umad_set_grh_net

UMAD_SET_GRH_NET(3)	  OpenIB Programmer´s Manual	  UMAD_SET_GRH_NET(3)



NAME
       umad_set_grh_net	 -  set	 GRH  fields within umad buffer using network
       ordering

SYNOPSIS
       #include <infiniband/umad.h>

       int umad_set_grh_net(void *umad, void *mad_addr);

DESCRIPTION
       umad_set_grh_net() sets the GRH fields (grh_present,  gid,  hop_limit,
       traffic_class,  flow_label)  within the specified umad buffer based on
       the mad_addr supplied. The provided mad_addr fields are expected to be
       in network order.  If the mad_addr pointer supplied is NULL, no GRH is
       set.  The argument mad_addr is a pointer to an  ib_mad_addr_t  struct,
       as  specified  in <infiniband/umad.h>.  The argument umad is a pointer
       to an ib_user_mad_t struct, as specified in <infiniband/umad.h>.

       typedef struct ib_mad_addr {
	       uint32_t qpn;
	       uint32_t qkey;
	       uint16_t lid;
	       uint8_t	sl;
	       uint8_t	path_bits;
	       uint8_t	grh_present;
	       uint8_t	gid_index;
	       uint8_t	hop_limit;
	       uint8_t	traffic_class;
	       uint8_t	gid[16];
	       uint32_t flow_label;
       } ib_mad_addr_t;

       typedef struct ib_user_mad {
	       uint32_t agent_id;
	       uint32_t status;
	       uint32_t timeout_ms;
	       uint32_t retries;
	       uint32_t length;
	       ib_mad_addr_t addr;
	       uint8_t	data[0];
       } ib_user_mad_t;

RETURN VALUE
       umad_set_grh_net() returns 0 on	success,  and  a  negative  value  on
       errors. Currently, there are no errors indicated.

KNOWN BUGS
       Not implemented.

SEE ALSO
       umad_set_grh(3)

AUTHOR
       Hal Rosenstock <halr@voltaire.com>



OpenIB				 May 24, 2007		  UMAD_SET_GRH_NET(3)