kernel.git/drivers/net/dsa/Kconfig, branch linux-6.18.y

net: dsa: lantiq_gswip: move to dedicated folder

2025-09-03T00:45:42Z

Move the lantiq_gswip driver to its own folder and update MAINTAINERS file accordingly. This is done ahead of extending the driver to support the MaxLinear GSW1xx series of standalone switch ICs, which includes adding a bunch of files. Signed-off-by: Daniel Golle Reviewed-by: Hauke Mehrtens Link: https://patch.msgid.link/a5923dee9a174501b284dc473bdec9dd89c68de1.1756520811.git.daniel@makrotopia.org Signed-off-by: Jakub Kicinski

net: dsa: ks8995: Add basic switch set-up

2025-08-19T00:26:09Z

We start to extend the KS8995 driver by simply registering it as a DSA device and implementing a few switch callbacks for STP set-up and such to begin with. No special tags or other advanced stuff: we use DSA_TAG_NONE and rely on the default set-up in the switch with the special DSA tags turned off. This makes the switch wire up properly to all its PHY's and simple bridge traffic works properly. After this the bridge DT bindings are respected, ports and their PHYs get connected to the switch and react appropriately through the phylib when cables are plugged in etc. Tested like this in a hacky OpenWrt image: Bring up conduit interface manually: ixp4xx_eth c8009000.ethernet eth0: eth0: link up, speed 100 Mb/s, full duplex spi-ks8995 spi0.0: enable port 0 spi-ks8995 spi0.0: set KS8995_REG_PC2 for port 0 to 06 spi-ks8995 spi0.0 lan1: configuring for phy/mii link mode spi-ks8995 spi0.0 lan1: Link is Up - 100Mbps/Full - flow control rx/tx PING 169.254.1.1 (169.254.1.1): 56 data bytes 64 bytes from 169.254.1.1: seq=0 ttl=64 time=1.629 ms 64 bytes from 169.254.1.1: seq=1 ttl=64 time=0.951 ms I also tested SSH from the device to the host and it works fine. It also works fine to ping the device from the host and to SSH into the device from the host. This brings the ks8995 driver to a reasonable state where it can be used from the current device tree bindings and the existing device trees in the kernel. Signed-off-by: Linus Walleij Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20250813-ks8995-to-dsa-v1-4-75c359ede3a5@linaro.org Signed-off-by: Jakub Kicinski

net: dsa: Move KS8995 to the DSA subsystem

2025-08-19T00:26:09Z

By reading the datasheets for the KS8995 it is obvious that this is a 100 Mbit DSA switch. Let us start the refactoring by moving it to the DSA subsystem to preserve development history. Verified that the chip still probes the same after this patch provided CONFIG_HAVE_NET_DSA, CONFIG_NET_DSA and CONFIG_DSA_KS8995 are selected. Signed-off-by: Linus Walleij Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20250813-ks8995-to-dsa-v1-1-75c359ede3a5@linaro.org Signed-off-by: Jakub Kicinski

net: dsa: rzn1_a5psw: add COMPILE_TEST

2025-07-10T13:41:01Z

There's no architecture specific requirement for it to compile. Allows the bots to test compilation properly. Signed-off-by: Rosen Penev Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20250708014144.2514-2-rosenp@gmail.com Signed-off-by: Paolo Abeni

dsa: mt7530: Utilize REGMAP_IRQ for interrupt handling

2025-03-05T01:14:23Z

Replace the custom IRQ chip handler and mask/unmask functions with REGMAP_IRQ. This significantly simplifies the code and allows for the removal of almost all interrupt-related functions from mt7530.c. Tested on MT7988A built-in switch (MMIO) as well as MT7531AE IC (MDIO). Signed-off-by: Daniel Golle Acked-by: Chester A. Unal Link: https://patch.msgid.link/221013c3530b61504599e285c341a993f6188f00.1740792674.git.daniel@makrotopia.org Signed-off-by: Jakub Kicinski

net: dsa: vsc73xx: Implement the tag_8021q VLAN operations

2024-07-15T13:55:15Z

This patch is a simple implementation of 802.1q tagging in the vsc73xx driver. Currently, devices with DSA_TAG_PROTO_NONE are not functional. The VSC73XX family doesn't provide any tag support for external Ethernet ports. The only option available is VLAN-based tagging, which requires constant hardware VLAN filtering. While the VSC73XX family supports provider bridging, it only supports QinQ without full implementation of 802.1AD. This means it only allows the doubled 0x8100 TPID. In the simple port mode, QinQ is enabled to preserve forwarding of VLAN-tagged frames. Signed-off-by: Pawel Dembicki Reviewed-by: Vladimir Oltean Link: https://patch.msgid.link/20240713211620.1125910-9-paweldembicki@gmail.com Signed-off-by: Jakub Kicinski

net: dsa: lan9303: imply SMSC_PHY

2024-05-30T00:11:45Z

Both LAN9303 and LAN9354 have internal PHYs on both external ports. Therefore a configuration without SMSC PHY support is non-practical at least and leads to: LAN9303_MDIO 8000f00.mdio:00: Found LAN9303 rev. 1 mdio_bus 8000f00.mdio:00: deferred probe pending: (reason unknown) Signed-off-by: Alexander Sverdlin Reviewed-by: Andrew Lunn Link: https://lore.kernel.org/r/20240528073147.3604083-1-alexander.sverdlin@siemens.com Signed-off-by: Jakub Kicinski

net: dsa: mt7530: select MEDIATEK_GE_PHY for NET_DSA_MT7530_MDIO

2024-01-27T04:31:52Z

Quoting from commit 4223f8651287 ("net: dsa: mt7530: make NET_DSA_MT7530 select MEDIATEK_GE_PHY"): Make MediaTek MT753x DSA driver enable MediaTek Gigabit PHYs driver to properly control MT7530 and MT7531 switch PHYs. A noticeable change is that the behaviour of switchport interfaces going up-down-up-down is no longer there. Now, the switch can be used without the PHYs but, at the moment, every hardware design out there that I have seen uses them. For that, it would make the most sense to force the selection of MEDIATEK_GE_PHY for the MDIO interface which currently controls the MT7530 and MT7531 switches. Signed-off-by: Arınç ÜNAL Reviewed-by: Vladimir Oltean Link: https://lore.kernel.org/r/20240122053451.8004-1-arinc.unal@arinc9.com Signed-off-by: Jakub Kicinski

net: dsa: mt7530: improve and relax PHY driver dependency

2023-08-09T10:22:55Z

Different MT7530 variants require different PHY drivers. Use 'imply' instead of 'select' to relax the dependency on the PHY driver, and choose the appropriate driver. Signed-off-by: Daniel Golle Reviewed-by: Simon Horman Reviewed-by: Vladimir Oltean Signed-off-by: David S. Miller

net: dsa: mt7530: introduce driver for MT7988 built-in switch

2023-04-03T09:13:01Z

Add driver for the built-in Gigabit Ethernet switch which can be found in the MediaTek MT7988 SoC. The switch shares most of its design with MT7530 and MT7531, but has it's registers mapped into the SoCs register space rather than being connected externally or internally via MDIO. Introduce a new platform driver to support that. Signed-off-by: Daniel Golle Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller