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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. | |
2a1d9b7f RD |
3 | * Copyright (c) 2005 Mellanox Technologies Ltd. All rights reserved. |
4 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. | |
1da177e4 LT |
5 | * |
6 | * This software is available to you under a choice of one of two | |
7 | * licenses. You may choose to be licensed under the terms of the GNU | |
8 | * General Public License (GPL) Version 2, available from the file | |
9 | * COPYING in the main directory of this source tree, or the | |
10 | * OpenIB.org BSD license below: | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or | |
13 | * without modification, are permitted provided that the following | |
14 | * conditions are met: | |
15 | * | |
16 | * - Redistributions of source code must retain the above | |
17 | * copyright notice, this list of conditions and the following | |
18 | * disclaimer. | |
19 | * | |
20 | * - Redistributions in binary form must reproduce the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer in the documentation and/or other materials | |
23 | * provided with the distribution. | |
24 | * | |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
32 | * SOFTWARE. | |
33 | * | |
34 | * $Id: sysfs.c 1349 2004-12-16 21:09:43Z roland $ | |
35 | */ | |
36 | ||
37 | #include "core_priv.h" | |
38 | ||
8c65b4a6 TS |
39 | #include <linux/slab.h> |
40 | #include <linux/string.h> | |
41 | ||
a4d61e84 | 42 | #include <rdma/ib_mad.h> |
1da177e4 LT |
43 | |
44 | struct ib_port { | |
45 | struct kobject kobj; | |
46 | struct ib_device *ibdev; | |
47 | struct attribute_group gid_group; | |
1da177e4 | 48 | struct attribute_group pkey_group; |
1da177e4 LT |
49 | u8 port_num; |
50 | }; | |
51 | ||
52 | struct port_attribute { | |
53 | struct attribute attr; | |
54 | ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf); | |
55 | ssize_t (*store)(struct ib_port *, struct port_attribute *, | |
56 | const char *buf, size_t count); | |
57 | }; | |
58 | ||
59 | #define PORT_ATTR(_name, _mode, _show, _store) \ | |
60 | struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store) | |
61 | ||
62 | #define PORT_ATTR_RO(_name) \ | |
63 | struct port_attribute port_attr_##_name = __ATTR_RO(_name) | |
64 | ||
65 | struct port_table_attribute { | |
d48593bf DT |
66 | struct port_attribute attr; |
67 | char name[8]; | |
68 | int index; | |
1da177e4 LT |
69 | }; |
70 | ||
3cd96564 | 71 | static inline int ibdev_is_alive(const struct ib_device *dev) |
ba8e9310 RD |
72 | { |
73 | return dev->reg_state == IB_DEV_REGISTERED; | |
74 | } | |
75 | ||
1da177e4 LT |
76 | static ssize_t port_attr_show(struct kobject *kobj, |
77 | struct attribute *attr, char *buf) | |
78 | { | |
79 | struct port_attribute *port_attr = | |
80 | container_of(attr, struct port_attribute, attr); | |
81 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); | |
82 | ||
83 | if (!port_attr->show) | |
70f2817a | 84 | return -EIO; |
ba8e9310 RD |
85 | if (!ibdev_is_alive(p->ibdev)) |
86 | return -ENODEV; | |
1da177e4 LT |
87 | |
88 | return port_attr->show(p, port_attr, buf); | |
89 | } | |
90 | ||
91 | static struct sysfs_ops port_sysfs_ops = { | |
92 | .show = port_attr_show | |
93 | }; | |
94 | ||
95 | static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, | |
96 | char *buf) | |
97 | { | |
98 | struct ib_port_attr attr; | |
99 | ssize_t ret; | |
100 | ||
101 | static const char *state_name[] = { | |
102 | [IB_PORT_NOP] = "NOP", | |
103 | [IB_PORT_DOWN] = "DOWN", | |
104 | [IB_PORT_INIT] = "INIT", | |
105 | [IB_PORT_ARMED] = "ARMED", | |
106 | [IB_PORT_ACTIVE] = "ACTIVE", | |
107 | [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" | |
108 | }; | |
109 | ||
