search for: eff9ddc

...ff-by: Dongli Zhang <dongli.zhang at oracle.com> --- drivers/virtio/virtio_pci_legacy.c | 6 ++++-- include/uapi/linux/virtio_pci.h | 2 -- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c index de062fb..eff9ddc 100644 --- a/drivers/virtio/virtio_pci_legacy.c +++ b/drivers/virtio/virtio_pci_legacy.c @@ -52,7 +52,8 @@ static void vp_get(struct virtio_device *vdev, unsigned offset, { struct virtio_pci_device *vp_dev = to_vp_device(vdev); void __iomem *ioaddr = vp_dev->ioaddr + - VIRTIO_PCI_CONFIG(...

...ff-by: Dongli Zhang <dongli.zhang at oracle.com> --- drivers/virtio/virtio_pci_legacy.c | 6 ++++-- include/uapi/linux/virtio_pci.h | 2 -- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c index de062fb..eff9ddc 100644 --- a/drivers/virtio/virtio_pci_legacy.c +++ b/drivers/virtio/virtio_pci_legacy.c @@ -52,7 +52,8 @@ static void vp_get(struct virtio_device *vdev, unsigned offset, { struct virtio_pci_device *vp_dev = to_vp_device(vdev); void __iomem *ioaddr = vp_dev->ioaddr + - VIRTIO_PCI_CONFIG(...

...g at oracle.com> > --- > drivers/virtio/virtio_pci_legacy.c | 6 ++++-- > include/uapi/linux/virtio_pci.h | 2 -- > 2 files changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c > index de062fb..eff9ddc 100644 > --- a/drivers/virtio/virtio_pci_legacy.c > +++ b/drivers/virtio/virtio_pci_legacy.c > @@ -52,7 +52,8 @@ static void vp_get(struct virtio_device *vdev, unsigned offset, > { > struct virtio_pci_device *vp_dev = to_vp_device(vdev); > void __iomem *ioaddr = vp_dev->io...

...ince v1: * leave the definition of VIRTIO_PCI_CONFIG() in header file to make userspace build happy drivers/virtio/virtio_pci_legacy.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c index de062fb..eff9ddc 100644 --- a/drivers/virtio/virtio_pci_legacy.c +++ b/drivers/virtio/virtio_pci_legacy.c @@ -52,7 +52,8 @@ static void vp_get(struct virtio_device *vdev, unsigned offset, { struct virtio_pci_device *vp_dev = to_vp_device(vdev); void __iomem *ioaddr = vp_dev->ioaddr + - VIRTIO_PCI_CONFIG(...

...sc); +/* the config->calc_num_vqs() implementation */ +unsigned short vp_calc_num_vqs(unsigned short num_vqs); const char *vp_bus_name(struct virtio_device *vdev); /* Setup the affinity for a virtqueue: diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c index eff9ddc..69d1050 100644 --- a/drivers/virtio/virtio_pci_legacy.c +++ b/drivers/virtio/virtio_pci_legacy.c @@ -209,6 +209,7 @@ static const struct virtio_config_ops virtio_pci_config_ops = { .bus_name = vp_bus_name, .set_vq_affinity = vp_set_vq_affinity, .get_vq_affinity = vp_get_vq_affinity, + .calc_...

...sc); +/* the config->calc_num_vqs() implementation */ +unsigned short vp_calc_num_vqs(unsigned short num_vqs); const char *vp_bus_name(struct virtio_device *vdev); /* Setup the affinity for a virtqueue: diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c index eff9ddc..69d1050 100644 --- a/drivers/virtio/virtio_pci_legacy.c +++ b/drivers/virtio/virtio_pci_legacy.c @@ -209,6 +209,7 @@ static const struct virtio_config_ops virtio_pci_config_ops = { .bus_name = vp_bus_name, .set_vq_affinity = vp_set_vq_affinity, .get_vq_affinity = vp_get_vq_affinity, + .calc_...

I observed that there is one msix vector for config and one shared vector for all queues in below qemu cmdline, when the num-queues for virtio-blk is more than the number of possible cpus: qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6" # cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 ... ... 24: 0

I observed that there is one msix vector for config and one shared vector for all queues in below qemu cmdline, when the num-queues for virtio-blk is more than the number of possible cpus: qemu: "-smp 4" while "-device virtio-blk-pci,drive=drive-0,id=virtblk0,num-queues=6" # cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 ... ... 24: 0