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(parent: bf81c51) | patch
kernel: add DSA driver for MaxLinear MxL862xx switches 22612/head
authorDaniel Golle <daniel@makrotopia.org>
Thu, 26 Mar 2026 04:00:28 +0000 (04:00 +0000)
committerDaniel Golle <daniel@makrotopia.org>
Fri, 27 Mar 2026 15:49:23 +0000 (15:49 +0000)
commit27568d21d3230befc543774161e0ec5806b4aeb6
tree49a88fb15848cde4461a2d0c60598c583d1c13dctree | snapshot
parentbf81c51b51862b3b7195baaa3662eac57321435bcommit | diff
kernel: add DSA driver for MaxLinear MxL862xx switches

Backport upstream driver and apply pending downstream patches to
support using the MaxLinear MxL86252 and MxL86282 switches.

The driver supports a native proprietary 8-byte DSA special tag format
(mxl862xx) as well as using an 802.1Q-based DSA tag (mxl862xx-8021q).

All basic bridge, VLAN and LAG operations are supported. A single port
can be used as mirror port. Hardware counters are made available as
ethtool stats or directly serve as interface counters (bytes,
packets).

The switch runs a complex ZephyrOS-based firmware on an integrated
ARC microcontroller, the driver uses the firmware management API over
MDIO to interact with the switch hardware.

Note that the firmware needs to be rather recent (WSP 1.0.78 or later)
to work well with this driver. It can be updated at runtime using devlink.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
48 files changed:
package/kernel/linux/modules/netdevices.mk diff | blob | blame | history
target/linux/generic/backport-6.12/760-v6.18-net-phy-introduce-phy_id_compare_model-PHY-ID-helper.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/761-v6.19-net-phy-mxl-gpy-add-support-for-mxl86252-and-mxl86282.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/762-v7.0-net-dsa-add-tag-format-for-MxL862xx-switches.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/763-v7.0-net-mdio-add-unlocked-mdiodev-C45-bus-accessors.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/764-v7.0-net-dsa-add-basic-initial-driver-for-MxL862xx-switch.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/765-v7.0-net-dsa-mxl862xx-rename-MDIO-op-arguments.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/766-v7.0-net-dsa-mxl862xx-don-t-set-user_mii_bus.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/767-v7.0-net-dsa-MxL862xx-don-t-force-enable-MAXLINEAR_GPHY.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/768-v7.1-net-dsa-MxL862xx-don-t-force-enable-MAXLINEAR_GPHY.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/769-v7.1-net-dsa-mxl862xx-add-CRC-for-MDIO-communication.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/770-v7.1-net-dsa-mxl862xx-use-RST_DATA-to-skip-writing-zero-w.patch [new file with mode: 0644] blob
target/linux/generic/backport-6.12/782-04-v6.16-net-phy-introduce-genphy_match_phy_device.patch diff | blob | blame | history
target/linux/generic/backport-6.12/783-01-v6.18-net-dsa-Move-KS8995-to-the-DSA-subsystem.patch diff | blob | blame | history
target/linux/generic/backport-6.12/783-04-v6.18-net-dsa-ks8995-Add-basic-switch-set-up.patch diff | blob | blame | history
target/linux/generic/backport-6.12/786-01-v6.18-net-phy-introduce-phy_id_compare_vendor-PHY-ID-helpe.patch diff | blob | blame | history
target/linux/generic/pending-6.12/750-net-sfp-add-quirk-for-QINIYEK-BJ-SFP-10G-T-copper-SF.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-01-net-dsa-move-dsa_bridge_ports-helper-to-dsa.h.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-02-net-dsa-add-bridge-member-iteration-macro.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-03-dsa-tag_mxl862xx-set-dsa_default_offload_fwd_mark.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-04-net-dsa-mxl862xx-implement-bridge-offloading.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-05-net-dsa-mxl862xx-implement-VLAN-functionality.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-06-net-dsa-mxl862xx-add-ethtool-statistics-support.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-07-net-dsa-mxl862xx-implement-.get_stats64.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-08-net-dsa-mxl862xx-store-firmware-version-for-feature-.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-09-net-dsa-mxl862xx-move-phylink-stubs-to-mxl862xx-phyl.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-10-net-dsa-mxl862xx-move-API-macros-to-mxl862xx-host.h.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-11-net-dsa-mxl862xx-add-support-for-SerDes-ports.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-12-net-dsa-mxl862xx-add-SerDes-ethtool-statistics.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-13-net-dsa-mxl862xx-add-SerDes-self-test-via-PRBS-and-B.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-14-net-dsa-mxl862xx-trap-link-local-frames-to-the-CPU-p.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-15-net-dsa-mxl862xx-warn-about-old-firmware-default-PCE.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-16-net-dsa-add-802.1Q-VLAN-based-tag-driver-for-MxL862x.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-17-net-dsa-mxl862xx-add-link-aggregation-support.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-18-net-dsa-mxl862xx-add-support-for-mirror-port.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-19-net-dsa-wire-flash_update-devlink-callback-to-driver.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-20-net-dsa-mxl862xx-add-SMDIO-clause-22-register-access.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-21-net-dsa-mxl862xx-add-devlink-flash_update-and-info_g.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-22-net-dsa-mxl862xx-implement-port-MTU-configuration.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-23-net-dsa-mxl862xx-support-BR_HAIRPIN_MODE-bridge-flag.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-24-net-dsa-mxl862xx-support-BR_ISOLATED-bridge-flag.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-25-DO-NOT-SUBMIT-net-dsa-mxl862xx-re-introduce-PCE-work.patch [new file with mode: 0644] blob
target/linux/generic/pending-6.12/760-26-DO-NOT-SUBMIT-net-dsa-mxl862xx-legacy-SFP-API-fallba.patch [new file with mode: 0644] blob
target/linux/ipq40xx/patches-6.12/701-net-dsa-add-out-of-band-tagging-protocol.patch diff | blob | blame | history
target/linux/realtek/patches-6.12/700-dsa-mdio-increase-max-ports-for-rtl839x-rtl931x.patch diff | blob | blame | history
target/linux/realtek/patches-6.12/714-net-phy-sfp-add-support-for-SMBus.patch diff | blob | blame | history
target/linux/realtek/patches-6.12/718-net-dsa-add-support-for-rtl838x-switch.patch diff | blob | blame | history
target/linux/realtek/patches-6.12/721-net-dsa-add-support-for-tag-rtl-otto.patch diff | blob | blame | history
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