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3c2d774c | 1 | /* |
fa6c87d5 | 2 | * Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved. |
3c2d774c GS |
3 | * |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | * | |
32 | */ | |
33 | ||
34 | #include <linux/module.h> | |
35 | #include <linux/moduleparam.h> | |
36 | #include <linux/random.h> | |
37 | #include <linux/highmem.h> | |
5a0e3ad6 | 38 | #include <linux/slab.h> |
3c2d774c GS |
39 | #include <asm/byteorder.h> |
40 | ||
41 | #include <rdma/ib_verbs.h> | |
42 | #include <rdma/iw_cm.h> | |
43 | #include <rdma/ib_user_verbs.h> | |
44 | ||
45 | #include "nes.h" | |
46 | ||
47 | #include <rdma/ib_umem.h> | |
48 | ||
49 | atomic_t mod_qp_timouts; | |
50 | atomic_t qps_created; | |
51 | atomic_t sw_qps_destroyed; | |
52 | ||
1a855fbf | 53 | static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev); |
3c2d774c GS |
54 | |
55 | /** | |
56 | * nes_alloc_mw | |
57 | */ | |
58 | static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd) { | |
3c2d774c GS |
59 | struct nes_pd *nespd = to_nespd(ibpd); |
60 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | |
61 | struct nes_device *nesdev = nesvnic->nesdev; | |
62 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
63 | struct nes_cqp_request *cqp_request; | |
64 | struct nes_mr *nesmr; | |
65 | struct ib_mw *ibmw; | |
66 | struct nes_hw_cqp_wqe *cqp_wqe; | |
67 | int ret; | |
68 | u32 stag; | |
69 | u32 stag_index = 0; | |
70 | u32 next_stag_index = 0; | |
71 | u32 driver_key = 0; | |
72 | u8 stag_key = 0; | |
73 | ||
74 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); | |
75 | stag_key = (u8)next_stag_index; | |
76 | ||
77 | driver_key = 0; | |
78 | ||
79 | next_stag_index >>= 8; | |
80 | next_stag_index %= nesadapter->max_mr; | |
81 | ||
82 | ret = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, | |
83 | nesadapter->max_mr, &stag_index, &next_stag_index); | |
84 | if (ret) { | |
85 | return ERR_PTR(ret); | |
86 | } | |
87 | ||
88 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | |
89 | if (!nesmr) { | |
90 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
91 | return ERR_PTR(-ENOMEM); | |
92 | } | |
93 | ||
94 | stag = stag_index << 8; | |
95 | stag |= driver_key; | |
96 | stag += (u32)stag_key; | |
97 | ||
98 | nes_debug(NES_DBG_MR, "Registering STag 0x%08X, index = 0x%08X\n", | |
99 | stag, stag_index); | |
100 | ||
101 | /* Register the region with the adapter */ | |
102 | cqp_request = nes_get_cqp_request(nesdev); | |
103 | if (cqp_request == NULL) { | |
104 | kfree(nesmr); | |
105 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
106 | return ERR_PTR(-ENOMEM); | |
107 | } | |
108 | ||
109 | cqp_request->waiting = 1; | |
110 | cqp_wqe = &cqp_request->cqp_wqe; | |
111 | ||
112 | cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = | |
113 | cpu_to_le32( NES_CQP_ALLOCATE_STAG | NES_CQP_STAG_RIGHTS_REMOTE_READ | | |
114 | NES_CQP_STAG_RIGHTS_REMOTE_WRITE | NES_CQP_STAG_VA_TO | | |
115 | NES_CQP_STAG_REM_ACC_EN); | |
116 | ||
117 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
118 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX, (nespd->pd_id & 0x00007fff)); | |
119 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag); | |
120 | ||
121 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 122 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
123 | |
124 | /* Wait for CQP */ | |
125 | ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0), | |
126 | NES_EVENT_TIMEOUT); | |
127 | nes_debug(NES_DBG_MR, "Register STag 0x%08X completed, wait_event_timeout ret = %u," | |
128 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
129 | stag, ret, cqp_request->major_code, cqp_request->minor_code); | |
130 | if ((!ret) || (cqp_request->major_code)) { | |
1ff66e8c | 131 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
132 | kfree(nesmr); |
133 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
134 | if (!ret) { | |
135 | return ERR_PTR(-ETIME); | |
136 | } else { | |
137 | return ERR_PTR(-ENOMEM); | |
138 | } | |
3c2d774c | 139 | } |
1ff66e8c | 140 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
141 | |
142 | nesmr->ibmw.rkey = stag; | |
143 | nesmr->mode = IWNES_MEMREG_TYPE_MW; | |
144 | ibmw = &nesmr->ibmw; | |
145 | nesmr->pbl_4k = 0; | |
146 | nesmr->pbls_used = 0; | |
147 | ||
148 | return ibmw; | |
149 | } | |
150 | ||
151 | ||
152 | /** | |
153 | * nes_dealloc_mw | |
154 | */ | |
155 | static int nes_dealloc_mw(struct ib_mw *ibmw) | |
156 | { | |
157 | struct nes_mr *nesmr = to_nesmw(ibmw); | |
158 | struct nes_vnic *nesvnic = to_nesvnic(ibmw->device); | |
159 | struct nes_device *nesdev = nesvnic->nesdev; | |
160 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
161 | struct nes_hw_cqp_wqe *cqp_wqe; | |
162 | struct nes_cqp_request *cqp_request; | |
163 | int err = 0; | |
3c2d774c GS |
164 | int ret; |
165 | ||
166 | /* Deallocate the window with the adapter */ | |
167 | cqp_request = nes_get_cqp_request(nesdev); | |
168 | if (cqp_request == NULL) { | |
169 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | |
170 | return -ENOMEM; | |
171 | } | |
172 | cqp_request->waiting = 1; | |
173 | cqp_wqe = &cqp_request->cqp_wqe; | |
174 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
175 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, NES_CQP_DEALLOCATE_STAG); | |
176 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, ibmw->rkey); | |
177 | ||
178 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 179 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
180 | |
181 | /* Wait for CQP */ | |
182 | nes_debug(NES_DBG_MR, "Waiting for deallocate STag 0x%08X to complete.\n", | |
183 | ibmw->rkey); | |
184 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | |
185 | NES_EVENT_TIMEOUT); | |
186 | nes_debug(NES_DBG_MR, "Deallocate STag completed, wait_event_timeout ret = %u," | |
187 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
188 | ret, cqp_request->major_code, cqp_request->minor_code); | |
1ff66e8c RD |
189 | if (!ret) |
190 | err = -ETIME; | |
191 | else if (cqp_request->major_code) | |
192 | err = -EIO; | |
193 | ||
194 | nes_put_cqp_request(nesdev, cqp_request); | |
3c2d774c GS |
195 | |
196 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | |
197 | (ibmw->rkey & 0x0fffff00) >> 8); | |
198 | kfree(nesmr); | |
199 | ||
200 | return err; | |
201 | } | |
202 | ||
203 | ||
204 | /** | |
205 | * nes_bind_mw | |
206 | */ | |
207 | static int nes_bind_mw(struct ib_qp *ibqp, struct ib_mw *ibmw, | |
208 | struct ib_mw_bind *ibmw_bind) | |
209 | { | |
210 | u64 u64temp; | |
211 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | |
212 | struct nes_device *nesdev = nesvnic->nesdev; | |
213 | /* struct nes_mr *nesmr = to_nesmw(ibmw); */ | |
214 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
215 | struct nes_hw_qp_wqe *wqe; | |
216 | unsigned long flags = 0; | |
217 | u32 head; | |
218 | u32 wqe_misc = 0; | |
219 | u32 qsize; | |
220 | ||
221 | if (nesqp->ibqp_state > IB_QPS_RTS) | |
222 | return -EINVAL; | |
223 | ||
5880ff19 | 224 | spin_lock_irqsave(&nesqp->lock, flags); |
3c2d774c GS |
225 | |
226 | head = nesqp->hwqp.sq_head; | |
227 | qsize = nesqp->hwqp.sq_tail; | |
228 | ||
229 | /* Check for SQ overflow */ | |
230 | if (((head + (2 * qsize) - nesqp->hwqp.sq_tail) % qsize) == (qsize - 1)) { | |
5880ff19 | 231 | spin_unlock_irqrestore(&nesqp->lock, flags); |
831d06cf | 232 | return -ENOMEM; |
3c2d774c GS |
233 | } |
234 | ||
235 | wqe = &nesqp->hwqp.sq_vbase[head]; | |
236 | /* nes_debug(NES_DBG_MR, "processing sq wqe at %p, head = %u.\n", wqe, head); */ | |
237 | nes_fill_init_qp_wqe(wqe, nesqp, head); | |
238 | u64temp = ibmw_bind->wr_id; | |
239 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, u64temp); | |
240 | wqe_misc = NES_IWARP_SQ_OP_BIND; | |
241 | ||
242 | wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE; | |
243 | ||
244 | if (ibmw_bind->send_flags & IB_SEND_SIGNALED) | |
245 | wqe_misc |= NES_IWARP_SQ_WQE_SIGNALED_COMPL; | |
246 | ||
247 | if (ibmw_bind->mw_access_flags & IB_ACCESS_REMOTE_WRITE) { | |
248 | wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE; | |
249 | } | |
250 | if (ibmw_bind->mw_access_flags & IB_ACCESS_REMOTE_READ) { | |
251 | wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_READ; | |
252 | } | |
253 | ||
254 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_MISC_IDX, wqe_misc); | |
255 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MR_IDX, ibmw_bind->mr->lkey); | |
256 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MW_IDX, ibmw->rkey); | |
257 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_LENGTH_LOW_IDX, | |
258 | ibmw_bind->length); | |
259 | wqe->wqe_words[NES_IWARP_SQ_BIND_WQE_LENGTH_HIGH_IDX] = 0; | |
260 | u64temp = (u64)ibmw_bind->addr; | |
261 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_VA_FBO_LOW_IDX, u64temp); | |
262 | ||
263 | head++; | |
264 | if (head >= qsize) | |
265 | head = 0; | |
266 | ||
267 | nesqp->hwqp.sq_head = head; | |
268 | barrier(); | |
269 | ||
270 | nes_write32(nesdev->regs+NES_WQE_ALLOC, | |
271 | (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id); | |
272 | ||
5880ff19 | 273 | spin_unlock_irqrestore(&nesqp->lock, flags); |
3c2d774c GS |
274 | |
275 | return 0; | |
276 | } | |
277 | ||
278 | ||
e293a26f CT |
279 | /* |
280 | * nes_alloc_fast_mr | |
3c2d774c | 281 | */ |
e293a26f CT |
282 | static int alloc_fast_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd, |
283 | u32 stag, u32 page_count) | |
3c2d774c | 284 | { |
3c2d774c | 285 | struct nes_hw_cqp_wqe *cqp_wqe; |
e293a26f CT |
286 | struct nes_cqp_request *cqp_request; |
287 | unsigned long flags; | |
3c2d774c | 288 | int ret; |
e293a26f | 289 | struct nes_adapter *nesadapter = nesdev->nesadapter; |
3c2d774c | 290 | u32 opcode = 0; |
e293a26f CT |
291 | u16 major_code; |
292 | u64 region_length = page_count * PAGE_SIZE; | |
3c2d774c | 293 | |
3c2d774c | 294 | |
3c2d774c GS |
295 | cqp_request = nes_get_cqp_request(nesdev); |
296 | if (cqp_request == NULL) { | |
297 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | |
e293a26f | 298 | return -ENOMEM; |
3c2d774c | 299 | } |
e293a26f CT |
300 | nes_debug(NES_DBG_MR, "alloc_fast_reg_mr: page_count = %d, " |
301 | "region_length = %llu\n", | |
302 | page_count, region_length); | |
3c2d774c GS |
303 | cqp_request->waiting = 1; |
304 | cqp_wqe = &cqp_request->cqp_wqe; | |
305 | ||
e293a26f CT |
306 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); |
307 | if (nesadapter->free_4kpbl > 0) { | |
308 | nesadapter->free_4kpbl--; | |
309 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
310 | } else { | |
311 | /* No 4kpbl's available: */ | |
312 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
313 | nes_debug(NES_DBG_MR, "Out of Pbls\n"); | |
314 | nes_free_cqp_request(nesdev, cqp_request); | |
315 | return -ENOMEM; | |
3c2d774c GS |
316 | } |
317 | ||
e293a26f CT |
318 | opcode = NES_CQP_ALLOCATE_STAG | NES_CQP_STAG_MR | |
319 | NES_CQP_STAG_PBL_BLK_SIZE | NES_CQP_STAG_VA_TO | | |
320 | NES_CQP_STAG_REM_ACC_EN; | |
321 | /* | |
322 | * The current OFED API does not support the zero based TO option. | |
323 | * If added then need to changed the NES_CQP_STAG_VA* option. Also, | |
324 | * the API does not support that ability to have the MR set for local | |
325 | * access only when created and not allow the SQ op to override. Given | |
326 | * this the remote enable must be set here. | |
327 | */ | |
3c2d774c GS |
328 | |
329 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
330 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | |
e293a26f | 331 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX, 1); |
3c2d774c | 332 | |
e293a26f CT |
333 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] = |
334 | cpu_to_le32((u32)(region_length >> 8) & 0xff000000); | |
335 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] |= | |
336 | cpu_to_le32(nespd->pd_id & 0x00007fff); | |
337 | ||
338 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag); | |
339 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_VA_LOW_IDX, 0); | |
340 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_LOW_IDX, 0); | |
341 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, 0); | |
342 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_LEN_IDX, (page_count * 8)); | |
343 | cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(NES_CQP_STAG_PBL_BLK_SIZE); | |
344 | barrier(); | |
3c2d774c GS |
345 | |
346 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 347 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
348 | |
349 | /* Wait for CQP */ | |
e293a26f CT |
350 | ret = wait_event_timeout(cqp_request->waitq, |
351 | (0 != cqp_request->request_done), | |
352 | NES_EVENT_TIMEOUT); | |
353 | ||
354 | nes_debug(NES_DBG_MR, "Allocate STag 0x%08X completed, " | |
355 | "wait_event_timeout ret = %u, CQP Major:Minor codes = " | |
356 | "0x%04X:0x%04X.\n", stag, ret, cqp_request->major_code, | |
357 | cqp_request->minor_code); | |
358 | major_code = cqp_request->major_code; | |
1ff66e8c | 359 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c | 360 | |
e293a26f | 361 | if (!ret || major_code) { |
35c6d694 | 362 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); |
e293a26f | 363 | nesadapter->free_4kpbl++; |
35c6d694 CT |
364 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); |
365 | } | |
366 | ||
e293a26f CT |
367 | if (!ret) |
368 | return -ETIME; | |
369 | else if (major_code) | |
370 | return -EIO; | |
371 | return 0; | |
3c2d774c GS |
372 | } |
373 | ||
e293a26f CT |
374 | /* |
375 | * nes_alloc_fast_reg_mr | |
3c2d774c | 376 | */ |
53978b46 | 377 | static struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list_len) |
3c2d774c | 378 | { |
e293a26f CT |
379 | struct nes_pd *nespd = to_nespd(ibpd); |
380 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | |
3c2d774c | 381 | struct nes_device *nesdev = nesvnic->nesdev; |
35c6d694 | 382 | struct nes_adapter *nesadapter = nesdev->nesadapter; |
3c2d774c | 383 | |
e293a26f CT |
384 | u32 next_stag_index; |
385 | u8 stag_key = 0; | |
386 | u32 driver_key = 0; | |
387 | int err = 0; | |
388 | u32 stag_index = 0; | |
389 | struct nes_mr *nesmr; | |
390 | u32 stag; | |
391 | int ret; | |
392 | struct ib_mr *ibmr; | |
393 | /* | |
394 | * Note: Set to always use a fixed length single page entry PBL. This is to allow | |
395 | * for the fast_reg_mr operation to always know the size of the PBL. | |
396 | */ | |
397 | if (max_page_list_len > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64))) | |
398 | return ERR_PTR(-E2BIG); | |
35c6d694 | 399 | |
e293a26f CT |
400 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); |
401 | stag_key = (u8)next_stag_index; | |
402 | next_stag_index >>= 8; | |
403 | next_stag_index %= nesadapter->max_mr; | |
dae5d13a | 404 | |
e293a26f CT |
405 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, |
406 | nesadapter->max_mr, &stag_index, | |
407 | &next_stag_index); | |
408 | if (err) | |
409 | return ERR_PTR(err); | |
410 | ||
411 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | |
412 | if (!nesmr) { | |
413 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
414 | return ERR_PTR(-ENOMEM); | |
35c6d694 | 415 | } |
3c2d774c | 416 | |
e293a26f CT |
417 | stag = stag_index << 8; |
418 | stag |= driver_key; | |
419 | stag += (u32)stag_key; | |
3c2d774c | 420 | |
e293a26f CT |
421 | nes_debug(NES_DBG_MR, "Allocating STag 0x%08X index = 0x%08X\n", |
422 | stag, stag_index); | |
3c2d774c | 423 | |
e293a26f CT |
424 | ret = alloc_fast_reg_mr(nesdev, nespd, stag, max_page_list_len); |
425 | ||
426 | if (ret == 0) { | |
427 | nesmr->ibmr.rkey = stag; | |
428 | nesmr->ibmr.lkey = stag; | |
429 | nesmr->mode = IWNES_MEMREG_TYPE_FMEM; | |
430 | ibmr = &nesmr->ibmr; | |
431 | } else { | |
432 | kfree(nesmr); | |
433 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
434 | ibmr = ERR_PTR(-ENOMEM); | |
435 | } | |
436 | return ibmr; | |
437 | } | |
438 | ||
439 | /* | |
440 | * nes_alloc_fast_reg_page_list | |
3c2d774c | 441 | */ |
e293a26f CT |
442 | static struct ib_fast_reg_page_list *nes_alloc_fast_reg_page_list( |
443 | struct ib_device *ibdev, | |
444 | int page_list_len) | |
3c2d774c | 445 | { |
e293a26f CT |
446 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); |
447 | struct nes_device *nesdev = nesvnic->nesdev; | |
448 | struct ib_fast_reg_page_list *pifrpl; | |
449 | struct nes_ib_fast_reg_page_list *pnesfrpl; | |
3c2d774c | 450 | |
e293a26f CT |
451 | if (page_list_len > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64))) |
452 | return ERR_PTR(-E2BIG); | |
453 | /* | |
454 | * Allocate the ib_fast_reg_page_list structure, the | |
455 | * nes_fast_bpl structure, and the PLB table. | |
456 | */ | |
457 | pnesfrpl = kmalloc(sizeof(struct nes_ib_fast_reg_page_list) + | |
458 | page_list_len * sizeof(u64), GFP_KERNEL); | |
459 | ||
460 | if (!pnesfrpl) | |
461 | return ERR_PTR(-ENOMEM); | |
3c2d774c | 462 | |
e293a26f CT |
463 | pifrpl = &pnesfrpl->ibfrpl; |
464 | pifrpl->page_list = &pnesfrpl->pbl; | |
465 | pifrpl->max_page_list_len = page_list_len; | |
466 | /* | |
467 | * Allocate the WQE PBL | |
468 | */ | |
469 | pnesfrpl->nes_wqe_pbl.kva = pci_alloc_consistent(nesdev->pcidev, | |
470 | page_list_len * sizeof(u64), | |
471 | &pnesfrpl->nes_wqe_pbl.paddr); | |
472 | ||
473 | if (!pnesfrpl->nes_wqe_pbl.kva) { | |
474 | kfree(pnesfrpl); | |
475 | return ERR_PTR(-ENOMEM); | |
476 | } | |
477 | nes_debug(NES_DBG_MR, "nes_alloc_fast_reg_pbl: nes_frpl = %p, " | |
478 | "ibfrpl = %p, ibfrpl.page_list = %p, pbl.kva = %p, " | |
479 | "pbl.paddr= %p\n", pnesfrpl, &pnesfrpl->ibfrpl, | |
480 | pnesfrpl->ibfrpl.page_list, pnesfrpl->nes_wqe_pbl.kva, | |
481 | (void *)pnesfrpl->nes_wqe_pbl.paddr); | |
482 | ||
483 | return pifrpl; | |
484 | } | |
485 | ||
486 | /* | |
487 | * nes_free_fast_reg_page_list | |
3c2d774c | 488 | */ |
e293a26f | 489 | static void nes_free_fast_reg_page_list(struct ib_fast_reg_page_list *pifrpl) |
3c2d774c | 490 | { |
e293a26f CT |
491 | struct nes_vnic *nesvnic = to_nesvnic(pifrpl->device); |
492 | struct nes_device *nesdev = nesvnic->nesdev; | |
493 | struct nes_ib_fast_reg_page_list *pnesfrpl; | |
494 | ||
495 | pnesfrpl = container_of(pifrpl, struct nes_ib_fast_reg_page_list, ibfrpl); | |
496 | /* | |
497 | * Free the WQE PBL. | |
498 | */ | |
499 | pci_free_consistent(nesdev->pcidev, | |
500 | pifrpl->max_page_list_len * sizeof(u64), | |
501 | pnesfrpl->nes_wqe_pbl.kva, | |
502 | pnesfrpl->nes_wqe_pbl.paddr); | |
503 | /* | |
504 | * Free the PBL structure | |
505 | */ | |
506 | kfree(pnesfrpl); | |
3c2d774c GS |
507 | } |
508 | ||
3c2d774c GS |
509 | /** |
510 | * nes_query_device | |
511 | */ | |
512 | static int nes_query_device(struct ib_device *ibdev, struct ib_device_attr *props) | |
513 | { | |
514 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | |
515 | struct nes_device *nesdev = nesvnic->nesdev; | |
516 | struct nes_ib_device *nesibdev = nesvnic->nesibdev; | |
517 | ||
518 | memset(props, 0, sizeof(*props)); | |
519 | memcpy(&props->sys_image_guid, nesvnic->netdev->dev_addr, 6); | |
520 | ||
521 | props->fw_ver = nesdev->nesadapter->fw_ver; | |
522 | props->device_cap_flags = nesdev->nesadapter->device_cap_flags; | |
523 | props->vendor_id = nesdev->nesadapter->vendor_id; | |
524 | props->vendor_part_id = nesdev->nesadapter->vendor_part_id; | |
525 | props->hw_ver = nesdev->nesadapter->hw_rev; | |
526 | props->max_mr_size = 0x80000000; | |
527 | props->max_qp = nesibdev->max_qp; | |
528 | props->max_qp_wr = nesdev->nesadapter->max_qp_wr - 2; | |
529 | props->max_sge = nesdev->nesadapter->max_sge; | |
530 | props->max_cq = nesibdev->max_cq; | |
5924aea6 | 531 | props->max_cqe = nesdev->nesadapter->max_cqe; |
3c2d774c GS |
532 | props->max_mr = nesibdev->max_mr; |
533 | props->max_mw = nesibdev->max_mr; | |
534 | props->max_pd = nesibdev->max_pd; | |
535 | props->max_sge_rd = 1; | |
536 | switch (nesdev->nesadapter->max_irrq_wr) { | |
537 | case 0: | |
