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| author | David S. Miller <davem@davemloft.net> | 2020-05-21 17:18:00 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-21 17:18:00 -0700 |
| commit | 2a330b533462bea0967e723ff12787daa5a608f8 (patch) | |
| tree | ff7397ca188b6e6ffd74a1c272aaffcc3d09fa51 /Documentation | |
| parent | b0301a5a288d804374b194e755180967ff7a295b (diff) | |
| parent | 68ff5e14759e7ac1aac7bc75ac5b935e390fa2b3 (diff) | |
Merge branch 'provide-KAPI-for-SQI'
Oleksij Rempel says:
====================
provide KAPI for SQI
This patches are extending ethtool netlink interface to export Signal
Quality Index (SQI). SQI provided by 100Base-T1 PHYs and can be used for
cable diagnostic. Compared to a typical cable tests, this value can be
only used after link is established.
changes v3:
- rename __ethtool_get_sqi* to linkstate_get_sqi*. And move this
functions to the net/ethtool/linkstate.c
- protect linkstate_get_sqi* with locking
changes v2:
- use u32 instead of u8 for SQI
- add SQI_MAX field and callbacks
- some style fixes in the rst.
- do not convert index to shifted index.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/ethtool-netlink.rst | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst index eed46b6aa07d..7e651ea33eab 100644 --- a/Documentation/networking/ethtool-netlink.rst +++ b/Documentation/networking/ethtool-netlink.rst @@ -454,10 +454,12 @@ Request contents: Kernel response contents: - ==================================== ====== ========================== + ==================================== ====== ============================ ``ETHTOOL_A_LINKSTATE_HEADER`` nested reply header ``ETHTOOL_A_LINKSTATE_LINK`` bool link state (up/down) - ==================================== ====== ========================== + ``ETHTOOL_A_LINKSTATE_SQI`` u32 Current Signal Quality Index + ``ETHTOOL_A_LINKSTATE_SQI_MAX`` u32 Max support SQI value + ==================================== ====== ============================ For most NIC drivers, the value of ``ETHTOOL_A_LINKSTATE_LINK`` returns carrier flag provided by ``netif_carrier_ok()`` but there are drivers which |