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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 | ||
39 | #include <ib_mad.h> | |
40 | ||
41 | struct ib_port { | |
42 | struct kobject kobj; | |
43 | struct ib_device *ibdev; | |
44 | struct attribute_group gid_group; | |
1da177e4 | 45 | struct attribute_group pkey_group; |
1da177e4 LT |
46 | u8 port_num; |
47 | }; | |
48 | ||
49 | struct port_attribute { | |
50 | struct attribute attr; | |
51 | ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf); | |
52 | ssize_t (*store)(struct ib_port *, struct port_attribute *, | |
53 | const char *buf, size_t count); | |
54 | }; | |
55 | ||
56 | #define PORT_ATTR(_name, _mode, _show, _store) \ | |
57 | struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store) | |
58 | ||
59 | #define PORT_ATTR_RO(_name) \ | |
60 | struct port_attribute port_attr_##_name = __ATTR_RO(_name) | |
61 | ||
62 | struct port_table_attribute { | |
d48593bf DT |
63 | struct port_attribute attr; |
64 | char name[8]; | |
65 | int index; | |
1da177e4 LT |
66 | }; |
67 | ||
68 | static ssize_t port_attr_show(struct kobject *kobj, | |
69 | struct attribute *attr, char *buf) | |
70 | { | |
71 | struct port_attribute *port_attr = | |
72 | container_of(attr, struct port_attribute, attr); | |
73 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); | |
74 | ||
75 | if (!port_attr->show) | |
70f2817a | 76 | return -EIO; |
1da177e4 LT |
77 | |
78 | return port_attr->show(p, port_attr, buf); | |
79 | } | |
80 | ||
81 | static struct sysfs_ops port_sysfs_ops = { | |
82 | .show = port_attr_show | |
83 | }; | |
84 | ||
85 | static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, | |
86 | char *buf) | |
87 | { | |
88 | struct ib_port_attr attr; | |
89 | ssize_t ret; | |
90 | ||
91 | static const char *state_name[] = { | |
92 | [IB_PORT_NOP] = "NOP", | |
93 | [IB_PORT_DOWN] = "DOWN", | |
94 | [IB_PORT_INIT] = "INIT", | |
95 | [IB_PORT_ARMED] = "ARMED", | |
96 | [IB_PORT_ACTIVE] = "ACTIVE", | |
97 | [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" | |
98 | }; | |
99 | ||
100 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
101 | if (ret) | |
102 | return ret; | |
103 | ||
104 | return sprintf(buf, "%d: %s\n", attr.state, | |
105 | attr.state >= 0 && attr.state <= ARRAY_SIZE(state_name) ? | |
106 | state_name[attr.state] : "UNKNOWN"); | |
107 | } | |
108 | ||
109 | static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, | |
110 | char *buf) | |
111 | { | |
112 | struct ib_port_attr attr; | |
113 | ssize_t ret; | |
114 | ||
115 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
116 | if (ret) | |
117 | return ret; | |
118 | ||
119 | return sprintf(buf, "0x%x\n", attr.lid); | |
120 | } | |
121 | ||
122 | static ssize_t lid_mask_count_show(struct ib_port *p, | |
123 | struct port_attribute *unused, | |
124 | char *buf) | |
125 | { | |
126 | struct ib_port_attr attr; | |
127 | ssize_t ret; | |
128 | ||
129 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
130 | if (ret) | |
131 | return ret; | |
132 | ||
133 | return sprintf(buf, "%d\n", attr.lmc); | |
134 | } | |
135 | ||
136 | static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, | |
137 | char *buf) | |
138 | { | |
139 | struct ib_port_attr attr; | |
140 | ssize_t ret; | |
141 | ||
142 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
143 | if (ret) | |
144 | return ret; | |
145 | ||
146 | return sprintf(buf, "0x%x\n", attr.sm_lid); | |
147 | } | |
148 | ||
149 | static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, | |
150 | char *buf) | |
151 | { | |
152 | struct ib_port_attr attr; | |
153 | ssize_t ret; | |
154 | ||
155 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
156 | if (ret) | |
157 | return ret; | |
158 | ||
159 | return sprintf(buf, "%d\n", attr.sm_sl); | |
160 | } | |
161 | ||
162 | static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, | |
163 | char *buf) | |
164 | { | |
