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e586b3b0 AV |
1 | /* |
2 | * Copyright (c) 2013-2015, Mellanox Technologies, Ltd. 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 | #include <linux/mlx5/driver.h> | |
34 | #include "wq.h" | |
35 | #include "mlx5_core.h" | |
36 | ||
37 | u32 mlx5_wq_cyc_get_size(struct mlx5_wq_cyc *wq) | |
38 | { | |
3a2f7033 TT |
39 | return (u32)wq->fbc.sz_m1 + 1; |
40 | } | |
41 | ||
42 | u32 mlx5_wq_cyc_get_frag_size(struct mlx5_wq_cyc *wq) | |
43 | { | |
44 | return (u32)wq->fbc.frag_sz_m1 + 1; | |
e586b3b0 AV |
45 | } |
46 | ||
47 | u32 mlx5_cqwq_get_size(struct mlx5_cqwq *wq) | |
48 | { | |
388ca8be | 49 | return wq->fbc.sz_m1 + 1; |
e586b3b0 AV |
50 | } |
51 | ||
52 | u32 mlx5_wq_ll_get_size(struct mlx5_wq_ll *wq) | |
53 | { | |
3a2f7033 | 54 | return (u32)wq->fbc.sz_m1 + 1; |
e586b3b0 AV |
55 | } |
56 | ||
57 | static u32 mlx5_wq_cyc_get_byte_size(struct mlx5_wq_cyc *wq) | |
58 | { | |
3a2f7033 | 59 | return mlx5_wq_cyc_get_size(wq) << wq->fbc.log_stride; |
e586b3b0 AV |
60 | } |
61 | ||
3f2b7edd IT |
62 | static u32 mlx5_wq_qp_get_byte_size(struct mlx5_wq_qp *wq) |
63 | { | |
64 | return mlx5_wq_cyc_get_byte_size(&wq->rq) + | |
65 | mlx5_wq_cyc_get_byte_size(&wq->sq); | |
66 | } | |
67 | ||
e586b3b0 AV |
68 | static u32 mlx5_cqwq_get_byte_size(struct mlx5_cqwq *wq) |
69 | { | |
388ca8be | 70 | return mlx5_cqwq_get_size(wq) << wq->fbc.log_stride; |
e586b3b0 AV |
71 | } |
72 | ||
73 | static u32 mlx5_wq_ll_get_byte_size(struct mlx5_wq_ll *wq) | |
74 | { | |
3a2f7033 | 75 | return mlx5_wq_ll_get_size(wq) << wq->fbc.log_stride; |
e586b3b0 AV |
76 | } |
77 | ||
78 | int mlx5_wq_cyc_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, | |
79 | void *wqc, struct mlx5_wq_cyc *wq, | |
80 | struct mlx5_wq_ctrl *wq_ctrl) | |
81 | { | |
3a2f7033 | 82 | struct mlx5_frag_buf_ctrl *fbc = &wq->fbc; |
e586b3b0 AV |
83 | int err; |
84 | ||
3a2f7033 TT |
85 | mlx5_fill_fbc(MLX5_GET(wq, wqc, log_wq_stride), |
86 | MLX5_GET(wq, wqc, log_wq_sz), | |
87 | fbc); | |
99cbfa93 | 88 | wq->sz = wq->fbc.sz_m1 + 1; |
e586b3b0 | 89 | |
311c7c71 | 90 | err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node); |
e586b3b0 | 91 | if (err) { |
f299a02d | 92 | mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err); |
e586b3b0 AV |
93 | return err; |
94 | } | |
95 | ||
3a2f7033 TT |
96 | err = mlx5_frag_buf_alloc_node(mdev, mlx5_wq_cyc_get_byte_size(wq), |
97 | &wq_ctrl->buf, param->buf_numa_node); | |
e586b3b0 | 98 | if (err) { |
3a2f7033 | 99 | mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", err); |
e586b3b0 AV |
100 | goto err_db_free; |
101 | } | |
102 | ||
3a2f7033 | 103 | fbc->frag_buf = wq_ctrl->buf; |
e586b3b0 AV |
104 | wq->db = wq_ctrl->db.db; |
105 | ||
106 | wq_ctrl->mdev = mdev; | |
107 | ||
108 | return 0; | |
109 | ||
110 | err_db_free: | |
