Re: [PATCH net-next v8 2/3] net: implement threaded-able napi poll loop support

On Mon, 25 Jan 2021 17:11:08 -0800 Wei Wang wrote:

This patch allows running each napi poll loop inside its own
kernel thread.
The kthread is created during netif_napi_add() if dev->threaded
is set. And threaded mode is enabled in napi_enable(). We will
provide a way to set dev->threaded and enable threaded mode
without a device up/down in the following patch.

Once that threaded mode is enabled and the kthread is
started, napi_schedule() will wake-up such thread instead
of scheduling the softirq.

The threaded poll loop behaves quite likely the net_rx_action,
but it does not have to manipulate local irqs and uses
an explicit scheduling point based on netdev_budget.

Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Co-developed-by: Hannes Frederic Sowa <redacted>
Signed-off-by: Hannes Frederic Sowa <redacted>
Co-developed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Wei Wang <redacted>

include/linux/netdevice.h:2150: warning: Function parameter or member 'threaded' not described in 'net_device'


scripts/kernel-doc -none $files

is your friend - W=1 does not check headers.