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[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
TS		 37#include <linux/slab.h>
38#include <linux/string.h>
39
a4d61e84 40#include <rdma/ib_mad.h>
1da177e4
LT		 41
42struct 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
50struct 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) \
58struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store)
59
60#define PORT_ATTR_RO(_name) \
61struct port_attribute port_attr_##_name = __ATTR_RO(_name)
62
63struct port_table_attribute {
d48593bf
DT		 64 struct port_attribute attr;
65 char name[8];
66 int index;
1da177e4
LT		 67};
68
3cd96564 69static inline int ibdev_is_alive(const struct ib_device *dev)
ba8e9310
RD		 70{
71 return dev->reg_state == IB_DEV_REGISTERED;
72}
73
1da177e4
LT		 74static ssize_t port_attr_show(struct kobject *kobj,
75 struct attribute *attr, char *buf)
76{
77 struct port_attribute *port_attr =
78 container_of(attr, struct port_attribute, attr);
79 struct ib_port *p = container_of(kobj, struct ib_port, kobj);
80
81 if (!port_attr->show)
70f2817a 82 return -EIO;
ba8e9310
RD		 83 if (!ibdev_is_alive(p->ibdev))
84 return -ENODEV;
1da177e4
LT		 85
86 return port_attr->show(p, port_attr, buf);
87}
88
89static struct sysfs_ops port_sysfs_ops = {
90 .show = port_attr_show
91};
92
93static ssize_t state_show(struct ib_port *p, struct port_attribute *unused,
94 char *buf)
95{
96 struct ib_port_attr attr;
97 ssize_t ret;
98
99 static const char *state_name[] = {
100 [IB_PORT_NOP] = "NOP",
101 [IB_PORT_DOWN] = "DOWN",
102 [IB_PORT_INIT] = "INIT",
103 [IB_PORT_ARMED] = "ARMED",
104 [IB_PORT_ACTIVE] = "ACTIVE",
105 [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER"
106 };
107
108 ret = ib_query_port(p->ibdev, p->port_num, &attr);
109 if (ret)
110 return ret;
111
112 return sprintf(buf, "%d: %s\n", attr.state,
048975ac 113 attr.state >= 0 && attr.state < ARRAY_SIZE(state_name) ?
1da177e4
LT		 114 state_name[attr.state] : "UNKNOWN");
115}
116
117static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused,
118 char *buf)
119{
120 struct ib_port_attr attr;
121 ssize_t ret;
122
123 ret = ib_query_port(p->ibdev, p->port_num, &attr);
124 if (ret)
125 return ret;
126
127 return sprintf(buf, "0x%x\n", attr.lid);
128}
129
130static ssize_t lid_mask_count_show(struct ib_port *p,
131 struct port_attribute *unused,
132 char *buf)
133{
134 struct ib_port_attr attr;
135 ssize_t ret;
136
137 ret = ib_query_port(p->ibdev, p->port_num, &attr);
138 if (ret)
139 return ret;
140
141 return sprintf(buf, "%d\n", attr.lmc);
142}
143
144static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused,
145 char *buf)
146{
147 struct ib_port_attr attr;
148 ssize_t ret;
149
150 ret = ib_query_port(p->ibdev, p->port_num, &attr);
151 if (ret)
152 return ret;
153
154 return sprintf(buf, "0x%x\n", attr.sm_lid);
155}
156
157static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused,
158 char *buf)
159{
160 struct ib_port_attr attr;
161 ssize_t ret;
162
163 ret = ib_query_port(p->ibdev, p->port_num, &attr);
164 if (ret)
165 return ret;
166
167 return sprintf(buf, "%d\n", attr.sm_sl);
168}
169
170static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused,
171 char *buf)
172{
173 struct ib_port_attr attr;
174 ssize_t ret;
175
176 ret = ib_query_port(p->ibdev, p->port_num, &attr);
177 if (ret)
178 return ret;
179
180 return sprintf(buf, "0x%08x\n", attr.port_cap_flags);
181}
182
183static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused,
184 char *buf)
185{
186 struct ib_port_attr attr;
187 char *speed = "";
188 int rate;
189 ssize_t ret;
190
191 ret = ib_query_port(p->ibdev, p->port_num, &attr);
192 if (ret)
193 return ret;
194
195 switch (attr.active_speed) {
196 case 2: speed = " DDR"; break;
197 case 4: speed = " QDR"; break;
198 }
199
