Loading...
Note: File does not exist in v6.8.
1/*
2 * Copyright (c) 2006, 2007, 2008 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_verbs.h"
38#include "ipath_common.h"
39
40/**
41 * ipath_parse_ushort - parse an unsigned short value in an arbitrary base
42 * @str: the string containing the number
43 * @valp: where to put the result
44 *
45 * returns the number of bytes consumed, or negative value on error
46 */
47int ipath_parse_ushort(const char *str, unsigned short *valp)
48{
49 unsigned long val;
50 char *end;
51 int ret;
52
53 if (!isdigit(str[0])) {
54 ret = -EINVAL;
55 goto bail;
56 }
57
58 val = simple_strtoul(str, &end, 0);
59
60 if (val > 0xffff) {
61 ret = -EINVAL;
62 goto bail;
63 }
64
65 *valp = val;
66
67 ret = end + 1 - str;
68 if (ret == 0)
69 ret = -EINVAL;
70
71bail:
72 return ret;
73}
74
75static ssize_t show_version(struct device_driver *dev, char *buf)
76{
77 /* The string printed here is already newline-terminated. */
78 return scnprintf(buf, PAGE_SIZE, "%s", ib_ipath_version);
79}
80
81static ssize_t show_num_units(struct device_driver *dev, char *buf)
82{
83 return scnprintf(buf, PAGE_SIZE, "%d\n",
84 ipath_count_units(NULL, NULL, NULL));
85}
86
87static ssize_t show_status(struct device *dev,
88 struct device_attribute *attr,
89 char *buf)
90{
91 struct ipath_devdata *dd = dev_get_drvdata(dev);
92 ssize_t ret;
93
94 if (!dd->ipath_statusp) {
95 ret = -EINVAL;
96 goto bail;
97 }
98
99 ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n",
100 (unsigned long long) *(dd->ipath_statusp));
101
102bail:
103 return ret;
104}
105
106static const char *ipath_status_str[] = {
107 "Initted",
108 "Disabled",
109 "Admin_Disabled",
110 "", /* This used to be the old "OIB_SMA" status. */
111 "", /* This used to be the old "SMA" status. */
112 "Present",
113 "IB_link_up",
114 "IB_configured",
115 "NoIBcable",
116 "Fatal_Hardware_Error",
117 NULL,
118};
119
120static ssize_t show_status_str(struct device *dev,
121 struct device_attribute *attr,
122 char *buf)
123{
124 struct ipath_devdata *dd = dev_get_drvdata(dev);
125 int i, any;
126 u64 s;
127 ssize_t ret;
128
129 if (!dd->ipath_statusp) {
130 ret = -EINVAL;
131 goto bail;
132 }
133
134 s = *(dd->ipath_statusp);
135 *buf = '\0';
136 for (any = i = 0; s && ipath_status_str[i]; i++) {
137 if (s & 1) {
138 if (any && strlcat(buf, " ", PAGE_SIZE) >=
139 PAGE_SIZE)
140 /* overflow */
141 break;
142 if (strlcat(buf, ipath_status_str[i],
143 PAGE_SIZE) >= PAGE_SIZE)
144 break;
145 any = 1;
146 }
147 s >>= 1;
148 }
149 if (any)
150 strlcat(buf, "\n", PAGE_SIZE);
151
152 ret = strlen(buf);
153
154bail:
155 return ret;
156}
157
158static ssize_t show_boardversion(struct device *dev,
159 struct device_attribute *attr,
160 char *buf)
161{
162 struct ipath_devdata *dd = dev_get_drvdata(dev);
163 /* The string printed here is already newline-terminated. */
164 return scnprintf(buf, PAGE_SIZE, "%s", dd->ipath_boardversion);
165}
166
167static ssize_t show_localbus_info(struct device *dev,
168 struct device_attribute *attr,
169 char *buf)
170{
171 struct ipath_devdata *dd = dev_get_drvdata(dev);
172 /* The string printed here is already newline-terminated. */
173 return scnprintf(buf, PAGE_SIZE, "%s", dd->ipath_lbus_info);
174}
175
176static ssize_t show_lmc(struct device *dev,
177 struct device_attribute *attr,
178 char *buf)
179{
180 struct ipath_devdata *dd = dev_get_drvdata(dev);
181
182 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_lmc);
183}
184
185static ssize_t store_lmc(struct device *dev,
186 struct device_attribute *attr,
187 const char *buf,
188 size_t count)
189{
190 struct ipath_devdata *dd = dev_get_drvdata(dev);
191 u16 lmc = 0;
192 int ret;
193
194 ret = ipath_parse_ushort(buf, &lmc);
195 if (ret < 0)
196 goto invalid;
197
198 if (lmc > 7) {
199 ret = -EINVAL;
200 goto invalid;
201 }
202
203 ipath_set_lid(dd, dd->ipath_lid, lmc);
204
205 goto bail;
206invalid:
