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[PATCH] IB/mthca: allow unaligned memory regions
[linux-block.git] / drivers / infiniband / hw / mthca / mthca_provider.c
CommitLineData
1da177e4
LT		 1/*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 *
32 * $Id: mthca_provider.c 1397 2004-12-28 05:09:00Z roland $
33 */
34
35#include <ib_smi.h>
36
37#include "mthca_dev.h"
38#include "mthca_cmd.h"
39
40static int mthca_query_device(struct ib_device *ibdev,
41 struct ib_device_attr *props)
42{
43 struct ib_smp *in_mad = NULL;
44 struct ib_smp *out_mad = NULL;
45 int err = -ENOMEM;
46 struct mthca_dev* mdev = to_mdev(ibdev);
47
48 u8 status;
49
50 in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
51 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
52 if (!in_mad || !out_mad)
53 goto out;
54
8cf2daf3
RD		 55 memset(props, 0, sizeof props);
56
1da177e4
LT		 57 props->fw_ver = mdev->fw_ver;
58
59 memset(in_mad, 0, sizeof *in_mad);
60 in_mad->base_version = 1;
61 in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
62 in_mad->class_version = 1;
63 in_mad->method = IB_MGMT_METHOD_GET;
64 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
65
66 err = mthca_MAD_IFC(mdev, 1, 1,
67 1, NULL, NULL, in_mad, out_mad,
68 &status);
69 if (err)
70 goto out;
71 if (status) {
72 err = -EINVAL;
73 goto out;
74 }
75
8cf2daf3
RD		 76 props->device_cap_flags = mdev->device_cap_flags;
77 props->vendor_id = be32_to_cpup((u32 *) (out_mad->data + 36)) &
1da177e4 78 0xffffff;
8cf2daf3
RD		 79 props->vendor_part_id = be16_to_cpup((u16 *) (out_mad->data + 30));
80 props->hw_ver = be16_to_cpup((u16 *) (out_mad->data + 32));
1da177e4
LT		 81 memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
82 memcpy(&props->node_guid, out_mad->data + 12, 8);
83
8cf2daf3
RD		 84 props->max_mr_size = ~0ull;
85 props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps;
86 props->max_qp_wr = 0xffff;
87 props->max_sge = mdev->limits.max_sg;
88 props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs;
89 props->max_cqe = 0xffff;
90 props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws;
91 props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds;
92 props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift;
93 props->max_qp_init_rd_atom = 1 << mdev->qp_table.rdb_shift;
94 props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay;
95
1da177e4
LT		 96 err = 0;
97 out:
98 kfree(in_mad);
99 kfree(out_mad);
100 return err;
101}
102
103static int mthca_query_port(struct ib_device *ibdev,
104 u8 port, struct ib_port_attr *props)
105{
106 struct ib_smp *in_mad = NULL;
107 struct ib_smp *out_mad = NULL;
108 int err = -ENOMEM;
109 u8 status;
110
111 in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
112 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
113 if (!in_mad || !out_mad)
114 goto out;
115
116 memset(in_mad, 0, sizeof *in_mad);
117 in_mad->base_version = 1;
118 in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
119 in_mad->class_version = 1;
120 in_mad->method = IB_MGMT_METHOD_GET;
121 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
122 in_mad->attr_mod = cpu_to_be32(port);
123
124 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
125 port, NULL, NULL, in_mad, out_mad,
126 &status);
127 if (err)
128 goto out;
129 if (status) {
130 err = -EINVAL;
131 goto out;
132 }
133
134 props->lid = be16_to_cpup((u16 *) (out_mad->data + 16));
135 props->lmc = out_mad->data[34] & 0x7;
136 props->sm_lid = be16_to_cpup((u16 *) (out_mad->data + 18));
137 props->sm_sl = out_mad->data[36] & 0xf;
