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virtio-pci-modern: introduce helper to set config vector
This patch introduces vp_modern_config_vector() for setting config vector. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210104065503.199631-6-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -315,9 +315,16 @@ static void vp_reset(struct virtio_device *vdev)
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vp_synchronize_vectors(vdev);
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}
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static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
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/*
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* vp_modern_config_vector - set the vector for config interrupt
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* @mdev: the modern virtio-pci device
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* @vector: the config vector
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*
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* Returns the config vector read from the device
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*/
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static u16 vp_modern_config_vector(struct virtio_pci_modern_device *mdev,
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u16 vector)
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{
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struct virtio_pci_modern_device *mdev = &vp_dev->mdev;
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struct virtio_pci_common_cfg __iomem *cfg = mdev->common;
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/* Setup the vector used for configuration events */
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@ -327,6 +334,11 @@ static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
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return vp_ioread16(&cfg->msix_config);
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}
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static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
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{
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return vp_modern_config_vector(&vp_dev->mdev, vector);
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}
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static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev,
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struct virtio_pci_vq_info *info,
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unsigned index,
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