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b038ced7 SW |
1 | /* |
2 | * Copyright (c) 2006 Chelsio, Inc. All rights reserved. | |
b038ced7 SW |
3 | * |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | */ | |
32 | #include <linux/module.h> | |
33 | #include <linux/moduleparam.h> | |
34 | #include <linux/device.h> | |
35 | #include <linux/netdevice.h> | |
36 | #include <linux/etherdevice.h> | |
37 | #include <linux/delay.h> | |
38 | #include <linux/errno.h> | |
39 | #include <linux/list.h> | |
40 | #include <linux/spinlock.h> | |
41 | #include <linux/ethtool.h> | |
7f049f2f | 42 | #include <linux/rtnetlink.h> |
b038ced7 SW |
43 | |
44 | #include <asm/io.h> | |
45 | #include <asm/irq.h> | |
46 | #include <asm/byteorder.h> | |
47 | ||
48 | #include <rdma/iw_cm.h> | |
49 | #include <rdma/ib_verbs.h> | |
50 | #include <rdma/ib_smi.h> | |
f7c6a7b5 | 51 | #include <rdma/ib_umem.h> |
b038ced7 SW |
52 | #include <rdma/ib_user_verbs.h> |
53 | ||
54 | #include "cxio_hal.h" | |
55 | #include "iwch.h" | |
56 | #include "iwch_provider.h" | |
57 | #include "iwch_cm.h" | |
58 | #include "iwch_user.h" | |
59 | ||
60 | static int iwch_modify_port(struct ib_device *ibdev, | |
61 | u8 port, int port_modify_mask, | |
62 | struct ib_port_modify *props) | |
63 | { | |
64 | return -ENOSYS; | |
65 | } | |
66 | ||
67 | static struct ib_ah *iwch_ah_create(struct ib_pd *pd, | |
68 | struct ib_ah_attr *ah_attr) | |
69 | { | |
70 | return ERR_PTR(-ENOSYS); | |
71 | } | |
72 | ||
73 | static int iwch_ah_destroy(struct ib_ah *ah) | |
74 | { | |
75 | return -ENOSYS; | |
76 | } | |
77 | ||
78 | static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
79 | { | |
80 | return -ENOSYS; | |
81 | } | |
82 | ||
83 | static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
84 | { | |
85 | return -ENOSYS; | |
86 | } | |
87 | ||
88 | static int iwch_process_mad(struct ib_device *ibdev, | |
89 | int mad_flags, | |
90 | u8 port_num, | |
91 | struct ib_wc *in_wc, | |
92 | struct ib_grh *in_grh, | |
93 | struct ib_mad *in_mad, struct ib_mad *out_mad) | |
94 | { | |
95 | return -ENOSYS; | |
96 | } | |
97 | ||
98 | static int iwch_dealloc_ucontext(struct ib_ucontext *context) | |
99 | { | |
100 | struct iwch_dev *rhp = to_iwch_dev(context->device); | |
101 | struct iwch_ucontext *ucontext = to_iwch_ucontext(context); | |
102 | struct iwch_mm_entry *mm, *tmp; | |
103 | ||
33718363 | 104 | PDBG("%s context %p\n", __func__, context); |
b038ced7 SW |
105 | list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry) |
106 | kfree(mm); | |
107 | cxio_release_ucontext(&rhp->rdev, &ucontext->uctx); | |
108 | kfree(ucontext); | |
109 | return 0; | |
110 | } | |
111 | ||
112 | static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev, | |
113 | struct ib_udata *udata) | |
114 | { | |
115 | struct iwch_ucontext *context; | |
116 | struct iwch_dev *rhp = to_iwch_dev(ibdev); | |
117 | ||
33718363 | 118 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
119 | context = kzalloc(sizeof(*context), GFP_KERNEL); |
120 | if (!context) | |
121 | return ERR_PTR(-ENOMEM); | |
122 | cxio_init_ucontext(&rhp->rdev, &context->uctx); | |
123 | INIT_LIST_HEAD(&context->mmaps); | |
124 | spin_lock_init(&context->mmap_lock); | |
125 | return &context->ibucontext; | |
126 | } | |
127 | ||
128 | static int iwch_destroy_cq(struct ib_cq *ib_cq) | |
129 | { | |
130 | struct iwch_cq *chp; | |
131 | ||
33718363 | 132 | PDBG("%s ib_cq %p\n", __func__, ib_cq); |
b038ced7 SW |
133 | chp = to_iwch_cq(ib_cq); |
134 | ||
135 | remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid); | |
136 | atomic_dec(&chp->refcnt); | |
137 | wait_event(chp->wait, !atomic_read(&chp->refcnt)); | |
138 | ||
139 | cxio_destroy_cq(&chp->rhp->rdev, &chp->cq); | |
140 | kfree(chp); | |
141 | return 0; | |
142 | } | |
143 | ||
f4fd0b22 | 144 | static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int vector, |
b038ced7 SW |
145 | struct ib_ucontext *ib_context, |
146 | struct ib_udata *udata) | |
147 | { | |
148 | struct iwch_dev *rhp; | |
149 | struct iwch_cq *chp; | |
150 | struct iwch_create_cq_resp uresp; | |
151 | struct iwch_create_cq_req ureq; | |
152 | struct iwch_ucontext *ucontext = NULL; | |
153 | ||
33718363 | 154 | PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries); |
b038ced7 SW |
155 | rhp = to_iwch_dev(ibdev); |
156 | chp = kzalloc(sizeof(*chp), GFP_KERNEL); | |
157 | if (!chp) | |
158 | return ERR_PTR(-ENOMEM); | |
159 | ||
160 | if (ib_context) { | |
161 | ucontext = to_iwch_ucontext(ib_context); | |
162 | if (!t3a_device(rhp)) { | |
163 | if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) { | |
164 | kfree(chp); | |
165 | return ERR_PTR(-EFAULT); | |
166 | } | |
167 | chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr; | |
168 | } | |
169 | } | |
170 | ||
171 | if (t3a_device(rhp)) { | |
172 | ||
173 | /* | |
174 | * T3A: Add some fluff to handle extra CQEs inserted | |
175 | * for various errors. | |
176 | * Additional CQE possibilities: | |
177 | * TERMINATE, | |
178 | * incoming RDMA WRITE Failures | |
179 | * incoming RDMA READ REQUEST FAILUREs | |
180 | * NOTE: We cannot ensure the CQ won't overflow. | |
181 | */ | |
182 | entries += 16; | |
183 | } | |
184 | entries = roundup_pow_of_two(entries); | |
185 | chp->cq.size_log2 = ilog2(entries); | |
186 | ||
187 | if (cxio_create_cq(&rhp->rdev, &chp->cq)) { | |
