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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; | |
4af1c048 | 60 | struct rb_node node; |
aa1ec3dd | 61 | u64 res_id; |
c82e9aa0 EC |
62 | int owner; |
63 | int state; | |
64 | int from_state; | |
65 | int to_state; | |
66 | int removing; | |
67 | }; | |
68 | ||
69 | enum { | |
70 | RES_ANY_BUSY = 1 | |
71 | }; | |
72 | ||
73 | struct res_gid { | |
74 | struct list_head list; | |
75 | u8 gid[16]; | |
76 | enum mlx4_protocol prot; | |
9f5b6c63 | 77 | enum mlx4_steer_type steer; |
c82e9aa0 EC |
78 | }; |
79 | ||
80 | enum res_qp_states { | |
81 | RES_QP_BUSY = RES_ANY_BUSY, | |
82 | ||
83 | /* QP number was allocated */ | |
84 | RES_QP_RESERVED, | |
85 | ||
86 | /* ICM memory for QP context was mapped */ | |
87 | RES_QP_MAPPED, | |
88 | ||
89 | /* QP is in hw ownership */ | |
90 | RES_QP_HW | |
91 | }; | |
92 | ||
c82e9aa0 EC |
93 | struct res_qp { |
94 | struct res_common com; | |
95 | struct res_mtt *mtt; | |
96 | struct res_cq *rcq; | |
97 | struct res_cq *scq; | |
98 | struct res_srq *srq; | |
99 | struct list_head mcg_list; | |
100 | spinlock_t mcg_spl; | |
101 | int local_qpn; | |
102 | }; | |
103 | ||
104 | enum res_mtt_states { | |
105 | RES_MTT_BUSY = RES_ANY_BUSY, | |
106 | RES_MTT_ALLOCATED, | |
107 | }; | |
108 | ||
109 | static inline const char *mtt_states_str(enum res_mtt_states state) | |
110 | { | |
111 | switch (state) { | |
112 | case RES_MTT_BUSY: return "RES_MTT_BUSY"; | |
113 | case RES_MTT_ALLOCATED: return "RES_MTT_ALLOCATED"; | |
114 | default: return "Unknown"; | |
115 | } | |
116 | } | |
117 | ||
118 | struct res_mtt { | |
119 | struct res_common com; | |
120 | int order; | |
121 | atomic_t ref_count; | |
122 | }; | |
123 | ||
124 | enum res_mpt_states { | |
125 | RES_MPT_BUSY = RES_ANY_BUSY, | |
126 | RES_MPT_RESERVED, | |
127 | RES_MPT_MAPPED, | |
128 | RES_MPT_HW, | |
129 | }; | |
130 | ||
131 | struct res_mpt { | |
132 | struct res_common com; | |
133 | struct res_mtt *mtt; | |
134 | int key; | |
135 | }; | |
136 | ||
137 | enum res_eq_states { | |
138 | RES_EQ_BUSY = RES_ANY_BUSY, | |
139 | RES_EQ_RESERVED, | |
140 | RES_EQ_HW, | |
141 | }; | |
142 | ||
143 | struct res_eq { | |
144 | struct res_common com; | |
145 | struct res_mtt *mtt; | |
146 | }; | |
147 | ||
148 | enum res_cq_states { | |
149 | RES_CQ_BUSY = RES_ANY_BUSY, | |
150 | RES_CQ_ALLOCATED, | |
151 | RES_CQ_HW, | |
152 | }; | |
153 | ||
154 | struct res_cq { | |
155 | struct res_common com; | |
156 | struct res_mtt *mtt; | |
157 | atomic_t ref_count; | |
158 | }; | |
159 | ||
160 | enum res_srq_states { | |
161 | RES_SRQ_BUSY = RES_ANY_BUSY, | |
162 | RES_SRQ_ALLOCATED, | |
163 | RES_SRQ_HW, | |
164 | }; | |
165 | ||
c82e9aa0 EC |
166 | struct res_srq { |
167 | struct res_common com; | |
168 | struct res_mtt *mtt; | |
169 | struct res_cq *cq; | |
170 | atomic_t ref_count; | |
171 | }; | |
172 | ||
173 | enum res_counter_states { | |
174 | RES_COUNTER_BUSY = RES_ANY_BUSY, | |
175 | RES_COUNTER_ALLOCATED, | |
176 | }; | |
177 | ||
c82e9aa0 EC |
178 | struct res_counter { |
179 | struct res_common com; | |
180 | int port; | |
181 | }; | |
182 | ||
ba062d52 JM |
183 | enum res_xrcdn_states { |
184 | RES_XRCD_BUSY = RES_ANY_BUSY, | |
185 | RES_XRCD_ALLOCATED, | |
186 | }; | |
187 | ||
188 | struct res_xrcdn { | |
189 | struct res_common com; | |
190 | int port; | |
191 | }; | |
192 | ||
4af1c048 HHZ |
193 | static void *res_tracker_lookup(struct rb_root *root, u64 res_id) |
194 | { | |
195 | struct rb_node *node = root->rb_node; | |
196 | ||
197 | while (node) { | |
198 | struct res_common *res = container_of(node, struct res_common, | |
199 | node); | |
200 | ||
201 | if (res_id < res->res_id) | |
202 | node = node->rb_left; | |
203 | else if (res_id > res->res_id) | |
204 | node = node->rb_right; | |
205 | else | |
206 | return res; | |
207 | } | |
208 | return NULL; | |
209 | } | |
210 | ||
211 | static int res_tracker_insert(struct rb_root *root, struct res_common *res) | |
212 | { | |
213 | struct rb_node **new = &(root->rb_node), *parent = NULL; | |
214 | ||
215 | /* Figure out where to put new node */ | |
216 | while (*new) { | |
217 | struct res_common *this = container_of(*new, struct res_common, | |
218 | node); | |
219 | ||
220 | parent = *new; | |
221 | if (res->res_id < this->res_id) | |
222 | new = &((*new)->rb_left); | |
223 | else if (res->res_id > this->res_id) | |
224 | new = &((*new)->rb_right); | |
225 | else | |
226 | return -EEXIST; | |
227 | } | |
228 | ||
229 | /* Add new node and rebalance tree. */ | |
230 | rb_link_node(&res->node, parent, new); | |
231 | rb_insert_color(&res->node, root); | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
c82e9aa0 EC |
236 | /* For Debug uses */ |
237 | static const char *ResourceType(enum mlx4_resource rt) | |
238 | { | |
239 | switch (rt) { | |
240 | case RES_QP: return "RES_QP"; | |
241 | case RES_CQ: return "RES_CQ"; | |
242 | case RES_SRQ: return "RES_SRQ"; | |
243 | case RES_MPT: return "RES_MPT"; | |
244 | case RES_MTT: return "RES_MTT"; | |
245 | case RES_MAC: return "RES_MAC"; | |
246 | case RES_EQ: return "RES_EQ"; | |
247 | case RES_COUNTER: return "RES_COUNTER"; | |
ba062d52 | 248 | case RES_XRCD: return "RES_XRCD"; |
c82e9aa0 EC |
249 | default: return "Unknown resource type !!!"; |
250 | }; | |
251 | } | |
252 | ||
c82e9aa0 EC |
253 | int mlx4_init_resource_tracker(struct mlx4_dev *dev) |
254 | { | |
255 | struct mlx4_priv *priv = mlx4_priv(dev); | |
256 | int i; | |
257 | int t; | |
258 | ||
259 | priv->mfunc.master.res_tracker.slave_list = | |
260 | kzalloc(dev->num_slaves * sizeof(struct slave_list), | |
261 | GFP_KERNEL); | |
262 | if (!priv->mfunc.master.res_tracker.slave_list) | |
263 | return -ENOMEM; | |
264 | ||
265 | for (i = 0 ; i < dev->num_slaves; i++) { | |
266 | for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t) | |
267 | INIT_LIST_HEAD(&priv->mfunc.master.res_tracker. | |
268 | slave_list[i].res_list[t]); | |
269 | mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex); | |
270 | } | |
271 | ||
272 | mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n", | |
273 | dev->num_slaves); | |
274 | for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) | |
4af1c048 | 275 | priv->mfunc.master.res_tracker.res_tree[i] = RB_ROOT; |
c82e9aa0 EC |
276 | |
277 | spin_lock_init(&priv->mfunc.master.res_tracker.lock); | |
278 | return 0 ; | |
279 | } | |
280 | ||
b8924951 JM |
281 | void mlx4_free_resource_tracker(struct mlx4_dev *dev, |
282 | enum mlx4_res_tracker_free_type type) | |
c82e9aa0 EC |
283 | { |
284 | struct mlx4_priv *priv = mlx4_priv(dev); | |
285 | int i; | |
286 | ||
287 | if (priv->mfunc.master.res_tracker.slave_list) { | |
b8924951 JM |
288 | if (type != RES_TR_FREE_STRUCTS_ONLY) |
289 | for (i = 0 ; i < dev->num_slaves; i++) | |
290 | if (type == RES_TR_FREE_ALL || | |
291 | dev->caps.function != i) | |
292 | mlx4_delete_all_resources_for_slave(dev, i); | |
293 | ||
294 | if (type != RES_TR_FREE_SLAVES_ONLY) { | |
295 | kfree(priv->mfunc.master.res_tracker.slave_list); | |
296 | priv->mfunc.master.res_tracker.slave_list = NULL; | |
297 | } | |
c82e9aa0 EC |
298 | } |
299 | } | |
300 | ||
301 | static void update_ud_gid(struct mlx4_dev *dev, | |
302 | struct mlx4_qp_context *qp_ctx, u8 slave) | |
303 | { | |
304 | u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; | |
305 | ||
306 | if (MLX4_QP_ST_UD == ts) | |
307 | qp_ctx->pri_path.mgid_index = 0x80 | slave; | |
308 | ||
309 | mlx4_dbg(dev, "slave %d, new gid index: 0x%x ", | |
310 | slave, qp_ctx->pri_path.mgid_index); | |
311 | } | |
312 | ||
313 | static int mpt_mask(struct mlx4_dev *dev) | |
314 | { | |
315 | return dev->caps.num_mpts - 1; | |
316 | } | |
317 | ||
318 | static void *find_res(struct mlx4_dev *dev, int res_id, | |
319 | enum mlx4_resource type) | |
320 | { | |
321 | struct mlx4_priv *priv = mlx4_priv(dev); | |
322 | ||
4af1c048 HHZ |
323 | return res_tracker_lookup(&priv->mfunc.master.res_tracker.res_tree[type], |
324 | res_id); | |
c82e9aa0 EC |
325 | } |
326 | ||
aa1ec3dd | 327 | static int get_res(struct mlx4_dev *dev, int slave, u64 res_id, |
c82e9aa0 EC |
328 | enum mlx4_resource type, |
329 | void *res) | |
330 | { | |
331 | struct res_common *r; | |
332 | int err = 0; | |
333 | ||
334 | spin_lock_irq(mlx4_tlock(dev)); | |
335 | r = find_res(dev, res_id, type); | |
336 | if (!r) { | |
337 | err = -ENONET; | |
338 | goto exit; | |
339 | } | |
340 | ||
341 | if (r->state == RES_ANY_BUSY) { | |
342 | err = -EBUSY; | |
343 | goto exit; | |
344 | } | |
345 | ||
346 | if (r->owner != slave) { | |
347 | err = -EPERM; | |
348 | goto exit; | |
349 | } | |
350 | ||
351 | r->from_state = r->state; | |
352 | r->state = RES_ANY_BUSY; | |
aa1ec3dd | 353 | mlx4_dbg(dev, "res %s id 0x%llx to busy\n", |
c82e9aa0 EC |
354 | ResourceType(type), r->res_id); |
355 | ||
356 | if (res) | |
357 | *((struct res_common **)res) = r; | |
358 | ||
359 | exit: | |
360 | spin_unlock_irq(mlx4_tlock(dev)); | |
361 | return err; | |
362 | } | |
363 | ||
364 | int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev, | |
365 | enum mlx4_resource type, | |
aa1ec3dd | 366 | u64 res_id, int *slave) |
c82e9aa0 EC |
367 | { |
368 | ||
369 | struct res_common *r; | |
370 | int err = -ENOENT; | |
371 | int id = res_id; | |
372 | ||
373 | if (type == RES_QP) | |
374 | id &= 0x7fffff; | |
996b0541 | 375 | spin_lock(mlx4_tlock(dev)); |
c82e9aa0 EC |
376 | |
377 | r = find_res(dev, id, type); | |
378 | if (r) { | |
379 | *slave = r->owner; | |
380 | err = 0; | |
381 | } | |
996b0541 | 382 | spin_unlock(mlx4_tlock(dev)); |
c82e9aa0 EC |
383 | |
384 | return err; | |
385 | } | |
386 | ||
aa1ec3dd | 387 | static void put_res(struct mlx4_dev *dev, int slave, u64 res_id, |
c82e9aa0 EC |
388 | enum mlx4_resource type) |
389 | { | |
390 | struct res_common *r; | |
391 | ||
392 | spin_lock_irq(mlx4_tlock(dev)); | |
393 | r = find_res(dev, res_id, type); | |
394 | if (r) | |
395 | r->state = r->from_state; | |
396 | spin_unlock_irq(mlx4_tlock(dev)); | |
397 | } | |
398 | ||
399 | static struct res_common *alloc_qp_tr(int id) | |
400 | { | |
401 | struct res_qp *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_QP_RESERVED; | |
2531188b | 409 | ret->local_qpn = id; |
c82e9aa0 EC |
410 | INIT_LIST_HEAD(&ret->mcg_list); |
411 | spin_lock_init(&ret->mcg_spl); | |
412 | ||
413 | return &ret->com; | |
414 | } | |
415 | ||
416 | static struct res_common *alloc_mtt_tr(int id, int order) | |
417 | { | |
418 | struct res_mtt *ret; | |
419 | ||
420 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
421 | if (!ret) | |
422 | return NULL; | |
423 | ||
424 | ret->com.res_id = id; | |
425 | ret->order = order; | |
426 | ret->com.state = RES_MTT_ALLOCATED; | |
427 | atomic_set(&ret->ref_count, 0); | |
428 | ||
429 | return &ret->com; | |
430 | } | |
431 | ||
432 | static struct res_common *alloc_mpt_tr(int id, int key) | |
433 | { | |
434 | struct res_mpt *ret; | |
435 | ||
436 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
437 | if (!ret) | |
438 | return NULL; | |
439 | ||
440 | ret->com.res_id = id; | |
441 | ret->com.state = RES_MPT_RESERVED; | |
442 | ret->key = key; | |
443 | ||
444 | return &ret->com; | |
445 | } | |
446 | ||
447 | static struct res_common *alloc_eq_tr(int id) | |
448 | { | |
449 | struct res_eq *ret; | |
450 | ||
451 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
452 | if (!ret) | |
453 | return NULL; | |
454 | ||
455 | ret->com.res_id = id; | |
456 | ret->com.state = RES_EQ_RESERVED; | |
457 | ||
458 | return &ret->com; | |
459 | } | |
460 | ||
461 | static struct res_common *alloc_cq_tr(int id) | |
462 | { | |
463 | struct res_cq *ret; | |
464 | ||
465 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
466 | if (!ret) | |
467 | return NULL; | |
468 | ||
469 | ret->com.res_id = id; | |
470 | ret->com.state = RES_CQ_ALLOCATED; | |
471 | atomic_set(&ret->ref_count, 0); | |
472 | ||
473 | return &ret->com; | |
474 | } | |
475 | ||
476 | static struct res_common *alloc_srq_tr(int id) | |
477 | { | |
478 | struct res_srq *ret; | |
479 | ||
480 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
481 | if (!ret) | |
482 | return NULL; | |
483 | ||
484 | ret->com.res_id = id; | |
485 | ret->com.state = RES_SRQ_ALLOCATED; | |
486 | atomic_set(&ret->ref_count, 0); | |
487 | ||
488 | return &ret->com; | |
489 | } | |
490 | ||
491 | static struct res_common *alloc_counter_tr(int id) | |
492 | { | |
493 | struct res_counter *ret; | |
494 | ||
495 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
496 | if (!ret) | |
497 | return NULL; | |
498 | ||
499 | ret->com.res_id = id; | |
500 | ret->com.state = RES_COUNTER_ALLOCATED; | |
501 | ||
502 | return &ret->com; | |
503 | } | |
504 | ||
ba062d52 JM |
