1IBV_CREATE_SRQ(3)       Libibverbs Programmer's Manual       IBV_CREATE_SRQ(3)
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NAME

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

10       #include <infiniband/verbs.h>
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12       struct ibv_srq *ibv_create_srq(struct ibv_pd *pd, struct
13                                      ibv_srq_init_attr *srq_init_attr);
14       int ibv_destroy_srq(struct ibv_srq *srq);
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DESCRIPTION

17       ibv_create_srq() creates a shared receive queue (SRQ)  associated  with
18       the   protection   domain   pd.    The  argument  srq_init_attr  is  an
19       ibv_srq_init_attr struct, as defined in <infiniband/verbs.h>.
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21       struct ibv_srq_init_attr {
22               void                   *srq_context;    /* Associated context of the SRQ */
23               struct ibv_srq_attr     attr;           /* SRQ attributes */
24       };
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26       struct ibv_srq_attr {
27               uint32_t                max_wr;         /* Requested max number of outstanding work requests (WRs) in the SRQ */
28               uint32_t                max_sge;        /* Requested max number of scatter elements per WR */
29               uint32_t                srq_limit;      /* The limit value of the SRQ (irrelevant for ibv_create_srq) */
30       };
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32       The function ibv_create_srq() will update the srq_init_attr struct with
33       the  original  values of the SRQ that was created; the values of max_wr
34       and max_sge will be greater than or equal to the values requested.
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36       ibv_destroy_srq() destroys the SRQ srq.
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RETURN VALUE

39       ibv_create_srq() returns a pointer to the created SRQ, or NULL  if  the
40       request fails.
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42       ibv_destroy_srq()  returns 0 on success, or the value of errno on fail‐
43       ure (which indicates the failure reason).
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NOTES

46       ibv_destroy_srq() fails if any queue pair is still associated with this
47       SRQ.
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SEE ALSO

50       ibv_alloc_pd(3), ibv_modify_srq(3), ibv_query_srq(3)
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AUTHORS

53       Dotan Barak <dotanb@mellanox.co.il>
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57libibverbs                        2006-10-31                 IBV_CREATE_SRQ(3)