188 | kfree(chp); | |
189 | return ERR_PTR(-ENOMEM); | |
190 | } | |
191 | chp->rhp = rhp; | |
4fa45725 | 192 | chp->ibcq.cqe = 1 << chp->cq.size_log2; |
b038ced7 SW |
193 | spin_lock_init(&chp->lock); |
194 | atomic_set(&chp->refcnt, 1); | |
195 | init_waitqueue_head(&chp->wait); | |
196 | insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid); | |
197 | ||
198 | if (ucontext) { | |
199 | struct iwch_mm_entry *mm; | |
200 | ||
201 | mm = kmalloc(sizeof *mm, GFP_KERNEL); | |
202 | if (!mm) { | |
203 | iwch_destroy_cq(&chp->ibcq); | |
204 | return ERR_PTR(-ENOMEM); | |
205 | } | |
206 | uresp.cqid = chp->cq.cqid; | |
207 | uresp.size_log2 = chp->cq.size_log2; | |
208 | spin_lock(&ucontext->mmap_lock); | |
209 | uresp.key = ucontext->key; | |
210 | ucontext->key += PAGE_SIZE; | |
211 | spin_unlock(&ucontext->mmap_lock); | |
212 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
213 | kfree(mm); | |
214 | iwch_destroy_cq(&chp->ibcq); | |
215 | return ERR_PTR(-EFAULT); | |
216 | } | |
217 | mm->key = uresp.key; | |
218 | mm->addr = virt_to_phys(chp->cq.queue); | |
219 | mm->len = PAGE_ALIGN((1UL << uresp.size_log2) * | |
220 | sizeof (struct t3_cqe)); | |
221 | insert_mmap(ucontext, mm); | |
222 | } | |
223 | PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n", | |
224 | chp->cq.cqid, chp, (1 << chp->cq.size_log2), | |
225 | (unsigned long long) chp->cq.dma_addr); | |
226 | return &chp->ibcq; | |
227 | } | |
228 | ||
229 | static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata) | |
230 | { | |
231 | #ifdef notyet | |
232 | struct iwch_cq *chp = to_iwch_cq(cq); | |
233 | struct t3_cq oldcq, newcq; | |
234 | int ret; | |
235 | ||
33718363 | 236 | PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe); |
b038ced7 SW |
237 | |
238 | /* We don't downsize... */ | |
239 | if (cqe <= cq->cqe) | |
240 | return 0; | |
241 | ||
242 | /* create new t3_cq with new size */ | |
243 | cqe = roundup_pow_of_two(cqe+1); | |
244 | newcq.size_log2 = ilog2(cqe); | |
245 | ||
246 | /* Dont allow resize to less than the current wce count */ | |
247 | if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) { | |
248 | return -ENOMEM; | |
249 | } | |
250 | ||
251 | /* Quiesce all QPs using this CQ */ | |
252 | ret = iwch_quiesce_qps(chp); | |
253 | if (ret) { | |
254 | return ret; | |
255 | } | |
256 | ||
257 | ret = cxio_create_cq(&chp->rhp->rdev, &newcq); | |
258 | if (ret) { | |
259 | return ret; | |
260 | } | |
261 | ||
262 | /* copy CQEs */ | |
263 | memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) * | |
264 | sizeof(struct t3_cqe)); | |
265 | ||
266 | /* old iwch_qp gets new t3_cq but keeps old cqid */ | |
267 | oldcq = chp->cq; | |
268 | chp->cq = newcq; | |
269 | chp->cq.cqid = oldcq.cqid; | |
270 | ||
271 | /* resize new t3_cq to update the HW context */ | |
272 | ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq); | |
273 | if (ret) { | |
274 | chp->cq = oldcq; | |
275 | return ret; | |
276 | } | |
277 | chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1; | |
278 | ||
279 | /* destroy old t3_cq */ | |
280 | oldcq.cqid = newcq.cqid; | |
281 | ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq); | |
282 | if (ret) { | |
283 | printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n", | |
33718363 | 284 | __func__, ret); |
b038ced7 SW |
285 | } |
286 | ||
287 | /* add user hooks here */ | |
288 | ||
289 | /* resume qps */ | |
290 | ret = iwch_resume_qps(chp); | |
291 | return ret; | |
292 | #else | |
293 | return -ENOSYS; | |
294 | #endif | |
295 | } | |
296 | ||
ed23a727 | 297 | static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) |
b038ced7 SW |
298 | { |
299 | struct iwch_dev *rhp; | |
300 | struct iwch_cq *chp; | |
301 | enum t3_cq_opcode cq_op; | |
302 | int err; | |
303 | unsigned long flag; | |
304 | u32 rptr; | |
305 | ||
306 | chp = to_iwch_cq(ibcq); | |
307 | rhp = chp->rhp; | |
ed23a727 | 308 | if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED) |
b038ced7 SW |
309 | cq_op = CQ_ARM_SE; |
310 | else | |
311 | cq_op = CQ_ARM_AN; | |
312 | if (chp->user_rptr_addr) { | |
313 | if (get_user(rptr, chp->user_rptr_addr)) | |
314 | return -EFAULT; | |
315 | spin_lock_irqsave(&chp->lock, flag); | |
316 | chp->cq.rptr = rptr; | |
317 | } else | |
318 | spin_lock_irqsave(&chp->lock, flag); | |
33718363 | 319 | PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr); |
b038ced7 SW |
320 | err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0); |
321 | spin_unlock_irqrestore(&chp->lock, flag); | |
ed23a727 | 322 | if (err < 0) |
b038ced7 SW |
323 | printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err, |
324 | chp->cq.cqid); | |
ed23a727 RD |
325 | if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS)) |
326 | err = 0; | |
b038ced7 SW |
327 | return err; |
328 | } | |
329 | ||
330 | static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
331 | { | |
332 | int len = vma->vm_end - vma->vm_start; | |
333 | u32 key = vma->vm_pgoff << PAGE_SHIFT; | |
334 | struct cxio_rdev *rdev_p; | |
335 | int ret = 0; | |
336 | struct iwch_mm_entry *mm; | |
337 | struct iwch_ucontext *ucontext; | |
aeb100e2 | 338 | u64 addr; |
b038ced7 | 339 | |
33718363 | 340 | PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff, |
b038ced7 SW |
341 | key, len); |
342 | ||
343 | if (vma->vm_start & (PAGE_SIZE-1)) { | |
344 | return -EINVAL; | |
345 | } | |
