1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47#include <linux/ctype.h>
48
49#include "hfi.h"
50#include "mad.h"
51#include "trace.h"
52
53
54
55
56
57
58
59
60static ssize_t read_cc_table_bin(struct file *filp, struct kobject *kobj,
61 struct bin_attribute *bin_attr,
62 char *buf, loff_t pos, size_t count)
63{
64 int ret;
65 struct hfi1_pportdata *ppd =
66 container_of(kobj, struct hfi1_pportdata, pport_cc_kobj);
67 struct cc_state *cc_state;
68
69 ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow)
70 + sizeof(__be16);
71
72 if (pos > ret)
73 return -EINVAL;
74
75 if (count > ret - pos)
76 count = ret - pos;
77
78 if (!count)
79 return count;
80
81 rcu_read_lock();
82 cc_state = get_cc_state(ppd);
83 if (!cc_state) {
84 rcu_read_unlock();
85 return -EINVAL;
86 }
87 memcpy(buf, (void *)&cc_state->cct + pos, count);
88 rcu_read_unlock();
89
90 return count;
91}
92
93static void port_release(struct kobject *kobj)
94{
95
96}
97
98static struct bin_attribute cc_table_bin_attr = {
99 .attr = {.name = "cc_table_bin", .mode = 0444},
100 .read = read_cc_table_bin,
101 .size = PAGE_SIZE,
102};
103
104
105
106
107
108
109static ssize_t read_cc_setting_bin(struct file *filp, struct kobject *kobj,
110 struct bin_attribute *bin_attr,
111 char *buf, loff_t pos, size_t count)
112{
113 int ret;
114 struct hfi1_pportdata *ppd =
115 container_of(kobj, struct hfi1_pportdata, pport_cc_kobj);
116 struct cc_state *cc_state;
117
118 ret = sizeof(struct opa_congestion_setting_attr_shadow);
119
120 if (pos > ret)
121 return -EINVAL;
122 if (count > ret - pos)
123 count = ret - pos;
124
125 if (!count)
126 return count;
127
128 rcu_read_lock();
129 cc_state = get_cc_state(ppd);
130 if (!cc_state) {
131 rcu_read_unlock();
132 return -EINVAL;
133 }
134 memcpy(buf, (void *)&cc_state->cong_setting + pos, count);
135 rcu_read_unlock();
136
137 return count;
138}
139
140static struct bin_attribute cc_setting_bin_attr = {
141 .attr = {.name = "cc_settings_bin", .mode = 0444},
142 .read = read_cc_setting_bin,
143 .size = PAGE_SIZE,
144};
145
146struct hfi1_port_attr {
147 struct attribute attr;
148 ssize_t (*show)(struct hfi1_pportdata *, char *);
149 ssize_t (*store)(struct hfi1_pportdata *, const char *, size_t);
150};
151
152static ssize_t cc_prescan_show(struct hfi1_pportdata *ppd, char *buf)
153{
154 return sprintf(buf, "%s\n", ppd->cc_prescan ? "on" : "off");
155}
156
157static ssize_t cc_prescan_store(struct hfi1_pportdata *ppd, const char *buf,
158 size_t count)
159{
160 if (!memcmp(buf, "on", 2))
161 ppd->cc_prescan = true;
162 else if (!memcmp(buf, "off", 3))
163 ppd->cc_prescan = false;
164
165 return count;
166}
167
168static struct hfi1_port_attr cc_prescan_attr =
