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3c2d774c | 1 | /* |
c5488c57 | 2 | * Copyright (c) 2006 - 2011 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 | */ | |
7083e42e SM |
58 | static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd, enum ib_mw_type type) |
59 | { | |
3c2d774c GS |
60 | struct nes_pd *nespd = to_nespd(ibpd); |
61 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | |
62 | struct nes_device *nesdev = nesvnic->nesdev; | |
63 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
64 | struct nes_cqp_request *cqp_request; | |
65 | struct nes_mr *nesmr; | |
66 | struct ib_mw *ibmw; | |
67 | struct nes_hw_cqp_wqe *cqp_wqe; | |
68 | int ret; | |
69 | u32 stag; | |
70 | u32 stag_index = 0; | |
71 | u32 next_stag_index = 0; | |
72 | u32 driver_key = 0; | |
73 | u8 stag_key = 0; | |
74 | ||
7083e42e SM |
75 | if (type != IB_MW_TYPE_1) |
76 | return ERR_PTR(-EINVAL); | |
77 | ||
3c2d774c GS |
78 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); |
79 | stag_key = (u8)next_stag_index; | |
80 | ||
81 | driver_key = 0; | |
82 | ||
83 | next_stag_index >>= 8; | |
84 | next_stag_index %= nesadapter->max_mr; | |
85 | ||
86 | ret = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, | |
81821644 | 87 | nesadapter->max_mr, &stag_index, &next_stag_index, NES_RESOURCE_MW); |
3c2d774c GS |
88 | if (ret) { |
89 | return ERR_PTR(ret); | |
90 | } | |
91 | ||
92 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | |
93 | if (!nesmr) { | |
94 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
95 | return ERR_PTR(-ENOMEM); | |
96 | } | |
97 | ||
98 | stag = stag_index << 8; | |
99 | stag |= driver_key; | |
100 | stag += (u32)stag_key; | |
101 | ||
102 | nes_debug(NES_DBG_MR, "Registering STag 0x%08X, index = 0x%08X\n", | |
103 | stag, stag_index); | |
104 | ||
105 | /* Register the region with the adapter */ | |
106 | cqp_request = nes_get_cqp_request(nesdev); | |
107 | if (cqp_request == NULL) { | |
108 | kfree(nesmr); | |
109 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
110 | return ERR_PTR(-ENOMEM); | |
111 | } | |
112 | ||
113 | cqp_request->waiting = 1; | |
114 | cqp_wqe = &cqp_request->cqp_wqe; | |
115 | ||
116 | cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = | |
117 | cpu_to_le32( NES_CQP_ALLOCATE_STAG | NES_CQP_STAG_RIGHTS_REMOTE_READ | | |
118 | NES_CQP_STAG_RIGHTS_REMOTE_WRITE | NES_CQP_STAG_VA_TO | | |
119 | NES_CQP_STAG_REM_ACC_EN); | |
120 | ||
121 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
122 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX, (nespd->pd_id & 0x00007fff)); | |
123 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag); | |
124 | ||
125 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 126 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
127 | |
128 | /* Wait for CQP */ | |
129 | ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0), | |
130 | NES_EVENT_TIMEOUT); | |
131 | nes_debug(NES_DBG_MR, "Register STag 0x%08X completed, wait_event_timeout ret = %u," | |
132 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
133 | stag, ret, cqp_request->major_code, cqp_request->minor_code); | |
134 | if ((!ret) || (cqp_request->major_code)) { | |
1ff66e8c | 135 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
136 | kfree(nesmr); |
137 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
138 | if (!ret) { | |
139 | return ERR_PTR(-ETIME); | |
140 | } else { | |
141 | return ERR_PTR(-ENOMEM); | |
142 | } | |
3c2d774c | 143 | } |
1ff66e8c | 144 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
145 | |
146 | nesmr->ibmw.rkey = stag; | |
147 | nesmr->mode = IWNES_MEMREG_TYPE_MW; | |
148 | ibmw = &nesmr->ibmw; | |
149 | nesmr->pbl_4k = 0; | |
150 | nesmr->pbls_used = 0; | |
151 | ||
152 | return ibmw; | |
153 | } | |
154 | ||
155 | ||
156 | /** | |
157 | * nes_dealloc_mw | |
158 | */ | |
159 | static int nes_dealloc_mw(struct ib_mw *ibmw) | |
160 | { | |
161 | struct nes_mr *nesmr = to_nesmw(ibmw); | |
162 | struct nes_vnic *nesvnic = to_nesvnic(ibmw->device); | |
163 | struct nes_device *nesdev = nesvnic->nesdev; | |
164 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
165 | struct nes_hw_cqp_wqe *cqp_wqe; | |
166 | struct nes_cqp_request *cqp_request; | |
167 | int err = 0; | |
3c2d774c GS |
168 | int ret; |
169 | ||
170 | /* Deallocate the window with the adapter */ | |
171 | cqp_request = nes_get_cqp_request(nesdev); | |
172 | if (cqp_request == NULL) { | |
173 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | |
174 | return -ENOMEM; | |
175 | } | |
176 | cqp_request->waiting = 1; | |
177 | cqp_wqe = &cqp_request->cqp_wqe; | |
178 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
179 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, NES_CQP_DEALLOCATE_STAG); | |
180 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, ibmw->rkey); | |
181 | ||
182 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 183 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
184 | |
185 | /* Wait for CQP */ | |
186 | nes_debug(NES_DBG_MR, "Waiting for deallocate STag 0x%08X to complete.\n", | |
187 | ibmw->rkey); | |
188 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | |
189 | NES_EVENT_TIMEOUT); | |
190 | nes_debug(NES_DBG_MR, "Deallocate STag completed, wait_event_timeout ret = %u," | |
191 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
192 | ret, cqp_request->major_code, cqp_request->minor_code); | |
1ff66e8c RD |
193 | if (!ret) |
194 | err = -ETIME; | |
195 | else if (cqp_request->major_code) | |
196 | err = -EIO; | |
197 | ||
198 | nes_put_cqp_request(nesdev, cqp_request); | |
3c2d774c GS |
199 | |
200 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | |
201 | (ibmw->rkey & 0x0fffff00) >> 8); | |
202 | kfree(nesmr); | |
203 | ||
204 | return err; | |
205 | } | |
206 | ||
207 | ||
208 | /** | |
209 | * nes_bind_mw | |
210 | */ | |
211 | static int nes_bind_mw(struct ib_qp *ibqp, struct ib_mw *ibmw, | |
212 | struct ib_mw_bind *ibmw_bind) | |
213 | { | |
214 | u64 u64temp; | |
215 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | |
216 | struct nes_device *nesdev = nesvnic->nesdev; | |
217 | /* struct nes_mr *nesmr = to_nesmw(ibmw); */ | |
218 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
219 | struct nes_hw_qp_wqe *wqe; | |
220 | unsigned long flags = 0; | |
221 | u32 head; | |
222 | u32 wqe_misc = 0; | |
223 | u32 qsize; | |
224 | ||
225 | if (nesqp->ibqp_state > IB_QPS_RTS) | |
226 | return -EINVAL; | |
227 | ||
5880ff19 | 228 | spin_lock_irqsave(&nesqp->lock, flags); |
3c2d774c GS |
229 | |
230 | head = nesqp->hwqp.sq_head; | |
231 | qsize = nesqp->hwqp.sq_tail; | |
232 | ||
233 | /* Check for SQ overflow */ | |
234 | if (((head + (2 * qsize) - nesqp->hwqp.sq_tail) % qsize) == (qsize - 1)) { | |
5880ff19 | 235 | spin_unlock_irqrestore(&nesqp->lock, flags); |
831d06cf | 236 | return -ENOMEM; |
3c2d774c GS |
237 | } |
238 | ||
239 | wqe = &nesqp->hwqp.sq_vbase[head]; | |
240 | /* nes_debug(NES_DBG_MR, "processing sq wqe at %p, head = %u.\n", wqe, head); */ | |
241 | nes_fill_init_qp_wqe(wqe, nesqp, head); | |
242 | u64temp = ibmw_bind->wr_id; | |
243 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, u64temp); | |
244 | wqe_misc = NES_IWARP_SQ_OP_BIND; | |
245 | ||
246 | wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE; | |
247 | ||
248 | if (ibmw_bind->send_flags & IB_SEND_SIGNALED) | |
249 | wqe_misc |= NES_IWARP_SQ_WQE_SIGNALED_COMPL; | |
250 | ||
7083e42e | 251 | if (ibmw_bind->bind_info.mw_access_flags & IB_ACCESS_REMOTE_WRITE) |
3c2d774c | 252 | wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE; |
7083e42e | 253 | if (ibmw_bind->bind_info.mw_access_flags & IB_ACCESS_REMOTE_READ) |
3c2d774c | 254 | wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_READ; |
3c2d774c GS |
255 | |
256 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_MISC_IDX, wqe_misc); | |
7083e42e SM |
257 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MR_IDX, |
258 | ibmw_bind->bind_info.mr->lkey); | |
3c2d774c GS |
259 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MW_IDX, ibmw->rkey); |
260 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_LENGTH_LOW_IDX, | |
7083e42e | 261 | ibmw_bind->bind_info.length); |
3c2d774c | 262 | wqe->wqe_words[NES_IWARP_SQ_BIND_WQE_LENGTH_HIGH_IDX] = 0; |
7083e42e | 263 | u64temp = (u64)ibmw_bind->bind_info.addr; |
3c2d774c GS |
264 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_VA_FBO_LOW_IDX, u64temp); |
265 | ||
266 | head++; | |
267 | if (head >= qsize) | |
268 | head = 0; | |
269 | ||
270 | nesqp->hwqp.sq_head = head; | |
271 | barrier(); | |
272 | ||
273 | nes_write32(nesdev->regs+NES_WQE_ALLOC, | |
274 | (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id); | |
275 | ||
5880ff19 | 276 | spin_unlock_irqrestore(&nesqp->lock, flags); |
3c2d774c GS |
277 | |
278 | return 0; | |
279 | } | |
280 | ||
281 | ||
e293a26f CT |
282 | /* |
283 | * nes_alloc_fast_mr | |
3c2d774c | 284 | */ |
e293a26f CT |
285 | static int alloc_fast_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd, |
286 | u32 stag, u32 page_count) | |
3c2d774c | 287 | { |
3c2d774c | 288 | struct nes_hw_cqp_wqe *cqp_wqe; |
e293a26f CT |
289 | struct nes_cqp_request *cqp_request; |
290 | unsigned long flags; | |
3c2d774c | 291 | int ret; |
e293a26f | 292 | struct nes_adapter *nesadapter = nesdev->nesadapter; |
3c2d774c | 293 | u32 opcode = 0; |
e293a26f CT |
294 | u16 major_code; |
295 | u64 region_length = page_count * PAGE_SIZE; | |
3c2d774c | 296 | |
3c2d774c | 297 | |
3c2d774c GS |
298 | cqp_request = nes_get_cqp_request(nesdev); |
299 | if (cqp_request == NULL) { | |
300 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | |
e293a26f | 301 | return -ENOMEM; |
3c2d774c | 302 | } |
e293a26f CT |
303 | nes_debug(NES_DBG_MR, "alloc_fast_reg_mr: page_count = %d, " |
304 | "region_length = %llu\n", | |
305 | page_count, region_length); | |
3c2d774c GS |
306 | cqp_request->waiting = 1; |
307 | cqp_wqe = &cqp_request->cqp_wqe; | |
308 | ||
e293a26f CT |
309 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); |
310 | if (nesadapter->free_4kpbl > 0) { | |
311 | nesadapter->free_4kpbl--; | |
312 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
313 | } else { | |
314 | /* No 4kpbl's available: */ | |
315 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
316 | nes_debug(NES_DBG_MR, "Out of Pbls\n"); | |
317 | nes_free_cqp_request(nesdev, cqp_request); | |
318 | return -ENOMEM; | |
3c2d774c GS |
319 | } |
320 | ||
e293a26f CT |
321 | opcode = NES_CQP_ALLOCATE_STAG | NES_CQP_STAG_MR | |
322 | NES_CQP_STAG_PBL_BLK_SIZE | NES_CQP_STAG_VA_TO | | |
323 | NES_CQP_STAG_REM_ACC_EN; | |
324 | /* | |
325 | * The current OFED API does not support the zero based TO option. | |
326 | * If added then need to changed the NES_CQP_STAG_VA* option. Also, | |
327 | * the API does not support that ability to have the MR set for local | |
328 | * access only when created and not allow the SQ op to override. Given | |
329 | * this the remote enable must be set here. | |
330 | */ | |
3c2d774c GS |
331 | |
332 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
333 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | |
e293a26f | 334 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX, 1); |
3c2d774c | 335 | |
e293a26f CT |
336 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] = |
337 | cpu_to_le32((u32)(region_length >> 8) & 0xff000000); | |
338 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] |= | |
339 | cpu_to_le32(nespd->pd_id & 0x00007fff); | |
340 | ||
341 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag); | |
342 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_VA_LOW_IDX, 0); | |
343 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_LOW_IDX, 0); | |
344 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, 0); | |
345 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_LEN_IDX, (page_count * 8)); | |
346 | cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(NES_CQP_STAG_PBL_BLK_SIZE); | |
347 | barrier(); | |
3c2d774c GS |
348 | |
349 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 350 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
351 | |
352 | /* Wait for CQP */ | |
e293a26f CT |
353 | ret = wait_event_timeout(cqp_request->waitq, |
354 | (0 != cqp_request->request_done), | |
355 | NES_EVENT_TIMEOUT); | |
356 | ||
357 | nes_debug(NES_DBG_MR, "Allocate STag 0x%08X completed, " | |
358 | "wait_event_timeout ret = %u, CQP Major:Minor codes = " | |
359 | "0x%04X:0x%04X.\n", stag, ret, cqp_request->major_code, | |
360 | cqp_request->minor_code); | |
361 | major_code = cqp_request->major_code; | |
1ff66e8c | 362 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c | 363 | |
e293a26f | 364 | if (!ret || major_code) { |
35c6d694 | 365 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); |
e293a26f | 366 | nesadapter->free_4kpbl++; |
35c6d694 CT |
367 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); |
368 | } | |
369 | ||
e293a26f CT |
370 | if (!ret) |
371 | return -ETIME; | |
372 | else if (major_code) | |
373 | return -EIO; | |
374 | return 0; | |
3c2d774c GS |
375 | } |
376 | ||
e293a26f CT |
377 | /* |
378 | * nes_alloc_fast_reg_mr | |
3c2d774c | 379 | */ |
53978b46 | 380 | static struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list_len) |
3c2d774c | 381 | { |
e293a26f CT |
382 | struct nes_pd *nespd = to_nespd(ibpd); |
383 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | |
3c2d774c | 384 | struct nes_device *nesdev = nesvnic->nesdev; |
35c6d694 | 385 | struct nes_adapter *nesadapter = nesdev->nesadapter; |
3c2d774c | 386 | |
e293a26f CT |
387 | u32 next_stag_index; |
388 | u8 stag_key = 0; | |
389 | u32 driver_key = 0; | |
390 | int err = 0; | |
391 | u32 stag_index = 0; | |
392 | struct nes_mr *nesmr; | |
393 | u32 stag; | |
394 | int ret; | |
395 | struct ib_mr *ibmr; | |
396 | /* | |
397 | * Note: Set to always use a fixed length single page entry PBL. This is to allow | |
398 | * for the fast_reg_mr operation to always know the size of the PBL. | |
399 | */ | |
400 | if (max_page_list_len > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64))) | |
401 | return ERR_PTR(-E2BIG); | |
35c6d694 | 402 | |
e293a26f CT |
403 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); |
404 | stag_key = (u8)next_stag_index; | |
405 | next_stag_index >>= 8; | |
406 | next_stag_index %= nesadapter->max_mr; | |
dae5d13a | 407 | |
e293a26f CT |
408 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, |
409 | nesadapter->max_mr, &stag_index, | |
81821644 | 410 | &next_stag_index, NES_RESOURCE_FAST_MR); |
e293a26f CT |
411 | if (err) |
412 | return ERR_PTR(err); | |
413 | ||
414 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | |
415 | if (!nesmr) { | |
416 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
417 | return ERR_PTR(-ENOMEM); | |
35c6d694 | 418 | } |
3c2d774c | 419 | |
e293a26f CT |
420 | stag = stag_index << 8; |
421 | stag |= driver_key; | |
422 | stag += (u32)stag_key; | |
3c2d774c | 423 | |
e293a26f CT |
424 | nes_debug(NES_DBG_MR, "Allocating STag 0x%08X index = 0x%08X\n", |
425 | stag, stag_index); | |
3c2d774c | 426 | |
e293a26f CT |
427 | ret = alloc_fast_reg_mr(nesdev, nespd, stag, max_page_list_len); |
428 | ||
429 | if (ret == 0) { | |
430 | nesmr->ibmr.rkey = stag; | |
431 | nesmr->ibmr.lkey = stag; | |
432 | nesmr->mode = IWNES_MEMREG_TYPE_FMEM; | |
433 | ibmr = &nesmr->ibmr; | |
434 | } else { | |
435 | kfree(nesmr); | |
436 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
437 | ibmr = ERR_PTR(-ENOMEM); | |
438 | } | |
439 | return ibmr; | |
440 | } | |
441 | ||
442 | /* | |
443 | * nes_alloc_fast_reg_page_list | |
3c2d774c | 444 | */ |
e293a26f CT |
445 | static struct ib_fast_reg_page_list *nes_alloc_fast_reg_page_list( |
446 | struct ib_device *ibdev, | |
447 | int page_list_len) | |
3c2d774c | 448 | { |
e293a26f CT |
449 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); |
450 | struct nes_device *nesdev = nesvnic->nesdev; | |
451 | struct ib_fast_reg_page_list *pifrpl; | |
452 | struct nes_ib_fast_reg_page_list *pnesfrpl; | |
3c2d774c | 453 | |
e293a26f CT |
454 | if (page_list_len > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64))) |
455 | return ERR_PTR(-E2BIG); | |
456 | /* | |
457 | * Allocate the ib_fast_reg_page_list structure, the | |
458 | * nes_fast_bpl structure, and the PLB table. | |
459 | */ | |
460 | pnesfrpl = kmalloc(sizeof(struct nes_ib_fast_reg_page_list) + | |
461 | page_list_len * sizeof(u64), GFP_KERNEL); | |
462 | ||
463 | if (!pnesfrpl) | |
464 | return ERR_PTR(-ENOMEM); | |
3c2d774c | 465 | |
e293a26f CT |
466 | pifrpl = &pnesfrpl->ibfrpl; |
467 | pifrpl->page_list = &pnesfrpl->pbl; | |
468 | pifrpl->max_page_list_len = page_list_len; | |
469 | /* | |
470 | * Allocate the WQE PBL | |
471 | */ | |
472 | pnesfrpl->nes_wqe_pbl.kva = pci_alloc_consistent(nesdev->pcidev, | |
473 | page_list_len * sizeof(u64), | |
474 | &pnesfrpl->nes_wqe_pbl.paddr); | |
475 | ||
476 | if (!pnesfrpl->nes_wqe_pbl.kva) { | |
477 | kfree(pnesfrpl); | |
478 | return ERR_PTR(-ENOMEM); | |
479 | } | |
480 | nes_debug(NES_DBG_MR, "nes_alloc_fast_reg_pbl: nes_frpl = %p, " | |
481 | "ibfrpl = %p, ibfrpl.page_list = %p, pbl.kva = %p, " | |
183ae74b | 482 | "pbl.paddr = %llx\n", pnesfrpl, &pnesfrpl->ibfrpl, |
e293a26f | 483 | pnesfrpl->ibfrpl.page_list, pnesfrpl->nes_wqe_pbl.kva, |
183ae74b | 484 | (unsigned long long) pnesfrpl->nes_wqe_pbl.paddr); |
e293a26f CT |
485 | |
486 | return pifrpl; | |
487 | } | |
488 | ||
489 | /* | |
490 | * nes_free_fast_reg_page_list | |
3c2d774c | 491 | */ |
e293a26f | 492 | static void nes_free_fast_reg_page_list(struct ib_fast_reg_page_list *pifrpl) |
3c2d774c | 493 | { |
e293a26f CT |
494 | struct nes_vnic *nesvnic = to_nesvnic(pifrpl->device); |
495 | struct nes_device *nesdev = nesvnic->nesdev; | |
496 | struct nes_ib_fast_reg_page_list *pnesfrpl; | |
497 | ||
498 | pnesfrpl = container_of(pifrpl, struct nes_ib_fast_reg_page_list, ibfrpl); | |
499 | /* | |
500 | * Free the WQE PBL. | |
501 | */ | |
502 | pci_free_consistent(nesdev->pcidev, | |
503 | pifrpl->max_page_list_len * sizeof(u64), | |
504 | pnesfrpl->nes_wqe_pbl.kva, | |
505 | pnesfrpl->nes_wqe_pbl.paddr); | |
506 | /* | |
507 | * Free the PBL structure | |
508 | */ | |
509 | kfree(pnesfrpl); | |
3c2d774c GS |
510 | } |
511 | ||
3c2d774c GS |
512 | /** |
513 | * nes_query_device | |
514 | */ | |
515 | static int nes_query_device(struct ib_device *ibdev, struct ib_device_attr *props) | |
516 | { | |
517 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | |
518 | struct nes_device *nesdev = nesvnic->nesdev; | |
519 | struct nes_ib_device *nesibdev = nesvnic->nesibdev; | |
520 | ||
521 | memset(props, 0, sizeof(*props)); | |
522 | memcpy(&props->sys_image_guid, nesvnic->netdev->dev_addr, 6); | |
523 | ||
ff0380ce | 524 | props->fw_ver = nesdev->nesadapter->firmware_version; |
3c2d774c GS |
525 | props->device_cap_flags = nesdev->nesadapter->device_cap_flags; |
526 | props->vendor_id = nesdev->nesadapter->vendor_id; | |
527 | props->vendor_part_id = nesdev->nesadapter->vendor_part_id; | |
528 | props->hw_ver = nesdev->nesadapter->hw_rev; | |
529 | props->max_mr_size = 0x80000000; | |
530 | props->max_qp = nesibdev->max_qp; | |
531 | props->max_qp_wr = nesdev->nesadapter->max_qp_wr - 2; | |
532 | props->max_sge = nesdev->nesadapter->max_sge; | |
533 | props->max_cq = nesibdev->max_cq; | |
5924aea6 | 534 | props->max_cqe = nesdev->nesadapter->max_cqe; |
3c2d774c GS |
535 | props->max_mr = nesibdev->max_mr; |
536 | props->max_mw = nesibdev->max_mr; | |
537 | props->max_pd = nesibdev->max_pd; | |
538 | props->max_sge_rd = 1; | |
539 | switch (nesdev->nesadapter->max_irrq_wr) { | |
540 | case 0: | |
8ac7f6e1 | 541 | props->max_qp_rd_atom = 2; |
3c2d774c GS |
542 | break; |
543 | case 1: | |
8ac7f6e1 | 544 | props->max_qp_rd_atom = 8; |
3c2d774c GS |
545 | break; |
546 | case 2: | |
8ac7f6e1 | 547 | props->max_qp_rd_atom = 32; |
3c2d774c GS |
548 | break; |
549 | case 3: | |
8ac7f6e1 | 550 | props->max_qp_rd_atom = 64; |
3c2d774c GS |
551 | break; |
552 | default: | |
553 | props->max_qp_rd_atom = 0; | |
554 | } | |
66388d67 | 555 | props->max_qp_init_rd_atom = props->max_qp_rd_atom; |
3c2d774c GS |
556 | props->atomic_cap = IB_ATOMIC_NONE; |
