Re: UDMA not supported on my board

CaT (cat@zip.com.au)
Sun, 14 Mar 1999 10:50:49 +1100 (EST)

Mark Lord wrote the following:
>
> CaT wrote:
> > 37 e3 30 c0 bb 00 00 00 09 00 02 20 00 00 00 00
>
> 37-e3 means PIO4/dma2 is setup for /dev/hda.
> 30-c0 means slow timings for /dev/hdc.
> bb means PIO4/dma2 is setup for /dev/hdb and /dev/hdd.
>
> The 09 means /dev/hda and /dev/hdd also have UDMA enabled.
> The 02-20 means they both have UDMA mode2 selected,
> which is the fastest mode.

Unless I fuzzed up, hdparm reprts different:

1001.root@kinder:/root>> hdparm -i /dev/hda /dev/hdd

/dev/hda:

Model=ST36531A, FwRev=3.05, SerialNo=VS332292
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=13446/15/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=0(?), BuffSize=128kB, MaxMultSect=32, MultSect=off
DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=2(fast)
LBA CHS=790/255/63 Native, LBAsects=12706470
tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
IORDY=on/off, tPIO={min:240,w/IORDY:120}, PIO modes: mode3 mode4
UDMA modes: mode0 mode1 *mode2
Drive Supports : ATA-1 ATA-2 ATA-3 ATA-4

/dev/hdd:

Model=CD-ROM 32X/AKU, FwRev=U12I, SerialNo=
Config={ SpinMotCtl 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=on/off, tPIO={min:227,w/IORDY:120}, PIO modes: mode3 mode4
UDMA modes: *mode0 mode1 mode2

The * means it's using THAT one, no?

-- 
CaT (cat@zip.net.au)                       URL: http://www.zip.com.au/dev/null


   An electricity provider of New Hampshire, US has advised it's customers
   that in the event of a power failure they can log on to its website for
   more information...   - Paraphrased from the New Scientist, Feb 6, 1999




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