346 | ||
347 | rdev_p = &(to_iwch_dev(context->device)->rdev); | |
348 | ucontext = to_iwch_ucontext(context); | |
349 | ||
350 | mm = remove_mmap(ucontext, key, len); | |
351 | if (!mm) | |
352 | return -EINVAL; | |
aeb100e2 | 353 | addr = mm->addr; |
b038ced7 SW |
354 | kfree(mm); |
355 | ||
aeb100e2 SW |
356 | if ((addr >= rdev_p->rnic_info.udbell_physbase) && |
357 | (addr < (rdev_p->rnic_info.udbell_physbase + | |
b038ced7 SW |
358 | rdev_p->rnic_info.udbell_len))) { |
359 | ||
360 | /* | |
361 | * Map T3 DB register. | |
362 | */ | |
363 | if (vma->vm_flags & VM_READ) { | |
364 | return -EPERM; | |
365 | } | |
366 | ||
367 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
368 | vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; | |
369 | vma->vm_flags &= ~VM_MAYREAD; | |
370 | ret = io_remap_pfn_range(vma, vma->vm_start, | |
aeb100e2 | 371 | addr >> PAGE_SHIFT, |
b038ced7 SW |
372 | len, vma->vm_page_prot); |
373 | } else { | |
374 | ||
375 | /* | |
376 | * Map WQ or CQ contig dma memory... | |
377 | */ | |
378 | ret = remap_pfn_range(vma, vma->vm_start, | |
aeb100e2 | 379 | addr >> PAGE_SHIFT, |
b038ced7 SW |
380 | len, vma->vm_page_prot); |
381 | } | |
382 | ||
383 | return ret; | |
384 | } | |
385 | ||
386 | static int iwch_deallocate_pd(struct ib_pd *pd) | |
387 | { | |
388 | struct iwch_dev *rhp; | |
389 | struct iwch_pd *php; | |
390 | ||
391 | php = to_iwch_pd(pd); | |
392 | rhp = php->rhp; | |
33718363 | 393 | PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid); |
b038ced7 SW |
394 | cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid); |
395 | kfree(php); | |
396 | return 0; | |
397 | } | |
398 | ||
399 | static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev, | |
400 | struct ib_ucontext *context, | |
401 | struct ib_udata *udata) | |
402 | { | |
403 | struct iwch_pd *php; | |
404 | u32 pdid; | |
405 | struct iwch_dev *rhp; | |
406 | ||
33718363 | 407 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
408 | rhp = (struct iwch_dev *) ibdev; |
409 | pdid = cxio_hal_get_pdid(rhp->rdev.rscp); | |
410 | if (!pdid) | |
411 | return ERR_PTR(-EINVAL); | |
412 | php = kzalloc(sizeof(*php), GFP_KERNEL); | |
413 | if (!php) { | |
414 | cxio_hal_put_pdid(rhp->rdev.rscp, pdid); | |
415 | return ERR_PTR(-ENOMEM); | |
416 | } | |
417 | php->pdid = pdid; | |
418 | php->rhp = rhp; | |
419 | if (context) { | |
420 | if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) { | |
421 | iwch_deallocate_pd(&php->ibpd); | |
422 | return ERR_PTR(-EFAULT); | |
423 | } | |
424 | } | |
33718363 | 425 | PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php); |
b038ced7 SW |
426 | return &php->ibpd; |
427 | } | |
428 | ||
429 | static int iwch_dereg_mr(struct ib_mr *ib_mr) | |
430 | { | |
431 | struct iwch_dev *rhp; | |
432 | struct iwch_mr *mhp; | |
433 | u32 mmid; | |
434 | ||
33718363 | 435 | PDBG("%s ib_mr %p\n", __func__, ib_mr); |
b038ced7 SW |
436 | /* There can be no memory windows */ |
437 | if (atomic_read(&ib_mr->usecnt)) | |
438 | return -EINVAL; | |
439 | ||
440 | mhp = to_iwch_mr(ib_mr); | |
441 | rhp = mhp->rhp; | |
442 | mmid = mhp->attr.stag >> 8; | |
443 | cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, | |
444 | mhp->attr.pbl_addr); | |
445 | remove_handle(rhp, &rhp->mmidr, mmid); | |
446 | if (mhp->kva) | |
447 | kfree((void *) (unsigned long) mhp->kva); | |
f7c6a7b5 RD |
448 | if (mhp->umem) |
449 | ib_umem_release(mhp->umem); | |
33718363 | 450 | PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp); |
b038ced7 SW |
451 | kfree(mhp); |
452 | return 0; | |
453 | } | |
454 | ||
455 | static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd, | |
456 | struct ib_phys_buf *buffer_list, | |
457 | int num_phys_buf, | |
458 | int acc, | |
459 | u64 *iova_start) | |
460 | { | |
461 | __be64 *page_list; | |
462 | int shift; | |
463 | u64 total_size; | |
464 | int npages; | |
465 | struct iwch_dev *rhp; | |
466 | struct iwch_pd *php; | |
467 | struct iwch_mr *mhp; | |
468 | int ret; | |
469 | ||
33718363 | 470 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
471 | php = to_iwch_pd(pd); |
472 | rhp = php->rhp; | |
473 | ||
b038ced7 SW |
474 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); |
475 | if (!mhp) | |
476 | return ERR_PTR(-ENOMEM); | |
477 | ||
478 | /* First check that we have enough alignment */ | |
479 | if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) { | |
480 | ret = -EINVAL; | |
481 | goto err; | |
482 | } | |
483 | ||
484 | if (num_phys_buf > 1 && | |
485 | ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) { | |
486 | ret = -EINVAL; | |
487 | goto err; | |
488 | } | |
489 | ||
490 | ret = build_phys_page_list(buffer_list, num_phys_buf, iova_start, | |
491 | &total_size, &npages, &shift, &page_list); | |
492 | if (ret) | |
493 | goto err; | |
494 | ||
495 | mhp->rhp = rhp; | |
496 | mhp->attr.pdid = php->pdid; | |
497 | mhp->attr.zbva = 0; | |
498 | ||
e64518f3 | 499 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
b038ced7 SW |
500 | mhp->attr.va_fbo = *iova_start; |
501 | mhp->attr.page_size = shift - 12; | |
502 | ||
503 | mhp->attr.len = (u32) total_size; | |
504 | mhp->attr.pbl_size = npages; | |
505 | ret = iwch_register_mem(rhp, php, mhp, shift, page_list); | |
506 | kfree(page_list); | |
507 | if (ret) { | |
508 | goto err; | |
509 | } | |
510 | return &mhp->ibmr; | |
511 | err: | |
