2 * Copyright (c) 2012 Intel Corporation. All rights reserved.
3 * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved.
4 * Copyright (c) 2006 PathScale, Inc. All rights reserved.
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:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
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.
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
34 #include <linux/ctype.h>
39 /* start of per-port functions */
41 * Get/Set heartbeat enable. OR of 1=enabled, 2=auto
43 static ssize_t show_hrtbt_enb(struct qib_pportdata *ppd, char *buf)
45 struct qib_devdata *dd = ppd->dd;
48 ret = dd->f_get_ib_cfg(ppd, QIB_IB_CFG_HRTBT);
49 ret = scnprintf(buf, PAGE_SIZE, "%d\n", ret);
53 static ssize_t store_hrtbt_enb(struct qib_pportdata *ppd, const char *buf,
56 struct qib_devdata *dd = ppd->dd;
60 ret = kstrtou16(buf, 0, &val);
62 qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n");
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
73 ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val);
74 return ret < 0 ? ret : count;
77 static ssize_t store_loopback(struct qib_pportdata *ppd, const char *buf,
80 struct qib_devdata *dd = ppd->dd;
83 r = dd->f_set_ib_loopback(ppd, buf);
90 static ssize_t store_led_override(struct qib_pportdata *ppd, const char *buf,
93 struct qib_devdata *dd = ppd->dd;
97 ret = kstrtou16(buf, 0, &val);
99 qib_dev_err(dd, "attempt to set invalid LED override\n");
103 qib_set_led_override(ppd, val);
107 static ssize_t show_status(struct qib_pportdata *ppd, char *buf)
114 ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n",
115 (unsigned long long) *(ppd->statusp));
120 * For userland compatibility, these offsets must remain fixed.
121 * They are strings for QIB_STATUS_*
123 static const char * const qib_status_str[] = {
133 "Fatal_Hardware_Error",
137 static ssize_t show_status_str(struct qib_pportdata *ppd, char *buf)
150 for (any = i = 0; s && qib_status_str[i]; i++) {
153 if (any && strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE)
155 if (strlcat(buf, qib_status_str[i], PAGE_SIZE) >=
163 strlcat(buf, "\n", PAGE_SIZE);
171 /* end of per-port functions */
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.
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)
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);
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,
192 QIB_PORT_ATTR(status, S_IRUGO, show_status, NULL);
193 QIB_PORT_ATTR(status_str, S_IRUGO, show_status_str, NULL);
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,
205 * Start of per-port congestion control structures and support code
209 * Congestion control table size followed by table entries
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)
216 struct qib_pportdata *ppd =
217 container_of(kobj, struct qib_pportdata, pport_cc_kobj);
219 if (!qib_cc_table_size || !ppd->ccti_entries_shadow)
222 ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow)
228 if (count > ret - pos)
234 spin_lock(&ppd->cc_shadow_lock);
235 memcpy(buf, ppd->ccti_entries_shadow, count);
236 spin_unlock(&ppd->cc_shadow_lock);
241 static void qib_port_release(struct kobject *kobj)
243 /* nothing to do since memory is freed by qib_free_devdata() */
246 static struct kobj_type qib_port_cc_ktype = {
247 .release = qib_port_release,
250 static struct bin_attribute cc_table_bin_attr = {
251 .attr = {.name = "cc_table_bin", .mode = 0444},
252 .read = read_cc_table_bin,
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.
