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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/infiniband/core/sysfs.c
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/infiniband/core/sysfs.c')
-rw-r--r--drivers/infiniband/core/sysfs.c762
1 files changed, 762 insertions, 0 deletions
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
new file mode 100644
index 000000000000..3a413f72ff6d
--- /dev/null
+++ b/drivers/infiniband/core/sysfs.c
@@ -0,0 +1,762 @@
1/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 *
32 * $Id: sysfs.c 1349 2004-12-16 21:09:43Z roland $
33 */
34
35#include "core_priv.h"
36
37#include <ib_mad.h>
38
39struct ib_port {
40 struct kobject kobj;
41 struct ib_device *ibdev;
42 struct attribute_group gid_group;
43 struct attribute **gid_attr;
44 struct attribute_group pkey_group;
45 struct attribute **pkey_attr;
46 u8 port_num;
47};
48
49struct port_attribute {
50 struct attribute attr;
51 ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf);
52 ssize_t (*store)(struct ib_port *, struct port_attribute *,
53 const char *buf, size_t count);
54};
55
56#define PORT_ATTR(_name, _mode, _show, _store) \
57struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store)
58
59#define PORT_ATTR_RO(_name) \
60struct port_attribute port_attr_##_name = __ATTR_RO(_name)
61
62struct port_table_attribute {
63 struct port_attribute attr;
64 int index;
65};
66
67static ssize_t port_attr_show(struct kobject *kobj,
68 struct attribute *attr, char *buf)
69{
70 struct port_attribute *port_attr =
71 container_of(attr, struct port_attribute, attr);
72 struct ib_port *p = container_of(kobj, struct ib_port, kobj);
73
74 if (!port_attr->show)
75 return 0;
76
77 return port_attr->show(p, port_attr, buf);
78}
79
80static struct sysfs_ops port_sysfs_ops = {
81 .show = port_attr_show
82};
83
84static ssize_t state_show(struct ib_port *p, struct port_attribute *unused,
85 char *buf)
86{
87 struct ib_port_attr attr;
88 ssize_t ret;
89
90 static const char *state_name[] = {
91 [IB_PORT_NOP] = "NOP",
92 [IB_PORT_DOWN] = "DOWN",
93 [IB_PORT_INIT] = "INIT",
94 [IB_PORT_ARMED] = "ARMED",
95 [IB_PORT_ACTIVE] = "ACTIVE",
96 [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER"
97 };
98
99 ret = ib_query_port(p->ibdev, p->port_num, &attr);
100 if (ret)
101 return ret;
102
103 return sprintf(buf, "%d: %s\n", attr.state,
104 attr.state >= 0 && attr.state <= ARRAY_SIZE(state_name) ?
105 state_name[attr.state] : "UNKNOWN");
106}
107
108static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused,
109 char *buf)
110{
111 struct ib_port_attr attr;
112 ssize_t ret;
113
114 ret = ib_query_port(p->ibdev, p->port_num, &attr);
115 if (ret)
116 return ret;
117
118 return sprintf(buf, "0x%x\n", attr.lid);
119}
120
121static ssize_t lid_mask_count_show(struct ib_port *p,
122 struct port_attribute *unused,
123 char *buf)
124{
125 struct ib_port_attr attr;
126 ssize_t ret;
127
128 ret = ib_query_port(p->ibdev, p->port_num, &attr);
129 if (ret)
130 return ret;
131
132 return sprintf(buf, "%d\n", attr.lmc);
133}
134
135static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused,
136 char *buf)
137{
138 struct ib_port_attr attr;
139 ssize_t ret;
140
141 ret = ib_query_port(p->ibdev, p->port_num, &attr);
142 if (ret)
143 return ret;
144
145 return sprintf(buf, "0x%x\n", attr.sm_lid);
146}
147
148static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused,
149 char *buf)
150{
151 struct ib_port_attr attr;
152 ssize_t ret;
