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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> | |
589ee628 | 40 | #include <linux/sched/mm.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" | |
a85fb338 | 61 | #include <rdma/cxgb3-abi.h> |
14cc180f | 62 | #include "common.h" |
b038ced7 | 63 | |
b038ced7 | 64 | static struct ib_ah *iwch_ah_create(struct ib_pd *pd, |
90898850 | 65 | struct rdma_ah_attr *ah_attr, |
477864c8 | 66 | struct ib_udata *udata) |
b038ced7 SW |
67 | { |
68 | return ERR_PTR(-ENOSYS); | |
69 | } | |
70 | ||
71 | static int iwch_ah_destroy(struct ib_ah *ah) | |
72 | { | |
73 | return -ENOSYS; | |
74 | } | |
75 | ||
76 | static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
77 | { | |
78 | return -ENOSYS; | |
79 | } | |
80 | ||
81 | static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
82 | { | |
83 | return -ENOSYS; | |
84 | } | |
85 | ||
86 | static int iwch_process_mad(struct ib_device *ibdev, | |
87 | int mad_flags, | |
88 | u8 port_num, | |
a97e2d86 IW |
89 | const struct ib_wc *in_wc, |
90 | const struct ib_grh *in_grh, | |
4cd7c947 IW |
91 | const struct ib_mad_hdr *in_mad, |
92 | size_t in_mad_size, | |
93 | struct ib_mad_hdr *out_mad, | |
94 | size_t *out_mad_size, | |
95 | u16 *out_mad_pkey_index) | |
b038ced7 SW |
96 | { |
97 | return -ENOSYS; | |
98 | } | |
99 | ||
100 | static int iwch_dealloc_ucontext(struct ib_ucontext *context) | |
101 | { | |
102 | struct iwch_dev *rhp = to_iwch_dev(context->device); | |
103 | struct iwch_ucontext *ucontext = to_iwch_ucontext(context); | |
104 | struct iwch_mm_entry *mm, *tmp; | |
105 | ||
b7b37ee0 | 106 | pr_debug("%s context %p\n", __func__, context); |
b038ced7 SW |
107 | list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry) |
108 | kfree(mm); | |
109 | cxio_release_ucontext(&rhp->rdev, &ucontext->uctx); | |
110 | kfree(ucontext); | |
111 | return 0; | |
112 | } | |
113 | ||
114 | static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev, | |
115 | struct ib_udata *udata) | |
116 | { | |
117 | struct iwch_ucontext *context; | |
118 | struct iwch_dev *rhp = to_iwch_dev(ibdev); | |
119 | ||
b7b37ee0 | 120 | pr_debug("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
121 | context = kzalloc(sizeof(*context), GFP_KERNEL); |
122 | if (!context) | |
123 | return ERR_PTR(-ENOMEM); | |
124 | cxio_init_ucontext(&rhp->rdev, &context->uctx); | |
125 | INIT_LIST_HEAD(&context->mmaps); | |
126 | spin_lock_init(&context->mmap_lock); | |
127 | return &context->ibucontext; | |
128 | } | |
129 | ||
130 | static int iwch_destroy_cq(struct ib_cq *ib_cq) | |
131 | { | |
132 | struct iwch_cq *chp; | |
133 | ||
b7b37ee0 | 134 | pr_debug("%s ib_cq %p\n", __func__, ib_cq); |
b038ced7 SW |
135 | chp = to_iwch_cq(ib_cq); |
136 | ||
137 | remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid); | |
138 | atomic_dec(&chp->refcnt); | |
139 | wait_event(chp->wait, !atomic_read(&chp->refcnt)); | |
140 | ||
141 | cxio_destroy_cq(&chp->rhp->rdev, &chp->cq); | |
142 | kfree(chp); | |
143 | return 0; | |
144 | } | |
145 | ||
bcf4c1ea MB |
146 | static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, |
147 | const struct ib_cq_init_attr *attr, | |
148 | struct ib_ucontext *ib_context, | |
149 | struct ib_udata *udata) | |
b038ced7 | 150 | { |
bcf4c1ea | 151 | int entries = attr->cqe; |
b038ced7 SW |
152 | struct iwch_dev *rhp; |
153 | struct iwch_cq *chp; | |
154 | struct iwch_create_cq_resp uresp; | |
155 | struct iwch_create_cq_req ureq; | |
156 | struct iwch_ucontext *ucontext = NULL; | |
b955150e SW |
157 | static int warned; |
158 | size_t resplen; | |
b038ced7 | 159 | |
b7b37ee0 | 160 | pr_debug("%s ib_dev %p entries %d\n", __func__, ibdev, entries); |
bcf4c1ea MB |
161 | if (attr->flags) |
162 | return ERR_PTR(-EINVAL); | |
163 | ||
b038ced7 SW |
164 | rhp = to_iwch_dev(ibdev); |
165 | chp = kzalloc(sizeof(*chp), GFP_KERNEL); | |
166 | if (!chp) | |
167 | return ERR_PTR(-ENOMEM); | |
168 | ||
169 | if (ib_context) { | |
170 | ucontext = to_iwch_ucontext(ib_context); | |
171 | if (!t3a_device(rhp)) { | |
172 | if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) { | |
173 | kfree(chp); | |
174 | return ERR_PTR(-EFAULT); | |
175 | } | |
176 | chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr; | |
177 | } | |
178 | } | |
179 | ||
180 | if (t3a_device(rhp)) { | |
181 | ||
182 | /* | |
183 | * T3A: Add some fluff to handle extra CQEs inserted | |
184 | * for various errors. | |
185 | * Additional CQE possibilities: | |
186 | * TERMINATE, | |
187 | * incoming RDMA WRITE Failures | |
188 | * incoming RDMA READ REQUEST FAILUREs | |
189 | * NOTE: We cannot ensure the CQ won't overflow. | |
190 | */ | |
191 | entries += 16; | |
192 | } | |
193 | entries = roundup_pow_of_two(entries); | |
194 | chp->cq.size_log2 = ilog2(entries); | |
195 | ||
5279d3ac | 196 | if (cxio_create_cq(&rhp->rdev, &chp->cq, !ucontext)) { |
b038ced7 SW |
197 | kfree(chp); |
198 | return ERR_PTR(-ENOMEM); | |
199 | } | |
200 | chp->rhp = rhp; | |
4fa45725 | 201 | chp->ibcq.cqe = 1 << chp->cq.size_log2; |
b038ced7 | 202 | spin_lock_init(&chp->lock); |
f7cc25d0 | 203 | spin_lock_init(&chp->comp_handler_lock); |
b038ced7 SW |
204 | atomic_set(&chp->refcnt, 1); |
205 | init_waitqueue_head(&chp->wait); | |
13a23933 SW |
206 | if (insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid)) { |
207 | cxio_destroy_cq(&chp->rhp->rdev, &chp->cq); | |
208 | kfree(chp); | |
209 | return ERR_PTR(-ENOMEM); | |
210 | } | |
b038ced7 SW |
211 | |
212 | if (ucontext) { | |
213 | struct iwch_mm_entry *mm; | |
214 | ||
215 | mm = kmalloc(sizeof *mm, GFP_KERNEL); | |
216 | if (!mm) { | |
217 | iwch_destroy_cq(&chp->ibcq); | |
218 | return ERR_PTR(-ENOMEM); | |
219 | } | |
220 | uresp.cqid = chp->cq.cqid; | |
221 | uresp.size_log2 = chp->cq.size_log2; | |
222 | spin_lock(&ucontext->mmap_lock); | |
223 | uresp.key = ucontext->key; | |
224 | ucontext->key += PAGE_SIZE; | |
225 | spin_unlock(&ucontext->mmap_lock); | |
b955150e SW |
226 | mm->key = uresp.key; |
227 | mm->addr = virt_to_phys(chp->cq.queue); | |
228 | if (udata->outlen < sizeof uresp) { | |
229 | if (!warned++) | |
46b2d4e8 | 230 | pr_warn("Warning - downlevel libcxgb3 (non-fatal)\n"); |
b955150e SW |
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 | } | |
b7b37ee0 JP |
248 | pr_debug("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); | |
b038ced7 SW |
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 | ||