111 | mlx5_db_free(mdev, &wq_ctrl->db); | |
112 | ||
113 | return err; | |
114 | } | |
115 | ||
d7037ad7 TT |
116 | static void mlx5_qp_set_frag_buf(struct mlx5_frag_buf *buf, |
117 | struct mlx5_wq_qp *qp) | |
3a2f7033 | 118 | { |
d7037ad7 | 119 | struct mlx5_frag_buf_ctrl *sq_fbc; |
3a2f7033 TT |
120 | struct mlx5_frag_buf *rqb, *sqb; |
121 | ||
d7037ad7 | 122 | rqb = &qp->rq.fbc.frag_buf; |
3a2f7033 TT |
123 | *rqb = *buf; |
124 | rqb->size = mlx5_wq_cyc_get_byte_size(&qp->rq); | |
d7037ad7 | 125 | rqb->npages = DIV_ROUND_UP(rqb->size, PAGE_SIZE); |
3a2f7033 | 126 | |
d7037ad7 TT |
127 | sq_fbc = &qp->sq.fbc; |
128 | sqb = &sq_fbc->frag_buf; | |
129 | *sqb = *buf; | |
130 | sqb->size = mlx5_wq_cyc_get_byte_size(&qp->sq); | |
131 | sqb->npages = DIV_ROUND_UP(sqb->size, PAGE_SIZE); | |
3a2f7033 | 132 | sqb->frags += rqb->npages; /* first part is for the rq */ |
d7037ad7 TT |
133 | if (sq_fbc->strides_offset) |
134 | sqb->frags--; | |
3a2f7033 TT |
135 | } |
136 | ||
3f2b7edd IT |
137 | int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, |
138 | void *qpc, struct mlx5_wq_qp *wq, | |
139 | struct mlx5_wq_ctrl *wq_ctrl) | |
140 | { | |
d7037ad7 | 141 | u32 sq_strides_offset; |
3f2b7edd IT |
142 | int err; |
143 | ||
3a2f7033 TT |
144 | mlx5_fill_fbc(MLX5_GET(qpc, qpc, log_rq_stride) + 4, |
145 | MLX5_GET(qpc, qpc, log_rq_size), | |
146 | &wq->rq.fbc); | |
d7037ad7 TT |
147 | |
148 | sq_strides_offset = | |
149 | ((wq->rq.fbc.frag_sz_m1 + 1) % PAGE_SIZE) / MLX5_SEND_WQE_BB; | |
150 | ||
151 | mlx5_fill_fbc_offset(ilog2(MLX5_SEND_WQE_BB), | |
152 | MLX5_GET(qpc, qpc, log_sq_size), | |
153 | sq_strides_offset, | |
154 | &wq->sq.fbc); | |
3f2b7edd IT |
155 | |
156 | err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node); | |
157 | if (err) { | |
158 | mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err); | |
159 | return err; | |
160 | } | |
161 | ||
3a2f7033 TT |
162 | err = mlx5_frag_buf_alloc_node(mdev, mlx5_wq_qp_get_byte_size(wq), |
163 | &wq_ctrl->buf, param->buf_numa_node); | |
3f2b7edd | 164 | if (err) { |
3a2f7033 | 165 | mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", err); |
3f2b7edd IT |
166 | goto err_db_free; |
167 | } | |
168 | ||
d7037ad7 | 169 | mlx5_qp_set_frag_buf(&wq_ctrl->buf, wq); |
3a2f7033 | 170 | |
3f2b7edd IT |
171 | wq->rq.db = &wq_ctrl->db.db[MLX5_RCV_DBR]; |
172 | wq->sq.db = &wq_ctrl->db.db[MLX5_SND_DBR]; | |
173 | ||
174 | wq_ctrl->mdev = mdev; | |
175 | ||
176 | return 0; | |
177 | ||
178 | err_db_free: | |
179 | mlx5_db_free(mdev, &wq_ctrl->db); | |
180 | ||
181 | return err; | |
182 | } | |
183 | ||
e586b3b0 AV |
184 | int mlx5_cqwq_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, |
185 | void *cqc, struct mlx5_cqwq *wq, | |
3a2f7033 | 186 | struct mlx5_wq_ctrl *wq_ctrl) |
e586b3b0 AV |
187 | { |
188 | int err; | |
189 | ||
