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f931551b | 1 | /* |
36a8f01c MM |
2 | * Copyright (c) 2012 Intel Corporation. All rights reserved. |
3 | * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. | |
f931551b RC |
4 | * Copyright (c) 2006 PathScale, Inc. All rights reserved. |
5 | * | |
6 | * This software is available to you under a choice of one of two | |
7 | * licenses. You may choose to be licensed under the terms of the GNU | |
8 | * General Public License (GPL) Version 2, available from the file | |
9 | * COPYING in the main directory of this source tree, or the | |
10 | * OpenIB.org BSD license below: | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or | |
13 | * without modification, are permitted provided that the following | |
14 | * conditions are met: | |
15 | * | |
16 | * - Redistributions of source code must retain the above | |
17 | * copyright notice, this list of conditions and the following | |
18 | * disclaimer. | |
19 | * | |
20 | * - Redistributions in binary form must reproduce the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer in the documentation and/or other materials | |
23 | * provided with the distribution. | |
24 | * | |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
32 | * SOFTWARE. | |
33 | */ | |
34 | #include <linux/ctype.h> | |
35 | ||
36 | #include "qib.h" | |
36a8f01c | 37 | #include "qib_mad.h" |
f931551b | 38 | |
f931551b RC |
39 | /* start of per-port functions */ |
40 | /* | |
41 | * Get/Set heartbeat enable. OR of 1=enabled, 2=auto | |
42 | */ | |
43 | static ssize_t show_hrtbt_enb(struct qib_pportdata *ppd, char *buf) | |
44 | { | |
45 | struct qib_devdata *dd = ppd->dd; | |
46 | int ret; | |
47 | ||
48 | ret = dd->f_get_ib_cfg(ppd, QIB_IB_CFG_HRTBT); | |
49 | ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret); | |
50 | return ret; | |
51 | } | |
52 | ||
53 | static ssize_t store_hrtbt_enb(struct qib_pportdata *ppd, const char *buf, | |
54 | size_t count) | |
55 | { | |
56 | struct qib_devdata *dd = ppd->dd; | |
57 | int ret; | |
58 | u16 val; | |
59 | ||
7fac3301 MM |
60 | ret = kstrtou16(buf, 0, &val); |
61 | if (ret) { | |
62 | qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n"); | |
63 | return ret; | |
64 | } | |
f931551b RC |
65 | |
66 | /* | |
67 | * Set the "intentional" heartbeat enable per either of | |
68 | * "Enable" and "Auto", as these are normally set together. | |
69 | * This bit is consulted when leaving loopback mode, | |
70 | * because entering loopback mode overrides it and automatically | |
71 | * disables heartbeat. | |
72 | */ | |
7fac3301 | 73 | ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val); |
f931551b RC |
74 | return ret < 0 ? ret : count; |
75 | } | |
76 | ||
77 | static ssize_t store_loopback(struct qib_pportdata *ppd, const char *buf, | |
78 | size_t count) | |
79 | { | |
80 | struct qib_devdata *dd = ppd->dd; | |
81 | int ret = count, r; | |
82 | ||
83 | r = dd->f_set_ib_loopback(ppd, buf); | |
84 | if (r < 0) | |
85 | ret = r; | |
86 | ||
87 | return ret; | |
88 | } | |
89 | ||
90 | static ssize_t store_led_override(struct qib_pportdata *ppd, const char *buf, | |
91 | size_t count) | |
92 | { | |
93 | struct qib_devdata *dd = ppd->dd; | |
94 | int ret; | |
95 | u16 val; | |
96 | ||
7fac3301 MM |
97 | ret = kstrtou16(buf, 0, &val); |
98 | if (ret) { | |
f931551b | 99 | qib_dev_err(dd, "attempt to set invalid LED override\n"); |
7fac3301 MM |
100 | return ret; |
101 | } | |
102 | ||
103 | qib_set_led_override(ppd, val); | |
104 | return count; | |
f931551b RC |
105 | } |
106 | ||
107 | static ssize_t show_status(struct qib_pportdata *ppd, char *buf) | |
