[Intel-wired-lan] [PATCH net-next v1 1/9] ethtool: Add support for configuring frame preemption

Jakub Kicinski kuba at kernel.org
Thu Dec 3 01:53:47 UTC 2020


On Tue,  1 Dec 2020 20:53:17 -0800 Vinicius Costa Gomes wrote:
> Frame preemption (described in IEEE 802.3br-2016) defines the concept
> of preemptible and express queues. It allows traffic from express
> queues to "interrupt" traffic from preemptible queues, which are
> "resumed" after the express traffic has finished transmitting.
> 
> Frame preemption can only be used when both the local device and the
> link partner support it.
> 
> Only parameters for enabling/disabling frame preemption and
> configuring the minimum fragment size are included here. Expressing
> which queues are marked as preemptible is left to mqprio/taprio, as
> having that information there should be easier on the user.
> 
> Signed-off-by: Vinicius Costa Gomes <vinicius.gomes at intel.com>

CC: Michal


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