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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> | |
d43c36dc | 40 | #include <linux/sched.h> |
b038ced7 SW |
41 | #include <linux/spinlock.h> |
42 | #include <linux/ethtool.h> | |
7f049f2f | 43 | #include <linux/rtnetlink.h> |
7ab1a2b3 | 44 | #include <linux/inetdevice.h> |
b038ced7 SW |
45 | |
46 | #include <asm/io.h> | |
47 | #include <asm/irq.h> | |
48 | #include <asm/byteorder.h> | |
49 | ||
50 | #include <rdma/iw_cm.h> | |
51 | #include <rdma/ib_verbs.h> | |
52 | #include <rdma/ib_smi.h> | |
f7c6a7b5 | 53 | #include <rdma/ib_umem.h> |
b038ced7 SW |
54 | #include <rdma/ib_user_verbs.h> |
55 | ||
56 | #include "cxio_hal.h" | |
57 | #include "iwch.h" | |
58 | #include "iwch_provider.h" | |
59 | #include "iwch_cm.h" | |
60 | #include "iwch_user.h" | |
14cc180f | 61 | #include "common.h" |
b038ced7 SW |
62 | |
63 | static int iwch_modify_port(struct ib_device *ibdev, | |
64 | u8 port, int port_modify_mask, | |
65 | struct ib_port_modify *props) | |
66 | { | |
67 | return -ENOSYS; | |
68 | } | |
69 | ||
70 | static struct ib_ah *iwch_ah_create(struct ib_pd *pd, | |
71 | struct ib_ah_attr *ah_attr) | |
72 | { | |
73 | return ERR_PTR(-ENOSYS); | |
74 | } | |
75 | ||
76 | static int iwch_ah_destroy(struct ib_ah *ah) | |
77 | { | |
78 | return -ENOSYS; | |
79 | } | |
80 | ||
81 | static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
82 | { | |
83 | return -ENOSYS; | |
84 | } | |
85 | ||
86 | static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
87 | { | |
88 | return -ENOSYS; | |
89 | } | |
90 | ||
91 | static int iwch_process_mad(struct ib_device *ibdev, | |
92 | int mad_flags, | |
93 | u8 port_num, | |
94 | struct ib_wc *in_wc, | |
95 | struct ib_grh *in_grh, | |
96 | struct ib_mad *in_mad, struct ib_mad *out_mad) | |
97 | { | |
98 | return -ENOSYS; | |
99 | } | |
100 | ||
101 | static int iwch_dealloc_ucontext(struct ib_ucontext *context) | |
102 | { | |
103 | struct iwch_dev *rhp = to_iwch_dev(context->device); | |
104 | struct iwch_ucontext *ucontext = to_iwch_ucontext(context); | |
105 | struct iwch_mm_entry *mm, *tmp; | |
106 | ||
33718363 | 107 | PDBG("%s context %p\n", __func__, context); |
b038ced7 SW |
108 | list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry) |
109 | kfree(mm); | |
110 | cxio_release_ucontext(&rhp->rdev, &ucontext->uctx); | |
111 | kfree(ucontext); | |
112 | return 0; | |
113 | } | |
114 | ||
115 | static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev, | |
116 | struct ib_udata *udata) | |
117 | { | |
118 | struct iwch_ucontext *context; | |
119 | struct iwch_dev *rhp = to_iwch_dev(ibdev); | |
120 | ||
33718363 | 121 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
122 | context = kzalloc(sizeof(*context), GFP_KERNEL); |
123 | if (!context) | |
124 | return ERR_PTR(-ENOMEM); | |
125 | cxio_init_ucontext(&rhp->rdev, &context->uctx); | |
126 | INIT_LIST_HEAD(&context->mmaps); | |
127 | spin_lock_init(&context->mmap_lock); | |
128 | return &context->ibucontext; | |
129 | } | |
130 | ||
131 | static int iwch_destroy_cq(struct ib_cq *ib_cq) | |
132 | { | |
133 | struct iwch_cq *chp; | |
134 | ||
33718363 | 135 | PDBG("%s ib_cq %p\n", __func__, ib_cq); |
b038ced7 SW |
136 | chp = to_iwch_cq(ib_cq); |
137 | ||
138 | remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid); | |
139 | atomic_dec(&chp->refcnt); | |
140 | wait_event(chp->wait, !atomic_read(&chp->refcnt)); | |
141 | ||
142 | cxio_destroy_cq(&chp->rhp->rdev, &chp->cq); | |
143 | kfree(chp); | |
144 | return 0; | |
145 | } | |
146 | ||
f4fd0b22 | 147 | static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int vector, |
b038ced7 SW |
148 | struct ib_ucontext *ib_context, |
149 | struct ib_udata *udata) | |
150 | { | |
151 | struct iwch_dev *rhp; | |
152 | struct iwch_cq *chp; | |
153 | struct iwch_create_cq_resp uresp; | |
154 | struct iwch_create_cq_req ureq; | |
155 | struct iwch_ucontext *ucontext = NULL; | |
156 | ||
33718363 | 157 | PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries); |
b038ced7 SW |
158 | rhp = to_iwch_dev(ibdev); |
159 | chp = kzalloc(sizeof(*chp), GFP_KERNEL); | |
160 | if (!chp) | |
161 | return ERR_PTR(-ENOMEM); | |
162 | ||
163 | if (ib_context) { | |
164 | ucontext = to_iwch_ucontext(ib_context); | |
165 | if (!t3a_device(rhp)) { | |
166 | if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) { | |
167 | kfree(chp); | |
168 | return ERR_PTR(-EFAULT); | |
169 | } | |
170 | chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr; | |
171 | } | |
172 | } | |
173 | ||
174 | if (t3a_device(rhp)) { | |
175 | ||
176 | /* | |
177 | * T3A: Add some fluff to handle extra CQEs inserted | |
178 | * for various errors. | |
179 | * Additional CQE possibilities: | |
180 | * TERMINATE, | |
181 | * incoming RDMA WRITE Failures | |
182 | * incoming RDMA READ REQUEST FAILUREs | |
183 | * NOTE: We cannot ensure the CQ won't overflow. | |
184 | */ | |
185 | entries += 16; | |
186 | } | |
187 | entries = roundup_pow_of_two(entries); | |
188 | chp->cq.size_log2 = ilog2(entries); | |
189 | ||
5279d3ac | 190 | if (cxio_create_cq(&rhp->rdev, &chp->cq, !ucontext)) { |
b038ced7 SW |
191 | kfree(chp); |
192 | return ERR_PTR(-ENOMEM); | |
193 | } | |
194 | chp->rhp = rhp; | |
4fa45725 | 195 | chp->ibcq.cqe = 1 << chp->cq.size_log2; |
b038ced7 SW |
196 | spin_lock_init(&chp->lock); |
197 | atomic_set(&chp->refcnt, 1); | |
198 | init_waitqueue_head(&chp->wait); | |
13a23933 SW |
199 | if (insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid)) { |
200 | cxio_destroy_cq(&chp->rhp->rdev, &chp->cq); | |
201 | kfree(chp); | |
202 | return ERR_PTR(-ENOMEM); | |
203 | } | |
b038ced7 SW |
204 | |
205 | if (ucontext) { | |
206 | struct iwch_mm_entry *mm; | |
207 | ||
208 | mm = kmalloc(sizeof *mm, GFP_KERNEL); | |
209 | if (!mm) { | |
210 | iwch_destroy_cq(&chp->ibcq); | |
211 | return ERR_PTR(-ENOMEM); | |
212 | } | |
213 | uresp.cqid = chp->cq.cqid; | |
214 | uresp.size_log2 = chp->cq.size_log2; | |
215 | spin_lock(&ucontext->mmap_lock); | |
216 | uresp.key = ucontext->key; | |
217 | ucontext->key += PAGE_SIZE; | |
218 | spin_unlock(&ucontext->mmap_lock); | |
219 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
220 | kfree(mm); | |
221 | iwch_destroy_cq(&chp->ibcq); | |
222 | return ERR_PTR(-EFAULT); | |
223 | } | |
224 | mm->key = uresp.key; | |
225 | mm->addr = virt_to_phys(chp->cq.queue); | |
226 | mm->len = PAGE_ALIGN((1UL << uresp.size_log2) * | |
227 | sizeof (struct t3_cqe)); | |
228 | insert_mmap(ucontext, mm); | |
229 | } | |
