Re: (U)DMA issues - another for the blacklist? (was Re: Maybe Disk Problem.)

Pavel Ravits (br2@netvision.net.il)
Sun, 07 Mar 1999 21:49:18 +0200


Hi,

(2nd message)

Andre M. Hedrick wrote:

> Recompile with the CONFIG_AUTODMA option disabled.
> Next, turn on DMA/UDMA support in the BIOS.
> Then boot new kernel.

Yes, as I said the option now disabled.
About the BIOS support for the DMA/UDMA - this is that I found:
*there is a place to switch UDMA for the master/slave, but the switch
is whether UDMA will be auto or disabled so of course it was and is auto.
*In the autodetecting the possible modes to set are LBA/NORMAL/LARGE.
it was LBA, I tryed NORMAL -> destroyed the MBR and something more and
then returned it to previous LBA.
Anyway on boot of the computer(not linux) there is this table and it shows me
that the disk mode is LBA,UDMA2.

> Get hdparm-3.5 plus hdparm-3.5f.patch from URL at bottom.
> patch -p0 < hdparm-3.5f.patch inside hdparm-3.5/ directory.

the new hdparm is now attached.

> The Quantum SE, ST, EL, and EX series are all fully compliant with Linux
> and UDMA, provide the mainboard or host adapter is okay.

what is host adapter? - isn't it on the motherboard?

> > > Model=QUANTUM FIREBALL EL5.1A, FwRev=A08.1100, SerialNo=34581671

> I need more info, but do it off the list for now.

info on the disk -> then hdparm has it,
otherwise info on what ?, or it doesn't relates to me.

Thanks,
Pavel.

/dev/hda:

Model=QUANTUM FIREBALL EL5.1A, FwRev=A08.1100, SerialNo=345816717385
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=10602/15/63, TrkSize=32256, SectSize=21298, ECCbytes=4
BuffType=3(DualPortCache), BuffSize=418kB, MaxMultSect=16, MultSect=off
DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=2(fast)
LBA CHS=623/255/63 Native, LBAsects=10018890
tDMA={min:120,rec:120}, DMA modes: sword0 sword1 sword2 mword0 mword1 mword2
IORDY=on/off, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4
UDMA modes: mode0 mode1 *mode2
Drive Supports : ATA/ATAPI-4 T13 1153D revision 15 : ATA-1 ATA-2 ATA-3 ATA-4

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