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fab97220 HS |
1 | /* |
2 | * IBM eServer eHCA Infiniband device driver for Linux on POWER | |
3 | * | |
4 | * QP functions | |
5 | * | |
a6a12947 JF |
6 | * Authors: Joachim Fenkes <fenkes@de.ibm.com> |
7 | * Stefan Roscher <stefan.roscher@de.ibm.com> | |
8 | * Waleri Fomin <fomin@de.ibm.com> | |
fab97220 HS |
9 | * Hoang-Nam Nguyen <hnguyen@de.ibm.com> |
10 | * Reinhard Ernst <rernst@de.ibm.com> | |
11 | * Heiko J Schick <schickhj@de.ibm.com> | |
12 | * | |
13 | * Copyright (c) 2005 IBM Corporation | |
14 | * | |
15 | * All rights reserved. | |
16 | * | |
17 | * This source code is distributed under a dual license of GPL v2.0 and OpenIB | |
18 | * BSD. | |
19 | * | |
20 | * OpenIB BSD License | |
21 | * | |
22 | * Redistribution and use in source and binary forms, with or without | |
23 | * modification, are permitted provided that the following conditions are met: | |
24 | * | |
25 | * Redistributions of source code must retain the above copyright notice, this | |
26 | * list of conditions and the following disclaimer. | |
27 | * | |
28 | * Redistributions in binary form must reproduce the above copyright notice, | |
29 | * this list of conditions and the following disclaimer in the documentation | |
30 | * and/or other materials | |
31 | * provided with the distribution. | |
32 | * | |
33 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
34 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
35 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
36 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
37 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
38 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
39 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
40 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | |
41 | * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
42 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
43 | * POSSIBILITY OF SUCH DAMAGE. | |
44 | */ | |
45 | ||
5a0e3ad6 TH |
46 | #include <linux/slab.h> |
47 | ||
fab97220 HS |
48 | #include "ehca_classes.h" |
49 | #include "ehca_tools.h" | |
50 | #include "ehca_qes.h" | |
51 | #include "ehca_iverbs.h" | |
52 | #include "hcp_if.h" | |
53 | #include "hipz_fns.h" | |
54 | ||
55 | static struct kmem_cache *qp_cache; | |
56 | ||
57 | /* | |
58 | * attributes not supported by query qp | |
59 | */ | |
fa55e30b | 60 | #define QP_ATTR_QUERY_NOT_SUPPORTED (IB_QP_ACCESS_FLAGS | \ |
fab97220 HS |
61 | IB_QP_EN_SQD_ASYNC_NOTIFY) |
62 | ||
63 | /* | |
64 | * ehca (internal) qp state values | |
65 | */ | |
66 | enum ehca_qp_state { | |
67 | EHCA_QPS_RESET = 1, | |
68 | EHCA_QPS_INIT = 2, | |
69 | EHCA_QPS_RTR = 3, | |
70 | EHCA_QPS_RTS = 5, | |
71 | EHCA_QPS_SQD = 6, | |
72 | EHCA_QPS_SQE = 8, | |
73 | EHCA_QPS_ERR = 128 | |
74 | }; | |
75 | ||
76 | /* | |
77 | * qp state transitions as defined by IB Arch Rel 1.1 page 431 | |
78 | */ | |
79 | enum ib_qp_statetrans { | |
80 | IB_QPST_ANY2RESET, | |
81 | IB_QPST_ANY2ERR, | |
82 | IB_QPST_RESET2INIT, | |
83 | IB_QPST_INIT2RTR, | |
84 | IB_QPST_INIT2INIT, | |
85 | IB_QPST_RTR2RTS, | |
86 | IB_QPST_RTS2SQD, | |
87 | IB_QPST_RTS2RTS, | |
88 | IB_QPST_SQD2RTS, | |
89 | IB_QPST_SQE2RTS, | |
90 | IB_QPST_SQD2SQD, | |
91 | IB_QPST_MAX /* nr of transitions, this must be last!!! */ | |
92 | }; | |
93 | ||
94 | /* | |
95 | * ib2ehca_qp_state maps IB to ehca qp_state | |
96 | * returns ehca qp state corresponding to given ib qp state | |
97 | */ | |
98 | static inline enum ehca_qp_state ib2ehca_qp_state(enum ib_qp_state ib_qp_state) | |
99 | { | |
100 | switch (ib_qp_state) { | |
101 | case IB_QPS_RESET: | |
102 | return EHCA_QPS_RESET; | |
103 | case IB_QPS_INIT: | |
104 | return EHCA_QPS_INIT; | |
105 | case IB_QPS_RTR: | |
106 | return EHCA_QPS_RTR; | |
107 | case IB_QPS_RTS: | |
108 | return EHCA_QPS_RTS; | |
109 | case IB_QPS_SQD: | |
110 | return EHCA_QPS_SQD; | |
111 | case IB_QPS_SQE: | |
112 | return EHCA_QPS_SQE; | |
113 | case IB_QPS_ERR: | |
114 | return EHCA_QPS_ERR; | |
115 | default: | |
116 | ehca_gen_err("invalid ib_qp_state=%x", ib_qp_state); | |
117 | return -EINVAL; | |
118 | } | |
119 | } | |
120 | ||
121 | /* | |
122 | * ehca2ib_qp_state maps ehca to IB qp_state | |
123 | * returns ib qp state corresponding to given ehca qp state | |
124 | */ | |
125 | static inline enum ib_qp_state ehca2ib_qp_state(enum ehca_qp_state | |
126 | ehca_qp_state) | |
127 | { | |
128 | switch (ehca_qp_state) { | |
129 | case EHCA_QPS_RESET: | |
130 | return IB_QPS_RESET; | |
131 | case EHCA_QPS_INIT: | |
132 | return IB_QPS_INIT; | |
133 | case EHCA_QPS_RTR: | |
134 | return IB_QPS_RTR; | |
135 | case EHCA_QPS_RTS: | |
136 | return IB_QPS_RTS; | |
137 | case EHCA_QPS_SQD: | |
138 | return IB_QPS_SQD; | |
139 | case EHCA_QPS_SQE: | |
140 | return IB_QPS_SQE; | |
141 | case EHCA_QPS_ERR: | |
142 | return IB_QPS_ERR; | |
143 | default: | |
144 | ehca_gen_err("invalid ehca_qp_state=%x", ehca_qp_state); | |
145 | return -EINVAL; | |
146 | } | |
147 | } | |
148 | ||
149 | /* | |
150 | * ehca_qp_type used as index for req_attr and opt_attr of | |
151 | * struct ehca_modqp_statetrans | |
152 | */ | |
153 | enum ehca_qp_type { | |
154 | QPT_RC = 0, | |
155 | QPT_UC = 1, | |
156 | QPT_UD = 2, | |
157 | QPT_SQP = 3, | |
158 | QPT_MAX | |
159 | }; | |
160 | ||
161 | /* | |
162 | * ib2ehcaqptype maps Ib to ehca qp_type | |
163 | * returns ehca qp type corresponding to ib qp type | |
164 | */ | |
165 | static inline enum ehca_qp_type ib2ehcaqptype(enum ib_qp_type ibqptype) | |
166 | { | |
167 | switch (ibqptype) { | |
168 | case IB_QPT_SMI: | |
169 | case IB_QPT_GSI: | |
170 | return QPT_SQP; | |
171 | case IB_QPT_RC: | |
172 | return QPT_RC; | |
173 | case IB_QPT_UC: | |
174 | return QPT_UC; | |
175 | case IB_QPT_UD: | |
176 | return QPT_UD; | |
177 | default: | |
178 | ehca_gen_err("Invalid ibqptype=%x", ibqptype); | |
179 | return -EINVAL; | |
180 | } | |
181 | } | |
182 | ||
183 | static inline enum ib_qp_statetrans get_modqp_statetrans(int ib_fromstate, | |
184 | int ib_tostate) | |
185 | { | |
186 | int index = -EINVAL; | |
187 | switch (ib_tostate) { | |
188 | case IB_QPS_RESET: | |
189 | index = IB_QPST_ANY2RESET; | |
190 | break; | |
191 | case IB_QPS_INIT: | |
192 | switch (ib_fromstate) { | |
193 | case IB_QPS_RESET: | |
194 | index = IB_QPST_RESET2INIT; | |
195 | break; | |
196 | case IB_QPS_INIT: | |
197 | index = IB_QPST_INIT2INIT; | |
198 | break; | |
199 | } | |
200 | break; | |
201 | case IB_QPS_RTR: | |
202 | if (ib_fromstate == IB_QPS_INIT) | |
203 | index = IB_QPST_INIT2RTR; | |
204 | break; | |
205 | case IB_QPS_RTS: | |
206 | switch (ib_fromstate) { | |
207 | case IB_QPS_RTR: | |
208 | index = IB_QPST_RTR2RTS; | |
209 | break; | |
210 | case IB_QPS_RTS: | |
211 | index = IB_QPST_RTS2RTS; | |
212 | break; | |
213 | case IB_QPS_SQD: | |
214 | index = IB_QPST_SQD2RTS; | |
215 | break; | |
216 | case IB_QPS_SQE: | |
217 | index = IB_QPST_SQE2RTS; | |
218 | break; | |
219 | } | |
220 | break; | |
221 | case IB_QPS_SQD: | |
222 | if (ib_fromstate == IB_QPS_RTS) | |
223 | index = IB_QPST_RTS2SQD; | |
224 | break; | |
225 | case IB_QPS_SQE: | |
226 | break; | |
227 | case IB_QPS_ERR: | |
228 | index = IB_QPST_ANY2ERR; | |
229 | break; | |
230 | default: | |
231 | break; | |
232 | } | |
233 | return index; | |
234 | } | |
235 | ||
fab97220 HS |
236 | /* |
237 | * ibqptype2servicetype returns hcp service type corresponding to given | |
238 | * ib qp type used by create_qp() | |
239 | */ | |
240 | static inline int ibqptype2servicetype(enum ib_qp_type ibqptype) | |
241 | { | |
242 | switch (ibqptype) { | |
243 | case IB_QPT_SMI: | |
244 | case IB_QPT_GSI: | |
245 | return ST_UD; | |
246 | case IB_QPT_RC: | |
247 | return ST_RC; | |
248 | case IB_QPT_UC: | |
249 | return ST_UC; | |
250 | case IB_QPT_UD: | |
251 | return ST_UD; | |
252 | case IB_QPT_RAW_IPV6: | |
253 | return -EINVAL; | |
a2ebf07a | 254 | case IB_QPT_RAW_ETHERTYPE: |
fab97220 HS |
255 | return -EINVAL; |
256 | default: | |
257 | ehca_gen_err("Invalid ibqptype=%x", ibqptype); | |
258 | return -EINVAL; | |
259 | } | |
260 | } | |
261 | ||
a6a12947 JF |
262 | /* |
263 | * init userspace queue info from ipz_queue data | |
264 | */ | |
265 | static inline void queue2resp(struct ipzu_queue_resp *resp, | |
266 | struct ipz_queue *queue) | |
267 | { | |
268 | resp->qe_size = queue->qe_size; | |
269 | resp->act_nr_of_sg = queue->act_nr_of_sg; | |
270 | resp->queue_length = queue->queue_length; | |
271 | resp->pagesize = queue->pagesize; | |
272 | resp->toggle_state = queue->toggle_state; | |
441633b9 | 273 | resp->offset = queue->offset; |
a6a12947 JF |
274 | } |
275 | ||
fab97220 | 276 | /* |
9a79fc0a | 277 | * init_qp_queue initializes/constructs r/squeue and registers queue pages. |
fab97220 | 278 | */ |
9a79fc0a | 279 | static inline int init_qp_queue(struct ehca_shca *shca, |
e2f81daf | 280 | struct ehca_pd *pd, |
9a79fc0a JF |
281 | struct ehca_qp *my_qp, |
282 | struct ipz_queue *queue, | |
283 | int q_type, | |
284 | u64 expected_hret, | |
e2f81daf SR |
285 | struct ehca_alloc_queue_parms *parms, |
286 | int wqe_size) | |
fab97220 | 287 | { |
e2f81daf | 288 | int ret, cnt, ipz_rc, nr_q_pages; |
fab97220 HS |
289 | void *vpage; |
290 | u64 rpage, h_ret; | |
291 | struct ib_device *ib_dev = &shca->ib_device; | |
292 | struct ipz_adapter_handle ipz_hca_handle = shca->ipz_hca_handle; | |
293 | ||
e2f81daf | 294 | if (!parms->queue_size) |
9a79fc0a JF |
295 | return 0; |
296 | ||
e2f81daf SR |
297 | if (parms->is_small) { |
298 | nr_q_pages = 1; | |
299 | ipz_rc = ipz_queue_ctor(pd, queue, nr_q_pages, | |
300 | 128 << parms->page_size, | |
301 | wqe_size, parms->act_nr_sges, 1); | |
302 | } else { | |
303 | nr_q_pages = parms->queue_size; | |
304 | ipz_rc = ipz_queue_ctor(pd, queue, nr_q_pages, | |
305 | EHCA_PAGESIZE, wqe_size, | |
306 | parms->act_nr_sges, 0); | |
307 | } | |
308 | ||
fab97220 | 309 | if (!ipz_rc) { |
e3722192 | 310 | ehca_err(ib_dev, "Cannot allocate page for queue. ipz_rc=%i", |
fab97220 HS |
311 | ipz_rc); |
312 | return -EBUSY; | |
313 | } | |
314 | ||
9a79fc0a JF |
315 | /* register queue pages */ |
316 | for (cnt = 0; cnt < nr_q_pages; cnt++) { | |
317 | vpage = ipz_qpageit_get_inc(queue); | |
fab97220 | 318 | if (!vpage) { |
9a79fc0a | 319 | ehca_err(ib_dev, "ipz_qpageit_get_inc() " |
fab97220 HS |
320 | "failed p_vpage= %p", vpage); |
321 | ret = -EINVAL; | |
9a79fc0a | 322 | goto init_qp_queue1; |
fab97220 | 323 | } |
b4b8d1e4 | 324 | rpage = __pa(vpage); |
fab97220 HS |
325 | |
326 | h_ret = hipz_h_register_rpage_qp(ipz_hca_handle, | |
327 | my_qp->ipz_qp_handle, | |
9a79fc0a | 328 | NULL, 0, q_type, |
e2f81daf | 329 | rpage, parms->is_small ? 0 : 1, |
fab97220 | 330 | my_qp->galpas.kernel); |
9a79fc0a JF |
331 | if (cnt == (nr_q_pages - 1)) { /* last page! */ |
332 | if (h_ret != expected_hret) { | |
333 | ehca_err(ib_dev, "hipz_qp_register_rpage() " | |
3750f605 | 334 | "h_ret=%lli", h_ret); |
fab97220 | 335 | ret = ehca2ib_return_code(h_ret); |
9a79fc0a | 336 | goto init_qp_queue1; |
fab97220 HS |
337 | } |
338 | vpage = ipz_qpageit_get_inc(&my_qp->ipz_rqueue); | |
339 | if (vpage) { | |
