Hello, [please CC me upon replying - thank you] I have a Highpoint 370 PCI IDE controller, and both my 2.6.18.2 and Knoppix 5's 2.6.17 display the following messages:
HPT370: IDE controller at PCI slot 0000:01:09.0 HPT370: chipset revision 3 HPT370: 100% native mode on irq 11 HPT37X: using 33MHz PCI clock ide2: BM-DMA at 0xa000-0xa007, BIOS settings: hde:DMA, hdf:DMA HPT37X: using 33MHz PCI clock ide3: BM-DMA at 0xa008-0xa00f, BIOS settings: hdg:pio, hdh:pio Probing IDE interface ide2... hde: ST340823A, ATA DISK drive hdf: ExcelStor Technology J840, ATA DISK drive ide2 at 0x9000-0x9007,0x9402 on irq 11 Probing IDE interface ide3... hdg: LITE-ON LTR-52246S, ATAPI CD/DVD-ROM drive ide3 at 0x9800-0x9807,0x9c02 on irq 11 hde: max request size: 128KiB hde: 78165360 sectors (40020 MB) w/1024KiB Cache, CHS=65535/16/63, UDMA(100) hde: cache flushes not supported hde:<4>hde: dma_timer_expiry: dma status == 0x61 hde: DMA timeout error hde: 0 bytes in FIFO hde: timeout waiting for DMA hde: dma timeout error: status=0x80 { Busy } ide: failed opcode was: unknown hde: DMA disabled hdf: DMA disabled ide2: reset: success hde1 hde2 <<4>hde: dma_timer_expiry: dma status == 0x21 hde: DMA timeout error hde: 0 bytes in FIFO hde: timeout waiting for DMA hde: dma timeout error: status=0x80 { Busy } ide: failed opcode was: unknown hde: DMA disabled ide2: reset: success hde5<4>hde: dma_timer_expiry: dma status == 0x21 hde: DMA timeout error hde: 0 bytes in FIFO hde: timeout waiting for DMA hde: dma timeout error: status=0x80 { Busy } ide: failed opcode was: unknown hde: DMA disabled ide2: reset: success hde6 > hdf: max request size: 512KiB hdf: 80418240 sectors (41174 MB) w/1719KiB Cache, CHS=16383/255/63 hdf: cache flushes supported hdf: unknown partition table hde: dma_timer_expiry: dma status == 0x21 hde: DMA timeout error hde: 0 bytes in FIFO hde: timeout waiting for DMA hde: dma timeout error: status=0x80 { Busy } ide: failed opcode was: unknown hde: DMA disabled ide2: reset: success
(hdf is naked, there's no error in partition detection) The same messages appear when manually trying to enable DMA with hdparm. The hdparm reading of hde is:
/dev/hde: multcount = 16 (on) IO_support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 0 (off) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) geometry = 65535/16/63, sectors = 78165360, start = 0
hda, which is on the mainboard controller and works as hde used to as well, reads:
/dev/hda: multcount = 16 (on) IO_support = 1 (32-bit) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) geometry = 65535/16/63, sectors = 117231408, start = 0
In the controller's setup utility, I can choose access modes. If i switch it from UDMA5 to PIO0, the only difference during boot is:
ide2: BM-DMA at 0xa000-0xa007, BIOS settings: hde:pio, hdf:pio
instead of
ide2: BM-DMA at 0xa000-0xa007, BIOS settings: hde:DMA, hdf:DMA
Please help me getting DMA to work with this controller. Thanks in advance, ~Mik -- So, how can you tell me you're lonely? And say that you don't have no life? Let me take you by the hand and show you all the geeks of London I'll show you something to make you change your mind! - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html