fxp unusable after make world

[Bruce Simpson]

Pyun YongHyeon wrote:
> Your controller looks like i82550. 82550/82551 has nice hardware
> cryptographic capability for IPSec acceleration but it's not used
> at all under FreeBSD. Intel's open source developer manual didn't
> even mention the existence of cryptographic capability.
>   

I had a crack at this about 5-6 years ago.

Now that the descriptor ring format is fairly well known for fxp, reverse
engineering is feasible, as the setup uses the normal NDIS hooks which
Microsoft added for offloading cryptographic operations. Those *are*
documented.

Making it work is another matter entirely...