110 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
111 | if (ret) | |
112 | return ret; | |
113 | ||
114 | return sprintf(buf, "%d: %s\n", attr.state, | |
048975ac | 115 | attr.state >= 0 && attr.state < ARRAY_SIZE(state_name) ? |
1da177e4 LT |
116 | state_name[attr.state] : "UNKNOWN"); |
117 | } | |
118 | ||
119 | static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, | |
120 | char *buf) | |
121 | { | |
122 | struct ib_port_attr attr; | |
123 | ssize_t ret; | |
124 | ||
125 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
126 | if (ret) | |
127 | return ret; | |
128 | ||
129 | return sprintf(buf, "0x%x\n", attr.lid); | |
130 | } | |
131 | ||
132 | static ssize_t lid_mask_count_show(struct ib_port *p, | |
133 | struct port_attribute *unused, | |
134 | char *buf) | |
135 | { | |
136 | struct ib_port_attr attr; | |
137 | ssize_t ret; | |
138 | ||
139 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
140 | if (ret) | |
141 | return ret; | |
142 | ||
143 | return sprintf(buf, "%d\n", attr.lmc); | |
144 | } | |
145 | ||
146 | static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, | |
147 | char *buf) | |
148 | { | |
149 | struct ib_port_attr attr; | |
150 | ssize_t ret; | |
151 | ||
152 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
153 | if (ret) | |
154 | return ret; | |
155 | ||
156 | return sprintf(buf, "0x%x\n", attr.sm_lid); | |
157 | } | |
158 | ||
159 | static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, | |
160 | char *buf) | |
161 | { | |
162 | struct ib_port_attr attr; | |
163 | ssize_t ret; | |
164 | ||
165 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
166 | if (ret) | |
167 | return ret; | |
168 | ||
169 | return sprintf(buf, "%d\n", attr.sm_sl); | |
170 | } | |
171 | ||
172 | static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, | |
173 | char *buf) | |
174 | { | |
175 | struct ib_port_attr attr; | |
176 | ssize_t ret; | |
177 | ||
178 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
179 | if (ret) | |
180 | return ret; | |
181 | ||
182 | return sprintf(buf, "0x%08x\n", attr.port_cap_flags); | |
183 | } | |
184 | ||
185 | static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, | |
186 | char *buf) | |
187 | { | |
188 | struct ib_port_attr attr; | |
189 | char *speed = ""; | |
190 | int rate; | |
191 | ssize_t ret; | |
192 | ||
193 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
194 | if (ret) | |
195 | return ret; | |
196 | ||
197 | switch (attr.active_speed) { | |
198 | case 2: speed = " DDR"; break; | |
199 | case 4: speed = " QDR"; break; | |
200 | } | |
201 | ||
202 | rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; | |
203 | if (rate < 0) | |
204 | return -EINVAL; | |
205 | ||
206 | return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", | |
207 | rate / 10, rate % 10 ? ".5" : "", | |
208 | ib_width_enum_to_int(attr.active_width), speed); | |
209 | } | |
210 | ||
211 | static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, | |
212 | char *buf) | |
213 | { | |
214 | struct ib_port_attr attr; | |
215 | ||
216 | ssize_t ret; | |
217 | ||
218 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
219 | if (ret) | |
220 | return ret; | |
221 | ||
222 | switch (attr.phys_state) { | |
223 | case 1: return sprintf(buf, "1: Sleep\n"); | |
224 | case 2: return sprintf(buf, "2: Polling\n"); | |
225 | case 3: return sprintf(buf, "3: Disabled\n"); | |
226 | case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); | |
227 | case 5: return sprintf(buf, "5: LinkUp\n"); | |
228 | case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); | |
229 | case 7: return sprintf(buf, "7: Phy Test\n"); | |
230 | default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); | |
231 | } | |
232 | } | |
233 | ||
234 | static PORT_ATTR_RO(state); | |
