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225c7b1f RD |
1 | /* |
2 | * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. | |
51a379d0 | 3 | * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. |
225c7b1f RD |
4 | * |
5 | * This software is available to you under a choice of one of two | |
6 | * licenses. You may choose to be licensed under the terms of the GNU | |
7 | * General Public License (GPL) Version 2, available from the file | |
8 | * COPYING in the main directory of this source tree, or the | |
9 | * OpenIB.org BSD license below: | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or | |
12 | * without modification, are permitted provided that the following | |
13 | * conditions are met: | |
14 | * | |
15 | * - Redistributions of source code must retain the above | |
16 | * copyright notice, this list of conditions and the following | |
17 | * disclaimer. | |
18 | * | |
19 | * - Redistributions in binary form must reproduce the above | |
20 | * copyright notice, this list of conditions and the following | |
21 | * disclaimer in the documentation and/or other materials | |
22 | * provided with the distribution. | |
23 | * | |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
31 | * SOFTWARE. | |
32 | */ | |
33 | ||
34 | #include <linux/mlx4/cq.h> | |
35 | #include <linux/mlx4/qp.h> | |
f3cca4b1 | 36 | #include <linux/mlx4/srq.h> |
5a0e3ad6 | 37 | #include <linux/slab.h> |
225c7b1f RD |
38 | |
39 | #include "mlx4_ib.h" | |
40 | #include "user.h" | |
41 | ||
42 | static void mlx4_ib_cq_comp(struct mlx4_cq *cq) | |
43 | { | |
44 | struct ib_cq *ibcq = &to_mibcq(cq)->ibcq; | |
45 | ibcq->comp_handler(ibcq, ibcq->cq_context); | |
46 | } | |
47 | ||
48 | static void mlx4_ib_cq_event(struct mlx4_cq *cq, enum mlx4_event type) | |
49 | { | |
50 | struct ib_event event; | |
51 | struct ib_cq *ibcq; | |
52 | ||
53 | if (type != MLX4_EVENT_TYPE_CQ_ERROR) { | |
987c8f8f | 54 | pr_warn("Unexpected event type %d " |
225c7b1f RD |
55 | "on CQ %06x\n", type, cq->cqn); |
56 | return; | |
57 | } | |
58 | ||
59 | ibcq = &to_mibcq(cq)->ibcq; | |
60 | if (ibcq->event_handler) { | |
61 | event.device = ibcq->device; | |
62 | event.event = IB_EVENT_CQ_ERR; | |
63 | event.element.cq = ibcq; | |
64 | ibcq->event_handler(&event, ibcq->cq_context); | |
65 | } | |
66 | } | |
67 | ||
68 | static void *get_cqe_from_buf(struct mlx4_ib_cq_buf *buf, int n) | |
69 | { | |
08ff3235 | 70 | return mlx4_buf_offset(&buf->buf, n * buf->entry_size); |
225c7b1f RD |
71 | } |
72 | ||
73 | static void *get_cqe(struct mlx4_ib_cq *cq, int n) | |
74 | { | |
75 | return get_cqe_from_buf(&cq->buf, n); | |
76 | } | |
77 | ||
78 | static void *get_sw_cqe(struct mlx4_ib_cq *cq, int n) | |
79 | { | |
80 | struct mlx4_cqe *cqe = get_cqe(cq, n & cq->ibcq.cqe); | |
08ff3235 | 81 | struct mlx4_cqe *tcqe = ((cq->buf.entry_size == 64) ? (cqe + 1) : cqe); |
225c7b1f | 82 | |
08ff3235 | 83 | return (!!(tcqe->owner_sr_opcode & MLX4_CQE_OWNER_MASK) ^ |
225c7b1f RD |
84 | !!(n & (cq->ibcq.cqe + 1))) ? NULL : cqe; |
85 | } | |
86 | ||
87 | static struct mlx4_cqe *next_cqe_sw(struct mlx4_ib_cq *cq) | |
88 | { | |
89 | return get_sw_cqe(cq, cq->mcq.cons_index); | |
90 | } | |
91 | ||
3fdcb97f EC |
92 | int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period) |
93 | { | |
94 | struct mlx4_ib_cq *mcq = to_mcq(cq); | |
95 | struct mlx4_ib_dev *dev = to_mdev(cq->device); | |
96 | ||
97 | return mlx4_cq_modify(dev->dev, &mcq->mcq, cq_count, cq_period); | |
98 | } | |
99 | ||
bbf8eed1 VS |
100 | static int mlx4_ib_alloc_cq_buf(struct mlx4_ib_dev *dev, struct mlx4_ib_cq_buf *buf, int nent) |
101 | { | |
102 | int err; | |
103 | ||
08ff3235 | 104 | err = mlx4_buf_alloc(dev->dev, nent * dev->dev->caps.cqe_size, |
40f2287b | 105 | PAGE_SIZE * 2, &buf->buf, GFP_KERNEL); |
bbf8eed1 VS |
106 | |
107 | if (err) | |
108 | goto out; | |
109 | ||
08ff3235 | 110 | buf->entry_size = dev->dev->caps.cqe_size; |
bbf8eed1 VS |
111 | err = mlx4_mtt_init(dev->dev, buf->buf.npages, buf->buf.page_shift, |
112 | &buf->mtt); | |
113 | if (err) | |
