On 5/12/23 6:30 AM, Michael S. Tsirkin wrote:
On Fri, May 12, 2023 at 12:51:21PM +, Dragos Tatulea wrote:
On Thu, 2023-05-04 at 14:51 -0400, Michael S. Tsirkin wrote:
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:
On 5/14/23 10:02 PM, Jason Wang wrote:
On Thu, May 4, 2023 at 2:13 AM Shannon Nelson wrote:
Register for the pds_core's notification events, primarily to
find out when the FW has been reset so we can pass this on
back up the chain.
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/vdpa_de
On 5/14/23 10:07 PM, Jason Wang wrote:
On Thu, May 4, 2023 at 2:13 AM Shannon Nelson wrote:
Add the documentation and Kconfig entry for pds_vdpa driver.
Signed-off-by: Shannon Nelson
---
.../device_drivers/ethernet/amd/pds_vdpa.rst | 85 +++
.../device_drivers/ethernet/in
On 5/9/23 1:46 AM, Stefano Garzarella wrote:
On Mon, Apr 24, 2023 at 03:50:30PM -0700, Shannon Nelson via
Virtualization wrote:
Use the right structs for PACKED or split vqs when setting and
getting the vring base.
Signed-off-by: Shannon Nelson
---
drivers/vhost/vhost.c | 18
To add a bit of vendor flexibility with various virtio based devices,
allow the caller to check for a different device id. This adds a function
pointer field to struct virtio_pci_modern_device to specify an override
device id check. If defined by the driver, this function will be called
to check
To add a bit of vendor flexibility with various virtio based devices,
allow the caller to specify a different DMA mask. This adds a dma_mask
field to struct virtio_pci_modern_device. If defined by the driver,
this mask will be used in a call to dma_set_mask_and_coherent() instead
of the tradition
This patchset implements a new module for the AMD/Pensando DSC that
supports vDPA services on PDS Core VF devices. This code is based on
and depends on include files from the pds_core driver described here[0].
The pds_core driver creates the auxiliary_bus devices that this module
connects to, and
The pds_core_logical_qtype enum and IFNAMSIZ are not needed
in the common PDS header, only needed when working with the
adminq, so move them to the adminq header.
Note: This patch might conflict with pds_vfio patches that are
in review, depending on which patchset gets pulled first.
Signed-
Find the vDPA management information from the DSC in order to
advertise it to the vdpa subsystem.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
drivers/vdpa/pds/Makefile | 3 +-
drivers/vdpa/pds/aux_drv.c | 17 ++
drivers/vdpa/pds/aux_drv.h | 7 +++
drivers/vdpa/pds/debugf
Prep and use the "modern" virtio bar utilities to get our
virtio config space ready.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
drivers/vdpa/pds/aux_drv.c | 25 +
drivers/vdpa/pds/aux_drv.h | 3 +++
2 files changed, 28 insertions(+)
diff --git a/drivers/vdp
This is the initial auxiliary driver framework for a new vDPA
device driver, an auxiliary_bus client of the pds_core driver.
The pds_core driver supplies the PCI services for the VF device
and for accessing the adminq in the PF device.
This patch adds the very basics of registering for the auxilia
Add new adminq definitions in support for vDPA operations.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
include/linux/pds/pds_adminq.h | 226 +
1 file changed, 226 insertions(+)
diff --git a/include/linux/pds/pds_adminq.h b/include/linux/pds/pds_adminq
These are the adminq commands that will be needed for
setting up and using the vDPA device. There are a number
of commands defined in the FW's API, but by making use of
the FW's virtio BAR we only need a few of these commands
for vDPA support.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
Register for the pds_core's notification events, primarily to
find out when the FW has been reset so we can pass this on
back up the chain.
