Hi, I'm trying to use u32 filter to filter specific fields of packets by HW *only* but I'm having a hard time in trying to run tc to configure it. I implemented a dummy .ndo_setup_tc callback which always returns success and I set NETIF_F_HW_TC field in hw_features. Then I run tc, like this:
# tc filter add dev eth0 u32 skip_sw sample u32 20 ffff at 0 At this stage I'm not really caring about the packet content (the "20 ffff at 0"), I just want to see the configuration reaching my driver but I'm getting a "RTNETLINK answers: Operation not supported" error. Can you tell me what I'm I doing wrong? Thanks and Best Regards, Jose Miguel Abreu