200 rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed;
201 if (rate < 0)
202 return -EINVAL;
203
204 return sprintf(buf, "%d%s Gb/sec (%dX%s)\n",
205 rate / 10, rate % 10 ? ".5" : "",
206 ib_width_enum_to_int(attr.active_width), speed);
207}
208
209static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused,
210 char *buf)
211{
212 struct ib_port_attr attr;
213
214 ssize_t ret;
215
216 ret = ib_query_port(p->ibdev, p->port_num, &attr);
217 if (ret)
218 return ret;
219
220 switch (attr.phys_state) {
221 case 1: return sprintf(buf, "1: Sleep\n");
222 case 2: return sprintf(buf, "2: Polling\n");
223 case 3: return sprintf(buf, "3: Disabled\n");
224 case 4: return sprintf(buf, "4: PortConfigurationTraining\n");
225 case 5: return sprintf(buf, "5: LinkUp\n");
226 case 6: return sprintf(buf, "6: LinkErrorRecovery\n");
227 case 7: return sprintf(buf, "7: Phy Test\n");
228 default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state);
229 }
230}
231
232static PORT_ATTR_RO(state);
233static PORT_ATTR_RO(lid);
234static PORT_ATTR_RO(lid_mask_count);
235static PORT_ATTR_RO(sm_lid);
236static PORT_ATTR_RO(sm_sl);
237static PORT_ATTR_RO(cap_mask);
238static PORT_ATTR_RO(rate);
239static PORT_ATTR_RO(phys_state);
240
241static struct attribute *port_default_attrs[] = {
242 &port_attr_state.attr,
243 &port_attr_lid.attr,
244 &port_attr_lid_mask_count.attr,
245 &port_attr_sm_lid.attr,
246 &port_attr_sm_sl.attr,
247 &port_attr_cap_mask.attr,
248 &port_attr_rate.attr,
249 &port_attr_phys_state.attr,
250 NULL
251};
252
253static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr,
254 char *buf)
255{
256 struct port_table_attribute *tab_attr =
257 container_of(attr, struct port_table_attribute, attr);
258 union ib_gid gid;
259 ssize_t ret;
260
261 ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid);
262 if (ret)
263 return ret;
264
5b095d98 265 return sprintf(buf, "%pI6\n", gid.raw);
1da177e4
LT		 266}
267
268static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr,
269 char *buf)
270{
271 struct port_table_attribute *tab_attr =
272 container_of(attr, struct port_table_attribute, attr);
273 u16 pkey;
274 ssize_t ret;
275
276 ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey);
277 if (ret)
278 return ret;
279
280 return sprintf(buf, "0x%04x\n", pkey);
281}
282
283#define PORT_PMA_ATTR(_name, _counter, _width, _offset) \
284struct port_table_attribute port_pma_attr_##_name = { \
285 .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \
286 .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \
287}
288
289static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr,
290 char *buf)
291{
292 struct port_table_attribute *tab_attr =
293 container_of(attr, struct port_table_attribute, attr);
294 int offset = tab_attr->index & 0xffff;
295 int width = (tab_attr->index >> 16) & 0xff;
296 struct ib_mad *in_mad = NULL;
297 struct ib_mad *out_mad = NULL;
298 ssize_t ret;
299
300 if (!p->ibdev->process_mad)
301 return sprintf(buf, "N/A (no PMA)\n");
302
de6eb66b 303 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
856c52a7 304 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
1da177e4
LT		 305 if (!in_mad || !out_mad) {
306 ret = -ENOMEM;
307 goto out;
308 }
309
1da177e4
LT		 310 in_mad->mad_hdr.base_version = 1;
311 in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT;
312 in_mad->mad_hdr.class_version = 1;
313 in_mad->mad_hdr.method = IB_MGMT_METHOD_GET;
314 in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */
315
316 in_mad->data[41] = p->port_num; /* PortSelect field */
317
318 if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY,
319 p->port_num, NULL, NULL, in_mad, out_mad) &
320 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) !=
321 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) {
322 ret = -EINVAL;
323 goto out;
324 }
325
326 switch (width) {
