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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" | |
14cc180f | 59 | #include "common.h" |
b038ced7 SW |
60 | |
61 | static int iwch_modify_port(struct ib_device *ibdev, | |
62 | u8 port, int port_modify_mask, | |
63 | struct ib_port_modify *props) | |
64 | { | |
65 | return -ENOSYS; | |
66 | } | |
67 | ||
68 | static struct ib_ah *iwch_ah_create(struct ib_pd *pd, | |
69 | struct ib_ah_attr *ah_attr) | |
70 | { | |
71 | return ERR_PTR(-ENOSYS); | |
72 | } | |
73 | ||
74 | static int iwch_ah_destroy(struct ib_ah *ah) | |
75 | { | |
76 | return -ENOSYS; | |
77 | } | |
78 | ||
79 | static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
80 | { | |
81 | return -ENOSYS; | |
82 | } | |
83 | ||
84 | static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
85 | { | |
86 | return -ENOSYS; | |
87 | } | |
88 | ||
89 | static int iwch_process_mad(struct ib_device *ibdev, | |
90 | int mad_flags, | |
91 | u8 port_num, | |
92 | struct ib_wc *in_wc, | |
93 | struct ib_grh *in_grh, | |
94 | struct ib_mad *in_mad, struct ib_mad *out_mad) | |
95 | { | |
96 | return -ENOSYS; | |
97 | } | |
98 | ||
99 | static int iwch_dealloc_ucontext(struct ib_ucontext *context) | |
100 | { | |
101 | struct iwch_dev *rhp = to_iwch_dev(context->device); | |
102 | struct iwch_ucontext *ucontext = to_iwch_ucontext(context); | |
103 | struct iwch_mm_entry *mm, *tmp; | |
104 | ||
33718363 | 105 | PDBG("%s context %p\n", __func__, context); |
b038ced7 SW |
106 | list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry) |
107 | kfree(mm); | |
108 | cxio_release_ucontext(&rhp->rdev, &ucontext->uctx); | |
109 | kfree(ucontext); | |
110 | return 0; | |
111 | } | |
112 | ||
113 | static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev, | |
114 | struct ib_udata *udata) | |
115 | { | |
116 | struct iwch_ucontext *context; | |
117 | struct iwch_dev *rhp = to_iwch_dev(ibdev); | |
118 | ||
33718363 | 119 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
120 | context = kzalloc(sizeof(*context), GFP_KERNEL); |
121 | if (!context) | |
122 | return ERR_PTR(-ENOMEM); | |
123 | cxio_init_ucontext(&rhp->rdev, &context->uctx); | |
124 | INIT_LIST_HEAD(&context->mmaps); | |
125 | spin_lock_init(&context->mmap_lock); | |
126 | return &context->ibucontext; | |
127 | } | |
128 | ||
129 | static int iwch_destroy_cq(struct ib_cq *ib_cq) | |
130 | { | |
131 | struct iwch_cq *chp; | |
132 | ||
33718363 | 133 | PDBG("%s ib_cq %p\n", __func__, ib_cq); |
b038ced7 SW |
134 | chp = to_iwch_cq(ib_cq); |
135 | ||
136 | remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid); | |
137 | atomic_dec(&chp->refcnt); | |
138 | wait_event(chp->wait, !atomic_read(&chp->refcnt)); | |
139 | ||
140 | cxio_destroy_cq(&chp->rhp->rdev, &chp->cq); | |
141 | kfree(chp); | |
142 | return 0; | |
143 | } | |
144 | ||
f4fd0b22 | 145 | static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int vector, |
b038ced7 SW |
146 | struct ib_ucontext *ib_context, |
147 | struct ib_udata *udata) | |
148 | { | |
149 | struct iwch_dev *rhp; | |
150 | struct iwch_cq *chp; | |
151 | struct iwch_create_cq_resp uresp; | |
152 | struct iwch_create_cq_req ureq; | |
153 | struct iwch_ucontext *ucontext = NULL; | |
154 | ||
33718363 | 155 | PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries); |
b038ced7 SW |
156 | rhp = to_iwch_dev(ibdev); |
157 | chp = kzalloc(sizeof(*chp), GFP_KERNEL); | |
158 | if (!chp) | |
159 | return ERR_PTR(-ENOMEM); | |
160 | ||
161 | if (ib_context) { | |
162 | ucontext = to_iwch_ucontext(ib_context); | |
163 | if (!t3a_device(rhp)) { | |
164 | if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) { | |
165 | kfree(chp); | |
166 | return ERR_PTR(-EFAULT); | |
167 | } | |
168 | chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr; | |
169 | } | |
170 | } | |
171 | ||
172 | if (t3a_device(rhp)) { | |
173 | ||
174 | /* | |
175 | * T3A: Add some fluff to handle extra CQEs inserted | |
176 | * for various errors. | |
177 | * Additional CQE possibilities: | |
178 | * TERMINATE, | |
179 | * incoming RDMA WRITE Failures | |
180 | * incoming RDMA READ REQUEST FAILUREs | |
181 | * NOTE: We cannot ensure the CQ won't overflow. | |
182 | */ | |
183 | entries += 16; | |
184 | } | |
185 | entries = roundup_pow_of_two(entries); | |
186 | chp->cq.size_log2 = ilog2(entries); | |
187 | ||
188 | if (cxio_create_cq(&rhp->rdev, &chp->cq)) { | |
189 | kfree(chp); | |
190 | return ERR_PTR(-ENOMEM); | |
191 | } | |
192 | chp->rhp = rhp; | |
4fa45725 | 193 | chp->ibcq.cqe = 1 << chp->cq.size_log2; |
b038ced7 SW |
194 | spin_lock_init(&chp->lock); |
195 | atomic_set(&chp->refcnt, 1); | |
196 | init_waitqueue_head(&chp->wait); | |
197 | insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid); | |
198 | ||
199 | if (ucontext) { | |
200 | struct iwch_mm_entry *mm; | |
201 | ||
202 | mm = kmalloc(sizeof *mm, GFP_KERNEL); | |
203 | if (!mm) { | |
204 | iwch_destroy_cq(&chp->ibcq); | |
205 | return ERR_PTR(-ENOMEM); | |
206 | } | |
207 | uresp.cqid = chp->cq.cqid; | |
208 | uresp.size_log2 = chp->cq.size_log2; | |
209 | spin_lock(&ucontext->mmap_lock); | |
210 | uresp.key = ucontext->key; | |
211 | ucontext->key += PAGE_SIZE; | |
212 | spin_unlock(&ucontext->mmap_lock); | |
213 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
214 | kfree(mm); | |
215 | iwch_destroy_cq(&chp->ibcq); | |
216 | return ERR_PTR(-EFAULT); | |
217 | } | |
218 | mm->key = uresp.key; | |
219 | mm->addr = virt_to_phys(chp->cq.queue); | |
220 | mm->len = PAGE_ALIGN((1UL << uresp.size_log2) * | |
221 | sizeof (struct t3_cqe)); | |
222 | insert_mmap(ucontext, mm); | |
223 | } | |
224 | PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n", | |
225 | chp->cq.cqid, chp, (1 << chp->cq.size_log2), | |
226 | (unsigned long long) chp->cq.dma_addr); | |
227 | return &chp->ibcq; | |
228 | } | |
229 | ||
230 | static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata) | |
231 | { | |
232 | #ifdef notyet | |
233 | struct iwch_cq *chp = to_iwch_cq(cq); | |
234 | struct t3_cq oldcq, newcq; | |
235 | int ret; | |
236 | ||
33718363 | 237 | PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe); |
b038ced7 SW |
238 | |
239 | /* We don't downsize... */ | |
240 | if (cqe <= cq->cqe) | |
241 | return 0; | |
242 | ||
243 | /* create new t3_cq with new size */ | |
