2 * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved.
3 * Copyright (c) 2006 PathScale, Inc. All rights reserved.
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:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
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.
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
33 #include <linux/ctype.h>
38 * qib_parse_ushort - parse an unsigned short value in an arbitrary base
39 * @str: the string containing the number
40 * @valp: where to put the result
42 * Returns the number of bytes consumed, or negative value on error.
44 static int qib_parse_ushort(const char *str, unsigned short *valp)
50 if (!isdigit(str[0])) {
55 val = simple_strtoul(str, &end, 0);
72 /* start of per-port functions */
74 * Get/Set heartbeat enable. OR of 1=enabled, 2=auto
76 static ssize_t show_hrtbt_enb(struct qib_pportdata *ppd, char *buf)
78 struct qib_devdata *dd = ppd->dd;
81 ret = dd->f_get_ib_cfg(ppd, QIB_IB_CFG_HRTBT);
82 ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
86 static ssize_t store_hrtbt_enb(struct qib_pportdata *ppd, const char *buf,
89 struct qib_devdata *dd = ppd->dd;
93 ret = qib_parse_ushort(buf, &val);
96 * Set the "intentional" heartbeat enable per either of
97 * "Enable" and "Auto", as these are normally set together.
98 * This bit is consulted when leaving loopback mode,
99 * because entering loopback mode overrides it and automatically
100 * disables heartbeat.
103 ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val);
105 qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n");
106 return ret < 0 ? ret : count;
109 static ssize_t store_loopback(struct qib_pportdata *ppd, const char *buf,
112 struct qib_devdata *dd = ppd->dd;
115 r = dd->f_set_ib_loopback(ppd, buf);
122 static ssize_t store_led_override(struct qib_pportdata *ppd, const char *buf,
125 struct qib_devdata *dd = ppd->dd;
129 ret = qib_parse_ushort(buf, &val);
131 qib_set_led_override(ppd, val);
133 qib_dev_err(dd, "attempt to set invalid LED override\n");
134 return ret < 0 ? ret : count;
137 static ssize_t show_status(struct qib_pportdata *ppd, char *buf)
144 ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n",
145 (unsigned long long) *(ppd->statusp));
150 * For userland compatibility, these offsets must remain fixed.
151 * They are strings for QIB_STATUS_*
153 static const char *qib_status_str[] = {
163 "Fatal_Hardware_Error",
167 static ssize_t show_status_str(struct qib_pportdata *ppd, char *buf)
180 for (any = i = 0; s && qib_status_str[i]; i++) {
183 if (any && strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE)
185 if (strlcat(buf, qib_status_str[i], PAGE_SIZE) >=
193 strlcat(buf, "\n", PAGE_SIZE);
201 /* end of per-port functions */
204 * Start of per-port file structures and support code
205 * Because we are fitting into other infrastructure, we have to supply the
206 * full set of kobject/sysfs_ops structures and routines.
