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c1e7e466 JM |
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 | int record_num;/*0-15*/ | |
50 | int guid_index_in_rec; /*0 - 7*/ | |
51 | struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = | |
52 | container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); | |
53 | struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; | |
54 | struct mlx4_ib_dev *mdev = port->dev; | |
55 | ||
56 | record_num = mlx4_ib_iov_dentry->entry_num / 8 ; | |
57 | guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8 ; | |
58 | ||
59 | return sprintf(buf, "%llx\n", | |
60 | be64_to_cpu(*(__be64 *)&mdev->sriov.alias_guid. | |
61 | ports_guid[port->num - 1]. | |
62 | all_rec_per_port[record_num]. | |
63 | all_recs[8 * guid_index_in_rec])); | |
64 | } | |
65 | ||
66 | /* store_admin_alias_guid stores the (new) administratively assigned value of that GUID. | |
67 | * Values in buf parameter string: | |
68 | * 0 - requests opensm to assign a value. | |
69 | * 0xffffffffffffffff - delete this entry. | |
70 | * other - guid value assigned by the administrator. | |
71 | */ | |
72 | static ssize_t store_admin_alias_guid(struct device *dev, | |
73 | struct device_attribute *attr, | |
74 | const char *buf, size_t count) | |
75 | { | |
76 | int record_num;/*0-15*/ | |
77 | int guid_index_in_rec; /*0 - 7*/ | |
78 | struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = | |
79 | container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); | |
80 | struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; | |
81 | struct mlx4_ib_dev *mdev = port->dev; | |
82 | u64 sysadmin_ag_val; | |
83 | ||
84 | record_num = mlx4_ib_iov_dentry->entry_num / 8; | |
85 | guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8; | |
86 | if (0 == record_num && 0 == guid_index_in_rec) { | |
87 | pr_err("GUID 0 block 0 is RO\n"); | |
88 | return count; | |
89 | } | |
90 | sscanf(buf, "%llx", &sysadmin_ag_val); | |
91 | *(__be64 *)&mdev->sriov.alias_guid.ports_guid[port->num - 1]. | |
92 | all_rec_per_port[record_num]. | |
93 | all_recs[GUID_REC_SIZE * guid_index_in_rec] = | |
94 | cpu_to_be64(sysadmin_ag_val); | |
95 | ||
96 | /* Change the state to be pending for update */ | |
97 | mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].status | |
98 | = MLX4_GUID_INFO_STATUS_IDLE ; | |
99 | ||
100 | mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].method | |
101 | = MLX4_GUID_INFO_RECORD_SET; | |
102 | ||
103 | switch (sysadmin_ag_val) { | |
104 | case MLX4_GUID_FOR_DELETE_VAL: | |
105 | mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].method | |
106 | = MLX4_GUID_INFO_RECORD_DELETE; | |
107 | mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership | |
108 | = MLX4_GUID_SYSADMIN_ASSIGN; | |
109 | break; | |
110 | /* The sysadmin requests the SM to re-assign */ | |
111 | case MLX4_NOT_SET_GUID: | |
112 | mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership | |
113 | = MLX4_GUID_DRIVER_ASSIGN; | |
114 | break; | |
115 | /* The sysadmin requests a specific value.*/ | |
116 | default: | |
117 | mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership | |
118 | = MLX4_GUID_SYSADMIN_ASSIGN; | |
119 | break; | |
120 | } | |
121 | ||
122 | /* set the record index */ | |
123 | mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].guid_indexes | |
124 | = mlx4_ib_get_aguid_comp_mask_from_ix(guid_index_in_rec); | |
125 | ||
126 | mlx4_ib_init_alias_guid_work(mdev, port->num - 1); | |
127 | ||
128 | return count; | |
129 | } | |
130 | ||
131 | static ssize_t show_port_gid(struct device *dev, | |
132 | struct device_attribute *attr, | |
133 | char *buf) | |
134 | { | |
135 | struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = | |