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/vdpa_dev.c | 59 -
drivers/vdpa/pds/vdpa_dev.h | 1 +
2 files change
This is the vDPA device support, where we advertise that we can
support the virtio queues and deal with the configuration work
through the pds_core's adminq.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
drivers/vdpa/pds/aux_drv.c | 15 +
drivers/vdpa/pds/aux_drv.h | 1 +
drivers/
Add the documentation and Kconfig entry for pds_vdpa driver.
Signed-off-by: Shannon Nelson
---
.../device_drivers/ethernet/amd/pds_vdpa.rst | 85 +++
.../device_drivers/ethernet/index.rst | 1 +
MAINTAINERS | 4 +
drivers/vdpa/Kconfig
On 5/15/23 11:12 PM, Michael S. Tsirkin wrote:
On Mon, May 15, 2023 at 07:55:14PM -0700, Shannon Nelson wrote:
The pds_core_logical_qtype enum and IFNAMSIZ are not needed
in the common PDS header, only needed when working with the
adminq, so move them to the adminq header.
Note: This patch migh
On 5/16/23 3:35 AM, Simon Horman wrote:
On Mon, May 15, 2023 at 07:55:19PM -0700, Shannon Nelson wrote:
This is the vDPA device support, where we advertise that we can
support the virtio queues and deal with the configuration work
through the pds_core's adminq.
Signed-off-by: Shannon Nelson
A
On 5/16/23 12:49 AM, Stefano Garzarella wrote:
On Mon, May 15, 2023 at 01:41:12PM -0700, Shannon Nelson wrote:
On 5/9/23 1:46 AM, Stefano Garzarella wrote:
On Mon, Apr 24, 2023 at 03:50:30PM -0700, Shannon Nelson via
Virtualization wrote:
Use the right structs for PACKED or split vqs when
On 5/16/23 7:24 PM, kernel test robot wrote:
Hi Shannon,
kernel test robot noticed the following build warnings:
[auto build test WARNING on linus/master]
[also build test WARNING on v6.4-rc2 next-20230516]
[cannot apply to mst-vhost/linux-next]
[If your patch is applied to the wrong git tree,
This patchset implements a new module for the AMD/Pensando DSC that
supports vDPA services on PDS Core VF devices. This code is based on
and depends on include files from the pds_core driver described here[0].
The pds_core driver creates the auxiliary_bus devices that this module
connects to, and
To add a bit of vendor flexibility with various virtio based devices,
allow the caller to specify a different DMA mask. This adds a dma_mask
field to struct virtio_pci_modern_device. If defined by the driver,
this mask will be used in a call to dma_set_mask_and_coherent() instead
of the tradition
To add a bit of vendor flexibility with various virtio based devices,
allow the caller to check for a different device id. This adds a function
pointer field to struct virtio_pci_modern_device to specify an override
device id check. If defined by the driver, this function will be called
to check
The pds_core_logical_qtype enum and IFNAMSIZ are not needed
in the common PDS header, only needed when working with the
adminq, so move them to the adminq header.
Note: This patch might conflict with pds_vfio patches that are
in review, depending on which patchset gets pulled first.
Signed-
Add new adminq definitions in support for vDPA operations.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
include/linux/pds/pds_adminq.h | 226 +
1 file changed, 226 insertions(+)
diff --git a/include/linux/pds/pds_adminq.h b/include/linux/pds/pds_adminq
Find the vDPA management information from the DSC in order to
advertise it to the vdpa subsystem.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
drivers/vdpa/pds/Makefile | 3 +-
drivers/vdpa/pds/aux_drv.c | 17 ++
drivers/vdpa/pds/aux_drv.h | 7 +++
drivers/vdpa/pds/debugf
This is the initial auxiliary driver framework for a new vDPA
device driver, an auxiliary_bus client of the pds_core driver.
The pds_core driver supplies the PCI services for the VF device
and for accessing the adminq in the PF device.
This patch adds the very basics of registering for the auxilia
This is the vDPA device support, where we advertise that we can
support the virtio queues and deal with the configuration work
through the pds_core's adminq.
