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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | AUTHORS | COLOPHON |
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MLX5DV_INIT_OBJ(3) Library Functions Manual MLX5DV_INIT_OBJ(3)
mlx5dv_init_obj - Initialize mlx5 direct verbs object from
ibv_xxx structures
#include <infiniband/mlx5dv.h>
int mlx5dv_init_obj(struct mlx5dv_obj *obj, uint64_t obj_type);
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
consumer 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,
};
0 on success or the value of errno on failure (which indicates
the failure reason).
* 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.
mlx5dv(7)
Leon Romanovsky <[email protected]>
This page is part of the rdma-core (RDMA Core Userspace Libraries
and Daemons) project. Information about the project can be found
at ⟨https://github.com/linux-rdma/rdma-core⟩. If you have a bug
report for this manual page, send it to
[email protected]. This page was obtained from the
project's upstream Git repository
⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2024-06-14. (At
that time, the date of the most recent commit that was found in
the repository was 2024-06-10.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
1.0.0 2017-02-02 MLX5DV_INIT_OBJ(3)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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