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IB/ipath: Fix crash on unload introduced by sysfs changes
[deliverable/linux.git] / drivers / infiniband / hw / ipath / ipath_sysfs.c
CommitLineData
3e9b4a5e 1/*
87427da5 2 * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved.
3e9b4a5e
BS		 3 * Copyright (c) 2006 PathScale, Inc. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
33
34#include <linux/ctype.h>
3e9b4a5e
BS		 35
36#include "ipath_kernel.h"
27b678dd 37#include "ipath_common.h"
3e9b4a5e
BS		 38
39/**
40 * ipath_parse_ushort - parse an unsigned short value in an arbitrary base
41 * @str: the string containing the number
42 * @valp: where to put the result
43 *
44 * returns the number of bytes consumed, or negative value on error
45 */
46int ipath_parse_ushort(const char *str, unsigned short *valp)
47{
48 unsigned long val;
49 char *end;
50 int ret;
51
52 if (!isdigit(str[0])) {
53 ret = -EINVAL;
54 goto bail;
55 }
56
57 val = simple_strtoul(str, &end, 0);
58
59 if (val > 0xffff) {
60 ret = -EINVAL;
61 goto bail;
62 }
63
64 *valp = val;
65
66 ret = end + 1 - str;
67 if (ret == 0)
68 ret = -EINVAL;
69
70bail:
71 return ret;
72}
73
74static ssize_t show_version(struct device_driver *dev, char *buf)
75{
76 /* The string printed here is already newline-terminated. */
b55f4f06 77 return scnprintf(buf, PAGE_SIZE, "%s", ib_ipath_version);
3e9b4a5e
BS		 78}
79
80static ssize_t show_num_units(struct device_driver *dev, char *buf)
81{
82 return scnprintf(buf, PAGE_SIZE, "%d\n",
83 ipath_count_units(NULL, NULL, NULL));
84}
85
3e9b4a5e
BS		 86static ssize_t show_status(struct device *dev,
87 struct device_attribute *attr,
88 char *buf)
89{
90 struct ipath_devdata *dd = dev_get_drvdata(dev);
91 ssize_t ret;
92
93 if (!dd->ipath_statusp) {
94 ret = -EINVAL;
95 goto bail;
96 }
97
98 ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n",
99 (unsigned long long) *(dd->ipath_statusp));
100
101bail:
102 return ret;
103}
104
105static const char *ipath_status_str[] = {
106 "Initted",
107 "Disabled",
108 "Admin_Disabled",
0fd41363
BS		 109 "", /* This used to be the old "OIB_SMA" status. */
110 "", /* This used to be the old "SMA" status. */
3e9b4a5e
BS		 111 "Present",
112 "IB_link_up",
113 "IB_configured",
114 "NoIBcable",
115 "Fatal_Hardware_Error",
116 NULL,
117};
118
119static ssize_t show_status_str(struct device *dev,
120 struct device_attribute *attr,
121 char *buf)
122{
123 struct ipath_devdata *dd = dev_get_drvdata(dev);
124 int i, any;
125 u64 s;
126 ssize_t ret;
127
128 if (!dd->ipath_statusp) {
129 ret = -EINVAL;
130 goto bail;
131 }
132
133 s = *(dd->ipath_statusp);
134 *buf = '\0';
135 for (any = i = 0; s && ipath_status_str[i]; i++) {
136 if (s & 1) {
137 if (any && strlcat(buf, " ", PAGE_SIZE) >=
138 PAGE_SIZE)
139 /* overflow */
140 break;
141 if (strlcat(buf, ipath_status_str[i],
142 PAGE_SIZE) >= PAGE_SIZE)
143 break;
144 any = 1;
145 }
146 s >>= 1;
147 }
148 if (any)
149 strlcat(buf, "\n", PAGE_SIZE);
150
151 ret = strlen(buf);
152
153bail:
154 return ret;
155}
156