8ac7f6e1 | 538 | props->max_qp_rd_atom = 2; |
3c2d774c GS |
539 | break; |
540 | case 1: | |
8ac7f6e1 | 541 | props->max_qp_rd_atom = 8; |
3c2d774c GS |
542 | break; |
543 | case 2: | |
8ac7f6e1 | 544 | props->max_qp_rd_atom = 32; |
3c2d774c GS |
545 | break; |
546 | case 3: | |
8ac7f6e1 | 547 | props->max_qp_rd_atom = 64; |
3c2d774c GS |
548 | break; |
549 | default: | |
550 | props->max_qp_rd_atom = 0; | |
551 | } | |
66388d67 | 552 | props->max_qp_init_rd_atom = props->max_qp_rd_atom; |
3c2d774c GS |
553 | props->atomic_cap = IB_ATOMIC_NONE; |
554 | props->max_map_per_fmr = 1; | |
555 | ||
556 | return 0; | |
557 | } | |
558 | ||
559 | ||
560 | /** | |
561 | * nes_query_port | |
562 | */ | |
563 | static int nes_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props) | |
564 | { | |
cd1d3f7a CT |
565 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); |
566 | struct net_device *netdev = nesvnic->netdev; | |
567 | ||
3c2d774c GS |
568 | memset(props, 0, sizeof(*props)); |
569 | ||
cd1d3f7a CT |
570 | props->max_mtu = IB_MTU_4096; |
571 | ||
572 | if (netdev->mtu >= 4096) | |
573 | props->active_mtu = IB_MTU_4096; | |
574 | else if (netdev->mtu >= 2048) | |
575 | props->active_mtu = IB_MTU_2048; | |
576 | else if (netdev->mtu >= 1024) | |
577 | props->active_mtu = IB_MTU_1024; | |
578 | else if (netdev->mtu >= 512) | |
579 | props->active_mtu = IB_MTU_512; | |
580 | else | |
581 | props->active_mtu = IB_MTU_256; | |
582 | ||
3c2d774c GS |
583 | props->lid = 1; |
584 | props->lmc = 0; | |
585 | props->sm_lid = 0; | |
586 | props->sm_sl = 0; | |
cd1d3f7a CT |
587 | if (nesvnic->linkup) |
588 | props->state = IB_PORT_ACTIVE; | |
589 | else | |
590 | props->state = IB_PORT_DOWN; | |
3c2d774c GS |
591 | props->phys_state = 0; |
592 | props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_REINIT_SUP | | |
593 | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; | |
594 | props->gid_tbl_len = 1; | |
595 | props->pkey_tbl_len = 1; | |
596 | props->qkey_viol_cntr = 0; | |
597 | props->active_width = IB_WIDTH_4X; | |
598 | props->active_speed = 1; | |
599 | props->max_msg_sz = 0x80000000; | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | ||
605 | /** | |
606 | * nes_modify_port | |
607 | */ | |
608 | static int nes_modify_port(struct ib_device *ibdev, u8 port, | |
609 | int port_modify_mask, struct ib_port_modify *props) | |
610 | { | |
611 | return 0; | |
612 | } | |
613 | ||
614 | ||
615 | /** | |
616 | * nes_query_pkey | |
617 | */ | |
618 | static int nes_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) | |
619 | { | |
620 | *pkey = 0; | |
621 | return 0; | |
622 | } | |
623 | ||
624 | ||
625 | /** | |
626 | * nes_query_gid | |
627 | */ | |
628 | static int nes_query_gid(struct ib_device *ibdev, u8 port, | |
629 | int index, union ib_gid *gid) | |
630 | { | |
631 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | |
632 | ||
633 | memset(&(gid->raw[0]), 0, sizeof(gid->raw)); | |
634 | memcpy(&(gid->raw[0]), nesvnic->netdev->dev_addr, 6); | |
635 | ||
636 | return 0; | |
637 | } | |
638 | ||
639 | ||
640 | /** | |
641 | * nes_alloc_ucontext - Allocate the user context data structure. This keeps track | |
642 | * of all objects associated with a particular user-mode client. | |
643 | */ | |
644 | static struct ib_ucontext *nes_alloc_ucontext(struct ib_device *ibdev, | |
645 | struct ib_udata *udata) | |
646 | { | |
647 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | |
648 | struct nes_device *nesdev = nesvnic->nesdev; | |
649 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
650 | struct nes_alloc_ucontext_req req; | |
651 | struct nes_alloc_ucontext_resp uresp; | |
652 | struct nes_ucontext *nes_ucontext; | |
653 | struct nes_ib_device *nesibdev = nesvnic->nesibdev; | |
654 | ||
655 | ||
656 | if (ib_copy_from_udata(&req, udata, sizeof(struct nes_alloc_ucontext_req))) { | |
657 | printk(KERN_ERR PFX "Invalid structure size on allocate user context.\n"); | |
658 | return ERR_PTR(-EINVAL); | |
659 | } | |
660 | ||
661 | if (req.userspace_ver != NES_ABI_USERSPACE_VER) { | |
662 | printk(KERN_ERR PFX "Invalid userspace driver version detected. Detected version %d, should be %d\n", | |
663 | req.userspace_ver, NES_ABI_USERSPACE_VER); | |
664 | return ERR_PTR(-EINVAL); | |
665 | } | |
666 | ||
667 | ||
668 | memset(&uresp, 0, sizeof uresp); | |
669 | ||
670 | uresp.max_qps = nesibdev->max_qp; | |
671 | uresp.max_pds = nesibdev->max_pd; | |
672 | uresp.wq_size = nesdev->nesadapter->max_qp_wr * 2; | |
673 | uresp.virtwq = nesadapter->virtwq; | |
674 | uresp.kernel_ver = NES_ABI_KERNEL_VER; | |
675 | ||
676 | nes_ucontext = kzalloc(sizeof *nes_ucontext, GFP_KERNEL); | |
677 | if (!nes_ucontext) | |
678 | return ERR_PTR(-ENOMEM); | |
679 | ||
680 | nes_ucontext->nesdev = nesdev; | |
681 | nes_ucontext->mmap_wq_offset = uresp.max_pds; | |
682 | nes_ucontext->mmap_cq_offset = nes_ucontext->mmap_wq_offset + | |
683 | ((sizeof(struct nes_hw_qp_wqe) * uresp.max_qps * 2) + PAGE_SIZE-1) / | |
684 | PAGE_SIZE; | |
685 | ||
686 | ||
687 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { | |
688 | kfree(nes_ucontext); | |
689 | return ERR_PTR(-EFAULT); | |
690 | } | |
691 | ||
692 | INIT_LIST_HEAD(&nes_ucontext->cq_reg_mem_list); | |
693 | INIT_LIST_HEAD(&nes_ucontext->qp_reg_mem_list); | |
694 | atomic_set(&nes_ucontext->usecnt, 1); | |
695 | return &nes_ucontext->ibucontext; | |
696 | } | |
697 | ||
698 | ||
699 | /** | |
700 | * nes_dealloc_ucontext | |
701 | */ | |
702 | static int nes_dealloc_ucontext(struct ib_ucontext *context) | |
703 | { | |
704 | /* struct nes_vnic *nesvnic = to_nesvnic(context->device); */ | |
705 | /* struct nes_device *nesdev = nesvnic->nesdev; */ | |
706 | struct nes_ucontext *nes_ucontext = to_nesucontext(context); | |
707 | ||
708 | if (!atomic_dec_and_test(&nes_ucontext->usecnt)) | |
709 | return 0; | |
710 | kfree(nes_ucontext); | |
711 | return 0; | |
712 | } | |
713 | ||
714 | ||
715 | /** | |
716 | * nes_mmap | |
717 | */ | |
718 | static int nes_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
719 | { | |
720 | unsigned long index; | |
721 | struct nes_vnic *nesvnic = to_nesvnic(context->device); | |
722 | struct nes_device *nesdev = nesvnic->nesdev; | |
723 | /* struct nes_adapter *nesadapter = nesdev->nesadapter; */ | |
724 | struct nes_ucontext *nes_ucontext; | |
725 | struct nes_qp *nesqp; | |
726 | ||
727 | nes_ucontext = to_nesucontext(context); | |
728 | ||
729 | ||
730 | if (vma->vm_pgoff >= nes_ucontext->mmap_wq_offset) { | |
731 | index = (vma->vm_pgoff - nes_ucontext->mmap_wq_offset) * PAGE_SIZE; | |
732 | index /= ((sizeof(struct nes_hw_qp_wqe) * nesdev->nesadapter->max_qp_wr * 2) + | |
733 | PAGE_SIZE-1) & (~(PAGE_SIZE-1)); | |
734 | if (!test_bit(index, nes_ucontext->allocated_wqs)) { | |
735 | nes_debug(NES_DBG_MMAP, "wq %lu not allocated\n", index); | |
736 | return -EFAULT; | |
737 | } | |
738 | nesqp = nes_ucontext->mmap_nesqp[index]; | |
739 | if (nesqp == NULL) { | |
740 | nes_debug(NES_DBG_MMAP, "wq %lu has a NULL QP base.\n", index); | |
741 | return -EFAULT; | |
742 | } | |
743 | if (remap_pfn_range(vma, vma->vm_start, | |
744 | virt_to_phys(nesqp->hwqp.sq_vbase) >> PAGE_SHIFT, | |
745 | vma->vm_end - vma->vm_start, | |
746 | vma->vm_page_prot)) { | |
747 | nes_debug(NES_DBG_MMAP, "remap_pfn_range failed.\n"); | |
748 | return -EAGAIN; | |
749 | } | |
750 | vma->vm_private_data = nesqp; | |
751 | return 0; | |
752 | } else { | |
753 | index = vma->vm_pgoff; | |
754 | if (!test_bit(index, nes_ucontext->allocated_doorbells)) | |
755 | return -EFAULT; | |
756 | ||
757 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
758 | if (io_remap_pfn_range(vma, vma->vm_start, | |
759 | (nesdev->doorbell_start + | |
760 | ((nes_ucontext->mmap_db_index[index] - nesdev->base_doorbell_index) * 4096)) | |
761 | >> PAGE_SHIFT, PAGE_SIZE, vma->vm_page_prot)) | |
762 | return -EAGAIN; | |
763 | vma->vm_private_data = nes_ucontext; | |
764 | return 0; | |
765 | } | |
766 | ||
767 | return -ENOSYS; | |
768 | } | |
769 | ||
770 | ||
771 | /** | |
772 | * nes_alloc_pd | |
773 | */ | |
774 | static struct ib_pd *nes_alloc_pd(struct ib_device *ibdev, | |
775 | struct ib_ucontext *context, struct ib_udata *udata) | |
776 | { | |
777 | struct nes_pd *nespd; | |
778 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | |
779 | struct nes_device *nesdev = nesvnic->nesdev; | |
780 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
781 | struct nes_ucontext *nesucontext; | |
782 | struct nes_alloc_pd_resp uresp; | |
783 | u32 pd_num = 0; | |
784 | int err; | |
785 | ||
786 | nes_debug(NES_DBG_PD, "nesvnic=%p, netdev=%p %s, ibdev=%p, context=%p, netdev refcnt=%u\n", | |
787 | nesvnic, nesdev->netdev[0], nesdev->netdev[0]->name, ibdev, context, | |
788 | atomic_read(&nesvnic->netdev->refcnt)); | |
789 | ||
790 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_pds, | |
791 | nesadapter->max_pd, &pd_num, &nesadapter->next_pd); | |
792 | if (err) { | |
793 | return ERR_PTR(err); | |
794 | } | |
795 | ||
796 | nespd = kzalloc(sizeof (struct nes_pd), GFP_KERNEL); | |
797 | if (!nespd) { | |
798 | nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num); | |
799 | return ERR_PTR(-ENOMEM); | |
800 | } | |
801 | ||
802 | nes_debug(NES_DBG_PD, "Allocating PD (%p) for ib device %s\n", | |
803 | nespd, nesvnic->nesibdev->ibdev.name); | |
804 | ||
805 | nespd->pd_id = (pd_num << (PAGE_SHIFT-12)) + nesadapter->base_pd; | |
806 | ||
807 | if (context) { | |
808 | nesucontext = to_nesucontext(context); | |
809 | nespd->mmap_db_index = find_next_zero_bit(nesucontext->allocated_doorbells, | |
810 | NES_MAX_USER_DB_REGIONS, nesucontext->first_free_db); | |
811 | nes_debug(NES_DBG_PD, "find_first_zero_biton doorbells returned %u, mapping pd_id %u.\n", | |
812 | nespd->mmap_db_index, nespd->pd_id); | |
65b07ec2 | 813 | if (nespd->mmap_db_index >= NES_MAX_USER_DB_REGIONS) { |
3c2d774c GS |
814 | nes_debug(NES_DBG_PD, "mmap_db_index > MAX\n"); |
815 | nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num); | |
816 | kfree(nespd); | |
817 | return ERR_PTR(-ENOMEM); | |
818 | } | |
819 | ||
820 | uresp.pd_id = nespd->pd_id; | |
821 | uresp.mmap_db_index = nespd->mmap_db_index; | |
822 | if (ib_copy_to_udata(udata, &uresp, sizeof (struct nes_alloc_pd_resp))) { | |
823 | nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num); | |
824 | kfree(nespd); | |
825 | return ERR_PTR(-EFAULT); | |
826 | } | |
827 | ||
828 | set_bit(nespd->mmap_db_index, nesucontext->allocated_doorbells); | |
829 | nesucontext->mmap_db_index[nespd->mmap_db_index] = nespd->pd_id; | |
830 | nesucontext->first_free_db = nespd->mmap_db_index + 1; | |
831 | } | |
832 | ||
833 | nes_debug(NES_DBG_PD, "PD%u structure located @%p.\n", nespd->pd_id, nespd); | |
834 | return &nespd->ibpd; | |
835 | } | |
836 | ||
837 | ||
838 | /** | |
839 | * nes_dealloc_pd | |
840 | */ | |
841 | static int nes_dealloc_pd(struct ib_pd *ibpd) | |
842 | { | |
843 | struct nes_ucontext *nesucontext; | |
844 | struct nes_pd *nespd = to_nespd(ibpd); | |
845 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | |
846 | struct nes_device *nesdev = nesvnic->nesdev; | |
847 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
848 | ||
849 | if ((ibpd->uobject) && (ibpd->uobject->context)) { | |
850 | nesucontext = to_nesucontext(ibpd->uobject->context); | |
851 | nes_debug(NES_DBG_PD, "Clearing bit %u from allocated doorbells\n", | |
852 | nespd->mmap_db_index); | |
853 | clear_bit(nespd->mmap_db_index, nesucontext->allocated_doorbells); | |
854 | nesucontext->mmap_db_index[nespd->mmap_db_index] = 0; | |
855 | if (nesucontext->first_free_db > nespd->mmap_db_index) { | |
856 | nesucontext->first_free_db = nespd->mmap_db_index; | |
857 | } | |
858 | } | |
859 | ||
860 | nes_debug(NES_DBG_PD, "Deallocating PD%u structure located @%p.\n", | |
861 | nespd->pd_id, nespd); | |
862 | nes_free_resource(nesadapter, nesadapter->allocated_pds, | |
863 | (nespd->pd_id-nesadapter->base_pd)>>(PAGE_SHIFT-12)); | |
864 | kfree(nespd); | |
865 | ||
866 | return 0; | |
867 | } | |
868 | ||
869 | ||
870 | /** | |
871 | * nes_create_ah | |
872 | */ | |
873 | static struct ib_ah *nes_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) | |
874 | { | |
875 | return ERR_PTR(-ENOSYS); | |
876 | } | |
877 | ||
878 | ||
879 | /** | |
880 | * nes_destroy_ah | |
881 | */ | |
882 | static int nes_destroy_ah(struct ib_ah *ah) | |
883 | { | |
884 | return -ENOSYS; | |
885 | } | |
886 | ||
887 | ||
888 | /** | |
889 | * nes_get_encoded_size | |
890 | */ | |
891 | static inline u8 nes_get_encoded_size(int *size) | |
892 | { | |
893 | u8 encoded_size = 0; | |
894 | if (*size <= 32) { | |
895 | *size = 32; | |
896 | encoded_size = 1; | |
897 | } else if (*size <= 128) { | |
898 | *size = 128; | |
899 | encoded_size = 2; | |
900 | } else if (*size <= 512) { | |
901 | *size = 512; | |
902 | encoded_size = 3; | |
903 | } | |
904 | return (encoded_size); | |
905 | } | |
906 | ||
907 | ||
908 | ||
909 | /** | |
910 | * nes_setup_virt_qp | |
911 | */ | |
912 | static int nes_setup_virt_qp(struct nes_qp *nesqp, struct nes_pbl *nespbl, | |
913 | struct nes_vnic *nesvnic, int sq_size, int rq_size) | |
914 | { | |
915 | unsigned long flags; | |
916 | void *mem; | |
917 | __le64 *pbl = NULL; | |
918 | __le64 *tpbl; | |
919 | __le64 *pblbuffer; | |
920 | struct nes_device *nesdev = nesvnic->nesdev; | |
921 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
922 | u32 pbl_entries; | |
923 | u8 rq_pbl_entries; | |
924 | u8 sq_pbl_entries; | |
925 | ||
926 | pbl_entries = nespbl->pbl_size >> 3; | |
71e0957c | 927 | nes_debug(NES_DBG_QP, "Userspace PBL, pbl_size=%u, pbl_entries = %d pbl_vbase=%p, pbl_pbase=%lx\n", |
3c2d774c GS |
928 | nespbl->pbl_size, pbl_entries, |
929 | (void *)nespbl->pbl_vbase, | |
71e0957c | 930 | (unsigned long) nespbl->pbl_pbase); |
3c2d774c GS |
931 | pbl = (__le64 *) nespbl->pbl_vbase; /* points to first pbl entry */ |
932 | /* now lets set the sq_vbase as well as rq_vbase addrs we will assign */ | |
933 | /* the first pbl to be fro the rq_vbase... */ | |
934 | rq_pbl_entries = (rq_size * sizeof(struct nes_hw_qp_wqe)) >> 12; | |
935 | sq_pbl_entries = (sq_size * sizeof(struct nes_hw_qp_wqe)) >> 12; | |
936 | nesqp->hwqp.sq_pbase = (le32_to_cpu(((__le32 *)pbl)[0])) | ((u64)((le32_to_cpu(((__le32 *)pbl)[1]))) << 32); | |
937 | if (!nespbl->page) { | |
938 | nes_debug(NES_DBG_QP, "QP nespbl->page is NULL \n"); | |
939 | kfree(nespbl); | |
940 | return -ENOMEM; | |
941 | } | |
942 | ||
943 | nesqp->hwqp.sq_vbase = kmap(nespbl->page); | |
944 | nesqp->page = nespbl->page; | |
945 | if (!nesqp->hwqp.sq_vbase) { | |
946 | nes_debug(NES_DBG_QP, "QP sq_vbase kmap failed\n"); | |
947 | kfree(nespbl); | |
948 | return -ENOMEM; | |
949 | } | |
950 | ||
951 | /* Now to get to sq.. we need to calculate how many */ | |
952 | /* PBL entries were used by the rq.. */ | |
953 | pbl += sq_pbl_entries; | |
954 | nesqp->hwqp.rq_pbase = (le32_to_cpu(((__le32 *)pbl)[0])) | ((u64)((le32_to_cpu(((__le32 *)pbl)[1]))) << 32); | |
955 | /* nesqp->hwqp.rq_vbase = bus_to_virt(*pbl); */ | |
956 | /*nesqp->hwqp.rq_vbase = phys_to_virt(*pbl); */ | |
957 | ||
71e0957c RD |
958 | nes_debug(NES_DBG_QP, "QP sq_vbase= %p sq_pbase=%lx rq_vbase=%p rq_pbase=%lx\n", |
959 | nesqp->hwqp.sq_vbase, (unsigned long) nesqp->hwqp.sq_pbase, | |
960 | nesqp->hwqp.rq_vbase, (unsigned long) nesqp->hwqp.rq_pbase); | |
3c2d774c GS |
961 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); |
962 | if (!nesadapter->free_256pbl) { | |
963 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | |
964 | nespbl->pbl_pbase); | |
965 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
966 | kunmap(nesqp->page); | |
967 | kfree(nespbl); | |
968 | return -ENOMEM; | |
969 | } | |
970 | nesadapter->free_256pbl--; | |
971 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
972 | ||
973 | nesqp->pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 256, &nesqp->pbl_pbase); | |
974 | pblbuffer = nesqp->pbl_vbase; | |
975 | if (!nesqp->pbl_vbase) { | |
976 | /* memory allocated during nes_reg_user_mr() */ | |
977 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | |
978 | nespbl->pbl_pbase); | |
979 | kfree(nespbl); | |
980 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
981 | nesadapter->free_256pbl++; | |
982 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
983 | kunmap(nesqp->page); | |
984 | return -ENOMEM; | |
985 | } | |
986 | memset(nesqp->pbl_vbase, 0, 256); | |
987 | /* fill in the page address in the pbl buffer.. */ | |
988 | tpbl = pblbuffer + 16; | |
989 | pbl = (__le64 *)nespbl->pbl_vbase; | |
990 | while (sq_pbl_entries--) | |
991 | *tpbl++ = *pbl++; | |
992 | tpbl = pblbuffer; | |
993 | while (rq_pbl_entries--) | |
994 | *tpbl++ = *pbl++; | |
995 | ||
996 | /* done with memory allocated during nes_reg_user_mr() */ | |
997 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | |
998 | nespbl->pbl_pbase); | |
999 | kfree(nespbl); | |
1000 | ||
1001 | nesqp->qp_mem_size = | |
1002 | max((u32)sizeof(struct nes_qp_context), ((u32)256)) + 256; /* this is Q2 */ | |
1003 | /* Round up to a multiple of a page */ | |
1004 | nesqp->qp_mem_size += PAGE_SIZE - 1; | |
1005 | nesqp->qp_mem_size &= ~(PAGE_SIZE - 1); | |
1006 | ||
1007 | mem = pci_alloc_consistent(nesdev->pcidev, nesqp->qp_mem_size, | |
1008 | &nesqp->hwqp.q2_pbase); | |
1009 | ||
1010 | if (!mem) { | |
1011 | pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase); | |
1012 | nesqp->pbl_vbase = NULL; | |
1013 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
1014 | nesadapter->free_256pbl++; | |
1015 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
1016 | kunmap(nesqp->page); | |
1017 | return -ENOMEM; | |
1018 | } | |
d2fa9b26 | 1019 | nesqp->sq_kmapped = 1; |
3c2d774c GS |
1020 | nesqp->hwqp.q2_vbase = mem; |
1021 | mem += 256; | |
1022 | memset(nesqp->hwqp.q2_vbase, 0, 256); | |
1023 | nesqp->nesqp_context = mem; | |
1024 | memset(nesqp->nesqp_context, 0, sizeof(*nesqp->nesqp_context)); | |
1025 | nesqp->nesqp_context_pbase = nesqp->hwqp.q2_pbase + 256; | |
1026 | ||
1027 | return 0; | |
1028 | } | |
1029 | ||
1030 | ||
1031 | /** | |
1032 | * nes_setup_mmap_qp | |
1033 | */ | |
1034 | static int nes_setup_mmap_qp(struct nes_qp *nesqp, struct nes_vnic *nesvnic, | |
1035 | int sq_size, int rq_size) | |
1036 | { | |
1037 | void *mem; | |
1038 | struct nes_device *nesdev = nesvnic->nesdev; | |
1039 | ||
1040 | nesqp->qp_mem_size = (sizeof(struct nes_hw_qp_wqe) * sq_size) + | |
1041 | (sizeof(struct nes_hw_qp_wqe) * rq_size) + | |
1042 | max((u32)sizeof(struct nes_qp_context), ((u32)256)) + | |
1043 | 256; /* this is Q2 */ | |
1044 | /* Round up to a multiple of a page */ | |
1045 | nesqp->qp_mem_size += PAGE_SIZE - 1; | |
1046 | nesqp->qp_mem_size &= ~(PAGE_SIZE - 1); | |
1047 | ||
1048 | mem = pci_alloc_consistent(nesdev->pcidev, nesqp->qp_mem_size, | |
1049 | &nesqp->hwqp.sq_pbase); | |
1050 | if (!mem) | |
1051 | return -ENOMEM; | |
1052 | nes_debug(NES_DBG_QP, "PCI consistent memory for " | |
1053 | "host descriptor rings located @ %p (pa = 0x%08lX.) size = %u.\n", | |
1054 | mem, (unsigned long)nesqp->hwqp.sq_pbase, nesqp->qp_mem_size); | |
1055 | ||
1056 | memset(mem, 0, nesqp->qp_mem_size); | |
1057 | ||
1058 | nesqp->hwqp.sq_vbase = mem; | |
1059 | mem += sizeof(struct nes_hw_qp_wqe) * sq_size; | |
1060 | ||
1061 | nesqp->hwqp.rq_vbase = mem; | |
1062 | nesqp->hwqp.rq_pbase = nesqp->hwqp.sq_pbase + | |
1063 | sizeof(struct nes_hw_qp_wqe) * sq_size; | |
1064 | mem += sizeof(struct nes_hw_qp_wqe) * rq_size; | |
1065 | ||
1066 | nesqp->hwqp.q2_vbase = mem; | |
1067 | nesqp->hwqp.q2_pbase = nesqp->hwqp.rq_pbase + | |
1068 | sizeof(struct nes_hw_qp_wqe) * rq_size; | |
1069 | mem += 256; | |
1070 | memset(nesqp->hwqp.q2_vbase, 0, 256); | |
1071 | ||
1072 | nesqp->nesqp_context = mem; | |
1073 | nesqp->nesqp_context_pbase = nesqp->hwqp.q2_pbase + 256; | |
1074 | memset(nesqp->nesqp_context, 0, sizeof(*nesqp->nesqp_context)); | |
1075 | return 0; | |
1076 | } | |
1077 | ||
1078 | ||
1079 | /** | |