169 __ATTR(cc_prescan, 0600, cc_prescan_show, cc_prescan_store);
170
171static ssize_t cc_attr_show(struct kobject *kobj, struct attribute *attr,
172 char *buf)
173{
174 struct hfi1_port_attr *port_attr =
175 container_of(attr, struct hfi1_port_attr, attr);
176 struct hfi1_pportdata *ppd =
177 container_of(kobj, struct hfi1_pportdata, pport_cc_kobj);
178
179 return port_attr->show(ppd, buf);
180}
181
182static ssize_t cc_attr_store(struct kobject *kobj, struct attribute *attr,
183 const char *buf, size_t count)
184{
185 struct hfi1_port_attr *port_attr =
186 container_of(attr, struct hfi1_port_attr, attr);
187 struct hfi1_pportdata *ppd =
188 container_of(kobj, struct hfi1_pportdata, pport_cc_kobj);
189
190 return port_attr->store(ppd, buf, count);
191}
192
193static const struct sysfs_ops port_cc_sysfs_ops = {
194 .show = cc_attr_show,
195 .store = cc_attr_store
196};
197
198static struct attribute *port_cc_default_attributes[] = {
199 &cc_prescan_attr.attr
200};
201
202static struct kobj_type port_cc_ktype = {
203 .release = port_release,
204 .sysfs_ops = &port_cc_sysfs_ops,
205 .default_attrs = port_cc_default_attributes
206};
207
208
209#define HFI1_SC2VL_ATTR(N) \
210 static struct hfi1_sc2vl_attr hfi1_sc2vl_attr_##N = { \
211 .attr = { .name = __stringify(N), .mode = 0444 }, \
212 .sc = N \
213 }
214
215struct hfi1_sc2vl_attr {
216 struct attribute attr;
217 int sc;
218};
219
220HFI1_SC2VL_ATTR(0);
221HFI1_SC2VL_ATTR(1);
222HFI1_SC2VL_ATTR(2);
223HFI1_SC2VL_ATTR(3);
224HFI1_SC2VL_ATTR(4);
225HFI1_SC2VL_ATTR(5);
226HFI1_SC2VL_ATTR(6);
227HFI1_SC2VL_ATTR(7);
228HFI1_SC2VL_ATTR(8);
229HFI1_SC2VL_ATTR(9);
230HFI1_SC2VL_ATTR(10);
231HFI1_SC2VL_ATTR(11);
232HFI1_SC2VL_ATTR(12);
233HFI1_SC2VL_ATTR(13);
234HFI1_SC2VL_ATTR(14);
235HFI1_SC2VL_ATTR(15);
236HFI1_SC2VL_ATTR(16);
237HFI1_SC2VL_ATTR(17);
238HFI1_SC2VL_ATTR(18);
239HFI1_SC2VL_ATTR(19);
240HFI1_SC2VL_ATTR(20);
241HFI1_SC2VL_ATTR(21);
242HFI1_SC2VL_ATTR(22);
243HFI1_SC2VL_ATTR(23);
244HFI1_SC2VL_ATTR(24);
245HFI1_SC2VL_ATTR(25);
246HFI1_SC2VL_ATTR(26);
247HFI1_SC2VL_ATTR(27);
248HFI1_SC2VL_ATTR(28);
249HFI1_SC2VL_ATTR(29);
250HFI1_SC2VL_ATTR(30);
251HFI1_SC2VL_ATTR(31);
252
253static struct attribute *sc2vl_default_attributes[] = {
254 &hfi1_sc2vl_attr_0.attr,
255 &hfi1_sc2vl_attr_1.attr,
256 &hfi1_sc2vl_attr_2.attr,
257 &hfi1_sc2vl_attr_3.attr,
258 &hfi1_sc2vl_attr_4.attr,
259 &hfi1_sc2vl_attr_5.attr,
260 &hfi1_sc2vl_attr_6.attr,
261 &hfi1_sc2vl_attr_7.attr,
262 &hfi1_sc2vl_attr_8.attr,
263 &hfi1_sc2vl_attr_9.attr,
264 &hfi1_sc2vl_attr_10.attr,
265 &hfi1_sc2vl_attr_11.attr,
266 &hfi1_sc2vl_attr_12.attr,
267 &hfi1_sc2vl_attr_13.attr,
268 &hfi1_sc2vl_attr_14.attr,
