Messages in this thread | | | From | Gustavo Guillermo Pérez <> | Subject | Re: Can't enable DMA over ATA on Intel Chipset 2.6.16 | Date | Mon, 28 Aug 2006 20:42:26 -0500 |
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El Lunes, 28 de Agosto de 2006 14:57, escribió: > Make sure the piix ide drive is loaded BEFORE the ide-generic driver, > otherwise the wrong driver will run the PATA port, and the generic > driver doesn't do DMA. Your dmesg did not look like it was using the > piix driver for PATA, it looked like ide-generic. Some initrd systems > seem to load ide-generic for cdrom, if the HD is on sata or scsi, or > something later in the boot process does it. > > You should see something like (using piix driver, ata_piix would look > somewhat different I think): Builded into kernel we can't specify the load order, then you suggest to made an initrd with insmod loading firs scsi subsystem and piix before ide-generic... Ok I can do that, but imagine, making a kernel for a distribution, ;)
No problem, let me try.
> ICH5: IDE controller at PCI slot 0000:00:1f.1 > PCI: Enabling device 0000:00:1f.1 (0005 -> 0007) > ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 193 > ICH5: chipset revision 2 > ICH5: not 100% native mode: will probe irqs later > ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:pio > ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:pio, hdd:pio > Probing IDE interface ide0... > hda: PLEXTOR DVDR PX-708A, ATAPI CD/DVD-ROM drive > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 > Probing IDE interface ide1... > hda: ATAPI 40X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache, UDMA(33) > Uniform CD-ROM driver Revision: 3.20 > Probing IDE interface ide1... > > Yours had: > > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > Probing IDE interface ide0... > Probing IDE interface ide1... > hdc: SAMSUNG SP0802N, ATA DISK drive > hdd: TSSTcorpCD/DVDW TS-H552L, ATAPI CD/DVD-ROM drive > ide1 at 0x170-0x177,0x376 on irq 15 > hdc: max request size: 512KiB > hdc: 156368016 sectors (80060 MB) w/2048KiB Cache, CHS=16383/255/63 > hdc: cache flushes supported > /dev/ide/host1/bus0/target0/lun0: p1 p2 p3 p4 < p5 p6 p7 > > hdd: ATAPI 40X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache > Uniform CD-ROM driver Revision: 3.20 > ide-floppy driver 0.99.newide > libata version 1.20 loaded. > ata_piix 0000:00:1f.2: version 1.05 > ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 16 > ata: 0x170 IDE port busy > PCI: Setting latency timer of device 0000:00:1f.2 to 64 > ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0xFFA0 irq 14 > ATA: abnormal status 0x7F on port 0x1F7 > ata1: disabling port > scsi0 : ata_piix > > That looks like ata_piix couldn't get at the ide port because it was > already taken by the generic driver already. > > -- > Len Sorensen > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
-- Gustavo Guillermo Pérez Compunauta uLinux www.compunauta.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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