Subject: Re: [PATCH net-next v4] net: virtio_net: notifications coalescing support

From: Jakub Kicinski <[email-masked]>
Date: Tue, 19 Jul 2022 17:26:52 -0700

On Mon, 18 Jul 2022 12:11:02 +0300 Alvaro Karsz wrote:
> New VirtIO network feature: VIRTIO_NET_F_NOTF_COAL.
> 
> Control a Virtio network device notifications coalescing parameters
> using the control virtqueue.
> 
> A device that supports this fetature can receive
> VIRTIO_NET_CTRL_NOTF_COAL control commands.
> 
> - VIRTIO_NET_CTRL_NOTF_COAL_TX_SET:
>   Ask the network device to change the following parameters:
>   - tx_usecs: Maximum number of usecs to delay a TX notification.
>   - tx_max_packets: Maximum number of packets to send before a
>     TX notification.
> 
> - VIRTIO_NET_CTRL_NOTF_COAL_RX_SET:
>   Ask the network device to change the following parameters:
>   - rx_usecs: Maximum number of usecs to delay a RX notification.
>   - rx_max_packets: Maximum number of packets to receive before a
>     RX notification.
> 
> VirtIO spec. patch:
> https://lists.oasis-open.org/archives/virtio-comment/202206/msg00100.html
> 
> Signed-off-by: Alvaro Karsz <[email-masked]>

Waiting a bit longer for Michael's ack, so in case other netdev
maintainer takes this:

Reviewed-by: Jakub Kicinski <[email-masked]>