b7b37ee0 | 261 | pr_debug("%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) { | |
46b2d4e8 | 308 | pr_err("%s - cxio_destroy_cq failed %d\n", __func__, ret); |
b038ced7 SW |
309 | } |
310 | ||
311 | /* add user hooks here */ | |
312 | ||
313 | /* resume qps */ | |
314 | ret = iwch_resume_qps(chp); | |
315 | return ret; | |
316 | #else | |
317 | return -ENOSYS; | |
318 | #endif | |
319 | } | |
320 | ||
ed23a727 | 321 | static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) |
b038ced7 SW |
322 | { |
323 | struct iwch_dev *rhp; | |
324 | struct iwch_cq *chp; | |
325 | enum t3_cq_opcode cq_op; | |
326 | int err; | |
327 | unsigned long flag; | |
328 | u32 rptr; | |
329 | ||
330 | chp = to_iwch_cq(ibcq); | |
331 | rhp = chp->rhp; | |
ed23a727 | 332 | if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED) |
b038ced7 SW |
333 | cq_op = CQ_ARM_SE; |
334 | else | |
335 | cq_op = CQ_ARM_AN; | |
336 | if (chp->user_rptr_addr) { | |
337 | if (get_user(rptr, chp->user_rptr_addr)) | |
338 | return -EFAULT; | |
339 | spin_lock_irqsave(&chp->lock, flag); | |
340 | chp->cq.rptr = rptr; | |
341 | } else | |
342 | spin_lock_irqsave(&chp->lock, flag); | |
b7b37ee0 | 343 | pr_debug("%s rptr 0x%x\n", __func__, chp->cq.rptr); |
b038ced7 SW |
344 | err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0); |
345 | spin_unlock_irqrestore(&chp->lock, flag); | |
ed23a727 | 346 | if (err < 0) |
46b2d4e8 | 347 | pr_err("Error %d rearming CQID 0x%x\n", err, chp->cq.cqid); |
ed23a727 RD |
348 | if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS)) |
349 | err = 0; | |
b038ced7 SW |
350 | return err; |
351 | } | |
352 | ||
353 | static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
354 | { | |
355 | int len = vma->vm_end - vma->vm_start; | |
356 | u32 key = vma->vm_pgoff << PAGE_SHIFT; | |
357 | struct cxio_rdev *rdev_p; | |
358 | int ret = 0; | |
359 | struct iwch_mm_entry *mm; | |
360 | struct iwch_ucontext *ucontext; | |
aeb100e2 | 361 | u64 addr; |
b038ced7 | 362 | |
b7b37ee0 JP |
363 | pr_debug("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff, |
364 | key, len); | |
b038ced7 SW |
365 | |
366 | if (vma->vm_start & (PAGE_SIZE-1)) { | |
367 | return -EINVAL; | |
368 | } | |
369 | ||
370 | rdev_p = &(to_iwch_dev(context->device)->rdev); | |
371 | ucontext = to_iwch_ucontext(context); | |
372 | ||
373 | mm = remove_mmap(ucontext, key, len); | |
374 | if (!mm) | |
375 | return -EINVAL; | |
aeb100e2 | 376 | addr = mm->addr; |
b038ced7 SW |
377 | kfree(mm); |
378 | ||
aeb100e2 SW |
379 | if ((addr >= rdev_p->rnic_info.udbell_physbase) && |
380 | (addr < (rdev_p->rnic_info.udbell_physbase + | |
b038ced7 SW |
381 | rdev_p->rnic_info.udbell_len))) { |
382 | ||
383 | /* | |
384 | * Map T3 DB register. | |
385 | */ | |
386 | if (vma->vm_flags & VM_READ) { | |
387 | return -EPERM; | |
388 | } | |
389 | ||
390 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
391 | vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; | |
392 | vma->vm_flags &= ~VM_MAYREAD; | |
393 | ret = io_remap_pfn_range(vma, vma->vm_start, | |
aeb100e2 | 394 | addr >> PAGE_SHIFT, |
b038ced7 SW |
395 | len, vma->vm_page_prot); |
396 | } else { | |
397 | ||
398 | /* | |
399 | * Map WQ or CQ contig dma memory... | |
400 | */ | |
401 | ret = remap_pfn_range(vma, vma->vm_start, | |
aeb100e2 | 402 | addr >> PAGE_SHIFT, |
b038ced7 SW |
403 | len, vma->vm_page_prot); |
404 | } | |
405 | ||
406 | return ret; | |
407 | } | |
408 | ||
409 | static int iwch_deallocate_pd(struct ib_pd *pd) | |
410 | { | |
411 | struct iwch_dev *rhp; | |
412 | struct iwch_pd *php; | |
413 | ||
414 | php = to_iwch_pd(pd); | |
415 | rhp = php->rhp; | |
b7b37ee0 | 416 | pr_debug("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid); |
b038ced7 SW |
417 | cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid); |
418 | kfree(php); | |
419 | return 0; | |
420 | } | |
421 | ||
422 | static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev, | |
423 | struct ib_ucontext *context, | |
424 | struct ib_udata *udata) | |
425 | { | |
426 | struct iwch_pd *php; | |
427 | u32 pdid; | |
428 | struct iwch_dev *rhp; | |
429 | ||
b7b37ee0 | 430 | pr_debug("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
431 | rhp = (struct iwch_dev *) ibdev; |
432 | pdid = cxio_hal_get_pdid(rhp->rdev.rscp); | |
433 | if (!pdid) | |
434 | return ERR_PTR(-EINVAL); | |
435 | php = kzalloc(sizeof(*php), GFP_KERNEL); | |
436 | if (!php) { | |
437 | cxio_hal_put_pdid(rhp->rdev.rscp, pdid); | |
438 | return ERR_PTR(-ENOMEM); | |
439 | } | |
440 | php->pdid = pdid; | |
441 | php->rhp = rhp; | |
442 | if (context) { | |
443 | if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) { | |
444 | iwch_deallocate_pd(&php->ibpd); | |
445 | return ERR_PTR(-EFAULT); | |
446 | } | |
447 | } | |
b7b37ee0 | 448 | pr_debug("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php); |
b038ced7 SW |
449 | return &php->ibpd; |
450 | } | |
451 | ||
452 | static int iwch_dereg_mr(struct ib_mr *ib_mr) | |
453 | { | |
454 | struct iwch_dev *rhp; | |
455 | struct iwch_mr *mhp; | |
456 | u32 mmid; | |
457 | ||
b7b37ee0 | 458 | pr_debug("%s ib_mr %p\n", __func__, ib_mr); |
b038ced7 SW |
459 | |
460 | mhp = to_iwch_mr(ib_mr); | |
14fb4171 | 461 | kfree(mhp->pages); |
b038ced7 SW |
462 | rhp = mhp->rhp; |
463 | mmid = mhp->attr.stag >> 8; | |
464 | cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, | |
465 | mhp->attr.pbl_addr); | |
273748cc | 466 | iwch_free_pbl(mhp); |
b038ced7 SW |
467 | remove_handle(rhp, &rhp->mmidr, mmid); |
468 | if (mhp->kva) | |
469 | kfree((void *) (unsigned long) mhp->kva); | |
f7c6a7b5 RD |
470 | if (mhp->umem) |
471 | ib_umem_release(mhp->umem); | |
b7b37ee0 | 472 | pr_debug("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp); |
b038ced7 SW |
473 | kfree(mhp); |
474 | return 0; | |
475 | } | |
476 | ||
35cb3fc0 | 477 | static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc) |
b038ced7 | 478 | { |
35cb3fc0 CH |
479 | const u64 total_size = 0xffffffff; |
480 | const u64 mask = (total_size + PAGE_SIZE - 1) & PAGE_MASK; | |
481 | struct iwch_pd *php = to_iwch_pd(pd); | |
482 | struct iwch_dev *rhp = php->rhp; | |
b038ced7 | 483 | struct iwch_mr *mhp; |
35cb3fc0 CH |
484 | __be64 *page_list; |
485 | int shift = 26, npages, ret, i; | |
b038ced7 | 486 | |
b7b37ee0 | 487 | pr_debug("%s ib_pd %p\n", __func__, pd); |
35cb3fc0 CH |
488 | |
489 | /* | |
490 | * T3 only supports 32 bits of size. | |
491 | */ | |
