tree 982149ef0621c1a10812987958811cbcb3ba8354
parent aa85c2918a6c63887f492fe7a8a88ed8fbb933f2
author Michael Brown <mcb30@ipxe.org> 1675275572 +0000
committer Michael Brown <mcb30@ipxe.org> 1675278570 +0000

[realtek] Explicitly disable VLAN offload

Some cards seem to have the receive VLAN tag stripping feature enabled
by default, which causes received VLAN packets to be misinterpreted as
being received by the trunk device.

Fix by disabling VLAN tag stripping in the C+ Command Register.

Debugged-by: Xinming Lai <yiyihu@gmail.com>
Tested-by: Xinming Lai <yiyihu@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>