netdev - Re: [PATCH v12 27/40] virtio_pci: struct virtio_pci_common_cfg add queue

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Date:   Thu, 21 Jul 2022 17:14:50 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
        virtualization@...ts.linux-foundation.org
Cc:     Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Johannes Berg <johannes@...solutions.net>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>,
        Vadim Pasternak <vadimp@...dia.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Cornelia Huck <cohuck@...hat.com>,
        Halil Pasic <pasic@...ux.ibm.com>,
        Eric Farman <farman@...ux.ibm.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Vincent Whitchurch <vincent.whitchurch@...s.com>,
        linux-um@...ts.infradead.org, netdev@...r.kernel.org,
        platform-driver-x86@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, linux-s390@...r.kernel.org,
        kvm@...r.kernel.org, bpf@...r.kernel.org,
        kangjie.xu@...ux.alibaba.com
Subject: Re: [PATCH v12 27/40] virtio_pci: struct virtio_pci_common_cfg add
 queue_reset


在 2022/7/20 11:04, Xuan Zhuo 写道:
> Add queue_reset in virtio_pci_common_cfg.
>
>   https://github.com/oasis-tcs/virtio-spec/issues/124
>   https://github.com/oasis-tcs/virtio-spec/issues/139
>
> Signed-off-by: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>


Acked-by: Jason Wang <jasowang@...hat.com>


> ---
>   include/linux/virtio_pci_modern.h | 2 +-
>   include/uapi/linux/virtio_pci.h   | 1 +
>   2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/virtio_pci_modern.h b/include/linux/virtio_pci_modern.h
> index 41f5a018bd94..05123b9a606f 100644
> --- a/include/linux/virtio_pci_modern.h
> +++ b/include/linux/virtio_pci_modern.h
> @@ -9,7 +9,7 @@ struct virtio_pci_modern_common_cfg {
>   	struct virtio_pci_common_cfg cfg;
>   
>   	__le16 queue_notify_data;	/* read-write */
> -	__le16 padding;
> +	__le16 queue_reset;		/* read-write */
>   };
>   
>   struct virtio_pci_modern_device {
> diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
> index f5981a874481..f703afc7ad31 100644
> --- a/include/uapi/linux/virtio_pci.h
> +++ b/include/uapi/linux/virtio_pci.h
> @@ -203,6 +203,7 @@ struct virtio_pci_cfg_cap {
>   #define VIRTIO_PCI_COMMON_Q_USEDLO	48
>   #define VIRTIO_PCI_COMMON_Q_USEDHI	52
>   #define VIRTIO_PCI_COMMON_Q_NDATA	56
> +#define VIRTIO_PCI_COMMON_Q_RESET	58
>   
>   #endif /* VIRTIO_PCI_NO_MODERN */
>