Hi Bobby,
On Wed, Jan 18, 2023 at 12:27:39PM -0800, Bobby Eshleman wrote:
Add support for sockmap to vsock.
We're testing usage of vsock as a way to redirect guest-local UDS requests to
the host and this patch series greatly improves the performance of such a
setup.
Compared to copying packets via userspace, this improves throughput by 221% in
basic testing.
Cool, nice series!
Tested as follows.
Setup: guest unix dgram sender -> guest vsock redirector -> host vsock server
Threads: 1
Payload: 64k
No sockmap:
- 76.3 MB/s
- The guest vsock redirector was
"socat VSOCK-CONNECT:2:1234 UNIX-RECV:/path/to/sock"
Using sockmap (this patch):
- 168.8 MB/s (+221%)
Assuming the absolute value is correct, there is a typo here, it would
be +121% right?
- The guest redirector was a simple sockmap echo server,
redirecting unix ingress to vsock 2:1234 egress.
- Same sender and server programs
Only the virtio transport has been tested.
I think is fine for now.
The loopback transport was used in
writing bpf/selftests, but not thoroughly tested otherwise.
I did a quick review mainly for vsock stuff.
Hoping others can take a better look at net/vmw_vsock/vsock_bpf.c, since
I'm not very familiar with that subsystem.
FYI I will be off the next two weeks (till Feb 7) with limited internet
access.
Thanks,
Stefano
This series requires the skb patch.
To: Stefan Hajnoczi <[email protected]>
To: Stefano Garzarella <[email protected]>
To: "Michael S. Tsirkin" <[email protected]>
To: Jason Wang <[email protected]>
To: "David S. Miller" <[email protected]>
To: Eric Dumazet <[email protected]>
To: Jakub Kicinski <[email protected]>
To: Paolo Abeni <[email protected]>
To: Andrii Nakryiko <[email protected]>
To: Mykola Lysenko <[email protected]>
To: Alexei Starovoitov <[email protected]>
To: Daniel Borkmann <[email protected]>
To: Martin KaFai Lau <[email protected]>
To: Song Liu <[email protected]>
To: Yonghong Song <[email protected]>
To: John Fastabend <[email protected]>
To: KP Singh <[email protected]>
To: Stanislav Fomichev <[email protected]>
To: Hao Luo <[email protected]>
To: Jiri Olsa <[email protected]>
To: Shuah Khan <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Bobby Eshleman <[email protected]>
---
Bobby Eshleman (3):
vsock: support sockmap
selftests/bpf: add vsock to vmtest.sh
selftests/bpf: Add a test case for vsock sockmap
drivers/vhost/vsock.c | 1 +
include/linux/virtio_vsock.h | 1 +
include/net/af_vsock.h | 17 ++
net/vmw_vsock/Makefile | 1 +
net/vmw_vsock/af_vsock.c | 59 ++++++-
net/vmw_vsock/virtio_transport.c | 2 +
net/vmw_vsock/virtio_transport_common.c | 22 +++
net/vmw_vsock/vsock_bpf.c | 180 +++++++++++++++++++++
net/vmw_vsock/vsock_loopback.c | 2 +
tools/testing/selftests/bpf/config.x86_64 | 4 +
.../selftests/bpf/prog_tests/sockmap_listen.c | 163 +++++++++++++++++++
tools/testing/selftests/bpf/vmtest.sh | 1 +
12 files changed, 447 insertions(+), 6 deletions(-)
---
base-commit: f12f4326c6a75a74e908714be6d2f0e2f0fd0d76
change-id: 20230118-support-vsock-sockmap-connectible-2e1297d2111a
Best regards,
--
Bobby Eshleman <[email protected]>
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