340 | ehca_err(ib_dev, "ipz_qpageit_get_inc() " | |
341 | "should not succeed vpage=%p", vpage); | |
342 | ret = -EINVAL; | |
9a79fc0a | 343 | goto init_qp_queue1; |
fab97220 HS |
344 | } |
345 | } else { | |
346 | if (h_ret != H_PAGE_REGISTERED) { | |
9a79fc0a | 347 | ehca_err(ib_dev, "hipz_qp_register_rpage() " |
3750f605 | 348 | "h_ret=%lli", h_ret); |
fab97220 | 349 | ret = ehca2ib_return_code(h_ret); |
9a79fc0a | 350 | goto init_qp_queue1; |
fab97220 HS |
351 | } |
352 | } | |
353 | } | |
354 | ||
9a79fc0a | 355 | ipz_qeit_reset(queue); |
fab97220 HS |
356 | |
357 | return 0; | |
358 | ||
9a79fc0a | 359 | init_qp_queue1: |
e2f81daf | 360 | ipz_queue_dtor(pd, queue); |
fab97220 HS |
361 | return ret; |
362 | } | |
363 | ||
e2f81daf SR |
364 | static inline int ehca_calc_wqe_size(int act_nr_sge, int is_llqp) |
365 | { | |
366 | if (is_llqp) | |
367 | return 128 << act_nr_sge; | |
368 | else | |
369 | return offsetof(struct ehca_wqe, | |
370 | u.nud.sg_list[act_nr_sge]); | |
371 | } | |
372 | ||
373 | static void ehca_determine_small_queue(struct ehca_alloc_queue_parms *queue, | |
374 | int req_nr_sge, int is_llqp) | |
375 | { | |
376 | u32 wqe_size, q_size; | |
377 | int act_nr_sge = req_nr_sge; | |
378 | ||
379 | if (!is_llqp) | |
380 | /* round up #SGEs so WQE size is a power of 2 */ | |
381 | for (act_nr_sge = 4; act_nr_sge <= 252; | |
382 | act_nr_sge = 4 + 2 * act_nr_sge) | |
383 | if (act_nr_sge >= req_nr_sge) | |
384 | break; | |
385 | ||
386 | wqe_size = ehca_calc_wqe_size(act_nr_sge, is_llqp); | |
387 | q_size = wqe_size * (queue->max_wr + 1); | |
388 | ||
389 | if (q_size <= 512) | |
390 | queue->page_size = 2; | |
391 | else if (q_size <= 1024) | |
392 | queue->page_size = 3; | |
393 | else | |
394 | queue->page_size = 0; | |
395 | ||
396 | queue->is_small = (queue->page_size != 0); | |
397 | } | |
398 | ||
b9012e0a AS |
399 | /* needs to be called with cq->spinlock held */ |
400 | void ehca_add_to_err_list(struct ehca_qp *qp, int on_sq) | |
401 | { | |
402 | struct list_head *list, *node; | |
403 | ||
404 | /* TODO: support low latency QPs */ | |
405 | if (qp->ext_type == EQPT_LLQP) | |
406 | return; | |
407 | ||
408 | if (on_sq) { | |
409 | list = &qp->send_cq->sqp_err_list; | |
410 | node = &qp->sq_err_node; | |
411 | } else { | |
412 | list = &qp->recv_cq->rqp_err_list; | |
413 | node = &qp->rq_err_node; | |
414 | } | |
415 | ||
416 | if (list_empty(node)) | |
417 | list_add_tail(node, list); | |
418 | ||
419 | return; | |
420 | } | |
421 | ||
422 | static void del_from_err_list(struct ehca_cq *cq, struct list_head *node) | |
423 | { | |
424 | unsigned long flags; | |
425 | ||
426 | spin_lock_irqsave(&cq->spinlock, flags); | |
427 | ||
428 | if (!list_empty(node)) | |
429 | list_del_init(node); | |
430 | ||
431 | spin_unlock_irqrestore(&cq->spinlock, flags); | |
432 | } | |
433 | ||
434 | static void reset_queue_map(struct ehca_queue_map *qmap) | |
435 | { | |
436 | int i; | |
437 | ||
7ec4f463 SR |
438 | qmap->tail = qmap->entries - 1; |
439 | qmap->left_to_poll = 0; | |
440 | qmap->next_wqe_idx = 0; | |
441 | for (i = 0; i < qmap->entries; i++) { | |
b9012e0a | 442 | qmap->map[i].reported = 1; |
7ec4f463 SR |
443 | qmap->map[i].cqe_req = 0; |
444 | } | |
b9012e0a AS |
445 | } |
446 | ||
a6a12947 JF |
447 | /* |
448 | * Create an ib_qp struct that is either a QP or an SRQ, depending on | |
449 | * the value of the is_srq parameter. If init_attr and srq_init_attr share | |
450 | * fields, the field out of init_attr is used. | |
451 | */ | |
0c10f7b7 JF |
452 | static struct ehca_qp *internal_create_qp( |
453 | struct ib_pd *pd, | |
454 | struct ib_qp_init_attr *init_attr, | |
455 | struct ib_srq_init_attr *srq_init_attr, | |
456 | struct ib_udata *udata, int is_srq) | |
fab97220 | 457 | { |
b9012e0a | 458 | struct ehca_qp *my_qp, *my_srq = NULL; |
fab97220 HS |
459 | struct ehca_pd *my_pd = container_of(pd, struct ehca_pd, ib_pd); |
460 | struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, | |
461 | ib_device); | |
462 | struct ib_ucontext *context = NULL; | |
463 | u64 h_ret; | |
1988d1fa | 464 | int is_llqp = 0, has_srq = 0, is_user = 0; |
9a79fc0a | 465 | int qp_type, max_send_sge, max_recv_sge, ret; |
fab97220 HS |
466 | |
467 | /* h_call's out parameters */ | |
468 | struct ehca_alloc_qp_parms parms; | |
a6a12947 | 469 | u32 swqe_size = 0, rwqe_size = 0, ib_qp_num; |
fab97220 HS |
470 | unsigned long flags; |
471 | ||
19f42821 | 472 | if (!atomic_add_unless(&shca->num_qps, 1, shca->max_num_qps)) { |
d227fa72 | 473 | ehca_err(pd->device, "Unable to create QP, max number of %i " |
19f42821 | 474 | "QPs reached.", shca->max_num_qps); |
d227fa72 SR |
475 | ehca_err(pd->device, "To increase the maximum number of QPs " |
476 | "use the number_of_qps module parameter.\n"); | |
477 | return ERR_PTR(-ENOSPC); | |
478 | } | |
479 | ||
480 | if (init_attr->create_flags) { | |
481 | atomic_dec(&shca->num_qps); | |
b846f25a | 482 | return ERR_PTR(-EINVAL); |
d227fa72 | 483 | } |
b846f25a | 484 | |
9a79fc0a JF |
485 | memset(&parms, 0, sizeof(parms)); |
486 | qp_type = init_attr->qp_type; | |
487 | ||
fab97220 HS |
488 | if (init_attr->sq_sig_type != IB_SIGNAL_REQ_WR && |
489 | init_attr->sq_sig_type != IB_SIGNAL_ALL_WR) { | |
490 | ehca_err(pd->device, "init_attr->sg_sig_type=%x not allowed", | |
491 | init_attr->sq_sig_type); | |
d227fa72 | 492 | atomic_dec(&shca->num_qps); |
fab97220 HS |
493 | return ERR_PTR(-EINVAL); |
494 | } | |
495 | ||
9a79fc0a JF |
496 | /* save LLQP info */ |
497 | if (qp_type & 0x80) { | |
498 | is_llqp = 1; | |
499 | parms.ext_type = EQPT_LLQP; | |
500 | parms.ll_comp_flags = qp_type & LLQP_COMP_MASK; | |
501 | } | |
502 | qp_type &= 0x1F; | |
472803da | 503 | init_attr->qp_type &= 0x1F; |
9a79fc0a | 504 | |
a6a12947 JF |
505 | /* handle SRQ base QPs */ |
506 | if (init_attr->srq) { | |
b9012e0a | 507 | my_srq = container_of(init_attr->srq, struct ehca_qp, ib_srq); |
a6a12947 | 508 | |
0540bbbe HNN |
509 | if (qp_type == IB_QPT_UC) { |
510 | ehca_err(pd->device, "UC with SRQ not supported"); | |
511 | atomic_dec(&shca->num_qps); | |
512 | return ERR_PTR(-EINVAL); | |
513 | } | |
514 | ||
a6a12947 JF |
515 | has_srq = 1; |
516 | parms.ext_type = EQPT_SRQBASE; | |
517 | parms.srq_qpn = my_srq->real_qp_num; | |
a6a12947 JF |
518 | } |
519 | ||
9a79fc0a JF |
520 | if (is_llqp && has_srq) { |
521 | ehca_err(pd->device, "LLQPs can't have an SRQ"); | |
d227fa72 | 522 | atomic_dec(&shca->num_qps); |
9a79fc0a JF |
523 | return ERR_PTR(-EINVAL); |
524 | } | |
525 | ||
a6a12947 JF |
526 | /* handle SRQs */ |
527 | if (is_srq) { | |
528 | parms.ext_type = EQPT_SRQ; | |
529 | parms.srq_limit = srq_init_attr->attr.srq_limit; | |
530 | if (init_attr->cap.max_recv_sge > 3) { | |
531 | ehca_err(pd->device, "no more than three SGEs " | |
532 | "supported for SRQ pd=%p max_sge=%x", | |
533 | pd, init_attr->cap.max_recv_sge); | |
d227fa72 | 534 | atomic_dec(&shca->num_qps); |
a6a12947 JF |
535 | return ERR_PTR(-EINVAL); |
536 | } | |
537 | } | |
538 | ||
9a79fc0a JF |
539 | /* check QP type */ |
540 | if (qp_type != IB_QPT_UD && | |
541 | qp_type != IB_QPT_UC && | |
542 | qp_type != IB_QPT_RC && | |
543 | qp_type != IB_QPT_SMI && | |
544 | qp_type != IB_QPT_GSI) { | |
545 | ehca_err(pd->device, "wrong QP Type=%x", qp_type); | |
d227fa72 | 546 | atomic_dec(&shca->num_qps); |
fab97220 HS |
547 | return ERR_PTR(-EINVAL); |
548 | } | |
9a79fc0a | 549 | |
472803da SR |
550 | if (is_llqp) { |
551 | switch (qp_type) { | |
552 | case IB_QPT_RC: | |
553 | if ((init_attr->cap.max_send_wr > 255) || | |
554 | (init_attr->cap.max_recv_wr > 255)) { | |
555 | ehca_err(pd->device, | |
556 | "Invalid Number of max_sq_wr=%x " | |
557 | "or max_rq_wr=%x for RC LLQP", | |
558 | init_attr->cap.max_send_wr, | |
559 | init_attr->cap.max_recv_wr); | |
d227fa72 | 560 | atomic_dec(&shca->num_qps); |
472803da SR |
561 | return ERR_PTR(-EINVAL); |
562 | } | |
563 | break; | |
564 | case IB_QPT_UD: | |
565 | if (!EHCA_BMASK_GET(HCA_CAP_UD_LL_QP, shca->hca_cap)) { | |
566 | ehca_err(pd->device, "UD LLQP not supported " | |
567 | "by this adapter"); | |
d227fa72 | 568 | atomic_dec(&shca->num_qps); |
472803da SR |
569 | return ERR_PTR(-ENOSYS); |
570 | } | |
571 | if (!(init_attr->cap.max_send_sge <= 5 | |
572 | && init_attr->cap.max_send_sge >= 1 | |
573 | && init_attr->cap.max_recv_sge <= 5 | |
574 | && init_attr->cap.max_recv_sge >= 1)) { | |
575 | ehca_err(pd->device, | |
576 | "Invalid Number of max_send_sge=%x " | |
577 | "or max_recv_sge=%x for UD LLQP", | |
578 | init_attr->cap.max_send_sge, | |
579 | init_attr->cap.max_recv_sge); | |
d227fa72 | 580 | atomic_dec(&shca->num_qps); |
472803da SR |
581 | return ERR_PTR(-EINVAL); |
582 | } else if (init_attr->cap.max_send_wr > 255) { | |
583 | ehca_err(pd->device, | |
584 | "Invalid Number of " | |
b708fba3 | 585 | "max_send_wr=%x for UD QP_TYPE=%x", |
472803da | 586 | init_attr->cap.max_send_wr, qp_type); |
d227fa72 | 587 | atomic_dec(&shca->num_qps); |
472803da SR |
588 | return ERR_PTR(-EINVAL); |
589 | } | |
590 | break; | |
591 | default: | |
592 | ehca_err(pd->device, "unsupported LL QP Type=%x", | |
593 | qp_type); | |
d227fa72 | 594 | atomic_dec(&shca->num_qps); |
472803da | 595 | return ERR_PTR(-EINVAL); |
472803da | 596 | } |
b708fba3 JF |
597 | } else { |
598 | int max_sge = (qp_type == IB_QPT_UD || qp_type == IB_QPT_SMI | |
599 | || qp_type == IB_QPT_GSI) ? 250 : 252; | |
600 | ||
601 | if (init_attr->cap.max_send_sge > max_sge | |
602 | || init_attr->cap.max_recv_sge > max_sge) { | |
603 | ehca_err(pd->device, "Invalid number of SGEs requested " | |
604 | "send_sge=%x recv_sge=%x max_sge=%x", | |
605 | init_attr->cap.max_send_sge, | |
606 | init_attr->cap.max_recv_sge, max_sge); | |
d227fa72 | 607 | atomic_dec(&shca->num_qps); |
b708fba3 JF |
608 | return ERR_PTR(-EINVAL); |
609 | } | |
fab97220 HS |
610 | } |
611 | ||
c3762229 | 612 | my_qp = kmem_cache_zalloc(qp_cache, GFP_KERNEL); |
fab97220 HS |
613 | if (!my_qp) { |
614 | ehca_err(pd->device, "pd=%p not enough memory to alloc qp", pd); | |
d227fa72 | 615 | atomic_dec(&shca->num_qps); |
fab97220 HS |
616 | return ERR_PTR(-ENOMEM); |
617 | } | |
618 | ||
1988d1fa SR |
619 | if (pd->uobject && udata) { |
620 | is_user = 1; | |
621 | context = pd->uobject->context; | |
622 | } | |
623 | ||
12137c59 SR |
624 | atomic_set(&my_qp->nr_events, 0); |
625 | init_waitqueue_head(&my_qp->wait_completion); | |
fab97220 HS |
626 | spin_lock_init(&my_qp->spinlock_s); |
627 | spin_lock_init(&my_qp->spinlock_r); | |
a6a12947 JF |
628 | my_qp->qp_type = qp_type; |
629 | my_qp->ext_type = parms.ext_type; | |
863fb09f | 630 | my_qp->state = IB_QPS_RESET; |
fab97220 | 631 | |
a6a12947 JF |
632 | if (init_attr->recv_cq) |
633 | my_qp->recv_cq = | |
634 | container_of(init_attr->recv_cq, struct ehca_cq, ib_cq); | |
635 | if (init_attr->send_cq) | |
636 | my_qp->send_cq = | |
637 | container_of(init_attr->send_cq, struct ehca_cq, ib_cq); | |
fab97220 | 638 | |
cbbbce1d TH |
639 | idr_preload(GFP_KERNEL); |
640 | write_lock_irqsave(&ehca_qp_idr_lock, flags); | |
fab97220 | 641 | |
cbbbce1d TH |
642 | ret = idr_alloc(&ehca_qp_idr, my_qp, 0, 0x2000000, GFP_NOWAIT); |
643 | if (ret >= 0) | |
