ops). This allows the future drivers
like virtio-mdev to implement its own device specific ops.
Signed-off-by: Jason Wang
---
drivers/gpu/drm/i915/gvt/kvmgt.c | 14 +++---
drivers/s390/cio/vfio_ccw_ops.c | 14 +++---
drivers/s390/crypto/vfio_ap_ops.c | 10 +++--
drivers/vfio/mdev/vfio_mdev.c
.
So this patch add id_table to mdev_driver and id for mdev parent, and
implement the match method for mdev bus.
[1] https://lkml.org/lkml/2019/9/10/135
Signed-off-by: Jason Wang
---
drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +-
drivers/s390/cio/vfio_ccw_ops.c | 2 +-
drivers/s390/crypto/vfio_ap_
move vfio callbacks there
Sent for early reivew, compile test only!
Thanks
[1] https://lkml.org/lkml/2019/9/10/135
Jason Wang (2):
mdev: device id support
mdev: introduce device specific ops
drivers/gpu/drm/i915/gvt/kvmgt.c | 16 ---
drivers/s390/cio/vfio_ccw_ops.c | 16
On 2019/9/17 下午3:55, Tian, Kevin wrote:
From: Jason Wang
Sent: Thursday, September 12, 2019 5:40 PM
Mdev bus only support vfio driver right now, so it doesn't implement
match method. But in the future, we may add drivers other than vfio,
one example is virtio-mdev[1] driver. This means we
On 2019/9/17 下午4:09, Tian, Kevin wrote:
From: Jason Wang
Sent: Thursday, September 12, 2019 5:40 PM
Currently, except for the crate and remove. The rest fields of
mdev_parent_ops is just designed for vfio-mdev driver and may not help
for kernel mdev driver. So follow the device id support by
On 2019/9/17 下午8:07, Cornelia Huck wrote:
On Thu, 12 Sep 2019 17:40:11 +0800
Jason Wang wrote:
Mdev bus only support vfio driver right now, so it doesn't implement
match method. But in the future, we may add drivers other than vfio,
one example is virtio-mdev[1] driver. This means we ne
On 2019/9/17 下午8:42, Cornelia Huck wrote:
On Thu, 12 Sep 2019 17:40:12 +0800
Jason Wang wrote:
Currently, except for the crate and remove. The rest fields of
mdev_parent_ops is just designed for vfio-mdev driver and may not help
for kernel mdev driver. So follow the device id support by
On 2019/9/18 上午10:57, Tian, Kevin wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Tuesday, September 17, 2019 6:17 PM
On 2019/9/17 下午4:09, Tian, Kevin wrote:
From: Jason Wang
Sent: Thursday, September 12, 2019 5:40 PM
Currently, except for the crate and remove. The rest fields of
part
of UAPI any more
- use GFP_ATOMIC in mvnet sample device and other tweaks
- set_vring_base/get_vring_base support for mvnet device
Jason Wang (6):
mdev: class id support
mdev: introduce device specific ops
mdev: introduce virtio device and its device ops
virtio: introudce a mdev
ectly.
So this patch add id_table to mdev_driver and id for mdev parent, and
implement the match method for mdev bus.
Signed-off-by: Jason Wang
---
Documentation/driver-api/vfio-mediated-device.rst | 7 +--
drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +-
drivers/s390/cio/vfio_ccw_
ops). This allows the future drivers
like virtio-mdev to implement its own device specific ops.
Signed-off-by: Jason Wang
---
.../driver-api/vfio-mediated-device.rst | 4 +-
drivers/gpu/drm/i915/gvt/kvmgt.c | 15 +++---
drivers/s390/cio/vfio_ccw_ops.c | 15
This patch implements basic support for mdev driver that support
virtio transport for kernel driver.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/mdev_core.c | 7 ++
include/linux/mdev.h | 3 +
include/linux/virtio_mdev.h | 141 ++
3 files
device with
mdev based config ops. This means, unlike the exist hardware
transport, this is a software transport between mdev driver and mdev
device. The transport was implemented through device specific ops
which is a part of mdev_parent_ops now.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev
more work for userspace VFIO based vhost-mdev driver to work. E.g
through notifier, it will be addressed in the future.
Signed-off-by: Jason Wang
---
samples/Kconfig| 7 +
samples/vfio-mdev/Makefile | 1 +
samples/vfio-mdev/mvnet.c | 688 +
3
We want to copy from iov to buf, so the direction was wrong.
