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fab97220 HS |
1 | /* |
2 | * IBM eServer eHCA Infiniband device driver for Linux on POWER | |
3 | * | |
4 | * MR/MW functions | |
5 | * | |
6 | * Authors: Dietmar Decker <ddecker@de.ibm.com> | |
7 | * Christoph Raisch <raisch@de.ibm.com> | |
5bb7d929 | 8 | * Hoang-Nam Nguyen <hnguyen@de.ibm.com> |
fab97220 HS |
9 | * |
10 | * Copyright (c) 2005 IBM Corporation | |
11 | * | |
12 | * All rights reserved. | |
13 | * | |
14 | * This source code is distributed under a dual license of GPL v2.0 and OpenIB | |
15 | * BSD. | |
16 | * | |
17 | * OpenIB BSD License | |
18 | * | |
19 | * Redistribution and use in source and binary forms, with or without | |
20 | * modification, are permitted provided that the following conditions are met: | |
21 | * | |
22 | * Redistributions of source code must retain the above copyright notice, this | |
23 | * list of conditions and the following disclaimer. | |
24 | * | |
25 | * Redistributions in binary form must reproduce the above copyright notice, | |
26 | * this list of conditions and the following disclaimer in the documentation | |
27 | * and/or other materials | |
28 | * provided with the distribution. | |
29 | * | |
30 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
31 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
32 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
33 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
34 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
35 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
36 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
37 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | |
38 | * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
39 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
40 | * POSSIBILITY OF SUCH DAMAGE. | |
41 | */ | |
42 | ||
43 | #include <asm/current.h> | |
44 | ||
05d989f9 HNN |
45 | #include <rdma/ib_umem.h> |
46 | ||
fab97220 HS |
47 | #include "ehca_iverbs.h" |
48 | #include "ehca_mrmw.h" | |
49 | #include "hcp_if.h" | |
50 | #include "hipz_hw.h" | |
51 | ||
2492398e HNN |
52 | #define NUM_CHUNKS(length, chunk_size) \ |
53 | (((length) + (chunk_size - 1)) / (chunk_size)) | |
3a31c419 | 54 | |
4e4e74ca HNN |
55 | /* max number of rpages (per hcall register_rpages) */ |
56 | #define MAX_RPAGES 512 | |
57 | ||
fab97220 HS |
58 | static struct kmem_cache *mr_cache; |
59 | static struct kmem_cache *mw_cache; | |
60 | ||
5bb7d929 HNN |
61 | enum ehca_mr_pgsize { |
62 | EHCA_MR_PGSIZE4K = 0x1000L, | |
63 | EHCA_MR_PGSIZE64K = 0x10000L, | |
64 | EHCA_MR_PGSIZE1M = 0x100000L, | |
65 | EHCA_MR_PGSIZE16M = 0x1000000L | |
66 | }; | |
67 | ||
3a31c419 JF |
68 | #define EHCA_MR_PGSHIFT4K 12 |
69 | #define EHCA_MR_PGSHIFT64K 16 | |
70 | #define EHCA_MR_PGSHIFT1M 20 | |
71 | #define EHCA_MR_PGSHIFT16M 24 | |
72 | ||
5bb7d929 HNN |
73 | static u32 ehca_encode_hwpage_size(u32 pgsize) |
74 | { | |
75 | u32 idx = 0; | |
76 | pgsize >>= 12; | |
77 | /* | |
78 | * map mr page size into hw code: | |
79 | * 0, 1, 2, 3 for 4K, 64K, 1M, 64M | |
80 | */ | |
81 | while (!(pgsize & 1)) { | |
82 | idx++; | |
83 | pgsize >>= 4; | |
84 | } | |
85 | return idx; | |
86 | } | |
87 | ||
88 | static u64 ehca_get_max_hwpage_size(struct ehca_shca *shca) | |
89 | { | |
90 | if (shca->hca_cap_mr_pgsize & HCA_CAP_MR_PGSIZE_16M) | |
91 | return EHCA_MR_PGSIZE16M; | |
92 | return EHCA_MR_PGSIZE4K; | |
93 | } | |
94 | ||
fab97220 HS |
95 | static struct ehca_mr *ehca_mr_new(void) |
96 | { | |
97 | struct ehca_mr *me; | |
98 | ||
c3762229 | 99 | me = kmem_cache_zalloc(mr_cache, GFP_KERNEL); |
2b94397a | 100 | if (me) |
fab97220 | 101 | spin_lock_init(&me->mrlock); |
2b94397a | 102 | else |
fab97220 HS |
103 | ehca_gen_err("alloc failed"); |
104 | ||
105 | return me; | |
106 | } | |
107 | ||
108 | static void ehca_mr_delete(struct ehca_mr *me) | |
109 | { | |
110 | kmem_cache_free(mr_cache, me); | |
111 | } | |
112 | ||
113 | static struct ehca_mw *ehca_mw_new(void) | |
114 | { | |
115 | struct ehca_mw *me; | |
116 | ||
c3762229 | 117 | me = kmem_cache_zalloc(mw_cache, GFP_KERNEL); |
2b94397a | 118 | if (me) |
fab97220 | 119 | spin_lock_init(&me->mwlock); |
2b94397a | 120 | else |
fab97220 HS |
121 | ehca_gen_err("alloc failed"); |
122 | ||
123 | return me; | |
124 | } | |
125 | ||
126 | static void ehca_mw_delete(struct ehca_mw *me) | |
127 | { | |
128 | kmem_cache_free(mw_cache, me); | |
129 | } | |
130 | ||
131 | /*----------------------------------------------------------------------*/ | |
132 | ||
133 | struct ib_mr *ehca_get_dma_mr(struct ib_pd *pd, int mr_access_flags) | |
134 | { | |
135 | struct ib_mr *ib_mr; | |
136 | int ret; | |
137 | struct ehca_mr *e_maxmr; | |
138 | struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); | |
139 | struct ehca_shca *shca = | |
140 | container_of(pd->device, struct ehca_shca, ib_device); | |
141 | ||
142 | if (shca->maxmr) { | |
143 | e_maxmr = ehca_mr_new(); | |
144 | if (!e_maxmr) { | |
145 | ehca_err(&shca->ib_device, "out of memory"); | |
146 | ib_mr = ERR_PTR(-ENOMEM); | |
147 | goto get_dma_mr_exit0; | |
148 | } | |
149 | ||
2b94397a | 150 | ret = ehca_reg_maxmr(shca, e_maxmr, (u64 *)KERNELBASE, |
fab97220 HS |
151 | mr_access_flags, e_pd, |
152 | &e_maxmr->ib.ib_mr.lkey, | |
153 | &e_maxmr->ib.ib_mr.rkey); | |
154 | if (ret) { | |
3df78f81 | 155 | ehca_mr_delete(e_maxmr); |
fab97220 HS |
156 | ib_mr = ERR_PTR(ret); |
157 | goto get_dma_mr_exit0; | |
158 | } | |
159 | ib_mr = &e_maxmr->ib.ib_mr; | |
160 | } else { | |
161 | ehca_err(&shca->ib_device, "no internal max-MR exist!"); | |
162 | ib_mr = ERR_PTR(-EINVAL); | |
163 | goto get_dma_mr_exit0; | |
164 | } | |
165 | ||
166 | get_dma_mr_exit0: | |
167 | if (IS_ERR(ib_mr)) | |
e3722192 | 168 | ehca_err(&shca->ib_device, "h_ret=%li pd=%p mr_access_flags=%x", |
fab97220 HS |
169 | PTR_ERR(ib_mr), pd, mr_access_flags); |
170 | return ib_mr; | |
171 | } /* end ehca_get_dma_mr() */ | |
172 | ||
173 | /*----------------------------------------------------------------------*/ | |
174 | ||
175 | struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, | |
176 | struct ib_phys_buf *phys_buf_array, | |
177 | int num_phys_buf, | |
178 | int mr_access_flags, | |
179 | u64 *iova_start) | |
180 | { | |
181 | struct ib_mr *ib_mr; | |
182 | int ret; | |
183 | struct ehca_mr *e_mr; | |
184 | struct ehca_shca *shca = | |
185 | container_of(pd->device, struct ehca_shca, ib_device); | |
186 | struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); | |
187 | ||
188 | u64 size; | |
fab97220 HS |
189 | |
190 | if ((num_phys_buf <= 0) || !phys_buf_array) { | |
191 | ehca_err(pd->device, "bad input values: num_phys_buf=%x " | |
192 | "phys_buf_array=%p", num_phys_buf, phys_buf_array); | |
193 | ib_mr = ERR_PTR(-EINVAL); | |
194 | goto reg_phys_mr_exit0; | |
195 | } | |
196 | if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && | |
197 | !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || | |
198 | ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && | |
199 | !(mr_access_flags & IB_ACCESS_LOCAL_WRITE))) { | |
200 | /* | |
201 | * Remote Write Access requires Local Write Access | |
202 | * Remote Atomic Access requires Local Write Access | |
203 | */ | |
204 | ehca_err(pd->device, "bad input values: mr_access_flags=%x", | |
205 | mr_access_flags); | |
206 | ib_mr = ERR_PTR(-EINVAL); | |
207 | goto reg_phys_mr_exit0; | |
208 | } | |
209 | ||
210 | /* check physical buffer list and calculate size */ | |
211 | ret = ehca_mr_chk_buf_and_calc_size(phys_buf_array, num_phys_buf, | |
212 | iova_start, &size); | |
213 | if (ret) { | |
214 | ib_mr = ERR_PTR(ret); | |
215 | goto reg_phys_mr_exit0; | |
216 | } | |
217 | if ((size == 0) || | |
218 | (((u64)iova_start + size) < (u64)iova_start)) { | |
219 | ehca_err(pd->device, "bad input values: size=%lx iova_start=%p", | |
220 | size, iova_start); | |
221 | ib_mr = ERR_PTR(-EINVAL); | |
222 | goto reg_phys_mr_exit0; | |
223 | } | |
224 | ||
225 | e_mr = ehca_mr_new(); | |
226 | if (!e_mr) { | |
227 | ehca_err(pd->device, "out of memory"); | |
228 | ib_mr = ERR_PTR(-ENOMEM); | |
229 | goto reg_phys_mr_exit0; | |
230 | } | |
231 | ||
fab97220 HS |
232 | /* register MR on HCA */ |
233 | if (ehca_mr_is_maxmr(size, iova_start)) { | |
234 | e_mr->flags |= EHCA_MR_FLAG_MAXMR; | |
235 | ret = ehca_reg_maxmr(shca, e_mr, iova_start, mr_access_flags, | |
236 | e_pd, &e_mr->ib.ib_mr.lkey, | |
237 | &e_mr->ib.ib_mr.rkey); | |
238 | if (ret) { | |
239 | ib_mr = ERR_PTR(ret); | |
240 | goto reg_phys_mr_exit1; | |
241 | } | |
242 | } else { | |
df17bfd4 HNN |
243 | struct ehca_mr_pginfo pginfo; |
244 | u32 num_kpages; | |
245 | u32 num_hwpages; | |
5bb7d929 | 246 | u64 hw_pgsize; |
df17bfd4 HNN |
247 | |
248 | num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size, | |
249 | PAGE_SIZE); | |
5bb7d929 HNN |
250 | /* for kernel space we try most possible pgsize */ |
251 | hw_pgsize = ehca_get_max_hwpage_size(shca); | |
252 | num_hwpages = NUM_CHUNKS(((u64)iova_start % hw_pgsize) + size, | |
253 | hw_pgsize); | |
df17bfd4 HNN |
254 | memset(&pginfo, 0, sizeof(pginfo)); |
255 | pginfo.type = EHCA_MR_PGI_PHYS; | |
256 | pginfo.num_kpages = num_kpages; | |
5bb7d929 | 257 | pginfo.hwpage_size = hw_pgsize; |
df17bfd4 HNN |
258 | pginfo.num_hwpages = num_hwpages; |
259 | pginfo.u.phy.num_phys_buf = num_phys_buf; | |
260 | pginfo.u.phy.phys_buf_array = phys_buf_array; | |
5bb7d929 HNN |
261 | pginfo.next_hwpage = |
262 | ((u64)iova_start & ~(hw_pgsize - 1)) / hw_pgsize; | |
fab97220 HS |
263 | |
264 | ret = ehca_reg_mr(shca, e_mr, iova_start, size, mr_access_flags, | |
265 | e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, | |
266 | &e_mr->ib.ib_mr.rkey); | |
267 | if (ret) { | |
268 | ib_mr = ERR_PTR(ret); | |
269 | goto reg_phys_mr_exit1; | |
270 | } | |
271 | } | |
272 | ||
273 | /* successful registration of all pages */ | |
274 | return &e_mr->ib.ib_mr; | |
275 | ||
276 | reg_phys_mr_exit1: | |
277 | ehca_mr_delete(e_mr); | |
278 | reg_phys_mr_exit0: | |
279 | if (IS_ERR(ib_mr)) | |
e3722192 | 280 | ehca_err(pd->device, "h_ret=%li pd=%p phys_buf_array=%p " |
fab97220 HS |
281 | "num_phys_buf=%x mr_access_flags=%x iova_start=%p", |
282 | PTR_ERR(ib_mr), pd, phys_buf_array, | |
283 | num_phys_buf, mr_access_flags, iova_start); | |
284 | return ib_mr; | |
285 | } /* end ehca_reg_phys_mr() */ | |
286 | ||
287 | /*----------------------------------------------------------------------*/ | |
288 | ||
2b94397a HNN |
289 | struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, |
290 | u64 virt, int mr_access_flags, | |
291 | struct ib_udata *udata) | |
fab97220 HS |
292 | { |
293 | struct ib_mr *ib_mr; | |
294 | struct ehca_mr *e_mr; | |
295 | struct ehca_shca *shca = | |
296 | container_of(pd->device, struct ehca_shca, ib_device); | |
297 | struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); | |
