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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> |
5a0e3ad6 | 45 | #include <linux/slab.h> |
b038ced7 SW |
46 | |
47 | #include <asm/io.h> | |
48 | #include <asm/irq.h> | |
49 | #include <asm/byteorder.h> | |
50 | ||
51 | #include <rdma/iw_cm.h> | |
52 | #include <rdma/ib_verbs.h> | |
53 | #include <rdma/ib_smi.h> | |
f7c6a7b5 | 54 | #include <rdma/ib_umem.h> |
b038ced7 SW |
55 | #include <rdma/ib_user_verbs.h> |
56 | ||
57 | #include "cxio_hal.h" | |
58 | #include "iwch.h" | |
59 | #include "iwch_provider.h" | |
60 | #include "iwch_cm.h" | |
61 | #include "iwch_user.h" | |
14cc180f | 62 | #include "common.h" |
b038ced7 | 63 | |
b038ced7 SW |
64 | static struct ib_ah *iwch_ah_create(struct ib_pd *pd, |
65 | struct ib_ah_attr *ah_attr) | |
66 | { | |
67 | return ERR_PTR(-ENOSYS); | |
68 | } | |
69 | ||
70 | static int iwch_ah_destroy(struct ib_ah *ah) | |
71 | { | |
72 | return -ENOSYS; | |
73 | } | |
74 | ||
75 | static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
76 | { | |
77 | return -ENOSYS; | |
78 | } | |
79 | ||
80 | static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
81 | { | |
82 | return -ENOSYS; | |
83 | } | |
84 | ||
85 | static int iwch_process_mad(struct ib_device *ibdev, | |
86 | int mad_flags, | |
87 | u8 port_num, | |
a97e2d86 IW |
88 | const struct ib_wc *in_wc, |
89 | const struct ib_grh *in_grh, | |
4cd7c947 IW |
90 | const struct ib_mad_hdr *in_mad, |
91 | size_t in_mad_size, | |
92 | struct ib_mad_hdr *out_mad, | |
93 | size_t *out_mad_size, | |
94 | u16 *out_mad_pkey_index) | |
b038ced7 SW |
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 | ||
bcf4c1ea MB |
145 | static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, |
146 | const struct ib_cq_init_attr *attr, | |
147 | struct ib_ucontext *ib_context, | |
148 | struct ib_udata *udata) | |
b038ced7 | 149 | { |
bcf4c1ea | 150 | int entries = attr->cqe; |
b038ced7 SW |
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; | |
b955150e SW |
156 | static int warned; |
157 | size_t resplen; | |
b038ced7 | 158 | |
33718363 | 159 | PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries); |
bcf4c1ea MB |
160 | if (attr->flags) |
161 | return ERR_PTR(-EINVAL); | |
162 | ||
b038ced7 SW |
163 | rhp = to_iwch_dev(ibdev); |
164 | chp = kzalloc(sizeof(*chp), GFP_KERNEL); | |
165 | if (!chp) | |
166 | return ERR_PTR(-ENOMEM); | |
167 | ||
168 | if (ib_context) { | |
169 | ucontext = to_iwch_ucontext(ib_context); | |
170 | if (!t3a_device(rhp)) { | |
171 | if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) { | |
172 | kfree(chp); | |
173 | return ERR_PTR(-EFAULT); | |
174 | } | |
175 | chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr; | |
176 | } | |
177 | } | |
178 | ||
179 | if (t3a_device(rhp)) { | |
180 | ||
181 | /* | |
182 | * T3A: Add some fluff to handle extra CQEs inserted | |
183 | * for various errors. | |
184 | * Additional CQE possibilities: | |
185 | * TERMINATE, | |
186 | * incoming RDMA WRITE Failures | |
187 | * incoming RDMA READ REQUEST FAILUREs | |
188 | * NOTE: We cannot ensure the CQ won't overflow. | |
189 | */ | |
190 | entries += 16; | |
191 | } | |
192 | entries = roundup_pow_of_two(entries); | |
193 | chp->cq.size_log2 = ilog2(entries); | |
194 | ||
5279d3ac | 195 | if (cxio_create_cq(&rhp->rdev, &chp->cq, !ucontext)) { |
b038ced7 SW |
196 | kfree(chp); |
197 | return ERR_PTR(-ENOMEM); | |
198 | } | |
199 | chp->rhp = rhp; | |
4fa45725 | 200 | chp->ibcq.cqe = 1 << chp->cq.size_log2; |
b038ced7 | 201 | spin_lock_init(&chp->lock); |
f7cc25d0 | 202 | spin_lock_init(&chp->comp_handler_lock); |
b038ced7 SW |
203 | atomic_set(&chp->refcnt, 1); |
204 | init_waitqueue_head(&chp->wait); | |
13a23933 SW |
205 | if (insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid)) { |
206 | cxio_destroy_cq(&chp->rhp->rdev, &chp->cq); | |
207 | kfree(chp); | |
208 | return ERR_PTR(-ENOMEM); | |
209 | } | |
b038ced7 SW |
210 | |
211 | if (ucontext) { | |
212 | struct iwch_mm_entry *mm; | |
213 | ||
214 | mm = kmalloc(sizeof *mm, GFP_KERNEL); | |
215 | if (!mm) { | |
216 | iwch_destroy_cq(&chp->ibcq); | |
217 | return ERR_PTR(-ENOMEM); | |
218 | } | |
219 | uresp.cqid = chp->cq.cqid; | |
220 | uresp.size_log2 = chp->cq.size_log2; | |
221 | spin_lock(&ucontext->mmap_lock); | |
222 | uresp.key = ucontext->key; | |
223 | ucontext->key += PAGE_SIZE; | |
224 | spin_unlock(&ucontext->mmap_lock); | |
b955150e SW |
225 | mm->key = uresp.key; |
226 | mm->addr = virt_to_phys(chp->cq.queue); | |
227 | if (udata->outlen < sizeof uresp) { | |
228 | if (!warned++) | |
229 | printk(KERN_WARNING MOD "Warning - " | |
230 | "downlevel libcxgb3 (non-fatal).\n"); | |
231 | mm->len = PAGE_ALIGN((1UL << uresp.size_log2) * | |
232 | sizeof(struct t3_cqe)); | |
233 | resplen = sizeof(struct iwch_create_cq_resp_v0); | |
234 | } else { | |
235 | mm->len = PAGE_ALIGN(((1UL << uresp.size_log2) + 1) * | |
236 | sizeof(struct t3_cqe)); | |
237 | uresp.memsize = mm->len; | |
246fcdbc | 238 | uresp.reserved = 0; |
b955150e SW |
239 | resplen = sizeof uresp; |
240 | } | |
241 | if (ib_copy_to_udata(udata, &uresp, resplen)) { | |
b038ced7 SW |
242 | kfree(mm); |
243 | iwch_destroy_cq(&chp->ibcq); | |
244 | return ERR_PTR(-EFAULT); | |
245 | } | |
b038ced7 SW |
246 | insert_mmap(ucontext, mm); |
247 | } | |
248 | PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n", | |
249 | chp->cq.cqid, chp, (1 << chp->cq.size_log2), | |
250 | (unsigned long long) chp->cq.dma_addr); | |
251 | return &chp->ibcq; | |
252 | } | |
253 | ||
254 | static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata) | |
255 | { | |
256 | #ifdef notyet | |
257 | struct iwch_cq *chp = to_iwch_cq(cq); | |
258 | struct t3_cq oldcq, newcq; | |
259 | int ret; | |
260 | ||
33718363 | 261 | PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe); |
b038ced7 SW |
262 | |
263 | /* We don't downsize... */ | |
264 | if (cqe <= cq->cqe) | |
265 | return 0; | |
266 | ||
267 | /* create new t3_cq with new size */ | |
268 | cqe = roundup_pow_of_two(cqe+1); | |
269 | newcq.size_log2 = ilog2(cqe); | |
270 | ||
271 | /* Dont allow resize to less than the current wce count */ | |
272 | if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) { | |
273 | return -ENOMEM; | |
274 | } | |
275 | ||
276 | /* Quiesce all QPs using this CQ */ | |
277 | ret = iwch_quiesce_qps(chp); | |
278 | if (ret) { | |
279 | return ret; | |
280 | } | |
281 | ||
282 | ret = cxio_create_cq(&chp->rhp->rdev, &newcq); | |
283 | if (ret) { | |
284 | return ret; | |
285 | } | |
