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tunnel vports
Upstream commit:
commit 4b5b9ba553f9aa5f484ab972fc9b58061885ceca
Author: Martynas Pumputis <martynas@weave.works>
Date: Tue Aug 9 16:24:50 2016 +0100
openvswitch: do not ignore netdev errors when creating tunnel vports
The creation of a tunnel vport (geneve, gre, vxlan) brings up a
corresponding netdev, a multi-step operation which can fail.
For example, changing a vxlan vport's netdev state to 'up' binds the
vport's socket to a UDP port - if the binding fails (e.g. due to the
port being in use), the error is currently ignored giving the
appearance that the tunnel vport creation completed successfully.
Signed-off-by: Martynas Pumputis <martynas@weave.works>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
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upstream dev_fill_metadata_dst() uses upstream tunnel-dst which could
be different from OVS defined tun-dst. Therefore use fill-meta-data
function from compat layer.
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
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upstream tunnel egress info is retrieved using ndo_fill_metadata_dst.
Since we do not have it on older kernel we need to keep vport operation
to do same on these kernels.
Following patch try to merge these to operations into one to avoid code
duplication.
This commit backports fc4099f1 ("openvswitch:
Fix egress tunnel info.")
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
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Upstream commit:
After 614732eaa12d, no refcount is maintained for the vport-vxlan module.
This allows the userspace to remove such module while vport-vxlan
devices still exist, which leads to later oops.
v1 -> v2:
- move vport 'owner' initialization in ovs_vport_ops_register()
and make such function a macro
Fixes: 614732eaa12d ("openvswitch: Use regular VXLAN net_device device")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 83e4bf7a74 ("openvswitch: properly refcount vport-vxlan
module").
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@kernel.org>
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Following patch adds support for lwtunnel to OVS datapath.
With this change OVS datapath detect lwtunnel support and
make use of new APIs if available. On older kernel where the
support is not there the backported tunnel modules are used.
These backported tunnel devices acts as lwtunnel devices.
I tried to keep backported module same as upstream for easier
bug-fix backport. Since STT and LISP are not upstream OVS
always needs to use respective modules from tunnel compat layer.
To make it work on kernel 4.3 I have converted STT and LISP
modules to lwtunnel API model.
lwtunnel make use of skb-dst to pass tunnel information to the
tunnel module. On older kernel this is not possible. So the in
case of old kernel metadata ref is stored in OVS_CB and direct
call to tunnel transmit function is made by respective tunnel
vport modules. Similarly on receive side tunnel recv directly
call netdev-vport-receive to pass the skb to OVS.
Major backported components include:
Geneve, GRE, VXLAN, ip_tunnel, udp-tunnels GRO.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Joe Stringer <joe@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
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Fixes typo in STT sampling code.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
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The Stateless TCP Tunnel (STT) protocol encapsulates traffic in
IPv4/TCP packets.
STT uses TCP segmentation offload available in most of NIC. On
packet xmit STT driver appends STT header along with TCP header
to the packet. For GSO packet GSO parameters are set according
to tunnel configuration and packet is handed over to networking
stack. This allows use of segmentation offload available in NICs
The protocol is documented at
http://www.ietf.org/archive/id/draft-davie-stt-06.txt
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
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