linux-kernel - Re: [RFC PATCH v2 2/3] virtio_pci: add a definition of queue flag in ISR

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Message-ID: <CANXvt5oKCoqzp8PfA7A1aTomEG3ycWNFok0YAMp2xCFgAGBbBw@mail.gmail.com>
Date:   Wed, 10 May 2023 12:18:50 +0900
From:   Shunsuke Mie <mie@...l.co.jp>
To:     Jason Wang <jasowang@...hat.com>
Cc:     Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        "Michael S. Tsirkin" <mst@...hat.com>, Frank Li <Frank.Li@....com>,
        Jon Mason <jdmason@...zu.us>,
        Randy Dunlap <rdunlap@...radead.org>,
        Ren Zhijie <renzhijie2@...wei.com>,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        virtualization@...ts.linux-foundation.org
Subject: Re: [RFC PATCH v2 2/3] virtio_pci: add a definition of queue flag in ISR

2023年5月8日(月) 12:59 Jason Wang <jasowang@...hat.com>:
>
> On Thu, Apr 27, 2023 at 6:44 PM Shunsuke Mie <mie@...l.co.jp> wrote:
> >
> > Already it has beed defined a config changed flag of ISR, but not the queue
>
> Typo should be "been".
Thanks for pointing that out.
> > flag. Add a macro for it.
> >
> > Signed-off-by: Shunsuke Mie <mie@...l.co.jp>
>
> Other than this,
>
> Acked-by: Jason Wang <jasowang@...hat.com>
>
> > ---
> >  include/uapi/linux/virtio_pci.h | 3 +++
> >  1 file changed, 3 insertions(+)
> >
> > diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
> > index f703afc7ad31..d405bea27240 100644
> > --- a/include/uapi/linux/virtio_pci.h
> > +++ b/include/uapi/linux/virtio_pci.h
> > @@ -94,6 +94,9 @@
> >
> >  #endif /* VIRTIO_PCI_NO_LEGACY */
> >
> > +/* Bits for ISR status field:only when if MSI-X is disabled */
> > +/* The bit of the ISR which indicates a queue entry update. */
> > +#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
> >
>