summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/qib/qib_sysfs.c
blob: 78fbd56879d417610fc4b88dd4898741b56843d3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
/*
 * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved.
 * Copyright (c) 2006 PathScale, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
#include <linux/ctype.h>

#include "qib.h"

/**
 * qib_parse_ushort - parse an unsigned short value in an arbitrary base
 * @str: the string containing the number
 * @valp: where to put the result
 *
 * Returns the number of bytes consumed, or negative value on error.
 */
static int qib_parse_ushort(const char *str, unsigned short *valp)
{
	unsigned long val;
	char *end;
	int ret;

	if (!isdigit(str[0])) {
		ret = -EINVAL;
		goto bail;
	}

	val = simple_strtoul(str, &end, 0);

	if (val > 0xffff) {
		ret = -EINVAL;
		goto bail;
	}

	*valp = val;

	ret = end + 1 - str;
	if (ret == 0)
		ret = -EINVAL;

bail:
	return ret;
}

/* start of per-port functions */
/*
 * Get/Set heartbeat enable. OR of 1=enabled, 2=auto
 */
static ssize_t show_hrtbt_enb(struct qib_pportdata *ppd, char *buf)
{
	struct qib_devdata *dd = ppd->dd;
	int ret;

	ret = dd->f_get_ib_cfg(ppd, QIB_IB_CFG_HRTBT);
	ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
	return ret;
}

static ssize_t store_hrtbt_enb(struct qib_pportdata *ppd, const char *buf,
			       size_t count)
{
	struct qib_devdata *dd = ppd->dd;
	int ret;
	u16 val;

	ret = qib_parse_ushort(buf, &val);

	/*
	 * Set the "intentional" heartbeat enable per either of
	 * "Enable" and "Auto", as these are normally set together.
	 * This bit is consulted when leaving loopback mode,
	 * because entering loopback mode overrides it and automatically
	 * disables heartbeat.
	 */
	if (ret >= 0)
		ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val);
	if (ret < 0)
		qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n");
	return ret < 0 ? ret : count;
}

static ssize_t store_loopback(struct qib_pportdata *ppd, const char *buf,
			      size_t count)
{
	struct qib_devdata *dd = ppd->dd;
	int ret = count, r;

	r = dd->f_set_ib_loopback(ppd, buf);
	if (r < 0)
		ret = r;

	return ret;
}

static ssize_t store_led_override(struct qib_pportdata *ppd, const char *buf,
				  size_t count)
{
	struct qib_devdata *dd = ppd->dd;
	int ret;
	u16 val;

	ret = qib_parse_ushort(buf, &val);
	if (ret > 0)
		qib_set_led_override(ppd, val);
	else
		qib_dev_err(dd, "attempt to set invalid LED override\n");
	return ret < 0 ? ret : count;
}

static ssize_t show_status(struct qib_pportdata *ppd, char *buf)
{
	ssize_t ret;

	if (!ppd->statusp)
		ret = -EINVAL;
	else
		ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n",
				(unsigned long long) *(ppd->statusp));
	return ret;
}

/*
 * For userland compatibility, these offsets must remain fixed.
 * They are strings for QIB_STATUS_*
 */
static const char *qib_status_str[] = {
	"Initted",
	"",
	"",
	"",
	"",
	"Present",
	"IB_link_up",
	"IB_configured",
	"",
	"Fatal_Hardware_Error",
	NULL,
};

static ssize_t show_status_str(struct qib_pportdata *ppd, char *buf)
{
	int i, any;
	u64 s;
	ssize_t ret;

	if (!ppd->statusp) {
		ret = -EINVAL;
		goto bail;
	}

	s = *(ppd->statusp);
	*buf = '\0';
	for (any = i = 0; s && qib_status_str[i]; i++) {
		if (s & 1) {
			/* if overflow */
			if (any && strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE)
				break;
			if (strlcat(buf, qib_status_str[i], PAGE_SIZE) >=
					PAGE_SIZE)
				break;
			any = 1;
		}
		s >>= 1;
	}
	if (any)
		strlcat(buf, "\n", PAGE_SIZE);

	ret = strlen(buf);

bail:
	return ret;
}

/* end of per-port functions */

/*
 * Start of per-port file structures and support code
 * Because we are fitting into other infrastructure, we have to supply the
 * full set of kobject/sysfs_ops structures and routines.
 */
#define QIB_PORT_ATTR(name, mode, show, store) \
	static struct qib_port_attr qib_port_attr_##name = \
		__ATTR(name, mode, show, store)

struct qib_port_attr {
	struct attribute attr;
	ssize_t (*show)(struct qib_pportdata *, char *);
	ssize_t (*store)(struct qib_pportdata *, const char *, size_t);
};

