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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 | ||
69 | static ssize_t port_attr_show(struct kobject *kobj, | |
70 | struct attribute *attr, char *buf) | |
71 | { | |
72 | struct port_attribute *port_attr = | |
73 | container_of(attr, struct port_attribute, attr); | |
74 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); | |
75 | ||
76 | if (!port_attr->show) | |
70f2817a | 77 | return -EIO; |
1da177e4 LT |
78 | |
79 | return port_attr->show(p, port_attr, buf); | |
80 | } | |
81 | ||
52cf25d0 | 82 | static const struct sysfs_ops port_sysfs_ops = { |
1da177e4 LT |
83 | .show = port_attr_show |
84 | }; | |
85 | ||
86 | static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, | |
87 | char *buf) | |
88 | { | |
89 | struct ib_port_attr attr; | |
90 | ssize_t ret; | |
91 | ||
92 | static const char *state_name[] = { | |
93 | [IB_PORT_NOP] = "NOP", | |
94 | [IB_PORT_DOWN] = "DOWN", | |
95 | [IB_PORT_INIT] = "INIT", | |
96 | [IB_PORT_ARMED] = "ARMED", | |
97 | [IB_PORT_ACTIVE] = "ACTIVE", | |
98 | [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" | |
99 | }; | |
100 | ||
101 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
102 | if (ret) | |
103 | return ret; | |
104 | ||
105 | return sprintf(buf, "%d: %s\n", attr.state, | |
048975ac | 106 | attr.state >= 0 && attr.state < ARRAY_SIZE(state_name) ? |
1da177e4 LT |
107 | state_name[attr.state] : "UNKNOWN"); |
108 | } | |
109 | ||
110 | static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, | |
111 | char *buf) | |
112 | { | |
113 | struct ib_port_attr attr; | |
114 | ssize_t ret; | |
115 | ||
116 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
117 | if (ret) | |
118 | return ret; | |
119 | ||
120 | return sprintf(buf, "0x%x\n", attr.lid); | |
121 | } | |
122 | ||
123 | static ssize_t lid_mask_count_show(struct ib_port *p, | |
124 | struct port_attribute *unused, | |
125 | char *buf) | |
126 | { | |
127 | struct ib_port_attr attr; | |
128 | ssize_t ret; | |
129 | ||
130 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
131 | if (ret) | |
132 | return ret; | |
133 | ||
134 | return sprintf(buf, "%d\n", attr.lmc); | |
135 | } | |
136 | ||
137 | static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, | |
138 | char *buf) | |
139 | { | |
140 | struct ib_port_attr attr; | |
141 | ssize_t ret; | |
142 | ||
143 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
144 | if (ret) | |
145 | return ret; | |
146 | ||
147 | return sprintf(buf, "0x%x\n", attr.sm_lid); | |
148 | } | |
149 | ||
150 | static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, | |
151 | char *buf) | |
152 | { | |
153 | struct ib_port_attr attr; | |
154 | ssize_t ret; | |
155 | ||
156 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
157 | if (ret) | |
158 | return ret; | |
159 | ||
160 | return sprintf(buf, "%d\n", attr.sm_sl); | |
161 | } | |
162 | ||
163 | static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, | |
164 | char *buf) | |
165 | { | |
166 | struct ib_port_attr attr; | |
167 | ssize_t ret; | |
168 | ||
169 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
170 | if (ret) | |
171 | return ret; | |
172 | ||
173 | return sprintf(buf, "0x%08x\n", attr.port_cap_flags); | |
174 | } | |
175 | ||
176 | static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, | |
177 | char *buf) | |
178 | { | |
179 | struct ib_port_attr attr; | |
180 | char *speed = ""; | |
181 | int rate; | |
182 | ssize_t ret; | |
183 | ||
184 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