138 props->state = out_mad->data[32] & 0xf;
139 props->phys_state = out_mad->data[33] >> 4;
140 props->port_cap_flags = be32_to_cpup((u32 *) (out_mad->data + 20));
141 props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len;
142 props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len;
143 props->qkey_viol_cntr = be16_to_cpup((u16 *) (out_mad->data + 48));
144 props->active_width = out_mad->data[31] & 0xf;
145 props->active_speed = out_mad->data[35] >> 4;
146
147 out:
148 kfree(in_mad);
149 kfree(out_mad);
150 return err;
151}
152
153static int mthca_modify_port(struct ib_device *ibdev,
154 u8 port, int port_modify_mask,
155 struct ib_port_modify *props)
156{
157 struct mthca_set_ib_param set_ib;
158 struct ib_port_attr attr;
159 int err;
160 u8 status;
161
162 if (down_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
163 return -ERESTARTSYS;
164
165 err = mthca_query_port(ibdev, port, &attr);
166 if (err)
167 goto out;
168
169 set_ib.set_si_guid = 0;
170 set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR);
171
172 set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
173 ~props->clr_port_cap_mask;
174
175 err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port, &status);
176 if (err)
177 goto out;
178 if (status) {
179 err = -EINVAL;
180 goto out;
181 }
182
183out:
184 up(&to_mdev(ibdev)->cap_mask_mutex);
185 return err;
186}
187
188static int mthca_query_pkey(struct ib_device *ibdev,
189 u8 port, u16 index, u16 *pkey)
190{
191 struct ib_smp *in_mad = NULL;
192 struct ib_smp *out_mad = NULL;
193 int err = -ENOMEM;
194 u8 status;
195
196 in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
197 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
198 if (!in_mad || !out_mad)
199 goto out;
200
201 memset(in_mad, 0, sizeof *in_mad);
202 in_mad->base_version = 1;
203 in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
204 in_mad->class_version = 1;
205 in_mad->method = IB_MGMT_METHOD_GET;
206 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
207 in_mad->attr_mod = cpu_to_be32(index / 32);
208
209 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
210 port, NULL, NULL, in_mad, out_mad,
211 &status);
212 if (err)
213 goto out;
214 if (status) {
215 err = -EINVAL;
216 goto out;
217 }
218
219 *pkey = be16_to_cpu(((u16 *) out_mad->data)[index % 32]);
220
221 out:
222 kfree(in_mad);
223 kfree(out_mad);
224 return err;
225}
226
227static int mthca_query_gid(struct ib_device *ibdev, u8 port,
228 int index, union ib_gid *gid)
229{
230 struct ib_smp *in_mad = NULL;
231 struct ib_smp *out_mad = NULL;
232 int err = -ENOMEM;
233 u8 status;
234
235 in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
236 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
237 if (!in_mad || !out_mad)
238 goto out;
239
240 memset(in_mad, 0, sizeof *in_mad);
241 in_mad->base_version = 1;
242 in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
243 in_mad->class_version = 1;
244 in_mad->method = IB_MGMT_METHOD_GET;
245 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
246 in_mad->attr_mod = cpu_to_be32(port);
247
248 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
249 port, NULL, NULL, in_mad, out_mad,
250 &status);
251 if (err)
252 goto out;
253 if (status) {
254 err = -EINVAL;
255 goto out;
256 }
257
258 memcpy(gid->raw, out_mad->data + 8, 8);
259
260 memset(in_mad, 0, sizeof *in_mad);
261 in_mad->base_version = 1;
262 in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
263 in_mad->class_version = 1;
264 in_mad->method = IB_MGMT_METHOD_GET;
265 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
