diff options
author | Glenn Streiff <gstreiff@neteffect.com> | 2008-02-04 23:20:45 -0500 |
---|---|---|
committer | Roland Dreier <rolandd@cisco.com> | 2008-02-04 23:20:45 -0500 |
commit | 3c2d774cad5bf4fad576363da77870e9e6530b7a (patch) | |
tree | 344ae8167730ea361ff4bd4bf098ba64bfeef5e5 /drivers/infiniband/hw/nes/nes_verbs.c | |
parent | 2c78853472a36c7cf51a84a34edc370e21c93ce4 (diff) |
RDMA/nes: Add a driver for NetEffect RNICs
Add a standard NIC and RDMA/iWARP driver for NetEffect 1/10Gb ethernet adapters.
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/nes/nes_verbs.c')
-rw-r--r-- | drivers/infiniband/hw/nes/nes_verbs.c | 3917 |
1 files changed, 3917 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c new file mode 100644 index 00000000000..ffd4b425567 --- /dev/null +++ b/drivers/infiniband/hw/nes/nes_verbs.c | |||
@@ -0,0 +1,3917 @@ | |||
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 | |||
52 | |||
53 | /** | ||
54 | * nes_alloc_mw | ||
55 | */ | ||
56 | static struct ib_mw *nes_alloc_mw(struct ib_pd *ibpd) { | ||
57 | unsigned long flags; | ||
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); | ||
121 | nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL); | ||
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)) { | ||
130 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
131 | if (cqp_request->dynamic) { | ||
132 | kfree(cqp_request); | ||
133 | } else { | ||
134 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
135 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
136 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
137 | } | ||
138 | } | ||
139 | kfree(nesmr); | ||
140 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
141 | if (!ret) { | ||
142 | return ERR_PTR(-ETIME); | ||
143 | } else { | ||
144 | return ERR_PTR(-ENOMEM); | ||
145 | } | ||
146 | } else { | ||
147 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
148 | if (cqp_request->dynamic) { | ||
149 | kfree(cqp_request); | ||
150 | } else { | ||
151 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
152 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
153 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
154 | } | ||
155 | } | ||
156 | } | ||
157 | |||
158 | nesmr->ibmw.rkey = stag; | ||
159 | nesmr->mode = IWNES_MEMREG_TYPE_MW; | ||
160 | ibmw = &nesmr->ibmw; | ||
161 | nesmr->pbl_4k = 0; | ||
162 | nesmr->pbls_used = 0; | ||
163 | |||
164 | return ibmw; | ||
165 | } | ||
166 | |||
167 | |||
168 | /** | ||
169 | * nes_dealloc_mw | ||
170 | */ | ||
171 | static int nes_dealloc_mw(struct ib_mw *ibmw) | ||
172 | { | ||
173 | struct nes_mr *nesmr = to_nesmw(ibmw); | ||
174 | struct nes_vnic *nesvnic = to_nesvnic(ibmw->device); | ||
175 | struct nes_device *nesdev = nesvnic->nesdev; | ||
176 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
177 | struct nes_hw_cqp_wqe *cqp_wqe; | ||
178 | struct nes_cqp_request *cqp_request; | ||
179 | int err = 0; | ||
180 | unsigned long flags; | ||
181 | int ret; | ||
182 | |||
183 | /* Deallocate the window with the adapter */ | ||
184 | cqp_request = nes_get_cqp_request(nesdev); | ||
185 | if (cqp_request == NULL) { | ||
186 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | ||
187 | return -ENOMEM; | ||
188 | } | ||
189 | cqp_request->waiting = 1; | ||
190 | cqp_wqe = &cqp_request->cqp_wqe; | ||
191 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | ||
192 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, NES_CQP_DEALLOCATE_STAG); | ||
193 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, ibmw->rkey); | ||
194 | |||
195 | atomic_set(&cqp_request->refcount, 2); | ||
196 | nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL); | ||
197 | |||
198 | /* Wait for CQP */ | ||
199 | nes_debug(NES_DBG_MR, "Waiting for deallocate STag 0x%08X to complete.\n", | ||
200 | ibmw->rkey); | ||
201 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | ||
202 | NES_EVENT_TIMEOUT); | ||
203 | nes_debug(NES_DBG_MR, "Deallocate STag completed, wait_event_timeout ret = %u," | ||
204 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | ||
205 | ret, cqp_request->major_code, cqp_request->minor_code); | ||
206 | if ((!ret) || (cqp_request->major_code)) { | ||
207 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
208 | if (cqp_request->dynamic) { | ||
209 | kfree(cqp_request); | ||
210 | } else { | ||
211 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
212 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
213 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
214 | } | ||
215 | } | ||
216 | if (!ret) { | ||
217 | err = -ETIME; | ||
218 | } else { | ||
219 | err = -EIO; | ||
220 | } | ||
221 | } else { | ||
222 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
223 | if (cqp_request->dynamic) { | ||
224 | kfree(cqp_request); | ||
225 | } else { | ||
226 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
227 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
228 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
229 | } | ||
230 | } | ||
231 | } | ||
232 | |||
233 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | ||
234 | (ibmw->rkey & 0x0fffff00) >> 8); | ||
235 | kfree(nesmr); | ||
236 | |||
237 | return err; | ||
238 | } | ||
239 | |||
240 | |||
241 | /** | ||
242 | * nes_bind_mw | ||
243 | */ | ||
244 | static int nes_bind_mw(struct ib_qp *ibqp, struct ib_mw *ibmw, | ||
245 | struct ib_mw_bind *ibmw_bind) | ||
246 | { | ||
247 | u64 u64temp; | ||
248 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | ||
249 | struct nes_device *nesdev = nesvnic->nesdev; | ||
250 | /* struct nes_mr *nesmr = to_nesmw(ibmw); */ | ||
251 | struct nes_qp *nesqp = to_nesqp(ibqp); | ||
252 | struct nes_hw_qp_wqe *wqe; | ||
253 | unsigned long flags = 0; | ||
254 | u32 head; | ||
255 | u32 wqe_misc = 0; | ||
256 | u32 qsize; | ||
257 | |||
258 | if (nesqp->ibqp_state > IB_QPS_RTS) | ||
259 | return -EINVAL; | ||
260 | |||
261 | spin_lock_irqsave(&nesqp->lock, flags); | ||
262 | |||
263 | head = nesqp->hwqp.sq_head; | ||
264 | qsize = nesqp->hwqp.sq_tail; | ||
265 | |||
266 | /* Check for SQ overflow */ | ||
267 | if (((head + (2 * qsize) - nesqp->hwqp.sq_tail) % qsize) == (qsize - 1)) { | ||
268 | spin_unlock_irqrestore(&nesqp->lock, flags); | ||
269 | return -EINVAL; | ||
270 | } | ||
271 | |||
272 | wqe = &nesqp->hwqp.sq_vbase[head]; | ||
273 | /* nes_debug(NES_DBG_MR, "processing sq wqe at %p, head = %u.\n", wqe, head); */ | ||
274 | nes_fill_init_qp_wqe(wqe, nesqp, head); | ||
275 | u64temp = ibmw_bind->wr_id; | ||
276 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, u64temp); | ||
277 | wqe_misc = NES_IWARP_SQ_OP_BIND; | ||
278 | |||
279 | wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE; | ||
280 | |||
281 | if (ibmw_bind->send_flags & IB_SEND_SIGNALED) | ||
282 | wqe_misc |= NES_IWARP_SQ_WQE_SIGNALED_COMPL; | ||
283 | |||
284 | if (ibmw_bind->mw_access_flags & IB_ACCESS_REMOTE_WRITE) { | ||
285 | wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE; | ||
286 | } | ||
287 | if (ibmw_bind->mw_access_flags & IB_ACCESS_REMOTE_READ) { | ||
288 | wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_READ; | ||
289 | } | ||
290 | |||
291 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_MISC_IDX, wqe_misc); | ||
292 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MR_IDX, ibmw_bind->mr->lkey); | ||
293 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MW_IDX, ibmw->rkey); | ||
294 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_LENGTH_LOW_IDX, | ||
295 | ibmw_bind->length); | ||
296 | wqe->wqe_words[NES_IWARP_SQ_BIND_WQE_LENGTH_HIGH_IDX] = 0; | ||
297 | u64temp = (u64)ibmw_bind->addr; | ||
298 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_VA_FBO_LOW_IDX, u64temp); | ||
299 | |||
300 | head++; | ||
301 | if (head >= qsize) | ||
302 | head = 0; | ||
303 | |||
304 | nesqp->hwqp.sq_head = head; | ||
305 | barrier(); | ||
306 | |||
307 | nes_write32(nesdev->regs+NES_WQE_ALLOC, | ||
308 | (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id); | ||
309 | |||
310 | spin_unlock_irqrestore(&nesqp->lock, flags); | ||
311 | |||
312 | return 0; | ||
313 | } | ||
314 | |||
315 | |||
316 | /** | ||
317 | * nes_alloc_fmr | ||
318 | */ | ||
319 | static struct ib_fmr *nes_alloc_fmr(struct ib_pd *ibpd, | ||
320 | int ibmr_access_flags, | ||
321 | struct ib_fmr_attr *ibfmr_attr) | ||
322 | { | ||
323 | unsigned long flags; | ||
324 | struct nes_pd *nespd = to_nespd(ibpd); | ||
325 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | ||
326 | struct nes_device *nesdev = nesvnic->nesdev; | ||
327 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
328 | struct nes_fmr *nesfmr; | ||
329 | struct nes_cqp_request *cqp_request; | ||
330 | struct nes_hw_cqp_wqe *cqp_wqe; | ||
331 | int ret; | ||
332 | u32 stag; | ||
333 | u32 stag_index = 0; | ||
334 | u32 next_stag_index = 0; | ||
335 | u32 driver_key = 0; | ||
336 | u32 opcode = 0; | ||
337 | u8 stag_key = 0; | ||
338 | int i=0; | ||
339 | struct nes_vpbl vpbl; | ||
340 | |||
341 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); | ||
342 | stag_key = (u8)next_stag_index; | ||
343 | |||
344 | driver_key = 0; | ||
345 | |||
346 | next_stag_index >>= 8; | ||
347 | next_stag_index %= nesadapter->max_mr; | ||
348 | |||
349 | ret = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, | ||
350 | nesadapter->max_mr, &stag_index, &next_stag_index); | ||
351 | if (ret) { | ||
352 | goto failed_resource_alloc; | ||
353 | } | ||
354 | |||
355 | nesfmr = kzalloc(sizeof(*nesfmr), GFP_KERNEL); | ||
356 | if (!nesfmr) { | ||
357 | ret = -ENOMEM; | ||
358 | goto failed_fmr_alloc; | ||
359 | } | ||
360 | |||
361 | nesfmr->nesmr.mode = IWNES_MEMREG_TYPE_FMR; | ||
362 | if (ibfmr_attr->max_pages == 1) { | ||
363 | /* use zero length PBL */ | ||
364 | nesfmr->nesmr.pbl_4k = 0; | ||
365 | nesfmr->nesmr.pbls_used = 0; | ||
366 | } else if (ibfmr_attr->max_pages <= 32) { | ||
367 | /* use PBL 256 */ | ||
368 | nesfmr->nesmr.pbl_4k = 0; | ||
369 | nesfmr->nesmr.pbls_used = 1; | ||
370 | } else if (ibfmr_attr->max_pages <= 512) { | ||
371 | /* use 4K PBLs */ | ||
372 | nesfmr->nesmr.pbl_4k = 1; | ||
373 | nesfmr->nesmr.pbls_used = 1; | ||
374 | } else { | ||
375 | /* use two level 4K PBLs */ | ||
376 | /* add support for two level 256B PBLs */ | ||
377 | nesfmr->nesmr.pbl_4k = 1; | ||
378 | nesfmr->nesmr.pbls_used = 1 + (ibfmr_attr->max_pages >> 9) + | ||
379 | ((ibfmr_attr->max_pages & 511) ? 1 : 0); | ||
380 | } | ||
381 | /* Register the region with the adapter */ | ||
382 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | ||
383 | |||
384 | /* track PBL resources */ | ||
385 | if (nesfmr->nesmr.pbls_used != 0) { | ||
386 | if (nesfmr->nesmr.pbl_4k) { | ||
387 | if (nesfmr->nesmr.pbls_used > nesadapter->free_4kpbl) { | ||
388 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
389 | ret = -ENOMEM; | ||
390 | goto failed_vpbl_alloc; | ||
391 | } else { | ||
392 | nesadapter->free_4kpbl -= nesfmr->nesmr.pbls_used; | ||
393 | } | ||
394 | } else { | ||
395 | if (nesfmr->nesmr.pbls_used > nesadapter->free_256pbl) { | ||
396 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
397 | ret = -ENOMEM; | ||
398 | goto failed_vpbl_alloc; | ||
399 | } else { | ||
400 | nesadapter->free_256pbl -= nesfmr->nesmr.pbls_used; | ||
401 | } | ||
402 | } | ||
403 | } | ||
404 | |||
405 | /* one level pbl */ | ||
406 | if (nesfmr->nesmr.pbls_used == 0) { | ||
407 | nesfmr->root_vpbl.pbl_vbase = NULL; | ||
408 | nes_debug(NES_DBG_MR, "zero level pbl \n"); | ||
409 | } else if (nesfmr->nesmr.pbls_used == 1) { | ||
410 | /* can change it to kmalloc & dma_map_single */ | ||
411 | nesfmr->root_vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096, | ||
412 | &nesfmr->root_vpbl.pbl_pbase); | ||
413 | if (!nesfmr->root_vpbl.pbl_vbase) { | ||
414 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
415 | ret = -ENOMEM; | ||
416 | goto failed_vpbl_alloc; | ||
417 | } | ||
418 | nesfmr->leaf_pbl_cnt = 0; | ||
419 | nes_debug(NES_DBG_MR, "one level pbl, root_vpbl.pbl_vbase=%p \n", | ||
420 | nesfmr->root_vpbl.pbl_vbase); | ||
421 | } | ||
422 | /* two level pbl */ | ||
423 | else { | ||
424 | nesfmr->root_vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 8192, | ||
425 | &nesfmr->root_vpbl.pbl_pbase); | ||
426 | if (!nesfmr->root_vpbl.pbl_vbase) { | ||
427 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
428 | ret = -ENOMEM; | ||
429 | goto failed_vpbl_alloc; | ||
430 | } | ||
431 | |||
432 | nesfmr->root_vpbl.leaf_vpbl = kzalloc(sizeof(*nesfmr->root_vpbl.leaf_vpbl)*1024, GFP_KERNEL); | ||
433 | if (!nesfmr->root_vpbl.leaf_vpbl) { | ||
434 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
435 | ret = -ENOMEM; | ||
436 | goto failed_leaf_vpbl_alloc; | ||
437 | } | ||
438 | |||
439 | nesfmr->leaf_pbl_cnt = nesfmr->nesmr.pbls_used-1; | ||
440 | nes_debug(NES_DBG_MR, "two level pbl, root_vpbl.pbl_vbase=%p" | ||
441 | " leaf_pbl_cnt=%d root_vpbl.leaf_vpbl=%p\n", | ||
442 | nesfmr->root_vpbl.pbl_vbase, nesfmr->leaf_pbl_cnt, nesfmr->root_vpbl.leaf_vpbl); | ||
443 | |||
444 | for (i=0; i<nesfmr->leaf_pbl_cnt; i++) | ||
445 | nesfmr->root_vpbl.leaf_vpbl[i].pbl_vbase = NULL; | ||
446 | |||
447 | for (i=0; i<nesfmr->leaf_pbl_cnt; i++) { | ||
448 | vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096, | ||
449 | &vpbl.pbl_pbase); | ||
450 | |||
451 | if (!vpbl.pbl_vbase) { | ||
452 | ret = -ENOMEM; | ||
453 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
454 | goto failed_leaf_vpbl_pages_alloc; | ||
455 | } | ||
456 | |||
457 | nesfmr->root_vpbl.pbl_vbase[i].pa_low = cpu_to_le32((u32)vpbl.pbl_pbase); | ||
458 | nesfmr->root_vpbl.pbl_vbase[i].pa_high = cpu_to_le32((u32)((((u64)vpbl.pbl_pbase)>>32))); | ||
459 | nesfmr->root_vpbl.leaf_vpbl[i] = vpbl; | ||
460 | |||
461 | nes_debug(NES_DBG_MR, "pbase_low=0x%x, pbase_high=0x%x, vpbl=%p\n", | ||
462 | nesfmr->root_vpbl.pbl_vbase[i].pa_low, | ||
463 | nesfmr->root_vpbl.pbl_vbase[i].pa_high, | ||
464 | &nesfmr->root_vpbl.leaf_vpbl[i]); | ||
465 | } | ||
466 | } | ||
467 | nesfmr->ib_qp = NULL; | ||
468 | nesfmr->access_rights =0; | ||
469 | |||
470 | stag = stag_index << 8; | ||
471 | stag |= driver_key; | ||
472 | stag += (u32)stag_key; | ||
473 | |||
474 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
475 | cqp_request = nes_get_cqp_request(nesdev); | ||
476 | if (cqp_request == NULL) { | ||
477 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | ||
478 | ret = -ENOMEM; | ||
479 | goto failed_leaf_vpbl_pages_alloc; | ||
480 | } | ||
481 | cqp_request->waiting = 1; | ||
482 | cqp_wqe = &cqp_request->cqp_wqe; | ||
483 | |||
484 | nes_debug(NES_DBG_MR, "Registering STag 0x%08X, index = 0x%08X\n", | ||
485 | stag, stag_index); | ||
486 | |||
487 | opcode = NES_CQP_ALLOCATE_STAG | NES_CQP_STAG_VA_TO | NES_CQP_STAG_MR; | ||
488 | |||
489 | if (nesfmr->nesmr.pbl_4k == 1) | ||
490 | opcode |= NES_CQP_STAG_PBL_BLK_SIZE; | ||
491 | |||
492 | if (ibmr_access_flags & IB_ACCESS_REMOTE_WRITE) { | ||
493 | opcode |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE | | ||
494 | NES_CQP_STAG_RIGHTS_LOCAL_WRITE | NES_CQP_STAG_REM_ACC_EN; | ||
495 | nesfmr->access_rights |= | ||
496 | NES_CQP_STAG_RIGHTS_REMOTE_WRITE | NES_CQP_STAG_RIGHTS_LOCAL_WRITE | | ||
497 | NES_CQP_STAG_REM_ACC_EN; | ||
498 | } | ||
499 | |||
500 | if (ibmr_access_flags & IB_ACCESS_REMOTE_READ) { | ||
501 | opcode |= NES_CQP_STAG_RIGHTS_REMOTE_READ | | ||
502 | NES_CQP_STAG_RIGHTS_LOCAL_READ | NES_CQP_STAG_REM_ACC_EN; | ||
503 | nesfmr->access_rights |= | ||
504 | NES_CQP_STAG_RIGHTS_REMOTE_READ | NES_CQP_STAG_RIGHTS_LOCAL_READ | | ||
505 | NES_CQP_STAG_REM_ACC_EN; | ||
506 | } | ||
507 | |||
508 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | ||
509 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | ||
510 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX, (nespd->pd_id & 0x00007fff)); | ||
511 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag); | ||
512 | |||
513 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX] = | ||
514 | cpu_to_le32((nesfmr->nesmr.pbls_used>1) ? | ||
515 | (nesfmr->nesmr.pbls_used-1) : nesfmr->nesmr.pbls_used); | ||
516 | |||
517 | atomic_set(&cqp_request->refcount, 2); | ||
518 | nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL); | ||
519 | |||
520 | /* Wait for CQP */ | ||
521 | ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0), | ||
522 | NES_EVENT_TIMEOUT); | ||
523 | nes_debug(NES_DBG_MR, "Register STag 0x%08X completed, wait_event_timeout ret = %u," | ||
524 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | ||
525 | stag, ret, cqp_request->major_code, cqp_request->minor_code); | ||
526 | |||
527 | if ((!ret) || (cqp_request->major_code)) { | ||
528 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
529 | if (cqp_request->dynamic) { | ||
530 | kfree(cqp_request); | ||
531 | } else { | ||
532 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
533 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
534 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
535 | } | ||
536 | } | ||
537 | ret = (!ret) ? -ETIME : -EIO; | ||
538 | goto failed_leaf_vpbl_pages_alloc; | ||
539 | } else { | ||
540 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
541 | if (cqp_request->dynamic) { | ||
542 | kfree(cqp_request); | ||
543 | } else { | ||
544 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
545 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
546 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
547 | } | ||
548 | } | ||
549 | } | ||
550 | |||
551 | nesfmr->nesmr.ibfmr.lkey = stag; | ||
552 | nesfmr->nesmr.ibfmr.rkey = stag; | ||
553 | nesfmr->attr = *ibfmr_attr; | ||
554 | |||
555 | return &nesfmr->nesmr.ibfmr; | ||
556 | |||
557 | failed_leaf_vpbl_pages_alloc: | ||
558 | /* unroll all allocated pages */ | ||
559 | for (i=0; i<nesfmr->leaf_pbl_cnt; i++) { | ||
560 | if (nesfmr->root_vpbl.leaf_vpbl[i].pbl_vbase) { | ||
561 | pci_free_consistent(nesdev->pcidev, 4096, nesfmr->root_vpbl.leaf_vpbl[i].pbl_vbase, | ||
562 | nesfmr->root_vpbl.leaf_vpbl[i].pbl_pbase); | ||
563 | } | ||
564 | } | ||
565 | if (nesfmr->root_vpbl.leaf_vpbl) | ||
566 | kfree(nesfmr->root_vpbl.leaf_vpbl); | ||
567 | |||
568 | failed_leaf_vpbl_alloc: | ||
569 | if (nesfmr->leaf_pbl_cnt == 0) { | ||
570 | if (nesfmr->root_vpbl.pbl_vbase) | ||
571 | pci_free_consistent(nesdev->pcidev, 4096, nesfmr->root_vpbl.pbl_vbase, | ||
572 | nesfmr->root_vpbl.pbl_pbase); | ||
573 | } else | ||
574 | pci_free_consistent(nesdev->pcidev, 8192, nesfmr->root_vpbl.pbl_vbase, | ||
575 | nesfmr->root_vpbl.pbl_pbase); | ||
576 | |||
577 | failed_vpbl_alloc: | ||
578 | kfree(nesfmr); | ||
579 | |||
580 | failed_fmr_alloc: | ||
581 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
582 | |||
583 | failed_resource_alloc: | ||
584 | return ERR_PTR(ret); | ||
585 | } | ||
586 | |||
587 | |||
588 | /** | ||
589 | * nes_dealloc_fmr | ||
590 | */ | ||
591 | static int nes_dealloc_fmr(struct ib_fmr *ibfmr) | ||
592 | { | ||
593 | struct nes_mr *nesmr = to_nesmr_from_ibfmr(ibfmr); | ||
594 | struct nes_fmr *nesfmr = to_nesfmr(nesmr); | ||
595 | struct nes_vnic *nesvnic = to_nesvnic(ibfmr->device); | ||
596 | struct nes_device *nesdev = nesvnic->nesdev; | ||
597 | struct nes_mr temp_nesmr = *nesmr; | ||
598 | int i = 0; | ||
599 | |||
