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virtio_pci_modern: introduce helper to map vq notify area

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This patch factors out the logic of vq notify area mapping. Following
patches will switch to use this common helpers for both virtio_pci
library and virtio-pci vDPA driver.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210415073147.19331-2-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
This commit is contained in:
Jason Wang
2021-04-15 03:31:41 -04:00
committed by Michael S. Tsirkin
parent 122b84a126
commit 9e3bb9b79a
2 changed files with 37 additions and 0 deletions
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2
include/linux/virtio_pci_modern.h
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@@ -106,6 +106,8 @@ void __iomem *vp_modern_map_capability(struct virtio_pci_modern_device *mdev, in
u32 align,
u32 start, u32 size,
size_t *len);
void *vp_modern_map_vq_notify(struct virtio_pci_modern_device *mdev,
u16 index);
int vp_modern_probe(struct virtio_pci_modern_device *mdev);
void vp_modern_remove(struct virtio_pci_modern_device *mdev);
#endif