114 | goto err_buf; | |
115 | ||
40f2287b | 116 | err = mlx4_buf_write_mtt(dev->dev, &buf->mtt, &buf->buf, GFP_KERNEL); |
bbf8eed1 VS |
117 | if (err) |
118 | goto err_mtt; | |
119 | ||
120 | return 0; | |
121 | ||
122 | err_mtt: | |
123 | mlx4_mtt_cleanup(dev->dev, &buf->mtt); | |
124 | ||
125 | err_buf: | |
08ff3235 | 126 | mlx4_buf_free(dev->dev, nent * buf->entry_size, &buf->buf); |
bbf8eed1 VS |
127 | |
128 | out: | |
129 | return err; | |
130 | } | |
131 | ||
132 | static void mlx4_ib_free_cq_buf(struct mlx4_ib_dev *dev, struct mlx4_ib_cq_buf *buf, int cqe) | |
133 | { | |
08ff3235 | 134 | mlx4_buf_free(dev->dev, (cqe + 1) * buf->entry_size, &buf->buf); |
bbf8eed1 VS |
135 | } |
136 | ||
137 | static int mlx4_ib_get_cq_umem(struct mlx4_ib_dev *dev, struct ib_ucontext *context, | |
138 | struct mlx4_ib_cq_buf *buf, struct ib_umem **umem, | |
139 | u64 buf_addr, int cqe) | |
140 | { | |
141 | int err; | |
08ff3235 | 142 | int cqe_size = dev->dev->caps.cqe_size; |
bbf8eed1 | 143 | |
08ff3235 | 144 | *umem = ib_umem_get(context, buf_addr, cqe * cqe_size, |
cb9fbc5c | 145 | IB_ACCESS_LOCAL_WRITE, 1); |
bbf8eed1 VS |
146 | if (IS_ERR(*umem)) |
147 | return PTR_ERR(*umem); | |
148 | ||
149 | err = mlx4_mtt_init(dev->dev, ib_umem_page_count(*umem), | |
150 | ilog2((*umem)->page_size), &buf->mtt); | |
151 | if (err) | |
152 | goto err_buf; | |
153 | ||
154 | err = mlx4_ib_umem_write_mtt(dev, &buf->mtt, *umem); | |
155 | if (err) | |
156 | goto err_mtt; | |
157 | ||
158 | return 0; | |
159 | ||
160 | err_mtt: | |
161 | mlx4_mtt_cleanup(dev->dev, &buf->mtt); | |
162 | ||
163 | err_buf: | |
164 | ib_umem_release(*umem); | |
165 | ||
166 | return err; | |
167 | } | |
168 | ||
225c7b1f RD |
169 | struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector, |
170 | struct ib_ucontext *context, | |
171 | struct ib_udata *udata) | |
172 | { | |
173 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
174 | struct mlx4_ib_cq *cq; | |
175 | struct mlx4_uar *uar; | |
225c7b1f RD |
176 | int err; |
177 | ||
178 | if (entries < 1 || entries > dev->dev->caps.max_cqes) | |
179 | return ERR_PTR(-EINVAL); | |
180 | ||
181 | cq = kmalloc(sizeof *cq, GFP_KERNEL); | |
182 | if (!cq) | |
183 | return ERR_PTR(-ENOMEM); | |
184 | ||
185 | entries = roundup_pow_of_two(entries + 1); | |
186 | cq->ibcq.cqe = entries - 1; | |
bbf8eed1 | 187 | mutex_init(&cq->resize_mutex); |
225c7b1f | 188 | spin_lock_init(&cq->lock); |
bbf8eed1 VS |
189 | cq->resize_buf = NULL; |
190 | cq->resize_umem = NULL; | |
225c7b1f RD |
191 | |
192 | if (context) { | |
193 | struct mlx4_ib_create_cq ucmd; | |
194 | ||
195 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { | |
196 | err = -EFAULT; | |
197 | goto err_cq; | |
198 | } | |
199 | ||
bbf8eed1 VS |
200 | err = mlx4_ib_get_cq_umem(dev, context, &cq->buf, &cq->umem, |
201 | ucmd.buf_addr, entries); | |
225c7b1f | 202 | if (err) |
bbf8eed1 | 203 | goto err_cq; |
225c7b1f RD |
204 | |
205 | err = mlx4_ib_db_map_user(to_mucontext(context), ucmd.db_addr, | |
206 | &cq->db); | |
207 | if (err) | |
208 | goto err_mtt; | |
209 | ||
210 | uar = &to_mucontext(context)->uar; | |
211 | } else { | |
40f2287b | 212 | err = mlx4_db_alloc(dev->dev, &cq->db, 1, GFP_KERNEL); |
225c7b1f RD |
213 | if (err) |
214 | goto err_cq; | |
215 | ||
216 | cq->mcq.set_ci_db = cq->db.db; | |
217 | cq->mcq.arm_db = cq->db.db + 1; | |
218 | *cq->mcq.set_ci_db = 0; | |
219 | *cq->mcq.arm_db = 0; | |
220 | ||
bbf8eed1 | 221 | err = mlx4_ib_alloc_cq_buf(dev, &cq->buf, entries); |
225c7b1f | 222 | if (err) |
bbf8eed1 | 223 | goto err_db; |
225c7b1f RD |
224 | |
225 | uar = &dev->priv_uar; | |
226 | } | |
227 | ||
e605b743 SP |
228 | if (dev->eq_table) |
229 | vector = dev->eq_table[vector % ibdev->num_comp_vectors]; | |
230 | ||
225c7b1f | 231 | err = mlx4_cq_alloc(dev->dev, entries, &cq->buf.mtt, uar, |
ec693d47 | 232 | cq->db.dma, &cq->mcq, vector, 0, 0); |
225c7b1f RD |
233 | if (err) |
234 | goto err_dbmap; | |
235 | ||
3dca0f42 MB |
236 | if (context) |
237 | cq->mcq.tasklet_ctx.comp = mlx4_ib_cq_comp; | |
