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Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
[net-next-2.6.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
69static 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 82static const struct sysfs_ops port_sysfs_ops = {
1da177e4
LT		 83 .show = port_attr_show
84};
85
86static 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
110static 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
123static 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
137static 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
150static 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
163static 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
176static 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
202static 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
225static PORT_ATTR_RO(state);
226static PORT_ATTR_RO(lid);
227static PORT_ATTR_RO(lid_mask_count);
228static PORT_ATTR_RO(sm_lid);
229static PORT_ATTR_RO(sm_sl);
230static PORT_ATTR_RO(cap_mask);
231static PORT_ATTR_RO(rate);
232static PORT_ATTR_RO(phys_state);
233
234static struct attribute *port_default_attrs[] = {
235 &port_attr_state.attr,
236 &port_attr_lid.attr,
237 &port_attr_lid_mask_count.attr,
238 &port_attr_sm_lid.attr,
239 &port_attr_sm_sl.attr,
240 &port_attr_cap_mask.attr,
241 &port_attr_rate.attr,
242 &port_attr_phys_state.attr,
243 NULL
244};
245
246static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr,
247 char *buf)
248{
249 struct port_table_attribute *tab_attr =
250 container_of(attr, struct port_table_attribute, attr);
251 union ib_gid gid;
252 ssize_t ret;
253
254 ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid);
255 if (ret)
256 return ret;
257
5b095d98 258 return sprintf(buf, "%pI6\n", gid.raw);
1da177e4
LT		 259}
260
261static ssize_t show_port_pkey(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 u16 pkey;
267 ssize_t ret;
268
269 ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey);
270 if (ret)
271 return ret;
272
273 return sprintf(buf, "0x%04x\n", pkey);
274}
275
276#define PORT_PMA_ATTR(_name, _counter, _width, _offset) \
277struct port_table_attribute port_pma_attr_##_name = { \
278 .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \
279 .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \
280}
281
282static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr,
283 char *buf)
284{
285 struct port_table_attribute *tab_attr =
286 container_of(attr, struct port_table_attribute, attr);
287 int offset = tab_attr->index & 0xffff;
288 int width = (tab_attr->index >> 16) & 0xff;
289 struct ib_mad *in_mad = NULL;
290 struct ib_mad *out_mad = NULL;
291 ssize_t ret;
292
293 if (!p->ibdev->process_mad)
294 return sprintf(buf, "N/A (no PMA)\n");
295
de6eb66b 296 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
856c52a7 297 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
1da177e4
LT		 298 if (!in_mad || !out_mad) {
299 ret = -ENOMEM;
300 goto out;
301 }
302
1da177e4
LT		 303 in_mad->mad_hdr.base_version = 1;
304 in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT;
305 in_mad->mad_hdr.class_version = 1;
306 in_mad->mad_hdr.method = IB_MGMT_METHOD_GET;
307 in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */
308
309 in_mad->data[41] = p->port_num; /* PortSelect field */
310
311 if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY,
312 p->port_num, NULL, NULL, in_mad, out_mad) &
313 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) !=
