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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm...
[deliverable/linux.git] / drivers / infiniband / core / sysfs.c
CommitLineData
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
43struct 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
51struct 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) \
59struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store)
60
61#define PORT_ATTR_RO(_name) \
62struct port_attribute port_attr_##_name = __ATTR_RO(_name)
63
64struct port_table_attribute {
d48593bf
DT		 65 struct port_attribute attr;
66 char name[8];
67 int index;
1da177e4
LT		 68};
69
70static 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 83static const struct sysfs_ops port_sysfs_ops = {
1da177e4
LT		 84 .show = port_attr_show
85};
86
87static 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
111static 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
124static 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
138static 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
151static 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
164static 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
177static 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
225static 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		 248static 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		 261static PORT_ATTR_RO(state);
262static PORT_ATTR_RO(lid);
263static PORT_ATTR_RO(lid_mask_count);
264static PORT_ATTR_RO(sm_lid);
265static PORT_ATTR_RO(sm_sl);
266static PORT_ATTR_RO(cap_mask);
267static PORT_ATTR_RO(rate);
268static PORT_ATTR_RO(phys_state);
8ad330a0 269static PORT_ATTR_RO(link_layer);
1da177e4
LT		 270
271static 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
284static 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
299static 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) \
315struct 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
320static 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;
329 ssize_t ret;
330
331 if (!p->ibdev->process_mad)
332 return sprintf(buf, "N/A (no PMA)\n");
333
de6eb66b 334 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
856c52a7 335 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
1da177e4
LT		 336 if (!in_mad || !out_mad) {
337 ret = -ENOMEM;
338 goto out;
339 }
340
1da177e4
LT		 341 in_mad->mad_hdr.base_version = 1;
342 in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT;
343 in_mad->mad_hdr.class_version = 1;
344 in_mad->mad_hdr.method = IB_MGMT_METHOD_GET;
345 in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */
346
347 in_mad->data[41] = p->port_num; /* PortSelect field */
348
349 if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY,
350 p->port_num, NULL, NULL, in_mad, out_mad) &
351 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) !=
352 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) {
353 ret = -EINVAL;
354 goto out;
355 }
356
357 switch (width) {
358 case 4:
359 ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >>
d8b9f23b 360 (4 - (offset % 8))) & 0xf);
1da177e4
LT		 361 break;
362 case 8:
363 ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]);
364 break;
365 case 16:
366 ret = sprintf(buf, "%u\n",
97f52eb4 367 be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8)));
1da177e4
LT		 368 break;
369 case 32:
370 ret = sprintf(buf, "%u\n",