207 ipath_dev_err(dd, "attempt to set invalid LMC %u\n", lmc);
208bail:
209 return ret;
210}
211
212static ssize_t show_lid(struct device *dev,
213 struct device_attribute *attr,
214 char *buf)
215{
216 struct ipath_devdata *dd = dev_get_drvdata(dev);
217
218 return scnprintf(buf, PAGE_SIZE, "0x%x\n", dd->ipath_lid);
219}
220
221static ssize_t store_lid(struct device *dev,
222 struct device_attribute *attr,
223 const char *buf,
224 size_t count)
225{
226 struct ipath_devdata *dd = dev_get_drvdata(dev);
227 u16 lid = 0;
228 int ret;
229
230 ret = ipath_parse_ushort(buf, &lid);
231 if (ret < 0)
232 goto invalid;
233
234 if (lid == 0 || lid >= IPATH_MULTICAST_LID_BASE) {
235 ret = -EINVAL;
236 goto invalid;
237 }
238
239 ipath_set_lid(dd, lid, dd->ipath_lmc);
240
241 goto bail;
242invalid:
243 ipath_dev_err(dd, "attempt to set invalid LID 0x%x\n", lid);
244bail:
245 return ret;
246}
247
248static ssize_t show_mlid(struct device *dev,
249 struct device_attribute *attr,
250 char *buf)
251{
252 struct ipath_devdata *dd = dev_get_drvdata(dev);
253
254 return scnprintf(buf, PAGE_SIZE, "0x%x\n", dd->ipath_mlid);
255}
256
257static ssize_t store_mlid(struct device *dev,
258 struct device_attribute *attr,
259 const char *buf,
260 size_t count)
261{
262 struct ipath_devdata *dd = dev_get_drvdata(dev);
263 u16 mlid;
264 int ret;
265
266 ret = ipath_parse_ushort(buf, &mlid);
267 if (ret < 0 || mlid < IPATH_MULTICAST_LID_BASE)
268 goto invalid;
269
270 dd->ipath_mlid = mlid;
271
272 goto bail;
273invalid:
274 ipath_dev_err(dd, "attempt to set invalid MLID\n");
275bail:
276 return ret;
277}
278
279static ssize_t show_guid(struct device *dev,
280 struct device_attribute *attr,
281 char *buf)
282{
283 struct ipath_devdata *dd = dev_get_drvdata(dev);
284 u8 *guid;
285
286 guid = (u8 *) & (dd->ipath_guid);
287
288 return scnprintf(buf, PAGE_SIZE,
289 "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
290 guid[0], guid[1], guid[2], guid[3],
291 guid[4], guid[5], guid[6], guid[7]);
292}
293
294static ssize_t store_guid(struct device *dev,
295 struct device_attribute *attr,
296 const char *buf,
297 size_t count)
298{
299 struct ipath_devdata *dd = dev_get_drvdata(dev);
300 ssize_t ret;
301 unsigned short guid[8];
302 __be64 new_guid;
303 u8 *ng;
304 int i;
305
306 if (sscanf(buf, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx",
307 &guid[0], &guid[1], &guid[2], &guid[3],
308 &guid[4], &guid[5], &guid[6], &guid[7]) != 8)
309 goto invalid;
310
311 ng = (u8 *) &new_guid;
312
313 for (i = 0; i < 8; i++) {
314 if (guid[i] > 0xff)
315 goto invalid;
316 ng[i] = guid[i];
317 }
318
319 if (new_guid == 0)
320 goto invalid;
321
322 dd->ipath_guid = new_guid;
323 dd->ipath_nguid = 1;
324 if (dd->verbs_dev)
325 dd->verbs_dev->ibdev.node_guid = new_guid;
326
327 ret = strlen(buf);
328 goto bail;
329
330invalid:
331 ipath_dev_err(dd, "attempt to set invalid GUID\n");
332 ret = -EINVAL;
333
334bail:
335 return ret;
336}
337
338static ssize_t show_nguid(struct device *dev,
339 struct device_attribute *attr,
340 char *buf)
341{
342 struct ipath_devdata *dd = dev_get_drvdata(dev);
343
344 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_nguid);
345}
346
347static ssize_t show_nports(struct device *dev,
348 struct device_attribute *attr,
349 char *buf)
350{
351 struct ipath_devdata *dd = dev_get_drvdata(dev);
352
353 /* Return the number of user ports available. */
354 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_cfgports - 1);
355}
356
357static ssize_t show_serial(struct device *dev,
358 struct device_attribute *attr,
359 char *buf)
360{
361 struct ipath_devdata *dd = dev_get_drvdata(dev);
362
363 buf[sizeof dd->ipath_serial] = '\0';
364 memcpy(buf, dd->ipath_serial, sizeof dd->ipath_serial);
365 strcat(buf, "\n");
366 return strlen(buf);
367}
368
369static ssize_t show_unit(struct device *dev,
370 struct device_attribute *attr,
371 char *buf)
