
3107 | ||
3108 | /** | |
3109 | * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup | |
3110 | * @phba: Pointer to HBA context object. | |
3111 | * @pbuffer: Pointer to data buffer. | |
3112 | * | |
3113 | * Description: | |
3114 | * This routine gets the driver mailbox access debugfs setup information. | |
3115 | * | |
3116 | * Returns: | |
3117 | * This function returns the amount of data that was read (this could be less | |
3118 | * than @nbytes if the end of the file was reached) or a negative error value. | |
3119 | **/ | |
3120 | static int | |
3121 | lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer) | |
3122 | { | |
3123 | uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; | |
3124 | int len = 0; | |
3125 | ||
3126 | mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
3127 | mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
3128 | mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
3129 | mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
3130 | ||
3131 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
3132 | "mbx_dump_map: 0x%08x\n", mbx_dump_map); | |
3133 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
3134 | "mbx_dump_cnt: %04d\n", mbx_dump_cnt); | |
3135 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
3136 | "mbx_word_cnt: %04d\n", mbx_word_cnt); | |
3137 | len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len, | |
3138 | "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd); | |
3139 | ||
3140 | return len; | |
3141 | } | |
3142 | ||
3143 | /** | |
3144 | * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access | |
3145 | * @file: The file pointer to read from. | |
3146 | * @buf: The buffer to copy the data to. | |
3147 | * @nbytes: The number of bytes to read. | |
3148 | * @ppos: The position in the file to start reading from. | |
3149 | * | |
3150 | * Description: | |
3151 | * This routine reads data from the @phba driver mailbox access debugfs setup | |
3152 | * information. | |
3153 | * | |
3154 | * Returns: | |
3155 | * This function returns the amount of data that was read (this could be less | |
3156 | * than @nbytes if the end of the file was reached) or a negative error value. | |
3157 | **/ | |
3158 | static ssize_t | |
3159 | lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes, | |
3160 | loff_t *ppos) | |
3161 | { | |
3162 | struct lpfc_debug *debug = file->private_data; | |
3163 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
3164 | char *pbuffer; | |
3165 | int len = 0; | |
3166 | ||
3167 | /* This is a user read operation */ | |
3168 | debug->op = LPFC_IDIAG_OP_RD; | |
3169 | ||
3170 | if (!debug->buffer) | |
3171 | debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL); | |
3172 | if (!debug->buffer) | |
3173 | return 0; | |
3174 | pbuffer = debug->buffer; | |
3175 | ||
3176 | if (*ppos) | |
3177 | return 0; | |
3178 | ||
3179 | if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) && | |
3180 | (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)) | |
3181 | return 0; | |
3182 | ||
3183 | len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer); | |
3184 | ||
3185 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
3186 | } | |
3187 | ||
3188 | /** | |
3189 | * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands | |
3190 | * @file: The file pointer to read from. | |
3191 | * @buf: The buffer to copy the user data from. | |
3192 | * @nbytes: The number of bytes to get. | |
3193 | * @ppos: The position in the file to start reading from. | |
3194 | * | |
3195 | * This routine get the debugfs idiag command struct from user space and then | |
3196 | * perform the syntax check for driver mailbox command (dump) and sets up the | |
3197 | * necessary states in the idiag command struct accordingly. | |
3198 | * | |
3199 | * It returns the @nbytges passing in from debugfs user space when successful. | |
3200 | * In case of error conditions, it returns proper error code back to the user | |
3201 | * space. | |
3202 | **/ | |
3203 | static ssize_t | |
3204 | lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf, | |
3205 | size_t nbytes, loff_t *ppos) | |
3206 | { | |
3207 | struct lpfc_debug *debug = file->private_data; | |
3208 | uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd; | |
3209 | int rc; | |
3210 | ||
3211 | /* This is a user write operation */ | |
3212 | debug->op = LPFC_IDIAG_OP_WR; | |
3213 | ||
3214 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
3215 | if (rc < 0) | |
3216 | return rc; | |
3217 | ||
3218 | /* Sanity check on command line arguments */ | |
3219 | mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
3220 | mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
3221 | mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
3222 | mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
3223 | ||
3224 | if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) { | |
3225 | if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL)) | |
3226 | goto error_out; | |
3227 | if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) && | |
3228 | (mbx_dump_map != LPFC_MBX_DMP_ALL)) | |
3229 | goto error_out; | |
3230 | if (mbx_word_cnt > sizeof(MAILBOX_t)) | |
3231 | goto error_out; | |
3232 | } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) { | |
3233 | if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL)) | |
3234 | goto error_out; | |
3235 | if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) && | |
3236 | (mbx_dump_map != LPFC_MBX_DMP_ALL)) | |
3237 | goto error_out; | |
3238 | if (mbx_word_cnt > (BSG_MBOX_SIZE)/4) | |
3239 | goto error_out; | |
3240 | if (mbx_mbox_cmd != 0x9b) | |
3241 | goto error_out; | |
3242 | } else | |
3243 | goto error_out; | |
3244 | ||
3245 | if (mbx_word_cnt == 0) | |
3246 | goto error_out; | |
3247 | if (rc != LPFC_MBX_DMP_ARG) | |
3248 | goto error_out; | |
3249 | if (mbx_mbox_cmd & ~0xff) | |
3250 | goto error_out; | |
3251 | ||
3252 | /* condition for stop mailbox dump */ | |
3253 | if (mbx_dump_cnt == 0) | |
3254 | goto reset_out; | |
3255 | ||
3256 | return nbytes; | |
3257 | ||
3258 | reset_out: | |
3259 | /* Clean out command structure on command error out */ | |
3260 | memset(&idiag, 0, sizeof(idiag)); | |
3261 | return nbytes; | |
3262 | ||
3263 | error_out: | |
3264 | /* Clean out command structure on command error out */ | |
3265 | memset(&idiag, 0, sizeof(idiag)); | |
3266 | return -EINVAL; | |
3267 | } | |
3268 | ||
3269 | /** | |
3270 | * lpfc_idiag_extacc_avail_get - get the available extents information | |
3271 | * @phba: pointer to lpfc hba data structure. | |
3272 | * @pbuffer: pointer to internal buffer. | |
3273 | * @len: length into the internal buffer data has been copied. | |
3274 | * | |
3275 | * Description: | |
3276 | * This routine is to get the available extent information. | |
3277 | * | |
3278 | * Returns: | |
3279 | * overall lenth of the data read into the internal buffer. | |
3280 | **/ | |
3281 | static int | |
3282 | lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len) | |
3283 | { | |
3284 | uint16_t ext_cnt, ext_size; | |
3285 | ||
3286 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3287 | "\nAvailable Extents Information:\n"); | |
3288 | ||
3289 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3290 | "\tPort Available VPI extents: "); | |
