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| author | Jason Wang <jasowang@redhat.com> | 2020-03-26 22:01:22 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-04-01 12:06:26 -0400 |
| commit | c043b4a8cf3b16fbdcaec1126841431c33b16e98 (patch) | |
| tree | bb943ba36b674ee24274f4ef5a0bd62e7ef17fb3 /drivers/virtio/Kconfig | |
| parent | 961e9c84077f6c8579d7a628cbe94a675cb67ae4 (diff) | |
virtio: introduce a vDPA based transport
This patch introduces a vDPA transport for virtio. This is used to
use kernel virtio driver to drive the vDPA device that is capable
of populating virtqueue directly.
A new virtio-vdpa driver will be registered to the vDPA bus, when a
new virtio-vdpa device is probed, it will register the device with
vdpa based config ops. This means it is a software transport between
vDPA driver and vDPA device. The transport was implemented through
bus_ops of vDPA parent.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200326140125.19794-7-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/virtio/Kconfig')
| -rw-r--r-- | drivers/virtio/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig index 9c4fdb64d9ac..99e424570644 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 support for virtio based paravirtual + device driver over vDPA bus. For this to be useful, you need + an appropriate vDPA device implementation that operates on a + physical device to allow the datapath of virtio to be + offloaded to hardware. + + If unsure, say M. + config VIRTIO_PMEM tristate "Support for virtio pmem driver" depends on VIRTIO |