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>