similar to: [PATCH v3 03/11] vdpa: Add set_irq_affinity callback in vdpa_config_ops

? 2023/2/28 17:41, Xie Yongji ??: > Add eventfd for the vdpa callback so that user > can signal it directly instead of running the > callback. It will be used for vhost-vdpa case. > > Signed-off-by: Xie Yongji <xieyongji at bytedance.com> > --- > drivers/vhost/vdpa.c | 2 ++ > drivers/virtio/virtio_vdpa.c | 1 + > include/linux/vdpa.h | 3 +++

On Tue, Mar 28, 2023 at 12:05?PM Yongji Xie <xieyongji at bytedance.com> wrote: > > On Tue, Mar 28, 2023 at 11:44?AM Jason Wang <jasowang at redhat.com> wrote: > > > > On Tue, Mar 28, 2023 at 11:33?AM Yongji Xie <xieyongji at bytedance.com> wrote: > > > > > > On Tue, Mar 28, 2023 at 11:14?AM Jason Wang <jasowang at redhat.com> wrote: >

On Tue, Mar 28, 2023 at 11:03?AM Yongji Xie <xieyongji at bytedance.com> wrote: > > On Fri, Mar 24, 2023 at 2:28?PM Jason Wang <jasowang at redhat.com> wrote: > > > > On Thu, Mar 23, 2023 at 1:31?PM Xie Yongji <xieyongji at bytedance.com> wrote: > > > > > > To support interrupt affinity spreading mechanism, > > > this makes use of

On Mon, Dec 19, 2022 at 05:36:02PM +0800, Yongji Xie wrote: > On Mon, Dec 19, 2022 at 3:33 PM Michael S. Tsirkin <mst at redhat.com> wrote: > > > > On Mon, Dec 05, 2022 at 04:41:17PM +0800, Xie Yongji wrote: > > > Export irq_create_affinity_masks() so that some modules > > > can make use of it to implement interrupt affinity > > > spreading

? 2023/3/23 13:30, Xie Yongji ??: > Since virtio-vdpa bus driver already support interrupt > affinity spreading mechanism, let's implement the > set_vq_affinity callback to bring it to vduse device. > After we get the virtqueue's affinity, we can spread > IRQs between CPUs in the affinity mask, in a round-robin > manner, to run the irq callback. > > Signed-off-by:

tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost head: 84d40e4b4bc64456abf5ef5663871053b40e84ac commit: 03750f7fa49f9384911059fe16f5367b7e86f99d [40/45] virtio_vdpa: legacy features handling config: nds32-randconfig-r003-20200728 (attached as .config) compiler: nds32le-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget

On 2020/7/13 ??6:20, Zhu, Lingshan wrote: > > > On 7/13/2020 4:28 PM, Jason Wang wrote: >> >> On 2020/7/12 ??10:49, Zhu Lingshan wrote: >>> This commit initialize IRQ offloading function pointers in >>> virtio_vdpa_driver to NULL. Becasue irq offloading only focus >>> on VMs for vhost_vdpa. >>> >>> Signed-off-by: Zhu Lingshan

The referenced patch calls set_vq_affinity without checking if the op is valid. This patch adds the check. Fixes: 3dad56823b53 ("virtio-vdpa: Support interrupt affinity spreading mechanism") Reviewed-by: Gal Pressman <gal at nvidia.com> Signed-off-by: Dragos Tatulea <dtatulea at nvidia.com> --- drivers/virtio/virtio_vdpa.c | 4 +++- 1 file changed, 3 insertions(+), 1

On 2023-05-04 a.m.9:50, Dragos Tatulea wrote: > External email: Use caution opening links or attachments > > > The referenced patch calls set_vq_affinity without checking if the op is > valid. This patch adds the check. > > Fixes: 3dad56823b53 ("virtio-vdpa: Support interrupt affinity spreading mechanism") > Reviewed-by: Gal Pressman <gal at nvidia.com>