108 | { | |
109 | ssize_t ret; | |
110 | ||
111 | if (!ppd->statusp) | |
112 | ret = -EINVAL; | |
113 | else | |
114 | ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n", | |
115 | (unsigned long long) *(ppd->statusp)); | |
116 | return ret; | |
117 | } | |
118 | ||
119 | /* | |
120 | * For userland compatibility, these offsets must remain fixed. | |
121 | * They are strings for QIB_STATUS_* | |
122 | */ | |
865b64be | 123 | static const char * const qib_status_str[] = { |
f931551b RC |
124 | "Initted", |
125 | "", | |
126 | "", | |
127 | "", | |
128 | "", | |
129 | "Present", | |
130 | "IB_link_up", | |
131 | "IB_configured", | |
132 | "", | |
133 | "Fatal_Hardware_Error", | |
134 | NULL, | |
135 | }; | |
136 | ||
137 | static ssize_t show_status_str(struct qib_pportdata *ppd, char *buf) | |
138 | { | |
139 | int i, any; | |
140 | u64 s; | |
141 | ssize_t ret; | |
142 | ||
143 | if (!ppd->statusp) { | |
144 | ret = -EINVAL; | |
145 | goto bail; | |
146 | } | |
147 | ||
148 | s = *(ppd->statusp); | |
149 | *buf = '\0'; | |
150 | for (any = i = 0; s && qib_status_str[i]; i++) { | |
151 | if (s & 1) { | |
152 | /* if overflow */ | |
153 | if (any && strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) | |
154 | break; | |
155 | if (strlcat(buf, qib_status_str[i], PAGE_SIZE) >= | |
156 | PAGE_SIZE) | |
157 | break; | |
158 | any = 1; | |
159 | } | |
160 | s >>= 1; | |
161 | } | |
162 | if (any) | |
163 | strlcat(buf, "\n", PAGE_SIZE); | |
164 | ||
165 | ret = strlen(buf); | |
166 | ||
167 | bail: | |
168 | return ret; | |
169 | } | |
170 | ||
171 | /* end of per-port functions */ | |
172 | ||
173 | /* | |
174 | * Start of per-port file structures and support code | |
175 | * Because we are fitting into other infrastructure, we have to supply the | |
176 | * full set of kobject/sysfs_ops structures and routines. | |
177 | */ | |
178 | #define QIB_PORT_ATTR(name, mode, show, store) \ | |
179 | static struct qib_port_attr qib_port_attr_##name = \ | |
180 | __ATTR(name, mode, show, store) | |
181 | ||
182 | struct qib_port_attr { | |
183 | struct attribute attr; | |
184 | ssize_t (*show)(struct qib_pportdata *, char *); | |
185 | ssize_t (*store)(struct qib_pportdata *, const char *, size_t); | |
186 | }; | |
187 | ||
188 | QIB_PORT_ATTR(loopback, S_IWUSR, NULL, store_loopback); | |
189 | QIB_PORT_ATTR(led_override, S_IWUSR, NULL, store_led_override); | |
190 | QIB_PORT_ATTR(hrtbt_enable, S_IWUSR | S_IRUGO, show_hrtbt_enb, | |
191 | store_hrtbt_enb); | |
192 | QIB_PORT_ATTR(status, S_IRUGO, show_status, NULL); | |
193 | QIB_PORT_ATTR(status_str, S_IRUGO, show_status_str, NULL); | |
194 | ||
195 | static struct attribute *port_default_attributes[] = { | |
196 | &qib_port_attr_loopback.attr, | |
197 | &qib_port_attr_led_override.attr, | |
198 | &qib_port_attr_hrtbt_enable.attr, | |
199 | &qib_port_attr_status.attr, | |
200 | &qib_port_attr_status_str.attr, | |
201 | NULL | |
202 | }; | |
203 | ||
36a8f01c MM |
204 | /* |
205 | * Start of per-port congestion control structures and support code | |
206 | */ | |
207 | ||
208 | /* | |
209 | * Congestion control table size followed by table entries | |
210 | */ | |
211 | static ssize_t read_cc_table_bin(struct file *filp, struct kobject *kobj, | |
212 | struct bin_attribute *bin_attr, | |
213 | char *buf, loff_t pos, size_t count) | |
214 | { | |
215 | int ret; | |
216 | struct qib_pportdata *ppd = | |
217 | container_of(kobj, struct qib_pportdata, pport_cc_kobj); | |
218 | ||
219 | if (!qib_cc_table_size || !ppd->ccti_entries_shadow) | |
220 | return -EINVAL; | |
221 | ||
