xen: Fix xen server crash in ping broadcast from vm

- Ping broadcast causes xen server to crash. The fix is to make network header
  offset calculation proper for 32bit host (xenserver).

Signed-off-by: Anirban Chakraborty <abchak@juniper.net>
Fix whitespace issue

Signed-off-by: Anirban Chakraborty <abchak@juniper.net>
Merge pull request #16 from anirban-c/master

xen: Fix for server crash
Don't validate NH index for flow delete requests
Merge pull request #17 from ashoksr/master

Don't validate NH index for flow delete requests
[Double commit]

-Should not touch checksum type and value, if it is really not required.
One side effect was that we were overwriting the field indicating that
checksum is unnecessary.

For mpls over udp, we calculate checksum of the entire packet and store it in
udp header. In the receiving end, we will verify the outer checksum, and mark
the packet as one where calculation of checksum is unnecessary, indicating to
the vm that it should not calculate checksum of the inner packet (since inner
packet checksum was not calculated even at the sending end). Once the type was
overwritten, packets were dropped in vm.
1) Not freeing the Bridge table memory as part of soft_reset 2) Adding module parameters for the bridge entries 3) Stopping the init incase of failures
Merge pull request #19 from Juniper/soft_reset

1) Not freeing the Bridge table memory as part of soft_reset 2) Adding m...
Merge pull request #18 from Juniper/mplsoudp

[Double commit]
xen: Fix pkt tail comparison for 32 bit systems

- Issue detected from compilation warning

Signed-off-by: Anirban Chakraborty <abchak@juniper.net>
Merge pull request #20 from anirban-c/master

xen: Fix pkt tail comparison for 32 bit systems