linux-kernel - Re: [PATCH RFC 10/12] vdpa_sim: split vdpasim

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Date:   Tue, 17 Nov 2020 11:27:03 +0000
From:   Stefan Hajnoczi <stefanha@...hat.com>
To:     Stefano Garzarella <sgarzare@...hat.com>
Cc:     virtualization@...ts.linux-foundation.org,
        Laurent Vivier <lvivier@...hat.com>,
        linux-kernel@...r.kernel.org, Eli Cohen <elic@...dia.com>,
        Jason Wang <jasowang@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Max Gurtovoy <mgurtovoy@...dia.com>
Subject: Re: [PATCH RFC 10/12] vdpa_sim: split vdpasim_virtqueue's iov field
 in riov and wiov

On Fri, Nov 13, 2020 at 02:47:10PM +0100, Stefano Garzarella wrote:
> vringh_getdesc_iotlb() manages 2 iovs for writable and readable
> descriptors. This is very useful for the block device, where for
> each request we have both types of descriptor.
> 
> Let's split the vdpasim_virtqueue's iov field in riov and wiov
> to use them with vringh_getdesc_iotlb().

Is riov/wiov naming common? VIRTIO uses "in" (device-to-driver) and
"out" (driver-to-device). Using VIRTIO terminology might be clearer.

Stefan

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