?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
ia64/kvm: compilation fix. export account_system_vtime.
[pv_ops_mirror.git] / drivers / infiniband / hw / mthca / mthca_provider.c
blobbe34f99ca62579b916970d5387110b370b99602d
1 /*
2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
5 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
6 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
7 *
8 * This software is available to you under a choice of one of two
9 * licenses. You may choose to be licensed under the terms of the GNU
10 * General Public License (GPL) Version 2, available from the file
11 * COPYING in the main directory of this source tree, or the
12 * OpenIB.org BSD license below:
13 *
14 * Redistribution and use in source and binary forms, with or
15 * without modification, are permitted provided that the following
16 * conditions are met:
17 *
18 * - Redistributions of source code must retain the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer.
21 *
22 * - Redistributions in binary form must reproduce the above
23 * copyright notice, this list of conditions and the following
24 * disclaimer in the documentation and/or other materials
25 * provided with the distribution.
26 *
27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 * SOFTWARE.
35 *
36 * $Id: mthca_provider.c 4859 2006-01-09 21:55:10Z roland $
37 */
38
39 #include <rdma/ib_smi.h>
40 #include <rdma/ib_umem.h>
41 #include <rdma/ib_user_verbs.h>
42
43 #include <linux/sched.h>
44 #include <linux/mm.h>
45
46 #include "mthca_dev.h"
47 #include "mthca_cmd.h"
48 #include "mthca_user.h"
49 #include "mthca_memfree.h"
50
51 static void init_query_mad(struct ib_smp *mad)
52 {
53 mad->base_version = 1;
54 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
55 mad->class_version = 1;
56 mad->method = IB_MGMT_METHOD_GET;
57 }
58
59 static int mthca_query_device(struct ib_device *ibdev,
60 struct ib_device_attr *props)
61 {
62 struct ib_smp *in_mad = NULL;
63 struct ib_smp *out_mad = NULL;
64 int err = -ENOMEM;
65 struct mthca_dev *mdev = to_mdev(ibdev);
66
67 u8 status;
68
69 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
70 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
71 if (!in_mad || !out_mad)
72 goto out;
73
74 memset(props, 0, sizeof *props);
75
76 props->fw_ver = mdev->fw_ver;
77
78 init_query_mad(in_mad);
79 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
80
81 err = mthca_MAD_IFC(mdev, 1, 1,
82 1, NULL, NULL, in_mad, out_mad,
83 &status);
84 if (err)
85 goto out;
86 if (status) {
87 err = -EINVAL;
88 goto out;
89 }
90
91 props->device_cap_flags = mdev->device_cap_flags;
92 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
93 0xffffff;
94 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30));
95 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32));
96 memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
97
98 props->max_mr_size = ~0ull;
99 props->page_size_cap = mdev->limits.page_size_cap;
100 props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps;
101 props->max_qp_wr = mdev->limits.max_wqes;
102 props->max_sge = mdev->limits.max_sg;
103 props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs;
104 props->max_cqe = mdev->limits.max_cqes;
105 props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws;
106 props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds;
107 props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift;
108 props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma;
109 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
110 props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs;
111 props->max_srq_wr = mdev->limits.max_srq_wqes;
112 props->max_srq_sge = mdev->limits.max_srq_sge;
113 props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay;
114 props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ?
115 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
116 props->max_pkeys = mdev->limits.pkey_table_len;
117 props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms;
118 props->max_mcast_qp_attach = MTHCA_QP_PER_MGM;
119 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
120 props->max_mcast_grp;
121 /*
122 * If Sinai memory key optimization is being used, then only
123 * the 8-bit key portion will change. For other HCAs, the
124 * unused index bits will also be used for FMR remapping.
125 */
126 if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
127 props->max_map_per_fmr = 255;
128 else
129 props->max_map_per_fmr =
130 (1 << (32 - ilog2(mdev->limits.num_mpts))) - 1;
131
132 err = 0;
133 out:
134 kfree(in_mad);
135 kfree(out_mad);
136 return err;
137 }
138
139 static int mthca_query_port(struct ib_device *ibdev,