Signed-off-by: Jason Wang
---
drivers/vhost/vringh.c | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index 08ad0d1f0476..a0a2d74967ef 100644
--- a/drivers
On 2019/9/20 下午4:20, Jason Wang wrote:
Hi all:
There are hardware that can do virtio datapath offloading while having
its own control path. This path tries to implement a mdev based
unified API to support using kernel virtio driver to drive those
devices. This is done by introducing a new mdev
- use device_ops to implement the transport API, then it's not a part
of UAPI any more
- use GFP_ATOMIC in mvnet sample device and other tweaks
- set_vring_base/get_vring_base support for mvnet device
Jason Wang (6):
mdev: class id support
mdev: introduce device specific ops
mdev: in
ectly.
So this patch adds id_table to mdev_driver and class_id for mdev
parent with the match method for mdev bus.
Signed-off-by: Jason Wang
---
Documentation/driver-api/vfio-mediated-device.rst | 7 +--
drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +-
drivers/s390/cio/vfio_ccw_
ops (e.g vfio ops). This allows the
future drivers like virtio-mdev to implement its own device specific
ops.
Signed-off-by: Jason Wang
---
.../driver-api/vfio-mediated-device.rst | 4 +-
MAINTAINERS | 1 +
drivers/gpu/drm/i915/gvt/kvmgt.c
This patch implements basic support for mdev driver that supports
virtio transport for kernel virtio driver.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/mdev_core.c | 7 ++
include/linux/mdev.h | 4 +
include/linux/virtio_mdev.h | 144 ++
3
device with
mdev based config ops. This means it is a software transport between
mdev driver and mdev device. The transport was implemented through
device specific opswhich is a part of mdev_parent_ops now.
Signed-off-by: Jason Wang
---
MAINTAINERS | 1 +
drivers/vfio/mdev
'virtio' type is supported right now. I plan to add 'vhost' type
on top which requires some virtual IOMMU in this sample driver.
Signed-off-by: Jason Wang
---
MAINTAINERS| 1 +
samples/Kconfig| 7 +
samples/vfio-mdev/Makefile | 1 +
sampl
We want to copy from iov to buf, so the direction was wrong.
Signed-off-by: Jason Wang
---
drivers/vhost/vringh.c | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index 08ad0d1f0476..a0a2d74967ef 100644
--- a/drivers
On 2019/9/24 上午12:05, Alex Williamson wrote:
> On Mon, 23 Sep 2019 21:03:26 +0800
> Jason Wang wrote:
>
>> Mdev bus only supports vfio driver right now, so it doesn't implement
>> match method. But in the future, we may add drivers other than vfio,
>> one exampl
On 2019/9/24 上午4:58, Parav Pandit wrote:
> Hi Jason,
>
>> -Original Message-----
>> From: Jason Wang
>> Sent: Monday, September 23, 2019 8:03 AM
>> To: k...@vger.kernel.org; linux-s...@vger.kernel.org; linux-
>> ker...@vger.kernel.org; dri-de..
On 2019/9/24 上午5:02, Parav Pandit wrote:
> Hi Jason,
>
>
>> -Original Message-
>> From: Jason Wang
>> Sent: Monday, September 23, 2019 8:03 AM
>> To: k...@vger.kernel.org; linux-s...@vger.kernel.org; linux-
>> ker...@vger.kernel.org; dri-d
-20190920]
>> [if your patch is applied to the wrong git tree, please drop us a note to
>> help
>> improve the system. BTW, we also suggest to use '--base' option to specify
>> the
>> base tree in git format-patch, please see
>> https://stackoverflow.
On 2019/9/24 上午6:59, Parav Pandit wrote:
>
>> -Original Message-
>> From: Jason Wang
>> Sent: Monday, September 23, 2019 8:03 AM
>> To: k...@vger.kernel.org; linux-s...@vger.kernel.org; linux-
>> ker...@vger.kernel.org; dri-de...@l
On 2019/9/24 上午6:28, Parav Pandit wrote:
>
>> -Original Message-
>> From: Jason Wang
>> Sent: Monday, September 23, 2019 8:03 AM
>> To: k...@vger.kernel.org; linux-s...@vger.kernel.org; linux-
>> ker...@vger.kernel.org; dri-de...@l
We want to copy from iov to buf, so the direction was wrong.
