Comment 24 for bug 1832641

BTW, on latest 4.4.0-150-generic ubuntu kernel, both adaptive-rx and adaptive-tx were not supported.

# uname -a
Linux 2p2699v4-217 4.4.0-150-generic #176-Ubuntu SMP Wed May 29 18:56:26 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

# ethtool -C enp129s0 adaptive-rx on adaptive-tx on

# ethtool -c enp129s0
Coalesce parameters for enp129s0:
Adaptive RX: off TX: off
stats-block-usecs: 0
sample-interval: 0
pkt-rate-low: 0
pkt-rate-high: 0

rx-usecs: 16
rx-frames: 32
rx-usecs-irq: 0
rx-frames-irq: 0

tx-usecs: 16
tx-frames: 32
tx-usecs-irq: 0
tx-frames-irq: 0

rx-usecs-low: 0
rx-frame-low: 0
tx-usecs-low: 0
tx-frame-low: 0

rx-usecs-high: 0
rx-frame-high: 0
tx-usecs-high: 0
tx-frame-high: 0