1080 | * nes_free_qp_mem() is to free up the qp's pci_alloc_consistent() memory. | |
1081 | */ | |
1082 | static inline void nes_free_qp_mem(struct nes_device *nesdev, | |
1083 | struct nes_qp *nesqp, int virt_wqs) | |
1084 | { | |
1085 | unsigned long flags; | |
1086 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
1087 | if (!virt_wqs) { | |
1088 | pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, | |
1089 | nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase); | |
1090 | }else { | |
1091 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
1092 | nesadapter->free_256pbl++; | |
1093 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
1094 | pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase); | |
1095 | pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase ); | |
1096 | nesqp->pbl_vbase = NULL; | |
d2fa9b26 FL |
1097 | if (nesqp->sq_kmapped) { |
1098 | nesqp->sq_kmapped = 0; | |
1099 | kunmap(nesqp->page); | |
1100 | } | |
3c2d774c GS |
1101 | } |
1102 | } | |
1103 | ||
1104 | ||
1105 | /** | |
1106 | * nes_create_qp | |
1107 | */ | |
1108 | static struct ib_qp *nes_create_qp(struct ib_pd *ibpd, | |
1109 | struct ib_qp_init_attr *init_attr, struct ib_udata *udata) | |
1110 | { | |
1111 | u64 u64temp= 0; | |
1112 | u64 u64nesqp = 0; | |
1113 | struct nes_pd *nespd = to_nespd(ibpd); | |
1114 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | |
1115 | struct nes_device *nesdev = nesvnic->nesdev; | |
1116 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
1117 | struct nes_qp *nesqp; | |
1118 | struct nes_cq *nescq; | |
1119 | struct nes_ucontext *nes_ucontext; | |
1120 | struct nes_hw_cqp_wqe *cqp_wqe; | |
1121 | struct nes_cqp_request *cqp_request; | |
1122 | struct nes_create_qp_req req; | |
1123 | struct nes_create_qp_resp uresp; | |
1124 | struct nes_pbl *nespbl = NULL; | |
1125 | u32 qp_num = 0; | |
1126 | u32 opcode = 0; | |
1127 | /* u32 counter = 0; */ | |
1128 | void *mem; | |
1129 | unsigned long flags; | |
1130 | int ret; | |
1131 | int err; | |
1132 | int virt_wqs = 0; | |
1133 | int sq_size; | |
1134 | int rq_size; | |
1135 | u8 sq_encoded_size; | |
1136 | u8 rq_encoded_size; | |
1137 | /* int counter; */ | |
1138 | ||
b846f25a EC |
1139 | if (init_attr->create_flags) |
1140 | return ERR_PTR(-EINVAL); | |
1141 | ||
3c2d774c GS |
1142 | atomic_inc(&qps_created); |
1143 | switch (init_attr->qp_type) { | |
1144 | case IB_QPT_RC: | |
1145 | if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) { | |
1146 | init_attr->cap.max_inline_data = 0; | |
1147 | } else { | |
1148 | init_attr->cap.max_inline_data = 64; | |
1149 | } | |
1150 | sq_size = init_attr->cap.max_send_wr; | |
1151 | rq_size = init_attr->cap.max_recv_wr; | |
1152 | ||
7495ab68 | 1153 | /* check if the encoded sizes are OK or not... */ |
3c2d774c GS |
1154 | sq_encoded_size = nes_get_encoded_size(&sq_size); |
1155 | rq_encoded_size = nes_get_encoded_size(&rq_size); | |
1156 | ||
1157 | if ((!sq_encoded_size) || (!rq_encoded_size)) { | |
1158 | nes_debug(NES_DBG_QP, "ERROR bad rq (%u) or sq (%u) size\n", | |
1159 | rq_size, sq_size); | |
1160 | return ERR_PTR(-EINVAL); | |
1161 | } | |
1162 | ||
1163 | init_attr->cap.max_send_wr = sq_size -2; | |
1164 | init_attr->cap.max_recv_wr = rq_size -1; | |
1165 | nes_debug(NES_DBG_QP, "RQ size=%u, SQ Size=%u\n", rq_size, sq_size); | |
1166 | ||
1167 | ret = nes_alloc_resource(nesadapter, nesadapter->allocated_qps, | |
1168 | nesadapter->max_qp, &qp_num, &nesadapter->next_qp); | |
1169 | if (ret) { | |
1170 | return ERR_PTR(ret); | |
1171 | } | |
1172 | ||
1173 | /* Need 512 (actually now 1024) byte alignment on this structure */ | |
1174 | mem = kzalloc(sizeof(*nesqp)+NES_SW_CONTEXT_ALIGN-1, GFP_KERNEL); | |
1175 | if (!mem) { | |
1176 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1177 | nes_debug(NES_DBG_QP, "Unable to allocate QP\n"); | |
1178 | return ERR_PTR(-ENOMEM); | |
1179 | } | |
1180 | u64nesqp = (unsigned long)mem; | |
1181 | u64nesqp += ((u64)NES_SW_CONTEXT_ALIGN) - 1; | |
1182 | u64temp = ((u64)NES_SW_CONTEXT_ALIGN) - 1; | |
1183 | u64nesqp &= ~u64temp; | |
1184 | nesqp = (struct nes_qp *)(unsigned long)u64nesqp; | |
1185 | /* nes_debug(NES_DBG_QP, "nesqp=%p, allocated buffer=%p. Rounded to closest %u\n", | |
1186 | nesqp, mem, NES_SW_CONTEXT_ALIGN); */ | |
1187 | nesqp->allocated_buffer = mem; | |
1188 | ||
1189 | if (udata) { | |
1190 | if (ib_copy_from_udata(&req, udata, sizeof(struct nes_create_qp_req))) { | |
1191 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1192 | kfree(nesqp->allocated_buffer); | |
1193 | nes_debug(NES_DBG_QP, "ib_copy_from_udata() Failed \n"); | |
1194 | return NULL; | |
1195 | } | |
1196 | if (req.user_wqe_buffers) { | |
1197 | virt_wqs = 1; | |
1198 | } | |
1199 | if ((ibpd->uobject) && (ibpd->uobject->context)) { | |
1200 | nesqp->user_mode = 1; | |
1201 | nes_ucontext = to_nesucontext(ibpd->uobject->context); | |
1202 | if (virt_wqs) { | |
1203 | err = 1; | |
1204 | list_for_each_entry(nespbl, &nes_ucontext->qp_reg_mem_list, list) { | |
1205 | if (nespbl->user_base == (unsigned long )req.user_wqe_buffers) { | |
1206 | list_del(&nespbl->list); | |
1207 | err = 0; | |
1208 | nes_debug(NES_DBG_QP, "Found PBL for virtual QP. nespbl=%p. user_base=0x%lx\n", | |
1209 | nespbl, nespbl->user_base); | |
1210 | break; | |
1211 | } | |
1212 | } | |
1213 | if (err) { | |
1214 | nes_debug(NES_DBG_QP, "Didn't Find PBL for virtual QP. address = %llx.\n", | |
1215 | (long long unsigned int)req.user_wqe_buffers); | |
1216 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1217 | kfree(nesqp->allocated_buffer); | |
9300c0c0 | 1218 | return ERR_PTR(-EFAULT); |
3c2d774c GS |
1219 | } |
1220 | } | |
1221 | ||
1222 | nes_ucontext = to_nesucontext(ibpd->uobject->context); | |
1223 | nesqp->mmap_sq_db_index = | |
1224 | find_next_zero_bit(nes_ucontext->allocated_wqs, | |
1225 | NES_MAX_USER_WQ_REGIONS, nes_ucontext->first_free_wq); | |
1226 | /* nes_debug(NES_DBG_QP, "find_first_zero_biton wqs returned %u\n", | |
1227 | nespd->mmap_db_index); */ | |
51af33e8 | 1228 | if (nesqp->mmap_sq_db_index >= NES_MAX_USER_WQ_REGIONS) { |
3c2d774c GS |
1229 | nes_debug(NES_DBG_QP, |
1230 | "db index > max user regions, failing create QP\n"); | |
1231 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1232 | if (virt_wqs) { | |
1233 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | |
1234 | nespbl->pbl_pbase); | |
1235 | kfree(nespbl); | |
1236 | } | |
1237 | kfree(nesqp->allocated_buffer); | |
1238 | return ERR_PTR(-ENOMEM); | |
1239 | } | |
1240 | set_bit(nesqp->mmap_sq_db_index, nes_ucontext->allocated_wqs); | |
1241 | nes_ucontext->mmap_nesqp[nesqp->mmap_sq_db_index] = nesqp; | |
1242 | nes_ucontext->first_free_wq = nesqp->mmap_sq_db_index + 1; | |
1243 | } else { | |
1244 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1245 | kfree(nesqp->allocated_buffer); | |
1246 | return ERR_PTR(-EFAULT); | |
1247 | } | |
1248 | } | |
1249 | err = (!virt_wqs) ? nes_setup_mmap_qp(nesqp, nesvnic, sq_size, rq_size) : | |
1250 | nes_setup_virt_qp(nesqp, nespbl, nesvnic, sq_size, rq_size); | |
1251 | if (err) { | |
1252 | nes_debug(NES_DBG_QP, | |
1253 | "error geting qp mem code = %d\n", err); | |
1254 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1255 | kfree(nesqp->allocated_buffer); | |
1256 | return ERR_PTR(-ENOMEM); | |
1257 | } | |
1258 | ||
1259 | nesqp->hwqp.sq_size = sq_size; | |
1260 | nesqp->hwqp.sq_encoded_size = sq_encoded_size; | |
1261 | nesqp->hwqp.sq_head = 1; | |
1262 | nesqp->hwqp.rq_size = rq_size; | |
1263 | nesqp->hwqp.rq_encoded_size = rq_encoded_size; | |
1264 | /* nes_debug(NES_DBG_QP, "nesqp->nesqp_context_pbase = %p\n", | |
1265 | (void *)nesqp->nesqp_context_pbase); | |
1266 | */ | |
1267 | nesqp->hwqp.qp_id = qp_num; | |
1268 | nesqp->ibqp.qp_num = nesqp->hwqp.qp_id; | |
1269 | nesqp->nespd = nespd; | |
1270 | ||
1271 | nescq = to_nescq(init_attr->send_cq); | |
1272 | nesqp->nesscq = nescq; | |
1273 | nescq = to_nescq(init_attr->recv_cq); | |
1274 | nesqp->nesrcq = nescq; | |
1275 | ||
1276 | nesqp->nesqp_context->misc |= cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << | |
1277 | NES_QPCONTEXT_MISC_PCI_FCN_SHIFT); | |
1278 | nesqp->nesqp_context->misc |= cpu_to_le32((u32)nesqp->hwqp.rq_encoded_size << | |
1279 | NES_QPCONTEXT_MISC_RQ_SIZE_SHIFT); | |
1280 | nesqp->nesqp_context->misc |= cpu_to_le32((u32)nesqp->hwqp.sq_encoded_size << | |
1281 | NES_QPCONTEXT_MISC_SQ_SIZE_SHIFT); | |
c12e56ef | 1282 | if (!udata) { |
3c2d774c GS |
1283 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_PRIV_EN); |
1284 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_FAST_REGISTER_EN); | |
c12e56ef | 1285 | } |
3c2d774c GS |
1286 | nesqp->nesqp_context->cqs = cpu_to_le32(nesqp->nesscq->hw_cq.cq_number + |
1287 | ((u32)nesqp->nesrcq->hw_cq.cq_number << 16)); | |
1288 | u64temp = (u64)nesqp->hwqp.sq_pbase; | |
1289 | nesqp->nesqp_context->sq_addr_low = cpu_to_le32((u32)u64temp); | |
1290 | nesqp->nesqp_context->sq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | |
1291 | ||
1292 | ||
1293 | if (!virt_wqs) { | |
1294 | u64temp = (u64)nesqp->hwqp.sq_pbase; | |
1295 | nesqp->nesqp_context->sq_addr_low = cpu_to_le32((u32)u64temp); | |
1296 | nesqp->nesqp_context->sq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | |
1297 | u64temp = (u64)nesqp->hwqp.rq_pbase; | |
1298 | nesqp->nesqp_context->rq_addr_low = cpu_to_le32((u32)u64temp); | |
1299 | nesqp->nesqp_context->rq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | |
1300 | } else { | |
1301 | u64temp = (u64)nesqp->pbl_pbase; | |
1302 | nesqp->nesqp_context->rq_addr_low = cpu_to_le32((u32)u64temp); | |
1303 | nesqp->nesqp_context->rq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | |
1304 | } | |
1305 | ||
1306 | /* nes_debug(NES_DBG_QP, "next_qp_nic_index=%u, using nic_index=%d\n", | |
1307 | nesvnic->next_qp_nic_index, | |
1308 | nesvnic->qp_nic_index[nesvnic->next_qp_nic_index]); */ | |
1309 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | |
1310 | nesqp->nesqp_context->misc2 |= cpu_to_le32( | |
1311 | (u32)nesvnic->qp_nic_index[nesvnic->next_qp_nic_index] << | |
1312 | NES_QPCONTEXT_MISC2_NIC_INDEX_SHIFT); | |
1313 | nesvnic->next_qp_nic_index++; | |
1314 | if ((nesvnic->next_qp_nic_index > 3) || | |
1315 | (nesvnic->qp_nic_index[nesvnic->next_qp_nic_index] == 0xf)) { | |
1316 | nesvnic->next_qp_nic_index = 0; | |
1317 | } | |
1318 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | |
1319 | ||
1320 | nesqp->nesqp_context->pd_index_wscale |= cpu_to_le32((u32)nesqp->nespd->pd_id << 16); | |
1321 | u64temp = (u64)nesqp->hwqp.q2_pbase; | |
1322 | nesqp->nesqp_context->q2_addr_low = cpu_to_le32((u32)u64temp); | |
1323 | nesqp->nesqp_context->q2_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | |
1324 | nesqp->nesqp_context->aeq_token_low = cpu_to_le32((u32)((unsigned long)(nesqp))); | |
1325 | nesqp->nesqp_context->aeq_token_high = cpu_to_le32((u32)(upper_32_bits((unsigned long)(nesqp)))); | |
1326 | nesqp->nesqp_context->ird_ord_sizes = cpu_to_le32(NES_QPCONTEXT_ORDIRD_ALSMM | | |
883c6992 | 1327 | NES_QPCONTEXT_ORDIRD_AAH | |
3c2d774c GS |
1328 | ((((u32)nesadapter->max_irrq_wr) << |
1329 | NES_QPCONTEXT_ORDIRD_IRDSIZE_SHIFT) & NES_QPCONTEXT_ORDIRD_IRDSIZE_MASK)); | |
1330 | if (disable_mpa_crc) { | |
1331 | nes_debug(NES_DBG_QP, "Disabling MPA crc checking due to module option.\n"); | |
1332 | nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32(NES_QPCONTEXT_ORDIRD_RNMC); | |
1333 | } | |
1334 | ||
1335 | ||
1336 | /* Create the QP */ | |
1337 | cqp_request = nes_get_cqp_request(nesdev); | |
1338 | if (cqp_request == NULL) { | |
1339 | nes_debug(NES_DBG_QP, "Failed to get a cqp_request\n"); | |
1340 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1341 | nes_free_qp_mem(nesdev, nesqp,virt_wqs); | |
1342 | kfree(nesqp->allocated_buffer); | |
1343 | return ERR_PTR(-ENOMEM); | |
1344 | } | |
1345 | cqp_request->waiting = 1; | |
1346 | cqp_wqe = &cqp_request->cqp_wqe; | |
1347 | ||
1348 | if (!virt_wqs) { | |
1349 | opcode = NES_CQP_CREATE_QP | NES_CQP_QP_TYPE_IWARP | | |
1350 | NES_CQP_QP_IWARP_STATE_IDLE; | |
1351 | } else { | |
1352 | opcode = NES_CQP_CREATE_QP | NES_CQP_QP_TYPE_IWARP | NES_CQP_QP_VIRT_WQS | | |
1353 | NES_CQP_QP_IWARP_STATE_IDLE; | |
1354 | } | |
1355 | opcode |= NES_CQP_QP_CQS_VALID; | |
1356 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
1357 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | |
1358 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id); | |
1359 | ||
1360 | u64temp = (u64)nesqp->nesqp_context_pbase; | |
1361 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp); | |
1362 | ||
1363 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 1364 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1365 | |
1366 | /* Wait for CQP */ | |
1367 | nes_debug(NES_DBG_QP, "Waiting for create iWARP QP%u to complete.\n", | |
1368 | nesqp->hwqp.qp_id); | |
1369 | ret = wait_event_timeout(cqp_request->waitq, | |
1370 | (cqp_request->request_done != 0), NES_EVENT_TIMEOUT); | |
1371 | nes_debug(NES_DBG_QP, "Create iwarp QP%u completed, wait_event_timeout ret=%u," | |
1372 | " nesdev->cqp_head = %u, nesdev->cqp.sq_tail = %u," | |
1373 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
1374 | nesqp->hwqp.qp_id, ret, nesdev->cqp.sq_head, nesdev->cqp.sq_tail, | |
1375 | cqp_request->major_code, cqp_request->minor_code); | |
1376 | if ((!ret) || (cqp_request->major_code)) { | |
1ff66e8c | 1377 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1378 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); |
1379 | nes_free_qp_mem(nesdev, nesqp,virt_wqs); | |
1380 | kfree(nesqp->allocated_buffer); | |
1381 | if (!ret) { | |
1382 | return ERR_PTR(-ETIME); | |
1383 | } else { | |
1384 | return ERR_PTR(-EIO); | |
1385 | } | |
3c2d774c GS |
1386 | } |
1387 | ||
1ff66e8c RD |
1388 | nes_put_cqp_request(nesdev, cqp_request); |
1389 | ||
3c2d774c GS |
1390 | if (ibpd->uobject) { |
1391 | uresp.mmap_sq_db_index = nesqp->mmap_sq_db_index; | |
1392 | uresp.actual_sq_size = sq_size; | |
1393 | uresp.actual_rq_size = rq_size; | |
1394 | uresp.qp_id = nesqp->hwqp.qp_id; | |
1395 | uresp.nes_drv_opt = nes_drv_opt; | |
1396 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { | |
1397 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1398 | nes_free_qp_mem(nesdev, nesqp,virt_wqs); | |
1399 | kfree(nesqp->allocated_buffer); | |
1400 | return ERR_PTR(-EFAULT); | |
1401 | } | |
1402 | } | |
1403 | ||
1404 | nes_debug(NES_DBG_QP, "QP%u structure located @%p.Size = %u.\n", | |
1405 | nesqp->hwqp.qp_id, nesqp, (u32)sizeof(*nesqp)); | |
1406 | spin_lock_init(&nesqp->lock); | |
3c2d774c GS |
1407 | nes_add_ref(&nesqp->ibqp); |
1408 | break; | |
1409 | default: | |
1410 | nes_debug(NES_DBG_QP, "Invalid QP type: %d\n", init_attr->qp_type); | |
1411 | return ERR_PTR(-EINVAL); | |
3c2d774c GS |
1412 | } |
1413 | ||
d14152da CT |
1414 | nesqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR); |
1415 | ||
3c2d774c GS |
1416 | /* update the QP table */ |
1417 | nesdev->nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = nesqp; | |
1418 | nes_debug(NES_DBG_QP, "netdev refcnt=%u\n", | |
1419 | atomic_read(&nesvnic->netdev->refcnt)); | |
1420 | ||
1421 | return &nesqp->ibqp; | |
1422 | } | |
1423 | ||
1424 | ||
5ee21fe0 DW |
1425 | /** |
1426 | * nes_clean_cq | |
1427 | */ | |
1428 | static void nes_clean_cq(struct nes_qp *nesqp, struct nes_cq *nescq) | |
1429 | { | |
1430 | u32 cq_head; | |
1431 | u32 lo; | |
1432 | u32 hi; | |
1433 | u64 u64temp; | |
1434 | unsigned long flags = 0; | |
1435 | ||
1436 | spin_lock_irqsave(&nescq->lock, flags); | |
1437 | ||
1438 | cq_head = nescq->hw_cq.cq_head; | |
1439 | while (le32_to_cpu(nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_VALID) { | |
1440 | rmb(); | |
1441 | lo = le32_to_cpu(nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]); | |
1442 | hi = le32_to_cpu(nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX]); | |
1443 | u64temp = (((u64)hi) << 32) | ((u64)lo); | |
1444 | u64temp &= ~(NES_SW_CONTEXT_ALIGN-1); | |
1445 | if (u64temp == (u64)(unsigned long)nesqp) { | |
1446 | /* Zero the context value so cqe will be ignored */ | |
1447 | nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX] = 0; | |
1448 | nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX] = 0; | |
1449 | } | |
1450 | ||
1451 | if (++cq_head >= nescq->hw_cq.cq_size) | |
1452 | cq_head = 0; | |
1453 | } | |
1454 | ||
1455 | spin_unlock_irqrestore(&nescq->lock, flags); | |
1456 | } | |
1457 | ||
1458 | ||
3c2d774c GS |
1459 | /** |
1460 | * nes_destroy_qp | |
1461 | */ | |
1462 | static int nes_destroy_qp(struct ib_qp *ibqp) | |
1463 | { | |
1464 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
3c2d774c GS |
1465 | struct nes_ucontext *nes_ucontext; |
1466 | struct ib_qp_attr attr; | |
1467 | struct iw_cm_id *cm_id; | |
1468 | struct iw_cm_event cm_event; | |
1469 | int ret; | |
1470 | ||
1471 | atomic_inc(&sw_qps_destroyed); | |
1472 | nesqp->destroyed = 1; | |
1473 | ||
1474 | /* Blow away the connection if it exists. */ | |
1475 | if (nesqp->ibqp_state >= IB_QPS_INIT && nesqp->ibqp_state <= IB_QPS_RTS) { | |
1476 | /* if (nesqp->ibqp_state == IB_QPS_RTS) { */ | |
1477 | attr.qp_state = IB_QPS_ERR; | |
1478 | nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL); | |
1479 | } | |
1480 | ||
1481 | if (((nesqp->ibqp_state == IB_QPS_INIT) || | |
1482 | (nesqp->ibqp_state == IB_QPS_RTR)) && (nesqp->cm_id)) { | |
1483 | cm_id = nesqp->cm_id; | |
1484 | cm_event.event = IW_CM_EVENT_CONNECT_REPLY; | |
1485 | cm_event.status = IW_CM_EVENT_STATUS_TIMEOUT; | |
1486 | cm_event.local_addr = cm_id->local_addr; | |
1487 | cm_event.remote_addr = cm_id->remote_addr; | |
1488 | cm_event.private_data = NULL; | |
1489 | cm_event.private_data_len = 0; | |
1490 | ||
1491 | nes_debug(NES_DBG_QP, "Generating a CM Timeout Event for " | |
1492 | "QP%u. cm_id = %p, refcount = %u. \n", | |
1493 | nesqp->hwqp.qp_id, cm_id, atomic_read(&nesqp->refcount)); | |
1494 | ||
1495 | cm_id->rem_ref(cm_id); | |
1496 | ret = cm_id->event_handler(cm_id, &cm_event); | |
1497 | if (ret) | |
1498 | nes_debug(NES_DBG_QP, "OFA CM event_handler returned, ret=%d\n", ret); | |
1499 | } | |
1500 | ||
3c2d774c GS |
1501 | if (nesqp->user_mode) { |
1502 | if ((ibqp->uobject)&&(ibqp->uobject->context)) { | |
1503 | nes_ucontext = to_nesucontext(ibqp->uobject->context); | |
1504 | clear_bit(nesqp->mmap_sq_db_index, nes_ucontext->allocated_wqs); | |
1505 | nes_ucontext->mmap_nesqp[nesqp->mmap_sq_db_index] = NULL; | |
1506 | if (nes_ucontext->first_free_wq > nesqp->mmap_sq_db_index) { | |
1507 | nes_ucontext->first_free_wq = nesqp->mmap_sq_db_index; | |
1508 | } | |
1509 | } | |
d2fa9b26 FL |
1510 | if (nesqp->pbl_pbase && nesqp->sq_kmapped) { |
1511 | nesqp->sq_kmapped = 0; | |
3c2d774c | 1512 | kunmap(nesqp->page); |
d2fa9b26 | 1513 | } |
5ee21fe0 DW |
1514 | } else { |
1515 | /* Clean any pending completions from the cq(s) */ | |
1516 | if (nesqp->nesscq) | |
1517 | nes_clean_cq(nesqp, nesqp->nesscq); | |
1518 | ||
1519 | if ((nesqp->nesrcq) && (nesqp->nesrcq != nesqp->nesscq)) | |
1520 | nes_clean_cq(nesqp, nesqp->nesrcq); | |
3c2d774c GS |
1521 | } |
1522 | ||
1523 | nes_rem_ref(&nesqp->ibqp); | |
1524 | return 0; | |
1525 | } | |
1526 | ||
1527 | ||
1528 | /** | |
1529 | * nes_create_cq | |
1530 | */ | |
1531 | static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, | |
1532 | int comp_vector, | |
1533 | struct ib_ucontext *context, struct ib_udata *udata) | |
1534 | { | |
1535 | u64 u64temp; | |
1536 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | |
1537 | struct nes_device *nesdev = nesvnic->nesdev; | |
1538 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
1539 | struct nes_cq *nescq; | |
1540 | struct nes_ucontext *nes_ucontext = NULL; | |
1541 | struct nes_cqp_request *cqp_request; | |
1542 | void *mem = NULL; | |
1543 | struct nes_hw_cqp_wqe *cqp_wqe; | |
1544 | struct nes_pbl *nespbl = NULL; | |
1545 | struct nes_create_cq_req req; | |
