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 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)
41 u8 log_wq_stride = MLX5_GET(wq, wqc, log_wq_stride);
42 u8 log_wq_sz = MLX5_GET(wq, wqc, log_wq_sz);
43 struct mlx5_frag_buf_ctrl *fbc = &wq->fbc;
46 err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node);
48 mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err);
52 wq->db = wq_ctrl->db.db;
54 err = mlx5_frag_buf_alloc_node(mdev, wq_get_byte_sz(log_wq_sz, log_wq_stride),
55 &wq_ctrl->buf, param->buf_numa_node);
57 mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", err);
61 mlx5_init_fbc(wq_ctrl->buf.frags, log_wq_stride, log_wq_sz, fbc);
62 wq->sz = mlx5_wq_cyc_get_size(wq);
69 mlx5_db_free(mdev, &wq_ctrl->db);
74 void mlx5_wq_cyc_wqe_dump(struct mlx5_wq_cyc *wq, u16 ix, u8 nstrides)
82 nstrides = max_t(u8, nstrides, 1);
84 len = nstrides << wq->fbc.log_stride;
85 wqe = mlx5_wq_cyc_get_wqe(wq, ix);
87 pr_info("WQE DUMP: WQ size %d WQ cur size %d, WQE index 0x%x, len: %zu\n",
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);
92 void mlx5_wq_cyc_reset(struct mlx5_wq_cyc *wq)
96 mlx5_wq_cyc_update_db_record(wq);
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)
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);
113 err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node);
115 mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err);
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),
122 &wq_ctrl->buf, param->buf_numa_node);
124 mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", err);
128 mlx5_init_fbc(wq_ctrl->buf.frags, log_rq_stride, log_rq_sz, &wq->rq.fbc);
130 rq_byte_size = wq_get_byte_sz(log_rq_sz, log_rq_stride);
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;
136 mlx5_init_fbc_offset(wq_ctrl->buf.frags,
137 log_sq_stride, log_sq_sz, sq_strides_offset,
140 u16 rq_npages = rq_byte_size >> PAGE_SHIFT;
142 mlx5_init_fbc(wq_ctrl->buf.frags + rq_npages,
143 log_sq_stride, log_sq_sz, &wq->sq.fbc);
146 wq->rq.db = &wq_ctrl->db.db[MLX5_RCV_DBR];
147 wq->sq.db = &wq_ctrl->db.db[MLX5_SND_DBR];
149 wq_ctrl->mdev = mdev;
154 mlx5_db_free(mdev, &wq_ctrl->db);
159 int mlx5_cqwq_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
160 void *cqc, struct mlx5_cqwq *wq,
161 struct mlx5_wq_ctrl *wq_ctrl)
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;
165 u8 log_wq_sz = MLX5_GET(cqc, cqc, log_cq_size);
168 err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node);
170 mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err);
174 wq->db = wq_ctrl->db.db;
176 err = mlx5_frag_buf_alloc_node(mdev, wq_get_byte_sz(log_wq_sz, log_wq_stride),
178 param->buf_numa_node);
180 mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n",
185 mlx5_init_fbc(wq_ctrl->buf.frags, log_wq_stride, log_wq_sz, &wq->fbc);
187 wq_ctrl->mdev = mdev;
192 mlx5_db_free(mdev, &wq_ctrl->db);
197 static void mlx5_wq_ll_init_list(struct mlx5_wq_ll *wq)
199 struct mlx5_wqe_srq_next_seg *next_seg;
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);
206 next_seg = mlx5_wq_ll_get_wqe(wq, i);
207 wq->tail_next = &next_seg->next_wqe_index;
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)
214 u8 log_wq_stride = MLX5_GET(wq, wqc, log_wq_stride);
215 u8 log_wq_sz = MLX5_GET(wq, wqc, log_wq_sz);
216 struct mlx5_frag_buf_ctrl *fbc = &wq->fbc;
219 err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node);
221 mlx5_core_warn(mdev, "mlx5_db_alloc_node() failed, %d\n", err);
225 wq->db = wq_ctrl->db.db;
227 err = mlx5_frag_buf_alloc_node(mdev, wq_get_byte_sz(log_wq_sz, log_wq_stride),
228 &wq_ctrl->buf, param->buf_numa_node);
230 mlx5_core_warn(mdev, "mlx5_frag_buf_alloc_node() failed, %d\n", err);
234 mlx5_init_fbc(wq_ctrl->buf.frags, log_wq_stride, log_wq_sz, fbc);
236 mlx5_wq_ll_init_list(wq);
237 wq_ctrl->mdev = mdev;
242 mlx5_db_free(mdev, &wq_ctrl->db);
247 void mlx5_wq_ll_reset(struct mlx5_wq_ll *wq)
252 mlx5_wq_ll_init_list(wq);
253 mlx5_wq_ll_update_db_record(wq);
256 void mlx5_wq_destroy(struct mlx5_wq_ctrl *wq_ctrl)
258 mlx5_frag_buf_free(wq_ctrl->mdev, &wq_ctrl->buf);
259 mlx5_db_free(wq_ctrl->mdev, &wq_ctrl->db);