327 case 4:
328 ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >>
d8b9f23b 329 (4 - (offset % 8))) & 0xf);
1da177e4
LT		 330 break;
331 case 8:
332 ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]);
333 break;
334 case 16:
335 ret = sprintf(buf, "%u\n",
97f52eb4 336 be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8)));
1da177e4
LT		 337 break;
338 case 32:
339 ret = sprintf(buf, "%u\n",
97f52eb4 340 be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8)));
1da177e4
LT		 341 break;
342 default:
343 ret = 0;
344 }
345
346out:
347 kfree(in_mad);
348 kfree(out_mad);
349
350 return ret;
351}
352
353static PORT_PMA_ATTR(symbol_error , 0, 16, 32);
354static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48);
355static PORT_PMA_ATTR(link_downed , 2, 8, 56);
356static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64);
357static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80);
358static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96);
359static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112);
360static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128);
361static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136);
362static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152);
363static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156);
364static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176);
365static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192);
366static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224);
367static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256);
368static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288);
369
370static struct attribute *pma_attrs[] = {
371 &port_pma_attr_symbol_error.attr.attr,
372 &port_pma_attr_link_error_recovery.attr.attr,
373 &port_pma_attr_link_downed.attr.attr,
374 &port_pma_attr_port_rcv_errors.attr.attr,
375 &port_pma_attr_port_rcv_remote_physical_errors.attr.attr,
376 &port_pma_attr_port_rcv_switch_relay_errors.attr.attr,
377 &port_pma_attr_port_xmit_discards.attr.attr,
378 &port_pma_attr_port_xmit_constraint_errors.attr.attr,
379 &port_pma_attr_port_rcv_constraint_errors.attr.attr,
380 &port_pma_attr_local_link_integrity_errors.attr.attr,
381 &port_pma_attr_excessive_buffer_overrun_errors.attr.attr,
382 &port_pma_attr_VL15_dropped.attr.attr,
383 &port_pma_attr_port_xmit_data.attr.attr,
384 &port_pma_attr_port_rcv_data.attr.attr,
385 &port_pma_attr_port_xmit_packets.attr.attr,
386 &port_pma_attr_port_rcv_packets.attr.attr,
387 NULL
388};
389
390static struct attribute_group pma_group = {
391 .name = "counters",
392 .attrs = pma_attrs
393};
394
395static void ib_port_release(struct kobject *kobj)
396{
397 struct ib_port *p = container_of(kobj, struct ib_port, kobj);
398 struct attribute *a;
399 int i;
400
d48593bf 401 for (i = 0; (a = p->gid_group.attrs[i]); ++i)
1da177e4 402 kfree(a);
1da177e4 403
d48593bf
DT		 404 kfree(p->gid_group.attrs);
405
406 for (i = 0; (a = p->pkey_group.attrs[i]); ++i)
1da177e4 407 kfree(a);
1da177e4 408
d48593bf
DT		 409 kfree(p->pkey_group.attrs);
410
1da177e4
LT		 411 kfree(p);
412}
413
414static struct kobj_type port_type = {
415 .release = ib_port_release,
416 .sysfs_ops = &port_sysfs_ops,
417 .default_attrs = port_default_attrs
418};
419
f4e91eb4 420static void ib_device_release(struct device *device)
1da177e4 421{
f4e91eb4 422 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4
LT		 423
424 kfree(dev);
425}
426
f4e91eb4 427static int ib_device_uevent(struct device *device,
7eff2e7a 428 struct kobj_uevent_env *env)
1da177e4 429{
f4e91eb4 430 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4 431
7eff2e7a 432 if (add_uevent_var(env, "NAME=%s", dev->name))
1da177e4
LT		 433 return -ENOMEM;
434
435 /*
cf311cd4 436 * It would be nice to pass the node GUID with the event...