372{
373 struct ipath_devdata *dd = dev_get_drvdata(dev);
374
375 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_unit);
376}
377
378static ssize_t show_jint_max_packets(struct device *dev,
379 struct device_attribute *attr,
380 char *buf)
381{
382 struct ipath_devdata *dd = dev_get_drvdata(dev);
383
384 return scnprintf(buf, PAGE_SIZE, "%hu\n", dd->ipath_jint_max_packets);
385}
386
387static ssize_t store_jint_max_packets(struct device *dev,
388 struct device_attribute *attr,
389 const char *buf,
390 size_t count)
391{
392 struct ipath_devdata *dd = dev_get_drvdata(dev);
393 u16 v = 0;
394 int ret;
395
396 ret = ipath_parse_ushort(buf, &v);
397 if (ret < 0)
398 ipath_dev_err(dd, "invalid jint_max_packets.\n");
399 else
400 dd->ipath_f_config_jint(dd, dd->ipath_jint_idle_ticks, v);
401
402 return ret;
403}
404
405static ssize_t show_jint_idle_ticks(struct device *dev,
406 struct device_attribute *attr,
407 char *buf)
408{
409 struct ipath_devdata *dd = dev_get_drvdata(dev);
410
411 return scnprintf(buf, PAGE_SIZE, "%hu\n", dd->ipath_jint_idle_ticks);
412}
413
414static ssize_t store_jint_idle_ticks(struct device *dev,
415 struct device_attribute *attr,
416 const char *buf,
417 size_t count)
418{
419 struct ipath_devdata *dd = dev_get_drvdata(dev);
420 u16 v = 0;
421 int ret;
422
423 ret = ipath_parse_ushort(buf, &v);
424 if (ret < 0)
425 ipath_dev_err(dd, "invalid jint_idle_ticks.\n");
426 else
427 dd->ipath_f_config_jint(dd, v, dd->ipath_jint_max_packets);
428
429 return ret;
430}
431
432#define DEVICE_COUNTER(name, attr) \
433 static ssize_t show_counter_##name(struct device *dev, \
434 struct device_attribute *attr, \
435 char *buf) \
436 { \
437 struct ipath_devdata *dd = dev_get_drvdata(dev); \
438 return scnprintf(\
439 buf, PAGE_SIZE, "%llu\n", (unsigned long long) \
440 ipath_snap_cntr( \
441 dd, offsetof(struct infinipath_counters, \
442 attr) / sizeof(u64))); \
443 } \
444 static DEVICE_ATTR(name, S_IRUGO, show_counter_##name, NULL);
445
446DEVICE_COUNTER(ib_link_downeds, IBLinkDownedCnt);
447DEVICE_COUNTER(ib_link_err_recoveries, IBLinkErrRecoveryCnt);
448DEVICE_COUNTER(ib_status_changes, IBStatusChangeCnt);
449DEVICE_COUNTER(ib_symbol_errs, IBSymbolErrCnt);
450DEVICE_COUNTER(lb_flow_stalls, LBFlowStallCnt);
451DEVICE_COUNTER(lb_ints, LBIntCnt);
452DEVICE_COUNTER(rx_bad_formats, RxBadFormatCnt);
453DEVICE_COUNTER(rx_buf_ovfls, RxBufOvflCnt);
454DEVICE_COUNTER(rx_data_pkts, RxDataPktCnt);
455DEVICE_COUNTER(rx_dropped_pkts, RxDroppedPktCnt);
456DEVICE_COUNTER(rx_dwords, RxDwordCnt);
457DEVICE_COUNTER(rx_ebps, RxEBPCnt);
458DEVICE_COUNTER(rx_flow_ctrl_errs, RxFlowCtrlErrCnt);
459DEVICE_COUNTER(rx_flow_pkts, RxFlowPktCnt);
460DEVICE_COUNTER(rx_icrc_errs, RxICRCErrCnt);
461DEVICE_COUNTER(rx_len_errs, RxLenErrCnt);
462DEVICE_COUNTER(rx_link_problems, RxLinkProblemCnt);
463DEVICE_COUNTER(rx_lpcrc_errs, RxLPCRCErrCnt);
464DEVICE_COUNTER(rx_max_min_len_errs, RxMaxMinLenErrCnt);
465DEVICE_COUNTER(rx_p0_hdr_egr_ovfls, RxP0HdrEgrOvflCnt);
466DEVICE_COUNTER(rx_p1_hdr_egr_ovfls, RxP1HdrEgrOvflCnt);
467DEVICE_COUNTER(rx_p2_hdr_egr_ovfls, RxP2HdrEgrOvflCnt);
468DEVICE_COUNTER(rx_p3_hdr_egr_ovfls, RxP3HdrEgrOvflCnt);
469DEVICE_COUNTER(rx_p4_hdr_egr_ovfls, RxP4HdrEgrOvflCnt);
470DEVICE_COUNTER(rx_p5_hdr_egr_ovfls, RxP5HdrEgrOvflCnt);
471DEVICE_COUNTER(rx_p6_hdr_egr_ovfls, RxP6HdrEgrOvflCnt);
472DEVICE_COUNTER(rx_p7_hdr_egr_ovfls, RxP7HdrEgrOvflCnt);
473DEVICE_COUNTER(rx_p8_hdr_egr_ovfls, RxP8HdrEgrOvflCnt);
474DEVICE_COUNTER(rx_pkey_mismatches, RxPKeyMismatchCnt);
475DEVICE_COUNTER(rx_tid_full_errs, RxTIDFullErrCnt);
476DEVICE_COUNTER(rx_tid_valid_errs, RxTIDValidErrCnt);
477DEVICE_COUNTER(rx_vcrc_errs, RxVCRCErrCnt);
478DEVICE_COUNTER(tx_data_pkts, TxDataPktCnt);
479DEVICE_COUNTER(tx_dropped_pkts, TxDroppedPktCnt);
480DEVICE_COUNTER(tx_dwords, TxDwordCnt);
481DEVICE_COUNTER(tx_flow_pkts, TxFlowPktCnt);
482DEVICE_COUNTER(tx_flow_stalls, TxFlowStallCnt);
