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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; | |
76 | }; | |
77 | ||
78 | enum res_qp_states { | |
79 | RES_QP_BUSY = RES_ANY_BUSY, | |
80 | ||
81 | /* QP number was allocated */ | |
82 | RES_QP_RESERVED, | |
83 | ||
84 | /* ICM memory for QP context was mapped */ | |
85 | RES_QP_MAPPED, | |
86 | ||
87 | /* QP is in hw ownership */ | |
88 | RES_QP_HW | |
89 | }; | |
90 | ||
91 | static inline const char *qp_states_str(enum res_qp_states state) | |
92 | { | |
93 | switch (state) { | |
94 | case RES_QP_BUSY: return "RES_QP_BUSY"; | |
95 | case RES_QP_RESERVED: return "RES_QP_RESERVED"; | |
96 | case RES_QP_MAPPED: return "RES_QP_MAPPED"; | |
97 | case RES_QP_HW: return "RES_QP_HW"; | |
98 | default: return "Unknown"; | |
99 | } | |
100 | } | |
101 | ||
102 | struct res_qp { | |
103 | struct res_common com; | |
104 | struct res_mtt *mtt; | |
105 | struct res_cq *rcq; | |
106 | struct res_cq *scq; | |
107 | struct res_srq *srq; | |
108 | struct list_head mcg_list; | |
109 | spinlock_t mcg_spl; | |
110 | int local_qpn; | |
111 | }; | |
112 | ||
113 | enum res_mtt_states { | |
114 | RES_MTT_BUSY = RES_ANY_BUSY, | |
115 | RES_MTT_ALLOCATED, | |
116 | }; | |
117 | ||
118 | static inline const char *mtt_states_str(enum res_mtt_states state) | |
119 | { | |
120 | switch (state) { | |
121 | case RES_MTT_BUSY: return "RES_MTT_BUSY"; | |
122 | case RES_MTT_ALLOCATED: return "RES_MTT_ALLOCATED"; | |
123 | default: return "Unknown"; | |
124 | } | |
125 | } | |
126 | ||
127 | struct res_mtt { | |
128 | struct res_common com; | |
129 | int order; | |
130 | atomic_t ref_count; | |
131 | }; | |
132 | ||
133 | enum res_mpt_states { | |
134 | RES_MPT_BUSY = RES_ANY_BUSY, | |
135 | RES_MPT_RESERVED, | |
136 | RES_MPT_MAPPED, | |
137 | RES_MPT_HW, | |
138 | }; | |
139 | ||
140 | struct res_mpt { | |
141 | struct res_common com; | |
142 | struct res_mtt *mtt; | |
143 | int key; | |
144 | }; | |
145 | ||
146 | enum res_eq_states { | |
147 | RES_EQ_BUSY = RES_ANY_BUSY, | |
148 | RES_EQ_RESERVED, | |
149 | RES_EQ_HW, | |
150 | }; | |
151 | ||
152 | struct res_eq { | |
153 | struct res_common com; | |
154 | struct res_mtt *mtt; | |
155 | }; | |
156 | ||
157 | enum res_cq_states { | |
158 | RES_CQ_BUSY = RES_ANY_BUSY, | |
159 | RES_CQ_ALLOCATED, | |
160 | RES_CQ_HW, | |
161 | }; | |
162 | ||
163 | struct res_cq { | |
164 | struct res_common com; | |
165 | struct res_mtt *mtt; | |
166 | atomic_t ref_count; | |
167 | }; | |
168 | ||
169 | enum res_srq_states { | |
170 | RES_SRQ_BUSY = RES_ANY_BUSY, | |
171 | RES_SRQ_ALLOCATED, | |
172 | RES_SRQ_HW, | |
173 | }; | |
174 | ||
175 | static inline const char *srq_states_str(enum res_srq_states state) | |
176 | { | |
177 | switch (state) { | |
178 | case RES_SRQ_BUSY: return "RES_SRQ_BUSY"; | |
179 | case RES_SRQ_ALLOCATED: return "RES_SRQ_ALLOCATED"; | |
180 | case RES_SRQ_HW: return "RES_SRQ_HW"; | |
181 | default: return "Unknown"; | |
182 | } | |
183 | } | |
184 | ||
185 | struct res_srq { | |
186 | struct res_common com; | |
187 | struct res_mtt *mtt; | |
188 | struct res_cq *cq; | |
189 | atomic_t ref_count; | |
190 | }; | |
191 | ||
192 | enum res_counter_states { | |
193 | RES_COUNTER_BUSY = RES_ANY_BUSY, | |
194 | RES_COUNTER_ALLOCATED, | |
195 | }; | |
196 | ||
197 | static inline const char *counter_states_str(enum res_counter_states state) | |
198 | { | |
199 | switch (state) { | |
200 | case RES_COUNTER_BUSY: return "RES_COUNTER_BUSY"; | |
201 | case RES_COUNTER_ALLOCATED: return "RES_COUNTER_ALLOCATED"; | |
202 | default: return "Unknown"; | |
203 | } | |
204 | } | |
205 | ||
206 | struct res_counter { | |
207 | struct res_common com; | |
208 | int port; | |
209 | }; | |
210 | ||
211 | /* For Debug uses */ | |
212 | static const char *ResourceType(enum mlx4_resource rt) | |
213 | { | |
214 | switch (rt) { | |
215 | case RES_QP: return "RES_QP"; | |
216 | case RES_CQ: return "RES_CQ"; | |
217 | case RES_SRQ: return "RES_SRQ"; | |
218 | case RES_MPT: return "RES_MPT"; | |
219 | case RES_MTT: return "RES_MTT"; | |
220 | case RES_MAC: return "RES_MAC"; | |
221 | case RES_EQ: return "RES_EQ"; | |
222 | case RES_COUNTER: return "RES_COUNTER"; | |
223 | default: return "Unknown resource type !!!"; | |
224 | }; | |
225 | } | |
226 | ||
c82e9aa0 EC |
227 | int mlx4_init_resource_tracker(struct mlx4_dev *dev) |
228 | { | |
229 | struct mlx4_priv *priv = mlx4_priv(dev); | |
230 | int i; | |
231 | int t; | |
232 | ||
233 | priv->mfunc.master.res_tracker.slave_list = | |
234 | kzalloc(dev->num_slaves * sizeof(struct slave_list), | |
235 | GFP_KERNEL); | |
236 | if (!priv->mfunc.master.res_tracker.slave_list) | |
237 | return -ENOMEM; | |
238 | ||
239 | for (i = 0 ; i < dev->num_slaves; i++) { | |
240 | for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t) | |
241 | INIT_LIST_HEAD(&priv->mfunc.master.res_tracker. | |
242 | slave_list[i].res_list[t]); | |
243 | mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex); | |
244 | } | |
245 | ||
246 | mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n", | |
247 | dev->num_slaves); | |
248 | for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) | |
249 | INIT_RADIX_TREE(&priv->mfunc.master.res_tracker.res_tree[i], | |
250 | GFP_ATOMIC|__GFP_NOWARN); | |
251 | ||
252 | spin_lock_init(&priv->mfunc.master.res_tracker.lock); | |
253 | return 0 ; | |
254 | } | |
255 | ||
256 | void mlx4_free_resource_tracker(struct mlx4_dev *dev) | |
257 | { | |
258 | struct mlx4_priv *priv = mlx4_priv(dev); | |
259 | int i; | |
260 | ||
261 | if (priv->mfunc.master.res_tracker.slave_list) { | |
262 | for (i = 0 ; i < dev->num_slaves; i++) | |
263 | mlx4_delete_all_resources_for_slave(dev, i); | |
264 | ||
265 | kfree(priv->mfunc.master.res_tracker.slave_list); | |
266 | } | |
267 | } | |
268 | ||
269 | static void update_ud_gid(struct mlx4_dev *dev, | |
270 | struct mlx4_qp_context *qp_ctx, u8 slave) | |
271 | { | |
272 | u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; | |
273 | ||
274 | if (MLX4_QP_ST_UD == ts) | |
275 | qp_ctx->pri_path.mgid_index = 0x80 | slave; | |
276 | ||
277 | mlx4_dbg(dev, "slave %d, new gid index: 0x%x ", | |
278 | slave, qp_ctx->pri_path.mgid_index); | |
279 | } | |
280 | ||
281 | static int mpt_mask(struct mlx4_dev *dev) | |
282 | { | |
283 | return dev->caps.num_mpts - 1; | |
284 | } | |
285 | ||
286 | static void *find_res(struct mlx4_dev *dev, int res_id, | |
287 | enum mlx4_resource type) | |
288 | { | |
289 | struct mlx4_priv *priv = mlx4_priv(dev); | |
290 | ||
291 | return radix_tree_lookup(&priv->mfunc.master.res_tracker.res_tree[type], | |
292 | res_id); | |
293 | } | |
294 | ||
295 | static int get_res(struct mlx4_dev *dev, int slave, int res_id, | |
296 | enum mlx4_resource type, | |
297 | void *res) | |
298 | { | |
299 | struct res_common *r; | |
300 | int err = 0; | |
301 | ||
302 | spin_lock_irq(mlx4_tlock(dev)); | |
303 | r = find_res(dev, res_id, type); | |
304 | if (!r) { | |
305 | err = -ENONET; | |
306 | goto exit; | |
307 | } | |
308 | ||
309 | if (r->state == RES_ANY_BUSY) { | |
310 | err = -EBUSY; | |
311 | goto exit; | |
312 | } | |
313 | ||
314 | if (r->owner != slave) { | |
315 | err = -EPERM; | |
316 | goto exit; | |
317 | } | |
318 | ||
319 | r->from_state = r->state; | |
320 | r->state = RES_ANY_BUSY; | |
321 | mlx4_dbg(dev, "res %s id 0x%x to busy\n", | |
322 | ResourceType(type), r->res_id); | |
323 | ||
324 | if (res) | |
325 | *((struct res_common **)res) = r; | |
326 | ||
327 | exit: | |
328 | spin_unlock_irq(mlx4_tlock(dev)); | |
329 | return err; | |
330 | } | |
331 | ||
332 | int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev, | |
333 | enum mlx4_resource type, | |
334 | int res_id, int *slave) | |
335 | { | |
336 | ||
337 | struct res_common *r; | |
338 | int err = -ENOENT; | |
339 | int id = res_id; | |
340 | ||
341 | if (type == RES_QP) | |
342 | id &= 0x7fffff; | |
996b0541 | 343 | spin_lock(mlx4_tlock(dev)); |
c82e9aa0 EC |
344 | |
345 | r = find_res(dev, id, type); | |
346 | if (r) { | |
347 | *slave = r->owner; | |
348 | err = 0; | |
349 | } | |
996b0541 | 350 | spin_unlock(mlx4_tlock(dev)); |
c82e9aa0 EC |
351 | |
352 | return err; | |
353 | } | |
354 | ||
355 | static void put_res(struct mlx4_dev *dev, int slave, int res_id, | |
356 | enum mlx4_resource type) | |
357 | { | |
358 | struct res_common *r; | |
359 | ||
360 | spin_lock_irq(mlx4_tlock(dev)); | |
361 | r = find_res(dev, res_id, type); | |
362 | if (r) | |
363 | r->state = r->from_state; | |
364 | spin_unlock_irq(mlx4_tlock(dev)); | |
365 | } | |
366 | ||
367 | static struct res_common *alloc_qp_tr(int id) | |
368 | { | |
369 | struct res_qp *ret; | |
370 | ||
371 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
372 | if (!ret) | |
373 | return NULL; | |
374 | ||
375 | ret->com.res_id = id; | |
376 | ret->com.state = RES_QP_RESERVED; | |
377 | INIT_LIST_HEAD(&ret->mcg_list); | |
378 | spin_lock_init(&ret->mcg_spl); | |
379 | ||
380 | return &ret->com; | |
381 | } | |
382 | ||
383 | static struct res_common *alloc_mtt_tr(int id, int order) | |
384 | { | |
385 | struct res_mtt *ret; | |
386 | ||
387 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
388 | if (!ret) | |
389 | return NULL; | |
390 | ||
391 | ret->com.res_id = id; | |
392 | ret->order = order; | |
393 | ret->com.state = RES_MTT_ALLOCATED; | |
394 | atomic_set(&ret->ref_count, 0); | |
395 | ||
396 | return &ret->com; | |
397 | } | |
398 | ||
399 | static struct res_common *alloc_mpt_tr(int id, int key) | |
400 | { | |
401 | struct res_mpt *ret; | |
402 | ||
403 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
404 | if (!ret) | |
405 | return NULL; | |
406 | ||
407 | ret->com.res_id = id; | |
408 | ret->com.state = RES_MPT_RESERVED; | |
409 | ret->key = key; | |
410 | ||
411 | return &ret->com; | |
412 | } | |
413 | ||
414 | static struct res_common *alloc_eq_tr(int id) | |
415 | { | |
416 | struct res_eq *ret; | |
417 | ||
418 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
419 | if (!ret) | |
420 | return NULL; | |
421 | ||
422 | ret->com.res_id = id; | |
423 | ret->com.state = RES_EQ_RESERVED; | |
424 | ||
425 | return &ret->com; | |
426 | } | |
427 | ||
428 | static struct res_common *alloc_cq_tr(int id) | |
429 | { | |
430 | struct res_cq *ret; | |
431 | ||
432 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
433 | if (!ret) | |
434 | return NULL; | |
435 | ||
436 | ret->com.res_id = id; | |
437 | ret->com.state = RES_CQ_ALLOCATED; | |
438 | atomic_set(&ret->ref_count, 0); | |
439 | ||
440 | return &ret->com; | |
441 | } | |
442 | ||
443 | static struct res_common *alloc_srq_tr(int id) | |
444 | { | |
445 | struct res_srq *ret; | |
446 | ||
447 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
448 | if (!ret) | |
449 | return NULL; | |
450 | ||
451 | ret->com.res_id = id; | |
452 | ret->com.state = RES_SRQ_ALLOCATED; | |
453 | atomic_set(&ret->ref_count, 0); | |
454 | ||
455 | return &ret->com; | |
456 | } | |
457 | ||
458 | static struct res_common *alloc_counter_tr(int id) | |
459 | { | |
460 | struct res_counter *ret; | |
461 | ||
462 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
463 | if (!ret) | |
464 | return NULL; | |
465 | ||
466 | ret->com.res_id = id; | |
467 | ret->com.state = RES_COUNTER_ALLOCATED; | |
468 | ||
469 | return &ret->com; | |
470 | } | |
471 | ||
472 | static struct res_common *alloc_tr(int id, enum mlx4_resource type, int slave, | |
473 | int extra) | |
474 | { | |
475 | struct res_common *ret; | |
476 | ||
477 | switch (type) { | |
