Commit | Line | Data |
---|---|---|
7afc5dbd | 1 | /* |
2732ba56 | 2 | * Linux network driver for QLogic BR-series Converged Network Adapter. |
7afc5dbd KG |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License (GPL) Version 2 as | |
6 | * published by the Free Software Foundation | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | */ | |
13 | /* | |
2732ba56 RM |
14 | * Copyright (c) 2005-2014 Brocade Communications Systems, Inc. |
15 | * Copyright (c) 2014-2015 QLogic Corporation | |
7afc5dbd | 16 | * All rights reserved |
2732ba56 | 17 | * www.qlogic.com |
7afc5dbd KG |
18 | */ |
19 | ||
20 | #include <linux/debugfs.h> | |
21 | #include <linux/module.h> | |
22 | #include "bnad.h" | |
23 | ||
24 | /* | |
25 | * BNA debufs interface | |
26 | * | |
27 | * To access the interface, debugfs file system should be mounted | |
28 | * if not already mounted using: | |
29 | * mount -t debugfs none /sys/kernel/debug | |
30 | * | |
31 | * BNA Hierarchy: | |
32 | * - bna/pci_dev:<pci_name> | |
33 | * where the pci_name corresponds to the one under /sys/bus/pci/drivers/bna | |
34 | * | |
35 | * Debugging service available per pci_dev: | |
36 | * fwtrc: To collect current firmware trace. | |
37 | * fwsave: To collect last saved fw trace as a result of firmware crash. | |
38 | * regwr: To write one word to chip register | |
39 | * regrd: To read one or more words from chip register. | |
40 | */ | |
41 | ||
42 | struct bnad_debug_info { | |
43 | char *debug_buffer; | |
44 | void *i_private; | |
45 | int buffer_len; | |
46 | }; | |
47 | ||
48 | static int | |
49 | bnad_debugfs_open_fwtrc(struct inode *inode, struct file *file) | |
50 | { | |
51 | struct bnad *bnad = inode->i_private; | |
52 | struct bnad_debug_info *fw_debug; | |
53 | unsigned long flags; | |
54 | int rc; | |
55 | ||
56 | fw_debug = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
57 | if (!fw_debug) | |
58 | return -ENOMEM; | |
59 | ||
60 | fw_debug->buffer_len = BNA_DBG_FWTRC_LEN; | |
61 | ||
62 | fw_debug->debug_buffer = kzalloc(fw_debug->buffer_len, GFP_KERNEL); | |
63 | if (!fw_debug->debug_buffer) { | |
64 | kfree(fw_debug); | |
65 | fw_debug = NULL; | |
7afc5dbd KG |
66 | return -ENOMEM; |
67 | } | |
68 | ||
69 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
70 | rc = bfa_nw_ioc_debug_fwtrc(&bnad->bna.ioceth.ioc, | |
71 | fw_debug->debug_buffer, | |
72 | &fw_debug->buffer_len); | |
73 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
74 | if (rc != BFA_STATUS_OK) { | |
75 | kfree(fw_debug->debug_buffer); | |
76 | fw_debug->debug_buffer = NULL; | |
77 | kfree(fw_debug); | |
78 | fw_debug = NULL; | |
79 | pr_warn("bnad %s: Failed to collect fwtrc\n", | |
80 | pci_name(bnad->pcidev)); | |
81 | return -ENOMEM; | |
82 | } | |
83 | ||
84 | file->private_data = fw_debug; | |
85 | ||
86 | return 0; | |
87 | } | |
88 | ||
89 | static int | |
90 | bnad_debugfs_open_fwsave(struct inode *inode, struct file *file) | |
91 | { | |
92 | struct bnad *bnad = inode->i_private; | |
93 | struct bnad_debug_info *fw_debug; | |
94 | unsigned long flags; | |
95 | int rc; | |
96 | ||
97 | fw_debug = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
98 | if (!fw_debug) | |
99 | return -ENOMEM; | |
100 | ||
