diff options
| author | Linus Walleij <[email protected]> | 2023-12-09 23:37:35 +0100 |
|---|---|---|
| committer | Paolo Abeni <[email protected]> | 2023-12-12 14:17:06 +0100 |
| commit | d577ca429af36a3aea38d53d11be56dff015dfc9 (patch) | |
| tree | 75116060c7610463140e11cb94df65e0a67f9ced /tools/testing/selftests/bpf/progs/test_autoload.c | |
| parent | 389119c842187e2425d8e0354aabe5c3383c5020 (diff) | |
net: dsa: realtek: Rewrite RTL8366RB MTU handling
The MTU callbacks are in layer 1 size, so for example 1500
bytes is a normal setting. Cache this size, and only add
the layer 2 framing right before choosing the setting. On
the CPU port this will however include the DSA tag since
this is transmitted from the parent ethernet interface!
Add the layer 2 overhead such as ethernet and VLAN framing
and FCS before selecting the size in the register.
This will make the code easier to understand.
The rtl8366rb_max_mtu() callback returns a bogus MTU
just subtracting the CPU tag, which is the only thing
we should NOT subtract. Return the correct layer 1
max MTU after removing headers and checksum.
Signed-off-by: Linus Walleij <[email protected]>
Reviewed-by: Alvin Šipraga <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_autoload.c')
0 files changed, 0 insertions, 0 deletions