230 | PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n", | |
231 | chp->cq.cqid, chp, (1 << chp->cq.size_log2), | |
232 | (unsigned long long) chp->cq.dma_addr); | |
233 | return &chp->ibcq; | |
234 | } | |
235 | ||
236 | static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata) | |
237 | { | |
238 | #ifdef notyet | |
239 | struct iwch_cq *chp = to_iwch_cq(cq); | |
240 | struct t3_cq oldcq, newcq; | |
241 | int ret; | |
242 | ||
33718363 | 243 | PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe); |
b038ced7 SW |
244 | |
245 | /* We don't downsize... */ | |
246 | if (cqe <= cq->cqe) | |
247 | return 0; | |
248 | ||
249 | /* create new t3_cq with new size */ | |
250 | cqe = roundup_pow_of_two(cqe+1); | |
251 | newcq.size_log2 = ilog2(cqe); | |
252 | ||
253 | /* Dont allow resize to less than the current wce count */ | |
254 | if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) { | |
255 | return -ENOMEM; | |
256 | } | |
257 | ||
258 | /* Quiesce all QPs using this CQ */ | |
259 | ret = iwch_quiesce_qps(chp); | |
260 | if (ret) { | |
261 | return ret; | |
262 | } | |
263 | ||
264 | ret = cxio_create_cq(&chp->rhp->rdev, &newcq); | |
265 | if (ret) { | |
266 | return ret; | |
267 | } | |
268 | ||
269 | /* copy CQEs */ | |
270 | memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) * | |
271 | sizeof(struct t3_cqe)); | |
272 | ||
273 | /* old iwch_qp gets new t3_cq but keeps old cqid */ | |
274 | oldcq = chp->cq; | |
275 | chp->cq = newcq; | |
276 | chp->cq.cqid = oldcq.cqid; | |
277 | ||
278 | /* resize new t3_cq to update the HW context */ | |
279 | ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq); | |
280 | if (ret) { | |
281 | chp->cq = oldcq; | |
282 | return ret; | |
283 | } | |
284 | chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1; | |
285 | ||
286 | /* destroy old t3_cq */ | |
287 | oldcq.cqid = newcq.cqid; | |
288 | ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq); | |
289 | if (ret) { | |
290 | printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n", | |
33718363 | 291 | __func__, ret); |
b038ced7 SW |
292 | } |
293 | ||
294 | /* add user hooks here */ | |
295 | ||
296 | /* resume qps */ | |
297 | ret = iwch_resume_qps(chp); | |
298 | return ret; | |
299 | #else | |
300 | return -ENOSYS; | |
301 | #endif | |
302 | } | |
303 | ||
ed23a727 | 304 | static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) |
b038ced7 SW |
305 | { |
306 | struct iwch_dev *rhp; | |
307 | struct iwch_cq *chp; | |
308 | enum t3_cq_opcode cq_op; | |
309 | int err; | |
310 | unsigned long flag; | |
311 | u32 rptr; | |
312 | ||
313 | chp = to_iwch_cq(ibcq); | |
314 | rhp = chp->rhp; | |
ed23a727 | 315 | if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED) |
b038ced7 SW |
316 | cq_op = CQ_ARM_SE; |
317 | else | |
318 | cq_op = CQ_ARM_AN; | |
319 | if (chp->user_rptr_addr) { | |
320 | if (get_user(rptr, chp->user_rptr_addr)) | |
321 | return -EFAULT; | |
322 | spin_lock_irqsave(&chp->lock, flag); | |
323 | chp->cq.rptr = rptr; | |
324 | } else | |
325 | spin_lock_irqsave(&chp->lock, flag); | |
33718363 | 326 | PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr); |
b038ced7 SW |
327 | err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0); |
328 | spin_unlock_irqrestore(&chp->lock, flag); | |
ed23a727 | 329 | if (err < 0) |
b038ced7 SW |
330 | printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err, |
331 | chp->cq.cqid); | |
ed23a727 RD |
332 | if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS)) |
333 | err = 0; | |
b038ced7 SW |
334 | return err; |
335 | } | |
336 | ||
337 | static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
338 | { | |
339 | int len = vma->vm_end - vma->vm_start; | |
340 | u32 key = vma->vm_pgoff << PAGE_SHIFT; | |
341 | struct cxio_rdev *rdev_p; | |
342 | int ret = 0; | |
343 | struct iwch_mm_entry *mm; | |
344 | struct iwch_ucontext *ucontext; | |
aeb100e2 | 345 | u64 addr; |
b038ced7 | 346 | |
33718363 | 347 | PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff, |
b038ced7 SW |
348 | key, len); |
349 | ||
350 | if (vma->vm_start & (PAGE_SIZE-1)) { | |
351 | return -EINVAL; | |
352 | } | |
353 | ||
354 | rdev_p = &(to_iwch_dev(context->device)->rdev); | |
355 | ucontext = to_iwch_ucontext(context); | |
356 | ||
357 | mm = remove_mmap(ucontext, key, len); | |
358 | if (!mm) | |
359 | return -EINVAL; | |
aeb100e2 | 360 | addr = mm->addr; |
b038ced7 SW |
361 | kfree(mm); |
362 | ||
aeb100e2 SW |
363 | if ((addr >= rdev_p->rnic_info.udbell_physbase) && |
364 | (addr < (rdev_p->rnic_info.udbell_physbase + | |
b038ced7 SW |
365 | rdev_p->rnic_info.udbell_len))) { |
366 | ||
367 | /* | |
368 | * Map T3 DB register. | |
369 | */ | |
370 | if (vma->vm_flags & VM_READ) { | |
371 | return -EPERM; | |
372 | } | |
373 | ||
374 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
375 | vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; | |
376 | vma->vm_flags &= ~VM_MAYREAD; | |
377 | ret = io_remap_pfn_range(vma, vma->vm_start, | |
aeb100e2 | 378 | addr >> PAGE_SHIFT, |
b038ced7 SW |
379 | len, vma->vm_page_prot); |
380 | } else { | |
381 | ||
382 | /* | |
383 | * Map WQ or CQ contig dma memory... | |
384 | */ | |
385 | ret = remap_pfn_range(vma, vma->vm_start, | |
aeb100e2 | 386 | addr >> PAGE_SHIFT, |
b038ced7 SW |
387 | len, vma->vm_page_prot); |
388 | } | |
389 | ||
390 | return ret; | |
391 | } | |
392 | ||
393 | static int iwch_deallocate_pd(struct ib_pd *pd) | |
394 | { | |
395 | struct iwch_dev *rhp; | |
396 | struct iwch_pd *php; | |
397 | ||
398 | php = to_iwch_pd(pd); | |
399 | rhp = php->rhp; | |
33718363 | 400 | PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid); |
b038ced7 SW |
401 | cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid); |
402 | kfree(php); | |
403 | return 0; | |
404 | } | |
405 | ||
406 | static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev, | |
407 | struct ib_ucontext *context, | |
408 | struct ib_udata *udata) | |
409 | { | |
410 | struct iwch_pd *php; | |
411 | u32 pdid; | |
412 | struct iwch_dev *rhp; | |
413 | ||
33718363 | 414 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
415 | rhp = (struct iwch_dev *) ibdev; |
416 | pdid = cxio_hal_get_pdid(rhp->rdev.rscp); | |
417 | if (!pdid) | |
418 | return ERR_PTR(-EINVAL); | |
419 | php = kzalloc(sizeof(*php), GFP_KERNEL); | |
420 | if (!php) { | |
421 | cxio_hal_put_pdid(rhp->rdev.rscp, pdid); | |
422 | return ERR_PTR(-ENOMEM); | |
423 | } | |
424 | php->pdid = pdid; | |
425 | php->rhp = rhp; | |
426 | if (context) { | |
427 | if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) { | |
