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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 pro-
       tection	domain pd.  The	argument attr is an ibv_ah_attr	struct,	as de-
       fined 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 re-
       quest 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)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | AUTHORS

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