136 | container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); | |
137 | struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; | |
138 | struct mlx4_ib_dev *mdev = port->dev; | |
139 | union ib_gid gid; | |
140 | ssize_t ret; | |
141 | ||
142 | ret = __mlx4_ib_query_gid(&mdev->ib_dev, port->num, | |
143 | mlx4_ib_iov_dentry->entry_num, &gid, 1); | |
144 | if (ret) | |
145 | return ret; | |
146 | ret = sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", | |
147 | be16_to_cpu(((__be16 *) gid.raw)[0]), | |
148 | be16_to_cpu(((__be16 *) gid.raw)[1]), | |
149 | be16_to_cpu(((__be16 *) gid.raw)[2]), | |
150 | be16_to_cpu(((__be16 *) gid.raw)[3]), | |
151 | be16_to_cpu(((__be16 *) gid.raw)[4]), | |
152 | be16_to_cpu(((__be16 *) gid.raw)[5]), | |
153 | be16_to_cpu(((__be16 *) gid.raw)[6]), | |
154 | be16_to_cpu(((__be16 *) gid.raw)[7])); | |
155 | return ret; | |
156 | } | |
157 | ||
158 | static ssize_t show_phys_port_pkey(struct device *dev, | |
159 | struct device_attribute *attr, | |
160 | char *buf) | |
161 | { | |
162 | struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = | |
163 | container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); | |
164 | struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; | |
165 | struct mlx4_ib_dev *mdev = port->dev; | |
166 | u16 pkey; | |
167 | ssize_t ret; | |
168 | ||
169 | ret = __mlx4_ib_query_pkey(&mdev->ib_dev, port->num, | |
170 | mlx4_ib_iov_dentry->entry_num, &pkey, 1); | |
171 | if (ret) | |
172 | return ret; | |
173 | ||
174 | return sprintf(buf, "0x%04x\n", pkey); | |
175 | } | |
176 | ||
177 | #define DENTRY_REMOVE(_dentry) \ | |
178 | do { \ | |
179 | sysfs_remove_file((_dentry)->kobj, &(_dentry)->dentry.attr); \ | |
180 | } while (0); | |
181 | ||
182 | static int create_sysfs_entry(void *_ctx, struct mlx4_ib_iov_sysfs_attr *_dentry, | |
183 | char *_name, struct kobject *_kobj, | |
184 | ssize_t (*show)(struct device *dev, | |
185 | struct device_attribute *attr, | |
186 | char *buf), | |
187 | ssize_t (*store)(struct device *dev, | |
188 | struct device_attribute *attr, | |
189 | const char *buf, size_t count) | |
190 | ) | |
191 | { | |
192 | int ret = 0; | |
193 | struct mlx4_ib_iov_sysfs_attr *vdentry = _dentry; | |
194 | ||
195 | vdentry->ctx = _ctx; | |
196 | vdentry->dentry.show = show; | |
197 | vdentry->dentry.store = store; | |
198 | sysfs_attr_init(&vdentry->dentry.attr); | |
199 | vdentry->dentry.attr.name = vdentry->name; | |
200 | vdentry->dentry.attr.mode = 0; | |
201 | vdentry->kobj = _kobj; | |
202 | snprintf(vdentry->name, 15, "%s", _name); | |
203 | ||
204 | if (vdentry->dentry.store) | |
205 | vdentry->dentry.attr.mode |= S_IWUSR; | |
206 | ||
207 | if (vdentry->dentry.show) | |
208 | vdentry->dentry.attr.mode |= S_IRUGO; | |
209 | ||
210 | ret = sysfs_create_file(vdentry->kobj, &vdentry->dentry.attr); | |
211 | if (ret) { | |
212 | pr_err("failed to create %s\n", vdentry->dentry.attr.name); | |
213 | vdentry->ctx = NULL; | |
214 | return ret; | |
215 | } | |
216 | ||
217 | return ret; | |
218 | } | |
219 | ||
220 | int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, | |
221 | struct attribute *attr) | |
222 | { | |
223 | struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1]; | |
224 | int ret; | |
225 | ||
226 | ret = sysfs_create_file(port->mcgs_parent, attr); | |
227 | if (ret) | |
228 | pr_err("failed to create %s\n", attr->name); | |
229 | ||
230 | return ret; | |
231 | } | |
232 | ||
233 | void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, | |
234 | struct attribute *attr) | |
235 | { | |
236 | struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1]; | |
237 | ||
238 | sysfs_remove_file(port->mcgs_parent, attr); | |