208 #define QIB_PORT_ATTR(name, mode, show, store) \
209 static struct qib_port_attr qib_port_attr_##name = \
210 __ATTR(name, mode, show, store)
212 struct qib_port_attr {
213 struct attribute attr;
214 ssize_t (*show)(struct qib_pportdata *, char *);
215 ssize_t (*store)(struct qib_pportdata *, const char *, size_t);
218 QIB_PORT_ATTR(loopback, S_IWUSR, NULL, store_loopback);
219 QIB_PORT_ATTR(led_override, S_IWUSR, NULL, store_led_override);
220 QIB_PORT_ATTR(hrtbt_enable, S_IWUSR | S_IRUGO, show_hrtbt_enb,
222 QIB_PORT_ATTR(status, S_IRUGO, show_status, NULL);
223 QIB_PORT_ATTR(status_str, S_IRUGO, show_status_str, NULL);
225 static struct attribute *port_default_attributes[] = {
226 &qib_port_attr_loopback.attr,
227 &qib_port_attr_led_override.attr,
228 &qib_port_attr_hrtbt_enable.attr,
229 &qib_port_attr_status.attr,
230 &qib_port_attr_status_str.attr,
234 static ssize_t qib_portattr_show(struct kobject *kobj,
235 struct attribute *attr, char *buf)
237 struct qib_port_attr *pattr =
238 container_of(attr, struct qib_port_attr, attr);
239 struct qib_pportdata *ppd =
240 container_of(kobj, struct qib_pportdata, pport_kobj);
242 return pattr->show(ppd, buf);
245 static ssize_t qib_portattr_store(struct kobject *kobj,
246 struct attribute *attr, const char *buf, size_t len)
248 struct qib_port_attr *pattr =
249 container_of(attr, struct qib_port_attr, attr);
250 struct qib_pportdata *ppd =
251 container_of(kobj, struct qib_pportdata, pport_kobj);
253 return pattr->store(ppd, buf, len);
256 static void qib_port_release(struct kobject *kobj)
258 /* nothing to do since memory is freed by qib_free_devdata() */
261 static const struct sysfs_ops qib_port_ops = {
262 .show = qib_portattr_show,
263 .store = qib_portattr_store,
266 static struct kobj_type qib_port_ktype = {
267 .release = qib_port_release,
268 .sysfs_ops = &qib_port_ops,
269 .default_attrs = port_default_attributes
274 #define QIB_SL2VL_ATTR(N) \
275 static struct qib_sl2vl_attr qib_sl2vl_attr_##N = { \
276 .attr = { .name = __stringify(N), .mode = 0444 }, \
280 struct qib_sl2vl_attr {
281 struct attribute attr;
302 static struct attribute *sl2vl_default_attributes[] = {
303 &qib_sl2vl_attr_0.attr,
304 &qib_sl2vl_attr_1.attr,
305 &qib_sl2vl_attr_2.attr,
306 &qib_sl2vl_attr_3.attr,
307 &qib_sl2vl_attr_4.attr,
308 &qib_sl2vl_attr_5.attr,
309 &qib_sl2vl_attr_6.attr,
310 &qib_sl2vl_attr_7.attr,
311 &qib_sl2vl_attr_8.attr,
312 &qib_sl2vl_attr_9.attr,
313 &qib_sl2vl_attr_10.attr,
314 &qib_sl2vl_attr_11.attr,
315 &qib_sl2vl_attr_12.attr,
316 &qib_sl2vl_attr_13.attr,
317 &qib_sl2vl_attr_14.attr,
318 &qib_sl2vl_attr_15.attr,
322 static ssize_t sl2vl_attr_show(struct kobject *kobj, struct attribute *attr,
325 struct qib_sl2vl_attr *sattr =
326 container_of(attr, struct qib_sl2vl_attr, attr);
327 struct qib_pportdata *ppd =
328 container_of(kobj, struct qib_pportdata, sl2vl_kobj);
329 struct qib_ibport *qibp = &ppd->ibport_data;
331 return sprintf(buf, "%u\n", qibp->sl_to_vl[sattr->sl]);
334 static const struct sysfs_ops qib_sl2vl_ops = {
335 .show = sl2vl_attr_show,
338 static struct kobj_type qib_sl2vl_ktype = {
339 .release = qib_port_release,
