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

       *id    RDMA communication identifier.

       *ece   ECE struct to be filled.

       Leon Romanovsky leonro@mellanox.com

librdmacm                                          2020-02-02                             RDMA_GET_REMOTE_ECE(3)

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()

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

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.

rdma_cm(7), rdma_set_local_ece(3)

              #include <rdma/rdma_cma.h>

              int rdma_get_remote_ece(struct rdma_cm_id *id, struct ibv_ece *ece);