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ia64/kvm: compilation fix. export account_system_vtime.
[pv_ops_mirror.git] / drivers / infiniband / hw / cxgb3 / iwch_provider.c
blob8934178a23ee6d615ed2a7badfd1758c3aab3f6b
1 /*
2 * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32 #include <linux/module.h>
33 #include <linux/moduleparam.h>
34 #include <linux/device.h>
35 #include <linux/netdevice.h>
36 #include <linux/etherdevice.h>
37 #include <linux/delay.h>
38 #include <linux/errno.h>
39 #include <linux/list.h>
40 #include <linux/spinlock.h>
41 #include <linux/ethtool.h>
42 #include <linux/rtnetlink.h>
43
44 #include <asm/io.h>
45 #include <asm/irq.h>
46 #include <asm/byteorder.h>
47
48 #include <rdma/iw_cm.h>
49 #include <rdma/ib_verbs.h>
50 #include <rdma/ib_smi.h>
51 #include <rdma/ib_umem.h>
52 #include <rdma/ib_user_verbs.h>
53
54 #include "cxio_hal.h"
55 #include "iwch.h"
56 #include "iwch_provider.h"
57 #include "iwch_cm.h"
58 #include "iwch_user.h"
59
60 static int iwch_modify_port(struct ib_device *ibdev,
61 u8 port, int port_modify_mask,
62 struct ib_port_modify *props)
63 {
64 return -ENOSYS;
65 }
66
67 static struct ib_ah *iwch_ah_create(struct ib_pd *pd,
68 struct ib_ah_attr *ah_attr)
69 {
70 return ERR_PTR(-ENOSYS);
71 }
72
73 static int iwch_ah_destroy(struct ib_ah *ah)
74 {
75 return -ENOSYS;
76 }
77
78 static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
79 {
80 return -ENOSYS;
81 }
82
83 static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
84 {
85 return -ENOSYS;
86 }
87
88 static int iwch_process_mad(struct ib_device *ibdev,
89 int mad_flags,
90 u8 port_num,
91 struct ib_wc *in_wc,
92 struct ib_grh *in_grh,
93 struct ib_mad *in_mad, struct ib_mad *out_mad)
94 {
95 return -ENOSYS;
96 }
97
98 static int iwch_dealloc_ucontext(struct ib_ucontext *context)
99 {
100 struct iwch_dev *rhp = to_iwch_dev(context->device);
101 struct iwch_ucontext *ucontext = to_iwch_ucontext(context);
102 struct iwch_mm_entry *mm, *tmp;
103
104 PDBG("%s context %p\n", __func__, context);
105 list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
106 kfree(mm);
107 cxio_release_ucontext(&rhp->rdev, &ucontext->uctx);
108 kfree(ucontext);
109 return 0;
110 }
111
112 static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev,
113 struct ib_udata *udata)
114 {
115 struct iwch_ucontext *context;
116 struct iwch_dev *rhp = to_iwch_dev(ibdev);
117
118 PDBG("%s ibdev %p\n", __func__, ibdev);
119 context = kzalloc(sizeof(*context), GFP_KERNEL);
120 if (!context)
121 return ERR_PTR(-ENOMEM);
122 cxio_init_ucontext(&rhp->rdev, &context->uctx);
123 INIT_LIST_HEAD(&context->mmaps);
124 spin_lock_init(&context->mmap_lock);
125 return &context->ibucontext;
126 }
127
128 static int iwch_destroy_cq(struct ib_cq *ib_cq)
129 {
130 struct iwch_cq *chp;
131
132 PDBG("%s ib_cq %p\n", __func__, ib_cq);
133 chp = to_iwch_cq(ib_cq);
134
135 remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid);
136 atomic_dec(&chp->refcnt);
137 wait_event(chp->wait, !atomic_read(&chp->refcnt));
138
139 cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
140 kfree(chp);
141 return 0;
142 }
143
144 static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int vector,
145 struct ib_ucontext *ib_context,
146 struct ib_udata *udata)
147 {
148 struct iwch_dev *rhp;
149 struct iwch_cq *chp;
150 struct iwch_create_cq_resp uresp;
151 struct iwch_create_cq_req ureq;
152 struct iwch_ucontext *ucontext = NULL;
153
154 PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries);
155 rhp = to_iwch_dev(ibdev);
156 chp = kzalloc(sizeof(*chp), GFP_KERNEL);
157 if (!chp)
158 return ERR_PTR(-ENOMEM);
159
160 if (ib_context) {
161 ucontext = to_iwch_ucontext(ib_context);
162 if (!t3a_device(rhp)) {
163 if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) {
164 kfree(chp);
165 return ERR_PTR(-EFAULT);
166 }
167 chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr;
168 }
169 }
170
171 if (t3a_device(rhp)) {
172
173 /*
174 * T3A: Add some fluff to handle extra CQEs inserted
175 * for various errors.
176 * Additional CQE possibilities:
177 * TERMINATE,
178 * incoming RDMA WRITE Failures
179 * incoming RDMA READ REQUEST FAILUREs
180 * NOTE: We cannot ensure the CQ won't overflow.
