Date: Thu, 24 Mar 2005 11:29:46 -0500
To: Asfand Yar Qazi <ay1204@qazi.f2s.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: How's the nforce4 support in Linux?
Message-ID: <20050324162946.GK17865@csclub.uwaterloo.ca>
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From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
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On Thu, Mar 24, 2005 at 10:00:46AM +0000, Asfand Yar Qazi wrote:
> http://www.neoseeker.com/Articles/Hardware/Previews/nvnforce4/3.html
> 
> You're right there - some semi-hardware support combined with drivers 
> apparently result in lower CPU usage that software firewalls.  Apparently.
> 
> Actually, these people like it:
> http://www.bjorn3d.com/read.php?cID=712&pageID=1096
> 
> However one feature that you can't laugh at is the fact that it can be 
> made to block packets in the span of time between the OS being loaded 
> up, and the "real" firewall coming up.  This small time span 
> theoretically leaves the PC vulnerable, so I think this is the only 
> use for "ActiveAmor Firewall".

Until the OS loads network drivers AND configures IP support AND starts
accepting packets in, there is nothing for the firewall to do.
Certainly on Linux I can make sure iptables is populated (or least has a
sane policy set) before I bring up networking.  In other words: "Who
cares".

> However, this doesn't answer my original question (which I suppose I 
> should have made clearer): can I get SATA II NCQ support in Linux with 
> an nForce 4 chipset?

Don't know.  I think 3ware's controllers do their own NCQ, which is
pretty neat.

Len Sorensen
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