478 | case RES_QP: | |
479 | ret = alloc_qp_tr(id); | |
480 | break; | |
481 | case RES_MPT: | |
482 | ret = alloc_mpt_tr(id, extra); | |
483 | break; | |
484 | case RES_MTT: | |
485 | ret = alloc_mtt_tr(id, extra); | |
486 | break; | |
487 | case RES_EQ: | |
488 | ret = alloc_eq_tr(id); | |
489 | break; | |
490 | case RES_CQ: | |
491 | ret = alloc_cq_tr(id); | |
492 | break; | |
493 | case RES_SRQ: | |
494 | ret = alloc_srq_tr(id); | |
495 | break; | |
496 | case RES_MAC: | |
497 | printk(KERN_ERR "implementation missing\n"); | |
498 | return NULL; | |
499 | case RES_COUNTER: | |
500 | ret = alloc_counter_tr(id); | |
501 | break; | |
502 | ||
503 | default: | |
504 | return NULL; | |
505 | } | |
506 | if (ret) | |
507 | ret->owner = slave; | |
508 | ||
509 | return ret; | |
510 | } | |
511 | ||
512 | static int add_res_range(struct mlx4_dev *dev, int slave, int base, int count, | |
513 | enum mlx4_resource type, int extra) | |
514 | { | |
515 | int i; | |
516 | int err; | |
517 | struct mlx4_priv *priv = mlx4_priv(dev); | |
518 | struct res_common **res_arr; | |
519 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
520 | struct radix_tree_root *root = &tracker->res_tree[type]; | |
521 | ||
522 | res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL); | |
523 | if (!res_arr) | |
524 | return -ENOMEM; | |
525 | ||
526 | for (i = 0; i < count; ++i) { | |
527 | res_arr[i] = alloc_tr(base + i, type, slave, extra); | |
528 | if (!res_arr[i]) { | |
529 | for (--i; i >= 0; --i) | |
530 | kfree(res_arr[i]); | |
531 | ||
532 | kfree(res_arr); | |
533 | return -ENOMEM; | |
534 | } | |
535 | } | |
536 | ||
537 | spin_lock_irq(mlx4_tlock(dev)); | |
538 | for (i = 0; i < count; ++i) { | |
539 | if (find_res(dev, base + i, type)) { | |
540 | err = -EEXIST; | |
541 | goto undo; | |
542 | } | |
543 | err = radix_tree_insert(root, base + i, res_arr[i]); | |
544 | if (err) | |
545 | goto undo; | |
546 | list_add_tail(&res_arr[i]->list, | |
547 | &tracker->slave_list[slave].res_list[type]); | |
548 | } | |
549 | spin_unlock_irq(mlx4_tlock(dev)); | |
550 | kfree(res_arr); | |
551 | ||
552 | return 0; | |
553 | ||
554 | undo: | |
555 | for (--i; i >= base; --i) | |
556 | radix_tree_delete(&tracker->res_tree[type], i); | |
557 | ||
558 | spin_unlock_irq(mlx4_tlock(dev)); | |
559 | ||
560 | for (i = 0; i < count; ++i) | |
561 | kfree(res_arr[i]); | |
562 | ||
563 | kfree(res_arr); | |
564 | ||
565 | return err; | |
566 | } | |
567 | ||
568 | static int remove_qp_ok(struct res_qp *res) | |
569 | { | |
570 | if (res->com.state == RES_QP_BUSY) | |
571 | return -EBUSY; | |
572 | else if (res->com.state != RES_QP_RESERVED) | |
573 | return -EPERM; | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
578 | static int remove_mtt_ok(struct res_mtt *res, int order) | |
579 | { | |
580 | if (res->com.state == RES_MTT_BUSY || | |
581 | atomic_read(&res->ref_count)) { | |
582 | printk(KERN_DEBUG "%s-%d: state %s, ref_count %d\n", | |
583 | __func__, __LINE__, | |
584 | mtt_states_str(res->com.state), | |
585 | atomic_read(&res->ref_count)); | |
586 | return -EBUSY; | |
587 | } else if (res->com.state != RES_MTT_ALLOCATED) | |
588 | return -EPERM; | |
589 | else if (res->order != order) | |
590 | return -EINVAL; | |
591 | ||
592 | return 0; | |
593 | } | |
594 | ||
595 | static int remove_mpt_ok(struct res_mpt *res) | |
596 | { | |
597 | if (res->com.state == RES_MPT_BUSY) | |
598 | return -EBUSY; | |
599 | else if (res->com.state != RES_MPT_RESERVED) | |
600 | return -EPERM; | |
601 | ||
602 | return 0; | |
603 | } | |
604 | ||
605 | static int remove_eq_ok(struct res_eq *res) | |
606 | { | |
607 | if (res->com.state == RES_MPT_BUSY) | |
608 | return -EBUSY; | |
609 | else if (res->com.state != RES_MPT_RESERVED) | |
610 | return -EPERM; | |
611 | ||
612 | return 0; | |
613 | } | |
614 | ||
615 | static int remove_counter_ok(struct res_counter *res) | |
616 | { | |
617 | if (res->com.state == RES_COUNTER_BUSY) | |
618 | return -EBUSY; | |
619 | else if (res->com.state != RES_COUNTER_ALLOCATED) | |
620 | return -EPERM; | |
621 | ||
622 | return 0; | |
623 | } | |
624 | ||
625 | static int remove_cq_ok(struct res_cq *res) | |
626 | { | |
627 | if (res->com.state == RES_CQ_BUSY) | |
628 | return -EBUSY; | |
629 | else if (res->com.state != RES_CQ_ALLOCATED) | |
630 | return -EPERM; | |
631 | ||
632 | return 0; | |
633 | } | |
634 | ||
635 | static int remove_srq_ok(struct res_srq *res) | |
636 | { | |
637 | if (res->com.state == RES_SRQ_BUSY) | |
638 | return -EBUSY; | |
639 | else if (res->com.state != RES_SRQ_ALLOCATED) | |
640 | return -EPERM; | |
641 | ||
642 | return 0; | |
643 | } | |
644 | ||
645 | static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra) | |
646 | { | |
647 | switch (type) { | |
648 | case RES_QP: | |
649 | return remove_qp_ok((struct res_qp *)res); | |
650 | case RES_CQ: | |
651 | return remove_cq_ok((struct res_cq *)res); | |
652 | case RES_SRQ: | |
653 | return remove_srq_ok((struct res_srq *)res); | |
654 | case RES_MPT: | |
655 | return remove_mpt_ok((struct res_mpt *)res); | |
656 | case RES_MTT: | |
657 | return remove_mtt_ok((struct res_mtt *)res, extra); | |
658 | case RES_MAC: | |
659 | return -ENOSYS; | |
660 | case RES_EQ: | |
661 | return remove_eq_ok((struct res_eq *)res); | |
662 | case RES_COUNTER: | |
663 | return remove_counter_ok((struct res_counter *)res); | |
664 | default: | |
665 | return -EINVAL; | |
666 | } | |
667 | } | |
668 | ||
669 | static int rem_res_range(struct mlx4_dev *dev, int slave, int base, int count, | |
670 | enum mlx4_resource type, int extra) | |
671 | { | |
672 | int i; | |
673 | int err; | |
674 | struct mlx4_priv *priv = mlx4_priv(dev); | |
675 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
676 | struct res_common *r; | |
677 | ||
678 | spin_lock_irq(mlx4_tlock(dev)); | |
679 | for (i = base; i < base + count; ++i) { | |
680 | r = radix_tree_lookup(&tracker->res_tree[type], i); | |
681 | if (!r) { | |
682 | err = -ENOENT; | |
683 | goto out; | |
684 | } | |
685 | if (r->owner != slave) { | |
686 | err = -EPERM; | |
687 | goto out; | |
688 | } | |
689 | err = remove_ok(r, type, extra); | |
690 | if (err) | |
691 | goto out; | |
692 | } | |
693 | ||
694 | for (i = base; i < base + count; ++i) { | |
695 | r = radix_tree_lookup(&tracker->res_tree[type], i); | |
696 | radix_tree_delete(&tracker->res_tree[type], i); | |
697 | list_del(&r->list); | |
698 | kfree(r); | |
699 | } | |
700 | err = 0; | |
701 | ||
702 | out: | |
703 | spin_unlock_irq(mlx4_tlock(dev)); | |
704 | ||
705 | return err; | |
706 | } | |
707 | ||
708 | static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn, | |
709 | enum res_qp_states state, struct res_qp **qp, | |
710 | int alloc) | |
711 | { | |
712 | struct mlx4_priv *priv = mlx4_priv(dev); | |
713 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
714 | struct res_qp *r; | |
715 | int err = 0; | |
716 | ||
717 | spin_lock_irq(mlx4_tlock(dev)); | |
718 | r = radix_tree_lookup(&tracker->res_tree[RES_QP], qpn); | |
719 | if (!r) | |
720 | err = -ENOENT; | |
721 | else if (r->com.owner != slave) | |
722 | err = -EPERM; | |
723 | else { | |
724 | switch (state) { | |
725 | case RES_QP_BUSY: | |
726 | mlx4_dbg(dev, "%s: failed RES_QP, 0x%x\n", | |
727 | __func__, r->com.res_id); | |
728 | err = -EBUSY; | |
729 | break; | |
730 | ||
731 | case RES_QP_RESERVED: | |
732 | if (r->com.state == RES_QP_MAPPED && !alloc) | |
733 | break; | |
734 | ||
735 | mlx4_dbg(dev, "failed RES_QP, 0x%x\n", r->com.res_id); | |
736 | err = -EINVAL; | |
737 | break; | |
738 | ||
739 | case RES_QP_MAPPED: | |
740 | if ((r->com.state == RES_QP_RESERVED && alloc) || | |
741 | r->com.state == RES_QP_HW) | |
742 | break; | |
743 | else { | |
744 | mlx4_dbg(dev, "failed RES_QP, 0x%x\n", | |
745 | r->com.res_id); | |
746 | err = -EINVAL; | |
747 | } | |
748 | ||
749 | break; | |
750 | ||
751 | case RES_QP_HW: | |
752 | if (r->com.state != RES_QP_MAPPED) | |
753 | err = -EINVAL; | |
754 | break; | |
755 | default: | |
756 | err = -EINVAL; | |
757 | } | |
758 | ||
759 | if (!err) { | |
760 | r->com.from_state = r->com.state; | |
761 | r->com.to_state = state; | |
762 | r->com.state = RES_QP_BUSY; | |
763 | if (qp) | |
764 | *qp = (struct res_qp *)r; | |
765 | } | |
766 | } | |
767 | ||
768 | spin_unlock_irq(mlx4_tlock(dev)); | |
769 | ||
770 | return err; | |
771 | } | |
772 | ||
773 | static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index, | |
774 | enum res_mpt_states state, struct res_mpt **mpt) | |
775 | { | |
776 | struct mlx4_priv *priv = mlx4_priv(dev); | |
777 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
778 | struct res_mpt *r; | |
779 | int err = 0; | |
780 | ||
781 | spin_lock_irq(mlx4_tlock(dev)); | |
782 | r = radix_tree_lookup(&tracker->res_tree[RES_MPT], index); | |
783 | if (!r) | |
784 | err = -ENOENT; | |
785 | else if (r->com.owner != slave) | |
786 | err = -EPERM; | |
787 | else { | |
788 | switch (state) { | |
789 | case RES_MPT_BUSY: | |
790 | err = -EINVAL; | |
791 | break; | |
792 | ||
793 | case RES_MPT_RESERVED: | |
794 | if (r->com.state != RES_MPT_MAPPED) | |
795 | err = -EINVAL; | |
796 | break; | |
797 | ||
798 | case RES_MPT_MAPPED: | |
799 | if (r->com.state != RES_MPT_RESERVED && | |
800 | r->com.state != RES_MPT_HW) | |
801 | err = -EINVAL; | |
802 | break; | |
803 | ||
804 | case RES_MPT_HW: | |
805 | if (r->com.state != RES_MPT_MAPPED) | |
806 | err = -EINVAL; | |
807 | break; | |
808 | default: | |
809 | err = -EINVAL; | |
810 | } | |
811 | ||
812 | if (!err) { | |
813 | r->com.from_state = r->com.state; | |
814 | r->com.to_state = state; | |
815 | r->com.state = RES_MPT_BUSY; | |
816 | if (mpt) | |
817 | *mpt = (struct res_mpt *)r; | |
818 | } | |
819 | } | |
820 | ||
821 | spin_unlock_irq(mlx4_tlock(dev)); | |
822 | ||
823 | return err; | |
824 | } | |
825 | ||
826 | static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, | |
827 | enum res_eq_states state, struct res_eq **eq) | |
828 | { | |
829 | struct mlx4_priv *priv = mlx4_priv(dev); | |
830 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
831 | struct res_eq *r; | |
832 | int err = 0; | |
833 | ||
834 | spin_lock_irq(mlx4_tlock(dev)); | |
835 | r = radix_tree_lookup(&tracker->res_tree[RES_EQ], index); | |
836 | if (!r) | |
837 | err = -ENOENT; | |
838 | else if (r->com.owner != slave) | |
839 | err = -EPERM; | |
840 | else { | |
841 | switch (state) { | |
842 | case RES_EQ_BUSY: | |
843 | err = -EINVAL; | |
844 | break; | |
845 | ||
846 | case RES_EQ_RESERVED: | |
847 | if (r->com.state != RES_EQ_HW) | |
848 | err = -EINVAL; | |
849 | break; | |
850 | ||
851 | case RES_EQ_HW: | |
852 | if (r->com.state != RES_EQ_RESERVED) | |
853 | err = -EINVAL; | |
854 | break; | |
855 | ||
856 | default: | |
857 | err = -EINVAL; | |
858 | } | |
859 | ||
860 | if (!err) { | |
861 | r->com.from_state = r->com.state; | |
862 | r->com.to_state = state; | |
863 | r->com.state = RES_EQ_BUSY; | |
864 | if (eq) | |
865 | *eq = r; | |
866 | } | |
867 | } | |
868 | ||
869 | spin_unlock_irq(mlx4_tlock(dev)); | |
870 | ||
871 | return err; | |
872 | } | |
873 | ||
874 | static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn, | |
875 | enum res_cq_states state, struct res_cq **cq) | |
876 | { | |
877 | struct mlx4_priv *priv = mlx4_priv(dev); | |
878 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
879 | struct res_cq *r; | |
880 | int err; | |
881 | ||
882 | spin_lock_irq(mlx4_tlock(dev)); | |
883 | r = radix_tree_lookup(&tracker->res_tree[RES_CQ], cqn); | |
