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authorJason Wang <jasowang@redhat.com>2020-03-26 17:01:24 +0300
committerMichael S. Tsirkin <mst@redhat.com>2020-04-02 17:41:40 +0300
commit2c53d0f64c06f4580588ef16f50f63a112117a02 (patch)
treeb7223a184999bb337c05379b403723fe33aef0b6 /drivers/virtio/vdpa/vdpa_sim/Makefile
parent4c8cf31885f69e86be0b5b9e6677a26797365e1d (diff)
downloadlinux-2c53d0f64c06f4580588ef16f50f63a112117a02.tar.xz
vdpasim: vDPA device simulator
This patch implements a software vDPA networking device. The datapath is implemented through vringh and workqueue. The device has an on-chip IOMMU which translates IOVA to PA. For kernel virtio drivers, vDPA simulator driver provides dma_ops. For vhost driers, set_map() methods of vdpa_config_ops is implemented to accept mappings from vhost. Currently, vDPA device simulator will loopback TX traffic to RX. So the main use case for the device is vDPA feature testing, prototyping and development. Note, there's no management API implemented, a vDPA device will be registered once the module is probed. We need to handle this in the future development. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20200326140125.19794-9-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/virtio/vdpa/vdpa_sim/Makefile')
-rw-r--r--drivers/virtio/vdpa/vdpa_sim/Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/virtio/vdpa/vdpa_sim/Makefile b/drivers/virtio/vdpa/vdpa_sim/Makefile
new file mode 100644
index 000000000000..b40278f65e04
--- /dev/null
+++ b/drivers/virtio/vdpa/vdpa_sim/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_VDPA_SIM) += vdpa_sim.o