1da177e4
LT		 437 */
438
1da177e4
LT		 439 return 0;
440}
441
d48593bf
DT		 442static struct attribute **
443alloc_group_attrs(ssize_t (*show)(struct ib_port *,
444 struct port_attribute *, char *buf),
445 int len)
1da177e4 446{
d48593bf
DT		 447 struct attribute **tab_attr;
448 struct port_table_attribute *element;
1da177e4 449 int i;
1da177e4 450
d48593bf
DT		 451 tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL);
452 if (!tab_attr)
453 return NULL;
1da177e4 454
d48593bf 455 for (i = 0; i < len; i++) {
82ca76b6 456 element = kzalloc(sizeof(struct port_table_attribute),
d48593bf
DT		 457 GFP_KERNEL);
458 if (!element)
1da177e4 459 goto err;
1da177e4 460
d48593bf 461 if (snprintf(element->name, sizeof(element->name),
048975ac
RD		 462 "%d", i) >= sizeof(element->name)) {
463 kfree(element);
1da177e4 464 goto err;
048975ac 465 }
1da177e4 466
d48593bf
DT		 467 element->attr.attr.name = element->name;
468 element->attr.attr.mode = S_IRUGO;
d48593bf
DT		 469 element->attr.show = show;
470 element->index = i;
1da177e4 471
d48593bf 472 tab_attr[i] = &element->attr.attr;
1da177e4
LT		 473 }
474
d48593bf 475 return tab_attr;
1da177e4 476
d48593bf
DT		 477err:
478 while (--i >= 0)
479 kfree(tab_attr[i]);
480 kfree(tab_attr);
481 return NULL;
1da177e4
LT		 482}
483
484static int add_port(struct ib_device *device, int port_num)
485{
486 struct ib_port *p;
487 struct ib_port_attr attr;
488 int i;
489 int ret;
490
491 ret = ib_query_port(device, port_num, &attr);
492 if (ret)
493 return ret;
494
de6eb66b 495 p = kzalloc(sizeof *p, GFP_KERNEL);
1da177e4
LT		 496 if (!p)
497 return -ENOMEM;
1da177e4
LT		 498
499 p->ibdev = device;
500 p->port_num = port_num;
1da177e4 501
35be0681
GKH		 502 ret = kobject_init_and_add(&p->kobj, &port_type,
503 kobject_get(device->ports_parent),
504 "%d", port_num);
1da177e4
LT		 505 if (ret)
506 goto err_put;
507
508 ret = sysfs_create_group(&p->kobj, &pma_group);
509 if (ret)
510 goto err_put;
511
1da177e4 512 p->gid_group.name = "gids";
d48593bf
DT		 513 p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len);
514 if (!p->gid_group.attrs)
515 goto err_remove_pma;
1da177e4
LT		 516
517 ret = sysfs_create_group(&p->kobj, &p->gid_group);
518 if (ret)
519 goto err_free_gid;
520
1da177e4 521 p->pkey_group.name = "pkeys";
d48593bf
DT		 522 p->pkey_group.attrs = alloc_group_attrs(show_port_pkey,
523 attr.pkey_tbl_len);
524 if (!p->pkey_group.attrs)
525 goto err_remove_gid;
1da177e4
LT		 526
527 ret = sysfs_create_group(&p->kobj, &p->pkey_group);
528 if (ret)
529 goto err_free_pkey;
530
531 list_add_tail(&p->kobj.entry, &device->port_list);
532
35be0681 533 kobject_uevent(&p->kobj, KOBJ_ADD);
1da177e4
LT		 534 return 0;
535
536err_free_pkey:
d48593bf
DT		 537 for (i = 0; i < attr.pkey_tbl_len; ++i)
538 kfree(p->pkey_group.attrs[i]);
1da177e4 539
d48593bf 540 kfree(p->pkey_group.attrs);
1da177e4
LT		 541
542err_remove_gid:
543 sysfs_remove_group(&p->kobj, &p->gid_group);
544
545err_free_gid:
d48593bf
DT		 546 for (i = 0; i < attr.gid_tbl_len; ++i)
547 kfree(p->gid_group.attrs[i]);
1da177e4 548
d48593bf 549 kfree(p->gid_group.attrs);
1da177e4
LT		 550
551err_remove_pma:
552 sysfs_remove_group(&p->kobj, &pma_group);
553
554err_put:
35be0681 555 kobject_put(device->ports_parent);
1da177e4
LT		 556 kfree(p);
557 return ret;
558}
559