505 | static struct res_common *alloc_xrcdn_tr(int id) |
506 | { | |
507 | struct res_xrcdn *ret; | |
508 | ||
509 | ret = kzalloc(sizeof *ret, GFP_KERNEL); | |
510 | if (!ret) | |
511 | return NULL; | |
512 | ||
513 | ret->com.res_id = id; | |
514 | ret->com.state = RES_XRCD_ALLOCATED; | |
515 | ||
516 | return &ret->com; | |
517 | } | |
518 | ||
aa1ec3dd | 519 | static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave, |
c82e9aa0 EC |
520 | int extra) |
521 | { | |
522 | struct res_common *ret; | |
523 | ||
524 | switch (type) { | |
525 | case RES_QP: | |
526 | ret = alloc_qp_tr(id); | |
527 | break; | |
528 | case RES_MPT: | |
529 | ret = alloc_mpt_tr(id, extra); | |
530 | break; | |
531 | case RES_MTT: | |
532 | ret = alloc_mtt_tr(id, extra); | |
533 | break; | |
534 | case RES_EQ: | |
535 | ret = alloc_eq_tr(id); | |
536 | break; | |
537 | case RES_CQ: | |
538 | ret = alloc_cq_tr(id); | |
539 | break; | |
540 | case RES_SRQ: | |
541 | ret = alloc_srq_tr(id); | |
542 | break; | |
543 | case RES_MAC: | |
544 | printk(KERN_ERR "implementation missing\n"); | |
545 | return NULL; | |
546 | case RES_COUNTER: | |
547 | ret = alloc_counter_tr(id); | |
548 | break; | |
ba062d52 JM |
549 | case RES_XRCD: |
550 | ret = alloc_xrcdn_tr(id); | |
551 | break; | |
c82e9aa0 EC |
552 | default: |
553 | return NULL; | |
554 | } | |
555 | if (ret) | |
556 | ret->owner = slave; | |
557 | ||
558 | return ret; | |
559 | } | |
560 | ||
aa1ec3dd | 561 | static int add_res_range(struct mlx4_dev *dev, int slave, u64 base, int count, |
c82e9aa0 EC |
562 | enum mlx4_resource type, int extra) |
563 | { | |
564 | int i; | |
565 | int err; | |
566 | struct mlx4_priv *priv = mlx4_priv(dev); | |
567 | struct res_common **res_arr; | |
568 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
4af1c048 | 569 | struct rb_root *root = &tracker->res_tree[type]; |
c82e9aa0 EC |
570 | |
571 | res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL); | |
572 | if (!res_arr) | |
573 | return -ENOMEM; | |
574 | ||
575 | for (i = 0; i < count; ++i) { | |
576 | res_arr[i] = alloc_tr(base + i, type, slave, extra); | |
577 | if (!res_arr[i]) { | |
578 | for (--i; i >= 0; --i) | |
579 | kfree(res_arr[i]); | |
580 | ||
581 | kfree(res_arr); | |
582 | return -ENOMEM; | |
583 | } | |
584 | } | |
585 | ||
586 | spin_lock_irq(mlx4_tlock(dev)); | |
587 | for (i = 0; i < count; ++i) { | |
588 | if (find_res(dev, base + i, type)) { | |
589 | err = -EEXIST; | |
590 | goto undo; | |
591 | } | |
4af1c048 | 592 | err = res_tracker_insert(root, res_arr[i]); |
c82e9aa0 EC |
593 | if (err) |
594 | goto undo; | |
595 | list_add_tail(&res_arr[i]->list, | |
596 | &tracker->slave_list[slave].res_list[type]); | |
597 | } | |
598 | spin_unlock_irq(mlx4_tlock(dev)); | |
599 | kfree(res_arr); | |
600 | ||
601 | return 0; | |
602 | ||
603 | undo: | |
604 | for (--i; i >= base; --i) | |
4af1c048 | 605 | rb_erase(&res_arr[i]->node, root); |
c82e9aa0 EC |
606 | |
607 | spin_unlock_irq(mlx4_tlock(dev)); | |
608 | ||
609 | for (i = 0; i < count; ++i) | |
610 | kfree(res_arr[i]); | |
611 | ||
612 | kfree(res_arr); | |
613 | ||
614 | return err; | |
615 | } | |
616 | ||
617 | static int remove_qp_ok(struct res_qp *res) | |
618 | { | |
619 | if (res->com.state == RES_QP_BUSY) | |
620 | return -EBUSY; | |
621 | else if (res->com.state != RES_QP_RESERVED) | |
622 | return -EPERM; | |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
627 | static int remove_mtt_ok(struct res_mtt *res, int order) | |
628 | { | |
629 | if (res->com.state == RES_MTT_BUSY || | |
630 | atomic_read(&res->ref_count)) { | |
631 | printk(KERN_DEBUG "%s-%d: state %s, ref_count %d\n", | |
632 | __func__, __LINE__, | |
633 | mtt_states_str(res->com.state), | |
634 | atomic_read(&res->ref_count)); | |
635 | return -EBUSY; | |
636 | } else if (res->com.state != RES_MTT_ALLOCATED) | |
637 | return -EPERM; | |
638 | else if (res->order != order) | |
639 | return -EINVAL; | |
640 | ||
641 | return 0; | |
642 | } | |
643 | ||
644 | static int remove_mpt_ok(struct res_mpt *res) | |
645 | { | |
646 | if (res->com.state == RES_MPT_BUSY) | |
647 | return -EBUSY; | |
648 | else if (res->com.state != RES_MPT_RESERVED) | |
649 | return -EPERM; | |
650 | ||
651 | return 0; | |
652 | } | |
653 | ||
654 | static int remove_eq_ok(struct res_eq *res) | |
655 | { | |
656 | if (res->com.state == RES_MPT_BUSY) | |
657 | return -EBUSY; | |
658 | else if (res->com.state != RES_MPT_RESERVED) | |
659 | return -EPERM; | |
660 | ||
661 | return 0; | |
662 | } | |
663 | ||
664 | static int remove_counter_ok(struct res_counter *res) | |
665 | { | |
666 | if (res->com.state == RES_COUNTER_BUSY) | |
667 | return -EBUSY; | |
668 | else if (res->com.state != RES_COUNTER_ALLOCATED) | |
669 | return -EPERM; | |
670 | ||
671 | return 0; | |
672 | } | |
673 | ||
ba062d52 JM |
674 | static int remove_xrcdn_ok(struct res_xrcdn *res) |
675 | { | |
676 | if (res->com.state == RES_XRCD_BUSY) | |
677 | return -EBUSY; | |
678 | else if (res->com.state != RES_XRCD_ALLOCATED) | |
679 | return -EPERM; | |
680 | ||
681 | return 0; | |
682 | } | |
683 | ||
c82e9aa0 EC |
684 | static int remove_cq_ok(struct res_cq *res) |
685 | { | |
686 | if (res->com.state == RES_CQ_BUSY) | |
687 | return -EBUSY; | |
688 | else if (res->com.state != RES_CQ_ALLOCATED) | |
689 | return -EPERM; | |
690 | ||
691 | return 0; | |
692 | } | |
693 | ||
694 | static int remove_srq_ok(struct res_srq *res) | |
695 | { | |
696 | if (res->com.state == RES_SRQ_BUSY) | |
697 | return -EBUSY; | |
698 | else if (res->com.state != RES_SRQ_ALLOCATED) | |
699 | return -EPERM; | |
700 | ||
701 | return 0; | |
702 | } | |
703 | ||
704 | static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra) | |
705 | { | |
706 | switch (type) { | |
707 | case RES_QP: | |
708 | return remove_qp_ok((struct res_qp *)res); | |
709 | case RES_CQ: | |
710 | return remove_cq_ok((struct res_cq *)res); | |
711 | case RES_SRQ: | |
712 | return remove_srq_ok((struct res_srq *)res); | |
713 | case RES_MPT: | |
714 | return remove_mpt_ok((struct res_mpt *)res); | |
715 | case RES_MTT: | |
716 | return remove_mtt_ok((struct res_mtt *)res, extra); | |
717 | case RES_MAC: | |
718 | return -ENOSYS; | |
719 | case RES_EQ: | |
720 | return remove_eq_ok((struct res_eq *)res); | |
721 | case RES_COUNTER: | |
722 | return remove_counter_ok((struct res_counter *)res); | |
ba062d52 JM |
723 | case RES_XRCD: |
724 | return remove_xrcdn_ok((struct res_xrcdn *)res); | |
c82e9aa0 EC |
725 | default: |
726 | return -EINVAL; | |
727 | } | |
728 | } | |
729 | ||
aa1ec3dd | 730 | static int rem_res_range(struct mlx4_dev *dev, int slave, u64 base, int count, |
c82e9aa0 EC |
731 | enum mlx4_resource type, int extra) |
732 | { | |
aa1ec3dd | 733 | u64 i; |
c82e9aa0 EC |
734 | int err; |
735 | struct mlx4_priv *priv = mlx4_priv(dev); | |
736 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
737 | struct res_common *r; | |
738 | ||
739 | spin_lock_irq(mlx4_tlock(dev)); | |
740 | for (i = base; i < base + count; ++i) { | |
4af1c048 | 741 | r = res_tracker_lookup(&tracker->res_tree[type], i); |
c82e9aa0 EC |
742 | if (!r) { |
743 | err = -ENOENT; | |
744 | goto out; | |
745 | } | |
746 | if (r->owner != slave) { | |
747 | err = -EPERM; | |
748 | goto out; | |
749 | } | |
750 | err = remove_ok(r, type, extra); | |
751 | if (err) | |
752 | goto out; | |
753 | } | |
754 | ||
755 | for (i = base; i < base + count; ++i) { | |
4af1c048 HHZ |
756 | r = res_tracker_lookup(&tracker->res_tree[type], i); |
757 | rb_erase(&r->node, &tracker->res_tree[type]); | |
c82e9aa0 EC |
758 | list_del(&r->list); |
759 | kfree(r); | |
760 | } | |
761 | err = 0; | |
762 | ||
763 | out: | |
764 | spin_unlock_irq(mlx4_tlock(dev)); | |
765 | ||
766 | return err; | |
767 | } | |
768 | ||
769 | static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn, | |
770 | enum res_qp_states state, struct res_qp **qp, | |
771 | int alloc) | |
772 | { | |
773 | struct mlx4_priv *priv = mlx4_priv(dev); | |
774 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
775 | struct res_qp *r; | |
776 | int err = 0; | |
777 | ||
778 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 | 779 | r = res_tracker_lookup(&tracker->res_tree[RES_QP], qpn); |
c82e9aa0 EC |
780 | if (!r) |
781 | err = -ENOENT; | |
782 | else if (r->com.owner != slave) | |
783 | err = -EPERM; | |
784 | else { | |
785 | switch (state) { | |
786 | case RES_QP_BUSY: | |
aa1ec3dd | 787 | mlx4_dbg(dev, "%s: failed RES_QP, 0x%llx\n", |
c82e9aa0 EC |
788 | __func__, r->com.res_id); |
789 | err = -EBUSY; | |
790 | break; | |
791 | ||
792 | case RES_QP_RESERVED: | |
793 | if (r->com.state == RES_QP_MAPPED && !alloc) | |
794 | break; | |
795 | ||
aa1ec3dd | 796 | mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", r->com.res_id); |
c82e9aa0 EC |
797 | err = -EINVAL; |
798 | break; | |
799 | ||
800 | case RES_QP_MAPPED: | |
801 | if ((r->com.state == RES_QP_RESERVED && alloc) || | |
802 | r->com.state == RES_QP_HW) | |
803 | break; | |
804 | else { | |
aa1ec3dd | 805 | mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", |
c82e9aa0 EC |
806 | r->com.res_id); |
807 | err = -EINVAL; | |
808 | } | |
809 | ||
810 | break; | |
811 | ||
812 | case RES_QP_HW: | |
813 | if (r->com.state != RES_QP_MAPPED) | |
814 | err = -EINVAL; | |
815 | break; | |
816 | default: | |
817 | err = -EINVAL; | |
818 | } | |
819 | ||
820 | if (!err) { | |
821 | r->com.from_state = r->com.state; | |
822 | r->com.to_state = state; | |
823 | r->com.state = RES_QP_BUSY; | |
824 | if (qp) | |
64699336 | 825 | *qp = r; |
c82e9aa0 EC |
826 | } |
827 | } | |
828 | ||
829 | spin_unlock_irq(mlx4_tlock(dev)); | |
830 | ||
831 | return err; | |
832 | } | |
833 | ||
834 | static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index, | |
835 | enum res_mpt_states state, struct res_mpt **mpt) | |
836 | { | |
837 | struct mlx4_priv *priv = mlx4_priv(dev); | |
838 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
839 | struct res_mpt *r; | |
840 | int err = 0; | |
841 | ||
842 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 | 843 | r = res_tracker_lookup(&tracker->res_tree[RES_MPT], index); |
c82e9aa0 EC |
844 | if (!r) |
845 | err = -ENOENT; | |
846 | else if (r->com.owner != slave) | |
847 | err = -EPERM; | |
848 | else { | |
849 | switch (state) { | |
850 | case RES_MPT_BUSY: | |
851 | err = -EINVAL; | |
852 | break; | |
853 | ||
854 | case RES_MPT_RESERVED: | |
855 | if (r->com.state != RES_MPT_MAPPED) | |
856 | err = -EINVAL; | |
857 | break; | |
858 | ||
859 | case RES_MPT_MAPPED: | |
860 | if (r->com.state != RES_MPT_RESERVED && | |
861 | r->com.state != RES_MPT_HW) | |
862 | err = -EINVAL; | |
863 | break; | |
864 | ||
865 | case RES_MPT_HW: | |
866 | if (r->com.state != RES_MPT_MAPPED) | |
867 | err = -EINVAL; | |
868 | break; | |
869 | default: | |
870 | err = -EINVAL; | |
871 | } | |
872 | ||
873 | if (!err) { | |
874 | r->com.from_state = r->com.state; | |
875 | r->com.to_state = state; | |
876 | r->com.state = RES_MPT_BUSY; | |
877 | if (mpt) | |
64699336 | 878 | *mpt = r; |
c82e9aa0 EC |
879 | } |
880 | } | |
881 | ||
882 | spin_unlock_irq(mlx4_tlock(dev)); | |
883 | ||
884 | return err; | |
885 | } | |
886 | ||
887 | static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, | |
888 | enum res_eq_states state, struct res_eq **eq) | |
889 | { | |
890 | struct mlx4_priv *priv = mlx4_priv(dev); | |
891 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
892 | struct res_eq *r; | |
893 | int err = 0; | |
894 | ||
895 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 | 896 | r = res_tracker_lookup(&tracker->res_tree[RES_EQ], index); |
c82e9aa0 EC |
897 | if (!r) |
898 | err = -ENOENT; | |
899 | else if (r->com.owner != slave) | |
900 | err = -EPERM; | |
901 | else { | |
902 | switch (state) { | |
903 | case RES_EQ_BUSY: | |
904 | err = -EINVAL; | |
905 | break; | |
906 | ||
907 | case RES_EQ_RESERVED: | |
908 | if (r->com.state != RES_EQ_HW) | |
909 | err = -EINVAL; | |
910 | break; | |
911 | ||
912 | case RES_EQ_HW: | |
913 | if (r->com.state != RES_EQ_RESERVED) | |
914 | err = -EINVAL; | |
915 | break; | |
916 | ||
917 | default: | |
918 | err = -EINVAL; | |
919 | } | |
920 | ||
921 | if (!err) { | |
922 | r->com.from_state = r->com.state; | |
923 | r->com.to_state = state; | |
924 | r->com.state = RES_EQ_BUSY; | |
925 | if (eq) | |
926 | *eq = r; | |
927 | } | |
928 | } | |
929 | ||
930 | spin_unlock_irq(mlx4_tlock(dev)); | |
931 | ||
932 | return err; | |
933 | } | |
934 | ||
935 | static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn, | |
936 | enum res_cq_states state, struct res_cq **cq) | |
937 | { | |
938 | struct mlx4_priv *priv = mlx4_priv(dev); | |
939 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