185 | if (ret) | |
186 | return ret; | |
187 | ||
188 | switch (attr.active_speed) { | |
189 | case 2: speed = " DDR"; break; | |
190 | case 4: speed = " QDR"; break; | |
191 | } | |
192 | ||
193 | rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; | |
194 | if (rate < 0) | |
195 | return -EINVAL; | |
196 | ||
197 | return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", | |
198 | rate / 10, rate % 10 ? ".5" : "", | |
199 | ib_width_enum_to_int(attr.active_width), speed); | |
200 | } | |
201 | ||
202 | static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, | |
203 | char *buf) | |
204 | { | |
205 | struct ib_port_attr attr; | |
206 | ||
207 | ssize_t ret; | |
208 | ||
209 | ret = ib_query_port(p->ibdev, p->port_num, &attr); | |
210 | if (ret) | |
211 | return ret; | |
212 | ||
213 | switch (attr.phys_state) { | |
214 | case 1: return sprintf(buf, "1: Sleep\n"); | |
215 | case 2: return sprintf(buf, "2: Polling\n"); | |
216 | case 3: return sprintf(buf, "3: Disabled\n"); | |
217 | case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); | |
218 | case 5: return sprintf(buf, "5: LinkUp\n"); | |
219 | case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); | |
220 | case 7: return sprintf(buf, "7: Phy Test\n"); | |
221 | default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); | |
222 | } | |
223 | } | |
224 | ||
8ad330a0 EC |
225 | static ssize_t link_layer_show(struct ib_port *p, struct port_attribute *unused, |
226 | char *buf) | |
227 | { | |
228 | switch (rdma_port_get_link_layer(p->ibdev, p->port_num)) { | |
229 | case IB_LINK_LAYER_INFINIBAND: | |
230 | return sprintf(buf, "%s\n", "InfiniBand"); | |
231 | case IB_LINK_LAYER_ETHERNET: | |
232 | return sprintf(buf, "%s\n", "Ethernet"); | |
233 | default: | |
234 | return sprintf(buf, "%s\n", "Unknown"); | |
235 | } | |
236 | } | |
237 | ||
1da177e4 LT |
238 | static PORT_ATTR_RO(state); |
239 | static PORT_ATTR_RO(lid); | |
240 | static PORT_ATTR_RO(lid_mask_count); | |
241 | static PORT_ATTR_RO(sm_lid); | |
242 | static PORT_ATTR_RO(sm_sl); | |
243 | static PORT_ATTR_RO(cap_mask); | |
244 | static PORT_ATTR_RO(rate); | |
245 | static PORT_ATTR_RO(phys_state); | |
8ad330a0 | 246 | static PORT_ATTR_RO(link_layer); |
1da177e4 LT |
247 | |
248 | static struct attribute *port_default_attrs[] = { | |
249 | &port_attr_state.attr, | |
250 | &port_attr_lid.attr, | |
251 | &port_attr_lid_mask_count.attr, | |
252 | &port_attr_sm_lid.attr, | |
253 | &port_attr_sm_sl.attr, | |
254 | &port_attr_cap_mask.attr, | |
255 | &port_attr_rate.attr, | |
256 | &port_attr_phys_state.attr, | |
8ad330a0 | 257 | &port_attr_link_layer.attr, |
1da177e4 LT |
258 | NULL |
259 | }; | |
260 | ||
261 | static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, | |
262 | char *buf) | |
263 | { | |
264 | struct port_table_attribute *tab_attr = | |
265 | container_of(attr, struct port_table_attribute, attr); | |
266 | union ib_gid gid; | |
267 | ssize_t ret; | |
268 | ||
269 | ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); | |
270 | if (ret) | |
271 | return ret; | |
272 | ||
5b095d98 | 273 | return sprintf(buf, "%pI6\n", gid.raw); |
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; | |
21e3bde9 | 479 | sysfs_attr_init(&element->attr.attr); |
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 | ||
9a6edb60 RC |
493 | static int add_port(struct ib_device *device, int port_num, |
494 | int (*port_callback)(struct ib_device *, | |
495 | u8, struct kobject *)) | |
1da177e4 LT |
496 | { |
497 | struct ib_port *p; | |
498 | struct ib_port_attr attr; | |
