Hi All. I've been doing some home work reading the docs and some doubts have raised. For reference, my environment is Ubuntu 20.04 kernel 5.4.0-66 tc utility, iproute2-ss200127. 1) https://xdp-project.net/areas/cpumap.html#cpumap--Create-script-MQ-HTB-silo-setup says that: "XPS (Transmit Packet Steering) will take precedence over any changes to skb->queue_mapping. You need to disable *XDP* via mask=00 in files /sys/class/net/DEV/queues/tx-*/xps_cpus" Shouldn't it say I need to disable *XPS* (not XDP) using mask=00?? 2) Taking tc_mq_htb_setup_example.sh as reference, how to enable XDP? Since I have to disable XPS, I assume I have to enable something in replacement, right? How to set that CPU-0 will deal with mq queue 7FFF:1, CPU-1 will deal with 7FFF:2, and so on? 3) Is XDP available in kernel 5.4.0 ? 4) Is XPS a suitable "substitute" for XDP ? Thank you for your time. Regards Ethy
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