[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: ?????? <yiyihu@gmail.com>
Tested-by: ?????? <yiyihu@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
2 files changed
tree: 3b2b583bc352398ae6e922b3d602e9bfdc3372bf
  1. .github/
  2. contrib/
  3. src/
  4. COPYING
  5. COPYING.GPLv2
  6. COPYING.UBDL
  7. README