286 | ||
287 | /* copy CQEs */ | |
288 | memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) * | |
289 | sizeof(struct t3_cqe)); | |
290 | ||
291 | /* old iwch_qp gets new t3_cq but keeps old cqid */ | |
292 | oldcq = chp->cq; | |
293 | chp->cq = newcq; | |
294 | chp->cq.cqid = oldcq.cqid; | |
295 | ||
296 | /* resize new t3_cq to update the HW context */ | |
297 | ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq); | |
298 | if (ret) { | |
299 | chp->cq = oldcq; | |
300 | return ret; | |
301 | } | |
302 | chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1; | |
303 | ||
304 | /* destroy old t3_cq */ | |
305 | oldcq.cqid = newcq.cqid; | |
306 | ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq); | |
307 | if (ret) { | |
308 | printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n", | |
33718363 | 309 | __func__, ret); |
b038ced7 SW |
310 | } |
311 | ||
312 | /* add user hooks here */ | |
313 | ||
314 | /* resume qps */ | |
315 | ret = iwch_resume_qps(chp); | |
316 | return ret; | |
317 | #else | |
318 | return -ENOSYS; | |
319 | #endif | |
320 | } | |
321 | ||
ed23a727 | 322 | static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) |
b038ced7 SW |
323 | { |
324 | struct iwch_dev *rhp; | |
325 | struct iwch_cq *chp; | |
326 | enum t3_cq_opcode cq_op; | |
327 | int err; | |
328 | unsigned long flag; | |
329 | u32 rptr; | |
330 | ||
331 | chp = to_iwch_cq(ibcq); | |
332 | rhp = chp->rhp; | |
ed23a727 | 333 | if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED) |
b038ced7 SW |
334 | cq_op = CQ_ARM_SE; |
335 | else | |
336 | cq_op = CQ_ARM_AN; | |
337 | if (chp->user_rptr_addr) { | |
338 | if (get_user(rptr, chp->user_rptr_addr)) | |
339 | return -EFAULT; | |
340 | spin_lock_irqsave(&chp->lock, flag); | |
341 | chp->cq.rptr = rptr; | |
342 | } else | |
343 | spin_lock_irqsave(&chp->lock, flag); | |
33718363 | 344 | PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr); |
b038ced7 SW |
345 | err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0); |
346 | spin_unlock_irqrestore(&chp->lock, flag); | |
ed23a727 | 347 | if (err < 0) |
b038ced7 SW |
348 | printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err, |
349 | chp->cq.cqid); | |
ed23a727 RD |
350 | if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS)) |
351 | err = 0; | |
b038ced7 SW |
352 | return err; |
353 | } | |
354 | ||
355 | static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
356 | { | |
357 | int len = vma->vm_end - vma->vm_start; | |
358 | u32 key = vma->vm_pgoff << PAGE_SHIFT; | |
359 | struct cxio_rdev *rdev_p; | |
360 | int ret = 0; | |
361 | struct iwch_mm_entry *mm; | |
362 | struct iwch_ucontext *ucontext; | |
aeb100e2 | 363 | u64 addr; |
b038ced7 | 364 | |
33718363 | 365 | PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff, |
b038ced7 SW |
366 | key, len); |
367 | ||
368 | if (vma->vm_start & (PAGE_SIZE-1)) { | |
369 | return -EINVAL; | |
370 | } | |
371 | ||
372 | rdev_p = &(to_iwch_dev(context->device)->rdev); | |
373 | ucontext = to_iwch_ucontext(context); | |
374 | ||
375 | mm = remove_mmap(ucontext, key, len); | |
376 | if (!mm) | |
377 | return -EINVAL; | |
aeb100e2 | 378 | addr = mm->addr; |
b038ced7 SW |
379 | kfree(mm); |
380 | ||
aeb100e2 SW |
381 | if ((addr >= rdev_p->rnic_info.udbell_physbase) && |
382 | (addr < (rdev_p->rnic_info.udbell_physbase + | |
b038ced7 SW |
383 | rdev_p->rnic_info.udbell_len))) { |
384 | ||
385 | /* | |
386 | * Map T3 DB register. | |
387 | */ | |
388 | if (vma->vm_flags & VM_READ) { | |
389 | return -EPERM; | |
390 | } | |
391 | ||
392 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
393 | vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; | |
394 | vma->vm_flags &= ~VM_MAYREAD; | |
395 | ret = io_remap_pfn_range(vma, vma->vm_start, | |
aeb100e2 | 396 | addr >> PAGE_SHIFT, |
b038ced7 SW |
397 | len, vma->vm_page_prot); |
398 | } else { | |
399 | ||
400 | /* | |
401 | * Map WQ or CQ contig dma memory... | |
402 | */ | |
403 | ret = remap_pfn_range(vma, vma->vm_start, | |
aeb100e2 | 404 | addr >> PAGE_SHIFT, |
b038ced7 SW |
405 | len, vma->vm_page_prot); |
406 | } | |
407 | ||
408 | return ret; | |
409 | } | |
410 | ||
411 | static int iwch_deallocate_pd(struct ib_pd *pd) | |
412 | { | |
413 | struct iwch_dev *rhp; | |
414 | struct iwch_pd *php; | |
415 | ||
416 | php = to_iwch_pd(pd); | |
417 | rhp = php->rhp; | |
33718363 | 418 | PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid); |
b038ced7 SW |
419 | cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid); |
420 | kfree(php); | |
421 | return 0; | |
422 | } | |
423 | ||
424 | static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev, | |
425 | struct ib_ucontext *context, | |
426 | struct ib_udata *udata) | |
427 | { | |
428 | struct iwch_pd *php; | |
429 | u32 pdid; | |
430 | struct iwch_dev *rhp; | |
431 | ||
33718363 | 432 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
433 | rhp = (struct iwch_dev *) ibdev; |
434 | pdid = cxio_hal_get_pdid(rhp->rdev.rscp); | |
435 | if (!pdid) | |
436 | return ERR_PTR(-EINVAL); | |
437 | php = kzalloc(sizeof(*php), GFP_KERNEL); | |
438 | if (!php) { | |
439 | cxio_hal_put_pdid(rhp->rdev.rscp, pdid); | |
440 | return ERR_PTR(-ENOMEM); | |
441 | } | |
442 | php->pdid = pdid; | |
443 | php->rhp = rhp; | |
444 | if (context) { | |
445 | if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) { | |
446 | iwch_deallocate_pd(&php->ibpd); | |
447 | return ERR_PTR(-EFAULT); | |
448 | } | |
449 | } | |
33718363 | 450 | PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php); |
b038ced7 SW |
451 | return &php->ibpd; |
452 | } | |
453 | ||
454 | static int iwch_dereg_mr(struct ib_mr *ib_mr) | |
455 | { | |
456 | struct iwch_dev *rhp; | |
457 | struct iwch_mr *mhp; | |
458 | u32 mmid; | |
459 | ||
33718363 | 460 | PDBG("%s ib_mr %p\n", __func__, ib_mr); |
b038ced7 SW |
461 | |
462 | mhp = to_iwch_mr(ib_mr); | |
14fb4171 | 463 | kfree(mhp->pages); |
b038ced7 SW |
464 | rhp = mhp->rhp; |
465 | mmid = mhp->attr.stag >> 8; | |
466 | cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, | |
467 | mhp->attr.pbl_addr); | |
273748cc | 468 | iwch_free_pbl(mhp); |
b038ced7 SW |
469 | remove_handle(rhp, &rhp->mmidr, mmid); |
470 | if (mhp->kva) | |
471 | kfree((void *) (unsigned long) mhp->kva); | |
f7c6a7b5 RD |
472 | if (mhp->umem) |
473 | ib_umem_release(mhp->umem); | |
33718363 | 474 | PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp); |
b038ced7 SW |
475 | kfree(mhp); |
476 | return 0; | |
477 | } | |
478 | ||
35cb3fc0 | 479 | static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc) |
