RDMA_POST_SENDV(3) Librdmacm Programmer's Manual RDMA_POST_SENDV(3)NAMErdma_post_sendv - post a work request to send a message.
SYNOPSIS
#include <rdma/rdma_verbs.h>
int rdma_post_sendv (struct rdma_cm_id *id, void *context, struct
ibv_sge *slg, int nsge, int flags);
ARGUMENTS
id A reference to a communication identifier where the message
buffer will be posted.
context User-defined context associated with the request.
slg A scatter-gather list of memory buffers posted as a single
request.
nsge The number of scatter-gather entries in the slg array.
flags Optional flags used to control the send operation.
DESCRIPTION
Posts a work request to the send queue of the queue pair associated
with the rdma_cm_id. The contents of the posted buffers will be sent
to the remote peer of a connection.
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 remote peer has queued a
receive request before issuing the send operations. For a list of sup‐
ported flags, see ibv_post_send. Unless the send request is using
inline data, the message buffers must have been registered before being
posted, and the buffers must remain registered until the send com‐
pletes.
Send operations may not be posted to an rdma_cm_id or the corresponding
queue pair until it has been connected.
The user-defined context associated with the send request will be
returned to the user through the work completion wr_id, work request
identifier, field.
SEE ALSOrdma_cm(7), rdma_connect(3), rdma_accept(3), ibv_post_send(3),
rdma_post_send(3), rdma_post_recv(3)librdmacm 2010-07-19 RDMA_POST_SENDV(3)
