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