IBV_QUER...ALUES_EX(3) Libibverbs Programmer's Manual IBV_QUER...ALUES_EX(3)
NAME
ibv_query_rt_values_ex - query an RDMA device for some real time values
SYNOPSIS
#include <infiniband/verbs.h>
int ibv_query_rt_values_ex(struct ibv_context *context,
struct ibv_values_ex *values);
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 */
};
RETURN VALUE
ibv_query_rt_values_ex() returns 0 on success, or the value of errno on
failure (which indicates the failure reason).
NOTES
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.
SEE ALSO
ibv_query_device(3), ibv_open_device(3), ibv_query_port(3),
ibv_query_pkey(3), ibv_query_gid(3)
AUTHORS
Matan Barak <
[email protected]>
Yishai Hadas <
[email protected]>
libibverbs 2016-2-20 IBV_QUER...ALUES_EX(3)