153
154 ret = ib_query_port(p->ibdev, p->port_num, &attr);
155 if (ret)
156 return ret;
157
158 return sprintf(buf, "%d\n", attr.sm_sl);
159}
160
161static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused,
162 char *buf)
163{
164 struct ib_port_attr attr;
165 ssize_t ret;
166
167 ret = ib_query_port(p->ibdev, p->port_num, &attr);
168 if (ret)
169 return ret;
170
171 return sprintf(buf, "0x%08x\n", attr.port_cap_flags);
172}
173
174static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused,
175 char *buf)
176{
177 struct ib_port_attr attr;
178 char *speed = "";
179 int rate;
180 ssize_t ret;
181
182 ret = ib_query_port(p->ibdev, p->port_num, &attr);
183 if (ret)
184 return ret;
185
186 switch (attr.active_speed) {
187 case 2: speed = " DDR"; break;
188 case 4: speed = " QDR"; break;
189 }
190
191 rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed;
192 if (rate < 0)
193 return -EINVAL;
194
195 return sprintf(buf, "%d%s Gb/sec (%dX%s)\n",
196 rate / 10, rate % 10 ? ".5" : "",
197 ib_width_enum_to_int(attr.active_width), speed);
198}
199
200static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused,
201 char *buf)
202{
203 struct ib_port_attr attr;
204
205 ssize_t ret;
206
207 ret = ib_query_port(p->ibdev, p->port_num, &attr);
208 if (ret)
209 return ret;
210
211 switch (attr.phys_state) {
212 case 1: return sprintf(buf, "1: Sleep\n");
213 case 2: return sprintf(buf, "2: Polling\n");
214 case 3: return sprintf(buf, "3: Disabled\n");
215 case 4: return sprintf(buf, "4: PortConfigurationTraining\n");
216 case 5: return sprintf(buf, "5: LinkUp\n");
217 case 6: return sprintf(buf, "6: LinkErrorRecovery\n");
218 case 7: return sprintf(buf, "7: Phy Test\n");
219 default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state);
220 }
221}
222
223static PORT_ATTR_RO(state);
224static PORT_ATTR_RO(lid);
225static PORT_ATTR_RO(lid_mask_count);
226static PORT_ATTR_RO(sm_lid);
227static PORT_ATTR_RO(sm_sl);
228static PORT_ATTR_RO(cap_mask);
229static PORT_ATTR_RO(rate);
230static PORT_ATTR_RO(phys_state);
231
232static struct attribute *port_default_attrs[] = {
233 &port_attr_state.attr,
234 &port_attr_lid.attr,
235 &port_attr_lid_mask_count.attr,
236 &port_attr_sm_lid.attr,
237 &port_attr_sm_sl.attr,
238 &port_attr_cap_mask.attr,
239 &port_attr_rate.attr,
240 &port_attr_phys_state.attr,
241 NULL
242};
243
244static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr,
245 char *buf)
246{
247 struct port_table_attribute *tab_attr =
248 container_of(attr, struct port_table_attribute, attr);
249 union ib_gid gid;
250 ssize_t ret;
251
252 ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid);
253 if (ret)
254 return ret;
255
256 return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
257 be16_to_cpu(((u16 *) gid.raw)[0]),
258 be16_to_cpu(((u16 *) gid.raw)[1]),
259 be16_to_cpu(((u16 *) gid.raw)[2]),
260 be16_to_cpu(((u16 *) gid.raw)[3]),
261 be16_to_cpu(((u16 *) gid.raw)[4]),
262 be16_to_cpu(((u16 *) gid.raw)[5]),
263 be16_to_cpu(((u16 *) gid.raw)[6]),
264 be16_to_cpu(((u16 *) gid.raw)[7]));
265}
266
267static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr,
268 char *buf)
269{
270 struct port_table_attribute *tab_attr =
271 container_of(attr, struct port_table_attribute, attr);
272 u16 pkey;
273 ssize_t ret;
274
275 ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey);
276 if (ret)
277 return ret;
278
279 return sprintf(buf, "0x%04x\n", pkey);
280}
281
282#define PORT_PMA_ATTR(_name, _counter, _width, _offset) \
