linux-toradex.git/drivers/net/vxlan.c, branch v3.7

vxlan: Update hard_header_len based on lowerdev when instantiating VXLAN

2012-11-13T23:19:50+00:00

In the event of a VXLAN device being linked to a device that has a
hard_header_len greater than that of standard ethernet we could end up with
the hard_header_len not being large enough for outgoing frames.  In order to
prevent this we should update the length when a lowerdev is provided.

Signed-off-by: Alexander Duyck 
Acked-by: Stephen Hemminger 
Signed-off-by: David S. Miller

vxlan: fix a typo.

2012-11-13T22:14:06+00:00

Use eXtensible and not eXtensiable in the comment on top.

Signed-off-by: Rami Rosen 
Acked-by: Stephen Hemminger 
Signed-off-by: David S. Miller

vxlan: Fix error that was resulting in VXLAN MTU size being 10 bytes too large

2012-11-13T19:36:50+00:00

This change fixes an issue I found where VXLAN frames were fragmented when
they were up to the VXLAN MTU size.  I root caused the issue to the fact that
the headroom was 4 + 20 + 8 + 8.  This math doesn't appear to be correct
because we are not inserting a VLAN header, but instead a 2nd Ethernet header.
As such the math for the overhead should be 20 + 8 + 8 + 14 to account for the
extra headers that are inserted for VXLAN.

Signed-off-by: Alexander Duyck 
Signed-off-by: David S. Miller

vxlan: don't expire permanent entries

2012-10-31T17:42:12+00:00

VXLAN confused flag versus bitmap on state.
Based on part of a earlier patch by David Stevens.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

vxlan: fix oops when give unknown ifindex

2012-10-11T02:41:22+00:00

If vxlan is created and the ifindex is passed; there are two cases which
are incorrectly handled by the existing code. The ifindex could be zero
(i.e. no device) or there could be no device with that ifindex.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

vxlan: fix receive checksum handling

2012-10-11T02:41:22+00:00

Vxlan was trying to use postpull_rcsum to allow receive checksum
offload to work on drivers using CHECKSUM_COMPLETE method. But this
doesn't work correctly. Just force full receive checksum on received
packet.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

vxlan: add additional headroom

2012-10-11T02:41:22+00:00

Tell upper layer protocols to allocate skb with additional headroom.
This avoids allocation and copy in local packet sends.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

vxlan: allow configuring port range

2012-10-11T02:41:21+00:00

VXLAN bases source UDP port based on flow to help the
receiver to be able to load balance based on outer header flow.

This patch restricts the port range to the normal UDP local
ports, and allows overriding via configuration.

It also uses jhash of Ethernet header when looking at flows
with out know L3 header.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

vxlan: associate with tunnel socket on transmit

2012-10-11T02:41:21+00:00

When tunnelling a skb, associate it with the tunnel socket.
This allows parameters set on tunnel socket (like multicast loop
flag), to be picked up by ip_output.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller

vxlan: use ip_route_output

2012-10-11T02:41:21+00:00

Select source address for VXLAN packet based on route destination
and don't lie to route code. VXLAN is not GRE.

Signed-off-by: Stephen Hemminger 
Signed-off-by: David S. Miller