222 | ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow) | |
223 | + sizeof(__be16); | |
224 | ||
225 | if (pos > ret) | |
226 | return -EINVAL; | |
227 | ||
228 | if (count > ret - pos) | |
229 | count = ret - pos; | |
230 | ||
231 | if (!count) | |
232 | return count; | |
233 | ||
234 | spin_lock(&ppd->cc_shadow_lock); | |
235 | memcpy(buf, ppd->ccti_entries_shadow, count); | |
236 | spin_unlock(&ppd->cc_shadow_lock); | |
237 | ||
238 | return count; | |
239 | } | |
240 | ||
241 | static void qib_port_release(struct kobject *kobj) | |
242 | { | |
243 | /* nothing to do since memory is freed by qib_free_devdata() */ | |
244 | } | |
245 | ||
246 | static struct kobj_type qib_port_cc_ktype = { | |
247 | .release = qib_port_release, | |
248 | }; | |
249 | ||
250 | static struct bin_attribute cc_table_bin_attr = { | |
251 | .attr = {.name = "cc_table_bin", .mode = 0444}, | |
252 | .read = read_cc_table_bin, | |
253 | .size = PAGE_SIZE, | |
254 | }; | |
255 | ||
256 | /* | |
257 | * Congestion settings: port control, control map and an array of 16 | |
258 | * entries for the congestion entries - increase, timer, event log | |
259 | * trigger threshold and the minimum injection rate delay. | |
260 | */ | |
261 | static ssize_t read_cc_setting_bin(struct file *filp, struct kobject *kobj, | |
262 | struct bin_attribute *bin_attr, | |
263 | char *buf, loff_t pos, size_t count) | |
264 | { | |
265 | int ret; | |
266 | struct qib_pportdata *ppd = | |
267 | container_of(kobj, struct qib_pportdata, pport_cc_kobj); | |
268 | ||
269 | if (!qib_cc_table_size || !ppd->congestion_entries_shadow) | |
270 | return -EINVAL; | |
271 | ||
272 | ret = sizeof(struct ib_cc_congestion_setting_attr_shadow); | |
273 | ||
274 | if (pos > ret) | |
275 | return -EINVAL; | |
276 | if (count > ret - pos) | |
277 | count = ret - pos; | |
278 | ||
279 | if (!count) | |
280 | return count; | |
281 | ||
282 | spin_lock(&ppd->cc_shadow_lock); | |
283 | memcpy(buf, ppd->congestion_entries_shadow, count); | |
284 | spin_unlock(&ppd->cc_shadow_lock); | |
285 | ||
286 | return count; | |
287 | } | |
288 | ||
289 | static struct bin_attribute cc_setting_bin_attr = { | |
290 | .attr = {.name = "cc_settings_bin", .mode = 0444}, | |
291 | .read = read_cc_setting_bin, | |
292 | .size = PAGE_SIZE, | |
293 | }; | |
294 | ||
295 | ||
f931551b RC |
296 | static ssize_t qib_portattr_show(struct kobject *kobj, |
297 | struct attribute *attr, char *buf) | |
298 | { | |
299 | struct qib_port_attr *pattr = | |
300 | container_of(attr, struct qib_port_attr, attr); | |
301 | struct qib_pportdata *ppd = | |
302 | container_of(kobj, struct qib_pportdata, pport_kobj); | |
303 | ||
304 | return pattr->show(ppd, buf); | |
305 | } | |
306 | ||
307 | static ssize_t qib_portattr_store(struct kobject *kobj, | |
308 | struct attribute *attr, const char *buf, size_t len) | |
309 | { | |
310 | struct qib_port_attr *pattr = | |
311 | container_of(attr, struct qib_port_attr, attr); | |
312 | struct qib_pportdata *ppd = | |
313 | container_of(kobj, struct qib_pportdata, pport_kobj); | |
314 | ||
315 | return pattr->store(ppd, buf, len); | |
316 | } | |
317 | ||
f931551b RC |
318 | |
319 | static const struct sysfs_ops qib_port_ops = { | |
320 | .show = qib_portattr_show, | |
321 | .store = qib_portattr_store, | |
322 | }; | |
323 | ||
324 | static struct kobj_type qib_port_ktype = { | |
325 | .release = qib_port_release, | |
326 | .sysfs_ops = &qib_port_ops, | |
327 | .default_attrs = port_default_attributes | |
328 | }; | |
329 | ||
330 | /* Start sl2vl */ | |
331 | ||
332 | #define QIB_SL2VL_ATTR(N) \ | |
