[solved] cannot enable HD DMA-modes

**WalGrom** · 04-29-2005

Hi.

I've got an ASUS P4P800 Deluxe Mainboard with Intel ICH5R South Bridge
and am unable to enable DMA-modes on my storage-devices:
IDE:
1st - master, /dev/hda Harddrive
2nd - master, /dev/hdc DVD-Rewriter
2nd - slave, /dev/hdd DVD-ROM

S-ATA: /dev/sda Harddrive

hdparm informations are a little bit confusing for me.
hdparm -i DEVICE shows DMA as enabled
hdparm DEVICE says that DMA is deactivated.

primary IDE-Master

Code:

speedy&#58;/home/stephan# hdparm -i /dev/hda

/dev/hda&#58;

 Model=Maxtor 6Y080L0, FwRev=YAR41BW0, SerialNo=Y2NN3DCE
 Config=&#123; Fixed &#125;
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=off
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=160086528
 IORDY=on/off, tPIO=&#123;min&#58;120,w/IORDY&#58;120&#125;, tDMA=&#123;min&#58;120,rec&#58;120&#125;
 PIO modes&#58;  pio0 pio1 pio2 pio3 pio4
 DMA modes&#58;  mdma0 mdma1 mdma2
 UDMA modes&#58; udma0 udma1 udma2 udma3 udma4 *udma5 udma6
 AdvancedPM=yes&#58; disabled &#40;255&#41; WriteCache=enabled
 Drive conforms to&#58; &#40;null&#41;&#58;

 * signifies the current active mode

speedy&#58;/home/stephan# hdparm /dev/hda

/dev/hda&#58;
 multcount    =  0 &#40;off&#41;
 IO_support   =  0 &#40;default 16-bit&#41;
 unmaskirq    =  0 &#40;off&#41;
 using_dma    =  0 &#40;off&#41;
 keepsettings =  0 &#40;off&#41;
 readonly     =  0 &#40;off&#41;
 readahead    = 256 &#40;on&#41;
 geometry     = 65535/16/63, sectors = 160086528, start = 0

SATA-Harddrive (160 GB Samsung)

Code:

speedy&#58;/home/stephan# hdparm -i /dev/sda

/dev/sda&#58;
 HDIO_GET_IDENTITY failed&#58; Invalid argument
speedy&#58;/home/stephan# hdparm /dev/sda

/dev/sda&#58;
 readonly     =  0 &#40;off&#41;
 readahead    = 256 &#40;on&#41;
 geometry     = 19457/255/63, sectors = 312581808, start = 0

DVD-Writer (sec. IDE-Master)

Code:

speedy&#58;/home/stephan# hdparm -i /dev/hdc

/dev/hdc&#58;

 Model=HL-DT-ST DVDRAM GSA-4163B, FwRev=A102, SerialNo=K0551KK4452
 Config=&#123; Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic &#125;
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=0kB, MaxMultSect=0
 &#40;maybe&#41;&#58; CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
 IORDY=on/off, tPIO=&#123;min&#58;120,w/IORDY&#58;120&#125;, tDMA=&#123;min&#58;120,rec&#58;120&#125;
 PIO modes&#58;  pio0 pio3 pio4
 DMA modes&#58;  mdma0 mdma1 mdma2
 UDMA modes&#58; udma0 udma1 *udma2
 AdvancedPM=no
 Drive conforms to&#58; device does not report version&#58;

 * signifies the current active mode

speedy&#58;/home/stephan# hdparm /dev/hdc

/dev/hdc&#58;
 IO_support   =  0 &#40;default 16-bit&#41;
 unmaskirq    =  0 &#40;off&#41;
 using_dma    =  0 &#40;off&#41;
 keepsettings =  0 &#40;off&#41;
 readonly     =  0 &#40;off&#41;

DVD-ROM (sec. IDE-Slave)

Code:

speedy&#58;/home/stephan# hdparm -i /dev/hdd

/dev/hdd&#58;

