Messages in this thread |  | | From | Eric Delaunay <> | Subject | can't select EIDE dma transfer mode | Date | Fri, 14 Jun 1996 17:52:59 +0200 (MET DST) |
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Hello all,
I'm trying to set DMA transfer mode to my EIDE drive without success.
At boot time, I get this message:
hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } hda: disabled DMA ide0: reset: success hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } hda: disabled DMA ide0: reset: success
I have no more success using hdparm (v2.9) to set it:
# hdparm -d1 -X34 /dev/hda
/dev/hda: setting using_dma to 1 (on) setting xfermode to 34 (multiword DMA mode2) hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } hda: disabled DMA ide0: reset: success using_dma = 0 (on)
What's wrong ? hdparm says my disk is DMA capable :-( PS: I get same behavior using my old kernel (1.3.74) or the new one (2.0.0). Also, why transfers from PCI to interface card occur in 16 bits mode (as hdparm -c /dev/hda says) and not in 32 bits mode by default ?
For infos:
linux-2.0.0 hdparm 2.9 P133 motherboard=ASUS P55TP4N
# dmesg ... ide: 430FX (Triton) on PCI bus 0 function 57 ide0: BM-DMA at 0xe800-0xe807 ide0 timing: (0x8000) sample_CLKs=5, recovery_CLKs=4 master: fastDMA=off PreFetch=off IORDY=off fastPIO=off slave : fastDMA=off PreFetch=off IORDY=off fastPIO=off ide1: BM-DMA at 0xe808-0xe80f ide1 timing: (0x8000) sample_CLKs=5, recovery_CLKs=4 master: fastDMA=off PreFetch=off IORDY=off fastPIO=off slave : fastDMA=off PreFetch=off IORDY=off fastPIO=off hda: Maxtor 71626 A, 1554MB w/64kB Cache, LBA, CHS=789/64/63, DMA hdc: CD-ROM CDU77E, ATAPI CDROM drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 ...
# hdparm -i /dev/hda
/dev/hda:
Model=Maxtor 71626 A, FwRev=QA3S1D20, SerialNo=K20KXB4S Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>5Mbs FmtGapReq } RawCHS=3158/16/63, TrkSize=0, SectSize=0, ECCbytes=34 BuffType=3(DualPortCache), BuffSize=64kB, MaxMultSect=16, MultSect=off DblWordIO=yes, maxPIO=2(fast), DMA=yes, maxDMA=1(medium) CurCHS=3158/16/63, CurSects=3183264, LBA=yes, LBAsects=3184170 tDMA={min:120,rec:120}, DMA modes: sword0 sword1 *sword2 mword0 mword1 *mword2 IORDY=on/off, tPIO={min:180,w/IORDY:120}, PIO modes: mode3 mode4 # hdparm -c /dev/hda
/dev/hda: I/O support = 0 (default 16-bit)
Thanks in advance
-- Eric Delaunay | "La guerre justifie l'existence des militaires. delaunay@lix.polytechnique.fr | En les supprimant." Henri Jeanson (1900-1970)
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