428 | iwch_deallocate_pd(&php->ibpd); | |
429 | return ERR_PTR(-EFAULT); | |
430 | } | |
431 | } | |
33718363 | 432 | PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php); |
b038ced7 SW |
433 | return &php->ibpd; |
434 | } | |
435 | ||
436 | static int iwch_dereg_mr(struct ib_mr *ib_mr) | |
437 | { | |
438 | struct iwch_dev *rhp; | |
439 | struct iwch_mr *mhp; | |
440 | u32 mmid; | |
441 | ||
33718363 | 442 | PDBG("%s ib_mr %p\n", __func__, ib_mr); |
b038ced7 SW |
443 | /* There can be no memory windows */ |
444 | if (atomic_read(&ib_mr->usecnt)) | |
445 | return -EINVAL; | |
446 | ||
447 | mhp = to_iwch_mr(ib_mr); | |
448 | rhp = mhp->rhp; | |
449 | mmid = mhp->attr.stag >> 8; | |
450 | cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, | |
451 | mhp->attr.pbl_addr); | |
273748cc | 452 | iwch_free_pbl(mhp); |
b038ced7 SW |
453 | remove_handle(rhp, &rhp->mmidr, mmid); |
454 | if (mhp->kva) | |
455 | kfree((void *) (unsigned long) mhp->kva); | |
f7c6a7b5 RD |
456 | if (mhp->umem) |
457 | ib_umem_release(mhp->umem); | |
33718363 | 458 | PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp); |
b038ced7 SW |
459 | kfree(mhp); |
460 | return 0; | |
461 | } | |
462 | ||
463 | static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd, | |
464 | struct ib_phys_buf *buffer_list, | |
465 | int num_phys_buf, | |
466 | int acc, | |
467 | u64 *iova_start) | |
468 | { | |
469 | __be64 *page_list; | |
470 | int shift; | |
471 | u64 total_size; | |
472 | int npages; | |
473 | struct iwch_dev *rhp; | |
474 | struct iwch_pd *php; | |
475 | struct iwch_mr *mhp; | |
476 | int ret; | |
477 | ||
33718363 | 478 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
479 | php = to_iwch_pd(pd); |
480 | rhp = php->rhp; | |
481 | ||
b038ced7 SW |
482 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); |
483 | if (!mhp) | |
484 | return ERR_PTR(-ENOMEM); | |
485 | ||
273748cc RD |
486 | mhp->rhp = rhp; |
487 | ||
b038ced7 SW |
488 | /* First check that we have enough alignment */ |
489 | if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) { | |
490 | ret = -EINVAL; | |
491 | goto err; | |
492 | } | |
493 | ||
494 | if (num_phys_buf > 1 && | |
495 | ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) { | |
496 | ret = -EINVAL; | |
497 | goto err; | |
498 | } | |
499 | ||
500 | ret = build_phys_page_list(buffer_list, num_phys_buf, iova_start, | |
501 | &total_size, &npages, &shift, &page_list); | |
502 | if (ret) | |
503 | goto err; | |
504 | ||
273748cc RD |
505 | ret = iwch_alloc_pbl(mhp, npages); |
506 | if (ret) { | |
507 | kfree(page_list); | |
508 | goto err_pbl; | |
509 | } | |
510 | ||
511 | ret = iwch_write_pbl(mhp, page_list, npages, 0); | |
512 | kfree(page_list); | |
513 | if (ret) | |
514 | goto err_pbl; | |
515 | ||
b038ced7 SW |
516 | mhp->attr.pdid = php->pdid; |
517 | mhp->attr.zbva = 0; | |
518 | ||
e64518f3 | 519 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
b038ced7 SW |
520 | mhp->attr.va_fbo = *iova_start; |
521 | mhp->attr.page_size = shift - 12; | |
522 | ||
523 | mhp->attr.len = (u32) total_size; | |
524 | mhp->attr.pbl_size = npages; | |
273748cc RD |
525 | ret = iwch_register_mem(rhp, php, mhp, shift); |
526 | if (ret) | |
527 | goto err_pbl; | |
528 | ||
b038ced7 | 529 | return &mhp->ibmr; |
273748cc RD |
530 | |
531 | err_pbl: | |
532 | iwch_free_pbl(mhp); | |
533 | ||
b038ced7 SW |
534 | err: |
535 | kfree(mhp); | |
536 | return ERR_PTR(ret); | |
537 | ||
538 | } | |
539 | ||
540 | static int iwch_reregister_phys_mem(struct ib_mr *mr, | |
541 | int mr_rereg_mask, | |
542 | struct ib_pd *pd, | |
543 | struct ib_phys_buf *buffer_list, | |
544 | int num_phys_buf, | |
545 | int acc, u64 * iova_start) | |
546 | { | |
547 | ||
548 | struct iwch_mr mh, *mhp; | |
549 | struct iwch_pd *php; | |
550 | struct iwch_dev *rhp; | |
b038ced7 SW |
551 | __be64 *page_list = NULL; |
552 | int shift = 0; | |
553 | u64 total_size; | |
554 | int npages; | |
555 | int ret; | |
556 | ||
33718363 | 557 | PDBG("%s ib_mr %p ib_pd %p\n", __func__, mr, pd); |
b038ced7 SW |
558 | |
559 | /* There can be no memory windows */ | |
560 | if (atomic_read(&mr->usecnt)) | |
561 | return -EINVAL; | |
562 | ||
563 | mhp = to_iwch_mr(mr); | |
564 | rhp = mhp->rhp; | |
565 | php = to_iwch_pd(mr->pd); | |
566 | ||
567 | /* make sure we are on the same adapter */ | |
568 | if (rhp != php->rhp) | |
569 | return -EINVAL; | |
570 | ||
b038ced7 SW |
571 | memcpy(&mh, mhp, sizeof *mhp); |
572 | ||
573 | if (mr_rereg_mask & IB_MR_REREG_PD) | |
574 | php = to_iwch_pd(pd); | |
575 | if (mr_rereg_mask & IB_MR_REREG_ACCESS) | |
e64518f3 | 576 | mh.attr.perms = iwch_ib_to_tpt_access(acc); |
d6013471 | 577 | if (mr_rereg_mask & IB_MR_REREG_TRANS) { |
b038ced7 SW |
578 | ret = build_phys_page_list(buffer_list, num_phys_buf, |
579 | iova_start, | |
580 | &total_size, &npages, | |
581 | &shift, &page_list); | |
d6013471 SW |
582 | if (ret) |
583 | return ret; | |
584 | } | |
b038ced7 | 585 | |
273748cc | 586 | ret = iwch_reregister_mem(rhp, php, &mh, shift, npages); |
b038ced7 SW |
587 | kfree(page_list); |
588 | if (ret) { | |
589 | return ret; | |
590 | } | |
591 | if (mr_rereg_mask & IB_MR_REREG_PD) | |
592 | mhp->attr.pdid = php->pdid; | |
593 | if (mr_rereg_mask & IB_MR_REREG_ACCESS) | |
e64518f3 | 594 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
b038ced7 SW |
595 | if (mr_rereg_mask & IB_MR_REREG_TRANS) { |
596 | mhp->attr.zbva = 0; | |
597 | mhp->attr.va_fbo = *iova_start; | |
598 | mhp->attr.page_size = shift - 12; | |
599 | mhp->attr.len = (u32) total_size; | |
600 | mhp->attr.pbl_size = npages; | |
601 | } | |
602 | ||
603 | return 0; | |
604 | } | |
605 | ||
606 | ||
f7c6a7b5 RD |
607 | static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, |
608 | u64 virt, int acc, struct ib_udata *udata) | |
b038ced7 SW |
609 | { |
610 | __be64 *pages; | |
611 | int shift, n, len; | |
612 | int i, j, k; | |
613 | int err = 0; | |
614 | struct ib_umem_chunk *chunk; | |
615 | struct iwch_dev *rhp; | |
616 | struct iwch_pd *php; | |
617 | struct iwch_mr *mhp; | |
618 | struct iwch_reg_user_mr_resp uresp; | |
619 | ||
33718363 | 620 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
621 | |
622 | php = to_iwch_pd(pd); | |
623 | rhp = php->rhp; | |
624 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
625 | if (!mhp) | |
626 | return ERR_PTR(-ENOMEM); | |
627 | ||
273748cc RD |
628 | mhp->rhp = rhp; |
629 | ||
cb9fbc5c | 630 | mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0); |
f7c6a7b5 RD |
631 | if (IS_ERR(mhp->umem)) { |
