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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON |
RDMA_POST_SEND(3) Librdmacm Programmer's Manual RDMA_POST_SEND(3)
rdma_post_send - post a work request to send a message.
#include <rdma/rdma_verbs.h>
int rdma_post_send (struct rdma_cm_id *id, void *context, void *addr,
size_t length, struct ibv_mr *mr, int flags);
id A reference to a communication identifier where the
message buffer will be posted.
context User-defined context associated with the request.
addr The address of the memory buffer to post.
length The length of the memory buffer.
mr Optional registered memory region associated with the
posted buffer.
flags Optional flags used to control the send operation.
Posts a work request to the send queue of the queue pair associated
with the rdma_cm_id. The contents of the posted buffer will be sent
to the remote peer of a connection.
Returns 0 on success, or -1 on error. If an error occurs, errno will
be set to indicate the failure reason.
The user is responsible for ensuring that the remote peer has queued
a receive request before issuing the send operations. For a list of
supported flags, see ibv_post_send. Unless the send request is using
inline data, the message buffer must have been registered before
being posted, with the mr parameter referencing the registration.
The buffer must remain registered until the send completes.
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.
rdma_cm(7), rdma_connect(3), rdma_accept(3), ibv_post_send(3),
rdma_post_sendv(3), rdma_post_recv(3)
This page is part of the rdma-core (RDMA Core Userspace Libraries and
Daemons) project. Information about the project can be found at
⟨https://github.com/linux-rdma/rdma-core⟩. If you have a bug report
for this manual page, send it to linux-rdma@vger.kernel.org. This
page was obtained from the project's upstream Git repository
⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2020-08-13. (At
that time, the date of the most recent commit that was found in the
repository was 2020-08-05.) If you discover any rendering problems
in this HTML version of the page, or you believe there is a better or
more up-to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not part
of the original manual page), send a mail to man-pages@man7.org
librdmacm 2010-07-19 RDMA_POST_SEND(3)
Pages that refer to this page: rdma_get_recv_comp(3) , rdma_get_send_comp(3) , rdma_post_recv(3) , rdma_post_recvv(3) , rdma_post_sendv(3) , rdma_reg_msgs(3) , rdma_cm(7)