IB/ipath: Update copyright dates
[linux-3.10.git] / drivers / infiniband / hw / ipath / ipath_sysfs.c
1 /*
2  * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved.
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>
35
36 #include "ipath_kernel.h"
37 #include "ipath_common.h"
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  */
46 int 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
70 bail:
71         return ret;
72 }
73
74 static ssize_t show_version(struct device_driver *dev, char *buf)
75 {
76         /* The string printed here is already newline-terminated. */
77         return scnprintf(buf, PAGE_SIZE, "%s", ib_ipath_version);
78 }
79
80 static 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
86 static 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
101 bail:
102         return ret;
103 }
104
105 static const char *ipath_status_str[] = {
106         "Initted",
107         "Disabled",
108         "Admin_Disabled",
109         "", /* This used to be the old "OIB_SMA" status. */
110         "", /* This used to be the old "SMA" status. */
111         "Present",
112         "IB_link_up",
113         "IB_configured",
114         "NoIBcable",
115         "Fatal_Hardware_Error",
116         NULL,
117 };
118
119 static 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
153 bail:
154         return ret;
155 }
156
157 static 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
166 static ssize_t show_lid(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, "0x%x\n", dd->ipath_lid);
173 }
174
175 static ssize_t store_lid(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 lid = 0;
182         int ret;
183
184         ret = ipath_parse_ushort(buf, &lid);
185         if (ret < 0)
186                 goto invalid;
187
188         if (lid == 0 || lid >= IPATH_MULTICAST_LID_BASE) {
189                 ret = -EINVAL;
190                 goto invalid;
191         }
192
193         ipath_set_lid(dd, lid, 0);
194
195         goto bail;
196 invalid:
197         ipath_dev_err(dd, "attempt to set invalid LID 0x%x\n", lid);
198 bail:
199         return ret;
200 }
201
202 static ssize_t show_mlid(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_mlid);
209 }
210
211 static ssize_t store_mlid(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);
217         u16 mlid;
218         int ret;
219
220         ret = ipath_parse_ushort(buf, &mlid);
221         if (ret < 0 || mlid < IPATH_MULTICAST_LID_BASE)
222                 goto invalid;
223
224         dd->ipath_mlid = mlid;
225
226         goto bail;
227 invalid:
228         ipath_dev_err(dd, "attempt to set invalid MLID\n");
229 bail:
230         return ret;
231 }
232
233 static ssize_t show_guid(struct device *dev,
234                          struct device_attribute *attr,
235                          char *buf)
236 {
237         struct ipath_devdata *dd = dev_get_drvdata(dev);
238         u8 *guid;
239
240         guid = (u8 *) & (dd->ipath_guid);
241
242         return scnprintf(buf, PAGE_SIZE,
243                          "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
244                          guid[0], guid[1], guid[2], guid[3],
245                          guid[4], guid[5], guid[6], guid[7]);
246 }
247
248 static ssize_t store_guid(struct device *dev,
249                          struct device_attribute *attr,
250                           const char *buf,
251                           size_t count)
252 {
253         struct ipath_devdata *dd = dev_get_drvdata(dev);
254         ssize_t ret;
255         unsigned short guid[8];
256         __be64 new_guid;
257         u8 *ng;
258         int i;
259
260         if (sscanf(buf, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx",
261                    &guid[0], &guid[1], &guid[2], &guid[3],