632 | err = PTR_ERR(mhp->umem); | |
633 | kfree(mhp); | |
634 | return ERR_PTR(err); | |
635 | } | |
636 | ||
637 | shift = ffs(mhp->umem->page_size) - 1; | |
638 | ||
b038ced7 | 639 | n = 0; |
f7c6a7b5 | 640 | list_for_each_entry(chunk, &mhp->umem->chunk_list, list) |
b038ced7 SW |
641 | n += chunk->nents; |
642 | ||
273748cc RD |
643 | err = iwch_alloc_pbl(mhp, n); |
644 | if (err) | |
645 | goto err; | |
646 | ||
647 | pages = (__be64 *) __get_free_page(GFP_KERNEL); | |
b038ced7 SW |
648 | if (!pages) { |
649 | err = -ENOMEM; | |
273748cc | 650 | goto err_pbl; |
b038ced7 SW |
651 | } |
652 | ||
b038ced7 SW |
653 | i = n = 0; |
654 | ||
f7c6a7b5 | 655 | list_for_each_entry(chunk, &mhp->umem->chunk_list, list) |
b038ced7 SW |
656 | for (j = 0; j < chunk->nmap; ++j) { |
657 | len = sg_dma_len(&chunk->page_list[j]) >> shift; | |
658 | for (k = 0; k < len; ++k) { | |
659 | pages[i++] = cpu_to_be64(sg_dma_address( | |
660 | &chunk->page_list[j]) + | |
f7c6a7b5 | 661 | mhp->umem->page_size * k); |
273748cc RD |
662 | if (i == PAGE_SIZE / sizeof *pages) { |
663 | err = iwch_write_pbl(mhp, pages, i, n); | |
664 | if (err) | |
665 | goto pbl_done; | |
666 | n += i; | |
667 | i = 0; | |
668 | } | |
b038ced7 SW |
669 | } |
670 | } | |
671 | ||
273748cc RD |
672 | if (i) |
673 | err = iwch_write_pbl(mhp, pages, i, n); | |
674 | ||
675 | pbl_done: | |
676 | free_page((unsigned long) pages); | |
677 | if (err) | |
678 | goto err_pbl; | |
679 | ||
b038ced7 SW |
680 | mhp->attr.pdid = php->pdid; |
681 | mhp->attr.zbva = 0; | |
e64518f3 | 682 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
f7c6a7b5 | 683 | mhp->attr.va_fbo = virt; |
b038ced7 | 684 | mhp->attr.page_size = shift - 12; |
f7c6a7b5 | 685 | mhp->attr.len = (u32) length; |
273748cc RD |
686 | |
687 | err = iwch_register_mem(rhp, php, mhp, shift); | |
b038ced7 | 688 | if (err) |
273748cc | 689 | goto err_pbl; |
b038ced7 | 690 | |
8176d297 | 691 | if (udata && !t3a_device(rhp)) { |
b038ced7 | 692 | uresp.pbl_addr = (mhp->attr.pbl_addr - |
273748cc | 693 | rhp->rdev.rnic_info.pbl_base) >> 3; |
33718363 | 694 | PDBG("%s user resp pbl_addr 0x%x\n", __func__, |
b038ced7 SW |
695 | uresp.pbl_addr); |
696 | ||
697 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
698 | iwch_dereg_mr(&mhp->ibmr); | |
699 | err = -EFAULT; | |
700 | goto err; | |
701 | } | |
702 | } | |
703 | ||
704 | return &mhp->ibmr; | |
705 | ||
273748cc RD |
706 | err_pbl: |
707 | iwch_free_pbl(mhp); | |
708 | ||
b038ced7 | 709 | err: |
f7c6a7b5 | 710 | ib_umem_release(mhp->umem); |
b038ced7 SW |
711 | kfree(mhp); |
712 | return ERR_PTR(err); | |
713 | } | |
714 | ||
715 | static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc) | |
716 | { | |
717 | struct ib_phys_buf bl; | |
718 | u64 kva; | |
719 | struct ib_mr *ibmr; | |
720 | ||
33718363 | 721 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
722 | |
723 | /* | |
724 | * T3 only supports 32 bits of size. | |
725 | */ | |
726 | bl.size = 0xffffffff; | |
727 | bl.addr = 0; | |
728 | kva = 0; | |
729 | ibmr = iwch_register_phys_mem(pd, &bl, 1, acc, &kva); | |
730 | return ibmr; | |
731 | } | |
732 | ||
733 | static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd) | |
734 | { | |
735 | struct iwch_dev *rhp; | |
736 | struct iwch_pd *php; | |
737 | struct iwch_mw *mhp; | |
738 | u32 mmid; | |
739 | u32 stag = 0; | |
740 | int ret; | |
741 | ||
742 | php = to_iwch_pd(pd); | |
743 | rhp = php->rhp; | |
744 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
745 | if (!mhp) | |
746 | return ERR_PTR(-ENOMEM); | |
747 | ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid); | |
748 | if (ret) { | |
749 | kfree(mhp); | |
750 | return ERR_PTR(ret); | |
751 | } | |
752 | mhp->rhp = rhp; | |
753 | mhp->attr.pdid = php->pdid; | |
754 | mhp->attr.type = TPT_MW; | |
755 | mhp->attr.stag = stag; | |
756 | mmid = (stag) >> 8; | |
70fe1796 | 757 | mhp->ibmw.rkey = stag; |
13a23933 SW |
758 | if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) { |
759 | cxio_deallocate_window(&rhp->rdev, mhp->attr.stag); | |
760 | kfree(mhp); | |
761 | return ERR_PTR(-ENOMEM); | |
762 | } | |
33718363 | 763 | PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); |
b038ced7 SW |
764 | return &(mhp->ibmw); |
765 | } | |
766 | ||
767 | static int iwch_dealloc_mw(struct ib_mw *mw) | |
768 | { | |
769 | struct iwch_dev *rhp; | |
770 | struct iwch_mw *mhp; | |
771 | u32 mmid; | |
772 | ||
773 | mhp = to_iwch_mw(mw); | |
774 | rhp = mhp->rhp; | |
775 | mmid = (mw->rkey) >> 8; | |
776 | cxio_deallocate_window(&rhp->rdev, mhp->attr.stag); | |
777 | remove_handle(rhp, &rhp->mmidr, mmid); | |
778 | kfree(mhp); | |
33718363 | 779 | PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp); |
b038ced7 SW |
780 | return 0; |
781 | } | |
782 | ||
e7e55829 SW |
783 | static struct ib_mr *iwch_alloc_fast_reg_mr(struct ib_pd *pd, int pbl_depth) |
784 | { | |
785 | struct iwch_dev *rhp; | |
786 | struct iwch_pd *php; | |
787 | struct iwch_mr *mhp; | |
788 | u32 mmid; | |
789 | u32 stag = 0; | |
13a23933 | 790 | int ret = 0; |
e7e55829 SW |
791 | |
792 | php = to_iwch_pd(pd); | |
793 | rhp = php->rhp; | |
794 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
795 | if (!mhp) | |
13a23933 | 796 | goto err; |
e7e55829 SW |
797 | |
798 | mhp->rhp = rhp; | |
799 | ret = iwch_alloc_pbl(mhp, pbl_depth); | |
13a23933 SW |
800 | if (ret) |
801 | goto err1; | |
e7e55829 SW |
802 | mhp->attr.pbl_size = pbl_depth; |
803 | ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid, | |
804 | mhp->attr.pbl_size, mhp->attr.pbl_addr); | |
13a23933 SW |
805 | if (ret) |
806 | goto err2; | |
e7e55829 SW |
807 | mhp->attr.pdid = php->pdid; |
808 | mhp->attr.type = TPT_NON_SHARED_MR; | |
809 | mhp->attr.stag = stag; | |
810 | mhp->attr.state = 1; | |
811 | mmid = (stag) >> 8; | |
812 | mhp->ibmr.rkey = mhp->ibmr.lkey = stag; | |
13a23933 SW |
813 | if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) |
814 | goto err3; | |
815 | ||
e7e55829 SW |
816 | PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); |
817 | return &(mhp->ibmr); | |
13a23933 SW |
818 | err3: |
819 | cxio_dereg_mem(&rhp->rdev, stag, mhp->attr.pbl_size, | |
820 | mhp->attr.pbl_addr); | |
821 | err2: | |
822 | iwch_free_pbl(mhp); | |
823 | err1: | |
824 | kfree(mhp); | |
825 | err: | |
826 | return ERR_PTR(ret); | |
e7e55829 SW |
827 | } |
828 | ||
829 | static struct ib_fast_reg_page_list *iwch_alloc_fastreg_pbl( | |
830 | struct ib_device *device, | |
831 | int page_list_len) | |
832 | { | |
833 | struct ib_fast_reg_page_list *page_list; | |