644 | my_qp->token = ret; | |
fab97220 | 645 | |
cbbbce1d TH |
646 | write_unlock_irqrestore(&ehca_qp_idr_lock, flags); |
647 | idr_preload_end(); | |
648 | if (ret < 0) { | |
649 | if (ret == -ENOSPC) { | |
650 | ret = -EINVAL; | |
651 | ehca_err(pd->device, "Invalid number of qp"); | |
652 | } else { | |
653 | ret = -ENOMEM; | |
654 | ehca_err(pd->device, "Can't allocate new idr entry."); | |
655 | } | |
fab97220 HS |
656 | goto create_qp_exit0; |
657 | } | |
658 | ||
c0c84d56 JF |
659 | if (has_srq) |
660 | parms.srq_token = my_qp->token; | |
661 | ||
9a79fc0a | 662 | parms.servicetype = ibqptype2servicetype(qp_type); |
fab97220 HS |
663 | if (parms.servicetype < 0) { |
664 | ret = -EINVAL; | |
9a79fc0a | 665 | ehca_err(pd->device, "Invalid qp_type=%x", qp_type); |
5281a4b8 | 666 | goto create_qp_exit1; |
fab97220 HS |
667 | } |
668 | ||
2ec8e662 JF |
669 | /* Always signal by WQE so we can hide circ. WQEs */ |
670 | parms.sigtype = HCALL_SIGT_BY_WQE; | |
fab97220 HS |
671 | |
672 | /* UD_AV CIRCUMVENTION */ | |
673 | max_send_sge = init_attr->cap.max_send_sge; | |
674 | max_recv_sge = init_attr->cap.max_recv_sge; | |
472803da | 675 | if (parms.servicetype == ST_UD && !is_llqp) { |
fab97220 HS |
676 | max_send_sge += 2; |
677 | max_recv_sge += 2; | |
678 | } | |
679 | ||
9a79fc0a JF |
680 | parms.token = my_qp->token; |
681 | parms.eq_handle = shca->eq.ipz_eq_handle; | |
fab97220 | 682 | parms.pd = my_pd->fw_pd; |
a6a12947 JF |
683 | if (my_qp->send_cq) |
684 | parms.send_cq_handle = my_qp->send_cq->ipz_cq_handle; | |
685 | if (my_qp->recv_cq) | |
686 | parms.recv_cq_handle = my_qp->recv_cq->ipz_cq_handle; | |
fab97220 | 687 | |
e2f81daf SR |
688 | parms.squeue.max_wr = init_attr->cap.max_send_wr; |
689 | parms.rqueue.max_wr = init_attr->cap.max_recv_wr; | |
690 | parms.squeue.max_sge = max_send_sge; | |
691 | parms.rqueue.max_sge = max_recv_sge; | |
692 | ||
2ec8e662 JF |
693 | /* RC QPs need one more SWQE for unsolicited ack circumvention */ |
694 | if (qp_type == IB_QPT_RC) | |
695 | parms.squeue.max_wr++; | |
696 | ||
441633b9 | 697 | if (EHCA_BMASK_GET(HCA_CAP_MINI_QP, shca->hca_cap)) { |
fecea0ab SR |
698 | if (HAS_SQ(my_qp)) |
699 | ehca_determine_small_queue( | |
700 | &parms.squeue, max_send_sge, is_llqp); | |
701 | if (HAS_RQ(my_qp)) | |
702 | ehca_determine_small_queue( | |
703 | &parms.rqueue, max_recv_sge, is_llqp); | |
e2f81daf SR |
704 | parms.qp_storage = |
705 | (parms.squeue.is_small || parms.rqueue.is_small); | |
706 | } | |
fab97220 | 707 | |
1988d1fa | 708 | h_ret = hipz_h_alloc_resource_qp(shca->ipz_hca_handle, &parms, is_user); |
fab97220 | 709 | if (h_ret != H_SUCCESS) { |
3750f605 | 710 | ehca_err(pd->device, "h_alloc_resource_qp() failed h_ret=%lli", |
fab97220 HS |
711 | h_ret); |
712 | ret = ehca2ib_return_code(h_ret); | |
713 | goto create_qp_exit1; | |
714 | } | |
715 | ||
a6a12947 | 716 | ib_qp_num = my_qp->real_qp_num = parms.real_qp_num; |
9a79fc0a JF |
717 | my_qp->ipz_qp_handle = parms.qp_handle; |
718 | my_qp->galpas = parms.galpas; | |
c55a0ddd | 719 | |
e2f81daf SR |
720 | swqe_size = ehca_calc_wqe_size(parms.squeue.act_nr_sges, is_llqp); |
721 | rwqe_size = ehca_calc_wqe_size(parms.rqueue.act_nr_sges, is_llqp); | |
722 | ||
9a79fc0a | 723 | switch (qp_type) { |
fab97220 | 724 | case IB_QPT_RC: |
e2f81daf SR |
725 | if (is_llqp) { |
726 | parms.squeue.act_nr_sges = 1; | |
727 | parms.rqueue.act_nr_sges = 1; | |
fab97220 | 728 | } |
2ec8e662 JF |
729 | /* hide the extra WQE */ |
730 | parms.squeue.act_nr_wqes--; | |
fab97220 | 731 | break; |
fab97220 HS |
732 | case IB_QPT_UD: |
733 | case IB_QPT_GSI: | |
734 | case IB_QPT_SMI: | |
e2f81daf | 735 | /* UD circumvention */ |
9a79fc0a | 736 | if (is_llqp) { |
e2f81daf SR |
737 | parms.squeue.act_nr_sges = 1; |
738 | parms.rqueue.act_nr_sges = 1; | |
fab97220 | 739 | } else { |
e2f81daf SR |
740 | parms.squeue.act_nr_sges -= 2; |
741 | parms.rqueue.act_nr_sges -= 2; | |
fab97220 HS |
742 | } |
743 | ||
9a79fc0a | 744 | if (IB_QPT_GSI == qp_type || IB_QPT_SMI == qp_type) { |
e2f81daf SR |
745 | parms.squeue.act_nr_wqes = init_attr->cap.max_send_wr; |
746 | parms.rqueue.act_nr_wqes = init_attr->cap.max_recv_wr; | |
747 | parms.squeue.act_nr_sges = init_attr->cap.max_send_sge; | |
748 | parms.rqueue.act_nr_sges = init_attr->cap.max_recv_sge; | |
a6a12947 | 749 | ib_qp_num = (qp_type == IB_QPT_SMI) ? 0 : 1; |
fab97220 HS |
750 | } |
751 | ||
752 | break; | |
753 | ||
754 | default: | |
755 | break; | |
756 | } | |
757 | ||
9a79fc0a | 758 | /* initialize r/squeue and register queue pages */ |
a6a12947 JF |
759 | if (HAS_SQ(my_qp)) { |
760 | ret = init_qp_queue( | |
e2f81daf | 761 | shca, my_pd, my_qp, &my_qp->ipz_squeue, 0, |
a6a12947 | 762 | HAS_RQ(my_qp) ? H_PAGE_REGISTERED : H_SUCCESS, |
e2f81daf | 763 | &parms.squeue, swqe_size); |
a6a12947 JF |
764 | if (ret) { |
765 | ehca_err(pd->device, "Couldn't initialize squeue " | |
e3722192 | 766 | "and pages ret=%i", ret); |
a6a12947 JF |
767 | goto create_qp_exit2; |
768 | } | |
b9012e0a | 769 | |
1988d1fa SR |
770 | if (!is_user) { |
771 | my_qp->sq_map.entries = my_qp->ipz_squeue.queue_length / | |
772 | my_qp->ipz_squeue.qe_size; | |
773 | my_qp->sq_map.map = vmalloc(my_qp->sq_map.entries * | |
774 | sizeof(struct ehca_qmap_entry)); | |
775 | if (!my_qp->sq_map.map) { | |
776 | ehca_err(pd->device, "Couldn't allocate squeue " | |
777 | "map ret=%i", ret); | |
778 | goto create_qp_exit3; | |
779 | } | |
780 | INIT_LIST_HEAD(&my_qp->sq_err_node); | |
781 | /* to avoid the generation of bogus flush CQEs */ | |
782 | reset_queue_map(&my_qp->sq_map); | |
6773f079 | 783 | } |
fab97220 HS |
784 | } |
785 | ||
a6a12947 JF |
786 | if (HAS_RQ(my_qp)) { |
787 | ret = init_qp_queue( | |
e2f81daf SR |
788 | shca, my_pd, my_qp, &my_qp->ipz_rqueue, 1, |
789 | H_SUCCESS, &parms.rqueue, rwqe_size); | |
a6a12947 JF |
790 | if (ret) { |
791 | ehca_err(pd->device, "Couldn't initialize rqueue " | |
e3722192 | 792 | "and pages ret=%i", ret); |
6773f079 | 793 | goto create_qp_exit4; |
a6a12947 | 794 | } |
1988d1fa SR |
795 | if (!is_user) { |
796 | my_qp->rq_map.entries = my_qp->ipz_rqueue.queue_length / | |
797 | my_qp->ipz_rqueue.qe_size; | |
798 | my_qp->rq_map.map = vmalloc(my_qp->rq_map.entries * | |
799 | sizeof(struct ehca_qmap_entry)); | |
800 | if (!my_qp->rq_map.map) { | |
801 | ehca_err(pd->device, "Couldn't allocate squeue " | |
802 | "map ret=%i", ret); | |
803 | goto create_qp_exit5; | |
804 | } | |
805 | INIT_LIST_HEAD(&my_qp->rq_err_node); | |
806 | /* to avoid the generation of bogus flush CQEs */ | |
807 | reset_queue_map(&my_qp->rq_map); | |
b9012e0a | 808 | } |
1988d1fa | 809 | } else if (init_attr->srq && !is_user) { |
b9012e0a AS |
810 | /* this is a base QP, use the queue map of the SRQ */ |
811 | my_qp->rq_map = my_srq->rq_map; | |
812 | INIT_LIST_HEAD(&my_qp->rq_err_node); | |
813 | ||
814 | my_qp->ipz_rqueue = my_srq->ipz_rqueue; | |
9a79fc0a JF |
815 | } |
816 | ||
a6a12947 JF |
817 | if (is_srq) { |
818 | my_qp->ib_srq.pd = &my_pd->ib_pd; | |
819 | my_qp->ib_srq.device = my_pd->ib_pd.device; | |
fab97220 | 820 | |
a6a12947 JF |
821 | my_qp->ib_srq.srq_context = init_attr->qp_context; |
822 | my_qp->ib_srq.event_handler = init_attr->event_handler; | |
823 | } else { | |
824 | my_qp->ib_qp.qp_num = ib_qp_num; | |
825 | my_qp->ib_qp.pd = &my_pd->ib_pd; | |
826 | my_qp->ib_qp.device = my_pd->ib_pd.device; | |
827 | ||
828 | my_qp->ib_qp.recv_cq = init_attr->recv_cq; | |
829 | my_qp->ib_qp.send_cq = init_attr->send_cq; | |
fab97220 | 830 | |
a6a12947 JF |
831 | my_qp->ib_qp.qp_type = qp_type; |
832 | my_qp->ib_qp.srq = init_attr->srq; | |
fab97220 | 833 | |
a6a12947 JF |
834 | my_qp->ib_qp.qp_context = init_attr->qp_context; |
835 | my_qp->ib_qp.event_handler = init_attr->event_handler; | |
836 | } | |
fab97220 HS |
837 | |
838 | init_attr->cap.max_inline_data = 0; /* not supported yet */ | |
e2f81daf SR |
839 | init_attr->cap.max_recv_sge = parms.rqueue.act_nr_sges; |
840 | init_attr->cap.max_recv_wr = parms.rqueue.act_nr_wqes; | |
841 | init_attr->cap.max_send_sge = parms.squeue.act_nr_sges; | |
842 | init_attr->cap.max_send_wr = parms.squeue.act_nr_wqes; | |
9a79fc0a | 843 | my_qp->init_attr = *init_attr; |
fab97220 | 844 | |
bbdd267e HNN |
845 | if (qp_type == IB_QPT_SMI || qp_type == IB_QPT_GSI) { |
846 | shca->sport[init_attr->port_num - 1].ibqp_sqp[qp_type] = | |
847 | &my_qp->ib_qp; | |
848 | if (ehca_nr_ports < 0) { | |
849 | /* alloc array to cache subsequent modify qp parms | |
850 | * for autodetect mode | |
851 | */ | |
852 | my_qp->mod_qp_parm = | |
853 | kzalloc(EHCA_MOD_QP_PARM_MAX * | |
854 | sizeof(*my_qp->mod_qp_parm), | |
855 | GFP_KERNEL); | |
856 | if (!my_qp->mod_qp_parm) { | |
857 | ehca_err(pd->device, | |
858 | "Could not alloc mod_qp_parm"); | |
6773f079 | 859 | goto create_qp_exit5; |
bbdd267e HNN |
860 | } |
861 | } | |
862 | } | |
863 | ||
fab97220 | 864 | /* NOTE: define_apq0() not supported yet */ |
9a79fc0a | 865 | if (qp_type == IB_QPT_GSI) { |
fab97220 HS |
866 | h_ret = ehca_define_sqp(shca, my_qp, init_attr); |
867 | if (h_ret != H_SUCCESS) { | |
fad96ab6 SR |
868 | kfree(my_qp->mod_qp_parm); |
869 | my_qp->mod_qp_parm = NULL; | |
870 | /* the QP pointer is no longer valid */ | |
871 | shca->sport[init_attr->port_num - 1].ibqp_sqp[qp_type] = | |
872 | NULL; | |
fab97220 | 873 | ret = ehca2ib_return_code(h_ret); |
6773f079 | 874 | goto create_qp_exit6; |
fab97220 HS |
875 | } |
876 | } | |
a6a12947 JF |
877 | |
878 | if (my_qp->send_cq) { | |
879 | ret = ehca_cq_assign_qp(my_qp->send_cq, my_qp); | |
fab97220 | 880 | if (ret) { |
2b94397a | 881 | ehca_err(pd->device, |
e3722192 | 882 | "Couldn't assign qp to send_cq ret=%i", ret); |
b9012e0a | 883 | goto create_qp_exit7; |
fab97220 | 884 | } |
fab97220 | 885 | } |
a6a12947 | 886 | |
fab97220 HS |
887 | /* copy queues, galpa data to user space */ |
888 | if (context && udata) { | |
fab97220 | 889 | struct ehca_create_qp_resp resp; |
fab97220 HS |
890 | memset(&resp, 0, sizeof(resp)); |
891 | ||
892 | resp.qp_num = my_qp->real_qp_num; | |
893 | resp.token = my_qp->token; | |
894 | resp.qp_type = my_qp->qp_type; | |
a6a12947 | 895 | resp.ext_type = my_qp->ext_type; |
fab97220 HS |
896 | resp.qkey = my_qp->qkey; |
897 | resp.real_qp_num = my_qp->real_qp_num; | |
441633b9 | 898 | |
a6a12947 JF |
899 | if (HAS_SQ(my_qp)) |
900 | queue2resp(&resp.ipz_squeue, &my_qp->ipz_squeue); | |
901 | if (HAS_RQ(my_qp)) | |
902 | queue2resp(&resp.ipz_rqueue, &my_qp->ipz_rqueue); | |
e390d3b5 HNN |
903 | resp.fw_handle_ofs = (u32) |
904 | (my_qp->galpas.user.fw_handle & (PAGE_SIZE - 1)); | |
a6a12947 | 905 | |
fab97220 HS |
906 | if (ib_copy_to_udata(udata, &resp, sizeof resp)) { |
907 | ehca_err(pd->device, "Copy to udata failed"); | |
908 | ret = -EINVAL; | |
b9012e0a | 909 | goto create_qp_exit8; |
fab97220 HS |
910 | } |
911 | } | |
912 | ||
a6a12947 | 913 | return my_qp; |
fab97220 | 914 | |
b9012e0a | 915 | create_qp_exit8: |
0c86e280 HNN |
916 | ehca_cq_unassign_qp(my_qp->send_cq, my_qp->real_qp_num); |
917 | ||
b9012e0a | 918 | create_qp_exit7: |
bbdd267e HNN |
919 | kfree(my_qp->mod_qp_parm); |
920 | ||
b9012e0a | 921 | create_qp_exit6: |
1988d1fa | 922 | if (HAS_RQ(my_qp) && !is_user) |