314 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) {
315 ret = -EINVAL;
316 goto out;
317 }
318
319 switch (width) {
320 case 4:
321 ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >>
d8b9f23b 322 (4 - (offset % 8))) & 0xf);
1da177e4
LT		 323 break;
324 case 8:
325 ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]);
326 break;
327 case 16:
328 ret = sprintf(buf, "%u\n",
97f52eb4 329 be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8)));
1da177e4
LT		 330 break;
331 case 32:
332 ret = sprintf(buf, "%u\n",
97f52eb4 333 be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8)));
1da177e4
LT		 334 break;
335 default:
336 ret = 0;
337 }
338
339out:
340 kfree(in_mad);
341 kfree(out_mad);
342
343 return ret;
344}
345
346static PORT_PMA_ATTR(symbol_error , 0, 16, 32);
347static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48);
348static PORT_PMA_ATTR(link_downed , 2, 8, 56);
349static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64);
350static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80);
351static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96);
352static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112);
353static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128);
354static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136);
355static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152);
356static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156);
357static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176);
358static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192);
359static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224);
360static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256);
361static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288);
362
363static struct attribute *pma_attrs[] = {
364 &port_pma_attr_symbol_error.attr.attr,
365 &port_pma_attr_link_error_recovery.attr.attr,
366 &port_pma_attr_link_downed.attr.attr,
367 &port_pma_attr_port_rcv_errors.attr.attr,
368 &port_pma_attr_port_rcv_remote_physical_errors.attr.attr,
369 &port_pma_attr_port_rcv_switch_relay_errors.attr.attr,
370 &port_pma_attr_port_xmit_discards.attr.attr,
371 &port_pma_attr_port_xmit_constraint_errors.attr.attr,
372 &port_pma_attr_port_rcv_constraint_errors.attr.attr,
373 &port_pma_attr_local_link_integrity_errors.attr.attr,
374 &port_pma_attr_excessive_buffer_overrun_errors.attr.attr,
375 &port_pma_attr_VL15_dropped.attr.attr,
376 &port_pma_attr_port_xmit_data.attr.attr,
377 &port_pma_attr_port_rcv_data.attr.attr,
378 &port_pma_attr_port_xmit_packets.attr.attr,
379 &port_pma_attr_port_rcv_packets.attr.attr,
380 NULL
381};
382
383static struct attribute_group pma_group = {
384 .name = "counters",
385 .attrs = pma_attrs
386};
387
388static void ib_port_release(struct kobject *kobj)
389{
390 struct ib_port *p = container_of(kobj, struct ib_port, kobj);
391 struct attribute *a;
392 int i;
393
d48593bf 394 for (i = 0; (a = p->gid_group.attrs[i]); ++i)
1da177e4 395 kfree(a);
1da177e4 396
d48593bf
DT		 397 kfree(p->gid_group.attrs);
398
399 for (i = 0; (a = p->pkey_group.attrs[i]); ++i)
1da177e4 400 kfree(a);
1da177e4 401
d48593bf
DT		 402 kfree(p->pkey_group.attrs);
403
1da177e4
LT		 404 kfree(p);
405}
406
407static struct kobj_type port_type = {
408 .release = ib_port_release,
409 .sysfs_ops = &port_sysfs_ops,
410 .default_attrs = port_default_attrs
411};
412
f4e91eb4 413static void ib_device_release(struct device *device)
1da177e4 414{
f4e91eb4 415 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4