512 | kfree(mhp); | |
513 | return ERR_PTR(ret); | |
514 | ||
515 | } | |
516 | ||
517 | static int iwch_reregister_phys_mem(struct ib_mr *mr, | |
518 | int mr_rereg_mask, | |
519 | struct ib_pd *pd, | |
520 | struct ib_phys_buf *buffer_list, | |
521 | int num_phys_buf, | |
522 | int acc, u64 * iova_start) | |
523 | { | |
524 | ||
525 | struct iwch_mr mh, *mhp; | |
526 | struct iwch_pd *php; | |
527 | struct iwch_dev *rhp; | |
b038ced7 SW |
528 | __be64 *page_list = NULL; |
529 | int shift = 0; | |
530 | u64 total_size; | |
531 | int npages; | |
532 | int ret; | |
533 | ||
33718363 | 534 | PDBG("%s ib_mr %p ib_pd %p\n", __func__, mr, pd); |
b038ced7 SW |
535 | |
536 | /* There can be no memory windows */ | |
537 | if (atomic_read(&mr->usecnt)) | |
538 | return -EINVAL; | |
539 | ||
540 | mhp = to_iwch_mr(mr); | |
541 | rhp = mhp->rhp; | |
542 | php = to_iwch_pd(mr->pd); | |
543 | ||
544 | /* make sure we are on the same adapter */ | |
545 | if (rhp != php->rhp) | |
546 | return -EINVAL; | |
547 | ||
b038ced7 SW |
548 | memcpy(&mh, mhp, sizeof *mhp); |
549 | ||
550 | if (mr_rereg_mask & IB_MR_REREG_PD) | |
551 | php = to_iwch_pd(pd); | |
552 | if (mr_rereg_mask & IB_MR_REREG_ACCESS) | |
e64518f3 | 553 | mh.attr.perms = iwch_ib_to_tpt_access(acc); |
d6013471 | 554 | if (mr_rereg_mask & IB_MR_REREG_TRANS) { |
b038ced7 SW |
555 | ret = build_phys_page_list(buffer_list, num_phys_buf, |
556 | iova_start, | |
557 | &total_size, &npages, | |
558 | &shift, &page_list); | |
d6013471 SW |
559 | if (ret) |
560 | return ret; | |
561 | } | |
b038ced7 SW |
562 | |
563 | ret = iwch_reregister_mem(rhp, php, &mh, shift, page_list, npages); | |
564 | kfree(page_list); | |
565 | if (ret) { | |
566 | return ret; | |
567 | } | |
568 | if (mr_rereg_mask & IB_MR_REREG_PD) | |
569 | mhp->attr.pdid = php->pdid; | |
570 | if (mr_rereg_mask & IB_MR_REREG_ACCESS) | |
e64518f3 | 571 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
b038ced7 SW |
572 | if (mr_rereg_mask & IB_MR_REREG_TRANS) { |
573 | mhp->attr.zbva = 0; | |
574 | mhp->attr.va_fbo = *iova_start; | |
575 | mhp->attr.page_size = shift - 12; | |
576 | mhp->attr.len = (u32) total_size; | |
577 | mhp->attr.pbl_size = npages; | |
578 | } | |
579 | ||
580 | return 0; | |
581 | } | |
582 | ||
583 | ||
f7c6a7b5 RD |
584 | static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, |
585 | u64 virt, int acc, struct ib_udata *udata) | |
b038ced7 SW |
586 | { |
587 | __be64 *pages; | |
588 | int shift, n, len; | |
589 | int i, j, k; | |
590 | int err = 0; | |
591 | struct ib_umem_chunk *chunk; | |
592 | struct iwch_dev *rhp; | |
593 | struct iwch_pd *php; | |
594 | struct iwch_mr *mhp; | |
595 | struct iwch_reg_user_mr_resp uresp; | |
596 | ||
33718363 | 597 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
598 | |
599 | php = to_iwch_pd(pd); | |
600 | rhp = php->rhp; | |
601 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
602 | if (!mhp) | |
603 | return ERR_PTR(-ENOMEM); | |
604 | ||
cb9fbc5c | 605 | mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0); |
f7c6a7b5 RD |
606 | if (IS_ERR(mhp->umem)) { |
607 | err = PTR_ERR(mhp->umem); | |
608 | kfree(mhp); | |
609 | return ERR_PTR(err); | |
610 | } | |
611 | ||
612 | shift = ffs(mhp->umem->page_size) - 1; | |
613 | ||
b038ced7 | 614 | n = 0; |
f7c6a7b5 | 615 | list_for_each_entry(chunk, &mhp->umem->chunk_list, list) |
b038ced7 SW |
616 | n += chunk->nents; |
617 | ||
618 | pages = kmalloc(n * sizeof(u64), GFP_KERNEL); | |
619 | if (!pages) { | |
620 | err = -ENOMEM; | |
621 | goto err; | |
622 | } | |
623 | ||
b038ced7 SW |
624 | i = n = 0; |
625 | ||
f7c6a7b5 | 626 | list_for_each_entry(chunk, &mhp->umem->chunk_list, list) |
b038ced7 SW |
627 | for (j = 0; j < chunk->nmap; ++j) { |
628 | len = sg_dma_len(&chunk->page_list[j]) >> shift; | |
629 | for (k = 0; k < len; ++k) { | |
630 | pages[i++] = cpu_to_be64(sg_dma_address( | |
631 | &chunk->page_list[j]) + | |
f7c6a7b5 | 632 | mhp->umem->page_size * k); |
b038ced7 SW |
633 | } |
634 | } | |
635 | ||
636 | mhp->rhp = rhp; | |
637 | mhp->attr.pdid = php->pdid; | |
638 | mhp->attr.zbva = 0; | |
e64518f3 | 639 | mhp->attr.perms = iwch_ib_to_tpt_access(acc); |
f7c6a7b5 | 640 | mhp->attr.va_fbo = virt; |
b038ced7 | 641 | mhp->attr.page_size = shift - 12; |
f7c6a7b5 | 642 | mhp->attr.len = (u32) length; |
b038ced7 SW |
643 | mhp->attr.pbl_size = i; |
644 | err = iwch_register_mem(rhp, php, mhp, shift, pages); | |
645 | kfree(pages); | |
646 | if (err) | |
647 | goto err; | |
648 | ||
8176d297 | 649 | if (udata && !t3a_device(rhp)) { |
b038ced7 SW |
650 | uresp.pbl_addr = (mhp->attr.pbl_addr - |
651 | rhp->rdev.rnic_info.pbl_base) >> 3; | |
33718363 | 652 | PDBG("%s user resp pbl_addr 0x%x\n", __func__, |
b038ced7 SW |
653 | uresp.pbl_addr); |
654 | ||
655 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
656 | iwch_dereg_mr(&mhp->ibmr); | |
657 | err = -EFAULT; | |
658 | goto err; | |
659 | } | |
660 | } | |
661 | ||
662 | return &mhp->ibmr; | |
663 | ||
664 | err: | |
f7c6a7b5 | 665 | ib_umem_release(mhp->umem); |
b038ced7 SW |
666 | kfree(mhp); |
667 | return ERR_PTR(err); | |
668 | } | |
669 | ||
670 | static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc) | |
671 | { | |
672 | struct ib_phys_buf bl; | |
673 | u64 kva; | |
674 | struct ib_mr *ibmr; | |
675 | ||
33718363 | 676 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
