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of: MSI: Simplify irqdomain lookup
[linux/fpc-iii.git] / drivers / infiniband / hw / mthca / mthca_provider.c
blobdc2d48c59e6274c54e84af0d26b4da1b56271b13
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
37 #include <rdma/ib_smi.h>
38 #include <rdma/ib_umem.h>
39 #include <rdma/ib_user_verbs.h>
40
41 #include <linux/sched.h>
42 #include <linux/slab.h>
43 #include <linux/stat.h>
44 #include <linux/mm.h>
45 #include <linux/export.h>
46
47 #include "mthca_dev.h"
48 #include "mthca_cmd.h"
49 #include "mthca_user.h"
50 #include "mthca_memfree.h"
51
52 static void init_query_mad(struct ib_smp *mad)
53 {
54 mad->base_version = 1;
55 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
56 mad->class_version = 1;
57 mad->method = IB_MGMT_METHOD_GET;
58 }
59
60 static int mthca_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
61 struct ib_udata *uhw)
62 {
63 struct ib_smp *in_mad = NULL;
64 struct ib_smp *out_mad = NULL;
65 int err = -ENOMEM;
66 struct mthca_dev *mdev = to_mdev(ibdev);
67
68 if (uhw->inlen || uhw->outlen)
69 return -EINVAL;
70
71 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
72 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
73 if (!in_mad || !out_mad)
74 goto out;
75
76 memset(props, 0, sizeof *props);
77
78 props->fw_ver = mdev->fw_ver;
79
80 init_query_mad(in_mad);
81 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
82
83 err = mthca_MAD_IFC(mdev, 1, 1,
84 1, NULL, NULL, in_mad, out_mad);
85 if (err)
86 goto out;
87
88 props->device_cap_flags = mdev->device_cap_flags;
89 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
90 0xffffff;
91 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30));
92 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32));
93 memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
94
95 props->max_mr_size = ~0ull;
96 props->page_size_cap = mdev->limits.page_size_cap;
97 props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps;
98 props->max_qp_wr = mdev->limits.max_wqes;
99 props->max_sge = mdev->limits.max_sg;
100 props->max_sge_rd = props->max_sge;
101 props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs;
102 props->max_cqe = mdev->limits.max_cqes;
103 props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws;
104 props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds;
105 props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift;
106 props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma;
107 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
108 props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs;
109 props->max_srq_wr = mdev->limits.max_srq_wqes;
110 props->max_srq_sge = mdev->limits.max_srq_sge;
111 props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay;
112 props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ?
113 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
114 props->max_pkeys = mdev->limits.pkey_table_len;
115 props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms;
116 props->max_mcast_qp_attach = MTHCA_QP_PER_MGM;
117 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
118 props->max_mcast_grp;
119 /*
120 * If Sinai memory key optimization is being used, then only
121 * the 8-bit key portion will change. For other HCAs, the
122 * unused index bits will also be used for FMR remapping.
123 */
124 if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
125 props->max_map_per_fmr = 255;
126 else
127 props->max_map_per_fmr =
128 (1 << (32 - ilog2(mdev->limits.num_mpts))) - 1;
129
130 err = 0;
131 out:
132 kfree(in_mad);
133 kfree(out_mad);
134 return err;
135 }
136
137 static int mthca_query_port(struct ib_device *ibdev,
138 u8 port, struct ib_port_attr *props)
139 {
140 struct ib_smp *in_mad = NULL;
141 struct ib_smp *out_mad = NULL;
142 int err = -ENOMEM;
143
144 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
145 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
146 if (!in_mad || !out_mad)
147 goto out;
148
149 memset(props, 0, sizeof *props);
150
151 init_query_mad(in_mad);
152 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
153 in_mad->attr_mod = cpu_to_be32(port);
154
155 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
156 port, NULL, NULL, in_mad, out_mad);
157 if (err)
158 goto out;
159
160 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
161 props->lmc = out_mad->data[34] & 0x7;
162 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
163 props->sm_sl = out_mad->data[36] & 0xf;
164 props->state = out_mad->data[32] & 0xf;
165 props->phys_state = out_mad->data[33] >> 4;
166 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
167 props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len;
