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.\" -*- nroff -*- .\" .TH IBV_CREATE_AH_FROM_WC 3 2006-10-31 libibverbs "Libibverbs Programmer's Manual" .SH "NAME" ibv_init_ah_from_wc, ibv_create_ah_from_wc \- initialize or create an address handle (AH) from a work completion .SH "SYNOPSIS" .nf .B #include <infiniband/verbs.h> .sp .BI "int ibv_init_ah_from_wc(struct ibv_context " "*context" ", uint8_t " "port_num" , .BI " struct ibv_wc " "*wc" ", struct ibv_grh " "*grh" , .BI " struct ibv_ah_attr " "*ah_attr" ); .sp .BI "struct ibv_ah *ibv_create_ah_from_wc(struct ibv_pd " "*pd" , .BI " struct ibv_wc " "*wc" , .BI " struct ibv_grh " "*grh" , .BI " uint8_t " "port_num" ); .fi .SH "DESCRIPTION" .B ibv_init_ah_from_wc() initializes the address handle (AH) attribute structure .I ah_attr for the RDMA device context .I context using the port number .I port_num\fR, using attributes from the work completion .I wc and the Global Routing Header (GRH) structure .I grh\fR. .PP .B ibv_create_ah_from_wc() creates an AH associated with the protection domain .I pd using the port number .I port_num\fR, using attributes from the work completion .I wc and the Global Routing Header (GRH) structure .I grh\fR. .SH "RETURN VALUE" .B ibv_init_ah_from_wc() returns 0 on success, and \-1 on error. .PP .B ibv_create_ah_from_wc() returns a pointer to the created AH, or NULL if the request fails. .SH "NOTES" The filled structure .I ah_attr returned from .B ibv_init_ah_from_wc() can be used to create a new AH using .B ibv_create_ah()\fR. .SH "SEE ALSO" .BR ibv_open_device (3), .BR ibv_alloc_pd (3), .BR ibv_create_ah (3), .BR ibv_destroy_ah (3), .BR ibv_poll_cq (3) .SH "AUTHORS" .TP Dotan Barak <dotanb@mellanox.co.il>