b038ced7 | 480 | { |
35cb3fc0 CH |
481 | const u64 total_size = 0xffffffff; |
482 | const u64 mask = (total_size + PAGE_SIZE - 1) & PAGE_MASK; | |
483 | struct iwch_pd *php = to_iwch_pd(pd); | |
484 | struct iwch_dev *rhp = php->rhp; | |
b038ced7 | 485 | struct iwch_mr *mhp; |
35cb3fc0 CH |
486 | __be64 *page_list; |
487 | int shift = 26, npages, ret, i; | |
b038ced7 | 488 | |
33718363 | 489 | PDBG("%s ib_pd %p\n", __func__, pd); |
35cb3fc0 CH |
490 | |
491 | /* | |
492 | * T3 only supports 32 bits of size. | |
493 | */ | |
494 | if (sizeof(phys_addr_t) > 4) { | |
495 | pr_warn_once(MOD "Cannot support dma_mrs on this platform.\n"); | |
496 | return ERR_PTR(-ENOTSUPP); | |
497 | } | |
b038ced7 | 498 | |
b038ced7 SW |
499 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); |
500 | if (!mhp) | |
501 | return ERR_PTR(-ENOMEM); | |
502 | ||
273748cc RD |
503 | mhp->rhp = rhp; |
504 | ||
35cb3fc0 CH |
505 | npages = (total_size + (1ULL << shift) - 1) >> shift; |
506 | if (!npages) { | |
b038ced7 SW |
507 | ret = -EINVAL; |
508 | goto err; | |
509 | } | |
510 | ||
35cb3fc0 CH |
511 | page_list = kmalloc_array(npages, sizeof(u64), GFP_KERNEL); |
512 | if (!page_list) { | |
513 | ret = -ENOMEM; | |
b038ced7 SW |
514 | goto err; |
515 | } | |
516 | ||
35cb3fc0 CH |
517 | for (i = 0; i < npages; i++) |
518 | page_list[i] = cpu_to_be64((u64)i << shift); | |
519 | ||
520 | PDBG("%s mask 0x%llx shift %d len %lld pbl_size %d\n", | |
521 | __func__, mask, shift, total_size, npages); | |
b038ced7 | 522 | |
273748cc RD |
523 | ret = iwch_alloc_pbl(mhp, npages); |
524 | if (ret) { | |
525 | kfree(page_list); | |
526 | goto err_pbl; | |
527 | } | |
528 | ||
529 | ret = iwch_write_pbl(mhp, page_list, npages, 0); | |
530 | kfree(page_list); | |
531 | if (ret) | |
532 | goto err_pbl; | |
533 | ||
b038ced7 SW |
534 | mhp->attr.pdid = php->pdid; |
535 | mhp->attr.zbva = 0; | |
536 | ||
e64518f3 | 537 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
35cb3fc0 | 538 | mhp->attr.va_fbo = 0; |
b038ced7 SW |
539 | mhp->attr.page_size = shift - 12; |
540 | ||
541 | mhp->attr.len = (u32) total_size; | |
542 | mhp->attr.pbl_size = npages; | |
273748cc RD |
543 | ret = iwch_register_mem(rhp, php, mhp, shift); |
544 | if (ret) | |
545 | goto err_pbl; | |
546 | ||
b038ced7 | 547 | return &mhp->ibmr; |
273748cc RD |
548 | |
549 | err_pbl: | |
550 | iwch_free_pbl(mhp); | |
551 | ||
b038ced7 SW |
552 | err: |
553 | kfree(mhp); | |
554 | return ERR_PTR(ret); | |
b038ced7 SW |
555 | } |
556 | ||
f7c6a7b5 RD |
557 | static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, |
558 | u64 virt, int acc, struct ib_udata *udata) | |
b038ced7 SW |
559 | { |
560 | __be64 *pages; | |
561 | int shift, n, len; | |
eeb8461e | 562 | int i, k, entry; |
b038ced7 | 563 | int err = 0; |
b038ced7 SW |
564 | struct iwch_dev *rhp; |
565 | struct iwch_pd *php; | |
566 | struct iwch_mr *mhp; | |
567 | struct iwch_reg_user_mr_resp uresp; | |
eeb8461e | 568 | struct scatterlist *sg; |
33718363 | 569 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
570 | |
571 | php = to_iwch_pd(pd); | |
572 | rhp = php->rhp; | |
573 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
574 | if (!mhp) | |
575 | return ERR_PTR(-ENOMEM); | |
576 | ||
273748cc RD |
577 | mhp->rhp = rhp; |
578 | ||
cb9fbc5c | 579 | mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0); |
f7c6a7b5 RD |
580 | if (IS_ERR(mhp->umem)) { |
581 | err = PTR_ERR(mhp->umem); | |
582 | kfree(mhp); | |
583 | return ERR_PTR(err); | |
584 | } | |
585 | ||
586 | shift = ffs(mhp->umem->page_size) - 1; | |
587 | ||
eeb8461e | 588 | n = mhp->umem->nmap; |
b038ced7 | 589 | |
273748cc RD |
590 | err = iwch_alloc_pbl(mhp, n); |
591 | if (err) | |
592 | goto err; | |
593 | ||
594 | pages = (__be64 *) __get_free_page(GFP_KERNEL); | |
b038ced7 SW |
595 | if (!pages) { |
596 | err = -ENOMEM; | |
273748cc | 597 | goto err_pbl; |
b038ced7 SW |
598 | } |
599 | ||
b038ced7 SW |
600 | i = n = 0; |
601 | ||
eeb8461e YH |
602 | for_each_sg(mhp->umem->sg_head.sgl, sg, mhp->umem->nmap, entry) { |
603 | len = sg_dma_len(sg) >> shift; | |
b038ced7 | 604 | for (k = 0; k < len; ++k) { |
eeb8461e | 605 | pages[i++] = cpu_to_be64(sg_dma_address(sg) + |
f7c6a7b5 | 606 | mhp->umem->page_size * k); |
273748cc RD |
607 | if (i == PAGE_SIZE / sizeof *pages) { |
608 | err = iwch_write_pbl(mhp, pages, i, n); | |
609 | if (err) | |
610 | goto pbl_done; | |
611 | n += i; | |
612 | i = 0; | |
613 | } | |
b038ced7 | 614 | } |
eeb8461e | 615 | } |
b038ced7 | 616 | |
273748cc RD |
617 | if (i) |
618 | err = iwch_write_pbl(mhp, pages, i, n); | |
619 | ||
620 | pbl_done: | |
621 | free_page((unsigned long) pages); | |
622 | if (err) | |
623 | goto err_pbl; | |
624 | ||
b038ced7 SW |
625 | mhp->attr.pdid = php->pdid; |
626 | mhp->attr.zbva = 0; | |
e64518f3 | 627 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
f7c6a7b5 | 628 | mhp->attr.va_fbo = virt; |
b038ced7 | 629 | mhp->attr.page_size = shift - 12; |
f7c6a7b5 | 630 | mhp->attr.len = (u32) length; |
273748cc RD |
631 | |
632 | err = iwch_register_mem(rhp, php, mhp, shift); | |
b038ced7 | 633 | if (err) |
273748cc | 634 | goto err_pbl; |
b038ced7 | 635 | |
8176d297 | 636 | if (udata && !t3a_device(rhp)) { |
b038ced7 | 637 | uresp.pbl_addr = (mhp->attr.pbl_addr - |
273748cc | 638 | rhp->rdev.rnic_info.pbl_base) >> 3; |
33718363 | 639 | PDBG("%s user resp pbl_addr 0x%x\n", __func__, |
b038ced7 SW |
640 | uresp.pbl_addr); |
641 | ||
642 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
643 | iwch_dereg_mr(&mhp->ibmr); | |
644 | err = -EFAULT; | |
645 | goto err; | |
646 | } | |
647 | } | |
648 | ||
649 | return &mhp->ibmr; | |
650 | ||
273748cc RD |
651 | err_pbl: |
652 | iwch_free_pbl(mhp); | |
653 | ||
b038ced7 | 654 | err: |
f7c6a7b5 | 655 | ib_umem_release(mhp->umem); |
b038ced7 SW |
656 | kfree(mhp); |
657 | return ERR_PTR(err); | |
658 | } | |
659 | ||
b2a239df MB |
660 | static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd, enum ib_mw_type type, |
661 | struct ib_udata *udata) | |
b038ced7 SW |
662 | { |
663 | struct iwch_dev *rhp; | |
664 | struct iwch_pd *php; | |
665 | struct iwch_mw *mhp; | |
666 | u32 mmid; | |
667 | u32 stag = 0; | |
668 | int ret; | |
669 | ||
7083e42e SM |
670 | if (type != IB_MW_TYPE_1) |
671 | return ERR_PTR(-EINVAL); | |
672 | ||
b038ced7 SW |
673 | php = to_iwch_pd(pd); |
674 | rhp = php->rhp; | |
675 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
676 | if (!mhp) | |
677 | return ERR_PTR(-ENOMEM); | |
678 | ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid); | |
