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IB/core: Add timestamp_mask and hca_core_clock to query_device

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In order to expose timestamp we need to expose two new attributes in
query_device to be used for CQ completion time-stamping:

timestamp_mask - how many bits are valid in the timestamp, where timestamp
values could be 64bits the most.

hca_core_clock - timestamp is given in HW cycles, the frequency in KHZ units
of the HCA, necessary in order to convert cycles to seconds.

This is added both to ib_query_device and its respective uverbs counterpart.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Matan Barak
2015-06-11 16:35:24 +03:00
committed by Doug Ledford
parent 565197dd8f
commit 24306dc661
4 changed files with 20 additions and 0 deletions
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include/uapi/rdma/ib_user_verbs.h
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@@ -223,6 +223,8 @@ struct ib_uverbs_ex_query_device_resp {
__u32 comp_mask;
__u32 response_length;
struct ib_uverbs_odp_caps odp_caps;
__u64 timestamp_mask;
__u64 hca_core_clock; /* in KHZ */
};
struct ib_uverbs_query_port {