LT		 416
417 kfree(dev);
418}
419
f4e91eb4 420static int ib_device_uevent(struct device *device,
7eff2e7a 421 struct kobj_uevent_env *env)
1da177e4 422{
f4e91eb4 423 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4 424
7eff2e7a 425 if (add_uevent_var(env, "NAME=%s", dev->name))
1da177e4
LT		 426 return -ENOMEM;
427
428 /*
cf311cd4 429 * It would be nice to pass the node GUID with the event...
1da177e4
LT		 430 */
431
1da177e4
LT		 432 return 0;
433}
434
d48593bf
DT		 435static struct attribute **
436alloc_group_attrs(ssize_t (*show)(struct ib_port *,
437 struct port_attribute *, char *buf),
438 int len)
1da177e4 439{
d48593bf
DT		 440 struct attribute **tab_attr;
441 struct port_table_attribute *element;
1da177e4 442 int i;
1da177e4 443
d48593bf
DT		 444 tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL);
445 if (!tab_attr)
446 return NULL;
1da177e4 447
d48593bf 448 for (i = 0; i < len; i++) {
82ca76b6 449 element = kzalloc(sizeof(struct port_table_attribute),
d48593bf
DT		 450 GFP_KERNEL);
451 if (!element)
1da177e4 452 goto err;
1da177e4 453
d48593bf 454 if (snprintf(element->name, sizeof(element->name),
048975ac
RD		 455 "%d", i) >= sizeof(element->name)) {
456 kfree(element);
1da177e4 457 goto err;
048975ac 458 }
1da177e4 459
d48593bf
DT		 460 element->attr.attr.name = element->name;
461 element->attr.attr.mode = S_IRUGO;
d48593bf
DT		 462 element->attr.show = show;
463 element->index = i;
21e3bde9 464 sysfs_attr_init(&element->attr.attr);
1da177e4 465
d48593bf 466 tab_attr[i] = &element->attr.attr;
1da177e4
LT		 467 }
468
d48593bf 469 return tab_attr;
1da177e4 470
d48593bf
DT		 471err:
472 while (--i >= 0)
473 kfree(tab_attr[i]);
474 kfree(tab_attr);
475 return NULL;
1da177e4
LT		 476}
477
9a6edb60
RC		 478static int add_port(struct ib_device *device, int port_num,
479 int (*port_callback)(struct ib_device *,
480 u8, struct kobject *))
1da177e4
LT		 481{
482 struct ib_port *p;
483 struct ib_port_attr attr;
484 int i;
485 int ret;
486
487 ret = ib_query_port(device, port_num, &attr);
488 if (ret)
489 return ret;
490
de6eb66b 491 p = kzalloc(sizeof *p, GFP_KERNEL);
1da177e4
LT		 492 if (!p)
493 return -ENOMEM;
1da177e4
LT		 494
495 p->ibdev = device;
496 p->port_num = port_num;
1da177e4 497
35be0681
GKH		 498 ret = kobject_init_and_add(&p->kobj, &port_type,
499 kobject_get(device->ports_parent),
500 "%d", port_num);
1da177e4
LT		 501 if (ret)
502 goto err_put;
503
504 ret = sysfs_create_group(&p->kobj, &pma_group);
505 if (ret)
506 goto err_put;
507
1da177e4 508 p->gid_group.name = "gids";
d48593bf
DT		 509 p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len);
510 if (!p->gid_group.attrs)
511 goto err_remove_pma;
1da177e4
LT		 512
513 ret = sysfs_create_group(&p->kobj, &p->gid_group);
514 if (ret)
515 goto err_free_gid;
516
1da177e4 517 p->pkey_group.name = "pkeys";
d48593bf
DT		 518 p->pkey_group.attrs = alloc_group_attrs(show_port_pkey,
519 attr.pkey_tbl_len);
520 if (!p->pkey_group.attrs)
521 goto err_remove_gid;
1da177e4
LT		 522
523 ret = sysfs_create_group(&p->kobj, &p->pkey_group);
524 if (ret)
525 goto err_free_pkey;
526
9a6edb60
RC		 527 if (port_callback) {
528 ret = port_callback(device, port_num, &p->kobj);
529 if (ret)
530 goto err_remove_pkey;
531 }
532
1da177e4
LT		 533 list_add_tail(&p->kobj.entry, &device->port_list);
534
35be0681 535 kobject_uevent(&p->kobj, KOBJ_ADD);
1da177e4
LT		 536 return 0;
537
9a6edb60
RC		 538err_remove_pkey:
539 sysfs_remove_group(&p->kobj, &p->pkey_group);
540
