From owner-freebsd-scsi  Wed Jul  4 22:15:15 2001
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Date: Wed, 4 Jul 2001 22:15:04 -0700 (PDT)
From: Matthew Jacob <mjacob@feral.com>
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To: Xubin He <xbhe@yahoo.com>
Cc: scsi@freebsd.org
Subject: Re: target mode usage quick primer
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Go chdir to /dev and do the appropriate MAKEDEV magic?


On Wed, 4 Jul 2001, Xubin He wrote:

> Dear Matthew,
> Thank you very much for your detail information.It is
> really helpful. Now when I boot the target side
> machine,I can see the message
> "(targbh0:ahc0:0:-1:-1):Lun now enabled for target
> mode", which means that the system has already been
> set to target mode.But when I tried to run
> ./scsi_target -p 0 -t 0 -l 3 to test the target mode,
> I got an error message "/dev/targ.ctl:no such file or
> directory."Do you have any idea about this error?Sorry
> for bothering you again. Have a great holiday.
> ---Ben
> --- Matthew Jacob <mjacob@feral.com> wrote:
> > 
> > On Wed, 4 Jul 2001, Ben wrote:
> > 
> > > This message was sent from Geocrawler.com by "Ben"
> > <xbhe@yahoo.com>
> > > 
> > > 
> > > Dear Matthew,
> > >      I have connected two PCs running FreeBSD 4.3 
> > > each with an adaptec 39160 adapter.These two 
> > > apaters are connected through a SCSI cable. One 
> > > of the SCSI ID is set to 6,the other is set to 7. 
> > > I am trying to make one machine running under 
> > > target mode. What I did is to change 
> > > AHC_TMODE_ENABLE to 1 and rebuild the 
> > > kernel.After I reboot these two systems,nothing 
> > > is new. Could you point out how I shold test the 
> > > target mode?Thank you very much.
> > > Ben
> > 
> > You need the drivers
> > 
> > device scsi_target
> > device scsi_targ_bh
> > 
> > in your kernel as well as enabling target mode
> > support in either the
> > Adaptec driver or the the QLogic driver. Note that
> > while the QLogic
> > driver supports simultaneous initiator/target mode
> > operation, the last
> > I checked, the Adaptec doesn't, so for your h/w, you
> > have to have the
> > initiator side *not* have AHC_TMODE_ENABLE on. You
> > might probably want
> > to put
> > 
> > device pt
> > 
> > in the initiator side.
> > 
> > Once you boot the target mode side, you'll eee
> > wildcard enabling
> > via the targbh driver so that commands to
> > non-existent luns have
> > somebody to actually respond.
> > 
> > Then go off and compile
> > /usr/share/examples/scsi_target/scsi_target.c
> > and enable a lun for real.
> > 
> > Then boot the initiator side or camcontrol rescan
> > the initiator side.
> > 
> > -matt
> > 
> > 
> 
> 
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