Signed-off-by: Jason Wang
---
drivers/vhost/vringh.c | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index 08ad0d1f0476..a0a2d74967ef 100644
--- a/drivers
(device_ops)
- split device_ops into seperate headers
- drop the mdev_set_dma_ops()
- use device_ops to implement the transport API, then it's not a part
of UAPI any more
- use GFP_ATOMIC in mvnet sample device and other tweaks
- set_vring_base/get_vring_base support for mvnet device
Jason Wan
ectly.
So this patch adds id_table to mdev_driver and class_id for mdev
parent with the match method for mdev bus.
Signed-off-by: Jason Wang
---
Documentation/driver-api/vfio-mediated-device.rst | 3 +++
drivers/gpu/drm/i915/gvt/kvmgt.c | 1 +
drivers/s390/cio/vfio_ccw_
This patch adds bus uevent support for mdev bus in order to allow
cooperation with userspace.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/mdev_driver.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/vfio/mdev/mdev_driver.c b/drivers/vfio/mdev/mdev_driver.c
index
Add support to parse mdev class id table.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/vfio_mdev.c | 2 ++
scripts/mod/devicetable-offsets.c | 3 +++
scripts/mod/file2alias.c | 10 ++
3 files changed, 15 insertions(+)
diff --git a/drivers/vfio/mdev/vfio_mdev.c b
be used by
vfio-mdev and virtio-mdev.
Signed-off-by: Jason Wang
---
.../driver-api/vfio-mediated-device.rst | 4 +-
MAINTAINERS | 1 +
drivers/gpu/drm/i915/gvt/kvmgt.c | 17 +++---
drivers/s390/cio/vfio_ccw_ops.c | 17
This patch implements basic support for mdev driver that supports
virtio transport for kernel virtio driver.
Signed-off-by: Jason Wang
---
include/linux/mdev.h| 2 +
include/linux/virtio_mdev.h | 145
2 files changed, 147 insertions(+)
create mode
device with
mdev based config ops. This means it is a software transport between
mdev driver and mdev device. The transport was implemented through
device specific opswhich is a part of mdev_parent_ops now.
Signed-off-by: Jason Wang
---
drivers/virtio/Kconfig | 7 +
drivers/virtio
'virtio' type is supported right now. I plan to add 'vhost' type
on top which requires some virtual IOMMU implemented in this sample
driver.
Signed-off-by: Jason Wang
---
MAINTAINERS| 1 +
samples/Kconfig| 7 +
samples/vfio-mdev/Makefile | 1
On 2019/9/24 下午10:04, Alex Williamson wrote:
> On Mon, 23 Sep 2019 12:00:41 -0400
> "Michael S. Tsirkin" wrote:
>
>> On Mon, Sep 23, 2019 at 09:45:59AM -0600, Alex Williamson wrote:
>>> On Mon, 23 Sep 2019 21:03:30 +0800
>>> Jason Wang wrote:
>>
On 2019/9/25 上午7:06, Alex Williamson wrote:
> On Tue, 24 Sep 2019 21:53:26 +0800
> Jason Wang wrote:
>
>> Mdev bus only supports vfio driver right now, so it doesn't implement
>> match method. But in the future, we may add drivers other than vfio,
>> the first d
On 2019/9/25 上午7:06, Alex Williamson wrote:
> On Tue, 24 Sep 2019 21:53:29 +0800
> Jason Wang wrote:
>
>> Currently, except for the create and remove, the rest of
>> mdev_parent_ops is designed for vfio-mdev driver only and may not help
>> for kernel mdev driver. With
On 2019/9/25 上午7:06, Alex Williamson wrote:
> On Tue, 24 Sep 2019 21:53:30 +0800
> Jason Wang wrote:
>
>> This patch implements basic support for mdev driver that supports
>> virtio transport for kernel virtio driver.
>>
>> Signed-off-by: Jason Wang
>> --
On 2019/9/25 下午4:28, Tian, Kevin wrote:
>> From: Jason Wang
>> Sent: Tuesday, September 24, 2019 9:53 PM
>>
>> Mdev bus only supports vfio driver right now, so it doesn't implement
>> match method. But in the future, we may add drivers other than vfio,
>&
On 2019/9/25 下午4:24, Tian, Kevin wrote:
>> From: Jason Wang [mailto:jasow...@redhat.com]
>> Sent: Tuesday, September 24, 2019 9:53 PM
>>
>> Hi all:
>>
>> There are hardware that can do virtio datapath offloading while having
>> its own control path.
