Hi, If I look at how some of my other SCSI cards are handling this on Alpha I see that both sym875 and aic7xxx selects 32-bit masks. aic7xxx uses dma_get_required_mask() and sym has it configurable in kernel config but seems to default to 32-bit. I guess it's possible to use dma_get_required_mask() for chip revisions < ISP1040C . Seeing how other scsi drivers have similar solutions? I know, again this is missing the point. The ISP1080 does work with a full 64-bit mask.
