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ibv_create_srq(3) [centos man page]

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

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> libibverbs 2006-10-31 IBV_CREATE_SRQ(3)

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

NAME
ibv_create_srq_ex, ibv_destroy_srq - create or destroy a shared receive queue (SRQ) SYNOPSIS
#include <infiniband/verbs.h> struct ibv_srq *ibv_create_srq_ex(struct ibv_context *context, struct ibv_srq_init_attr_ex *srq_init_attr_ex); int ibv_destroy_srq(struct ibv_srq *srq); DESCRIPTION
ibv_create_srq_ex() creates a shared receive queue (SRQ) supporting both basic and xrc modes. The argument srq_init_attr_ex is an ibv_srq_init_attr_ex struct, as defined in <infiniband/verbs.h>. struct ibv_srq_init_attr_ex { void *srq_context; /* Associated context of the SRQ */ struct ibv_srq_attr attr; /* SRQ attributes */ uint32_t comp_mask; /* Identifies valid fields */ enum ibv_srq_type srq_type; /* Basic / XRC */ struct ibv_pd *pd; /* PD associated with the SRQ */ struct ibv_xrcd *xrcd; /* XRC domain to associate with the SRQ */ struct ibv_cq *cq; /* CQ to associate with the SRQ for XRC mode */ }; 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 */ }; The function ibv_create_srq_ex() will update the srq_init_attr_ex 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_ex() 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
Yishai Hadas <yishaih@mellanox.com> libibverbs 2013-06-26 IBV_CREATE_SRQ_EX(3)
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