df17bfd4 | 298 | struct ehca_mr_pginfo pginfo; |
fab97220 | 299 | int ret; |
df17bfd4 HNN |
300 | u32 num_kpages; |
301 | u32 num_hwpages; | |
5bb7d929 | 302 | u64 hwpage_size; |
fab97220 HS |
303 | |
304 | if (!pd) { | |
305 | ehca_gen_err("bad pd=%p", pd); | |
306 | return ERR_PTR(-EFAULT); | |
307 | } | |
f7c6a7b5 | 308 | |
fab97220 HS |
309 | if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && |
310 | !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || | |
311 | ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && | |
312 | !(mr_access_flags & IB_ACCESS_LOCAL_WRITE))) { | |
313 | /* | |
314 | * Remote Write Access requires Local Write Access | |
315 | * Remote Atomic Access requires Local Write Access | |
316 | */ | |
317 | ehca_err(pd->device, "bad input values: mr_access_flags=%x", | |
318 | mr_access_flags); | |
319 | ib_mr = ERR_PTR(-EINVAL); | |
320 | goto reg_user_mr_exit0; | |
321 | } | |
fab97220 | 322 | |
f7c6a7b5 | 323 | if (length == 0 || virt + length < virt) { |
fab97220 | 324 | ehca_err(pd->device, "bad input values: length=%lx " |
f7c6a7b5 | 325 | "virt_base=%lx", length, virt); |
fab97220 HS |
326 | ib_mr = ERR_PTR(-EINVAL); |
327 | goto reg_user_mr_exit0; | |
328 | } | |
329 | ||
330 | e_mr = ehca_mr_new(); | |
331 | if (!e_mr) { | |
332 | ehca_err(pd->device, "out of memory"); | |
333 | ib_mr = ERR_PTR(-ENOMEM); | |
334 | goto reg_user_mr_exit0; | |
335 | } | |
336 | ||
f7c6a7b5 RD |
337 | e_mr->umem = ib_umem_get(pd->uobject->context, start, length, |
338 | mr_access_flags); | |
339 | if (IS_ERR(e_mr->umem)) { | |
2b94397a | 340 | ib_mr = (void *)e_mr->umem; |
f7c6a7b5 RD |
341 | goto reg_user_mr_exit1; |
342 | } | |
343 | ||
344 | if (e_mr->umem->page_size != PAGE_SIZE) { | |
345 | ehca_err(pd->device, "page size not supported, " | |
346 | "e_mr->umem->page_size=%x", e_mr->umem->page_size); | |
347 | ib_mr = ERR_PTR(-EINVAL); | |
348 | goto reg_user_mr_exit2; | |
349 | } | |
350 | ||
fab97220 | 351 | /* determine number of MR pages */ |
df17bfd4 | 352 | num_kpages = NUM_CHUNKS((virt % PAGE_SIZE) + length, PAGE_SIZE); |
5bb7d929 HNN |
353 | /* select proper hw_pgsize */ |
354 | if (ehca_mr_largepage && | |
355 | (shca->hca_cap_mr_pgsize & HCA_CAP_MR_PGSIZE_16M)) { | |
3a31c419 JF |
356 | int page_shift = PAGE_SHIFT; |
357 | if (e_mr->umem->hugetlb) { | |
358 | /* determine page_shift, clamp between 4K and 16M */ | |
359 | page_shift = (fls64(length - 1) + 3) & ~3; | |
360 | page_shift = min(max(page_shift, EHCA_MR_PGSHIFT4K), | |
361 | EHCA_MR_PGSHIFT16M); | |
362 | } | |
363 | hwpage_size = 1UL << page_shift; | |
5bb7d929 | 364 | } else |
3a31c419 | 365 | hwpage_size = EHCA_MR_PGSIZE4K; /* ehca1 only supports 4k */ |
5bb7d929 | 366 | ehca_dbg(pd->device, "hwpage_size=%lx", hwpage_size); |
fab97220 | 367 | |
5bb7d929 HNN |
368 | reg_user_mr_fallback: |
369 | num_hwpages = NUM_CHUNKS((virt % hwpage_size) + length, hwpage_size); | |
fab97220 | 370 | /* register MR on HCA */ |
df17bfd4 HNN |
371 | memset(&pginfo, 0, sizeof(pginfo)); |
372 | pginfo.type = EHCA_MR_PGI_USER; | |
5bb7d929 | 373 | pginfo.hwpage_size = hwpage_size; |
df17bfd4 HNN |
374 | pginfo.num_kpages = num_kpages; |
375 | pginfo.num_hwpages = num_hwpages; | |
376 | pginfo.u.usr.region = e_mr->umem; | |
5bb7d929 | 377 | pginfo.next_hwpage = e_mr->umem->offset / hwpage_size; |
df17bfd4 HNN |
378 | pginfo.u.usr.next_chunk = list_prepare_entry(pginfo.u.usr.next_chunk, |
379 | (&e_mr->umem->chunk_list), | |
380 | list); | |
fab97220 | 381 | |
2b94397a HNN |
382 | ret = ehca_reg_mr(shca, e_mr, (u64 *)virt, length, mr_access_flags, |
383 | e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, | |
384 | &e_mr->ib.ib_mr.rkey); | |
5bb7d929 HNN |
385 | if (ret == -EINVAL && pginfo.hwpage_size > PAGE_SIZE) { |
386 | ehca_warn(pd->device, "failed to register mr " | |
387 | "with hwpage_size=%lx", hwpage_size); | |
388 | ehca_info(pd->device, "try to register mr with " | |
389 | "kpage_size=%lx", PAGE_SIZE); | |
390 | /* | |
391 | * this means kpages are not contiguous for a hw page | |
392 | * try kernel page size as fallback solution | |
393 | */ | |
394 | hwpage_size = PAGE_SIZE; | |
395 | goto reg_user_mr_fallback; | |
396 | } | |
fab97220 HS |
397 | if (ret) { |
398 | ib_mr = ERR_PTR(ret); | |
f7c6a7b5 | 399 | goto reg_user_mr_exit2; |
fab97220 HS |
400 | } |
401 | ||
402 | /* successful registration of all pages */ | |
403 | return &e_mr->ib.ib_mr; | |
404 | ||
f7c6a7b5 RD |
405 | reg_user_mr_exit2: |
406 | ib_umem_release(e_mr->umem); | |
fab97220 HS |
407 | reg_user_mr_exit1: |
408 | ehca_mr_delete(e_mr); | |
409 | reg_user_mr_exit0: | |
410 | if (IS_ERR(ib_mr)) | |
e3722192 | 411 | ehca_err(pd->device, "rc=%li pd=%p mr_access_flags=%x udata=%p", |
f7c6a7b5 | 412 | PTR_ERR(ib_mr), pd, mr_access_flags, udata); |
fab97220 HS |
413 | return ib_mr; |
414 | } /* end ehca_reg_user_mr() */ | |
415 | ||
416 | /*----------------------------------------------------------------------*/ | |
417 | ||
418 | int ehca_rereg_phys_mr(struct ib_mr *mr, | |
419 | int mr_rereg_mask, | |
420 | struct ib_pd *pd, | |
421 | struct ib_phys_buf *phys_buf_array, | |
422 | int num_phys_buf, | |
423 | int mr_access_flags, | |
424 | u64 *iova_start) | |
425 | { | |
426 | int ret; | |
427 | ||
428 | struct ehca_shca *shca = | |
429 | container_of(mr->device, struct ehca_shca, ib_device); | |
430 | struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); | |
431 | struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); | |
432 | u64 new_size; | |
433 | u64 *new_start; | |
434 | u32 new_acl; | |
435 | struct ehca_pd *new_pd; | |
436 | u32 tmp_lkey, tmp_rkey; | |
437 | unsigned long sl_flags; | |
df17bfd4 HNN |
438 | u32 num_kpages = 0; |
439 | u32 num_hwpages = 0; | |
440 | struct ehca_mr_pginfo pginfo; | |
fab97220 HS |
441 | u32 cur_pid = current->tgid; |
442 | ||
443 | if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && | |
444 | (my_pd->ownpid != cur_pid)) { | |
445 | ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", | |
446 | cur_pid, my_pd->ownpid); | |
447 | ret = -EINVAL; | |
448 | goto rereg_phys_mr_exit0; | |
449 | } | |
450 | ||
451 | if (!(mr_rereg_mask & IB_MR_REREG_TRANS)) { | |
452 | /* TODO not supported, because PHYP rereg hCall needs pages */ | |
453 | ehca_err(mr->device, "rereg without IB_MR_REREG_TRANS not " | |
454 | "supported yet, mr_rereg_mask=%x", mr_rereg_mask); | |
455 | ret = -EINVAL; | |
456 | goto rereg_phys_mr_exit0; | |
457 | } | |
458 | ||
459 | if (mr_rereg_mask & IB_MR_REREG_PD) { | |
460 | if (!pd) { | |
461 | ehca_err(mr->device, "rereg with bad pd, pd=%p " | |
462 | "mr_rereg_mask=%x", pd, mr_rereg_mask); | |
463 | ret = -EINVAL; | |
464 | goto rereg_phys_mr_exit0; | |
465 | } | |
466 | } | |
467 | ||
468 | if ((mr_rereg_mask & | |
469 | ~(IB_MR_REREG_TRANS | IB_MR_REREG_PD | IB_MR_REREG_ACCESS)) || | |
470 | (mr_rereg_mask == 0)) { | |
471 | ret = -EINVAL; | |
472 | goto rereg_phys_mr_exit0; | |
473 | } | |
474 | ||
475 | /* check other parameters */ | |
476 | if (e_mr == shca->maxmr) { | |
477 | /* should be impossible, however reject to be sure */ | |
478 | ehca_err(mr->device, "rereg internal max-MR impossible, mr=%p " | |
479 | "shca->maxmr=%p mr->lkey=%x", | |
480 | mr, shca->maxmr, mr->lkey); | |
481 | ret = -EINVAL; | |
482 | goto rereg_phys_mr_exit0; | |
483 | } | |
484 | if (mr_rereg_mask & IB_MR_REREG_TRANS) { /* transl., i.e. addr/size */ | |
485 | if (e_mr->flags & EHCA_MR_FLAG_FMR) { | |
486 | ehca_err(mr->device, "not supported for FMR, mr=%p " | |
487 | "flags=%x", mr, e_mr->flags); | |
488 | ret = -EINVAL; | |
489 | goto rereg_phys_mr_exit0; | |
490 | } | |
491 | if (!phys_buf_array || num_phys_buf <= 0) { | |
2b94397a | 492 | ehca_err(mr->device, "bad input values mr_rereg_mask=%x" |
fab97220 HS |
493 | " phys_buf_array=%p num_phys_buf=%x", |
494 | mr_rereg_mask, phys_buf_array, num_phys_buf); | |
495 | ret = -EINVAL; | |
496 | goto rereg_phys_mr_exit0; | |
497 | } | |
498 | } | |
499 | if ((mr_rereg_mask & IB_MR_REREG_ACCESS) && /* change ACL */ | |
500 | (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && | |
501 | !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || | |
502 | ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && | |
503 | !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)))) { | |
504 | /* | |
505 | * Remote Write Access requires Local Write Access | |
506 | * Remote Atomic Access requires Local Write Access | |
507 | */ | |
508 | ehca_err(mr->device, "bad input values: mr_rereg_mask=%x " | |
509 | "mr_access_flags=%x", mr_rereg_mask, mr_access_flags); | |
510 | ret = -EINVAL; | |
511 | goto rereg_phys_mr_exit0; | |
512 | } | |
513 | ||
514 | /* set requested values dependent on rereg request */ | |
515 | spin_lock_irqsave(&e_mr->mrlock, sl_flags); | |
2b94397a HNN |
516 | new_start = e_mr->start; |
517 | new_size = e_mr->size; | |
518 | new_acl = e_mr->acl; | |
519 | new_pd = container_of(mr->pd, struct ehca_pd, ib_pd); | |
fab97220 HS |
520 | |
521 | if (mr_rereg_mask & IB_MR_REREG_TRANS) { | |
5bb7d929 HNN |
522 | u64 hw_pgsize = ehca_get_max_hwpage_size(shca); |
523 | ||
fab97220 HS |
524 | new_start = iova_start; /* change address */ |
525 | /* check physical buffer list and calculate size */ | |
526 | ret = ehca_mr_chk_buf_and_calc_size(phys_buf_array, | |
527 | num_phys_buf, iova_start, | |
528 | &new_size); | |
529 | if (ret) | |
530 | goto rereg_phys_mr_exit1; | |
531 | if ((new_size == 0) || | |
532 | (((u64)iova_start + new_size) < (u64)iova_start)) { | |
533 | ehca_err(mr->device, "bad input values: new_size=%lx " | |
534 | "iova_start=%p", new_size, iova_start); | |
535 | ret = -EINVAL; | |
536 | goto rereg_phys_mr_exit1; | |
537 | } | |
df17bfd4 HNN |
538 | num_kpages = NUM_CHUNKS(((u64)new_start % PAGE_SIZE) + |
539 | new_size, PAGE_SIZE); | |
5bb7d929 HNN |
540 | num_hwpages = NUM_CHUNKS(((u64)new_start % hw_pgsize) + |
541 | new_size, hw_pgsize); | |
df17bfd4 HNN |
542 | memset(&pginfo, 0, sizeof(pginfo)); |
543 | pginfo.type = EHCA_MR_PGI_PHYS; | |
544 | pginfo.num_kpages = num_kpages; | |
5bb7d929 | 545 | pginfo.hwpage_size = hw_pgsize; |
df17bfd4 HNN |
546 | pginfo.num_hwpages = num_hwpages; |
547 | pginfo.u.phy.num_phys_buf = num_phys_buf; | |
548 | pginfo.u.phy.phys_buf_array = phys_buf_array; | |
5bb7d929 HNN |
549 | pginfo.next_hwpage = |
550 | ((u64)iova_start & ~(hw_pgsize - 1)) / hw_pgsize; | |
fab97220 HS |
551 | } |
552 | if (mr_rereg_mask & IB_MR_REREG_ACCESS) | |
553 | new_acl = mr_access_flags; | |
554 | if (mr_rereg_mask & IB_MR_REREG_PD) | |
555 | new_pd = container_of(pd, struct ehca_pd, ib_pd); | |
556 | ||
557 | ret = ehca_rereg_mr(shca, e_mr, new_start, new_size, new_acl, | |
558 | new_pd, &pginfo, &tmp_lkey, &tmp_rkey); | |
559 | if (ret) | |
560 | goto rereg_phys_mr_exit1; | |
561 | ||
562 | /* successful reregistration */ | |