1da177e4 541err_free_pkey:
d48593bf
DT		 542 for (i = 0; i < attr.pkey_tbl_len; ++i)
543 kfree(p->pkey_group.attrs[i]);
1da177e4 544
d48593bf 545 kfree(p->pkey_group.attrs);
1da177e4
LT		 546
547err_remove_gid:
548 sysfs_remove_group(&p->kobj, &p->gid_group);
549
550err_free_gid:
d48593bf
DT		 551 for (i = 0; i < attr.gid_tbl_len; ++i)
552 kfree(p->gid_group.attrs[i]);
1da177e4 553
d48593bf 554 kfree(p->gid_group.attrs);
1da177e4
LT		 555
556err_remove_pma:
557 sysfs_remove_group(&p->kobj, &pma_group);
558
559err_put:
35be0681 560 kobject_put(device->ports_parent);
1da177e4
LT		 561 kfree(p);
562 return ret;
563}
564
f4e91eb4
TJ		 565static ssize_t show_node_type(struct device *device,
566 struct device_attribute *attr, char *buf)
1da177e4 567{
f4e91eb4 568 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4
LT		 569
570 switch (dev->node_type) {
07ebafba
TT		 571 case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type);
572 case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type);
573 case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type);
574 case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type);
575 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type);
1da177e4
LT		 576 }
577}
578
f4e91eb4
TJ		 579static ssize_t show_sys_image_guid(struct device *device,
580 struct device_attribute *dev_attr, char *buf)
1da177e4 581{
f4e91eb4 582 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4
LT		 583 struct ib_device_attr attr;
584 ssize_t ret;
585
586 ret = ib_query_device(dev, &attr);
587 if (ret)
588 return ret;
589
590 return sprintf(buf, "%04x:%04x:%04x:%04x\n",
97f52eb4
SH		 591 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]),
592 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]),
593 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]),
594 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3]));
1da177e4
LT		 595}
596
f4e91eb4
TJ		 597static ssize_t show_node_guid(struct device *device,
598 struct device_attribute *attr, char *buf)
1da177e4 599{
f4e91eb4 600 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4 601
1da177e4 602 return sprintf(buf, "%04x:%04x:%04x:%04x\n",
cf311cd4
SH		 603 be16_to_cpu(((__be16 *) &dev->node_guid)[0]),
604 be16_to_cpu(((__be16 *) &dev->node_guid)[1]),
605 be16_to_cpu(((__be16 *) &dev->node_guid)[2]),
606 be16_to_cpu(((__be16 *) &dev->node_guid)[3]));
1da177e4
LT		 607}
608
f4e91eb4
TJ		 609static ssize_t show_node_desc(struct device *device,
610 struct device_attribute *attr, char *buf)
c5bcbbb9 611{
f4e91eb4 612 struct ib_device *dev = container_of(device, struct ib_device, dev);
c5bcbbb9
RD		 613
614 return sprintf(buf, "%.64s\n", dev->node_desc);
615}
616
f4e91eb4
TJ		 617static ssize_t set_node_desc(struct device *device,
618 struct device_attribute *attr,
619 const char *buf, size_t count)
c5bcbbb9 620{
f4e91eb4 621 struct ib_device *dev = container_of(device, struct ib_device, dev);
c5bcbbb9
RD		 622 struct ib_device_modify desc = {};
623 int ret;
624
625 if (!dev->modify_device)
626 return -EIO;
627
628 memcpy(desc.node_desc, buf, min_t(int, count, 64));
629 ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc);
630 if (ret)
631 return ret;
632
633 return count;
634}
635
f4e91eb4
TJ		 636static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
637static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
638static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
639static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc);
640
