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52fa7bf9 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
7afc5dbd | 2 | /* |
2732ba56 | 3 | * Linux network driver for QLogic BR-series Converged Network Adapter. |
7afc5dbd KG |
4 | */ |
5 | /* | |
2732ba56 RM |
6 | * Copyright (c) 2005-2014 Brocade Communications Systems, Inc. |
7 | * Copyright (c) 2014-2015 QLogic Corporation | |
7afc5dbd | 8 | * All rights reserved |
2732ba56 | 9 | * www.qlogic.com |
7afc5dbd KG |
10 | */ |
11 | ||
12 | #include <linux/debugfs.h> | |
13 | #include <linux/module.h> | |
14 | #include "bnad.h" | |
15 | ||
16 | /* | |
17 | * BNA debufs interface | |
18 | * | |
19 | * To access the interface, debugfs file system should be mounted | |
20 | * if not already mounted using: | |
21 | * mount -t debugfs none /sys/kernel/debug | |
22 | * | |
23 | * BNA Hierarchy: | |
24 | * - bna/pci_dev:<pci_name> | |
25 | * where the pci_name corresponds to the one under /sys/bus/pci/drivers/bna | |
26 | * | |
27 | * Debugging service available per pci_dev: | |
28 | * fwtrc: To collect current firmware trace. | |
29 | * fwsave: To collect last saved fw trace as a result of firmware crash. | |
30 | * regwr: To write one word to chip register | |
31 | * regrd: To read one or more words from chip register. | |
32 | */ | |
33 | ||
34 | struct bnad_debug_info { | |
35 | char *debug_buffer; | |
36 | void *i_private; | |
37 | int buffer_len; | |
38 | }; | |
39 | ||
40 | static int | |
41 | bnad_debugfs_open_fwtrc(struct inode *inode, struct file *file) | |
42 | { | |
43 | struct bnad *bnad = inode->i_private; | |
44 | struct bnad_debug_info *fw_debug; | |
45 | unsigned long flags; | |
46 | int rc; | |
47 | ||
48 | fw_debug = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
49 | if (!fw_debug) | |
50 | return -ENOMEM; | |
51 | ||
52 | fw_debug->buffer_len = BNA_DBG_FWTRC_LEN; | |
53 | ||
54 | fw_debug->debug_buffer = kzalloc(fw_debug->buffer_len, GFP_KERNEL); | |
55 | if (!fw_debug->debug_buffer) { | |
56 | kfree(fw_debug); | |
57 | fw_debug = NULL; | |
7afc5dbd KG |
58 | return -ENOMEM; |
59 | } | |
60 | ||
61 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
62 | rc = bfa_nw_ioc_debug_fwtrc(&bnad->bna.ioceth.ioc, | |
63 | fw_debug->debug_buffer, | |
64 | &fw_debug->buffer_len); | |
65 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
66 | if (rc != BFA_STATUS_OK) { | |
67 | kfree(fw_debug->debug_buffer); | |
68 | fw_debug->debug_buffer = NULL; | |
69 | kfree(fw_debug); | |
70 | fw_debug = NULL; | |
ecc46789 | 71 | netdev_warn(bnad->netdev, "failed to collect fwtrc\n"); |
7afc5dbd KG |
72 | return -ENOMEM; |
73 | } | |
74 | ||
75 | file->private_data = fw_debug; | |
76 | ||
77 | return 0; | |
78 | } | |
79 | ||
80 | static int | |
81 | bnad_debugfs_open_fwsave(struct inode *inode, struct file *file) | |
82 | { | |
83 | struct bnad *bnad = inode->i_private; | |
84 | struct bnad_debug_info *fw_debug; | |
85 | unsigned long flags; | |
86 | int rc; | |
87 | ||
88 | fw_debug = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
89 | if (!fw_debug) | |
90 | return -ENOMEM; | |
91 | ||
92 | fw_debug->buffer_len = BNA_DBG_FWTRC_LEN; | |
93 | ||
