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of: MSI: Simplify irqdomain lookup
[linux/fpc-iii.git] / drivers / infiniband / hw / mlx4 / sysfs.c
blob69fb5ba94d0f226c11a8614b29be4c33df329040
1 /*
2 * Copyright (c) 2012 Mellanox Technologies. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33 /*#include "core_priv.h"*/
34 #include "mlx4_ib.h"
35 #include <linux/slab.h>
36 #include <linux/string.h>
37 #include <linux/stat.h>
38
39 #include <rdma/ib_mad.h>
40 /*show_admin_alias_guid returns the administratively assigned value of that GUID.
41 * Values returned in buf parameter string:
42 * 0 - requests opensm to assign a value.
43 * ffffffffffffffff - delete this entry.
44 * other - value assigned by administrator.
45 */
46 static ssize_t show_admin_alias_guid(struct device *dev,
47 struct device_attribute *attr, char *buf)
48 {
49 struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
50 container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
51 struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
52 struct mlx4_ib_dev *mdev = port->dev;
53 __be64 sysadmin_ag_val;
54
55 sysadmin_ag_val = mlx4_get_admin_guid(mdev->dev,
56 mlx4_ib_iov_dentry->entry_num,
57 port->num);
58
59 return sprintf(buf, "%llx\n", be64_to_cpu(sysadmin_ag_val));
60 }
61
62 /* store_admin_alias_guid stores the (new) administratively assigned value of that GUID.
63 * Values in buf parameter string:
64 * 0 - requests opensm to assign a value.
65 * 0xffffffffffffffff - delete this entry.
66 * other - guid value assigned by the administrator.
67 */
68 static ssize_t store_admin_alias_guid(struct device *dev,
69 struct device_attribute *attr,
70 const char *buf, size_t count)
71 {
72 int record_num;/*0-15*/
73 int guid_index_in_rec; /*0 - 7*/
74 struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
75 container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
76 struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
77 struct mlx4_ib_dev *mdev = port->dev;
78 u64 sysadmin_ag_val;
79 unsigned long flags;
80
81 record_num = mlx4_ib_iov_dentry->entry_num / 8;
82 guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8;
83 if (0 == record_num && 0 == guid_index_in_rec) {
84 pr_err("GUID 0 block 0 is RO\n");
85 return count;
86 }
87 spin_lock_irqsave(&mdev->sriov.alias_guid.ag_work_lock, flags);
88 sscanf(buf, "%llx", &sysadmin_ag_val);
89 *(__be64 *)&mdev->sriov.alias_guid.ports_guid[port->num - 1].
90 all_rec_per_port[record_num].
91 all_recs[GUID_REC_SIZE * guid_index_in_rec] =
92 cpu_to_be64(sysadmin_ag_val);
93
94 /* Change the state to be pending for update */
95 mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].status
96 = MLX4_GUID_INFO_STATUS_IDLE ;
97 mlx4_set_admin_guid(mdev->dev, cpu_to_be64(sysadmin_ag_val),
98 mlx4_ib_iov_dentry->entry_num,
99 port->num);
100
101 /* set the record index */
102 mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].guid_indexes
103 |= mlx4_ib_get_aguid_comp_mask_from_ix(guid_index_in_rec);
104
105 spin_unlock_irqrestore(&mdev->sriov.alias_guid.ag_work_lock, flags);
106 mlx4_ib_init_alias_guid_work(mdev, port->num - 1);
107
108 return count;
109 }
110
111 static ssize_t show_port_gid(struct device *dev,
112 struct device_attribute *attr,
113 char *buf)
114 {
115 struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
116 container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
117 struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
118 struct mlx4_ib_dev *mdev = port->dev;
119 union ib_gid gid;
120 ssize_t ret;
