-*- nroff -*-

ibv_create_ah, ibv_destroy_ah - create or destroy an address handle (AH)

 #include <infiniband/verbs.h>  "struct ibv_ah *ibv_create_ah(struct ibv_pd " "*pd" ",  " struct ibv_ah_attr " "*attr" ");  "int ibv_destroy_ah(struct ibv_ah " "*ah" "); 

ibv_create_ah() creates an address handle (AH) associated with the protection domain pd. The argument attr is an ibv_ah_attr struct, as defined in <infiniband/verbs.h>.

struct ibv_ah_attr {
struct ibv_global_route grh; /* Global Routing Header (GRH) attributes */
uint16_t dlid; /* Destination LID */
uint8_t sl; /* Service Level */
uint8_t src_path_bits; /* Source path bits */
uint8_t static_rate; /* Maximum static rate */
uint8_t is_global; /* GRH attributes are valid */
uint8_t port_num; /* Physical port number */
};
struct ibv_global_route {
union ibv_gid dgid; /* Destination GID or MGID */
uint32_t flow_label; /* Flow label */
uint8_t sgid_index; /* Source GID index */
uint8_t hop_limit; /* Hop limit */
uint8_t traffic_class; /* Traffic class */
};


 ibv_destroy_ah() destroys the AH
 ah. 
 "RETURN VALUE"
 ibv_create_ah() returns a pointer to the created AH, or NULL if the request fails.

 ibv_destroy_ah() returns 0 on success, or the value of errno on failure (which indicates the failure reason).
 "SEE ALSO"
 ibv_alloc_pd (3),  ibv_init_ah_from_wc (3),  ibv_create_ah_from_wc (3) 
 "AUTHORS"

Dotan Barak <dotanb@mellanox.co.il>