b9012e0a AS |
923 | vfree(my_qp->rq_map.map); |
924 | ||
6773f079 | 925 | create_qp_exit5: |
a6a12947 | 926 | if (HAS_RQ(my_qp)) |
e2f81daf | 927 | ipz_queue_dtor(my_pd, &my_qp->ipz_rqueue); |
9a79fc0a | 928 | |
6773f079 | 929 | create_qp_exit4: |
1988d1fa | 930 | if (HAS_SQ(my_qp) && !is_user) |
b9012e0a | 931 | vfree(my_qp->sq_map.map); |
6773f079 | 932 | |
9a79fc0a | 933 | create_qp_exit3: |
a6a12947 | 934 | if (HAS_SQ(my_qp)) |
e2f81daf | 935 | ipz_queue_dtor(my_pd, &my_qp->ipz_squeue); |
fab97220 HS |
936 | |
937 | create_qp_exit2: | |
938 | hipz_h_destroy_qp(shca->ipz_hca_handle, my_qp); | |
939 | ||
940 | create_qp_exit1: | |
26ed687f | 941 | write_lock_irqsave(&ehca_qp_idr_lock, flags); |
fab97220 | 942 | idr_remove(&ehca_qp_idr, my_qp->token); |
26ed687f | 943 | write_unlock_irqrestore(&ehca_qp_idr_lock, flags); |
fab97220 HS |
944 | |
945 | create_qp_exit0: | |
946 | kmem_cache_free(qp_cache, my_qp); | |
d227fa72 | 947 | atomic_dec(&shca->num_qps); |
fab97220 HS |
948 | return ERR_PTR(ret); |
949 | } | |
950 | ||
a6a12947 JF |
951 | struct ib_qp *ehca_create_qp(struct ib_pd *pd, |
952 | struct ib_qp_init_attr *qp_init_attr, | |
953 | struct ib_udata *udata) | |
954 | { | |
955 | struct ehca_qp *ret; | |
956 | ||
957 | ret = internal_create_qp(pd, qp_init_attr, NULL, udata, 0); | |
2b94397a | 958 | return IS_ERR(ret) ? (struct ib_qp *)ret : &ret->ib_qp; |
a6a12947 JF |
959 | } |
960 | ||
0c10f7b7 JF |
961 | static int internal_destroy_qp(struct ib_device *dev, struct ehca_qp *my_qp, |
962 | struct ib_uobject *uobject); | |
a6a12947 JF |
963 | |
964 | struct ib_srq *ehca_create_srq(struct ib_pd *pd, | |
965 | struct ib_srq_init_attr *srq_init_attr, | |
966 | struct ib_udata *udata) | |
967 | { | |
968 | struct ib_qp_init_attr qp_init_attr; | |
969 | struct ehca_qp *my_qp; | |
970 | struct ib_srq *ret; | |
971 | struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, | |
972 | ib_device); | |
973 | struct hcp_modify_qp_control_block *mqpcb; | |
974 | u64 hret, update_mask; | |
975 | ||
96104eda SH |
976 | if (srq_init_attr->srq_type != IB_SRQT_BASIC) |
977 | return ERR_PTR(-ENOSYS); | |
978 | ||
a6a12947 JF |
979 | /* For common attributes, internal_create_qp() takes its info |
980 | * out of qp_init_attr, so copy all common attrs there. | |
981 | */ | |
982 | memset(&qp_init_attr, 0, sizeof(qp_init_attr)); | |
983 | qp_init_attr.event_handler = srq_init_attr->event_handler; | |
984 | qp_init_attr.qp_context = srq_init_attr->srq_context; | |
985 | qp_init_attr.sq_sig_type = IB_SIGNAL_ALL_WR; | |
986 | qp_init_attr.qp_type = IB_QPT_RC; | |
987 | qp_init_attr.cap.max_recv_wr = srq_init_attr->attr.max_wr; | |
988 | qp_init_attr.cap.max_recv_sge = srq_init_attr->attr.max_sge; | |
989 | ||
990 | my_qp = internal_create_qp(pd, &qp_init_attr, srq_init_attr, udata, 1); | |
991 | if (IS_ERR(my_qp)) | |
2b94397a | 992 | return (struct ib_srq *)my_qp; |
a6a12947 JF |
993 | |
994 | /* copy back return values */ | |
995 | srq_init_attr->attr.max_wr = qp_init_attr.cap.max_recv_wr; | |
1457edc7 | 996 | srq_init_attr->attr.max_sge = 3; |
a6a12947 JF |
997 | |
998 | /* drive SRQ into RTR state */ | |
999 | mqpcb = ehca_alloc_fw_ctrlblock(GFP_KERNEL); | |
1000 | if (!mqpcb) { | |
1001 | ehca_err(pd->device, "Could not get zeroed page for mqpcb " | |
1002 | "ehca_qp=%p qp_num=%x ", my_qp, my_qp->real_qp_num); | |
1003 | ret = ERR_PTR(-ENOMEM); | |
1004 | goto create_srq1; | |
1005 | } | |
1006 | ||
1007 | mqpcb->qp_state = EHCA_QPS_INIT; | |
1008 | mqpcb->prim_phys_port = 1; | |
1009 | update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_STATE, 1); | |
1010 | hret = hipz_h_modify_qp(shca->ipz_hca_handle, | |
1011 | my_qp->ipz_qp_handle, | |
1012 | &my_qp->pf, | |
1013 | update_mask, | |
1014 | mqpcb, my_qp->galpas.kernel); | |
1015 | if (hret != H_SUCCESS) { | |
908cf9a5 | 1016 | ehca_err(pd->device, "Could not modify SRQ to INIT " |
3750f605 | 1017 | "ehca_qp=%p qp_num=%x h_ret=%lli", |
a6a12947 JF |
1018 | my_qp, my_qp->real_qp_num, hret); |
1019 | goto create_srq2; | |
1020 | } | |
1021 | ||
1022 | mqpcb->qp_enable = 1; | |
1023 | update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_ENABLE, 1); | |
1024 | hret = hipz_h_modify_qp(shca->ipz_hca_handle, | |
1025 | my_qp->ipz_qp_handle, | |
1026 | &my_qp->pf, | |
1027 | update_mask, | |
1028 | mqpcb, my_qp->galpas.kernel); | |
1029 | if (hret != H_SUCCESS) { | |
908cf9a5 | 1030 | ehca_err(pd->device, "Could not enable SRQ " |
3750f605 | 1031 | "ehca_qp=%p qp_num=%x h_ret=%lli", |
a6a12947 JF |
1032 | my_qp, my_qp->real_qp_num, hret); |
1033 | goto create_srq2; | |
1034 | } | |
1035 | ||
1036 | mqpcb->qp_state = EHCA_QPS_RTR; | |
1037 | update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_STATE, 1); | |
1038 | hret = hipz_h_modify_qp(shca->ipz_hca_handle, | |
1039 | my_qp->ipz_qp_handle, | |
1040 | &my_qp->pf, | |
1041 | update_mask, | |
1042 | mqpcb, my_qp->galpas.kernel); | |
1043 | if (hret != H_SUCCESS) { | |
908cf9a5 | 1044 | ehca_err(pd->device, "Could not modify SRQ to RTR " |
3750f605 | 1045 | "ehca_qp=%p qp_num=%x h_ret=%lli", |
a6a12947 JF |
1046 | my_qp, my_qp->real_qp_num, hret); |
1047 | goto create_srq2; | |
1048 | } | |
1049 | ||
03f72a51 HNN |
1050 | ehca_free_fw_ctrlblock(mqpcb); |
1051 | ||
a6a12947 JF |
1052 | return &my_qp->ib_srq; |
1053 | ||
1054 | create_srq2: | |
1055 | ret = ERR_PTR(ehca2ib_return_code(hret)); | |
1056 | ehca_free_fw_ctrlblock(mqpcb); | |
1057 | ||
1058 | create_srq1: | |
1059 | internal_destroy_qp(pd->device, my_qp, my_qp->ib_srq.uobject); | |
1060 | ||
1061 | return ret; | |
1062 | } | |
1063 | ||
fab97220 HS |
1064 | /* |
1065 | * prepare_sqe_rts called by internal_modify_qp() at trans sqe -> rts | |
1066 | * set purge bit of bad wqe and subsequent wqes to avoid reentering sqe | |
1067 | * returns total number of bad wqes in bad_wqe_cnt | |
1068 | */ | |
1069 | static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca, | |
1070 | int *bad_wqe_cnt) | |
1071 | { | |
1072 | u64 h_ret; | |
1073 | struct ipz_queue *squeue; | |
1074 | void *bad_send_wqe_p, *bad_send_wqe_v; | |
2771e9ed | 1075 | u64 q_ofs; |
fab97220 HS |
1076 | struct ehca_wqe *wqe; |
1077 | int qp_num = my_qp->ib_qp.qp_num; | |
1078 | ||
1079 | /* get send wqe pointer */ | |
1080 | h_ret = hipz_h_disable_and_get_wqe(shca->ipz_hca_handle, | |
1081 | my_qp->ipz_qp_handle, &my_qp->pf, | |
1082 | &bad_send_wqe_p, NULL, 2); | |
1083 | if (h_ret != H_SUCCESS) { | |
1084 | ehca_err(&shca->ib_device, "hipz_h_disable_and_get_wqe() failed" | |
3750f605 | 1085 | " ehca_qp=%p qp_num=%x h_ret=%lli", |
fab97220 HS |
1086 | my_qp, qp_num, h_ret); |
1087 | return ehca2ib_return_code(h_ret); | |
1088 | } | |
2b94397a | 1089 | bad_send_wqe_p = (void *)((u64)bad_send_wqe_p & (~(1L << 63))); |
fab97220 HS |
1090 | ehca_dbg(&shca->ib_device, "qp_num=%x bad_send_wqe_p=%p", |
1091 | qp_num, bad_send_wqe_p); | |
1092 | /* convert wqe pointer to vadr */ | |
b4b8d1e4 | 1093 | bad_send_wqe_v = __va((u64)bad_send_wqe_p); |
4da27d6d | 1094 | if (ehca_debug_level >= 2) |
fab97220 HS |
1095 | ehca_dmp(bad_send_wqe_v, 32, "qp_num=%x bad_wqe", qp_num); |
1096 | squeue = &my_qp->ipz_squeue; | |
2771e9ed HNN |
1097 | if (ipz_queue_abs_to_offset(squeue, (u64)bad_send_wqe_p, &q_ofs)) { |
1098 | ehca_err(&shca->ib_device, "failed to get wqe offset qp_num=%x" | |
1099 | " bad_send_wqe_p=%p", qp_num, bad_send_wqe_p); | |
1100 | return -EFAULT; | |
1101 | } | |
fab97220 HS |
1102 | |
1103 | /* loop sets wqe's purge bit */ | |
2b94397a | 1104 | wqe = (struct ehca_wqe *)ipz_qeit_calc(squeue, q_ofs); |
fab97220 HS |
1105 | *bad_wqe_cnt = 0; |
1106 | while (wqe->optype != 0xff && wqe->wqef != 0xff) { | |
4da27d6d | 1107 | if (ehca_debug_level >= 2) |
fab97220 HS |
1108 | ehca_dmp(wqe, 32, "qp_num=%x wqe", qp_num); |
1109 | wqe->nr_of_data_seg = 0; /* suppress data access */ | |
1110 | wqe->wqef = WQEF_PURGE; /* WQE to be purged */ | |
2771e9ed | 1111 | q_ofs = ipz_queue_advance_offset(squeue, q_ofs); |
2b94397a | 1112 | wqe = (struct ehca_wqe *)ipz_qeit_calc(squeue, q_ofs); |
fab97220 | 1113 | *bad_wqe_cnt = (*bad_wqe_cnt)+1; |
fab97220 HS |
1114 | } |
1115 | /* | |
1116 | * bad wqe will be reprocessed and ignored when pol_cq() is called, | |
1117 | * i.e. nr of wqes with flush error status is one less | |
1118 | */ | |
1119 | ehca_dbg(&shca->ib_device, "qp_num=%x flusherr_wqe_cnt=%x", | |
1120 | qp_num, (*bad_wqe_cnt)-1); | |
1121 | wqe->wqef = 0; | |
1122 | ||
1123 | return 0; | |
1124 | } | |
1125 | ||
b9012e0a AS |
1126 | static int calc_left_cqes(u64 wqe_p, struct ipz_queue *ipz_queue, |
1127 | struct ehca_queue_map *qmap) | |
1128 | { | |
1129 | void *wqe_v; | |
1130 | u64 q_ofs; | |
1131 | u32 wqe_idx; | |
7ec4f463 | 1132 | unsigned int tail_idx; |
b9012e0a AS |
1133 | |
1134 | /* convert real to abs address */ | |
1135 | wqe_p = wqe_p & (~(1UL << 63)); | |
1136 | ||
b4b8d1e4 | 1137 | wqe_v = __va(wqe_p); |
b9012e0a AS |
1138 | |
1139 | if (ipz_queue_abs_to_offset(ipz_queue, wqe_p, &q_ofs)) { | |
1140 | ehca_gen_err("Invalid offset for calculating left cqes " | |
3750f605 | 1141 | "wqe_p=%#llx wqe_v=%p\n", wqe_p, wqe_v); |
b9012e0a AS |
1142 | return -EFAULT; |
1143 | } | |
1144 | ||
1c721940 | 1145 | tail_idx = next_index(qmap->tail, qmap->entries); |
b9012e0a | 1146 | wqe_idx = q_ofs / ipz_queue->qe_size; |
b9012e0a | 1147 | |
7ec4f463 SR |
1148 | /* check all processed wqes, whether a cqe is requested or not */ |
1149 | while (tail_idx != wqe_idx) { | |
1150 | if (qmap->map[tail_idx].cqe_req) | |
1151 | qmap->left_to_poll++; | |
1c721940 | 1152 | tail_idx = next_index(tail_idx, qmap->entries); |
7ec4f463 SR |
1153 | } |
1154 | /* save index in queue, where we have to start flushing */ | |
1155 | qmap->next_wqe_idx = wqe_idx; | |
b9012e0a AS |
1156 | return 0; |
1157 | } | |
1158 | ||
1159 | static int check_for_left_cqes(struct ehca_qp *my_qp, struct ehca_shca *shca) | |
1160 | { | |
1161 | u64 h_ret; | |
1162 | void *send_wqe_p, *recv_wqe_p; | |
1163 | int ret; | |
1164 | unsigned long flags; | |
1165 | int qp_num = my_qp->ib_qp.qp_num; | |
1166 | ||
1167 | /* this hcall is not supported on base QPs */ | |
1168 | if (my_qp->ext_type != EQPT_SRQBASE) { | |
1169 | /* get send and receive wqe pointer */ | |
1170 | h_ret = hipz_h_disable_and_get_wqe(shca->ipz_hca_handle, | |
1171 | my_qp->ipz_qp_handle, &my_qp->pf, | |
1172 | &send_wqe_p, &recv_wqe_p, 4); | |
1173 | if (h_ret != H_SUCCESS) { | |
1174 | ehca_err(&shca->ib_device, "disable_and_get_wqe() " | |
3750f605 | 1175 | "failed ehca_qp=%p qp_num=%x h_ret=%lli", |
b9012e0a AS |
1176 | my_qp, qp_num, h_ret); |
1177 | return ehca2ib_return_code(h_ret); | |
1178 | } | |
1179 | ||
1180 | /* | |
1181 | * acquire lock to ensure that nobody is polling the cq which | |
1182 | * could mean that the qmap->tail pointer is in an | |
1183 | * inconsistent state. | |
1184 | */ | |
1185 | spin_lock_irqsave(&my_qp->send_cq->spinlock, flags); | |
1186 | ret = calc_left_cqes((u64)send_wqe_p, &my_qp->ipz_squeue, | |
1187 | &my_qp->sq_map); | |
1188 | spin_unlock_irqrestore(&my_qp->send_cq->spinlock, flags); | |
1189 | if (ret) | |
1190 | return ret; | |
1191 | ||
1192 | ||
