запросить устройство RDMA для некоторых значений в реальном времени (query an RDMA device for some real time values)
Имя (Name)
ibv_query_rt_values_ex - query an RDMA device for some real time
values
Синопсис (Synopsis)
#include <infiniband/verbs.h>
int ibv_query_rt_values_ex(struct ibv_context *context,
struct ibv_values_ex *values);
Описание (Description)
ibv_query_rt_values_ex() returns certain real time values of a
device context. The argument attr is a pointer to an
ibv_device_attr_ex struct, as defined in <infiniband/verbs.h>.
struct ibv_values_ex {
uint32_t comp_mask; /* Compatibility mask that defines the query/queried fields [in/out] */
struct timespec raw_clock; /* HW raw clock */
};
enum ibv_values_mask {
IBV_VALUES_MASK_RAW_CLOCK = 1 << 0, /* HW raw clock */
};
Возвращаемое значение (Return value)
ibv_query_rt_values_ex() returns 0 on success, or the value of
errno on failure (which indicates the failure reason).
Примечание (Note)
This extension verb only calls the provider, the provider has to
query this value somehow and mark the queried values in the
comp_mask field.
Смотри также (See also)
ibv_query_device(3), ibv_open_device(3), ibv_query_port(3),
ibv_query_pkey(3), ibv_query_gid(3)
