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| author | Steen Hegelund <steen.hegelund@microchip.com> | 2021-06-11 14:54:51 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-12 13:08:57 -0700 |
| commit | a56c286865692ac12291afe4c66198915c6b08f9 (patch) | |
| tree | 3c6fb8048a41000cbfdbbdec110e7c815e7f1f2d /Documentation | |
| parent | 858252c9c3463abc3f7b13e42aae3b8845f0479d (diff) | |
| download | linux-a56c286865692ac12291afe4c66198915c6b08f9.tar.bz2 | |
net: phy: Add 25G BASE-R interface mode
Add 25gbase-r phy interface mode
Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: Bjarni Jonasson <bjarni.jonasson@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/phy.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/networking/phy.rst b/Documentation/networking/phy.rst index 3f05d50ecd6e..571ba08386e7 100644 --- a/Documentation/networking/phy.rst +++ b/Documentation/networking/phy.rst @@ -292,6 +292,12 @@ Some of the interface modes are described below: Note: due to legacy usage, some 10GBASE-R usage incorrectly makes use of this definition. +``PHY_INTERFACE_MODE_25GBASER`` + This is the IEEE 802.3 PCS Clause 107 defined 25GBASE-R protocol. + The PCS is identical to 10GBASE-R, i.e. 64B/66B encoded + running 2.5 as fast, giving a fixed bit rate of 25.78125 Gbaud. + Please refer to the IEEE standard for further information. + ``PHY_INTERFACE_MODE_100BASEX`` This defines IEEE 802.3 Clause 24. The link operates at a fixed data rate of 125Mpbs using a 4B/5B encoding scheme, resulting in an underlying |