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| author | Alvin Šipraga <alsi@bang-olufsen.dk> | 2021-10-18 12:38:00 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-10-18 16:02:56 +0300 |
| commit | 1521d5adfc2b557e15f97283c8b7ad688c3ebc40 (patch) | |
| tree | d5da3786565312e7bcfcca886fbbf0987a14aad3 /net/dsa/Kconfig | |
| parent | 2e405875f39ff24aa88a21f90f63e5e18b344e8c (diff) | |
| download | linux-1521d5adfc2b557e15f97283c8b7ad688c3ebc40.tar.xz | |
net: dsa: tag_rtl8_4: add realtek 8 byte protocol 4 tag
This commit implements a basic version of the 8 byte tag protocol used
in the Realtek RTL8365MB-VC unmanaged switch, which carries with it a
protocol version of 0x04.
The implementation itself only handles the parsing of the EtherType
value and Realtek protocol version, together with the source or
destination port fields. The rest is left unimplemented for now.
The tag format is described in a confidential document provided to my
company by Realtek Semiconductor Corp. Permission has been granted by
the vendor to publish this driver based on that material, together with
an extract from the document describing the tag format and its fields.
It is hoped that this will help future implementors who do not have
access to the material but who wish to extend the functionality of
drivers for chips which use this protocol.
In addition, two possible values of the REASON field are specified,
based on experiments on my end. Realtek does not specify what value this
field can take.
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa/Kconfig')
| -rw-r--r-- | net/dsa/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig index 3a09784dae63..8cb87b5067ee 100644 --- a/net/dsa/Kconfig +++ b/net/dsa/Kconfig @@ -126,6 +126,12 @@ config NET_DSA_TAG_RTL4_A Realtek switches with 4 byte protocol A tags, sich as found in the Realtek RTL8366RB. +config NET_DSA_TAG_RTL8_4 + tristate "Tag driver for Realtek 8 byte protocol 4 tags" + help + Say Y or M if you want to enable support for tagging frames for Realtek + switches with 8 byte protocol 4 tags, such as the Realtek RTL8365MB-VC. + config NET_DSA_TAG_LAN9303 tristate "Tag driver for SMSC/Microchip LAN9303 family of switches" help |