NAME

       mlx5dv_devx_qp_modify - Modifies a verbs QP via DEVX

       mlx5dv_devx_qp_query - Queries a verbs QP via DEVX

       mlx5dv_devx_cq_modify - Modifies a verbs CQ via DEVX

       mlx5dv_devx_cq_query - Queries a verbs CQ via DEVX

       mlx5dv_devx_srq_modify - Modifies a verbs SRQ via DEVX

       mlx5dv_devx_srq_query - Queries a verbs SRQ via DEVX

       mlx5dv_devx_wq_modify - Modifies a verbs WQ via DEVX

       mlx5dv_devx_wq_query - Queries a verbs WQ via DEVX

       mlx5dv_devx_ind_tbl_modify - Modifies a verbs indirection table via DEVX

       mlx5dv_devx_ind_tbl_query - Queries a verbs indirection table via DEVX

SYNOPSIS

              #include <infiniband/mlx5dv.h>
              int mlx5dv_devx_qp_modify(struct ibv_qp *qp, const void *in, size_t inlen,
                                        void *out, size_t outlen);
              int mlx5dv_devx_qp_query(struct ibv_qp *qp, const void *in, size_t inlen,
                                       void *out, size_t outlen);
              int mlx5dv_devx_cq_modify(struct ibv_cq *cq, const void *in, size_t inlen,
                                        void *out, size_t outlen);
              int mlx5dv_devx_cq_query(struct ibv_cq *cq, const void *in, size_t inlen,
                                       void *out, size_t outlen);
              int mlx5dv_devx_srq_modify(struct ibv_srq *srq, const void *in, size_t inlen,
                                         void *out, size_t outlen);
              int mlx5dv_devx_srq_query(struct ibv_srq *srq, const void *in, size_t inlen,
                                        void *out, size_t outlen);
              int mlx5dv_devx_wq_modify(struct ibv_wq *wq, const void *in, size_t inlen,
                                        void *out, size_t outlen);
              int mlx5dv_devx_wq_query(struct ibv_wq *wq, const void *in, size_t inlen,
                                       void *out, size_t outlen);
              int mlx5dv_devx_ind_tbl_modify(struct ibv_rwq_ind_table *ind_tbl,
                                             const void *in, size_t inlen,
                                             void *out, size_t outlen);
              int mlx5dv_devx_ind_tbl_query(struct ibv_rwq_ind_table *ind_tbl,
                                            const void *in, size_t inlen,
                                            void *out, size_t outlen);

DESCRIPTION

       Modify / query a verb object over the DEVX interface.

       The  DEVX  API enables direct access from the user space area to the mlx5 device driver by
       using the KABI mechanism.   The  main  purpose  is  to  make  the  user  space  driver  as
       independent  as  possible from the kernel so that future device functionality and commands
       can be activated with minimal to none kernel changes.

       The above APIs enables modifying/querying a verb object  via  the  DEVX  interface.   This
       enables  interoperability  between  verbs  and  DEVX.   As such an application can use the
       create method from verbs (e.g. ibv_create_qp) and modify and query the created object  via
       DEVX (e.g. mlx5dv_devx_qp_modify).

ARGUMENTS

       qp/cq/wq/srq/ind_tbl
              The ibv_xxx object to issue the action on.

       in     A buffer which contains the command’s input data provided in a device specification
              format.

       inlen  The size of in buffer in bytes.

       out    A buffer  which  contains  the  command’s  output  data  according  to  the  device
              specification format.

       outlen The size of out buffer in bytes.

RETURN VALUE

       Upon success 0 is returned or the value of errno on a failure.

       If  the  error  value is EREMOTEIO, outbox.status outbox.syndrome will contain the command
       failure details.

SEE ALSO

       mlx5dv_open_device, mlx5dv_devx_obj_create

       #AUTHOR

       Yishai Hadas <yishaih@mellanox.com>

                                             mlx5dv_devx_qp[/cq/srq/wq/ind_tbl]_modify / query(3)