834 | ||
835 | page_list = kmalloc(sizeof *page_list + page_list_len * sizeof(u64), | |
836 | GFP_KERNEL); | |
837 | if (!page_list) | |
838 | return ERR_PTR(-ENOMEM); | |
839 | ||
840 | page_list->page_list = (u64 *)(page_list + 1); | |
841 | page_list->max_page_list_len = page_list_len; | |
842 | ||
843 | return page_list; | |
844 | } | |
845 | ||
846 | static void iwch_free_fastreg_pbl(struct ib_fast_reg_page_list *page_list) | |
847 | { | |
848 | kfree(page_list); | |
849 | } | |
850 | ||
b038ced7 SW |
851 | static int iwch_destroy_qp(struct ib_qp *ib_qp) |
852 | { | |
853 | struct iwch_dev *rhp; | |
854 | struct iwch_qp *qhp; | |
855 | struct iwch_qp_attributes attrs; | |
856 | struct iwch_ucontext *ucontext; | |
857 | ||
858 | qhp = to_iwch_qp(ib_qp); | |
859 | rhp = qhp->rhp; | |
860 | ||
2df50da0 SW |
861 | attrs.next_state = IWCH_QP_STATE_ERROR; |
862 | iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0); | |
b038ced7 SW |
863 | wait_event(qhp->wait, !qhp->ep); |
864 | ||
865 | remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid); | |
866 | ||
867 | atomic_dec(&qhp->refcnt); | |
868 | wait_event(qhp->wait, !atomic_read(&qhp->refcnt)); | |
869 | ||
870 | ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context) | |
871 | : NULL; | |
872 | cxio_destroy_qp(&rhp->rdev, &qhp->wq, | |
873 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx); | |
874 | ||
33718363 | 875 | PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__, |
b038ced7 SW |
876 | ib_qp, qhp->wq.qpid, qhp); |
877 | kfree(qhp); | |
878 | return 0; | |
879 | } | |
880 | ||
881 | static struct ib_qp *iwch_create_qp(struct ib_pd *pd, | |
882 | struct ib_qp_init_attr *attrs, | |
883 | struct ib_udata *udata) | |
884 | { | |
885 | struct iwch_dev *rhp; | |
886 | struct iwch_qp *qhp; | |
887 | struct iwch_pd *php; | |
888 | struct iwch_cq *schp; | |
889 | struct iwch_cq *rchp; | |
890 | struct iwch_create_qp_resp uresp; | |
891 | int wqsize, sqsize, rqsize; | |
892 | struct iwch_ucontext *ucontext; | |
893 | ||
33718363 | 894 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
895 | if (attrs->qp_type != IB_QPT_RC) |
896 | return ERR_PTR(-EINVAL); | |
897 | php = to_iwch_pd(pd); | |
898 | rhp = php->rhp; | |
899 | schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid); | |
900 | rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid); | |
901 | if (!schp || !rchp) | |
902 | return ERR_PTR(-EINVAL); | |
903 | ||
904 | /* The RQT size must be # of entries + 1 rounded up to a power of two */ | |
905 | rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr); | |
906 | if (rqsize == attrs->cap.max_recv_wr) | |
907 | rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1); | |
908 | ||
909 | /* T3 doesn't support RQT depth < 16 */ | |
910 | if (rqsize < 16) | |
911 | rqsize = 16; | |
912 | ||
913 | if (rqsize > T3_MAX_RQ_SIZE) | |
914 | return ERR_PTR(-EINVAL); | |
915 | ||
1860cdf8 SW |
916 | if (attrs->cap.max_inline_data > T3_MAX_INLINE) |
917 | return ERR_PTR(-EINVAL); | |
918 | ||
b038ced7 SW |
919 | /* |
920 | * NOTE: The SQ and total WQ sizes don't need to be | |
921 | * a power of two. However, all the code assumes | |
922 | * they are. EG: Q_FREECNT() and friends. | |
923 | */ | |
924 | sqsize = roundup_pow_of_two(attrs->cap.max_send_wr); | |
925 | wqsize = roundup_pow_of_two(rqsize + sqsize); | |
e7e55829 SW |
926 | |
927 | /* | |
928 | * Kernel users need more wq space for fastreg WRs which can take | |
929 | * 2 WR fragments. | |
930 | */ | |
931 | ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL; | |
932 | if (!ucontext && wqsize < (rqsize + (2 * sqsize))) | |
933 | wqsize = roundup_pow_of_two(rqsize + | |
934 | roundup_pow_of_two(attrs->cap.max_send_wr * 2)); | |
33718363 | 935 | PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__, |
b038ced7 SW |
936 | wqsize, sqsize, rqsize); |
937 | qhp = kzalloc(sizeof(*qhp), GFP_KERNEL); | |
938 | if (!qhp) | |
939 | return ERR_PTR(-ENOMEM); | |
940 | qhp->wq.size_log2 = ilog2(wqsize); | |
941 | qhp->wq.rq_size_log2 = ilog2(rqsize); | |
942 | qhp->wq.sq_size_log2 = ilog2(sqsize); | |
b038ced7 SW |
943 | if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq, |
944 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) { | |
945 | kfree(qhp); | |
946 | return ERR_PTR(-ENOMEM); | |
947 | } | |
1bab74e6 | 948 | |
b038ced7 SW |
949 | attrs->cap.max_recv_wr = rqsize - 1; |
950 | attrs->cap.max_send_wr = sqsize; | |
1bab74e6 JM |
951 | attrs->cap.max_inline_data = T3_MAX_INLINE; |
952 | ||
b038ced7 SW |
953 | qhp->rhp = rhp; |
954 | qhp->attr.pd = php->pdid; | |
955 | qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid; | |
956 | qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid; | |
957 | qhp->attr.sq_num_entries = attrs->cap.max_send_wr; | |
958 | qhp->attr.rq_num_entries = attrs->cap.max_recv_wr; | |
959 | qhp->attr.sq_max_sges = attrs->cap.max_send_sge; | |
960 | qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge; | |
961 | qhp->attr.rq_max_sges = attrs->cap.max_recv_sge; | |
962 | qhp->attr.state = IWCH_QP_STATE_IDLE; | |
963 | qhp->attr.next_state = IWCH_QP_STATE_IDLE; | |
964 | ||
965 | /* | |
966 | * XXX - These don't get passed in from the openib user | |
967 | * at create time. The CM sets them via a QP modify. | |
968 | * Need to fix... I think the CM should | |
969 | */ | |
970 | qhp->attr.enable_rdma_read = 1; | |
971 | qhp->attr.enable_rdma_write = 1; | |
972 | qhp->attr.enable_bind = 1; | |
973 | qhp->attr.max_ord = 1; | |
974 | qhp->attr.max_ird = 1; | |
975 | ||
976 | spin_lock_init(&qhp->lock); | |
977 | init_waitqueue_head(&qhp->wait); | |
978 | atomic_set(&qhp->refcnt, 1); | |
13a23933 SW |
979 | |
980 | if (insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid)) { | |
981 | cxio_destroy_qp(&rhp->rdev, &qhp->wq, | |
982 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx); | |
983 | kfree(qhp); | |
984 | return ERR_PTR(-ENOMEM); | |
985 | } | |
b038ced7 SW |
986 | |
987 | if (udata) { | |
988 | ||
989 | struct iwch_mm_entry *mm1, *mm2; | |
990 | ||
991 | mm1 = kmalloc(sizeof *mm1, GFP_KERNEL); | |
992 | if (!mm1) { | |
993 | iwch_destroy_qp(&qhp->ibqp); | |
994 | return ERR_PTR(-ENOMEM); | |
995 | } | |
996 | ||
997 | mm2 = kmalloc(sizeof *mm2, GFP_KERNEL); | |
998 | if (!mm2) { | |
999 | kfree(mm1); | |
1000 | iwch_destroy_qp(&qhp->ibqp); | |
1001 | return ERR_PTR(-ENOMEM); | |
1002 | } | |
1003 | ||
1004 | uresp.qpid = qhp->wq.qpid; | |
1005 | uresp.size_log2 = qhp->wq.size_log2; | |
1006 | uresp.sq_size_log2 = qhp->wq.sq_size_log2; | |