QIB_PORT_ATTR(loopback, S_IWUSR, NULL, store_loopback);
QIB_PORT_ATTR(led_override, S_IWUSR, NULL, store_led_override);
QIB_PORT_ATTR(hrtbt_enable, S_IWUSR | S_IRUGO, show_hrtbt_enb,
	      store_hrtbt_enb);
QIB_PORT_ATTR(status, S_IRUGO, show_status, NULL);
QIB_PORT_ATTR(status_str, S_IRUGO, show_status_str, NULL);

static struct attribute *port_default_attributes[] = {
	&qib_port_attr_loopback.attr,
	&qib_port_attr_led_override.attr,
	&qib_port_attr_hrtbt_enable.attr,
	&qib_port_attr_status.attr,
	&qib_port_attr_status_str.attr,
	NULL
};

static ssize_t qib_portattr_show(struct kobject *kobj,
	struct attribute *attr, char *buf)
{
	struct qib_port_attr *pattr =
		container_of(attr, struct qib_port_attr, attr);
	struct qib_pportdata *ppd =
		container_of(kobj, struct qib_pportdata, pport_kobj);

	return pattr->show(ppd, buf);
}

static ssize_t qib_portattr_store(struct kobject *kobj,
	struct attribute *attr, const char *buf, size_t len)
{
	struct qib_port_attr *pattr =
		container_of(attr, struct qib_port_attr, attr);
	struct qib_pportdata *ppd =
		container_of(kobj, struct qib_pportdata, pport_kobj);

	return pattr->store(ppd, buf, len);
}

static void qib_port_release(struct kobject *kobj)
{
	/* nothing to do since memory is freed by qib_free_devdata() */
}

static const struct sysfs_ops qib_port_ops = {
	.show = qib_portattr_show,
	.store = qib_portattr_store,
};

static struct kobj_type qib_port_ktype = {
	.release = qib_port_release,
	.sysfs_ops = &qib_port_ops,
	.default_attrs = port_default_attributes
};

/* Start sl2vl */

#define QIB_SL2VL_ATTR(N) \
	static struct qib_sl2vl_attr qib_sl2vl_attr_##N = { \
		.attr = { .name = __stringify(N), .mode = 0444 }, \
		.sl = N \
	}

struct qib_sl2vl_attr {
	struct attribute attr;
	int sl;
};

QIB_SL2VL_ATTR(0);
QIB_SL2VL_ATTR(1);
QIB_SL2VL_ATTR(2);
QIB_SL2VL_ATTR(3);
QIB_SL2VL_ATTR(4);
QIB_SL2VL_ATTR(5);
QIB_SL2VL_ATTR(6);
QIB_SL2VL_ATTR(7);
QIB_SL2VL_ATTR(8);
QIB_SL2VL_ATTR(9);
QIB_SL2VL_ATTR(10);
QIB_SL2VL_ATTR(11);
QIB_SL2VL_ATTR(12);
QIB_SL2VL_ATTR(13);
QIB_SL2VL_ATTR(14);
QIB_SL2VL_ATTR(15);

static struct attribute *sl2vl_default_attributes[] = {
	&qib_sl2vl_attr_0.attr,
	&qib_sl2vl_attr_1.attr,
	&qib_sl2vl_attr_2.attr,
	&qib_sl2vl_attr_3.attr,
	&qib_sl2vl_attr_4.attr,
	&qib_sl2vl_attr_5.attr,
	&qib_sl2vl_attr_6.attr,
	&qib_sl2vl_attr_7.attr,
	&qib_sl2vl_attr_8.attr,
	&qib_sl2vl_attr_9.attr,
	&qib_sl2vl_attr_10.attr,
	&qib_sl2vl_attr_11.attr,
	&qib_sl2vl_attr_12.attr,
	&qib_sl2vl_attr_13.attr,
	&qib_sl2vl_attr_14.attr,
	&qib_sl2vl_attr_15.attr,
	NULL
};

static ssize_t sl2vl_attr_show(struct kobject *kobj, struct attribute *attr,
			       char *buf)
{
	struct qib_sl2vl_attr *sattr =
		container_of(attr, struct qib_sl2vl_attr, attr);
	struct qib_pportdata *ppd =
		container_of(kobj, struct qib_pportdata, sl2vl_kobj);
	struct qib_ibport *qibp = &ppd->ibport_data;

	return sprintf(buf, "%u\n", qibp->sl_to_vl[sattr->sl]);
}

static const struct sysfs_ops qib_sl2vl_ops = {
	.show = sl2vl_attr_show,
};

static struct kobj_type qib_sl2vl_ktype = {
	.release = qib_port_release,
	.sysfs_ops = &qib_sl2vl_ops,
	.default_attrs = sl2vl_default_attributes
};