238 | else | |
239 | cq->mcq.comp = mlx4_ib_cq_comp; | |
225c7b1f RD |
240 | cq->mcq.event = mlx4_ib_cq_event; |
241 | ||
242 | if (context) | |
243 | if (ib_copy_to_udata(udata, &cq->mcq.cqn, sizeof (__u32))) { | |
244 | err = -EFAULT; | |
245 | goto err_dbmap; | |
246 | } | |
247 | ||
248 | return &cq->ibcq; | |
249 | ||
250 | err_dbmap: | |
251 | if (context) | |
252 | mlx4_ib_db_unmap_user(to_mucontext(context), &cq->db); | |
253 | ||
254 | err_mtt: | |
255 | mlx4_mtt_cleanup(dev->dev, &cq->buf.mtt); | |
256 | ||
225c7b1f RD |
257 | if (context) |
258 | ib_umem_release(cq->umem); | |
259 | else | |
3ae15e16 | 260 | mlx4_ib_free_cq_buf(dev, &cq->buf, cq->ibcq.cqe); |
225c7b1f RD |
261 | |
262 | err_db: | |
263 | if (!context) | |
6296883c | 264 | mlx4_db_free(dev->dev, &cq->db); |
225c7b1f RD |
265 | |
266 | err_cq: | |
267 | kfree(cq); | |
268 | ||
269 | return ERR_PTR(err); | |
270 | } | |
271 | ||
bbf8eed1 VS |
272 | static int mlx4_alloc_resize_buf(struct mlx4_ib_dev *dev, struct mlx4_ib_cq *cq, |
273 | int entries) | |
274 | { | |
275 | int err; | |
276 | ||
277 | if (cq->resize_buf) | |
278 | return -EBUSY; | |
279 | ||
280 | cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); | |
281 | if (!cq->resize_buf) | |
282 | return -ENOMEM; | |
283 | ||
284 | err = mlx4_ib_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); | |
285 | if (err) { | |
286 | kfree(cq->resize_buf); | |
287 | cq->resize_buf = NULL; | |
288 | return err; | |
289 | } | |
290 | ||
291 | cq->resize_buf->cqe = entries - 1; | |
292 | ||
293 | return 0; | |
294 | } | |
295 | ||
296 | static int mlx4_alloc_resize_umem(struct mlx4_ib_dev *dev, struct mlx4_ib_cq *cq, | |
297 | int entries, struct ib_udata *udata) | |
298 | { | |
299 | struct mlx4_ib_resize_cq ucmd; | |
300 | int err; | |
301 | ||
302 | if (cq->resize_umem) | |
303 | return -EBUSY; | |
304 | ||
305 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) | |
306 | return -EFAULT; | |
307 | ||
308 | cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); | |
309 | if (!cq->resize_buf) | |
310 | return -ENOMEM; | |
311 | ||
312 | err = mlx4_ib_get_cq_umem(dev, cq->umem->context, &cq->resize_buf->buf, | |
313 | &cq->resize_umem, ucmd.buf_addr, entries); | |
314 | if (err) { | |
315 | kfree(cq->resize_buf); | |
316 | cq->resize_buf = NULL; | |
317 | return err; | |
318 | } | |
319 | ||
320 | cq->resize_buf->cqe = entries - 1; | |
321 | ||
322 | return 0; | |
323 | } | |
324 | ||
325 | static int mlx4_ib_get_outstanding_cqes(struct mlx4_ib_cq *cq) | |
326 | { | |
327 | u32 i; | |
328 | ||
329 | i = cq->mcq.cons_index; | |
93b80ac2 | 330 | while (get_sw_cqe(cq, i)) |
bbf8eed1 VS |
331 | ++i; |
332 | ||
333 | return i - cq->mcq.cons_index; | |
334 | } | |
335 | ||
336 | static void mlx4_ib_cq_resize_copy_cqes(struct mlx4_ib_cq *cq) | |
337 | { | |
7798dbf4 | 338 | struct mlx4_cqe *cqe, *new_cqe; |
bbf8eed1 | 339 | int i; |
08ff3235 OG |
340 | int cqe_size = cq->buf.entry_size; |
341 | int cqe_inc = cqe_size == 64 ? 1 : 0; | |
bbf8eed1 VS |
342 | |
343 | i = cq->mcq.cons_index; | |
344 | cqe = get_cqe(cq, i & cq->ibcq.cqe); | |
08ff3235 OG |
345 | cqe += cqe_inc; |
346 | ||
bbf8eed1 | 347 | while ((cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) != MLX4_CQE_OPCODE_RESIZE) { |
7798dbf4 JM |
348 | new_cqe = get_cqe_from_buf(&cq->resize_buf->buf, |
349 | (i + 1) & cq->resize_buf->cqe); | |
08ff3235 OG |
350 | memcpy(new_cqe, get_cqe(cq, i & cq->ibcq.cqe), cqe_size); |
351 | new_cqe += cqe_inc; | |
352 | ||
7798dbf4 JM |
353 | new_cqe->owner_sr_opcode = (cqe->owner_sr_opcode & ~MLX4_CQE_OWNER_MASK) | |
354 | (((i + 1) & (cq->resize_buf->cqe + 1)) ? MLX4_CQE_OWNER_MASK : 0); | |
bbf8eed1 | 355 | cqe = get_cqe(cq, ++i & cq->ibcq.cqe); |
08ff3235 | 356 | cqe += cqe_inc; |
bbf8eed1 VS |
357 | } |
358 | ++cq->mcq.cons_index; | |
359 | } | |
360 | ||
361 | int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) | |
362 | { | |
363 | struct mlx4_ib_dev *dev = to_mdev(ibcq->device); | |
364 | struct mlx4_ib_cq *cq = to_mcq(ibcq); | |
42ab01c3 | 365 | struct mlx4_mtt mtt; |
