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ibv_destroy_ah

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>