MLX5DV_INIT_OBJ(3) Library Functions Manual MLX5DV_INIT_OBJ(3)
NAME
mlx5dv_init_obj - Initialize mlx5 direct verbs object from ibv_xxx
structures
SYNOPSIS
#include <infiniband/mlx5dv.h>
int mlx5dv_init_obj(struct mlx5dv_obj *obj, uint64_t obj_type);
DESCRIPTION
mlx5dv_init_obj() This function will initialize mlx5dv_xxx structs
based on supplied type. The information for initialization is taken
from ibv_xx structs supplied as part of input.
Request information of CQ marks its owned by direct verbs for all con-
sumer index related actions. The initialization type can be combination
of several types together.
struct mlx5dv_qp {
uint32_t *dbrec;
struct {
void *buf;
uint32_t wqe_cnt;
uint32_t stride;
} sq;
struct {
void *buf;
uint32_t wqe_cnt;
uint32_t stride;
} rq;
struct {
void *reg;
uint32_t size;
} bf;
uint64_t comp_mask;
off_t uar_mmap_offset;
uint32_t tirn;
uint32_t tisn;
uint32_t rqn;
uint32_t sqn;
uint64_t tir_icm_address;
};
struct mlx5dv_cq {
void *buf;
uint32_t *dbrec;
uint32_t cqe_cnt;
uint32_t cqe_size;
void *cq_uar;
uint32_t cqn;
uint64_t comp_mask;
};
struct mlx5dv_srq {
void *buf;
uint32_t *dbrec;
uint32_t stride;
uint32_t head;
uint32_t tail;
uint64_t comp_mask;
uint32_t srqn;
};
struct mlx5dv_rwq {
void *buf;
uint32_t *dbrec;
uint32_t wqe_cnt;
uint32_t stride;
uint64_t comp_mask;
};
struct mlx5dv_dm {
void *buf;
uint64_t length;
uint64_t comp_mask;
uint64_t remote_va;
};
struct mlx5dv_ah {
struct mlx5_wqe_av *av;
uint64_t comp_mask;
};
struct mlx5dv_pd {
uint32_t pdn;
uint64_t comp_mask;
};
struct mlx5dv_obj {
struct {
struct ibv_qp *in;
struct mlx5dv_qp *out;
} qp;
struct {
struct ibv_cq *in;
struct mlx5dv_cq *out;
} cq;
struct {
struct ibv_srq *in;
struct mlx5dv_srq *out;
} srq;
struct {
struct ibv_wq *in;
struct mlx5dv_rwq *out;
} rwq;
struct {
struct ibv_dm *in;
struct mlx5dv_dm *out;
} dm;
struct {
struct ibv_ah *in;
struct mlx5dv_ah *out;
} ah;
struct {
struct ibv_pd *in;
struct mlx5dv_pd *out;
} pd;
};
enum mlx5dv_obj_type {
MLX5DV_OBJ_QP = 1 << 0,
MLX5DV_OBJ_CQ = 1 << 1,
MLX5DV_OBJ_SRQ = 1 << 2,
MLX5DV_OBJ_RWQ = 1 << 3,
MLX5DV_OBJ_DM = 1 << 4,
MLX5DV_OBJ_AH = 1 << 5,
MLX5DV_OBJ_PD = 1 << 6,
};
RETURN VALUE
0 on success or the value of errno on failure (which indicates the
failure reason).
NOTES
* The information if doorbell is blueflame is based on
mlx5dv_qp->bf->size, in case of 0 it's not a BF.
* Compatibility masks (comp_mask) are in/out fields.
SEE ALSO
mlx5dv(7)
AUTHORS
Leon Romanovsky <leonro@mellanox.com>
1.0.0 2017-02-02 MLX5DV_INIT_OBJ(3)
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