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c82e9aa0 EC |
1 | /* |
2 | * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. | |
3 | * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. | |
4 | * All rights reserved. | |
5 | * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved. | |
6 | * | |
7 | * This software is available to you under a choice of one of two | |
8 | * licenses. You may choose to be licensed under the terms of the GNU | |
9 | * General Public License (GPL) Version 2, available from the file | |
10 | * COPYING in the main directory of this source tree, or the | |
11 | * OpenIB.org BSD license below: | |
12 | * | |
13 | * Redistribution and use in source and binary forms, with or | |
14 | * without modification, are permitted provided that the following | |
15 | * conditions are met: | |
16 | * | |
17 | * - Redistributions of source code must retain the above | |
18 | * copyright notice, this list of conditions and the following | |
19 | * disclaimer. | |
20 | * | |
21 | * - Redistributions in binary form must reproduce the above | |
22 | * copyright notice, this list of conditions and the following | |
23 | * disclaimer in the documentation and/or other materials | |
24 | * provided with the distribution. | |
25 | * | |
26 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
27 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
28 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
29 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
30 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
31 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
32 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
33 | * SOFTWARE. | |
34 | */ | |
35 | ||
36 | #include <linux/sched.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/errno.h> | |
39 | #include <linux/kernel.h> | |
40 | #include <linux/io.h> | |
e143a1ad | 41 | #include <linux/slab.h> |
c82e9aa0 EC |
42 | #include <linux/mlx4/cmd.h> |
43 | #include <linux/mlx4/qp.h> | |
44 | ||
45 | #include "mlx4.h" | |
46 | #include "fw.h" | |
47 | ||
48 | #define MLX4_MAC_VALID (1ull << 63) | |
49 | #define MLX4_MAC_MASK 0x7fffffffffffffffULL | |
50 | #define ETH_ALEN 6 | |
51 | ||
52 | struct mac_res { | |
53 | struct list_head list; | |
54 | u64 mac; | |
55 | u8 port; | |
56 | }; | |
57 | ||
58 | struct res_common { | |
59 | struct list_head list; | |
60 | u32 res_id; | |
61 | int owner; | |
62 | int state; | |
63 | int from_state; | |
64 | int to_state; | |
65 | int removing; | |
66 | }; | |
67 | ||
68 | enum { | |
69 | RES_ANY_BUSY = 1 | |
70 | }; | |
71 | ||
72 | struct res_gid { | |
73 | struct list_head list; | |
74 | u8 gid[16]; | |
75 | enum mlx4_protocol prot; | |
9f5b6c63 | 76 | enum mlx4_steer_type steer; |
c82e9aa0 EC |
77 | }; |
78 | ||
79 | enum res_qp_states { | |
80 | RES_QP_BUSY = RES_ANY_BUSY, | |
81 | ||
82 | /* QP number was allocated */ | |
83 | RES_QP_RESERVED, | |
84 | ||
85 | /* ICM memory for QP context was mapped */ | |
86 | RES_QP_MAPPED, | |
87 | ||
88 | /* QP is in hw ownership */ | |
89 | RES_QP_HW | |
90 | }; | |
91 | ||
92 | static inline const char *qp_states_str(enum res_qp_states state) | |
93 | { | |
94 | switch (state) { | |
95 | case RES_QP_BUSY: return "RES_QP_BUSY"; | |
96 | case RES_QP_RESERVED: return "RES_QP_RESERVED"; | |
97 | case RES_QP_MAPPED: return "RES_QP_MAPPED"; | |
98 | case RES_QP_HW: return "RES_QP_HW"; | |
99 | default: return "Unknown"; | |
100 | } | |
101 | } | |
102 | ||
103 | struct res_qp { | |
104 | struct res_common com; | |
105 | struct res_mtt *mtt; | |
106 | struct res_cq *rcq; | |
107 | struct res_cq *scq; | |
108 | struct res_srq *srq; | |
109 | struct list_head mcg_list; | |
110 | spinlock_t mcg_spl; | |
111 | int local_qpn; | |
112 | }; | |
113 | ||
114 | enum res_mtt_states { | |
115 | RES_MTT_BUSY = RES_ANY_BUSY, | |
116 | RES_MTT_ALLOCATED, | |
117 | }; | |
118 | ||
119 | static inline const char *mtt_states_str(enum res_mtt_states state) | |
120 | { | |
121 | switch (state) { | |
122 | case RES_MTT_BUSY: return "RES_MTT_BUSY"; | |
123 | case RES_MTT_ALLOCATED: return "RES_MTT_ALLOCATED"; | |
124 | default: return "Unknown"; | |
125 | } | |
126 | } | |
127 | ||
128 | struct res_mtt { | |
129 | struct res_common com; | |
130 | int order; | |
131 | atomic_t ref_count; | |
132 | }; | |
133 | ||
134 | enum res_mpt_states { | |
135 | RES_MPT_BUSY = RES_ANY_BUSY, | |
136 | RES_MPT_RESERVED, | |
137 | RES_MPT_MAPPED, | |
138 | RES_MPT_HW, | |
139 | }; | |
140 | ||
141 | struct res_mpt { | |
142 | struct res_common com; | |
143 | struct res_mtt *mtt; | |
144 | int key; | |
145 | }; | |
146 | ||
147 | enum res_eq_states { | |
148 | RES_EQ_BUSY = RES_ANY_BUSY, | |
149 | RES_EQ_RESERVED, | |
150 | RES_EQ_HW, | |
151 | }; | |
152 | ||
153 | struct res_eq { | |
154 | struct res_common com; | |
155 | struct res_mtt *mtt; | |
156 | }; | |
157 | ||
158 | enum res_cq_states { | |
159 | RES_CQ_BUSY = RES_ANY_BUSY, | |
160 | RES_CQ_ALLOCATED, | |
161 | RES_CQ_HW, | |
162 | }; | |
163 | ||
164 | struct res_cq { | |
165 | struct res_common com; | |
166 | struct res_mtt *mtt; | |
167 | atomic_t ref_count; | |
168 | }; | |
169 | ||
170 | enum res_srq_states { | |
171 | RES_SRQ_BUSY = RES_ANY_BUSY, | |
172 | RES_SRQ_ALLOCATED, | |
173 | RES_SRQ_HW, | |
174 | }; | |
175 | ||
176 | static inline const char *srq_states_str(enum res_srq_states state) | |
177 | { | |
178 | switch (state) { | |
179 | case RES_SRQ_BUSY: return "RES_SRQ_BUSY"; | |
180 | case RES_SRQ_ALLOCATED: return "RES_SRQ_ALLOCATED"; | |
181 | case RES_SRQ_HW: return "RES_SRQ_HW"; | |
182 | default: return "Unknown"; | |
183 | } | |
184 | } | |
185 | ||
186 | struct res_srq { | |
187 | struct res_common com; | |
188 | struct res_mtt *mtt; | |
189 | struct res_cq *cq; | |
190 | atomic_t ref_count; | |
191 | }; | |
192 | ||
193 | enum res_counter_states { | |
194 | RES_COUNTER_BUSY = RES_ANY_BUSY, | |
195 | RES_COUNTER_ALLOCATED, | |
196 | }; | |
197 | ||
198 | static inline const char *counter_states_str(enum res_counter_states state) | |
199 | { | |
200 | switch (state) { | |
201 | case RES_COUNTER_BUSY: return "RES_COUNTER_BUSY"; | |
202 | case RES_COUNTER_ALLOCATED: return "RES_COUNTER_ALLOCATED"; | |
203 | default: return "Unknown"; | |
204 | } | |
205 | } | |
206 | ||
207 | struct res_counter { | |
208 | struct res_common com; | |
209 | int port; | |
210 | }; | |
211 | ||
212 | /* For Debug uses */ | |
213 | static const char *ResourceType(enum mlx4_resource rt) | |
214 | { | |
215 | switch (rt) { | |
216 | case RES_QP: return "RES_QP"; | |
217 | case RES_CQ: return "RES_CQ"; | |
218 | case RES_SRQ: return "RES_SRQ"; | |
219 | case RES_MPT: return "RES_MPT"; | |
220 | case RES_MTT: return "RES_MTT"; | |
221 | case RES_MAC: return "RES_MAC"; | |
222 | case RES_EQ: return "RES_EQ"; | |
223 | case RES_COUNTER: return "RES_COUNTER"; | |
224 | default: return "Unknown resource type !!!"; | |
225 | }; | |
226 | } | |
227 | ||
c82e9aa0 EC |
228 | int mlx4_init_resource_tracker(struct mlx4_dev *dev) |
229 | { | |
230 | struct mlx4_priv *priv = mlx4_priv(dev); | |
231 | int i; | |
232 | int t; | |
233 | ||
234 | priv->mfunc.master.res_tracker.slave_list = | |
235 | kzalloc(dev->num_slaves * sizeof(struct slave_list), | |
236 | GFP_KERNEL); | |
237 | if (!priv->mfunc.master.res_tracker.slave_list) | |
238 | return -ENOMEM; | |
239 | ||
240 | for (i = 0 ; i < dev->num_slaves; i++) { | |
241 | for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t) | |
242 | INIT_LIST_HEAD(&priv->mfunc.master.res_tracker. | |
243 | slave_list[i].res_list[t]); | |
244 | mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex); | |
245 | } | |
246 | ||
247 | mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n", | |
248 | dev->num_slaves); | |
249 | for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) | |
250 | INIT_RADIX_TREE(&priv->mfunc.master.res_tracker.res_tree[i], | |
251 | GFP_ATOMIC|__GFP_NOWARN); | |
252 | ||
253 | spin_lock_init(&priv->mfunc.master.res_tracker.lock); | |
254 | return 0 ; | |
255 | } | |
256 | ||
257 | void mlx4_free_resource_tracker(struct mlx4_dev *dev) | |
258 | { | |
259 | struct mlx4_priv *priv = mlx4_priv(dev); | |
260 | int i; | |
261 | ||
262 | if (priv->mfunc.master.res_tracker.slave_list) { | |
263 | for (i = 0 ; i < dev->num_slaves; i++) | |
264 | mlx4_delete_all_resources_for_slave(dev, i); | |
265 | ||
266 | kfree(priv->mfunc.master.res_tracker.slave_list); | |
267 | } | |
268 | } | |
269 | ||
270 | static void update_ud_gid(struct mlx4_dev *dev, | |
271 | struct mlx4_qp_context *qp_ctx, u8 slave) | |
272 | { | |
273 | u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; | |
274 | ||
275 | if (MLX4_QP_ST_UD == ts) | |
276 | qp_ctx->pri_path.mgid_index = 0x80 | slave; | |
277 | ||
278 | mlx4_dbg(dev, "slave %d, new gid index: 0x%x ", | |
279 | slave, qp_ctx->pri_path.mgid_index); | |
280 | } | |
281 | ||
282 | static int mpt_mask(struct mlx4_dev *dev) | |
283 | { | |
284 | return dev->caps.num_mpts - 1; | |
285 | } | |
286 | ||
287 | static void *find_res(struct mlx4_dev *dev, int res_id, | |
288 | enum mlx4_resource type) | |
289 | { | |
290 | struct mlx4_priv *priv = mlx4_priv(dev); | |
291 | ||
292 | return radix_tree_lookup(&priv->mfunc.master.res_tracker.res_tree[type], | |
293 | res_id); | |
294 | } | |
295 | ||
296 | static int get_res(struct mlx4_dev *dev, int slave, int res_id, | |
297 | enum mlx4_resource type, | |
298 | void *res) | |
299 | { | |
300 | struct res_common *r; | |
301 | int err = 0; | |
302 | ||
303 | spin_lock_irq(mlx4_tlock(dev)); | |
304 | r = find_res(dev, res_id, type); | |
305 | if (!r) { | |
306 | err = -ENONET; | |
307 | goto exit; | |
308 | } | |
309 | ||
310 | if (r->state == RES_ANY_BUSY) { | |
311 | err = -EBUSY; | |
312 | goto exit; | |
313 | } | |
314 | ||
315 | if (r->owner != slave) { | |
316 | err = -EPERM; | |
317 | goto exit; | |
318 | } | |
319 | ||
320 | r->from_state = r->state; | |
321 | r->state = RES_ANY_BUSY; | |
322 | mlx4_dbg(dev, "res %s id 0x%x to busy\n", | |
323 | ResourceType(type), r->res_id); | |
324 | ||
325 | if (res) | |
326 | *((struct res_common **)res) = r; | |
327 | ||
328 | exit: | |
329 | spin_unlock_irq(mlx4_tlock(dev)); | |
330 | return err; | |
331 | } | |
332 | ||
333 | int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev, | |
334 | enum mlx4_resource type, | |
335 | int res_id, int *slave) | |
336 | { | |
337 | ||
338 | struct res_common *r; | |
339 | int err = -ENOENT; | |
340 | int id = res_id; | |
341 | ||
342 | if (type == RES_QP) | |
343 | id &= 0x7fffff; | |
996b0541 | 344 | spin_lock(mlx4_tlock(dev)); |
c82e9aa0 EC |
345 | |
346 | r = find_res(dev, id, type); | |
347 | if (r) { | |
348 | *slave = r->owner; | |
349 | err = 0; | |
350 | } | |
996b0541 | 351 | spin_unlock(mlx4_tlock(dev)); |
c82e9aa0 EC |
352 | |
353 | return err; | |
354 | } | |
355 | ||
356 | static void put_res(struct mlx4_dev *dev, int slave, int res_id, | |
357 | enum mlx4_resource type) | |
358 | { | |
359 | struct res_common *r; | |
360 | ||
361 | spin_lock_irq(mlx4_tlock(dev)); | |
362 | r = find_res(dev, res_id, type); | |
363 | if (r) | |
364 | r->state = r->from_state; | |
365 | spin_unlock_irq(mlx4_tlock(dev)); | |
366 | } | |
367 | ||
368 | static struct res_common *alloc_qp_tr(int id) | |
369 | { | |
370 | struct res_qp *ret; | |
371 | ||
372 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
373 | if (!ret) | |
374 | return NULL; | |
375 | ||
376 | ret->com.res_id = id; | |
377 | ret->com.state = RES_QP_RESERVED; | |
2531188b | 378 | ret->local_qpn = id; |
c82e9aa0 EC |
379 | INIT_LIST_HEAD(&ret->mcg_list); |
380 | spin_lock_init(&ret->mcg_spl); | |
381 | ||
382 | return &ret->com; | |
383 | } | |
384 | ||
385 | static struct res_common *alloc_mtt_tr(int id, int order) | |
386 | { | |
387 | struct res_mtt *ret; | |
388 | ||
389 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