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)
266 struct qib_pportdata *ppd =
267 container_of(kobj, struct qib_pportdata, pport_cc_kobj);
269 if (!qib_cc_table_size || !ppd->congestion_entries_shadow)
272 ret = sizeof(struct ib_cc_congestion_setting_attr_shadow);
276 if (count > ret - pos)
282 spin_lock(&ppd->cc_shadow_lock);
283 memcpy(buf, ppd->congestion_entries_shadow, count);
284 spin_unlock(&ppd->cc_shadow_lock);
289 static struct bin_attribute cc_setting_bin_attr = {
290 .attr = {.name = "cc_settings_bin", .mode = 0444},
291 .read = read_cc_setting_bin,
296 static ssize_t qib_portattr_show(struct kobject *kobj,
297 struct attribute *attr, char *buf)
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);
307 return pattr->show(ppd, buf);
310 static ssize_t qib_portattr_store(struct kobject *kobj,
311 struct attribute *attr, const char *buf, size_t len)
313 struct qib_port_attr *pattr =
314 container_of(attr, struct qib_port_attr, attr);
315 struct qib_pportdata *ppd =
316 container_of(kobj, struct qib_pportdata, pport_kobj);
321 return pattr->store(ppd, buf, len);
325 static const struct sysfs_ops qib_port_ops = {
326 .show = qib_portattr_show,
327 .store = qib_portattr_store,
330 static struct kobj_type qib_port_ktype = {
331 .release = qib_port_release,
332 .sysfs_ops = &qib_port_ops,
333 .default_attrs = port_default_attributes
338 #define QIB_SL2VL_ATTR(N) \
339 static struct qib_sl2vl_attr qib_sl2vl_attr_##N = { \
340 .attr = { .name = __stringify(N), .mode = 0444 }, \
344 struct qib_sl2vl_attr {
345 struct attribute attr;
366 static struct attribute *sl2vl_default_attributes[] = {
367 &qib_sl2vl_attr_0.attr,
368 &qib_sl2vl_attr_1.attr,
369 &qib_sl2vl_attr_2.attr,
370 &qib_sl2vl_attr_3.attr,
371 &qib_sl2vl_attr_4.attr,
372 &qib_sl2vl_attr_5.attr,
373 &qib_sl2vl_attr_6.attr,
374 &qib_sl2vl_attr_7.attr,
375 &qib_sl2vl_attr_8.attr,
376 &qib_sl2vl_attr_9.attr,
377 &qib_sl2vl_attr_10.attr,
378 &qib_sl2vl_attr_11.attr,
379 &qib_sl2vl_attr_12.attr,
380 &qib_sl2vl_attr_13.attr,
381 &qib_sl2vl_attr_14.attr,
382 &qib_sl2vl_attr_15.attr,
386 static ssize_t sl2vl_attr_show(struct kobject *kobj, struct attribute *attr,
389 struct qib_sl2vl_attr *sattr =
390 container_of(attr, struct qib_sl2vl_attr, attr);
391 struct qib_pportdata *ppd =
392 container_of(kobj, struct qib_pportdata, sl2vl_kobj);
393 struct qib_ibport *qibp = &ppd->ibport_data;
395 return sprintf(buf, "%u\n", qibp->sl_to_vl[sattr->sl]);
398 static const struct sysfs_ops qib_sl2vl_ops = {
399 .show = sl2vl_attr_show,
402 static struct kobj_type qib_sl2vl_ktype = {
403 .release = qib_port_release,
404 .sysfs_ops = &qib_sl2vl_ops,
405 .default_attrs = sl2vl_default_attributes
410 /* Start diag_counters */
412 #define QIB_DIAGC_ATTR(N) \
413 static struct qib_diagc_attr qib_diagc_attr_##N = { \
414 .attr = { .name = __stringify(N), .mode = 0664 }, \
415 .counter = offsetof(struct qib_ibport, n_##N) \
418 struct qib_diagc_attr {
419 struct attribute attr;
423 QIB_DIAGC_ATTR(rc_resends);
424 QIB_DIAGC_ATTR(rc_acks);
425 QIB_DIAGC_ATTR(rc_qacks);
426 QIB_DIAGC_ATTR(rc_delayed_comp);
427 QIB_DIAGC_ATTR(seq_naks);
428 QIB_DIAGC_ATTR(rdma_seq);