168 props->max_msg_sz = 0x80000000;
169 props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len;
170 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
171 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
172 props->active_width = out_mad->data[31] & 0xf;
173 props->active_speed = out_mad->data[35] >> 4;
174 props->max_mtu = out_mad->data[41] & 0xf;
175 props->active_mtu = out_mad->data[36] >> 4;
176 props->subnet_timeout = out_mad->data[51] & 0x1f;
177 props->max_vl_num = out_mad->data[37] >> 4;
178 props->init_type_reply = out_mad->data[41] >> 4;
179
180 out:
181 kfree(in_mad);
182 kfree(out_mad);
183 return err;
184 }
185
186 static int mthca_modify_device(struct ib_device *ibdev,
187 int mask,
188 struct ib_device_modify *props)
189 {
190 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
191 return -EOPNOTSUPP;
192
193 if (mask & IB_DEVICE_MODIFY_NODE_DESC) {
194 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
195 return -ERESTARTSYS;
196 memcpy(ibdev->node_desc, props->node_desc, 64);
197 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
198 }
199
200 return 0;
201 }
202
203 static int mthca_modify_port(struct ib_device *ibdev,
204 u8 port, int port_modify_mask,
205 struct ib_port_modify *props)
206 {
207 struct mthca_set_ib_param set_ib;
208 struct ib_port_attr attr;
209 int err;
210
211 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
212 return -ERESTARTSYS;
213
214 err = mthca_query_port(ibdev, port, &attr);
215 if (err)
216 goto out;
217
218 set_ib.set_si_guid = 0;
219 set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR);
220
221 set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
222 ~props->clr_port_cap_mask;
223
224 err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port);
225 if (err)
226 goto out;
227 out:
228 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
229 return err;
230 }
231
232 static int mthca_query_pkey(struct ib_device *ibdev,
233 u8 port, u16 index, u16 *pkey)
234 {
235 struct ib_smp *in_mad = NULL;
236 struct ib_smp *out_mad = NULL;
237 int err = -ENOMEM;
238
239 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
240 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
241 if (!in_mad || !out_mad)
242 goto out;
243
244 init_query_mad(in_mad);
245 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
246 in_mad->attr_mod = cpu_to_be32(index / 32);
247
248 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
249 port, NULL, NULL, in_mad, out_mad);
250 if (err)
251 goto out;
252
253 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
254
255 out:
256 kfree(in_mad);
257 kfree(out_mad);
258 return err;
259 }
260
261 static int mthca_query_gid(struct ib_device *ibdev, u8 port,
262 int index, union ib_gid *gid)
263 {
264 struct ib_smp *in_mad = NULL;
265 struct ib_smp *out_mad = NULL;
266 int err = -ENOMEM;
267
268 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
269 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
270 if (!in_mad || !out_mad)
271 goto out;
272
273 init_query_mad(in_mad);
274 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
275 in_mad->attr_mod = cpu_to_be32(port);
276
277 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
278 port, NULL, NULL, in_mad, out_mad);
279 if (err)
280 goto out;
281
282 memcpy(gid->raw, out_mad->data + 8, 8);
283
284 init_query_mad(in_mad);
285 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
286 in_mad->attr_mod = cpu_to_be32(index / 8);
287
288 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1,
289 port, NULL, NULL, in_mad, out_mad);
290 if (err)
291 goto out;
292
293 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
294
295 out:
296 kfree(in_mad);
297 kfree(out_mad);
298 return err;
299 }
300
301 static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev,
302 struct ib_udata *udata)
303 {
304 struct mthca_alloc_ucontext_resp uresp;
305 struct mthca_ucontext *context;
306 int err;
307
308 if (!(to_mdev(ibdev)->active))
309 return ERR_PTR(-EAGAIN);
310
311 memset(&uresp, 0, sizeof uresp);
312
313 uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps;
314 if (mthca_is_memfree(to_mdev(ibdev)))
315 uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size;
316 else
317 uresp.uarc_size = 0;
318
319 context = kmalloc(sizeof *context, GFP_KERNEL);
320 if (!context)
321 return ERR_PTR(-ENOMEM);
322
323 err = mthca_uar_alloc(to_mdev(ibdev), &context->uar);
324 if (err) {
325 kfree(context);
326 return ERR_PTR(err);
327 }
328
329 context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev));
330 if (IS_ERR(context->db_tab)) {
331 err = PTR_ERR(context->db_tab);
332 mthca_uar_free(to_mdev(ibdev), &context->uar);
333 kfree(context);
334 return ERR_PTR(err);