121
122 ret = __mlx4_ib_query_gid(&mdev->ib_dev, port->num,
123 mlx4_ib_iov_dentry->entry_num, &gid, 1);
124 if (ret)
125 return ret;
126 ret = sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
127 be16_to_cpu(((__be16 *) gid.raw)[0]),
128 be16_to_cpu(((__be16 *) gid.raw)[1]),
129 be16_to_cpu(((__be16 *) gid.raw)[2]),
130 be16_to_cpu(((__be16 *) gid.raw)[3]),
131 be16_to_cpu(((__be16 *) gid.raw)[4]),
132 be16_to_cpu(((__be16 *) gid.raw)[5]),
133 be16_to_cpu(((__be16 *) gid.raw)[6]),
134 be16_to_cpu(((__be16 *) gid.raw)[7]));
135 return ret;
136 }
137
138 static ssize_t show_phys_port_pkey(struct device *dev,
139 struct device_attribute *attr,
140 char *buf)
141 {
142 struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
143 container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
144 struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
145 struct mlx4_ib_dev *mdev = port->dev;
146 u16 pkey;
147 ssize_t ret;
148
149 ret = __mlx4_ib_query_pkey(&mdev->ib_dev, port->num,
150 mlx4_ib_iov_dentry->entry_num, &pkey, 1);
151 if (ret)
152 return ret;
153
154 return sprintf(buf, "0x%04x\n", pkey);
155 }
156
157 #define DENTRY_REMOVE(_dentry) \
158 do { \
159 sysfs_remove_file((_dentry)->kobj, &(_dentry)->dentry.attr); \
160 } while (0);
161
162 static int create_sysfs_entry(void *_ctx, struct mlx4_ib_iov_sysfs_attr *_dentry,
163 char *_name, struct kobject *_kobj,
164 ssize_t (*show)(struct device *dev,
165 struct device_attribute *attr,
166 char *buf),
167 ssize_t (*store)(struct device *dev,
168 struct device_attribute *attr,
169 const char *buf, size_t count)
170 )
171 {
172 int ret = 0;
173 struct mlx4_ib_iov_sysfs_attr *vdentry = _dentry;
174
175 vdentry->ctx = _ctx;
176 vdentry->dentry.show = show;
177 vdentry->dentry.store = store;
178 sysfs_attr_init(&vdentry->dentry.attr);
179 vdentry->dentry.attr.name = vdentry->name;
180 vdentry->dentry.attr.mode = 0;
181 vdentry->kobj = _kobj;
182 snprintf(vdentry->name, 15, "%s", _name);
183
184 if (vdentry->dentry.store)
185 vdentry->dentry.attr.mode |= S_IWUSR;
186
187 if (vdentry->dentry.show)
188 vdentry->dentry.attr.mode |= S_IRUGO;
189
190 ret = sysfs_create_file(vdentry->kobj, &vdentry->dentry.attr);
191 if (ret) {
192 pr_err("failed to create %s\n", vdentry->dentry.attr.name);
193 vdentry->ctx = NULL;
194 return ret;
195 }
196
197 return ret;
198 }
199
200 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
201 struct attribute *attr)
202 {
203 struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1];
204 int ret;
205
206 ret = sysfs_create_file(port->mcgs_parent, attr);
207 if (ret)
208 pr_err("failed to create %s\n", attr->name);
209
210 return ret;
211 }
212
213 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
214 struct attribute *attr)
215 {
216 struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1];
217
218 sysfs_remove_file(port->mcgs_parent, attr);
219 }
220
221 static int add_port_entries(struct mlx4_ib_dev *device, int port_num)
222 {
223 int i;
224 char buff[10];
225 struct mlx4_ib_iov_port *port = NULL;
226 int ret = 0 ;
227 struct ib_port_attr attr;
228
229 /* get the physical gid and pkey table sizes.*/
230 ret = __mlx4_ib_query_port(&device->ib_dev, port_num, &attr, 1);
231 if (ret)
232 goto err;
233
234 port = &device->iov_ports[port_num - 1];
235 port->dev = device;
236 port->num = port_num;
237 /* Directory structure:
238 * iov -
239 * port num -
240 * admin_guids
241 * gids (operational)
242 * mcg_table
243 */
244 port->dentr_ar = kzalloc(sizeof (struct mlx4_ib_iov_sysfs_attr_ar),