239 | } | |
240 | ||
241 | static int add_port_entries(struct mlx4_ib_dev *device, int port_num) | |
242 | { | |
243 | int i; | |
244 | char buff[10]; | |
245 | struct mlx4_ib_iov_port *port = NULL; | |
246 | int ret = 0 ; | |
247 | struct ib_port_attr attr; | |
248 | ||
249 | /* get the physical gid and pkey table sizes.*/ | |
250 | ret = __mlx4_ib_query_port(&device->ib_dev, port_num, &attr, 1); | |
251 | if (ret) | |
252 | goto err; | |
253 | ||
254 | port = &device->iov_ports[port_num - 1]; | |
255 | port->dev = device; | |
256 | port->num = port_num; | |
257 | /* Directory structure: | |
258 | * iov - | |
259 | * port num - | |
260 | * admin_guids | |
261 | * gids (operational) | |
262 | * mcg_table | |
263 | */ | |
264 | port->dentr_ar = kzalloc(sizeof (struct mlx4_ib_iov_sysfs_attr_ar), | |
265 | GFP_KERNEL); | |
266 | if (!port->dentr_ar) { | |
267 | ret = -ENOMEM; | |
268 | goto err; | |
269 | } | |
270 | sprintf(buff, "%d", port_num); | |
271 | port->cur_port = kobject_create_and_add(buff, | |
272 | kobject_get(device->ports_parent)); | |
273 | if (!port->cur_port) { | |
274 | ret = -ENOMEM; | |
275 | goto kobj_create_err; | |
276 | } | |
277 | /* admin GUIDs */ | |
278 | port->admin_alias_parent = kobject_create_and_add("admin_guids", | |
279 | kobject_get(port->cur_port)); | |
280 | if (!port->admin_alias_parent) { | |
281 | ret = -ENOMEM; | |
282 | goto err_admin_guids; | |
283 | } | |
284 | for (i = 0 ; i < attr.gid_tbl_len; i++) { | |
285 | sprintf(buff, "%d", i); | |
286 | port->dentr_ar->dentries[i].entry_num = i; | |
287 | ret = create_sysfs_entry(port, &port->dentr_ar->dentries[i], | |
288 | buff, port->admin_alias_parent, | |
289 | show_admin_alias_guid, store_admin_alias_guid); | |
290 | if (ret) | |
291 | goto err_admin_alias_parent; | |
292 | } | |
293 | ||
294 | /* gids subdirectory (operational gids) */ | |
295 | port->gids_parent = kobject_create_and_add("gids", | |
296 | kobject_get(port->cur_port)); | |
297 | if (!port->gids_parent) { | |
298 | ret = -ENOMEM; | |
299 | goto err_gids; | |
300 | } | |
301 | ||
302 | for (i = 0 ; i < attr.gid_tbl_len; i++) { | |
303 | sprintf(buff, "%d", i); | |
304 | port->dentr_ar->dentries[attr.gid_tbl_len + i].entry_num = i; | |
305 | ret = create_sysfs_entry(port, | |
306 | &port->dentr_ar->dentries[attr.gid_tbl_len + i], | |
307 | buff, | |
308 | port->gids_parent, show_port_gid, NULL); | |
309 | if (ret) | |
310 | goto err_gids_parent; | |
311 | } | |
312 | ||
313 | /* physical port pkey table */ | |
314 | port->pkeys_parent = | |
315 | kobject_create_and_add("pkeys", kobject_get(port->cur_port)); | |
316 | if (!port->pkeys_parent) { | |
317 | ret = -ENOMEM; | |
318 | goto err_pkeys; | |
319 | } | |
320 | ||
321 | for (i = 0 ; i < attr.pkey_tbl_len; i++) { | |
322 | sprintf(buff, "%d", i); | |
323 | port->dentr_ar->dentries[2 * attr.gid_tbl_len + i].entry_num = i; | |
324 | ret = create_sysfs_entry(port, | |
325 | &port->dentr_ar->dentries[2 * attr.gid_tbl_len + i], | |
326 | buff, port->pkeys_parent, | |
327 | show_phys_port_pkey, NULL); | |
328 | if (ret) | |
329 | goto err_pkeys_parent; | |
330 | } | |
331 | ||
332 | /* MCGs table */ | |
333 | port->mcgs_parent = | |
334 | kobject_create_and_add("mcgs", kobject_get(port->cur_port)); | |
335 | if (!port->mcgs_parent) { | |
336 | ret = -ENOMEM; | |
337 | goto err_mcgs; | |
338 | } | |
339 | return 0; | |
340 | ||
341 | err_mcgs: | |
342 | kobject_put(port->cur_port); | |
343 | ||
344 | err_pkeys_parent: | |
345 | kobject_put(port->pkeys_parent); | |
346 | ||
347 | err_pkeys: | |
348 | kobject_put(port->cur_port); | |
349 | ||
350 | err_gids_parent: | |
351 | kobject_put(port->gids_parent); | |
352 | ||
353 | err_gids: | |
