IBV_CREATE_AH(3)
NAME
ibv_create_ah, ibv_destroy_ah - create or destroy an address handle
(AH)
SYNOPSIS
#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);
DESCRIPTION
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 <dotanba@gmail.com>