181 */
182 entries += 16;
183 }
184 entries = roundup_pow_of_two(entries);
185 chp->cq.size_log2 = ilog2(entries);
186
187 if (cxio_create_cq(&rhp->rdev, &chp->cq)) {
188 kfree(chp);
189 return ERR_PTR(-ENOMEM);
190 }
191 chp->rhp = rhp;
192 chp->ibcq.cqe = 1 << chp->cq.size_log2;
193 spin_lock_init(&chp->lock);
194 atomic_set(&chp->refcnt, 1);
195 init_waitqueue_head(&chp->wait);
196 insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid);
197
198 if (ucontext) {
199 struct iwch_mm_entry *mm;
200
201 mm = kmalloc(sizeof *mm, GFP_KERNEL);
202 if (!mm) {
203 iwch_destroy_cq(&chp->ibcq);
204 return ERR_PTR(-ENOMEM);
205 }
206 uresp.cqid = chp->cq.cqid;
207 uresp.size_log2 = chp->cq.size_log2;
208 spin_lock(&ucontext->mmap_lock);
209 uresp.key = ucontext->key;
210 ucontext->key += PAGE_SIZE;
211 spin_unlock(&ucontext->mmap_lock);
212 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
213 kfree(mm);
214 iwch_destroy_cq(&chp->ibcq);
215 return ERR_PTR(-EFAULT);
216 }
217 mm->key = uresp.key;
218 mm->addr = virt_to_phys(chp->cq.queue);
219 mm->len = PAGE_ALIGN((1UL << uresp.size_log2) *
220 sizeof (struct t3_cqe));
221 insert_mmap(ucontext, mm);
222 }
223 PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n",
224 chp->cq.cqid, chp, (1 << chp->cq.size_log2),
225 (unsigned long long) chp->cq.dma_addr);
226 return &chp->ibcq;
227 }
228
229 static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
230 {
231 #ifdef notyet
232 struct iwch_cq *chp = to_iwch_cq(cq);
233 struct t3_cq oldcq, newcq;
234 int ret;
235
236 PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe);
237
238 /* We don't downsize... */
239 if (cqe <= cq->cqe)
240 return 0;
241
242 /* create new t3_cq with new size */
243 cqe = roundup_pow_of_two(cqe+1);
244 newcq.size_log2 = ilog2(cqe);
245
246 /* Dont allow resize to less than the current wce count */
247 if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) {
248 return -ENOMEM;
249 }
250
251 /* Quiesce all QPs using this CQ */
252 ret = iwch_quiesce_qps(chp);
253 if (ret) {
254 return ret;
255 }
256
257 ret = cxio_create_cq(&chp->rhp->rdev, &newcq);
258 if (ret) {
259 return ret;
260 }
261
262 /* copy CQEs */
263 memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) *
264 sizeof(struct t3_cqe));
265
266 /* old iwch_qp gets new t3_cq but keeps old cqid */
267 oldcq = chp->cq;
268 chp->cq = newcq;
269 chp->cq.cqid = oldcq.cqid;
270
271 /* resize new t3_cq to update the HW context */
272 ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq);
273 if (ret) {
274 chp->cq = oldcq;
275 return ret;
276 }
277 chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1;
278
279 /* destroy old t3_cq */
280 oldcq.cqid = newcq.cqid;
281 ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq);
282 if (ret) {
283 printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n",
284 __func__, ret);
285 }
286
287 /* add user hooks here */
288
289 /* resume qps */
290 ret = iwch_resume_qps(chp);
291 return ret;
292 #else
293 return -ENOSYS;
294 #endif
295 }
296
297 static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
298 {
299 struct iwch_dev *rhp;
300 struct iwch_cq *chp;
301 enum t3_cq_opcode cq_op;
302 int err;
303 unsigned long flag;
304 u32 rptr;
305
306 chp = to_iwch_cq(ibcq);
307 rhp = chp->rhp;
308 if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED)
309 cq_op = CQ_ARM_SE;
310 else
311 cq_op = CQ_ARM_AN;
312 if (chp->user_rptr_addr) {
313 if (get_user(rptr, chp->user_rptr_addr))
314 return -EFAULT;
315 spin_lock_irqsave(&chp->lock, flag);
316 chp->cq.rptr = rptr;
317 } else
318 spin_lock_irqsave(&chp->lock, flag);
319 PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr);
320 err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0);
321 spin_unlock_irqrestore(&chp->lock, flag);
322 if (err < 0)
323 printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err,
324 chp->cq.cqid);
325 if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS))
326 err = 0;
327 return err;
328 }
329
330 static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
331 {
332 int len = vma->vm_end - vma->vm_start;
333 u32 key = vma->vm_pgoff << PAGE_SHIFT;
334 struct cxio_rdev *rdev_p;
335 int ret = 0;
336 struct iwch_mm_entry *mm;
337 struct iwch_ucontext *ucontext;
338 u64 addr;
339
340 PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
341 key, len);
342
343 if (vma->vm_start & (PAGE_SIZE-1)) {
344 return -EINVAL;
345 }
346
347 rdev_p = &(to_iwch_dev(context->device)->rdev);
348 ucontext = to_iwch_ucontext(context);
349
350 mm = remove_mmap(ucontext, key, len);
351 if (!mm)
352 return -EINVAL;
353 addr = mm->addr;
354 kfree(mm);
355
356 if ((addr >= rdev_p->rnic_info.udbell_physbase) &&
357 (addr < (rdev_p->rnic_info.udbell_physbase +
358 rdev_p->rnic_info.udbell_len))) {
359
360 /*
361 * Map T3 DB register.