262                    &guid[4], &guid[5], &guid[6], &guid[7]) != 8)
263                 goto invalid;
264
265         ng = (u8 *) &new_guid;
266
267         for (i = 0; i < 8; i++) {
268                 if (guid[i] > 0xff)
269                         goto invalid;
270                 ng[i] = guid[i];
271         }
272
273         if (new_guid == 0)
274                 goto invalid;
275
276         dd->ipath_guid = new_guid;
277         dd->ipath_nguid = 1;
278
279         ret = strlen(buf);
280         goto bail;
281
282 invalid:
283         ipath_dev_err(dd, "attempt to set invalid GUID\n");
284         ret = -EINVAL;
285
286 bail:
287         return ret;
288 }
289
290 static ssize_t show_nguid(struct device *dev,
291                           struct device_attribute *attr,
292                           char *buf)
293 {
294         struct ipath_devdata *dd = dev_get_drvdata(dev);
295
296         return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_nguid);
297 }
298
299 static ssize_t show_nports(struct device *dev,
300                            struct device_attribute *attr,
301                            char *buf)
302 {
303         struct ipath_devdata *dd = dev_get_drvdata(dev);
304
305         /* Return the number of user ports available. */
306         return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_cfgports - 1);
307 }
308
309 static ssize_t show_serial(struct device *dev,
310                            struct device_attribute *attr,
311                            char *buf)
312 {
313         struct ipath_devdata *dd = dev_get_drvdata(dev);
314
315         buf[sizeof dd->ipath_serial] = '\0';
316         memcpy(buf, dd->ipath_serial, sizeof dd->ipath_serial);
317         strcat(buf, "\n");
318         return strlen(buf);
319 }
320
321 static ssize_t show_unit(struct device *dev,
322                          struct device_attribute *attr,
323                          char *buf)
324 {
325         struct ipath_devdata *dd = dev_get_drvdata(dev);
326
327         return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_unit);
328 }
329
330 #define DEVICE_COUNTER(name, attr) \
331         static ssize_t show_counter_##name(struct device *dev, \
332                                            struct device_attribute *attr, \
333                                            char *buf) \
334         { \
335                 struct ipath_devdata *dd = dev_get_drvdata(dev); \
336                 return scnprintf(\
337                         buf, PAGE_SIZE, "%llu\n", (unsigned long long) \
338                         ipath_snap_cntr( \
339                                 dd, offsetof(struct infinipath_counters, \
340                                              attr) / sizeof(u64)));     \
341         } \
342         static DEVICE_ATTR(name, S_IRUGO, show_counter_##name, NULL);
343
344 DEVICE_COUNTER(ib_link_downeds, IBLinkDownedCnt);
345 DEVICE_COUNTER(ib_link_err_recoveries, IBLinkErrRecoveryCnt);
346 DEVICE_COUNTER(ib_status_changes, IBStatusChangeCnt);
347 DEVICE_COUNTER(ib_symbol_errs, IBSymbolErrCnt);
348 DEVICE_COUNTER(lb_flow_stalls, LBFlowStallCnt);
349 DEVICE_COUNTER(lb_ints, LBIntCnt);
350 DEVICE_COUNTER(rx_bad_formats, RxBadFormatCnt);
351 DEVICE_COUNTER(rx_buf_ovfls, RxBufOvflCnt);
352 DEVICE_COUNTER(rx_data_pkts, RxDataPktCnt);
353 DEVICE_COUNTER(rx_dropped_pkts, RxDroppedPktCnt);
354 DEVICE_COUNTER(rx_dwords, RxDwordCnt);
355 DEVICE_COUNTER(rx_ebps, RxEBPCnt);
356 DEVICE_COUNTER(rx_flow_ctrl_errs, RxFlowCtrlErrCnt);
357 DEVICE_COUNTER(rx_flow_pkts, RxFlowPktCnt);
358 DEVICE_COUNTER(rx_icrc_errs, RxICRCErrCnt);
359 DEVICE_COUNTER(rx_len_errs, RxLenErrCnt);
360 DEVICE_COUNTER(rx_link_problems, RxLinkProblemCnt);
361 DEVICE_COUNTER(rx_lpcrc_errs, RxLPCRCErrCnt);
362 DEVICE_COUNTER(rx_max_min_len_errs, RxMaxMinLenErrCnt);