557 | props->max_map_per_fmr = 1; | |
558 | ||
559 | return 0; | |
560 | } | |
561 | ||
562 | ||
563 | /** | |
564 | * nes_query_port | |
565 | */ | |
566 | static int nes_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props) | |
567 | { | |
cd1d3f7a CT |
568 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); |
569 | struct net_device *netdev = nesvnic->netdev; | |
570 | ||
3c2d774c GS |
571 | memset(props, 0, sizeof(*props)); |
572 | ||
cd1d3f7a CT |
573 | props->max_mtu = IB_MTU_4096; |
574 | ||
575 | if (netdev->mtu >= 4096) | |
576 | props->active_mtu = IB_MTU_4096; | |
577 | else if (netdev->mtu >= 2048) | |
578 | props->active_mtu = IB_MTU_2048; | |
579 | else if (netdev->mtu >= 1024) | |
580 | props->active_mtu = IB_MTU_1024; | |
581 | else if (netdev->mtu >= 512) | |
582 | props->active_mtu = IB_MTU_512; | |
583 | else | |
584 | props->active_mtu = IB_MTU_256; | |
585 | ||
3c2d774c GS |
586 | props->lid = 1; |
587 | props->lmc = 0; | |
588 | props->sm_lid = 0; | |
589 | props->sm_sl = 0; | |
29327721 CT |
590 | if (netif_queue_stopped(netdev)) |
591 | props->state = IB_PORT_DOWN; | |
592 | else if (nesvnic->linkup) | |
cd1d3f7a CT |
593 | props->state = IB_PORT_ACTIVE; |
594 | else | |
595 | props->state = IB_PORT_DOWN; | |
3c2d774c GS |
596 | props->phys_state = 0; |
597 | props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_REINIT_SUP | | |
598 | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; | |
599 | props->gid_tbl_len = 1; | |
600 | props->pkey_tbl_len = 1; | |
601 | props->qkey_viol_cntr = 0; | |
602 | props->active_width = IB_WIDTH_4X; | |
2e96691c | 603 | props->active_speed = IB_SPEED_SDR; |
3c2d774c GS |
604 | props->max_msg_sz = 0x80000000; |
605 | ||
606 | return 0; | |
607 | } | |
608 | ||
609 | ||
3c2d774c GS |
610 | /** |
611 | * nes_query_pkey | |
612 | */ | |
613 | static int nes_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) | |
614 | { | |
615 | *pkey = 0; | |
616 | return 0; | |
617 | } | |
618 | ||
619 | ||
620 | /** | |
621 | * nes_query_gid | |
622 | */ | |
623 | static int nes_query_gid(struct ib_device *ibdev, u8 port, | |
624 | int index, union ib_gid *gid) | |
625 | { | |
626 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | |
627 | ||
628 | memset(&(gid->raw[0]), 0, sizeof(gid->raw)); | |
629 | memcpy(&(gid->raw[0]), nesvnic->netdev->dev_addr, 6); | |
630 | ||
631 | return 0; | |
632 | } | |
633 | ||
634 | ||
635 | /** | |
636 | * nes_alloc_ucontext - Allocate the user context data structure. This keeps track | |
637 | * of all objects associated with a particular user-mode client. | |
638 | */ | |
639 | static struct ib_ucontext *nes_alloc_ucontext(struct ib_device *ibdev, | |
640 | struct ib_udata *udata) | |
641 | { | |
642 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | |
643 | struct nes_device *nesdev = nesvnic->nesdev; | |
644 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
645 | struct nes_alloc_ucontext_req req; | |
646 | struct nes_alloc_ucontext_resp uresp; | |
647 | struct nes_ucontext *nes_ucontext; | |
648 | struct nes_ib_device *nesibdev = nesvnic->nesibdev; | |
649 | ||
650 | ||
651 | if (ib_copy_from_udata(&req, udata, sizeof(struct nes_alloc_ucontext_req))) { | |
652 | printk(KERN_ERR PFX "Invalid structure size on allocate user context.\n"); | |
653 | return ERR_PTR(-EINVAL); | |
654 | } | |
655 | ||
656 | if (req.userspace_ver != NES_ABI_USERSPACE_VER) { | |
657 | printk(KERN_ERR PFX "Invalid userspace driver version detected. Detected version %d, should be %d\n", | |
658 | req.userspace_ver, NES_ABI_USERSPACE_VER); | |
659 | return ERR_PTR(-EINVAL); | |
660 | } | |
661 | ||
662 | ||
663 | memset(&uresp, 0, sizeof uresp); | |
664 | ||
665 | uresp.max_qps = nesibdev->max_qp; | |
666 | uresp.max_pds = nesibdev->max_pd; | |
667 | uresp.wq_size = nesdev->nesadapter->max_qp_wr * 2; | |
668 | uresp.virtwq = nesadapter->virtwq; | |
669 | uresp.kernel_ver = NES_ABI_KERNEL_VER; | |
670 | ||
671 | nes_ucontext = kzalloc(sizeof *nes_ucontext, GFP_KERNEL); | |
672 | if (!nes_ucontext) | |
673 | return ERR_PTR(-ENOMEM); | |
674 | ||
675 | nes_ucontext->nesdev = nesdev; | |
676 | nes_ucontext->mmap_wq_offset = uresp.max_pds; | |
677 | nes_ucontext->mmap_cq_offset = nes_ucontext->mmap_wq_offset + | |
678 | ((sizeof(struct nes_hw_qp_wqe) * uresp.max_qps * 2) + PAGE_SIZE-1) / | |
679 | PAGE_SIZE; | |
680 | ||
681 | ||
682 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { | |
683 | kfree(nes_ucontext); | |
684 | return ERR_PTR(-EFAULT); | |
685 | } | |
686 | ||
687 | INIT_LIST_HEAD(&nes_ucontext->cq_reg_mem_list); | |
688 | INIT_LIST_HEAD(&nes_ucontext->qp_reg_mem_list); | |
689 | atomic_set(&nes_ucontext->usecnt, 1); | |
690 | return &nes_ucontext->ibucontext; | |
691 | } | |
692 | ||
693 | ||
694 | /** | |
695 | * nes_dealloc_ucontext | |
696 | */ | |
697 | static int nes_dealloc_ucontext(struct ib_ucontext *context) | |
698 | { | |
699 | /* struct nes_vnic *nesvnic = to_nesvnic(context->device); */ | |
700 | /* struct nes_device *nesdev = nesvnic->nesdev; */ | |
701 | struct nes_ucontext *nes_ucontext = to_nesucontext(context); | |
702 | ||
703 | if (!atomic_dec_and_test(&nes_ucontext->usecnt)) | |
704 | return 0; | |
705 | kfree(nes_ucontext); | |
706 | return 0; | |
707 | } | |
708 | ||
709 | ||
710 | /** | |
711 | * nes_mmap | |
712 | */ | |
713 | static int nes_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
714 | { | |
715 | unsigned long index; | |
716 | struct nes_vnic *nesvnic = to_nesvnic(context->device); | |
717 | struct nes_device *nesdev = nesvnic->nesdev; | |
718 | /* struct nes_adapter *nesadapter = nesdev->nesadapter; */ | |
719 | struct nes_ucontext *nes_ucontext; | |
720 | struct nes_qp *nesqp; | |
721 | ||
722 | nes_ucontext = to_nesucontext(context); | |
723 | ||
724 | ||
725 | if (vma->vm_pgoff >= nes_ucontext->mmap_wq_offset) { | |
726 | index = (vma->vm_pgoff - nes_ucontext->mmap_wq_offset) * PAGE_SIZE; | |
727 | index /= ((sizeof(struct nes_hw_qp_wqe) * nesdev->nesadapter->max_qp_wr * 2) + | |
728 | PAGE_SIZE-1) & (~(PAGE_SIZE-1)); | |
729 | if (!test_bit(index, nes_ucontext->allocated_wqs)) { | |
730 | nes_debug(NES_DBG_MMAP, "wq %lu not allocated\n", index); | |
731 | return -EFAULT; | |
732 | } | |
733 | nesqp = nes_ucontext->mmap_nesqp[index]; | |
734 | if (nesqp == NULL) { | |
735 | nes_debug(NES_DBG_MMAP, "wq %lu has a NULL QP base.\n", index); | |
736 | return -EFAULT; | |
737 | } | |
738 | if (remap_pfn_range(vma, vma->vm_start, | |
739 | virt_to_phys(nesqp->hwqp.sq_vbase) >> PAGE_SHIFT, | |
740 | vma->vm_end - vma->vm_start, | |
741 | vma->vm_page_prot)) { | |
742 | nes_debug(NES_DBG_MMAP, "remap_pfn_range failed.\n"); | |
743 | return -EAGAIN; | |
744 | } | |
745 | vma->vm_private_data = nesqp; | |
746 | return 0; | |
747 | } else { | |
748 | index = vma->vm_pgoff; | |
749 | if (!test_bit(index, nes_ucontext->allocated_doorbells)) | |
750 | return -EFAULT; | |
751 | ||
752 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
753 | if (io_remap_pfn_range(vma, vma->vm_start, | |
754 | (nesdev->doorbell_start + | |
755 | ((nes_ucontext->mmap_db_index[index] - nesdev->base_doorbell_index) * 4096)) | |
756 | >> PAGE_SHIFT, PAGE_SIZE, vma->vm_page_prot)) | |
757 | return -EAGAIN; | |
758 | vma->vm_private_data = nes_ucontext; | |
759 | return 0; | |
760 | } | |
761 | ||
762 | return -ENOSYS; | |
763 | } | |
764 | ||
765 | ||
766 | /** | |
767 | * nes_alloc_pd | |
768 | */ | |
769 | static struct ib_pd *nes_alloc_pd(struct ib_device *ibdev, | |
770 | struct ib_ucontext *context, struct ib_udata *udata) | |
771 | { | |
772 | struct nes_pd *nespd; | |
773 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | |
774 | struct nes_device *nesdev = nesvnic->nesdev; | |
775 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
776 | struct nes_ucontext *nesucontext; | |
777 | struct nes_alloc_pd_resp uresp; | |
778 | u32 pd_num = 0; | |
779 | int err; | |
780 | ||
781 | nes_debug(NES_DBG_PD, "nesvnic=%p, netdev=%p %s, ibdev=%p, context=%p, netdev refcnt=%u\n", | |
782 | nesvnic, nesdev->netdev[0], nesdev->netdev[0]->name, ibdev, context, | |
29b4433d | 783 | netdev_refcnt_read(nesvnic->netdev)); |
3c2d774c GS |
784 | |
785 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_pds, | |
81821644 | 786 | nesadapter->max_pd, &pd_num, &nesadapter->next_pd, NES_RESOURCE_PD); |
3c2d774c GS |
787 | if (err) { |
788 | return ERR_PTR(err); | |
789 | } | |
790 | ||
791 | nespd = kzalloc(sizeof (struct nes_pd), GFP_KERNEL); | |
792 | if (!nespd) { | |
793 | nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num); | |
794 | return ERR_PTR(-ENOMEM); | |
795 | } | |
796 | ||
797 | nes_debug(NES_DBG_PD, "Allocating PD (%p) for ib device %s\n", | |
798 | nespd, nesvnic->nesibdev->ibdev.name); | |
799 | ||
800 | nespd->pd_id = (pd_num << (PAGE_SHIFT-12)) + nesadapter->base_pd; | |
801 | ||
802 | if (context) { | |
803 | nesucontext = to_nesucontext(context); | |
804 | nespd->mmap_db_index = find_next_zero_bit(nesucontext->allocated_doorbells, | |
805 | NES_MAX_USER_DB_REGIONS, nesucontext->first_free_db); | |
806 | nes_debug(NES_DBG_PD, "find_first_zero_biton doorbells returned %u, mapping pd_id %u.\n", | |
807 | nespd->mmap_db_index, nespd->pd_id); | |
65b07ec2 | 808 | if (nespd->mmap_db_index >= NES_MAX_USER_DB_REGIONS) { |
3c2d774c GS |
809 | nes_debug(NES_DBG_PD, "mmap_db_index > MAX\n"); |
810 | nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num); | |
811 | kfree(nespd); | |
812 | return ERR_PTR(-ENOMEM); | |
813 | } | |
814 | ||
815 | uresp.pd_id = nespd->pd_id; | |
816 | uresp.mmap_db_index = nespd->mmap_db_index; | |
817 | if (ib_copy_to_udata(udata, &uresp, sizeof (struct nes_alloc_pd_resp))) { | |
818 | nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num); | |
819 | kfree(nespd); | |
820 | return ERR_PTR(-EFAULT); | |
821 | } | |
822 | ||
823 | set_bit(nespd->mmap_db_index, nesucontext->allocated_doorbells); | |
824 | nesucontext->mmap_db_index[nespd->mmap_db_index] = nespd->pd_id; | |
825 | nesucontext->first_free_db = nespd->mmap_db_index + 1; | |
826 | } | |
827 | ||
828 | nes_debug(NES_DBG_PD, "PD%u structure located @%p.\n", nespd->pd_id, nespd); | |
829 | return &nespd->ibpd; | |
830 | } | |
831 | ||
832 | ||
833 | /** | |
834 | * nes_dealloc_pd | |
835 | */ | |
836 | static int nes_dealloc_pd(struct ib_pd *ibpd) | |
837 | { | |
838 | struct nes_ucontext *nesucontext; | |
839 | struct nes_pd *nespd = to_nespd(ibpd); | |
840 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | |
841 | struct nes_device *nesdev = nesvnic->nesdev; | |
842 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
843 | ||
844 | if ((ibpd->uobject) && (ibpd->uobject->context)) { | |
845 | nesucontext = to_nesucontext(ibpd->uobject->context); | |
846 | nes_debug(NES_DBG_PD, "Clearing bit %u from allocated doorbells\n", | |
847 | nespd->mmap_db_index); | |
848 | clear_bit(nespd->mmap_db_index, nesucontext->allocated_doorbells); | |
849 | nesucontext->mmap_db_index[nespd->mmap_db_index] = 0; | |
850 | if (nesucontext->first_free_db > nespd->mmap_db_index) { | |
851 | nesucontext->first_free_db = nespd->mmap_db_index; | |
852 | } | |
853 | } | |
854 | ||
855 | nes_debug(NES_DBG_PD, "Deallocating PD%u structure located @%p.\n", | |
856 | nespd->pd_id, nespd); | |
857 | nes_free_resource(nesadapter, nesadapter->allocated_pds, | |
858 | (nespd->pd_id-nesadapter->base_pd)>>(PAGE_SHIFT-12)); | |
859 | kfree(nespd); | |
860 | ||
861 | return 0; | |
862 | } | |
863 | ||
864 | ||
865 | /** | |
866 | * nes_create_ah | |
867 | */ | |
868 | static struct ib_ah *nes_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) | |
869 | { | |
870 | return ERR_PTR(-ENOSYS); | |
871 | } | |
872 | ||
873 | ||
874 | /** | |
875 | * nes_destroy_ah | |
876 | */ | |
877 | static int nes_destroy_ah(struct ib_ah *ah) | |
878 | { | |
879 | return -ENOSYS; | |
880 | } | |
881 | ||
882 | ||
883 | /** | |
884 | * nes_get_encoded_size | |
885 | */ | |
886 | static inline u8 nes_get_encoded_size(int *size) | |
887 | { | |
888 | u8 encoded_size = 0; | |
889 | if (*size <= 32) { | |
890 | *size = 32; | |
891 | encoded_size = 1; | |
892 | } else if (*size <= 128) { | |
893 | *size = 128; | |
894 | encoded_size = 2; | |
895 | } else if (*size <= 512) { | |
896 | *size = 512; | |
897 | encoded_size = 3; | |
898 | } | |
899 | return (encoded_size); | |
900 | } | |
901 | ||
902 | ||
903 | ||
904 | /** | |
905 | * nes_setup_virt_qp | |
906 | */ | |
907 | static int nes_setup_virt_qp(struct nes_qp *nesqp, struct nes_pbl *nespbl, | |
908 | struct nes_vnic *nesvnic, int sq_size, int rq_size) | |
909 | { | |
910 | unsigned long flags; | |
911 | void *mem; | |
912 | __le64 *pbl = NULL; | |
913 | __le64 *tpbl; | |
914 | __le64 *pblbuffer; | |
915 | struct nes_device *nesdev = nesvnic->nesdev; | |
916 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
917 | u32 pbl_entries; | |
918 | u8 rq_pbl_entries; | |
919 | u8 sq_pbl_entries; | |
920 | ||
921 | pbl_entries = nespbl->pbl_size >> 3; | |
71e0957c | 922 | nes_debug(NES_DBG_QP, "Userspace PBL, pbl_size=%u, pbl_entries = %d pbl_vbase=%p, pbl_pbase=%lx\n", |
3c2d774c GS |
923 | nespbl->pbl_size, pbl_entries, |
924 | (void *)nespbl->pbl_vbase, | |
71e0957c | 925 | (unsigned long) nespbl->pbl_pbase); |
3c2d774c GS |
926 | pbl = (__le64 *) nespbl->pbl_vbase; /* points to first pbl entry */ |
927 | /* now lets set the sq_vbase as well as rq_vbase addrs we will assign */ | |
928 | /* the first pbl to be fro the rq_vbase... */ | |
929 | rq_pbl_entries = (rq_size * sizeof(struct nes_hw_qp_wqe)) >> 12; | |
930 | sq_pbl_entries = (sq_size * sizeof(struct nes_hw_qp_wqe)) >> 12; | |
931 | nesqp->hwqp.sq_pbase = (le32_to_cpu(((__le32 *)pbl)[0])) | ((u64)((le32_to_cpu(((__le32 *)pbl)[1]))) << 32); | |
932 | if (!nespbl->page) { | |
933 | nes_debug(NES_DBG_QP, "QP nespbl->page is NULL \n"); | |
934 | kfree(nespbl); | |
935 | return -ENOMEM; | |
936 | } | |
937 | ||
938 | nesqp->hwqp.sq_vbase = kmap(nespbl->page); | |
939 | nesqp->page = nespbl->page; | |
940 | if (!nesqp->hwqp.sq_vbase) { | |
941 | nes_debug(NES_DBG_QP, "QP sq_vbase kmap failed\n"); | |
942 | kfree(nespbl); | |
943 | return -ENOMEM; | |
944 | } | |
945 | ||
946 | /* Now to get to sq.. we need to calculate how many */ | |
947 | /* PBL entries were used by the rq.. */ | |
948 | pbl += sq_pbl_entries; | |
949 | nesqp->hwqp.rq_pbase = (le32_to_cpu(((__le32 *)pbl)[0])) | ((u64)((le32_to_cpu(((__le32 *)pbl)[1]))) << 32); | |
950 | /* nesqp->hwqp.rq_vbase = bus_to_virt(*pbl); */ | |
951 | /*nesqp->hwqp.rq_vbase = phys_to_virt(*pbl); */ | |
952 | ||
71e0957c RD |
953 | nes_debug(NES_DBG_QP, "QP sq_vbase= %p sq_pbase=%lx rq_vbase=%p rq_pbase=%lx\n", |
954 | nesqp->hwqp.sq_vbase, (unsigned long) nesqp->hwqp.sq_pbase, | |
955 | nesqp->hwqp.rq_vbase, (unsigned long) nesqp->hwqp.rq_pbase); | |
3c2d774c GS |
956 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); |
957 | if (!nesadapter->free_256pbl) { | |
958 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | |
959 | nespbl->pbl_pbase); | |
960 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
961 | kunmap(nesqp->page); | |
962 | kfree(nespbl); | |
963 | return -ENOMEM; | |
964 | } | |
965 | nesadapter->free_256pbl--; | |
966 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
967 | ||
968 | nesqp->pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 256, &nesqp->pbl_pbase); | |
969 | pblbuffer = nesqp->pbl_vbase; | |
970 | if (!nesqp->pbl_vbase) { | |
971 | /* memory allocated during nes_reg_user_mr() */ | |
972 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | |
973 | nespbl->pbl_pbase); | |
974 | kfree(nespbl); | |
975 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
976 | nesadapter->free_256pbl++; | |
977 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
978 | kunmap(nesqp->page); | |
979 | return -ENOMEM; | |
980 | } | |
981 | memset(nesqp->pbl_vbase, 0, 256); | |
982 | /* fill in the page address in the pbl buffer.. */ | |
983 | tpbl = pblbuffer + 16; | |
984 | pbl = (__le64 *)nespbl->pbl_vbase; | |
985 | while (sq_pbl_entries--) | |
986 | *tpbl++ = *pbl++; | |
987 | tpbl = pblbuffer; | |
988 | while (rq_pbl_entries--) | |
989 | *tpbl++ = *pbl++; | |
990 | ||
991 | /* done with memory allocated during nes_reg_user_mr() */ | |
992 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | |
993 | nespbl->pbl_pbase); | |
994 | kfree(nespbl); | |
995 | ||
996 | nesqp->qp_mem_size = | |
997 | max((u32)sizeof(struct nes_qp_context), ((u32)256)) + 256; /* this is Q2 */ | |
998 | /* Round up to a multiple of a page */ | |
999 | nesqp->qp_mem_size += PAGE_SIZE - 1; | |
1000 | nesqp->qp_mem_size &= ~(PAGE_SIZE - 1); | |
1001 | ||
1002 | mem = pci_alloc_consistent(nesdev->pcidev, nesqp->qp_mem_size, | |
1003 | &nesqp->hwqp.q2_pbase); | |
1004 | ||
1005 | if (!mem) { | |
1006 | pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase); | |
1007 | nesqp->pbl_vbase = NULL; | |
1008 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
1009 | nesadapter->free_256pbl++; | |
1010 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
1011 | kunmap(nesqp->page); | |
1012 | return -ENOMEM; | |
1013 | } | |
d2fa9b26 | 1014 | nesqp->sq_kmapped = 1; |
3c2d774c GS |
1015 | nesqp->hwqp.q2_vbase = mem; |
1016 | mem += 256; | |
1017 | memset(nesqp->hwqp.q2_vbase, 0, 256); | |
1018 | nesqp->nesqp_context = mem; | |
1019 | memset(nesqp->nesqp_context, 0, sizeof(*nesqp->nesqp_context)); | |
1020 | nesqp->nesqp_context_pbase = nesqp->hwqp.q2_pbase + 256; | |
1021 | ||
1022 | return 0; | |
1023 | } | |
1024 | ||
1025 | ||
1026 | /** | |
1027 | * nes_setup_mmap_qp | |
1028 | */ | |
1029 | static int nes_setup_mmap_qp(struct nes_qp *nesqp, struct nes_vnic *nesvnic, | |
1030 | int sq_size, int rq_size) | |
1031 | { | |
1032 | void *mem; | |
1033 | struct nes_device *nesdev = nesvnic->nesdev; | |
1034 | ||
1035 | nesqp->qp_mem_size = (sizeof(struct nes_hw_qp_wqe) * sq_size) + | |
1036 | (sizeof(struct nes_hw_qp_wqe) * rq_size) + | |
1037 | max((u32)sizeof(struct nes_qp_context), ((u32)256)) + | |
1038 | 256; /* this is Q2 */ | |
1039 | /* Round up to a multiple of a page */ | |
1040 | nesqp->qp_mem_size += PAGE_SIZE - 1; | |
1041 | nesqp->qp_mem_size &= ~(PAGE_SIZE - 1); | |
1042 | ||
1043 | mem = pci_alloc_consistent(nesdev->pcidev, nesqp->qp_mem_size, | |
1044 | &nesqp->hwqp.sq_pbase); | |
1045 | if (!mem) | |
1046 | return -ENOMEM; | |
1047 | nes_debug(NES_DBG_QP, "PCI consistent memory for " | |
1048 | "host descriptor rings located @ %p (pa = 0x%08lX.) size = %u.\n", | |
1049 | mem, (unsigned long)nesqp->hwqp.sq_pbase, nesqp->qp_mem_size); | |
1050 | ||
1051 | memset(mem, 0, nesqp->qp_mem_size); | |
1052 | ||
1053 | nesqp->hwqp.sq_vbase = mem; | |
1054 | mem += sizeof(struct nes_hw_qp_wqe) * sq_size; | |
1055 | ||
1056 | nesqp->hwqp.rq_vbase = mem; | |
1057 | nesqp->hwqp.rq_pbase = nesqp->hwqp.sq_pbase + | |
1058 | sizeof(struct nes_hw_qp_wqe) * sq_size; | |
1059 | mem += sizeof(struct nes_hw_qp_wqe) * rq_size; | |
1060 | ||
1061 | nesqp->hwqp.q2_vbase = mem; | |
1062 | nesqp->hwqp.q2_pbase = nesqp->hwqp.rq_pbase + | |
1063 | sizeof(struct nes_hw_qp_wqe) * rq_size; | |
1064 | mem += 256; | |
1065 | memset(nesqp->hwqp.q2_vbase, 0, 256); | |
1066 | ||
1067 | nesqp->nesqp_context = mem; | |
1068 | nesqp->nesqp_context_pbase = nesqp->hwqp.q2_pbase + 256; | |
1069 | memset(nesqp->nesqp_context, 0, sizeof(*nesqp->nesqp_context)); | |
1070 | return 0; | |
1071 | } | |
1072 | ||
1073 | ||
1074 | /** | |
1075 | * nes_free_qp_mem() is to free up the qp's pci_alloc_consistent() memory. | |
1076 | */ | |
1077 | static inline void nes_free_qp_mem(struct nes_device *nesdev, | |
1078 | struct nes_qp *nesqp, int virt_wqs) | |
1079 | { | |
1080 | unsigned long flags; | |
1081 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
1082 | if (!virt_wqs) { | |
1083 | pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, | |
1084 | nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase); | |
1085 | }else { | |
1086 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
1087 | nesadapter->free_256pbl++; | |
1088 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
1089 | pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase); | |
1090 | pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase ); | |