600 | temp_nesmr.ibmw.device = ibfmr->device; | ||
601 | temp_nesmr.ibmw.pd = ibfmr->pd; | ||
602 | temp_nesmr.ibmw.rkey = ibfmr->rkey; | ||
603 | temp_nesmr.ibmw.uobject = NULL; | ||
604 | |||
605 | /* free the resources */ | ||
606 | if (nesfmr->leaf_pbl_cnt == 0) { | ||
607 | /* single PBL case */ | ||
608 | if (nesfmr->root_vpbl.pbl_vbase) | ||
609 | pci_free_consistent(nesdev->pcidev, 4096, nesfmr->root_vpbl.pbl_vbase, | ||
610 | nesfmr->root_vpbl.pbl_pbase); | ||
611 | } else { | ||
612 | for (i = 0; i < nesfmr->leaf_pbl_cnt; i++) { | ||
613 | pci_free_consistent(nesdev->pcidev, 4096, nesfmr->root_vpbl.leaf_vpbl[i].pbl_vbase, | ||
614 | nesfmr->root_vpbl.leaf_vpbl[i].pbl_pbase); | ||
615 | } | ||
616 | kfree(nesfmr->root_vpbl.leaf_vpbl); | ||
617 | pci_free_consistent(nesdev->pcidev, 8192, nesfmr->root_vpbl.pbl_vbase, | ||
618 | nesfmr->root_vpbl.pbl_pbase); | ||
619 | } | ||
620 | |||
621 | return nes_dealloc_mw(&temp_nesmr.ibmw); | ||
622 | } | ||
623 | |||
624 | |||
625 | /** | ||
626 | * nes_map_phys_fmr | ||
627 | */ | ||
628 | static int nes_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, | ||
629 | int list_len, u64 iova) | ||
630 | { | ||
631 | return 0; | ||
632 | } | ||
633 | |||
634 | |||
635 | /** | ||
636 | * nes_unmap_frm | ||
637 | */ | ||
638 | static int nes_unmap_fmr(struct list_head *ibfmr_list) | ||
639 | { | ||
640 | return 0; | ||
641 | } | ||
642 | |||
643 | |||
644 | |||
645 | /** | ||
646 | * nes_query_device | ||
647 | */ | ||
648 | static int nes_query_device(struct ib_device *ibdev, struct ib_device_attr *props) | ||
649 | { | ||
650 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | ||
651 | struct nes_device *nesdev = nesvnic->nesdev; | ||
652 | struct nes_ib_device *nesibdev = nesvnic->nesibdev; | ||
653 | |||
654 | memset(props, 0, sizeof(*props)); | ||
655 | memcpy(&props->sys_image_guid, nesvnic->netdev->dev_addr, 6); | ||
656 | |||
657 | props->fw_ver = nesdev->nesadapter->fw_ver; | ||
658 | props->device_cap_flags = nesdev->nesadapter->device_cap_flags; | ||
659 | props->vendor_id = nesdev->nesadapter->vendor_id; | ||
660 | props->vendor_part_id = nesdev->nesadapter->vendor_part_id; | ||
661 | props->hw_ver = nesdev->nesadapter->hw_rev; | ||
662 | props->max_mr_size = 0x80000000; | ||
663 | props->max_qp = nesibdev->max_qp; | ||
664 | props->max_qp_wr = nesdev->nesadapter->max_qp_wr - 2; | ||
665 | props->max_sge = nesdev->nesadapter->max_sge; | ||
666 | props->max_cq = nesibdev->max_cq; | ||
667 | props->max_cqe = nesdev->nesadapter->max_cqe - 1; | ||
668 | props->max_mr = nesibdev->max_mr; | ||
669 | props->max_mw = nesibdev->max_mr; | ||
670 | props->max_pd = nesibdev->max_pd; | ||
671 | props->max_sge_rd = 1; | ||
672 | switch (nesdev->nesadapter->max_irrq_wr) { | ||
673 | case 0: | ||
674 | props->max_qp_rd_atom = 1; | ||
675 | break; | ||
676 | case 1: | ||
677 | props->max_qp_rd_atom = 4; | ||
678 | break; | ||
679 | case 2: | ||
680 | props->max_qp_rd_atom = 16; | ||
681 | break; | ||
682 | case 3: | ||
683 | props->max_qp_rd_atom = 32; | ||
684 | break; | ||
685 | default: | ||
686 | props->max_qp_rd_atom = 0; | ||
687 | } | ||
688 | props->max_qp_init_rd_atom = props->max_qp_wr; | ||
689 | props->atomic_cap = IB_ATOMIC_NONE; | ||
690 | props->max_map_per_fmr = 1; | ||
691 | |||
692 | return 0; | ||
693 | } | ||
694 | |||
695 | |||
696 | /** | ||
697 | * nes_query_port | ||
698 | */ | ||
699 | static int nes_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props) | ||
700 | { | ||
701 | memset(props, 0, sizeof(*props)); | ||
702 | |||
703 | props->max_mtu = IB_MTU_2048; | ||
704 | props->active_mtu = IB_MTU_2048; | ||
705 | props->lid = 1; | ||
706 | props->lmc = 0; | ||
707 | props->sm_lid = 0; | ||
708 | props->sm_sl = 0; | ||
709 | props->state = IB_PORT_ACTIVE; | ||
710 | props->phys_state = 0; | ||
711 | props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_REINIT_SUP | | ||
712 | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; | ||
713 | props->gid_tbl_len = 1; | ||
714 | props->pkey_tbl_len = 1; | ||
715 | props->qkey_viol_cntr = 0; | ||
716 | props->active_width = IB_WIDTH_4X; | ||
717 | props->active_speed = 1; | ||
718 | props->max_msg_sz = 0x80000000; | ||
719 | |||
720 | return 0; | ||
721 | } | ||
722 | |||
723 | |||
724 | /** | ||
725 | * nes_modify_port | ||
726 | */ | ||
727 | static int nes_modify_port(struct ib_device *ibdev, u8 port, | ||
728 | int port_modify_mask, struct ib_port_modify *props) | ||
729 | { | ||
730 | return 0; | ||
731 | } | ||
732 | |||
733 | |||
734 | /** | ||
735 | * nes_query_pkey | ||
736 | */ | ||
737 | static int nes_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) | ||
738 | { | ||
739 | *pkey = 0; | ||
740 | return 0; | ||
741 | } | ||
742 | |||
743 | |||
744 | /** | ||
745 | * nes_query_gid | ||
746 | */ | ||
747 | static int nes_query_gid(struct ib_device *ibdev, u8 port, | ||
748 | int index, union ib_gid *gid) | ||
749 | { | ||
750 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | ||
751 | |||
752 | memset(&(gid->raw[0]), 0, sizeof(gid->raw)); | ||
753 | memcpy(&(gid->raw[0]), nesvnic->netdev->dev_addr, 6); | ||
754 | |||
755 | return 0; | ||
756 | } | ||
757 | |||
758 | |||
759 | /** | ||
760 | * nes_alloc_ucontext - Allocate the user context data structure. This keeps track | ||
761 | * of all objects associated with a particular user-mode client. | ||
762 | */ | ||
763 | static struct ib_ucontext *nes_alloc_ucontext(struct ib_device *ibdev, | ||
764 | struct ib_udata *udata) | ||
765 | { | ||
766 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | ||
767 | struct nes_device *nesdev = nesvnic->nesdev; | ||
768 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
769 | struct nes_alloc_ucontext_req req; | ||
770 | struct nes_alloc_ucontext_resp uresp; | ||
771 | struct nes_ucontext *nes_ucontext; | ||
772 | struct nes_ib_device *nesibdev = nesvnic->nesibdev; | ||
773 | |||
774 | |||
775 | if (ib_copy_from_udata(&req, udata, sizeof(struct nes_alloc_ucontext_req))) { | ||
776 | printk(KERN_ERR PFX "Invalid structure size on allocate user context.\n"); | ||
777 | return ERR_PTR(-EINVAL); | ||
778 | } | ||
779 | |||
780 | if (req.userspace_ver != NES_ABI_USERSPACE_VER) { | ||
781 | printk(KERN_ERR PFX "Invalid userspace driver version detected. Detected version %d, should be %d\n", | ||
782 | req.userspace_ver, NES_ABI_USERSPACE_VER); | ||
783 | return ERR_PTR(-EINVAL); | ||
784 | } | ||
785 | |||
786 | |||
787 | memset(&uresp, 0, sizeof uresp); | ||
788 | |||
789 | uresp.max_qps = nesibdev->max_qp; | ||
790 | uresp.max_pds = nesibdev->max_pd; | ||
791 | uresp.wq_size = nesdev->nesadapter->max_qp_wr * 2; | ||
792 | uresp.virtwq = nesadapter->virtwq; | ||
793 | uresp.kernel_ver = NES_ABI_KERNEL_VER; | ||
794 | |||
795 | nes_ucontext = kzalloc(sizeof *nes_ucontext, GFP_KERNEL); | ||
796 | if (!nes_ucontext) | ||
797 | return ERR_PTR(-ENOMEM); | ||
798 | |||
799 | nes_ucontext->nesdev = nesdev; | ||
800 | nes_ucontext->mmap_wq_offset = uresp.max_pds; | ||
801 | nes_ucontext->mmap_cq_offset = nes_ucontext->mmap_wq_offset + | ||
802 | ((sizeof(struct nes_hw_qp_wqe) * uresp.max_qps * 2) + PAGE_SIZE-1) / | ||
803 | PAGE_SIZE; | ||
804 | |||
805 | |||
806 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { | ||
807 | kfree(nes_ucontext); | ||
808 | return ERR_PTR(-EFAULT); | ||
809 | } | ||
810 | |||
811 | INIT_LIST_HEAD(&nes_ucontext->cq_reg_mem_list); | ||
812 | INIT_LIST_HEAD(&nes_ucontext->qp_reg_mem_list); | ||
813 | atomic_set(&nes_ucontext->usecnt, 1); | ||
814 | return &nes_ucontext->ibucontext; | ||
815 | } | ||
816 | |||
817 | |||
818 | /** | ||
819 | * nes_dealloc_ucontext | ||
820 | */ | ||
821 | static int nes_dealloc_ucontext(struct ib_ucontext *context) | ||
822 | { | ||
823 | /* struct nes_vnic *nesvnic = to_nesvnic(context->device); */ | ||
824 | /* struct nes_device *nesdev = nesvnic->nesdev; */ | ||
825 | struct nes_ucontext *nes_ucontext = to_nesucontext(context); | ||
826 | |||
827 | if (!atomic_dec_and_test(&nes_ucontext->usecnt)) | ||
828 | return 0; | ||
829 | kfree(nes_ucontext); | ||
830 | return 0; | ||
831 | } | ||
832 | |||
833 | |||
834 | /** | ||
835 | * nes_mmap | ||
836 | */ | ||
837 | static int nes_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | ||
838 | { | ||
839 | unsigned long index; | ||
840 | struct nes_vnic *nesvnic = to_nesvnic(context->device); | ||
841 | struct nes_device *nesdev = nesvnic->nesdev; | ||
842 | /* struct nes_adapter *nesadapter = nesdev->nesadapter; */ | ||
843 | struct nes_ucontext *nes_ucontext; | ||
844 | struct nes_qp *nesqp; | ||
845 | |||
846 | nes_ucontext = to_nesucontext(context); | ||
847 | |||
848 | |||
849 | if (vma->vm_pgoff >= nes_ucontext->mmap_wq_offset) { | ||
850 | index = (vma->vm_pgoff - nes_ucontext->mmap_wq_offset) * PAGE_SIZE; | ||
851 | index /= ((sizeof(struct nes_hw_qp_wqe) * nesdev->nesadapter->max_qp_wr * 2) + | ||
852 | PAGE_SIZE-1) & (~(PAGE_SIZE-1)); | ||
853 | if (!test_bit(index, nes_ucontext->allocated_wqs)) { | ||
854 | nes_debug(NES_DBG_MMAP, "wq %lu not allocated\n", index); | ||
855 | return -EFAULT; | ||
856 | } | ||
857 | nesqp = nes_ucontext->mmap_nesqp[index]; | ||
858 | if (nesqp == NULL) { | ||
859 | nes_debug(NES_DBG_MMAP, "wq %lu has a NULL QP base.\n", index); | ||
860 | return -EFAULT; | ||
861 | } | ||
862 | if (remap_pfn_range(vma, vma->vm_start, | ||
863 | virt_to_phys(nesqp->hwqp.sq_vbase) >> PAGE_SHIFT, | ||
864 | vma->vm_end - vma->vm_start, | ||
865 | vma->vm_page_prot)) { | ||
866 | nes_debug(NES_DBG_MMAP, "remap_pfn_range failed.\n"); | ||
867 | return -EAGAIN; | ||
868 | } | ||
869 | vma->vm_private_data = nesqp; | ||
870 | return 0; | ||
871 | } else { | ||
872 | index = vma->vm_pgoff; | ||
873 | if (!test_bit(index, nes_ucontext->allocated_doorbells)) | ||
874 | return -EFAULT; | ||
875 | |||
876 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | ||
877 | if (io_remap_pfn_range(vma, vma->vm_start, | ||
878 | (nesdev->doorbell_start + | ||
879 | ((nes_ucontext->mmap_db_index[index] - nesdev->base_doorbell_index) * 4096)) | ||
880 | >> PAGE_SHIFT, PAGE_SIZE, vma->vm_page_prot)) | ||
881 | return -EAGAIN; | ||
882 | vma->vm_private_data = nes_ucontext; | ||
883 | return 0; | ||
884 | } | ||
885 | |||
886 | return -ENOSYS; | ||
887 | } | ||
888 | |||
889 | |||
890 | /** | ||
891 | * nes_alloc_pd | ||
892 | */ | ||
893 | static struct ib_pd *nes_alloc_pd(struct ib_device *ibdev, | ||
894 | struct ib_ucontext *context, struct ib_udata *udata) | ||
895 | { | ||
896 | struct nes_pd *nespd; | ||
897 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | ||
898 | struct nes_device *nesdev = nesvnic->nesdev; | ||
899 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
900 | struct nes_ucontext *nesucontext; | ||
901 | struct nes_alloc_pd_resp uresp; | ||
902 | u32 pd_num = 0; | ||
903 | int err; | ||
904 | |||
905 | nes_debug(NES_DBG_PD, "nesvnic=%p, netdev=%p %s, ibdev=%p, context=%p, netdev refcnt=%u\n", | ||
906 | nesvnic, nesdev->netdev[0], nesdev->netdev[0]->name, ibdev, context, | ||
907 | atomic_read(&nesvnic->netdev->refcnt)); | ||
908 | |||
909 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_pds, | ||
910 | nesadapter->max_pd, &pd_num, &nesadapter->next_pd); | ||
911 | if (err) { | ||
912 | return ERR_PTR(err); | ||
913 | } | ||
914 | |||
915 | nespd = kzalloc(sizeof (struct nes_pd), GFP_KERNEL); | ||
916 | if (!nespd) { | ||
917 | nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num); | ||
918 | return ERR_PTR(-ENOMEM); | ||
919 | } | ||
920 | |||
921 | nes_debug(NES_DBG_PD, "Allocating PD (%p) for ib device %s\n", | ||
922 | nespd, nesvnic->nesibdev->ibdev.name); | ||
923 | |||
924 | nespd->pd_id = (pd_num << (PAGE_SHIFT-12)) + nesadapter->base_pd; | ||
925 | |||
926 | if (context) { | ||
927 | nesucontext = to_nesucontext(context); | ||
928 | nespd->mmap_db_index = find_next_zero_bit(nesucontext->allocated_doorbells, | ||
929 | NES_MAX_USER_DB_REGIONS, nesucontext->first_free_db); | ||
930 | nes_debug(NES_DBG_PD, "find_first_zero_biton doorbells returned %u, mapping pd_id %u.\n", | ||
931 | nespd->mmap_db_index, nespd->pd_id); | ||
932 | if (nespd->mmap_db_index > NES_MAX_USER_DB_REGIONS) { | ||
933 | nes_debug(NES_DBG_PD, "mmap_db_index > MAX\n"); | ||
934 | nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num); | ||
935 | kfree(nespd); | ||
936 | return ERR_PTR(-ENOMEM); | ||
937 | } | ||
938 | |||
939 | uresp.pd_id = nespd->pd_id; | ||
940 | uresp.mmap_db_index = nespd->mmap_db_index; | ||
941 | if (ib_copy_to_udata(udata, &uresp, sizeof (struct nes_alloc_pd_resp))) { | ||
942 | nes_free_resource(nesadapter, nesadapter->allocated_pds, pd_num); | ||
943 | kfree(nespd); | ||
944 | return ERR_PTR(-EFAULT); | ||
945 | } | ||
946 | |||
947 | set_bit(nespd->mmap_db_index, nesucontext->allocated_doorbells); | ||
948 | nesucontext->mmap_db_index[nespd->mmap_db_index] = nespd->pd_id; | ||
949 | nesucontext->first_free_db = nespd->mmap_db_index + 1; | ||
950 | } | ||
951 | |||
952 | nes_debug(NES_DBG_PD, "PD%u structure located @%p.\n", nespd->pd_id, nespd); | ||
953 | return &nespd->ibpd; | ||
954 | } | ||
955 | |||
956 | |||
957 | /** | ||
958 | * nes_dealloc_pd | ||
959 | */ | ||
960 | static int nes_dealloc_pd(struct ib_pd *ibpd) | ||
961 | { | ||
962 | struct nes_ucontext *nesucontext; | ||
963 | struct nes_pd *nespd = to_nespd(ibpd); | ||
964 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | ||
965 | struct nes_device *nesdev = nesvnic->nesdev; | ||
966 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
967 | |||
968 | if ((ibpd->uobject) && (ibpd->uobject->context)) { | ||
969 | nesucontext = to_nesucontext(ibpd->uobject->context); | ||
970 | nes_debug(NES_DBG_PD, "Clearing bit %u from allocated doorbells\n", | ||
971 | nespd->mmap_db_index); | ||
972 | clear_bit(nespd->mmap_db_index, nesucontext->allocated_doorbells); | ||
973 | nesucontext->mmap_db_index[nespd->mmap_db_index] = 0; | ||
974 | if (nesucontext->first_free_db > nespd->mmap_db_index) { | ||
975 | nesucontext->first_free_db = nespd->mmap_db_index; | ||
976 | } | ||
977 | } | ||
978 | |||
979 | nes_debug(NES_DBG_PD, "Deallocating PD%u structure located @%p.\n", | ||
980 | nespd->pd_id, nespd); | ||
981 | nes_free_resource(nesadapter, nesadapter->allocated_pds, | ||
982 | (nespd->pd_id-nesadapter->base_pd)>>(PAGE_SHIFT-12)); | ||
983 | kfree(nespd); | ||
984 | |||
985 | return 0; | ||
986 | } | ||
987 | |||
988 | |||
989 | /** | ||
990 | * nes_create_ah | ||
991 | */ | ||
992 | static struct ib_ah *nes_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) | ||
993 | { | ||
994 | return ERR_PTR(-ENOSYS); | ||
995 | } | ||
996 | |||
997 | |||
998 | /** | ||
999 | * nes_destroy_ah | ||
1000 | */ | ||
1001 | static int nes_destroy_ah(struct ib_ah *ah) | ||
1002 | { | ||
1003 | return -ENOSYS; | ||
1004 | } | ||
1005 | |||
1006 | |||
1007 | /** | ||
1008 | * nes_get_encoded_size | ||
1009 | */ | ||
1010 | static inline u8 nes_get_encoded_size(int *size) | ||
1011 | { | ||
1012 | u8 encoded_size = 0; | ||
1013 | if (*size <= 32) { | ||
1014 | *size = 32; | ||
1015 | encoded_size = 1; | ||
1016 | } else if (*size <= 128) { | ||
1017 | *size = 128; | ||
1018 | encoded_size = 2; | ||
1019 | } else if (*size <= 512) { | ||
1020 | *size = 512; | ||
1021 | encoded_size = 3; | ||
1022 | } | ||
1023 | return (encoded_size); | ||
1024 | } | ||
1025 | |||
1026 | |||
1027 | |||
1028 | /** | ||
1029 | * nes_setup_virt_qp | ||
1030 | */ | ||
1031 | static int nes_setup_virt_qp(struct nes_qp *nesqp, struct nes_pbl *nespbl, | ||
1032 | struct nes_vnic *nesvnic, int sq_size, int rq_size) | ||
1033 | { | ||
1034 | unsigned long flags; | ||
1035 | void *mem; | ||
1036 | __le64 *pbl = NULL; | ||
1037 | __le64 *tpbl; | ||
1038 | __le64 *pblbuffer; | ||
1039 | struct nes_device *nesdev = nesvnic->nesdev; | ||
1040 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
1041 | u32 pbl_entries; | ||
1042 | u8 rq_pbl_entries; | ||
1043 | u8 sq_pbl_entries; | ||
1044 | |||
1045 | pbl_entries = nespbl->pbl_size >> 3; | ||
1046 | nes_debug(NES_DBG_QP, "Userspace PBL, pbl_size=%u, pbl_entries = %d pbl_vbase=%p, pbl_pbase=%p\n", | ||
1047 | nespbl->pbl_size, pbl_entries, | ||
1048 | (void *)nespbl->pbl_vbase, | ||
1049 | (void *)nespbl->pbl_pbase); | ||
1050 | pbl = (__le64 *) nespbl->pbl_vbase; /* points to first pbl entry */ | ||
1051 | /* now lets set the sq_vbase as well as rq_vbase addrs we will assign */ | ||
1052 | /* the first pbl to be fro the rq_vbase... */ | ||
1053 | rq_pbl_entries = (rq_size * sizeof(struct nes_hw_qp_wqe)) >> 12; | ||
1054 | sq_pbl_entries = (sq_size * sizeof(struct nes_hw_qp_wqe)) >> 12; | ||
1055 | nesqp->hwqp.sq_pbase = (le32_to_cpu(((__le32 *)pbl)[0])) | ((u64)((le32_to_cpu(((__le32 *)pbl)[1]))) << 32); | ||
1056 | if (!nespbl->page) { | ||
1057 | nes_debug(NES_DBG_QP, "QP nespbl->page is NULL \n"); | ||
1058 | kfree(nespbl); | ||
1059 | return -ENOMEM; | ||
1060 | } | ||
1061 | |||
1062 | nesqp->hwqp.sq_vbase = kmap(nespbl->page); | ||
1063 | nesqp->page = nespbl->page; | ||
1064 | if (!nesqp->hwqp.sq_vbase) { | ||
1065 | nes_debug(NES_DBG_QP, "QP sq_vbase kmap failed\n"); | ||
1066 | kfree(nespbl); | ||
1067 | return -ENOMEM; | ||
1068 | } | ||
1069 | |||
1070 | /* Now to get to sq.. we need to calculate how many */ | ||
1071 | /* PBL entries were used by the rq.. */ | ||
1072 | pbl += sq_pbl_entries; | ||
1073 | nesqp->hwqp.rq_pbase = (le32_to_cpu(((__le32 *)pbl)[0])) | ((u64)((le32_to_cpu(((__le32 *)pbl)[1]))) << 32); | ||
1074 | /* nesqp->hwqp.rq_vbase = bus_to_virt(*pbl); */ | ||
1075 | /*nesqp->hwqp.rq_vbase = phys_to_virt(*pbl); */ | ||
1076 | |||
1077 | nes_debug(NES_DBG_QP, "QP sq_vbase= %p sq_pbase=%p rq_vbase=%p rq_pbase=%p\n", | ||
1078 | nesqp->hwqp.sq_vbase, (void *)nesqp->hwqp.sq_pbase, | ||
1079 | nesqp->hwqp.rq_vbase, (void *)nesqp->hwqp.rq_pbase); | ||
1080 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | ||
1081 | if (!nesadapter->free_256pbl) { | ||
1082 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | ||
1083 | nespbl->pbl_pbase); | ||
1084 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1085 | kunmap(nesqp->page); | ||
1086 | kfree(nespbl); | ||
1087 | return -ENOMEM; | ||
1088 | } | ||
1089 | nesadapter->free_256pbl--; | ||
1090 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1091 | |||
1092 | nesqp->pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 256, &nesqp->pbl_pbase); | ||
1093 | pblbuffer = nesqp->pbl_vbase; | ||
1094 | if (!nesqp->pbl_vbase) { | ||
1095 | /* memory allocated during nes_reg_user_mr() */ | ||
1096 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | ||
1097 | nespbl->pbl_pbase); | ||
1098 | kfree(nespbl); | ||
1099 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | ||
1100 | nesadapter->free_256pbl++; | ||
1101 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1102 | kunmap(nesqp->page); | ||
1103 | return -ENOMEM; | ||
1104 | } | ||
1105 | memset(nesqp->pbl_vbase, 0, 256); | ||
1106 | /* fill in the page address in the pbl buffer.. */ | ||
1107 | tpbl = pblbuffer + 16; | ||
1108 | pbl = (__le64 *)nespbl->pbl_vbase; | ||
1109 | while (sq_pbl_entries--) | ||
1110 | *tpbl++ = *pbl++; | ||
1111 | tpbl = pblbuffer; | ||
1112 | while (rq_pbl_entries--) | ||
1113 | *tpbl++ = *pbl++; | ||
1114 | |||