363 DEVICE_COUNTER(rx_p0_hdr_egr_ovfls, RxP0HdrEgrOvflCnt);
364 DEVICE_COUNTER(rx_p1_hdr_egr_ovfls, RxP1HdrEgrOvflCnt);
365 DEVICE_COUNTER(rx_p2_hdr_egr_ovfls, RxP2HdrEgrOvflCnt);
366 DEVICE_COUNTER(rx_p3_hdr_egr_ovfls, RxP3HdrEgrOvflCnt);
367 DEVICE_COUNTER(rx_p4_hdr_egr_ovfls, RxP4HdrEgrOvflCnt);
368 DEVICE_COUNTER(rx_p5_hdr_egr_ovfls, RxP5HdrEgrOvflCnt);
369 DEVICE_COUNTER(rx_p6_hdr_egr_ovfls, RxP6HdrEgrOvflCnt);
370 DEVICE_COUNTER(rx_p7_hdr_egr_ovfls, RxP7HdrEgrOvflCnt);
371 DEVICE_COUNTER(rx_p8_hdr_egr_ovfls, RxP8HdrEgrOvflCnt);
372 DEVICE_COUNTER(rx_pkey_mismatches, RxPKeyMismatchCnt);
373 DEVICE_COUNTER(rx_tid_full_errs, RxTIDFullErrCnt);
374 DEVICE_COUNTER(rx_tid_valid_errs, RxTIDValidErrCnt);
375 DEVICE_COUNTER(rx_vcrc_errs, RxVCRCErrCnt);
376 DEVICE_COUNTER(tx_data_pkts, TxDataPktCnt);
377 DEVICE_COUNTER(tx_dropped_pkts, TxDroppedPktCnt);
378 DEVICE_COUNTER(tx_dwords, TxDwordCnt);
379 DEVICE_COUNTER(tx_flow_pkts, TxFlowPktCnt);
380 DEVICE_COUNTER(tx_flow_stalls, TxFlowStallCnt);
381 DEVICE_COUNTER(tx_len_errs, TxLenErrCnt);
382 DEVICE_COUNTER(tx_max_min_len_errs, TxMaxMinLenErrCnt);
383 DEVICE_COUNTER(tx_underruns, TxUnderrunCnt);
384 DEVICE_COUNTER(tx_unsup_vl_errs, TxUnsupVLErrCnt);
385
386 static struct attribute *dev_counter_attributes[] = {
387         &dev_attr_ib_link_downeds.attr,
388         &dev_attr_ib_link_err_recoveries.attr,
389         &dev_attr_ib_status_changes.attr,
390         &dev_attr_ib_symbol_errs.attr,
391         &dev_attr_lb_flow_stalls.attr,
392         &dev_attr_lb_ints.attr,
393         &dev_attr_rx_bad_formats.attr,
394         &dev_attr_rx_buf_ovfls.attr,
395         &dev_attr_rx_data_pkts.attr,
396         &dev_attr_rx_dropped_pkts.attr,
397         &dev_attr_rx_dwords.attr,
398         &dev_attr_rx_ebps.attr,
399         &dev_attr_rx_flow_ctrl_errs.attr,
400         &dev_attr_rx_flow_pkts.attr,
401         &dev_attr_rx_icrc_errs.attr,
402         &dev_attr_rx_len_errs.attr,
403         &dev_attr_rx_link_problems.attr,
404         &dev_attr_rx_lpcrc_errs.attr,
405         &dev_attr_rx_max_min_len_errs.attr,
406         &dev_attr_rx_p0_hdr_egr_ovfls.attr,
407         &dev_attr_rx_p1_hdr_egr_ovfls.attr,
408         &dev_attr_rx_p2_hdr_egr_ovfls.attr,
409         &dev_attr_rx_p3_hdr_egr_ovfls.attr,
410         &dev_attr_rx_p4_hdr_egr_ovfls.attr,
411         &dev_attr_rx_p5_hdr_egr_ovfls.attr,
412         &dev_attr_rx_p6_hdr_egr_ovfls.attr,
413         &dev_attr_rx_p7_hdr_egr_ovfls.attr,
414         &dev_attr_rx_p8_hdr_egr_ovfls.attr,
415         &dev_attr_rx_pkey_mismatches.attr,
416         &dev_attr_rx_tid_full_errs.attr,
417         &dev_attr_rx_tid_valid_errs.attr,
418         &dev_attr_rx_vcrc_errs.attr,
419         &dev_attr_tx_data_pkts.attr,
420         &dev_attr_tx_dropped_pkts.attr,
421         &dev_attr_tx_dwords.attr,
422         &dev_attr_tx_flow_pkts.attr,
423         &dev_attr_tx_flow_stalls.attr,
424         &dev_attr_tx_len_errs.attr,
425         &dev_attr_tx_max_min_len_errs.attr,
426         &dev_attr_tx_underruns.attr,
427         &dev_attr_tx_unsup_vl_errs.attr,
428         NULL
429 };
430
431 static struct attribute_group dev_counter_attr_group = {
432         .name = "counters",
433         .attrs = dev_counter_attributes
434 };
435
436 static ssize_t store_reset(struct device *dev,
437                          struct device_attribute *attr,
438                           const char *buf,
439                           size_t count)
440 {
441         struct ipath_devdata *dd = dev_get_drvdata(dev);
442         int ret;
443
444         if (count < 5 || memcmp(buf, "reset", 5)) {
445                 ret = -EINVAL;
446                 goto bail;
447         }
448
449         if (dd->ipath_flags & IPATH_DISABLED) {
450                 /*
451                  * post-reset init would re-enable interrupts, etc.
