1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2020 Mellanox Technologies, Ltd 3 */ 4 5 #ifndef RTE_PMD_MLX5_COMMON_DEVX_H_ 6 #define RTE_PMD_MLX5_COMMON_DEVX_H_ 7 8 #include "mlx5_devx_cmds.h" 9 10 /* The standard page size */ 11 #define MLX5_LOG_PAGE_SIZE 12 12 13 /* DevX Completion Queue structure. */ 14 struct mlx5_devx_cq { 15 struct mlx5_devx_obj *cq; /* The CQ DevX object. */ 16 void *umem_obj; /* The CQ umem object. */ 17 union { 18 volatile void *umem_buf; 19 volatile struct mlx5_cqe *cqes; /* The CQ ring buffer. */ 20 }; 21 volatile uint32_t *db_rec; /* The CQ doorbell record. */ 22 }; 23 24 /* DevX Send Queue structure. */ 25 struct mlx5_devx_sq { 26 struct mlx5_devx_obj *sq; /* The SQ DevX object. */ 27 void *umem_obj; /* The SQ umem object. */ 28 union { 29 volatile void *umem_buf; 30 volatile struct mlx5_wqe *wqes; /* The SQ ring buffer. */ 31 volatile struct mlx5_aso_wqe *aso_wqes; 32 }; 33 volatile uint32_t *db_rec; /* The SQ doorbell record. */ 34 }; 35 36 /* DevX Queue Pair structure. */ 37 struct mlx5_devx_qp { 38 struct mlx5_devx_obj *qp; /* The QP DevX object. */ 39 void *umem_obj; /* The QP umem object. */ 40 union { 41 void *umem_buf; 42 struct mlx5_wqe *wqes; /* The QP ring buffer. */ 43 struct mlx5_aso_wqe *aso_wqes; 44 }; 45 volatile uint32_t *db_rec; /* The QP doorbell record. */ 46 }; 47 48 /* DevX Receive Queue structure. */ 49 struct mlx5_devx_rq { 50 struct mlx5_devx_obj *rq; /* The RQ DevX object. */ 51 void *umem_obj; /* The RQ umem object. */ 52 volatile void *umem_buf; 53 volatile uint32_t *db_rec; /* The RQ doorbell record. */ 54 }; 55 56 /* mlx5_common_devx.c */ 57 58 __rte_internal 59 void mlx5_devx_cq_destroy(struct mlx5_devx_cq *cq); 60 61 __rte_internal 62 int mlx5_devx_cq_create(void *ctx, struct mlx5_devx_cq *cq_obj, 63 uint16_t log_desc_n, 64 struct mlx5_devx_cq_attr *attr, int socket); 65 66 __rte_internal 67 void mlx5_devx_sq_destroy(struct mlx5_devx_sq *sq); 68 69 __rte_internal 70 int mlx5_devx_sq_create(void *ctx, struct mlx5_devx_sq *sq_obj, 71 uint16_t log_wqbb_n, 72 struct mlx5_devx_create_sq_attr *attr, int socket); 73 74 __rte_internal 75 void mlx5_devx_qp_destroy(struct mlx5_devx_qp *qp); 76 77 __rte_internal 78 int mlx5_devx_qp_create(void *ctx, struct mlx5_devx_qp *qp_obj, 79 uint16_t log_wqbb_n, 80 struct mlx5_devx_qp_attr *attr, int socket); 81 82 __rte_internal 83 void mlx5_devx_rq_destroy(struct mlx5_devx_rq *rq); 84 85 __rte_internal 86 int mlx5_devx_rq_create(void *ctx, struct mlx5_devx_rq *rq_obj, 87 uint32_t wqe_size, uint16_t log_wqbb_n, 88 struct mlx5_devx_create_rq_attr *attr, int socket); 89 90 __rte_internal 91 int mlx5_devx_qp2rts(struct mlx5_devx_qp *qp, uint32_t remote_qp_id); 92 93 #endif /* RTE_PMD_MLX5_COMMON_DEVX_H_ */ 94