499 | int i; | |
500 | int ret; | |
501 | ||
502 | ret = ib_query_port(device, port_num, &attr); | |
503 | if (ret) | |
504 | return ret; | |
505 | ||
de6eb66b | 506 | p = kzalloc(sizeof *p, GFP_KERNEL); |
1da177e4 LT |
507 | if (!p) |
508 | return -ENOMEM; | |
1da177e4 LT |
509 | |
510 | p->ibdev = device; | |
511 | p->port_num = port_num; | |
1da177e4 | 512 | |
35be0681 GKH |
513 | ret = kobject_init_and_add(&p->kobj, &port_type, |
514 | kobject_get(device->ports_parent), | |
515 | "%d", port_num); | |
1da177e4 LT |
516 | if (ret) |
517 | goto err_put; | |
518 | ||
519 | ret = sysfs_create_group(&p->kobj, &pma_group); | |
520 | if (ret) | |
521 | goto err_put; | |
522 | ||
1da177e4 | 523 | p->gid_group.name = "gids"; |
d48593bf DT |
524 | p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); |
525 | if (!p->gid_group.attrs) | |
526 | goto err_remove_pma; | |
1da177e4 LT |
527 | |
528 | ret = sysfs_create_group(&p->kobj, &p->gid_group); | |
529 | if (ret) | |
530 | goto err_free_gid; | |
531 | ||
1da177e4 | 532 | p->pkey_group.name = "pkeys"; |
d48593bf DT |
533 | p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, |
534 | attr.pkey_tbl_len); | |
535 | if (!p->pkey_group.attrs) | |
536 | goto err_remove_gid; | |
1da177e4 LT |
537 | |
538 | ret = sysfs_create_group(&p->kobj, &p->pkey_group); | |
539 | if (ret) | |
540 | goto err_free_pkey; | |
541 | ||
9a6edb60 RC |
542 | if (port_callback) { |
543 | ret = port_callback(device, port_num, &p->kobj); | |
544 | if (ret) | |
545 | goto err_remove_pkey; | |
546 | } | |
547 | ||
1da177e4 LT |
548 | list_add_tail(&p->kobj.entry, &device->port_list); |
549 | ||
35be0681 | 550 | kobject_uevent(&p->kobj, KOBJ_ADD); |
1da177e4 LT |
551 | return 0; |
552 | ||
9a6edb60 RC |
553 | err_remove_pkey: |
554 | sysfs_remove_group(&p->kobj, &p->pkey_group); | |
555 | ||
1da177e4 | 556 | err_free_pkey: |
d48593bf DT |
557 | for (i = 0; i < attr.pkey_tbl_len; ++i) |
558 | kfree(p->pkey_group.attrs[i]); | |
1da177e4 | 559 | |
d48593bf | 560 | kfree(p->pkey_group.attrs); |
1da177e4 LT |
561 | |
562 | err_remove_gid: | |
563 | sysfs_remove_group(&p->kobj, &p->gid_group); | |
564 | ||
565 | err_free_gid: | |
d48593bf DT |
566 | for (i = 0; i < attr.gid_tbl_len; ++i) |
567 | kfree(p->gid_group.attrs[i]); | |
1da177e4 | 568 | |
d48593bf | 569 | kfree(p->gid_group.attrs); |
1da177e4 LT |
570 | |
571 | err_remove_pma: | |
572 | sysfs_remove_group(&p->kobj, &pma_group); | |
573 | ||
574 | err_put: | |
35be0681 | 575 | kobject_put(device->ports_parent); |
1da177e4 LT |
576 | kfree(p); |
577 | return ret; | |
578 | } | |
579 | ||
f4e91eb4 TJ |
580 | static ssize_t show_node_type(struct device *device, |
581 | struct device_attribute *attr, char *buf) | |
1da177e4 | 582 | { |
f4e91eb4 | 583 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 LT |
584 | |
585 | switch (dev->node_type) { | |
07ebafba TT |
586 | case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); |
587 | case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); | |
588 | case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); | |
589 | case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); | |
590 | default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); | |
1da177e4 LT |
591 | } |
592 | } | |
593 | ||
f4e91eb4 TJ |
594 | static ssize_t show_sys_image_guid(struct device *device, |
595 | struct device_attribute *dev_attr, char *buf) | |
1da177e4 | 596 | { |
f4e91eb4 | 597 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 LT |
598 | struct ib_device_attr attr; |
599 | ssize_t ret; | |
600 | ||
