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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 | |
1c7fd726 | 59 | return sysfs_emit(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; | |
45808361 JP |
120 | int ret; |
121 | __be16 *raw; | |
c1e7e466 JM |
122 | |
123 | ret = __mlx4_ib_query_gid(&mdev->ib_dev, port->num, | |
124 | mlx4_ib_iov_dentry->entry_num, &gid, 1); | |
125 | if (ret) | |
126 | return ret; | |
45808361 JP |
127 | |
128 | raw = (__be16 *)gid.raw; | |
129 | return sysfs_emit(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", | |
130 | be16_to_cpu(raw[0]), | |
131 | be16_to_cpu(raw[1]), | |
132 | be16_to_cpu(raw[2]), | |
133 | be16_to_cpu(raw[3]), | |
134 | be16_to_cpu(raw[4]), | |
135 | be16_to_cpu(raw[5]), | |
136 | be16_to_cpu(raw[6]), | |
137 | be16_to_cpu(raw[7])); | |
c1e7e466 JM |
138 | } |
139 | ||
140 | static ssize_t show_phys_port_pkey(struct device *dev, | |
141 | struct device_attribute *attr, | |
142 | char *buf) | |
143 | { | |
144 | struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = | |
145 | container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); | |
146 | struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; | |
147 | struct mlx4_ib_dev *mdev = port->dev; | |
148 | u16 pkey; | |
149 | ssize_t ret; | |
150 | ||
151 | ret = __mlx4_ib_query_pkey(&mdev->ib_dev, port->num, | |
152 | mlx4_ib_iov_dentry->entry_num, &pkey, 1); | |
153 | if (ret) | |
154 | return ret; | |
155 | ||
1c7fd726 | 156 | return sysfs_emit(buf, "0x%04x\n", pkey); |
c1e7e466 JM |
157 | } |
158 | ||
159 | #define DENTRY_REMOVE(_dentry) \ | |
160 | do { \ | |
161 | sysfs_remove_file((_dentry)->kobj, &(_dentry)->dentry.attr); \ | |
162 | } while (0); | |
163 | ||
164 | static int create_sysfs_entry(void *_ctx, struct mlx4_ib_iov_sysfs_attr *_dentry, | |
165 | char *_name, struct kobject *_kobj, | |
166 | ssize_t (*show)(struct device *dev, | |
167 | struct device_attribute *attr, | |
168 | char *buf), | |
169 | ssize_t (*store)(struct device *dev, | |
170 | struct device_attribute *attr, | |
171 | const char *buf, size_t count) | |
172 | ) | |
173 | { | |
174 | int ret = 0; | |
175 | struct mlx4_ib_iov_sysfs_attr *vdentry = _dentry; | |
176 | ||
177 | vdentry->ctx = _ctx; | |
178 | vdentry->dentry.show = show; | |
179 | vdentry->dentry.store = store; | |
180 | sysfs_attr_init(&vdentry->dentry.attr); | |
181 | vdentry->dentry.attr.name = vdentry->name; | |
182 | vdentry->dentry.attr.mode = 0; | |
183 | vdentry->kobj = _kobj; | |
184 | snprintf(vdentry->name, 15, "%s", _name); | |
185 | ||
186 | if (vdentry->dentry.store) | |
187 | vdentry->dentry.attr.mode |= S_IWUSR; | |
188 | ||
189 | if (vdentry->dentry.show) | |
190 | vdentry->dentry.attr.mode |= S_IRUGO; | |
191 | ||
192 | ret = sysfs_create_file(vdentry->kobj, &vdentry->dentry.attr); | |
193 | if (ret) { | |
194 | pr_err("failed to create %s\n", vdentry->dentry.attr.name); | |
195 | vdentry->ctx = NULL; | |
196 | return ret; | |
197 | } | |
198 | ||
199 | return ret; | |
200 | } | |
201 | ||
202 | int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, | |
203 | struct attribute *attr) | |
204 | { | |
205 | struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1]; | |
206 | int ret; | |
