Commit | Line | Data |
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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 | 37 | #include <linux/slab.h> |
fc87af74 | 38 | #include <linux/stat.h> |
8c65b4a6 TS |
39 | #include <linux/string.h> |
40 | ||
a4d61e84 | 41 | #include <rdma/ib_mad.h> |
1da177e4 LT |
42 | |
43 | struct ib_port { | |
44 | struct kobject kobj; | |
45 | struct ib_device *ibdev; | |
46 | struct attribute_group gid_group; | |
1da177e4 | 47 | struct attribute_group pkey_group; |
1da177e4 LT |
48 | u8 port_num; |
49 | }; | |
50 | ||
51 | struct port_attribute { | |
52 | struct attribute attr; | |
53 | ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf); | |
54 | ssize_t (*store)(struct ib_port *, struct port_attribute *, | |
55 | const char *buf, size_t count); | |
56 | }; | |
57 | ||
58 | #define PORT_ATTR(_name, _mode, _show, _store) \ | |
59 | struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store) | |
60 | ||
61 | #define PORT_ATTR_RO(_name) \ | |
62 | struct port_attribute port_attr_##_name = __ATTR_RO(_name) | |
63 | ||
64 | struct port_table_attribute { | |
d48593bf DT |
65 | struct port_attribute attr; |
66 | char name[8]; | |
67 | int index; | |
1da177e4 LT |
68 | }; |
69 | ||
70 | static ssize_t port_attr_show(struct kobject *kobj, | |
71 | struct attribute *attr, char *buf) | |
72 | { | |
73 | struct port_attribute *port_attr = | |
74 | container_of(attr, struct port_attribute, attr); | |
75 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); | |
76 | ||
77 | if (!port_attr->show) | |
70f2817a | 78 | return -EIO; |
1da177e4 LT |
79 | |
80 | return port_attr->show(p, port_attr, buf); | |
81 | } | |
82 | ||
52cf25d0 | 83 | static const struct sysfs_ops port_sysfs_ops = { |
1da177e4 LT |
84 | .show = port_attr_show |
85 | }; | |
86 | ||
87 | static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, | |
88 | char *buf) | |
89 | { | |
90 | struct ib_port_attr attr; | |
91 | ssize_t ret; | |
92 | ||
93 | static const char *state_name[] = { | |
94 | [IB_PORT_NOP] = "NOP", | |
95 | [IB_PORT_DOWN] = "DOWN", | |
96 | [IB_PORT_INIT] = "INIT", | |
97 | [IB_PORT_ARMED] = "ARMED", | |
98 | [IB_PORT_ACTIVE] = "ACTIVE", | |
99 | [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" | |
100 | }; | |
101 | ||
102 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
103 | if (ret) | |
104 | return ret; | |
105 | ||
106 | return sprintf(buf, "%d: %s\n", attr.state, | |
048975ac | 107 | attr.state >= 0 && attr.state < ARRAY_SIZE(state_name) ? |
1da177e4 LT |
108 | state_name[attr.state] : "UNKNOWN"); |
109 | } | |
110 | ||
111 | static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, | |
112 | char *buf) | |
113 | { | |
114 | struct ib_port_attr attr; | |
115 | ssize_t ret; | |
116 | ||
117 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
118 | if (ret) | |
119 | return ret; | |
120 | ||
121 | return sprintf(buf, "0x%x\n", attr.lid); | |
122 | } | |
123 | ||
124 | static ssize_t lid_mask_count_show(struct ib_port *p, | |
125 | struct port_attribute *unused, | |
126 | char *buf) | |
127 | { | |
128 | struct ib_port_attr attr; | |
129 | ssize_t ret; | |
130 | ||
131 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
132 | if (ret) | |
133 | return ret; | |
134 | ||
135 | return sprintf(buf, "%d\n", attr.lmc); | |
136 | } | |
137 | ||
138 | static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, | |
139 | char *buf) | |
140 | { | |
141 | struct ib_port_attr attr; | |
142 | ssize_t ret; | |
143 | ||
144 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
145 | if (ret) | |
146 | return ret; | |
147 | ||
148 | return sprintf(buf, "0x%x\n", attr.sm_lid); | |
149 | } | |
150 | ||
151 | static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, | |
152 | char *buf) | |
153 | { | |
154 | struct ib_port_attr attr; | |
155 | ssize_t ret; | |
156 | ||
157 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
158 | if (ret) | |
159 | return ret; | |
160 | ||
161 | return sprintf(buf, "%d\n", attr.sm_sl); | |