335 }
336
337 if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) {
338 mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab);
339 mthca_uar_free(to_mdev(ibdev), &context->uar);
340 kfree(context);
341 return ERR_PTR(-EFAULT);
342 }
343
344 context->reg_mr_warned = 0;
345
346 return &context->ibucontext;
347 }
348
349 static int mthca_dealloc_ucontext(struct ib_ucontext *context)
350 {
351 mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar,
352 to_mucontext(context)->db_tab);
353 mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar);
354 kfree(to_mucontext(context));
355
356 return 0;
357 }
358
359 static int mthca_mmap_uar(struct ib_ucontext *context,
360 struct vm_area_struct *vma)
361 {
362 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
363 return -EINVAL;
364
365 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
366
367 if (io_remap_pfn_range(vma, vma->vm_start,
368 to_mucontext(context)->uar.pfn,
369 PAGE_SIZE, vma->vm_page_prot))
370 return -EAGAIN;
371
372 return 0;
373 }
374
375 static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev,
376 struct ib_ucontext *context,
377 struct ib_udata *udata)
378 {
379 struct mthca_pd *pd;
380 int err;
381
382 pd = kmalloc(sizeof *pd, GFP_KERNEL);
383 if (!pd)
384 return ERR_PTR(-ENOMEM);
385
386 err = mthca_pd_alloc(to_mdev(ibdev), !context, pd);
387 if (err) {
388 kfree(pd);
389 return ERR_PTR(err);
390 }
391
392 if (context) {
393 if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) {
394 mthca_pd_free(to_mdev(ibdev), pd);
395 kfree(pd);
396 return ERR_PTR(-EFAULT);
397 }
398 }
399
400 return &pd->ibpd;
401 }
402
403 static int mthca_dealloc_pd(struct ib_pd *pd)
404 {
405 mthca_pd_free(to_mdev(pd->device), to_mpd(pd));
406 kfree(pd);
407
408 return 0;
409 }
410
411 static struct ib_ah *mthca_ah_create(struct ib_pd *pd,
412 struct ib_ah_attr *ah_attr)
413 {
414 int err;
415 struct mthca_ah *ah;
416
417 ah = kmalloc(sizeof *ah, GFP_ATOMIC);
418 if (!ah)
419 return ERR_PTR(-ENOMEM);
420
421 err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah);
422 if (err) {
423 kfree(ah);
424 return ERR_PTR(err);
425 }
426
427 return &ah->ibah;
428 }
429
430 static int mthca_ah_destroy(struct ib_ah *ah)
431 {
432 mthca_destroy_ah(to_mdev(ah->device), to_mah(ah));
433 kfree(ah);
434
435 return 0;
436 }
437
438 static struct ib_srq *mthca_create_srq(struct ib_pd *pd,
439 struct ib_srq_init_attr *init_attr,
440 struct ib_udata *udata)
441 {
442 struct mthca_create_srq ucmd;
443 struct mthca_ucontext *context = NULL;
444 struct mthca_srq *srq;
445 int err;
446
447 if (init_attr->srq_type != IB_SRQT_BASIC)
448 return ERR_PTR(-ENOSYS);
449
450 srq = kmalloc(sizeof *srq, GFP_KERNEL);
451 if (!srq)
452 return ERR_PTR(-ENOMEM);
453
454 if (pd->uobject) {
455 context = to_mucontext(pd->uobject->context);
456
457 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
458 err = -EFAULT;
459 goto err_free;
460 }
461
462 err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
463 context->db_tab, ucmd.db_index,
464 ucmd.db_page);
465
466 if (err)
467 goto err_free;
468
469 srq->mr.ibmr.lkey = ucmd.lkey;
470 srq->db_index = ucmd.db_index;
471 }
472
473 err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd),
474 &init_attr->attr, srq);
475
476 if (err && pd->uobject)
477 mthca_unmap_user_db(to_mdev(pd->device), &context->uar,
478 context->db_tab, ucmd.db_index);
479
480 if (err)
481 goto err_free;
482
483 if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) {
484 mthca_free_srq(to_mdev(pd->device), srq);
485 err = -EFAULT;
486 goto err_free;
487 }
488
489 return &srq->ibsrq;
490
491 err_free:
492 kfree(srq);
493
494 return ERR_PTR(err);
495 }
496
497 static int mthca_destroy_srq(struct ib_srq *srq)
498 {
499 struct mthca_ucontext *context;
500
501 if (srq->uobject) {
502 context = to_mucontext(srq->uobject->context);
503
504 mthca_unmap_user_db(to_mdev(srq->device), &context->uar,
505 context->db_tab, to_msrq(srq)->db_index);
506 }
507
508 mthca_free_srq(to_mdev(srq->device), to_msrq(srq));
509 kfree(srq);
510
511 return 0;
512 }
513
514 static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
515 struct ib_qp_init_attr *init_attr,
516 struct ib_udata *udata)
517 {
518 struct mthca_create_qp ucmd;
519 struct mthca_qp *qp;
520 int err;
521
522 if (init_attr->create_flags)
523 return ERR_PTR(-EINVAL);
524
525 switch (init_attr->qp_type) {
526 case IB_QPT_RC:
527 case IB_QPT_UC:
528 case IB_QPT_UD:
529 {
530 struct mthca_ucontext *context;
531
532 qp = kmalloc(sizeof *qp, GFP_KERNEL);
533 if (!qp)
534 return ERR_PTR(-ENOMEM);
535
536 if (pd->uobject) {
537 context = to_mucontext(pd->uobject->context);
538
539 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
