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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
[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
55ee3ab2 292 ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid, NULL);
1da177e4
LT		 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;
4cd7c947
IW		 329 size_t mad_size = sizeof(*out_mad);
330 u16 out_mad_pkey_index = 0;
1da177e4
LT		 331 ssize_t ret;
332
333 if (!p->ibdev->process_mad)
334 return sprintf(buf, "N/A (no PMA)\n");
335
de6eb66b 336 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
856c52a7 337 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
1da177e4
LT		 338 if (!in_mad || !out_mad) {
339 ret = -ENOMEM;
340 goto out;
341 }
342
1da177e4
LT		 343 in_mad->mad_hdr.base_version = 1;
344 in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT;
345 in_mad->mad_hdr.class_version = 1;
346 in_mad->mad_hdr.method = IB_MGMT_METHOD_GET;
347 in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */
348
349 in_mad->data[41] = p->port_num; /* PortSelect field */
350
351 if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY,
4cd7c947
IW		 352 p->port_num, NULL, NULL,
353 (const struct ib_mad_hdr *)in_mad, mad_size,
354 (struct ib_mad_hdr *)out_mad, &mad_size,
355 &out_mad_pkey_index) &
1da177e4
LT		 356 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) !=
357 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) {
358 ret = -EINVAL;
359 goto out;
360 }
361
362 switch (width) {
363 case 4:
364 ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >>
d8b9f23b 365 (4 - (offset % 8))) & 0xf);
1da177e4
LT		 366 break;
367 case 8:
368 ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]);
369 break;
370 case 16:
371 ret = sprintf(buf, "%u\n",
97f52eb4 372 be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8)));
1da177e4
LT		 373 break;
374 case 32:
375 ret = sprintf(buf, "%u\n",
97f52eb4 376 be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8)));
1da177e4
LT		 377 break;
378 default:
379 ret = 0;
380 }
381
382out:
383 kfree(in_mad);
384 kfree(out_mad);
385
386 return ret;
387}
388
389static PORT_PMA_ATTR(symbol_error , 0, 16, 32);
390static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48);
391static PORT_PMA_ATTR(link_downed , 2, 8, 56);
392static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64);
393static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80);
394static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96);
395static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112);
396static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128);
397static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136);
398static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152);
399static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156);
400static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176);
401static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192);
402static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224);
403static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256);
404static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288);
405
406static struct attribute *pma_attrs[] = {
407 &port_pma_attr_symbol_error.attr.attr,
408 &port_pma_attr_link_error_recovery.attr.attr,
409 &port_pma_attr_link_downed.attr.attr,
410 &port_pma_attr_port_rcv_errors.attr.attr,
411 &port_pma_attr_port_rcv_remote_physical_errors.attr.attr,
412 &port_pma_attr_port_rcv_switch_relay_errors.attr.attr,
413 &port_pma_attr_port_xmit_discards.attr.attr,
414 &port_pma_attr_port_xmit_constraint_errors.attr.attr,
415 &port_pma_attr_port_rcv_constraint_errors.attr.attr,