140 u8 port, struct ib_port_attr *props)
141 {
142 struct ib_smp *in_mad = NULL;
143 struct ib_smp *out_mad = NULL;
144 int err = -ENOMEM;
145 u8 status;
146
147 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
148 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
149 if (!in_mad || !out_mad)
150 goto out;
151
152 memset(props, 0, sizeof *props);
153
154 init_query_mad(in_mad);
155 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
156 in_mad->attr_mod = cpu_to_be32(port);
157
158 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
159 port, NULL, NULL, in_mad, out_mad,
160 &status);
161 if (err)
162 goto out;
163 if (status) {
164 err = -EINVAL;
165 goto out;
166 }
167
168 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
169 props->lmc = out_mad->data[34] & 0x7;
170 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
171 props->sm_sl = out_mad->data[36] & 0xf;
172 props->state = out_mad->data[32] & 0xf;
173 props->phys_state = out_mad->data[33] >> 4;
174 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
175 props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len;
176 props->max_msg_sz = 0x80000000;
177 props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len;
178 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
179 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
180 props->active_width = out_mad->data[31] & 0xf;
181 props->active_speed = out_mad->data[35] >> 4;
182 props->max_mtu = out_mad->data[41] & 0xf;
183 props->active_mtu = out_mad->data[36] >> 4;
184 props->subnet_timeout = out_mad->data[51] & 0x1f;
185 props->max_vl_num = out_mad->data[37] >> 4;
186 props->init_type_reply = out_mad->data[41] >> 4;
187
188 out:
189 kfree(in_mad);
190 kfree(out_mad);
191 return err;
192 }
193
194 static int mthca_modify_device(struct ib_device *ibdev,
195 int mask,
196 struct ib_device_modify *props)
197 {
198 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
199 return -EOPNOTSUPP;
200
201 if (mask & IB_DEVICE_MODIFY_NODE_DESC) {
202 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
203 return -ERESTARTSYS;
204 memcpy(ibdev->node_desc, props->node_desc, 64);
205 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
206 }
207
208 return 0;
209 }
210
211 static int mthca_modify_port(struct ib_device *ibdev,
212 u8 port, int port_modify_mask,
213 struct ib_port_modify *props)
214 {
215 struct mthca_set_ib_param set_ib;
216 struct ib_port_attr attr;
217 int err;
218 u8 status;
219
220 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
221 return -ERESTARTSYS;
222
223 err = mthca_query_port(ibdev, port, &attr);
224 if (err)
225 goto out;
226
227 set_ib.set_si_guid = 0;
228 set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR);
229
230 set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
231 ~props->clr_port_cap_mask;
232
233 err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port, &status);
234 if (err)
235 goto out;
236 if (status) {
237 err = -EINVAL;
238 goto out;
239 }
240
241 out:
242 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
243 return err;
244 }
245
246 static int mthca_query_pkey(struct ib_device *ibdev,
247 u8 port, u16 index, u16 *pkey)
248 {
249 struct ib_smp *in_mad = NULL;
250 struct ib_smp *out_mad = NULL;
251 int err = -ENOMEM;
252 u8 status;
253
254 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
255 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
256 if (!in_mad || !out_mad)
257 goto out;
258
259 init_query_mad(in_mad);
260 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
261 in_mad->attr_mod = cpu_to_be32(index / 32);
262
263 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
264 port, NULL, NULL, in_mad, out_mad,
265 &status);
266 if (err)
267 goto out;
268 if (status) {
269 err = -EINVAL;
270 goto out;
271 }
272
273 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
274
275 out:
276 kfree(in_mad);
277 kfree(out_mad);
278 return err;
279 }
280
281 static int mthca_query_gid(struct ib_device *ibdev, u8 port,
282 int index, union ib_gid *gid)
283 {
284 struct ib_smp *in_mad = NULL;
285 struct ib_smp *out_mad = NULL;
286 int err = -ENOMEM;
287 u8 status;
288
289 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
290 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
291 if (!in_mad || !out_mad)
292 goto out;
293
294 init_query_mad(in_mad);
295 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
296 in_mad->attr_mod = cpu_to_be32(port);
297
298 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
299 port, NULL, NULL, in_mad, out_mad,
300 &status);
301 if (err)
302 goto out;
303 if (status) {
304 err = -EINVAL;
305 goto out;
306 }
307