235 | static PORT_ATTR_RO(lid); | |
236 | static PORT_ATTR_RO(lid_mask_count); | |
237 | static PORT_ATTR_RO(sm_lid); | |
238 | static PORT_ATTR_RO(sm_sl); | |
239 | static PORT_ATTR_RO(cap_mask); | |
240 | static PORT_ATTR_RO(rate); | |
241 | static PORT_ATTR_RO(phys_state); | |
242 | ||
243 | static struct attribute *port_default_attrs[] = { | |
244 | &port_attr_state.attr, | |
245 | &port_attr_lid.attr, | |
246 | &port_attr_lid_mask_count.attr, | |
247 | &port_attr_sm_lid.attr, | |
248 | &port_attr_sm_sl.attr, | |
249 | &port_attr_cap_mask.attr, | |
250 | &port_attr_rate.attr, | |
251 | &port_attr_phys_state.attr, | |
252 | NULL | |
253 | }; | |
254 | ||
255 | static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, | |
256 | char *buf) | |
257 | { | |
258 | struct port_table_attribute *tab_attr = | |
259 | container_of(attr, struct port_table_attribute, attr); | |
260 | union ib_gid gid; | |
261 | ssize_t ret; | |
262 | ||
263 | ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); | |
264 | if (ret) | |
265 | return ret; | |
266 | ||
267 | return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", | |
97f52eb4 SH |
268 | be16_to_cpu(((__be16 *) gid.raw)[0]), |
269 | be16_to_cpu(((__be16 *) gid.raw)[1]), | |
270 | be16_to_cpu(((__be16 *) gid.raw)[2]), | |
271 | be16_to_cpu(((__be16 *) gid.raw)[3]), | |
272 | be16_to_cpu(((__be16 *) gid.raw)[4]), | |
273 | be16_to_cpu(((__be16 *) gid.raw)[5]), | |
274 | be16_to_cpu(((__be16 *) gid.raw)[6]), | |
275 | be16_to_cpu(((__be16 *) gid.raw)[7])); | |
1da177e4 LT |
276 | } |
277 | ||
278 | static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr, | |
279 | char *buf) | |
280 | { | |
281 | struct port_table_attribute *tab_attr = | |
282 | container_of(attr, struct port_table_attribute, attr); | |
283 | u16 pkey; | |
284 | ssize_t ret; | |
285 | ||
286 | ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey); | |
287 | if (ret) | |
288 | return ret; | |
289 | ||
290 | return sprintf(buf, "0x%04x\n", pkey); | |
291 | } | |
292 | ||
293 | #define PORT_PMA_ATTR(_name, _counter, _width, _offset) \ | |
294 | struct port_table_attribute port_pma_attr_##_name = { \ | |
295 | .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ | |
296 | .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ | |
297 | } | |
298 | ||
299 | static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr, | |
300 | char *buf) | |
301 | { | |
302 | struct port_table_attribute *tab_attr = | |
303 | container_of(attr, struct port_table_attribute, attr); | |
304 | int offset = tab_attr->index & 0xffff; | |
305 | int width = (tab_attr->index >> 16) & 0xff; | |
306 | struct ib_mad *in_mad = NULL; | |
307 | struct ib_mad *out_mad = NULL; | |
308 | ssize_t ret; | |
309 | ||
310 | if (!p->ibdev->process_mad) | |
311 | return sprintf(buf, "N/A (no PMA)\n"); | |
312 | ||
de6eb66b | 313 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
856c52a7 | 314 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
1da177e4 LT |
315 | if (!in_mad || !out_mad) { |
316 | ret = -ENOMEM; | |
317 | goto out; | |
318 | } | |
319 | ||
1da177e4 LT |
320 | in_mad->mad_hdr.base_version = 1; |
321 | in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; | |
322 | in_mad->mad_hdr.class_version = 1; | |
323 | in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; | |
324 | in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ | |
325 | ||
326 | in_mad->data[41] = p->port_num; /* PortSelect field */ | |
327 | ||
328 | if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, | |
329 | p->port_num, NULL, NULL, in_mad, out_mad) & | |
330 | (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != | |
331 | (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { | |
332 | ret = -EINVAL; | |
333 | goto out; | |