f4e91eb4
TJ		 560static ssize_t show_node_type(struct device *device,
561 struct device_attribute *attr, char *buf)
1da177e4 562{
f4e91eb4 563 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4 564
ba8e9310
RD		 565 if (!ibdev_is_alive(dev))
566 return -ENODEV;
567
1da177e4 568 switch (dev->node_type) {
07ebafba
TT		 569 case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type);
570 case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type);
571 case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type);
572 case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type);
573 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type);
1da177e4
LT		 574 }
575}
576
f4e91eb4
TJ		 577static ssize_t show_sys_image_guid(struct device *device,
578 struct device_attribute *dev_attr, char *buf)
1da177e4 579{
f4e91eb4 580 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4
LT		 581 struct ib_device_attr attr;
582 ssize_t ret;
583
ba8e9310
RD		 584 if (!ibdev_is_alive(dev))
585 return -ENODEV;
586
1da177e4
LT		 587 ret = ib_query_device(dev, &attr);
588 if (ret)
589 return ret;
590
591 return sprintf(buf, "%04x:%04x:%04x:%04x\n",
97f52eb4
SH		 592 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]),
593 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]),
594 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]),
595 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3]));
1da177e4
LT		 596}
597
f4e91eb4
TJ		 598static ssize_t show_node_guid(struct device *device,
599 struct device_attribute *attr, char *buf)
1da177e4 600{
f4e91eb4 601 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4 602
ba8e9310
RD		 603 if (!ibdev_is_alive(dev))
604 return -ENODEV;
605
1da177e4 606 return sprintf(buf, "%04x:%04x:%04x:%04x\n",
cf311cd4
SH		 607 be16_to_cpu(((__be16 *) &dev->node_guid)[0]),
608 be16_to_cpu(((__be16 *) &dev->node_guid)[1]),
609 be16_to_cpu(((__be16 *) &dev->node_guid)[2]),
610 be16_to_cpu(((__be16 *) &dev->node_guid)[3]));
1da177e4
LT		 611}
612
f4e91eb4
TJ		 613static ssize_t show_node_desc(struct device *device,
614 struct device_attribute *attr, char *buf)
c5bcbbb9 615{
f4e91eb4 616 struct ib_device *dev = container_of(device, struct ib_device, dev);
c5bcbbb9
RD		 617
618 return sprintf(buf, "%.64s\n", dev->node_desc);
619}
620
f4e91eb4
TJ		 621static ssize_t set_node_desc(struct device *device,
622 struct device_attribute *attr,
623 const char *buf, size_t count)
c5bcbbb9 624{
f4e91eb4 625 struct ib_device *dev = container_of(device, struct ib_device, dev);
c5bcbbb9
RD		 626 struct ib_device_modify desc = {};
627 int ret;
628
629 if (!dev->modify_device)
630 return -EIO;
631
632 memcpy(desc.node_desc, buf, min_t(int, count, 64));
633 ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc);
634 if (ret)
635 return ret;
636
637 return count;
638}
639
f4e91eb4
TJ		 640static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
641static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
642static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
643static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc);
644
645static struct device_attribute *ib_class_attributes[] = {
646 &dev_attr_node_type,
647 &dev_attr_sys_image_guid,
648 &dev_attr_node_guid,
649 &dev_attr_node_desc
1da177e4
LT		 650};
651
652static struct class ib_class = {
