On 7/24/20 5:56 PM, Jakub Kicinski wrote:
On Fri, 24 Jul 2020 17:23:26 -0700 Shannon Nelson wrote:
Add the capability to split the Tx queues onto their own
interrupts with their own napi contexts. This gives the
opportunity for more direct control of Tx interrupt
handling, such as CPU affinity and interrupt coalescing,
useful for some traffic loads.
To enable, use the ethtool private flag:
ethtool --set-priv-flag enp20s0 split-q-intr on
To restore defaults
ethtool --set-priv-flag enp20s0 split-q-intr off
When enabled, the number of queues is cut in half in order
to reuse the interrupts that have already been allocated to
the device. When disabled, the queue count is restored.
Signed-off-by: Shannon Nelson <snel...@pensando.io>
Splitting queues into tx-only and rx-only is done like this:
ethtool -L enp20s0 rx N tx N combined 0
And then back to combined:
ethtool -L enp20s0 rx 0 tx 0 combined N
No need for a private flag here.
Sure, we can do it that way.
Thanks,
sln