563 | if (mr_rereg_mask & IB_MR_REREG_PD) | |
564 | mr->pd = pd; | |
565 | mr->lkey = tmp_lkey; | |
566 | mr->rkey = tmp_rkey; | |
567 | ||
568 | rereg_phys_mr_exit1: | |
569 | spin_unlock_irqrestore(&e_mr->mrlock, sl_flags); | |
570 | rereg_phys_mr_exit0: | |
571 | if (ret) | |
e3722192 | 572 | ehca_err(mr->device, "ret=%i mr=%p mr_rereg_mask=%x pd=%p " |
fab97220 HS |
573 | "phys_buf_array=%p num_phys_buf=%x mr_access_flags=%x " |
574 | "iova_start=%p", | |
575 | ret, mr, mr_rereg_mask, pd, phys_buf_array, | |
576 | num_phys_buf, mr_access_flags, iova_start); | |
577 | return ret; | |
578 | } /* end ehca_rereg_phys_mr() */ | |
579 | ||
580 | /*----------------------------------------------------------------------*/ | |
581 | ||
582 | int ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) | |
583 | { | |
584 | int ret = 0; | |
585 | u64 h_ret; | |
586 | struct ehca_shca *shca = | |
587 | container_of(mr->device, struct ehca_shca, ib_device); | |
588 | struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); | |
589 | struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); | |
590 | u32 cur_pid = current->tgid; | |
591 | unsigned long sl_flags; | |
2b94397a | 592 | struct ehca_mr_hipzout_parms hipzout; |
fab97220 HS |
593 | |
594 | if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && | |
595 | (my_pd->ownpid != cur_pid)) { | |
596 | ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", | |
597 | cur_pid, my_pd->ownpid); | |
598 | ret = -EINVAL; | |
599 | goto query_mr_exit0; | |
600 | } | |
601 | ||
602 | if ((e_mr->flags & EHCA_MR_FLAG_FMR)) { | |
603 | ehca_err(mr->device, "not supported for FMR, mr=%p e_mr=%p " | |
604 | "e_mr->flags=%x", mr, e_mr, e_mr->flags); | |
605 | ret = -EINVAL; | |
606 | goto query_mr_exit0; | |
607 | } | |
608 | ||
609 | memset(mr_attr, 0, sizeof(struct ib_mr_attr)); | |
610 | spin_lock_irqsave(&e_mr->mrlock, sl_flags); | |
611 | ||
612 | h_ret = hipz_h_query_mr(shca->ipz_hca_handle, e_mr, &hipzout); | |
613 | if (h_ret != H_SUCCESS) { | |
e3722192 | 614 | ehca_err(mr->device, "hipz_mr_query failed, h_ret=%li mr=%p " |
fab97220 HS |
615 | "hca_hndl=%lx mr_hndl=%lx lkey=%x", |
616 | h_ret, mr, shca->ipz_hca_handle.handle, | |
617 | e_mr->ipz_mr_handle.handle, mr->lkey); | |
a1a6ff11 | 618 | ret = ehca2ib_return_code(h_ret); |
fab97220 HS |
619 | goto query_mr_exit1; |
620 | } | |
df17bfd4 | 621 | mr_attr->pd = mr->pd; |
fab97220 | 622 | mr_attr->device_virt_addr = hipzout.vaddr; |
df17bfd4 HNN |
623 | mr_attr->size = hipzout.len; |
624 | mr_attr->lkey = hipzout.lkey; | |
625 | mr_attr->rkey = hipzout.rkey; | |
fab97220 HS |
626 | ehca_mrmw_reverse_map_acl(&hipzout.acl, &mr_attr->mr_access_flags); |
627 | ||
628 | query_mr_exit1: | |
629 | spin_unlock_irqrestore(&e_mr->mrlock, sl_flags); | |
630 | query_mr_exit0: | |
631 | if (ret) | |
e3722192 | 632 | ehca_err(mr->device, "ret=%i mr=%p mr_attr=%p", |
fab97220 HS |
633 | ret, mr, mr_attr); |
634 | return ret; | |
635 | } /* end ehca_query_mr() */ | |
636 | ||
637 | /*----------------------------------------------------------------------*/ | |
638 | ||
639 | int ehca_dereg_mr(struct ib_mr *mr) | |
640 | { | |
641 | int ret = 0; | |
642 | u64 h_ret; | |
643 | struct ehca_shca *shca = | |
644 | container_of(mr->device, struct ehca_shca, ib_device); | |
645 | struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); | |
646 | struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); | |
647 | u32 cur_pid = current->tgid; | |
648 | ||
649 | if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && | |
650 | (my_pd->ownpid != cur_pid)) { | |
651 | ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", | |
652 | cur_pid, my_pd->ownpid); | |
653 | ret = -EINVAL; | |
654 | goto dereg_mr_exit0; | |
655 | } | |
656 | ||
657 | if ((e_mr->flags & EHCA_MR_FLAG_FMR)) { | |
658 | ehca_err(mr->device, "not supported for FMR, mr=%p e_mr=%p " | |
659 | "e_mr->flags=%x", mr, e_mr, e_mr->flags); | |
660 | ret = -EINVAL; | |
661 | goto dereg_mr_exit0; | |
662 | } else if (e_mr == shca->maxmr) { | |
663 | /* should be impossible, however reject to be sure */ | |
664 | ehca_err(mr->device, "dereg internal max-MR impossible, mr=%p " | |
665 | "shca->maxmr=%p mr->lkey=%x", | |
666 | mr, shca->maxmr, mr->lkey); | |
667 | ret = -EINVAL; | |
668 | goto dereg_mr_exit0; | |
669 | } | |
670 | ||
671 | /* TODO: BUSY: MR still has bound window(s) */ | |
672 | h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); | |
673 | if (h_ret != H_SUCCESS) { | |
e3722192 | 674 | ehca_err(mr->device, "hipz_free_mr failed, h_ret=%li shca=%p " |
fab97220 HS |
675 | "e_mr=%p hca_hndl=%lx mr_hndl=%lx mr->lkey=%x", |
676 | h_ret, shca, e_mr, shca->ipz_hca_handle.handle, | |
677 | e_mr->ipz_mr_handle.handle, mr->lkey); | |
a1a6ff11 | 678 | ret = ehca2ib_return_code(h_ret); |
fab97220 HS |
679 | goto dereg_mr_exit0; |
680 | } | |
681 | ||
f7c6a7b5 RD |
682 | if (e_mr->umem) |
683 | ib_umem_release(e_mr->umem); | |
684 | ||
fab97220 HS |
685 | /* successful deregistration */ |
686 | ehca_mr_delete(e_mr); | |
687 | ||
688 | dereg_mr_exit0: | |
689 | if (ret) | |
e3722192 | 690 | ehca_err(mr->device, "ret=%i mr=%p", ret, mr); |
fab97220 HS |
691 | return ret; |
692 | } /* end ehca_dereg_mr() */ | |
693 | ||
694 | /*----------------------------------------------------------------------*/ | |
695 | ||
696 | struct ib_mw *ehca_alloc_mw(struct ib_pd *pd) | |
697 | { | |
698 | struct ib_mw *ib_mw; | |
699 | u64 h_ret; | |
700 | struct ehca_mw *e_mw; | |
701 | struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); | |
702 | struct ehca_shca *shca = | |
703 | container_of(pd->device, struct ehca_shca, ib_device); | |
2b94397a | 704 | struct ehca_mw_hipzout_parms hipzout; |
fab97220 HS |
705 | |
706 | e_mw = ehca_mw_new(); | |
707 | if (!e_mw) { | |
708 | ib_mw = ERR_PTR(-ENOMEM); | |
709 | goto alloc_mw_exit0; | |
710 | } | |
711 | ||
712 | h_ret = hipz_h_alloc_resource_mw(shca->ipz_hca_handle, e_mw, | |
713 | e_pd->fw_pd, &hipzout); | |
714 | if (h_ret != H_SUCCESS) { | |
e3722192 | 715 | ehca_err(pd->device, "hipz_mw_allocate failed, h_ret=%li " |
fab97220 HS |
716 | "shca=%p hca_hndl=%lx mw=%p", |
717 | h_ret, shca, shca->ipz_hca_handle.handle, e_mw); | |
a1a6ff11 | 718 | ib_mw = ERR_PTR(ehca2ib_return_code(h_ret)); |
fab97220 HS |
719 | goto alloc_mw_exit1; |
720 | } | |
721 | /* successful MW allocation */ | |
722 | e_mw->ipz_mw_handle = hipzout.handle; | |
723 | e_mw->ib_mw.rkey = hipzout.rkey; | |
724 | return &e_mw->ib_mw; | |
725 | ||
726 | alloc_mw_exit1: | |
727 | ehca_mw_delete(e_mw); | |
728 | alloc_mw_exit0: | |
729 | if (IS_ERR(ib_mw)) | |
e3722192 | 730 | ehca_err(pd->device, "h_ret=%li pd=%p", PTR_ERR(ib_mw), pd); |
fab97220 HS |
731 | return ib_mw; |
732 | } /* end ehca_alloc_mw() */ | |
733 | ||
734 | /*----------------------------------------------------------------------*/ | |
735 | ||
736 | int ehca_bind_mw(struct ib_qp *qp, | |
737 | struct ib_mw *mw, | |
738 | struct ib_mw_bind *mw_bind) | |
739 | { | |
740 | /* TODO: not supported up to now */ | |
741 | ehca_gen_err("bind MW currently not supported by HCAD"); | |
742 | ||
743 | return -EPERM; | |
744 | } /* end ehca_bind_mw() */ | |
745 | ||
746 | /*----------------------------------------------------------------------*/ | |
747 | ||
748 | int ehca_dealloc_mw(struct ib_mw *mw) | |
749 | { | |
750 | u64 h_ret; | |
751 | struct ehca_shca *shca = | |
752 | container_of(mw->device, struct ehca_shca, ib_device); | |
753 | struct ehca_mw *e_mw = container_of(mw, struct ehca_mw, ib_mw); | |
754 | ||
755 | h_ret = hipz_h_free_resource_mw(shca->ipz_hca_handle, e_mw); | |
756 | if (h_ret != H_SUCCESS) { | |
e3722192 | 757 | ehca_err(mw->device, "hipz_free_mw failed, h_ret=%li shca=%p " |
fab97220 HS |
758 | "mw=%p rkey=%x hca_hndl=%lx mw_hndl=%lx", |
759 | h_ret, shca, mw, mw->rkey, shca->ipz_hca_handle.handle, | |
760 | e_mw->ipz_mw_handle.handle); | |
a1a6ff11 | 761 | return ehca2ib_return_code(h_ret); |
fab97220 HS |
762 | } |
763 | /* successful deallocation */ | |
764 | ehca_mw_delete(e_mw); | |
765 | return 0; | |
766 | } /* end ehca_dealloc_mw() */ | |
767 | ||
768 | /*----------------------------------------------------------------------*/ | |
769 | ||
770 | struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, | |
771 | int mr_access_flags, | |
772 | struct ib_fmr_attr *fmr_attr) | |
773 | { | |
774 | struct ib_fmr *ib_fmr; | |
775 | struct ehca_shca *shca = | |
776 | container_of(pd->device, struct ehca_shca, ib_device); | |
777 | struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); | |
778 | struct ehca_mr *e_fmr; | |
779 | int ret; | |
780 | u32 tmp_lkey, tmp_rkey; | |
df17bfd4 | 781 | struct ehca_mr_pginfo pginfo; |
5bb7d929 | 782 | u64 hw_pgsize; |
fab97220 HS |
783 | |
784 | /* check other parameters */ | |
785 | if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && | |
786 | !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || | |
787 | ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && | |
788 | !(mr_access_flags & IB_ACCESS_LOCAL_WRITE))) { | |
789 | /* | |
790 | * Remote Write Access requires Local Write Access | |
791 | * Remote Atomic Access requires Local Write Access | |
792 | */ | |
793 | ehca_err(pd->device, "bad input values: mr_access_flags=%x", | |
794 | mr_access_flags); | |
795 | ib_fmr = ERR_PTR(-EINVAL); | |
796 | goto alloc_fmr_exit0; | |
797 | } | |
798 | if (mr_access_flags & IB_ACCESS_MW_BIND) { | |
799 | ehca_err(pd->device, "bad input values: mr_access_flags=%x", | |
800 | mr_access_flags); | |
801 | ib_fmr = ERR_PTR(-EINVAL); | |
802 | goto alloc_fmr_exit0; | |
803 | } | |
804 | if ((fmr_attr->max_pages == 0) || (fmr_attr->max_maps == 0)) { | |
805 | ehca_err(pd->device, "bad input values: fmr_attr->max_pages=%x " | |
806 | "fmr_attr->max_maps=%x fmr_attr->page_shift=%x", | |
807 | fmr_attr->max_pages, fmr_attr->max_maps, | |
808 | fmr_attr->page_shift); | |
809 | ib_fmr = ERR_PTR(-EINVAL); | |
810 | goto alloc_fmr_exit0; | |
811 | } | |
5bb7d929 HNN |
812 | hw_pgsize = ehca_get_max_hwpage_size(shca); |
813 | if ((1 << fmr_attr->page_shift) != hw_pgsize) { | |
fab97220 HS |
814 | ehca_err(pd->device, "unsupported fmr_attr->page_shift=%x", |
815 | fmr_attr->page_shift); | |
816 | ib_fmr = ERR_PTR(-EINVAL); | |
817 | goto alloc_fmr_exit0; | |
818 | } | |
819 | ||
820 | e_fmr = ehca_mr_new(); | |
821 | if (!e_fmr) { | |
822 | ib_fmr = ERR_PTR(-ENOMEM); | |
823 | goto alloc_fmr_exit0; | |
824 | } | |
825 | e_fmr->flags |= EHCA_MR_FLAG_FMR; | |
826 | ||
827 | /* register MR on HCA */ | |
df17bfd4 | 828 | memset(&pginfo, 0, sizeof(pginfo)); |
5bb7d929 HNN |
829 | /* |
830 | * pginfo.num_hwpages==0, ie register_rpages() will not be called | |
831 | * but deferred to map_phys_fmr() | |
832 | */ | |
fab97220 HS |
833 | ret = ehca_reg_mr(shca, e_fmr, NULL, |
834 | fmr_attr->max_pages * (1 << fmr_attr->page_shift), | |