94 | fw_debug->debug_buffer = kzalloc(fw_debug->buffer_len, GFP_KERNEL); | |
95 | if (!fw_debug->debug_buffer) { | |
96 | kfree(fw_debug); | |
97 | fw_debug = NULL; | |
7afc5dbd KG |
98 | return -ENOMEM; |
99 | } | |
100 | ||
101 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
102 | rc = bfa_nw_ioc_debug_fwsave(&bnad->bna.ioceth.ioc, | |
103 | fw_debug->debug_buffer, | |
104 | &fw_debug->buffer_len); | |
105 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
106 | if (rc != BFA_STATUS_OK && rc != BFA_STATUS_ENOFSAVE) { | |
107 | kfree(fw_debug->debug_buffer); | |
108 | fw_debug->debug_buffer = NULL; | |
109 | kfree(fw_debug); | |
110 | fw_debug = NULL; | |
ecc46789 | 111 | netdev_warn(bnad->netdev, "failed to collect fwsave\n"); |
7afc5dbd KG |
112 | return -ENOMEM; |
113 | } | |
114 | ||
115 | file->private_data = fw_debug; | |
116 | ||
117 | return 0; | |
118 | } | |
119 | ||
120 | static int | |
121 | bnad_debugfs_open_reg(struct inode *inode, struct file *file) | |
122 | { | |
123 | struct bnad_debug_info *reg_debug; | |
124 | ||
125 | reg_debug = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
126 | if (!reg_debug) | |
127 | return -ENOMEM; | |
128 | ||
129 | reg_debug->i_private = inode->i_private; | |
130 | ||
131 | file->private_data = reg_debug; | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
136 | static int | |
137 | bnad_get_debug_drvinfo(struct bnad *bnad, void *buffer, u32 len) | |
138 | { | |
139 | struct bnad_drvinfo *drvinfo = (struct bnad_drvinfo *) buffer; | |
140 | struct bnad_iocmd_comp fcomp; | |
141 | unsigned long flags = 0; | |
142 | int ret = BFA_STATUS_FAILED; | |
143 | ||
144 | /* Get IOC info */ | |
145 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
146 | bfa_nw_ioc_get_attr(&bnad->bna.ioceth.ioc, &drvinfo->ioc_attr); | |
147 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
148 | ||
149 | /* Retrieve CEE related info */ | |
150 | fcomp.bnad = bnad; | |
151 | fcomp.comp_status = 0; | |
152 | init_completion(&fcomp.comp); | |
153 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
154 | ret = bfa_nw_cee_get_attr(&bnad->bna.cee, &drvinfo->cee_attr, | |
155 | bnad_cb_completion, &fcomp); | |
156 | if (ret != BFA_STATUS_OK) { | |
157 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
158 | goto out; | |
159 | } | |
160 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
161 | wait_for_completion(&fcomp.comp); | |
162 | drvinfo->cee_status = fcomp.comp_status; | |
163 | ||
164 | /* Retrieve flash partition info */ | |
165 | fcomp.comp_status = 0; | |
6e4ab361 | 166 | reinit_completion(&fcomp.comp); |
7afc5dbd KG |
167 | spin_lock_irqsave(&bnad->bna_lock, flags); |
168 | ret = bfa_nw_flash_get_attr(&bnad->bna.flash, &drvinfo->flash_attr, | |
169 | bnad_cb_completion, &fcomp); | |
170 | if (ret != BFA_STATUS_OK) { | |
171 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
172 | goto out; | |
173 | } | |
174 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
175 | wait_for_completion(&fcomp.comp); | |
176 | drvinfo->flash_status = fcomp.comp_status; | |
177 | out: | |
178 | return ret; | |
179 | } | |
180 | ||
181 | static int | |
182 | bnad_debugfs_open_drvinfo(struct inode *inode, struct file *file) | |