540 kfree(qp);
541 return ERR_PTR(-EFAULT);
542 }
543
544 err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
545 context->db_tab,
546 ucmd.sq_db_index, ucmd.sq_db_page);
547 if (err) {
548 kfree(qp);
549 return ERR_PTR(err);
550 }
551
552 err = mthca_map_user_db(to_mdev(pd->device), &context->uar,
553 context->db_tab,
554 ucmd.rq_db_index, ucmd.rq_db_page);
555 if (err) {
556 mthca_unmap_user_db(to_mdev(pd->device),
557 &context->uar,
558 context->db_tab,
559 ucmd.sq_db_index);
560 kfree(qp);
561 return ERR_PTR(err);
562 }
563
564 qp->mr.ibmr.lkey = ucmd.lkey;
565 qp->sq.db_index = ucmd.sq_db_index;
566 qp->rq.db_index = ucmd.rq_db_index;
567 }
568
569 err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd),
570 to_mcq(init_attr->send_cq),
571 to_mcq(init_attr->recv_cq),
572 init_attr->qp_type, init_attr->sq_sig_type,
573 &init_attr->cap, qp);
574
575 if (err && pd->uobject) {
576 context = to_mucontext(pd->uobject->context);
577
578 mthca_unmap_user_db(to_mdev(pd->device),
579 &context->uar,
580 context->db_tab,
581 ucmd.sq_db_index);
582 mthca_unmap_user_db(to_mdev(pd->device),
583 &context->uar,
584 context->db_tab,
585 ucmd.rq_db_index);
586 }
587
588 qp->ibqp.qp_num = qp->qpn;
589 break;
590 }
591 case IB_QPT_SMI:
592 case IB_QPT_GSI:
593 {
594 /* Don't allow userspace to create special QPs */
595 if (pd->uobject)
596 return ERR_PTR(-EINVAL);
597
598 qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL);
599 if (!qp)
600 return ERR_PTR(-ENOMEM);
601
602 qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1;
603
604 err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd),
605 to_mcq(init_attr->send_cq),
606 to_mcq(init_attr->recv_cq),
607 init_attr->sq_sig_type, &init_attr->cap,
608 qp->ibqp.qp_num, init_attr->port_num,
609 to_msqp(qp));
610 break;
611 }
612 default:
613 /* Don't support raw QPs */
614 return ERR_PTR(-ENOSYS);
615 }
616
617 if (err) {
618 kfree(qp);
619 return ERR_PTR(err);
620 }
621
622 init_attr->cap.max_send_wr = qp->sq.max;
623 init_attr->cap.max_recv_wr = qp->rq.max;
624 init_attr->cap.max_send_sge = qp->sq.max_gs;
625 init_attr->cap.max_recv_sge = qp->rq.max_gs;
626 init_attr->cap.max_inline_data = qp->max_inline_data;
627
628 return &qp->ibqp;
629 }
630
631 static int mthca_destroy_qp(struct ib_qp *qp)
632 {
633 if (qp->uobject) {
634 mthca_unmap_user_db(to_mdev(qp->device),
635 &to_mucontext(qp->uobject->context)->uar,
636 to_mucontext(qp->uobject->context)->db_tab,
637 to_mqp(qp)->sq.db_index);
638 mthca_unmap_user_db(to_mdev(qp->device),
639 &to_mucontext(qp->uobject->context)->uar,
640 to_mucontext(qp->uobject->context)->db_tab,
641 to_mqp(qp)->rq.db_index);
642 }
643 mthca_free_qp(to_mdev(qp->device), to_mqp(qp));
644 kfree(qp);
645 return 0;
646 }
647
648 static struct ib_cq *mthca_create_cq(struct ib_device *ibdev,
649 const struct ib_cq_init_attr *attr,
650 struct ib_ucontext *context,
651 struct ib_udata *udata)
652 {
653 int entries = attr->cqe;
654 struct mthca_create_cq ucmd;
655 struct mthca_cq *cq;
656 int nent;
657 int err;
658
659 if (attr->flags)
660 return ERR_PTR(-EINVAL);
661
662 if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes)
663 return ERR_PTR(-EINVAL);
664
665 if (context) {
666 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
667 return ERR_PTR(-EFAULT);
668
669 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
670 to_mucontext(context)->db_tab,
671 ucmd.set_db_index, ucmd.set_db_page);
672 if (err)
673 return ERR_PTR(err);
674
675 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
676 to_mucontext(context)->db_tab,
677 ucmd.arm_db_index, ucmd.arm_db_page);
678 if (err)
679 goto err_unmap_set;
680 }
681
682 cq = kmalloc(sizeof *cq, GFP_KERNEL);
683 if (!cq) {
684 err = -ENOMEM;
685 goto err_unmap_arm;
686 }
687
688 if (context) {
689 cq->buf.mr.ibmr.lkey = ucmd.lkey;
690 cq->set_ci_db_index = ucmd.set_db_index;
691 cq->arm_db_index = ucmd.arm_db_index;
692 }
693
694 for (nent = 1; nent <= entries; nent <<= 1)
695 ; /* nothing */
696
697 err = mthca_init_cq(to_mdev(ibdev), nent,
698 context ? to_mucontext(context) : NULL,
699 context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num,
700 cq);
701 if (err)
702 goto err_free;
703
704 if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) {
705 mthca_free_cq(to_mdev(ibdev), cq);
706 err = -EFAULT;
707 goto err_free;
708 }
709
710 cq->resize_buf = NULL;
711
712 return &cq->ibcq;
713
714 err_free:
715 kfree(cq);
716
717 err_unmap_arm:
718 if (context)
719 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
720 to_mucontext(context)->db_tab, ucmd.arm_db_index);
721
722 err_unmap_set:
723 if (context)
724 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar,
