tuned.plugins.plugin_net: unknown coalesce parameter(s): {'CQE mode RX'} when trying to set coalesce options on NIC

[rtzoeller]

I am trying to configure some NIC properties which I would normally set using ethtool. In particular, I have the following set in a TuneD profile:

[net]
coalesce=rx-usecs 0 tx-usecs 0

Activating the profile results in the following lines being added to /var/log/tuned/tuned.log, and the coalescing options not being modified for the interfaces.

2025-01-13 15:03:02,885 ERROR    tuned.plugins.plugin_net: unknown coalesce parameter(s): {'CQE mode RX'}
2025-01-13 15:03:02,887 ERROR    tuned.plugins.plugin_net: unknown coalesce parameter(s): {'CQE mode RX'}
2025-01-13 15:03:02,890 ERROR    tuned.plugins.plugin_net: unknown coalesce parameter(s): {'CQE mode RX'}

The output of ethtool -c enp1s0 is

Coalesce parameters for enp1s0:
Adaptive RX: n/a  TX: n/a
stats-block-usecs:	n/a
sample-interval:	n/a
pkt-rate-low:		n/a
pkt-rate-high:		n/a

rx-usecs:	3
rx-frames:	n/a
rx-usecs-irq:	n/a
rx-frames-irq:	n/a

tx-usecs:	3
tx-frames:	n/a
tx-usecs-irq:	n/a
tx-frames-irq:	n/a

rx-usecs-low:	n/a
rx-frame-low:	n/a
tx-usecs-low:	n/a
tx-frame-low:	n/a

rx-usecs-high:	n/a
rx-frame-high:	n/a
tx-usecs-high:	n/a
tx-frame-high:	n/a

CQE mode RX: n/a  TX: n/a

[rtzoeller]

I suspect it has been broken since 2021: https://git.kernel.org/pub/scm/network/ethtool/ethtool.git/commit/?id=ecfb7302cfe68354ce72762a5cd65e6497929949