2 * Copyright (c) 2006 QLogic, Inc. 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
34 #include <linux/ctype.h>
35 #include <linux/pci.h>
37 #include "ipath_kernel.h"
38 #include "ipath_layer.h"
39 #include "ipath_common.h"
42 * ipath_parse_ushort - parse an unsigned short value in an arbitrary base
43 * @str: the string containing the number
44 * @valp: where to put the result
46 * returns the number of bytes consumed, or negative value on error
48 int ipath_parse_ushort(const char *str, unsigned short *valp)
54 if (!isdigit(str[0])) {
59 val = simple_strtoul(str, &end, 0);
76 static ssize_t show_version(struct device_driver *dev, char *buf)
78 /* The string printed here is already newline-terminated. */
79 return scnprintf(buf, PAGE_SIZE, "%s", ipath_core_version);
82 static ssize_t show_num_units(struct device_driver *dev, char *buf)
84 return scnprintf(buf, PAGE_SIZE, "%d\n",
85 ipath_count_units(NULL, NULL, NULL));
88 static ssize_t show_status(struct device *dev,
89 struct device_attribute *attr,
92 struct ipath_devdata *dd = dev_get_drvdata(dev);
95 if (!dd->ipath_statusp) {
100 ret = scnprintf(buf, PAGE_SIZE, "0x%llx\n",
101 (unsigned long long) *(dd->ipath_statusp));
107 static const char *ipath_status_str[] = {
117 "Fatal_Hardware_Error",
121 static ssize_t show_status_str(struct device *dev,
122 struct device_attribute *attr,
125 struct ipath_devdata *dd = dev_get_drvdata(dev);
130 if (!dd->ipath_statusp) {
135 s = *(dd->ipath_statusp);
137 for (any = i = 0; s && ipath_status_str[i]; i++) {
139 if (any && strlcat(buf, " ", PAGE_SIZE) >=
143 if (strlcat(buf, ipath_status_str[i],
144 PAGE_SIZE) >= PAGE_SIZE)
151 strlcat(buf, "\n", PAGE_SIZE);
159 static ssize_t show_boardversion(struct device *dev,
160 struct device_attribute *attr,
163 struct ipath_devdata *dd = dev_get_drvdata(dev);
164 /* The string printed here is already newline-terminated. */
165 return scnprintf(buf, PAGE_SIZE, "%s", dd->ipath_boardversion);
168 static ssize_t show_lid(struct device *dev,
169 struct device_attribute *attr,
172 struct ipath_devdata *dd = dev_get_drvdata(dev);
174 return scnprintf(buf, PAGE_SIZE, "0x%x\n", dd->ipath_lid);
177 static ssize_t store_lid(struct device *dev,
178 struct device_attribute *attr,
182 struct ipath_devdata *dd = dev_get_drvdata(dev);
186 ret = ipath_parse_ushort(buf, &lid);
190 if (lid == 0 || lid >= IPATH_MULTICAST_LID_BASE) {
195 ipath_set_lid(dd, lid, 0);
199 ipath_dev_err(dd, "attempt to set invalid LID 0x%x\n", lid);
204 static ssize_t show_mlid(struct device *dev,
205 struct device_attribute *attr,
208 struct ipath_devdata *dd = dev_get_drvdata(dev);
210 return scnprintf(buf, PAGE_SIZE, "0x%x\n", dd->ipath_mlid);
213 static ssize_t store_mlid(struct device *dev,
214 struct device_attribute *attr,
218 struct ipath_devdata *dd = dev_get_drvdata(dev);
