leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

virtio: provide a method to get the IRQ affinity mask for a virtqueue

Browse Source 
This basically passed up the pci_irq_get_affinity information through
virtio through an optional get_vq_affinity method.  It is only implemented
by the PCI backend for now, and only when we use per-virtqueue IRQs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Christoph Hellwig
2017-02-05 18:15:23 +01:00
committed by Michael S. Tsirkin
parent fb5e31d970
commit bbaba47956
5 changed files with 19 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/virtio/virtio_pci_common.h
View File

@@ -108,6 +108,8 @@ const char *vp_bus_name(struct virtio_device *vdev);
*/
int vp_set_vq_affinity(struct virtqueue *vq, int cpu);
const struct cpumask *vp_get_vq_affinity(struct virtio_device *vdev, int index);
#if IS_ENABLED(CONFIG_VIRTIO_PCI_LEGACY)
int virtio_pci_legacy_probe(struct virtio_pci_device *);
void virtio_pci_legacy_remove(struct virtio_pci_device *);