Using ebtables to replace the TC mechanism of linux kernel

Recently I'm taking a survey on Linux packet QoS mechanisms,  using some
parameters such as packet type, MAC, IP addr...etc, to replace original
Linux TC. However, I found the Linux QoS mechanism didn't provide me a good
solution.

Here are the requirements: on the target machine, the packets from input
should be parsed to be examined their layer 2 (this is why I need ebtableds)
and layer 3 header, checking if these incoming packets match the rules I
defined. These rules decide which kinds of packets should be put to
different priority queues. What I mentioned here "different priority queues"
are quite different from the queues defined in Linux kernel. They are HW
queues. Don't worry about the HW queues, they are implemented in the HW
driver, so all I need is to classify all the packets incoming, dispatch them
to their proper queues before they're forwarding (maybe encapsulate one more
tag to specify their priority).

My problem is, I traced both userspace program and kernel space source code,
and it seemed there's no functions like what classification do. What it was
done is by parse, compare, and match to filter the packets. If I would like
to add the feature as I just mentioned, how or where should I start? The
ebtables seems to have less direct connection with Linux RX and TX. If
there's anyone who can give me some clue or advice, I will be very
appreciated.

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