679 | if (ret) { | |
680 | kfree(mhp); | |
681 | return ERR_PTR(ret); | |
682 | } | |
683 | mhp->rhp = rhp; | |
684 | mhp->attr.pdid = php->pdid; | |
685 | mhp->attr.type = TPT_MW; | |
686 | mhp->attr.stag = stag; | |
687 | mmid = (stag) >> 8; | |
70fe1796 | 688 | mhp->ibmw.rkey = stag; |
13a23933 SW |
689 | if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) { |
690 | cxio_deallocate_window(&rhp->rdev, mhp->attr.stag); | |
691 | kfree(mhp); | |
692 | return ERR_PTR(-ENOMEM); | |
693 | } | |
33718363 | 694 | PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); |
b038ced7 SW |
695 | return &(mhp->ibmw); |
696 | } | |
697 | ||
698 | static int iwch_dealloc_mw(struct ib_mw *mw) | |
699 | { | |
700 | struct iwch_dev *rhp; | |
701 | struct iwch_mw *mhp; | |
702 | u32 mmid; | |
703 | ||
704 | mhp = to_iwch_mw(mw); | |
705 | rhp = mhp->rhp; | |
706 | mmid = (mw->rkey) >> 8; | |
707 | cxio_deallocate_window(&rhp->rdev, mhp->attr.stag); | |
708 | remove_handle(rhp, &rhp->mmidr, mmid); | |
33718363 | 709 | PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp); |
fe194f19 | 710 | kfree(mhp); |
b038ced7 SW |
711 | return 0; |
712 | } | |
713 | ||
f683d3bd SG |
714 | static struct ib_mr *iwch_alloc_mr(struct ib_pd *pd, |
715 | enum ib_mr_type mr_type, | |
716 | u32 max_num_sg) | |
e7e55829 SW |
717 | { |
718 | struct iwch_dev *rhp; | |
719 | struct iwch_pd *php; | |
720 | struct iwch_mr *mhp; | |
721 | u32 mmid; | |
722 | u32 stag = 0; | |
13a23933 | 723 | int ret = 0; |
e7e55829 | 724 | |
f683d3bd SG |
725 | if (mr_type != IB_MR_TYPE_MEM_REG || |
726 | max_num_sg > T3_MAX_FASTREG_DEPTH) | |
727 | return ERR_PTR(-EINVAL); | |
728 | ||
e7e55829 SW |
729 | php = to_iwch_pd(pd); |
730 | rhp = php->rhp; | |
731 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
732 | if (!mhp) | |
13a23933 | 733 | goto err; |
e7e55829 | 734 | |
14fb4171 SG |
735 | mhp->pages = kcalloc(max_num_sg, sizeof(u64), GFP_KERNEL); |
736 | if (!mhp->pages) { | |
737 | ret = -ENOMEM; | |
738 | goto pl_err; | |
739 | } | |
740 | ||
e7e55829 | 741 | mhp->rhp = rhp; |
f683d3bd | 742 | ret = iwch_alloc_pbl(mhp, max_num_sg); |
13a23933 SW |
743 | if (ret) |
744 | goto err1; | |
f683d3bd | 745 | mhp->attr.pbl_size = max_num_sg; |
e7e55829 SW |
746 | ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid, |
747 | mhp->attr.pbl_size, mhp->attr.pbl_addr); | |
13a23933 SW |
748 | if (ret) |
749 | goto err2; | |
e7e55829 SW |
750 | mhp->attr.pdid = php->pdid; |
751 | mhp->attr.type = TPT_NON_SHARED_MR; | |
752 | mhp->attr.stag = stag; | |
753 | mhp->attr.state = 1; | |
754 | mmid = (stag) >> 8; | |
755 | mhp->ibmr.rkey = mhp->ibmr.lkey = stag; | |
13a23933 SW |
756 | if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) |
757 | goto err3; | |
758 | ||
e7e55829 SW |
759 | PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); |
760 | return &(mhp->ibmr); | |
13a23933 SW |
761 | err3: |
762 | cxio_dereg_mem(&rhp->rdev, stag, mhp->attr.pbl_size, | |
763 | mhp->attr.pbl_addr); | |
764 | err2: | |
765 | iwch_free_pbl(mhp); | |
766 | err1: | |
14fb4171 SG |
767 | kfree(mhp->pages); |
768 | pl_err: | |
13a23933 SW |
769 | kfree(mhp); |
770 | err: | |
771 | return ERR_PTR(ret); | |
e7e55829 SW |
772 | } |
773 | ||
14fb4171 SG |
774 | static int iwch_set_page(struct ib_mr *ibmr, u64 addr) |
775 | { | |
776 | struct iwch_mr *mhp = to_iwch_mr(ibmr); | |
777 | ||
778 | if (unlikely(mhp->npages == mhp->attr.pbl_size)) | |
779 | return -ENOMEM; | |
780 | ||
781 | mhp->pages[mhp->npages++] = addr; | |
782 | ||
783 | return 0; | |
784 | } | |
785 | ||
ff2ba993 | 786 | static int iwch_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, |
9aa8b321 | 787 | int sg_nents, unsigned int *sg_offset) |
14fb4171 SG |
788 | { |
789 | struct iwch_mr *mhp = to_iwch_mr(ibmr); | |
790 | ||
791 | mhp->npages = 0; | |
792 | ||
ff2ba993 | 793 | return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, iwch_set_page); |
14fb4171 SG |
794 | } |
795 | ||
b038ced7 SW |
796 | static int iwch_destroy_qp(struct ib_qp *ib_qp) |
797 | { | |
798 | struct iwch_dev *rhp; | |
799 | struct iwch_qp *qhp; | |
800 | struct iwch_qp_attributes attrs; | |
801 | struct iwch_ucontext *ucontext; | |
802 | ||
803 | qhp = to_iwch_qp(ib_qp); | |
804 | rhp = qhp->rhp; | |
805 | ||
2df50da0 SW |
806 | attrs.next_state = IWCH_QP_STATE_ERROR; |
807 | iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0); | |
b038ced7 SW |
808 | wait_event(qhp->wait, !qhp->ep); |
809 | ||
810 | remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid); | |
811 | ||
812 | atomic_dec(&qhp->refcnt); | |
813 | wait_event(qhp->wait, !atomic_read(&qhp->refcnt)); | |
814 | ||
815 | ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context) | |
816 | : NULL; | |
817 | cxio_destroy_qp(&rhp->rdev, &qhp->wq, | |
818 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx); | |
819 | ||
33718363 | 820 | PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__, |
b038ced7 SW |
821 | ib_qp, qhp->wq.qpid, qhp); |
822 | kfree(qhp); | |
823 | return 0; | |
824 | } | |
825 | ||
826 | static struct ib_qp *iwch_create_qp(struct ib_pd *pd, | |
827 | struct ib_qp_init_attr *attrs, | |
828 | struct ib_udata *udata) | |
829 | { | |
830 | struct iwch_dev *rhp; | |
831 | struct iwch_qp *qhp; | |
832 | struct iwch_pd *php; | |
833 | struct iwch_cq *schp; | |
834 | struct iwch_cq *rchp; | |
835 | struct iwch_create_qp_resp uresp; | |
836 | int wqsize, sqsize, rqsize; | |
837 | struct iwch_ucontext *ucontext; | |
838 | ||
33718363 | 839 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
840 | if (attrs->qp_type != IB_QPT_RC) |
841 | return ERR_PTR(-EINVAL); | |
842 | php = to_iwch_pd(pd); | |
843 | rhp = php->rhp; | |
844 | schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid); | |
845 | rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid); | |
846 | if (!schp || !rchp) | |
847 | return ERR_PTR(-EINVAL); | |
848 | ||
849 | /* The RQT size must be # of entries + 1 rounded up to a power of two */ | |
850 | rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr); | |
851 | if (rqsize == attrs->cap.max_recv_wr) | |
852 | rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1); | |
853 | ||
854 | /* T3 doesn't support RQT depth < 16 */ | |
855 | if (rqsize < 16) | |
856 | rqsize = 16; | |
857 | ||
858 | if (rqsize > T3_MAX_RQ_SIZE) | |
859 | return ERR_PTR(-EINVAL); | |
860 | ||
1860cdf8 SW |
861 | if (attrs->cap.max_inline_data > T3_MAX_INLINE) |
862 | return ERR_PTR(-EINVAL); | |
863 | ||
b038ced7 SW |
864 | /* |