308 memcpy(gid->raw, out_mad->data + 8, 8);
309
310 init_query_mad(in_mad);
311 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
312 in_mad->attr_mod = cpu_to_be32(index / 8);
313
314 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
315 port, NULL, NULL, in_mad, out_mad,
316 &status);
317 if (err)
318 goto out;
319 if (status) {
320 err = -EINVAL;
321 goto out;
322 }
323
324 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
325
326 out:
327 kfree(in_mad);
328 kfree(out_mad);
329 return err;
330 }
331
332 static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev,
333 struct ib_udata *udata)
334 {
335 struct mthca_alloc_ucontext_resp uresp;
336 struct mthca_ucontext *context;
337 int err;
338
339 memset(&uresp, 0, sizeof uresp);
340
341 uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps;
342 if (mthca_is_memfree(to_mdev(ibdev)))
343 uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size;
344 else
345 uresp.uarc_size = 0;
346
347 context = kmalloc(sizeof *context, GFP_KERNEL);
348 if (!context)
349 return ERR_PTR(-ENOMEM);
350
351 err = mthca_uar_alloc(to_mdev(ibdev), &context->uar);
352 if (err) {
353 kfree(context);
354 return ERR_PTR(err);
355 }
356
357 context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev));
358 if (IS_ERR(context->db_tab)) {
359 err = PTR_ERR(context->db_tab);
360 mthca_uar_free(to_mdev(ibdev), &context->uar);
361 kfree(context);
362 return ERR_PTR(err);
363 }
364
365 if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) {
366 mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab);
367 mthca_uar_free(to_mdev(ibdev), &context->uar);
368 kfree(context);
369 return ERR_PTR(-EFAULT);
370 }
371
372 context->reg_mr_warned = 0;
373
374 return &context->ibucontext;
375 }
376
377 static int mthca_dealloc_ucontext(struct ib_ucontext *context)
378 {
379 mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar,
380 to_mucontext(context)->db_tab);
381 mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar);
382 kfree(to_mucontext(context));
383
384 return 0;
385 }
386
387 static int mthca_mmap_uar(struct ib_ucontext *context,
388 struct vm_area_struct *vma)
389 {
390 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
391 return -EINVAL;
392
393 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
394
395 if (io_remap_pfn_range(vma, vma->vm_start,
396 to_mucontext(context)->uar.pfn,
397 PAGE_SIZE, vma->vm_page_prot))
398 return -EAGAIN;
399
400 return 0;
401 }
402
403 static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev,
404 struct ib_ucontext *context,
405 struct ib_udata *udata)
406 {
407 struct mthca_pd *pd;
408 int err;
409
410 pd = kmalloc(sizeof *pd, GFP_KERNEL);
411 if (!pd)
412 return ERR_PTR(-ENOMEM);
413
414 err = mthca_pd_alloc(to_mdev(ibdev), !context, pd);
415 if (err) {
416 kfree(pd);
417 return ERR_PTR(err);
418 }
419
420 if (context) {
421 if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) {
422 mthca_pd_free(to_mdev(ibdev), pd);
423 kfree(pd);
424 return ERR_PTR(-EFAULT);
425 }
426 }
427
428 return &pd->ibpd;
429 }
430
431 static int mthca_dealloc_pd(struct ib_pd *pd)
432 {
433 mthca_pd_free(to_mdev(pd->device), to_mpd(pd));
434 kfree(pd);
435
436 return 0;
437 }
438
439 static struct ib_ah *mthca_ah_create(struct ib_pd *pd,
440 struct ib_ah_attr *ah_attr)
441 {
442 int err;
443 struct mthca_ah *ah;
444
445 ah = kmalloc(sizeof *ah, GFP_ATOMIC);
446 if (!ah)
447 return ERR_PTR(-ENOMEM);
448
449 err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah);
450 if (err) {
451 kfree(ah);
452 return ERR_PTR(err);
453 }
454
455 return &ah->ibah;
456 }
457
458 static int mthca_ah_destroy(struct ib_ah *ah)
459 {
460 mthca_destroy_ah(to_mdev(ah->device), to_mah(ah));
461 kfree(ah);
462
463 return 0;
464 }
465
466 static struct ib_srq *mthca_create_srq(struct ib_pd *pd,
467 struct ib_srq_init_attr *init_attr,
468 struct ib_udata *udata)
469 {
470 struct mthca_create_srq ucmd;
471 struct mthca_ucontext *context = NULL;
472 struct mthca_srq *srq;
473 int err;
474
475 srq = kmalloc(sizeof *srq, GFP_KERNEL);
476 if (!srq)
477 return ERR_PTR(-ENOMEM);
478
479 if (pd->uobject) {
480 context = to_mucontext(pd->uobject->context);
481
482 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
483 err = -EFAULT;
484 goto err_free;
485 }
486
487 err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
488 context->db_tab, ucmd.db_index,
489 ucmd.db_page);
490
491 if (err)
492 goto err_free;
493
494 srq->mr.ibmr.lkey = ucmd.lkey;
495 srq->db_index = ucmd.db_index;
496 }
497
498 err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd),
499 &init_attr->attr, srq);
500
501 if (err && pd->uobject)
502 mthca_unmap_user_db(to_mdev(pd->device), &context->uar,