3291 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, | |
3292 | &ext_cnt, &ext_size); | |
3293 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3294 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
3295 | ||
3296 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3297 | "\tPort Available VFI extents: "); | |
3298 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI, | |
3299 | &ext_cnt, &ext_size); | |
3300 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3301 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
3302 | ||
3303 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3304 | "\tPort Available RPI extents: "); | |
3305 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, | |
3306 | &ext_cnt, &ext_size); | |
3307 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3308 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
3309 | ||
3310 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3311 | "\tPort Available XRI extents: "); | |
3312 | lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, | |
3313 | &ext_cnt, &ext_size); | |
3314 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3315 | "Count %3d, Size %3d\n", ext_cnt, ext_size); | |
3316 | ||
3317 | return len; | |
3318 | } | |
3319 | ||
3320 | /** | |
3321 | * lpfc_idiag_extacc_alloc_get - get the allocated extents information | |
3322 | * @phba: pointer to lpfc hba data structure. | |
3323 | * @pbuffer: pointer to internal buffer. | |
3324 | * @len: length into the internal buffer data has been copied. | |
3325 | * | |
3326 | * Description: | |
3327 | * This routine is to get the allocated extent information. | |
3328 | * | |
3329 | * Returns: | |
3330 | * overall lenth of the data read into the internal buffer. | |
3331 | **/ | |
3332 | static int | |
3333 | lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len) | |
3334 | { | |
3335 | uint16_t ext_cnt, ext_size; | |
3336 | int rc; | |
3337 | ||
3338 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3339 | "\nAllocated Extents Information:\n"); | |
3340 | ||
3341 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3342 | "\tHost Allocated VPI extents: "); | |
3343 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI, | |
3344 | &ext_cnt, &ext_size); | |
3345 | if (!rc) | |
3346 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3347 | "Port %d Extent %3d, Size %3d\n", | |
3348 | phba->brd_no, ext_cnt, ext_size); | |
3349 | else | |
3350 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3351 | "N/A\n"); | |
3352 | ||
3353 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3354 | "\tHost Allocated VFI extents: "); | |
3355 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI, | |
3356 | &ext_cnt, &ext_size); | |
3357 | if (!rc) | |
3358 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3359 | "Port %d Extent %3d, Size %3d\n", | |
3360 | phba->brd_no, ext_cnt, ext_size); | |
3361 | else | |
3362 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3363 | "N/A\n"); | |
3364 | ||
3365 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3366 | "\tHost Allocated RPI extents: "); | |
3367 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI, | |
3368 | &ext_cnt, &ext_size); | |
3369 | if (!rc) | |
3370 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3371 | "Port %d Extent %3d, Size %3d\n", | |
3372 | phba->brd_no, ext_cnt, ext_size); | |
3373 | else | |
3374 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3375 | "N/A\n"); | |
3376 | ||
3377 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3378 | "\tHost Allocated XRI extents: "); | |
3379 | rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI, | |
3380 | &ext_cnt, &ext_size); | |
3381 | if (!rc) | |
3382 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3383 | "Port %d Extent %3d, Size %3d\n", | |
3384 | phba->brd_no, ext_cnt, ext_size); | |
3385 | else | |
3386 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3387 | "N/A\n"); | |
3388 | ||
3389 | return len; | |
3390 | } | |
3391 | ||
3392 | /** | |
3393 | * lpfc_idiag_extacc_drivr_get - get driver extent information | |
3394 | * @phba: pointer to lpfc hba data structure. | |
3395 | * @pbuffer: pointer to internal buffer. | |
3396 | * @len: length into the internal buffer data has been copied. | |
3397 | * | |
3398 | * Description: | |
3399 | * This routine is to get the driver extent information. | |
3400 | * | |
3401 | * Returns: | |
3402 | * overall lenth of the data read into the internal buffer. | |
3403 | **/ | |
3404 | static int | |
3405 | lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len) | |
3406 | { | |
3407 | struct lpfc_rsrc_blks *rsrc_blks; | |
3408 | int index; | |
3409 | ||
3410 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3411 | "\nDriver Extents Information:\n"); | |
3412 | ||
3413 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3414 | "\tVPI extents:\n"); | |
3415 | index = 0; | |
3416 | list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) { | |
3417 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3418 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
3419 | index, rsrc_blks->rsrc_start, | |
3420 | rsrc_blks->rsrc_size); | |
3421 | index++; | |
3422 | } | |
3423 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3424 | "\tVFI extents:\n"); | |
3425 | index = 0; | |
3426 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list, | |
3427 | list) { | |
3428 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3429 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
3430 | index, rsrc_blks->rsrc_start, | |
3431 | rsrc_blks->rsrc_size); | |
3432 | index++; | |
3433 | } | |
3434 | ||
3435 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3436 | "\tRPI extents:\n"); | |
3437 | index = 0; | |
3438 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list, | |
3439 | list) { | |
3440 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3441 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
3442 | index, rsrc_blks->rsrc_start, | |
3443 | rsrc_blks->rsrc_size); | |
3444 | index++; | |
3445 | } | |
3446 | ||
3447 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3448 | "\tXRI extents:\n"); | |
3449 | index = 0; | |
3450 | list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list, | |
3451 | list) { | |
3452 | len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len, | |
3453 | "\t\tBlock %3d: Start %4d, Count %4d\n", | |
3454 | index, rsrc_blks->rsrc_start, | |
3455 | rsrc_blks->rsrc_size); | |
3456 | index++; | |
3457 | } | |
3458 | ||
3459 | return len; | |
3460 | } | |
3461 | ||
3462 | /** | |
3463 | * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands | |
3464 | * @file: The file pointer to read from. | |
3465 | * @buf: The buffer to copy the user data from. | |
3466 | * @nbytes: The number of bytes to get. | |
3467 | * @ppos: The position in the file to start reading from. | |
3468 | * | |
3469 | * This routine get the debugfs idiag command struct from user space and then | |
3470 | * perform the syntax check for extent information access commands and sets | |
3471 | * up the necessary states in the idiag command struct accordingly. | |
3472 | * | |
3473 | * It returns the @nbytges passing in from debugfs user space when successful. | |