641static struct device_attribute *ib_class_attributes[] = {
642 &dev_attr_node_type,
643 &dev_attr_sys_image_guid,
644 &dev_attr_node_guid,
645 &dev_attr_node_desc
1da177e4
LT		 646};
647
648static struct class ib_class = {
649 .name = "infiniband",
f4e91eb4
TJ		 650 .dev_release = ib_device_release,
651 .dev_uevent = ib_device_uevent,
1da177e4
LT		 652};
653
7f624d02
SW		 654/* Show a given an attribute in the statistics group */
655static ssize_t show_protocol_stat(const struct device *device,
656 struct device_attribute *attr, char *buf,
657 unsigned offset)
658{
659 struct ib_device *dev = container_of(device, struct ib_device, dev);
660 union rdma_protocol_stats stats;
661 ssize_t ret;
662
663 ret = dev->get_protocol_stats(dev, &stats);
664 if (ret)
665 return ret;
666
667 return sprintf(buf, "%llu\n",
668 (unsigned long long) ((u64 *) &stats)[offset]);
669}
670
671/* generate a read-only iwarp statistics attribute */
672#define IW_STATS_ENTRY(name) \
673static ssize_t show_##name(struct device *device, \
674 struct device_attribute *attr, char *buf) \
675{ \
676 return show_protocol_stat(device, attr, buf, \
677 offsetof(struct iw_protocol_stats, name) / \
678 sizeof (u64)); \
679} \
680static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
681
682IW_STATS_ENTRY(ipInReceives);
683IW_STATS_ENTRY(ipInHdrErrors);
684IW_STATS_ENTRY(ipInTooBigErrors);
685IW_STATS_ENTRY(ipInNoRoutes);
686IW_STATS_ENTRY(ipInAddrErrors);
687IW_STATS_ENTRY(ipInUnknownProtos);
688IW_STATS_ENTRY(ipInTruncatedPkts);
689IW_STATS_ENTRY(ipInDiscards);
690IW_STATS_ENTRY(ipInDelivers);
691IW_STATS_ENTRY(ipOutForwDatagrams);
692IW_STATS_ENTRY(ipOutRequests);
693IW_STATS_ENTRY(ipOutDiscards);
694IW_STATS_ENTRY(ipOutNoRoutes);
695IW_STATS_ENTRY(ipReasmTimeout);
696IW_STATS_ENTRY(ipReasmReqds);
697IW_STATS_ENTRY(ipReasmOKs);
698IW_STATS_ENTRY(ipReasmFails);
699IW_STATS_ENTRY(ipFragOKs);
700IW_STATS_ENTRY(ipFragFails);
701IW_STATS_ENTRY(ipFragCreates);
702IW_STATS_ENTRY(ipInMcastPkts);
703IW_STATS_ENTRY(ipOutMcastPkts);
704IW_STATS_ENTRY(ipInBcastPkts);
705IW_STATS_ENTRY(ipOutBcastPkts);
706IW_STATS_ENTRY(tcpRtoAlgorithm);
707IW_STATS_ENTRY(tcpRtoMin);
708IW_STATS_ENTRY(tcpRtoMax);
709IW_STATS_ENTRY(tcpMaxConn);
710IW_STATS_ENTRY(tcpActiveOpens);
711IW_STATS_ENTRY(tcpPassiveOpens);
712IW_STATS_ENTRY(tcpAttemptFails);
713IW_STATS_ENTRY(tcpEstabResets);
714IW_STATS_ENTRY(tcpCurrEstab);
715IW_STATS_ENTRY(tcpInSegs);
716IW_STATS_ENTRY(tcpOutSegs);
717IW_STATS_ENTRY(tcpRetransSegs);
718IW_STATS_ENTRY(tcpInErrs);
719IW_STATS_ENTRY(tcpOutRsts);
720
721static struct attribute *iw_proto_stats_attrs[] = {
722 &dev_attr_ipInReceives.attr,
723 &dev_attr_ipInHdrErrors.attr,
724 &dev_attr_ipInTooBigErrors.attr,
725 &dev_attr_ipInNoRoutes.attr,
726 &dev_attr_ipInAddrErrors.attr,
727 &dev_attr_ipInUnknownProtos.attr,
728 &dev_attr_ipInTruncatedPkts.attr,
729 &dev_attr_ipInDiscards.attr,
730 &dev_attr_ipInDelivers.attr,
731 &dev_attr_ipOutForwDatagrams.attr,
732 &dev_attr_ipOutRequests.attr,
733 &dev_attr_ipOutDiscards.attr,
734 &dev_attr_ipOutNoRoutes.attr,
735 &dev_attr_ipReasmTimeout.attr,
736 &dev_attr_ipReasmReqds.attr,
737 &dev_attr_ipReasmOKs.attr,
738 &dev_attr_ipReasmFails.attr,
739 &dev_attr_ipFragOKs.attr,
740 &dev_attr_ipFragFails.attr,
741 &dev_attr_ipFragCreates.attr,
742 &dev_attr_ipInMcastPkts.attr,
743 &dev_attr_ipOutMcastPkts.attr,
744 &dev_attr_ipInBcastPkts.attr,
745 &dev_attr_ipOutBcastPkts.attr,
746 &dev_attr_tcpRtoAlgorithm.attr,
747 &dev_attr_tcpRtoMin.attr,
748 &dev_attr_tcpRtoMax.attr,