Signed-off-by: Shannon Nelson
---
Note: this had previously been Acked-by Jason Wang, but changed enough
in v6 that I felt it needs
Register for the pds_core's notification events, primarily to
find out when the FW has been reset so we can pass this on
back up the chain.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
drivers/vdpa/pds/vdpa_dev.c | 59 -
drivers/vdpa/pds/vdpa_dev.h
Prep and use the "modern" virtio bar utilities to get our
virtio config space ready.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
drivers/vdpa/pds/aux_drv.c | 25 +
drivers/vdpa/pds/aux_drv.h | 3 +++
2 files changed, 28 insertions(+)
diff --git a/drivers/vdp
Add the documentation and Kconfig entry for pds_vdpa driver.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
.../device_drivers/ethernet/amd/pds_vdpa.rst | 85 +++
.../device_drivers/ethernet/index.rst | 1 +
MAINTAINERS | 4 +
These are the adminq commands that will be needed for
setting up and using the vDPA device. There are a number
of commands defined in the FW's API, but by making use of
the FW's virtio BAR we only need a few of these commands
for vDPA support.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
From: Allen Hubbe
We were allocating irq vectors at the time the aux dev was probed,
but that is before the PCI VF is assigned to a separate iommu domain
by vhost_vdpa. Because vhost_vdpa later changes the iommu domain the
interrupts do not work.
Instead, we can allocate the irq vectors later w
Make sure that we initialize the vqs[] entries the same
way both for initial setup and after a vq reset.
Fixes: 151cc834f3dd ("pds_vdpa: add support for vdpa and vdpamgmt interfaces")
Signed-off-by: Shannon Nelson
Reviewed-by: Brett Creeley
---
drivers/vdpa/pds/vdpa_dev.c | 24 +++--
v2 for internal review
- heavily reworked NET_F_MAC patch, matches recent PR-68875
- reordered to put "clean and reset vqs" before "alloc-irq"
to make them slightly simpler patches
- other minor cleanups for simpler patches
These are some fixes for device providing a MAC address, for alloca
Our driver sets a mac if the HW is 00:..:00 so we need to be sure to
advertise VIRTIO_NET_F_MAC even if the HW doesn't. We also need to be
sure that virtio_net sees the VIRTIO_NET_F_MAC and doesn't rewrite the
mac address that a user may have set with the vdpa utility.
After reading the hw_featur
From: Allen Hubbe
When the vdpa device is reset, also reinitialize it with the mac address
that was assigned when the device was added.
Fixes: 151cc834f3dd ("pds_vdpa: add support for vdpa and vdpamgmt interfaces")
Signed-off-by: Allen Hubbe
Signed-off-by: Shannon Nelson
Reviewed-by: Brett Cre
On 7/5/23 11:27 AM, Eugenio Perez Martin wrote:
>
On Wed, Jul 5, 2023 at 9:50 AM Jason Wang wrote:
On Tue, Jul 4, 2023 at 11:45 PM Michael S. Tsirkin wrote:
On Tue, Jul 04, 2023 at 01:36:11PM +0200, Eugenio Perez Martin wrote:
On Tue, Jul 4, 2023 at 12:38 PM Michael S. Tsirkin wrote:
On
On 7/6/23 2:07 PM, Randy Dunlap wrote:
On 7/5/23 18:57, Stephen Rothwell wrote:
Hi all,
Please do *not* add any v6.6 related stuff to your linux-next included
branches until after v6.5-rc1 has been released.
Changes since 20230705:
On loongarch, when DEBUG_FS is not set:
ERROR: modpost: "
debugfs.h protects itself from an undefined DEBUG_FS, so it is
not necessary to check it in the driver code or the Makefile.
The driver code had been updated for this, but the Makefile had
missed the update.
Link:
https://lore.kernel.org/linux-next/fec68c3c-8249-7af4-5390-0495386a7...@infradead.o
On 7/7/23 12:33 AM, Jason Wang wrote:
Caution: This message originated from an External Source. Use proper caution
when opening attachments, clicking links, or responding.