503 context->db_tab, ucmd.db_index);
504
505 if (err)
506 goto err_free;
507
508 if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) {
509 mthca_free_srq(to_mdev(pd->device), srq);
510 err = -EFAULT;
511 goto err_free;
512 }
513
514 return &srq->ibsrq;
515
516 err_free:
517 kfree(srq);
518
519 return ERR_PTR(err);
520 }
521
522 static int mthca_destroy_srq(struct ib_srq *srq)
523 {
524 struct mthca_ucontext *context;
525
526 if (srq->uobject) {
527 context = to_mucontext(srq->uobject->context);
528
529 mthca_unmap_user_db(to_mdev(srq->device), &context->uar,
530 context->db_tab, to_msrq(srq)->db_index);
531 }
532
533 mthca_free_srq(to_mdev(srq->device), to_msrq(srq));
534 kfree(srq);
535
536 return 0;
537 }
538
539 static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
540 struct ib_qp_init_attr *init_attr,
541 struct ib_udata *udata)
542 {
543 struct mthca_create_qp ucmd;
544 struct mthca_qp *qp;
545 int err;
546
547 if (init_attr->create_flags)
548 return ERR_PTR(-EINVAL);
549
550 switch (init_attr->qp_type) {
551 case IB_QPT_RC:
552 case IB_QPT_UC:
553 case IB_QPT_UD:
554 {
555 struct mthca_ucontext *context;
556
557 qp = kmalloc(sizeof *qp, GFP_KERNEL);
558 if (!qp)
559 return ERR_PTR(-ENOMEM);
560
561 if (pd->uobject) {
562 context = to_mucontext(pd->uobject->context);
563
564 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
565 kfree(qp);
566 return ERR_PTR(-EFAULT);
567 }
568
569 err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
570 context->db_tab,
571 ucmd.sq_db_index, ucmd.sq_db_page);
572 if (err) {
573 kfree(qp);
574 return ERR_PTR(err);
575 }
576
577 err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
578 context->db_tab,
579 ucmd.rq_db_index, ucmd.rq_db_page);
580 if (err) {
581 mthca_unmap_user_db(to_mdev(pd->device),
582 &context->uar,
583 context->db_tab,
584 ucmd.sq_db_index);
585 kfree(qp);
586 return ERR_PTR(err);
587 }
588
589 qp->mr.ibmr.lkey = ucmd.lkey;
590 qp->sq.db_index = ucmd.sq_db_index;
591 qp->rq.db_index = ucmd.rq_db_index;
592 }
593
594 err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd),
595 to_mcq(init_attr->send_cq),
596 to_mcq(init_attr->recv_cq),
597 init_attr->qp_type, init_attr->sq_sig_type,
598 &init_attr->cap, qp);
599
600 if (err && pd->uobject) {
601 context = to_mucontext(pd->uobject->context);
602
603 mthca_unmap_user_db(to_mdev(pd->device),
604 &context->uar,
605 context->db_tab,
606 ucmd.sq_db_index);
607 mthca_unmap_user_db(to_mdev(pd->device),
608 &context->uar,
609 context->db_tab,
610 ucmd.rq_db_index);
611 }
612
613 qp->ibqp.qp_num = qp->qpn;
614 break;
615 }
616 case IB_QPT_SMI:
617 case IB_QPT_GSI:
618 {
619 /* Don't allow userspace to create special QPs */
620 if (pd->uobject)
621 return ERR_PTR(-EINVAL);
622
623 qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL);
624 if (!qp)
625 return ERR_PTR(-ENOMEM);
626
627 qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1;
628
629 err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd),
630 to_mcq(init_attr->send_cq),
631 to_mcq(init_attr->recv_cq),
632 init_attr->sq_sig_type, &init_attr->cap,
633 qp->ibqp.qp_num, init_attr->port_num,
634 to_msqp(qp));
635 break;
636 }
637 default:
638 /* Don't support raw QPs */
639 return ERR_PTR(-ENOSYS);
640 }
641
642 if (err) {
643 kfree(qp);
644 return ERR_PTR(err);
645 }
646
647 init_attr->cap.max_send_wr = qp->sq.max;
648 init_attr->cap.max_recv_wr = qp->rq.max;
649 init_attr->cap.max_send_sge = qp->sq.max_gs;
650 init_attr->cap.max_recv_sge = qp->rq.max_gs;
651 init_attr->cap.max_inline_data = qp->max_inline_data;
652
653 return &qp->ibqp;
654 }
655
656 static int mthca_destroy_qp(struct ib_qp *qp)
657 {
658 if (qp->uobject) {
659 mthca_unmap_user_db(to_mdev(qp->device),
660 &to_mucontext(qp->uobject->context)->uar,
661 to_mucontext(qp->uobject->context)->db_tab,
662 to_mqp(qp)->sq.db_index);
663 mthca_unmap_user_db(to_mdev(qp->device),
664 &to_mucontext(qp->uobject->context)->uar,
665 to_mucontext(qp->uobject->context)->db_tab,
666 to_mqp(qp)->rq.db_index);
667 }
668 mthca_free_qp(to_mdev(qp->device), to_mqp(qp));
669 kfree(qp);
670 return 0;
671 }
672
673 static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries,
674 int comp_vector,
675 struct ib_ucontext *context,
676 struct ib_udata *udata)
677 {
678 struct mthca_create_cq ucmd;
679 struct mthca_cq *cq;
680 int nent;
681 int err;
682
683 if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes)
684 return ERR_PTR(-EINVAL);
685
686 if (context) {
687 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
688 return ERR_PTR(-EFAULT);
689
690 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