1115 | /* done with memory allocated during nes_reg_user_mr() */ | ||
1116 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | ||
1117 | nespbl->pbl_pbase); | ||
1118 | kfree(nespbl); | ||
1119 | |||
1120 | nesqp->qp_mem_size = | ||
1121 | max((u32)sizeof(struct nes_qp_context), ((u32)256)) + 256; /* this is Q2 */ | ||
1122 | /* Round up to a multiple of a page */ | ||
1123 | nesqp->qp_mem_size += PAGE_SIZE - 1; | ||
1124 | nesqp->qp_mem_size &= ~(PAGE_SIZE - 1); | ||
1125 | |||
1126 | mem = pci_alloc_consistent(nesdev->pcidev, nesqp->qp_mem_size, | ||
1127 | &nesqp->hwqp.q2_pbase); | ||
1128 | |||
1129 | if (!mem) { | ||
1130 | pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase); | ||
1131 | nesqp->pbl_vbase = NULL; | ||
1132 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | ||
1133 | nesadapter->free_256pbl++; | ||
1134 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1135 | kunmap(nesqp->page); | ||
1136 | return -ENOMEM; | ||
1137 | } | ||
1138 | nesqp->hwqp.q2_vbase = mem; | ||
1139 | mem += 256; | ||
1140 | memset(nesqp->hwqp.q2_vbase, 0, 256); | ||
1141 | nesqp->nesqp_context = mem; | ||
1142 | memset(nesqp->nesqp_context, 0, sizeof(*nesqp->nesqp_context)); | ||
1143 | nesqp->nesqp_context_pbase = nesqp->hwqp.q2_pbase + 256; | ||
1144 | |||
1145 | return 0; | ||
1146 | } | ||
1147 | |||
1148 | |||
1149 | /** | ||
1150 | * nes_setup_mmap_qp | ||
1151 | */ | ||
1152 | static int nes_setup_mmap_qp(struct nes_qp *nesqp, struct nes_vnic *nesvnic, | ||
1153 | int sq_size, int rq_size) | ||
1154 | { | ||
1155 | void *mem; | ||
1156 | struct nes_device *nesdev = nesvnic->nesdev; | ||
1157 | |||
1158 | nesqp->qp_mem_size = (sizeof(struct nes_hw_qp_wqe) * sq_size) + | ||
1159 | (sizeof(struct nes_hw_qp_wqe) * rq_size) + | ||
1160 | max((u32)sizeof(struct nes_qp_context), ((u32)256)) + | ||
1161 | 256; /* this is Q2 */ | ||
1162 | /* Round up to a multiple of a page */ | ||
1163 | nesqp->qp_mem_size += PAGE_SIZE - 1; | ||
1164 | nesqp->qp_mem_size &= ~(PAGE_SIZE - 1); | ||
1165 | |||
1166 | mem = pci_alloc_consistent(nesdev->pcidev, nesqp->qp_mem_size, | ||
1167 | &nesqp->hwqp.sq_pbase); | ||
1168 | if (!mem) | ||
1169 | return -ENOMEM; | ||
1170 | nes_debug(NES_DBG_QP, "PCI consistent memory for " | ||
1171 | "host descriptor rings located @ %p (pa = 0x%08lX.) size = %u.\n", | ||
1172 | mem, (unsigned long)nesqp->hwqp.sq_pbase, nesqp->qp_mem_size); | ||
1173 | |||
1174 | memset(mem, 0, nesqp->qp_mem_size); | ||
1175 | |||
1176 | nesqp->hwqp.sq_vbase = mem; | ||
1177 | mem += sizeof(struct nes_hw_qp_wqe) * sq_size; | ||
1178 | |||
1179 | nesqp->hwqp.rq_vbase = mem; | ||
1180 | nesqp->hwqp.rq_pbase = nesqp->hwqp.sq_pbase + | ||
1181 | sizeof(struct nes_hw_qp_wqe) * sq_size; | ||
1182 | mem += sizeof(struct nes_hw_qp_wqe) * rq_size; | ||
1183 | |||
1184 | nesqp->hwqp.q2_vbase = mem; | ||
1185 | nesqp->hwqp.q2_pbase = nesqp->hwqp.rq_pbase + | ||
1186 | sizeof(struct nes_hw_qp_wqe) * rq_size; | ||
1187 | mem += 256; | ||
1188 | memset(nesqp->hwqp.q2_vbase, 0, 256); | ||
1189 | |||
1190 | nesqp->nesqp_context = mem; | ||
1191 | nesqp->nesqp_context_pbase = nesqp->hwqp.q2_pbase + 256; | ||
1192 | memset(nesqp->nesqp_context, 0, sizeof(*nesqp->nesqp_context)); | ||
1193 | return 0; | ||
1194 | } | ||
1195 | |||
1196 | |||
1197 | /** | ||
1198 | * nes_free_qp_mem() is to free up the qp's pci_alloc_consistent() memory. | ||
1199 | */ | ||
1200 | static inline void nes_free_qp_mem(struct nes_device *nesdev, | ||
1201 | struct nes_qp *nesqp, int virt_wqs) | ||
1202 | { | ||
1203 | unsigned long flags; | ||
1204 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
1205 | if (!virt_wqs) { | ||
1206 | pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, | ||
1207 | nesqp->hwqp.sq_vbase, nesqp->hwqp.sq_pbase); | ||
1208 | }else { | ||
1209 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | ||
1210 | nesadapter->free_256pbl++; | ||
1211 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1212 | pci_free_consistent(nesdev->pcidev, nesqp->qp_mem_size, nesqp->hwqp.q2_vbase, nesqp->hwqp.q2_pbase); | ||
1213 | pci_free_consistent(nesdev->pcidev, 256, nesqp->pbl_vbase, nesqp->pbl_pbase ); | ||
1214 | nesqp->pbl_vbase = NULL; | ||
1215 | kunmap(nesqp->page); | ||
1216 | } | ||
1217 | } | ||
1218 | |||
1219 | |||
1220 | /** | ||
1221 | * nes_create_qp | ||
1222 | */ | ||
1223 | static struct ib_qp *nes_create_qp(struct ib_pd *ibpd, | ||
1224 | struct ib_qp_init_attr *init_attr, struct ib_udata *udata) | ||
1225 | { | ||
1226 | u64 u64temp= 0; | ||
1227 | u64 u64nesqp = 0; | ||
1228 | struct nes_pd *nespd = to_nespd(ibpd); | ||
1229 | struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); | ||
1230 | struct nes_device *nesdev = nesvnic->nesdev; | ||
1231 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
1232 | struct nes_qp *nesqp; | ||
1233 | struct nes_cq *nescq; | ||
1234 | struct nes_ucontext *nes_ucontext; | ||
1235 | struct nes_hw_cqp_wqe *cqp_wqe; | ||
1236 | struct nes_cqp_request *cqp_request; | ||
1237 | struct nes_create_qp_req req; | ||
1238 | struct nes_create_qp_resp uresp; | ||
1239 | struct nes_pbl *nespbl = NULL; | ||
1240 | u32 qp_num = 0; | ||
1241 | u32 opcode = 0; | ||
1242 | /* u32 counter = 0; */ | ||
1243 | void *mem; | ||
1244 | unsigned long flags; | ||
1245 | int ret; | ||
1246 | int err; | ||
1247 | int virt_wqs = 0; | ||
1248 | int sq_size; | ||
1249 | int rq_size; | ||
1250 | u8 sq_encoded_size; | ||
1251 | u8 rq_encoded_size; | ||
1252 | /* int counter; */ | ||
1253 | |||
1254 | atomic_inc(&qps_created); | ||
1255 | switch (init_attr->qp_type) { | ||
1256 | case IB_QPT_RC: | ||
1257 | if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) { | ||
1258 | init_attr->cap.max_inline_data = 0; | ||
1259 | } else { | ||
1260 | init_attr->cap.max_inline_data = 64; | ||
1261 | } | ||
1262 | sq_size = init_attr->cap.max_send_wr; | ||
1263 | rq_size = init_attr->cap.max_recv_wr; | ||
1264 | |||
1265 | // check if the encoded sizes are OK or not... | ||
1266 | sq_encoded_size = nes_get_encoded_size(&sq_size); | ||
1267 | rq_encoded_size = nes_get_encoded_size(&rq_size); | ||
1268 | |||
1269 | if ((!sq_encoded_size) || (!rq_encoded_size)) { | ||
1270 | nes_debug(NES_DBG_QP, "ERROR bad rq (%u) or sq (%u) size\n", | ||
1271 | rq_size, sq_size); | ||
1272 | return ERR_PTR(-EINVAL); | ||
1273 | } | ||
1274 | |||
1275 | init_attr->cap.max_send_wr = sq_size -2; | ||
1276 | init_attr->cap.max_recv_wr = rq_size -1; | ||
1277 | nes_debug(NES_DBG_QP, "RQ size=%u, SQ Size=%u\n", rq_size, sq_size); | ||
1278 | |||
1279 | ret = nes_alloc_resource(nesadapter, nesadapter->allocated_qps, | ||
1280 | nesadapter->max_qp, &qp_num, &nesadapter->next_qp); | ||
1281 | if (ret) { | ||
1282 | return ERR_PTR(ret); | ||
1283 | } | ||
1284 | |||
1285 | /* Need 512 (actually now 1024) byte alignment on this structure */ | ||
1286 | mem = kzalloc(sizeof(*nesqp)+NES_SW_CONTEXT_ALIGN-1, GFP_KERNEL); | ||
1287 | if (!mem) { | ||
1288 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | ||
1289 | nes_debug(NES_DBG_QP, "Unable to allocate QP\n"); | ||
1290 | return ERR_PTR(-ENOMEM); | ||
1291 | } | ||
1292 | u64nesqp = (unsigned long)mem; | ||
1293 | u64nesqp += ((u64)NES_SW_CONTEXT_ALIGN) - 1; | ||
1294 | u64temp = ((u64)NES_SW_CONTEXT_ALIGN) - 1; | ||
1295 | u64nesqp &= ~u64temp; | ||
1296 | nesqp = (struct nes_qp *)(unsigned long)u64nesqp; | ||
1297 | /* nes_debug(NES_DBG_QP, "nesqp=%p, allocated buffer=%p. Rounded to closest %u\n", | ||
1298 | nesqp, mem, NES_SW_CONTEXT_ALIGN); */ | ||
1299 | nesqp->allocated_buffer = mem; | ||
1300 | |||
1301 | if (udata) { | ||
1302 | if (ib_copy_from_udata(&req, udata, sizeof(struct nes_create_qp_req))) { | ||
1303 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | ||
1304 | kfree(nesqp->allocated_buffer); | ||
1305 | nes_debug(NES_DBG_QP, "ib_copy_from_udata() Failed \n"); | ||
1306 | return NULL; | ||
1307 | } | ||
1308 | if (req.user_wqe_buffers) { | ||
1309 | virt_wqs = 1; | ||
1310 | } | ||
1311 | if ((ibpd->uobject) && (ibpd->uobject->context)) { | ||
1312 | nesqp->user_mode = 1; | ||
1313 | nes_ucontext = to_nesucontext(ibpd->uobject->context); | ||
1314 | if (virt_wqs) { | ||
1315 | err = 1; | ||
1316 | list_for_each_entry(nespbl, &nes_ucontext->qp_reg_mem_list, list) { | ||
1317 | if (nespbl->user_base == (unsigned long )req.user_wqe_buffers) { | ||
1318 | list_del(&nespbl->list); | ||
1319 | err = 0; | ||
1320 | nes_debug(NES_DBG_QP, "Found PBL for virtual QP. nespbl=%p. user_base=0x%lx\n", | ||
1321 | nespbl, nespbl->user_base); | ||
1322 | break; | ||
1323 | } | ||
1324 | } | ||
1325 | if (err) { | ||
1326 | nes_debug(NES_DBG_QP, "Didn't Find PBL for virtual QP. address = %llx.\n", | ||
1327 | (long long unsigned int)req.user_wqe_buffers); | ||
1328 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | ||
1329 | kfree(nesqp->allocated_buffer); | ||
1330 | return ERR_PTR(-ENOMEM); | ||
1331 | } | ||
1332 | } | ||
1333 | |||
1334 | nes_ucontext = to_nesucontext(ibpd->uobject->context); | ||
1335 | nesqp->mmap_sq_db_index = | ||
1336 | find_next_zero_bit(nes_ucontext->allocated_wqs, | ||
1337 | NES_MAX_USER_WQ_REGIONS, nes_ucontext->first_free_wq); | ||
1338 | /* nes_debug(NES_DBG_QP, "find_first_zero_biton wqs returned %u\n", | ||
1339 | nespd->mmap_db_index); */ | ||
1340 | if (nesqp->mmap_sq_db_index > NES_MAX_USER_WQ_REGIONS) { | ||
1341 | nes_debug(NES_DBG_QP, | ||
1342 | "db index > max user regions, failing create QP\n"); | ||
1343 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | ||
1344 | if (virt_wqs) { | ||
1345 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | ||
1346 | nespbl->pbl_pbase); | ||
1347 | kfree(nespbl); | ||
1348 | } | ||
1349 | kfree(nesqp->allocated_buffer); | ||
1350 | return ERR_PTR(-ENOMEM); | ||
1351 | } | ||
1352 | set_bit(nesqp->mmap_sq_db_index, nes_ucontext->allocated_wqs); | ||
1353 | nes_ucontext->mmap_nesqp[nesqp->mmap_sq_db_index] = nesqp; | ||
1354 | nes_ucontext->first_free_wq = nesqp->mmap_sq_db_index + 1; | ||
1355 | } else { | ||
1356 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | ||
1357 | kfree(nesqp->allocated_buffer); | ||
1358 | return ERR_PTR(-EFAULT); | ||
1359 | } | ||
1360 | } | ||
1361 | err = (!virt_wqs) ? nes_setup_mmap_qp(nesqp, nesvnic, sq_size, rq_size) : | ||
1362 | nes_setup_virt_qp(nesqp, nespbl, nesvnic, sq_size, rq_size); | ||
1363 | if (err) { | ||
1364 | nes_debug(NES_DBG_QP, | ||
1365 | "error geting qp mem code = %d\n", err); | ||
1366 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | ||
1367 | kfree(nesqp->allocated_buffer); | ||
1368 | return ERR_PTR(-ENOMEM); | ||
1369 | } | ||
1370 | |||
1371 | nesqp->hwqp.sq_size = sq_size; | ||
1372 | nesqp->hwqp.sq_encoded_size = sq_encoded_size; | ||
1373 | nesqp->hwqp.sq_head = 1; | ||
1374 | nesqp->hwqp.rq_size = rq_size; | ||
1375 | nesqp->hwqp.rq_encoded_size = rq_encoded_size; | ||
1376 | /* nes_debug(NES_DBG_QP, "nesqp->nesqp_context_pbase = %p\n", | ||
1377 | (void *)nesqp->nesqp_context_pbase); | ||
1378 | */ | ||
1379 | nesqp->hwqp.qp_id = qp_num; | ||
1380 | nesqp->ibqp.qp_num = nesqp->hwqp.qp_id; | ||
1381 | nesqp->nespd = nespd; | ||
1382 | |||
1383 | nescq = to_nescq(init_attr->send_cq); | ||
1384 | nesqp->nesscq = nescq; | ||
1385 | nescq = to_nescq(init_attr->recv_cq); | ||
1386 | nesqp->nesrcq = nescq; | ||
1387 | |||
1388 | nesqp->nesqp_context->misc |= cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << | ||
1389 | NES_QPCONTEXT_MISC_PCI_FCN_SHIFT); | ||
1390 | nesqp->nesqp_context->misc |= cpu_to_le32((u32)nesqp->hwqp.rq_encoded_size << | ||
1391 | NES_QPCONTEXT_MISC_RQ_SIZE_SHIFT); | ||
1392 | nesqp->nesqp_context->misc |= cpu_to_le32((u32)nesqp->hwqp.sq_encoded_size << | ||
1393 | NES_QPCONTEXT_MISC_SQ_SIZE_SHIFT); | ||
1394 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_PRIV_EN); | ||
1395 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_FAST_REGISTER_EN); | ||
1396 | nesqp->nesqp_context->cqs = cpu_to_le32(nesqp->nesscq->hw_cq.cq_number + | ||
1397 | ((u32)nesqp->nesrcq->hw_cq.cq_number << 16)); | ||
1398 | u64temp = (u64)nesqp->hwqp.sq_pbase; | ||
1399 | nesqp->nesqp_context->sq_addr_low = cpu_to_le32((u32)u64temp); | ||
1400 | nesqp->nesqp_context->sq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | ||
1401 | |||
1402 | |||
1403 | if (!virt_wqs) { | ||
1404 | u64temp = (u64)nesqp->hwqp.sq_pbase; | ||
1405 | nesqp->nesqp_context->sq_addr_low = cpu_to_le32((u32)u64temp); | ||
1406 | nesqp->nesqp_context->sq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | ||
1407 | u64temp = (u64)nesqp->hwqp.rq_pbase; | ||
1408 | nesqp->nesqp_context->rq_addr_low = cpu_to_le32((u32)u64temp); | ||
1409 | nesqp->nesqp_context->rq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | ||
1410 | } else { | ||
1411 | u64temp = (u64)nesqp->pbl_pbase; | ||
1412 | nesqp->nesqp_context->rq_addr_low = cpu_to_le32((u32)u64temp); | ||
1413 | nesqp->nesqp_context->rq_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | ||
1414 | } | ||
1415 | |||
1416 | /* nes_debug(NES_DBG_QP, "next_qp_nic_index=%u, using nic_index=%d\n", | ||
1417 | nesvnic->next_qp_nic_index, | ||
1418 | nesvnic->qp_nic_index[nesvnic->next_qp_nic_index]); */ | ||
1419 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
1420 | nesqp->nesqp_context->misc2 |= cpu_to_le32( | ||
1421 | (u32)nesvnic->qp_nic_index[nesvnic->next_qp_nic_index] << | ||
1422 | NES_QPCONTEXT_MISC2_NIC_INDEX_SHIFT); | ||
1423 | nesvnic->next_qp_nic_index++; | ||
1424 | if ((nesvnic->next_qp_nic_index > 3) || | ||
1425 | (nesvnic->qp_nic_index[nesvnic->next_qp_nic_index] == 0xf)) { | ||
1426 | nesvnic->next_qp_nic_index = 0; | ||
1427 | } | ||
1428 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
1429 | |||
1430 | nesqp->nesqp_context->pd_index_wscale |= cpu_to_le32((u32)nesqp->nespd->pd_id << 16); | ||
1431 | u64temp = (u64)nesqp->hwqp.q2_pbase; | ||
1432 | nesqp->nesqp_context->q2_addr_low = cpu_to_le32((u32)u64temp); | ||
1433 | nesqp->nesqp_context->q2_addr_high = cpu_to_le32((u32)(u64temp >> 32)); | ||
1434 | nesqp->nesqp_context->aeq_token_low = cpu_to_le32((u32)((unsigned long)(nesqp))); | ||
1435 | nesqp->nesqp_context->aeq_token_high = cpu_to_le32((u32)(upper_32_bits((unsigned long)(nesqp)))); | ||
1436 | nesqp->nesqp_context->ird_ord_sizes = cpu_to_le32(NES_QPCONTEXT_ORDIRD_ALSMM | | ||
1437 | ((((u32)nesadapter->max_irrq_wr) << | ||
1438 | NES_QPCONTEXT_ORDIRD_IRDSIZE_SHIFT) & NES_QPCONTEXT_ORDIRD_IRDSIZE_MASK)); | ||
1439 | if (disable_mpa_crc) { | ||
1440 | nes_debug(NES_DBG_QP, "Disabling MPA crc checking due to module option.\n"); | ||
1441 | nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32(NES_QPCONTEXT_ORDIRD_RNMC); | ||
1442 | } | ||
1443 | |||
1444 | |||
1445 | /* Create the QP */ | ||
1446 | cqp_request = nes_get_cqp_request(nesdev); | ||
1447 | if (cqp_request == NULL) { | ||
1448 | nes_debug(NES_DBG_QP, "Failed to get a cqp_request\n"); | ||
1449 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | ||
1450 | nes_free_qp_mem(nesdev, nesqp,virt_wqs); | ||
1451 | kfree(nesqp->allocated_buffer); | ||
1452 | return ERR_PTR(-ENOMEM); | ||
1453 | } | ||
1454 | cqp_request->waiting = 1; | ||
1455 | cqp_wqe = &cqp_request->cqp_wqe; | ||
1456 | |||
1457 | if (!virt_wqs) { | ||
1458 | opcode = NES_CQP_CREATE_QP | NES_CQP_QP_TYPE_IWARP | | ||
1459 | NES_CQP_QP_IWARP_STATE_IDLE; | ||
1460 | } else { | ||
1461 | opcode = NES_CQP_CREATE_QP | NES_CQP_QP_TYPE_IWARP | NES_CQP_QP_VIRT_WQS | | ||
1462 | NES_CQP_QP_IWARP_STATE_IDLE; | ||
1463 | } | ||
1464 | opcode |= NES_CQP_QP_CQS_VALID; | ||
1465 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | ||
1466 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | ||
1467 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id); | ||
1468 | |||
1469 | u64temp = (u64)nesqp->nesqp_context_pbase; | ||
1470 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp); | ||
1471 | |||
1472 | atomic_set(&cqp_request->refcount, 2); | ||
1473 | nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL); | ||
1474 | |||
1475 | /* Wait for CQP */ | ||
1476 | nes_debug(NES_DBG_QP, "Waiting for create iWARP QP%u to complete.\n", | ||
1477 | nesqp->hwqp.qp_id); | ||
1478 | ret = wait_event_timeout(cqp_request->waitq, | ||
1479 | (cqp_request->request_done != 0), NES_EVENT_TIMEOUT); | ||
1480 | nes_debug(NES_DBG_QP, "Create iwarp QP%u completed, wait_event_timeout ret=%u," | ||
1481 | " nesdev->cqp_head = %u, nesdev->cqp.sq_tail = %u," | ||
1482 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | ||
1483 | nesqp->hwqp.qp_id, ret, nesdev->cqp.sq_head, nesdev->cqp.sq_tail, | ||
1484 | cqp_request->major_code, cqp_request->minor_code); | ||
1485 | if ((!ret) || (cqp_request->major_code)) { | ||
1486 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
1487 | if (cqp_request->dynamic) { | ||
1488 | kfree(cqp_request); | ||
1489 | } else { | ||
1490 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
1491 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
1492 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
1493 | } | ||
1494 | } | ||
1495 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | ||
1496 | nes_free_qp_mem(nesdev, nesqp,virt_wqs); | ||
1497 | kfree(nesqp->allocated_buffer); | ||
1498 | if (!ret) { | ||
1499 | return ERR_PTR(-ETIME); | ||
1500 | } else { | ||
1501 | return ERR_PTR(-EIO); | ||
1502 | } | ||
1503 | } else { | ||
1504 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
1505 | if (cqp_request->dynamic) { | ||
1506 | kfree(cqp_request); | ||
1507 | } else { | ||
1508 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
1509 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
1510 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
1511 | } | ||
1512 | } | ||
1513 | } | ||
1514 | |||
1515 | if (ibpd->uobject) { | ||
1516 | uresp.mmap_sq_db_index = nesqp->mmap_sq_db_index; | ||
1517 | uresp.actual_sq_size = sq_size; | ||
1518 | uresp.actual_rq_size = rq_size; | ||
1519 | uresp.qp_id = nesqp->hwqp.qp_id; | ||
1520 | uresp.nes_drv_opt = nes_drv_opt; | ||
1521 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { | ||
1522 | nes_free_resource(nesadapter, nesadapter->allocated_qps, qp_num); | ||
1523 | nes_free_qp_mem(nesdev, nesqp,virt_wqs); | ||
1524 | kfree(nesqp->allocated_buffer); | ||
1525 | return ERR_PTR(-EFAULT); | ||
1526 | } | ||
1527 | } | ||
1528 | |||
1529 | nes_debug(NES_DBG_QP, "QP%u structure located @%p.Size = %u.\n", | ||
1530 | nesqp->hwqp.qp_id, nesqp, (u32)sizeof(*nesqp)); | ||
1531 | spin_lock_init(&nesqp->lock); | ||
1532 | init_waitqueue_head(&nesqp->state_waitq); | ||
1533 | init_waitqueue_head(&nesqp->kick_waitq); | ||
1534 | nes_add_ref(&nesqp->ibqp); | ||
1535 | break; | ||
1536 | default: | ||
1537 | nes_debug(NES_DBG_QP, "Invalid QP type: %d\n", init_attr->qp_type); | ||
1538 | return ERR_PTR(-EINVAL); | ||
1539 | break; | ||
1540 | } | ||
1541 | |||
1542 | /* update the QP table */ | ||
1543 | nesdev->nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = nesqp; | ||
1544 | nes_debug(NES_DBG_QP, "netdev refcnt=%u\n", | ||
1545 | atomic_read(&nesvnic->netdev->refcnt)); | ||
1546 | |||
1547 | return &nesqp->ibqp; | ||
1548 | } | ||
1549 | |||
1550 | |||
1551 | /** | ||
1552 | * nes_destroy_qp | ||
1553 | */ | ||
1554 | static int nes_destroy_qp(struct ib_qp *ibqp) | ||
1555 | { | ||
