Manual Pages  — IBV_QUERY_SRQ

ibv_query_srq - get the attributes of a shared receive queue (SRQ)

SYNOPSIS DESCRIPTION RETURN VALUE NOTES SEE ALSO AUTHORS

#include <infiniband/verbs.h> 

int ibv_query_srq(struct ibv_srq *srq, struct ibv_srq_attr *srq_attr); 

ibv_query_srq() gets the attributes of the SRQ srq and returns them through the pointer srq_attr. The argument srq_attr is an ibv_srq_attr struct, as defined in <infiniband/verbs.h>.

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

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

If the value returned for srq_limit is 0, then the SRQ limit reached ("low watermark") event is not (or no longer) armed, and no asynchronous events will be generated until the event is rearmed.