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Solved some spelling errors observed in the datapath code.
Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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The kernel datapath supports only port 4789 for VXLAN tunnel creation.
Added support in order to allow for the VXLAN tunnel port to be
configurable to any port number set by the userspace.
The patch also checks to see if an existing WFP filter, for the
necessary UDP tunnel port, is already created before adding a new one.
This is a double check, because currently the userspace also verifies
this, but it is necessary to avoid future issues.
Custom VXLAN tunnel port requires the addition of a new WFP filter
with the new UDP tunnel port. The creation of a new WFP filter is
triggered in OvsInitVxlanTunnel function and the removal of the WFP
filter in OvsCleanupVxlanTunnel function.
But the latter functions are running at IRQL = DISPATCH_LEVEL, due
to the NDIS RW lock acquisition, and all WFP calls must be running at
IRQL = PASSIVE_LEVEL. This is why I have created a system thread which
records all filter addition/removal requests into a list for later
processing by the system thread. The ThreadStart routine processes all
received requests at IRQL = PASSIVE_LEVEL, which is the required IRQL
for the necessary WFP calls for adding/removal of the WFP filters.
The WFP filter for the default VXLAN port 4789 is not added anymore at
filter attach. All WFP filters for the tunnel ports are added when the
tunnel ports are initialized and are removed at cleanup. WFP operation
status is then reported to userspace.
It is necessary that OvsTunnelFilterUninitialize function is called
after OvsClearAllSwitchVports in order to allow for the added WFP
filters to be removed. OvsTunnelFilterUninitialize function closes the
global engine handle used by most of the WFP calls, including filter
removal.
Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Reported-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Reported-at: https://github.com/openvswitch/ovs-issues/issues/66
Acked-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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The extension failed to be activated during booting due to the
failure to initialize tunnel filter. This happened because the Base
Filtering Engine (BFE) is not started and no session to the engine
could be acquired.
The solution for this was to registered a BFE notification callback
that is called whenever the BFE's state changes. Only if the BFE's
state is running the tunnel filter is initialized.
Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Reported-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Reported-at: https://github.com/openvswitch/ovs-issues/issues/77
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
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If the Base Filtering Engine (BFE) is not started, the WFP system
provider failed to be added because no session to the engine could
be acquired.
The solution for this was to registered a BFE notification callback
that is called whenever the BFE's state changes. Only if the BFE's
state is running the WFP system provider is added.
Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Reported-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Reported-at: https://github.com/openvswitch/ovs-issues/issues/65
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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This patch was enforced by the WHCK logo testing. In order to pass the
Windows Filtering Platform tests we need to add a persistent system
provider.
Signed-off-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Reported-by: Sorin Vinturis <svinturis@cloudbasesolutions.com>
Reported-at: https://github.com/openvswitch/ovs-issues/issues/65
Acked-by: Nithin Raju <nithin@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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