3474 | * In case of error conditions, it returns proper error code back to the user | |
3475 | * space. | |
3476 | **/ | |
3477 | static ssize_t | |
3478 | lpfc_idiag_extacc_write(struct file *file, const char __user *buf, | |
3479 | size_t nbytes, loff_t *ppos) | |
3480 | { | |
3481 | struct lpfc_debug *debug = file->private_data; | |
3482 | uint32_t ext_map; | |
3483 | int rc; | |
3484 | ||
3485 | /* This is a user write operation */ | |
3486 | debug->op = LPFC_IDIAG_OP_WR; | |
3487 | ||
3488 | rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd); | |
3489 | if (rc < 0) | |
3490 | return rc; | |
3491 | ||
3492 | ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; | |
3493 | ||
3494 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) | |
3495 | goto error_out; | |
3496 | if (rc != LPFC_EXT_ACC_CMD_ARG) | |
3497 | goto error_out; | |
3498 | if (!(ext_map & LPFC_EXT_ACC_ALL)) | |
3499 | goto error_out; | |
3500 | ||
3501 | return nbytes; | |
3502 | error_out: | |
3503 | /* Clean out command structure on command error out */ | |
3504 | memset(&idiag, 0, sizeof(idiag)); | |
3505 | return -EINVAL; | |
3506 | } | |
3507 | ||
3508 | /** | |
3509 | * lpfc_idiag_extacc_read - idiag debugfs read access to extent information | |
3510 | * @file: The file pointer to read from. | |
3511 | * @buf: The buffer to copy the data to. | |
3512 | * @nbytes: The number of bytes to read. | |
3513 | * @ppos: The position in the file to start reading from. | |
3514 | * | |
3515 | * Description: | |
3516 | * This routine reads data from the proper extent information according to | |
3517 | * the idiag command, and copies to user @buf. | |
3518 | * | |
3519 | * Returns: | |
3520 | * This function returns the amount of data that was read (this could be less | |
3521 | * than @nbytes if the end of the file was reached) or a negative error value. | |
3522 | **/ | |
3523 | static ssize_t | |
3524 | lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes, | |
3525 | loff_t *ppos) | |
3526 | { | |
3527 | struct lpfc_debug *debug = file->private_data; | |
3528 | struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private; | |
3529 | char *pbuffer; | |
3530 | uint32_t ext_map; | |
3531 | int len = 0; | |
3532 | ||
3533 | /* This is a user read operation */ | |
3534 | debug->op = LPFC_IDIAG_OP_RD; | |
3535 | ||
3536 | if (!debug->buffer) | |
3537 | debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL); | |
3538 | if (!debug->buffer) | |
3539 | return 0; | |
3540 | pbuffer = debug->buffer; | |
3541 | if (*ppos) | |
3542 | return 0; | |
3543 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD) | |
3544 | return 0; | |
3545 | ||
3546 | ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX]; | |
3547 | if (ext_map & LPFC_EXT_ACC_AVAIL) | |
3548 | len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len); | |
3549 | if (ext_map & LPFC_EXT_ACC_ALLOC) | |
3550 | len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len); | |
3551 | if (ext_map & LPFC_EXT_ACC_DRIVR) | |
3552 | len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len); | |
3553 | ||
3554 | return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len); | |
3555 | } | |
3556 | ||
3557 | #undef lpfc_debugfs_op_disc_trc | |
3558 | static const struct file_operations lpfc_debugfs_op_disc_trc = { | |
3559 | .owner = THIS_MODULE, | |
3560 | .open = lpfc_debugfs_disc_trc_open, | |
3561 | .llseek = lpfc_debugfs_lseek, | |
3562 | .read = lpfc_debugfs_read, | |
3563 | .release = lpfc_debugfs_release, | |
3564 | }; | |
3565 | ||
3566 | #undef lpfc_debugfs_op_nodelist | |
3567 | static const struct file_operations lpfc_debugfs_op_nodelist = { | |
3568 | .owner = THIS_MODULE, | |
3569 | .open = lpfc_debugfs_nodelist_open, | |
3570 | .llseek = lpfc_debugfs_lseek, | |
3571 | .read = lpfc_debugfs_read, | |
3572 | .release = lpfc_debugfs_release, | |
3573 | }; | |
3574 | ||
3575 | #undef lpfc_debugfs_op_hbqinfo | |
3576 | static const struct file_operations lpfc_debugfs_op_hbqinfo = { | |
3577 | .owner = THIS_MODULE, | |
3578 | .open = lpfc_debugfs_hbqinfo_open, | |
3579 | .llseek = lpfc_debugfs_lseek, | |
3580 | .read = lpfc_debugfs_read, | |
3581 | .release = lpfc_debugfs_release, | |
3582 | }; | |
3583 | ||
3584 | #undef lpfc_debugfs_op_dumpHBASlim | |
3585 | static const struct file_operations lpfc_debugfs_op_dumpHBASlim = { | |
3586 | .owner = THIS_MODULE, | |
3587 | .open = lpfc_debugfs_dumpHBASlim_open, | |
3588 | .llseek = lpfc_debugfs_lseek, | |
3589 | .read = lpfc_debugfs_read, | |
3590 | .release = lpfc_debugfs_release, | |
3591 | }; | |
3592 | ||
3593 | #undef lpfc_debugfs_op_dumpHostSlim | |
3594 | static const struct file_operations lpfc_debugfs_op_dumpHostSlim = { | |
3595 | .owner = THIS_MODULE, | |
3596 | .open = lpfc_debugfs_dumpHostSlim_open, | |
3597 | .llseek = lpfc_debugfs_lseek, | |
3598 | .read = lpfc_debugfs_read, | |
3599 | .release = lpfc_debugfs_release, | |
3600 | }; | |
3601 | ||
3602 | #undef lpfc_debugfs_op_dumpData | |
3603 | static const struct file_operations lpfc_debugfs_op_dumpData = { | |
3604 | .owner = THIS_MODULE, | |
3605 | .open = lpfc_debugfs_dumpData_open, | |
3606 | .llseek = lpfc_debugfs_lseek, | |
3607 | .read = lpfc_debugfs_read, | |
3608 | .write = lpfc_debugfs_dumpDataDif_write, | |
3609 | .release = lpfc_debugfs_dumpDataDif_release, | |
3610 | }; | |
3611 | ||
3612 | #undef lpfc_debugfs_op_dumpDif | |
3613 | static const struct file_operations lpfc_debugfs_op_dumpDif = { | |
e2a0a9d6 JS |
3614 | .owner = THIS_MODULE, |
3615 | .open = lpfc_debugfs_dumpDif_open, | |
3616 | .llseek = lpfc_debugfs_lseek, | |
3617 | .read = lpfc_debugfs_read, | |
3618 | .write = lpfc_debugfs_dumpDataDif_write, | |
3619 | .release = lpfc_debugfs_dumpDataDif_release, | |
3620 | }; | |
3621 | ||
f9bb2da1 JS |
3622 | #undef lpfc_debugfs_op_dif_err |
3623 | static const struct file_operations lpfc_debugfs_op_dif_err = { | |
3624 | .owner = THIS_MODULE, | |
234e3405 | 3625 | .open = simple_open, |
f9bb2da1 JS |
3626 | .llseek = lpfc_debugfs_lseek, |
3627 | .read = lpfc_debugfs_dif_err_read, | |
3628 | .write = lpfc_debugfs_dif_err_write, | |
3629 | .release = lpfc_debugfs_dif_err_release, | |
3630 | }; | |
3631 | ||
a58cbd52 | 3632 | #undef lpfc_debugfs_op_slow_ring_trc |
71fa7421 | 3633 | static const struct file_operations lpfc_debugfs_op_slow_ring_trc = { |
a58cbd52 JS |
3634 | .owner = THIS_MODULE, |
3635 | .open = lpfc_debugfs_slow_ring_trc_open, | |
3636 | .llseek = lpfc_debugfs_lseek, | |
3637 | .read = lpfc_debugfs_read, | |
3638 | .release = lpfc_debugfs_release, | |
3639 | }; | |
3640 | ||
858c9f6c JS |
3641 | static struct dentry *lpfc_debugfs_root = NULL; |
3642 | static atomic_t lpfc_debugfs_hba_count; | |
2a622bfb JS |
3643 | |
3644 | /* | |
3645 | * File operations for the iDiag debugfs | |
3646 | */ | |
3647 | #undef lpfc_idiag_op_pciCfg | |
3648 | static const struct file_operations lpfc_idiag_op_pciCfg = { | |
3649 | .owner = THIS_MODULE, | |
3650 | .open = lpfc_idiag_open, | |
3651 | .llseek = lpfc_debugfs_lseek, | |
3652 | .read = lpfc_idiag_pcicfg_read, | |
3653 | .write = lpfc_idiag_pcicfg_write, | |
3654 | .release = lpfc_idiag_cmd_release, | |
3655 | }; | |
3656 | ||
b76f2dc9 JS |
3657 | #undef lpfc_idiag_op_barAcc |
3658 | static const struct file_operations lpfc_idiag_op_barAcc = { | |
3659 | .owner = THIS_MODULE, | |
