linux-kernel - Re: [PATCH net] virtio-net: reject small vring sizes

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Message-ID: <AM0PR04MB4723C6E99A217F51973710F5D49F9@AM0PR04MB4723.eurprd04.prod.outlook.com>
Date:   Sun, 16 Apr 2023 16:54:57 +0000
From:   Alvaro Karsz <alvaro.karsz@...id-run.com>
To:     "mst@...hat.com" <mst@...hat.com>,
        "jasowang@...hat.com" <jasowang@...hat.com>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "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>
Subject: Re: [PATCH net] virtio-net: reject small vring sizes

After further consideration, other virtio drivers need a minimum limit to the vring size too.

Maybe this can be more general, for example a new virtio_driver callback that is called (if implemented) during virtio_dev_probe, before drv->probe.

What do you think?

Thanks,
Alvaro