[dpdk-dev] [PATCH] net/virtio-user: add unsupported features mask

Maxime Coquelin maxime.coquelin at redhat.com
Tue Jun 26 10:08:21 CEST 2018



On 06/25/2018 03:10 PM, Marvin Liu wrote:
> This patch introduces unsupported features mask for virtio-user device.
> For virtio-user server mode, when reconnecting virtio-user will
> retrieve vhost devcie features as base and then unmask unsupported
s/devcie/device/
> features.

I am not sure to understand why you are doing it like this.

Shouldn't you just:
  1. Don't advertise features you don't want to support
  2. In server mode, save the negotiated features, and re-use it when
     reconnect happens?

Also, I find "unmask" a bit misleading, why not something like "unsupp"
or "unsupported"?

Thanks,
Maxime


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