101 | fw_debug->buffer_len = BNA_DBG_FWTRC_LEN; | |
102 | ||
103 | fw_debug->debug_buffer = kzalloc(fw_debug->buffer_len, GFP_KERNEL); | |
104 | if (!fw_debug->debug_buffer) { | |
105 | kfree(fw_debug); | |
106 | fw_debug = NULL; | |
7afc5dbd KG |
107 | return -ENOMEM; |
108 | } | |
109 | ||
110 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
111 | rc = bfa_nw_ioc_debug_fwsave(&bnad->bna.ioceth.ioc, | |
112 | fw_debug->debug_buffer, | |
113 | &fw_debug->buffer_len); | |
114 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
115 | if (rc != BFA_STATUS_OK && rc != BFA_STATUS_ENOFSAVE) { | |
116 | kfree(fw_debug->debug_buffer); | |
117 | fw_debug->debug_buffer = NULL; | |
118 | kfree(fw_debug); | |
119 | fw_debug = NULL; | |
120 | pr_warn("bna %s: Failed to collect fwsave\n", | |
121 | pci_name(bnad->pcidev)); | |
122 | return -ENOMEM; | |
123 | } | |
124 | ||
125 | file->private_data = fw_debug; | |
126 | ||
127 | return 0; | |
128 | } | |
129 | ||
130 | static int | |
131 | bnad_debugfs_open_reg(struct inode *inode, struct file *file) | |
132 | { | |
133 | struct bnad_debug_info *reg_debug; | |
134 | ||
135 | reg_debug = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
136 | if (!reg_debug) | |
137 | return -ENOMEM; | |
138 | ||
139 | reg_debug->i_private = inode->i_private; | |
140 | ||
141 | file->private_data = reg_debug; | |
142 | ||
143 | return 0; | |
144 | } | |
145 | ||
146 | static int | |
147 | bnad_get_debug_drvinfo(struct bnad *bnad, void *buffer, u32 len) | |
148 | { | |
149 | struct bnad_drvinfo *drvinfo = (struct bnad_drvinfo *) buffer; | |
150 | struct bnad_iocmd_comp fcomp; | |
151 | unsigned long flags = 0; | |
152 | int ret = BFA_STATUS_FAILED; | |
153 | ||
154 | /* Get IOC info */ | |
155 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
156 | bfa_nw_ioc_get_attr(&bnad->bna.ioceth.ioc, &drvinfo->ioc_attr); | |
157 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
158 | ||
159 | /* Retrieve CEE related info */ | |
160 | fcomp.bnad = bnad; | |
161 | fcomp.comp_status = 0; | |
162 | init_completion(&fcomp.comp); | |
163 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
164 | ret = bfa_nw_cee_get_attr(&bnad->bna.cee, &drvinfo->cee_attr, | |
165 | bnad_cb_completion, &fcomp); | |
166 | if (ret != BFA_STATUS_OK) { | |
167 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
168 | goto out; | |
169 | } | |
170 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
171 | wait_for_completion(&fcomp.comp); | |
172 | drvinfo->cee_status = fcomp.comp_status; | |
173 | ||
174 | /* Retrieve flash partition info */ | |
175 | fcomp.comp_status = 0; | |
6e4ab361 | 176 | reinit_completion(&fcomp.comp); |
7afc5dbd KG |
177 | spin_lock_irqsave(&bnad->bna_lock, flags); |
178 | ret = bfa_nw_flash_get_attr(&bnad->bna.flash, &drvinfo->flash_attr, | |
179 | bnad_cb_completion, &fcomp); | |
180 | if (ret != BFA_STATUS_OK) { | |
181 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
182 | goto out; | |
183 | } | |
184 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
185 | wait_for_completion(&fcomp.comp); | |
186 | drvinfo->flash_status = fcomp.comp_status; | |
187 | out: | |
188 | return ret; | |
189 | } | |
190 | ||
191 | static int | |