416 &port_pma_attr_local_link_integrity_errors.attr.attr,
417 &port_pma_attr_excessive_buffer_overrun_errors.attr.attr,
418 &port_pma_attr_VL15_dropped.attr.attr,
419 &port_pma_attr_port_xmit_data.attr.attr,
420 &port_pma_attr_port_rcv_data.attr.attr,
421 &port_pma_attr_port_xmit_packets.attr.attr,
422 &port_pma_attr_port_rcv_packets.attr.attr,
423 NULL
424};
425
426static struct attribute_group pma_group = {
427 .name = "counters",
428 .attrs = pma_attrs
429};
430
431static void ib_port_release(struct kobject *kobj)
432{
433 struct ib_port *p = container_of(kobj, struct ib_port, kobj);
434 struct attribute *a;
435 int i;
436
cad6d02a
HE		 437 if (p->gid_group.attrs) {
438 for (i = 0; (a = p->gid_group.attrs[i]); ++i)
439 kfree(a);
1da177e4 440
cad6d02a
HE		 441 kfree(p->gid_group.attrs);
442 }
d48593bf 443
cad6d02a
HE		 444 if (p->pkey_group.attrs) {
445 for (i = 0; (a = p->pkey_group.attrs[i]); ++i)
446 kfree(a);
1da177e4 447
cad6d02a
HE		 448 kfree(p->pkey_group.attrs);
449 }
d48593bf 450
1da177e4
LT		 451 kfree(p);
452}
453
454static struct kobj_type port_type = {
455 .release = ib_port_release,
456 .sysfs_ops = &port_sysfs_ops,
457 .default_attrs = port_default_attrs
458};
459
d48593bf
DT		 460static struct attribute **
461alloc_group_attrs(ssize_t (*show)(struct ib_port *,
462 struct port_attribute *, char *buf),
463 int len)
1da177e4 464{
d48593bf
DT		 465 struct attribute **tab_attr;
466 struct port_table_attribute *element;
1da177e4 467 int i;
1da177e4 468
d48593bf
DT		 469 tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL);
470 if (!tab_attr)
471 return NULL;
1da177e4 472
d48593bf 473 for (i = 0; i < len; i++) {
82ca76b6 474 element = kzalloc(sizeof(struct port_table_attribute),
d48593bf
DT		 475 GFP_KERNEL);
476 if (!element)
1da177e4 477 goto err;
1da177e4 478
d48593bf 479 if (snprintf(element->name, sizeof(element->name),
048975ac
RD		 480 "%d", i) >= sizeof(element->name)) {
481 kfree(element);
1da177e4 482 goto err;
048975ac 483 }
1da177e4 484
d48593bf
DT		 485 element->attr.attr.name = element->name;
486 element->attr.attr.mode = S_IRUGO;
d48593bf
DT		 487 element->attr.show = show;
488 element->index = i;
21e3bde9 489 sysfs_attr_init(&element->attr.attr);
1da177e4 490
d48593bf 491 tab_attr[i] = &element->attr.attr;
1da177e4
LT		 492 }
493
d48593bf 494 return tab_attr;
1da177e4 495
d48593bf
DT		 496err:
497 while (--i >= 0)
498 kfree(tab_attr[i]);
499 kfree(tab_attr);
500 return NULL;
1da177e4
LT		 501}
502
9a6edb60
RC		 503static int add_port(struct ib_device *device, int port_num,
504 int (*port_callback)(struct ib_device *,
505 u8, struct kobject *))
1da177e4
LT		 506{
507 struct ib_port *p;
508 struct ib_port_attr attr;
509 int i;
510 int ret;
511
512 ret = ib_query_port(device, port_num, &attr);
513 if (ret)
514 return ret;
515
de6eb66b 516 p = kzalloc(sizeof *p, GFP_KERNEL);
1da177e4
LT		 517 if (!p)
518 return -ENOMEM;
1da177e4
LT		 519
520 p->ibdev = device;
521 p->port_num = port_num;
1da177e4 522
35be0681 523 ret = kobject_init_and_add(&p->kobj, &port_type,
373c0ea1 524 device->ports_parent,
35be0681 525 "%d", port_num);
cad6d02a
HE		 526 if (ret) {
527 kfree(p);
528 return ret;
529 }
1da177e4
LT		 530
531 ret = sysfs_create_group(&p->kobj, &pma_group);
532 if (ret)
533 goto err_put;
534
1da177e4 535 p->gid_group.name = "gids";
d48593bf 536 p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len);
80b15043
WY		 537 if (!p->gid_group.attrs) {
538 ret = -ENOMEM;
d48593bf 539 goto err_remove_pma;
80b15043 540 }
1da177e4
LT		 541
542 ret = sysfs_create_group(&p->kobj, &p->gid_group);
543 if (ret)
544 goto err_free_gid;
545
1da177e4 546 p->pkey_group.name = "pkeys";
d48593bf
