Re: 2.4.21-rc1-ac2 Promise IDE DMA won't work

[Tabris]

On Tuesday 29 April 2003 04:15 pm, Andre Hedrick wrote:
> The Promise chipset use a second DMA engine at offset 0x24 respective
> of the channel.  Mixing an ATA and ATAPI on that channel is almost
> impossible to make the corner cases work.  Next, if there us a 48-bit
> ATA plus ATAPI on the channel popping between the two enignes does
> not look sane at all because one has to swithc the location of the
> hwif->sgtable.

Ok... moved the HDDs from the VIA secondary to the PDC primary (tried 
moving both, but it seems that ide=reverse doesn't work), and the 
CD-R/W to the VIA secondary.

good news, regular reads seem to use the DMA engine. bad news, CDDA 
ripping (using cdparanoia) does not.

is this a known issue? (i thought that CDDA ripping had been fixed)

Haven't tested burning yet.

Hope this all helps, and doesn't annoy too much ;)

--
tabris
-
The day advanced as if to light some work of mine; it was morning, 
and lo! now it is evening, and nothing memorable is accomplished.  
		-- H.D. Thoreau