разместить запрос на работу для получения входящих сообщений (post a work request to receive incoming messages.)
Имя (Name)
rdma_post_recvv - post a work request to receive incoming
messages.
Синопсис (Synopsis)
#include <rdma/rdma_verbs.h>
int rdma_post_recvv (struct rdma_cm_id *id, void *context, struct
ibv_sge *sgl, int nsge);
Аргументы (Arguments)
id A reference to a communication identifier where the
message buffer(s) will be posted.
context User-defined context associated with the request.
sgl A scatter-gather list of memory buffers posted as a
single request.
nsge The number of scatter-gather entries in the sgl
array.
Описание (Description)
Posts a single work request to the receive queue of the queue
pair associated with the rdma_cm_id. The posted buffers will be
queued to receive an incoming message sent by the remote peer.
Возвращаемое значение (Return value)
Returns 0 on success, or -1 on error. If an error occurs, errno
will be set to indicate the failure reason.
Примечание (Note)
The user is responsible for ensuring that the receive is posted,
and the total buffer space is large enough to contain all sent
data before the peer posts the corresponding send message. The
message buffers must have been registered before being posted,
and the buffers must remain registered until the receive
completes.
Messages may be posted to an rdma_cm_id only after a queue pair
has been associated with it. A queue pair is bound to an
rdma_cm_id after calling rdma_create_ep or rdma_create_qp, if the
rdma_cm_id is allocated using rdma_create_id.
The user-defined context associated with the receive request will
be returned to the user through the work completion wr_id, work
request identifier, field.
Смотри также (See also)
rdma_cm(7), rdma_create_id(3), rdma_create_ep(3),
rdma_create_qp(3), rdma_reg_read(3), ibv_reg_mr(3),
ibv_dereg_mr(3), rdma_post_recv(3), rdma_post_send(3)
