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List:       linux-kernel
Subject:    Re: siimage 1.06 in kernel 2.6
From:       Brien <admin () brien ! com>
Date:       2003-08-31 22:49:08
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Hi,

Just wondering if maybe DMA mode isn't on when you get this "~1.5MB/s" speeds, 
regardless of the driver version (maybe one doesn't set it automatically) (?)

Do you use hdparm to get these speeds? Check if DMA is on by using hdparm -i 
/dev/hd? (change to your device of course) , if it's not try e.g. hdparm -d1 
-X66 /dev/hd? (X66=ultra DMA 2 if your device supports that or even try 
multiword, example X34=multiword DMA 2)

Brien

On Monday 01 September 2003 05:51 pm, JD Gray wrote:
> I use an SiS SATA controller that uses the siimage driver
> (drivers/ide/pci/siimage.c) I have an -ac 2.4 kernel that uses version
> 1.06 of this driver, and it works very well (~65MB/s). Kernel 2.6 on the
> other hand has version 1.02 of this driver which gets very poor
> preformance (~1.5MB/s.) I would like to know if anyone is working on
> getting 1.06 into the 2.6 kernel. (I've tried several ways to get it
> working including copying the .c straight from my kernel and patch
> posted on this mailing list. Neither worked, it wouldn't compile either
> time.) If no one is, then this is a request per say. If anyone has time
> and/or is able to put this new driver into the 2.6 kernel I would be
> greatly thankful. Thanks alot
> -JD Gray
> (KahdgarXI)
>
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