362 */
363 if (vma->vm_flags & VM_READ) {
364 return -EPERM;
365 }
366
367 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
368 vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND;
369 vma->vm_flags &= ~VM_MAYREAD;
370 ret = io_remap_pfn_range(vma, vma->vm_start,
371 addr >> PAGE_SHIFT,
372 len, vma->vm_page_prot);
373 } else {
374
375 /*
376 * Map WQ or CQ contig dma memory...
377 */
378 ret = remap_pfn_range(vma, vma->vm_start,
379 addr >> PAGE_SHIFT,
380 len, vma->vm_page_prot);
381 }
382
383 return ret;
384 }
385
386 static int iwch_deallocate_pd(struct ib_pd *pd)
387 {
388 struct iwch_dev *rhp;
389 struct iwch_pd *php;
390
391 php = to_iwch_pd(pd);
392 rhp = php->rhp;
393 PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
394 cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid);
395 kfree(php);
396 return 0;
397 }
398
399 static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev,
400 struct ib_ucontext *context,
401 struct ib_udata *udata)
402 {
403 struct iwch_pd *php;
404 u32 pdid;
405 struct iwch_dev *rhp;
406
407 PDBG("%s ibdev %p\n", __func__, ibdev);
408 rhp = (struct iwch_dev *) ibdev;
409 pdid = cxio_hal_get_pdid(rhp->rdev.rscp);
410 if (!pdid)
411 return ERR_PTR(-EINVAL);
412 php = kzalloc(sizeof(*php), GFP_KERNEL);
413 if (!php) {
414 cxio_hal_put_pdid(rhp->rdev.rscp, pdid);
415 return ERR_PTR(-ENOMEM);
416 }
417 php->pdid = pdid;
418 php->rhp = rhp;
419 if (context) {
420 if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) {
421 iwch_deallocate_pd(&php->ibpd);
422 return ERR_PTR(-EFAULT);
423 }
424 }
425 PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
426 return &php->ibpd;
427 }
428
429 static int iwch_dereg_mr(struct ib_mr *ib_mr)
430 {
431 struct iwch_dev *rhp;
432 struct iwch_mr *mhp;
433 u32 mmid;
434
435 PDBG("%s ib_mr %p\n", __func__, ib_mr);
436 /* There can be no memory windows */
437 if (atomic_read(&ib_mr->usecnt))
438 return -EINVAL;
439
440 mhp = to_iwch_mr(ib_mr);
441 rhp = mhp->rhp;
442 mmid = mhp->attr.stag >> 8;
443 cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
444 mhp->attr.pbl_addr);
445 iwch_free_pbl(mhp);
446 remove_handle(rhp, &rhp->mmidr, mmid);
447 if (mhp->kva)
448 kfree((void *) (unsigned long) mhp->kva);
449 if (mhp->umem)
450 ib_umem_release(mhp->umem);
451 PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp);
452 kfree(mhp);
453 return 0;
454 }
455
456 static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd,
457 struct ib_phys_buf *buffer_list,
458 int num_phys_buf,
459 int acc,
460 u64 *iova_start)
461 {
462 __be64 *page_list;
463 int shift;
464 u64 total_size;
465 int npages;
466 struct iwch_dev *rhp;
467 struct iwch_pd *php;
468 struct iwch_mr *mhp;
469 int ret;
470
471 PDBG("%s ib_pd %p\n", __func__, pd);
472 php = to_iwch_pd(pd);
473 rhp = php->rhp;
474
475 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
476 if (!mhp)
477 return ERR_PTR(-ENOMEM);
478
479 mhp->rhp = rhp;
480
481 /* First check that we have enough alignment */
482 if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) {
483 ret = -EINVAL;
484 goto err;
485 }
486
487 if (num_phys_buf > 1 &&
488 ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) {
489 ret = -EINVAL;
490 goto err;
491 }
492
493 ret = build_phys_page_list(buffer_list, num_phys_buf, iova_start,
494 &total_size, &npages, &shift, &page_list);
495 if (ret)
496 goto err;
497
498 ret = iwch_alloc_pbl(mhp, npages);
499 if (ret) {
500 kfree(page_list);
501 goto err_pbl;
502 }
503
504 ret = iwch_write_pbl(mhp, page_list, npages, 0);
505 kfree(page_list);
506 if (ret)
507 goto err_pbl;
508
509 mhp->attr.pdid = php->pdid;
510 mhp->attr.zbva = 0;
511
512 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
513 mhp->attr.va_fbo = *iova_start;
514 mhp->attr.page_size = shift - 12;
515
516 mhp->attr.len = (u32) total_size;
517 mhp->attr.pbl_size = npages;
518 ret = iwch_register_mem(rhp, php, mhp, shift);
519 if (ret)
520 goto err_pbl;
521
522 return &mhp->ibmr;
523
524 err_pbl:
525 iwch_free_pbl(mhp);
526
527 err:
528 kfree(mhp);
529 return ERR_PTR(ret);
530
531 }
532
533 static int iwch_reregister_phys_mem(struct ib_mr *mr,
534 int mr_rereg_mask,
535 struct ib_pd *pd,
536 struct ib_phys_buf *buffer_list,
537 int num_phys_buf,