333 | static struct qib_sl2vl_attr qib_sl2vl_attr_##N = { \ | |
334 | .attr = { .name = __stringify(N), .mode = 0444 }, \ | |
335 | .sl = N \ | |
336 | } | |
337 | ||
338 | struct qib_sl2vl_attr { | |
339 | struct attribute attr; | |
340 | int sl; | |
341 | }; | |
342 | ||
343 | QIB_SL2VL_ATTR(0); | |
344 | QIB_SL2VL_ATTR(1); | |
345 | QIB_SL2VL_ATTR(2); | |
346 | QIB_SL2VL_ATTR(3); | |
347 | QIB_SL2VL_ATTR(4); | |
348 | QIB_SL2VL_ATTR(5); | |
349 | QIB_SL2VL_ATTR(6); | |
350 | QIB_SL2VL_ATTR(7); | |
351 | QIB_SL2VL_ATTR(8); | |
352 | QIB_SL2VL_ATTR(9); | |
353 | QIB_SL2VL_ATTR(10); | |
354 | QIB_SL2VL_ATTR(11); | |
355 | QIB_SL2VL_ATTR(12); | |
356 | QIB_SL2VL_ATTR(13); | |
357 | QIB_SL2VL_ATTR(14); | |
358 | QIB_SL2VL_ATTR(15); | |
359 | ||
360 | static struct attribute *sl2vl_default_attributes[] = { | |
361 | &qib_sl2vl_attr_0.attr, | |
362 | &qib_sl2vl_attr_1.attr, | |
363 | &qib_sl2vl_attr_2.attr, | |
364 | &qib_sl2vl_attr_3.attr, | |
365 | &qib_sl2vl_attr_4.attr, | |
366 | &qib_sl2vl_attr_5.attr, | |
367 | &qib_sl2vl_attr_6.attr, | |
368 | &qib_sl2vl_attr_7.attr, | |
369 | &qib_sl2vl_attr_8.attr, | |
370 | &qib_sl2vl_attr_9.attr, | |
371 | &qib_sl2vl_attr_10.attr, | |
372 | &qib_sl2vl_attr_11.attr, | |
373 | &qib_sl2vl_attr_12.attr, | |
374 | &qib_sl2vl_attr_13.attr, | |
375 | &qib_sl2vl_attr_14.attr, | |
376 | &qib_sl2vl_attr_15.attr, | |
377 | NULL | |
378 | }; | |
379 | ||
380 | static ssize_t sl2vl_attr_show(struct kobject *kobj, struct attribute *attr, | |
381 | char *buf) | |
382 | { | |
383 | struct qib_sl2vl_attr *sattr = | |
384 | container_of(attr, struct qib_sl2vl_attr, attr); | |
385 | struct qib_pportdata *ppd = | |
386 | container_of(kobj, struct qib_pportdata, sl2vl_kobj); | |
387 | struct qib_ibport *qibp = &ppd->ibport_data; | |
388 | ||
389 | return sprintf(buf, "%u\n", qibp->sl_to_vl[sattr->sl]); | |
390 | } | |
391 | ||
392 | static const struct sysfs_ops qib_sl2vl_ops = { | |
393 | .show = sl2vl_attr_show, | |
394 | }; | |
395 | ||
396 | static struct kobj_type qib_sl2vl_ktype = { | |
397 | .release = qib_port_release, | |
398 | .sysfs_ops = &qib_sl2vl_ops, | |
399 | .default_attrs = sl2vl_default_attributes | |
400 | }; | |
401 | ||
402 | /* End sl2vl */ | |
403 | ||
404 | /* Start diag_counters */ | |
405 | ||
406 | #define QIB_DIAGC_ATTR(N) \ | |
407 | static struct qib_diagc_attr qib_diagc_attr_##N = { \ | |
4c6931f5 | 408 | .attr = { .name = __stringify(N), .mode = 0664 }, \ |
f931551b RC |
409 | .counter = offsetof(struct qib_ibport, n_##N) \ |
410 | } | |
411 | ||
412 | struct qib_diagc_attr { | |
413 | struct attribute attr; | |
414 | size_t counter; | |
415 | }; | |
416 | ||
417 | QIB_DIAGC_ATTR(rc_resends); | |
418 | QIB_DIAGC_ATTR(rc_acks); | |
419 | QIB_DIAGC_ATTR(rc_qacks); | |
420 | QIB_DIAGC_ATTR(rc_delayed_comp); | |
421 | QIB_DIAGC_ATTR(seq_naks); | |
422 | QIB_DIAGC_ATTR(rdma_seq); | |
423 | QIB_DIAGC_ATTR(rnr_naks); | |
424 | QIB_DIAGC_ATTR(other_naks); | |
425 | QIB_DIAGC_ATTR(rc_timeouts); | |
426 | QIB_DIAGC_ATTR(loop_pkts); | |
427 | QIB_DIAGC_ATTR(pkt_drops); | |
428 | QIB_DIAGC_ATTR(dmawait); | |
429 | QIB_DIAGC_ATTR(unaligned); | |
430 | QIB_DIAGC_ATTR(rc_dupreq); | |
431 | QIB_DIAGC_ATTR(rc_seqnak); | |
432 | ||
433 | static struct attribute *diagc_default_attributes[] = { | |
434 | &qib_diagc_attr_rc_resends.attr, | |
435 | &qib_diagc_attr_rc_acks.attr, | |
436 | &qib_diagc_attr_rc_qacks.attr, | |
437 | &qib_diagc_attr_rc_delayed_comp.attr, | |
438 | &qib_diagc_attr_seq_naks.attr, | |
439 | &qib_diagc_attr_rdma_seq.attr, | |
440 | &qib_diagc_attr_rnr_naks.attr, | |
441 | &qib_diagc_attr_other_naks.attr, | |