1193 | spin_lock_irqsave(&my_qp->recv_cq->spinlock, flags); | |
1194 | ret = calc_left_cqes((u64)recv_wqe_p, &my_qp->ipz_rqueue, | |
1195 | &my_qp->rq_map); | |
1196 | spin_unlock_irqrestore(&my_qp->recv_cq->spinlock, flags); | |
1197 | if (ret) | |
1198 | return ret; | |
1199 | } else { | |
1200 | spin_lock_irqsave(&my_qp->send_cq->spinlock, flags); | |
1201 | my_qp->sq_map.left_to_poll = 0; | |
1c721940 SR |
1202 | my_qp->sq_map.next_wqe_idx = next_index(my_qp->sq_map.tail, |
1203 | my_qp->sq_map.entries); | |
b9012e0a AS |
1204 | spin_unlock_irqrestore(&my_qp->send_cq->spinlock, flags); |
1205 | ||
1206 | spin_lock_irqsave(&my_qp->recv_cq->spinlock, flags); | |
1207 | my_qp->rq_map.left_to_poll = 0; | |
1c721940 SR |
1208 | my_qp->rq_map.next_wqe_idx = next_index(my_qp->rq_map.tail, |
1209 | my_qp->rq_map.entries); | |
b9012e0a AS |
1210 | spin_unlock_irqrestore(&my_qp->recv_cq->spinlock, flags); |
1211 | } | |
1212 | ||
1213 | /* this assures flush cqes being generated only for pending wqes */ | |
1214 | if ((my_qp->sq_map.left_to_poll == 0) && | |
1215 | (my_qp->rq_map.left_to_poll == 0)) { | |
1216 | spin_lock_irqsave(&my_qp->send_cq->spinlock, flags); | |
1217 | ehca_add_to_err_list(my_qp, 1); | |
1218 | spin_unlock_irqrestore(&my_qp->send_cq->spinlock, flags); | |
1219 | ||
1220 | if (HAS_RQ(my_qp)) { | |
1221 | spin_lock_irqsave(&my_qp->recv_cq->spinlock, flags); | |
1222 | ehca_add_to_err_list(my_qp, 0); | |
1223 | spin_unlock_irqrestore(&my_qp->recv_cq->spinlock, | |
1224 | flags); | |
1225 | } | |
1226 | } | |
1227 | ||
1228 | return 0; | |
1229 | } | |
1230 | ||
fab97220 HS |
1231 | /* |
1232 | * internal_modify_qp with circumvention to handle aqp0 properly | |
1233 | * smi_reset2init indicates if this is an internal reset-to-init-call for | |
1234 | * smi. This flag must always be zero if called from ehca_modify_qp()! | |
1235 | * This internal func was intorduced to avoid recursion of ehca_modify_qp()! | |
1236 | */ | |
1237 | static int internal_modify_qp(struct ib_qp *ibqp, | |
1238 | struct ib_qp_attr *attr, | |
1239 | int attr_mask, int smi_reset2init) | |
1240 | { | |
1241 | enum ib_qp_state qp_cur_state, qp_new_state; | |
1242 | int cnt, qp_attr_idx, ret = 0; | |
1243 | enum ib_qp_statetrans statetrans; | |
1244 | struct hcp_modify_qp_control_block *mqpcb; | |
1245 | struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp); | |
1246 | struct ehca_shca *shca = | |
1247 | container_of(ibqp->pd->device, struct ehca_shca, ib_device); | |
1248 | u64 update_mask; | |
1249 | u64 h_ret; | |
1250 | int bad_wqe_cnt = 0; | |
1988d1fa | 1251 | int is_user = 0; |
fab97220 | 1252 | int squeue_locked = 0; |
9844b71b | 1253 | unsigned long flags = 0; |
fab97220 HS |
1254 | |
1255 | /* do query_qp to obtain current attr values */ | |
bbdd267e | 1256 | mqpcb = ehca_alloc_fw_ctrlblock(GFP_ATOMIC); |
7e28db5d | 1257 | if (!mqpcb) { |
fab97220 HS |
1258 | ehca_err(ibqp->device, "Could not get zeroed page for mqpcb " |
1259 | "ehca_qp=%p qp_num=%x ", my_qp, ibqp->qp_num); | |
1260 | return -ENOMEM; | |
1261 | } | |
1262 | ||
1263 | h_ret = hipz_h_query_qp(shca->ipz_hca_handle, | |
1264 | my_qp->ipz_qp_handle, | |
1265 | &my_qp->pf, | |
1266 | mqpcb, my_qp->galpas.kernel); | |
1267 | if (h_ret != H_SUCCESS) { | |
1268 | ehca_err(ibqp->device, "hipz_h_query_qp() failed " | |
3750f605 | 1269 | "ehca_qp=%p qp_num=%x h_ret=%lli", |
fab97220 HS |
1270 | my_qp, ibqp->qp_num, h_ret); |
1271 | ret = ehca2ib_return_code(h_ret); | |
1272 | goto modify_qp_exit1; | |
1273 | } | |
1988d1fa SR |
1274 | if (ibqp->uobject) |
1275 | is_user = 1; | |
fab97220 HS |
1276 | |
1277 | qp_cur_state = ehca2ib_qp_state(mqpcb->qp_state); | |
1278 | ||
1279 | if (qp_cur_state == -EINVAL) { /* invalid qp state */ | |
1280 | ret = -EINVAL; | |
1281 | ehca_err(ibqp->device, "Invalid current ehca_qp_state=%x " | |
1282 | "ehca_qp=%p qp_num=%x", | |
1283 | mqpcb->qp_state, my_qp, ibqp->qp_num); | |
1284 | goto modify_qp_exit1; | |
1285 | } | |
1286 | /* | |
1287 | * circumvention to set aqp0 initial state to init | |
1288 | * as expected by IB spec | |
1289 | */ | |
1290 | if (smi_reset2init == 0 && | |
1291 | ibqp->qp_type == IB_QPT_SMI && | |
1292 | qp_cur_state == IB_QPS_RESET && | |
1293 | (attr_mask & IB_QP_STATE) && | |
1294 | attr->qp_state == IB_QPS_INIT) { /* RESET -> INIT */ | |
1295 | struct ib_qp_attr smiqp_attr = { | |
1296 | .qp_state = IB_QPS_INIT, | |
1297 | .port_num = my_qp->init_attr.port_num, | |
1298 | .pkey_index = 0, | |
1299 | .qkey = 0 | |
1300 | }; | |
1301 | int smiqp_attr_mask = IB_QP_STATE | IB_QP_PORT | | |
1302 | IB_QP_PKEY_INDEX | IB_QP_QKEY; | |
1303 | int smirc = internal_modify_qp( | |
1304 | ibqp, &smiqp_attr, smiqp_attr_mask, 1); | |
1305 | if (smirc) { | |
1306 | ehca_err(ibqp->device, "SMI RESET -> INIT failed. " | |
e3722192 | 1307 | "ehca_modify_qp() rc=%i", smirc); |
fab97220 HS |
1308 | ret = H_PARAMETER; |
1309 | goto modify_qp_exit1; | |
1310 | } | |
1311 | qp_cur_state = IB_QPS_INIT; | |
1312 | ehca_dbg(ibqp->device, "SMI RESET -> INIT succeeded"); | |
1313 | } | |
1314 | /* is transmitted current state equal to "real" current state */ | |
1315 | if ((attr_mask & IB_QP_CUR_STATE) && | |
1316 | qp_cur_state != attr->cur_qp_state) { | |
1317 | ret = -EINVAL; | |
1318 | ehca_err(ibqp->device, | |
1319 | "Invalid IB_QP_CUR_STATE attr->curr_qp_state=%x <>" | |
1320 | " actual cur_qp_state=%x. ehca_qp=%p qp_num=%x", | |
1321 | attr->cur_qp_state, qp_cur_state, my_qp, ibqp->qp_num); | |
1322 | goto modify_qp_exit1; | |
1323 | } | |
1324 | ||
2b94397a | 1325 | ehca_dbg(ibqp->device, "ehca_qp=%p qp_num=%x current qp_state=%x " |
fab97220 HS |
1326 | "new qp_state=%x attribute_mask=%x", |
1327 | my_qp, ibqp->qp_num, qp_cur_state, attr->qp_state, attr_mask); | |
1328 | ||
1329 | qp_new_state = attr_mask & IB_QP_STATE ? attr->qp_state : qp_cur_state; | |
1330 | if (!smi_reset2init && | |
1331 | !ib_modify_qp_is_ok(qp_cur_state, qp_new_state, ibqp->qp_type, | |
dd5f03be | 1332 | attr_mask, IB_LINK_LAYER_UNSPECIFIED)) { |
fab97220 HS |
1333 | ret = -EINVAL; |
1334 | ehca_err(ibqp->device, | |
1335 | "Invalid qp transition new_state=%x cur_state=%x " | |
1336 | "ehca_qp=%p qp_num=%x attr_mask=%x", qp_new_state, | |
1337 | qp_cur_state, my_qp, ibqp->qp_num, attr_mask); | |
1338 | goto modify_qp_exit1; | |
1339 | } | |
1340 | ||
2b94397a HNN |
1341 | mqpcb->qp_state = ib2ehca_qp_state(qp_new_state); |
1342 | if (mqpcb->qp_state) | |
fab97220 HS |
1343 | update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_STATE, 1); |
1344 | else { | |
1345 | ret = -EINVAL; | |
1346 | ehca_err(ibqp->device, "Invalid new qp state=%x " | |
1347 | "ehca_qp=%p qp_num=%x", | |
1348 | qp_new_state, my_qp, ibqp->qp_num); | |
1349 | goto modify_qp_exit1; | |
1350 | } | |
1351 | ||
1352 | /* retrieve state transition struct to get req and opt attrs */ | |
1353 | statetrans = get_modqp_statetrans(qp_cur_state, qp_new_state); | |
1354 | if (statetrans < 0) { | |
1355 | ret = -EINVAL; | |
1356 | ehca_err(ibqp->device, "<INVALID STATE CHANGE> qp_cur_state=%x " | |
1357 | "new_qp_state=%x State_xsition=%x ehca_qp=%p " | |
1358 | "qp_num=%x", qp_cur_state, qp_new_state, | |
1359 | statetrans, my_qp, ibqp->qp_num); | |
1360 | goto modify_qp_exit1; | |
1361 | } | |
1362 | ||
1363 | qp_attr_idx = ib2ehcaqptype(ibqp->qp_type); | |
1364 | ||
1365 | if (qp_attr_idx < 0) { | |
1366 | ret = qp_attr_idx; | |
1367 | ehca_err(ibqp->device, | |
1368 | "Invalid QP type=%x ehca_qp=%p qp_num=%x", | |
1369 | ibqp->qp_type, my_qp, ibqp->qp_num); | |
1370 | goto modify_qp_exit1; | |
1371 | } | |
1372 | ||
1373 | ehca_dbg(ibqp->device, | |
1374 | "ehca_qp=%p qp_num=%x <VALID STATE CHANGE> qp_state_xsit=%x", | |
1375 | my_qp, ibqp->qp_num, statetrans); | |
1376 | ||
85f00317 SR |
1377 | /* eHCA2 rev2 and higher require the SEND_GRH_FLAG to be set |
1378 | * in non-LL UD QPs. | |
1379 | */ | |
1380 | if ((my_qp->qp_type == IB_QPT_UD) && | |
1381 | (my_qp->ext_type != EQPT_LLQP) && | |
1382 | (statetrans == IB_QPST_INIT2RTR) && | |
1383 | (shca->hw_level >= 0x22)) { | |
1384 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SEND_GRH_FLAG, 1); | |
1385 | mqpcb->send_grh_flag = 1; | |
1386 | } | |
1387 | ||
fab97220 HS |
1388 | /* sqe -> rts: set purge bit of bad wqe before actual trans */ |
1389 | if ((my_qp->qp_type == IB_QPT_UD || | |
1390 | my_qp->qp_type == IB_QPT_GSI || | |
1391 | my_qp->qp_type == IB_QPT_SMI) && | |
1392 | statetrans == IB_QPST_SQE2RTS) { | |
1393 | /* mark next free wqe if kernel */ | |
4c34bdf5 | 1394 | if (!ibqp->uobject) { |
fab97220 HS |
1395 | struct ehca_wqe *wqe; |
1396 | /* lock send queue */ | |
9844b71b | 1397 | spin_lock_irqsave(&my_qp->spinlock_s, flags); |
fab97220 HS |
1398 | squeue_locked = 1; |
1399 | /* mark next free wqe */ | |
2b94397a | 1400 | wqe = (struct ehca_wqe *) |
fab97220 HS |
1401 | ipz_qeit_get(&my_qp->ipz_squeue); |
1402 | wqe->optype = wqe->wqef = 0xff; | |
1403 | ehca_dbg(ibqp->device, "qp_num=%x next_free_wqe=%p", | |
1404 | ibqp->qp_num, wqe); | |
1405 | } | |
1406 | ret = prepare_sqe_rts(my_qp, shca, &bad_wqe_cnt); | |
1407 | if (ret) { | |
1408 | ehca_err(ibqp->device, "prepare_sqe_rts() failed " | |
e3722192 | 1409 | "ehca_qp=%p qp_num=%x ret=%i", |
fab97220 HS |
1410 | my_qp, ibqp->qp_num, ret); |
1411 | goto modify_qp_exit2; | |
1412 | } | |
1413 | } | |
1414 | ||
1415 | /* | |
1416 | * enable RDMA_Atomic_Control if reset->init und reliable con | |
1417 | * this is necessary since gen2 does not provide that flag, | |
1418 | * but pHyp requires it | |
1419 | */ | |
1420 | if (statetrans == IB_QPST_RESET2INIT && | |
1421 | (ibqp->qp_type == IB_QPT_RC || ibqp->qp_type == IB_QPT_UC)) { | |
1422 | mqpcb->rdma_atomic_ctrl = 3; | |
1423 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RDMA_ATOMIC_CTRL, 1); | |
1424 | } | |
1425 | /* circ. pHyp requires #RDMA/Atomic Resp Res for UC INIT -> RTR */ | |
1426 | if (statetrans == IB_QPST_INIT2RTR && | |
1427 | (ibqp->qp_type == IB_QPT_UC) && | |
1428 | !(attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)) { | |
1429 | mqpcb->rdma_nr_atomic_resp_res = 1; /* default to 1 */ | |
1430 | update_mask |= | |
1431 | EHCA_BMASK_SET(MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES, 1); | |
1432 | } | |
1433 | ||
1434 | if (attr_mask & IB_QP_PKEY_INDEX) { | |
e90d0b3d JF |
1435 | if (attr->pkey_index >= 16) { |
1436 | ret = -EINVAL; | |
1437 | ehca_err(ibqp->device, "Invalid pkey_index=%x. " | |
1438 | "ehca_qp=%p qp_num=%x max_pkey_index=f", | |
1439 | attr->pkey_index, my_qp, ibqp->qp_num); | |
1440 | goto modify_qp_exit2; | |
1441 | } | |
fab97220 HS |
1442 | mqpcb->prim_p_key_idx = attr->pkey_index; |
1443 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_PRIM_P_KEY_IDX, 1); | |
1444 | } | |
1445 | if (attr_mask & IB_QP_PORT) { | |
bbdd267e HNN |
1446 | struct ehca_sport *sport; |
1447 | struct ehca_qp *aqp1; | |
fab97220 HS |
1448 | if (attr->port_num < 1 || attr->port_num > shca->num_ports) { |
1449 | ret = -EINVAL; | |
1450 | ehca_err(ibqp->device, "Invalid port=%x. " | |
1451 | "ehca_qp=%p qp_num=%x num_ports=%x", | |
1452 | attr->port_num, my_qp, ibqp->qp_num, | |
1453 | shca->num_ports); | |
1454 | goto modify_qp_exit2; | |