223 ret = ipath_parse_ushort(buf, &mlid);
224 if (ret < 0 || mlid < IPATH_MULTICAST_LID_BASE)
227 unit = dd->ipath_unit;
229 dd->ipath_mlid = mlid;
230 ipath_layer_intr(dd, IPATH_LAYER_INT_BCAST);
234 ipath_dev_err(dd, "attempt to set invalid MLID\n");
239 static ssize_t show_guid(struct device *dev,
240 struct device_attribute *attr,
243 struct ipath_devdata *dd = dev_get_drvdata(dev);
246 guid = (u8 *) & (dd->ipath_guid);
248 return scnprintf(buf, PAGE_SIZE,
249 "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
250 guid[0], guid[1], guid[2], guid[3],
251 guid[4], guid[5], guid[6], guid[7]);
254 static ssize_t store_guid(struct device *dev,
255 struct device_attribute *attr,
259 struct ipath_devdata *dd = dev_get_drvdata(dev);
261 unsigned short guid[8];
266 if (sscanf(buf, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx",
267 &guid[0], &guid[1], &guid[2], &guid[3],
268 &guid[4], &guid[5], &guid[6], &guid[7]) != 8)
273 for (i = 0; i < 8; i++) {
279 dd->ipath_guid = nguid;
286 ipath_dev_err(dd, "attempt to set invalid GUID\n");
293 static ssize_t show_nguid(struct device *dev,
294 struct device_attribute *attr,
297 struct ipath_devdata *dd = dev_get_drvdata(dev);
299 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_nguid);
302 static ssize_t show_serial(struct device *dev,
303 struct device_attribute *attr,
306 struct ipath_devdata *dd = dev_get_drvdata(dev);
308 buf[sizeof dd->ipath_serial] = '\0';
309 memcpy(buf, dd->ipath_serial, sizeof dd->ipath_serial);
314 static ssize_t show_unit(struct device *dev,
315 struct device_attribute *attr,
318 struct ipath_devdata *dd = dev_get_drvdata(dev);
320 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_unit);
323 #define DEVICE_COUNTER(name, attr) \
324 static ssize_t show_counter_##name(struct device *dev, \
325 struct device_attribute *attr, \
328 struct ipath_devdata *dd = dev_get_drvdata(dev); \
330 buf, PAGE_SIZE, "%llu\n", (unsigned long long) \
332 dd, offsetof(struct infinipath_counters, \
333 attr) / sizeof(u64))); \
335 static DEVICE_ATTR(name, S_IRUGO, show_counter_##name, NULL);
337 DEVICE_COUNTER(ib_link_downeds, IBLinkDownedCnt);
338 DEVICE_COUNTER(ib_link_err_recoveries, IBLinkErrRecoveryCnt);
339 DEVICE_COUNTER(ib_status_changes, IBStatusChangeCnt);
340 DEVICE_COUNTER(ib_symbol_errs, IBSymbolErrCnt);
341 DEVICE_COUNTER(lb_flow_stalls, LBFlowStallCnt);
342 DEVICE_COUNTER(lb_ints, LBIntCnt);
343 DEVICE_COUNTER(rx_bad_formats, RxBadFormatCnt);
344 DEVICE_COUNTER(rx_buf_ovfls, RxBufOvflCnt);
345 DEVICE_COUNTER(rx_data_pkts, RxDataPktCnt);
346 DEVICE_COUNTER(rx_dropped_pkts, RxDroppedPktCnt);
347 DEVICE_COUNTER(rx_dwords, RxDwordCnt);
348 DEVICE_COUNTER(rx_ebps, RxEBPCnt);
349 DEVICE_COUNTER(rx_flow_ctrl_errs, RxFlowCtrlErrCnt);
350 DEVICE_COUNTER(rx_flow_pkts, RxFlowPktCnt);