On 2019/9/25 下午5:09, Tian, Kevin wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Tuesday, September 24, 2019 9:54 PM
This patch implements basic support for mdev driver that supports
virtio transport for kernel virtio driver.
Signed-off-by: Jason Wang
---
include/linux/mdev.h
The double `wait' is duplicated in line 974, remove one.
Signed-off-by: Jason Wang
---
drivers/gpu/drm/i915/selftests/i915_request.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c
b/drivers/gpu/drm/i915/selftests/i915_requ
The semicolon after a code block end symbol `}' is unneeded, remove
it.
Signed-off-by: Jason Wang
---
drivers/gpu/drm/i915/gt/intel_migrate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_migrate.c
b/drivers/gpu/drm/i915/gt/intel_migr
Fix the double `wait' typo in comment.
Signed-off-by: Jason Wang
---
drivers/gpu/drm/i915/selftests/i915_request.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c
b/drivers/gpu/drm/i915/selftests/i915_request.c
The semicolon after the `}' in line 648 is unneeded.
Signed-off-by: Jason Wang
---
drivers/gpu/drm/i915/gt/intel_migrate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_migrate.c
b/drivers/gpu/drm/i915/gt/intel_migrate.c
index 2c35324
On 2019/9/25 下午9:21, Michael S. Tsirkin wrote:
On Wed, Sep 25, 2019 at 08:45:21PM +0800, Jason Wang wrote:
On 2019/9/25 下午5:09, Tian, Kevin wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Tuesday, September 24, 2019 9:54 PM
This patch implements basic support for mdev driver that
On 2019/9/26 上午8:48, Tian, Kevin wrote:
+};
I'm not sure how stable above ops are.
It's the kernel internal API, so there's no strict requirement for this.
We will export a version value for userspace for compatibility.
Does it make sense if defining
just two callbacks here, e.g. vq_ctrl an
On 2019/9/26 下午4:21, Michael S. Tsirkin wrote:
On Thu, Sep 26, 2019 at 12:04:46PM +0800, Jason Wang wrote:
I'm not sure how stable above ops are.
It's the kernel internal API, so there's no strict requirement for this. We
will export a version value for userspace for compat
On 2019/9/25 下午10:11, Rob Miller wrote:
> > mdev_set_class_id(mdev, MDEV_ID_VFIO);
> > + mdev_set_dev_ops(mdev, &intel_vfio_vgpu_dev_ops);
>
> This seems rather unrefined. We're registering interdependent data in
> separate calls. All drivers need to make both of these calls. I'm not
>
On 2019/9/25 上午7:06, Alex Williamson wrote:
On Tue, 24 Sep 2019 21:53:30 +0800
Jason Wang wrote:
This patch implements basic support for mdev driver that supports
virtio transport for kernel virtio driver.
Signed-off-by: Jason Wang
---
include/linux/mdev.h| 2 +
include/linux
On 2019/10/1 上午5:36, Alex Williamson wrote:
On Fri, 27 Sep 2019 16:25:13 +
Parav Pandit wrote:
Hi Alex,
-Original Message-
From: Alex Williamson
Sent: Tuesday, September 24, 2019 6:07 PM
To: Jason Wang
Cc: k...@vger.kernel.org; linux-s...@vger.kernel.org; linux-
ker
On 2019/9/25 上午7:06, Alex Williamson wrote:
On Tue, 24 Sep 2019 21:53:30 +0800
Jason Wang wrote:
This patch implements basic support for mdev driver that supports
virtio transport for kernel virtio driver.
Signed-off-by: Jason Wang
---
include/linux/mdev.h| 2 +
include/linux
ice_ops to implement the transport API, then it's not a part
of UAPI any more
- use GFP_ATOMIC in mvnet sample device and other tweaks
- set_vring_base/get_vring_base support for mvnet device
Jason Wang (7):
mdev: class id support
mdev: bus uevent support
modpost: add support for mdev c
ectly.
So this patch adds id_table to mdev_driver and class_id for mdev
device with the match method for mdev bus.