162 | } | |
163 | ||
164 | static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, | |
165 | char *buf) | |
166 | { | |
167 | struct ib_port_attr attr; | |
168 | ssize_t ret; | |
169 | ||
170 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
171 | if (ret) | |
172 | return ret; | |
173 | ||
174 | return sprintf(buf, "0x%08x\n", attr.port_cap_flags); | |
175 | } | |
176 | ||
177 | static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, | |
178 | char *buf) | |
179 | { | |
180 | struct ib_port_attr attr; | |
181 | char *speed = ""; | |
0559d8dc | 182 | int rate; /* in deci-Gb/sec */ |
1da177e4 LT |
183 | ssize_t ret; |
184 | ||
185 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
186 | if (ret) | |
187 | return ret; | |
188 | ||
189 | switch (attr.active_speed) { | |
2e96691c | 190 | case IB_SPEED_DDR: |
71eeba16 | 191 | speed = " DDR"; |
e9319b0c | 192 | rate = 50; |
71eeba16 | 193 | break; |
2e96691c | 194 | case IB_SPEED_QDR: |
71eeba16 | 195 | speed = " QDR"; |
e9319b0c | 196 | rate = 100; |
71eeba16 | 197 | break; |
2e96691c | 198 | case IB_SPEED_FDR10: |
71eeba16 | 199 | speed = " FDR10"; |
e9319b0c | 200 | rate = 100; |
71eeba16 | 201 | break; |
2e96691c | 202 | case IB_SPEED_FDR: |
71eeba16 | 203 | speed = " FDR"; |
e9319b0c | 204 | rate = 140; |
71eeba16 | 205 | break; |
2e96691c | 206 | case IB_SPEED_EDR: |
71eeba16 | 207 | speed = " EDR"; |
e9319b0c | 208 | rate = 250; |
71eeba16 | 209 | break; |
0559d8dc RD |
210 | case IB_SPEED_SDR: |
211 | default: /* default to SDR for invalid rates */ | |
212 | rate = 25; | |
213 | break; | |
1da177e4 LT |
214 | } |
215 | ||
71eeba16 | 216 | rate *= ib_width_enum_to_int(attr.active_width); |
1da177e4 LT |
217 | if (rate < 0) |
218 | return -EINVAL; | |
219 | ||
220 | return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", | |
e9319b0c | 221 | rate / 10, rate % 10 ? ".5" : "", |
1da177e4 LT |
222 | ib_width_enum_to_int(attr.active_width), speed); |
223 | } | |
224 | ||
225 | static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, | |
226 | char *buf) | |
227 | { | |
228 | struct ib_port_attr attr; | |
229 | ||
230 | ssize_t ret; | |
231 | ||
232 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
233 | if (ret) | |
234 | return ret; | |
235 | ||
236 | switch (attr.phys_state) { | |
237 | case 1: return sprintf(buf, "1: Sleep\n"); | |
238 | case 2: return sprintf(buf, "2: Polling\n"); | |
239 | case 3: return sprintf(buf, "3: Disabled\n"); | |
240 | case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); | |
241 | case 5: return sprintf(buf, "5: LinkUp\n"); | |
242 | case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); | |
243 | case 7: return sprintf(buf, "7: Phy Test\n"); | |
244 | default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); | |
245 | } | |
246 | } | |
247 | ||
8ad330a0 EC |
248 | static ssize_t link_layer_show(struct ib_port *p, struct port_attribute *unused, |
249 | char *buf) | |
250 | { | |
251 | switch (rdma_port_get_link_layer(p->ibdev, p->port_num)) { | |
252 | case IB_LINK_LAYER_INFINIBAND: | |
253 | return sprintf(buf, "%s\n", "InfiniBand"); | |
254 | case IB_LINK_LAYER_ETHERNET: | |
255 | return sprintf(buf, "%s\n", "Ethernet"); | |
256 | default: | |
257 | return sprintf(buf, "%s\n", "Unknown"); | |
258 | } | |
259 | } | |
260 | ||
1da177e4 LT |
261 | static PORT_ATTR_RO(state); |
262 | static PORT_ATTR_RO(lid); | |
263 | static PORT_ATTR_RO(lid_mask_count); | |
264 | static PORT_ATTR_RO(sm_lid); | |
265 | static PORT_ATTR_RO(sm_sl); | |
266 | static PORT_ATTR_RO(cap_mask); | |
267 | static PORT_ATTR_RO(rate); | |
268 | static PORT_ATTR_RO(phys_state); | |
8ad330a0 | 269 | static PORT_ATTR_RO(link_layer); |
1da177e4 LT |
270 | |
271 | static struct attribute *port_default_attrs[] = { | |
272 | &port_attr_state.attr, | |
273 | &port_attr_lid.attr, | |
274 | &port_attr_lid_mask_count.attr, | |
275 | &port_attr_sm_lid.attr, | |
276 | &port_attr_sm_sl.attr, | |
277 | &port_attr_cap_mask.attr, | |
278 | &port_attr_rate.attr, | |
279 | &port_attr_phys_state.attr, | |
8ad330a0 | 280 | &port_attr_link_layer.attr, |
1da177e4 LT |
281 | NULL |
282 | }; | |
283 | ||
284 | static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, | |
285 | char *buf) | |
286 | { | |
287 | struct port_table_attribute *tab_attr = | |
288 | container_of(attr, struct port_table_attribute, attr); | |
289 | union ib_gid gid; | |
290 | ssize_t ret; | |
291 | ||
292 | ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); | |
293 | if (ret) | |
294 | return ret; | |
295 | ||
5b095d98 | 296 | return sprintf(buf, "%pI6\n", gid.raw); |
1da177e4 LT |
297 | } |
298 | ||
299 | static ssize_t show_port_pkey(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 | u16 pkey; | |
305 | ssize_t ret; | |
306 | ||
307 | ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey); | |
308 | if (ret) | |
309 | return ret; | |
310 | ||
311 | return sprintf(buf, "0x%04x\n", pkey); | |
312 | } | |
313 | ||
314 | #define PORT_PMA_ATTR(_name, _counter, _width, _offset) \ | |
315 | struct port_table_attribute port_pma_attr_##_name = { \ | |
316 | .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ | |
317 | .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ | |
318 | } | |
319 | ||
320 | static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr, | |
321 | char *buf) | |
322 | { | |
323 | struct port_table_attribute *tab_attr = | |
324 | container_of(attr, struct port_table_attribute, attr); | |
325 | int offset = tab_attr->index & 0xffff; | |
326 | int width = (tab_attr->index >> 16) & 0xff; | |
327 | struct ib_mad *in_mad = NULL; | |
328 | struct ib_mad *out_mad = NULL; | |
4cd7c947 IW |
329 | size_t mad_size = sizeof(*out_mad); |
330 | u16 out_mad_pkey_index = 0; | |
1da177e4 LT |
331 | ssize_t ret; |
332 | ||
333 | if (!p->ibdev->process_mad) | |
334 | return sprintf(buf, "N/A (no PMA)\n"); | |
335 | ||
de6eb66b | 336 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
856c52a7 | 337 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
1da177e4 LT |
338 | if (!in_mad || !out_mad) { |
339 | ret = -ENOMEM; | |
340 | goto out; | |
341 | } | |
342 | ||
1da177e4 LT |
343 | in_mad->mad_hdr.base_version = 1; |
344 | in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; | |
345 | in_mad->mad_hdr.class_version = 1; | |
346 | in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; | |
347 | in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ | |
348 | ||
349 | in_mad->data[41] = p->port_num; /* PortSelect field */ | |
350 | ||
351 | if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, | |
4cd7c947 IW |
352 | p->port_num, NULL, NULL, |
353 | (const struct ib_mad_hdr *)in_mad, mad_size, | |
354 | (struct ib_mad_hdr *)out_mad, &mad_size, | |
355 | &out_mad_pkey_index) & | |
1da177e4 LT |
356 | (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != |
357 | (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { | |
358 | ret = -EINVAL; | |
359 | goto out; | |
360 | } | |
361 | ||
362 | switch (width) { | |
363 | case 4: | |
364 | ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> | |
d8b9f23b | 365 | (4 - (offset % 8))) & 0xf); |
1da177e4 LT |
366 | break; |
367 | case 8: | |
368 | ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); | |
369 | break; | |
370 | case 16: | |
371 | ret = sprintf(buf, "%u\n", | |
97f52eb4 | 372 | be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); |
1da177e4 LT |
373 | break; |
374 | case 32: | |
375 | ret = sprintf(buf, "%u\n", | |
97f52eb4 | 376 | be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); |
1da177e4 LT |
377 | break; |
378 | default: | |
379 | ret = 0; | |
380 | } | |
381 | ||
382 | out: | |
383 | kfree(in_mad); | |
384 | kfree(out_mad); | |
385 | ||
386 | return ret; | |
387 | } | |
388 | ||
389 | static PORT_PMA_ATTR(symbol_error , 0, 16, 32); | |
390 | static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); | |
391 | static PORT_PMA_ATTR(link_downed , 2, 8, 56); | |
392 | static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); | |
393 | static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); | |
394 | static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); | |
395 | static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); | |
396 | static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); | |
397 | static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); | |
398 | static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); | |
399 | static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); | |
400 | static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); | |
401 | static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); | |
402 | static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); | |
403 | static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); | |
404 | static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); | |
405 | ||
406 | static struct attribute *pma_attrs[] = { | |
407 | &port_pma_attr_symbol_error.attr.attr, | |
408 | &port_pma_attr_link_error_recovery.attr.attr, | |
409 | &port_pma_attr_link_downed.attr.attr, | |
410 | &port_pma_attr_port_rcv_errors.attr.attr, | |
411 | &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, | |
412 | &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, | |
413 | &port_pma_attr_port_xmit_discards.attr.attr, | |
414 | &port_pma_attr_port_xmit_constraint_errors.attr.attr, | |
415 | &port_pma_attr_port_rcv_constraint_errors.attr.attr, | |
416 | &port_pma_attr_local_link_integrity_errors.attr.attr, | |
417 | &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, | |
418 | &port_pma_attr_VL15_dropped.attr.attr, | |
419 | &port_pma_attr_port_xmit_data.attr.attr, | |
420 | &port_pma_attr_port_rcv_data.attr.attr, | |
421 | &port_pma_attr_port_xmit_packets.attr.attr, | |
422 | &port_pma_attr_port_rcv_packets.attr.attr, | |
423 | NULL | |
424 | }; | |
425 | ||
426 | static struct attribute_group pma_group = { | |
427 | .name = "counters", | |
428 | .attrs = pma_attrs | |
429 | }; | |
430 | ||
431 | static void ib_port_release(struct kobject *kobj) | |
432 | { | |
433 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); | |
434 | struct attribute *a; | |
435 | int i; | |
436 | ||
cad6d02a HE |
437 | if (p->gid_group.attrs) { |
438 | for (i = 0; (a = p->gid_group.attrs[i]); ++i) | |
439 | kfree(a); | |
1da177e4 | 440 | |
cad6d02a HE |
441 | kfree(p->gid_group.attrs); |
442 | } | |
d48593bf | 443 | |
cad6d02a HE |
444 | if (p->pkey_group.attrs) { |
445 | for (i = 0; (a = p->pkey_group.attrs[i]); ++i) | |
446 | kfree(a); | |
1da177e4 | 447 | |
cad6d02a HE |
448 | kfree(p->pkey_group.attrs); |
449 | } | |
d48593bf | 450 | |
1da177e4 LT |
451 | kfree(p); |
452 | } | |
453 | ||
454 | static struct kobj_type port_type = { | |
455 | .release = ib_port_release, | |
456 | .sysfs_ops = &port_sysfs_ops, | |
457 | .default_attrs = port_default_attrs | |
458 | }; | |
459 | ||
f4e91eb4 | 460 | static void ib_device_release(struct device *device) |
1da177e4 | 461 | { |
f4e91eb4 | 462 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 | 463 | |
7738613e | 464 | kfree(dev->port_immutable); |
1da177e4 LT |
465 | kfree(dev); |
466 | } | |
467 | ||
f4e91eb4 | 468 | static int ib_device_uevent(struct device *device, |
7eff2e7a | 469 | struct kobj_uevent_env *env) |
1da177e4 | 470 | { |
f4e91eb4 | 471 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 | 472 | |
7eff2e7a | 473 | if (add_uevent_var(env, "NAME=%s", dev->name)) |
1da177e4 LT |
474 | return -ENOMEM; |
475 | ||
476 | /* | |
cf311cd4 | 477 | * It would be nice to pass the node GUID with the event... |
1da177e4 LT |
478 | */ |
479 | ||
1da177e4 LT |
480 | return 0; |
481 | } | |
482 | ||
d48593bf DT |
483 | static struct attribute ** |
484 | alloc_group_attrs(ssize_t (*show)(struct ib_port *, | |
485 | struct port_attribute *, char *buf), | |
486 | int len) | |
1da177e4 | 487 | { |
d48593bf DT |
488 | struct attribute **tab_attr; |
489 | struct port_table_attribute *element; | |
1da177e4 | 490 | int i; |
1da177e4 | 491 | |
d48593bf DT |