884 | if (!r) | |
885 | err = -ENOENT; | |
886 | else if (r->com.owner != slave) | |
887 | err = -EPERM; | |
888 | else { | |
889 | switch (state) { | |
890 | case RES_CQ_BUSY: | |
891 | err = -EBUSY; | |
892 | break; | |
893 | ||
894 | case RES_CQ_ALLOCATED: | |
895 | if (r->com.state != RES_CQ_HW) | |
896 | err = -EINVAL; | |
897 | else if (atomic_read(&r->ref_count)) | |
898 | err = -EBUSY; | |
899 | else | |
900 | err = 0; | |
901 | break; | |
902 | ||
903 | case RES_CQ_HW: | |
904 | if (r->com.state != RES_CQ_ALLOCATED) | |
905 | err = -EINVAL; | |
906 | else | |
907 | err = 0; | |
908 | break; | |
909 | ||
910 | default: | |
911 | err = -EINVAL; | |
912 | } | |
913 | ||
914 | if (!err) { | |
915 | r->com.from_state = r->com.state; | |
916 | r->com.to_state = state; | |
917 | r->com.state = RES_CQ_BUSY; | |
918 | if (cq) | |
919 | *cq = r; | |
920 | } | |
921 | } | |
922 | ||
923 | spin_unlock_irq(mlx4_tlock(dev)); | |
924 | ||
925 | return err; | |
926 | } | |
927 | ||
928 | static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, | |
929 | enum res_cq_states state, struct res_srq **srq) | |
930 | { | |
931 | struct mlx4_priv *priv = mlx4_priv(dev); | |
932 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
933 | struct res_srq *r; | |
934 | int err = 0; | |
935 | ||
936 | spin_lock_irq(mlx4_tlock(dev)); | |
937 | r = radix_tree_lookup(&tracker->res_tree[RES_SRQ], index); | |
938 | if (!r) | |
939 | err = -ENOENT; | |
940 | else if (r->com.owner != slave) | |
941 | err = -EPERM; | |
942 | else { | |
943 | switch (state) { | |
944 | case RES_SRQ_BUSY: | |
945 | err = -EINVAL; | |
946 | break; | |
947 | ||
948 | case RES_SRQ_ALLOCATED: | |
949 | if (r->com.state != RES_SRQ_HW) | |
950 | err = -EINVAL; | |
951 | else if (atomic_read(&r->ref_count)) | |
952 | err = -EBUSY; | |
953 | break; | |
954 | ||
955 | case RES_SRQ_HW: | |
956 | if (r->com.state != RES_SRQ_ALLOCATED) | |
957 | err = -EINVAL; | |
958 | break; | |
959 | ||
960 | default: | |
961 | err = -EINVAL; | |
962 | } | |
963 | ||
964 | if (!err) { | |
965 | r->com.from_state = r->com.state; | |
966 | r->com.to_state = state; | |
967 | r->com.state = RES_SRQ_BUSY; | |
968 | if (srq) | |
969 | *srq = r; | |
970 | } | |
971 | } | |
972 | ||
973 | spin_unlock_irq(mlx4_tlock(dev)); | |
974 | ||
975 | return err; | |
976 | } | |
977 | ||
978 | static void res_abort_move(struct mlx4_dev *dev, int slave, | |
979 | enum mlx4_resource type, int id) | |
980 | { | |
981 | struct mlx4_priv *priv = mlx4_priv(dev); | |
982 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
983 | struct res_common *r; | |
984 | ||
985 | spin_lock_irq(mlx4_tlock(dev)); | |
986 | r = radix_tree_lookup(&tracker->res_tree[type], id); | |
987 | if (r && (r->owner == slave)) | |
988 | r->state = r->from_state; | |
989 | spin_unlock_irq(mlx4_tlock(dev)); | |
990 | } | |
991 | ||
992 | static void res_end_move(struct mlx4_dev *dev, int slave, | |
993 | enum mlx4_resource type, int id) | |
994 | { | |
995 | struct mlx4_priv *priv = mlx4_priv(dev); | |
996 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
997 | struct res_common *r; | |
998 | ||
999 | spin_lock_irq(mlx4_tlock(dev)); | |
1000 | r = radix_tree_lookup(&tracker->res_tree[type], id); | |
1001 | if (r && (r->owner == slave)) | |
1002 | r->state = r->to_state; | |
1003 | spin_unlock_irq(mlx4_tlock(dev)); | |
1004 | } | |
1005 | ||
1006 | static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn) | |
1007 | { | |
1008 | return mlx4_is_qp_reserved(dev, qpn); | |
1009 | } | |
1010 | ||
1011 | static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1012 | u64 in_param, u64 *out_param) | |
1013 | { | |
1014 | int err; | |
1015 | int count; | |
1016 | int align; | |
1017 | int base; | |
1018 | int qpn; | |
1019 | ||
1020 | switch (op) { | |
1021 | case RES_OP_RESERVE: | |
1022 | count = get_param_l(&in_param); | |
1023 | align = get_param_h(&in_param); | |
1024 | err = __mlx4_qp_reserve_range(dev, count, align, &base); | |
1025 | if (err) | |
1026 | return err; | |
1027 | ||
1028 | err = add_res_range(dev, slave, base, count, RES_QP, 0); | |
1029 | if (err) { | |
1030 | __mlx4_qp_release_range(dev, base, count); | |
1031 | return err; | |
1032 | } | |
1033 | set_param_l(out_param, base); | |
1034 | break; | |
1035 | case RES_OP_MAP_ICM: | |
1036 | qpn = get_param_l(&in_param) & 0x7fffff; | |
1037 | if (valid_reserved(dev, slave, qpn)) { | |
1038 | err = add_res_range(dev, slave, qpn, 1, RES_QP, 0); | |
1039 | if (err) | |
1040 | return err; | |
1041 | } | |
1042 | ||
1043 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, | |
1044 | NULL, 1); | |
1045 | if (err) | |
1046 | return err; | |
1047 | ||
1048 | if (!valid_reserved(dev, slave, qpn)) { | |
1049 | err = __mlx4_qp_alloc_icm(dev, qpn); | |
1050 | if (err) { | |
1051 | res_abort_move(dev, slave, RES_QP, qpn); | |
1052 | return err; | |
1053 | } | |
1054 | } | |
1055 | ||
1056 | res_end_move(dev, slave, RES_QP, qpn); | |
1057 | break; | |
1058 | ||
1059 | default: | |
1060 | err = -EINVAL; | |
1061 | break; | |
1062 | } | |
1063 | return err; | |
1064 | } | |
1065 | ||
1066 | static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1067 | u64 in_param, u64 *out_param) | |
1068 | { | |
1069 | int err = -EINVAL; | |
1070 | int base; | |
1071 | int order; | |
1072 | ||
1073 | if (op != RES_OP_RESERVE_AND_MAP) | |
1074 | return err; | |
1075 | ||
1076 | order = get_param_l(&in_param); | |
1077 | base = __mlx4_alloc_mtt_range(dev, order); | |
1078 | if (base == -1) | |
1079 | return -ENOMEM; | |
1080 | ||
1081 | err = add_res_range(dev, slave, base, 1, RES_MTT, order); | |
1082 | if (err) | |
1083 | __mlx4_free_mtt_range(dev, base, order); | |
1084 | else | |
1085 | set_param_l(out_param, base); | |
1086 | ||
1087 | return err; | |
1088 | } | |
1089 | ||
1090 | static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1091 | u64 in_param, u64 *out_param) | |
1092 | { | |
1093 | int err = -EINVAL; | |
1094 | int index; | |
1095 | int id; | |
1096 | struct res_mpt *mpt; | |
1097 | ||
1098 | switch (op) { | |
1099 | case RES_OP_RESERVE: | |
1100 | index = __mlx4_mr_reserve(dev); | |
1101 | if (index == -1) | |
1102 | break; | |
1103 | id = index & mpt_mask(dev); | |
1104 | ||
1105 | err = add_res_range(dev, slave, id, 1, RES_MPT, index); | |
1106 | if (err) { | |
1107 | __mlx4_mr_release(dev, index); | |
1108 | break; | |
1109 | } | |
1110 | set_param_l(out_param, index); | |
1111 | break; | |
1112 | case RES_OP_MAP_ICM: | |
1113 | index = get_param_l(&in_param); | |
1114 | id = index & mpt_mask(dev); | |
1115 | err = mr_res_start_move_to(dev, slave, id, | |
1116 | RES_MPT_MAPPED, &mpt); | |
1117 | if (err) | |
1118 | return err; | |
1119 | ||
1120 | err = __mlx4_mr_alloc_icm(dev, mpt->key); | |
1121 | if (err) { | |
1122 | res_abort_move(dev, slave, RES_MPT, id); | |
1123 | return err; | |
1124 | } | |
1125 | ||
1126 | res_end_move(dev, slave, RES_MPT, id); | |
1127 | break; | |
1128 | } | |
1129 | return err; | |
1130 | } | |
1131 | ||
1132 | static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1133 | u64 in_param, u64 *out_param) | |
1134 | { | |
1135 | int cqn; | |
1136 | int err; | |
1137 | ||
1138 | switch (op) { | |
1139 | case RES_OP_RESERVE_AND_MAP: | |
1140 | err = __mlx4_cq_alloc_icm(dev, &cqn); | |
1141 | if (err) | |
1142 | break; | |
1143 | ||
1144 | err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0); | |
1145 | if (err) { | |
1146 | __mlx4_cq_free_icm(dev, cqn); | |
1147 | break; | |
1148 | } | |
1149 | ||
1150 | set_param_l(out_param, cqn); | |
1151 | break; | |
1152 | ||
1153 | default: | |
1154 | err = -EINVAL; | |
1155 | } | |
1156 | ||
1157 | return err; | |
1158 | } | |
1159 | ||
1160 | static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1161 | u64 in_param, u64 *out_param) | |
1162 | { | |
1163 | int srqn; | |
1164 | int err; | |
1165 | ||
1166 | switch (op) { | |
1167 | case RES_OP_RESERVE_AND_MAP: | |
1168 | err = __mlx4_srq_alloc_icm(dev, &srqn); | |
1169 | if (err) | |
1170 | break; | |
1171 | ||
1172 | err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0); | |
1173 | if (err) { | |
1174 | __mlx4_srq_free_icm(dev, srqn); | |
1175 | break; | |
1176 | } | |
1177 | ||
1178 | set_param_l(out_param, srqn); | |
1179 | break; | |
1180 | ||
1181 | default: | |
1182 | err = -EINVAL; | |
1183 | } | |
1184 | ||
1185 | return err; | |
1186 | } | |
1187 | ||
1188 | static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port) | |
1189 | { | |
1190 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1191 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1192 | struct mac_res *res; | |
1193 | ||
1194 | res = kzalloc(sizeof *res, GFP_KERNEL); | |
1195 | if (!res) | |
1196 | return -ENOMEM; | |
1197 | res->mac = mac; | |
1198 | res->port = (u8) port; | |
1199 | list_add_tail(&res->list, | |
1200 | &tracker->slave_list[slave].res_list[RES_MAC]); | |
1201 | return 0; | |
1202 | } | |
1203 | ||
1204 | static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac, | |
1205 | int port) | |
1206 | { | |
1207 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1208 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1209 | struct list_head *mac_list = | |
1210 | &tracker->slave_list[slave].res_list[RES_MAC]; | |
1211 | struct mac_res *res, *tmp; | |
1212 | ||
1213 | list_for_each_entry_safe(res, tmp, mac_list, list) { | |
1214 | if (res->mac == mac && res->port == (u8) port) { | |
1215 | list_del(&res->list); | |
1216 | kfree(res); | |
1217 | break; | |
1218 | } | |
1219 | } | |
1220 | } | |
1221 | ||
1222 | static void rem_slave_macs(struct mlx4_dev *dev, int slave) | |
1223 | { | |
1224 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1225 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1226 | struct list_head *mac_list = | |
1227 | &tracker->slave_list[slave].res_list[RES_MAC]; | |
1228 | struct mac_res *res, *tmp; | |
1229 | ||
1230 | list_for_each_entry_safe(res, tmp, mac_list, list) { | |
1231 | list_del(&res->list); | |
1232 | __mlx4_unregister_mac(dev, res->port, res->mac); | |
1233 | kfree(res); | |
1234 | } | |
1235 | } | |
1236 | ||
1237 | static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1238 | u64 in_param, u64 *out_param) | |
1239 | { | |
1240 | int err = -EINVAL; | |
1241 | int port; | |
1242 | u64 mac; | |
1243 | ||
1244 | if (op != RES_OP_RESERVE_AND_MAP) | |
1245 | return err; | |
1246 | ||
1247 | port = get_param_l(out_param); | |
1248 | mac = in_param; | |
1249 | ||
1250 | err = __mlx4_register_mac(dev, port, mac); | |
1251 | if (err >= 0) { | |
1252 | set_param_l(out_param, err); | |
1253 | err = 0; | |
1254 | } | |
1255 | ||
1256 | if (!err) { | |
1257 | err = mac_add_to_slave(dev, slave, mac, port); | |
1258 | if (err) | |
1259 | __mlx4_unregister_mac(dev, port, mac); | |
1260 | } | |
1261 | return err; | |
1262 | } | |
1263 | ||
ffe455ad EE |
1264 | static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
1265 | u64 in_param, u64 *out_param) | |
1266 | { | |
1267 | return 0; | |
1268 | } | |
1269 | ||
c82e9aa0 EC |
1270 | int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave, |
1271 | struct mlx4_vhcr *vhcr, | |
1272 | struct mlx4_cmd_mailbox *inbox, | |
1273 | struct mlx4_cmd_mailbox *outbox, | |
1274 | struct mlx4_cmd_info *cmd) | |
1275 | { | |
1276 | int err; | |
1277 | int alop = vhcr->op_modifier; | |
1278 | ||
1279 | switch (vhcr->in_modifier) { | |
1280 | case RES_QP: | |
1281 | err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1282 | vhcr->in_param, &vhcr->out_param); | |
