Re: [PATCH] virtio-pci: implement VIRTIO_F_RING_STATE

[Cornelia Huck <cohuck@redhat.com>]

On Wed, Jul 07 2021, Jason Wang <jasowang@redhat.com> wrote:

> This patch is a follow up for the virtqueue state synchronization
> series to implement VIRTIO_F_RING_STATE via a dedicated capability for
> PCI transport.
>
> With the help of the STOP status bit, the virtqueue state
> synchronization for PCI should be self contained.
>
> Signed-off-by: Jason Wang <jasowang@redhat.com>
> ---
>  content.tex | 32 ++++++++++++++++++++++++++++++++
>  1 file changed, 32 insertions(+)

(...)

> +\devicenormative{\paragraph}{General Virtqueue State}{Virtio Transport Options / Virtio Over PCI Bus / PCI Device Layout / General Virtqueue State}
> +
> +The device MUST present at least one VIRTIO_PCI_CAP_RING_STATE
> capability if VITIO_F_RING_STATE is negotiated.

s/VITIO/VIRTIO/

Are multiple capabilities inteded to enable parallel access to multiple
virtqueues?

> +
>  \subsubsection{Legacy Interfaces: A Note on PCI Device Layout}\label{sec:Virtio Transport Options / Virtio Over PCI Bus / PCI Device Layout / Legacy Interfaces: A Note on PCI Device Layout}
>  
>  Transitional devices MUST present part of configuration