269 &hfi1_sc2vl_attr_15.attr,
270 &hfi1_sc2vl_attr_16.attr,
271 &hfi1_sc2vl_attr_17.attr,
272 &hfi1_sc2vl_attr_18.attr,
273 &hfi1_sc2vl_attr_19.attr,
274 &hfi1_sc2vl_attr_20.attr,
275 &hfi1_sc2vl_attr_21.attr,
276 &hfi1_sc2vl_attr_22.attr,
277 &hfi1_sc2vl_attr_23.attr,
278 &hfi1_sc2vl_attr_24.attr,
279 &hfi1_sc2vl_attr_25.attr,
280 &hfi1_sc2vl_attr_26.attr,
281 &hfi1_sc2vl_attr_27.attr,
282 &hfi1_sc2vl_attr_28.attr,
283 &hfi1_sc2vl_attr_29.attr,
284 &hfi1_sc2vl_attr_30.attr,
285 &hfi1_sc2vl_attr_31.attr,
286 NULL
287};
288
289static ssize_t sc2vl_attr_show(struct kobject *kobj, struct attribute *attr,
290 char *buf)
291{
292 struct hfi1_sc2vl_attr *sattr =
293 container_of(attr, struct hfi1_sc2vl_attr, attr);
294 struct hfi1_pportdata *ppd =
295 container_of(kobj, struct hfi1_pportdata, sc2vl_kobj);
296 struct hfi1_devdata *dd = ppd->dd;
297
298 return sprintf(buf, "%u\n", *((u8 *)dd->sc2vl + sattr->sc));
299}
300
301static const struct sysfs_ops hfi1_sc2vl_ops = {
302 .show = sc2vl_attr_show,
303};
304
305static struct kobj_type hfi1_sc2vl_ktype = {
306 .release = port_release,
307 .sysfs_ops = &hfi1_sc2vl_ops,
308 .default_attrs = sc2vl_default_attributes
309};
310
311
312
313
314#define HFI1_SL2SC_ATTR(N) \
315 static struct hfi1_sl2sc_attr hfi1_sl2sc_attr_##N = { \
316 .attr = { .name = __stringify(N), .mode = 0444 }, \
317 .sl = N \
318 }
319
320struct hfi1_sl2sc_attr {
321 struct attribute attr;
322 int sl;
323};
324
325HFI1_SL2SC_ATTR(0);
326HFI1_SL2SC_ATTR(1);
327HFI1_SL2SC_ATTR(2);
328HFI1_SL2SC_ATTR(3);
329HFI1_SL2SC_ATTR(4);
330HFI1_SL2SC_ATTR(5);
331HFI1_SL2SC_ATTR(6);
332HFI1_SL2SC_ATTR(7);
333HFI1_SL2SC_ATTR(8);
334HFI1_SL2SC_ATTR(9);
335HFI1_SL2SC_ATTR(10);
336HFI1_SL2SC_ATTR(11);
337HFI1_SL2SC_ATTR(12);
338HFI1_SL2SC_ATTR(13);
339HFI1_SL2SC_ATTR(14);
340HFI1_SL2SC_ATTR(15);
341HFI1_SL2SC_ATTR(16);
342HFI1_SL2SC_ATTR(17);
343HFI1_SL2SC_ATTR(18);
344HFI1_SL2SC_ATTR(19);
345HFI1_SL2SC_ATTR(20);
346HFI1_SL2SC_ATTR(21);
347HFI1_SL2SC_ATTR(22);
348HFI1_SL2SC_ATTR(23);
349HFI1_SL2SC_ATTR(24);
350HFI1_SL2SC_ATTR(25);
351HFI1_SL2SC_ATTR(26);
352HFI1_SL2SC_ATTR(27);
353HFI1_SL2SC_ATTR(28);
354HFI1_SL2SC_ATTR(29);
355HFI1_SL2SC_ATTR(30);
356HFI1_SL2SC_ATTR(31);
357
358static struct attribute *sl2sc_default_attributes[] = {
359 &hfi1_sl2sc_attr_0.attr,
360 &hfi1_sl2sc_attr_1.attr,
361 &hfi1_sl2sc_attr_2.attr,
362 &hfi1_sl2sc_attr_3.attr,
363 &hfi1_sl2sc_attr_4.attr,
364 &hfi1_sl2sc_attr_5.attr,
365 &hfi1_sl2sc_attr_6.attr,
366 &hfi1_sl2sc_attr_7.attr,
367 &hfi1_sl2sc_attr_8.attr,
368 &hfi1_sl2sc_attr_9.attr,
369 &hfi1_sl2sc_attr_10.attr,
370 &hfi1_sl2sc_attr_11.attr,
371 &hfi1_sl2sc_attr_12.attr,
372 &hfi1_sl2sc_attr_13.attr,