97f52eb4 371 be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8)));
1da177e4
LT		 372 break;
373 default:
374 ret = 0;
375 }
376
377out:
378 kfree(in_mad);
379 kfree(out_mad);
380
381 return ret;
382}
383
384static PORT_PMA_ATTR(symbol_error , 0, 16, 32);
385static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48);
386static PORT_PMA_ATTR(link_downed , 2, 8, 56);
387static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64);
388static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80);
389static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96);
390static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112);
391static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128);
392static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136);
393static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152);
394static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156);
395static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176);
396static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192);
397static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224);
398static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256);
399static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288);
400
401static struct attribute *pma_attrs[] = {
402 &port_pma_attr_symbol_error.attr.attr,
403 &port_pma_attr_link_error_recovery.attr.attr,
404 &port_pma_attr_link_downed.attr.attr,
405 &port_pma_attr_port_rcv_errors.attr.attr,
406 &port_pma_attr_port_rcv_remote_physical_errors.attr.attr,
407 &port_pma_attr_port_rcv_switch_relay_errors.attr.attr,
408 &port_pma_attr_port_xmit_discards.attr.attr,
409 &port_pma_attr_port_xmit_constraint_errors.attr.attr,
410 &port_pma_attr_port_rcv_constraint_errors.attr.attr,
411 &port_pma_attr_local_link_integrity_errors.attr.attr,
412 &port_pma_attr_excessive_buffer_overrun_errors.attr.attr,
413 &port_pma_attr_VL15_dropped.attr.attr,
414 &port_pma_attr_port_xmit_data.attr.attr,
415 &port_pma_attr_port_rcv_data.attr.attr,
416 &port_pma_attr_port_xmit_packets.attr.attr,
417 &port_pma_attr_port_rcv_packets.attr.attr,
418 NULL
419};
420
421static struct attribute_group pma_group = {
422 .name = "counters",
423 .attrs = pma_attrs
424};
425
426static void ib_port_release(struct kobject *kobj)
427{
428 struct ib_port *p = container_of(kobj, struct ib_port, kobj);
429 struct attribute *a;
430 int i;
431
d48593bf 432 for (i = 0; (a = p->gid_group.attrs[i]); ++i)
1da177e4 433 kfree(a);
1da177e4 434
d48593bf
DT		 435 kfree(p->gid_group.attrs);
436
437 for (i = 0; (a = p->pkey_group.attrs[i]); ++i)
1da177e4 438 kfree(a);
1da177e4 439
d48593bf
DT		 440 kfree(p->pkey_group.attrs);
441
1da177e4
LT		 442 kfree(p);
443}
444
445static struct kobj_type port_type = {
446 .release = ib_port_release,
447 .sysfs_ops = &port_sysfs_ops,
448 .default_attrs = port_default_attrs
449};
450
f4e91eb4 451static void ib_device_release(struct device *device)
1da177e4 452{
f4e91eb4 453 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4
LT		 454
455 kfree(dev);
456}
457
f4e91eb4 458static int ib_device_uevent(struct device *device,
7eff2e7a 459 struct kobj_uevent_env *env)
1da177e4 460{
f4e91eb4 461 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4 462
7eff2e7a 463 if (add_uevent_var(env, "NAME=%s", dev->name))
1da177e4
LT		 464 return -ENOMEM;
465
466 /*
cf311cd4 467 * It would be nice to pass the node GUID with the event...