725 to_mucontext(context)->db_tab, ucmd.set_db_index);
726
727 return ERR_PTR(err);
728 }
729
730 static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq,
731 int entries)
732 {
733 int ret;
734
735 spin_lock_irq(&cq->lock);
736 if (cq->resize_buf) {
737 ret = -EBUSY;
738 goto unlock;
739 }
740
741 cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC);
742 if (!cq->resize_buf) {
743 ret = -ENOMEM;
744 goto unlock;
745 }
746
747 cq->resize_buf->state = CQ_RESIZE_ALLOC;
748
749 ret = 0;
750
751 unlock:
752 spin_unlock_irq(&cq->lock);
753
754 if (ret)
755 return ret;
756
757 ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries);
758 if (ret) {
759 spin_lock_irq(&cq->lock);
760 kfree(cq->resize_buf);
761 cq->resize_buf = NULL;
762 spin_unlock_irq(&cq->lock);
763 return ret;
764 }
765
766 cq->resize_buf->cqe = entries - 1;
767
768 spin_lock_irq(&cq->lock);
769 cq->resize_buf->state = CQ_RESIZE_READY;
770 spin_unlock_irq(&cq->lock);
771
772 return 0;
773 }
774
775 static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
776 {
777 struct mthca_dev *dev = to_mdev(ibcq->device);
778 struct mthca_cq *cq = to_mcq(ibcq);
779 struct mthca_resize_cq ucmd;
780 u32 lkey;
781 int ret;
782
783 if (entries < 1 || entries > dev->limits.max_cqes)
784 return -EINVAL;
785
786 mutex_lock(&cq->mutex);
787
788 entries = roundup_pow_of_two(entries + 1);
789 if (entries == ibcq->cqe + 1) {
790 ret = 0;
791 goto out;
792 }
793
794 if (cq->is_kernel) {
795 ret = mthca_alloc_resize_buf(dev, cq, entries);
796 if (ret)
797 goto out;
798 lkey = cq->resize_buf->buf.mr.ibmr.lkey;
799 } else {
800 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
801 ret = -EFAULT;
802 goto out;
803 }
804 lkey = ucmd.lkey;
805 }
806
807 ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries));
808
809 if (ret) {
810 if (cq->resize_buf) {
811 mthca_free_cq_buf(dev, &cq->resize_buf->buf,
812 cq->resize_buf->cqe);
813 kfree(cq->resize_buf);
814 spin_lock_irq(&cq->lock);
815 cq->resize_buf = NULL;
816 spin_unlock_irq(&cq->lock);
817 }
818 goto out;
819 }
820
821 if (cq->is_kernel) {
822 struct mthca_cq_buf tbuf;
823 int tcqe;
824
825 spin_lock_irq(&cq->lock);
826 if (cq->resize_buf->state == CQ_RESIZE_READY) {
827 mthca_cq_resize_copy_cqes(cq);
828 tbuf = cq->buf;
829 tcqe = cq->ibcq.cqe;
830 cq->buf = cq->resize_buf->buf;
831 cq->ibcq.cqe = cq->resize_buf->cqe;
832 } else {
833 tbuf = cq->resize_buf->buf;
834 tcqe = cq->resize_buf->cqe;
835 }
836
837 kfree(cq->resize_buf);
838 cq->resize_buf = NULL;
839 spin_unlock_irq(&cq->lock);
840
841 mthca_free_cq_buf(dev, &tbuf, tcqe);
842 } else
843 ibcq->cqe = entries - 1;
844
845 out:
846 mutex_unlock(&cq->mutex);
847
848 return ret;
849 }
850
851 static int mthca_destroy_cq(struct ib_cq *cq)
852 {
853 if (cq->uobject) {
854 mthca_unmap_user_db(to_mdev(cq->device),
855 &to_mucontext(cq->uobject->context)->uar,
856 to_mucontext(cq->uobject->context)->db_tab,
857 to_mcq(cq)->arm_db_index);
858 mthca_unmap_user_db(to_mdev(cq->device),
859 &to_mucontext(cq->uobject->context)->uar,
860 to_mucontext(cq->uobject->context)->db_tab,
861 to_mcq(cq)->set_ci_db_index);
862 }
863 mthca_free_cq(to_mdev(cq->device), to_mcq(cq));
864 kfree(cq);
865
866 return 0;
867 }
868
869 static inline u32 convert_access(int acc)
870 {
871 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) |
872 (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) |
873 (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) |
874 (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) |
875 MTHCA_MPT_FLAG_LOCAL_READ;
876 }
877
878 static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc)
879 {
880 struct mthca_mr *mr;
881 int err;
882
883 mr = kmalloc(sizeof *mr, GFP_KERNEL);
884 if (!mr)
885 return ERR_PTR(-ENOMEM);
886
887 err = mthca_mr_alloc_notrans(to_mdev(pd->device),
888 to_mpd(pd)->pd_num,
889 convert_access(acc), mr);
890
891 if (err) {
892 kfree(mr);
893 return ERR_PTR(err);
894 }
895
896 mr->umem = NULL;
897
898 return &mr->ibmr;
899 }
900
901 static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd,
902 struct ib_phys_buf *buffer_list,
903 int num_phys_buf,
904 int acc,
905 u64 *iova_start)
906 {
907 struct mthca_mr *mr;
908 u64 *page_list;
909 u64 total_size;
910 unsigned long mask;
911 int shift;
912 int npages;
913 int err;
914 int i, j, n;
915
916 mask = buffer_list[0].addr ^ *iova_start;
917 total_size = 0;
918 for (i = 0; i < num_phys_buf; ++i) {
919 if (i != 0)
920 mask |= buffer_list[i].addr;
921 if (i != num_phys_buf - 1)
922 mask |= buffer_list[i].addr + buffer_list[i].size;
923
924 total_size += buffer_list[i].size;
925 }
926
927 if (mask & ~PAGE_MASK)
928 return ERR_PTR(-EINVAL);
929
930 shift = __ffs(mask | 1 << 31);
931