207 | ||
208 | ret = sysfs_create_file(port->mcgs_parent, attr); | |
209 | if (ret) | |
210 | pr_err("failed to create %s\n", attr->name); | |
211 | ||
212 | return ret; | |
213 | } | |
214 | ||
215 | void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, | |
216 | struct attribute *attr) | |
217 | { | |
218 | struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1]; | |
219 | ||
220 | sysfs_remove_file(port->mcgs_parent, attr); | |
221 | } | |
222 | ||
223 | static int add_port_entries(struct mlx4_ib_dev *device, int port_num) | |
224 | { | |
225 | int i; | |
d7f39343 | 226 | char buff[12]; |
c1e7e466 JM |
227 | struct mlx4_ib_iov_port *port = NULL; |
228 | int ret = 0 ; | |
229 | struct ib_port_attr attr; | |
230 | ||
c4550c63 | 231 | memset(&attr, 0, sizeof(attr)); |
c1e7e466 JM |
232 | /* get the physical gid and pkey table sizes.*/ |
233 | ret = __mlx4_ib_query_port(&device->ib_dev, port_num, &attr, 1); | |
234 | if (ret) | |
235 | goto err; | |
236 | ||
237 | port = &device->iov_ports[port_num - 1]; | |
238 | port->dev = device; | |
239 | port->num = port_num; | |
240 | /* Directory structure: | |
241 | * iov - | |
242 | * port num - | |
243 | * admin_guids | |
244 | * gids (operational) | |
245 | * mcg_table | |
246 | */ | |
247 | port->dentr_ar = kzalloc(sizeof (struct mlx4_ib_iov_sysfs_attr_ar), | |
248 | GFP_KERNEL); | |
249 | if (!port->dentr_ar) { | |
250 | ret = -ENOMEM; | |
251 | goto err; | |
252 | } | |
253 | sprintf(buff, "%d", port_num); | |
254 | port->cur_port = kobject_create_and_add(buff, | |
255 | kobject_get(device->ports_parent)); | |
256 | if (!port->cur_port) { | |
257 | ret = -ENOMEM; | |
258 | goto kobj_create_err; | |
259 | } | |
260 | /* admin GUIDs */ | |
261 | port->admin_alias_parent = kobject_create_and_add("admin_guids", | |
262 | kobject_get(port->cur_port)); | |
263 | if (!port->admin_alias_parent) { | |
264 | ret = -ENOMEM; | |
265 | goto err_admin_guids; | |
266 | } | |
267 | for (i = 0 ; i < attr.gid_tbl_len; i++) { | |
268 | sprintf(buff, "%d", i); | |
269 | port->dentr_ar->dentries[i].entry_num = i; | |
270 | ret = create_sysfs_entry(port, &port->dentr_ar->dentries[i], | |
271 | buff, port->admin_alias_parent, | |
272 | show_admin_alias_guid, store_admin_alias_guid); | |
273 | if (ret) | |
274 | goto err_admin_alias_parent; | |
275 | } | |
276 | ||
277 | /* gids subdirectory (operational gids) */ | |
278 | port->gids_parent = kobject_create_and_add("gids", | |
279 | kobject_get(port->cur_port)); | |
280 | if (!port->gids_parent) { | |
281 | ret = -ENOMEM; | |
282 | goto err_gids; | |
283 | } | |
284 | ||
285 | for (i = 0 ; i < attr.gid_tbl_len; i++) { | |
286 | sprintf(buff, "%d", i); | |
287 | port->dentr_ar->dentries[attr.gid_tbl_len + i].entry_num = i; | |
288 | ret = create_sysfs_entry(port, | |
289 | &port->dentr_ar->dentries[attr.gid_tbl_len + i], | |
290 | buff, | |
291 | port->gids_parent, show_port_gid, NULL); | |
292 | if (ret) | |
293 | goto err_gids_parent; | |
294 | } | |
295 | ||
296 | /* physical port pkey table */ | |
297 | port->pkeys_parent = | |
298 | kobject_create_and_add("pkeys", kobject_get(port->cur_port)); | |
299 | if (!port->pkeys_parent) { | |
300 | ret = -ENOMEM; | |
301 | goto err_pkeys; | |
302 | } | |
303 | ||