1da177e4
LT		 468 */
469
1da177e4
LT		 470 return 0;
471}
472
d48593bf
DT		 473static struct attribute **
474alloc_group_attrs(ssize_t (*show)(struct ib_port *,
475 struct port_attribute *, char *buf),
476 int len)
1da177e4 477{
d48593bf
DT		 478 struct attribute **tab_attr;
479 struct port_table_attribute *element;
1da177e4 480 int i;
1da177e4 481
d48593bf
DT		 482 tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL);
483 if (!tab_attr)
484 return NULL;
1da177e4 485
d48593bf 486 for (i = 0; i < len; i++) {
82ca76b6 487 element = kzalloc(sizeof(struct port_table_attribute),
d48593bf
DT		 488 GFP_KERNEL);
489 if (!element)
1da177e4 490 goto err;
1da177e4 491
d48593bf 492 if (snprintf(element->name, sizeof(element->name),
048975ac
RD		 493 "%d", i) >= sizeof(element->name)) {
494 kfree(element);
1da177e4 495 goto err;
048975ac 496 }
1da177e4 497
d48593bf
DT		 498 element->attr.attr.name = element->name;
499 element->attr.attr.mode = S_IRUGO;
d48593bf
DT		 500 element->attr.show = show;
501 element->index = i;
21e3bde9 502 sysfs_attr_init(&element->attr.attr);
1da177e4 503
d48593bf 504 tab_attr[i] = &element->attr.attr;
1da177e4
LT		 505 }
506
d48593bf 507 return tab_attr;
1da177e4 508
d48593bf
DT		 509err:
510 while (--i >= 0)
511 kfree(tab_attr[i]);
512 kfree(tab_attr);
513 return NULL;
1da177e4
LT		 514}
515
9a6edb60
RC		 516static int add_port(struct ib_device *device, int port_num,
517 int (*port_callback)(struct ib_device *,
518 u8, struct kobject *))
1da177e4
LT		 519{
520 struct ib_port *p;
521 struct ib_port_attr attr;
522 int i;
523 int ret;
524
525 ret = ib_query_port(device, port_num, &attr);
526 if (ret)
527 return ret;
528
de6eb66b 529 p = kzalloc(sizeof *p, GFP_KERNEL);
1da177e4
LT		 530 if (!p)
531 return -ENOMEM;
1da177e4
LT		 532
533 p->ibdev = device;
534 p->port_num = port_num;
1da177e4 535
35be0681
GKH		 536 ret = kobject_init_and_add(&p->kobj, &port_type,
537 kobject_get(device->ports_parent),
538 "%d", port_num);
1da177e4
LT		 539 if (ret)
540 goto err_put;
541
542 ret = sysfs_create_group(&p->kobj, &pma_group);
543 if (ret)
544 goto err_put;
545
1da177e4 546 p->gid_group.name = "gids";
d48593bf
DT		 547 p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len);
548 if (!p->gid_group.attrs)
549 goto err_remove_pma;
1da177e4
LT		 550
551 ret = sysfs_create_group(&p->kobj, &p->gid_group);
552 if (ret)
553 goto err_free_gid;
554
1da177e4 555 p->pkey_group.name = "pkeys";
d48593bf
DT		 556 p->pkey_group.attrs = alloc_group_attrs(show_port_pkey,
557 attr.pkey_tbl_len);
558 if (!p->pkey_group.attrs)
559 goto err_remove_gid;
1da177e4
LT		 560
561 ret = sysfs_create_group(&p->kobj, &p->pkey_group);
562 if (ret)
563 goto err_free_pkey;
564
9a6edb60
RC		 565 if (port_callback) {
566 ret = port_callback(device, port_num, &p->kobj);
567 if (ret)
568 goto err_remove_pkey;
569 }
570
1da177e4
LT		 571 list_add_tail(&p->kobj.entry, &device->port_list);
572
35be0681 573 kobject_uevent(&p->kobj, KOBJ_ADD);
1da177e4
LT		 574 return 0;
575
9a6edb60
RC		 576err_remove_pkey:
577 sysfs_remove_group(&p->kobj, &p->pkey_group);
578
1da177e4 579err_free_pkey:
d48593bf
DT		 580 for (i = 0; i < attr.pkey_tbl_len; ++i)
581 kfree(p->pkey_group.attrs[i]);
1da177e4 582
d48593bf 583 kfree(p->pkey_group.attrs);
1da177e4
LT		 584
585err_remove_gid:
586 sysfs_remove_group(&p->kobj, &p->gid_group);
587
588err_free_gid:
d48593bf
DT		 589 for (i = 0; i < attr.gid_tbl_len; ++i)