183 | { | |
184 | struct bnad *bnad = inode->i_private; | |
185 | struct bnad_debug_info *drv_info; | |
186 | int rc; | |
187 | ||
188 | drv_info = kzalloc(sizeof(struct bnad_debug_info), GFP_KERNEL); | |
189 | if (!drv_info) | |
190 | return -ENOMEM; | |
191 | ||
192 | drv_info->buffer_len = sizeof(struct bnad_drvinfo); | |
193 | ||
194 | drv_info->debug_buffer = kzalloc(drv_info->buffer_len, GFP_KERNEL); | |
195 | if (!drv_info->debug_buffer) { | |
196 | kfree(drv_info); | |
197 | drv_info = NULL; | |
7afc5dbd KG |
198 | return -ENOMEM; |
199 | } | |
200 | ||
201 | mutex_lock(&bnad->conf_mutex); | |
202 | rc = bnad_get_debug_drvinfo(bnad, drv_info->debug_buffer, | |
203 | drv_info->buffer_len); | |
204 | mutex_unlock(&bnad->conf_mutex); | |
205 | if (rc != BFA_STATUS_OK) { | |
206 | kfree(drv_info->debug_buffer); | |
207 | drv_info->debug_buffer = NULL; | |
208 | kfree(drv_info); | |
209 | drv_info = NULL; | |
ecc46789 | 210 | netdev_warn(bnad->netdev, "failed to collect drvinfo\n"); |
7afc5dbd KG |
211 | return -ENOMEM; |
212 | } | |
213 | ||
214 | file->private_data = drv_info; | |
215 | ||
216 | return 0; | |
217 | } | |
218 | ||
219 | /* Changes the current file position */ | |
220 | static loff_t | |
221 | bnad_debugfs_lseek(struct file *file, loff_t offset, int orig) | |
222 | { | |
7afc5dbd KG |
223 | struct bnad_debug_info *debug = file->private_data; |
224 | ||
225 | if (!debug) | |
226 | return -EINVAL; | |
227 | ||
c0caa07b | 228 | return fixed_size_llseek(file, offset, orig, debug->buffer_len); |
7afc5dbd KG |
229 | } |
230 | ||
231 | static ssize_t | |
232 | bnad_debugfs_read(struct file *file, char __user *buf, | |
233 | size_t nbytes, loff_t *pos) | |
234 | { | |
235 | struct bnad_debug_info *debug = file->private_data; | |
236 | ||
237 | if (!debug || !debug->debug_buffer) | |
238 | return 0; | |
239 | ||
240 | return simple_read_from_buffer(buf, nbytes, pos, | |
241 | debug->debug_buffer, debug->buffer_len); | |
242 | } | |
243 | ||
244 | #define BFA_REG_CT_ADDRSZ (0x40000) | |
245 | #define BFA_REG_CB_ADDRSZ (0x20000) | |
246 | #define BFA_REG_ADDRSZ(__ioc) \ | |
247 | ((u32)(bfa_asic_id_ctc(bfa_ioc_devid(__ioc)) ? \ | |
248 | BFA_REG_CT_ADDRSZ : BFA_REG_CB_ADDRSZ)) | |
249 | #define BFA_REG_ADDRMSK(__ioc) (BFA_REG_ADDRSZ(__ioc) - 1) | |
250 | ||
251 | /* | |
252 | * Function to check if the register offset passed is valid. | |
253 | */ | |
254 | static int | |
255 | bna_reg_offset_check(struct bfa_ioc *ioc, u32 offset, u32 len) | |
256 | { | |
257 | u8 area; | |
258 | ||
259 | /* check [16:15] */ | |
260 | area = (offset >> 15) & 0x7; | |
261 | if (area == 0) { | |
262 | /* PCIe core register */ | |
ebb56d37 | 263 | if (offset + (len << 2) > 0x8000) /* 8k dwords or 32KB */ |
7afc5dbd KG |
264 | return BFA_STATUS_EINVAL; |
265 | } else if (area == 0x1) { | |
266 | /* CB 32 KB memory page */ | |
ebb56d37 | 267 | if (offset + (len << 2) > 0x10000) /* 8k dwords or 32KB */ |
7afc5dbd KG |
268 | return BFA_STATUS_EINVAL; |
269 | } else { | |
270 | /* CB register space 64KB */ | |
ebb56d37 | 271 | if (offset + (len << 2) > BFA_REG_ADDRMSK(ioc)) |
7afc5dbd KG |
272 | return BFA_STATUS_EINVAL; |