390 | if (!ret) | |
391 | return NULL; | |
392 | ||
393 | ret->com.res_id = id; | |
394 | ret->order = order; | |
395 | ret->com.state = RES_MTT_ALLOCATED; | |
396 | atomic_set(&ret->ref_count, 0); | |
397 | ||
398 | return &ret->com; | |
399 | } | |
400 | ||
401 | static struct res_common *alloc_mpt_tr(int id, int key) | |
402 | { | |
403 | struct res_mpt *ret; | |
404 | ||
405 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
406 | if (!ret) | |
407 | return NULL; | |
408 | ||
409 | ret->com.res_id = id; | |
410 | ret->com.state = RES_MPT_RESERVED; | |
411 | ret->key = key; | |
412 | ||
413 | return &ret->com; | |
414 | } | |
415 | ||
416 | static struct res_common *alloc_eq_tr(int id) | |
417 | { | |
418 | struct res_eq *ret; | |
419 | ||
420 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
421 | if (!ret) | |
422 | return NULL; | |
423 | ||
424 | ret->com.res_id = id; | |
425 | ret->com.state = RES_EQ_RESERVED; | |
426 | ||
427 | return &ret->com; | |
428 | } | |
429 | ||
430 | static struct res_common *alloc_cq_tr(int id) | |
431 | { | |
432 | struct res_cq *ret; | |
433 | ||
434 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
435 | if (!ret) | |
436 | return NULL; | |
437 | ||
438 | ret->com.res_id = id; | |
439 | ret->com.state = RES_CQ_ALLOCATED; | |
440 | atomic_set(&ret->ref_count, 0); | |
441 | ||
442 | return &ret->com; | |
443 | } | |
444 | ||
445 | static struct res_common *alloc_srq_tr(int id) | |
446 | { | |
447 | struct res_srq *ret; | |
448 | ||
449 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
450 | if (!ret) | |
451 | return NULL; | |
452 | ||
453 | ret->com.res_id = id; | |
454 | ret->com.state = RES_SRQ_ALLOCATED; | |
455 | atomic_set(&ret->ref_count, 0); | |
456 | ||
457 | return &ret->com; | |
458 | } | |
459 | ||
460 | static struct res_common *alloc_counter_tr(int id) | |
461 | { | |
462 | struct res_counter *ret; | |
463 | ||
464 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
465 | if (!ret) | |
466 | return NULL; | |
467 | ||
468 | ret->com.res_id = id; | |
469 | ret->com.state = RES_COUNTER_ALLOCATED; | |
470 | ||
471 | return &ret->com; | |
472 | } | |
473 | ||
474 | static struct res_common *alloc_tr(int id, enum mlx4_resource type, int slave, | |
475 | int extra) | |
476 | { | |
477 | struct res_common *ret; | |
478 | ||
479 | switch (type) { | |
480 | case RES_QP: | |
481 | ret = alloc_qp_tr(id); | |
482 | break; | |
483 | case RES_MPT: | |
484 | ret = alloc_mpt_tr(id, extra); | |
485 | break; | |
486 | case RES_MTT: | |
487 | ret = alloc_mtt_tr(id, extra); | |
488 | break; | |
489 | case RES_EQ: | |
490 | ret = alloc_eq_tr(id); | |
491 | break; | |
492 | case RES_CQ: | |
493 | ret = alloc_cq_tr(id); | |
494 | break; | |
495 | case RES_SRQ: | |
496 | ret = alloc_srq_tr(id); | |
497 | break; | |
498 | case RES_MAC: | |
499 | printk(KERN_ERR "implementation missing\n"); | |
500 | return NULL; | |
501 | case RES_COUNTER: | |
502 | ret = alloc_counter_tr(id); | |
503 | break; | |
504 | ||
505 | default: | |
506 | return NULL; | |
507 | } | |
508 | if (ret) | |
509 | ret->owner = slave; | |
510 | ||
511 | return ret; | |
512 | } | |
513 | ||
514 | static int add_res_range(struct mlx4_dev *dev, int slave, int base, int count, | |
515 | enum mlx4_resource type, int extra) | |
516 | { | |
517 | int i; | |
518 | int err; | |
519 | struct mlx4_priv *priv = mlx4_priv(dev); | |
520 | struct res_common **res_arr; | |
521 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
522 | struct radix_tree_root *root = &tracker->res_tree[type]; | |
523 | ||
524 | res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL); | |
525 | if (!res_arr) | |
526 | return -ENOMEM; | |
527 | ||
528 | for (i = 0; i < count; ++i) { | |
529 | res_arr[i] = alloc_tr(base + i, type, slave, extra); | |
530 | if (!res_arr[i]) { | |
531 | for (--i; i >= 0; --i) | |
532 | kfree(res_arr[i]); | |
533 | ||
534 | kfree(res_arr); | |
535 | return -ENOMEM; | |
536 | } | |
537 | } | |
538 | ||
539 | spin_lock_irq(mlx4_tlock(dev)); | |
540 | for (i = 0; i < count; ++i) { | |
541 | if (find_res(dev, base + i, type)) { | |
542 | err = -EEXIST; | |
543 | goto undo; | |
544 | } | |
545 | err = radix_tree_insert(root, base + i, res_arr[i]); | |
546 | if (err) | |
547 | goto undo; | |
548 | list_add_tail(&res_arr[i]->list, | |
549 | &tracker->slave_list[slave].res_list[type]); | |
550 | } | |
551 | spin_unlock_irq(mlx4_tlock(dev)); | |
552 | kfree(res_arr); | |
553 | ||
554 | return 0; | |
555 | ||
556 | undo: | |
557 | for (--i; i >= base; --i) | |
558 | radix_tree_delete(&tracker->res_tree[type], i); | |
559 | ||
560 | spin_unlock_irq(mlx4_tlock(dev)); | |
561 | ||
562 | for (i = 0; i < count; ++i) | |
563 | kfree(res_arr[i]); | |
564 | ||
565 | kfree(res_arr); | |
566 | ||
567 | return err; | |
568 | } | |
569 | ||
570 | static int remove_qp_ok(struct res_qp *res) | |
571 | { | |
572 | if (res->com.state == RES_QP_BUSY) | |
573 | return -EBUSY; | |
574 | else if (res->com.state != RES_QP_RESERVED) | |
575 | return -EPERM; | |
576 | ||
577 | return 0; | |
578 | } | |
579 | ||
580 | static int remove_mtt_ok(struct res_mtt *res, int order) | |
581 | { | |
582 | if (res->com.state == RES_MTT_BUSY || | |
583 | atomic_read(&res->ref_count)) { | |
584 | printk(KERN_DEBUG "%s-%d: state %s, ref_count %d\n", | |
585 | __func__, __LINE__, | |
586 | mtt_states_str(res->com.state), | |
587 | atomic_read(&res->ref_count)); | |
588 | return -EBUSY; | |
589 | } else if (res->com.state != RES_MTT_ALLOCATED) | |
590 | return -EPERM; | |
591 | else if (res->order != order) | |
592 | return -EINVAL; | |
593 | ||
594 | return 0; | |
595 | } | |
596 | ||
597 | static int remove_mpt_ok(struct res_mpt *res) | |
598 | { | |
599 | if (res->com.state == RES_MPT_BUSY) | |
600 | return -EBUSY; | |
601 | else if (res->com.state != RES_MPT_RESERVED) | |
602 | return -EPERM; | |
603 | ||
604 | return 0; | |
605 | } | |
606 | ||
607 | static int remove_eq_ok(struct res_eq *res) | |
608 | { | |
609 | if (res->com.state == RES_MPT_BUSY) | |
610 | return -EBUSY; | |
611 | else if (res->com.state != RES_MPT_RESERVED) | |
612 | return -EPERM; | |
613 | ||
614 | return 0; | |
615 | } | |
616 | ||
617 | static int remove_counter_ok(struct res_counter *res) | |
618 | { | |
619 | if (res->com.state == RES_COUNTER_BUSY) | |
620 | return -EBUSY; | |
621 | else if (res->com.state != RES_COUNTER_ALLOCATED) | |
622 | return -EPERM; | |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
627 | static int remove_cq_ok(struct res_cq *res) | |
628 | { | |
629 | if (res->com.state == RES_CQ_BUSY) | |
630 | return -EBUSY; | |
631 | else if (res->com.state != RES_CQ_ALLOCATED) | |
632 | return -EPERM; | |
633 | ||
634 | return 0; | |
635 | } | |
636 | ||
637 | static int remove_srq_ok(struct res_srq *res) | |
638 | { | |
639 | if (res->com.state == RES_SRQ_BUSY) | |
640 | return -EBUSY; | |
641 | else if (res->com.state != RES_SRQ_ALLOCATED) | |
642 | return -EPERM; | |
643 | ||
644 | return 0; | |
645 | } | |
646 | ||
647 | static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra) | |
648 | { | |
649 | switch (type) { | |
650 | case RES_QP: | |
651 | return remove_qp_ok((struct res_qp *)res); | |
652 | case RES_CQ: | |
653 | return remove_cq_ok((struct res_cq *)res); | |
654 | case RES_SRQ: | |
655 | return remove_srq_ok((struct res_srq *)res); | |
656 | case RES_MPT: | |
657 | return remove_mpt_ok((struct res_mpt *)res); | |
658 | case RES_MTT: | |
659 | return remove_mtt_ok((struct res_mtt *)res, extra); | |
660 | case RES_MAC: | |
661 | return -ENOSYS; | |
662 | case RES_EQ: | |
663 | return remove_eq_ok((struct res_eq *)res); | |
664 | case RES_COUNTER: | |
665 | return remove_counter_ok((struct res_counter *)res); | |
666 | default: | |
667 | return -EINVAL; | |
668 | } | |
669 | } | |
670 | ||
671 | static int rem_res_range(struct mlx4_dev *dev, int slave, int base, int count, | |
672 | enum mlx4_resource type, int extra) | |
673 | { | |
674 | int i; | |
675 | int err; | |
676 | struct mlx4_priv *priv = mlx4_priv(dev); | |
677 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
678 | struct res_common *r; | |
679 | ||
680 | spin_lock_irq(mlx4_tlock(dev)); | |
681 | for (i = base; i < base + count; ++i) { | |
682 | r = radix_tree_lookup(&tracker->res_tree[type], i); | |
683 | if (!r) { | |
684 | err = -ENOENT; | |
685 | goto out; | |
686 | } | |
687 | if (r->owner != slave) { | |
688 | err = -EPERM; | |
689 | goto out; | |
690 | } | |
691 | err = remove_ok(r, type, extra); | |
692 | if (err) | |
693 | goto out; | |
694 | } | |
695 | ||
696 | for (i = base; i < base + count; ++i) { | |
697 | r = radix_tree_lookup(&tracker->res_tree[type], i); | |
698 | radix_tree_delete(&tracker->res_tree[type], i); | |
699 | list_del(&r->list); | |
700 | kfree(r); | |
701 | } | |
702 | err = 0; | |
703 | ||
704 | out: | |
705 | spin_unlock_irq(mlx4_tlock(dev)); | |
706 | ||
707 | return err; | |
708 | } | |
709 | ||
710 | static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn, | |
711 | enum res_qp_states state, struct res_qp **qp, | |
712 | int alloc) | |
713 | { | |
714 | struct mlx4_priv *priv = mlx4_priv(dev); | |
715 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
716 | struct res_qp *r; | |
717 | int err = 0; | |
718 | ||
719 | spin_lock_irq(mlx4_tlock(dev)); | |
720 | r = radix_tree_lookup(&tracker->res_tree[RES_QP], qpn); | |
721 | if (!r) | |
722 | err = -ENOENT; | |
723 | else if (r->com.owner != slave) | |
724 | err = -EPERM; | |
725 | else { | |
726 | switch (state) { | |
727 | case RES_QP_BUSY: | |
728 | mlx4_dbg(dev, "%s: failed RES_QP, 0x%x\n", | |
729 | __func__, r->com.res_id); | |
730 | err = -EBUSY; | |
731 | break; | |
732 | ||
733 | case RES_QP_RESERVED: | |
734 | if (r->com.state == RES_QP_MAPPED && !alloc) | |
735 | break; | |
736 | ||
737 | mlx4_dbg(dev, "failed RES_QP, 0x%x\n", r->com.res_id); | |
738 | err = -EINVAL; | |
739 | break; | |
740 | ||
741 | case RES_QP_MAPPED: | |
742 | if ((r->com.state == RES_QP_RESERVED && alloc) || | |
743 | r->com.state == RES_QP_HW) | |
744 | break; | |
745 | else { | |
746 | mlx4_dbg(dev, "failed RES_QP, 0x%x\n", | |
747 | r->com.res_id); | |
748 | err = -EINVAL; | |
749 | } | |
750 | ||
751 | break; | |
752 | ||
753 | case RES_QP_HW: | |
754 | if (r->com.state != RES_QP_MAPPED) | |
755 | err = -EINVAL; | |
756 | break; | |
757 | default: | |
758 | err = -EINVAL; | |
759 | } | |
760 | ||
761 | if (!err) { | |
762 | r->com.from_state = r->com.state; | |
763 | r->com.to_state = state; | |
764 | r->com.state = RES_QP_BUSY; | |
765 | if (qp) | |
766 | *qp = (struct res_qp *)r; | |
767 | } | |
768 | } | |
769 | ||
770 | spin_unlock_irq(mlx4_tlock(dev)); | |
771 | ||
772 | return err; | |
773 | } | |
774 | ||
775 | static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index, | |
776 | enum res_mpt_states state, struct res_mpt **mpt) | |
777 | { | |
778 | struct mlx4_priv *priv = mlx4_priv(dev); | |
779 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
780 | struct res_mpt *r; | |
781 | int err = 0; | |
782 | ||
783 | spin_lock_irq(mlx4_tlock(dev)); | |
784 | r = radix_tree_lookup(&tracker->res_tree[RES_MPT], index); | |
785 | if (!r) | |
786 | err = -ENOENT; | |
787 | else if (r->com.owner != slave) | |
788 | err = -EPERM; | |
789 | else { | |
790 | switch (state) { | |
791 | case RES_MPT_BUSY: | |
792 | err = -EINVAL; | |
793 | break; | |
794 | ||
795 | case RES_MPT_RESERVED: | |
796 | if (r->com.state != RES_MPT_MAPPED) | |
797 | err = -EINVAL; | |
798 | break; | |
799 | ||
800 | case RES_MPT_MAPPED: | |
801 | if (r->com.state != RES_MPT_RESERVED && | |
802 | r->com.state != RES_MPT_HW) | |
803 | err = -EINVAL; | |
804 | break; | |
805 | ||
806 | case RES_MPT_HW: | |
807 | if (r->com.state != RES_MPT_MAPPED) | |
808 | err = -EINVAL; | |
809 | break; | |
810 | default: | |
811 | err = -EINVAL; | |
812 | } | |
813 | ||
814 | if (!err) { | |
