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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 | { | |
c1e7e466 JM |
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; | |
2350f247 | 53 | __be64 sysadmin_ag_val; |
c1e7e466 | 54 | |
2350f247 YH |
55 | sysadmin_ag_val = mlx4_get_admin_guid(mdev->dev, |
56 | mlx4_ib_iov_dentry->entry_num, | |
57 | port->num); | |
c1e7e466 | 58 | |
2350f247 | 59 | return sprintf(buf, "%llx\n", be64_to_cpu(sysadmin_ag_val)); |
c1e7e466 JM |
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; | |
99ee4df6 | 79 | unsigned long flags; |
c1e7e466 JM |
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 | } | |
99ee4df6 | 87 | spin_lock_irqsave(&mdev->sriov.alias_guid.ag_work_lock, flags); |
c1e7e466 JM |
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 ; | |
2350f247 YH |
97 | mlx4_set_admin_guid(mdev->dev, cpu_to_be64(sysadmin_ag_val), |
98 | mlx4_ib_iov_dentry->entry_num, | |
99 | port->num); | |
100 | ||
c1e7e466 JM |
101 | /* set the record index */ |
102 | mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].guid_indexes | |
99ee4df6 | 103 | |= mlx4_ib_get_aguid_comp_mask_from_ix(guid_index_in_rec); |
c1e7e466 | 104 | |
99ee4df6 | 105 | spin_unlock_irqrestore(&mdev->sriov.alias_guid.ag_work_lock, flags); |
c1e7e466 JM |
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 */ | |
872bf2fb | 358 | strlcpy(name, pci_name(dev->dev->persist->pdev), max); |
c1e7e466 JM |
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; | |
65fed8a8 JM |
372 | struct device_attribute enable_smi_admin; |
373 | struct device_attribute smi_enabled; | |
c1e7e466 | 374 | int slave; |
65fed8a8 | 375 | u8 port_num; |
c1e7e466 JM |
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 | ||
65fed8a8 JM |
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 | ||
c1e7e466 JM |
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; | |
2b135db3 JM |
643 | int is_eth = rdma_port_get_link_layer(&dev->ib_dev, port_num) == |
644 | IB_LINK_LAYER_ETHERNET; | |
c1e7e466 JM |
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 = | |
2b135db3 JM |
662 | alloc_group_attrs(show_port_pkey, |
663 | is_eth ? NULL : store_port_pkey, | |
c1e7e466 | 664 | dev->dev->caps.pkey_table_len[port_num]); |
af2e2e35 JL |
665 | if (!p->pkey_group.attrs) { |
666 | ret = -ENOMEM; | |
c1e7e466 | 667 | goto err_alloc; |
af2e2e35 | 668 | } |
c1e7e466 JM |
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); | |
af2e2e35 JL |
676 | if (!p->gid_group.attrs) { |
677 | ret = -ENOMEM; | |
c1e7e466 | 678 | goto err_free_pkey; |
af2e2e35 | 679 | } |
c1e7e466 JM |
680 | |
681 | ret = sysfs_create_group(&p->kobj, &p->gid_group); | |
682 | if (ret) | |
683 | goto err_free_gid; | |
684 | ||
65fed8a8 JM |
685 | ret = add_vf_smi_entries(p); |
686 | if (ret) | |
687 | goto err_free_gid; | |
688 | ||
c1e7e466 JM |
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; | |
449fc488 | 714 | struct mlx4_active_ports actv_ports; |
c1e7e466 JM |
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 | ||
449fc488 MB |
737 | actv_ports = mlx4_get_active_ports(dev->dev, slave); |
738 | ||
c1e7e466 | 739 | for (port = 1; port <= dev->dev->caps.num_ports; ++port) { |
449fc488 MB |
740 | if (!test_bit(port - 1, actv_ports.ports)) |
741 | continue; | |
c1e7e466 JM |
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); | |
65fed8a8 | 756 | remove_vf_smi_entries(mport); |
c1e7e466 JM |
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 | ||
872bf2fb | 778 | for (i = 0; i <= device->dev->persist->num_vfs; ++i) |
c1e7e466 JM |
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 | ||
872bf2fb | 793 | for (slave = device->dev->persist->num_vfs; slave >= 0; --slave) { |
c1e7e466 JM |
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); | |
65fed8a8 | 801 | remove_vf_smi_entries(port); |
c1e7e466 JM |
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)); | |
6950a235 | 830 | if (!dev->ports_parent) { |
c1e7e466 JM |
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 | } |