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ibv_set_ece(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | RETURN VALUE | SEE ALSO | AUTHOR | COLOPHON 

IBV_SET_ECE(3)        Libibverbs Programmer’s Manual       IBV_SET_ECE(3)

NAME         top

       ibv_set_ece - set ECE options and use them for QP configuration
       stage.

SYNOPSIS         top

              #include <infiniband/verbs.h>

              int ibv_set_ece(struct ibv_qp *qp, struct ibv_ece *ece);

DESCRIPTION         top

       ibv_set_ece() set ECE options and use them for QP configuration
       stage.

       The desired ECE options will be used during various modify QP
       stages based on supported options in relevant QP state.

ARGUMENTS         top

       qp     The queue pair (QP) associated with the ECE options.

       ## ece Argument
              The requested ECE values.  This is IN/OUT field, the
              accepted options will be returned in this field.

              struct ibv_ece {
                  uint32_t vendor_id;
                  uint32_t options;
                  uint32_t comp_mask;
              };

       vendor_id
              Unique identifier of the provider vendor on the network.
              The providers will set IEEE OUI here to distinguish itself
              in non-homogenius network.

       options
              Provider specific attributes which are supported or needed
              to be enabled by ECE users.

       comp_mask
              Bitmask specifying what fields in the structure are valid.

RETURN VALUE         top

       ibv_set_ece() returns 0 when the call was successful, or the errno
       value which indicates the failure reason.

       EOPNOTSUPP
              libibverbs or provider driver doesn’t support the
              ibv_set_ece() verb.

       EINVAL In one of the following: o The QP is invalid.  o The ECE
              options are invalid.

SEE ALSO         top

       ibv_query_ece(3),

AUTHOR         top

       Leon Romanovsky ⟨leonro@mellanox.com⟩

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 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 is not part of the original manual page), send a mail to
       man-pages@man7.org

libibverbs                      2020-01-22                 IBV_SET_ECE(3)

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