Re: [PATCH] flow-dissector: Fix alignment issue in __skb_flow_get_ports

On Fri, 2014-10-10 at 14:57 +0000, David Laight wrote:

I think there is code to copy the IP and TCP headers to aligned memory
before they are parsed.

There is no such thing. You are here on netdev list, please read the
code before doing such claims.

...

quoted

The problem is the igb / ixgbe / fm10k hardware doesn't have a means of
inserting padding from its side...

Shoot the hardware engineers.

You aren't going to get the performance you expect from a 10Ge card
unless the rx buffers are 'correctly' aligned.

That is simply not true on current x86 cpus. They simply dont care at
all.

You cannot blame Intel for other arches.