932 buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1);
933 buffer_list[0].addr &= ~0ull << shift;
934
935 mr = kmalloc(sizeof *mr, GFP_KERNEL);
936 if (!mr)
937 return ERR_PTR(-ENOMEM);
938
939 npages = 0;
940 for (i = 0; i < num_phys_buf; ++i)
941 npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift;
942
943 if (!npages)
944 return &mr->ibmr;
945
946 page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL);
947 if (!page_list) {
948 kfree(mr);
949 return ERR_PTR(-ENOMEM);
950 }
951
952 n = 0;
953 for (i = 0; i < num_phys_buf; ++i)
954 for (j = 0;
955 j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift;
956 ++j)
957 page_list[n++] = buffer_list[i].addr + ((u64) j << shift);
958
959 mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) "
960 "in PD %x; shift %d, npages %d.\n",
961 (unsigned long long) buffer_list[0].addr,
962 (unsigned long long) *iova_start,
963 to_mpd(pd)->pd_num,
964 shift, npages);
965
966 err = mthca_mr_alloc_phys(to_mdev(pd->device),
967 to_mpd(pd)->pd_num,
968 page_list, shift, npages,
969 *iova_start, total_size,
970 convert_access(acc), mr);
971
972 if (err) {
973 kfree(page_list);
974 kfree(mr);
975 return ERR_PTR(err);
976 }
977
978 kfree(page_list);
979 mr->umem = NULL;
980
981 return &mr->ibmr;
982 }
983
984 static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
985 u64 virt, int acc, struct ib_udata *udata)
986 {
987 struct mthca_dev *dev = to_mdev(pd->device);
988 struct scatterlist *sg;
989 struct mthca_mr *mr;
990 struct mthca_reg_mr ucmd;
991 u64 *pages;
992 int shift, n, len;
993 int i, k, entry;
994 int err = 0;
995 int write_mtt_size;
996
997 if (udata->inlen - sizeof (struct ib_uverbs_cmd_hdr) < sizeof ucmd) {
998 if (!to_mucontext(pd->uobject->context)->reg_mr_warned) {
999 mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n",
1000 current->comm);
1001 mthca_warn(dev, " Update libmthca to fix this.\n");
1002 }
1003 ++to_mucontext(pd->uobject->context)->reg_mr_warned;
1004 ucmd.mr_attrs = 0;
1005 } else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
1006 return ERR_PTR(-EFAULT);
1007
1008 mr = kmalloc(sizeof *mr, GFP_KERNEL);
1009 if (!mr)
1010 return ERR_PTR(-ENOMEM);
1011
1012 mr->umem = ib_umem_get(pd->uobject->context, start, length, acc,
1013 ucmd.mr_attrs & MTHCA_MR_DMASYNC);
1014
1015 if (IS_ERR(mr->umem)) {
1016 err = PTR_ERR(mr->umem);
1017 goto err;
1018 }
1019
1020 shift = ffs(mr->umem->page_size) - 1;
1021 n = mr->umem->nmap;
1022
1023 mr->mtt = mthca_alloc_mtt(dev, n);
1024 if (IS_ERR(mr->mtt)) {
1025 err = PTR_ERR(mr->mtt);
1026 goto err_umem;
1027 }
1028
1029 pages = (u64 *) __get_free_page(GFP_KERNEL);
1030 if (!pages) {
1031 err = -ENOMEM;
1032 goto err_mtt;
1033 }
1034
1035 i = n = 0;
1036
1037 write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages));
1038
1039 for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) {
1040 len = sg_dma_len(sg) >> shift;
1041 for (k = 0; k < len; ++k) {
1042 pages[i++] = sg_dma_address(sg) +
1043 mr->umem->page_size * k;
1044 /*
1045 * Be friendly to write_mtt and pass it chunks
1046 * of appropriate size.
1047 */
1048 if (i == write_mtt_size) {
1049 err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
1050 if (err)
1051 goto mtt_done;
1052 n += i;
1053 i = 0;
1054 }
1055 }
1056 }
1057
1058 if (i)
1059 err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
1060 mtt_done:
1061 free_page((unsigned long) pages);
1062 if (err)
1063 goto err_mtt;
1064
1065 err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length,
1066 convert_access(acc), mr);
1067
1068 if (err)
1069 goto err_mtt;
1070
1071 return &mr->ibmr;
1072
1073 err_mtt:
1074 mthca_free_mtt(dev, mr->mtt);
1075
1076 err_umem:
1077 ib_umem_release(mr->umem);
1078
1079 err:
1080 kfree(mr);
1081 return ERR_PTR(err);
1082 }
1083
1084 static int mthca_dereg_mr(struct ib_mr *mr)
1085 {
1086 struct mthca_mr *mmr = to_mmr(mr);
1087
1088 mthca_free_mr(to_mdev(mr->device), mmr);
1089 if (mmr->umem)
1090 ib_umem_release(mmr->umem);
1091 kfree(mmr);
1092
1093 return 0;
1094 }
1095
1096 static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
1097 struct ib_fmr_attr *fmr_attr)
1098 {
1099 struct mthca_fmr *fmr;
1100 int err;
1101
1102 fmr = kmalloc(sizeof *fmr, GFP_KERNEL);
1103 if (!fmr)
1104 return ERR_PTR(-ENOMEM);
1105
1106 memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr);
1107 err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num,
1108 convert_access(mr_access_flags), fmr);
1109
1110 if (err) {
1111 kfree(fmr);
1112 return ERR_PTR(err);
1113 }
1114
1115 return &fmr->ibmr;
1116 }
1117
1118 static int mthca_dealloc_fmr(struct ib_fmr *fmr)
1119 {
1120 struct mthca_fmr *mfmr = to_mfmr(fmr);
1121 int err;
1122