304 | for (i = 0 ; i < attr.pkey_tbl_len; i++) { | |
305 | sprintf(buff, "%d", i); | |
306 | port->dentr_ar->dentries[2 * attr.gid_tbl_len + i].entry_num = i; | |
307 | ret = create_sysfs_entry(port, | |
308 | &port->dentr_ar->dentries[2 * attr.gid_tbl_len + i], | |
309 | buff, port->pkeys_parent, | |
310 | show_phys_port_pkey, NULL); | |
311 | if (ret) | |
312 | goto err_pkeys_parent; | |
313 | } | |
314 | ||
315 | /* MCGs table */ | |
316 | port->mcgs_parent = | |
317 | kobject_create_and_add("mcgs", kobject_get(port->cur_port)); | |
318 | if (!port->mcgs_parent) { | |
319 | ret = -ENOMEM; | |
320 | goto err_mcgs; | |
321 | } | |
322 | return 0; | |
323 | ||
324 | err_mcgs: | |
325 | kobject_put(port->cur_port); | |
326 | ||
327 | err_pkeys_parent: | |
328 | kobject_put(port->pkeys_parent); | |
329 | ||
330 | err_pkeys: | |
331 | kobject_put(port->cur_port); | |
332 | ||
333 | err_gids_parent: | |
334 | kobject_put(port->gids_parent); | |
335 | ||
336 | err_gids: | |
337 | kobject_put(port->cur_port); | |
338 | ||
339 | err_admin_alias_parent: | |
340 | kobject_put(port->admin_alias_parent); | |
341 | ||
342 | err_admin_guids: | |
343 | kobject_put(port->cur_port); | |
344 | kobject_put(port->cur_port); /* once more for create_and_add buff */ | |
345 | ||
346 | kobj_create_err: | |
347 | kobject_put(device->ports_parent); | |
348 | kfree(port->dentr_ar); | |
349 | ||
350 | err: | |
351 | pr_err("add_port_entries FAILED: for port:%d, error: %d\n", | |
352 | port_num, ret); | |
353 | return ret; | |
354 | } | |
355 | ||
356 | static void get_name(struct mlx4_ib_dev *dev, char *name, int i, int max) | |
357 | { | |
0fbc9b8b QC |
358 | /* pci_name format is: bus:dev:func -> xxxx:yy:zz.n |
359 | * with no ARI only 3 last bits are used so when the fn is higher than 8 | |
c1e7e466 JM |
360 | * need to add it to the dev num, so count in the last number will be |
361 | * modulo 8 */ | |
0fbc9b8b QC |
362 | snprintf(name, max, "%.8s%.2d.%d", pci_name(dev->dev->persist->pdev), |
363 | i / 8, i % 8); | |
c1e7e466 JM |
364 | } |
365 | ||
366 | struct mlx4_port { | |
367 | struct kobject kobj; | |
368 | struct mlx4_ib_dev *dev; | |
369 | struct attribute_group pkey_group; | |
370 | struct attribute_group gid_group; | |
65fed8a8 JM |
371 | struct device_attribute enable_smi_admin; |
372 | struct device_attribute smi_enabled; | |
c1e7e466 | 373 | int slave; |
65fed8a8 | 374 | u8 port_num; |
c1e7e466 JM |
375 | }; |
376 | ||
377 | ||
378 | static void mlx4_port_release(struct kobject *kobj) | |
379 | { | |
380 | struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); | |
381 | struct attribute *a; | |
382 | int i; | |
383 | ||
384 | for (i = 0; (a = p->pkey_group.attrs[i]); ++i) | |
385 | kfree(a); | |
386 | kfree(p->pkey_group.attrs); | |
387 | for (i = 0; (a = p->gid_group.attrs[i]); ++i) | |
388 | kfree(a); | |
389 | kfree(p->gid_group.attrs); | |
390 | kfree(p); | |
391 | } | |
392 | ||
393 | struct port_attribute { | |
394 | struct attribute attr; | |
395 | ssize_t (*show)(struct mlx4_port *, struct port_attribute *, char *buf); | |
396 | ssize_t (*store)(struct mlx4_port *, struct port_attribute *, | |
397 | const char *buf, size_t count); | |
398 | }; | |
399 | ||
400 | static ssize_t port_attr_show(struct kobject *kobj, | |