492 | tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); |
493 | if (!tab_attr) | |
494 | return NULL; | |
1da177e4 | 495 | |
d48593bf | 496 | for (i = 0; i < len; i++) { |
82ca76b6 | 497 | element = kzalloc(sizeof(struct port_table_attribute), |
d48593bf DT |
498 | GFP_KERNEL); |
499 | if (!element) | |
1da177e4 | 500 | goto err; |
1da177e4 | 501 | |
d48593bf | 502 | if (snprintf(element->name, sizeof(element->name), |
048975ac RD |
503 | "%d", i) >= sizeof(element->name)) { |
504 | kfree(element); | |
1da177e4 | 505 | goto err; |
048975ac | 506 | } |
1da177e4 | 507 | |
d48593bf DT |
508 | element->attr.attr.name = element->name; |
509 | element->attr.attr.mode = S_IRUGO; | |
d48593bf DT |
510 | element->attr.show = show; |
511 | element->index = i; | |
21e3bde9 | 512 | sysfs_attr_init(&element->attr.attr); |
1da177e4 | 513 | |
d48593bf | 514 | tab_attr[i] = &element->attr.attr; |
1da177e4 LT |
515 | } |
516 | ||
d48593bf | 517 | return tab_attr; |
1da177e4 | 518 | |
d48593bf DT |
519 | err: |
520 | while (--i >= 0) | |
521 | kfree(tab_attr[i]); | |
522 | kfree(tab_attr); | |
523 | return NULL; | |
1da177e4 LT |
524 | } |
525 | ||
9a6edb60 RC |
526 | static int add_port(struct ib_device *device, int port_num, |
527 | int (*port_callback)(struct ib_device *, | |
528 | u8, struct kobject *)) | |
1da177e4 LT |
529 | { |
530 | struct ib_port *p; | |
531 | struct ib_port_attr attr; | |
532 | int i; | |
533 | int ret; | |
534 | ||
535 | ret = ib_query_port(device, port_num, &attr); | |
536 | if (ret) | |
537 | return ret; | |
538 | ||
de6eb66b | 539 | p = kzalloc(sizeof *p, GFP_KERNEL); |
1da177e4 LT |
540 | if (!p) |
541 | return -ENOMEM; | |
1da177e4 LT |
542 | |
543 | p->ibdev = device; | |
544 | p->port_num = port_num; | |
1da177e4 | 545 | |
35be0681 | 546 | ret = kobject_init_and_add(&p->kobj, &port_type, |
373c0ea1 | 547 | device->ports_parent, |
35be0681 | 548 | "%d", port_num); |
cad6d02a HE |
549 | if (ret) { |
550 | kfree(p); | |
551 | return ret; | |
552 | } | |
1da177e4 LT |
553 | |
554 | ret = sysfs_create_group(&p->kobj, &pma_group); | |
555 | if (ret) | |
556 | goto err_put; | |
557 | ||
1da177e4 | 558 | p->gid_group.name = "gids"; |
d48593bf | 559 | p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); |
80b15043 WY |
560 | if (!p->gid_group.attrs) { |
561 | ret = -ENOMEM; | |
d48593bf | 562 | goto err_remove_pma; |
80b15043 | 563 | } |
1da177e4 LT |
564 | |
565 | ret = sysfs_create_group(&p->kobj, &p->gid_group); | |
566 | if (ret) | |
567 | goto err_free_gid; | |
568 | ||
1da177e4 | 569 | p->pkey_group.name = "pkeys"; |
d48593bf DT |
570 | p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, |
571 | attr.pkey_tbl_len); | |
80b15043 WY |
572 | if (!p->pkey_group.attrs) { |
573 | ret = -ENOMEM; | |
d48593bf | 574 | goto err_remove_gid; |
80b15043 | 575 | } |
1da177e4 LT |
576 | |
577 | ret = sysfs_create_group(&p->kobj, &p->pkey_group); | |
578 | if (ret) | |
579 | goto err_free_pkey; | |
580 | ||
9a6edb60 RC |
581 | if (port_callback) { |
582 | ret = port_callback(device, port_num, &p->kobj); | |
583 | if (ret) | |
584 | goto err_remove_pkey; | |
585 | } | |
586 | ||
1da177e4 LT |
587 | list_add_tail(&p->kobj.entry, &device->port_list); |
588 | ||
35be0681 | 589 | kobject_uevent(&p->kobj, KOBJ_ADD); |
1da177e4 LT |
590 | return 0; |
591 | ||
9a6edb60 RC |
592 | err_remove_pkey: |
593 | sysfs_remove_group(&p->kobj, &p->pkey_group); | |
594 | ||
1da177e4 | 595 | err_free_pkey: |
d48593bf DT |
596 | for (i = 0; i < attr.pkey_tbl_len; ++i) |
597 | kfree(p->pkey_group.attrs[i]); | |
1da177e4 | 598 | |
d48593bf | 599 | kfree(p->pkey_group.attrs); |
cad6d02a | 600 | p->pkey_group.attrs = NULL; |
1da177e4 LT |
601 | |
602 | err_remove_gid: | |
603 | sysfs_remove_group(&p->kobj, &p->gid_group); | |
604 | ||
605 | err_free_gid: | |
d48593bf DT |
606 | for (i = 0; i < attr.gid_tbl_len; ++i) |
607 | kfree(p->gid_group.attrs[i]); | |
1da177e4 | 608 | |
d48593bf | 609 | kfree(p->gid_group.attrs); |
cad6d02a | 610 | p->gid_group.attrs = NULL; |
1da177e4 LT |
611 | |