Signed-off-by: Jason Wang
---
Documentation/driver-api/vfio-mediated-device.rst | 7 ++-
drivers/gpu/drm/i915/gvt/kvmgt.c | 1 +
drivers/s390/cio/vfio_ccw_
This patch adds bus uevent support for mdev bus in order to allow
cooperation with userspace.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/mdev_driver.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/vfio/mdev/mdev_driver.c b/drivers/vfio/mdev/mdev_driver.c
index
Add support to parse mdev class id table.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/vfio_mdev.c | 2 ++
scripts/mod/devicetable-offsets.c | 3 +++
scripts/mod/file2alias.c | 10 ++
3 files changed, 15 insertions(+)
diff --git a/drivers/vfio/mdev/vfio_mdev.c b
This patch implements basic support for mdev driver that supports
virtio transport for kernel virtio driver.
Signed-off-by: Jason Wang
---
include/linux/mdev.h| 1 +
include/linux/virtio_mdev.h | 148
2 files changed, 149 insertions(+)
create mode
be used by
vfio-mdev and virtio-mdev.
Signed-off-by: Jason Wang
---
.../driver-api/vfio-mediated-device.rst | 22 +---
MAINTAINERS | 1 +
drivers/gpu/drm/i915/gvt/kvmgt.c | 18 ---
drivers/s390/cio/vfio_ccw_ops.c | 18
device with
mdev based config ops. This means it is a software transport between
mdev driver and mdev device. The transport was implemented through
device specific opswhich is a part of mdev_parent_ops now.
Signed-off-by: Jason Wang
---
drivers/virtio/Kconfig | 7 +
drivers/virtio
'virtio' type is supported right now. I plan to add 'vhost' type
on top which requires some virtual IOMMU implemented in this sample
driver.
Signed-off-by: Jason Wang
---
MAINTAINERS| 1 +
samples/Kconfig| 7 +
samples/vfio-mdev/Makefile | 1
On 2019/10/15 上午1:23, Stefan Hajnoczi wrote:
On Fri, Oct 11, 2019 at 04:15:55PM +0800, Jason Wang wrote:
+ * @set_vq_cb: Set the interrut calback function for
s/interrut/interrupt/
s/calback/callback/
Fixed.
Thanks
___
Intel
On 2019/10/15 上午1:39, Stefan Hajnoczi wrote:
On Fri, Oct 11, 2019 at 04:15:56PM +0800, Jason Wang wrote:
+struct virtio_mdev_device {
+ struct virtio_device vdev;
+ struct mdev_device *mdev;
+ unsigned long version;
+
+ struct virtqueue **vqs;
+ /* The lock to
On 2019/10/15 上午1:49, Stefan Hajnoczi wrote:
On Fri, Oct 11, 2019 at 04:15:50PM +0800, Jason Wang wrote:
There are hardware that can do virtio datapath offloading while having
its own control path. This path tries to implement a mdev based
unified API to support using kernel virtio driver to
On 2019/10/15 下午6:26, Cornelia Huck wrote:
On Fri, 11 Oct 2019 16:15:51 +0800
Jason Wang wrote:
Mdev bus only supports vfio driver right now, so it doesn't implement
match method. But in the future, we may add drivers other than vfio,
the first driver could be virtio-mdev. This means we
On 2019/10/15 下午6:27, Cornelia Huck wrote:
On Fri, 11 Oct 2019 16:15:52 +0800
Jason Wang wrote:
This patch adds bus uevent support for mdev bus in order to allow
cooperation with userspace.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/mdev_driver.c | 8
1 file changed, 8
On 2019/10/15 下午6:41, Cornelia Huck wrote:
On Fri, 11 Oct 2019 16:15:54 +0800
Jason Wang wrote:
Currently, except for the create and remove, the rest of
mdev_parent_ops is designed for vfio-mdev driver only and may not help
for kernel mdev driver. With the help of class id, this patch
On 2019/10/16 上午12:38, Alex Williamson wrote:
On Fri, 11 Oct 2019 16:15:51 +0800
Jason Wang wrote:
diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
index b558d4cfd082..724e9b9841d8 100644
--- a/drivers/vfio/mdev/mdev_core.c
+++ b/drivers/vfio/mdev/mdev_core.c
On 2019/10/16 下午12:57, Parav Pandit wrote:
-Original Message-
From: Jason Wang
Sent: Friday, October 11, 2019 3:16 AM
To: k...@vger.kernel.org; linux-s...@vger.kernel.org; linux-
ker...@vger.kernel.org; dri-de...@lists.freedesktop.org; intel-
g...@lists.freedesktop.org; intel-gvt
On 2019/10/15 下午10:37, Stefan Hajnoczi wrote:
On Tue, Oct 15, 2019 at 11:37:17AM +0800, Jason Wang wrote:
On 2019/10/15 上午1:49, Stefan Hajnoczi wrote:
On Fri, Oct 11, 2019 at 04:15:50PM +0800, Jason Wang wrote:
There are hardware that can do virtio datapath offloading while having
its own
On 2019/10/16 下午12:57, Parav Pandit wrote:
+static struct mdev_class_id id_table[] = {
static const
+ { MDEV_ID_VFIO },
I guess you don't need extra braces for each entry.