165 | struct ib_port_attr attr; | |
166 | ssize_t ret; | |
167 | ||
168 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
169 | if (ret) | |
170 | return ret; | |
171 | ||
172 | return sprintf(buf, "0x%08x\n", attr.port_cap_flags); | |
173 | } | |
174 | ||
175 | static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, | |
176 | char *buf) | |
177 | { | |
178 | struct ib_port_attr attr; | |
179 | char *speed = ""; | |
180 | int rate; | |
181 | ssize_t ret; | |
182 | ||
183 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
184 | if (ret) | |
185 | return ret; | |
186 | ||
187 | switch (attr.active_speed) { | |
188 | case 2: speed = " DDR"; break; | |
189 | case 4: speed = " QDR"; break; | |
190 | } | |
191 | ||
192 | rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; | |
193 | if (rate < 0) | |
194 | return -EINVAL; | |
195 | ||
196 | return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", | |
197 | rate / 10, rate % 10 ? ".5" : "", | |
198 | ib_width_enum_to_int(attr.active_width), speed); | |
199 | } | |
200 | ||
201 | static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, | |
202 | char *buf) | |
203 | { | |
204 | struct ib_port_attr attr; | |
205 | ||
206 | ssize_t ret; | |
207 | ||
208 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
209 | if (ret) | |
210 | return ret; | |
211 | ||
212 | switch (attr.phys_state) { | |
213 | case 1: return sprintf(buf, "1: Sleep\n"); | |
214 | case 2: return sprintf(buf, "2: Polling\n"); | |
215 | case 3: return sprintf(buf, "3: Disabled\n"); | |
216 | case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); | |
217 | case 5: return sprintf(buf, "5: LinkUp\n"); | |
218 | case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); | |
219 | case 7: return sprintf(buf, "7: Phy Test\n"); | |
220 | default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); | |
221 | } | |
222 | } | |
223 | ||
224 | static PORT_ATTR_RO(state); | |
225 | static PORT_ATTR_RO(lid); | |
226 | static PORT_ATTR_RO(lid_mask_count); | |
227 | static PORT_ATTR_RO(sm_lid); | |
228 | static PORT_ATTR_RO(sm_sl); | |
229 | static PORT_ATTR_RO(cap_mask); | |
230 | static PORT_ATTR_RO(rate); | |
231 | static PORT_ATTR_RO(phys_state); | |
232 | ||
233 | static struct attribute *port_default_attrs[] = { | |
234 | &port_attr_state.attr, | |
235 | &port_attr_lid.attr, | |
236 | &port_attr_lid_mask_count.attr, | |
237 | &port_attr_sm_lid.attr, | |
238 | &port_attr_sm_sl.attr, | |
239 | &port_attr_cap_mask.attr, | |
240 | &port_attr_rate.attr, | |
241 | &port_attr_phys_state.attr, | |
242 | NULL | |
243 | }; | |
244 | ||
245 | static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, | |
246 | char *buf) | |
247 | { | |
248 | struct port_table_attribute *tab_attr = | |
249 | container_of(attr, struct port_table_attribute, attr); | |
250 | union ib_gid gid; | |
251 | ssize_t ret; | |
252 | ||
253 | ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); | |
254 | if (ret) | |
255 | return ret; | |
256 | ||
257 | return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", | |
97f52eb4 SH |
258 | be16_to_cpu(((__be16 *) gid.raw)[0]), |
259 | be16_to_cpu(((__be16 *) gid.raw)[1]), | |
260 | be16_to_cpu(((__be16 *) gid.raw)[2]), | |
261 | be16_to_cpu(((__be16 *) gid.raw)[3]), | |
262 | be16_to_cpu(((__be16 *) gid.raw)[4]), | |
263 | be16_to_cpu(((__be16 *) gid.raw)[5]), | |
264 | be16_to_cpu(((__be16 *) gid.raw)[6]), | |
265 | be16_to_cpu(((__be16 *) gid.raw)[7])); | |
1da177e4 LT |
266 | } |
267 | ||
268 | static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr, | |
269 | char *buf) | |
270 | { | |
271 | struct port_table_attribute *tab_attr = | |
272 | container_of(attr, struct port_table_attribute, attr); | |
273 | u16 pkey; | |
274 | ssize_t ret; | |
275 | ||
276 | ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey); | |
277 | if (ret) | |
278 | return ret; | |
279 | ||
280 | return sprintf(buf, "0x%04x\n", pkey); | |
281 | } | |