601 | ret = ib_query_device(dev, &attr); | |
602 | if (ret) | |
603 | return ret; | |
604 | ||
605 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", | |
97f52eb4 SH |
606 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), |
607 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), | |
608 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), | |
609 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3])); | |
1da177e4 LT |
610 | } |
611 | ||
f4e91eb4 TJ |
612 | static ssize_t show_node_guid(struct device *device, |
613 | struct device_attribute *attr, char *buf) | |
1da177e4 | 614 | { |
f4e91eb4 | 615 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
1da177e4 | 616 | |
1da177e4 | 617 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", |
cf311cd4 SH |
618 | be16_to_cpu(((__be16 *) &dev->node_guid)[0]), |
619 | be16_to_cpu(((__be16 *) &dev->node_guid)[1]), | |
620 | be16_to_cpu(((__be16 *) &dev->node_guid)[2]), | |
621 | be16_to_cpu(((__be16 *) &dev->node_guid)[3])); | |
1da177e4 LT |
622 | } |
623 | ||
f4e91eb4 TJ |
624 | static ssize_t show_node_desc(struct device *device, |
625 | struct device_attribute *attr, char *buf) | |
c5bcbbb9 | 626 | { |
f4e91eb4 | 627 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
c5bcbbb9 RD |
628 | |
629 | return sprintf(buf, "%.64s\n", dev->node_desc); | |
630 | } | |
631 | ||
f4e91eb4 TJ |
632 | static ssize_t set_node_desc(struct device *device, |
633 | struct device_attribute *attr, | |
634 | const char *buf, size_t count) | |
c5bcbbb9 | 635 | { |
f4e91eb4 | 636 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
c5bcbbb9 RD |
637 | struct ib_device_modify desc = {}; |
638 | int ret; | |
639 | ||
640 | if (!dev->modify_device) | |
641 | return -EIO; | |
642 | ||
643 | memcpy(desc.node_desc, buf, min_t(int, count, 64)); | |
644 | ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc); | |
645 | if (ret) | |
646 | return ret; | |
647 | ||
648 | return count; | |
649 | } | |
650 | ||
f4e91eb4 TJ |
651 | static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); |
652 | static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); | |
653 | static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); | |
654 | static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc); | |
655 | ||
656 | static struct device_attribute *ib_class_attributes[] = { | |
657 | &dev_attr_node_type, | |
658 | &dev_attr_sys_image_guid, | |
659 | &dev_attr_node_guid, | |
660 | &dev_attr_node_desc | |
1da177e4 LT |
661 | }; |
662 | ||
663 | static struct class ib_class = { | |
664 | .name = "infiniband", | |
f4e91eb4 TJ |
665 | .dev_release = ib_device_release, |
666 | .dev_uevent = ib_device_uevent, | |
1da177e4 LT |
667 | }; |
668 | ||
7f624d02 SW |
669 | /* Show a given an attribute in the statistics group */ |
670 | static ssize_t show_protocol_stat(const struct device *device, | |
671 | struct device_attribute *attr, char *buf, | |
672 | unsigned offset) | |
673 | { | |
674 | struct ib_device *dev = container_of(device, struct ib_device, dev); | |
675 | union rdma_protocol_stats stats; | |
676 | ssize_t ret; | |
677 | ||
678 | ret = dev->get_protocol_stats(dev, &stats); | |
679 | if (ret) | |
680 | return ret; | |
681 | ||
682 | return sprintf(buf, "%llu\n", | |
683 | (unsigned long long) ((u64 *) &stats)[offset]); | |
684 | } | |
685 | ||
686 | /* generate a read-only iwarp statistics attribute */ | |
687 | #define IW_STATS_ENTRY(name) \ | |
688 | static ssize_t show_##name(struct device *device, \ | |
689 | struct device_attribute *attr, char *buf) \ | |
