]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004 Topspin Communications. All rights reserved. | |
3 | * | |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
1da177e4 LT |
31 | */ |
32 | ||
9adec1a8 | 33 | #include <linux/err.h> |
1da177e4 | 34 | #include <linux/seq_file.h> |
5a0e3ad6 | 35 | #include <linux/slab.h> |
1da177e4 | 36 | |
9adec1a8 | 37 | struct file_operations; |
1da177e4 | 38 | |
9adec1a8 RD |
39 | #include <linux/debugfs.h> |
40 | ||
41 | #include "ipoib.h" | |
1da177e4 | 42 | |
1da177e4 | 43 | static struct dentry *ipoib_root; |
1da177e4 | 44 | |
1732b0ef RD |
45 | static void format_gid(union ib_gid *gid, char *buf) |
46 | { | |
47 | int i, n; | |
48 | ||
49 | for (n = 0, i = 0; i < 8; ++i) { | |
50 | n += sprintf(buf + n, "%x", | |
51 | be16_to_cpu(((__be16 *) gid->raw)[i])); | |
52 | if (i < 7) | |
53 | buf[n++] = ':'; | |
54 | } | |
55 | } | |
56 | ||
1da177e4 LT |
57 | static void *ipoib_mcg_seq_start(struct seq_file *file, loff_t *pos) |
58 | { | |
59 | struct ipoib_mcast_iter *iter; | |
60 | loff_t n = *pos; | |
61 | ||
62 | iter = ipoib_mcast_iter_init(file->private); | |
63 | if (!iter) | |
64 | return NULL; | |
65 | ||
66 | while (n--) { | |
67 | if (ipoib_mcast_iter_next(iter)) { | |
1732b0ef | 68 | kfree(iter); |
1da177e4 LT |
69 | return NULL; |
70 | } | |
71 | } | |
72 | ||
73 | return iter; | |
74 | } | |
75 | ||
76 | static void *ipoib_mcg_seq_next(struct seq_file *file, void *iter_ptr, | |
77 | loff_t *pos) | |
78 | { | |
79 | struct ipoib_mcast_iter *iter = iter_ptr; | |
80 | ||
81 | (*pos)++; | |
82 | ||
83 | if (ipoib_mcast_iter_next(iter)) { | |
1732b0ef | 84 | kfree(iter); |
1da177e4 LT |
85 | return NULL; |
86 | } | |
87 | ||
88 | return iter; | |
89 | } | |
90 | ||
91 | static void ipoib_mcg_seq_stop(struct seq_file *file, void *iter_ptr) | |
92 | { | |
93 | /* nothing for now */ | |
94 | } | |
95 | ||
96 | static int ipoib_mcg_seq_show(struct seq_file *file, void *iter_ptr) | |
97 | { | |
98 | struct ipoib_mcast_iter *iter = iter_ptr; | |
99 | char gid_buf[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"]; | |
100 | union ib_gid mgid; | |
1da177e4 LT |
101 | unsigned long created; |
102 | unsigned int queuelen, complete, send_only; | |
103 | ||
1732b0ef RD |
104 | if (!iter) |
105 | return 0; | |
1da177e4 | 106 | |
1732b0ef RD |
107 | ipoib_mcast_iter_read(iter, &mgid, &created, &queuelen, |
108 | &complete, &send_only); | |
1da177e4 | 109 | |
1732b0ef | 110 | format_gid(&mgid, gid_buf); |
1da177e4 LT |
111 | |
112 | seq_printf(file, | |
1732b0ef RD |
113 | "GID: %s\n" |
114 | " created: %10ld\n" | |
115 | " queuelen: %9d\n" | |
116 | " complete: %9s\n" | |
117 | " send_only: %8s\n" | |
118 | "\n", | |
119 | gid_buf, created, queuelen, | |
120 | complete ? "yes" : "no", | |
121 | send_only ? "yes" : "no"); | |
1da177e4 LT |
122 | |
123 | return 0; | |
124 | } | |
125 | ||
1cf18d5a | 126 | static const struct seq_operations ipoib_mcg_seq_ops = { |
1da177e4 LT |
127 | .start = ipoib_mcg_seq_start, |
128 | .next = ipoib_mcg_seq_next, | |
129 | .stop = ipoib_mcg_seq_stop, | |
130 | .show = ipoib_mcg_seq_show, | |
131 | }; | |
132 | ||
133 | static int ipoib_mcg_open(struct inode *inode, struct file *file) | |
134 | { | |
135 | struct seq_file *seq; | |
136 | int ret; | |
137 | ||
1732b0ef | 138 | ret = seq_open(file, &ipoib_mcg_seq_ops); |
1da177e4 LT |
139 | if (ret) |
140 | return ret; | |
141 | ||
142 | seq = file->private_data; | |
8e18e294 | 143 | seq->private = inode->i_private; |
1da177e4 LT |
144 | |
145 | return 0; | |
146 | } | |
147 | ||
2b8693c0 | 148 | static const struct file_operations ipoib_mcg_fops = { |
1da177e4 LT |
149 | .owner = THIS_MODULE, |
150 | .open = ipoib_mcg_open, | |
151 | .read = seq_read, | |
152 | .llseek = seq_lseek, | |
153 | .release = seq_release | |
154 | }; | |
155 | ||
1732b0ef RD |
156 | static void *ipoib_path_seq_start(struct seq_file *file, loff_t *pos) |
157 | { | |
158 | struct ipoib_path_iter *iter; | |
159 | loff_t n = *pos; | |
160 | ||
161 | iter = ipoib_path_iter_init(file->private); | |
162 | if (!iter) | |
163 | return NULL; | |
164 | ||
165 | while (n--) { | |
166 | if (ipoib_path_iter_next(iter)) { | |
167 | kfree(iter); | |