492 | if (sizeof(phys_addr_t) > 4) { | |
46b2d4e8 | 493 | pr_warn_once("Cannot support dma_mrs on this platform\n"); |
35cb3fc0 CH |
494 | return ERR_PTR(-ENOTSUPP); |
495 | } | |
b038ced7 | 496 | |
b038ced7 SW |
497 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); |
498 | if (!mhp) | |
499 | return ERR_PTR(-ENOMEM); | |
500 | ||
273748cc RD |
501 | mhp->rhp = rhp; |
502 | ||
35cb3fc0 CH |
503 | npages = (total_size + (1ULL << shift) - 1) >> shift; |
504 | if (!npages) { | |
b038ced7 SW |
505 | ret = -EINVAL; |
506 | goto err; | |
507 | } | |
508 | ||
35cb3fc0 CH |
509 | page_list = kmalloc_array(npages, sizeof(u64), GFP_KERNEL); |
510 | if (!page_list) { | |
511 | ret = -ENOMEM; | |
b038ced7 SW |
512 | goto err; |
513 | } | |
514 | ||
35cb3fc0 CH |
515 | for (i = 0; i < npages; i++) |
516 | page_list[i] = cpu_to_be64((u64)i << shift); | |
517 | ||
b7b37ee0 JP |
518 | pr_debug("%s mask 0x%llx shift %d len %lld pbl_size %d\n", |
519 | __func__, mask, shift, total_size, npages); | |
b038ced7 | 520 | |
273748cc RD |
521 | ret = iwch_alloc_pbl(mhp, npages); |
522 | if (ret) { | |
523 | kfree(page_list); | |
524 | goto err_pbl; | |
525 | } | |
526 | ||
527 | ret = iwch_write_pbl(mhp, page_list, npages, 0); | |
528 | kfree(page_list); | |
529 | if (ret) | |
530 | goto err_pbl; | |
531 | ||
b038ced7 SW |
532 | mhp->attr.pdid = php->pdid; |
533 | mhp->attr.zbva = 0; | |
534 | ||
e64518f3 | 535 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
35cb3fc0 | 536 | mhp->attr.va_fbo = 0; |
b038ced7 SW |
537 | mhp->attr.page_size = shift - 12; |
538 | ||
539 | mhp->attr.len = (u32) total_size; | |
540 | mhp->attr.pbl_size = npages; | |
273748cc RD |
541 | ret = iwch_register_mem(rhp, php, mhp, shift); |
542 | if (ret) | |
543 | goto err_pbl; | |
544 | ||
b038ced7 | 545 | return &mhp->ibmr; |
273748cc RD |
546 | |
547 | err_pbl: | |
548 | iwch_free_pbl(mhp); | |
549 | ||
b038ced7 SW |
550 | err: |
551 | kfree(mhp); | |
552 | return ERR_PTR(ret); | |
b038ced7 SW |
553 | } |
554 | ||
f7c6a7b5 RD |
555 | static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, |
556 | u64 virt, int acc, struct ib_udata *udata) | |
b038ced7 SW |
557 | { |
558 | __be64 *pages; | |
559 | int shift, n, len; | |
eeb8461e | 560 | int i, k, entry; |
b038ced7 | 561 | int err = 0; |
b038ced7 SW |
562 | struct iwch_dev *rhp; |
563 | struct iwch_pd *php; | |
564 | struct iwch_mr *mhp; | |
565 | struct iwch_reg_user_mr_resp uresp; | |
eeb8461e | 566 | struct scatterlist *sg; |
b7b37ee0 | 567 | pr_debug("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
568 | |
569 | php = to_iwch_pd(pd); | |
570 | rhp = php->rhp; | |
571 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
572 | if (!mhp) | |
573 | return ERR_PTR(-ENOMEM); | |
574 | ||
273748cc RD |
575 | mhp->rhp = rhp; |
576 | ||
cb9fbc5c | 577 | mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0); |
f7c6a7b5 RD |
578 | if (IS_ERR(mhp->umem)) { |
579 | err = PTR_ERR(mhp->umem); | |
580 | kfree(mhp); | |
581 | return ERR_PTR(err); | |
582 | } | |
583 | ||
3e7e1193 | 584 | shift = mhp->umem->page_shift; |
f7c6a7b5 | 585 | |
eeb8461e | 586 | n = mhp->umem->nmap; |
b038ced7 | 587 | |
273748cc RD |
588 | err = iwch_alloc_pbl(mhp, n); |
589 | if (err) | |
590 | goto err; | |
591 | ||
592 | pages = (__be64 *) __get_free_page(GFP_KERNEL); | |
b038ced7 SW |
593 | if (!pages) { |
594 | err = -ENOMEM; | |
273748cc | 595 | goto err_pbl; |
b038ced7 SW |
596 | } |
597 | ||
b038ced7 SW |
598 | i = n = 0; |
599 | ||
eeb8461e YH |
600 | for_each_sg(mhp->umem->sg_head.sgl, sg, mhp->umem->nmap, entry) { |
601 | len = sg_dma_len(sg) >> shift; | |
b038ced7 | 602 | for (k = 0; k < len; ++k) { |
eeb8461e | 603 | pages[i++] = cpu_to_be64(sg_dma_address(sg) + |
3e7e1193 | 604 | (k << shift)); |
273748cc RD |
605 | if (i == PAGE_SIZE / sizeof *pages) { |
606 | err = iwch_write_pbl(mhp, pages, i, n); | |
607 | if (err) | |
608 | goto pbl_done; | |
609 | n += i; | |
610 | i = 0; | |
611 | } | |
b038ced7 | 612 | } |
eeb8461e | 613 | } |
b038ced7 | 614 | |
273748cc RD |
615 | if (i) |
616 | err = iwch_write_pbl(mhp, pages, i, n); | |
617 | ||
618 | pbl_done: | |
619 | free_page((unsigned long) pages); | |
620 | if (err) | |
621 | goto err_pbl; | |
622 | ||
b038ced7 SW |
623 | mhp->attr.pdid = php->pdid; |
624 | mhp->attr.zbva = 0; | |
e64518f3 | 625 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
f7c6a7b5 | 626 | mhp->attr.va_fbo = virt; |
b038ced7 | 627 | mhp->attr.page_size = shift - 12; |
f7c6a7b5 | 628 | mhp->attr.len = (u32) length; |
273748cc RD |
629 | |
630 | err = iwch_register_mem(rhp, php, mhp, shift); | |
b038ced7 | 631 | if (err) |
273748cc | 632 | goto err_pbl; |
b038ced7 | 633 | |
8176d297 | 634 | if (udata && !t3a_device(rhp)) { |
b038ced7 | 635 | uresp.pbl_addr = (mhp->attr.pbl_addr - |
273748cc | 636 | rhp->rdev.rnic_info.pbl_base) >> 3; |
b7b37ee0 JP |
637 | pr_debug("%s user resp pbl_addr 0x%x\n", __func__, |
638 | uresp.pbl_addr); | |
b038ced7 SW |
639 | |
640 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
641 | iwch_dereg_mr(&mhp->ibmr); | |
642 | err = -EFAULT; | |
643 | goto err; | |
644 | } | |
645 | } | |
646 | ||
647 | return &mhp->ibmr; | |
648 | ||
273748cc RD |
649 | err_pbl: |
650 | iwch_free_pbl(mhp); | |
651 | ||
b038ced7 | 652 | err: |
f7c6a7b5 | 653 | ib_umem_release(mhp->umem); |
b038ced7 SW |
654 | kfree(mhp); |
655 | return ERR_PTR(err); | |
656 | } | |
657 | ||
b2a239df MB |
658 | static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd, enum ib_mw_type type, |
659 | struct ib_udata *udata) | |
b038ced7 SW |
660 | { |
661 | struct iwch_dev *rhp; | |
662 | struct iwch_pd *php; | |
663 | struct iwch_mw *mhp; | |
664 | u32 mmid; | |
665 | u32 stag = 0; | |
666 | int ret; | |
667 | ||
7083e42e SM |
668 | if (type != IB_MW_TYPE_1) |
669 | return ERR_PTR(-EINVAL); | |
670 | ||
b038ced7 SW |
671 | php = to_iwch_pd(pd); |
672 | rhp = php->rhp; | |
673 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
674 | if (!mhp) | |
675 | return ERR_PTR(-ENOMEM); | |
676 | ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid); | |
677 | if (ret) { | |
678 | kfree(mhp); | |
679 | return ERR_PTR(ret); | |
680 | } | |
681 | mhp->rhp = rhp; | |
682 | mhp->attr.pdid = php->pdid; | |
683 | mhp->attr.type = TPT_MW; | |
684 | mhp->attr.stag = stag; | |
685 | mmid = (stag) >> 8; | |
70fe1796 | 686 | mhp->ibmw.rkey = stag; |
13a23933 SW |
687 | if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) { |