1546 | struct nes_create_cq_resp resp; | |
1547 | u32 cq_num = 0; | |
1548 | u32 opcode = 0; | |
1549 | u32 pbl_entries = 1; | |
1550 | int err; | |
1551 | unsigned long flags; | |
1552 | int ret; | |
1553 | ||
5924aea6 CT |
1554 | if (entries > nesadapter->max_cqe) |
1555 | return ERR_PTR(-EINVAL); | |
1556 | ||
3c2d774c GS |
1557 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_cqs, |
1558 | nesadapter->max_cq, &cq_num, &nesadapter->next_cq); | |
1559 | if (err) { | |
1560 | return ERR_PTR(err); | |
1561 | } | |
1562 | ||
1563 | nescq = kzalloc(sizeof(struct nes_cq), GFP_KERNEL); | |
1564 | if (!nescq) { | |
1565 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | |
1566 | nes_debug(NES_DBG_CQ, "Unable to allocate nes_cq struct\n"); | |
1567 | return ERR_PTR(-ENOMEM); | |
1568 | } | |
1569 | ||
1570 | nescq->hw_cq.cq_size = max(entries + 1, 5); | |
1571 | nescq->hw_cq.cq_number = cq_num; | |
1572 | nescq->ibcq.cqe = nescq->hw_cq.cq_size - 1; | |
1573 | ||
1574 | ||
1575 | if (context) { | |
1576 | nes_ucontext = to_nesucontext(context); | |
1577 | if (ib_copy_from_udata(&req, udata, sizeof (struct nes_create_cq_req))) { | |
1578 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | |
1579 | kfree(nescq); | |
1580 | return ERR_PTR(-EFAULT); | |
1581 | } | |
1582 | nesvnic->mcrq_ucontext = nes_ucontext; | |
1583 | nes_ucontext->mcrqf = req.mcrqf; | |
1584 | if (nes_ucontext->mcrqf) { | |
1585 | if (nes_ucontext->mcrqf & 0x80000000) | |
2e369544 | 1586 | nescq->hw_cq.cq_number = nesvnic->nic.qp_id + 28 + 2 * ((nes_ucontext->mcrqf & 0xf) - 1); |
3c2d774c GS |
1587 | else if (nes_ucontext->mcrqf & 0x40000000) |
1588 | nescq->hw_cq.cq_number = nes_ucontext->mcrqf & 0xffff; | |
1589 | else | |
1590 | nescq->hw_cq.cq_number = nesvnic->mcrq_qp_id + nes_ucontext->mcrqf-1; | |
5d1af5c8 | 1591 | nescq->mcrqf = nes_ucontext->mcrqf; |
3c2d774c GS |
1592 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); |
1593 | } | |
1594 | nes_debug(NES_DBG_CQ, "CQ Virtual Address = %08lX, size = %u.\n", | |
1595 | (unsigned long)req.user_cq_buffer, entries); | |
9300c0c0 | 1596 | err = 1; |
3c2d774c GS |
1597 | list_for_each_entry(nespbl, &nes_ucontext->cq_reg_mem_list, list) { |
1598 | if (nespbl->user_base == (unsigned long )req.user_cq_buffer) { | |
1599 | list_del(&nespbl->list); | |
1600 | err = 0; | |
1601 | nes_debug(NES_DBG_CQ, "Found PBL for virtual CQ. nespbl=%p.\n", | |
1602 | nespbl); | |
1603 | break; | |
1604 | } | |
1605 | } | |
1606 | if (err) { | |
1607 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | |
1608 | kfree(nescq); | |
9300c0c0 | 1609 | return ERR_PTR(-EFAULT); |
3c2d774c GS |
1610 | } |
1611 | ||
1612 | pbl_entries = nespbl->pbl_size >> 3; | |
1613 | nescq->cq_mem_size = 0; | |
1614 | } else { | |
1615 | nescq->cq_mem_size = nescq->hw_cq.cq_size * sizeof(struct nes_hw_cqe); | |
1616 | nes_debug(NES_DBG_CQ, "Attempting to allocate pci memory (%u entries, %u bytes) for CQ%u.\n", | |
1617 | entries, nescq->cq_mem_size, nescq->hw_cq.cq_number); | |
1618 | ||
1619 | /* allocate the physical buffer space */ | |
1620 | mem = pci_alloc_consistent(nesdev->pcidev, nescq->cq_mem_size, | |
1621 | &nescq->hw_cq.cq_pbase); | |
1622 | if (!mem) { | |
1623 | printk(KERN_ERR PFX "Unable to allocate pci memory for cq\n"); | |
1624 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | |
1625 | kfree(nescq); | |
1626 | return ERR_PTR(-ENOMEM); | |
1627 | } | |
1628 | ||
1629 | memset(mem, 0, nescq->cq_mem_size); | |
1630 | nescq->hw_cq.cq_vbase = mem; | |
1631 | nescq->hw_cq.cq_head = 0; | |
1632 | nes_debug(NES_DBG_CQ, "CQ%u virtual address @ %p, phys = 0x%08X\n", | |
1633 | nescq->hw_cq.cq_number, nescq->hw_cq.cq_vbase, | |
1634 | (u32)nescq->hw_cq.cq_pbase); | |
1635 | } | |
1636 | ||
1637 | nescq->hw_cq.ce_handler = nes_iwarp_ce_handler; | |
1638 | spin_lock_init(&nescq->lock); | |
1639 | ||
1640 | /* send CreateCQ request to CQP */ | |
1641 | cqp_request = nes_get_cqp_request(nesdev); | |
1642 | if (cqp_request == NULL) { | |
1643 | nes_debug(NES_DBG_CQ, "Failed to get a cqp_request.\n"); | |
1644 | if (!context) | |
1645 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | |
1646 | nescq->hw_cq.cq_pbase); | |
5d1af5c8 MW |
1647 | else { |
1648 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, | |
1649 | nespbl->pbl_vbase, nespbl->pbl_pbase); | |
1650 | kfree(nespbl); | |
1651 | } | |
1652 | ||
3c2d774c GS |
1653 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); |
1654 | kfree(nescq); | |
1655 | return ERR_PTR(-ENOMEM); | |
1656 | } | |
1657 | cqp_request->waiting = 1; | |
1658 | cqp_wqe = &cqp_request->cqp_wqe; | |
1659 | ||
1660 | opcode = NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID | | |
1661 | NES_CQP_CQ_CHK_OVERFLOW | | |
1662 | NES_CQP_CQ_CEQE_MASK | ((u32)nescq->hw_cq.cq_size << 16); | |
1663 | ||
1664 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
1665 | ||
1666 | if (pbl_entries != 1) { | |
1667 | if (pbl_entries > 32) { | |
1668 | /* use 4k pbl */ | |
1669 | nes_debug(NES_DBG_CQ, "pbl_entries=%u, use a 4k PBL\n", pbl_entries); | |
1670 | if (nesadapter->free_4kpbl == 0) { | |
c5d321e5 FL |
1671 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); |
1672 | nes_free_cqp_request(nesdev, cqp_request); | |
3c2d774c GS |
1673 | if (!context) |
1674 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | |
1675 | nescq->hw_cq.cq_pbase); | |
5d1af5c8 MW |
1676 | else { |
1677 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, | |
1678 | nespbl->pbl_vbase, nespbl->pbl_pbase); | |
1679 | kfree(nespbl); | |
1680 | } | |
3c2d774c GS |
1681 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); |
1682 | kfree(nescq); | |
1683 | return ERR_PTR(-ENOMEM); | |
1684 | } else { | |
1685 | opcode |= (NES_CQP_CQ_VIRT | NES_CQP_CQ_4KB_CHUNK); | |
1686 | nescq->virtual_cq = 2; | |
1687 | nesadapter->free_4kpbl--; | |
1688 | } | |
1689 | } else { | |
1690 | /* use 256 byte pbl */ | |
1691 | nes_debug(NES_DBG_CQ, "pbl_entries=%u, use a 256 byte PBL\n", pbl_entries); | |
1692 | if (nesadapter->free_256pbl == 0) { | |
c5d321e5 FL |
1693 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); |
1694 | nes_free_cqp_request(nesdev, cqp_request); | |
3c2d774c GS |
1695 | if (!context) |
1696 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | |
1697 | nescq->hw_cq.cq_pbase); | |
5d1af5c8 MW |
1698 | else { |
1699 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, | |
1700 | nespbl->pbl_vbase, nespbl->pbl_pbase); | |
1701 | kfree(nespbl); | |
1702 | } | |
3c2d774c GS |
1703 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); |
1704 | kfree(nescq); | |
1705 | return ERR_PTR(-ENOMEM); | |
1706 | } else { | |
1707 | opcode |= NES_CQP_CQ_VIRT; | |
1708 | nescq->virtual_cq = 1; | |
1709 | nesadapter->free_256pbl--; | |
1710 | } | |
1711 | } | |
1712 | } | |
1713 | ||
1714 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
1715 | ||
1716 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
1717 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | |
1718 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, | |
1719 | (nescq->hw_cq.cq_number | ((u32)nesdev->ceq_index << 16))); | |
1720 | ||
1721 | if (context) { | |
1722 | if (pbl_entries != 1) | |
1723 | u64temp = (u64)nespbl->pbl_pbase; | |
1724 | else | |
1725 | u64temp = le64_to_cpu(nespbl->pbl_vbase[0]); | |
1726 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX, | |
1727 | nes_ucontext->mmap_db_index[0]); | |
1728 | } else { | |
1729 | u64temp = (u64)nescq->hw_cq.cq_pbase; | |
1730 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0; | |
1731 | } | |
1732 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp); | |
1733 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0; | |
1734 | u64temp = (u64)(unsigned long)&nescq->hw_cq; | |
1735 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] = | |
1736 | cpu_to_le32((u32)(u64temp >> 1)); | |
1737 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = | |
1738 | cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF); | |
1739 | ||
1740 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 1741 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1742 | |
1743 | /* Wait for CQP */ | |
1744 | nes_debug(NES_DBG_CQ, "Waiting for create iWARP CQ%u to complete.\n", | |
1745 | nescq->hw_cq.cq_number); | |
1746 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | |
1747 | NES_EVENT_TIMEOUT * 2); | |
1748 | nes_debug(NES_DBG_CQ, "Create iWARP CQ%u completed, wait_event_timeout ret = %d.\n", | |
1749 | nescq->hw_cq.cq_number, ret); | |
1750 | if ((!ret) || (cqp_request->major_code)) { | |
1ff66e8c | 1751 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1752 | if (!context) |
1753 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | |
1754 | nescq->hw_cq.cq_pbase); | |
5d1af5c8 MW |
1755 | else { |
1756 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, | |
1757 | nespbl->pbl_vbase, nespbl->pbl_pbase); | |
1758 | kfree(nespbl); | |
1759 | } | |
3c2d774c GS |
1760 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); |
1761 | kfree(nescq); | |
1762 | return ERR_PTR(-EIO); | |
3c2d774c | 1763 | } |
1ff66e8c | 1764 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1765 | |
1766 | if (context) { | |
1767 | /* free the nespbl */ | |
1768 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | |
1769 | nespbl->pbl_pbase); | |
1770 | kfree(nespbl); | |
1771 | resp.cq_id = nescq->hw_cq.cq_number; | |
1772 | resp.cq_size = nescq->hw_cq.cq_size; | |
1773 | resp.mmap_db_index = 0; | |
1774 | if (ib_copy_to_udata(udata, &resp, sizeof resp)) { | |
1775 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | |
1776 | kfree(nescq); | |
1777 | return ERR_PTR(-EFAULT); | |
1778 | } | |
1779 | } | |
1780 | ||
1781 | return &nescq->ibcq; | |
1782 | } | |
1783 | ||
1784 | ||
1785 | /** | |
1786 | * nes_destroy_cq | |
1787 | */ | |
1788 | static int nes_destroy_cq(struct ib_cq *ib_cq) | |
1789 | { | |
1790 | struct nes_cq *nescq; | |
1791 | struct nes_device *nesdev; | |
1792 | struct nes_vnic *nesvnic; | |
1793 | struct nes_adapter *nesadapter; | |
1794 | struct nes_hw_cqp_wqe *cqp_wqe; | |
1795 | struct nes_cqp_request *cqp_request; | |
1796 | unsigned long flags; | |
1797 | u32 opcode = 0; | |
1798 | int ret; | |
1799 | ||
1800 | if (ib_cq == NULL) | |
1801 | return 0; | |
1802 | ||
1803 | nescq = to_nescq(ib_cq); | |
1804 | nesvnic = to_nesvnic(ib_cq->device); | |
1805 | nesdev = nesvnic->nesdev; | |
1806 | nesadapter = nesdev->nesadapter; | |
1807 | ||
1808 | nes_debug(NES_DBG_CQ, "Destroy CQ%u\n", nescq->hw_cq.cq_number); | |
1809 | ||
1810 | /* Send DestroyCQ request to CQP */ | |
1811 | cqp_request = nes_get_cqp_request(nesdev); | |
1812 | if (cqp_request == NULL) { | |
1813 | nes_debug(NES_DBG_CQ, "Failed to get a cqp_request.\n"); | |
1814 | return -ENOMEM; | |
1815 | } | |
1816 | cqp_request->waiting = 1; | |
1817 | cqp_wqe = &cqp_request->cqp_wqe; | |
1818 | opcode = NES_CQP_DESTROY_CQ | (nescq->hw_cq.cq_size << 16); | |
1819 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
1820 | if (nescq->virtual_cq == 1) { | |
1821 | nesadapter->free_256pbl++; | |
1822 | if (nesadapter->free_256pbl > nesadapter->max_256pbl) { | |
1823 | printk(KERN_ERR PFX "%s: free 256B PBLs(%u) has exceeded the max(%u)\n", | |
33718363 | 1824 | __func__, nesadapter->free_256pbl, nesadapter->max_256pbl); |
3c2d774c GS |
1825 | } |
1826 | } else if (nescq->virtual_cq == 2) { | |
1827 | nesadapter->free_4kpbl++; | |
1828 | if (nesadapter->free_4kpbl > nesadapter->max_4kpbl) { | |
1829 | printk(KERN_ERR PFX "%s: free 4K PBLs(%u) has exceeded the max(%u)\n", | |
33718363 | 1830 | __func__, nesadapter->free_4kpbl, nesadapter->max_4kpbl); |
3c2d774c GS |
1831 | } |
1832 | opcode |= NES_CQP_CQ_4KB_CHUNK; | |
1833 | } | |
1834 | ||
1835 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
1836 | ||
1837 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
1838 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | |
1839 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, | |
1840 | (nescq->hw_cq.cq_number | ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 16))); | |
5d1af5c8 MW |
1841 | if (!nescq->mcrqf) |
1842 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, nescq->hw_cq.cq_number); | |
1843 | ||
3c2d774c | 1844 | atomic_set(&cqp_request->refcount, 2); |
8294f297 | 1845 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1846 | |
1847 | /* Wait for CQP */ | |
1848 | nes_debug(NES_DBG_CQ, "Waiting for destroy iWARP CQ%u to complete.\n", | |
1849 | nescq->hw_cq.cq_number); | |
1850 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | |
1851 | NES_EVENT_TIMEOUT); | |
1852 | nes_debug(NES_DBG_CQ, "Destroy iWARP CQ%u completed, wait_event_timeout ret = %u," | |
1853 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
1854 | nescq->hw_cq.cq_number, ret, cqp_request->major_code, | |
1855 | cqp_request->minor_code); | |
1ff66e8c RD |
1856 | if (!ret) { |
1857 | nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy timeout expired\n", | |
3c2d774c | 1858 | nescq->hw_cq.cq_number); |
1ff66e8c RD |
1859 | ret = -ETIME; |
1860 | } else if (cqp_request->major_code) { | |
1861 | nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy failed\n", | |
3c2d774c | 1862 | nescq->hw_cq.cq_number); |
1ff66e8c | 1863 | ret = -EIO; |
3c2d774c GS |
1864 | } else { |
1865 | ret = 0; | |
3c2d774c | 1866 | } |
1ff66e8c | 1867 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1868 | |
1869 | if (nescq->cq_mem_size) | |
1870 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, | |
31d1e340 | 1871 | nescq->hw_cq.cq_vbase, nescq->hw_cq.cq_pbase); |
3c2d774c GS |
1872 | kfree(nescq); |
1873 | ||
1874 | return ret; | |
1875 | } | |
1876 | ||
0145f341 DW |
1877 | /** |
1878 | * root_256 | |
1879 | */ | |
1880 | static u32 root_256(struct nes_device *nesdev, | |
1881 | struct nes_root_vpbl *root_vpbl, | |
1882 | struct nes_root_vpbl *new_root, | |
cc005fa2 | 1883 | u16 pbl_count_4k) |
0145f341 DW |
1884 | { |
1885 | u64 leaf_pbl; | |
1886 | int i, j, k; | |
1887 | ||
1888 | if (pbl_count_4k == 1) { | |
1889 | new_root->pbl_vbase = pci_alloc_consistent(nesdev->pcidev, | |
1890 | 512, &new_root->pbl_pbase); | |
1891 | ||
1892 | if (new_root->pbl_vbase == NULL) | |
1893 | return 0; | |
1894 | ||
1895 | leaf_pbl = (u64)root_vpbl->pbl_pbase; | |
1896 | for (i = 0; i < 16; i++) { | |
1897 | new_root->pbl_vbase[i].pa_low = | |
1898 | cpu_to_le32((u32)leaf_pbl); | |
1899 | new_root->pbl_vbase[i].pa_high = | |
1900 | cpu_to_le32((u32)((((u64)leaf_pbl) >> 32))); | |
1901 | leaf_pbl += 256; | |
1902 | } | |
1903 | } else { | |
1904 | for (i = 3; i >= 0; i--) { | |
1905 | j = i * 16; | |
1906 | root_vpbl->pbl_vbase[j] = root_vpbl->pbl_vbase[i]; | |
1907 | leaf_pbl = le32_to_cpu(root_vpbl->pbl_vbase[j].pa_low) + | |
1908 | (((u64)le32_to_cpu(root_vpbl->pbl_vbase[j].pa_high)) | |
1909 | << 32); | |
1910 | for (k = 1; k < 16; k++) { | |
1911 | leaf_pbl += 256; | |
1912 | root_vpbl->pbl_vbase[j + k].pa_low = | |
1913 | cpu_to_le32((u32)leaf_pbl); | |
1914 | root_vpbl->pbl_vbase[j + k].pa_high = | |
1915 | cpu_to_le32((u32)((((u64)leaf_pbl) >> 32))); | |
1916 | } | |
1917 | } | |
1918 | } | |
1919 | ||
1920 | return 1; | |
1921 | } | |
1922 | ||
3c2d774c GS |
1923 | |
1924 | /** | |
1925 | * nes_reg_mr | |
1926 | */ | |
1927 | static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd, | |
1928 | u32 stag, u64 region_length, struct nes_root_vpbl *root_vpbl, | |
0145f341 DW |
1929 | dma_addr_t single_buffer, u16 pbl_count_4k, |
1930 | u16 residual_page_count_4k, int acc, u64 *iova_start, | |
1931 | u16 *actual_pbl_cnt, u8 *used_4k_pbls) | |
3c2d774c GS |
1932 | { |
1933 | struct nes_hw_cqp_wqe *cqp_wqe; | |
1934 | struct nes_cqp_request *cqp_request; | |
1935 | unsigned long flags; | |
1936 | int ret; | |
1937 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
0145f341 | 1938 | uint pg_cnt = 0; |
1af9222b | 1939 | u16 pbl_count_256 = 0; |
0145f341 DW |
1940 | u16 pbl_count = 0; |
1941 | u8 use_256_pbls = 0; | |
1942 | u8 use_4k_pbls = 0; | |
1943 | u16 use_two_level = (pbl_count_4k > 1) ? 1 : 0; | |
1944 | struct nes_root_vpbl new_root = {0, 0, 0}; | |
3c2d774c GS |
1945 | u32 opcode = 0; |
1946 | u16 major_code; | |
1947 | ||
1948 | /* Register the region with the adapter */ | |
1949 | cqp_request = nes_get_cqp_request(nesdev); | |
1950 | if (cqp_request == NULL) { | |
1951 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | |
1952 | return -ENOMEM; | |
1953 | } | |
1954 | cqp_request->waiting = 1; | |
1955 | cqp_wqe = &cqp_request->cqp_wqe; | |
1956 | ||
0145f341 DW |
1957 | if (pbl_count_4k) { |
1958 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
1959 | ||
1960 | pg_cnt = ((pbl_count_4k - 1) * 512) + residual_page_count_4k; | |
1961 | pbl_count_256 = (pg_cnt + 31) / 32; | |
1962 | if (pg_cnt <= 32) { | |
1963 | if (pbl_count_256 <= nesadapter->free_256pbl) | |
1964 | use_256_pbls = 1; | |
1965 | else if (pbl_count_4k <= nesadapter->free_4kpbl) | |
1966 | use_4k_pbls = 1; | |
1967 | } else if (pg_cnt <= 2048) { | |
1968 | if (((pbl_count_4k + use_two_level) <= nesadapter->free_4kpbl) && | |
1969 | (nesadapter->free_4kpbl > (nesadapter->max_4kpbl >> 1))) { | |
1970 | use_4k_pbls = 1; | |
1971 | } else if ((pbl_count_256 + 1) <= nesadapter->free_256pbl) { | |
1972 | use_256_pbls = 1; | |
1973 | use_two_level = 1; | |
1974 | } else if ((pbl_count_4k + use_two_level) <= nesadapter->free_4kpbl) { | |
1975 | use_4k_pbls = 1; | |
3c2d774c GS |
1976 | } |
1977 | } else { | |
0145f341 DW |
1978 | if ((pbl_count_4k + 1) <= nesadapter->free_4kpbl) |
1979 | use_4k_pbls = 1; | |
3c2d774c | 1980 | } |
0145f341 DW |
1981 | |
1982 | if (use_256_pbls) { | |
1983 | pbl_count = pbl_count_256; | |
1984 | nesadapter->free_256pbl -= pbl_count + use_two_level; | |
1985 | } else if (use_4k_pbls) { | |
1986 | pbl_count = pbl_count_4k; | |
1987 | nesadapter->free_4kpbl -= pbl_count + use_two_level; | |
1988 | } else { | |
1989 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
1990 | nes_debug(NES_DBG_MR, "Out of Pbls\n"); | |
1991 | nes_free_cqp_request(nesdev, cqp_request); | |
1992 | return -ENOMEM; | |
1993 | } | |
1994 | ||
1995 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
3c2d774c GS |
1996 | } |
1997 | ||
0145f341 | 1998 | if (use_256_pbls && use_two_level) { |
cc005fa2 | 1999 | if (root_256(nesdev, root_vpbl, &new_root, pbl_count_4k) == 1) { |
0145f341 DW |
2000 | if (new_root.pbl_pbase != 0) |
2001 | root_vpbl = &new_root; | |
2002 | } else { | |
2003 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
2004 | nesadapter->free_256pbl += pbl_count_256 + use_two_level; | |
2005 | use_256_pbls = 0; | |
2006 | ||
2007 | if (pbl_count_4k == 1) | |
2008 | use_two_level = 0; | |
2009 | pbl_count = pbl_count_4k; | |
2010 | ||
2011 | if ((pbl_count_4k + use_two_level) <= nesadapter->free_4kpbl) { | |
2012 | nesadapter->free_4kpbl -= pbl_count + use_two_level; | |
2013 | use_4k_pbls = 1; | |
2014 | } | |
2015 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
2016 | ||
2017 | if (use_4k_pbls == 0) | |
2018 | return -ENOMEM; | |
2019 | } | |
2020 | } | |
3c2d774c GS |
2021 | |
2022 | opcode = NES_CQP_REGISTER_STAG | NES_CQP_STAG_RIGHTS_LOCAL_READ | | |
2023 | NES_CQP_STAG_VA_TO | NES_CQP_STAG_MR; | |
2024 | if (acc & IB_ACCESS_LOCAL_WRITE) | |
2025 | opcode |= NES_CQP_STAG_RIGHTS_LOCAL_WRITE; | |
2026 | if (acc & IB_ACCESS_REMOTE_WRITE) | |
2027 | opcode |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE | NES_CQP_STAG_REM_ACC_EN; | |
2028 | if (acc & IB_ACCESS_REMOTE_READ) | |
2029 | opcode |= NES_CQP_STAG_RIGHTS_REMOTE_READ | NES_CQP_STAG_REM_ACC_EN; | |
2030 | if (acc & IB_ACCESS_MW_BIND) | |
2031 | opcode |= NES_CQP_STAG_RIGHTS_WINDOW_BIND | NES_CQP_STAG_REM_ACC_EN; | |
2032 | ||
2033 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
2034 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | |
2035 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_VA_LOW_IDX, *iova_start); | |
2036 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_LOW_IDX, region_length); | |
2037 | ||