865 | * NOTE: The SQ and total WQ sizes don't need to be | |
866 | * a power of two. However, all the code assumes | |
867 | * they are. EG: Q_FREECNT() and friends. | |
868 | */ | |
869 | sqsize = roundup_pow_of_two(attrs->cap.max_send_wr); | |
870 | wqsize = roundup_pow_of_two(rqsize + sqsize); | |
e7e55829 SW |
871 | |
872 | /* | |
873 | * Kernel users need more wq space for fastreg WRs which can take | |
874 | * 2 WR fragments. | |
875 | */ | |
876 | ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL; | |
877 | if (!ucontext && wqsize < (rqsize + (2 * sqsize))) | |
878 | wqsize = roundup_pow_of_two(rqsize + | |
879 | roundup_pow_of_two(attrs->cap.max_send_wr * 2)); | |
33718363 | 880 | PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__, |
b038ced7 SW |
881 | wqsize, sqsize, rqsize); |
882 | qhp = kzalloc(sizeof(*qhp), GFP_KERNEL); | |
883 | if (!qhp) | |
884 | return ERR_PTR(-ENOMEM); | |
885 | qhp->wq.size_log2 = ilog2(wqsize); | |
886 | qhp->wq.rq_size_log2 = ilog2(rqsize); | |
887 | qhp->wq.sq_size_log2 = ilog2(sqsize); | |
b038ced7 SW |
888 | if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq, |
889 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) { | |
890 | kfree(qhp); | |
891 | return ERR_PTR(-ENOMEM); | |
892 | } | |
1bab74e6 | 893 | |
b038ced7 SW |
894 | attrs->cap.max_recv_wr = rqsize - 1; |
895 | attrs->cap.max_send_wr = sqsize; | |
1bab74e6 JM |
896 | attrs->cap.max_inline_data = T3_MAX_INLINE; |
897 | ||
b038ced7 SW |
898 | qhp->rhp = rhp; |
899 | qhp->attr.pd = php->pdid; | |
900 | qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid; | |
901 | qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid; | |
902 | qhp->attr.sq_num_entries = attrs->cap.max_send_wr; | |
903 | qhp->attr.rq_num_entries = attrs->cap.max_recv_wr; | |
904 | qhp->attr.sq_max_sges = attrs->cap.max_send_sge; | |
905 | qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge; | |
906 | qhp->attr.rq_max_sges = attrs->cap.max_recv_sge; | |
907 | qhp->attr.state = IWCH_QP_STATE_IDLE; | |
908 | qhp->attr.next_state = IWCH_QP_STATE_IDLE; | |
909 | ||
910 | /* | |
911 | * XXX - These don't get passed in from the openib user | |
912 | * at create time. The CM sets them via a QP modify. | |
913 | * Need to fix... I think the CM should | |
914 | */ | |
915 | qhp->attr.enable_rdma_read = 1; | |
916 | qhp->attr.enable_rdma_write = 1; | |
917 | qhp->attr.enable_bind = 1; | |
918 | qhp->attr.max_ord = 1; | |
919 | qhp->attr.max_ird = 1; | |
920 | ||
921 | spin_lock_init(&qhp->lock); | |
922 | init_waitqueue_head(&qhp->wait); | |
923 | atomic_set(&qhp->refcnt, 1); | |
13a23933 SW |
924 | |
925 | if (insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid)) { | |
926 | cxio_destroy_qp(&rhp->rdev, &qhp->wq, | |
927 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx); | |
928 | kfree(qhp); | |
929 | return ERR_PTR(-ENOMEM); | |
930 | } | |
b038ced7 SW |
931 | |
932 | if (udata) { | |
933 | ||
934 | struct iwch_mm_entry *mm1, *mm2; | |
935 | ||
936 | mm1 = kmalloc(sizeof *mm1, GFP_KERNEL); | |
937 | if (!mm1) { | |
938 | iwch_destroy_qp(&qhp->ibqp); | |
939 | return ERR_PTR(-ENOMEM); | |
940 | } | |
941 | ||
942 | mm2 = kmalloc(sizeof *mm2, GFP_KERNEL); | |
943 | if (!mm2) { | |
944 | kfree(mm1); | |
945 | iwch_destroy_qp(&qhp->ibqp); | |
946 | return ERR_PTR(-ENOMEM); | |
947 | } | |
948 | ||
949 | uresp.qpid = qhp->wq.qpid; | |
950 | uresp.size_log2 = qhp->wq.size_log2; | |
951 | uresp.sq_size_log2 = qhp->wq.sq_size_log2; | |
952 | uresp.rq_size_log2 = qhp->wq.rq_size_log2; | |
953 | spin_lock(&ucontext->mmap_lock); | |
954 | uresp.key = ucontext->key; | |
955 | ucontext->key += PAGE_SIZE; | |
956 | uresp.db_key = ucontext->key; | |
957 | ucontext->key += PAGE_SIZE; | |
958 | spin_unlock(&ucontext->mmap_lock); | |
959 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
960 | kfree(mm1); | |
961 | kfree(mm2); | |
962 | iwch_destroy_qp(&qhp->ibqp); | |
963 | return ERR_PTR(-EFAULT); | |
964 | } | |
965 | mm1->key = uresp.key; | |
966 | mm1->addr = virt_to_phys(qhp->wq.queue); | |
967 | mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr)); | |
968 | insert_mmap(ucontext, mm1); | |
969 | mm2->key = uresp.db_key; | |
970 | mm2->addr = qhp->wq.udb & PAGE_MASK; | |
971 | mm2->len = PAGE_SIZE; | |
972 | insert_mmap(ucontext, mm2); | |
973 | } | |
974 | qhp->ibqp.qp_num = qhp->wq.qpid; | |
975 | init_timer(&(qhp->timer)); | |
976 | PDBG("%s sq_num_entries %d, rq_num_entries %d " | |
4ab928f6 | 977 | "qpid 0x%0x qhp %p dma_addr 0x%llx size %d rq_addr 0x%x\n", |
33718363 | 978 | __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries, |
b038ced7 | 979 | qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr, |
4ab928f6 | 980 | 1 << qhp->wq.size_log2, qhp->wq.rq_addr); |
b038ced7 SW |
981 | return &qhp->ibqp; |
982 | } | |
983 | ||
984 | static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
985 | int attr_mask, struct ib_udata *udata) | |
986 | { | |
987 | struct iwch_dev *rhp; | |
988 | struct iwch_qp *qhp; | |
989 | enum iwch_qp_attr_mask mask = 0; | |
990 | struct iwch_qp_attributes attrs; | |
991 | ||
33718363 | 992 | PDBG("%s ib_qp %p\n", __func__, ibqp); |
b038ced7 SW |
993 | |
994 | /* iwarp does not support the RTR state */ | |
995 | if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR)) | |
996 | attr_mask &= ~IB_QP_STATE; | |
997 | ||
998 | /* Make sure we still have something left to do */ | |
999 | if (!attr_mask) | |
1000 | return 0; | |
1001 | ||
1002 | memset(&attrs, 0, sizeof attrs); | |
1003 | qhp = to_iwch_qp(ibqp); | |
1004 | rhp = qhp->rhp; | |
1005 | ||
1006 | attrs.next_state = iwch_convert_state(attr->qp_state); | |
1007 | attrs.enable_rdma_read = (attr->qp_access_flags & | |
1008 | IB_ACCESS_REMOTE_READ) ? 1 : 0; | |
1009 | attrs.enable_rdma_write = (attr->qp_access_flags & | |
1010 | IB_ACCESS_REMOTE_WRITE) ? 1 : 0; | |
1011 | attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0; | |
1012 | ||
1013 | ||
1014 | mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0; | |
1015 | mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ? | |
1016 | (IWCH_QP_ATTR_ENABLE_RDMA_READ | | |
1017 | IWCH_QP_ATTR_ENABLE_RDMA_WRITE | | |
1018 | IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0; | |
1019 | ||
1020 | return iwch_modify_qp(rhp, qhp, mask, &attrs, 0); | |
1021 | } | |
1022 | ||
1023 | void iwch_qp_add_ref(struct ib_qp *qp) | |
1024 | { | |
33718363 | 1025 | PDBG("%s ib_qp %p\n", __func__, qp); |
b038ced7 SW |
1026 | atomic_inc(&(to_iwch_qp(qp)->refcnt)); |
1027 | } | |
1028 | ||
1029 | void iwch_qp_rem_ref(struct ib_qp *qp) | |