1091 | nesqp->pbl_vbase = NULL; | |
d2fa9b26 FL |
1092 | if (nesqp->sq_kmapped) { |
1093 | nesqp->sq_kmapped = 0; | |
1094 | kunmap(nesqp->page); | |
1095 | } | |
3c2d774c GS |
1096 | } |
1097 | } | |
1098 | ||
1099 | ||
1100 | /** | |
1101 | * nes_create_qp | |
1102 | */ | |
1103 | static struct ib_qp *nes_create_qp(struct ib_pd *ibpd, | |
1104 | struct ib_qp_init_attr *init_attr, struct ib_udata *udata) | |
1105 | { | |
1106 | u64 u64temp= 0; | |
1107 | u64 u64nesqp = 0; | |
1108 | struct nes_pd *nespd = to_nespd(ibpd); | |
1109 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | |
1110 | struct nes_device *nesdev = nesvnic->nesdev; | |
1111 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
1112 | struct nes_qp *nesqp; | |
1113 | struct nes_cq *nescq; | |
1114 | struct nes_ucontext *nes_ucontext; | |
1115 | struct nes_hw_cqp_wqe *cqp_wqe; | |
1116 | struct nes_cqp_request *cqp_request; | |
1117 | struct nes_create_qp_req req; | |
1118 | struct nes_create_qp_resp uresp; | |
1119 | struct nes_pbl *nespbl = NULL; | |
1120 | u32 qp_num = 0; | |
1121 | u32 opcode = 0; | |
1122 | /* u32 counter = 0; */ | |
1123 | void *mem; | |
1124 | unsigned long flags; | |
1125 | int ret; | |
1126 | int err; | |
1127 | int virt_wqs = 0; | |
1128 | int sq_size; | |
1129 | int rq_size; | |
1130 | u8 sq_encoded_size; | |
1131 | u8 rq_encoded_size; | |
1132 | /* int counter; */ | |
1133 | ||
b846f25a EC |
1134 | if (init_attr->create_flags) |
1135 | return ERR_PTR(-EINVAL); | |
1136 | ||
3c2d774c GS |
1137 | atomic_inc(&qps_created); |
1138 | switch (init_attr->qp_type) { | |
1139 | case IB_QPT_RC: | |
1140 | if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) { | |
1141 | init_attr->cap.max_inline_data = 0; | |
1142 | } else { | |
1143 | init_attr->cap.max_inline_data = 64; | |
1144 | } | |
1145 | sq_size = init_attr->cap.max_send_wr; | |
1146 | rq_size = init_attr->cap.max_recv_wr; | |
1147 | ||
7495ab68 | 1148 | /* check if the encoded sizes are OK or not... */ |
3c2d774c GS |
1149 | sq_encoded_size = nes_get_encoded_size(&sq_size); |
1150 | rq_encoded_size = nes_get_encoded_size(&rq_size); | |
1151 | ||
1152 | if ((!sq_encoded_size) || (!rq_encoded_size)) { | |
1153 | nes_debug(NES_DBG_QP, "ERROR bad rq (%u) or sq (%u) size\n", | |
1154 | rq_size, sq_size); | |
1155 | return ERR_PTR(-EINVAL); | |
1156 | } | |
1157 | ||
1158 | init_attr->cap.max_send_wr = sq_size -2; | |
1159 | init_attr->cap.max_recv_wr = rq_size -1; | |
1160 | nes_debug(NES_DBG_QP, "RQ size=%u, SQ Size=%u\n", rq_size, sq_size); | |
1161 | ||
1162 | ret = nes_alloc_resource(nesadapter, nesadapter->allocated_qps, | |
81821644 | 1163 | nesadapter->max_qp, &qp_num, &nesadapter->next_qp, NES_RESOURCE_QP); |
3c2d774c GS |
1164 | if (ret) { |
1165 | return ERR_PTR(ret); | |
1166 | } | |
1167 | ||
1168 | /* Need 512 (actually now 1024) byte alignment on this structure */ | |
1169 | mem = kzalloc(sizeof(*nesqp)+NES_SW_CONTEXT_ALIGN-1, GFP_KERNEL); | |
1170 | if (!mem) { | |
1171 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1172 | nes_debug(NES_DBG_QP, "Unable to allocate QP\n"); | |
1173 | return ERR_PTR(-ENOMEM); | |
1174 | } | |
1175 | u64nesqp = (unsigned long)mem; | |
1176 | u64nesqp += ((u64)NES_SW_CONTEXT_ALIGN) - 1; | |
1177 | u64temp = ((u64)NES_SW_CONTEXT_ALIGN) - 1; | |
1178 | u64nesqp &= ~u64temp; | |
1179 | nesqp = (struct nes_qp *)(unsigned long)u64nesqp; | |
1180 | /* nes_debug(NES_DBG_QP, "nesqp=%p, allocated buffer=%p. Rounded to closest %u\n", | |
1181 | nesqp, mem, NES_SW_CONTEXT_ALIGN); */ | |
1182 | nesqp->allocated_buffer = mem; | |
1183 | ||
1184 | if (udata) { | |
1185 | if (ib_copy_from_udata(&req, udata, sizeof(struct nes_create_qp_req))) { | |
1186 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1187 | kfree(nesqp->allocated_buffer); | |
1188 | nes_debug(NES_DBG_QP, "ib_copy_from_udata() Failed \n"); | |
1189 | return NULL; | |
1190 | } | |
1191 | if (req.user_wqe_buffers) { | |
1192 | virt_wqs = 1; | |
1193 | } | |
1194 | if ((ibpd->uobject) && (ibpd->uobject->context)) { | |
1195 | nesqp->user_mode = 1; | |
1196 | nes_ucontext = to_nesucontext(ibpd->uobject->context); | |
1197 | if (virt_wqs) { | |
1198 | err = 1; | |
1199 | list_for_each_entry(nespbl, &nes_ucontext->qp_reg_mem_list, list) { | |
1200 | if (nespbl->user_base == (unsigned long )req.user_wqe_buffers) { | |
1201 | list_del(&nespbl->list); | |
1202 | err = 0; | |
1203 | nes_debug(NES_DBG_QP, "Found PBL for virtual QP. nespbl=%p. user_base=0x%lx\n", | |
1204 | nespbl, nespbl->user_base); | |
1205 | break; | |
1206 | } | |
1207 | } | |
1208 | if (err) { | |
1209 | nes_debug(NES_DBG_QP, "Didn't Find PBL for virtual QP. address = %llx.\n", | |
1210 | (long long unsigned int)req.user_wqe_buffers); | |
1211 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1212 | kfree(nesqp->allocated_buffer); | |
9300c0c0 | 1213 | return ERR_PTR(-EFAULT); |
3c2d774c GS |
1214 | } |
1215 | } | |
1216 | ||
1217 | nes_ucontext = to_nesucontext(ibpd->uobject->context); | |
1218 | nesqp->mmap_sq_db_index = | |
1219 | find_next_zero_bit(nes_ucontext->allocated_wqs, | |
1220 | NES_MAX_USER_WQ_REGIONS, nes_ucontext->first_free_wq); | |
1221 | /* nes_debug(NES_DBG_QP, "find_first_zero_biton wqs returned %u\n", | |
1222 | nespd->mmap_db_index); */ | |
51af33e8 | 1223 | if (nesqp->mmap_sq_db_index >= NES_MAX_USER_WQ_REGIONS) { |
3c2d774c GS |
1224 | nes_debug(NES_DBG_QP, |
1225 | "db index > max user regions, failing create QP\n"); | |
1226 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1227 | if (virt_wqs) { | |
1228 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | |
1229 | nespbl->pbl_pbase); | |
1230 | kfree(nespbl); | |
1231 | } | |
1232 | kfree(nesqp->allocated_buffer); | |
1233 | return ERR_PTR(-ENOMEM); | |
1234 | } | |
1235 | set_bit(nesqp->mmap_sq_db_index, nes_ucontext->allocated_wqs); | |
1236 | nes_ucontext->mmap_nesqp[nesqp->mmap_sq_db_index] = nesqp; | |
1237 | nes_ucontext->first_free_wq = nesqp->mmap_sq_db_index + 1; | |
1238 | } else { | |
1239 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1240 | kfree(nesqp->allocated_buffer); | |
1241 | return ERR_PTR(-EFAULT); | |
1242 | } | |
1243 | } | |
1244 | err = (!virt_wqs) ? nes_setup_mmap_qp(nesqp, nesvnic, sq_size, rq_size) : | |
1245 | nes_setup_virt_qp(nesqp, nespbl, nesvnic, sq_size, rq_size); | |
1246 | if (err) { | |
1247 | nes_debug(NES_DBG_QP, | |
1248 | "error geting qp mem code = %d\n", err); | |
1249 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1250 | kfree(nesqp->allocated_buffer); | |
1251 | return ERR_PTR(-ENOMEM); | |
1252 | } | |
1253 | ||
1254 | nesqp->hwqp.sq_size = sq_size; | |
1255 | nesqp->hwqp.sq_encoded_size = sq_encoded_size; | |
1256 | nesqp->hwqp.sq_head = 1; | |
1257 | nesqp->hwqp.rq_size = rq_size; | |
1258 | nesqp->hwqp.rq_encoded_size = rq_encoded_size; | |
1259 | /* nes_debug(NES_DBG_QP, "nesqp->nesqp_context_pbase = %p\n", | |
1260 | (void *)nesqp->nesqp_context_pbase); | |
1261 | */ | |
1262 | nesqp->hwqp.qp_id = qp_num; | |
1263 | nesqp->ibqp.qp_num = nesqp->hwqp.qp_id; | |
1264 | nesqp->nespd = nespd; | |
1265 | ||
1266 | nescq = to_nescq(init_attr->send_cq); | |
1267 | nesqp->nesscq = nescq; | |
1268 | nescq = to_nescq(init_attr->recv_cq); | |
1269 | nesqp->nesrcq = nescq; | |
1270 | ||
1271 | nesqp->nesqp_context->misc |= cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << | |
1272 | NES_QPCONTEXT_MISC_PCI_FCN_SHIFT); | |
1273 | nesqp->nesqp_context->misc |= cpu_to_le32((u32)nesqp->hwqp.rq_encoded_size << | |
1274 | NES_QPCONTEXT_MISC_RQ_SIZE_SHIFT); | |
1275 | nesqp->nesqp_context->misc |= cpu_to_le32((u32)nesqp->hwqp.sq_encoded_size << | |
1276 | NES_QPCONTEXT_MISC_SQ_SIZE_SHIFT); | |
c12e56ef | 1277 | if (!udata) { |
3c2d774c GS |
1278 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_PRIV_EN); |
1279 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_FAST_REGISTER_EN); | |
c12e56ef | 1280 | } |
3c2d774c GS |
1281 | nesqp->nesqp_context->cqs = cpu_to_le32(nesqp->nesscq->hw_cq.cq_number + |
1282 | ((u32)nesqp->nesrcq->hw_cq.cq_number << 16)); | |
1283 | u64temp = (u64)nesqp->hwqp.sq_pbase; | |
1284 | nesqp->nesqp_context->sq_addr_low = cpu_to_le32((u32)u64temp); | |
1285 | nesqp->nesqp_context->sq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | |
1286 | ||
1287 | ||
1288 | if (!virt_wqs) { | |
1289 | u64temp = (u64)nesqp->hwqp.sq_pbase; | |
1290 | nesqp->nesqp_context->sq_addr_low = cpu_to_le32((u32)u64temp); | |
1291 | nesqp->nesqp_context->sq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | |
1292 | u64temp = (u64)nesqp->hwqp.rq_pbase; | |
1293 | nesqp->nesqp_context->rq_addr_low = cpu_to_le32((u32)u64temp); | |
1294 | nesqp->nesqp_context->rq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | |
1295 | } else { | |
1296 | u64temp = (u64)nesqp->pbl_pbase; | |
1297 | nesqp->nesqp_context->rq_addr_low = cpu_to_le32((u32)u64temp); | |
1298 | nesqp->nesqp_context->rq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | |
1299 | } | |
1300 | ||
1301 | /* nes_debug(NES_DBG_QP, "next_qp_nic_index=%u, using nic_index=%d\n", | |
1302 | nesvnic->next_qp_nic_index, | |
1303 | nesvnic->qp_nic_index[nesvnic->next_qp_nic_index]); */ | |
1304 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | |
1305 | nesqp->nesqp_context->misc2 |= cpu_to_le32( | |
1306 | (u32)nesvnic->qp_nic_index[nesvnic->next_qp_nic_index] << | |
1307 | NES_QPCONTEXT_MISC2_NIC_INDEX_SHIFT); | |
1308 | nesvnic->next_qp_nic_index++; | |
1309 | if ((nesvnic->next_qp_nic_index > 3) || | |
1310 | (nesvnic->qp_nic_index[nesvnic->next_qp_nic_index] == 0xf)) { | |
1311 | nesvnic->next_qp_nic_index = 0; | |
1312 | } | |
1313 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | |
1314 | ||
1315 | nesqp->nesqp_context->pd_index_wscale |= cpu_to_le32((u32)nesqp->nespd->pd_id << 16); | |
1316 | u64temp = (u64)nesqp->hwqp.q2_pbase; | |
1317 | nesqp->nesqp_context->q2_addr_low = cpu_to_le32((u32)u64temp); | |
1318 | nesqp->nesqp_context->q2_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | |
1319 | nesqp->nesqp_context->aeq_token_low = cpu_to_le32((u32)((unsigned long)(nesqp))); | |
1320 | nesqp->nesqp_context->aeq_token_high = cpu_to_le32((u32)(upper_32_bits((unsigned long)(nesqp)))); | |
1321 | nesqp->nesqp_context->ird_ord_sizes = cpu_to_le32(NES_QPCONTEXT_ORDIRD_ALSMM | | |
883c6992 | 1322 | NES_QPCONTEXT_ORDIRD_AAH | |
3c2d774c GS |
1323 | ((((u32)nesadapter->max_irrq_wr) << |
1324 | NES_QPCONTEXT_ORDIRD_IRDSIZE_SHIFT) & NES_QPCONTEXT_ORDIRD_IRDSIZE_MASK)); | |
1325 | if (disable_mpa_crc) { | |
1326 | nes_debug(NES_DBG_QP, "Disabling MPA crc checking due to module option.\n"); | |
1327 | nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32(NES_QPCONTEXT_ORDIRD_RNMC); | |
1328 | } | |
1329 | ||
1330 | ||
1331 | /* Create the QP */ | |
1332 | cqp_request = nes_get_cqp_request(nesdev); | |
1333 | if (cqp_request == NULL) { | |
1334 | nes_debug(NES_DBG_QP, "Failed to get a cqp_request\n"); | |
1335 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1336 | nes_free_qp_mem(nesdev, nesqp,virt_wqs); | |
1337 | kfree(nesqp->allocated_buffer); | |
1338 | return ERR_PTR(-ENOMEM); | |
1339 | } | |
1340 | cqp_request->waiting = 1; | |
1341 | cqp_wqe = &cqp_request->cqp_wqe; | |
1342 | ||
1343 | if (!virt_wqs) { | |
1344 | opcode = NES_CQP_CREATE_QP | NES_CQP_QP_TYPE_IWARP | | |
1345 | NES_CQP_QP_IWARP_STATE_IDLE; | |
1346 | } else { | |
1347 | opcode = NES_CQP_CREATE_QP | NES_CQP_QP_TYPE_IWARP | NES_CQP_QP_VIRT_WQS | | |
1348 | NES_CQP_QP_IWARP_STATE_IDLE; | |
1349 | } | |
1350 | opcode |= NES_CQP_QP_CQS_VALID; | |
1351 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
1352 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | |
1353 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id); | |
1354 | ||
1355 | u64temp = (u64)nesqp->nesqp_context_pbase; | |
1356 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp); | |
1357 | ||
1358 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 1359 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1360 | |
1361 | /* Wait for CQP */ | |
1362 | nes_debug(NES_DBG_QP, "Waiting for create iWARP QP%u to complete.\n", | |
1363 | nesqp->hwqp.qp_id); | |
1364 | ret = wait_event_timeout(cqp_request->waitq, | |
1365 | (cqp_request->request_done != 0), NES_EVENT_TIMEOUT); | |
1366 | nes_debug(NES_DBG_QP, "Create iwarp QP%u completed, wait_event_timeout ret=%u," | |
1367 | " nesdev->cqp_head = %u, nesdev->cqp.sq_tail = %u," | |
1368 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
1369 | nesqp->hwqp.qp_id, ret, nesdev->cqp.sq_head, nesdev->cqp.sq_tail, | |
1370 | cqp_request->major_code, cqp_request->minor_code); | |
1371 | if ((!ret) || (cqp_request->major_code)) { | |
1ff66e8c | 1372 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1373 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); |
1374 | nes_free_qp_mem(nesdev, nesqp,virt_wqs); | |
1375 | kfree(nesqp->allocated_buffer); | |
1376 | if (!ret) { | |
1377 | return ERR_PTR(-ETIME); | |
1378 | } else { | |
1379 | return ERR_PTR(-EIO); | |
1380 | } | |
3c2d774c GS |
1381 | } |
1382 | ||
1ff66e8c RD |
1383 | nes_put_cqp_request(nesdev, cqp_request); |
1384 | ||
3c2d774c GS |
1385 | if (ibpd->uobject) { |
1386 | uresp.mmap_sq_db_index = nesqp->mmap_sq_db_index; | |
1387 | uresp.actual_sq_size = sq_size; | |
1388 | uresp.actual_rq_size = rq_size; | |
1389 | uresp.qp_id = nesqp->hwqp.qp_id; | |
1390 | uresp.nes_drv_opt = nes_drv_opt; | |
1391 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { | |
1392 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | |
1393 | nes_free_qp_mem(nesdev, nesqp,virt_wqs); | |
1394 | kfree(nesqp->allocated_buffer); | |
1395 | return ERR_PTR(-EFAULT); | |
1396 | } | |
1397 | } | |
1398 | ||
1399 | nes_debug(NES_DBG_QP, "QP%u structure located @%p.Size = %u.\n", | |
1400 | nesqp->hwqp.qp_id, nesqp, (u32)sizeof(*nesqp)); | |
1401 | spin_lock_init(&nesqp->lock); | |
3c2d774c GS |
1402 | nes_add_ref(&nesqp->ibqp); |
1403 | break; | |
1404 | default: | |
1405 | nes_debug(NES_DBG_QP, "Invalid QP type: %d\n", init_attr->qp_type); | |
1406 | return ERR_PTR(-EINVAL); | |
3c2d774c GS |
1407 | } |
1408 | ||
d14152da | 1409 | nesqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR); |
7bfcfa51 TN |
1410 | init_timer(&nesqp->terminate_timer); |
1411 | nesqp->terminate_timer.function = nes_terminate_timeout; | |
1412 | nesqp->terminate_timer.data = (unsigned long)nesqp; | |
d14152da | 1413 | |
3c2d774c GS |
1414 | /* update the QP table */ |
1415 | nesdev->nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = nesqp; | |
1416 | nes_debug(NES_DBG_QP, "netdev refcnt=%u\n", | |
29b4433d | 1417 | netdev_refcnt_read(nesvnic->netdev)); |
3c2d774c GS |
1418 | |
1419 | return &nesqp->ibqp; | |
1420 | } | |
1421 | ||
5ee21fe0 DW |
1422 | /** |
1423 | * nes_clean_cq | |
1424 | */ | |
1425 | static void nes_clean_cq(struct nes_qp *nesqp, struct nes_cq *nescq) | |
1426 | { | |
1427 | u32 cq_head; | |
1428 | u32 lo; | |
1429 | u32 hi; | |
1430 | u64 u64temp; | |
1431 | unsigned long flags = 0; | |
1432 | ||
1433 | spin_lock_irqsave(&nescq->lock, flags); | |
1434 | ||
1435 | cq_head = nescq->hw_cq.cq_head; | |
1436 | while (le32_to_cpu(nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_VALID) { | |
1437 | rmb(); | |
1438 | lo = le32_to_cpu(nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]); | |
1439 | hi = le32_to_cpu(nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX]); | |
1440 | u64temp = (((u64)hi) << 32) | ((u64)lo); | |
1441 | u64temp &= ~(NES_SW_CONTEXT_ALIGN-1); | |
1442 | if (u64temp == (u64)(unsigned long)nesqp) { | |
1443 | /* Zero the context value so cqe will be ignored */ | |
1444 | nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX] = 0; | |
1445 | nescq->hw_cq.cq_vbase[cq_head].cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX] = 0; | |
1446 | } | |
1447 | ||
1448 | if (++cq_head >= nescq->hw_cq.cq_size) | |
1449 | cq_head = 0; | |
1450 | } | |
1451 | ||
1452 | spin_unlock_irqrestore(&nescq->lock, flags); | |
1453 | } | |
1454 | ||
1455 | ||
3c2d774c GS |
1456 | /** |
1457 | * nes_destroy_qp | |
1458 | */ | |
1459 | static int nes_destroy_qp(struct ib_qp *ibqp) | |
1460 | { | |
1461 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
3c2d774c GS |
1462 | struct nes_ucontext *nes_ucontext; |
1463 | struct ib_qp_attr attr; | |
1464 | struct iw_cm_id *cm_id; | |
1465 | struct iw_cm_event cm_event; | |
0f0bee8b | 1466 | int ret = 0; |
3c2d774c GS |
1467 | |
1468 | atomic_inc(&sw_qps_destroyed); | |
1469 | nesqp->destroyed = 1; | |
1470 | ||
1471 | /* Blow away the connection if it exists. */ | |
1472 | if (nesqp->ibqp_state >= IB_QPS_INIT && nesqp->ibqp_state <= IB_QPS_RTS) { | |
1473 | /* if (nesqp->ibqp_state == IB_QPS_RTS) { */ | |
1474 | attr.qp_state = IB_QPS_ERR; | |
1475 | nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL); | |
1476 | } | |
1477 | ||
1478 | if (((nesqp->ibqp_state == IB_QPS_INIT) || | |
1479 | (nesqp->ibqp_state == IB_QPS_RTR)) && (nesqp->cm_id)) { | |
1480 | cm_id = nesqp->cm_id; | |
1481 | cm_event.event = IW_CM_EVENT_CONNECT_REPLY; | |
d0c49bf3 | 1482 | cm_event.status = -ETIMEDOUT; |
3c2d774c GS |
1483 | cm_event.local_addr = cm_id->local_addr; |
1484 | cm_event.remote_addr = cm_id->remote_addr; | |
1485 | cm_event.private_data = NULL; | |
1486 | cm_event.private_data_len = 0; | |
1487 | ||
1488 | nes_debug(NES_DBG_QP, "Generating a CM Timeout Event for " | |
1489 | "QP%u. cm_id = %p, refcount = %u. \n", | |
1490 | nesqp->hwqp.qp_id, cm_id, atomic_read(&nesqp->refcount)); | |
1491 | ||
1492 | cm_id->rem_ref(cm_id); | |
1493 | ret = cm_id->event_handler(cm_id, &cm_event); | |
1494 | if (ret) | |
1495 | nes_debug(NES_DBG_QP, "OFA CM event_handler returned, ret=%d\n", ret); | |
1496 | } | |
1497 | ||
3c2d774c GS |
1498 | if (nesqp->user_mode) { |
1499 | if ((ibqp->uobject)&&(ibqp->uobject->context)) { | |
1500 | nes_ucontext = to_nesucontext(ibqp->uobject->context); | |
1501 | clear_bit(nesqp->mmap_sq_db_index, nes_ucontext->allocated_wqs); | |
1502 | nes_ucontext->mmap_nesqp[nesqp->mmap_sq_db_index] = NULL; | |
1503 | if (nes_ucontext->first_free_wq > nesqp->mmap_sq_db_index) { | |
1504 | nes_ucontext->first_free_wq = nesqp->mmap_sq_db_index; | |
1505 | } | |
1506 | } | |
d2fa9b26 FL |
1507 | if (nesqp->pbl_pbase && nesqp->sq_kmapped) { |
1508 | nesqp->sq_kmapped = 0; | |
3c2d774c | 1509 | kunmap(nesqp->page); |
d2fa9b26 | 1510 | } |
5ee21fe0 DW |
1511 | } else { |
1512 | /* Clean any pending completions from the cq(s) */ | |
1513 | if (nesqp->nesscq) | |
1514 | nes_clean_cq(nesqp, nesqp->nesscq); | |
1515 | ||
1516 | if ((nesqp->nesrcq) && (nesqp->nesrcq != nesqp->nesscq)) | |
1517 | nes_clean_cq(nesqp, nesqp->nesrcq); | |
3c2d774c | 1518 | } |
3c2d774c GS |
1519 | nes_rem_ref(&nesqp->ibqp); |
1520 | return 0; | |
1521 | } | |
1522 | ||
1523 | ||
1524 | /** | |
1525 | * nes_create_cq | |
1526 | */ | |
1527 | static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, | |
1528 | int comp_vector, | |
1529 | struct ib_ucontext *context, struct ib_udata *udata) | |
1530 | { | |
1531 | u64 u64temp; | |
1532 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | |
1533 | struct nes_device *nesdev = nesvnic->nesdev; | |
1534 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
1535 | struct nes_cq *nescq; | |
1536 | struct nes_ucontext *nes_ucontext = NULL; | |
1537 | struct nes_cqp_request *cqp_request; | |
1538 | void *mem = NULL; | |
1539 | struct nes_hw_cqp_wqe *cqp_wqe; | |
1540 | struct nes_pbl *nespbl = NULL; | |
1541 | struct nes_create_cq_req req; | |
1542 | struct nes_create_cq_resp resp; | |
1543 | u32 cq_num = 0; | |
1544 | u32 opcode = 0; | |
1545 | u32 pbl_entries = 1; | |
1546 | int err; | |
1547 | unsigned long flags; | |
1548 | int ret; | |
1549 | ||
5924aea6 CT |
1550 | if (entries > nesadapter->max_cqe) |
1551 | return ERR_PTR(-EINVAL); | |
1552 | ||
3c2d774c | 1553 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_cqs, |
81821644 | 1554 | nesadapter->max_cq, &cq_num, &nesadapter->next_cq, NES_RESOURCE_CQ); |
3c2d774c GS |
1555 | if (err) { |
1556 | return ERR_PTR(err); | |
1557 | } | |
1558 | ||
1559 | nescq = kzalloc(sizeof(struct nes_cq), GFP_KERNEL); | |
1560 | if (!nescq) { | |
1561 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | |
1562 | nes_debug(NES_DBG_CQ, "Unable to allocate nes_cq struct\n"); | |
1563 | return ERR_PTR(-ENOMEM); | |
1564 | } | |
1565 | ||
1566 | nescq->hw_cq.cq_size = max(entries + 1, 5); | |
1567 | nescq->hw_cq.cq_number = cq_num; | |
1568 | nescq->ibcq.cqe = nescq->hw_cq.cq_size - 1; | |
1569 | ||
1570 | ||
1571 | if (context) { | |
1572 | nes_ucontext = to_nesucontext(context); | |
1573 | if (ib_copy_from_udata(&req, udata, sizeof (struct nes_create_cq_req))) { | |
1574 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | |
1575 | kfree(nescq); | |
1576 | return ERR_PTR(-EFAULT); | |
1577 | } | |
1578 | nesvnic->mcrq_ucontext = nes_ucontext; | |
1579 | nes_ucontext->mcrqf = req.mcrqf; | |
1580 | if (nes_ucontext->mcrqf) { | |
1581 | if (nes_ucontext->mcrqf & 0x80000000) | |
2e369544 | 1582 | nescq->hw_cq.cq_number = nesvnic->nic.qp_id + 28 + 2 * ((nes_ucontext->mcrqf & 0xf) - 1); |
3c2d774c GS |
1583 | else if (nes_ucontext->mcrqf & 0x40000000) |
1584 | nescq->hw_cq.cq_number = nes_ucontext->mcrqf & 0xffff; | |
1585 | else | |
1586 | nescq->hw_cq.cq_number = nesvnic->mcrq_qp_id + nes_ucontext->mcrqf-1; | |
5d1af5c8 | 1587 | nescq->mcrqf = nes_ucontext->mcrqf; |
3c2d774c GS |
1588 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); |
1589 | } | |
1590 | nes_debug(NES_DBG_CQ, "CQ Virtual Address = %08lX, size = %u.\n", | |
1591 | (unsigned long)req.user_cq_buffer, entries); | |
9300c0c0 | 1592 | err = 1; |
3c2d774c GS |
1593 | list_for_each_entry(nespbl, &nes_ucontext->cq_reg_mem_list, list) { |
1594 | if (nespbl->user_base == (unsigned long )req.user_cq_buffer) { | |
1595 | list_del(&nespbl->list); | |
1596 | err = 0; | |
1597 | nes_debug(NES_DBG_CQ, "Found PBL for virtual CQ. nespbl=%p.\n", | |
1598 | nespbl); | |
1599 | break; | |
1600 | } | |
1601 | } | |
1602 | if (err) { | |
1603 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | |
1604 | kfree(nescq); | |
9300c0c0 | 1605 | return ERR_PTR(-EFAULT); |
3c2d774c GS |
1606 | } |
1607 | ||
1608 | pbl_entries = nespbl->pbl_size >> 3; | |
1609 | nescq->cq_mem_size = 0; | |
1610 | } else { | |
1611 | nescq->cq_mem_size = nescq->hw_cq.cq_size * sizeof(struct nes_hw_cqe); | |
1612 | nes_debug(NES_DBG_CQ, "Attempting to allocate pci memory (%u entries, %u bytes) for CQ%u.\n", | |
1613 | entries, nescq->cq_mem_size, nescq->hw_cq.cq_number); | |
1614 | ||
1615 | /* allocate the physical buffer space */ | |
1616 | mem = pci_alloc_consistent(nesdev->pcidev, nescq->cq_mem_size, | |
1617 | &nescq->hw_cq.cq_pbase); | |
1618 | if (!mem) { | |
1619 | printk(KERN_ERR PFX "Unable to allocate pci memory for cq\n"); | |
1620 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | |
1621 | kfree(nescq); | |
1622 | return ERR_PTR(-ENOMEM); | |
1623 | } | |
1624 | ||
1625 | memset(mem, 0, nescq->cq_mem_size); | |
1626 | nescq->hw_cq.cq_vbase = mem; | |
1627 | nescq->hw_cq.cq_head = 0; | |
1628 | nes_debug(NES_DBG_CQ, "CQ%u virtual address @ %p, phys = 0x%08X\n", | |
1629 | nescq->hw_cq.cq_number, nescq->hw_cq.cq_vbase, | |
1630 | (u32)nescq->hw_cq.cq_pbase); | |
1631 | } | |
1632 | ||
1633 | nescq->hw_cq.ce_handler = nes_iwarp_ce_handler; | |
1634 | spin_lock_init(&nescq->lock); | |
1635 | ||
1636 | /* send CreateCQ request to CQP */ | |
1637 | cqp_request = nes_get_cqp_request(nesdev); | |
1638 | if (cqp_request == NULL) { | |
1639 | nes_debug(NES_DBG_CQ, "Failed to get a cqp_request.\n"); | |
1640 | if (!context) | |
1641 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | |
1642 | nescq->hw_cq.cq_pbase); | |
5d1af5c8 MW |
1643 | else { |
1644 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, | |
1645 | nespbl->pbl_vbase, nespbl->pbl_pbase); | |
1646 | kfree(nespbl); | |
1647 | } | |
1648 | ||
3c2d774c GS |
1649 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); |
1650 | kfree(nescq); | |
1651 | return ERR_PTR(-ENOMEM); | |
1652 | } | |
1653 | cqp_request->waiting = 1; | |
1654 | cqp_wqe = &cqp_request->cqp_wqe; | |
1655 | ||
1656 | opcode = NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID | | |
1657 | NES_CQP_CQ_CHK_OVERFLOW | | |
1658 | NES_CQP_CQ_CEQE_MASK | ((u32)nescq->hw_cq.cq_size << 16); | |
1659 | ||
1660 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
1661 | ||
1662 | if (pbl_entries != 1) { | |
1663 | if (pbl_entries > 32) { | |
1664 | /* use 4k pbl */ | |
1665 | nes_debug(NES_DBG_CQ, "pbl_entries=%u, use a 4k PBL\n", pbl_entries); | |
1666 | if (nesadapter->free_4kpbl == 0) { | |
c5d321e5 FL |
1667 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); |
1668 | nes_free_cqp_request(nesdev, cqp_request); | |
3c2d774c GS |
1669 | if (!context) |
1670 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | |
1671 | nescq->hw_cq.cq_pbase); | |
5d1af5c8 MW |
1672 | else { |
1673 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, | |
1674 | nespbl->pbl_vbase, nespbl->pbl_pbase); | |
1675 | kfree(nespbl); | |
1676 | } | |
3c2d774c GS |
1677 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); |
1678 | kfree(nescq); | |
1679 | return ERR_PTR(-ENOMEM); | |
1680 | } else { | |
1681 | opcode |= (NES_CQP_CQ_VIRT | NES_CQP_CQ_4KB_CHUNK); | |
1682 | nescq->virtual_cq = 2; | |
1683 | nesadapter->free_4kpbl--; | |
1684 | } | |
1685 | } else { | |
1686 | /* use 256 byte pbl */ | |
1687 | nes_debug(NES_DBG_CQ, "pbl_entries=%u, use a 256 byte PBL\n", pbl_entries); | |
1688 | if (nesadapter->free_256pbl == 0) { | |
c5d321e5 FL |
1689 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); |
1690 | nes_free_cqp_request(nesdev, cqp_request); | |
3c2d774c GS |
1691 | if (!context) |
1692 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | |
1693 | nescq->hw_cq.cq_pbase); | |
5d1af5c8 MW |
1694 | else { |
1695 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, | |
1696 | nespbl->pbl_vbase, nespbl->pbl_pbase); | |
1697 | kfree(nespbl); | |
1698 | } | |
3c2d774c GS |
1699 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); |
1700 | kfree(nescq); | |
1701 | return ERR_PTR(-ENOMEM); | |
1702 | } else { | |
1703 | opcode |= NES_CQP_CQ_VIRT; | |
1704 | nescq->virtual_cq = 1; | |
1705 | nesadapter->free_256pbl--; | |
1706 | } | |
1707 | } | |
1708 | } | |
1709 | ||
1710 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
1711 | ||
1712 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
1713 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | |
1714 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, | |
1715 | (nescq->hw_cq.cq_number | ((u32)nesdev->ceq_index << 16))); | |
1716 | ||
1717 | if (context) { | |
1718 | if (pbl_entries != 1) | |
1719 | u64temp = (u64)nespbl->pbl_pbase; | |
1720 | else | |
1721 | u64temp = le64_to_cpu(nespbl->pbl_vbase[0]); | |
1722 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX, | |
1723 | nes_ucontext->mmap_db_index[0]); | |
1724 | } else { | |
1725 | u64temp = (u64)nescq->hw_cq.cq_pbase; | |
1726 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0; | |
1727 | } | |
1728 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp); | |
1729 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0; | |
1730 | u64temp = (u64)(unsigned long)&nescq->hw_cq; | |
1731 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] = | |
1732 | cpu_to_le32((u32)(u64temp >> 1)); | |
1733 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = | |
1734 | cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF); | |
1735 | ||
1736 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 1737 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1738 | |
1739 | /* Wait for CQP */ | |
1740 | nes_debug(NES_DBG_CQ, "Waiting for create iWARP CQ%u to complete.\n", | |
1741 | nescq->hw_cq.cq_number); | |
1742 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | |
1743 | NES_EVENT_TIMEOUT * 2); | |
1744 | nes_debug(NES_DBG_CQ, "Create iWARP CQ%u completed, wait_event_timeout ret = %d.\n", | |
1745 | nescq->hw_cq.cq_number, ret); | |
1746 | if ((!ret) || (cqp_request->major_code)) { | |
1ff66e8c | 1747 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1748 | if (!context) |
1749 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | |
1750 | nescq->hw_cq.cq_pbase); | |
5d1af5c8 MW |
1751 | else { |
1752 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, | |
1753 | nespbl->pbl_vbase, nespbl->pbl_pbase); | |
1754 | kfree(nespbl); | |
1755 | } | |
3c2d774c GS |
1756 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); |
1757 | kfree(nescq); | |
1758 | return ERR_PTR(-EIO); | |
3c2d774c | 1759 | } |
1ff66e8c | 1760 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1761 | |
1762 | if (context) { | |
1763 | /* free the nespbl */ | |
1764 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | |
1765 | nespbl->pbl_pbase); | |
1766 | kfree(nespbl); | |
1767 | resp.cq_id = nescq->hw_cq.cq_number; | |
1768 | resp.cq_size = nescq->hw_cq.cq_size; | |
1769 | resp.mmap_db_index = 0; | |
1770 | if (ib_copy_to_udata(udata, &resp, sizeof resp)) { | |
1771 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | |
1772 | kfree(nescq); | |
1773 | return ERR_PTR(-EFAULT); | |
1774 | } | |
1775 | } | |
1776 | ||
1777 | return &nescq->ibcq; | |
1778 | } | |
1779 | ||
1780 | ||
1781 | /** | |
1782 | * nes_destroy_cq | |
1783 | */ | |
1784 | static int nes_destroy_cq(struct ib_cq *ib_cq) | |
1785 | { | |
1786 | struct nes_cq *nescq; | |
1787 | struct nes_device *nesdev; | |
1788 | struct nes_vnic *nesvnic; | |
1789 | struct nes_adapter *nesadapter; | |
1790 | struct nes_hw_cqp_wqe *cqp_wqe; | |
1791 | struct nes_cqp_request *cqp_request; | |
1792 | unsigned long flags; | |
1793 | u32 opcode = 0; | |
1794 | int ret; | |
1795 | ||
1796 | if (ib_cq == NULL) | |
1797 | return 0; | |
1798 | ||
1799 | nescq = to_nescq(ib_cq); | |
1800 | nesvnic = to_nesvnic(ib_cq->device); | |
1801 | nesdev = nesvnic->nesdev; | |
1802 | nesadapter = nesdev->nesadapter; | |
1803 | ||
1804 | nes_debug(NES_DBG_CQ, "Destroy CQ%u\n", nescq->hw_cq.cq_number); | |
1805 | ||
1806 | /* Send DestroyCQ request to CQP */ | |
1807 | cqp_request = nes_get_cqp_request(nesdev); | |
1808 | if (cqp_request == NULL) { | |
1809 | nes_debug(NES_DBG_CQ, "Failed to get a cqp_request.\n"); | |
1810 | return -ENOMEM; | |
1811 | } | |
1812 | cqp_request->waiting = 1; | |
1813 | cqp_wqe = &cqp_request->cqp_wqe; | |
1814 | opcode = NES_CQP_DESTROY_CQ | (nescq->hw_cq.cq_size << 16); | |
1815 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
1816 | if (nescq->virtual_cq == 1) { | |
1817 | nesadapter->free_256pbl++; | |
1818 | if (nesadapter->free_256pbl > nesadapter->max_256pbl) { | |
1819 | printk(KERN_ERR PFX "%s: free 256B PBLs(%u) has exceeded the max(%u)\n", | |
33718363 | 1820 | __func__, nesadapter->free_256pbl, nesadapter->max_256pbl); |
3c2d774c GS |
1821 | } |
1822 | } else if (nescq->virtual_cq == 2) { | |
1823 | nesadapter->free_4kpbl++; | |
1824 | if (nesadapter->free_4kpbl > nesadapter->max_4kpbl) { | |
1825 | printk(KERN_ERR PFX "%s: free 4K PBLs(%u) has exceeded the max(%u)\n", | |
33718363 | 1826 | __func__, nesadapter->free_4kpbl, nesadapter->max_4kpbl); |
3c2d774c GS |
1827 | } |
1828 | opcode |= NES_CQP_CQ_4KB_CHUNK; | |
1829 | } | |
1830 | ||
1831 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
1832 | ||
1833 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
1834 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | |
1835 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, | |
1836 | (nescq->hw_cq.cq_number | ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 16))); | |
5d1af5c8 MW |
1837 | if (!nescq->mcrqf) |
1838 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, nescq->hw_cq.cq_number); | |
1839 | ||
3c2d774c | 1840 | atomic_set(&cqp_request->refcount, 2); |
8294f297 | 1841 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1842 | |
1843 | /* Wait for CQP */ | |
1844 | nes_debug(NES_DBG_CQ, "Waiting for destroy iWARP CQ%u to complete.\n", | |
1845 | nescq->hw_cq.cq_number); | |
1846 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | |
1847 | NES_EVENT_TIMEOUT); | |
1848 | nes_debug(NES_DBG_CQ, "Destroy iWARP CQ%u completed, wait_event_timeout ret = %u," | |
1849 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
1850 | nescq->hw_cq.cq_number, ret, cqp_request->major_code, | |
1851 | cqp_request->minor_code); | |
1ff66e8c RD |
1852 | if (!ret) { |
1853 | nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy timeout expired\n", | |
3c2d774c | 1854 | nescq->hw_cq.cq_number); |
1ff66e8c RD |
1855 | ret = -ETIME; |
1856 | } else if (cqp_request->major_code) { | |
1857 | nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy failed\n", | |
3c2d774c | 1858 | nescq->hw_cq.cq_number); |
1ff66e8c | 1859 | ret = -EIO; |
3c2d774c GS |
1860 | } else { |
1861 | ret = 0; | |
3c2d774c | 1862 | } |
1ff66e8c | 1863 | nes_put_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
1864 | |
1865 | if (nescq->cq_mem_size) | |
1866 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, | |
31d1e340 | 1867 | nescq->hw_cq.cq_vbase, nescq->hw_cq.cq_pbase); |
3c2d774c GS |
1868 | kfree(nescq); |
1869 | ||
1870 | return ret; | |
1871 | } | |
1872 | ||
0145f341 DW |
1873 | /** |
1874 | * root_256 | |
1875 | */ | |
1876 | static u32 root_256(struct nes_device *nesdev, | |
1877 | struct nes_root_vpbl *root_vpbl, | |
1878 | struct nes_root_vpbl *new_root, | |
cc005fa2 | 1879 | u16 pbl_count_4k) |
0145f341 DW |
1880 | { |
1881 | u64 leaf_pbl; | |
1882 | int i, j, k; | |
1883 | ||
1884 | if (pbl_count_4k == 1) { | |
1885 | new_root->pbl_vbase = pci_alloc_consistent(nesdev->pcidev, | |
1886 | 512, &new_root->pbl_pbase); | |
1887 | ||
1888 | if (new_root->pbl_vbase == NULL) | |
1889 | return 0; | |
1890 | ||
1891 | leaf_pbl = (u64)root_vpbl->pbl_pbase; | |
1892 | for (i = 0; i < 16; i++) { | |
1893 | new_root->pbl_vbase[i].pa_low = | |
1894 | cpu_to_le32((u32)leaf_pbl); | |
1895 | new_root->pbl_vbase[i].pa_high = | |
1896 | cpu_to_le32((u32)((((u64)leaf_pbl) >> 32))); | |
1897 | leaf_pbl += 256; | |
1898 | } | |
1899 | } else { | |
1900 | for (i = 3; i >= 0; i--) { | |
1901 | j = i * 16; | |
1902 | root_vpbl->pbl_vbase[j] = root_vpbl->pbl_vbase[i]; | |
1903 | leaf_pbl = le32_to_cpu(root_vpbl->pbl_vbase[j].pa_low) + | |
1904 | (((u64)le32_to_cpu(root_vpbl->pbl_vbase[j].pa_high)) | |
1905 | << 32); | |
1906 | for (k = 1; k < 16; k++) { | |
1907 | leaf_pbl += 256; | |
1908 | root_vpbl->pbl_vbase[j + k].pa_low = | |
1909 | cpu_to_le32((u32)leaf_pbl); | |
1910 | root_vpbl->pbl_vbase[j + k].pa_high = | |
1911 | cpu_to_le32((u32)((((u64)leaf_pbl) >> 32))); | |
1912 | } | |
1913 | } | |
1914 | } | |
1915 | ||
1916 | return 1; | |
1917 | } | |
1918 | ||
3c2d774c GS |
1919 | |
1920 | /** | |
1921 | * nes_reg_mr | |
1922 | */ | |
1923 | static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd, | |
1924 | u32 stag, u64 region_length, struct nes_root_vpbl *root_vpbl, | |
0145f341 DW |
1925 | dma_addr_t single_buffer, u16 pbl_count_4k, |
1926 | u16 residual_page_count_4k, int acc, u64 *iova_start, | |
1927 | u16 *actual_pbl_cnt, u8 *used_4k_pbls) | |
3c2d774c GS |
1928 | { |
1929 | struct nes_hw_cqp_wqe *cqp_wqe; | |
1930 | struct nes_cqp_request *cqp_request; | |
1931 | unsigned long flags; | |
1932 | int ret; | |
1933 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
0145f341 | 1934 | uint pg_cnt = 0; |
1af9222b | 1935 | u16 pbl_count_256 = 0; |
0145f341 DW |
1936 | u16 pbl_count = 0; |
1937 | u8 use_256_pbls = 0; | |
1938 | u8 use_4k_pbls = 0; | |
1939 | u16 use_two_level = (pbl_count_4k > 1) ? 1 : 0; | |
812d8672 | 1940 | struct nes_root_vpbl new_root = { 0, NULL, NULL }; |
3c2d774c GS |
1941 | u32 opcode = 0; |
1942 | u16 major_code; | |
1943 | ||
1944 | /* Register the region with the adapter */ | |
1945 | cqp_request = nes_get_cqp_request(nesdev); | |
1946 | if (cqp_request == NULL) { | |
1947 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | |
1948 | return -ENOMEM; | |
1949 | } | |
1950 | cqp_request->waiting = 1; | |
1951 | cqp_wqe = &cqp_request->cqp_wqe; | |
1952 | ||
0145f341 DW |
1953 | if (pbl_count_4k) { |
1954 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
1955 | ||
1956 | pg_cnt = ((pbl_count_4k - 1) * 512) + residual_page_count_4k; | |
1957 | pbl_count_256 = (pg_cnt + 31) / 32; | |
1958 | if (pg_cnt <= 32) { | |
1959 | if (pbl_count_256 <= nesadapter->free_256pbl) | |
1960 | use_256_pbls = 1; | |
1961 | else if (pbl_count_4k <= nesadapter->free_4kpbl) | |
1962 | use_4k_pbls = 1; | |
1963 | } else if (pg_cnt <= 2048) { | |
1964 | if (((pbl_count_4k + use_two_level) <= nesadapter->free_4kpbl) && | |
1965 | (nesadapter->free_4kpbl > (nesadapter->max_4kpbl >> 1))) { | |
1966 | use_4k_pbls = 1; | |
1967 | } else if ((pbl_count_256 + 1) <= nesadapter->free_256pbl) { | |
1968 | use_256_pbls = 1; | |
1969 | use_two_level = 1; | |
1970 | } else if ((pbl_count_4k + use_two_level) <= nesadapter->free_4kpbl) { | |
1971 | use_4k_pbls = 1; | |
3c2d774c GS |
1972 | } |
1973 | } else { | |
0145f341 DW |
1974 | if ((pbl_count_4k + 1) <= nesadapter->free_4kpbl) |
1975 | use_4k_pbls = 1; | |
3c2d774c | 1976 | } |
0145f341 DW |
1977 | |
1978 | if (use_256_pbls) { | |
1979 | pbl_count = pbl_count_256; | |
1980 | nesadapter->free_256pbl -= pbl_count + use_two_level; | |
1981 | } else if (use_4k_pbls) { | |
1982 | pbl_count = pbl_count_4k; | |
1983 | nesadapter->free_4kpbl -= pbl_count + use_two_level; | |
1984 | } else { | |
1985 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
1986 | nes_debug(NES_DBG_MR, "Out of Pbls\n"); | |
1987 | nes_free_cqp_request(nesdev, cqp_request); | |
1988 | return -ENOMEM; | |
1989 | } | |
1990 | ||
1991 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
3c2d774c GS |
1992 | } |
1993 | ||
0145f341 | 1994 | if (use_256_pbls && use_two_level) { |
cc005fa2 | 1995 | if (root_256(nesdev, root_vpbl, &new_root, pbl_count_4k) == 1) { |
0145f341 DW |
1996 | if (new_root.pbl_pbase != 0) |
1997 | root_vpbl = &new_root; | |
1998 | } else { | |
1999 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
2000 | nesadapter->free_256pbl += pbl_count_256 + use_two_level; | |
2001 | use_256_pbls = 0; | |
2002 | ||
2003 | if (pbl_count_4k == 1) | |
2004 | use_two_level = 0; | |
2005 | pbl_count = pbl_count_4k; | |
2006 | ||
2007 | if ((pbl_count_4k + use_two_level) <= nesadapter->free_4kpbl) { | |
2008 | nesadapter->free_4kpbl -= pbl_count + use_two_level; | |
2009 | use_4k_pbls = 1; | |
2010 | } | |
2011 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
2012 | ||
2013 | if (use_4k_pbls == 0) | |
2014 | return -ENOMEM; | |
2015 | } | |
2016 | } | |
3c2d774c GS |
2017 | |
2018 | opcode = NES_CQP_REGISTER_STAG | NES_CQP_STAG_RIGHTS_LOCAL_READ | | |
2019 | NES_CQP_STAG_VA_TO | NES_CQP_STAG_MR; | |
2020 | if (acc & IB_ACCESS_LOCAL_WRITE) | |
2021 | opcode |= NES_CQP_STAG_RIGHTS_LOCAL_WRITE; | |
2022 | if (acc & IB_ACCESS_REMOTE_WRITE) | |
2023 | opcode |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE | NES_CQP_STAG_REM_ACC_EN; | |
2024 | if (acc & IB_ACCESS_REMOTE_READ) | |
2025 | opcode |= NES_CQP_STAG_RIGHTS_REMOTE_READ | NES_CQP_STAG_REM_ACC_EN; | |
2026 | if (acc & IB_ACCESS_MW_BIND) | |
2027 | opcode |= NES_CQP_STAG_RIGHTS_WINDOW_BIND | NES_CQP_STAG_REM_ACC_EN; | |
2028 | ||
2029 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
2030 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | |
2031 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_VA_LOW_IDX, *iova_start); | |
2032 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_LOW_IDX, region_length); | |
2033 | ||
2034 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] = | |
2035 | cpu_to_le32((u32)(region_length >> 8) & 0xff000000); | |
2036 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] |= | |
2037 | cpu_to_le32(nespd->pd_id & 0x00007fff); | |
2038 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag); | |
2039 | ||
2040 | if (pbl_count == 0) { | |
2041 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, single_buffer); | |
2042 | } else { | |
2043 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, root_vpbl->pbl_pbase); | |
2044 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX, pbl_count); | |
0145f341 | 2045 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_LEN_IDX, (pg_cnt * 8)); |
3c2d774c | 2046 | |
0145f341 | 2047 | if (use_4k_pbls) |
3c2d774c GS |
2048 | cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(NES_CQP_STAG_PBL_BLK_SIZE); |
2049 | } | |
2050 | barrier(); | |
2051 | ||
2052 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 2053 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
2054 | |
2055 | /* Wait for CQP */ | |
2056 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | |
2057 | NES_EVENT_TIMEOUT); | |
2058 | nes_debug(NES_DBG_MR, "Register STag 0x%08X completed, wait_event_timeout ret = %u," | |
2059 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
2060 | stag, ret, cqp_request->major_code, cqp_request->minor_code); | |
2061 | major_code = cqp_request->major_code; | |
1ff66e8c RD |
2062 | nes_put_cqp_request(nesdev, cqp_request); |
2063 | ||
dae5d13a DW |
2064 | if ((!ret || major_code) && pbl_count != 0) { |
2065 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
0145f341 DW |
2066 | if (use_256_pbls) |
2067 | nesadapter->free_256pbl += pbl_count + use_two_level; | |
2068 | else if (use_4k_pbls) | |
2069 | nesadapter->free_4kpbl += pbl_count + use_two_level; | |
dae5d13a DW |
2070 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); |
2071 | } | |
0145f341 DW |
2072 | if (new_root.pbl_pbase) |
2073 | pci_free_consistent(nesdev->pcidev, 512, new_root.pbl_vbase, | |
2074 | new_root.pbl_pbase); | |
2075 | ||
3c2d774c GS |
2076 | if (!ret) |
2077 | return -ETIME; | |
2078 | else if (major_code) | |
2079 | return -EIO; | |
3c2d774c | 2080 | |
0145f341 DW |
2081 | *actual_pbl_cnt = pbl_count + use_two_level; |
2082 | *used_4k_pbls = use_4k_pbls; | |
3c2d774c GS |
2083 | return 0; |
2084 | } | |
2085 | ||
2086 | ||
2087 | /** | |
2088 | * nes_reg_phys_mr | |
2089 | */ | |
2090 | static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd, | |
2091 | struct ib_phys_buf *buffer_list, int num_phys_buf, int acc, | |
2092 | u64 * iova_start) | |
2093 | { | |
2094 | u64 region_length; | |
2095 | struct nes_pd *nespd = to_nespd(ib_pd); | |
2096 | struct nes_vnic *nesvnic = to_nesvnic(ib_pd->device); | |
2097 | struct nes_device *nesdev = nesvnic->nesdev; | |
2098 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
2099 | struct nes_mr *nesmr; | |
2100 | struct ib_mr *ibmr; | |
2101 | struct nes_vpbl vpbl; | |
2102 | struct nes_root_vpbl root_vpbl; | |
2103 | u32 stag; | |
2104 | u32 i; | |
3f32eb11 | 2105 | unsigned long mask; |
3c2d774c GS |
2106 | u32 stag_index = 0; |
2107 | u32 next_stag_index = 0; | |
2108 | u32 driver_key = 0; | |
2109 | u32 root_pbl_index = 0; | |
2110 | u32 cur_pbl_index = 0; | |
69d51023 | 2111 | int err = 0; |
3c2d774c GS |
2112 | int ret = 0; |
2113 | u16 pbl_count = 0; | |
2114 | u8 single_page = 1; | |
2115 | u8 stag_key = 0; | |
2116 | ||
3c2d774c GS |
2117 | region_length = 0; |
2118 | vpbl.pbl_vbase = NULL; | |
2119 | root_vpbl.pbl_vbase = NULL; | |
2120 | root_vpbl.pbl_pbase = 0; | |
2121 | ||
2122 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); | |
2123 | stag_key = (u8)next_stag_index; | |
2124 | ||
2125 | driver_key = 0; | |
2126 | ||
2127 | next_stag_index >>= 8; | |
2128 | next_stag_index %= nesadapter->max_mr; | |
2129 | if (num_phys_buf > (1024*512)) { | |
2130 | return ERR_PTR(-E2BIG); | |
2131 | } | |
2132 | ||
3f32eb11 DW |
2133 | if ((buffer_list[0].addr ^ *iova_start) & ~PAGE_MASK) |
2134 | return ERR_PTR(-EINVAL); | |
2135 | ||
3c2d774c | 2136 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, nesadapter->max_mr, |
81821644 | 2137 | &stag_index, &next_stag_index, NES_RESOURCE_PHYS_MR); |
3c2d774c GS |
2138 | if (err) { |
2139 | return ERR_PTR(err); | |
2140 | } | |
2141 | ||
2142 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | |
2143 | if (!nesmr) { | |
2144 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2145 | return ERR_PTR(-ENOMEM); | |
2146 | } | |
2147 | ||
2148 | for (i = 0; i < num_phys_buf; i++) { | |
2149 | ||
2150 | if ((i & 0x01FF) == 0) { | |
2151 | if (root_pbl_index == 1) { | |
2152 | /* Allocate the root PBL */ | |
2153 | root_vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 8192, | |
2154 | &root_vpbl.pbl_pbase); | |
2155 | nes_debug(NES_DBG_MR, "Allocating root PBL, va = %p, pa = 0x%08X\n", | |
2156 | root_vpbl.pbl_vbase, (unsigned int)root_vpbl.pbl_pbase); | |
2157 | if (!root_vpbl.pbl_vbase) { | |
2158 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | |
2159 | vpbl.pbl_pbase); | |
2160 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2161 | kfree(nesmr); | |
2162 | return ERR_PTR(-ENOMEM); | |
2163 | } | |
2164 | root_vpbl.leaf_vpbl = kzalloc(sizeof(*root_vpbl.leaf_vpbl)*1024, GFP_KERNEL); | |
2165 | if (!root_vpbl.leaf_vpbl) { | |
2166 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | |
2167 | root_vpbl.pbl_pbase); | |
2168 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | |
2169 | vpbl.pbl_pbase); | |
2170 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2171 | kfree(nesmr); | |
2172 | return ERR_PTR(-ENOMEM); | |
2173 | } | |
2174 | root_vpbl.pbl_vbase[0].pa_low = cpu_to_le32((u32)vpbl.pbl_pbase); | |
2175 | root_vpbl.pbl_vbase[0].pa_high = | |
2176 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32))); | |
2177 | root_vpbl.leaf_vpbl[0] = vpbl; | |
2178 | } | |
2179 | /* Allocate a 4K buffer for the PBL */ | |
2180 | vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096, | |
2181 | &vpbl.pbl_pbase); | |
2182 | nes_debug(NES_DBG_MR, "Allocating leaf PBL, va = %p, pa = 0x%016lX\n", | |
2183 | vpbl.pbl_vbase, (unsigned long)vpbl.pbl_pbase); | |
2184 | if (!vpbl.pbl_vbase) { | |
2185 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2186 | ibmr = ERR_PTR(-ENOMEM); | |
2187 | kfree(nesmr); | |
2188 | goto reg_phys_err; | |
2189 | } | |
2190 | /* Fill in the root table */ | |
2191 | if (1 <= root_pbl_index) { | |
2192 | root_vpbl.pbl_vbase[root_pbl_index].pa_low = | |
2193 | cpu_to_le32((u32)vpbl.pbl_pbase); | |
2194 | root_vpbl.pbl_vbase[root_pbl_index].pa_high = | |
2195 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32))); | |
2196 | root_vpbl.leaf_vpbl[root_pbl_index] = vpbl; | |
2197 | } | |
2198 | root_pbl_index++; | |
2199 | cur_pbl_index = 0; | |
2200 | } | |
3c2d774c | 2201 | |
3f32eb11 DW |
2202 | mask = !buffer_list[i].size; |
2203 | if (i != 0) | |
2204 | mask |= buffer_list[i].addr; | |
2205 | if (i != num_phys_buf - 1) | |
2206 | mask |= buffer_list[i].addr + buffer_list[i].size; | |
2207 | ||
2208 | if (mask & ~PAGE_MASK) { | |
3c2d774c | 2209 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); |
3f32eb11 | 2210 | nes_debug(NES_DBG_MR, "Invalid buffer addr or size\n"); |
3c2d774c GS |
2211 | ibmr = ERR_PTR(-EINVAL); |
2212 | kfree(nesmr); | |
2213 | goto reg_phys_err; | |
2214 | } | |
2215 | ||
2216 | region_length += buffer_list[i].size; | |
2217 | if ((i != 0) && (single_page)) { | |
2218 | if ((buffer_list[i-1].addr+PAGE_SIZE) != buffer_list[i].addr) | |
2219 | single_page = 0; | |
2220 | } | |
3f32eb11 | 2221 | vpbl.pbl_vbase[cur_pbl_index].pa_low = cpu_to_le32((u32)buffer_list[i].addr & PAGE_MASK); |
3c2d774c GS |
2222 | vpbl.pbl_vbase[cur_pbl_index++].pa_high = |
2223 | cpu_to_le32((u32)((((u64)buffer_list[i].addr) >> 32))); | |
2224 | } | |
2225 | ||
2226 | stag = stag_index << 8; | |
2227 | stag |= driver_key; | |
2228 | stag += (u32)stag_key; | |
2229 | ||
2230 | nes_debug(NES_DBG_MR, "Registering STag 0x%08X, VA = 0x%016lX," | |
2231 | " length = 0x%016lX, index = 0x%08X\n", | |
2232 | stag, (unsigned long)*iova_start, (unsigned long)region_length, stag_index); | |
2233 | ||
3c2d774c GS |
2234 | /* Make the leaf PBL the root if only one PBL */ |
2235 | if (root_pbl_index == 1) { | |
2236 | root_vpbl.pbl_pbase = vpbl.pbl_pbase; | |
2237 | } | |
2238 | ||
2239 | if (single_page) { | |
2240 | pbl_count = 0; | |
2241 | } else { | |
2242 | pbl_count = root_pbl_index; | |
2243 | } | |
2244 | ret = nes_reg_mr(nesdev, nespd, stag, region_length, &root_vpbl, | |
0145f341 DW |
2245 | buffer_list[0].addr, pbl_count, (u16)cur_pbl_index, acc, iova_start, |
2246 | &nesmr->pbls_used, &nesmr->pbl_4k); | |
3c2d774c GS |
2247 | |
2248 | if (ret == 0) { | |
2249 | nesmr->ibmr.rkey = stag; | |
2250 | nesmr->ibmr.lkey = stag; | |
2251 | nesmr->mode = IWNES_MEMREG_TYPE_MEM; | |
2252 | ibmr = &nesmr->ibmr; | |
3c2d774c GS |
2253 | } else { |
2254 | kfree(nesmr); | |
2255 | ibmr = ERR_PTR(-ENOMEM); | |
2256 | } | |
2257 | ||
2258 | reg_phys_err: | |
2259 | /* free the resources */ | |
2260 | if (root_pbl_index == 1) { | |
2261 | /* single PBL case */ | |
2262 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, vpbl.pbl_pbase); | |
2263 | } else { | |
2264 | for (i=0; i<root_pbl_index; i++) { | |
2265 | pci_free_consistent(nesdev->pcidev, 4096, root_vpbl.leaf_vpbl[i].pbl_vbase, | |
2266 | root_vpbl.leaf_vpbl[i].pbl_pbase); | |
2267 | } | |
2268 | kfree(root_vpbl.leaf_vpbl); | |
2269 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | |
2270 | root_vpbl.pbl_pbase); | |
2271 | } | |
2272 | ||
2273 | return ibmr; | |
2274 | } | |
2275 | ||
2276 | ||
2277 | /** | |
2278 | * nes_get_dma_mr | |
2279 | */ | |
2280 | static struct ib_mr *nes_get_dma_mr(struct ib_pd *pd, int acc) | |
2281 | { | |
2282 | struct ib_phys_buf bl; | |
2283 | u64 kva = 0; | |
2284 | ||
2285 | nes_debug(NES_DBG_MR, "\n"); | |
2286 | ||
2287 | bl.size = (u64)0xffffffffffULL; | |
2288 | bl.addr = 0; | |
2289 | return nes_reg_phys_mr(pd, &bl, 1, acc, &kva); | |
2290 | } | |
2291 | ||
2292 | ||
2293 | /** | |
2294 | * nes_reg_user_mr | |
2295 | */ | |
2296 | static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, | |
2297 | u64 virt, int acc, struct ib_udata *udata) | |
2298 | { | |
2299 | u64 iova_start; | |
2300 | __le64 *pbl; | |
2301 | u64 region_length; | |
2302 | dma_addr_t last_dma_addr = 0; | |
2303 | dma_addr_t first_dma_addr = 0; | |
2304 | struct nes_pd *nespd = to_nespd(pd); | |
2305 | struct nes_vnic *nesvnic = to_nesvnic(pd->device); | |
2306 | struct nes_device *nesdev = nesvnic->nesdev; | |
2307 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
2308 | struct ib_mr *ibmr = ERR_PTR(-EINVAL); | |
2309 | struct ib_umem_chunk *chunk; | |
2310 | struct nes_ucontext *nes_ucontext; | |
2311 | struct nes_pbl *nespbl; | |
2312 | struct nes_mr *nesmr; | |
2313 | struct ib_umem *region; | |
2314 | struct nes_mem_reg_req req; | |
2315 | struct nes_vpbl vpbl; | |
2316 | struct nes_root_vpbl root_vpbl; | |
2317 | int nmap_index, page_index; | |
2318 | int page_count = 0; | |
2319 | int err, pbl_depth = 0; | |
2320 | int chunk_pages; | |
2321 | int ret; | |
2322 | u32 stag; | |
2323 | u32 stag_index = 0; | |
2324 | u32 next_stag_index; | |
2325 | u32 driver_key; | |
2326 | u32 root_pbl_index = 0; | |
2327 | u32 cur_pbl_index = 0; | |
2328 | u32 skip_pages; | |
2329 | u16 pbl_count; | |
2330 | u8 single_page = 1; | |
2331 | u8 stag_key; | |
2332 | ||
cb9fbc5c | 2333 | region = ib_umem_get(pd->uobject->context, start, length, acc, 0); |
3c2d774c GS |
2334 | if (IS_ERR(region)) { |
2335 | return (struct ib_mr *)region; | |
2336 | } | |
2337 | ||
2338 | nes_debug(NES_DBG_MR, "User base = 0x%lX, Virt base = 0x%lX, length = %u," | |
2339 | " offset = %u, page size = %u.\n", | |
2340 | (unsigned long int)start, (unsigned long int)virt, (u32)length, | |
2341 | region->offset, region->page_size); | |
2342 | ||
2343 | skip_pages = ((u32)region->offset) >> 12; | |
2344 | ||
e2e435f2 JL |
2345 | if (ib_copy_from_udata(&req, udata, sizeof(req))) { |
2346 | ib_umem_release(region); | |
3c2d774c | 2347 | return ERR_PTR(-EFAULT); |
e2e435f2 | 2348 | } |
3c2d774c GS |
2349 | nes_debug(NES_DBG_MR, "Memory Registration type = %08X.\n", req.reg_type); |
2350 | ||
2351 | switch (req.reg_type) { | |
2352 | case IWNES_MEMREG_TYPE_MEM: | |
2353 | pbl_depth = 0; | |
2354 | region_length = 0; | |
2355 | vpbl.pbl_vbase = NULL; | |
2356 | root_vpbl.pbl_vbase = NULL; | |
2357 | root_vpbl.pbl_pbase = 0; | |
2358 | ||
2359 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); | |
2360 | stag_key = (u8)next_stag_index; | |
2361 | ||
2362 | driver_key = next_stag_index & 0x70000000; | |
2363 | ||
2364 | next_stag_index >>= 8; | |
2365 | next_stag_index %= nesadapter->max_mr; | |
2366 | ||
2367 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, | |
81821644 | 2368 | nesadapter->max_mr, &stag_index, &next_stag_index, NES_RESOURCE_USER_MR); |
3c2d774c GS |
2369 | if (err) { |
2370 | ib_umem_release(region); | |
2371 | return ERR_PTR(err); | |
2372 | } | |
2373 | ||
2374 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | |
2375 | if (!nesmr) { | |
2376 | ib_umem_release(region); | |
2377 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2378 | return ERR_PTR(-ENOMEM); | |
2379 | } | |
2380 | nesmr->region = region; | |
2381 | ||
2382 | list_for_each_entry(chunk, ®ion->chunk_list, list) { | |
2383 | nes_debug(NES_DBG_MR, "Chunk: nents = %u, nmap = %u .\n", | |
2384 | chunk->nents, chunk->nmap); | |
2385 | for (nmap_index = 0; nmap_index < chunk->nmap; ++nmap_index) { | |
2386 | if (sg_dma_address(&chunk->page_list[nmap_index]) & ~PAGE_MASK) { | |
2387 | ib_umem_release(region); | |
2388 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2389 | nes_debug(NES_DBG_MR, "Unaligned Memory Buffer: 0x%x\n", | |
2390 | (unsigned int) sg_dma_address(&chunk->page_list[nmap_index])); | |
2391 | ibmr = ERR_PTR(-EINVAL); | |
2392 | kfree(nesmr); | |
2393 | goto reg_user_mr_err; | |
2394 | } | |
2395 | ||
2396 | if (!sg_dma_len(&chunk->page_list[nmap_index])) { | |
2397 | ib_umem_release(region); | |
2398 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | |
2399 | stag_index); | |
2400 | nes_debug(NES_DBG_MR, "Invalid Buffer Size\n"); | |
2401 | ibmr = ERR_PTR(-EINVAL); | |
2402 | kfree(nesmr); | |
2403 | goto reg_user_mr_err; | |
2404 | } | |
2405 | ||
2406 | region_length += sg_dma_len(&chunk->page_list[nmap_index]); | |
2407 | chunk_pages = sg_dma_len(&chunk->page_list[nmap_index]) >> 12; | |
2408 | region_length -= skip_pages << 12; | |
2409 | for (page_index=skip_pages; page_index < chunk_pages; page_index++) { | |
2410 | skip_pages = 0; | |
2411 | if ((page_count!=0)&&(page_count<<12)-(region->offset&(4096-1))>=region->length) | |
2412 | goto enough_pages; | |
2413 | if ((page_count&0x01FF) == 0) { | |
24797a34 | 2414 | if (page_count >= 1024 * 512) { |
3c2d774c | 2415 | ib_umem_release(region); |
3c2d774c GS |
2416 | nes_free_resource(nesadapter, |
2417 | nesadapter->allocated_mrs, stag_index); | |
2418 | kfree(nesmr); | |
2419 | ibmr = ERR_PTR(-E2BIG); | |
2420 | goto reg_user_mr_err; | |
2421 | } | |
2422 | if (root_pbl_index == 1) { | |
2423 | root_vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, | |
2424 | 8192, &root_vpbl.pbl_pbase); | |
2425 | nes_debug(NES_DBG_MR, "Allocating root PBL, va = %p, pa = 0x%08X\n", | |
2426 | root_vpbl.pbl_vbase, (unsigned int)root_vpbl.pbl_pbase); | |
2427 | if (!root_vpbl.pbl_vbase) { | |
2428 | ib_umem_release(region); | |
2429 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | |
2430 | vpbl.pbl_pbase); | |
2431 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | |
2432 | stag_index); | |
2433 | kfree(nesmr); | |
2434 | ibmr = ERR_PTR(-ENOMEM); | |
2435 | goto reg_user_mr_err; | |
2436 | } | |
2437 | root_vpbl.leaf_vpbl = kzalloc(sizeof(*root_vpbl.leaf_vpbl)*1024, | |
2438 | GFP_KERNEL); | |
2439 | if (!root_vpbl.leaf_vpbl) { | |
2440 | ib_umem_release(region); | |
2441 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | |
2442 | root_vpbl.pbl_pbase); | |
2443 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | |
2444 | vpbl.pbl_pbase); | |
2445 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | |
2446 | stag_index); | |
2447 | kfree(nesmr); | |
2448 | ibmr = ERR_PTR(-ENOMEM); | |
2449 | goto reg_user_mr_err; | |
2450 | } | |
2451 | root_vpbl.pbl_vbase[0].pa_low = | |
2452 | cpu_to_le32((u32)vpbl.pbl_pbase); | |
2453 | root_vpbl.pbl_vbase[0].pa_high = | |
2454 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32))); | |
2455 | root_vpbl.leaf_vpbl[0] = vpbl; | |
2456 | } | |
2457 | vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096, | |
2458 | &vpbl.pbl_pbase); | |
2459 | nes_debug(NES_DBG_MR, "Allocating leaf PBL, va = %p, pa = 0x%08X\n", | |
2460 | vpbl.pbl_vbase, (unsigned int)vpbl.pbl_pbase); | |
2461 | if (!vpbl.pbl_vbase) { | |
2462 | ib_umem_release(region); | |
2463 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | |
2464 | ibmr = ERR_PTR(-ENOMEM); | |
2465 | kfree(nesmr); | |
2466 | goto reg_user_mr_err; | |
2467 | } | |
2468 | if (1 <= root_pbl_index) { | |
2469 | root_vpbl.pbl_vbase[root_pbl_index].pa_low = | |
2470 | cpu_to_le32((u32)vpbl.pbl_pbase); | |
2471 | root_vpbl.pbl_vbase[root_pbl_index].pa_high = | |
2472 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase)>>32))); | |
2473 | root_vpbl.leaf_vpbl[root_pbl_index] = vpbl; | |
2474 | } | |
2475 | root_pbl_index++; | |
2476 | cur_pbl_index = 0; | |
2477 | } | |
2478 | if (single_page) { | |
2479 | if (page_count != 0) { | |
2480 | if ((last_dma_addr+4096) != | |
2481 | (sg_dma_address(&chunk->page_list[nmap_index])+ | |
2482 | (page_index*4096))) | |
2483 | single_page = 0; | |
2484 | last_dma_addr = sg_dma_address(&chunk->page_list[nmap_index])+ | |
2485 | (page_index*4096); | |
2486 | } else { | |
2487 | first_dma_addr = sg_dma_address(&chunk->page_list[nmap_index])+ | |
2488 | (page_index*4096); | |
2489 | last_dma_addr = first_dma_addr; | |
2490 | } | |
2491 | } | |
2492 | ||
2493 | vpbl.pbl_vbase[cur_pbl_index].pa_low = | |
2494 | cpu_to_le32((u32)(sg_dma_address(&chunk->page_list[nmap_index])+ | |
2495 | (page_index*4096))); | |
2496 | vpbl.pbl_vbase[cur_pbl_index].pa_high = | |
2497 | cpu_to_le32((u32)((((u64)(sg_dma_address(&chunk->page_list[nmap_index])+ | |
2498 | (page_index*4096))) >> 32))); | |
2499 | cur_pbl_index++; | |
2500 | page_count++; | |
2501 | } | |
2502 | } | |
2503 | } | |
2504 | enough_pages: | |
2505 | nes_debug(NES_DBG_MR, "calculating stag, stag_index=0x%08x, driver_key=0x%08x," | |
2506 | " stag_key=0x%08x\n", | |
2507 | stag_index, driver_key, stag_key); | |
2508 | stag = stag_index << 8; | |
2509 | stag |= driver_key; | |
2510 | stag += (u32)stag_key; | |
3c2d774c GS |
2511 | |
2512 | iova_start = virt; | |
2513 | /* Make the leaf PBL the root if only one PBL */ | |
2514 | if (root_pbl_index == 1) { | |
2515 | root_vpbl.pbl_pbase = vpbl.pbl_pbase; | |
2516 | } | |
2517 | ||
2518 | if (single_page) { | |
2519 | pbl_count = 0; | |
2520 | } else { | |
2521 | pbl_count = root_pbl_index; | |
2522 | first_dma_addr = 0; | |
2523 | } | |
2524 | nes_debug(NES_DBG_MR, "Registering STag 0x%08X, VA = 0x%08X, length = 0x%08X," | |
2525 | " index = 0x%08X, region->length=0x%08llx, pbl_count = %u\n", | |
2526 | stag, (unsigned int)iova_start, | |
2527 | (unsigned int)region_length, stag_index, | |
2528 | (unsigned long long)region->length, pbl_count); | |
0145f341 DW |
2529 | ret = nes_reg_mr(nesdev, nespd, stag, region->length, &root_vpbl, |
2530 | first_dma_addr, pbl_count, (u16)cur_pbl_index, acc, | |
2531 | &iova_start, &nesmr->pbls_used, &nesmr->pbl_4k); | |
3c2d774c GS |
2532 | |
2533 | nes_debug(NES_DBG_MR, "ret=%d\n", ret); | |
2534 | ||
2535 | if (ret == 0) { | |
2536 | nesmr->ibmr.rkey = stag; | |
2537 | nesmr->ibmr.lkey = stag; | |
2538 | nesmr->mode = IWNES_MEMREG_TYPE_MEM; | |
2539 | ibmr = &nesmr->ibmr; | |
3c2d774c GS |
2540 | } else { |
2541 | ib_umem_release(region); | |
2542 | kfree(nesmr); | |
2543 | ibmr = ERR_PTR(-ENOMEM); | |
2544 | } | |
2545 | ||
2546 | reg_user_mr_err: | |
2547 | /* free the resources */ | |
2548 | if (root_pbl_index == 1) { | |
2549 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | |
2550 | vpbl.pbl_pbase); | |
2551 | } else { | |
2552 | for (page_index=0; page_index<root_pbl_index; page_index++) { | |
2553 | pci_free_consistent(nesdev->pcidev, 4096, | |
2554 | root_vpbl.leaf_vpbl[page_index].pbl_vbase, | |
2555 | root_vpbl.leaf_vpbl[page_index].pbl_pbase); | |
2556 | } | |
2557 | kfree(root_vpbl.leaf_vpbl); | |
2558 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | |
2559 | root_vpbl.pbl_pbase); | |
2560 | } | |
2561 | ||
2562 | nes_debug(NES_DBG_MR, "Leaving, ibmr=%p", ibmr); | |
2563 | ||
2564 | return ibmr; | |
3c2d774c GS |
2565 | case IWNES_MEMREG_TYPE_QP: |
2566 | case IWNES_MEMREG_TYPE_CQ: | |
7d9c199a TN |
2567 | if (!region->length) { |
2568 | nes_debug(NES_DBG_MR, "Unable to register zero length region for CQ\n"); | |
2569 | ib_umem_release(region); | |
2570 | return ERR_PTR(-EINVAL); | |
2571 | } | |
3c2d774c GS |
2572 | nespbl = kzalloc(sizeof(*nespbl), GFP_KERNEL); |
2573 | if (!nespbl) { | |
2574 | nes_debug(NES_DBG_MR, "Unable to allocate PBL\n"); | |
2575 | ib_umem_release(region); | |
2576 | return ERR_PTR(-ENOMEM); | |
2577 | } | |
2578 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | |
2579 | if (!nesmr) { | |
2580 | ib_umem_release(region); | |
2581 | kfree(nespbl); | |
2582 | nes_debug(NES_DBG_MR, "Unable to allocate nesmr\n"); | |
2583 | return ERR_PTR(-ENOMEM); | |
2584 | } | |
2585 | nesmr->region = region; | |
2586 | nes_ucontext = to_nesucontext(pd->uobject->context); | |
2587 | pbl_depth = region->length >> 12; | |
2588 | pbl_depth += (region->length & (4096-1)) ? 1 : 0; | |
2589 | nespbl->pbl_size = pbl_depth*sizeof(u64); | |
2590 | if (req.reg_type == IWNES_MEMREG_TYPE_QP) { | |
2591 | nes_debug(NES_DBG_MR, "Attempting to allocate QP PBL memory"); | |
2592 | } else { | |
2593 | nes_debug(NES_DBG_MR, "Attempting to allocate CP PBL memory"); | |
2594 | } | |
2595 | ||
2596 | nes_debug(NES_DBG_MR, " %u bytes, %u entries.\n", | |
2597 | nespbl->pbl_size, pbl_depth); | |
2598 | pbl = pci_alloc_consistent(nesdev->pcidev, nespbl->pbl_size, | |
2599 | &nespbl->pbl_pbase); | |
2600 | if (!pbl) { | |
2601 | ib_umem_release(region); | |
2602 | kfree(nesmr); | |
2603 | kfree(nespbl); | |
2604 | nes_debug(NES_DBG_MR, "Unable to allocate PBL memory\n"); | |
2605 | return ERR_PTR(-ENOMEM); | |
2606 | } | |
2607 | ||
2608 | nespbl->pbl_vbase = (u64 *)pbl; | |
2609 | nespbl->user_base = start; | |
71e0957c | 2610 | nes_debug(NES_DBG_MR, "Allocated PBL memory, %u bytes, pbl_pbase=%lx," |
3c2d774c | 2611 | " pbl_vbase=%p user_base=0x%lx\n", |
71e0957c RD |
2612 | nespbl->pbl_size, (unsigned long) nespbl->pbl_pbase, |
2613 | (void *) nespbl->pbl_vbase, nespbl->user_base); | |
3c2d774c GS |
2614 | |
2615 | list_for_each_entry(chunk, ®ion->chunk_list, list) { | |
2616 | for (nmap_index = 0; nmap_index < chunk->nmap; ++nmap_index) { | |
2617 | chunk_pages = sg_dma_len(&chunk->page_list[nmap_index]) >> 12; | |
2618 | chunk_pages += (sg_dma_len(&chunk->page_list[nmap_index]) & (4096-1)) ? 1 : 0; | |
2619 | nespbl->page = sg_page(&chunk->page_list[0]); | |
2620 | for (page_index=0; page_index<chunk_pages; page_index++) { | |
2621 | ((__le32 *)pbl)[0] = cpu_to_le32((u32) | |
2622 | (sg_dma_address(&chunk->page_list[nmap_index])+ | |
2623 | (page_index*4096))); | |
2624 | ((__le32 *)pbl)[1] = cpu_to_le32(((u64) | |
2625 | (sg_dma_address(&chunk->page_list[nmap_index])+ | |
2626 | (page_index*4096)))>>32); | |
2627 | nes_debug(NES_DBG_MR, "pbl=%p, *pbl=0x%016llx, 0x%08x%08x\n", pbl, | |
2628 | (unsigned long long)*pbl, | |
2629 | le32_to_cpu(((__le32 *)pbl)[1]), le32_to_cpu(((__le32 *)pbl)[0])); | |
2630 | pbl++; | |
2631 | } | |
2632 | } | |
2633 | } | |
2634 | if (req.reg_type == IWNES_MEMREG_TYPE_QP) { | |
2635 | list_add_tail(&nespbl->list, &nes_ucontext->qp_reg_mem_list); | |
2636 | } else { | |
2637 | list_add_tail(&nespbl->list, &nes_ucontext->cq_reg_mem_list); | |
2638 | } | |
2639 | nesmr->ibmr.rkey = -1; | |
2640 | nesmr->ibmr.lkey = -1; | |
2641 | nesmr->mode = req.reg_type; | |
2642 | return &nesmr->ibmr; | |
3c2d774c GS |
2643 | } |
2644 | ||
e2e435f2 | 2645 | ib_umem_release(region); |
3c2d774c GS |
2646 | return ERR_PTR(-ENOSYS); |
2647 | } | |
2648 | ||
2649 | ||
2650 | /** | |
2651 | * nes_dereg_mr | |
2652 | */ | |
2653 | static int nes_dereg_mr(struct ib_mr *ib_mr) | |
2654 | { | |
2655 | struct nes_mr *nesmr = to_nesmr(ib_mr); | |
2656 | struct nes_vnic *nesvnic = to_nesvnic(ib_mr->device); | |
2657 | struct nes_device *nesdev = nesvnic->nesdev; | |
2658 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
2659 | struct nes_hw_cqp_wqe *cqp_wqe; | |
2660 | struct nes_cqp_request *cqp_request; | |
2661 | unsigned long flags; | |
2662 | int ret; | |
2663 | u16 major_code; | |
2664 | u16 minor_code; | |
2665 | ||
2666 | if (nesmr->region) { | |
2667 | ib_umem_release(nesmr->region); | |
2668 | } | |
2669 | if (nesmr->mode != IWNES_MEMREG_TYPE_MEM) { | |
2670 | kfree(nesmr); | |
2671 | return 0; | |
2672 | } | |
2673 | ||
2674 | /* Deallocate the region with the adapter */ | |
2675 | ||
2676 | cqp_request = nes_get_cqp_request(nesdev); | |
2677 | if (cqp_request == NULL) { | |
2678 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | |
2679 | return -ENOMEM; | |
2680 | } | |
2681 | cqp_request->waiting = 1; | |
2682 | cqp_wqe = &cqp_request->cqp_wqe; | |
2683 | ||
3c2d774c GS |
2684 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); |
2685 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, | |
2686 | NES_CQP_DEALLOCATE_STAG | NES_CQP_STAG_VA_TO | | |
2687 | NES_CQP_STAG_DEALLOC_PBLS | NES_CQP_STAG_MR); | |
2688 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, ib_mr->rkey); | |
2689 | ||
2690 | atomic_set(&cqp_request->refcount, 2); | |
8294f297 | 2691 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
2692 | |
2693 | /* Wait for CQP */ | |
2694 | nes_debug(NES_DBG_MR, "Waiting for deallocate STag 0x%08X completed\n", ib_mr->rkey); | |
2695 | ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0), | |
2696 | NES_EVENT_TIMEOUT); | |
2697 | nes_debug(NES_DBG_MR, "Deallocate STag 0x%08X completed, wait_event_timeout ret = %u," | |
2698 | " CQP Major:Minor codes = 0x%04X:0x%04X\n", | |
2699 | ib_mr->rkey, ret, cqp_request->major_code, cqp_request->minor_code); | |
2700 | ||
3c2d774c GS |
2701 | major_code = cqp_request->major_code; |
2702 | minor_code = cqp_request->minor_code; | |
1ff66e8c RD |
2703 | |
2704 | nes_put_cqp_request(nesdev, cqp_request); | |
2705 | ||
3c2d774c GS |
2706 | if (!ret) { |
2707 | nes_debug(NES_DBG_MR, "Timeout waiting to destroy STag," | |
2708 | " ib_mr=%p, rkey = 0x%08X\n", | |
2709 | ib_mr, ib_mr->rkey); | |
2710 | return -ETIME; | |
2711 | } else if (major_code) { | |
2712 | nes_debug(NES_DBG_MR, "Error (0x%04X:0x%04X) while attempting" | |
2713 | " to destroy STag, ib_mr=%p, rkey = 0x%08X\n", | |
2714 | major_code, minor_code, ib_mr, ib_mr->rkey); | |
2715 | return -EIO; | |
dae5d13a DW |
2716 | } |
2717 | ||
2718 | if (nesmr->pbls_used != 0) { | |
2719 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | |
2720 | if (nesmr->pbl_4k) { | |
2721 | nesadapter->free_4kpbl += nesmr->pbls_used; | |
2722 | if (nesadapter->free_4kpbl > nesadapter->max_4kpbl) | |
2723 | printk(KERN_ERR PFX "free 4KB PBLs(%u) has " | |
2724 | "exceeded the max(%u)\n", | |
2725 | nesadapter->free_4kpbl, | |
2726 | nesadapter->max_4kpbl); | |
2727 | } else { | |
2728 | nesadapter->free_256pbl += nesmr->pbls_used; | |
2729 | if (nesadapter->free_256pbl > nesadapter->max_256pbl) | |
2730 | printk(KERN_ERR PFX "free 256B PBLs(%u) has " | |
2731 | "exceeded the max(%u)\n", | |
2732 | nesadapter->free_256pbl, | |
2733 | nesadapter->max_256pbl); | |
2734 | } | |
2735 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | |
2736 | } | |
2737 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | |
2738 | (ib_mr->rkey & 0x0fffff00) >> 8); | |
2739 | ||
2740 | kfree(nesmr); | |
2741 | ||
2742 | return 0; | |
3c2d774c GS |
2743 | } |
2744 | ||
2745 | ||
2746 | /** | |
2747 | * show_rev | |
2748 | */ | |
f4e91eb4 TJ |
2749 | static ssize_t show_rev(struct device *dev, struct device_attribute *attr, |
2750 | char *buf) | |
3c2d774c GS |
2751 | { |
2752 | struct nes_ib_device *nesibdev = | |
f4e91eb4 | 2753 | container_of(dev, struct nes_ib_device, ibdev.dev); |
3c2d774c GS |
2754 | struct nes_vnic *nesvnic = nesibdev->nesvnic; |
2755 | ||
2756 | nes_debug(NES_DBG_INIT, "\n"); | |
2757 | return sprintf(buf, "%x\n", nesvnic->nesdev->nesadapter->hw_rev); | |
2758 | } | |
2759 | ||
2760 | ||
2761 | /** | |
2762 | * show_fw_ver | |
2763 | */ | |
f4e91eb4 TJ |
2764 | static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, |
2765 | char *buf) | |
3c2d774c GS |
2766 | { |
2767 | struct nes_ib_device *nesibdev = | |
f4e91eb4 | 2768 | container_of(dev, struct nes_ib_device, ibdev.dev); |
3c2d774c GS |
2769 | struct nes_vnic *nesvnic = nesibdev->nesvnic; |
2770 | ||
2771 | nes_debug(NES_DBG_INIT, "\n"); | |
0e4562da CT |
2772 | return sprintf(buf, "%u.%u\n", |
2773 | (nesvnic->nesdev->nesadapter->firmware_version >> 16), | |
2774 | (nesvnic->nesdev->nesadapter->firmware_version & 0x000000ff)); | |
3c2d774c GS |
2775 | } |
2776 | ||
2777 | ||
2778 | /** | |
2779 | * show_hca | |
2780 | */ | |
f4e91eb4 TJ |
2781 | static ssize_t show_hca(struct device *dev, struct device_attribute *attr, |
2782 | char *buf) | |
3c2d774c GS |
2783 | { |
2784 | nes_debug(NES_DBG_INIT, "\n"); | |
2785 | return sprintf(buf, "NES020\n"); | |
2786 | } | |
2787 | ||
2788 | ||
2789 | /** | |
2790 | * show_board | |
2791 | */ | |
f4e91eb4 TJ |
2792 | static ssize_t show_board(struct device *dev, struct device_attribute *attr, |
2793 | char *buf) | |
3c2d774c GS |
2794 | { |
2795 | nes_debug(NES_DBG_INIT, "\n"); | |
2796 | return sprintf(buf, "%.*s\n", 32, "NES020 Board ID"); | |
2797 | } | |
2798 | ||
2799 | ||
f4e91eb4 TJ |
2800 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
2801 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
2802 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
2803 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
3c2d774c | 2804 | |
f4e91eb4 TJ |
2805 | static struct device_attribute *nes_dev_attributes[] = { |
2806 | &dev_attr_hw_rev, | |
2807 | &dev_attr_fw_ver, | |
2808 | &dev_attr_hca_type, | |
2809 | &dev_attr_board_id | |
3c2d774c GS |
2810 | }; |
2811 | ||
2812 | ||
2813 | /** | |
2814 | * nes_query_qp | |
2815 | */ | |
2816 | static int nes_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
2817 | int attr_mask, struct ib_qp_init_attr *init_attr) | |
2818 | { | |
2819 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
2820 | ||
2821 | nes_debug(NES_DBG_QP, "\n"); | |
2822 | ||
2823 | attr->qp_access_flags = 0; | |
2824 | attr->cap.max_send_wr = nesqp->hwqp.sq_size; | |
2825 | attr->cap.max_recv_wr = nesqp->hwqp.rq_size; | |
2826 | attr->cap.max_recv_sge = 1; | |
eadde3a1 CT |
2827 | if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) |
2828 | attr->cap.max_inline_data = 0; | |
2829 | else | |
2830 | attr->cap.max_inline_data = 64; | |
3c2d774c GS |
2831 | |
2832 | init_attr->event_handler = nesqp->ibqp.event_handler; | |
2833 | init_attr->qp_context = nesqp->ibqp.qp_context; | |
2834 | init_attr->send_cq = nesqp->ibqp.send_cq; | |
2835 | init_attr->recv_cq = nesqp->ibqp.recv_cq; | |
2836 | init_attr->srq = nesqp->ibqp.srq = nesqp->ibqp.srq; | |
2837 | init_attr->cap = attr->cap; | |
2838 | ||
2839 | return 0; | |
2840 | } | |
2841 | ||
2842 | ||
2843 | /** | |
2844 | * nes_hw_modify_qp | |
2845 | */ | |
2846 | int nes_hw_modify_qp(struct nes_device *nesdev, struct nes_qp *nesqp, | |
8b1c9dc4 | 2847 | u32 next_iwarp_state, u32 termlen, u32 wait_completion) |
3c2d774c GS |
2848 | { |
2849 | struct nes_hw_cqp_wqe *cqp_wqe; | |
2850 | /* struct iw_cm_id *cm_id = nesqp->cm_id; */ | |
2851 | /* struct iw_cm_event cm_event; */ | |
2852 | struct nes_cqp_request *cqp_request; | |
3c2d774c GS |
2853 | int ret; |
2854 | u16 major_code; | |
2855 | ||
2856 | nes_debug(NES_DBG_MOD_QP, "QP%u, refcount=%d\n", | |
2857 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount)); | |
2858 | ||
2859 | cqp_request = nes_get_cqp_request(nesdev); | |
2860 | if (cqp_request == NULL) { | |
2861 | nes_debug(NES_DBG_MOD_QP, "Failed to get a cqp_request.\n"); | |
2862 | return -ENOMEM; | |
2863 | } | |
2864 | if (wait_completion) { | |
2865 | cqp_request->waiting = 1; | |
2866 | } else { | |
2867 | cqp_request->waiting = 0; | |
2868 | } | |
2869 | cqp_wqe = &cqp_request->cqp_wqe; | |
2870 | ||
2871 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, | |
2872 | NES_CQP_MODIFY_QP | NES_CQP_QP_TYPE_IWARP | next_iwarp_state); | |
2873 | nes_debug(NES_DBG_MOD_QP, "using next_iwarp_state=%08x, wqe_words=%08x\n", | |
2874 | next_iwarp_state, le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX])); | |
2875 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | |
2876 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id); | |
2877 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, (u64)nesqp->nesqp_context_pbase); | |
2878 | ||
8b1c9dc4 DW |
2879 | /* If sending a terminate message, fill in the length (in words) */ |
2880 | if (((next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK) == NES_CQP_QP_IWARP_STATE_TERMINATE) && | |
2881 | !(next_iwarp_state & NES_CQP_QP_TERM_DONT_SEND_TERM_MSG)) { | |
2882 | termlen = ((termlen + 3) >> 2) << NES_CQP_OP_TERMLEN_SHIFT; | |
2883 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_NEW_MSS_IDX, termlen); | |
2884 | } | |
2885 | ||
3c2d774c | 2886 | atomic_set(&cqp_request->refcount, 2); |
8294f297 | 2887 | nes_post_cqp_request(nesdev, cqp_request); |
3c2d774c GS |
2888 | |
2889 | /* Wait for CQP */ | |
2890 | if (wait_completion) { | |
2891 | /* nes_debug(NES_DBG_MOD_QP, "Waiting for modify iWARP QP%u to complete.\n", | |
2892 | nesqp->hwqp.qp_id); */ | |
2893 | ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0), | |
2894 | NES_EVENT_TIMEOUT); | |
2895 | nes_debug(NES_DBG_MOD_QP, "Modify iwarp QP%u completed, wait_event_timeout ret=%u, " | |
2896 | "CQP Major:Minor codes = 0x%04X:0x%04X.\n", | |
2897 | nesqp->hwqp.qp_id, ret, cqp_request->major_code, cqp_request->minor_code); | |
2898 | major_code = cqp_request->major_code; | |
2899 | if (major_code) { | |
2900 | nes_debug(NES_DBG_MOD_QP, "Modify iwarp QP%u failed" | |
2901 | "CQP Major:Minor codes = 0x%04X:0x%04X, intended next state = 0x%08X.\n", | |
2902 | nesqp->hwqp.qp_id, cqp_request->major_code, | |
2903 | cqp_request->minor_code, next_iwarp_state); | |
2904 | } | |
1ff66e8c RD |
2905 | |
2906 | nes_put_cqp_request(nesdev, cqp_request); | |
2907 | ||
3c2d774c GS |
2908 | if (!ret) |
2909 | return -ETIME; | |
2910 | else if (major_code) | |
2911 | return -EIO; | |
2912 | else | |
2913 | return 0; | |
2914 | } else { | |
2915 | return 0; | |
2916 | } | |
2917 | } | |
2918 | ||
2919 | ||
2920 | /** | |
2921 | * nes_modify_qp | |
2922 | */ | |
2923 | int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
2924 | int attr_mask, struct ib_udata *udata) | |
2925 | { | |
2926 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
2927 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | |
2928 | struct nes_device *nesdev = nesvnic->nesdev; | |
2929 | /* u32 cqp_head; */ | |
2930 | /* u32 counter; */ | |
2931 | u32 next_iwarp_state = 0; | |
2932 | int err; | |
2933 | unsigned long qplockflags; | |
2934 | int ret; | |
2935 | u16 original_last_aeq; | |
2936 | u8 issue_modify_qp = 0; | |
3c2d774c GS |
2937 | u8 dont_wait = 0; |
2938 | ||
2939 | nes_debug(NES_DBG_MOD_QP, "QP%u: QP State=%u, cur QP State=%u," | |
2940 | " iwarp_state=0x%X, refcount=%d\n", | |
2941 | nesqp->hwqp.qp_id, attr->qp_state, nesqp->ibqp_state, | |
2942 | nesqp->iwarp_state, atomic_read(&nesqp->refcount)); | |
2943 | ||
3c2d774c GS |
2944 | spin_lock_irqsave(&nesqp->lock, qplockflags); |
2945 | ||
2946 | nes_debug(NES_DBG_MOD_QP, "QP%u: hw_iwarp_state=0x%X, hw_tcp_state=0x%X," | |
2947 | " QP Access Flags=0x%X, attr_mask = 0x%0x\n", | |
2948 | nesqp->hwqp.qp_id, nesqp->hw_iwarp_state, | |
2949 | nesqp->hw_tcp_state, attr->qp_access_flags, attr_mask); | |
2950 | ||
2951 | if (attr_mask & IB_QP_STATE) { | |
2952 | switch (attr->qp_state) { | |
2953 | case IB_QPS_INIT: | |
2954 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = init\n", | |
2955 | nesqp->hwqp.qp_id); | |
2956 | if (nesqp->iwarp_state > (u32)NES_CQP_QP_IWARP_STATE_IDLE) { | |
2957 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
2958 | return -EINVAL; |
2959 | } | |
2960 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_IDLE; | |
2961 | issue_modify_qp = 1; | |
2962 | break; | |
2963 | case IB_QPS_RTR: | |
2964 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = rtr\n", | |
2965 | nesqp->hwqp.qp_id); | |
2966 | if (nesqp->iwarp_state>(u32)NES_CQP_QP_IWARP_STATE_IDLE) { | |
2967 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
2968 | return -EINVAL; |
2969 | } | |
2970 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_IDLE; | |
2971 | issue_modify_qp = 1; | |
2972 | break; | |
2973 | case IB_QPS_RTS: | |
2974 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = rts\n", | |
2975 | nesqp->hwqp.qp_id); | |
2976 | if (nesqp->iwarp_state>(u32)NES_CQP_QP_IWARP_STATE_RTS) { | |
2977 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
2978 | return -EINVAL; |
2979 | } | |
2980 | if (nesqp->cm_id == NULL) { | |
2981 | nes_debug(NES_DBG_MOD_QP, "QP%u: Failing attempt to move QP to RTS without a CM_ID. \n", | |
2982 | nesqp->hwqp.qp_id ); | |
2983 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
2984 | return -EINVAL; |
2985 | } | |
2986 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_RTS; | |
2987 | if (nesqp->iwarp_state != NES_CQP_QP_IWARP_STATE_RTS) | |
2988 | next_iwarp_state |= NES_CQP_QP_CONTEXT_VALID | | |
2989 | NES_CQP_QP_ARP_VALID | NES_CQP_QP_ORD_VALID; | |
2990 | issue_modify_qp = 1; | |
2991 | nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_ESTABLISHED; | |
2992 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_RTS; | |
2993 | nesqp->hte_added = 1; | |
2994 | break; | |
2995 | case IB_QPS_SQD: | |
2996 | issue_modify_qp = 1; | |
2997 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state=closing. SQ head=%u, SQ tail=%u\n", | |
2998 | nesqp->hwqp.qp_id, nesqp->hwqp.sq_head, nesqp->hwqp.sq_tail); | |
2999 | if (nesqp->iwarp_state == (u32)NES_CQP_QP_IWARP_STATE_CLOSING) { | |
3000 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
3001 | return 0; |
3002 | } else { | |
3003 | if (nesqp->iwarp_state > (u32)NES_CQP_QP_IWARP_STATE_CLOSING) { | |
3004 | nes_debug(NES_DBG_MOD_QP, "QP%u: State change to closing" | |
3005 | " ignored due to current iWARP state\n", | |
3006 | nesqp->hwqp.qp_id); | |
3007 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
3008 | return -EINVAL; |
3009 | } | |
3010 | if (nesqp->hw_iwarp_state != NES_AEQE_IWARP_STATE_RTS) { | |
3011 | nes_debug(NES_DBG_MOD_QP, "QP%u: State change to closing" | |
3012 | " already done based on hw state.\n", | |
3013 | nesqp->hwqp.qp_id); | |
3014 | issue_modify_qp = 0; | |
3c2d774c GS |
3015 | } |
3016 | switch (nesqp->hw_iwarp_state) { | |
3017 | case NES_AEQE_IWARP_STATE_CLOSING: | |
3018 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING; | |
d5fb476a | 3019 | break; |
3c2d774c GS |
3020 | case NES_AEQE_IWARP_STATE_TERMINATE: |
3021 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_TERMINATE; | |
3022 | break; | |
3023 | case NES_AEQE_IWARP_STATE_ERROR: | |
3024 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR; | |
3025 | break; | |
3026 | default: | |
3027 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING; | |
3c2d774c GS |
3028 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING; |
3029 | break; | |
3030 | } | |
3031 | } | |
3032 | break; | |
3033 | case IB_QPS_SQE: | |
3034 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = terminate\n", | |
3035 | nesqp->hwqp.qp_id); | |
3036 | if (nesqp->iwarp_state>=(u32)NES_CQP_QP_IWARP_STATE_TERMINATE) { | |
3037 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
3038 | return -EINVAL; |
3039 | } | |
3040 | /* next_iwarp_state = (NES_CQP_QP_IWARP_STATE_TERMINATE | 0x02000000); */ | |
3041 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_TERMINATE; | |
3042 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_TERMINATE; | |
3043 | issue_modify_qp = 1; | |
3c2d774c GS |
3044 | break; |
3045 | case IB_QPS_ERR: | |
3046 | case IB_QPS_RESET: | |
3047 | if (nesqp->iwarp_state == (u32)NES_CQP_QP_IWARP_STATE_ERROR) { | |
3048 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
3049 | return -EINVAL; |
3050 | } | |
3051 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = error\n", | |
3052 | nesqp->hwqp.qp_id); | |
8b1c9dc4 DW |
3053 | if (nesqp->term_flags) |
3054 | del_timer(&nesqp->terminate_timer); | |
3055 | ||
3c2d774c GS |
3056 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR; |
3057 | /* next_iwarp_state = (NES_CQP_QP_IWARP_STATE_TERMINATE | 0x02000000); */ | |
3058 | if (nesqp->hte_added) { | |