Since this enum represents MDEV class id, it better to name it as
MDEV_CLASS_ID_VFIO.
(Similar to PCI_VENDOR_ID,
On 2019/10/17 上午12:53, Alex Williamson wrote:
On Wed, 16 Oct 2019 15:31:25 +
Parav Pandit wrote:
-Original Message-
From: Cornelia Huck
Sent: Wednesday, October 16, 2019 3:53 AM
To: Parav Pandit
Cc: Alex Williamson ; Jason Wang
; k...@vger.kernel.org; linux-s...@vger.kernel.org
On 2019/10/17 下午4:45, Cornelia Huck wrote:
On Thu, 17 Oct 2019 16:30:43 +0800
Jason Wang wrote:
On 2019/10/17 上午12:53, Alex Williamson wrote:
Yet another suggestion: have the class id derive from the function
you use to set up the ops.
void mdev_set_vfio_ops(struct mdev_device *mdev, const
lement the transport API, then it's not a part
of UAPI any more
- use GFP_ATOMIC in mvnet sample device and other tweaks
- set_vring_base/get_vring_base support for mvnet device
Jason Wang (6):
mdev: class id support
modpost: add support for mdev class id
mdev: introduce device specific
ectly.
So this patch adds id_table to mdev_driver and class_id for mdev
device with the match method for mdev bus.
Signed-off-by: Jason Wang
---
.../driver-api/vfio-mediated-device.rst | 7 +-
drivers/gpu/drm/i915/gvt/kvmgt.c | 1 +
drivers/s390/cio/vfio_ccw_
be used by
vfio-mdev and virtio-mdev.
Signed-off-by: Jason Wang
---
.../driver-api/vfio-mediated-device.rst | 25 +
MAINTAINERS | 1 +
drivers/gpu/drm/i915/gvt/kvmgt.c | 18 ---
drivers/s390/cio/vfio_ccw_ops.c | 18
Add support to parse mdev class id table.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/vfio_mdev.c | 2 ++
scripts/mod/devicetable-offsets.c | 3 +++
scripts/mod/file2alias.c | 10 ++
3 files changed, 15 insertions(+)
diff --git a/drivers/vfio/mdev/vfio_mdev.c b
device with
mdev based config ops. This means it is a software transport between
mdev driver and mdev device. The transport was implemented through
device specific ops which is a part of mdev_parent_ops now.
Signed-off-by: Jason Wang
---
drivers/virtio/Kconfig | 7 +
drivers/virtio
This patch implements basic support for mdev driver that supports
virtio transport for kernel virtio driver.
Signed-off-by: Jason Wang
---
drivers/vfio/mdev/mdev_core.c | 12 +++
include/linux/mdev.h | 4 +
include/linux/virtio_mdev.h | 151 ++
3
'virtio' type is supported right now. I plan to add 'vhost' type
on top which requires some virtual IOMMU implemented in this sample
driver.
Signed-off-by: Jason Wang
---
MAINTAINERS| 1 +
samples/Kconfig| 7 +
samples/vfio-mdev/Makefile | 1
e device_ops to implement the transport API, then it's not a part
of UAPI any more
- use GFP_ATOMIC in mvnet sample device and other tweaks
- set_vring_base/get_vring_base support for mvnet device
Jason Wang (6):
mdev: make mdev bus agnostic
mdev: split out VFIO bus specific parent ops
place the VFIO specific callbacks there
like:
struct mdev_vfio {
struct mdev_device mdev;
const struct mdev_vfio_ops *ops;
};
Helpers for setting and getting the ops were introduced to support
mdev vfio device to set ops and vfio mdev driver to use the ops.
