Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 129 insertions, 0 deletions

diff --git a/drivers/vdpa/Kconfig b/drivers/vdpa/Kconfig
new file mode 100644
index 000000000..656c1cb54
--- /dev/null
+++ b/drivers/vdpa/Kconfig
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: GPL-2.0-only
+menuconfig VDPA
+	tristate "vDPA drivers"
+	depends on NET
+	help
+	  Enable this module to support vDPA device that uses a
+	  datapath which complies with virtio specifications with
+	  vendor specific control path.
+
+if VDPA
+
+config VDPA_SIM
+	tristate "vDPA device simulator core"
+	depends on RUNTIME_TESTING_MENU && HAS_DMA
+	select DMA_OPS
+	select VHOST_RING
+	select IOMMU_IOVA
+	help
+	  Enable this module to support vDPA device simulators. These devices
+	  are used for testing, prototyping and development of vDPA.
+
+config VDPA_SIM_NET
+	tristate "vDPA simulator for networking device"
+	depends on VDPA_SIM
+	select GENERIC_NET_UTILS
+	help
+	  vDPA networking device simulator which loops TX traffic back to RX.
+
+config VDPA_SIM_BLOCK
+	tristate "vDPA simulator for block device"
+	depends on VDPA_SIM
+	help
+	  vDPA block device simulator which terminates IO request in a
+	  memory buffer.
+
+config VDPA_USER
+	tristate "VDUSE (vDPA Device in Userspace) support"
+	depends on EVENTFD && MMU && HAS_DMA
+	select DMA_OPS
+	select VHOST_IOTLB
+	select IOMMU_IOVA
+	help
+	  With VDUSE it is possible to emulate a vDPA Device
+	  in a userspace program.
+
+config IFCVF
+	tristate "Intel IFC VF vDPA driver"
+	depends on PCI_MSI
+	help
+	  This kernel module can drive Intel IFC VF NIC to offload
+	  virtio dataplane traffic to hardware.
+	  To compile this driver as a module, choose M here: the module will
+	  be called ifcvf.
+
+config MLX5_VDPA
+	bool
+	select VHOST_IOTLB
+	help
+	  Support library for Mellanox VDPA drivers. Provides code that is
+	  common for all types of VDPA drivers. The following drivers are planned:
+	  net, block.
+
+config MLX5_VDPA_NET
+	tristate "vDPA driver for ConnectX devices"
+	select MLX5_VDPA
+	select VHOST_RING
+	depends on MLX5_CORE
+	help
+	  VDPA network driver for ConnectX6 and newer. Provides offloading
+	  of virtio net datapath such that descriptors put on the ring will
+	  be executed by the hardware. It also supports a variety of stateless
+	  offloads depending on the actual device used and firmware version.
+
+config MLX5_VDPA_STEERING_DEBUG
+	bool "expose steering counters on debugfs"
+	select MLX5_VDPA
+	help
+	  Expose RX steering counters in debugfs to aid in debugging. For each VLAN
+	  or non VLAN interface, two hardware counters are added to the RX flow
+	  table: one for unicast and one for multicast.
+	  The counters counts the number of packets and bytes and exposes them in
+	  debugfs. Once can read the counters using, e.g.:
+	  cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/untagged/ucast/packets
+	  cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/untagged/mcast/bytes
+
+config VP_VDPA
+	tristate "Virtio PCI bridge vDPA driver"
+	select VIRTIO_PCI_LIB
+	depends on PCI_MSI
+	help
+	  This kernel module bridges virtio PCI device to vDPA bus.
+
+config ALIBABA_ENI_VDPA
+	tristate "vDPA driver for Alibaba ENI"
+	select VIRTIO_PCI_LIB_LEGACY
+	depends on PCI_MSI && X86
+	help
+	  VDPA driver for Alibaba ENI (Elastic Network Interface) which is built upon
+	  virtio 0.9.5 specification.
+
+ config SNET_VDPA
+	tristate "SolidRun's vDPA driver for SolidNET"
+	depends on PCI_MSI && PCI_IOV && (HWMON || HWMON=n)
+
+	# This driver MAY create a HWMON device.
+	# Depending on (HWMON || HWMON=n) ensures that:
+	# If HWMON=n the driver can be compiled either as a module or built-in.
+	# If HWMON=y the driver can be compiled either as a module or built-in.
+	# If HWMON=m the driver is forced to be compiled as a module.
+	# By doing so, IS_ENABLED can be used instead of IS_REACHABLE
+
+	help
+	  vDPA driver for SolidNET DPU.
+	  With this driver, the VirtIO dataplane can be
+	  offloaded to a SolidNET DPU.
+	  This driver includes a HW monitor device that
+	  reads health values from the DPU.
+
+config PDS_VDPA
+	tristate "vDPA driver for AMD/Pensando DSC devices"
+	select VIRTIO_PCI_LIB
+	depends on PCI_MSI
+	depends on PDS_CORE
+	help
+	  vDPA network driver for AMD/Pensando's PDS Core devices.
+	  With this driver, the VirtIO dataplane can be
+	  offloaded to an AMD/Pensando DSC device.
+
+endif # VDPA