bbf8eed1 VS |
366 | int outst_cqe; |
367 | int err; | |
368 | ||
369 | mutex_lock(&cq->resize_mutex); | |
370 | ||
79d3da9c | 371 | if (entries < 1) { |
bbf8eed1 VS |
372 | err = -EINVAL; |
373 | goto out; | |
374 | } | |
375 | ||
376 | entries = roundup_pow_of_two(entries + 1); | |
377 | if (entries == ibcq->cqe + 1) { | |
378 | err = 0; | |
379 | goto out; | |
380 | } | |
381 | ||
79d3da9c EC |
382 | if (entries > dev->dev->caps.max_cqes) { |
383 | err = -EINVAL; | |
384 | goto out; | |
385 | } | |
386 | ||
bbf8eed1 VS |
387 | if (ibcq->uobject) { |
388 | err = mlx4_alloc_resize_umem(dev, cq, entries, udata); | |
389 | if (err) | |
390 | goto out; | |
391 | } else { | |
025dfdaf | 392 | /* Can't be smaller than the number of outstanding CQEs */ |
bbf8eed1 VS |
393 | outst_cqe = mlx4_ib_get_outstanding_cqes(cq); |
394 | if (entries < outst_cqe + 1) { | |
395 | err = 0; | |
396 | goto out; | |
397 | } | |
398 | ||
399 | err = mlx4_alloc_resize_buf(dev, cq, entries); | |
400 | if (err) | |
401 | goto out; | |
402 | } | |
403 | ||
42ab01c3 JM |
404 | mtt = cq->buf.mtt; |
405 | ||
bbf8eed1 VS |
406 | err = mlx4_cq_resize(dev->dev, &cq->mcq, entries, &cq->resize_buf->buf.mtt); |
407 | if (err) | |
408 | goto err_buf; | |
409 | ||
42ab01c3 | 410 | mlx4_mtt_cleanup(dev->dev, &mtt); |
bbf8eed1 VS |
411 | if (ibcq->uobject) { |
412 | cq->buf = cq->resize_buf->buf; | |
413 | cq->ibcq.cqe = cq->resize_buf->cqe; | |
414 | ib_umem_release(cq->umem); | |
415 | cq->umem = cq->resize_umem; | |
416 | ||
417 | kfree(cq->resize_buf); | |
418 | cq->resize_buf = NULL; | |
419 | cq->resize_umem = NULL; | |
420 | } else { | |
3afa9f19 VS |
421 | struct mlx4_ib_cq_buf tmp_buf; |
422 | int tmp_cqe = 0; | |
423 | ||
bbf8eed1 VS |
424 | spin_lock_irq(&cq->lock); |
425 | if (cq->resize_buf) { | |
426 | mlx4_ib_cq_resize_copy_cqes(cq); | |
3afa9f19 VS |
427 | tmp_buf = cq->buf; |
428 | tmp_cqe = cq->ibcq.cqe; | |
bbf8eed1 VS |
429 | cq->buf = cq->resize_buf->buf; |
430 | cq->ibcq.cqe = cq->resize_buf->cqe; | |
431 | ||
432 | kfree(cq->resize_buf); | |
433 | cq->resize_buf = NULL; | |
434 | } | |
435 | spin_unlock_irq(&cq->lock); | |
3afa9f19 VS |
436 | |
437 | if (tmp_cqe) | |
438 | mlx4_ib_free_cq_buf(dev, &tmp_buf, tmp_cqe); | |
bbf8eed1 VS |
439 | } |
440 | ||
441 | goto out; | |
442 | ||
443 | err_buf: | |
42ab01c3 | 444 | mlx4_mtt_cleanup(dev->dev, &cq->resize_buf->buf.mtt); |
bbf8eed1 VS |
445 | if (!ibcq->uobject) |
446 | mlx4_ib_free_cq_buf(dev, &cq->resize_buf->buf, | |
447 | cq->resize_buf->cqe); | |
448 | ||
449 | kfree(cq->resize_buf); | |
450 | cq->resize_buf = NULL; | |
451 | ||
452 | if (cq->resize_umem) { | |
453 | ib_umem_release(cq->resize_umem); | |
454 | cq->resize_umem = NULL; | |
455 | } | |
456 | ||
457 | out: | |
458 | mutex_unlock(&cq->resize_mutex); | |
08ff3235 | 459 | |
bbf8eed1 VS |
460 | return err; |
461 | } | |
462 | ||
225c7b1f RD |
463 | int mlx4_ib_destroy_cq(struct ib_cq *cq) |
464 | { | |
465 | struct mlx4_ib_dev *dev = to_mdev(cq->device); | |
466 | struct mlx4_ib_cq *mcq = to_mcq(cq); | |
467 | ||
468 | mlx4_cq_free(dev->dev, &mcq->mcq); | |
469 | mlx4_mtt_cleanup(dev->dev, &mcq->buf.mtt); | |
470 | ||
471 | if (cq->uobject) { | |
472 | mlx4_ib_db_unmap_user(to_mucontext(cq->uobject->context), &mcq->db); | |
473 | ib_umem_release(mcq->umem); | |
474 | } else { | |
3ae15e16 | 475 | mlx4_ib_free_cq_buf(dev, &mcq->buf, cq->cqe); |
6296883c | 476 | mlx4_db_free(dev->dev, &mcq->db); |
225c7b1f RD |
477 | } |
478 | ||
479 | kfree(mcq); | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
484 | static void dump_cqe(void *cqe) | |
485 | { | |
486 | __be32 *buf = cqe; | |
487 | ||
987c8f8f | 488 | pr_debug("CQE contents %08x %08x %08x %08x %08x %08x %08x %08x\n", |
225c7b1f RD |
489 | be32_to_cpu(buf[0]), be32_to_cpu(buf[1]), be32_to_cpu(buf[2]), |
490 | be32_to_cpu(buf[3]), be32_to_cpu(buf[4]), be32_to_cpu(buf[5]), | |
491 | be32_to_cpu(buf[6]), be32_to_cpu(buf[7])); | |
492 | } | |
493 | ||
494 | static void mlx4_ib_handle_error_cqe(struct mlx4_err_cqe *cqe, | |