3660 | .open = lpfc_idiag_open, | |
3661 | .llseek = lpfc_debugfs_lseek, | |
3662 | .read = lpfc_idiag_baracc_read, | |
3663 | .write = lpfc_idiag_baracc_write, | |
3664 | .release = lpfc_idiag_cmd_release, | |
3665 | }; | |
3666 | ||
2a622bfb JS |
3667 | #undef lpfc_idiag_op_queInfo |
3668 | static const struct file_operations lpfc_idiag_op_queInfo = { | |
3669 | .owner = THIS_MODULE, | |
3670 | .open = lpfc_idiag_open, | |
3671 | .read = lpfc_idiag_queinfo_read, | |
3672 | .release = lpfc_idiag_release, | |
3673 | }; | |
3674 | ||
b76f2dc9 | 3675 | #undef lpfc_idiag_op_queAcc |
86a80846 JS |
3676 | static const struct file_operations lpfc_idiag_op_queAcc = { |
3677 | .owner = THIS_MODULE, | |
3678 | .open = lpfc_idiag_open, | |
3679 | .llseek = lpfc_debugfs_lseek, | |
3680 | .read = lpfc_idiag_queacc_read, | |
3681 | .write = lpfc_idiag_queacc_write, | |
3682 | .release = lpfc_idiag_cmd_release, | |
3683 | }; | |
3684 | ||
b76f2dc9 | 3685 | #undef lpfc_idiag_op_drbAcc |
86a80846 JS |
3686 | static const struct file_operations lpfc_idiag_op_drbAcc = { |
3687 | .owner = THIS_MODULE, | |
3688 | .open = lpfc_idiag_open, | |
3689 | .llseek = lpfc_debugfs_lseek, | |
3690 | .read = lpfc_idiag_drbacc_read, | |
3691 | .write = lpfc_idiag_drbacc_write, | |
3692 | .release = lpfc_idiag_cmd_release, | |
3693 | }; | |
3694 | ||
b76f2dc9 JS |
3695 | #undef lpfc_idiag_op_ctlAcc |
3696 | static const struct file_operations lpfc_idiag_op_ctlAcc = { | |
3697 | .owner = THIS_MODULE, | |
3698 | .open = lpfc_idiag_open, | |
3699 | .llseek = lpfc_debugfs_lseek, | |
3700 | .read = lpfc_idiag_ctlacc_read, | |
3701 | .write = lpfc_idiag_ctlacc_write, | |
3702 | .release = lpfc_idiag_cmd_release, | |
3703 | }; | |
3704 | ||
3705 | #undef lpfc_idiag_op_mbxAcc | |
3706 | static const struct file_operations lpfc_idiag_op_mbxAcc = { | |
3707 | .owner = THIS_MODULE, | |
3708 | .open = lpfc_idiag_open, | |
3709 | .llseek = lpfc_debugfs_lseek, | |
3710 | .read = lpfc_idiag_mbxacc_read, | |
3711 | .write = lpfc_idiag_mbxacc_write, | |
3712 | .release = lpfc_idiag_cmd_release, | |
3713 | }; | |
3714 | ||
3715 | #undef lpfc_idiag_op_extAcc | |
3716 | static const struct file_operations lpfc_idiag_op_extAcc = { | |
3717 | .owner = THIS_MODULE, | |
3718 | .open = lpfc_idiag_open, | |
3719 | .llseek = lpfc_debugfs_lseek, | |
3720 | .read = lpfc_idiag_extacc_read, | |
3721 | .write = lpfc_idiag_extacc_write, | |
3722 | .release = lpfc_idiag_cmd_release, | |
3723 | }; | |
3724 | ||
858c9f6c JS |
3725 | #endif |
3726 | ||
b76f2dc9 JS |
3727 | /* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command |
3728 | * @phba: Pointer to HBA context object. | |
3729 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
3730 | * | |
3731 | * Description: | |
3732 | * This routine dump a bsg pass-through non-embedded mailbox command with | |
3733 | * external buffer. | |
3734 | **/ | |
3735 | void | |
3736 | lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp, | |
3737 | enum mbox_type mbox_tp, enum dma_type dma_tp, | |
3738 | enum sta_type sta_tp, | |
3739 | struct lpfc_dmabuf *dmabuf, uint32_t ext_buf) | |
3740 | { | |
3741 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
3742 | uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt; | |
3743 | char line_buf[LPFC_MBX_ACC_LBUF_SZ]; | |
3744 | int len = 0; | |
3745 | uint32_t do_dump = 0; | |
3746 | uint32_t *pword; | |
3747 | uint32_t i; | |
3748 | ||
3749 | if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP) | |
3750 | return; | |
3751 | ||
3752 | mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
3753 | mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
3754 | mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
3755 | mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
3756 | ||
3757 | if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) || | |
3758 | (*mbx_dump_cnt == 0) || | |
3759 | (*mbx_word_cnt == 0)) | |
3760 | return; | |
3761 | ||
3762 | if (*mbx_mbox_cmd != 0x9B) | |
3763 | return; | |
3764 | ||
3765 | if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) { | |
3766 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) { | |
3767 | do_dump |= LPFC_BSG_DMP_MBX_RD_MBX; | |
3768 | printk(KERN_ERR "\nRead mbox command (x%x), " | |
3769 | "nemb:0x%x, extbuf_cnt:%d:\n", | |
3770 | sta_tp, nemb_tp, ext_buf); | |
3771 | } | |
3772 | } | |
3773 | if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) { | |
3774 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) { | |
3775 | do_dump |= LPFC_BSG_DMP_MBX_RD_BUF; | |
3776 | printk(KERN_ERR "\nRead mbox buffer (x%x), " | |
3777 | "nemb:0x%x, extbuf_seq:%d:\n", | |
3778 | sta_tp, nemb_tp, ext_buf); | |
3779 | } | |
3780 | } | |
3781 | if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) { | |
3782 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) { | |
3783 | do_dump |= LPFC_BSG_DMP_MBX_WR_MBX; | |
3784 | printk(KERN_ERR "\nWrite mbox command (x%x), " | |
3785 | "nemb:0x%x, extbuf_cnt:%d:\n", | |
3786 | sta_tp, nemb_tp, ext_buf); | |
3787 | } | |
3788 | } | |
3789 | if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) { | |
3790 | if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) { | |
3791 | do_dump |= LPFC_BSG_DMP_MBX_WR_BUF; | |
3792 | printk(KERN_ERR "\nWrite mbox buffer (x%x), " | |
3793 | "nemb:0x%x, extbuf_seq:%d:\n", | |
3794 | sta_tp, nemb_tp, ext_buf); | |
3795 | } | |
3796 | } | |
3797 | ||
3798 | /* dump buffer content */ | |
3799 | if (do_dump) { | |
3800 | pword = (uint32_t *)dmabuf->virt; | |
3801 | for (i = 0; i < *mbx_word_cnt; i++) { | |
3802 | if (!(i % 8)) { | |
3803 | if (i != 0) | |
3804 | printk(KERN_ERR "%s\n", line_buf); | |
3805 | len = 0; | |
3806 | len += snprintf(line_buf+len, | |
3807 | LPFC_MBX_ACC_LBUF_SZ-len, | |
3808 | "%03d: ", i); | |
3809 | } | |
3810 | len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, | |
3811 | "%08x ", (uint32_t)*pword); | |
3812 | pword++; | |
3813 | } | |
3814 | if ((i - 1) % 8) | |
3815 | printk(KERN_ERR "%s\n", line_buf); | |
3816 | (*mbx_dump_cnt)--; | |
3817 | } | |
3818 | ||
3819 | /* Clean out command structure on reaching dump count */ | |
3820 | if (*mbx_dump_cnt == 0) | |
3821 | memset(&idiag, 0, sizeof(idiag)); | |
3822 | return; | |
3823 | #endif | |
3824 | } | |
3825 | ||
3826 | /* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command | |
3827 | * @phba: Pointer to HBA context object. | |
3828 | * @dmabuf: Pointer to a DMA buffer descriptor. | |
3829 | * | |
3830 | * Description: | |
3831 | * This routine dump a pass-through non-embedded mailbox command from issue | |
3832 | * mailbox command. | |
3833 | **/ | |
3834 | void | |
3835 | lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox) | |
3836 | { | |
3837 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
3838 | uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd; | |
3839 | char line_buf[LPFC_MBX_ACC_LBUF_SZ]; | |
3840 | int len = 0; | |
3841 | uint32_t *pword; | |
3842 | uint8_t *pbyte; | |
3843 | uint32_t i, j; | |
3844 | ||
3845 | if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) | |
3846 | return; | |
3847 | ||
3848 | mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX]; | |
3849 | mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX]; | |
3850 | mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX]; | |
