Ik zat in de kernal messages te surfen en kwam dit stuk tegen over mij pci ide kaart:
Sep 16 12:16:19 localhost kernel: [17179572.392000] ide2: BM-DMA at 0xb000-0xb007, BIOS settings: hde:pio, hdf:pio
Sep 16 12:16:19 localhost kernel: [17179572.392000] ide3: BM-DMA at 0xb008-0xb00f, BIOS settings: hdg:pio, hdh:pio
Sep 16 12:16:19 localhost kernel: [17179572.692000] hde: Maxtor 5T030H3, ATA DISK drive
Sep 16 12:16:19 localhost kernel: [17179573.388000] ide2 at 0xa000-0xa007,0xa402 on irq 169
Sep 16 12:16:19 localhost kernel: [17179573.696000] hdg: Maxtor 53073H4, ATA DISK drive
Sep 16 12:16:19 localhost kernel: [17179574.404000] ide3 at 0xa800-0xa807,0xac02 on irq 169
Sep 16 12:16:19 localhost kernel: [17179574.408000] hde: max request size: 128KiB
Sep 16 12:16:19 localhost kernel: [17179574.420000] hde: 60030432 sectors (30735 MB) w/2048KiB Cache, CHS=59554/16/63, UDMA(100)
Sep 16 12:16:19 localhost kernel: [17179574.420000] hde: cache flushes not supported
Sep 16 12:16:19 localhost kernel: [17179574.420000] hde: hde1 hde2 hde3 < hde5 >
Sep 16 12:16:19 localhost kernel: [17179574.440000] hdg: max request size: 128KiB
Sep 16 12:16:19 localhost kernel: [17179574.440000] hdg: 57777640 sectors (29582 MB) w/2048KiB Cache, CHS=57319/16/63, UDMA(100)
Sep 16 12:16:19 localhost kernel: [17179574.440000] hdg: cache flushes not supported
Bij de eerste 2 regels staat welke dma modus van de pci kaart, nu is mijn vraag, draait die pci nu dan op pio modus?
Zo ja, hoe forceer ik die naar dma, via hdparm lukt het mij niet.
Deze regel staat in hpdarm:
/dev/hde {
dma = on
}
/dev/hdg {
dma = on
}