283struct port_table_attribute port_pma_attr_##_name = { \
284 .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \
285 .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \
286}
287
288static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr,
289 char *buf)
290{
291 struct port_table_attribute *tab_attr =
292 container_of(attr, struct port_table_attribute, attr);
293 int offset = tab_attr->index & 0xffff;
294 int width = (tab_attr->index >> 16) & 0xff;
295 struct ib_mad *in_mad = NULL;
296 struct ib_mad *out_mad = NULL;
297 ssize_t ret;
298
299 if (!p->ibdev->process_mad)
300 return sprintf(buf, "N/A (no PMA)\n");
301
302 in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
303 out_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
304 if (!in_mad || !out_mad) {
305 ret = -ENOMEM;
306 goto out;
307 }
308
309 memset(in_mad, 0, sizeof *in_mad);
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] >>
329 (offset % 4)) & 0xf);
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",
336 be16_to_cpup((u16 *)(out_mad->data + 40 + offset / 8)));
337 break;
338 case 32:
339 ret = sprintf(buf, "%u\n",
340 be32_to_cpup((u32 *)(out_mad->data + 40 + offset / 8)));
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
401 for (i = 0; (a = p->gid_attr[i]); ++i) {
402 kfree(a->name);
403 kfree(a);
404 }
405
406 for (i = 0; (a = p->pkey_attr[i]); ++i) {
407 kfree(a->name);
408 kfree(a);
409 }
410
411 kfree(p->gid_attr);
412 kfree(p);
413}
414
415static struct kobj_type port_type = {
416 .release = ib_port_release,
417 .sysfs_ops = &port_sysfs_ops,
418 .default_attrs = port_default_attrs
419};
420
421static void ib_device_release(struct class_device *cdev)
422{
423 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
424
425 kfree(dev);
426}
427
428static int ib_device_hotplug(struct class_device *cdev, char **envp,
429 int num_envp, char *buf, int size)
430{
431 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
432 int i = 0, len = 0;
433
434 if (add_hotplug_env_var(envp, num_envp, &i, buf, size, &len,
435 "NAME=%s", dev->name))
436 return -ENOMEM;
437
438 /*
439 * It might be nice to pass the node GUID to hotplug, but
440 * right now the only way to get it is to query the device
441 * provider, and this can crash during device removal because
442 * we are will be running after driver removal has started.
443 * We could add a node_guid field to struct ib_device, or we
444 * could just let the hotplug script read the node GUID from
445 * sysfs when devices are added.
446 */
447
448 envp[i] = NULL;
449 return 0;
450}
451
452static int alloc_group(struct attribute ***attr,
453 ssize_t (*show)(struct ib_port *,
454 struct port_attribute *, char *buf),
455 int len)
456{
457 struct port_table_attribute ***tab_attr =
458 (struct port_table_attribute ***) attr;
459 int i;
460 int ret;
461
462 *tab_attr = kmalloc((1 + len) * sizeof *tab_attr, GFP_KERNEL);
463 if (!*tab_attr)
464 return -ENOMEM;
465
466 memset(*tab_attr, 0, (1 + len) * sizeof *tab_attr);
467
468 for (i = 0; i < len; ++i) {
469 (*tab_attr)[i] = kmalloc(sizeof *(*tab_attr)[i], GFP_KERNEL);
470 if (!(*tab_attr)[i]) {
471 ret = -ENOMEM;
472 goto err;
473 }
474 memset((*tab_attr)[i], 0, sizeof *(*tab_attr)[i]);
475 (*tab_attr)[i]->attr.attr.name = kmalloc(8, GFP_KERNEL);
476 if (!(*tab_attr)[i]->attr.attr.name) {
477 ret = -ENOMEM;
478 goto err;
479 }
480
481 if (snprintf((*tab_attr)[i]->attr.attr.name, 8, "%d", i) >= 8) {
482 ret = -ENOMEM;