815 | r->com.from_state = r->com.state; | |
816 | r->com.to_state = state; | |
817 | r->com.state = RES_MPT_BUSY; | |
818 | if (mpt) | |
819 | *mpt = (struct res_mpt *)r; | |
820 | } | |
821 | } | |
822 | ||
823 | spin_unlock_irq(mlx4_tlock(dev)); | |
824 | ||
825 | return err; | |
826 | } | |
827 | ||
828 | static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, | |
829 | enum res_eq_states state, struct res_eq **eq) | |
830 | { | |
831 | struct mlx4_priv *priv = mlx4_priv(dev); | |
832 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
833 | struct res_eq *r; | |
834 | int err = 0; | |
835 | ||
836 | spin_lock_irq(mlx4_tlock(dev)); | |
837 | r = radix_tree_lookup(&tracker->res_tree[RES_EQ], index); | |
838 | if (!r) | |
839 | err = -ENOENT; | |
840 | else if (r->com.owner != slave) | |
841 | err = -EPERM; | |
842 | else { | |
843 | switch (state) { | |
844 | case RES_EQ_BUSY: | |
845 | err = -EINVAL; | |
846 | break; | |
847 | ||
848 | case RES_EQ_RESERVED: | |
849 | if (r->com.state != RES_EQ_HW) | |
850 | err = -EINVAL; | |
851 | break; | |
852 | ||
853 | case RES_EQ_HW: | |
854 | if (r->com.state != RES_EQ_RESERVED) | |
855 | err = -EINVAL; | |
856 | break; | |
857 | ||
858 | default: | |
859 | err = -EINVAL; | |
860 | } | |
861 | ||
862 | if (!err) { | |
863 | r->com.from_state = r->com.state; | |
864 | r->com.to_state = state; | |
865 | r->com.state = RES_EQ_BUSY; | |
866 | if (eq) | |
867 | *eq = r; | |
868 | } | |
869 | } | |
870 | ||
871 | spin_unlock_irq(mlx4_tlock(dev)); | |
872 | ||
873 | return err; | |
874 | } | |
875 | ||
876 | static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn, | |
877 | enum res_cq_states state, struct res_cq **cq) | |
878 | { | |
879 | struct mlx4_priv *priv = mlx4_priv(dev); | |
880 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
881 | struct res_cq *r; | |
882 | int err; | |
883 | ||
884 | spin_lock_irq(mlx4_tlock(dev)); | |
885 | r = radix_tree_lookup(&tracker->res_tree[RES_CQ], cqn); | |
886 | if (!r) | |
887 | err = -ENOENT; | |
888 | else if (r->com.owner != slave) | |
889 | err = -EPERM; | |
890 | else { | |
891 | switch (state) { | |
892 | case RES_CQ_BUSY: | |
893 | err = -EBUSY; | |
894 | break; | |
895 | ||
896 | case RES_CQ_ALLOCATED: | |
897 | if (r->com.state != RES_CQ_HW) | |
898 | err = -EINVAL; | |
899 | else if (atomic_read(&r->ref_count)) | |
900 | err = -EBUSY; | |
901 | else | |
902 | err = 0; | |
903 | break; | |
904 | ||
905 | case RES_CQ_HW: | |
906 | if (r->com.state != RES_CQ_ALLOCATED) | |
907 | err = -EINVAL; | |
908 | else | |
909 | err = 0; | |
910 | break; | |
911 | ||
912 | default: | |
913 | err = -EINVAL; | |
914 | } | |
915 | ||
916 | if (!err) { | |
917 | r->com.from_state = r->com.state; | |
918 | r->com.to_state = state; | |
919 | r->com.state = RES_CQ_BUSY; | |
920 | if (cq) | |
921 | *cq = r; | |
922 | } | |
923 | } | |
924 | ||
925 | spin_unlock_irq(mlx4_tlock(dev)); | |
926 | ||
927 | return err; | |
928 | } | |
929 | ||
930 | static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, | |
931 | enum res_cq_states state, struct res_srq **srq) | |
932 | { | |
933 | struct mlx4_priv *priv = mlx4_priv(dev); | |
934 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
935 | struct res_srq *r; | |
936 | int err = 0; | |
937 | ||
938 | spin_lock_irq(mlx4_tlock(dev)); | |
939 | r = radix_tree_lookup(&tracker->res_tree[RES_SRQ], index); | |
940 | if (!r) | |
941 | err = -ENOENT; | |
942 | else if (r->com.owner != slave) | |
943 | err = -EPERM; | |
944 | else { | |
945 | switch (state) { | |
946 | case RES_SRQ_BUSY: | |
947 | err = -EINVAL; | |
948 | break; | |
949 | ||
950 | case RES_SRQ_ALLOCATED: | |
951 | if (r->com.state != RES_SRQ_HW) | |
952 | err = -EINVAL; | |
953 | else if (atomic_read(&r->ref_count)) | |
954 | err = -EBUSY; | |
955 | break; | |
956 | ||
957 | case RES_SRQ_HW: | |
958 | if (r->com.state != RES_SRQ_ALLOCATED) | |
959 | err = -EINVAL; | |
960 | break; | |
961 | ||
962 | default: | |
963 | err = -EINVAL; | |
964 | } | |
965 | ||
966 | if (!err) { | |
967 | r->com.from_state = r->com.state; | |
968 | r->com.to_state = state; | |
969 | r->com.state = RES_SRQ_BUSY; | |
970 | if (srq) | |
971 | *srq = r; | |
972 | } | |
973 | } | |
974 | ||
975 | spin_unlock_irq(mlx4_tlock(dev)); | |
976 | ||
977 | return err; | |
978 | } | |
979 | ||
980 | static void res_abort_move(struct mlx4_dev *dev, int slave, | |
981 | enum mlx4_resource type, int id) | |
982 | { | |
983 | struct mlx4_priv *priv = mlx4_priv(dev); | |
984 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
985 | struct res_common *r; | |
986 | ||
987 | spin_lock_irq(mlx4_tlock(dev)); | |
988 | r = radix_tree_lookup(&tracker->res_tree[type], id); | |
989 | if (r && (r->owner == slave)) | |
990 | r->state = r->from_state; | |
991 | spin_unlock_irq(mlx4_tlock(dev)); | |
992 | } | |
993 | ||
994 | static void res_end_move(struct mlx4_dev *dev, int slave, | |
995 | enum mlx4_resource type, int id) | |
996 | { | |
997 | struct mlx4_priv *priv = mlx4_priv(dev); | |
998 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
999 | struct res_common *r; | |
1000 | ||
1001 | spin_lock_irq(mlx4_tlock(dev)); | |
1002 | r = radix_tree_lookup(&tracker->res_tree[type], id); | |
1003 | if (r && (r->owner == slave)) | |
1004 | r->state = r->to_state; | |
1005 | spin_unlock_irq(mlx4_tlock(dev)); | |
1006 | } | |
1007 | ||
1008 | static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn) | |
1009 | { | |
1010 | return mlx4_is_qp_reserved(dev, qpn); | |
1011 | } | |
1012 | ||
1013 | static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1014 | u64 in_param, u64 *out_param) | |
1015 | { | |
1016 | int err; | |
1017 | int count; | |
1018 | int align; | |
1019 | int base; | |
1020 | int qpn; | |
1021 | ||
1022 | switch (op) { | |
1023 | case RES_OP_RESERVE: | |
1024 | count = get_param_l(&in_param); | |
1025 | align = get_param_h(&in_param); | |
1026 | err = __mlx4_qp_reserve_range(dev, count, align, &base); | |
1027 | if (err) | |
1028 | return err; | |
1029 | ||
1030 | err = add_res_range(dev, slave, base, count, RES_QP, 0); | |
1031 | if (err) { | |
1032 | __mlx4_qp_release_range(dev, base, count); | |
1033 | return err; | |
1034 | } | |
1035 | set_param_l(out_param, base); | |
1036 | break; | |
1037 | case RES_OP_MAP_ICM: | |
1038 | qpn = get_param_l(&in_param) & 0x7fffff; | |
1039 | if (valid_reserved(dev, slave, qpn)) { | |
1040 | err = add_res_range(dev, slave, qpn, 1, RES_QP, 0); | |
1041 | if (err) | |
1042 | return err; | |
1043 | } | |
1044 | ||
1045 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, | |
1046 | NULL, 1); | |
1047 | if (err) | |
1048 | return err; | |
1049 | ||
1050 | if (!valid_reserved(dev, slave, qpn)) { | |
1051 | err = __mlx4_qp_alloc_icm(dev, qpn); | |
1052 | if (err) { | |
1053 | res_abort_move(dev, slave, RES_QP, qpn); | |
1054 | return err; | |
1055 | } | |
1056 | } | |
1057 | ||
1058 | res_end_move(dev, slave, RES_QP, qpn); | |
1059 | break; | |
1060 | ||
1061 | default: | |
1062 | err = -EINVAL; | |
1063 | break; | |
1064 | } | |
1065 | return err; | |
1066 | } | |
1067 | ||
1068 | static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1069 | u64 in_param, u64 *out_param) | |
1070 | { | |
1071 | int err = -EINVAL; | |
1072 | int base; | |
1073 | int order; | |
1074 | ||
1075 | if (op != RES_OP_RESERVE_AND_MAP) | |
1076 | return err; | |
1077 | ||
1078 | order = get_param_l(&in_param); | |
1079 | base = __mlx4_alloc_mtt_range(dev, order); | |
1080 | if (base == -1) | |
1081 | return -ENOMEM; | |
1082 | ||
1083 | err = add_res_range(dev, slave, base, 1, RES_MTT, order); | |
1084 | if (err) | |
1085 | __mlx4_free_mtt_range(dev, base, order); | |
1086 | else | |
1087 | set_param_l(out_param, base); | |
1088 | ||
1089 | return err; | |
1090 | } | |
1091 | ||
1092 | static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1093 | u64 in_param, u64 *out_param) | |
1094 | { | |
1095 | int err = -EINVAL; | |
1096 | int index; | |
1097 | int id; | |
1098 | struct res_mpt *mpt; | |
1099 | ||
1100 | switch (op) { | |
1101 | case RES_OP_RESERVE: | |
1102 | index = __mlx4_mr_reserve(dev); | |
1103 | if (index == -1) | |
1104 | break; | |
1105 | id = index & mpt_mask(dev); | |
1106 | ||
1107 | err = add_res_range(dev, slave, id, 1, RES_MPT, index); | |
1108 | if (err) { | |
1109 | __mlx4_mr_release(dev, index); | |
1110 | break; | |
1111 | } | |
1112 | set_param_l(out_param, index); | |
1113 | break; | |
1114 | case RES_OP_MAP_ICM: | |
1115 | index = get_param_l(&in_param); | |
1116 | id = index & mpt_mask(dev); | |
1117 | err = mr_res_start_move_to(dev, slave, id, | |
1118 | RES_MPT_MAPPED, &mpt); | |
1119 | if (err) | |
1120 | return err; | |
1121 | ||
1122 | err = __mlx4_mr_alloc_icm(dev, mpt->key); | |
1123 | if (err) { | |
1124 | res_abort_move(dev, slave, RES_MPT, id); | |
1125 | return err; | |
1126 | } | |
1127 | ||
1128 | res_end_move(dev, slave, RES_MPT, id); | |
1129 | break; | |
1130 | } | |
1131 | return err; | |
1132 | } | |
1133 | ||
1134 | static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1135 | u64 in_param, u64 *out_param) | |
1136 | { | |
1137 | int cqn; | |
1138 | int err; | |
1139 | ||
1140 | switch (op) { | |
1141 | case RES_OP_RESERVE_AND_MAP: | |
1142 | err = __mlx4_cq_alloc_icm(dev, &cqn); | |
1143 | if (err) | |
1144 | break; | |
1145 | ||
1146 | err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0); | |
1147 | if (err) { | |
1148 | __mlx4_cq_free_icm(dev, cqn); | |
1149 | break; | |
1150 | } | |
1151 | ||
1152 | set_param_l(out_param, cqn); | |
1153 | break; | |
1154 | ||
1155 | default: | |
1156 | err = -EINVAL; | |
1157 | } | |
1158 | ||
1159 | return err; | |
1160 | } | |
1161 | ||
1162 | static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1163 | u64 in_param, u64 *out_param) | |
1164 | { | |
1165 | int srqn; | |
1166 | int err; | |
1167 | ||
1168 | switch (op) { | |
1169 | case RES_OP_RESERVE_AND_MAP: | |
1170 | err = __mlx4_srq_alloc_icm(dev, &srqn); | |
1171 | if (err) | |
1172 | break; | |
1173 | ||
1174 | err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0); | |
1175 | if (err) { | |
1176 | __mlx4_srq_free_icm(dev, srqn); | |
1177 | break; | |
1178 | } | |
1179 | ||
1180 | set_param_l(out_param, srqn); | |
1181 | break; | |
1182 | ||
1183 | default: | |
1184 | err = -EINVAL; | |
1185 | } | |
1186 | ||
1187 | return err; | |
1188 | } | |
1189 | ||
1190 | static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port) | |
1191 | { | |
1192 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1193 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1194 | struct mac_res *res; | |
1195 | ||
1196 | res = kzalloc(sizeof *res, GFP_KERNEL); | |
1197 | if (!res) | |
1198 | return -ENOMEM; | |
1199 | res->mac = mac; | |
1200 | res->port = (u8) port; | |
1201 | list_add_tail(&res->list, | |
1202 | &tracker->slave_list[slave].res_list[RES_MAC]); | |
1203 | return 0; | |
1204 | } | |
1205 | ||
1206 | static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac, | |
1207 | int port) | |
1208 | { | |
1209 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1210 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1211 | struct list_head *mac_list = | |
1212 | &tracker->slave_list[slave].res_list[RES_MAC]; | |
1213 | struct mac_res *res, *tmp; | |
1214 | ||
1215 | list_for_each_entry_safe(res, tmp, mac_list, list) { | |
1216 | if (res->mac == mac && res->port == (u8) port) { | |
1217 | list_del(&res->list); | |
1218 | kfree(res); | |
1219 | break; | |
1220 | } | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | static void rem_slave_macs(struct mlx4_dev *dev, int slave) | |
1225 | { | |
1226 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1227 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1228 | struct list_head *mac_list = | |
1229 | &tracker->slave_list[slave].res_list[RES_MAC]; | |
1230 | struct mac_res *res, *tmp; | |
1231 | ||