351 DEVICE_COUNTER(rx_icrc_errs, RxICRCErrCnt);
352 DEVICE_COUNTER(rx_len_errs, RxLenErrCnt);
353 DEVICE_COUNTER(rx_link_problems, RxLinkProblemCnt);
354 DEVICE_COUNTER(rx_lpcrc_errs, RxLPCRCErrCnt);
355 DEVICE_COUNTER(rx_max_min_len_errs, RxMaxMinLenErrCnt);
356 DEVICE_COUNTER(rx_p0_hdr_egr_ovfls, RxP0HdrEgrOvflCnt);
357 DEVICE_COUNTER(rx_p1_hdr_egr_ovfls, RxP1HdrEgrOvflCnt);
358 DEVICE_COUNTER(rx_p2_hdr_egr_ovfls, RxP2HdrEgrOvflCnt);
359 DEVICE_COUNTER(rx_p3_hdr_egr_ovfls, RxP3HdrEgrOvflCnt);
360 DEVICE_COUNTER(rx_p4_hdr_egr_ovfls, RxP4HdrEgrOvflCnt);
361 DEVICE_COUNTER(rx_p5_hdr_egr_ovfls, RxP5HdrEgrOvflCnt);
362 DEVICE_COUNTER(rx_p6_hdr_egr_ovfls, RxP6HdrEgrOvflCnt);
363 DEVICE_COUNTER(rx_p7_hdr_egr_ovfls, RxP7HdrEgrOvflCnt);
364 DEVICE_COUNTER(rx_p8_hdr_egr_ovfls, RxP8HdrEgrOvflCnt);
365 DEVICE_COUNTER(rx_pkey_mismatches, RxPKeyMismatchCnt);
366 DEVICE_COUNTER(rx_tid_full_errs, RxTIDFullErrCnt);
367 DEVICE_COUNTER(rx_tid_valid_errs, RxTIDValidErrCnt);
368 DEVICE_COUNTER(rx_vcrc_errs, RxVCRCErrCnt);
369 DEVICE_COUNTER(tx_data_pkts, TxDataPktCnt);
370 DEVICE_COUNTER(tx_dropped_pkts, TxDroppedPktCnt);
371 DEVICE_COUNTER(tx_dwords, TxDwordCnt);
372 DEVICE_COUNTER(tx_flow_pkts, TxFlowPktCnt);
373 DEVICE_COUNTER(tx_flow_stalls, TxFlowStallCnt);
374 DEVICE_COUNTER(tx_len_errs, TxLenErrCnt);
375 DEVICE_COUNTER(tx_max_min_len_errs, TxMaxMinLenErrCnt);
376 DEVICE_COUNTER(tx_underruns, TxUnderrunCnt);
377 DEVICE_COUNTER(tx_unsup_vl_errs, TxUnsupVLErrCnt);
379 static struct attribute *dev_counter_attributes[] = {
380 &dev_attr_ib_link_downeds.attr,
381 &dev_attr_ib_link_err_recoveries.attr,
382 &dev_attr_ib_status_changes.attr,
383 &dev_attr_ib_symbol_errs.attr,
384 &dev_attr_lb_flow_stalls.attr,
385 &dev_attr_lb_ints.attr,
386 &dev_attr_rx_bad_formats.attr,
387 &dev_attr_rx_buf_ovfls.attr,
388 &dev_attr_rx_data_pkts.attr,
389 &dev_attr_rx_dropped_pkts.attr,
390 &dev_attr_rx_dwords.attr,
391 &dev_attr_rx_ebps.attr,
392 &dev_attr_rx_flow_ctrl_errs.attr,
393 &dev_attr_rx_flow_pkts.attr,
394 &dev_attr_rx_icrc_errs.attr,
395 &dev_attr_rx_len_errs.attr,
396 &dev_attr_rx_link_problems.attr,
397 &dev_attr_rx_lpcrc_errs.attr,
398 &dev_attr_rx_max_min_len_errs.attr,
399 &dev_attr_rx_p0_hdr_egr_ovfls.attr,
400 &dev_attr_rx_p1_hdr_egr_ovfls.attr,
401 &dev_attr_rx_p2_hdr_egr_ovfls.attr,
402 &dev_attr_rx_p3_hdr_egr_ovfls.attr,
403 &dev_attr_rx_p4_hdr_egr_ovfls.attr,
404 &dev_attr_rx_p5_hdr_egr_ovfls.attr,
405 &dev_attr_rx_p6_hdr_egr_ovfls.attr,
406 &dev_attr_rx_p7_hdr_egr_ovfls.attr,
407 &dev_attr_rx_p8_hdr_egr_ovfls.attr,
408 &dev_attr_rx_pkey_mismatches.attr,
409 &dev_attr_rx_tid_full_errs.attr,
410 &dev_attr_rx_tid_valid_errs.attr,
411 &dev_attr_rx_vcrc_errs.attr,
412 &dev_attr_tx_data_pkts.attr,
413 &dev_attr_tx_dropped_pkts.attr,
414 &dev_attr_tx_dwords.attr,