266 in_mad->attr_mod = cpu_to_be32(index / 8);
267
268 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
269 port, NULL, NULL, in_mad, out_mad,
270 &status);
271 if (err)
272 goto out;
273 if (status) {
274 err = -EINVAL;
275 goto out;
276 }
277
278 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 16, 8);
279
280 out:
281 kfree(in_mad);
282 kfree(out_mad);
283 return err;
284}
285
286static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev)
287{
288 struct mthca_pd *pd;
289 int err;
290
291 pd = kmalloc(sizeof *pd, GFP_KERNEL);
292 if (!pd)
293 return ERR_PTR(-ENOMEM);
294
295 err = mthca_pd_alloc(to_mdev(ibdev), pd);
296 if (err) {
297 kfree(pd);
298 return ERR_PTR(err);
299 }
300
301 return &pd->ibpd;
302}
303
304static int mthca_dealloc_pd(struct ib_pd *pd)
305{
306 mthca_pd_free(to_mdev(pd->device), to_mpd(pd));
307 kfree(pd);
308
309 return 0;
310}
311
312static struct ib_ah *mthca_ah_create(struct ib_pd *pd,
313 struct ib_ah_attr *ah_attr)
314{
315 int err;
316 struct mthca_ah *ah;
317
318 ah = kmalloc(sizeof *ah, GFP_KERNEL);
319 if (!ah)
320 return ERR_PTR(-ENOMEM);
321
322 err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah);
323 if (err) {
324 kfree(ah);
325 return ERR_PTR(err);
326 }
327
328 return &ah->ibah;
329}
330
331static int mthca_ah_destroy(struct ib_ah *ah)
332{
333 mthca_destroy_ah(to_mdev(ah->device), to_mah(ah));
334 kfree(ah);
335
336 return 0;
337}
338
339static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
340 struct ib_qp_init_attr *init_attr)
341{
342 struct mthca_qp *qp;
343 int err;
344
345 switch (init_attr->qp_type) {
346 case IB_QPT_RC:
347 case IB_QPT_UC:
348 case IB_QPT_UD:
349 {
350 qp = kmalloc(sizeof *qp, GFP_KERNEL);
351 if (!qp)
352 return ERR_PTR(-ENOMEM);
353
354 qp->sq.max = init_attr->cap.max_send_wr;
355 qp->rq.max = init_attr->cap.max_recv_wr;
356 qp->sq.max_gs = init_attr->cap.max_send_sge;
357 qp->rq.max_gs = init_attr->cap.max_recv_sge;
358
359 err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd),
360 to_mcq(init_attr->send_cq),
361 to_mcq(init_attr->recv_cq),
362 init_attr->qp_type, init_attr->sq_sig_type,
363 qp);
364 qp->ibqp.qp_num = qp->qpn;
365 break;
366 }
367 case IB_QPT_SMI:
368 case IB_QPT_GSI:
369 {
370 qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL);
371 if (!qp)
372 return ERR_PTR(-ENOMEM);
373
374 qp->sq.max = init_attr->cap.max_send_wr;
375 qp->rq.max = init_attr->cap.max_recv_wr;
376 qp->sq.max_gs = init_attr->cap.max_send_sge;
377 qp->rq.max_gs = init_attr->cap.max_recv_sge;
378
379 qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1;
380
381 err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd),
382 to_mcq(init_attr->send_cq),
383 to_mcq(init_attr->recv_cq),
384 init_attr->sq_sig_type,
385 qp->ibqp.qp_num, init_attr->port_num,
386 to_msqp(qp));
387 break;
388 }
389 default:
390 /* Don't support raw QPs */
391 return ERR_PTR(-ENOSYS);
392 }
393
394 if (err) {
395 kfree(qp);
396 return ERR_PTR(err);
397 }
398
399 init_attr->cap.max_inline_data = 0;
400
401 return &qp->ibqp;
402}
403
404static int mthca_destroy_qp(struct ib_qp *qp)
405{
406 mthca_free_qp(to_mdev(qp->device), to_mqp(qp));
407 kfree(qp);
408 return 0;
409}
410
411static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries)
412{
413 struct mthca_cq *cq;
414 int nent;
415 int err;
416
417 cq = kmalloc(sizeof *cq, GFP_KERNEL);
418 if (!cq)
419 return ERR_PTR(-ENOMEM);
420
421 for (nent = 1; nent <= entries; nent <<= 1)
422 ; /* nothing */
423
424 err = mthca_init_cq(to_mdev(ibdev), nent, cq);
425 if (err) {
426 kfree(cq);