192 | bnad_debugfs_open_drvinfo(struct inode *inode, struct file *file) | |
193 | { | |
194 | struct bnad *bnad = inode->i_private; | |
195 | struct bnad_debug_info *drv_info; | |
196 | int rc; | |
197 | ||
198 | drv_info = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
199 | if (!drv_info) | |
200 | return -ENOMEM; | |
201 | ||
202 | drv_info->buffer_len = sizeof(struct bnad_drvinfo); | |
203 | ||
204 | drv_info->debug_buffer = kzalloc(drv_info->buffer_len, GFP_KERNEL); | |
205 | if (!drv_info->debug_buffer) { | |
206 | kfree(drv_info); | |
207 | drv_info = NULL; | |
7afc5dbd KG |
208 | return -ENOMEM; |
209 | } | |
210 | ||
211 | mutex_lock(&bnad->conf_mutex); | |
212 | rc = bnad_get_debug_drvinfo(bnad, drv_info->debug_buffer, | |
213 | drv_info->buffer_len); | |
214 | mutex_unlock(&bnad->conf_mutex); | |
215 | if (rc != BFA_STATUS_OK) { | |
216 | kfree(drv_info->debug_buffer); | |
217 | drv_info->debug_buffer = NULL; | |
218 | kfree(drv_info); | |
219 | drv_info = NULL; | |
220 | pr_warn("bna %s: Failed to collect drvinfo\n", | |
221 | pci_name(bnad->pcidev)); | |
222 | return -ENOMEM; | |
223 | } | |
224 | ||
225 | file->private_data = drv_info; | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
230 | /* Changes the current file position */ | |
231 | static loff_t | |
232 | bnad_debugfs_lseek(struct file *file, loff_t offset, int orig) | |
233 | { | |
7afc5dbd KG |
234 | struct bnad_debug_info *debug = file->private_data; |
235 | ||
236 | if (!debug) | |
237 | return -EINVAL; | |
238 | ||
c0caa07b | 239 | return fixed_size_llseek(file, offset, orig, debug->buffer_len); |
7afc5dbd KG |
240 | } |
241 | ||
242 | static ssize_t | |
243 | bnad_debugfs_read(struct file *file, char __user *buf, | |
244 | size_t nbytes, loff_t *pos) | |
245 | { | |
246 | struct bnad_debug_info *debug = file->private_data; | |
247 | ||
248 | if (!debug || !debug->debug_buffer) | |
249 | return 0; | |
250 | ||
251 | return simple_read_from_buffer(buf, nbytes, pos, | |
252 | debug->debug_buffer, debug->buffer_len); | |
253 | } | |
254 | ||
255 | #define BFA_REG_CT_ADDRSZ (0x40000) | |
256 | #define BFA_REG_CB_ADDRSZ (0x20000) | |
257 | #define BFA_REG_ADDRSZ(__ioc) \ | |
258 | ((u32)(bfa_asic_id_ctc(bfa_ioc_devid(__ioc)) ? \ | |
259 | BFA_REG_CT_ADDRSZ : BFA_REG_CB_ADDRSZ)) | |
260 | #define BFA_REG_ADDRMSK(__ioc) (BFA_REG_ADDRSZ(__ioc) - 1) | |
261 | ||
262 | /* | |
263 | * Function to check if the register offset passed is valid. | |
264 | */ | |
265 | static int | |
266 | bna_reg_offset_check(struct bfa_ioc *ioc, u32 offset, u32 len) | |
267 | { | |
268 | u8 area; | |
269 | ||
270 | /* check [16:15] */ | |
271 | area = (offset >> 15) & 0x7; | |
272 | if (area == 0) { | |
273 | /* PCIe core register */ | |
274 | if ((offset + (len<<2)) > 0x8000) /* 8k dwords or 32KB */ | |
275 | return BFA_STATUS_EINVAL; | |
276 | } else if (area == 0x1) { | |
277 | /* CB 32 KB memory page */ | |
278 | if ((offset + (len<<2)) > 0x10000) /* 8k dwords or 32KB */ | |
279 | return BFA_STATUS_EINVAL; | |
280 | } else { | |
281 | /* CB register space 64KB */ | |
282 | if ((offset + (len<<2)) > BFA_REG_ADDRMSK(ioc)) | |
283 | return BFA_STATUS_EINVAL; | |
284 | } | |
285 | return BFA_STATUS_OK; | |
286 | } | |
287 | ||
288 | static ssize_t | |
