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RDMA/cxgb3: Don't add PBL memory to gen_pool in chunks
[deliverable/linux.git] / drivers / infiniband / hw / cxgb3 / iwch_provider.c
CommitLineData
b038ced7
SW		 1/*
2 * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
b038ced7
SW		 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>
7f049f2f 42#include <linux/rtnetlink.h>
b038ced7
SW		 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>
f7c6a7b5 51#include <rdma/ib_umem.h>
b038ced7
SW		 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
60static 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
67static 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
73static int iwch_ah_destroy(struct ib_ah *ah)
74{
75 return -ENOSYS;
76}
77
78static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
79{
80 return -ENOSYS;
81}
82
83static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
84{
85 return -ENOSYS;
86}
87
88static 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
98static 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
33718363 104 PDBG("%s context %p\n", __func__, context);
b038ced7
SW		 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
112static 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
33718363 118 PDBG("%s ibdev %p\n", __func__, ibdev);
b038ced7
SW		 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
128static int iwch_destroy_cq(struct ib_cq *ib_cq)
129{
130 struct iwch_cq *chp;
131
33718363 132 PDBG("%s ib_cq %p\n", __func__, ib_cq);
b038ced7
SW		 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
f4fd0b22 144static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int vector,
b038ced7
SW		 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
33718363 154 PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries);
b038ced7
SW		 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;
4fa45725 192 chp->ibcq.cqe = 1 << chp->cq.size_log2;
b038ced7
SW		 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
229static 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
33718363 236 PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe);
b038ced7
SW		 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",
33718363 284 __func__, ret);
b038ced7
SW		 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
ed23a727 297static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
b038ced7
SW		 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;
ed23a727 308 if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED)
b038ced7
SW		 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);
33718363 319 PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr);
b038ced7
SW		 320 err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0);
321 spin_unlock_irqrestore(&chp->lock, flag);
ed23a727 322 if (err < 0)
b038ced7
SW		 323 printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err,
324 chp->cq.cqid);
ed23a727
RD		 325 if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS))
326 err = 0;
b038ced7
SW		 327 return err;
328}
329
330static 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;
aeb100e2 338 u64 addr;
b038ced7 339
33718363 340 PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
b038ced7
SW		 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;
aeb100e2 353 addr = mm->addr;
b038ced7
SW		 354 kfree(mm);
355
aeb100e2
SW		 356 if ((addr >= rdev_p->rnic_info.udbell_physbase) &&
357 (addr < (rdev_p->rnic_info.udbell_physbase +
b038ced7
SW		 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,
aeb100e2 371 addr >> PAGE_SHIFT,
b038ced7
SW		 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,