340 .sysfs_ops = &qib_sl2vl_ops,
341 .default_attrs = sl2vl_default_attributes
346 /* Start diag_counters */
348 #define QIB_DIAGC_ATTR(N) \
349 static struct qib_diagc_attr qib_diagc_attr_##N = { \
350 .attr = { .name = __stringify(N), .mode = 0664 }, \
351 .counter = offsetof(struct qib_ibport, n_##N) \
354 struct qib_diagc_attr {
355 struct attribute attr;
359 QIB_DIAGC_ATTR(rc_resends);
360 QIB_DIAGC_ATTR(rc_acks);
361 QIB_DIAGC_ATTR(rc_qacks);
362 QIB_DIAGC_ATTR(rc_delayed_comp);
363 QIB_DIAGC_ATTR(seq_naks);
364 QIB_DIAGC_ATTR(rdma_seq);
365 QIB_DIAGC_ATTR(rnr_naks);
366 QIB_DIAGC_ATTR(other_naks);
367 QIB_DIAGC_ATTR(rc_timeouts);
368 QIB_DIAGC_ATTR(loop_pkts);
369 QIB_DIAGC_ATTR(pkt_drops);
370 QIB_DIAGC_ATTR(dmawait);
371 QIB_DIAGC_ATTR(unaligned);
372 QIB_DIAGC_ATTR(rc_dupreq);
373 QIB_DIAGC_ATTR(rc_seqnak);
375 static struct attribute *diagc_default_attributes[] = {
376 &qib_diagc_attr_rc_resends.attr,
377 &qib_diagc_attr_rc_acks.attr,
378 &qib_diagc_attr_rc_qacks.attr,
379 &qib_diagc_attr_rc_delayed_comp.attr,
380 &qib_diagc_attr_seq_naks.attr,
381 &qib_diagc_attr_rdma_seq.attr,
382 &qib_diagc_attr_rnr_naks.attr,
383 &qib_diagc_attr_other_naks.attr,
384 &qib_diagc_attr_rc_timeouts.attr,
385 &qib_diagc_attr_loop_pkts.attr,
386 &qib_diagc_attr_pkt_drops.attr,
387 &qib_diagc_attr_dmawait.attr,
388 &qib_diagc_attr_unaligned.attr,
389 &qib_diagc_attr_rc_dupreq.attr,
390 &qib_diagc_attr_rc_seqnak.attr,
394 static ssize_t diagc_attr_show(struct kobject *kobj, struct attribute *attr,
397 struct qib_diagc_attr *dattr =
398 container_of(attr, struct qib_diagc_attr, attr);
399 struct qib_pportdata *ppd =
400 container_of(kobj, struct qib_pportdata, diagc_kobj);
401 struct qib_ibport *qibp = &ppd->ibport_data;
403 return sprintf(buf, "%u\n", *(u32 *)((char *)qibp + dattr->counter));
406 static ssize_t diagc_attr_store(struct kobject *kobj, struct attribute *attr,
407 const char *buf, size_t size)
409 struct qib_diagc_attr *dattr =
410 container_of(attr, struct qib_diagc_attr, attr);
411 struct qib_pportdata *ppd =
412 container_of(kobj, struct qib_pportdata, diagc_kobj);
413 struct qib_ibport *qibp = &ppd->ibport_data;
415 long val = simple_strtol(buf, &endp, 0);
417 if (val < 0 || endp == buf)
420 *(u32 *)((char *) qibp + dattr->counter) = val;
424 static const struct sysfs_ops qib_diagc_ops = {
425 .show = diagc_attr_show,
426 .store = diagc_attr_store,
429 static struct kobj_type qib_diagc_ktype = {
430 .release = qib_port_release,
431 .sysfs_ops = &qib_diagc_ops,
432 .default_attrs = diagc_default_attributes
435 /* End diag_counters */
437 /* end of per-port file structures and support code */
440 * Start of per-unit (or driver, in some cases, but replicated
441 * per unit) functions (these get a device *)
443 static ssize_t show_rev(struct device *device, struct device_attribute *attr,
446 struct qib_ibdev *dev =
447 container_of(device, struct qib_ibdev, ibdev.dev);
449 return sprintf(buf, "%x\n", dd_from_dev(dev)->minrev);
452 static ssize_t show_hca(struct device *device, struct device_attribute *attr,
455 struct qib_ibdev *dev =
456 container_of(device, struct qib_ibdev, ibdev.dev);
