-*- nroff -*-
UMAD_SET_GRH_NET 3 "May 24, 2007" "OpenIB" "OpenIB Programmer\'s Manual"
"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>