On Fri, Jun 30, 2023 at 8:36 AM Shannon Nelson wrote:
From: Allen Hubbe
When the vdpa device is reset, also reiniti
On 7/7/23 12:44 AM, Jason Wang wrote:
On Fri, Jun 30, 2023 at 8:36 AM Shannon Nelson wrote:
Our driver sets a mac if the HW is 00:..:00 so we need to be sure to
advertise VIRTIO_NET_F_MAC even if the HW doesn't. We also need to be
sure that virtio_net sees the VIRTIO_NET_F_MAC and doesn't re
On 7/7/23 12:36 AM, Jason Wang wrote:
Caution: This message originated from an External Source. Use proper caution
when opening attachments, clicking links, or responding.
On Fri, Jun 30, 2023 at 8:36 AM Shannon Nelson wrote:
Make sure that we initialize the vqs[] entries the same
way bot
On 7/9/23 8:04 PM, Jason Wang wrote:
On Sat, Jul 8, 2023 at 4:12 AM Shannon Nelson wrote:
On 7/7/23 12:33 AM, Jason Wang wrote:
Caution: This message originated from an External Source. Use proper caution
when opening attachments, clicking links, or responding.
On Fri, Jun 30, 2023 at 8
Make clearer in debugfs output the difference between the hw
feature bits, the features supported through the driver, and
the features that have been negotiated.
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/debugfs.c | 13 ++---
1 file changed, 6 insertions(+), 7 deletions(-)
diff
From: Allen Hubbe
When the vdpa device is reset, also reinitialize it with the mac address
that was assigned when the device was added.
Fixes: 151cc834f3dd ("pds_vdpa: add support for vdpa and vdpamgmt interfaces")
Signed-off-by: Allen Hubbe
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/
These are some fixes for device providing a MAC address, for allocating
irq resources later to support vhost use, and for properly cleaning
vq info on reset.
v2:
- check driver feature request against supported_features, and strip
the F_MAC bit if needed just before writing to the HW.
- repor
Our driver sets a mac if the HW is 00:..:00 so we need to be sure to
advertise VIRTIO_NET_F_MAC even if the HW doesn't. We also need to be
sure that virtio_net sees the VIRTIO_NET_F_MAC and doesn't rewrite the
mac address that a user may have set with the vdpa utility.
After reading the hw_featur
From: Allen Hubbe
We were allocating irq vectors at the time the aux dev was probed,
but that is before the PCI VF is assigned to a separate iommu domain
by vhost_vdpa. Because vhost_vdpa later changes the iommu domain the
interrupts do not work.
Instead, we can allocate the irq vectors later w
Make sure that we initialize the vqs[] entries the same
way both for initial setup and after a vq reset.
Fixes: 151cc834f3dd ("pds_vdpa: add support for vdpa and vdpamgmt interfaces")
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/vdpa_dev.c | 24 +---
1 file changed, 17
When trying to talk to a device that has gone out to lunch, the
virtnet_send_command() will sit and spin forever, causing a soft
lockup and eventually crashing the kernel. Add a limit to the
spin and return false if we hit the timeout. The 2 second time
limit seems a bit arbitrary, but a reasonab
On 7/19/23 12:40 PM, Arnd Bergmann wrote:
From: Arnd Bergmann
The new debugfs code still gets called when debugfs is disabled, resulting
in a link failure:
ERROR: modpost: "pds_vdpa_debugfs_del_vdpadev" [drivers/vdpa/pds/pds_vdpa.ko]
undefined!
ERROR: modpost: "pds_vdpa_debugfs_add_vdpadev"
On 7/20/23 1:38 AM, Jason Wang wrote:
Adding cond_resched() to the command waiting loop for a better
co-operation with the scheduler. This allows to give CPU a breath to
run other task(workqueue) instead of busy looping when preemption is
not allowed on a device whose CVQ might be slow.