538 int acc, u64 * iova_start)
539 {
540
541 struct iwch_mr mh, *mhp;
542 struct iwch_pd *php;
543 struct iwch_dev *rhp;
544 __be64 *page_list = NULL;
545 int shift = 0;
546 u64 total_size;
547 int npages;
548 int ret;
549
550 PDBG("%s ib_mr %p ib_pd %p\n", __func__, mr, pd);
551
552 /* There can be no memory windows */
553 if (atomic_read(&mr->usecnt))
554 return -EINVAL;
555
556 mhp = to_iwch_mr(mr);
557 rhp = mhp->rhp;
558 php = to_iwch_pd(mr->pd);
559
560 /* make sure we are on the same adapter */
561 if (rhp != php->rhp)
562 return -EINVAL;
563
564 memcpy(&mh, mhp, sizeof *mhp);
565
566 if (mr_rereg_mask & IB_MR_REREG_PD)
567 php = to_iwch_pd(pd);
568 if (mr_rereg_mask & IB_MR_REREG_ACCESS)
569 mh.attr.perms = iwch_ib_to_tpt_access(acc);
570 if (mr_rereg_mask & IB_MR_REREG_TRANS) {
571 ret = build_phys_page_list(buffer_list, num_phys_buf,
572 iova_start,
573 &total_size, &npages,
574 &shift, &page_list);
575 if (ret)
576 return ret;
577 }
578
579 ret = iwch_reregister_mem(rhp, php, &mh, shift, npages);
580 kfree(page_list);
581 if (ret) {
582 return ret;
583 }
584 if (mr_rereg_mask & IB_MR_REREG_PD)
585 mhp->attr.pdid = php->pdid;
586 if (mr_rereg_mask & IB_MR_REREG_ACCESS)
587 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
588 if (mr_rereg_mask & IB_MR_REREG_TRANS) {
589 mhp->attr.zbva = 0;
590 mhp->attr.va_fbo = *iova_start;
591 mhp->attr.page_size = shift - 12;
592 mhp->attr.len = (u32) total_size;
593 mhp->attr.pbl_size = npages;
594 }
595
596 return 0;
597 }
598
599
600 static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
601 u64 virt, int acc, struct ib_udata *udata)
602 {
603 __be64 *pages;
604 int shift, n, len;
605 int i, j, k;
606 int err = 0;
607 struct ib_umem_chunk *chunk;
608 struct iwch_dev *rhp;
609 struct iwch_pd *php;
610 struct iwch_mr *mhp;
611 struct iwch_reg_user_mr_resp uresp;
612
613 PDBG("%s ib_pd %p\n", __func__, pd);
614
615 php = to_iwch_pd(pd);
616 rhp = php->rhp;
617 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
618 if (!mhp)
619 return ERR_PTR(-ENOMEM);
620
621 mhp->rhp = rhp;
622
623 mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0);
624 if (IS_ERR(mhp->umem)) {
625 err = PTR_ERR(mhp->umem);
626 kfree(mhp);
627 return ERR_PTR(err);
628 }
629
630 shift = ffs(mhp->umem->page_size) - 1;
631
632 n = 0;
633 list_for_each_entry(chunk, &mhp->umem->chunk_list, list)
634 n += chunk->nents;
635
636 err = iwch_alloc_pbl(mhp, n);
637 if (err)
638 goto err;
639
640 pages = (__be64 *) __get_free_page(GFP_KERNEL);
641 if (!pages) {
642 err = -ENOMEM;
643 goto err_pbl;
644 }
645
646 i = n = 0;
647
648 list_for_each_entry(chunk, &mhp->umem->chunk_list, list)
649 for (j = 0; j < chunk->nmap; ++j) {
650 len = sg_dma_len(&chunk->page_list[j]) >> shift;
651 for (k = 0; k < len; ++k) {
652 pages[i++] = cpu_to_be64(sg_dma_address(
653 &chunk->page_list[j]) +
654 mhp->umem->page_size * k);
655 if (i == PAGE_SIZE / sizeof *pages) {
656 err = iwch_write_pbl(mhp, pages, i, n);
657 if (err)
658 goto pbl_done;
659 n += i;
660 i = 0;
661 }
662 }
663 }
664
665 if (i)
666 err = iwch_write_pbl(mhp, pages, i, n);
667
668 pbl_done:
669 free_page((unsigned long) pages);
670 if (err)
671 goto err_pbl;
672
673 mhp->attr.pdid = php->pdid;
674 mhp->attr.zbva = 0;
675 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
676 mhp->attr.va_fbo = virt;
677 mhp->attr.page_size = shift - 12;
678 mhp->attr.len = (u32) length;
679
680 err = iwch_register_mem(rhp, php, mhp, shift);
681 if (err)
682 goto err_pbl;
683
684 if (udata && !t3a_device(rhp)) {
685 uresp.pbl_addr = (mhp->attr.pbl_addr -
686 rhp->rdev.rnic_info.pbl_base) >> 3;
687 PDBG("%s user resp pbl_addr 0x%x\n", __func__,
688 uresp.pbl_addr);
689
690 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
691 iwch_dereg_mr(&mhp->ibmr);
692 err = -EFAULT;
693 goto err;
694 }
695 }
696
697 return &mhp->ibmr;
698
699 err_pbl:
700 iwch_free_pbl(mhp);
701
702 err:
703 ib_umem_release(mhp->umem);
704 kfree(mhp);
705 return ERR_PTR(err);
706 }
707
708 static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc)
709 {
710 struct ib_phys_buf bl;
711 u64 kva;
712 struct ib_mr *ibmr;
713
714 PDBG("%s ib_pd %p\n", __func__, pd);
715
716 /*
717 * T3 only supports 32 bits of size.