1232 | list_for_each_entry_safe(res, tmp, mac_list, list) { | |
1233 | list_del(&res->list); | |
1234 | __mlx4_unregister_mac(dev, res->port, res->mac); | |
1235 | kfree(res); | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1240 | u64 in_param, u64 *out_param) | |
1241 | { | |
1242 | int err = -EINVAL; | |
1243 | int port; | |
1244 | u64 mac; | |
1245 | ||
1246 | if (op != RES_OP_RESERVE_AND_MAP) | |
1247 | return err; | |
1248 | ||
1249 | port = get_param_l(out_param); | |
1250 | mac = in_param; | |
1251 | ||
1252 | err = __mlx4_register_mac(dev, port, mac); | |
1253 | if (err >= 0) { | |
1254 | set_param_l(out_param, err); | |
1255 | err = 0; | |
1256 | } | |
1257 | ||
1258 | if (!err) { | |
1259 | err = mac_add_to_slave(dev, slave, mac, port); | |
1260 | if (err) | |
1261 | __mlx4_unregister_mac(dev, port, mac); | |
1262 | } | |
1263 | return err; | |
1264 | } | |
1265 | ||
ffe455ad EE |
1266 | static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
1267 | u64 in_param, u64 *out_param) | |
1268 | { | |
1269 | return 0; | |
1270 | } | |
1271 | ||
c82e9aa0 EC |
1272 | int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave, |
1273 | struct mlx4_vhcr *vhcr, | |
1274 | struct mlx4_cmd_mailbox *inbox, | |
1275 | struct mlx4_cmd_mailbox *outbox, | |
1276 | struct mlx4_cmd_info *cmd) | |
1277 | { | |
1278 | int err; | |
1279 | int alop = vhcr->op_modifier; | |
1280 | ||
1281 | switch (vhcr->in_modifier) { | |
1282 | case RES_QP: | |
1283 | err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1284 | vhcr->in_param, &vhcr->out_param); | |
1285 | break; | |
1286 | ||
1287 | case RES_MTT: | |
1288 | err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1289 | vhcr->in_param, &vhcr->out_param); | |
1290 | break; | |
1291 | ||
1292 | case RES_MPT: | |
1293 | err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1294 | vhcr->in_param, &vhcr->out_param); | |
1295 | break; | |
1296 | ||
1297 | case RES_CQ: | |
1298 | err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1299 | vhcr->in_param, &vhcr->out_param); | |
1300 | break; | |
1301 | ||
1302 | case RES_SRQ: | |
1303 | err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1304 | vhcr->in_param, &vhcr->out_param); | |
1305 | break; | |
1306 | ||
1307 | case RES_MAC: | |
1308 | err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1309 | vhcr->in_param, &vhcr->out_param); | |
1310 | break; | |
1311 | ||
ffe455ad EE |
1312 | case RES_VLAN: |
1313 | err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1314 | vhcr->in_param, &vhcr->out_param); | |
1315 | break; | |
1316 | ||
c82e9aa0 EC |
1317 | default: |
1318 | err = -EINVAL; | |
1319 | break; | |
1320 | } | |
1321 | ||
1322 | return err; | |
1323 | } | |
1324 | ||
1325 | static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1326 | u64 in_param) | |
1327 | { | |
1328 | int err; | |
1329 | int count; | |
1330 | int base; | |
1331 | int qpn; | |
1332 | ||
1333 | switch (op) { | |
1334 | case RES_OP_RESERVE: | |
1335 | base = get_param_l(&in_param) & 0x7fffff; | |
1336 | count = get_param_h(&in_param); | |
1337 | err = rem_res_range(dev, slave, base, count, RES_QP, 0); | |
1338 | if (err) | |
1339 | break; | |
1340 | __mlx4_qp_release_range(dev, base, count); | |
1341 | break; | |
1342 | case RES_OP_MAP_ICM: | |
1343 | qpn = get_param_l(&in_param) & 0x7fffff; | |
1344 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED, | |
1345 | NULL, 0); | |
1346 | if (err) | |
1347 | return err; | |
1348 | ||
1349 | if (!valid_reserved(dev, slave, qpn)) | |
1350 | __mlx4_qp_free_icm(dev, qpn); | |
1351 | ||
1352 | res_end_move(dev, slave, RES_QP, qpn); | |
1353 | ||
1354 | if (valid_reserved(dev, slave, qpn)) | |
1355 | err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0); | |
1356 | break; | |
1357 | default: | |
1358 | err = -EINVAL; | |
1359 | break; | |
1360 | } | |
1361 | return err; | |
1362 | } | |
1363 | ||
1364 | static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1365 | u64 in_param, u64 *out_param) | |
1366 | { | |
1367 | int err = -EINVAL; | |
1368 | int base; | |
1369 | int order; | |
1370 | ||
1371 | if (op != RES_OP_RESERVE_AND_MAP) | |
1372 | return err; | |
1373 | ||
1374 | base = get_param_l(&in_param); | |
1375 | order = get_param_h(&in_param); | |
1376 | err = rem_res_range(dev, slave, base, 1, RES_MTT, order); | |
1377 | if (!err) | |
1378 | __mlx4_free_mtt_range(dev, base, order); | |
1379 | return err; | |
1380 | } | |
1381 | ||
1382 | static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1383 | u64 in_param) | |
1384 | { | |
1385 | int err = -EINVAL; | |
1386 | int index; | |
1387 | int id; | |
1388 | struct res_mpt *mpt; | |
1389 | ||
1390 | switch (op) { | |
1391 | case RES_OP_RESERVE: | |
1392 | index = get_param_l(&in_param); | |
1393 | id = index & mpt_mask(dev); | |
1394 | err = get_res(dev, slave, id, RES_MPT, &mpt); | |
1395 | if (err) | |
1396 | break; | |
1397 | index = mpt->key; | |
1398 | put_res(dev, slave, id, RES_MPT); | |
1399 | ||
1400 | err = rem_res_range(dev, slave, id, 1, RES_MPT, 0); | |
1401 | if (err) | |
1402 | break; | |
1403 | __mlx4_mr_release(dev, index); | |
1404 | break; | |
1405 | case RES_OP_MAP_ICM: | |
1406 | index = get_param_l(&in_param); | |
1407 | id = index & mpt_mask(dev); | |
1408 | err = mr_res_start_move_to(dev, slave, id, | |
1409 | RES_MPT_RESERVED, &mpt); | |
1410 | if (err) | |
1411 | return err; | |
1412 | ||
1413 | __mlx4_mr_free_icm(dev, mpt->key); | |
1414 | res_end_move(dev, slave, RES_MPT, id); | |
1415 | return err; | |
1416 | break; | |
1417 | default: | |
1418 | err = -EINVAL; | |
1419 | break; | |
1420 | } | |
1421 | return err; | |
1422 | } | |
1423 | ||
1424 | static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1425 | u64 in_param, u64 *out_param) | |
1426 | { | |
1427 | int cqn; | |
1428 | int err; | |
1429 | ||
1430 | switch (op) { | |
1431 | case RES_OP_RESERVE_AND_MAP: | |
1432 | cqn = get_param_l(&in_param); | |
1433 | err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0); | |
1434 | if (err) | |
1435 | break; | |
1436 | ||
1437 | __mlx4_cq_free_icm(dev, cqn); | |
1438 | break; | |
1439 | ||
1440 | default: | |
1441 | err = -EINVAL; | |
1442 | break; | |
1443 | } | |
1444 | ||
1445 | return err; | |
1446 | } | |
1447 | ||
1448 | static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1449 | u64 in_param, u64 *out_param) | |
1450 | { | |
1451 | int srqn; | |
1452 | int err; | |
1453 | ||
1454 | switch (op) { | |
1455 | case RES_OP_RESERVE_AND_MAP: | |
1456 | srqn = get_param_l(&in_param); | |
1457 | err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0); | |
1458 | if (err) | |
1459 | break; | |
1460 | ||
1461 | __mlx4_srq_free_icm(dev, srqn); | |
1462 | break; | |
1463 | ||
1464 | default: | |
1465 | err = -EINVAL; | |
1466 | break; | |
1467 | } | |
1468 | ||
1469 | return err; | |
1470 | } | |
1471 | ||
1472 | static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1473 | u64 in_param, u64 *out_param) | |
1474 | { | |
1475 | int port; | |
1476 | int err = 0; | |
1477 | ||
1478 | switch (op) { | |
1479 | case RES_OP_RESERVE_AND_MAP: | |
1480 | port = get_param_l(out_param); | |
1481 | mac_del_from_slave(dev, slave, in_param, port); | |
1482 | __mlx4_unregister_mac(dev, port, in_param); | |
1483 | break; | |
1484 | default: | |
1485 | err = -EINVAL; | |
1486 | break; | |
1487 | } | |
1488 | ||
1489 | return err; | |
1490 | ||
1491 | } | |
1492 | ||
ffe455ad EE |
1493 | static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
1494 | u64 in_param, u64 *out_param) | |
1495 | { | |
1496 | return 0; | |
1497 | } | |
1498 | ||
c82e9aa0 EC |
1499 | int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave, |
1500 | struct mlx4_vhcr *vhcr, | |
1501 | struct mlx4_cmd_mailbox *inbox, | |
1502 | struct mlx4_cmd_mailbox *outbox, | |
1503 | struct mlx4_cmd_info *cmd) | |
1504 | { | |
1505 | int err = -EINVAL; | |
1506 | int alop = vhcr->op_modifier; | |
1507 | ||
1508 | switch (vhcr->in_modifier) { | |
1509 | case RES_QP: | |
1510 | err = qp_free_res(dev, slave, vhcr->op_modifier, alop, | |
1511 | vhcr->in_param); | |
1512 | break; | |
1513 | ||
1514 | case RES_MTT: | |
1515 | err = mtt_free_res(dev, slave, vhcr->op_modifier, alop, | |
1516 | vhcr->in_param, &vhcr->out_param); | |
1517 | break; | |
1518 | ||
1519 | case RES_MPT: | |
1520 | err = mpt_free_res(dev, slave, vhcr->op_modifier, alop, | |
1521 | vhcr->in_param); | |
1522 | break; | |
1523 | ||
1524 | case RES_CQ: | |
1525 | err = cq_free_res(dev, slave, vhcr->op_modifier, alop, | |
1526 | vhcr->in_param, &vhcr->out_param); | |
1527 | break; | |
1528 | ||
1529 | case RES_SRQ: | |
1530 | err = srq_free_res(dev, slave, vhcr->op_modifier, alop, | |
1531 | vhcr->in_param, &vhcr->out_param); | |
1532 | break; | |
1533 | ||
1534 | case RES_MAC: | |
1535 | err = mac_free_res(dev, slave, vhcr->op_modifier, alop, | |
1536 | vhcr->in_param, &vhcr->out_param); | |
1537 | break; | |
1538 | ||
ffe455ad EE |
1539 | case RES_VLAN: |
1540 | err = vlan_free_res(dev, slave, vhcr->op_modifier, alop, | |
1541 | vhcr->in_param, &vhcr->out_param); | |
1542 | break; | |
1543 | ||
c82e9aa0 EC |
1544 | default: |
1545 | break; | |
1546 | } | |
1547 | return err; | |
1548 | } | |
1549 | ||
1550 | /* ugly but other choices are uglier */ | |
1551 | static int mr_phys_mpt(struct mlx4_mpt_entry *mpt) | |
1552 | { | |
1553 | return (be32_to_cpu(mpt->flags) >> 9) & 1; | |
1554 | } | |
1555 | ||
2b8fb286 | 1556 | static int mr_get_mtt_addr(struct mlx4_mpt_entry *mpt) |
c82e9aa0 | 1557 | { |
2b8fb286 | 1558 | return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8; |
c82e9aa0 EC |
1559 | } |
1560 | ||
1561 | static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt) | |
1562 | { | |
1563 | return be32_to_cpu(mpt->mtt_sz); | |
1564 | } | |
1565 | ||
2b8fb286 | 1566 | static int qp_get_mtt_addr(struct mlx4_qp_context *qpc) |
c82e9aa0 EC |
1567 | { |
1568 | return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8; | |
1569 | } | |
1570 | ||
2b8fb286 | 1571 | static int srq_get_mtt_addr(struct mlx4_srq_context *srqc) |
c82e9aa0 EC |
1572 | { |
1573 | return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8; | |
1574 | } | |
1575 | ||
1576 | static int qp_get_mtt_size(struct mlx4_qp_context *qpc) | |
1577 | { | |
1578 | int page_shift = (qpc->log_page_size & 0x3f) + 12; | |
1579 | int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf; | |
1580 | int log_sq_sride = qpc->sq_size_stride & 7; | |
1581 | int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf; | |
1582 | int log_rq_stride = qpc->rq_size_stride & 7; | |
1583 | int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1; | |
1584 | int rss = (be32_to_cpu(qpc->flags) >> 13) & 1; | |
1585 | int xrc = (be32_to_cpu(qpc->local_qpn) >> 23) & 1; | |
1586 | int sq_size; | |
1587 | int rq_size; | |
1588 | int total_pages; | |
1589 | int total_mem; | |
1590 | int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f; | |
1591 | ||
1592 | sq_size = 1 << (log_sq_size + log_sq_sride + 4); | |
1593 | rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4)); | |
1594 | total_mem = sq_size + rq_size; | |
1595 | total_pages = | |
1596 | roundup_pow_of_two((total_mem + (page_offset << 6)) >> | |
1597 | page_shift); | |
1598 | ||
1599 | return total_pages; | |
1600 | } | |
1601 | ||
c82e9aa0 EC |
1602 | static int check_mtt_range(struct mlx4_dev *dev, int slave, int start, |
1603 | int size, struct res_mtt *mtt) | |
1604 | { | |
2b8fb286 MA |
1605 | int res_start = mtt->com.res_id; |
1606 | int res_size = (1 << mtt->order); | |
c82e9aa0 EC |
1607 | |
1608 | if (start < res_start || start + size > res_start + res_size) | |
1609 | return -EPERM; | |
1610 | return 0; | |
1611 | } | |
1612 | ||
1613 | int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave, | |
1614 | struct mlx4_vhcr *vhcr, | |
1615 | struct mlx4_cmd_mailbox *inbox, | |
1616 | struct mlx4_cmd_mailbox *outbox, | |