2038 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] = | |
2039 | cpu_to_le32((u32)(region_length >> 8) & 0xff000000); | |
2040 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] |= | |
2041 | cpu_to_le32(nespd->pd_id & 0x00007fff); | |
2042 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag); | |
2043 | ||
2044 | if (pbl_count == 0) { | |
2045 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, single_buffer); | |
2046 | } else { | |
2047 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, root_vpbl->pbl_pbase); | |
2048 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX, pbl_count); | |
0145f341 | 2049 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_LEN_IDX, (pg_cnt * 8)); |
3c2d774c | 2050 | |
0145f341 | 2051 | if (use_4k_pbls) |
3c2d774c GS |
2052 | cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(NES_CQP_STAG_PBL_BLK_SIZE); |
2053 | } | |
2054 | barrier(); | |
2055 | ||
2056 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 2057 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
2058 | |
2059 | /* Wait for CQP */ | |
2060 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | |
2061 | NES_EVENT_TIMEOUT); | |
2062 | nes_debug(NES_DBG_MR, "Register STag 0x%08X completed, wait_event_timeout ret = %u," | |
2063 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
2064 | stag, ret, cqp_request->major_code, cqp_request->minor_code); | |
2065 | major_code = cqp_request->major_code; | |
1ff66e8c RD |
2066 | nes_put_cqp_request(nesdev, cqp_request); |
2067 | ||
dae5d13a DW |
2068 | if ((!ret || major_code) && pbl_count != 0) { |
2069 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
0145f341 DW |
2070 | if (use_256_pbls) |
2071 | nesadapter->free_256pbl += pbl_count + use_two_level; | |
2072 | else if (use_4k_pbls) | |
2073 | nesadapter->free_4kpbl += pbl_count + use_two_level; | |
dae5d13a DW |
2074 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); |
2075 | } | |
0145f341 DW |
2076 | if (new_root.pbl_pbase) |
2077 | pci_free_consistent(nesdev->pcidev, 512, new_root.pbl_vbase, | |
2078 | new_root.pbl_pbase); | |
2079 | ||
3c2d774c GS |
2080 | if (!ret) |
2081 | return -ETIME; | |
2082 | else if (major_code) | |
2083 | return -EIO; | |
3c2d774c | 2084 | |
0145f341 DW |
2085 | *actual_pbl_cnt = pbl_count + use_two_level; |
2086 | *used_4k_pbls = use_4k_pbls; | |
3c2d774c GS |
2087 | return 0; |
2088 | } | |
2089 | ||
2090 | ||
2091 | /** | |
2092 | * nes_reg_phys_mr | |
2093 | */ | |
2094 | static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd, | |
2095 | struct ib_phys_buf *buffer_list, int num_phys_buf, int acc, | |
2096 | u64 * iova_start) | |
2097 | { | |
2098 | u64 region_length; | |
2099 | struct nes_pd *nespd = to_nespd(ib_pd); | |
2100 | struct nes_vnic *nesvnic = to_nesvnic(ib_pd->device); | |
2101 | struct nes_device *nesdev = nesvnic->nesdev; | |
2102 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
2103 | struct nes_mr *nesmr; | |
2104 | struct ib_mr *ibmr; | |
2105 | struct nes_vpbl vpbl; | |
2106 | struct nes_root_vpbl root_vpbl; | |
2107 | u32 stag; | |
2108 | u32 i; | |
3f32eb11 | 2109 | unsigned long mask; |
3c2d774c GS |
2110 | u32 stag_index = 0; |
2111 | u32 next_stag_index = 0; | |
2112 | u32 driver_key = 0; | |
2113 | u32 root_pbl_index = 0; | |
2114 | u32 cur_pbl_index = 0; | |
2115 | int err = 0, pbl_depth = 0; | |
2116 | int ret = 0; | |
2117 | u16 pbl_count = 0; | |
2118 | u8 single_page = 1; | |
2119 | u8 stag_key = 0; | |
2120 | ||
2121 | pbl_depth = 0; | |
2122 | region_length = 0; | |
2123 | vpbl.pbl_vbase = NULL; | |
2124 | root_vpbl.pbl_vbase = NULL; | |
2125 | root_vpbl.pbl_pbase = 0; | |
2126 | ||
2127 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); | |
2128 | stag_key = (u8)next_stag_index; | |
2129 | ||
2130 | driver_key = 0; | |
2131 | ||
2132 | next_stag_index >>= 8; | |
2133 | next_stag_index %= nesadapter->max_mr; | |
2134 | if (num_phys_buf > (1024*512)) { | |
2135 | return ERR_PTR(-E2BIG); | |
2136 | } | |
2137 | ||
3f32eb11 DW |
2138 | if ((buffer_list[0].addr ^ *iova_start) & ~PAGE_MASK) |
2139 | return ERR_PTR(-EINVAL); | |
2140 | ||
3c2d774c GS |
2141 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, nesadapter->max_mr, |
2142 | &stag_index, &next_stag_index); | |
2143 | if (err) { | |
2144 | return ERR_PTR(err); | |
2145 | } | |
2146 | ||
2147 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | |
2148 | if (!nesmr) { | |
2149 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2150 | return ERR_PTR(-ENOMEM); | |
2151 | } | |
2152 | ||
2153 | for (i = 0; i < num_phys_buf; i++) { | |
2154 | ||
2155 | if ((i & 0x01FF) == 0) { | |
2156 | if (root_pbl_index == 1) { | |
2157 | /* Allocate the root PBL */ | |
2158 | root_vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 8192, | |
2159 | &root_vpbl.pbl_pbase); | |
2160 | nes_debug(NES_DBG_MR, "Allocating root PBL, va = %p, pa = 0x%08X\n", | |
2161 | root_vpbl.pbl_vbase, (unsigned int)root_vpbl.pbl_pbase); | |
2162 | if (!root_vpbl.pbl_vbase) { | |
2163 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | |
2164 | vpbl.pbl_pbase); | |
2165 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2166 | kfree(nesmr); | |
2167 | return ERR_PTR(-ENOMEM); | |
2168 | } | |
2169 | root_vpbl.leaf_vpbl = kzalloc(sizeof(*root_vpbl.leaf_vpbl)*1024, GFP_KERNEL); | |
2170 | if (!root_vpbl.leaf_vpbl) { | |
2171 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | |
2172 | root_vpbl.pbl_pbase); | |
2173 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | |
2174 | vpbl.pbl_pbase); | |
2175 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2176 | kfree(nesmr); | |
2177 | return ERR_PTR(-ENOMEM); | |
2178 | } | |
2179 | root_vpbl.pbl_vbase[0].pa_low = cpu_to_le32((u32)vpbl.pbl_pbase); | |
2180 | root_vpbl.pbl_vbase[0].pa_high = | |
2181 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32))); | |
2182 | root_vpbl.leaf_vpbl[0] = vpbl; | |
2183 | } | |
2184 | /* Allocate a 4K buffer for the PBL */ | |
2185 | vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096, | |
2186 | &vpbl.pbl_pbase); | |
2187 | nes_debug(NES_DBG_MR, "Allocating leaf PBL, va = %p, pa = 0x%016lX\n", | |
2188 | vpbl.pbl_vbase, (unsigned long)vpbl.pbl_pbase); | |
2189 | if (!vpbl.pbl_vbase) { | |
2190 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2191 | ibmr = ERR_PTR(-ENOMEM); | |
2192 | kfree(nesmr); | |
2193 | goto reg_phys_err; | |
2194 | } | |
2195 | /* Fill in the root table */ | |
2196 | if (1 <= root_pbl_index) { | |
2197 | root_vpbl.pbl_vbase[root_pbl_index].pa_low = | |
2198 | cpu_to_le32((u32)vpbl.pbl_pbase); | |
2199 | root_vpbl.pbl_vbase[root_pbl_index].pa_high = | |
2200 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32))); | |
2201 | root_vpbl.leaf_vpbl[root_pbl_index] = vpbl; | |
2202 | } | |
2203 | root_pbl_index++; | |
2204 | cur_pbl_index = 0; | |
2205 | } | |
3c2d774c | 2206 | |
3f32eb11 DW |
2207 | mask = !buffer_list[i].size; |
2208 | if (i != 0) | |
2209 | mask |= buffer_list[i].addr; | |
2210 | if (i != num_phys_buf - 1) | |
2211 | mask |= buffer_list[i].addr + buffer_list[i].size; | |
2212 | ||
2213 | if (mask & ~PAGE_MASK) { | |
3c2d774c | 2214 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); |
3f32eb11 | 2215 | nes_debug(NES_DBG_MR, "Invalid buffer addr or size\n"); |
3c2d774c GS |
2216 | ibmr = ERR_PTR(-EINVAL); |
2217 | kfree(nesmr); | |
2218 | goto reg_phys_err; | |
2219 | } | |
2220 | ||
2221 | region_length += buffer_list[i].size; | |
2222 | if ((i != 0) && (single_page)) { | |
2223 | if ((buffer_list[i-1].addr+PAGE_SIZE) != buffer_list[i].addr) | |
2224 | single_page = 0; | |
2225 | } | |
3f32eb11 | 2226 | vpbl.pbl_vbase[cur_pbl_index].pa_low = cpu_to_le32((u32)buffer_list[i].addr & PAGE_MASK); |
3c2d774c GS |
2227 | vpbl.pbl_vbase[cur_pbl_index++].pa_high = |
2228 | cpu_to_le32((u32)((((u64)buffer_list[i].addr) >> 32))); | |
2229 | } | |
2230 | ||
2231 | stag = stag_index << 8; | |
2232 | stag |= driver_key; | |
2233 | stag += (u32)stag_key; | |
2234 | ||
2235 | nes_debug(NES_DBG_MR, "Registering STag 0x%08X, VA = 0x%016lX," | |
2236 | " length = 0x%016lX, index = 0x%08X\n", | |
2237 | stag, (unsigned long)*iova_start, (unsigned long)region_length, stag_index); | |
2238 | ||
3c2d774c GS |
2239 | /* Make the leaf PBL the root if only one PBL */ |
2240 | if (root_pbl_index == 1) { | |
2241 | root_vpbl.pbl_pbase = vpbl.pbl_pbase; | |
2242 | } | |
2243 | ||
2244 | if (single_page) { | |
2245 | pbl_count = 0; | |
2246 | } else { | |
2247 | pbl_count = root_pbl_index; | |
2248 | } | |
2249 | ret = nes_reg_mr(nesdev, nespd, stag, region_length, &root_vpbl, | |
0145f341 DW |
2250 | buffer_list[0].addr, pbl_count, (u16)cur_pbl_index, acc, iova_start, |
2251 | &nesmr->pbls_used, &nesmr->pbl_4k); | |
3c2d774c GS |
2252 | |
2253 | if (ret == 0) { | |
2254 | nesmr->ibmr.rkey = stag; | |
2255 | nesmr->ibmr.lkey = stag; | |
2256 | nesmr->mode = IWNES_MEMREG_TYPE_MEM; | |
2257 | ibmr = &nesmr->ibmr; | |
3c2d774c GS |
2258 | } else { |
2259 | kfree(nesmr); | |
2260 | ibmr = ERR_PTR(-ENOMEM); | |
2261 | } | |
2262 | ||
2263 | reg_phys_err: | |
2264 | /* free the resources */ | |
2265 | if (root_pbl_index == 1) { | |
2266 | /* single PBL case */ | |
2267 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, vpbl.pbl_pbase); | |
2268 | } else { | |
2269 | for (i=0; i<root_pbl_index; i++) { | |
2270 | pci_free_consistent(nesdev->pcidev, 4096, root_vpbl.leaf_vpbl[i].pbl_vbase, | |
2271 | root_vpbl.leaf_vpbl[i].pbl_pbase); | |
2272 | } | |
2273 | kfree(root_vpbl.leaf_vpbl); | |
2274 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | |
2275 | root_vpbl.pbl_pbase); | |
2276 | } | |
2277 | ||
2278 | return ibmr; | |
2279 | } | |
2280 | ||
2281 | ||
2282 | /** | |
2283 | * nes_get_dma_mr | |
2284 | */ | |
2285 | static struct ib_mr *nes_get_dma_mr(struct ib_pd *pd, int acc) | |
2286 | { | |
2287 | struct ib_phys_buf bl; | |
2288 | u64 kva = 0; | |
2289 | ||
2290 | nes_debug(NES_DBG_MR, "\n"); | |
2291 | ||
2292 | bl.size = (u64)0xffffffffffULL; | |
2293 | bl.addr = 0; | |
2294 | return nes_reg_phys_mr(pd, &bl, 1, acc, &kva); | |
2295 | } | |
2296 | ||
2297 | ||
2298 | /** | |
2299 | * nes_reg_user_mr | |
2300 | */ | |
2301 | static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, | |
2302 | u64 virt, int acc, struct ib_udata *udata) | |
2303 | { | |
2304 | u64 iova_start; | |
2305 | __le64 *pbl; | |
2306 | u64 region_length; | |
2307 | dma_addr_t last_dma_addr = 0; | |
2308 | dma_addr_t first_dma_addr = 0; | |
2309 | struct nes_pd *nespd = to_nespd(pd); | |
2310 | struct nes_vnic *nesvnic = to_nesvnic(pd->device); | |
2311 | struct nes_device *nesdev = nesvnic->nesdev; | |
2312 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
2313 | struct ib_mr *ibmr = ERR_PTR(-EINVAL); | |
2314 | struct ib_umem_chunk *chunk; | |
2315 | struct nes_ucontext *nes_ucontext; | |
2316 | struct nes_pbl *nespbl; | |
2317 | struct nes_mr *nesmr; | |
2318 | struct ib_umem *region; | |
2319 | struct nes_mem_reg_req req; | |
2320 | struct nes_vpbl vpbl; | |
2321 | struct nes_root_vpbl root_vpbl; | |
2322 | int nmap_index, page_index; | |
2323 | int page_count = 0; | |
2324 | int err, pbl_depth = 0; | |
2325 | int chunk_pages; | |
2326 | int ret; | |
2327 | u32 stag; | |
2328 | u32 stag_index = 0; | |
2329 | u32 next_stag_index; | |
2330 | u32 driver_key; | |
2331 | u32 root_pbl_index = 0; | |
2332 | u32 cur_pbl_index = 0; | |
2333 | u32 skip_pages; | |
2334 | u16 pbl_count; | |
2335 | u8 single_page = 1; | |
2336 | u8 stag_key; | |
2337 | ||
cb9fbc5c | 2338 | region = ib_umem_get(pd->uobject->context, start, length, acc, 0); |
3c2d774c GS |
2339 | if (IS_ERR(region)) { |
2340 | return (struct ib_mr *)region; | |
2341 | } | |
2342 | ||
2343 | nes_debug(NES_DBG_MR, "User base = 0x%lX, Virt base = 0x%lX, length = %u," | |
2344 | " offset = %u, page size = %u.\n", | |
2345 | (unsigned long int)start, (unsigned long int)virt, (u32)length, | |
2346 | region->offset, region->page_size); | |
2347 | ||
2348 | skip_pages = ((u32)region->offset) >> 12; | |
2349 | ||
2350 | if (ib_copy_from_udata(&req, udata, sizeof(req))) | |
2351 | return ERR_PTR(-EFAULT); | |
2352 | nes_debug(NES_DBG_MR, "Memory Registration type = %08X.\n", req.reg_type); | |
2353 | ||
2354 | switch (req.reg_type) { | |
2355 | case IWNES_MEMREG_TYPE_MEM: | |
2356 | pbl_depth = 0; | |
2357 | region_length = 0; | |
2358 | vpbl.pbl_vbase = NULL; | |
2359 | root_vpbl.pbl_vbase = NULL; | |
2360 | root_vpbl.pbl_pbase = 0; | |
2361 | ||
2362 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); | |
2363 | stag_key = (u8)next_stag_index; | |
2364 | ||
2365 | driver_key = next_stag_index & 0x70000000; | |
2366 | ||
2367 | next_stag_index >>= 8; | |
2368 | next_stag_index %= nesadapter->max_mr; | |
2369 | ||
2370 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, | |
2371 | nesadapter->max_mr, &stag_index, &next_stag_index); | |
2372 | if (err) { | |
2373 | ib_umem_release(region); | |
2374 | return ERR_PTR(err); | |
2375 | } | |
2376 | ||
2377 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | |
2378 | if (!nesmr) { | |
2379 | ib_umem_release(region); | |
2380 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2381 | return ERR_PTR(-ENOMEM); | |
2382 | } | |
2383 | nesmr->region = region; | |
2384 | ||
2385 | list_for_each_entry(chunk, ®ion->chunk_list, list) { | |
2386 | nes_debug(NES_DBG_MR, "Chunk: nents = %u, nmap = %u .\n", | |
2387 | chunk->nents, chunk->nmap); | |
2388 | for (nmap_index = 0; nmap_index < chunk->nmap; ++nmap_index) { | |
2389 | if (sg_dma_address(&chunk->page_list[nmap_index]) & ~PAGE_MASK) { | |
2390 | ib_umem_release(region); | |
2391 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2392 | nes_debug(NES_DBG_MR, "Unaligned Memory Buffer: 0x%x\n", | |
2393 | (unsigned int) sg_dma_address(&chunk->page_list[nmap_index])); | |
2394 | ibmr = ERR_PTR(-EINVAL); | |
2395 | kfree(nesmr); | |
2396 | goto reg_user_mr_err; | |
2397 | } | |
2398 | ||
2399 | if (!sg_dma_len(&chunk->page_list[nmap_index])) { | |
2400 | ib_umem_release(region); | |
2401 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | |
2402 | stag_index); | |
2403 | nes_debug(NES_DBG_MR, "Invalid Buffer Size\n"); | |
2404 | ibmr = ERR_PTR(-EINVAL); | |
2405 | kfree(nesmr); | |
2406 | goto reg_user_mr_err; | |
2407 | } | |
2408 | ||
2409 | region_length += sg_dma_len(&chunk->page_list[nmap_index]); | |
2410 | chunk_pages = sg_dma_len(&chunk->page_list[nmap_index]) >> 12; | |
2411 | region_length -= skip_pages << 12; | |
2412 | for (page_index=skip_pages; page_index < chunk_pages; page_index++) { | |
2413 | skip_pages = 0; | |
2414 | if ((page_count!=0)&&(page_count<<12)-(region->offset&(4096-1))>=region->length) | |
2415 | goto enough_pages; | |
2416 | if ((page_count&0x01FF) == 0) { | |
24797a34 | 2417 | if (page_count >= 1024 * 512) { |
3c2d774c | 2418 | ib_umem_release(region); |
3c2d774c GS |
2419 | nes_free_resource(nesadapter, |
2420 | nesadapter->allocated_mrs, stag_index); | |
2421 | kfree(nesmr); | |
2422 | ibmr = ERR_PTR(-E2BIG); | |
2423 | goto reg_user_mr_err; | |
2424 | } | |
2425 | if (root_pbl_index == 1) { | |
2426 | root_vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, | |
2427 | 8192, &root_vpbl.pbl_pbase); | |
2428 | nes_debug(NES_DBG_MR, "Allocating root PBL, va = %p, pa = 0x%08X\n", | |
2429 | root_vpbl.pbl_vbase, (unsigned int)root_vpbl.pbl_pbase); | |
2430 | if (!root_vpbl.pbl_vbase) { | |
2431 | ib_umem_release(region); | |
2432 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | |
2433 | vpbl.pbl_pbase); | |
2434 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | |
2435 | stag_index); | |
2436 | kfree(nesmr); | |
2437 | ibmr = ERR_PTR(-ENOMEM); | |
2438 | goto reg_user_mr_err; | |
2439 | } | |
2440 | root_vpbl.leaf_vpbl = kzalloc(sizeof(*root_vpbl.leaf_vpbl)*1024, | |
2441 | GFP_KERNEL); | |
2442 | if (!root_vpbl.leaf_vpbl) { | |
2443 | ib_umem_release(region); | |
2444 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | |
2445 | root_vpbl.pbl_pbase); | |
2446 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | |
2447 | vpbl.pbl_pbase); | |
2448 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | |
2449 | stag_index); | |
2450 | kfree(nesmr); | |
2451 | ibmr = ERR_PTR(-ENOMEM); | |
2452 | goto reg_user_mr_err; | |
2453 | } | |
2454 | root_vpbl.pbl_vbase[0].pa_low = | |
2455 | cpu_to_le32((u32)vpbl.pbl_pbase); | |
2456 | root_vpbl.pbl_vbase[0].pa_high = | |
2457 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32))); | |
2458 | root_vpbl.leaf_vpbl[0] = vpbl; | |
2459 | } | |
2460 | vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096, | |
2461 | &vpbl.pbl_pbase); | |
2462 | nes_debug(NES_DBG_MR, "Allocating leaf PBL, va = %p, pa = 0x%08X\n", | |
2463 | vpbl.pbl_vbase, (unsigned int)vpbl.pbl_pbase); | |
2464 | if (!vpbl.pbl_vbase) { | |
2465 | ib_umem_release(region); | |
2466 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2467 | ibmr = ERR_PTR(-ENOMEM); | |
2468 | kfree(nesmr); | |
2469 | goto reg_user_mr_err; | |
2470 | } | |
2471 | if (1 <= root_pbl_index) { | |
2472 | root_vpbl.pbl_vbase[root_pbl_index].pa_low = | |
2473 | cpu_to_le32((u32)vpbl.pbl_pbase); | |
2474 | root_vpbl.pbl_vbase[root_pbl_index].pa_high = | |
2475 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase)>>32))); | |
2476 | root_vpbl.leaf_vpbl[root_pbl_index] = vpbl; | |
2477 | } | |
2478 | root_pbl_index++; | |
2479 | cur_pbl_index = 0; | |
2480 | } | |
2481 | if (single_page) { | |
2482 | if (page_count != 0) { | |
2483 | if ((last_dma_addr+4096) != | |
2484 | (sg_dma_address(&chunk->page_list[nmap_index])+ | |
2485 | (page_index*4096))) | |
2486 | single_page = 0; | |
2487 | last_dma_addr = sg_dma_address(&chunk->page_list[nmap_index])+ | |
2488 | (page_index*4096); | |
2489 | } else { | |
2490 | first_dma_addr = sg_dma_address(&chunk->page_list[nmap_index])+ | |
2491 | (page_index*4096); | |
2492 | last_dma_addr = first_dma_addr; | |
2493 | } | |
2494 | } | |
2495 | ||
2496 | vpbl.pbl_vbase[cur_pbl_index].pa_low = | |
2497 | cpu_to_le32((u32)(sg_dma_address(&chunk->page_list[nmap_index])+ | |
2498 | (page_index*4096))); | |
2499 | vpbl.pbl_vbase[cur_pbl_index].pa_high = | |
2500 | cpu_to_le32((u32)((((u64)(sg_dma_address(&chunk->page_list[nmap_index])+ | |
2501 | (page_index*4096))) >> 32))); | |
2502 | cur_pbl_index++; | |
2503 | page_count++; | |
2504 | } | |
2505 | } | |
2506 | } | |
2507 | enough_pages: | |
2508 | nes_debug(NES_DBG_MR, "calculating stag, stag_index=0x%08x, driver_key=0x%08x," | |
2509 | " stag_key=0x%08x\n", | |
2510 | stag_index, driver_key, stag_key); | |
2511 | stag = stag_index << 8; | |
2512 | stag |= driver_key; | |
2513 | stag += (u32)stag_key; | |
3c2d774c GS |
2514 | |
2515 | iova_start = virt; | |
2516 | /* Make the leaf PBL the root if only one PBL */ | |
2517 | if (root_pbl_index == 1) { | |
2518 | root_vpbl.pbl_pbase = vpbl.pbl_pbase; | |
2519 | } | |
2520 | ||
2521 | if (single_page) { | |
2522 | pbl_count = 0; | |
2523 | } else { | |
2524 | pbl_count = root_pbl_index; | |
2525 | first_dma_addr = 0; | |
2526 | } | |
2527 | nes_debug(NES_DBG_MR, "Registering STag 0x%08X, VA = 0x%08X, length = 0x%08X," | |
2528 | " index = 0x%08X, region->length=0x%08llx, pbl_count = %u\n", | |
2529 | stag, (unsigned int)iova_start, | |
2530 | (unsigned int)region_length, stag_index, | |
2531 | (unsigned long long)region->length, pbl_count); | |
0145f341 DW |
2532 | ret = nes_reg_mr(nesdev, nespd, stag, region->length, &root_vpbl, |
2533 | first_dma_addr, pbl_count, (u16)cur_pbl_index, acc, | |
2534 | &iova_start, &nesmr->pbls_used, &nesmr->pbl_4k); | |
3c2d774c GS |
2535 | |
2536 | nes_debug(NES_DBG_MR, "ret=%d\n", ret); | |
2537 | ||
2538 | if (ret == 0) { | |
2539 | nesmr->ibmr.rkey = stag; | |
2540 | nesmr->ibmr.lkey = stag; | |
2541 | nesmr->mode = IWNES_MEMREG_TYPE_MEM; | |
2542 | ibmr = &nesmr->ibmr; | |
3c2d774c GS |
2543 | } else { |
2544 | ib_umem_release(region); | |
2545 | kfree(nesmr); | |
2546 | ibmr = ERR_PTR(-ENOMEM); | |
2547 | } | |
2548 | ||
2549 | reg_user_mr_err: | |
2550 | /* free the resources */ | |
