64bit DMA testing

Hi All,

Is there any utility that produces SCSI commands with 64bit DMA buffers (scatter-gather or single buffer).

The machine I'm currently using is dual XEON on 6GByte DRAM with PAE enabled and RedHat 9 kernel compiled as SMP bigmem kernel (2.4.20) I have also Suse linux 64bit on dual Opteron AMD ; does this make life easier for generating 64bit DMA buffers ?

Thank you,
Rabeeh