1030 | { | |
33718363 | 1031 | PDBG("%s ib_qp %p\n", __func__, qp); |
b038ced7 SW |
1032 | if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt))) |
1033 | wake_up(&(to_iwch_qp(qp)->wait)); | |
1034 | } | |
1035 | ||
2b540355 | 1036 | static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn) |
b038ced7 | 1037 | { |
33718363 | 1038 | PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn); |
b038ced7 SW |
1039 | return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn); |
1040 | } | |
1041 | ||
1042 | ||
1043 | static int iwch_query_pkey(struct ib_device *ibdev, | |
1044 | u8 port, u16 index, u16 * pkey) | |
1045 | { | |
33718363 | 1046 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
1047 | *pkey = 0; |
1048 | return 0; | |
1049 | } | |
1050 | ||
1051 | static int iwch_query_gid(struct ib_device *ibdev, u8 port, | |
1052 | int index, union ib_gid *gid) | |
1053 | { | |
1054 | struct iwch_dev *dev; | |
1055 | ||
1056 | PDBG("%s ibdev %p, port %d, index %d, gid %p\n", | |
33718363 | 1057 | __func__, ibdev, port, index, gid); |
b038ced7 SW |
1058 | dev = to_iwch_dev(ibdev); |
1059 | BUG_ON(port == 0 || port > 2); | |
1060 | memset(&(gid->raw[0]), 0, sizeof(gid->raw)); | |
1061 | memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6); | |
1062 | return 0; | |
1063 | } | |
1064 | ||
97d1cc80 SW |
1065 | static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev) |
1066 | { | |
1067 | struct ethtool_drvinfo info; | |
1068 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; | |
1069 | char *cp, *next; | |
1070 | unsigned fw_maj, fw_min, fw_mic; | |
1071 | ||
97d1cc80 | 1072 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
97d1cc80 SW |
1073 | |
1074 | next = info.fw_version + 1; | |
1075 | cp = strsep(&next, "."); | |
1076 | sscanf(cp, "%i", &fw_maj); | |
1077 | cp = strsep(&next, "."); | |
1078 | sscanf(cp, "%i", &fw_min); | |
1079 | cp = strsep(&next, "."); | |
1080 | sscanf(cp, "%i", &fw_mic); | |
1081 | ||
1082 | return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) | | |
1083 | (fw_mic & 0xffff); | |
1084 | } | |
1085 | ||
2528e33e MB |
1086 | static int iwch_query_device(struct ib_device *ibdev, struct ib_device_attr *props, |
1087 | struct ib_udata *uhw) | |
b038ced7 SW |
1088 | { |
1089 | ||
1090 | struct iwch_dev *dev; | |
2528e33e | 1091 | |
33718363 | 1092 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 | 1093 | |
2528e33e MB |
1094 | if (uhw->inlen || uhw->outlen) |
1095 | return -EINVAL; | |
1096 | ||
b038ced7 SW |
1097 | dev = to_iwch_dev(ibdev); |
1098 | memset(props, 0, sizeof *props); | |
1099 | memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); | |
97d1cc80 SW |
1100 | props->hw_ver = dev->rdev.t3cdev_p->type; |
1101 | props->fw_ver = fw_vers_string_to_u64(dev); | |
b038ced7 | 1102 | props->device_cap_flags = dev->device_cap_flags; |
52c8084b | 1103 | props->page_size_cap = dev->attr.mem_pgsizes_bitmask; |
b038ced7 SW |
1104 | props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor; |
1105 | props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device; | |
ccaf10d0 | 1106 | props->max_mr_size = dev->attr.max_mr_size; |
b038ced7 SW |
1107 | props->max_qp = dev->attr.max_qps; |
1108 | props->max_qp_wr = dev->attr.max_wrs; | |
1109 | props->max_sge = dev->attr.max_sge_per_wr; | |
1110 | props->max_sge_rd = 1; | |
1111 | props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp; | |
9a766649 | 1112 | props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp; |
b038ced7 SW |
1113 | props->max_cq = dev->attr.max_cqs; |
1114 | props->max_cqe = dev->attr.max_cqes_per_cq; | |
1115 | props->max_mr = dev->attr.max_mem_regs; | |
1116 | props->max_pd = dev->attr.max_pds; | |
1117 | props->local_ca_ack_delay = 0; | |
e7e55829 | 1118 | props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH; |
b038ced7 SW |
1119 | |
1120 | return 0; | |
1121 | } | |
1122 | ||
1123 | static int iwch_query_port(struct ib_device *ibdev, | |
1124 | u8 port, struct ib_port_attr *props) | |
1125 | { | |
7ab1a2b3 SW |
1126 | struct iwch_dev *dev; |
1127 | struct net_device *netdev; | |
1128 | struct in_device *inetdev; | |
1129 | ||
33718363 | 1130 | PDBG("%s ibdev %p\n", __func__, ibdev); |
c752c782 | 1131 | |
7ab1a2b3 SW |
1132 | dev = to_iwch_dev(ibdev); |
1133 | netdev = dev->rdev.port_info.lldevs[port-1]; | |
1134 | ||
c752c782 | 1135 | memset(props, 0, sizeof(struct ib_port_attr)); |
b038ced7 | 1136 | props->max_mtu = IB_MTU_4096; |
7ab1a2b3 SW |
1137 | if (netdev->mtu >= 4096) |
1138 | props->active_mtu = IB_MTU_4096; | |
1139 | else if (netdev->mtu >= 2048) | |
1140 | props->active_mtu = IB_MTU_2048; | |
1141 | else if (netdev->mtu >= 1024) | |
1142 | props->active_mtu = IB_MTU_1024; | |
1143 | else if (netdev->mtu >= 512) | |
1144 | props->active_mtu = IB_MTU_512; | |
1145 | else | |
1146 | props->active_mtu = IB_MTU_256; | |
1147 | ||
1148 | if (!netif_carrier_ok(netdev)) | |
1149 | props->state = IB_PORT_DOWN; | |
1150 | else { | |
1151 | inetdev = in_dev_get(netdev); | |
e5da4ed8 SW |
1152 | if (inetdev) { |
1153 | if (inetdev->ifa_list) | |
1154 | props->state = IB_PORT_ACTIVE; | |
1155 | else | |
1156 | props->state = IB_PORT_INIT; | |
1157 | in_dev_put(inetdev); | |
1158 | } else | |
7ab1a2b3 | 1159 | props->state = IB_PORT_INIT; |
7ab1a2b3 SW |
1160 | } |
1161 | ||
b038ced7 SW |
1162 | props->port_cap_flags = |
1163 | IB_PORT_CM_SUP | | |
1164 | IB_PORT_SNMP_TUNNEL_SUP | | |
1165 | IB_PORT_REINIT_SUP | | |
1166 | IB_PORT_DEVICE_MGMT_SUP | | |
1167 | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; | |
1168 | props->gid_tbl_len = 1; | |
1169 | props->pkey_tbl_len = 1; | |
b038ced7 | 1170 | props->active_width = 2; |
2e96691c | 1171 | props->active_speed = IB_SPEED_DDR; |
b038ced7 SW |
1172 | props->max_msg_sz = -1; |
1173 | ||
1174 | return 0; | |
1175 | } | |
1176 | ||
f4e91eb4 TJ |
1177 | static ssize_t show_rev(struct device *dev, struct device_attribute *attr, |
1178 | char *buf) | |
b038ced7 | 1179 | { |
f4e91eb4 TJ |
1180 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1181 | ibdev.dev); | |
1182 | PDBG("%s dev 0x%p\n", __func__, dev); | |
1183 | return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type); | |
b038ced7 SW |
1184 | } |
1185 | ||
f4e91eb4 TJ |
1186 | static ssize_t show_hca(struct device *dev, struct device_attribute *attr, |
1187 | char *buf) | |
b038ced7 | 1188 | { |
f4e91eb4 TJ |
1189 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1190 | ibdev.dev); | |
b038ced7 | 1191 | struct ethtool_drvinfo info; |