653 .name = "infiniband",
f4e91eb4
TJ		 654 .dev_release = ib_device_release,
655 .dev_uevent = ib_device_uevent,
1da177e4
LT		 656};
657
7f624d02
SW		 658/* Show a given an attribute in the statistics group */
659static ssize_t show_protocol_stat(const struct device *device,
660 struct device_attribute *attr, char *buf,
661 unsigned offset)
662{
663 struct ib_device *dev = container_of(device, struct ib_device, dev);
664 union rdma_protocol_stats stats;
665 ssize_t ret;
666
667 ret = dev->get_protocol_stats(dev, &stats);
668 if (ret)
669 return ret;
670
671 return sprintf(buf, "%llu\n",
672 (unsigned long long) ((u64 *) &stats)[offset]);
673}
674
675/* generate a read-only iwarp statistics attribute */
676#define IW_STATS_ENTRY(name) \
677static ssize_t show_##name(struct device *device, \
678 struct device_attribute *attr, char *buf) \
679{ \
680 return show_protocol_stat(device, attr, buf, \
681 offsetof(struct iw_protocol_stats, name) / \
682 sizeof (u64)); \
683} \
684static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
685
686IW_STATS_ENTRY(ipInReceives);
687IW_STATS_ENTRY(ipInHdrErrors);
688IW_STATS_ENTRY(ipInTooBigErrors);
689IW_STATS_ENTRY(ipInNoRoutes);
690IW_STATS_ENTRY(ipInAddrErrors);
691IW_STATS_ENTRY(ipInUnknownProtos);
692IW_STATS_ENTRY(ipInTruncatedPkts);
693IW_STATS_ENTRY(ipInDiscards);
694IW_STATS_ENTRY(ipInDelivers);
695IW_STATS_ENTRY(ipOutForwDatagrams);
696IW_STATS_ENTRY(ipOutRequests);
697IW_STATS_ENTRY(ipOutDiscards);
698IW_STATS_ENTRY(ipOutNoRoutes);
699IW_STATS_ENTRY(ipReasmTimeout);
700IW_STATS_ENTRY(ipReasmReqds);
701IW_STATS_ENTRY(ipReasmOKs);
702IW_STATS_ENTRY(ipReasmFails);
703IW_STATS_ENTRY(ipFragOKs);
704IW_STATS_ENTRY(ipFragFails);
705IW_STATS_ENTRY(ipFragCreates);
706IW_STATS_ENTRY(ipInMcastPkts);
707IW_STATS_ENTRY(ipOutMcastPkts);
708IW_STATS_ENTRY(ipInBcastPkts);
709IW_STATS_ENTRY(ipOutBcastPkts);
710IW_STATS_ENTRY(tcpRtoAlgorithm);
711IW_STATS_ENTRY(tcpRtoMin);
712IW_STATS_ENTRY(tcpRtoMax);
713IW_STATS_ENTRY(tcpMaxConn);
714IW_STATS_ENTRY(tcpActiveOpens);
715IW_STATS_ENTRY(tcpPassiveOpens);
716IW_STATS_ENTRY(tcpAttemptFails);
717IW_STATS_ENTRY(tcpEstabResets);
718IW_STATS_ENTRY(tcpCurrEstab);
719IW_STATS_ENTRY(tcpInSegs);
720IW_STATS_ENTRY(tcpOutSegs);
721IW_STATS_ENTRY(tcpRetransSegs);
722IW_STATS_ENTRY(tcpInErrs);
723IW_STATS_ENTRY(tcpOutRsts);
724
725static struct attribute *iw_proto_stats_attrs[] = {
726 &dev_attr_ipInReceives.attr,
727 &dev_attr_ipInHdrErrors.attr,
728 &dev_attr_ipInTooBigErrors.attr,
729 &dev_attr_ipInNoRoutes.attr,
730 &dev_attr_ipInAddrErrors.attr,
731 &dev_attr_ipInUnknownProtos.attr,
732 &dev_attr_ipInTruncatedPkts.attr,
733 &dev_attr_ipInDiscards.attr,
734 &dev_attr_ipInDelivers.attr,
735 &dev_attr_ipOutForwDatagrams.attr,
736 &dev_attr_ipOutRequests.attr,
737 &dev_attr_ipOutDiscards.attr,
738 &dev_attr_ipOutNoRoutes.attr,
739 &dev_attr_ipReasmTimeout.attr,
740 &dev_attr_ipReasmReqds.attr,
741 &dev_attr_ipReasmOKs.attr,
742 &dev_attr_ipReasmFails.attr,
743 &dev_attr_ipFragOKs.attr,
744 &dev_attr_ipFragFails.attr,
745 &dev_attr_ipFragCreates.attr,
746 &dev_attr_ipInMcastPkts.attr,
747 &dev_attr_ipOutMcastPkts.attr,
748 &dev_attr_ipInBcastPkts.attr,
749 &dev_attr_ipOutBcastPkts.attr,
750 &dev_attr_tcpRtoAlgorithm.attr,
751 &dev_attr_tcpRtoMin.attr,
752 &dev_attr_tcpRtoMax.attr,