677 | |
678 | /* | |
679 | * T3 only supports 32 bits of size. | |
680 | */ | |
681 | bl.size = 0xffffffff; | |
682 | bl.addr = 0; | |
683 | kva = 0; | |
684 | ibmr = iwch_register_phys_mem(pd, &bl, 1, acc, &kva); | |
685 | return ibmr; | |
686 | } | |
687 | ||
688 | static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd) | |
689 | { | |
690 | struct iwch_dev *rhp; | |
691 | struct iwch_pd *php; | |
692 | struct iwch_mw *mhp; | |
693 | u32 mmid; | |
694 | u32 stag = 0; | |
695 | int ret; | |
696 | ||
697 | php = to_iwch_pd(pd); | |
698 | rhp = php->rhp; | |
699 | mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); | |
700 | if (!mhp) | |
701 | return ERR_PTR(-ENOMEM); | |
702 | ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid); | |
703 | if (ret) { | |
704 | kfree(mhp); | |
705 | return ERR_PTR(ret); | |
706 | } | |
707 | mhp->rhp = rhp; | |
708 | mhp->attr.pdid = php->pdid; | |
709 | mhp->attr.type = TPT_MW; | |
710 | mhp->attr.stag = stag; | |
711 | mmid = (stag) >> 8; | |
712 | insert_handle(rhp, &rhp->mmidr, mhp, mmid); | |
33718363 | 713 | PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); |
b038ced7 SW |
714 | return &(mhp->ibmw); |
715 | } | |
716 | ||
717 | static int iwch_dealloc_mw(struct ib_mw *mw) | |
718 | { | |
719 | struct iwch_dev *rhp; | |
720 | struct iwch_mw *mhp; | |
721 | u32 mmid; | |
722 | ||
723 | mhp = to_iwch_mw(mw); | |
724 | rhp = mhp->rhp; | |
725 | mmid = (mw->rkey) >> 8; | |
726 | cxio_deallocate_window(&rhp->rdev, mhp->attr.stag); | |
727 | remove_handle(rhp, &rhp->mmidr, mmid); | |
728 | kfree(mhp); | |
33718363 | 729 | PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp); |
b038ced7 SW |
730 | return 0; |
731 | } | |
732 | ||
733 | static int iwch_destroy_qp(struct ib_qp *ib_qp) | |
734 | { | |
735 | struct iwch_dev *rhp; | |
736 | struct iwch_qp *qhp; | |
737 | struct iwch_qp_attributes attrs; | |
738 | struct iwch_ucontext *ucontext; | |
739 | ||
740 | qhp = to_iwch_qp(ib_qp); | |
741 | rhp = qhp->rhp; | |
742 | ||
2df50da0 SW |
743 | attrs.next_state = IWCH_QP_STATE_ERROR; |
744 | iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0); | |
b038ced7 SW |
745 | wait_event(qhp->wait, !qhp->ep); |
746 | ||
747 | remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid); | |
748 | ||
749 | atomic_dec(&qhp->refcnt); | |
750 | wait_event(qhp->wait, !atomic_read(&qhp->refcnt)); | |
751 | ||
752 | ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context) | |
753 | : NULL; | |
754 | cxio_destroy_qp(&rhp->rdev, &qhp->wq, | |
755 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx); | |
756 | ||
33718363 | 757 | PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__, |
b038ced7 SW |
758 | ib_qp, qhp->wq.qpid, qhp); |
759 | kfree(qhp); | |
760 | return 0; | |
761 | } | |
762 | ||
763 | static struct ib_qp *iwch_create_qp(struct ib_pd *pd, | |
764 | struct ib_qp_init_attr *attrs, | |
765 | struct ib_udata *udata) | |
766 | { | |
767 | struct iwch_dev *rhp; | |
768 | struct iwch_qp *qhp; | |
769 | struct iwch_pd *php; | |
770 | struct iwch_cq *schp; | |
771 | struct iwch_cq *rchp; | |
772 | struct iwch_create_qp_resp uresp; | |
773 | int wqsize, sqsize, rqsize; | |
774 | struct iwch_ucontext *ucontext; | |
775 | ||
33718363 | 776 | PDBG("%s ib_pd %p\n", __func__, pd); |
b038ced7 SW |
777 | if (attrs->qp_type != IB_QPT_RC) |
778 | return ERR_PTR(-EINVAL); | |
779 | php = to_iwch_pd(pd); | |
780 | rhp = php->rhp; | |
781 | schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid); | |
782 | rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid); | |
783 | if (!schp || !rchp) | |
784 | return ERR_PTR(-EINVAL); | |
785 | ||
786 | /* The RQT size must be # of entries + 1 rounded up to a power of two */ | |
787 | rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr); | |
788 | if (rqsize == attrs->cap.max_recv_wr) | |
789 | rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1); | |
790 | ||
791 | /* T3 doesn't support RQT depth < 16 */ | |
792 | if (rqsize < 16) | |
793 | rqsize = 16; | |
794 | ||
795 | if (rqsize > T3_MAX_RQ_SIZE) | |
796 | return ERR_PTR(-EINVAL); | |
797 | ||
1860cdf8 SW |
798 | if (attrs->cap.max_inline_data > T3_MAX_INLINE) |
799 | return ERR_PTR(-EINVAL); | |
800 | ||
b038ced7 SW |
801 | /* |
802 | * NOTE: The SQ and total WQ sizes don't need to be | |
803 | * a power of two. However, all the code assumes | |
804 | * they are. EG: Q_FREECNT() and friends. | |
805 | */ | |
806 | sqsize = roundup_pow_of_two(attrs->cap.max_send_wr); | |
807 | wqsize = roundup_pow_of_two(rqsize + sqsize); | |
33718363 | 808 | PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__, |
b038ced7 SW |
809 | wqsize, sqsize, rqsize); |
810 | qhp = kzalloc(sizeof(*qhp), GFP_KERNEL); | |
811 | if (!qhp) | |
812 | return ERR_PTR(-ENOMEM); | |
813 | qhp->wq.size_log2 = ilog2(wqsize); | |
814 | qhp->wq.rq_size_log2 = ilog2(rqsize); | |
815 | qhp->wq.sq_size_log2 = ilog2(sqsize); | |
816 | ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL; | |
817 | if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq, | |
818 | ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) { | |
819 | kfree(qhp); | |
820 | return ERR_PTR(-ENOMEM); | |
821 | } | |
1bab74e6 | 822 | |
b038ced7 SW |
823 | attrs->cap.max_recv_wr = rqsize - 1; |
824 | attrs->cap.max_send_wr = sqsize; | |
1bab74e6 JM |
825 | attrs->cap.max_inline_data = T3_MAX_INLINE; |
