установить поля GRH в буфере umad, используя порядок хоста (set GRH fields within umad buffer using host ordering)
Имя (Name)
umad_set_grh - set GRH fields within umad buffer using host
ordering
Синопсис (Synopsis)
#include <infiniband/umad.h>
int umad_set_grh(void *umad, void *mad_addr);
Описание (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;
Возвращаемое значение (Return value)
umad_set_grh() returns 0 on success, and a negative value on
errors. Currently, there are no errors indicated.
Смотри также (See also)
umad_set_grh_net(3)