1556 | struct nes_qp *nesqp = to_nesqp(ibqp); | ||
1557 | /* struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); */ | ||
1558 | struct nes_ucontext *nes_ucontext; | ||
1559 | struct ib_qp_attr attr; | ||
1560 | struct iw_cm_id *cm_id; | ||
1561 | struct iw_cm_event cm_event; | ||
1562 | int ret; | ||
1563 | |||
1564 | atomic_inc(&sw_qps_destroyed); | ||
1565 | nesqp->destroyed = 1; | ||
1566 | |||
1567 | /* Blow away the connection if it exists. */ | ||
1568 | if (nesqp->ibqp_state >= IB_QPS_INIT && nesqp->ibqp_state <= IB_QPS_RTS) { | ||
1569 | /* if (nesqp->ibqp_state == IB_QPS_RTS) { */ | ||
1570 | attr.qp_state = IB_QPS_ERR; | ||
1571 | nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL); | ||
1572 | } | ||
1573 | |||
1574 | if (((nesqp->ibqp_state == IB_QPS_INIT) || | ||
1575 | (nesqp->ibqp_state == IB_QPS_RTR)) && (nesqp->cm_id)) { | ||
1576 | cm_id = nesqp->cm_id; | ||
1577 | cm_event.event = IW_CM_EVENT_CONNECT_REPLY; | ||
1578 | cm_event.status = IW_CM_EVENT_STATUS_TIMEOUT; | ||
1579 | cm_event.local_addr = cm_id->local_addr; | ||
1580 | cm_event.remote_addr = cm_id->remote_addr; | ||
1581 | cm_event.private_data = NULL; | ||
1582 | cm_event.private_data_len = 0; | ||
1583 | |||
1584 | nes_debug(NES_DBG_QP, "Generating a CM Timeout Event for " | ||
1585 | "QP%u. cm_id = %p, refcount = %u. \n", | ||
1586 | nesqp->hwqp.qp_id, cm_id, atomic_read(&nesqp->refcount)); | ||
1587 | |||
1588 | cm_id->rem_ref(cm_id); | ||
1589 | ret = cm_id->event_handler(cm_id, &cm_event); | ||
1590 | if (ret) | ||
1591 | nes_debug(NES_DBG_QP, "OFA CM event_handler returned, ret=%d\n", ret); | ||
1592 | } | ||
1593 | |||
1594 | |||
1595 | if (nesqp->user_mode) { | ||
1596 | if ((ibqp->uobject)&&(ibqp->uobject->context)) { | ||
1597 | nes_ucontext = to_nesucontext(ibqp->uobject->context); | ||
1598 | clear_bit(nesqp->mmap_sq_db_index, nes_ucontext->allocated_wqs); | ||
1599 | nes_ucontext->mmap_nesqp[nesqp->mmap_sq_db_index] = NULL; | ||
1600 | if (nes_ucontext->first_free_wq > nesqp->mmap_sq_db_index) { | ||
1601 | nes_ucontext->first_free_wq = nesqp->mmap_sq_db_index; | ||
1602 | } | ||
1603 | } | ||
1604 | if (nesqp->pbl_pbase) | ||
1605 | kunmap(nesqp->page); | ||
1606 | } | ||
1607 | |||
1608 | nes_rem_ref(&nesqp->ibqp); | ||
1609 | return 0; | ||
1610 | } | ||
1611 | |||
1612 | |||
1613 | /** | ||
1614 | * nes_create_cq | ||
1615 | */ | ||
1616 | static struct ib_cq *nes_create_cq(struct ib_device *ibdev, int entries, | ||
1617 | int comp_vector, | ||
1618 | struct ib_ucontext *context, struct ib_udata *udata) | ||
1619 | { | ||
1620 | u64 u64temp; | ||
1621 | struct nes_vnic *nesvnic = to_nesvnic(ibdev); | ||
1622 | struct nes_device *nesdev = nesvnic->nesdev; | ||
1623 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
1624 | struct nes_cq *nescq; | ||
1625 | struct nes_ucontext *nes_ucontext = NULL; | ||
1626 | struct nes_cqp_request *cqp_request; | ||
1627 | void *mem = NULL; | ||
1628 | struct nes_hw_cqp_wqe *cqp_wqe; | ||
1629 | struct nes_pbl *nespbl = NULL; | ||
1630 | struct nes_create_cq_req req; | ||
1631 | struct nes_create_cq_resp resp; | ||
1632 | u32 cq_num = 0; | ||
1633 | u32 opcode = 0; | ||
1634 | u32 pbl_entries = 1; | ||
1635 | int err; | ||
1636 | unsigned long flags; | ||
1637 | int ret; | ||
1638 | |||
1639 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_cqs, | ||
1640 | nesadapter->max_cq, &cq_num, &nesadapter->next_cq); | ||
1641 | if (err) { | ||
1642 | return ERR_PTR(err); | ||
1643 | } | ||
1644 | |||
1645 | nescq = kzalloc(sizeof(struct nes_cq), GFP_KERNEL); | ||
1646 | if (!nescq) { | ||
1647 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | ||
1648 | nes_debug(NES_DBG_CQ, "Unable to allocate nes_cq struct\n"); | ||
1649 | return ERR_PTR(-ENOMEM); | ||
1650 | } | ||
1651 | |||
1652 | nescq->hw_cq.cq_size = max(entries + 1, 5); | ||
1653 | nescq->hw_cq.cq_number = cq_num; | ||
1654 | nescq->ibcq.cqe = nescq->hw_cq.cq_size - 1; | ||
1655 | |||
1656 | |||
1657 | if (context) { | ||
1658 | nes_ucontext = to_nesucontext(context); | ||
1659 | if (ib_copy_from_udata(&req, udata, sizeof (struct nes_create_cq_req))) { | ||
1660 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | ||
1661 | kfree(nescq); | ||
1662 | return ERR_PTR(-EFAULT); | ||
1663 | } | ||
1664 | nesvnic->mcrq_ucontext = nes_ucontext; | ||
1665 | nes_ucontext->mcrqf = req.mcrqf; | ||
1666 | if (nes_ucontext->mcrqf) { | ||
1667 | if (nes_ucontext->mcrqf & 0x80000000) | ||
1668 | nescq->hw_cq.cq_number = nesvnic->nic.qp_id + 12 + (nes_ucontext->mcrqf & 0xf) - 1; | ||
1669 | else if (nes_ucontext->mcrqf & 0x40000000) | ||
1670 | nescq->hw_cq.cq_number = nes_ucontext->mcrqf & 0xffff; | ||
1671 | else | ||
1672 | nescq->hw_cq.cq_number = nesvnic->mcrq_qp_id + nes_ucontext->mcrqf-1; | ||
1673 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | ||
1674 | } | ||
1675 | nes_debug(NES_DBG_CQ, "CQ Virtual Address = %08lX, size = %u.\n", | ||
1676 | (unsigned long)req.user_cq_buffer, entries); | ||
1677 | list_for_each_entry(nespbl, &nes_ucontext->cq_reg_mem_list, list) { | ||
1678 | if (nespbl->user_base == (unsigned long )req.user_cq_buffer) { | ||
1679 | list_del(&nespbl->list); | ||
1680 | err = 0; | ||
1681 | nes_debug(NES_DBG_CQ, "Found PBL for virtual CQ. nespbl=%p.\n", | ||
1682 | nespbl); | ||
1683 | break; | ||
1684 | } | ||
1685 | } | ||
1686 | if (err) { | ||
1687 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | ||
1688 | kfree(nescq); | ||
1689 | return ERR_PTR(err); | ||
1690 | } | ||
1691 | |||
1692 | pbl_entries = nespbl->pbl_size >> 3; | ||
1693 | nescq->cq_mem_size = 0; | ||
1694 | } else { | ||
1695 | nescq->cq_mem_size = nescq->hw_cq.cq_size * sizeof(struct nes_hw_cqe); | ||
1696 | nes_debug(NES_DBG_CQ, "Attempting to allocate pci memory (%u entries, %u bytes) for CQ%u.\n", | ||
1697 | entries, nescq->cq_mem_size, nescq->hw_cq.cq_number); | ||
1698 | |||
1699 | /* allocate the physical buffer space */ | ||
1700 | mem = pci_alloc_consistent(nesdev->pcidev, nescq->cq_mem_size, | ||
1701 | &nescq->hw_cq.cq_pbase); | ||
1702 | if (!mem) { | ||
1703 | printk(KERN_ERR PFX "Unable to allocate pci memory for cq\n"); | ||
1704 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | ||
1705 | kfree(nescq); | ||
1706 | return ERR_PTR(-ENOMEM); | ||
1707 | } | ||
1708 | |||
1709 | memset(mem, 0, nescq->cq_mem_size); | ||
1710 | nescq->hw_cq.cq_vbase = mem; | ||
1711 | nescq->hw_cq.cq_head = 0; | ||
1712 | nes_debug(NES_DBG_CQ, "CQ%u virtual address @ %p, phys = 0x%08X\n", | ||
1713 | nescq->hw_cq.cq_number, nescq->hw_cq.cq_vbase, | ||
1714 | (u32)nescq->hw_cq.cq_pbase); | ||
1715 | } | ||
1716 | |||
1717 | nescq->hw_cq.ce_handler = nes_iwarp_ce_handler; | ||
1718 | spin_lock_init(&nescq->lock); | ||
1719 | |||
1720 | /* send CreateCQ request to CQP */ | ||
1721 | cqp_request = nes_get_cqp_request(nesdev); | ||
1722 | if (cqp_request == NULL) { | ||
1723 | nes_debug(NES_DBG_CQ, "Failed to get a cqp_request.\n"); | ||
1724 | if (!context) | ||
1725 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | ||
1726 | nescq->hw_cq.cq_pbase); | ||
1727 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | ||
1728 | kfree(nescq); | ||
1729 | return ERR_PTR(-ENOMEM); | ||
1730 | } | ||
1731 | cqp_request->waiting = 1; | ||
1732 | cqp_wqe = &cqp_request->cqp_wqe; | ||
1733 | |||
1734 | opcode = NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID | | ||
1735 | NES_CQP_CQ_CHK_OVERFLOW | | ||
1736 | NES_CQP_CQ_CEQE_MASK | ((u32)nescq->hw_cq.cq_size << 16); | ||
1737 | |||
1738 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | ||
1739 | |||
1740 | if (pbl_entries != 1) { | ||
1741 | if (pbl_entries > 32) { | ||
1742 | /* use 4k pbl */ | ||
1743 | nes_debug(NES_DBG_CQ, "pbl_entries=%u, use a 4k PBL\n", pbl_entries); | ||
1744 | if (nesadapter->free_4kpbl == 0) { | ||
1745 | if (cqp_request->dynamic) { | ||
1746 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1747 | kfree(cqp_request); | ||
1748 | } else { | ||
1749 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
1750 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1751 | } | ||
1752 | if (!context) | ||
1753 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | ||
1754 | nescq->hw_cq.cq_pbase); | ||
1755 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | ||
1756 | kfree(nescq); | ||
1757 | return ERR_PTR(-ENOMEM); | ||
1758 | } else { | ||
1759 | opcode |= (NES_CQP_CQ_VIRT | NES_CQP_CQ_4KB_CHUNK); | ||
1760 | nescq->virtual_cq = 2; | ||
1761 | nesadapter->free_4kpbl--; | ||
1762 | } | ||
1763 | } else { | ||
1764 | /* use 256 byte pbl */ | ||
1765 | nes_debug(NES_DBG_CQ, "pbl_entries=%u, use a 256 byte PBL\n", pbl_entries); | ||
1766 | if (nesadapter->free_256pbl == 0) { | ||
1767 | if (cqp_request->dynamic) { | ||
1768 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1769 | kfree(cqp_request); | ||
1770 | } else { | ||
1771 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
1772 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1773 | } | ||
1774 | if (!context) | ||
1775 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | ||
1776 | nescq->hw_cq.cq_pbase); | ||
1777 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | ||
1778 | kfree(nescq); | ||
1779 | return ERR_PTR(-ENOMEM); | ||
1780 | } else { | ||
1781 | opcode |= NES_CQP_CQ_VIRT; | ||
1782 | nescq->virtual_cq = 1; | ||
1783 | nesadapter->free_256pbl--; | ||
1784 | } | ||
1785 | } | ||
1786 | } | ||
1787 | |||
1788 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1789 | |||
1790 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | ||
1791 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | ||
1792 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, | ||
1793 | (nescq->hw_cq.cq_number | ((u32)nesdev->ceq_index << 16))); | ||
1794 | |||
1795 | if (context) { | ||
1796 | if (pbl_entries != 1) | ||
1797 | u64temp = (u64)nespbl->pbl_pbase; | ||
1798 | else | ||
1799 | u64temp = le64_to_cpu(nespbl->pbl_vbase[0]); | ||
1800 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX, | ||
1801 | nes_ucontext->mmap_db_index[0]); | ||
1802 | } else { | ||
1803 | u64temp = (u64)nescq->hw_cq.cq_pbase; | ||
1804 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0; | ||
1805 | } | ||
1806 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp); | ||
1807 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0; | ||
1808 | u64temp = (u64)(unsigned long)&nescq->hw_cq; | ||
1809 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] = | ||
1810 | cpu_to_le32((u32)(u64temp >> 1)); | ||
1811 | cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = | ||
1812 | cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF); | ||
1813 | |||
1814 | atomic_set(&cqp_request->refcount, 2); | ||
1815 | nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL); | ||
1816 | |||
1817 | /* Wait for CQP */ | ||
1818 | nes_debug(NES_DBG_CQ, "Waiting for create iWARP CQ%u to complete.\n", | ||
1819 | nescq->hw_cq.cq_number); | ||
1820 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | ||
1821 | NES_EVENT_TIMEOUT * 2); | ||
1822 | nes_debug(NES_DBG_CQ, "Create iWARP CQ%u completed, wait_event_timeout ret = %d.\n", | ||
1823 | nescq->hw_cq.cq_number, ret); | ||
1824 | if ((!ret) || (cqp_request->major_code)) { | ||
1825 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
1826 | if (cqp_request->dynamic) { | ||
1827 | kfree(cqp_request); | ||
1828 | } else { | ||
1829 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
1830 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
1831 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
1832 | } | ||
1833 | } | ||
1834 | nes_debug(NES_DBG_CQ, "iWARP CQ%u create timeout expired, major code = 0x%04X," | ||
1835 | " minor code = 0x%04X\n", | ||
1836 | nescq->hw_cq.cq_number, cqp_request->major_code, cqp_request->minor_code); | ||
1837 | if (!context) | ||
1838 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, mem, | ||
1839 | nescq->hw_cq.cq_pbase); | ||
1840 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | ||
1841 | kfree(nescq); | ||
1842 | return ERR_PTR(-EIO); | ||
1843 | } else { | ||
1844 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
1845 | if (cqp_request->dynamic) { | ||
1846 | kfree(cqp_request); | ||
1847 | } else { | ||
1848 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
1849 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
1850 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
1851 | } | ||
1852 | } | ||
1853 | } | ||
1854 | |||
1855 | if (context) { | ||
1856 | /* free the nespbl */ | ||
1857 | pci_free_consistent(nesdev->pcidev, nespbl->pbl_size, nespbl->pbl_vbase, | ||
1858 | nespbl->pbl_pbase); | ||
1859 | kfree(nespbl); | ||
1860 | resp.cq_id = nescq->hw_cq.cq_number; | ||
1861 | resp.cq_size = nescq->hw_cq.cq_size; | ||
1862 | resp.mmap_db_index = 0; | ||
1863 | if (ib_copy_to_udata(udata, &resp, sizeof resp)) { | ||
1864 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, cq_num); | ||
1865 | kfree(nescq); | ||
1866 | return ERR_PTR(-EFAULT); | ||
1867 | } | ||
1868 | } | ||
1869 | |||
1870 | return &nescq->ibcq; | ||
1871 | } | ||
1872 | |||
1873 | |||
1874 | /** | ||
1875 | * nes_destroy_cq | ||
1876 | */ | ||
1877 | static int nes_destroy_cq(struct ib_cq *ib_cq) | ||
1878 | { | ||
1879 | struct nes_cq *nescq; | ||
1880 | struct nes_device *nesdev; | ||
1881 | struct nes_vnic *nesvnic; | ||
1882 | struct nes_adapter *nesadapter; | ||
1883 | struct nes_hw_cqp_wqe *cqp_wqe; | ||
1884 | struct nes_cqp_request *cqp_request; | ||
1885 | unsigned long flags; | ||
1886 | u32 opcode = 0; | ||
1887 | int ret; | ||
1888 | |||
1889 | if (ib_cq == NULL) | ||
1890 | return 0; | ||
1891 | |||
1892 | nescq = to_nescq(ib_cq); | ||
1893 | nesvnic = to_nesvnic(ib_cq->device); | ||
1894 | nesdev = nesvnic->nesdev; | ||
1895 | nesadapter = nesdev->nesadapter; | ||
1896 | |||
1897 | nes_debug(NES_DBG_CQ, "Destroy CQ%u\n", nescq->hw_cq.cq_number); | ||
1898 | |||
1899 | /* Send DestroyCQ request to CQP */ | ||
1900 | cqp_request = nes_get_cqp_request(nesdev); | ||
1901 | if (cqp_request == NULL) { | ||
1902 | nes_debug(NES_DBG_CQ, "Failed to get a cqp_request.\n"); | ||
1903 | return -ENOMEM; | ||
1904 | } | ||
1905 | cqp_request->waiting = 1; | ||
1906 | cqp_wqe = &cqp_request->cqp_wqe; | ||
1907 | opcode = NES_CQP_DESTROY_CQ | (nescq->hw_cq.cq_size << 16); | ||
1908 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | ||
1909 | if (nescq->virtual_cq == 1) { | ||
1910 | nesadapter->free_256pbl++; | ||
1911 | if (nesadapter->free_256pbl > nesadapter->max_256pbl) { | ||
1912 | printk(KERN_ERR PFX "%s: free 256B PBLs(%u) has exceeded the max(%u)\n", | ||
1913 | __FUNCTION__, nesadapter->free_256pbl, nesadapter->max_256pbl); | ||
1914 | } | ||
1915 | } else if (nescq->virtual_cq == 2) { | ||
1916 | nesadapter->free_4kpbl++; | ||
1917 | if (nesadapter->free_4kpbl > nesadapter->max_4kpbl) { | ||
1918 | printk(KERN_ERR PFX "%s: free 4K PBLs(%u) has exceeded the max(%u)\n", | ||
1919 | __FUNCTION__, nesadapter->free_4kpbl, nesadapter->max_4kpbl); | ||
1920 | } | ||
1921 | opcode |= NES_CQP_CQ_4KB_CHUNK; | ||
1922 | } | ||
1923 | |||
1924 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
1925 | |||
1926 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | ||
1927 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | ||
1928 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, | ||
1929 | (nescq->hw_cq.cq_number | ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 16))); | ||
1930 | nes_free_resource(nesadapter, nesadapter->allocated_cqs, nescq->hw_cq.cq_number); | ||
1931 | atomic_set(&cqp_request->refcount, 2); | ||
1932 | nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL); | ||
1933 | |||
1934 | /* Wait for CQP */ | ||
1935 | nes_debug(NES_DBG_CQ, "Waiting for destroy iWARP CQ%u to complete.\n", | ||
1936 | nescq->hw_cq.cq_number); | ||
1937 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | ||
1938 | NES_EVENT_TIMEOUT); | ||
1939 | nes_debug(NES_DBG_CQ, "Destroy iWARP CQ%u completed, wait_event_timeout ret = %u," | ||
1940 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | ||
1941 | nescq->hw_cq.cq_number, ret, cqp_request->major_code, | ||
1942 | cqp_request->minor_code); | ||
1943 | if ((!ret) || (cqp_request->major_code)) { | ||
1944 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
1945 | if (cqp_request->dynamic) { | ||
1946 | kfree(cqp_request); | ||
1947 | } else { | ||
1948 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
1949 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
1950 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
1951 | } | ||
1952 | } | ||
1953 | if (!ret) { | ||
1954 | nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy timeout expired\n", | ||
1955 | nescq->hw_cq.cq_number); | ||
1956 | ret = -ETIME; | ||
1957 | } else { | ||
1958 | nes_debug(NES_DBG_CQ, "iWARP CQ%u destroy failed\n", | ||
1959 | nescq->hw_cq.cq_number); | ||
1960 | ret = -EIO; | ||
1961 | } | ||
1962 | } else { | ||
1963 | ret = 0; | ||
1964 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
1965 | if (cqp_request->dynamic) { | ||
1966 | kfree(cqp_request); | ||
1967 | } else { | ||
1968 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
1969 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
1970 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
1971 | } | ||
1972 | } | ||
1973 | } | ||
1974 | |||
1975 | if (nescq->cq_mem_size) | ||
1976 | pci_free_consistent(nesdev->pcidev, nescq->cq_mem_size, | ||
1977 | (void *)nescq->hw_cq.cq_vbase, nescq->hw_cq.cq_pbase); | ||
1978 | kfree(nescq); | ||
1979 | |||
1980 | return ret; | ||
1981 | } | ||
1982 | |||
1983 | |||
1984 | /** | ||
1985 | * nes_reg_mr | ||
1986 | */ | ||
1987 | static int nes_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd, | ||
1988 | u32 stag, u64 region_length, struct nes_root_vpbl *root_vpbl, | ||
1989 | dma_addr_t single_buffer, u16 pbl_count, u16 residual_page_count, | ||
1990 | int acc, u64 *iova_start) | ||
1991 | { | ||
1992 | struct nes_hw_cqp_wqe *cqp_wqe; | ||
1993 | struct nes_cqp_request *cqp_request; | ||
1994 | unsigned long flags; | ||
1995 | int ret; | ||
1996 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
1997 | /* int count; */ | ||
1998 | u32 opcode = 0; | ||
1999 | u16 major_code; | ||
2000 | |||
2001 | /* Register the region with the adapter */ | ||
2002 | cqp_request = nes_get_cqp_request(nesdev); | ||
2003 | if (cqp_request == NULL) { | ||
2004 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | ||
2005 | return -ENOMEM; | ||
2006 | } | ||
2007 | cqp_request->waiting = 1; | ||
2008 | cqp_wqe = &cqp_request->cqp_wqe; | ||
2009 | |||
2010 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | ||
2011 | /* track PBL resources */ | ||
2012 | if (pbl_count != 0) { | ||
2013 | if (pbl_count > 1) { | ||
2014 | /* Two level PBL */ | ||
2015 | if ((pbl_count+1) > nesadapter->free_4kpbl) { | ||
2016 | nes_debug(NES_DBG_MR, "Out of 4KB Pbls for two level request.\n"); | ||
2017 | if (cqp_request->dynamic) { | ||
2018 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
2019 | kfree(cqp_request); | ||
2020 | } else { | ||
2021 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
2022 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
2023 | } | ||
2024 | return -ENOMEM; | ||