590 kfree(p->gid_group.attrs[i]);
1da177e4 591
d48593bf 592 kfree(p->gid_group.attrs);
1da177e4
LT		 593
594err_remove_pma:
595 sysfs_remove_group(&p->kobj, &pma_group);
596
597err_put:
35be0681 598 kobject_put(device->ports_parent);
1da177e4
LT		 599 kfree(p);
600 return ret;
601}
602
f4e91eb4
TJ		 603static ssize_t show_node_type(struct device *device,
604 struct device_attribute *attr, char *buf)
1da177e4 605{
f4e91eb4 606 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4
LT		 607
608 switch (dev->node_type) {
07ebafba
TT		 609 case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type);
610 case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type);
611 case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type);
612 case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type);
613 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type);
1da177e4
LT		 614 }
615}
616
f4e91eb4
TJ		 617static ssize_t show_sys_image_guid(struct device *device,
618 struct device_attribute *dev_attr, char *buf)
1da177e4 619{
f4e91eb4 620 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4
LT		 621 struct ib_device_attr attr;
622 ssize_t ret;
623
624 ret = ib_query_device(dev, &attr);
625 if (ret)
626 return ret;
627
628 return sprintf(buf, "%04x:%04x:%04x:%04x\n",
97f52eb4
SH		 629 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]),
630 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]),
631 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]),
632 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3]));
1da177e4
LT		 633}
634
f4e91eb4
TJ		 635static ssize_t show_node_guid(struct device *device,
636 struct device_attribute *attr, char *buf)
1da177e4 637{
f4e91eb4 638 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4 639
1da177e4 640 return sprintf(buf, "%04x:%04x:%04x:%04x\n",
cf311cd4
SH		 641 be16_to_cpu(((__be16 *) &dev->node_guid)[0]),
642 be16_to_cpu(((__be16 *) &dev->node_guid)[1]),
643 be16_to_cpu(((__be16 *) &dev->node_guid)[2]),
644 be16_to_cpu(((__be16 *) &dev->node_guid)[3]));
1da177e4
LT		 645}
646
f4e91eb4
TJ		 647static ssize_t show_node_desc(struct device *device,
648 struct device_attribute *attr, char *buf)
c5bcbbb9 649{
f4e91eb4 650 struct ib_device *dev = container_of(device, struct ib_device, dev);
c5bcbbb9
RD		 651
652 return sprintf(buf, "%.64s\n", dev->node_desc);
653}
654
f4e91eb4
TJ		 655static ssize_t set_node_desc(struct device *device,
656 struct device_attribute *attr,
657 const char *buf, size_t count)
c5bcbbb9 658{
f4e91eb4 659 struct ib_device *dev = container_of(device, struct ib_device, dev);
c5bcbbb9
RD		 660 struct ib_device_modify desc = {};
661 int ret;
662
663 if (!dev->modify_device)
664 return -EIO;
665
666 memcpy(desc.node_desc, buf, min_t(int, count, 64));
667 ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc);
668 if (ret)
669 return ret;
670
671 return count;
672}
673
f4e91eb4
TJ		 674static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
675static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
676static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
677static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc);
678
679static struct device_attribute *ib_class_attributes[] = {
680 &dev_attr_node_type,
681 &dev_attr_sys_image_guid,
682 &dev_attr_node_guid,
683 &dev_attr_node_desc
1da177e4
LT		 684};
685
686static struct class ib_class = {
687 .name = "infiniband",
