2 * Copyright (c) 2013-2015, Mellanox Technologies, Ltd. All rights reserved.
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33 #include <linux/mlx5/driver.h>
35 #include "mlx5_core.h"
37 u32 mlx5_wq_cyc_get_size(struct mlx5_wq_cyc *wq)
39 return (u32)wq->sz_m1 + 1;
42 u32 mlx5_cqwq_get_size(struct mlx5_cqwq *wq)
44 return wq->fbc.sz_m1 + 1;
47 u32 mlx5_wq_ll_get_size(struct mlx5_wq_ll *wq)
49 return (u32)wq->sz_m1 + 1;
52 static u32 mlx5_wq_cyc_get_byte_size(struct mlx5_wq_cyc *wq)
54 return mlx5_wq_cyc_get_size(wq) << wq->log_stride;
57 static u32 mlx5_wq_qp_get_byte_size(struct mlx5_wq_qp *wq)
59 return mlx5_wq_cyc_get_byte_size(&wq->rq) +
60 mlx5_wq_cyc_get_byte_size(&wq->sq);
63 static u32 mlx5_cqwq_get_byte_size(struct mlx5_cqwq *wq)
65 return mlx5_cqwq_get_size(wq) << wq->fbc.log_stride;
68 static u32 mlx5_wq_ll_get_byte_size(struct mlx5_wq_ll *wq)
70 return mlx5_wq_ll_get_size(wq) << wq->log_stride;
73 int mlx5_wq_cyc_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
74 void *wqc, struct mlx5_wq_cyc *wq,
75 struct mlx5_wq_ctrl *wq_ctrl)
79 wq->log_stride = MLX5_GET(wq, wqc, log_wq_stride);
80 wq->sz_m1 = (1 << MLX5_GET(wq, wqc, log_wq_sz)) - 1;
82 err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node);
84 mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err);
88 err = mlx5_buf_alloc_node(mdev, mlx5_wq_cyc_get_byte_size(wq),
89 &wq_ctrl->buf, param->buf_numa_node);
91 mlx5_core_warn(mdev, "mlx5_buf_alloc_node() failed, %d\n", err);
95 wq->buf = wq_ctrl->buf.frags->buf;
96 wq->db = wq_ctrl->db.db;
103 mlx5_db_free(mdev, &wq_ctrl->db);
108 int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
109 void *qpc, struct mlx5_wq_qp *wq,
110 struct mlx5_wq_ctrl *wq_ctrl)
114 wq->rq.log_stride = MLX5_GET(qpc, qpc, log_rq_stride) + 4;
115 wq->rq.sz_m1 = (1 << MLX5_GET(qpc, qpc, log_rq_size)) - 1;
117 wq->sq.log_stride = ilog2(MLX5_SEND_WQE_BB);
118 wq->sq.sz_m1 = (1 << MLX5_GET(qpc, qpc, log_sq_size)) - 1;
120 err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node);
122 mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err);
126 err = mlx5_buf_alloc_node(mdev, mlx5_wq_qp_get_byte_size(wq),
127 &wq_ctrl->buf, param->buf_numa_node);
129 mlx5_core_warn(mdev, "mlx5_buf_alloc_node() failed, %d\n", err);
133 wq->rq.buf = wq_ctrl->buf.frags->buf;
134 wq->sq.buf = wq->rq.buf + mlx5_wq_cyc_get_byte_size(&wq->rq);
135 wq->rq.db = &wq_ctrl->db.db[MLX5_RCV_DBR];
136 wq->sq.db = &wq_ctrl->db.db[MLX5_SND_DBR];
138 wq_ctrl->mdev = mdev;
143 mlx5_db_free(mdev, &wq_ctrl->db);
148 int mlx5_cqwq_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
149 void *cqc, struct mlx5_cqwq *wq,
150 struct mlx5_frag_wq_ctrl *wq_ctrl)
154 mlx5_core_init_cq_frag_buf(&wq->fbc, cqc);
156 err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node);
158 mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err);
162 err = mlx5_frag_buf_alloc_node(mdev, mlx5_cqwq_get_byte_size(wq),
164 param->buf_numa_node);
166 mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n",
171 wq->fbc.frag_buf = wq_ctrl->frag_buf;
172 wq->db = wq_ctrl->db.db;
174 wq_ctrl->mdev = mdev;
179 mlx5_db_free(mdev, &wq_ctrl->db);
184 int mlx5_wq_ll_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
185 void *wqc, struct mlx5_wq_ll *wq,
186 struct mlx5_wq_ctrl *wq_ctrl)
188 struct mlx5_wqe_srq_next_seg *next_seg;
192 wq->log_stride = MLX5_GET(wq, wqc, log_wq_stride);
193 wq->sz_m1 = (1 << MLX5_GET(wq, wqc, log_wq_sz)) - 1;
195 err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node);
197 mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err);
201 err = mlx5_buf_alloc_node(mdev, mlx5_wq_ll_get_byte_size(wq),
202 &wq_ctrl->buf, param->buf_numa_node);
204 mlx5_core_warn(mdev, "mlx5_buf_alloc_node() failed, %d\n", err);
208 wq->buf = wq_ctrl->buf.frags->buf;
209 wq->db = wq_ctrl->db.db;
211 for (i = 0; i < wq->sz_m1; i++) {
212 next_seg = mlx5_wq_ll_get_wqe(wq, i);
213 next_seg->next_wqe_index = cpu_to_be16(i + 1);
215 next_seg = mlx5_wq_ll_get_wqe(wq, i);
216 wq->tail_next = &next_seg->next_wqe_index;
218 wq_ctrl->mdev = mdev;
223 mlx5_db_free(mdev, &wq_ctrl->db);
228 void mlx5_wq_destroy(struct mlx5_wq_ctrl *wq_ctrl)
230 mlx5_buf_free(wq_ctrl->mdev, &wq_ctrl->buf);
231 mlx5_db_free(wq_ctrl->mdev, &wq_ctrl->db);
234 void mlx5_cqwq_destroy(struct mlx5_frag_wq_ctrl *wq_ctrl)
236 mlx5_frag_buf_free(wq_ctrl->mdev, &wq_ctrl->frag_buf);
237 mlx5_db_free(wq_ctrl->mdev, &wq_ctrl->db);