289 | bnad_debugfs_read_regrd(struct file *file, char __user *buf, | |
290 | size_t nbytes, loff_t *pos) | |
291 | { | |
292 | struct bnad_debug_info *regrd_debug = file->private_data; | |
293 | struct bnad *bnad = (struct bnad *)regrd_debug->i_private; | |
294 | ssize_t rc; | |
295 | ||
296 | if (!bnad->regdata) | |
297 | return 0; | |
298 | ||
299 | rc = simple_read_from_buffer(buf, nbytes, pos, | |
300 | bnad->regdata, bnad->reglen); | |
301 | ||
302 | if ((*pos + nbytes) >= bnad->reglen) { | |
303 | kfree(bnad->regdata); | |
304 | bnad->regdata = NULL; | |
305 | bnad->reglen = 0; | |
306 | } | |
307 | ||
308 | return rc; | |
309 | } | |
310 | ||
311 | static ssize_t | |
312 | bnad_debugfs_write_regrd(struct file *file, const char __user *buf, | |
313 | size_t nbytes, loff_t *ppos) | |
314 | { | |
315 | struct bnad_debug_info *regrd_debug = file->private_data; | |
316 | struct bnad *bnad = (struct bnad *)regrd_debug->i_private; | |
317 | struct bfa_ioc *ioc = &bnad->bna.ioceth.ioc; | |
318 | int addr, len, rc, i; | |
319 | u32 *regbuf; | |
320 | void __iomem *rb, *reg_addr; | |
321 | unsigned long flags; | |
322 | void *kern_buf; | |
323 | ||
d0e6a806 IV |
324 | /* Copy the user space buf */ |
325 | kern_buf = memdup_user(buf, nbytes); | |
326 | if (IS_ERR(kern_buf)) | |
327 | return PTR_ERR(kern_buf); | |
7afc5dbd KG |
328 | |
329 | rc = sscanf(kern_buf, "%x:%x", &addr, &len); | |
330 | if (rc < 2) { | |
331 | pr_warn("bna %s: Failed to read user buffer\n", | |
332 | pci_name(bnad->pcidev)); | |
333 | kfree(kern_buf); | |
334 | return -EINVAL; | |
335 | } | |
336 | ||
337 | kfree(kern_buf); | |
338 | kfree(bnad->regdata); | |
7afc5dbd KG |
339 | bnad->reglen = 0; |
340 | ||
341 | bnad->regdata = kzalloc(len << 2, GFP_KERNEL); | |
e404decb | 342 | if (!bnad->regdata) |
7afc5dbd | 343 | return -ENOMEM; |
7afc5dbd KG |
344 | |
345 | bnad->reglen = len << 2; | |
346 | rb = bfa_ioc_bar0(ioc); | |
347 | addr &= BFA_REG_ADDRMSK(ioc); | |
348 | ||
349 | /* offset and len sanity check */ | |
350 | rc = bna_reg_offset_check(ioc, addr, len); | |
351 | if (rc) { | |
352 | pr_warn("bna %s: Failed reg offset check\n", | |
353 | pci_name(bnad->pcidev)); | |
354 | kfree(bnad->regdata); | |
355 | bnad->regdata = NULL; | |
356 | bnad->reglen = 0; | |
357 | return -EINVAL; | |
358 | } | |
359 | ||
360 | reg_addr = rb + addr; | |
361 | regbuf = (u32 *)bnad->regdata; | |
362 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
363 | for (i = 0; i < len; i++) { | |
364 | *regbuf = readl(reg_addr); | |
365 | regbuf++; | |
366 | reg_addr += sizeof(u32); | |
367 | } | |
368 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
369 | ||
370 | return nbytes; | |
371 | } | |
372 | ||
373 | static ssize_t | |
374 | bnad_debugfs_write_regwr(struct file *file, const char __user *buf, | |
375 | size_t nbytes, loff_t *ppos) | |
376 | { | |
377 | struct bnad_debug_info *debug = file->private_data; | |
378 | struct bnad *bnad = (struct bnad *)debug->i_private; | |
379 | struct bfa_ioc *ioc = &bnad->bna.ioceth.ioc; | |
380 | int addr, val, rc; | |
381 | void __iomem *reg_addr; | |
382 | unsigned long flags; | |
383 | void *kern_buf; | |
384 | ||
d0e6a806 IV |
385 | /* Copy the user space buf */ |
