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Date:   Tue, 19 Jul 2022 17:26:52 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Alvaro Karsz <alvaro.karsz@...id-run.com>
Cc:     netdev@...r.kernel.org, "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH net-next v4] net: virtio_net: notifications coalescing
 support

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 <alvaro.karsz@...id-run.com>

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

Reviewed-by: Jakub Kicinski <kuba@...nel.org>

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