создать или уничтожить очередь завершения (CQ) (create or destroy a completion queue (CQ))
Имя (Name)
ibv_create_cq, ibv_destroy_cq - create or destroy a completion
queue (CQ)
Синопсис (Synopsis)
#include <infiniband/verbs.h>
struct ibv_cq *ibv_create_cq(struct ibv_context *context, int cqe,
void *cq_context,
struct ibv_comp_channel *channel,
int comp_vector);
int ibv_destroy_cq(struct ibv_cq *cq);
Описание (Description)
ibv_create_cq() creates a completion queue (CQ) with at least cqe
entries for the RDMA device context context. The pointer
cq_context will be used to set user context pointer of the CQ
structure. The argument channel is optional; if not NULL, the
completion channel channel will be used to return completion
events. The CQ will use the completion vector comp_vector for
signaling completion events; it must be at least zero and less
than context->num_comp_vectors.
ibv_destroy_cq() destroys the CQ cq.
Возвращаемое значение (Return value)
ibv_create_cq() returns a pointer to the CQ, or NULL if the
request fails.
ibv_destroy_cq() returns 0 on success, or the value of errno on
failure (which indicates the failure reason).
Примечание (Note)
ibv_create_cq() may create a CQ with size greater than or equal
to the requested size. Check the cqe attribute in the returned CQ
for the actual size.
ibv_destroy_cq() fails if any queue pair is still associated with
this CQ.
Смотри также (See also)
ibv_resize_cq(3), ibv_req_notify_cq(3), ibv_ack_cq_events(3),
ibv_create_qp(3)