245 GFP_KERNEL);
246 if (!port->dentr_ar) {
247 ret = -ENOMEM;
248 goto err;
249 }
250 sprintf(buff, "%d", port_num);
251 port->cur_port = kobject_create_and_add(buff,
252 kobject_get(device->ports_parent));
253 if (!port->cur_port) {
254 ret = -ENOMEM;
255 goto kobj_create_err;
256 }
257 /* admin GUIDs */
258 port->admin_alias_parent = kobject_create_and_add("admin_guids",
259 kobject_get(port->cur_port));
260 if (!port->admin_alias_parent) {
261 ret = -ENOMEM;
262 goto err_admin_guids;
263 }
264 for (i = 0 ; i < attr.gid_tbl_len; i++) {
265 sprintf(buff, "%d", i);
266 port->dentr_ar->dentries[i].entry_num = i;
267 ret = create_sysfs_entry(port, &port->dentr_ar->dentries[i],
268 buff, port->admin_alias_parent,
269 show_admin_alias_guid, store_admin_alias_guid);
270 if (ret)
271 goto err_admin_alias_parent;
272 }
273
274 /* gids subdirectory (operational gids) */
275 port->gids_parent = kobject_create_and_add("gids",
276 kobject_get(port->cur_port));
277 if (!port->gids_parent) {
278 ret = -ENOMEM;
279 goto err_gids;
280 }
281
282 for (i = 0 ; i < attr.gid_tbl_len; i++) {
283 sprintf(buff, "%d", i);
284 port->dentr_ar->dentries[attr.gid_tbl_len + i].entry_num = i;
285 ret = create_sysfs_entry(port,
286 &port->dentr_ar->dentries[attr.gid_tbl_len + i],
287 buff,
288 port->gids_parent, show_port_gid, NULL);
289 if (ret)
290 goto err_gids_parent;
291 }
292
293 /* physical port pkey table */
294 port->pkeys_parent =
295 kobject_create_and_add("pkeys", kobject_get(port->cur_port));
296 if (!port->pkeys_parent) {
297 ret = -ENOMEM;
298 goto err_pkeys;
299 }
300
301 for (i = 0 ; i < attr.pkey_tbl_len; i++) {
302 sprintf(buff, "%d", i);
303 port->dentr_ar->dentries[2 * attr.gid_tbl_len + i].entry_num = i;
304 ret = create_sysfs_entry(port,
305 &port->dentr_ar->dentries[2 * attr.gid_tbl_len + i],
306 buff, port->pkeys_parent,
307 show_phys_port_pkey, NULL);
308 if (ret)
309 goto err_pkeys_parent;
310 }
311
312 /* MCGs table */
313 port->mcgs_parent =
314 kobject_create_and_add("mcgs", kobject_get(port->cur_port));
315 if (!port->mcgs_parent) {
316 ret = -ENOMEM;
317 goto err_mcgs;
318 }
319 return 0;
320
321 err_mcgs:
322 kobject_put(port->cur_port);
323
324 err_pkeys_parent:
325 kobject_put(port->pkeys_parent);
326
327 err_pkeys:
328 kobject_put(port->cur_port);
329
330 err_gids_parent:
331 kobject_put(port->gids_parent);
332
333 err_gids:
334 kobject_put(port->cur_port);
335
336 err_admin_alias_parent:
337 kobject_put(port->admin_alias_parent);
338
339 err_admin_guids:
340 kobject_put(port->cur_port);
341 kobject_put(port->cur_port); /* once more for create_and_add buff */
342
343 kobj_create_err:
344 kobject_put(device->ports_parent);
345 kfree(port->dentr_ar);
346
347 err:
348 pr_err("add_port_entries FAILED: for port:%d, error: %d\n",
349 port_num, ret);
350 return ret;
351 }
352
353 static void get_name(struct mlx4_ib_dev *dev, char *name, int i, int max)
354 {
355 char base_name[9];
356
357 /* pci_name format is: bus:dev:func -> xxxx:yy:zz.n */
358 strlcpy(name, pci_name(dev->dev->persist->pdev), max);
359 strncpy(base_name, name, 8); /*till xxxx:yy:*/
360 base_name[8] = '\0';
361 /* with no ARI only 3 last bits are used so when the fn is higher than 8
362 * need to add it to the dev num, so count in the last number will be
363 * modulo 8 */
364 sprintf(name, "%s%.2d.%d", base_name, (i/8), (i%8));
365 }
366
367 struct mlx4_port {
368 struct kobject kobj;
369 struct mlx4_ib_dev *dev;
370 struct attribute_group pkey_group;
371 struct attribute_group gid_group;
