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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 | ||
e586b3b0 AV |
37 | int mlx5_wq_cyc_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, |
38 | void *wqc, struct mlx5_wq_cyc *wq, | |
39 | struct mlx5_wq_ctrl *wq_ctrl) | |
40 | { | |
4972e6fa TT |
41 | u8 log_wq_stride = MLX5_GET(wq, wqc, log_wq_stride); |
42 | u8 log_wq_sz = MLX5_GET(wq, wqc, log_wq_sz); | |
3a2f7033 | 43 | struct mlx5_frag_buf_ctrl *fbc = &wq->fbc; |
e586b3b0 AV |
44 | int err; |
45 | ||
311c7c71 | 46 | err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node); |
e586b3b0 | 47 | if (err) { |
f299a02d | 48 | mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err); |
e586b3b0 AV |
49 | return err; |
50 | } | |
51 | ||
4972e6fa TT |
52 | wq->db = wq_ctrl->db.db; |
53 | ||
54 | err = mlx5_frag_buf_alloc_node(mdev, wq_get_byte_sz(log_wq_sz, log_wq_stride), | |
3a2f7033 | 55 | &wq_ctrl->buf, param->buf_numa_node); |
e586b3b0 | 56 | if (err) { |
3a2f7033 | 57 | mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", err); |
e586b3b0 AV |
58 | goto err_db_free; |
59 | } | |
60 | ||
4972e6fa TT |
61 | mlx5_init_fbc(wq_ctrl->buf.frags, log_wq_stride, log_wq_sz, fbc); |
62 | wq->sz = mlx5_wq_cyc_get_size(wq); | |
e586b3b0 AV |
63 | |
64 | wq_ctrl->mdev = mdev; | |
65 | ||
66 | return 0; | |
67 | ||
68 | err_db_free: | |
69 | mlx5_db_free(mdev, &wq_ctrl->db); | |
70 | ||
71 | return err; | |
72 | } | |
73 | ||
130c7b46 SM |
74 | void mlx5_wq_cyc_wqe_dump(struct mlx5_wq_cyc *wq, u16 ix, u8 nstrides) |
75 | { | |
76 | size_t len; | |
77 | void *wqe; | |
78 | ||
79 | if (!net_ratelimit()) | |
80 | return; | |
81 | ||
82 | nstrides = max_t(u8, nstrides, 1); | |
83 | ||
84 | len = nstrides << wq->fbc.log_stride; | |
85 | wqe = mlx5_wq_cyc_get_wqe(wq, ix); | |
86 | ||
ca9c74ae | 87 | pr_info("WQE DUMP: WQ size %d WQ cur size %d, WQE index 0x%x, len: %zu\n", |
130c7b46 SM |
88 | mlx5_wq_cyc_get_size(wq), wq->cur_sz, ix, len); |
89 | print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 16, 1, wqe, len, false); | |
90 | } | |
91 | ||
5ee090ed AL |
92 | void mlx5_wq_cyc_reset(struct mlx5_wq_cyc *wq) |
93 | { | |
94 | wq->wqe_ctr = 0; | |
95 | wq->cur_sz = 0; | |
96 | mlx5_wq_cyc_update_db_record(wq); | |
97 | } | |
98 | ||
3f2b7edd IT |
99 | int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, |
100 | void *qpc, struct mlx5_wq_qp *wq, | |
101 | struct mlx5_wq_ctrl *wq_ctrl) | |
102 | { | |
4972e6fa TT |
103 | u8 log_rq_stride = MLX5_GET(qpc, qpc, log_rq_stride) + 4; |
104 | u8 log_rq_sz = MLX5_GET(qpc, qpc, log_rq_size); | |
105 | u8 log_sq_stride = ilog2(MLX5_SEND_WQE_BB); | |
106 | u8 log_sq_sz = MLX5_GET(qpc, qpc, log_sq_size); | |
3f2b7edd | 107 | |
4972e6fa TT |