354 | kobject_put(port->cur_port); | |
355 | ||
356 | err_admin_alias_parent: | |
357 | kobject_put(port->admin_alias_parent); | |
358 | ||
359 | err_admin_guids: | |
360 | kobject_put(port->cur_port); | |
361 | kobject_put(port->cur_port); /* once more for create_and_add buff */ | |
362 | ||
363 | kobj_create_err: | |
364 | kobject_put(device->ports_parent); | |
365 | kfree(port->dentr_ar); | |
366 | ||
367 | err: | |
368 | pr_err("add_port_entries FAILED: for port:%d, error: %d\n", | |
369 | port_num, ret); | |
370 | return ret; | |
371 | } | |
372 | ||
373 | static void get_name(struct mlx4_ib_dev *dev, char *name, int i, int max) | |
374 | { | |
375 | char base_name[9]; | |
376 | ||
377 | /* pci_name format is: bus:dev:func -> xxxx:yy:zz.n */ | |
378 | strlcpy(name, pci_name(dev->dev->pdev), max); | |
379 | strncpy(base_name, name, 8); /*till xxxx:yy:*/ | |
380 | base_name[8] = '\0'; | |
381 | /* with no ARI only 3 last bits are used so when the fn is higher than 8 | |
382 | * need to add it to the dev num, so count in the last number will be | |
383 | * modulo 8 */ | |
384 | sprintf(name, "%s%.2d.%d", base_name, (i/8), (i%8)); | |
385 | } | |
386 | ||
387 | struct mlx4_port { | |
388 | struct kobject kobj; | |
389 | struct mlx4_ib_dev *dev; | |
390 | struct attribute_group pkey_group; | |
391 | struct attribute_group gid_group; | |
65fed8a8 JM |
392 | struct device_attribute enable_smi_admin; |
393 | struct device_attribute smi_enabled; | |
c1e7e466 | 394 | int slave; |
65fed8a8 | 395 | u8 port_num; |
c1e7e466 JM |
396 | }; |
397 | ||
398 | ||
399 | static void mlx4_port_release(struct kobject *kobj) | |
400 | { | |
401 | struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); | |
402 | struct attribute *a; | |
403 | int i; | |
404 | ||
405 | for (i = 0; (a = p->pkey_group.attrs[i]); ++i) | |
406 | kfree(a); | |
407 | kfree(p->pkey_group.attrs); | |
408 | for (i = 0; (a = p->gid_group.attrs[i]); ++i) | |
409 | kfree(a); | |
410 | kfree(p->gid_group.attrs); | |
411 | kfree(p); | |
412 | } | |
413 | ||
414 | struct port_attribute { | |
415 | struct attribute attr; | |
416 | ssize_t (*show)(struct mlx4_port *, struct port_attribute *, char *buf); | |
417 | ssize_t (*store)(struct mlx4_port *, struct port_attribute *, | |
418 | const char *buf, size_t count); | |
419 | }; | |
420 | ||
421 | static ssize_t port_attr_show(struct kobject *kobj, | |
422 | struct attribute *attr, char *buf) | |
423 | { | |
424 | struct port_attribute *port_attr = | |
425 | container_of(attr, struct port_attribute, attr); | |
426 | struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); | |
427 | ||
428 | if (!port_attr->show) | |
429 | return -EIO; | |
430 | return port_attr->show(p, port_attr, buf); | |
431 | } | |
432 | ||
433 | static ssize_t port_attr_store(struct kobject *kobj, | |
434 | struct attribute *attr, | |
435 | const char *buf, size_t size) | |
436 | { | |
437 | struct port_attribute *port_attr = | |
438 | container_of(attr, struct port_attribute, attr); | |
439 | struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); | |
440 | ||
441 | if (!port_attr->store) | |
442 | return -EIO; | |
443 | return port_attr->store(p, port_attr, buf, size); | |
444 | } | |
445 | ||
446 | static const struct sysfs_ops port_sysfs_ops = { | |
447 | .show = port_attr_show, | |
448 | .store = port_attr_store, | |
449 | }; | |
450 | ||
451 | static struct kobj_type port_type = { | |
452 | .release = mlx4_port_release, | |
453 | .sysfs_ops = &port_sysfs_ops, | |
454 | }; | |
455 | ||
456 | struct port_table_attribute { | |
457 | struct port_attribute attr; | |
458 | char name[8]; | |
459 | int index; | |
460 | }; | |
461 | ||
462 | static ssize_t show_port_pkey(struct mlx4_port *p, struct port_attribute *attr, | |