388ca8be | 190 | mlx5_core_init_cq_frag_buf(&wq->fbc, cqc); |
e586b3b0 | 191 | |
311c7c71 | 192 | err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node); |
e586b3b0 | 193 | if (err) { |
f299a02d | 194 | mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err); |
e586b3b0 AV |
195 | return err; |
196 | } | |
197 | ||
1c1b5228 | 198 | err = mlx5_frag_buf_alloc_node(mdev, mlx5_cqwq_get_byte_size(wq), |
3a2f7033 | 199 | &wq_ctrl->buf, |
1c1b5228 | 200 | param->buf_numa_node); |
e586b3b0 | 201 | if (err) { |
1c1b5228 TT |
202 | mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", |
203 | err); | |
e586b3b0 AV |
204 | goto err_db_free; |
205 | } | |
206 | ||
3a2f7033 | 207 | wq->fbc.frag_buf = wq_ctrl->buf; |
e586b3b0 AV |
208 | wq->db = wq_ctrl->db.db; |
209 | ||
210 | wq_ctrl->mdev = mdev; | |
211 | ||
212 | return 0; | |
213 | ||
214 | err_db_free: | |
215 | mlx5_db_free(mdev, &wq_ctrl->db); | |
216 | ||
217 | return err; | |
218 | } | |
219 | ||
220 | int mlx5_wq_ll_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, | |
221 | void *wqc, struct mlx5_wq_ll *wq, | |
222 | struct mlx5_wq_ctrl *wq_ctrl) | |
223 | { | |
3a2f7033 | 224 | struct mlx5_frag_buf_ctrl *fbc = &wq->fbc; |
e586b3b0 AV |
225 | struct mlx5_wqe_srq_next_seg *next_seg; |
226 | int err; | |
227 | int i; | |
228 | ||
3a2f7033 TT |
229 | mlx5_fill_fbc(MLX5_GET(wq, wqc, log_wq_stride), |
230 | MLX5_GET(wq, wqc, log_wq_sz), | |
231 | fbc); | |
e586b3b0 | 232 | |
311c7c71 | 233 | err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node); |
e586b3b0 | 234 | if (err) { |
f299a02d | 235 | mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err); |
e586b3b0 AV |
236 | return err; |
237 | } | |
238 | ||
3a2f7033 TT |
239 | err = mlx5_frag_buf_alloc_node(mdev, mlx5_wq_ll_get_byte_size(wq), |
240 | &wq_ctrl->buf, param->buf_numa_node); | |
e586b3b0 | 241 | if (err) { |
3a2f7033 | 242 | mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", err); |
e586b3b0 AV |
243 | goto err_db_free; |
244 | } | |
245 | ||
3a2f7033 | 246 | wq->fbc.frag_buf = wq_ctrl->buf; |
e586b3b0 AV |
247 | wq->db = wq_ctrl->db.db; |
248 | ||
3a2f7033 | 249 | for (i = 0; i < fbc->sz_m1; i++) { |
e586b3b0 AV |
250 | next_seg = mlx5_wq_ll_get_wqe(wq, i); |
251 | next_seg->next_wqe_index = cpu_to_be16(i + 1); | |
252 | } | |
253 | next_seg = mlx5_wq_ll_get_wqe(wq, i); | |
254 | wq->tail_next = &next_seg->next_wqe_index; | |
255 | ||
256 | wq_ctrl->mdev = mdev; | |
257 | ||
258 | return 0; | |
259 | ||
260 | err_db_free: | |
261 | mlx5_db_free(mdev, &wq_ctrl->db); | |
262 | ||
263 | return err; | |
264 | } | |
265 | ||
266 | void mlx5_wq_destroy(struct mlx5_wq_ctrl *wq_ctrl) | |
267 | { | |
3a2f7033 | 268 | mlx5_frag_buf_free(wq_ctrl->mdev, &wq_ctrl->buf); |
e586b3b0 AV |
269 | mlx5_db_free(wq_ctrl->mdev, &wq_ctrl->db); |
270 | } | |
1c1b5228 | 271 |