688 | cxio_deallocate_window(&rhp->rdev, mhp->attr.stag); | |
689 | kfree(mhp); | |
690 | return ERR_PTR(-ENOMEM); | |
691 | } | |
b7b37ee0 | 692 | pr_debug("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); |
b038ced7 SW |
693 | return &(mhp->ibmw); |
694 | } | |
695 | ||
696 | static int iwch_dealloc_mw(struct ib_mw *mw) | |
697 | { | |
698 | struct iwch_dev *rhp; | |
699 | struct iwch_mw *mhp; | |
700 | u32 mmid; | |
701 | ||
702 | mhp = to_iwch_mw(mw); | |
703 | rhp = mhp->rhp; | |
704 | mmid = (mw->rkey) >> 8; | |
705 | cxio_deallocate_window(&rhp->rdev, mhp->attr.stag); | |
706 | remove_handle(rhp, &rhp->mmidr, mmid); | |
b7b37ee0 | 707 | pr_debug("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp); |
fe194f19 | 708 | kfree(mhp); |
b038ced7 SW |
709 | return 0; |
710 | } | |
711 | ||
f683d3bd SG |
712 | static struct ib_mr *iwch_alloc_mr(struct ib_pd *pd, |
713 | enum ib_mr_type mr_type, | |
714 | u32 max_num_sg) | |
e7e55829 SW |
715 | { |
716 | struct iwch_dev *rhp; | |
717 | struct iwch_pd *php; | |
718 | struct iwch_mr *mhp; | |
719 | u32 mmid; | |
720 | u32 stag = 0; | |
9064d605 | 721 | int ret = -ENOMEM; |
e7e55829 | 722 | |
f683d3bd SG |
723 | if (mr_type != IB_MR_TYPE_MEM_REG || |
724 | max_num_sg > T3_MAX_FASTREG_DEPTH) | |
725 | return ERR_PTR(-EINVAL); | |
726 | ||
e7e55829 SW |
727 | php = to_iwch_pd(pd); |
728 | rhp = php->rhp; | |
729 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
730 | if (!mhp) | |
13a23933 | 731 | goto err; |
e7e55829 | 732 | |
14fb4171 | 733 | mhp->pages = kcalloc(max_num_sg, sizeof(u64), GFP_KERNEL); |
9064d605 | 734 | if (!mhp->pages) |
14fb4171 | 735 | goto pl_err; |
14fb4171 | 736 | |
e7e55829 | 737 | mhp->rhp = rhp; |
f683d3bd | 738 | ret = iwch_alloc_pbl(mhp, max_num_sg); |
13a23933 SW |
739 | if (ret) |
740 | goto err1; | |
f683d3bd | 741 | mhp->attr.pbl_size = max_num_sg; |
e7e55829 SW |
742 | ret = cxio_allocate_stag(&rhp->rdev, &stag, php->pdid, |
743 | mhp->attr.pbl_size, mhp->attr.pbl_addr); | |
13a23933 SW |
744 | if (ret) |
745 | goto err2; | |
e7e55829 SW |
746 | mhp->attr.pdid = php->pdid; |
747 | mhp->attr.type = TPT_NON_SHARED_MR; | |
748 | mhp->attr.stag = stag; | |
749 | mhp->attr.state = 1; | |
750 | mmid = (stag) >> 8; | |
751 | mhp->ibmr.rkey = mhp->ibmr.lkey = stag; | |
9064d605 DC |
752 | ret = insert_handle(rhp, &rhp->mmidr, mhp, mmid); |
753 | if (ret) | |
13a23933 SW |
754 | goto err3; |
755 | ||
b7b37ee0 | 756 | pr_debug("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); |
e7e55829 | 757 | return &(mhp->ibmr); |
13a23933 SW |
758 | err3: |
759 | cxio_dereg_mem(&rhp->rdev, stag, mhp->attr.pbl_size, | |
760 | mhp->attr.pbl_addr); | |
761 | err2: | |
762 | iwch_free_pbl(mhp); | |
763 | err1: | |
14fb4171 SG |
764 | kfree(mhp->pages); |
765 | pl_err: | |
13a23933 SW |
766 | kfree(mhp); |
767 | err: | |
768 | return ERR_PTR(ret); | |
e7e55829 SW |
769 | } |
770 | ||
14fb4171 SG |
771 | static int iwch_set_page(struct ib_mr *ibmr, u64 addr) |
772 | { | |
773 | struct iwch_mr *mhp = to_iwch_mr(ibmr); | |
774 | ||
775 | if (unlikely(mhp->npages == mhp->attr.pbl_size)) | |
776 | return -ENOMEM; | |
777 | ||
778 | mhp->pages[mhp->npages++] = addr; | |
779 | ||
780 | return 0; | |
781 | } | |
782 | ||
ff2ba993 | 783 | static int iwch_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, |
9aa8b321 | 784 | int sg_nents, unsigned int *sg_offset) |
14fb4171 SG |
785 | { |
786 | struct iwch_mr *mhp = to_iwch_mr(ibmr); | |
787 | ||
788 | mhp->npages = 0; | |
789 | ||
ff2ba993 | 790 | return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, iwch_set_page); |
14fb4171 SG |
791 | } |
792 | ||
b038ced7 SW |
793 | static int iwch_destroy_qp(struct ib_qp *ib_qp) |
794 | { | |
795 | struct iwch_dev *rhp; | |
796 | struct iwch_qp *qhp; | |
797 | struct iwch_qp_attributes attrs; | |
798 | struct iwch_ucontext *ucontext; | |
799 | ||
800 | qhp = to_iwch_qp(ib_qp); | |
801 | rhp = qhp->rhp; | |
802 | ||
2df50da0 SW |
803 | attrs.next_state = IWCH_QP_STATE_ERROR; |
804 | iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0); | |
b038ced7 SW |
805 | wait_event(qhp->wait, !qhp->ep); |
806 | ||
807 | remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid); | |
808 | ||
809 | atomic_dec(&qhp->refcnt); | |
810 | wait_event(qhp->wait, !atomic_read(&qhp->refcnt)); | |
811 | ||
812 | ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context) | |
813 | : NULL; | |
814 | cxio_destroy_qp(&rhp->rdev, &qhp->wq, | |
815 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx); | |
816 | ||
b7b37ee0 JP |
817 | pr_debug("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__, |
818 | ib_qp, qhp->wq.qpid, qhp); | |
b038ced7 SW |
819 | kfree(qhp); |
820 | return 0; | |
821 | } | |
822 | ||
823 | static struct ib_qp *iwch_create_qp(struct ib_pd *pd, | |
824 | struct ib_qp_init_attr *attrs, | |
825 | struct ib_udata *udata) | |
826 | { | |
827 | struct iwch_dev *rhp; | |
828 | struct iwch_qp *qhp; | |
829 | struct iwch_pd *php; | |
830 | struct iwch_cq *schp; | |
831 | struct iwch_cq *rchp; | |
832 | struct iwch_create_qp_resp uresp; | |
833 | int wqsize, sqsize, rqsize; | |
834 | struct iwch_ucontext *ucontext; | |
835 | ||
b7b37ee0 | 836 | pr_debug("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
837 | if (attrs->qp_type != IB_QPT_RC) |
838 | return ERR_PTR(-EINVAL); | |
839 | php = to_iwch_pd(pd); | |
840 | rhp = php->rhp; | |
841 | schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid); | |
842 | rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid); | |
843 | if (!schp || !rchp) | |
844 | return ERR_PTR(-EINVAL); | |
845 | ||
846 | /* The RQT size must be # of entries + 1 rounded up to a power of two */ | |
847 | rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr); | |
848 | if (rqsize == attrs->cap.max_recv_wr) | |
849 | rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1); | |
850 | ||
851 | /* T3 doesn't support RQT depth < 16 */ | |
852 | if (rqsize < 16) | |
853 | rqsize = 16; | |
854 | ||
855 | if (rqsize > T3_MAX_RQ_SIZE) | |
856 | return ERR_PTR(-EINVAL); | |
857 | ||
1860cdf8 SW |
858 | if (attrs->cap.max_inline_data > T3_MAX_INLINE) |
859 | return ERR_PTR(-EINVAL); | |
860 | ||
b038ced7 SW |
861 | /* |
862 | * NOTE: The SQ and total WQ sizes don't need to be | |
863 | * a power of two. However, all the code assumes | |
864 | * they are. EG: Q_FREECNT() and friends. | |
865 | */ | |
866 | sqsize = roundup_pow_of_two(attrs->cap.max_send_wr); | |