334 | } | |
335 | ||
336 | switch (width) { | |
337 | case 4: | |
338 | ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> | |
d8b9f23b | 339 | (4 - (offset % 8))) & 0xf); |
1da177e4 LT |
340 | break; |
341 | case 8: | |
342 | ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); | |
343 | break; | |
344 | case 16: | |
345 | ret = sprintf(buf, "%u\n", | |
97f52eb4 | 346 | be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); |
1da177e4 LT |
347 | break; |
348 | case 32: | |
349 | ret = sprintf(buf, "%u\n", | |
97f52eb4 | 350 | be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); |
1da177e4 LT |
351 | break; |
352 | default: | |
353 | ret = 0; | |
354 | } | |
355 | ||
356 | out: | |
357 | kfree(in_mad); | |
358 | kfree(out_mad); | |
359 | ||
360 | return ret; | |
361 | } | |
362 | ||
363 | static PORT_PMA_ATTR(symbol_error , 0, 16, 32); | |
364 | static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); | |
365 | static PORT_PMA_ATTR(link_downed , 2, 8, 56); | |
366 | static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); | |
367 | static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); | |
368 | static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); | |
369 | static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); | |
370 | static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); | |
371 | static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); | |
372 | static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); | |
373 | static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); | |
374 | static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); | |
375 | static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); | |
376 | static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); | |
377 | static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); | |
378 | static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); | |
379 | ||
380 | static struct attribute *pma_attrs[] = { | |
381 | &port_pma_attr_symbol_error.attr.attr, | |
382 | &port_pma_attr_link_error_recovery.attr.attr, | |
383 | &port_pma_attr_link_downed.attr.attr, | |
384 | &port_pma_attr_port_rcv_errors.attr.attr, | |
385 | &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, | |
386 | &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, | |
387 | &port_pma_attr_port_xmit_discards.attr.attr, | |
388 | &port_pma_attr_port_xmit_constraint_errors.attr.attr, | |
389 | &port_pma_attr_port_rcv_constraint_errors.attr.attr, | |
390 | &port_pma_attr_local_link_integrity_errors.attr.attr, | |
391 | &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, | |
392 | &port_pma_attr_VL15_dropped.attr.attr, | |
393 | &port_pma_attr_port_xmit_data.attr.attr, | |
394 | &port_pma_attr_port_rcv_data.attr.attr, | |
395 | &port_pma_attr_port_xmit_packets.attr.attr, | |
396 | &port_pma_attr_port_rcv_packets.attr.attr, | |
397 | NULL | |
398 | }; | |
399 | ||
400 | static struct attribute_group pma_group = { | |
401 | .name = "counters", | |
402 | .attrs = pma_attrs | |
403 | }; | |
404 | ||
405 | static void ib_port_release(struct kobject *kobj) | |
406 | { | |
407 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); | |
408 | struct attribute *a; | |
409 | int i; | |
410 | ||
d48593bf | 411 | for (i = 0; (a = p->gid_group.attrs[i]); ++i) |
1da177e4 | 412 | kfree(a); |
1da177e4 | 413 | |
d48593bf DT |
414 | kfree(p->gid_group.attrs); |
415 | ||
416 | for (i = 0; (a = p->pkey_group.attrs[i]); ++i) | |
1da177e4 | 417 | kfree(a); |
1da177e4 | 418 | |
d48593bf DT |
419 | kfree(p->pkey_group.attrs); |
420 | ||
1da177e4 LT |
421 | kfree(p); |
422 | } | |
423 | ||
424 | static struct kobj_type port_type = { | |
425 | .release = ib_port_release, | |
426 | .sysfs_ops = &port_sysfs_ops, | |
