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rdma_get_remote_ece(3) — Linux manual page

RDMA_GE...MOTE_ECE(3) Librdmacm Programmer’s ManualRDMA_GE...MOTE_ECE(3)

NAME        top

       rdma_get_remote_ece - Get remote ECE paraemters as received from       the peer.

SYNOPSIS        top

              #include <rdma/rdma_cma.h>              int rdma_get_remote_ece(struct rdma_cm_id *id, struct ibv_ece *ece);

DESCRIPTION        top

rdma_get_remote_ece()get ECE parameters as were received from the       communication peer.       This function is suppose to be used by the users of external QPs.       The call needs to be performed before replying to the peer and       needed to allow for the passive side to know ECE options of other       side.       Being used by external QP and RDMA_CM doesn’t manage that QP, the       peer needs to call to libibverbs API by itself.       Usual flow for the passive side will be:       • ibv_create_qp() <- create data QP.       • ece = rdma_get_remote_ece() <- get ECE options from remote peer       • ibv_set_ece(ece) <- set local ECE options with data received         from the peer.       • ibv_modify_qp() <- enable data QP.       • rdma_set_local_ece(ece) <- set desired ECE options after         respective libibverbs provider masked unsupported options.       • rdma_accept()/rdma_establish()/rdma_reject_ece()

ARGUMENTS        top

       *id    RDMA communication identifier.       *ece   ECE struct to be filled.

RETURN VALUE        top

rdma_get_remote_ece()returns 0 on success, or -1 on error.  If an       error occurs, errno will be set to indicate the failure reason.

SEE ALSO        top

rdma_cm(7), rdma_set_local_ece(3)

AUTHOR        top

       Leon Romanovsky ⟨leonro@mellanox.com⟩

COLOPHON        top

       This page is part of therdma-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 2025-08-11.  (At       that time, the date of the most recent commit that was found in       the repository was 2025-08-04.)  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 isnot part of the original manual page), send a mail to       man-pages@man7.orglibrdmacm                       2020-02-02RDMA_GE...MOTE_ECE(3)

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