108 | u32 rq_byte_size; |
109 | int err; | |
d7037ad7 | 110 | |
d7037ad7 | 111 | |
3f2b7edd IT |
112 | |
113 | err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node); | |
114 | if (err) { | |
115 | mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err); | |
116 | return err; | |
117 | } | |
118 | ||
4972e6fa TT |
119 | err = mlx5_frag_buf_alloc_node(mdev, |
120 | wq_get_byte_sz(log_rq_sz, log_rq_stride) + | |
121 | wq_get_byte_sz(log_sq_sz, log_sq_stride), | |
3a2f7033 | 122 | &wq_ctrl->buf, param->buf_numa_node); |
3f2b7edd | 123 | if (err) { |
3a2f7033 | 124 | mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", err); |
3f2b7edd IT |
125 | goto err_db_free; |
126 | } | |
127 | ||
4972e6fa TT |
128 | mlx5_init_fbc(wq_ctrl->buf.frags, log_rq_stride, log_rq_sz, &wq->rq.fbc); |
129 | ||
130 | rq_byte_size = wq_get_byte_sz(log_rq_sz, log_rq_stride); | |
131 | ||
132 | if (rq_byte_size < PAGE_SIZE) { | |
133 | /* SQ starts within the same page of the RQ */ | |
134 | u16 sq_strides_offset = rq_byte_size / MLX5_SEND_WQE_BB; | |
135 | ||
136 | mlx5_init_fbc_offset(wq_ctrl->buf.frags, | |
137 | log_sq_stride, log_sq_sz, sq_strides_offset, | |
138 | &wq->sq.fbc); | |
139 | } else { | |
140 | u16 rq_npages = rq_byte_size >> PAGE_SHIFT; | |
141 | ||
142 | mlx5_init_fbc(wq_ctrl->buf.frags + rq_npages, | |
143 | log_sq_stride, log_sq_sz, &wq->sq.fbc); | |
144 | } | |
3a2f7033 | 145 | |
3f2b7edd IT |
146 | wq->rq.db = &wq_ctrl->db.db[MLX5_RCV_DBR]; |
147 | wq->sq.db = &wq_ctrl->db.db[MLX5_SND_DBR]; | |
148 | ||
149 | wq_ctrl->mdev = mdev; | |
150 | ||
151 | return 0; | |
152 | ||
153 | err_db_free: | |
154 | mlx5_db_free(mdev, &wq_ctrl->db); | |
155 | ||
156 | return err; | |
157 | } | |
158 | ||
e586b3b0 AV |
159 | int mlx5_cqwq_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, |
160 | void *cqc, struct mlx5_cqwq *wq, | |
3a2f7033 | 161 | struct mlx5_wq_ctrl *wq_ctrl) |
e586b3b0 | 162 | { |
939de57d DJ |
163 | /* CQE_STRIDE_128 and CQE_STRIDE_128_PAD both mean 128B stride */ |
164 | u8 log_wq_stride = MLX5_GET(cqc, cqc, cqe_sz) == CQE_STRIDE_64 ? 6 : 7; | |
4972e6fa | 165 | u8 log_wq_sz = MLX5_GET(cqc, cqc, log_cq_size); |
e586b3b0 AV |
166 | int err; |
167 | ||
311c7c71 | 168 | err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node); |
e586b3b0 | 169 | if (err) { |
f299a02d | 170 | mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err); |
e586b3b0 AV |
171 | return err; |
172 | } | |
173 | ||
4972e6fa TT |
174 | wq->db = wq_ctrl->db.db; |
175 | ||
176 | err = mlx5_frag_buf_alloc_node(mdev, wq_get_byte_sz(log_wq_sz, log_wq_stride), | |
3a2f7033 | 177 | &wq_ctrl->buf, |
1c1b5228 | 178 | param->buf_numa_node); |
e586b3b0 | 179 | if (err) { |
1c1b5228 TT |
180 | mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", |