/* End sl2vl */

/* Start diag_counters */

#define QIB_DIAGC_ATTR(N) \
	static struct qib_diagc_attr qib_diagc_attr_##N = { \
		.attr = { .name = __stringify(N), .mode = 0664 }, \
		.counter = offsetof(struct qib_ibport, n_##N) \
	}

struct qib_diagc_attr {
	struct attribute attr;
	size_t counter;
};

QIB_DIAGC_ATTR(rc_resends);
QIB_DIAGC_ATTR(rc_acks);
QIB_DIAGC_ATTR(rc_qacks);
QIB_DIAGC_ATTR(rc_delayed_comp);
QIB_DIAGC_ATTR(seq_naks);
QIB_DIAGC_ATTR(rdma_seq);
QIB_DIAGC_ATTR(rnr_naks);
QIB_DIAGC_ATTR(other_naks);
QIB_DIAGC_ATTR(rc_timeouts);
QIB_DIAGC_ATTR(loop_pkts);
QIB_DIAGC_ATTR(pkt_drops);
QIB_DIAGC_ATTR(dmawait);
QIB_DIAGC_ATTR(unaligned);
QIB_DIAGC_ATTR(rc_dupreq);
QIB_DIAGC_ATTR(rc_seqnak);

static struct attribute *diagc_default_attributes[] = {
	&qib_diagc_attr_rc_resends.attr,
	&qib_diagc_attr_rc_acks.attr,
	&qib_diagc_attr_rc_qacks.attr,
	&qib_diagc_attr_rc_delayed_comp.attr,
	&qib_diagc_attr_seq_naks.attr,
	&qib_diagc_attr_rdma_seq.attr,
	&qib_diagc_attr_rnr_naks.attr,
	&qib_diagc_attr_other_naks.attr,
	&qib_diagc_attr_rc_timeouts.attr,
	&qib_diagc_attr_loop_pkts.attr,
	&qib_diagc_attr_pkt_drops.attr,
	&qib_diagc_attr_dmawait.attr,
	&qib_diagc_attr_unaligned.attr,
	&qib_diagc_attr_rc_dupreq.attr,
	&qib_diagc_attr_rc_seqnak.attr,
	NULL
};

static ssize_t diagc_attr_show(struct kobject *kobj, struct attribute *attr,
			       char *buf)
{
	struct qib_diagc_attr *dattr =
		container_of(attr, struct qib_diagc_attr, attr);
	struct qib_pportdata *ppd =
		container_of(kobj, struct qib_pportdata, diagc_kobj);
	struct qib_ibport *qibp = &ppd->ibport_data;

	return sprintf(buf, "%u\n", *(u32 *)((char *)qibp + dattr->counter));
}

static ssize_t diagc_attr_store(struct kobject *kobj, struct attribute *attr,
				const char *buf, size_t size)
{
	struct qib_diagc_attr *dattr =
		container_of(attr, struct qib_diagc_attr, attr);
	struct qib_pportdata *ppd =
		container_of(kobj, struct qib_pportdata, diagc_kobj);
	struct qib_ibport *qibp = &ppd->ibport_data;
	char *endp;
	long val = simple_strtol(buf, &endp, 0);

	if (val < 0 || endp == buf)
		return -EINVAL;

	*(u32 *)((char *) qibp + dattr->counter) = val;
	return size;
}

static const struct sysfs_ops qib_diagc_ops = {
	.show = diagc_attr_show,
	.store = diagc_attr_store,
};

static struct kobj_type qib_diagc_ktype = {
	.release = qib_port_release,
	.sysfs_ops = &qib_diagc_ops,
	.default_attrs = diagc_default_attributes
};