483DEVICE_COUNTER(tx_len_errs, TxLenErrCnt);
484DEVICE_COUNTER(tx_max_min_len_errs, TxMaxMinLenErrCnt);
485DEVICE_COUNTER(tx_underruns, TxUnderrunCnt);
486DEVICE_COUNTER(tx_unsup_vl_errs, TxUnsupVLErrCnt);
487
488static struct attribute *dev_counter_attributes[] = {
489 &dev_attr_ib_link_downeds.attr,
490 &dev_attr_ib_link_err_recoveries.attr,
491 &dev_attr_ib_status_changes.attr,
492 &dev_attr_ib_symbol_errs.attr,
493 &dev_attr_lb_flow_stalls.attr,
494 &dev_attr_lb_ints.attr,
495 &dev_attr_rx_bad_formats.attr,
496 &dev_attr_rx_buf_ovfls.attr,
497 &dev_attr_rx_data_pkts.attr,
498 &dev_attr_rx_dropped_pkts.attr,
499 &dev_attr_rx_dwords.attr,
500 &dev_attr_rx_ebps.attr,
501 &dev_attr_rx_flow_ctrl_errs.attr,
502 &dev_attr_rx_flow_pkts.attr,
503 &dev_attr_rx_icrc_errs.attr,
504 &dev_attr_rx_len_errs.attr,
505 &dev_attr_rx_link_problems.attr,
506 &dev_attr_rx_lpcrc_errs.attr,
507 &dev_attr_rx_max_min_len_errs.attr,
508 &dev_attr_rx_p0_hdr_egr_ovfls.attr,
509 &dev_attr_rx_p1_hdr_egr_ovfls.attr,
510 &dev_attr_rx_p2_hdr_egr_ovfls.attr,
511 &dev_attr_rx_p3_hdr_egr_ovfls.attr,
512 &dev_attr_rx_p4_hdr_egr_ovfls.attr,
513 &dev_attr_rx_p5_hdr_egr_ovfls.attr,
514 &dev_attr_rx_p6_hdr_egr_ovfls.attr,
515 &dev_attr_rx_p7_hdr_egr_ovfls.attr,
516 &dev_attr_rx_p8_hdr_egr_ovfls.attr,
517 &dev_attr_rx_pkey_mismatches.attr,
518 &dev_attr_rx_tid_full_errs.attr,
519 &dev_attr_rx_tid_valid_errs.attr,
520 &dev_attr_rx_vcrc_errs.attr,
521 &dev_attr_tx_data_pkts.attr,
522 &dev_attr_tx_dropped_pkts.attr,
523 &dev_attr_tx_dwords.attr,
524 &dev_attr_tx_flow_pkts.attr,
525 &dev_attr_tx_flow_stalls.attr,
526 &dev_attr_tx_len_errs.attr,
527 &dev_attr_tx_max_min_len_errs.attr,
528 &dev_attr_tx_underruns.attr,
529 &dev_attr_tx_unsup_vl_errs.attr,
530 NULL
531};
532
533static struct attribute_group dev_counter_attr_group = {
534 .name = "counters",
535 .attrs = dev_counter_attributes
536};
537
538static ssize_t store_reset(struct device *dev,
539 struct device_attribute *attr,
540 const char *buf,
541 size_t count)
542{
543 struct ipath_devdata *dd = dev_get_drvdata(dev);
544 int ret;
545
546 if (count < 5 || memcmp(buf, "reset", 5)) {
547 ret = -EINVAL;
548 goto bail;
549 }
550
551 if (dd->ipath_flags & IPATH_DISABLED) {
552 /*
553 * post-reset init would re-enable interrupts, etc.
554 * so don't allow reset on disabled devices. Not
555 * perfect error, but about the best choice.
556 */
557 dev_info(dev,"Unit %d is disabled, can't reset\n",
558 dd->ipath_unit);
559 ret = -EINVAL;
560 goto bail;
561 }
562 ret = ipath_reset_device(dd->ipath_unit);
563bail:
564 return ret<0 ? ret : count;
565}
566
567static ssize_t store_link_state(struct device *dev,
568 struct device_attribute *attr,
569 const char *buf,
570 size_t count)
571{
572 struct ipath_devdata *dd = dev_get_drvdata(dev);
573 int ret, r;
574 u16 state;
575
576 ret = ipath_parse_ushort(buf, &state);
577 if (ret < 0)
578 goto invalid;
579
580 r = ipath_set_linkstate(dd, state);
581 if (r < 0) {
582 ret = r;
583 goto bail;
584 }
585
586 goto bail;
587invalid:
588 ipath_dev_err(dd, "attempt to set invalid link state\n");
589bail:
590 return ret;
591}
592
593static ssize_t show_mtu(struct device *dev,
594 struct device_attribute *attr,
595 char *buf)
596{
597 struct ipath_devdata *dd = dev_get_drvdata(dev);
598 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_ibmtu);
599}
600
601static ssize_t store_mtu(struct device *dev,
602 struct device_attribute *attr,
603 const char *buf,
604 size_t count)
605{
606 struct ipath_devdata *dd = dev_get_drvdata(dev);
607 ssize_t ret;
608 u16 mtu = 0;
609 int r;
610
611 ret = ipath_parse_ushort(buf, &mtu);
612 if (ret < 0)
613 goto invalid;
614
615 r = ipath_set_mtu(dd, mtu);
616 if (r < 0)
617 ret = r;
618
619 goto bail;
620invalid:
621 ipath_dev_err(dd, "attempt to set invalid MTU\n");
622bail:
623 return ret;
624}
625
626static ssize_t show_enabled(struct device *dev,