2551 | if (root_pbl_index == 1) { | |
2552 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | |
2553 | vpbl.pbl_pbase); | |
2554 | } else { | |
2555 | for (page_index=0; page_index<root_pbl_index; page_index++) { | |
2556 | pci_free_consistent(nesdev->pcidev, 4096, | |
2557 | root_vpbl.leaf_vpbl[page_index].pbl_vbase, | |
2558 | root_vpbl.leaf_vpbl[page_index].pbl_pbase); | |
2559 | } | |
2560 | kfree(root_vpbl.leaf_vpbl); | |
2561 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | |
2562 | root_vpbl.pbl_pbase); | |
2563 | } | |
2564 | ||
2565 | nes_debug(NES_DBG_MR, "Leaving, ibmr=%p", ibmr); | |
2566 | ||
2567 | return ibmr; | |
3c2d774c GS |
2568 | case IWNES_MEMREG_TYPE_QP: |
2569 | case IWNES_MEMREG_TYPE_CQ: | |
2570 | nespbl = kzalloc(sizeof(*nespbl), GFP_KERNEL); | |
2571 | if (!nespbl) { | |
2572 | nes_debug(NES_DBG_MR, "Unable to allocate PBL\n"); | |
2573 | ib_umem_release(region); | |
2574 | return ERR_PTR(-ENOMEM); | |
2575 | } | |
2576 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | |
2577 | if (!nesmr) { | |
2578 | ib_umem_release(region); | |
2579 | kfree(nespbl); | |
2580 | nes_debug(NES_DBG_MR, "Unable to allocate nesmr\n"); | |
2581 | return ERR_PTR(-ENOMEM); | |
2582 | } | |
2583 | nesmr->region = region; | |
2584 | nes_ucontext = to_nesucontext(pd->uobject->context); | |
2585 | pbl_depth = region->length >> 12; | |
2586 | pbl_depth += (region->length & (4096-1)) ? 1 : 0; | |
2587 | nespbl->pbl_size = pbl_depth*sizeof(u64); | |
2588 | if (req.reg_type == IWNES_MEMREG_TYPE_QP) { | |
2589 | nes_debug(NES_DBG_MR, "Attempting to allocate QP PBL memory"); | |
2590 | } else { | |
2591 | nes_debug(NES_DBG_MR, "Attempting to allocate CP PBL memory"); | |
2592 | } | |
2593 | ||
2594 | nes_debug(NES_DBG_MR, " %u bytes, %u entries.\n", | |
2595 | nespbl->pbl_size, pbl_depth); | |
2596 | pbl = pci_alloc_consistent(nesdev->pcidev, nespbl->pbl_size, | |
2597 | &nespbl->pbl_pbase); | |
2598 | if (!pbl) { | |
2599 | ib_umem_release(region); | |
2600 | kfree(nesmr); | |
2601 | kfree(nespbl); | |
2602 | nes_debug(NES_DBG_MR, "Unable to allocate PBL memory\n"); | |
2603 | return ERR_PTR(-ENOMEM); | |
2604 | } | |
2605 | ||
2606 | nespbl->pbl_vbase = (u64 *)pbl; | |
2607 | nespbl->user_base = start; | |
71e0957c | 2608 | nes_debug(NES_DBG_MR, "Allocated PBL memory, %u bytes, pbl_pbase=%lx," |
3c2d774c | 2609 | " pbl_vbase=%p user_base=0x%lx\n", |
71e0957c RD |
2610 | nespbl->pbl_size, (unsigned long) nespbl->pbl_pbase, |
2611 | (void *) nespbl->pbl_vbase, nespbl->user_base); | |
3c2d774c GS |
2612 | |
2613 | list_for_each_entry(chunk, ®ion->chunk_list, list) { | |
2614 | for (nmap_index = 0; nmap_index < chunk->nmap; ++nmap_index) { | |
2615 | chunk_pages = sg_dma_len(&chunk->page_list[nmap_index]) >> 12; | |
2616 | chunk_pages += (sg_dma_len(&chunk->page_list[nmap_index]) & (4096-1)) ? 1 : 0; | |
2617 | nespbl->page = sg_page(&chunk->page_list[0]); | |
2618 | for (page_index=0; page_index<chunk_pages; page_index++) { | |
2619 | ((__le32 *)pbl)[0] = cpu_to_le32((u32) | |
2620 | (sg_dma_address(&chunk->page_list[nmap_index])+ | |
2621 | (page_index*4096))); | |
2622 | ((__le32 *)pbl)[1] = cpu_to_le32(((u64) | |
2623 | (sg_dma_address(&chunk->page_list[nmap_index])+ | |
2624 | (page_index*4096)))>>32); | |
2625 | nes_debug(NES_DBG_MR, "pbl=%p, *pbl=0x%016llx, 0x%08x%08x\n", pbl, | |
2626 | (unsigned long long)*pbl, | |
2627 | le32_to_cpu(((__le32 *)pbl)[1]), le32_to_cpu(((__le32 *)pbl)[0])); | |
2628 | pbl++; | |
2629 | } | |
2630 | } | |
2631 | } | |
2632 | if (req.reg_type == IWNES_MEMREG_TYPE_QP) { | |
2633 | list_add_tail(&nespbl->list, &nes_ucontext->qp_reg_mem_list); | |
2634 | } else { | |
2635 | list_add_tail(&nespbl->list, &nes_ucontext->cq_reg_mem_list); | |
2636 | } | |
2637 | nesmr->ibmr.rkey = -1; | |
2638 | nesmr->ibmr.lkey = -1; | |
2639 | nesmr->mode = req.reg_type; | |
2640 | return &nesmr->ibmr; | |
3c2d774c GS |
2641 | } |
2642 | ||
2643 | return ERR_PTR(-ENOSYS); | |
2644 | } | |
2645 | ||
2646 | ||
2647 | /** | |
2648 | * nes_dereg_mr | |
2649 | */ | |
2650 | static int nes_dereg_mr(struct ib_mr *ib_mr) | |
2651 | { | |
2652 | struct nes_mr *nesmr = to_nesmr(ib_mr); | |
2653 | struct nes_vnic *nesvnic = to_nesvnic(ib_mr->device); | |
2654 | struct nes_device *nesdev = nesvnic->nesdev; | |
2655 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
2656 | struct nes_hw_cqp_wqe *cqp_wqe; | |
2657 | struct nes_cqp_request *cqp_request; | |
2658 | unsigned long flags; | |
2659 | int ret; | |
2660 | u16 major_code; | |
2661 | u16 minor_code; | |
2662 | ||
2663 | if (nesmr->region) { | |
2664 | ib_umem_release(nesmr->region); | |
2665 | } | |
2666 | if (nesmr->mode != IWNES_MEMREG_TYPE_MEM) { | |
2667 | kfree(nesmr); | |
2668 | return 0; | |
2669 | } | |
2670 | ||
2671 | /* Deallocate the region with the adapter */ | |
2672 | ||
2673 | cqp_request = nes_get_cqp_request(nesdev); | |
2674 | if (cqp_request == NULL) { | |
2675 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | |
2676 | return -ENOMEM; | |
2677 | } | |
2678 | cqp_request->waiting = 1; | |
2679 | cqp_wqe = &cqp_request->cqp_wqe; | |
2680 | ||
3c2d774c GS |
2681 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); |
2682 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, | |
2683 | NES_CQP_DEALLOCATE_STAG | NES_CQP_STAG_VA_TO | | |
2684 | NES_CQP_STAG_DEALLOC_PBLS | NES_CQP_STAG_MR); | |
2685 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, ib_mr->rkey); | |
2686 | ||
2687 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 2688 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
2689 | |
2690 | /* Wait for CQP */ | |
2691 | nes_debug(NES_DBG_MR, "Waiting for deallocate STag 0x%08X completed\n", ib_mr->rkey); | |
2692 | ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0), | |
2693 | NES_EVENT_TIMEOUT); | |
2694 | nes_debug(NES_DBG_MR, "Deallocate STag 0x%08X completed, wait_event_timeout ret = %u," | |
2695 | " CQP Major:Minor codes = 0x%04X:0x%04X\n", | |
2696 | ib_mr->rkey, ret, cqp_request->major_code, cqp_request->minor_code); | |
2697 | ||
3c2d774c GS |
2698 | major_code = cqp_request->major_code; |
2699 | minor_code = cqp_request->minor_code; | |
1ff66e8c RD |
2700 | |
2701 | nes_put_cqp_request(nesdev, cqp_request); | |
2702 | ||
3c2d774c GS |
2703 | if (!ret) { |
2704 | nes_debug(NES_DBG_MR, "Timeout waiting to destroy STag," | |
2705 | " ib_mr=%p, rkey = 0x%08X\n", | |
2706 | ib_mr, ib_mr->rkey); | |
2707 | return -ETIME; | |
2708 | } else if (major_code) { | |
2709 | nes_debug(NES_DBG_MR, "Error (0x%04X:0x%04X) while attempting" | |
2710 | " to destroy STag, ib_mr=%p, rkey = 0x%08X\n", | |
2711 | major_code, minor_code, ib_mr, ib_mr->rkey); | |
2712 | return -EIO; | |
dae5d13a DW |
2713 | } |
2714 | ||
2715 | if (nesmr->pbls_used != 0) { | |
2716 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
2717 | if (nesmr->pbl_4k) { | |
2718 | nesadapter->free_4kpbl += nesmr->pbls_used; | |
2719 | if (nesadapter->free_4kpbl > nesadapter->max_4kpbl) | |
2720 | printk(KERN_ERR PFX "free 4KB PBLs(%u) has " | |
2721 | "exceeded the max(%u)\n", | |
2722 | nesadapter->free_4kpbl, | |
2723 | nesadapter->max_4kpbl); | |
2724 | } else { | |
2725 | nesadapter->free_256pbl += nesmr->pbls_used; | |
2726 | if (nesadapter->free_256pbl > nesadapter->max_256pbl) | |
2727 | printk(KERN_ERR PFX "free 256B PBLs(%u) has " | |
2728 | "exceeded the max(%u)\n", | |
2729 | nesadapter->free_256pbl, | |
2730 | nesadapter->max_256pbl); | |
2731 | } | |
2732 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
2733 | } | |
2734 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | |
2735 | (ib_mr->rkey & 0x0fffff00) >> 8); | |
2736 | ||
2737 | kfree(nesmr); | |
2738 | ||
2739 | return 0; | |
3c2d774c GS |
2740 | } |
2741 | ||
2742 | ||
2743 | /** | |
2744 | * show_rev | |
2745 | */ | |
f4e91eb4 TJ |
2746 | static ssize_t show_rev(struct device *dev, struct device_attribute *attr, |
2747 | char *buf) | |
3c2d774c GS |
2748 | { |
2749 | struct nes_ib_device *nesibdev = | |
f4e91eb4 | 2750 | container_of(dev, struct nes_ib_device, ibdev.dev); |
3c2d774c GS |
2751 | struct nes_vnic *nesvnic = nesibdev->nesvnic; |
2752 | ||
2753 | nes_debug(NES_DBG_INIT, "\n"); | |
2754 | return sprintf(buf, "%x\n", nesvnic->nesdev->nesadapter->hw_rev); | |
2755 | } | |
2756 | ||
2757 | ||
2758 | /** | |
2759 | * show_fw_ver | |
2760 | */ | |
f4e91eb4 TJ |
2761 | static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, |
2762 | char *buf) | |
3c2d774c GS |
2763 | { |
2764 | struct nes_ib_device *nesibdev = | |
f4e91eb4 | 2765 | container_of(dev, struct nes_ib_device, ibdev.dev); |
3c2d774c GS |
2766 | struct nes_vnic *nesvnic = nesibdev->nesvnic; |
2767 | ||
2768 | nes_debug(NES_DBG_INIT, "\n"); | |
0e4562da CT |
2769 | return sprintf(buf, "%u.%u\n", |
2770 | (nesvnic->nesdev->nesadapter->firmware_version >> 16), | |
2771 | (nesvnic->nesdev->nesadapter->firmware_version & 0x000000ff)); | |
3c2d774c GS |
2772 | } |
2773 | ||
2774 | ||
2775 | /** | |
2776 | * show_hca | |
2777 | */ | |
f4e91eb4 TJ |
2778 | static ssize_t show_hca(struct device *dev, struct device_attribute *attr, |
2779 | char *buf) | |
3c2d774c GS |
2780 | { |
2781 | nes_debug(NES_DBG_INIT, "\n"); | |
2782 | return sprintf(buf, "NES020\n"); | |
2783 | } | |
2784 | ||
2785 | ||
2786 | /** | |
2787 | * show_board | |
2788 | */ | |
f4e91eb4 TJ |
2789 | static ssize_t show_board(struct device *dev, struct device_attribute *attr, |
2790 | char *buf) | |
3c2d774c GS |
2791 | { |
2792 | nes_debug(NES_DBG_INIT, "\n"); | |
2793 | return sprintf(buf, "%.*s\n", 32, "NES020 Board ID"); | |
2794 | } | |
2795 | ||
2796 | ||
f4e91eb4 TJ |
2797 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
2798 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
2799 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
2800 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
3c2d774c | 2801 | |
f4e91eb4 TJ |
2802 | static struct device_attribute *nes_dev_attributes[] = { |
2803 | &dev_attr_hw_rev, | |
2804 | &dev_attr_fw_ver, | |
2805 | &dev_attr_hca_type, | |
2806 | &dev_attr_board_id | |
3c2d774c GS |
2807 | }; |
2808 | ||
2809 | ||
2810 | /** | |
2811 | * nes_query_qp | |
2812 | */ | |
2813 | static int nes_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
2814 | int attr_mask, struct ib_qp_init_attr *init_attr) | |
2815 | { | |
2816 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
2817 | ||
2818 | nes_debug(NES_DBG_QP, "\n"); | |
2819 | ||
2820 | attr->qp_access_flags = 0; | |
2821 | attr->cap.max_send_wr = nesqp->hwqp.sq_size; | |
2822 | attr->cap.max_recv_wr = nesqp->hwqp.rq_size; | |
2823 | attr->cap.max_recv_sge = 1; | |
eadde3a1 CT |
2824 | if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) |
2825 | attr->cap.max_inline_data = 0; | |
2826 | else | |
2827 | attr->cap.max_inline_data = 64; | |
3c2d774c GS |
2828 | |
2829 | init_attr->event_handler = nesqp->ibqp.event_handler; | |
2830 | init_attr->qp_context = nesqp->ibqp.qp_context; | |
2831 | init_attr->send_cq = nesqp->ibqp.send_cq; | |
2832 | init_attr->recv_cq = nesqp->ibqp.recv_cq; | |
2833 | init_attr->srq = nesqp->ibqp.srq = nesqp->ibqp.srq; | |
2834 | init_attr->cap = attr->cap; | |
2835 | ||
2836 | return 0; | |
2837 | } | |
2838 | ||
2839 | ||
2840 | /** | |
2841 | * nes_hw_modify_qp | |
2842 | */ | |
2843 | int nes_hw_modify_qp(struct nes_device *nesdev, struct nes_qp *nesqp, | |
8b1c9dc4 | 2844 | u32 next_iwarp_state, u32 termlen, u32 wait_completion) |
3c2d774c GS |
2845 | { |
2846 | struct nes_hw_cqp_wqe *cqp_wqe; | |
2847 | /* struct iw_cm_id *cm_id = nesqp->cm_id; */ | |
2848 | /* struct iw_cm_event cm_event; */ | |
2849 | struct nes_cqp_request *cqp_request; | |
3c2d774c GS |
2850 | int ret; |
2851 | u16 major_code; | |
2852 | ||
2853 | nes_debug(NES_DBG_MOD_QP, "QP%u, refcount=%d\n", | |
2854 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount)); | |
2855 | ||
2856 | cqp_request = nes_get_cqp_request(nesdev); | |
2857 | if (cqp_request == NULL) { | |
2858 | nes_debug(NES_DBG_MOD_QP, "Failed to get a cqp_request.\n"); | |
2859 | return -ENOMEM; | |
2860 | } | |
2861 | if (wait_completion) { | |
2862 | cqp_request->waiting = 1; | |
2863 | } else { | |
2864 | cqp_request->waiting = 0; | |
2865 | } | |
2866 | cqp_wqe = &cqp_request->cqp_wqe; | |
2867 | ||
2868 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, | |
2869 | NES_CQP_MODIFY_QP | NES_CQP_QP_TYPE_IWARP | next_iwarp_state); | |
2870 | nes_debug(NES_DBG_MOD_QP, "using next_iwarp_state=%08x, wqe_words=%08x\n", | |
2871 | next_iwarp_state, le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX])); | |
2872 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
2873 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id); | |
2874 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, (u64)nesqp->nesqp_context_pbase); | |
2875 | ||
8b1c9dc4 DW |
2876 | /* If sending a terminate message, fill in the length (in words) */ |
2877 | if (((next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK) == NES_CQP_QP_IWARP_STATE_TERMINATE) && | |
2878 | !(next_iwarp_state & NES_CQP_QP_TERM_DONT_SEND_TERM_MSG)) { | |
2879 | termlen = ((termlen + 3) >> 2) << NES_CQP_OP_TERMLEN_SHIFT; | |
2880 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_NEW_MSS_IDX, termlen); | |
2881 | } | |
2882 | ||
3c2d774c | 2883 | atomic_set(&cqp_request->refcount, 2); |
8294f297 | 2884 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
2885 | |
2886 | /* Wait for CQP */ | |
2887 | if (wait_completion) { | |
2888 | /* nes_debug(NES_DBG_MOD_QP, "Waiting for modify iWARP QP%u to complete.\n", | |
2889 | nesqp->hwqp.qp_id); */ | |
2890 | ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0), | |
2891 | NES_EVENT_TIMEOUT); | |
2892 | nes_debug(NES_DBG_MOD_QP, "Modify iwarp QP%u completed, wait_event_timeout ret=%u, " | |
2893 | "CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
2894 | nesqp->hwqp.qp_id, ret, cqp_request->major_code, cqp_request->minor_code); | |
2895 | major_code = cqp_request->major_code; | |
2896 | if (major_code) { | |
2897 | nes_debug(NES_DBG_MOD_QP, "Modify iwarp QP%u failed" | |
2898 | "CQP Major:Minor codes = 0x%04X:0x%04X, intended next state = 0x%08X.\n", | |
2899 | nesqp->hwqp.qp_id, cqp_request->major_code, | |
2900 | cqp_request->minor_code, next_iwarp_state); | |
2901 | } | |
1ff66e8c RD |
2902 | |
2903 | nes_put_cqp_request(nesdev, cqp_request); | |
2904 | ||
3c2d774c GS |
2905 | if (!ret) |
2906 | return -ETIME; | |
2907 | else if (major_code) | |
2908 | return -EIO; | |
2909 | else | |
2910 | return 0; | |
2911 | } else { | |
2912 | return 0; | |
2913 | } | |
2914 | } | |
2915 | ||
2916 | ||
2917 | /** | |
2918 | * nes_modify_qp | |
2919 | */ | |
2920 | int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
2921 | int attr_mask, struct ib_udata *udata) | |
2922 | { | |
2923 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
2924 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | |
2925 | struct nes_device *nesdev = nesvnic->nesdev; | |
2926 | /* u32 cqp_head; */ | |
2927 | /* u32 counter; */ | |
2928 | u32 next_iwarp_state = 0; | |
2929 | int err; | |
2930 | unsigned long qplockflags; | |
2931 | int ret; | |
2932 | u16 original_last_aeq; | |
2933 | u8 issue_modify_qp = 0; | |
2934 | u8 issue_disconnect = 0; | |
2935 | u8 dont_wait = 0; | |
2936 | ||
2937 | nes_debug(NES_DBG_MOD_QP, "QP%u: QP State=%u, cur QP State=%u," | |
2938 | " iwarp_state=0x%X, refcount=%d\n", | |
2939 | nesqp->hwqp.qp_id, attr->qp_state, nesqp->ibqp_state, | |
2940 | nesqp->iwarp_state, atomic_read(&nesqp->refcount)); | |
2941 | ||
3c2d774c GS |
2942 | spin_lock_irqsave(&nesqp->lock, qplockflags); |
2943 | ||
2944 | nes_debug(NES_DBG_MOD_QP, "QP%u: hw_iwarp_state=0x%X, hw_tcp_state=0x%X," | |
2945 | " QP Access Flags=0x%X, attr_mask = 0x%0x\n", | |
2946 | nesqp->hwqp.qp_id, nesqp->hw_iwarp_state, | |
2947 | nesqp->hw_tcp_state, attr->qp_access_flags, attr_mask); | |
2948 | ||
2949 | if (attr_mask & IB_QP_STATE) { | |
2950 | switch (attr->qp_state) { | |
2951 | case IB_QPS_INIT: | |
2952 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = init\n", | |
2953 | nesqp->hwqp.qp_id); | |
2954 | if (nesqp->iwarp_state > (u32)NES_CQP_QP_IWARP_STATE_IDLE) { | |
2955 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
2956 | return -EINVAL; |
2957 | } | |
2958 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_IDLE; | |
2959 | issue_modify_qp = 1; | |
2960 | break; | |
2961 | case IB_QPS_RTR: | |
2962 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = rtr\n", | |
2963 | nesqp->hwqp.qp_id); | |
2964 | if (nesqp->iwarp_state>(u32)NES_CQP_QP_IWARP_STATE_IDLE) { | |
2965 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
2966 | return -EINVAL; |
2967 | } | |
2968 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_IDLE; | |
2969 | issue_modify_qp = 1; | |
2970 | break; | |
2971 | case IB_QPS_RTS: | |
2972 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = rts\n", | |
2973 | nesqp->hwqp.qp_id); | |
2974 | if (nesqp->iwarp_state>(u32)NES_CQP_QP_IWARP_STATE_RTS) { | |
2975 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
2976 | return -EINVAL; |
2977 | } | |
2978 | if (nesqp->cm_id == NULL) { | |
2979 | nes_debug(NES_DBG_MOD_QP, "QP%u: Failing attempt to move QP to RTS without a CM_ID. \n", | |
2980 | nesqp->hwqp.qp_id ); | |
2981 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
2982 | return -EINVAL; |
2983 | } | |
2984 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_RTS; | |
2985 | if (nesqp->iwarp_state != NES_CQP_QP_IWARP_STATE_RTS) | |
2986 | next_iwarp_state |= NES_CQP_QP_CONTEXT_VALID | | |
2987 | NES_CQP_QP_ARP_VALID | NES_CQP_QP_ORD_VALID; | |
2988 | issue_modify_qp = 1; | |
2989 | nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_ESTABLISHED; | |
2990 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_RTS; | |
2991 | nesqp->hte_added = 1; | |
2992 | break; | |
2993 | case IB_QPS_SQD: | |
2994 | issue_modify_qp = 1; | |
2995 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state=closing. SQ head=%u, SQ tail=%u\n", | |
2996 | nesqp->hwqp.qp_id, nesqp->hwqp.sq_head, nesqp->hwqp.sq_tail); | |
2997 | if (nesqp->iwarp_state == (u32)NES_CQP_QP_IWARP_STATE_CLOSING) { | |
2998 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
2999 | return 0; |
3000 | } else { | |
3001 | if (nesqp->iwarp_state > (u32)NES_CQP_QP_IWARP_STATE_CLOSING) { | |
3002 | nes_debug(NES_DBG_MOD_QP, "QP%u: State change to closing" | |
3003 | " ignored due to current iWARP state\n", | |
3004 | nesqp->hwqp.qp_id); | |
3005 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
3006 | return -EINVAL; |
3007 | } | |
3008 | if (nesqp->hw_iwarp_state != NES_AEQE_IWARP_STATE_RTS) { | |
3009 | nes_debug(NES_DBG_MOD_QP, "QP%u: State change to closing" | |
3010 | " already done based on hw state.\n", | |
3011 | nesqp->hwqp.qp_id); | |
3012 | issue_modify_qp = 0; | |
3c2d774c GS |
3013 | } |
3014 | switch (nesqp->hw_iwarp_state) { | |
3015 | case NES_AEQE_IWARP_STATE_CLOSING: | |
3016 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING; | |
3017 | case NES_AEQE_IWARP_STATE_TERMINATE: | |
3018 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_TERMINATE; | |
3019 | break; | |
3020 | case NES_AEQE_IWARP_STATE_ERROR: | |
3021 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR; | |
3022 | break; | |
3023 | default: | |
3024 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING; | |
3c2d774c GS |
3025 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING; |
3026 | break; | |
3027 | } | |
3028 | } | |
3029 | break; | |
3030 | case IB_QPS_SQE: | |
3031 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = terminate\n", | |
3032 | nesqp->hwqp.qp_id); | |
3033 | if (nesqp->iwarp_state>=(u32)NES_CQP_QP_IWARP_STATE_TERMINATE) { | |
3034 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
3035 | return -EINVAL; |
3036 | } | |
3037 | /* next_iwarp_state = (NES_CQP_QP_IWARP_STATE_TERMINATE | 0x02000000); */ | |
3038 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_TERMINATE; | |
