On 31/10/2023 10:09, Michael S. Tsirkin wrote:
On Sun, Oct 29, 2023 at 05:59:49PM +0200, Yishai Hadas wrote:
Introduce APIs to execute legacy IO admin commands.
It includes: io_legacy_read/write for both common and the device
registers, io_legacy_notify_info.
In addition, exposing an API to
On 30/10/2023 17:57, Michael S. Tsirkin wrote:
On Mon, Oct 30, 2023 at 05:27:50PM +0200, Yishai Hadas wrote:
On 29/10/2023 22:17, Michael S. Tsirkin wrote:
On Sun, Oct 29, 2023 at 05:59:48PM +0200, Yishai Hadas wrote:
Initialize the supported admin commands upon activating the admin queue.
On 29/10/2023 22:17, Michael S. Tsirkin wrote:
On Sun, Oct 29, 2023 at 05:59:48PM +0200, Yishai Hadas wrote:
Initialize the supported admin commands upon activating the admin queue.
The supported commands are saved as part of the admin queue context, it
will be used by the next patches from
On 26/10/2023 20:55, Alex Williamson wrote:
On Thu, 26 Oct 2023 15:08:12 +0300
Yishai Hadas wrote:
On 25/10/2023 22:13, Alex Williamson wrote:
On Wed, 25 Oct 2023 17:35:51 +0300
Yishai Hadas wrote:
On 24/10/2023 22:57, Alex Williamson wrote:
On Tue, 17 Oct 2023 16:42:17 +0300
Yishai
Expose vfio_pci_core_setup_barmap() to be used by drivers.
This will let drivers to mmap a BAR and re-use it from both vfio and the
driver when it's applicable.
This API will be used in the next patches by the vfio/virtio coming
driver.
Signed-off-by: Yishai Hadas
---
Introduce a vfio driver over virtio devices to support the legacy
interface functionality for VFs.
Background, from the virtio spec [1].
In some systems, there is a need to support a virtio legacy driver with
a device that does
Introduce APIs to execute legacy IO admin commands.
It includes: io_legacy_read/write for both common and the device
registers, io_legacy_notify_info.
In addition, exposing an API to check whether the legacy IO commands are
supported. (i.e. virtio_pci_admin_has_legacy_io()).
Those APIs will be
From: Feng Liu
Introduces admin commands, as follow:
The "list query" command can be used by the driver to query the
set of admin commands supported by the virtio device.
The "list use" command is used to inform the virtio device which
admin commands the driver will use.
The "legacy common cfg
Expose vfio_pci_iowrite/read##size() to let it be used by drivers.
This functionality is needed to enable direct access to some physical
BAR of the device with the proper locks/checks in place.
The next patches from this series will use this functionality on a data
path flow when a direct access
Initialize the supported admin commands upon activating the admin queue.
The supported commands are saved as part of the admin queue context, it
will be used by the next patches from this series.
Note:
As we don't want to let upper layers to execute admin commands before
that this initialization
From: Feng Liu
Add support for sending admin command through admin virtqueue interface.
Abort any inflight admin commands once device reset completes.
To enforce the below statement from the specification [1], the admin
queue is activated for the upper layer users only post of setting status
to
From: Feng Liu
Introduce VIRTIO_F_ADMIN_VQ which is used for administration virtqueue
support.
Signed-off-by: Feng Liu
Reviewed-by: Parav Pandit
Reviewed-by: Jiri Pirko
Signed-off-by: Yishai Hadas
---
include/uapi/linux/virtio_config.h | 8 +++-
1 file changed, 7 insertions(+), 1
From: Feng Liu
Introduce support for the admin virtqueue. By negotiating
VIRTIO_F_ADMIN_VQ feature, driver detects capability and creates one
administration virtqueue. Administration virtqueue implementation in
virtio pci generic layer, enables multiple types of upper layer
drivers such as vfio,
This series introduce a vfio driver over virtio devices to support the
legacy interface functionality for VFs.
Background, from the virtio spec [1].
