Messages in this thread | | | Subject | Re: IT8212 in 2.6.9-ac6 no raid 0 or raid 1 | From | Alan Cox <> | Date | Wed, 10 Nov 2004 22:07:51 +0000 |
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On Mer, 2004-11-10 at 21:22, Robert Toole wrote: > /dev/hde: > multcount = 0 (off) > IO_support = 0 (default 16-bit) > unmaskirq = 0 (off) > using_dma = 0 (off) > keepsettings = 0 (off) > readonly = 0 (off) > readahead = 256 (on) > geometry = 4998/255/63, sectors = 41110141952, start = 0 > > hdparm -d 1 -A 1 -m 16 -u 1 -a 64 /dev/hde > > - it does not like the multicount setting, saying HDIO_SET_MULTCOUNT
Thats correct - in raid mode the controller emulates an IDE controller but is doing all the work (its actually hardware raid) and it doesn't support multisector PIO stuff (not that this matters for DMA). The -u1 and -d1 are the two that matter
> Is there any more info you could use? My lspci, .config is in my first > post. This is a pure test box, so I can do pretty much anything you want > to it :)
No this makes sense - I need to adjust the fixup handling slightly. I fix up the IT8212 misreporting of DMA a little too late for the generic code to decide to turn DMA on.
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