1455 | } | |
bbdd267e HNN |
1456 | sport = &shca->sport[attr->port_num - 1]; |
1457 | if (!sport->ibqp_sqp[IB_QPT_GSI]) { | |
1458 | /* should not occur */ | |
1459 | ret = -EFAULT; | |
1460 | ehca_err(ibqp->device, "AQP1 was not created for " | |
1461 | "port=%x", attr->port_num); | |
1462 | goto modify_qp_exit2; | |
1463 | } | |
1464 | aqp1 = container_of(sport->ibqp_sqp[IB_QPT_GSI], | |
1465 | struct ehca_qp, ib_qp); | |
1466 | if (ibqp->qp_type != IB_QPT_GSI && | |
1467 | ibqp->qp_type != IB_QPT_SMI && | |
1468 | aqp1->mod_qp_parm) { | |
1469 | /* | |
1470 | * firmware will reject this modify_qp() because | |
1471 | * port is not activated/initialized fully | |
1472 | */ | |
1473 | ret = -EFAULT; | |
1474 | ehca_warn(ibqp->device, "Couldn't modify qp port=%x: " | |
1475 | "either port is being activated (try again) " | |
1476 | "or cabling issue", attr->port_num); | |
1477 | goto modify_qp_exit2; | |
1478 | } | |
fab97220 HS |
1479 | mqpcb->prim_phys_port = attr->port_num; |
1480 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_PRIM_PHYS_PORT, 1); | |
1481 | } | |
1482 | if (attr_mask & IB_QP_QKEY) { | |
1483 | mqpcb->qkey = attr->qkey; | |
1484 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_QKEY, 1); | |
1485 | } | |
1486 | if (attr_mask & IB_QP_AV) { | |
fab97220 HS |
1487 | mqpcb->dlid = attr->ah_attr.dlid; |
1488 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DLID, 1); | |
1489 | mqpcb->source_path_bits = attr->ah_attr.src_path_bits; | |
1490 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SOURCE_PATH_BITS, 1); | |
1491 | mqpcb->service_level = attr->ah_attr.sl; | |
1492 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SERVICE_LEVEL, 1); | |
1493 | ||
3fe2ed34 | 1494 | if (ehca_calc_ipd(shca, mqpcb->prim_phys_port, |
51aaa54e JF |
1495 | attr->ah_attr.static_rate, |
1496 | &mqpcb->max_static_rate)) { | |
1497 | ret = -EINVAL; | |
1498 | goto modify_qp_exit2; | |
1499 | } | |
fab97220 HS |
1500 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_MAX_STATIC_RATE, 1); |
1501 | ||
92761cda JF |
1502 | /* |
1503 | * Always supply the GRH flag, even if it's zero, to give the | |
1504 | * hypervisor a clear "yes" or "no" instead of a "perhaps" | |
1505 | */ | |
1506 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SEND_GRH_FLAG, 1); | |
1507 | ||
fab97220 HS |
1508 | /* |
1509 | * only if GRH is TRUE we might consider SOURCE_GID_IDX | |
1510 | * and DEST_GID otherwise phype will return H_ATTR_PARM!!! | |
1511 | */ | |
1512 | if (attr->ah_attr.ah_flags == IB_AH_GRH) { | |
92761cda JF |
1513 | mqpcb->send_grh_flag = 1; |
1514 | ||
fab97220 HS |
1515 | mqpcb->source_gid_idx = attr->ah_attr.grh.sgid_index; |
1516 | update_mask |= | |
1517 | EHCA_BMASK_SET(MQPCB_MASK_SOURCE_GID_IDX, 1); | |
1518 | ||
1519 | for (cnt = 0; cnt < 16; cnt++) | |
1520 | mqpcb->dest_gid.byte[cnt] = | |
1521 | attr->ah_attr.grh.dgid.raw[cnt]; | |
1522 | ||
1523 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DEST_GID, 1); | |
1524 | mqpcb->flow_label = attr->ah_attr.grh.flow_label; | |
1525 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_FLOW_LABEL, 1); | |
1526 | mqpcb->hop_limit = attr->ah_attr.grh.hop_limit; | |
1527 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_HOP_LIMIT, 1); | |
1528 | mqpcb->traffic_class = attr->ah_attr.grh.traffic_class; | |
1529 | update_mask |= | |
1530 | EHCA_BMASK_SET(MQPCB_MASK_TRAFFIC_CLASS, 1); | |
1531 | } | |
1532 | } | |
1533 | ||
1534 | if (attr_mask & IB_QP_PATH_MTU) { | |
2ec8e662 JF |
1535 | /* store ld(MTU) */ |
1536 | my_qp->mtu_shift = attr->path_mtu + 7; | |
fab97220 HS |
1537 | mqpcb->path_mtu = attr->path_mtu; |
1538 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_PATH_MTU, 1); | |
1539 | } | |
1540 | if (attr_mask & IB_QP_TIMEOUT) { | |
1541 | mqpcb->timeout = attr->timeout; | |
1542 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_TIMEOUT, 1); | |
1543 | } | |
1544 | if (attr_mask & IB_QP_RETRY_CNT) { | |
1545 | mqpcb->retry_count = attr->retry_cnt; | |
1546 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RETRY_COUNT, 1); | |
1547 | } | |
1548 | if (attr_mask & IB_QP_RNR_RETRY) { | |
1549 | mqpcb->rnr_retry_count = attr->rnr_retry; | |
1550 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RNR_RETRY_COUNT, 1); | |
1551 | } | |
1552 | if (attr_mask & IB_QP_RQ_PSN) { | |
1553 | mqpcb->receive_psn = attr->rq_psn; | |
1554 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RECEIVE_PSN, 1); | |
1555 | } | |
1556 | if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { | |
1557 | mqpcb->rdma_nr_atomic_resp_res = attr->max_dest_rd_atomic < 3 ? | |
1558 | attr->max_dest_rd_atomic : 2; | |
1559 | update_mask |= | |
1560 | EHCA_BMASK_SET(MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES, 1); | |
1561 | } | |
1562 | if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { | |
1563 | mqpcb->rdma_atomic_outst_dest_qp = attr->max_rd_atomic < 3 ? | |
1564 | attr->max_rd_atomic : 2; | |
1565 | update_mask |= | |
1566 | EHCA_BMASK_SET | |
1567 | (MQPCB_MASK_RDMA_ATOMIC_OUTST_DEST_QP, 1); | |
1568 | } | |
1569 | if (attr_mask & IB_QP_ALT_PATH) { | |
e90d0b3d JF |
1570 | if (attr->alt_port_num < 1 |
1571 | || attr->alt_port_num > shca->num_ports) { | |
1572 | ret = -EINVAL; | |
1573 | ehca_err(ibqp->device, "Invalid alt_port=%x. " | |
1574 | "ehca_qp=%p qp_num=%x num_ports=%x", | |
1575 | attr->alt_port_num, my_qp, ibqp->qp_num, | |
1576 | shca->num_ports); | |
1577 | goto modify_qp_exit2; | |
1578 | } | |
1579 | mqpcb->alt_phys_port = attr->alt_port_num; | |
1580 | ||
1581 | if (attr->alt_pkey_index >= 16) { | |
1582 | ret = -EINVAL; | |
1583 | ehca_err(ibqp->device, "Invalid alt_pkey_index=%x. " | |
1584 | "ehca_qp=%p qp_num=%x max_pkey_index=f", | |
1585 | attr->pkey_index, my_qp, ibqp->qp_num); | |
1586 | goto modify_qp_exit2; | |
1587 | } | |
1588 | mqpcb->alt_p_key_idx = attr->alt_pkey_index; | |
1589 | ||
1590 | mqpcb->timeout_al = attr->alt_timeout; | |
fab97220 | 1591 | mqpcb->dlid_al = attr->alt_ah_attr.dlid; |
fab97220 | 1592 | mqpcb->source_path_bits_al = attr->alt_ah_attr.src_path_bits; |
fab97220 | 1593 | mqpcb->service_level_al = attr->alt_ah_attr.sl; |
fab97220 | 1594 | |
3fe2ed34 | 1595 | if (ehca_calc_ipd(shca, mqpcb->alt_phys_port, |
51aaa54e JF |
1596 | attr->alt_ah_attr.static_rate, |
1597 | &mqpcb->max_static_rate_al)) { | |
1598 | ret = -EINVAL; | |
1599 | goto modify_qp_exit2; | |
1600 | } | |
fab97220 | 1601 | |
e90d0b3d JF |
1602 | /* OpenIB doesn't support alternate retry counts - copy them */ |
1603 | mqpcb->retry_count_al = mqpcb->retry_count; | |
1604 | mqpcb->rnr_retry_count_al = mqpcb->rnr_retry_count; | |
1605 | ||
1606 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_ALT_PHYS_PORT, 1) | |
1607 | | EHCA_BMASK_SET(MQPCB_MASK_ALT_P_KEY_IDX, 1) | |
1608 | | EHCA_BMASK_SET(MQPCB_MASK_TIMEOUT_AL, 1) | |
1609 | | EHCA_BMASK_SET(MQPCB_MASK_DLID_AL, 1) | |
1610 | | EHCA_BMASK_SET(MQPCB_MASK_SOURCE_PATH_BITS_AL, 1) | |
1611 | | EHCA_BMASK_SET(MQPCB_MASK_SERVICE_LEVEL_AL, 1) | |
1612 | | EHCA_BMASK_SET(MQPCB_MASK_MAX_STATIC_RATE_AL, 1) | |
1613 | | EHCA_BMASK_SET(MQPCB_MASK_RETRY_COUNT_AL, 1) | |
1614 | | EHCA_BMASK_SET(MQPCB_MASK_RNR_RETRY_COUNT_AL, 1); | |
1615 | ||
1616 | /* | |
1617 | * Always supply the GRH flag, even if it's zero, to give the | |
1618 | * hypervisor a clear "yes" or "no" instead of a "perhaps" | |
1619 | */ | |
1620 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SEND_GRH_FLAG_AL, 1); | |
fab97220 HS |
1621 | |
1622 | /* | |
1623 | * only if GRH is TRUE we might consider SOURCE_GID_IDX | |
1624 | * and DEST_GID otherwise phype will return H_ATTR_PARM!!! | |
1625 | */ | |
1626 | if (attr->alt_ah_attr.ah_flags == IB_AH_GRH) { | |
e90d0b3d | 1627 | mqpcb->send_grh_flag_al = 1; |
fab97220 HS |
1628 | |
1629 | for (cnt = 0; cnt < 16; cnt++) | |
1630 | mqpcb->dest_gid_al.byte[cnt] = | |
1631 | attr->alt_ah_attr.grh.dgid.raw[cnt]; | |
e90d0b3d JF |
1632 | mqpcb->source_gid_idx_al = |
1633 | attr->alt_ah_attr.grh.sgid_index; | |
fab97220 | 1634 | mqpcb->flow_label_al = attr->alt_ah_attr.grh.flow_label; |
fab97220 | 1635 | mqpcb->hop_limit_al = attr->alt_ah_attr.grh.hop_limit; |
fab97220 HS |
1636 | mqpcb->traffic_class_al = |
1637 | attr->alt_ah_attr.grh.traffic_class; | |
e90d0b3d | 1638 | |
fab97220 | 1639 | update_mask |= |
e90d0b3d JF |
1640 | EHCA_BMASK_SET(MQPCB_MASK_SOURCE_GID_IDX_AL, 1) |
1641 | | EHCA_BMASK_SET(MQPCB_MASK_DEST_GID_AL, 1) | |
1642 | | EHCA_BMASK_SET(MQPCB_MASK_FLOW_LABEL_AL, 1) | |
1643 | | EHCA_BMASK_SET(MQPCB_MASK_HOP_LIMIT_AL, 1) | | |
fab97220 HS |
1644 | EHCA_BMASK_SET(MQPCB_MASK_TRAFFIC_CLASS_AL, 1); |
1645 | } | |
1646 | } | |
1647 | ||
1648 | if (attr_mask & IB_QP_MIN_RNR_TIMER) { | |
1649 | mqpcb->min_rnr_nak_timer_field = attr->min_rnr_timer; | |
1650 | update_mask |= | |
1651 | EHCA_BMASK_SET(MQPCB_MASK_MIN_RNR_NAK_TIMER_FIELD, 1); | |
1652 | } | |
1653 | ||
1654 | if (attr_mask & IB_QP_SQ_PSN) { | |
1655 | mqpcb->send_psn = attr->sq_psn; | |
1656 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SEND_PSN, 1); | |
1657 | } | |
1658 | ||
1659 | if (attr_mask & IB_QP_DEST_QPN) { | |
1660 | mqpcb->dest_qp_nr = attr->dest_qp_num; | |
1661 | update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DEST_QP_NR, 1); | |
1662 | } | |
1663 | ||
1664 | if (attr_mask & IB_QP_PATH_MIG_STATE) { | |
e90d0b3d JF |
1665 | if (attr->path_mig_state != IB_MIG_REARM |
1666 | && attr->path_mig_state != IB_MIG_MIGRATED) { | |
1667 | ret = -EINVAL; | |
1668 | ehca_err(ibqp->device, "Invalid mig_state=%x", | |
1669 | attr->path_mig_state); | |
1670 | goto modify_qp_exit2; | |
1671 | } | |
1672 | mqpcb->path_migration_state = attr->path_mig_state + 1; | |
5b673b71 JF |
1673 | if (attr->path_mig_state == IB_MIG_REARM) |
1674 | my_qp->mig_armed = 1; | |
fab97220 HS |
1675 | update_mask |= |
1676 | EHCA_BMASK_SET(MQPCB_MASK_PATH_MIGRATION_STATE, 1); | |
1677 | } | |
1678 | ||
1679 | if (attr_mask & IB_QP_CAP) { | |
1680 | mqpcb->max_nr_outst_send_wr = attr->cap.max_send_wr+1; | |
1681 | update_mask |= | |
1682 | EHCA_BMASK_SET(MQPCB_MASK_MAX_NR_OUTST_SEND_WR, 1); | |
1683 | mqpcb->max_nr_outst_recv_wr = attr->cap.max_recv_wr+1; | |
1684 | update_mask |= | |
1685 | EHCA_BMASK_SET(MQPCB_MASK_MAX_NR_OUTST_RECV_WR, 1); | |
1686 | /* no support for max_send/recv_sge yet */ | |
1687 | } | |
1688 | ||
4da27d6d | 1689 | if (ehca_debug_level >= 2) |
fab97220 HS |
1690 | ehca_dmp(mqpcb, 4*70, "qp_num=%x", ibqp->qp_num); |
1691 | ||
1692 | h_ret = hipz_h_modify_qp(shca->ipz_hca_handle, | |
1693 | my_qp->ipz_qp_handle, | |
1694 | &my_qp->pf, | |
1695 | update_mask, | |
1696 | mqpcb, my_qp->galpas.kernel); | |
1697 | ||
1698 | if (h_ret != H_SUCCESS) { | |
1699 | ret = ehca2ib_return_code(h_ret); | |
3750f605 | 1700 | ehca_err(ibqp->device, "hipz_h_modify_qp() failed h_ret=%lli " |
2b94397a | 1701 | "ehca_qp=%p qp_num=%x", h_ret, my_qp, ibqp->qp_num); |
fab97220 HS |
1702 | goto modify_qp_exit2; |
1703 | } | |
1704 | ||
1705 | if ((my_qp->qp_type == IB_QPT_UD || | |
1706 | my_qp->qp_type == IB_QPT_GSI || | |
1707 | my_qp->qp_type == IB_QPT_SMI) && | |
1708 | statetrans == IB_QPST_SQE2RTS) { | |
1709 | /* doorbell to reprocessing wqes */ | |
