Re: [PATCH net-next v2] virtio-net: xsk: Support wakeup on RX side

From: Bui Quang Minh

Date: Wed Mar 04 2026 - 11:17:02 EST


On 3/4/26 14:41, Jason Xing wrote:
On Tue, Mar 3, 2026 at 1:03 AM Bui Quang Minh <minhquangbui99@xxxxxxxxx> wrote:
When XDP_USE_NEED_WAKEUP is used and the fill ring is empty so no buffer
is allocated on RX side, allow RX NAPI to be descheduled. This avoids
wasting CPU cycles on polling. Users will be notified and they need to
make a wakeup call after refilling the ring.

Signed-off-by: Bui Quang Minh <minhquangbui99@xxxxxxxxx>
Thanks for handling that problem. Please carry my tag in the next version:

Reviewed-by: Jason Xing <kerneljasonxing@xxxxxxxxx>

You seem to have forgotten to add Xuan Zhuo's tag...

This version contains a bug fix which is a non-trivial change so I think it might not be the same as the version that he approved of.

Thanks,
Quang Minh.