718 */
719 bl.size = 0xffffffff;
720 bl.addr = 0;
721 kva = 0;
722 ibmr = iwch_register_phys_mem(pd, &bl, 1, acc, &kva);
723 return ibmr;
724 }
725
726 static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
727 {
728 struct iwch_dev *rhp;
729 struct iwch_pd *php;
730 struct iwch_mw *mhp;
731 u32 mmid;
732 u32 stag = 0;
733 int ret;
734
735 php = to_iwch_pd(pd);
736 rhp = php->rhp;
737 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
738 if (!mhp)
739 return ERR_PTR(-ENOMEM);
740 ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid);
741 if (ret) {
742 kfree(mhp);
743 return ERR_PTR(ret);
744 }
745 mhp->rhp = rhp;
746 mhp->attr.pdid = php->pdid;
747 mhp->attr.type = TPT_MW;
748 mhp->attr.stag = stag;
749 mmid = (stag) >> 8;
750 insert_handle(rhp, &rhp->mmidr, mhp, mmid);
751 PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
752 return &(mhp->ibmw);
753 }
754
755 static int iwch_dealloc_mw(struct ib_mw *mw)
756 {
757 struct iwch_dev *rhp;
758 struct iwch_mw *mhp;
759 u32 mmid;
760
761 mhp = to_iwch_mw(mw);
762 rhp = mhp->rhp;
763 mmid = (mw->rkey) >> 8;
764 cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
765 remove_handle(rhp, &rhp->mmidr, mmid);
766 kfree(mhp);
767 PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp);
768 return 0;
769 }
770
771 static int iwch_destroy_qp(struct ib_qp *ib_qp)
772 {
773 struct iwch_dev *rhp;
774 struct iwch_qp *qhp;
775 struct iwch_qp_attributes attrs;
776 struct iwch_ucontext *ucontext;
777
778 qhp = to_iwch_qp(ib_qp);
779 rhp = qhp->rhp;
780
781 attrs.next_state = IWCH_QP_STATE_ERROR;
782 iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0);
783 wait_event(qhp->wait, !qhp->ep);
784
785 remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid);
786
787 atomic_dec(&qhp->refcnt);
788 wait_event(qhp->wait, !atomic_read(&qhp->refcnt));
789
790 ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context)
791 : NULL;
792 cxio_destroy_qp(&rhp->rdev, &qhp->wq,
793 ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
794
795 PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__,
796 ib_qp, qhp->wq.qpid, qhp);
797 kfree(qhp);
798 return 0;
799 }
800
801 static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
802 struct ib_qp_init_attr *attrs,
803 struct ib_udata *udata)
804 {
805 struct iwch_dev *rhp;
806 struct iwch_qp *qhp;
807 struct iwch_pd *php;
808 struct iwch_cq *schp;
809 struct iwch_cq *rchp;
810 struct iwch_create_qp_resp uresp;
811 int wqsize, sqsize, rqsize;
812 struct iwch_ucontext *ucontext;
813
814 PDBG("%s ib_pd %p\n", __func__, pd);
815 if (attrs->qp_type != IB_QPT_RC)
816 return ERR_PTR(-EINVAL);
817 php = to_iwch_pd(pd);
818 rhp = php->rhp;
819 schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid);
820 rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid);
821 if (!schp || !rchp)
822 return ERR_PTR(-EINVAL);
823
824 /* The RQT size must be # of entries + 1 rounded up to a power of two */
825 rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr);
826 if (rqsize == attrs->cap.max_recv_wr)
827 rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1);
828
829 /* T3 doesn't support RQT depth < 16 */
830 if (rqsize < 16)
831 rqsize = 16;
832
833 if (rqsize > T3_MAX_RQ_SIZE)
834 return ERR_PTR(-EINVAL);
835
836 if (attrs->cap.max_inline_data > T3_MAX_INLINE)
837 return ERR_PTR(-EINVAL);
838
839 /*
840 * NOTE: The SQ and total WQ sizes don't need to be
841 * a power of two. However, all the code assumes
842 * they are. EG: Q_FREECNT() and friends.