940 | struct res_cq *r; | |
941 | int err; | |
942 | ||
943 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 | 944 | r = res_tracker_lookup(&tracker->res_tree[RES_CQ], cqn); |
c82e9aa0 EC |
945 | if (!r) |
946 | err = -ENOENT; | |
947 | else if (r->com.owner != slave) | |
948 | err = -EPERM; | |
949 | else { | |
950 | switch (state) { | |
951 | case RES_CQ_BUSY: | |
952 | err = -EBUSY; | |
953 | break; | |
954 | ||
955 | case RES_CQ_ALLOCATED: | |
956 | if (r->com.state != RES_CQ_HW) | |
957 | err = -EINVAL; | |
958 | else if (atomic_read(&r->ref_count)) | |
959 | err = -EBUSY; | |
960 | else | |
961 | err = 0; | |
962 | break; | |
963 | ||
964 | case RES_CQ_HW: | |
965 | if (r->com.state != RES_CQ_ALLOCATED) | |
966 | err = -EINVAL; | |
967 | else | |
968 | err = 0; | |
969 | break; | |
970 | ||
971 | default: | |
972 | err = -EINVAL; | |
973 | } | |
974 | ||
975 | if (!err) { | |
976 | r->com.from_state = r->com.state; | |
977 | r->com.to_state = state; | |
978 | r->com.state = RES_CQ_BUSY; | |
979 | if (cq) | |
980 | *cq = r; | |
981 | } | |
982 | } | |
983 | ||
984 | spin_unlock_irq(mlx4_tlock(dev)); | |
985 | ||
986 | return err; | |
987 | } | |
988 | ||
989 | static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, | |
990 | enum res_cq_states state, struct res_srq **srq) | |
991 | { | |
992 | struct mlx4_priv *priv = mlx4_priv(dev); | |
993 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
994 | struct res_srq *r; | |
995 | int err = 0; | |
996 | ||
997 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 | 998 | r = res_tracker_lookup(&tracker->res_tree[RES_SRQ], index); |
c82e9aa0 EC |
999 | if (!r) |
1000 | err = -ENOENT; | |
1001 | else if (r->com.owner != slave) | |
1002 | err = -EPERM; | |
1003 | else { | |
1004 | switch (state) { | |
1005 | case RES_SRQ_BUSY: | |
1006 | err = -EINVAL; | |
1007 | break; | |
1008 | ||
1009 | case RES_SRQ_ALLOCATED: | |
1010 | if (r->com.state != RES_SRQ_HW) | |
1011 | err = -EINVAL; | |
1012 | else if (atomic_read(&r->ref_count)) | |
1013 | err = -EBUSY; | |
1014 | break; | |
1015 | ||
1016 | case RES_SRQ_HW: | |
1017 | if (r->com.state != RES_SRQ_ALLOCATED) | |
1018 | err = -EINVAL; | |
1019 | break; | |
1020 | ||
1021 | default: | |
1022 | err = -EINVAL; | |
1023 | } | |
1024 | ||
1025 | if (!err) { | |
1026 | r->com.from_state = r->com.state; | |
1027 | r->com.to_state = state; | |
1028 | r->com.state = RES_SRQ_BUSY; | |
1029 | if (srq) | |
1030 | *srq = r; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | spin_unlock_irq(mlx4_tlock(dev)); | |
1035 | ||
1036 | return err; | |
1037 | } | |
1038 | ||
1039 | static void res_abort_move(struct mlx4_dev *dev, int slave, | |
1040 | enum mlx4_resource type, int id) | |
1041 | { | |
1042 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1043 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1044 | struct res_common *r; | |
1045 | ||
1046 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 | 1047 | r = res_tracker_lookup(&tracker->res_tree[type], id); |
c82e9aa0 EC |
1048 | if (r && (r->owner == slave)) |
1049 | r->state = r->from_state; | |
1050 | spin_unlock_irq(mlx4_tlock(dev)); | |
1051 | } | |
1052 | ||
1053 | static void res_end_move(struct mlx4_dev *dev, int slave, | |
1054 | enum mlx4_resource type, int id) | |
1055 | { | |
1056 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1057 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1058 | struct res_common *r; | |
1059 | ||
1060 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 | 1061 | r = res_tracker_lookup(&tracker->res_tree[type], id); |
c82e9aa0 EC |
1062 | if (r && (r->owner == slave)) |
1063 | r->state = r->to_state; | |
1064 | spin_unlock_irq(mlx4_tlock(dev)); | |
1065 | } | |
1066 | ||
1067 | static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn) | |
1068 | { | |
1069 | return mlx4_is_qp_reserved(dev, qpn); | |
1070 | } | |
1071 | ||
1072 | static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1073 | u64 in_param, u64 *out_param) | |
1074 | { | |
1075 | int err; | |
1076 | int count; | |
1077 | int align; | |
1078 | int base; | |
1079 | int qpn; | |
1080 | ||
1081 | switch (op) { | |
1082 | case RES_OP_RESERVE: | |
1083 | count = get_param_l(&in_param); | |
1084 | align = get_param_h(&in_param); | |
1085 | err = __mlx4_qp_reserve_range(dev, count, align, &base); | |
1086 | if (err) | |
1087 | return err; | |
1088 | ||
1089 | err = add_res_range(dev, slave, base, count, RES_QP, 0); | |
1090 | if (err) { | |
1091 | __mlx4_qp_release_range(dev, base, count); | |
1092 | return err; | |
1093 | } | |
1094 | set_param_l(out_param, base); | |
1095 | break; | |
1096 | case RES_OP_MAP_ICM: | |
1097 | qpn = get_param_l(&in_param) & 0x7fffff; | |
1098 | if (valid_reserved(dev, slave, qpn)) { | |
1099 | err = add_res_range(dev, slave, qpn, 1, RES_QP, 0); | |
1100 | if (err) | |
1101 | return err; | |
1102 | } | |
1103 | ||
1104 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, | |
1105 | NULL, 1); | |
1106 | if (err) | |
1107 | return err; | |
1108 | ||
1109 | if (!valid_reserved(dev, slave, qpn)) { | |
1110 | err = __mlx4_qp_alloc_icm(dev, qpn); | |
1111 | if (err) { | |
1112 | res_abort_move(dev, slave, RES_QP, qpn); | |
1113 | return err; | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | res_end_move(dev, slave, RES_QP, qpn); | |
1118 | break; | |
1119 | ||
1120 | default: | |
1121 | err = -EINVAL; | |
1122 | break; | |
1123 | } | |
1124 | return err; | |
1125 | } | |
1126 | ||
1127 | static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1128 | u64 in_param, u64 *out_param) | |
1129 | { | |
1130 | int err = -EINVAL; | |
1131 | int base; | |
1132 | int order; | |
1133 | ||
1134 | if (op != RES_OP_RESERVE_AND_MAP) | |
1135 | return err; | |
1136 | ||
1137 | order = get_param_l(&in_param); | |
1138 | base = __mlx4_alloc_mtt_range(dev, order); | |
1139 | if (base == -1) | |
1140 | return -ENOMEM; | |
1141 | ||
1142 | err = add_res_range(dev, slave, base, 1, RES_MTT, order); | |
1143 | if (err) | |
1144 | __mlx4_free_mtt_range(dev, base, order); | |
1145 | else | |
1146 | set_param_l(out_param, base); | |
1147 | ||
1148 | return err; | |
1149 | } | |
1150 | ||
1151 | static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1152 | u64 in_param, u64 *out_param) | |
1153 | { | |
1154 | int err = -EINVAL; | |
1155 | int index; | |
1156 | int id; | |
1157 | struct res_mpt *mpt; | |
1158 | ||
1159 | switch (op) { | |
1160 | case RES_OP_RESERVE: | |
1161 | index = __mlx4_mr_reserve(dev); | |
1162 | if (index == -1) | |
1163 | break; | |
1164 | id = index & mpt_mask(dev); | |
1165 | ||
1166 | err = add_res_range(dev, slave, id, 1, RES_MPT, index); | |
1167 | if (err) { | |
1168 | __mlx4_mr_release(dev, index); | |
1169 | break; | |
1170 | } | |
1171 | set_param_l(out_param, index); | |
1172 | break; | |
1173 | case RES_OP_MAP_ICM: | |
1174 | index = get_param_l(&in_param); | |
1175 | id = index & mpt_mask(dev); | |
1176 | err = mr_res_start_move_to(dev, slave, id, | |
1177 | RES_MPT_MAPPED, &mpt); | |
1178 | if (err) | |
1179 | return err; | |
1180 | ||
1181 | err = __mlx4_mr_alloc_icm(dev, mpt->key); | |
1182 | if (err) { | |
1183 | res_abort_move(dev, slave, RES_MPT, id); | |
1184 | return err; | |
1185 | } | |
1186 | ||
1187 | res_end_move(dev, slave, RES_MPT, id); | |
1188 | break; | |
1189 | } | |
1190 | return err; | |
1191 | } | |
1192 | ||
1193 | static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1194 | u64 in_param, u64 *out_param) | |
1195 | { | |
1196 | int cqn; | |
1197 | int err; | |
1198 | ||
1199 | switch (op) { | |
1200 | case RES_OP_RESERVE_AND_MAP: | |
1201 | err = __mlx4_cq_alloc_icm(dev, &cqn); | |
1202 | if (err) | |
1203 | break; | |
1204 | ||
1205 | err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0); | |
1206 | if (err) { | |
1207 | __mlx4_cq_free_icm(dev, cqn); | |
1208 | break; | |
1209 | } | |
1210 | ||
1211 | set_param_l(out_param, cqn); | |
1212 | break; | |
1213 | ||
1214 | default: | |
1215 | err = -EINVAL; | |
1216 | } | |
1217 | ||
1218 | return err; | |
1219 | } | |
1220 | ||
1221 | static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1222 | u64 in_param, u64 *out_param) | |
1223 | { | |
1224 | int srqn; | |
1225 | int err; | |
1226 | ||
1227 | switch (op) { | |
1228 | case RES_OP_RESERVE_AND_MAP: | |
1229 | err = __mlx4_srq_alloc_icm(dev, &srqn); | |
1230 | if (err) | |
1231 | break; | |
1232 | ||
1233 | err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0); | |
1234 | if (err) { | |
1235 | __mlx4_srq_free_icm(dev, srqn); | |
1236 | break; | |
1237 | } | |
1238 | ||
1239 | set_param_l(out_param, srqn); | |
1240 | break; | |
1241 | ||
1242 | default: | |
1243 | err = -EINVAL; | |
1244 | } | |
1245 | ||
1246 | return err; | |
1247 | } | |
1248 | ||
1249 | static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port) | |
1250 | { | |
1251 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1252 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1253 | struct mac_res *res; | |
1254 | ||
1255 | res = kzalloc(sizeof *res, GFP_KERNEL); | |
1256 | if (!res) | |
1257 | return -ENOMEM; | |
1258 | res->mac = mac; | |
1259 | res->port = (u8) port; | |
1260 | list_add_tail(&res->list, | |
1261 | &tracker->slave_list[slave].res_list[RES_MAC]); | |
1262 | return 0; | |
1263 | } | |
1264 | ||
1265 | static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac, | |
1266 | int port) | |
1267 | { | |
1268 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1269 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1270 | struct list_head *mac_list = | |
1271 | &tracker->slave_list[slave].res_list[RES_MAC]; | |
1272 | struct mac_res *res, *tmp; | |
1273 | ||
1274 | list_for_each_entry_safe(res, tmp, mac_list, list) { | |
1275 | if (res->mac == mac && res->port == (u8) port) { | |
1276 | list_del(&res->list); | |
1277 | kfree(res); | |
1278 | break; | |
1279 | } | |
1280 | } | |
1281 | } | |
1282 | ||
1283 | static void rem_slave_macs(struct mlx4_dev *dev, int slave) | |
1284 | { | |
1285 | struct mlx4_priv *priv = mlx4_priv(dev); | |
1286 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
1287 | struct list_head *mac_list = | |
1288 | &tracker->slave_list[slave].res_list[RES_MAC]; | |
1289 | struct mac_res *res, *tmp; | |
1290 | ||
1291 | list_for_each_entry_safe(res, tmp, mac_list, list) { | |
1292 | list_del(&res->list); | |
1293 | __mlx4_unregister_mac(dev, res->port, res->mac); | |
1294 | kfree(res); | |
1295 | } | |
1296 | } | |
1297 | ||
1298 | static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1299 | u64 in_param, u64 *out_param) | |
1300 | { | |
1301 | int err = -EINVAL; | |
1302 | int port; | |
1303 | u64 mac; | |
1304 | ||
1305 | if (op != RES_OP_RESERVE_AND_MAP) | |
1306 | return err; | |
1307 | ||
1308 | port = get_param_l(out_param); | |
1309 | mac = in_param; | |
1310 | ||
1311 | err = __mlx4_register_mac(dev, port, mac); | |
1312 | if (err >= 0) { | |
1313 | set_param_l(out_param, err); | |
1314 | err = 0; | |
1315 | } | |
1316 | ||
1317 | if (!err) { | |
1318 | err = mac_add_to_slave(dev, slave, mac, port); | |
1319 | if (err) | |
1320 | __mlx4_unregister_mac(dev, port, mac); | |
1321 | } | |
1322 | return err; | |
1323 | } | |
1324 | ||
ffe455ad EE |
1325 | static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
1326 | u64 in_param, u64 *out_param) | |
1327 | { | |
1328 | return 0; | |
1329 | } | |
1330 | ||
ba062d52 JM |
1331 | static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
1332 | u64 in_param, u64 *out_param) | |
1333 | { | |
1334 | u32 index; | |
1335 | int err; | |
1336 | ||
1337 | if (op != RES_OP_RESERVE) | |
1338 | return -EINVAL; | |
1339 | ||
1340 | err = __mlx4_counter_alloc(dev, &index); | |
1341 | if (err) | |
1342 | return err; | |
1343 | ||
1344 | err = add_res_range(dev, slave, index, 1, RES_COUNTER, 0); | |
1345 | if (err) | |
1346 | __mlx4_counter_free(dev, index); | |
1347 | else | |
1348 | set_param_l(out_param, index); | |
1349 | ||
1350 | return err; | |
1351 | } | |
1352 | ||
1353 | static int xrcdn_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1354 | u64 in_param, u64 *out_param) | |
1355 | { | |
1356 | u32 xrcdn; | |
1357 | int err; | |
1358 | ||
1359 | if (op != RES_OP_RESERVE) | |
1360 | return -EINVAL; | |
1361 | ||
1362 | err = __mlx4_xrcd_alloc(dev, &xrcdn); | |
1363 | if (err) | |
1364 | return err; | |
1365 | ||
1366 | err = add_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0); | |
1367 | if (err) | |
1368 | __mlx4_xrcd_free(dev, xrcdn); | |
1369 | else | |
1370 | set_param_l(out_param, xrcdn); | |
1371 | ||
1372 | return err; | |
1373 | } | |
1374 | ||
c82e9aa0 EC |
1375 | int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave, |
1376 | struct mlx4_vhcr *vhcr, | |
