ibv_set_ece - Man Page

#include <infiniband/verbs.h>

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

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.

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.

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.

ibv_query_ece(3),

Leon Romanovsky leonro@mellanox.com\c

ibv_query_ece(3), mlx5dv_map_ah_to_qp(3).