452                  * so don't allow reset on disabled devices.  Not
453                  * perfect error, but about the best choice.
454                  */
455                 dev_info(dev,"Unit %d is disabled, can't reset\n",
456                          dd->ipath_unit);
457                 ret = -EINVAL;
458         }
459         ret = ipath_reset_device(dd->ipath_unit);
460 bail:
461         return ret<0 ? ret : count;
462 }
463
464 static ssize_t store_link_state(struct device *dev,
465                          struct device_attribute *attr,
466                           const char *buf,
467                           size_t count)
468 {
469         struct ipath_devdata *dd = dev_get_drvdata(dev);
470         int ret, r;
471         u16 state;
472
473         ret = ipath_parse_ushort(buf, &state);
474         if (ret < 0)
475                 goto invalid;
476
477         r = ipath_set_linkstate(dd, state);
478         if (r < 0) {
479                 ret = r;
480                 goto bail;
481         }
482
483         goto bail;
484 invalid:
485         ipath_dev_err(dd, "attempt to set invalid link state\n");
486 bail:
487         return ret;
488 }
489
490 static ssize_t show_mtu(struct device *dev,
491                          struct device_attribute *attr,
492                          char *buf)
493 {
494         struct ipath_devdata *dd = dev_get_drvdata(dev);
495         return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_ibmtu);
496 }
497
498 static ssize_t store_mtu(struct device *dev,
499                          struct device_attribute *attr,
500                           const char *buf,
501                           size_t count)
502 {
503         struct ipath_devdata *dd = dev_get_drvdata(dev);
504         ssize_t ret;
505         u16 mtu = 0;
506         int r;
507
508         ret = ipath_parse_ushort(buf, &mtu);
509         if (ret < 0)
510                 goto invalid;
511
512         r = ipath_set_mtu(dd, mtu);
513         if (r < 0)
514                 ret = r;
515
516         goto bail;
517 invalid:
518         ipath_dev_err(dd, "attempt to set invalid MTU\n");
519 bail:
520         return ret;
521 }
522
523 static ssize_t show_enabled(struct device *dev,
524                          struct device_attribute *attr,
525                          char *buf)
526 {
527         struct ipath_devdata *dd = dev_get_drvdata(dev);
528         return scnprintf(buf, PAGE_SIZE, "%u\n",
529                          (dd->ipath_flags & IPATH_DISABLED) ? 0 : 1);
530 }
531
532 static ssize_t store_enabled(struct device *dev,
533                          struct device_attribute *attr,
534                           const char *buf,
535                           size_t count)
536 {
537         struct ipath_devdata *dd = dev_get_drvdata(dev);
538         ssize_t ret;
539         u16 enable = 0;
540
541         ret = ipath_parse_ushort(buf, &enable);
542         if (ret < 0) {
543                 ipath_dev_err(dd, "attempt to use non-numeric on enable\n");
544                 goto bail;
545         }
546
547         if (enable) {
548                 if (!(dd->ipath_flags & IPATH_DISABLED))
549                         goto bail;
550
551                 dev_info(dev, "Enabling unit %d\n", dd->ipath_unit);
552                 /* same as post-reset */
553                 ret = ipath_init_chip(dd, 1);
554                 if (ret)
555                         ipath_dev_err(dd, "Failed to enable unit %d\n",
556                                       dd->ipath_unit);
557                 else {
