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Update README: Add explicit cmdline to disable XPS #6

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Oct 14, 2021
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Update README: Add explicit cmdline to disable XPS #6

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5 changes: 5 additions & 0 deletions README.org
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Expand Up @@ -29,6 +29,11 @@ The basic components (in TC MQ-setup [[file:bin/tc_mq_htb_setup_example.sh][exam
For this project to work disable XPS (Transmit Packet Steering). A script for
configuring and disabling XPS is provided here: [[file:bin/xps_setup.sh]].

Script command line to disable XPS:
#+begin_src sh
sudo ./bin/xps_setup.sh --dev DEVICE --default --disable
#+end_src

The reason is that XPS (Transmit Packet Steering) takes precedence over setting
=skb->queue_mapping= used by TC BPF-prog. XPS is configured per DEVICE via
=/sys/class/net/DEVICE/queues/tx-*/xps_cpus= via a CPU hex mask. To disable set
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