244 | cqe = roundup_pow_of_two(cqe+1); | |
245 | newcq.size_log2 = ilog2(cqe); | |
246 | ||
247 | /* Dont allow resize to less than the current wce count */ | |
248 | if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) { | |
249 | return -ENOMEM; | |
250 | } | |
251 | ||
252 | /* Quiesce all QPs using this CQ */ | |
253 | ret = iwch_quiesce_qps(chp); | |
254 | if (ret) { | |
255 | return ret; | |
256 | } | |
257 | ||
258 | ret = cxio_create_cq(&chp->rhp->rdev, &newcq); | |
259 | if (ret) { | |
260 | return ret; | |
261 | } | |
262 | ||
263 | /* copy CQEs */ | |
264 | memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) * | |
265 | sizeof(struct t3_cqe)); | |
266 | ||
267 | /* old iwch_qp gets new t3_cq but keeps old cqid */ | |
268 | oldcq = chp->cq; | |
269 | chp->cq = newcq; | |
270 | chp->cq.cqid = oldcq.cqid; | |
271 | ||
272 | /* resize new t3_cq to update the HW context */ | |
273 | ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq); | |
274 | if (ret) { | |
275 | chp->cq = oldcq; | |
276 | return ret; | |
277 | } | |
278 | chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1; | |
279 | ||
280 | /* destroy old t3_cq */ | |
281 | oldcq.cqid = newcq.cqid; | |
282 | ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq); | |
283 | if (ret) { | |
284 | printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n", | |
33718363 | 285 | __func__, ret); |
b038ced7 SW |
286 | } |
287 | ||
288 | /* add user hooks here */ | |
289 | ||
290 | /* resume qps */ | |
291 | ret = iwch_resume_qps(chp); | |
292 | return ret; | |
293 | #else | |
294 | return -ENOSYS; | |
295 | #endif | |
296 | } | |
297 | ||
ed23a727 | 298 | static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) |
b038ced7 SW |
299 | { |
300 | struct iwch_dev *rhp; | |
301 | struct iwch_cq *chp; | |
302 | enum t3_cq_opcode cq_op; | |
303 | int err; | |
304 | unsigned long flag; | |
305 | u32 rptr; | |
306 | ||
307 | chp = to_iwch_cq(ibcq); | |
308 | rhp = chp->rhp; | |
ed23a727 | 309 | if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED) |
b038ced7 SW |
310 | cq_op = CQ_ARM_SE; |
311 | else | |
312 | cq_op = CQ_ARM_AN; | |
313 | if (chp->user_rptr_addr) { | |
314 | if (get_user(rptr, chp->user_rptr_addr)) | |
315 | return -EFAULT; | |
316 | spin_lock_irqsave(&chp->lock, flag); | |
317 | chp->cq.rptr = rptr; | |
318 | } else | |
319 | spin_lock_irqsave(&chp->lock, flag); | |
33718363 | 320 | PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr); |
b038ced7 SW |
321 | err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0); |
322 | spin_unlock_irqrestore(&chp->lock, flag); | |
ed23a727 | 323 | if (err < 0) |
b038ced7 SW |
324 | printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err, |
325 | chp->cq.cqid); | |
ed23a727 RD |
326 | if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS)) |
327 | err = 0; | |
b038ced7 SW |
328 | return err; |
329 | } | |
330 | ||
331 | static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
332 | { | |
333 | int len = vma->vm_end - vma->vm_start; | |
334 | u32 key = vma->vm_pgoff << PAGE_SHIFT; | |
335 | struct cxio_rdev *rdev_p; | |
336 | int ret = 0; | |
337 | struct iwch_mm_entry *mm; | |
338 | struct iwch_ucontext *ucontext; | |
aeb100e2 | 339 | u64 addr; |
b038ced7 | 340 | |
33718363 | 341 | PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff, |
b038ced7 SW |
342 | key, len); |
343 | ||
344 | if (vma->vm_start & (PAGE_SIZE-1)) { | |
345 | return -EINVAL; | |
346 | } | |
347 | ||
348 | rdev_p = &(to_iwch_dev(context->device)->rdev); | |
349 | ucontext = to_iwch_ucontext(context); | |
350 | ||
351 | mm = remove_mmap(ucontext, key, len); | |
352 | if (!mm) | |
353 | return -EINVAL; | |
aeb100e2 | 354 | addr = mm->addr; |
b038ced7 SW |
355 | kfree(mm); |
356 | ||
aeb100e2 SW |
357 | if ((addr >= rdev_p->rnic_info.udbell_physbase) && |
358 | (addr < (rdev_p->rnic_info.udbell_physbase + | |
b038ced7 SW |
359 | rdev_p->rnic_info.udbell_len))) { |
360 | ||
361 | /* | |
362 | * Map T3 DB register. | |
363 | */ | |
364 | if (vma->vm_flags & VM_READ) { | |
365 | return -EPERM; | |
366 | } | |
367 | ||
368 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
369 | vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; | |
370 | vma->vm_flags &= ~VM_MAYREAD; | |
371 | ret = io_remap_pfn_range(vma, vma->vm_start, | |
aeb100e2 | 372 | addr >> PAGE_SHIFT, |
b038ced7 SW |
373 | len, vma->vm_page_prot); |
374 | } else { | |
375 | ||
376 | /* | |
377 | * Map WQ or CQ contig dma memory... | |
378 | */ | |
379 | ret = remap_pfn_range(vma, vma->vm_start, | |
aeb100e2 | 380 | addr >> PAGE_SHIFT, |
b038ced7 SW |
381 | len, vma->vm_page_prot); |
382 | } | |
383 | ||
384 | return ret; | |
385 | } | |
386 | ||
387 | static int iwch_deallocate_pd(struct ib_pd *pd) | |
388 | { | |
389 | struct iwch_dev *rhp; | |
390 | struct iwch_pd *php; | |
391 | ||
392 | php = to_iwch_pd(pd); | |
393 | rhp = php->rhp; | |
33718363 | 394 | PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid); |
b038ced7 SW |
395 | cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid); |
396 | kfree(php); | |
397 | return 0; | |
398 | } | |
399 | ||
400 | static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev, | |
401 | struct ib_ucontext *context, | |
402 | struct ib_udata *udata) | |
403 | { | |
404 | struct iwch_pd *php; | |
405 | u32 pdid; | |
406 | struct iwch_dev *rhp; | |
407 | ||
33718363 | 408 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
409 | rhp = (struct iwch_dev *) ibdev; |
410 | pdid = cxio_hal_get_pdid(rhp->rdev.rscp); | |
411 | if (!pdid) | |
412 | return ERR_PTR(-EINVAL); | |
413 | php = kzalloc(sizeof(*php), GFP_KERNEL); | |
414 | if (!php) { | |
415 | cxio_hal_put_pdid(rhp->rdev.rscp, pdid); | |
416 | return ERR_PTR(-ENOMEM); | |
417 | } | |
418 | php->pdid = pdid; | |
419 | php->rhp = rhp; | |
420 | if (context) { | |
421 | if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) { | |
422 | iwch_deallocate_pd(&php->ibpd); | |
423 | return ERR_PTR(-EFAULT); | |
424 | } | |
425 | } | |
33718363 | 426 | PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php); |
b038ced7 SW |
427 | return &php->ibpd; |
428 | } | |
429 | ||
430 | static int iwch_dereg_mr(struct ib_mr *ib_mr) | |
431 | { | |
432 | struct iwch_dev *rhp; | |
433 | struct iwch_mr *mhp; | |
434 | u32 mmid; | |
435 | ||
