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Commit | Line | Data |
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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; | |
ecc46789 | 79 | netdev_warn(bnad->netdev, "failed to collect fwtrc\n"); |
7afc5dbd KG |
80 | return -ENOMEM; |
81 | } | |
82 | ||
83 | file->private_data = fw_debug; | |
84 | ||
85 | return 0; | |
86 | } | |
87 | ||
88 | static int | |
89 | bnad_debugfs_open_fwsave(struct inode *inode, struct file *file) | |
90 | { | |
91 | struct bnad *bnad = inode->i_private; | |
92 | struct bnad_debug_info *fw_debug; | |
93 | unsigned long flags; | |
94 | int rc; | |
95 | ||
96 | fw_debug = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
97 | if (!fw_debug) | |
98 | return -ENOMEM; | |
99 | ||
100 | fw_debug->buffer_len = BNA_DBG_FWTRC_LEN; | |
101 | ||
102 | fw_debug->debug_buffer = kzalloc(fw_debug->buffer_len, GFP_KERNEL); | |
103 | if (!fw_debug->debug_buffer) { | |
104 | kfree(fw_debug); | |
105 | fw_debug = NULL; | |
7afc5dbd KG |
106 | return -ENOMEM; |
107 | } | |
108 | ||
109 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
110 | rc = bfa_nw_ioc_debug_fwsave(&bnad->bna.ioceth.ioc, | |
111 | fw_debug->debug_buffer, | |
112 | &fw_debug->buffer_len); | |
113 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
114 | if (rc != BFA_STATUS_OK && rc != BFA_STATUS_ENOFSAVE) { | |
115 | kfree(fw_debug->debug_buffer); | |
116 | fw_debug->debug_buffer = NULL; | |
117 | kfree(fw_debug); | |
118 | fw_debug = NULL; | |
ecc46789 | 119 | netdev_warn(bnad->netdev, "failed to collect fwsave\n"); |
7afc5dbd KG |
120 | return -ENOMEM; |
121 | } | |
122 | ||
123 | file->private_data = fw_debug; | |
124 | ||
125 | return 0; | |
126 | } | |
127 | ||
128 | static int | |
129 | bnad_debugfs_open_reg(struct inode *inode, struct file *file) | |
130 | { | |
131 | struct bnad_debug_info *reg_debug; | |
132 | ||
133 | reg_debug = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
134 | if (!reg_debug) | |
135 | return -ENOMEM; | |
136 | ||
137 | reg_debug->i_private = inode->i_private; | |
138 | ||
139 | file->private_data = reg_debug; | |
140 | ||
141 | return 0; | |
142 | } | |
143 | ||
144 | static int | |
145 | bnad_get_debug_drvinfo(struct bnad *bnad, void *buffer, u32 len) | |
146 | { | |
147 | struct bnad_drvinfo *drvinfo = (struct bnad_drvinfo *) buffer; | |
148 | struct bnad_iocmd_comp fcomp; | |
149 | unsigned long flags = 0; | |
150 | int ret = BFA_STATUS_FAILED; | |
151 | ||
152 | /* Get IOC info */ | |
153 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
154 | bfa_nw_ioc_get_attr(&bnad->bna.ioceth.ioc, &drvinfo->ioc_attr); | |
155 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
156 | ||
157 | /* Retrieve CEE related info */ | |
158 | fcomp.bnad = bnad; | |
159 | fcomp.comp_status = 0; | |
160 | init_completion(&fcomp.comp); | |
161 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
162 | ret = bfa_nw_cee_get_attr(&bnad->bna.cee, &drvinfo->cee_attr, | |
163 | bnad_cb_completion, &fcomp); | |
164 | if (ret != BFA_STATUS_OK) { | |
165 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
166 | goto out; | |
167 | } | |
168 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
169 | wait_for_completion(&fcomp.comp); | |
170 | drvinfo->cee_status = fcomp.comp_status; | |
171 | ||
172 | /* Retrieve flash partition info */ | |
173 | fcomp.comp_status = 0; | |
6e4ab361 | 174 | reinit_completion(&fcomp.comp); |