442 | &qib_diagc_attr_rc_timeouts.attr, | |
443 | &qib_diagc_attr_loop_pkts.attr, | |
444 | &qib_diagc_attr_pkt_drops.attr, | |
445 | &qib_diagc_attr_dmawait.attr, | |
446 | &qib_diagc_attr_unaligned.attr, | |
447 | &qib_diagc_attr_rc_dupreq.attr, | |
448 | &qib_diagc_attr_rc_seqnak.attr, | |
449 | NULL | |
450 | }; | |
451 | ||
452 | static ssize_t diagc_attr_show(struct kobject *kobj, struct attribute *attr, | |
453 | char *buf) | |
454 | { | |
455 | struct qib_diagc_attr *dattr = | |
456 | container_of(attr, struct qib_diagc_attr, attr); | |
457 | struct qib_pportdata *ppd = | |
458 | container_of(kobj, struct qib_pportdata, diagc_kobj); | |
459 | struct qib_ibport *qibp = &ppd->ibport_data; | |
460 | ||
461 | return sprintf(buf, "%u\n", *(u32 *)((char *)qibp + dattr->counter)); | |
462 | } | |
463 | ||
4c6931f5 IW |
464 | static ssize_t diagc_attr_store(struct kobject *kobj, struct attribute *attr, |
465 | const char *buf, size_t size) | |
466 | { | |
467 | struct qib_diagc_attr *dattr = | |
468 | container_of(attr, struct qib_diagc_attr, attr); | |
469 | struct qib_pportdata *ppd = | |
470 | container_of(kobj, struct qib_pportdata, diagc_kobj); | |
471 | struct qib_ibport *qibp = &ppd->ibport_data; | |
7fac3301 MM |
472 | u32 val; |
473 | int ret; | |
4c6931f5 | 474 | |
7fac3301 MM |
475 | ret = kstrtou32(buf, 0, &val); |
476 | if (ret) | |
477 | return ret; | |
4c6931f5 IW |
478 | *(u32 *)((char *) qibp + dattr->counter) = val; |
479 | return size; | |
480 | } | |
481 | ||
f931551b RC |
482 | static const struct sysfs_ops qib_diagc_ops = { |
483 | .show = diagc_attr_show, | |
4c6931f5 | 484 | .store = diagc_attr_store, |
f931551b RC |
485 | }; |
486 | ||
487 | static struct kobj_type qib_diagc_ktype = { | |
488 | .release = qib_port_release, | |
489 | .sysfs_ops = &qib_diagc_ops, | |
490 | .default_attrs = diagc_default_attributes | |
491 | }; | |
492 | ||
493 | /* End diag_counters */ | |
494 | ||
495 | /* end of per-port file structures and support code */ | |
496 | ||
497 | /* | |
498 | * Start of per-unit (or driver, in some cases, but replicated | |
499 | * per unit) functions (these get a device *) | |
500 | */ | |
501 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, | |
502 | char *buf) | |
503 | { | |
504 | struct qib_ibdev *dev = | |
505 | container_of(device, struct qib_ibdev, ibdev.dev); | |
506 | ||
507 | return sprintf(buf, "%x\n", dd_from_dev(dev)->minrev); | |
508 | } | |
509 | ||
510 | static ssize_t show_hca(struct device *device, struct device_attribute *attr, | |
511 | char *buf) | |
512 | { | |
513 | struct qib_ibdev *dev = | |
514 | container_of(device, struct qib_ibdev, ibdev.dev); | |
515 | struct qib_devdata *dd = dd_from_dev(dev); | |
516 | int ret; | |
517 | ||
518 | if (!dd->boardname) | |
519 | ret = -EINVAL; | |
520 | else | |
521 | ret = scnprintf(buf, PAGE_SIZE, "%s\n", dd->boardname); | |
522 | return ret; | |
523 | } | |
524 | ||
525 | static ssize_t show_version(struct device *device, | |
526 | struct device_attribute *attr, char *buf) | |
527 | { | |
528 | /* The string printed here is already newline-terminated. */ | |
529 | return scnprintf(buf, PAGE_SIZE, "%s", (char *)ib_qib_version); | |
530 | } | |
531 | ||
532 | static ssize_t show_boardversion(struct device *device, | |
533 | struct device_attribute *attr, char *buf) | |
534 | { | |
535 | struct qib_ibdev *dev = | |
536 | container_of(device, struct qib_ibdev, ibdev.dev); | |
537 | struct qib_devdata *dd = dd_from_dev(dev); | |
538 | ||
539 | /* The string printed here is already newline-terminated. */ | |
540 | return scnprintf(buf, PAGE_SIZE, "%s", dd->boardversion); | |
