Re: [PATCH] ATA over Ethernet driver for 2.6.9

[Alan Cox <alan@lxorguk.ukuu.org.uk>]

On Llu, 2004-12-06 at 16:21, Jan-Benedict Glaw wrote:
> > Like IP, AoE is an ethernet-level network protocol, registered with
> > the IEEE.  Unlike IP, AoE is not routable.
> 
> So AoE is out of scope for many uses...

Take a look at their product range and you'll see the intended uses. For
those I'm not sure routability actually matters too much. In addition
you'd want to tunnel it on a shared LAN to add crypto.

> > +	n = lhget32(p+4);
> > +	n <<= 32;
> > +	return n |= lhget32(p);
> > +}
> 
> There are function available for this, look at the endianess header
> files.

Ed:
cpu_to_le32() and friends to be more exact. These also have the
advantage they've been optimised and are asm on some systems.

> After all, especially keeping in mind that AoE isn't routeable, my
> thinking is that this had better written as a (E)NBD server process
> running in userspace. This way, you'd use the in-kernel NBD driver (or
> the ENBD which isn't in the kernel) and you the the routing stuff for
> free :)

Different problem space IMHO.