373 &hfi1_sl2sc_attr_14.attr,
374 &hfi1_sl2sc_attr_15.attr,
375 &hfi1_sl2sc_attr_16.attr,
376 &hfi1_sl2sc_attr_17.attr,
377 &hfi1_sl2sc_attr_18.attr,
378 &hfi1_sl2sc_attr_19.attr,
379 &hfi1_sl2sc_attr_20.attr,
380 &hfi1_sl2sc_attr_21.attr,
381 &hfi1_sl2sc_attr_22.attr,
382 &hfi1_sl2sc_attr_23.attr,
383 &hfi1_sl2sc_attr_24.attr,
384 &hfi1_sl2sc_attr_25.attr,
385 &hfi1_sl2sc_attr_26.attr,
386 &hfi1_sl2sc_attr_27.attr,
387 &hfi1_sl2sc_attr_28.attr,
388 &hfi1_sl2sc_attr_29.attr,
389 &hfi1_sl2sc_attr_30.attr,
390 &hfi1_sl2sc_attr_31.attr,
391 NULL
392};
393
394static ssize_t sl2sc_attr_show(struct kobject *kobj, struct attribute *attr,
395 char *buf)
396{
397 struct hfi1_sl2sc_attr *sattr =
398 container_of(attr, struct hfi1_sl2sc_attr, attr);
399 struct hfi1_pportdata *ppd =
400 container_of(kobj, struct hfi1_pportdata, sl2sc_kobj);
401 struct hfi1_ibport *ibp = &ppd->ibport_data;
402
403 return sprintf(buf, "%u\n", ibp->sl_to_sc[sattr->sl]);
404}
405
406static const struct sysfs_ops hfi1_sl2sc_ops = {
407 .show = sl2sc_attr_show,
408};
409
410static struct kobj_type hfi1_sl2sc_ktype = {
411 .release = port_release,
412 .sysfs_ops = &hfi1_sl2sc_ops,
413 .default_attrs = sl2sc_default_attributes
414};
415
416
417
418
419
420#define HFI1_VL2MTU_ATTR(N) \
421 static struct hfi1_vl2mtu_attr hfi1_vl2mtu_attr_##N = { \
422 .attr = { .name = __stringify(N), .mode = 0444 }, \
423 .vl = N \
424 }
425
426struct hfi1_vl2mtu_attr {
427 struct attribute attr;
428 int vl;
429};
430
431HFI1_VL2MTU_ATTR(0);
432HFI1_VL2MTU_ATTR(1);
433HFI1_VL2MTU_ATTR(2);
434HFI1_VL2MTU_ATTR(3);
435HFI1_VL2MTU_ATTR(4);
436HFI1_VL2MTU_ATTR(5);
437HFI1_VL2MTU_ATTR(6);
438HFI1_VL2MTU_ATTR(7);
439HFI1_VL2MTU_ATTR(8);
440HFI1_VL2MTU_ATTR(9);
441HFI1_VL2MTU_ATTR(10);
442HFI1_VL2MTU_ATTR(11);
443HFI1_VL2MTU_ATTR(12);
444HFI1_VL2MTU_ATTR(13);
445HFI1_VL2MTU_ATTR(14);
446HFI1_VL2MTU_ATTR(15);
447
448static struct attribute *vl2mtu_default_attributes[] = {
449 &hfi1_vl2mtu_attr_0.attr,
450 &hfi1_vl2mtu_attr_1.attr,
451 &hfi1_vl2mtu_attr_2.attr,
452 &hfi1_vl2mtu_attr_3.attr,
453 &hfi1_vl2mtu_attr_4.attr,
454 &hfi1_vl2mtu_attr_5.attr,
455 &hfi1_vl2mtu_attr_6.attr,
456 &hfi1_vl2mtu_attr_7.attr,
457 &hfi1_vl2mtu_attr_8.attr,
458 &hfi1_vl2mtu_attr_9.attr,
459 &hfi1_vl2mtu_attr_10.attr,
460 &hfi1_vl2mtu_attr_11.attr,
461 &hfi1_vl2mtu_attr_12.attr,
462 &hfi1_vl2mtu_attr_13.attr,
463 &hfi1_vl2mtu_attr_14.attr,
464 &hfi1_vl2mtu_attr_15.attr,
465 NULL
466};
467
468static ssize_t vl2mtu_attr_show(struct kobject *kobj, struct attribute *attr,
469 char *buf)
470{
471 struct hfi1_vl2mtu_attr *vlattr =
472 container_of(attr, struct hfi1_vl2mtu_attr, attr);
473 struct hfi1_pportdata *ppd =