691 to_mucontext(context)->db_tab,
692 ucmd.set_db_index, ucmd.set_db_page);
693 if (err)
694 return ERR_PTR(err);
695
696 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
697 to_mucontext(context)->db_tab,
698 ucmd.arm_db_index, ucmd.arm_db_page);
699 if (err)
700 goto err_unmap_set;
701 }
702
703 cq = kmalloc(sizeof *cq, GFP_KERNEL);
704 if (!cq) {
705 err = -ENOMEM;
706 goto err_unmap_arm;
707 }
708
709 if (context) {
710 cq->buf.mr.ibmr.lkey = ucmd.lkey;
711 cq->set_ci_db_index = ucmd.set_db_index;
712 cq->arm_db_index = ucmd.arm_db_index;
713 }
714
715 for (nent = 1; nent <= entries; nent <<= 1)
716 ; /* nothing */
717
718 err = mthca_init_cq(to_mdev(ibdev), nent,
719 context ? to_mucontext(context) : NULL,
720 context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num,
721 cq);
722 if (err)
723 goto err_free;
724
725 if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) {
726 mthca_free_cq(to_mdev(ibdev), cq);
727 goto err_free;
728 }
729
730 cq->resize_buf = NULL;
731
732 return &cq->ibcq;
733
734 err_free:
735 kfree(cq);
736
737 err_unmap_arm:
738 if (context)
739 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
740 to_mucontext(context)->db_tab, ucmd.arm_db_index);
741
742 err_unmap_set:
743 if (context)
744 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
745 to_mucontext(context)->db_tab, ucmd.set_db_index);
746
747 return ERR_PTR(err);
748 }
749
750 static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq,
751 int entries)
752 {
753 int ret;
754
755 spin_lock_irq(&cq->lock);
756 if (cq->resize_buf) {
757 ret = -EBUSY;
758 goto unlock;
759 }
760
761 cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC);
762 if (!cq->resize_buf) {
763 ret = -ENOMEM;
764 goto unlock;
765 }
766
767 cq->resize_buf->state = CQ_RESIZE_ALLOC;
768
769 ret = 0;
770
771 unlock:
772 spin_unlock_irq(&cq->lock);
773
774 if (ret)
775 return ret;
776
777 ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries);
778 if (ret) {
779 spin_lock_irq(&cq->lock);
780 kfree(cq->resize_buf);
781 cq->resize_buf = NULL;
782 spin_unlock_irq(&cq->lock);
783 return ret;
784 }
785
786 cq->resize_buf->cqe = entries - 1;
787
788 spin_lock_irq(&cq->lock);
789 cq->resize_buf->state = CQ_RESIZE_READY;
790 spin_unlock_irq(&cq->lock);
791
792 return 0;
793 }
794
795 static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
796 {
797 struct mthca_dev *dev = to_mdev(ibcq->device);
798 struct mthca_cq *cq = to_mcq(ibcq);
799 struct mthca_resize_cq ucmd;
800 u32 lkey;
801 u8 status;
802 int ret;
803
804 if (entries < 1 || entries > dev->limits.max_cqes)
805 return -EINVAL;
806
807 mutex_lock(&cq->mutex);
808
809 entries = roundup_pow_of_two(entries + 1);
810 if (entries == ibcq->cqe + 1) {
811 ret = 0;
812 goto out;
813 }
814
815 if (cq->is_kernel) {
816 ret = mthca_alloc_resize_buf(dev, cq, entries);
817 if (ret)
818 goto out;
819 lkey = cq->resize_buf->buf.mr.ibmr.lkey;
820 } else {
821 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
822 ret = -EFAULT;
823 goto out;
824 }
825 lkey = ucmd.lkey;
826 }
827
828 ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries), &status);
829 if (status)
830 ret = -EINVAL;
831
832 if (ret) {
833 if (cq->resize_buf) {
834 mthca_free_cq_buf(dev, &cq->resize_buf->buf,
835 cq->resize_buf->cqe);
836 kfree(cq->resize_buf);
837 spin_lock_irq(&cq->lock);
838 cq->resize_buf = NULL;
839 spin_unlock_irq(&cq->lock);
840 }
841 goto out;
842 }
843
844 if (cq->is_kernel) {
845 struct mthca_cq_buf tbuf;
846 int tcqe;
847
848 spin_lock_irq(&cq->lock);
849 if (cq->resize_buf->state == CQ_RESIZE_READY) {
850 mthca_cq_resize_copy_cqes(cq);
851 tbuf = cq->buf;
852 tcqe = cq->ibcq.cqe;
853 cq->buf = cq->resize_buf->buf;
854 cq->ibcq.cqe = cq->resize_buf->cqe;
855 } else {
856 tbuf = cq->resize_buf->buf;
857 tcqe = cq->resize_buf->cqe;
858 }
859
860 kfree(cq->resize_buf);
861 cq->resize_buf = NULL;
862 spin_unlock_irq(&cq->lock);
863
864 mthca_free_cq_buf(dev, &tbuf, tcqe);
865 } else
866 ibcq->cqe = entries - 1;
867
868 out:
869 mutex_unlock(&cq->mutex);
870
871 return ret;
872 }
873
874 static int mthca_destroy_cq(struct ib_cq *cq)
875 {
876 if (cq->uobject) {
877 mthca_unmap_user_db(to_mdev(cq->device),
878 &to_mucontext(cq->uobject->context)->uar,
879 to_mucontext(cq->uobject->context)->db_tab,
880 to_mcq(cq)->arm_db_index);
881 mthca_unmap_user_db(to_mdev(cq->device),
882 &to_mucontext(cq->uobject->context)->uar,
883 to_mucontext(cq->uobject->context)->db_tab,
884 to_mcq(cq)->set_ci_db_index);
885 }
886 mthca_free_cq(to_mdev(cq->device), to_mcq(cq));
887 kfree(cq);
888
889 return 0;
890 }
891
892 static inline u32 convert_access(int acc)
893 {
894 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) |