282 | ||
283 | #define PORT_PMA_ATTR(_name, _counter, _width, _offset) \ | |
284 | struct port_table_attribute port_pma_attr_##_name = { \ | |
285 | .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ | |
286 | .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ | |
287 | } | |
288 | ||
289 | static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr, | |
290 | char *buf) | |
291 | { | |
292 | struct port_table_attribute *tab_attr = | |
293 | container_of(attr, struct port_table_attribute, attr); | |
294 | int offset = tab_attr->index & 0xffff; | |
295 | int width = (tab_attr->index >> 16) & 0xff; | |
296 | struct ib_mad *in_mad = NULL; | |
297 | struct ib_mad *out_mad = NULL; | |
298 | ssize_t ret; | |
299 | ||
300 | if (!p->ibdev->process_mad) | |
301 | return sprintf(buf, "N/A (no PMA)\n"); | |
302 | ||
303 | in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); | |
304 | out_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); | |
305 | if (!in_mad || !out_mad) { | |
306 | ret = -ENOMEM; | |
307 | goto out; | |
308 | } | |
309 | ||
310 | memset(in_mad, 0, sizeof *in_mad); | |
311 | in_mad->mad_hdr.base_version = 1; | |
312 | in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; | |
313 | in_mad->mad_hdr.class_version = 1; | |
314 | in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; | |
315 | in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ | |
316 | ||
317 | in_mad->data[41] = p->port_num; /* PortSelect field */ | |
318 | ||
319 | if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, | |
320 | p->port_num, NULL, NULL, in_mad, out_mad) & | |
321 | (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != | |
322 | (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { | |
323 | ret = -EINVAL; | |
324 | goto out; | |
325 | } | |
326 | ||
327 | switch (width) { | |
328 | case 4: | |
329 | ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> | |
330 | (offset % 4)) & 0xf); | |
331 | break; | |
332 | case 8: | |
333 | ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); | |
334 | break; | |
335 | case 16: | |
336 | ret = sprintf(buf, "%u\n", | |
97f52eb4 | 337 | be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); |
1da177e4 LT |
338 | break; |
339 | case 32: | |
340 | ret = sprintf(buf, "%u\n", | |
97f52eb4 | 341 | be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); |
1da177e4 LT |
342 | break; |
343 | default: | |
344 | ret = 0; | |
345 | } | |
346 | ||
347 | out: | |
348 | kfree(in_mad); | |
349 | kfree(out_mad); | |
350 | ||
351 | return ret; | |
352 | } | |
353 | ||
354 | static PORT_PMA_ATTR(symbol_error , 0, 16, 32); | |
355 | static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); | |
356 | static PORT_PMA_ATTR(link_downed , 2, 8, 56); | |
357 | static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); | |
358 | static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); | |
359 | static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); | |
360 | static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); | |
361 | static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); | |
362 | static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); | |
363 | static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); | |
364 | static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); | |
365 | static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); | |
366 | static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); | |
367 | static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); | |
368 | static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); | |
369 | static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); | |
370 | ||
371 | static struct attribute *pma_attrs[] = { | |
372 | &port_pma_attr_symbol_error.attr.attr, | |
373 | &port_pma_attr_link_error_recovery.attr.attr, | |
374 | &port_pma_attr_link_downed.attr.attr, | |
375 | &port_pma_attr_port_rcv_errors.attr.attr, | |
