1521d5adfc
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>
5.4 KiB
SPDX-License-Identifier: GPL-2.0-only
menuconfig NET_DSA tristate "Distributed Switch Architecture" depends on BRIDGE || BRIDGE=n depends on HSR || HSR=n depends on INET && NETDEVICES select GRO_CELLS select NET_SWITCHDEV select PHYLINK select NET_DEVLINK imply NET_SELFTESTS help Say Y if you want to enable support for the hardware switches supported by the Distributed Switch Architecture.
if NET_DSA
Drivers must select the appropriate tagging format(s)
config NET_DSA_TAG_AR9331 tristate "Tag driver for Atheros AR9331 SoC with built-in switch" help Say Y or M if you want to enable support for tagging frames for the Atheros AR9331 SoC with built-in switch.
config NET_DSA_TAG_BRCM_COMMON tristate default n
config NET_DSA_TAG_BRCM tristate "Tag driver for Broadcom switches using in-frame headers" select NET_DSA_TAG_BRCM_COMMON help Say Y if you want to enable support for tagging frames for the Broadcom switches which place the tag after the MAC source address.
config NET_DSA_TAG_BRCM_LEGACY tristate "Tag driver for Broadcom legacy switches using in-frame headers" select NET_DSA_TAG_BRCM_COMMON help Say Y if you want to enable support for tagging frames for the Broadcom legacy switches which place the tag after the MAC source address.
config NET_DSA_TAG_BRCM_PREPEND tristate "Tag driver for Broadcom switches using prepended headers" select NET_DSA_TAG_BRCM_COMMON help Say Y if you want to enable support for tagging frames for the Broadcom switches which places the tag before the Ethernet header (prepended).
config NET_DSA_TAG_HELLCREEK tristate "Tag driver for Hirschmann Hellcreek TSN switches" help Say Y or M if you want to enable support for tagging frames for the Hirschmann Hellcreek TSN switches.
config NET_DSA_TAG_GSWIP tristate "Tag driver for Lantiq / Intel GSWIP switches" help Say Y or M if you want to enable support for tagging frames for the Lantiq / Intel GSWIP switches.
config NET_DSA_TAG_DSA_COMMON tristate
config NET_DSA_TAG_DSA tristate "Tag driver for Marvell switches using DSA headers" select NET_DSA_TAG_DSA_COMMON help Say Y or M if you want to enable support for tagging frames for the Marvell switches which use DSA headers.
config NET_DSA_TAG_EDSA tristate "Tag driver for Marvell switches using EtherType DSA headers" select NET_DSA_TAG_DSA_COMMON help Say Y or M if you want to enable support for tagging frames for the Marvell switches which use EtherType DSA headers.
config NET_DSA_TAG_MTK tristate "Tag driver for Mediatek switches" help Say Y or M if you want to enable support for tagging frames for Mediatek switches.
config NET_DSA_TAG_KSZ tristate "Tag driver for Microchip 8795/9477/9893 families of switches" help Say Y if you want to enable support for tagging frames for the Microchip 8795/9477/9893 families of switches.
config NET_DSA_TAG_OCELOT tristate "Tag driver for Ocelot family of switches, using NPI port" select PACKING help Say Y or M if you want to enable NPI tagging for the Ocelot switches (VSC7511, VSC7512, VSC7513, VSC7514, VSC9953, VSC9959). In this mode, the frames over the Ethernet CPU port are prepended with a hardware-defined injection/extraction frame header. Flow control (PAUSE frames) over the CPU port is not supported when operating in this mode.
config NET_DSA_TAG_OCELOT_8021Q tristate "Tag driver for Ocelot family of switches, using VLAN" help Say Y or M if you want to enable support for tagging frames with a custom VLAN-based header. Frames that require timestamping, such as PTP, are not delivered over Ethernet but over register-based MMIO. Flow control over the CPU port is functional in this mode. When using this mode, less TCAM resources (VCAP IS1, IS2, ES0) are available for use with tc-flower.
config NET_DSA_TAG_QCA tristate "Tag driver for Qualcomm Atheros QCA8K switches" help Say Y or M if you want to enable support for tagging frames for the Qualcomm Atheros QCA8K switches.
config NET_DSA_TAG_RTL4_A tristate "Tag driver for Realtek 4 byte protocol A tags" help Say Y or M if you want to enable support for tagging frames for the 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 Say Y or M if you want to enable support for tagging frames for the SMSC/Microchip LAN9303 family of switches.
config NET_DSA_TAG_SJA1105 tristate "Tag driver for NXP SJA1105 switches" select PACKING help Say Y or M if you want to enable support for tagging frames with the NXP SJA1105 switch family. Both the native tagging protocol (which is only for link-local traffic) as well as non-native tagging (based on a custom 802.1Q VLAN header) are available.
config NET_DSA_TAG_TRAILER tristate "Tag driver for switches using a trailer tag" help Say Y or M if you want to enable support for tagging frames at with a trailed. e.g. Marvell 88E6060.
config NET_DSA_TAG_XRS700X tristate "Tag driver for XRS700x switches" help Say Y or M if you want to enable support for tagging frames for Arrow SpeedChips XRS700x switches that use a single byte tag trailer.
endif