DT		 547 p->pkey_group.attrs = alloc_group_attrs(show_port_pkey,
548 attr.pkey_tbl_len);
80b15043
WY		 549 if (!p->pkey_group.attrs) {
550 ret = -ENOMEM;
d48593bf 551 goto err_remove_gid;
80b15043 552 }
1da177e4
LT		 553
554 ret = sysfs_create_group(&p->kobj, &p->pkey_group);
555 if (ret)
556 goto err_free_pkey;
557
9a6edb60
RC		 558 if (port_callback) {
559 ret = port_callback(device, port_num, &p->kobj);
560 if (ret)
561 goto err_remove_pkey;
562 }
563
1da177e4
LT		 564 list_add_tail(&p->kobj.entry, &device->port_list);
565
35be0681 566 kobject_uevent(&p->kobj, KOBJ_ADD);
1da177e4
LT		 567 return 0;
568
9a6edb60
RC		 569err_remove_pkey:
570 sysfs_remove_group(&p->kobj, &p->pkey_group);
571
1da177e4 572err_free_pkey:
d48593bf
DT		 573 for (i = 0; i < attr.pkey_tbl_len; ++i)
574 kfree(p->pkey_group.attrs[i]);
1da177e4 575
d48593bf 576 kfree(p->pkey_group.attrs);
cad6d02a 577 p->pkey_group.attrs = NULL;
1da177e4
LT		 578
579err_remove_gid:
580 sysfs_remove_group(&p->kobj, &p->gid_group);
581
582err_free_gid:
d48593bf
DT		 583 for (i = 0; i < attr.gid_tbl_len; ++i)
584 kfree(p->gid_group.attrs[i]);
1da177e4 585
d48593bf 586 kfree(p->gid_group.attrs);
cad6d02a 587 p->gid_group.attrs = NULL;
1da177e4
LT		 588
589err_remove_pma:
590 sysfs_remove_group(&p->kobj, &pma_group);
591
592err_put:
cad6d02a 593 kobject_put(&p->kobj);
1da177e4
LT		 594 return ret;
595}
596
f4e91eb4
TJ		 597static ssize_t show_node_type(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
LT		 601
602 switch (dev->node_type) {
07ebafba
TT		 603 case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type);
604 case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type);
180771a3 605 case RDMA_NODE_USNIC: return sprintf(buf, "%d: usNIC\n", dev->node_type);
5db5765e 606 case RDMA_NODE_USNIC_UDP: return sprintf(buf, "%d: usNIC UDP\n", dev->node_type);
07ebafba
TT		 607 case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type);
608 case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type);
609 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type);
1da177e4
LT		 610 }
611}
612
f4e91eb4
TJ		 613static ssize_t show_sys_image_guid(struct device *device,
614 struct device_attribute *dev_attr, char *buf)
1da177e4 615{
f4e91eb4 616 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4
LT		 617 struct ib_device_attr attr;
618 ssize_t ret;
619
620 ret = ib_query_device(dev, &attr);
621 if (ret)
622 return ret;
623
624 return sprintf(buf, "%04x:%04x:%04x:%04x\n",
97f52eb4
SH		 625 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]),
626 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]),
627 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]),
628 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3]));
1da177e4
LT		 629}
630
f4e91eb4
TJ		 631static ssize_t show_node_guid(struct device *device,
632 struct device_attribute *attr, char *buf)
1da177e4 633{
f4e91eb4 634 struct ib_device *dev = container_of(device, struct ib_device, dev);
1da177e4 635
1da177e4 636 return sprintf(buf, "%04x:%04x:%04x:%04x\n",
cf311cd4
SH		 637 be16_to_cpu(((__be16 *) &dev->node_guid)[0]),
638 be16_to_cpu(((__be16 *) &dev->node_guid)[1]),
639 be16_to_cpu(((__be16 *) &dev->node_guid)[2]),
640 be16_to_cpu(((__be16 *) &dev->node_guid)[3]));
1da177e4
LT		 641}
642
f4e91eb4
TJ		 643static ssize_t show_node_desc(struct device *device,
644 struct device_attribute *attr, char *buf)
c5bcbbb9 645{
f4e91eb4 646 struct ib_device *dev = container_of(device, struct ib_device, dev);
c5bcbbb9
RD		 647
648 return sprintf(buf, "%.64s\n", dev->node_desc);
649}
650
f4e91eb4
TJ		 651static ssize_t set_node_desc(struct device *device,
652 struct device_attribute *attr,
653 const char *buf, size_t count)