474 container_of(kobj, struct hfi1_pportdata, vl2mtu_kobj);
475 struct hfi1_devdata *dd = ppd->dd;
476
477 return sprintf(buf, "%u\n", dd->vld[vlattr->vl].mtu);
478}
479
480static const struct sysfs_ops hfi1_vl2mtu_ops = {
481 .show = vl2mtu_attr_show,
482};
483
484static struct kobj_type hfi1_vl2mtu_ktype = {
485 .release = port_release,
486 .sysfs_ops = &hfi1_vl2mtu_ops,
487 .default_attrs = vl2mtu_default_attributes
488};
489
490
491
492
493
494
495
496static ssize_t show_rev(struct device *device, struct device_attribute *attr,
497 char *buf)
498{
499 struct hfi1_ibdev *dev =
500 container_of(device, struct hfi1_ibdev, rdi.ibdev.dev);
501
502 return sprintf(buf, "%x\n", dd_from_dev(dev)->minrev);
503}
504
505static ssize_t show_hfi(struct device *device, struct device_attribute *attr,
506 char *buf)
507{
508 struct hfi1_ibdev *dev =
509 container_of(device, struct hfi1_ibdev, rdi.ibdev.dev);
510 struct hfi1_devdata *dd = dd_from_dev(dev);
511 int ret;
512
513 if (!dd->boardname)
514 ret = -EINVAL;
515 else
516 ret = scnprintf(buf, PAGE_SIZE, "%s\n", dd->boardname);
517 return ret;
518}
519
520static ssize_t show_boardversion(struct device *device,
521 struct device_attribute *attr, char *buf)
522{
523 struct hfi1_ibdev *dev =
524 container_of(device, struct hfi1_ibdev, rdi.ibdev.dev);
525 struct hfi1_devdata *dd = dd_from_dev(dev);
526
527
528 return scnprintf(buf, PAGE_SIZE, "%s", dd->boardversion);
529}
530
531static ssize_t show_nctxts(struct device *device,
532 struct device_attribute *attr, char *buf)
533{
534 struct hfi1_ibdev *dev =
535 container_of(device, struct hfi1_ibdev, rdi.ibdev.dev);
536 struct hfi1_devdata *dd = dd_from_dev(dev);
537
538
539
540
541
542
543
544 return scnprintf(buf, PAGE_SIZE, "%u\n",
545 min(dd->num_rcv_contexts - dd->first_user_ctxt,
546 (u32)dd->sc_sizes[SC_USER].count));
547}
548
549static ssize_t show_nfreectxts(struct device *device,
550 struct device_attribute *attr, char *buf)
551{
552 struct hfi1_ibdev *dev =
553 container_of(device, struct hfi1_ibdev, rdi.ibdev.dev);
554 struct hfi1_devdata *dd = dd_from_dev(dev);
555
556
557 return scnprintf(buf, PAGE_SIZE, "%u\n", dd->freectxts);
558}
559
560static ssize_t show_serial(struct device *device,
561 struct device_attribute *attr, char *buf)
562{
563 struct hfi1_ibdev *dev =
564 container_of(device, struct hfi1_ibdev, rdi.ibdev.dev);
565 struct hfi1_devdata *dd = dd_from_dev(dev);
566
567 return scnprintf(buf, PAGE_SIZE, "%s", dd->serial);
568}
569
570static ssize_t store_chip_reset(struct device *device,
571 struct device_attribute *attr, const char *buf,
572 size_t count)
573{
574 struct hfi1_ibdev *dev =
575 container_of(device, struct hfi1_ibdev, rdi.ibdev.dev);