429 QIB_DIAGC_ATTR(rnr_naks);
430 QIB_DIAGC_ATTR(other_naks);
431 QIB_DIAGC_ATTR(rc_timeouts);
432 QIB_DIAGC_ATTR(loop_pkts);
433 QIB_DIAGC_ATTR(pkt_drops);
434 QIB_DIAGC_ATTR(dmawait);
435 QIB_DIAGC_ATTR(unaligned);
436 QIB_DIAGC_ATTR(rc_dupreq);
437 QIB_DIAGC_ATTR(rc_seqnak);
439 static struct attribute *diagc_default_attributes[] = {
440 &qib_diagc_attr_rc_resends.attr,
441 &qib_diagc_attr_rc_acks.attr,
442 &qib_diagc_attr_rc_qacks.attr,
443 &qib_diagc_attr_rc_delayed_comp.attr,
444 &qib_diagc_attr_seq_naks.attr,
445 &qib_diagc_attr_rdma_seq.attr,
446 &qib_diagc_attr_rnr_naks.attr,
447 &qib_diagc_attr_other_naks.attr,
448 &qib_diagc_attr_rc_timeouts.attr,
449 &qib_diagc_attr_loop_pkts.attr,
450 &qib_diagc_attr_pkt_drops.attr,
451 &qib_diagc_attr_dmawait.attr,
452 &qib_diagc_attr_unaligned.attr,
453 &qib_diagc_attr_rc_dupreq.attr,
454 &qib_diagc_attr_rc_seqnak.attr,
458 static ssize_t diagc_attr_show(struct kobject *kobj, struct attribute *attr,
461 struct qib_diagc_attr *dattr =
462 container_of(attr, struct qib_diagc_attr, attr);
463 struct qib_pportdata *ppd =
464 container_of(kobj, struct qib_pportdata, diagc_kobj);
465 struct qib_ibport *qibp = &ppd->ibport_data;
467 return sprintf(buf, "%u\n", *(u32 *)((char *)qibp + dattr->counter));
470 static ssize_t diagc_attr_store(struct kobject *kobj, struct attribute *attr,
471 const char *buf, size_t size)
473 struct qib_diagc_attr *dattr =
474 container_of(attr, struct qib_diagc_attr, attr);
475 struct qib_pportdata *ppd =
476 container_of(kobj, struct qib_pportdata, diagc_kobj);
477 struct qib_ibport *qibp = &ppd->ibport_data;
481 ret = kstrtou32(buf, 0, &val);
484 *(u32 *)((char *) qibp + dattr->counter) = val;
488 static const struct sysfs_ops qib_diagc_ops = {
489 .show = diagc_attr_show,
490 .store = diagc_attr_store,
493 static struct kobj_type qib_diagc_ktype = {
494 .release = qib_port_release,
495 .sysfs_ops = &qib_diagc_ops,
496 .default_attrs = diagc_default_attributes
499 /* End diag_counters */
501 /* end of per-port file structures and support code */
504 * Start of per-unit (or driver, in some cases, but replicated
505 * per unit) functions (these get a device *)
507 static ssize_t show_rev(struct device *device, struct device_attribute *attr,
510 struct qib_ibdev *dev =
511 container_of(device, struct qib_ibdev, ibdev.dev);
513 return sprintf(buf, "%x\n", dd_from_dev(dev)->minrev);
516 static ssize_t show_hca(struct device *device, struct device_attribute *attr,
519 struct qib_ibdev *dev =
520 container_of(device, struct qib_ibdev, ibdev.dev);
521 struct qib_devdata *dd = dd_from_dev(dev);
527 ret = scnprintf(buf, PAGE_SIZE, "%s\n", dd->boardname);
531 static ssize_t show_version(struct device *device,
532 struct device_attribute *attr, char *buf)
534 /* The string printed here is already newline-terminated. */
535 return scnprintf(buf, PAGE_SIZE, "%s", (char *)ib_qib_version);
538 static ssize_t show_boardversion(struct device *device,
539 struct device_attribute *attr, char *buf)
541 struct qib_ibdev *dev =
542 container_of(device, struct qib_ibdev, ibdev.dev);
543 struct qib_devdata *dd = dd_from_dev(dev);