aeb100e2 379 addr >> PAGE_SHIFT,
b038ced7
SW		 380 len, vma->vm_page_prot);
381 }
382
383 return ret;
384}
385
386static 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;
33718363 393 PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
b038ced7
SW		 394 cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid);
395 kfree(php);
396 return 0;
397}
398
399static 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
33718363 407 PDBG("%s ibdev %p\n", __func__, ibdev);
b038ced7
SW		 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 }
33718363 425 PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
b038ced7
SW		 426 return &php->ibpd;
427}
428
429static int iwch_dereg_mr(struct ib_mr *ib_mr)
430{
431 struct iwch_dev *rhp;
432 struct iwch_mr *mhp;
433 u32 mmid;
434
33718363 435 PDBG("%s ib_mr %p\n", __func__, ib_mr);
b038ced7
SW		 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 remove_handle(rhp, &rhp->mmidr, mmid);
446 if (mhp->kva)
447 kfree((void *) (unsigned long) mhp->kva);
f7c6a7b5
RD		 448 if (mhp->umem)
449 ib_umem_release(mhp->umem);
33718363 450 PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp);
b038ced7
SW		 451 kfree(mhp);
452 return 0;
453}
454
455static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd,
456 struct ib_phys_buf *buffer_list,
457 int num_phys_buf,
458 int acc,
459 u64 *iova_start)
460{
461 __be64 *page_list;
462 int shift;
463 u64 total_size;
464 int npages;
465 struct iwch_dev *rhp;
466 struct iwch_pd *php;
467 struct iwch_mr *mhp;
468 int ret;
469
33718363 470 PDBG("%s ib_pd %p\n", __func__, pd);
b038ced7
SW		 471 php = to_iwch_pd(pd);
472 rhp = php->rhp;
473
b038ced7
SW		 474 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
475 if (!mhp)
476 return ERR_PTR(-ENOMEM);
477
478 /* First check that we have enough alignment */
479 if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) {
480 ret = -EINVAL;
481 goto err;
482 }
483
484 if (num_phys_buf > 1 &&
485 ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) {
486 ret = -EINVAL;
487 goto err;
488 }
489
490 ret = build_phys_page_list(buffer_list, num_phys_buf, iova_start,
491 &total_size, &npages, &shift, &page_list);
492 if (ret)
493 goto err;
494
495 mhp->rhp = rhp;
496 mhp->attr.pdid = php->pdid;
497 mhp->attr.zbva = 0;
498
e64518f3 499 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
b038ced7
SW		 500 mhp->attr.va_fbo = *iova_start;
501 mhp->attr.page_size = shift - 12;
502
503 mhp->attr.len = (u32) total_size;
504 mhp->attr.pbl_size = npages;
505 ret = iwch_register_mem(rhp, php, mhp, shift, page_list);
506 kfree(page_list);
507 if (ret) {
508 goto err;
509 }
510 return &mhp->ibmr;
511err:
512 kfree(mhp);
513 return ERR_PTR(ret);
514
515}
516
517static int iwch_reregister_phys_mem(struct ib_mr *mr,
518 int mr_rereg_mask,
519 struct ib_pd *pd,
520 struct ib_phys_buf *buffer_list,
521 int num_phys_buf,
522 int acc, u64 * iova_start)
523{
524
525 struct iwch_mr mh, *mhp;
526 struct iwch_pd *php;
527 struct iwch_dev *rhp;
b038ced7
SW		 528 __be64 *page_list = NULL;
529 int shift = 0;
530 u64 total_size;
531 int npages;
532 int ret;
533
33718363 534 PDBG("%s ib_mr %p ib_pd %p\n", __func__, mr, pd);
b038ced7
SW		 535
536 /* There can be no memory windows */
537 if (atomic_read(&mr->usecnt))
538 return -EINVAL;
539
540 mhp = to_iwch_mr(mr);
541 rhp = mhp->rhp;
542 php = to_iwch_pd(mr->pd);
543
544 /* make sure we are on the same adapter */
545 if (rhp != php->rhp)
546 return -EINVAL;
547
b038ced7
SW		 548 memcpy(&mh, mhp, sizeof *mhp);
549
550 if (mr_rereg_mask & IB_MR_REREG_PD)
551 php = to_iwch_pd(pd);