427 cq = ERR_PTR(err);
428 }
429
430 return &cq->ibcq;
431}
432
433static int mthca_destroy_cq(struct ib_cq *cq)
434{
435 mthca_free_cq(to_mdev(cq->device), to_mcq(cq));
436 kfree(cq);
437
438 return 0;
439}
440
441static inline u32 convert_access(int acc)
442{
443 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) |
444 (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) |
445 (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) |
446 (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) |
447 MTHCA_MPT_FLAG_LOCAL_READ;
448}
449
450static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc)
451{
452 struct mthca_mr *mr;
453 int err;
454
455 mr = kmalloc(sizeof *mr, GFP_KERNEL);
456 if (!mr)
457 return ERR_PTR(-ENOMEM);
458
459 err = mthca_mr_alloc_notrans(to_mdev(pd->device),
460 to_mpd(pd)->pd_num,
461 convert_access(acc), mr);
462
463 if (err) {
464 kfree(mr);
465 return ERR_PTR(err);
466 }
467
468 return &mr->ibmr;
469}
470
471static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd,
472 struct ib_phys_buf *buffer_list,
473 int num_phys_buf,
474 int acc,
475 u64 *iova_start)
476{
477 struct mthca_mr *mr;
478 u64 *page_list;
479 u64 total_size;
480 u64 mask;
481 int shift;
482 int npages;
483 int err;
484 int i, j, n;
485
486 /* First check that we have enough alignment */
487 if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK))
488 return ERR_PTR(-EINVAL);
489
490 if (num_phys_buf > 1 &&
491 ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK))
492 return ERR_PTR(-EINVAL);
493
494 mask = 0;
495 total_size = 0;
496 for (i = 0; i < num_phys_buf; ++i) {
72c30290 497 if (i != 0 && buffer_list[i].addr & ~PAGE_MASK)
1da177e4
LT		 498 return ERR_PTR(-EINVAL);
499 if (i != 0 && i != num_phys_buf - 1 &&
500 (buffer_list[i].size & ~PAGE_MASK))
501 return ERR_PTR(-EINVAL);
502
503 total_size += buffer_list[i].size;
504 if (i > 0)
505 mask |= buffer_list[i].addr;
506 }
507
508 /* Find largest page shift we can use to cover buffers */
509 for (shift = PAGE_SHIFT; shift < 31; ++shift)
510 if (num_phys_buf > 1) {
511 if ((1ULL << shift) & mask)
512 break;
513 } else {
514 if (1ULL << shift >=
515 buffer_list[0].size +
516 (buffer_list[0].addr & ((1ULL << shift) - 1)))
517 break;
518 }
519
520 buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1);
521 buffer_list[0].addr &= ~0ull << shift;
522
523 mr = kmalloc(sizeof *mr, GFP_KERNEL);
524 if (!mr)
525 return ERR_PTR(-ENOMEM);
526
527 npages = 0;
528 for (i = 0; i < num_phys_buf; ++i)
529 npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift;
530
531 if (!npages)
532 return &mr->ibmr;
533
534 page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL);
535 if (!page_list) {
536 kfree(mr);
537 return ERR_PTR(-ENOMEM);
538 }
539
540 n = 0;
541 for (i = 0; i < num_phys_buf; ++i)
542 for (j = 0;
543 j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift;
544 ++j)
545 page_list[n++] = buffer_list[i].addr + ((u64) j << shift);
546
547 mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) "
548 "in PD %x; shift %d, npages %d.\n",
549 (unsigned long long) buffer_list[0].addr,
550 (unsigned long long) *iova_start,
551 to_mpd(pd)->pd_num,
552 shift, npages);
553
554 err = mthca_mr_alloc_phys(to_mdev(pd->device),
555 to_mpd(pd)->pd_num,
556 page_list, shift, npages,
557 *iova_start, total_size,
558 convert_access(acc), mr);
559
560 if (err) {
561 kfree(mr);
562 return ERR_PTR(err);
563 }
564
565 kfree(page_list);
566 return &mr->ibmr;
567}
568
569static int mthca_dereg_mr(struct ib_mr *mr)
570{
571 mthca_free_mr(to_mdev(mr->device), to_mmr(mr));
