IBV_CREATE_AH_FROM_WC(3) Libibverbs Programmer's Manual IBV_CREATE_AH_FROM_WC(3)NAME
ibv_init_ah_from_wc, ibv_create_ah_from_wc - initialize or create an address handle (AH) from a work completion
SYNOPSIS
#include <infiniband/verbs.h>
int ibv_init_ah_from_wc(struct ibv_context *context, uint8_t port_num,
struct ibv_wc *wc, struct ibv_grh *grh,
struct ibv_ah_attr *ah_attr);
struct ibv_ah *ibv_create_ah_from_wc(struct ibv_pd *pd,
struct ibv_wc *wc,
struct ibv_grh *grh,
uint8_t port_num);
DESCRIPTION
ibv_init_ah_from_wc() initializes the address handle (AH) attribute structure ah_attr for the RDMA device context context using the port
number port_num, using attributes from the work completion wc and the Global Routing Header (GRH) structure grh.
ibv_create_ah_from_wc() creates an AH associated with the protection domain pd using the port number port_num, using attributes from the
work completion wc and the Global Routing Header (GRH) structure grh.
RETURN VALUE
ibv_init_ah_from_wc() returns 0 on success, and -1 on error.
ibv_create_ah_from_wc() returns a pointer to the created AH, or NULL if the request fails.
NOTES
The filled structure ah_attr returned from ibv_init_ah_from_wc() can be used to create a new AH using ibv_create_ah().
SEE ALSO ibv_open_device(3), ibv_alloc_pd(3), ibv_create_ah(3), ibv_destroy_ah(3), ibv_poll_cq(3)AUTHORS
Dotan Barak <dotanba@gmail.com>
libibverbs 2006-10-31 IBV_CREATE_AH_FROM_WC(3)
Check Out this Related Man Page
IBV_CREATE_AH(3) Libibverbs Programmer's Manual 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>
libibverbs 2006-10-31 IBV_CREATE_AH(3)
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