33718363 | 436 | PDBG("%s ib_mr %p\n", __func__, ib_mr); |
b038ced7 SW |
437 | /* There can be no memory windows */ |
438 | if (atomic_read(&ib_mr->usecnt)) | |
439 | return -EINVAL; | |
440 | ||
441 | mhp = to_iwch_mr(ib_mr); | |
442 | rhp = mhp->rhp; | |
443 | mmid = mhp->attr.stag >> 8; | |
444 | cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, | |
445 | mhp->attr.pbl_addr); | |
273748cc | 446 | iwch_free_pbl(mhp); |
b038ced7 SW |
447 | remove_handle(rhp, &rhp->mmidr, mmid); |
448 | if (mhp->kva) | |
449 | kfree((void *) (unsigned long) mhp->kva); | |
f7c6a7b5 RD |
450 | if (mhp->umem) |
451 | ib_umem_release(mhp->umem); | |
33718363 | 452 | PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp); |
b038ced7 SW |
453 | kfree(mhp); |
454 | return 0; | |
455 | } | |
456 | ||
457 | static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd, | |
458 | struct ib_phys_buf *buffer_list, | |
459 | int num_phys_buf, | |
460 | int acc, | |
461 | u64 *iova_start) | |
462 | { | |
463 | __be64 *page_list; | |
464 | int shift; | |
465 | u64 total_size; | |
466 | int npages; | |
467 | struct iwch_dev *rhp; | |
468 | struct iwch_pd *php; | |
469 | struct iwch_mr *mhp; | |
470 | int ret; | |
471 | ||
33718363 | 472 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
473 | php = to_iwch_pd(pd); |
474 | rhp = php->rhp; | |
475 | ||
b038ced7 SW |
476 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); |
477 | if (!mhp) | |
478 | return ERR_PTR(-ENOMEM); | |
479 | ||
273748cc RD |
480 | mhp->rhp = rhp; |
481 | ||
b038ced7 SW |
482 | /* First check that we have enough alignment */ |
483 | if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) { | |
484 | ret = -EINVAL; | |
485 | goto err; | |
486 | } | |
487 | ||
488 | if (num_phys_buf > 1 && | |
489 | ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) { | |
490 | ret = -EINVAL; | |
491 | goto err; | |
492 | } | |
493 | ||
494 | ret = build_phys_page_list(buffer_list, num_phys_buf, iova_start, | |
495 | &total_size, &npages, &shift, &page_list); | |
496 | if (ret) | |
497 | goto err; | |
498 | ||
273748cc RD |
499 | ret = iwch_alloc_pbl(mhp, npages); |
500 | if (ret) { | |
501 | kfree(page_list); | |
502 | goto err_pbl; | |
503 | } | |
504 | ||
505 | ret = iwch_write_pbl(mhp, page_list, npages, 0); | |
506 | kfree(page_list); | |
507 | if (ret) | |
508 | goto err_pbl; | |
509 | ||
b038ced7 SW |
510 | mhp->attr.pdid = php->pdid; |
511 | mhp->attr.zbva = 0; | |
512 | ||
e64518f3 | 513 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
b038ced7 SW |
514 | mhp->attr.va_fbo = *iova_start; |
515 | mhp->attr.page_size = shift - 12; | |
516 | ||
517 | mhp->attr.len = (u32) total_size; | |
518 | mhp->attr.pbl_size = npages; | |
273748cc RD |
519 | ret = iwch_register_mem(rhp, php, mhp, shift); |
520 | if (ret) | |
521 | goto err_pbl; | |
522 | ||
b038ced7 | 523 | return &mhp->ibmr; |
273748cc RD |
524 | |
525 | err_pbl: | |
526 | iwch_free_pbl(mhp); | |
527 | ||
b038ced7 SW |
528 | err: |
529 | kfree(mhp); | |
530 | return ERR_PTR(ret); | |
531 | ||
532 | } | |
533 | ||
534 | static int iwch_reregister_phys_mem(struct ib_mr *mr, | |
535 | int mr_rereg_mask, | |
536 | struct ib_pd *pd, | |
537 | struct ib_phys_buf *buffer_list, | |
538 | int num_phys_buf, | |
539 | int acc, u64 * iova_start) | |
540 | { | |
541 | ||
542 | struct iwch_mr mh, *mhp; | |
543 | struct iwch_pd *php; | |
544 | struct iwch_dev *rhp; | |
b038ced7 SW |
545 | __be64 *page_list = NULL; |
546 | int shift = 0; | |
547 | u64 total_size; | |
548 | int npages; | |
549 | int ret; | |
550 | ||
33718363 | 551 | PDBG("%s ib_mr %p ib_pd %p\n", __func__, mr, pd); |
b038ced7 SW |
552 | |
553 | /* There can be no memory windows */ | |
554 | if (atomic_read(&mr->usecnt)) | |
555 | return -EINVAL; | |
556 | ||
557 | mhp = to_iwch_mr(mr); | |
558 | rhp = mhp->rhp; | |
559 | php = to_iwch_pd(mr->pd); | |
560 | ||
561 | /* make sure we are on the same adapter */ | |
562 | if (rhp != php->rhp) | |
563 | return -EINVAL; | |
564 | ||
b038ced7 SW |
565 | memcpy(&mh, mhp, sizeof *mhp); |
566 | ||
567 | if (mr_rereg_mask & IB_MR_REREG_PD) | |
568 | php = to_iwch_pd(pd); | |
569 | if (mr_rereg_mask & IB_MR_REREG_ACCESS) | |
e64518f3 | 570 | mh.attr.perms = iwch_ib_to_tpt_access(acc); |
d6013471 | 571 | if (mr_rereg_mask & IB_MR_REREG_TRANS) { |
b038ced7 SW |
572 | ret = build_phys_page_list(buffer_list, num_phys_buf, |
573 | iova_start, | |
574 | &total_size, &npages, | |
575 | &shift, &page_list); | |
d6013471 SW |
576 | if (ret) |
577 | return ret; | |
578 | } | |
b038ced7 | 579 | |
273748cc | 580 | ret = iwch_reregister_mem(rhp, php, &mh, shift, npages); |
b038ced7 SW |
581 | kfree(page_list); |
582 | if (ret) { | |
583 | return ret; | |
584 | } | |
585 | if (mr_rereg_mask & IB_MR_REREG_PD) | |
586 | mhp->attr.pdid = php->pdid; | |
587 | if (mr_rereg_mask & IB_MR_REREG_ACCESS) | |
e64518f3 | 588 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
b038ced7 SW |
589 | if (mr_rereg_mask & IB_MR_REREG_TRANS) { |
590 | mhp->attr.zbva = 0; | |
591 | mhp->attr.va_fbo = *iova_start; | |
592 | mhp->attr.page_size = shift - 12; | |
593 | mhp->attr.len = (u32) total_size; | |
594 | mhp->attr.pbl_size = npages; | |
595 | } | |
596 | ||
597 | return 0; | |
598 | } | |
599 | ||
600 | ||
f7c6a7b5 RD |
601 | static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, |
602 | u64 virt, int acc, struct ib_udata *udata) | |
b038ced7 SW |
603 | { |
604 | __be64 *pages; | |
605 | int shift, n, len; | |
606 | int i, j, k; | |
607 | int err = 0; | |
608 | struct ib_umem_chunk *chunk; | |
609 | struct iwch_dev *rhp; | |
610 | struct iwch_pd *php; | |
611 | struct iwch_mr *mhp; | |
612 | struct iwch_reg_user_mr_resp uresp; | |
613 | ||
33718363 | 614 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
615 | |
616 | php = to_iwch_pd(pd); | |
617 | rhp = php->rhp; | |
618 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
619 | if (!mhp) | |
620 | return ERR_PTR(-ENOMEM); | |
621 | ||
273748cc RD |
622 | mhp->rhp = rhp; |
623 | ||
cb9fbc5c | 624 | mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0); |
f7c6a7b5 RD |
625 | if (IS_ERR(mhp->umem)) { |
626 | err = PTR_ERR(mhp->umem); | |
627 | kfree(mhp); | |
628 | return ERR_PTR(err); | |
629 | } | |
630 | ||
631 | shift = ffs(mhp->umem->page_size) - 1; | |
632 | ||
b038ced7 | 633 | n = 0; |