3851 | mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX]; | |
3852 | ||
3853 | if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) || | |
3854 | (*mbx_dump_cnt == 0) || | |
3855 | (*mbx_word_cnt == 0)) | |
3856 | return; | |
3857 | ||
3858 | if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) && | |
3859 | (*mbx_mbox_cmd != pmbox->mbxCommand)) | |
3860 | return; | |
3861 | ||
3862 | /* dump buffer content */ | |
3863 | if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) { | |
3864 | printk(KERN_ERR "Mailbox command:0x%x dump by word:\n", | |
3865 | pmbox->mbxCommand); | |
3866 | pword = (uint32_t *)pmbox; | |
3867 | for (i = 0; i < *mbx_word_cnt; i++) { | |
3868 | if (!(i % 8)) { | |
3869 | if (i != 0) | |
3870 | printk(KERN_ERR "%s\n", line_buf); | |
3871 | len = 0; | |
3872 | memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); | |
3873 | len += snprintf(line_buf+len, | |
3874 | LPFC_MBX_ACC_LBUF_SZ-len, | |
3875 | "%03d: ", i); | |
3876 | } | |
3877 | len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len, | |
3878 | "%08x ", | |
3879 | ((uint32_t)*pword) & 0xffffffff); | |
3880 | pword++; | |
3881 | } | |
3882 | if ((i - 1) % 8) | |
3883 | printk(KERN_ERR "%s\n", line_buf); | |
3884 | printk(KERN_ERR "\n"); | |
3885 | } | |
3886 | if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) { | |
3887 | printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n", | |
3888 | pmbox->mbxCommand); | |
3889 | pbyte = (uint8_t *)pmbox; | |
3890 | for (i = 0; i < *mbx_word_cnt; i++) { | |
3891 | if (!(i % 8)) { | |
3892 | if (i != 0) | |
3893 | printk(KERN_ERR "%s\n", line_buf); | |
3894 | len = 0; | |
3895 | memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ); | |
3896 | len += snprintf(line_buf+len, | |
3897 | LPFC_MBX_ACC_LBUF_SZ-len, | |
3898 | "%03d: ", i); | |
3899 | } | |
3900 | for (j = 0; j < 4; j++) { | |
3901 | len += snprintf(line_buf+len, | |
3902 | LPFC_MBX_ACC_LBUF_SZ-len, | |
3903 | "%02x", | |
3904 | ((uint8_t)*pbyte) & 0xff); | |
3905 | pbyte++; | |
3906 | } | |
3907 | len += snprintf(line_buf+len, | |
3908 | LPFC_MBX_ACC_LBUF_SZ-len, " "); | |
3909 | } | |
3910 | if ((i - 1) % 8) | |
3911 | printk(KERN_ERR "%s\n", line_buf); | |
3912 | printk(KERN_ERR "\n"); | |
3913 | } | |
3914 | (*mbx_dump_cnt)--; | |
3915 | ||
3916 | /* Clean out command structure on reaching dump count */ | |
3917 | if (*mbx_dump_cnt == 0) | |
3918 | memset(&idiag, 0, sizeof(idiag)); | |
3919 | return; | |
3920 | #endif | |
3921 | } | |
3922 | ||
e59058c4 | 3923 | /** |
3621a710 | 3924 | * lpfc_debugfs_initialize - Initialize debugfs for a vport |
e59058c4 JS |
3925 | * @vport: The vport pointer to initialize. |
3926 | * | |
3927 | * Description: | |
3928 | * When Debugfs is configured this routine sets up the lpfc debugfs file system. | |
3929 | * If not already created, this routine will create the lpfc directory, and | |
3930 | * lpfcX directory (for this HBA), and vportX directory for this vport. It will | |
3931 | * also create each file used to access lpfc specific debugfs information. | |
3932 | **/ | |
858c9f6c JS |
3933 | inline void |
3934 | lpfc_debugfs_initialize(struct lpfc_vport *vport) | |
3935 | { | |
923e4b6a | 3936 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
858c9f6c JS |
3937 | struct lpfc_hba *phba = vport->phba; |
3938 | char name[64]; | |
3939 | uint32_t num, i; | |
3940 | ||
3941 | if (!lpfc_debugfs_enable) | |
3942 | return; | |
3943 | ||
a58cbd52 | 3944 | /* Setup lpfc root directory */ |
858c9f6c JS |
3945 | if (!lpfc_debugfs_root) { |
3946 | lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL); | |
3947 | atomic_set(&lpfc_debugfs_hba_count, 0); | |
a58cbd52 | 3948 | if (!lpfc_debugfs_root) { |
e8b62011 | 3949 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 3950 | "0408 Cannot create debugfs root\n"); |
858c9f6c | 3951 | goto debug_failed; |
a58cbd52 | 3952 | } |
858c9f6c | 3953 | } |
a58cbd52 JS |
3954 | if (!lpfc_debugfs_start_time) |
3955 | lpfc_debugfs_start_time = jiffies; | |
3956 | ||
2a622bfb JS |
3957 | /* Setup funcX directory for specific HBA PCI function */ |
3958 | snprintf(name, sizeof(name), "fn%d", phba->brd_no); | |
858c9f6c JS |
3959 | if (!phba->hba_debugfs_root) { |
3960 | phba->hba_debugfs_root = | |
3961 | debugfs_create_dir(name, lpfc_debugfs_root); | |
a58cbd52 | 3962 | if (!phba->hba_debugfs_root) { |
e8b62011 | 3963 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 3964 | "0412 Cannot create debugfs hba\n"); |
858c9f6c | 3965 | goto debug_failed; |
a58cbd52 | 3966 | } |
858c9f6c JS |
3967 | atomic_inc(&lpfc_debugfs_hba_count); |
3968 | atomic_set(&phba->debugfs_vport_count, 0); | |
a58cbd52 | 3969 | |
78b2d852 JS |
3970 | /* Setup hbqinfo */ |
3971 | snprintf(name, sizeof(name), "hbqinfo"); | |
3972 | phba->debug_hbqinfo = | |
3973 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
3974 | phba->hba_debugfs_root, | |
3975 | phba, &lpfc_debugfs_op_hbqinfo); | |
3976 | if (!phba->debug_hbqinfo) { | |
3977 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
d7c255b2 | 3978 | "0411 Cannot create debugfs hbqinfo\n"); |
78b2d852 JS |
3979 | goto debug_failed; |
3980 | } | |
3981 | ||
c95d6c6c | 3982 | /* Setup dumpHBASlim */ |
2a622bfb JS |
3983 | if (phba->sli_rev < LPFC_SLI_REV4) { |
3984 | snprintf(name, sizeof(name), "dumpHBASlim"); | |
3985 | phba->debug_dumpHBASlim = | |
3986 | debugfs_create_file(name, | |
3987 | S_IFREG|S_IRUGO|S_IWUSR, | |
3988 | phba->hba_debugfs_root, | |
3989 | phba, &lpfc_debugfs_op_dumpHBASlim); | |
3990 | if (!phba->debug_dumpHBASlim) { | |
3991 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
3992 | "0413 Cannot create debugfs " | |
3993 | "dumpHBASlim\n"); | |
3994 | goto debug_failed; | |
3995 | } | |
3996 | } else | |
3997 | phba->debug_dumpHBASlim = NULL; | |
c95d6c6c JS |
3998 | |
3999 | /* Setup dumpHostSlim */ | |
2a622bfb JS |
4000 | if (phba->sli_rev < LPFC_SLI_REV4) { |
4001 | snprintf(name, sizeof(name), "dumpHostSlim"); | |
4002 | phba->debug_dumpHostSlim = | |
4003 | debugfs_create_file(name, | |
4004 | S_IFREG|S_IRUGO|S_IWUSR, | |
4005 | phba->hba_debugfs_root, | |
4006 | phba, &lpfc_debugfs_op_dumpHostSlim); | |
4007 | if (!phba->debug_dumpHostSlim) { | |
4008 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4009 | "0414 Cannot create debugfs " | |
4010 | "dumpHostSlim\n"); | |
4011 | goto debug_failed; | |
4012 | } | |
4013 | } else | |
4014 | phba->debug_dumpHBASlim = NULL; | |
a58cbd52 | 4015 | |
e2a0a9d6 JS |
4016 | /* Setup dumpData */ |
4017 | snprintf(name, sizeof(name), "dumpData"); | |
4018 | phba->debug_dumpData = | |
4019 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4020 | phba->hba_debugfs_root, | |
4021 | phba, &lpfc_debugfs_op_dumpData); | |
4022 | if (!phba->debug_dumpData) { | |
4023 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4024 | "0800 Cannot create debugfs dumpData\n"); | |
4025 | goto debug_failed; | |
4026 | } | |
4027 | ||
4028 | /* Setup dumpDif */ | |
4029 | snprintf(name, sizeof(name), "dumpDif"); | |
4030 | phba->debug_dumpDif = | |
4031 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4032 | phba->hba_debugfs_root, | |
4033 | phba, &lpfc_debugfs_op_dumpDif); | |
4034 | if (!phba->debug_dumpDif) { | |
