Re: [9fans] new cdfs for DVDs and BDs

["Mathieu Lonjaret" <lejatorn@gmail.com>]

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Here it is.

On Sun, Apr 13, 2008 at 3:53 PM, erik quanstrom <quanstro@quanstro.net> wrote:
> that error occurs when you try to do dma on a controller that says it
>  doesn't do dma.  this bit is found in pci space & loaded into
>  pcidev->ccrp — pci programming interface class code.  for ide-styled
>  devices, this register is defined as
>         busmaster | 1<<channel*2
>  or
>         0x80 | 4 | 1 == 0x85
>
>  the most likely cause of the problem is that this register is
>  misprogrammed, but the dma area is actually there.  so as always, the
>  output of pci would be very helpful.
>
>  the linux "ide" code that linux ignores this bit for intel
>  controllers.  i think the linux "ata" code ignores it too, but i could
>  have missed something in 60k lines.
>
>  - erik
>
>
>
>  > Ok, I've just pulled (I now have a /bin/cdfs from 26th of March) however
>  > I still get the same errors.
>  >
>  > I have tried with a CD-RW and a DVD+RW.
>  >
>  > cat /dev/sdC0/ctl gives me this:
>  > inquiry HL-DT-STDVDRAM GSA-U10N 1.05
>  > config 85C0 capabilities 0F00 dma 00550004 dmactl 00000000
>  > part data 0 2141
>  >
>  > ah and 'dmaon' had this displayed:
>  > "disabling dma: not on a busmastering controller"
>  > (I guess dmactl at 00000000 is in accordance with that?)
>  >
>  > Thanks,
>  > Mathieu.
>
>
>



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[-- Attachment #2: pci_out.txt --]
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0.0.0:	brg  06.00.00 8086/2a00   0
	Intel Corporation
0.2.0:	vid  03.00.00 8086/2a02  10 0:f8100004 1048576 1:00000000 16 2:e000000c 268435456 3:00000000 16 4:00001801 16
	Intel Corporation
0.2.1:	vid  03.80.00 8086/2a03   0 0:f8200004 1048576 1:00000000 16
	Intel Corporation
0.25.0:	net  02.00.00 8086/1049  11 0:fe000000 131072 1:fe025000 4096 2:00001841 32
	Intel Corporation
0.26.0:	usb 0c.03.00 8086/2834  11 4:00001861 32
	Intel Corporation
0.26.1:	usb 0c.03.00 8086/2835  11 4:00001881 32
	Intel Corporation
0.26.7:	usb 0c.03.20 8086/283a  11 0:fe226400 1024
	Intel Corporation
0.27.0:	---  04.03.00 8086/284b  11 0:fe020004 16384 1:00000000 16
	Intel Corporation
0.28.0:	brg  06.04.00 8086/283f  11
	Intel Corporation
0.28.1:	brg  06.04.00 8086/2841  11
	Intel Corporation
0.28.2:	brg  06.04.00 8086/2843  11
	Intel Corporation
0.28.3:	brg  06.04.00 8086/2845  11
	Intel Corporation
0.28.4:	brg  06.04.00 8086/2847  11
	Intel Corporation
0.29.0:	usb 0c.03.00 8086/2830  10 4:000018a1 32
	Intel Corporation
0.29.1:	usb 0c.03.00 8086/2831  11 4:000018c1 32
	Intel Corporation
0.29.2:	usb 0c.03.00 8086/2832  11 4:000018e1 32
	Intel Corporation
0.29.7:	usb 0c.03.20 8086/2836  11 0:fe226800 1024
	Intel Corporation
0.30.0:	brg  06.04.01 8086/2448 255
	Intel Corporation 82801BAM/CAM/DBM Hub Interface to PCI Bridge
0.31.0:	brg  06.01.00 8086/2811   0
	Intel Corporation
0.31.2:	disk 01.01.80 8086/2828 255 0:00000001 16 1:00000001 16 2:00000001 16 3:00000001 16 4:00001c31 16 5:00001c21 16
	Intel Corporation
0.31.3:	smb 0c.05.00 8086/283e  11 0:fe226c00 256 4:00001c41 32
	Intel Corporation
21.0.0:	brg  06.07.00 1180/0476  10
	Ricoh Company, Ltd.
21.0.1:	---  0c.00.10 1180/0832  11 0:f8301000 2048
	Ricoh Company, Ltd.
21.0.2:	---  08.05.00 1180/0822  11 0:f8301800 256
	Ricoh Company, Ltd.
21.0.3:	---  08.80.00 1180/0843  11 0:f8301c00 256
	Ricoh Company, Ltd. unknown Ricoh MMC Host Controller
21.0.4:	---  08.80.00 1180/0592  11 0:f8302000 256
	Ricoh Company, Ltd. unknown Ricoh Memory Stick Host Controller
21.0.5:	---  08.80.00 1180/0852  11 0:f8302400 256
	Ricoh Company, Ltd. unknown Ricoh xD-Picture Card Host Controller
3.0.0:	net  02.80.00 8086/4227  11 0:df3ff000 4096
	Intel Corporation