386 | kern_buf = memdup_user(buf, nbytes); | |
387 | if (IS_ERR(kern_buf)) | |
388 | return PTR_ERR(kern_buf); | |
7afc5dbd KG |
389 | |
390 | rc = sscanf(kern_buf, "%x:%x", &addr, &val); | |
391 | if (rc < 2) { | |
392 | pr_warn("bna %s: Failed to read user buffer\n", | |
393 | pci_name(bnad->pcidev)); | |
394 | kfree(kern_buf); | |
395 | return -EINVAL; | |
396 | } | |
397 | kfree(kern_buf); | |
398 | ||
399 | addr &= BFA_REG_ADDRMSK(ioc); /* offset only 17 bit and word align */ | |
400 | ||
401 | /* offset and len sanity check */ | |
402 | rc = bna_reg_offset_check(ioc, addr, 1); | |
403 | if (rc) { | |
404 | pr_warn("bna %s: Failed reg offset check\n", | |
405 | pci_name(bnad->pcidev)); | |
406 | return -EINVAL; | |
407 | } | |
408 | ||
409 | reg_addr = (bfa_ioc_bar0(ioc)) + addr; | |
410 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
411 | writel(val, reg_addr); | |
412 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
413 | ||
414 | return nbytes; | |
415 | } | |
416 | ||
417 | static int | |
418 | bnad_debugfs_release(struct inode *inode, struct file *file) | |
419 | { | |
420 | struct bnad_debug_info *debug = file->private_data; | |
421 | ||
422 | if (!debug) | |
423 | return 0; | |
424 | ||
425 | file->private_data = NULL; | |
426 | kfree(debug); | |
427 | return 0; | |
428 | } | |
429 | ||
430 | static int | |
431 | bnad_debugfs_buffer_release(struct inode *inode, struct file *file) | |
432 | { | |
433 | struct bnad_debug_info *debug = file->private_data; | |
434 | ||
435 | if (!debug) | |
436 | return 0; | |
437 | ||
438 | kfree(debug->debug_buffer); | |
439 | ||
440 | file->private_data = NULL; | |
441 | kfree(debug); | |
442 | debug = NULL; | |
443 | return 0; | |
444 | } | |
445 | ||
446 | static const struct file_operations bnad_debugfs_op_fwtrc = { | |
447 | .owner = THIS_MODULE, | |
448 | .open = bnad_debugfs_open_fwtrc, | |
449 | .llseek = bnad_debugfs_lseek, | |
450 | .read = bnad_debugfs_read, | |
451 | .release = bnad_debugfs_buffer_release, | |
452 | }; | |
453 | ||
454 | static const struct file_operations bnad_debugfs_op_fwsave = { | |
455 | .owner = THIS_MODULE, | |
456 | .open = bnad_debugfs_open_fwsave, | |
457 | .llseek = bnad_debugfs_lseek, | |
458 | .read = bnad_debugfs_read, | |
459 | .release = bnad_debugfs_buffer_release, | |
460 | }; | |
461 | ||
462 | static const struct file_operations bnad_debugfs_op_regrd = { | |
463 | .owner = THIS_MODULE, | |
464 | .open = bnad_debugfs_open_reg, | |
465 | .llseek = bnad_debugfs_lseek, | |
466 | .read = bnad_debugfs_read_regrd, | |
467 | .write = bnad_debugfs_write_regrd, | |
468 | .release = bnad_debugfs_release, | |
469 | }; | |
470 | ||
471 | static const struct file_operations bnad_debugfs_op_regwr = { | |
472 | .owner = THIS_MODULE, | |
473 | .open = bnad_debugfs_open_reg, | |
474 | .llseek = bnad_debugfs_lseek, | |
475 | .write = bnad_debugfs_write_regwr, | |
476 | .release = bnad_debugfs_release, | |
477 | }; | |
478 | ||
479 | static const struct file_operations bnad_debugfs_op_drvinfo = { | |
480 | .owner = THIS_MODULE, | |
481 | .open = bnad_debugfs_open_drvinfo, | |
482 | .llseek = bnad_debugfs_lseek, | |
483 | .read = bnad_debugfs_read, | |
484 | .release = bnad_debugfs_buffer_release, | |