627 struct device_attribute *attr,
628 char *buf)
629{
630 struct ipath_devdata *dd = dev_get_drvdata(dev);
631 return scnprintf(buf, PAGE_SIZE, "%u\n",
632 (dd->ipath_flags & IPATH_DISABLED) ? 0 : 1);
633}
634
635static ssize_t store_enabled(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 ssize_t ret;
642 u16 enable = 0;
643
644 ret = ipath_parse_ushort(buf, &enable);
645 if (ret < 0) {
646 ipath_dev_err(dd, "attempt to use non-numeric on enable\n");
647 goto bail;
648 }
649
650 if (enable) {
651 if (!(dd->ipath_flags & IPATH_DISABLED))
652 goto bail;
653
654 dev_info(dev, "Enabling unit %d\n", dd->ipath_unit);
655 /* same as post-reset */
656 ret = ipath_init_chip(dd, 1);
657 if (ret)
658 ipath_dev_err(dd, "Failed to enable unit %d\n",
659 dd->ipath_unit);
660 else {
661 dd->ipath_flags &= ~IPATH_DISABLED;
662 *dd->ipath_statusp &= ~IPATH_STATUS_ADMIN_DISABLED;
663 }
664 }
665 else if (!(dd->ipath_flags & IPATH_DISABLED)) {
666 dev_info(dev, "Disabling unit %d\n", dd->ipath_unit);
667 ipath_shutdown_device(dd);
668 dd->ipath_flags |= IPATH_DISABLED;
669 *dd->ipath_statusp |= IPATH_STATUS_ADMIN_DISABLED;
670 }
671
672bail:
673 return ret;
674}
675
676static ssize_t store_rx_pol_inv(struct device *dev,
677 struct device_attribute *attr,
678 const char *buf,
679 size_t count)
680{
681 struct ipath_devdata *dd = dev_get_drvdata(dev);
682 int ret, r;
683 u16 val;
684
685 ret = ipath_parse_ushort(buf, &val);
686 if (ret < 0)
687 goto invalid;
688
689 r = ipath_set_rx_pol_inv(dd, val);
690 if (r < 0) {
691 ret = r;
692 goto bail;
693 }
694
695 goto bail;
696invalid:
697 ipath_dev_err(dd, "attempt to set invalid Rx Polarity invert\n");
698bail:
699 return ret;
700}
701
702static ssize_t store_led_override(struct device *dev,
703 struct device_attribute *attr,
704 const char *buf,
705 size_t count)
706{
707 struct ipath_devdata *dd = dev_get_drvdata(dev);
708 int ret;
709 u16 val;
710
711 ret = ipath_parse_ushort(buf, &val);
712 if (ret > 0)
713 ipath_set_led_override(dd, val);
714 else
715 ipath_dev_err(dd, "attempt to set invalid LED override\n");
716 return ret;
717}
718
719static ssize_t show_logged_errs(struct device *dev,
720 struct device_attribute *attr,
721 char *buf)
722{
723 struct ipath_devdata *dd = dev_get_drvdata(dev);
724 int idx, count;
725
726 /* force consistency with actual EEPROM */
727 if (ipath_update_eeprom_log(dd) != 0)
728 return -ENXIO;
729
730 count = 0;
731 for (idx = 0; idx < IPATH_EEP_LOG_CNT; ++idx) {
732 count += scnprintf(buf + count, PAGE_SIZE - count, "%d%c",
733 dd->ipath_eep_st_errs[idx],
734 idx == (IPATH_EEP_LOG_CNT - 1) ? '\n' : ' ');
735 }
736
737 return count;
738}
739
740/*
741 * New sysfs entries to control various IB config. These all turn into
742 * accesses via ipath_f_get/set_ib_cfg.
743 *
744 * Get/Set heartbeat enable. Or of 1=enabled, 2=auto
745 */
746static ssize_t show_hrtbt_enb(struct device *dev,
747 struct device_attribute *attr,
748 char *buf)
749{
750 struct ipath_devdata *dd = dev_get_drvdata(dev);
751 int ret;
752
753 ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_HRTBT);
754 if (ret >= 0)
755 ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
756 return ret;
757}
758
759static ssize_t store_hrtbt_enb(struct device *dev,
760 struct device_attribute *attr,
761 const char *buf,
762 size_t count)
763{
764 struct ipath_devdata *dd = dev_get_drvdata(dev);
765 int ret, r;
766 u16 val;
767
768 ret = ipath_parse_ushort(buf, &val);
769 if (ret >= 0 && val > 3)
770 ret = -EINVAL;
771 if (ret < 0) {
772 ipath_dev_err(dd, "attempt to set invalid Heartbeat enable\n");
773 goto bail;
774 }
775
776 /*
777 * Set the "intentional" heartbeat enable per either of
778 * "Enable" and "Auto", as these are normally set together.
779 * This bit is consulted when leaving loopback mode,
780 * because entering loopback mode overrides it and automatically
781 * disables heartbeat.