483 goto err;
484 }
485
486 (*tab_attr)[i]->attr.attr.mode = S_IRUGO;
487 (*tab_attr)[i]->attr.attr.owner = THIS_MODULE;
488 (*tab_attr)[i]->attr.show = show;
489 (*tab_attr)[i]->index = i;
490 }
491
492 return 0;
493
494err:
495 for (i = 0; i < len; ++i) {
496 if ((*tab_attr)[i])
497 kfree((*tab_attr)[i]->attr.attr.name);
498 kfree((*tab_attr)[i]);
499 }
500
501 kfree(*tab_attr);
502
503 return ret;
504}
505
506static int add_port(struct ib_device *device, int port_num)
507{
508 struct ib_port *p;
509 struct ib_port_attr attr;
510 int i;
511 int ret;
512
513 ret = ib_query_port(device, port_num, &attr);
514 if (ret)
515 return ret;
516
517 p = kmalloc(sizeof *p, GFP_KERNEL);
518 if (!p)
519 return -ENOMEM;
520 memset(p, 0, sizeof *p);
521
522 p->ibdev = device;
523 p->port_num = port_num;
524 p->kobj.ktype = &port_type;
525
526 p->kobj.parent = kobject_get(&device->ports_parent);
527 if (!p->kobj.parent) {
528 ret = -EBUSY;
529 goto err;
530 }
531
532 ret = kobject_set_name(&p->kobj, "%d", port_num);
533 if (ret)
534 goto err_put;
535
536 ret = kobject_register(&p->kobj);
537 if (ret)
538 goto err_put;
539
540 ret = sysfs_create_group(&p->kobj, &pma_group);
541 if (ret)
542 goto err_put;
543
544 ret = alloc_group(&p->gid_attr, show_port_gid, attr.gid_tbl_len);
545 if (ret)
546 goto err_remove_pma;
547
548 p->gid_group.name = "gids";
549 p->gid_group.attrs = p->gid_attr;
550
551 ret = sysfs_create_group(&p->kobj, &p->gid_group);
552 if (ret)
553 goto err_free_gid;
554
555 ret = alloc_group(&p->pkey_attr, show_port_pkey, attr.pkey_tbl_len);
556 if (ret)
557 goto err_remove_gid;
558
559 p->pkey_group.name = "pkeys";
560 p->pkey_group.attrs = p->pkey_attr;
561
562 ret = sysfs_create_group(&p->kobj, &p->pkey_group);
563 if (ret)
564 goto err_free_pkey;
565
566 list_add_tail(&p->kobj.entry, &device->port_list);
567
568 return 0;
569
570err_free_pkey:
571 for (i = 0; i < attr.pkey_tbl_len; ++i) {
572 kfree(p->pkey_attr[i]->name);
573 kfree(p->pkey_attr[i]);
574 }
575
576 kfree(p->pkey_attr);
577
578err_remove_gid:
579 sysfs_remove_group(&p->kobj, &p->gid_group);
580
581err_free_gid:
582 for (i = 0; i < attr.gid_tbl_len; ++i) {
583 kfree(p->gid_attr[i]->name);
584 kfree(p->gid_attr[i]);
585 }
586
587 kfree(p->gid_attr);
588
589err_remove_pma:
590 sysfs_remove_group(&p->kobj, &pma_group);
591
592err_put:
593 kobject_put(&device->ports_parent);
594
595err:
596 kfree(p);
597 return ret;
598}
599
600static ssize_t show_node_type(struct class_device *cdev, char *buf)
601{
602 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
603
604 switch (dev->node_type) {
605 case IB_NODE_CA: return sprintf(buf, "%d: CA\n", dev->node_type);
606 case IB_NODE_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type);
607 case IB_NODE_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type);
608 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type);
609 }
610}
611
612static ssize_t show_sys_image_guid(struct class_device *cdev, char *buf)
613{
614 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
615 struct ib_device_attr attr;
616 ssize_t ret;
617
618 ret = ib_query_device(dev, &attr);
619 if (ret)
620 return ret;
621
622 return sprintf(buf, "%04x:%04x:%04x:%04x\n",
623 be16_to_cpu(((u16 *) &attr.sys_image_guid)[0]),
624 be16_to_cpu(((u16 *) &attr.sys_image_guid)[1]),
625 be16_to_cpu(((u16 *) &attr.sys_image_guid)[2]),
626 be16_to_cpu(((u16 *) &attr.sys_image_guid)[3]));
627}
628
629static ssize_t show_node_guid(struct class_device *cdev, char *buf)
