On 23.08.2013 15:12, Harika Tandra wrote:
Hi all,
I agree with Andre's statement
A netmap consumer
typically doesn't expect packets be mangled at all, mostly likely netmap is
expressly used to get the packet exactly as they were seen on the wire.
For my application I want to see the whole packet as is (as seen on the wire).
I am sure it is important for many users who are interested in
using netmap for speedup of packet capture in network security/monitoring
applications.
When I disable "vlanhwfilter" flag on the interface. It is behaving as expected
and is
not stripping the Vlan tags when placed in promiscuous mode. Netmap seems to be
ignoring
his setting or is resetting this option someplace (??). Any suggestion on
where in Netmap
code this maybe ?
When you switch an interface to netmap mode it does a soft-reset first.
That reverts the vlanhwfilter configuration to default on. It's not
netmap that does it but the driver. It seems to happen in or around
ixgbe_setup_vlan_hw_support().
--
Andre
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