UMAD_STATUS(3) OpenIB Programmer's Manual UMAD_STATUS(3)NAME
umad_status - get the status of a umad buffer
SYNOPSIS
#include <infiniband/umad.h>
int umad_status(void *umad);
DESCRIPTION
umad_status() get the internal umad status field.
RETURN VALUE
After a packet is received, umad_status() returns 0 on a successful receive, or a non zero status. ETIMEDOUT means that the packet had a
send-timeout indication. In this case, the transaction ID will be set to the TID of the original request.
AUTHOR
Hal Rosenstock <halr@voltaire.com>
OpenIB May 17, 2007 UMAD_STATUS(3)
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UMAD_SET_GRH(3) OpenIB Programmer's Manual UMAD_SET_GRH(3)NAME
umad_set_grh - set GRH fields within umad buffer using host ordering
SYNOPSIS
#include <infiniband/umad.h>
int umad_set_grh(void *umad, void *mad_addr);
DESCRIPTION
umad_set_grh() 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 host 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() returns 0 on success, and a negative value on errors. Currently, there are no errors indicated.
SEE ALSO umad_set_grh_net(3)AUTHOR
Hal Rosenstock <halr@voltaire.com>
OpenIB May 24, 2007 UMAD_SET_GRH(3)
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