401 | struct attribute *attr, char *buf) | |
402 | { | |
403 | struct port_attribute *port_attr = | |
404 | container_of(attr, struct port_attribute, attr); | |
405 | struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); | |
406 | ||
407 | if (!port_attr->show) | |
408 | return -EIO; | |
409 | return port_attr->show(p, port_attr, buf); | |
410 | } | |
411 | ||
412 | static ssize_t port_attr_store(struct kobject *kobj, | |
413 | struct attribute *attr, | |
414 | const char *buf, size_t size) | |
415 | { | |
416 | struct port_attribute *port_attr = | |
417 | container_of(attr, struct port_attribute, attr); | |
418 | struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); | |
419 | ||
420 | if (!port_attr->store) | |
421 | return -EIO; | |
422 | return port_attr->store(p, port_attr, buf, size); | |
423 | } | |
424 | ||
425 | static const struct sysfs_ops port_sysfs_ops = { | |
426 | .show = port_attr_show, | |
427 | .store = port_attr_store, | |
428 | }; | |
429 | ||
430 | static struct kobj_type port_type = { | |
431 | .release = mlx4_port_release, | |
432 | .sysfs_ops = &port_sysfs_ops, | |
433 | }; | |
434 | ||
435 | struct port_table_attribute { | |
436 | struct port_attribute attr; | |
437 | char name[8]; | |
438 | int index; | |
439 | }; | |
440 | ||
441 | static ssize_t show_port_pkey(struct mlx4_port *p, struct port_attribute *attr, | |
442 | char *buf) | |
443 | { | |
444 | struct port_table_attribute *tab_attr = | |
445 | container_of(attr, struct port_table_attribute, attr); | |
e28bf1f0 JP |
446 | struct pkey_mgt *m = &p->dev->pkeys; |
447 | u8 key = m->virt2phys_pkey[p->slave][p->port_num - 1][tab_attr->index]; | |
448 | ||
449 | if (key >= p->dev->dev->caps.pkey_table_len[p->port_num]) | |
450 | return sysfs_emit(buf, "none\n"); | |
451 | return sysfs_emit(buf, "%d\n", key); | |
c1e7e466 JM |
452 | } |
453 | ||
454 | static ssize_t store_port_pkey(struct mlx4_port *p, struct port_attribute *attr, | |
455 | const char *buf, size_t count) | |
456 | { | |
457 | struct port_table_attribute *tab_attr = | |
458 | container_of(attr, struct port_table_attribute, attr); | |
459 | int idx; | |
460 | int err; | |
461 | ||
462 | /* do not allow remapping Dom0 virtual pkey table */ | |
463 | if (p->slave == mlx4_master_func_num(p->dev->dev)) | |
464 | return -EINVAL; | |
465 | ||
466 | if (!strncasecmp(buf, "no", 2)) | |
467 | idx = p->dev->dev->phys_caps.pkey_phys_table_len[p->port_num] - 1; | |
468 | else if (sscanf(buf, "%i", &idx) != 1 || | |
469 | idx >= p->dev->dev->caps.pkey_table_len[p->port_num] || | |
470 | idx < 0) | |
471 | return -EINVAL; | |
472 | ||
473 | p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1] | |
474 | [tab_attr->index] = idx; | |
475 | mlx4_sync_pkey_table(p->dev->dev, p->slave, p->port_num, | |
476 | tab_attr->index, idx); | |
477 | err = mlx4_gen_pkey_eqe(p->dev->dev, p->slave, p->port_num); | |
478 | if (err) { | |
479 | pr_err("mlx4_gen_pkey_eqe failed for slave %d," | |
480 | " port %d, index %d\n", p->slave, p->port_num, idx); | |
481 | return err; | |
482 | } | |
483 | return count; | |
484 | } | |
485 | ||
486 | static ssize_t show_port_gid_idx(struct mlx4_port *p, | |
487 | struct port_attribute *attr, char *buf) | |