In some systems, there is a need to support a virtio legacy driver with
a
On 25/10/2023 22:13, Alex Williamson wrote:
On Wed, 25 Oct 2023 17:35:51 +0300
Yishai Hadas wrote:
On 24/10/2023 22:57, Alex Williamson wrote:
On Tue, 17 Oct 2023 16:42:17 +0300
Yishai Hadas wrote:
Introduce a vfio driver over virtio devices to support the legacy
interface functionality
On 24/10/2023 22:57, Alex Williamson wrote:
On Tue, 17 Oct 2023 16:42:17 +0300
Yishai Hadas wrote:
Introduce a vfio driver over virtio devices to support the legacy
interface functionality for VFs.
Background, from the virtio spec [1].
On 25/10/2023 16:44, Michael S. Tsirkin wrote:
On Wed, Oct 25, 2023 at 04:00:43PM +0300, Yishai Hadas wrote:
On 25/10/2023 13:17, Michael S. Tsirkin wrote:
On Wed, Oct 25, 2023 at 12:18:32PM +0300, Yishai Hadas wrote:
On 25/10/2023 0:01, Michael S. Tsirkin wrote:
On Tue, Oct 17, 2023
On 25/10/2023 13:17, Michael S. Tsirkin wrote:
On Wed, Oct 25, 2023 at 12:18:32PM +0300, Yishai Hadas wrote:
On 25/10/2023 0:01, Michael S. Tsirkin wrote:
On Tue, Oct 17, 2023 at 04:42:14PM +0300, Yishai Hadas wrote:
Introduce APIs to execute legacy IO admin commands.
Re sending as previous reply was by mistake not in a text format.
On 25/10/2023 0:01, Michael S. Tsirkin wrote:
On Tue, Oct 17, 2023 at 04:42:14PM +0300, Yishai Hadas wrote:
Introduce APIs to execute legacy IO admin commands.
It includes: list_query/use, io_legacy_read/write,
On 25/10/2023 0:01, Michael S. Tsirkin wrote:
On Tue, Oct 17, 2023 at 04:42:14PM +0300, Yishai Hadas wrote:
Introduce APIs to execute legacy IO admin commands.
It includes: list_query/use, io_legacy_read/write,
io_legacy_notify_info.
Those APIs will be used by the next patches from this
On 17/10/2023 16:42, Yishai Hadas wrote:
This series introduce a vfio driver over virtio devices to support the
legacy interface functionality for VFs.
Background, from the virtio spec [1].
In some systems, there is a need to
On 17/10/2023 23:24, Alex Williamson wrote:
On Tue, 17 Oct 2023 16:42:17 +0300
Yishai Hadas wrote:
+static int virtiovf_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *id)
+{
+ const struct vfio_device_ops *ops = _acc_vfio_pci_ops;
+ struct
Expose vfio_pci_iowrite/read##size() to let it be used by drivers.
This functionality is needed to enable direct access to some physical
BAR of the device with the proper locks/checks in place.
The next patches from this series will use this functionality on a data
path flow when a direct access
Introduce a vfio driver over virtio devices to support the legacy
interface functionality for VFs.
Background, from the virtio spec [1].
In some systems, there is a need to support a virtio legacy driver with
a device that does
Expose vfio_pci_core_setup_barmap() to be used by drivers.
This will let drivers to mmap a BAR and re-use it from both vfio and the
driver when it's applicable.
This API will be used in the next patches by the vfio/virtio coming
driver.
Signed-off-by: Yishai Hadas
---
Introduce APIs to execute legacy IO admin commands.
It includes: list_query/use, io_legacy_read/write,
io_legacy_notify_info.
Those APIs will be used by the next patches from this series.
Signed-off-by: Yishai Hadas
---
drivers/virtio/virtio_pci_common.c | 11 ++
From: Feng Liu
Introduces admin commands, as follow:
The "list query" command can be used by the driver to query the
set of admin commands supported by the virtio device.
The "list use" command is used to inform the virtio device which
admin commands the driver will use.
The "legacy common cfg
From: Feng Liu
Introduce support for the admin virtqueue. By negotiating
VIRTIO_F_ADMIN_VQ feature, driver detects capability and creates one
administration virtqueue. Administration virtqueue implementation in
virtio pci generic layer, enables multiple types of upper layer
drivers such as vfio,
From: Feng Liu
Add support for sending admin command through admin virtqueue interface.
