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RDMA_POST_SENDV(3) Librdmacm Programmer's Manual RDMA_POST_SENDV(3) NAME rdma_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 in- line 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 re- turned to the user through the work completion wr_id, work request identifier, field. SEE ALSO rdma_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)