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_MEMPOOL_REGISTER, 18 MLX5_MP_REQ_MEMPOOL_UNREGISTER, 19 MLX5_MP_REQ_START_RXTX, 20 MLX5_MP_REQ_STOP_RXTX, 21 MLX5_MP_REQ_QUEUE_STATE_MODIFY, 22 MLX5_MP_REQ_QUEUE_RX_STOP, 23 MLX5_MP_REQ_QUEUE_RX_START, 24 MLX5_MP_REQ_QUEUE_TX_STOP, 25 MLX5_MP_REQ_QUEUE_TX_START, 26 }; 27 28 struct mlx5_mp_arg_queue_state_modify { 29 uint8_t is_wq; /* Set if WQ. */ 30 uint16_t queue_id; /* DPDK queue ID. */ 31 enum ibv_wq_state state; /* WQ requested state. */ 32 }; 33 34 struct mlx5_mp_arg_queue_id { 35 uint16_t queue_id; /* DPDK queue ID. */ 36 }; 37 38 struct mlx5_mp_arg_mempool_reg { 39 struct mlx5_mr_share_cache *share_cache; 40 void *pd; /* NULL for MLX5_MP_REQ_MEMPOOL_UNREGISTER */ 41 struct rte_mempool *mempool; 42 }; 43 44 /* Pameters for IPC. */ 45 struct mlx5_mp_param { 46 enum mlx5_mp_req_type type; 47 int port_id; 48 int result; 49 RTE_STD_C11 50 union { 51 uintptr_t addr; /* MLX5_MP_REQ_CREATE_MR */ 52 struct mlx5_mp_arg_mempool_reg mempool_reg; 53 /* MLX5_MP_REQ_MEMPOOL_(UN)REGISTER */ 54 struct mlx5_mp_arg_queue_state_modify state_modify; 55 /* MLX5_MP_REQ_QUEUE_STATE_MODIFY */ 56 struct mlx5_mp_arg_queue_id queue_id; 57 /* MLX5_MP_REQ_QUEUE_RX/TX_START/STOP */ 58 } args; 59 }; 60 61 /* Identifier of a MP process */ 62 struct mlx5_mp_id { 63 char name[RTE_MP_MAX_NAME_LEN]; 64 uint16_t port_id; 65 }; 66 67 /** Key string for IPC. */ 68 #define MLX5_MP_NAME "common_mlx5_mp" 69 70 /** Initialize a multi-process ID. */ 71 static inline void 72 mlx5_mp_id_init(struct mlx5_mp_id *mp_id, uint16_t port_id) 73 { 74 mp_id->port_id = port_id; 75 strlcpy(mp_id->name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN); 76 } 77 78 /** Request timeout for IPC. */ 79 #define MLX5_MP_REQ_TIMEOUT_SEC 5 80 81 /** 82 * Initialize IPC message. 83 * 84 * @param[in] port_id 85 * Port ID of the device. 86 * @param[out] msg 87 * Pointer to message to fill in. 88 * @param[in] type 89 * Message type. 90 */ 91 static inline void 92 mp_init_msg(struct mlx5_mp_id *mp_id, struct rte_mp_msg *msg, 93 enum mlx5_mp_req_type type) 94 { 95 struct mlx5_mp_param *param = (struct mlx5_mp_param *)msg->param; 96 97 memset(msg, 0, sizeof(*msg)); 98 strlcpy(msg->name, mp_id->name, sizeof(msg->name)); 99 msg->len_param = sizeof(*param); 100 param->type = type; 101 param->port_id = mp_id->port_id; 102 } 103 104 __rte_internal 105 int mlx5_mp_init_primary(const char *name, const rte_mp_t primary_action); 106 __rte_internal 107 void mlx5_mp_uninit_primary(const char *name); 108 __rte_internal 109 int mlx5_mp_init_secondary(const char *name, const rte_mp_t secondary_action); 110 __rte_internal 111 void mlx5_mp_uninit_secondary(const char *name); 112 __rte_internal 113 int mlx5_mp_req_mr_create(struct mlx5_mp_id *mp_id, uintptr_t addr); 114 __rte_internal 115 int mlx5_mp_req_mempool_reg(struct mlx5_mp_id *mp_id, 116 struct mlx5_mr_share_cache *share_cache, void *pd, 117 struct rte_mempool *mempool, bool reg); 118 __rte_internal 119 int mlx5_mp_req_queue_state_modify(struct mlx5_mp_id *mp_id, 120 struct mlx5_mp_arg_queue_state_modify *sm); 121 __rte_internal 122 int mlx5_mp_req_verbs_cmd_fd(struct mlx5_mp_id *mp_id); 123 124 #endif /* RTE_PMD_MLX5_COMMON_MP_H_ */ 125