Re: [PATCH] ATA over Ethernet driver for 2.6.9
From: Alan Cox (alan_at_lxorguk.ukuu.org.uk)
Date: 12/06/04
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To: Jan-Benedict Glaw <jbglaw@lug-owl.de> Date: Mon, 06 Dec 2004 16:11:59 +0000
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.
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- Previous message: Alan Cox: "Re: [PATCH] ATA over Ethernet driver for 2.6.9"
- In reply to: Jan-Benedict Glaw: "Re: [PATCH] ATA over Ethernet driver for 2.6.9"
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