157static ssize_t show_boardversion(struct device *dev,
158 struct device_attribute *attr,
159 char *buf)
160{
161 struct ipath_devdata *dd = dev_get_drvdata(dev);
162 /* The string printed here is already newline-terminated. */
163 return scnprintf(buf, PAGE_SIZE, "%s", dd->ipath_boardversion);
164}
165
15cba26f
RC		 166static ssize_t show_lmc(struct device *dev,
167 struct device_attribute *attr,
168 char *buf)
169{
170 struct ipath_devdata *dd = dev_get_drvdata(dev);
171
172 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_lmc);
173}
174
175static ssize_t store_lmc(struct device *dev,
176 struct device_attribute *attr,
177 const char *buf,
178 size_t count)
179{
180 struct ipath_devdata *dd = dev_get_drvdata(dev);
181 u16 lmc = 0;
182 int ret;
183
184 ret = ipath_parse_ushort(buf, &lmc);
185 if (ret < 0)
186 goto invalid;
187
188 if (lmc > 7) {
189 ret = -EINVAL;
190 goto invalid;
191 }
192
193 ipath_set_lid(dd, dd->ipath_lid, lmc);
194
195 goto bail;
196invalid:
197 ipath_dev_err(dd, "attempt to set invalid LMC %u\n", lmc);
198bail:
199 return ret;
200}
201
3e9b4a5e
BS		 202static ssize_t show_lid(struct device *dev,
203 struct device_attribute *attr,
204 char *buf)
205{
206 struct ipath_devdata *dd = dev_get_drvdata(dev);
207
208 return scnprintf(buf, PAGE_SIZE, "0x%x\n", dd->ipath_lid);
209}
210
211static ssize_t store_lid(struct device *dev,
212 struct device_attribute *attr,
213 const char *buf,
214 size_t count)
215{
216 struct ipath_devdata *dd = dev_get_drvdata(dev);
1eb68b99 217 u16 lid = 0;
3e9b4a5e
BS		 218 int ret;
219
220 ret = ipath_parse_ushort(buf, &lid);
221 if (ret < 0)
222 goto invalid;
223
27b678dd 224 if (lid == 0 || lid >= IPATH_MULTICAST_LID_BASE) {
3e9b4a5e
BS		 225 ret = -EINVAL;
226 goto invalid;
227 }
228
15cba26f 229 ipath_set_lid(dd, lid, dd->ipath_lmc);
3e9b4a5e
BS		 230
231 goto bail;
232invalid:
1eb68b99 233 ipath_dev_err(dd, "attempt to set invalid LID 0x%x\n", lid);
3e9b4a5e
BS		 234bail:
235 return ret;
236}
237
238static ssize_t show_mlid(struct device *dev,
239 struct device_attribute *attr,
240 char *buf)
241{
242 struct ipath_devdata *dd = dev_get_drvdata(dev);
243
244 return scnprintf(buf, PAGE_SIZE, "0x%x\n", dd->ipath_mlid);
245}
246
247static ssize_t store_mlid(struct device *dev,
248 struct device_attribute *attr,
249 const char *buf,
250 size_t count)
251{
252 struct ipath_devdata *dd = dev_get_drvdata(dev);
3e9b4a5e
BS		 253 u16 mlid;
254 int ret;
255
256 ret = ipath_parse_ushort(buf, &mlid);
27b678dd 257 if (ret < 0 || mlid < IPATH_MULTICAST_LID_BASE)
3e9b4a5e
BS		 258 goto invalid;
259
3e9b4a5e 260 dd->ipath_mlid = mlid;
3e9b4a5e
BS		 261
262 goto bail;
263invalid:
264 ipath_dev_err(dd, "attempt to set invalid MLID\n");
265bail:
266 return ret;
267}
268
269static ssize_t show_guid(struct device *dev,
270 struct device_attribute *attr,
271 char *buf)
272{
273 struct ipath_devdata *dd = dev_get_drvdata(dev);
274 u8 *guid;
275
276 guid = (u8 *) & (dd->ipath_guid);
277
278 return scnprintf(buf, PAGE_SIZE,
279 "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