895 (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) |
896 (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) |
897 (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) |
898 MTHCA_MPT_FLAG_LOCAL_READ;
899 }
900
901 static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc)
902 {
903 struct mthca_mr *mr;
904 int err;
905
906 mr = kmalloc(sizeof *mr, GFP_KERNEL);
907 if (!mr)
908 return ERR_PTR(-ENOMEM);
909
910 err = mthca_mr_alloc_notrans(to_mdev(pd->device),
911 to_mpd(pd)->pd_num,
912 convert_access(acc), mr);
913
914 if (err) {
915 kfree(mr);
916 return ERR_PTR(err);
917 }
918
919 mr->umem = NULL;
920
921 return &mr->ibmr;
922 }
923
924 static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd,
925 struct ib_phys_buf *buffer_list,
926 int num_phys_buf,
927 int acc,
928 u64 *iova_start)
929 {
930 struct mthca_mr *mr;
931 u64 *page_list;
932 u64 total_size;
933 unsigned long mask;
934 int shift;
935 int npages;
936 int err;
937 int i, j, n;
938
939 mask = buffer_list[0].addr ^ *iova_start;
940 total_size = 0;
941 for (i = 0; i < num_phys_buf; ++i) {
942 if (i != 0)
943 mask |= buffer_list[i].addr;
944 if (i != num_phys_buf - 1)
945 mask |= buffer_list[i].addr + buffer_list[i].size;
946
947 total_size += buffer_list[i].size;
948 }
949
950 if (mask & ~PAGE_MASK)
951 return ERR_PTR(-EINVAL);
952
953 shift = __ffs(mask | 1 << 31);
954
955 buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1);
956 buffer_list[0].addr &= ~0ull << shift;
957
958 mr = kmalloc(sizeof *mr, GFP_KERNEL);
959 if (!mr)
960 return ERR_PTR(-ENOMEM);
961
962 npages = 0;
963 for (i = 0; i < num_phys_buf; ++i)
964 npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift;
965
966 if (!npages)
967 return &mr->ibmr;
968
969 page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL);
970 if (!page_list) {
971 kfree(mr);
972 return ERR_PTR(-ENOMEM);
973 }
974
975 n = 0;
976 for (i = 0; i < num_phys_buf; ++i)
977 for (j = 0;
978 j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift;
979 ++j)
980 page_list[n++] = buffer_list[i].addr + ((u64) j << shift);
981
982 mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) "
983 "in PD %x; shift %d, npages %d.\n",
984 (unsigned long long) buffer_list[0].addr,
985 (unsigned long long) *iova_start,
986 to_mpd(pd)->pd_num,
987 shift, npages);
988
989 err = mthca_mr_alloc_phys(to_mdev(pd->device),
990 to_mpd(pd)->pd_num,
991 page_list, shift, npages,
992 *iova_start, total_size,
993 convert_access(acc), mr);
994
995 if (err) {
996 kfree(page_list);
997 kfree(mr);
998 return ERR_PTR(err);
999 }
1000
1001 kfree(page_list);
1002 mr->umem = NULL;
1003
1004 return &mr->ibmr;
1005 }
1006
1007 static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
1008 u64 virt, int acc, struct ib_udata *udata)
1009 {
1010 struct mthca_dev *dev = to_mdev(pd->device);
1011 struct ib_umem_chunk *chunk;
1012 struct mthca_mr *mr;
1013 struct mthca_reg_mr ucmd;
1014 u64 *pages;
1015 int shift, n, len;
1016 int i, j, k;
1017 int err = 0;
1018 int write_mtt_size;
1019
1020 if (udata->inlen - sizeof (struct ib_uverbs_cmd_hdr) < sizeof ucmd) {
1021 if (!to_mucontext(pd->uobject->context)->reg_mr_warned) {
1022 mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n",
1023 current->comm);
1024 mthca_warn(dev, " Update libmthca to fix this.\n");
1025 }
1026 ++to_mucontext(pd->uobject->context)->reg_mr_warned;
1027 ucmd.mr_attrs = 0;
1028 } else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
1029 return ERR_PTR(-EFAULT);
1030
1031 mr = kmalloc(sizeof *mr, GFP_KERNEL);
1032 if (!mr)
1033 return ERR_PTR(-ENOMEM);
1034
1035 mr->umem = ib_umem_get(pd->uobject->context, start, length, acc,
1036 ucmd.mr_attrs & MTHCA_MR_DMASYNC);
1037
1038 if (IS_ERR(mr->umem)) {
1039 err = PTR_ERR(mr->umem);
1040 goto err;
1041 }
1042
1043 shift = ffs(mr->umem->page_size) - 1;
1044
1045 n = 0;
1046 list_for_each_entry(chunk, &mr->umem->chunk_list, list)
1047 n += chunk->nents;
1048
1049 mr->mtt = mthca_alloc_mtt(dev, n);
1050 if (IS_ERR(mr->mtt)) {
1051 err = PTR_ERR(mr->mtt);
1052 goto err_umem;
1053 }
1054
1055 pages = (u64 *) __get_free_page(GFP_KERNEL);
1056 if (!pages) {
1057 err = -ENOMEM;
1058 goto err_mtt;
1059 }
1060
1061 i = n = 0;
1062
1063 write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages));
1064
1065 list_for_each_entry(chunk, &mr->umem->chunk_list, list)
1066 for (j = 0; j < chunk->nmap; ++j) {
1067 len = sg_dma_len(&chunk->page_list[j]) >> shift;
1068 for (k = 0; k < len; ++k) {
1069 pages[i++] = sg_dma_address(&chunk->page_list[j]) +
1070 mr->umem->page_size * k;
1071 /*
1072 * Be friendly to write_mtt and pass it chunks
1073 * of appropriate size.