415 &dev_attr_tx_flow_pkts.attr,
416 &dev_attr_tx_flow_stalls.attr,
417 &dev_attr_tx_len_errs.attr,
418 &dev_attr_tx_max_min_len_errs.attr,
419 &dev_attr_tx_underruns.attr,
420 &dev_attr_tx_unsup_vl_errs.attr,
424 static struct attribute_group dev_counter_attr_group = {
426 .attrs = dev_counter_attributes
429 static ssize_t store_reset(struct device *dev,
430 struct device_attribute *attr,
434 struct ipath_devdata *dd = dev_get_drvdata(dev);
437 if (count < 5 || memcmp(buf, "reset", 5)) {
442 if (dd->ipath_flags & IPATH_DISABLED) {
444 * post-reset init would re-enable interrupts, etc.
445 * so don't allow reset on disabled devices. Not
446 * perfect error, but about the best choice.
448 dev_info(dev,"Unit %d is disabled, can't reset\n",
452 ret = ipath_reset_device(dd->ipath_unit);
454 return ret<0 ? ret : count;
457 static ssize_t store_link_state(struct device *dev,
458 struct device_attribute *attr,
462 struct ipath_devdata *dd = dev_get_drvdata(dev);
466 ret = ipath_parse_ushort(buf, &state);
470 r = ipath_layer_set_linkstate(dd, state);
478 ipath_dev_err(dd, "attempt to set invalid link state\n");
483 static ssize_t show_mtu(struct device *dev,
484 struct device_attribute *attr,
487 struct ipath_devdata *dd = dev_get_drvdata(dev);
488 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_ibmtu);
491 static ssize_t store_mtu(struct device *dev,
492 struct device_attribute *attr,
496 struct ipath_devdata *dd = dev_get_drvdata(dev);
501 ret = ipath_parse_ushort(buf, &mtu);
505 r = ipath_layer_set_mtu(dd, mtu);
511 ipath_dev_err(dd, "attempt to set invalid MTU\n");
516 static ssize_t show_enabled(struct device *dev,
517 struct device_attribute *attr,
520 struct ipath_devdata *dd = dev_get_drvdata(dev);
521 return scnprintf(buf, PAGE_SIZE, "%u\n",
522 (dd->ipath_flags & IPATH_DISABLED) ? 0 : 1);
525 static ssize_t store_enabled(struct device *dev,
526 struct device_attribute *attr,
530 struct ipath_devdata *dd = dev_get_drvdata(dev);
534 ret = ipath_parse_ushort(buf, &enable);
536 ipath_dev_err(dd, "attempt to use non-numeric on enable\n");
541 if (!(dd->ipath_flags & IPATH_DISABLED))
544 dev_info(dev, "Enabling unit %d\n", dd->ipath_unit);
545 /* same as post-reset */
546 ret = ipath_init_chip(dd, 1);
548 ipath_dev_err(dd, "Failed to enable unit %d\n",
551 dd->ipath_flags &= ~IPATH_DISABLED;
552 *dd->ipath_statusp &= ~IPATH_STATUS_ADMIN_DISABLED;
555 else if (!(dd->ipath_flags & IPATH_DISABLED)) {
556 dev_info(dev, "Disabling unit %d\n", dd->ipath_unit);
557 ipath_shutdown_device(dd);
558 dd->ipath_flags |= IPATH_DISABLED;
559 *dd->ipath_statusp |= IPATH_STATUS_ADMIN_DISABLED;
566 static DRIVER_ATTR(num_units, S_IRUGO, show_num_units, NULL);
567 static DRIVER_ATTR(version, S_IRUGO, show_version, NULL);
569 static struct attribute *driver_attributes[] = {