280 guid[0], guid[1], guid[2], guid[3],
281 guid[4], guid[5], guid[6], guid[7]);
282}
283
284static ssize_t store_guid(struct device *dev,
285 struct device_attribute *attr,
286 const char *buf,
287 size_t count)
288{
289 struct ipath_devdata *dd = dev_get_drvdata(dev);
290 ssize_t ret;
291 unsigned short guid[8];
11b054fe 292 __be64 new_guid;
3e9b4a5e
BS		 293 u8 *ng;
294 int i;
295
296 if (sscanf(buf, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx",
297 &guid[0], &guid[1], &guid[2], &guid[3],
298 &guid[4], &guid[5], &guid[6], &guid[7]) != 8)
299 goto invalid;
300
11b054fe 301 ng = (u8 *) &new_guid;
3e9b4a5e
BS		 302
303 for (i = 0; i < 8; i++) {
304 if (guid[i] > 0xff)
305 goto invalid;
306 ng[i] = guid[i];
307 }
308
11b054fe
BS		 309 if (new_guid == 0)
310 goto invalid;
311
312 dd->ipath_guid = new_guid;
3e9b4a5e
BS		 313 dd->ipath_nguid = 1;
314
315 ret = strlen(buf);
316 goto bail;
317
318invalid:
319 ipath_dev_err(dd, "attempt to set invalid GUID\n");
320 ret = -EINVAL;
321
322bail:
323 return ret;
324}
325
326static ssize_t show_nguid(struct device *dev,
327 struct device_attribute *attr,
328 char *buf)
329{
330 struct ipath_devdata *dd = dev_get_drvdata(dev);
331
332 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_nguid);
333}
334
9929b0fb
BS		 335static ssize_t show_nports(struct device *dev,
336 struct device_attribute *attr,
337 char *buf)
338{
339 struct ipath_devdata *dd = dev_get_drvdata(dev);
340
341 /* Return the number of user ports available. */
342 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_cfgports - 1);
343}
344
3e9b4a5e
BS		 345static ssize_t show_serial(struct device *dev,
346 struct device_attribute *attr,
347 char *buf)
348{
349 struct ipath_devdata *dd = dev_get_drvdata(dev);
350
351 buf[sizeof dd->ipath_serial] = '\0';
352 memcpy(buf, dd->ipath_serial, sizeof dd->ipath_serial);
353 strcat(buf, "\n");
354 return strlen(buf);
355}
356
357static ssize_t show_unit(struct device *dev,
358 struct device_attribute *attr,
359 char *buf)
360{
361 struct ipath_devdata *dd = dev_get_drvdata(dev);
362
363 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_unit);
364}
365
366#define DEVICE_COUNTER(name, attr) \
367 static ssize_t show_counter_##name(struct device *dev, \
368 struct device_attribute *attr, \
369 char *buf) \
370 { \
371 struct ipath_devdata *dd = dev_get_drvdata(dev); \
372 return scnprintf(\
373 buf, PAGE_SIZE, "%llu\n", (unsigned long long) \
374 ipath_snap_cntr( \
375 dd, offsetof(struct infinipath_counters, \
376 attr) / sizeof(u64))); \
377 } \
378 static DEVICE_ATTR(name, S_IRUGO, show_counter_##name, NULL);
379
380DEVICE_COUNTER(ib_link_downeds, IBLinkDownedCnt);
381DEVICE_COUNTER(ib_link_err_recoveries, IBLinkErrRecoveryCnt);
382DEVICE_COUNTER(ib_status_changes, IBStatusChangeCnt);
383DEVICE_COUNTER(ib_symbol_errs, IBSymbolErrCnt);
384DEVICE_COUNTER(lb_flow_stalls, LBFlowStallCnt);
385DEVICE_COUNTER(lb_ints, LBIntCnt);
386DEVICE_COUNTER(rx_bad_formats, RxBadFormatCnt);
387DEVICE_COUNTER(rx_buf_ovfls, RxBufOvflCnt);
388DEVICE_COUNTER(rx_data_pkts, RxDataPktCnt);