1377 | struct mlx4_cmd_mailbox *inbox, | |
1378 | struct mlx4_cmd_mailbox *outbox, | |
1379 | struct mlx4_cmd_info *cmd) | |
1380 | { | |
1381 | int err; | |
1382 | int alop = vhcr->op_modifier; | |
1383 | ||
1384 | switch (vhcr->in_modifier) { | |
1385 | case RES_QP: | |
1386 | err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1387 | vhcr->in_param, &vhcr->out_param); | |
1388 | break; | |
1389 | ||
1390 | case RES_MTT: | |
1391 | err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1392 | vhcr->in_param, &vhcr->out_param); | |
1393 | break; | |
1394 | ||
1395 | case RES_MPT: | |
1396 | err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1397 | vhcr->in_param, &vhcr->out_param); | |
1398 | break; | |
1399 | ||
1400 | case RES_CQ: | |
1401 | err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1402 | vhcr->in_param, &vhcr->out_param); | |
1403 | break; | |
1404 | ||
1405 | case RES_SRQ: | |
1406 | err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1407 | vhcr->in_param, &vhcr->out_param); | |
1408 | break; | |
1409 | ||
1410 | case RES_MAC: | |
1411 | err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1412 | vhcr->in_param, &vhcr->out_param); | |
1413 | break; | |
1414 | ||
ffe455ad EE |
1415 | case RES_VLAN: |
1416 | err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1417 | vhcr->in_param, &vhcr->out_param); | |
1418 | break; | |
1419 | ||
ba062d52 JM |
1420 | case RES_COUNTER: |
1421 | err = counter_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1422 | vhcr->in_param, &vhcr->out_param); | |
1423 | break; | |
1424 | ||
1425 | case RES_XRCD: | |
1426 | err = xrcdn_alloc_res(dev, slave, vhcr->op_modifier, alop, | |
1427 | vhcr->in_param, &vhcr->out_param); | |
1428 | break; | |
1429 | ||
c82e9aa0 EC |
1430 | default: |
1431 | err = -EINVAL; | |
1432 | break; | |
1433 | } | |
1434 | ||
1435 | return err; | |
1436 | } | |
1437 | ||
1438 | static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1439 | u64 in_param) | |
1440 | { | |
1441 | int err; | |
1442 | int count; | |
1443 | int base; | |
1444 | int qpn; | |
1445 | ||
1446 | switch (op) { | |
1447 | case RES_OP_RESERVE: | |
1448 | base = get_param_l(&in_param) & 0x7fffff; | |
1449 | count = get_param_h(&in_param); | |
1450 | err = rem_res_range(dev, slave, base, count, RES_QP, 0); | |
1451 | if (err) | |
1452 | break; | |
1453 | __mlx4_qp_release_range(dev, base, count); | |
1454 | break; | |
1455 | case RES_OP_MAP_ICM: | |
1456 | qpn = get_param_l(&in_param) & 0x7fffff; | |
1457 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED, | |
1458 | NULL, 0); | |
1459 | if (err) | |
1460 | return err; | |
1461 | ||
1462 | if (!valid_reserved(dev, slave, qpn)) | |
1463 | __mlx4_qp_free_icm(dev, qpn); | |
1464 | ||
1465 | res_end_move(dev, slave, RES_QP, qpn); | |
1466 | ||
1467 | if (valid_reserved(dev, slave, qpn)) | |
1468 | err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0); | |
1469 | break; | |
1470 | default: | |
1471 | err = -EINVAL; | |
1472 | break; | |
1473 | } | |
1474 | return err; | |
1475 | } | |
1476 | ||
1477 | static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1478 | u64 in_param, u64 *out_param) | |
1479 | { | |
1480 | int err = -EINVAL; | |
1481 | int base; | |
1482 | int order; | |
1483 | ||
1484 | if (op != RES_OP_RESERVE_AND_MAP) | |
1485 | return err; | |
1486 | ||
1487 | base = get_param_l(&in_param); | |
1488 | order = get_param_h(&in_param); | |
1489 | err = rem_res_range(dev, slave, base, 1, RES_MTT, order); | |
1490 | if (!err) | |
1491 | __mlx4_free_mtt_range(dev, base, order); | |
1492 | return err; | |
1493 | } | |
1494 | ||
1495 | static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1496 | u64 in_param) | |
1497 | { | |
1498 | int err = -EINVAL; | |
1499 | int index; | |
1500 | int id; | |
1501 | struct res_mpt *mpt; | |
1502 | ||
1503 | switch (op) { | |
1504 | case RES_OP_RESERVE: | |
1505 | index = get_param_l(&in_param); | |
1506 | id = index & mpt_mask(dev); | |
1507 | err = get_res(dev, slave, id, RES_MPT, &mpt); | |
1508 | if (err) | |
1509 | break; | |
1510 | index = mpt->key; | |
1511 | put_res(dev, slave, id, RES_MPT); | |
1512 | ||
1513 | err = rem_res_range(dev, slave, id, 1, RES_MPT, 0); | |
1514 | if (err) | |
1515 | break; | |
1516 | __mlx4_mr_release(dev, index); | |
1517 | break; | |
1518 | case RES_OP_MAP_ICM: | |
1519 | index = get_param_l(&in_param); | |
1520 | id = index & mpt_mask(dev); | |
1521 | err = mr_res_start_move_to(dev, slave, id, | |
1522 | RES_MPT_RESERVED, &mpt); | |
1523 | if (err) | |
1524 | return err; | |
1525 | ||
1526 | __mlx4_mr_free_icm(dev, mpt->key); | |
1527 | res_end_move(dev, slave, RES_MPT, id); | |
1528 | return err; | |
1529 | break; | |
1530 | default: | |
1531 | err = -EINVAL; | |
1532 | break; | |
1533 | } | |
1534 | return err; | |
1535 | } | |
1536 | ||
1537 | static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1538 | u64 in_param, u64 *out_param) | |
1539 | { | |
1540 | int cqn; | |
1541 | int err; | |
1542 | ||
1543 | switch (op) { | |
1544 | case RES_OP_RESERVE_AND_MAP: | |
1545 | cqn = get_param_l(&in_param); | |
1546 | err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0); | |
1547 | if (err) | |
1548 | break; | |
1549 | ||
1550 | __mlx4_cq_free_icm(dev, cqn); | |
1551 | break; | |
1552 | ||
1553 | default: | |
1554 | err = -EINVAL; | |
1555 | break; | |
1556 | } | |
1557 | ||
1558 | return err; | |
1559 | } | |
1560 | ||
1561 | static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1562 | u64 in_param, u64 *out_param) | |
1563 | { | |
1564 | int srqn; | |
1565 | int err; | |
1566 | ||
1567 | switch (op) { | |
1568 | case RES_OP_RESERVE_AND_MAP: | |
1569 | srqn = get_param_l(&in_param); | |
1570 | err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0); | |
1571 | if (err) | |
1572 | break; | |
1573 | ||
1574 | __mlx4_srq_free_icm(dev, srqn); | |
1575 | break; | |
1576 | ||
1577 | default: | |
1578 | err = -EINVAL; | |
1579 | break; | |
1580 | } | |
1581 | ||
1582 | return err; | |
1583 | } | |
1584 | ||
1585 | static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1586 | u64 in_param, u64 *out_param) | |
1587 | { | |
1588 | int port; | |
1589 | int err = 0; | |
1590 | ||
1591 | switch (op) { | |
1592 | case RES_OP_RESERVE_AND_MAP: | |
1593 | port = get_param_l(out_param); | |
1594 | mac_del_from_slave(dev, slave, in_param, port); | |
1595 | __mlx4_unregister_mac(dev, port, in_param); | |
1596 | break; | |
1597 | default: | |
1598 | err = -EINVAL; | |
1599 | break; | |
1600 | } | |
1601 | ||
1602 | return err; | |
1603 | ||
1604 | } | |
1605 | ||
ffe455ad EE |
1606 | static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
1607 | u64 in_param, u64 *out_param) | |
1608 | { | |
1609 | return 0; | |
1610 | } | |
1611 | ||
ba062d52 JM |
1612 | static int counter_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
1613 | u64 in_param, u64 *out_param) | |
1614 | { | |
1615 | int index; | |
1616 | int err; | |
1617 | ||
1618 | if (op != RES_OP_RESERVE) | |
1619 | return -EINVAL; | |
1620 | ||
1621 | index = get_param_l(&in_param); | |
1622 | err = rem_res_range(dev, slave, index, 1, RES_COUNTER, 0); | |
1623 | if (err) | |
1624 | return err; | |
1625 | ||
1626 | __mlx4_counter_free(dev, index); | |
1627 | ||
1628 | return err; | |
1629 | } | |
1630 | ||
1631 | static int xrcdn_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, | |
1632 | u64 in_param, u64 *out_param) | |
1633 | { | |
1634 | int xrcdn; | |
1635 | int err; | |
1636 | ||
1637 | if (op != RES_OP_RESERVE) | |
1638 | return -EINVAL; | |
1639 | ||
1640 | xrcdn = get_param_l(&in_param); | |
1641 | err = rem_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0); | |
1642 | if (err) | |
1643 | return err; | |
1644 | ||
1645 | __mlx4_xrcd_free(dev, xrcdn); | |
1646 | ||
1647 | return err; | |
1648 | } | |
1649 | ||
c82e9aa0 EC |
1650 | int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave, |
1651 | struct mlx4_vhcr *vhcr, | |
1652 | struct mlx4_cmd_mailbox *inbox, | |
1653 | struct mlx4_cmd_mailbox *outbox, | |
1654 | struct mlx4_cmd_info *cmd) | |
1655 | { | |
1656 | int err = -EINVAL; | |
1657 | int alop = vhcr->op_modifier; | |
1658 | ||
1659 | switch (vhcr->in_modifier) { | |
1660 | case RES_QP: | |
1661 | err = qp_free_res(dev, slave, vhcr->op_modifier, alop, | |
1662 | vhcr->in_param); | |
1663 | break; | |
1664 | ||
1665 | case RES_MTT: | |
1666 | err = mtt_free_res(dev, slave, vhcr->op_modifier, alop, | |
1667 | vhcr->in_param, &vhcr->out_param); | |
1668 | break; | |
1669 | ||
1670 | case RES_MPT: | |
1671 | err = mpt_free_res(dev, slave, vhcr->op_modifier, alop, | |
1672 | vhcr->in_param); | |
1673 | break; | |
1674 | ||
1675 | case RES_CQ: | |
1676 | err = cq_free_res(dev, slave, vhcr->op_modifier, alop, | |
1677 | vhcr->in_param, &vhcr->out_param); | |
1678 | break; | |
1679 | ||
1680 | case RES_SRQ: | |
1681 | err = srq_free_res(dev, slave, vhcr->op_modifier, alop, | |
1682 | vhcr->in_param, &vhcr->out_param); | |
1683 | break; | |
1684 | ||
1685 | case RES_MAC: | |
1686 | err = mac_free_res(dev, slave, vhcr->op_modifier, alop, | |
1687 | vhcr->in_param, &vhcr->out_param); | |
1688 | break; | |
1689 | ||
ffe455ad EE |
1690 | case RES_VLAN: |
1691 | err = vlan_free_res(dev, slave, vhcr->op_modifier, alop, | |
1692 | vhcr->in_param, &vhcr->out_param); | |
1693 | break; | |
1694 | ||
ba062d52 JM |
1695 | case RES_COUNTER: |
1696 | err = counter_free_res(dev, slave, vhcr->op_modifier, alop, | |
1697 | vhcr->in_param, &vhcr->out_param); | |
1698 | break; | |
1699 | ||
1700 | case RES_XRCD: | |
1701 | err = xrcdn_free_res(dev, slave, vhcr->op_modifier, alop, | |
1702 | vhcr->in_param, &vhcr->out_param); | |
1703 | ||
c82e9aa0 EC |
1704 | default: |
1705 | break; | |
1706 | } | |
1707 | return err; | |
1708 | } | |
1709 | ||
1710 | /* ugly but other choices are uglier */ | |
1711 | static int mr_phys_mpt(struct mlx4_mpt_entry *mpt) | |
1712 | { | |
1713 | return (be32_to_cpu(mpt->flags) >> 9) & 1; | |
1714 | } | |
1715 | ||
2b8fb286 | 1716 | static int mr_get_mtt_addr(struct mlx4_mpt_entry *mpt) |
c82e9aa0 | 1717 | { |
2b8fb286 | 1718 | return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8; |
c82e9aa0 EC |
1719 | } |
1720 | ||
1721 | static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt) | |
1722 | { | |
1723 | return be32_to_cpu(mpt->mtt_sz); | |
1724 | } | |
1725 | ||
2b8fb286 | 1726 | static int qp_get_mtt_addr(struct mlx4_qp_context *qpc) |
c82e9aa0 EC |
1727 | { |
1728 | return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8; | |
1729 | } | |
1730 | ||
2b8fb286 | 1731 | static int srq_get_mtt_addr(struct mlx4_srq_context *srqc) |
c82e9aa0 EC |
1732 | { |
1733 | return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8; | |
1734 | } | |
1735 | ||
1736 | static int qp_get_mtt_size(struct mlx4_qp_context *qpc) | |
1737 | { | |
1738 | int page_shift = (qpc->log_page_size & 0x3f) + 12; | |
1739 | int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf; | |
1740 | int log_sq_sride = qpc->sq_size_stride & 7; | |
1741 | int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf; | |
1742 | int log_rq_stride = qpc->rq_size_stride & 7; | |
1743 | int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1; | |
1744 | int rss = (be32_to_cpu(qpc->flags) >> 13) & 1; | |
1745 | int xrc = (be32_to_cpu(qpc->local_qpn) >> 23) & 1; | |
1746 | int sq_size; | |
1747 | int rq_size; | |
1748 | int total_pages; | |
1749 | int total_mem; | |
1750 | int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f; | |
1751 | ||
1752 | sq_size = 1 << (log_sq_size + log_sq_sride + 4); | |
1753 | rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4)); | |
1754 | total_mem = sq_size + rq_size; | |
1755 | total_pages = | |
1756 | roundup_pow_of_two((total_mem + (page_offset << 6)) >> | |
1757 | page_shift); | |
1758 | ||
1759 | return total_pages; | |
1760 | } | |
1761 | ||
c82e9aa0 EC |
1762 | static int check_mtt_range(struct mlx4_dev *dev, int slave, int start, |
1763 | int size, struct res_mtt *mtt) | |
1764 | { | |
2b8fb286 MA |
1765 | int res_start = mtt->com.res_id; |
1766 | int res_size = (1 << mtt->order); | |
c82e9aa0 EC |
1767 | |
1768 | if (start < res_start || start + size > res_start + res_size) | |
1769 | return -EPERM; | |
1770 | return 0; | |
1771 | } | |
1772 | ||
1773 | int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave, | |
1774 | struct mlx4_vhcr *vhcr, | |
1775 | struct mlx4_cmd_mailbox *inbox, | |
1776 | struct mlx4_cmd_mailbox *outbox, | |
1777 | struct mlx4_cmd_info *cmd) | |
1778 | { | |
1779 | int err; | |
1780 | int index = vhcr->in_modifier; | |
1781 | struct res_mtt *mtt; | |
1782 | struct res_mpt *mpt; | |
2b8fb286 | 1783 | int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