3039 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_TERMINATE; | |
3040 | issue_modify_qp = 1; | |
3c2d774c GS |
3041 | break; |
3042 | case IB_QPS_ERR: | |
3043 | case IB_QPS_RESET: | |
3044 | if (nesqp->iwarp_state == (u32)NES_CQP_QP_IWARP_STATE_ERROR) { | |
3045 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
3046 | return -EINVAL; |
3047 | } | |
3048 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = error\n", | |
3049 | nesqp->hwqp.qp_id); | |
8b1c9dc4 DW |
3050 | if (nesqp->term_flags) |
3051 | del_timer(&nesqp->terminate_timer); | |
3052 | ||
3c2d774c GS |
3053 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR; |
3054 | /* next_iwarp_state = (NES_CQP_QP_IWARP_STATE_TERMINATE | 0x02000000); */ | |
3055 | if (nesqp->hte_added) { | |
3056 | nes_debug(NES_DBG_MOD_QP, "set CQP_QP_DEL_HTE\n"); | |
3057 | next_iwarp_state |= NES_CQP_QP_DEL_HTE; | |
3058 | nesqp->hte_added = 0; | |
3059 | } | |
3060 | if ((nesqp->hw_tcp_state > NES_AEQE_TCP_STATE_CLOSED) && | |
3061 | (nesqp->hw_tcp_state != NES_AEQE_TCP_STATE_TIME_WAIT)) { | |
3062 | next_iwarp_state |= NES_CQP_QP_RESET; | |
3c2d774c GS |
3063 | } else { |
3064 | nes_debug(NES_DBG_MOD_QP, "QP%u NOT setting NES_CQP_QP_RESET since TCP state = %u\n", | |
3065 | nesqp->hwqp.qp_id, nesqp->hw_tcp_state); | |
3066 | dont_wait = 1; | |
3067 | } | |
3068 | issue_modify_qp = 1; | |
3069 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_ERROR; | |
3070 | break; | |
3071 | default: | |
3072 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
3073 | return -EINVAL; |
3074 | break; | |
3075 | } | |
3076 | ||
3077 | nesqp->ibqp_state = attr->qp_state; | |
3078 | if (((nesqp->iwarp_state & NES_CQP_QP_IWARP_STATE_MASK) == | |
3079 | (u32)NES_CQP_QP_IWARP_STATE_RTS) && | |
3080 | ((next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK) > | |
3081 | (u32)NES_CQP_QP_IWARP_STATE_RTS)) { | |
3082 | nesqp->iwarp_state = next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK; | |
3083 | nes_debug(NES_DBG_MOD_QP, "Change nesqp->iwarp_state=%08x\n", | |
3084 | nesqp->iwarp_state); | |
3085 | issue_disconnect = 1; | |
3086 | } else { | |
3087 | nesqp->iwarp_state = next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK; | |
3088 | nes_debug(NES_DBG_MOD_QP, "Change nesqp->iwarp_state=%08x\n", | |
3089 | nesqp->iwarp_state); | |
3090 | } | |
3091 | } | |
3092 | ||
3093 | if (attr_mask & IB_QP_ACCESS_FLAGS) { | |
3094 | if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE) { | |
3095 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_WRITE_EN | | |
3096 | NES_QPCONTEXT_MISC_RDMA_READ_EN); | |
3097 | issue_modify_qp = 1; | |
3098 | } | |
3099 | if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE) { | |
3100 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_WRITE_EN); | |
3101 | issue_modify_qp = 1; | |
3102 | } | |
3103 | if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ) { | |
3104 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_READ_EN); | |
3105 | issue_modify_qp = 1; | |
3106 | } | |
3107 | if (attr->qp_access_flags & IB_ACCESS_MW_BIND) { | |
3108 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_WBIND_EN); | |
3109 | issue_modify_qp = 1; | |
3110 | } | |
3111 | ||
3112 | if (nesqp->user_mode) { | |
3113 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_WRITE_EN | | |
3114 | NES_QPCONTEXT_MISC_RDMA_READ_EN); | |
3115 | issue_modify_qp = 1; | |
3116 | } | |
3117 | } | |
3118 | ||
3119 | original_last_aeq = nesqp->last_aeq; | |
3120 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3121 | ||
3122 | nes_debug(NES_DBG_MOD_QP, "issue_modify_qp=%u\n", issue_modify_qp); | |
3123 | ||
3124 | ret = 0; | |
3125 | ||
3126 | ||
3127 | if (issue_modify_qp) { | |
3128 | nes_debug(NES_DBG_MOD_QP, "call nes_hw_modify_qp\n"); | |
8b1c9dc4 | 3129 | ret = nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 1); |
3c2d774c GS |
3130 | if (ret) |
3131 | nes_debug(NES_DBG_MOD_QP, "nes_hw_modify_qp (next_iwarp_state = 0x%08X)" | |
3132 | " failed for QP%u.\n", | |
3133 | next_iwarp_state, nesqp->hwqp.qp_id); | |
3134 | ||
3135 | } | |
3136 | ||
3137 | if ((issue_modify_qp) && (nesqp->ibqp_state > IB_QPS_RTS)) { | |
3138 | nes_debug(NES_DBG_MOD_QP, "QP%u Issued ModifyQP refcount (%d)," | |
3139 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | |
3140 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3141 | original_last_aeq, nesqp->last_aeq); | |
3142 | if ((!ret) || | |
3143 | ((original_last_aeq != NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE) && | |
3144 | (ret))) { | |
3145 | if (dont_wait) { | |
3146 | if (nesqp->cm_id && nesqp->hw_tcp_state != 0) { | |
3147 | nes_debug(NES_DBG_MOD_QP, "QP%u Queuing fake disconnect for QP refcount (%d)," | |
3148 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | |
3149 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3150 | original_last_aeq, nesqp->last_aeq); | |
3151 | /* this one is for the cm_disconnect thread */ | |
3c2d774c GS |
3152 | spin_lock_irqsave(&nesqp->lock, qplockflags); |
3153 | nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; | |
3154 | nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT; | |
3155 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3156 | nes_cm_disconn(nesqp); | |
3157 | } else { | |
3158 | nes_debug(NES_DBG_MOD_QP, "QP%u No fake disconnect, QP refcount=%d\n", | |
3159 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount)); | |
3c2d774c GS |
3160 | } |
3161 | } else { | |
3162 | spin_lock_irqsave(&nesqp->lock, qplockflags); | |
3163 | if (nesqp->cm_id) { | |
3164 | /* These two are for the timer thread */ | |
3165 | if (atomic_inc_return(&nesqp->close_timer_started) == 1) { | |
3c2d774c GS |
3166 | nesqp->cm_id->add_ref(nesqp->cm_id); |
3167 | nes_debug(NES_DBG_MOD_QP, "QP%u Not decrementing QP refcount (%d)," | |
3168 | " need ae to finish up, original_last_aeq = 0x%04X." | |
3169 | " last_aeq = 0x%04X, scheduling timer.\n", | |
3170 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3171 | original_last_aeq, nesqp->last_aeq); | |
3172 | schedule_nes_timer(nesqp->cm_node, (struct sk_buff *) nesqp, NES_TIMER_TYPE_CLOSE, 1, 0); | |
3173 | } | |
3174 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3175 | } else { | |
3176 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3177 | nes_debug(NES_DBG_MOD_QP, "QP%u Not decrementing QP refcount (%d)," | |
3178 | " need ae to finish up, original_last_aeq = 0x%04X." | |
3179 | " last_aeq = 0x%04X.\n", | |
3180 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3181 | original_last_aeq, nesqp->last_aeq); | |
3182 | } | |
3183 | } | |
3184 | } else { | |
3185 | nes_debug(NES_DBG_MOD_QP, "QP%u Decrementing QP refcount (%d), No ae to finish up," | |
3186 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | |
3187 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3188 | original_last_aeq, nesqp->last_aeq); | |
3c2d774c GS |
3189 | } |
3190 | } else { | |
3191 | nes_debug(NES_DBG_MOD_QP, "QP%u Decrementing QP refcount (%d), No ae to finish up," | |
3192 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | |
3193 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3194 | original_last_aeq, nesqp->last_aeq); | |
3c2d774c GS |
3195 | } |
3196 | ||
3197 | err = 0; | |
3198 | ||
3199 | nes_debug(NES_DBG_MOD_QP, "QP%u Leaving, refcount=%d\n", | |
3200 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount)); | |
3201 | ||
3202 | return err; | |
3203 | } | |
3204 | ||
3205 | ||
3206 | /** | |
3207 | * nes_muticast_attach | |
3208 | */ | |
3209 | static int nes_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
3210 | { | |
3211 | nes_debug(NES_DBG_INIT, "\n"); | |
3212 | return -ENOSYS; | |
3213 | } | |
3214 | ||
3215 | ||
3216 | /** | |
3217 | * nes_multicast_detach | |
3218 | */ | |
3219 | static int nes_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
3220 | { | |
3221 | nes_debug(NES_DBG_INIT, "\n"); | |
3222 | return -ENOSYS; | |
3223 | } | |
3224 | ||
3225 | ||
3226 | /** | |
3227 | * nes_process_mad | |
3228 | */ | |
3229 | static int nes_process_mad(struct ib_device *ibdev, int mad_flags, | |
3230 | u8 port_num, struct ib_wc *in_wc, struct ib_grh *in_grh, | |
3231 | struct ib_mad *in_mad, struct ib_mad *out_mad) | |
3232 | { | |
3233 | nes_debug(NES_DBG_INIT, "\n"); | |
3234 | return -ENOSYS; | |
3235 | } | |
3236 | ||
3237 | static inline void | |
3238 | fill_wqe_sg_send(struct nes_hw_qp_wqe *wqe, struct ib_send_wr *ib_wr, u32 uselkey) | |
3239 | { | |
3240 | int sge_index; | |
3241 | int total_payload_length = 0; | |
3242 | for (sge_index = 0; sge_index < ib_wr->num_sge; sge_index++) { | |
3243 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_FRAG0_LOW_IDX+(sge_index*4), | |
3244 | ib_wr->sg_list[sge_index].addr); | |
3245 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_LENGTH0_IDX + (sge_index*4), | |
3246 | ib_wr->sg_list[sge_index].length); | |
3247 | if (uselkey) | |
3248 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_STAG0_IDX + (sge_index*4), | |
3249 | (ib_wr->sg_list[sge_index].lkey)); | |
3250 | else | |
3251 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_STAG0_IDX + (sge_index*4), 0); | |
3252 | ||
3253 | total_payload_length += ib_wr->sg_list[sge_index].length; | |
3254 | } | |
3255 | nes_debug(NES_DBG_IW_TX, "UC UC UC, sending total_payload_length=%u \n", | |
3256 | total_payload_length); | |
3257 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX, | |
3258 | total_payload_length); | |
3259 | } | |
3260 | ||
3261 | /** | |
3262 | * nes_post_send | |
3263 | */ | |
3264 | static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr, | |
3265 | struct ib_send_wr **bad_wr) | |
3266 | { | |
3267 | u64 u64temp; | |
3268 | unsigned long flags = 0; | |
3269 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | |
3270 | struct nes_device *nesdev = nesvnic->nesdev; | |
3271 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
3272 | struct nes_hw_qp_wqe *wqe; | |
649fe4ae | 3273 | int err = 0; |
3c2d774c GS |
3274 | u32 qsize = nesqp->hwqp.sq_size; |
3275 | u32 head; | |
649fe4ae CT |
3276 | u32 wqe_misc = 0; |
3277 | u32 wqe_count = 0; | |
3c2d774c | 3278 | u32 counter; |
3c2d774c | 3279 | |
e5dec394 FZ |
3280 | if (nesqp->ibqp_state > IB_QPS_RTS) { |
3281 | err = -EINVAL; | |
3282 | goto out; | |
3283 | } | |
3c2d774c | 3284 | |
5880ff19 | 3285 | spin_lock_irqsave(&nesqp->lock, flags); |
3c2d774c GS |
3286 | |
3287 | head = nesqp->hwqp.sq_head; | |
3288 | ||
3289 | while (ib_wr) { | |
8b1c9dc4 DW |
3290 | /* Check for QP error */ |
3291 | if (nesqp->term_flags) { | |
3292 | err = -EINVAL; | |
3293 | break; | |
3294 | } | |
3295 | ||
3c2d774c GS |
3296 | /* Check for SQ overflow */ |
3297 | if (((head + (2 * qsize) - nesqp->hwqp.sq_tail) % qsize) == (qsize - 1)) { | |
831d06cf | 3298 | err = -ENOMEM; |
3c2d774c GS |
3299 | break; |
3300 | } | |
3301 | ||
3302 | wqe = &nesqp->hwqp.sq_vbase[head]; | |
3303 | /* nes_debug(NES_DBG_IW_TX, "processing sq wqe for QP%u at %p, head = %u.\n", | |
3304 | nesqp->hwqp.qp_id, wqe, head); */ | |
3305 | nes_fill_init_qp_wqe(wqe, nesqp, head); | |
3306 | u64temp = (u64)(ib_wr->wr_id); | |
3307 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, | |
3308 | u64temp); | |
649fe4ae CT |
3309 | switch (ib_wr->opcode) { |
3310 | case IB_WR_SEND: | |
3311 | case IB_WR_SEND_WITH_INV: | |
3312 | if (IB_WR_SEND == ib_wr->opcode) { | |
3313 | if (ib_wr->send_flags & IB_SEND_SOLICITED) | |
3314 | wqe_misc = NES_IWARP_SQ_OP_SENDSE; | |
3315 | else | |
3316 | wqe_misc = NES_IWARP_SQ_OP_SEND; | |
3317 | } else { | |
3318 | if (ib_wr->send_flags & IB_SEND_SOLICITED) | |
3319 | wqe_misc = NES_IWARP_SQ_OP_SENDSEINV; | |
3320 | else | |
3321 | wqe_misc = NES_IWARP_SQ_OP_SENDINV; | |
3c2d774c | 3322 | |
649fe4ae CT |
3323 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_INV_STAG_LOW_IDX, |
3324 | ib_wr->ex.invalidate_rkey); | |
3325 | } | |
3c2d774c | 3326 | |
649fe4ae CT |
3327 | if (ib_wr->num_sge > nesdev->nesadapter->max_sge) { |
3328 | err = -EINVAL; | |
3329 | break; | |
3c2d774c GS |
3330 | } |
3331 | ||
649fe4ae CT |
3332 | if (ib_wr->send_flags & IB_SEND_FENCE) |
3333 | wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE; | |
3334 | ||
3335 | if ((ib_wr->send_flags & IB_SEND_INLINE) && | |
3336 | ((nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) == 0) && | |
3337 | (ib_wr->sg_list[0].length <= 64)) { | |
3338 | memcpy(&wqe->wqe_words[NES_IWARP_SQ_WQE_IMM_DATA_START_IDX], | |
3339 | (void *)(unsigned long)ib_wr->sg_list[0].addr, ib_wr->sg_list[0].length); | |
3340 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX, | |
3341 | ib_wr->sg_list[0].length); | |
3342 | wqe_misc |= NES_IWARP_SQ_WQE_IMM_DATA; | |
3343 | } else { | |
3344 | fill_wqe_sg_send(wqe, ib_wr, 1); | |
3345 | } | |
3346 | ||
3347 | break; | |
3348 | case IB_WR_RDMA_WRITE: | |
3349 | wqe_misc = NES_IWARP_SQ_OP_RDMAW; | |
3350 | if (ib_wr->num_sge > nesdev->nesadapter->max_sge) { | |
3351 | nes_debug(NES_DBG_IW_TX, "Exceeded max sge, ib_wr=%u, max=%u\n", | |
3352 | ib_wr->num_sge, nesdev->nesadapter->max_sge); | |
3353 | err = -EINVAL; | |
3354 | break; | |
3355 | } | |
3356 | ||
3357 | if (ib_wr->send_flags & IB_SEND_FENCE) | |
3358 | wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE; | |
3359 | ||
3360 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_STAG_IDX, | |
3361 | ib_wr->wr.rdma.rkey); | |
3362 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX, | |
3363 | ib_wr->wr.rdma.remote_addr); | |
3364 | ||
3365 | if ((ib_wr->send_flags & IB_SEND_INLINE) && | |
3366 | ((nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) == 0) && | |
3367 | (ib_wr->sg_list[0].length <= 64)) { | |
3368 | memcpy(&wqe->wqe_words[NES_IWARP_SQ_WQE_IMM_DATA_START_IDX], | |
3369 | (void *)(unsigned long)ib_wr->sg_list[0].addr, ib_wr->sg_list[0].length); | |
3370 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX, | |
3371 | ib_wr->sg_list[0].length); | |
3372 | wqe_misc |= NES_IWARP_SQ_WQE_IMM_DATA; | |
3373 | } else { | |
3374 | fill_wqe_sg_send(wqe, ib_wr, 1); | |
3375 | } | |
3376 | ||
3377 | wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX] = | |
3378 | wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX]; | |
3379 | break; | |
3380 | case IB_WR_RDMA_READ: | |
3381 | case IB_WR_RDMA_READ_WITH_INV: | |
3382 | /* iWARP only supports 1 sge for RDMA reads */ | |
3383 | if (ib_wr->num_sge > 1) { | |
3384 | nes_debug(NES_DBG_IW_TX, "Exceeded max sge, ib_wr=%u, max=1\n", | |
3385 | ib_wr->num_sge); | |
3386 | err = -EINVAL; | |
3387 | break; | |
3388 | } | |
3389 | if (ib_wr->opcode == IB_WR_RDMA_READ) { | |
3390 | wqe_misc = NES_IWARP_SQ_OP_RDMAR; | |
3391 | } else { | |
3392 | wqe_misc = NES_IWARP_SQ_OP_RDMAR_LOCINV; | |
3393 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_INV_STAG_LOW_IDX, | |
3394 | ib_wr->ex.invalidate_rkey); | |
3395 | } | |
3396 | ||
3397 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX, | |
3398 | ib_wr->wr.rdma.remote_addr); | |
3399 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_STAG_IDX, | |
3400 | ib_wr->wr.rdma.rkey); | |
3401 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX, | |
3402 | ib_wr->sg_list->length); | |
3403 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_FRAG0_LOW_IDX, | |
3404 | ib_wr->sg_list->addr); | |
3405 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_STAG0_IDX, | |
3406 | ib_wr->sg_list->lkey); | |
3407 | break; | |
3408 | case IB_WR_LOCAL_INV: | |
3409 | wqe_misc = NES_IWARP_SQ_OP_LOCINV; | |
3410 | set_wqe_32bit_value(wqe->wqe_words, | |
3411 | NES_IWARP_SQ_LOCINV_WQE_INV_STAG_IDX, | |
3412 | ib_wr->ex.invalidate_rkey); | |
3413 | break; | |
e293a26f CT |
3414 | case IB_WR_FAST_REG_MR: |
3415 | { | |
3416 | int i; | |
3417 | int flags = ib_wr->wr.fast_reg.access_flags; | |
3418 | struct nes_ib_fast_reg_page_list *pnesfrpl = | |
3419 | container_of(ib_wr->wr.fast_reg.page_list, | |
3420 | struct nes_ib_fast_reg_page_list, | |
3421 | ibfrpl); | |
3422 | u64 *src_page_list = pnesfrpl->ibfrpl.page_list; | |
3423 | u64 *dst_page_list = pnesfrpl->nes_wqe_pbl.kva; | |
3424 | ||
3425 | if (ib_wr->wr.fast_reg.page_list_len > | |
3426 | (NES_4K_PBL_CHUNK_SIZE / sizeof(u64))) { | |
3427 | nes_debug(NES_DBG_IW_TX, "SQ_FMR: bad page_list_len\n"); | |
3428 | err = -EINVAL; | |
3429 | break; | |
3430 | } | |
3431 | wqe_misc = NES_IWARP_SQ_OP_FAST_REG; | |
3432 | set_wqe_64bit_value(wqe->wqe_words, | |
3433 | NES_IWARP_SQ_FMR_WQE_VA_FBO_LOW_IDX, | |
3434 | ib_wr->wr.fast_reg.iova_start); | |
3435 | set_wqe_32bit_value(wqe->wqe_words, | |
3436 | NES_IWARP_SQ_FMR_WQE_LENGTH_LOW_IDX, | |
3437 | ib_wr->wr.fast_reg.length); | |
3438 | set_wqe_32bit_value(wqe->wqe_words, | |
3439 | NES_IWARP_SQ_FMR_WQE_MR_STAG_IDX, | |
3440 | ib_wr->wr.fast_reg.rkey); | |
3441 | /* Set page size: */ | |
3442 | if (ib_wr->wr.fast_reg.page_shift == 12) { | |
3443 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_PAGE_SIZE_4K; | |
3444 | } else if (ib_wr->wr.fast_reg.page_shift == 21) { | |
3445 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_PAGE_SIZE_2M; | |
3446 | } else { | |
3447 | nes_debug(NES_DBG_IW_TX, "Invalid page shift," | |
3448 | " ib_wr=%u, max=1\n", ib_wr->num_sge); | |
3449 | err = -EINVAL; | |
3450 | break; | |
3451 | } | |
3452 | /* Set access_flags */ | |
3453 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_LOCAL_READ; | |
3454 | if (flags & IB_ACCESS_LOCAL_WRITE) | |
3455 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_LOCAL_WRITE; | |
3456 | ||
3457 | if (flags & IB_ACCESS_REMOTE_WRITE) | |
3458 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_REMOTE_WRITE; | |
3459 | ||
3460 | if (flags & IB_ACCESS_REMOTE_READ) | |
3461 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_REMOTE_READ; | |
3462 | ||
3463 | if (flags & IB_ACCESS_MW_BIND) | |
3464 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_WINDOW_BIND; | |
3465 | ||
3466 | /* Fill in PBL info: */ | |
3467 | if (ib_wr->wr.fast_reg.page_list_len > | |
3468 | pnesfrpl->ibfrpl.max_page_list_len) { | |
3469 | nes_debug(NES_DBG_IW_TX, "Invalid page list length," | |
3470 | " ib_wr=%p, value=%u, max=%u\n", | |
3471 | ib_wr, ib_wr->wr.fast_reg.page_list_len, | |
3472 | pnesfrpl->ibfrpl.max_page_list_len); | |
3473 | err = -EINVAL; | |
3474 | break; | |
3475 | } | |
3476 | ||
3477 | set_wqe_64bit_value(wqe->wqe_words, | |
3478 | NES_IWARP_SQ_FMR_WQE_PBL_ADDR_LOW_IDX, | |
3479 | pnesfrpl->nes_wqe_pbl.paddr); | |
3480 | ||
3481 | set_wqe_32bit_value(wqe->wqe_words, | |
3482 | NES_IWARP_SQ_FMR_WQE_PBL_LENGTH_IDX, | |
3483 | ib_wr->wr.fast_reg.page_list_len * 8); | |
3484 | ||
3485 | for (i = 0; i < ib_wr->wr.fast_reg.page_list_len; i++) | |
3486 | dst_page_list[i] = cpu_to_le64(src_page_list[i]); | |
3487 | ||
3488 | nes_debug(NES_DBG_IW_TX, "SQ_FMR: iova_start: %p, " | |
3489 | "length: %d, rkey: %0x, pgl_paddr: %p, " | |
3490 | "page_list_len: %u, wqe_misc: %x\n", | |
3491 | (void *)ib_wr->wr.fast_reg.iova_start, | |
3492 | ib_wr->wr.fast_reg.length, | |
3493 | ib_wr->wr.fast_reg.rkey, | |
3494 | (void *)pnesfrpl->nes_wqe_pbl.paddr, | |
3495 | ib_wr->wr.fast_reg.page_list_len, | |
3496 | wqe_misc); | |
3497 | break; | |
3498 | } | |
649fe4ae CT |
3499 | default: |
3500 | /* error */ | |
3501 | err = -EINVAL; | |
3502 | break; | |
3503 | } | |
3504 | ||
e5dec394 FZ |
3505 | if (err) |
3506 | break; | |
3507 | ||
d14152da | 3508 | if ((ib_wr->send_flags & IB_SEND_SIGNALED) || nesqp->sig_all) |
3c2d774c | 3509 | wqe_misc |= NES_IWARP_SQ_WQE_SIGNALED_COMPL; |
d14152da | 3510 | |
3c2d774c GS |
3511 | wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = cpu_to_le32(wqe_misc); |
3512 | ||
3513 | ib_wr = ib_wr->next; | |
3514 | head++; | |
3515 | wqe_count++; | |
3516 | if (head >= qsize) | |
3517 | head = 0; | |
3518 | ||
3519 | } | |
3520 | ||
3521 | nesqp->hwqp.sq_head = head; | |
3522 | barrier(); | |
3523 | while (wqe_count) { | |
3524 | counter = min(wqe_count, ((u32)255)); | |
3525 | wqe_count -= counter; | |
3526 | nes_write32(nesdev->regs + NES_WQE_ALLOC, | |
3527 | (counter << 24) | 0x00800000 | nesqp->hwqp.qp_id); | |
3528 | } | |
3529 | ||
