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While testing OVS-windows for multiple IPV6 Geneve tunnels on Windows2019VM,
for the broadcast/mutlicast packets, it needs to flood out via configured
multiple Geneve tunnels. Then in some flow pipeline processing, it may have
at least two tunnel processing in OVS_ACTION_ATTR_SET action. When processing
the second tunnel setting it may need flush out the packet out via tunnel before
setting new tunnel parameter in tunKey. We found in this case, after flushing out
the packet out via tunnel, the related layers pointer does not update. In our
test setup on Windows2019VM, it will cause BSOD which is triggered in other Windows
processes. We suspect it may be related to memory overwriting. When we apply the
fix in the patch, no BSOD is observed on the same VM and same packet/tunnel settting.
Another thing needs to be mentioned is for multiple Geneve IPv4 tunnels, the same
kind broadcase/multicast packet will not cause BSOD.
Signed-off-by: Wilson Peng <pweisong@vmware.com>
Signed-off-by: Alin-Gabriel Serdean <aserdean@ovn.org>
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In the first step OVS Windows will support IPv6 tunnel(Geneve IPv6 tunnel).
Implementation on Windows
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1. For the IPv6 tunnel support, OvsIPTunnelKey will replace original
OvsIPv4TunnelKey in the related flow context handing.
2. The related src and dst address will be changed to SOCKADDR_INET type from UINT32.
3. For the IPv6 tunnel, one node running OVS-Windows could encapsulate IPv4/IPv6
Packets via IPV6 Geneve Tunnel, and the node could also encapsulate IPv4/IPv6 packet
Via IPv4 Geneve tunnel.
4. Related IPHelper data structure will be adapted to support IPv6 Tunnel. In the IPHelper
part the related Windows API(such as GetUnicastIpAddressTable/GetBestRoute2/GetIpNetEntry2/
ResolveIpNetEntry2) and Windows data structure(MIB_IPFORWARD_ROW2/MIB_IPNET_ROW2/IP_ADDRESS_PREFIX)
Have already supported both IPv4 and IPV6. Now OVS Windows has been adjusted some functions
And data structured to support IPV6 tunnel also.
5. OVS_TUNNEL_KEY_ATTR_IPV6_SRC and OVS_TUNNEL_KEY_ATTR_IPV6_DST filed will be supported in
OVS-Windows kernel for IPV6 tunnel.
Testing done.
-------------------------
Related topo, 1 Windows VM(Win2019) and 2 Ubuntu 16.04 server. Both VMs
Are running on one ESX host.
1. Setup one IPV6 Geneve Tunnel between 1 Windows VM and 1 Ubuntu server.
Windows VM, vif0( 6000::2/40.1.1.10) vif1(5000::2)—— Ubuntu VM Eth2(5000::9), name space ns1
with interface ns1_link_peer(6000::9/40.1.1.2)
Related tunnnel,
ovs-vsctl.exe add-port br-int bms-tun0 -- set interface bms-tun0 type=Geneve options:csum=true
options:key=flow options:local_ip="5000::2" options:remote_ip=flow
In this topo, traffic from Vif0(Win) to ns1_link_peer(Ubuntu) will be gone through the Geneve tunnel
(5000::2—>5000::9) for both IPv4 traffic(40.1.1.10-->40.1.1.2) and IPv6 traffic(6000::2—>6000::9)
2. Setup one IPV4 Geneve Tunnel between Windows VM and 1 Ubuntu server.
Windows VM, vif0( 6000::2/40.1.1.10) vif1(50.1.1.11)—— Ubuntu, Eth2(50.1.1.9), name space ns1
with interface ns1_link_peer(6000::19/40.1.1.9)
Related tunnnel,
ovs-vsctl.exe -- set Interface bms-tun0 type=geneve options:csum=true options:key=flow
options:local_ip="50.1.1.11" options:remote_ip=flow
In this topo, traffic from Vif0(Win) to ns1_link_peer(Ubuntu) will be gone through the Geneve Tunnel
(50.1.1.11—>50.1.1.9) for both IPv4 traffic(40.1.1.10-->40.1.1.9) and IPv6 traffic(6000::2—>6000::19).
