| 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.
| 2006-10-31 | libibverbs |