826 | ||
b038ced7 SW |
827 | qhp->rhp = rhp; |
828 | qhp->attr.pd = php->pdid; | |
829 | qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid; | |
830 | qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid; | |
831 | qhp->attr.sq_num_entries = attrs->cap.max_send_wr; | |
832 | qhp->attr.rq_num_entries = attrs->cap.max_recv_wr; | |
833 | qhp->attr.sq_max_sges = attrs->cap.max_send_sge; | |
834 | qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge; | |
835 | qhp->attr.rq_max_sges = attrs->cap.max_recv_sge; | |
836 | qhp->attr.state = IWCH_QP_STATE_IDLE; | |
837 | qhp->attr.next_state = IWCH_QP_STATE_IDLE; | |
838 | ||
839 | /* | |
840 | * XXX - These don't get passed in from the openib user | |
841 | * at create time. The CM sets them via a QP modify. | |
842 | * Need to fix... I think the CM should | |
843 | */ | |
844 | qhp->attr.enable_rdma_read = 1; | |
845 | qhp->attr.enable_rdma_write = 1; | |
846 | qhp->attr.enable_bind = 1; | |
847 | qhp->attr.max_ord = 1; | |
848 | qhp->attr.max_ird = 1; | |
849 | ||
850 | spin_lock_init(&qhp->lock); | |
851 | init_waitqueue_head(&qhp->wait); | |
852 | atomic_set(&qhp->refcnt, 1); | |
853 | insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid); | |
854 | ||
855 | if (udata) { | |
856 | ||
857 | struct iwch_mm_entry *mm1, *mm2; | |
858 | ||
859 | mm1 = kmalloc(sizeof *mm1, GFP_KERNEL); | |
860 | if (!mm1) { | |
861 | iwch_destroy_qp(&qhp->ibqp); | |
862 | return ERR_PTR(-ENOMEM); | |
863 | } | |
864 | ||
865 | mm2 = kmalloc(sizeof *mm2, GFP_KERNEL); | |
866 | if (!mm2) { | |
867 | kfree(mm1); | |
868 | iwch_destroy_qp(&qhp->ibqp); | |
869 | return ERR_PTR(-ENOMEM); | |
870 | } | |
871 | ||
872 | uresp.qpid = qhp->wq.qpid; | |
873 | uresp.size_log2 = qhp->wq.size_log2; | |
874 | uresp.sq_size_log2 = qhp->wq.sq_size_log2; | |
875 | uresp.rq_size_log2 = qhp->wq.rq_size_log2; | |
876 | spin_lock(&ucontext->mmap_lock); | |
877 | uresp.key = ucontext->key; | |
878 | ucontext->key += PAGE_SIZE; | |
879 | uresp.db_key = ucontext->key; | |
880 | ucontext->key += PAGE_SIZE; | |
881 | spin_unlock(&ucontext->mmap_lock); | |
882 | if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) { | |
883 | kfree(mm1); | |
884 | kfree(mm2); | |
885 | iwch_destroy_qp(&qhp->ibqp); | |
886 | return ERR_PTR(-EFAULT); | |
887 | } | |
888 | mm1->key = uresp.key; | |
889 | mm1->addr = virt_to_phys(qhp->wq.queue); | |
890 | mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr)); | |
891 | insert_mmap(ucontext, mm1); | |
892 | mm2->key = uresp.db_key; | |
893 | mm2->addr = qhp->wq.udb & PAGE_MASK; | |
894 | mm2->len = PAGE_SIZE; | |
895 | insert_mmap(ucontext, mm2); | |
896 | } | |
897 | qhp->ibqp.qp_num = qhp->wq.qpid; | |
898 | init_timer(&(qhp->timer)); | |
899 | PDBG("%s sq_num_entries %d, rq_num_entries %d " | |
900 | "qpid 0x%0x qhp %p dma_addr 0x%llx size %d\n", | |
33718363 | 901 | __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries, |
b038ced7 SW |
902 | qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr, |
903 | 1 << qhp->wq.size_log2); | |
904 | return &qhp->ibqp; | |
905 | } | |
906 | ||
907 | static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
908 | int attr_mask, struct ib_udata *udata) | |
909 | { | |
910 | struct iwch_dev *rhp; | |
911 | struct iwch_qp *qhp; | |
912 | enum iwch_qp_attr_mask mask = 0; | |
913 | struct iwch_qp_attributes attrs; | |
914 | ||
33718363 | 915 | PDBG("%s ib_qp %p\n", __func__, ibqp); |
b038ced7 SW |
916 | |
917 | /* iwarp does not support the RTR state */ | |
918 | if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR)) | |
919 | attr_mask &= ~IB_QP_STATE; | |
920 | ||
921 | /* Make sure we still have something left to do */ | |
922 | if (!attr_mask) | |
923 | return 0; | |
924 | ||
925 | memset(&attrs, 0, sizeof attrs); | |
926 | qhp = to_iwch_qp(ibqp); | |
927 | rhp = qhp->rhp; | |
928 | ||
929 | attrs.next_state = iwch_convert_state(attr->qp_state); | |
930 | attrs.enable_rdma_read = (attr->qp_access_flags & | |
931 | IB_ACCESS_REMOTE_READ) ? 1 : 0; | |
932 | attrs.enable_rdma_write = (attr->qp_access_flags & | |
933 | IB_ACCESS_REMOTE_WRITE) ? 1 : 0; | |
934 | attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0; | |
935 | ||
936 | ||
937 | mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0; | |
938 | mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ? | |
939 | (IWCH_QP_ATTR_ENABLE_RDMA_READ | | |
940 | IWCH_QP_ATTR_ENABLE_RDMA_WRITE | | |
941 | IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0; | |
942 | ||
943 | return iwch_modify_qp(rhp, qhp, mask, &attrs, 0); | |
944 | } | |
945 | ||
946 | void iwch_qp_add_ref(struct ib_qp *qp) | |
947 | { | |
33718363 | 948 | PDBG("%s ib_qp %p\n", __func__, qp); |
b038ced7 SW |
949 | atomic_inc(&(to_iwch_qp(qp)->refcnt)); |
950 | } | |
951 | ||
952 | void iwch_qp_rem_ref(struct ib_qp *qp) | |
953 | { | |
33718363 | 954 | PDBG("%s ib_qp %p\n", __func__, qp); |
b038ced7 SW |
955 | if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt))) |
956 | wake_up(&(to_iwch_qp(qp)->wait)); | |
957 | } | |
958 | ||
2b540355 | 959 | static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn) |
b038ced7 | 960 | { |
33718363 | 961 | PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn); |
b038ced7 SW |
962 | return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn); |
963 | } | |
964 | ||
965 | ||