372 struct device_attribute enable_smi_admin;
373 struct device_attribute smi_enabled;
374 int slave;
375 u8 port_num;
376 };
377
378
379 static void mlx4_port_release(struct kobject *kobj)
380 {
381 struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj);
382 struct attribute *a;
383 int i;
384
385 for (i = 0; (a = p->pkey_group.attrs[i]); ++i)
386 kfree(a);
387 kfree(p->pkey_group.attrs);
388 for (i = 0; (a = p->gid_group.attrs[i]); ++i)
389 kfree(a);
390 kfree(p->gid_group.attrs);
391 kfree(p);
392 }
393
394 struct port_attribute {
395 struct attribute attr;
396 ssize_t (*show)(struct mlx4_port *, struct port_attribute *, char *buf);
397 ssize_t (*store)(struct mlx4_port *, struct port_attribute *,
398 const char *buf, size_t count);
399 };
400
401 static ssize_t port_attr_show(struct kobject *kobj,
402 struct attribute *attr, char *buf)
403 {
404 struct port_attribute *port_attr =
405 container_of(attr, struct port_attribute, attr);
406 struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj);
407
408 if (!port_attr->show)
409 return -EIO;
410 return port_attr->show(p, port_attr, buf);
411 }
412
413 static ssize_t port_attr_store(struct kobject *kobj,
414 struct attribute *attr,
415 const char *buf, size_t size)
416 {
417 struct port_attribute *port_attr =
418 container_of(attr, struct port_attribute, attr);
419 struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj);
420
421 if (!port_attr->store)
422 return -EIO;
423 return port_attr->store(p, port_attr, buf, size);
424 }
425
426 static const struct sysfs_ops port_sysfs_ops = {
427 .show = port_attr_show,
428 .store = port_attr_store,
429 };
430
431 static struct kobj_type port_type = {
432 .release = mlx4_port_release,
433 .sysfs_ops = &port_sysfs_ops,
434 };
435
436 struct port_table_attribute {
437 struct port_attribute attr;
438 char name[8];
439 int index;
440 };
441
442 static ssize_t show_port_pkey(struct mlx4_port *p, struct port_attribute *attr,
443 char *buf)
444 {
445 struct port_table_attribute *tab_attr =
446 container_of(attr, struct port_table_attribute, attr);
447 ssize_t ret = -ENODEV;
448
449 if (p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1][tab_attr->index] >=
450 (p->dev->dev->caps.pkey_table_len[p->port_num]))
451 ret = sprintf(buf, "none\n");
452 else
453 ret = sprintf(buf, "%d\n",
454 p->dev->pkeys.virt2phys_pkey[p->slave]
455 [p->port_num - 1][tab_attr->index]);
456 return ret;
457 }
458
459 static ssize_t store_port_pkey(struct mlx4_port *p, struct port_attribute *attr,
460 const char *buf, size_t count)
461 {
462 struct port_table_attribute *tab_attr =
463 container_of(attr, struct port_table_attribute, attr);
464 int idx;
465 int err;
466
467 /* do not allow remapping Dom0 virtual pkey table */
468 if (p->slave == mlx4_master_func_num(p->dev->dev))
469 return -EINVAL;
470
471 if (!strncasecmp(buf, "no", 2))
472 idx = p->dev->dev->phys_caps.pkey_phys_table_len[p->port_num] - 1;
473 else if (sscanf(buf, "%i", &idx) != 1 ||
474 idx >= p->dev->dev->caps.pkey_table_len[p->port_num] ||
475 idx < 0)
476 return -EINVAL;
477
478 p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1]
479 [tab_attr->index] = idx;
480 mlx4_sync_pkey_table(p->dev->dev, p->slave, p->port_num,
481 tab_attr->index, idx);
482 err = mlx4_gen_pkey_eqe(p->dev->dev, p->slave, p->port_num);
483 if (err) {
484 pr_err("mlx4_gen_pkey_eqe failed for slave %d,"
485 " port %d, index %d\n", p->slave, p->port_num, idx);
486 return err;
487 }
488 return count;
489 }
490
491 static ssize_t show_port_gid_idx(struct mlx4_port *p,