835 | mr_access_flags, e_pd, &pginfo, | |
836 | &tmp_lkey, &tmp_rkey); | |
837 | if (ret) { | |
838 | ib_fmr = ERR_PTR(ret); | |
839 | goto alloc_fmr_exit1; | |
840 | } | |
841 | ||
842 | /* successful */ | |
5bb7d929 | 843 | e_fmr->hwpage_size = hw_pgsize; |
fab97220 HS |
844 | e_fmr->fmr_page_size = 1 << fmr_attr->page_shift; |
845 | e_fmr->fmr_max_pages = fmr_attr->max_pages; | |
846 | e_fmr->fmr_max_maps = fmr_attr->max_maps; | |
847 | e_fmr->fmr_map_cnt = 0; | |
848 | return &e_fmr->ib.ib_fmr; | |
849 | ||
850 | alloc_fmr_exit1: | |
851 | ehca_mr_delete(e_fmr); | |
852 | alloc_fmr_exit0: | |
fab97220 HS |
853 | return ib_fmr; |
854 | } /* end ehca_alloc_fmr() */ | |
855 | ||
856 | /*----------------------------------------------------------------------*/ | |
857 | ||
858 | int ehca_map_phys_fmr(struct ib_fmr *fmr, | |
859 | u64 *page_list, | |
860 | int list_len, | |
861 | u64 iova) | |
862 | { | |
863 | int ret; | |
864 | struct ehca_shca *shca = | |
865 | container_of(fmr->device, struct ehca_shca, ib_device); | |
866 | struct ehca_mr *e_fmr = container_of(fmr, struct ehca_mr, ib.ib_fmr); | |
867 | struct ehca_pd *e_pd = container_of(fmr->pd, struct ehca_pd, ib_pd); | |
df17bfd4 | 868 | struct ehca_mr_pginfo pginfo; |
fab97220 HS |
869 | u32 tmp_lkey, tmp_rkey; |
870 | ||
871 | if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { | |
872 | ehca_err(fmr->device, "not a FMR, e_fmr=%p e_fmr->flags=%x", | |
873 | e_fmr, e_fmr->flags); | |
874 | ret = -EINVAL; | |
875 | goto map_phys_fmr_exit0; | |
876 | } | |
877 | ret = ehca_fmr_check_page_list(e_fmr, page_list, list_len); | |
878 | if (ret) | |
879 | goto map_phys_fmr_exit0; | |
880 | if (iova % e_fmr->fmr_page_size) { | |
881 | /* only whole-numbered pages */ | |
882 | ehca_err(fmr->device, "bad iova, iova=%lx fmr_page_size=%x", | |
883 | iova, e_fmr->fmr_page_size); | |
884 | ret = -EINVAL; | |
885 | goto map_phys_fmr_exit0; | |
886 | } | |
887 | if (e_fmr->fmr_map_cnt >= e_fmr->fmr_max_maps) { | |
888 | /* HCAD does not limit the maps, however trace this anyway */ | |
889 | ehca_info(fmr->device, "map limit exceeded, fmr=%p " | |
890 | "e_fmr->fmr_map_cnt=%x e_fmr->fmr_max_maps=%x", | |
891 | fmr, e_fmr->fmr_map_cnt, e_fmr->fmr_max_maps); | |
892 | } | |
893 | ||
df17bfd4 HNN |
894 | memset(&pginfo, 0, sizeof(pginfo)); |
895 | pginfo.type = EHCA_MR_PGI_FMR; | |
896 | pginfo.num_kpages = list_len; | |
5bb7d929 HNN |
897 | pginfo.hwpage_size = e_fmr->hwpage_size; |
898 | pginfo.num_hwpages = | |
899 | list_len * e_fmr->fmr_page_size / pginfo.hwpage_size; | |
df17bfd4 | 900 | pginfo.u.fmr.page_list = page_list; |
5bb7d929 HNN |
901 | pginfo.next_hwpage = |
902 | (iova & (e_fmr->fmr_page_size-1)) / pginfo.hwpage_size; | |
187c72e3 | 903 | pginfo.u.fmr.fmr_pgsize = e_fmr->fmr_page_size; |
fab97220 | 904 | |
2b94397a | 905 | ret = ehca_rereg_mr(shca, e_fmr, (u64 *)iova, |
fab97220 HS |
906 | list_len * e_fmr->fmr_page_size, |
907 | e_fmr->acl, e_pd, &pginfo, &tmp_lkey, &tmp_rkey); | |
908 | if (ret) | |
909 | goto map_phys_fmr_exit0; | |
910 | ||
911 | /* successful reregistration */ | |
912 | e_fmr->fmr_map_cnt++; | |
913 | e_fmr->ib.ib_fmr.lkey = tmp_lkey; | |
914 | e_fmr->ib.ib_fmr.rkey = tmp_rkey; | |
915 | return 0; | |
916 | ||
917 | map_phys_fmr_exit0: | |
918 | if (ret) | |
e3722192 | 919 | ehca_err(fmr->device, "ret=%i fmr=%p page_list=%p list_len=%x " |
2b94397a | 920 | "iova=%lx", ret, fmr, page_list, list_len, iova); |
fab97220 HS |
921 | return ret; |
922 | } /* end ehca_map_phys_fmr() */ | |
923 | ||
924 | /*----------------------------------------------------------------------*/ | |
925 | ||
926 | int ehca_unmap_fmr(struct list_head *fmr_list) | |
927 | { | |
928 | int ret = 0; | |
929 | struct ib_fmr *ib_fmr; | |
930 | struct ehca_shca *shca = NULL; | |
931 | struct ehca_shca *prev_shca; | |
932 | struct ehca_mr *e_fmr; | |
933 | u32 num_fmr = 0; | |
934 | u32 unmap_fmr_cnt = 0; | |
935 | ||
936 | /* check all FMR belong to same SHCA, and check internal flag */ | |
937 | list_for_each_entry(ib_fmr, fmr_list, list) { | |
938 | prev_shca = shca; | |
939 | if (!ib_fmr) { | |
940 | ehca_gen_err("bad fmr=%p in list", ib_fmr); | |
941 | ret = -EINVAL; | |
942 | goto unmap_fmr_exit0; | |
943 | } | |
944 | shca = container_of(ib_fmr->device, struct ehca_shca, | |
945 | ib_device); | |
946 | e_fmr = container_of(ib_fmr, struct ehca_mr, ib.ib_fmr); | |
947 | if ((shca != prev_shca) && prev_shca) { | |
948 | ehca_err(&shca->ib_device, "SHCA mismatch, shca=%p " | |
949 | "prev_shca=%p e_fmr=%p", | |
950 | shca, prev_shca, e_fmr); | |
951 | ret = -EINVAL; | |
952 | goto unmap_fmr_exit0; | |
953 | } | |
954 | if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { | |
955 | ehca_err(&shca->ib_device, "not a FMR, e_fmr=%p " | |
956 | "e_fmr->flags=%x", e_fmr, e_fmr->flags); | |
957 | ret = -EINVAL; | |
958 | goto unmap_fmr_exit0; | |
959 | } | |
960 | num_fmr++; | |
961 | } | |
962 | ||
963 | /* loop over all FMRs to unmap */ | |
964 | list_for_each_entry(ib_fmr, fmr_list, list) { | |
965 | unmap_fmr_cnt++; | |
966 | e_fmr = container_of(ib_fmr, struct ehca_mr, ib.ib_fmr); | |
967 | shca = container_of(ib_fmr->device, struct ehca_shca, | |
968 | ib_device); | |
969 | ret = ehca_unmap_one_fmr(shca, e_fmr); | |
970 | if (ret) { | |
971 | /* unmap failed, stop unmapping of rest of FMRs */ | |
972 | ehca_err(&shca->ib_device, "unmap of one FMR failed, " | |
973 | "stop rest, e_fmr=%p num_fmr=%x " | |
974 | "unmap_fmr_cnt=%x lkey=%x", e_fmr, num_fmr, | |
975 | unmap_fmr_cnt, e_fmr->ib.ib_fmr.lkey); | |
976 | goto unmap_fmr_exit0; | |
977 | } | |
978 | } | |
979 | ||
980 | unmap_fmr_exit0: | |
981 | if (ret) | |
e3722192 | 982 | ehca_gen_err("ret=%i fmr_list=%p num_fmr=%x unmap_fmr_cnt=%x", |
fab97220 HS |
983 | ret, fmr_list, num_fmr, unmap_fmr_cnt); |
984 | return ret; | |
985 | } /* end ehca_unmap_fmr() */ | |
986 | ||
987 | /*----------------------------------------------------------------------*/ | |
988 | ||
989 | int ehca_dealloc_fmr(struct ib_fmr *fmr) | |
990 | { | |
991 | int ret; | |
992 | u64 h_ret; | |
993 | struct ehca_shca *shca = | |
994 | container_of(fmr->device, struct ehca_shca, ib_device); | |
995 | struct ehca_mr *e_fmr = container_of(fmr, struct ehca_mr, ib.ib_fmr); | |
996 | ||
997 | if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { | |
998 | ehca_err(fmr->device, "not a FMR, e_fmr=%p e_fmr->flags=%x", | |
999 | e_fmr, e_fmr->flags); | |
1000 | ret = -EINVAL; | |
1001 | goto free_fmr_exit0; | |
1002 | } | |
1003 | ||
1004 | h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); | |
1005 | if (h_ret != H_SUCCESS) { | |
e3722192 | 1006 | ehca_err(fmr->device, "hipz_free_mr failed, h_ret=%li e_fmr=%p " |
fab97220 HS |
1007 | "hca_hndl=%lx fmr_hndl=%lx fmr->lkey=%x", |
1008 | h_ret, e_fmr, shca->ipz_hca_handle.handle, | |
1009 | e_fmr->ipz_mr_handle.handle, fmr->lkey); | |
a1a6ff11 | 1010 | ret = ehca2ib_return_code(h_ret); |
fab97220 HS |
1011 | goto free_fmr_exit0; |
1012 | } | |
1013 | /* successful deregistration */ | |
1014 | ehca_mr_delete(e_fmr); | |
1015 | return 0; | |
1016 | ||
1017 | free_fmr_exit0: | |
1018 | if (ret) | |
e3722192 | 1019 | ehca_err(&shca->ib_device, "ret=%i fmr=%p", ret, fmr); |
fab97220 HS |
1020 | return ret; |
1021 | } /* end ehca_dealloc_fmr() */ | |
1022 | ||
1023 | /*----------------------------------------------------------------------*/ | |
1024 | ||
1025 | int ehca_reg_mr(struct ehca_shca *shca, | |
1026 | struct ehca_mr *e_mr, | |
1027 | u64 *iova_start, | |
1028 | u64 size, | |
1029 | int acl, | |
1030 | struct ehca_pd *e_pd, | |
1031 | struct ehca_mr_pginfo *pginfo, | |
1032 | u32 *lkey, /*OUT*/ | |
1033 | u32 *rkey) /*OUT*/ | |
1034 | { | |
1035 | int ret; | |
1036 | u64 h_ret; | |
1037 | u32 hipz_acl; | |
2b94397a | 1038 | struct ehca_mr_hipzout_parms hipzout; |
fab97220 HS |
1039 | |
1040 | ehca_mrmw_map_acl(acl, &hipz_acl); | |
5bb7d929 | 1041 | ehca_mrmw_set_pgsize_hipz_acl(pginfo->hwpage_size, &hipz_acl); |
fab97220 | 1042 | if (ehca_use_hp_mr == 1) |
2b94397a | 1043 | hipz_acl |= 0x00000001; |
fab97220 HS |
1044 | |
1045 | h_ret = hipz_h_alloc_resource_mr(shca->ipz_hca_handle, e_mr, | |
1046 | (u64)iova_start, size, hipz_acl, | |
1047 | e_pd->fw_pd, &hipzout); | |
1048 | if (h_ret != H_SUCCESS) { | |
e3722192 | 1049 | ehca_err(&shca->ib_device, "hipz_alloc_mr failed, h_ret=%li " |
fab97220 | 1050 | "hca_hndl=%lx", h_ret, shca->ipz_hca_handle.handle); |
a1a6ff11 | 1051 | ret = ehca2ib_return_code(h_ret); |
fab97220 HS |
1052 | goto ehca_reg_mr_exit0; |
1053 | } | |
1054 | ||
1055 | e_mr->ipz_mr_handle = hipzout.handle; | |
1056 | ||
1057 | ret = ehca_reg_mr_rpages(shca, e_mr, pginfo); | |
1058 | if (ret) | |
1059 | goto ehca_reg_mr_exit1; | |
1060 | ||
1061 | /* successful registration */ | |
df17bfd4 HNN |
1062 | e_mr->num_kpages = pginfo->num_kpages; |
1063 | e_mr->num_hwpages = pginfo->num_hwpages; | |
5bb7d929 | 1064 | e_mr->hwpage_size = pginfo->hwpage_size; |
df17bfd4 HNN |
1065 | e_mr->start = iova_start; |
1066 | e_mr->size = size; | |
1067 | e_mr->acl = acl; | |
fab97220 HS |
1068 | *lkey = hipzout.lkey; |
1069 | *rkey = hipzout.rkey; | |
1070 | return 0; | |
1071 | ||
1072 | ehca_reg_mr_exit1: | |
1073 | h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); | |
1074 | if (h_ret != H_SUCCESS) { | |
e3722192 | 1075 | ehca_err(&shca->ib_device, "h_ret=%li shca=%p e_mr=%p " |
fab97220 | 1076 | "iova_start=%p size=%lx acl=%x e_pd=%p lkey=%x " |
e3722192 | 1077 | "pginfo=%p num_kpages=%lx num_hwpages=%lx ret=%i", |
fab97220 | 1078 | h_ret, shca, e_mr, iova_start, size, acl, e_pd, |
df17bfd4 HNN |
1079 | hipzout.lkey, pginfo, pginfo->num_kpages, |
1080 | pginfo->num_hwpages, ret); | |
fab97220 HS |
1081 | ehca_err(&shca->ib_device, "internal error in ehca_reg_mr, " |
1082 | "not recoverable"); | |
1083 | } | |
1084 | ehca_reg_mr_exit0: | |
1085 | if (ret) | |
e3722192 | 1086 | ehca_err(&shca->ib_device, "ret=%i shca=%p e_mr=%p " |
fab97220 | 1087 | "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " |
df17bfd4 | 1088 | "num_kpages=%lx num_hwpages=%lx", |
fab97220 | 1089 | ret, shca, e_mr, iova_start, size, acl, e_pd, pginfo, |
df17bfd4 | 1090 | pginfo->num_kpages, pginfo->num_hwpages); |
fab97220 HS |
1091 | return ret; |
1092 | } /* end ehca_reg_mr() */ | |
1093 | ||
1094 | /*----------------------------------------------------------------------*/ | |
1095 | ||
1096 | int ehca_reg_mr_rpages(struct ehca_shca *shca, | |
1097 | struct ehca_mr *e_mr, | |
1098 | struct ehca_mr_pginfo *pginfo) | |
1099 | { | |
1100 | int ret = 0; | |
1101 | u64 h_ret; | |
1102 | u32 rnum; | |
1103 | u64 rpage; | |
1104 | u32 i; | |
1105 | u64 *kpage; | |
1106 | ||
5bb7d929 HNN |
1107 | if (!pginfo->num_hwpages) /* in case of fmr */ |
1108 | return 0; | |
1109 | ||
f2d91361 | 1110 | kpage = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