485 | }; | |
486 | ||
487 | struct bnad_debugfs_entry { | |
488 | const char *name; | |
88187398 | 489 | umode_t mode; |
7afc5dbd KG |
490 | const struct file_operations *fops; |
491 | }; | |
492 | ||
493 | static const struct bnad_debugfs_entry bnad_debugfs_files[] = { | |
494 | { "fwtrc", S_IFREG|S_IRUGO, &bnad_debugfs_op_fwtrc, }, | |
495 | { "fwsave", S_IFREG|S_IRUGO, &bnad_debugfs_op_fwsave, }, | |
496 | { "regrd", S_IFREG|S_IRUGO|S_IWUSR, &bnad_debugfs_op_regrd, }, | |
497 | { "regwr", S_IFREG|S_IWUSR, &bnad_debugfs_op_regwr, }, | |
498 | { "drvinfo", S_IFREG|S_IRUGO, &bnad_debugfs_op_drvinfo, }, | |
499 | }; | |
500 | ||
501 | static struct dentry *bna_debugfs_root; | |
502 | static atomic_t bna_debugfs_port_count; | |
503 | ||
504 | /* Initialize debugfs interface for BNA */ | |
505 | void | |
506 | bnad_debugfs_init(struct bnad *bnad) | |
507 | { | |
508 | const struct bnad_debugfs_entry *file; | |
509 | char name[64]; | |
510 | int i; | |
511 | ||
512 | /* Setup the BNA debugfs root directory*/ | |
513 | if (!bna_debugfs_root) { | |
514 | bna_debugfs_root = debugfs_create_dir("bna", NULL); | |
515 | atomic_set(&bna_debugfs_port_count, 0); | |
516 | if (!bna_debugfs_root) { | |
517 | pr_warn("BNA: debugfs root dir creation failed\n"); | |
518 | return; | |
519 | } | |
520 | } | |
521 | ||
522 | /* Setup the pci_dev debugfs directory for the port */ | |
523 | snprintf(name, sizeof(name), "pci_dev:%s", pci_name(bnad->pcidev)); | |
524 | if (!bnad->port_debugfs_root) { | |
525 | bnad->port_debugfs_root = | |
526 | debugfs_create_dir(name, bna_debugfs_root); | |
527 | if (!bnad->port_debugfs_root) { | |
528 | pr_warn("bna pci_dev %s: root dir creation failed\n", | |
529 | pci_name(bnad->pcidev)); | |
530 | return; | |
531 | } | |
532 | ||
533 | atomic_inc(&bna_debugfs_port_count); | |
534 | ||
535 | for (i = 0; i < ARRAY_SIZE(bnad_debugfs_files); i++) { | |
536 | file = &bnad_debugfs_files[i]; | |
537 | bnad->bnad_dentry_files[i] = | |
538 | debugfs_create_file(file->name, | |
539 | file->mode, | |
540 | bnad->port_debugfs_root, | |
541 | bnad, | |
542 | file->fops); | |
543 | if (!bnad->bnad_dentry_files[i]) { | |
544 | pr_warn( | |
545 | "BNA pci_dev:%s: create %s entry failed\n", | |
546 | pci_name(bnad->pcidev), file->name); | |
547 | return; | |
548 | } | |
549 | } | |
550 | } | |
551 | } | |
552 | ||
553 | /* Uninitialize debugfs interface for BNA */ | |
554 | void | |
555 | bnad_debugfs_uninit(struct bnad *bnad) | |
556 | { | |
557 | int i; | |
558 | ||
559 | for (i = 0; i < ARRAY_SIZE(bnad_debugfs_files); i++) { | |
560 | if (bnad->bnad_dentry_files[i]) { | |
561 | debugfs_remove(bnad->bnad_dentry_files[i]); | |
562 | bnad->bnad_dentry_files[i] = NULL; | |
563 | } | |
564 | } | |
565 | ||
566 | /* Remove the pci_dev debugfs directory for the port */ | |
567 | if (bnad->port_debugfs_root) { | |
568 | debugfs_remove(bnad->port_debugfs_root); | |
569 | bnad->port_debugfs_root = NULL; | |
570 | atomic_dec(&bna_debugfs_port_count); | |
571 | } | |
572 | ||
573 | /* Remove the BNA debugfs root directory */ | |
574 | if (atomic_read(&bna_debugfs_port_count) == 0) { | |
575 | debugfs_remove(bna_debugfs_root); | |
576 | bna_debugfs_root = NULL; | |
577 | } | |
578 | } |