Re: UDMA not supported on my board

Andre M. Hedrick (hedrick@Astro.Dyer.Vanderbilt.Edu)
Sat, 13 Mar 1999 00:36:12 -0600 (CST)


On Sat, 13 Mar 1999, CaT wrote:

> > hdparm -tT /dev/hda
> >
> > /dev/hda:
> > Timing buffer-cache reads: 128 MB in 3.92 seconds =32.65 MB/sec
> > Timing buffered disk reads: 64 MB in 5.20 seconds =12.31 MB/sec
> >
> > Here is your proof that I got it right.
>
> You lucky lucky bastard 8(

There is no luck involved here, just smashed keyboards.
Do you want to give me the skinney on your problems and name the
mainboard.

> 1007.root@kinder:/root>> hdparm -v /dev/hda
>
> /dev/hda:
> multcount = 32 (on)
> I/O support = 1 (32-bit)
> unmaskirq = 1 (on)
> using_dma = 1 (on)
> keepsettings = 0 (off)
> nowerr = 0 (off)
> readonly = 0 (off)
> readahead = 8 (on)
> geometry = 790/255/63, sectors = 12706470, start = 0

hdparm -v /dev/hda

/dev/hda:
multcount = 0 (off)
I/O support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 13176/16/63, sectors = 13281408, start = 0

Well if that one got you this will top you out.

hdparm -i /dev/hdc

/dev/hdc:

Model=IDE/ATAPI CD-ROM 36X, FwRev=T6C4, SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=0(?), BuffSize=0kB, MaxMultSect=0
DblWordIO=no, maxPIO=4(ata), DMA=yes, maxDMA=2(fast)
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
tDMA={min:120,rec:150}, DMA modes: *mword0 mword1 mword2
IORDY=yes, tPIO={min:227,w/IORDY:120}, PIO modes: mode3 mode4
UDMA modes: *mode0 mode1 mode2

hdparm -tT /dev/hdc

/dev/hdc:
Timing buffer-cache reads: 128 MB in 3.91 seconds =32.74 MB/sec
Timing buffered disk reads: 64 MB in 24.56 seconds = 2.61 MB/sec

hdparm -v /dev/hdc

/dev/hdc:
HDIO_GET_MULTCOUNT failed: Invalid argument
I/O support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
HDIO_GET_NOWERR failed: Invalid argument
readonly = 1 (on)
readahead = 8 (on)
HDIO_GETGEO failed: Invalid argument

Andre Hedrick
The Linux IDE guy -- http://www.dyer.vanderbilt.edu/server/udma/

APC UPS Daemon Support Center.
http://www.brisse.dk/site/apcupsd/
Going FSF/GNU or GPL2 source soon.

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