f4e91eb4
TJ		 688 .dev_release = ib_device_release,
689 .dev_uevent = ib_device_uevent,
1da177e4
LT		 690};
691
7f624d02
SW		 692/* Show a given an attribute in the statistics group */
693static ssize_t show_protocol_stat(const struct device *device,
694 struct device_attribute *attr, char *buf,
695 unsigned offset)
696{
697 struct ib_device *dev = container_of(device, struct ib_device, dev);
698 union rdma_protocol_stats stats;
699 ssize_t ret;
700
701 ret = dev->get_protocol_stats(dev, &stats);
702 if (ret)
703 return ret;
704
705 return sprintf(buf, "%llu\n",
706 (unsigned long long) ((u64 *) &stats)[offset]);
707}
708
709/* generate a read-only iwarp statistics attribute */
710#define IW_STATS_ENTRY(name) \
711static ssize_t show_##name(struct device *device, \
712 struct device_attribute *attr, char *buf) \
713{ \
714 return show_protocol_stat(device, attr, buf, \
715 offsetof(struct iw_protocol_stats, name) / \
716 sizeof (u64)); \
717} \
718static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
719
720IW_STATS_ENTRY(ipInReceives);
721IW_STATS_ENTRY(ipInHdrErrors);
722IW_STATS_ENTRY(ipInTooBigErrors);
723IW_STATS_ENTRY(ipInNoRoutes);
724IW_STATS_ENTRY(ipInAddrErrors);
725IW_STATS_ENTRY(ipInUnknownProtos);
726IW_STATS_ENTRY(ipInTruncatedPkts);
727IW_STATS_ENTRY(ipInDiscards);
728IW_STATS_ENTRY(ipInDelivers);
729IW_STATS_ENTRY(ipOutForwDatagrams);
730IW_STATS_ENTRY(ipOutRequests);
731IW_STATS_ENTRY(ipOutDiscards);
732IW_STATS_ENTRY(ipOutNoRoutes);
733IW_STATS_ENTRY(ipReasmTimeout);
734IW_STATS_ENTRY(ipReasmReqds);
735IW_STATS_ENTRY(ipReasmOKs);
736IW_STATS_ENTRY(ipReasmFails);
737IW_STATS_ENTRY(ipFragOKs);
738IW_STATS_ENTRY(ipFragFails);
739IW_STATS_ENTRY(ipFragCreates);
740IW_STATS_ENTRY(ipInMcastPkts);
741IW_STATS_ENTRY(ipOutMcastPkts);
742IW_STATS_ENTRY(ipInBcastPkts);
743IW_STATS_ENTRY(ipOutBcastPkts);
744IW_STATS_ENTRY(tcpRtoAlgorithm);
745IW_STATS_ENTRY(tcpRtoMin);
746IW_STATS_ENTRY(tcpRtoMax);
747IW_STATS_ENTRY(tcpMaxConn);
748IW_STATS_ENTRY(tcpActiveOpens);
749IW_STATS_ENTRY(tcpPassiveOpens);
750IW_STATS_ENTRY(tcpAttemptFails);
751IW_STATS_ENTRY(tcpEstabResets);
752IW_STATS_ENTRY(tcpCurrEstab);
753IW_STATS_ENTRY(tcpInSegs);
754IW_STATS_ENTRY(tcpOutSegs);
755IW_STATS_ENTRY(tcpRetransSegs);
756IW_STATS_ENTRY(tcpInErrs);
757IW_STATS_ENTRY(tcpOutRsts);
758
759static struct attribute *iw_proto_stats_attrs[] = {
760 &dev_attr_ipInReceives.attr,
761 &dev_attr_ipInHdrErrors.attr,
762 &dev_attr_ipInTooBigErrors.attr,
763 &dev_attr_ipInNoRoutes.attr,
764 &dev_attr_ipInAddrErrors.attr,
765 &dev_attr_ipInUnknownProtos.attr,
766 &dev_attr_ipInTruncatedPkts.attr,
767 &dev_attr_ipInDiscards.attr,
768 &dev_attr_ipInDelivers.attr,
769 &dev_attr_ipOutForwDatagrams.attr,
770 &dev_attr_ipOutRequests.attr,
771 &dev_attr_ipOutDiscards.attr,
772 &dev_attr_ipOutNoRoutes.attr,
773 &dev_attr_ipReasmTimeout.attr,
774 &dev_attr_ipReasmReqds.attr,
775 &dev_attr_ipReasmOKs.attr,
776 &dev_attr_ipReasmFails.attr,
777 &dev_attr_ipFragOKs.attr,
778 &dev_attr_ipFragFails.attr,
779 &dev_attr_ipFragCreates.attr,
780 &dev_attr_ipInMcastPkts.attr,
781 &dev_attr_ipOutMcastPkts.attr,
782 &dev_attr_ipInBcastPkts.attr,
783 &dev_attr_ipOutBcastPkts.attr,
784 &dev_attr_tcpRtoAlgorithm.attr,
785 &dev_attr_tcpRtoMin.attr,
786 &dev_attr_tcpRtoMax.attr,
787 &dev_attr_tcpMaxConn.attr,
788 &dev_attr_tcpActiveOpens.attr,
789 &dev_attr_tcpPassiveOpens.attr,
790 &dev_attr_tcpAttemptFails.attr,