541 | } | |
542 | ||
543 | ||
544 | static ssize_t show_localbus_info(struct device *device, | |
545 | struct device_attribute *attr, char *buf) | |
546 | { | |
547 | struct qib_ibdev *dev = | |
548 | container_of(device, struct qib_ibdev, ibdev.dev); | |
549 | struct qib_devdata *dd = dd_from_dev(dev); | |
550 | ||
551 | /* The string printed here is already newline-terminated. */ | |
552 | return scnprintf(buf, PAGE_SIZE, "%s", dd->lbus_info); | |
553 | } | |
554 | ||
555 | ||
556 | static ssize_t show_nctxts(struct device *device, | |
557 | struct device_attribute *attr, char *buf) | |
558 | { | |
559 | struct qib_ibdev *dev = | |
560 | container_of(device, struct qib_ibdev, ibdev.dev); | |
561 | struct qib_devdata *dd = dd_from_dev(dev); | |
562 | ||
563 | /* Return the number of user ports (contexts) available. */ | |
6ceaadee MH |
564 | /* The calculation below deals with a special case where |
565 | * cfgctxts is set to 1 on a single-port board. */ | |
566 | return scnprintf(buf, PAGE_SIZE, "%u\n", | |
567 | (dd->first_user_ctxt > dd->cfgctxts) ? 0 : | |
568 | (dd->cfgctxts - dd->first_user_ctxt)); | |
f931551b RC |
569 | } |
570 | ||
2df4f757 RV |
571 | static ssize_t show_nfreectxts(struct device *device, |
572 | struct device_attribute *attr, char *buf) | |
573 | { | |
574 | struct qib_ibdev *dev = | |
575 | container_of(device, struct qib_ibdev, ibdev.dev); | |
576 | struct qib_devdata *dd = dd_from_dev(dev); | |
577 | ||
578 | /* Return the number of free user ports (contexts) available. */ | |
53ab1c64 | 579 | return scnprintf(buf, PAGE_SIZE, "%u\n", dd->freectxts); |
2df4f757 RV |
580 | } |
581 | ||
f931551b RC |
582 | static ssize_t show_serial(struct device *device, |
583 | struct device_attribute *attr, char *buf) | |
584 | { | |
585 | struct qib_ibdev *dev = | |
586 | container_of(device, struct qib_ibdev, ibdev.dev); | |
587 | struct qib_devdata *dd = dd_from_dev(dev); | |
588 | ||
589 | buf[sizeof dd->serial] = '\0'; | |
590 | memcpy(buf, dd->serial, sizeof dd->serial); | |
591 | strcat(buf, "\n"); | |
592 | return strlen(buf); | |
593 | } | |
594 | ||
595 | static ssize_t store_chip_reset(struct device *device, | |
596 | struct device_attribute *attr, const char *buf, | |
597 | size_t count) | |
598 | { | |
599 | struct qib_ibdev *dev = | |
600 | container_of(device, struct qib_ibdev, ibdev.dev); | |
601 | struct qib_devdata *dd = dd_from_dev(dev); | |
602 | int ret; | |
603 | ||
604 | if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) { | |
605 | ret = -EINVAL; | |
606 | goto bail; | |
607 | } | |
608 | ||
609 | ret = qib_reset_device(dd->unit); | |
610 | bail: | |
611 | return ret < 0 ? ret : count; | |
612 | } | |
613 | ||
614 | static ssize_t show_logged_errs(struct device *device, | |
615 | struct device_attribute *attr, char *buf) | |
616 | { | |
617 | struct qib_ibdev *dev = | |
618 | container_of(device, struct qib_ibdev, ibdev.dev); | |
619 | struct qib_devdata *dd = dd_from_dev(dev); | |
620 | int idx, count; | |
621 | ||
622 | /* force consistency with actual EEPROM */ | |
623 | if (qib_update_eeprom_log(dd) != 0) | |
624 | return -ENXIO; | |
625 | ||
626 | count = 0; | |
627 | for (idx = 0; idx < QIB_EEP_LOG_CNT; ++idx) { | |
628 | count += scnprintf(buf + count, PAGE_SIZE - count, "%d%c", | |
629 | dd->eep_st_errs[idx], | |
630 | idx == (QIB_EEP_LOG_CNT - 1) ? '\n' : ' '); | |
631 | } | |
632 | ||
633 | return count; | |
634 | } | |
635 | ||
636 | /* | |
637 | * Dump tempsense regs. in decimal, to ease shell-scripts. | |
638 | */ | |
639 | static ssize_t show_tempsense(struct device *device, | |