843 */
844 sqsize = roundup_pow_of_two(attrs->cap.max_send_wr);
845 wqsize = roundup_pow_of_two(rqsize + sqsize);
846 PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__,
847 wqsize, sqsize, rqsize);
848 qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
849 if (!qhp)
850 return ERR_PTR(-ENOMEM);
851 qhp->wq.size_log2 = ilog2(wqsize);
852 qhp->wq.rq_size_log2 = ilog2(rqsize);
853 qhp->wq.sq_size_log2 = ilog2(sqsize);
854 ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
855 if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq,
856 ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) {
857 kfree(qhp);
858 return ERR_PTR(-ENOMEM);
859 }
860
861 attrs->cap.max_recv_wr = rqsize - 1;
862 attrs->cap.max_send_wr = sqsize;
863 attrs->cap.max_inline_data = T3_MAX_INLINE;
864
865 qhp->rhp = rhp;
866 qhp->attr.pd = php->pdid;
867 qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid;
868 qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid;
869 qhp->attr.sq_num_entries = attrs->cap.max_send_wr;
870 qhp->attr.rq_num_entries = attrs->cap.max_recv_wr;
871 qhp->attr.sq_max_sges = attrs->cap.max_send_sge;
872 qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge;
873 qhp->attr.rq_max_sges = attrs->cap.max_recv_sge;
874 qhp->attr.state = IWCH_QP_STATE_IDLE;
875 qhp->attr.next_state = IWCH_QP_STATE_IDLE;
876
877 /*
878 * XXX - These don't get passed in from the openib user
879 * at create time. The CM sets them via a QP modify.
880 * Need to fix... I think the CM should
881 */
882 qhp->attr.enable_rdma_read = 1;
883 qhp->attr.enable_rdma_write = 1;
884 qhp->attr.enable_bind = 1;
885 qhp->attr.max_ord = 1;
886 qhp->attr.max_ird = 1;
887
888 spin_lock_init(&qhp->lock);
889 init_waitqueue_head(&qhp->wait);
890 atomic_set(&qhp->refcnt, 1);
891 insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid);
892
893 if (udata) {
894
895 struct iwch_mm_entry *mm1, *mm2;
896
897 mm1 = kmalloc(sizeof *mm1, GFP_KERNEL);
898 if (!mm1) {
899 iwch_destroy_qp(&qhp->ibqp);
900 return ERR_PTR(-ENOMEM);
901 }
902
903 mm2 = kmalloc(sizeof *mm2, GFP_KERNEL);
904 if (!mm2) {
905 kfree(mm1);
906 iwch_destroy_qp(&qhp->ibqp);
907 return ERR_PTR(-ENOMEM);
908 }
909
910 uresp.qpid = qhp->wq.qpid;
911 uresp.size_log2 = qhp->wq.size_log2;
912 uresp.sq_size_log2 = qhp->wq.sq_size_log2;
913 uresp.rq_size_log2 = qhp->wq.rq_size_log2;
914 spin_lock(&ucontext->mmap_lock);
915 uresp.key = ucontext->key;
916 ucontext->key += PAGE_SIZE;
917 uresp.db_key = ucontext->key;
918 ucontext->key += PAGE_SIZE;
919 spin_unlock(&ucontext->mmap_lock);
920 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
921 kfree(mm1);
922 kfree(mm2);
923 iwch_destroy_qp(&qhp->ibqp);
924 return ERR_PTR(-EFAULT);
925 }
926 mm1->key = uresp.key;
927 mm1->addr = virt_to_phys(qhp->wq.queue);
928 mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr));
929 insert_mmap(ucontext, mm1);
930 mm2->key = uresp.db_key;
931 mm2->addr = qhp->wq.udb & PAGE_MASK;
932 mm2->len = PAGE_SIZE;
933 insert_mmap(ucontext, mm2);
934 }
935 qhp->ibqp.qp_num = qhp->wq.qpid;
936 init_timer(&(qhp->timer));
937 PDBG("%s sq_num_entries %d, rq_num_entries %d "
938 "qpid 0x%0x qhp %p dma_addr 0x%llx size %d\n",
939 __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
940 qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr,
941 1 << qhp->wq.size_log2);
942 return &qhp->ibqp;
943 }
944
945 static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
946 int attr_mask, struct ib_udata *udata)
947 {
948 struct iwch_dev *rhp;
949 struct iwch_qp *qhp;
950 enum iwch_qp_attr_mask mask = 0;
951 struct iwch_qp_attributes attrs;
952
953 PDBG("%s ib_qp %p\n", __func__, ibqp);
954
955 /* iwarp does not support the RTR state */
956 if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR))
957 attr_mask &= ~IB_QP_STATE;
958
959 /* Make sure we still have something left to do */
960 if (!attr_mask)
961 return 0;
962
963 memset(&attrs, 0, sizeof attrs);
964 qhp = to_iwch_qp(ibqp);
965 rhp = qhp->rhp;
966
967 attrs.next_state = iwch_convert_state(attr->qp_state);
968 attrs.enable_rdma_read = (attr->qp_access_flags &
969 IB_ACCESS_REMOTE_READ) ? 1 : 0;
970 attrs.enable_rdma_write = (attr->qp_access_flags &
971 IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
972 attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0;
973
974
975 mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0;
976 mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ?
