diff options
| author | Jason Wang <[email protected]> | 2022-09-27 15:48:10 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <[email protected]> | 2022-10-07 09:32:41 -0400 |
| commit | c1ca352d371f724f7fb40f016abdb563aa85fe55 (patch) | |
| tree | ce020e383f0278e2aa4361d512aaf29c9969e032 /tools/testing/selftests/bpf/progs/test_autoload.c | |
| parent | 477f71971422fb225337b30f7b79363387b1d78c (diff) | |
vp_vdpa: support feature provisioning
This patch allows the device features to be provisioned via
netlink. This is done by:
1) validating the provisioned features to be a subset of the parent
features.
2) clearing the features that is not wanted by the userspace
For example:
# vdpa mgmtdev show
pci/0000:02:00.0:
supported_classes net
max_supported_vqs 3
dev_features CSUM GUEST_CSUM CTRL_GUEST_OFFLOADS MAC GUEST_TSO4
GUEST_TSO6 GUEST_ECN GUEST_UFO HOST_TSO4 HOST_TSO6 HOST_ECN HOST_UFO
MRG_RXBUF STATUS CTRL_VQ CTRL_RX CTRL_VLAN CTRL_RX_EXTRA
GUEST_ANNOUNCE CTRL_MAC_ADDR RING_INDIRECT_DESC RING_EVENT_IDX
VERSION_1 ACCESS_PLATFORM
1) provision vDPA device with all features that are supported by the virtio-pci
# vdpa dev add name dev1 mgmtdev pci/0000:02:00.0
# vdpa dev config show
dev1: mac 52:54:00:12:34:56 link up link_announce false mtu 65535
negotiated_features CSUM GUEST_CSUM CTRL_GUEST_OFFLOADS MAC
GUEST_TSO4 GUEST_TSO6 GUEST_ECN GUEST_UFO HOST_TSO4 HOST_TSO6
HOST_ECN HOST_UFO MRG_RXBUF STATUS CTRL_VQ CTRL_RX CTRL_VLAN
GUEST_ANNOUNCE CTRL_MAC_ADDR RING_INDIRECT_DESC RING_EVENT_IDX
VERSION_1 ACCESS_PLATFORM
2) provision vDPA device with a subset of the features
# vdpa dev add name dev1 mgmtdev pci/0000:02:00.0 device_features 0x300020000
# dev1: mac 52:54:00:12:34:56 link up link_announce false mtu 65535
negotiated_features CTRL_VQ VERSION_1 ACCESS_PLATFORM
Reviewed-by: Eli Cohen <[email protected]>
Signed-off-by: Jason Wang <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_autoload.c')
0 files changed, 0 insertions, 0 deletions