if_sk patch to get more info from people with problems

[Meno Abels]

Hello,

i tested the patch from Peter Edwards on my: 
ASUS K8V SE Deluxe
using 5.3-RC2/amd64 but the problem is still there.
First my dhclient didn't pick a number only after
ifconfig sk0 down/up. 
And my huge transfer test which run on 100baseFX, 
which transfers 200GB of data in both direction
is still not runs through. 
The same test on the same hardware with
fedora-2(linux) runs without any problem. 
So we still didn't got the point. It is better than before but
the problem is still there.
In my system there is also a cheap realtec nic also which 
get also in trouble with my transfer test. So it could be that 
our problem is not nic related but this is on an hypothesis.
I tried to compare the linux and the freebsd driver, but the linux driver
is more the complex in the scope of the freebsd driver.
I still get in dmesg some size errors and checksum
problems.

meno