545 /* The string printed here is already newline-terminated. */
546 return scnprintf(buf, PAGE_SIZE, "%s", dd->boardversion);
550 static ssize_t show_localbus_info(struct device *device,
551 struct device_attribute *attr, char *buf)
553 struct qib_ibdev *dev =
554 container_of(device, struct qib_ibdev, ibdev.dev);
555 struct qib_devdata *dd = dd_from_dev(dev);
557 /* The string printed here is already newline-terminated. */
558 return scnprintf(buf, PAGE_SIZE, "%s", dd->lbus_info);
562 static ssize_t show_nctxts(struct device *device,
563 struct device_attribute *attr, char *buf)
565 struct qib_ibdev *dev =
566 container_of(device, struct qib_ibdev, ibdev.dev);
567 struct qib_devdata *dd = dd_from_dev(dev);
569 /* Return the number of user ports (contexts) available. */
570 /* The calculation below deals with a special case where
571 * cfgctxts is set to 1 on a single-port board. */
572 return scnprintf(buf, PAGE_SIZE, "%u\n",
573 (dd->first_user_ctxt > dd->cfgctxts) ? 0 :
574 (dd->cfgctxts - dd->first_user_ctxt));
577 static ssize_t show_nfreectxts(struct device *device,
578 struct device_attribute *attr, char *buf)
580 struct qib_ibdev *dev =
581 container_of(device, struct qib_ibdev, ibdev.dev);
582 struct qib_devdata *dd = dd_from_dev(dev);
584 /* Return the number of free user ports (contexts) available. */
585 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->freectxts);
588 static ssize_t show_serial(struct device *device,
589 struct device_attribute *attr, char *buf)
591 struct qib_ibdev *dev =
592 container_of(device, struct qib_ibdev, ibdev.dev);
593 struct qib_devdata *dd = dd_from_dev(dev);
595 buf[sizeof(dd->serial)] = '\0';
596 memcpy(buf, dd->serial, sizeof(dd->serial));
601 static ssize_t store_chip_reset(struct device *device,
602 struct device_attribute *attr, const char *buf,
605 struct qib_ibdev *dev =
606 container_of(device, struct qib_ibdev, ibdev.dev);
607 struct qib_devdata *dd = dd_from_dev(dev);
610 if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) {
615 ret = qib_reset_device(dd->unit);
617 return ret < 0 ? ret : count;
621 * Dump tempsense regs. in decimal, to ease shell-scripts.
623 static ssize_t show_tempsense(struct device *device,
624 struct device_attribute *attr, char *buf)
626 struct qib_ibdev *dev =
627 container_of(device, struct qib_ibdev, ibdev.dev);
628 struct qib_devdata *dd = dd_from_dev(dev);
634 for (idx = 0; idx < 8; ++idx) {
637 ret = dd->f_tempsense_rd(dd, idx);
643 ret = scnprintf(buf, PAGE_SIZE, "%d %d %02X %02X %d %d\n",
644 *(signed char *)(regvals),
645 *(signed char *)(regvals + 1),
646 regvals[2], regvals[3],
647 *(signed char *)(regvals + 5),
648 *(signed char *)(regvals + 7));
653 * end of per-unit (or driver, in some cases, but replicated
654 * per unit) functions
657 /* start of per-unit file structures and support code */
658 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
659 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
660 static DEVICE_ATTR(board_id, S_IRUGO, show_hca, NULL);
661 static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
662 static DEVICE_ATTR(nctxts, S_IRUGO, show_nctxts, NULL);
663 static DEVICE_ATTR(nfreectxts, S_IRUGO, show_nfreectxts, NULL);