867 | wqsize = roundup_pow_of_two(rqsize + sqsize); | |
e7e55829 SW |
868 | |
869 | /* | |
870 | * Kernel users need more wq space for fastreg WRs which can take | |
871 | * 2 WR fragments. | |
872 | */ | |
873 | ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL; | |
874 | if (!ucontext && wqsize < (rqsize + (2 * sqsize))) | |
875 | wqsize = roundup_pow_of_two(rqsize + | |
876 | roundup_pow_of_two(attrs->cap.max_send_wr * 2)); | |
b7b37ee0 JP |
877 | pr_debug("%s wqsize %d sqsize %d rqsize %d\n", __func__, |
878 | wqsize, sqsize, rqsize); | |
b038ced7 SW |
879 | qhp = kzalloc(sizeof(*qhp), GFP_KERNEL); |
880 | if (!qhp) | |
881 | return ERR_PTR(-ENOMEM); | |
882 | qhp->wq.size_log2 = ilog2(wqsize); | |
883 | qhp->wq.rq_size_log2 = ilog2(rqsize); | |
884 | qhp->wq.sq_size_log2 = ilog2(sqsize); | |
b038ced7 SW |
885 | if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq, |
886 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) { | |
887 | kfree(qhp); | |
888 | return ERR_PTR(-ENOMEM); | |
889 | } | |
1bab74e6 | 890 | |
b038ced7 SW |
891 | attrs->cap.max_recv_wr = rqsize - 1; |
892 | attrs->cap.max_send_wr = sqsize; | |
1bab74e6 JM |
893 | attrs->cap.max_inline_data = T3_MAX_INLINE; |
894 | ||
b038ced7 SW |
895 | qhp->rhp = rhp; |
896 | qhp->attr.pd = php->pdid; | |
897 | qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid; | |
898 | qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid; | |
899 | qhp->attr.sq_num_entries = attrs->cap.max_send_wr; | |
900 | qhp->attr.rq_num_entries = attrs->cap.max_recv_wr; | |
901 | qhp->attr.sq_max_sges = attrs->cap.max_send_sge; | |
902 | qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge; | |
903 | qhp->attr.rq_max_sges = attrs->cap.max_recv_sge; | |
904 | qhp->attr.state = IWCH_QP_STATE_IDLE; | |
905 | qhp->attr.next_state = IWCH_QP_STATE_IDLE; | |
906 | ||
907 | /* | |
908 | * XXX - These don't get passed in from the openib user | |
909 | * at create time. The CM sets them via a QP modify. | |
910 | * Need to fix... I think the CM should | |
911 | */ | |
912 | qhp->attr.enable_rdma_read = 1; | |
913 | qhp->attr.enable_rdma_write = 1; | |
914 | qhp->attr.enable_bind = 1; | |
915 | qhp->attr.max_ord = 1; | |
916 | qhp->attr.max_ird = 1; | |
917 | ||
918 | spin_lock_init(&qhp->lock); | |
919 | init_waitqueue_head(&qhp->wait); | |
920 | atomic_set(&qhp->refcnt, 1); | |
13a23933 SW |
921 | |
922 | if (insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid)) { | |
923 | cxio_destroy_qp(&rhp->rdev, &qhp->wq, | |
924 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx); | |
925 | kfree(qhp); | |
926 | return ERR_PTR(-ENOMEM); | |
927 | } | |
b038ced7 SW |
928 | |
929 | if (udata) { | |
930 | ||
931 | struct iwch_mm_entry *mm1, *mm2; | |
932 | ||
933 | mm1 = kmalloc(sizeof *mm1, GFP_KERNEL); | |
934 | if (!mm1) { | |
935 | iwch_destroy_qp(&qhp->ibqp); | |
936 | return ERR_PTR(-ENOMEM); | |
937 | } | |
938 | ||
939 | mm2 = kmalloc(sizeof *mm2, GFP_KERNEL); | |
940 | if (!mm2) { | |
941 | kfree(mm1); | |
942 | iwch_destroy_qp(&qhp->ibqp); | |
943 | return ERR_PTR(-ENOMEM); | |
944 | } | |
945 | ||
946 | uresp.qpid = qhp->wq.qpid; | |
947 | uresp.size_log2 = qhp->wq.size_log2; | |
948 | uresp.sq_size_log2 = qhp->wq.sq_size_log2; | |
949 | uresp.rq_size_log2 = qhp->wq.rq_size_log2; | |
950 | spin_lock(&ucontext->mmap_lock); | |
951 | uresp.key = ucontext->key; | |
952 | ucontext->key += PAGE_SIZE; | |
953 | uresp.db_key = ucontext->key; | |
954 | ucontext->key += PAGE_SIZE; | |
955 | spin_unlock(&ucontext->mmap_lock); | |
956 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
957 | kfree(mm1); | |
958 | kfree(mm2); | |
959 | iwch_destroy_qp(&qhp->ibqp); | |
960 | return ERR_PTR(-EFAULT); | |
961 | } | |
962 | mm1->key = uresp.key; | |
963 | mm1->addr = virt_to_phys(qhp->wq.queue); | |
964 | mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr)); | |
965 | insert_mmap(ucontext, mm1); | |
966 | mm2->key = uresp.db_key; | |
967 | mm2->addr = qhp->wq.udb & PAGE_MASK; | |
968 | mm2->len = PAGE_SIZE; | |
969 | insert_mmap(ucontext, mm2); | |
970 | } | |
971 | qhp->ibqp.qp_num = qhp->wq.qpid; | |
972 | init_timer(&(qhp->timer)); | |
b7b37ee0 JP |
973 | pr_debug("%s sq_num_entries %d, rq_num_entries %d qpid 0x%0x qhp %p dma_addr 0x%llx size %d rq_addr 0x%x\n", |
974 | __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries, | |
975 | qhp->wq.qpid, qhp, (unsigned long long)qhp->wq.dma_addr, | |
976 | 1 << qhp->wq.size_log2, qhp->wq.rq_addr); | |
b038ced7 SW |
977 | return &qhp->ibqp; |
978 | } | |
979 | ||
980 | static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
981 | int attr_mask, struct ib_udata *udata) | |
982 | { | |
983 | struct iwch_dev *rhp; | |
984 | struct iwch_qp *qhp; | |
985 | enum iwch_qp_attr_mask mask = 0; | |
986 | struct iwch_qp_attributes attrs; | |
987 | ||
b7b37ee0 | 988 | pr_debug("%s ib_qp %p\n", __func__, ibqp); |
b038ced7 SW |
989 | |
990 | /* iwarp does not support the RTR state */ | |
991 | if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR)) | |
992 | attr_mask &= ~IB_QP_STATE; | |
993 | ||
994 | /* Make sure we still have something left to do */ | |
995 | if (!attr_mask) | |
996 | return 0; | |
997 | ||
998 | memset(&attrs, 0, sizeof attrs); | |
999 | qhp = to_iwch_qp(ibqp); | |
1000 | rhp = qhp->rhp; | |
1001 | ||
1002 | attrs.next_state = iwch_convert_state(attr->qp_state); | |
1003 | attrs.enable_rdma_read = (attr->qp_access_flags & | |
1004 | IB_ACCESS_REMOTE_READ) ? 1 : 0; | |
1005 | attrs.enable_rdma_write = (attr->qp_access_flags & | |
1006 | IB_ACCESS_REMOTE_WRITE) ? 1 : 0; | |
1007 | attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0; | |
1008 | ||
1009 | ||
1010 | mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0; | |
1011 | mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ? | |
1012 | (IWCH_QP_ATTR_ENABLE_RDMA_READ | | |
1013 | IWCH_QP_ATTR_ENABLE_RDMA_WRITE | | |
1014 | IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0; | |
1015 | ||
1016 | return iwch_modify_qp(rhp, qhp, mask, &attrs, 0); | |
1017 | } | |
1018 | ||
1019 | void iwch_qp_add_ref(struct ib_qp *qp) | |
1020 | { | |
b7b37ee0 | 1021 | pr_debug("%s ib_qp %p\n", __func__, qp); |
b038ced7 SW |
1022 | atomic_inc(&(to_iwch_qp(qp)->refcnt)); |
1023 | } | |
1024 | ||
1025 | void iwch_qp_rem_ref(struct ib_qp *qp) | |
1026 | { | |
b7b37ee0 | 1027 | pr_debug("%s ib_qp %p\n", __func__, qp); |
b038ced7 SW |
1028 | if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt))) |