427 | .default_attrs = port_default_attrs | |
428 | }; | |
429 | ||
430 | static void ib_device_release(struct class_device *cdev) | |
431 | { | |
432 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
433 | ||
434 | kfree(dev); | |
435 | } | |
436 | ||
7eff2e7a KS |
437 | static int ib_device_uevent(struct class_device *cdev, |
438 | struct kobj_uevent_env *env) | |
1da177e4 LT |
439 | { |
440 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
1da177e4 | 441 | |
7eff2e7a | 442 | if (add_uevent_var(env, "NAME=%s", dev->name)) |
1da177e4 LT |
443 | return -ENOMEM; |
444 | ||
445 | /* | |
cf311cd4 | 446 | * It would be nice to pass the node GUID with the event... |
1da177e4 LT |
447 | */ |
448 | ||
1da177e4 LT |
449 | return 0; |
450 | } | |
451 | ||
d48593bf DT |
452 | static struct attribute ** |
453 | alloc_group_attrs(ssize_t (*show)(struct ib_port *, | |
454 | struct port_attribute *, char *buf), | |
455 | int len) | |
1da177e4 | 456 | { |
d48593bf DT |
457 | struct attribute **tab_attr; |
458 | struct port_table_attribute *element; | |
1da177e4 | 459 | int i; |
1da177e4 | 460 | |
d48593bf DT |
461 | tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); |
462 | if (!tab_attr) | |
463 | return NULL; | |
1da177e4 | 464 | |
d48593bf | 465 | for (i = 0; i < len; i++) { |
82ca76b6 | 466 | element = kzalloc(sizeof(struct port_table_attribute), |
d48593bf DT |
467 | GFP_KERNEL); |
468 | if (!element) | |
1da177e4 | 469 | goto err; |
1da177e4 | 470 | |
d48593bf | 471 | if (snprintf(element->name, sizeof(element->name), |
048975ac RD |
472 | "%d", i) >= sizeof(element->name)) { |
473 | kfree(element); | |
1da177e4 | 474 | goto err; |
048975ac | 475 | } |
1da177e4 | 476 | |
d48593bf DT |
477 | element->attr.attr.name = element->name; |
478 | element->attr.attr.mode = S_IRUGO; | |
d48593bf DT |
479 | element->attr.show = show; |
480 | element->index = i; | |
1da177e4 | 481 | |
d48593bf | 482 | tab_attr[i] = &element->attr.attr; |
1da177e4 LT |
483 | } |
484 | ||
d48593bf | 485 | return tab_attr; |
1da177e4 | 486 | |
d48593bf DT |
487 | err: |
488 | while (--i >= 0) | |
489 | kfree(tab_attr[i]); | |
490 | kfree(tab_attr); | |
491 | return NULL; | |
1da177e4 LT |
492 | } |
493 | ||
494 | static int add_port(struct ib_device *device, int port_num) | |
495 | { | |
496 | struct ib_port *p; | |
497 | struct ib_port_attr attr; | |
498 | int i; | |
499 | int ret; | |
500 | ||
501 | ret = ib_query_port(device, port_num, &attr); | |
502 | if (ret) | |
503 | return ret; | |
504 | ||
de6eb66b | 505 | p = kzalloc(sizeof *p, GFP_KERNEL); |
1da177e4 LT |
506 | if (!p) |
507 | return -ENOMEM; | |
1da177e4 LT |
508 | |
509 | p->ibdev = device; | |
510 | p->port_num = port_num; | |
1da177e4 | 511 | |
35be0681 GKH |
512 | ret = kobject_init_and_add(&p->kobj, &port_type, |
513 | kobject_get(device->ports_parent), | |
514 | "%d", port_num); | |
1da177e4 LT |
515 | if (ret) |
516 | goto err_put; | |
517 | ||
518 | ret = sysfs_create_group(&p->kobj, &pma_group); | |
519 | if (ret) | |
520 | goto err_put; | |
521 | ||
1da177e4 | 522 | p->gid_group.name = "gids"; |
d48593bf DT |
523 | p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); |
524 | if (!p->gid_group.attrs) | |
525 | goto err_remove_pma; | |
1da177e4 LT |
526 | |
527 | ret = sysfs_create_group(&p->kobj, &p->gid_group); | |
528 | if (ret) | |
529 | goto err_free_gid; | |
530 | ||
1da177e4 | 531 | p->pkey_group.name = "pkeys"; |
d48593bf DT |
532 | p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, |
533 | attr.pkey_tbl_len); | |
534 | if (!p->pkey_group.attrs) | |
535 | goto err_remove_gid; | |
1da177e4 LT |
536 | |
537 | ret = sysfs_create_group(&p->kobj, &p->pkey_group); | |
538 | if (ret) | |
539 | goto err_free_pkey; | |
540 | ||