2025 | } else { | ||
2026 | nesadapter->free_4kpbl -= pbl_count+1; | ||
2027 | } | ||
2028 | } else if (residual_page_count > 32) { | ||
2029 | if (pbl_count > nesadapter->free_4kpbl) { | ||
2030 | nes_debug(NES_DBG_MR, "Out of 4KB Pbls.\n"); | ||
2031 | if (cqp_request->dynamic) { | ||
2032 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
2033 | kfree(cqp_request); | ||
2034 | } else { | ||
2035 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
2036 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
2037 | } | ||
2038 | return -ENOMEM; | ||
2039 | } else { | ||
2040 | nesadapter->free_4kpbl -= pbl_count; | ||
2041 | } | ||
2042 | } else { | ||
2043 | if (pbl_count > nesadapter->free_256pbl) { | ||
2044 | nes_debug(NES_DBG_MR, "Out of 256B Pbls.\n"); | ||
2045 | if (cqp_request->dynamic) { | ||
2046 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
2047 | kfree(cqp_request); | ||
2048 | } else { | ||
2049 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
2050 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
2051 | } | ||
2052 | return -ENOMEM; | ||
2053 | } else { | ||
2054 | nesadapter->free_256pbl -= pbl_count; | ||
2055 | } | ||
2056 | } | ||
2057 | } | ||
2058 | |||
2059 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
2060 | |||
2061 | opcode = NES_CQP_REGISTER_STAG | NES_CQP_STAG_RIGHTS_LOCAL_READ | | ||
2062 | NES_CQP_STAG_VA_TO | NES_CQP_STAG_MR; | ||
2063 | if (acc & IB_ACCESS_LOCAL_WRITE) | ||
2064 | opcode |= NES_CQP_STAG_RIGHTS_LOCAL_WRITE; | ||
2065 | if (acc & IB_ACCESS_REMOTE_WRITE) | ||
2066 | opcode |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE | NES_CQP_STAG_REM_ACC_EN; | ||
2067 | if (acc & IB_ACCESS_REMOTE_READ) | ||
2068 | opcode |= NES_CQP_STAG_RIGHTS_REMOTE_READ | NES_CQP_STAG_REM_ACC_EN; | ||
2069 | if (acc & IB_ACCESS_MW_BIND) | ||
2070 | opcode |= NES_CQP_STAG_RIGHTS_WINDOW_BIND | NES_CQP_STAG_REM_ACC_EN; | ||
2071 | |||
2072 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | ||
2073 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, opcode); | ||
2074 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_VA_LOW_IDX, *iova_start); | ||
2075 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_LEN_LOW_IDX, region_length); | ||
2076 | |||
2077 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] = | ||
2078 | cpu_to_le32((u32)(region_length >> 8) & 0xff000000); | ||
2079 | cqp_wqe->wqe_words[NES_CQP_STAG_WQE_LEN_HIGH_PD_IDX] |= | ||
2080 | cpu_to_le32(nespd->pd_id & 0x00007fff); | ||
2081 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, stag); | ||
2082 | |||
2083 | if (pbl_count == 0) { | ||
2084 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, single_buffer); | ||
2085 | } else { | ||
2086 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PA_LOW_IDX, root_vpbl->pbl_pbase); | ||
2087 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_BLK_COUNT_IDX, pbl_count); | ||
2088 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_PBL_LEN_IDX, | ||
2089 | (((pbl_count - 1) * 4096) + (residual_page_count*8))); | ||
2090 | |||
2091 | if ((pbl_count > 1) || (residual_page_count > 32)) | ||
2092 | cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(NES_CQP_STAG_PBL_BLK_SIZE); | ||
2093 | } | ||
2094 | barrier(); | ||
2095 | |||
2096 | atomic_set(&cqp_request->refcount, 2); | ||
2097 | nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL); | ||
2098 | |||
2099 | /* Wait for CQP */ | ||
2100 | ret = wait_event_timeout(cqp_request->waitq, (0 != cqp_request->request_done), | ||
2101 | NES_EVENT_TIMEOUT); | ||
2102 | nes_debug(NES_DBG_MR, "Register STag 0x%08X completed, wait_event_timeout ret = %u," | ||
2103 | " CQP Major:Minor codes = 0x%04X:0x%04X.\n", | ||
2104 | stag, ret, cqp_request->major_code, cqp_request->minor_code); | ||
2105 | major_code = cqp_request->major_code; | ||
2106 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
2107 | if (cqp_request->dynamic) { | ||
2108 | kfree(cqp_request); | ||
2109 | } else { | ||
2110 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
2111 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
2112 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
2113 | } | ||
2114 | } | ||
2115 | if (!ret) | ||
2116 | return -ETIME; | ||
2117 | else if (major_code) | ||
2118 | return -EIO; | ||
2119 | else | ||
2120 | return 0; | ||
2121 | |||
2122 | return 0; | ||
2123 | } | ||
2124 | |||
2125 | |||
2126 | /** | ||
2127 | * nes_reg_phys_mr | ||
2128 | */ | ||
2129 | static struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd, | ||
2130 | struct ib_phys_buf *buffer_list, int num_phys_buf, int acc, | ||
2131 | u64 * iova_start) | ||
2132 | { | ||
2133 | u64 region_length; | ||
2134 | struct nes_pd *nespd = to_nespd(ib_pd); | ||
2135 | struct nes_vnic *nesvnic = to_nesvnic(ib_pd->device); | ||
2136 | struct nes_device *nesdev = nesvnic->nesdev; | ||
2137 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
2138 | struct nes_mr *nesmr; | ||
2139 | struct ib_mr *ibmr; | ||
2140 | struct nes_vpbl vpbl; | ||
2141 | struct nes_root_vpbl root_vpbl; | ||
2142 | u32 stag; | ||
2143 | u32 i; | ||
2144 | u32 stag_index = 0; | ||
2145 | u32 next_stag_index = 0; | ||
2146 | u32 driver_key = 0; | ||
2147 | u32 root_pbl_index = 0; | ||
2148 | u32 cur_pbl_index = 0; | ||
2149 | int err = 0, pbl_depth = 0; | ||
2150 | int ret = 0; | ||
2151 | u16 pbl_count = 0; | ||
2152 | u8 single_page = 1; | ||
2153 | u8 stag_key = 0; | ||
2154 | |||
2155 | pbl_depth = 0; | ||
2156 | region_length = 0; | ||
2157 | vpbl.pbl_vbase = NULL; | ||
2158 | root_vpbl.pbl_vbase = NULL; | ||
2159 | root_vpbl.pbl_pbase = 0; | ||
2160 | |||
2161 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); | ||
2162 | stag_key = (u8)next_stag_index; | ||
2163 | |||
2164 | driver_key = 0; | ||
2165 | |||
2166 | next_stag_index >>= 8; | ||
2167 | next_stag_index %= nesadapter->max_mr; | ||
2168 | if (num_phys_buf > (1024*512)) { | ||
2169 | return ERR_PTR(-E2BIG); | ||
2170 | } | ||
2171 | |||
2172 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, nesadapter->max_mr, | ||
2173 | &stag_index, &next_stag_index); | ||
2174 | if (err) { | ||
2175 | return ERR_PTR(err); | ||
2176 | } | ||
2177 | |||
2178 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | ||
2179 | if (!nesmr) { | ||
2180 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
2181 | return ERR_PTR(-ENOMEM); | ||
2182 | } | ||
2183 | |||
2184 | for (i = 0; i < num_phys_buf; i++) { | ||
2185 | |||
2186 | if ((i & 0x01FF) == 0) { | ||
2187 | if (root_pbl_index == 1) { | ||
2188 | /* Allocate the root PBL */ | ||
2189 | root_vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 8192, | ||
2190 | &root_vpbl.pbl_pbase); | ||
2191 | nes_debug(NES_DBG_MR, "Allocating root PBL, va = %p, pa = 0x%08X\n", | ||
2192 | root_vpbl.pbl_vbase, (unsigned int)root_vpbl.pbl_pbase); | ||
2193 | if (!root_vpbl.pbl_vbase) { | ||
2194 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | ||
2195 | vpbl.pbl_pbase); | ||
2196 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
2197 | kfree(nesmr); | ||
2198 | return ERR_PTR(-ENOMEM); | ||
2199 | } | ||
2200 | root_vpbl.leaf_vpbl = kzalloc(sizeof(*root_vpbl.leaf_vpbl)*1024, GFP_KERNEL); | ||
2201 | if (!root_vpbl.leaf_vpbl) { | ||
2202 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | ||
2203 | root_vpbl.pbl_pbase); | ||
2204 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | ||
2205 | vpbl.pbl_pbase); | ||
2206 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
2207 | kfree(nesmr); | ||
2208 | return ERR_PTR(-ENOMEM); | ||
2209 | } | ||
2210 | root_vpbl.pbl_vbase[0].pa_low = cpu_to_le32((u32)vpbl.pbl_pbase); | ||
2211 | root_vpbl.pbl_vbase[0].pa_high = | ||
2212 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32))); | ||
2213 | root_vpbl.leaf_vpbl[0] = vpbl; | ||
2214 | } | ||
2215 | /* Allocate a 4K buffer for the PBL */ | ||
2216 | vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096, | ||
2217 | &vpbl.pbl_pbase); | ||
2218 | nes_debug(NES_DBG_MR, "Allocating leaf PBL, va = %p, pa = 0x%016lX\n", | ||
2219 | vpbl.pbl_vbase, (unsigned long)vpbl.pbl_pbase); | ||
2220 | if (!vpbl.pbl_vbase) { | ||
2221 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
2222 | ibmr = ERR_PTR(-ENOMEM); | ||
2223 | kfree(nesmr); | ||
2224 | goto reg_phys_err; | ||
2225 | } | ||
2226 | /* Fill in the root table */ | ||
2227 | if (1 <= root_pbl_index) { | ||
2228 | root_vpbl.pbl_vbase[root_pbl_index].pa_low = | ||
2229 | cpu_to_le32((u32)vpbl.pbl_pbase); | ||
2230 | root_vpbl.pbl_vbase[root_pbl_index].pa_high = | ||
2231 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32))); | ||
2232 | root_vpbl.leaf_vpbl[root_pbl_index] = vpbl; | ||
2233 | } | ||
2234 | root_pbl_index++; | ||
2235 | cur_pbl_index = 0; | ||
2236 | } | ||
2237 | if (buffer_list[i].addr & ~PAGE_MASK) { | ||
2238 | /* TODO: Unwind allocated buffers */ | ||
2239 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
2240 | nes_debug(NES_DBG_MR, "Unaligned Memory Buffer: 0x%x\n", | ||
2241 | (unsigned int) buffer_list[i].addr); | ||
2242 | ibmr = ERR_PTR(-EINVAL); | ||
2243 | kfree(nesmr); | ||
2244 | goto reg_phys_err; | ||
2245 | } | ||
2246 | |||
2247 | if (!buffer_list[i].size) { | ||
2248 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
2249 | nes_debug(NES_DBG_MR, "Invalid Buffer Size\n"); | ||
2250 | ibmr = ERR_PTR(-EINVAL); | ||
2251 | kfree(nesmr); | ||
2252 | goto reg_phys_err; | ||
2253 | } | ||
2254 | |||
2255 | region_length += buffer_list[i].size; | ||
2256 | if ((i != 0) && (single_page)) { | ||
2257 | if ((buffer_list[i-1].addr+PAGE_SIZE) != buffer_list[i].addr) | ||
2258 | single_page = 0; | ||
2259 | } | ||
2260 | vpbl.pbl_vbase[cur_pbl_index].pa_low = cpu_to_le32((u32)buffer_list[i].addr); | ||
2261 | vpbl.pbl_vbase[cur_pbl_index++].pa_high = | ||
2262 | cpu_to_le32((u32)((((u64)buffer_list[i].addr) >> 32))); | ||
2263 | } | ||
2264 | |||
2265 | stag = stag_index << 8; | ||
2266 | stag |= driver_key; | ||
2267 | stag += (u32)stag_key; | ||
2268 | |||
2269 | nes_debug(NES_DBG_MR, "Registering STag 0x%08X, VA = 0x%016lX," | ||
2270 | " length = 0x%016lX, index = 0x%08X\n", | ||
2271 | stag, (unsigned long)*iova_start, (unsigned long)region_length, stag_index); | ||
2272 | |||
2273 | region_length -= (*iova_start)&PAGE_MASK; | ||
2274 | |||
2275 | /* Make the leaf PBL the root if only one PBL */ | ||
2276 | if (root_pbl_index == 1) { | ||
2277 | root_vpbl.pbl_pbase = vpbl.pbl_pbase; | ||
2278 | } | ||
2279 | |||
2280 | if (single_page) { | ||
2281 | pbl_count = 0; | ||
2282 | } else { | ||
2283 | pbl_count = root_pbl_index; | ||
2284 | } | ||
2285 | ret = nes_reg_mr(nesdev, nespd, stag, region_length, &root_vpbl, | ||
2286 | buffer_list[0].addr, pbl_count, (u16)cur_pbl_index, acc, iova_start); | ||
2287 | |||
2288 | if (ret == 0) { | ||
2289 | nesmr->ibmr.rkey = stag; | ||
2290 | nesmr->ibmr.lkey = stag; | ||
2291 | nesmr->mode = IWNES_MEMREG_TYPE_MEM; | ||
2292 | ibmr = &nesmr->ibmr; | ||
2293 | nesmr->pbl_4k = ((pbl_count > 1) || (cur_pbl_index > 32)) ? 1 : 0; | ||
2294 | nesmr->pbls_used = pbl_count; | ||
2295 | if (pbl_count > 1) { | ||
2296 | nesmr->pbls_used++; | ||
2297 | } | ||
2298 | } else { | ||
2299 | kfree(nesmr); | ||
2300 | ibmr = ERR_PTR(-ENOMEM); | ||
2301 | } | ||
2302 | |||
2303 | reg_phys_err: | ||
2304 | /* free the resources */ | ||
2305 | if (root_pbl_index == 1) { | ||
2306 | /* single PBL case */ | ||
2307 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, vpbl.pbl_pbase); | ||
2308 | } else { | ||
2309 | for (i=0; i<root_pbl_index; i++) { | ||
2310 | pci_free_consistent(nesdev->pcidev, 4096, root_vpbl.leaf_vpbl[i].pbl_vbase, | ||
2311 | root_vpbl.leaf_vpbl[i].pbl_pbase); | ||
2312 | } | ||
2313 | kfree(root_vpbl.leaf_vpbl); | ||
2314 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | ||
2315 | root_vpbl.pbl_pbase); | ||
2316 | } | ||
2317 | |||
2318 | return ibmr; | ||
2319 | } | ||
2320 | |||
2321 | |||
2322 | /** | ||
2323 | * nes_get_dma_mr | ||
2324 | */ | ||
2325 | static struct ib_mr *nes_get_dma_mr(struct ib_pd *pd, int acc) | ||
2326 | { | ||
2327 | struct ib_phys_buf bl; | ||
2328 | u64 kva = 0; | ||
2329 | |||
2330 | nes_debug(NES_DBG_MR, "\n"); | ||
2331 | |||
2332 | bl.size = (u64)0xffffffffffULL; | ||
2333 | bl.addr = 0; | ||
2334 | return nes_reg_phys_mr(pd, &bl, 1, acc, &kva); | ||
2335 | } | ||
2336 | |||
2337 | |||
2338 | /** | ||
2339 | * nes_reg_user_mr | ||
2340 | */ | ||
2341 | static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, | ||
2342 | u64 virt, int acc, struct ib_udata *udata) | ||
2343 | { | ||
2344 | u64 iova_start; | ||
2345 | __le64 *pbl; | ||
2346 | u64 region_length; | ||
2347 | dma_addr_t last_dma_addr = 0; | ||
2348 | dma_addr_t first_dma_addr = 0; | ||
2349 | struct nes_pd *nespd = to_nespd(pd); | ||
2350 | struct nes_vnic *nesvnic = to_nesvnic(pd->device); | ||
2351 | struct nes_device *nesdev = nesvnic->nesdev; | ||
2352 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
2353 | struct ib_mr *ibmr = ERR_PTR(-EINVAL); | ||
2354 | struct ib_umem_chunk *chunk; | ||
2355 | struct nes_ucontext *nes_ucontext; | ||
2356 | struct nes_pbl *nespbl; | ||
2357 | struct nes_mr *nesmr; | ||
2358 | struct ib_umem *region; | ||
2359 | struct nes_mem_reg_req req; | ||
2360 | struct nes_vpbl vpbl; | ||
2361 | struct nes_root_vpbl root_vpbl; | ||
2362 | int nmap_index, page_index; | ||
2363 | int page_count = 0; | ||
2364 | int err, pbl_depth = 0; | ||
2365 | int chunk_pages; | ||
2366 | int ret; | ||
2367 | u32 stag; | ||
2368 | u32 stag_index = 0; | ||
2369 | u32 next_stag_index; | ||
2370 | u32 driver_key; | ||
2371 | u32 root_pbl_index = 0; | ||
2372 | u32 cur_pbl_index = 0; | ||
2373 | u32 skip_pages; | ||
2374 | u16 pbl_count; | ||
2375 | u8 single_page = 1; | ||
2376 | u8 stag_key; | ||
2377 | |||
2378 | region = ib_umem_get(pd->uobject->context, start, length, acc); | ||
2379 | if (IS_ERR(region)) { | ||
2380 | return (struct ib_mr *)region; | ||
2381 | } | ||
2382 | |||
2383 | nes_debug(NES_DBG_MR, "User base = 0x%lX, Virt base = 0x%lX, length = %u," | ||
2384 | " offset = %u, page size = %u.\n", | ||
2385 | (unsigned long int)start, (unsigned long int)virt, (u32)length, | ||
2386 | region->offset, region->page_size); | ||
2387 | |||
2388 | skip_pages = ((u32)region->offset) >> 12; | ||
2389 | |||
2390 | if (ib_copy_from_udata(&req, udata, sizeof(req))) | ||
2391 | return ERR_PTR(-EFAULT); | ||
2392 | nes_debug(NES_DBG_MR, "Memory Registration type = %08X.\n", req.reg_type); | ||
2393 | |||
2394 | switch (req.reg_type) { | ||
2395 | case IWNES_MEMREG_TYPE_MEM: | ||
2396 | pbl_depth = 0; | ||
2397 | region_length = 0; | ||
2398 | vpbl.pbl_vbase = NULL; | ||
2399 | root_vpbl.pbl_vbase = NULL; | ||
2400 | root_vpbl.pbl_pbase = 0; | ||
2401 | |||
2402 | get_random_bytes(&next_stag_index, sizeof(next_stag_index)); | ||
2403 | stag_key = (u8)next_stag_index; | ||
2404 | |||
2405 | driver_key = next_stag_index & 0x70000000; | ||
2406 | |||
2407 | next_stag_index >>= 8; | ||
2408 | next_stag_index %= nesadapter->max_mr; | ||
2409 | |||
2410 | err = nes_alloc_resource(nesadapter, nesadapter->allocated_mrs, | ||
2411 | nesadapter->max_mr, &stag_index, &next_stag_index); | ||
2412 | if (err) { | ||
2413 | ib_umem_release(region); | ||
2414 | return ERR_PTR(err); | ||
2415 | } | ||
2416 | |||
2417 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | ||
2418 | if (!nesmr) { | ||
2419 | ib_umem_release(region); | ||
2420 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
2421 | return ERR_PTR(-ENOMEM); | ||
2422 | } | ||
2423 | nesmr->region = region; | ||
2424 | |||
2425 | list_for_each_entry(chunk, ®ion->chunk_list, list) { | ||
2426 | nes_debug(NES_DBG_MR, "Chunk: nents = %u, nmap = %u .\n", | ||
2427 | chunk->nents, chunk->nmap); | ||
2428 | for (nmap_index = 0; nmap_index < chunk->nmap; ++nmap_index) { | ||
2429 | if (sg_dma_address(&chunk->page_list[nmap_index]) & ~PAGE_MASK) { | ||
2430 | ib_umem_release(region); | ||
2431 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
2432 | nes_debug(NES_DBG_MR, "Unaligned Memory Buffer: 0x%x\n", | ||
2433 | (unsigned int) sg_dma_address(&chunk->page_list[nmap_index])); | ||
2434 | ibmr = ERR_PTR(-EINVAL); | ||
2435 | kfree(nesmr); | ||
2436 | goto reg_user_mr_err; | ||
2437 | } | ||
2438 | |||
2439 | if (!sg_dma_len(&chunk->page_list[nmap_index])) { | ||
2440 | ib_umem_release(region); | ||
2441 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | ||
2442 | stag_index); | ||
2443 | nes_debug(NES_DBG_MR, "Invalid Buffer Size\n"); | ||
2444 | ibmr = ERR_PTR(-EINVAL); | ||
2445 | kfree(nesmr); | ||
2446 | goto reg_user_mr_err; | ||
2447 | } | ||
2448 | |||
2449 | region_length += sg_dma_len(&chunk->page_list[nmap_index]); | ||
2450 | chunk_pages = sg_dma_len(&chunk->page_list[nmap_index]) >> 12; | ||
2451 | region_length -= skip_pages << 12; | ||
2452 | for (page_index=skip_pages; page_index < chunk_pages; page_index++) { | ||
2453 | skip_pages = 0; | ||
2454 | if ((page_count!=0)&&(page_count<<12)-(region->offset&(4096-1))>=region->length) | ||
2455 | goto enough_pages; | ||
2456 | if ((page_count&0x01FF) == 0) { | ||
2457 | if (page_count>(1024*512)) { | ||
2458 | ib_umem_release(region); | ||
2459 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | ||
2460 | vpbl.pbl_pbase); | ||
2461 | nes_free_resource(nesadapter, | ||
2462 | nesadapter->allocated_mrs, stag_index); | ||
2463 | kfree(nesmr); | ||
2464 | ibmr = ERR_PTR(-E2BIG); | ||
2465 | goto reg_user_mr_err; | ||
2466 | } | ||
2467 | if (root_pbl_index == 1) { | ||
2468 | root_vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, | ||
2469 | 8192, &root_vpbl.pbl_pbase); | ||
2470 | nes_debug(NES_DBG_MR, "Allocating root PBL, va = %p, pa = 0x%08X\n", | ||
2471 | root_vpbl.pbl_vbase, (unsigned int)root_vpbl.pbl_pbase); | ||
2472 | if (!root_vpbl.pbl_vbase) { | ||
2473 | ib_umem_release(region); | ||
2474 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | ||
2475 | vpbl.pbl_pbase); | ||
2476 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | ||
2477 | stag_index); | ||
2478 | kfree(nesmr); | ||
2479 | ibmr = ERR_PTR(-ENOMEM); | ||
2480 | goto reg_user_mr_err; | ||
2481 | } | ||
2482 | root_vpbl.leaf_vpbl = kzalloc(sizeof(*root_vpbl.leaf_vpbl)*1024, | ||
2483 | GFP_KERNEL); | ||
2484 | if (!root_vpbl.leaf_vpbl) { | ||
2485 | ib_umem_release(region); | ||
2486 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | ||
2487 | root_vpbl.pbl_pbase); | ||
2488 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | ||
2489 | vpbl.pbl_pbase); | ||
2490 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | ||
2491 | stag_index); | ||
2492 | kfree(nesmr); | ||
2493 | ibmr = ERR_PTR(-ENOMEM); | ||
2494 | goto reg_user_mr_err; | ||
2495 | } | ||
2496 | root_vpbl.pbl_vbase[0].pa_low = | ||
2497 | cpu_to_le32((u32)vpbl.pbl_pbase); | ||
2498 | root_vpbl.pbl_vbase[0].pa_high = | ||
2499 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase) >> 32))); | ||
2500 | root_vpbl.leaf_vpbl[0] = vpbl; | ||
2501 | } | ||
2502 | vpbl.pbl_vbase = pci_alloc_consistent(nesdev->pcidev, 4096, | ||
2503 | &vpbl.pbl_pbase); | ||
2504 | nes_debug(NES_DBG_MR, "Allocating leaf PBL, va = %p, pa = 0x%08X\n", | ||
2505 | vpbl.pbl_vbase, (unsigned int)vpbl.pbl_pbase); | ||
2506 | if (!vpbl.pbl_vbase) { | ||