On 2020/7/12 ??10:49, Zhu Lingshan wrote: > This commit initialize IRQ offloading function pointers in > virtio_vdpa_driver to NULL. Becasue irq offloading only focus > on VMs for vhost_vdpa. > > Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com> > --- > drivers/virtio/virtio_vdpa.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git

We normally expect vdpa to use the modern interface. However for consistency, let's use same APIs as vhost for legacy guests. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/virtio/virtio_vdpa.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/virtio/virtio_vdpa.c b/drivers/virtio/virtio_vdpa.c index c30eb55030be..4a9ddb44b2a7

On Thu, 2023-05-04 at 13:08 -0400, Feng Liu wrote: > > > On 2023-05-04 a.m.9:50, Dragos Tatulea wrote: > > External email: Use caution opening links or attachments > > > > > > The referenced patch calls set_vq_affinity without checking if the op is > > valid. This patch adds the check. > > > > Fixes: 3dad56823b53 ("virtio-vdpa: Support

On Thu, May 04, 2023 at 01:08:54PM -0400, Feng Liu wrote: > > > On 2023-05-04 a.m.9:50, Dragos Tatulea wrote: > > External email: Use caution opening links or attachments > > > > > > The referenced patch calls set_vq_affinity without checking if the op is > > valid. This patch adds the check. > > > > Fixes: 3dad56823b53 ("virtio-vdpa:

On Sun, Apr 02, 2023 at 11:10:34AM +0300, Alvaro Karsz wrote: > Add VIRTIO_F_NOTIFICATION_DATA support for vDPA transport. > If this feature is negotiated, the driver passes extra data when kicking > a virtqueue. > > A device that offers this feature needs to implement the > kick_vq_with_data callback. > > kick_vq_with_data receives the vDPA device and data. > data

On Sun, Apr 2, 2023 at 4:10?PM Alvaro Karsz <alvaro.karsz at solid-run.com> wrote: > > Add VIRTIO_F_NOTIFICATION_DATA support for vDPA transport. > If this feature is negotiated, the driver passes extra data when kicking > a virtqueue. > > A device that offers this feature needs to implement the > kick_vq_with_data callback. > > kick_vq_with_data receives the vDPA

Add VIRTIO_F_NOTIFICATION_DATA support for vDPA transport. If this feature is negotiated, the driver passes extra data when kicking a virtqueue. A device that offers this feature needs to implement the kick_vq_with_data callback. kick_vq_with_data receives the vDPA device and data. data includes: 16 bits vqn and 16 bits next available index for split virtqueues. 16 bits vqs, 15 least significant

This patch introduces a vDPA transport for virtio. This is used to use kernel virtio driver to drive the mediated device that is capable of populating virtqueue directly. A new virtio-vdpa driver will be registered to the vDPA bus, when a new virtio-vdpa device is probed, it will register the device with vdpa based config ops. This means it is a software transport between vDPA driver and vDPA

This patch introduces a vDPA transport for virtio. This is used to use kernel virtio driver to drive the vDPA device that is capable of populating virtqueue directly. A new virtio-vdpa driver will be registered to the vDPA bus, when a new virtio-vdpa device is probed, it will register the device with vdpa based config ops. This means it is a software transport between vDPA driver and vDPA device.

Add VIRTIO_F_NOTIFICATION_DATA support for vDPA transport. If this feature is negotiated, the driver passes extra data when kicking a virtqueue. A device that offers this feature needs to implement the kick_vq_with_data callback. kick_vq_with_data receives the vDPA device and data. data includes the vqn, next_off and next_wrap for packed virtqueues. This patch follows a patch [1] by Viktor

On Thu, Aug 06, 2020 at 03:27:38PM +0800, Jason Wang wrote: > > On 2020/8/6 ??1:53, Michael S. Tsirkin wrote: > > On Thu, Aug 06, 2020 at 11:23:05AM +0800, Jason Wang wrote: > > > On 2020/8/5 ??7:40, Michael S. Tsirkin wrote: > > > > On Wed, Aug 05, 2020 at 02:14:07PM +0800, Jason Wang wrote: > > > > > On 2020/8/4 ??5:00, Michael S. Tsirkin wrote: