Re: [virtio-comment] [PATCH] virtio-net: support per-queue coalescing moderation

[Alvaro Karsz <alvaro.karsz@solid-run.com>]

Maybe we should do something more future friendly.
We may want to add more coalescing related features in the future.
* Maybe max/min sets?
* Maybe to offload the adaptive algo to the DPU?

It will require more feature bits..

We could rename this new feature from VIRTIO_NET_F_PERQUEUE_NOTF_COAL
to something like VIRTIO_NET_F_ADVANCED_NOTF_COAL, and introduce a new
bitmask in the virto_net_config.

We can implement just one bit at first.
BIT 0 - device supports per queue coalescing sets

Then, we could add more features in the future without having to use
more feature bits.

Every device that offers VIRTIO_NET_F_ADVANCED_NOTF_COAL should
maintain a valid bitmask.