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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. | |
1da177e4 LT |
33 | */ |
34 | ||
35 | #include "core_priv.h" | |
36 | ||
8c65b4a6 TS |
37 | #include <linux/slab.h> |
38 | #include <linux/string.h> | |
39 | ||
a4d61e84 | 40 | #include <rdma/ib_mad.h> |
1da177e4 LT |
41 | |
42 | struct ib_port { | |
43 | struct kobject kobj; | |
44 | struct ib_device *ibdev; | |
45 | struct attribute_group gid_group; | |
1da177e4 | 46 | struct attribute_group pkey_group; |
1da177e4 LT |
47 | u8 port_num; |
48 | }; | |
49 | ||
50 | struct port_attribute { | |
51 | struct attribute attr; | |
52 | ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf); | |
53 | ssize_t (*store)(struct ib_port *, struct port_attribute *, | |
54 | const char *buf, size_t count); | |
55 | }; | |
56 | ||
57 | #define PORT_ATTR(_name, _mode, _show, _store) \ | |
58 | struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store) | |
59 | ||
60 | #define PORT_ATTR_RO(_name) \ | |
61 | struct port_attribute port_attr_##_name = __ATTR_RO(_name) | |
62 | ||
63 | struct port_table_attribute { | |
d48593bf DT |
64 | struct port_attribute attr; |
65 | char name[8]; | |
66 | int index; | |
1da177e4 LT |
67 | }; |
68 | ||
3cd96564 | 69 | static inline int ibdev_is_alive(const struct ib_device *dev) |
ba8e9310 RD |
70 | { |
71 | return dev->reg_state == IB_DEV_REGISTERED; | |
72 | } | |
73 | ||
1da177e4 LT |
74 | static ssize_t port_attr_show(struct kobject *kobj, |
75 | struct attribute *attr, char *buf) | |
76 | { | |
77 | struct port_attribute *port_attr = | |
78 | container_of(attr, struct port_attribute, attr); | |
79 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); | |
80 | ||
81 | if (!port_attr->show) | |
70f2817a | 82 | return -EIO; |
ba8e9310 RD |
83 | if (!ibdev_is_alive(p->ibdev)) |
84 | return -ENODEV; | |
1da177e4 LT |
85 | |
86 | return port_attr->show(p, port_attr, buf); | |
87 | } | |
88 | ||
89 | static struct sysfs_ops port_sysfs_ops = { | |
90 | .show = port_attr_show | |
91 | }; | |
92 | ||
93 | static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, | |
94 | char *buf) | |
95 | { | |
96 | struct ib_port_attr attr; | |
97 | ssize_t ret; | |
98 | ||
99 | static const char *state_name[] = { | |
100 | [IB_PORT_NOP] = "NOP", | |
101 | [IB_PORT_DOWN] = "DOWN", | |
102 | [IB_PORT_INIT] = "INIT", | |
103 | [IB_PORT_ARMED] = "ARMED", | |
104 | [IB_PORT_ACTIVE] = "ACTIVE", | |
105 | [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" | |
106 | }; | |
107 | ||
108 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
109 | if (ret) | |
110 | return ret; | |
111 | ||
112 | return sprintf(buf, "%d: %s\n", attr.state, | |
048975ac | 113 | attr.state >= 0 && attr.state < ARRAY_SIZE(state_name) ? |
1da177e4 LT |
114 | state_name[attr.state] : "UNKNOWN"); |
115 | } | |
116 | ||
117 | static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, | |
118 | char *buf) | |
119 | { | |
120 | struct ib_port_attr attr; | |
121 | ssize_t ret; | |
122 | ||
123 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
124 | if (ret) | |
125 | return ret; | |
126 | ||
127 | return sprintf(buf, "0x%x\n", attr.lid); | |
128 | } | |
129 | ||
130 | static ssize_t lid_mask_count_show(struct ib_port *p, | |
131 | struct port_attribute *unused, | |
132 | char *buf) | |
133 | { | |
134 | struct ib_port_attr attr; | |
135 | ssize_t ret; | |
136 | ||
137 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
138 | if (ret) | |
139 | return ret; | |
140 | ||
141 | return sprintf(buf, "%d\n", attr.lmc); | |