1007 | uresp.rq_size_log2 = qhp->wq.rq_size_log2; | |
1008 | spin_lock(&ucontext->mmap_lock); | |
1009 | uresp.key = ucontext->key; | |
1010 | ucontext->key += PAGE_SIZE; | |
1011 | uresp.db_key = ucontext->key; | |
1012 | ucontext->key += PAGE_SIZE; | |
1013 | spin_unlock(&ucontext->mmap_lock); | |
1014 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
1015 | kfree(mm1); | |
1016 | kfree(mm2); | |
1017 | iwch_destroy_qp(&qhp->ibqp); | |
1018 | return ERR_PTR(-EFAULT); | |
1019 | } | |
1020 | mm1->key = uresp.key; | |
1021 | mm1->addr = virt_to_phys(qhp->wq.queue); | |
1022 | mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr)); | |
1023 | insert_mmap(ucontext, mm1); | |
1024 | mm2->key = uresp.db_key; | |
1025 | mm2->addr = qhp->wq.udb & PAGE_MASK; | |
1026 | mm2->len = PAGE_SIZE; | |
1027 | insert_mmap(ucontext, mm2); | |
1028 | } | |
1029 | qhp->ibqp.qp_num = qhp->wq.qpid; | |
1030 | init_timer(&(qhp->timer)); | |
1031 | PDBG("%s sq_num_entries %d, rq_num_entries %d " | |
4ab928f6 | 1032 | "qpid 0x%0x qhp %p dma_addr 0x%llx size %d rq_addr 0x%x\n", |
33718363 | 1033 | __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries, |
b038ced7 | 1034 | qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr, |
4ab928f6 | 1035 | 1 << qhp->wq.size_log2, qhp->wq.rq_addr); |
b038ced7 SW |
1036 | return &qhp->ibqp; |
1037 | } | |
1038 | ||
1039 | static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
1040 | int attr_mask, struct ib_udata *udata) | |
1041 | { | |
1042 | struct iwch_dev *rhp; | |
1043 | struct iwch_qp *qhp; | |
1044 | enum iwch_qp_attr_mask mask = 0; | |
1045 | struct iwch_qp_attributes attrs; | |
1046 | ||
33718363 | 1047 | PDBG("%s ib_qp %p\n", __func__, ibqp); |
b038ced7 SW |
1048 | |
1049 | /* iwarp does not support the RTR state */ | |
1050 | if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR)) | |
1051 | attr_mask &= ~IB_QP_STATE; | |
1052 | ||
1053 | /* Make sure we still have something left to do */ | |
1054 | if (!attr_mask) | |
1055 | return 0; | |
1056 | ||
1057 | memset(&attrs, 0, sizeof attrs); | |
1058 | qhp = to_iwch_qp(ibqp); | |
1059 | rhp = qhp->rhp; | |
1060 | ||
1061 | attrs.next_state = iwch_convert_state(attr->qp_state); | |
1062 | attrs.enable_rdma_read = (attr->qp_access_flags & | |
1063 | IB_ACCESS_REMOTE_READ) ? 1 : 0; | |
1064 | attrs.enable_rdma_write = (attr->qp_access_flags & | |
1065 | IB_ACCESS_REMOTE_WRITE) ? 1 : 0; | |
1066 | attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0; | |
1067 | ||
1068 | ||
1069 | mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0; | |
1070 | mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ? | |
1071 | (IWCH_QP_ATTR_ENABLE_RDMA_READ | | |
1072 | IWCH_QP_ATTR_ENABLE_RDMA_WRITE | | |
1073 | IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0; | |
1074 | ||
1075 | return iwch_modify_qp(rhp, qhp, mask, &attrs, 0); | |
1076 | } | |
1077 | ||
1078 | void iwch_qp_add_ref(struct ib_qp *qp) | |
1079 | { | |
33718363 | 1080 | PDBG("%s ib_qp %p\n", __func__, qp); |
b038ced7 SW |
1081 | atomic_inc(&(to_iwch_qp(qp)->refcnt)); |
1082 | } | |
1083 | ||
1084 | void iwch_qp_rem_ref(struct ib_qp *qp) | |
1085 | { | |
33718363 | 1086 | PDBG("%s ib_qp %p\n", __func__, qp); |
b038ced7 SW |
1087 | if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt))) |
1088 | wake_up(&(to_iwch_qp(qp)->wait)); | |
1089 | } | |
1090 | ||
2b540355 | 1091 | static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn) |
b038ced7 | 1092 | { |
33718363 | 1093 | PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn); |
b038ced7 SW |
1094 | return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn); |
1095 | } | |
1096 | ||
1097 | ||
1098 | static int iwch_query_pkey(struct ib_device *ibdev, | |
1099 | u8 port, u16 index, u16 * pkey) | |
1100 | { | |
33718363 | 1101 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
1102 | *pkey = 0; |
1103 | return 0; | |
1104 | } | |
1105 | ||
1106 | static int iwch_query_gid(struct ib_device *ibdev, u8 port, | |
1107 | int index, union ib_gid *gid) | |
1108 | { | |
1109 | struct iwch_dev *dev; | |
1110 | ||
1111 | PDBG("%s ibdev %p, port %d, index %d, gid %p\n", | |
33718363 | 1112 | __func__, ibdev, port, index, gid); |
b038ced7 SW |
1113 | dev = to_iwch_dev(ibdev); |
1114 | BUG_ON(port == 0 || port > 2); | |
1115 | memset(&(gid->raw[0]), 0, sizeof(gid->raw)); | |
1116 | memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6); | |
1117 | return 0; | |
1118 | } | |
1119 | ||
97d1cc80 SW |
1120 | static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev) |
1121 | { | |
1122 | struct ethtool_drvinfo info; | |
1123 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; | |
1124 | char *cp, *next; | |
1125 | unsigned fw_maj, fw_min, fw_mic; | |
1126 | ||
97d1cc80 | 1127 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
97d1cc80 SW |
1128 | |
1129 | next = info.fw_version + 1; | |
1130 | cp = strsep(&next, "."); | |
1131 | sscanf(cp, "%i", &fw_maj); | |
1132 | cp = strsep(&next, "."); | |
1133 | sscanf(cp, "%i", &fw_min); | |
1134 | cp = strsep(&next, "."); | |
1135 | sscanf(cp, "%i", &fw_mic); | |
1136 | ||
1137 | return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) | | |
1138 | (fw_mic & 0xffff); | |
1139 | } | |
1140 | ||
b038ced7 SW |
1141 | static int iwch_query_device(struct ib_device *ibdev, |
1142 | struct ib_device_attr *props) | |
1143 | { | |
1144 | ||
1145 | struct iwch_dev *dev; | |
33718363 | 1146 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
1147 | |
1148 | dev = to_iwch_dev(ibdev); | |
1149 | memset(props, 0, sizeof *props); | |
1150 | memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); | |
97d1cc80 SW |
1151 | props->hw_ver = dev->rdev.t3cdev_p->type; |
1152 | props->fw_ver = fw_vers_string_to_u64(dev); | |
b038ced7 | 1153 | props->device_cap_flags = dev->device_cap_flags; |
52c8084b | 1154 | props->page_size_cap = dev->attr.mem_pgsizes_bitmask; |
b038ced7 SW |
1155 | props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor; |
1156 | props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device; | |
ccaf10d0 | 1157 | props->max_mr_size = dev->attr.max_mr_size; |
b038ced7 SW |
1158 | props->max_qp = dev->attr.max_qps; |
1159 | props->max_qp_wr = dev->attr.max_wrs; | |
1160 | props->max_sge = dev->attr.max_sge_per_wr; | |
1161 | props->max_sge_rd = 1; | |
1162 | props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp; | |
9a766649 | 1163 | props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp; |
b038ced7 SW |
1164 | props->max_cq = dev->attr.max_cqs; |