488 | { | |
e28bf1f0 | 489 | return sysfs_emit(buf, "%d\n", p->slave); |
c1e7e466 JM |
490 | } |
491 | ||
492 | static struct attribute ** | |
493 | alloc_group_attrs(ssize_t (*show)(struct mlx4_port *, | |
494 | struct port_attribute *, char *buf), | |
495 | ssize_t (*store)(struct mlx4_port *, struct port_attribute *, | |
496 | const char *buf, size_t count), | |
497 | int len) | |
498 | { | |
499 | struct attribute **tab_attr; | |
500 | struct port_table_attribute *element; | |
501 | int i; | |
502 | ||
503 | tab_attr = kcalloc(1 + len, sizeof (struct attribute *), GFP_KERNEL); | |
504 | if (!tab_attr) | |
505 | return NULL; | |
506 | ||
507 | for (i = 0; i < len; i++) { | |
508 | element = kzalloc(sizeof (struct port_table_attribute), | |
509 | GFP_KERNEL); | |
510 | if (!element) | |
511 | goto err; | |
512 | if (snprintf(element->name, sizeof (element->name), | |
513 | "%d", i) >= sizeof (element->name)) { | |
514 | kfree(element); | |
515 | goto err; | |
516 | } | |
517 | sysfs_attr_init(&element->attr.attr); | |
518 | element->attr.attr.name = element->name; | |
519 | if (store) { | |
520 | element->attr.attr.mode = S_IWUSR | S_IRUGO; | |
521 | element->attr.store = store; | |
522 | } else | |
523 | element->attr.attr.mode = S_IRUGO; | |
524 | ||
525 | element->attr.show = show; | |
526 | element->index = i; | |
527 | tab_attr[i] = &element->attr.attr; | |
528 | } | |
529 | return tab_attr; | |
530 | ||
531 | err: | |
532 | while (--i >= 0) | |
533 | kfree(tab_attr[i]); | |
534 | kfree(tab_attr); | |
535 | return NULL; | |
536 | } | |
537 | ||
65fed8a8 JM |
538 | static ssize_t sysfs_show_smi_enabled(struct device *dev, |
539 | struct device_attribute *attr, char *buf) | |
540 | { | |
541 | struct mlx4_port *p = | |
542 | container_of(attr, struct mlx4_port, smi_enabled); | |
65fed8a8 | 543 | |
45808361 JP |
544 | return sysfs_emit(buf, "%d\n", |
545 | !!mlx4_vf_smi_enabled(p->dev->dev, p->slave, | |
546 | p->port_num)); | |
65fed8a8 JM |
547 | } |
548 | ||
549 | static ssize_t sysfs_show_enable_smi_admin(struct device *dev, | |
550 | struct device_attribute *attr, | |
551 | char *buf) | |
552 | { | |
553 | struct mlx4_port *p = | |
554 | container_of(attr, struct mlx4_port, enable_smi_admin); | |
65fed8a8 | 555 | |
45808361 JP |
556 | return sysfs_emit(buf, "%d\n", |
557 | !!mlx4_vf_get_enable_smi_admin(p->dev->dev, p->slave, | |
558 | p->port_num)); | |
65fed8a8 JM |
559 | } |
560 | ||
561 | static ssize_t sysfs_store_enable_smi_admin(struct device *dev, | |
562 | struct device_attribute *attr, | |
563 | const char *buf, size_t count) | |
564 | { | |
565 | struct mlx4_port *p = | |
566 | container_of(attr, struct mlx4_port, enable_smi_admin); | |
567 | int enable; | |
568 | ||
569 | if (sscanf(buf, "%i", &enable) != 1 || | |
570 | enable < 0 || enable > 1) | |
571 | return -EINVAL; | |
572 | ||
573 | if (mlx4_vf_set_enable_smi_admin(p->dev->dev, p->slave, p->port_num, enable)) | |
574 | return -EINVAL; | |
575 | return count; | |
576 | } | |
577 | ||
578 | static int add_vf_smi_entries(struct mlx4_port *p) | |
579 | { | |
580 | int is_eth = rdma_port_get_link_layer(&p->dev->ib_dev, p->port_num) == | |
581 | IB_LINK_LAYER_ETHERNET; | |
582 | int ret; | |
583 | ||
