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| author | Jason Wang <jasowang@redhat.com> | 2021-01-04 07:54:49 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-02-23 13:52:57 +0100 |
| commit | 1a5c85f16594416df258fe38ec05e0dd05846479 (patch) | |
| tree | 5e72b42079ea8c8a840137816dfc885460783de8 /drivers/virtio | |
| parent | virtio-pci-modern: introduce vp_modern_remove() (diff) | |
| download | linux-1a5c85f16594416df258fe38ec05e0dd05846479.tar.xz linux-1a5c85f16594416df258fe38ec05e0dd05846479.zip | |
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>
Diffstat (limited to 'drivers/virtio')
| -rw-r--r-- | drivers/virtio/virtio_pci_modern.c | 16 |
1 files 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, |