1784 | int phys; |
1785 | int id; | |
1786 | ||
1787 | id = index & mpt_mask(dev); | |
1788 | err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt); | |
1789 | if (err) | |
1790 | return err; | |
1791 | ||
1792 | phys = mr_phys_mpt(inbox->buf); | |
1793 | if (!phys) { | |
2b8fb286 | 1794 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
1795 | if (err) |
1796 | goto ex_abort; | |
1797 | ||
1798 | err = check_mtt_range(dev, slave, mtt_base, | |
1799 | mr_get_mtt_size(inbox->buf), mtt); | |
1800 | if (err) | |
1801 | goto ex_put; | |
1802 | ||
1803 | mpt->mtt = mtt; | |
1804 | } | |
1805 | ||
c82e9aa0 EC |
1806 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
1807 | if (err) | |
1808 | goto ex_put; | |
1809 | ||
1810 | if (!phys) { | |
1811 | atomic_inc(&mtt->ref_count); | |
1812 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
1813 | } | |
1814 | ||
1815 | res_end_move(dev, slave, RES_MPT, id); | |
1816 | return 0; | |
1817 | ||
1818 | ex_put: | |
1819 | if (!phys) | |
1820 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
1821 | ex_abort: | |
1822 | res_abort_move(dev, slave, RES_MPT, id); | |
1823 | ||
1824 | return err; | |
1825 | } | |
1826 | ||
1827 | int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave, | |
1828 | struct mlx4_vhcr *vhcr, | |
1829 | struct mlx4_cmd_mailbox *inbox, | |
1830 | struct mlx4_cmd_mailbox *outbox, | |
1831 | struct mlx4_cmd_info *cmd) | |
1832 | { | |
1833 | int err; | |
1834 | int index = vhcr->in_modifier; | |
1835 | struct res_mpt *mpt; | |
1836 | int id; | |
1837 | ||
1838 | id = index & mpt_mask(dev); | |
1839 | err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt); | |
1840 | if (err) | |
1841 | return err; | |
1842 | ||
1843 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1844 | if (err) | |
1845 | goto ex_abort; | |
1846 | ||
1847 | if (mpt->mtt) | |
1848 | atomic_dec(&mpt->mtt->ref_count); | |
1849 | ||
1850 | res_end_move(dev, slave, RES_MPT, id); | |
1851 | return 0; | |
1852 | ||
1853 | ex_abort: | |
1854 | res_abort_move(dev, slave, RES_MPT, id); | |
1855 | ||
1856 | return err; | |
1857 | } | |
1858 | ||
1859 | int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave, | |
1860 | struct mlx4_vhcr *vhcr, | |
1861 | struct mlx4_cmd_mailbox *inbox, | |
1862 | struct mlx4_cmd_mailbox *outbox, | |
1863 | struct mlx4_cmd_info *cmd) | |
1864 | { | |
1865 | int err; | |
1866 | int index = vhcr->in_modifier; | |
1867 | struct res_mpt *mpt; | |
1868 | int id; | |
1869 | ||
1870 | id = index & mpt_mask(dev); | |
1871 | err = get_res(dev, slave, id, RES_MPT, &mpt); | |
1872 | if (err) | |
1873 | return err; | |
1874 | ||
1875 | if (mpt->com.from_state != RES_MPT_HW) { | |
1876 | err = -EBUSY; | |
1877 | goto out; | |
1878 | } | |
1879 | ||
1880 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1881 | ||
1882 | out: | |
1883 | put_res(dev, slave, id, RES_MPT); | |
1884 | return err; | |
1885 | } | |
1886 | ||
1887 | static int qp_get_rcqn(struct mlx4_qp_context *qpc) | |
1888 | { | |
1889 | return be32_to_cpu(qpc->cqn_recv) & 0xffffff; | |
1890 | } | |
1891 | ||
1892 | static int qp_get_scqn(struct mlx4_qp_context *qpc) | |
1893 | { | |
1894 | return be32_to_cpu(qpc->cqn_send) & 0xffffff; | |
1895 | } | |
1896 | ||
1897 | static u32 qp_get_srqn(struct mlx4_qp_context *qpc) | |
1898 | { | |
1899 | return be32_to_cpu(qpc->srqn) & 0x1ffffff; | |
1900 | } | |
1901 | ||
1902 | int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave, | |
1903 | struct mlx4_vhcr *vhcr, | |
1904 | struct mlx4_cmd_mailbox *inbox, | |
1905 | struct mlx4_cmd_mailbox *outbox, | |
1906 | struct mlx4_cmd_info *cmd) | |
1907 | { | |
1908 | int err; | |
1909 | int qpn = vhcr->in_modifier & 0x7fffff; | |
1910 | struct res_mtt *mtt; | |
1911 | struct res_qp *qp; | |
1912 | struct mlx4_qp_context *qpc = inbox->buf + 8; | |
2b8fb286 | 1913 | int mtt_base = qp_get_mtt_addr(qpc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
1914 | int mtt_size = qp_get_mtt_size(qpc); |
1915 | struct res_cq *rcq; | |
1916 | struct res_cq *scq; | |
1917 | int rcqn = qp_get_rcqn(qpc); | |
1918 | int scqn = qp_get_scqn(qpc); | |
1919 | u32 srqn = qp_get_srqn(qpc) & 0xffffff; | |
1920 | int use_srq = (qp_get_srqn(qpc) >> 24) & 1; | |
1921 | struct res_srq *srq; | |
1922 | int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff; | |
1923 | ||
1924 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0); | |
1925 | if (err) | |
1926 | return err; | |
1927 | qp->local_qpn = local_qpn; | |
1928 | ||
2b8fb286 | 1929 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
1930 | if (err) |
1931 | goto ex_abort; | |
1932 | ||
1933 | err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); | |
1934 | if (err) | |
1935 | goto ex_put_mtt; | |
1936 | ||
c82e9aa0 EC |
1937 | err = get_res(dev, slave, rcqn, RES_CQ, &rcq); |
1938 | if (err) | |
1939 | goto ex_put_mtt; | |
1940 | ||
1941 | if (scqn != rcqn) { | |
1942 | err = get_res(dev, slave, scqn, RES_CQ, &scq); | |
1943 | if (err) | |
1944 | goto ex_put_rcq; | |
1945 | } else | |
1946 | scq = rcq; | |
1947 | ||
1948 | if (use_srq) { | |
1949 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); | |
1950 | if (err) | |
1951 | goto ex_put_scq; | |
1952 | } | |
1953 | ||
1954 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
1955 | if (err) | |
1956 | goto ex_put_srq; | |
1957 | atomic_inc(&mtt->ref_count); | |
1958 | qp->mtt = mtt; | |
1959 | atomic_inc(&rcq->ref_count); | |
1960 | qp->rcq = rcq; | |
1961 | atomic_inc(&scq->ref_count); | |
1962 | qp->scq = scq; | |
1963 | ||
1964 | if (scqn != rcqn) | |
1965 | put_res(dev, slave, scqn, RES_CQ); | |
1966 | ||
1967 | if (use_srq) { | |
1968 | atomic_inc(&srq->ref_count); | |
1969 | put_res(dev, slave, srqn, RES_SRQ); | |
1970 | qp->srq = srq; | |
1971 | } | |
1972 | put_res(dev, slave, rcqn, RES_CQ); | |
2b8fb286 | 1973 | put_res(dev, slave, mtt_base, RES_MTT); |
c82e9aa0 EC |
1974 | res_end_move(dev, slave, RES_QP, qpn); |
1975 | ||
1976 | return 0; | |
1977 | ||
1978 | ex_put_srq: | |
1979 | if (use_srq) | |
1980 | put_res(dev, slave, srqn, RES_SRQ); | |
1981 | ex_put_scq: | |
1982 | if (scqn != rcqn) | |
1983 | put_res(dev, slave, scqn, RES_CQ); | |
1984 | ex_put_rcq: | |
1985 | put_res(dev, slave, rcqn, RES_CQ); | |
1986 | ex_put_mtt: | |
2b8fb286 | 1987 | put_res(dev, slave, mtt_base, RES_MTT); |
c82e9aa0 EC |
1988 | ex_abort: |
1989 | res_abort_move(dev, slave, RES_QP, qpn); | |
1990 | ||
1991 | return err; | |
1992 | } | |
1993 | ||
2b8fb286 | 1994 | static int eq_get_mtt_addr(struct mlx4_eq_context *eqc) |
c82e9aa0 EC |
1995 | { |
1996 | return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8; | |
1997 | } | |
1998 | ||
1999 | static int eq_get_mtt_size(struct mlx4_eq_context *eqc) | |
2000 | { | |
2001 | int log_eq_size = eqc->log_eq_size & 0x1f; | |
2002 | int page_shift = (eqc->log_page_size & 0x3f) + 12; | |
2003 | ||
2004 | if (log_eq_size + 5 < page_shift) | |
2005 | return 1; | |
2006 | ||
2007 | return 1 << (log_eq_size + 5 - page_shift); | |
2008 | } | |
2009 | ||
2b8fb286 | 2010 | static int cq_get_mtt_addr(struct mlx4_cq_context *cqc) |
c82e9aa0 EC |
2011 | { |
2012 | return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8; | |
2013 | } | |
2014 | ||
2015 | static int cq_get_mtt_size(struct mlx4_cq_context *cqc) | |
2016 | { | |
2017 | int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f; | |
2018 | int page_shift = (cqc->log_page_size & 0x3f) + 12; | |
2019 | ||
2020 | if (log_cq_size + 5 < page_shift) | |
2021 | return 1; | |
2022 | ||
2023 | return 1 << (log_cq_size + 5 - page_shift); | |
2024 | } | |
2025 | ||
2026 | int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave, | |
2027 | struct mlx4_vhcr *vhcr, | |
2028 | struct mlx4_cmd_mailbox *inbox, | |
2029 | struct mlx4_cmd_mailbox *outbox, | |
2030 | struct mlx4_cmd_info *cmd) | |
2031 | { | |
2032 | int err; | |
2033 | int eqn = vhcr->in_modifier; | |
2034 | int res_id = (slave << 8) | eqn; | |
2035 | struct mlx4_eq_context *eqc = inbox->buf; | |
2b8fb286 | 2036 | int mtt_base = eq_get_mtt_addr(eqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
2037 | int mtt_size = eq_get_mtt_size(eqc); |
2038 | struct res_eq *eq; | |
2039 | struct res_mtt *mtt; | |
2040 | ||
2041 | err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0); | |
2042 | if (err) | |
2043 | return err; | |
2044 | err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq); | |
2045 | if (err) | |
2046 | goto out_add; | |
2047 | ||
2b8fb286 | 2048 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
2049 | if (err) |
2050 | goto out_move; | |
2051 | ||
2052 | err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); | |
2053 | if (err) | |
2054 | goto out_put; | |
2055 | ||
2056 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2057 | if (err) | |
2058 | goto out_put; | |
2059 | ||
2060 | atomic_inc(&mtt->ref_count); | |
2061 | eq->mtt = mtt; | |
2062 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2063 | res_end_move(dev, slave, RES_EQ, res_id); | |
2064 | return 0; | |
2065 | ||
2066 | out_put: | |
2067 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2068 | out_move: | |
2069 | res_abort_move(dev, slave, RES_EQ, res_id); | |
2070 | out_add: | |
2071 | rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); | |
2072 | return err; | |
2073 | } | |
2074 | ||
2075 | static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start, | |
2076 | int len, struct res_mtt **res) | |
2077 | { | |
2078 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2079 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2080 | struct res_mtt *mtt; | |
2081 | int err = -EINVAL; | |
2082 | ||
2083 | spin_lock_irq(mlx4_tlock(dev)); | |
2084 | list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT], | |
2085 | com.list) { | |
2086 | if (!check_mtt_range(dev, slave, start, len, mtt)) { | |
2087 | *res = mtt; | |
2088 | mtt->com.from_state = mtt->com.state; | |
2089 | mtt->com.state = RES_MTT_BUSY; | |
2090 | err = 0; | |
2091 | break; | |
2092 | } | |
2093 | } | |
2094 | spin_unlock_irq(mlx4_tlock(dev)); | |
2095 | ||
2096 | return err; | |
2097 | } | |
2098 | ||
2099 | int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave, | |
2100 | struct mlx4_vhcr *vhcr, | |
2101 | struct mlx4_cmd_mailbox *inbox, | |
2102 | struct mlx4_cmd_mailbox *outbox, | |
2103 | struct mlx4_cmd_info *cmd) | |
2104 | { | |
2105 | struct mlx4_mtt mtt; | |
2106 | __be64 *page_list = inbox->buf; | |
2107 | u64 *pg_list = (u64 *)page_list; | |
2108 | int i; | |
2109 | struct res_mtt *rmtt = NULL; | |
2110 | int start = be64_to_cpu(page_list[0]); | |
2111 | int npages = vhcr->in_modifier; | |
2112 | int err; | |
2113 | ||
2114 | err = get_containing_mtt(dev, slave, start, npages, &rmtt); | |
2115 | if (err) | |
2116 | return err; | |
2117 | ||
2118 | /* Call the SW implementation of write_mtt: | |
2119 | * - Prepare a dummy mtt struct | |
2120 | * - Translate inbox contents to simple addresses in host endianess */ | |
2b8fb286 MA |
2121 | mtt.offset = 0; /* TBD this is broken but I don't handle it since |
2122 | we don't really use it */ | |
c82e9aa0 EC |
2123 | mtt.order = 0; |
2124 | mtt.page_shift = 0; | |
2125 | for (i = 0; i < npages; ++i) | |
2126 | pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL); | |
2127 | ||
2128 | err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages, | |
2129 | ((u64 *)page_list + 2)); | |
2130 | ||
2131 | if (rmtt) | |
2132 | put_res(dev, slave, rmtt->com.res_id, RES_MTT); | |
2133 | ||
2134 | return err; | |
2135 | } | |
2136 | ||
2137 | int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave, | |
2138 | struct mlx4_vhcr *vhcr, | |
2139 | struct mlx4_cmd_mailbox *inbox, | |
2140 | struct mlx4_cmd_mailbox *outbox, | |
2141 | struct mlx4_cmd_info *cmd) | |
2142 | { | |
2143 | int eqn = vhcr->in_modifier; | |
2144 | int res_id = eqn | (slave << 8); | |
2145 | struct res_eq *eq; | |
2146 | int err; | |
2147 | ||
2148 | err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq); | |
2149 | if (err) | |
2150 | return err; | |
2151 | ||
2152 | err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL); | |
2153 | if (err) | |
2154 | goto ex_abort; | |
2155 | ||
2156 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2157 | if (err) | |
2158 | goto ex_put; | |
2159 | ||
2160 | atomic_dec(&eq->mtt->ref_count); | |
2161 | put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); | |
2162 | res_end_move(dev, slave, RES_EQ, res_id); | |
2163 | rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); | |
2164 | ||
2165 | return 0; | |
2166 | ||
2167 | ex_put: | |
2168 | put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); | |
2169 | ex_abort: | |
2170 | res_abort_move(dev, slave, RES_EQ, res_id); | |
2171 | ||
