Re: [PATCH net-next 2/2] net: stmmac: add tc flower filter for EtherType matching

Hi BL,

On Thu Dec 09 2021, Ong Boon Leong wrote:

This patch adds basic support for EtherType RX frame steering for
LLDP and PTP using the hardware offload capabilities.

Maybe add an example here for users?

|tc filter add dev eno1 parent ffff: protocol 0x88f7 flower hw_tc 4
|tc filter add dev eno1 parent ffff: protocol 0x88cc flower hw_tc 4

Signed-off-by: Ong Boon Leong <redacted>

Something is not quite correct. The use of the etype variable generates
new warnings. For instance:

|drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c:768:25: warning: restricted __be16 degrades to integer
|drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c:768:25: warning: restricted __be16 degrades to integer
|drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c:817:22: warning: restricted __be16 degrades to integer
|drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c:817:22: warning: restricted __be16 degrades to integer

However, the steering works as expected. Thanks!

Thanks,
Kurt