791 &dev_attr_tcpEstabResets.attr,
792 &dev_attr_tcpCurrEstab.attr,
793 &dev_attr_tcpInSegs.attr,
794 &dev_attr_tcpOutSegs.attr,
795 &dev_attr_tcpRetransSegs.attr,
796 &dev_attr_tcpInErrs.attr,
797 &dev_attr_tcpOutRsts.attr,
798 NULL
799};
800
801static struct attribute_group iw_stats_group = {
802 .name = "proto_stats",
803 .attrs = iw_proto_stats_attrs,
804};
805
9a6edb60
RC		 806int ib_device_register_sysfs(struct ib_device *device,
807 int (*port_callback)(struct ib_device *,
808 u8, struct kobject *))
1da177e4 809{
f4e91eb4 810 struct device *class_dev = &device->dev;
1da177e4
LT		 811 int ret;
812 int i;
813
814 class_dev->class = &ib_class;
f4e91eb4 815 class_dev->parent = device->dma_device;
d927e38c 816 dev_set_name(class_dev, device->name);
3f7c58a0 817 dev_set_drvdata(class_dev, device);
1da177e4
LT		 818
819 INIT_LIST_HEAD(&device->port_list);
820
f4e91eb4 821 ret = device_register(class_dev);
1da177e4
LT		 822 if (ret)
823 goto err;
824
825 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) {
f4e91eb4 826 ret = device_create_file(class_dev, ib_class_attributes[i]);
1da177e4
LT		 827 if (ret)
828 goto err_unregister;
829 }
830
35be0681
GKH		 831 device->ports_parent = kobject_create_and_add("ports",
832 kobject_get(&class_dev->kobj));
c7482b81
LZ		 833 if (!device->ports_parent) {
834 ret = -ENOMEM;
1da177e4 835 goto err_put;
c7482b81 836 }
1da177e4 837
07ebafba 838 if (device->node_type == RDMA_NODE_IB_SWITCH) {
9a6edb60 839 ret = add_port(device, 0, port_callback);
1da177e4
LT		 840 if (ret)
841 goto err_put;
842 } else {
1da177e4 843 for (i = 1; i <= device->phys_port_cnt; ++i) {
9a6edb60 844 ret = add_port(device, i, port_callback);
1da177e4
LT		 845 if (ret)
846 goto err_put;
847 }
848 }
849
7f624d02
SW		 850 if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) {
851 ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group);
852 if (ret)
853 goto err_put;
854 }
855
1da177e4
LT		 856 return 0;
857
858err_put:
859 {
860 struct kobject *p, *t;
861 struct ib_port *port;
862
863 list_for_each_entry_safe(p, t, &device->port_list, entry) {
864 list_del(&p->entry);
865 port = container_of(p, struct ib_port, kobj);
866 sysfs_remove_group(p, &pma_group);
867 sysfs_remove_group(p, &port->pkey_group);
868 sysfs_remove_group(p, &port->gid_group);
c10997f6 869 kobject_put(p);
1da177e4
LT		 870 }
871 }
872
873 kobject_put(&class_dev->kobj);
874
875err_unregister:
f4e91eb4 876 device_unregister(class_dev);
1da177e4
LT		 877
878err:
879 return ret;
880}
881
882void ib_device_unregister_sysfs(struct ib_device *device)
883{
884 struct kobject *p, *t;
885 struct ib_port *port;
886
9206dff1
RD		 887 /* Hold kobject until ib_dealloc_device() */
888 kobject_get(&device->dev.kobj);
889
1da177e4
LT		 890 list_for_each_entry_safe(p, t, &device->port_list, entry) {
891 list_del(&p->entry);
892 port = container_of(p, struct ib_port, kobj);
893 sysfs_remove_group(p, &pma_group);
894 sysfs_remove_group(p, &port->pkey_group);
895 sysfs_remove_group(p, &port->gid_group);
c10997f6 896 kobject_put(p);
1da177e4
LT		 897 }
898
c10997f6 899 kobject_put(device->ports_parent);
f4e91eb4 900 device_unregister(&device->dev);
1da177e4
LT		 901}
902
903int ib_sysfs_setup(void)
904{
905 return class_register(&ib_class);
906}
907
908void ib_sysfs_cleanup(void)
909{
910 class_unregister(&ib_class);
911}
Linux kernel - Deliverables
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