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IBV_CREATE_SRQ(3)       Libibverbs Programmer's Manual       IBV_CREATE_SRQ(3)

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

       #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);

       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.

       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).

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

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

       Dotan Barak <>

libibverbs                        2006-10-31                 IBV_CREATE_SRQ(3)