1283 | break; | |
1284 | ||
1285 | case RES_MTT: | |
1286 | err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1287 | vhcr->in_param, &vhcr->out_param); | |
1288 | break; | |
1289 | ||
1290 | case RES_MPT: | |
1291 | err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1292 | vhcr->in_param, &vhcr->out_param); | |
1293 | break; | |
1294 | ||
1295 | case RES_CQ: | |
1296 | err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1297 | vhcr->in_param, &vhcr->out_param); | |
1298 | break; | |
1299 | ||
1300 | case RES_SRQ: | |
1301 | err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1302 | vhcr->in_param, &vhcr->out_param); | |
1303 | break; | |
1304 | ||
1305 | case RES_MAC: | |
1306 | err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1307 | vhcr->in_param, &vhcr->out_param); | |
1308 | break; | |
1309 | ||
ffe455ad EE |
1310 | case RES_VLAN: |
1311 | err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1312 | vhcr->in_param, &vhcr->out_param); | |
1313 | break; | |
1314 | ||
c82e9aa0 EC |
1315 | default: |
1316 | err = -EINVAL; | |
1317 | break; | |
1318 | } | |
1319 | ||
1320 | return err; | |
1321 | } | |
1322 | ||
1323 | static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1324 | u64 in_param) | |
1325 | { | |
1326 | int err; | |
1327 | int count; | |
1328 | int base; | |
1329 | int qpn; | |
1330 | ||
1331 | switch (op) { | |
1332 | case RES_OP_RESERVE: | |
1333 | base = get_param_l(&in_param) & 0x7fffff; | |
1334 | count = get_param_h(&in_param); | |
1335 | err = rem_res_range(dev, slave, base, count, RES_QP, 0); | |
1336 | if (err) | |
1337 | break; | |
1338 | __mlx4_qp_release_range(dev, base, count); | |
1339 | break; | |
1340 | case RES_OP_MAP_ICM: | |
1341 | qpn = get_param_l(&in_param) & 0x7fffff; | |
1342 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED, | |
1343 | NULL, 0); | |
1344 | if (err) | |
1345 | return err; | |
1346 | ||
1347 | if (!valid_reserved(dev, slave, qpn)) | |
1348 | __mlx4_qp_free_icm(dev, qpn); | |
1349 | ||
1350 | res_end_move(dev, slave, RES_QP, qpn); | |
1351 | ||
1352 | if (valid_reserved(dev, slave, qpn)) | |
1353 | err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0); | |
1354 | break; | |
1355 | default: | |
1356 | err = -EINVAL; | |
1357 | break; | |
1358 | } | |
1359 | return err; | |
1360 | } | |
1361 | ||
1362 | static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1363 | u64 in_param, u64 *out_param) | |
1364 | { | |
1365 | int err = -EINVAL; | |
1366 | int base; | |
1367 | int order; | |
1368 | ||
1369 | if (op != RES_OP_RESERVE_AND_MAP) | |
1370 | return err; | |
1371 | ||
1372 | base = get_param_l(&in_param); | |
1373 | order = get_param_h(&in_param); | |
1374 | err = rem_res_range(dev, slave, base, 1, RES_MTT, order); | |
1375 | if (!err) | |
1376 | __mlx4_free_mtt_range(dev, base, order); | |
1377 | return err; | |
1378 | } | |
1379 | ||
1380 | static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1381 | u64 in_param) | |
1382 | { | |
1383 | int err = -EINVAL; | |
1384 | int index; | |
1385 | int id; | |
1386 | struct res_mpt *mpt; | |
1387 | ||
1388 | switch (op) { | |
1389 | case RES_OP_RESERVE: | |
1390 | index = get_param_l(&in_param); | |
1391 | id = index & mpt_mask(dev); | |
1392 | err = get_res(dev, slave, id, RES_MPT, &mpt); | |
1393 | if (err) | |
1394 | break; | |
1395 | index = mpt->key; | |
1396 | put_res(dev, slave, id, RES_MPT); | |
1397 | ||
1398 | err = rem_res_range(dev, slave, id, 1, RES_MPT, 0); | |
1399 | if (err) | |
1400 | break; | |
1401 | __mlx4_mr_release(dev, index); | |
1402 | break; | |
1403 | case RES_OP_MAP_ICM: | |
1404 | index = get_param_l(&in_param); | |
1405 | id = index & mpt_mask(dev); | |
1406 | err = mr_res_start_move_to(dev, slave, id, | |
1407 | RES_MPT_RESERVED, &mpt); | |
1408 | if (err) | |
1409 | return err; | |
1410 | ||
1411 | __mlx4_mr_free_icm(dev, mpt->key); | |
1412 | res_end_move(dev, slave, RES_MPT, id); | |
1413 | return err; | |
1414 | break; | |
1415 | default: | |
1416 | err = -EINVAL; | |
1417 | break; | |
1418 | } | |
1419 | return err; | |
1420 | } | |
1421 | ||
1422 | static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1423 | u64 in_param, u64 *out_param) | |
1424 | { | |
1425 | int cqn; | |
1426 | int err; | |
1427 | ||
1428 | switch (op) { | |
1429 | case RES_OP_RESERVE_AND_MAP: | |
1430 | cqn = get_param_l(&in_param); | |
1431 | err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0); | |
1432 | if (err) | |
1433 | break; | |
1434 | ||
1435 | __mlx4_cq_free_icm(dev, cqn); | |
1436 | break; | |
1437 | ||
1438 | default: | |
1439 | err = -EINVAL; | |
1440 | break; | |
1441 | } | |
1442 | ||
1443 | return err; | |
1444 | } | |
1445 | ||
1446 | static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1447 | u64 in_param, u64 *out_param) | |
1448 | { | |
1449 | int srqn; | |
1450 | int err; | |
1451 | ||
1452 | switch (op) { | |
1453 | case RES_OP_RESERVE_AND_MAP: | |
1454 | srqn = get_param_l(&in_param); | |
1455 | err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0); | |
1456 | if (err) | |
1457 | break; | |
1458 | ||
1459 | __mlx4_srq_free_icm(dev, srqn); | |
1460 | break; | |
1461 | ||
1462 | default: | |
1463 | err = -EINVAL; | |
1464 | break; | |
1465 | } | |
1466 | ||
1467 | return err; | |
1468 | } | |
1469 | ||
1470 | static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1471 | u64 in_param, u64 *out_param) | |
1472 | { | |
1473 | int port; | |
1474 | int err = 0; | |
1475 | ||
1476 | switch (op) { | |
1477 | case RES_OP_RESERVE_AND_MAP: | |
1478 | port = get_param_l(out_param); | |
1479 | mac_del_from_slave(dev, slave, in_param, port); | |
1480 | __mlx4_unregister_mac(dev, port, in_param); | |
1481 | break; | |
1482 | default: | |
1483 | err = -EINVAL; | |
1484 | break; | |
1485 | } | |
1486 | ||
1487 | return err; | |
1488 | ||
1489 | } | |
1490 | ||
ffe455ad EE |
1491 | static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
1492 | u64 in_param, u64 *out_param) | |
1493 | { | |
1494 | return 0; | |
1495 | } | |
1496 | ||
c82e9aa0 EC |
1497 | int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave, |
1498 | struct mlx4_vhcr *vhcr, | |
1499 | struct mlx4_cmd_mailbox *inbox, | |
1500 | struct mlx4_cmd_mailbox *outbox, | |
1501 | struct mlx4_cmd_info *cmd) | |
1502 | { | |
1503 | int err = -EINVAL; | |
1504 | int alop = vhcr->op_modifier; | |
1505 | ||
1506 | switch (vhcr->in_modifier) { | |
1507 | case RES_QP: | |
1508 | err = qp_free_res(dev, slave, vhcr->op_modifier, alop, | |
1509 | vhcr->in_param); | |
1510 | break; | |
1511 | ||
1512 | case RES_MTT: | |
1513 | err = mtt_free_res(dev, slave, vhcr->op_modifier, alop, | |
1514 | vhcr->in_param, &vhcr->out_param); | |
1515 | break; | |
1516 | ||
1517 | case RES_MPT: | |
1518 | err = mpt_free_res(dev, slave, vhcr->op_modifier, alop, | |
1519 | vhcr->in_param); | |
1520 | break; | |
1521 | ||
1522 | case RES_CQ: | |
1523 | err = cq_free_res(dev, slave, vhcr->op_modifier, alop, | |
1524 | vhcr->in_param, &vhcr->out_param); | |
1525 | break; | |
1526 | ||
1527 | case RES_SRQ: | |
1528 | err = srq_free_res(dev, slave, vhcr->op_modifier, alop, | |
1529 | vhcr->in_param, &vhcr->out_param); | |
1530 | break; | |
1531 | ||
1532 | case RES_MAC: | |
1533 | err = mac_free_res(dev, slave, vhcr->op_modifier, alop, | |
1534 | vhcr->in_param, &vhcr->out_param); | |
1535 | break; | |
1536 | ||
ffe455ad EE |
1537 | case RES_VLAN: |
1538 | err = vlan_free_res(dev, slave, vhcr->op_modifier, alop, | |
1539 | vhcr->in_param, &vhcr->out_param); | |
1540 | break; | |
1541 | ||
c82e9aa0 EC |
1542 | default: |
1543 | break; | |
1544 | } | |
1545 | return err; | |
1546 | } | |
1547 | ||
1548 | /* ugly but other choices are uglier */ | |
1549 | static int mr_phys_mpt(struct mlx4_mpt_entry *mpt) | |
1550 | { | |
1551 | return (be32_to_cpu(mpt->flags) >> 9) & 1; | |
1552 | } | |
1553 | ||
2b8fb286 | 1554 | static int mr_get_mtt_addr(struct mlx4_mpt_entry *mpt) |
c82e9aa0 | 1555 | { |
2b8fb286 | 1556 | return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8; |
c82e9aa0 EC |
1557 | } |
1558 | ||
1559 | static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt) | |
1560 | { | |
1561 | return be32_to_cpu(mpt->mtt_sz); | |
1562 | } | |
1563 | ||
2b8fb286 | 1564 | static int qp_get_mtt_addr(struct mlx4_qp_context *qpc) |
c82e9aa0 EC |
1565 | { |
1566 | return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8; | |
1567 | } | |
1568 | ||
2b8fb286 | 1569 | static int srq_get_mtt_addr(struct mlx4_srq_context *srqc) |
c82e9aa0 EC |
1570 | { |
1571 | return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8; | |
1572 | } | |
1573 | ||
1574 | static int qp_get_mtt_size(struct mlx4_qp_context *qpc) | |
1575 | { | |
1576 | int page_shift = (qpc->log_page_size & 0x3f) + 12; | |
1577 | int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf; | |
1578 | int log_sq_sride = qpc->sq_size_stride & 7; | |
1579 | int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf; | |
1580 | int log_rq_stride = qpc->rq_size_stride & 7; | |
1581 | int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1; | |
1582 | int rss = (be32_to_cpu(qpc->flags) >> 13) & 1; | |
1583 | int xrc = (be32_to_cpu(qpc->local_qpn) >> 23) & 1; | |
1584 | int sq_size; | |
1585 | int rq_size; | |
1586 | int total_pages; | |
1587 | int total_mem; | |
1588 | int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f; | |
1589 | ||
1590 | sq_size = 1 << (log_sq_size + log_sq_sride + 4); | |
1591 | rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4)); | |
1592 | total_mem = sq_size + rq_size; | |
1593 | total_pages = | |
1594 | roundup_pow_of_two((total_mem + (page_offset << 6)) >> | |
1595 | page_shift); | |
1596 | ||
1597 | return total_pages; | |
1598 | } | |
1599 | ||
c82e9aa0 EC |
1600 | static int check_mtt_range(struct mlx4_dev *dev, int slave, int start, |
1601 | int size, struct res_mtt *mtt) | |
1602 | { | |
2b8fb286 MA |
1603 | int res_start = mtt->com.res_id; |
1604 | int res_size = (1 << mtt->order); | |
c82e9aa0 EC |
1605 | |
1606 | if (start < res_start || start + size > res_start + res_size) | |
1607 | return -EPERM; | |
1608 | return 0; | |
1609 | } | |
1610 | ||
1611 | int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave, | |
1612 | struct mlx4_vhcr *vhcr, | |
1613 | struct mlx4_cmd_mailbox *inbox, | |
1614 | struct mlx4_cmd_mailbox *outbox, | |
1615 | struct mlx4_cmd_info *cmd) | |
1616 | { | |
1617 | int err; | |
1618 | int index = vhcr->in_modifier; | |
1619 | struct res_mtt *mtt; | |
1620 | struct res_mpt *mpt; | |
2b8fb286 | 1621 | int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
1622 | int phys; |
1623 | int id; | |
1624 | ||
1625 | id = index & mpt_mask(dev); | |
1626 | err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt); | |
1627 | if (err) | |
1628 | return err; | |
1629 | ||
1630 | phys = mr_phys_mpt(inbox->buf); | |
1631 | if (!phys) { | |
2b8fb286 | 1632 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
1633 | if (err) |
1634 | goto ex_abort; | |
1635 | ||
1636 | err = check_mtt_range(dev, slave, mtt_base, | |
1637 | mr_get_mtt_size(inbox->buf), mtt); | |
1638 | if (err) | |
1639 | goto ex_put; | |
1640 | ||
1641 | mpt->mtt = mtt; | |
1642 | } | |
1643 | ||
c82e9aa0 EC |
1644 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
1645 | if (err) | |
1646 | goto ex_put; | |
1647 | ||
1648 | if (!phys) { | |
1649 | atomic_inc(&mtt->ref_count); | |
1650 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
1651 | } | |
1652 | ||
1653 | res_end_move(dev, slave, RES_MPT, id); | |