7afc5dbd KG |
175 | spin_lock_irqsave(&bnad->bna_lock, flags); |
176 | ret = bfa_nw_flash_get_attr(&bnad->bna.flash, &drvinfo->flash_attr, | |
177 | bnad_cb_completion, &fcomp); | |
178 | if (ret != BFA_STATUS_OK) { | |
179 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
180 | goto out; | |
181 | } | |
182 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
183 | wait_for_completion(&fcomp.comp); | |
184 | drvinfo->flash_status = fcomp.comp_status; | |
185 | out: | |
186 | return ret; | |
187 | } | |
188 | ||
189 | static int | |
190 | bnad_debugfs_open_drvinfo(struct inode *inode, struct file *file) | |
191 | { | |
192 | struct bnad *bnad = inode->i_private; | |
193 | struct bnad_debug_info *drv_info; | |
194 | int rc; | |
195 | ||
196 | drv_info = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
197 | if (!drv_info) | |
198 | return -ENOMEM; | |
199 | ||
200 | drv_info->buffer_len = sizeof(struct bnad_drvinfo); | |
201 | ||
202 | drv_info->debug_buffer = kzalloc(drv_info->buffer_len, GFP_KERNEL); | |
203 | if (!drv_info->debug_buffer) { | |
204 | kfree(drv_info); | |
205 | drv_info = NULL; | |
7afc5dbd KG |
206 | return -ENOMEM; |
207 | } | |
208 | ||
209 | mutex_lock(&bnad->conf_mutex); | |
210 | rc = bnad_get_debug_drvinfo(bnad, drv_info->debug_buffer, | |
211 | drv_info->buffer_len); | |
212 | mutex_unlock(&bnad->conf_mutex); | |
213 | if (rc != BFA_STATUS_OK) { | |
214 | kfree(drv_info->debug_buffer); | |
215 | drv_info->debug_buffer = NULL; | |
216 | kfree(drv_info); | |
217 | drv_info = NULL; | |
ecc46789 | 218 | netdev_warn(bnad->netdev, "failed to collect drvinfo\n"); |
7afc5dbd KG |
219 | return -ENOMEM; |
220 | } | |
221 | ||
222 | file->private_data = drv_info; | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
227 | /* Changes the current file position */ | |
228 | static loff_t | |
229 | bnad_debugfs_lseek(struct file *file, loff_t offset, int orig) | |
230 | { | |
7afc5dbd KG |
231 | struct bnad_debug_info *debug = file->private_data; |
232 | ||
233 | if (!debug) | |
234 | return -EINVAL; | |
235 | ||
c0caa07b | 236 | return fixed_size_llseek(file, offset, orig, debug->buffer_len); |
7afc5dbd KG |
237 | } |
238 | ||
239 | static ssize_t | |
240 | bnad_debugfs_read(struct file *file, char __user *buf, | |
241 | size_t nbytes, loff_t *pos) | |
242 | { | |
243 | struct bnad_debug_info *debug = file->private_data; | |
244 | ||
245 | if (!debug || !debug->debug_buffer) | |
246 | return 0; | |
247 | ||
248 | return simple_read_from_buffer(buf, nbytes, pos, | |
249 | debug->debug_buffer, debug->buffer_len); | |
250 | } | |
251 | ||
252 | #define BFA_REG_CT_ADDRSZ (0x40000) | |
253 | #define BFA_REG_CB_ADDRSZ (0x20000) | |
254 | #define BFA_REG_ADDRSZ(__ioc) \ | |
255 | ((u32)(bfa_asic_id_ctc(bfa_ioc_devid(__ioc)) ? \ | |
256 | BFA_REG_CT_ADDRSZ : BFA_REG_CB_ADDRSZ)) | |
257 | #define BFA_REG_ADDRMSK(__ioc) (BFA_REG_ADDRSZ(__ioc) - 1) | |
258 | ||
259 | /* | |
260 | * Function to check if the register offset passed is valid. | |
261 | */ | |
262 | static int | |
263 | bna_reg_offset_check(struct bfa_ioc *ioc, u32 offset, u32 len) | |
264 | { | |
265 | u8 area; | |
266 | ||
267 | /* check [16:15] */ | |
268 | area = (offset >> 15) & 0x7; | |
269 | if (area == 0) { | |
270 | /* PCIe core register */ | |
ebb56d37 | 271 | if (offset + (len << 2) > 0x8000) /* 8k dwords or 32KB */ |
7afc5dbd KG |
272 | return BFA_STATUS_EINVAL; |