584 | /* do not display entries if eth transport, or if master */ | |
585 | if (is_eth || p->slave == mlx4_master_func_num(p->dev->dev)) | |
586 | return 0; | |
587 | ||
588 | sysfs_attr_init(&p->smi_enabled.attr); | |
589 | p->smi_enabled.show = sysfs_show_smi_enabled; | |
590 | p->smi_enabled.store = NULL; | |
591 | p->smi_enabled.attr.name = "smi_enabled"; | |
592 | p->smi_enabled.attr.mode = 0444; | |
593 | ret = sysfs_create_file(&p->kobj, &p->smi_enabled.attr); | |
594 | if (ret) { | |
595 | pr_err("failed to create smi_enabled\n"); | |
596 | return ret; | |
597 | } | |
598 | ||
599 | sysfs_attr_init(&p->enable_smi_admin.attr); | |
600 | p->enable_smi_admin.show = sysfs_show_enable_smi_admin; | |
601 | p->enable_smi_admin.store = sysfs_store_enable_smi_admin; | |
602 | p->enable_smi_admin.attr.name = "enable_smi_admin"; | |
603 | p->enable_smi_admin.attr.mode = 0644; | |
604 | ret = sysfs_create_file(&p->kobj, &p->enable_smi_admin.attr); | |
605 | if (ret) { | |
606 | pr_err("failed to create enable_smi_admin\n"); | |
607 | sysfs_remove_file(&p->kobj, &p->smi_enabled.attr); | |
608 | return ret; | |
609 | } | |
610 | return 0; | |
611 | } | |
612 | ||
613 | static void remove_vf_smi_entries(struct mlx4_port *p) | |
614 | { | |
615 | int is_eth = rdma_port_get_link_layer(&p->dev->ib_dev, p->port_num) == | |
616 | IB_LINK_LAYER_ETHERNET; | |
617 | ||
618 | if (is_eth || p->slave == mlx4_master_func_num(p->dev->dev)) | |
619 | return; | |
620 | ||
621 | sysfs_remove_file(&p->kobj, &p->smi_enabled.attr); | |
622 | sysfs_remove_file(&p->kobj, &p->enable_smi_admin.attr); | |
623 | } | |
624 | ||
c1e7e466 JM |
625 | static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave) |
626 | { | |
627 | struct mlx4_port *p; | |
628 | int i; | |
629 | int ret; | |
2b135db3 JM |
630 | int is_eth = rdma_port_get_link_layer(&dev->ib_dev, port_num) == |
631 | IB_LINK_LAYER_ETHERNET; | |
c1e7e466 JM |
632 | |
633 | p = kzalloc(sizeof *p, GFP_KERNEL); | |
634 | if (!p) | |
635 | return -ENOMEM; | |
636 | ||
637 | p->dev = dev; | |
638 | p->port_num = port_num; | |
639 | p->slave = slave; | |
640 | ||
641 | ret = kobject_init_and_add(&p->kobj, &port_type, | |
642 | kobject_get(dev->dev_ports_parent[slave]), | |
643 | "%d", port_num); | |
644 | if (ret) | |
645 | goto err_alloc; | |
646 | ||
647 | p->pkey_group.name = "pkey_idx"; | |
648 | p->pkey_group.attrs = | |
2b135db3 JM |
649 | alloc_group_attrs(show_port_pkey, |
650 | is_eth ? NULL : store_port_pkey, | |
c1e7e466 | 651 | dev->dev->caps.pkey_table_len[port_num]); |
af2e2e35 JL |
652 | if (!p->pkey_group.attrs) { |
653 | ret = -ENOMEM; | |
c1e7e466 | 654 | goto err_alloc; |
af2e2e35 | 655 | } |
c1e7e466 JM |
656 | |
657 | ret = sysfs_create_group(&p->kobj, &p->pkey_group); | |
658 | if (ret) | |
659 | goto err_free_pkey; | |
660 | ||
661 | p->gid_group.name = "gid_idx"; | |
662 | p->gid_group.attrs = alloc_group_attrs(show_port_gid_idx, NULL, 1); | |
af2e2e35 JL |
663 | if (!p->gid_group.attrs) { |
664 | ret = -ENOMEM; | |
c1e7e466 | 665 | goto err_free_pkey; |
af2e2e35 | 666 | } |
c1e7e466 JM |
667 | |
668 | ret = sysfs_create_group(&p->kobj, &p->gid_group); | |
669 | if (ret) | |
670 | goto err_free_gid; | |
671 | ||
65fed8a8 JM |
672 | ret = add_vf_smi_entries(p); |