1029 | wake_up(&(to_iwch_qp(qp)->wait)); | |
1030 | } | |
1031 | ||
2b540355 | 1032 | static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn) |
b038ced7 | 1033 | { |
b7b37ee0 | 1034 | pr_debug("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn); |
b038ced7 SW |
1035 | return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn); |
1036 | } | |
1037 | ||
1038 | ||
1039 | static int iwch_query_pkey(struct ib_device *ibdev, | |
1040 | u8 port, u16 index, u16 * pkey) | |
1041 | { | |
b7b37ee0 | 1042 | pr_debug("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
1043 | *pkey = 0; |
1044 | return 0; | |
1045 | } | |
1046 | ||
1047 | static int iwch_query_gid(struct ib_device *ibdev, u8 port, | |
1048 | int index, union ib_gid *gid) | |
1049 | { | |
1050 | struct iwch_dev *dev; | |
1051 | ||
b7b37ee0 JP |
1052 | pr_debug("%s ibdev %p, port %d, index %d, gid %p\n", |
1053 | __func__, ibdev, port, index, gid); | |
b038ced7 SW |
1054 | dev = to_iwch_dev(ibdev); |
1055 | BUG_ON(port == 0 || port > 2); | |
1056 | memset(&(gid->raw[0]), 0, sizeof(gid->raw)); | |
1057 | memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6); | |
1058 | return 0; | |
1059 | } | |
1060 | ||
97d1cc80 SW |
1061 | static u64 fw_vers_string_to_u64(struct iwch_dev *iwch_dev) |
1062 | { | |
1063 | struct ethtool_drvinfo info; | |
1064 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; | |
1065 | char *cp, *next; | |
1066 | unsigned fw_maj, fw_min, fw_mic; | |
1067 | ||
97d1cc80 | 1068 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
97d1cc80 SW |
1069 | |
1070 | next = info.fw_version + 1; | |
1071 | cp = strsep(&next, "."); | |
1072 | sscanf(cp, "%i", &fw_maj); | |
1073 | cp = strsep(&next, "."); | |
1074 | sscanf(cp, "%i", &fw_min); | |
1075 | cp = strsep(&next, "."); | |
1076 | sscanf(cp, "%i", &fw_mic); | |
1077 | ||
1078 | return (((u64)fw_maj & 0xffff) << 32) | ((fw_min & 0xffff) << 16) | | |
1079 | (fw_mic & 0xffff); | |
1080 | } | |
1081 | ||
2528e33e MB |
1082 | static int iwch_query_device(struct ib_device *ibdev, struct ib_device_attr *props, |
1083 | struct ib_udata *uhw) | |
b038ced7 SW |
1084 | { |
1085 | ||
1086 | struct iwch_dev *dev; | |
2528e33e | 1087 | |
b7b37ee0 | 1088 | pr_debug("%s ibdev %p\n", __func__, ibdev); |
b038ced7 | 1089 | |
2528e33e MB |
1090 | if (uhw->inlen || uhw->outlen) |
1091 | return -EINVAL; | |
1092 | ||
b038ced7 SW |
1093 | dev = to_iwch_dev(ibdev); |
1094 | memset(props, 0, sizeof *props); | |
1095 | memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); | |
97d1cc80 SW |
1096 | props->hw_ver = dev->rdev.t3cdev_p->type; |
1097 | props->fw_ver = fw_vers_string_to_u64(dev); | |
b038ced7 | 1098 | props->device_cap_flags = dev->device_cap_flags; |
52c8084b | 1099 | props->page_size_cap = dev->attr.mem_pgsizes_bitmask; |
b038ced7 SW |
1100 | props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor; |
1101 | props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device; | |
ccaf10d0 | 1102 | props->max_mr_size = dev->attr.max_mr_size; |
b038ced7 SW |
1103 | props->max_qp = dev->attr.max_qps; |
1104 | props->max_qp_wr = dev->attr.max_wrs; | |
1105 | props->max_sge = dev->attr.max_sge_per_wr; | |
1106 | props->max_sge_rd = 1; | |
1107 | props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp; | |
9a766649 | 1108 | props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp; |
b038ced7 SW |
1109 | props->max_cq = dev->attr.max_cqs; |
1110 | props->max_cqe = dev->attr.max_cqes_per_cq; | |
1111 | props->max_mr = dev->attr.max_mem_regs; | |
1112 | props->max_pd = dev->attr.max_pds; | |
1113 | props->local_ca_ack_delay = 0; | |
e7e55829 | 1114 | props->max_fast_reg_page_list_len = T3_MAX_FASTREG_DEPTH; |
b038ced7 SW |
1115 | |
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | static int iwch_query_port(struct ib_device *ibdev, | |
1120 | u8 port, struct ib_port_attr *props) | |
1121 | { | |
7ab1a2b3 SW |
1122 | struct iwch_dev *dev; |
1123 | struct net_device *netdev; | |
1124 | struct in_device *inetdev; | |
1125 | ||
b7b37ee0 | 1126 | pr_debug("%s ibdev %p\n", __func__, ibdev); |
c752c782 | 1127 | |
7ab1a2b3 SW |
1128 | dev = to_iwch_dev(ibdev); |
1129 | netdev = dev->rdev.port_info.lldevs[port-1]; | |
1130 | ||
c4550c63 | 1131 | /* props being zeroed by the caller, avoid zeroing it here */ |
b038ced7 | 1132 | props->max_mtu = IB_MTU_4096; |
d3f4aadd | 1133 | props->active_mtu = ib_mtu_int_to_enum(netdev->mtu); |
7ab1a2b3 SW |
1134 | |
1135 | if (!netif_carrier_ok(netdev)) | |
1136 | props->state = IB_PORT_DOWN; | |
1137 | else { | |
1138 | inetdev = in_dev_get(netdev); | |
e5da4ed8 SW |
1139 | if (inetdev) { |
1140 | if (inetdev->ifa_list) | |
1141 | props->state = IB_PORT_ACTIVE; | |
1142 | else | |
1143 | props->state = IB_PORT_INIT; | |
1144 | in_dev_put(inetdev); | |
1145 | } else | |
7ab1a2b3 | 1146 | props->state = IB_PORT_INIT; |
7ab1a2b3 SW |
1147 | } |
1148 | ||
b038ced7 SW |
1149 | props->port_cap_flags = |
1150 | IB_PORT_CM_SUP | | |
1151 | IB_PORT_SNMP_TUNNEL_SUP | | |
1152 | IB_PORT_REINIT_SUP | | |
1153 | IB_PORT_DEVICE_MGMT_SUP | | |
1154 | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; | |
1155 | props->gid_tbl_len = 1; | |
1156 | props->pkey_tbl_len = 1; | |
b038ced7 | 1157 | props->active_width = 2; |
2e96691c | 1158 | props->active_speed = IB_SPEED_DDR; |
b038ced7 SW |
1159 | props->max_msg_sz = -1; |
1160 | ||
1161 | return 0; | |
1162 | } | |
1163 | ||
f4e91eb4 TJ |
1164 | static ssize_t show_rev(struct device *dev, struct device_attribute *attr, |
1165 | char *buf) | |
b038ced7 | 1166 | { |
f4e91eb4 TJ |
1167 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1168 | ibdev.dev); | |
b7b37ee0 | 1169 | pr_debug("%s dev 0x%p\n", __func__, dev); |
f4e91eb4 | 1170 | return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type); |
b038ced7 SW |
1171 | } |
1172 | ||
f4e91eb4 TJ |
1173 | static ssize_t show_hca(struct device *dev, struct device_attribute *attr, |
1174 | char *buf) | |
b038ced7 | 1175 | { |
f4e91eb4 TJ |
1176 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1177 | ibdev.dev); | |
b038ced7 | 1178 | struct ethtool_drvinfo info; |
f4e91eb4 | 1179 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
b038ced7 | 1180 | |
b7b37ee0 | 1181 | pr_debug("%s dev 0x%p\n", __func__, dev); |
b038ced7 SW |
1182 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
1183 | return sprintf(buf, "%s\n", info.driver); | |
1184 | } | |
1185 | ||
f4e91eb4 TJ |
