Hi Gerd,

Thanks for your effort.

-----Original Message-----
From: Gerd Hoffmann <[email protected]> 
Sent: Tuesday, December 7, 2021 4:28 PM
To: Pei, Andy <[email protected]>
Cc: [email protected]; [email protected]; Ding Limin 
<[email protected]>
Subject: Re: [PATCH v4 3/3] virtio-blk.: split large IO according to size_max

On Tue, Dec 07, 2021 at 09:31:08AM +0800, Andy Pei wrote:
> if driver reads data larger than VIRTIO_BLK_F_SIZE_MAX, it will cause 
> some issue to the DMA engine.
> 
> So when upper software wants to read data larger than 
> VIRTIO_BLK_F_SIZE_MAX, virtio-blk driver split one large request into 
> multiple smaller ones.
> 
> Signed-off-by: Andy Pei <[email protected]>
> Signed-off-by: Ding Limin <[email protected]>

Reviewed-by: Gerd Hoffmann <[email protected]>

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