782 */
783 r = dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_HRTBT, val);
784 if (r < 0)
785 ret = r;
786 else if (val == IPATH_IB_HRTBT_OFF)
787 dd->ipath_flags |= IPATH_NO_HRTBT;
788 else
789 dd->ipath_flags &= ~IPATH_NO_HRTBT;
790
791bail:
792 return ret;
793}
794
795/*
796 * Get/Set Link-widths enabled. Or of 1=1x, 2=4x (this is human/IB centric,
797 * _not_ the particular encoding of any given chip)
798 */
799static ssize_t show_lwid_enb(struct device *dev,
800 struct device_attribute *attr,
801 char *buf)
802{
803 struct ipath_devdata *dd = dev_get_drvdata(dev);
804 int ret;
805
806 ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_LWID_ENB);
807 if (ret >= 0)
808 ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
809 return ret;
810}
811
812static ssize_t store_lwid_enb(struct device *dev,
813 struct device_attribute *attr,
814 const char *buf,
815 size_t count)
816{
817 struct ipath_devdata *dd = dev_get_drvdata(dev);
818 int ret, r;
819 u16 val;
820
821 ret = ipath_parse_ushort(buf, &val);
822 if (ret >= 0 && (val == 0 || val > 3))
823 ret = -EINVAL;
824 if (ret < 0) {
825 ipath_dev_err(dd,
826 "attempt to set invalid Link Width (enable)\n");
827 goto bail;
828 }
829
830 r = dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_LWID_ENB, val);
831 if (r < 0)
832 ret = r;
833
834bail:
835 return ret;
836}
837
838/* Get current link width */
839static ssize_t show_lwid(struct device *dev,
840 struct device_attribute *attr,
841 char *buf)
842
843{
844 struct ipath_devdata *dd = dev_get_drvdata(dev);
845 int ret;
846
847 ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_LWID);
848 if (ret >= 0)
849 ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
850 return ret;
851}
852
853/*
854 * Get/Set Link-speeds enabled. Or of 1=SDR 2=DDR.
855 */
856static ssize_t show_spd_enb(struct device *dev,
857 struct device_attribute *attr,
858 char *buf)
859{
860 struct ipath_devdata *dd = dev_get_drvdata(dev);
861 int ret;
862
863 ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_SPD_ENB);
864 if (ret >= 0)
865 ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
866 return ret;
867}
868
869static ssize_t store_spd_enb(struct device *dev,
870 struct device_attribute *attr,
871 const char *buf,
872 size_t count)
873{
874 struct ipath_devdata *dd = dev_get_drvdata(dev);
875 int ret, r;
876 u16 val;
877
878 ret = ipath_parse_ushort(buf, &val);
879 if (ret >= 0 && (val == 0 || val > (IPATH_IB_SDR | IPATH_IB_DDR)))
880 ret = -EINVAL;
881 if (ret < 0) {
882 ipath_dev_err(dd,
883 "attempt to set invalid Link Speed (enable)\n");
884 goto bail;
885 }
886
887 r = dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_SPD_ENB, val);
888 if (r < 0)
889 ret = r;
890
891bail:
892 return ret;
893}
894
895/* Get current link speed */
896static ssize_t show_spd(struct device *dev,
897 struct device_attribute *attr,
898 char *buf)
899{
900 struct ipath_devdata *dd = dev_get_drvdata(dev);
901 int ret;
902
903 ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_SPD);
904 if (ret >= 0)
905 ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
906 return ret;
907}
908
909/*
910 * Get/Set RX polarity-invert enable. 0=no, 1=yes.
911 */
912static ssize_t show_rx_polinv_enb(struct device *dev,
913 struct device_attribute *attr,
914 char *buf)
915{
916 struct ipath_devdata *dd = dev_get_drvdata(dev);
917 int ret;
918
919 ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_RXPOL_ENB);
920 if (ret >= 0)
921 ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
922 return ret;
923}
924
925static ssize_t store_rx_polinv_enb(struct device *dev,
926 struct device_attribute *attr,
927 const char *buf,
928 size_t count)
929{
930 struct ipath_devdata *dd = dev_get_drvdata(dev);
931 int ret, r;
932 u16 val;
933
934 ret = ipath_parse_ushort(buf, &val);
935 if (ret >= 0 && val > 1) {
936 ipath_dev_err(dd,
937 "attempt to set invalid Rx Polarity (enable)\n");
938 ret = -EINVAL;
939 goto bail;
940 }
941
942 r = dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_RXPOL_ENB, val);
943 if (r < 0)
944 ret = r;
945
946bail:
947 return ret;
948}
949
950/*
951 * Get/Set RX lane-reversal enable. 0=no, 1=yes.