Signed-
On 7/20/23 1:38 AM, Jason Wang wrote:
This patch convert rx mode setting to be done in a workqueue, this is
a must for allow to sleep when waiting for the cvq command to
response since current code is executed under addr spin lock.
Note that we need to disable and flush the workqueue during fre
On 7/20/23 1:38 AM, Jason Wang wrote:
Adding cond_resched() to the command waiting loop for a better
co-operation with the scheduler. This allows to give CPU a breath to
run other task(workqueue) instead of busy looping when preemption is
not allowed on a device whose CVQ might be slow.
Signed-
Finally following up to Simon's suggestion for some kdoc attention
on struct virtio_pci_modern_device.
Link: https://lore.kernel.org/netdev/ze%2fqs0lnuvxfa...@corigine.com/
Cc: Simon Horman
Signed-off-by: Shannon Nelson
---
include/linux/virtio_pci_modern.h | 34 ---
From: Allen Hubbe
Consume the parameter to device_features when parsing command line
options. Otherwise the parameter may be used again as an option name.
# vdpa dev add ... device_features 0xdeadbeef mac 00:11:22:33:44:55
Unknown option "0xdeadbeef"
Fixes: a4442ce58ebb ("vdpa: allow provisi
Finally following up to Simon's suggestion for some kdoc attention
on struct virtio_pci_modern_device.
Link: https://lore.kernel.org/netdev/ze%2fqs0lnuvxfa...@corigine.com/
Cc: Simon Horman
Signed-off-by: Shannon Nelson
Acked-by: Eugenio Pérez
---
include/linux/virtio_pci_modern.h | 34 +++
Use the right structs for PACKED or split vqs when setting and
getting the vring base.
Signed-off-by: Shannon Nelson
---
drivers/vhost/vhost.c | 18 +-
1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index f11bdbe4c2c5.
While testing our vDPA driver with QEMU we found that vhost_vdpa seems to
be missing some support for PACKED VQs. Adding these helped us get further
in our testing. The first patch makes sure that the vhost_vdpa vqs are given
the feature flags, as done in other vhost variants. The second and thi
As is done in the net, iscsi, and vsock vhost support, let the vdpa vqs
know about the features that have been negotiated. This allows vhost
to more safely make decisions based on the features, such as when using
PACKED vs split queues.
Signed-off-by: Shannon Nelson
---
drivers/vhost/vdpa.c | 1
Use the right structs for PACKED or split vqs when setting and
getting the vring base.
Signed-off-by: Shannon Nelson
---
drivers/vhost/vdpa.c | 19 +++
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 599b8cc238c7..2
On 4/22/23 11:36 PM, Jason Wang wrote:
On Sat, Apr 22, 2023 at 3:57 AM Shannon Nelson wrote:
Use the right structs for PACKED or split vqs when setting and
getting the vring base.
Signed-off-by: Shannon Nelson
---
drivers/vhost/vhost.c | 18 +-
1 file changed, 13 insertion
On 4/22/23 11:40 PM, Jason Wang wrote:
On Sat, Apr 22, 2023 at 3:57 AM Shannon Nelson wrote:
Use the right structs for PACKED or split vqs when setting and
getting the vring base.
Signed-off-by: Shannon Nelson
---
drivers/vhost/vdpa.c | 19 +++
1 file changed, 15 insertion
Use the right structs for PACKED or split vqs when setting and
getting the vring base.
Signed-off-by: Shannon Nelson
---
drivers/vhost/vhost.c | 18 +-
drivers/vhost/vhost.h | 8 ++--
2 files changed, 19 insertions(+), 7 deletions(-)
diff --git a/drivers/vhost/vhost.c b/dri
As is done in the net, iscsi, and vsock vhost support, let the vdpa vqs
know about the features that have been negotiated. This allows vhost
to more safely make decisions based on the features, such as when using
PACKED vs split queues.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
dr
Use the right structs for PACKED or split vqs when setting and
getting the vring base.
