Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Mon, May 21, 2018 at 10:30:51AM +0800, Jason Wang wrote: > On 2018年05月19日 10:29, Tiwei Bie wrote: > > > I don't hope so. > > > > > > > I agreed driver should track the DMA addrs or some > > > > other necessary things from the very beginning. And > > > > I also repeated the spec to emphasize

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Mon, May 21, 2018 at 10:30:51AM +0800, Jason Wang wrote: > On 2018年05月19日 10:29, Tiwei Bie wrote: > > > I don't hope so. > > > > > > > I agreed driver should track the DMA addrs or some > > > > other necessary things from the very beginning. And > > > > I also repeated the spec to emphasize

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月19日 10:29, Tiwei Bie wrote: I don't hope so. I agreed driver should track the DMA addrs or some other necessary things from the very beginning. And I also repeated the spec to emphasize that it does make sense. And I'd like to do that. What I was saying is that, to support OOO,

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月19日 10:29, Tiwei Bie wrote: I don't hope so. I agreed driver should track the DMA addrs or some other necessary things from the very beginning. And I also repeated the spec to emphasize that it does make sense. And I'd like to do that. What I was saying is that, to support OOO,

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Sat, May 19, 2018 at 09:12:30AM +0800, Jason Wang wrote: > On 2018年05月18日 22:33, Tiwei Bie wrote: > > On Fri, May 18, 2018 at 09:17:05PM +0800, Jason Wang wrote: > > > On 2018年05月18日 19:29, Tiwei Bie wrote: > > > > On Thu, May 17, 2018 at 08:01:52PM +0800, Jason Wang wrote: > > > > > On

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Sat, May 19, 2018 at 09:12:30AM +0800, Jason Wang wrote: > On 2018年05月18日 22:33, Tiwei Bie wrote: > > On Fri, May 18, 2018 at 09:17:05PM +0800, Jason Wang wrote: > > > On 2018年05月18日 19:29, Tiwei Bie wrote: > > > > On Thu, May 17, 2018 at 08:01:52PM +0800, Jason Wang wrote: > > > > > On

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月18日 22:33, Tiwei Bie wrote: On Fri, May 18, 2018 at 09:17:05PM +0800, Jason Wang wrote: On 2018年05月18日 19:29, Tiwei Bie wrote: On Thu, May 17, 2018 at 08:01:52PM +0800, Jason Wang wrote: On 2018年05月16日 22:33, Tiwei Bie wrote: On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月18日 22:33, Tiwei Bie wrote: On Fri, May 18, 2018 at 09:17:05PM +0800, Jason Wang wrote: On 2018年05月18日 19:29, Tiwei Bie wrote: On Thu, May 17, 2018 at 08:01:52PM +0800, Jason Wang wrote: On 2018年05月16日 22:33, Tiwei Bie wrote: On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Fri, May 18, 2018 at 09:17:05PM +0800, Jason Wang wrote: > On 2018年05月18日 19:29, Tiwei Bie wrote: > > On Thu, May 17, 2018 at 08:01:52PM +0800, Jason Wang wrote: > > > On 2018年05月16日 22:33, Tiwei Bie wrote: > > > > On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang wrote: > > > > > On

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Fri, May 18, 2018 at 09:17:05PM +0800, Jason Wang wrote: > On 2018年05月18日 19:29, Tiwei Bie wrote: > > On Thu, May 17, 2018 at 08:01:52PM +0800, Jason Wang wrote: > > > On 2018年05月16日 22:33, Tiwei Bie wrote: > > > > On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang wrote: > > > > > On

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月18日 19:29, Tiwei Bie wrote: On Thu, May 17, 2018 at 08:01:52PM +0800, Jason Wang wrote: On 2018年05月16日 22:33, Tiwei Bie wrote: On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang wrote: On 2018年05月16日 21:45, Tiwei Bie wrote: On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月18日 19:29, Tiwei Bie wrote: On Thu, May 17, 2018 at 08:01:52PM +0800, Jason Wang wrote: On 2018年05月16日 22:33, Tiwei Bie wrote: On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang wrote: On 2018年05月16日 21:45, Tiwei Bie wrote: On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Thu, May 17, 2018 at 08:01:52PM +0800, Jason Wang wrote: > On 2018年05月16日 22:33, Tiwei Bie wrote: > > On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang wrote: > > > On 2018年05月16日 21:45, Tiwei Bie wrote: > > > > On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang wrote: > > > > > On

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Thu, May 17, 2018 at 08:01:52PM +0800, Jason Wang wrote: > On 2018年05月16日 22:33, Tiwei Bie wrote: > > On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang wrote: > > > On 2018年05月16日 21:45, Tiwei Bie wrote: > > > > On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang wrote: > > > > > On

