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On 2/19/20 7:56 PM, Jason Wang wrote: > diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig > index 9c4fdb64d9ac..0df3676b0f4f 100644 > --- a/drivers/virtio/Kconfig > +++ b/drivers/virtio/Kconfig > @@ -43,6 +43,19 @@ config VIRTIO_PCI_LEGACY > > If unsure, say Y. > > +config VIRTIO_VDPA > + tristate "vDPA driver for virtio devices" > + select VDPA > +...

...rivers/virtio/Kconfig | 13 ++ drivers/virtio/Makefile | 1 + drivers/virtio/virtio_vdpa.c | 392 +++++++++++++++++++++++++++++++++++ 3 files changed, 406 insertions(+) create mode 100644 drivers/virtio/virtio_vdpa.c diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig index 9c4fdb64d9ac..0df3676b0f4f 100644 --- a/drivers/virtio/Kconfig +++ b/drivers/virtio/Kconfig @@ -43,6 +43,19 @@ config VIRTIO_PCI_LEGACY If unsure, say Y. +config VIRTIO_VDPA + tristate "vDPA driver for virtio devices" + select VDPA + select VIRTIO + help + This driver provides...

...rivers/virtio/Kconfig | 13 ++ drivers/virtio/Makefile | 1 + drivers/virtio/virtio_vdpa.c | 392 +++++++++++++++++++++++++++++++++++ 3 files changed, 406 insertions(+) create mode 100644 drivers/virtio/virtio_vdpa.c diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig index 9c4fdb64d9ac..0df3676b0f4f 100644 --- a/drivers/virtio/Kconfig +++ b/drivers/virtio/Kconfig @@ -43,6 +43,19 @@ config VIRTIO_PCI_LEGACY If unsure, say Y. +config VIRTIO_VDPA + tristate "vDPA driver for virtio devices" + select VDPA + select VIRTIO + help + This driver provides...

...F: tools/virtio/ F: drivers/net/virtio_net.c F: drivers/block/virtio_blk.c F: include/linux/virtio*.h +F: include/linux/vdpa.h F: include/uapi/linux/virtio_*.h F: drivers/crypto/virtio/ F: mm/balloon_compaction.c diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig index 078615cf2afc..9c4fdb64d9ac 100644 --- a/drivers/virtio/Kconfig +++ b/drivers/virtio/Kconfig @@ -96,3 +96,5 @@ config VIRTIO_MMIO_CMDLINE_DEVICES If unsure, say 'N'. endif # VIRTIO_MENU + +source "drivers/virtio/vdpa/Kconfig" diff --git a/drivers/virtio/Makefile b/drivers/virtio/Makefile index 3a2b5c5d...

...F: tools/virtio/ F: drivers/net/virtio_net.c F: drivers/block/virtio_blk.c F: include/linux/virtio*.h +F: include/linux/vdpa.h F: include/uapi/linux/virtio_*.h F: drivers/crypto/virtio/ F: mm/balloon_compaction.c diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig index 078615cf2afc..9c4fdb64d9ac 100644 --- a/drivers/virtio/Kconfig +++ b/drivers/virtio/Kconfig @@ -96,3 +96,5 @@ config VIRTIO_MMIO_CMDLINE_DEVICES If unsure, say 'N'. endif # VIRTIO_MENU + +source "drivers/virtio/vdpa/Kconfig" diff --git a/drivers/virtio/Makefile b/drivers/virtio/Makefile index 3a2b5c5d...

Hi all: This is an update version of vDPA support in kernel. vDPA device is a device that uses a datapath which complies with the virtio specifications with vendor specific control path. vDPA devices can be both physically located on the hardware or emulated by software. vDPA hardware devices are usually implemented through PCIE with the following types: - PF (Physical Function) - A single

Hi all: This is an update version of vDPA support in kernel. vDPA device is a device that uses a datapath which complies with the virtio specifications with vendor specific control path. vDPA devices can be both physically located on the hardware or emulated by software. vDPA hardware devices are usually implemented through PCIE with the following types: - PF (Physical Function) - A single

Hi all: This is an updated version of kernel support for vDPA device. Various changes were made based on the feedback since last verion. One major change is to drop the sysfs API and leave the management interface for future development, and introudce the incremental DMA bus operations. Please see changelog for more information. The work on vhost, IFCVF (intel VF driver for vDPA) and qemu is