1654 | return 0; | |
1655 | ||
1656 | ex_put: | |
1657 | if (!phys) | |
1658 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
1659 | ex_abort: | |
1660 | res_abort_move(dev, slave, RES_MPT, id); | |
1661 | ||
1662 | return err; | |
1663 | } | |
1664 | ||
1665 | int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave, | |
1666 | struct mlx4_vhcr *vhcr, | |
1667 | struct mlx4_cmd_mailbox *inbox, | |
1668 | struct mlx4_cmd_mailbox *outbox, | |
1669 | struct mlx4_cmd_info *cmd) | |
1670 | { | |
1671 | int err; | |
1672 | int index = vhcr->in_modifier; | |
1673 | struct res_mpt *mpt; | |
1674 | int id; | |
1675 | ||
1676 | id = index & mpt_mask(dev); | |
1677 | err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt); | |
1678 | if (err) | |
1679 | return err; | |
1680 | ||
1681 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1682 | if (err) | |
1683 | goto ex_abort; | |
1684 | ||
1685 | if (mpt->mtt) | |
1686 | atomic_dec(&mpt->mtt->ref_count); | |
1687 | ||
1688 | res_end_move(dev, slave, RES_MPT, id); | |
1689 | return 0; | |
1690 | ||
1691 | ex_abort: | |
1692 | res_abort_move(dev, slave, RES_MPT, id); | |
1693 | ||
1694 | return err; | |
1695 | } | |
1696 | ||
1697 | int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave, | |
1698 | struct mlx4_vhcr *vhcr, | |
1699 | struct mlx4_cmd_mailbox *inbox, | |
1700 | struct mlx4_cmd_mailbox *outbox, | |
1701 | struct mlx4_cmd_info *cmd) | |
1702 | { | |
1703 | int err; | |
1704 | int index = vhcr->in_modifier; | |
1705 | struct res_mpt *mpt; | |
1706 | int id; | |
1707 | ||
1708 | id = index & mpt_mask(dev); | |
1709 | err = get_res(dev, slave, id, RES_MPT, &mpt); | |
1710 | if (err) | |
1711 | return err; | |
1712 | ||
1713 | if (mpt->com.from_state != RES_MPT_HW) { | |
1714 | err = -EBUSY; | |
1715 | goto out; | |
1716 | } | |
1717 | ||
1718 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1719 | ||
1720 | out: | |
1721 | put_res(dev, slave, id, RES_MPT); | |
1722 | return err; | |
1723 | } | |
1724 | ||
1725 | static int qp_get_rcqn(struct mlx4_qp_context *qpc) | |
1726 | { | |
1727 | return be32_to_cpu(qpc->cqn_recv) & 0xffffff; | |
1728 | } | |
1729 | ||
1730 | static int qp_get_scqn(struct mlx4_qp_context *qpc) | |
1731 | { | |
1732 | return be32_to_cpu(qpc->cqn_send) & 0xffffff; | |
1733 | } | |
1734 | ||
1735 | static u32 qp_get_srqn(struct mlx4_qp_context *qpc) | |
1736 | { | |
1737 | return be32_to_cpu(qpc->srqn) & 0x1ffffff; | |
1738 | } | |
1739 | ||
1740 | int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave, | |
1741 | struct mlx4_vhcr *vhcr, | |
1742 | struct mlx4_cmd_mailbox *inbox, | |
1743 | struct mlx4_cmd_mailbox *outbox, | |
1744 | struct mlx4_cmd_info *cmd) | |
1745 | { | |
1746 | int err; | |
1747 | int qpn = vhcr->in_modifier & 0x7fffff; | |
1748 | struct res_mtt *mtt; | |
1749 | struct res_qp *qp; | |
1750 | struct mlx4_qp_context *qpc = inbox->buf + 8; | |
2b8fb286 | 1751 | int mtt_base = qp_get_mtt_addr(qpc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
1752 | int mtt_size = qp_get_mtt_size(qpc); |
1753 | struct res_cq *rcq; | |
1754 | struct res_cq *scq; | |
1755 | int rcqn = qp_get_rcqn(qpc); | |
1756 | int scqn = qp_get_scqn(qpc); | |
1757 | u32 srqn = qp_get_srqn(qpc) & 0xffffff; | |
1758 | int use_srq = (qp_get_srqn(qpc) >> 24) & 1; | |
1759 | struct res_srq *srq; | |
1760 | int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff; | |
1761 | ||
1762 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0); | |
1763 | if (err) | |
1764 | return err; | |
1765 | qp->local_qpn = local_qpn; | |
1766 | ||
2b8fb286 | 1767 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
1768 | if (err) |
1769 | goto ex_abort; | |
1770 | ||
1771 | err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); | |
1772 | if (err) | |
1773 | goto ex_put_mtt; | |
1774 | ||
c82e9aa0 EC |
1775 | err = get_res(dev, slave, rcqn, RES_CQ, &rcq); |
1776 | if (err) | |
1777 | goto ex_put_mtt; | |
1778 | ||
1779 | if (scqn != rcqn) { | |
1780 | err = get_res(dev, slave, scqn, RES_CQ, &scq); | |
1781 | if (err) | |
1782 | goto ex_put_rcq; | |
1783 | } else | |
1784 | scq = rcq; | |
1785 | ||
1786 | if (use_srq) { | |
1787 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); | |
1788 | if (err) | |
1789 | goto ex_put_scq; | |
1790 | } | |
1791 | ||
1792 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1793 | if (err) | |
1794 | goto ex_put_srq; | |
1795 | atomic_inc(&mtt->ref_count); | |
1796 | qp->mtt = mtt; | |
1797 | atomic_inc(&rcq->ref_count); | |
1798 | qp->rcq = rcq; | |
1799 | atomic_inc(&scq->ref_count); | |
1800 | qp->scq = scq; | |
1801 | ||
1802 | if (scqn != rcqn) | |
1803 | put_res(dev, slave, scqn, RES_CQ); | |
1804 | ||
1805 | if (use_srq) { | |
1806 | atomic_inc(&srq->ref_count); | |
1807 | put_res(dev, slave, srqn, RES_SRQ); | |
1808 | qp->srq = srq; | |
1809 | } | |
1810 | put_res(dev, slave, rcqn, RES_CQ); | |
2b8fb286 | 1811 | put_res(dev, slave, mtt_base, RES_MTT); |
c82e9aa0 EC |
1812 | res_end_move(dev, slave, RES_QP, qpn); |
1813 | ||
1814 | return 0; | |
1815 | ||
1816 | ex_put_srq: | |
1817 | if (use_srq) | |
1818 | put_res(dev, slave, srqn, RES_SRQ); | |
1819 | ex_put_scq: | |
1820 | if (scqn != rcqn) | |
1821 | put_res(dev, slave, scqn, RES_CQ); | |
1822 | ex_put_rcq: | |
1823 | put_res(dev, slave, rcqn, RES_CQ); | |
1824 | ex_put_mtt: | |
2b8fb286 | 1825 | put_res(dev, slave, mtt_base, RES_MTT); |
c82e9aa0 EC |
1826 | ex_abort: |
1827 | res_abort_move(dev, slave, RES_QP, qpn); | |
1828 | ||
1829 | return err; | |
1830 | } | |
1831 | ||
2b8fb286 | 1832 | static int eq_get_mtt_addr(struct mlx4_eq_context *eqc) |
c82e9aa0 EC |
1833 | { |
1834 | return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8; | |
1835 | } | |
1836 | ||
1837 | static int eq_get_mtt_size(struct mlx4_eq_context *eqc) | |
1838 | { | |
1839 | int log_eq_size = eqc->log_eq_size & 0x1f; | |
1840 | int page_shift = (eqc->log_page_size & 0x3f) + 12; | |
1841 | ||
1842 | if (log_eq_size + 5 < page_shift) | |
1843 | return 1; | |
1844 | ||
1845 | return 1 << (log_eq_size + 5 - page_shift); | |
1846 | } | |
1847 | ||
2b8fb286 | 1848 | static int cq_get_mtt_addr(struct mlx4_cq_context *cqc) |
c82e9aa0 EC |
1849 | { |
1850 | return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8; | |
1851 | } | |
1852 | ||
1853 | static int cq_get_mtt_size(struct mlx4_cq_context *cqc) | |
1854 | { | |
1855 | int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f; | |
1856 | int page_shift = (cqc->log_page_size & 0x3f) + 12; | |
1857 | ||
1858 | if (log_cq_size + 5 < page_shift) | |
1859 | return 1; | |
1860 | ||
1861 | return 1 << (log_cq_size + 5 - page_shift); | |
1862 | } | |
1863 | ||
1864 | int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave, | |
1865 | struct mlx4_vhcr *vhcr, | |
1866 | struct mlx4_cmd_mailbox *inbox, | |
1867 | struct mlx4_cmd_mailbox *outbox, | |
1868 | struct mlx4_cmd_info *cmd) | |
1869 | { | |
1870 | int err; | |
1871 | int eqn = vhcr->in_modifier; | |
1872 | int res_id = (slave << 8) | eqn; | |
1873 | struct mlx4_eq_context *eqc = inbox->buf; | |
2b8fb286 | 1874 | int mtt_base = eq_get_mtt_addr(eqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
1875 | int mtt_size = eq_get_mtt_size(eqc); |
1876 | struct res_eq *eq; | |
1877 | struct res_mtt *mtt; | |
1878 | ||
1879 | err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0); | |
1880 | if (err) | |
1881 | return err; | |
1882 | err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq); | |
1883 | if (err) | |
1884 | goto out_add; | |
1885 | ||
2b8fb286 | 1886 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
1887 | if (err) |
1888 | goto out_move; | |
1889 | ||
1890 | err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); | |
1891 | if (err) | |
1892 | goto out_put; | |
1893 | ||
1894 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1895 | if (err) | |
1896 | goto out_put; | |
1897 | ||
1898 | atomic_inc(&mtt->ref_count); | |
1899 | eq->mtt = mtt; | |
1900 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
1901 | res_end_move(dev, slave, RES_EQ, res_id); | |
1902 | return 0; | |
1903 | ||
1904 | out_put: | |
1905 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
1906 | out_move: | |
1907 | res_abort_move(dev, slave, RES_EQ, res_id); | |
1908 | out_add: | |
1909 | rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); | |
1910 | return err; | |
1911 | } | |
1912 | ||
1913 | static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start, | |
1914 | int len, struct res_mtt **res) | |
1915 | { | |
1916 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1917 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1918 | struct res_mtt *mtt; | |
1919 | int err = -EINVAL; | |
1920 | ||
1921 | spin_lock_irq(mlx4_tlock(dev)); | |
1922 | list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT], | |
1923 | com.list) { | |
1924 | if (!check_mtt_range(dev, slave, start, len, mtt)) { | |
1925 | *res = mtt; | |
1926 | mtt->com.from_state = mtt->com.state; | |
1927 | mtt->com.state = RES_MTT_BUSY; | |
1928 | err = 0; | |
1929 | break; | |
1930 | } | |
1931 | } | |
1932 | spin_unlock_irq(mlx4_tlock(dev)); | |
1933 | ||
1934 | return err; | |
1935 | } | |
1936 | ||
1937 | int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave, | |
1938 | struct mlx4_vhcr *vhcr, | |
1939 | struct mlx4_cmd_mailbox *inbox, | |
1940 | struct mlx4_cmd_mailbox *outbox, | |
1941 | struct mlx4_cmd_info *cmd) | |
1942 | { | |
1943 | struct mlx4_mtt mtt; | |
1944 | __be64 *page_list = inbox->buf; | |
1945 | u64 *pg_list = (u64 *)page_list; | |
1946 | int i; | |
1947 | struct res_mtt *rmtt = NULL; | |
1948 | int start = be64_to_cpu(page_list[0]); | |
1949 | int npages = vhcr->in_modifier; | |
1950 | int err; | |
1951 | ||
1952 | err = get_containing_mtt(dev, slave, start, npages, &rmtt); | |
1953 | if (err) | |
1954 | return err; | |
1955 | ||
1956 | /* Call the SW implementation of write_mtt: | |
1957 | * - Prepare a dummy mtt struct | |
1958 | * - Translate inbox contents to simple addresses in host endianess */ | |
2b8fb286 MA |
1959 | mtt.offset = 0; /* TBD this is broken but I don't handle it since |
1960 | we don't really use it */ | |
c82e9aa0 EC |
1961 | mtt.order = 0; |
1962 | mtt.page_shift = 0; | |
1963 | for (i = 0; i < npages; ++i) | |
1964 | pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL); | |
1965 | ||
1966 | err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages, | |
1967 | ((u64 *)page_list + 2)); | |
1968 | ||
1969 | if (rmtt) | |
1970 | put_res(dev, slave, rmtt->com.res_id, RES_MTT); | |
1971 | ||
1972 | return err; | |
1973 | } | |
1974 | ||
1975 | int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave, | |
1976 | struct mlx4_vhcr *vhcr, | |
1977 | struct mlx4_cmd_mailbox *inbox, | |
1978 | struct mlx4_cmd_mailbox *outbox, | |
1979 | struct mlx4_cmd_info *cmd) | |
1980 | { | |
1981 | int eqn = vhcr->in_modifier; | |
1982 | int res_id = eqn | (slave << 8); | |
1983 | struct res_eq *eq; | |
1984 | int err; | |
1985 | ||
1986 | err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq); | |
1987 | if (err) | |
1988 | return err; | |
1989 | ||
1990 | err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL); | |
1991 | if (err) | |
1992 | goto ex_abort; | |
1993 | ||
1994 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1995 | if (err) | |
1996 | goto ex_put; | |
1997 | ||
1998 | atomic_dec(&eq->mtt->ref_count); | |
1999 | put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); | |
