Re: Linux Virtual SCSI HBAs and Virtual disks

[Douglas Gilbert <dougg@torque.net>]

Aboo Valappil wrote:
> Hi All,
> 
> I have tried this before but I guess I was unsuccessful in presenting it
> properly in the mailing list. I think it is really useful especially for
> prototyping and also for people who wants to develop their own scsi
> targets and transports.
> There are few people told me about the SCSI target and initiator
> implementation of XEN. But I do not think it is this simple and might
> take a while to port it to normal linux kernel.  At the moment, there is
> nothing like this available in a simplest form.
> 
> Please visit this site http://vscsihba.aboo.org. I put a complete
> description of the project and the source code. I appreciate if you
> could go through it and put your thoughts....  This is my final attempt
> in this mailing list before I throw away whole of my work.

Throwing it away sounds a bit drastic. It tooks me a
while finding the tarball on your site. Perhaps you
could put it in a table under a "Downloads" section.
The table would be for different versions as it looks
like you may need a new one for bleeding edge kernels.

I didn't get far trying to build the kernel module
against lk 2.6.20-rc5:

# make
make -C /lib/modules/2.6.20-rc5/build M=/home/upgrades/apps/vscsihba1/vscsihba1/kernel modules
make[1]: Entering directory `/usr/src/linux-2.6.19'
  CC [M]  /home/upgrades/apps/vscsihba1/vscsihba1/kernel/hba.o
/home/upgrades/apps/vscsihba1/vscsihba1/kernel/hba.c:26: warning: ‘kmem_cache_t’ is deprecated
  CC [M]  /home/upgrades/apps/vscsihba1/vscsihba1/kernel/device.o
/home/upgrades/apps/vscsihba1/vscsihba1/kernel/device.c:263:51: error: macro "INIT_WORK" passed 3 arguments, but takes just 2
/home/upgrades/apps/vscsihba1/vscsihba1/kernel/device.c: In function ‘scsitap_ctl_ioctl’:
/home/upgrades/apps/vscsihba1/vscsihba1/kernel/device.c:263: error: ‘INIT_WORK’ undeclared (first use in this function)
/home/upgrades/apps/vscsihba1/vscsihba1/kernel/device.c:263: error: (Each undeclared identifier is reported only once
/home/upgrades/apps/vscsihba1/vscsihba1/kernel/device.c:263: error: for each function it appears in.)
make[2]: *** [/home/upgrades/apps/vscsihba1/vscsihba1/kernel/device.o] Error 1
make[1]: *** [_module_/home/upgrades/apps/vscsihba1/vscsihba1/kernel] Error 2
make[1]: Leaving directory `/usr/src/linux-2.6.19'
make: *** [modules] Error 2

Doug Gilbert


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