NAME

       ibv_create_srq, ibv_destroy_srq - create or destroy a shared receive queue (SRQ)

SYNOPSIS

       #include <infiniband/verbs.h>

       struct ibv_srq *ibv_create_srq(struct ibv_pd *pd, struct
                                      ibv_srq_init_attr *srq_init_attr);

       int ibv_destroy_srq(struct ibv_srq *srq);

DESCRIPTION

       ibv_create_srq()  creates  a  shared  receive  queue  (SRQ) associated with the protection
       domain pd.  The argument srq_init_attr is  an  ibv_srq_init_attr  struct,  as  defined  in
       <infiniband/verbs.h>.

       struct ibv_srq_init_attr {
               void                   *srq_context;    /* Associated context of the SRQ */
               struct ibv_srq_attr     attr;           /* SRQ attributes */
       };

       struct ibv_srq_attr {
               uint32_t                max_wr;         /* Requested max number of outstanding work requests (WRs) in the SRQ */
               uint32_t                max_sge;        /* Requested max number of scatter elements per WR */
               uint32_t                srq_limit;      /* The limit value of the SRQ (irrelevant for ibv_create_srq) */
       };

       The  function  ibv_create_srq()  will  update  the  srq_init_attr struct with the original
       values of the SRQ that was created; the values of max_wr and max_sge will be greater  than
       or equal to the values requested.

       ibv_destroy_srq() destroys the SRQ srq.

RETURN VALUE

       ibv_create_srq() returns a pointer to the created SRQ, or NULL if the request fails.

       ibv_destroy_srq()  returns 0 on success, or the value of errno on failure (which indicates
       the failure reason).

NOTES

       ibv_destroy_srq() fails if any queue pair is still associated with this SRQ.

SEE ALSO

       ibv_alloc_pd(3), ibv_modify_srq(3), ibv_query_srq(3)

AUTHORS

       Dotan Barak <dotanba@gmail.com>