966 | static int iwch_query_pkey(struct ib_device *ibdev, | |
967 | u8 port, u16 index, u16 * pkey) | |
968 | { | |
33718363 | 969 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
970 | *pkey = 0; |
971 | return 0; | |
972 | } | |
973 | ||
974 | static int iwch_query_gid(struct ib_device *ibdev, u8 port, | |
975 | int index, union ib_gid *gid) | |
976 | { | |
977 | struct iwch_dev *dev; | |
978 | ||
979 | PDBG("%s ibdev %p, port %d, index %d, gid %p\n", | |
33718363 | 980 | __func__, ibdev, port, index, gid); |
b038ced7 SW |
981 | dev = to_iwch_dev(ibdev); |
982 | BUG_ON(port == 0 || port > 2); | |
983 | memset(&(gid->raw[0]), 0, sizeof(gid->raw)); | |
984 | memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6); | |
985 | return 0; | |
986 | } | |
987 | ||
988 | static int iwch_query_device(struct ib_device *ibdev, | |
989 | struct ib_device_attr *props) | |
990 | { | |
991 | ||
992 | struct iwch_dev *dev; | |
33718363 | 993 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
994 | |
995 | dev = to_iwch_dev(ibdev); | |
996 | memset(props, 0, sizeof *props); | |
997 | memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); | |
998 | props->device_cap_flags = dev->device_cap_flags; | |
999 | props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor; | |
1000 | props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device; | |
1001 | props->max_mr_size = ~0ull; | |
1002 | props->max_qp = dev->attr.max_qps; | |
1003 | props->max_qp_wr = dev->attr.max_wrs; | |
1004 | props->max_sge = dev->attr.max_sge_per_wr; | |
1005 | props->max_sge_rd = 1; | |
1006 | props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp; | |
9a766649 | 1007 | props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp; |
b038ced7 SW |
1008 | props->max_cq = dev->attr.max_cqs; |
1009 | props->max_cqe = dev->attr.max_cqes_per_cq; | |
1010 | props->max_mr = dev->attr.max_mem_regs; | |
1011 | props->max_pd = dev->attr.max_pds; | |
1012 | props->local_ca_ack_delay = 0; | |
1013 | ||
1014 | return 0; | |
1015 | } | |
1016 | ||
1017 | static int iwch_query_port(struct ib_device *ibdev, | |
1018 | u8 port, struct ib_port_attr *props) | |
1019 | { | |
33718363 | 1020 | PDBG("%s ibdev %p\n", __func__, ibdev); |
b038ced7 SW |
1021 | props->max_mtu = IB_MTU_4096; |
1022 | props->lid = 0; | |
1023 | props->lmc = 0; | |
1024 | props->sm_lid = 0; | |
1025 | props->sm_sl = 0; | |
1026 | props->state = IB_PORT_ACTIVE; | |
1027 | props->phys_state = 0; | |
1028 | props->port_cap_flags = | |
1029 | IB_PORT_CM_SUP | | |
1030 | IB_PORT_SNMP_TUNNEL_SUP | | |
1031 | IB_PORT_REINIT_SUP | | |
1032 | IB_PORT_DEVICE_MGMT_SUP | | |
1033 | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; | |
1034 | props->gid_tbl_len = 1; | |
1035 | props->pkey_tbl_len = 1; | |
1036 | props->qkey_viol_cntr = 0; | |
1037 | props->active_width = 2; | |
1038 | props->active_speed = 2; | |
1039 | props->max_msg_sz = -1; | |
1040 | ||
1041 | return 0; | |
1042 | } | |
1043 | ||
f4e91eb4 TJ |
1044 | static ssize_t show_rev(struct device *dev, struct device_attribute *attr, |
1045 | char *buf) | |
b038ced7 | 1046 | { |
f4e91eb4 TJ |
1047 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1048 | ibdev.dev); | |
1049 | PDBG("%s dev 0x%p\n", __func__, dev); | |
1050 | return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type); | |
b038ced7 SW |
1051 | } |
1052 | ||
f4e91eb4 | 1053 | static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, char *buf) |
b038ced7 | 1054 | { |
f4e91eb4 TJ |
1055 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1056 | ibdev.dev); | |
b038ced7 | 1057 | struct ethtool_drvinfo info; |
f4e91eb4 | 1058 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
b038ced7 | 1059 | |
f4e91eb4 | 1060 | PDBG("%s dev 0x%p\n", __func__, dev); |
b038ced7 SW |
1061 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
1062 | return sprintf(buf, "%s\n", info.fw_version); | |
1063 | } | |
1064 | ||
f4e91eb4 TJ |
1065 | static ssize_t show_hca(struct device *dev, struct device_attribute *attr, |
1066 | char *buf) | |
b038ced7 | 1067 | { |
f4e91eb4 TJ |
1068 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1069 | ibdev.dev); | |
b038ced7 | 1070 | struct ethtool_drvinfo info; |
f4e91eb4 | 1071 | struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; |
b038ced7 | 1072 | |
f4e91eb4 | 1073 | PDBG("%s dev 0x%p\n", __func__, dev); |
b038ced7 SW |
1074 | lldev->ethtool_ops->get_drvinfo(lldev, &info); |
1075 | return sprintf(buf, "%s\n", info.driver); | |
1076 | } | |
1077 | ||
f4e91eb4 TJ |
1078 | static ssize_t show_board(struct device *dev, struct device_attribute *attr, |
1079 | char *buf) | |
b038ced7 | 1080 | { |
f4e91eb4 TJ |
1081 | struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev, |
1082 | ibdev.dev); | |
1083 | PDBG("%s dev 0x%p\n", __func__, dev); | |
1084 | return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor, | |
1085 | iwch_dev->rdev.rnic_info.pdev->device); | |
b038ced7 SW |
1086 | } |
1087 | ||
f4e91eb4 TJ |
1088 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
1089 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
1090 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
1091 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
b038ced7 | 1092 | |
f4e91eb4 TJ |
1093 | static struct device_attribute *iwch_class_attributes[] = { |
1094 | &dev_attr_hw_rev, | |
1095 | &dev_attr_fw_ver, | |