c5bcbbb9 654{
f4e91eb4 655 struct ib_device *dev = container_of(device, struct ib_device, dev);
c5bcbbb9
RD		 656 struct ib_device_modify desc = {};
657 int ret;
658
659 if (!dev->modify_device)
660 return -EIO;
661
662 memcpy(desc.node_desc, buf, min_t(int, count, 64));
663 ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc);
664 if (ret)
665 return ret;
666
667 return count;
668}
669
f4e91eb4
TJ		 670static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
671static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
672static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
673static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc);
674
675static struct device_attribute *ib_class_attributes[] = {
676 &dev_attr_node_type,
677 &dev_attr_sys_image_guid,
678 &dev_attr_node_guid,
679 &dev_attr_node_desc
1da177e4
LT		 680};
681
7f624d02
SW		 682/* Show a given an attribute in the statistics group */
683static ssize_t show_protocol_stat(const struct device *device,
684 struct device_attribute *attr, char *buf,
685 unsigned offset)
686{
687 struct ib_device *dev = container_of(device, struct ib_device, dev);
688 union rdma_protocol_stats stats;
689 ssize_t ret;
690
691 ret = dev->get_protocol_stats(dev, &stats);
692 if (ret)
693 return ret;
694
695 return sprintf(buf, "%llu\n",
696 (unsigned long long) ((u64 *) &stats)[offset]);
697}
698
699/* generate a read-only iwarp statistics attribute */
700#define IW_STATS_ENTRY(name) \
701static ssize_t show_##name(struct device *device, \
702 struct device_attribute *attr, char *buf) \
703{ \
704 return show_protocol_stat(device, attr, buf, \
705 offsetof(struct iw_protocol_stats, name) / \
706 sizeof (u64)); \
707} \
708static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
709
710IW_STATS_ENTRY(ipInReceives);
711IW_STATS_ENTRY(ipInHdrErrors);
712IW_STATS_ENTRY(ipInTooBigErrors);
713IW_STATS_ENTRY(ipInNoRoutes);
714IW_STATS_ENTRY(ipInAddrErrors);
715IW_STATS_ENTRY(ipInUnknownProtos);
716IW_STATS_ENTRY(ipInTruncatedPkts);
717IW_STATS_ENTRY(ipInDiscards);
718IW_STATS_ENTRY(ipInDelivers);
719IW_STATS_ENTRY(ipOutForwDatagrams);
720IW_STATS_ENTRY(ipOutRequests);
721IW_STATS_ENTRY(ipOutDiscards);
722IW_STATS_ENTRY(ipOutNoRoutes);
723IW_STATS_ENTRY(ipReasmTimeout);
724IW_STATS_ENTRY(ipReasmReqds);
725IW_STATS_ENTRY(ipReasmOKs);
726IW_STATS_ENTRY(ipReasmFails);
727IW_STATS_ENTRY(ipFragOKs);
728IW_STATS_ENTRY(ipFragFails);
729IW_STATS_ENTRY(ipFragCreates);
730IW_STATS_ENTRY(ipInMcastPkts);
731IW_STATS_ENTRY(ipOutMcastPkts);
732IW_STATS_ENTRY(ipInBcastPkts);
733IW_STATS_ENTRY(ipOutBcastPkts);
734IW_STATS_ENTRY(tcpRtoAlgorithm);
735IW_STATS_ENTRY(tcpRtoMin);
736IW_STATS_ENTRY(tcpRtoMax);
737IW_STATS_ENTRY(tcpMaxConn);
738IW_STATS_ENTRY(tcpActiveOpens);
739IW_STATS_ENTRY(tcpPassiveOpens);
740IW_STATS_ENTRY(tcpAttemptFails);
741IW_STATS_ENTRY(tcpEstabResets);
742IW_STATS_ENTRY(tcpCurrEstab);
743IW_STATS_ENTRY(tcpInSegs);
744IW_STATS_ENTRY(tcpOutSegs);
745IW_STATS_ENTRY(tcpRetransSegs);
746IW_STATS_ENTRY(tcpInErrs);
747IW_STATS_ENTRY(tcpOutRsts);
748
749static struct attribute *iw_proto_stats_attrs[] = {
750 &dev_attr_ipInReceives.attr,
751 &dev_attr_ipInHdrErrors.attr,
752 &dev_attr_ipInTooBigErrors.attr,
753 &dev_attr_ipInNoRoutes.attr,
754 &dev_attr_ipInAddrErrors.attr,
755 &dev_attr_ipInUnknownProtos.attr,
756 &dev_attr_ipInTruncatedPkts.attr,
757 &dev_attr_ipInDiscards.attr,
758 &dev_attr_ipInDelivers.attr,
759 &dev_attr_ipOutForwDatagrams.attr,
760 &dev_attr_ipOutRequests.attr,
761 &dev_attr_ipOutDiscards.attr,
762 &dev_attr_ipOutNoRoutes.attr,
763 &dev_attr_ipReasmTimeout.attr,
764 &dev_attr_ipReasmReqds.attr,
765 &dev_attr_ipReasmOKs.attr,