952 */
953static ssize_t show_lanerev_enb(struct device *dev,
954 struct device_attribute *attr,
955 char *buf)
956{
957 struct ipath_devdata *dd = dev_get_drvdata(dev);
958 int ret;
959
960 ret = dd->ipath_f_get_ib_cfg(dd, IPATH_IB_CFG_LREV_ENB);
961 if (ret >= 0)
962 ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
963 return ret;
964}
965
966static ssize_t store_lanerev_enb(struct device *dev,
967 struct device_attribute *attr,
968 const char *buf,
969 size_t count)
970{
971 struct ipath_devdata *dd = dev_get_drvdata(dev);
972 int ret, r;
973 u16 val;
974
975 ret = ipath_parse_ushort(buf, &val);
976 if (ret >= 0 && val > 1) {
977 ret = -EINVAL;
978 ipath_dev_err(dd,
979 "attempt to set invalid Lane reversal (enable)\n");
980 goto bail;
981 }
982
983 r = dd->ipath_f_set_ib_cfg(dd, IPATH_IB_CFG_LREV_ENB, val);
984 if (r < 0)
985 ret = r;
986
987bail:
988 return ret;
989}
990
991static DRIVER_ATTR(num_units, S_IRUGO, show_num_units, NULL);
992static DRIVER_ATTR(version, S_IRUGO, show_version, NULL);
993
994static struct attribute *driver_attributes[] = {
995 &driver_attr_num_units.attr,
996 &driver_attr_version.attr,
997 NULL
998};
999
1000static struct attribute_group driver_attr_group = {
1001 .attrs = driver_attributes
1002};
1003
1004static ssize_t store_tempsense(struct device *dev,
1005 struct device_attribute *attr,
1006 const char *buf,
1007 size_t count)
1008{
1009 struct ipath_devdata *dd = dev_get_drvdata(dev);
1010 int ret, stat;
1011 u16 val;
1012
1013 ret = ipath_parse_ushort(buf, &val);
1014 if (ret <= 0) {
1015 ipath_dev_err(dd, "attempt to set invalid tempsense config\n");
1016 goto bail;
1017 }
1018 /* If anything but the highest limit, enable T_CRIT_A "interrupt" */
1019 stat = ipath_tempsense_write(dd, 9, (val == 0x7f7f) ? 0x80 : 0);
1020 if (stat) {
1021 ipath_dev_err(dd, "Unable to set tempsense config\n");
1022 ret = -1;
1023 goto bail;
1024 }
1025 stat = ipath_tempsense_write(dd, 0xB, (u8) (val & 0xFF));
1026 if (stat) {
1027 ipath_dev_err(dd, "Unable to set local Tcrit\n");
1028 ret = -1;
1029 goto bail;
1030 }
1031 stat = ipath_tempsense_write(dd, 0xD, (u8) (val >> 8));
1032 if (stat) {
1033 ipath_dev_err(dd, "Unable to set remote Tcrit\n");
1034 ret = -1;
1035 goto bail;
1036 }
1037
1038bail:
1039 return ret;
1040}
1041
1042/*
1043 * dump tempsense regs. in decimal, to ease shell-scripts.
1044 */
1045static ssize_t show_tempsense(struct device *dev,
1046 struct device_attribute *attr,
1047 char *buf)
1048{
1049 struct ipath_devdata *dd = dev_get_drvdata(dev);
1050 int ret;
1051 int idx;
1052 u8 regvals[8];
1053
1054 ret = -ENXIO;
1055 for (idx = 0; idx < 8; ++idx) {
1056 if (idx == 6)
1057 continue;
1058 ret = ipath_tempsense_read(dd, idx);
1059 if (ret < 0)
1060 break;
1061 regvals[idx] = ret;
1062 }
1063 if (idx == 8)
1064 ret = scnprintf(buf, PAGE_SIZE, "%d %d %02X %02X %d %d\n",
1065 *(signed char *)(regvals),
1066 *(signed char *)(regvals + 1),
1067 regvals[2], regvals[3],
1068 *(signed char *)(regvals + 5),
1069 *(signed char *)(regvals + 7));
1070 return ret;
1071}
1072
1073const struct attribute_group *ipath_driver_attr_groups[] = {
1074 &driver_attr_group,
1075 NULL,
1076};
1077
1078static DEVICE_ATTR(guid, S_IWUSR | S_IRUGO, show_guid, store_guid);
1079static DEVICE_ATTR(lmc, S_IWUSR | S_IRUGO, show_lmc, store_lmc);
1080static DEVICE_ATTR(lid, S_IWUSR | S_IRUGO, show_lid, store_lid);
1081static DEVICE_ATTR(link_state, S_IWUSR, NULL, store_link_state);
1082static DEVICE_ATTR(mlid, S_IWUSR | S_IRUGO, show_mlid, store_mlid);
1083static DEVICE_ATTR(mtu, S_IWUSR | S_IRUGO, show_mtu, store_mtu);
1084static DEVICE_ATTR(enabled, S_IWUSR | S_IRUGO, show_enabled, store_enabled);
1085static DEVICE_ATTR(nguid, S_IRUGO, show_nguid, NULL);
1086static DEVICE_ATTR(nports, S_IRUGO, show_nports, NULL);
1087static DEVICE_ATTR(reset, S_IWUSR, NULL, store_reset);
1088static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
1089static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
1090static DEVICE_ATTR(status_str, S_IRUGO, show_status_str, NULL);
1091static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL);
1092static DEVICE_ATTR(unit, S_IRUGO, show_unit, NULL);
1093static DEVICE_ATTR(rx_pol_inv, S_IWUSR, NULL, store_rx_pol_inv);
1094static DEVICE_ATTR(led_override, S_IWUSR, NULL, store_led_override);
1095static DEVICE_ATTR(logged_errors, S_IRUGO, show_logged_errs, NULL);
