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CentOS 7.0 - man page for ibv_create_ah_from_wc (centos section 3)

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)


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