766 &dev_attr_ipReasmFails.attr,
767 &dev_attr_ipFragOKs.attr,
768 &dev_attr_ipFragFails.attr,
769 &dev_attr_ipFragCreates.attr,
770 &dev_attr_ipInMcastPkts.attr,
771 &dev_attr_ipOutMcastPkts.attr,
772 &dev_attr_ipInBcastPkts.attr,
773 &dev_attr_ipOutBcastPkts.attr,
774 &dev_attr_tcpRtoAlgorithm.attr,
775 &dev_attr_tcpRtoMin.attr,
776 &dev_attr_tcpRtoMax.attr,
777 &dev_attr_tcpMaxConn.attr,
778 &dev_attr_tcpActiveOpens.attr,
779 &dev_attr_tcpPassiveOpens.attr,
780 &dev_attr_tcpAttemptFails.attr,
781 &dev_attr_tcpEstabResets.attr,
782 &dev_attr_tcpCurrEstab.attr,
783 &dev_attr_tcpInSegs.attr,
784 &dev_attr_tcpOutSegs.attr,
785 &dev_attr_tcpRetransSegs.attr,
786 &dev_attr_tcpInErrs.attr,
787 &dev_attr_tcpOutRsts.attr,
788 NULL
789};
790
791static struct attribute_group iw_stats_group = {
792 .name = "proto_stats",
793 .attrs = iw_proto_stats_attrs,
794};
795
584482ac
HE		 796static void free_port_list_attributes(struct ib_device *device)
797{
798 struct kobject *p, *t;
799
800 list_for_each_entry_safe(p, t, &device->port_list, entry) {
801 struct ib_port *port = container_of(p, struct ib_port, kobj);
802 list_del(&p->entry);
803 sysfs_remove_group(p, &pma_group);
804 sysfs_remove_group(p, &port->pkey_group);
805 sysfs_remove_group(p, &port->gid_group);
806 kobject_put(p);
807 }
808
809 kobject_put(device->ports_parent);
810}
811
9a6edb60
RC		 812int ib_device_register_sysfs(struct ib_device *device,
813 int (*port_callback)(struct ib_device *,
814 u8, struct kobject *))
1da177e4 815{
f4e91eb4 816 struct device *class_dev = &device->dev;
1da177e4
LT		 817 int ret;
818 int i;
819
55aeed06
JG		 820 device->dev.parent = device->dma_device;
821 ret = dev_set_name(class_dev, "%s", device->name);
822 if (ret)
823 return ret;
1da177e4 824
55aeed06 825 ret = device_add(class_dev);
1da177e4
LT		 826 if (ret)
827 goto err;
828
829 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) {
f4e91eb4 830 ret = device_create_file(class_dev, ib_class_attributes[i]);
1da177e4
LT		 831 if (ret)
832 goto err_unregister;
833 }
834
35be0681 835 device->ports_parent = kobject_create_and_add("ports",
373c0ea1 836 &class_dev->kobj);
c7482b81
LZ		 837 if (!device->ports_parent) {
838 ret = -ENOMEM;
1da177e4 839 goto err_put;
c7482b81 840 }
1da177e4 841
4139032b 842 if (rdma_cap_ib_switch(device)) {
9a6edb60 843 ret = add_port(device, 0, port_callback);
1da177e4
LT		 844 if (ret)
845 goto err_put;
846 } else {
1da177e4 847 for (i = 1; i <= device->phys_port_cnt; ++i) {
9a6edb60 848 ret = add_port(device, i, port_callback);
1da177e4
LT		 849 if (ret)
850 goto err_put;
851 }
852 }
853
7f624d02
SW		 854 if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) {
855 ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group);
856 if (ret)
857 goto err_put;
858 }
859
1da177e4
LT		 860 return 0;
861
862err_put:
584482ac 863 free_port_list_attributes(device);
1da177e4 864
1da177e4 865err_unregister:
f4e91eb4 866 device_unregister(class_dev);
1da177e4
LT		 867
868err:
869 return ret;
870}
871
872void ib_device_unregister_sysfs(struct ib_device *device)
873{
9206dff1 874 /* Hold kobject until ib_dealloc_device() */
584482ac
HE		 875 struct kobject *kobj_dev = kobject_get(&device->dev.kobj);
876 int i;
9206dff1 877
584482ac
HE		 878 if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats)
879 sysfs_remove_group(kobj_dev, &iw_stats_group);
880
881 free_port_list_attributes(device);
882
883 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i)
884 device_remove_file(&device->dev, ib_class_attributes[i]);
1da177e4 885
f4e91eb4 886 device_unregister(&device->dev);
1da177e4 887}
Linux kernel - Deliverables
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