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SubjectRe: Linux as a SCSI _Target_ device?
On Fri, Nov 13, 1998 at 12:30:23AM +0100, Gerard Roudier wrote:
> Agreed, and you have the advantage not to have to cope with complex
> context saving since the target interrupts transfers at its convenience.
>
> Indeed, there is no problem for implementing SCSI target mode with
> NCR/SYMBIOS/LSI 53c[7-8]xx chips, but Linux does not provide kernel
> interface for SCSI target mode.

I may ultimately eat my words, but I'd like to try to do it.

I want to try to write a module that can export any Linux block device
as a SCSI target emulating a direct-access device. I have a spare Alpha
machine with an onboard 53c810 for the development.

I called Symbios/LSI this morning and they no longer have programming
documentation for the 53c8xx. Apparently the merger has been a mess.
They sent me a 53c8xx data book. Is the SCRIPTS programming info
in there?

One of the list subscribers pointed me to an area on the Symbios FTP site
(thanks!), and I've downloaded a lot of DOS code for implementing a RAM
disk on the 53c8xx. I'm sure that will prove very useful. Now I need
to acquaint myself with the Linux kernel guts. I used to love writing
device drivers, but computers and OS's used to be a lot simpler. :)

Gerard, I'm hoping you can hold my hand on this one. :-)

Alan Cox has pointed me to some resources to get familiar with Linux
guts.

I'd like to thank everyone who has helped me so far. I've had some
enlightening responses to this thread.

Regards,

Jeff

--
It's time to close Windows and open source.

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