Messages in this thread | ![/](/images/icornerl.gif) | | From | Bobby Eshleman <> | Subject | [PATCH RFC 0/3] vsock: add support for sockmap | Date | Wed, 18 Jan 2023 12:27:39 -0800 |
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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.
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%) - 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. The loopback transport was used in writing bpf/selftests, but not thoroughly tested otherwise.
This series requires the skb patch.
To: Stefan Hajnoczi <stefanha@redhat.com> To: Stefano Garzarella <sgarzare@redhat.com> To: "Michael S. Tsirkin" <mst@redhat.com> To: Jason Wang <jasowang@redhat.com> To: "David S. Miller" <davem@davemloft.net> To: Eric Dumazet <edumazet@google.com> To: Jakub Kicinski <kuba@kernel.org> To: Paolo Abeni <pabeni@redhat.com> To: Andrii Nakryiko <andrii@kernel.org> To: Mykola Lysenko <mykolal@fb.com> To: Alexei Starovoitov <ast@kernel.org> To: Daniel Borkmann <daniel@iogearbox.net> To: Martin KaFai Lau <martin.lau@linux.dev> To: Song Liu <song@kernel.org> To: Yonghong Song <yhs@fb.com> To: John Fastabend <john.fastabend@gmail.com> To: KP Singh <kpsingh@kernel.org> To: Stanislav Fomichev <sdf@google.com> To: Hao Luo <haoluo@google.com> To: Jiri Olsa <jolsa@kernel.org> To: Shuah Khan <shuah@kernel.org> Cc: linux-kernel@vger.kernel.org Cc: kvm@vger.kernel.org Cc: virtualization@lists.linux-foundation.org Cc: netdev@vger.kernel.org Cc: bpf@vger.kernel.org Cc: linux-kselftest@vger.kernel.org Signed-off-by: Bobby Eshleman <bobby.eshleman@bytedance.com>
--- 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 <bobby.eshleman@bytedance.com>
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