1123 err = mthca_free_fmr(to_mdev(fmr->device), mfmr);
1124 if (err)
1125 return err;
1126
1127 kfree(mfmr);
1128 return 0;
1129 }
1130
1131 static int mthca_unmap_fmr(struct list_head *fmr_list)
1132 {
1133 struct ib_fmr *fmr;
1134 int err;
1135 struct mthca_dev *mdev = NULL;
1136
1137 list_for_each_entry(fmr, fmr_list, list) {
1138 if (mdev && to_mdev(fmr->device) != mdev)
1139 return -EINVAL;
1140 mdev = to_mdev(fmr->device);
1141 }
1142
1143 if (!mdev)
1144 return 0;
1145
1146 if (mthca_is_memfree(mdev)) {
1147 list_for_each_entry(fmr, fmr_list, list)
1148 mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr));
1149
1150 wmb();
1151 } else
1152 list_for_each_entry(fmr, fmr_list, list)
1153 mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr));
1154
1155 err = mthca_SYNC_TPT(mdev);
1156 return err;
1157 }
1158
1159 static ssize_t show_rev(struct device *device, struct device_attribute *attr,
1160 char *buf)
1161 {
1162 struct mthca_dev *dev =
1163 container_of(device, struct mthca_dev, ib_dev.dev);
1164 return sprintf(buf, "%x\n", dev->rev_id);
1165 }
1166
1167 static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
1168 char *buf)
1169 {
1170 struct mthca_dev *dev =
1171 container_of(device, struct mthca_dev, ib_dev.dev);
1172 return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32),
1173 (int) (dev->fw_ver >> 16) & 0xffff,
1174 (int) dev->fw_ver & 0xffff);
1175 }
1176
1177 static ssize_t show_hca(struct device *device, struct device_attribute *attr,
1178 char *buf)
1179 {
1180 struct mthca_dev *dev =
1181 container_of(device, struct mthca_dev, ib_dev.dev);
1182 switch (dev->pdev->device) {
1183 case PCI_DEVICE_ID_MELLANOX_TAVOR:
1184 return sprintf(buf, "MT23108\n");
1185 case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT:
1186 return sprintf(buf, "MT25208 (MT23108 compat mode)\n");
1187 case PCI_DEVICE_ID_MELLANOX_ARBEL:
1188 return sprintf(buf, "MT25208\n");
1189 case PCI_DEVICE_ID_MELLANOX_SINAI:
1190 case PCI_DEVICE_ID_MELLANOX_SINAI_OLD:
1191 return sprintf(buf, "MT25204\n");
1192 default:
1193 return sprintf(buf, "unknown\n");
1194 }
1195 }
1196
1197 static ssize_t show_board(struct device *device, struct device_attribute *attr,
1198 char *buf)
1199 {
1200 struct mthca_dev *dev =
1201 container_of(device, struct mthca_dev, ib_dev.dev);
1202 return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id);
1203 }
1204
1205 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
1206 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
1207 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
1208 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
1209
1210 static struct device_attribute *mthca_dev_attributes[] = {
1211 &dev_attr_hw_rev,
1212 &dev_attr_fw_ver,
1213 &dev_attr_hca_type,
1214 &dev_attr_board_id
1215 };
1216
1217 static int mthca_init_node_data(struct mthca_dev *dev)
1218 {
1219 struct ib_smp *in_mad = NULL;
1220 struct ib_smp *out_mad = NULL;
1221 int err = -ENOMEM;
1222
1223 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
1224 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
1225 if (!in_mad || !out_mad)
1226 goto out;
1227
1228 init_query_mad(in_mad);
1229 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
1230
1231 err = mthca_MAD_IFC(dev, 1, 1,
1232 1, NULL, NULL, in_mad, out_mad);
1233 if (err)
1234 goto out;
1235
1236 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
1237
1238 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
1239
1240 err = mthca_MAD_IFC(dev, 1, 1,
1241 1, NULL, NULL, in_mad, out_mad);
1242 if (err)
1243 goto out;
1244
1245 if (mthca_is_memfree(dev))
1246 dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
1247 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
1248
1249 out:
1250 kfree(in_mad);
1251 kfree(out_mad);
1252 return err;
1253 }
1254
1255 static int mthca_port_immutable(struct ib_device *ibdev, u8 port_num,
1256 struct ib_port_immutable *immutable)
1257 {
1258 struct ib_port_attr attr;
1259 int err;
1260
1261 err = mthca_query_port(ibdev, port_num, &attr);
1262 if (err)
1263 return err;
1264
1265 immutable->pkey_tbl_len = attr.pkey_tbl_len;
1266 immutable->gid_tbl_len = attr.gid_tbl_len;
1267 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB;
1268 immutable->max_mad_size = IB_MGMT_MAD_SIZE;
1269
1270 return 0;
1271 }
1272
1273 int mthca_register_device(struct mthca_dev *dev)
1274 {
1275 int ret;
1276 int i;
1277
1278 ret = mthca_init_node_data(dev);
1279 if (ret)
1280 return ret;
1281
1282 strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX);
1283 dev->ib_dev.owner = THIS_MODULE;
1284
1285 dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION;
1286 dev->ib_dev.uverbs_cmd_mask =
