efadv_query_ah - Query EFA specific Address Handle attributes

Gal Pressman galpress@amazon.com efa 2019-05-19 EFADV_QUERY_AH(3)

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.

efadv_query_ah - Query EFA specific Address Handle attributes

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

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

efadv(7)

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