1617 | struct mlx4_cmd_info *cmd) | |
1618 | { | |
1619 | int err; | |
1620 | int index = vhcr->in_modifier; | |
1621 | struct res_mtt *mtt; | |
1622 | struct res_mpt *mpt; | |
2b8fb286 | 1623 | int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
1624 | int phys; |
1625 | int id; | |
1626 | ||
1627 | id = index & mpt_mask(dev); | |
1628 | err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt); | |
1629 | if (err) | |
1630 | return err; | |
1631 | ||
1632 | phys = mr_phys_mpt(inbox->buf); | |
1633 | if (!phys) { | |
2b8fb286 | 1634 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
1635 | if (err) |
1636 | goto ex_abort; | |
1637 | ||
1638 | err = check_mtt_range(dev, slave, mtt_base, | |
1639 | mr_get_mtt_size(inbox->buf), mtt); | |
1640 | if (err) | |
1641 | goto ex_put; | |
1642 | ||
1643 | mpt->mtt = mtt; | |
1644 | } | |
1645 | ||
c82e9aa0 EC |
1646 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
1647 | if (err) | |
1648 | goto ex_put; | |
1649 | ||
1650 | if (!phys) { | |
1651 | atomic_inc(&mtt->ref_count); | |
1652 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
1653 | } | |
1654 | ||
1655 | res_end_move(dev, slave, RES_MPT, id); | |
1656 | return 0; | |
1657 | ||
1658 | ex_put: | |
1659 | if (!phys) | |
1660 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
1661 | ex_abort: | |
1662 | res_abort_move(dev, slave, RES_MPT, id); | |
1663 | ||
1664 | return err; | |
1665 | } | |
1666 | ||
1667 | int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave, | |
1668 | struct mlx4_vhcr *vhcr, | |
1669 | struct mlx4_cmd_mailbox *inbox, | |
1670 | struct mlx4_cmd_mailbox *outbox, | |
1671 | struct mlx4_cmd_info *cmd) | |
1672 | { | |
1673 | int err; | |
1674 | int index = vhcr->in_modifier; | |
1675 | struct res_mpt *mpt; | |
1676 | int id; | |
1677 | ||
1678 | id = index & mpt_mask(dev); | |
1679 | err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt); | |
1680 | if (err) | |
1681 | return err; | |
1682 | ||
1683 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1684 | if (err) | |
1685 | goto ex_abort; | |
1686 | ||
1687 | if (mpt->mtt) | |
1688 | atomic_dec(&mpt->mtt->ref_count); | |
1689 | ||
1690 | res_end_move(dev, slave, RES_MPT, id); | |
1691 | return 0; | |
1692 | ||
1693 | ex_abort: | |
1694 | res_abort_move(dev, slave, RES_MPT, id); | |
1695 | ||
1696 | return err; | |
1697 | } | |
1698 | ||
1699 | int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave, | |
1700 | struct mlx4_vhcr *vhcr, | |
1701 | struct mlx4_cmd_mailbox *inbox, | |
1702 | struct mlx4_cmd_mailbox *outbox, | |
1703 | struct mlx4_cmd_info *cmd) | |
1704 | { | |
1705 | int err; | |
1706 | int index = vhcr->in_modifier; | |
1707 | struct res_mpt *mpt; | |
1708 | int id; | |
1709 | ||
1710 | id = index & mpt_mask(dev); | |
1711 | err = get_res(dev, slave, id, RES_MPT, &mpt); | |
1712 | if (err) | |
1713 | return err; | |
1714 | ||
1715 | if (mpt->com.from_state != RES_MPT_HW) { | |
1716 | err = -EBUSY; | |
1717 | goto out; | |
1718 | } | |
1719 | ||
1720 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1721 | ||
1722 | out: | |
1723 | put_res(dev, slave, id, RES_MPT); | |
1724 | return err; | |
1725 | } | |
1726 | ||
1727 | static int qp_get_rcqn(struct mlx4_qp_context *qpc) | |
1728 | { | |
1729 | return be32_to_cpu(qpc->cqn_recv) & 0xffffff; | |
1730 | } | |
1731 | ||
1732 | static int qp_get_scqn(struct mlx4_qp_context *qpc) | |
1733 | { | |
1734 | return be32_to_cpu(qpc->cqn_send) & 0xffffff; | |
1735 | } | |
1736 | ||
1737 | static u32 qp_get_srqn(struct mlx4_qp_context *qpc) | |
1738 | { | |
1739 | return be32_to_cpu(qpc->srqn) & 0x1ffffff; | |
1740 | } | |
1741 | ||
1742 | int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave, | |
1743 | struct mlx4_vhcr *vhcr, | |
1744 | struct mlx4_cmd_mailbox *inbox, | |
1745 | struct mlx4_cmd_mailbox *outbox, | |
1746 | struct mlx4_cmd_info *cmd) | |
1747 | { | |
1748 | int err; | |
1749 | int qpn = vhcr->in_modifier & 0x7fffff; | |
1750 | struct res_mtt *mtt; | |
1751 | struct res_qp *qp; | |
1752 | struct mlx4_qp_context *qpc = inbox->buf + 8; | |
2b8fb286 | 1753 | int mtt_base = qp_get_mtt_addr(qpc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
1754 | int mtt_size = qp_get_mtt_size(qpc); |
1755 | struct res_cq *rcq; | |
1756 | struct res_cq *scq; | |
1757 | int rcqn = qp_get_rcqn(qpc); | |
1758 | int scqn = qp_get_scqn(qpc); | |
1759 | u32 srqn = qp_get_srqn(qpc) & 0xffffff; | |
1760 | int use_srq = (qp_get_srqn(qpc) >> 24) & 1; | |
1761 | struct res_srq *srq; | |
1762 | int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff; | |
1763 | ||
1764 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0); | |
1765 | if (err) | |
1766 | return err; | |
1767 | qp->local_qpn = local_qpn; | |
1768 | ||
2b8fb286 | 1769 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
1770 | if (err) |
1771 | goto ex_abort; | |
1772 | ||
1773 | err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); | |
1774 | if (err) | |
1775 | goto ex_put_mtt; | |
1776 | ||
c82e9aa0 EC |
1777 | err = get_res(dev, slave, rcqn, RES_CQ, &rcq); |
1778 | if (err) | |
1779 | goto ex_put_mtt; | |
1780 | ||
1781 | if (scqn != rcqn) { | |
1782 | err = get_res(dev, slave, scqn, RES_CQ, &scq); | |
1783 | if (err) | |
1784 | goto ex_put_rcq; | |
1785 | } else | |
1786 | scq = rcq; | |
1787 | ||
1788 | if (use_srq) { | |
1789 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); | |
1790 | if (err) | |
1791 | goto ex_put_scq; | |
1792 | } | |
1793 | ||
1794 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1795 | if (err) | |
1796 | goto ex_put_srq; | |
1797 | atomic_inc(&mtt->ref_count); | |
1798 | qp->mtt = mtt; | |
1799 | atomic_inc(&rcq->ref_count); | |
1800 | qp->rcq = rcq; | |
1801 | atomic_inc(&scq->ref_count); | |
1802 | qp->scq = scq; | |
1803 | ||
1804 | if (scqn != rcqn) | |
1805 | put_res(dev, slave, scqn, RES_CQ); | |
1806 | ||
1807 | if (use_srq) { | |
1808 | atomic_inc(&srq->ref_count); | |
1809 | put_res(dev, slave, srqn, RES_SRQ); | |
1810 | qp->srq = srq; | |
1811 | } | |
1812 | put_res(dev, slave, rcqn, RES_CQ); | |
2b8fb286 | 1813 | put_res(dev, slave, mtt_base, RES_MTT); |
c82e9aa0 EC |
1814 | res_end_move(dev, slave, RES_QP, qpn); |
1815 | ||
1816 | return 0; | |
1817 | ||
1818 | ex_put_srq: | |
1819 | if (use_srq) | |
1820 | put_res(dev, slave, srqn, RES_SRQ); | |
1821 | ex_put_scq: | |
1822 | if (scqn != rcqn) | |
1823 | put_res(dev, slave, scqn, RES_CQ); | |
1824 | ex_put_rcq: | |
1825 | put_res(dev, slave, rcqn, RES_CQ); | |
1826 | ex_put_mtt: | |
2b8fb286 | 1827 | put_res(dev, slave, mtt_base, RES_MTT); |
c82e9aa0 EC |
1828 | ex_abort: |
1829 | res_abort_move(dev, slave, RES_QP, qpn); | |
1830 | ||
1831 | return err; | |
1832 | } | |
1833 | ||
2b8fb286 | 1834 | static int eq_get_mtt_addr(struct mlx4_eq_context *eqc) |
c82e9aa0 EC |
1835 | { |
1836 | return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8; | |
1837 | } | |
1838 | ||
1839 | static int eq_get_mtt_size(struct mlx4_eq_context *eqc) | |
1840 | { | |
1841 | int log_eq_size = eqc->log_eq_size & 0x1f; | |
1842 | int page_shift = (eqc->log_page_size & 0x3f) + 12; | |
1843 | ||
1844 | if (log_eq_size + 5 < page_shift) | |
1845 | return 1; | |
1846 | ||
1847 | return 1 << (log_eq_size + 5 - page_shift); | |
1848 | } | |
1849 | ||
2b8fb286 | 1850 | static int cq_get_mtt_addr(struct mlx4_cq_context *cqc) |
c82e9aa0 EC |
1851 | { |
1852 | return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8; | |
1853 | } | |
1854 | ||
1855 | static int cq_get_mtt_size(struct mlx4_cq_context *cqc) | |
1856 | { | |
1857 | int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f; | |
1858 | int page_shift = (cqc->log_page_size & 0x3f) + 12; | |
1859 | ||
1860 | if (log_cq_size + 5 < page_shift) | |
1861 | return 1; | |
1862 | ||
1863 | return 1 << (log_cq_size + 5 - page_shift); | |
1864 | } | |
1865 | ||
1866 | int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave, | |
1867 | struct mlx4_vhcr *vhcr, | |
1868 | struct mlx4_cmd_mailbox *inbox, | |
1869 | struct mlx4_cmd_mailbox *outbox, | |
1870 | struct mlx4_cmd_info *cmd) | |
1871 | { | |
1872 | int err; | |
1873 | int eqn = vhcr->in_modifier; | |
1874 | int res_id = (slave << 8) | eqn; | |
1875 | struct mlx4_eq_context *eqc = inbox->buf; | |
2b8fb286 | 1876 | int mtt_base = eq_get_mtt_addr(eqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
1877 | int mtt_size = eq_get_mtt_size(eqc); |
1878 | struct res_eq *eq; | |
1879 | struct res_mtt *mtt; | |
1880 | ||
1881 | err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0); | |
1882 | if (err) | |
1883 | return err; | |
1884 | err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq); | |
1885 | if (err) | |
1886 | goto out_add; | |
1887 | ||
2b8fb286 | 1888 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
1889 | if (err) |
1890 | goto out_move; | |
1891 | ||
1892 | err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); | |
1893 | if (err) | |
1894 | goto out_put; | |
1895 | ||
1896 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1897 | if (err) | |
1898 | goto out_put; | |
1899 | ||
1900 | atomic_inc(&mtt->ref_count); | |
1901 | eq->mtt = mtt; | |
1902 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
1903 | res_end_move(dev, slave, RES_EQ, res_id); | |
1904 | return 0; | |
1905 | ||
1906 | out_put: | |
1907 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
1908 | out_move: | |
1909 | res_abort_move(dev, slave, RES_EQ, res_id); | |
1910 | out_add: | |
1911 | rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); | |
1912 | return err; | |
1913 | } | |
1914 | ||
1915 | static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start, | |
1916 | int len, struct res_mtt **res) | |
1917 | { | |
1918 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1919 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1920 | struct res_mtt *mtt; | |
1921 | int err = -EINVAL; | |
1922 | ||
1923 | spin_lock_irq(mlx4_tlock(dev)); | |
1924 | list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT], | |
1925 | com.list) { | |
1926 | if (!check_mtt_range(dev, slave, start, len, mtt)) { | |
1927 | *res = mtt; | |
1928 | mtt->com.from_state = mtt->com.state; | |
1929 | mtt->com.state = RES_MTT_BUSY; | |
1930 | err = 0; | |
1931 | break; | |
1932 | } | |
1933 | } | |
1934 | spin_unlock_irq(mlx4_tlock(dev)); | |
1935 | ||
1936 | return err; | |
1937 | } | |
1938 | ||
1939 | int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave, | |
1940 | struct mlx4_vhcr *vhcr, | |
1941 | struct mlx4_cmd_mailbox *inbox, | |
1942 | struct mlx4_cmd_mailbox *outbox, | |
1943 | struct mlx4_cmd_info *cmd) | |
1944 | { | |
1945 | struct mlx4_mtt mtt; | |
1946 | __be64 *page_list = inbox->buf; | |
1947 | u64 *pg_list = (u64 *)page_list; | |
1948 | int i; | |
1949 | struct res_mtt *rmtt = NULL; | |
1950 | int start = be64_to_cpu(page_list[0]); | |
1951 | int npages = vhcr->in_modifier; | |
1952 | int err; | |
1953 | ||
1954 | err = get_containing_mtt(dev, slave, start, npages, &rmtt); | |
1955 | if (err) | |
1956 | return err; | |
1957 | ||
1958 | /* Call the SW implementation of write_mtt: | |
1959 | * - Prepare a dummy mtt struct | |
1960 | * - Translate inbox contents to simple addresses in host endianess */ | |
2b8fb286 MA |
1961 | mtt.offset = 0; /* TBD this is broken but I don't handle it since |
1962 | we don't really use it */ | |
c82e9aa0 EC |
1963 | mtt.order = 0; |
1964 | mtt.page_shift = 0; | |
1965 | for (i = 0; i < npages; ++i) | |
1966 | pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL); | |
1967 | ||
1968 | err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages, | |
1969 | ((u64 *)page_list + 2)); | |
1970 | ||
1971 | if (rmtt) | |
1972 | put_res(dev, slave, rmtt->com.res_id, RES_MTT); | |
1973 | ||
1974 | return err; | |
1975 | } | |
1976 | ||
1977 | int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave, | |
