Hi, On Wed, Oct 25, 2006 at 06:25:09AM +0200, Frederik Schueler wrote: > Hello, > > On Tue, Oct 24, 2006 at 04:30:50PM +0200, Panagiotis Issaris wrote: > > Oct 24 11:00:25 localhost kernel: CMD643: IDE controller at PCI slot > > 0000:00:08.0 > > Oct 24 11:00:25 localhost kernel: CMD643: chipset revision 0 > > Oct 24 11:00:25 localhost kernel: CMD643: not 100%% native mode: will probe > > irqs later > > Oct 24 11:00:25 localhost kernel: CMD643: simplex device: DMA forced > ^^^^^^^^^^^^^^ > > Oct 24 11:00:25 localhost kernel: ide0: BM-DMA at 0xfe00-0xfe07, BIOS > > settings: hda:pio, hdb:pio > > Oct 24 11:00:25 localhost kernel: ide1: BM-DMA at 0xfe08-0xfe0f, BIOS > > settings: hdc:pio, hdd:pio > > I doubt this box will do DMA, ever. AFAIK the chipset just does not > support it.
Apparently drivers/ide/setup-pci.c forces it to use DMA as there's a switch in which certain chipsets are forced to use DMA, while the default handling is to disable it. Thanks for your useful reply! With friendly regards, Takis -- vCard: http://www.issaris.be/pi.vcf Public key: http://www.issaris.be/pi.key diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index 0719b64..5a7b6f6 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -226,7 +226,6 @@ #endif /* CONFIG_BLK_DEV_IDEDMA_FORCED * case PCI_DEVICE_ID_AL_M5219: case PCI_DEVICE_ID_AL_M5229: case PCI_DEVICE_ID_AMD_VIPER_7409: - case PCI_DEVICE_ID_CMD_643: case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE: case PCI_DEVICE_ID_REVOLUTION: simplex_stat = hwif->INB(dma_base + 2); -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