2507 | ib_umem_release(region); | ||
2508 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, stag_index); | ||
2509 | ibmr = ERR_PTR(-ENOMEM); | ||
2510 | kfree(nesmr); | ||
2511 | goto reg_user_mr_err; | ||
2512 | } | ||
2513 | if (1 <= root_pbl_index) { | ||
2514 | root_vpbl.pbl_vbase[root_pbl_index].pa_low = | ||
2515 | cpu_to_le32((u32)vpbl.pbl_pbase); | ||
2516 | root_vpbl.pbl_vbase[root_pbl_index].pa_high = | ||
2517 | cpu_to_le32((u32)((((u64)vpbl.pbl_pbase)>>32))); | ||
2518 | root_vpbl.leaf_vpbl[root_pbl_index] = vpbl; | ||
2519 | } | ||
2520 | root_pbl_index++; | ||
2521 | cur_pbl_index = 0; | ||
2522 | } | ||
2523 | if (single_page) { | ||
2524 | if (page_count != 0) { | ||
2525 | if ((last_dma_addr+4096) != | ||
2526 | (sg_dma_address(&chunk->page_list[nmap_index])+ | ||
2527 | (page_index*4096))) | ||
2528 | single_page = 0; | ||
2529 | last_dma_addr = sg_dma_address(&chunk->page_list[nmap_index])+ | ||
2530 | (page_index*4096); | ||
2531 | } else { | ||
2532 | first_dma_addr = sg_dma_address(&chunk->page_list[nmap_index])+ | ||
2533 | (page_index*4096); | ||
2534 | last_dma_addr = first_dma_addr; | ||
2535 | } | ||
2536 | } | ||
2537 | |||
2538 | vpbl.pbl_vbase[cur_pbl_index].pa_low = | ||
2539 | cpu_to_le32((u32)(sg_dma_address(&chunk->page_list[nmap_index])+ | ||
2540 | (page_index*4096))); | ||
2541 | vpbl.pbl_vbase[cur_pbl_index].pa_high = | ||
2542 | cpu_to_le32((u32)((((u64)(sg_dma_address(&chunk->page_list[nmap_index])+ | ||
2543 | (page_index*4096))) >> 32))); | ||
2544 | cur_pbl_index++; | ||
2545 | page_count++; | ||
2546 | } | ||
2547 | } | ||
2548 | } | ||
2549 | enough_pages: | ||
2550 | nes_debug(NES_DBG_MR, "calculating stag, stag_index=0x%08x, driver_key=0x%08x," | ||
2551 | " stag_key=0x%08x\n", | ||
2552 | stag_index, driver_key, stag_key); | ||
2553 | stag = stag_index << 8; | ||
2554 | stag |= driver_key; | ||
2555 | stag += (u32)stag_key; | ||
2556 | if (stag == 0) { | ||
2557 | stag = 1; | ||
2558 | } | ||
2559 | |||
2560 | iova_start = virt; | ||
2561 | /* Make the leaf PBL the root if only one PBL */ | ||
2562 | if (root_pbl_index == 1) { | ||
2563 | root_vpbl.pbl_pbase = vpbl.pbl_pbase; | ||
2564 | } | ||
2565 | |||
2566 | if (single_page) { | ||
2567 | pbl_count = 0; | ||
2568 | } else { | ||
2569 | pbl_count = root_pbl_index; | ||
2570 | first_dma_addr = 0; | ||
2571 | } | ||
2572 | nes_debug(NES_DBG_MR, "Registering STag 0x%08X, VA = 0x%08X, length = 0x%08X," | ||
2573 | " index = 0x%08X, region->length=0x%08llx, pbl_count = %u\n", | ||
2574 | stag, (unsigned int)iova_start, | ||
2575 | (unsigned int)region_length, stag_index, | ||
2576 | (unsigned long long)region->length, pbl_count); | ||
2577 | ret = nes_reg_mr( nesdev, nespd, stag, region->length, &root_vpbl, | ||
2578 | first_dma_addr, pbl_count, (u16)cur_pbl_index, acc, &iova_start); | ||
2579 | |||
2580 | nes_debug(NES_DBG_MR, "ret=%d\n", ret); | ||
2581 | |||
2582 | if (ret == 0) { | ||
2583 | nesmr->ibmr.rkey = stag; | ||
2584 | nesmr->ibmr.lkey = stag; | ||
2585 | nesmr->mode = IWNES_MEMREG_TYPE_MEM; | ||
2586 | ibmr = &nesmr->ibmr; | ||
2587 | nesmr->pbl_4k = ((pbl_count > 1) || (cur_pbl_index > 32)) ? 1 : 0; | ||
2588 | nesmr->pbls_used = pbl_count; | ||
2589 | if (pbl_count > 1) { | ||
2590 | nesmr->pbls_used++; | ||
2591 | } | ||
2592 | } else { | ||
2593 | ib_umem_release(region); | ||
2594 | kfree(nesmr); | ||
2595 | ibmr = ERR_PTR(-ENOMEM); | ||
2596 | } | ||
2597 | |||
2598 | reg_user_mr_err: | ||
2599 | /* free the resources */ | ||
2600 | if (root_pbl_index == 1) { | ||
2601 | pci_free_consistent(nesdev->pcidev, 4096, vpbl.pbl_vbase, | ||
2602 | vpbl.pbl_pbase); | ||
2603 | } else { | ||
2604 | for (page_index=0; page_index<root_pbl_index; page_index++) { | ||
2605 | pci_free_consistent(nesdev->pcidev, 4096, | ||
2606 | root_vpbl.leaf_vpbl[page_index].pbl_vbase, | ||
2607 | root_vpbl.leaf_vpbl[page_index].pbl_pbase); | ||
2608 | } | ||
2609 | kfree(root_vpbl.leaf_vpbl); | ||
2610 | pci_free_consistent(nesdev->pcidev, 8192, root_vpbl.pbl_vbase, | ||
2611 | root_vpbl.pbl_pbase); | ||
2612 | } | ||
2613 | |||
2614 | nes_debug(NES_DBG_MR, "Leaving, ibmr=%p", ibmr); | ||
2615 | |||
2616 | return ibmr; | ||
2617 | break; | ||
2618 | case IWNES_MEMREG_TYPE_QP: | ||
2619 | case IWNES_MEMREG_TYPE_CQ: | ||
2620 | nespbl = kzalloc(sizeof(*nespbl), GFP_KERNEL); | ||
2621 | if (!nespbl) { | ||
2622 | nes_debug(NES_DBG_MR, "Unable to allocate PBL\n"); | ||
2623 | ib_umem_release(region); | ||
2624 | return ERR_PTR(-ENOMEM); | ||
2625 | } | ||
2626 | nesmr = kzalloc(sizeof(*nesmr), GFP_KERNEL); | ||
2627 | if (!nesmr) { | ||
2628 | ib_umem_release(region); | ||
2629 | kfree(nespbl); | ||
2630 | nes_debug(NES_DBG_MR, "Unable to allocate nesmr\n"); | ||
2631 | return ERR_PTR(-ENOMEM); | ||
2632 | } | ||
2633 | nesmr->region = region; | ||
2634 | nes_ucontext = to_nesucontext(pd->uobject->context); | ||
2635 | pbl_depth = region->length >> 12; | ||
2636 | pbl_depth += (region->length & (4096-1)) ? 1 : 0; | ||
2637 | nespbl->pbl_size = pbl_depth*sizeof(u64); | ||
2638 | if (req.reg_type == IWNES_MEMREG_TYPE_QP) { | ||
2639 | nes_debug(NES_DBG_MR, "Attempting to allocate QP PBL memory"); | ||
2640 | } else { | ||
2641 | nes_debug(NES_DBG_MR, "Attempting to allocate CP PBL memory"); | ||
2642 | } | ||
2643 | |||
2644 | nes_debug(NES_DBG_MR, " %u bytes, %u entries.\n", | ||
2645 | nespbl->pbl_size, pbl_depth); | ||
2646 | pbl = pci_alloc_consistent(nesdev->pcidev, nespbl->pbl_size, | ||
2647 | &nespbl->pbl_pbase); | ||
2648 | if (!pbl) { | ||
2649 | ib_umem_release(region); | ||
2650 | kfree(nesmr); | ||
2651 | kfree(nespbl); | ||
2652 | nes_debug(NES_DBG_MR, "Unable to allocate PBL memory\n"); | ||
2653 | return ERR_PTR(-ENOMEM); | ||
2654 | } | ||
2655 | |||
2656 | nespbl->pbl_vbase = (u64 *)pbl; | ||
2657 | nespbl->user_base = start; | ||
2658 | nes_debug(NES_DBG_MR, "Allocated PBL memory, %u bytes, pbl_pbase=%p," | ||
2659 | " pbl_vbase=%p user_base=0x%lx\n", | ||
2660 | nespbl->pbl_size, (void *)nespbl->pbl_pbase, | ||
2661 | (void*)nespbl->pbl_vbase, nespbl->user_base); | ||
2662 | |||
2663 | list_for_each_entry(chunk, ®ion->chunk_list, list) { | ||
2664 | for (nmap_index = 0; nmap_index < chunk->nmap; ++nmap_index) { | ||
2665 | chunk_pages = sg_dma_len(&chunk->page_list[nmap_index]) >> 12; | ||
2666 | chunk_pages += (sg_dma_len(&chunk->page_list[nmap_index]) & (4096-1)) ? 1 : 0; | ||
2667 | nespbl->page = sg_page(&chunk->page_list[0]); | ||
2668 | for (page_index=0; page_index<chunk_pages; page_index++) { | ||
2669 | ((__le32 *)pbl)[0] = cpu_to_le32((u32) | ||
2670 | (sg_dma_address(&chunk->page_list[nmap_index])+ | ||
2671 | (page_index*4096))); | ||
2672 | ((__le32 *)pbl)[1] = cpu_to_le32(((u64) | ||
2673 | (sg_dma_address(&chunk->page_list[nmap_index])+ | ||
2674 | (page_index*4096)))>>32); | ||
2675 | nes_debug(NES_DBG_MR, "pbl=%p, *pbl=0x%016llx, 0x%08x%08x\n", pbl, | ||
2676 | (unsigned long long)*pbl, | ||
2677 | le32_to_cpu(((__le32 *)pbl)[1]), le32_to_cpu(((__le32 *)pbl)[0])); | ||
2678 | pbl++; | ||
2679 | } | ||
2680 | } | ||
2681 | } | ||
2682 | if (req.reg_type == IWNES_MEMREG_TYPE_QP) { | ||
2683 | list_add_tail(&nespbl->list, &nes_ucontext->qp_reg_mem_list); | ||
2684 | } else { | ||
2685 | list_add_tail(&nespbl->list, &nes_ucontext->cq_reg_mem_list); | ||
2686 | } | ||
2687 | nesmr->ibmr.rkey = -1; | ||
2688 | nesmr->ibmr.lkey = -1; | ||
2689 | nesmr->mode = req.reg_type; | ||
2690 | return &nesmr->ibmr; | ||
2691 | break; | ||
2692 | } | ||
2693 | |||
2694 | return ERR_PTR(-ENOSYS); | ||
2695 | } | ||
2696 | |||
2697 | |||
2698 | /** | ||
2699 | * nes_dereg_mr | ||
2700 | */ | ||
2701 | static int nes_dereg_mr(struct ib_mr *ib_mr) | ||
2702 | { | ||
2703 | struct nes_mr *nesmr = to_nesmr(ib_mr); | ||
2704 | struct nes_vnic *nesvnic = to_nesvnic(ib_mr->device); | ||
2705 | struct nes_device *nesdev = nesvnic->nesdev; | ||
2706 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
2707 | struct nes_hw_cqp_wqe *cqp_wqe; | ||
2708 | struct nes_cqp_request *cqp_request; | ||
2709 | unsigned long flags; | ||
2710 | int ret; | ||
2711 | u16 major_code; | ||
2712 | u16 minor_code; | ||
2713 | |||
2714 | if (nesmr->region) { | ||
2715 | ib_umem_release(nesmr->region); | ||
2716 | } | ||
2717 | if (nesmr->mode != IWNES_MEMREG_TYPE_MEM) { | ||
2718 | kfree(nesmr); | ||
2719 | return 0; | ||
2720 | } | ||
2721 | |||
2722 | /* Deallocate the region with the adapter */ | ||
2723 | |||
2724 | cqp_request = nes_get_cqp_request(nesdev); | ||
2725 | if (cqp_request == NULL) { | ||
2726 | nes_debug(NES_DBG_MR, "Failed to get a cqp_request.\n"); | ||
2727 | return -ENOMEM; | ||
2728 | } | ||
2729 | cqp_request->waiting = 1; | ||
2730 | cqp_wqe = &cqp_request->cqp_wqe; | ||
2731 | |||
2732 | spin_lock_irqsave(&nesadapter->pbl_lock, flags); | ||
2733 | if (nesmr->pbls_used != 0) { | ||
2734 | if (nesmr->pbl_4k) { | ||
2735 | nesadapter->free_4kpbl += nesmr->pbls_used; | ||
2736 | if (nesadapter->free_4kpbl > nesadapter->max_4kpbl) { | ||
2737 | printk(KERN_ERR PFX "free 4KB PBLs(%u) has exceeded the max(%u)\n", | ||
2738 | nesadapter->free_4kpbl, nesadapter->max_4kpbl); | ||
2739 | } | ||
2740 | } else { | ||
2741 | nesadapter->free_256pbl += nesmr->pbls_used; | ||
2742 | if (nesadapter->free_256pbl > nesadapter->max_256pbl) { | ||
2743 | printk(KERN_ERR PFX "free 256B PBLs(%u) has exceeded the max(%u)\n", | ||
2744 | nesadapter->free_256pbl, nesadapter->max_256pbl); | ||
2745 | } | ||
2746 | } | ||
2747 | } | ||
2748 | |||
2749 | spin_unlock_irqrestore(&nesadapter->pbl_lock, flags); | ||
2750 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | ||
2751 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, | ||
2752 | NES_CQP_DEALLOCATE_STAG | NES_CQP_STAG_VA_TO | | ||
2753 | NES_CQP_STAG_DEALLOC_PBLS | NES_CQP_STAG_MR); | ||
2754 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_STAG_WQE_STAG_IDX, ib_mr->rkey); | ||
2755 | |||
2756 | atomic_set(&cqp_request->refcount, 2); | ||
2757 | nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL); | ||
2758 | |||
2759 | /* Wait for CQP */ | ||
2760 | nes_debug(NES_DBG_MR, "Waiting for deallocate STag 0x%08X completed\n", ib_mr->rkey); | ||
2761 | ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0), | ||
2762 | NES_EVENT_TIMEOUT); | ||
2763 | nes_debug(NES_DBG_MR, "Deallocate STag 0x%08X completed, wait_event_timeout ret = %u," | ||
2764 | " CQP Major:Minor codes = 0x%04X:0x%04X\n", | ||
2765 | ib_mr->rkey, ret, cqp_request->major_code, cqp_request->minor_code); | ||
2766 | |||
2767 | nes_free_resource(nesadapter, nesadapter->allocated_mrs, | ||
2768 | (ib_mr->rkey & 0x0fffff00) >> 8); | ||
2769 | |||
2770 | kfree(nesmr); | ||
2771 | |||
2772 | major_code = cqp_request->major_code; | ||
2773 | minor_code = cqp_request->minor_code; | ||
2774 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
2775 | if (cqp_request->dynamic) { | ||
2776 | kfree(cqp_request); | ||
2777 | } else { | ||
2778 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
2779 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
2780 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
2781 | } | ||
2782 | } | ||
2783 | if (!ret) { | ||
2784 | nes_debug(NES_DBG_MR, "Timeout waiting to destroy STag," | ||
2785 | " ib_mr=%p, rkey = 0x%08X\n", | ||
2786 | ib_mr, ib_mr->rkey); | ||
2787 | return -ETIME; | ||
2788 | } else if (major_code) { | ||
2789 | nes_debug(NES_DBG_MR, "Error (0x%04X:0x%04X) while attempting" | ||
2790 | " to destroy STag, ib_mr=%p, rkey = 0x%08X\n", | ||
2791 | major_code, minor_code, ib_mr, ib_mr->rkey); | ||
2792 | return -EIO; | ||
2793 | } else | ||
2794 | return 0; | ||
2795 | } | ||
2796 | |||
2797 | |||
2798 | /** | ||
2799 | * show_rev | ||
2800 | */ | ||
2801 | static ssize_t show_rev(struct class_device *cdev, char *buf) | ||
2802 | { | ||
2803 | struct nes_ib_device *nesibdev = | ||
2804 | container_of(cdev, struct nes_ib_device, ibdev.class_dev); | ||
2805 | struct nes_vnic *nesvnic = nesibdev->nesvnic; | ||
2806 | |||
2807 | nes_debug(NES_DBG_INIT, "\n"); | ||
2808 | return sprintf(buf, "%x\n", nesvnic->nesdev->nesadapter->hw_rev); | ||
2809 | } | ||
2810 | |||
2811 | |||
2812 | /** | ||
2813 | * show_fw_ver | ||
2814 | */ | ||
2815 | static ssize_t show_fw_ver(struct class_device *cdev, char *buf) | ||
2816 | { | ||
2817 | struct nes_ib_device *nesibdev = | ||
2818 | container_of(cdev, struct nes_ib_device, ibdev.class_dev); | ||
2819 | struct nes_vnic *nesvnic = nesibdev->nesvnic; | ||
2820 | |||
2821 | nes_debug(NES_DBG_INIT, "\n"); | ||
2822 | return sprintf(buf, "%x.%x.%x\n", | ||
2823 | (int)(nesvnic->nesdev->nesadapter->fw_ver >> 32), | ||
2824 | (int)(nesvnic->nesdev->nesadapter->fw_ver >> 16) & 0xffff, | ||
2825 | (int)(nesvnic->nesdev->nesadapter->fw_ver & 0xffff)); | ||
2826 | } | ||
2827 | |||
2828 | |||
2829 | /** | ||
2830 | * show_hca | ||
2831 | */ | ||
2832 | static ssize_t show_hca(struct class_device *cdev, char *buf) | ||
2833 | { | ||
2834 | nes_debug(NES_DBG_INIT, "\n"); | ||
2835 | return sprintf(buf, "NES020\n"); | ||
2836 | } | ||
2837 | |||
2838 | |||
2839 | /** | ||
2840 | * show_board | ||
2841 | */ | ||
2842 | static ssize_t show_board(struct class_device *cdev, char *buf) | ||
2843 | { | ||
2844 | nes_debug(NES_DBG_INIT, "\n"); | ||
2845 | return sprintf(buf, "%.*s\n", 32, "NES020 Board ID"); | ||
2846 | } | ||
2847 | |||
2848 | |||
2849 | static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); | ||
2850 | static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | ||
2851 | static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | ||
2852 | static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | ||
2853 | |||
2854 | static struct class_device_attribute *nes_class_attributes[] = { | ||
2855 | &class_device_attr_hw_rev, | ||
2856 | &class_device_attr_fw_ver, | ||
2857 | &class_device_attr_hca_type, | ||
2858 | &class_device_attr_board_id | ||
2859 | }; | ||
2860 | |||
2861 | |||
2862 | /** | ||
2863 | * nes_query_qp | ||
2864 | */ | ||
2865 | static int nes_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | ||
2866 | int attr_mask, struct ib_qp_init_attr *init_attr) | ||
2867 | { | ||
2868 | struct nes_qp *nesqp = to_nesqp(ibqp); | ||
2869 | |||
2870 | nes_debug(NES_DBG_QP, "\n"); | ||
2871 | |||
2872 | attr->qp_access_flags = 0; | ||
2873 | attr->cap.max_send_wr = nesqp->hwqp.sq_size; | ||
2874 | attr->cap.max_recv_wr = nesqp->hwqp.rq_size; | ||
2875 | attr->cap.max_recv_sge = 1; | ||
2876 | if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) { | ||
2877 | init_attr->cap.max_inline_data = 0; | ||
2878 | } else { | ||
2879 | init_attr->cap.max_inline_data = 64; | ||
2880 | } | ||
2881 | |||
2882 | init_attr->event_handler = nesqp->ibqp.event_handler; | ||
2883 | init_attr->qp_context = nesqp->ibqp.qp_context; | ||
2884 | init_attr->send_cq = nesqp->ibqp.send_cq; | ||
2885 | init_attr->recv_cq = nesqp->ibqp.recv_cq; | ||
2886 | init_attr->srq = nesqp->ibqp.srq = nesqp->ibqp.srq; | ||
2887 | init_attr->cap = attr->cap; | ||
2888 | |||
2889 | return 0; | ||
2890 | } | ||
2891 | |||
2892 | |||
2893 | /** | ||
2894 | * nes_hw_modify_qp | ||
2895 | */ | ||
2896 | int nes_hw_modify_qp(struct nes_device *nesdev, struct nes_qp *nesqp, | ||
2897 | u32 next_iwarp_state, u32 wait_completion) | ||
2898 | { | ||
2899 | struct nes_hw_cqp_wqe *cqp_wqe; | ||
2900 | /* struct iw_cm_id *cm_id = nesqp->cm_id; */ | ||
2901 | /* struct iw_cm_event cm_event; */ | ||
2902 | struct nes_cqp_request *cqp_request; | ||
2903 | unsigned long flags; | ||
2904 | int ret; | ||
2905 | u16 major_code; | ||
2906 | |||
2907 | nes_debug(NES_DBG_MOD_QP, "QP%u, refcount=%d\n", | ||
2908 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount)); | ||
2909 | |||
2910 | cqp_request = nes_get_cqp_request(nesdev); | ||
2911 | if (cqp_request == NULL) { | ||
2912 | nes_debug(NES_DBG_MOD_QP, "Failed to get a cqp_request.\n"); | ||
2913 | return -ENOMEM; | ||
2914 | } | ||
2915 | if (wait_completion) { | ||
2916 | cqp_request->waiting = 1; | ||
2917 | } else { | ||
2918 | cqp_request->waiting = 0; | ||
2919 | } | ||
2920 | cqp_wqe = &cqp_request->cqp_wqe; | ||
2921 | |||
2922 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, | ||
2923 | NES_CQP_MODIFY_QP | NES_CQP_QP_TYPE_IWARP | next_iwarp_state); | ||
2924 | nes_debug(NES_DBG_MOD_QP, "using next_iwarp_state=%08x, wqe_words=%08x\n", | ||
2925 | next_iwarp_state, le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX])); | ||
2926 | nes_fill_init_cqp_wqe(cqp_wqe, nesdev); | ||
2927 | set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX, nesqp->hwqp.qp_id); | ||
2928 | set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, (u64)nesqp->nesqp_context_pbase); | ||
2929 | |||
2930 | atomic_set(&cqp_request->refcount, 2); | ||
2931 | nes_post_cqp_request(nesdev, cqp_request, NES_CQP_REQUEST_RING_DOORBELL); | ||
2932 | |||
2933 | /* Wait for CQP */ | ||
2934 | if (wait_completion) { | ||
2935 | /* nes_debug(NES_DBG_MOD_QP, "Waiting for modify iWARP QP%u to complete.\n", | ||
2936 | nesqp->hwqp.qp_id); */ | ||
2937 | ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0), | ||
2938 | NES_EVENT_TIMEOUT); | ||
2939 | nes_debug(NES_DBG_MOD_QP, "Modify iwarp QP%u completed, wait_event_timeout ret=%u, " | ||
2940 | "CQP Major:Minor codes = 0x%04X:0x%04X.\n", | ||
2941 | nesqp->hwqp.qp_id, ret, cqp_request->major_code, cqp_request->minor_code); | ||
2942 | major_code = cqp_request->major_code; | ||
2943 | if (major_code) { | ||
2944 | nes_debug(NES_DBG_MOD_QP, "Modify iwarp QP%u failed" | ||
2945 | "CQP Major:Minor codes = 0x%04X:0x%04X, intended next state = 0x%08X.\n", | ||
2946 | nesqp->hwqp.qp_id, cqp_request->major_code, | ||
2947 | cqp_request->minor_code, next_iwarp_state); | ||
2948 | } | ||
2949 | if (atomic_dec_and_test(&cqp_request->refcount)) { | ||
2950 | if (cqp_request->dynamic) { | ||
2951 | kfree(cqp_request); | ||
2952 | } else { | ||
2953 | spin_lock_irqsave(&nesdev->cqp.lock, flags); | ||
2954 | list_add_tail(&cqp_request->list, &nesdev->cqp_avail_reqs); | ||
2955 | spin_unlock_irqrestore(&nesdev->cqp.lock, flags); | ||
2956 | } | ||
2957 | } | ||
2958 | if (!ret) | ||
2959 | return -ETIME; | ||
2960 | else if (major_code) | ||
2961 | return -EIO; | ||
2962 | else | ||
2963 | return 0; | ||
2964 | } else { | ||
2965 | return 0; | ||
2966 | } | ||
2967 | } | ||
2968 | |||
2969 | |||
2970 | /** | ||
2971 | * nes_modify_qp | ||
2972 | */ | ||
2973 | int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | ||
2974 | int attr_mask, struct ib_udata *udata) | ||
2975 | { | ||
2976 | struct nes_qp *nesqp = to_nesqp(ibqp); | ||
2977 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | ||
2978 | struct nes_device *nesdev = nesvnic->nesdev; | ||
2979 | /* u32 cqp_head; */ | ||
2980 | /* u32 counter; */ | ||
2981 | u32 next_iwarp_state = 0; | ||
2982 | int err; | ||
2983 | unsigned long qplockflags; | ||
2984 | int ret; | ||
2985 | u16 original_last_aeq; | ||
2986 | u8 issue_modify_qp = 0; | ||
2987 | u8 issue_disconnect = 0; | ||
2988 | u8 dont_wait = 0; | ||
2989 | |||
2990 | nes_debug(NES_DBG_MOD_QP, "QP%u: QP State=%u, cur QP State=%u," | ||
2991 | " iwarp_state=0x%X, refcount=%d\n", | ||
2992 | nesqp->hwqp.qp_id, attr->qp_state, nesqp->ibqp_state, | ||
2993 | nesqp->iwarp_state, atomic_read(&nesqp->refcount)); | ||