977 (IWCH_QP_ATTR_ENABLE_RDMA_READ |
978 IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
979 IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0;
980
981 return iwch_modify_qp(rhp, qhp, mask, &attrs, 0);
982 }
983
984 void iwch_qp_add_ref(struct ib_qp *qp)
985 {
986 PDBG("%s ib_qp %p\n", __func__, qp);
987 atomic_inc(&(to_iwch_qp(qp)->refcnt));
988 }
989
990 void iwch_qp_rem_ref(struct ib_qp *qp)
991 {
992 PDBG("%s ib_qp %p\n", __func__, qp);
993 if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt)))
994 wake_up(&(to_iwch_qp(qp)->wait));
995 }
996
997 static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn)
998 {
999 PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn);
1000 return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn);
1001 }
1002
1003
1004 static int iwch_query_pkey(struct ib_device *ibdev,
1005 u8 port, u16 index, u16 * pkey)
1006 {
1007 PDBG("%s ibdev %p\n", __func__, ibdev);
1008 *pkey = 0;
1009 return 0;
1010 }
1011
1012 static int iwch_query_gid(struct ib_device *ibdev, u8 port,
1013 int index, union ib_gid *gid)
1014 {
1015 struct iwch_dev *dev;
1016
1017 PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
1018 __func__, ibdev, port, index, gid);
1019 dev = to_iwch_dev(ibdev);
1020 BUG_ON(port == 0 || port > 2);
1021 memset(&(gid->raw[0]), 0, sizeof(gid->raw));
1022 memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6);
1023 return 0;
1024 }
1025
1026 static int iwch_query_device(struct ib_device *ibdev,
1027 struct ib_device_attr *props)
1028 {
1029
1030 struct iwch_dev *dev;
1031 PDBG("%s ibdev %p\n", __func__, ibdev);
1032
1033 dev = to_iwch_dev(ibdev);
1034 memset(props, 0, sizeof *props);
1035 memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
1036 props->device_cap_flags = dev->device_cap_flags;
1037 props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
1038 props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
1039 props->max_mr_size = dev->attr.max_mr_size;
1040 props->max_qp = dev->attr.max_qps;
1041 props->max_qp_wr = dev->attr.max_wrs;
1042 props->max_sge = dev->attr.max_sge_per_wr;
1043 props->max_sge_rd = 1;
1044 props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp;
1045 props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp;
1046 props->max_cq = dev->attr.max_cqs;
1047 props->max_cqe = dev->attr.max_cqes_per_cq;
1048 props->max_mr = dev->attr.max_mem_regs;
1049 props->max_pd = dev->attr.max_pds;
1050 props->local_ca_ack_delay = 0;
1051
1052 return 0;
1053 }
1054
1055 static int iwch_query_port(struct ib_device *ibdev,
1056 u8 port, struct ib_port_attr *props)
1057 {
1058 PDBG("%s ibdev %p\n", __func__, ibdev);
1059 props->max_mtu = IB_MTU_4096;
1060 props->lid = 0;
1061 props->lmc = 0;
1062 props->sm_lid = 0;
1063 props->sm_sl = 0;
1064 props->state = IB_PORT_ACTIVE;
1065 props->phys_state = 0;
1066 props->port_cap_flags =
1067 IB_PORT_CM_SUP |
1068 IB_PORT_SNMP_TUNNEL_SUP |
1069 IB_PORT_REINIT_SUP |
1070 IB_PORT_DEVICE_MGMT_SUP |
1071 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
1072 props->gid_tbl_len = 1;
1073 props->pkey_tbl_len = 1;
1074 props->qkey_viol_cntr = 0;
1075 props->active_width = 2;
1076 props->active_speed = 2;
1077 props->max_msg_sz = -1;
1078
1079 return 0;
1080 }
1081
1082 static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
1083 char *buf)
1084 {
1085 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1086 ibdev.dev);
1087 PDBG("%s dev 0x%p\n", __func__, dev);
1088 return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type);
1089 }
1090
1091 static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, char *buf)
1092 {
1093 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1094 ibdev.dev);
1095 struct ethtool_drvinfo info;
1096 struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
1097
1098 PDBG("%s dev 0x%p\n", __func__, dev);
1099 lldev->ethtool_ops->get_drvinfo(lldev, &info);
1100 return sprintf(buf, "%s\n", info.fw_version);
1101 }
1102
1103 static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
1104 char *buf)
1105 {
1106 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1107 ibdev.dev);
1108 struct ethtool_drvinfo info;
1109 struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
1110
1111 PDBG("%s dev 0x%p\n", __func__, dev);
1112 lldev->ethtool_ops->get_drvinfo(lldev, &info);
1113 return sprintf(buf, "%s\n", info.driver);
1114 }
1115
1116 static ssize_t show_board(struct device *dev, struct device_attribute *attr,
1117 char *buf)
1118 {
1119 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1120 ibdev.dev);
1121 PDBG("%s dev 0x%p\n", __func__, dev);
1122 return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor,
1123 iwch_dev->rdev.rnic_info.pdev->device);
1124 }
1125
1126 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
1127 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
