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Date:   Tue, 11 Aug 2020 11:26:20 +0000
From:   Eli Cohen <elic@...dia.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>
CC:     "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "virtualization@...ts.linux-foundation.org" 
        <virtualization@...ts.linux-foundation.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "eli@...lanox.com" <eli@...lanox.com>,
        "lulu@...hat.com" <lulu@...hat.com>,
        Majd Dibbiny <majd@...dia.com>,
        "Maor Dickman" <maord@...dia.com>,
        Shahaf Shuler <shahafs@...lanox.com>
Subject: VDPA Debug/Statistics 

Hi All

Currently, the only statistics we get for a VDPA instance comes from the virtio_net device instance. Since VDPA involves hardware acceleration, there can be quite a lot of information that can be fetched from the underlying device. Currently there is no generic method to fetch this information.

One way of doing this can be to create a the host, a net device for each VDPA instance, and use it to get this information or do some configuration. Ethtool can be used in such a case

I would like to hear what you think about this or maybe you have some other ideas to address this topic.

Thanks,
Eli

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