1074 */
1075 if (i == write_mtt_size) {
1076 err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
1077 if (err)
1078 goto mtt_done;
1079 n += i;
1080 i = 0;
1081 }
1082 }
1083 }
1084
1085 if (i)
1086 err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
1087 mtt_done:
1088 free_page((unsigned long) pages);
1089 if (err)
1090 goto err_mtt;
1091
1092 err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length,
1093 convert_access(acc), mr);
1094
1095 if (err)
1096 goto err_mtt;
1097
1098 return &mr->ibmr;
1099
1100 err_mtt:
1101 mthca_free_mtt(dev, mr->mtt);
1102
1103 err_umem:
1104 ib_umem_release(mr->umem);
1105
1106 err:
1107 kfree(mr);
1108 return ERR_PTR(err);
1109 }
1110
1111 static int mthca_dereg_mr(struct ib_mr *mr)
1112 {
1113 struct mthca_mr *mmr = to_mmr(mr);
1114
1115 mthca_free_mr(to_mdev(mr->device), mmr);
1116 if (mmr->umem)
1117 ib_umem_release(mmr->umem);
1118 kfree(mmr);
1119
1120 return 0;
1121 }
1122
1123 static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
1124 struct ib_fmr_attr *fmr_attr)
1125 {
1126 struct mthca_fmr *fmr;
1127 int err;
1128
1129 fmr = kmalloc(sizeof *fmr, GFP_KERNEL);
1130 if (!fmr)
1131 return ERR_PTR(-ENOMEM);
1132
1133 memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr);
1134 err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num,
1135 convert_access(mr_access_flags), fmr);
1136
1137 if (err) {
1138 kfree(fmr);
1139 return ERR_PTR(err);
1140 }
1141
1142 return &fmr->ibmr;
1143 }
1144
1145 static int mthca_dealloc_fmr(struct ib_fmr *fmr)
1146 {
1147 struct mthca_fmr *mfmr = to_mfmr(fmr);
1148 int err;
1149
1150 err = mthca_free_fmr(to_mdev(fmr->device), mfmr);
1151 if (err)
1152 return err;
1153
1154 kfree(mfmr);
1155 return 0;
1156 }
1157
1158 static int mthca_unmap_fmr(struct list_head *fmr_list)
1159 {
1160 struct ib_fmr *fmr;
1161 int err;
1162 u8 status;
1163 struct mthca_dev *mdev = NULL;
1164
1165 list_for_each_entry(fmr, fmr_list, list) {
1166 if (mdev && to_mdev(fmr->device) != mdev)
1167 return -EINVAL;
1168 mdev = to_mdev(fmr->device);
1169 }
1170
1171 if (!mdev)
1172 return 0;
1173
1174 if (mthca_is_memfree(mdev)) {
1175 list_for_each_entry(fmr, fmr_list, list)
1176 mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr));
1177
1178 wmb();
1179 } else
1180 list_for_each_entry(fmr, fmr_list, list)
1181 mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr));
1182
1183 err = mthca_SYNC_TPT(mdev, &status);
1184 if (err)
1185 return err;
1186 if (status)
1187 return -EINVAL;
1188 return 0;
1189 }
1190
1191 static ssize_t show_rev(struct device *device, struct device_attribute *attr,
1192 char *buf)
1193 {
1194 struct mthca_dev *dev =
1195 container_of(device, struct mthca_dev, ib_dev.dev);
1196 return sprintf(buf, "%x\n", dev->rev_id);
1197 }
1198
1199 static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
1200 char *buf)
1201 {
1202 struct mthca_dev *dev =
1203 container_of(device, struct mthca_dev, ib_dev.dev);
1204 return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32),
1205 (int) (dev->fw_ver >> 16) & 0xffff,
1206 (int) dev->fw_ver & 0xffff);
1207 }
1208
1209 static ssize_t show_hca(struct device *device, struct device_attribute *attr,
1210 char *buf)
1211 {
1212 struct mthca_dev *dev =
1213 container_of(device, struct mthca_dev, ib_dev.dev);
1214 switch (dev->pdev->device) {
1215 case PCI_DEVICE_ID_MELLANOX_TAVOR:
1216 return sprintf(buf, "MT23108\n");
1217 case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT:
1218 return sprintf(buf, "MT25208 (MT23108 compat mode)\n");
1219 case PCI_DEVICE_ID_MELLANOX_ARBEL:
1220 return sprintf(buf, "MT25208\n");
1221 case PCI_DEVICE_ID_MELLANOX_SINAI:
1222 case PCI_DEVICE_ID_MELLANOX_SINAI_OLD:
1223 return sprintf(buf, "MT25204\n");
1224 default:
1225 return sprintf(buf, "unknown\n");
1226 }
1227 }
1228
1229 static ssize_t show_board(struct device *device, struct device_attribute *attr,
1230 char *buf)
1231 {
1232 struct mthca_dev *dev =
1233 container_of(device, struct mthca_dev, ib_dev.dev);
1234 return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id);
1235 }
1236
1237 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
1238 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
1239 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
1240 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
1241
1242 static struct device_attribute *mthca_dev_attributes[] = {
1243 &dev_attr_hw_rev,
1244 &dev_attr_fw_ver,
1245 &dev_attr_hca_type,
1246 &dev_attr_board_id
1247 };
1248
1249 static int mthca_init_node_data(struct mthca_dev *dev)
1250 {
1251 struct ib_smp *in_mad = NULL;
1252 struct ib_smp *out_mad = NULL;
1253 int err = -ENOMEM;
1254 u8 status;
1255
1256 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
1257 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
1258 if (!in_mad || !out_mad)
1259 goto out;
1260
1261 init_query_mad(in_mad);
1262 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
1263
1264 err = mthca_MAD_IFC(dev, 1, 1,
1265 1, NULL, NULL, in_mad, out_mad,
1266 &status);
1267 if (err)
1268 goto out;
1269 if (status) {
1270 err = -EINVAL;
1271 goto out;
1272 }
1273
1274 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
1275
1276 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
1277
1278 err = mthca_MAD_IFC(dev, 1, 1,
1279 1, NULL, NULL, in_mad, out_mad,
1280 &status);
1281 if (err)
