Changes in Makefile

f232836a - vfio/pds: Add support for dirty page tracking

Mon, 07 Aug 2023 20:57:53 +0000

vfio/pds: Add support for dirty page trackingIn order to support dirty page tracking, the driver has to implementthe VFIO subsystem's vfio_log_ops. This includes log_start, log_stop,and log_read_and_clear.All of the tracker resources are allocated and dirty tracking on thedevice is started during log_start. The resources are cleaned up anddirty tracking on the device is stopped during log_stop. The dirtypages are determined and reported during log_read_and_clear.In order to support these callbacks admin queue commands are used.All of the adminq queue command structures and implementationsare included as part of this patch.PDS_LM_CMD_DIRTY_STATUS is added to query the current status ofdirty tracking on the device. This includes if it's enabled (i.e.number of regions being tracked from the device's perspective) andthe maximum number of regions supported from the device's perspective.PDS_LM_CMD_DIRTY_ENABLE is added to enable dirty tracking on thespecified number of regions and their iova ranges.PDS_LM_CMD_DIRTY_DISABLE is added to disable dirty tracking for allregions on the device.PDS_LM_CMD_READ_SEQ and PDS_LM_CMD_DIRTY_WRITE_ACK are added tosupport reading and acknowledging the currently dirtied pages.Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Simon Horman Reviewed-by: Jason Gunthorpe Reviewed-by: Kevin Tian Reviewed-by: Shameer Kolothum Link: https://lore.kernel.org/r/20230807205755.29579-7-brett.creeley@amd.comSigned-off-by: Alex Williamson List of files: /linux-6.15/drivers/vfio/pci/pds/Makefile

bb500dbe - vfio/pds: Add VFIO live migration support

Mon, 07 Aug 2023 20:57:52 +0000

vfio/pds: Add VFIO live migration supportAdd live migration support via the VFIO subsystem. The migrationimplementation aligns with the definition from uapi/vfio.h and usesthe pds_core PF's adminq for device configuration.The ability to suspend, resume, and transfer VF device state data isincluded along with the required admin queue command structures andimplementations.PDS_LM_CMD_SUSPEND and PDS_LM_CMD_SUSPEND_STATUS are added to supportthe VF device suspend operation.PDS_LM_CMD_RESUME is added to support the VF device resume operation.PDS_LM_CMD_STATE_SIZE is added to determine the exact size of the VFdevice state data.PDS_LM_CMD_SAVE is added to get the VF device state data.PDS_LM_CMD_RESTORE is added to restore the VF device with thepreviously saved data from PDS_LM_CMD_SAVE.PDS_LM_CMD_HOST_VF_STATUS is added to notify the DSC/firmware whena migration is in/not-in progress from the host's perspective. TheDSC/firmware can use this to clear/setup any necessary state relatedto a migration.Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Simon Horman Reviewed-by: Kevin Tian Reviewed-by: Shameer Kolothum Reviewed-by: Jason Gunthorpe Link: https://lore.kernel.org/r/20230807205755.29579-6-brett.creeley@amd.comSigned-off-by: Alex Williamson List of files: /linux-6.15/drivers/vfio/pci/pds/Makefile

63f77a71 - vfio/pds: register with the pds_core PF

Mon, 07 Aug 2023 20:57:51 +0000

vfio/pds: register with the pds_core PFThe pds_core driver will supply adminq services, so find the PFand register with the DSC services.Use the following commands to enable a VF:echo 1 > /sys/bus/pci/drivers/pds_core/$PF_BDF/sriov_numvfsSigned-off-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Simon Horman Reviewed-by: Kevin Tian Reviewed-by: Shameer Kolothum Reviewed-by: Jason Gunthorpe Link: https://lore.kernel.org/r/20230807205755.29579-5-brett.creeley@amd.comSigned-off-by: Alex Williamson List of files: /linux-6.15/drivers/vfio/pci/pds/Makefile

38fe3975 - vfio/pds: Initial support for pds VFIO driver

Mon, 07 Aug 2023 20:57:49 +0000

vfio/pds: Initial support for pds VFIO driverThis is the initial framework for the new pds-vfio-pci device driver.This does the very basics of registering the PDS PCI device andconfiguring it as a VFIO PCI device.With this change, the VF device can be bound to the pds-vfio-pci driveron the host and presented to the VM as an ethernet VF.Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Simon Horman Reviewed-by: Kevin Tian Reviewed-by: Shameer Kolothum Reviewed-by: Jason Gunthorpe Link: https://lore.kernel.org/r/20230807205755.29579-3-brett.creeley@amd.comSigned-off-by: Alex Williamson List of files: /linux-6.15/drivers/vfio/pci/pds/Makefile