netdev - [PATCH v11 23/40] virtio_pci: move struct virtio_pci_common_cfg to virtio_pci

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Date:   Wed, 29 Jun 2022 14:56:39 +0800
From:   Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
To:     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>,
        Jason Wang <jasowang@...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>,
        Xuan Zhuo <xuanzhuo@...ux.alibaba.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: [PATCH v11 23/40] virtio_pci: move struct virtio_pci_common_cfg to virtio_pci_modern.h

In order to facilitate the expansion of virtio_pci_common_cfg in the
future, move it from uapi to virtio_pci_modern.h. In this way, we can
freely expand virtio_pci_common_cfg in the future.

Other projects using virtio_pci_common_cfg in uapi need to maintain a
separate virtio_pci_common_cfg or use the offset macro defined in uapi.

Signed-off-by: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
---
 include/linux/virtio_pci_modern.h | 26 ++++++++++++++++++++++++++
 include/uapi/linux/virtio_pci.h   | 26 --------------------------
 2 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/include/linux/virtio_pci_modern.h b/include/linux/virtio_pci_modern.h
index eb2bd9b4077d..c4f7ffbacb4e 100644
--- a/include/linux/virtio_pci_modern.h
+++ b/include/linux/virtio_pci_modern.h
@@ -5,6 +5,32 @@
 #include <linux/pci.h>
 #include <linux/virtio_pci.h>
 
+/* Fields in VIRTIO_PCI_CAP_COMMON_CFG: */
+struct virtio_pci_common_cfg {
+	/* About the whole device. */
+	__le32 device_feature_select;	/* read-write */
+	__le32 device_feature;		/* read-only */
+	__le32 guest_feature_select;	/* read-write */
+	__le32 guest_feature;		/* read-write */
+	__le16 msix_config;		/* read-write */
+	__le16 num_queues;		/* read-only */
+	__u8 device_status;		/* read-write */
+	__u8 config_generation;		/* read-only */
+
+	/* About a specific virtqueue. */
+	__le16 queue_select;		/* read-write */
+	__le16 queue_size;		/* read-write, power of 2. */
+	__le16 queue_msix_vector;	/* read-write */
+	__le16 queue_enable;		/* read-write */
+	__le16 queue_notify_off;	/* read-only */
+	__le32 queue_desc_lo;		/* read-write */
+	__le32 queue_desc_hi;		/* read-write */
+	__le32 queue_avail_lo;		/* read-write */
+	__le32 queue_avail_hi;		/* read-write */
+	__le32 queue_used_lo;		/* read-write */
+	__le32 queue_used_hi;		/* read-write */
+};
+
 struct virtio_pci_modern_device {
 	struct pci_dev *pci_dev;
 
diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
index 3a86f36d7e3d..247ec42af2c8 100644
--- a/include/uapi/linux/virtio_pci.h
+++ b/include/uapi/linux/virtio_pci.h
@@ -140,32 +140,6 @@ struct virtio_pci_notify_cap {
 	__le32 notify_off_multiplier;	/* Multiplier for queue_notify_off. */
 };
 
-/* Fields in VIRTIO_PCI_CAP_COMMON_CFG: */
-struct virtio_pci_common_cfg {
-	/* About the whole device. */
-	__le32 device_feature_select;	/* read-write */
-	__le32 device_feature;		/* read-only */
-	__le32 guest_feature_select;	/* read-write */
-	__le32 guest_feature;		/* read-write */
-	__le16 msix_config;		/* read-write */
-	__le16 num_queues;		/* read-only */
-	__u8 device_status;		/* read-write */
-	__u8 config_generation;		/* read-only */
-
-	/* About a specific virtqueue. */
-	__le16 queue_select;		/* read-write */
-	__le16 queue_size;		/* read-write, power of 2. */
-	__le16 queue_msix_vector;	/* read-write */
-	__le16 queue_enable;		/* read-write */
-	__le16 queue_notify_off;	/* read-only */
-	__le32 queue_desc_lo;		/* read-write */
-	__le32 queue_desc_hi;		/* read-write */
-	__le32 queue_avail_lo;		/* read-write */
-	__le32 queue_avail_hi;		/* read-write */
-	__le32 queue_used_lo;		/* read-write */
-	__le32 queue_used_hi;		/* read-write */
-};
-
 /* Fields in VIRTIO_PCI_CAP_PCI_CFG: */
 struct virtio_pci_cfg_cap {
 	struct virtio_pci_cap cap;
-- 
2.31.0