142 | } | |
143 | ||
144 | static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, | |
145 | char *buf) | |
146 | { | |
147 | struct ib_port_attr attr; | |
148 | ssize_t ret; | |
149 | ||
150 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
151 | if (ret) | |
152 | return ret; | |
153 | ||
154 | return sprintf(buf, "0x%x\n", attr.sm_lid); | |
155 | } | |
156 | ||
157 | static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, | |
158 | char *buf) | |
159 | { | |
160 | struct ib_port_attr attr; | |
161 | ssize_t ret; | |
162 | ||
163 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
164 | if (ret) | |
165 | return ret; | |
166 | ||
167 | return sprintf(buf, "%d\n", attr.sm_sl); | |
168 | } | |
169 | ||
170 | static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, | |
171 | char *buf) | |
172 | { | |
173 | struct ib_port_attr attr; | |
174 | ssize_t ret; | |
175 | ||
176 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
177 | if (ret) | |
178 | return ret; | |
179 | ||
180 | return sprintf(buf, "0x%08x\n", attr.port_cap_flags); | |
181 | } | |
182 | ||
183 | static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, | |
184 | char *buf) | |
185 | { | |
186 | struct ib_port_attr attr; | |
187 | char *speed = ""; | |
188 | int rate; | |
189 | ssize_t ret; | |
190 | ||
191 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
192 | if (ret) | |
193 | return ret; | |
194 | ||
195 | switch (attr.active_speed) { | |
196 | case 2: speed = " DDR"; break; | |
197 | case 4: speed = " QDR"; break; | |
198 | } | |
199 | ||
200 | rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; | |
201 | if (rate < 0) | |
202 | return -EINVAL; | |
203 | ||
204 | return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", | |
205 | rate / 10, rate % 10 ? ".5" : "", | |
206 | ib_width_enum_to_int(attr.active_width), speed); | |
207 | } | |
208 | ||
209 | static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, | |
210 | char *buf) | |
211 | { | |
212 | struct ib_port_attr attr; | |
213 | ||
214 | ssize_t ret; | |
215 | ||
216 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
217 | if (ret) | |
218 | return ret; | |
219 | ||
220 | switch (attr.phys_state) { | |
221 | case 1: return sprintf(buf, "1: Sleep\n"); | |
222 | case 2: return sprintf(buf, "2: Polling\n"); | |
223 | case 3: return sprintf(buf, "3: Disabled\n"); | |
224 | case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); | |
225 | case 5: return sprintf(buf, "5: LinkUp\n"); | |
226 | case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); | |
227 | case 7: return sprintf(buf, "7: Phy Test\n"); | |
228 | default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); | |
229 | } | |
230 | } | |
231 | ||
232 | static PORT_ATTR_RO(state); | |
233 | static PORT_ATTR_RO(lid); | |
234 | static PORT_ATTR_RO(lid_mask_count); | |
235 | static PORT_ATTR_RO(sm_lid); | |
236 | static PORT_ATTR_RO(sm_sl); | |
237 | static PORT_ATTR_RO(cap_mask); | |
238 | static PORT_ATTR_RO(rate); | |
239 | static PORT_ATTR_RO(phys_state); | |
240 | ||
241 | static struct attribute *port_default_attrs[] = { | |
242 | &port_attr_state.attr, | |
243 | &port_attr_lid.attr, | |
244 | &port_attr_lid_mask_count.attr, | |
245 | &port_attr_sm_lid.attr, | |
246 | &port_attr_sm_sl.attr, | |
247 | &port_attr_cap_mask.attr, | |
248 | &port_attr_rate.attr, | |
249 | &port_attr_phys_state.attr, | |
250 | NULL | |
251 | }; | |
252 | ||
253 | static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, | |
254 | char *buf) | |
255 | { | |
256 | struct port_table_attribute *tab_attr = | |