541 | list_add_tail(&p->kobj.entry, &device->port_list); | |
542 | ||
35be0681 | 543 | kobject_uevent(&p->kobj, KOBJ_ADD); |
1da177e4 LT |
544 | return 0; |
545 | ||
546 | err_free_pkey: | |
d48593bf DT |
547 | for (i = 0; i < attr.pkey_tbl_len; ++i) |
548 | kfree(p->pkey_group.attrs[i]); | |
1da177e4 | 549 | |
d48593bf | 550 | kfree(p->pkey_group.attrs); |
1da177e4 LT |
551 | |
552 | err_remove_gid: | |
553 | sysfs_remove_group(&p->kobj, &p->gid_group); | |
554 | ||
555 | err_free_gid: | |
d48593bf DT |
556 | for (i = 0; i < attr.gid_tbl_len; ++i) |
557 | kfree(p->gid_group.attrs[i]); | |
1da177e4 | 558 | |
d48593bf | 559 | kfree(p->gid_group.attrs); |
1da177e4 LT |
560 | |
561 | err_remove_pma: | |
562 | sysfs_remove_group(&p->kobj, &pma_group); | |
563 | ||
564 | err_put: | |
35be0681 | 565 | kobject_put(device->ports_parent); |
1da177e4 LT |
566 | kfree(p); |
567 | return ret; | |
568 | } | |
569 | ||
570 | static ssize_t show_node_type(struct class_device *cdev, char *buf) | |
571 | { | |
572 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
573 | ||
ba8e9310 RD |
574 | if (!ibdev_is_alive(dev)) |
575 | return -ENODEV; | |
576 | ||
1da177e4 | 577 | switch (dev->node_type) { |
07ebafba TT |
578 | case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); |
579 | case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); | |
580 | case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); | |
581 | case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); | |
582 | default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); | |
1da177e4 LT |
583 | } |
584 | } | |
585 | ||
586 | static ssize_t show_sys_image_guid(struct class_device *cdev, char *buf) | |
587 | { | |
588 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
589 | struct ib_device_attr attr; | |
590 | ssize_t ret; | |
591 | ||
ba8e9310 RD |
592 | if (!ibdev_is_alive(dev)) |
593 | return -ENODEV; | |
594 | ||
1da177e4 LT |
595 | ret = ib_query_device(dev, &attr); |
596 | if (ret) | |
597 | return ret; | |
598 | ||
599 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", | |
97f52eb4 SH |
600 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), |
601 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), | |
602 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), | |
603 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3])); | |
1da177e4 LT |
604 | } |
605 | ||
606 | static ssize_t show_node_guid(struct class_device *cdev, char *buf) | |
607 | { | |
608 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
1da177e4 | 609 | |
ba8e9310 RD |
610 | if (!ibdev_is_alive(dev)) |
611 | return -ENODEV; | |
612 | ||
1da177e4 | 613 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", |
cf311cd4 SH |
614 | be16_to_cpu(((__be16 *) &dev->node_guid)[0]), |
615 | be16_to_cpu(((__be16 *) &dev->node_guid)[1]), | |
616 | be16_to_cpu(((__be16 *) &dev->node_guid)[2]), | |
617 | be16_to_cpu(((__be16 *) &dev->node_guid)[3])); | |
1da177e4 LT |
618 | } |
619 | ||
c5bcbbb9 RD |
620 | static ssize_t show_node_desc(struct class_device *cdev, char *buf) |
621 | { | |
622 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
623 | ||
624 | return sprintf(buf, "%.64s\n", dev->node_desc); | |
625 | } | |
626 | ||
627 | static ssize_t set_node_desc(struct class_device *cdev, const char *buf, | |
628 | size_t count) | |
629 | { | |
630 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
631 | struct ib_device_modify desc = {}; | |
632 | int ret; | |
633 | ||
634 | if (!dev->modify_device) | |
635 | return -EIO; | |
636 | ||
637 | memcpy(desc.node_desc, buf, min_t(int, count, 64)); | |
638 | ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc); | |
639 | if (ret) | |
640 | return ret; | |
641 | ||
642 | return count; | |
643 | } | |
644 | ||