463 | char *buf) | |
464 | { | |
465 | struct port_table_attribute *tab_attr = | |
466 | container_of(attr, struct port_table_attribute, attr); | |
467 | ssize_t ret = -ENODEV; | |
468 | ||
469 | if (p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1][tab_attr->index] >= | |
470 | (p->dev->dev->caps.pkey_table_len[p->port_num])) | |
471 | ret = sprintf(buf, "none\n"); | |
472 | else | |
473 | ret = sprintf(buf, "%d\n", | |
474 | p->dev->pkeys.virt2phys_pkey[p->slave] | |
475 | [p->port_num - 1][tab_attr->index]); | |
476 | return ret; | |
477 | } | |
478 | ||
479 | static ssize_t store_port_pkey(struct mlx4_port *p, struct port_attribute *attr, | |
480 | const char *buf, size_t count) | |
481 | { | |
482 | struct port_table_attribute *tab_attr = | |
483 | container_of(attr, struct port_table_attribute, attr); | |
484 | int idx; | |
485 | int err; | |
486 | ||
487 | /* do not allow remapping Dom0 virtual pkey table */ | |
488 | if (p->slave == mlx4_master_func_num(p->dev->dev)) | |
489 | return -EINVAL; | |
490 | ||
491 | if (!strncasecmp(buf, "no", 2)) | |
492 | idx = p->dev->dev->phys_caps.pkey_phys_table_len[p->port_num] - 1; | |
493 | else if (sscanf(buf, "%i", &idx) != 1 || | |
494 | idx >= p->dev->dev->caps.pkey_table_len[p->port_num] || | |
495 | idx < 0) | |
496 | return -EINVAL; | |
497 | ||
498 | p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1] | |
499 | [tab_attr->index] = idx; | |
500 | mlx4_sync_pkey_table(p->dev->dev, p->slave, p->port_num, | |
501 | tab_attr->index, idx); | |
502 | err = mlx4_gen_pkey_eqe(p->dev->dev, p->slave, p->port_num); | |
503 | if (err) { | |
504 | pr_err("mlx4_gen_pkey_eqe failed for slave %d," | |
505 | " port %d, index %d\n", p->slave, p->port_num, idx); | |
506 | return err; | |
507 | } | |
508 | return count; | |
509 | } | |
510 | ||
511 | static ssize_t show_port_gid_idx(struct mlx4_port *p, | |
512 | struct port_attribute *attr, char *buf) | |
513 | { | |
514 | return sprintf(buf, "%d\n", p->slave); | |
515 | } | |
516 | ||
517 | static struct attribute ** | |
518 | alloc_group_attrs(ssize_t (*show)(struct mlx4_port *, | |
519 | struct port_attribute *, char *buf), | |
520 | ssize_t (*store)(struct mlx4_port *, struct port_attribute *, | |
521 | const char *buf, size_t count), | |
522 | int len) | |
523 | { | |
524 | struct attribute **tab_attr; | |
525 | struct port_table_attribute *element; | |
526 | int i; | |
527 | ||
528 | tab_attr = kcalloc(1 + len, sizeof (struct attribute *), GFP_KERNEL); | |
529 | if (!tab_attr) | |
530 | return NULL; | |
531 | ||
532 | for (i = 0; i < len; i++) { | |
533 | element = kzalloc(sizeof (struct port_table_attribute), | |
534 | GFP_KERNEL); | |
535 | if (!element) | |
536 | goto err; | |
537 | if (snprintf(element->name, sizeof (element->name), | |
538 | "%d", i) >= sizeof (element->name)) { | |
539 | kfree(element); | |
540 | goto err; | |
541 | } | |
542 | sysfs_attr_init(&element->attr.attr); | |
543 | element->attr.attr.name = element->name; | |
544 | if (store) { | |
545 | element->attr.attr.mode = S_IWUSR | S_IRUGO; | |
546 | element->attr.store = store; | |
547 | } else | |
548 | element->attr.attr.mode = S_IRUGO; | |
549 | ||
550 | element->attr.show = show; | |
551 | element->index = i; | |
552 | tab_attr[i] = &element->attr.attr; | |
553 | } | |
554 | return tab_attr; | |
555 | ||
556 | err: | |
557 | while (--i >= 0) | |
558 | kfree(tab_attr[i]); | |
559 | kfree(tab_attr); | |
560 | return NULL; | |
561 | } | |
562 | ||
65fed8a8 JM |
563 | static ssize_t sysfs_show_smi_enabled(struct device *dev, |
564 | struct device_attribute *attr, char *buf) | |
565 | { | |
566 | struct mlx4_port *p = | |