5880ff19 | 3530 | spin_unlock_irqrestore(&nesqp->lock, flags); |
3c2d774c | 3531 | |
e5dec394 | 3532 | out: |
3c2d774c GS |
3533 | if (err) |
3534 | *bad_wr = ib_wr; | |
3535 | return err; | |
3536 | } | |
3537 | ||
3538 | ||
3539 | /** | |
3540 | * nes_post_recv | |
3541 | */ | |
3542 | static int nes_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *ib_wr, | |
3543 | struct ib_recv_wr **bad_wr) | |
3544 | { | |
3545 | u64 u64temp; | |
3546 | unsigned long flags = 0; | |
3547 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | |
3548 | struct nes_device *nesdev = nesvnic->nesdev; | |
3549 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
3550 | struct nes_hw_qp_wqe *wqe; | |
3551 | int err = 0; | |
3552 | int sge_index; | |
3553 | u32 qsize = nesqp->hwqp.rq_size; | |
3554 | u32 head; | |
3555 | u32 wqe_count = 0; | |
3556 | u32 counter; | |
3557 | u32 total_payload_length; | |
3558 | ||
4293fdc1 FZ |
3559 | if (nesqp->ibqp_state > IB_QPS_RTS) { |
3560 | err = -EINVAL; | |
3561 | goto out; | |
3562 | } | |
3c2d774c | 3563 | |
5880ff19 | 3564 | spin_lock_irqsave(&nesqp->lock, flags); |
3c2d774c GS |
3565 | |
3566 | head = nesqp->hwqp.rq_head; | |
3567 | ||
3568 | while (ib_wr) { | |
8b1c9dc4 DW |
3569 | /* Check for QP error */ |
3570 | if (nesqp->term_flags) { | |
3571 | err = -EINVAL; | |
3572 | break; | |
3573 | } | |
3574 | ||
3c2d774c GS |
3575 | if (ib_wr->num_sge > nesdev->nesadapter->max_sge) { |
3576 | err = -EINVAL; | |
3577 | break; | |
3578 | } | |
3579 | /* Check for RQ overflow */ | |
3580 | if (((head + (2 * qsize) - nesqp->hwqp.rq_tail) % qsize) == (qsize - 1)) { | |
831d06cf | 3581 | err = -ENOMEM; |
3c2d774c GS |
3582 | break; |
3583 | } | |
3584 | ||
3585 | nes_debug(NES_DBG_IW_RX, "ibwr sge count = %u.\n", ib_wr->num_sge); | |
3586 | wqe = &nesqp->hwqp.rq_vbase[head]; | |
3587 | ||
3588 | /* nes_debug(NES_DBG_IW_RX, "QP%u:processing rq wqe at %p, head = %u.\n", | |
3589 | nesqp->hwqp.qp_id, wqe, head); */ | |
3590 | nes_fill_init_qp_wqe(wqe, nesqp, head); | |
3591 | u64temp = (u64)(ib_wr->wr_id); | |
3592 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, | |
3593 | u64temp); | |
3594 | total_payload_length = 0; | |
3595 | for (sge_index=0; sge_index < ib_wr->num_sge; sge_index++) { | |
3596 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_RQ_WQE_FRAG0_LOW_IDX+(sge_index*4), | |
3597 | ib_wr->sg_list[sge_index].addr); | |
3598 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_RQ_WQE_LENGTH0_IDX+(sge_index*4), | |
3599 | ib_wr->sg_list[sge_index].length); | |
3600 | set_wqe_32bit_value(wqe->wqe_words,NES_IWARP_RQ_WQE_STAG0_IDX+(sge_index*4), | |
3601 | ib_wr->sg_list[sge_index].lkey); | |
3602 | ||
3603 | total_payload_length += ib_wr->sg_list[sge_index].length; | |
3604 | } | |
3605 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_RQ_WQE_TOTAL_PAYLOAD_IDX, | |
3606 | total_payload_length); | |
3607 | ||
3608 | ib_wr = ib_wr->next; | |
3609 | head++; | |
3610 | wqe_count++; | |
3611 | if (head >= qsize) | |
3612 | head = 0; | |
3613 | } | |
3614 | ||
3615 | nesqp->hwqp.rq_head = head; | |
3616 | barrier(); | |
3617 | while (wqe_count) { | |
3618 | counter = min(wqe_count, ((u32)255)); | |
3619 | wqe_count -= counter; | |
3620 | nes_write32(nesdev->regs+NES_WQE_ALLOC, (counter<<24) | nesqp->hwqp.qp_id); | |
3621 | } | |
3622 | ||
5880ff19 | 3623 | spin_unlock_irqrestore(&nesqp->lock, flags); |
3c2d774c | 3624 | |
4293fdc1 | 3625 | out: |
3c2d774c GS |
3626 | if (err) |
3627 | *bad_wr = ib_wr; | |
3628 | return err; | |
3629 | } | |
3630 | ||
3631 | ||
3632 | /** | |
3633 | * nes_poll_cq | |
3634 | */ | |
3635 | static int nes_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry) | |
3636 | { | |
3637 | u64 u64temp; | |
3638 | u64 wrid; | |
3c2d774c GS |
3639 | unsigned long flags = 0; |
3640 | struct nes_vnic *nesvnic = to_nesvnic(ibcq->device); | |
3641 | struct nes_device *nesdev = nesvnic->nesdev; | |
3642 | struct nes_cq *nescq = to_nescq(ibcq); | |
3643 | struct nes_qp *nesqp; | |
3644 | struct nes_hw_cqe cqe; | |
3645 | u32 head; | |
6eed5e7c | 3646 | u32 wq_tail = 0; |
3c2d774c GS |
3647 | u32 cq_size; |
3648 | u32 cqe_count = 0; | |
3649 | u32 wqe_index; | |
3650 | u32 u32temp; | |
6eed5e7c DW |
3651 | u32 move_cq_head = 1; |
3652 | u32 err_code; | |
3c2d774c GS |
3653 | |
3654 | nes_debug(NES_DBG_CQ, "\n"); | |
3655 | ||
5880ff19 | 3656 | spin_lock_irqsave(&nescq->lock, flags); |
3c2d774c GS |
3657 | |
3658 | head = nescq->hw_cq.cq_head; | |
3659 | cq_size = nescq->hw_cq.cq_size; | |
3660 | ||
3661 | while (cqe_count < num_entries) { | |
5ee21fe0 DW |
3662 | if ((le32_to_cpu(nescq->hw_cq.cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX]) & |
3663 | NES_CQE_VALID) == 0) | |
3664 | break; | |
3665 | ||
3666 | /* | |
3667 | * Make sure we read CQ entry contents *after* | |
3668 | * we've checked the valid bit. | |
3669 | */ | |
3670 | rmb(); | |
3671 | ||
3672 | cqe = nescq->hw_cq.cq_vbase[head]; | |
5ee21fe0 DW |
3673 | u32temp = le32_to_cpu(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]); |
3674 | wqe_index = u32temp & (nesdev->nesadapter->max_qp_wr - 1); | |
3675 | u32temp &= ~(NES_SW_CONTEXT_ALIGN-1); | |
3676 | /* parse CQE, get completion context from WQE (either rq or sq) */ | |
3677 | u64temp = (((u64)(le32_to_cpu(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX])))<<32) | | |
3678 | ((u64)u32temp); | |
3679 | ||
3680 | if (u64temp) { | |
3681 | nesqp = (struct nes_qp *)(unsigned long)u64temp; | |
3c2d774c GS |
3682 | memset(entry, 0, sizeof *entry); |
3683 | if (cqe.cqe_words[NES_CQE_ERROR_CODE_IDX] == 0) { | |
3684 | entry->status = IB_WC_SUCCESS; | |
3685 | } else { | |
320cdfd2 DW |
3686 | err_code = le32_to_cpu(cqe.cqe_words[NES_CQE_ERROR_CODE_IDX]); |
3687 | if (NES_IWARP_CQE_MAJOR_DRV == (err_code >> 16)) { | |
3688 | entry->status = err_code & 0x0000ffff; | |
3689 | ||
3690 | /* The rest of the cqe's will be marked as flushed */ | |
3691 | nescq->hw_cq.cq_vbase[head].cqe_words[NES_CQE_ERROR_CODE_IDX] = | |
3692 | cpu_to_le32((NES_IWARP_CQE_MAJOR_FLUSH << 16) | | |
3693 | NES_IWARP_CQE_MINOR_FLUSH); | |
3694 | } else | |
3695 | entry->status = IB_WC_WR_FLUSH_ERR; | |
3c2d774c GS |
3696 | } |
3697 | ||
3698 | entry->qp = &nesqp->ibqp; | |
3699 | entry->src_qp = nesqp->hwqp.qp_id; | |
3700 | ||
3701 | if (le32_to_cpu(cqe.cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_SQ) { | |
3702 | if (nesqp->skip_lsmm) { | |
3703 | nesqp->skip_lsmm = 0; | |
5ee21fe0 | 3704 | nesqp->hwqp.sq_tail++; |
3c2d774c GS |
3705 | } |
3706 | ||
3707 | /* Working on a SQ Completion*/ | |
6eed5e7c | 3708 | wrid = (((u64)(cpu_to_le32((u32)nesqp->hwqp.sq_vbase[wqe_index]. |
3c2d774c | 3709 | wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_HIGH_IDX]))) << 32) | |
6eed5e7c | 3710 | ((u64)(cpu_to_le32((u32)nesqp->hwqp.sq_vbase[wqe_index]. |
3c2d774c | 3711 | wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX]))); |
6eed5e7c | 3712 | entry->byte_len = le32_to_cpu(nesqp->hwqp.sq_vbase[wqe_index]. |
3c2d774c GS |
3713 | wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX]); |
3714 | ||
6eed5e7c | 3715 | switch (le32_to_cpu(nesqp->hwqp.sq_vbase[wqe_index]. |
3c2d774c GS |
3716 | wqe_words[NES_IWARP_SQ_WQE_MISC_IDX]) & 0x3f) { |
3717 | case NES_IWARP_SQ_OP_RDMAW: | |
3718 | nes_debug(NES_DBG_CQ, "Operation = RDMA WRITE.\n"); | |
3719 | entry->opcode = IB_WC_RDMA_WRITE; | |
3720 | break; | |
3721 | case NES_IWARP_SQ_OP_RDMAR: | |
3722 | nes_debug(NES_DBG_CQ, "Operation = RDMA READ.\n"); | |
3723 | entry->opcode = IB_WC_RDMA_READ; | |
6eed5e7c | 3724 | entry->byte_len = le32_to_cpu(nesqp->hwqp.sq_vbase[wqe_index]. |
3c2d774c GS |
3725 | wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX]); |
3726 | break; | |
3727 | case NES_IWARP_SQ_OP_SENDINV: | |
3728 | case NES_IWARP_SQ_OP_SENDSEINV: | |
3729 | case NES_IWARP_SQ_OP_SEND: | |
3730 | case NES_IWARP_SQ_OP_SENDSE: | |
3731 | nes_debug(NES_DBG_CQ, "Operation = Send.\n"); | |
3732 | entry->opcode = IB_WC_SEND; | |
3733 | break; | |
649fe4ae CT |
3734 | case NES_IWARP_SQ_OP_LOCINV: |
3735 | entry->opcode = IB_WR_LOCAL_INV; | |
3736 | break; | |
e293a26f CT |
3737 | case NES_IWARP_SQ_OP_FAST_REG: |
3738 | entry->opcode = IB_WC_FAST_REG_MR; | |
3739 | break; | |
3c2d774c | 3740 | } |
6eed5e7c DW |
3741 | |
3742 | nesqp->hwqp.sq_tail = (wqe_index+1)&(nesqp->hwqp.sq_size - 1); | |
3743 | if ((entry->status != IB_WC_SUCCESS) && (nesqp->hwqp.sq_tail != nesqp->hwqp.sq_head)) { | |
3744 | move_cq_head = 0; | |
3745 | wq_tail = nesqp->hwqp.sq_tail; | |
3746 | } | |
3c2d774c GS |
3747 | } else { |
3748 | /* Working on a RQ Completion*/ | |
3c2d774c | 3749 | entry->byte_len = le32_to_cpu(cqe.cqe_words[NES_CQE_PAYLOAD_LENGTH_IDX]); |
6eed5e7c DW |
3750 | wrid = ((u64)(le32_to_cpu(nesqp->hwqp.rq_vbase[wqe_index].wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_LOW_IDX]))) | |
3751 | ((u64)(le32_to_cpu(nesqp->hwqp.rq_vbase[wqe_index].wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_HIGH_IDX]))<<32); | |
3c2d774c | 3752 | entry->opcode = IB_WC_RECV; |
6eed5e7c DW |
3753 | |
3754 | nesqp->hwqp.rq_tail = (wqe_index+1)&(nesqp->hwqp.rq_size - 1); | |
3755 | if ((entry->status != IB_WC_SUCCESS) && (nesqp->hwqp.rq_tail != nesqp->hwqp.rq_head)) { | |
3756 | move_cq_head = 0; | |
3757 | wq_tail = nesqp->hwqp.rq_tail; | |
3758 | } | |
3c2d774c | 3759 | } |
3c2d774c | 3760 | |
5ee21fe0 | 3761 | entry->wr_id = wrid; |
3c2d774c | 3762 | entry++; |
5ee21fe0 DW |
3763 | cqe_count++; |
3764 | } | |
3765 | ||
6eed5e7c DW |
3766 | if (move_cq_head) { |
3767 | nescq->hw_cq.cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX] = 0; | |
3768 | if (++head >= cq_size) | |
3769 | head = 0; | |
3770 | nescq->polled_completions++; | |
5ee21fe0 | 3771 | |
6eed5e7c DW |
3772 | if ((nescq->polled_completions > (cq_size / 2)) || |
3773 | (nescq->polled_completions == 255)) { | |
3774 | nes_debug(NES_DBG_CQ, "CQ%u Issuing CQE Allocate since more than half of cqes" | |
5ee21fe0 DW |
3775 | " are pending %u of %u.\n", |
3776 | nescq->hw_cq.cq_number, nescq->polled_completions, cq_size); | |
6eed5e7c | 3777 | nes_write32(nesdev->regs+NES_CQE_ALLOC, |
5ee21fe0 | 3778 | nescq->hw_cq.cq_number | (nescq->polled_completions << 16)); |
6eed5e7c DW |
3779 | nescq->polled_completions = 0; |
3780 | } | |
3781 | } else { | |
3782 | /* Update the wqe index and set status to flush */ | |
3783 | wqe_index = le32_to_cpu(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]); | |
3784 | wqe_index = (wqe_index & (~(nesdev->nesadapter->max_qp_wr - 1))) | wq_tail; | |
3785 | nescq->hw_cq.cq_vbase[head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX] = | |
3786 | cpu_to_le32(wqe_index); | |
3787 | move_cq_head = 1; /* ready for next pass */ | |
5ee21fe0 | 3788 | } |
3c2d774c GS |
3789 | } |
3790 | ||
3791 | if (nescq->polled_completions) { | |
3792 | nes_write32(nesdev->regs+NES_CQE_ALLOC, | |
3793 | nescq->hw_cq.cq_number | (nescq->polled_completions << 16)); | |
3794 | nescq->polled_completions = 0; | |
3795 | } | |
3796 | ||
3797 | nescq->hw_cq.cq_head = head; | |
3798 | nes_debug(NES_DBG_CQ, "Reporting %u completions for CQ%u.\n", | |
3799 | cqe_count, nescq->hw_cq.cq_number); | |
3800 | ||
5880ff19 | 3801 | spin_unlock_irqrestore(&nescq->lock, flags); |
3c2d774c GS |
3802 | |
3803 | return cqe_count; | |
3804 | } | |
3805 | ||
3806 | ||
3807 | /** | |
3808 | * nes_req_notify_cq | |
3809 | */ | |
3810 | static int nes_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags) | |
3811 | { | |
3812 | struct nes_vnic *nesvnic = to_nesvnic(ibcq->device); | |
3813 | struct nes_device *nesdev = nesvnic->nesdev; | |
3814 | struct nes_cq *nescq = to_nescq(ibcq); | |
3815 | u32 cq_arm; | |
3816 | ||
3817 | nes_debug(NES_DBG_CQ, "Requesting notification for CQ%u.\n", | |
3818 | nescq->hw_cq.cq_number); | |
3819 | ||
3820 | cq_arm = nescq->hw_cq.cq_number; | |
3821 | if ((notify_flags & IB_CQ_SOLICITED_MASK) == IB_CQ_NEXT_COMP) | |
3822 | cq_arm |= NES_CQE_ALLOC_NOTIFY_NEXT; | |
3823 | else if ((notify_flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED) | |
3824 | cq_arm |= NES_CQE_ALLOC_NOTIFY_SE; | |
3825 | else | |
3826 | return -EINVAL; | |
3827 | ||
3828 | nes_write32(nesdev->regs+NES_CQE_ALLOC, cq_arm); | |
3829 | nes_read32(nesdev->regs+NES_CQE_ALLOC); | |
3830 | ||
3831 | return 0; | |
3832 | } | |
3833 | ||
3834 | ||
3835 | /** | |
3836 | * nes_init_ofa_device | |
3837 | */ | |
3838 | struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev) | |
3839 | { | |
3840 | struct nes_ib_device *nesibdev; | |
3841 | struct nes_vnic *nesvnic = netdev_priv(netdev); | |
3842 | struct nes_device *nesdev = nesvnic->nesdev; | |
3843 | ||
3844 | nesibdev = (struct nes_ib_device *)ib_alloc_device(sizeof(struct nes_ib_device)); | |
3845 | if (nesibdev == NULL) { | |
3846 | return NULL; | |
3847 | } | |
3848 | strlcpy(nesibdev->ibdev.name, "nes%d", IB_DEVICE_NAME_MAX); | |
3849 | nesibdev->ibdev.owner = THIS_MODULE; | |
3850 | ||
3851 | nesibdev->ibdev.node_type = RDMA_NODE_RNIC; | |
3852 | memset(&nesibdev->ibdev.node_guid, 0, sizeof(nesibdev->ibdev.node_guid)); | |
3853 | memcpy(&nesibdev->ibdev.node_guid, netdev->dev_addr, 6); | |
3854 | ||
3855 | nesibdev->ibdev.uverbs_cmd_mask = | |
3856 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
3857 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
3858 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
3859 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
3860 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
3861 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
3862 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
3863 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
3864 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
3865 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
3866 | (1ull << IB_USER_VERBS_CMD_CREATE_AH) | | |
3867 | (1ull << IB_USER_VERBS_CMD_DESTROY_AH) | | |
3868 | (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | | |
3869 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
3870 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
3871 | (1ull << IB_USER_VERBS_CMD_POLL_CQ) | | |
3872 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
3873 | (1ull << IB_USER_VERBS_CMD_ALLOC_MW) | | |
3874 | (1ull << IB_USER_VERBS_CMD_BIND_MW) | | |
3875 | (1ull << IB_USER_VERBS_CMD_DEALLOC_MW) | | |
3876 | (1ull << IB_USER_VERBS_CMD_POST_RECV) | | |
3877 | (1ull << IB_USER_VERBS_CMD_POST_SEND); | |
3878 | ||
3879 | nesibdev->ibdev.phys_port_cnt = 1; | |
3880 | nesibdev->ibdev.num_comp_vectors = 1; | |
3881 | nesibdev->ibdev.dma_device = &nesdev->pcidev->dev; | |
f4e91eb4 | 3882 | nesibdev->ibdev.dev.parent = &nesdev->pcidev->dev; |
3c2d774c GS |
3883 | nesibdev->ibdev.query_device = nes_query_device; |
3884 | nesibdev->ibdev.query_port = nes_query_port; | |
3885 | nesibdev->ibdev.modify_port = nes_modify_port; | |
3886 | nesibdev->ibdev.query_pkey = nes_query_pkey; | |
3887 | nesibdev->ibdev.query_gid = nes_query_gid; | |
3888 | nesibdev->ibdev.alloc_ucontext = nes_alloc_ucontext; | |
3889 | nesibdev->ibdev.dealloc_ucontext = nes_dealloc_ucontext; | |
3890 | nesibdev->ibdev.mmap = nes_mmap; | |
3891 | nesibdev->ibdev.alloc_pd = nes_alloc_pd; | |
3892 | nesibdev->ibdev.dealloc_pd = nes_dealloc_pd; | |
3893 | nesibdev->ibdev.create_ah = nes_create_ah; | |
3894 | nesibdev->ibdev.destroy_ah = nes_destroy_ah; | |
3895 | nesibdev->ibdev.create_qp = nes_create_qp; | |
3896 | nesibdev->ibdev.modify_qp = nes_modify_qp; | |
3897 | nesibdev->ibdev.query_qp = nes_query_qp; | |
3898 | nesibdev->ibdev.destroy_qp = nes_destroy_qp; | |
3899 | nesibdev->ibdev.create_cq = nes_create_cq; | |
3900 | nesibdev->ibdev.destroy_cq = nes_destroy_cq; | |
3901 | nesibdev->ibdev.poll_cq = nes_poll_cq; | |
3902 | nesibdev->ibdev.get_dma_mr = nes_get_dma_mr; | |
3903 | nesibdev->ibdev.reg_phys_mr = nes_reg_phys_mr; | |
3904 | nesibdev->ibdev.reg_user_mr = nes_reg_user_mr; | |
3905 | nesibdev->ibdev.dereg_mr = nes_dereg_mr; | |
3906 | nesibdev->ibdev.alloc_mw = nes_alloc_mw; | |
3907 | nesibdev->ibdev.dealloc_mw = nes_dealloc_mw; | |
3908 | nesibdev->ibdev.bind_mw = nes_bind_mw; | |
3909 | ||
e293a26f CT |
3910 | nesibdev->ibdev.alloc_fast_reg_mr = nes_alloc_fast_reg_mr; |
3911 | nesibdev->ibdev.alloc_fast_reg_page_list = nes_alloc_fast_reg_page_list; | |
3912 | nesibdev->ibdev.free_fast_reg_page_list = nes_free_fast_reg_page_list; | |
3c2d774c GS |
3913 | |
3914 | nesibdev->ibdev.attach_mcast = nes_multicast_attach; | |
3915 | nesibdev->ibdev.detach_mcast = nes_multicast_detach; | |
3916 | nesibdev->ibdev.process_mad = nes_process_mad; | |
3917 | ||
3918 | nesibdev->ibdev.req_notify_cq = nes_req_notify_cq; | |
3919 | nesibdev->ibdev.post_send = nes_post_send; | |
3920 | nesibdev->ibdev.post_recv = nes_post_recv; | |
3921 | ||
3922 | nesibdev->ibdev.iwcm = kzalloc(sizeof(*nesibdev->ibdev.iwcm), GFP_KERNEL); | |
3923 | if (nesibdev->ibdev.iwcm == NULL) { | |
3924 | ib_dealloc_device(&nesibdev->ibdev); | |
3925 | return NULL; | |
3926 | } | |
3927 | nesibdev->ibdev.iwcm->add_ref = nes_add_ref; | |
3928 | nesibdev->ibdev.iwcm->rem_ref = nes_rem_ref; | |
3929 | nesibdev->ibdev.iwcm->get_qp = nes_get_qp; | |
3930 | nesibdev->ibdev.iwcm->connect = nes_connect; | |
3931 | nesibdev->ibdev.iwcm->accept = nes_accept; | |
3932 | nesibdev->ibdev.iwcm->reject = nes_reject; | |
3933 | nesibdev->ibdev.iwcm->create_listen = nes_create_listen; | |
3934 | nesibdev->ibdev.iwcm->destroy_listen = nes_destroy_listen; | |
3935 | ||
3936 | return nesibdev; | |
3937 | } | |
3938 | ||
3939 | ||
3940 | /** | |
3941 | * nes_destroy_ofa_device | |
3942 | */ | |
3943 | void nes_destroy_ofa_device(struct nes_ib_device *nesibdev) | |
3944 | { | |
3945 | if (nesibdev == NULL) | |
3946 | return; | |
3947 | ||
3948 | nes_unregister_ofa_device(nesibdev); | |
3949 | ||
3950 | kfree(nesibdev->ibdev.iwcm); | |
3951 | ib_dealloc_device(&nesibdev->ibdev); | |
3952 | } | |
3953 | ||
3954 | ||
3955 | /** | |
3956 | * nes_register_ofa_device | |
3957 | */ | |
3958 | int nes_register_ofa_device(struct nes_ib_device *nesibdev) | |
3959 | { | |
3960 | struct nes_vnic *nesvnic = nesibdev->nesvnic; | |
3961 | struct nes_device *nesdev = nesvnic->nesdev; | |
3962 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
3963 | int i, ret; | |
3964 | ||
9a6edb60 | 3965 | ret = ib_register_device(&nesvnic->nesibdev->ibdev, NULL); |
3c2d774c GS |
3966 | if (ret) { |
3967 | return ret; | |
3968 | } | |
3969 | ||
3970 | /* Get the resources allocated to this device */ | |
3971 | nesibdev->max_cq = (nesadapter->max_cq-NES_FIRST_QPN) / nesadapter->port_count; | |
3972 | nesibdev->max_mr = nesadapter->max_mr / nesadapter->port_count; | |
3973 | nesibdev->max_qp = (nesadapter->max_qp-NES_FIRST_QPN) / nesadapter->port_count; | |
3974 | nesibdev->max_pd = nesadapter->max_pd / nesadapter->port_count; | |
3975 | ||
f4e91eb4 TJ |
3976 | for (i = 0; i < ARRAY_SIZE(nes_dev_attributes); ++i) { |
3977 | ret = device_create_file(&nesibdev->ibdev.dev, nes_dev_attributes[i]); | |
3c2d774c GS |
3978 | if (ret) { |
3979 | while (i > 0) { | |
3980 | i--; | |
f4e91eb4 TJ |
3981 | device_remove_file(&nesibdev->ibdev.dev, |
3982 | nes_dev_attributes[i]); | |
3c2d774c GS |
3983 | } |
3984 | ib_unregister_device(&nesibdev->ibdev); | |
3985 | return ret; | |
3986 | } | |
3987 | } | |
3988 | ||
3989 | nesvnic->of_device_registered = 1; | |
3990 | ||
3991 | return 0; | |
3992 | } | |
3993 | ||
3994 | ||
3995 | /** | |
3996 | * nes_unregister_ofa_device | |
3997 | */ | |
1a855fbf | 3998 | static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev) |
3c2d774c GS |
3999 | { |
4000 | struct nes_vnic *nesvnic = nesibdev->nesvnic; | |
4001 | int i; | |
4002 | ||
f4e91eb4 TJ |
4003 | for (i = 0; i < ARRAY_SIZE(nes_dev_attributes); ++i) { |
4004 | device_remove_file(&nesibdev->ibdev.dev, nes_dev_attributes[i]); | |
3c2d774c GS |
4005 | } |
4006 | ||
4007 | if (nesvnic->of_device_registered) { | |
4008 | ib_unregister_device(&nesibdev->ibdev); | |
4009 | } | |
4010 | ||
4011 | nesvnic->of_device_registered = 0; | |
4012 | } |