690 | { \ | |
691 | return show_protocol_stat(device, attr, buf, \ | |
692 | offsetof(struct iw_protocol_stats, name) / \ | |
693 | sizeof (u64)); \ | |
694 | } \ | |
695 | static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) | |
696 | ||
697 | IW_STATS_ENTRY(ipInReceives); | |
698 | IW_STATS_ENTRY(ipInHdrErrors); | |
699 | IW_STATS_ENTRY(ipInTooBigErrors); | |
700 | IW_STATS_ENTRY(ipInNoRoutes); | |
701 | IW_STATS_ENTRY(ipInAddrErrors); | |
702 | IW_STATS_ENTRY(ipInUnknownProtos); | |
703 | IW_STATS_ENTRY(ipInTruncatedPkts); | |
704 | IW_STATS_ENTRY(ipInDiscards); | |
705 | IW_STATS_ENTRY(ipInDelivers); | |
706 | IW_STATS_ENTRY(ipOutForwDatagrams); | |
707 | IW_STATS_ENTRY(ipOutRequests); | |
708 | IW_STATS_ENTRY(ipOutDiscards); | |
709 | IW_STATS_ENTRY(ipOutNoRoutes); | |
710 | IW_STATS_ENTRY(ipReasmTimeout); | |
711 | IW_STATS_ENTRY(ipReasmReqds); | |
712 | IW_STATS_ENTRY(ipReasmOKs); | |
713 | IW_STATS_ENTRY(ipReasmFails); | |
714 | IW_STATS_ENTRY(ipFragOKs); | |
715 | IW_STATS_ENTRY(ipFragFails); | |
716 | IW_STATS_ENTRY(ipFragCreates); | |
717 | IW_STATS_ENTRY(ipInMcastPkts); | |
718 | IW_STATS_ENTRY(ipOutMcastPkts); | |
719 | IW_STATS_ENTRY(ipInBcastPkts); | |
720 | IW_STATS_ENTRY(ipOutBcastPkts); | |
721 | IW_STATS_ENTRY(tcpRtoAlgorithm); | |
722 | IW_STATS_ENTRY(tcpRtoMin); | |
723 | IW_STATS_ENTRY(tcpRtoMax); | |
724 | IW_STATS_ENTRY(tcpMaxConn); | |
725 | IW_STATS_ENTRY(tcpActiveOpens); | |
726 | IW_STATS_ENTRY(tcpPassiveOpens); | |
727 | IW_STATS_ENTRY(tcpAttemptFails); | |
728 | IW_STATS_ENTRY(tcpEstabResets); | |
729 | IW_STATS_ENTRY(tcpCurrEstab); | |
730 | IW_STATS_ENTRY(tcpInSegs); | |
731 | IW_STATS_ENTRY(tcpOutSegs); | |
732 | IW_STATS_ENTRY(tcpRetransSegs); | |
733 | IW_STATS_ENTRY(tcpInErrs); | |
734 | IW_STATS_ENTRY(tcpOutRsts); | |
735 | ||
736 | static struct attribute *iw_proto_stats_attrs[] = { | |
737 | &dev_attr_ipInReceives.attr, | |
738 | &dev_attr_ipInHdrErrors.attr, | |
739 | &dev_attr_ipInTooBigErrors.attr, | |
740 | &dev_attr_ipInNoRoutes.attr, | |
741 | &dev_attr_ipInAddrErrors.attr, | |
742 | &dev_attr_ipInUnknownProtos.attr, | |
743 | &dev_attr_ipInTruncatedPkts.attr, | |
744 | &dev_attr_ipInDiscards.attr, | |
745 | &dev_attr_ipInDelivers.attr, | |
746 | &dev_attr_ipOutForwDatagrams.attr, | |
747 | &dev_attr_ipOutRequests.attr, | |
748 | &dev_attr_ipOutDiscards.attr, | |
749 | &dev_attr_ipOutNoRoutes.attr, | |
750 | &dev_attr_ipReasmTimeout.attr, | |
751 | &dev_attr_ipReasmReqds.attr, | |
752 | &dev_attr_ipReasmOKs.attr, | |
753 | &dev_attr_ipReasmFails.attr, | |
754 | &dev_attr_ipFragOKs.attr, | |
755 | &dev_attr_ipFragFails.attr, | |
756 | &dev_attr_ipFragCreates.attr, | |
757 | &dev_attr_ipInMcastPkts.attr, | |
758 | &dev_attr_ipOutMcastPkts.attr, | |
759 | &dev_attr_ipInBcastPkts.attr, | |
760 | &dev_attr_ipOutBcastPkts.attr, | |
761 | &dev_attr_tcpRtoAlgorithm.attr, | |
762 | &dev_attr_tcpRtoMin.attr, | |
763 | &dev_attr_tcpRtoMax.attr, | |
764 | &dev_attr_tcpMaxConn.attr, | |
765 | &dev_attr_tcpActiveOpens.attr, | |
766 | &dev_attr_tcpPassiveOpens.attr, | |
767 | &dev_attr_tcpAttemptFails.attr, | |
768 | &dev_attr_tcpEstabResets.attr, | |
769 | &dev_attr_tcpCurrEstab.attr, | |
770 | &dev_attr_tcpInSegs.attr, | |
771 | &dev_attr_tcpOutSegs.attr, | |
772 | &dev_attr_tcpRetransSegs.attr, | |
773 | &dev_attr_tcpInErrs.attr, | |
774 | &dev_attr_tcpOutRsts.attr, | |
775 | NULL | |
776 | }; | |
777 | ||
778 | static struct attribute_group iw_stats_group = { | |
779 | .name = "proto_stats", | |
780 | .attrs = iw_proto_stats_attrs, | |
781 | }; | |
782 | ||