f4e91eb4 | 1192 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
b038ced7 | 1193 | |
f4e91eb4 | 1194 | PDBG("%s dev 0x%p\n", __func__, dev); |
b038ced7 SW |
1195 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
1196 | return sprintf(buf, "%s\n", info.driver); | |
1197 | } | |
1198 | ||
f4e91eb4 TJ |
1199 | static ssize_t show_board(struct device *dev, struct device_attribute *attr, |
1200 | char *buf) | |
b038ced7 | 1201 | { |
f4e91eb4 TJ |
1202 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1203 | ibdev.dev); | |
1204 | PDBG("%s dev 0x%p\n", __func__, dev); | |
1205 | return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor, | |
1206 | iwch_dev->rdev.rnic_info.pdev->device); | |
b038ced7 SW |
1207 | } |
1208 | ||
b40f4757 CL |
1209 | enum counters { |
1210 | IPINRECEIVES, | |
1211 | IPINHDRERRORS, | |
1212 | IPINADDRERRORS, | |
1213 | IPINUNKNOWNPROTOS, | |
1214 | IPINDISCARDS, | |
1215 | IPINDELIVERS, | |
1216 | IPOUTREQUESTS, | |
1217 | IPOUTDISCARDS, | |
1218 | IPOUTNOROUTES, | |
1219 | IPREASMTIMEOUT, | |
1220 | IPREASMREQDS, | |
1221 | IPREASMOKS, | |
1222 | IPREASMFAILS, | |
1223 | TCPACTIVEOPENS, | |
1224 | TCPPASSIVEOPENS, | |
1225 | TCPATTEMPTFAILS, | |
1226 | TCPESTABRESETS, | |
1227 | TCPCURRESTAB, | |
1228 | TCPINSEGS, | |
1229 | TCPOUTSEGS, | |
1230 | TCPRETRANSSEGS, | |
1231 | TCPINERRS, | |
1232 | TCPOUTRSTS, | |
1233 | TCPRTOMIN, | |
1234 | TCPRTOMAX, | |
1235 | NR_COUNTERS | |
1236 | }; | |
1237 | ||
1238 | static const char * const names[] = { | |
1239 | [IPINRECEIVES] = "ipInReceives", | |
1240 | [IPINHDRERRORS] = "ipInHdrErrors", | |
1241 | [IPINADDRERRORS] = "ipInAddrErrors", | |
1242 | [IPINUNKNOWNPROTOS] = "ipInUnknownProtos", | |
1243 | [IPINDISCARDS] = "ipInDiscards", | |
1244 | [IPINDELIVERS] = "ipInDelivers", | |
1245 | [IPOUTREQUESTS] = "ipOutRequests", | |
1246 | [IPOUTDISCARDS] = "ipOutDiscards", | |
1247 | [IPOUTNOROUTES] = "ipOutNoRoutes", | |
1248 | [IPREASMTIMEOUT] = "ipReasmTimeout", | |
1249 | [IPREASMREQDS] = "ipReasmReqds", | |
1250 | [IPREASMOKS] = "ipReasmOKs", | |
1251 | [IPREASMFAILS] = "ipReasmFails", | |
1252 | [TCPACTIVEOPENS] = "tcpActiveOpens", | |
1253 | [TCPPASSIVEOPENS] = "tcpPassiveOpens", | |
1254 | [TCPATTEMPTFAILS] = "tcpAttemptFails", | |
1255 | [TCPESTABRESETS] = "tcpEstabResets", | |
1256 | [TCPCURRESTAB] = "tcpCurrEstab", | |
1257 | [TCPINSEGS] = "tcpInSegs", | |
1258 | [TCPOUTSEGS] = "tcpOutSegs", | |
1259 | [TCPRETRANSSEGS] = "tcpRetransSegs", | |
1260 | [TCPINERRS] = "tcpInErrs", | |
1261 | [TCPOUTRSTS] = "tcpOutRsts", | |
1262 | [TCPRTOMIN] = "tcpRtoMin", | |
1263 | [TCPRTOMAX] = "tcpRtoMax", | |
1264 | }; | |
1265 | ||
1266 | static struct rdma_hw_stats *iwch_alloc_stats(struct ib_device *ibdev, | |
1267 | u8 port_num) | |
1268 | { | |
1269 | BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS); | |
1270 | ||
1271 | /* Our driver only supports device level stats */ | |
1272 | if (port_num != 0) | |
1273 | return NULL; | |
1274 | ||
1275 | return rdma_alloc_hw_stats_struct(names, NR_COUNTERS, | |
1276 | RDMA_HW_STATS_DEFAULT_LIFESPAN); | |
1277 | } | |
1278 | ||
1279 | static int iwch_get_mib(struct ib_device *ibdev, struct rdma_hw_stats *stats, | |
1280 | u8 port, int index) | |
14cc180f SW |
1281 | { |
1282 | struct iwch_dev *dev; | |
1283 | struct tp_mib_stats m; | |
1284 | int ret; | |
1285 | ||
b40f4757 CL |
1286 | if (port != 0 || !stats) |
1287 | return -ENOSYS; | |
1288 | ||
14cc180f SW |
1289 | PDBG("%s ibdev %p\n", __func__, ibdev); |
1290 | dev = to_iwch_dev(ibdev); | |
1291 | ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m); | |
1292 | if (ret) | |
1293 | return -ENOSYS; | |
1294 | ||
b40f4757 CL |
1295 | stats->value[IPINRECEIVES] = ((u64)m.ipInReceive_hi << 32) + m.ipInReceive_lo; |
1296 | stats->value[IPINHDRERRORS] = ((u64)m.ipInHdrErrors_hi << 32) + m.ipInHdrErrors_lo; | |
1297 | stats->value[IPINADDRERRORS] = ((u64)m.ipInAddrErrors_hi << 32) + m.ipInAddrErrors_lo; | |
1298 | stats->value[IPINUNKNOWNPROTOS] = ((u64)m.ipInUnknownProtos_hi << 32) + m.ipInUnknownProtos_lo; | |
1299 | stats->value[IPINDISCARDS] = ((u64)m.ipInDiscards_hi << 32) + m.ipInDiscards_lo; | |
1300 | stats->value[IPINDELIVERS] = ((u64)m.ipInDelivers_hi << 32) + m.ipInDelivers_lo; | |
1301 | stats->value[IPOUTREQUESTS] = ((u64)m.ipOutRequests_hi << 32) + m.ipOutRequests_lo; | |
1302 | stats->value[IPOUTDISCARDS] = ((u64)m.ipOutDiscards_hi << 32) + m.ipOutDiscards_lo; | |
1303 | stats->value[IPOUTNOROUTES] = ((u64)m.ipOutNoRoutes_hi << 32) + m.ipOutNoRoutes_lo; | |
1304 | stats->value[IPREASMTIMEOUT] = m.ipReasmTimeout; | |
1305 | stats->value[IPREASMREQDS] = m.ipReasmReqds; | |
1306 | stats->value[IPREASMOKS] = m.ipReasmOKs; | |
1307 | stats->value[IPREASMFAILS] = m.ipReasmFails; | |
1308 | stats->value[TCPACTIVEOPENS] = m.tcpActiveOpens; | |
1309 | stats->value[TCPPASSIVEOPENS] = m.tcpPassiveOpens; | |
1310 | stats->value[TCPATTEMPTFAILS] = m.tcpAttemptFails; | |
1311 | stats->value[TCPESTABRESETS] = m.tcpEstabResets; | |
1312 | stats->value[TCPCURRESTAB] = m.tcpOutRsts; | |
1313 | stats->value[TCPINSEGS] = m.tcpCurrEstab; | |
1314 | stats->value[TCPOUTSEGS] = ((u64)m.tcpInSegs_hi << 32) + m.tcpInSegs_lo; | |
1315 | stats->value[TCPRETRANSSEGS] = ((u64)m.tcpOutSegs_hi << 32) + m.tcpOutSegs_lo; | |
1316 | stats->value[TCPINERRS] = ((u64)m.tcpRetransSeg_hi << 32) + m.tcpRetransSeg_lo, | |
1317 | stats->value[TCPOUTRSTS] = ((u64)m.tcpInErrs_hi << 32) + m.tcpInErrs_lo; | |
1318 | stats->value[TCPRTOMIN] = m.tcpRtoMin; | |
1319 | stats->value[TCPRTOMAX] = m.tcpRtoMax; | |
1320 | ||
1321 | return stats->num_counters; | |
14cc180f SW |
1322 | } |
1323 | ||
f4e91eb4 | 1324 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
f4e91eb4 TJ |
1325 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); |
1326 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
b038ced7 | 1327 | |
f4e91eb4 TJ |
1328 | static struct device_attribute *iwch_class_attributes[] = { |
1329 | &dev_attr_hw_rev, | |
f4e91eb4 | 1330 | &dev_attr_hca_type, |
14cc180f | 1331 | &dev_attr_board_id, |
b038ced7 SW |
1332 | }; |
1333 | ||
7738613e IW |
1334 | static int iwch_port_immutable(struct ib_device *ibdev, u8 port_num, |
1335 | struct ib_port_immutable *immutable) | |
1336 | { | |
1337 | struct ib_port_attr attr; | |
1338 | int err; | |
1339 | ||
1340 | err = iwch_query_port(ibdev, port_num, &attr); | |
1341 | if (err) | |
1342 | return err; | |
1343 | ||
1344 | immutable->pkey_tbl_len = attr.pkey_tbl_len; | |
1345 | immutable->gid_tbl_len = attr.gid_tbl_len; | |
f9b22e35 | 1346 | immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; |