fab97220 HS |
1111 | if (!kpage) { |
1112 | ehca_err(&shca->ib_device, "kpage alloc failed"); | |
1113 | ret = -ENOMEM; | |
1114 | goto ehca_reg_mr_rpages_exit0; | |
1115 | } | |
1116 | ||
5bb7d929 | 1117 | /* max MAX_RPAGES ehca mr pages per register call */ |
df17bfd4 | 1118 | for (i = 0; i < NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES); i++) { |
fab97220 | 1119 | |
df17bfd4 HNN |
1120 | if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { |
1121 | rnum = pginfo->num_hwpages % MAX_RPAGES; /* last shot */ | |
fab97220 | 1122 | if (rnum == 0) |
4e4e74ca | 1123 | rnum = MAX_RPAGES; /* last shot is full */ |
fab97220 | 1124 | } else |
4e4e74ca | 1125 | rnum = MAX_RPAGES; |
fab97220 | 1126 | |
187c72e3 HNN |
1127 | ret = ehca_set_pagebuf(pginfo, rnum, kpage); |
1128 | if (ret) { | |
1129 | ehca_err(&shca->ib_device, "ehca_set_pagebuf " | |
e3722192 | 1130 | "bad rc, ret=%i rnum=%x kpage=%p", |
5bb7d929 | 1131 | ret, rnum, kpage); |
187c72e3 HNN |
1132 | goto ehca_reg_mr_rpages_exit1; |
1133 | } | |
1134 | ||
1135 | if (rnum > 1) { | |
fab97220 HS |
1136 | rpage = virt_to_abs(kpage); |
1137 | if (!rpage) { | |
1138 | ehca_err(&shca->ib_device, "kpage=%p i=%x", | |
1139 | kpage, i); | |
1140 | ret = -EFAULT; | |
1141 | goto ehca_reg_mr_rpages_exit1; | |
1142 | } | |
187c72e3 HNN |
1143 | } else |
1144 | rpage = *kpage; | |
fab97220 | 1145 | |
5bb7d929 HNN |
1146 | h_ret = hipz_h_register_rpage_mr( |
1147 | shca->ipz_hca_handle, e_mr, | |
1148 | ehca_encode_hwpage_size(pginfo->hwpage_size), | |
1149 | 0, rpage, rnum); | |
fab97220 | 1150 | |
df17bfd4 | 1151 | if (i == NUM_CHUNKS(pginfo->num_hwpages, MAX_RPAGES) - 1) { |
fab97220 HS |
1152 | /* |
1153 | * check for 'registration complete'==H_SUCCESS | |
1154 | * and for 'page registered'==H_PAGE_REGISTERED | |
1155 | */ | |
1156 | if (h_ret != H_SUCCESS) { | |
1157 | ehca_err(&shca->ib_device, "last " | |
e3722192 | 1158 | "hipz_reg_rpage_mr failed, h_ret=%li " |
fab97220 HS |
1159 | "e_mr=%p i=%x hca_hndl=%lx mr_hndl=%lx" |
1160 | " lkey=%x", h_ret, e_mr, i, | |
1161 | shca->ipz_hca_handle.handle, | |
1162 | e_mr->ipz_mr_handle.handle, | |
1163 | e_mr->ib.ib_mr.lkey); | |
a1a6ff11 | 1164 | ret = ehca2ib_return_code(h_ret); |
fab97220 HS |
1165 | break; |
1166 | } else | |
1167 | ret = 0; | |
1168 | } else if (h_ret != H_PAGE_REGISTERED) { | |
1169 | ehca_err(&shca->ib_device, "hipz_reg_rpage_mr failed, " | |
e3722192 | 1170 | "h_ret=%li e_mr=%p i=%x lkey=%x hca_hndl=%lx " |
fab97220 HS |
1171 | "mr_hndl=%lx", h_ret, e_mr, i, |
1172 | e_mr->ib.ib_mr.lkey, | |
1173 | shca->ipz_hca_handle.handle, | |
1174 | e_mr->ipz_mr_handle.handle); | |
a1a6ff11 | 1175 | ret = ehca2ib_return_code(h_ret); |
fab97220 HS |
1176 | break; |
1177 | } else | |
1178 | ret = 0; | |
1179 | } /* end for(i) */ | |
1180 | ||
1181 | ||
1182 | ehca_reg_mr_rpages_exit1: | |
7e28db5d | 1183 | ehca_free_fw_ctrlblock(kpage); |
fab97220 HS |
1184 | ehca_reg_mr_rpages_exit0: |
1185 | if (ret) | |
e3722192 | 1186 | ehca_err(&shca->ib_device, "ret=%i shca=%p e_mr=%p pginfo=%p " |
df17bfd4 HNN |
1187 | "num_kpages=%lx num_hwpages=%lx", ret, shca, e_mr, |
1188 | pginfo, pginfo->num_kpages, pginfo->num_hwpages); | |
fab97220 HS |
1189 | return ret; |
1190 | } /* end ehca_reg_mr_rpages() */ | |
1191 | ||
1192 | /*----------------------------------------------------------------------*/ | |
1193 | ||
1194 | inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, | |
1195 | struct ehca_mr *e_mr, | |
1196 | u64 *iova_start, | |
1197 | u64 size, | |
1198 | u32 acl, | |
1199 | struct ehca_pd *e_pd, | |
1200 | struct ehca_mr_pginfo *pginfo, | |
1201 | u32 *lkey, /*OUT*/ | |
1202 | u32 *rkey) /*OUT*/ | |
1203 | { | |
1204 | int ret; | |
1205 | u64 h_ret; | |
1206 | u32 hipz_acl; | |
1207 | u64 *kpage; | |
1208 | u64 rpage; | |
1209 | struct ehca_mr_pginfo pginfo_save; | |
2b94397a | 1210 | struct ehca_mr_hipzout_parms hipzout; |
fab97220 HS |
1211 | |
1212 | ehca_mrmw_map_acl(acl, &hipz_acl); | |
5bb7d929 | 1213 | ehca_mrmw_set_pgsize_hipz_acl(pginfo->hwpage_size, &hipz_acl); |
fab97220 | 1214 | |
f2d91361 | 1215 | kpage = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
fab97220 HS |
1216 | if (!kpage) { |
1217 | ehca_err(&shca->ib_device, "kpage alloc failed"); | |
1218 | ret = -ENOMEM; | |
1219 | goto ehca_rereg_mr_rereg1_exit0; | |
1220 | } | |
1221 | ||
1222 | pginfo_save = *pginfo; | |
187c72e3 | 1223 | ret = ehca_set_pagebuf(pginfo, pginfo->num_hwpages, kpage); |
fab97220 HS |
1224 | if (ret) { |
1225 | ehca_err(&shca->ib_device, "set pagebuf failed, e_mr=%p " | |
df17bfd4 HNN |
1226 | "pginfo=%p type=%x num_kpages=%lx num_hwpages=%lx " |
1227 | "kpage=%p", e_mr, pginfo, pginfo->type, | |
1228 | pginfo->num_kpages, pginfo->num_hwpages, kpage); | |
fab97220 HS |
1229 | goto ehca_rereg_mr_rereg1_exit1; |
1230 | } | |
1231 | rpage = virt_to_abs(kpage); | |
1232 | if (!rpage) { | |
1233 | ehca_err(&shca->ib_device, "kpage=%p", kpage); | |
1234 | ret = -EFAULT; | |
1235 | goto ehca_rereg_mr_rereg1_exit1; | |
1236 | } | |
1237 | h_ret = hipz_h_reregister_pmr(shca->ipz_hca_handle, e_mr, | |
1238 | (u64)iova_start, size, hipz_acl, | |
1239 | e_pd->fw_pd, rpage, &hipzout); | |
1240 | if (h_ret != H_SUCCESS) { | |
1241 | /* | |
1242 | * reregistration unsuccessful, try it again with the 3 hCalls, | |
1243 | * e.g. this is required in case H_MR_CONDITION | |
1244 | * (MW bound or MR is shared) | |
1245 | */ | |
1246 | ehca_warn(&shca->ib_device, "hipz_h_reregister_pmr failed " | |
e3722192 | 1247 | "(Rereg1), h_ret=%li e_mr=%p", h_ret, e_mr); |
fab97220 HS |
1248 | *pginfo = pginfo_save; |
1249 | ret = -EAGAIN; | |
2b94397a | 1250 | } else if ((u64 *)hipzout.vaddr != iova_start) { |
fab97220 HS |
1251 | ehca_err(&shca->ib_device, "PHYP changed iova_start in " |
1252 | "rereg_pmr, iova_start=%p iova_start_out=%lx e_mr=%p " | |
1253 | "mr_handle=%lx lkey=%x lkey_out=%x", iova_start, | |
1254 | hipzout.vaddr, e_mr, e_mr->ipz_mr_handle.handle, | |
1255 | e_mr->ib.ib_mr.lkey, hipzout.lkey); | |
1256 | ret = -EFAULT; | |
1257 | } else { | |
1258 | /* | |
1259 | * successful reregistration | |
1260 | * note: start and start_out are identical for eServer HCAs | |
1261 | */ | |
df17bfd4 HNN |
1262 | e_mr->num_kpages = pginfo->num_kpages; |
1263 | e_mr->num_hwpages = pginfo->num_hwpages; | |
5bb7d929 | 1264 | e_mr->hwpage_size = pginfo->hwpage_size; |
df17bfd4 HNN |
1265 | e_mr->start = iova_start; |
1266 | e_mr->size = size; | |
1267 | e_mr->acl = acl; | |
fab97220 HS |
1268 | *lkey = hipzout.lkey; |
1269 | *rkey = hipzout.rkey; | |
1270 | } | |
1271 | ||
1272 | ehca_rereg_mr_rereg1_exit1: | |
7e28db5d | 1273 | ehca_free_fw_ctrlblock(kpage); |
fab97220 HS |
1274 | ehca_rereg_mr_rereg1_exit0: |
1275 | if ( ret && (ret != -EAGAIN) ) | |
e3722192 | 1276 | ehca_err(&shca->ib_device, "ret=%i lkey=%x rkey=%x " |
df17bfd4 HNN |
1277 | "pginfo=%p num_kpages=%lx num_hwpages=%lx", |
1278 | ret, *lkey, *rkey, pginfo, pginfo->num_kpages, | |
1279 | pginfo->num_hwpages); | |
fab97220 HS |
1280 | return ret; |
1281 | } /* end ehca_rereg_mr_rereg1() */ | |
1282 | ||
1283 | /*----------------------------------------------------------------------*/ | |
1284 | ||
1285 | int ehca_rereg_mr(struct ehca_shca *shca, | |
1286 | struct ehca_mr *e_mr, | |
1287 | u64 *iova_start, | |
1288 | u64 size, | |
1289 | int acl, | |
1290 | struct ehca_pd *e_pd, | |
1291 | struct ehca_mr_pginfo *pginfo, | |
1292 | u32 *lkey, | |
1293 | u32 *rkey) | |
1294 | { | |
1295 | int ret = 0; | |
1296 | u64 h_ret; | |
1297 | int rereg_1_hcall = 1; /* 1: use hipz_h_reregister_pmr directly */ | |
1298 | int rereg_3_hcall = 0; /* 1: use 3 hipz calls for reregistration */ | |
1299 | ||
1300 | /* first determine reregistration hCall(s) */ | |
df17bfd4 HNN |
1301 | if ((pginfo->num_hwpages > MAX_RPAGES) || |
1302 | (e_mr->num_hwpages > MAX_RPAGES) || | |
1303 | (pginfo->num_hwpages > e_mr->num_hwpages)) { | |
1304 | ehca_dbg(&shca->ib_device, "Rereg3 case, " | |
1305 | "pginfo->num_hwpages=%lx e_mr->num_hwpages=%x", | |
1306 | pginfo->num_hwpages, e_mr->num_hwpages); | |
fab97220 HS |
1307 | rereg_1_hcall = 0; |
1308 | rereg_3_hcall = 1; | |
1309 | } | |
1310 | ||
1311 | if (e_mr->flags & EHCA_MR_FLAG_MAXMR) { /* check for max-MR */ | |
1312 | rereg_1_hcall = 0; | |
1313 | rereg_3_hcall = 1; | |
1314 | e_mr->flags &= ~EHCA_MR_FLAG_MAXMR; | |
1315 | ehca_err(&shca->ib_device, "Rereg MR for max-MR! e_mr=%p", | |
1316 | e_mr); | |
1317 | } | |
1318 | ||
1319 | if (rereg_1_hcall) { | |
1320 | ret = ehca_rereg_mr_rereg1(shca, e_mr, iova_start, size, | |
1321 | acl, e_pd, pginfo, lkey, rkey); | |
1322 | if (ret) { | |
1323 | if (ret == -EAGAIN) | |
1324 | rereg_3_hcall = 1; | |
1325 | else | |
1326 | goto ehca_rereg_mr_exit0; | |
1327 | } | |
1328 | } | |
1329 | ||
1330 | if (rereg_3_hcall) { | |
1331 | struct ehca_mr save_mr; | |
1332 | ||
1333 | /* first deregister old MR */ | |
1334 | h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); | |
1335 | if (h_ret != H_SUCCESS) { | |
1336 | ehca_err(&shca->ib_device, "hipz_free_mr failed, " | |
e3722192 | 1337 | "h_ret=%li e_mr=%p hca_hndl=%lx mr_hndl=%lx " |
fab97220 HS |
1338 | "mr->lkey=%x", |
1339 | h_ret, e_mr, shca->ipz_hca_handle.handle, | |
1340 | e_mr->ipz_mr_handle.handle, | |
1341 | e_mr->ib.ib_mr.lkey); | |
a1a6ff11 | 1342 | ret = ehca2ib_return_code(h_ret); |
fab97220 HS |
1343 | goto ehca_rereg_mr_exit0; |
1344 | } | |
1345 | /* clean ehca_mr_t, without changing struct ib_mr and lock */ | |
1346 | save_mr = *e_mr; | |
1347 | ehca_mr_deletenew(e_mr); | |
1348 | ||
1349 | /* set some MR values */ | |
1350 | e_mr->flags = save_mr.flags; | |
5bb7d929 | 1351 | e_mr->hwpage_size = save_mr.hwpage_size; |
fab97220 HS |
1352 | e_mr->fmr_page_size = save_mr.fmr_page_size; |
1353 | e_mr->fmr_max_pages = save_mr.fmr_max_pages; | |
1354 | e_mr->fmr_max_maps = save_mr.fmr_max_maps; | |
1355 | e_mr->fmr_map_cnt = save_mr.fmr_map_cnt; | |
1356 | ||
1357 | ret = ehca_reg_mr(shca, e_mr, iova_start, size, acl, | |
5bb7d929 | 1358 | e_pd, pginfo, lkey, rkey); |
fab97220 HS |
1359 | if (ret) { |
1360 | u32 offset = (u64)(&e_mr->flags) - (u64)e_mr; | |
1361 | memcpy(&e_mr->flags, &(save_mr.flags), | |
1362 | sizeof(struct ehca_mr) - offset); | |
1363 | goto ehca_rereg_mr_exit0; | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | ehca_rereg_mr_exit0: | |
1368 | if (ret) | |
e3722192 | 1369 | ehca_err(&shca->ib_device, "ret=%i shca=%p e_mr=%p " |
fab97220 | 1370 | "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " |
df17bfd4 | 1371 | "num_kpages=%lx lkey=%x rkey=%x rereg_1_hcall=%x " |
fab97220 | 1372 | "rereg_3_hcall=%x", ret, shca, e_mr, iova_start, size, |
df17bfd4 | 1373 | acl, e_pd, pginfo, pginfo->num_kpages, *lkey, *rkey, |
fab97220 HS |
1374 | rereg_1_hcall, rereg_3_hcall); |
1375 | return ret; | |
1376 | } /* end ehca_rereg_mr() */ | |