/* End diag_counters */

/* end of per-port file structures and support code */

/*
 * Start of per-unit (or driver, in some cases, but replicated
 * per unit) functions (these get a device *)
 */
static ssize_t show_rev(struct device *device, struct device_attribute *attr,
			char *buf)
{
	struct qib_ibdev *dev =
		container_of(device, struct qib_ibdev, ibdev.dev);

	return sprintf(buf, "%x\n", dd_from_dev(dev)->minrev);
}

static ssize_t show_hca(struct device *device, struct device_attribute *attr,
			char *buf)
{
	struct qib_ibdev *dev =
		container_of(device, struct qib_ibdev, ibdev.dev);
	struct qib_devdata *dd = dd_from_dev(dev);
	int ret;

	if (!dd->boardname)
		ret = -EINVAL;
	else
		ret = scnprintf(buf, PAGE_SIZE, "%s\n", dd->boardname);
	return ret;
}

static ssize_t show_version(struct device *device,
			    struct device_attribute *attr, char *buf)
{
	/* The string printed here is already newline-terminated. */
	return scnprintf(buf, PAGE_SIZE, "%s", (char *)ib_qib_version);
}

static ssize_t show_boardversion(struct device *device,
				 struct device_attribute *attr, char *buf)
{
	struct qib_ibdev *dev =
		container_of(device, struct qib_ibdev, ibdev.dev);
	struct qib_devdata *dd = dd_from_dev(dev);

	/* The string printed here is already newline-terminated. */
	return scnprintf(buf, PAGE_SIZE, "%s", dd->boardversion);
}


static ssize_t show_localbus_info(struct device *device,
				  struct device_attribute *attr, char *buf)
{
	struct qib_ibdev *dev =
		container_of(device, struct qib_ibdev, ibdev.dev);
	struct qib_devdata *dd = dd_from_dev(dev);

	/* The string printed here is already newline-terminated. */
	return scnprintf(buf, PAGE_SIZE, "%s", dd->lbus_info);
}


static ssize_t show_nctxts(struct device *device,
			   struct device_attribute *attr, char *buf)
{
	struct qib_ibdev *dev =
		container_of(device, struct qib_ibdev, ibdev.dev);
	struct qib_devdata *dd = dd_from_dev(dev);

	/* Return the number of user ports (contexts) available. */
	return scnprintf(buf, PAGE_SIZE, "%u\n", dd->cfgctxts -
		dd->first_user_ctxt);
}

static ssize_t show_nfreectxts(struct device *device,
			   struct device_attribute *attr, char *buf)
{
	struct qib_ibdev *dev =
		container_of(device, struct qib_ibdev, ibdev.dev);
	struct qib_devdata *dd = dd_from_dev(dev);

	/* Return the number of free user ports (contexts) available. */
	return scnprintf(buf, PAGE_SIZE, "%u\n", dd->freectxts);
}

static ssize_t show_serial(struct device *device,
			   struct device_attribute *attr, char *buf)
{
	struct qib_ibdev *dev =
		container_of(device, struct qib_ibdev, ibdev.dev);
	struct qib_devdata *dd = dd_from_dev(dev);

	buf[sizeof dd->serial] = '\0';
	memcpy(buf, dd->serial, sizeof dd->serial);
	strcat(buf, "\n");
	return strlen(buf);
}

static ssize_t store_chip_reset(struct device *device,
				struct device_attribute *attr, const char *buf,
				size_t count)
{
	struct qib_ibdev *dev =
		container_of(device, struct qib_ibdev, ibdev.dev);
	struct qib_devdata *dd = dd_from_dev(dev);
	int ret;

	if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) {
		ret = -EINVAL;
		goto bail;
	}

	ret = qib_reset_device(dd->unit);
bail:
	return ret < 0 ? ret : count;
}

static ssize_t show_logged_errs(struct device *device,
				struct device_attribute *attr, char *buf)
{
	struct qib_ibdev *dev =
		container_of(device, struct qib_ibdev, ibdev.dev);
	struct qib_devdata *dd = dd_from_dev(dev);
	int idx, count;

	/* force consistency with actual EEPROM */
	if (qib_update_eeprom_log(dd) != 0)
		return -ENXIO;

	count = 0;
	for (idx = 0; idx < QIB_EEP_LOG_CNT; ++idx) {
		count += scnprintf(buf + count, PAGE_SIZE - count, "%d%c",
				   dd->eep_st_errs[idx],
				   idx == (QIB_EEP_LOG_CNT - 1) ? '\n' : ' ');
	}

	return count;
}

/*
 * Dump tempsense regs. in decimal, to ease shell-scripts.
 */
static ssize_t show_tempsense(struct device *device,
			      struct device_attribute *attr, char *buf)
{
	struct qib_ibdev *dev =
		container_of(device, struct qib_ibdev, ibdev.dev);
	struct qib_devdata *dd = dd_from_dev(dev);
	int ret;
	int idx;
	u8 regvals[8];

	ret = -ENXIO;
	for (idx = 0; idx < 8; ++idx) {
		if (idx == 6)
			continue;
		ret = dd->f_tempsense_rd(dd, idx);
		if (ret < 0)
			break;
		regvals[idx] = ret;
	}
	if (idx == 8)
		ret = scnprintf(buf, PAGE_SIZE, "%d %d %02X %02X %d %d\n",
				*(signed char *)(regvals),
				*(signed char *)(regvals + 1),
				regvals[2], regvals[3],
				*(signed char *)(regvals + 5),
				*(signed char *)(regvals + 7));
	return ret;
}