257 | container_of(attr, struct port_table_attribute, attr); | |
258 | union ib_gid gid; | |
259 | ssize_t ret; | |
260 | ||
261 | ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); | |
262 | if (ret) | |
263 | return ret; | |
264 | ||
265 | return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", | |
97f52eb4 SH |
266 | be16_to_cpu(((__be16 *) gid.raw)[0]), |
267 | be16_to_cpu(((__be16 *) gid.raw)[1]), | |
268 | be16_to_cpu(((__be16 *) gid.raw)[2]), | |
269 | be16_to_cpu(((__be16 *) gid.raw)[3]), | |
270 | be16_to_cpu(((__be16 *) gid.raw)[4]), | |
271 | be16_to_cpu(((__be16 *) gid.raw)[5]), | |
272 | be16_to_cpu(((__be16 *) gid.raw)[6]), | |
273 | be16_to_cpu(((__be16 *) gid.raw)[7])); | |
1da177e4 LT |
274 | } |
275 | ||
276 | static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr, | |
277 | char *buf) | |
278 | { | |
279 | struct port_table_attribute *tab_attr = | |
280 | container_of(attr, struct port_table_attribute, attr); | |
281 | u16 pkey; | |
282 | ssize_t ret; | |
283 | ||
284 | ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey); | |
285 | if (ret) | |
286 | return ret; | |
287 | ||
288 | return sprintf(buf, "0x%04x\n", pkey); | |
289 | } | |
290 | ||
291 | #define PORT_PMA_ATTR(_name, _counter, _width, _offset) \ | |
292 | struct port_table_attribute port_pma_attr_##_name = { \ | |
293 | .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ | |
294 | .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ | |
295 | } | |
296 | ||
297 | static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr, | |
298 | char *buf) | |
299 | { | |
300 | struct port_table_attribute *tab_attr = | |
301 | container_of(attr, struct port_table_attribute, attr); | |
302 | int offset = tab_attr->index & 0xffff; | |
303 | int width = (tab_attr->index >> 16) & 0xff; | |
304 | struct ib_mad *in_mad = NULL; | |
305 | struct ib_mad *out_mad = NULL; | |
306 | ssize_t ret; | |
307 | ||
308 | if (!p->ibdev->process_mad) | |
309 | return sprintf(buf, "N/A (no PMA)\n"); | |
310 | ||
de6eb66b | 311 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
856c52a7 | 312 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
1da177e4 LT |
313 | if (!in_mad || !out_mad) { |
314 | ret = -ENOMEM; | |
315 | goto out; | |
316 | } | |
317 | ||
1da177e4 LT |
318 | in_mad->mad_hdr.base_version = 1; |
319 | in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; | |
320 | in_mad->mad_hdr.class_version = 1; | |
321 | in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; | |
322 | in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ | |
323 | ||
324 | in_mad->data[41] = p->port_num; /* PortSelect field */ | |
325 | ||
326 | if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, | |
327 | p->port_num, NULL, NULL, in_mad, out_mad) & | |
328 | (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != | |
329 | (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { | |
330 | ret = -EINVAL; | |
331 | goto out; | |
332 | } | |
333 | ||
334 | switch (width) { | |
335 | case 4: | |
336 | ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> | |
d8b9f23b | 337 | (4 - (offset % 8))) & 0xf); |
1da177e4 LT |
338 | break; |
339 | case 8: | |
340 | ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); | |
341 | break; | |
342 | case 16: | |
343 | ret = sprintf(buf, "%u\n", | |
97f52eb4 | 344 | be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); |
1da177e4 LT |
345 | break; |
346 | case 32: | |
347 | ret = sprintf(buf, "%u\n", | |
97f52eb4 | 348 | be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); |
1da177e4 LT |