1377 | ||
1378 | /*----------------------------------------------------------------------*/ | |
1379 | ||
1380 | int ehca_unmap_one_fmr(struct ehca_shca *shca, | |
1381 | struct ehca_mr *e_fmr) | |
1382 | { | |
1383 | int ret = 0; | |
1384 | u64 h_ret; | |
fab97220 HS |
1385 | struct ehca_pd *e_pd = |
1386 | container_of(e_fmr->ib.ib_fmr.pd, struct ehca_pd, ib_pd); | |
1387 | struct ehca_mr save_fmr; | |
1388 | u32 tmp_lkey, tmp_rkey; | |
df17bfd4 | 1389 | struct ehca_mr_pginfo pginfo; |
2b94397a | 1390 | struct ehca_mr_hipzout_parms hipzout; |
187c72e3 | 1391 | struct ehca_mr save_mr; |
fab97220 | 1392 | |
187c72e3 | 1393 | if (e_fmr->fmr_max_pages <= MAX_RPAGES) { |
fab97220 HS |
1394 | /* |
1395 | * note: after using rereg hcall with len=0, | |
1396 | * rereg hcall must be used again for registering pages | |
1397 | */ | |
1398 | h_ret = hipz_h_reregister_pmr(shca->ipz_hca_handle, e_fmr, 0, | |
1399 | 0, 0, e_pd->fw_pd, 0, &hipzout); | |
187c72e3 | 1400 | if (h_ret == H_SUCCESS) { |
fab97220 HS |
1401 | /* successful reregistration */ |
1402 | e_fmr->start = NULL; | |
1403 | e_fmr->size = 0; | |
1404 | tmp_lkey = hipzout.lkey; | |
1405 | tmp_rkey = hipzout.rkey; | |
187c72e3 | 1406 | return 0; |
fab97220 | 1407 | } |
187c72e3 HNN |
1408 | /* |
1409 | * should not happen, because length checked above, | |
1410 | * FMRs are not shared and no MW bound to FMRs | |
1411 | */ | |
1412 | ehca_err(&shca->ib_device, "hipz_reregister_pmr failed " | |
e3722192 | 1413 | "(Rereg1), h_ret=%li e_fmr=%p hca_hndl=%lx " |
187c72e3 HNN |
1414 | "mr_hndl=%lx lkey=%x lkey_out=%x", |
1415 | h_ret, e_fmr, shca->ipz_hca_handle.handle, | |
1416 | e_fmr->ipz_mr_handle.handle, | |
1417 | e_fmr->ib.ib_fmr.lkey, hipzout.lkey); | |
1418 | /* try free and rereg */ | |
fab97220 HS |
1419 | } |
1420 | ||
187c72e3 HNN |
1421 | /* first free old FMR */ |
1422 | h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); | |
1423 | if (h_ret != H_SUCCESS) { | |
1424 | ehca_err(&shca->ib_device, "hipz_free_mr failed, " | |
e3722192 | 1425 | "h_ret=%li e_fmr=%p hca_hndl=%lx mr_hndl=%lx " |
187c72e3 HNN |
1426 | "lkey=%x", |
1427 | h_ret, e_fmr, shca->ipz_hca_handle.handle, | |
1428 | e_fmr->ipz_mr_handle.handle, | |
1429 | e_fmr->ib.ib_fmr.lkey); | |
1430 | ret = ehca2ib_return_code(h_ret); | |
1431 | goto ehca_unmap_one_fmr_exit0; | |
1432 | } | |
1433 | /* clean ehca_mr_t, without changing lock */ | |
1434 | save_fmr = *e_fmr; | |
1435 | ehca_mr_deletenew(e_fmr); | |
fab97220 | 1436 | |
187c72e3 HNN |
1437 | /* set some MR values */ |
1438 | e_fmr->flags = save_fmr.flags; | |
5bb7d929 | 1439 | e_fmr->hwpage_size = save_fmr.hwpage_size; |
187c72e3 HNN |
1440 | e_fmr->fmr_page_size = save_fmr.fmr_page_size; |
1441 | e_fmr->fmr_max_pages = save_fmr.fmr_max_pages; | |
1442 | e_fmr->fmr_max_maps = save_fmr.fmr_max_maps; | |
1443 | e_fmr->fmr_map_cnt = save_fmr.fmr_map_cnt; | |
1444 | e_fmr->acl = save_fmr.acl; | |
fab97220 | 1445 | |
187c72e3 HNN |
1446 | memset(&pginfo, 0, sizeof(pginfo)); |
1447 | pginfo.type = EHCA_MR_PGI_FMR; | |
187c72e3 HNN |
1448 | ret = ehca_reg_mr(shca, e_fmr, NULL, |
1449 | (e_fmr->fmr_max_pages * e_fmr->fmr_page_size), | |
1450 | e_fmr->acl, e_pd, &pginfo, &tmp_lkey, | |
1451 | &tmp_rkey); | |
1452 | if (ret) { | |
1453 | u32 offset = (u64)(&e_fmr->flags) - (u64)e_fmr; | |
1454 | memcpy(&e_fmr->flags, &(save_mr.flags), | |
1455 | sizeof(struct ehca_mr) - offset); | |
fab97220 HS |
1456 | } |
1457 | ||
1458 | ehca_unmap_one_fmr_exit0: | |
1459 | if (ret) | |
e3722192 | 1460 | ehca_err(&shca->ib_device, "ret=%i tmp_lkey=%x tmp_rkey=%x " |
187c72e3 HNN |
1461 | "fmr_max_pages=%x", |
1462 | ret, tmp_lkey, tmp_rkey, e_fmr->fmr_max_pages); | |
fab97220 HS |
1463 | return ret; |
1464 | } /* end ehca_unmap_one_fmr() */ | |
1465 | ||
1466 | /*----------------------------------------------------------------------*/ | |
1467 | ||
1468 | int ehca_reg_smr(struct ehca_shca *shca, | |
1469 | struct ehca_mr *e_origmr, | |
1470 | struct ehca_mr *e_newmr, | |
1471 | u64 *iova_start, | |
1472 | int acl, | |
1473 | struct ehca_pd *e_pd, | |
1474 | u32 *lkey, /*OUT*/ | |
1475 | u32 *rkey) /*OUT*/ | |
1476 | { | |
1477 | int ret = 0; | |
1478 | u64 h_ret; | |
1479 | u32 hipz_acl; | |
2b94397a | 1480 | struct ehca_mr_hipzout_parms hipzout; |
fab97220 HS |
1481 | |
1482 | ehca_mrmw_map_acl(acl, &hipz_acl); | |
5bb7d929 | 1483 | ehca_mrmw_set_pgsize_hipz_acl(e_origmr->hwpage_size, &hipz_acl); |
fab97220 HS |
1484 | |
1485 | h_ret = hipz_h_register_smr(shca->ipz_hca_handle, e_newmr, e_origmr, | |
1486 | (u64)iova_start, hipz_acl, e_pd->fw_pd, | |
1487 | &hipzout); | |
1488 | if (h_ret != H_SUCCESS) { | |
e3722192 | 1489 | ehca_err(&shca->ib_device, "hipz_reg_smr failed, h_ret=%li " |
fab97220 HS |
1490 | "shca=%p e_origmr=%p e_newmr=%p iova_start=%p acl=%x " |
1491 | "e_pd=%p hca_hndl=%lx mr_hndl=%lx lkey=%x", | |
1492 | h_ret, shca, e_origmr, e_newmr, iova_start, acl, e_pd, | |
1493 | shca->ipz_hca_handle.handle, | |
1494 | e_origmr->ipz_mr_handle.handle, | |
1495 | e_origmr->ib.ib_mr.lkey); | |
a1a6ff11 | 1496 | ret = ehca2ib_return_code(h_ret); |
fab97220 HS |
1497 | goto ehca_reg_smr_exit0; |
1498 | } | |
1499 | /* successful registration */ | |
df17bfd4 HNN |
1500 | e_newmr->num_kpages = e_origmr->num_kpages; |
1501 | e_newmr->num_hwpages = e_origmr->num_hwpages; | |
5bb7d929 | 1502 | e_newmr->hwpage_size = e_origmr->hwpage_size; |
df17bfd4 HNN |
1503 | e_newmr->start = iova_start; |
1504 | e_newmr->size = e_origmr->size; | |
1505 | e_newmr->acl = acl; | |
fab97220 HS |
1506 | e_newmr->ipz_mr_handle = hipzout.handle; |
1507 | *lkey = hipzout.lkey; | |
1508 | *rkey = hipzout.rkey; | |
1509 | return 0; | |
1510 | ||
1511 | ehca_reg_smr_exit0: | |
1512 | if (ret) | |
e3722192 | 1513 | ehca_err(&shca->ib_device, "ret=%i shca=%p e_origmr=%p " |
fab97220 HS |
1514 | "e_newmr=%p iova_start=%p acl=%x e_pd=%p", |
1515 | ret, shca, e_origmr, e_newmr, iova_start, acl, e_pd); | |
1516 | return ret; | |
1517 | } /* end ehca_reg_smr() */ | |
1518 | ||
1519 | /*----------------------------------------------------------------------*/ | |
1520 | ||
1521 | /* register internal max-MR to internal SHCA */ | |
1522 | int ehca_reg_internal_maxmr( | |
1523 | struct ehca_shca *shca, | |
1524 | struct ehca_pd *e_pd, | |
1525 | struct ehca_mr **e_maxmr) /*OUT*/ | |
1526 | { | |
1527 | int ret; | |
1528 | struct ehca_mr *e_mr; | |
1529 | u64 *iova_start; | |
1530 | u64 size_maxmr; | |
df17bfd4 | 1531 | struct ehca_mr_pginfo pginfo; |
fab97220 | 1532 | struct ib_phys_buf ib_pbuf; |
df17bfd4 HNN |
1533 | u32 num_kpages; |
1534 | u32 num_hwpages; | |
5bb7d929 | 1535 | u64 hw_pgsize; |
fab97220 HS |
1536 | |
1537 | e_mr = ehca_mr_new(); | |
1538 | if (!e_mr) { | |
1539 | ehca_err(&shca->ib_device, "out of memory"); | |
1540 | ret = -ENOMEM; | |
1541 | goto ehca_reg_internal_maxmr_exit0; | |
1542 | } | |
1543 | e_mr->flags |= EHCA_MR_FLAG_MAXMR; | |
1544 | ||
1545 | /* register internal max-MR on HCA */ | |
1546 | size_maxmr = (u64)high_memory - PAGE_OFFSET; | |
2b94397a | 1547 | iova_start = (u64 *)KERNELBASE; |
fab97220 HS |
1548 | ib_pbuf.addr = 0; |
1549 | ib_pbuf.size = size_maxmr; | |
df17bfd4 HNN |
1550 | num_kpages = NUM_CHUNKS(((u64)iova_start % PAGE_SIZE) + size_maxmr, |
1551 | PAGE_SIZE); | |
5bb7d929 HNN |
1552 | hw_pgsize = ehca_get_max_hwpage_size(shca); |
1553 | num_hwpages = NUM_CHUNKS(((u64)iova_start % hw_pgsize) + size_maxmr, | |
1554 | hw_pgsize); | |
df17bfd4 HNN |
1555 | |
1556 | memset(&pginfo, 0, sizeof(pginfo)); | |
1557 | pginfo.type = EHCA_MR_PGI_PHYS; | |
1558 | pginfo.num_kpages = num_kpages; | |
1559 | pginfo.num_hwpages = num_hwpages; | |
5bb7d929 | 1560 | pginfo.hwpage_size = hw_pgsize; |
df17bfd4 HNN |
1561 | pginfo.u.phy.num_phys_buf = 1; |
1562 | pginfo.u.phy.phys_buf_array = &ib_pbuf; | |
fab97220 HS |
1563 | |
1564 | ret = ehca_reg_mr(shca, e_mr, iova_start, size_maxmr, 0, e_pd, | |
1565 | &pginfo, &e_mr->ib.ib_mr.lkey, | |
1566 | &e_mr->ib.ib_mr.rkey); | |
1567 | if (ret) { | |
1568 | ehca_err(&shca->ib_device, "reg of internal max MR failed, " | |
df17bfd4 HNN |
1569 | "e_mr=%p iova_start=%p size_maxmr=%lx num_kpages=%x " |
1570 | "num_hwpages=%x", e_mr, iova_start, size_maxmr, | |
1571 | num_kpages, num_hwpages); | |
fab97220 HS |
1572 | goto ehca_reg_internal_maxmr_exit1; |
1573 | } | |
1574 | ||
1575 | /* successful registration of all pages */ | |
1576 | e_mr->ib.ib_mr.device = e_pd->ib_pd.device; | |
1577 | e_mr->ib.ib_mr.pd = &e_pd->ib_pd; | |
1578 | e_mr->ib.ib_mr.uobject = NULL; | |
1579 | atomic_inc(&(e_pd->ib_pd.usecnt)); | |
1580 | atomic_set(&(e_mr->ib.ib_mr.usecnt), 0); | |
1581 | *e_maxmr = e_mr; | |
1582 | return 0; | |
1583 | ||
1584 | ehca_reg_internal_maxmr_exit1: | |
1585 | ehca_mr_delete(e_mr); | |
1586 | ehca_reg_internal_maxmr_exit0: | |
1587 | if (ret) | |
e3722192 | 1588 | ehca_err(&shca->ib_device, "ret=%i shca=%p e_pd=%p e_maxmr=%p", |
fab97220 HS |
1589 | ret, shca, e_pd, e_maxmr); |
1590 | return ret; | |
1591 | } /* end ehca_reg_internal_maxmr() */ | |
1592 | ||
1593 | /*----------------------------------------------------------------------*/ | |
1594 | ||
1595 | int ehca_reg_maxmr(struct ehca_shca *shca, | |
1596 | struct ehca_mr *e_newmr, | |
1597 | u64 *iova_start, | |
1598 | int acl, | |
1599 | struct ehca_pd *e_pd, | |
1600 | u32 *lkey, | |
1601 | u32 *rkey) | |
1602 | { | |
1603 | u64 h_ret; | |
1604 | struct ehca_mr *e_origmr = shca->maxmr; | |
1605 | u32 hipz_acl; | |
2b94397a | 1606 | struct ehca_mr_hipzout_parms hipzout; |
fab97220 HS |
1607 | |
1608 | ehca_mrmw_map_acl(acl, &hipz_acl); | |
5bb7d929 | 1609 | ehca_mrmw_set_pgsize_hipz_acl(e_origmr->hwpage_size, &hipz_acl); |
fab97220 HS |
1610 | |
1611 | h_ret = hipz_h_register_smr(shca->ipz_hca_handle, e_newmr, e_origmr, | |
1612 | (u64)iova_start, hipz_acl, e_pd->fw_pd, | |
1613 | &hipzout); | |
1614 | if (h_ret != H_SUCCESS) { | |
e3722192 | 1615 | ehca_err(&shca->ib_device, "hipz_reg_smr failed, h_ret=%li " |
fab97220 HS |
1616 | "e_origmr=%p hca_hndl=%lx mr_hndl=%lx lkey=%x", |
1617 | h_ret, e_origmr, shca->ipz_hca_handle.handle, | |
1618 | e_origmr->ipz_mr_handle.handle, | |
1619 | e_origmr->ib.ib_mr.lkey); | |
a1a6ff11 | 1620 | return ehca2ib_return_code(h_ret); |
fab97220 HS |
1621 | } |
1622 | /* successful registration */ | |
df17bfd4 HNN |
1623 | e_newmr->num_kpages = e_origmr->num_kpages; |
1624 | e_newmr->num_hwpages = e_origmr->num_hwpages; | |
5bb7d929 | 1625 | e_newmr->hwpage_size = e_origmr->hwpage_size; |
df17bfd4 HNN |
1626 | e_newmr->start = iova_start; |
1627 | e_newmr->size = e_origmr->size; | |
1628 | e_newmr->acl = acl; | |
fab97220 HS |
1629 | e_newmr->ipz_mr_handle = hipzout.handle; |
1630 | *lkey = hipzout.lkey; | |
1631 | *rkey = hipzout.rkey; | |
1632 | return 0; | |
1633 | } /* end ehca_reg_maxmr() */ | |
1634 | ||
1635 | /*----------------------------------------------------------------------*/ | |
