IBV_QUERY_ECE(3)        Libibverbs Programmer's Manual        IBV_QUERY_ECE(3)

NAME
       ibv_query_ece - query ECE options.

SYNOPSIS
              #include <infiniband/verbs.h>

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

DESCRIPTION
       ibv_query_ece() query ECE options.

       Return to the user current ECE state for the QP.

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

       ## ece Argument
              The ECE values.

              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.

       comp_mask
              Bitmask specifying what fields in the structure are valid.

RETURN VALUE
       ibv_query_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
       ibv_set_ece(3),

AUTHOR
       Leon Romanovsky <leonro@mellanox.com>

libibverbs                        2020-01-22                  IBV_QUERY_ECE(3)