349 | break; |
350 | default: | |
351 | ret = 0; | |
352 | } | |
353 | ||
354 | out: | |
355 | kfree(in_mad); | |
356 | kfree(out_mad); | |
357 | ||
358 | return ret; | |
359 | } | |
360 | ||
361 | static PORT_PMA_ATTR(symbol_error , 0, 16, 32); | |
362 | static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); | |
363 | static PORT_PMA_ATTR(link_downed , 2, 8, 56); | |
364 | static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); | |
365 | static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); | |
366 | static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); | |
367 | static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); | |
368 | static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); | |
369 | static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); | |
370 | static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); | |
371 | static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); | |
372 | static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); | |
373 | static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); | |
374 | static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); | |
375 | static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); | |
376 | static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); | |
377 | ||
378 | static struct attribute *pma_attrs[] = { | |
379 | &port_pma_attr_symbol_error.attr.attr, | |
380 | &port_pma_attr_link_error_recovery.attr.attr, | |
381 | &port_pma_attr_link_downed.attr.attr, | |
382 | &port_pma_attr_port_rcv_errors.attr.attr, | |
383 | &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, | |
384 | &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, | |
385 | &port_pma_attr_port_xmit_discards.attr.attr, | |
386 | &port_pma_attr_port_xmit_constraint_errors.attr.attr, | |
387 | &port_pma_attr_port_rcv_constraint_errors.attr.attr, | |
388 | &port_pma_attr_local_link_integrity_errors.attr.attr, | |
389 | &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, | |
390 | &port_pma_attr_VL15_dropped.attr.attr, | |
391 | &port_pma_attr_port_xmit_data.attr.attr, | |
392 | &port_pma_attr_port_rcv_data.attr.attr, | |
393 | &port_pma_attr_port_xmit_packets.attr.attr, | |
394 | &port_pma_attr_port_rcv_packets.attr.attr, | |
395 | NULL | |
396 | }; | |
397 | ||
398 | static struct attribute_group pma_group = { | |
399 | .name = "counters", | |
400 | .attrs = pma_attrs | |
401 | }; | |
402 | ||
403 | static void ib_port_release(struct kobject *kobj) | |
404 | { | |
405 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); | |
406 | struct attribute *a; | |
407 | int i; | |
408 | ||
d48593bf | 409 | for (i = 0; (a = p->gid_group.attrs[i]); ++i) |
1da177e4 | 410 | kfree(a); |
1da177e4 | 411 | |
d48593bf DT |
412 | kfree(p->gid_group.attrs); |
413 | ||
414 | for (i = 0; (a = p->pkey_group.attrs[i]); ++i) | |
1da177e4 | 415 | kfree(a); |
1da177e4 | 416 | |
d48593bf DT |
417 | kfree(p->pkey_group.attrs); |
418 | ||
1da177e4 LT |
419 | kfree(p); |
420 | } | |
421 | ||
422 | static struct kobj_type port_type = { | |
423 | .release = ib_port_release, | |
424 | .sysfs_ops = &port_sysfs_ops, | |
425 | .default_attrs = port_default_attrs | |
426 | }; | |
427 | ||
f4e91eb4 | 428 | static void ib_device_release(struct device *device) |
1da177e4 | 429 | { |
f4e91eb4 | 430 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 LT |
431 | |
432 | kfree(dev); | |
433 | } | |
434 | ||
f4e91eb4 | 435 | static int ib_device_uevent(struct device *device, |
7eff2e7a | 436 | struct kobj_uevent_env *env) |