/*
 * end of per-unit (or driver, in some cases, but replicated
 * per unit) functions
 */

/* start of per-unit file structures and support code */
static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
static DEVICE_ATTR(board_id, S_IRUGO, show_hca, NULL);
static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
static DEVICE_ATTR(nctxts, S_IRUGO, show_nctxts, NULL);
static DEVICE_ATTR(nfreectxts, S_IRUGO, show_nfreectxts, NULL);
static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL);
static DEVICE_ATTR(logged_errors, S_IRUGO, show_logged_errs, NULL);
static DEVICE_ATTR(tempsense, S_IRUGO, show_tempsense, NULL);
static DEVICE_ATTR(localbus_info, S_IRUGO, show_localbus_info, NULL);
static DEVICE_ATTR(chip_reset, S_IWUSR, NULL, store_chip_reset);

static struct device_attribute *qib_attributes[] = {
	&dev_attr_hw_rev,
	&dev_attr_hca_type,
	&dev_attr_board_id,
	&dev_attr_version,
	&dev_attr_nctxts,
	&dev_attr_nfreectxts,
	&dev_attr_serial,
	&dev_attr_boardversion,
	&dev_attr_logged_errors,
	&dev_attr_tempsense,
	&dev_attr_localbus_info,
	&dev_attr_chip_reset,
};

int qib_create_port_files(struct ib_device *ibdev, u8 port_num,
			  struct kobject *kobj)
{
	struct qib_pportdata *ppd;
	struct qib_devdata *dd = dd_from_ibdev(ibdev);
	int ret;

	if (!port_num || port_num > dd->num_pports) {
		qib_dev_err(dd, "Skipping infiniband class with "
			    "invalid port %u\n", port_num);
		ret = -ENODEV;
		goto bail;
	}
	ppd = &dd->pport[port_num - 1];

	ret = kobject_init_and_add(&ppd->pport_kobj, &qib_port_ktype, kobj,
				   "linkcontrol");
	if (ret) {
		qib_dev_err(dd, "Skipping linkcontrol sysfs info, "
			    "(err %d) port %u\n", ret, port_num);
		goto bail;
	}
	kobject_uevent(&ppd->pport_kobj, KOBJ_ADD);

	ret = kobject_init_and_add(&ppd->sl2vl_kobj, &qib_sl2vl_ktype, kobj,
				   "sl2vl");
	if (ret) {
		qib_dev_err(dd, "Skipping sl2vl sysfs info, "
			    "(err %d) port %u\n", ret, port_num);
		goto bail_sl;
	}
	kobject_uevent(&ppd->sl2vl_kobj, KOBJ_ADD);

	ret = kobject_init_and_add(&ppd->diagc_kobj, &qib_diagc_ktype, kobj,
				   "diag_counters");
	if (ret) {
		qib_dev_err(dd, "Skipping diag_counters sysfs info, "
			    "(err %d) port %u\n", ret, port_num);
		goto bail_diagc;
	}
	kobject_uevent(&ppd->diagc_kobj, KOBJ_ADD);

	return 0;

bail_diagc:
	kobject_put(&ppd->sl2vl_kobj);
bail_sl:
	kobject_put(&ppd->pport_kobj);
bail:
	return ret;
}

/*
 * Register and create our files in /sys/class/infiniband.
 */
int qib_verbs_register_sysfs(struct qib_devdata *dd)
{
	struct ib_device *dev = &dd->verbs_dev.ibdev;
	int i, ret;

	for (i = 0; i < ARRAY_SIZE(qib_attributes); ++i) {
		ret = device_create_file(&dev->dev, qib_attributes[i]);
		if (ret)
			return ret;
	}

	return 0;
}

/*
 * Unregister and remove our files in /sys/class/infiniband.
 */
void qib_verbs_unregister_sysfs(struct qib_devdata *dd)
{
	struct qib_pportdata *ppd;
	int i;

	for (i = 0; i < dd->num_pports; i++) {
		ppd = &dd->pport[i];
		kobject_put(&ppd->pport_kobj);
		kobject_put(&ppd->sl2vl_kobj);
	}
}
OpenPOWER on IntegriCloud