Jason Wang 75a0a52be3 virtio: introduce an API to set affinity for a virtqueue ... Sometimes, virtio device need to configure irq affinity hint to maximize the performance. Instead of just exposing the irq of a virtqueue, this patch introduce an API to set the affinity for a virtqueue. The api is best-effort, the affinity hint may not be set as expected due to platform support, irq sharing or irq type. Currently, only pci method were implemented and we set the affinity according to: - if device uses INTX, we just ignore the request - if device has per vq vector, we force the affinity hint - if the virtqueues share MSI, make the affinity OR over all affinities requested Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>		2012-09-28 15:05:15 +09:30
..
config.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
Kconfig	virtio_balloon: not EXPERIMENTAL any more.	2012-09-28 15:05:14 +09:30
Makefile	virtio: Add platform bus driver for memory mapped virtio device	2011-11-02 11:41:01 +10:30
virtio.c	[SCSI] virtio-scsi: Add vdrv->scan for post VIRTIO_CONFIG_S_DRIVER_OK LUN scanning	2012-07-20 08:59:03 +01:00
virtio_balloon.c	virtio-balloon: fix add/get API use	2012-07-09 09:07:22 +09:30
virtio_mmio.c	virtio-ring: move queue_index to vring_virtqueue	2012-09-28 15:05:15 +09:30
virtio_pci.c	virtio: introduce an API to set affinity for a virtqueue	2012-09-28 15:05:15 +09:30
virtio_ring.c	virtio-ring: move queue_index to vring_virtqueue	2012-09-28 15:05:15 +09:30