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 rea‐
       son).

SEE ALSO

       efadv(7)

NOTES

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

AUTHORS

       Gal Pressman <galpress@amazon.com>

efa                                                2019-05-19                                  EFADV_QUERY_AH(3)