Abort any inflight admin commands once device reset completes.
To enforce the below statement from the specification [1], the admin
queue is activated for the upper layer users only post of setting status
to
From: Feng Liu
Currently vp_modern_probe() missed out to map config space structure
starting from notify_data offset. Due to this when such structure
elements are accessed it can result in an error.
Fix it by considering the minimum size of what device has offered and
what driver will access.
From: Feng Liu
Introduce VIRTIO_F_ADMIN_VQ which is used for administration virtqueue
support.
Signed-off-by: Feng Liu
Reviewed-by: Parav Pandit
Reviewed-by: Jiri Pirko
Signed-off-by: Yishai Hadas
---
include/uapi/linux/virtio_config.h | 8 +++-
1 file changed, 7 insertions(+), 1
This series introduce a vfio driver over virtio devices to support the
legacy interface functionality for VFs.
Background, from the virtio spec [1].
In some systems, there is a need to support a virtio legacy driver with
a
On 11/10/2023 12:03, Michael S. Tsirkin wrote:
On Wed, Oct 11, 2023 at 11:58:11AM +0300, Yishai Hadas wrote:
On 11/10/2023 11:02, Michael S. Tsirkin wrote:
On Wed, Oct 11, 2023 at 10:44:49AM +0300, Yishai Hadas wrote:
On 10/10/2023 23:42, Michael S. Tsirkin wrote:
On Tue, Oct 10, 2023 at
On 11/10/2023 11:02, Michael S. Tsirkin wrote:
On Wed, Oct 11, 2023 at 10:44:49AM +0300, Yishai Hadas wrote:
On 10/10/2023 23:42, Michael S. Tsirkin wrote:
On Tue, Oct 10, 2023 at 07:09:08PM +0300, Yishai Hadas wrote:
Assuming that we'll put each command inside virtio as the generic layer, we
On 10/10/2023 23:42, Michael S. Tsirkin wrote:
On Tue, Oct 10, 2023 at 07:09:08PM +0300, Yishai Hadas wrote:
Assuming that we'll put each command inside virtio as the generic layer, we
won't be able to call/use this API internally to get the PF as of cyclic
dependencies between the modules,
On 10/10/2023 18:58, Michael S. Tsirkin wrote:
On Tue, Oct 10, 2023 at 06:43:32PM +0300, Yishai Hadas wrote:
On 10/10/2023 18:14, Michael S. Tsirkin wrote:
On Tue, Oct 10, 2023 at 06:09:44PM +0300, Yishai Hadas wrote:
On 10/10/2023 17:54, Michael S. Tsirkin wrote:
On Tue, Oct 10, 2023 at
On 10/10/2023 18:14, Michael S. Tsirkin wrote:
On Tue, Oct 10, 2023 at 06:09:44PM +0300, Yishai Hadas wrote:
On 10/10/2023 17:54, Michael S. Tsirkin wrote:
On Tue, Oct 10, 2023 at 11:08:49AM -0300, Jason Gunthorpe wrote:
On Tue, Oct 10, 2023 at 09:56:00AM -0400, Michael S. Tsirkin wrote:
On 10/10/2023 17:54, Michael S. Tsirkin wrote:
On Tue, Oct 10, 2023 at 11:08:49AM -0300, Jason Gunthorpe wrote:
On Tue, Oct 10, 2023 at 09:56:00AM -0400, Michael S. Tsirkin wrote:
However - the Intel GPU VFIO driver is such a bad experiance I don't
want to encourage people to make VFIO
On 21/09/2023 22:58, Alex Williamson wrote:
On Thu, 21 Sep 2023 15:40:40 +0300
Yishai Hadas wrote:
Introduce a vfio driver over virtio devices to support the legacy
interface functionality for VFs.
Background, from the virtio spec [1].
On 22/09/2023 12:54, Michael S. Tsirkin wrote:
On Thu, Sep 21, 2023 at 03:40:39PM +0300, Yishai Hadas wrote:
Expose admin commands over the virtio device, to be used by the
vfio-virtio driver in the next patches.