1978 | struct mlx4_vhcr *vhcr, | |
1979 | struct mlx4_cmd_mailbox *inbox, | |
1980 | struct mlx4_cmd_mailbox *outbox, | |
1981 | struct mlx4_cmd_info *cmd) | |
1982 | { | |
1983 | int eqn = vhcr->in_modifier; | |
1984 | int res_id = eqn | (slave << 8); | |
1985 | struct res_eq *eq; | |
1986 | int err; | |
1987 | ||
1988 | err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq); | |
1989 | if (err) | |
1990 | return err; | |
1991 | ||
1992 | err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL); | |
1993 | if (err) | |
1994 | goto ex_abort; | |
1995 | ||
1996 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1997 | if (err) | |
1998 | goto ex_put; | |
1999 | ||
2000 | atomic_dec(&eq->mtt->ref_count); | |
2001 | put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); | |
2002 | res_end_move(dev, slave, RES_EQ, res_id); | |
2003 | rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); | |
2004 | ||
2005 | return 0; | |
2006 | ||
2007 | ex_put: | |
2008 | put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); | |
2009 | ex_abort: | |
2010 | res_abort_move(dev, slave, RES_EQ, res_id); | |
2011 | ||
2012 | return err; | |
2013 | } | |
2014 | ||
2015 | int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe) | |
2016 | { | |
2017 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2018 | struct mlx4_slave_event_eq_info *event_eq; | |
2019 | struct mlx4_cmd_mailbox *mailbox; | |
2020 | u32 in_modifier = 0; | |
2021 | int err; | |
2022 | int res_id; | |
2023 | struct res_eq *req; | |
2024 | ||
2025 | if (!priv->mfunc.master.slave_state) | |
2026 | return -EINVAL; | |
2027 | ||
803143fb | 2028 | event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type]; |
c82e9aa0 EC |
2029 | |
2030 | /* Create the event only if the slave is registered */ | |
803143fb | 2031 | if (event_eq->eqn < 0) |
c82e9aa0 EC |
2032 | return 0; |
2033 | ||
2034 | mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]); | |
2035 | res_id = (slave << 8) | event_eq->eqn; | |
2036 | err = get_res(dev, slave, res_id, RES_EQ, &req); | |
2037 | if (err) | |
2038 | goto unlock; | |
2039 | ||
2040 | if (req->com.from_state != RES_EQ_HW) { | |
2041 | err = -EINVAL; | |
2042 | goto put; | |
2043 | } | |
2044 | ||
2045 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
2046 | if (IS_ERR(mailbox)) { | |
2047 | err = PTR_ERR(mailbox); | |
2048 | goto put; | |
2049 | } | |
2050 | ||
2051 | if (eqe->type == MLX4_EVENT_TYPE_CMD) { | |
2052 | ++event_eq->token; | |
2053 | eqe->event.cmd.token = cpu_to_be16(event_eq->token); | |
2054 | } | |
2055 | ||
2056 | memcpy(mailbox->buf, (u8 *) eqe, 28); | |
2057 | ||
2058 | in_modifier = (slave & 0xff) | ((event_eq->eqn & 0xff) << 16); | |
2059 | ||
2060 | err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0, | |
2061 | MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B, | |
2062 | MLX4_CMD_NATIVE); | |
2063 | ||
2064 | put_res(dev, slave, res_id, RES_EQ); | |
2065 | mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); | |
2066 | mlx4_free_cmd_mailbox(dev, mailbox); | |
2067 | return err; | |
2068 | ||
2069 | put: | |
2070 | put_res(dev, slave, res_id, RES_EQ); | |
2071 | ||
2072 | unlock: | |
2073 | mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); | |
2074 | return err; | |
2075 | } | |
2076 | ||
2077 | int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave, | |
2078 | struct mlx4_vhcr *vhcr, | |
2079 | struct mlx4_cmd_mailbox *inbox, | |
2080 | struct mlx4_cmd_mailbox *outbox, | |
2081 | struct mlx4_cmd_info *cmd) | |
2082 | { | |
2083 | int eqn = vhcr->in_modifier; | |
2084 | int res_id = eqn | (slave << 8); | |
2085 | struct res_eq *eq; | |
2086 | int err; | |
2087 | ||
2088 | err = get_res(dev, slave, res_id, RES_EQ, &eq); | |
2089 | if (err) | |
2090 | return err; | |
2091 | ||
2092 | if (eq->com.from_state != RES_EQ_HW) { | |
2093 | err = -EINVAL; | |
2094 | goto ex_put; | |
2095 | } | |
2096 | ||
2097 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2098 | ||
2099 | ex_put: | |
2100 | put_res(dev, slave, res_id, RES_EQ); | |
2101 | return err; | |
2102 | } | |
2103 | ||
2104 | int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2105 | struct mlx4_vhcr *vhcr, | |
2106 | struct mlx4_cmd_mailbox *inbox, | |
2107 | struct mlx4_cmd_mailbox *outbox, | |
2108 | struct mlx4_cmd_info *cmd) | |
2109 | { | |
2110 | int err; | |
2111 | int cqn = vhcr->in_modifier; | |
2112 | struct mlx4_cq_context *cqc = inbox->buf; | |
2b8fb286 | 2113 | int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
2114 | struct res_cq *cq; |
2115 | struct res_mtt *mtt; | |
2116 | ||
2117 | err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq); | |
2118 | if (err) | |
2119 | return err; | |
2b8fb286 | 2120 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
2121 | if (err) |
2122 | goto out_move; | |
2123 | err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); | |
2124 | if (err) | |
2125 | goto out_put; | |
2126 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2127 | if (err) | |
2128 | goto out_put; | |
2129 | atomic_inc(&mtt->ref_count); | |
2130 | cq->mtt = mtt; | |
2131 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2132 | res_end_move(dev, slave, RES_CQ, cqn); | |
2133 | return 0; | |
2134 | ||
2135 | out_put: | |
2136 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2137 | out_move: | |
2138 | res_abort_move(dev, slave, RES_CQ, cqn); | |
2139 | return err; | |
2140 | } | |
2141 | ||
2142 | int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2143 | struct mlx4_vhcr *vhcr, | |
2144 | struct mlx4_cmd_mailbox *inbox, | |
2145 | struct mlx4_cmd_mailbox *outbox, | |
2146 | struct mlx4_cmd_info *cmd) | |
2147 | { | |
2148 | int err; | |
2149 | int cqn = vhcr->in_modifier; | |
2150 | struct res_cq *cq; | |
2151 | ||
2152 | err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq); | |
2153 | if (err) | |
2154 | return err; | |
2155 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2156 | if (err) | |
2157 | goto out_move; | |
2158 | atomic_dec(&cq->mtt->ref_count); | |
2159 | res_end_move(dev, slave, RES_CQ, cqn); | |
2160 | return 0; | |
2161 | ||
2162 | out_move: | |
2163 | res_abort_move(dev, slave, RES_CQ, cqn); | |
2164 | return err; | |
2165 | } | |
2166 | ||
2167 | int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2168 | struct mlx4_vhcr *vhcr, | |
2169 | struct mlx4_cmd_mailbox *inbox, | |
2170 | struct mlx4_cmd_mailbox *outbox, | |
2171 | struct mlx4_cmd_info *cmd) | |
2172 | { | |
2173 | int cqn = vhcr->in_modifier; | |
2174 | struct res_cq *cq; | |
2175 | int err; | |
2176 | ||
2177 | err = get_res(dev, slave, cqn, RES_CQ, &cq); | |
2178 | if (err) | |
2179 | return err; | |
2180 | ||
2181 | if (cq->com.from_state != RES_CQ_HW) | |
2182 | goto ex_put; | |
2183 | ||
2184 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2185 | ex_put: | |
2186 | put_res(dev, slave, cqn, RES_CQ); | |
2187 | ||
2188 | return err; | |
2189 | } | |
2190 | ||
2191 | static int handle_resize(struct mlx4_dev *dev, int slave, | |
2192 | struct mlx4_vhcr *vhcr, | |
2193 | struct mlx4_cmd_mailbox *inbox, | |
2194 | struct mlx4_cmd_mailbox *outbox, | |
2195 | struct mlx4_cmd_info *cmd, | |
2196 | struct res_cq *cq) | |
2197 | { | |
2198 | int err; | |
2199 | struct res_mtt *orig_mtt; | |
2200 | struct res_mtt *mtt; | |
2201 | struct mlx4_cq_context *cqc = inbox->buf; | |
2b8fb286 | 2202 | int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
2203 | |
2204 | err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt); | |
2205 | if (err) | |
2206 | return err; | |
2207 | ||
2208 | if (orig_mtt != cq->mtt) { | |
2209 | err = -EINVAL; | |
2210 | goto ex_put; | |
2211 | } | |
2212 | ||
2b8fb286 | 2213 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
2214 | if (err) |
2215 | goto ex_put; | |
2216 | ||
2217 | err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); | |
2218 | if (err) | |
2219 | goto ex_put1; | |
2220 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2221 | if (err) | |
2222 | goto ex_put1; | |
2223 | atomic_dec(&orig_mtt->ref_count); | |
2224 | put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); | |
2225 | atomic_inc(&mtt->ref_count); | |
2226 | cq->mtt = mtt; | |
2227 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2228 | return 0; | |
2229 | ||
2230 | ex_put1: | |
2231 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2232 | ex_put: | |
2233 | put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); | |
2234 | ||
2235 | return err; | |
2236 | ||
2237 | } | |
2238 | ||
2239 | int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2240 | struct mlx4_vhcr *vhcr, | |
2241 | struct mlx4_cmd_mailbox *inbox, | |
2242 | struct mlx4_cmd_mailbox *outbox, | |
2243 | struct mlx4_cmd_info *cmd) | |
2244 | { | |
2245 | int cqn = vhcr->in_modifier; | |
2246 | struct res_cq *cq; | |
2247 | int err; | |
2248 | ||
2249 | err = get_res(dev, slave, cqn, RES_CQ, &cq); | |
2250 | if (err) | |
2251 | return err; | |
2252 | ||
2253 | if (cq->com.from_state != RES_CQ_HW) | |
2254 | goto ex_put; | |
2255 | ||
2256 | if (vhcr->op_modifier == 0) { | |
2257 | err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq); | |
dcf353b1 | 2258 | goto ex_put; |
c82e9aa0 EC |
2259 | } |
2260 | ||
2261 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2262 | ex_put: | |
2263 | put_res(dev, slave, cqn, RES_CQ); | |
2264 | ||
2265 | return err; | |
2266 | } | |
2267 | ||
c82e9aa0 EC |
2268 | static int srq_get_mtt_size(struct mlx4_srq_context *srqc) |
2269 | { | |
2270 | int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf; | |
2271 | int log_rq_stride = srqc->logstride & 7; | |
2272 | int page_shift = (srqc->log_page_size & 0x3f) + 12; | |
2273 | ||
2274 | if (log_srq_size + log_rq_stride + 4 < page_shift) | |
2275 | return 1; | |
2276 | ||
2277 | return 1 << (log_srq_size + log_rq_stride + 4 - page_shift); | |
2278 | } | |
2279 | ||
2280 | int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2281 | struct mlx4_vhcr *vhcr, | |
2282 | struct mlx4_cmd_mailbox *inbox, | |
2283 | struct mlx4_cmd_mailbox *outbox, | |
2284 | struct mlx4_cmd_info *cmd) | |
2285 | { | |
2286 | int err; | |
2287 | int srqn = vhcr->in_modifier; | |
2288 | struct res_mtt *mtt; | |
2289 | struct res_srq *srq; | |
2290 | struct mlx4_srq_context *srqc = inbox->buf; | |
2b8fb286 | 2291 | int mtt_base = srq_get_mtt_addr(srqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
2292 | |
2293 | if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff)) | |
2294 | return -EINVAL; | |
2295 | ||
2296 | err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq); | |
2297 | if (err) | |
2298 | return err; | |
2b8fb286 | 2299 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
2300 | if (err) |
2301 | goto ex_abort; | |
2302 | err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc), | |
2303 | mtt); | |
2304 | if (err) | |
2305 | goto ex_put_mtt; | |
2306 | ||
c82e9aa0 EC |
2307 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
2308 | if (err) | |
2309 | goto ex_put_mtt; | |
2310 | ||
2311 | atomic_inc(&mtt->ref_count); | |
2312 | srq->mtt = mtt; | |
2313 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2314 | res_end_move(dev, slave, RES_SRQ, srqn); | |
2315 | return 0; | |
2316 | ||
2317 | ex_put_mtt: | |
2318 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2319 | ex_abort: | |
2320 | res_abort_move(dev, slave, RES_SRQ, srqn); | |
2321 | ||
2322 | return err; | |
2323 | } | |
2324 | ||
2325 | int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2326 | struct mlx4_vhcr *vhcr, | |
2327 | struct mlx4_cmd_mailbox *inbox, | |
2328 | struct mlx4_cmd_mailbox *outbox, | |
2329 | struct mlx4_cmd_info *cmd) | |
2330 | { | |
2331 | int err; | |
2332 | int srqn = vhcr->in_modifier; | |
2333 | struct res_srq *srq; | |
2334 | ||
2335 | err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq); | |
2336 | if (err) | |
2337 | return err; | |