576 struct hfi1_devdata *dd = dd_from_dev(dev);
577 int ret;
578
579 if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) {
580 ret = -EINVAL;
581 goto bail;
582 }
583
584 ret = hfi1_reset_device(dd->unit);
585bail:
586 return ret < 0 ? ret : count;
587}
588
589
590
591
592
593#define temp2str(temp, buf, size, idx) \
594 scnprintf((buf) + (idx), (size) - (idx), "%u.%02u ", \
595 ((temp) >> 2), ((temp) & 0x3) * 25)
596
597
598
599
600static ssize_t show_tempsense(struct device *device,
601 struct device_attribute *attr, char *buf)
602{
603 struct hfi1_ibdev *dev =
604 container_of(device, struct hfi1_ibdev, rdi.ibdev.dev);
605 struct hfi1_devdata *dd = dd_from_dev(dev);
606 struct hfi1_temp temp;
607 int ret;
608
609 ret = hfi1_tempsense_rd(dd, &temp);
610 if (!ret) {
611 int idx = 0;
612
613 idx += temp2str(temp.curr, buf, PAGE_SIZE, idx);
614 idx += temp2str(temp.lo_lim, buf, PAGE_SIZE, idx);
615 idx += temp2str(temp.hi_lim, buf, PAGE_SIZE, idx);
616 idx += temp2str(temp.crit_lim, buf, PAGE_SIZE, idx);
617 idx += scnprintf(buf + idx, PAGE_SIZE - idx,
618 "%u %u %u\n", temp.triggers & 0x1,
619 temp.triggers & 0x2, temp.triggers & 0x4);
620 ret = idx;
621 }
622 return ret;
623}
624
625
626
627
628
629
630
631static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
632static DEVICE_ATTR(board_id, S_IRUGO, show_hfi, NULL);
633static DEVICE_ATTR(nctxts, S_IRUGO, show_nctxts, NULL);
634static DEVICE_ATTR(nfreectxts, S_IRUGO, show_nfreectxts, NULL);
635static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
636static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL);
637static DEVICE_ATTR(tempsense, S_IRUGO, show_tempsense, NULL);
638static DEVICE_ATTR(chip_reset, S_IWUSR, NULL, store_chip_reset);
639
640static struct device_attribute *hfi1_attributes[] = {
641 &dev_attr_hw_rev,
642 &dev_attr_board_id,
643 &dev_attr_nctxts,
644 &dev_attr_nfreectxts,
645 &dev_attr_serial,
646 &dev_attr_boardversion,
647 &dev_attr_tempsense,
648 &dev_attr_chip_reset,
649};
650
651int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num,
652 struct kobject *kobj)
653{
654 struct hfi1_pportdata *ppd;
655 struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
656 int ret;
657
658 if (!port_num || port_num > dd->num_pports) {
659 dd_dev_err(dd,
660 "Skipping infiniband class with invalid port %u\n",
661 port_num);
662 return -ENODEV;
663 }
664 ppd = &dd->pport[port_num - 1];
665
666 ret = kobject_init_and_add(&ppd->sc2vl_kobj, &hfi1_sc2vl_ktype, kobj,
667 "sc2vl");
668 if (ret) {
669 dd_dev_err(dd,
670 "Skipping sc2vl sysfs info, (err %d) port %u\n",
671 ret, port_num);
672 goto bail;
673 }
674 kobject_uevent(&ppd->sc2vl_kobj, KOBJ_ADD);
