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    SubjectRe: Driver: PCIe: 'pci_map_sg' returning invalid bus address?
    Thanks guys. I had to get this working quickly so I just stuck with my 
    bounce buffer code. I'm not sure that it's technically a 'bounce
    buffer'; it just so happens that 'pci_alloc_consistent' returns an
    address in the low 32 bits. This may stop working if the user installs
    more than 4Gig of memory but I can live with that for now. Performance
    isn't great (~110Mbytes/s on 4-channel PCIe) but it's good enough.

    It's disappointing that LDD didn't have anything to say about this; it's
    pretty fundamental to DMA on x86_32 and PAE.

    Thanks -


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      Last update: 2010-08-14 17:29    [W:0.017 / U:31.012 seconds]
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