On Wed, Nov 01, 2006 at 05:33:58PM -0800, Randy Dunlap wrote: > unchecked_isa_dma - 1=>only use bottom 16 MB of ram (ISA DMA addressing > restriction), 0=>can use full 32 bit (or better) DMA > address space > > > It is hard for me to see why BusLogic controller would only do DMA > > in low 16MB. Is there a fix for this? > > Does anyone know that controller hardware and its limitations? I don't, but: if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK )) continue; So somebody thinks the device can do 32-bit addressing. I would expect that setting unchecked_isa_dma is a historical mistake. However, I don't have any cards of this type to test. - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