1282 goto out;
1283 if (status) {
1284 err = -EINVAL;
1285 goto out;
1286 }
1287
1288 if (mthca_is_memfree(dev))
1289 dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
1290 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
1291
1292 out:
1293 kfree(in_mad);
1294 kfree(out_mad);
1295 return err;
1296 }
1297
1298 int mthca_register_device(struct mthca_dev *dev)
1299 {
1300 int ret;
1301 int i;
1302
1303 ret = mthca_init_node_data(dev);
1304 if (ret)
1305 return ret;
1306
1307 strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX);
1308 dev->ib_dev.owner = THIS_MODULE;
1309
1310 dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION;
1311 dev->ib_dev.uverbs_cmd_mask =
1312 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1313 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1314 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1315 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1316 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1317 (1ull << IB_USER_VERBS_CMD_REG_MR) |
1318 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1319 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1320 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
1321 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
1322 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1323 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1324 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
1325 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
1326 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1327 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
1328 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST);
1329 dev->ib_dev.node_type = RDMA_NODE_IB_CA;
1330 dev->ib_dev.phys_port_cnt = dev->limits.num_ports;
1331 dev->ib_dev.num_comp_vectors = 1;
1332 dev->ib_dev.dma_device = &dev->pdev->dev;
1333 dev->ib_dev.query_device = mthca_query_device;
1334 dev->ib_dev.query_port = mthca_query_port;
1335 dev->ib_dev.modify_device = mthca_modify_device;
1336 dev->ib_dev.modify_port = mthca_modify_port;
1337 dev->ib_dev.query_pkey = mthca_query_pkey;
1338 dev->ib_dev.query_gid = mthca_query_gid;
1339 dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext;
1340 dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext;
1341 dev->ib_dev.mmap = mthca_mmap_uar;
1342 dev->ib_dev.alloc_pd = mthca_alloc_pd;
1343 dev->ib_dev.dealloc_pd = mthca_dealloc_pd;
1344 dev->ib_dev.create_ah = mthca_ah_create;
1345 dev->ib_dev.query_ah = mthca_ah_query;
1346 dev->ib_dev.destroy_ah = mthca_ah_destroy;
1347
1348 if (dev->mthca_flags & MTHCA_FLAG_SRQ) {
1349 dev->ib_dev.create_srq = mthca_create_srq;
1350 dev->ib_dev.modify_srq = mthca_modify_srq;
1351 dev->ib_dev.query_srq = mthca_query_srq;
1352 dev->ib_dev.destroy_srq = mthca_destroy_srq;
1353 dev->ib_dev.uverbs_cmd_mask |=
1354 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
1355 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
1356 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
1357 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
1358
1359 if (mthca_is_memfree(dev))
1360 dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv;
1361 else
1362 dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv;
1363 }
1364
1365 dev->ib_dev.create_qp = mthca_create_qp;
1366 dev->ib_dev.modify_qp = mthca_modify_qp;
1367 dev->ib_dev.query_qp = mthca_query_qp;
1368 dev->ib_dev.destroy_qp = mthca_destroy_qp;
1369 dev->ib_dev.create_cq = mthca_create_cq;
1370 dev->ib_dev.resize_cq = mthca_resize_cq;
1371 dev->ib_dev.destroy_cq = mthca_destroy_cq;
1372 dev->ib_dev.poll_cq = mthca_poll_cq;
1373 dev->ib_dev.get_dma_mr = mthca_get_dma_mr;
1374 dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr;
1375 dev->ib_dev.reg_user_mr = mthca_reg_user_mr;
1376 dev->ib_dev.dereg_mr = mthca_dereg_mr;
1377
1378 if (dev->mthca_flags & MTHCA_FLAG_FMR) {
1379 dev->ib_dev.alloc_fmr = mthca_alloc_fmr;
1380 dev->ib_dev.unmap_fmr = mthca_unmap_fmr;
1381 dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr;
1382 if (mthca_is_memfree(dev))
1383 dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr;
1384 else
1385 dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr;
1386 }
1387
1388 dev->ib_dev.attach_mcast = mthca_multicast_attach;
1389 dev->ib_dev.detach_mcast = mthca_multicast_detach;
1390 dev->ib_dev.process_mad = mthca_process_mad;
1391
1392 if (mthca_is_memfree(dev)) {
1393 dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq;
1394 dev->ib_dev.post_send = mthca_arbel_post_send;
1395 dev->ib_dev.post_recv = mthca_arbel_post_receive;
1396 } else {
1397 dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq;
1398 dev->ib_dev.post_send = mthca_tavor_post_send;
1399 dev->ib_dev.post_recv = mthca_tavor_post_receive;
1400 }
1401
1402 mutex_init(&dev->cap_mask_mutex);
1403
1404 ret = ib_register_device(&dev->ib_dev);
1405 if (ret)
1406 return ret;
1407
1408 for (i = 0; i < ARRAY_SIZE(mthca_dev_attributes); ++i) {
1409 ret = device_create_file(&dev->ib_dev.dev,
1410 mthca_dev_attributes[i]);
1411 if (ret) {
1412 ib_unregister_device(&dev->ib_dev);
1413 return ret;
1414 }
1415 }
1416
1417 mthca_start_catas_poll(dev);
1418
1419 return 0;
1420 }
1421
1422 void mthca_unregister_device(struct mthca_dev *dev)
1423 {
1424 mthca_stop_catas_poll(dev);
1425 ib_unregister_device(&dev->ib_dev);
1426 }
Mirror for ia64_pv_ops.git