Hello!
I do own an SCSI host controller from Dawicontrol
( http://www.dawicontrol.com/ ). Model name is "DC-2975 U".
This host controller has a problem wich is covered within
the documentation inside kernel 2.6.1 in the file
"Documentation/scsi/sym53c8xx_2.txt":
> 10.2.9 Max wide
> wide:1 wide scsi enabled
> wide:0 wide scsi disabled
> Some scsi boards use a 875 (ultra wide) and only supply narrow connectors.
> If you have connected a wide device with a 50 pins to 68 pins cable
> converter, any accepted wide negotiation will break further data transfers.
> In such a case, using "wide:0" in the bootup command will be helpfull.
The controller works fine with linux 2.4.x when "wide:0" is set. But
it looks like this option is not supported with linux 2.6.x. I do think so
because of two reasons:
1) Setting it seems to have no effect.
2) From looking at the source:
File drivers/scsi/sym53c8xx_2/sym_glue.c defines this:
>static char setup_token[] __initdata =
> "tags:" "burst:"
> "led:" "diff:"
> "irqm:" "buschk:"
> "hostid:" "revprob:"
> "verb:" "debug:"
> "settle:" "nvram:"
> "excl:" "safe:"
> ;
"wide:0" is missing. I am not good with C and I might be wrong here.
But reason no. 1 remains true still.
Can anyone confirm if my controller is not supported by linux2.6.x?
If yes, does anyone know if there is a patch or some other help
available? Is anyone working on this?
Regards
Florian
--
Florian Hinzmann private: [email protected]
Debian: [email protected]
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