1096static DEVICE_ATTR(localbus_info, S_IRUGO, show_localbus_info, NULL);
1097static DEVICE_ATTR(jint_max_packets, S_IWUSR | S_IRUGO,
1098 show_jint_max_packets, store_jint_max_packets);
1099static DEVICE_ATTR(jint_idle_ticks, S_IWUSR | S_IRUGO,
1100 show_jint_idle_ticks, store_jint_idle_ticks);
1101static DEVICE_ATTR(tempsense, S_IWUSR | S_IRUGO,
1102 show_tempsense, store_tempsense);
1103
1104static struct attribute *dev_attributes[] = {
1105 &dev_attr_guid.attr,
1106 &dev_attr_lmc.attr,
1107 &dev_attr_lid.attr,
1108 &dev_attr_link_state.attr,
1109 &dev_attr_mlid.attr,
1110 &dev_attr_mtu.attr,
1111 &dev_attr_nguid.attr,
1112 &dev_attr_nports.attr,
1113 &dev_attr_serial.attr,
1114 &dev_attr_status.attr,
1115 &dev_attr_status_str.attr,
1116 &dev_attr_boardversion.attr,
1117 &dev_attr_unit.attr,
1118 &dev_attr_enabled.attr,
1119 &dev_attr_rx_pol_inv.attr,
1120 &dev_attr_led_override.attr,
1121 &dev_attr_logged_errors.attr,
1122 &dev_attr_tempsense.attr,
1123 &dev_attr_localbus_info.attr,
1124 NULL
1125};
1126
1127static struct attribute_group dev_attr_group = {
1128 .attrs = dev_attributes
1129};
1130
1131static DEVICE_ATTR(hrtbt_enable, S_IWUSR | S_IRUGO, show_hrtbt_enb,
1132 store_hrtbt_enb);
1133static DEVICE_ATTR(link_width_enable, S_IWUSR | S_IRUGO, show_lwid_enb,
1134 store_lwid_enb);
1135static DEVICE_ATTR(link_width, S_IRUGO, show_lwid, NULL);
1136static DEVICE_ATTR(link_speed_enable, S_IWUSR | S_IRUGO, show_spd_enb,
1137 store_spd_enb);
1138static DEVICE_ATTR(link_speed, S_IRUGO, show_spd, NULL);
1139static DEVICE_ATTR(rx_pol_inv_enable, S_IWUSR | S_IRUGO, show_rx_polinv_enb,
1140 store_rx_polinv_enb);
1141static DEVICE_ATTR(rx_lane_rev_enable, S_IWUSR | S_IRUGO, show_lanerev_enb,
1142 store_lanerev_enb);
1143
1144static struct attribute *dev_ibcfg_attributes[] = {
1145 &dev_attr_hrtbt_enable.attr,
1146 &dev_attr_link_width_enable.attr,
1147 &dev_attr_link_width.attr,
1148 &dev_attr_link_speed_enable.attr,
1149 &dev_attr_link_speed.attr,
1150 &dev_attr_rx_pol_inv_enable.attr,
1151 &dev_attr_rx_lane_rev_enable.attr,
1152 NULL
1153};
1154
1155static struct attribute_group dev_ibcfg_attr_group = {
1156 .attrs = dev_ibcfg_attributes
1157};
1158
1159/**
1160 * ipath_expose_reset - create a device reset file
1161 * @dev: the device structure
1162 *
1163 * Only expose a file that lets us reset the device after someone
1164 * enters diag mode. A device reset is quite likely to crash the
1165 * machine entirely, so we don't want to normally make it
1166 * available.
1167 *
1168 * Called with ipath_mutex held.
1169 */
1170int ipath_expose_reset(struct device *dev)
1171{
1172 static int exposed;
1173 int ret;
1174
1175 if (!exposed) {
1176 ret = device_create_file(dev, &dev_attr_reset);
1177 exposed = 1;
1178 }
1179 else
1180 ret = 0;
1181
1182 return ret;
1183}
1184
1185int ipath_device_create_group(struct device *dev, struct ipath_devdata *dd)
1186{
1187 int ret;
1188
1189 ret = sysfs_create_group(&dev->kobj, &dev_attr_group);
1190 if (ret)
1191 goto bail;
1192
1193 ret = sysfs_create_group(&dev->kobj, &dev_counter_attr_group);
1194 if (ret)
1195 goto bail_attrs;
1196
1197 if (dd->ipath_flags & IPATH_HAS_MULT_IB_SPEED) {
1198 ret = device_create_file(dev, &dev_attr_jint_idle_ticks);
1199 if (ret)
1200 goto bail_counter;
1201 ret = device_create_file(dev, &dev_attr_jint_max_packets);
1202 if (ret)
1203 goto bail_idle;
1204
1205 ret = sysfs_create_group(&dev->kobj, &dev_ibcfg_attr_group);
1206 if (ret)
1207 goto bail_max;
1208 }
1209
1210 return 0;
1211
1212bail_max:
1213 device_remove_file(dev, &dev_attr_jint_max_packets);
1214bail_idle:
1215 device_remove_file(dev, &dev_attr_jint_idle_ticks);
1216bail_counter:
1217 sysfs_remove_group(&dev->kobj, &dev_counter_attr_group);
1218bail_attrs:
1219 sysfs_remove_group(&dev->kobj, &dev_attr_group);
1220bail:
1221 return ret;
1222}
1223
1224void ipath_device_remove_group(struct device *dev, struct ipath_devdata *dd)
1225{
1226 sysfs_remove_group(&dev->kobj, &dev_counter_attr_group);
1227
1228 if (dd->ipath_flags & IPATH_HAS_MULT_IB_SPEED) {
1229 sysfs_remove_group(&dev->kobj, &dev_ibcfg_attr_group);
1230 device_remove_file(dev, &dev_attr_jint_idle_ticks);
1231 device_remove_file(dev, &dev_attr_jint_max_packets);
1232 }
1233
1234 sysfs_remove_group(&dev->kobj, &dev_attr_group);
1235
1236 device_remove_file(dev, &dev_attr_reset);
1237}