Signed-off-by: Shannon Nelson
---
drivers/vhost/vdpa.c | 21 +
1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 599b8cc238c7.
While testing our vDPA driver with QEMU we found that vhost_vdpa was
missing some support for PACKED VQs. Adding these helped us get further
in our testing. The first patch makes sure that the vhost_vdpa vqs are
given the feature flags, as done in other vhost variants. The second
and third patch
On 4/24/23 11:08 PM, Michael S. Tsirkin wrote:
On Mon, Apr 24, 2023 at 03:50:28PM -0700, Shannon Nelson wrote:
While testing our vDPA driver with QEMU we found that vhost_vdpa was
missing some support for PACKED VQs. Adding these helped us get further
in our testing. The first patch makes sur
This patchset implements a new module for the AMD/Pensando DSC that
supports vDPA services on PDS Core VF devices. This code is based on
and depends on include files from the pds_core driver described here[0].
The pds_core driver creates the auxiliary_bus devices that this module
connects to, and
To add a bit of flexibility with various virtio based devices, allow
the caller to specify a different device id and DMA mask. This adds
fields to struct virtio_pci_modern_device to specify an override device
id check and a DMA mask.
int (*device_id_check)(struct pci_dev *pdev);
If define
Find the vDPA management information from the DSC in order to
advertise it to the vdpa subsystem.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
drivers/vdpa/pds/Makefile | 3 +-
drivers/vdpa/pds/aux_drv.c | 17 ++
drivers/vdpa/pds/aux_drv.h | 7 +++
drivers/vdpa/pds/debugf
The pds_core_logical_qtype enum and IFNAMSIZ are not needed
in the common PDS header, only needed when working with the
adminq, so move them to the adminq header.
Note: This patch might conflict with pds_vfio patches that are
in review, depending on which patchset gets pulled first.
Signed-
Add new adminq definitions in support for vDPA operations.
Signed-off-by: Shannon Nelson
---
include/linux/pds/pds_adminq.h | 266 +
1 file changed, 266 insertions(+)
diff --git a/include/linux/pds/pds_adminq.h b/include/linux/pds/pds_adminq.h
index 61b0a8634e1a.
This is the initial auxiliary driver framework for a new vDPA
device driver, an auxiliary_bus client of the pds_core driver.
The pds_core driver supplies the PCI services for the VF device
and for accessing the adminq in the PF device.
This patch adds the very basics of registering for the auxilia
Add the documentation and Kconfig entry for pds_vdpa driver.
Signed-off-by: Shannon Nelson
---
.../device_drivers/ethernet/amd/pds_vdpa.rst | 85 +++
.../device_drivers/ethernet/index.rst | 1 +
MAINTAINERS | 4 +
drivers/vdpa/Kconfig
Prep and use the "modern" virtio bar utilities to get our
virtio config space ready.
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/aux_drv.c | 25 +
drivers/vdpa/pds/aux_drv.h | 3 +++
2 files changed, 28 insertions(+)
diff --git a/drivers/vdpa/pds/aux_drv.c b/driv
These are the adminq commands that will be needed for
setting up and using the vDPA device. There are a number
of commands defined in the FW's API, but by making use of
the FW's virtio BAR we only need a few of these commands
for vDPA support.
Signed-off-by: Shannon Nelson
---
Note: the previou
Register for the pds_core's notification events, primarily to
find out when the FW has been reset so we can pass this on
back up the chain.
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/vdpa_dev.c | 68 -
drivers/vdpa/pds/vdpa_dev.h | 1 +
2 files change
This is the vDPA device support, where we advertise that we can
support the virtio queues and deal with the configuration work
through the pds_core's adminq.