664 static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
665 static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL);
666 static DEVICE_ATTR(tempsense, S_IRUGO, show_tempsense, NULL);
667 static DEVICE_ATTR(localbus_info, S_IRUGO, show_localbus_info, NULL);
668 static DEVICE_ATTR(chip_reset, S_IWUSR, NULL, store_chip_reset);
670 static struct device_attribute *qib_attributes[] = {
676 &dev_attr_nfreectxts,
678 &dev_attr_boardversion,
680 &dev_attr_localbus_info,
681 &dev_attr_chip_reset,
684 int qib_create_port_files(struct ib_device *ibdev, u8 port_num,
685 struct kobject *kobj)
687 struct qib_pportdata *ppd;
688 struct qib_devdata *dd = dd_from_ibdev(ibdev);
691 if (!port_num || port_num > dd->num_pports) {
693 "Skipping infiniband class with invalid port %u\n",
698 ppd = &dd->pport[port_num - 1];
700 ret = kobject_init_and_add(&ppd->pport_kobj, &qib_port_ktype, kobj,
704 "Skipping linkcontrol sysfs info, (err %d) port %u\n",
708 kobject_uevent(&ppd->pport_kobj, KOBJ_ADD);
710 ret = kobject_init_and_add(&ppd->sl2vl_kobj, &qib_sl2vl_ktype, kobj,
714 "Skipping sl2vl sysfs info, (err %d) port %u\n",
718 kobject_uevent(&ppd->sl2vl_kobj, KOBJ_ADD);
720 ret = kobject_init_and_add(&ppd->diagc_kobj, &qib_diagc_ktype, kobj,
724 "Skipping diag_counters sysfs info, (err %d) port %u\n",
728 kobject_uevent(&ppd->diagc_kobj, KOBJ_ADD);
730 if (!qib_cc_table_size || !ppd->congestion_entries_shadow)
733 ret = kobject_init_and_add(&ppd->pport_cc_kobj, &qib_port_cc_ktype,
737 "Skipping Congestion Control sysfs info, (err %d) port %u\n",
742 kobject_uevent(&ppd->pport_cc_kobj, KOBJ_ADD);
744 ret = sysfs_create_bin_file(&ppd->pport_cc_kobj,
745 &cc_setting_bin_attr);
748 "Skipping Congestion Control setting sysfs info, (err %d) port %u\n",
753 ret = sysfs_create_bin_file(&ppd->pport_cc_kobj,
757 "Skipping Congestion Control table sysfs info, (err %d) port %u\n",
759 goto bail_cc_entry_bin;
762 qib_devinfo(dd->pcidev,
763 "IB%u: Congestion Control Agent enabled for port %d\n",
769 sysfs_remove_bin_file(&ppd->pport_cc_kobj, &cc_setting_bin_attr);
771 kobject_put(&ppd->pport_cc_kobj);
773 kobject_put(&ppd->diagc_kobj);
775 kobject_put(&ppd->sl2vl_kobj);
777 kobject_put(&ppd->pport_kobj);
783 * Register and create our files in /sys/class/infiniband.
785 int qib_verbs_register_sysfs(struct qib_devdata *dd)
787 struct ib_device *dev = &dd->verbs_dev.ibdev;
790 for (i = 0; i < ARRAY_SIZE(qib_attributes); ++i) {
791 ret = device_create_file(&dev->dev, qib_attributes[i]);
798 for (i = 0; i < ARRAY_SIZE(qib_attributes); ++i)
799 device_remove_file(&dev->dev, qib_attributes[i]);
804 * Unregister and remove our files in /sys/class/infiniband.
806 void qib_verbs_unregister_sysfs(struct qib_devdata *dd)
808 struct qib_pportdata *ppd;
811 for (i = 0; i < dd->num_pports; i++) {
813 if (qib_cc_table_size &&
814 ppd->congestion_entries_shadow) {
815 sysfs_remove_bin_file(&ppd->pport_cc_kobj,
816 &cc_setting_bin_attr);
817 sysfs_remove_bin_file(&ppd->pport_cc_kobj,
819 kobject_put(&ppd->pport_cc_kobj);
821 kobject_put(&ppd->diagc_kobj);
822 kobject_put(&ppd->sl2vl_kobj);
823 kobject_put(&ppd->pport_kobj);