1da177e4 LT |
645 | static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); |
646 | static CLASS_DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); | |
647 | static CLASS_DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); | |
c5bcbbb9 RD |
648 | static CLASS_DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, |
649 | set_node_desc); | |
1da177e4 LT |
650 | |
651 | static struct class_device_attribute *ib_class_attributes[] = { | |
652 | &class_device_attr_node_type, | |
653 | &class_device_attr_sys_image_guid, | |
c5bcbbb9 RD |
654 | &class_device_attr_node_guid, |
655 | &class_device_attr_node_desc | |
1da177e4 LT |
656 | }; |
657 | ||
658 | static struct class ib_class = { | |
659 | .name = "infiniband", | |
660 | .release = ib_device_release, | |
312c004d | 661 | .uevent = ib_device_uevent, |
1da177e4 LT |
662 | }; |
663 | ||
664 | int ib_device_register_sysfs(struct ib_device *device) | |
665 | { | |
666 | struct class_device *class_dev = &device->class_dev; | |
667 | int ret; | |
668 | int i; | |
669 | ||
670 | class_dev->class = &ib_class; | |
671 | class_dev->class_data = device; | |
1912ffbb | 672 | class_dev->dev = device->dma_device; |
1da177e4 LT |
673 | strlcpy(class_dev->class_id, device->name, BUS_ID_SIZE); |
674 | ||
675 | INIT_LIST_HEAD(&device->port_list); | |
676 | ||
677 | ret = class_device_register(class_dev); | |
678 | if (ret) | |
679 | goto err; | |
680 | ||
681 | for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { | |
682 | ret = class_device_create_file(class_dev, ib_class_attributes[i]); | |
683 | if (ret) | |
684 | goto err_unregister; | |
685 | } | |
686 | ||
35be0681 GKH |
687 | device->ports_parent = kobject_create_and_add("ports", |
688 | kobject_get(&class_dev->kobj)); | |
689 | if (!device->ports_parent) | |
1da177e4 LT |
690 | goto err_put; |
691 | ||
07ebafba | 692 | if (device->node_type == RDMA_NODE_IB_SWITCH) { |
1da177e4 LT |
693 | ret = add_port(device, 0); |
694 | if (ret) | |
695 | goto err_put; | |
696 | } else { | |
1da177e4 LT |
697 | for (i = 1; i <= device->phys_port_cnt; ++i) { |
698 | ret = add_port(device, i); | |
699 | if (ret) | |
700 | goto err_put; | |
701 | } | |
702 | } | |
703 | ||
704 | return 0; | |
705 | ||
706 | err_put: | |
707 | { | |
708 | struct kobject *p, *t; | |
709 | struct ib_port *port; | |
710 | ||
711 | list_for_each_entry_safe(p, t, &device->port_list, entry) { | |
712 | list_del(&p->entry); | |
713 | port = container_of(p, struct ib_port, kobj); | |
714 | sysfs_remove_group(p, &pma_group); | |
715 | sysfs_remove_group(p, &port->pkey_group); | |
716 | sysfs_remove_group(p, &port->gid_group); | |
717 | kobject_unregister(p); | |
718 | } | |
719 | } | |
720 | ||
721 | kobject_put(&class_dev->kobj); | |
722 | ||
723 | err_unregister: | |
724 | class_device_unregister(class_dev); | |
725 | ||
726 | err: | |
727 | return ret; | |
728 | } | |
729 | ||
730 | void ib_device_unregister_sysfs(struct ib_device *device) | |
731 | { | |
732 | struct kobject *p, *t; | |
733 | struct ib_port *port; | |
734 | ||
735 | list_for_each_entry_safe(p, t, &device->port_list, entry) { | |
736 | list_del(&p->entry); | |
737 | port = container_of(p, struct ib_port, kobj); | |
738 | sysfs_remove_group(p, &pma_group); | |
739 | sysfs_remove_group(p, &port->pkey_group); | |
740 | sysfs_remove_group(p, &port->gid_group); | |
741 | kobject_unregister(p); | |
742 | } | |
743 | ||
35be0681 | 744 | kobject_unregister(device->ports_parent); |
1da177e4 LT |
745 | class_device_unregister(&device->class_dev); |
746 | } | |
747 | ||
748 | int ib_sysfs_setup(void) | |
749 | { | |
750 | return class_register(&ib_class); | |
751 | } | |
752 | ||
753 | void ib_sysfs_cleanup(void) | |
754 | { | |
755 | class_unregister(&ib_class); | |
756 | } |