612 | err_remove_pma: | |
613 | sysfs_remove_group(&p->kobj, &pma_group); | |
614 | ||
615 | err_put: | |
cad6d02a | 616 | kobject_put(&p->kobj); |
1da177e4 LT |
617 | return ret; |
618 | } | |
619 | ||
f4e91eb4 TJ |
620 | static ssize_t show_node_type(struct device *device, |
621 | struct device_attribute *attr, char *buf) | |
1da177e4 | 622 | { |
f4e91eb4 | 623 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 LT |
624 | |
625 | switch (dev->node_type) { | |
07ebafba TT |
626 | case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); |
627 | case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); | |
180771a3 | 628 | case RDMA_NODE_USNIC: return sprintf(buf, "%d: usNIC\n", dev->node_type); |
5db5765e | 629 | case RDMA_NODE_USNIC_UDP: return sprintf(buf, "%d: usNIC UDP\n", dev->node_type); |
07ebafba TT |
630 | case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); |
631 | case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); | |
632 | default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); | |
1da177e4 LT |
633 | } |
634 | } | |
635 | ||
f4e91eb4 TJ |
636 | static ssize_t show_sys_image_guid(struct device *device, |
637 | struct device_attribute *dev_attr, char *buf) | |
1da177e4 | 638 | { |
f4e91eb4 | 639 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 LT |
640 | struct ib_device_attr attr; |
641 | ssize_t ret; | |
642 | ||
643 | ret = ib_query_device(dev, &attr); | |
644 | if (ret) | |
645 | return ret; | |
646 | ||
647 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", | |
97f52eb4 SH |
648 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), |
649 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), | |
650 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), | |
651 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3])); | |
1da177e4 LT |
652 | } |
653 | ||
f4e91eb4 TJ |
654 | static ssize_t show_node_guid(struct device *device, |
655 | struct device_attribute *attr, char *buf) | |
1da177e4 | 656 | { |
f4e91eb4 | 657 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 | 658 | |
1da177e4 | 659 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", |
cf311cd4 SH |
660 | be16_to_cpu(((__be16 *) &dev->node_guid)[0]), |
661 | be16_to_cpu(((__be16 *) &dev->node_guid)[1]), | |
662 | be16_to_cpu(((__be16 *) &dev->node_guid)[2]), | |
663 | be16_to_cpu(((__be16 *) &dev->node_guid)[3])); | |
1da177e4 LT |
664 | } |
665 | ||
f4e91eb4 TJ |
666 | static ssize_t show_node_desc(struct device *device, |
667 | struct device_attribute *attr, char *buf) | |
c5bcbbb9 | 668 | { |
f4e91eb4 | 669 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
c5bcbbb9 RD |
670 | |
671 | return sprintf(buf, "%.64s\n", dev->node_desc); | |
672 | } | |
673 | ||
f4e91eb4 TJ |
674 | static ssize_t set_node_desc(struct device *device, |
675 | struct device_attribute *attr, | |
676 | const char *buf, size_t count) | |
c5bcbbb9 | 677 | { |
f4e91eb4 | 678 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
c5bcbbb9 RD |
679 | struct ib_device_modify desc = {}; |
680 | int ret; | |
681 | ||
682 | if (!dev->modify_device) | |
683 | return -EIO; | |
684 | ||
685 | memcpy(desc.node_desc, buf, min_t(int, count, 64)); | |
686 | ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc); | |
687 | if (ret) | |
688 | return ret; | |
689 | ||
690 | return count; | |
691 | } | |
692 | ||
f4e91eb4 TJ |
693 | static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); |
694 | static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); | |
695 | static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); | |
696 | static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc); | |
697 | ||
698 | static struct device_attribute *ib_class_attributes[] = { | |
699 | &dev_attr_node_type, | |
700 | &dev_attr_sys_image_guid, | |
701 | &dev_attr_node_guid, | |
702 | &dev_attr_node_desc | |
1da177e4 LT |
703 | }; |
704 | ||
705 | static struct class ib_class = { | |
706 | .name = "infiniband", | |
f4e91eb4 TJ |
707 | .dev_release = ib_device_release, |