567 | container_of(attr, struct mlx4_port, smi_enabled); | |
568 | ssize_t len = 0; | |
569 | ||
570 | if (mlx4_vf_smi_enabled(p->dev->dev, p->slave, p->port_num)) | |
571 | len = sprintf(buf, "%d\n", 1); | |
572 | else | |
573 | len = sprintf(buf, "%d\n", 0); | |
574 | ||
575 | return len; | |
576 | } | |
577 | ||
578 | static ssize_t sysfs_show_enable_smi_admin(struct device *dev, | |
579 | struct device_attribute *attr, | |
580 | char *buf) | |
581 | { | |
582 | struct mlx4_port *p = | |
583 | container_of(attr, struct mlx4_port, enable_smi_admin); | |
584 | ssize_t len = 0; | |
585 | ||
586 | if (mlx4_vf_get_enable_smi_admin(p->dev->dev, p->slave, p->port_num)) | |
587 | len = sprintf(buf, "%d\n", 1); | |
588 | else | |
589 | len = sprintf(buf, "%d\n", 0); | |
590 | ||
591 | return len; | |
592 | } | |
593 | ||
594 | static ssize_t sysfs_store_enable_smi_admin(struct device *dev, | |
595 | struct device_attribute *attr, | |
596 | const char *buf, size_t count) | |
597 | { | |
598 | struct mlx4_port *p = | |
599 | container_of(attr, struct mlx4_port, enable_smi_admin); | |
600 | int enable; | |
601 | ||
602 | if (sscanf(buf, "%i", &enable) != 1 || | |
603 | enable < 0 || enable > 1) | |
604 | return -EINVAL; | |
605 | ||
606 | if (mlx4_vf_set_enable_smi_admin(p->dev->dev, p->slave, p->port_num, enable)) | |
607 | return -EINVAL; | |
608 | return count; | |
609 | } | |
610 | ||
611 | static int add_vf_smi_entries(struct mlx4_port *p) | |
612 | { | |
613 | int is_eth = rdma_port_get_link_layer(&p->dev->ib_dev, p->port_num) == | |
614 | IB_LINK_LAYER_ETHERNET; | |
615 | int ret; | |
616 | ||
617 | /* do not display entries if eth transport, or if master */ | |
618 | if (is_eth || p->slave == mlx4_master_func_num(p->dev->dev)) | |
619 | return 0; | |
620 | ||
621 | sysfs_attr_init(&p->smi_enabled.attr); | |
622 | p->smi_enabled.show = sysfs_show_smi_enabled; | |
623 | p->smi_enabled.store = NULL; | |
624 | p->smi_enabled.attr.name = "smi_enabled"; | |
625 | p->smi_enabled.attr.mode = 0444; | |
626 | ret = sysfs_create_file(&p->kobj, &p->smi_enabled.attr); | |
627 | if (ret) { | |
628 | pr_err("failed to create smi_enabled\n"); | |
629 | return ret; | |
630 | } | |
631 | ||
632 | sysfs_attr_init(&p->enable_smi_admin.attr); | |
633 | p->enable_smi_admin.show = sysfs_show_enable_smi_admin; | |
634 | p->enable_smi_admin.store = sysfs_store_enable_smi_admin; | |
635 | p->enable_smi_admin.attr.name = "enable_smi_admin"; | |
636 | p->enable_smi_admin.attr.mode = 0644; | |
637 | ret = sysfs_create_file(&p->kobj, &p->enable_smi_admin.attr); | |
638 | if (ret) { | |
639 | pr_err("failed to create enable_smi_admin\n"); | |
640 | sysfs_remove_file(&p->kobj, &p->smi_enabled.attr); | |
641 | return ret; | |
642 | } | |
643 | return 0; | |
644 | } | |
645 | ||
646 | static void remove_vf_smi_entries(struct mlx4_port *p) | |
647 | { | |
648 | int is_eth = rdma_port_get_link_layer(&p->dev->ib_dev, p->port_num) == | |
649 | IB_LINK_LAYER_ETHERNET; | |
650 | ||
651 | if (is_eth || p->slave == mlx4_master_func_num(p->dev->dev)) | |
652 | return; | |
653 | ||
654 | sysfs_remove_file(&p->kobj, &p->smi_enabled.attr); | |
655 | sysfs_remove_file(&p->kobj, &p->enable_smi_admin.attr); | |
656 | } | |
657 | ||
c1e7e466 JM |
658 | static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave) |
659 | { | |
660 | struct mlx4_port *p; | |
661 | int i; | |
662 | int ret; | |
663 | ||
664 | p = kzalloc(sizeof *p, GFP_KERNEL); | |
665 | if (!p) | |
666 | return -ENOMEM; | |
667 | ||
668 | p->dev = dev; | |
669 | p->port_num = port_num; | |
670 | p->slave = slave; | |
671 | ||
672 | ret = kobject_init_and_add(&p->kobj, &port_type, | |
673 | kobject_get(dev->dev_ports_parent[slave]), | |
674 | "%d", port_num); | |