495 | struct ib_wc *wc) | |
496 | { | |
497 | if (cqe->syndrome == MLX4_CQE_SYNDROME_LOCAL_QP_OP_ERR) { | |
987c8f8f | 498 | pr_debug("local QP operation err " |
225c7b1f RD |
499 | "(QPN %06x, WQE index %x, vendor syndrome %02x, " |
500 | "opcode = %02x)\n", | |
501 | be32_to_cpu(cqe->my_qpn), be16_to_cpu(cqe->wqe_index), | |
502 | cqe->vendor_err_syndrome, | |
503 | cqe->owner_sr_opcode & ~MLX4_CQE_OWNER_MASK); | |
504 | dump_cqe(cqe); | |
505 | } | |
506 | ||
507 | switch (cqe->syndrome) { | |
508 | case MLX4_CQE_SYNDROME_LOCAL_LENGTH_ERR: | |
509 | wc->status = IB_WC_LOC_LEN_ERR; | |
510 | break; | |
511 | case MLX4_CQE_SYNDROME_LOCAL_QP_OP_ERR: | |
512 | wc->status = IB_WC_LOC_QP_OP_ERR; | |
513 | break; | |
514 | case MLX4_CQE_SYNDROME_LOCAL_PROT_ERR: | |
515 | wc->status = IB_WC_LOC_PROT_ERR; | |
516 | break; | |
517 | case MLX4_CQE_SYNDROME_WR_FLUSH_ERR: | |
518 | wc->status = IB_WC_WR_FLUSH_ERR; | |
519 | break; | |
520 | case MLX4_CQE_SYNDROME_MW_BIND_ERR: | |
521 | wc->status = IB_WC_MW_BIND_ERR; | |
522 | break; | |
523 | case MLX4_CQE_SYNDROME_BAD_RESP_ERR: | |
524 | wc->status = IB_WC_BAD_RESP_ERR; | |
525 | break; | |
526 | case MLX4_CQE_SYNDROME_LOCAL_ACCESS_ERR: | |
527 | wc->status = IB_WC_LOC_ACCESS_ERR; | |
528 | break; | |
529 | case MLX4_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR: | |
530 | wc->status = IB_WC_REM_INV_REQ_ERR; | |
531 | break; | |
532 | case MLX4_CQE_SYNDROME_REMOTE_ACCESS_ERR: | |
533 | wc->status = IB_WC_REM_ACCESS_ERR; | |
534 | break; | |
535 | case MLX4_CQE_SYNDROME_REMOTE_OP_ERR: | |
536 | wc->status = IB_WC_REM_OP_ERR; | |
537 | break; | |
538 | case MLX4_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR: | |
539 | wc->status = IB_WC_RETRY_EXC_ERR; | |
540 | break; | |
541 | case MLX4_CQE_SYNDROME_RNR_RETRY_EXC_ERR: | |
542 | wc->status = IB_WC_RNR_RETRY_EXC_ERR; | |
543 | break; | |
544 | case MLX4_CQE_SYNDROME_REMOTE_ABORTED_ERR: | |
545 | wc->status = IB_WC_REM_ABORT_ERR; | |
546 | break; | |
547 | default: | |
548 | wc->status = IB_WC_GENERAL_ERR; | |
549 | break; | |
550 | } | |
551 | ||
552 | wc->vendor_err = cqe->vendor_err_syndrome; | |
553 | } | |
554 | ||
f780a9f1 | 555 | static int mlx4_ib_ipoib_csum_ok(__be16 status, __be16 checksum) |
8ff095ec | 556 | { |
f780a9f1 YP |
557 | return ((status & cpu_to_be16(MLX4_CQE_STATUS_IPV4 | |
558 | MLX4_CQE_STATUS_IPV4F | | |
559 | MLX4_CQE_STATUS_IPV4OPT | | |
560 | MLX4_CQE_STATUS_IPV6 | | |
561 | MLX4_CQE_STATUS_IPOK)) == | |
562 | cpu_to_be16(MLX4_CQE_STATUS_IPV4 | | |
563 | MLX4_CQE_STATUS_IPOK)) && | |
564 | (status & cpu_to_be16(MLX4_CQE_STATUS_UDP | | |
565 | MLX4_CQE_STATUS_TCP)) && | |
8ff095ec EC |
566 | checksum == cpu_to_be16(0xffff); |
567 | } | |
568 | ||
1ffeb2eb | 569 | static int use_tunnel_data(struct mlx4_ib_qp *qp, struct mlx4_ib_cq *cq, struct ib_wc *wc, |
5ea8bbfc | 570 | unsigned tail, struct mlx4_cqe *cqe, int is_eth) |
1ffeb2eb JM |
571 | { |
572 | struct mlx4_ib_proxy_sqp_hdr *hdr; | |
573 | ||
574 | ib_dma_sync_single_for_cpu(qp->ibqp.device, | |
575 | qp->sqp_proxy_rcv[tail].map, | |
576 | sizeof (struct mlx4_ib_proxy_sqp_hdr), | |
577 | DMA_FROM_DEVICE); | |
578 | hdr = (struct mlx4_ib_proxy_sqp_hdr *) (qp->sqp_proxy_rcv[tail].addr); | |
579 | wc->pkey_index = be16_to_cpu(hdr->tun.pkey_index); | |
1ffeb2eb JM |
580 | wc->src_qp = be32_to_cpu(hdr->tun.flags_src_qp) & 0xFFFFFF; |
581 | wc->wc_flags |= (hdr->tun.g_ml_path & 0x80) ? (IB_WC_GRH) : 0; | |
582 | wc->dlid_path_bits = 0; | |
583 | ||
5ea8bbfc JM |
584 | if (is_eth) { |
585 | wc->vlan_id = be16_to_cpu(hdr->tun.sl_vid); | |
586 | memcpy(&(wc->smac[0]), (char *)&hdr->tun.mac_31_0, 4); | |
587 | memcpy(&(wc->smac[4]), (char *)&hdr->tun.slid_mac_47_32, 2); | |
588 | wc->wc_flags |= (IB_WC_WITH_VLAN | IB_WC_WITH_SMAC); | |
589 | } else { | |
590 | wc->slid = be16_to_cpu(hdr->tun.slid_mac_47_32); | |
591 | wc->sl = (u8) (be16_to_cpu(hdr->tun.sl_vid) >> 12); | |
592 | } | |
593 | ||
1ffeb2eb JM |
594 | return 0; |
595 | } | |
596 | ||
225c7b1f RD |
597 | static int mlx4_ib_poll_one(struct mlx4_ib_cq *cq, |