552 if (mr_rereg_mask & IB_MR_REREG_ACCESS)
e64518f3 553 mh.attr.perms = iwch_ib_to_tpt_access(acc);
d6013471 554 if (mr_rereg_mask & IB_MR_REREG_TRANS) {
b038ced7
SW		 555 ret = build_phys_page_list(buffer_list, num_phys_buf,
556 iova_start,
557 &total_size, &npages,
558 &shift, &page_list);
d6013471
SW		 559 if (ret)
560 return ret;
561 }
b038ced7
SW		 562
563 ret = iwch_reregister_mem(rhp, php, &mh, shift, page_list, npages);
564 kfree(page_list);
565 if (ret) {
566 return ret;
567 }
568 if (mr_rereg_mask & IB_MR_REREG_PD)
569 mhp->attr.pdid = php->pdid;
570 if (mr_rereg_mask & IB_MR_REREG_ACCESS)
e64518f3 571 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
b038ced7
SW		 572 if (mr_rereg_mask & IB_MR_REREG_TRANS) {
573 mhp->attr.zbva = 0;
574 mhp->attr.va_fbo = *iova_start;
575 mhp->attr.page_size = shift - 12;
576 mhp->attr.len = (u32) total_size;
577 mhp->attr.pbl_size = npages;
578 }
579
580 return 0;
581}
582
583
f7c6a7b5
RD		 584static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
585 u64 virt, int acc, struct ib_udata *udata)
b038ced7
SW		 586{
587 __be64 *pages;
588 int shift, n, len;
589 int i, j, k;
590 int err = 0;
591 struct ib_umem_chunk *chunk;
592 struct iwch_dev *rhp;
593 struct iwch_pd *php;
594 struct iwch_mr *mhp;
595 struct iwch_reg_user_mr_resp uresp;
596
33718363 597 PDBG("%s ib_pd %p\n", __func__, pd);
b038ced7
SW		 598
599 php = to_iwch_pd(pd);
600 rhp = php->rhp;
601 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
602 if (!mhp)
603 return ERR_PTR(-ENOMEM);
604
cb9fbc5c 605 mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0);
f7c6a7b5
RD		 606 if (IS_ERR(mhp->umem)) {
607 err = PTR_ERR(mhp->umem);
608 kfree(mhp);
609 return ERR_PTR(err);
610 }
611
612 shift = ffs(mhp->umem->page_size) - 1;
613
b038ced7 614 n = 0;
f7c6a7b5 615 list_for_each_entry(chunk, &mhp->umem->chunk_list, list)
b038ced7
SW		 616 n += chunk->nents;
617
618 pages = kmalloc(n * sizeof(u64), GFP_KERNEL);
619 if (!pages) {
620 err = -ENOMEM;
621 goto err;
622 }
623
b038ced7
SW		 624 i = n = 0;
625
f7c6a7b5 626 list_for_each_entry(chunk, &mhp->umem->chunk_list, list)
b038ced7
SW		 627 for (j = 0; j < chunk->nmap; ++j) {
628 len = sg_dma_len(&chunk->page_list[j]) >> shift;
629 for (k = 0; k < len; ++k) {
630 pages[i++] = cpu_to_be64(sg_dma_address(
631 &chunk->page_list[j]) +
f7c6a7b5 632 mhp->umem->page_size * k);
b038ced7
SW		 633 }
634 }
635
636 mhp->rhp = rhp;
637 mhp->attr.pdid = php->pdid;
638 mhp->attr.zbva = 0;
e64518f3 639 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
f7c6a7b5 640 mhp->attr.va_fbo = virt;
b038ced7 641 mhp->attr.page_size = shift - 12;
f7c6a7b5 642 mhp->attr.len = (u32) length;
b038ced7
SW		 643 mhp->attr.pbl_size = i;
644 err = iwch_register_mem(rhp, php, mhp, shift, pages);
645 kfree(pages);
646 if (err)
647 goto err;
648
8176d297 649 if (udata && !t3a_device(rhp)) {
b038ced7
SW		 650 uresp.pbl_addr = (mhp->attr.pbl_addr -
651 rhp->rdev.rnic_info.pbl_base) >> 3;
33718363 652 PDBG("%s user resp pbl_addr 0x%x\n", __func__,
b038ced7
SW		 653 uresp.pbl_addr);
654
655 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
656 iwch_dereg_mr(&mhp->ibmr);
657 err = -EFAULT;
658 goto err;
659 }
660 }
661
662 return &mhp->ibmr;
663
664err:
f7c6a7b5 665 ib_umem_release(mhp->umem);
b038ced7
SW		 666 kfree(mhp);
667 return ERR_PTR(err);
668}
669
670static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc)
671{
672 struct ib_phys_buf bl;
673 u64 kva;
674 struct ib_mr *ibmr;
675
33718363 676 PDBG("%s ib_pd %p\n", __func__, pd);
b038ced7
SW		 677
678 /*
679 * T3 only supports 32 bits of size.