558                         dd->ipath_flags &= ~IPATH_DISABLED;
559                         *dd->ipath_statusp &= ~IPATH_STATUS_ADMIN_DISABLED;
560                 }
561         }
562         else if (!(dd->ipath_flags & IPATH_DISABLED)) {
563                 dev_info(dev, "Disabling unit %d\n", dd->ipath_unit);
564                 ipath_shutdown_device(dd);
565                 dd->ipath_flags |= IPATH_DISABLED;
566                 *dd->ipath_statusp |= IPATH_STATUS_ADMIN_DISABLED;
567         }
568
569 bail:
570         return ret;
571 }
572
573 static ssize_t store_rx_pol_inv(struct device *dev,
574                           struct device_attribute *attr,
575                           const char *buf,
576                           size_t count)
577 {
578         struct ipath_devdata *dd = dev_get_drvdata(dev);
579         int ret, r;
580         u16 val;
581
582         ret = ipath_parse_ushort(buf, &val);
583         if (ret < 0)
584                 goto invalid;
585
586         r = ipath_set_rx_pol_inv(dd, val);
587         if (r < 0) {
588                 ret = r;
589                 goto bail;
590         }
591
592         goto bail;
593 invalid:
594         ipath_dev_err(dd, "attempt to set invalid Rx Polarity invert\n");
595 bail:
596         return ret;
597 }
598
599 static ssize_t store_led_override(struct device *dev,
600                           struct device_attribute *attr,
601                           const char *buf,
602                           size_t count)
603 {
604         struct ipath_devdata *dd = dev_get_drvdata(dev);
605         int ret;
606         u16 val;
607
608         ret = ipath_parse_ushort(buf, &val);
609         if (ret > 0)
610                 ipath_set_led_override(dd, val);
611         else
612                 ipath_dev_err(dd, "attempt to set invalid LED override\n");
613         return ret;
614 }
615
616 static ssize_t show_logged_errs(struct device *dev,
617                                 struct device_attribute *attr,
618                                 char *buf)
619 {
620         struct ipath_devdata *dd = dev_get_drvdata(dev);
621         int idx, count;
622
623         /* force consistency with actual EEPROM */
624         if (ipath_update_eeprom_log(dd) != 0)
625                 return -ENXIO;
626
627         count = 0;
628         for (idx = 0; idx < IPATH_EEP_LOG_CNT; ++idx) {
629                 count += scnprintf(buf + count, PAGE_SIZE - count, "%d%c",
630                         dd->ipath_eep_st_errs[idx],
631                         idx == (IPATH_EEP_LOG_CNT - 1) ? '\n' : ' ');
632         }
633
634         return count;
635 }
636
637 static DRIVER_ATTR(num_units, S_IRUGO, show_num_units, NULL);
638 static DRIVER_ATTR(version, S_IRUGO, show_version, NULL);
639
640 static struct attribute *driver_attributes[] = {
641         &driver_attr_num_units.attr,
642         &driver_attr_version.attr,
643         NULL
644 };
645
646 static struct attribute_group driver_attr_group = {
647         .attrs = driver_attributes
648 };
649
650 static DEVICE_ATTR(guid, S_IWUSR | S_IRUGO, show_guid, store_guid);
651 static DEVICE_ATTR(lid, S_IWUSR | S_IRUGO, show_lid, store_lid);
652 static DEVICE_ATTR(link_state, S_IWUSR, NULL, store_link_state);
653 static DEVICE_ATTR(mlid, S_IWUSR | S_IRUGO, show_mlid, store_mlid);
654 static DEVICE_ATTR(mtu, S_IWUSR | S_IRUGO, show_mtu, store_mtu);
655 static DEVICE_ATTR(enabled, S_IWUSR | S_IRUGO, show_enabled, store_enabled);
656 static DEVICE_ATTR(nguid, S_IRUGO, show_nguid, NULL);
657 static DEVICE_ATTR(nports, S_IRUGO, show_nports, NULL);
658 static DEVICE_ATTR(reset, S_IWUSR, NULL, store_reset);
