similar to: [RFC PATCH 0/2] virtio-mmio: add irqfd support for vhost-net based on virtio-mmio

From: Li Liu <john.liuli at huawei.com> This irq handler will get the interrupt reason from a shared memory. And will be assigned only while irqfd enabled. Signed-off-by: Li Liu <john.liuli at huawei.com> --- drivers/virtio/virtio_mmio.c | 34 ++++++++++++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) diff --git a/drivers/virtio/virtio_mmio.c

From: Li Liu <john.liuli at huawei.com> This irq handler will get the interrupt reason from a shared memory. And will be assigned only while irqfd enabled. Signed-off-by: Li Liu <john.liuli at huawei.com> --- drivers/virtio/virtio_mmio.c | 34 ++++++++++++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) diff --git a/drivers/virtio/virtio_mmio.c

On 2014/10/26 19:56, Michael S. Tsirkin wrote: > On Sat, Oct 25, 2014 at 04:24:54PM +0800, john.liuli wrote: >> From: Li Liu <john.liuli at huawei.com> >> >> This irq handler will get the interrupt reason from a >> shared memory. And will be assigned only while irqfd >> enabled. >> >> Signed-off-by: Li Liu <john.liuli at huawei.com> >>

On 2014/10/26 19:56, Michael S. Tsirkin wrote: > On Sat, Oct 25, 2014 at 04:24:54PM +0800, john.liuli wrote: >> From: Li Liu <john.liuli at huawei.com> >> >> This irq handler will get the interrupt reason from a >> shared memory. And will be assigned only while irqfd >> enabled. >> >> Signed-off-by: Li Liu <john.liuli at huawei.com> >>

From: Li Liu <john.liuli at huawei.com> Add a new register offset VIRTIO_MMIO_ISRMEM which help to estblish a shared memory region between virtio-mmio driver and qemu with two purposes: 1.Guest virtio-mmio driver can get the interrupt reason. 2.Check irqfd enabled or not to register different irq handler. Signed-off-by: Li Liu <john.liuli at huawei.com> ---

On Sat, Oct 25, 2014 at 04:24:54PM +0800, john.liuli wrote: > From: Li Liu <john.liuli at huawei.com> > > This irq handler will get the interrupt reason from a > shared memory. And will be assigned only while irqfd > enabled. > > Signed-off-by: Li Liu <john.liuli at huawei.com> > --- > drivers/virtio/virtio_mmio.c | 34 ++++++++++++++++++++++++++++++++--

On Mon, Oct 27, 2014 at 07:04:11PM +0800, Li Liu wrote: > > > On 2014/10/26 19:56, Michael S. Tsirkin wrote: > > On Sat, Oct 25, 2014 at 04:24:54PM +0800, john.liuli wrote: > >> From: Li Liu <john.liuli at huawei.com> > >> > >> This irq handler will get the interrupt reason from a > >> shared memory. And will be assigned only while irqfd

As the current virtio-mmio only support single irq, so some advanced features such as vhost-net with irqfd are not supported. And the net performance is not the best without vhost-net and irqfd supporting. This patch support virtio-mmio to request multiple irqs like virtio-pci. With this patch and qemu assigning multiple irqs for virtio-mmio device, it's ok to use vhost-net with irqfd on

As the current virtio-mmio only support single irq, so some advanced features such as vhost-net with irqfd are not supported. And the net performance is not the best without vhost-net and irqfd supporting. This patch support virtio-mmio to request multiple irqs like virtio-pci. With this patch and qemu assigning multiple irqs for virtio-mmio device, it's ok to use vhost-net with irqfd on

On 2014/10/26 19:52, Michael S. Tsirkin wrote: > On Sat, Oct 25, 2014 at 04:24:52PM +0800, john.liuli wrote: >> From: Li Liu <john.liuli at huawei.com> >> >> This set of patches try to implemet irqfd support of vhost-net >> based on virtio-mmio. >> >> I had posted a mail to talking about the status of vhost-net >> on kvm-arm refer to

On 2014/10/26 19:52, Michael S. Tsirkin wrote: > On Sat, Oct 25, 2014 at 04:24:52PM +0800, john.liuli wrote: >> From: Li Liu <john.liuli at huawei.com> >> >> This set of patches try to implemet irqfd support of vhost-net >> based on virtio-mmio. >> >> I had posted a mail to talking about the status of vhost-net >> on kvm-arm refer to

On 2014/11/6 17:34, Michael S. Tsirkin wrote: > On Tue, Nov 04, 2014 at 05:35:12PM +0800, Shannon Zhao wrote: >> As the current virtio-mmio only support single irq, >> so some advanced features such as vhost-net with irqfd >> are not supported. And the net performance is not >> the best without vhost-net and irqfd supporting. >> >> This patch support

On 2014/11/6 17:34, Michael S. Tsirkin wrote: > On Tue, Nov 04, 2014 at 05:35:12PM +0800, Shannon Zhao wrote: >> As the current virtio-mmio only support single irq, >> so some advanced features such as vhost-net with irqfd >> are not supported. And the net performance is not >> the best without vhost-net and irqfd supporting. >> >> This patch support

On 10/27/2014 12:23 PM, Li Liu wrote: > > > On 2014/10/27 17:37, Peter Maydell wrote: >> On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: >>> To get the interrupt reason to support such VIRTIO_NET_F_STATUS >>> features I add a new register offset VIRTIO_MMIO_ISRMEM which >>> will help to establish a shared memory region

On 10/27/2014 12:23 PM, Li Liu wrote: > > > On 2014/10/27 17:37, Peter Maydell wrote: >> On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: >>> To get the interrupt reason to support such VIRTIO_NET_F_STATUS >>> features I add a new register offset VIRTIO_MMIO_ISRMEM which >>> will help to establish a shared memory region

On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: > To get the interrupt reason to support such VIRTIO_NET_F_STATUS > features I add a new register offset VIRTIO_MMIO_ISRMEM which > will help to establish a shared memory region between qemu and > virtio-mmio device. Then the interrupt reason can be accessed by > guest driver through this region. At the

On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: > To get the interrupt reason to support such VIRTIO_NET_F_STATUS > features I add a new register offset VIRTIO_MMIO_ISRMEM which > will help to establish a shared memory region between qemu and > virtio-mmio device. Then the interrupt reason can be accessed by > guest driver through this region. At the

in vm_find_vqs() irq has a wrong type so, in case of no IRQ resource defined, wrong parameter will be passed to request_irq() Signed-off-by: Ihor Matushchak <ihor.matushchak at foobox.net> --- Changes in v2: Don't overwrite error code value. drivers/virtio/virtio_mmio.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/virtio/virtio_mmio.c

in vm_find_vqs() irq has a wrong type so, in case of no IRQ resource defined, wrong parameter will be passed to request_irq() Signed-off-by: Ihor Matushchak <ihor.matushchak at foobox.net> --- Changes in v2: Don't overwrite error code value. drivers/virtio/virtio_mmio.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/virtio/virtio_mmio.c

On Sat, Oct 25, 2014 at 04:24:53PM +0800, john.liuli wrote: > From: Li Liu <john.liuli at huawei.com> > > Add a new register offset VIRTIO_MMIO_ISRMEM which help to > estblish a shared memory region between virtio-mmio driver > and qemu with two purposes: > > 1.Guest virtio-mmio driver can get the interrupt reason. > 2.Check irqfd enabled or not to register