diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-02-05 18:15:23 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-02-27 19:54:05 +0100 |
| commit | bbaba479563910aaa51e59bb9027a09e396d3a3c (patch) | |
| tree | 0c67858d20c8a87b3abfc8cd4baf4f68ce84165c /drivers/virtio/virtio_pci_common.h | |
| parent | virtio: allow drivers to request IRQ affinity when creating VQs (diff) | |
| download | linux-bbaba479563910aaa51e59bb9027a09e396d3a3c.tar.xz linux-bbaba479563910aaa51e59bb9027a09e396d3a3c.zip | |
virtio: provide a method to get the IRQ affinity mask for a virtqueue
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>
Diffstat (limited to 'drivers/virtio/virtio_pci_common.h')
| -rw-r--r-- | drivers/virtio/virtio_pci_common.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index a6ad9ec6baef..ac8c9d788964 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -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 *); |