Signed-off-by: Jason Wang
mdev_vfio module
- require to specify the type of bus when registering mdev device and
mdev driver
With those modifications mdev become a generic module that could be
used by multiple types of virtual buses and devices.
Signed-off-by: Jason Wang
---
.../driver-api/vfio-mediated-device.rst
Mdev now is nothing VFIO specific, let's move it to upper
directory.
Signed-off-by: Jason Wang
---
MAINTAINERS | 7 +--
drivers/Kconfig | 2 ++
drivers/Makefile | 1 +
drivers/mdev/Kc
'virtio' type is supported right now. I plan to add 'vhost' type
on top which requires some virtual IOMMU implemented in this sample
driver.
Signed-off-by: Jason Wang
---
MAINTAINERS| 1 +
samples/Kconfig| 10 +
sample
device with
mdev based config ops. This means it is a software transport between
mdev driver and mdev device. The transport was implemented through
bus_ops of mdev parent.
Signed-off-by: Jason Wang
---
drivers/virtio/Kconfig | 13 ++
drivers/virtio/Makefile | 1 +
drivers/virtio
This patch implements a mediated virtio bus over mdev framework. This
will be used by the future virtio-mdev and vhost-mdev on top to allow
driver from either userspace or kernel to control the device which is
capable of offloading virtio datapath.
Signed-off-by: Jason Wang
---
MAINTAINERS
On 2019/11/18 下午2:16, Jason Wang wrote:
Hi all:
There are hardwares that can do virtio datapath offloading while
having its own control path. This path tries to implement a mdev based
unified API to support using kernel virtio driver to drive those
devices. This is done by introducing a new
On 2019/11/18 下午6:44, Michael S. Tsirkin wrote:
+static const struct mdev_virtio_class_id virtio_id_table[] = {
+ { MDEV_VIRTIO_CLASS_ID_VIRTIO },
+ { 0 },
+};
+
Do we still need the class ID? It's a virtio mdev bus,
do we need a virtio class as well?
If we want to have auto matc
eperate headers
- drop the mdev_set_dma_ops()
- use device_ops to implement the transport API, then it's not a part
of UAPI any more
- use GFP_ATOMIC in mvnet sample device and other tweaks
- set_vring_base/get_vring_base support for mvnet device
Jason Wang (6):
mdev: make mdev bus agn
mdev_vfio module
- require to specify the type of bus when registering mdev device and
mdev driver
With those modifications mdev become a generic module that could be
used by multiple types of virtual buses and devices.
Signed-off-by: Jason Wang
---
.../driver-api/vfio-mediated-device.rst
place the VFIO specific callbacks there
like:
struct mdev_vfio {
struct mdev_device mdev;
const struct mdev_vfio_ops *ops;
};
Helpers for setting and getting the ops were introduced to support
mdev vfio device to set ops and vfio mdev driver to use the ops.
Signed-off-by: Jason Wang
Mdev now is nothing VFIO specific, let's move it to upper
directory.
Signed-off-by: Jason Wang
---
MAINTAINERS | 7 +--
drivers/Kconfig | 2 ++
drivers/Makefile | 1 +
drivers/mdev/Kc
This patch implements a mediated virtio bus over mdev framework. This
will be used by the future virtio-mdev and vhost-mdev on top to allow
driver from either userspace or kernel to control the device which is
capable of offloading virtio datapath.
Signed-off-by: Jason Wang
---
MAINTAINERS
device with
mdev based config ops. This means it is a software transport between
mdev driver and mdev device. The transport was implemented through
bus_ops of mdev parent.
Signed-off-by: Jason Wang
---
drivers/virtio/Kconfig | 13 ++
drivers/virtio/Makefile | 1 +
drivers/virtio
'virtio' type is supported right now. I plan to add 'vhost' type
on top which requires some virtual IOMMU implemented in this sample
driver.
Signed-off-by: Jason Wang
---
MAINTAINERS| 1 +
samples/Kconfig| 10 +
sample
On 2019/11/18 下午9:41, Jason Gunthorpe wrote:
On Mon, Nov 18, 2019 at 06:59:21PM +0800, Jason Wang wrote:
+struct bus_type mdev_virtio_bus_type;
+
+struct mdev_virtio_device {
+ struct mdev_device mdev;
+ const struct mdev_virtio_ops *ops;
+ u16 class_id;
+};
This seems to
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