389DEVICE_COUNTER(rx_dropped_pkts, RxDroppedPktCnt);
390DEVICE_COUNTER(rx_dwords, RxDwordCnt);
391DEVICE_COUNTER(rx_ebps, RxEBPCnt);
392DEVICE_COUNTER(rx_flow_ctrl_errs, RxFlowCtrlErrCnt);
393DEVICE_COUNTER(rx_flow_pkts, RxFlowPktCnt);
394DEVICE_COUNTER(rx_icrc_errs, RxICRCErrCnt);
395DEVICE_COUNTER(rx_len_errs, RxLenErrCnt);
396DEVICE_COUNTER(rx_link_problems, RxLinkProblemCnt);
397DEVICE_COUNTER(rx_lpcrc_errs, RxLPCRCErrCnt);
398DEVICE_COUNTER(rx_max_min_len_errs, RxMaxMinLenErrCnt);
399DEVICE_COUNTER(rx_p0_hdr_egr_ovfls, RxP0HdrEgrOvflCnt);
400DEVICE_COUNTER(rx_p1_hdr_egr_ovfls, RxP1HdrEgrOvflCnt);
401DEVICE_COUNTER(rx_p2_hdr_egr_ovfls, RxP2HdrEgrOvflCnt);
402DEVICE_COUNTER(rx_p3_hdr_egr_ovfls, RxP3HdrEgrOvflCnt);
403DEVICE_COUNTER(rx_p4_hdr_egr_ovfls, RxP4HdrEgrOvflCnt);
404DEVICE_COUNTER(rx_p5_hdr_egr_ovfls, RxP5HdrEgrOvflCnt);
405DEVICE_COUNTER(rx_p6_hdr_egr_ovfls, RxP6HdrEgrOvflCnt);
406DEVICE_COUNTER(rx_p7_hdr_egr_ovfls, RxP7HdrEgrOvflCnt);
407DEVICE_COUNTER(rx_p8_hdr_egr_ovfls, RxP8HdrEgrOvflCnt);
408DEVICE_COUNTER(rx_pkey_mismatches, RxPKeyMismatchCnt);
409DEVICE_COUNTER(rx_tid_full_errs, RxTIDFullErrCnt);
410DEVICE_COUNTER(rx_tid_valid_errs, RxTIDValidErrCnt);
411DEVICE_COUNTER(rx_vcrc_errs, RxVCRCErrCnt);
412DEVICE_COUNTER(tx_data_pkts, TxDataPktCnt);
413DEVICE_COUNTER(tx_dropped_pkts, TxDroppedPktCnt);
414DEVICE_COUNTER(tx_dwords, TxDwordCnt);
415DEVICE_COUNTER(tx_flow_pkts, TxFlowPktCnt);
416DEVICE_COUNTER(tx_flow_stalls, TxFlowStallCnt);
417DEVICE_COUNTER(tx_len_errs, TxLenErrCnt);
418DEVICE_COUNTER(tx_max_min_len_errs, TxMaxMinLenErrCnt);
419DEVICE_COUNTER(tx_underruns, TxUnderrunCnt);
420DEVICE_COUNTER(tx_unsup_vl_errs, TxUnsupVLErrCnt);
421
422static struct attribute *dev_counter_attributes[] = {
423 &dev_attr_ib_link_downeds.attr,
424 &dev_attr_ib_link_err_recoveries.attr,
425 &dev_attr_ib_status_changes.attr,
426 &dev_attr_ib_symbol_errs.attr,
427 &dev_attr_lb_flow_stalls.attr,
428 &dev_attr_lb_ints.attr,
429 &dev_attr_rx_bad_formats.attr,
430 &dev_attr_rx_buf_ovfls.attr,
431 &dev_attr_rx_data_pkts.attr,
432 &dev_attr_rx_dropped_pkts.attr,
433 &dev_attr_rx_dwords.attr,
434 &dev_attr_rx_ebps.attr,
435 &dev_attr_rx_flow_ctrl_errs.attr,
436 &dev_attr_rx_flow_pkts.attr,
437 &dev_attr_rx_icrc_errs.attr,
438 &dev_attr_rx_len_errs.attr,
439 &dev_attr_rx_link_problems.attr,
440 &dev_attr_rx_lpcrc_errs.attr,
441 &dev_attr_rx_max_min_len_errs.attr,
442 &dev_attr_rx_p0_hdr_egr_ovfls.attr,
443 &dev_attr_rx_p1_hdr_egr_ovfls.attr,
444 &dev_attr_rx_p2_hdr_egr_ovfls.attr,
445 &dev_attr_rx_p3_hdr_egr_ovfls.attr,
446 &dev_attr_rx_p4_hdr_egr_ovfls.attr,
447 &dev_attr_rx_p5_hdr_egr_ovfls.attr,
448 &dev_attr_rx_p6_hdr_egr_ovfls.attr,
449 &dev_attr_rx_p7_hdr_egr_ovfls.attr,
450 &dev_attr_rx_p8_hdr_egr_ovfls.attr,
451 &dev_attr_rx_pkey_mismatches.attr,
452 &dev_attr_rx_tid_full_errs.attr,
453 &dev_attr_rx_tid_valid_errs.attr,
454 &dev_attr_rx_vcrc_errs.attr,
455 &dev_attr_tx_data_pkts.attr,
456 &dev_attr_tx_dropped_pkts.attr,
457 &dev_attr_tx_dwords.attr,
458 &dev_attr_tx_flow_pkts.attr,