2994 | |||
2995 | nes_add_ref(&nesqp->ibqp); | ||
2996 | spin_lock_irqsave(&nesqp->lock, qplockflags); | ||
2997 | |||
2998 | nes_debug(NES_DBG_MOD_QP, "QP%u: hw_iwarp_state=0x%X, hw_tcp_state=0x%X," | ||
2999 | " QP Access Flags=0x%X, attr_mask = 0x%0x\n", | ||
3000 | nesqp->hwqp.qp_id, nesqp->hw_iwarp_state, | ||
3001 | nesqp->hw_tcp_state, attr->qp_access_flags, attr_mask); | ||
3002 | |||
3003 | if (attr_mask & IB_QP_STATE) { | ||
3004 | switch (attr->qp_state) { | ||
3005 | case IB_QPS_INIT: | ||
3006 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = init\n", | ||
3007 | nesqp->hwqp.qp_id); | ||
3008 | if (nesqp->iwarp_state > (u32)NES_CQP_QP_IWARP_STATE_IDLE) { | ||
3009 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3010 | nes_rem_ref(&nesqp->ibqp); | ||
3011 | return -EINVAL; | ||
3012 | } | ||
3013 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_IDLE; | ||
3014 | issue_modify_qp = 1; | ||
3015 | break; | ||
3016 | case IB_QPS_RTR: | ||
3017 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = rtr\n", | ||
3018 | nesqp->hwqp.qp_id); | ||
3019 | if (nesqp->iwarp_state>(u32)NES_CQP_QP_IWARP_STATE_IDLE) { | ||
3020 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3021 | nes_rem_ref(&nesqp->ibqp); | ||
3022 | return -EINVAL; | ||
3023 | } | ||
3024 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_IDLE; | ||
3025 | issue_modify_qp = 1; | ||
3026 | break; | ||
3027 | case IB_QPS_RTS: | ||
3028 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = rts\n", | ||
3029 | nesqp->hwqp.qp_id); | ||
3030 | if (nesqp->iwarp_state>(u32)NES_CQP_QP_IWARP_STATE_RTS) { | ||
3031 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3032 | nes_rem_ref(&nesqp->ibqp); | ||
3033 | return -EINVAL; | ||
3034 | } | ||
3035 | if (nesqp->cm_id == NULL) { | ||
3036 | nes_debug(NES_DBG_MOD_QP, "QP%u: Failing attempt to move QP to RTS without a CM_ID. \n", | ||
3037 | nesqp->hwqp.qp_id ); | ||
3038 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3039 | nes_rem_ref(&nesqp->ibqp); | ||
3040 | return -EINVAL; | ||
3041 | } | ||
3042 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_RTS; | ||
3043 | if (nesqp->iwarp_state != NES_CQP_QP_IWARP_STATE_RTS) | ||
3044 | next_iwarp_state |= NES_CQP_QP_CONTEXT_VALID | | ||
3045 | NES_CQP_QP_ARP_VALID | NES_CQP_QP_ORD_VALID; | ||
3046 | issue_modify_qp = 1; | ||
3047 | nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_ESTABLISHED; | ||
3048 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_RTS; | ||
3049 | nesqp->hte_added = 1; | ||
3050 | break; | ||
3051 | case IB_QPS_SQD: | ||
3052 | issue_modify_qp = 1; | ||
3053 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state=closing. SQ head=%u, SQ tail=%u\n", | ||
3054 | nesqp->hwqp.qp_id, nesqp->hwqp.sq_head, nesqp->hwqp.sq_tail); | ||
3055 | if (nesqp->iwarp_state == (u32)NES_CQP_QP_IWARP_STATE_CLOSING) { | ||
3056 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3057 | nes_rem_ref(&nesqp->ibqp); | ||
3058 | return 0; | ||
3059 | } else { | ||
3060 | if (nesqp->iwarp_state > (u32)NES_CQP_QP_IWARP_STATE_CLOSING) { | ||
3061 | nes_debug(NES_DBG_MOD_QP, "QP%u: State change to closing" | ||
3062 | " ignored due to current iWARP state\n", | ||
3063 | nesqp->hwqp.qp_id); | ||
3064 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3065 | nes_rem_ref(&nesqp->ibqp); | ||
3066 | return -EINVAL; | ||
3067 | } | ||
3068 | if (nesqp->hw_iwarp_state != NES_AEQE_IWARP_STATE_RTS) { | ||
3069 | nes_debug(NES_DBG_MOD_QP, "QP%u: State change to closing" | ||
3070 | " already done based on hw state.\n", | ||
3071 | nesqp->hwqp.qp_id); | ||
3072 | issue_modify_qp = 0; | ||
3073 | nesqp->in_disconnect = 0; | ||
3074 | } | ||
3075 | switch (nesqp->hw_iwarp_state) { | ||
3076 | case NES_AEQE_IWARP_STATE_CLOSING: | ||
3077 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING; | ||
3078 | case NES_AEQE_IWARP_STATE_TERMINATE: | ||
3079 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_TERMINATE; | ||
3080 | break; | ||
3081 | case NES_AEQE_IWARP_STATE_ERROR: | ||
3082 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR; | ||
3083 | break; | ||
3084 | default: | ||
3085 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING; | ||
3086 | nesqp->in_disconnect = 1; | ||
3087 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING; | ||
3088 | break; | ||
3089 | } | ||
3090 | } | ||
3091 | break; | ||
3092 | case IB_QPS_SQE: | ||
3093 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = terminate\n", | ||
3094 | nesqp->hwqp.qp_id); | ||
3095 | if (nesqp->iwarp_state>=(u32)NES_CQP_QP_IWARP_STATE_TERMINATE) { | ||
3096 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3097 | nes_rem_ref(&nesqp->ibqp); | ||
3098 | return -EINVAL; | ||
3099 | } | ||
3100 | /* next_iwarp_state = (NES_CQP_QP_IWARP_STATE_TERMINATE | 0x02000000); */ | ||
3101 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_TERMINATE; | ||
3102 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_TERMINATE; | ||
3103 | issue_modify_qp = 1; | ||
3104 | nesqp->in_disconnect = 1; | ||
3105 | break; | ||
3106 | case IB_QPS_ERR: | ||
3107 | case IB_QPS_RESET: | ||
3108 | if (nesqp->iwarp_state == (u32)NES_CQP_QP_IWARP_STATE_ERROR) { | ||
3109 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3110 | nes_rem_ref(&nesqp->ibqp); | ||
3111 | return -EINVAL; | ||
3112 | } | ||
3113 | nes_debug(NES_DBG_MOD_QP, "QP%u: new state = error\n", | ||
3114 | nesqp->hwqp.qp_id); | ||
3115 | next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR; | ||
3116 | /* next_iwarp_state = (NES_CQP_QP_IWARP_STATE_TERMINATE | 0x02000000); */ | ||
3117 | if (nesqp->hte_added) { | ||
3118 | nes_debug(NES_DBG_MOD_QP, "set CQP_QP_DEL_HTE\n"); | ||
3119 | next_iwarp_state |= NES_CQP_QP_DEL_HTE; | ||
3120 | nesqp->hte_added = 0; | ||
3121 | } | ||
3122 | if ((nesqp->hw_tcp_state > NES_AEQE_TCP_STATE_CLOSED) && | ||
3123 | (nesqp->hw_tcp_state != NES_AEQE_TCP_STATE_TIME_WAIT)) { | ||
3124 | next_iwarp_state |= NES_CQP_QP_RESET; | ||
3125 | nesqp->in_disconnect = 1; | ||
3126 | } else { | ||
3127 | nes_debug(NES_DBG_MOD_QP, "QP%u NOT setting NES_CQP_QP_RESET since TCP state = %u\n", | ||
3128 | nesqp->hwqp.qp_id, nesqp->hw_tcp_state); | ||
3129 | dont_wait = 1; | ||
3130 | } | ||
3131 | issue_modify_qp = 1; | ||
3132 | nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_ERROR; | ||
3133 | break; | ||
3134 | default: | ||
3135 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3136 | nes_rem_ref(&nesqp->ibqp); | ||
3137 | return -EINVAL; | ||
3138 | break; | ||
3139 | } | ||
3140 | |||
3141 | nesqp->ibqp_state = attr->qp_state; | ||
3142 | if (((nesqp->iwarp_state & NES_CQP_QP_IWARP_STATE_MASK) == | ||
3143 | (u32)NES_CQP_QP_IWARP_STATE_RTS) && | ||
3144 | ((next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK) > | ||
3145 | (u32)NES_CQP_QP_IWARP_STATE_RTS)) { | ||
3146 | nesqp->iwarp_state = next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK; | ||
3147 | nes_debug(NES_DBG_MOD_QP, "Change nesqp->iwarp_state=%08x\n", | ||
3148 | nesqp->iwarp_state); | ||
3149 | issue_disconnect = 1; | ||
3150 | } else { | ||
3151 | nesqp->iwarp_state = next_iwarp_state & NES_CQP_QP_IWARP_STATE_MASK; | ||
3152 | nes_debug(NES_DBG_MOD_QP, "Change nesqp->iwarp_state=%08x\n", | ||
3153 | nesqp->iwarp_state); | ||
3154 | } | ||
3155 | } | ||
3156 | |||
3157 | if (attr_mask & IB_QP_ACCESS_FLAGS) { | ||
3158 | if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE) { | ||
3159 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_WRITE_EN | | ||
3160 | NES_QPCONTEXT_MISC_RDMA_READ_EN); | ||
3161 | issue_modify_qp = 1; | ||
3162 | } | ||
3163 | if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE) { | ||
3164 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_WRITE_EN); | ||
3165 | issue_modify_qp = 1; | ||
3166 | } | ||
3167 | if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ) { | ||
3168 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_READ_EN); | ||
3169 | issue_modify_qp = 1; | ||
3170 | } | ||
3171 | if (attr->qp_access_flags & IB_ACCESS_MW_BIND) { | ||
3172 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_WBIND_EN); | ||
3173 | issue_modify_qp = 1; | ||
3174 | } | ||
3175 | |||
3176 | if (nesqp->user_mode) { | ||
3177 | nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_RDMA_WRITE_EN | | ||
3178 | NES_QPCONTEXT_MISC_RDMA_READ_EN); | ||
3179 | issue_modify_qp = 1; | ||
3180 | } | ||
3181 | } | ||
3182 | |||
3183 | original_last_aeq = nesqp->last_aeq; | ||
3184 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3185 | |||
3186 | nes_debug(NES_DBG_MOD_QP, "issue_modify_qp=%u\n", issue_modify_qp); | ||
3187 | |||
3188 | ret = 0; | ||
3189 | |||
3190 | |||
3191 | if (issue_modify_qp) { | ||
3192 | nes_debug(NES_DBG_MOD_QP, "call nes_hw_modify_qp\n"); | ||
3193 | ret = nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 1); | ||
3194 | if (ret) | ||
3195 | nes_debug(NES_DBG_MOD_QP, "nes_hw_modify_qp (next_iwarp_state = 0x%08X)" | ||
3196 | " failed for QP%u.\n", | ||
3197 | next_iwarp_state, nesqp->hwqp.qp_id); | ||
3198 | |||
3199 | } | ||
3200 | |||
3201 | if ((issue_modify_qp) && (nesqp->ibqp_state > IB_QPS_RTS)) { | ||
3202 | nes_debug(NES_DBG_MOD_QP, "QP%u Issued ModifyQP refcount (%d)," | ||
3203 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | ||
3204 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | ||
3205 | original_last_aeq, nesqp->last_aeq); | ||
3206 | if ((!ret) || | ||
3207 | ((original_last_aeq != NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE) && | ||
3208 | (ret))) { | ||
3209 | if (dont_wait) { | ||
3210 | if (nesqp->cm_id && nesqp->hw_tcp_state != 0) { | ||
3211 | nes_debug(NES_DBG_MOD_QP, "QP%u Queuing fake disconnect for QP refcount (%d)," | ||
3212 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | ||
3213 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | ||
3214 | original_last_aeq, nesqp->last_aeq); | ||
3215 | /* this one is for the cm_disconnect thread */ | ||
3216 | nes_add_ref(&nesqp->ibqp); | ||
3217 | spin_lock_irqsave(&nesqp->lock, qplockflags); | ||
3218 | nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; | ||
3219 | nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT; | ||
3220 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3221 | nes_cm_disconn(nesqp); | ||
3222 | } else { | ||
3223 | nes_debug(NES_DBG_MOD_QP, "QP%u No fake disconnect, QP refcount=%d\n", | ||
3224 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount)); | ||
3225 | nes_rem_ref(&nesqp->ibqp); | ||
3226 | } | ||
3227 | } else { | ||
3228 | spin_lock_irqsave(&nesqp->lock, qplockflags); | ||
3229 | if (nesqp->cm_id) { | ||
3230 | /* These two are for the timer thread */ | ||
3231 | if (atomic_inc_return(&nesqp->close_timer_started) == 1) { | ||
3232 | nes_add_ref(&nesqp->ibqp); | ||
3233 | nesqp->cm_id->add_ref(nesqp->cm_id); | ||
3234 | nes_debug(NES_DBG_MOD_QP, "QP%u Not decrementing QP refcount (%d)," | ||
3235 | " need ae to finish up, original_last_aeq = 0x%04X." | ||
3236 | " last_aeq = 0x%04X, scheduling timer.\n", | ||
3237 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | ||
3238 | original_last_aeq, nesqp->last_aeq); | ||
3239 | schedule_nes_timer(nesqp->cm_node, (struct sk_buff *) nesqp, NES_TIMER_TYPE_CLOSE, 1, 0); | ||
3240 | } | ||
3241 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3242 | } else { | ||
3243 | spin_unlock_irqrestore(&nesqp->lock, qplockflags); | ||
3244 | nes_debug(NES_DBG_MOD_QP, "QP%u Not decrementing QP refcount (%d)," | ||
3245 | " need ae to finish up, original_last_aeq = 0x%04X." | ||
3246 | " last_aeq = 0x%04X.\n", | ||
3247 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | ||
3248 | original_last_aeq, nesqp->last_aeq); | ||
3249 | } | ||
3250 | } | ||
3251 | } else { | ||
3252 | nes_debug(NES_DBG_MOD_QP, "QP%u Decrementing QP refcount (%d), No ae to finish up," | ||
3253 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | ||
3254 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | ||
3255 | original_last_aeq, nesqp->last_aeq); | ||
3256 | nes_rem_ref(&nesqp->ibqp); | ||
3257 | } | ||
3258 | } else { | ||
3259 | nes_debug(NES_DBG_MOD_QP, "QP%u Decrementing QP refcount (%d), No ae to finish up," | ||
3260 | " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", | ||
3261 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), | ||
3262 | original_last_aeq, nesqp->last_aeq); | ||
3263 | nes_rem_ref(&nesqp->ibqp); | ||
3264 | } | ||
3265 | |||
3266 | err = 0; | ||
3267 | |||
3268 | nes_debug(NES_DBG_MOD_QP, "QP%u Leaving, refcount=%d\n", | ||
3269 | nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount)); | ||
3270 | |||
3271 | return err; | ||
3272 | } | ||
3273 | |||
3274 | |||
3275 | /** | ||
3276 | * nes_muticast_attach | ||
3277 | */ | ||
3278 | static int nes_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | ||
3279 | { | ||
3280 | nes_debug(NES_DBG_INIT, "\n"); | ||
3281 | return -ENOSYS; | ||
3282 | } | ||
3283 | |||
3284 | |||
3285 | /** | ||
3286 | * nes_multicast_detach | ||
3287 | */ | ||
3288 | static int nes_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | ||
3289 | { | ||
3290 | nes_debug(NES_DBG_INIT, "\n"); | ||
3291 | return -ENOSYS; | ||
3292 | } | ||
3293 | |||
3294 | |||
3295 | /** | ||
3296 | * nes_process_mad | ||
3297 | */ | ||
3298 | static int nes_process_mad(struct ib_device *ibdev, int mad_flags, | ||
3299 | u8 port_num, struct ib_wc *in_wc, struct ib_grh *in_grh, | ||
3300 | struct ib_mad *in_mad, struct ib_mad *out_mad) | ||
3301 | { | ||
3302 | nes_debug(NES_DBG_INIT, "\n"); | ||
3303 | return -ENOSYS; | ||
3304 | } | ||
3305 | |||
3306 | static inline void | ||
3307 | fill_wqe_sg_send(struct nes_hw_qp_wqe *wqe, struct ib_send_wr *ib_wr, u32 uselkey) | ||
3308 | { | ||
3309 | int sge_index; | ||
3310 | int total_payload_length = 0; | ||
3311 | for (sge_index = 0; sge_index < ib_wr->num_sge; sge_index++) { | ||
3312 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_FRAG0_LOW_IDX+(sge_index*4), | ||
3313 | ib_wr->sg_list[sge_index].addr); | ||
3314 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_LENGTH0_IDX + (sge_index*4), | ||
3315 | ib_wr->sg_list[sge_index].length); | ||
3316 | if (uselkey) | ||
3317 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_STAG0_IDX + (sge_index*4), | ||
3318 | (ib_wr->sg_list[sge_index].lkey)); | ||
3319 | else | ||
3320 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_STAG0_IDX + (sge_index*4), 0); | ||
3321 | |||
3322 | total_payload_length += ib_wr->sg_list[sge_index].length; | ||
3323 | } | ||
3324 | nes_debug(NES_DBG_IW_TX, "UC UC UC, sending total_payload_length=%u \n", | ||
3325 | total_payload_length); | ||
3326 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX, | ||
3327 | total_payload_length); | ||
3328 | } | ||
3329 | |||
3330 | /** | ||
3331 | * nes_post_send | ||
3332 | */ | ||
3333 | static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr, | ||
3334 | struct ib_send_wr **bad_wr) | ||
3335 | { | ||
3336 | u64 u64temp; | ||
3337 | unsigned long flags = 0; | ||
3338 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | ||
3339 | struct nes_device *nesdev = nesvnic->nesdev; | ||
3340 | struct nes_qp *nesqp = to_nesqp(ibqp); | ||
3341 | struct nes_hw_qp_wqe *wqe; | ||
3342 | int err; | ||
3343 | u32 qsize = nesqp->hwqp.sq_size; | ||
3344 | u32 head; | ||
3345 | u32 wqe_misc; | ||
3346 | u32 wqe_count; | ||
3347 | u32 counter; | ||
3348 | u32 total_payload_length; | ||
3349 | |||
3350 | err = 0; | ||
3351 | wqe_misc = 0; | ||
3352 | wqe_count = 0; | ||
3353 | total_payload_length = 0; | ||
3354 | |||
3355 | if (nesqp->ibqp_state > IB_QPS_RTS) | ||
3356 | return -EINVAL; | ||
3357 | |||
3358 | spin_lock_irqsave(&nesqp->lock, flags); | ||
3359 | |||
3360 | head = nesqp->hwqp.sq_head; | ||
3361 | |||
3362 | while (ib_wr) { | ||
3363 | /* Check for SQ overflow */ | ||
3364 | if (((head + (2 * qsize) - nesqp->hwqp.sq_tail) % qsize) == (qsize - 1)) { | ||
3365 | err = -EINVAL; | ||
3366 | break; | ||
3367 | } | ||
3368 | |||
3369 | wqe = &nesqp->hwqp.sq_vbase[head]; | ||
3370 | /* nes_debug(NES_DBG_IW_TX, "processing sq wqe for QP%u at %p, head = %u.\n", | ||
3371 | nesqp->hwqp.qp_id, wqe, head); */ | ||
3372 | nes_fill_init_qp_wqe(wqe, nesqp, head); | ||
3373 | u64temp = (u64)(ib_wr->wr_id); | ||
3374 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, | ||
3375 | u64temp); | ||
3376 | switch (ib_wr->opcode) { | ||
3377 | case IB_WR_SEND: | ||
3378 | if (ib_wr->send_flags & IB_SEND_SOLICITED) { | ||
3379 | wqe_misc = NES_IWARP_SQ_OP_SENDSE; | ||
3380 | } else { | ||
3381 | wqe_misc = NES_IWARP_SQ_OP_SEND; | ||
3382 | } | ||
3383 | if (ib_wr->num_sge > nesdev->nesadapter->max_sge) { | ||
3384 | err = -EINVAL; | ||
3385 | break; | ||
3386 | } | ||
3387 | if (ib_wr->send_flags & IB_SEND_FENCE) { | ||
3388 | wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE; | ||
3389 | } | ||
3390 | if ((ib_wr->send_flags & IB_SEND_INLINE) && | ||
3391 | ((nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) == 0) && | ||
3392 | (ib_wr->sg_list[0].length <= 64)) { | ||
3393 | memcpy(&wqe->wqe_words[NES_IWARP_SQ_WQE_IMM_DATA_START_IDX], | ||
3394 | (void *)(unsigned long)ib_wr->sg_list[0].addr, ib_wr->sg_list[0].length); | ||
3395 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX, | ||
3396 | ib_wr->sg_list[0].length); | ||
3397 | wqe_misc |= NES_IWARP_SQ_WQE_IMM_DATA; | ||
3398 | } else { | ||
3399 | fill_wqe_sg_send(wqe, ib_wr, 1); | ||
3400 | } | ||
3401 | |||
3402 | break; | ||
3403 | case IB_WR_RDMA_WRITE: | ||
3404 | wqe_misc = NES_IWARP_SQ_OP_RDMAW; | ||
3405 | if (ib_wr->num_sge > nesdev->nesadapter->max_sge) { | ||
3406 | nes_debug(NES_DBG_IW_TX, "Exceeded max sge, ib_wr=%u, max=%u\n", | ||
3407 | ib_wr->num_sge, | ||
3408 | nesdev->nesadapter->max_sge); | ||
3409 | err = -EINVAL; | ||
3410 | break; | ||
3411 | } | ||
3412 | if (ib_wr->send_flags & IB_SEND_FENCE) { | ||
3413 | wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE; | ||
3414 | } | ||
3415 | |||
3416 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_STAG_IDX, | ||
3417 | ib_wr->wr.rdma.rkey); | ||
3418 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX, | ||
3419 | ib_wr->wr.rdma.remote_addr); | ||
3420 | |||
3421 | if ((ib_wr->send_flags & IB_SEND_INLINE) && | ||
3422 | ((nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) == 0) && | ||
3423 | (ib_wr->sg_list[0].length <= 64)) { | ||
3424 | memcpy(&wqe->wqe_words[NES_IWARP_SQ_WQE_IMM_DATA_START_IDX], | ||
3425 | (void *)(unsigned long)ib_wr->sg_list[0].addr, ib_wr->sg_list[0].length); | ||
3426 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX, | ||
3427 | ib_wr->sg_list[0].length); | ||
3428 | wqe_misc |= NES_IWARP_SQ_WQE_IMM_DATA; | ||
3429 | } else { | ||
3430 | fill_wqe_sg_send(wqe, ib_wr, 1); | ||
3431 | } | ||
3432 | wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX] = | ||
3433 | wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX]; | ||
3434 | break; | ||
3435 | case IB_WR_RDMA_READ: | ||
3436 | /* iWARP only supports 1 sge for RDMA reads */ | ||
3437 | if (ib_wr->num_sge > 1) { | ||
3438 | nes_debug(NES_DBG_IW_TX, "Exceeded max sge, ib_wr=%u, max=1\n", | ||
3439 | ib_wr->num_sge); | ||
3440 | err = -EINVAL; | ||
3441 | break; | ||
3442 | } | ||
3443 | wqe_misc = NES_IWARP_SQ_OP_RDMAR; | ||