680 */
681 bl.size = 0xffffffff;
682 bl.addr = 0;
683 kva = 0;
684 ibmr = iwch_register_phys_mem(pd, &bl, 1, acc, &kva);
685 return ibmr;
686}
687
688static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
689{
690 struct iwch_dev *rhp;
691 struct iwch_pd *php;
692 struct iwch_mw *mhp;
693 u32 mmid;
694 u32 stag = 0;
695 int ret;
696
697 php = to_iwch_pd(pd);
698 rhp = php->rhp;
699 mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
700 if (!mhp)
701 return ERR_PTR(-ENOMEM);
702 ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid);
703 if (ret) {
704 kfree(mhp);
705 return ERR_PTR(ret);
706 }
707 mhp->rhp = rhp;
708 mhp->attr.pdid = php->pdid;
709 mhp->attr.type = TPT_MW;
710 mhp->attr.stag = stag;
711 mmid = (stag) >> 8;
712 insert_handle(rhp, &rhp->mmidr, mhp, mmid);
33718363 713 PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
b038ced7
SW		 714 return &(mhp->ibmw);
715}
716
717static int iwch_dealloc_mw(struct ib_mw *mw)
718{
719 struct iwch_dev *rhp;
720 struct iwch_mw *mhp;
721 u32 mmid;
722
723 mhp = to_iwch_mw(mw);
724 rhp = mhp->rhp;
725 mmid = (mw->rkey) >> 8;
726 cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
727 remove_handle(rhp, &rhp->mmidr, mmid);
728 kfree(mhp);
33718363 729 PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp);
b038ced7
SW		 730 return 0;
731}
732
733static int iwch_destroy_qp(struct ib_qp *ib_qp)
734{
735 struct iwch_dev *rhp;
736 struct iwch_qp *qhp;
737 struct iwch_qp_attributes attrs;
738 struct iwch_ucontext *ucontext;
739
740 qhp = to_iwch_qp(ib_qp);
741 rhp = qhp->rhp;
742
2df50da0
SW		 743 attrs.next_state = IWCH_QP_STATE_ERROR;
744 iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0);
b038ced7
SW		 745 wait_event(qhp->wait, !qhp->ep);
746
747 remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid);
748
749 atomic_dec(&qhp->refcnt);
750 wait_event(qhp->wait, !atomic_read(&qhp->refcnt));
751
752 ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context)
753 : NULL;
754 cxio_destroy_qp(&rhp->rdev, &qhp->wq,
755 ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
756
33718363 757 PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__,
b038ced7
SW		 758 ib_qp, qhp->wq.qpid, qhp);
759 kfree(qhp);
760 return 0;
761}
762
763static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
764 struct ib_qp_init_attr *attrs,
765 struct ib_udata *udata)
766{
767 struct iwch_dev *rhp;
768 struct iwch_qp *qhp;
769 struct iwch_pd *php;
770 struct iwch_cq *schp;
771 struct iwch_cq *rchp;
772 struct iwch_create_qp_resp uresp;
773 int wqsize, sqsize, rqsize;
774 struct iwch_ucontext *ucontext;
775
33718363 776 PDBG("%s ib_pd %p\n", __func__, pd);
b038ced7
SW		 777 if (attrs->qp_type != IB_QPT_RC)
778 return ERR_PTR(-EINVAL);
779 php = to_iwch_pd(pd);
780 rhp = php->rhp;
781 schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid);
782 rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid);
783 if (!schp || !rchp)
784 return ERR_PTR(-EINVAL);
785
786 /* The RQT size must be # of entries + 1 rounded up to a power of two */
787 rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr);
788 if (rqsize == attrs->cap.max_recv_wr)
789 rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1);
790
791 /* T3 doesn't support RQT depth < 16 */
792 if (rqsize < 16)
793 rqsize = 16;
794
795 if (rqsize > T3_MAX_RQ_SIZE)
796 return ERR_PTR(-EINVAL);
797
1860cdf8
SW		 798 if (attrs->cap.max_inline_data > T3_MAX_INLINE)
799 return ERR_PTR(-EINVAL);
800
b038ced7
SW		 801 /*
802 * NOTE: The SQ and total WQ sizes don't need to be
803 * a power of two. However, all the code assumes
804 * they are. EG: Q_FREECNT() and friends.