572 kfree(mr);
573 return 0;
574}
575
576static ssize_t show_rev(struct class_device *cdev, char *buf)
577{
578 struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev);
579 return sprintf(buf, "%x\n", dev->rev_id);
580}
581
582static ssize_t show_fw_ver(struct class_device *cdev, char *buf)
583{
584 struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev);
585 return sprintf(buf, "%x.%x.%x\n", (int) (dev->fw_ver >> 32),
586 (int) (dev->fw_ver >> 16) & 0xffff,
587 (int) dev->fw_ver & 0xffff);
588}
589
590static ssize_t show_hca(struct class_device *cdev, char *buf)
591{
592 struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev);
593 switch (dev->hca_type) {
594 case TAVOR: return sprintf(buf, "MT23108\n");
595 case ARBEL_COMPAT: return sprintf(buf, "MT25208 (MT23108 compat mode)\n");
596 case ARBEL_NATIVE: return sprintf(buf, "MT25208\n");
597 default: return sprintf(buf, "unknown\n");
598 }
599}
600
601static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
602static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
603static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
604
605static struct class_device_attribute *mthca_class_attributes[] = {
606 &class_device_attr_hw_rev,
607 &class_device_attr_fw_ver,
608 &class_device_attr_hca_type
609};
610
611int mthca_register_device(struct mthca_dev *dev)
612{
613 int ret;
614 int i;
615
616 strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX);
617 dev->ib_dev.node_type = IB_NODE_CA;
618 dev->ib_dev.phys_port_cnt = dev->limits.num_ports;
619 dev->ib_dev.dma_device = &dev->pdev->dev;
620 dev->ib_dev.class_dev.dev = &dev->pdev->dev;
621 dev->ib_dev.query_device = mthca_query_device;
622 dev->ib_dev.query_port = mthca_query_port;
623 dev->ib_dev.modify_port = mthca_modify_port;
624 dev->ib_dev.query_pkey = mthca_query_pkey;
625 dev->ib_dev.query_gid = mthca_query_gid;
626 dev->ib_dev.alloc_pd = mthca_alloc_pd;
627 dev->ib_dev.dealloc_pd = mthca_dealloc_pd;
628 dev->ib_dev.create_ah = mthca_ah_create;
629 dev->ib_dev.destroy_ah = mthca_ah_destroy;
630 dev->ib_dev.create_qp = mthca_create_qp;
631 dev->ib_dev.modify_qp = mthca_modify_qp;
632 dev->ib_dev.destroy_qp = mthca_destroy_qp;
633 dev->ib_dev.create_cq = mthca_create_cq;
634 dev->ib_dev.destroy_cq = mthca_destroy_cq;
635 dev->ib_dev.poll_cq = mthca_poll_cq;
636 dev->ib_dev.get_dma_mr = mthca_get_dma_mr;
637 dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr;
638 dev->ib_dev.dereg_mr = mthca_dereg_mr;
639 dev->ib_dev.attach_mcast = mthca_multicast_attach;
640 dev->ib_dev.detach_mcast = mthca_multicast_detach;
641 dev->ib_dev.process_mad = mthca_process_mad;
642
643 if (dev->hca_type == ARBEL_NATIVE) {
644 dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq;
645 dev->ib_dev.post_send = mthca_arbel_post_send;
646 dev->ib_dev.post_recv = mthca_arbel_post_receive;
647 } else {
648 dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq;
649 dev->ib_dev.post_send = mthca_tavor_post_send;
650 dev->ib_dev.post_recv = mthca_tavor_post_receive;
651 }
652
653 init_MUTEX(&dev->cap_mask_mutex);
654
655 ret = ib_register_device(&dev->ib_dev);
656 if (ret)
657 return ret;
658
659 for (i = 0; i < ARRAY_SIZE(mthca_class_attributes); ++i) {
660 ret = class_device_create_file(&dev->ib_dev.class_dev,
661 mthca_class_attributes[i]);
662 if (ret) {
663 ib_unregister_device(&dev->ib_dev);
664 return ret;
665 }
666 }
667
668 return 0;
669}
670
671void mthca_unregister_device(struct mthca_dev *dev)
672{
673 ib_unregister_device(&dev->ib_dev);
674}
Linux 6.x block layer and io_uring tree(s)