492 struct port_attribute *attr, char *buf)
493 {
494 return sprintf(buf, "%d\n", p->slave);
495 }
496
497 static struct attribute **
498 alloc_group_attrs(ssize_t (*show)(struct mlx4_port *,
499 struct port_attribute *, char *buf),
500 ssize_t (*store)(struct mlx4_port *, struct port_attribute *,
501 const char *buf, size_t count),
502 int len)
503 {
504 struct attribute **tab_attr;
505 struct port_table_attribute *element;
506 int i;
507
508 tab_attr = kcalloc(1 + len, sizeof (struct attribute *), GFP_KERNEL);
509 if (!tab_attr)
510 return NULL;
511
512 for (i = 0; i < len; i++) {
513 element = kzalloc(sizeof (struct port_table_attribute),
514 GFP_KERNEL);
515 if (!element)
516 goto err;
517 if (snprintf(element->name, sizeof (element->name),
518 "%d", i) >= sizeof (element->name)) {
519 kfree(element);
520 goto err;
521 }
522 sysfs_attr_init(&element->attr.attr);
523 element->attr.attr.name = element->name;
524 if (store) {
525 element->attr.attr.mode = S_IWUSR | S_IRUGO;
526 element->attr.store = store;
527 } else
528 element->attr.attr.mode = S_IRUGO;
529
530 element->attr.show = show;
531 element->index = i;
532 tab_attr[i] = &element->attr.attr;
533 }
534 return tab_attr;
535
536 err:
537 while (--i >= 0)
538 kfree(tab_attr[i]);
539 kfree(tab_attr);
540 return NULL;
541 }
542
543 static ssize_t sysfs_show_smi_enabled(struct device *dev,
544 struct device_attribute *attr, char *buf)
545 {
546 struct mlx4_port *p =
547 container_of(attr, struct mlx4_port, smi_enabled);
548 ssize_t len = 0;
549
550 if (mlx4_vf_smi_enabled(p->dev->dev, p->slave, p->port_num))
551 len = sprintf(buf, "%d\n", 1);
552 else
553 len = sprintf(buf, "%d\n", 0);
554
555 return len;
556 }
557
558 static ssize_t sysfs_show_enable_smi_admin(struct device *dev,
559 struct device_attribute *attr,
560 char *buf)
561 {
562 struct mlx4_port *p =
563 container_of(attr, struct mlx4_port, enable_smi_admin);
564 ssize_t len = 0;
565
566 if (mlx4_vf_get_enable_smi_admin(p->dev->dev, p->slave, p->port_num))
567 len = sprintf(buf, "%d\n", 1);
568 else
569 len = sprintf(buf, "%d\n", 0);
570
571 return len;
572 }
573
574 static ssize_t sysfs_store_enable_smi_admin(struct device *dev,
575 struct device_attribute *attr,
576 const char *buf, size_t count)
577 {
578 struct mlx4_port *p =
579 container_of(attr, struct mlx4_port, enable_smi_admin);
580 int enable;
581
582 if (sscanf(buf, "%i", &enable) != 1 ||
583 enable < 0 || enable > 1)
584 return -EINVAL;
585
586 if (mlx4_vf_set_enable_smi_admin(p->dev->dev, p->slave, p->port_num, enable))
587 return -EINVAL;
588 return count;
589 }
590
591 static int add_vf_smi_entries(struct mlx4_port *p)
592 {
593 int is_eth = rdma_port_get_link_layer(&p->dev->ib_dev, p->port_num) ==
594 IB_LINK_LAYER_ETHERNET;
595 int ret;
596
597 /* do not display entries if eth transport, or if master */
598 if (is_eth || p->slave == mlx4_master_func_num(p->dev->dev))
599 return 0;
600
601 sysfs_attr_init(&p->smi_enabled.attr);
602 p->smi_enabled.show = sysfs_show_smi_enabled;
603 p->smi_enabled.store = NULL;
604 p->smi_enabled.attr.name = "smi_enabled";
605 p->smi_enabled.attr.mode = 0444;
606 ret = sysfs_create_file(&p->kobj, &p->smi_enabled.attr);
607 if (ret) {
608 pr_err("failed to create smi_enabled\n");
609 return ret;
610 }
611
612 sysfs_attr_init(&p->enable_smi_admin.attr);
613 p->enable_smi_admin.show = sysfs_show_enable_smi_admin;
614 p->enable_smi_admin.store = sysfs_store_enable_smi_admin;
615 p->enable_smi_admin.attr.name = "enable_smi_admin";