273 | } else if (area == 0x1) { | |
274 | /* CB 32 KB memory page */ | |
ebb56d37 | 275 | if (offset + (len << 2) > 0x10000) /* 8k dwords or 32KB */ |
7afc5dbd KG |
276 | return BFA_STATUS_EINVAL; |
277 | } else { | |
278 | /* CB register space 64KB */ | |
ebb56d37 | 279 | if (offset + (len << 2) > BFA_REG_ADDRMSK(ioc)) |
7afc5dbd KG |
280 | return BFA_STATUS_EINVAL; |
281 | } | |
282 | return BFA_STATUS_OK; | |
283 | } | |
284 | ||
285 | static ssize_t | |
286 | bnad_debugfs_read_regrd(struct file *file, char __user *buf, | |
287 | size_t nbytes, loff_t *pos) | |
288 | { | |
289 | struct bnad_debug_info *regrd_debug = file->private_data; | |
290 | struct bnad *bnad = (struct bnad *)regrd_debug->i_private; | |
291 | ssize_t rc; | |
292 | ||
293 | if (!bnad->regdata) | |
294 | return 0; | |
295 | ||
296 | rc = simple_read_from_buffer(buf, nbytes, pos, | |
297 | bnad->regdata, bnad->reglen); | |
298 | ||
299 | if ((*pos + nbytes) >= bnad->reglen) { | |
300 | kfree(bnad->regdata); | |
301 | bnad->regdata = NULL; | |
302 | bnad->reglen = 0; | |
303 | } | |
304 | ||
305 | return rc; | |
306 | } | |
307 | ||
308 | static ssize_t | |
309 | bnad_debugfs_write_regrd(struct file *file, const char __user *buf, | |
310 | size_t nbytes, loff_t *ppos) | |
311 | { | |
312 | struct bnad_debug_info *regrd_debug = file->private_data; | |
313 | struct bnad *bnad = (struct bnad *)regrd_debug->i_private; | |
314 | struct bfa_ioc *ioc = &bnad->bna.ioceth.ioc; | |
112b6b79 | 315 | int rc, i; |
316 | u32 addr, len; | |
7afc5dbd KG |
317 | u32 *regbuf; |
318 | void __iomem *rb, *reg_addr; | |
319 | unsigned long flags; | |
320 | void *kern_buf; | |
321 | ||
d0e6a806 IV |
322 | /* Copy the user space buf */ |
323 | kern_buf = memdup_user(buf, nbytes); | |
324 | if (IS_ERR(kern_buf)) | |
325 | return PTR_ERR(kern_buf); | |
7afc5dbd KG |
326 | |
327 | rc = sscanf(kern_buf, "%x:%x", &addr, &len); | |
13e2d518 | 328 | if (rc < 2 || len > UINT_MAX >> 2) { |
ecc46789 | 329 | netdev_warn(bnad->netdev, "failed to read user buffer\n"); |
7afc5dbd KG |
330 | kfree(kern_buf); |
331 | return -EINVAL; | |
332 | } | |
333 | ||
334 | kfree(kern_buf); | |
335 | kfree(bnad->regdata); | |
7afc5dbd KG |
336 | bnad->reglen = 0; |
337 | ||
338 | bnad->regdata = kzalloc(len << 2, GFP_KERNEL); | |
e404decb | 339 | if (!bnad->regdata) |
7afc5dbd | 340 | return -ENOMEM; |
7afc5dbd KG |
341 | |
342 | bnad->reglen = len << 2; | |
343 | rb = bfa_ioc_bar0(ioc); | |
344 | addr &= BFA_REG_ADDRMSK(ioc); | |
345 | ||
346 | /* offset and len sanity check */ | |
347 | rc = bna_reg_offset_check(ioc, addr, len); | |
348 | if (rc) { | |
ecc46789 | 349 | netdev_warn(bnad->netdev, "failed reg offset check\n"); |
7afc5dbd KG |
350 | kfree(bnad->regdata); |
351 | bnad->regdata = NULL; | |
352 | bnad->reglen = 0; | |
353 | return -EINVAL; | |
354 | } | |
355 | ||
356 | reg_addr = rb + addr; | |
357 | regbuf = (u32 *)bnad->regdata; | |
358 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
359 | for (i = 0; i < len; i++) { | |
360 | *regbuf = readl(reg_addr); | |
361 | regbuf++; | |
362 | reg_addr += sizeof(u32); | |
363 | } | |
364 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
365 | ||
366 | return nbytes; | |
367 | } | |
368 | ||
369 | static ssize_t | |
370 | bnad_debugfs_write_regwr(struct file *file, const char __user *buf, | |
371 | size_t nbytes, loff_t *ppos) | |
372 | { | |
373 | struct bnad_debug_info *debug = file->private_data; | |