659 static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
660 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
661 static DEVICE_ATTR(status_str, S_IRUGO, show_status_str, NULL);
662 static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL);
663 static DEVICE_ATTR(unit, S_IRUGO, show_unit, NULL);
664 static DEVICE_ATTR(rx_pol_inv, S_IWUSR, NULL, store_rx_pol_inv);
665 static DEVICE_ATTR(led_override, S_IWUSR, NULL, store_led_override);
666 static DEVICE_ATTR(logged_errors, S_IRUGO, show_logged_errs, NULL);
667
668 static struct attribute *dev_attributes[] = {
669         &dev_attr_guid.attr,
670         &dev_attr_lid.attr,
671         &dev_attr_link_state.attr,
672         &dev_attr_mlid.attr,
673         &dev_attr_mtu.attr,
674         &dev_attr_nguid.attr,
675         &dev_attr_nports.attr,
676         &dev_attr_serial.attr,
677         &dev_attr_status.attr,
678         &dev_attr_status_str.attr,
679         &dev_attr_boardversion.attr,
680         &dev_attr_unit.attr,
681         &dev_attr_enabled.attr,
682         &dev_attr_rx_pol_inv.attr,
683         &dev_attr_led_override.attr,
684         &dev_attr_logged_errors.attr,
685         NULL
686 };
687
688 static struct attribute_group dev_attr_group = {
689         .attrs = dev_attributes
690 };
691
692 /**
693  * ipath_expose_reset - create a device reset file
694  * @dev: the device structure
695  *
696  * Only expose a file that lets us reset the device after someone
697  * enters diag mode.  A device reset is quite likely to crash the
698  * machine entirely, so we don't want to normally make it
699  * available.
700  *
701  * Called with ipath_mutex held.
702  */
703 int ipath_expose_reset(struct device *dev)
704 {
705         static int exposed;
706         int ret;
707
708         if (!exposed) {
709                 ret = device_create_file(dev, &dev_attr_reset);
710                 exposed = 1;
711         }
712         else
713                 ret = 0;
714
715         return ret;
716 }
717
718 int ipath_driver_create_group(struct device_driver *drv)
719 {
720         int ret;
721
722         ret = sysfs_create_group(&drv->kobj, &driver_attr_group);
723
724         return ret;
725 }
726
727 void ipath_driver_remove_group(struct device_driver *drv)
728 {
729         sysfs_remove_group(&drv->kobj, &driver_attr_group);
730 }
731
732 int ipath_device_create_group(struct device *dev, struct ipath_devdata *dd)
733 {
734         int ret;
735         char unit[5];
736
737         ret = sysfs_create_group(&dev->kobj, &dev_attr_group);
738         if (ret)
739                 goto bail;
740
741         ret = sysfs_create_group(&dev->kobj, &dev_counter_attr_group);
742         if (ret)
743                 goto bail_attrs;
744
745         snprintf(unit, sizeof(unit), "%02d", dd->ipath_unit);
746         ret = sysfs_create_link(&dev->driver->kobj, &dev->kobj, unit);
747         if (ret == 0)
748                 goto bail;
749
750         sysfs_remove_group(&dev->kobj, &dev_counter_attr_group);
751 bail_attrs:
752         sysfs_remove_group(&dev->kobj, &dev_attr_group);
753 bail:
754         return ret;
755 }
756
757 void ipath_device_remove_group(struct device *dev, struct ipath_devdata *dd)
758 {
759         char unit[5];
760
761         snprintf(unit, sizeof(unit), "%02d", dd->ipath_unit);
762         sysfs_remove_link(&dev->driver->kobj, unit);
763
764         sysfs_remove_group(&dev->kobj, &dev_counter_attr_group);
765         sysfs_remove_group(&dev->kobj, &dev_attr_group);
766
767         device_remove_file(dev, &dev_attr_reset);
768 }