805 */
806 sqsize = roundup_pow_of_two(attrs->cap.max_send_wr);
807 wqsize = roundup_pow_of_two(rqsize + sqsize);
33718363 808 PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__,
b038ced7
SW		 809 wqsize, sqsize, rqsize);
810 qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
811 if (!qhp)
812 return ERR_PTR(-ENOMEM);
813 qhp->wq.size_log2 = ilog2(wqsize);
814 qhp->wq.rq_size_log2 = ilog2(rqsize);
815 qhp->wq.sq_size_log2 = ilog2(sqsize);
816 ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
817 if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq,
818 ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) {
819 kfree(qhp);
820 return ERR_PTR(-ENOMEM);
821 }
1bab74e6 822
b038ced7
SW		 823 attrs->cap.max_recv_wr = rqsize - 1;
824 attrs->cap.max_send_wr = sqsize;
1bab74e6
JM		 825 attrs->cap.max_inline_data = T3_MAX_INLINE;
826
b038ced7
SW		 827 qhp->rhp = rhp;
828 qhp->attr.pd = php->pdid;
829 qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid;
830 qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid;
831 qhp->attr.sq_num_entries = attrs->cap.max_send_wr;
832 qhp->attr.rq_num_entries = attrs->cap.max_recv_wr;
833 qhp->attr.sq_max_sges = attrs->cap.max_send_sge;
834 qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge;
835 qhp->attr.rq_max_sges = attrs->cap.max_recv_sge;
836 qhp->attr.state = IWCH_QP_STATE_IDLE;
837 qhp->attr.next_state = IWCH_QP_STATE_IDLE;
838
839 /*
840 * XXX - These don't get passed in from the openib user
841 * at create time. The CM sets them via a QP modify.
842 * Need to fix... I think the CM should
843 */
844 qhp->attr.enable_rdma_read = 1;
845 qhp->attr.enable_rdma_write = 1;
846 qhp->attr.enable_bind = 1;
847 qhp->attr.max_ord = 1;
848 qhp->attr.max_ird = 1;
849
850 spin_lock_init(&qhp->lock);
851 init_waitqueue_head(&qhp->wait);
852 atomic_set(&qhp->refcnt, 1);
853 insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid);
854
855 if (udata) {
856
857 struct iwch_mm_entry *mm1, *mm2;
858
859 mm1 = kmalloc(sizeof *mm1, GFP_KERNEL);
860 if (!mm1) {
861 iwch_destroy_qp(&qhp->ibqp);
862 return ERR_PTR(-ENOMEM);
863 }
864
865 mm2 = kmalloc(sizeof *mm2, GFP_KERNEL);
866 if (!mm2) {
867 kfree(mm1);
868 iwch_destroy_qp(&qhp->ibqp);
869 return ERR_PTR(-ENOMEM);
870 }
871
872 uresp.qpid = qhp->wq.qpid;
873 uresp.size_log2 = qhp->wq.size_log2;
874 uresp.sq_size_log2 = qhp->wq.sq_size_log2;
875 uresp.rq_size_log2 = qhp->wq.rq_size_log2;
876 spin_lock(&ucontext->mmap_lock);
877 uresp.key = ucontext->key;
878 ucontext->key += PAGE_SIZE;
879 uresp.db_key = ucontext->key;
880 ucontext->key += PAGE_SIZE;
881 spin_unlock(&ucontext->mmap_lock);
882 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
883 kfree(mm1);
884 kfree(mm2);
885 iwch_destroy_qp(&qhp->ibqp);
886 return ERR_PTR(-EFAULT);
887 }
888 mm1->key = uresp.key;
889 mm1->addr = virt_to_phys(qhp->wq.queue);
890 mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr));
891 insert_mmap(ucontext, mm1);
892 mm2->key = uresp.db_key;
893 mm2->addr = qhp->wq.udb & PAGE_MASK;
894 mm2->len = PAGE_SIZE;
895 insert_mmap(ucontext, mm2);
896 }
897 qhp->ibqp.qp_num = qhp->wq.qpid;
898 init_timer(&(qhp->timer));
899 PDBG("%s sq_num_entries %d, rq_num_entries %d "
900 "qpid 0x%0x qhp %p dma_addr 0x%llx size %d\n",
33718363 901 __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
b038ced7
SW		 902 qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr,
903 1 << qhp->wq.size_log2);
904 return &qhp->ibqp;
905}
906
907static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
908 int attr_mask, struct ib_udata *udata)
909{
910 struct iwch_dev *rhp;
911 struct iwch_qp *qhp;
912 enum iwch_qp_attr_mask mask = 0;
913 struct iwch_qp_attributes attrs;
914
33718363 915 PDBG("%s ib_qp %p\n", __func__, ibqp);
b038ced7
SW		 916
917 /* iwarp does not support the RTR state */
918 if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR))
919 attr_mask &= ~IB_QP_STATE;
920
921 /* Make sure we still have something left to do */
922 if (!attr_mask)
923 return 0;
924
925 memset(&attrs, 0, sizeof attrs);
926 qhp = to_iwch_qp(ibqp);
927 rhp = qhp->rhp;
928
929 attrs.next_state = iwch_convert_state(attr->qp_state);
930 attrs.enable_rdma_read = (attr->qp_access_flags &
931 IB_ACCESS_REMOTE_READ) ? 1 : 0;
932 attrs.enable_rdma_write = (attr->qp_access_flags &
933 IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
934 attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0;
935
936
937 mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0;
938 mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ?