753 &dev_attr_tcpMaxConn.attr,
754 &dev_attr_tcpActiveOpens.attr,
755 &dev_attr_tcpPassiveOpens.attr,
756 &dev_attr_tcpAttemptFails.attr,
757 &dev_attr_tcpEstabResets.attr,
758 &dev_attr_tcpCurrEstab.attr,
759 &dev_attr_tcpInSegs.attr,
760 &dev_attr_tcpOutSegs.attr,
761 &dev_attr_tcpRetransSegs.attr,
762 &dev_attr_tcpInErrs.attr,
763 &dev_attr_tcpOutRsts.attr,
764 NULL
765};
766
767static struct attribute_group iw_stats_group = {
768 .name = "proto_stats",
769 .attrs = iw_proto_stats_attrs,
770};
771
1da177e4
LT		 772int ib_device_register_sysfs(struct ib_device *device)
773{
f4e91eb4 774 struct device *class_dev = &device->dev;
1da177e4
LT		 775 int ret;
776 int i;
777
778 class_dev->class = &ib_class;
f4e91eb4
TJ		 779 class_dev->driver_data = device;
780 class_dev->parent = device->dma_device;
781 strlcpy(class_dev->bus_id, device->name, BUS_ID_SIZE);
1da177e4
LT		 782
783 INIT_LIST_HEAD(&device->port_list);
784
f4e91eb4 785 ret = device_register(class_dev);
1da177e4
LT		 786 if (ret)
787 goto err;
788
789 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) {
f4e91eb4 790 ret = device_create_file(class_dev, ib_class_attributes[i]);
1da177e4
LT		 791 if (ret)
792 goto err_unregister;
793 }
794
35be0681
GKH		 795 device->ports_parent = kobject_create_and_add("ports",
796 kobject_get(&class_dev->kobj));
c7482b81
LZ		 797 if (!device->ports_parent) {
798 ret = -ENOMEM;
1da177e4 799 goto err_put;
c7482b81 800 }
1da177e4 801
07ebafba 802 if (device->node_type == RDMA_NODE_IB_SWITCH) {
1da177e4
LT		 803 ret = add_port(device, 0);
804 if (ret)
805 goto err_put;
806 } else {
1da177e4
LT		 807 for (i = 1; i <= device->phys_port_cnt; ++i) {
808 ret = add_port(device, i);
809 if (ret)
810 goto err_put;
811 }
812 }
813
7f624d02
SW		 814 if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) {
815 ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group);
816 if (ret)
817 goto err_put;
818 }
819
1da177e4
LT		 820 return 0;
821
822err_put:
823 {
824 struct kobject *p, *t;
825 struct ib_port *port;
826
827 list_for_each_entry_safe(p, t, &device->port_list, entry) {
828 list_del(&p->entry);
829 port = container_of(p, struct ib_port, kobj);
830 sysfs_remove_group(p, &pma_group);
831 sysfs_remove_group(p, &port->pkey_group);
832 sysfs_remove_group(p, &port->gid_group);
c10997f6 833 kobject_put(p);
1da177e4
LT		 834 }
835 }
836
837 kobject_put(&class_dev->kobj);
838
839err_unregister:
f4e91eb4 840 device_unregister(class_dev);
1da177e4
LT		 841
842err:
843 return ret;
844}
845
846void ib_device_unregister_sysfs(struct ib_device *device)
847{
848 struct kobject *p, *t;
849 struct ib_port *port;
850
851 list_for_each_entry_safe(p, t, &device->port_list, entry) {
852 list_del(&p->entry);
853 port = container_of(p, struct ib_port, kobj);
854 sysfs_remove_group(p, &pma_group);
855 sysfs_remove_group(p, &port->pkey_group);
856 sysfs_remove_group(p, &port->gid_group);
c10997f6 857 kobject_put(p);
1da177e4
LT		 858 }
859
c10997f6 860 kobject_put(device->ports_parent);
f4e91eb4 861 device_unregister(&device->dev);
1da177e4
LT		 862}
863
864int ib_sysfs_setup(void)
865{
866 return class_register(&ib_class);
867}
868
869void ib_sysfs_cleanup(void)
870{
871 class_unregister(&ib_class);
872}
Linux kernel - Deliverables
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