376 | &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, | |
377 | &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, | |
378 | &port_pma_attr_port_xmit_discards.attr.attr, | |
379 | &port_pma_attr_port_xmit_constraint_errors.attr.attr, | |
380 | &port_pma_attr_port_rcv_constraint_errors.attr.attr, | |
381 | &port_pma_attr_local_link_integrity_errors.attr.attr, | |
382 | &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, | |
383 | &port_pma_attr_VL15_dropped.attr.attr, | |
384 | &port_pma_attr_port_xmit_data.attr.attr, | |
385 | &port_pma_attr_port_rcv_data.attr.attr, | |
386 | &port_pma_attr_port_xmit_packets.attr.attr, | |
387 | &port_pma_attr_port_rcv_packets.attr.attr, | |
388 | NULL | |
389 | }; | |
390 | ||
391 | static struct attribute_group pma_group = { | |
392 | .name = "counters", | |
393 | .attrs = pma_attrs | |
394 | }; | |
395 | ||
396 | static void ib_port_release(struct kobject *kobj) | |
397 | { | |
398 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); | |
399 | struct attribute *a; | |
400 | int i; | |
401 | ||
d48593bf | 402 | for (i = 0; (a = p->gid_group.attrs[i]); ++i) |
1da177e4 | 403 | kfree(a); |
1da177e4 | 404 | |
d48593bf DT |
405 | kfree(p->gid_group.attrs); |
406 | ||
407 | for (i = 0; (a = p->pkey_group.attrs[i]); ++i) | |
1da177e4 | 408 | kfree(a); |
1da177e4 | 409 | |
d48593bf DT |
410 | kfree(p->pkey_group.attrs); |
411 | ||
1da177e4 LT |
412 | kfree(p); |
413 | } | |
414 | ||
415 | static struct kobj_type port_type = { | |
416 | .release = ib_port_release, | |
417 | .sysfs_ops = &port_sysfs_ops, | |
418 | .default_attrs = port_default_attrs | |
419 | }; | |
420 | ||
421 | static void ib_device_release(struct class_device *cdev) | |
422 | { | |
423 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
424 | ||
425 | kfree(dev); | |
426 | } | |
427 | ||
428 | static int ib_device_hotplug(struct class_device *cdev, char **envp, | |
429 | int num_envp, char *buf, int size) | |
430 | { | |
431 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
432 | int i = 0, len = 0; | |
433 | ||
434 | if (add_hotplug_env_var(envp, num_envp, &i, buf, size, &len, | |
435 | "NAME=%s", dev->name)) | |
436 | return -ENOMEM; | |
437 | ||
438 | /* | |
439 | * It might be nice to pass the node GUID to hotplug, but | |
440 | * right now the only way to get it is to query the device | |
441 | * provider, and this can crash during device removal because | |
442 | * we are will be running after driver removal has started. | |
443 | * We could add a node_guid field to struct ib_device, or we | |
444 | * could just let the hotplug script read the node GUID from | |
445 | * sysfs when devices are added. | |
446 | */ | |
447 | ||
448 | envp[i] = NULL; | |
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 DT |
465 | for (i = 0; i < len; i++) { |
466 | element = kcalloc(1, sizeof(struct port_table_attribute), | |
467 | GFP_KERNEL); | |
468 | if (!element) | |
1da177e4 | 469 | goto err; |
1da177e4 | 470 | |
d48593bf DT |
471 | if (snprintf(element->name, sizeof(element->name), |
472 | "%d", i) >= sizeof(element->name)) | |
1da177e4 | 473 | goto err; |
1da177e4 | 474 | |
d48593bf DT |
475 | element->attr.attr.name = element->name; |
476 | element->attr.attr.mode = S_IRUGO; | |
477 | element->attr.attr.owner = THIS_MODULE; | |
478 | element->attr.show = show; | |
479 | element->index = i; | |
1da177e4 | 480 | |
d48593bf | 481 | tab_attr[i] = &element->attr.attr; |
1da177e4 LT |
482 | } |
483 | ||
d48593bf | 484 | return tab_attr; |
1da177e4 | 485 | |
d48593bf DT |
486 | err: |
487 | while (--i >= 0) | |
488 | kfree(tab_attr[i]); | |
489 | kfree(tab_attr); | |
490 | return NULL; | |
1da177e4 LT |
491 | } |
492 | ||
493 | static int add_port(struct ib_device *device, int port_num) | |
494 | { | |
495 | struct ib_port *p; | |
496 | struct ib_port_attr attr; | |
497 | int i; | |
498 | int ret; | |
499 | ||
