qemu-e2k/hw/virtio
Jason Wang 51a81a2118 virtio-net: calculating proper msix vectors on init
Currently, the default msix vectors for virtio-net-pci is 3 which is
obvious not suitable for multiqueue guest, so we depends on the user
or management tools to pass a correct vectors parameter. In fact, we
can simplifying this by calculating the number of vectors on realize.

Consider we have N queues, the number of vectors needed is 2*N + 2
(#queue pairs + plus one config interrupt and control vq). We didn't
check whether or not host support control vq because it was added
unconditionally by qemu to avoid breaking legacy guests such as Minix.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00
..
Kconfig
meson.build
trace-events
trace.h
vhost-backend.c
vhost-scsi-pci.c
vhost-stub.c
vhost-user-blk-pci.c
vhost-user-fs-pci.c
vhost-user-fs.c
vhost-user-input-pci.c
vhost-user-scsi-pci.c
vhost-user-vsock-pci.c
vhost-user-vsock.c
vhost-user.c
vhost-vdpa.c
vhost-vsock-common.c
vhost-vsock-pci.c
vhost-vsock.c
vhost.c Various spelling fixes 2021-03-09 21:19:10 +01:00
virtio-9p-pci.c
virtio-balloon-pci.c
virtio-balloon.c
virtio-blk-pci.c
virtio-bus.c
virtio-crypto-pci.c
virtio-crypto.c
virtio-input-host-pci.c
virtio-input-pci.c
virtio-iommu-pci.c
virtio-iommu.c virtio-iommu: Handle non power of 2 range invalidations 2021-03-12 12:40:10 +00:00
virtio-mem-pci.c
virtio-mem-pci.h
virtio-mem.c
virtio-mmio.c virtio-mmio: improve virtio-mmio get_dev_path alog 2021-03-05 15:17:34 +00:00
virtio-net-pci.c virtio-net: calculating proper msix vectors on init 2021-03-15 16:41:22 +08:00
virtio-pci.c
virtio-pci.h
virtio-pmem-pci.c
virtio-pmem-pci.h
virtio-pmem.c
virtio-rng-pci.c
virtio-rng.c sysemu: Let VMChangeStateHandler take boolean 'running' argument 2021-03-09 23:13:57 +01:00
virtio-scsi-pci.c
virtio-serial-pci.c
virtio.c sysemu: Let VMChangeStateHandler take boolean 'running' argument 2021-03-09 23:13:57 +01:00