2000 | res_end_move(dev, slave, RES_EQ, res_id); | |
2001 | rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); | |
2002 | ||
2003 | return 0; | |
2004 | ||
2005 | ex_put: | |
2006 | put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); | |
2007 | ex_abort: | |
2008 | res_abort_move(dev, slave, RES_EQ, res_id); | |
2009 | ||
2010 | return err; | |
2011 | } | |
2012 | ||
2013 | int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe) | |
2014 | { | |
2015 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2016 | struct mlx4_slave_event_eq_info *event_eq; | |
2017 | struct mlx4_cmd_mailbox *mailbox; | |
2018 | u32 in_modifier = 0; | |
2019 | int err; | |
2020 | int res_id; | |
2021 | struct res_eq *req; | |
2022 | ||
2023 | if (!priv->mfunc.master.slave_state) | |
2024 | return -EINVAL; | |
2025 | ||
803143fb | 2026 | event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type]; |
c82e9aa0 EC |
2027 | |
2028 | /* Create the event only if the slave is registered */ | |
803143fb | 2029 | if (event_eq->eqn < 0) |
c82e9aa0 EC |
2030 | return 0; |
2031 | ||
2032 | mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]); | |
2033 | res_id = (slave << 8) | event_eq->eqn; | |
2034 | err = get_res(dev, slave, res_id, RES_EQ, &req); | |
2035 | if (err) | |
2036 | goto unlock; | |
2037 | ||
2038 | if (req->com.from_state != RES_EQ_HW) { | |
2039 | err = -EINVAL; | |
2040 | goto put; | |
2041 | } | |
2042 | ||
2043 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
2044 | if (IS_ERR(mailbox)) { | |
2045 | err = PTR_ERR(mailbox); | |
2046 | goto put; | |
2047 | } | |
2048 | ||
2049 | if (eqe->type == MLX4_EVENT_TYPE_CMD) { | |
2050 | ++event_eq->token; | |
2051 | eqe->event.cmd.token = cpu_to_be16(event_eq->token); | |
2052 | } | |
2053 | ||
2054 | memcpy(mailbox->buf, (u8 *) eqe, 28); | |
2055 | ||
2056 | in_modifier = (slave & 0xff) | ((event_eq->eqn & 0xff) << 16); | |
2057 | ||
2058 | err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0, | |
2059 | MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B, | |
2060 | MLX4_CMD_NATIVE); | |
2061 | ||
2062 | put_res(dev, slave, res_id, RES_EQ); | |
2063 | mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); | |
2064 | mlx4_free_cmd_mailbox(dev, mailbox); | |
2065 | return err; | |
2066 | ||
2067 | put: | |
2068 | put_res(dev, slave, res_id, RES_EQ); | |
2069 | ||
2070 | unlock: | |
2071 | mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); | |
2072 | return err; | |
2073 | } | |
2074 | ||
2075 | int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave, | |
2076 | struct mlx4_vhcr *vhcr, | |
2077 | struct mlx4_cmd_mailbox *inbox, | |
2078 | struct mlx4_cmd_mailbox *outbox, | |
2079 | struct mlx4_cmd_info *cmd) | |
2080 | { | |
2081 | int eqn = vhcr->in_modifier; | |
2082 | int res_id = eqn | (slave << 8); | |
2083 | struct res_eq *eq; | |
2084 | int err; | |
2085 | ||
2086 | err = get_res(dev, slave, res_id, RES_EQ, &eq); | |
2087 | if (err) | |
2088 | return err; | |
2089 | ||
2090 | if (eq->com.from_state != RES_EQ_HW) { | |
2091 | err = -EINVAL; | |
2092 | goto ex_put; | |
2093 | } | |
2094 | ||
2095 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2096 | ||
2097 | ex_put: | |
2098 | put_res(dev, slave, res_id, RES_EQ); | |
2099 | return err; | |
2100 | } | |
2101 | ||
2102 | int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2103 | struct mlx4_vhcr *vhcr, | |
2104 | struct mlx4_cmd_mailbox *inbox, | |
2105 | struct mlx4_cmd_mailbox *outbox, | |
2106 | struct mlx4_cmd_info *cmd) | |
2107 | { | |
2108 | int err; | |
2109 | int cqn = vhcr->in_modifier; | |
2110 | struct mlx4_cq_context *cqc = inbox->buf; | |
2b8fb286 | 2111 | int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
2112 | struct res_cq *cq; |
2113 | struct res_mtt *mtt; | |
2114 | ||
2115 | err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq); | |
2116 | if (err) | |
2117 | return err; | |
2b8fb286 | 2118 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
2119 | if (err) |
2120 | goto out_move; | |
2121 | err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); | |
2122 | if (err) | |
2123 | goto out_put; | |
2124 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2125 | if (err) | |
2126 | goto out_put; | |
2127 | atomic_inc(&mtt->ref_count); | |
2128 | cq->mtt = mtt; | |
2129 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2130 | res_end_move(dev, slave, RES_CQ, cqn); | |
2131 | return 0; | |
2132 | ||
2133 | out_put: | |
2134 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2135 | out_move: | |
2136 | res_abort_move(dev, slave, RES_CQ, cqn); | |
2137 | return err; | |
2138 | } | |
2139 | ||
2140 | int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2141 | struct mlx4_vhcr *vhcr, | |
2142 | struct mlx4_cmd_mailbox *inbox, | |
2143 | struct mlx4_cmd_mailbox *outbox, | |
2144 | struct mlx4_cmd_info *cmd) | |
2145 | { | |
2146 | int err; | |
2147 | int cqn = vhcr->in_modifier; | |
2148 | struct res_cq *cq; | |
2149 | ||
2150 | err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq); | |
2151 | if (err) | |
2152 | return err; | |
2153 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2154 | if (err) | |
2155 | goto out_move; | |
2156 | atomic_dec(&cq->mtt->ref_count); | |
2157 | res_end_move(dev, slave, RES_CQ, cqn); | |
2158 | return 0; | |
2159 | ||
2160 | out_move: | |
2161 | res_abort_move(dev, slave, RES_CQ, cqn); | |
2162 | return err; | |
2163 | } | |
2164 | ||
2165 | int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2166 | struct mlx4_vhcr *vhcr, | |
2167 | struct mlx4_cmd_mailbox *inbox, | |
2168 | struct mlx4_cmd_mailbox *outbox, | |
2169 | struct mlx4_cmd_info *cmd) | |
2170 | { | |
2171 | int cqn = vhcr->in_modifier; | |
2172 | struct res_cq *cq; | |
2173 | int err; | |
2174 | ||
2175 | err = get_res(dev, slave, cqn, RES_CQ, &cq); | |
2176 | if (err) | |
2177 | return err; | |
2178 | ||
2179 | if (cq->com.from_state != RES_CQ_HW) | |
2180 | goto ex_put; | |
2181 | ||
2182 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2183 | ex_put: | |
2184 | put_res(dev, slave, cqn, RES_CQ); | |
2185 | ||
2186 | return err; | |
2187 | } | |
2188 | ||
2189 | static int handle_resize(struct mlx4_dev *dev, int slave, | |
2190 | struct mlx4_vhcr *vhcr, | |
2191 | struct mlx4_cmd_mailbox *inbox, | |
2192 | struct mlx4_cmd_mailbox *outbox, | |
2193 | struct mlx4_cmd_info *cmd, | |
2194 | struct res_cq *cq) | |
2195 | { | |
2196 | int err; | |
2197 | struct res_mtt *orig_mtt; | |
2198 | struct res_mtt *mtt; | |
2199 | struct mlx4_cq_context *cqc = inbox->buf; | |
2b8fb286 | 2200 | int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
2201 | |
2202 | err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt); | |
2203 | if (err) | |
2204 | return err; | |
2205 | ||
2206 | if (orig_mtt != cq->mtt) { | |
2207 | err = -EINVAL; | |
2208 | goto ex_put; | |
2209 | } | |
2210 | ||
2b8fb286 | 2211 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
2212 | if (err) |
2213 | goto ex_put; | |
2214 | ||
2215 | err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); | |
2216 | if (err) | |
2217 | goto ex_put1; | |
2218 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2219 | if (err) | |
2220 | goto ex_put1; | |
2221 | atomic_dec(&orig_mtt->ref_count); | |
2222 | put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); | |
2223 | atomic_inc(&mtt->ref_count); | |
2224 | cq->mtt = mtt; | |
2225 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2226 | return 0; | |
2227 | ||
2228 | ex_put1: | |
2229 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2230 | ex_put: | |
2231 | put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); | |
2232 | ||
2233 | return err; | |
2234 | ||
2235 | } | |
2236 | ||
2237 | int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2238 | struct mlx4_vhcr *vhcr, | |
2239 | struct mlx4_cmd_mailbox *inbox, | |
2240 | struct mlx4_cmd_mailbox *outbox, | |
2241 | struct mlx4_cmd_info *cmd) | |
2242 | { | |
2243 | int cqn = vhcr->in_modifier; | |
2244 | struct res_cq *cq; | |
2245 | int err; | |
2246 | ||
2247 | err = get_res(dev, slave, cqn, RES_CQ, &cq); | |
2248 | if (err) | |
2249 | return err; | |
2250 | ||
2251 | if (cq->com.from_state != RES_CQ_HW) | |
2252 | goto ex_put; | |
2253 | ||
2254 | if (vhcr->op_modifier == 0) { | |
2255 | err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq); | |
2256 | if (err) | |
2257 | goto ex_put; | |
2258 | } | |
2259 | ||
2260 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2261 | ex_put: | |
2262 | put_res(dev, slave, cqn, RES_CQ); | |
2263 | ||
2264 | return err; | |
2265 | } | |
2266 | ||
c82e9aa0 EC |
2267 | static int srq_get_mtt_size(struct mlx4_srq_context *srqc) |
2268 | { | |
2269 | int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf; | |
2270 | int log_rq_stride = srqc->logstride & 7; | |
2271 | int page_shift = (srqc->log_page_size & 0x3f) + 12; | |
2272 | ||
2273 | if (log_srq_size + log_rq_stride + 4 < page_shift) | |
2274 | return 1; | |
2275 | ||
2276 | return 1 << (log_srq_size + log_rq_stride + 4 - page_shift); | |
2277 | } | |
2278 | ||
2279 | int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2280 | struct mlx4_vhcr *vhcr, | |
2281 | struct mlx4_cmd_mailbox *inbox, | |
2282 | struct mlx4_cmd_mailbox *outbox, | |
2283 | struct mlx4_cmd_info *cmd) | |
2284 | { | |
2285 | int err; | |
2286 | int srqn = vhcr->in_modifier; | |
2287 | struct res_mtt *mtt; | |
2288 | struct res_srq *srq; | |
2289 | struct mlx4_srq_context *srqc = inbox->buf; | |
2b8fb286 | 2290 | int mtt_base = srq_get_mtt_addr(srqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
2291 | |
2292 | if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff)) | |
2293 | return -EINVAL; | |
2294 | ||
2295 | err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq); | |
2296 | if (err) | |
2297 | return err; | |
2b8fb286 | 2298 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
2299 | if (err) |
2300 | goto ex_abort; | |
2301 | err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc), | |
2302 | mtt); | |
2303 | if (err) | |
2304 | goto ex_put_mtt; | |
2305 | ||
c82e9aa0 EC |
2306 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
2307 | if (err) | |
2308 | goto ex_put_mtt; | |
2309 | ||
2310 | atomic_inc(&mtt->ref_count); | |
2311 | srq->mtt = mtt; | |
2312 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2313 | res_end_move(dev, slave, RES_SRQ, srqn); | |
2314 | return 0; | |
2315 | ||
2316 | ex_put_mtt: | |
2317 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2318 | ex_abort: | |
2319 | res_abort_move(dev, slave, RES_SRQ, srqn); | |
2320 | ||
2321 | return err; | |
2322 | } | |
2323 | ||
2324 | int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2325 | struct mlx4_vhcr *vhcr, | |
2326 | struct mlx4_cmd_mailbox *inbox, | |
2327 | struct mlx4_cmd_mailbox *outbox, | |
2328 | struct mlx4_cmd_info *cmd) | |
2329 | { | |
2330 | int err; | |
2331 | int srqn = vhcr->in_modifier; | |
2332 | struct res_srq *srq; | |
2333 | ||
2334 | err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq); | |
2335 | if (err) | |
2336 | return err; | |
2337 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2338 | if (err) | |
2339 | goto ex_abort; | |
2340 | atomic_dec(&srq->mtt->ref_count); | |
2341 | if (srq->cq) | |
2342 | atomic_dec(&srq->cq->ref_count); | |
2343 | res_end_move(dev, slave, RES_SRQ, srqn); | |
2344 | ||
2345 | return 0; | |
2346 | ||
2347 | ex_abort: | |
2348 | res_abort_move(dev, slave, RES_SRQ, srqn); | |
2349 | ||
2350 | return err; | |
2351 | } | |
2352 | ||