1165 | props->max_cqe = dev->attr.max_cqes_per_cq; | |
1166 | props->max_mr = dev->attr.max_mem_regs; | |
1167 | props->max_pd = dev->attr.max_pds; | |
1168 | props->local_ca_ack_delay = 0; | |
e7e55829 | 1169 | props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH; |
b038ced7 SW |
1170 | |
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | static int iwch_query_port(struct ib_device *ibdev, | |
1175 | u8 port, struct ib_port_attr *props) | |
1176 | { | |
7ab1a2b3 SW |
1177 | struct iwch_dev *dev; |
1178 | struct net_device *netdev; | |
1179 | struct in_device *inetdev; | |
1180 | ||
33718363 | 1181 | PDBG("%s ibdev %p\n", __func__, ibdev); |
c752c782 | 1182 | |
7ab1a2b3 SW |
1183 | dev = to_iwch_dev(ibdev); |
1184 | netdev = dev->rdev.port_info.lldevs[port-1]; | |
1185 | ||
c752c782 | 1186 | memset(props, 0, sizeof(struct ib_port_attr)); |
b038ced7 | 1187 | props->max_mtu = IB_MTU_4096; |
7ab1a2b3 SW |
1188 | if (netdev->mtu >= 4096) |
1189 | props->active_mtu = IB_MTU_4096; | |
1190 | else if (netdev->mtu >= 2048) | |
1191 | props->active_mtu = IB_MTU_2048; | |
1192 | else if (netdev->mtu >= 1024) | |
1193 | props->active_mtu = IB_MTU_1024; | |
1194 | else if (netdev->mtu >= 512) | |
1195 | props->active_mtu = IB_MTU_512; | |
1196 | else | |
1197 | props->active_mtu = IB_MTU_256; | |
1198 | ||
1199 | if (!netif_carrier_ok(netdev)) | |
1200 | props->state = IB_PORT_DOWN; | |
1201 | else { | |
1202 | inetdev = in_dev_get(netdev); | |
e5da4ed8 SW |
1203 | if (inetdev) { |
1204 | if (inetdev->ifa_list) | |
1205 | props->state = IB_PORT_ACTIVE; | |
1206 | else | |
1207 | props->state = IB_PORT_INIT; | |
1208 | in_dev_put(inetdev); | |
1209 | } else | |
7ab1a2b3 | 1210 | props->state = IB_PORT_INIT; |
7ab1a2b3 SW |
1211 | } |
1212 | ||
b038ced7 SW |
1213 | props->port_cap_flags = |
1214 | IB_PORT_CM_SUP | | |
1215 | IB_PORT_SNMP_TUNNEL_SUP | | |
1216 | IB_PORT_REINIT_SUP | | |
1217 | IB_PORT_DEVICE_MGMT_SUP | | |
1218 | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; | |
1219 | props->gid_tbl_len = 1; | |
1220 | props->pkey_tbl_len = 1; | |
b038ced7 SW |
1221 | props->active_width = 2; |
1222 | props->active_speed = 2; | |
1223 | props->max_msg_sz = -1; | |
1224 | ||
1225 | return 0; | |
1226 | } | |
1227 | ||
f4e91eb4 TJ |
1228 | static ssize_t show_rev(struct device *dev, struct device_attribute *attr, |
1229 | char *buf) | |
b038ced7 | 1230 | { |
f4e91eb4 TJ |
1231 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1232 | ibdev.dev); | |
1233 | PDBG("%s dev 0x%p\n", __func__, dev); | |
1234 | return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type); | |
b038ced7 SW |
1235 | } |
1236 | ||
f4e91eb4 | 1237 | static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, char *buf) |
b038ced7 | 1238 | { |
f4e91eb4 TJ |
1239 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1240 | ibdev.dev); | |
b038ced7 | 1241 | struct ethtool_drvinfo info; |
f4e91eb4 | 1242 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
b038ced7 | 1243 | |
f4e91eb4 | 1244 | PDBG("%s dev 0x%p\n", __func__, dev); |
b038ced7 SW |
1245 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
1246 | return sprintf(buf, "%s\n", info.fw_version); | |
1247 | } | |
1248 | ||
f4e91eb4 TJ |
1249 | static ssize_t show_hca(struct device *dev, struct device_attribute *attr, |
1250 | char *buf) | |
b038ced7 | 1251 | { |
f4e91eb4 TJ |
1252 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1253 | ibdev.dev); | |
b038ced7 | 1254 | struct ethtool_drvinfo info; |
f4e91eb4 | 1255 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
b038ced7 | 1256 | |
f4e91eb4 | 1257 | PDBG("%s dev 0x%p\n", __func__, dev); |
b038ced7 SW |
1258 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
1259 | return sprintf(buf, "%s\n", info.driver); | |
1260 | } | |
1261 | ||
f4e91eb4 TJ |
1262 | static ssize_t show_board(struct device *dev, struct device_attribute *attr, |
1263 | char *buf) | |
b038ced7 | 1264 | { |
f4e91eb4 TJ |
1265 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1266 | ibdev.dev); | |
1267 | PDBG("%s dev 0x%p\n", __func__, dev); | |
1268 | return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor, | |
1269 | iwch_dev->rdev.rnic_info.pdev->device); | |
b038ced7 SW |
1270 | } |
1271 | ||
14cc180f SW |
1272 | static int iwch_get_mib(struct ib_device *ibdev, |
1273 | union rdma_protocol_stats *stats) | |
1274 | { | |
1275 | struct iwch_dev *dev; | |
1276 | struct tp_mib_stats m; | |
1277 | int ret; | |
1278 | ||
1279 | PDBG("%s ibdev %p\n", __func__, ibdev); | |
1280 | dev = to_iwch_dev(ibdev); | |
1281 | ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m); | |
1282 | if (ret) | |
1283 | return -ENOSYS; | |
1284 | ||
1285 | memset(stats, 0, sizeof *stats); | |
1286 | stats->iw.ipInReceives = ((u64) m.ipInReceive_hi << 32) + | |
1287 | m.ipInReceive_lo; | |
1288 | stats->iw.ipInHdrErrors = ((u64) m.ipInHdrErrors_hi << 32) + | |
1289 | m.ipInHdrErrors_lo; | |
1290 | stats->iw.ipInAddrErrors = ((u64) m.ipInAddrErrors_hi << 32) + | |
1291 | m.ipInAddrErrors_lo; | |
1292 | stats->iw.ipInUnknownProtos = ((u64) m.ipInUnknownProtos_hi << 32) + | |
1293 | m.ipInUnknownProtos_lo; | |
1294 | stats->iw.ipInDiscards = ((u64) m.ipInDiscards_hi << 32) + | |
1295 | m.ipInDiscards_lo; | |
1296 | stats->iw.ipInDelivers = ((u64) m.ipInDelivers_hi << 32) + | |
1297 | m.ipInDelivers_lo; | |
1298 | stats->iw.ipOutRequests = ((u64) m.ipOutRequests_hi << 32) + | |
1299 | m.ipOutRequests_lo; | |
1300 | stats->iw.ipOutDiscards = ((u64) m.ipOutDiscards_hi << 32) + | |
1301 | m.ipOutDiscards_lo; | |
1302 | stats->iw.ipOutNoRoutes = ((u64) m.ipOutNoRoutes_hi << 32) + | |
1303 | m.ipOutNoRoutes_lo; | |
1304 | stats->iw.ipReasmTimeout = (u64) m.ipReasmTimeout; | |
1305 | stats->iw.ipReasmReqds = (u64) m.ipReasmReqds; | |
1306 | stats->iw.ipReasmOKs = (u64) m.ipReasmOKs; | |
1307 | stats->iw.ipReasmFails = (u64) m.ipReasmFails; | |
1308 | stats->iw.tcpActiveOpens = (u64) m.tcpActiveOpens; | |
1309 | stats->iw.tcpPassiveOpens = (u64) m.tcpPassiveOpens; | |
1310 | stats->iw.tcpAttemptFails = (u64) m.tcpAttemptFails; | |
1311 | stats->iw.tcpEstabResets = (u64) m.tcpEstabResets; | |
1312 | stats->iw.tcpOutRsts = (u64) m.tcpOutRsts; | |
1313 | stats->iw.tcpCurrEstab = (u64) m.tcpCurrEstab; | |
1314 | stats->iw.tcpInSegs = ((u64) m.tcpInSegs_hi << 32) + | |
1315 | m.tcpInSegs_lo; | |
1316 | stats->iw.tcpOutSegs = ((u64) m.tcpOutSegs_hi << 32) + | |
1317 | m.tcpOutSegs_lo; | |
1318 | stats->iw.tcpRetransSegs = ((u64) m.tcpRetransSeg_hi << 32) + | |
1319 | m.tcpRetransSeg_lo; | |
1320 | stats->iw.tcpInErrs = ((u64) m.tcpInErrs_hi << 32) + | |