1636 | ||
1637 | int ehca_dereg_internal_maxmr(struct ehca_shca *shca) | |
1638 | { | |
1639 | int ret; | |
1640 | struct ehca_mr *e_maxmr; | |
1641 | struct ib_pd *ib_pd; | |
1642 | ||
1643 | if (!shca->maxmr) { | |
1644 | ehca_err(&shca->ib_device, "bad call, shca=%p", shca); | |
1645 | ret = -EINVAL; | |
1646 | goto ehca_dereg_internal_maxmr_exit0; | |
1647 | } | |
1648 | ||
1649 | e_maxmr = shca->maxmr; | |
1650 | ib_pd = e_maxmr->ib.ib_mr.pd; | |
1651 | shca->maxmr = NULL; /* remove internal max-MR indication from SHCA */ | |
1652 | ||
1653 | ret = ehca_dereg_mr(&e_maxmr->ib.ib_mr); | |
1654 | if (ret) { | |
1655 | ehca_err(&shca->ib_device, "dereg internal max-MR failed, " | |
e3722192 | 1656 | "ret=%i e_maxmr=%p shca=%p lkey=%x", |
fab97220 HS |
1657 | ret, e_maxmr, shca, e_maxmr->ib.ib_mr.lkey); |
1658 | shca->maxmr = e_maxmr; | |
1659 | goto ehca_dereg_internal_maxmr_exit0; | |
1660 | } | |
1661 | ||
1662 | atomic_dec(&ib_pd->usecnt); | |
1663 | ||
1664 | ehca_dereg_internal_maxmr_exit0: | |
1665 | if (ret) | |
e3722192 | 1666 | ehca_err(&shca->ib_device, "ret=%i shca=%p shca->maxmr=%p", |
fab97220 HS |
1667 | ret, shca, shca->maxmr); |
1668 | return ret; | |
1669 | } /* end ehca_dereg_internal_maxmr() */ | |
1670 | ||
1671 | /*----------------------------------------------------------------------*/ | |
1672 | ||
1673 | /* | |
1674 | * check physical buffer array of MR verbs for validness and | |
1675 | * calculates MR size | |
1676 | */ | |
1677 | int ehca_mr_chk_buf_and_calc_size(struct ib_phys_buf *phys_buf_array, | |
1678 | int num_phys_buf, | |
1679 | u64 *iova_start, | |
1680 | u64 *size) | |
1681 | { | |
1682 | struct ib_phys_buf *pbuf = phys_buf_array; | |
1683 | u64 size_count = 0; | |
1684 | u32 i; | |
1685 | ||
1686 | if (num_phys_buf == 0) { | |
1687 | ehca_gen_err("bad phys buf array len, num_phys_buf=0"); | |
1688 | return -EINVAL; | |
1689 | } | |
1690 | /* check first buffer */ | |
1691 | if (((u64)iova_start & ~PAGE_MASK) != (pbuf->addr & ~PAGE_MASK)) { | |
1692 | ehca_gen_err("iova_start/addr mismatch, iova_start=%p " | |
1693 | "pbuf->addr=%lx pbuf->size=%lx", | |
1694 | iova_start, pbuf->addr, pbuf->size); | |
1695 | return -EINVAL; | |
1696 | } | |
1697 | if (((pbuf->addr + pbuf->size) % PAGE_SIZE) && | |
1698 | (num_phys_buf > 1)) { | |
1699 | ehca_gen_err("addr/size mismatch in 1st buf, pbuf->addr=%lx " | |
1700 | "pbuf->size=%lx", pbuf->addr, pbuf->size); | |
1701 | return -EINVAL; | |
1702 | } | |
1703 | ||
1704 | for (i = 0; i < num_phys_buf; i++) { | |
1705 | if ((i > 0) && (pbuf->addr % PAGE_SIZE)) { | |
1706 | ehca_gen_err("bad address, i=%x pbuf->addr=%lx " | |
1707 | "pbuf->size=%lx", | |
1708 | i, pbuf->addr, pbuf->size); | |
1709 | return -EINVAL; | |
1710 | } | |
1711 | if (((i > 0) && /* not 1st */ | |
1712 | (i < (num_phys_buf - 1)) && /* not last */ | |
1713 | (pbuf->size % PAGE_SIZE)) || (pbuf->size == 0)) { | |
1714 | ehca_gen_err("bad size, i=%x pbuf->size=%lx", | |
1715 | i, pbuf->size); | |
1716 | return -EINVAL; | |
1717 | } | |
1718 | size_count += pbuf->size; | |
1719 | pbuf++; | |
1720 | } | |
1721 | ||
1722 | *size = size_count; | |
1723 | return 0; | |
1724 | } /* end ehca_mr_chk_buf_and_calc_size() */ | |
1725 | ||
1726 | /*----------------------------------------------------------------------*/ | |
1727 | ||
1728 | /* check page list of map FMR verb for validness */ | |
1729 | int ehca_fmr_check_page_list(struct ehca_mr *e_fmr, | |
1730 | u64 *page_list, | |
1731 | int list_len) | |
1732 | { | |
1733 | u32 i; | |
1734 | u64 *page; | |
1735 | ||
1736 | if ((list_len == 0) || (list_len > e_fmr->fmr_max_pages)) { | |
1737 | ehca_gen_err("bad list_len, list_len=%x " | |
1738 | "e_fmr->fmr_max_pages=%x fmr=%p", | |
1739 | list_len, e_fmr->fmr_max_pages, e_fmr); | |
1740 | return -EINVAL; | |
1741 | } | |
1742 | ||
1743 | /* each page must be aligned */ | |
1744 | page = page_list; | |
1745 | for (i = 0; i < list_len; i++) { | |
1746 | if (*page % e_fmr->fmr_page_size) { | |
1747 | ehca_gen_err("bad page, i=%x *page=%lx page=%p fmr=%p " | |
1748 | "fmr_page_size=%x", i, *page, page, e_fmr, | |
1749 | e_fmr->fmr_page_size); | |
1750 | return -EINVAL; | |
1751 | } | |
1752 | page++; | |
1753 | } | |
1754 | ||
1755 | return 0; | |
1756 | } /* end ehca_fmr_check_page_list() */ | |
1757 | ||
1758 | /*----------------------------------------------------------------------*/ | |
1759 | ||
187c72e3 HNN |
1760 | /* PAGE_SIZE >= pginfo->hwpage_size */ |
1761 | static int ehca_set_pagebuf_user1(struct ehca_mr_pginfo *pginfo, | |
1762 | u32 number, | |
1763 | u64 *kpage) | |
fab97220 HS |
1764 | { |
1765 | int ret = 0; | |
1766 | struct ib_umem_chunk *prev_chunk; | |
1767 | struct ib_umem_chunk *chunk; | |
187c72e3 | 1768 | u64 pgaddr; |
fab97220 HS |
1769 | u32 i = 0; |
1770 | u32 j = 0; | |
5bb7d929 | 1771 | int hwpages_per_kpage = PAGE_SIZE / pginfo->hwpage_size; |
fab97220 | 1772 | |
187c72e3 HNN |
1773 | /* loop over desired chunk entries */ |
1774 | chunk = pginfo->u.usr.next_chunk; | |
1775 | prev_chunk = pginfo->u.usr.next_chunk; | |
1776 | list_for_each_entry_continue( | |
1777 | chunk, (&(pginfo->u.usr.region->chunk_list)), list) { | |
1778 | for (i = pginfo->u.usr.next_nmap; i < chunk->nmap; ) { | |
c8ac5a73 | 1779 | pgaddr = page_to_pfn(sg_page(&chunk->page_list[i])) |
187c72e3 HNN |
1780 | << PAGE_SHIFT ; |
1781 | *kpage = phys_to_abs(pgaddr + | |
1782 | (pginfo->next_hwpage * | |
5bb7d929 | 1783 | pginfo->hwpage_size)); |
fab97220 | 1784 | if ( !(*kpage) ) { |
187c72e3 HNN |
1785 | ehca_gen_err("pgaddr=%lx " |
1786 | "chunk->page_list[i]=%lx " | |
1787 | "i=%x next_hwpage=%lx", | |
1788 | pgaddr, (u64)sg_dma_address( | |
1789 | &chunk->page_list[i]), | |
1790 | i, pginfo->next_hwpage); | |
1791 | return -EFAULT; | |
fab97220 | 1792 | } |
df17bfd4 HNN |
1793 | (pginfo->hwpage_cnt)++; |
1794 | (pginfo->next_hwpage)++; | |
fab97220 | 1795 | kpage++; |
5bb7d929 | 1796 | if (pginfo->next_hwpage % hwpages_per_kpage == 0) { |
df17bfd4 | 1797 | (pginfo->kpage_cnt)++; |
187c72e3 | 1798 | (pginfo->u.usr.next_nmap)++; |
df17bfd4 | 1799 | pginfo->next_hwpage = 0; |
187c72e3 | 1800 | i++; |
fab97220 | 1801 | } |
187c72e3 HNN |
1802 | j++; |
1803 | if (j >= number) break; | |
fab97220 | 1804 | } |
187c72e3 HNN |
1805 | if ((pginfo->u.usr.next_nmap >= chunk->nmap) && |
1806 | (j >= number)) { | |
1807 | pginfo->u.usr.next_nmap = 0; | |
1808 | prev_chunk = chunk; | |
1809 | break; | |
1810 | } else if (pginfo->u.usr.next_nmap >= chunk->nmap) { | |
1811 | pginfo->u.usr.next_nmap = 0; | |
1812 | prev_chunk = chunk; | |
1813 | } else if (j >= number) | |
1814 | break; | |
1815 | else | |
1816 | prev_chunk = chunk; | |
fab97220 | 1817 | } |
187c72e3 HNN |
1818 | pginfo->u.usr.next_chunk = |
1819 | list_prepare_entry(prev_chunk, | |
1820 | (&(pginfo->u.usr.region->chunk_list)), | |
1821 | list); | |
fab97220 | 1822 | return ret; |
187c72e3 | 1823 | } |
fab97220 | 1824 | |
5bb7d929 HNN |
1825 | /* |
1826 | * check given pages for contiguous layout | |
1827 | * last page addr is returned in prev_pgaddr for further check | |
1828 | */ | |
1829 | static int ehca_check_kpages_per_ate(struct scatterlist *page_list, | |
1830 | int start_idx, int end_idx, | |
1831 | u64 *prev_pgaddr) | |
1832 | { | |
1833 | int t; | |
1834 | for (t = start_idx; t <= end_idx; t++) { | |
c8ac5a73 | 1835 | u64 pgaddr = page_to_pfn(sg_page(&page_list[t])) << PAGE_SHIFT; |
5bb7d929 HNN |
1836 | ehca_gen_dbg("chunk_page=%lx value=%016lx", pgaddr, |
1837 | *(u64 *)abs_to_virt(phys_to_abs(pgaddr))); | |
1838 | if (pgaddr - PAGE_SIZE != *prev_pgaddr) { | |
1839 | ehca_gen_err("uncontiguous page found pgaddr=%lx " | |
1840 | "prev_pgaddr=%lx page_list_i=%x", | |
1841 | pgaddr, *prev_pgaddr, t); | |
1842 | return -EINVAL; | |
1843 | } | |
1844 | *prev_pgaddr = pgaddr; | |
1845 | } | |
1846 | return 0; | |
1847 | } | |
1848 | ||
1849 | /* PAGE_SIZE < pginfo->hwpage_size */ | |
1850 | static int ehca_set_pagebuf_user2(struct ehca_mr_pginfo *pginfo, | |
1851 | u32 number, | |
1852 | u64 *kpage) | |
1853 | { | |
1854 | int ret = 0; | |
1855 | struct ib_umem_chunk *prev_chunk; | |
1856 | struct ib_umem_chunk *chunk; | |
1857 | u64 pgaddr, prev_pgaddr; | |
1858 | u32 i = 0; | |
1859 | u32 j = 0; | |
1860 | int kpages_per_hwpage = pginfo->hwpage_size / PAGE_SIZE; | |
1861 | int nr_kpages = kpages_per_hwpage; | |
1862 | ||
1863 | /* loop over desired chunk entries */ | |
1864 | chunk = pginfo->u.usr.next_chunk; | |
1865 | prev_chunk = pginfo->u.usr.next_chunk; | |
1866 | list_for_each_entry_continue( | |
1867 | chunk, (&(pginfo->u.usr.region->chunk_list)), list) { | |
1868 | for (i = pginfo->u.usr.next_nmap; i < chunk->nmap; ) { | |
1869 | if (nr_kpages == kpages_per_hwpage) { | |
c8ac5a73 | 1870 | pgaddr = ( page_to_pfn(sg_page(&chunk->page_list[i])) |
5bb7d929 HNN |
1871 | << PAGE_SHIFT ); |
1872 | *kpage = phys_to_abs(pgaddr); | |
1873 | if ( !(*kpage) ) { | |
1874 | ehca_gen_err("pgaddr=%lx i=%x", | |
1875 | pgaddr, i); | |
1876 | ret = -EFAULT; | |
1877 | return ret; | |
1878 | } | |
1879 | /* | |
1880 | * The first page in a hwpage must be aligned; | |
1881 | * the first MR page is exempt from this rule. | |
1882 | */ | |
1883 | if (pgaddr & (pginfo->hwpage_size - 1)) { | |
1884 | if (pginfo->hwpage_cnt) { | |
1885 | ehca_gen_err( | |
1886 | "invalid alignment " | |
1887 | "pgaddr=%lx i=%x " | |
1888 | "mr_pgsize=%lx", | |
1889 | pgaddr, i, | |
1890 | pginfo->hwpage_size); | |
1891 | ret = -EFAULT; | |
1892 | return ret; | |
1893 | } | |
1894 | /* first MR page */ | |
1895 | pginfo->kpage_cnt = | |
1896 | (pgaddr & | |
1897 | (pginfo->hwpage_size - 1)) >> | |
1898 | PAGE_SHIFT; | |
1899 | nr_kpages -= pginfo->kpage_cnt; | |
1900 | *kpage = phys_to_abs( | |
1901 | pgaddr & | |
1902 | ~(pginfo->hwpage_size - 1)); | |
1903 | } | |
1904 | ehca_gen_dbg("kpage=%lx chunk_page=%lx " | |
1905 | "value=%016lx", *kpage, pgaddr, | |
1906 | *(u64 *)abs_to_virt( | |
1907 | phys_to_abs(pgaddr))); | |
1908 | prev_pgaddr = pgaddr; | |
1909 | i++; | |
1910 | pginfo->kpage_cnt++; | |
1911 | pginfo->u.usr.next_nmap++; | |
1912 | nr_kpages--; | |
1913 | if (!nr_kpages) | |
1914 | goto next_kpage; | |
1915 | continue; | |
1916 | } | |
1917 | if (i + nr_kpages > chunk->nmap) { | |
1918 | ret = ehca_check_kpages_per_ate( | |
1919 | chunk->page_list, i, | |
1920 | chunk->nmap - 1, &prev_pgaddr); | |
1921 | if (ret) return ret; | |
1922 | pginfo->kpage_cnt += chunk->nmap - i; | |
1923 | pginfo->u.usr.next_nmap += chunk->nmap - i; | |
1924 | nr_kpages -= chunk->nmap - i; | |
1925 | break; | |
1926 | } | |
1927 | ||
1928 | ret = ehca_check_kpages_per_ate(chunk->page_list, i, | |
1929 | i + nr_kpages - 1, | |
1930 | &prev_pgaddr); | |
1931 | if (ret) return ret; | |
1932 | i += nr_kpages; | |
1933 | pginfo->kpage_cnt += nr_kpages; | |
1934 | pginfo->u.usr.next_nmap += nr_kpages; | |