2338 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2339 | if (err) | |
2340 | goto ex_abort; | |
2341 | atomic_dec(&srq->mtt->ref_count); | |
2342 | if (srq->cq) | |
2343 | atomic_dec(&srq->cq->ref_count); | |
2344 | res_end_move(dev, slave, RES_SRQ, srqn); | |
2345 | ||
2346 | return 0; | |
2347 | ||
2348 | ex_abort: | |
2349 | res_abort_move(dev, slave, RES_SRQ, srqn); | |
2350 | ||
2351 | return err; | |
2352 | } | |
2353 | ||
2354 | int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2355 | struct mlx4_vhcr *vhcr, | |
2356 | struct mlx4_cmd_mailbox *inbox, | |
2357 | struct mlx4_cmd_mailbox *outbox, | |
2358 | struct mlx4_cmd_info *cmd) | |
2359 | { | |
2360 | int err; | |
2361 | int srqn = vhcr->in_modifier; | |
2362 | struct res_srq *srq; | |
2363 | ||
2364 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); | |
2365 | if (err) | |
2366 | return err; | |
2367 | if (srq->com.from_state != RES_SRQ_HW) { | |
2368 | err = -EBUSY; | |
2369 | goto out; | |
2370 | } | |
2371 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2372 | out: | |
2373 | put_res(dev, slave, srqn, RES_SRQ); | |
2374 | return err; | |
2375 | } | |
2376 | ||
2377 | int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2378 | struct mlx4_vhcr *vhcr, | |
2379 | struct mlx4_cmd_mailbox *inbox, | |
2380 | struct mlx4_cmd_mailbox *outbox, | |
2381 | struct mlx4_cmd_info *cmd) | |
2382 | { | |
2383 | int err; | |
2384 | int srqn = vhcr->in_modifier; | |
2385 | struct res_srq *srq; | |
2386 | ||
2387 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); | |
2388 | if (err) | |
2389 | return err; | |
2390 | ||
2391 | if (srq->com.from_state != RES_SRQ_HW) { | |
2392 | err = -EBUSY; | |
2393 | goto out; | |
2394 | } | |
2395 | ||
2396 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2397 | out: | |
2398 | put_res(dev, slave, srqn, RES_SRQ); | |
2399 | return err; | |
2400 | } | |
2401 | ||
2402 | int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave, | |
2403 | struct mlx4_vhcr *vhcr, | |
2404 | struct mlx4_cmd_mailbox *inbox, | |
2405 | struct mlx4_cmd_mailbox *outbox, | |
2406 | struct mlx4_cmd_info *cmd) | |
2407 | { | |
2408 | int err; | |
2409 | int qpn = vhcr->in_modifier & 0x7fffff; | |
2410 | struct res_qp *qp; | |
2411 | ||
2412 | err = get_res(dev, slave, qpn, RES_QP, &qp); | |
2413 | if (err) | |
2414 | return err; | |
2415 | if (qp->com.from_state != RES_QP_HW) { | |
2416 | err = -EBUSY; | |
2417 | goto out; | |
2418 | } | |
2419 | ||
2420 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2421 | out: | |
2422 | put_res(dev, slave, qpn, RES_QP); | |
2423 | return err; | |
2424 | } | |
2425 | ||
2426 | int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave, | |
2427 | struct mlx4_vhcr *vhcr, | |
2428 | struct mlx4_cmd_mailbox *inbox, | |
2429 | struct mlx4_cmd_mailbox *outbox, | |
2430 | struct mlx4_cmd_info *cmd) | |
2431 | { | |
2432 | struct mlx4_qp_context *qpc = inbox->buf + 8; | |
2433 | ||
2434 | update_ud_gid(dev, qpc, (u8)slave); | |
2435 | ||
2436 | return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2437 | } | |
2438 | ||
2439 | int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave, | |
2440 | struct mlx4_vhcr *vhcr, | |
2441 | struct mlx4_cmd_mailbox *inbox, | |
2442 | struct mlx4_cmd_mailbox *outbox, | |
2443 | struct mlx4_cmd_info *cmd) | |
2444 | { | |
2445 | int err; | |
2446 | int qpn = vhcr->in_modifier & 0x7fffff; | |
2447 | struct res_qp *qp; | |
2448 | ||
2449 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0); | |
2450 | if (err) | |
2451 | return err; | |
2452 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2453 | if (err) | |
2454 | goto ex_abort; | |
2455 | ||
2456 | atomic_dec(&qp->mtt->ref_count); | |
2457 | atomic_dec(&qp->rcq->ref_count); | |
2458 | atomic_dec(&qp->scq->ref_count); | |
2459 | if (qp->srq) | |
2460 | atomic_dec(&qp->srq->ref_count); | |
2461 | res_end_move(dev, slave, RES_QP, qpn); | |
2462 | return 0; | |
2463 | ||
2464 | ex_abort: | |
2465 | res_abort_move(dev, slave, RES_QP, qpn); | |
2466 | ||
2467 | return err; | |
2468 | } | |
2469 | ||
2470 | static struct res_gid *find_gid(struct mlx4_dev *dev, int slave, | |
2471 | struct res_qp *rqp, u8 *gid) | |
2472 | { | |
2473 | struct res_gid *res; | |
2474 | ||
2475 | list_for_each_entry(res, &rqp->mcg_list, list) { | |
2476 | if (!memcmp(res->gid, gid, 16)) | |
2477 | return res; | |
2478 | } | |
2479 | return NULL; | |
2480 | } | |
2481 | ||
2482 | static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, | |
9f5b6c63 EE |
2483 | u8 *gid, enum mlx4_protocol prot, |
2484 | enum mlx4_steer_type steer) | |
c82e9aa0 EC |
2485 | { |
2486 | struct res_gid *res; | |
2487 | int err; | |
2488 | ||
2489 | res = kzalloc(sizeof *res, GFP_KERNEL); | |
2490 | if (!res) | |
2491 | return -ENOMEM; | |
2492 | ||
2493 | spin_lock_irq(&rqp->mcg_spl); | |
2494 | if (find_gid(dev, slave, rqp, gid)) { | |
2495 | kfree(res); | |
2496 | err = -EEXIST; | |
2497 | } else { | |
2498 | memcpy(res->gid, gid, 16); | |
2499 | res->prot = prot; | |
9f5b6c63 | 2500 | res->steer = steer; |
c82e9aa0 EC |
2501 | list_add_tail(&res->list, &rqp->mcg_list); |
2502 | err = 0; | |
2503 | } | |
2504 | spin_unlock_irq(&rqp->mcg_spl); | |
2505 | ||
2506 | return err; | |
2507 | } | |
2508 | ||
2509 | static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, | |
9f5b6c63 EE |
2510 | u8 *gid, enum mlx4_protocol prot, |
2511 | enum mlx4_steer_type steer) | |
c82e9aa0 EC |
2512 | { |
2513 | struct res_gid *res; | |
2514 | int err; | |
2515 | ||
2516 | spin_lock_irq(&rqp->mcg_spl); | |
2517 | res = find_gid(dev, slave, rqp, gid); | |
9f5b6c63 | 2518 | if (!res || res->prot != prot || res->steer != steer) |
c82e9aa0 EC |
2519 | err = -EINVAL; |
2520 | else { | |
2521 | list_del(&res->list); | |
2522 | kfree(res); | |
2523 | err = 0; | |
2524 | } | |
2525 | spin_unlock_irq(&rqp->mcg_spl); | |
2526 | ||
2527 | return err; | |
2528 | } | |
2529 | ||
2530 | int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave, | |
2531 | struct mlx4_vhcr *vhcr, | |
2532 | struct mlx4_cmd_mailbox *inbox, | |
2533 | struct mlx4_cmd_mailbox *outbox, | |
2534 | struct mlx4_cmd_info *cmd) | |
2535 | { | |
2536 | struct mlx4_qp qp; /* dummy for calling attach/detach */ | |
2537 | u8 *gid = inbox->buf; | |
2538 | enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7; | |
2539 | int err, err1; | |
2540 | int qpn; | |
2541 | struct res_qp *rqp; | |
2542 | int attach = vhcr->op_modifier; | |
2543 | int block_loopback = vhcr->in_modifier >> 31; | |
2544 | u8 steer_type_mask = 2; | |
75c6062c | 2545 | enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1; |
c82e9aa0 EC |
2546 | |
2547 | qpn = vhcr->in_modifier & 0xffffff; | |
2548 | err = get_res(dev, slave, qpn, RES_QP, &rqp); | |
2549 | if (err) | |
2550 | return err; | |
2551 | ||
2552 | qp.qpn = qpn; | |
2553 | if (attach) { | |
9f5b6c63 | 2554 | err = add_mcg_res(dev, slave, rqp, gid, prot, type); |
c82e9aa0 EC |
2555 | if (err) |
2556 | goto ex_put; | |
2557 | ||
2558 | err = mlx4_qp_attach_common(dev, &qp, gid, | |
2559 | block_loopback, prot, type); | |
2560 | if (err) | |
2561 | goto ex_rem; | |
2562 | } else { | |
9f5b6c63 | 2563 | err = rem_mcg_res(dev, slave, rqp, gid, prot, type); |
c82e9aa0 EC |
2564 | if (err) |
2565 | goto ex_put; | |
2566 | err = mlx4_qp_detach_common(dev, &qp, gid, prot, type); | |
2567 | } | |
2568 | ||
2569 | put_res(dev, slave, qpn, RES_QP); | |
2570 | return 0; | |
2571 | ||
2572 | ex_rem: | |
2573 | /* ignore error return below, already in error */ | |
9f5b6c63 | 2574 | err1 = rem_mcg_res(dev, slave, rqp, gid, prot, type); |
c82e9aa0 EC |
2575 | ex_put: |
2576 | put_res(dev, slave, qpn, RES_QP); | |
2577 | ||
2578 | return err; | |
2579 | } | |
2580 | ||
2581 | enum { | |
2582 | BUSY_MAX_RETRIES = 10 | |
2583 | }; | |
2584 | ||
2585 | int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave, | |
2586 | struct mlx4_vhcr *vhcr, | |
2587 | struct mlx4_cmd_mailbox *inbox, | |
2588 | struct mlx4_cmd_mailbox *outbox, | |
2589 | struct mlx4_cmd_info *cmd) | |
2590 | { | |
2591 | int err; | |
2592 | int index = vhcr->in_modifier & 0xffff; | |
2593 | ||
2594 | err = get_res(dev, slave, index, RES_COUNTER, NULL); | |
2595 | if (err) | |
2596 | return err; | |
2597 | ||
2598 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2599 | put_res(dev, slave, index, RES_COUNTER); | |
2600 | return err; | |
2601 | } | |
2602 | ||
2603 | static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp) | |
2604 | { | |
2605 | struct res_gid *rgid; | |
2606 | struct res_gid *tmp; | |
2607 | int err; | |
2608 | struct mlx4_qp qp; /* dummy for calling attach/detach */ | |
2609 | ||
2610 | list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) { | |
2611 | qp.qpn = rqp->local_qpn; | |
2612 | err = mlx4_qp_detach_common(dev, &qp, rgid->gid, rgid->prot, | |
9f5b6c63 | 2613 | rgid->steer); |
c82e9aa0 EC |
2614 | list_del(&rgid->list); |
2615 | kfree(rgid); | |
2616 | } | |
2617 | } | |
2618 | ||
2619 | static int _move_all_busy(struct mlx4_dev *dev, int slave, | |
2620 | enum mlx4_resource type, int print) | |
2621 | { | |
2622 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2623 | struct mlx4_resource_tracker *tracker = | |
2624 | &priv->mfunc.master.res_tracker; | |
2625 | struct list_head *rlist = &tracker->slave_list[slave].res_list[type]; | |
2626 | struct res_common *r; | |
2627 | struct res_common *tmp; | |
2628 | int busy; | |
2629 | ||
2630 | busy = 0; | |
2631 | spin_lock_irq(mlx4_tlock(dev)); | |
2632 | list_for_each_entry_safe(r, tmp, rlist, list) { | |
2633 | if (r->owner == slave) { | |
2634 | if (!r->removing) { | |
2635 | if (r->state == RES_ANY_BUSY) { | |
2636 | if (print) | |
2637 | mlx4_dbg(dev, | |
2638 | "%s id 0x%x is busy\n", | |
2639 | ResourceType(type), | |
2640 | r->res_id); | |
2641 | ++busy; | |
2642 | } else { | |
2643 | r->from_state = r->state; | |
2644 | r->state = RES_ANY_BUSY; | |
2645 | r->removing = 1; | |
2646 | } | |
2647 | } | |
2648 | } | |
2649 | } | |
2650 | spin_unlock_irq(mlx4_tlock(dev)); | |
2651 | ||
2652 | return busy; | |
2653 | } | |
2654 | ||
2655 | static int move_all_busy(struct mlx4_dev *dev, int slave, | |
2656 | enum mlx4_resource type) | |
2657 | { | |
2658 | unsigned long begin; | |
2659 | int busy; | |
2660 | ||
2661 | begin = jiffies; | |
2662 | do { | |
2663 | busy = _move_all_busy(dev, slave, type, 0); | |
2664 | if (time_after(jiffies, begin + 5 * HZ)) | |
2665 | break; | |
2666 | if (busy) | |
2667 | cond_resched(); | |
2668 | } while (busy); | |
2669 | ||
2670 | if (busy) | |
2671 | busy = _move_all_busy(dev, slave, type, 1); | |
2672 | ||
2673 | return busy; | |
2674 | } | |
2675 | static void rem_slave_qps(struct mlx4_dev *dev, int slave) | |
2676 | { | |
2677 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2678 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2679 | struct list_head *qp_list = | |
2680 | &tracker->slave_list[slave].res_list[RES_QP]; | |
2681 | struct res_qp *qp; | |
2682 | struct res_qp *tmp; | |
2683 | int state; | |
2684 | u64 in_param; | |
2685 | int qpn; | |
2686 | int err; | |
2687 | ||
2688 | err = move_all_busy(dev, slave, RES_QP); | |
2689 | if (err) | |
2690 | mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy" | |
2691 | "for slave %d\n", slave); | |
2692 | ||
2693 | spin_lock_irq(mlx4_tlock(dev)); | |
2694 | list_for_each_entry_safe(qp, tmp, qp_list, com.list) { | |
2695 | spin_unlock_irq(mlx4_tlock(dev)); | |
2696 | if (qp->com.owner == slave) { | |
2697 | qpn = qp->com.res_id; | |
2698 | detach_qp(dev, slave, qp); | |
2699 | state = qp->com.from_state; | |
2700 | while (state != 0) { | |
2701 | switch (state) { | |
2702 | case RES_QP_RESERVED: | |
2703 | spin_lock_irq(mlx4_tlock(dev)); | |
2704 | radix_tree_delete(&tracker->res_tree[RES_QP], | |
2705 | qp->com.res_id); | |
2706 | list_del(&qp->com.list); | |
