1IBV_QUERY_RT_VALUES_EX(3)Libibverbs Programmer's ManualIBV_QUERY_RT_VALUES_EX(3)
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NAME

6       ibv_query_rt_values_ex - query an RDMA device for some real time values
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SYNOPSIS

9       #include <infiniband/verbs.h>
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11       int ibv_query_rt_values_ex(struct ibv_context *context,
12                                  struct ibv_values_ex *values);
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DESCRIPTION

15       ibv_query_rt_values_ex()  returns  certain real time values of a device
16       context.  The argument attr  is  a  pointer  to  an  ibv_device_attr_ex
17       struct, as defined in <infiniband/verbs.h>.
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19       struct ibv_values_ex {
20               uint32_t             comp_mask;    /* Compatibility mask that defines the query/queried fields [in/out] */
21               struct timespec      raw_clock;    /* HW raw clock */
22       };
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24       enum ibv_values_mask {
25               IBV_VALUES_MASK_RAW_CLOCK = 1 << 0, /* HW raw clock */
26       };
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RETURN VALUE

30       ibv_query_rt_values_ex() returns 0 on success, or the value of errno on
31       failure (which indicates the failure reason).
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NOTES

34       This extension verb only calls the provider, the provider has to  query
35       this value somehow and mark the queried values in the comp_mask field.
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SEE ALSO

38       ibv_query_device(3),       ibv_open_device(3),       ibv_query_port(3),
39       ibv_query_pkey(3), ibv_query_gid(3)
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AUTHORS

42       Matan Barak <matanb@mellanox.com>
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44       Yishai Hadas <yishaih@mellanox.com>
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48libibverbs                         2016-2-20         IBV_QUERY_RT_VALUES_EX(3)