598 | struct mlx4_ib_qp **cur_qp, | |
599 | struct ib_wc *wc) | |
600 | { | |
601 | struct mlx4_cqe *cqe; | |
602 | struct mlx4_qp *mqp; | |
603 | struct mlx4_ib_wq *wq; | |
604 | struct mlx4_ib_srq *srq; | |
f3cca4b1 | 605 | struct mlx4_srq *msrq = NULL; |
225c7b1f RD |
606 | int is_send; |
607 | int is_error; | |
5ea8bbfc | 608 | int is_eth; |
b3226184 | 609 | u32 g_mlpath_rqpn; |
225c7b1f | 610 | u16 wqe_ctr; |
1ffeb2eb | 611 | unsigned tail = 0; |
225c7b1f | 612 | |
bbf8eed1 | 613 | repoll: |
225c7b1f RD |
614 | cqe = next_cqe_sw(cq); |
615 | if (!cqe) | |
616 | return -EAGAIN; | |
617 | ||
08ff3235 OG |
618 | if (cq->buf.entry_size == 64) |
619 | cqe++; | |
620 | ||
225c7b1f RD |
621 | ++cq->mcq.cons_index; |
622 | ||
623 | /* | |
624 | * Make sure we read CQ entry contents after we've checked the | |
625 | * ownership bit. | |
626 | */ | |
627 | rmb(); | |
628 | ||
629 | is_send = cqe->owner_sr_opcode & MLX4_CQE_IS_SEND_MASK; | |
630 | is_error = (cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) == | |
631 | MLX4_CQE_OPCODE_ERROR; | |
632 | ||
ea54b10c JM |
633 | if (unlikely((cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) == MLX4_OPCODE_NOP && |
634 | is_send)) { | |
987c8f8f | 635 | pr_warn("Completion for NOP opcode detected!\n"); |
ea54b10c JM |
636 | return -EINVAL; |
637 | } | |
638 | ||
bbf8eed1 VS |
639 | /* Resize CQ in progress */ |
640 | if (unlikely((cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) == MLX4_CQE_OPCODE_RESIZE)) { | |
641 | if (cq->resize_buf) { | |
642 | struct mlx4_ib_dev *dev = to_mdev(cq->ibcq.device); | |
643 | ||
644 | mlx4_ib_free_cq_buf(dev, &cq->buf, cq->ibcq.cqe); | |
645 | cq->buf = cq->resize_buf->buf; | |
646 | cq->ibcq.cqe = cq->resize_buf->cqe; | |
647 | ||
648 | kfree(cq->resize_buf); | |
649 | cq->resize_buf = NULL; | |
650 | } | |
651 | ||
652 | goto repoll; | |
653 | } | |
654 | ||
225c7b1f | 655 | if (!*cur_qp || |
f780a9f1 | 656 | (be32_to_cpu(cqe->vlan_my_qpn) & MLX4_CQE_QPN_MASK) != (*cur_qp)->mqp.qpn) { |
225c7b1f RD |
657 | /* |
658 | * We do not have to take the QP table lock here, | |
659 | * because CQs will be locked while QPs are removed | |
660 | * from the table. | |
661 | */ | |
662 | mqp = __mlx4_qp_lookup(to_mdev(cq->ibcq.device)->dev, | |
f780a9f1 | 663 | be32_to_cpu(cqe->vlan_my_qpn)); |
225c7b1f | 664 | if (unlikely(!mqp)) { |
987c8f8f | 665 | pr_warn("CQ %06x with entry for unknown QPN %06x\n", |
f780a9f1 | 666 | cq->mcq.cqn, be32_to_cpu(cqe->vlan_my_qpn) & MLX4_CQE_QPN_MASK); |
225c7b1f RD |
667 | return -EINVAL; |
668 | } | |
669 | ||
670 | *cur_qp = to_mibqp(mqp); | |
671 | } | |
672 | ||
673 | wc->qp = &(*cur_qp)->ibqp; | |
674 | ||
f3cca4b1 SP |
675 | if (wc->qp->qp_type == IB_QPT_XRC_TGT) { |
676 | u32 srq_num; | |
677 | g_mlpath_rqpn = be32_to_cpu(cqe->g_mlpath_rqpn); | |
678 | srq_num = g_mlpath_rqpn & 0xffffff; | |
679 | /* SRQ is also in the radix tree */ | |
680 | msrq = mlx4_srq_lookup(to_mdev(cq->ibcq.device)->dev, | |
681 | srq_num); | |
682 | if (unlikely(!msrq)) { | |
683 | pr_warn("CQ %06x with entry for unknown SRQN %06x\n", | |
684 | cq->mcq.cqn, srq_num); | |
685 | return -EINVAL; | |
686 | } | |
687 | } | |
688 | ||
225c7b1f RD |
689 | if (is_send) { |
690 | wq = &(*cur_qp)->sq; | |
ea54b10c JM |
691 | if (!(*cur_qp)->sq_signal_bits) { |
692 | wqe_ctr = be16_to_cpu(cqe->wqe_index); | |
693 | wq->tail += (u16) (wqe_ctr - (u16) wq->tail); | |
694 | } | |
0e6e7416 | 695 | wc->wr_id = wq->wrid[wq->tail & (wq->wqe_cnt - 1)]; |
225c7b1f RD |
696 | ++wq->tail; |
697 | } else if ((*cur_qp)->ibqp.srq) { | |
698 | srq = to_msrq((*cur_qp)->ibqp.srq); | |
699 | wqe_ctr = be16_to_cpu(cqe->wqe_index); | |
700 | wc->wr_id = srq->wrid[wqe_ctr]; | |
701 | mlx4_ib_free_srq_wqe(srq, wqe_ctr); | |
f3cca4b1 SP |
702 | } else if (msrq) { |
703 | srq = to_mibsrq(msrq); | |
704 | wqe_ctr = be16_to_cpu(cqe->wqe_index); | |
705 | wc->wr_id = srq->wrid[wqe_ctr]; | |
706 | mlx4_ib_free_srq_wqe(srq, wqe_ctr); | |
225c7b1f RD |
707 | } else { |
708 | wq = &(*cur_qp)->rq; | |
1ffeb2eb JM |