1186 | static ssize_t show_board(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); | |
b7b37ee0 | 1191 | pr_debug("%s dev 0x%p\n", __func__, dev); |
f4e91eb4 TJ |
1192 | return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor, |
1193 | iwch_dev->rdev.rnic_info.pdev->device); | |
b038ced7 SW |
1194 | } |
1195 | ||
b40f4757 CL |
1196 | enum counters { |
1197 | IPINRECEIVES, | |
1198 | IPINHDRERRORS, | |
1199 | IPINADDRERRORS, | |
1200 | IPINUNKNOWNPROTOS, | |
1201 | IPINDISCARDS, | |
1202 | IPINDELIVERS, | |
1203 | IPOUTREQUESTS, | |
1204 | IPOUTDISCARDS, | |
1205 | IPOUTNOROUTES, | |
1206 | IPREASMTIMEOUT, | |
1207 | IPREASMREQDS, | |
1208 | IPREASMOKS, | |
1209 | IPREASMFAILS, | |
1210 | TCPACTIVEOPENS, | |
1211 | TCPPASSIVEOPENS, | |
1212 | TCPATTEMPTFAILS, | |
1213 | TCPESTABRESETS, | |
1214 | TCPCURRESTAB, | |
1215 | TCPINSEGS, | |
1216 | TCPOUTSEGS, | |
1217 | TCPRETRANSSEGS, | |
1218 | TCPINERRS, | |
1219 | TCPOUTRSTS, | |
1220 | TCPRTOMIN, | |
1221 | TCPRTOMAX, | |
1222 | NR_COUNTERS | |
1223 | }; | |
1224 | ||
1225 | static const char * const names[] = { | |
1226 | [IPINRECEIVES] = "ipInReceives", | |
1227 | [IPINHDRERRORS] = "ipInHdrErrors", | |
1228 | [IPINADDRERRORS] = "ipInAddrErrors", | |
1229 | [IPINUNKNOWNPROTOS] = "ipInUnknownProtos", | |
1230 | [IPINDISCARDS] = "ipInDiscards", | |
1231 | [IPINDELIVERS] = "ipInDelivers", | |
1232 | [IPOUTREQUESTS] = "ipOutRequests", | |
1233 | [IPOUTDISCARDS] = "ipOutDiscards", | |
1234 | [IPOUTNOROUTES] = "ipOutNoRoutes", | |
1235 | [IPREASMTIMEOUT] = "ipReasmTimeout", | |
1236 | [IPREASMREQDS] = "ipReasmReqds", | |
1237 | [IPREASMOKS] = "ipReasmOKs", | |
1238 | [IPREASMFAILS] = "ipReasmFails", | |
1239 | [TCPACTIVEOPENS] = "tcpActiveOpens", | |
1240 | [TCPPASSIVEOPENS] = "tcpPassiveOpens", | |
1241 | [TCPATTEMPTFAILS] = "tcpAttemptFails", | |
1242 | [TCPESTABRESETS] = "tcpEstabResets", | |
1243 | [TCPCURRESTAB] = "tcpCurrEstab", | |
1244 | [TCPINSEGS] = "tcpInSegs", | |
1245 | [TCPOUTSEGS] = "tcpOutSegs", | |
1246 | [TCPRETRANSSEGS] = "tcpRetransSegs", | |
1247 | [TCPINERRS] = "tcpInErrs", | |
1248 | [TCPOUTRSTS] = "tcpOutRsts", | |
1249 | [TCPRTOMIN] = "tcpRtoMin", | |
1250 | [TCPRTOMAX] = "tcpRtoMax", | |
1251 | }; | |
1252 | ||
1253 | static struct rdma_hw_stats *iwch_alloc_stats(struct ib_device *ibdev, | |
1254 | u8 port_num) | |
1255 | { | |
1256 | BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS); | |
1257 | ||
1258 | /* Our driver only supports device level stats */ | |
1259 | if (port_num != 0) | |
1260 | return NULL; | |
1261 | ||
1262 | return rdma_alloc_hw_stats_struct(names, NR_COUNTERS, | |
1263 | RDMA_HW_STATS_DEFAULT_LIFESPAN); | |
1264 | } | |
1265 | ||
1266 | static int iwch_get_mib(struct ib_device *ibdev, struct rdma_hw_stats *stats, | |
1267 | u8 port, int index) | |
14cc180f SW |
1268 | { |
1269 | struct iwch_dev *dev; | |
1270 | struct tp_mib_stats m; | |
1271 | int ret; | |
1272 | ||
b40f4757 CL |
1273 | if (port != 0 || !stats) |
1274 | return -ENOSYS; | |
1275 | ||
b7b37ee0 | 1276 | pr_debug("%s ibdev %p\n", __func__, ibdev); |
14cc180f SW |
1277 | dev = to_iwch_dev(ibdev); |
1278 | ret = dev->rdev.t3cdev_p->ctl(dev->rdev.t3cdev_p, RDMA_GET_MIB, &m); | |
1279 | if (ret) | |
1280 | return -ENOSYS; | |
1281 | ||
b40f4757 CL |
1282 | stats->value[IPINRECEIVES] = ((u64)m.ipInReceive_hi << 32) + m.ipInReceive_lo; |
1283 | stats->value[IPINHDRERRORS] = ((u64)m.ipInHdrErrors_hi << 32) + m.ipInHdrErrors_lo; | |
1284 | stats->value[IPINADDRERRORS] = ((u64)m.ipInAddrErrors_hi << 32) + m.ipInAddrErrors_lo; | |
1285 | stats->value[IPINUNKNOWNPROTOS] = ((u64)m.ipInUnknownProtos_hi << 32) + m.ipInUnknownProtos_lo; | |
1286 | stats->value[IPINDISCARDS] = ((u64)m.ipInDiscards_hi << 32) + m.ipInDiscards_lo; | |
1287 | stats->value[IPINDELIVERS] = ((u64)m.ipInDelivers_hi << 32) + m.ipInDelivers_lo; | |
1288 | stats->value[IPOUTREQUESTS] = ((u64)m.ipOutRequests_hi << 32) + m.ipOutRequests_lo; | |
1289 | stats->value[IPOUTDISCARDS] = ((u64)m.ipOutDiscards_hi << 32) + m.ipOutDiscards_lo; | |
1290 | stats->value[IPOUTNOROUTES] = ((u64)m.ipOutNoRoutes_hi << 32) + m.ipOutNoRoutes_lo; | |
1291 | stats->value[IPREASMTIMEOUT] = m.ipReasmTimeout; | |
1292 | stats->value[IPREASMREQDS] = m.ipReasmReqds; | |
1293 | stats->value[IPREASMOKS] = m.ipReasmOKs; | |
1294 | stats->value[IPREASMFAILS] = m.ipReasmFails; | |
1295 | stats->value[TCPACTIVEOPENS] = m.tcpActiveOpens; | |
1296 | stats->value[TCPPASSIVEOPENS] = m.tcpPassiveOpens; | |
1297 | stats->value[TCPATTEMPTFAILS] = m.tcpAttemptFails; | |
1298 | stats->value[TCPESTABRESETS] = m.tcpEstabResets; | |
1299 | stats->value[TCPCURRESTAB] = m.tcpOutRsts; | |
1300 | stats->value[TCPINSEGS] = m.tcpCurrEstab; | |
1301 | stats->value[TCPOUTSEGS] = ((u64)m.tcpInSegs_hi << 32) + m.tcpInSegs_lo; | |
1302 | stats->value[TCPRETRANSSEGS] = ((u64)m.tcpOutSegs_hi << 32) + m.tcpOutSegs_lo; | |
1303 | stats->value[TCPINERRS] = ((u64)m.tcpRetransSeg_hi << 32) + m.tcpRetransSeg_lo, | |
1304 | stats->value[TCPOUTRSTS] = ((u64)m.tcpInErrs_hi << 32) + m.tcpInErrs_lo; | |
1305 | stats->value[TCPRTOMIN] = m.tcpRtoMin; | |
1306 | stats->value[TCPRTOMAX] = m.tcpRtoMax; | |
1307 | ||
1308 | return stats->num_counters; | |
14cc180f SW |
1309 | } |
1310 | ||
f4e91eb4 | 1311 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
f4e91eb4 TJ |
1312 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); |
1313 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
b038ced7 | 1314 | |
f4e91eb4 TJ |
1315 | static struct device_attribute *iwch_class_attributes[] = { |
1316 | &dev_attr_hw_rev, | |
f4e91eb4 | 1317 | &dev_attr_hca_type, |
14cc180f | 1318 | &dev_attr_board_id, |
b038ced7 SW |
1319 | }; |
1320 | ||
7738613e IW |
1321 | static int iwch_port_immutable(struct ib_device *ibdev, u8 port_num, |
1322 | struct ib_port_immutable *immutable) | |
1323 | { | |
1324 | struct ib_port_attr attr; | |
1325 | int err; | |
1326 | ||
c4550c63 OG |
1327 | immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; |
1328 | ||
1329 | err = ib_query_port(ibdev, port_num, &attr); | |
7738613e IW |
1330 | if (err) |
1331 | return err; | |
1332 | ||
1333 | immutable->pkey_tbl_len = attr.pkey_tbl_len; | |
1334 | immutable->gid_tbl_len = attr.gid_tbl_len; | |
1335 | ||
1336 | return 0; | |
1337 | } | |
1338 | ||
e1803694 IW |
1339 | static void get_dev_fw_ver_str(struct ib_device *ibdev, char *str, |
1340 | size_t str_len) | |
1341 | { | |
1342 | struct iwch_dev *iwch_dev = to_iwch_dev(ibdev); | |