3.Regression test for IpV4 in Antrea project (about 60 test case) is PASS
Future Work
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Add other type IPv6 tunnel support for Gre/Vxlan/Stt.
Signed-off-by: Wilson Peng <pweisong@vmware.com>
Signed-off-by: Alin-Gabriel Serdean <aserdean@ovn.org>
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Signed-off-by: Nithin Raju <nithin@vmware.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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Signed-off-by: Yin Lin <linyi@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>
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*Added OvsExtractLayers - populates only the layers field without unnecessary
memory operations for flow part
*If in STT header the flags are 0 then force packets checksums calculation
on receive.
*Ensure correct pseudo checksum is set for LSO both on send and receive.
Linux includes the segment length to TCP pseudo-checksum conforming to
RFC 793 but in case of LSO Windows expects this to be only on
Source IP Address, Destination IP Address, and Protocol.
*Fragment expiration on rx side of STT was set to 30 seconds, but the correct
timeout would be TTL of the packet
Signed-off-by: Paul-Daniel Boca <pboca@cloudbasesolutions.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
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Move this function out from file scope.
Signed-off-by: Nithin Raju <nithin@vmware.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Signed-off-by: Joe Stringer <joe@ovn.org>
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Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
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Recirculation support for the OVS extension.
Tested using PING and iperf with Driver Verifier enabled.
Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Co-authored-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Reported-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Reported-at: https://github.com/openvswitch/ovs-issues/issues/104
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
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This patch adds OVS_KEY_ATTR_SCTP to the OVS flow mechanism.
Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
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This reverts commit a26b2023ce33fed1ef962012dc2c03765d2e92cb.
This patch punishes performance without the implementation of
megaflows on Windows.
Once megaflows is implemented in the flow logic this patch will be
revisited.
Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Acked-by: Sairam Venugopal <vsairam@vmware.com>
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
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This patch adds OVS_KEY_ATTR_TCP_FLAGS to our flow mechanism.
Also clean unecesarry parts of code.
Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Co-authored-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
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Extend the key and tunnel key conversion to nested NL format functions use the
NL attribute as a parameter so we can use them for missed packet formatting.
Add functions for calculating the space needed for storing the key and the
tunnel key in NL format
Signed-off-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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In this patch we have implemented the flow get.
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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In this patch we have added basic changes for
handler registeration for FLOW_GET command.
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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OvsFlowNlNewCmdHandler NEW/DEL/SET/FLUSH commands hence renaming it to
OvsFlowNlCmdHandler.
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Acked-by: Samuel Ghinet <sghinet@cloudbasesolutions.com>
Tested-by: Ankur Sharma <ankursharma@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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Added changes to handle DEL_FLOWS (FLUSH) scenario.
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Acked-by: Samuel Ghinet <sghinet@cloudbasesolutions.com>
Tested-by: Ankur Sharma <ankursharma@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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This patch covers the changes needed to support FLOW_NEW command.
API _OvsFlowMapNlToFlowPutFlags has a bug, which will be fixed
with the patches for FLOW_DEL.
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Acked-by: Samuel Ghinet <sghinet@cloudbasesolutions.com>
Tested-by: Ankur Sharma <ankursharma@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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This patch covers basic changes in registering add flow handler.
And declaring FLOW related attribute parsing policies.
Signed-off-by: Ankur Sharma <ankursharma@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Acked-by: Samuel Ghinet <sghinet@cloudbasesolutions.com>
Tested-by: Ankur Sharma <ankursharma@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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This patch includes the file renaming and accommodations needed for the file
renaming to build the forwarding extension for Hyper-V.
This patch is also a follow-up for the thread:
http://openvswitch.org/pipermail/dev/2014-August/044005.html
Signed-off-by: Samuel Ghinet <sghinet@cloudbasesolutions.com>
Co-authored-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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