181 | err); | |
e586b3b0 AV |
182 | goto err_db_free; |
183 | } | |
184 | ||
4972e6fa | 185 | mlx5_init_fbc(wq_ctrl->buf.frags, log_wq_stride, log_wq_sz, &wq->fbc); |
e586b3b0 AV |
186 | |
187 | wq_ctrl->mdev = mdev; | |
188 | ||
189 | return 0; | |
190 | ||
191 | err_db_free: | |
192 | mlx5_db_free(mdev, &wq_ctrl->db); | |
193 | ||
194 | return err; | |
195 | } | |
196 | ||
5ee090ed AL |
197 | static void mlx5_wq_ll_init_list(struct mlx5_wq_ll *wq) |
198 | { | |
199 | struct mlx5_wqe_srq_next_seg *next_seg; | |
200 | int i; | |
201 | ||
202 | for (i = 0; i < wq->fbc.sz_m1; i++) { | |
203 | next_seg = mlx5_wq_ll_get_wqe(wq, i); | |
204 | next_seg->next_wqe_index = cpu_to_be16(i + 1); | |
205 | } | |
206 | next_seg = mlx5_wq_ll_get_wqe(wq, i); | |
207 | wq->tail_next = &next_seg->next_wqe_index; | |
208 | } | |
209 | ||
e586b3b0 AV |
210 | int mlx5_wq_ll_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param, |
211 | void *wqc, struct mlx5_wq_ll *wq, | |
212 | struct mlx5_wq_ctrl *wq_ctrl) | |
213 | { | |
4972e6fa TT |
214 | u8 log_wq_stride = MLX5_GET(wq, wqc, log_wq_stride); |
215 | u8 log_wq_sz = MLX5_GET(wq, wqc, log_wq_sz); | |
3a2f7033 | 216 | struct mlx5_frag_buf_ctrl *fbc = &wq->fbc; |
e586b3b0 | 217 | int err; |
e586b3b0 | 218 | |
311c7c71 | 219 | err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node); |
e586b3b0 | 220 | if (err) { |
f299a02d | 221 | mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err); |
e586b3b0 AV |
222 | return err; |
223 | } | |
224 | ||
4972e6fa TT |
225 | wq->db = wq_ctrl->db.db; |
226 | ||
227 | err = mlx5_frag_buf_alloc_node(mdev, wq_get_byte_sz(log_wq_sz, log_wq_stride), | |
3a2f7033 | 228 | &wq_ctrl->buf, param->buf_numa_node); |
e586b3b0 | 229 | if (err) { |
3a2f7033 | 230 | mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", err); |
e586b3b0 AV |
231 | goto err_db_free; |
232 | } | |
233 | ||
4972e6fa | 234 | mlx5_init_fbc(wq_ctrl->buf.frags, log_wq_stride, log_wq_sz, fbc); |
e586b3b0 | 235 | |
5ee090ed | 236 | mlx5_wq_ll_init_list(wq); |
e586b3b0 AV |
237 | wq_ctrl->mdev = mdev; |
238 | ||
239 | return 0; | |
240 | ||
241 | err_db_free: | |
242 | mlx5_db_free(mdev, &wq_ctrl->db); | |
243 | ||
244 | return err; | |
245 | } | |
246 | ||
5ee090ed AL |
247 | void mlx5_wq_ll_reset(struct mlx5_wq_ll *wq) |
248 | { | |
249 | wq->head = 0; | |
250 | wq->wqe_ctr = 0; | |
251 | wq->cur_sz = 0; | |
252 | mlx5_wq_ll_init_list(wq); | |
253 | mlx5_wq_ll_update_db_record(wq); | |
254 | } | |
255 | ||
e586b3b0 AV |
256 | void mlx5_wq_destroy(struct mlx5_wq_ctrl *wq_ctrl) |
257 | { | |
3a2f7033 | 258 | mlx5_frag_buf_free(wq_ctrl->mdev, &wq_ctrl->buf); |
e586b3b0 AV |
259 | mlx5_db_free(wq_ctrl->mdev, &wq_ctrl->db); |
260 | } | |
1c1b5228 | 261 |