675 | if (ret) | |
676 | goto err_alloc; | |
677 | ||
678 | p->pkey_group.name = "pkey_idx"; | |
679 | p->pkey_group.attrs = | |
680 | alloc_group_attrs(show_port_pkey, store_port_pkey, | |
681 | dev->dev->caps.pkey_table_len[port_num]); | |
af2e2e35 JL |
682 | if (!p->pkey_group.attrs) { |
683 | ret = -ENOMEM; | |
c1e7e466 | 684 | goto err_alloc; |
af2e2e35 | 685 | } |
c1e7e466 JM |
686 | |
687 | ret = sysfs_create_group(&p->kobj, &p->pkey_group); | |
688 | if (ret) | |
689 | goto err_free_pkey; | |
690 | ||
691 | p->gid_group.name = "gid_idx"; | |
692 | p->gid_group.attrs = alloc_group_attrs(show_port_gid_idx, NULL, 1); | |
af2e2e35 JL |
693 | if (!p->gid_group.attrs) { |
694 | ret = -ENOMEM; | |
c1e7e466 | 695 | goto err_free_pkey; |
af2e2e35 | 696 | } |
c1e7e466 JM |
697 | |
698 | ret = sysfs_create_group(&p->kobj, &p->gid_group); | |
699 | if (ret) | |
700 | goto err_free_gid; | |
701 | ||
65fed8a8 JM |
702 | ret = add_vf_smi_entries(p); |
703 | if (ret) | |
704 | goto err_free_gid; | |
705 | ||
c1e7e466 JM |
706 | list_add_tail(&p->kobj.entry, &dev->pkeys.pkey_port_list[slave]); |
707 | return 0; | |
708 | ||
709 | err_free_gid: | |
710 | kfree(p->gid_group.attrs[0]); | |
711 | kfree(p->gid_group.attrs); | |
712 | ||
713 | err_free_pkey: | |
714 | for (i = 0; i < dev->dev->caps.pkey_table_len[port_num]; ++i) | |
715 | kfree(p->pkey_group.attrs[i]); | |
716 | kfree(p->pkey_group.attrs); | |
717 | ||
718 | err_alloc: | |
719 | kobject_put(dev->dev_ports_parent[slave]); | |
720 | kfree(p); | |
721 | return ret; | |
722 | } | |
723 | ||
724 | static int register_one_pkey_tree(struct mlx4_ib_dev *dev, int slave) | |
725 | { | |
726 | char name[32]; | |
727 | int err; | |
728 | int port; | |
729 | struct kobject *p, *t; | |
730 | struct mlx4_port *mport; | |
449fc488 | 731 | struct mlx4_active_ports actv_ports; |
c1e7e466 JM |
732 | |
733 | get_name(dev, name, slave, sizeof name); | |
734 | ||
735 | dev->pkeys.device_parent[slave] = | |
736 | kobject_create_and_add(name, kobject_get(dev->iov_parent)); | |
737 | ||
738 | if (!dev->pkeys.device_parent[slave]) { | |
739 | err = -ENOMEM; | |
740 | goto fail_dev; | |
741 | } | |
742 | ||
743 | INIT_LIST_HEAD(&dev->pkeys.pkey_port_list[slave]); | |
744 | ||
745 | dev->dev_ports_parent[slave] = | |
746 | kobject_create_and_add("ports", | |
747 | kobject_get(dev->pkeys.device_parent[slave])); | |
748 | ||
749 | if (!dev->dev_ports_parent[slave]) { | |
750 | err = -ENOMEM; | |
751 | goto err_ports; | |
752 | } | |
753 | ||
449fc488 MB |
754 | actv_ports = mlx4_get_active_ports(dev->dev, slave); |
755 | ||
c1e7e466 | 756 | for (port = 1; port <= dev->dev->caps.num_ports; ++port) { |
449fc488 MB |
757 | if (!test_bit(port - 1, actv_ports.ports)) |
758 | continue; | |
c1e7e466 JM |
759 | err = add_port(dev, port, slave); |
760 | if (err) | |
761 | goto err_add; | |
762 | } | |
763 | return 0; | |
764 | ||
765 | err_add: | |
766 | list_for_each_entry_safe(p, t, | |
767 | &dev->pkeys.pkey_port_list[slave], | |
768 | entry) { | |
769 | list_del(&p->entry); | |
770 | mport = container_of(p, struct mlx4_port, kobj); | |
771 | sysfs_remove_group(p, &mport->pkey_group); | |
772 | sysfs_remove_group(p, &mport->gid_group); | |
65fed8a8 | 773 | remove_vf_smi_entries(mport); |
c1e7e466 JM |
774 | kobject_put(p); |
775 | } | |
776 | kobject_put(dev->dev_ports_parent[slave]); | |
777 | ||
778 | err_ports: | |
779 | kobject_put(dev->pkeys.device_parent[slave]); | |
780 | /* extra put for the device_parent create_and_add */ | |
781 | kobject_put(dev->pkeys.device_parent[slave]); | |
782 | ||
783 | fail_dev: | |
784 | kobject_put(dev->iov_parent); | |
785 | return err; | |
786 | } | |
787 | ||
788 | static int register_pkey_tree(struct mlx4_ib_dev *device) | |