2172 | return err; | |
2173 | } | |
2174 | ||
2175 | int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe) | |
2176 | { | |
2177 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2178 | struct mlx4_slave_event_eq_info *event_eq; | |
2179 | struct mlx4_cmd_mailbox *mailbox; | |
2180 | u32 in_modifier = 0; | |
2181 | int err; | |
2182 | int res_id; | |
2183 | struct res_eq *req; | |
2184 | ||
2185 | if (!priv->mfunc.master.slave_state) | |
2186 | return -EINVAL; | |
2187 | ||
803143fb | 2188 | event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type]; |
c82e9aa0 EC |
2189 | |
2190 | /* Create the event only if the slave is registered */ | |
803143fb | 2191 | if (event_eq->eqn < 0) |
c82e9aa0 EC |
2192 | return 0; |
2193 | ||
2194 | mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]); | |
2195 | res_id = (slave << 8) | event_eq->eqn; | |
2196 | err = get_res(dev, slave, res_id, RES_EQ, &req); | |
2197 | if (err) | |
2198 | goto unlock; | |
2199 | ||
2200 | if (req->com.from_state != RES_EQ_HW) { | |
2201 | err = -EINVAL; | |
2202 | goto put; | |
2203 | } | |
2204 | ||
2205 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
2206 | if (IS_ERR(mailbox)) { | |
2207 | err = PTR_ERR(mailbox); | |
2208 | goto put; | |
2209 | } | |
2210 | ||
2211 | if (eqe->type == MLX4_EVENT_TYPE_CMD) { | |
2212 | ++event_eq->token; | |
2213 | eqe->event.cmd.token = cpu_to_be16(event_eq->token); | |
2214 | } | |
2215 | ||
2216 | memcpy(mailbox->buf, (u8 *) eqe, 28); | |
2217 | ||
2218 | in_modifier = (slave & 0xff) | ((event_eq->eqn & 0xff) << 16); | |
2219 | ||
2220 | err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0, | |
2221 | MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B, | |
2222 | MLX4_CMD_NATIVE); | |
2223 | ||
2224 | put_res(dev, slave, res_id, RES_EQ); | |
2225 | mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); | |
2226 | mlx4_free_cmd_mailbox(dev, mailbox); | |
2227 | return err; | |
2228 | ||
2229 | put: | |
2230 | put_res(dev, slave, res_id, RES_EQ); | |
2231 | ||
2232 | unlock: | |
2233 | mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); | |
2234 | return err; | |
2235 | } | |
2236 | ||
2237 | int mlx4_QUERY_EQ_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 eqn = vhcr->in_modifier; | |
2244 | int res_id = eqn | (slave << 8); | |
2245 | struct res_eq *eq; | |
2246 | int err; | |
2247 | ||
2248 | err = get_res(dev, slave, res_id, RES_EQ, &eq); | |
2249 | if (err) | |
2250 | return err; | |
2251 | ||
2252 | if (eq->com.from_state != RES_EQ_HW) { | |
2253 | err = -EINVAL; | |
2254 | goto ex_put; | |
2255 | } | |
2256 | ||
2257 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2258 | ||
2259 | ex_put: | |
2260 | put_res(dev, slave, res_id, RES_EQ); | |
2261 | return err; | |
2262 | } | |
2263 | ||
2264 | int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2265 | struct mlx4_vhcr *vhcr, | |
2266 | struct mlx4_cmd_mailbox *inbox, | |
2267 | struct mlx4_cmd_mailbox *outbox, | |
2268 | struct mlx4_cmd_info *cmd) | |
2269 | { | |
2270 | int err; | |
2271 | int cqn = vhcr->in_modifier; | |
2272 | struct mlx4_cq_context *cqc = inbox->buf; | |
2b8fb286 | 2273 | int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
2274 | struct res_cq *cq; |
2275 | struct res_mtt *mtt; | |
2276 | ||
2277 | err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq); | |
2278 | if (err) | |
2279 | return err; | |
2b8fb286 | 2280 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
2281 | if (err) |
2282 | goto out_move; | |
2283 | err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); | |
2284 | if (err) | |
2285 | goto out_put; | |
2286 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2287 | if (err) | |
2288 | goto out_put; | |
2289 | atomic_inc(&mtt->ref_count); | |
2290 | cq->mtt = mtt; | |
2291 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2292 | res_end_move(dev, slave, RES_CQ, cqn); | |
2293 | return 0; | |
2294 | ||
2295 | out_put: | |
2296 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2297 | out_move: | |
2298 | res_abort_move(dev, slave, RES_CQ, cqn); | |
2299 | return err; | |
2300 | } | |
2301 | ||
2302 | int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2303 | struct mlx4_vhcr *vhcr, | |
2304 | struct mlx4_cmd_mailbox *inbox, | |
2305 | struct mlx4_cmd_mailbox *outbox, | |
2306 | struct mlx4_cmd_info *cmd) | |
2307 | { | |
2308 | int err; | |
2309 | int cqn = vhcr->in_modifier; | |
2310 | struct res_cq *cq; | |
2311 | ||
2312 | err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq); | |
2313 | if (err) | |
2314 | return err; | |
2315 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2316 | if (err) | |
2317 | goto out_move; | |
2318 | atomic_dec(&cq->mtt->ref_count); | |
2319 | res_end_move(dev, slave, RES_CQ, cqn); | |
2320 | return 0; | |
2321 | ||
2322 | out_move: | |
2323 | res_abort_move(dev, slave, RES_CQ, cqn); | |
2324 | return err; | |
2325 | } | |
2326 | ||
2327 | int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2328 | struct mlx4_vhcr *vhcr, | |
2329 | struct mlx4_cmd_mailbox *inbox, | |
2330 | struct mlx4_cmd_mailbox *outbox, | |
2331 | struct mlx4_cmd_info *cmd) | |
2332 | { | |
2333 | int cqn = vhcr->in_modifier; | |
2334 | struct res_cq *cq; | |
2335 | int err; | |
2336 | ||
2337 | err = get_res(dev, slave, cqn, RES_CQ, &cq); | |
2338 | if (err) | |
2339 | return err; | |
2340 | ||
2341 | if (cq->com.from_state != RES_CQ_HW) | |
2342 | goto ex_put; | |
2343 | ||
2344 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2345 | ex_put: | |
2346 | put_res(dev, slave, cqn, RES_CQ); | |
2347 | ||
2348 | return err; | |
2349 | } | |
2350 | ||
2351 | static int handle_resize(struct mlx4_dev *dev, int slave, | |
2352 | struct mlx4_vhcr *vhcr, | |
2353 | struct mlx4_cmd_mailbox *inbox, | |
2354 | struct mlx4_cmd_mailbox *outbox, | |
2355 | struct mlx4_cmd_info *cmd, | |
2356 | struct res_cq *cq) | |
2357 | { | |
2358 | int err; | |
2359 | struct res_mtt *orig_mtt; | |
2360 | struct res_mtt *mtt; | |
2361 | struct mlx4_cq_context *cqc = inbox->buf; | |
2b8fb286 | 2362 | int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
2363 | |
2364 | err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt); | |
2365 | if (err) | |
2366 | return err; | |
2367 | ||
2368 | if (orig_mtt != cq->mtt) { | |
2369 | err = -EINVAL; | |
2370 | goto ex_put; | |
2371 | } | |
2372 | ||
2b8fb286 | 2373 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
2374 | if (err) |
2375 | goto ex_put; | |
2376 | ||
2377 | err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); | |
2378 | if (err) | |
2379 | goto ex_put1; | |
2380 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2381 | if (err) | |
2382 | goto ex_put1; | |
2383 | atomic_dec(&orig_mtt->ref_count); | |
2384 | put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); | |
2385 | atomic_inc(&mtt->ref_count); | |
2386 | cq->mtt = mtt; | |
2387 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2388 | return 0; | |
2389 | ||
2390 | ex_put1: | |
2391 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2392 | ex_put: | |
2393 | put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); | |
2394 | ||
2395 | return err; | |
2396 | ||
2397 | } | |
2398 | ||
2399 | int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave, | |
2400 | struct mlx4_vhcr *vhcr, | |
2401 | struct mlx4_cmd_mailbox *inbox, | |
2402 | struct mlx4_cmd_mailbox *outbox, | |
2403 | struct mlx4_cmd_info *cmd) | |
2404 | { | |
2405 | int cqn = vhcr->in_modifier; | |
2406 | struct res_cq *cq; | |
2407 | int err; | |
2408 | ||
2409 | err = get_res(dev, slave, cqn, RES_CQ, &cq); | |
2410 | if (err) | |
2411 | return err; | |
2412 | ||
2413 | if (cq->com.from_state != RES_CQ_HW) | |
2414 | goto ex_put; | |
2415 | ||
2416 | if (vhcr->op_modifier == 0) { | |
2417 | err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq); | |
dcf353b1 | 2418 | goto ex_put; |
c82e9aa0 EC |
2419 | } |
2420 | ||
2421 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2422 | ex_put: | |
2423 | put_res(dev, slave, cqn, RES_CQ); | |
2424 | ||
2425 | return err; | |
2426 | } | |
2427 | ||
c82e9aa0 EC |
2428 | static int srq_get_mtt_size(struct mlx4_srq_context *srqc) |
2429 | { | |
2430 | int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf; | |
2431 | int log_rq_stride = srqc->logstride & 7; | |
2432 | int page_shift = (srqc->log_page_size & 0x3f) + 12; | |
2433 | ||
2434 | if (log_srq_size + log_rq_stride + 4 < page_shift) | |
2435 | return 1; | |
2436 | ||
2437 | return 1 << (log_srq_size + log_rq_stride + 4 - page_shift); | |
2438 | } | |
2439 | ||
2440 | int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2441 | struct mlx4_vhcr *vhcr, | |
2442 | struct mlx4_cmd_mailbox *inbox, | |
2443 | struct mlx4_cmd_mailbox *outbox, | |
2444 | struct mlx4_cmd_info *cmd) | |
2445 | { | |
2446 | int err; | |
2447 | int srqn = vhcr->in_modifier; | |
2448 | struct res_mtt *mtt; | |
2449 | struct res_srq *srq; | |
2450 | struct mlx4_srq_context *srqc = inbox->buf; | |
2b8fb286 | 2451 | int mtt_base = srq_get_mtt_addr(srqc) / dev->caps.mtt_entry_sz; |
c82e9aa0 EC |
2452 | |
2453 | if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff)) | |
2454 | return -EINVAL; | |
2455 | ||
2456 | err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq); | |
2457 | if (err) | |
2458 | return err; | |
2b8fb286 | 2459 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
c82e9aa0 EC |
2460 | if (err) |
2461 | goto ex_abort; | |
2462 | err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc), | |
2463 | mtt); | |
2464 | if (err) | |
2465 | goto ex_put_mtt; | |
2466 | ||
c82e9aa0 EC |
2467 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
2468 | if (err) | |
2469 | goto ex_put_mtt; | |
2470 | ||
2471 | atomic_inc(&mtt->ref_count); | |
2472 | srq->mtt = mtt; | |
2473 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2474 | res_end_move(dev, slave, RES_SRQ, srqn); | |
2475 | return 0; | |
2476 | ||
2477 | ex_put_mtt: | |
2478 | put_res(dev, slave, mtt->com.res_id, RES_MTT); | |
2479 | ex_abort: | |
2480 | res_abort_move(dev, slave, RES_SRQ, srqn); | |
2481 | ||
2482 | return err; | |
2483 | } | |
2484 | ||
2485 | int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2486 | struct mlx4_vhcr *vhcr, | |
2487 | struct mlx4_cmd_mailbox *inbox, | |
2488 | struct mlx4_cmd_mailbox *outbox, | |
2489 | struct mlx4_cmd_info *cmd) | |
2490 | { | |
2491 | int err; | |
2492 | int srqn = vhcr->in_modifier; | |
2493 | struct res_srq *srq; | |
2494 | ||
2495 | err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq); | |
2496 | if (err) | |
2497 | return err; | |
2498 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2499 | if (err) | |
2500 | goto ex_abort; | |
2501 | atomic_dec(&srq->mtt->ref_count); | |
2502 | if (srq->cq) | |
2503 | atomic_dec(&srq->cq->ref_count); | |
2504 | res_end_move(dev, slave, RES_SRQ, srqn); | |
2505 | ||
2506 | return 0; | |
2507 | ||
2508 | ex_abort: | |
2509 | res_abort_move(dev, slave, RES_SRQ, srqn); | |
2510 | ||
2511 | return err; | |
2512 | } | |
2513 | ||
2514 | int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2515 | struct mlx4_vhcr *vhcr, | |
2516 | struct mlx4_cmd_mailbox *inbox, | |
2517 | struct mlx4_cmd_mailbox *outbox, | |
2518 | struct mlx4_cmd_info *cmd) | |
2519 | { | |
2520 | int err; | |
2521 | int srqn = vhcr->in_modifier; | |
2522 | struct res_srq *srq; | |
2523 | ||
2524 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); | |
2525 | if (err) | |
2526 | return err; | |
2527 | if (srq->com.from_state != RES_SRQ_HW) { | |
2528 | err = -EBUSY; | |
2529 | goto out; | |
2530 | } | |
2531 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2532 | out: | |
2533 | put_res(dev, slave, srqn, RES_SRQ); | |
2534 | return err; | |
2535 | } | |
2536 | ||
2537 | int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave, | |
2538 | struct mlx4_vhcr *vhcr, | |
2539 | struct mlx4_cmd_mailbox *inbox, | |
2540 | struct mlx4_cmd_mailbox *outbox, | |
2541 | struct mlx4_cmd_info *cmd) | |
2542 | { | |
2543 | int err; | |
2544 | int srqn = vhcr->in_modifier; | |
2545 | struct res_srq *srq; | |
2546 | ||
2547 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); | |
2548 | if (err) | |
2549 | return err; | |
2550 | ||
2551 | if (srq->com.from_state != RES_SRQ_HW) { | |
2552 | err = -EBUSY; | |
2553 | goto out; | |
2554 | } | |
2555 | ||
2556 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2557 | out: | |
2558 | put_res(dev, slave, srqn, RES_SRQ); | |
2559 | return err; | |
2560 | } | |
2561 | ||
2562 | int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave, | |
2563 | struct mlx4_vhcr *vhcr, | |
2564 | struct mlx4_cmd_mailbox *inbox, | |
2565 | struct mlx4_cmd_mailbox *outbox, | |
2566 | struct mlx4_cmd_info *cmd) | |