1321 | m.tcpInErrs_lo; | |
1322 | stats->iw.tcpRtoMin = (u64) m.tcpRtoMin; | |
1323 | stats->iw.tcpRtoMax = (u64) m.tcpRtoMax; | |
1324 | return 0; | |
1325 | } | |
1326 | ||
f4e91eb4 TJ |
1327 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
1328 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
1329 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
1330 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
b038ced7 | 1331 | |
f4e91eb4 TJ |
1332 | static struct device_attribute *iwch_class_attributes[] = { |
1333 | &dev_attr_hw_rev, | |
1334 | &dev_attr_fw_ver, | |
1335 | &dev_attr_hca_type, | |
14cc180f | 1336 | &dev_attr_board_id, |
b038ced7 SW |
1337 | }; |
1338 | ||
1339 | int iwch_register_device(struct iwch_dev *dev) | |
1340 | { | |
1341 | int ret; | |
1342 | int i; | |
1343 | ||
33718363 | 1344 | PDBG("%s iwch_dev %p\n", __func__, dev); |
b038ced7 SW |
1345 | strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX); |
1346 | memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); | |
1347 | memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); | |
1348 | dev->ibdev.owner = THIS_MODULE; | |
be43324d SW |
1349 | dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | |
1350 | IB_DEVICE_MEM_WINDOW | | |
1351 | IB_DEVICE_MEM_MGT_EXTENSIONS; | |
96f15c03 SW |
1352 | |
1353 | /* cxgb3 supports STag 0. */ | |
1354 | dev->ibdev.local_dma_lkey = 0; | |
b038ced7 SW |
1355 | |
1356 | dev->ibdev.uverbs_cmd_mask = | |
1357 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1358 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1359 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1360 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1361 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1362 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1363 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1364 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1365 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
1366 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
1367 | (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | | |
1368 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
1369 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
1370 | (1ull << IB_USER_VERBS_CMD_POLL_CQ) | | |
1371 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
1372 | (1ull << IB_USER_VERBS_CMD_POST_SEND) | | |
1373 | (1ull << IB_USER_VERBS_CMD_POST_RECV); | |
1374 | dev->ibdev.node_type = RDMA_NODE_RNIC; | |
1375 | memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC)); | |
1376 | dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports; | |
f4fd0b22 | 1377 | dev->ibdev.num_comp_vectors = 1; |
b038ced7 | 1378 | dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev); |
b038ced7 SW |
1379 | dev->ibdev.query_device = iwch_query_device; |
1380 | dev->ibdev.query_port = iwch_query_port; | |
1381 | dev->ibdev.modify_port = iwch_modify_port; | |
1382 | dev->ibdev.query_pkey = iwch_query_pkey; | |
1383 | dev->ibdev.query_gid = iwch_query_gid; | |
1384 | dev->ibdev.alloc_ucontext = iwch_alloc_ucontext; | |
1385 | dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext; | |
1386 | dev->ibdev.mmap = iwch_mmap; | |
1387 | dev->ibdev.alloc_pd = iwch_allocate_pd; | |
1388 | dev->ibdev.dealloc_pd = iwch_deallocate_pd; | |
1389 | dev->ibdev.create_ah = iwch_ah_create; | |
1390 | dev->ibdev.destroy_ah = iwch_ah_destroy; | |
1391 | dev->ibdev.create_qp = iwch_create_qp; | |
1392 | dev->ibdev.modify_qp = iwch_ib_modify_qp; | |
1393 | dev->ibdev.destroy_qp = iwch_destroy_qp; | |
1394 | dev->ibdev.create_cq = iwch_create_cq; | |
1395 | dev->ibdev.destroy_cq = iwch_destroy_cq; | |
1396 | dev->ibdev.resize_cq = iwch_resize_cq; | |
1397 | dev->ibdev.poll_cq = iwch_poll_cq; | |
1398 | dev->ibdev.get_dma_mr = iwch_get_dma_mr; | |
1399 | dev->ibdev.reg_phys_mr = iwch_register_phys_mem; | |
1400 | dev->ibdev.rereg_phys_mr = iwch_reregister_phys_mem; | |
1401 | dev->ibdev.reg_user_mr = iwch_reg_user_mr; | |
1402 | dev->ibdev.dereg_mr = iwch_dereg_mr; | |
1403 | dev->ibdev.alloc_mw = iwch_alloc_mw; | |
1404 | dev->ibdev.bind_mw = iwch_bind_mw; | |
1405 | dev->ibdev.dealloc_mw = iwch_dealloc_mw; | |
e7e55829 SW |
1406 | dev->ibdev.alloc_fast_reg_mr = iwch_alloc_fast_reg_mr; |
1407 | dev->ibdev.alloc_fast_reg_page_list = iwch_alloc_fastreg_pbl; | |
1408 | dev->ibdev.free_fast_reg_page_list = iwch_free_fastreg_pbl; | |
b038ced7 SW |
1409 | dev->ibdev.attach_mcast = iwch_multicast_attach; |
1410 | dev->ibdev.detach_mcast = iwch_multicast_detach; | |
1411 | dev->ibdev.process_mad = iwch_process_mad; | |
b038ced7 SW |
1412 | dev->ibdev.req_notify_cq = iwch_arm_cq; |
1413 | dev->ibdev.post_send = iwch_post_send; | |
1414 | dev->ibdev.post_recv = iwch_post_receive; | |
14cc180f | 1415 | dev->ibdev.get_protocol_stats = iwch_get_mib; |
b038ced7 | 1416 | |
6abb6ea8 WC |
1417 | dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); |
1418 | if (!dev->ibdev.iwcm) | |
1419 | return -ENOMEM; | |
1420 | ||
b038ced7 SW |
1421 | dev->ibdev.iwcm->connect = iwch_connect; |
1422 | dev->ibdev.iwcm->accept = iwch_accept_cr; | |
1423 | dev->ibdev.iwcm->reject = iwch_reject_cr; | |
1424 | dev->ibdev.iwcm->create_listen = iwch_create_listen; | |
1425 | dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen; | |
1426 | dev->ibdev.iwcm->add_ref = iwch_qp_add_ref; | |
1427 | dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref; | |
1428 | dev->ibdev.iwcm->get_qp = iwch_get_qp; | |
1429 | ||
1430 | ret = ib_register_device(&dev->ibdev); | |
1431 | if (ret) | |
1432 | goto bail1; | |
1433 | ||
1434 | for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) { | |
f4e91eb4 TJ |
1435 | ret = device_create_file(&dev->ibdev.dev, |
1436 | iwch_class_attributes[i]); | |
b038ced7 SW |
1437 | if (ret) { |
1438 | goto bail2; | |
1439 | } | |
1440 | } | |
1441 | return 0; | |
1442 | bail2: | |
1443 | ib_unregister_device(&dev->ibdev); | |
1444 | bail1: | |
3793d2fc | 1445 | kfree(dev->ibdev.iwcm); |
b038ced7 SW |
1446 | return ret; |
1447 | } | |
1448 | ||
1449 | void iwch_unregister_device(struct iwch_dev *dev) | |
1450 | { | |
1451 | int i; | |
1452 | ||
33718363 | 1453 | PDBG("%s iwch_dev %p\n", __func__, dev); |
b038ced7 | 1454 | for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) |
f4e91eb4 TJ |
1455 | device_remove_file(&dev->ibdev.dev, |
1456 | iwch_class_attributes[i]); | |
b038ced7 | 1457 | ib_unregister_device(&dev->ibdev); |
3793d2fc | 1458 | kfree(dev->ibdev.iwcm); |
b038ced7 SW |
1459 | return; |
1460 | } |