500 | ret = ib_query_port(device, port_num, &attr); | |
501 | if (ret) | |
502 | return ret; | |
503 | ||
504 | p = kmalloc(sizeof *p, GFP_KERNEL); | |
505 | if (!p) | |
506 | return -ENOMEM; | |
507 | memset(p, 0, sizeof *p); | |
508 | ||
509 | p->ibdev = device; | |
510 | p->port_num = port_num; | |
511 | p->kobj.ktype = &port_type; | |
512 | ||
513 | p->kobj.parent = kobject_get(&device->ports_parent); | |
514 | if (!p->kobj.parent) { | |
515 | ret = -EBUSY; | |
516 | goto err; | |
517 | } | |
518 | ||
519 | ret = kobject_set_name(&p->kobj, "%d", port_num); | |
520 | if (ret) | |
521 | goto err_put; | |
522 | ||
523 | ret = kobject_register(&p->kobj); | |
524 | if (ret) | |
525 | goto err_put; | |
526 | ||
527 | ret = sysfs_create_group(&p->kobj, &pma_group); | |
528 | if (ret) | |
529 | goto err_put; | |
530 | ||
1da177e4 | 531 | p->gid_group.name = "gids"; |
d48593bf DT |
532 | p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); |
533 | if (!p->gid_group.attrs) | |
534 | goto err_remove_pma; | |
1da177e4 LT |
535 | |
536 | ret = sysfs_create_group(&p->kobj, &p->gid_group); | |
537 | if (ret) | |
538 | goto err_free_gid; | |
539 | ||
1da177e4 | 540 | p->pkey_group.name = "pkeys"; |
d48593bf DT |
541 | p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, |
542 | attr.pkey_tbl_len); | |
543 | if (!p->pkey_group.attrs) | |
544 | goto err_remove_gid; | |
1da177e4 LT |
545 | |
546 | ret = sysfs_create_group(&p->kobj, &p->pkey_group); | |
547 | if (ret) | |
548 | goto err_free_pkey; | |
549 | ||
550 | list_add_tail(&p->kobj.entry, &device->port_list); | |
551 | ||
552 | return 0; | |
553 | ||
554 | err_free_pkey: | |
d48593bf DT |
555 | for (i = 0; i < attr.pkey_tbl_len; ++i) |
556 | kfree(p->pkey_group.attrs[i]); | |
1da177e4 | 557 | |
d48593bf | 558 | kfree(p->pkey_group.attrs); |
1da177e4 LT |
559 | |
560 | err_remove_gid: | |
561 | sysfs_remove_group(&p->kobj, &p->gid_group); | |
562 | ||
563 | err_free_gid: | |
d48593bf DT |
564 | for (i = 0; i < attr.gid_tbl_len; ++i) |
565 | kfree(p->gid_group.attrs[i]); | |
1da177e4 | 566 | |
d48593bf | 567 | kfree(p->gid_group.attrs); |
1da177e4 LT |
568 | |
569 | err_remove_pma: | |
570 | sysfs_remove_group(&p->kobj, &pma_group); | |
571 | ||
572 | err_put: | |
573 | kobject_put(&device->ports_parent); | |
574 | ||
575 | err: | |
576 | kfree(p); | |
577 | return ret; | |
578 | } | |
579 | ||
580 | static ssize_t show_node_type(struct class_device *cdev, char *buf) | |
581 | { | |
582 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
583 | ||
584 | switch (dev->node_type) { | |
585 | case IB_NODE_CA: return sprintf(buf, "%d: CA\n", dev->node_type); | |
586 | case IB_NODE_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); | |
587 | case IB_NODE_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); | |
588 | default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); | |
589 | } | |
590 | } | |
591 | ||
592 | static ssize_t show_sys_image_guid(struct class_device *cdev, char *buf) | |
593 | { | |
594 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
595 | struct ib_device_attr attr; | |
596 | ssize_t ret; | |
597 | ||
598 | ret = ib_query_device(dev, &attr); | |
599 | if (ret) | |
600 | return ret; | |
601 | ||
602 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", | |
97f52eb4 SH |
603 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), |
604 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), | |
605 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), | |
606 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3])); | |
1da177e4 LT |
607 | } |
608 | ||
609 | static ssize_t show_node_guid(struct class_device *cdev, char *buf) | |
610 | { | |
611 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); | |
612 | struct ib_device_attr attr; | |
613 | ssize_t ret; | |
614 | ||
615 | ret = ib_query_device(dev, &attr); | |
616 | if (ret) | |
617 | return ret; | |
618 | ||
619 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", | |
