diff options
| author | Alvin Šipraga <alsi@bang-olufsen.dk> | 2021-10-18 11:38:00 +0200 |
|---|---|---|
| committer | Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-05-04 15:24:56 +0200 |
| commit | 50150e3274ba8e77c74895dc29ecb5398070af59 (patch) | |
| tree | 24df570e4d6489958b38578fa602905c7e9dbe25 /include | |
| parent | 37f2eaa0cc8fd2c81e8265403e65c69ac257ef91 (diff) | |
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>
(cherry picked from commit 1521d5adfc2b557e15f97283c8b7ad688c3ebc40)
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/dsa.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h index 4eb7f5beebc5..d96e2aa73eb3 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -51,6 +51,7 @@ struct phylink_link_state; #define DSA_TAG_PROTO_SEVILLE_VALUE 21 #define DSA_TAG_PROTO_BRCM_LEGACY_VALUE 22 #define DSA_TAG_PROTO_SJA1110_VALUE 23 +#define DSA_TAG_PROTO_RTL8_4_VALUE 24 enum dsa_tag_protocol { DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, @@ -77,6 +78,7 @@ enum dsa_tag_protocol { DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, DSA_TAG_PROTO_SJA1110 = DSA_TAG_PROTO_SJA1110_VALUE, + DSA_TAG_PROTO_RTL8_4 = DSA_TAG_PROTO_RTL8_4_VALUE, }; struct dsa_switch; |