f7c6a7b5 | 634 | list_for_each_entry(chunk, &mhp->umem->chunk_list, list) |
b038ced7 SW |
635 | n += chunk->nents; |
636 | ||
273748cc RD |
637 | err = iwch_alloc_pbl(mhp, n); |
638 | if (err) | |
639 | goto err; | |
640 | ||
641 | pages = (__be64 *) __get_free_page(GFP_KERNEL); | |
b038ced7 SW |
642 | if (!pages) { |
643 | err = -ENOMEM; | |
273748cc | 644 | goto err_pbl; |
b038ced7 SW |
645 | } |
646 | ||
b038ced7 SW |
647 | i = n = 0; |
648 | ||
f7c6a7b5 | 649 | list_for_each_entry(chunk, &mhp->umem->chunk_list, list) |
b038ced7 SW |
650 | for (j = 0; j < chunk->nmap; ++j) { |
651 | len = sg_dma_len(&chunk->page_list[j]) >> shift; | |
652 | for (k = 0; k < len; ++k) { | |
653 | pages[i++] = cpu_to_be64(sg_dma_address( | |
654 | &chunk->page_list[j]) + | |
f7c6a7b5 | 655 | mhp->umem->page_size * k); |
273748cc RD |
656 | if (i == PAGE_SIZE / sizeof *pages) { |
657 | err = iwch_write_pbl(mhp, pages, i, n); | |
658 | if (err) | |
659 | goto pbl_done; | |
660 | n += i; | |
661 | i = 0; | |
662 | } | |
b038ced7 SW |
663 | } |
664 | } | |
665 | ||
273748cc RD |
666 | if (i) |
667 | err = iwch_write_pbl(mhp, pages, i, n); | |
668 | ||
669 | pbl_done: | |
670 | free_page((unsigned long) pages); | |
671 | if (err) | |
672 | goto err_pbl; | |
673 | ||
b038ced7 SW |
674 | mhp->attr.pdid = php->pdid; |
675 | mhp->attr.zbva = 0; | |
e64518f3 | 676 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
f7c6a7b5 | 677 | mhp->attr.va_fbo = virt; |
b038ced7 | 678 | mhp->attr.page_size = shift - 12; |
f7c6a7b5 | 679 | mhp->attr.len = (u32) length; |
273748cc RD |
680 | |
681 | err = iwch_register_mem(rhp, php, mhp, shift); | |
b038ced7 | 682 | if (err) |
273748cc | 683 | goto err_pbl; |
b038ced7 | 684 | |
8176d297 | 685 | if (udata && !t3a_device(rhp)) { |
b038ced7 | 686 | uresp.pbl_addr = (mhp->attr.pbl_addr - |
273748cc | 687 | rhp->rdev.rnic_info.pbl_base) >> 3; |
33718363 | 688 | PDBG("%s user resp pbl_addr 0x%x\n", __func__, |
b038ced7 SW |
689 | uresp.pbl_addr); |
690 | ||
691 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
692 | iwch_dereg_mr(&mhp->ibmr); | |
693 | err = -EFAULT; | |
694 | goto err; | |
695 | } | |
696 | } | |
697 | ||
698 | return &mhp->ibmr; | |
699 | ||
273748cc RD |
700 | err_pbl: |
701 | iwch_free_pbl(mhp); | |
702 | ||
b038ced7 | 703 | err: |
f7c6a7b5 | 704 | ib_umem_release(mhp->umem); |
b038ced7 SW |
705 | kfree(mhp); |
706 | return ERR_PTR(err); | |
707 | } | |
708 | ||
709 | static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc) | |
710 | { | |
711 | struct ib_phys_buf bl; | |
712 | u64 kva; | |
713 | struct ib_mr *ibmr; | |
714 | ||
33718363 | 715 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
716 | |
717 | /* | |
718 | * T3 only supports 32 bits of size. | |
719 | */ | |
720 | bl.size = 0xffffffff; | |
721 | bl.addr = 0; | |
722 | kva = 0; | |
723 | ibmr = iwch_register_phys_mem(pd, &bl, 1, acc, &kva); | |
724 | return ibmr; | |
725 | } | |
726 | ||
727 | static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd) | |
728 | { | |
729 | struct iwch_dev *rhp; | |
730 | struct iwch_pd *php; | |
731 | struct iwch_mw *mhp; | |
732 | u32 mmid; | |
733 | u32 stag = 0; | |
734 | int ret; | |
735 | ||
736 | php = to_iwch_pd(pd); | |
737 | rhp = php->rhp; | |
738 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
739 | if (!mhp) | |
740 | return ERR_PTR(-ENOMEM); | |
741 | ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid); | |
742 | if (ret) { | |
743 | kfree(mhp); | |
744 | return ERR_PTR(ret); | |
745 | } | |
746 | mhp->rhp = rhp; | |
747 | mhp->attr.pdid = php->pdid; | |
748 | mhp->attr.type = TPT_MW; | |
749 | mhp->attr.stag = stag; | |
750 | mmid = (stag) >> 8; | |
70fe1796 | 751 | mhp->ibmw.rkey = stag; |
b038ced7 | 752 | insert_handle(rhp, &rhp->mmidr, mhp, mmid); |
33718363 | 753 | PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); |
b038ced7 SW |
754 | return &(mhp->ibmw); |
755 | } | |
756 | ||
757 | static int iwch_dealloc_mw(struct ib_mw *mw) | |
758 | { | |
759 | struct iwch_dev *rhp; | |
760 | struct iwch_mw *mhp; | |
761 | u32 mmid; | |
762 | ||
763 | mhp = to_iwch_mw(mw); | |
764 | rhp = mhp->rhp; | |
765 | mmid = (mw->rkey) >> 8; | |
766 | cxio_deallocate_window(&rhp->rdev, mhp->attr.stag); | |
767 | remove_handle(rhp, &rhp->mmidr, mmid); | |
768 | kfree(mhp); | |
33718363 | 769 | PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp); |
b038ced7 SW |
770 | return 0; |
771 | } | |
772 | ||
e7e55829 SW |
773 | static struct ib_mr *iwch_alloc_fast_reg_mr(struct ib_pd *pd, int pbl_depth) |
774 | { | |
775 | struct iwch_dev *rhp; | |
776 | struct iwch_pd *php; | |
777 | struct iwch_mr *mhp; | |
778 | u32 mmid; | |
779 | u32 stag = 0; | |
780 | int ret; | |
781 | ||
782 | php = to_iwch_pd(pd); | |
783 | rhp = php->rhp; | |
784 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
785 | if (!mhp) | |
786 | return ERR_PTR(-ENOMEM); | |
787 | ||
788 | mhp->rhp = rhp; | |
789 | ret = iwch_alloc_pbl(mhp, pbl_depth); | |
790 | if (ret) { | |
791 | kfree(mhp); | |
792 | return ERR_PTR(ret); | |
793 | } | |
794 | mhp->attr.pbl_size = pbl_depth; | |
795 | ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid, | |
796 | mhp->attr.pbl_size, mhp->attr.pbl_addr); | |
797 | if (ret) { | |
798 | iwch_free_pbl(mhp); | |
799 | kfree(mhp); | |
800 | return ERR_PTR(ret); | |
801 | } | |
802 | mhp->attr.pdid = php->pdid; | |
803 | mhp->attr.type = TPT_NON_SHARED_MR; | |
804 | mhp->attr.stag = stag; | |
805 | mhp->attr.state = 1; | |
806 | mmid = (stag) >> 8; | |
807 | mhp->ibmr.rkey = mhp->ibmr.lkey = stag; | |
808 | insert_handle(rhp, &rhp->mmidr, mhp, mmid); | |
809 | PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); | |
810 | return &(mhp->ibmr); | |
811 | } | |
812 | ||
813 | static struct ib_fast_reg_page_list *iwch_alloc_fastreg_pbl( | |
814 | struct ib_device *device, | |
815 | int page_list_len) | |
816 | { | |
817 | struct ib_fast_reg_page_list *page_list; | |
818 | ||
819 | page_list = kmalloc(sizeof *page_list + page_list_len * sizeof(u64), | |
820 | GFP_KERNEL); | |
821 | if (!page_list) | |
822 | return ERR_PTR(-ENOMEM); | |
823 | ||
824 | page_list->page_list = (u64 *)(page_list + 1); | |
825 | page_list->max_page_list_len = page_list_len; | |
826 | ||
827 | return page_list; | |
828 | } | |
829 | ||
830 | static void iwch_free_fastreg_pbl(struct ib_fast_reg_page_list *page_list) | |
