On 12/01/02 at 09:11 AM Amit spake thusly:
>i got the following output which says something about udma0 udma1 and
>*udma2. i couldn't understand if *udma2 is same as udma2. also it is
>giving same errors with X66 X68 and X69. i have checked the seagate's
>website it is ATA/100 which probably is same as udma5. but it isn't coming
>up also in hdparm -i.
>is some kind of change in settings is required for it.
>
># hdparm -i /dev/hdc
>
>/dev/hdc:
>
> Model=ST340016A, FwRev=3.19, SerialNo=3HS5EP11
> Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
> RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
> BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16
> CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78165360
> IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
> PIO modes: pio0 pio1 pio2 pio3 pio4
> DMA modes: mdma0 mdma1 mdma2
> UDMA modes: udma0 udma1 *udma2
> AdvancedPM=no WriteCache=enabled
> Drive conforms to: device does not report version: 1 2 3 4 5
>
>From this info, you could run hdparm -d1 -X66 /dev/hdc for UDMA2.
However, if your drive is ATA100, maybe your block device section should look
something liek this:
#
# IDE, ATA and ATAPI Block devices
#
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDEFLOPPY=y
CONFIG_BLK_DEV_IDESCSI=m
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDEDMA_PCI_WIP=y
CONFIG_BLK_DEV_PDC202XX=y
CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_IDEDMA_AUTO=y
CONFIG_IDEDMA_IVB=y
CONFIG_BLK_DEV_IDE_MODES=y
Cook up a test kernel and test, run hdparm in test mode and check results, if
you can enable UDMA5. Good luck
--
rgds
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