374 | struct bnad *bnad = (struct bnad *)debug->i_private; | |
375 | struct bfa_ioc *ioc = &bnad->bna.ioceth.ioc; | |
4c2e9e29 | 376 | int rc; |
377 | u32 addr, val; | |
7afc5dbd KG |
378 | void __iomem *reg_addr; |
379 | unsigned long flags; | |
380 | void *kern_buf; | |
381 | ||
d0e6a806 IV |
382 | /* Copy the user space buf */ |
383 | kern_buf = memdup_user(buf, nbytes); | |
384 | if (IS_ERR(kern_buf)) | |
385 | return PTR_ERR(kern_buf); | |
7afc5dbd KG |
386 | |
387 | rc = sscanf(kern_buf, "%x:%x", &addr, &val); | |
388 | if (rc < 2) { | |
ecc46789 | 389 | netdev_warn(bnad->netdev, "failed to read user buffer\n"); |
7afc5dbd KG |
390 | kfree(kern_buf); |
391 | return -EINVAL; | |
392 | } | |
393 | kfree(kern_buf); | |
394 | ||
395 | addr &= BFA_REG_ADDRMSK(ioc); /* offset only 17 bit and word align */ | |
396 | ||
397 | /* offset and len sanity check */ | |
398 | rc = bna_reg_offset_check(ioc, addr, 1); | |
399 | if (rc) { | |
ecc46789 | 400 | netdev_warn(bnad->netdev, "failed reg offset check\n"); |
7afc5dbd KG |
401 | return -EINVAL; |
402 | } | |
403 | ||
404 | reg_addr = (bfa_ioc_bar0(ioc)) + addr; | |
405 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
406 | writel(val, reg_addr); | |
407 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
408 | ||
409 | return nbytes; | |
410 | } | |
411 | ||
412 | static int | |
413 | bnad_debugfs_release(struct inode *inode, struct file *file) | |
414 | { | |
415 | struct bnad_debug_info *debug = file->private_data; | |
416 | ||
417 | if (!debug) | |
418 | return 0; | |
419 | ||
420 | file->private_data = NULL; | |
421 | kfree(debug); | |
422 | return 0; | |
423 | } | |
424 | ||
425 | static int | |
426 | bnad_debugfs_buffer_release(struct inode *inode, struct file *file) | |
427 | { | |
428 | struct bnad_debug_info *debug = file->private_data; | |
429 | ||
430 | if (!debug) | |
431 | return 0; | |
432 | ||
433 | kfree(debug->debug_buffer); | |
434 | ||
435 | file->private_data = NULL; | |
436 | kfree(debug); | |
437 | debug = NULL; | |
438 | return 0; | |
439 | } | |
440 | ||
441 | static const struct file_operations bnad_debugfs_op_fwtrc = { | |
442 | .owner = THIS_MODULE, | |
443 | .open = bnad_debugfs_open_fwtrc, | |
444 | .llseek = bnad_debugfs_lseek, | |
445 | .read = bnad_debugfs_read, | |
446 | .release = bnad_debugfs_buffer_release, | |
447 | }; | |
448 | ||
449 | static const struct file_operations bnad_debugfs_op_fwsave = { | |
450 | .owner = THIS_MODULE, | |
451 | .open = bnad_debugfs_open_fwsave, | |
452 | .llseek = bnad_debugfs_lseek, | |
453 | .read = bnad_debugfs_read, | |
454 | .release = bnad_debugfs_buffer_release, | |
455 | }; | |
456 | ||
457 | static const struct file_operations bnad_debugfs_op_regrd = { | |
458 | .owner = THIS_MODULE, | |
459 | .open = bnad_debugfs_open_reg, | |
460 | .llseek = bnad_debugfs_lseek, | |
461 | .read = bnad_debugfs_read_regrd, | |
462 | .write = bnad_debugfs_write_regrd, | |
463 | .release = bnad_debugfs_release, | |
464 | }; | |
465 | ||
466 | static const struct file_operations bnad_debugfs_op_regwr = { | |
467 | .owner = THIS_MODULE, | |
468 | .open = bnad_debugfs_open_reg, | |
469 | .llseek = bnad_debugfs_lseek, | |
470 | .write = bnad_debugfs_write_regwr, | |
471 | .release = bnad_debugfs_release, | |
472 | }; | |
473 | ||
474 | static const struct file_operations bnad_debugfs_op_drvinfo = { | |
475 | .owner = THIS_MODULE, | |
476 | .open = bnad_debugfs_open_drvinfo, | |