708 | .dev_uevent = ib_device_uevent, | |
1da177e4 LT |
709 | }; |
710 | ||
7f624d02 SW |
711 | /* Show a given an attribute in the statistics group */ |
712 | static ssize_t show_protocol_stat(const struct device *device, | |
713 | struct device_attribute *attr, char *buf, | |
714 | unsigned offset) | |
715 | { | |
716 | struct ib_device *dev = container_of(device, struct ib_device, dev); | |
717 | union rdma_protocol_stats stats; | |
718 | ssize_t ret; | |
719 | ||
720 | ret = dev->get_protocol_stats(dev, &stats); | |
721 | if (ret) | |
722 | return ret; | |
723 | ||
724 | return sprintf(buf, "%llu\n", | |
725 | (unsigned long long) ((u64 *) &stats)[offset]); | |
726 | } | |
727 | ||
728 | /* generate a read-only iwarp statistics attribute */ | |
729 | #define IW_STATS_ENTRY(name) \ | |
730 | static ssize_t show_##name(struct device *device, \ | |
731 | struct device_attribute *attr, char *buf) \ | |
732 | { \ | |
733 | return show_protocol_stat(device, attr, buf, \ | |
734 | offsetof(struct iw_protocol_stats, name) / \ | |
735 | sizeof (u64)); \ | |
736 | } \ | |
737 | static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) | |
738 | ||
739 | IW_STATS_ENTRY(ipInReceives); | |
740 | IW_STATS_ENTRY(ipInHdrErrors); | |
741 | IW_STATS_ENTRY(ipInTooBigErrors); | |
742 | IW_STATS_ENTRY(ipInNoRoutes); | |
743 | IW_STATS_ENTRY(ipInAddrErrors); | |
744 | IW_STATS_ENTRY(ipInUnknownProtos); | |
745 | IW_STATS_ENTRY(ipInTruncatedPkts); | |
746 | IW_STATS_ENTRY(ipInDiscards); | |
747 | IW_STATS_ENTRY(ipInDelivers); | |
748 | IW_STATS_ENTRY(ipOutForwDatagrams); | |
749 | IW_STATS_ENTRY(ipOutRequests); | |
750 | IW_STATS_ENTRY(ipOutDiscards); | |
751 | IW_STATS_ENTRY(ipOutNoRoutes); | |
752 | IW_STATS_ENTRY(ipReasmTimeout); | |
753 | IW_STATS_ENTRY(ipReasmReqds); | |
754 | IW_STATS_ENTRY(ipReasmOKs); | |
755 | IW_STATS_ENTRY(ipReasmFails); | |
756 | IW_STATS_ENTRY(ipFragOKs); | |
757 | IW_STATS_ENTRY(ipFragFails); | |
758 | IW_STATS_ENTRY(ipFragCreates); | |
759 | IW_STATS_ENTRY(ipInMcastPkts); | |
760 | IW_STATS_ENTRY(ipOutMcastPkts); | |
761 | IW_STATS_ENTRY(ipInBcastPkts); | |
762 | IW_STATS_ENTRY(ipOutBcastPkts); | |
763 | IW_STATS_ENTRY(tcpRtoAlgorithm); | |
764 | IW_STATS_ENTRY(tcpRtoMin); | |
765 | IW_STATS_ENTRY(tcpRtoMax); | |
766 | IW_STATS_ENTRY(tcpMaxConn); | |
767 | IW_STATS_ENTRY(tcpActiveOpens); | |
768 | IW_STATS_ENTRY(tcpPassiveOpens); | |
769 | IW_STATS_ENTRY(tcpAttemptFails); | |
770 | IW_STATS_ENTRY(tcpEstabResets); | |
771 | IW_STATS_ENTRY(tcpCurrEstab); | |
772 | IW_STATS_ENTRY(tcpInSegs); | |
773 | IW_STATS_ENTRY(tcpOutSegs); | |
774 | IW_STATS_ENTRY(tcpRetransSegs); | |
775 | IW_STATS_ENTRY(tcpInErrs); | |
776 | IW_STATS_ENTRY(tcpOutRsts); | |
777 | ||
778 | static struct attribute *iw_proto_stats_attrs[] = { | |
779 | &dev_attr_ipInReceives.attr, | |
780 | &dev_attr_ipInHdrErrors.attr, | |
781 | &dev_attr_ipInTooBigErrors.attr, | |
782 | &dev_attr_ipInNoRoutes.attr, | |
783 | &dev_attr_ipInAddrErrors.attr, | |
784 | &dev_attr_ipInUnknownProtos.attr, | |
785 | &dev_attr_ipInTruncatedPkts.attr, | |
786 | &dev_attr_ipInDiscards.attr, | |
787 | &dev_attr_ipInDelivers.attr, | |
788 | &dev_attr_ipOutForwDatagrams.attr, | |
789 | &dev_attr_ipOutRequests.attr, | |
790 | &dev_attr_ipOutDiscards.attr, | |
791 | &dev_attr_ipOutNoRoutes.attr, | |
792 | &dev_attr_ipReasmTimeout.attr, | |
793 | &dev_attr_ipReasmReqds.attr, | |
794 | &dev_attr_ipReasmOKs.attr, | |
795 | &dev_attr_ipReasmFails.attr, | |
796 | &dev_attr_ipFragOKs.attr, | |
797 | &dev_attr_ipFragFails.attr, | |
798 | &dev_attr_ipFragCreates.attr, | |
799 | &dev_attr_ipInMcastPkts.attr, | |
800 | &dev_attr_ipOutMcastPkts.attr, | |
801 | &dev_attr_ipInBcastPkts.attr, | |
802 | &dev_attr_ipOutBcastPkts.attr, | |
803 | &dev_attr_tcpRtoAlgorithm.attr, | |
804 | &dev_attr_tcpRtoMin.attr, | |
805 | &dev_attr_tcpRtoMax.attr, | |
806 | &dev_attr_tcpMaxConn.attr, | |
807 | &dev_attr_tcpActiveOpens.attr, | |
808 | &dev_attr_tcpPassiveOpens.attr, | |
809 | &dev_attr_tcpAttemptFails.attr, | |
810 | &dev_attr_tcpEstabResets.attr, | |
