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 /* Verbs header. */ 10 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */ 11 #ifdef PEDANTIC 12 #pragma GCC diagnostic ignored "-Wpedantic" 13 #endif 14 #include <infiniband/verbs.h> 15 #ifdef PEDANTIC 16 #pragma GCC diagnostic error "-Wpedantic" 17 #endif 18 19 #include <rte_eal.h> 20 #include <rte_string_fns.h> 21 22 /* Request types for IPC. */ 23 enum mlx5_mp_req_type { 24 MLX5_MP_REQ_VERBS_CMD_FD = 1, 25 MLX5_MP_REQ_CREATE_MR, 26 MLX5_MP_REQ_START_RXTX, 27 MLX5_MP_REQ_STOP_RXTX, 28 MLX5_MP_REQ_QUEUE_STATE_MODIFY, 29 }; 30 31 struct mlx5_mp_arg_queue_state_modify { 32 uint8_t is_wq; /* Set if WQ. */ 33 uint16_t queue_id; /* DPDK queue ID. */ 34 enum ibv_wq_state state; /* WQ requested state. */ 35 }; 36 37 /* Pameters for IPC. */ 38 struct mlx5_mp_param { 39 enum mlx5_mp_req_type type; 40 int port_id; 41 int result; 42 RTE_STD_C11 43 union { 44 uintptr_t addr; /* MLX5_MP_REQ_CREATE_MR */ 45 struct mlx5_mp_arg_queue_state_modify state_modify; 46 /* MLX5_MP_REQ_QUEUE_STATE_MODIFY */ 47 } args; 48 }; 49 50 /* Identifier of a MP process */ 51 struct mlx5_mp_id { 52 char name[RTE_MP_MAX_NAME_LEN]; 53 uint16_t port_id; 54 }; 55 56 /** Request timeout for IPC. */ 57 #define MLX5_MP_REQ_TIMEOUT_SEC 5 58 59 /** 60 * Initialize IPC message. 61 * 62 * @param[in] port_id 63 * Port ID of the device. 64 * @param[out] msg 65 * Pointer to message to fill in. 66 * @param[in] type 67 * Message type. 68 */ 69 static inline void 70 mp_init_msg(struct mlx5_mp_id *mp_id, struct rte_mp_msg *msg, 71 enum mlx5_mp_req_type type) 72 { 73 struct mlx5_mp_param *param = (struct mlx5_mp_param *)msg->param; 74 75 memset(msg, 0, sizeof(*msg)); 76 strlcpy(msg->name, mp_id->name, sizeof(msg->name)); 77 msg->len_param = sizeof(*param); 78 param->type = type; 79 param->port_id = mp_id->port_id; 80 } 81 82 __rte_experimental 83 int mlx5_mp_init_primary(const char *name, const rte_mp_t primary_action); 84 __rte_experimental 85 void mlx5_mp_uninit_primary(const char *name); 86 __rte_experimental 87 int mlx5_mp_init_secondary(const char *name, const rte_mp_t secondary_action); 88 __rte_experimental 89 void mlx5_mp_uninit_secondary(const char *name); 90 __rte_experimental 91 int mlx5_mp_req_mr_create(struct mlx5_mp_id *mp_id, uintptr_t addr); 92 __rte_experimental 93 int mlx5_mp_req_queue_state_modify(struct mlx5_mp_id *mp_id, 94 struct mlx5_mp_arg_queue_state_modify *sm); 95 __rte_experimental 96 int mlx5_mp_req_verbs_cmd_fd(struct mlx5_mp_id *mp_id); 97 98 #endif /* RTE_PMD_MLX5_COMMON_MP_H_ */ 99