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NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON |
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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 2023-12-22. (At
that time, the date of the most recent commit that was found in
the repository was 2023-12-20.) 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)
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HTML rendering created 2023-12-22 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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