4035 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4036 | "0801 Cannot create debugfs dumpDif\n"); | |
4037 | goto debug_failed; | |
4038 | } | |
4039 | ||
f9bb2da1 JS |
4040 | /* Setup DIF Error Injections */ |
4041 | snprintf(name, sizeof(name), "InjErrLBA"); | |
4042 | phba->debug_InjErrLBA = | |
4043 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4044 | phba->hba_debugfs_root, | |
4045 | phba, &lpfc_debugfs_op_dif_err); | |
4046 | if (!phba->debug_InjErrLBA) { | |
4047 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4048 | "0807 Cannot create debugfs InjErrLBA\n"); | |
4049 | goto debug_failed; | |
4050 | } | |
4051 | phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF; | |
4052 | ||
4ac9b226 JS |
4053 | snprintf(name, sizeof(name), "InjErrNPortID"); |
4054 | phba->debug_InjErrNPortID = | |
4055 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4056 | phba->hba_debugfs_root, | |
4057 | phba, &lpfc_debugfs_op_dif_err); | |
4058 | if (!phba->debug_InjErrNPortID) { | |
4059 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4060 | "0809 Cannot create debugfs InjErrNPortID\n"); | |
4061 | goto debug_failed; | |
4062 | } | |
4063 | ||
4064 | snprintf(name, sizeof(name), "InjErrWWPN"); | |
4065 | phba->debug_InjErrWWPN = | |
4066 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4067 | phba->hba_debugfs_root, | |
4068 | phba, &lpfc_debugfs_op_dif_err); | |
4069 | if (!phba->debug_InjErrWWPN) { | |
4070 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4071 | "0810 Cannot create debugfs InjErrWWPN\n"); | |
4072 | goto debug_failed; | |
4073 | } | |
4074 | ||
f9bb2da1 JS |
4075 | snprintf(name, sizeof(name), "writeGuardInjErr"); |
4076 | phba->debug_writeGuard = | |
4077 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4078 | phba->hba_debugfs_root, | |
4079 | phba, &lpfc_debugfs_op_dif_err); | |
4080 | if (!phba->debug_writeGuard) { | |
4081 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4082 | "0802 Cannot create debugfs writeGuard\n"); | |
4083 | goto debug_failed; | |
4084 | } | |
4085 | ||
4086 | snprintf(name, sizeof(name), "writeAppInjErr"); | |
4087 | phba->debug_writeApp = | |
4088 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4089 | phba->hba_debugfs_root, | |
4090 | phba, &lpfc_debugfs_op_dif_err); | |
4091 | if (!phba->debug_writeApp) { | |
4092 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4093 | "0803 Cannot create debugfs writeApp\n"); | |
4094 | goto debug_failed; | |
4095 | } | |
4096 | ||
4097 | snprintf(name, sizeof(name), "writeRefInjErr"); | |
4098 | phba->debug_writeRef = | |
4099 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4100 | phba->hba_debugfs_root, | |
4101 | phba, &lpfc_debugfs_op_dif_err); | |
4102 | if (!phba->debug_writeRef) { | |
4103 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4104 | "0804 Cannot create debugfs writeRef\n"); | |
4105 | goto debug_failed; | |
4106 | } | |
4107 | ||
acd6859b JS |
4108 | snprintf(name, sizeof(name), "readGuardInjErr"); |
4109 | phba->debug_readGuard = | |
4110 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4111 | phba->hba_debugfs_root, | |
4112 | phba, &lpfc_debugfs_op_dif_err); | |
4113 | if (!phba->debug_readGuard) { | |
4114 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4115 | "0808 Cannot create debugfs readGuard\n"); | |
4116 | goto debug_failed; | |
4117 | } | |
4118 | ||
f9bb2da1 JS |
4119 | snprintf(name, sizeof(name), "readAppInjErr"); |
4120 | phba->debug_readApp = | |
4121 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4122 | phba->hba_debugfs_root, | |
4123 | phba, &lpfc_debugfs_op_dif_err); | |
4124 | if (!phba->debug_readApp) { | |
4125 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4126 | "0805 Cannot create debugfs readApp\n"); | |
4127 | goto debug_failed; | |
4128 | } | |
4129 | ||
4130 | snprintf(name, sizeof(name), "readRefInjErr"); | |
4131 | phba->debug_readRef = | |
4132 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4133 | phba->hba_debugfs_root, | |
4134 | phba, &lpfc_debugfs_op_dif_err); | |
4135 | if (!phba->debug_readRef) { | |
4136 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4137 | "0806 Cannot create debugfs readApp\n"); | |
4138 | goto debug_failed; | |
4139 | } | |
4140 | ||
a58cbd52 JS |
4141 | /* Setup slow ring trace */ |
4142 | if (lpfc_debugfs_max_slow_ring_trc) { | |
4143 | num = lpfc_debugfs_max_slow_ring_trc - 1; | |
4144 | if (num & lpfc_debugfs_max_slow_ring_trc) { | |
4145 | /* Change to be a power of 2 */ | |
4146 | num = lpfc_debugfs_max_slow_ring_trc; | |
4147 | i = 0; | |
4148 | while (num > 1) { | |
4149 | num = num >> 1; | |
4150 | i++; | |
4151 | } | |
4152 | lpfc_debugfs_max_slow_ring_trc = (1 << i); | |
4153 | printk(KERN_ERR | |
e8b62011 JS |
4154 | "lpfc_debugfs_max_disc_trc changed to " |
4155 | "%d\n", lpfc_debugfs_max_disc_trc); | |
a58cbd52 JS |
4156 | } |
4157 | } | |
4158 | ||
a58cbd52 JS |
4159 | snprintf(name, sizeof(name), "slow_ring_trace"); |
4160 | phba->debug_slow_ring_trc = | |
4161 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4162 | phba->hba_debugfs_root, | |
4163 | phba, &lpfc_debugfs_op_slow_ring_trc); | |
4164 | if (!phba->debug_slow_ring_trc) { | |
e8b62011 | 4165 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 4166 | "0415 Cannot create debugfs " |
e8b62011 | 4167 | "slow_ring_trace\n"); |
a58cbd52 JS |
4168 | goto debug_failed; |
4169 | } | |
4170 | if (!phba->slow_ring_trc) { | |
4171 | phba->slow_ring_trc = kmalloc( | |
4172 | (sizeof(struct lpfc_debugfs_trc) * | |
4173 | lpfc_debugfs_max_slow_ring_trc), | |
4174 | GFP_KERNEL); | |
4175 | if (!phba->slow_ring_trc) { | |
e8b62011 | 4176 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 4177 | "0416 Cannot create debugfs " |
e8b62011 | 4178 | "slow_ring buffer\n"); |
a58cbd52 JS |
4179 | goto debug_failed; |
4180 | } | |
4181 | atomic_set(&phba->slow_ring_trc_cnt, 0); | |
4182 | memset(phba->slow_ring_trc, 0, | |
4183 | (sizeof(struct lpfc_debugfs_trc) * | |
4184 | lpfc_debugfs_max_slow_ring_trc)); | |
4185 | } | |
858c9f6c JS |
4186 | } |
4187 | ||
4188 | snprintf(name, sizeof(name), "vport%d", vport->vpi); | |
4189 | if (!vport->vport_debugfs_root) { | |
4190 | vport->vport_debugfs_root = | |
4191 | debugfs_create_dir(name, phba->hba_debugfs_root); | |
a58cbd52 | 4192 | if (!vport->vport_debugfs_root) { |
e8b62011 | 4193 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
25985edc | 4194 | "0417 Can't create debugfs\n"); |
858c9f6c | 4195 | goto debug_failed; |
a58cbd52 | 4196 | } |
858c9f6c JS |
4197 | atomic_inc(&phba->debugfs_vport_count); |
4198 | } | |
4199 | ||
a58cbd52 JS |
4200 | if (lpfc_debugfs_max_disc_trc) { |
4201 | num = lpfc_debugfs_max_disc_trc - 1; | |
4202 | if (num & lpfc_debugfs_max_disc_trc) { | |
4203 | /* Change to be a power of 2 */ | |
4204 | num = lpfc_debugfs_max_disc_trc; | |
4205 | i = 0; | |
4206 | while (num > 1) { | |
4207 | num = num >> 1; | |
4208 | i++; | |
4209 | } | |
4210 | lpfc_debugfs_max_disc_trc = (1 << i); | |
4211 | printk(KERN_ERR | |
e8b62011 JS |
4212 | "lpfc_debugfs_max_disc_trc changed to %d\n", |
4213 | lpfc_debugfs_max_disc_trc); | |
a58cbd52 JS |
4214 | } |
4215 | } | |
858c9f6c | 4216 | |
ff86ba59 | 4217 | vport->disc_trc = kzalloc( |
a58cbd52 | 4218 | (sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc), |
858c9f6c JS |
