| IBV_MODIFY_CQ(3) | Libibverbs Programmer's Manual | IBV_MODIFY_CQ(3) |
ibv_modify_cq - modify a completion queue (CQ)
#include <infiniband/verbs.h> int ibv_modify_cq(struct ibv_cq *cq, struct ibv_modify_cq_attr *cq_attr);
ibv_modify_cq() modify a CQ cq. The argument cq_attr is an ibv_modify_cq_attr struct, as defined in <infiniband/verbs.h>.
struct ibv_moderate_cq {
uint16_t cq_count; /* number of completions per event */
uint16_t cq_period; /* in micro seconds */
};
struct ibv_modify_cq_attr {
uint32_t attr_mask;
struct ibv_moderate_cq moderate;
};
The function ibv_modify_cq() will modify the CQ, based on the given cq_attr->attr_mask
returns 0 on success, or the value of errno on failure (which indicates the failure reason).
| 2017-10-20 | libibverbs |