[SeaBIOS] Re: [PATCH v4 3/3] virtio-blk.: split large IO according to size_max

[Pei, Andy]

Hi Gerd,

Thanks for your effort.

-----Original Message-----
From: Gerd Hoffmann  
Sent: Tuesday, December 7, 2021 4:28 PM
To: Pei, Andy 
Cc: [e-mail]; [e-mail]; Ding Limin 
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 
> Signed-off-by: Ding Limin

Reviewed-by: Gerd Hoffmann