1287 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1288 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1289 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1290 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1291 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1292 (1ull << IB_USER_VERBS_CMD_REG_MR) |
1293 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1294 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1295 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
1296 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
1297 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1298 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1299 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
1300 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
1301 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1302 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
1303 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST);
1304 dev->ib_dev.node_type = RDMA_NODE_IB_CA;
1305 dev->ib_dev.phys_port_cnt = dev->limits.num_ports;
1306 dev->ib_dev.num_comp_vectors = 1;
1307 dev->ib_dev.dma_device = &dev->pdev->dev;
1308 dev->ib_dev.query_device = mthca_query_device;
1309 dev->ib_dev.query_port = mthca_query_port;
1310 dev->ib_dev.modify_device = mthca_modify_device;
1311 dev->ib_dev.modify_port = mthca_modify_port;
1312 dev->ib_dev.query_pkey = mthca_query_pkey;
1313 dev->ib_dev.query_gid = mthca_query_gid;
1314 dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext;
1315 dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext;
1316 dev->ib_dev.mmap = mthca_mmap_uar;
1317 dev->ib_dev.alloc_pd = mthca_alloc_pd;
1318 dev->ib_dev.dealloc_pd = mthca_dealloc_pd;
1319 dev->ib_dev.create_ah = mthca_ah_create;
1320 dev->ib_dev.query_ah = mthca_ah_query;
1321 dev->ib_dev.destroy_ah = mthca_ah_destroy;
1322
1323 if (dev->mthca_flags & MTHCA_FLAG_SRQ) {
1324 dev->ib_dev.create_srq = mthca_create_srq;
1325 dev->ib_dev.modify_srq = mthca_modify_srq;
1326 dev->ib_dev.query_srq = mthca_query_srq;
1327 dev->ib_dev.destroy_srq = mthca_destroy_srq;
1328 dev->ib_dev.uverbs_cmd_mask |=
1329 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
1330 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
1331 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
1332 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
1333
1334 if (mthca_is_memfree(dev))
1335 dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv;
1336 else
1337 dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv;
1338 }
1339
1340 dev->ib_dev.create_qp = mthca_create_qp;
1341 dev->ib_dev.modify_qp = mthca_modify_qp;
1342 dev->ib_dev.query_qp = mthca_query_qp;
1343 dev->ib_dev.destroy_qp = mthca_destroy_qp;
1344 dev->ib_dev.create_cq = mthca_create_cq;
1345 dev->ib_dev.resize_cq = mthca_resize_cq;
1346 dev->ib_dev.destroy_cq = mthca_destroy_cq;
1347 dev->ib_dev.poll_cq = mthca_poll_cq;
1348 dev->ib_dev.get_dma_mr = mthca_get_dma_mr;
1349 dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr;
1350 dev->ib_dev.reg_user_mr = mthca_reg_user_mr;
1351 dev->ib_dev.dereg_mr = mthca_dereg_mr;
1352 dev->ib_dev.get_port_immutable = mthca_port_immutable;
1353
1354 if (dev->mthca_flags & MTHCA_FLAG_FMR) {
1355 dev->ib_dev.alloc_fmr = mthca_alloc_fmr;
1356 dev->ib_dev.unmap_fmr = mthca_unmap_fmr;
1357 dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr;
1358 if (mthca_is_memfree(dev))
1359 dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr;
1360 else
1361 dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr;
1362 }
1363
1364 dev->ib_dev.attach_mcast = mthca_multicast_attach;
1365 dev->ib_dev.detach_mcast = mthca_multicast_detach;
1366 dev->ib_dev.process_mad = mthca_process_mad;
1367
1368 if (mthca_is_memfree(dev)) {
1369 dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq;
1370 dev->ib_dev.post_send = mthca_arbel_post_send;
1371 dev->ib_dev.post_recv = mthca_arbel_post_receive;
1372 } else {
1373 dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq;
1374 dev->ib_dev.post_send = mthca_tavor_post_send;
1375 dev->ib_dev.post_recv = mthca_tavor_post_receive;
1376 }
1377
1378 mutex_init(&dev->cap_mask_mutex);
1379
1380 ret = ib_register_device(&dev->ib_dev, NULL);
1381 if (ret)
1382 return ret;
1383
1384 for (i = 0; i < ARRAY_SIZE(mthca_dev_attributes); ++i) {
1385 ret = device_create_file(&dev->ib_dev.dev,
1386 mthca_dev_attributes[i]);
1387 if (ret) {
1388 ib_unregister_device(&dev->ib_dev);
1389 return ret;
1390 }
1391 }
1392
1393 mthca_start_catas_poll(dev);
1394
1395 return 0;
1396 }
1397
1398 void mthca_unregister_device(struct mthca_dev *dev)
1399 {
1400 mthca_stop_catas_poll(dev);
1401 ib_unregister_device(&dev->ib_dev);
1402 }
Linux with added FPC-III support