811 | &dev_attr_tcpCurrEstab.attr, | |
812 | &dev_attr_tcpInSegs.attr, | |
813 | &dev_attr_tcpOutSegs.attr, | |
814 | &dev_attr_tcpRetransSegs.attr, | |
815 | &dev_attr_tcpInErrs.attr, | |
816 | &dev_attr_tcpOutRsts.attr, | |
817 | NULL | |
818 | }; | |
819 | ||
820 | static struct attribute_group iw_stats_group = { | |
821 | .name = "proto_stats", | |
822 | .attrs = iw_proto_stats_attrs, | |
823 | }; | |
824 | ||
584482ac HE |
825 | static void free_port_list_attributes(struct ib_device *device) |
826 | { | |
827 | struct kobject *p, *t; | |
828 | ||
829 | list_for_each_entry_safe(p, t, &device->port_list, entry) { | |
830 | struct ib_port *port = container_of(p, struct ib_port, kobj); | |
831 | list_del(&p->entry); | |
832 | sysfs_remove_group(p, &pma_group); | |
833 | sysfs_remove_group(p, &port->pkey_group); | |
834 | sysfs_remove_group(p, &port->gid_group); | |
835 | kobject_put(p); | |
836 | } | |
837 | ||
838 | kobject_put(device->ports_parent); | |
839 | } | |
840 | ||
9a6edb60 RC |
841 | int ib_device_register_sysfs(struct ib_device *device, |
842 | int (*port_callback)(struct ib_device *, | |
843 | u8, struct kobject *)) | |
1da177e4 | 844 | { |
f4e91eb4 | 845 | struct device *class_dev = &device->dev; |
1da177e4 LT |
846 | int ret; |
847 | int i; | |
848 | ||
849 | class_dev->class = &ib_class; | |
f4e91eb4 | 850 | class_dev->parent = device->dma_device; |
02aa2a37 | 851 | dev_set_name(class_dev, "%s", device->name); |
3f7c58a0 | 852 | dev_set_drvdata(class_dev, device); |
1da177e4 LT |
853 | |
854 | INIT_LIST_HEAD(&device->port_list); | |
855 | ||
f4e91eb4 | 856 | ret = device_register(class_dev); |
1da177e4 LT |
857 | if (ret) |
858 | goto err; | |
859 | ||
860 | for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { | |
f4e91eb4 | 861 | ret = device_create_file(class_dev, ib_class_attributes[i]); |
1da177e4 LT |
862 | if (ret) |
863 | goto err_unregister; | |
864 | } | |
865 | ||
35be0681 | 866 | device->ports_parent = kobject_create_and_add("ports", |
373c0ea1 | 867 | &class_dev->kobj); |
c7482b81 LZ |
868 | if (!device->ports_parent) { |
869 | ret = -ENOMEM; | |
1da177e4 | 870 | goto err_put; |
c7482b81 | 871 | } |
1da177e4 | 872 | |
4139032b | 873 | if (rdma_cap_ib_switch(device)) { |
9a6edb60 | 874 | ret = add_port(device, 0, port_callback); |
1da177e4 LT |
875 | if (ret) |
876 | goto err_put; | |
877 | } else { | |
1da177e4 | 878 | for (i = 1; i <= device->phys_port_cnt; ++i) { |
9a6edb60 | 879 | ret = add_port(device, i, port_callback); |
1da177e4 LT |
880 | if (ret) |
881 | goto err_put; | |
882 | } | |
883 | } | |
884 | ||
7f624d02 SW |
885 | if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) { |
886 | ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group); | |
887 | if (ret) | |
888 | goto err_put; | |
889 | } | |
890 | ||
1da177e4 LT |
891 | return 0; |
892 | ||
893 | err_put: | |
584482ac | 894 | free_port_list_attributes(device); |
1da177e4 | 895 | |
1da177e4 | 896 | err_unregister: |
f4e91eb4 | 897 | device_unregister(class_dev); |
1da177e4 LT |
898 | |
899 | err: | |
900 | return ret; | |
901 | } | |
902 | ||
903 | void ib_device_unregister_sysfs(struct ib_device *device) | |
904 | { | |
9206dff1 | 905 | /* Hold kobject until ib_dealloc_device() */ |
584482ac HE |
906 | struct kobject *kobj_dev = kobject_get(&device->dev.kobj); |
907 | int i; | |
9206dff1 | 908 | |
584482ac HE |
909 | if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) |
910 | sysfs_remove_group(kobj_dev, &iw_stats_group); | |
911 | ||
912 | free_port_list_attributes(device); | |
913 | ||
914 | for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) | |
915 | device_remove_file(&device->dev, ib_class_attributes[i]); | |
1da177e4 | 916 | |
f4e91eb4 | 917 | device_unregister(&device->dev); |
1da177e4 LT |
918 | } |
919 | ||
920 | int ib_sysfs_setup(void) | |
921 | { | |
922 | return class_register(&ib_class); | |
923 | } | |
924 | ||
925 | void ib_sysfs_cleanup(void) | |
926 | { | |
927 | class_unregister(&ib_class); | |
928 | } |