1096 | &dev_attr_hca_type, | |
1097 | &dev_attr_board_id | |
b038ced7 SW |
1098 | }; |
1099 | ||
1100 | int iwch_register_device(struct iwch_dev *dev) | |
1101 | { | |
1102 | int ret; | |
1103 | int i; | |
1104 | ||
33718363 | 1105 | PDBG("%s iwch_dev %p\n", __func__, dev); |
b038ced7 SW |
1106 | strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX); |
1107 | memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); | |
1108 | memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6); | |
1109 | dev->ibdev.owner = THIS_MODULE; | |
1110 | dev->device_cap_flags = | |
0f39cf3d | 1111 | (IB_DEVICE_ZERO_STAG | IB_DEVICE_MEM_WINDOW); |
b038ced7 SW |
1112 | |
1113 | dev->ibdev.uverbs_cmd_mask = | |
1114 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1115 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1116 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1117 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1118 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1119 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1120 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1121 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1122 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
1123 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
1124 | (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | | |
1125 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
1126 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
1127 | (1ull << IB_USER_VERBS_CMD_POLL_CQ) | | |
1128 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
1129 | (1ull << IB_USER_VERBS_CMD_POST_SEND) | | |
1130 | (1ull << IB_USER_VERBS_CMD_POST_RECV); | |
1131 | dev->ibdev.node_type = RDMA_NODE_RNIC; | |
1132 | memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC)); | |
1133 | dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports; | |
f4fd0b22 | 1134 | dev->ibdev.num_comp_vectors = 1; |
b038ced7 | 1135 | dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev); |
b038ced7 SW |
1136 | dev->ibdev.query_device = iwch_query_device; |
1137 | dev->ibdev.query_port = iwch_query_port; | |
1138 | dev->ibdev.modify_port = iwch_modify_port; | |
1139 | dev->ibdev.query_pkey = iwch_query_pkey; | |
1140 | dev->ibdev.query_gid = iwch_query_gid; | |
1141 | dev->ibdev.alloc_ucontext = iwch_alloc_ucontext; | |
1142 | dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext; | |
1143 | dev->ibdev.mmap = iwch_mmap; | |
1144 | dev->ibdev.alloc_pd = iwch_allocate_pd; | |
1145 | dev->ibdev.dealloc_pd = iwch_deallocate_pd; | |
1146 | dev->ibdev.create_ah = iwch_ah_create; | |
1147 | dev->ibdev.destroy_ah = iwch_ah_destroy; | |
1148 | dev->ibdev.create_qp = iwch_create_qp; | |
1149 | dev->ibdev.modify_qp = iwch_ib_modify_qp; | |
1150 | dev->ibdev.destroy_qp = iwch_destroy_qp; | |
1151 | dev->ibdev.create_cq = iwch_create_cq; | |
1152 | dev->ibdev.destroy_cq = iwch_destroy_cq; | |
1153 | dev->ibdev.resize_cq = iwch_resize_cq; | |
1154 | dev->ibdev.poll_cq = iwch_poll_cq; | |
1155 | dev->ibdev.get_dma_mr = iwch_get_dma_mr; | |
1156 | dev->ibdev.reg_phys_mr = iwch_register_phys_mem; | |
1157 | dev->ibdev.rereg_phys_mr = iwch_reregister_phys_mem; | |
1158 | dev->ibdev.reg_user_mr = iwch_reg_user_mr; | |
1159 | dev->ibdev.dereg_mr = iwch_dereg_mr; | |
1160 | dev->ibdev.alloc_mw = iwch_alloc_mw; | |
1161 | dev->ibdev.bind_mw = iwch_bind_mw; | |
1162 | dev->ibdev.dealloc_mw = iwch_dealloc_mw; | |
1163 | ||
1164 | dev->ibdev.attach_mcast = iwch_multicast_attach; | |
1165 | dev->ibdev.detach_mcast = iwch_multicast_detach; | |
1166 | dev->ibdev.process_mad = iwch_process_mad; | |
1167 | ||
1168 | dev->ibdev.req_notify_cq = iwch_arm_cq; | |
1169 | dev->ibdev.post_send = iwch_post_send; | |
1170 | dev->ibdev.post_recv = iwch_post_receive; | |
1171 | ||
1172 | ||
6abb6ea8 WC |
1173 | dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); |
1174 | if (!dev->ibdev.iwcm) | |
1175 | return -ENOMEM; | |
1176 | ||
b038ced7 SW |
1177 | dev->ibdev.iwcm->connect = iwch_connect; |
1178 | dev->ibdev.iwcm->accept = iwch_accept_cr; | |
1179 | dev->ibdev.iwcm->reject = iwch_reject_cr; | |
1180 | dev->ibdev.iwcm->create_listen = iwch_create_listen; | |
1181 | dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen; | |
1182 | dev->ibdev.iwcm->add_ref = iwch_qp_add_ref; | |
1183 | dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref; | |
1184 | dev->ibdev.iwcm->get_qp = iwch_get_qp; | |
1185 | ||
1186 | ret = ib_register_device(&dev->ibdev); | |
1187 | if (ret) | |
1188 | goto bail1; | |
1189 | ||
1190 | for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) { | |
f4e91eb4 TJ |
1191 | ret = device_create_file(&dev->ibdev.dev, |
1192 | iwch_class_attributes[i]); | |
b038ced7 SW |
1193 | if (ret) { |
1194 | goto bail2; | |
1195 | } | |
1196 | } | |
1197 | return 0; | |
1198 | bail2: | |
1199 | ib_unregister_device(&dev->ibdev); | |
1200 | bail1: | |
1201 | return ret; | |
1202 | } | |
1203 | ||
1204 | void iwch_unregister_device(struct iwch_dev *dev) | |
1205 | { | |
1206 | int i; | |
1207 | ||
33718363 | 1208 | PDBG("%s iwch_dev %p\n", __func__, dev); |
b038ced7 | 1209 | for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) |
f4e91eb4 TJ |
1210 | device_remove_file(&dev->ibdev.dev, |
1211 | iwch_class_attributes[i]); | |
b038ced7 SW |
1212 | ib_unregister_device(&dev->ibdev); |
1213 | return; | |
1214 | } |