709 | tail = wq->tail & (wq->wqe_cnt - 1); |
710 | wc->wr_id = wq->wrid[tail]; | |
225c7b1f RD |
711 | ++wq->tail; |
712 | } | |
713 | ||
714 | if (unlikely(is_error)) { | |
715 | mlx4_ib_handle_error_cqe((struct mlx4_err_cqe *) cqe, wc); | |
716 | return 0; | |
717 | } | |
718 | ||
719 | wc->status = IB_WC_SUCCESS; | |
720 | ||
721 | if (is_send) { | |
722 | wc->wc_flags = 0; | |
723 | switch (cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) { | |
724 | case MLX4_OPCODE_RDMA_WRITE_IMM: | |
725 | wc->wc_flags |= IB_WC_WITH_IMM; | |
726 | case MLX4_OPCODE_RDMA_WRITE: | |
727 | wc->opcode = IB_WC_RDMA_WRITE; | |
728 | break; | |
729 | case MLX4_OPCODE_SEND_IMM: | |
730 | wc->wc_flags |= IB_WC_WITH_IMM; | |
731 | case MLX4_OPCODE_SEND: | |
95d04f07 | 732 | case MLX4_OPCODE_SEND_INVAL: |
225c7b1f RD |
733 | wc->opcode = IB_WC_SEND; |
734 | break; | |
735 | case MLX4_OPCODE_RDMA_READ: | |
19891915 | 736 | wc->opcode = IB_WC_RDMA_READ; |
225c7b1f RD |
737 | wc->byte_len = be32_to_cpu(cqe->byte_cnt); |
738 | break; | |
739 | case MLX4_OPCODE_ATOMIC_CS: | |
740 | wc->opcode = IB_WC_COMP_SWAP; | |
741 | wc->byte_len = 8; | |
742 | break; | |
743 | case MLX4_OPCODE_ATOMIC_FA: | |
744 | wc->opcode = IB_WC_FETCH_ADD; | |
745 | wc->byte_len = 8; | |
746 | break; | |
6fa8f719 VS |
747 | case MLX4_OPCODE_MASKED_ATOMIC_CS: |
748 | wc->opcode = IB_WC_MASKED_COMP_SWAP; | |
749 | wc->byte_len = 8; | |
750 | break; | |
751 | case MLX4_OPCODE_MASKED_ATOMIC_FA: | |
752 | wc->opcode = IB_WC_MASKED_FETCH_ADD; | |
753 | wc->byte_len = 8; | |
754 | break; | |
225c7b1f RD |
755 | case MLX4_OPCODE_BIND_MW: |
756 | wc->opcode = IB_WC_BIND_MW; | |
757 | break; | |
b832be1e EC |
758 | case MLX4_OPCODE_LSO: |
759 | wc->opcode = IB_WC_LSO; | |
760 | break; | |
95d04f07 RD |
761 | case MLX4_OPCODE_FMR: |
762 | wc->opcode = IB_WC_FAST_REG_MR; | |
763 | break; | |
764 | case MLX4_OPCODE_LOCAL_INVAL: | |
765 | wc->opcode = IB_WC_LOCAL_INV; | |
766 | break; | |
225c7b1f RD |
767 | } |
768 | } else { | |
769 | wc->byte_len = be32_to_cpu(cqe->byte_cnt); | |
770 | ||
771 | switch (cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) { | |
772 | case MLX4_RECV_OPCODE_RDMA_WRITE_IMM: | |
00f7ec36 SW |
773 | wc->opcode = IB_WC_RECV_RDMA_WITH_IMM; |
774 | wc->wc_flags = IB_WC_WITH_IMM; | |
775 | wc->ex.imm_data = cqe->immed_rss_invalid; | |
225c7b1f | 776 | break; |
95d04f07 RD |
777 | case MLX4_RECV_OPCODE_SEND_INVAL: |
778 | wc->opcode = IB_WC_RECV; | |
779 | wc->wc_flags = IB_WC_WITH_INVALIDATE; | |
780 | wc->ex.invalidate_rkey = be32_to_cpu(cqe->immed_rss_invalid); | |
781 | break; | |
225c7b1f RD |
782 | case MLX4_RECV_OPCODE_SEND: |
783 | wc->opcode = IB_WC_RECV; | |
784 | wc->wc_flags = 0; | |
785 | break; | |
786 | case MLX4_RECV_OPCODE_SEND_IMM: | |
00f7ec36 SW |
787 | wc->opcode = IB_WC_RECV; |
788 | wc->wc_flags = IB_WC_WITH_IMM; | |
789 | wc->ex.imm_data = cqe->immed_rss_invalid; | |
225c7b1f RD |
790 | break; |
791 | } | |
792 | ||
5ea8bbfc JM |
793 | is_eth = (rdma_port_get_link_layer(wc->qp->device, |
794 | (*cur_qp)->port) == | |
795 | IB_LINK_LAYER_ETHERNET); | |
1ffeb2eb JM |
796 | if (mlx4_is_mfunc(to_mdev(cq->ibcq.device)->dev)) { |
797 | if ((*cur_qp)->mlx4_ib_qp_type & | |
798 | (MLX4_IB_QPT_PROXY_SMI_OWNER | | |
799 | MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI)) | |
5ea8bbfc JM |
800 | return use_tunnel_data(*cur_qp, cq, wc, tail, |
801 | cqe, is_eth); | |
1ffeb2eb JM |
802 | } |
803 | ||
225c7b1f | 804 | wc->slid = be16_to_cpu(cqe->rlid); |
b3226184 RD |
805 | g_mlpath_rqpn = be32_to_cpu(cqe->g_mlpath_rqpn); |
806 | wc->src_qp = g_mlpath_rqpn & 0xffffff; | |
807 | wc->dlid_path_bits = (g_mlpath_rqpn >> 24) & 0x7f; | |
808 | wc->wc_flags |= g_mlpath_rqpn & 0x80000000 ? IB_WC_GRH : 0; | |
e1bb7843 | 809 | wc->pkey_index = be32_to_cpu(cqe->immed_rss_invalid) & 0x7f; |
d927d505 OG |
810 | wc->wc_flags |= mlx4_ib_ipoib_csum_ok(cqe->status, |
811 | cqe->checksum) ? IB_WC_IP_CSUM_OK : 0; | |
5ea8bbfc | 812 | if (is_eth) { |
9106c410 | 813 | wc->sl = be16_to_cpu(cqe->sl_vid) >> 13; |
5ea8bbfc JM |