749 &dev_attr_tcpMaxConn.attr,
750 &dev_attr_tcpActiveOpens.attr,
751 &dev_attr_tcpPassiveOpens.attr,
752 &dev_attr_tcpAttemptFails.attr,
753 &dev_attr_tcpEstabResets.attr,
754 &dev_attr_tcpCurrEstab.attr,
755 &dev_attr_tcpInSegs.attr,
756 &dev_attr_tcpOutSegs.attr,
757 &dev_attr_tcpRetransSegs.attr,
758 &dev_attr_tcpInErrs.attr,
759 &dev_attr_tcpOutRsts.attr,
760 NULL
761};
762
763static struct attribute_group iw_stats_group = {
764 .name = "proto_stats",
765 .attrs = iw_proto_stats_attrs,
766};
767
9a6edb60
RC		 768int ib_device_register_sysfs(struct ib_device *device,
769 int (*port_callback)(struct ib_device *,
770 u8, struct kobject *))
1da177e4 771{
f4e91eb4 772 struct device *class_dev = &device->dev;
1da177e4
LT		 773 int ret;
774 int i;
775
776 class_dev->class = &ib_class;
f4e91eb4 777 class_dev->parent = device->dma_device;
d927e38c 778 dev_set_name(class_dev, device->name);
3f7c58a0 779 dev_set_drvdata(class_dev, device);
1da177e4
LT		 780
781 INIT_LIST_HEAD(&device->port_list);
782
f4e91eb4 783 ret = device_register(class_dev);
1da177e4
LT		 784 if (ret)
785 goto err;
786
787 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) {
f4e91eb4 788 ret = device_create_file(class_dev, ib_class_attributes[i]);
1da177e4
LT		 789 if (ret)
790 goto err_unregister;
791 }
792
35be0681
GKH		 793 device->ports_parent = kobject_create_and_add("ports",
794 kobject_get(&class_dev->kobj));
c7482b81
LZ		 795 if (!device->ports_parent) {
796 ret = -ENOMEM;
1da177e4 797 goto err_put;
c7482b81 798 }
1da177e4 799
07ebafba 800 if (device->node_type == RDMA_NODE_IB_SWITCH) {
9a6edb60 801 ret = add_port(device, 0, port_callback);
1da177e4
LT		 802 if (ret)
803 goto err_put;
804 } else {
1da177e4 805 for (i = 1; i <= device->phys_port_cnt; ++i) {
9a6edb60 806 ret = add_port(device, i, port_callback);
1da177e4
LT		 807 if (ret)
808 goto err_put;
809 }
810 }
811
7f624d02
SW		 812 if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) {
813 ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group);
814 if (ret)
815 goto err_put;
816 }
817
1da177e4
LT		 818 return 0;
819
820err_put:
821 {
822 struct kobject *p, *t;
823 struct ib_port *port;
824
825 list_for_each_entry_safe(p, t, &device->port_list, entry) {
826 list_del(&p->entry);
827 port = container_of(p, struct ib_port, kobj);
828 sysfs_remove_group(p, &pma_group);
829 sysfs_remove_group(p, &port->pkey_group);
830 sysfs_remove_group(p, &port->gid_group);
c10997f6 831 kobject_put(p);
1da177e4
LT		 832 }
833 }
834
835 kobject_put(&class_dev->kobj);
836
837err_unregister:
f4e91eb4 838 device_unregister(class_dev);
1da177e4
LT		 839
840err:
841 return ret;
842}
843
844void ib_device_unregister_sysfs(struct ib_device *device)
845{
846 struct kobject *p, *t;
847 struct ib_port *port;
848
9206dff1
RD		 849 /* Hold kobject until ib_dealloc_device() */
850 kobject_get(&device->dev.kobj);
851
1da177e4
LT		 852 list_for_each_entry_safe(p, t, &device->port_list, entry) {
853 list_del(&p->entry);
854 port = container_of(p, struct ib_port, kobj);
855 sysfs_remove_group(p, &pma_group);
856 sysfs_remove_group(p, &port->pkey_group);
857 sysfs_remove_group(p, &port->gid_group);
c10997f6 858 kobject_put(p);
1da177e4
LT		 859 }
860
c10997f6 861 kobject_put(device->ports_parent);
f4e91eb4 862 device_unregister(&device->dev);
1da177e4
LT		 863}
864
865int ib_sysfs_setup(void)
866{
867 return class_register(&ib_class);
868}
869
870void ib_sysfs_cleanup(void)
871{
872 class_unregister(&ib_class);
873}
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