831 | { | |
832 | kfree(page_list); | |
833 | } | |
834 | ||
b038ced7 SW |
835 | static int iwch_destroy_qp(struct ib_qp *ib_qp) |
836 | { | |
837 | struct iwch_dev *rhp; | |
838 | struct iwch_qp *qhp; | |
839 | struct iwch_qp_attributes attrs; | |
840 | struct iwch_ucontext *ucontext; | |
841 | ||
842 | qhp = to_iwch_qp(ib_qp); | |
843 | rhp = qhp->rhp; | |
844 | ||
2df50da0 SW |
845 | attrs.next_state = IWCH_QP_STATE_ERROR; |
846 | iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0); | |
b038ced7 SW |
847 | wait_event(qhp->wait, !qhp->ep); |
848 | ||
849 | remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid); | |
850 | ||
851 | atomic_dec(&qhp->refcnt); | |
852 | wait_event(qhp->wait, !atomic_read(&qhp->refcnt)); | |
853 | ||
854 | ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context) | |
855 | : NULL; | |
856 | cxio_destroy_qp(&rhp->rdev, &qhp->wq, | |
857 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx); | |
858 | ||
33718363 | 859 | PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__, |
b038ced7 SW |
860 | ib_qp, qhp->wq.qpid, qhp); |
861 | kfree(qhp); | |
862 | return 0; | |
863 | } | |
864 | ||
865 | static struct ib_qp *iwch_create_qp(struct ib_pd *pd, | |
866 | struct ib_qp_init_attr *attrs, | |
867 | struct ib_udata *udata) | |
868 | { | |
869 | struct iwch_dev *rhp; | |
870 | struct iwch_qp *qhp; | |
871 | struct iwch_pd *php; | |
872 | struct iwch_cq *schp; | |
873 | struct iwch_cq *rchp; | |
874 | struct iwch_create_qp_resp uresp; | |
875 | int wqsize, sqsize, rqsize; | |
876 | struct iwch_ucontext *ucontext; | |
877 | ||
33718363 | 878 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
879 | if (attrs->qp_type != IB_QPT_RC) |
880 | return ERR_PTR(-EINVAL); | |
881 | php = to_iwch_pd(pd); | |
882 | rhp = php->rhp; | |
883 | schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid); | |
884 | rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid); | |
885 | if (!schp || !rchp) | |
886 | return ERR_PTR(-EINVAL); | |
887 | ||
888 | /* The RQT size must be # of entries + 1 rounded up to a power of two */ | |
889 | rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr); | |
890 | if (rqsize == attrs->cap.max_recv_wr) | |
891 | rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1); | |
892 | ||
893 | /* T3 doesn't support RQT depth < 16 */ | |
894 | if (rqsize < 16) | |
895 | rqsize = 16; | |
896 | ||
897 | if (rqsize > T3_MAX_RQ_SIZE) | |
898 | return ERR_PTR(-EINVAL); | |
899 | ||
1860cdf8 SW |
900 | if (attrs->cap.max_inline_data > T3_MAX_INLINE) |
901 | return ERR_PTR(-EINVAL); | |
902 | ||
b038ced7 SW |
903 | /* |
904 | * NOTE: The SQ and total WQ sizes don't need to be | |
905 | * a power of two. However, all the code assumes | |
906 | * they are. EG: Q_FREECNT() and friends. | |
907 | */ | |
908 | sqsize = roundup_pow_of_two(attrs->cap.max_send_wr); | |
909 | wqsize = roundup_pow_of_two(rqsize + sqsize); | |
e7e55829 SW |
910 | |
911 | /* | |
912 | * Kernel users need more wq space for fastreg WRs which can take | |
913 | * 2 WR fragments. | |
914 | */ | |
915 | ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL; | |
916 | if (!ucontext && wqsize < (rqsize + (2 * sqsize))) | |
917 | wqsize = roundup_pow_of_two(rqsize + | |
918 | roundup_pow_of_two(attrs->cap.max_send_wr * 2)); | |
33718363 | 919 | PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__, |
b038ced7 SW |
920 | wqsize, sqsize, rqsize); |
921 | qhp = kzalloc(sizeof(*qhp), GFP_KERNEL); | |
922 | if (!qhp) | |
923 | return ERR_PTR(-ENOMEM); | |
924 | qhp->wq.size_log2 = ilog2(wqsize); | |
925 | qhp->wq.rq_size_log2 = ilog2(rqsize); | |
926 | qhp->wq.sq_size_log2 = ilog2(sqsize); | |
b038ced7 SW |
927 | if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq, |
928 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) { | |
929 | kfree(qhp); | |
930 | return ERR_PTR(-ENOMEM); | |
931 | } | |
1bab74e6 | 932 | |
b038ced7 SW |
933 | attrs->cap.max_recv_wr = rqsize - 1; |
934 | attrs->cap.max_send_wr = sqsize; | |
1bab74e6 JM |
935 | attrs->cap.max_inline_data = T3_MAX_INLINE; |
936 | ||
b038ced7 SW |
937 | qhp->rhp = rhp; |
938 | qhp->attr.pd = php->pdid; | |
939 | qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid; | |
940 | qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid; | |
941 | qhp->attr.sq_num_entries = attrs->cap.max_send_wr; | |
942 | qhp->attr.rq_num_entries = attrs->cap.max_recv_wr; | |
943 | qhp->attr.sq_max_sges = attrs->cap.max_send_sge; | |
944 | qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge; | |
945 | qhp->attr.rq_max_sges = attrs->cap.max_recv_sge; | |
946 | qhp->attr.state = IWCH_QP_STATE_IDLE; | |
947 | qhp->attr.next_state = IWCH_QP_STATE_IDLE; | |
948 | ||
949 | /* | |
950 | * XXX - These don't get passed in from the openib user | |
951 | * at create time. The CM sets them via a QP modify. | |
952 | * Need to fix... I think the CM should | |
953 | */ | |
954 | qhp->attr.enable_rdma_read = 1; | |
955 | qhp->attr.enable_rdma_write = 1; | |
956 | qhp->attr.enable_bind = 1; | |
957 | qhp->attr.max_ord = 1; | |
958 | qhp->attr.max_ird = 1; | |
959 | ||
960 | spin_lock_init(&qhp->lock); | |
961 | init_waitqueue_head(&qhp->wait); | |
962 | atomic_set(&qhp->refcnt, 1); | |
963 | insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid); | |
964 | ||
965 | if (udata) { | |
966 | ||
967 | struct iwch_mm_entry *mm1, *mm2; | |
968 | ||
969 | mm1 = kmalloc(sizeof *mm1, GFP_KERNEL); | |
970 | if (!mm1) { | |
971 | iwch_destroy_qp(&qhp->ibqp); | |
972 | return ERR_PTR(-ENOMEM); | |
973 | } | |
974 | ||
975 | mm2 = kmalloc(sizeof *mm2, GFP_KERNEL); | |
976 | if (!mm2) { | |
977 | kfree(mm1); | |
978 | iwch_destroy_qp(&qhp->ibqp); | |
979 | return ERR_PTR(-ENOMEM); | |
980 | } | |
981 | ||
982 | uresp.qpid = qhp->wq.qpid; | |
983 | uresp.size_log2 = qhp->wq.size_log2; | |
984 | uresp.sq_size_log2 = qhp->wq.sq_size_log2; | |
985 | uresp.rq_size_log2 = qhp->wq.rq_size_log2; | |
986 | spin_lock(&ucontext->mmap_lock); | |
987 | uresp.key = ucontext->key; | |
988 | ucontext->key += PAGE_SIZE; | |
989 | uresp.db_key = ucontext->key; | |
990 | ucontext->key += PAGE_SIZE; | |
991 | spin_unlock(&ucontext->mmap_lock); | |
992 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
993 | kfree(mm1); | |
994 | kfree(mm2); | |
995 | iwch_destroy_qp(&qhp->ibqp); | |
996 | return ERR_PTR(-EFAULT); | |
