Subject: Re: wm0 troubles
To: Steven M. Bellovin <email@example.com>
From: Thor Lancelot Simon <firstname.lastname@example.org>
Date: 12/24/2007 04:21:41
On Sun, Dec 23, 2007 at 04:08:13PM -0500, Steven M. Bellovin wrote:
> The problem appears to be from 1.150 of if_wm.c; when I revert it to
> 1.149, my speed doubles. The commit message refers to 82543 and newer
> chips, and claims a 4x speed improvement.
No, it doesn't (claim a 4x speed improvement). If your system is
dropping interrupts, however, this change make it considerably worse,
since there will now be many, many less interrupts (!). If there's not
such a problem, I'm of course interested in fixing whatever is wrong,
One quick thing you could try is to set RADV, RDTR, TIDV, and TADV all
to zero, and let me know what happens.
> My problems are on an 82801H and a 82540EP.
What PHY is detected and attached for each of these?
Can you post a complete dmesg, please?
Thor Lancelot Simon email@example.com
"The inconsistency is startling, though admittedly, if consistency is to
be abandoned or transcended, there is no problem." - Noam Chomsky