273 | } | |
274 | return BFA_STATUS_OK; | |
275 | } | |
276 | ||
277 | static ssize_t | |
278 | bnad_debugfs_read_regrd(struct file *file, char __user *buf, | |
279 | size_t nbytes, loff_t *pos) | |
280 | { | |
281 | struct bnad_debug_info *regrd_debug = file->private_data; | |
282 | struct bnad *bnad = (struct bnad *)regrd_debug->i_private; | |
283 | ssize_t rc; | |
284 | ||
285 | if (!bnad->regdata) | |
286 | return 0; | |
287 | ||
288 | rc = simple_read_from_buffer(buf, nbytes, pos, | |
289 | bnad->regdata, bnad->reglen); | |
290 | ||
291 | if ((*pos + nbytes) >= bnad->reglen) { | |
292 | kfree(bnad->regdata); | |
293 | bnad->regdata = NULL; | |
294 | bnad->reglen = 0; | |
295 | } | |
296 | ||
297 | return rc; | |
298 | } | |
299 | ||
300 | static ssize_t | |
301 | bnad_debugfs_write_regrd(struct file *file, const char __user *buf, | |
302 | size_t nbytes, loff_t *ppos) | |
303 | { | |
304 | struct bnad_debug_info *regrd_debug = file->private_data; | |
305 | struct bnad *bnad = (struct bnad *)regrd_debug->i_private; | |
306 | struct bfa_ioc *ioc = &bnad->bna.ioceth.ioc; | |
112b6b79 | 307 | int rc, i; |
308 | u32 addr, len; | |
7afc5dbd KG |
309 | u32 *regbuf; |
310 | void __iomem *rb, *reg_addr; | |
311 | unsigned long flags; | |
312 | void *kern_buf; | |
313 | ||
d0e6a806 | 314 | /* Copy the user space buf */ |
8c34096c | 315 | kern_buf = memdup_user_nul(buf, nbytes); |
d0e6a806 IV |
316 | if (IS_ERR(kern_buf)) |
317 | return PTR_ERR(kern_buf); | |
7afc5dbd KG |
318 | |
319 | rc = sscanf(kern_buf, "%x:%x", &addr, &len); | |
13e2d518 | 320 | if (rc < 2 || len > UINT_MAX >> 2) { |
ecc46789 | 321 | netdev_warn(bnad->netdev, "failed to read user buffer\n"); |
7afc5dbd KG |
322 | kfree(kern_buf); |
323 | return -EINVAL; | |
324 | } | |
325 | ||
326 | kfree(kern_buf); | |
327 | kfree(bnad->regdata); | |
7afc5dbd KG |
328 | bnad->reglen = 0; |
329 | ||
330 | bnad->regdata = kzalloc(len << 2, GFP_KERNEL); | |
e404decb | 331 | if (!bnad->regdata) |
7afc5dbd | 332 | return -ENOMEM; |
7afc5dbd KG |
333 | |
334 | bnad->reglen = len << 2; | |
335 | rb = bfa_ioc_bar0(ioc); | |
336 | addr &= BFA_REG_ADDRMSK(ioc); | |
337 | ||
338 | /* offset and len sanity check */ | |
339 | rc = bna_reg_offset_check(ioc, addr, len); | |
340 | if (rc) { | |
ecc46789 | 341 | netdev_warn(bnad->netdev, "failed reg offset check\n"); |
7afc5dbd KG |
342 | kfree(bnad->regdata); |
343 | bnad->regdata = NULL; | |
344 | bnad->reglen = 0; | |
345 | return -EINVAL; | |
346 | } | |
347 | ||
348 | reg_addr = rb + addr; | |
349 | regbuf = (u32 *)bnad->regdata; | |
350 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
351 | for (i = 0; i < len; i++) { | |
352 | *regbuf = readl(reg_addr); | |
353 | regbuf++; | |
354 | reg_addr += sizeof(u32); | |
355 | } | |
356 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
357 | ||
358 | return nbytes; | |
359 | } | |
360 | ||
361 | static ssize_t | |
362 | bnad_debugfs_write_regwr(struct file *file, const char __user *buf, | |
363 | size_t nbytes, loff_t *ppos) | |
364 | { | |
365 | struct bnad_debug_info *debug = file->private_data; | |
366 | struct bnad *bnad = (struct bnad *)debug->i_private; | |
