linux-kernel - Re: [PATCH v14] i2c: virtio: add a virtio i2c frontend driver

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Message-ID: <20210714021042.56hnr73wzrie3jzj@vireshk-i7>
Date:   Wed, 14 Jul 2021 07:40:42 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     Jie Deng <jie.deng@...el.com>, linux-i2c@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, wsa@...nel.org,
        wsa+renesas@...g-engineering.com, arnd@...db.de,
        jasowang@...hat.com, andriy.shevchenko@...ux.intel.com,
        yu1.wang@...el.com, shuo.a.liu@...el.com, conghui.chen@...el.com,
        stefanha@...hat.com, gregkh@...uxfoundation.org
Subject: Re: [PATCH v14] i2c: virtio: add a virtio i2c frontend driver

On 13-07-21, 11:38, Michael S. Tsirkin wrote:
> I think we should tweak this such that we add multiple buffers but
> only make them visible to host after all add commands were successful.
> With split this is possible by deffering avail idx update,
> with packed by deferring update of the avail bit in the descriptor.
> I'll write a patch to add an API like that to virtio, then we
> can switch to that.

That will be great, exactly what we wanted but didn't ask for :)

-- 
viresh