939 (IWCH_QP_ATTR_ENABLE_RDMA_READ |
940 IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
941 IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0;
942
943 return iwch_modify_qp(rhp, qhp, mask, &attrs, 0);
944}
945
946void iwch_qp_add_ref(struct ib_qp *qp)
947{
33718363 948 PDBG("%s ib_qp %p\n", __func__, qp);
b038ced7
SW		 949 atomic_inc(&(to_iwch_qp(qp)->refcnt));
950}
951
952void iwch_qp_rem_ref(struct ib_qp *qp)
953{
33718363 954 PDBG("%s ib_qp %p\n", __func__, qp);
b038ced7
SW		 955 if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt)))
956 wake_up(&(to_iwch_qp(qp)->wait));
957}
958
2b540355 959static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn)
b038ced7 960{
33718363 961 PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn);
b038ced7
SW		 962 return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn);
963}
964
965
966static int iwch_query_pkey(struct ib_device *ibdev,
967 u8 port, u16 index, u16 * pkey)
968{
33718363 969 PDBG("%s ibdev %p\n", __func__, ibdev);
b038ced7
SW		 970 *pkey = 0;
971 return 0;
972}
973
974static int iwch_query_gid(struct ib_device *ibdev, u8 port,
975 int index, union ib_gid *gid)
976{
977 struct iwch_dev *dev;
978
979 PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
33718363 980 __func__, ibdev, port, index, gid);
b038ced7
SW		 981 dev = to_iwch_dev(ibdev);
982 BUG_ON(port == 0 || port > 2);
983 memset(&(gid->raw[0]), 0, sizeof(gid->raw));
984 memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6);
985 return 0;
986}
987
988static int iwch_query_device(struct ib_device *ibdev,
989 struct ib_device_attr *props)
990{
991
992 struct iwch_dev *dev;
33718363 993 PDBG("%s ibdev %p\n", __func__, ibdev);
b038ced7
SW		 994
995 dev = to_iwch_dev(ibdev);
996 memset(props, 0, sizeof *props);
997 memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
998 props->device_cap_flags = dev->device_cap_flags;
999 props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
1000 props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
ccaf10d0 1001 props->max_mr_size = dev->attr.max_mr_size;
b038ced7
SW		 1002 props->max_qp = dev->attr.max_qps;
1003 props->max_qp_wr = dev->attr.max_wrs;
1004 props->max_sge = dev->attr.max_sge_per_wr;
1005 props->max_sge_rd = 1;
1006 props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp;
9a766649 1007 props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp;
b038ced7
SW		 1008 props->max_cq = dev->attr.max_cqs;
1009 props->max_cqe = dev->attr.max_cqes_per_cq;
1010 props->max_mr = dev->attr.max_mem_regs;
1011 props->max_pd = dev->attr.max_pds;
1012 props->local_ca_ack_delay = 0;
1013
1014 return 0;
1015}
1016
1017static int iwch_query_port(struct ib_device *ibdev,
1018 u8 port, struct ib_port_attr *props)
1019{
33718363 1020 PDBG("%s ibdev %p\n", __func__, ibdev);
b038ced7
SW		 1021 props->max_mtu = IB_MTU_4096;
1022 props->lid = 0;
1023 props->lmc = 0;
1024 props->sm_lid = 0;
1025 props->sm_sl = 0;
1026 props->state = IB_PORT_ACTIVE;
1027 props->phys_state = 0;
1028 props->port_cap_flags =
1029 IB_PORT_CM_SUP |
1030 IB_PORT_SNMP_TUNNEL_SUP |
1031 IB_PORT_REINIT_SUP |
1032 IB_PORT_DEVICE_MGMT_SUP |
1033 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
1034 props->gid_tbl_len = 1;
1035 props->pkey_tbl_len = 1;
1036 props->qkey_viol_cntr = 0;
1037 props->active_width = 2;
1038 props->active_speed = 2;
1039 props->max_msg_sz = -1;
1040
1041 return 0;
1042}
1043
f4e91eb4
TJ		 1044static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
