net: dsa: netc: add FDB, STP, MTU, port setup and host flooding support

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Expand the NETC switch driver with several foundational features:
- FDB and MDB management
- STP state handling
- MTU configuration
- Port setup/teardown
- Host flooding support

At this stage, the driver operates only in standalone port mode. Each
port uses VLAN 0 as its PVID, meaning ingress frames are internally
assigned VID 0 regardless of whether they arrive tagged or untagged.
Note that this does not inject a VLAN 0 header into the frame, the VID
is used purely for subsequent VLAN processing within the switch.

Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260518082506.1318236-13-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Wei Fang 2026-05-18 16:25:03 +08:00 • committed by Paolo Abeni

parent bbe97e3472

commit 46d6407692

3 changed files with 663 additions and 0 deletions

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601

drivers/net/dsa/netc/netc_main.c

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37

drivers/net/dsa/netc/netc_switch.h

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25

drivers/net/dsa/netc/netc_switch_hw.h

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