457 struct qib_devdata *dd = dd_from_dev(dev);
463 ret = scnprintf(buf, PAGE_SIZE, "%s\n", dd->boardname);
467 static ssize_t show_version(struct device *device,
468 struct device_attribute *attr, char *buf)
470 /* The string printed here is already newline-terminated. */
471 return scnprintf(buf, PAGE_SIZE, "%s", (char *)ib_qib_version);
474 static ssize_t show_boardversion(struct device *device,
475 struct device_attribute *attr, char *buf)
477 struct qib_ibdev *dev =
478 container_of(device, struct qib_ibdev, ibdev.dev);
479 struct qib_devdata *dd = dd_from_dev(dev);
481 /* The string printed here is already newline-terminated. */
482 return scnprintf(buf, PAGE_SIZE, "%s", dd->boardversion);
486 static ssize_t show_localbus_info(struct device *device,
487 struct device_attribute *attr, char *buf)
489 struct qib_ibdev *dev =
490 container_of(device, struct qib_ibdev, ibdev.dev);
491 struct qib_devdata *dd = dd_from_dev(dev);
493 /* The string printed here is already newline-terminated. */
494 return scnprintf(buf, PAGE_SIZE, "%s", dd->lbus_info);
498 static ssize_t show_nctxts(struct device *device,
499 struct device_attribute *attr, char *buf)
501 struct qib_ibdev *dev =
502 container_of(device, struct qib_ibdev, ibdev.dev);
503 struct qib_devdata *dd = dd_from_dev(dev);
505 /* Return the number of user ports (contexts) available. */
506 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->cfgctxts -
507 dd->first_user_ctxt);
510 static ssize_t show_nfreectxts(struct device *device,
511 struct device_attribute *attr, char *buf)
513 struct qib_ibdev *dev =
514 container_of(device, struct qib_ibdev, ibdev.dev);
515 struct qib_devdata *dd = dd_from_dev(dev);
517 /* Return the number of free user ports (contexts) available. */
518 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->cfgctxts -
519 dd->first_user_ctxt - (u32)qib_stats.sps_ctxts);
522 static ssize_t show_serial(struct device *device,
523 struct device_attribute *attr, char *buf)
525 struct qib_ibdev *dev =
526 container_of(device, struct qib_ibdev, ibdev.dev);
527 struct qib_devdata *dd = dd_from_dev(dev);
529 buf[sizeof dd->serial] = '\0';
530 memcpy(buf, dd->serial, sizeof dd->serial);
535 static ssize_t store_chip_reset(struct device *device,
536 struct device_attribute *attr, const char *buf,
539 struct qib_ibdev *dev =
540 container_of(device, struct qib_ibdev, ibdev.dev);
541 struct qib_devdata *dd = dd_from_dev(dev);
544 if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) {
549 ret = qib_reset_device(dd->unit);
551 return ret < 0 ? ret : count;
554 static ssize_t show_logged_errs(struct device *device,
555 struct device_attribute *attr, char *buf)
557 struct qib_ibdev *dev =
558 container_of(device, struct qib_ibdev, ibdev.dev);
559 struct qib_devdata *dd = dd_from_dev(dev);
562 /* force consistency with actual EEPROM */
563 if (qib_update_eeprom_log(dd) != 0)
567 for (idx = 0; idx < QIB_EEP_LOG_CNT; ++idx) {
568 count += scnprintf(buf + count, PAGE_SIZE - count, "%d%c",
569 dd->eep_st_errs[idx],
570 idx == (QIB_EEP_LOG_CNT - 1) ? '\n' : ' ');
577 * Dump tempsense regs. in decimal, to ease shell-scripts.
