EFADV_QUERY_AH(3)

NAME
efadv_query_ah - Query EFA specific Address Handle attributes

SYNOPSIS

        #include <infiniband/efadv.h>
        int efadv_query_ah(struct ibv_ah *ibvah, struct efadv_ah_attr *attr,
                   uint32_t inlen);

DESCRIPTION
efadv_query_ah() queries device-specific Address Handle attributes.

Compatibility is handled using the comp_mask and inlen fields.

        struct efadv_ah_attr {
            uint64_t comp_mask;
            uint16_t ahn;
            uint8_t reserved[6];
        };

inlen
    In: Size of struct efadv_ah_attr.

comp_mask
    Compatibility mask.

ahn Device’s Address Handle number.

RETURN VALUE
efadv_query_ah() returns 0 on success, or the value of errno on failure (which indicates the failure reason).

SEE ALSO
efadv(7)

NOTES

•   Compatibility mask (comp_mask) is an out field and currently has no values.

AUTHORS
Gal Pressman galpress@amazon.com