2707 | spin_unlock_irq(mlx4_tlock(dev)); | |
2708 | kfree(qp); | |
2709 | state = 0; | |
2710 | break; | |
2711 | case RES_QP_MAPPED: | |
2712 | if (!valid_reserved(dev, slave, qpn)) | |
2713 | __mlx4_qp_free_icm(dev, qpn); | |
2714 | state = RES_QP_RESERVED; | |
2715 | break; | |
2716 | case RES_QP_HW: | |
2717 | in_param = slave; | |
2718 | err = mlx4_cmd(dev, in_param, | |
2719 | qp->local_qpn, 2, | |
2720 | MLX4_CMD_2RST_QP, | |
2721 | MLX4_CMD_TIME_CLASS_A, | |
2722 | MLX4_CMD_NATIVE); | |
2723 | if (err) | |
2724 | mlx4_dbg(dev, "rem_slave_qps: failed" | |
2725 | " to move slave %d qpn %d to" | |
2726 | " reset\n", slave, | |
2727 | qp->local_qpn); | |
2728 | atomic_dec(&qp->rcq->ref_count); | |
2729 | atomic_dec(&qp->scq->ref_count); | |
2730 | atomic_dec(&qp->mtt->ref_count); | |
2731 | if (qp->srq) | |
2732 | atomic_dec(&qp->srq->ref_count); | |
2733 | state = RES_QP_MAPPED; | |
2734 | break; | |
2735 | default: | |
2736 | state = 0; | |
2737 | } | |
2738 | } | |
2739 | } | |
2740 | spin_lock_irq(mlx4_tlock(dev)); | |
2741 | } | |
2742 | spin_unlock_irq(mlx4_tlock(dev)); | |
2743 | } | |
2744 | ||
2745 | static void rem_slave_srqs(struct mlx4_dev *dev, int slave) | |
2746 | { | |
2747 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2748 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2749 | struct list_head *srq_list = | |
2750 | &tracker->slave_list[slave].res_list[RES_SRQ]; | |
2751 | struct res_srq *srq; | |
2752 | struct res_srq *tmp; | |
2753 | int state; | |
2754 | u64 in_param; | |
2755 | LIST_HEAD(tlist); | |
2756 | int srqn; | |
2757 | int err; | |
2758 | ||
2759 | err = move_all_busy(dev, slave, RES_SRQ); | |
2760 | if (err) | |
2761 | mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs to " | |
2762 | "busy for slave %d\n", slave); | |
2763 | ||
2764 | spin_lock_irq(mlx4_tlock(dev)); | |
2765 | list_for_each_entry_safe(srq, tmp, srq_list, com.list) { | |
2766 | spin_unlock_irq(mlx4_tlock(dev)); | |
2767 | if (srq->com.owner == slave) { | |
2768 | srqn = srq->com.res_id; | |
2769 | state = srq->com.from_state; | |
2770 | while (state != 0) { | |
2771 | switch (state) { | |
2772 | case RES_SRQ_ALLOCATED: | |
2773 | __mlx4_srq_free_icm(dev, srqn); | |
2774 | spin_lock_irq(mlx4_tlock(dev)); | |
2775 | radix_tree_delete(&tracker->res_tree[RES_SRQ], | |
2776 | srqn); | |
2777 | list_del(&srq->com.list); | |
2778 | spin_unlock_irq(mlx4_tlock(dev)); | |
2779 | kfree(srq); | |
2780 | state = 0; | |
2781 | break; | |
2782 | ||
2783 | case RES_SRQ_HW: | |
2784 | in_param = slave; | |
2785 | err = mlx4_cmd(dev, in_param, srqn, 1, | |
2786 | MLX4_CMD_HW2SW_SRQ, | |
2787 | MLX4_CMD_TIME_CLASS_A, | |
2788 | MLX4_CMD_NATIVE); | |
2789 | if (err) | |
2790 | mlx4_dbg(dev, "rem_slave_srqs: failed" | |
2791 | " to move slave %d srq %d to" | |
2792 | " SW ownership\n", | |
2793 | slave, srqn); | |
2794 | ||
2795 | atomic_dec(&srq->mtt->ref_count); | |
2796 | if (srq->cq) | |
2797 | atomic_dec(&srq->cq->ref_count); | |
2798 | state = RES_SRQ_ALLOCATED; | |
2799 | break; | |
2800 | ||
2801 | default: | |
2802 | state = 0; | |
2803 | } | |
2804 | } | |
2805 | } | |
2806 | spin_lock_irq(mlx4_tlock(dev)); | |
2807 | } | |
2808 | spin_unlock_irq(mlx4_tlock(dev)); | |
2809 | } | |
2810 | ||
2811 | static void rem_slave_cqs(struct mlx4_dev *dev, int slave) | |
2812 | { | |
2813 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2814 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2815 | struct list_head *cq_list = | |
2816 | &tracker->slave_list[slave].res_list[RES_CQ]; | |
2817 | struct res_cq *cq; | |
2818 | struct res_cq *tmp; | |
2819 | int state; | |
2820 | u64 in_param; | |
2821 | LIST_HEAD(tlist); | |
2822 | int cqn; | |
2823 | int err; | |
2824 | ||
2825 | err = move_all_busy(dev, slave, RES_CQ); | |
2826 | if (err) | |
2827 | mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs to " | |
2828 | "busy for slave %d\n", slave); | |
2829 | ||
2830 | spin_lock_irq(mlx4_tlock(dev)); | |
2831 | list_for_each_entry_safe(cq, tmp, cq_list, com.list) { | |
2832 | spin_unlock_irq(mlx4_tlock(dev)); | |
2833 | if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) { | |
2834 | cqn = cq->com.res_id; | |
2835 | state = cq->com.from_state; | |
2836 | while (state != 0) { | |
2837 | switch (state) { | |
2838 | case RES_CQ_ALLOCATED: | |
2839 | __mlx4_cq_free_icm(dev, cqn); | |
2840 | spin_lock_irq(mlx4_tlock(dev)); | |
2841 | radix_tree_delete(&tracker->res_tree[RES_CQ], | |
2842 | cqn); | |
2843 | list_del(&cq->com.list); | |
2844 | spin_unlock_irq(mlx4_tlock(dev)); | |
2845 | kfree(cq); | |
2846 | state = 0; | |
2847 | break; | |
2848 | ||
2849 | case RES_CQ_HW: | |
2850 | in_param = slave; | |
2851 | err = mlx4_cmd(dev, in_param, cqn, 1, | |
2852 | MLX4_CMD_HW2SW_CQ, | |
2853 | MLX4_CMD_TIME_CLASS_A, | |
2854 | MLX4_CMD_NATIVE); | |
2855 | if (err) | |
2856 | mlx4_dbg(dev, "rem_slave_cqs: failed" | |
2857 | " to move slave %d cq %d to" | |
2858 | " SW ownership\n", | |
2859 | slave, cqn); | |
2860 | atomic_dec(&cq->mtt->ref_count); | |
2861 | state = RES_CQ_ALLOCATED; | |
2862 | break; | |
2863 | ||
2864 | default: | |
2865 | state = 0; | |
2866 | } | |
2867 | } | |
2868 | } | |
2869 | spin_lock_irq(mlx4_tlock(dev)); | |
2870 | } | |
2871 | spin_unlock_irq(mlx4_tlock(dev)); | |
2872 | } | |
2873 | ||
2874 | static void rem_slave_mrs(struct mlx4_dev *dev, int slave) | |
2875 | { | |
2876 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2877 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2878 | struct list_head *mpt_list = | |
2879 | &tracker->slave_list[slave].res_list[RES_MPT]; | |
2880 | struct res_mpt *mpt; | |
2881 | struct res_mpt *tmp; | |
2882 | int state; | |
2883 | u64 in_param; | |
2884 | LIST_HEAD(tlist); | |
2885 | int mptn; | |
2886 | int err; | |
2887 | ||
2888 | err = move_all_busy(dev, slave, RES_MPT); | |
2889 | if (err) | |
2890 | mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts to " | |
2891 | "busy for slave %d\n", slave); | |
2892 | ||
2893 | spin_lock_irq(mlx4_tlock(dev)); | |
2894 | list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) { | |
2895 | spin_unlock_irq(mlx4_tlock(dev)); | |
2896 | if (mpt->com.owner == slave) { | |
2897 | mptn = mpt->com.res_id; | |
2898 | state = mpt->com.from_state; | |
2899 | while (state != 0) { | |
2900 | switch (state) { | |
2901 | case RES_MPT_RESERVED: | |
2902 | __mlx4_mr_release(dev, mpt->key); | |
2903 | spin_lock_irq(mlx4_tlock(dev)); | |
2904 | radix_tree_delete(&tracker->res_tree[RES_MPT], | |
2905 | mptn); | |
2906 | list_del(&mpt->com.list); | |
2907 | spin_unlock_irq(mlx4_tlock(dev)); | |
2908 | kfree(mpt); | |
2909 | state = 0; | |
2910 | break; | |
2911 | ||
2912 | case RES_MPT_MAPPED: | |
2913 | __mlx4_mr_free_icm(dev, mpt->key); | |
2914 | state = RES_MPT_RESERVED; | |
2915 | break; | |
2916 | ||
2917 | case RES_MPT_HW: | |
2918 | in_param = slave; | |
2919 | err = mlx4_cmd(dev, in_param, mptn, 0, | |
2920 | MLX4_CMD_HW2SW_MPT, | |
2921 | MLX4_CMD_TIME_CLASS_A, | |
2922 | MLX4_CMD_NATIVE); | |
2923 | if (err) | |
2924 | mlx4_dbg(dev, "rem_slave_mrs: failed" | |
2925 | " to move slave %d mpt %d to" | |
2926 | " SW ownership\n", | |
2927 | slave, mptn); | |
2928 | if (mpt->mtt) | |
2929 | atomic_dec(&mpt->mtt->ref_count); | |
2930 | state = RES_MPT_MAPPED; | |
2931 | break; | |
2932 | default: | |
2933 | state = 0; | |
2934 | } | |
2935 | } | |
2936 | } | |
2937 | spin_lock_irq(mlx4_tlock(dev)); | |
2938 | } | |
2939 | spin_unlock_irq(mlx4_tlock(dev)); | |
2940 | } | |
2941 | ||
2942 | static void rem_slave_mtts(struct mlx4_dev *dev, int slave) | |
2943 | { | |
2944 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2945 | struct mlx4_resource_tracker *tracker = | |
2946 | &priv->mfunc.master.res_tracker; | |
2947 | struct list_head *mtt_list = | |
2948 | &tracker->slave_list[slave].res_list[RES_MTT]; | |
2949 | struct res_mtt *mtt; | |
2950 | struct res_mtt *tmp; | |
2951 | int state; | |
2952 | LIST_HEAD(tlist); | |
2953 | int base; | |
2954 | int err; | |
2955 | ||
2956 | err = move_all_busy(dev, slave, RES_MTT); | |
2957 | if (err) | |
2958 | mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts to " | |
2959 | "busy for slave %d\n", slave); | |
2960 | ||
2961 | spin_lock_irq(mlx4_tlock(dev)); | |
2962 | list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) { | |
2963 | spin_unlock_irq(mlx4_tlock(dev)); | |
2964 | if (mtt->com.owner == slave) { | |
2965 | base = mtt->com.res_id; | |
2966 | state = mtt->com.from_state; | |
2967 | while (state != 0) { | |
2968 | switch (state) { | |
2969 | case RES_MTT_ALLOCATED: | |
2970 | __mlx4_free_mtt_range(dev, base, | |
2971 | mtt->order); | |
2972 | spin_lock_irq(mlx4_tlock(dev)); | |
2973 | radix_tree_delete(&tracker->res_tree[RES_MTT], | |
2974 | base); | |
2975 | list_del(&mtt->com.list); | |
2976 | spin_unlock_irq(mlx4_tlock(dev)); | |
2977 | kfree(mtt); | |
2978 | state = 0; | |
2979 | break; | |
2980 | ||
2981 | default: | |
2982 | state = 0; | |
2983 | } | |
2984 | } | |
2985 | } | |
2986 | spin_lock_irq(mlx4_tlock(dev)); | |
2987 | } | |
2988 | spin_unlock_irq(mlx4_tlock(dev)); | |
2989 | } | |
2990 | ||
2991 | static void rem_slave_eqs(struct mlx4_dev *dev, int slave) | |
2992 | { | |
2993 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2994 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2995 | struct list_head *eq_list = | |
2996 | &tracker->slave_list[slave].res_list[RES_EQ]; | |
2997 | struct res_eq *eq; | |
2998 | struct res_eq *tmp; | |
2999 | int err; | |
3000 | int state; | |
3001 | LIST_HEAD(tlist); | |
3002 | int eqn; | |
3003 | struct mlx4_cmd_mailbox *mailbox; | |
3004 | ||
3005 | err = move_all_busy(dev, slave, RES_EQ); | |
3006 | if (err) | |
3007 | mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs to " | |
3008 | "busy for slave %d\n", slave); | |
3009 | ||
3010 | spin_lock_irq(mlx4_tlock(dev)); | |
3011 | list_for_each_entry_safe(eq, tmp, eq_list, com.list) { | |
3012 | spin_unlock_irq(mlx4_tlock(dev)); | |
3013 | if (eq->com.owner == slave) { | |
3014 | eqn = eq->com.res_id; | |
3015 | state = eq->com.from_state; | |
3016 | while (state != 0) { | |
3017 | switch (state) { | |
3018 | case RES_EQ_RESERVED: | |
3019 | spin_lock_irq(mlx4_tlock(dev)); | |
3020 | radix_tree_delete(&tracker->res_tree[RES_EQ], | |
3021 | eqn); | |
3022 | list_del(&eq->com.list); | |
3023 | spin_unlock_irq(mlx4_tlock(dev)); | |
3024 | kfree(eq); | |
3025 | state = 0; | |
3026 | break; | |
3027 | ||
3028 | case RES_EQ_HW: | |
3029 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
3030 | if (IS_ERR(mailbox)) { | |
3031 | cond_resched(); | |
3032 | continue; | |
3033 | } | |
3034 | err = mlx4_cmd_box(dev, slave, 0, | |
3035 | eqn & 0xff, 0, | |
3036 | MLX4_CMD_HW2SW_EQ, | |
3037 | MLX4_CMD_TIME_CLASS_A, | |
3038 | MLX4_CMD_NATIVE); | |
3039 | mlx4_dbg(dev, "rem_slave_eqs: failed" | |
3040 | " to move slave %d eqs %d to" | |
3041 | " SW ownership\n", slave, eqn); | |
3042 | mlx4_free_cmd_mailbox(dev, mailbox); | |
3043 | if (!err) { | |
3044 | atomic_dec(&eq->mtt->ref_count); | |
3045 | state = RES_EQ_RESERVED; | |
3046 | } | |
3047 | break; | |
3048 | ||
3049 | default: | |
3050 | state = 0; | |
3051 | } | |
3052 | } | |
3053 | } | |
3054 | spin_lock_irq(mlx4_tlock(dev)); | |
3055 | } | |
3056 | spin_unlock_irq(mlx4_tlock(dev)); | |
3057 | } | |
3058 | ||
3059 | void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) | |
3060 | { | |
3061 | struct mlx4_priv *priv = mlx4_priv(dev); | |
3062 | ||
3063 | mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); | |
3064 | /*VLAN*/ | |
3065 | rem_slave_macs(dev, slave); | |
3066 | rem_slave_qps(dev, slave); | |
3067 | rem_slave_srqs(dev, slave); | |
3068 | rem_slave_cqs(dev, slave); | |
3069 | rem_slave_mrs(dev, slave); | |
3070 | rem_slave_eqs(dev, slave); | |
3071 | rem_slave_mtts(dev, slave); | |
3072 | mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); | |
3073 | } |