570 &driver_attr_num_units.attr,
571 &driver_attr_version.attr,
575 static struct attribute_group driver_attr_group = {
576 .attrs = driver_attributes
579 static DEVICE_ATTR(guid, S_IWUSR | S_IRUGO, show_guid, store_guid);
580 static DEVICE_ATTR(lid, S_IWUSR | S_IRUGO, show_lid, store_lid);
581 static DEVICE_ATTR(link_state, S_IWUSR, NULL, store_link_state);
582 static DEVICE_ATTR(mlid, S_IWUSR | S_IRUGO, show_mlid, store_mlid);
583 static DEVICE_ATTR(mtu, S_IWUSR | S_IRUGO, show_mtu, store_mtu);
584 static DEVICE_ATTR(enabled, S_IWUSR | S_IRUGO, show_enabled, store_enabled);
585 static DEVICE_ATTR(nguid, S_IRUGO, show_nguid, NULL);
586 static DEVICE_ATTR(reset, S_IWUSR, NULL, store_reset);
587 static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
588 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
589 static DEVICE_ATTR(status_str, S_IRUGO, show_status_str, NULL);
590 static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL);
591 static DEVICE_ATTR(unit, S_IRUGO, show_unit, NULL);
593 static struct attribute *dev_attributes[] = {
596 &dev_attr_link_state.attr,
599 &dev_attr_nguid.attr,
600 &dev_attr_serial.attr,
601 &dev_attr_status.attr,
602 &dev_attr_status_str.attr,
603 &dev_attr_boardversion.attr,
605 &dev_attr_enabled.attr,
609 static struct attribute_group dev_attr_group = {
610 .attrs = dev_attributes
614 * ipath_expose_reset - create a device reset file
615 * @dev: the device structure
617 * Only expose a file that lets us reset the device after someone
618 * enters diag mode. A device reset is quite likely to crash the
619 * machine entirely, so we don't want to normally make it
622 * Called with ipath_mutex held.
624 int ipath_expose_reset(struct device *dev)
630 ret = device_create_file(dev, &dev_attr_reset);
639 int ipath_driver_create_group(struct device_driver *drv)
643 ret = sysfs_create_group(&drv->kobj, &driver_attr_group);
648 void ipath_driver_remove_group(struct device_driver *drv)
650 sysfs_remove_group(&drv->kobj, &driver_attr_group);
653 int ipath_device_create_group(struct device *dev, struct ipath_devdata *dd)
658 ret = sysfs_create_group(&dev->kobj, &dev_attr_group);
662 ret = sysfs_create_group(&dev->kobj, &dev_counter_attr_group);
666 snprintf(unit, sizeof(unit), "%02d", dd->ipath_unit);
667 ret = sysfs_create_link(&dev->driver->kobj, &dev->kobj, unit);
671 sysfs_remove_group(&dev->kobj, &dev_counter_attr_group);
673 sysfs_remove_group(&dev->kobj, &dev_attr_group);
678 void ipath_device_remove_group(struct device *dev, struct ipath_devdata *dd)
682 snprintf(unit, sizeof(unit), "%02d", dd->ipath_unit);
683 sysfs_remove_link(&dev->driver->kobj, unit);
685 sysfs_remove_group(&dev->kobj, &dev_counter_attr_group);
686 sysfs_remove_group(&dev->kobj, &dev_attr_group);
688 device_remove_file(dev, &dev_attr_reset);