Re: Extremely slow network with e1000 & ip_conntrack

David S. Miller
2003-12-04T18:32:21Z

On Thu, 4 Dec 2003 09:37:19 -0800
"Feldman, Scott" <scott.feldman@intel.com> wrote:

> TSO is support on 82540. Turning off TSO is a workaround, but what's
> behind the dependency of TSO and ip_conntrack?

Netfilter wants to see the _real_ packets that will be sent onto the
wire. TSO is a template by which to create such packets, not the real
thing.

So when and if we go into netfilter, we must un-TSO the packet so
that netfilter can look at what it really wants to.