3444 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX, | ||
3445 | ib_wr->wr.rdma.remote_addr); | ||
3446 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_STAG_IDX, | ||
3447 | ib_wr->wr.rdma.rkey); | ||
3448 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX, | ||
3449 | ib_wr->sg_list->length); | ||
3450 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_FRAG0_LOW_IDX, | ||
3451 | ib_wr->sg_list->addr); | ||
3452 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_STAG0_IDX, | ||
3453 | ib_wr->sg_list->lkey); | ||
3454 | break; | ||
3455 | default: | ||
3456 | /* error */ | ||
3457 | err = -EINVAL; | ||
3458 | break; | ||
3459 | } | ||
3460 | |||
3461 | if (ib_wr->send_flags & IB_SEND_SIGNALED) { | ||
3462 | wqe_misc |= NES_IWARP_SQ_WQE_SIGNALED_COMPL; | ||
3463 | } | ||
3464 | wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = cpu_to_le32(wqe_misc); | ||
3465 | |||
3466 | ib_wr = ib_wr->next; | ||
3467 | head++; | ||
3468 | wqe_count++; | ||
3469 | if (head >= qsize) | ||
3470 | head = 0; | ||
3471 | |||
3472 | } | ||
3473 | |||
3474 | nesqp->hwqp.sq_head = head; | ||
3475 | barrier(); | ||
3476 | while (wqe_count) { | ||
3477 | counter = min(wqe_count, ((u32)255)); | ||
3478 | wqe_count -= counter; | ||
3479 | nes_write32(nesdev->regs + NES_WQE_ALLOC, | ||
3480 | (counter << 24) | 0x00800000 | nesqp->hwqp.qp_id); | ||
3481 | } | ||
3482 | |||
3483 | spin_unlock_irqrestore(&nesqp->lock, flags); | ||
3484 | |||
3485 | if (err) | ||
3486 | *bad_wr = ib_wr; | ||
3487 | return err; | ||
3488 | } | ||
3489 | |||
3490 | |||
3491 | /** | ||
3492 | * nes_post_recv | ||
3493 | */ | ||
3494 | static int nes_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *ib_wr, | ||
3495 | struct ib_recv_wr **bad_wr) | ||
3496 | { | ||
3497 | u64 u64temp; | ||
3498 | unsigned long flags = 0; | ||
3499 | struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); | ||
3500 | struct nes_device *nesdev = nesvnic->nesdev; | ||
3501 | struct nes_qp *nesqp = to_nesqp(ibqp); | ||
3502 | struct nes_hw_qp_wqe *wqe; | ||
3503 | int err = 0; | ||
3504 | int sge_index; | ||
3505 | u32 qsize = nesqp->hwqp.rq_size; | ||
3506 | u32 head; | ||
3507 | u32 wqe_count = 0; | ||
3508 | u32 counter; | ||
3509 | u32 total_payload_length; | ||
3510 | |||
3511 | if (nesqp->ibqp_state > IB_QPS_RTS) | ||
3512 | return -EINVAL; | ||
3513 | |||
3514 | spin_lock_irqsave(&nesqp->lock, flags); | ||
3515 | |||
3516 | head = nesqp->hwqp.rq_head; | ||
3517 | |||
3518 | while (ib_wr) { | ||
3519 | if (ib_wr->num_sge > nesdev->nesadapter->max_sge) { | ||
3520 | err = -EINVAL; | ||
3521 | break; | ||
3522 | } | ||
3523 | /* Check for RQ overflow */ | ||
3524 | if (((head + (2 * qsize) - nesqp->hwqp.rq_tail) % qsize) == (qsize - 1)) { | ||
3525 | err = -EINVAL; | ||
3526 | break; | ||
3527 | } | ||
3528 | |||
3529 | nes_debug(NES_DBG_IW_RX, "ibwr sge count = %u.\n", ib_wr->num_sge); | ||
3530 | wqe = &nesqp->hwqp.rq_vbase[head]; | ||
3531 | |||
3532 | /* nes_debug(NES_DBG_IW_RX, "QP%u:processing rq wqe at %p, head = %u.\n", | ||
3533 | nesqp->hwqp.qp_id, wqe, head); */ | ||
3534 | nes_fill_init_qp_wqe(wqe, nesqp, head); | ||
3535 | u64temp = (u64)(ib_wr->wr_id); | ||
3536 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, | ||
3537 | u64temp); | ||
3538 | total_payload_length = 0; | ||
3539 | for (sge_index=0; sge_index < ib_wr->num_sge; sge_index++) { | ||
3540 | set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_RQ_WQE_FRAG0_LOW_IDX+(sge_index*4), | ||
3541 | ib_wr->sg_list[sge_index].addr); | ||
3542 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_RQ_WQE_LENGTH0_IDX+(sge_index*4), | ||
3543 | ib_wr->sg_list[sge_index].length); | ||
3544 | set_wqe_32bit_value(wqe->wqe_words,NES_IWARP_RQ_WQE_STAG0_IDX+(sge_index*4), | ||
3545 | ib_wr->sg_list[sge_index].lkey); | ||
3546 | |||
3547 | total_payload_length += ib_wr->sg_list[sge_index].length; | ||
3548 | } | ||
3549 | set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_RQ_WQE_TOTAL_PAYLOAD_IDX, | ||
3550 | total_payload_length); | ||
3551 | |||
3552 | ib_wr = ib_wr->next; | ||
3553 | head++; | ||
3554 | wqe_count++; | ||
3555 | if (head >= qsize) | ||
3556 | head = 0; | ||
3557 | } | ||
3558 | |||
3559 | nesqp->hwqp.rq_head = head; | ||
3560 | barrier(); | ||
3561 | while (wqe_count) { | ||
3562 | counter = min(wqe_count, ((u32)255)); | ||
3563 | wqe_count -= counter; | ||
3564 | nes_write32(nesdev->regs+NES_WQE_ALLOC, (counter<<24) | nesqp->hwqp.qp_id); | ||
3565 | } | ||
3566 | |||
3567 | spin_unlock_irqrestore(&nesqp->lock, flags); | ||
3568 | |||
3569 | if (err) | ||
3570 | *bad_wr = ib_wr; | ||
3571 | return err; | ||
3572 | } | ||
3573 | |||
3574 | |||
3575 | /** | ||
3576 | * nes_poll_cq | ||
3577 | */ | ||
3578 | static int nes_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry) | ||
3579 | { | ||
3580 | u64 u64temp; | ||
3581 | u64 wrid; | ||
3582 | /* u64 u64temp; */ | ||
3583 | unsigned long flags = 0; | ||
3584 | struct nes_vnic *nesvnic = to_nesvnic(ibcq->device); | ||
3585 | struct nes_device *nesdev = nesvnic->nesdev; | ||
3586 | struct nes_cq *nescq = to_nescq(ibcq); | ||
3587 | struct nes_qp *nesqp; | ||
3588 | struct nes_hw_cqe cqe; | ||
3589 | u32 head; | ||
3590 | u32 wq_tail; | ||
3591 | u32 cq_size; | ||
3592 | u32 cqe_count = 0; | ||
3593 | u32 wqe_index; | ||
3594 | u32 u32temp; | ||
3595 | /* u32 counter; */ | ||
3596 | |||
3597 | nes_debug(NES_DBG_CQ, "\n"); | ||
3598 | |||
3599 | spin_lock_irqsave(&nescq->lock, flags); | ||
3600 | |||
3601 | head = nescq->hw_cq.cq_head; | ||
3602 | cq_size = nescq->hw_cq.cq_size; | ||
3603 | |||
3604 | while (cqe_count < num_entries) { | ||
3605 | if (le32_to_cpu(nescq->hw_cq.cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX]) & | ||
3606 | NES_CQE_VALID) { | ||
3607 | cqe = nescq->hw_cq.cq_vbase[head]; | ||
3608 | nescq->hw_cq.cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX] = 0; | ||
3609 | u32temp = le32_to_cpu(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX]); | ||
3610 | wqe_index = u32temp & | ||
3611 | (nesdev->nesadapter->max_qp_wr - 1); | ||
3612 | u32temp &= ~(NES_SW_CONTEXT_ALIGN-1); | ||
3613 | /* parse CQE, get completion context from WQE (either rq or sq */ | ||
3614 | u64temp = (((u64)(le32_to_cpu(cqe.cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX])))<<32) | | ||
3615 | ((u64)u32temp); | ||
3616 | nesqp = *((struct nes_qp **)&u64temp); | ||
3617 | memset(entry, 0, sizeof *entry); | ||
3618 | if (cqe.cqe_words[NES_CQE_ERROR_CODE_IDX] == 0) { | ||
3619 | entry->status = IB_WC_SUCCESS; | ||
3620 | } else { | ||
3621 | entry->status = IB_WC_WR_FLUSH_ERR; | ||
3622 | } | ||
3623 | |||
3624 | entry->qp = &nesqp->ibqp; | ||
3625 | entry->src_qp = nesqp->hwqp.qp_id; | ||
3626 | |||
3627 | if (le32_to_cpu(cqe.cqe_words[NES_CQE_OPCODE_IDX]) & NES_CQE_SQ) { | ||
3628 | if (nesqp->skip_lsmm) { | ||
3629 | nesqp->skip_lsmm = 0; | ||
3630 | wq_tail = nesqp->hwqp.sq_tail++; | ||
3631 | } | ||
3632 | |||
3633 | /* Working on a SQ Completion*/ | ||
3634 | wq_tail = wqe_index; | ||
3635 | nesqp->hwqp.sq_tail = (wqe_index+1)&(nesqp->hwqp.sq_size - 1); | ||
3636 | wrid = (((u64)(cpu_to_le32((u32)nesqp->hwqp.sq_vbase[wq_tail]. | ||
3637 | wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_HIGH_IDX]))) << 32) | | ||
3638 | ((u64)(cpu_to_le32((u32)nesqp->hwqp.sq_vbase[wq_tail]. | ||
3639 | wqe_words[NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX]))); | ||
3640 | entry->byte_len = le32_to_cpu(nesqp->hwqp.sq_vbase[wq_tail]. | ||
3641 | wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX]); | ||
3642 | |||
3643 | switch (le32_to_cpu(nesqp->hwqp.sq_vbase[wq_tail]. | ||
3644 | wqe_words[NES_IWARP_SQ_WQE_MISC_IDX]) & 0x3f) { | ||
3645 | case NES_IWARP_SQ_OP_RDMAW: | ||
3646 | nes_debug(NES_DBG_CQ, "Operation = RDMA WRITE.\n"); | ||
3647 | entry->opcode = IB_WC_RDMA_WRITE; | ||
3648 | break; | ||
3649 | case NES_IWARP_SQ_OP_RDMAR: | ||
3650 | nes_debug(NES_DBG_CQ, "Operation = RDMA READ.\n"); | ||
3651 | entry->opcode = IB_WC_RDMA_READ; | ||
3652 | entry->byte_len = le32_to_cpu(nesqp->hwqp.sq_vbase[wq_tail]. | ||
3653 | wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX]); | ||
3654 | break; | ||
3655 | case NES_IWARP_SQ_OP_SENDINV: | ||
3656 | case NES_IWARP_SQ_OP_SENDSEINV: | ||
3657 | case NES_IWARP_SQ_OP_SEND: | ||
3658 | case NES_IWARP_SQ_OP_SENDSE: | ||
3659 | nes_debug(NES_DBG_CQ, "Operation = Send.\n"); | ||
3660 | entry->opcode = IB_WC_SEND; | ||
3661 | break; | ||
3662 | } | ||
3663 | } else { | ||
3664 | /* Working on a RQ Completion*/ | ||
3665 | wq_tail = wqe_index; | ||
3666 | nesqp->hwqp.rq_tail = (wqe_index+1)&(nesqp->hwqp.rq_size - 1); | ||
3667 | entry->byte_len = le32_to_cpu(cqe.cqe_words[NES_CQE_PAYLOAD_LENGTH_IDX]); | ||
3668 | wrid = ((u64)(le32_to_cpu(nesqp->hwqp.rq_vbase[wq_tail].wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_LOW_IDX]))) | | ||
3669 | ((u64)(le32_to_cpu(nesqp->hwqp.rq_vbase[wq_tail].wqe_words[NES_IWARP_RQ_WQE_COMP_SCRATCH_HIGH_IDX]))<<32); | ||
3670 | entry->opcode = IB_WC_RECV; | ||
3671 | } | ||
3672 | entry->wr_id = wrid; | ||
3673 | |||
3674 | if (++head >= cq_size) | ||
3675 | head = 0; | ||
3676 | cqe_count++; | ||
3677 | nescq->polled_completions++; | ||
3678 | if ((nescq->polled_completions > (cq_size / 2)) || | ||
3679 | (nescq->polled_completions == 255)) { | ||
3680 | nes_debug(NES_DBG_CQ, "CQ%u Issuing CQE Allocate since more than half of cqes" | ||
3681 | " are pending %u of %u.\n", | ||
3682 | nescq->hw_cq.cq_number, nescq->polled_completions, cq_size); | ||
3683 | nes_write32(nesdev->regs+NES_CQE_ALLOC, | ||
3684 | nescq->hw_cq.cq_number | (nescq->polled_completions << 16)); | ||
3685 | nescq->polled_completions = 0; | ||
3686 | } | ||
3687 | entry++; | ||
3688 | } else | ||
3689 | break; | ||
3690 | } | ||
3691 | |||
3692 | if (nescq->polled_completions) { | ||
3693 | nes_write32(nesdev->regs+NES_CQE_ALLOC, | ||
3694 | nescq->hw_cq.cq_number | (nescq->polled_completions << 16)); | ||
3695 | nescq->polled_completions = 0; | ||
3696 | } | ||
3697 | |||
3698 | nescq->hw_cq.cq_head = head; | ||
3699 | nes_debug(NES_DBG_CQ, "Reporting %u completions for CQ%u.\n", | ||
3700 | cqe_count, nescq->hw_cq.cq_number); | ||
3701 | |||
3702 | spin_unlock_irqrestore(&nescq->lock, flags); | ||
3703 | |||
3704 | return cqe_count; | ||
3705 | } | ||
3706 | |||
3707 | |||
3708 | /** | ||
3709 | * nes_req_notify_cq | ||
3710 | */ | ||
3711 | static int nes_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags) | ||
3712 | { | ||
3713 | struct nes_vnic *nesvnic = to_nesvnic(ibcq->device); | ||
3714 | struct nes_device *nesdev = nesvnic->nesdev; | ||
3715 | struct nes_cq *nescq = to_nescq(ibcq); | ||
3716 | u32 cq_arm; | ||
3717 | |||
3718 | nes_debug(NES_DBG_CQ, "Requesting notification for CQ%u.\n", | ||
3719 | nescq->hw_cq.cq_number); | ||
3720 | |||
3721 | cq_arm = nescq->hw_cq.cq_number; | ||
3722 | if ((notify_flags & IB_CQ_SOLICITED_MASK) == IB_CQ_NEXT_COMP) | ||
3723 | cq_arm |= NES_CQE_ALLOC_NOTIFY_NEXT; | ||
3724 | else if ((notify_flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED) | ||
3725 | cq_arm |= NES_CQE_ALLOC_NOTIFY_SE; | ||
3726 | else | ||
3727 | return -EINVAL; | ||
3728 | |||
3729 | nes_write32(nesdev->regs+NES_CQE_ALLOC, cq_arm); | ||
3730 | nes_read32(nesdev->regs+NES_CQE_ALLOC); | ||
3731 | |||
3732 | return 0; | ||
3733 | } | ||
3734 | |||
3735 | |||
3736 | /** | ||
3737 | * nes_init_ofa_device | ||
3738 | */ | ||
3739 | struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev) | ||
3740 | { | ||
3741 | struct nes_ib_device *nesibdev; | ||
3742 | struct nes_vnic *nesvnic = netdev_priv(netdev); | ||
3743 | struct nes_device *nesdev = nesvnic->nesdev; | ||
3744 | |||
3745 | nesibdev = (struct nes_ib_device *)ib_alloc_device(sizeof(struct nes_ib_device)); | ||
3746 | if (nesibdev == NULL) { | ||
3747 | return NULL; | ||
3748 | } | ||
3749 | strlcpy(nesibdev->ibdev.name, "nes%d", IB_DEVICE_NAME_MAX); | ||
3750 | nesibdev->ibdev.owner = THIS_MODULE; | ||
3751 | |||
3752 | nesibdev->ibdev.node_type = RDMA_NODE_RNIC; | ||
3753 | memset(&nesibdev->ibdev.node_guid, 0, sizeof(nesibdev->ibdev.node_guid)); | ||
3754 | memcpy(&nesibdev->ibdev.node_guid, netdev->dev_addr, 6); | ||
3755 | |||
3756 | nesibdev->ibdev.uverbs_cmd_mask = | ||
3757 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | ||
3758 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | ||
3759 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | ||
3760 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | ||
3761 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | ||
3762 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | ||
3763 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | ||
3764 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | ||
3765 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | ||
3766 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | ||
3767 | (1ull << IB_USER_VERBS_CMD_CREATE_AH) | | ||
3768 | (1ull << IB_USER_VERBS_CMD_DESTROY_AH) | | ||
3769 | (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | | ||
3770 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | ||
3771 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | ||
3772 | (1ull << IB_USER_VERBS_CMD_POLL_CQ) | | ||
3773 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | ||
3774 | (1ull << IB_USER_VERBS_CMD_ALLOC_MW) | | ||
3775 | (1ull << IB_USER_VERBS_CMD_BIND_MW) | | ||
3776 | (1ull << IB_USER_VERBS_CMD_DEALLOC_MW) | | ||
3777 | (1ull << IB_USER_VERBS_CMD_POST_RECV) | | ||
3778 | (1ull << IB_USER_VERBS_CMD_POST_SEND); | ||
3779 | |||
3780 | nesibdev->ibdev.phys_port_cnt = 1; | ||
3781 | nesibdev->ibdev.num_comp_vectors = 1; | ||
3782 | nesibdev->ibdev.dma_device = &nesdev->pcidev->dev; | ||
3783 | nesibdev->ibdev.class_dev.dev = &nesdev->pcidev->dev; | ||
3784 | nesibdev->ibdev.query_device = nes_query_device; | ||
3785 | nesibdev->ibdev.query_port = nes_query_port; | ||
3786 | nesibdev->ibdev.modify_port = nes_modify_port; | ||
3787 | nesibdev->ibdev.query_pkey = nes_query_pkey; | ||
3788 | nesibdev->ibdev.query_gid = nes_query_gid; | ||
3789 | nesibdev->ibdev.alloc_ucontext = nes_alloc_ucontext; | ||
3790 | nesibdev->ibdev.dealloc_ucontext = nes_dealloc_ucontext; | ||
3791 | nesibdev->ibdev.mmap = nes_mmap; | ||
3792 | nesibdev->ibdev.alloc_pd = nes_alloc_pd; | ||
3793 | nesibdev->ibdev.dealloc_pd = nes_dealloc_pd; | ||
3794 | nesibdev->ibdev.create_ah = nes_create_ah; | ||
3795 | nesibdev->ibdev.destroy_ah = nes_destroy_ah; | ||
3796 | nesibdev->ibdev.create_qp = nes_create_qp; | ||
3797 | nesibdev->ibdev.modify_qp = nes_modify_qp; | ||
3798 | nesibdev->ibdev.query_qp = nes_query_qp; | ||
3799 | nesibdev->ibdev.destroy_qp = nes_destroy_qp; | ||
3800 | nesibdev->ibdev.create_cq = nes_create_cq; | ||
3801 | nesibdev->ibdev.destroy_cq = nes_destroy_cq; | ||
3802 | nesibdev->ibdev.poll_cq = nes_poll_cq; | ||
3803 | nesibdev->ibdev.get_dma_mr = nes_get_dma_mr; | ||
3804 | nesibdev->ibdev.reg_phys_mr = nes_reg_phys_mr; | ||
3805 | nesibdev->ibdev.reg_user_mr = nes_reg_user_mr; | ||
3806 | nesibdev->ibdev.dereg_mr = nes_dereg_mr; | ||
3807 | nesibdev->ibdev.alloc_mw = nes_alloc_mw; | ||
3808 | nesibdev->ibdev.dealloc_mw = nes_dealloc_mw; | ||
3809 | nesibdev->ibdev.bind_mw = nes_bind_mw; | ||
3810 | |||
3811 | nesibdev->ibdev.alloc_fmr = nes_alloc_fmr; | ||
3812 | nesibdev->ibdev.unmap_fmr = nes_unmap_fmr; | ||
3813 | nesibdev->ibdev.dealloc_fmr = nes_dealloc_fmr; | ||
3814 | nesibdev->ibdev.map_phys_fmr = nes_map_phys_fmr; | ||
3815 | |||
3816 | nesibdev->ibdev.attach_mcast = nes_multicast_attach; | ||
3817 | nesibdev->ibdev.detach_mcast = nes_multicast_detach; | ||
3818 | nesibdev->ibdev.process_mad = nes_process_mad; | ||
3819 | |||
3820 | nesibdev->ibdev.req_notify_cq = nes_req_notify_cq; | ||
3821 | nesibdev->ibdev.post_send = nes_post_send; | ||
3822 | nesibdev->ibdev.post_recv = nes_post_recv; | ||
3823 | |||
3824 | nesibdev->ibdev.iwcm = kzalloc(sizeof(*nesibdev->ibdev.iwcm), GFP_KERNEL); | ||
3825 | if (nesibdev->ibdev.iwcm == NULL) { | ||
3826 | ib_dealloc_device(&nesibdev->ibdev); | ||
3827 | return NULL; | ||
3828 | } | ||
3829 | nesibdev->ibdev.iwcm->add_ref = nes_add_ref; | ||
3830 | nesibdev->ibdev.iwcm->rem_ref = nes_rem_ref; | ||
3831 | nesibdev->ibdev.iwcm->get_qp = nes_get_qp; | ||
3832 | nesibdev->ibdev.iwcm->connect = nes_connect; | ||
3833 | nesibdev->ibdev.iwcm->accept = nes_accept; | ||
3834 | nesibdev->ibdev.iwcm->reject = nes_reject; | ||
3835 | nesibdev->ibdev.iwcm->create_listen = nes_create_listen; | ||
3836 | nesibdev->ibdev.iwcm->destroy_listen = nes_destroy_listen; | ||
3837 | |||
3838 | return nesibdev; | ||
3839 | } | ||
3840 | |||
3841 | |||
3842 | /** | ||
3843 | * nes_destroy_ofa_device | ||
3844 | */ | ||
3845 | void nes_destroy_ofa_device(struct nes_ib_device *nesibdev) | ||
3846 | { | ||
3847 | if (nesibdev == NULL) | ||
3848 | return; | ||
3849 | |||
3850 | nes_unregister_ofa_device(nesibdev); | ||
3851 | |||
3852 | kfree(nesibdev->ibdev.iwcm); | ||
3853 | ib_dealloc_device(&nesibdev->ibdev); | ||
3854 | } | ||
3855 | |||
3856 | |||
3857 | /** | ||
3858 | * nes_register_ofa_device | ||
3859 | */ | ||
3860 | int nes_register_ofa_device(struct nes_ib_device *nesibdev) | ||
3861 | { | ||
3862 | struct nes_vnic *nesvnic = nesibdev->nesvnic; | ||
3863 | struct nes_device *nesdev = nesvnic->nesdev; | ||
3864 | struct nes_adapter *nesadapter = nesdev->nesadapter; | ||
3865 | int i, ret; | ||
3866 | |||
3867 | ret = ib_register_device(&nesvnic->nesibdev->ibdev); | ||
3868 | if (ret) { | ||
3869 | return ret; | ||
3870 | } | ||
3871 | |||
3872 | /* Get the resources allocated to this device */ | ||
3873 | nesibdev->max_cq = (nesadapter->max_cq-NES_FIRST_QPN) / nesadapter->port_count; | ||
3874 | nesibdev->max_mr = nesadapter->max_mr / nesadapter->port_count; | ||
3875 | nesibdev->max_qp = (nesadapter->max_qp-NES_FIRST_QPN) / nesadapter->port_count; | ||
3876 | nesibdev->max_pd = nesadapter->max_pd / nesadapter->port_count; | ||
3877 | |||
3878 | for (i = 0; i < ARRAY_SIZE(nes_class_attributes); ++i) { | ||
3879 | ret = class_device_create_file(&nesibdev->ibdev.class_dev, nes_class_attributes[i]); | ||
3880 | if (ret) { | ||
3881 | while (i > 0) { | ||
3882 | i--; | ||
3883 | class_device_remove_file(&nesibdev->ibdev.class_dev, | ||
3884 | nes_class_attributes[i]); | ||
3885 | } | ||
3886 | ib_unregister_device(&nesibdev->ibdev); | ||
3887 | return ret; | ||
3888 | } | ||
3889 | } | ||
3890 | |||
3891 | nesvnic->of_device_registered = 1; | ||
3892 | |||
3893 | return 0; | ||
3894 | } | ||
3895 | |||
3896 | |||
3897 | /** | ||
3898 | * nes_unregister_ofa_device | ||
3899 | */ | ||
3900 | void nes_unregister_ofa_device(struct nes_ib_device *nesibdev) | ||
3901 | { | ||
3902 | struct nes_vnic *nesvnic = nesibdev->nesvnic; | ||
3903 | int i; | ||
3904 | |||
3905 | if (nesibdev == NULL) | ||
3906 | return; | ||
3907 | |||
3908 | for (i = 0; i < ARRAY_SIZE(nes_class_attributes); ++i) { | ||
3909 | class_device_remove_file(&nesibdev->ibdev.class_dev, nes_class_attributes[i]); | ||
3910 | } | ||
3911 | |||
3912 | if (nesvnic->of_device_registered) { | ||
3913 | ib_unregister_device(&nesibdev->ibdev); | ||
3914 | } | ||
3915 | |||
3916 | nesvnic->of_device_registered = 0; | ||
3917 | } | ||