168 | return NULL; | |
169 | } | |
170 | } | |
171 | ||
172 | return iter; | |
173 | } | |
174 | ||
175 | static void *ipoib_path_seq_next(struct seq_file *file, void *iter_ptr, | |
176 | loff_t *pos) | |
177 | { | |
178 | struct ipoib_path_iter *iter = iter_ptr; | |
179 | ||
180 | (*pos)++; | |
181 | ||
182 | if (ipoib_path_iter_next(iter)) { | |
183 | kfree(iter); | |
184 | return NULL; | |
185 | } | |
186 | ||
187 | return iter; | |
188 | } | |
189 | ||
190 | static void ipoib_path_seq_stop(struct seq_file *file, void *iter_ptr) | |
191 | { | |
192 | /* nothing for now */ | |
193 | } | |
194 | ||
195 | static int ipoib_path_seq_show(struct seq_file *file, void *iter_ptr) | |
196 | { | |
197 | struct ipoib_path_iter *iter = iter_ptr; | |
198 | char gid_buf[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"]; | |
199 | struct ipoib_path path; | |
200 | int rate; | |
201 | ||
202 | if (!iter) | |
203 | return 0; | |
204 | ||
205 | ipoib_path_iter_read(iter, &path); | |
206 | ||
207 | format_gid(&path.pathrec.dgid, gid_buf); | |
208 | ||
209 | seq_printf(file, | |
210 | "GID: %s\n" | |
211 | " complete: %6s\n", | |
212 | gid_buf, path.pathrec.dlid ? "yes" : "no"); | |
213 | ||
214 | if (path.pathrec.dlid) { | |
bf6a9e31 | 215 | rate = ib_rate_to_mult(path.pathrec.rate) * 25; |
1732b0ef RD |
216 | |
217 | seq_printf(file, | |
218 | " DLID: 0x%04x\n" | |
219 | " SL: %12d\n" | |
220 | " rate: %*d%s Gb/sec\n", | |
221 | be16_to_cpu(path.pathrec.dlid), | |
222 | path.pathrec.sl, | |
223 | 10 - ((rate % 10) ? 2 : 0), | |
224 | rate / 10, rate % 10 ? ".5" : ""); | |
225 | } | |
226 | ||
227 | seq_putc(file, '\n'); | |
228 | ||
229 | return 0; | |
230 | } | |
231 | ||
1cf18d5a | 232 | static const struct seq_operations ipoib_path_seq_ops = { |
1732b0ef RD |
233 | .start = ipoib_path_seq_start, |
234 | .next = ipoib_path_seq_next, | |
235 | .stop = ipoib_path_seq_stop, | |
236 | .show = ipoib_path_seq_show, | |
237 | }; | |
238 | ||
239 | static int ipoib_path_open(struct inode *inode, struct file *file) | |
240 | { | |
241 | struct seq_file *seq; | |
242 | int ret; | |
243 | ||
244 | ret = seq_open(file, &ipoib_path_seq_ops); | |
245 | if (ret) | |
246 | return ret; | |
247 | ||
248 | seq = file->private_data; | |
8e18e294 | 249 | seq->private = inode->i_private; |
1732b0ef RD |
250 | |
251 | return 0; | |
252 | } | |
253 | ||
2b8693c0 | 254 | static const struct file_operations ipoib_path_fops = { |
1732b0ef RD |
255 | .owner = THIS_MODULE, |
256 | .open = ipoib_path_open, | |
257 | .read = seq_read, | |
258 | .llseek = seq_lseek, | |
259 | .release = seq_release | |
260 | }; | |
261 | ||
262 | void ipoib_create_debug_files(struct net_device *dev) | |
1da177e4 LT |
263 | { |
264 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
1732b0ef | 265 | char name[IFNAMSIZ + sizeof "_path"]; |
1da177e4 LT |
266 | |
267 | snprintf(name, sizeof name, "%s_mcg", dev->name); | |
9adec1a8 | 268 | priv->mcg_dentry = debugfs_create_file(name, S_IFREG | S_IRUGO, |
1732b0ef RD |
269 | ipoib_root, dev, &ipoib_mcg_fops); |
270 | if (!priv->mcg_dentry) | |
271 | ipoib_warn(priv, "failed to create mcg debug file\n"); | |
272 | ||
273 | snprintf(name, sizeof name, "%s_path", dev->name); | |
274 | priv->path_dentry = debugfs_create_file(name, S_IFREG | S_IRUGO, | |
275 | ipoib_root, dev, &ipoib_path_fops); | |
276 | if (!priv->path_dentry) | |
277 | ipoib_warn(priv, "failed to create path debug file\n"); | |
1da177e4 LT |
278 | } |
279 | ||
1732b0ef | 280 | void ipoib_delete_debug_files(struct net_device *dev) |
1da177e4 LT |
281 | { |
282 | struct ipoib_dev_priv *priv = netdev_priv(dev); | |
283 | ||
9adec1a8 RD |
284 | if (priv->mcg_dentry) |
285 | debugfs_remove(priv->mcg_dentry); | |
1732b0ef RD |
286 | if (priv->path_dentry) |
287 | debugfs_remove(priv->path_dentry); | |
1da177e4 LT |
288 | } |
289 | ||
1da177e4 LT |
290 | int ipoib_register_debugfs(void) |
291 | { | |
9adec1a8 RD |
292 | ipoib_root = debugfs_create_dir("ipoib", NULL); |
293 | return ipoib_root ? 0 : -ENOMEM; | |
1da177e4 LT |
294 | } |
295 | ||
296 | void ipoib_unregister_debugfs(void) | |
297 | { | |
9adec1a8 | 298 | debugfs_remove(ipoib_root); |
1da177e4 | 299 | } |