RDMA_POST_RECVV(3)					   Librdmacm Programmer's Manual					RDMA_POST_RECVV(3)

NAME

       rdma_post_recvv - post a work request to receive incoming messages.

SYNOPSIS

       #include <rdma/rdma_verbs.h>

       int rdma_post_recvv (struct rdma_cm_id *id, void *context, struct ibv_sge *sgl, int nsge);

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.

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.

RETURN VALUE

       Returns 0 on success, or -1 on error.  If an error occurs, errno will be set to indicate the failure reason.

NOTES

       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.

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)

librdmacm							    2010-07-19							RDMA_POST_RECVV(3)