616 p->enable_smi_admin.attr.mode = 0644;
617 ret = sysfs_create_file(&p->kobj, &p->enable_smi_admin.attr);
618 if (ret) {
619 pr_err("failed to create enable_smi_admin\n");
620 sysfs_remove_file(&p->kobj, &p->smi_enabled.attr);
621 return ret;
622 }
623 return 0;
624 }
625
626 static void remove_vf_smi_entries(struct mlx4_port *p)
627 {
628 int is_eth = rdma_port_get_link_layer(&p->dev->ib_dev, p->port_num) ==
629 IB_LINK_LAYER_ETHERNET;
630
631 if (is_eth || p->slave == mlx4_master_func_num(p->dev->dev))
632 return;
633
634 sysfs_remove_file(&p->kobj, &p->smi_enabled.attr);
635 sysfs_remove_file(&p->kobj, &p->enable_smi_admin.attr);
636 }
637
638 static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave)
639 {
640 struct mlx4_port *p;
641 int i;
642 int ret;
643 int is_eth = rdma_port_get_link_layer(&dev->ib_dev, port_num) ==
644 IB_LINK_LAYER_ETHERNET;
645
646 p = kzalloc(sizeof *p, GFP_KERNEL);
647 if (!p)
648 return -ENOMEM;
649
650 p->dev = dev;
651 p->port_num = port_num;
652 p->slave = slave;
653
654 ret = kobject_init_and_add(&p->kobj, &port_type,
655 kobject_get(dev->dev_ports_parent[slave]),
656 "%d", port_num);
657 if (ret)
658 goto err_alloc;
659
660 p->pkey_group.name = "pkey_idx";
661 p->pkey_group.attrs =
662 alloc_group_attrs(show_port_pkey,
663 is_eth ? NULL : store_port_pkey,
664 dev->dev->caps.pkey_table_len[port_num]);
665 if (!p->pkey_group.attrs) {
666 ret = -ENOMEM;
667 goto err_alloc;
668 }
669
670 ret = sysfs_create_group(&p->kobj, &p->pkey_group);
671 if (ret)
672 goto err_free_pkey;
673
674 p->gid_group.name = "gid_idx";
675 p->gid_group.attrs = alloc_group_attrs(show_port_gid_idx, NULL, 1);
676 if (!p->gid_group.attrs) {
677 ret = -ENOMEM;
678 goto err_free_pkey;
679 }
680
681 ret = sysfs_create_group(&p->kobj, &p->gid_group);
682 if (ret)
683 goto err_free_gid;
684
685 ret = add_vf_smi_entries(p);
686 if (ret)
687 goto err_free_gid;
688
689 list_add_tail(&p->kobj.entry, &dev->pkeys.pkey_port_list[slave]);
690 return 0;
691
692 err_free_gid:
693 kfree(p->gid_group.attrs[0]);
694 kfree(p->gid_group.attrs);
695
696 err_free_pkey:
697 for (i = 0; i < dev->dev->caps.pkey_table_len[port_num]; ++i)
698 kfree(p->pkey_group.attrs[i]);
699 kfree(p->pkey_group.attrs);
700
701 err_alloc:
702 kobject_put(dev->dev_ports_parent[slave]);
703 kfree(p);
704 return ret;
705 }
706
707 static int register_one_pkey_tree(struct mlx4_ib_dev *dev, int slave)
708 {
709 char name[32];
710 int err;
711 int port;
712 struct kobject *p, *t;
713 struct mlx4_port *mport;
714 struct mlx4_active_ports actv_ports;
715
716 get_name(dev, name, slave, sizeof name);
717
718 dev->pkeys.device_parent[slave] =
719 kobject_create_and_add(name, kobject_get(dev->iov_parent));
720
721 if (!dev->pkeys.device_parent[slave]) {
722 err = -ENOMEM;
723 goto fail_dev;
724 }
725
726 INIT_LIST_HEAD(&dev->pkeys.pkey_port_list[slave]);
727
728 dev->dev_ports_parent[slave] =
729 kobject_create_and_add("ports",
730 kobject_get(dev->pkeys.device_parent[slave]));
731
732 if (!dev->dev_ports_parent[slave]) {
733 err = -ENOMEM;
734 goto err_ports;
735 }
736
737 actv_ports = mlx4_get_active_ports(dev->dev, slave);
738
739 for (port = 1; port <= dev->dev->caps.num_ports; ++port) {
740 if (!test_bit(port - 1, actv_ports.ports))
741 continue;
742 err = add_port(dev, port, slave);
743 if (err)
744 goto err_add;
745 }
746 return 0;
747
748 err_add:
749 list_for_each_entry_safe(p, t,
750 &dev->pkeys.pkey_port_list[slave],
751 entry) {
752 list_del(&p->entry);
753 mport = container_of(p, struct mlx4_port, kobj);