673 | if (ret) | |
674 | goto err_free_gid; | |
675 | ||
c1e7e466 JM |
676 | list_add_tail(&p->kobj.entry, &dev->pkeys.pkey_port_list[slave]); |
677 | return 0; | |
678 | ||
679 | err_free_gid: | |
680 | kfree(p->gid_group.attrs[0]); | |
681 | kfree(p->gid_group.attrs); | |
682 | ||
683 | err_free_pkey: | |
684 | for (i = 0; i < dev->dev->caps.pkey_table_len[port_num]; ++i) | |
685 | kfree(p->pkey_group.attrs[i]); | |
686 | kfree(p->pkey_group.attrs); | |
687 | ||
688 | err_alloc: | |
689 | kobject_put(dev->dev_ports_parent[slave]); | |
690 | kfree(p); | |
691 | return ret; | |
692 | } | |
693 | ||
694 | static int register_one_pkey_tree(struct mlx4_ib_dev *dev, int slave) | |
695 | { | |
696 | char name[32]; | |
697 | int err; | |
698 | int port; | |
699 | struct kobject *p, *t; | |
700 | struct mlx4_port *mport; | |
449fc488 | 701 | struct mlx4_active_ports actv_ports; |
c1e7e466 JM |
702 | |
703 | get_name(dev, name, slave, sizeof name); | |
704 | ||
705 | dev->pkeys.device_parent[slave] = | |
706 | kobject_create_and_add(name, kobject_get(dev->iov_parent)); | |
707 | ||
708 | if (!dev->pkeys.device_parent[slave]) { | |
709 | err = -ENOMEM; | |
710 | goto fail_dev; | |
711 | } | |
712 | ||
713 | INIT_LIST_HEAD(&dev->pkeys.pkey_port_list[slave]); | |
714 | ||
715 | dev->dev_ports_parent[slave] = | |
716 | kobject_create_and_add("ports", | |
717 | kobject_get(dev->pkeys.device_parent[slave])); | |
718 | ||
719 | if (!dev->dev_ports_parent[slave]) { | |
720 | err = -ENOMEM; | |
721 | goto err_ports; | |
722 | } | |
723 | ||
449fc488 MB |
724 | actv_ports = mlx4_get_active_ports(dev->dev, slave); |
725 | ||
c1e7e466 | 726 | for (port = 1; port <= dev->dev->caps.num_ports; ++port) { |
449fc488 MB |
727 | if (!test_bit(port - 1, actv_ports.ports)) |
728 | continue; | |
c1e7e466 JM |
729 | err = add_port(dev, port, slave); |
730 | if (err) | |
731 | goto err_add; | |
732 | } | |
733 | return 0; | |
734 | ||
735 | err_add: | |
736 | list_for_each_entry_safe(p, t, | |
737 | &dev->pkeys.pkey_port_list[slave], | |
738 | entry) { | |
739 | list_del(&p->entry); | |
740 | mport = container_of(p, struct mlx4_port, kobj); | |
741 | sysfs_remove_group(p, &mport->pkey_group); | |
742 | sysfs_remove_group(p, &mport->gid_group); | |
65fed8a8 | 743 | remove_vf_smi_entries(mport); |
c1e7e466 JM |
744 | kobject_put(p); |
745 | } | |
746 | kobject_put(dev->dev_ports_parent[slave]); | |
747 | ||
748 | err_ports: | |
749 | kobject_put(dev->pkeys.device_parent[slave]); | |
750 | /* extra put for the device_parent create_and_add */ | |
751 | kobject_put(dev->pkeys.device_parent[slave]); | |
752 | ||
753 | fail_dev: | |
754 | kobject_put(dev->iov_parent); | |
755 | return err; | |
756 | } | |
757 | ||
758 | static int register_pkey_tree(struct mlx4_ib_dev *device) | |
759 | { | |
760 | int i; | |
761 | ||
762 | if (!mlx4_is_master(device->dev)) | |
763 | return 0; | |
764 | ||
872bf2fb | 765 | for (i = 0; i <= device->dev->persist->num_vfs; ++i) |
c1e7e466 JM |
766 | register_one_pkey_tree(device, i); |
767 | ||
768 | return 0; | |
769 | } | |
770 | ||
771 | static void unregister_pkey_tree(struct mlx4_ib_dev *device) | |
772 | { | |
773 | int slave; | |
774 | struct kobject *p, *t; | |
775 | struct mlx4_port *port; | |