675
676 ret = kobject_init_and_add(&ppd->sl2sc_kobj, &hfi1_sl2sc_ktype, kobj,
677 "sl2sc");
678 if (ret) {
679 dd_dev_err(dd,
680 "Skipping sl2sc sysfs info, (err %d) port %u\n",
681 ret, port_num);
682 goto bail_sc2vl;
683 }
684 kobject_uevent(&ppd->sl2sc_kobj, KOBJ_ADD);
685
686 ret = kobject_init_and_add(&ppd->vl2mtu_kobj, &hfi1_vl2mtu_ktype, kobj,
687 "vl2mtu");
688 if (ret) {
689 dd_dev_err(dd,
690 "Skipping vl2mtu sysfs info, (err %d) port %u\n",
691 ret, port_num);
692 goto bail_sl2sc;
693 }
694 kobject_uevent(&ppd->vl2mtu_kobj, KOBJ_ADD);
695
696 ret = kobject_init_and_add(&ppd->pport_cc_kobj, &port_cc_ktype,
697 kobj, "CCMgtA");
698 if (ret) {
699 dd_dev_err(dd,
700 "Skipping Congestion Control sysfs info, (err %d) port %u\n",
701 ret, port_num);
702 goto bail_vl2mtu;
703 }
704
705 kobject_uevent(&ppd->pport_cc_kobj, KOBJ_ADD);
706
707 ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, &cc_setting_bin_attr);
708 if (ret) {
709 dd_dev_err(dd,
710 "Skipping Congestion Control setting sysfs info, (err %d) port %u\n",
711 ret, port_num);
712 goto bail_cc;
713 }
714
715 ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, &cc_table_bin_attr);
716 if (ret) {
717 dd_dev_err(dd,
718 "Skipping Congestion Control table sysfs info, (err %d) port %u\n",
719 ret, port_num);
720 goto bail_cc_entry_bin;
721 }
722
723 dd_dev_info(dd,
724 "Congestion Control Agent enabled for port %d\n",
725 port_num);
726
727 return 0;
728
729bail_cc_entry_bin:
730 sysfs_remove_bin_file(&ppd->pport_cc_kobj,
731 &cc_setting_bin_attr);
732bail_cc:
733 kobject_put(&ppd->pport_cc_kobj);
734bail_vl2mtu:
735 kobject_put(&ppd->vl2mtu_kobj);
736bail_sl2sc:
737 kobject_put(&ppd->sl2sc_kobj);
738bail_sc2vl:
739 kobject_put(&ppd->sc2vl_kobj);
740bail:
741 return ret;
742}
743
744struct sde_attribute {
745 struct attribute attr;
746 ssize_t (*show)(struct sdma_engine *sde, char *buf);
747 ssize_t (*store)(struct sdma_engine *sde, const char *buf, size_t cnt);
748};
749
750static ssize_t sde_show(struct kobject *kobj, struct attribute *attr, char *buf)
751{
752 struct sde_attribute *sde_attr =
753 container_of(attr, struct sde_attribute, attr);
754 struct sdma_engine *sde =
755 container_of(kobj, struct sdma_engine, kobj);
756
757 if (!sde_attr->show)
758 return -EINVAL;
759
760 return sde_attr->show(sde, buf);
761}
762
763static ssize_t sde_store(struct kobject *kobj, struct attribute *attr,
764 const char *buf, size_t count)
765{
766 struct sde_attribute *sde_attr =
767 container_of(attr, struct sde_attribute, attr);
768 struct sdma_engine *sde =
769 container_of(kobj, struct sdma_engine, kobj);
770
771 if (!capable(CAP_SYS_ADMIN))
772 return -EPERM;
