rdma_get_recv_comp(3) — Linux manual page


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

NAME         top

       rdma_get_recv_comp - retrieves a completed receive request.

SYNOPSIS         top

       #include <rdma/rdma_verbs.h>

       int rdma_get_recv_comp (struct rdma_cm_id *id, struct ibv_wc *wc);

ARGUMENTS         top

       id          A reference to a communication identifier to check for

       wc          A reference to a work completion structure to fill in.

DESCRIPTION         top

       Retrieves a completed work request for a receive operation.
       Information about the completed request is returned through the wc
       parameter, with the wr_id set to the context of the request.  For
       details on the work completion structure, see ibv_poll_cq.

RETURN VALUE         top

       Returns the number of returned completions (0 or 1) on success, or -1
       on error.  If an error occurs, errno will be set to indicate the
       failure reason.

NOTES         top

       This calls polls the receive completion queue associated with an
       rdma_cm_id.  If a completion is not found, the call blocks until a
       request completes.  This call should only be used on rdma_cm_id's
       that do not share CQs with other rdma_cm_id's, and maintain separate
       CQs for sends and receive completions.

SEE ALSO         top

       rdma_cm(7), ibv_poll_cq(3), rdma_get_send_comp(3), rdma_post_send(3),
       rdma_post_read(3), rdma_post_write(3)

COLOPHON         top

       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 2020-11-01.  (At
       that time, the date of the most recent commit that was found in the
       repository was 2020-10-29.)  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 im‐
       provements 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_GET_RECV_COMP(3)

Pages that refer to this page: rdma_get_send_comp(3)rdma_cm(7)