640 | struct device_attribute *attr, char *buf) | |
641 | { | |
642 | struct qib_ibdev *dev = | |
643 | container_of(device, struct qib_ibdev, ibdev.dev); | |
644 | struct qib_devdata *dd = dd_from_dev(dev); | |
645 | int ret; | |
646 | int idx; | |
647 | u8 regvals[8]; | |
648 | ||
649 | ret = -ENXIO; | |
650 | for (idx = 0; idx < 8; ++idx) { | |
651 | if (idx == 6) | |
652 | continue; | |
653 | ret = dd->f_tempsense_rd(dd, idx); | |
654 | if (ret < 0) | |
655 | break; | |
656 | regvals[idx] = ret; | |
657 | } | |
658 | if (idx == 8) | |
659 | ret = scnprintf(buf, PAGE_SIZE, "%d %d %02X %02X %d %d\n", | |
660 | *(signed char *)(regvals), | |
661 | *(signed char *)(regvals + 1), | |
662 | regvals[2], regvals[3], | |
663 | *(signed char *)(regvals + 5), | |
664 | *(signed char *)(regvals + 7)); | |
665 | return ret; | |
666 | } | |
667 | ||
668 | /* | |
669 | * end of per-unit (or driver, in some cases, but replicated | |
670 | * per unit) functions | |
671 | */ | |
672 | ||
673 | /* start of per-unit file structures and support code */ | |
674 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); | |
675 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
676 | static DEVICE_ATTR(board_id, S_IRUGO, show_hca, NULL); | |
677 | static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); | |
678 | static DEVICE_ATTR(nctxts, S_IRUGO, show_nctxts, NULL); | |
2df4f757 | 679 | static DEVICE_ATTR(nfreectxts, S_IRUGO, show_nfreectxts, NULL); |
f931551b RC |
680 | static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL); |
681 | static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL); | |
682 | static DEVICE_ATTR(logged_errors, S_IRUGO, show_logged_errs, NULL); | |
683 | static DEVICE_ATTR(tempsense, S_IRUGO, show_tempsense, NULL); | |
684 | static DEVICE_ATTR(localbus_info, S_IRUGO, show_localbus_info, NULL); | |
685 | static DEVICE_ATTR(chip_reset, S_IWUSR, NULL, store_chip_reset); | |
686 | ||
687 | static struct device_attribute *qib_attributes[] = { | |
688 | &dev_attr_hw_rev, | |
689 | &dev_attr_hca_type, | |
690 | &dev_attr_board_id, | |
691 | &dev_attr_version, | |
692 | &dev_attr_nctxts, | |
2df4f757 | 693 | &dev_attr_nfreectxts, |
f931551b RC |
694 | &dev_attr_serial, |
695 | &dev_attr_boardversion, | |
696 | &dev_attr_logged_errors, | |
697 | &dev_attr_tempsense, | |
698 | &dev_attr_localbus_info, | |
699 | &dev_attr_chip_reset, | |
700 | }; | |
701 | ||
702 | int qib_create_port_files(struct ib_device *ibdev, u8 port_num, | |
703 | struct kobject *kobj) | |
704 | { | |
705 | struct qib_pportdata *ppd; | |
706 | struct qib_devdata *dd = dd_from_ibdev(ibdev); | |
707 | int ret; | |
708 | ||
709 | if (!port_num || port_num > dd->num_pports) { | |
7fac3301 MM |
710 | qib_dev_err(dd, |
711 | "Skipping infiniband class with invalid port %u\n", | |
712 | port_num); | |
f931551b RC |
713 | ret = -ENODEV; |
714 | goto bail; | |
715 | } | |
716 | ppd = &dd->pport[port_num - 1]; | |
717 | ||
718 | ret = kobject_init_and_add(&ppd->pport_kobj, &qib_port_ktype, kobj, | |
719 | "linkcontrol"); | |
720 | if (ret) { | |
7fac3301 MM |
721 | qib_dev_err(dd, |
722 | "Skipping linkcontrol sysfs info, (err %d) port %u\n", | |
723 | ret, port_num); | |
f931551b RC |
724 | goto bail; |
725 | } | |
726 | kobject_uevent(&ppd->pport_kobj, KOBJ_ADD); | |
727 | ||
728 | ret = kobject_init_and_add(&ppd->sl2vl_kobj, &qib_sl2vl_ktype, kobj, | |
729 | "sl2vl"); | |
730 | if (ret) { | |
7fac3301 MM |
731 | qib_dev_err(dd, |
732 | "Skipping sl2vl sysfs info, (err %d) port %u\n", | |
733 | ret, port_num); | |
36a8f01c | 734 | goto bail_link; |
f931551b RC |
735 | } |
736 | kobject_uevent(&ppd->sl2vl_kobj, KOBJ_ADD); | |
737 | ||
738 | ret = kobject_init_and_add(&ppd->diagc_kobj, &qib_diagc_ktype, kobj, | |
739 | "diag_counters"); | |
740 | if (ret) { | |
7fac3301 MM |
741 | qib_dev_err(dd, |
742 | "Skipping diag_counters sysfs info, (err %d) port %u\n", | |
743 | ret, port_num); | |
36a8f01c | 744 | goto bail_sl; |
f931551b RC |
745 | } |
746 | kobject_uevent(&ppd->diagc_kobj, KOBJ_ADD); | |
747 | ||
36a8f01c MM |
748 | if (!qib_cc_table_size || !ppd->congestion_entries_shadow) |
749 | return 0; | |
750 | ||
751 | ret = kobject_init_and_add(&ppd->pport_cc_kobj, &qib_port_cc_ktype, | |
752 | kobj, "CCMgtA"); | |
753 | if (ret) { | |
754 | qib_dev_err(dd, | |
755 | "Skipping Congestion Control sysfs info, (err %d) port %u\n", | |
756 | ret, port_num); | |
757 | goto bail_diagc; | |
758 | } | |
759 | ||
760 | kobject_uevent(&ppd->pport_cc_kobj, KOBJ_ADD); | |
761 | ||
762 | ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, | |
763 | &cc_setting_bin_attr); | |
764 | if (ret) { | |
765 | qib_dev_err(dd, | |
766 | "Skipping Congestion Control setting sysfs info, (err %d) port %u\n", | |
767 | ret, port_num); | |
768 | goto bail_cc; | |
769 | } | |
770 | ||
771 | ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, | |
772 | &cc_table_bin_attr); | |
773 | if (ret) { | |
774 | qib_dev_err(dd, | |
775 | "Skipping Congestion Control table sysfs info, (err %d) port %u\n", | |
776 | ret, port_num); | |
777 | goto bail_cc_entry_bin; | |
778 | } | |
779 | ||
780 | qib_devinfo(dd->pcidev, | |
781 | "IB%u: Congestion Control Agent enabled for port %d\n", | |
782 | dd->unit, port_num); | |
783 | ||
f931551b RC |
784 | return 0; |
785 | ||
36a8f01c MM |
786 | bail_cc_entry_bin: |
787 | sysfs_remove_bin_file(&ppd->pport_cc_kobj, &cc_setting_bin_attr); | |
788 | bail_cc: | |
789 | kobject_put(&ppd->pport_cc_kobj); | |
f931551b | 790 | bail_diagc: |
36a8f01c | 791 | kobject_put(&ppd->diagc_kobj); |
f931551b | 792 | bail_sl: |
36a8f01c MM |
793 | kobject_put(&ppd->sl2vl_kobj); |
794 | bail_link: | |
f931551b RC |
795 | kobject_put(&ppd->pport_kobj); |
796 | bail: | |
797 | return ret; | |
798 | } | |
799 | ||
800 | /* | |
801 | * Register and create our files in /sys/class/infiniband. | |
802 | */ | |
803 | int qib_verbs_register_sysfs(struct qib_devdata *dd) | |
804 | { | |
805 | struct ib_device *dev = &dd->verbs_dev.ibdev; | |
806 | int i, ret; | |
807 | ||
808 | for (i = 0; i < ARRAY_SIZE(qib_attributes); ++i) { | |
809 | ret = device_create_file(&dev->dev, qib_attributes[i]); | |
810 | if (ret) | |
c9bdad3c | 811 | goto bail; |
f931551b RC |
812 | } |
813 | ||
814 | return 0; | |
c9bdad3c MM |
815 | bail: |
816 | for (i = 0; i < ARRAY_SIZE(qib_attributes); ++i) | |
817 | device_remove_file(&dev->dev, qib_attributes[i]); | |
818 | return ret; | |
f931551b RC |
819 | } |
820 | ||
821 | /* | |
822 | * Unregister and remove our files in /sys/class/infiniband. | |
823 | */ | |
824 | void qib_verbs_unregister_sysfs(struct qib_devdata *dd) | |
825 | { | |
826 | struct qib_pportdata *ppd; | |
827 | int i; | |
828 | ||
829 | for (i = 0; i < dd->num_pports; i++) { | |
830 | ppd = &dd->pport[i]; | |
36a8f01c MM |
831 | if (qib_cc_table_size && |
832 | ppd->congestion_entries_shadow) { | |
833 | sysfs_remove_bin_file(&ppd->pport_cc_kobj, | |
834 | &cc_setting_bin_attr); | |
835 | sysfs_remove_bin_file(&ppd->pport_cc_kobj, | |
836 | &cc_table_bin_attr); | |
837 | kobject_put(&ppd->pport_cc_kobj); | |
838 | } | |
f931551b | 839 | kobject_put(&ppd->sl2vl_kobj); |
36a8f01c | 840 | kobject_put(&ppd->pport_kobj); |
f931551b RC |
841 | } |
842 | } |