1da177e4 | 437 | { |
f4e91eb4 | 438 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 | 439 | |
7eff2e7a | 440 | if (add_uevent_var(env, "NAME=%s", dev->name)) |
1da177e4 LT |
441 | return -ENOMEM; |
442 | ||
443 | /* | |
cf311cd4 | 444 | * It would be nice to pass the node GUID with the event... |
1da177e4 LT |
445 | */ |
446 | ||
1da177e4 LT |
447 | return 0; |
448 | } | |
449 | ||
d48593bf DT |
450 | static struct attribute ** |
451 | alloc_group_attrs(ssize_t (*show)(struct ib_port *, | |
452 | struct port_attribute *, char *buf), | |
453 | int len) | |
1da177e4 | 454 | { |
d48593bf DT |
455 | struct attribute **tab_attr; |
456 | struct port_table_attribute *element; | |
1da177e4 | 457 | int i; |
1da177e4 | 458 | |
d48593bf DT |
459 | tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); |
460 | if (!tab_attr) | |
461 | return NULL; | |
1da177e4 | 462 | |
d48593bf | 463 | for (i = 0; i < len; i++) { |
82ca76b6 | 464 | element = kzalloc(sizeof(struct port_table_attribute), |
d48593bf DT |
465 | GFP_KERNEL); |
466 | if (!element) | |
1da177e4 | 467 | goto err; |
1da177e4 | 468 | |
d48593bf | 469 | if (snprintf(element->name, sizeof(element->name), |
048975ac RD |
470 | "%d", i) >= sizeof(element->name)) { |
471 | kfree(element); | |
1da177e4 | 472 | goto err; |
048975ac | 473 | } |
1da177e4 | 474 | |
d48593bf DT |
475 | element->attr.attr.name = element->name; |
476 | element->attr.attr.mode = S_IRUGO; | |
d48593bf DT |
477 | element->attr.show = show; |
478 | element->index = i; | |
1da177e4 | 479 | |
d48593bf | 480 | tab_attr[i] = &element->attr.attr; |
1da177e4 LT |
481 | } |
482 | ||
d48593bf | 483 | return tab_attr; |
1da177e4 | 484 | |
d48593bf DT |
485 | err: |
486 | while (--i >= 0) | |
487 | kfree(tab_attr[i]); | |
488 | kfree(tab_attr); | |
489 | return NULL; | |
1da177e4 LT |
490 | } |
491 | ||
492 | static int add_port(struct ib_device *device, int port_num) | |
493 | { | |
494 | struct ib_port *p; | |
495 | struct ib_port_attr attr; | |
496 | int i; | |
497 | int ret; | |
498 | ||
499 | ret = ib_query_port(device, port_num, &attr); | |
500 | if (ret) | |
501 | return ret; | |
502 | ||
de6eb66b | 503 | p = kzalloc(sizeof *p, GFP_KERNEL); |
1da177e4 LT |
504 | if (!p) |
505 | return -ENOMEM; | |
1da177e4 LT |
506 | |
507 | p->ibdev = device; | |
508 | p->port_num = port_num; | |
1da177e4 | 509 | |
35be0681 GKH |
510 | ret = kobject_init_and_add(&p->kobj, &port_type, |
511 | kobject_get(device->ports_parent), | |
512 | "%d", port_num); | |
1da177e4 LT |
513 | if (ret) |
514 | goto err_put; | |
515 | ||
516 | ret = sysfs_create_group(&p->kobj, &pma_group); | |
517 | if (ret) | |
518 | goto err_put; | |
519 | ||
1da177e4 | 520 | p->gid_group.name = "gids"; |
d48593bf DT |
521 | p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); |
522 | if (!p->gid_group.attrs) | |
523 | goto err_remove_pma; | |
1da177e4 LT |
524 | |
525 | ret = sysfs_create_group(&p->kobj, &p->gid_group); | |
526 | if (ret) | |
527 | goto err_free_gid; | |
528 | ||
1da177e4 | 529 | p->pkey_group.name = "pkeys"; |
d48593bf DT |
530 | p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, |
531 | attr.pkey_tbl_len); | |
532 | if (!p->pkey_group.attrs) | |
533 | goto err_remove_gid; | |
1da177e4 LT |
534 | |
535 | ret = sysfs_create_group(&p->kobj, &p->pkey_group); | |
536 | if (ret) | |
537 | goto err_free_pkey; | |
538 | ||
539 | list_add_tail(&p->kobj.entry, &device->port_list); | |
540 | ||
35be0681 | 541 | kobject_uevent(&p->kobj, KOBJ_ADD); |
1da177e4 LT |
542 | return 0; |
543 | ||
544 | err_free_pkey: | |
d48593bf DT |