997 | } | |
998 | mm1->key = uresp.key; | |
999 | mm1->addr = virt_to_phys(qhp->wq.queue); | |
1000 | mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr)); | |
1001 | insert_mmap(ucontext, mm1); | |
1002 | mm2->key = uresp.db_key; | |
1003 | mm2->addr = qhp->wq.udb & PAGE_MASK; | |
1004 | mm2->len = PAGE_SIZE; | |
1005 | insert_mmap(ucontext, mm2); | |
1006 | } | |
1007 | qhp->ibqp.qp_num = qhp->wq.qpid; | |
1008 | init_timer(&(qhp->timer)); | |
1009 | PDBG("%s sq_num_entries %d, rq_num_entries %d " | |
1010 | "qpid 0x%0x qhp %p dma_addr 0x%llx size %d\n", | |
33718363 | 1011 | __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries, |
b038ced7 SW |
1012 | qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr, |
1013 | 1 << qhp->wq.size_log2); | |
1014 | return &qhp->ibqp; | |
1015 | } | |
1016 | ||
1017 | static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
1018 | int attr_mask, struct ib_udata *udata) | |
1019 | { | |
1020 | struct iwch_dev *rhp; | |
1021 | struct iwch_qp *qhp; | |
1022 | enum iwch_qp_attr_mask mask = 0; | |
1023 | struct iwch_qp_attributes attrs; | |
1024 | ||
33718363 | 1025 | PDBG("%s ib_qp %p\n", __func__, ibqp); |
b038ced7 SW |
1026 | |
1027 | /* iwarp does not support the RTR state */ | |
1028 | if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR)) | |
1029 | attr_mask &= ~IB_QP_STATE; | |
1030 | ||
1031 | /* Make sure we still have something left to do */ | |
1032 | if (!attr_mask) | |
1033 | return 0; | |
1034 | ||
1035 | memset(&attrs, 0, sizeof attrs); | |
1036 | qhp = to_iwch_qp(ibqp); | |
1037 | rhp = qhp->rhp; | |
1038 | ||
1039 | attrs.next_state = iwch_convert_state(attr->qp_state); | |
1040 | attrs.enable_rdma_read = (attr->qp_access_flags & | |
1041 | IB_ACCESS_REMOTE_READ) ? 1 : 0; | |
1042 | attrs.enable_rdma_write = (attr->qp_access_flags & | |
1043 | IB_ACCESS_REMOTE_WRITE) ? 1 : 0; | |
1044 | attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0; | |
1045 | ||
1046 | ||
1047 | mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0; | |
1048 | mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ? | |
1049 | (IWCH_QP_ATTR_ENABLE_RDMA_READ | | |
1050 | IWCH_QP_ATTR_ENABLE_RDMA_WRITE | | |
1051 | IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0; | |
1052 | ||
1053 | return iwch_modify_qp(rhp, qhp, mask, &attrs, 0); | |
1054 | } | |
1055 | ||
1056 | void iwch_qp_add_ref(struct ib_qp *qp) | |
1057 | { | |
33718363 | 1058 | PDBG("%s ib_qp %p\n", __func__, qp); |
b038ced7 SW |
1059 | atomic_inc(&(to_iwch_qp(qp)->refcnt)); |
1060 | } | |
1061 | ||
1062 | void iwch_qp_rem_ref(struct ib_qp *qp) | |
1063 | { | |
33718363 | 1064 | PDBG("%s ib_qp %p\n", __func__, qp); |
b038ced7 SW |
1065 | if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt))) |
1066 | wake_up(&(to_iwch_qp(qp)->wait)); | |
1067 | } | |
1068 | ||
2b540355 | 1069 | static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn) |
b038ced7 | 1070 | { |
33718363 | 1071 | PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn); |
b038ced7 SW |
1072 | return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn); |
1073 | } | |
1074 | ||
1075 | ||
1076 | static int iwch_query_pkey(struct ib_device *ibdev, | |
1077 | u8 port, u16 index, u16 * pkey) | |
1078 | { | |
33718363 | 1079 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
1080 | *pkey = 0; |
1081 | return 0; | |
1082 | } | |
1083 | ||
1084 | static int iwch_query_gid(struct ib_device *ibdev, u8 port, | |
1085 | int index, union ib_gid *gid) | |
1086 | { | |
1087 | struct iwch_dev *dev; | |
1088 | ||
1089 | PDBG("%s ibdev %p, port %d, index %d, gid %p\n", | |
33718363 | 1090 | __func__, ibdev, port, index, gid); |
b038ced7 SW |
1091 | dev = to_iwch_dev(ibdev); |
1092 | BUG_ON(port == 0 || port > 2); | |
1093 | memset(&(gid->raw[0]), 0, sizeof(gid->raw)); | |
1094 | memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6); | |
1095 | return 0; | |
1096 | } | |
1097 | ||
97d1cc80 SW |
1098 | static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev) |
1099 | { | |
1100 | struct ethtool_drvinfo info; | |
1101 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; | |
1102 | char *cp, *next; | |
1103 | unsigned fw_maj, fw_min, fw_mic; | |
1104 | ||
1105 | rtnl_lock(); | |
1106 | lldev->ethtool_ops->get_drvinfo(lldev, &info); | |
1107 | rtnl_unlock(); | |
1108 | ||
1109 | next = info.fw_version + 1; | |
1110 | cp = strsep(&next, "."); | |
1111 | sscanf(cp, "%i", &fw_maj); | |
1112 | cp = strsep(&next, "."); | |
1113 | sscanf(cp, "%i", &fw_min); | |
1114 | cp = strsep(&next, "."); | |
1115 | sscanf(cp, "%i", &fw_mic); | |
1116 | ||
1117 | return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) | | |
1118 | (fw_mic & 0xffff); | |
1119 | } | |
1120 | ||
b038ced7 SW |
1121 | static int iwch_query_device(struct ib_device *ibdev, |
1122 | struct ib_device_attr *props) | |
1123 | { | |
1124 | ||
1125 | struct iwch_dev *dev; | |
33718363 | 1126 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
1127 | |
1128 | dev = to_iwch_dev(ibdev); | |
1129 | memset(props, 0, sizeof *props); | |
1130 | memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); | |
97d1cc80 SW |
1131 | props->hw_ver = dev->rdev.t3cdev_p->type; |
1132 | props->fw_ver = fw_vers_string_to_u64(dev); | |
b038ced7 | 1133 | props->device_cap_flags = dev->device_cap_flags; |
52c8084b | 1134 | props->page_size_cap = dev->attr.mem_pgsizes_bitmask; |
b038ced7 SW |
1135 | props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor; |
1136 | props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device; | |
ccaf10d0 | 1137 | props->max_mr_size = dev->attr.max_mr_size; |
b038ced7 SW |
1138 | props->max_qp = dev->attr.max_qps; |
1139 | props->max_qp_wr = dev->attr.max_wrs; | |
1140 | props->max_sge = dev->attr.max_sge_per_wr; | |
1141 | props->max_sge_rd = 1; | |
1142 | props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp; | |
9a766649 | 1143 | props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp; |
b038ced7 SW |
1144 | props->max_cq = dev->attr.max_cqs; |
1145 | props->max_cqe = dev->attr.max_cqes_per_cq; | |
1146 | props->max_mr = dev->attr.max_mem_regs; | |
1147 | props->max_pd = dev->attr.max_pds; | |
1148 | props->local_ca_ack_delay = 0; | |
e7e55829 | 1149 | props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH; |
b038ced7 SW |
1150 | |