477 | .llseek = bnad_debugfs_lseek, | |
478 | .read = bnad_debugfs_read, | |
479 | .release = bnad_debugfs_buffer_release, | |
480 | }; | |
481 | ||
482 | struct bnad_debugfs_entry { | |
483 | const char *name; | |
88187398 | 484 | umode_t mode; |
7afc5dbd KG |
485 | const struct file_operations *fops; |
486 | }; | |
487 | ||
488 | static const struct bnad_debugfs_entry bnad_debugfs_files[] = { | |
489 | { "fwtrc", S_IFREG|S_IRUGO, &bnad_debugfs_op_fwtrc, }, | |
490 | { "fwsave", S_IFREG|S_IRUGO, &bnad_debugfs_op_fwsave, }, | |
491 | { "regrd", S_IFREG|S_IRUGO|S_IWUSR, &bnad_debugfs_op_regrd, }, | |
492 | { "regwr", S_IFREG|S_IWUSR, &bnad_debugfs_op_regwr, }, | |
493 | { "drvinfo", S_IFREG|S_IRUGO, &bnad_debugfs_op_drvinfo, }, | |
494 | }; | |
495 | ||
496 | static struct dentry *bna_debugfs_root; | |
497 | static atomic_t bna_debugfs_port_count; | |
498 | ||
499 | /* Initialize debugfs interface for BNA */ | |
500 | void | |
501 | bnad_debugfs_init(struct bnad *bnad) | |
502 | { | |
503 | const struct bnad_debugfs_entry *file; | |
504 | char name[64]; | |
505 | int i; | |
506 | ||
507 | /* Setup the BNA debugfs root directory*/ | |
508 | if (!bna_debugfs_root) { | |
509 | bna_debugfs_root = debugfs_create_dir("bna", NULL); | |
510 | atomic_set(&bna_debugfs_port_count, 0); | |
511 | if (!bna_debugfs_root) { | |
ecc46789 IV |
512 | netdev_warn(bnad->netdev, |
513 | "debugfs root dir creation failed\n"); | |
7afc5dbd KG |
514 | return; |
515 | } | |
516 | } | |
517 | ||
518 | /* Setup the pci_dev debugfs directory for the port */ | |
519 | snprintf(name, sizeof(name), "pci_dev:%s", pci_name(bnad->pcidev)); | |
520 | if (!bnad->port_debugfs_root) { | |
521 | bnad->port_debugfs_root = | |
522 | debugfs_create_dir(name, bna_debugfs_root); | |
523 | if (!bnad->port_debugfs_root) { | |
ecc46789 IV |
524 | netdev_warn(bnad->netdev, |
525 | "debugfs root dir creation failed\n"); | |
7afc5dbd KG |
526 | return; |
527 | } | |
528 | ||
529 | atomic_inc(&bna_debugfs_port_count); | |
530 | ||
531 | for (i = 0; i < ARRAY_SIZE(bnad_debugfs_files); i++) { | |
532 | file = &bnad_debugfs_files[i]; | |
533 | bnad->bnad_dentry_files[i] = | |
534 | debugfs_create_file(file->name, | |
535 | file->mode, | |
536 | bnad->port_debugfs_root, | |
537 | bnad, | |
538 | file->fops); | |
539 | if (!bnad->bnad_dentry_files[i]) { | |
ecc46789 IV |
540 | netdev_warn(bnad->netdev, |
541 | "create %s entry failed\n", | |
542 | file->name); | |
7afc5dbd KG |
543 | return; |
544 | } | |
545 | } | |
546 | } | |
547 | } | |
548 | ||
549 | /* Uninitialize debugfs interface for BNA */ | |
550 | void | |
551 | bnad_debugfs_uninit(struct bnad *bnad) | |
552 | { | |
553 | int i; | |
554 | ||
555 | for (i = 0; i < ARRAY_SIZE(bnad_debugfs_files); i++) { | |
556 | if (bnad->bnad_dentry_files[i]) { | |
557 | debugfs_remove(bnad->bnad_dentry_files[i]); | |
558 | bnad->bnad_dentry_files[i] = NULL; | |
559 | } | |
560 | } | |
561 | ||
562 | /* Remove the pci_dev debugfs directory for the port */ | |
563 | if (bnad->port_debugfs_root) { | |
564 | debugfs_remove(bnad->port_debugfs_root); | |
565 | bnad->port_debugfs_root = NULL; | |
566 | atomic_dec(&bna_debugfs_port_count); | |
567 | } | |
568 | ||
569 | /* Remove the BNA debugfs root directory */ | |
570 | if (atomic_read(&bna_debugfs_port_count) == 0) { | |
571 | debugfs_remove(bna_debugfs_root); | |
572 | bna_debugfs_root = NULL; | |
573 | } | |
574 | } |