3059 | nes_debug(NES_DBG_MOD_QP, "set CQP_QP_DEL_HTE\n"); | |
3060 | next_iwarp_state |= NES_CQP_QP_DEL_HTE; | |
3061 | nesqp->hte_added = 0; | |
3062 | } | |
3063 | if ((nesqp->hw_tcp_state > NES_AEQE_TCP_STATE_CLOSED) && | |
cd6860eb | 3064 | (nesdev->iw_status) && |
3c2d774c GS |
3065 | (nesqp->hw_tcp_state != NES_AEQE_TCP_STATE_TIME_WAIT)) { |
3066 | next_iwarp_state |= NES_CQP_QP_RESET; | |
3c2d774c GS |
3067 | } else { |
3068 | nes_debug(NES_DBG_MOD_QP, "QP%u NOT setting NES_CQP_QP_RESET since TCP state = %u\n", | |
3069 | nesqp->hwqp.qp_id, nesqp->hw_tcp_state); | |
3070 | dont_wait = 1; | |
3071 | } | |
3072 | issue_modify_qp = 1; | |
3073 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_ERROR; | |
3074 | break; | |
3075 | default: | |
3076 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3c2d774c GS |
3077 | return -EINVAL; |
3078 | break; | |
3079 | } | |
3080 | ||
3081 | nesqp->ibqp_state = attr->qp_state; | |
a67b078c TN |
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); | |
3c2d774c GS |
3085 | } |
3086 | ||
3087 | if (attr_mask & IB_QP_ACCESS_FLAGS) { | |
3088 | if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE) { | |
3089 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_WRITE_EN | | |
3090 | NES_QPCONTEXT_MISC_RDMA_READ_EN); | |
3091 | issue_modify_qp = 1; | |
3092 | } | |
3093 | if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE) { | |
3094 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_WRITE_EN); | |
3095 | issue_modify_qp = 1; | |
3096 | } | |
3097 | if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ) { | |
3098 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_READ_EN); | |
3099 | issue_modify_qp = 1; | |
3100 | } | |
3101 | if (attr->qp_access_flags & IB_ACCESS_MW_BIND) { | |
3102 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_WBIND_EN); | |
3103 | issue_modify_qp = 1; | |
3104 | } | |
3105 | ||
3106 | if (nesqp->user_mode) { | |
3107 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_WRITE_EN | | |
3108 | NES_QPCONTEXT_MISC_RDMA_READ_EN); | |
3109 | issue_modify_qp = 1; | |
3110 | } | |
3111 | } | |
3112 | ||
3113 | original_last_aeq = nesqp->last_aeq; | |
3114 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3115 | ||
3116 | nes_debug(NES_DBG_MOD_QP, "issue_modify_qp=%u\n", issue_modify_qp); | |
3117 | ||
3118 | ret = 0; | |
3119 | ||
3120 | ||
3121 | if (issue_modify_qp) { | |
3122 | nes_debug(NES_DBG_MOD_QP, "call nes_hw_modify_qp\n"); | |
8b1c9dc4 | 3123 | ret = nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 1); |
3c2d774c GS |
3124 | if (ret) |
3125 | nes_debug(NES_DBG_MOD_QP, "nes_hw_modify_qp (next_iwarp_state = 0x%08X)" | |
3126 | " failed for QP%u.\n", | |
3127 | next_iwarp_state, nesqp->hwqp.qp_id); | |
3128 | ||
3129 | } | |
3130 | ||
3131 | if ((issue_modify_qp) && (nesqp->ibqp_state > IB_QPS_RTS)) { | |
3132 | nes_debug(NES_DBG_MOD_QP, "QP%u Issued ModifyQP refcount (%d)," | |
3133 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | |
3134 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3135 | original_last_aeq, nesqp->last_aeq); | |
3136 | if ((!ret) || | |
3137 | ((original_last_aeq != NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE) && | |
3138 | (ret))) { | |
3139 | if (dont_wait) { | |
3140 | if (nesqp->cm_id && nesqp->hw_tcp_state != 0) { | |
3141 | nes_debug(NES_DBG_MOD_QP, "QP%u Queuing fake disconnect for QP refcount (%d)," | |
3142 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | |
3143 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3144 | original_last_aeq, nesqp->last_aeq); | |
3145 | /* this one is for the cm_disconnect thread */ | |
3c2d774c GS |
3146 | spin_lock_irqsave(&nesqp->lock, qplockflags); |
3147 | nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; | |
3148 | nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT; | |
3149 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3150 | nes_cm_disconn(nesqp); | |
3151 | } else { | |
3152 | nes_debug(NES_DBG_MOD_QP, "QP%u No fake disconnect, QP refcount=%d\n", | |
3153 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount)); | |
3c2d774c GS |
3154 | } |
3155 | } else { | |
3156 | spin_lock_irqsave(&nesqp->lock, qplockflags); | |
3157 | if (nesqp->cm_id) { | |
3158 | /* These two are for the timer thread */ | |
3159 | if (atomic_inc_return(&nesqp->close_timer_started) == 1) { | |
3c2d774c GS |
3160 | nesqp->cm_id->add_ref(nesqp->cm_id); |
3161 | nes_debug(NES_DBG_MOD_QP, "QP%u Not decrementing QP refcount (%d)," | |
3162 | " need ae to finish up, original_last_aeq = 0x%04X." | |
3163 | " last_aeq = 0x%04X, scheduling timer.\n", | |
3164 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3165 | original_last_aeq, nesqp->last_aeq); | |
3166 | schedule_nes_timer(nesqp->cm_node, (struct sk_buff *) nesqp, NES_TIMER_TYPE_CLOSE, 1, 0); | |
3167 | } | |
3168 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3169 | } else { | |
3170 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | |
3171 | nes_debug(NES_DBG_MOD_QP, "QP%u Not decrementing QP refcount (%d)," | |
3172 | " need ae to finish up, original_last_aeq = 0x%04X." | |
3173 | " last_aeq = 0x%04X.\n", | |
3174 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3175 | original_last_aeq, nesqp->last_aeq); | |
3176 | } | |
3177 | } | |
3178 | } else { | |
3179 | nes_debug(NES_DBG_MOD_QP, "QP%u Decrementing QP refcount (%d), No ae to finish up," | |
3180 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | |
3181 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | |
3182 | original_last_aeq, nesqp->last_aeq); | |
3c2d774c GS |
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 | ||
3191 | err = 0; | |
3192 | ||
3193 | nes_debug(NES_DBG_MOD_QP, "QP%u Leaving, refcount=%d\n", | |
3194 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount)); | |
3195 | ||
3196 | return err; | |
3197 | } | |
3198 | ||
3199 | ||
3200 | /** | |
3201 | * nes_muticast_attach | |
3202 | */ | |
3203 | static int nes_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
3204 | { | |
3205 | nes_debug(NES_DBG_INIT, "\n"); | |
3206 | return -ENOSYS; | |
3207 | } | |
3208 | ||
3209 | ||
3210 | /** | |
3211 | * nes_multicast_detach | |
3212 | */ | |
3213 | static int nes_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
3214 | { | |
3215 | nes_debug(NES_DBG_INIT, "\n"); | |
3216 | return -ENOSYS; | |
3217 | } | |
3218 | ||
3219 | ||
3220 | /** | |
3221 | * nes_process_mad | |
3222 | */ | |
3223 | static int nes_process_mad(struct ib_device *ibdev, int mad_flags, | |
3224 | u8 port_num, struct ib_wc *in_wc, struct ib_grh *in_grh, | |
3225 | struct ib_mad *in_mad, struct ib_mad *out_mad) | |
3226 | { | |
3227 | nes_debug(NES_DBG_INIT, "\n"); | |
3228 | return -ENOSYS; | |
3229 | } | |
3230 | ||
3231 | static inline void | |
3232 | fill_wqe_sg_send(struct nes_hw_qp_wqe *wqe, struct ib_send_wr *ib_wr, u32 uselkey) | |
3233 | { | |
3234 | int sge_index; | |
3235 | int total_payload_length = 0; | |
3236 | for (sge_index = 0; sge_index < ib_wr->num_sge; sge_index++) { | |
3237 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_FRAG0_LOW_IDX+(sge_index*4), | |
3238 | ib_wr->sg_list[sge_index].addr); | |
3239 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_LENGTH0_IDX + (sge_index*4), | |
3240 | ib_wr->sg_list[sge_index].length); | |
3241 | if (uselkey) | |
3242 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_STAG0_IDX + (sge_index*4), | |
3243 | (ib_wr->sg_list[sge_index].lkey)); | |
3244 | else | |
3245 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_STAG0_IDX + (sge_index*4), 0); | |
3246 | ||
3247 | total_payload_length += ib_wr->sg_list[sge_index].length; | |
3248 | } | |
3249 | nes_debug(NES_DBG_IW_TX, "UC UC UC, sending total_payload_length=%u \n", | |
3250 | total_payload_length); | |
3251 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX, | |
3252 | total_payload_length); | |
3253 | } | |
3254 | ||
3255 | /** | |
3256 | * nes_post_send | |
3257 | */ | |
3258 | static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr, | |
3259 | struct ib_send_wr **bad_wr) | |
3260 | { | |
3261 | u64 u64temp; | |
3262 | unsigned long flags = 0; | |
3263 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | |
3264 | struct nes_device *nesdev = nesvnic->nesdev; | |
3265 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
3266 | struct nes_hw_qp_wqe *wqe; | |
649fe4ae | 3267 | int err = 0; |
3c2d774c GS |
3268 | u32 qsize = nesqp->hwqp.sq_size; |
3269 | u32 head; | |
649fe4ae CT |
3270 | u32 wqe_misc = 0; |
3271 | u32 wqe_count = 0; | |
3c2d774c | 3272 | u32 counter; |
3c2d774c | 3273 | |
e5dec394 FZ |
3274 | if (nesqp->ibqp_state > IB_QPS_RTS) { |
3275 | err = -EINVAL; | |
3276 | goto out; | |
3277 | } | |
3c2d774c | 3278 | |
5880ff19 | 3279 | spin_lock_irqsave(&nesqp->lock, flags); |
3c2d774c GS |
3280 | |
3281 | head = nesqp->hwqp.sq_head; | |
3282 | ||
3283 | while (ib_wr) { | |
8b1c9dc4 DW |
3284 | /* Check for QP error */ |
3285 | if (nesqp->term_flags) { | |
3286 | err = -EINVAL; | |
3287 | break; | |
3288 | } | |
3289 | ||
3c2d774c GS |
3290 | /* Check for SQ overflow */ |
3291 | if (((head + (2 * qsize) - nesqp->hwqp.sq_tail) % qsize) == (qsize - 1)) { | |
831d06cf | 3292 | err = -ENOMEM; |
3c2d774c GS |
3293 | break; |
3294 | } | |
3295 | ||
3296 | wqe = &nesqp->hwqp.sq_vbase[head]; | |
3297 | /* nes_debug(NES_DBG_IW_TX, "processing sq wqe for QP%u at %p, head = %u.\n", | |
3298 | nesqp->hwqp.qp_id, wqe, head); */ | |
3299 | nes_fill_init_qp_wqe(wqe, nesqp, head); | |
3300 | u64temp = (u64)(ib_wr->wr_id); | |
3301 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, | |
3302 | u64temp); | |
649fe4ae CT |
3303 | switch (ib_wr->opcode) { |
3304 | case IB_WR_SEND: | |
3305 | case IB_WR_SEND_WITH_INV: | |
3306 | if (IB_WR_SEND == ib_wr->opcode) { | |
3307 | if (ib_wr->send_flags & IB_SEND_SOLICITED) | |
3308 | wqe_misc = NES_IWARP_SQ_OP_SENDSE; | |
3309 | else | |
3310 | wqe_misc = NES_IWARP_SQ_OP_SEND; | |
3311 | } else { | |
3312 | if (ib_wr->send_flags & IB_SEND_SOLICITED) | |
3313 | wqe_misc = NES_IWARP_SQ_OP_SENDSEINV; | |
3314 | else | |
3315 | wqe_misc = NES_IWARP_SQ_OP_SENDINV; | |
3c2d774c | 3316 | |
649fe4ae CT |
3317 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_INV_STAG_LOW_IDX, |
3318 | ib_wr->ex.invalidate_rkey); | |
3319 | } | |
3c2d774c | 3320 | |
649fe4ae CT |
3321 | if (ib_wr->num_sge > nesdev->nesadapter->max_sge) { |
3322 | err = -EINVAL; | |
3323 | break; | |
3c2d774c GS |
3324 | } |
3325 | ||
649fe4ae CT |
3326 | if (ib_wr->send_flags & IB_SEND_FENCE) |
3327 | wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE; | |
3328 | ||
3329 | if ((ib_wr->send_flags & IB_SEND_INLINE) && | |
3330 | ((nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) == 0) && | |
3331 | (ib_wr->sg_list[0].length <= 64)) { | |
3332 | memcpy(&wqe->wqe_words[NES_IWARP_SQ_WQE_IMM_DATA_START_IDX], | |
3333 | (void *)(unsigned long)ib_wr->sg_list[0].addr, ib_wr->sg_list[0].length); | |
3334 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX, | |
3335 | ib_wr->sg_list[0].length); | |
3336 | wqe_misc |= NES_IWARP_SQ_WQE_IMM_DATA; | |
3337 | } else { | |
3338 | fill_wqe_sg_send(wqe, ib_wr, 1); | |
3339 | } | |
3340 | ||
3341 | break; | |
3342 | case IB_WR_RDMA_WRITE: | |
3343 | wqe_misc = NES_IWARP_SQ_OP_RDMAW; | |
3344 | if (ib_wr->num_sge > nesdev->nesadapter->max_sge) { | |
3345 | nes_debug(NES_DBG_IW_TX, "Exceeded max sge, ib_wr=%u, max=%u\n", | |
3346 | ib_wr->num_sge, nesdev->nesadapter->max_sge); | |
3347 | err = -EINVAL; | |
3348 | break; | |
3349 | } | |
3350 | ||
3351 | if (ib_wr->send_flags & IB_SEND_FENCE) | |
3352 | wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE; | |
3353 | ||
3354 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_STAG_IDX, | |
3355 | ib_wr->wr.rdma.rkey); | |
3356 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX, | |
3357 | ib_wr->wr.rdma.remote_addr); | |
3358 | ||
3359 | if ((ib_wr->send_flags & IB_SEND_INLINE) && | |
3360 | ((nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) == 0) && | |
3361 | (ib_wr->sg_list[0].length <= 64)) { | |
3362 | memcpy(&wqe->wqe_words[NES_IWARP_SQ_WQE_IMM_DATA_START_IDX], | |
3363 | (void *)(unsigned long)ib_wr->sg_list[0].addr, ib_wr->sg_list[0].length); | |
3364 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX, | |
3365 | ib_wr->sg_list[0].length); | |
3366 | wqe_misc |= NES_IWARP_SQ_WQE_IMM_DATA; | |
3367 | } else { | |
3368 | fill_wqe_sg_send(wqe, ib_wr, 1); | |
3369 | } | |
3370 | ||
3371 | wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX] = | |
3372 | wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX]; | |
3373 | break; | |
3374 | case IB_WR_RDMA_READ: | |
3375 | case IB_WR_RDMA_READ_WITH_INV: | |
3376 | /* iWARP only supports 1 sge for RDMA reads */ | |
3377 | if (ib_wr->num_sge > 1) { | |
3378 | nes_debug(NES_DBG_IW_TX, "Exceeded max sge, ib_wr=%u, max=1\n", | |
3379 | ib_wr->num_sge); | |
3380 | err = -EINVAL; | |
3381 | break; | |
3382 | } | |
3383 | if (ib_wr->opcode == IB_WR_RDMA_READ) { | |
3384 | wqe_misc = NES_IWARP_SQ_OP_RDMAR; | |
3385 | } else { | |
3386 | wqe_misc = NES_IWARP_SQ_OP_RDMAR_LOCINV; | |
3387 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_INV_STAG_LOW_IDX, | |
3388 | ib_wr->ex.invalidate_rkey); | |
3389 | } | |
3390 | ||
3391 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX, | |
3392 | ib_wr->wr.rdma.remote_addr); | |
3393 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_STAG_IDX, | |
3394 | ib_wr->wr.rdma.rkey); | |
3395 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX, | |
3396 | ib_wr->sg_list->length); | |
3397 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_FRAG0_LOW_IDX, | |
3398 | ib_wr->sg_list->addr); | |
3399 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_STAG0_IDX, | |
3400 | ib_wr->sg_list->lkey); | |
3401 | break; | |
3402 | case IB_WR_LOCAL_INV: | |
3403 | wqe_misc = NES_IWARP_SQ_OP_LOCINV; | |
3404 | set_wqe_32bit_value(wqe->wqe_words, | |
3405 | NES_IWARP_SQ_LOCINV_WQE_INV_STAG_IDX, | |
3406 | ib_wr->ex.invalidate_rkey); | |
3407 | break; | |
e293a26f CT |
3408 | case IB_WR_FAST_REG_MR: |
3409 | { | |
3410 | int i; | |
3411 | int flags = ib_wr->wr.fast_reg.access_flags; | |
3412 | struct nes_ib_fast_reg_page_list *pnesfrpl = | |
3413 | container_of(ib_wr->wr.fast_reg.page_list, | |
3414 | struct nes_ib_fast_reg_page_list, | |
3415 | ibfrpl); | |
3416 | u64 *src_page_list = pnesfrpl->ibfrpl.page_list; | |
3417 | u64 *dst_page_list = pnesfrpl->nes_wqe_pbl.kva; | |
3418 | ||
3419 | if (ib_wr->wr.fast_reg.page_list_len > | |
3420 | (NES_4K_PBL_CHUNK_SIZE / sizeof(u64))) { | |
3421 | nes_debug(NES_DBG_IW_TX, "SQ_FMR: bad page_list_len\n"); | |
3422 | err = -EINVAL; | |
3423 | break; | |
3424 | } | |
3425 | wqe_misc = NES_IWARP_SQ_OP_FAST_REG; | |
3426 | set_wqe_64bit_value(wqe->wqe_words, | |
3427 | NES_IWARP_SQ_FMR_WQE_VA_FBO_LOW_IDX, | |
3428 | ib_wr->wr.fast_reg.iova_start); | |
3429 | set_wqe_32bit_value(wqe->wqe_words, | |
3430 | NES_IWARP_SQ_FMR_WQE_LENGTH_LOW_IDX, | |
3431 | ib_wr->wr.fast_reg.length); | |
94f622bd TN |
3432 | set_wqe_32bit_value(wqe->wqe_words, |
3433 | NES_IWARP_SQ_FMR_WQE_LENGTH_HIGH_IDX, 0); | |
e293a26f CT |
3434 | set_wqe_32bit_value(wqe->wqe_words, |
3435 | NES_IWARP_SQ_FMR_WQE_MR_STAG_IDX, | |
3436 | ib_wr->wr.fast_reg.rkey); | |
3437 | /* Set page size: */ | |
3438 | if (ib_wr->wr.fast_reg.page_shift == 12) { | |
3439 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_PAGE_SIZE_4K; | |
3440 | } else if (ib_wr->wr.fast_reg.page_shift == 21) { | |
3441 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_PAGE_SIZE_2M; | |
3442 | } else { | |
3443 | nes_debug(NES_DBG_IW_TX, "Invalid page shift," | |
3444 | " ib_wr=%u, max=1\n", ib_wr->num_sge); | |
3445 | err = -EINVAL; | |
3446 | break; | |
3447 | } | |
3448 | /* Set access_flags */ | |
3449 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_LOCAL_READ; | |
3450 | if (flags & IB_ACCESS_LOCAL_WRITE) | |
3451 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_LOCAL_WRITE; | |
3452 | ||
3453 | if (flags & IB_ACCESS_REMOTE_WRITE) | |
3454 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_REMOTE_WRITE; | |
3455 | ||
3456 | if (flags & IB_ACCESS_REMOTE_READ) | |
3457 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_REMOTE_READ; | |
3458 | ||
3459 | if (flags & IB_ACCESS_MW_BIND) | |
3460 | wqe_misc |= NES_IWARP_SQ_FMR_WQE_RIGHTS_ENABLE_WINDOW_BIND; | |
3461 | ||
3462 | /* Fill in PBL info: */ | |
3463 | if (ib_wr->wr.fast_reg.page_list_len > | |
3464 | pnesfrpl->ibfrpl.max_page_list_len) { | |
3465 | nes_debug(NES_DBG_IW_TX, "Invalid page list length," | |
3466 | " ib_wr=%p, value=%u, max=%u\n", | |
3467 | ib_wr, ib_wr->wr.fast_reg.page_list_len, | |
3468 | pnesfrpl->ibfrpl.max_page_list_len); | |
3469 | err = -EINVAL; | |
3470 | break; | |
3471 | } | |
3472 | ||
3473 | set_wqe_64bit_value(wqe->wqe_words, | |
3474 | NES_IWARP_SQ_FMR_WQE_PBL_ADDR_LOW_IDX, | |
3475 | pnesfrpl->nes_wqe_pbl.paddr); | |
3476 | ||
3477 | set_wqe_32bit_value(wqe->wqe_words, | |
3478 | NES_IWARP_SQ_FMR_WQE_PBL_LENGTH_IDX, | |
3479 | ib_wr->wr.fast_reg.page_list_len * 8); | |
3480 | ||
3481 | for (i = 0; i < ib_wr->wr.fast_reg.page_list_len; i++) | |
3482 | dst_page_list[i] = cpu_to_le64(src_page_list[i]); | |
3483 | ||
183ae74b RD |
3484 | nes_debug(NES_DBG_IW_TX, "SQ_FMR: iova_start: %llx, " |
3485 | "length: %d, rkey: %0x, pgl_paddr: %llx, " | |
e293a26f | 3486 | "page_list_len: %u, wqe_misc: %x\n", |
183ae74b | 3487 | (unsigned long long) ib_wr->wr.fast_reg.iova_start, |
e293a26f CT |
3488 | ib_wr->wr.fast_reg.length, |
3489 | ib_wr->wr.fast_reg.rkey, | |
183ae74b | 3490 | (unsigned long long) pnesfrpl->nes_wqe_pbl.paddr, |
e293a26f CT |
3491 | ib_wr->wr.fast_reg.page_list_len, |
3492 | wqe_misc); | |
3493 | break; | |
3494 | } | |
649fe4ae CT |
3495 | default: |
3496 | /* error */ | |
3497 | err = -EINVAL; | |
3498 | break; | |
3499 | } | |
3500 | ||
e5dec394 FZ |
3501 | if (err) |
3502 | break; | |
3503 | ||
d14152da | 3504 | if ((ib_wr->send_flags & IB_SEND_SIGNALED) || nesqp->sig_all) |
3c2d774c | 3505 | wqe_misc |= NES_IWARP_SQ_WQE_SIGNALED_COMPL; |
d14152da | 3506 | |
3c2d774c GS |
3507 | wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = cpu_to_le32(wqe_misc); |
3508 | ||
3509 | ib_wr = ib_wr->next; | |
3510 | head++; | |
3511 | wqe_count++; | |
3512 | if (head >= qsize) | |
3513 | head = 0; | |
3514 | ||
3515 | } | |
3516 | ||
3517 | nesqp->hwqp.sq_head = head; | |
3518 | barrier(); | |
3519 | while (wqe_count) { | |
3520 | counter = min(wqe_count, ((u32)255)); | |
3521 | wqe_count -= counter; | |
3522 | nes_write32(nesdev->regs + NES_WQE_ALLOC, | |
3523 | (counter << 24) | 0x00800000 | nesqp->hwqp.qp_id); | |
3524 | } | |
3525 | ||
5880ff19 | 3526 | spin_unlock_irqrestore(&nesqp->lock, flags); |
3c2d774c | 3527 | |
e5dec394 | 3528 | out: |
3c2d774c GS |
3529 | if (err) |
3530 | *bad_wr = ib_wr; | |
3531 | return err; | |
3532 | } | |
3533 | ||
3534 | ||
3535 | /** | |
3536 | * nes_post_recv | |
3537 | */ | |
3538 | static int nes_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *ib_wr, | |
3539 | struct ib_recv_wr **bad_wr) | |
3540 | { | |
3541 | u64 u64temp; | |
3542 | unsigned long flags = 0; | |
3543 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | |
3544 | struct nes_device *nesdev = nesvnic->nesdev; | |
3545 | struct nes_qp *nesqp = to_nesqp(ibqp); | |
3546 | struct nes_hw_qp_wqe *wqe; | |
3547 | int err = 0; | |
3548 | int sge_index; | |
3549 | u32 qsize = nesqp->hwqp.rq_size; | |
3550 | u32 head; | |
3551 | u32 wqe_count = 0; | |
3552 | u32 counter; | |
3553 | u32 total_payload_length; | |
3554 | ||
4293fdc1 FZ |
3555 | if (nesqp->ibqp_state > IB_QPS_RTS) { |
3556 | err = -EINVAL; | |
3557 | goto out; | |
3558 | } | |
3c2d774c | 3559 | |
5880ff19 | 3560 | spin_lock_irqsave(&nesqp->lock, flags); |
3c2d774c GS |
3561 | |
3562 | head = nesqp->hwqp.rq_head; | |
3563 | ||
3564 | while (ib_wr) { | |
8b1c9dc4 DW |
3565 | /* Check for QP error */ |
3566 | if (nesqp->term_flags) { | |
3567 | err = -EINVAL; | |
3568 | break; | |
3569 | } | |
3570 | ||
3c2d774c GS |
3571 | if (ib_wr->num_sge > nesdev->nesadapter->max_sge) { |
3572 | err = -EINVAL; | |
3573 | break; | |
3574 | } | |
3575 | /* Check for RQ overflow */ | |