630{
631 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
632 struct ib_device_attr attr;
633 ssize_t ret;
634
635 ret = ib_query_device(dev, &attr);
636 if (ret)
637 return ret;
638
639 return sprintf(buf, "%04x:%04x:%04x:%04x\n",
640 be16_to_cpu(((u16 *) &attr.node_guid)[0]),
641 be16_to_cpu(((u16 *) &attr.node_guid)[1]),
642 be16_to_cpu(((u16 *) &attr.node_guid)[2]),
643 be16_to_cpu(((u16 *) &attr.node_guid)[3]));
644}
645
646static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
647static CLASS_DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
648static CLASS_DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
649
650static struct class_device_attribute *ib_class_attributes[] = {
651 &class_device_attr_node_type,
652 &class_device_attr_sys_image_guid,
653 &class_device_attr_node_guid
654};
655
656static struct class ib_class = {
657 .name = "infiniband",
658 .release = ib_device_release,
659 .hotplug = ib_device_hotplug,
660};
661
662int ib_device_register_sysfs(struct ib_device *device)
663{
664 struct class_device *class_dev = &device->class_dev;
665 int ret;
666 int i;
667
668 class_dev->class = &ib_class;
669 class_dev->class_data = device;
670 strlcpy(class_dev->class_id, device->name, BUS_ID_SIZE);
671
672 INIT_LIST_HEAD(&device->port_list);
673
674 ret = class_device_register(class_dev);
675 if (ret)
676 goto err;
677
678 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) {
679 ret = class_device_create_file(class_dev, ib_class_attributes[i]);
680 if (ret)
681 goto err_unregister;
682 }
683
684 device->ports_parent.parent = kobject_get(&class_dev->kobj);
685 if (!device->ports_parent.parent) {
686 ret = -EBUSY;
687 goto err_unregister;
688 }
689 ret = kobject_set_name(&device->ports_parent, "ports");
690 if (ret)
691 goto err_put;
692 ret = kobject_register(&device->ports_parent);
693 if (ret)
694 goto err_put;
695
696 if (device->node_type == IB_NODE_SWITCH) {
697 ret = add_port(device, 0);
698 if (ret)
699 goto err_put;
700 } else {
701 int i;
702
703 for (i = 1; i <= device->phys_port_cnt; ++i) {
704 ret = add_port(device, i);
705 if (ret)
706 goto err_put;
707 }
708 }
709
710 return 0;
711
712err_put:
713 {
714 struct kobject *p, *t;
715 struct ib_port *port;
716
717 list_for_each_entry_safe(p, t, &device->port_list, entry) {
718 list_del(&p->entry);
719 port = container_of(p, struct ib_port, kobj);
720 sysfs_remove_group(p, &pma_group);
721 sysfs_remove_group(p, &port->pkey_group);
722 sysfs_remove_group(p, &port->gid_group);
723 kobject_unregister(p);
724 }
725 }
726
727 kobject_put(&class_dev->kobj);
728
729err_unregister:
730 class_device_unregister(class_dev);
731
732err:
733 return ret;
734}
735
736void ib_device_unregister_sysfs(struct ib_device *device)
737{
738 struct kobject *p, *t;
739 struct ib_port *port;
740
741 list_for_each_entry_safe(p, t, &device->port_list, entry) {
742 list_del(&p->entry);
743 port = container_of(p, struct ib_port, kobj);
744 sysfs_remove_group(p, &pma_group);
745 sysfs_remove_group(p, &port->pkey_group);
746 sysfs_remove_group(p, &port->gid_group);
747 kobject_unregister(p);
748 }
749
750 kobject_unregister(&device->ports_parent);
751 class_device_unregister(&device->class_dev);
752}
753
754int ib_sysfs_setup(void)
755{
756 return class_register(&ib_class);
757}
758
759void ib_sysfs_cleanup(void)
760{
761 class_unregister(&ib_class);
762}
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-10 11:14:17 -0500