4219 | GFP_KERNEL); |
4220 | ||
a58cbd52 | 4221 | if (!vport->disc_trc) { |
e8b62011 | 4222 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 4223 | "0418 Cannot create debugfs disc trace " |
e8b62011 | 4224 | "buffer\n"); |
858c9f6c | 4225 | goto debug_failed; |
a58cbd52 JS |
4226 | } |
4227 | atomic_set(&vport->disc_trc_cnt, 0); | |
858c9f6c JS |
4228 | |
4229 | snprintf(name, sizeof(name), "discovery_trace"); | |
4230 | vport->debug_disc_trc = | |
4231 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4232 | vport->vport_debugfs_root, | |
4233 | vport, &lpfc_debugfs_op_disc_trc); | |
4234 | if (!vport->debug_disc_trc) { | |
e8b62011 | 4235 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
d7c255b2 | 4236 | "0419 Cannot create debugfs " |
e8b62011 | 4237 | "discovery_trace\n"); |
858c9f6c JS |
4238 | goto debug_failed; |
4239 | } | |
4240 | snprintf(name, sizeof(name), "nodelist"); | |
4241 | vport->debug_nodelist = | |
4242 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4243 | vport->vport_debugfs_root, | |
4244 | vport, &lpfc_debugfs_op_nodelist); | |
4245 | if (!vport->debug_nodelist) { | |
e8b62011 | 4246 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
b76f2dc9 | 4247 | "2985 Can't create debugfs nodelist\n"); |
858c9f6c JS |
4248 | goto debug_failed; |
4249 | } | |
2a622bfb JS |
4250 | |
4251 | /* | |
4252 | * iDiag debugfs root entry points for SLI4 device only | |
4253 | */ | |
4254 | if (phba->sli_rev < LPFC_SLI_REV4) | |
4255 | goto debug_failed; | |
4256 | ||
4257 | snprintf(name, sizeof(name), "iDiag"); | |
4258 | if (!phba->idiag_root) { | |
4259 | phba->idiag_root = | |
4260 | debugfs_create_dir(name, phba->hba_debugfs_root); | |
4261 | if (!phba->idiag_root) { | |
4262 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4263 | "2922 Can't create idiag debugfs\n"); | |
4264 | goto debug_failed; | |
4265 | } | |
4266 | /* Initialize iDiag data structure */ | |
4267 | memset(&idiag, 0, sizeof(idiag)); | |
4268 | } | |
4269 | ||
4270 | /* iDiag read PCI config space */ | |
4271 | snprintf(name, sizeof(name), "pciCfg"); | |
4272 | if (!phba->idiag_pci_cfg) { | |
4273 | phba->idiag_pci_cfg = | |
4274 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4275 | phba->idiag_root, phba, &lpfc_idiag_op_pciCfg); | |
4276 | if (!phba->idiag_pci_cfg) { | |
4277 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4278 | "2923 Can't create idiag debugfs\n"); | |
4279 | goto debug_failed; | |
4280 | } | |
4281 | idiag.offset.last_rd = 0; | |
4282 | } | |
4283 | ||
b76f2dc9 JS |
4284 | /* iDiag PCI BAR access */ |
4285 | snprintf(name, sizeof(name), "barAcc"); | |
4286 | if (!phba->idiag_bar_acc) { | |
4287 | phba->idiag_bar_acc = | |
4288 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4289 | phba->idiag_root, phba, &lpfc_idiag_op_barAcc); | |
4290 | if (!phba->idiag_bar_acc) { | |
4291 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4292 | "3056 Can't create idiag debugfs\n"); | |
4293 | goto debug_failed; | |
4294 | } | |
4295 | idiag.offset.last_rd = 0; | |
4296 | } | |
4297 | ||
2a622bfb JS |
4298 | /* iDiag get PCI function queue information */ |
4299 | snprintf(name, sizeof(name), "queInfo"); | |
4300 | if (!phba->idiag_que_info) { | |
4301 | phba->idiag_que_info = | |
4302 | debugfs_create_file(name, S_IFREG|S_IRUGO, | |
4303 | phba->idiag_root, phba, &lpfc_idiag_op_queInfo); | |
4304 | if (!phba->idiag_que_info) { | |
4305 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4306 | "2924 Can't create idiag debugfs\n"); | |
4307 | goto debug_failed; | |
4308 | } | |
4309 | } | |
4310 | ||
86a80846 JS |
4311 | /* iDiag access PCI function queue */ |
4312 | snprintf(name, sizeof(name), "queAcc"); | |
4313 | if (!phba->idiag_que_acc) { | |
4314 | phba->idiag_que_acc = | |
4315 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4316 | phba->idiag_root, phba, &lpfc_idiag_op_queAcc); | |
4317 | if (!phba->idiag_que_acc) { | |
4318 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4319 | "2926 Can't create idiag debugfs\n"); | |
4320 | goto debug_failed; | |
4321 | } | |
4322 | } | |
4323 | ||
4324 | /* iDiag access PCI function doorbell registers */ | |
4325 | snprintf(name, sizeof(name), "drbAcc"); | |
4326 | if (!phba->idiag_drb_acc) { | |
4327 | phba->idiag_drb_acc = | |
4328 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4329 | phba->idiag_root, phba, &lpfc_idiag_op_drbAcc); | |
4330 | if (!phba->idiag_drb_acc) { | |
4331 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4332 | "2927 Can't create idiag debugfs\n"); | |
4333 | goto debug_failed; | |
4334 | } | |
4335 | } | |
4336 | ||
b76f2dc9 JS |
4337 | /* iDiag access PCI function control registers */ |
4338 | snprintf(name, sizeof(name), "ctlAcc"); | |
4339 | if (!phba->idiag_ctl_acc) { | |
4340 | phba->idiag_ctl_acc = | |
4341 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4342 | phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc); | |
4343 | if (!phba->idiag_ctl_acc) { | |
4344 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4345 | "2981 Can't create idiag debugfs\n"); | |
4346 | goto debug_failed; | |
4347 | } | |
4348 | } | |
4349 | ||
4350 | /* iDiag access mbox commands */ | |
4351 | snprintf(name, sizeof(name), "mbxAcc"); | |
4352 | if (!phba->idiag_mbx_acc) { | |
4353 | phba->idiag_mbx_acc = | |
4354 | debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, | |
4355 | phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc); | |
4356 | if (!phba->idiag_mbx_acc) { | |
4357 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4358 | "2980 Can't create idiag debugfs\n"); | |
4359 | goto debug_failed; | |
4360 | } | |
4361 | } | |
4362 | ||
4363 | /* iDiag extents access commands */ | |
4364 | if (phba->sli4_hba.extents_in_use) { | |
4365 | snprintf(name, sizeof(name), "extAcc"); | |
4366 | if (!phba->idiag_ext_acc) { | |
4367 | phba->idiag_ext_acc = | |
4368 | debugfs_create_file(name, | |
4369 | S_IFREG|S_IRUGO|S_IWUSR, | |
4370 | phba->idiag_root, phba, | |
4371 | &lpfc_idiag_op_extAcc); | |
4372 | if (!phba->idiag_ext_acc) { | |
4373 | lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, | |
4374 | "2986 Cant create " | |
4375 | "idiag debugfs\n"); | |
4376 | goto debug_failed; | |
4377 | } | |
4378 | } | |
4379 | } | |
4380 | ||
858c9f6c JS |
4381 | debug_failed: |
4382 | return; | |
4383 | #endif | |
4384 | } | |
4385 | ||
e59058c4 | 4386 | /** |
3621a710 | 4387 | * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport |
e59058c4 JS |
4388 | * @vport: The vport pointer to remove from debugfs. |
4389 | * | |
4390 | * Description: | |
4391 | * When Debugfs is configured this routine removes debugfs file system elements | |
4392 | * that are specific to this vport. It also checks to see if there are any | |
4393 | * users left for the debugfs directories associated with the HBA and driver. If | |
4394 | * this is the last user of the HBA directory or driver directory then it will | |
4395 | * remove those from the debugfs infrastructure as well. | |
4396 | **/ | |
858c9f6c JS |
4397 | inline void |
4398 | lpfc_debugfs_terminate(struct lpfc_vport *vport) | |
4399 | { | |
923e4b6a | 4400 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
858c9f6c JS |
4401 | struct lpfc_hba *phba = vport->phba; |
4402 | ||
4403 | if (vport->disc_trc) { | |