1128 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
1129 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
1130
1131 static struct device_attribute *iwch_class_attributes[] = {
1132 &dev_attr_hw_rev,
1133 &dev_attr_fw_ver,
1134 &dev_attr_hca_type,
1135 &dev_attr_board_id
1136 };
1137
1138 int iwch_register_device(struct iwch_dev *dev)
1139 {
1140 int ret;
1141 int i;
1142
1143 PDBG("%s iwch_dev %p\n", __func__, dev);
1144 strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX);
1145 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
1146 memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
1147 dev->ibdev.owner = THIS_MODULE;
1148 dev->device_cap_flags =
1149 (IB_DEVICE_ZERO_STAG | IB_DEVICE_MEM_WINDOW);
1150
1151 dev->ibdev.uverbs_cmd_mask =
1152 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1153 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1154 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1155 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1156 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1157 (1ull << IB_USER_VERBS_CMD_REG_MR) |
1158 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1159 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1160 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
1161 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1162 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
1163 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1164 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
1165 (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
1166 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1167 (1ull << IB_USER_VERBS_CMD_POST_SEND) |
1168 (1ull << IB_USER_VERBS_CMD_POST_RECV);
1169 dev->ibdev.node_type = RDMA_NODE_RNIC;
1170 memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC));
1171 dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports;
1172 dev->ibdev.num_comp_vectors = 1;
1173 dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
1174 dev->ibdev.query_device = iwch_query_device;
1175 dev->ibdev.query_port = iwch_query_port;
1176 dev->ibdev.modify_port = iwch_modify_port;
1177 dev->ibdev.query_pkey = iwch_query_pkey;
1178 dev->ibdev.query_gid = iwch_query_gid;
1179 dev->ibdev.alloc_ucontext = iwch_alloc_ucontext;
1180 dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext;
1181 dev->ibdev.mmap = iwch_mmap;
1182 dev->ibdev.alloc_pd = iwch_allocate_pd;
1183 dev->ibdev.dealloc_pd = iwch_deallocate_pd;
1184 dev->ibdev.create_ah = iwch_ah_create;
1185 dev->ibdev.destroy_ah = iwch_ah_destroy;
1186 dev->ibdev.create_qp = iwch_create_qp;
1187 dev->ibdev.modify_qp = iwch_ib_modify_qp;
1188 dev->ibdev.destroy_qp = iwch_destroy_qp;
1189 dev->ibdev.create_cq = iwch_create_cq;
1190 dev->ibdev.destroy_cq = iwch_destroy_cq;
1191 dev->ibdev.resize_cq = iwch_resize_cq;
1192 dev->ibdev.poll_cq = iwch_poll_cq;
1193 dev->ibdev.get_dma_mr = iwch_get_dma_mr;
1194 dev->ibdev.reg_phys_mr = iwch_register_phys_mem;
1195 dev->ibdev.rereg_phys_mr = iwch_reregister_phys_mem;
1196 dev->ibdev.reg_user_mr = iwch_reg_user_mr;
1197 dev->ibdev.dereg_mr = iwch_dereg_mr;
1198 dev->ibdev.alloc_mw = iwch_alloc_mw;
1199 dev->ibdev.bind_mw = iwch_bind_mw;
1200 dev->ibdev.dealloc_mw = iwch_dealloc_mw;
1201
1202 dev->ibdev.attach_mcast = iwch_multicast_attach;
1203 dev->ibdev.detach_mcast = iwch_multicast_detach;
1204 dev->ibdev.process_mad = iwch_process_mad;
1205
1206 dev->ibdev.req_notify_cq = iwch_arm_cq;
1207 dev->ibdev.post_send = iwch_post_send;
1208 dev->ibdev.post_recv = iwch_post_receive;
1209
1210
1211 dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
1212 if (!dev->ibdev.iwcm)
1213 return -ENOMEM;
1214
1215 dev->ibdev.iwcm->connect = iwch_connect;
1216 dev->ibdev.iwcm->accept = iwch_accept_cr;
1217 dev->ibdev.iwcm->reject = iwch_reject_cr;
1218 dev->ibdev.iwcm->create_listen = iwch_create_listen;
1219 dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen;
1220 dev->ibdev.iwcm->add_ref = iwch_qp_add_ref;
1221 dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref;
1222 dev->ibdev.iwcm->get_qp = iwch_get_qp;
1223
1224 ret = ib_register_device(&dev->ibdev);
1225 if (ret)
1226 goto bail1;
1227
1228 for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) {
1229 ret = device_create_file(&dev->ibdev.dev,
1230 iwch_class_attributes[i]);
1231 if (ret) {
1232 goto bail2;
1233 }
1234 }
1235 return 0;
1236 bail2:
1237 ib_unregister_device(&dev->ibdev);
1238 bail1:
1239 return ret;
1240 }
1241
1242 void iwch_unregister_device(struct iwch_dev *dev)
1243 {
1244 int i;
1245
1246 PDBG("%s iwch_dev %p\n", __func__, dev);
1247 for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i)
1248 device_remove_file(&dev->ibdev.dev,
1249 iwch_class_attributes[i]);
1250 ib_unregister_device(&dev->ibdev);
1251 return;
1252 }
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