545 | for (i = 0; i < attr.pkey_tbl_len; ++i) |
546 | kfree(p->pkey_group.attrs[i]); | |
1da177e4 | 547 | |
d48593bf | 548 | kfree(p->pkey_group.attrs); |
1da177e4 LT |
549 | |
550 | err_remove_gid: | |
551 | sysfs_remove_group(&p->kobj, &p->gid_group); | |
552 | ||
553 | err_free_gid: | |
d48593bf DT |
554 | for (i = 0; i < attr.gid_tbl_len; ++i) |
555 | kfree(p->gid_group.attrs[i]); | |
1da177e4 | 556 | |
d48593bf | 557 | kfree(p->gid_group.attrs); |
1da177e4 LT |
558 | |
559 | err_remove_pma: | |
560 | sysfs_remove_group(&p->kobj, &pma_group); | |
561 | ||
562 | err_put: | |
35be0681 | 563 | kobject_put(device->ports_parent); |
1da177e4 LT |
564 | kfree(p); |
565 | return ret; | |
566 | } | |
567 | ||
f4e91eb4 TJ |
568 | static ssize_t show_node_type(struct device *device, |
569 | struct device_attribute *attr, char *buf) | |
1da177e4 | 570 | { |
f4e91eb4 | 571 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 | 572 | |
ba8e9310 RD |
573 | if (!ibdev_is_alive(dev)) |
574 | return -ENODEV; | |
575 | ||
1da177e4 | 576 | switch (dev->node_type) { |
07ebafba TT |
577 | case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); |
578 | case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); | |
579 | case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); | |
580 | case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); | |
581 | default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); | |
1da177e4 LT |
582 | } |
583 | } | |
584 | ||
f4e91eb4 TJ |
585 | static ssize_t show_sys_image_guid(struct device *device, |
586 | struct device_attribute *dev_attr, char *buf) | |
1da177e4 | 587 | { |
f4e91eb4 | 588 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 LT |
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 | ||
f4e91eb4 TJ |
606 | static ssize_t show_node_guid(struct device *device, |
607 | struct device_attribute *attr, char *buf) | |
1da177e4 | 608 | { |
f4e91eb4 | 609 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 | 610 | |
ba8e9310 RD |
611 | if (!ibdev_is_alive(dev)) |
612 | return -ENODEV; | |
613 | ||
1da177e4 | 614 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", |
cf311cd4 SH |
615 | be16_to_cpu(((__be16 *) &dev->node_guid)[0]), |
616 | be16_to_cpu(((__be16 *) &dev->node_guid)[1]), | |
617 | be16_to_cpu(((__be16 *) &dev->node_guid)[2]), | |
618 | be16_to_cpu(((__be16 *) &dev->node_guid)[3])); | |
1da177e4 LT |
619 | } |
620 | ||
f4e91eb4 TJ |
621 | static ssize_t show_node_desc(struct device *device, |
622 | struct device_attribute *attr, char *buf) | |
c5bcbbb9 | 623 | { |
f4e91eb4 | 624 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
c5bcbbb9 RD |
625 | |
626 | return sprintf(buf, "%.64s\n", dev->node_desc); | |
627 | } | |
628 | ||
f4e91eb4 TJ |
629 | static ssize_t set_node_desc(struct device *device, |
630 | struct device_attribute *attr, | |
631 | const char *buf, size_t count) | |
c5bcbbb9 | 632 | { |
f4e91eb4 | 633 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
c5bcbbb9 RD |
634 | struct ib_device_modify desc = {}; |
635 | int ret; | |
636 | ||
637 | if (!dev->modify_device) | |
638 | return -EIO; | |
639 | ||
640 | memcpy(desc.node_desc, buf, min_t(int, count, 64)); | |
641 | ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc); | |
642 | if (ret) | |
643 | return ret; | |
644 | ||
645 | return count; | |
646 | } | |
647 | ||
f4e91eb4 TJ |
648 | static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); |
649 | static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); | |
650 | static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); | |