367 | struct bfa_ioc *ioc = &bnad->bna.ioceth.ioc; | |
4c2e9e29 | 368 | int rc; |
369 | u32 addr, val; | |
7afc5dbd KG |
370 | void __iomem *reg_addr; |
371 | unsigned long flags; | |
372 | void *kern_buf; | |
373 | ||
d0e6a806 | 374 | /* Copy the user space buf */ |
8c34096c | 375 | kern_buf = memdup_user_nul(buf, nbytes); |
d0e6a806 IV |
376 | if (IS_ERR(kern_buf)) |
377 | return PTR_ERR(kern_buf); | |
7afc5dbd KG |
378 | |
379 | rc = sscanf(kern_buf, "%x:%x", &addr, &val); | |
380 | if (rc < 2) { | |
ecc46789 | 381 | netdev_warn(bnad->netdev, "failed to read user buffer\n"); |
7afc5dbd KG |
382 | kfree(kern_buf); |
383 | return -EINVAL; | |
384 | } | |
385 | kfree(kern_buf); | |
386 | ||
387 | addr &= BFA_REG_ADDRMSK(ioc); /* offset only 17 bit and word align */ | |
388 | ||
389 | /* offset and len sanity check */ | |
390 | rc = bna_reg_offset_check(ioc, addr, 1); | |
391 | if (rc) { | |
ecc46789 | 392 | netdev_warn(bnad->netdev, "failed reg offset check\n"); |
7afc5dbd KG |
393 | return -EINVAL; |
394 | } | |
395 | ||
396 | reg_addr = (bfa_ioc_bar0(ioc)) + addr; | |
397 | spin_lock_irqsave(&bnad->bna_lock, flags); | |
398 | writel(val, reg_addr); | |
399 | spin_unlock_irqrestore(&bnad->bna_lock, flags); | |
400 | ||
401 | return nbytes; | |
402 | } | |
403 | ||
404 | static int | |
405 | bnad_debugfs_release(struct inode *inode, struct file *file) | |
406 | { | |
407 | struct bnad_debug_info *debug = file->private_data; | |
408 | ||
409 | if (!debug) | |
410 | return 0; | |
411 | ||
412 | file->private_data = NULL; | |
413 | kfree(debug); | |
414 | return 0; | |
415 | } | |
416 | ||
417 | static int | |
418 | bnad_debugfs_buffer_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 | kfree(debug->debug_buffer); | |
426 | ||
427 | file->private_data = NULL; | |
428 | kfree(debug); | |
429 | debug = NULL; | |
430 | return 0; | |
431 | } | |
432 | ||
433 | static const struct file_operations bnad_debugfs_op_fwtrc = { | |
434 | .owner = THIS_MODULE, | |
435 | .open = bnad_debugfs_open_fwtrc, | |
436 | .llseek = bnad_debugfs_lseek, | |
437 | .read = bnad_debugfs_read, | |
438 | .release = bnad_debugfs_buffer_release, | |
439 | }; | |
440 | ||
441 | static const struct file_operations bnad_debugfs_op_fwsave = { | |
442 | .owner = THIS_MODULE, | |
443 | .open = bnad_debugfs_open_fwsave, | |
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_regrd = { | |
450 | .owner = THIS_MODULE, | |
451 | .open = bnad_debugfs_open_reg, | |
452 | .llseek = bnad_debugfs_lseek, | |
453 | .read = bnad_debugfs_read_regrd, | |
454 | .write = bnad_debugfs_write_regrd, | |
455 | .release = bnad_debugfs_release, | |
456 | }; | |
457 | ||
458 | static const struct file_operations bnad_debugfs_op_regwr = { | |
459 | .owner = THIS_MODULE, | |
460 | .open = bnad_debugfs_open_reg, | |
461 | .llseek = bnad_debugfs_lseek, | |
462 | .write = bnad_debugfs_write_regwr, | |
463 | .release = bnad_debugfs_release, | |
464 | }; | |
465 | ||
466 | static const struct file_operations bnad_debugfs_op_drvinfo = { | |
467 | .owner = THIS_MODULE, | |
468 | .open = bnad_debugfs_open_drvinfo, | |
469 | .llseek = bnad_debugfs_lseek, | |
470 | .read = bnad_debugfs_read, | |