2567 | { | |
2568 | int err; | |
2569 | int qpn = vhcr->in_modifier & 0x7fffff; | |
2570 | struct res_qp *qp; | |
2571 | ||
2572 | err = get_res(dev, slave, qpn, RES_QP, &qp); | |
2573 | if (err) | |
2574 | return err; | |
2575 | if (qp->com.from_state != RES_QP_HW) { | |
2576 | err = -EBUSY; | |
2577 | goto out; | |
2578 | } | |
2579 | ||
2580 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2581 | out: | |
2582 | put_res(dev, slave, qpn, RES_QP); | |
2583 | return err; | |
2584 | } | |
2585 | ||
2586 | int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave, | |
2587 | struct mlx4_vhcr *vhcr, | |
2588 | struct mlx4_cmd_mailbox *inbox, | |
2589 | struct mlx4_cmd_mailbox *outbox, | |
2590 | struct mlx4_cmd_info *cmd) | |
2591 | { | |
2592 | struct mlx4_qp_context *qpc = inbox->buf + 8; | |
2593 | ||
2594 | update_ud_gid(dev, qpc, (u8)slave); | |
2595 | ||
2596 | return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2597 | } | |
2598 | ||
2599 | int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave, | |
2600 | struct mlx4_vhcr *vhcr, | |
2601 | struct mlx4_cmd_mailbox *inbox, | |
2602 | struct mlx4_cmd_mailbox *outbox, | |
2603 | struct mlx4_cmd_info *cmd) | |
2604 | { | |
2605 | int err; | |
2606 | int qpn = vhcr->in_modifier & 0x7fffff; | |
2607 | struct res_qp *qp; | |
2608 | ||
2609 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0); | |
2610 | if (err) | |
2611 | return err; | |
2612 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2613 | if (err) | |
2614 | goto ex_abort; | |
2615 | ||
2616 | atomic_dec(&qp->mtt->ref_count); | |
2617 | atomic_dec(&qp->rcq->ref_count); | |
2618 | atomic_dec(&qp->scq->ref_count); | |
2619 | if (qp->srq) | |
2620 | atomic_dec(&qp->srq->ref_count); | |
2621 | res_end_move(dev, slave, RES_QP, qpn); | |
2622 | return 0; | |
2623 | ||
2624 | ex_abort: | |
2625 | res_abort_move(dev, slave, RES_QP, qpn); | |
2626 | ||
2627 | return err; | |
2628 | } | |
2629 | ||
2630 | static struct res_gid *find_gid(struct mlx4_dev *dev, int slave, | |
2631 | struct res_qp *rqp, u8 *gid) | |
2632 | { | |
2633 | struct res_gid *res; | |
2634 | ||
2635 | list_for_each_entry(res, &rqp->mcg_list, list) { | |
2636 | if (!memcmp(res->gid, gid, 16)) | |
2637 | return res; | |
2638 | } | |
2639 | return NULL; | |
2640 | } | |
2641 | ||
2642 | static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, | |
9f5b6c63 EE |
2643 | u8 *gid, enum mlx4_protocol prot, |
2644 | enum mlx4_steer_type steer) | |
c82e9aa0 EC |
2645 | { |
2646 | struct res_gid *res; | |
2647 | int err; | |
2648 | ||
2649 | res = kzalloc(sizeof *res, GFP_KERNEL); | |
2650 | if (!res) | |
2651 | return -ENOMEM; | |
2652 | ||
2653 | spin_lock_irq(&rqp->mcg_spl); | |
2654 | if (find_gid(dev, slave, rqp, gid)) { | |
2655 | kfree(res); | |
2656 | err = -EEXIST; | |
2657 | } else { | |
2658 | memcpy(res->gid, gid, 16); | |
2659 | res->prot = prot; | |
9f5b6c63 | 2660 | res->steer = steer; |
c82e9aa0 EC |
2661 | list_add_tail(&res->list, &rqp->mcg_list); |
2662 | err = 0; | |
2663 | } | |
2664 | spin_unlock_irq(&rqp->mcg_spl); | |
2665 | ||
2666 | return err; | |
2667 | } | |
2668 | ||
2669 | static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, | |
9f5b6c63 EE |
2670 | u8 *gid, enum mlx4_protocol prot, |
2671 | enum mlx4_steer_type steer) | |
c82e9aa0 EC |
2672 | { |
2673 | struct res_gid *res; | |
2674 | int err; | |
2675 | ||
2676 | spin_lock_irq(&rqp->mcg_spl); | |
2677 | res = find_gid(dev, slave, rqp, gid); | |
9f5b6c63 | 2678 | if (!res || res->prot != prot || res->steer != steer) |
c82e9aa0 EC |
2679 | err = -EINVAL; |
2680 | else { | |
2681 | list_del(&res->list); | |
2682 | kfree(res); | |
2683 | err = 0; | |
2684 | } | |
2685 | spin_unlock_irq(&rqp->mcg_spl); | |
2686 | ||
2687 | return err; | |
2688 | } | |
2689 | ||
2690 | int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave, | |
2691 | struct mlx4_vhcr *vhcr, | |
2692 | struct mlx4_cmd_mailbox *inbox, | |
2693 | struct mlx4_cmd_mailbox *outbox, | |
2694 | struct mlx4_cmd_info *cmd) | |
2695 | { | |
2696 | struct mlx4_qp qp; /* dummy for calling attach/detach */ | |
2697 | u8 *gid = inbox->buf; | |
2698 | enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7; | |
162344ed | 2699 | int err; |
c82e9aa0 EC |
2700 | int qpn; |
2701 | struct res_qp *rqp; | |
2702 | int attach = vhcr->op_modifier; | |
2703 | int block_loopback = vhcr->in_modifier >> 31; | |
2704 | u8 steer_type_mask = 2; | |
75c6062c | 2705 | enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1; |
c82e9aa0 EC |
2706 | |
2707 | qpn = vhcr->in_modifier & 0xffffff; | |
2708 | err = get_res(dev, slave, qpn, RES_QP, &rqp); | |
2709 | if (err) | |
2710 | return err; | |
2711 | ||
2712 | qp.qpn = qpn; | |
2713 | if (attach) { | |
9f5b6c63 | 2714 | err = add_mcg_res(dev, slave, rqp, gid, prot, type); |
c82e9aa0 EC |
2715 | if (err) |
2716 | goto ex_put; | |
2717 | ||
2718 | err = mlx4_qp_attach_common(dev, &qp, gid, | |
2719 | block_loopback, prot, type); | |
2720 | if (err) | |
2721 | goto ex_rem; | |
2722 | } else { | |
9f5b6c63 | 2723 | err = rem_mcg_res(dev, slave, rqp, gid, prot, type); |
c82e9aa0 EC |
2724 | if (err) |
2725 | goto ex_put; | |
2726 | err = mlx4_qp_detach_common(dev, &qp, gid, prot, type); | |
2727 | } | |
2728 | ||
2729 | put_res(dev, slave, qpn, RES_QP); | |
2730 | return 0; | |
2731 | ||
2732 | ex_rem: | |
2733 | /* ignore error return below, already in error */ | |
162344ed | 2734 | (void) rem_mcg_res(dev, slave, rqp, gid, prot, type); |
c82e9aa0 EC |
2735 | ex_put: |
2736 | put_res(dev, slave, qpn, RES_QP); | |
2737 | ||
2738 | return err; | |
2739 | } | |
2740 | ||
8fcfb4db HHZ |
2741 | int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, |
2742 | struct mlx4_vhcr *vhcr, | |
2743 | struct mlx4_cmd_mailbox *inbox, | |
2744 | struct mlx4_cmd_mailbox *outbox, | |
2745 | struct mlx4_cmd_info *cmd) | |
2746 | { | |
0ff1fb65 HHZ |
2747 | if (dev->caps.steering_mode != |
2748 | MLX4_STEERING_MODE_DEVICE_MANAGED) | |
2749 | return -EOPNOTSUPP; | |
8fcfb4db HHZ |
2750 | return mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param, |
2751 | vhcr->in_modifier, 0, | |
2752 | MLX4_QP_FLOW_STEERING_ATTACH, | |
2753 | MLX4_CMD_TIME_CLASS_A, | |
2754 | MLX4_CMD_NATIVE); | |
2755 | } | |
2756 | ||
2757 | int mlx4_QP_FLOW_STEERING_DETACH_wrapper(struct mlx4_dev *dev, int slave, | |
2758 | struct mlx4_vhcr *vhcr, | |
2759 | struct mlx4_cmd_mailbox *inbox, | |
2760 | struct mlx4_cmd_mailbox *outbox, | |
2761 | struct mlx4_cmd_info *cmd) | |
2762 | { | |
0ff1fb65 HHZ |
2763 | if (dev->caps.steering_mode != |
2764 | MLX4_STEERING_MODE_DEVICE_MANAGED) | |
2765 | return -EOPNOTSUPP; | |
8fcfb4db HHZ |
2766 | return mlx4_cmd(dev, vhcr->in_param, 0, 0, |
2767 | MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, | |
2768 | MLX4_CMD_NATIVE); | |
2769 | } | |
2770 | ||
c82e9aa0 EC |
2771 | enum { |
2772 | BUSY_MAX_RETRIES = 10 | |
2773 | }; | |
2774 | ||
2775 | int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave, | |
2776 | struct mlx4_vhcr *vhcr, | |
2777 | struct mlx4_cmd_mailbox *inbox, | |
2778 | struct mlx4_cmd_mailbox *outbox, | |
2779 | struct mlx4_cmd_info *cmd) | |
2780 | { | |
2781 | int err; | |
2782 | int index = vhcr->in_modifier & 0xffff; | |
2783 | ||
2784 | err = get_res(dev, slave, index, RES_COUNTER, NULL); | |
2785 | if (err) | |
2786 | return err; | |
2787 | ||
2788 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); | |
2789 | put_res(dev, slave, index, RES_COUNTER); | |
2790 | return err; | |
2791 | } | |
2792 | ||
2793 | static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp) | |
2794 | { | |
2795 | struct res_gid *rgid; | |
2796 | struct res_gid *tmp; | |
c82e9aa0 EC |
2797 | struct mlx4_qp qp; /* dummy for calling attach/detach */ |
2798 | ||
2799 | list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) { | |
2800 | qp.qpn = rqp->local_qpn; | |
162344ed OG |
2801 | (void) mlx4_qp_detach_common(dev, &qp, rgid->gid, rgid->prot, |
2802 | rgid->steer); | |
c82e9aa0 EC |
2803 | list_del(&rgid->list); |
2804 | kfree(rgid); | |
2805 | } | |
2806 | } | |
2807 | ||
2808 | static int _move_all_busy(struct mlx4_dev *dev, int slave, | |
2809 | enum mlx4_resource type, int print) | |
2810 | { | |
2811 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2812 | struct mlx4_resource_tracker *tracker = | |
2813 | &priv->mfunc.master.res_tracker; | |
2814 | struct list_head *rlist = &tracker->slave_list[slave].res_list[type]; | |
2815 | struct res_common *r; | |
2816 | struct res_common *tmp; | |
2817 | int busy; | |
2818 | ||
2819 | busy = 0; | |
2820 | spin_lock_irq(mlx4_tlock(dev)); | |
2821 | list_for_each_entry_safe(r, tmp, rlist, list) { | |
2822 | if (r->owner == slave) { | |
2823 | if (!r->removing) { | |
2824 | if (r->state == RES_ANY_BUSY) { | |
2825 | if (print) | |
2826 | mlx4_dbg(dev, | |
aa1ec3dd | 2827 | "%s id 0x%llx is busy\n", |
c82e9aa0 EC |
2828 | ResourceType(type), |
2829 | r->res_id); | |
2830 | ++busy; | |
2831 | } else { | |
2832 | r->from_state = r->state; | |
2833 | r->state = RES_ANY_BUSY; | |
2834 | r->removing = 1; | |
2835 | } | |
2836 | } | |
2837 | } | |
2838 | } | |
2839 | spin_unlock_irq(mlx4_tlock(dev)); | |
2840 | ||
2841 | return busy; | |
2842 | } | |
2843 | ||
2844 | static int move_all_busy(struct mlx4_dev *dev, int slave, | |
2845 | enum mlx4_resource type) | |
2846 | { | |
2847 | unsigned long begin; | |
2848 | int busy; | |
2849 | ||
2850 | begin = jiffies; | |
2851 | do { | |
2852 | busy = _move_all_busy(dev, slave, type, 0); | |
2853 | if (time_after(jiffies, begin + 5 * HZ)) | |
2854 | break; | |
2855 | if (busy) | |
2856 | cond_resched(); | |
2857 | } while (busy); | |
2858 | ||
2859 | if (busy) | |
2860 | busy = _move_all_busy(dev, slave, type, 1); | |
2861 | ||
2862 | return busy; | |
2863 | } | |
2864 | static void rem_slave_qps(struct mlx4_dev *dev, int slave) | |
2865 | { | |
2866 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2867 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2868 | struct list_head *qp_list = | |
2869 | &tracker->slave_list[slave].res_list[RES_QP]; | |
2870 | struct res_qp *qp; | |
2871 | struct res_qp *tmp; | |
2872 | int state; | |
2873 | u64 in_param; | |
2874 | int qpn; | |
2875 | int err; | |
2876 | ||
2877 | err = move_all_busy(dev, slave, RES_QP); | |
2878 | if (err) | |
2879 | mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy" | |
2880 | "for slave %d\n", slave); | |
2881 | ||
2882 | spin_lock_irq(mlx4_tlock(dev)); | |
2883 | list_for_each_entry_safe(qp, tmp, qp_list, com.list) { | |
2884 | spin_unlock_irq(mlx4_tlock(dev)); | |
2885 | if (qp->com.owner == slave) { | |
2886 | qpn = qp->com.res_id; | |
2887 | detach_qp(dev, slave, qp); | |
2888 | state = qp->com.from_state; | |
2889 | while (state != 0) { | |
2890 | switch (state) { | |
2891 | case RES_QP_RESERVED: | |
2892 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 HHZ |
2893 | rb_erase(&qp->com.node, |
2894 | &tracker->res_tree[RES_QP]); | |
c82e9aa0 EC |
2895 | list_del(&qp->com.list); |
2896 | spin_unlock_irq(mlx4_tlock(dev)); | |
2897 | kfree(qp); | |
2898 | state = 0; | |
2899 | break; | |
2900 | case RES_QP_MAPPED: | |
2901 | if (!valid_reserved(dev, slave, qpn)) | |
2902 | __mlx4_qp_free_icm(dev, qpn); | |
2903 | state = RES_QP_RESERVED; | |
2904 | break; | |
2905 | case RES_QP_HW: | |
2906 | in_param = slave; | |
2907 | err = mlx4_cmd(dev, in_param, | |
2908 | qp->local_qpn, 2, | |
2909 | MLX4_CMD_2RST_QP, | |
2910 | MLX4_CMD_TIME_CLASS_A, | |
2911 | MLX4_CMD_NATIVE); | |
2912 | if (err) | |
2913 | mlx4_dbg(dev, "rem_slave_qps: failed" | |
2914 | " to move slave %d qpn %d to" | |
2915 | " reset\n", slave, | |
2916 | qp->local_qpn); | |
2917 | atomic_dec(&qp->rcq->ref_count); | |
2918 | atomic_dec(&qp->scq->ref_count); | |
2919 | atomic_dec(&qp->mtt->ref_count); | |
2920 | if (qp->srq) | |
2921 | atomic_dec(&qp->srq->ref_count); | |
2922 | state = RES_QP_MAPPED; | |
2923 | break; | |
2924 | default: | |
2925 | state = 0; | |
2926 | } | |
2927 | } | |
2928 | } | |
2929 | spin_lock_irq(mlx4_tlock(dev)); | |
2930 | } | |
2931 | spin_unlock_irq(mlx4_tlock(dev)); | |
2932 | } | |
2933 | ||
2934 | static void rem_slave_srqs(struct mlx4_dev *dev, int slave) | |
2935 | { | |
2936 | struct mlx4_priv *priv = mlx4_priv(dev); | |
2937 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
2938 | struct list_head *srq_list = | |
2939 | &tracker->slave_list[slave].res_list[RES_SRQ]; | |
2940 | struct res_srq *srq; | |
2941 | struct res_srq *tmp; | |
2942 | int state; | |
2943 | u64 in_param; | |
2944 | LIST_HEAD(tlist); | |
2945 | int srqn; | |
2946 | int err; | |
2947 | ||
2948 | err = move_all_busy(dev, slave, RES_SRQ); | |
2949 | if (err) | |
2950 | mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs to " | |
