1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2018 6WIND S.A. 3 * Copyright 2018 Mellanox Technologies, Ltd 4 */ 5 6 #ifndef RTE_PMD_MLX5_COMMON_MP_H_ 7 #define RTE_PMD_MLX5_COMMON_MP_H_ 8 9 #include <mlx5_glue.h> 10 #include <rte_eal.h> 11 #include <rte_string_fns.h> 12 13 /* Request types for IPC. */ 14 enum mlx5_mp_req_type { 15 MLX5_MP_REQ_VERBS_CMD_FD = 1, 16 MLX5_MP_REQ_CREATE_MR, 17 MLX5_MP_REQ_START_RXTX, 18 MLX5_MP_REQ_STOP_RXTX, 19 MLX5_MP_REQ_QUEUE_STATE_MODIFY, 20 MLX5_MP_REQ_QUEUE_RX_STOP, 21 MLX5_MP_REQ_QUEUE_RX_START, 22 MLX5_MP_REQ_QUEUE_TX_STOP, 23 MLX5_MP_REQ_QUEUE_TX_START, 24 }; 25 26 struct mlx5_mp_arg_queue_state_modify { 27 uint8_t is_wq; /* Set if WQ. */ 28 uint16_t queue_id; /* DPDK queue ID. */ 29 enum ibv_wq_state state; /* WQ requested state. */ 30 }; 31 32 struct mlx5_mp_arg_queue_id { 33 uint16_t queue_id; /* DPDK queue ID. */ 34 }; 35 36 /* Pameters for IPC. */ 37 struct mlx5_mp_param { 38 enum mlx5_mp_req_type type; 39 int port_id; 40 int result; 41 RTE_STD_C11 42 union { 43 uintptr_t addr; /* MLX5_MP_REQ_CREATE_MR */ 44 struct mlx5_mp_arg_queue_state_modify state_modify; 45 /* MLX5_MP_REQ_QUEUE_STATE_MODIFY */ 46 struct mlx5_mp_arg_queue_id queue_id; 47 /* MLX5_MP_REQ_QUEUE_RX/TX_START/STOP */ 48 } args; 49 }; 50 51 /* Identifier of a MP process */ 52 struct mlx5_mp_id { 53 char name[RTE_MP_MAX_NAME_LEN]; 54 uint16_t port_id; 55 }; 56 57 /** Request timeout for IPC. */ 58 #define MLX5_MP_REQ_TIMEOUT_SEC 5 59 60 /** 61 * Initialize IPC message. 62 * 63 * @param[in] port_id 64 * Port ID of the device. 65 * @param[out] msg 66 * Pointer to message to fill in. 67 * @param[in] type 68 * Message type. 69 */ 70 static inline void 71 mp_init_msg(struct mlx5_mp_id *mp_id, struct rte_mp_msg *msg, 72 enum mlx5_mp_req_type type) 73 { 74 struct mlx5_mp_param *param = (struct mlx5_mp_param *)msg->param; 75 76 memset(msg, 0, sizeof(*msg)); 77 strlcpy(msg->name, mp_id->name, sizeof(msg->name)); 78 msg->len_param = sizeof(*param); 79 param->type = type; 80 param->port_id = mp_id->port_id; 81 } 82 83 __rte_internal 84 int mlx5_mp_init_primary(const char *name, const rte_mp_t primary_action); 85 __rte_internal 86 void mlx5_mp_uninit_primary(const char *name); 87 __rte_internal 88 int mlx5_mp_init_secondary(const char *name, const rte_mp_t secondary_action); 89 __rte_internal 90 void mlx5_mp_uninit_secondary(const char *name); 91 __rte_internal 92 int mlx5_mp_req_mr_create(struct mlx5_mp_id *mp_id, uintptr_t addr); 93 __rte_internal 94 int mlx5_mp_req_queue_state_modify(struct mlx5_mp_id *mp_id, 95 struct mlx5_mp_arg_queue_state_modify *sm); 96 __rte_internal 97 int mlx5_mp_req_verbs_cmd_fd(struct mlx5_mp_id *mp_id); 98 99 #endif /* RTE_PMD_MLX5_COMMON_MP_H_ */ 100