1343 | struct ethtool_drvinfo info; | |
1344 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; | |
1345 | ||
b7b37ee0 | 1346 | pr_debug("%s dev 0x%p\n", __func__, iwch_dev); |
e1803694 IW |
1347 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
1348 | snprintf(str, str_len, "%s", info.fw_version); | |
1349 | } | |
1350 | ||
b038ced7 SW |
1351 | int iwch_register_device(struct iwch_dev *dev) |
1352 | { | |
1353 | int ret; | |
1354 | int i; | |
1355 | ||
b7b37ee0 | 1356 | pr_debug("%s iwch_dev %p\n", __func__, dev); |
b038ced7 SW |
1357 | strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX); |
1358 | memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); | |
1359 | memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); | |
1360 | dev->ibdev.owner = THIS_MODULE; | |
be43324d SW |
1361 | dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | |
1362 | IB_DEVICE_MEM_WINDOW | | |
1363 | IB_DEVICE_MEM_MGT_EXTENSIONS; | |
96f15c03 SW |
1364 | |
1365 | /* cxgb3 supports STag 0. */ | |
1366 | dev->ibdev.local_dma_lkey = 0; | |
b038ced7 SW |
1367 | |
1368 | dev->ibdev.uverbs_cmd_mask = | |
1369 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1370 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1371 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1372 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1373 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1374 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1375 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1376 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1377 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
1378 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
1379 | (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | | |
1380 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
1381 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
1382 | (1ull << IB_USER_VERBS_CMD_POLL_CQ) | | |
1383 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
1384 | (1ull << IB_USER_VERBS_CMD_POST_SEND) | | |
1385 | (1ull << IB_USER_VERBS_CMD_POST_RECV); | |
1386 | dev->ibdev.node_type = RDMA_NODE_RNIC; | |
bd99fdea | 1387 | BUILD_BUG_ON(sizeof(IWCH_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX); |
b038ced7 SW |
1388 | memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC)); |
1389 | dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports; | |
f4fd0b22 | 1390 | dev->ibdev.num_comp_vectors = 1; |
91f734b4 | 1391 | dev->ibdev.dev.parent = &dev->rdev.rnic_info.pdev->dev; |
b038ced7 SW |
1392 | dev->ibdev.query_device = iwch_query_device; |
1393 | dev->ibdev.query_port = iwch_query_port; | |
b038ced7 SW |
1394 | dev->ibdev.query_pkey = iwch_query_pkey; |
1395 | dev->ibdev.query_gid = iwch_query_gid; | |
1396 | dev->ibdev.alloc_ucontext = iwch_alloc_ucontext; | |
1397 | dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext; | |
1398 | dev->ibdev.mmap = iwch_mmap; | |
1399 | dev->ibdev.alloc_pd = iwch_allocate_pd; | |
1400 | dev->ibdev.dealloc_pd = iwch_deallocate_pd; | |
1401 | dev->ibdev.create_ah = iwch_ah_create; | |
1402 | dev->ibdev.destroy_ah = iwch_ah_destroy; | |
1403 | dev->ibdev.create_qp = iwch_create_qp; | |
1404 | dev->ibdev.modify_qp = iwch_ib_modify_qp; | |
1405 | dev->ibdev.destroy_qp = iwch_destroy_qp; | |
1406 | dev->ibdev.create_cq = iwch_create_cq; | |
1407 | dev->ibdev.destroy_cq = iwch_destroy_cq; | |
1408 | dev->ibdev.resize_cq = iwch_resize_cq; | |
1409 | dev->ibdev.poll_cq = iwch_poll_cq; | |
1410 | dev->ibdev.get_dma_mr = iwch_get_dma_mr; | |
b038ced7 SW |
1411 | dev->ibdev.reg_user_mr = iwch_reg_user_mr; |
1412 | dev->ibdev.dereg_mr = iwch_dereg_mr; | |
1413 | dev->ibdev.alloc_mw = iwch_alloc_mw; | |
b038ced7 | 1414 | dev->ibdev.dealloc_mw = iwch_dealloc_mw; |
f683d3bd | 1415 | dev->ibdev.alloc_mr = iwch_alloc_mr; |
14fb4171 | 1416 | dev->ibdev.map_mr_sg = iwch_map_mr_sg; |
b038ced7 SW |
1417 | dev->ibdev.attach_mcast = iwch_multicast_attach; |
1418 | dev->ibdev.detach_mcast = iwch_multicast_detach; | |
1419 | dev->ibdev.process_mad = iwch_process_mad; | |
b038ced7 SW |
1420 | dev->ibdev.req_notify_cq = iwch_arm_cq; |
1421 | dev->ibdev.post_send = iwch_post_send; | |
1422 | dev->ibdev.post_recv = iwch_post_receive; | |
b40f4757 CL |
1423 | dev->ibdev.alloc_hw_stats = iwch_alloc_stats; |
1424 | dev->ibdev.get_hw_stats = iwch_get_mib; | |
b955150e | 1425 | dev->ibdev.uverbs_abi_ver = IWCH_UVERBS_ABI_VERSION; |
7738613e | 1426 | dev->ibdev.get_port_immutable = iwch_port_immutable; |
e1803694 | 1427 | dev->ibdev.get_dev_fw_str = get_dev_fw_ver_str; |
b038ced7 | 1428 | |
6abb6ea8 WC |
1429 | dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); |
1430 | if (!dev->ibdev.iwcm) | |
1431 | return -ENOMEM; | |
1432 | ||
b038ced7 SW |
1433 | dev->ibdev.iwcm->connect = iwch_connect; |
1434 | dev->ibdev.iwcm->accept = iwch_accept_cr; | |
1435 | dev->ibdev.iwcm->reject = iwch_reject_cr; | |
1436 | dev->ibdev.iwcm->create_listen = iwch_create_listen; | |
1437 | dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen; | |
1438 | dev->ibdev.iwcm->add_ref = iwch_qp_add_ref; | |
1439 | dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref; | |
1440 | dev->ibdev.iwcm->get_qp = iwch_get_qp; | |
ad202348 SW |
1441 | memcpy(dev->ibdev.iwcm->ifname, dev->rdev.t3cdev_p->lldev->name, |
1442 | sizeof(dev->ibdev.iwcm->ifname)); | |
b038ced7 | 1443 | |
9a6edb60 | 1444 | ret = ib_register_device(&dev->ibdev, NULL); |
b038ced7 SW |
1445 | if (ret) |
1446 | goto bail1; | |
1447 | ||
1448 | for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) { | |
f4e91eb4 TJ |
1449 | ret = device_create_file(&dev->ibdev.dev, |
1450 | iwch_class_attributes[i]); | |
b038ced7 SW |
1451 | if (ret) { |
1452 | goto bail2; | |
1453 | } | |
1454 | } | |
1455 | return 0; | |
1456 | bail2: | |
1457 | ib_unregister_device(&dev->ibdev); | |
1458 | bail1: | |
3793d2fc | 1459 | kfree(dev->ibdev.iwcm); |
b038ced7 SW |
1460 | return ret; |
1461 | } | |
1462 | ||
1463 | void iwch_unregister_device(struct iwch_dev *dev) | |
1464 | { | |
1465 | int i; | |
1466 | ||
b7b37ee0 | 1467 | pr_debug("%s iwch_dev %p\n", __func__, dev); |
b038ced7 | 1468 | for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) |
f4e91eb4 TJ |
1469 | device_remove_file(&dev->ibdev.dev, |
1470 | iwch_class_attributes[i]); | |
b038ced7 | 1471 | ib_unregister_device(&dev->ibdev); |
3793d2fc | 1472 | kfree(dev->ibdev.iwcm); |
b038ced7 SW |
1473 | return; |
1474 | } |