1935 | next_kpage: | |
1936 | nr_kpages = kpages_per_hwpage; | |
1937 | (pginfo->hwpage_cnt)++; | |
1938 | kpage++; | |
1939 | j++; | |
1940 | if (j >= number) break; | |
1941 | } | |
1942 | if ((pginfo->u.usr.next_nmap >= chunk->nmap) && | |
1943 | (j >= number)) { | |
1944 | pginfo->u.usr.next_nmap = 0; | |
1945 | prev_chunk = chunk; | |
1946 | break; | |
1947 | } else if (pginfo->u.usr.next_nmap >= chunk->nmap) { | |
1948 | pginfo->u.usr.next_nmap = 0; | |
1949 | prev_chunk = chunk; | |
1950 | } else if (j >= number) | |
1951 | break; | |
1952 | else | |
1953 | prev_chunk = chunk; | |
1954 | } | |
1955 | pginfo->u.usr.next_chunk = | |
1956 | list_prepare_entry(prev_chunk, | |
1957 | (&(pginfo->u.usr.region->chunk_list)), | |
1958 | list); | |
1959 | return ret; | |
1960 | } | |
1961 | ||
187c72e3 HNN |
1962 | int ehca_set_pagebuf_phys(struct ehca_mr_pginfo *pginfo, |
1963 | u32 number, | |
1964 | u64 *kpage) | |
fab97220 HS |
1965 | { |
1966 | int ret = 0; | |
187c72e3 HNN |
1967 | struct ib_phys_buf *pbuf; |
1968 | u64 num_hw, offs_hw; | |
1969 | u32 i = 0; | |
1970 | ||
1971 | /* loop over desired phys_buf_array entries */ | |
1972 | while (i < number) { | |
1973 | pbuf = pginfo->u.phy.phys_buf_array + pginfo->u.phy.next_buf; | |
5bb7d929 HNN |
1974 | num_hw = NUM_CHUNKS((pbuf->addr % pginfo->hwpage_size) + |
1975 | pbuf->size, pginfo->hwpage_size); | |
1976 | offs_hw = (pbuf->addr & ~(pginfo->hwpage_size - 1)) / | |
1977 | pginfo->hwpage_size; | |
187c72e3 HNN |
1978 | while (pginfo->next_hwpage < offs_hw + num_hw) { |
1979 | /* sanity check */ | |
1980 | if ((pginfo->kpage_cnt >= pginfo->num_kpages) || | |
1981 | (pginfo->hwpage_cnt >= pginfo->num_hwpages)) { | |
1982 | ehca_gen_err("kpage_cnt >= num_kpages, " | |
1983 | "kpage_cnt=%lx num_kpages=%lx " | |
1984 | "hwpage_cnt=%lx " | |
1985 | "num_hwpages=%lx i=%x", | |
1986 | pginfo->kpage_cnt, | |
1987 | pginfo->num_kpages, | |
1988 | pginfo->hwpage_cnt, | |
1989 | pginfo->num_hwpages, i); | |
1990 | return -EFAULT; | |
1991 | } | |
1992 | *kpage = phys_to_abs( | |
5bb7d929 HNN |
1993 | (pbuf->addr & ~(pginfo->hwpage_size - 1)) + |
1994 | (pginfo->next_hwpage * pginfo->hwpage_size)); | |
187c72e3 | 1995 | if ( !(*kpage) && pbuf->addr ) { |
5bb7d929 | 1996 | ehca_gen_err("pbuf->addr=%lx pbuf->size=%lx " |
187c72e3 | 1997 | "next_hwpage=%lx", pbuf->addr, |
5bb7d929 | 1998 | pbuf->size, pginfo->next_hwpage); |
187c72e3 | 1999 | return -EFAULT; |
fab97220 | 2000 | } |
df17bfd4 HNN |
2001 | (pginfo->hwpage_cnt)++; |
2002 | (pginfo->next_hwpage)++; | |
5bb7d929 HNN |
2003 | if (PAGE_SIZE >= pginfo->hwpage_size) { |
2004 | if (pginfo->next_hwpage % | |
2005 | (PAGE_SIZE / pginfo->hwpage_size) == 0) | |
2006 | (pginfo->kpage_cnt)++; | |
2007 | } else | |
2008 | pginfo->kpage_cnt += pginfo->hwpage_size / | |
2009 | PAGE_SIZE; | |
187c72e3 HNN |
2010 | kpage++; |
2011 | i++; | |
2012 | if (i >= number) break; | |
fab97220 | 2013 | } |
187c72e3 HNN |
2014 | if (pginfo->next_hwpage >= offs_hw + num_hw) { |
2015 | (pginfo->u.phy.next_buf)++; | |
2016 | pginfo->next_hwpage = 0; | |
2017 | } | |
2018 | } | |
2019 | return ret; | |
2020 | } | |
2021 | ||
2022 | int ehca_set_pagebuf_fmr(struct ehca_mr_pginfo *pginfo, | |
2023 | u32 number, | |
2024 | u64 *kpage) | |
2025 | { | |
2026 | int ret = 0; | |
2027 | u64 *fmrlist; | |
2028 | u32 i; | |
2029 | ||
2030 | /* loop over desired page_list entries */ | |
2031 | fmrlist = pginfo->u.fmr.page_list + pginfo->u.fmr.next_listelem; | |
2032 | for (i = 0; i < number; i++) { | |
5bb7d929 HNN |
2033 | *kpage = phys_to_abs((*fmrlist & ~(pginfo->hwpage_size - 1)) + |
2034 | pginfo->next_hwpage * pginfo->hwpage_size); | |
187c72e3 | 2035 | if ( !(*kpage) ) { |
fab97220 | 2036 | ehca_gen_err("*fmrlist=%lx fmrlist=%p " |
df17bfd4 | 2037 | "next_listelem=%lx next_hwpage=%lx", |
187c72e3 HNN |
2038 | *fmrlist, fmrlist, |
2039 | pginfo->u.fmr.next_listelem, | |
df17bfd4 | 2040 | pginfo->next_hwpage); |
187c72e3 | 2041 | return -EFAULT; |
fab97220 | 2042 | } |
df17bfd4 | 2043 | (pginfo->hwpage_cnt)++; |
5bb7d929 HNN |
2044 | if (pginfo->u.fmr.fmr_pgsize >= pginfo->hwpage_size) { |
2045 | if (pginfo->next_hwpage % | |
2046 | (pginfo->u.fmr.fmr_pgsize / | |
2047 | pginfo->hwpage_size) == 0) { | |
2048 | (pginfo->kpage_cnt)++; | |
2049 | (pginfo->u.fmr.next_listelem)++; | |
2050 | fmrlist++; | |
2051 | pginfo->next_hwpage = 0; | |
2052 | } else | |
2053 | (pginfo->next_hwpage)++; | |
2054 | } else { | |
2055 | unsigned int cnt_per_hwpage = pginfo->hwpage_size / | |
2056 | pginfo->u.fmr.fmr_pgsize; | |
2057 | unsigned int j; | |
2058 | u64 prev = *kpage; | |
2059 | /* check if adrs are contiguous */ | |
2060 | for (j = 1; j < cnt_per_hwpage; j++) { | |
2061 | u64 p = phys_to_abs(fmrlist[j] & | |
2062 | ~(pginfo->hwpage_size - 1)); | |
2063 | if (prev + pginfo->u.fmr.fmr_pgsize != p) { | |
2064 | ehca_gen_err("uncontiguous fmr pages " | |
2065 | "found prev=%lx p=%lx " | |
2066 | "idx=%x", prev, p, i + j); | |
2067 | return -EINVAL; | |
2068 | } | |
2069 | prev = p; | |
2070 | } | |
2071 | pginfo->kpage_cnt += cnt_per_hwpage; | |
2072 | pginfo->u.fmr.next_listelem += cnt_per_hwpage; | |
2073 | fmrlist += cnt_per_hwpage; | |
fab97220 | 2074 | } |
5bb7d929 | 2075 | kpage++; |
187c72e3 HNN |
2076 | } |
2077 | return ret; | |
2078 | } | |
2079 | ||
2080 | /* setup page buffer from page info */ | |
2081 | int ehca_set_pagebuf(struct ehca_mr_pginfo *pginfo, | |
2082 | u32 number, | |
2083 | u64 *kpage) | |
2084 | { | |
2085 | int ret; | |
2086 | ||
2087 | switch (pginfo->type) { | |
2088 | case EHCA_MR_PGI_PHYS: | |
2089 | ret = ehca_set_pagebuf_phys(pginfo, number, kpage); | |
2090 | break; | |
2091 | case EHCA_MR_PGI_USER: | |
5bb7d929 HNN |
2092 | ret = PAGE_SIZE >= pginfo->hwpage_size ? |
2093 | ehca_set_pagebuf_user1(pginfo, number, kpage) : | |
2094 | ehca_set_pagebuf_user2(pginfo, number, kpage); | |
187c72e3 HNN |
2095 | break; |
2096 | case EHCA_MR_PGI_FMR: | |
2097 | ret = ehca_set_pagebuf_fmr(pginfo, number, kpage); | |
2098 | break; | |
2099 | default: | |
fab97220 HS |
2100 | ehca_gen_err("bad pginfo->type=%x", pginfo->type); |
2101 | ret = -EFAULT; | |
187c72e3 | 2102 | break; |
fab97220 | 2103 | } |
fab97220 | 2104 | return ret; |
187c72e3 | 2105 | } /* end ehca_set_pagebuf() */ |
fab97220 HS |
2106 | |
2107 | /*----------------------------------------------------------------------*/ | |
2108 | ||
2109 | /* | |
2110 | * check MR if it is a max-MR, i.e. uses whole memory | |
2111 | * in case it's a max-MR 1 is returned, else 0 | |
2112 | */ | |
2113 | int ehca_mr_is_maxmr(u64 size, | |
2114 | u64 *iova_start) | |
2115 | { | |
2116 | /* a MR is treated as max-MR only if it fits following: */ | |
2117 | if ((size == ((u64)high_memory - PAGE_OFFSET)) && | |
2b94397a | 2118 | (iova_start == (void *)KERNELBASE)) { |
fab97220 HS |
2119 | ehca_gen_dbg("this is a max-MR"); |
2120 | return 1; | |
2121 | } else | |
2122 | return 0; | |
2123 | } /* end ehca_mr_is_maxmr() */ | |
2124 | ||
2125 | /*----------------------------------------------------------------------*/ | |
2126 | ||
2127 | /* map access control for MR/MW. This routine is used for MR and MW. */ | |
2128 | void ehca_mrmw_map_acl(int ib_acl, | |
2129 | u32 *hipz_acl) | |
2130 | { | |
2131 | *hipz_acl = 0; | |
2132 | if (ib_acl & IB_ACCESS_REMOTE_READ) | |
2133 | *hipz_acl |= HIPZ_ACCESSCTRL_R_READ; | |
2134 | if (ib_acl & IB_ACCESS_REMOTE_WRITE) | |
2135 | *hipz_acl |= HIPZ_ACCESSCTRL_R_WRITE; | |
2136 | if (ib_acl & IB_ACCESS_REMOTE_ATOMIC) | |
2137 | *hipz_acl |= HIPZ_ACCESSCTRL_R_ATOMIC; | |
2138 | if (ib_acl & IB_ACCESS_LOCAL_WRITE) | |
2139 | *hipz_acl |= HIPZ_ACCESSCTRL_L_WRITE; | |
2140 | if (ib_acl & IB_ACCESS_MW_BIND) | |
2141 | *hipz_acl |= HIPZ_ACCESSCTRL_MW_BIND; | |
2142 | } /* end ehca_mrmw_map_acl() */ | |
2143 | ||
2144 | /*----------------------------------------------------------------------*/ | |
2145 | ||
2146 | /* sets page size in hipz access control for MR/MW. */ | |
5bb7d929 | 2147 | void ehca_mrmw_set_pgsize_hipz_acl(u32 pgsize, u32 *hipz_acl) /*INOUT*/ |
fab97220 | 2148 | { |
5bb7d929 | 2149 | *hipz_acl |= (ehca_encode_hwpage_size(pgsize) << 24); |
fab97220 HS |
2150 | } /* end ehca_mrmw_set_pgsize_hipz_acl() */ |
2151 | ||
2152 | /*----------------------------------------------------------------------*/ | |
2153 | ||
2154 | /* | |
2155 | * reverse map access control for MR/MW. | |
2156 | * This routine is used for MR and MW. | |
2157 | */ | |
2158 | void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl, | |
2159 | int *ib_acl) /*OUT*/ | |
2160 | { | |
2161 | *ib_acl = 0; | |
2162 | if (*hipz_acl & HIPZ_ACCESSCTRL_R_READ) | |
2163 | *ib_acl |= IB_ACCESS_REMOTE_READ; | |
2164 | if (*hipz_acl & HIPZ_ACCESSCTRL_R_WRITE) | |
2165 | *ib_acl |= IB_ACCESS_REMOTE_WRITE; | |
2166 | if (*hipz_acl & HIPZ_ACCESSCTRL_R_ATOMIC) | |
2167 | *ib_acl |= IB_ACCESS_REMOTE_ATOMIC; | |
2168 | if (*hipz_acl & HIPZ_ACCESSCTRL_L_WRITE) | |
2169 | *ib_acl |= IB_ACCESS_LOCAL_WRITE; | |
2170 | if (*hipz_acl & HIPZ_ACCESSCTRL_MW_BIND) | |
2171 | *ib_acl |= IB_ACCESS_MW_BIND; | |
2172 | } /* end ehca_mrmw_reverse_map_acl() */ | |
2173 | ||
2174 | ||
fab97220 HS |
2175 | /*----------------------------------------------------------------------*/ |
2176 | ||
2177 | /* | |
2178 | * MR destructor and constructor | |
2179 | * used in Reregister MR verb, sets all fields in ehca_mr_t to 0, | |
2180 | * except struct ib_mr and spinlock | |
2181 | */ | |
2182 | void ehca_mr_deletenew(struct ehca_mr *mr) | |
2183 | { | |
df17bfd4 HNN |
2184 | mr->flags = 0; |
2185 | mr->num_kpages = 0; | |
2186 | mr->num_hwpages = 0; | |
2187 | mr->acl = 0; | |
2188 | mr->start = NULL; | |
fab97220 HS |
2189 | mr->fmr_page_size = 0; |
2190 | mr->fmr_max_pages = 0; | |
df17bfd4 HNN |
2191 | mr->fmr_max_maps = 0; |
2192 | mr->fmr_map_cnt = 0; | |
fab97220 HS |
2193 | memset(&mr->ipz_mr_handle, 0, sizeof(mr->ipz_mr_handle)); |
2194 | memset(&mr->galpas, 0, sizeof(mr->galpas)); | |
fab97220 HS |
2195 | } /* end ehca_mr_deletenew() */ |
2196 | ||
2197 | int ehca_init_mrmw_cache(void) | |
2198 | { | |
2199 | mr_cache = kmem_cache_create("ehca_cache_mr", | |
2200 | sizeof(struct ehca_mr), 0, | |
2201 | SLAB_HWCACHE_ALIGN, | |
20c2df83 | 2202 | NULL); |
fab97220 HS |
2203 | if (!mr_cache) |
2204 | return -ENOMEM; | |
2205 | mw_cache = kmem_cache_create("ehca_cache_mw", | |
2206 | sizeof(struct ehca_mw), 0, | |
2207 | SLAB_HWCACHE_ALIGN, | |
20c2df83 | 2208 | NULL); |
fab97220 HS |
2209 | if (!mw_cache) { |
2210 | kmem_cache_destroy(mr_cache); | |
2211 | mr_cache = NULL; | |
2212 | return -ENOMEM; | |
2213 | } | |
2214 | return 0; | |
2215 | } | |
2216 | ||
2217 | void ehca_cleanup_mrmw_cache(void) | |
2218 | { | |
2219 | if (mr_cache) | |
2220 | kmem_cache_destroy(mr_cache); | |
2221 | if (mw_cache) | |
2222 | kmem_cache_destroy(mw_cache); | |
2223 | } |