814 | if (be32_to_cpu(cqe->vlan_my_qpn) & |
815 | MLX4_CQE_VLAN_PRESENT_MASK) { | |
816 | wc->vlan_id = be16_to_cpu(cqe->sl_vid) & | |
817 | MLX4_CQE_VID_MASK; | |
818 | } else { | |
819 | wc->vlan_id = 0xffff; | |
820 | } | |
821 | memcpy(wc->smac, cqe->smac, ETH_ALEN); | |
822 | wc->wc_flags |= (IB_WC_WITH_VLAN | IB_WC_WITH_SMAC); | |
297e0dad | 823 | } else { |
5ea8bbfc | 824 | wc->sl = be16_to_cpu(cqe->sl_vid) >> 12; |
297e0dad MS |
825 | wc->vlan_id = 0xffff; |
826 | } | |
225c7b1f RD |
827 | } |
828 | ||
829 | return 0; | |
830 | } | |
831 | ||
832 | int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) | |
833 | { | |
834 | struct mlx4_ib_cq *cq = to_mcq(ibcq); | |
835 | struct mlx4_ib_qp *cur_qp = NULL; | |
836 | unsigned long flags; | |
837 | int npolled; | |
838 | int err = 0; | |
839 | ||
840 | spin_lock_irqsave(&cq->lock, flags); | |
841 | ||
842 | for (npolled = 0; npolled < num_entries; ++npolled) { | |
843 | err = mlx4_ib_poll_one(cq, &cur_qp, wc + npolled); | |
844 | if (err) | |
845 | break; | |
846 | } | |
847 | ||
3616f9ce | 848 | mlx4_cq_set_ci(&cq->mcq); |
225c7b1f RD |
849 | |
850 | spin_unlock_irqrestore(&cq->lock, flags); | |
851 | ||
852 | if (err == 0 || err == -EAGAIN) | |
853 | return npolled; | |
854 | else | |
855 | return err; | |
856 | } | |
857 | ||
858 | int mlx4_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) | |
859 | { | |
860 | mlx4_cq_arm(&to_mcq(ibcq)->mcq, | |
861 | (flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ? | |
862 | MLX4_CQ_DB_REQ_NOT_SOL : MLX4_CQ_DB_REQ_NOT, | |
863 | to_mdev(ibcq->device)->uar_map, | |
864 | MLX4_GET_DOORBELL_LOCK(&to_mdev(ibcq->device)->uar_lock)); | |
865 | ||
866 | return 0; | |
867 | } | |
868 | ||
869 | void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq) | |
870 | { | |
871 | u32 prod_index; | |
872 | int nfreed = 0; | |
082dee32 JM |
873 | struct mlx4_cqe *cqe, *dest; |
874 | u8 owner_bit; | |
08ff3235 | 875 | int cqe_inc = cq->buf.entry_size == 64 ? 1 : 0; |
225c7b1f RD |
876 | |
877 | /* | |
878 | * First we need to find the current producer index, so we | |
879 | * know where to start cleaning from. It doesn't matter if HW | |
880 | * adds new entries after this loop -- the QP we're worried | |
881 | * about is already in RESET, so the new entries won't come | |
882 | * from our QP and therefore don't need to be checked. | |
883 | */ | |
884 | for (prod_index = cq->mcq.cons_index; get_sw_cqe(cq, prod_index); ++prod_index) | |
885 | if (prod_index == cq->mcq.cons_index + cq->ibcq.cqe) | |
886 | break; | |
887 | ||
888 | /* | |
889 | * Now sweep backwards through the CQ, removing CQ entries | |
890 | * that match our QP by copying older entries on top of them. | |
891 | */ | |
892 | while ((int) --prod_index - (int) cq->mcq.cons_index >= 0) { | |
893 | cqe = get_cqe(cq, prod_index & cq->ibcq.cqe); | |
08ff3235 OG |
894 | cqe += cqe_inc; |
895 | ||
f780a9f1 | 896 | if ((be32_to_cpu(cqe->vlan_my_qpn) & MLX4_CQE_QPN_MASK) == qpn) { |
225c7b1f RD |
897 | if (srq && !(cqe->owner_sr_opcode & MLX4_CQE_IS_SEND_MASK)) |
898 | mlx4_ib_free_srq_wqe(srq, be16_to_cpu(cqe->wqe_index)); | |
899 | ++nfreed; | |
082dee32 JM |
900 | } else if (nfreed) { |
901 | dest = get_cqe(cq, (prod_index + nfreed) & cq->ibcq.cqe); | |
08ff3235 OG |
902 | dest += cqe_inc; |
903 | ||
082dee32 JM |
904 | owner_bit = dest->owner_sr_opcode & MLX4_CQE_OWNER_MASK; |
905 | memcpy(dest, cqe, sizeof *cqe); | |
906 | dest->owner_sr_opcode = owner_bit | | |
907 | (dest->owner_sr_opcode & ~MLX4_CQE_OWNER_MASK); | |
908 | } | |
225c7b1f RD |
909 | } |
910 | ||
911 | if (nfreed) { | |
912 | cq->mcq.cons_index += nfreed; | |
913 | /* | |
914 | * Make sure update of buffer contents is done before | |
915 | * updating consumer index. | |
916 | */ | |
917 | wmb(); | |
918 | mlx4_cq_set_ci(&cq->mcq); | |
919 | } | |
920 | } | |
921 | ||
922 | void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq) | |
923 | { | |
924 | spin_lock_irq(&cq->lock); | |
925 | __mlx4_ib_cq_clean(cq, qpn, srq); | |
926 | spin_unlock_irq(&cq->lock); | |
927 | } |