3576 | if (((head + (2 * qsize) - nesqp->hwqp.rq_tail) % qsize) == (qsize - 1)) { | |
831d06cf | 3577 | err = -ENOMEM; |
3c2d774c GS |
3578 | break; |
3579 | } | |
3580 | ||
3581 | nes_debug(NES_DBG_IW_RX, "ibwr sge count = %u.\n", ib_wr->num_sge); | |
3582 | wqe = &nesqp->hwqp.rq_vbase[head]; | |
3583 | ||
3584 | /* nes_debug(NES_DBG_IW_RX, "QP%u:processing rq wqe at %p, head = %u.\n", | |
3585 | nesqp->hwqp.qp_id, wqe, head); */ | |
3586 | nes_fill_init_qp_wqe(wqe, nesqp, head); | |
3587 | u64temp = (u64)(ib_wr->wr_id); | |
3588 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, | |
3589 | u64temp); | |
3590 | total_payload_length = 0; | |
3591 | for (sge_index=0; sge_index < ib_wr->num_sge; sge_index++) { | |
3592 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_RQ_WQE_FRAG0_LOW_IDX+(sge_index*4), | |
3593 | ib_wr->sg_list[sge_index].addr); | |
3594 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_RQ_WQE_LENGTH0_IDX+(sge_index*4), | |
3595 | ib_wr->sg_list[sge_index].length); | |
3596 | set_wqe_32bit_value(wqe->wqe_words,NES_IWARP_RQ_WQE_STAG0_IDX+(sge_index*4), | |
3597 | ib_wr->sg_list[sge_index].lkey); | |
3598 | ||
3599 | total_payload_length += ib_wr->sg_list[sge_index].length; | |
3600 | } | |
3601 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_RQ_WQE_TOTAL_PAYLOAD_IDX, | |
3602 | total_payload_length); | |
3603 | ||
3604 | ib_wr = ib_wr->next; | |
3605 | head++; | |
3606 | wqe_count++; | |
3607 | if (head >= qsize) | |
3608 | head = 0; | |
3609 | } | |
3610 | ||
3611 | nesqp->hwqp.rq_head = head; | |
3612 | barrier(); | |
3613 | while (wqe_count) { | |
3614 | counter = min(wqe_count, ((u32)255)); | |
3615 | wqe_count -= counter; | |
3616 | nes_write32(nesdev->regs+NES_WQE_ALLOC, (counter<<24) | nesqp->hwqp.qp_id); | |
3617 | } | |
3618 | ||
5880ff19 | 3619 | spin_unlock_irqrestore(&nesqp->lock, flags); |
3c2d774c | 3620 | |
4293fdc1 | 3621 | out: |
3c2d774c GS |
3622 | if (err) |
3623 | *bad_wr = ib_wr; | |
3624 | return err; | |
3625 | } | |
3626 | ||
3627 | ||
3628 | /** | |
3629 | * nes_poll_cq | |
3630 | */ | |
3631 | static int nes_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry) | |
3632 | { | |
3633 | u64 u64temp; | |
3634 | u64 wrid; | |
3c2d774c GS |
3635 | unsigned long flags = 0; |
3636 | struct nes_vnic *nesvnic = to_nesvnic(ibcq->device); | |
3637 | struct nes_device *nesdev = nesvnic->nesdev; | |
3638 | struct nes_cq *nescq = to_nescq(ibcq); | |
3639 | struct nes_qp *nesqp; | |
3640 | struct nes_hw_cqe cqe; | |
3641 | u32 head; | |
6eed5e7c | 3642 | u32 wq_tail = 0; |
3c2d774c GS |
3643 | u32 cq_size; |
3644 | u32 cqe_count = 0; | |
3645 | u32 wqe_index; | |
3646 | u32 u32temp; | |
6eed5e7c DW |
3647 | u32 move_cq_head = 1; |
3648 | u32 err_code; | |
3c2d774c GS |
3649 | |
3650 | nes_debug(NES_DBG_CQ, "\n"); | |
3651 | ||
5880ff19 | 3652 | spin_lock_irqsave(&nescq->lock, flags); |
3c2d774c GS |
3653 | |
3654 | head = nescq->hw_cq.cq_head; | |
3655 | cq_size = nescq->hw_cq.cq_size; | |
3656 | ||
3657 | while (cqe_count < num_entries) { | |
5ee21fe0 DW |
3658 | if ((le32_to_cpu(nescq->hw_cq.cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX]) & |
3659 | NES_CQE_VALID) == 0) | |
3660 | break; | |
3661 | ||
3662 | /* | |
3663 | * Make sure we read CQ entry contents *after* | |
3664 | * we've checked the valid bit. | |
3665 | */ | |
3666 | rmb(); | |
3667 | ||
3668 | cqe = nescq->hw_cq.cq_vbase[head]; | |
5ee21fe0 DW |
3669 | u32temp = le32_to_cpu(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]); |
3670 | wqe_index = u32temp & (nesdev->nesadapter->max_qp_wr - 1); | |
3671 | u32temp &= ~(NES_SW_CONTEXT_ALIGN-1); | |
3672 | /* parse CQE, get completion context from WQE (either rq or sq) */ | |
3673 | u64temp = (((u64)(le32_to_cpu(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX])))<<32) | | |
3674 | ((u64)u32temp); | |
3675 | ||
3676 | if (u64temp) { | |
3677 | nesqp = (struct nes_qp *)(unsigned long)u64temp; | |
3c2d774c GS |
3678 | memset(entry, 0, sizeof *entry); |
3679 | if (cqe.cqe_words[NES_CQE_ERROR_CODE_IDX] == 0) { | |
3680 | entry->status = IB_WC_SUCCESS; | |
3681 | } else { | |
320cdfd2 DW |
3682 | err_code = le32_to_cpu(cqe.cqe_words[NES_CQE_ERROR_CODE_IDX]); |
3683 | if (NES_IWARP_CQE_MAJOR_DRV == (err_code >> 16)) { | |
3684 | entry->status = err_code & 0x0000ffff; | |
3685 | ||
3686 | /* The rest of the cqe's will be marked as flushed */ | |
3687 | nescq->hw_cq.cq_vbase[head].cqe_words[NES_CQE_ERROR_CODE_IDX] = | |
3688 | cpu_to_le32((NES_IWARP_CQE_MAJOR_FLUSH << 16) | | |
3689 | NES_IWARP_CQE_MINOR_FLUSH); | |
3690 | } else | |
3691 | entry->status = IB_WC_WR_FLUSH_ERR; | |
3c2d774c GS |
3692 | } |
3693 | ||
3694 | entry->qp = &nesqp->ibqp; | |
3695 | entry->src_qp = nesqp->hwqp.qp_id; | |
3696 | ||
3697 | if (le32_to_cpu(cqe.cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_SQ) { | |
3698 | if (nesqp->skip_lsmm) { | |
3699 | nesqp->skip_lsmm = 0; | |
5ee21fe0 | 3700 | nesqp->hwqp.sq_tail++; |
3c2d774c GS |
3701 | } |
3702 | ||
3703 | /* Working on a SQ Completion*/ | |
6eed5e7c | 3704 | wrid = (((u64)(cpu_to_le32((u32)nesqp->hwqp.sq_vbase[wqe_index]. |
3c2d774c | 3705 | wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_HIGH_IDX]))) << 32) | |
6eed5e7c | 3706 | ((u64)(cpu_to_le32((u32)nesqp->hwqp.sq_vbase[wqe_index]. |
3c2d774c | 3707 | wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX]))); |
6eed5e7c | 3708 | entry->byte_len = le32_to_cpu(nesqp->hwqp.sq_vbase[wqe_index]. |
3c2d774c GS |
3709 | wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX]); |
3710 | ||
6eed5e7c | 3711 | switch (le32_to_cpu(nesqp->hwqp.sq_vbase[wqe_index]. |
3c2d774c GS |
3712 | wqe_words[NES_IWARP_SQ_WQE_MISC_IDX]) & 0x3f) { |
3713 | case NES_IWARP_SQ_OP_RDMAW: | |
3714 | nes_debug(NES_DBG_CQ, "Operation = RDMA WRITE.\n"); | |
3715 | entry->opcode = IB_WC_RDMA_WRITE; | |
3716 | break; | |
3717 | case NES_IWARP_SQ_OP_RDMAR: | |
3718 | nes_debug(NES_DBG_CQ, "Operation = RDMA READ.\n"); | |
3719 | entry->opcode = IB_WC_RDMA_READ; | |
6eed5e7c | 3720 | entry->byte_len = le32_to_cpu(nesqp->hwqp.sq_vbase[wqe_index]. |
3c2d774c GS |
3721 | wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX]); |
3722 | break; | |
3723 | case NES_IWARP_SQ_OP_SENDINV: | |
3724 | case NES_IWARP_SQ_OP_SENDSEINV: | |
3725 | case NES_IWARP_SQ_OP_SEND: | |
3726 | case NES_IWARP_SQ_OP_SENDSE: | |
3727 | nes_debug(NES_DBG_CQ, "Operation = Send.\n"); | |
3728 | entry->opcode = IB_WC_SEND; | |
3729 | break; | |
649fe4ae | 3730 | case NES_IWARP_SQ_OP_LOCINV: |
4a4b03f4 | 3731 | entry->opcode = IB_WC_LOCAL_INV; |
649fe4ae | 3732 | break; |
e293a26f CT |
3733 | case NES_IWARP_SQ_OP_FAST_REG: |
3734 | entry->opcode = IB_WC_FAST_REG_MR; | |
3735 | break; | |
3c2d774c | 3736 | } |
6eed5e7c DW |
3737 | |
3738 | nesqp->hwqp.sq_tail = (wqe_index+1)&(nesqp->hwqp.sq_size - 1); | |
3739 | if ((entry->status != IB_WC_SUCCESS) && (nesqp->hwqp.sq_tail != nesqp->hwqp.sq_head)) { | |
3740 | move_cq_head = 0; | |
3741 | wq_tail = nesqp->hwqp.sq_tail; | |
3742 | } | |
3c2d774c GS |
3743 | } else { |
3744 | /* Working on a RQ Completion*/ | |
3c2d774c | 3745 | entry->byte_len = le32_to_cpu(cqe.cqe_words[NES_CQE_PAYLOAD_LENGTH_IDX]); |
6eed5e7c DW |
3746 | wrid = ((u64)(le32_to_cpu(nesqp->hwqp.rq_vbase[wqe_index].wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_LOW_IDX]))) | |
3747 | ((u64)(le32_to_cpu(nesqp->hwqp.rq_vbase[wqe_index].wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_HIGH_IDX]))<<32); | |
3c2d774c | 3748 | entry->opcode = IB_WC_RECV; |
6eed5e7c DW |
3749 | |
3750 | nesqp->hwqp.rq_tail = (wqe_index+1)&(nesqp->hwqp.rq_size - 1); | |
3751 | if ((entry->status != IB_WC_SUCCESS) && (nesqp->hwqp.rq_tail != nesqp->hwqp.rq_head)) { | |
3752 | move_cq_head = 0; | |
3753 | wq_tail = nesqp->hwqp.rq_tail; | |
3754 | } | |
3c2d774c | 3755 | } |
3c2d774c | 3756 | |
5ee21fe0 | 3757 | entry->wr_id = wrid; |
3c2d774c | 3758 | entry++; |
5ee21fe0 DW |
3759 | cqe_count++; |
3760 | } | |
3761 | ||
6eed5e7c DW |
3762 | if (move_cq_head) { |
3763 | nescq->hw_cq.cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX] = 0; | |
3764 | if (++head >= cq_size) | |
3765 | head = 0; | |
3766 | nescq->polled_completions++; | |
5ee21fe0 | 3767 | |
6eed5e7c DW |
3768 | if ((nescq->polled_completions > (cq_size / 2)) || |
3769 | (nescq->polled_completions == 255)) { | |
3770 | nes_debug(NES_DBG_CQ, "CQ%u Issuing CQE Allocate since more than half of cqes" | |
5ee21fe0 DW |
3771 | " are pending %u of %u.\n", |
3772 | nescq->hw_cq.cq_number, nescq->polled_completions, cq_size); | |
6eed5e7c | 3773 | nes_write32(nesdev->regs+NES_CQE_ALLOC, |
5ee21fe0 | 3774 | nescq->hw_cq.cq_number | (nescq->polled_completions << 16)); |
6eed5e7c DW |
3775 | nescq->polled_completions = 0; |
3776 | } | |
3777 | } else { | |
3778 | /* Update the wqe index and set status to flush */ | |
3779 | wqe_index = le32_to_cpu(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]); | |
3780 | wqe_index = (wqe_index & (~(nesdev->nesadapter->max_qp_wr - 1))) | wq_tail; | |
3781 | nescq->hw_cq.cq_vbase[head].cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX] = | |
3782 | cpu_to_le32(wqe_index); | |
3783 | move_cq_head = 1; /* ready for next pass */ | |
5ee21fe0 | 3784 | } |
3c2d774c GS |
3785 | } |
3786 | ||
3787 | if (nescq->polled_completions) { | |
3788 | nes_write32(nesdev->regs+NES_CQE_ALLOC, | |
3789 | nescq->hw_cq.cq_number | (nescq->polled_completions << 16)); | |
3790 | nescq->polled_completions = 0; | |
3791 | } | |
3792 | ||
3793 | nescq->hw_cq.cq_head = head; | |
3794 | nes_debug(NES_DBG_CQ, "Reporting %u completions for CQ%u.\n", | |
3795 | cqe_count, nescq->hw_cq.cq_number); | |
3796 | ||
5880ff19 | 3797 | spin_unlock_irqrestore(&nescq->lock, flags); |
3c2d774c GS |
3798 | |
3799 | return cqe_count; | |
3800 | } | |
3801 | ||
3802 | ||
3803 | /** | |
3804 | * nes_req_notify_cq | |
3805 | */ | |
3806 | static int nes_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags) | |
3807 | { | |
3808 | struct nes_vnic *nesvnic = to_nesvnic(ibcq->device); | |
3809 | struct nes_device *nesdev = nesvnic->nesdev; | |
3810 | struct nes_cq *nescq = to_nescq(ibcq); | |
3811 | u32 cq_arm; | |
3812 | ||
3813 | nes_debug(NES_DBG_CQ, "Requesting notification for CQ%u.\n", | |
3814 | nescq->hw_cq.cq_number); | |
3815 | ||
3816 | cq_arm = nescq->hw_cq.cq_number; | |
3817 | if ((notify_flags & IB_CQ_SOLICITED_MASK) == IB_CQ_NEXT_COMP) | |
3818 | cq_arm |= NES_CQE_ALLOC_NOTIFY_NEXT; | |
3819 | else if ((notify_flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED) | |
3820 | cq_arm |= NES_CQE_ALLOC_NOTIFY_SE; | |
3821 | else | |
3822 | return -EINVAL; | |
3823 | ||
3824 | nes_write32(nesdev->regs+NES_CQE_ALLOC, cq_arm); | |
3825 | nes_read32(nesdev->regs+NES_CQE_ALLOC); | |
3826 | ||
3827 | return 0; | |
3828 | } | |
3829 | ||
3830 | ||
3831 | /** | |
3832 | * nes_init_ofa_device | |
3833 | */ | |
3834 | struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev) | |
3835 | { | |
3836 | struct nes_ib_device *nesibdev; | |
3837 | struct nes_vnic *nesvnic = netdev_priv(netdev); | |
3838 | struct nes_device *nesdev = nesvnic->nesdev; | |
3839 | ||
3840 | nesibdev = (struct nes_ib_device *)ib_alloc_device(sizeof(struct nes_ib_device)); | |
3841 | if (nesibdev == NULL) { | |
3842 | return NULL; | |
3843 | } | |
3844 | strlcpy(nesibdev->ibdev.name, "nes%d", IB_DEVICE_NAME_MAX); | |
3845 | nesibdev->ibdev.owner = THIS_MODULE; | |
3846 | ||
3847 | nesibdev->ibdev.node_type = RDMA_NODE_RNIC; | |
3848 | memset(&nesibdev->ibdev.node_guid, 0, sizeof(nesibdev->ibdev.node_guid)); | |
3849 | memcpy(&nesibdev->ibdev.node_guid, netdev->dev_addr, 6); | |
3850 | ||
3851 | nesibdev->ibdev.uverbs_cmd_mask = | |
3852 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
3853 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
3854 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
3855 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
3856 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
3857 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
3858 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
3859 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
3860 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
3861 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
3862 | (1ull << IB_USER_VERBS_CMD_CREATE_AH) | | |
3863 | (1ull << IB_USER_VERBS_CMD_DESTROY_AH) | | |
3864 | (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | | |
3865 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
3866 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
3867 | (1ull << IB_USER_VERBS_CMD_POLL_CQ) | | |
3868 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
3869 | (1ull << IB_USER_VERBS_CMD_ALLOC_MW) | | |
3870 | (1ull << IB_USER_VERBS_CMD_BIND_MW) | | |
3871 | (1ull << IB_USER_VERBS_CMD_DEALLOC_MW) | | |
3872 | (1ull << IB_USER_VERBS_CMD_POST_RECV) | | |
3873 | (1ull << IB_USER_VERBS_CMD_POST_SEND); | |
3874 | ||
3875 | nesibdev->ibdev.phys_port_cnt = 1; | |
3876 | nesibdev->ibdev.num_comp_vectors = 1; | |
3877 | nesibdev->ibdev.dma_device = &nesdev->pcidev->dev; | |
f4e91eb4 | 3878 | nesibdev->ibdev.dev.parent = &nesdev->pcidev->dev; |
3c2d774c GS |
3879 | nesibdev->ibdev.query_device = nes_query_device; |
3880 | nesibdev->ibdev.query_port = nes_query_port; | |
3c2d774c GS |
3881 | nesibdev->ibdev.query_pkey = nes_query_pkey; |
3882 | nesibdev->ibdev.query_gid = nes_query_gid; | |
3883 | nesibdev->ibdev.alloc_ucontext = nes_alloc_ucontext; | |
3884 | nesibdev->ibdev.dealloc_ucontext = nes_dealloc_ucontext; | |
3885 | nesibdev->ibdev.mmap = nes_mmap; | |
3886 | nesibdev->ibdev.alloc_pd = nes_alloc_pd; | |
3887 | nesibdev->ibdev.dealloc_pd = nes_dealloc_pd; | |
3888 | nesibdev->ibdev.create_ah = nes_create_ah; | |
3889 | nesibdev->ibdev.destroy_ah = nes_destroy_ah; | |
3890 | nesibdev->ibdev.create_qp = nes_create_qp; | |
3891 | nesibdev->ibdev.modify_qp = nes_modify_qp; | |
3892 | nesibdev->ibdev.query_qp = nes_query_qp; | |
3893 | nesibdev->ibdev.destroy_qp = nes_destroy_qp; | |
3894 | nesibdev->ibdev.create_cq = nes_create_cq; | |
3895 | nesibdev->ibdev.destroy_cq = nes_destroy_cq; | |
3896 | nesibdev->ibdev.poll_cq = nes_poll_cq; | |
3897 | nesibdev->ibdev.get_dma_mr = nes_get_dma_mr; | |
3898 | nesibdev->ibdev.reg_phys_mr = nes_reg_phys_mr; | |
3899 | nesibdev->ibdev.reg_user_mr = nes_reg_user_mr; | |
3900 | nesibdev->ibdev.dereg_mr = nes_dereg_mr; | |
3901 | nesibdev->ibdev.alloc_mw = nes_alloc_mw; | |
3902 | nesibdev->ibdev.dealloc_mw = nes_dealloc_mw; | |
3903 | nesibdev->ibdev.bind_mw = nes_bind_mw; | |
3904 | ||
e293a26f CT |
3905 | nesibdev->ibdev.alloc_fast_reg_mr = nes_alloc_fast_reg_mr; |
3906 | nesibdev->ibdev.alloc_fast_reg_page_list = nes_alloc_fast_reg_page_list; | |
3907 | nesibdev->ibdev.free_fast_reg_page_list = nes_free_fast_reg_page_list; | |
3c2d774c GS |
3908 | |
3909 | nesibdev->ibdev.attach_mcast = nes_multicast_attach; | |
3910 | nesibdev->ibdev.detach_mcast = nes_multicast_detach; | |
3911 | nesibdev->ibdev.process_mad = nes_process_mad; | |
3912 | ||
3913 | nesibdev->ibdev.req_notify_cq = nes_req_notify_cq; | |
3914 | nesibdev->ibdev.post_send = nes_post_send; | |
3915 | nesibdev->ibdev.post_recv = nes_post_recv; | |
3916 | ||
3917 | nesibdev->ibdev.iwcm = kzalloc(sizeof(*nesibdev->ibdev.iwcm), GFP_KERNEL); | |
3918 | if (nesibdev->ibdev.iwcm == NULL) { | |
3919 | ib_dealloc_device(&nesibdev->ibdev); | |
3920 | return NULL; | |
3921 | } | |
3922 | nesibdev->ibdev.iwcm->add_ref = nes_add_ref; | |
3923 | nesibdev->ibdev.iwcm->rem_ref = nes_rem_ref; | |
3924 | nesibdev->ibdev.iwcm->get_qp = nes_get_qp; | |
3925 | nesibdev->ibdev.iwcm->connect = nes_connect; | |
3926 | nesibdev->ibdev.iwcm->accept = nes_accept; | |
3927 | nesibdev->ibdev.iwcm->reject = nes_reject; | |
3928 | nesibdev->ibdev.iwcm->create_listen = nes_create_listen; | |
3929 | nesibdev->ibdev.iwcm->destroy_listen = nes_destroy_listen; | |
3930 | ||
3931 | return nesibdev; | |
3932 | } | |
3933 | ||
ea623455 MS |
3934 | |
3935 | /** | |
3936 | * nes_handle_delayed_event | |
3937 | */ | |
3938 | static void nes_handle_delayed_event(unsigned long data) | |
3939 | { | |
3940 | struct nes_vnic *nesvnic = (void *) data; | |
3941 | ||
3942 | if (nesvnic->delayed_event != nesvnic->last_dispatched_event) { | |
3943 | struct ib_event event; | |
3944 | ||
3945 | event.device = &nesvnic->nesibdev->ibdev; | |
3946 | if (!event.device) | |
3947 | goto stop_timer; | |
3948 | event.event = nesvnic->delayed_event; | |
3949 | event.element.port_num = nesvnic->logical_port + 1; | |
3950 | ib_dispatch_event(&event); | |
3951 | } | |
3952 | ||
3953 | stop_timer: | |
3954 | nesvnic->event_timer.function = NULL; | |
3955 | } | |
3956 | ||
3957 | ||
cd6860eb FL |
3958 | void nes_port_ibevent(struct nes_vnic *nesvnic) |
3959 | { | |
3960 | struct nes_ib_device *nesibdev = nesvnic->nesibdev; | |
3961 | struct nes_device *nesdev = nesvnic->nesdev; | |
3962 | struct ib_event event; | |
3963 | event.device = &nesibdev->ibdev; | |
3964 | event.element.port_num = nesvnic->logical_port + 1; | |
3965 | event.event = nesdev->iw_status ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; | |
ea623455 MS |
3966 | |
3967 | if (!nesvnic->event_timer.function) { | |
3968 | ib_dispatch_event(&event); | |
3969 | nesvnic->last_dispatched_event = event.event; | |
3970 | nesvnic->event_timer.function = nes_handle_delayed_event; | |
3971 | nesvnic->event_timer.data = (unsigned long) nesvnic; | |
3972 | nesvnic->event_timer.expires = jiffies + NES_EVENT_DELAY; | |
3973 | add_timer(&nesvnic->event_timer); | |
3974 | } else { | |
3975 | mod_timer(&nesvnic->event_timer, jiffies + NES_EVENT_DELAY); | |
3976 | } | |
3977 | nesvnic->delayed_event = event.event; | |
cd6860eb FL |
3978 | } |
3979 | ||
3c2d774c GS |
3980 | |
3981 | /** | |
3982 | * nes_destroy_ofa_device | |
3983 | */ | |
3984 | void nes_destroy_ofa_device(struct nes_ib_device *nesibdev) | |
3985 | { | |
3986 | if (nesibdev == NULL) | |
3987 | return; | |
3988 | ||
3989 | nes_unregister_ofa_device(nesibdev); | |
3990 | ||
3991 | kfree(nesibdev->ibdev.iwcm); | |
3992 | ib_dealloc_device(&nesibdev->ibdev); | |
3993 | } | |
3994 | ||
3995 | ||
3996 | /** | |
3997 | * nes_register_ofa_device | |
3998 | */ | |
3999 | int nes_register_ofa_device(struct nes_ib_device *nesibdev) | |
4000 | { | |
4001 | struct nes_vnic *nesvnic = nesibdev->nesvnic; | |
4002 | struct nes_device *nesdev = nesvnic->nesdev; | |
4003 | struct nes_adapter *nesadapter = nesdev->nesadapter; | |
4004 | int i, ret; | |
4005 | ||
9a6edb60 | 4006 | ret = ib_register_device(&nesvnic->nesibdev->ibdev, NULL); |
3c2d774c GS |
4007 | if (ret) { |
4008 | return ret; | |
4009 | } | |
4010 | ||
4011 | /* Get the resources allocated to this device */ | |
4012 | nesibdev->max_cq = (nesadapter->max_cq-NES_FIRST_QPN) / nesadapter->port_count; | |
4013 | nesibdev->max_mr = nesadapter->max_mr / nesadapter->port_count; | |
4014 | nesibdev->max_qp = (nesadapter->max_qp-NES_FIRST_QPN) / nesadapter->port_count; | |
4015 | nesibdev->max_pd = nesadapter->max_pd / nesadapter->port_count; | |
4016 | ||
f4e91eb4 TJ |
4017 | for (i = 0; i < ARRAY_SIZE(nes_dev_attributes); ++i) { |
4018 | ret = device_create_file(&nesibdev->ibdev.dev, nes_dev_attributes[i]); | |
3c2d774c GS |
4019 | if (ret) { |
4020 | while (i > 0) { | |
4021 | i--; | |
f4e91eb4 TJ |
4022 | device_remove_file(&nesibdev->ibdev.dev, |
4023 | nes_dev_attributes[i]); | |
3c2d774c GS |
4024 | } |
4025 | ib_unregister_device(&nesibdev->ibdev); | |
4026 | return ret; | |
4027 | } | |
4028 | } | |
4029 | ||
4030 | nesvnic->of_device_registered = 1; | |
4031 | ||
4032 | return 0; | |
4033 | } | |
4034 | ||
4035 | ||
4036 | /** | |
4037 | * nes_unregister_ofa_device | |
4038 | */ | |
1a855fbf | 4039 | static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev) |
3c2d774c GS |
4040 | { |
4041 | struct nes_vnic *nesvnic = nesibdev->nesvnic; | |
4042 | int i; | |
4043 | ||
f4e91eb4 TJ |
4044 | for (i = 0; i < ARRAY_SIZE(nes_dev_attributes); ++i) { |
4045 | device_remove_file(&nesibdev->ibdev.dev, nes_dev_attributes[i]); | |
3c2d774c GS |
4046 | } |
4047 | ||
4048 | if (nesvnic->of_device_registered) { | |
4049 | ib_unregister_device(&nesibdev->ibdev); | |
4050 | } | |
4051 | ||
4052 | nesvnic->of_device_registered = 0; | |
4053 | } |