2951 | "busy for slave %d\n", slave); | |
2952 | ||
2953 | spin_lock_irq(mlx4_tlock(dev)); | |
2954 | list_for_each_entry_safe(srq, tmp, srq_list, com.list) { | |
2955 | spin_unlock_irq(mlx4_tlock(dev)); | |
2956 | if (srq->com.owner == slave) { | |
2957 | srqn = srq->com.res_id; | |
2958 | state = srq->com.from_state; | |
2959 | while (state != 0) { | |
2960 | switch (state) { | |
2961 | case RES_SRQ_ALLOCATED: | |
2962 | __mlx4_srq_free_icm(dev, srqn); | |
2963 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 HHZ |
2964 | rb_erase(&srq->com.node, |
2965 | &tracker->res_tree[RES_SRQ]); | |
c82e9aa0 EC |
2966 | list_del(&srq->com.list); |
2967 | spin_unlock_irq(mlx4_tlock(dev)); | |
2968 | kfree(srq); | |
2969 | state = 0; | |
2970 | break; | |
2971 | ||
2972 | case RES_SRQ_HW: | |
2973 | in_param = slave; | |
2974 | err = mlx4_cmd(dev, in_param, srqn, 1, | |
2975 | MLX4_CMD_HW2SW_SRQ, | |
2976 | MLX4_CMD_TIME_CLASS_A, | |
2977 | MLX4_CMD_NATIVE); | |
2978 | if (err) | |
2979 | mlx4_dbg(dev, "rem_slave_srqs: failed" | |
2980 | " to move slave %d srq %d to" | |
2981 | " SW ownership\n", | |
2982 | slave, srqn); | |
2983 | ||
2984 | atomic_dec(&srq->mtt->ref_count); | |
2985 | if (srq->cq) | |
2986 | atomic_dec(&srq->cq->ref_count); | |
2987 | state = RES_SRQ_ALLOCATED; | |
2988 | break; | |
2989 | ||
2990 | default: | |
2991 | state = 0; | |
2992 | } | |
2993 | } | |
2994 | } | |
2995 | spin_lock_irq(mlx4_tlock(dev)); | |
2996 | } | |
2997 | spin_unlock_irq(mlx4_tlock(dev)); | |
2998 | } | |
2999 | ||
3000 | static void rem_slave_cqs(struct mlx4_dev *dev, int slave) | |
3001 | { | |
3002 | struct mlx4_priv *priv = mlx4_priv(dev); | |
3003 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
3004 | struct list_head *cq_list = | |
3005 | &tracker->slave_list[slave].res_list[RES_CQ]; | |
3006 | struct res_cq *cq; | |
3007 | struct res_cq *tmp; | |
3008 | int state; | |
3009 | u64 in_param; | |
3010 | LIST_HEAD(tlist); | |
3011 | int cqn; | |
3012 | int err; | |
3013 | ||
3014 | err = move_all_busy(dev, slave, RES_CQ); | |
3015 | if (err) | |
3016 | mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs to " | |
3017 | "busy for slave %d\n", slave); | |
3018 | ||
3019 | spin_lock_irq(mlx4_tlock(dev)); | |
3020 | list_for_each_entry_safe(cq, tmp, cq_list, com.list) { | |
3021 | spin_unlock_irq(mlx4_tlock(dev)); | |
3022 | if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) { | |
3023 | cqn = cq->com.res_id; | |
3024 | state = cq->com.from_state; | |
3025 | while (state != 0) { | |
3026 | switch (state) { | |
3027 | case RES_CQ_ALLOCATED: | |
3028 | __mlx4_cq_free_icm(dev, cqn); | |
3029 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 HHZ |
3030 | rb_erase(&cq->com.node, |
3031 | &tracker->res_tree[RES_CQ]); | |
c82e9aa0 EC |
3032 | list_del(&cq->com.list); |
3033 | spin_unlock_irq(mlx4_tlock(dev)); | |
3034 | kfree(cq); | |
3035 | state = 0; | |
3036 | break; | |
3037 | ||
3038 | case RES_CQ_HW: | |
3039 | in_param = slave; | |
3040 | err = mlx4_cmd(dev, in_param, cqn, 1, | |
3041 | MLX4_CMD_HW2SW_CQ, | |
3042 | MLX4_CMD_TIME_CLASS_A, | |
3043 | MLX4_CMD_NATIVE); | |
3044 | if (err) | |
3045 | mlx4_dbg(dev, "rem_slave_cqs: failed" | |
3046 | " to move slave %d cq %d to" | |
3047 | " SW ownership\n", | |
3048 | slave, cqn); | |
3049 | atomic_dec(&cq->mtt->ref_count); | |
3050 | state = RES_CQ_ALLOCATED; | |
3051 | break; | |
3052 | ||
3053 | default: | |
3054 | state = 0; | |
3055 | } | |
3056 | } | |
3057 | } | |
3058 | spin_lock_irq(mlx4_tlock(dev)); | |
3059 | } | |
3060 | spin_unlock_irq(mlx4_tlock(dev)); | |
3061 | } | |
3062 | ||
3063 | static void rem_slave_mrs(struct mlx4_dev *dev, int slave) | |
3064 | { | |
3065 | struct mlx4_priv *priv = mlx4_priv(dev); | |
3066 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
3067 | struct list_head *mpt_list = | |
3068 | &tracker->slave_list[slave].res_list[RES_MPT]; | |
3069 | struct res_mpt *mpt; | |
3070 | struct res_mpt *tmp; | |
3071 | int state; | |
3072 | u64 in_param; | |
3073 | LIST_HEAD(tlist); | |
3074 | int mptn; | |
3075 | int err; | |
3076 | ||
3077 | err = move_all_busy(dev, slave, RES_MPT); | |
3078 | if (err) | |
3079 | mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts to " | |
3080 | "busy for slave %d\n", slave); | |
3081 | ||
3082 | spin_lock_irq(mlx4_tlock(dev)); | |
3083 | list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) { | |
3084 | spin_unlock_irq(mlx4_tlock(dev)); | |
3085 | if (mpt->com.owner == slave) { | |
3086 | mptn = mpt->com.res_id; | |
3087 | state = mpt->com.from_state; | |
3088 | while (state != 0) { | |
3089 | switch (state) { | |
3090 | case RES_MPT_RESERVED: | |
3091 | __mlx4_mr_release(dev, mpt->key); | |
3092 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 HHZ |
3093 | rb_erase(&mpt->com.node, |
3094 | &tracker->res_tree[RES_MPT]); | |
c82e9aa0 EC |
3095 | list_del(&mpt->com.list); |
3096 | spin_unlock_irq(mlx4_tlock(dev)); | |
3097 | kfree(mpt); | |
3098 | state = 0; | |
3099 | break; | |
3100 | ||
3101 | case RES_MPT_MAPPED: | |
3102 | __mlx4_mr_free_icm(dev, mpt->key); | |
3103 | state = RES_MPT_RESERVED; | |
3104 | break; | |
3105 | ||
3106 | case RES_MPT_HW: | |
3107 | in_param = slave; | |
3108 | err = mlx4_cmd(dev, in_param, mptn, 0, | |
3109 | MLX4_CMD_HW2SW_MPT, | |
3110 | MLX4_CMD_TIME_CLASS_A, | |
3111 | MLX4_CMD_NATIVE); | |
3112 | if (err) | |
3113 | mlx4_dbg(dev, "rem_slave_mrs: failed" | |
3114 | " to move slave %d mpt %d to" | |
3115 | " SW ownership\n", | |
3116 | slave, mptn); | |
3117 | if (mpt->mtt) | |
3118 | atomic_dec(&mpt->mtt->ref_count); | |
3119 | state = RES_MPT_MAPPED; | |
3120 | break; | |
3121 | default: | |
3122 | state = 0; | |
3123 | } | |
3124 | } | |
3125 | } | |
3126 | spin_lock_irq(mlx4_tlock(dev)); | |
3127 | } | |
3128 | spin_unlock_irq(mlx4_tlock(dev)); | |
3129 | } | |
3130 | ||
3131 | static void rem_slave_mtts(struct mlx4_dev *dev, int slave) | |
3132 | { | |
3133 | struct mlx4_priv *priv = mlx4_priv(dev); | |
3134 | struct mlx4_resource_tracker *tracker = | |
3135 | &priv->mfunc.master.res_tracker; | |
3136 | struct list_head *mtt_list = | |
3137 | &tracker->slave_list[slave].res_list[RES_MTT]; | |
3138 | struct res_mtt *mtt; | |
3139 | struct res_mtt *tmp; | |
3140 | int state; | |
3141 | LIST_HEAD(tlist); | |
3142 | int base; | |
3143 | int err; | |
3144 | ||
3145 | err = move_all_busy(dev, slave, RES_MTT); | |
3146 | if (err) | |
3147 | mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts to " | |
3148 | "busy for slave %d\n", slave); | |
3149 | ||
3150 | spin_lock_irq(mlx4_tlock(dev)); | |
3151 | list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) { | |
3152 | spin_unlock_irq(mlx4_tlock(dev)); | |
3153 | if (mtt->com.owner == slave) { | |
3154 | base = mtt->com.res_id; | |
3155 | state = mtt->com.from_state; | |
3156 | while (state != 0) { | |
3157 | switch (state) { | |
3158 | case RES_MTT_ALLOCATED: | |
3159 | __mlx4_free_mtt_range(dev, base, | |
3160 | mtt->order); | |
3161 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 HHZ |
3162 | rb_erase(&mtt->com.node, |
3163 | &tracker->res_tree[RES_MTT]); | |
c82e9aa0 EC |
3164 | list_del(&mtt->com.list); |
3165 | spin_unlock_irq(mlx4_tlock(dev)); | |
3166 | kfree(mtt); | |
3167 | state = 0; | |
3168 | break; | |
3169 | ||
3170 | default: | |
3171 | state = 0; | |
3172 | } | |
3173 | } | |
3174 | } | |
3175 | spin_lock_irq(mlx4_tlock(dev)); | |
3176 | } | |
3177 | spin_unlock_irq(mlx4_tlock(dev)); | |
3178 | } | |
3179 | ||
3180 | static void rem_slave_eqs(struct mlx4_dev *dev, int slave) | |
3181 | { | |
3182 | struct mlx4_priv *priv = mlx4_priv(dev); | |
3183 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
3184 | struct list_head *eq_list = | |
3185 | &tracker->slave_list[slave].res_list[RES_EQ]; | |
3186 | struct res_eq *eq; | |
3187 | struct res_eq *tmp; | |
3188 | int err; | |
3189 | int state; | |
3190 | LIST_HEAD(tlist); | |
3191 | int eqn; | |
3192 | struct mlx4_cmd_mailbox *mailbox; | |
3193 | ||
3194 | err = move_all_busy(dev, slave, RES_EQ); | |
3195 | if (err) | |
3196 | mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs to " | |
3197 | "busy for slave %d\n", slave); | |
3198 | ||
3199 | spin_lock_irq(mlx4_tlock(dev)); | |
3200 | list_for_each_entry_safe(eq, tmp, eq_list, com.list) { | |
3201 | spin_unlock_irq(mlx4_tlock(dev)); | |
3202 | if (eq->com.owner == slave) { | |
3203 | eqn = eq->com.res_id; | |
3204 | state = eq->com.from_state; | |
3205 | while (state != 0) { | |
3206 | switch (state) { | |
3207 | case RES_EQ_RESERVED: | |
3208 | spin_lock_irq(mlx4_tlock(dev)); | |
4af1c048 HHZ |
3209 | rb_erase(&eq->com.node, |
3210 | &tracker->res_tree[RES_EQ]); | |
c82e9aa0 EC |
3211 | list_del(&eq->com.list); |
3212 | spin_unlock_irq(mlx4_tlock(dev)); | |
3213 | kfree(eq); | |
3214 | state = 0; | |
3215 | break; | |
3216 | ||
3217 | case RES_EQ_HW: | |
3218 | mailbox = mlx4_alloc_cmd_mailbox(dev); | |
3219 | if (IS_ERR(mailbox)) { | |
3220 | cond_resched(); | |
3221 | continue; | |
3222 | } | |
3223 | err = mlx4_cmd_box(dev, slave, 0, | |
3224 | eqn & 0xff, 0, | |
3225 | MLX4_CMD_HW2SW_EQ, | |
3226 | MLX4_CMD_TIME_CLASS_A, | |
3227 | MLX4_CMD_NATIVE); | |
eb71d0d6 JM |
3228 | if (err) |
3229 | mlx4_dbg(dev, "rem_slave_eqs: failed" | |
3230 | " to move slave %d eqs %d to" | |
3231 | " SW ownership\n", slave, eqn); | |
c82e9aa0 | 3232 | mlx4_free_cmd_mailbox(dev, mailbox); |
eb71d0d6 JM |
3233 | atomic_dec(&eq->mtt->ref_count); |
3234 | state = RES_EQ_RESERVED; | |
c82e9aa0 EC |
3235 | break; |
3236 | ||
3237 | default: | |
3238 | state = 0; | |
3239 | } | |
3240 | } | |
3241 | } | |
3242 | spin_lock_irq(mlx4_tlock(dev)); | |
3243 | } | |
3244 | spin_unlock_irq(mlx4_tlock(dev)); | |
3245 | } | |
3246 | ||
ba062d52 JM |
3247 | static void rem_slave_counters(struct mlx4_dev *dev, int slave) |
3248 | { | |
3249 | struct mlx4_priv *priv = mlx4_priv(dev); | |
3250 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
3251 | struct list_head *counter_list = | |
3252 | &tracker->slave_list[slave].res_list[RES_COUNTER]; | |
3253 | struct res_counter *counter; | |
3254 | struct res_counter *tmp; | |
3255 | int err; | |
3256 | int index; | |
3257 | ||
3258 | err = move_all_busy(dev, slave, RES_COUNTER); | |
3259 | if (err) | |
3260 | mlx4_warn(dev, "rem_slave_counters: Could not move all counters to " | |
3261 | "busy for slave %d\n", slave); | |
3262 | ||
3263 | spin_lock_irq(mlx4_tlock(dev)); | |
3264 | list_for_each_entry_safe(counter, tmp, counter_list, com.list) { | |
3265 | if (counter->com.owner == slave) { | |
3266 | index = counter->com.res_id; | |
4af1c048 HHZ |
3267 | rb_erase(&counter->com.node, |
3268 | &tracker->res_tree[RES_COUNTER]); | |
ba062d52 JM |
3269 | list_del(&counter->com.list); |
3270 | kfree(counter); | |
3271 | __mlx4_counter_free(dev, index); | |
3272 | } | |
3273 | } | |
3274 | spin_unlock_irq(mlx4_tlock(dev)); | |
3275 | } | |
3276 | ||
3277 | static void rem_slave_xrcdns(struct mlx4_dev *dev, int slave) | |
3278 | { | |
3279 | struct mlx4_priv *priv = mlx4_priv(dev); | |
3280 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; | |
3281 | struct list_head *xrcdn_list = | |
3282 | &tracker->slave_list[slave].res_list[RES_XRCD]; | |
3283 | struct res_xrcdn *xrcd; | |
3284 | struct res_xrcdn *tmp; | |
3285 | int err; | |
3286 | int xrcdn; | |
3287 | ||
3288 | err = move_all_busy(dev, slave, RES_XRCD); | |
3289 | if (err) | |
3290 | mlx4_warn(dev, "rem_slave_xrcdns: Could not move all xrcdns to " | |
3291 | "busy for slave %d\n", slave); | |
3292 | ||
3293 | spin_lock_irq(mlx4_tlock(dev)); | |
3294 | list_for_each_entry_safe(xrcd, tmp, xrcdn_list, com.list) { | |
3295 | if (xrcd->com.owner == slave) { | |
3296 | xrcdn = xrcd->com.res_id; | |
4af1c048 | 3297 | rb_erase(&xrcd->com.node, &tracker->res_tree[RES_XRCD]); |
ba062d52 JM |
3298 | list_del(&xrcd->com.list); |
3299 | kfree(xrcd); | |
3300 | __mlx4_xrcd_free(dev, xrcdn); | |
3301 | } | |
3302 | } | |
3303 | spin_unlock_irq(mlx4_tlock(dev)); | |
3304 | } | |
3305 | ||
c82e9aa0 EC |
3306 | void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) |
3307 | { | |
3308 | struct mlx4_priv *priv = mlx4_priv(dev); | |
3309 | ||
3310 | mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); | |
3311 | /*VLAN*/ | |
3312 | rem_slave_macs(dev, slave); | |
3313 | rem_slave_qps(dev, slave); | |
3314 | rem_slave_srqs(dev, slave); | |
3315 | rem_slave_cqs(dev, slave); | |
3316 | rem_slave_mrs(dev, slave); | |
3317 | rem_slave_eqs(dev, slave); | |
3318 | rem_slave_mtts(dev, slave); | |
ba062d52 JM |
3319 | rem_slave_counters(dev, slave); |
3320 | rem_slave_xrcdns(dev, slave); | |
c82e9aa0 EC |
3321 | mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); |
3322 | } |