IBV_QUERY_ECE

Section: Libibverbs Programmer\[cq]s Manual (3)
Updated: 2020-01-22
Page Index

NAME

ibv_query_ece - query ECE options.


#include <infiniband/verbs.h>

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

ibv_query_ece() query ECE options.

Return to the user current ECE state for the QP.

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.

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.