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/aux_drv.c | 15 +
drivers/vdpa/pds/aux_drv.h | 1 +
drivers/vdpa/pds/debugfs.c |
On 4/25/23 7:09 PM, Xuan Zhuo wrote:
On Tue, 25 Apr 2023 14:25:53 -0700, Shannon Nelson
wrote:
To add a bit of flexibility with various virtio based devices, allow
the caller to specify a different device id and DMA mask. This adds
fields to struct virtio_pci_modern_device to specify an over
On 5/1/23 7:44 AM, Simon Horman wrote:
On Tue, Apr 25, 2023 at 02:25:53PM -0700, Shannon Nelson wrote:
To add a bit of flexibility with various virtio based devices, allow
the caller to specify a different device id and DMA mask. This adds
fields to struct virtio_pci_modern_device to specify
Prep and use the "modern" virtio bar utilities to get our
virtio config space ready.
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/aux_drv.c | 25 +
drivers/vdpa/pds/aux_drv.h | 3 +++
2 files changed, 28 insertions(+)
diff --git a/drivers/vdpa/pds/aux_drv.c b/driv
This patchset implements a new module for the AMD/Pensando DSC that
supports vDPA services on PDS Core VF devices. This code is based on
and depends on include files from the pds_core driver described here[0].
The pds_core driver creates the auxiliary_bus devices that this module
connects to, and
To add a bit of vendor flexibility with various virtio based devices,
allow the caller to specify a different DMA mask. This adds a dma_mask
field to struct virtio_pci_modern_device. If defined by the driver,
this mask will be used in a call to dma_set_mask_and_coherent() instead
of the tradition
To add a bit of vendor flexibility with various virtio based devices,
allow the caller to check for a different device id. This adds a function
pointer field to struct virtio_pci_modern_device to specify an override
device id check. If defined by the driver, this function will be called
to check
The pds_core_logical_qtype enum and IFNAMSIZ are not needed
in the common PDS header, only needed when working with the
adminq, so move them to the adminq header.
Note: This patch might conflict with pds_vfio patches that are
in review, depending on which patchset gets pulled first.
Signed-
Find the vDPA management information from the DSC in order to
advertise it to the vdpa subsystem.
Signed-off-by: Shannon Nelson
Acked-by: Jason Wang
---
drivers/vdpa/pds/Makefile | 3 +-
drivers/vdpa/pds/aux_drv.c | 17 ++
drivers/vdpa/pds/aux_drv.h | 7 +++
drivers/vdpa/pds/debugf
Add the documentation and Kconfig entry for pds_vdpa driver.
Signed-off-by: Shannon Nelson
---
.../device_drivers/ethernet/amd/pds_vdpa.rst | 85 +++
.../device_drivers/ethernet/index.rst | 1 +
MAINTAINERS | 4 +
drivers/vdpa/Kconfig
Add new adminq definitions in support for vDPA operations.
Signed-off-by: Shannon Nelson
---
include/linux/pds/pds_adminq.h | 266 +
1 file changed, 266 insertions(+)
diff --git a/include/linux/pds/pds_adminq.h b/include/linux/pds/pds_adminq.h
index 61b0a8634e1a.
This is the initial auxiliary driver framework for a new vDPA
device driver, an auxiliary_bus client of the pds_core driver.
The pds_core driver supplies the PCI services for the VF device
and for accessing the adminq in the PF device.
This patch adds the very basics of registering for the auxilia
These are the adminq commands that will be needed for
setting up and using the vDPA device. There are a number
of commands defined in the FW's API, but by making use of
the FW's virtio BAR we only need a few of these commands
for vDPA support.
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/
Register for the pds_core's notification events, primarily to
find out when the FW has been reset so we can pass this on
back up the chain.
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/vdpa_dev.c | 68 -
drivers/vdpa/pds/vdpa_dev.h | 1 +
2 files change
This is the vDPA device support, where we advertise that we can
support the virtio queues and deal with the configuration work
through the pds_core's adminq.
Signed-off-by: Shannon Nelson
---
drivers/vdpa/pds/aux_drv.c | 15 +
drivers/vdpa/pds/aux_drv.h | 1 +
drivers/vdpa/pds/debugfs.c |
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