7738613e IW |
1347 | |
1348 | return 0; | |
1349 | } | |
1350 | ||
e1803694 IW |
1351 | static void get_dev_fw_ver_str(struct ib_device *ibdev, char *str, |
1352 | size_t str_len) | |
1353 | { | |
1354 | struct iwch_dev *iwch_dev = to_iwch_dev(ibdev); | |
1355 | struct ethtool_drvinfo info; | |
1356 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; | |
1357 | ||
1358 | PDBG("%s dev 0x%p\n", __func__, iwch_dev); | |
1359 | lldev->ethtool_ops->get_drvinfo(lldev, &info); | |
1360 | snprintf(str, str_len, "%s", info.fw_version); | |
1361 | } | |
1362 | ||
b038ced7 SW |
1363 | int iwch_register_device(struct iwch_dev *dev) |
1364 | { | |
1365 | int ret; | |
1366 | int i; | |
1367 | ||
33718363 | 1368 | PDBG("%s iwch_dev %p\n", __func__, dev); |
b038ced7 SW |
1369 | strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX); |
1370 | memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); | |
1371 | memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); | |
1372 | dev->ibdev.owner = THIS_MODULE; | |
be43324d SW |
1373 | dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | |
1374 | IB_DEVICE_MEM_WINDOW | | |
1375 | IB_DEVICE_MEM_MGT_EXTENSIONS; | |
96f15c03 SW |
1376 | |
1377 | /* cxgb3 supports STag 0. */ | |
1378 | dev->ibdev.local_dma_lkey = 0; | |
b038ced7 SW |
1379 | |
1380 | dev->ibdev.uverbs_cmd_mask = | |
1381 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1382 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1383 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1384 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1385 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1386 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1387 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1388 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1389 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
1390 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
1391 | (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | | |
1392 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
1393 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
1394 | (1ull << IB_USER_VERBS_CMD_POLL_CQ) | | |
1395 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
1396 | (1ull << IB_USER_VERBS_CMD_POST_SEND) | | |
1397 | (1ull << IB_USER_VERBS_CMD_POST_RECV); | |
1398 | dev->ibdev.node_type = RDMA_NODE_RNIC; | |
1399 | memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC)); | |
1400 | dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports; | |
f4fd0b22 | 1401 | dev->ibdev.num_comp_vectors = 1; |
b038ced7 | 1402 | dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev); |
b038ced7 SW |
1403 | dev->ibdev.query_device = iwch_query_device; |
1404 | dev->ibdev.query_port = iwch_query_port; | |
b038ced7 SW |
1405 | dev->ibdev.query_pkey = iwch_query_pkey; |
1406 | dev->ibdev.query_gid = iwch_query_gid; | |
1407 | dev->ibdev.alloc_ucontext = iwch_alloc_ucontext; | |
1408 | dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext; | |
1409 | dev->ibdev.mmap = iwch_mmap; | |
1410 | dev->ibdev.alloc_pd = iwch_allocate_pd; | |
1411 | dev->ibdev.dealloc_pd = iwch_deallocate_pd; | |
1412 | dev->ibdev.create_ah = iwch_ah_create; | |
1413 | dev->ibdev.destroy_ah = iwch_ah_destroy; | |
1414 | dev->ibdev.create_qp = iwch_create_qp; | |
1415 | dev->ibdev.modify_qp = iwch_ib_modify_qp; | |
1416 | dev->ibdev.destroy_qp = iwch_destroy_qp; | |
1417 | dev->ibdev.create_cq = iwch_create_cq; | |
1418 | dev->ibdev.destroy_cq = iwch_destroy_cq; | |
1419 | dev->ibdev.resize_cq = iwch_resize_cq; | |
1420 | dev->ibdev.poll_cq = iwch_poll_cq; | |
1421 | dev->ibdev.get_dma_mr = iwch_get_dma_mr; | |
b038ced7 SW |
1422 | dev->ibdev.reg_user_mr = iwch_reg_user_mr; |
1423 | dev->ibdev.dereg_mr = iwch_dereg_mr; | |
1424 | dev->ibdev.alloc_mw = iwch_alloc_mw; | |
b038ced7 | 1425 | dev->ibdev.dealloc_mw = iwch_dealloc_mw; |
f683d3bd | 1426 | dev->ibdev.alloc_mr = iwch_alloc_mr; |
14fb4171 | 1427 | dev->ibdev.map_mr_sg = iwch_map_mr_sg; |
b038ced7 SW |
1428 | dev->ibdev.attach_mcast = iwch_multicast_attach; |
1429 | dev->ibdev.detach_mcast = iwch_multicast_detach; | |
1430 | dev->ibdev.process_mad = iwch_process_mad; | |
b038ced7 SW |
1431 | dev->ibdev.req_notify_cq = iwch_arm_cq; |
1432 | dev->ibdev.post_send = iwch_post_send; | |
1433 | dev->ibdev.post_recv = iwch_post_receive; | |
b40f4757 CL |
1434 | dev->ibdev.alloc_hw_stats = iwch_alloc_stats; |
1435 | dev->ibdev.get_hw_stats = iwch_get_mib; | |
b955150e | 1436 | dev->ibdev.uverbs_abi_ver = IWCH_UVERBS_ABI_VERSION; |
7738613e | 1437 | dev->ibdev.get_port_immutable = iwch_port_immutable; |
e1803694 | 1438 | dev->ibdev.get_dev_fw_str = get_dev_fw_ver_str; |
b038ced7 | 1439 | |
6abb6ea8 WC |
1440 | dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); |
1441 | if (!dev->ibdev.iwcm) | |
1442 | return -ENOMEM; | |
1443 | ||
b038ced7 SW |
1444 | dev->ibdev.iwcm->connect = iwch_connect; |
1445 | dev->ibdev.iwcm->accept = iwch_accept_cr; | |
1446 | dev->ibdev.iwcm->reject = iwch_reject_cr; | |
1447 | dev->ibdev.iwcm->create_listen = iwch_create_listen; | |
1448 | dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen; | |
1449 | dev->ibdev.iwcm->add_ref = iwch_qp_add_ref; | |
1450 | dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref; | |
1451 | dev->ibdev.iwcm->get_qp = iwch_get_qp; | |
ad202348 SW |
1452 | memcpy(dev->ibdev.iwcm->ifname, dev->rdev.t3cdev_p->lldev->name, |
1453 | sizeof(dev->ibdev.iwcm->ifname)); | |
b038ced7 | 1454 | |
9a6edb60 | 1455 | ret = ib_register_device(&dev->ibdev, NULL); |
b038ced7 SW |
1456 | if (ret) |
1457 | goto bail1; | |
1458 | ||
1459 | for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) { | |
f4e91eb4 TJ |
1460 | ret = device_create_file(&dev->ibdev.dev, |
1461 | iwch_class_attributes[i]); | |
b038ced7 SW |
1462 | if (ret) { |
1463 | goto bail2; | |
1464 | } | |
1465 | } | |
1466 | return 0; | |
1467 | bail2: | |
1468 | ib_unregister_device(&dev->ibdev); | |
1469 | bail1: | |
3793d2fc | 1470 | kfree(dev->ibdev.iwcm); |
b038ced7 SW |
1471 | return ret; |
1472 | } | |
1473 | ||
1474 | void iwch_unregister_device(struct iwch_dev *dev) | |
1475 | { | |
1476 | int i; | |
1477 | ||
33718363 | 1478 | PDBG("%s iwch_dev %p\n", __func__, dev); |
b038ced7 | 1479 | for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) |
f4e91eb4 TJ |
1480 | device_remove_file(&dev->ibdev.dev, |
1481 | iwch_class_attributes[i]); | |
b038ced7 | 1482 | ib_unregister_device(&dev->ibdev); |
3793d2fc | 1483 | kfree(dev->ibdev.iwcm); |
b038ced7 SW |
1484 | return; |
1485 | } |