It includes: list query/use, legacy write/read, read notify_info.
Signed-off-by:
On 21/09/2023 23:34, Michael S. Tsirkin wrote:
On Thu, Sep 21, 2023 at 03:40:39PM +0300, Yishai Hadas wrote:
Expose admin commands over the virtio device, to be used by the
vfio-virtio driver in the next patches.
It includes: list query/use, legacy write/read, read notify_info.
Signed-off-by:
On 21/09/2023 19:35, Alex Williamson wrote:
On Thu, 21 Sep 2023 15:40:37 +0300
Yishai Hadas wrote:
Expose vfio_pci_core_setup_barmap() to be used by drivers.
This will let drivers to mmap a BAR and re-use it from both vfio and the
driver when it's applicable.
This API will be used in the
Introduce a vfio driver over virtio devices to support the legacy
interface functionality for VFs.
Background, from the virtio spec [1].
In some systems, there is a need to support a virtio legacy driver with
a device that does
Expose admin commands over the virtio device, to be used by the
vfio-virtio driver in the next patches.
It includes: list query/use, legacy write/read, read notify_info.
Signed-off-by: Yishai Hadas
---
drivers/vfio/pci/virtio/cmd.c | 146 ++
Expose vfio_pci_core_setup_barmap() to be used by drivers.
This will let drivers to mmap a BAR and re-use it from both vfio and the
driver when it's applicable.
This API will be used in the next patches by the vfio/virtio coming
driver.
Signed-off-by: Yishai Hadas
---
From: Feng Liu
Introduces admin commands, as follow:
The "list query" command can be used by the driver to query the
set of admin commands supported by the virtio device.
The "list use" command is used to inform the virtio device which
admin commands the driver will use.
The "legacy common cfg
Expose vfio_pci_iowrite/read##size() to let it be used by drivers.
This functionality is needed to enable direct access to some physical
BAR of the device with the proper locks/checks in place.
The next patches from this series will use this functionality on a data
path flow when a direct access
From: Feng Liu
Introduce API to get PF virtio device from the given VF PCI device so
that other modules such as vfio in subsequent patch can use it.
Signed-off-by: Feng Liu
Reviewed-by: Parav Pandit
Reviewed-by: Jiri Pirko
Signed-off-by: Yishai Hadas
---
drivers/virtio/virtio_pci_common.c
From: Feng Liu
Add support for sending admin command through admin virtqueue interface,
and expose generic API to execute virtio admin command. Reuse the send
synchronous command helper function at virtio transport layer. In
addition, add new result state of admin command and admin commands
From: Feng Liu
Synchronous command helper function is exposed at virtio layer,
so that ctrl virtqueue and admin virtqueues can reuse this helper
function to send synchronous commands.
Signed-off-by: Feng Liu
Reviewed-by: Parav Pandit
Reviewed-by: Jiri Pirko
Signed-off-by: Yishai Hadas
---
From: Feng Liu
Introduce VIRTIO_F_ADMIN_VQ which is used for administration virtqueue
support.
Signed-off-by: Feng Liu
Reviewed-by: Parav Pandit
Reviewed-by: Jiri Pirko
Signed-off-by: Yishai Hadas
---
include/uapi/linux/virtio_config.h | 8 +++-
1 file changed, 7 insertions(+), 1
From: Feng Liu
Introduce support for the admin virtqueue. By negotiating
VIRTIO_F_ADMIN_VQ feature, driver detects capability and creates one
administration virtqueue. Administration virtqueue implementation in
virtio pci generic layer, enables multiple types of upper layer
drivers such as vfio,
From: Feng Liu
Currently VQ deletion callback vp_del_vqs() processes generic
virtio_device level VQ list instead of VQ information available at PCI
layer.
To adhere to the layering, use the pci device level VQ information
stored in the virtqueues or vqs.
This also prepares the code to handle
This series introduce a vfio driver over virtio devices to support the
legacy interface functionality for VFs.
Background, from the virtio spec [1].
In some systems, there is a need to support a virtio legacy driver with
a
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