773
774 if (!sde_attr->store)
775 return -EINVAL;
776
777 return sde_attr->store(sde, buf, count);
778}
779
780static const struct sysfs_ops sde_sysfs_ops = {
781 .show = sde_show,
782 .store = sde_store,
783};
784
785static struct kobj_type sde_ktype = {
786 .sysfs_ops = &sde_sysfs_ops,
787};
788
789#define SDE_ATTR(_name, _mode, _show, _store) \
790 struct sde_attribute sde_attr_##_name = \
791 __ATTR(_name, _mode, _show, _store)
792
793static ssize_t sde_show_cpu_to_sde_map(struct sdma_engine *sde, char *buf)
794{
795 return sdma_get_cpu_to_sde_map(sde, buf);
796}
797
798static ssize_t sde_store_cpu_to_sde_map(struct sdma_engine *sde,
799 const char *buf, size_t count)
800{
801 return sdma_set_cpu_to_sde_map(sde, buf, count);
802}
803
804static ssize_t sde_show_vl(struct sdma_engine *sde, char *buf)
805{
806 int vl;
807
808 vl = sdma_engine_get_vl(sde);
809 if (vl < 0)
810 return vl;
811
812 return snprintf(buf, PAGE_SIZE, "%d\n", vl);
813}
814
815static SDE_ATTR(cpu_list, S_IWUSR | S_IRUGO,
816 sde_show_cpu_to_sde_map,
817 sde_store_cpu_to_sde_map);
818static SDE_ATTR(vl, S_IRUGO, sde_show_vl, NULL);
819
820static struct sde_attribute *sde_attribs[] = {
821 &sde_attr_cpu_list,
822 &sde_attr_vl
823};
824
825
826
827
828int hfi1_verbs_register_sysfs(struct hfi1_devdata *dd)
829{
830 struct ib_device *dev = &dd->verbs_dev.rdi.ibdev;
831 struct device *class_dev = &dev->dev;
832 int i, j, ret;
833
834 for (i = 0; i < ARRAY_SIZE(hfi1_attributes); ++i) {
835 ret = device_create_file(&dev->dev, hfi1_attributes[i]);
836 if (ret)
837 goto bail;
838 }
839
840 for (i = 0; i < dd->num_sdma; i++) {
841 ret = kobject_init_and_add(&dd->per_sdma[i].kobj,
842 &sde_ktype, &class_dev->kobj,
843 "sdma%d", i);
844 if (ret)
845 goto bail;
846
847 for (j = 0; j < ARRAY_SIZE(sde_attribs); j++) {
848 ret = sysfs_create_file(&dd->per_sdma[i].kobj,
849 &sde_attribs[j]->attr);
850 if (ret)
851 goto bail;
852 }
853 }
854
855 return 0;
856bail:
857 for (i = 0; i < ARRAY_SIZE(hfi1_attributes); ++i)
858 device_remove_file(&dev->dev, hfi1_attributes[i]);
859
860 for (i = 0; i < dd->num_sdma; i++)
861 kobject_del(&dd->per_sdma[i].kobj);
862
863 return ret;
864}
865
866
867
868
869void hfi1_verbs_unregister_sysfs(struct hfi1_devdata *dd)
870{
871 struct hfi1_pportdata *ppd;
872 int i;
873
874 for (i = 0; i < dd->num_pports; i++) {
875 ppd = &dd->pport[i];
876
877 sysfs_remove_bin_file(&ppd->pport_cc_kobj,
878 &cc_setting_bin_attr);
879 sysfs_remove_bin_file(&ppd->pport_cc_kobj,
880 &cc_table_bin_attr);
881 kobject_put(&ppd->pport_cc_kobj);
882 kobject_put(&ppd->vl2mtu_kobj);
883 kobject_put(&ppd->sl2sc_kobj);
884 kobject_put(&ppd->sc2vl_kobj);
885 }
886}
887