2353 | int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2354 | struct mlx4_vhcr *vhcr, | |
2355 | struct mlx4_cmd_mailbox *inbox, | |
2356 | struct mlx4_cmd_mailbox *outbox, | |
2357 | struct mlx4_cmd_info *cmd) | |
2358 | { | |
2359 | int err; | |
2360 | int srqn = vhcr->in_modifier; | |
2361 | struct res_srq *srq; | |
2362 | ||
2363 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); | |
2364 | if (err) | |
2365 | return err; | |
2366 | if (srq->com.from_state != RES_SRQ_HW) { | |
2367 | err = -EBUSY; | |
2368 | goto out; | |
2369 | } | |
2370 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2371 | out: | |
2372 | put_res(dev, slave, srqn, RES_SRQ); | |
2373 | return err; | |
2374 | } | |
2375 | ||
2376 | int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2377 | struct mlx4_vhcr *vhcr, | |
2378 | struct mlx4_cmd_mailbox *inbox, | |
2379 | struct mlx4_cmd_mailbox *outbox, | |
2380 | struct mlx4_cmd_info *cmd) | |
2381 | { | |
2382 | int err; | |
2383 | int srqn = vhcr->in_modifier; | |
2384 | struct res_srq *srq; | |
2385 | ||
2386 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); | |
2387 | if (err) | |
2388 | return err; | |
2389 | ||
2390 | if (srq->com.from_state != RES_SRQ_HW) { | |
2391 | err = -EBUSY; | |
2392 | goto out; | |
2393 | } | |
2394 | ||
2395 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2396 | out: | |
2397 | put_res(dev, slave, srqn, RES_SRQ); | |
2398 | return err; | |
2399 | } | |
2400 | ||
2401 | int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave, | |
2402 | struct mlx4_vhcr *vhcr, | |
2403 | struct mlx4_cmd_mailbox *inbox, | |
2404 | struct mlx4_cmd_mailbox *outbox, | |
2405 | struct mlx4_cmd_info *cmd) | |
2406 | { | |
2407 | int err; | |
2408 | int qpn = vhcr->in_modifier & 0x7fffff; | |
2409 | struct res_qp *qp; | |
2410 | ||
2411 | err = get_res(dev, slave, qpn, RES_QP, &qp); | |
2412 | if (err) | |
2413 | return err; | |
2414 | if (qp->com.from_state != RES_QP_HW) { | |
2415 | err = -EBUSY; | |
2416 | goto out; | |
2417 | } | |
2418 | ||
2419 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2420 | out: | |
2421 | put_res(dev, slave, qpn, RES_QP); | |
2422 | return err; | |
2423 | } | |
2424 | ||
2425 | int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave, | |
2426 | struct mlx4_vhcr *vhcr, | |
2427 | struct mlx4_cmd_mailbox *inbox, | |
2428 | struct mlx4_cmd_mailbox *outbox, | |
2429 | struct mlx4_cmd_info *cmd) | |
2430 | { | |
2431 | struct mlx4_qp_context *qpc = inbox->buf + 8; | |
2432 | ||
2433 | update_ud_gid(dev, qpc, (u8)slave); | |
2434 | ||
2435 | return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2436 | } | |
2437 | ||
2438 | int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave, | |
2439 | struct mlx4_vhcr *vhcr, | |
2440 | struct mlx4_cmd_mailbox *inbox, | |
2441 | struct mlx4_cmd_mailbox *outbox, | |
2442 | struct mlx4_cmd_info *cmd) | |
2443 | { | |
2444 | int err; | |
2445 | int qpn = vhcr->in_modifier & 0x7fffff; | |
2446 | struct res_qp *qp; | |
2447 | ||
2448 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0); | |
2449 | if (err) | |
2450 | return err; | |
2451 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2452 | if (err) | |
2453 | goto ex_abort; | |
2454 | ||
2455 | atomic_dec(&qp->mtt->ref_count); | |
2456 | atomic_dec(&qp->rcq->ref_count); | |
2457 | atomic_dec(&qp->scq->ref_count); | |
2458 | if (qp->srq) | |
2459 | atomic_dec(&qp->srq->ref_count); | |
2460 | res_end_move(dev, slave, RES_QP, qpn); | |
2461 | return 0; | |
2462 | ||
2463 | ex_abort: | |
2464 | res_abort_move(dev, slave, RES_QP, qpn); | |
2465 | ||
2466 | return err; | |
2467 | } | |
2468 | ||
2469 | static struct res_gid *find_gid(struct mlx4_dev *dev, int slave, | |
2470 | struct res_qp *rqp, u8 *gid) | |
2471 | { | |
2472 | struct res_gid *res; | |
2473 | ||
2474 | list_for_each_entry(res, &rqp->mcg_list, list) { | |
2475 | if (!memcmp(res->gid, gid, 16)) | |
2476 | return res; | |
2477 | } | |
2478 | return NULL; | |
2479 | } | |
2480 | ||
2481 | static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, | |
2482 | u8 *gid, enum mlx4_protocol prot) | |
2483 | { | |
2484 | struct res_gid *res; | |
2485 | int err; | |
2486 | ||
2487 | res = kzalloc(sizeof *res, GFP_KERNEL); | |
2488 | if (!res) | |
2489 | return -ENOMEM; | |
2490 | ||
2491 | spin_lock_irq(&rqp->mcg_spl); | |
2492 | if (find_gid(dev, slave, rqp, gid)) { | |
2493 | kfree(res); | |
2494 | err = -EEXIST; | |
2495 | } else { | |
2496 | memcpy(res->gid, gid, 16); | |
2497 | res->prot = prot; | |
2498 | list_add_tail(&res->list, &rqp->mcg_list); | |
2499 | err = 0; | |
2500 | } | |
2501 | spin_unlock_irq(&rqp->mcg_spl); | |
2502 | ||
2503 | return err; | |
2504 | } | |
2505 | ||
2506 | static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, | |
2507 | u8 *gid, enum mlx4_protocol prot) | |
2508 | { | |
2509 | struct res_gid *res; | |
2510 | int err; | |
2511 | ||
2512 | spin_lock_irq(&rqp->mcg_spl); | |
2513 | res = find_gid(dev, slave, rqp, gid); | |
2514 | if (!res || res->prot != prot) | |
2515 | err = -EINVAL; | |
2516 | else { | |
2517 | list_del(&res->list); | |
2518 | kfree(res); | |
2519 | err = 0; | |
2520 | } | |
2521 | spin_unlock_irq(&rqp->mcg_spl); | |
2522 | ||
2523 | return err; | |
2524 | } | |
2525 | ||
2526 | int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave, | |
2527 | struct mlx4_vhcr *vhcr, | |
2528 | struct mlx4_cmd_mailbox *inbox, | |
2529 | struct mlx4_cmd_mailbox *outbox, | |
2530 | struct mlx4_cmd_info *cmd) | |
2531 | { | |
2532 | struct mlx4_qp qp; /* dummy for calling attach/detach */ | |
2533 | u8 *gid = inbox->buf; | |
2534 | enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7; | |
2535 | int err, err1; | |
2536 | int qpn; | |
2537 | struct res_qp *rqp; | |
2538 | int attach = vhcr->op_modifier; | |
2539 | int block_loopback = vhcr->in_modifier >> 31; | |
2540 | u8 steer_type_mask = 2; | |
75c6062c | 2541 | enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1; |
c82e9aa0 EC |
2542 | |
2543 | qpn = vhcr->in_modifier & 0xffffff; | |
2544 | err = get_res(dev, slave, qpn, RES_QP, &rqp); | |
2545 | if (err) | |
2546 | return err; | |
2547 | ||
2548 | qp.qpn = qpn; | |
2549 | if (attach) { | |
2550 | err = add_mcg_res(dev, slave, rqp, gid, prot); | |
2551 | if (err) | |
2552 | goto ex_put; | |
2553 | ||
2554 | err = mlx4_qp_attach_common(dev, &qp, gid, | |
2555 | block_loopback, prot, type); | |
2556 | if (err) | |
2557 | goto ex_rem; | |
2558 | } else { | |
2559 | err = rem_mcg_res(dev, slave, rqp, gid, prot); | |
2560 | if (err) | |
2561 | goto ex_put; | |
2562 | err = mlx4_qp_detach_common(dev, &qp, gid, prot, type); | |
2563 | } | |
2564 | ||
2565 | put_res(dev, slave, qpn, RES_QP); | |
2566 | return 0; | |
2567 | ||
2568 | ex_rem: | |
2569 | /* ignore error return below, already in error */ | |
2570 | err1 = rem_mcg_res(dev, slave, rqp, gid, prot); | |
2571 | ex_put: | |
2572 | put_res(dev, slave, qpn, RES_QP); | |
2573 | ||
2574 | return err; | |
2575 | } | |
2576 | ||
2577 | enum { | |
2578 | BUSY_MAX_RETRIES = 10 | |
2579 | }; | |
2580 | ||
2581 | int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave, | |
2582 | struct mlx4_vhcr *vhcr, | |
2583 | struct mlx4_cmd_mailbox *inbox, | |
2584 | struct mlx4_cmd_mailbox *outbox, | |
2585 | struct mlx4_cmd_info *cmd) | |
2586 | { | |
2587 | int err; | |
2588 | int index = vhcr->in_modifier & 0xffff; | |
2589 | ||
2590 | err = get_res(dev, slave, index, RES_COUNTER, NULL); | |
2591 | if (err) | |
2592 | return err; | |
2593 | ||
2594 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2595 | put_res(dev, slave, index, RES_COUNTER); | |
2596 | return err; | |
2597 | } | |
2598 | ||
2599 | static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp) | |
2600 | { | |
2601 | struct res_gid *rgid; | |
2602 | struct res_gid *tmp; | |
2603 | int err; | |
2604 | struct mlx4_qp qp; /* dummy for calling attach/detach */ | |
2605 | ||
2606 | list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) { | |
2607 | qp.qpn = rqp->local_qpn; | |
2608 | err = mlx4_qp_detach_common(dev, &qp, rgid->gid, rgid->prot, | |
2609 | MLX4_MC_STEER); | |
2610 | list_del(&rgid->list); | |
2611 | kfree(rgid); | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | static int _move_all_busy(struct mlx4_dev *dev, int slave, | |
2616 | enum mlx4_resource type, int print) | |
2617 | { | |
2618 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2619 | struct mlx4_resource_tracker *tracker = | |
2620 | &priv->mfunc.master.res_tracker; | |
2621 | struct list_head *rlist = &tracker->slave_list[slave].res_list[type]; | |
2622 | struct res_common *r; | |
2623 | struct res_common *tmp; | |
2624 | int busy; | |
2625 | ||
2626 | busy = 0; | |
2627 | spin_lock_irq(mlx4_tlock(dev)); | |
2628 | list_for_each_entry_safe(r, tmp, rlist, list) { | |
2629 | if (r->owner == slave) { | |
2630 | if (!r->removing) { | |
2631 | if (r->state == RES_ANY_BUSY) { | |
2632 | if (print) | |
2633 | mlx4_dbg(dev, | |
2634 | "%s id 0x%x is busy\n", | |
2635 | ResourceType(type), | |
2636 | r->res_id); | |
2637 | ++busy; | |
2638 | } else { | |
2639 | r->from_state = r->state; | |
2640 | r->state = RES_ANY_BUSY; | |
2641 | r->removing = 1; | |
2642 | } | |
2643 | } | |
2644 | } | |
2645 | } | |
2646 | spin_unlock_irq(mlx4_tlock(dev)); | |
2647 | ||
2648 | return busy; | |
2649 | } | |
2650 | ||
2651 | static int move_all_busy(struct mlx4_dev *dev, int slave, | |
2652 | enum mlx4_resource type) | |
2653 | { | |
2654 | unsigned long begin; | |
2655 | int busy; | |
2656 | ||
2657 | begin = jiffies; | |
2658 | do { | |
2659 | busy = _move_all_busy(dev, slave, type, 0); | |
2660 | if (time_after(jiffies, begin + 5 * HZ)) | |
2661 | break; | |
2662 | if (busy) | |
2663 | cond_resched(); | |
2664 | } while (busy); | |
2665 | ||
2666 | if (busy) | |
2667 | busy = _move_all_busy(dev, slave, type, 1); | |
2668 | ||
2669 | return busy; | |
2670 | } | |
2671 | static void rem_slave_qps(struct mlx4_dev *dev, int slave) | |
2672 | { | |
2673 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2674 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2675 | struct list_head *qp_list = | |
2676 | &tracker->slave_list[slave].res_list[RES_QP]; | |
2677 | struct res_qp *qp; | |
2678 | struct res_qp *tmp; | |
2679 | int state; | |
2680 | u64 in_param; | |
2681 | int qpn; | |
2682 | int err; | |
2683 | ||
2684 | err = move_all_busy(dev, slave, RES_QP); | |
2685 | if (err) | |
2686 | mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy" | |
2687 | "for slave %d\n", slave); | |
2688 | ||
2689 | spin_lock_irq(mlx4_tlock(dev)); | |
2690 | list_for_each_entry_safe(qp, tmp, qp_list, com.list) { | |
2691 | spin_unlock_irq(mlx4_tlock(dev)); | |
2692 | if (qp->com.owner == slave) { | |
2693 | qpn = qp->com.res_id; | |
2694 | detach_qp(dev, slave, qp); | |
2695 | state = qp->com.from_state; | |
2696 | while (state != 0) { | |
2697 | switch (state) { | |
2698 | case RES_QP_RESERVED: | |
2699 | spin_lock_irq(mlx4_tlock(dev)); | |
2700 | radix_tree_delete(&tracker->res_tree[RES_QP], | |
2701 | qp->com.res_id); | |
2702 | list_del(&qp->com.list); | |
2703 | spin_unlock_irq(mlx4_tlock(dev)); | |
2704 | kfree(qp); | |
2705 | state = 0; | |
2706 | break; | |
2707 | case RES_QP_MAPPED: | |
2708 | if (!valid_reserved(dev, slave, qpn)) | |
2709 | __mlx4_qp_free_icm(dev, qpn); | |
2710 | state = RES_QP_RESERVED; | |
2711 | break; | |
2712 | case RES_QP_HW: | |
2713 | in_param = slave; | |
2714 | err = mlx4_cmd(dev, in_param, | |
2715 | qp->local_qpn, 2, | |