789 | { | |
790 | int i; | |
791 | ||
792 | if (!mlx4_is_master(device->dev)) | |
793 | return 0; | |
794 | ||
795 | for (i = 0; i <= device->dev->num_vfs; ++i) | |
796 | register_one_pkey_tree(device, i); | |
797 | ||
798 | return 0; | |
799 | } | |
800 | ||
801 | static void unregister_pkey_tree(struct mlx4_ib_dev *device) | |
802 | { | |
803 | int slave; | |
804 | struct kobject *p, *t; | |
805 | struct mlx4_port *port; | |
806 | ||
807 | if (!mlx4_is_master(device->dev)) | |
808 | return; | |
809 | ||
810 | for (slave = device->dev->num_vfs; slave >= 0; --slave) { | |
811 | list_for_each_entry_safe(p, t, | |
812 | &device->pkeys.pkey_port_list[slave], | |
813 | entry) { | |
814 | list_del(&p->entry); | |
815 | port = container_of(p, struct mlx4_port, kobj); | |
816 | sysfs_remove_group(p, &port->pkey_group); | |
817 | sysfs_remove_group(p, &port->gid_group); | |
65fed8a8 | 818 | remove_vf_smi_entries(port); |
c1e7e466 JM |
819 | kobject_put(p); |
820 | kobject_put(device->dev_ports_parent[slave]); | |
821 | } | |
822 | kobject_put(device->dev_ports_parent[slave]); | |
823 | kobject_put(device->pkeys.device_parent[slave]); | |
824 | kobject_put(device->pkeys.device_parent[slave]); | |
825 | kobject_put(device->iov_parent); | |
826 | } | |
827 | } | |
828 | ||
829 | int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *dev) | |
830 | { | |
831 | int i; | |
832 | int ret = 0; | |
833 | ||
834 | if (!mlx4_is_master(dev->dev)) | |
835 | return 0; | |
836 | ||
837 | dev->iov_parent = | |
838 | kobject_create_and_add("iov", | |
839 | kobject_get(dev->ib_dev.ports_parent->parent)); | |
840 | if (!dev->iov_parent) { | |
841 | ret = -ENOMEM; | |
842 | goto err; | |
843 | } | |
844 | dev->ports_parent = | |
845 | kobject_create_and_add("ports", | |
846 | kobject_get(dev->iov_parent)); | |
6950a235 | 847 | if (!dev->ports_parent) { |
c1e7e466 JM |
848 | ret = -ENOMEM; |
849 | goto err_ports; | |
850 | } | |
851 | ||
852 | for (i = 1; i <= dev->ib_dev.phys_port_cnt; ++i) { | |
853 | ret = add_port_entries(dev, i); | |
854 | if (ret) | |
855 | goto err_add_entries; | |
856 | } | |
857 | ||
858 | ret = register_pkey_tree(dev); | |
859 | if (ret) | |
860 | goto err_add_entries; | |
861 | return 0; | |
862 | ||
863 | err_add_entries: | |
864 | kobject_put(dev->ports_parent); | |
865 | ||
866 | err_ports: | |
867 | kobject_put(dev->iov_parent); | |
868 | err: | |
869 | kobject_put(dev->ib_dev.ports_parent->parent); | |
870 | pr_err("mlx4_ib_device_register_sysfs error (%d)\n", ret); | |
871 | return ret; | |
872 | } | |
873 | ||
874 | static void unregister_alias_guid_tree(struct mlx4_ib_dev *device) | |
875 | { | |
876 | struct mlx4_ib_iov_port *p; | |
877 | int i; | |
878 | ||
879 | if (!mlx4_is_master(device->dev)) | |
880 | return; | |
881 | ||
882 | for (i = 0; i < device->dev->caps.num_ports; i++) { | |
883 | p = &device->iov_ports[i]; | |
884 | kobject_put(p->admin_alias_parent); | |
885 | kobject_put(p->gids_parent); | |
886 | kobject_put(p->pkeys_parent); | |
887 | kobject_put(p->mcgs_parent); | |
888 | kobject_put(p->cur_port); | |
889 | kobject_put(p->cur_port); | |
890 | kobject_put(p->cur_port); | |
891 | kobject_put(p->cur_port); | |
892 | kobject_put(p->cur_port); | |
893 | kobject_put(p->dev->ports_parent); | |
894 | kfree(p->dentr_ar); | |
895 | } | |
896 | } | |
897 | ||
898 | void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device) | |
899 | { | |
900 | unregister_alias_guid_tree(device); | |
901 | unregister_pkey_tree(device); | |
902 | kobject_put(device->ports_parent); | |
903 | kobject_put(device->iov_parent); | |
904 | kobject_put(device->iov_parent); | |
905 | kobject_put(device->ib_dev.ports_parent->parent); | |
906 | } |