1045 char *buf)
b038ced7 1046{
f4e91eb4
TJ		 1047 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1048 ibdev.dev);
1049 PDBG("%s dev 0x%p\n", __func__, dev);
1050 return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type);
b038ced7
SW		 1051}
1052
f4e91eb4 1053static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, char *buf)
b038ced7 1054{
f4e91eb4
TJ		 1055 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1056 ibdev.dev);
b038ced7 1057 struct ethtool_drvinfo info;
f4e91eb4 1058 struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
b038ced7 1059
f4e91eb4 1060 PDBG("%s dev 0x%p\n", __func__, dev);
b038ced7
SW		 1061 lldev->ethtool_ops->get_drvinfo(lldev, &info);
1062 return sprintf(buf, "%s\n", info.fw_version);
1063}
1064
f4e91eb4
TJ		 1065static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
1066 char *buf)
b038ced7 1067{
f4e91eb4
TJ		 1068 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1069 ibdev.dev);
b038ced7 1070 struct ethtool_drvinfo info;
f4e91eb4 1071 struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
b038ced7 1072
f4e91eb4 1073 PDBG("%s dev 0x%p\n", __func__, dev);
b038ced7
SW		 1074 lldev->ethtool_ops->get_drvinfo(lldev, &info);
1075 return sprintf(buf, "%s\n", info.driver);
1076}
1077
f4e91eb4
TJ		 1078static ssize_t show_board(struct device *dev, struct device_attribute *attr,
1079 char *buf)
b038ced7 1080{
f4e91eb4
TJ		 1081 struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1082 ibdev.dev);
1083 PDBG("%s dev 0x%p\n", __func__, dev);
1084 return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor,
1085 iwch_dev->rdev.rnic_info.pdev->device);
b038ced7
SW		 1086}
1087
f4e91eb4
TJ		 1088static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
1089static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
1090static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
1091static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
b038ced7 1092
f4e91eb4
TJ		 1093static struct device_attribute *iwch_class_attributes[] = {
1094 &dev_attr_hw_rev,
1095 &dev_attr_fw_ver,
1096 &dev_attr_hca_type,
1097 &dev_attr_board_id
b038ced7
SW		 1098};
1099
1100int iwch_register_device(struct iwch_dev *dev)
1101{
1102 int ret;
1103 int i;
1104
33718363 1105 PDBG("%s iwch_dev %p\n", __func__, dev);
b038ced7
SW		 1106 strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX);
1107 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
1108 memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
1109 dev->ibdev.owner = THIS_MODULE;
1110 dev->device_cap_flags =
0f39cf3d 1111 (IB_DEVICE_ZERO_STAG | IB_DEVICE_MEM_WINDOW);
b038ced7
SW		 1112
1113 dev->ibdev.uverbs_cmd_mask =
1114 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1115 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1116 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1117 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1118 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1119 (1ull << IB_USER_VERBS_CMD_REG_MR) |
1120 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1121 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1122 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
1123 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1124 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
1125 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1126 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
