impossible go through udma2 mode

I use mandrake10.1 with the default kernel (2.6.8-12mdk).

I have a Asus A2H notebook with chipset SIS5513 with a hda IC25N060ATMR=
04-0,=20
ATA DISK drive.
I want to start to say that in windows get my hdd in udma5 (100 MB/s) a=
nd in=20
linux its impossible to go up of the udma2 (33,3 MB/S).

I have been trying to figure out why in linux i cant use the udma mode =
2.
So i runed hdparm -X69 -d1 -u1 -m16 -c1 /dev/hda

then i run hdparm -i /dev/hda to see the info about and get this:
/dev/hda:

Model=3DIC25N060ATMR04-0, FwRev=3DMO3OAD0A, SerialNo=3DMRG366K3GKUJGH
Config=3D{ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=3D16383/16/63, TrkSize=3D0, SectSize=3D0, ECCbytes=3D4
BuffType=3DDualPortCache, BuffSize=3D7884kB, MaxMultSect=3D16, MultSec=
t=3D16
CurCHS=3D16383/16/63, CurSects=3D16514064, LBA=3Dyes, LBAsects=3D11721=
0240
IORDY=3Don/off, tPIO=3D{min:240,w/IORDY:120}, tDMA=3D{min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2 udma3 udma4 udma5
AdvancedPM=3Dyes: mode=3D0x80 (128) WriteCache=3Denabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a:
* signifies the current active mode

Like you see continues in udma2!

After, i resolve just run :
~ ]# hdparm -X69 -d1 /dev/hda

/dev/hda:
setting using_dma to 1 (on)
setting xfermode to 69 (UltraDMA mode5)
using_dma =3D 1 (on)

and then do:
~]# dmesg|tail
Neighbour table overflow.
Neighbour table overflow.
Neighbour table overflow.
Neighbour table overflow.
Neighbour table overflow.
Neighbour table overflow.
Neighbour table overflow.
Neighbour table overflow.
Neighbour table overflow.
ide0: Speed warnings UDMA 3/4/5 is not functional.


To dissipate all my doubts i went to windows and saw that it runs in ud=
ma5.
So thats why the rate transfers in windows are faster than in linux.

How can this be possible?
Why this happens?


greetings,
z=E9
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Re: impossible go through udma2 mode

On Sun, 6 Feb 2005 07:14:52 +0000, you wrote:

>I use mandrake10.1 with the default kernel (2.6.8-12mdk).
>
>I have a Asus A2H notebook with chipset SIS5513 with a hda IC25N060ATMR04-0,
^^^^^^^ you certain of that number?

I checked http://www.asus.com/prog/spec.asp?langs=01&m=A2000H%20Series

Is that the machine?

Note: "hdparm -i /dev/hda" reports the drive settings reported by
the drive on startup -- use "hdparm -I /dev/hda |less" to see the
current drive settings, perhaps you will be surprised? UDMA2 is
fastest speed compatible with 40 & 80 way ribbon.

Next, I'd look at recompiling the kernel to suit your hardware to
get the proper driver in place.

Cheers,
Grant.

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