4404 | kfree(vport->disc_trc); | |
4405 | vport->disc_trc = NULL; | |
4406 | } | |
4407 | if (vport->debug_disc_trc) { | |
4408 | debugfs_remove(vport->debug_disc_trc); /* discovery_trace */ | |
4409 | vport->debug_disc_trc = NULL; | |
4410 | } | |
4411 | if (vport->debug_nodelist) { | |
4412 | debugfs_remove(vport->debug_nodelist); /* nodelist */ | |
4413 | vport->debug_nodelist = NULL; | |
4414 | } | |
4415 | if (vport->vport_debugfs_root) { | |
4416 | debugfs_remove(vport->vport_debugfs_root); /* vportX */ | |
4417 | vport->vport_debugfs_root = NULL; | |
4418 | atomic_dec(&phba->debugfs_vport_count); | |
4419 | } | |
4420 | if (atomic_read(&phba->debugfs_vport_count) == 0) { | |
a58cbd52 | 4421 | |
78b2d852 JS |
4422 | if (phba->debug_hbqinfo) { |
4423 | debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */ | |
4424 | phba->debug_hbqinfo = NULL; | |
4425 | } | |
c95d6c6c JS |
4426 | if (phba->debug_dumpHBASlim) { |
4427 | debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */ | |
4428 | phba->debug_dumpHBASlim = NULL; | |
4429 | } | |
4430 | if (phba->debug_dumpHostSlim) { | |
4431 | debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ | |
4432 | phba->debug_dumpHostSlim = NULL; | |
a58cbd52 | 4433 | } |
e2a0a9d6 JS |
4434 | if (phba->debug_dumpData) { |
4435 | debugfs_remove(phba->debug_dumpData); /* dumpData */ | |
4436 | phba->debug_dumpData = NULL; | |
4437 | } | |
4438 | ||
4439 | if (phba->debug_dumpDif) { | |
4440 | debugfs_remove(phba->debug_dumpDif); /* dumpDif */ | |
4441 | phba->debug_dumpDif = NULL; | |
4442 | } | |
f9bb2da1 JS |
4443 | if (phba->debug_InjErrLBA) { |
4444 | debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */ | |
4445 | phba->debug_InjErrLBA = NULL; | |
4446 | } | |
4ac9b226 JS |
4447 | if (phba->debug_InjErrNPortID) { /* InjErrNPortID */ |
4448 | debugfs_remove(phba->debug_InjErrNPortID); | |
4449 | phba->debug_InjErrNPortID = NULL; | |
4450 | } | |
4451 | if (phba->debug_InjErrWWPN) { | |
4452 | debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */ | |
4453 | phba->debug_InjErrWWPN = NULL; | |
4454 | } | |
f9bb2da1 JS |
4455 | if (phba->debug_writeGuard) { |
4456 | debugfs_remove(phba->debug_writeGuard); /* writeGuard */ | |
4457 | phba->debug_writeGuard = NULL; | |
4458 | } | |
4459 | if (phba->debug_writeApp) { | |
4460 | debugfs_remove(phba->debug_writeApp); /* writeApp */ | |
4461 | phba->debug_writeApp = NULL; | |
4462 | } | |
4463 | if (phba->debug_writeRef) { | |
4464 | debugfs_remove(phba->debug_writeRef); /* writeRef */ | |
4465 | phba->debug_writeRef = NULL; | |
4466 | } | |
acd6859b JS |
4467 | if (phba->debug_readGuard) { |
4468 | debugfs_remove(phba->debug_readGuard); /* readGuard */ | |
4469 | phba->debug_readGuard = NULL; | |
4470 | } | |
f9bb2da1 JS |
4471 | if (phba->debug_readApp) { |
4472 | debugfs_remove(phba->debug_readApp); /* readApp */ | |
4473 | phba->debug_readApp = NULL; | |
4474 | } | |
4475 | if (phba->debug_readRef) { | |
4476 | debugfs_remove(phba->debug_readRef); /* readRef */ | |
4477 | phba->debug_readRef = NULL; | |
4478 | } | |
e2a0a9d6 | 4479 | |
a58cbd52 JS |
4480 | if (phba->slow_ring_trc) { |
4481 | kfree(phba->slow_ring_trc); | |
4482 | phba->slow_ring_trc = NULL; | |
4483 | } | |
4484 | if (phba->debug_slow_ring_trc) { | |
4485 | /* slow_ring_trace */ | |
4486 | debugfs_remove(phba->debug_slow_ring_trc); | |
4487 | phba->debug_slow_ring_trc = NULL; | |
4488 | } | |
4489 | ||
2a622bfb JS |
4490 | /* |
4491 | * iDiag release | |
4492 | */ | |
4493 | if (phba->sli_rev == LPFC_SLI_REV4) { | |
b76f2dc9 JS |
4494 | if (phba->idiag_ext_acc) { |
4495 | /* iDiag extAcc */ | |
4496 | debugfs_remove(phba->idiag_ext_acc); | |
4497 | phba->idiag_ext_acc = NULL; | |
4498 | } | |
4499 | if (phba->idiag_mbx_acc) { | |
4500 | /* iDiag mbxAcc */ | |
4501 | debugfs_remove(phba->idiag_mbx_acc); | |
4502 | phba->idiag_mbx_acc = NULL; | |
4503 | } | |
4504 | if (phba->idiag_ctl_acc) { | |
4505 | /* iDiag ctlAcc */ | |
4506 | debugfs_remove(phba->idiag_ctl_acc); | |
4507 | phba->idiag_ctl_acc = NULL; | |
4508 | } | |
86a80846 JS |
4509 | if (phba->idiag_drb_acc) { |
4510 | /* iDiag drbAcc */ | |
4511 | debugfs_remove(phba->idiag_drb_acc); | |
4512 | phba->idiag_drb_acc = NULL; | |
4513 | } | |
4514 | if (phba->idiag_que_acc) { | |
4515 | /* iDiag queAcc */ | |
4516 | debugfs_remove(phba->idiag_que_acc); | |
4517 | phba->idiag_que_acc = NULL; | |
4518 | } | |
2a622bfb JS |
4519 | if (phba->idiag_que_info) { |
4520 | /* iDiag queInfo */ | |
4521 | debugfs_remove(phba->idiag_que_info); | |
4522 | phba->idiag_que_info = NULL; | |
4523 | } | |
b76f2dc9 JS |
4524 | if (phba->idiag_bar_acc) { |
4525 | /* iDiag barAcc */ | |
4526 | debugfs_remove(phba->idiag_bar_acc); | |
4527 | phba->idiag_bar_acc = NULL; | |
4528 | } | |
2a622bfb JS |
4529 | if (phba->idiag_pci_cfg) { |
4530 | /* iDiag pciCfg */ | |
4531 | debugfs_remove(phba->idiag_pci_cfg); | |
4532 | phba->idiag_pci_cfg = NULL; | |
4533 | } | |
4534 | ||
4535 | /* Finally remove the iDiag debugfs root */ | |
4536 | if (phba->idiag_root) { | |
4537 | /* iDiag root */ | |
4538 | debugfs_remove(phba->idiag_root); | |
4539 | phba->idiag_root = NULL; | |
4540 | } | |
4541 | } | |
4542 | ||
a58cbd52 | 4543 | if (phba->hba_debugfs_root) { |
2a622bfb | 4544 | debugfs_remove(phba->hba_debugfs_root); /* fnX */ |
a58cbd52 JS |
4545 | phba->hba_debugfs_root = NULL; |
4546 | atomic_dec(&lpfc_debugfs_hba_count); | |
4547 | } | |
4548 | ||
858c9f6c JS |
4549 | if (atomic_read(&lpfc_debugfs_hba_count) == 0) { |
4550 | debugfs_remove(lpfc_debugfs_root); /* lpfc */ | |
4551 | lpfc_debugfs_root = NULL; | |
4552 | } | |
4553 | } | |
4554 | #endif | |
a58cbd52 | 4555 | return; |
858c9f6c | 4556 | } |
809c7536 JS |
4557 | |
4558 | /* | |
4559 | * Driver debug utility routines outside of debugfs. The debug utility | |
4560 | * routines implemented here is intended to be used in the instrumented | |
4561 | * debug driver for debugging host or port issues. | |
4562 | */ | |
4563 | ||
4564 | /** | |
4565 | * lpfc_debug_dump_all_queues - dump all the queues with a hba | |
4566 | * @phba: Pointer to HBA context object. | |
4567 | * | |
4568 | * This function dumps entries of all the queues asociated with the @phba. | |
4569 | **/ | |
4570 | void | |
4571 | lpfc_debug_dump_all_queues(struct lpfc_hba *phba) | |
4572 | { | |
4573 | int fcp_wqidx; | |
4574 | ||
4575 | /* | |
4576 | * Dump Work Queues (WQs) | |
4577 | */ | |
4578 | lpfc_debug_dump_mbx_wq(phba); | |
4579 | lpfc_debug_dump_els_wq(phba); | |
4580 | ||
67d12733 | 4581 | for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) |
809c7536 JS |
4582 | lpfc_debug_dump_fcp_wq(phba, fcp_wqidx); |
4583 | ||
4584 | lpfc_debug_dump_hdr_rq(phba); | |
4585 | lpfc_debug_dump_dat_rq(phba); | |
4586 | /* | |
4587 | * Dump Complete Queues (CQs) | |
4588 | */ | |
4589 | lpfc_debug_dump_mbx_cq(phba); | |
4590 | lpfc_debug_dump_els_cq(phba); | |
4591 | ||
67d12733 | 4592 | for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) |
809c7536 JS |
4593 | lpfc_debug_dump_fcp_cq(phba, fcp_wqidx); |
4594 | ||
4595 | /* | |
4596 | * Dump Event Queues (EQs) | |
4597 | */ | |
67d12733 JS |
4598 | for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) |
4599 | lpfc_debug_dump_hba_eq(phba, fcp_wqidx); | |
809c7536 | 4600 | } |