1127 (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
1128 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1129 (1ull << IB_USER_VERBS_CMD_POST_SEND) |
1130 (1ull << IB_USER_VERBS_CMD_POST_RECV);
1131 dev->ibdev.node_type = RDMA_NODE_RNIC;
1132 memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC));
1133 dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports;
f4fd0b22 1134 dev->ibdev.num_comp_vectors = 1;
b038ced7 1135 dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
b038ced7
SW		 1136 dev->ibdev.query_device = iwch_query_device;
1137 dev->ibdev.query_port = iwch_query_port;
1138 dev->ibdev.modify_port = iwch_modify_port;
1139 dev->ibdev.query_pkey = iwch_query_pkey;
1140 dev->ibdev.query_gid = iwch_query_gid;
1141 dev->ibdev.alloc_ucontext = iwch_alloc_ucontext;
1142 dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext;
1143 dev->ibdev.mmap = iwch_mmap;
1144 dev->ibdev.alloc_pd = iwch_allocate_pd;
1145 dev->ibdev.dealloc_pd = iwch_deallocate_pd;
1146 dev->ibdev.create_ah = iwch_ah_create;
1147 dev->ibdev.destroy_ah = iwch_ah_destroy;
1148 dev->ibdev.create_qp = iwch_create_qp;
1149 dev->ibdev.modify_qp = iwch_ib_modify_qp;
1150 dev->ibdev.destroy_qp = iwch_destroy_qp;
1151 dev->ibdev.create_cq = iwch_create_cq;
1152 dev->ibdev.destroy_cq = iwch_destroy_cq;
1153 dev->ibdev.resize_cq = iwch_resize_cq;
1154 dev->ibdev.poll_cq = iwch_poll_cq;
1155 dev->ibdev.get_dma_mr = iwch_get_dma_mr;
1156 dev->ibdev.reg_phys_mr = iwch_register_phys_mem;
1157 dev->ibdev.rereg_phys_mr = iwch_reregister_phys_mem;
1158 dev->ibdev.reg_user_mr = iwch_reg_user_mr;
1159 dev->ibdev.dereg_mr = iwch_dereg_mr;
1160 dev->ibdev.alloc_mw = iwch_alloc_mw;
1161 dev->ibdev.bind_mw = iwch_bind_mw;
1162 dev->ibdev.dealloc_mw = iwch_dealloc_mw;
1163
1164 dev->ibdev.attach_mcast = iwch_multicast_attach;
1165 dev->ibdev.detach_mcast = iwch_multicast_detach;
1166 dev->ibdev.process_mad = iwch_process_mad;
1167
1168 dev->ibdev.req_notify_cq = iwch_arm_cq;
1169 dev->ibdev.post_send = iwch_post_send;
1170 dev->ibdev.post_recv = iwch_post_receive;
1171
1172
6abb6ea8
WC		 1173 dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
1174 if (!dev->ibdev.iwcm)
1175 return -ENOMEM;
1176
b038ced7
SW		 1177 dev->ibdev.iwcm->connect = iwch_connect;
1178 dev->ibdev.iwcm->accept = iwch_accept_cr;
1179 dev->ibdev.iwcm->reject = iwch_reject_cr;
1180 dev->ibdev.iwcm->create_listen = iwch_create_listen;
1181 dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen;
1182 dev->ibdev.iwcm->add_ref = iwch_qp_add_ref;
1183 dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref;
1184 dev->ibdev.iwcm->get_qp = iwch_get_qp;
1185
1186 ret = ib_register_device(&dev->ibdev);
1187 if (ret)
1188 goto bail1;
1189
1190 for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) {
f4e91eb4
TJ		 1191 ret = device_create_file(&dev->ibdev.dev,
1192 iwch_class_attributes[i]);
b038ced7
SW		 1193 if (ret) {
1194 goto bail2;
1195 }
1196 }
1197 return 0;
1198bail2:
1199 ib_unregister_device(&dev->ibdev);
1200bail1:
1201 return ret;
1202}
1203
1204void iwch_unregister_device(struct iwch_dev *dev)
1205{
1206 int i;
1207
33718363 1208 PDBG("%s iwch_dev %p\n", __func__, dev);
b038ced7 1209 for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i)
f4e91eb4
TJ		 1210 device_remove_file(&dev->ibdev.dev,
1211 iwch_class_attributes[i]);
b038ced7
SW		 1212 ib_unregister_device(&dev->ibdev);
1213 return;
1214}
Linux kernel - Deliverables
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