471 | .release = bnad_debugfs_buffer_release, | |
472 | }; | |
473 | ||
474 | struct bnad_debugfs_entry { | |
475 | const char *name; | |
88187398 | 476 | umode_t mode; |
7afc5dbd KG |
477 | const struct file_operations *fops; |
478 | }; | |
479 | ||
480 | static const struct bnad_debugfs_entry bnad_debugfs_files[] = { | |
d3757ba4 JP |
481 | { "fwtrc", S_IFREG | 0444, &bnad_debugfs_op_fwtrc, }, |
482 | { "fwsave", S_IFREG | 0444, &bnad_debugfs_op_fwsave, }, | |
483 | { "regrd", S_IFREG | 0644, &bnad_debugfs_op_regrd, }, | |
484 | { "regwr", S_IFREG | 0200, &bnad_debugfs_op_regwr, }, | |
485 | { "drvinfo", S_IFREG | 0444, &bnad_debugfs_op_drvinfo, }, | |
7afc5dbd KG |
486 | }; |
487 | ||
488 | static struct dentry *bna_debugfs_root; | |
489 | static atomic_t bna_debugfs_port_count; | |
490 | ||
491 | /* Initialize debugfs interface for BNA */ | |
492 | void | |
493 | bnad_debugfs_init(struct bnad *bnad) | |
494 | { | |
495 | const struct bnad_debugfs_entry *file; | |
496 | char name[64]; | |
497 | int i; | |
498 | ||
499 | /* Setup the BNA debugfs root directory*/ | |
500 | if (!bna_debugfs_root) { | |
501 | bna_debugfs_root = debugfs_create_dir("bna", NULL); | |
502 | atomic_set(&bna_debugfs_port_count, 0); | |
503 | if (!bna_debugfs_root) { | |
ecc46789 IV |
504 | netdev_warn(bnad->netdev, |
505 | "debugfs root dir creation failed\n"); | |
7afc5dbd KG |
506 | return; |
507 | } | |
508 | } | |
509 | ||
510 | /* Setup the pci_dev debugfs directory for the port */ | |
511 | snprintf(name, sizeof(name), "pci_dev:%s", pci_name(bnad->pcidev)); | |
512 | if (!bnad->port_debugfs_root) { | |
513 | bnad->port_debugfs_root = | |
514 | debugfs_create_dir(name, bna_debugfs_root); | |
7afc5dbd KG |
515 | |
516 | atomic_inc(&bna_debugfs_port_count); | |
517 | ||
518 | for (i = 0; i < ARRAY_SIZE(bnad_debugfs_files); i++) { | |
519 | file = &bnad_debugfs_files[i]; | |
520 | bnad->bnad_dentry_files[i] = | |
521 | debugfs_create_file(file->name, | |
522 | file->mode, | |
523 | bnad->port_debugfs_root, | |
524 | bnad, | |
525 | file->fops); | |
526 | if (!bnad->bnad_dentry_files[i]) { | |
ecc46789 IV |
527 | netdev_warn(bnad->netdev, |
528 | "create %s entry failed\n", | |
529 | file->name); | |
7afc5dbd KG |
530 | return; |
531 | } | |
532 | } | |
533 | } | |
534 | } | |
535 | ||
536 | /* Uninitialize debugfs interface for BNA */ | |
537 | void | |
538 | bnad_debugfs_uninit(struct bnad *bnad) | |
539 | { | |
540 | int i; | |
541 | ||
542 | for (i = 0; i < ARRAY_SIZE(bnad_debugfs_files); i++) { | |
543 | if (bnad->bnad_dentry_files[i]) { | |
544 | debugfs_remove(bnad->bnad_dentry_files[i]); | |
545 | bnad->bnad_dentry_files[i] = NULL; | |
546 | } | |
547 | } | |
548 | ||
549 | /* Remove the pci_dev debugfs directory for the port */ | |
550 | if (bnad->port_debugfs_root) { | |
551 | debugfs_remove(bnad->port_debugfs_root); | |
552 | bnad->port_debugfs_root = NULL; | |
553 | atomic_dec(&bna_debugfs_port_count); | |
554 | } | |
555 | ||
556 | /* Remove the BNA debugfs root directory */ | |
557 | if (atomic_read(&bna_debugfs_port_count) == 0) { | |
558 | debugfs_remove(bna_debugfs_root); | |
559 | bna_debugfs_root = NULL; | |
560 | } | |
561 | } |