754 sysfs_remove_group(p, &mport->pkey_group);
755 sysfs_remove_group(p, &mport->gid_group);
756 remove_vf_smi_entries(mport);
757 kobject_put(p);
758 }
759 kobject_put(dev->dev_ports_parent[slave]);
760
761 err_ports:
762 kobject_put(dev->pkeys.device_parent[slave]);
763 /* extra put for the device_parent create_and_add */
764 kobject_put(dev->pkeys.device_parent[slave]);
765
766 fail_dev:
767 kobject_put(dev->iov_parent);
768 return err;
769 }
770
771 static int register_pkey_tree(struct mlx4_ib_dev *device)
772 {
773 int i;
774
775 if (!mlx4_is_master(device->dev))
776 return 0;
777
778 for (i = 0; i <= device->dev->persist->num_vfs; ++i)
779 register_one_pkey_tree(device, i);
780
781 return 0;
782 }
783
784 static void unregister_pkey_tree(struct mlx4_ib_dev *device)
785 {
786 int slave;
787 struct kobject *p, *t;
788 struct mlx4_port *port;
789
790 if (!mlx4_is_master(device->dev))
791 return;
792
793 for (slave = device->dev->persist->num_vfs; slave >= 0; --slave) {
794 list_for_each_entry_safe(p, t,
795 &device->pkeys.pkey_port_list[slave],
796 entry) {
797 list_del(&p->entry);
798 port = container_of(p, struct mlx4_port, kobj);
799 sysfs_remove_group(p, &port->pkey_group);
800 sysfs_remove_group(p, &port->gid_group);
801 remove_vf_smi_entries(port);
802 kobject_put(p);
803 kobject_put(device->dev_ports_parent[slave]);
804 }
805 kobject_put(device->dev_ports_parent[slave]);
806 kobject_put(device->pkeys.device_parent[slave]);
807 kobject_put(device->pkeys.device_parent[slave]);
808 kobject_put(device->iov_parent);
809 }
810 }
811
812 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *dev)
813 {
814 int i;
815 int ret = 0;
816
817 if (!mlx4_is_master(dev->dev))
818 return 0;
819
820 dev->iov_parent =
821 kobject_create_and_add("iov",
822 kobject_get(dev->ib_dev.ports_parent->parent));
823 if (!dev->iov_parent) {
824 ret = -ENOMEM;
825 goto err;
826 }
827 dev->ports_parent =
828 kobject_create_and_add("ports",
829 kobject_get(dev->iov_parent));
830 if (!dev->ports_parent) {
831 ret = -ENOMEM;
832 goto err_ports;
833 }
834
835 for (i = 1; i <= dev->ib_dev.phys_port_cnt; ++i) {
836 ret = add_port_entries(dev, i);
837 if (ret)
838 goto err_add_entries;
839 }
840
841 ret = register_pkey_tree(dev);
842 if (ret)
843 goto err_add_entries;
844 return 0;
845
846 err_add_entries:
847 kobject_put(dev->ports_parent);
848
849 err_ports:
850 kobject_put(dev->iov_parent);
851 err:
852 kobject_put(dev->ib_dev.ports_parent->parent);
853 pr_err("mlx4_ib_device_register_sysfs error (%d)\n", ret);
854 return ret;
855 }
856
857 static void unregister_alias_guid_tree(struct mlx4_ib_dev *device)
858 {
859 struct mlx4_ib_iov_port *p;
860 int i;
861
862 if (!mlx4_is_master(device->dev))
863 return;
864
865 for (i = 0; i < device->dev->caps.num_ports; i++) {
866 p = &device->iov_ports[i];
867 kobject_put(p->admin_alias_parent);
868 kobject_put(p->gids_parent);
869 kobject_put(p->pkeys_parent);
870 kobject_put(p->mcgs_parent);
871 kobject_put(p->cur_port);
872 kobject_put(p->cur_port);
873 kobject_put(p->cur_port);
874 kobject_put(p->cur_port);
875 kobject_put(p->cur_port);
876 kobject_put(p->dev->ports_parent);
877 kfree(p->dentr_ar);
878 }
879 }
880
881 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device)
882 {
883 unregister_alias_guid_tree(device);
884 unregister_pkey_tree(device);
885 kobject_put(device->ports_parent);
886 kobject_put(device->iov_parent);
887 kobject_put(device->iov_parent);
888 kobject_put(device->ib_dev.ports_parent->parent);
889 }
Linux with added FPC-III support