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | static int iwch_query_port(struct ib_device *ibdev, | |
1155 | u8 port, struct ib_port_attr *props) | |
1156 | { | |
33718363 | 1157 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
1158 | props->max_mtu = IB_MTU_4096; |
1159 | props->lid = 0; | |
1160 | props->lmc = 0; | |
1161 | props->sm_lid = 0; | |
1162 | props->sm_sl = 0; | |
1163 | props->state = IB_PORT_ACTIVE; | |
1164 | props->phys_state = 0; | |
1165 | props->port_cap_flags = | |
1166 | IB_PORT_CM_SUP | | |
1167 | IB_PORT_SNMP_TUNNEL_SUP | | |
1168 | IB_PORT_REINIT_SUP | | |
1169 | IB_PORT_DEVICE_MGMT_SUP | | |
1170 | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; | |
1171 | props->gid_tbl_len = 1; | |
1172 | props->pkey_tbl_len = 1; | |
1173 | props->qkey_viol_cntr = 0; | |
1174 | props->active_width = 2; | |
1175 | props->active_speed = 2; | |
1176 | props->max_msg_sz = -1; | |
1177 | ||
1178 | return 0; | |
1179 | } | |
1180 | ||
f4e91eb4 TJ |
1181 | static ssize_t show_rev(struct device *dev, struct device_attribute *attr, |
1182 | char *buf) | |
b038ced7 | 1183 | { |
f4e91eb4 TJ |
1184 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1185 | ibdev.dev); | |
1186 | PDBG("%s dev 0x%p\n", __func__, dev); | |
1187 | return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type); | |
b038ced7 SW |
1188 | } |
1189 | ||
e7e55829 SW |
1190 | static int fw_supports_fastreg(struct iwch_dev *iwch_dev) |
1191 | { | |
1192 | struct ethtool_drvinfo info; | |
1193 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; | |
1194 | char *cp, *next; | |
1195 | unsigned fw_maj, fw_min; | |
1196 | ||
1197 | rtnl_lock(); | |
1198 | lldev->ethtool_ops->get_drvinfo(lldev, &info); | |
1199 | rtnl_unlock(); | |
1200 | ||
1201 | next = info.fw_version+1; | |
1202 | cp = strsep(&next, "."); | |
1203 | sscanf(cp, "%i", &fw_maj); | |
1204 | cp = strsep(&next, "."); | |
1205 | sscanf(cp, "%i", &fw_min); | |
1206 | ||
1207 | PDBG("%s maj %u min %u\n", __func__, fw_maj, fw_min); | |
1208 | ||
1209 | return fw_maj > 6 || (fw_maj == 6 && fw_min > 0); | |
1210 | } | |
1211 | ||
f4e91eb4 | 1212 | static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, char *buf) |
b038ced7 | 1213 | { |
f4e91eb4 TJ |
1214 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1215 | ibdev.dev); | |
b038ced7 | 1216 | struct ethtool_drvinfo info; |
f4e91eb4 | 1217 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
b038ced7 | 1218 | |
f4e91eb4 | 1219 | PDBG("%s dev 0x%p\n", __func__, dev); |
5e19cf66 | 1220 | rtnl_lock(); |
b038ced7 | 1221 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
5e19cf66 | 1222 | rtnl_unlock(); |
b038ced7 SW |
1223 | return sprintf(buf, "%s\n", info.fw_version); |
1224 | } | |
1225 | ||
f4e91eb4 TJ |
1226 | static ssize_t show_hca(struct device *dev, struct device_attribute *attr, |
1227 | char *buf) | |
b038ced7 | 1228 | { |
f4e91eb4 TJ |
1229 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1230 | ibdev.dev); | |
b038ced7 | 1231 | struct ethtool_drvinfo info; |
f4e91eb4 | 1232 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
b038ced7 | 1233 | |
f4e91eb4 | 1234 | PDBG("%s dev 0x%p\n", __func__, dev); |
5e19cf66 | 1235 | rtnl_lock(); |
b038ced7 | 1236 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
5e19cf66 | 1237 | rtnl_unlock(); |
b038ced7 SW |
1238 | return sprintf(buf, "%s\n", info.driver); |
1239 | } | |
1240 | ||
f4e91eb4 TJ |
1241 | static ssize_t show_board(struct device *dev, struct device_attribute *attr, |
1242 | char *buf) | |
b038ced7 | 1243 | { |
f4e91eb4 TJ |
1244 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1245 | ibdev.dev); | |
1246 | PDBG("%s dev 0x%p\n", __func__, dev); | |
1247 | return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor, | |
1248 | iwch_dev->rdev.rnic_info.pdev->device); | |
b038ced7 SW |
1249 | } |
1250 | ||
14cc180f SW |
1251 | static int iwch_get_mib(struct ib_device *ibdev, |
1252 | union rdma_protocol_stats *stats) | |
1253 | { | |
1254 | struct iwch_dev *dev; | |
1255 | struct tp_mib_stats m; | |
1256 | int ret; | |
1257 | ||
1258 | PDBG("%s ibdev %p\n", __func__, ibdev); | |
1259 | dev = to_iwch_dev(ibdev); | |
1260 | ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m); | |
1261 | if (ret) | |
1262 | return -ENOSYS; | |
1263 | ||
1264 | memset(stats, 0, sizeof *stats); | |
1265 | stats->iw.ipInReceives = ((u64) m.ipInReceive_hi << 32) + | |
1266 | m.ipInReceive_lo; | |
1267 | stats->iw.ipInHdrErrors = ((u64) m.ipInHdrErrors_hi << 32) + | |
1268 | m.ipInHdrErrors_lo; | |
1269 | stats->iw.ipInAddrErrors = ((u64) m.ipInAddrErrors_hi << 32) + | |
1270 | m.ipInAddrErrors_lo; | |
1271 | stats->iw.ipInUnknownProtos = ((u64) m.ipInUnknownProtos_hi << 32) + | |
1272 | m.ipInUnknownProtos_lo; | |
1273 | stats->iw.ipInDiscards = ((u64) m.ipInDiscards_hi << 32) + | |
1274 | m.ipInDiscards_lo; | |
1275 | stats->iw.ipInDelivers = ((u64) m.ipInDelivers_hi << 32) + | |
1276 | m.ipInDelivers_lo; | |
1277 | stats->iw.ipOutRequests = ((u64) m.ipOutRequests_hi << 32) + | |
1278 | m.ipOutRequests_lo; | |
1279 | stats->iw.ipOutDiscards = ((u64) m.ipOutDiscards_hi << 32) + | |
1280 | m.ipOutDiscards_lo; | |
1281 | stats->iw.ipOutNoRoutes = ((u64) m.ipOutNoRoutes_hi << 32) + | |
1282 | m.ipOutNoRoutes_lo; | |
1283 | stats->iw.ipReasmTimeout = (u64) m.ipReasmTimeout; | |
1284 | stats->iw.ipReasmReqds = (u64) m.ipReasmReqds; | |
1285 | stats->iw.ipReasmOKs = (u64) m.ipReasmOKs; | |
1286 | stats->iw.ipReasmFails = (u64) m.ipReasmFails; | |
1287 | stats->iw.tcpActiveOpens = (u64) m.tcpActiveOpens; | |
1288 | stats->iw.tcpPassiveOpens = (u64) m.tcpPassiveOpens; | |
1289 | stats->iw.tcpAttemptFails = (u64) m.tcpAttemptFails; | |
1290 | stats->iw.tcpEstabResets = (u64) m.tcpEstabResets; | |
1291 | stats->iw.tcpOutRsts = (u64) m.tcpOutRsts; | |
1292 | stats->iw.tcpCurrEstab = (u64) m.tcpCurrEstab; | |
1293 | stats->iw.tcpInSegs = ((u64) m.tcpInSegs_hi << 32) + | |
1294 | m.tcpInSegs_lo; | |
1295 | stats->iw.tcpOutSegs = ((u64) m.tcpOutSegs_hi << 32) + | |
1296 | m.tcpOutSegs_lo; | |
1297 | stats->iw.tcpRetransSegs = ((u64) m.tcpRetransSeg_hi << 32) + | |
1298 | m.tcpRetransSeg_lo; | |
1299 | stats->iw.tcpInErrs = ((u64) m.tcpInErrs_hi << 32) + | |
1300 | m.tcpInErrs_lo; | |
1301 | stats->iw.tcpRtoMin = (u64) m.tcpRtoMin; | |
1302 | stats->iw.tcpRtoMax = (u64) m.tcpRtoMax; | |
