Hi Daniele,
I've tested your patchset with the ALWAYS_INLINE included and saw no
performance regressions on PHY-to-PHY or PHY-to-vhost-user.
I also did VM-to-VM using vhost-user ports and ran the same
testcases I had for the kernel datapath. Some failed, of course,
because the feature isn't supported yet (algo=ftp, for instance, or
because it's an IP fragment), but otherwise I haven't noticed any
other issues.
Thanks,
fbl
On Fri, Apr 15, 2016 at 05:02:32PM -0700, Daniele Di Proietto wrote:
> This series aims to implement the ct() action for the dpif-netdev datapath.
> The bulk of the code is in the new conntrack module: it contains some packet
> parsing code, some lookup tables and the logic to implements all the ct bits.
>
> The conntrack module is helped by conntrack-tcp, for TCP window and flags
> tracking: the bulk of the code of this submodule is from the FreeBSD's pf
> subsystem, therefore is BSD licensed.
>
> The rest of the series integrates the connection tracker with the rest of
> OVS: the ct() action is implemented in dpif-netdev, and the debugging
> interfaces required by dpctl/{dump,flush}-conntrack are implemented.
>
> Besides adding some unit tests, this series ports the existing conntrack
> system test to the userspace datapath. Some small modifications are
> required to pass the testsuite, and some tests still have to be skipped.
>
> On newer kernels the userspace testsuite has some problems with offloads,
> so a workaround is included.
>
> This can also be downloaded at:
>
> https://github.com/ddiproietto/ovs/tree/userconntrack_20160415
>
> Any feedback is appreciated, thanks.
>
> v1 -> v2:
> * Fixed bug in tcp_get_wscale(), related to TCP options parsing.
> * Changed names of ICMP constants: now they're different from Linux and
> FreeBSD.
> * Fixed bug in parse_ipv6_ext_hdrs().
> * Used ALWAYS_INLINE in parse_vlan and parse_ethertype, to avoid a
> performance regression in miniflow_extract().
> * Updated copyright info in COPYING and debian/copyright.in.
> * Rebased.
> * Changed batching strategy in conntrack_execute() to allow a newly
> created connection to be picked up by packets in the same batch.
> * Added an ovs-test module to throw pcap files at the connection tracker.
> * Added a workaround for the userspace testsuite on new kernels and a tcp
> non-conntrack test.
>
> Daniele Di Proietto (15):
> packets: Define ICMP types.
> flow: Export parse_ipv6_ext_hdrs().
> flow: Introduce parse_dl_type().
> conntrack: New userspace connection tracker.
> tests: Add very simple conntrack benchmark.
> tests: Add test-conntrack pcap test.
> conntrack: Implement flush function.
> conntrack: Implement dumping to ct_entry.
> dpif-netdev: Execute conntrack action.
> dpif-netdev: Implement conntrack dump functions.
> dpif-netdev: Implement conntrack flush interface.
> tests: Add conntrack ofproto-dpif tests.
> system-tests: Disable offloads in userspace tests.
> system-tests: Add tcp simple test.
> system-tests: Run conntrack tests with userspace
>
> COPYING | 1 +
> debian/copyright.in | 4 +
> lib/automake.mk | 5 +
> lib/conntrack-other.c | 91 ++++
> lib/conntrack-private.h | 80 ++++
> lib/conntrack-tcp.c | 510 ++++++++++++++++++++
> lib/conntrack.c | 997
> +++++++++++++++++++++++++++++++++++++++
> lib/conntrack.h | 162 +++++++
> lib/dpif-netdev.c | 138 +++++-
> lib/flow.c | 154 +++---
> lib/flow.h | 4 +
> lib/packets.h | 14 +-
> tests/automake.mk | 1 +
> tests/dpif-netdev.at | 14 +-
> tests/ofproto-dpif.at | 698 ++++++++++++++++++++++++++-
> tests/system-common-macros.at | 1 +
> tests/system-kmod-macros.at | 35 ++
> tests/system-traffic.at | 69 ++-
> tests/system-userspace-macros.at | 63 ++-
> tests/test-conntrack.c | 232 +++++++++
> 20 files changed, 3164 insertions(+), 109 deletions(-)
> create mode 100644 lib/conntrack-other.c
> create mode 100644 lib/conntrack-private.h
> create mode 100644 lib/conntrack-tcp.c
> create mode 100644 lib/conntrack.c
> create mode 100644 lib/conntrack.h
> create mode 100644 tests/test-conntrack.c
>
> --
> 2.1.4
>
> _______________________________________________
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> dev@openvswitch.org
> http://openvswitch.org/mailman/listinfo/dev
--
fbl
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