1710 | iosync(); /* serialize GAL register access */ | |
1711 | hipz_update_sqa(my_qp, bad_wqe_cnt-1); | |
1712 | ehca_gen_dbg("doorbell for %x wqes", bad_wqe_cnt); | |
1713 | } | |
1714 | ||
1715 | if (statetrans == IB_QPST_RESET2INIT || | |
1716 | statetrans == IB_QPST_INIT2INIT) { | |
1717 | mqpcb->qp_enable = 1; | |
1718 | mqpcb->qp_state = EHCA_QPS_INIT; | |
1719 | update_mask = 0; | |
1720 | update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_ENABLE, 1); | |
1721 | ||
1722 | h_ret = hipz_h_modify_qp(shca->ipz_hca_handle, | |
1723 | my_qp->ipz_qp_handle, | |
1724 | &my_qp->pf, | |
1725 | update_mask, | |
1726 | mqpcb, | |
1727 | my_qp->galpas.kernel); | |
1728 | ||
1729 | if (h_ret != H_SUCCESS) { | |
1730 | ret = ehca2ib_return_code(h_ret); | |
1731 | ehca_err(ibqp->device, "ENABLE in context of " | |
1732 | "RESET_2_INIT failed! Maybe you didn't get " | |
3750f605 | 1733 | "a LID h_ret=%lli ehca_qp=%p qp_num=%x", |
fab97220 HS |
1734 | h_ret, my_qp, ibqp->qp_num); |
1735 | goto modify_qp_exit2; | |
1736 | } | |
1737 | } | |
1988d1fa SR |
1738 | if ((qp_new_state == IB_QPS_ERR) && (qp_cur_state != IB_QPS_ERR) |
1739 | && !is_user) { | |
b9012e0a AS |
1740 | ret = check_for_left_cqes(my_qp, shca); |
1741 | if (ret) | |
1742 | goto modify_qp_exit2; | |
1743 | } | |
fab97220 HS |
1744 | |
1745 | if (statetrans == IB_QPST_ANY2RESET) { | |
1746 | ipz_qeit_reset(&my_qp->ipz_rqueue); | |
1747 | ipz_qeit_reset(&my_qp->ipz_squeue); | |
b9012e0a | 1748 | |
1988d1fa | 1749 | if (qp_cur_state == IB_QPS_ERR && !is_user) { |
b9012e0a AS |
1750 | del_from_err_list(my_qp->send_cq, &my_qp->sq_err_node); |
1751 | ||
1752 | if (HAS_RQ(my_qp)) | |
1753 | del_from_err_list(my_qp->recv_cq, | |
1754 | &my_qp->rq_err_node); | |
1755 | } | |
1988d1fa SR |
1756 | if (!is_user) |
1757 | reset_queue_map(&my_qp->sq_map); | |
b9012e0a | 1758 | |
1988d1fa | 1759 | if (HAS_RQ(my_qp) && !is_user) |
b9012e0a | 1760 | reset_queue_map(&my_qp->rq_map); |
fab97220 HS |
1761 | } |
1762 | ||
1763 | if (attr_mask & IB_QP_QKEY) | |
1764 | my_qp->qkey = attr->qkey; | |
1765 | ||
1766 | modify_qp_exit2: | |
1767 | if (squeue_locked) { /* this means: sqe -> rts */ | |
9844b71b | 1768 | spin_unlock_irqrestore(&my_qp->spinlock_s, flags); |
fab97220 HS |
1769 | my_qp->sqerr_purgeflag = 1; |
1770 | } | |
1771 | ||
1772 | modify_qp_exit1: | |
7e28db5d | 1773 | ehca_free_fw_ctrlblock(mqpcb); |
fab97220 HS |
1774 | |
1775 | return ret; | |
1776 | } | |
1777 | ||
9bc57e2d RC |
1778 | int ehca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, |
1779 | struct ib_udata *udata) | |
fab97220 | 1780 | { |
51ad241a AS |
1781 | int ret = 0; |
1782 | ||
bbdd267e HNN |
1783 | struct ehca_shca *shca = container_of(ibqp->device, struct ehca_shca, |
1784 | ib_device); | |
fab97220 | 1785 | struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp); |
fab97220 | 1786 | |
bbdd267e HNN |
1787 | /* The if-block below caches qp_attr to be modified for GSI and SMI |
1788 | * qps during the initialization by ib_mad. When the respective port | |
1789 | * is activated, ie we got an event PORT_ACTIVE, we'll replay the | |
1790 | * cached modify calls sequence, see ehca_recover_sqs() below. | |
1791 | * Why that is required: | |
1792 | * 1) If one port is connected, older code requires that port one | |
1793 | * to be connected and module option nr_ports=1 to be given by | |
1794 | * user, which is very inconvenient for end user. | |
1795 | * 2) Firmware accepts modify_qp() only if respective port has become | |
1796 | * active. Older code had a wait loop of 30sec create_qp()/ | |
1797 | * define_aqp1(), which is not appropriate in practice. This | |
1798 | * code now removes that wait loop, see define_aqp1(), and always | |
1799 | * reports all ports to ib_mad resp. users. Only activated ports | |
1800 | * will then usable for the users. | |
1801 | */ | |
1802 | if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI) { | |
1803 | int port = my_qp->init_attr.port_num; | |
1804 | struct ehca_sport *sport = &shca->sport[port - 1]; | |
1805 | unsigned long flags; | |
1806 | spin_lock_irqsave(&sport->mod_sqp_lock, flags); | |
1807 | /* cache qp_attr only during init */ | |
1808 | if (my_qp->mod_qp_parm) { | |
1809 | struct ehca_mod_qp_parm *p; | |
1810 | if (my_qp->mod_qp_parm_idx >= EHCA_MOD_QP_PARM_MAX) { | |
1811 | ehca_err(&shca->ib_device, | |
1812 | "mod_qp_parm overflow state=%x port=%x" | |
1813 | " type=%x", attr->qp_state, | |
1814 | my_qp->init_attr.port_num, | |
1815 | ibqp->qp_type); | |
1816 | spin_unlock_irqrestore(&sport->mod_sqp_lock, | |
1817 | flags); | |
1818 | return -EINVAL; | |
1819 | } | |
1820 | p = &my_qp->mod_qp_parm[my_qp->mod_qp_parm_idx]; | |
1821 | p->mask = attr_mask; | |
1822 | p->attr = *attr; | |
1823 | my_qp->mod_qp_parm_idx++; | |
1824 | ehca_dbg(&shca->ib_device, | |
1825 | "Saved qp_attr for state=%x port=%x type=%x", | |
1826 | attr->qp_state, my_qp->init_attr.port_num, | |
1827 | ibqp->qp_type); | |
1828 | spin_unlock_irqrestore(&sport->mod_sqp_lock, flags); | |
51ad241a | 1829 | goto out; |
bbdd267e HNN |
1830 | } |
1831 | spin_unlock_irqrestore(&sport->mod_sqp_lock, flags); | |
1832 | } | |
1833 | ||
51ad241a AS |
1834 | ret = internal_modify_qp(ibqp, attr, attr_mask, 0); |
1835 | ||
1836 | out: | |
1837 | if ((ret == 0) && (attr_mask & IB_QP_STATE)) | |
1838 | my_qp->state = attr->qp_state; | |
1839 | ||
1840 | return ret; | |
fab97220 HS |
1841 | } |
1842 | ||
bbdd267e HNN |
1843 | void ehca_recover_sqp(struct ib_qp *sqp) |
1844 | { | |
1845 | struct ehca_qp *my_sqp = container_of(sqp, struct ehca_qp, ib_qp); | |
1846 | int port = my_sqp->init_attr.port_num; | |
1847 | struct ib_qp_attr attr; | |
1848 | struct ehca_mod_qp_parm *qp_parm; | |
1849 | int i, qp_parm_idx, ret; | |
1850 | unsigned long flags, wr_cnt; | |
1851 | ||
1852 | if (!my_sqp->mod_qp_parm) | |
1853 | return; | |
1854 | ehca_dbg(sqp->device, "SQP port=%x qp_num=%x", port, sqp->qp_num); | |
1855 | ||
1856 | qp_parm = my_sqp->mod_qp_parm; | |
1857 | qp_parm_idx = my_sqp->mod_qp_parm_idx; | |
1858 | for (i = 0; i < qp_parm_idx; i++) { | |
1859 | attr = qp_parm[i].attr; | |
1860 | ret = internal_modify_qp(sqp, &attr, qp_parm[i].mask, 0); | |
1861 | if (ret) { | |
1862 | ehca_err(sqp->device, "Could not modify SQP port=%x " | |
1863 | "qp_num=%x ret=%x", port, sqp->qp_num, ret); | |
1864 | goto free_qp_parm; | |
1865 | } | |
1866 | ehca_dbg(sqp->device, "SQP port=%x qp_num=%x in state=%x", | |
1867 | port, sqp->qp_num, attr.qp_state); | |
1868 | } | |
1869 | ||
1870 | /* re-trigger posted recv wrs */ | |
1871 | wr_cnt = my_sqp->ipz_rqueue.current_q_offset / | |
1872 | my_sqp->ipz_rqueue.qe_size; | |
1873 | if (wr_cnt) { | |
1874 | spin_lock_irqsave(&my_sqp->spinlock_r, flags); | |
1875 | hipz_update_rqa(my_sqp, wr_cnt); | |
1876 | spin_unlock_irqrestore(&my_sqp->spinlock_r, flags); | |
1877 | ehca_dbg(sqp->device, "doorbell port=%x qp_num=%x wr_cnt=%lx", | |
1878 | port, sqp->qp_num, wr_cnt); | |
1879 | } | |
1880 | ||
1881 | free_qp_parm: | |
1882 | kfree(qp_parm); | |
1883 | /* this prevents subsequent calls to modify_qp() to cache qp_attr */ | |
1884 | my_sqp->mod_qp_parm = NULL; | |
1885 | } | |
1886 | ||
fab97220 HS |
1887 | int ehca_query_qp(struct ib_qp *qp, |
1888 | struct ib_qp_attr *qp_attr, | |
1889 | int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr) | |
1890 | { | |
1891 | struct ehca_qp *my_qp = container_of(qp, struct ehca_qp, ib_qp); | |
fab97220 HS |
1892 | struct ehca_shca *shca = container_of(qp->device, struct ehca_shca, |
1893 | ib_device); | |
1894 | struct ipz_adapter_handle adapter_handle = shca->ipz_hca_handle; | |
1895 | struct hcp_modify_qp_control_block *qpcb; | |
fab97220 HS |
1896 | int cnt, ret = 0; |
1897 | u64 h_ret; | |
1898 | ||
fab97220 | 1899 | if (qp_attr_mask & QP_ATTR_QUERY_NOT_SUPPORTED) { |
2b94397a | 1900 | ehca_err(qp->device, "Invalid attribute mask " |
fab97220 HS |
1901 | "ehca_qp=%p qp_num=%x qp_attr_mask=%x ", |
1902 | my_qp, qp->qp_num, qp_attr_mask); | |
1903 | return -EINVAL; | |
1904 | } | |
1905 | ||
f2d91361 | 1906 | qpcb = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
fab97220 | 1907 | if (!qpcb) { |
2b94397a | 1908 | ehca_err(qp->device, "Out of memory for qpcb " |
fab97220 HS |
1909 | "ehca_qp=%p qp_num=%x", my_qp, qp->qp_num); |
1910 | return -ENOMEM; | |
1911 | } | |
1912 | ||
1913 | h_ret = hipz_h_query_qp(adapter_handle, | |
1914 | my_qp->ipz_qp_handle, | |
1915 | &my_qp->pf, | |
1916 | qpcb, my_qp->galpas.kernel); | |
1917 | ||
1918 | if (h_ret != H_SUCCESS) { | |
1919 | ret = ehca2ib_return_code(h_ret); | |
2b94397a | 1920 | ehca_err(qp->device, "hipz_h_query_qp() failed " |
3750f605 | 1921 | "ehca_qp=%p qp_num=%x h_ret=%lli", |
fab97220 HS |
1922 | my_qp, qp->qp_num, h_ret); |
1923 | goto query_qp_exit1; | |
1924 | } | |
1925 | ||
1926 | qp_attr->cur_qp_state = ehca2ib_qp_state(qpcb->qp_state); | |
1927 | qp_attr->qp_state = qp_attr->cur_qp_state; | |
1928 | ||
1929 | if (qp_attr->cur_qp_state == -EINVAL) { | |
1930 | ret = -EINVAL; | |
2b94397a | 1931 | ehca_err(qp->device, "Got invalid ehca_qp_state=%x " |
fab97220 HS |
1932 | "ehca_qp=%p qp_num=%x", |
1933 | qpcb->qp_state, my_qp, qp->qp_num); | |
1934 | goto query_qp_exit1; | |
1935 | } | |
1936 | ||
1937 | if (qp_attr->qp_state == IB_QPS_SQD) | |
1938 | qp_attr->sq_draining = 1; | |
1939 | ||
1940 | qp_attr->qkey = qpcb->qkey; | |
1941 | qp_attr->path_mtu = qpcb->path_mtu; | |
e90d0b3d | 1942 | qp_attr->path_mig_state = qpcb->path_migration_state - 1; |
fab97220 HS |
1943 | qp_attr->rq_psn = qpcb->receive_psn; |
1944 | qp_attr->sq_psn = qpcb->send_psn; | |
1945 | qp_attr->min_rnr_timer = qpcb->min_rnr_nak_timer_field; | |
1946 | qp_attr->cap.max_send_wr = qpcb->max_nr_outst_send_wr-1; | |
1947 | qp_attr->cap.max_recv_wr = qpcb->max_nr_outst_recv_wr-1; | |
1948 | /* UD_AV CIRCUMVENTION */ | |
1949 | if (my_qp->qp_type == IB_QPT_UD) { | |
1950 | qp_attr->cap.max_send_sge = | |
1951 | qpcb->actual_nr_sges_in_sq_wqe - 2; | |
1952 | qp_attr->cap.max_recv_sge = | |
1953 | qpcb->actual_nr_sges_in_rq_wqe - 2; | |
1954 | } else { | |
1955 | qp_attr->cap.max_send_sge = | |
1956 | qpcb->actual_nr_sges_in_sq_wqe; | |
1957 | qp_attr->cap.max_recv_sge = | |
1958 | qpcb->actual_nr_sges_in_rq_wqe; | |
1959 | } | |
1960 | ||
1961 | qp_attr->cap.max_inline_data = my_qp->sq_max_inline_data_size; | |
1962 | qp_attr->dest_qp_num = qpcb->dest_qp_nr; | |
1963 | ||
25a52393 JF |
1964 | qp_attr->pkey_index = qpcb->prim_p_key_idx; |
1965 | qp_attr->port_num = qpcb->prim_phys_port; | |
fab97220 HS |
1966 | qp_attr->timeout = qpcb->timeout; |
1967 | qp_attr->retry_cnt = qpcb->retry_count; | |
1968 | qp_attr->rnr_retry = qpcb->rnr_retry_count; | |
1969 | ||
25a52393 | 1970 | qp_attr->alt_pkey_index = qpcb->alt_p_key_idx; |
fab97220 HS |
1971 | qp_attr->alt_port_num = qpcb->alt_phys_port; |
1972 | qp_attr->alt_timeout = qpcb->timeout_al; | |
1973 | ||
15f001ec HNN |
1974 | qp_attr->max_dest_rd_atomic = qpcb->rdma_nr_atomic_resp_res; |
1975 | qp_attr->max_rd_atomic = qpcb->rdma_atomic_outst_dest_qp; | |
1976 | ||
fab97220 HS |
1977 | /* primary av */ |
1978 | qp_attr->ah_attr.sl = qpcb->service_level; | |