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月16日 22:33, Tiwei Bie wrote: On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang wrote: On 2018年05月16日 21:45, Tiwei Bie wrote: On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang wrote: On 2018年05月16日 20:39, Tiwei Bie wrote: On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月16日 22:33, Tiwei Bie wrote: On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang wrote: On 2018年05月16日 21:45, Tiwei Bie wrote: On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang wrote: On 2018年05月16日 20:39, Tiwei Bie wrote: On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang wrote: > On 2018年05月16日 21:45, Tiwei Bie wrote: > > On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang wrote: > > > On 2018年05月16日 20:39, Tiwei Bie wrote: > > > > On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang wrote: > > > > > On

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Wed, May 16, 2018 at 10:05:44PM +0800, Jason Wang wrote: > On 2018年05月16日 21:45, Tiwei Bie wrote: > > On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang wrote: > > > On 2018年05月16日 20:39, Tiwei Bie wrote: > > > > On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang wrote: > > > > > On

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月16日 21:45, Tiwei Bie wrote: On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang wrote: On 2018年05月16日 20:39, Tiwei Bie wrote: On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang wrote: On 2018年05月16日 16:37, Tiwei Bie wrote: [...] struct vring_virtqueue { @@ -116,6 +117,9

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月16日 21:45, Tiwei Bie wrote: On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang wrote: On 2018年05月16日 20:39, Tiwei Bie wrote: On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang wrote: On 2018年05月16日 16:37, Tiwei Bie wrote: [...] struct vring_virtqueue { @@ -116,6 +117,9

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang wrote: > On 2018年05月16日 20:39, Tiwei Bie wrote: > > On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang wrote: > > > On 2018年05月16日 16:37, Tiwei Bie wrote: > > [...] > > > >struct vring_virtqueue { > > > > @@ -116,6 +117,9 @@ struct

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Wed, May 16, 2018 at 08:51:43PM +0800, Jason Wang wrote: > On 2018年05月16日 20:39, Tiwei Bie wrote: > > On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang wrote: > > > On 2018年05月16日 16:37, Tiwei Bie wrote: > > [...] > > > >struct vring_virtqueue { > > > > @@ -116,6 +117,9 @@ struct

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月16日 20:39, Tiwei Bie wrote: On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang wrote: On 2018年05月16日 16:37, Tiwei Bie wrote: [...] struct vring_virtqueue { @@ -116,6 +117,9 @@ struct vring_virtqueue { /* Last written value to driver->flags in

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月16日 20:39, Tiwei Bie wrote: On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang wrote: On 2018年05月16日 16:37, Tiwei Bie wrote: [...] struct vring_virtqueue { @@ -116,6 +117,9 @@ struct vring_virtqueue { /* Last written value to driver->flags in

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang wrote: > On 2018年05月16日 16:37, Tiwei Bie wrote: [...] > > struct vring_virtqueue { > > @@ -116,6 +117,9 @@ struct vring_virtqueue { > > /* Last written value to driver->flags in > > * guest byte order.

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On Wed, May 16, 2018 at 07:50:16PM +0800, Jason Wang wrote: > On 2018年05月16日 16:37, Tiwei Bie wrote: [...] > > struct vring_virtqueue { > > @@ -116,6 +117,9 @@ struct vring_virtqueue { > > /* Last written value to driver->flags in > > * guest byte order.

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月16日 16:37, Tiwei Bie wrote: This commit introduces the basic support (without EVENT_IDX) for packed ring. Signed-off-by: Tiwei Bie --- drivers/virtio/virtio_ring.c | 491 ++- 1 file changed, 481 insertions(+), 10 deletions(-)

Re: [RFC v4 3/5] virtio_ring: add packed ring support

On 2018年05月16日 16:37, Tiwei Bie wrote: This commit introduces the basic support (without EVENT_IDX) for packed ring. Signed-off-by: Tiwei Bie --- drivers/virtio/virtio_ring.c | 491 ++- 1 file changed, 481 insertions(+), 10 deletions(-) diff --git

[RFC v4 3/5] virtio_ring: add packed ring support

This commit introduces the basic support (without EVENT_IDX) for packed ring. Signed-off-by: Tiwei Bie --- drivers/virtio/virtio_ring.c | 491 ++- 1 file changed, 481 insertions(+), 10 deletions(-) diff --git a/drivers/virtio/virtio_ring.c

[RFC v4 3/5] virtio_ring: add packed ring support

This commit introduces the basic support (without EVENT_IDX) for packed ring. Signed-off-by: Tiwei Bie --- drivers/virtio/virtio_ring.c | 491 ++- 1 file changed, 481 insertions(+), 10 deletions(-) diff --git a/drivers/virtio/virtio_ring.c