459 &dev_attr_tx_flow_stalls.attr,
460 &dev_attr_tx_len_errs.attr,
461 &dev_attr_tx_max_min_len_errs.attr,
462 &dev_attr_tx_underruns.attr,
463 &dev_attr_tx_unsup_vl_errs.attr,
464 NULL
465};
466
467static struct attribute_group dev_counter_attr_group = {
468 .name = "counters",
469 .attrs = dev_counter_attributes
470};
471
472static ssize_t store_reset(struct device *dev,
473 struct device_attribute *attr,
474 const char *buf,
475 size_t count)
476{
477 struct ipath_devdata *dd = dev_get_drvdata(dev);
478 int ret;
479
480 if (count < 5 || memcmp(buf, "reset", 5)) {
481 ret = -EINVAL;
482 goto bail;
483 }
484
485 if (dd->ipath_flags & IPATH_DISABLED) {
486 /*
487 * post-reset init would re-enable interrupts, etc.
488 * so don't allow reset on disabled devices. Not
489 * perfect error, but about the best choice.
490 */
491 dev_info(dev,"Unit %d is disabled, can't reset\n",
492 dd->ipath_unit);
493 ret = -EINVAL;
494 }
495 ret = ipath_reset_device(dd->ipath_unit);
496bail:
497 return ret<0 ? ret : count;
498}
499
500static ssize_t store_link_state(struct device *dev,
501 struct device_attribute *attr,
502 const char *buf,
503 size_t count)
504{
505 struct ipath_devdata *dd = dev_get_drvdata(dev);
506 int ret, r;
507 u16 state;
508
509 ret = ipath_parse_ushort(buf, &state);
510 if (ret < 0)
511 goto invalid;
512
34b2aafe 513 r = ipath_set_linkstate(dd, state);
3e9b4a5e
BS		 514 if (r < 0) {
515 ret = r;
516 goto bail;
517 }
518
519 goto bail;
520invalid:
521 ipath_dev_err(dd, "attempt to set invalid link state\n");
522bail:
523 return ret;
524}
525
526static ssize_t show_mtu(struct device *dev,
527 struct device_attribute *attr,
528 char *buf)
529{
530 struct ipath_devdata *dd = dev_get_drvdata(dev);
531 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_ibmtu);
532}
533
534static ssize_t store_mtu(struct device *dev,
535 struct device_attribute *attr,
536 const char *buf,
537 size_t count)
538{
539 struct ipath_devdata *dd = dev_get_drvdata(dev);
540 ssize_t ret;
541 u16 mtu = 0;
542 int r;
543
544 ret = ipath_parse_ushort(buf, &mtu);
545 if (ret < 0)
546 goto invalid;
547
34b2aafe 548 r = ipath_set_mtu(dd, mtu);
3e9b4a5e
BS		 549 if (r < 0)
550 ret = r;
551
552 goto bail;
553invalid:
554 ipath_dev_err(dd, "attempt to set invalid MTU\n");
555bail:
556 return ret;
557}
558
559static ssize_t show_enabled(struct device *dev,
560 struct device_attribute *attr,
561 char *buf)
562{
563 struct ipath_devdata *dd = dev_get_drvdata(dev);
564 return scnprintf(buf, PAGE_SIZE, "%u\n",
565 (dd->ipath_flags & IPATH_DISABLED) ? 0 : 1);
566}
567
568static ssize_t store_enabled(struct device *dev,
569 struct device_attribute *attr,
570 const char *buf,
571 size_t count)
572{
573 struct ipath_devdata *dd = dev_get_drvdata(dev);
574 ssize_t ret;
575 u16 enable = 0;
576
577 ret = ipath_parse_ushort(buf, &enable);
578 if (ret < 0) {
579 ipath_dev_err(dd, "attempt to use non-numeric on enable\n");
580 goto bail;
581 }
582
583 if (enable) {
584 if (!(dd->ipath_flags & IPATH_DISABLED))
585 goto bail;
586
587 dev_info(dev, "Enabling unit %d\n", dd->ipath_unit);
588 /* same as post-reset */
589 ret = ipath_init_chip(dd, 1);
590 if (ret)
591 ipath_dev_err(dd, "Failed to enable unit %d\n",
592 dd->ipath_unit);
593 else {
594 dd->ipath_flags &= ~IPATH_DISABLED;
595 *dd->ipath_statusp &= ~IPATH_STATUS_ADMIN_DISABLED;
596 }
597 }
598 else if (!(dd->ipath_flags & IPATH_DISABLED)) {
599 dev_info(dev, "Disabling unit %d\n", dd->ipath_unit);
600 ipath_shutdown_device(dd);
601 dd->ipath_flags |= IPATH_DISABLED;
602 *dd->ipath_statusp |= IPATH_STATUS_ADMIN_DISABLED;
603 }
604
605bail:
606 return ret;
607}
608
30fc5c31
BS		 609static ssize_t store_rx_pol_inv(struct device *dev,
610 struct device_attribute *attr,
611 const char *buf,
612 size_t count)
613{
614 struct ipath_devdata *dd = dev_get_drvdata(dev);
615 int ret, r;
616 u16 val;
617
618 ret = ipath_parse_ushort(buf, &val);
619 if (ret < 0)
620 goto invalid;
621
622 r = ipath_set_rx_pol_inv(dd, val);
623 if (r < 0) {
624 ret = r;
625 goto bail;
626 }
627
628 goto bail;
629invalid:
630 ipath_dev_err(dd, "attempt to set invalid Rx Polarity invert\n");
631bail:
632 return ret;
633}
634
82466f00
MA		 635static ssize_t store_led_override(struct device *dev,
636 struct device_attribute *attr,
637 const char *buf,
638 size_t count)
639{
640 struct ipath_devdata *dd = dev_get_drvdata(dev);
641 int ret;
642 u16 val;
643
644 ret = ipath_parse_ushort(buf, &val);
645 if (ret > 0)
646 ipath_set_led_override(dd, val);
647 else
648 ipath_dev_err(dd, "attempt to set invalid LED override\n");
649 return ret;
650}
651
aecd3b5a
MA		 652static ssize_t show_logged_errs(struct device *dev,
653 struct device_attribute *attr,
654 char *buf)
655{
656 struct ipath_devdata *dd = dev_get_drvdata(dev);
657 int idx, count;
658
659 /* force consistency with actual EEPROM */
660 if (ipath_update_eeprom_log(dd) != 0)
661 return -ENXIO;
662
663 count = 0;
664 for (idx = 0; idx < IPATH_EEP_LOG_CNT; ++idx) {
665 count += scnprintf(buf + count, PAGE_SIZE - count, "%d%c",
666 dd->ipath_eep_st_errs[idx],
667 idx == (IPATH_EEP_LOG_CNT - 1) ? '\n' : ' ');
668 }
669
670 return count;
671}
30fc5c31 672
3e9b4a5e
BS		 673static DRIVER_ATTR(num_units, S_IRUGO, show_num_units, NULL);
674static DRIVER_ATTR(version, S_IRUGO, show_version, NULL);
675
676static struct attribute *driver_attributes[] = {
677 &driver_attr_num_units.attr,
678 &driver_attr_version.attr,
679 NULL
680};
681
682static struct attribute_group driver_attr_group = {
683 .attrs = driver_attributes
684};
685
23b9c1ab
GKH		 686struct attribute_group *ipath_driver_attr_groups[] = {
687 &driver_attr_group,
688 NULL,
689};
690
3e9b4a5e 691static DEVICE_ATTR(guid, S_IWUSR | S_IRUGO, show_guid, store_guid);
15cba26f 692static DEVICE_ATTR(lmc, S_IWUSR | S_IRUGO, show_lmc, store_lmc);
3e9b4a5e
BS		 693static DEVICE_ATTR(lid, S_IWUSR | S_IRUGO, show_lid, store_lid);
694static DEVICE_ATTR(link_state, S_IWUSR, NULL, store_link_state);
695static DEVICE_ATTR(mlid, S_IWUSR | S_IRUGO, show_mlid, store_mlid);
696static DEVICE_ATTR(mtu, S_IWUSR | S_IRUGO, show_mtu, store_mtu);
697static DEVICE_ATTR(enabled, S_IWUSR | S_IRUGO, show_enabled, store_enabled);
698static DEVICE_ATTR(nguid, S_IRUGO, show_nguid, NULL);
9929b0fb 699static DEVICE_ATTR(nports, S_IRUGO, show_nports, NULL);
3e9b4a5e
BS		 700static DEVICE_ATTR(reset, S_IWUSR, NULL, store_reset);
701static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
702static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
703static DEVICE_ATTR(status_str, S_IRUGO, show_status_str, NULL);
704static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL);
705static DEVICE_ATTR(unit, S_IRUGO, show_unit, NULL);
30fc5c31 706static DEVICE_ATTR(rx_pol_inv, S_IWUSR, NULL, store_rx_pol_inv);
82466f00 707static DEVICE_ATTR(led_override, S_IWUSR, NULL, store_led_override);
aecd3b5a 708static DEVICE_ATTR(logged_errors, S_IRUGO, show_logged_errs, NULL);
3e9b4a5e
BS		 709
710static struct attribute *dev_attributes[] = {
711 &dev_attr_guid.attr,
15cba26f 712 &dev_attr_lmc.attr,
3e9b4a5e
BS		 713 &dev_attr_lid.attr,
714 &dev_attr_link_state.attr,
715 &dev_attr_mlid.attr,
716 &dev_attr_mtu.attr,
717 &dev_attr_nguid.attr,
9929b0fb 718 &dev_attr_nports.attr,
3e9b4a5e
BS		 719 &dev_attr_serial.attr,
720 &dev_attr_status.attr,
721 &dev_attr_status_str.attr,
722 &dev_attr_boardversion.attr,
723 &dev_attr_unit.attr,
724 &dev_attr_enabled.attr,
30fc5c31 725 &dev_attr_rx_pol_inv.attr,
82466f00 726 &dev_attr_led_override.attr,
aecd3b5a 727 &dev_attr_logged_errors.attr,
3e9b4a5e
BS		 728 NULL
729};
730
731static struct attribute_group dev_attr_group = {
732 .attrs = dev_attributes
733};
734
735/**
736 * ipath_expose_reset - create a device reset file
737 * @dev: the device structure
738 *
739 * Only expose a file that lets us reset the device after someone
740 * enters diag mode. A device reset is quite likely to crash the
741 * machine entirely, so we don't want to normally make it
742 * available.
755e4ca4
BS		 743 *
744 * Called with ipath_mutex held.
3e9b4a5e
BS		 745 */
746int ipath_expose_reset(struct device *dev)
747{
755e4ca4
BS		 748 static int exposed;
749 int ret;
750
751 if (!exposed) {
752 ret = device_create_file(dev, &dev_attr_reset);
753 exposed = 1;
754 }
755 else
756 ret = 0;
757
758 return ret;
3e9b4a5e
BS		 759}
760
3e9b4a5e
BS		 761int ipath_device_create_group(struct device *dev, struct ipath_devdata *dd)
762{
763 int ret;
3e9b4a5e
BS		 764
765 ret = sysfs_create_group(&dev->kobj, &dev_attr_group);
766 if (ret)
767 goto bail;
768
769 ret = sysfs_create_group(&dev->kobj, &dev_counter_attr_group);
770 if (ret)
771 goto bail_attrs;
772
657c2f2c
RD		 773 return 0;
774
3e9b4a5e
BS		 775bail_attrs:
776 sysfs_remove_group(&dev->kobj, &dev_attr_group);
777bail:
778 return ret;
779}
780
781void ipath_device_remove_group(struct device *dev, struct ipath_devdata *dd)
782{
3e9b4a5e
BS		 783 sysfs_remove_group(&dev->kobj, &dev_counter_attr_group);
784 sysfs_remove_group(&dev->kobj, &dev_attr_group);
785
786 device_remove_file(dev, &dev_attr_reset);
787}
Linux kernel - Deliverables
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