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