Re: [RFC PATCH 1/4] virtio_pci: add a definition of queue flag in ISR

[Shunsuke Mie]

2023年2月3日(金) 19:16 Michael S. Tsirkin <mst@xxxxxxxxxx>:
>
> On Fri, Feb 03, 2023 at 07:04:15PM +0900, Shunsuke Mie wrote:
> > Already it has beed defined a config changed flag of ISR, but not the queue
> > flag. Add a macro for it.
> >
> > Signed-off-by: Shunsuke Mie <mie@xxxxxxxxxx>
> > Signed-off-by: Takanari Hayama <taki@xxxxxxxxxx>
> > ---
> >  include/uapi/linux/virtio_pci.h | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
> > index f703afc7ad31..fa82afd6171a 100644
> > --- a/include/uapi/linux/virtio_pci.h
> > +++ b/include/uapi/linux/virtio_pci.h
> > @@ -94,6 +94,8 @@
> >
> >  #endif /* VIRTIO_PCI_NO_LEGACY */
> >
> > +/* Ths bit of the ISR which indicates a queue entry update */
>
> typo
> Something to add here:
>         Note: only when MSI-X is disabled
I'll fix both that way.
>
>
> > +#define VIRTIO_PCI_ISR_QUEUE         0x1
> >  /* The bit of the ISR which indicates a device configuration change. */
> >  #define VIRTIO_PCI_ISR_CONFIG                0x2
> >  /* Vector value used to disable MSI for queue */
> > --
> > 2.25.1
>
Best,
Shunsuke