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Subject[PATCH V2 05/19] virtio-pci-modern: introduce helper to set config vector
Date
This patch introduces vp_modern_config_vector() for setting config
vector.

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
drivers/virtio/virtio_pci_modern.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index 4be9afad547e..2e37bfc89655 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -315,9 +315,16 @@ static void vp_reset(struct virtio_device *vdev)
vp_synchronize_vectors(vdev);
}

-static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
+/*
+ * vp_modern_config_vector - set the vector for config interrupt
+ * @mdev: the modern virtio-pci device
+ * @vector: the config vector
+ *
+ * Returns the config vector read from the device
+ */
+static u16 vp_modern_config_vector(struct virtio_pci_modern_device *mdev,
+ u16 vector)
{
- struct virtio_pci_modern_device *mdev = &vp_dev->mdev;
struct virtio_pci_common_cfg __iomem *cfg = mdev->common;

/* Setup the vector used for configuration events */
@@ -327,6 +334,11 @@ static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
return vp_ioread16(&cfg->msix_config);
}

+static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
+{
+ return vp_modern_config_vector(&vp_dev->mdev, vector);
+}
+
static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev,
struct virtio_pci_vq_info *info,
unsigned index,
--
2.25.1
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