 Model=_NEC DV-5800C, FwRev=D9S2, SerialNo=
 Config=&#123; Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic &#125;
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=0kB, MaxMultSect=0
 &#40;maybe&#41;&#58; CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
 IORDY=yes, tPIO=&#123;min&#58;227,w/IORDY&#58;120&#125;, tDMA=&#123;min&#58;120,rec&#58;120&#125;
 PIO modes&#58;  pio0 pio1 pio2 pio3 pio4
 DMA modes&#58;  mdma0 mdma1 mdma2
 UDMA modes&#58; udma0 udma1 *udma2
 AdvancedPM=no
 Drive conforms to&#58; device does not report version&#58;

 * signifies the current active mode

speedy&#58;/home/stephan# hdparm /dev/hdd

/dev/hdd&#58;
 IO_support   =  0 &#40;default 16-bit&#41;
 unmaskirq    =  0 &#40;off&#41;
 using_dma    =  0 &#40;off&#41;
 keepsettings =  0 &#40;off&#41;
 readonly     =  0 &#40;off&#41;
 readahead    = 256 &#40;on&#41;
 HDIO_GETGEO failed&#58; Invalid argument

Some Speed tests here:

Code:

speedy&#58;/home/stephan# hdparm -tT /dev/hda

/dev/hda&#58;
 Timing cached reads&#58;   4008 MB in  2.00 seconds = 2003.30 MB/sec
 Timing buffered disk reads&#58;   12 MB in  3.44 seconds =   3.48 MB/sec

speedy&#58;/home/stephan# hdparm -tT /dev/sda

/dev/sda&#58;
 Timing cached reads&#58;   4068 MB in  2.00 seconds = 2034.31 MB/sec
 Timing buffered disk reads&#58;  176 MB in  3.02 seconds =  58.19 MB/sec

speedy&#58;/home/stephan# hdparm -tT /dev/hdc

/dev/hdc&#58;
 Timing cached reads&#58;   3988 MB in  2.00 seconds = 1993.31 MB/sec
 Timing buffered disk reads&#58;    6 MB in  3.20 seconds =   1.88 MB/sec

speedy&#58;/home/stephan# hdparm -tT /dev/hdd

/dev/hdd&#58;
 Timing cached reads&#58;   4004 MB in  2.00 seconds = 2001.30 MB/sec
 Timing buffered disk reads&#58;   12 MB in  3.34 seconds =   3.59 MB/sec

I don't know if the S-ATA drive speed is correct but all the others are far too slow.

If I try to enable DMA on the cd DVD-Rewriter for example it results in the following error message:

Code:

speedy&#58;/usr/src/linux# hdparm -d1 -X udma2 /dev/hdc

/dev/hdc&#58;
 setting using_dma to 1 &#40;on&#41;
 HDIO_SET_DMA failed&#58; Operation not permitted
 setting xfermode to 66 &#40;UltraDMA mode2&#41;
 using_dma    =  0 &#40;off&#41;

I suppose there's something wrong with the south bridges chipset driver module piix and ata_piix:

Code:

speedy&#58;/usr/src/linux# lsmod | grep -E "pii"
piix                   13824  1
ide_core              142556  4 piix,ide_generic,ide_disk,ide_cd
ata_piix                8388  4
libata                 42116  1 ata_piix

Thank you very much for any advice,
Stephan

P.S.:
I am running debian sarge with kernel 2.6.8-2 in SMP-mode.

**WalGrom** · 04-30-2005

Problem is solved by inserting the IDE+SATA chipset drivers first in
/etc/modules.
In my case this is

Code:

ata_piix
piix
ide_.....
....

These modules where loaded anyways but too late.
By inserting the into /etc/modules kernel will merge them at the right time
(before loading module ide_generic - that's important).

Thread Tools

Display

[solved] cannot enable HD DMA-modes

Posting Permissions