1303 | return 0; | |
1304 | } | |
1305 | ||
f4e91eb4 TJ |
1306 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
1307 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
1308 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
1309 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
b038ced7 | 1310 | |
f4e91eb4 TJ |
1311 | static struct device_attribute *iwch_class_attributes[] = { |
1312 | &dev_attr_hw_rev, | |
1313 | &dev_attr_fw_ver, | |
1314 | &dev_attr_hca_type, | |
14cc180f | 1315 | &dev_attr_board_id, |
b038ced7 SW |
1316 | }; |
1317 | ||
1318 | int iwch_register_device(struct iwch_dev *dev) | |
1319 | { | |
1320 | int ret; | |
1321 | int i; | |
1322 | ||
33718363 | 1323 | PDBG("%s iwch_dev %p\n", __func__, dev); |
b038ced7 SW |
1324 | strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX); |
1325 | memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); | |
1326 | memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); | |
1327 | dev->ibdev.owner = THIS_MODULE; | |
96f15c03 SW |
1328 | dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW; |
1329 | ||
1330 | /* cxgb3 supports STag 0. */ | |
1331 | dev->ibdev.local_dma_lkey = 0; | |
e7e55829 SW |
1332 | if (fw_supports_fastreg(dev)) |
1333 | dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; | |
b038ced7 SW |
1334 | |
1335 | dev->ibdev.uverbs_cmd_mask = | |
1336 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1337 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1338 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1339 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1340 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1341 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1342 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1343 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1344 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
1345 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
1346 | (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | | |
1347 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
1348 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
1349 | (1ull << IB_USER_VERBS_CMD_POLL_CQ) | | |
1350 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
1351 | (1ull << IB_USER_VERBS_CMD_POST_SEND) | | |
1352 | (1ull << IB_USER_VERBS_CMD_POST_RECV); | |
1353 | dev->ibdev.node_type = RDMA_NODE_RNIC; | |
1354 | memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC)); | |
1355 | dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports; | |
f4fd0b22 | 1356 | dev->ibdev.num_comp_vectors = 1; |
b038ced7 | 1357 | dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev); |
b038ced7 SW |
1358 | dev->ibdev.query_device = iwch_query_device; |
1359 | dev->ibdev.query_port = iwch_query_port; | |
1360 | dev->ibdev.modify_port = iwch_modify_port; | |
1361 | dev->ibdev.query_pkey = iwch_query_pkey; | |
1362 | dev->ibdev.query_gid = iwch_query_gid; | |
1363 | dev->ibdev.alloc_ucontext = iwch_alloc_ucontext; | |
1364 | dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext; | |
1365 | dev->ibdev.mmap = iwch_mmap; | |
1366 | dev->ibdev.alloc_pd = iwch_allocate_pd; | |
1367 | dev->ibdev.dealloc_pd = iwch_deallocate_pd; | |
1368 | dev->ibdev.create_ah = iwch_ah_create; | |
1369 | dev->ibdev.destroy_ah = iwch_ah_destroy; | |
1370 | dev->ibdev.create_qp = iwch_create_qp; | |
1371 | dev->ibdev.modify_qp = iwch_ib_modify_qp; | |
1372 | dev->ibdev.destroy_qp = iwch_destroy_qp; | |
1373 | dev->ibdev.create_cq = iwch_create_cq; | |
1374 | dev->ibdev.destroy_cq = iwch_destroy_cq; | |
1375 | dev->ibdev.resize_cq = iwch_resize_cq; | |
1376 | dev->ibdev.poll_cq = iwch_poll_cq; | |
1377 | dev->ibdev.get_dma_mr = iwch_get_dma_mr; | |
1378 | dev->ibdev.reg_phys_mr = iwch_register_phys_mem; | |
1379 | dev->ibdev.rereg_phys_mr = iwch_reregister_phys_mem; | |
1380 | dev->ibdev.reg_user_mr = iwch_reg_user_mr; | |
1381 | dev->ibdev.dereg_mr = iwch_dereg_mr; | |
1382 | dev->ibdev.alloc_mw = iwch_alloc_mw; | |
1383 | dev->ibdev.bind_mw = iwch_bind_mw; | |
1384 | dev->ibdev.dealloc_mw = iwch_dealloc_mw; | |
e7e55829 SW |
1385 | dev->ibdev.alloc_fast_reg_mr = iwch_alloc_fast_reg_mr; |
1386 | dev->ibdev.alloc_fast_reg_page_list = iwch_alloc_fastreg_pbl; | |
1387 | dev->ibdev.free_fast_reg_page_list = iwch_free_fastreg_pbl; | |
b038ced7 SW |
1388 | dev->ibdev.attach_mcast = iwch_multicast_attach; |
1389 | dev->ibdev.detach_mcast = iwch_multicast_detach; | |
1390 | dev->ibdev.process_mad = iwch_process_mad; | |
b038ced7 SW |
1391 | dev->ibdev.req_notify_cq = iwch_arm_cq; |
1392 | dev->ibdev.post_send = iwch_post_send; | |
1393 | dev->ibdev.post_recv = iwch_post_receive; | |
14cc180f | 1394 | dev->ibdev.get_protocol_stats = iwch_get_mib; |
b038ced7 | 1395 | |
6abb6ea8 WC |
1396 | dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); |
1397 | if (!dev->ibdev.iwcm) | |
1398 | return -ENOMEM; | |
1399 | ||
b038ced7 SW |
1400 | dev->ibdev.iwcm->connect = iwch_connect; |
1401 | dev->ibdev.iwcm->accept = iwch_accept_cr; | |
1402 | dev->ibdev.iwcm->reject = iwch_reject_cr; | |
1403 | dev->ibdev.iwcm->create_listen = iwch_create_listen; | |
1404 | dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen; | |
1405 | dev->ibdev.iwcm->add_ref = iwch_qp_add_ref; | |
1406 | dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref; | |
1407 | dev->ibdev.iwcm->get_qp = iwch_get_qp; | |
1408 | ||
1409 | ret = ib_register_device(&dev->ibdev); | |
1410 | if (ret) | |
1411 | goto bail1; | |
1412 | ||
1413 | for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) { | |
f4e91eb4 TJ |
1414 | ret = device_create_file(&dev->ibdev.dev, |
1415 | iwch_class_attributes[i]); | |
b038ced7 SW |
1416 | if (ret) { |
1417 | goto bail2; | |
1418 | } | |
1419 | } | |
1420 | return 0; | |
1421 | bail2: | |
1422 | ib_unregister_device(&dev->ibdev); | |
1423 | bail1: | |
1424 | return ret; | |
1425 | } | |
1426 | ||
1427 | void iwch_unregister_device(struct iwch_dev *dev) | |
1428 | { | |
1429 | int i; | |
1430 | ||
33718363 | 1431 | PDBG("%s iwch_dev %p\n", __func__, dev); |
b038ced7 | 1432 | for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) |
f4e91eb4 TJ |
1433 | device_remove_file(&dev->ibdev.dev, |
1434 | iwch_class_attributes[i]); | |
b038ced7 SW |
1435 | ib_unregister_device(&dev->ibdev); |
1436 | return; | |
1437 | } |