1979 | ||
1980 | if (qpcb->send_grh_flag) { | |
1981 | qp_attr->ah_attr.ah_flags = IB_AH_GRH; | |
1982 | } | |
1983 | ||
1984 | qp_attr->ah_attr.static_rate = qpcb->max_static_rate; | |
1985 | qp_attr->ah_attr.dlid = qpcb->dlid; | |
1986 | qp_attr->ah_attr.src_path_bits = qpcb->source_path_bits; | |
1987 | qp_attr->ah_attr.port_num = qp_attr->port_num; | |
1988 | ||
1989 | /* primary GRH */ | |
1990 | qp_attr->ah_attr.grh.traffic_class = qpcb->traffic_class; | |
1991 | qp_attr->ah_attr.grh.hop_limit = qpcb->hop_limit; | |
1992 | qp_attr->ah_attr.grh.sgid_index = qpcb->source_gid_idx; | |
1993 | qp_attr->ah_attr.grh.flow_label = qpcb->flow_label; | |
1994 | ||
1995 | for (cnt = 0; cnt < 16; cnt++) | |
1996 | qp_attr->ah_attr.grh.dgid.raw[cnt] = | |
1997 | qpcb->dest_gid.byte[cnt]; | |
1998 | ||
1999 | /* alternate AV */ | |
2000 | qp_attr->alt_ah_attr.sl = qpcb->service_level_al; | |
2001 | if (qpcb->send_grh_flag_al) { | |
2002 | qp_attr->alt_ah_attr.ah_flags = IB_AH_GRH; | |
2003 | } | |
2004 | ||
2005 | qp_attr->alt_ah_attr.static_rate = qpcb->max_static_rate_al; | |
2006 | qp_attr->alt_ah_attr.dlid = qpcb->dlid_al; | |
2007 | qp_attr->alt_ah_attr.src_path_bits = qpcb->source_path_bits_al; | |
2008 | ||
2009 | /* alternate GRH */ | |
2010 | qp_attr->alt_ah_attr.grh.traffic_class = qpcb->traffic_class_al; | |
2011 | qp_attr->alt_ah_attr.grh.hop_limit = qpcb->hop_limit_al; | |
2012 | qp_attr->alt_ah_attr.grh.sgid_index = qpcb->source_gid_idx_al; | |
2013 | qp_attr->alt_ah_attr.grh.flow_label = qpcb->flow_label_al; | |
2014 | ||
2015 | for (cnt = 0; cnt < 16; cnt++) | |
2016 | qp_attr->alt_ah_attr.grh.dgid.raw[cnt] = | |
2017 | qpcb->dest_gid_al.byte[cnt]; | |
2018 | ||
2019 | /* return init attributes given in ehca_create_qp */ | |
2020 | if (qp_init_attr) | |
2021 | *qp_init_attr = my_qp->init_attr; | |
2022 | ||
4da27d6d | 2023 | if (ehca_debug_level >= 2) |
fab97220 HS |
2024 | ehca_dmp(qpcb, 4*70, "qp_num=%x", qp->qp_num); |
2025 | ||
2026 | query_qp_exit1: | |
7e28db5d | 2027 | ehca_free_fw_ctrlblock(qpcb); |
fab97220 HS |
2028 | |
2029 | return ret; | |
2030 | } | |
2031 | ||
a6a12947 JF |
2032 | int ehca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, |
2033 | enum ib_srq_attr_mask attr_mask, struct ib_udata *udata) | |
fab97220 | 2034 | { |
a6a12947 JF |
2035 | struct ehca_qp *my_qp = |
2036 | container_of(ibsrq, struct ehca_qp, ib_srq); | |
a6a12947 JF |
2037 | struct ehca_shca *shca = |
2038 | container_of(ibsrq->pd->device, struct ehca_shca, ib_device); | |
2039 | struct hcp_modify_qp_control_block *mqpcb; | |
2040 | u64 update_mask; | |
2041 | u64 h_ret; | |
2042 | int ret = 0; | |
2043 | ||
a6a12947 JF |
2044 | mqpcb = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
2045 | if (!mqpcb) { | |
2046 | ehca_err(ibsrq->device, "Could not get zeroed page for mqpcb " | |
2047 | "ehca_qp=%p qp_num=%x ", my_qp, my_qp->real_qp_num); | |
2048 | return -ENOMEM; | |
2049 | } | |
2050 | ||
2051 | update_mask = 0; | |
2052 | if (attr_mask & IB_SRQ_LIMIT) { | |
2053 | attr_mask &= ~IB_SRQ_LIMIT; | |
2054 | update_mask |= | |
2055 | EHCA_BMASK_SET(MQPCB_MASK_CURR_SRQ_LIMIT, 1) | |
2056 | | EHCA_BMASK_SET(MQPCB_MASK_QP_AFF_ASYN_EV_LOG_REG, 1); | |
25a52393 | 2057 | mqpcb->curr_srq_limit = attr->srq_limit; |
a6a12947 JF |
2058 | mqpcb->qp_aff_asyn_ev_log_reg = |
2059 | EHCA_BMASK_SET(QPX_AAELOG_RESET_SRQ_LIMIT, 1); | |
2060 | } | |
2061 | ||
2062 | /* by now, all bits in attr_mask should have been cleared */ | |
2063 | if (attr_mask) { | |
2064 | ehca_err(ibsrq->device, "invalid attribute mask bits set " | |
2065 | "attr_mask=%x", attr_mask); | |
2066 | ret = -EINVAL; | |
2067 | goto modify_srq_exit0; | |
2068 | } | |
2069 | ||
4da27d6d | 2070 | if (ehca_debug_level >= 2) |
a6a12947 JF |
2071 | ehca_dmp(mqpcb, 4*70, "qp_num=%x", my_qp->real_qp_num); |
2072 | ||
2073 | h_ret = hipz_h_modify_qp(shca->ipz_hca_handle, my_qp->ipz_qp_handle, | |
2074 | NULL, update_mask, mqpcb, | |
2075 | my_qp->galpas.kernel); | |
2076 | ||
2077 | if (h_ret != H_SUCCESS) { | |
2078 | ret = ehca2ib_return_code(h_ret); | |
3750f605 | 2079 | ehca_err(ibsrq->device, "hipz_h_modify_qp() failed h_ret=%lli " |
a6a12947 JF |
2080 | "ehca_qp=%p qp_num=%x", |
2081 | h_ret, my_qp, my_qp->real_qp_num); | |
2082 | } | |
2083 | ||
2084 | modify_srq_exit0: | |
2085 | ehca_free_fw_ctrlblock(mqpcb); | |
2086 | ||
2087 | return ret; | |
2088 | } | |
2089 | ||
2090 | int ehca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr) | |
2091 | { | |
2092 | struct ehca_qp *my_qp = container_of(srq, struct ehca_qp, ib_srq); | |
a6a12947 | 2093 | struct ehca_shca *shca = container_of(srq->device, struct ehca_shca, |
fab97220 | 2094 | ib_device); |
a6a12947 JF |
2095 | struct ipz_adapter_handle adapter_handle = shca->ipz_hca_handle; |
2096 | struct hcp_modify_qp_control_block *qpcb; | |
a6a12947 JF |
2097 | int ret = 0; |
2098 | u64 h_ret; | |
2099 | ||
a6a12947 JF |
2100 | qpcb = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
2101 | if (!qpcb) { | |
2102 | ehca_err(srq->device, "Out of memory for qpcb " | |
2103 | "ehca_qp=%p qp_num=%x", my_qp, my_qp->real_qp_num); | |
2104 | return -ENOMEM; | |
2105 | } | |
2106 | ||
2107 | h_ret = hipz_h_query_qp(adapter_handle, my_qp->ipz_qp_handle, | |
2108 | NULL, qpcb, my_qp->galpas.kernel); | |
2109 | ||
2110 | if (h_ret != H_SUCCESS) { | |
2111 | ret = ehca2ib_return_code(h_ret); | |
2112 | ehca_err(srq->device, "hipz_h_query_qp() failed " | |
3750f605 | 2113 | "ehca_qp=%p qp_num=%x h_ret=%lli", |
a6a12947 JF |
2114 | my_qp, my_qp->real_qp_num, h_ret); |
2115 | goto query_srq_exit1; | |
2116 | } | |
2117 | ||
2118 | srq_attr->max_wr = qpcb->max_nr_outst_recv_wr - 1; | |
1457edc7 | 2119 | srq_attr->max_sge = 3; |
25a52393 | 2120 | srq_attr->srq_limit = qpcb->curr_srq_limit; |
a6a12947 | 2121 | |
4da27d6d | 2122 | if (ehca_debug_level >= 2) |
a6a12947 JF |
2123 | ehca_dmp(qpcb, 4*70, "qp_num=%x", my_qp->real_qp_num); |
2124 | ||
2125 | query_srq_exit1: | |
2126 | ehca_free_fw_ctrlblock(qpcb); | |
2127 | ||
2128 | return ret; | |
2129 | } | |
2130 | ||
0c10f7b7 JF |
2131 | static int internal_destroy_qp(struct ib_device *dev, struct ehca_qp *my_qp, |
2132 | struct ib_uobject *uobject) | |
a6a12947 JF |
2133 | { |
2134 | struct ehca_shca *shca = container_of(dev, struct ehca_shca, ib_device); | |
fab97220 HS |
2135 | struct ehca_pd *my_pd = container_of(my_qp->ib_qp.pd, struct ehca_pd, |
2136 | ib_pd); | |
bbdd267e | 2137 | struct ehca_sport *sport = &shca->sport[my_qp->init_attr.port_num - 1]; |
a6a12947 | 2138 | u32 qp_num = my_qp->real_qp_num; |
fab97220 HS |
2139 | int ret; |
2140 | u64 h_ret; | |
2141 | u8 port_num; | |
1988d1fa | 2142 | int is_user = 0; |
fab97220 HS |
2143 | enum ib_qp_type qp_type; |
2144 | unsigned long flags; | |
2145 | ||
a6a12947 | 2146 | if (uobject) { |
1988d1fa | 2147 | is_user = 1; |
4c34bdf5 HNN |
2148 | if (my_qp->mm_count_galpa || |
2149 | my_qp->mm_count_rqueue || my_qp->mm_count_squeue) { | |
a6a12947 JF |
2150 | ehca_err(dev, "Resources still referenced in " |
2151 | "user space qp_num=%x", qp_num); | |
4c34bdf5 HNN |
2152 | return -EINVAL; |
2153 | } | |
fab97220 HS |
2154 | } |
2155 | ||
2156 | if (my_qp->send_cq) { | |
a6a12947 | 2157 | ret = ehca_cq_unassign_qp(my_qp->send_cq, qp_num); |
fab97220 | 2158 | if (ret) { |
a6a12947 | 2159 | ehca_err(dev, "Couldn't unassign qp from " |
e3722192 | 2160 | "send_cq ret=%i qp_num=%x cq_num=%x", ret, |
a6a12947 | 2161 | qp_num, my_qp->send_cq->cq_number); |
fab97220 HS |
2162 | return ret; |
2163 | } | |
2164 | } | |
2165 | ||
26ed687f | 2166 | write_lock_irqsave(&ehca_qp_idr_lock, flags); |
fab97220 | 2167 | idr_remove(&ehca_qp_idr, my_qp->token); |
26ed687f | 2168 | write_unlock_irqrestore(&ehca_qp_idr_lock, flags); |
fab97220 | 2169 | |
b9012e0a AS |
2170 | /* |
2171 | * SRQs will never get into an error list and do not have a recv_cq, | |
2172 | * so we need to skip them here. | |
2173 | */ | |
1988d1fa | 2174 | if (HAS_RQ(my_qp) && !IS_SRQ(my_qp) && !is_user) |
b9012e0a AS |
2175 | del_from_err_list(my_qp->recv_cq, &my_qp->rq_err_node); |
2176 | ||
1988d1fa | 2177 | if (HAS_SQ(my_qp) && !is_user) |
b9012e0a AS |
2178 | del_from_err_list(my_qp->send_cq, &my_qp->sq_err_node); |
2179 | ||
12137c59 SR |
2180 | /* now wait until all pending events have completed */ |
2181 | wait_event(my_qp->wait_completion, !atomic_read(&my_qp->nr_events)); | |
2182 | ||
fab97220 HS |
2183 | h_ret = hipz_h_destroy_qp(shca->ipz_hca_handle, my_qp); |
2184 | if (h_ret != H_SUCCESS) { | |
3750f605 | 2185 | ehca_err(dev, "hipz_h_destroy_qp() failed h_ret=%lli " |
fab97220 HS |
2186 | "ehca_qp=%p qp_num=%x", h_ret, my_qp, qp_num); |
2187 | return ehca2ib_return_code(h_ret); | |
2188 | } | |
2189 | ||
2190 | port_num = my_qp->init_attr.port_num; | |
2191 | qp_type = my_qp->init_attr.qp_type; | |
2192 | ||
bbdd267e HNN |
2193 | if (qp_type == IB_QPT_SMI || qp_type == IB_QPT_GSI) { |
2194 | spin_lock_irqsave(&sport->mod_sqp_lock, flags); | |
2195 | kfree(my_qp->mod_qp_parm); | |
2196 | my_qp->mod_qp_parm = NULL; | |
2197 | shca->sport[port_num - 1].ibqp_sqp[qp_type] = NULL; | |
2198 | spin_unlock_irqrestore(&sport->mod_sqp_lock, flags); | |
2199 | } | |
2200 | ||
fab97220 HS |
2201 | /* no support for IB_QPT_SMI yet */ |
2202 | if (qp_type == IB_QPT_GSI) { | |
2203 | struct ib_event event; | |
a6a12947 | 2204 | ehca_info(dev, "device %s: port %x is inactive.", |
b9012e0a | 2205 | shca->ib_device.name, port_num); |
fab97220 HS |
2206 | event.device = &shca->ib_device; |
2207 | event.event = IB_EVENT_PORT_ERR; | |
2208 | event.element.port_num = port_num; | |
2209 | shca->sport[port_num - 1].port_state = IB_PORT_DOWN; | |
2210 | ib_dispatch_event(&event); | |
2211 | } | |
2212 | ||
b9012e0a | 2213 | if (HAS_RQ(my_qp)) { |
e2f81daf | 2214 | ipz_queue_dtor(my_pd, &my_qp->ipz_rqueue); |
1988d1fa SR |
2215 | if (!is_user) |
2216 | vfree(my_qp->rq_map.map); | |
b9012e0a | 2217 | } |
6773f079 | 2218 | if (HAS_SQ(my_qp)) { |
e2f81daf | 2219 | ipz_queue_dtor(my_pd, &my_qp->ipz_squeue); |
1988d1fa SR |
2220 | if (!is_user) |
2221 | vfree(my_qp->sq_map.map); | |
6773f079 | 2222 | } |
fab97220 | 2223 | kmem_cache_free(qp_cache, my_qp); |
d227fa72 | 2224 | atomic_dec(&shca->num_qps); |
fab97220 HS |
2225 | return 0; |
2226 | } | |
2227 | ||
a6a12947 JF |
2228 | int ehca_destroy_qp(struct ib_qp *qp) |
2229 | { | |
2230 | return internal_destroy_qp(qp->device, | |
2231 | container_of(qp, struct ehca_qp, ib_qp), | |
2232 | qp->uobject); | |
2233 | } | |
2234 | ||
2235 | int ehca_destroy_srq(struct ib_srq *srq) | |
2236 | { | |
2237 | return internal_destroy_qp(srq->device, | |
2238 | container_of(srq, struct ehca_qp, ib_srq), | |
2239 | srq->uobject); | |
2240 | } | |
2241 | ||
fab97220 HS |
2242 | int ehca_init_qp_cache(void) |
2243 | { | |
2244 | qp_cache = kmem_cache_create("ehca_cache_qp", | |
2245 | sizeof(struct ehca_qp), 0, | |
2246 | SLAB_HWCACHE_ALIGN, | |
20c2df83 | 2247 | NULL); |
fab97220 HS |
2248 | if (!qp_cache) |
2249 | return -ENOMEM; | |
2250 | return 0; | |
2251 | } | |
2252 | ||
2253 | void ehca_cleanup_qp_cache(void) | |
2254 | { | |
2255 | if (qp_cache) | |
2256 | kmem_cache_destroy(qp_cache); | |
2257 | } |