Hi list, I'm running OpenBSD on an HL-463 [1] which has the NS CS5535 IDE chipset. The kernel says that this chipset doesn't support DMA, although a quick google search suggests that the same controller with a slightly different vendor specification supports DMA. It also looks like DMA support for this particular chipset has been implemented in the Linux and NetBSD kernels. So I was wondering whether there was any specific reason why it isn't implemented in OpenBSD yet. Does anyone know?
The complete dmesg line is pciide0 at pci0 dev 15 function 2 "NS CS5535 IDE" rev 0x00: DMA (unsupported), channel 0 wired to compatibility, channel 1 wired to compatibility Thanks, Lars [1] http://herologic.com/oscommerce/catalog/product_info.php?cPath=1_34&products_id=58