2716 | MLX4_CMD_2RST_QP, | |
2717 | MLX4_CMD_TIME_CLASS_A, | |
2718 | MLX4_CMD_NATIVE); | |
2719 | if (err) | |
2720 | mlx4_dbg(dev, "rem_slave_qps: failed" | |
2721 | " to move slave %d qpn %d to" | |
2722 | " reset\n", slave, | |
2723 | qp->local_qpn); | |
2724 | atomic_dec(&qp->rcq->ref_count); | |
2725 | atomic_dec(&qp->scq->ref_count); | |
2726 | atomic_dec(&qp->mtt->ref_count); | |
2727 | if (qp->srq) | |
2728 | atomic_dec(&qp->srq->ref_count); | |
2729 | state = RES_QP_MAPPED; | |
2730 | break; | |
2731 | default: | |
2732 | state = 0; | |
2733 | } | |
2734 | } | |
2735 | } | |
2736 | spin_lock_irq(mlx4_tlock(dev)); | |
2737 | } | |
2738 | spin_unlock_irq(mlx4_tlock(dev)); | |
2739 | } | |
2740 | ||
2741 | static void rem_slave_srqs(struct mlx4_dev *dev, int slave) | |
2742 | { | |
2743 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2744 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2745 | struct list_head *srq_list = | |
2746 | &tracker->slave_list[slave].res_list[RES_SRQ]; | |
2747 | struct res_srq *srq; | |
2748 | struct res_srq *tmp; | |
2749 | int state; | |
2750 | u64 in_param; | |
2751 | LIST_HEAD(tlist); | |
2752 | int srqn; | |
2753 | int err; | |
2754 | ||
2755 | err = move_all_busy(dev, slave, RES_SRQ); | |
2756 | if (err) | |
2757 | mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs to " | |
2758 | "busy for slave %d\n", slave); | |
2759 | ||
2760 | spin_lock_irq(mlx4_tlock(dev)); | |
2761 | list_for_each_entry_safe(srq, tmp, srq_list, com.list) { | |
2762 | spin_unlock_irq(mlx4_tlock(dev)); | |
2763 | if (srq->com.owner == slave) { | |
2764 | srqn = srq->com.res_id; | |
2765 | state = srq->com.from_state; | |
2766 | while (state != 0) { | |
2767 | switch (state) { | |
2768 | case RES_SRQ_ALLOCATED: | |
2769 | __mlx4_srq_free_icm(dev, srqn); | |
2770 | spin_lock_irq(mlx4_tlock(dev)); | |
2771 | radix_tree_delete(&tracker->res_tree[RES_SRQ], | |
2772 | srqn); | |
2773 | list_del(&srq->com.list); | |
2774 | spin_unlock_irq(mlx4_tlock(dev)); | |
2775 | kfree(srq); | |
2776 | state = 0; | |
2777 | break; | |
2778 | ||
2779 | case RES_SRQ_HW: | |
2780 | in_param = slave; | |
2781 | err = mlx4_cmd(dev, in_param, srqn, 1, | |
2782 | MLX4_CMD_HW2SW_SRQ, | |
2783 | MLX4_CMD_TIME_CLASS_A, | |
2784 | MLX4_CMD_NATIVE); | |
2785 | if (err) | |
2786 | mlx4_dbg(dev, "rem_slave_srqs: failed" | |
2787 | " to move slave %d srq %d to" | |
2788 | " SW ownership\n", | |
2789 | slave, srqn); | |
2790 | ||
2791 | atomic_dec(&srq->mtt->ref_count); | |
2792 | if (srq->cq) | |
2793 | atomic_dec(&srq->cq->ref_count); | |
2794 | state = RES_SRQ_ALLOCATED; | |
2795 | break; | |
2796 | ||
2797 | default: | |
2798 | state = 0; | |
2799 | } | |
2800 | } | |
2801 | } | |
2802 | spin_lock_irq(mlx4_tlock(dev)); | |
2803 | } | |
2804 | spin_unlock_irq(mlx4_tlock(dev)); | |
2805 | } | |
2806 | ||
2807 | static void rem_slave_cqs(struct mlx4_dev *dev, int slave) | |
2808 | { | |
2809 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2810 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2811 | struct list_head *cq_list = | |
2812 | &tracker->slave_list[slave].res_list[RES_CQ]; | |
2813 | struct res_cq *cq; | |
2814 | struct res_cq *tmp; | |
2815 | int state; | |
2816 | u64 in_param; | |
2817 | LIST_HEAD(tlist); | |
2818 | int cqn; | |
2819 | int err; | |
2820 | ||
2821 | err = move_all_busy(dev, slave, RES_CQ); | |
2822 | if (err) | |
2823 | mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs to " | |
2824 | "busy for slave %d\n", slave); | |
2825 | ||
2826 | spin_lock_irq(mlx4_tlock(dev)); | |
2827 | list_for_each_entry_safe(cq, tmp, cq_list, com.list) { | |
2828 | spin_unlock_irq(mlx4_tlock(dev)); | |
2829 | if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) { | |
2830 | cqn = cq->com.res_id; | |
2831 | state = cq->com.from_state; | |
2832 | while (state != 0) { | |
2833 | switch (state) { | |
2834 | case RES_CQ_ALLOCATED: | |
2835 | __mlx4_cq_free_icm(dev, cqn); | |
2836 | spin_lock_irq(mlx4_tlock(dev)); | |
2837 | radix_tree_delete(&tracker->res_tree[RES_CQ], | |
2838 | cqn); | |
2839 | list_del(&cq->com.list); | |
2840 | spin_unlock_irq(mlx4_tlock(dev)); | |
2841 | kfree(cq); | |
2842 | state = 0; | |
2843 | break; | |
2844 | ||
2845 | case RES_CQ_HW: | |
2846 | in_param = slave; | |
2847 | err = mlx4_cmd(dev, in_param, cqn, 1, | |
2848 | MLX4_CMD_HW2SW_CQ, | |
2849 | MLX4_CMD_TIME_CLASS_A, | |
2850 | MLX4_CMD_NATIVE); | |
2851 | if (err) | |
2852 | mlx4_dbg(dev, "rem_slave_cqs: failed" | |
2853 | " to move slave %d cq %d to" | |
2854 | " SW ownership\n", | |
2855 | slave, cqn); | |
2856 | atomic_dec(&cq->mtt->ref_count); | |
2857 | state = RES_CQ_ALLOCATED; | |
2858 | break; | |
2859 | ||
2860 | default: | |
2861 | state = 0; | |
2862 | } | |
2863 | } | |
2864 | } | |
2865 | spin_lock_irq(mlx4_tlock(dev)); | |
2866 | } | |
2867 | spin_unlock_irq(mlx4_tlock(dev)); | |
2868 | } | |
2869 | ||
2870 | static void rem_slave_mrs(struct mlx4_dev *dev, int slave) | |
2871 | { | |
2872 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2873 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2874 | struct list_head *mpt_list = | |
2875 | &tracker->slave_list[slave].res_list[RES_MPT]; | |
2876 | struct res_mpt *mpt; | |
2877 | struct res_mpt *tmp; | |
2878 | int state; | |
2879 | u64 in_param; | |
2880 | LIST_HEAD(tlist); | |
2881 | int mptn; | |
2882 | int err; | |
2883 | ||
2884 | err = move_all_busy(dev, slave, RES_MPT); | |
2885 | if (err) | |
2886 | mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts to " | |
2887 | "busy for slave %d\n", slave); | |
2888 | ||
2889 | spin_lock_irq(mlx4_tlock(dev)); | |
2890 | list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) { | |
2891 | spin_unlock_irq(mlx4_tlock(dev)); | |
2892 | if (mpt->com.owner == slave) { | |
2893 | mptn = mpt->com.res_id; | |
2894 | state = mpt->com.from_state; | |
2895 | while (state != 0) { | |
2896 | switch (state) { | |
2897 | case RES_MPT_RESERVED: | |
2898 | __mlx4_mr_release(dev, mpt->key); | |
2899 | spin_lock_irq(mlx4_tlock(dev)); | |
2900 | radix_tree_delete(&tracker->res_tree[RES_MPT], | |
2901 | mptn); | |
2902 | list_del(&mpt->com.list); | |
2903 | spin_unlock_irq(mlx4_tlock(dev)); | |
2904 | kfree(mpt); | |
2905 | state = 0; | |
2906 | break; | |
2907 | ||
2908 | case RES_MPT_MAPPED: | |
2909 | __mlx4_mr_free_icm(dev, mpt->key); | |
2910 | state = RES_MPT_RESERVED; | |
2911 | break; | |
2912 | ||
2913 | case RES_MPT_HW: | |
2914 | in_param = slave; | |
2915 | err = mlx4_cmd(dev, in_param, mptn, 0, | |
2916 | MLX4_CMD_HW2SW_MPT, | |
2917 | MLX4_CMD_TIME_CLASS_A, | |
2918 | MLX4_CMD_NATIVE); | |
2919 | if (err) | |
2920 | mlx4_dbg(dev, "rem_slave_mrs: failed" | |
2921 | " to move slave %d mpt %d to" | |
2922 | " SW ownership\n", | |
2923 | slave, mptn); | |
2924 | if (mpt->mtt) | |
2925 | atomic_dec(&mpt->mtt->ref_count); | |
2926 | state = RES_MPT_MAPPED; | |
2927 | break; | |
2928 | default: | |
2929 | state = 0; | |
2930 | } | |
2931 | } | |
2932 | } | |
2933 | spin_lock_irq(mlx4_tlock(dev)); | |
2934 | } | |
2935 | spin_unlock_irq(mlx4_tlock(dev)); | |
2936 | } | |
2937 | ||
2938 | static void rem_slave_mtts(struct mlx4_dev *dev, int slave) | |
2939 | { | |
2940 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2941 | struct mlx4_resource_tracker *tracker = | |
2942 | &priv->mfunc.master.res_tracker; | |
2943 | struct list_head *mtt_list = | |
2944 | &tracker->slave_list[slave].res_list[RES_MTT]; | |
2945 | struct res_mtt *mtt; | |
2946 | struct res_mtt *tmp; | |
2947 | int state; | |
2948 | LIST_HEAD(tlist); | |
2949 | int base; | |
2950 | int err; | |
2951 | ||
2952 | err = move_all_busy(dev, slave, RES_MTT); | |
2953 | if (err) | |
2954 | mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts to " | |
2955 | "busy for slave %d\n", slave); | |
2956 | ||
2957 | spin_lock_irq(mlx4_tlock(dev)); | |
2958 | list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) { | |
2959 | spin_unlock_irq(mlx4_tlock(dev)); | |
2960 | if (mtt->com.owner == slave) { | |
2961 | base = mtt->com.res_id; | |
2962 | state = mtt->com.from_state; | |
2963 | while (state != 0) { | |
2964 | switch (state) { | |
2965 | case RES_MTT_ALLOCATED: | |
2966 | __mlx4_free_mtt_range(dev, base, | |
2967 | mtt->order); | |
2968 | spin_lock_irq(mlx4_tlock(dev)); | |
2969 | radix_tree_delete(&tracker->res_tree[RES_MTT], | |
2970 | base); | |
2971 | list_del(&mtt->com.list); | |
2972 | spin_unlock_irq(mlx4_tlock(dev)); | |
2973 | kfree(mtt); | |
2974 | state = 0; | |
2975 | break; | |
2976 | ||
2977 | default: | |
2978 | state = 0; | |
2979 | } | |
2980 | } | |
2981 | } | |
2982 | spin_lock_irq(mlx4_tlock(dev)); | |
2983 | } | |
2984 | spin_unlock_irq(mlx4_tlock(dev)); | |
2985 | } | |
2986 | ||
2987 | static void rem_slave_eqs(struct mlx4_dev *dev, int slave) | |
2988 | { | |
2989 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2990 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2991 | struct list_head *eq_list = | |
2992 | &tracker->slave_list[slave].res_list[RES_EQ]; | |
2993 | struct res_eq *eq; | |
2994 | struct res_eq *tmp; | |
2995 | int err; | |
2996 | int state; | |
2997 | LIST_HEAD(tlist); | |
2998 | int eqn; | |
2999 | struct mlx4_cmd_mailbox *mailbox; | |
3000 | ||
3001 | err = move_all_busy(dev, slave, RES_EQ); | |
3002 | if (err) | |
3003 | mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs to " | |
3004 | "busy for slave %d\n", slave); | |
3005 | ||
3006 | spin_lock_irq(mlx4_tlock(dev)); | |
3007 | list_for_each_entry_safe(eq, tmp, eq_list, com.list) { | |
3008 | spin_unlock_irq(mlx4_tlock(dev)); | |
3009 | if (eq->com.owner == slave) { | |
3010 | eqn = eq->com.res_id; | |
3011 | state = eq->com.from_state; | |
3012 | while (state != 0) { | |
3013 | switch (state) { | |
3014 | case RES_EQ_RESERVED: | |
3015 | spin_lock_irq(mlx4_tlock(dev)); | |
3016 | radix_tree_delete(&tracker->res_tree[RES_EQ], | |
3017 | eqn); | |
3018 | list_del(&eq->com.list); | |
3019 | spin_unlock_irq(mlx4_tlock(dev)); | |
3020 | kfree(eq); | |
3021 | state = 0; | |
3022 | break; | |
3023 | ||
3024 | case RES_EQ_HW: | |
3025 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
3026 | if (IS_ERR(mailbox)) { | |
3027 | cond_resched(); | |
3028 | continue; | |
3029 | } | |
3030 | err = mlx4_cmd_box(dev, slave, 0, | |
3031 | eqn & 0xff, 0, | |
3032 | MLX4_CMD_HW2SW_EQ, | |
3033 | MLX4_CMD_TIME_CLASS_A, | |
3034 | MLX4_CMD_NATIVE); | |
3035 | mlx4_dbg(dev, "rem_slave_eqs: failed" | |
3036 | " to move slave %d eqs %d to" | |
3037 | " SW ownership\n", slave, eqn); | |
3038 | mlx4_free_cmd_mailbox(dev, mailbox); | |
3039 | if (!err) { | |
3040 | atomic_dec(&eq->mtt->ref_count); | |
3041 | state = RES_EQ_RESERVED; | |
3042 | } | |
3043 | break; | |
3044 | ||
3045 | default: | |
3046 | state = 0; | |
3047 | } | |
3048 | } | |
3049 | } | |
3050 | spin_lock_irq(mlx4_tlock(dev)); | |
3051 | } | |
3052 | spin_unlock_irq(mlx4_tlock(dev)); | |
3053 | } | |
3054 | ||
3055 | void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) | |
3056 | { | |
3057 | struct mlx4_priv *priv = mlx4_priv(dev); | |
3058 | ||
3059 | mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); | |
3060 | /*VLAN*/ | |
3061 | rem_slave_macs(dev, slave); | |
3062 | rem_slave_qps(dev, slave); | |
3063 | rem_slave_srqs(dev, slave); | |
3064 | rem_slave_cqs(dev, slave); | |
3065 | rem_slave_mrs(dev, slave); | |
3066 | rem_slave_eqs(dev, slave); | |
3067 | rem_slave_mtts(dev, slave); | |
3068 | mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); | |
3069 | } |