9a6edb60 RC |
783 | int ib_device_register_sysfs(struct ib_device *device, |
784 | int (*port_callback)(struct ib_device *, | |
785 | u8, struct kobject *)) | |
1da177e4 | 786 | { |
f4e91eb4 | 787 | struct device *class_dev = &device->dev; |
1da177e4 LT |
788 | int ret; |
789 | int i; | |
790 | ||
791 | class_dev->class = &ib_class; | |
f4e91eb4 | 792 | class_dev->parent = device->dma_device; |
d927e38c | 793 | dev_set_name(class_dev, device->name); |
3f7c58a0 | 794 | dev_set_drvdata(class_dev, device); |
1da177e4 LT |
795 | |
796 | INIT_LIST_HEAD(&device->port_list); | |
797 | ||
f4e91eb4 | 798 | ret = device_register(class_dev); |
1da177e4 LT |
799 | if (ret) |
800 | goto err; | |
801 | ||
802 | for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { | |
f4e91eb4 | 803 | ret = device_create_file(class_dev, ib_class_attributes[i]); |
1da177e4 LT |
804 | if (ret) |
805 | goto err_unregister; | |
806 | } | |
807 | ||
35be0681 GKH |
808 | device->ports_parent = kobject_create_and_add("ports", |
809 | kobject_get(&class_dev->kobj)); | |
c7482b81 LZ |
810 | if (!device->ports_parent) { |
811 | ret = -ENOMEM; | |
1da177e4 | 812 | goto err_put; |
c7482b81 | 813 | } |
1da177e4 | 814 | |
07ebafba | 815 | if (device->node_type == RDMA_NODE_IB_SWITCH) { |
9a6edb60 | 816 | ret = add_port(device, 0, port_callback); |
1da177e4 LT |
817 | if (ret) |
818 | goto err_put; | |
819 | } else { | |
1da177e4 | 820 | for (i = 1; i <= device->phys_port_cnt; ++i) { |
9a6edb60 | 821 | ret = add_port(device, i, port_callback); |
1da177e4 LT |
822 | if (ret) |
823 | goto err_put; | |
824 | } | |
825 | } | |
826 | ||
7f624d02 SW |
827 | if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) { |
828 | ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group); | |
829 | if (ret) | |
830 | goto err_put; | |
831 | } | |
832 | ||
1da177e4 LT |
833 | return 0; |
834 | ||
835 | err_put: | |
836 | { | |
837 | struct kobject *p, *t; | |
838 | struct ib_port *port; | |
839 | ||
840 | list_for_each_entry_safe(p, t, &device->port_list, entry) { | |
841 | list_del(&p->entry); | |
842 | port = container_of(p, struct ib_port, kobj); | |
843 | sysfs_remove_group(p, &pma_group); | |
844 | sysfs_remove_group(p, &port->pkey_group); | |
845 | sysfs_remove_group(p, &port->gid_group); | |
c10997f6 | 846 | kobject_put(p); |
1da177e4 LT |
847 | } |
848 | } | |
849 | ||
850 | kobject_put(&class_dev->kobj); | |
851 | ||
852 | err_unregister: | |
f4e91eb4 | 853 | device_unregister(class_dev); |
1da177e4 LT |
854 | |
855 | err: | |
856 | return ret; | |
857 | } | |
858 | ||
859 | void ib_device_unregister_sysfs(struct ib_device *device) | |
860 | { | |
861 | struct kobject *p, *t; | |
862 | struct ib_port *port; | |
863 | ||
9206dff1 RD |
864 | /* Hold kobject until ib_dealloc_device() */ |
865 | kobject_get(&device->dev.kobj); | |
866 | ||
1da177e4 LT |
867 | list_for_each_entry_safe(p, t, &device->port_list, entry) { |
868 | list_del(&p->entry); | |
869 | port = container_of(p, struct ib_port, kobj); | |
870 | sysfs_remove_group(p, &pma_group); | |
871 | sysfs_remove_group(p, &port->pkey_group); | |
872 | sysfs_remove_group(p, &port->gid_group); | |
c10997f6 | 873 | kobject_put(p); |
1da177e4 LT |
874 | } |
875 | ||
c10997f6 | 876 | kobject_put(device->ports_parent); |
f4e91eb4 | 877 | device_unregister(&device->dev); |
1da177e4 LT |
878 | } |
879 | ||
880 | int ib_sysfs_setup(void) | |
881 | { | |
882 | return class_register(&ib_class); | |
883 | } | |
884 | ||
885 | void ib_sysfs_cleanup(void) | |
886 | { | |
887 | class_unregister(&ib_class); | |
888 | } |