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It's the chip that communicates with your IDE drives. You can check which one it is with /sbin/lspci....
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  1. #11
    Linux Guru
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    It's the chip that communicates with your IDE drives. You can check which one it is with /sbin/lspci.

  2. #12
    Linux User
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    Jun 2003
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    Huntington Beach, CA
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    I don't have such a file, is it something that has to be compiled into the kernel?

    Edit: Well I got DMA working now, I added options ide-cd dma=1 to my modules.conf and added support for VIA chipsets (my motherboard is an MSI 6153 via pro) and generic PCI IDE chipset support. I'm not sure what if not all of that was responsible but it works now, and I'm getting:

    Code:
    /dev/hdb:
     Timing buffer-cache reads:   128 MB in  2.22 seconds = 70.66 MB/sec
     Timing buffered disk reads:  64 MB in  3.96 seconds = 18.16 MB/sec
    What a difference!

  3. #13
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    At least it seems that the PIIXn drivers weren't as good as my VIA driver. They had enabled DMA and lots of stuff, but they hadn't activated 32-bit async IO and unmasked interrupts. Just wanted everyone to know in case you use PIIXn.

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