776 | ||
777 | if (!mlx4_is_master(device->dev)) | |
778 | return; | |
779 | ||
872bf2fb | 780 | for (slave = device->dev->persist->num_vfs; slave >= 0; --slave) { |
c1e7e466 JM |
781 | list_for_each_entry_safe(p, t, |
782 | &device->pkeys.pkey_port_list[slave], | |
783 | entry) { | |
784 | list_del(&p->entry); | |
785 | port = container_of(p, struct mlx4_port, kobj); | |
786 | sysfs_remove_group(p, &port->pkey_group); | |
787 | sysfs_remove_group(p, &port->gid_group); | |
65fed8a8 | 788 | remove_vf_smi_entries(port); |
c1e7e466 JM |
789 | kobject_put(p); |
790 | kobject_put(device->dev_ports_parent[slave]); | |
791 | } | |
792 | kobject_put(device->dev_ports_parent[slave]); | |
793 | kobject_put(device->pkeys.device_parent[slave]); | |
794 | kobject_put(device->pkeys.device_parent[slave]); | |
795 | kobject_put(device->iov_parent); | |
796 | } | |
797 | } | |
798 | ||
799 | int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *dev) | |
800 | { | |
6504c772 | 801 | unsigned int i; |
c1e7e466 JM |
802 | int ret = 0; |
803 | ||
804 | if (!mlx4_is_master(dev->dev)) | |
805 | return 0; | |
806 | ||
60f1fc20 | 807 | dev->iov_parent = kobject_create_and_add("iov", &dev->ib_dev.dev.kobj); |
c1e7e466 JM |
808 | if (!dev->iov_parent) { |
809 | ret = -ENOMEM; | |
810 | goto err; | |
811 | } | |
812 | dev->ports_parent = | |
813 | kobject_create_and_add("ports", | |
814 | kobject_get(dev->iov_parent)); | |
6950a235 | 815 | if (!dev->ports_parent) { |
c1e7e466 JM |
816 | ret = -ENOMEM; |
817 | goto err_ports; | |
818 | } | |
819 | ||
6504c772 | 820 | rdma_for_each_port(&dev->ib_dev, i) { |
c1e7e466 JM |
821 | ret = add_port_entries(dev, i); |
822 | if (ret) | |
823 | goto err_add_entries; | |
824 | } | |
825 | ||
826 | ret = register_pkey_tree(dev); | |
827 | if (ret) | |
828 | goto err_add_entries; | |
829 | return 0; | |
830 | ||
831 | err_add_entries: | |
832 | kobject_put(dev->ports_parent); | |
833 | ||
834 | err_ports: | |
835 | kobject_put(dev->iov_parent); | |
836 | err: | |
c1e7e466 JM |
837 | pr_err("mlx4_ib_device_register_sysfs error (%d)\n", ret); |
838 | return ret; | |
839 | } | |
840 | ||
841 | static void unregister_alias_guid_tree(struct mlx4_ib_dev *device) | |
842 | { | |
843 | struct mlx4_ib_iov_port *p; | |
844 | int i; | |
845 | ||
846 | if (!mlx4_is_master(device->dev)) | |
847 | return; | |
848 | ||
849 | for (i = 0; i < device->dev->caps.num_ports; i++) { | |
850 | p = &device->iov_ports[i]; | |
851 | kobject_put(p->admin_alias_parent); | |
852 | kobject_put(p->gids_parent); | |
853 | kobject_put(p->pkeys_parent); | |
854 | kobject_put(p->mcgs_parent); | |
855 | kobject_put(p->cur_port); | |
856 | kobject_put(p->cur_port); | |
857 | kobject_put(p->cur_port); | |
858 | kobject_put(p->cur_port); | |
859 | kobject_put(p->cur_port); | |
860 | kobject_put(p->dev->ports_parent); | |
861 | kfree(p->dentr_ar); | |
862 | } | |
863 | } | |
864 | ||
865 | void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device) | |
866 | { | |
867 | unregister_alias_guid_tree(device); | |
868 | unregister_pkey_tree(device); | |
869 | kobject_put(device->ports_parent); | |
870 | kobject_put(device->iov_parent); | |
871 | kobject_put(device->iov_parent); | |
c1e7e466 | 872 | } |