Via CX700 IDE

[Matteo Beccati <php%beccati.com@localhost>]

Hi,

I'm running NetBSD 4.0 on my Epia box which features a Jetway 
motherboard with a Via CX-700 chipset. I was having troubles with the 
IDE chipset not being recognised, thus running with DMA disabled. After 
digging a bit I've discovered that -current has support for the newer 
chipset, but it that the ID in pcidevs is not what my dmesg was 
reporting (0x5324 vs 0x0581 in -current).

So, after backporting the CX700 related changesets from -current, fixing 
pcidevs and rebuilding its headers, I was able to compile a perfectly 
fine kernel.

In summary, using:

product VIATECH CX700_IDE      0x5324  CX700 IDE Controller

did the trick. I didn't even bother to try, but I'm pretty sure that a 
stock -current kernel wouldn't have worked on my Jetway J7F5M1G2E-VDE.

Hope this helps. It surely did help me: my 40Gb raidframe mirror is now 
taking 15mins to rebuild, compared to the almost 9h w/ 100% sys cpu I 
had before ;)


Cheers

--
Matteo Beccati

OpenX - http://www.openx.org