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Is this a real user scenario you have or more of >>> an attempt to "maximize flexibility"? >> >> I don't believe there's a specific real-world scenario. It's really >> about maximizing flexibility. Essentially, if a user sets things up in a >> less-than-optimal way, the hardware can ensure that traffic is >> classified and managed properly. > > I see. If you could turn it off and leave it out, at least until clear > user appears that'd be great. Reclassifying packets on Tx slightly goes > against the netdev recommendation to limit any packet parsing and > interpretation on Tx. The hardware enforces a match between the packet’s priority and the scheduling queue’s configured priority. If they match, the packet is transmitted without further processing. If not, the hardware moves the Tx queue to the right scheduling queue to ensure proper traffic class separation. This check is always active and cannot currently be disabled. Even when the queue is configured with the correct priority, the hardware still verifies the match before sending.