579 static ssize_t show_tempsense(struct device *device,
580 struct device_attribute *attr, char *buf)
582 struct qib_ibdev *dev =
583 container_of(device, struct qib_ibdev, ibdev.dev);
584 struct qib_devdata *dd = dd_from_dev(dev);
590 for (idx = 0; idx < 8; ++idx) {
593 ret = dd->f_tempsense_rd(dd, idx);
599 ret = scnprintf(buf, PAGE_SIZE, "%d %d %02X %02X %d %d\n",
600 *(signed char *)(regvals),
601 *(signed char *)(regvals + 1),
602 regvals[2], regvals[3],
603 *(signed char *)(regvals + 5),
604 *(signed char *)(regvals + 7));
609 * end of per-unit (or driver, in some cases, but replicated
610 * per unit) functions
613 /* start of per-unit file structures and support code */
614 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
615 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
616 static DEVICE_ATTR(board_id, S_IRUGO, show_hca, NULL);
617 static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
618 static DEVICE_ATTR(nctxts, S_IRUGO, show_nctxts, NULL);
619 static DEVICE_ATTR(nfreectxts, S_IRUGO, show_nfreectxts, NULL);
620 static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
621 static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL);
622 static DEVICE_ATTR(logged_errors, S_IRUGO, show_logged_errs, NULL);
623 static DEVICE_ATTR(tempsense, S_IRUGO, show_tempsense, NULL);
624 static DEVICE_ATTR(localbus_info, S_IRUGO, show_localbus_info, NULL);
625 static DEVICE_ATTR(chip_reset, S_IWUSR, NULL, store_chip_reset);
627 static struct device_attribute *qib_attributes[] = {
633 &dev_attr_nfreectxts,
635 &dev_attr_boardversion,
636 &dev_attr_logged_errors,
638 &dev_attr_localbus_info,
639 &dev_attr_chip_reset,
642 int qib_create_port_files(struct ib_device *ibdev, u8 port_num,
643 struct kobject *kobj)
645 struct qib_pportdata *ppd;
646 struct qib_devdata *dd = dd_from_ibdev(ibdev);
649 if (!port_num || port_num > dd->num_pports) {
650 qib_dev_err(dd, "Skipping infiniband class with "
651 "invalid port %u\n", port_num);
655 ppd = &dd->pport[port_num - 1];
657 ret = kobject_init_and_add(&ppd->pport_kobj, &qib_port_ktype, kobj,
660 qib_dev_err(dd, "Skipping linkcontrol sysfs info, "
661 "(err %d) port %u\n", ret, port_num);
664 kobject_uevent(&ppd->pport_kobj, KOBJ_ADD);
666 ret = kobject_init_and_add(&ppd->sl2vl_kobj, &qib_sl2vl_ktype, kobj,
669 qib_dev_err(dd, "Skipping sl2vl sysfs info, "
670 "(err %d) port %u\n", ret, port_num);
673 kobject_uevent(&ppd->sl2vl_kobj, KOBJ_ADD);
675 ret = kobject_init_and_add(&ppd->diagc_kobj, &qib_diagc_ktype, kobj,
678 qib_dev_err(dd, "Skipping diag_counters sysfs info, "
679 "(err %d) port %u\n", ret, port_num);
682 kobject_uevent(&ppd->diagc_kobj, KOBJ_ADD);
687 kobject_put(&ppd->sl2vl_kobj);
689 kobject_put(&ppd->pport_kobj);
695 * Register and create our files in /sys/class/infiniband.
697 int qib_verbs_register_sysfs(struct qib_devdata *dd)
699 struct ib_device *dev = &dd->verbs_dev.ibdev;
702 for (i = 0; i < ARRAY_SIZE(qib_attributes); ++i) {
703 ret = device_create_file(&dev->dev, qib_attributes[i]);
712 * Unregister and remove our files in /sys/class/infiniband.
714 void qib_verbs_unregister_sysfs(struct qib_devdata *dd)
716 struct qib_pportdata *ppd;
719 for (i = 0; i < dd->num_pports; i++) {
721 kobject_put(&ppd->pport_kobj);
722 kobject_put(&ppd->sl2vl_kobj);