97f52eb4 SH |
620 | be16_to_cpu(((__be16 *) &attr.node_guid)[0]), |
621 | be16_to_cpu(((__be16 *) &attr.node_guid)[1]), | |
622 | be16_to_cpu(((__be16 *) &attr.node_guid)[2]), | |
623 | be16_to_cpu(((__be16 *) &attr.node_guid)[3])); | |
1da177e4 LT |
624 | } |
625 | ||
626 | static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); | |
627 | static CLASS_DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); | |
628 | static CLASS_DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); | |
629 | ||
630 | static struct class_device_attribute *ib_class_attributes[] = { | |
631 | &class_device_attr_node_type, | |
632 | &class_device_attr_sys_image_guid, | |
633 | &class_device_attr_node_guid | |
634 | }; | |
635 | ||
636 | static struct class ib_class = { | |
637 | .name = "infiniband", | |
638 | .release = ib_device_release, | |
639 | .hotplug = ib_device_hotplug, | |
640 | }; | |
641 | ||
642 | int ib_device_register_sysfs(struct ib_device *device) | |
643 | { | |
644 | struct class_device *class_dev = &device->class_dev; | |
645 | int ret; | |
646 | int i; | |
647 | ||
648 | class_dev->class = &ib_class; | |
649 | class_dev->class_data = device; | |
650 | strlcpy(class_dev->class_id, device->name, BUS_ID_SIZE); | |
651 | ||
652 | INIT_LIST_HEAD(&device->port_list); | |
653 | ||
654 | ret = class_device_register(class_dev); | |
655 | if (ret) | |
656 | goto err; | |
657 | ||
658 | for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { | |
659 | ret = class_device_create_file(class_dev, ib_class_attributes[i]); | |
660 | if (ret) | |
661 | goto err_unregister; | |
662 | } | |
663 | ||
664 | device->ports_parent.parent = kobject_get(&class_dev->kobj); | |
665 | if (!device->ports_parent.parent) { | |
666 | ret = -EBUSY; | |
667 | goto err_unregister; | |
668 | } | |
669 | ret = kobject_set_name(&device->ports_parent, "ports"); | |
670 | if (ret) | |
671 | goto err_put; | |
672 | ret = kobject_register(&device->ports_parent); | |
673 | if (ret) | |
674 | goto err_put; | |
675 | ||
676 | if (device->node_type == IB_NODE_SWITCH) { | |
677 | ret = add_port(device, 0); | |
678 | if (ret) | |
679 | goto err_put; | |
680 | } else { | |
681 | int i; | |
682 | ||
683 | for (i = 1; i <= device->phys_port_cnt; ++i) { | |
684 | ret = add_port(device, i); | |
685 | if (ret) | |
686 | goto err_put; | |
687 | } | |
688 | } | |
689 | ||
690 | return 0; | |
691 | ||
692 | err_put: | |
693 | { | |
694 | struct kobject *p, *t; | |
695 | struct ib_port *port; | |
696 | ||
697 | list_for_each_entry_safe(p, t, &device->port_list, entry) { | |
698 | list_del(&p->entry); | |
699 | port = container_of(p, struct ib_port, kobj); | |
700 | sysfs_remove_group(p, &pma_group); | |
701 | sysfs_remove_group(p, &port->pkey_group); | |
702 | sysfs_remove_group(p, &port->gid_group); | |
703 | kobject_unregister(p); | |
704 | } | |
705 | } | |
706 | ||
707 | kobject_put(&class_dev->kobj); | |
708 | ||
709 | err_unregister: | |
710 | class_device_unregister(class_dev); | |
711 | ||
712 | err: | |
713 | return ret; | |
714 | } | |
715 | ||
716 | void ib_device_unregister_sysfs(struct ib_device *device) | |
717 | { | |
718 | struct kobject *p, *t; | |
719 | struct ib_port *port; | |
720 | ||
721 | list_for_each_entry_safe(p, t, &device->port_list, entry) { | |
722 | list_del(&p->entry); | |
723 | port = container_of(p, struct ib_port, kobj); | |
724 | sysfs_remove_group(p, &pma_group); | |
725 | sysfs_remove_group(p, &port->pkey_group); | |
726 | sysfs_remove_group(p, &port->gid_group); | |
727 | kobject_unregister(p); | |
728 | } | |
729 | ||
730 | kobject_unregister(&device->ports_parent); | |
731 | class_device_unregister(&device->class_dev); | |
732 | } | |
733 | ||
734 | int ib_sysfs_setup(void) | |
735 | { | |
736 | return class_register(&ib_class); | |
737 | } | |
738 | ||
739 | void ib_sysfs_cleanup(void) | |
740 | { | |
741 | class_unregister(&ib_class); | |
742 | } |