651 | static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc); | |
652 | ||
653 | static struct device_attribute *ib_class_attributes[] = { | |
654 | &dev_attr_node_type, | |
655 | &dev_attr_sys_image_guid, | |
656 | &dev_attr_node_guid, | |
657 | &dev_attr_node_desc | |
1da177e4 LT |
658 | }; |
659 | ||
660 | static struct class ib_class = { | |
661 | .name = "infiniband", | |
f4e91eb4 TJ |
662 | .dev_release = ib_device_release, |
663 | .dev_uevent = ib_device_uevent, | |
1da177e4 LT |
664 | }; |
665 | ||
666 | int ib_device_register_sysfs(struct ib_device *device) | |
667 | { | |
f4e91eb4 | 668 | struct device *class_dev = &device->dev; |
1da177e4 LT |
669 | int ret; |
670 | int i; | |
671 | ||
672 | class_dev->class = &ib_class; | |
f4e91eb4 TJ |
673 | class_dev->driver_data = device; |
674 | class_dev->parent = device->dma_device; | |
675 | strlcpy(class_dev->bus_id, device->name, BUS_ID_SIZE); | |
1da177e4 LT |
676 | |
677 | INIT_LIST_HEAD(&device->port_list); | |
678 | ||
f4e91eb4 | 679 | ret = device_register(class_dev); |
1da177e4 LT |
680 | if (ret) |
681 | goto err; | |
682 | ||
683 | for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { | |
f4e91eb4 | 684 | ret = device_create_file(class_dev, ib_class_attributes[i]); |
1da177e4 LT |
685 | if (ret) |
686 | goto err_unregister; | |
687 | } | |
688 | ||
35be0681 GKH |
689 | device->ports_parent = kobject_create_and_add("ports", |
690 | kobject_get(&class_dev->kobj)); | |
c7482b81 LZ |
691 | if (!device->ports_parent) { |
692 | ret = -ENOMEM; | |
1da177e4 | 693 | goto err_put; |
c7482b81 | 694 | } |
1da177e4 | 695 | |
07ebafba | 696 | if (device->node_type == RDMA_NODE_IB_SWITCH) { |
1da177e4 LT |
697 | ret = add_port(device, 0); |
698 | if (ret) | |
699 | goto err_put; | |
700 | } else { | |
1da177e4 LT |
701 | for (i = 1; i <= device->phys_port_cnt; ++i) { |
702 | ret = add_port(device, i); | |
703 | if (ret) | |
704 | goto err_put; | |
705 | } | |
706 | } | |
707 | ||
708 | return 0; | |
709 | ||
710 | err_put: | |
711 | { | |
712 | struct kobject *p, *t; | |
713 | struct ib_port *port; | |
714 | ||
715 | list_for_each_entry_safe(p, t, &device->port_list, entry) { | |
716 | list_del(&p->entry); | |
717 | port = container_of(p, struct ib_port, kobj); | |
718 | sysfs_remove_group(p, &pma_group); | |
719 | sysfs_remove_group(p, &port->pkey_group); | |
720 | sysfs_remove_group(p, &port->gid_group); | |
c10997f6 | 721 | kobject_put(p); |
1da177e4 LT |
722 | } |
723 | } | |
724 | ||
725 | kobject_put(&class_dev->kobj); | |
726 | ||
727 | err_unregister: | |
f4e91eb4 | 728 | device_unregister(class_dev); |
1da177e4 LT |
729 | |
730 | err: | |
731 | return ret; | |
732 | } | |
733 | ||
734 | void ib_device_unregister_sysfs(struct ib_device *device) | |
735 | { | |
736 | struct kobject *p, *t; | |
737 | struct ib_port *port; | |
738 | ||
739 | list_for_each_entry_safe(p, t, &device->port_list, entry) { | |
740 | list_del(&p->entry); | |
741 | port = container_of(p, struct ib_port, kobj); | |
742 | sysfs_remove_group(p, &pma_group); | |
743 | sysfs_remove_group(p, &port->pkey_group); | |
744 | sysfs_remove_group(p, &port->gid_group); | |
c10997f6 | 745 | kobject_put(p); |
1da177e4 LT |
746 | } |
747 | ||
c10997f6 | 748 | kobject_put(device->ports_parent); |
f4e91eb4 | 749 | device_unregister(&device->dev); |
1da177e4 LT |
750 | } |
751 | ||
752 | int ib_sysfs_setup(void) | |
753 | { | |
754 | return class_register(&ib_class); | |
755 | } | |
756 | ||
757 | void ib_sysfs_cleanup(void) | |
758 | { | |
759 | class_unregister(&ib_class); | |
760 | } |