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Date:      Sun, 11 Oct 1998 11:07:24 -0600 (MDT)
From:      "Justin T. Gibbs" <gibbs@narnia.plutotech.com>
To:        Tony Maher <tonym@angis.usyd.edu.au>
Cc:        current@FreeBSD.ORG
Subject:   Re: scsi message
Message-ID:  <199810111707.LAA03389@narnia.plutotech.com>
In-Reply-To: <199810111100.VAA10456@morgan.angis.su.OZ.AU>

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In article <199810111100.VAA10456@morgan.angis.su.OZ.AU> you wrote:
> Hello,
> 
> after last cvsup and make world (around Oct 10 5:00 GMT) on shutdown
> it now reports:
> 
> syncing disk ... 3 3 done.
> (da1:ahc0:0:1:0): SYNCHRONISE CACHE. CDB: 35 0 0 0 0 0 0 0 0 0
> (da1:ahc0:0:1:0): ILLEGAL REQUEST asc:20,0
> (da1:ahc0:0:1:0): Invalid command operation code sks:c0,0

It doesn't support the sync cache command.  We'll be silencing that,
non-fatal, error shortly.

> So booting -v
> ---------------------------------------------------------------------------
> ahc0: target 0 synchronous at 10.0MHz, offset = 0xf
> ahc0: target 2 synchronous at 10.0MHz, offset = 0xf
> (probe6:ahc0:0:6:0): INQUIRY. CDB: 12 1 80 0 ff 0 
> (probe6:ahc0:0:6:0): ILLEGAL REQUEST asc:24,0
> (probe6:ahc0:0:6:0): Invalid field in CDB
> ahc0: target 6 synchronous at 5.0MHz, offset = 0xf
> ahc0: target 6 using asynchronous transfers
> ahc0: target 6 synchronous at 5.0MHz, offset = 0xf
> (probe1:ahc0:0:1:0): INQUIRY. CDB: 12 1 80 0 ff 0 
> (probe1:ahc0:0:1:0): ILLEGAL REQUEST asc:24,0
> (probe1:ahc0:0:1:0): Invalid field in CDB sks:c8,1
> ahc0: target 1 synchronous at 10.0MHz, offset = 0xf

These devices do not export a serial number.  No big deal.  We would
print them out in 'non-verbose mode' if they were something you should
worry about.

> This probably explains why the disk doesn't do tagged queuing.

It has nothing to do with tagged queuing.  We won't tag if:

1) tagged queing is not listed as supported in the device's inquiry response
2) disconnection is disabled
3) the DQUE bit is set in the control page
4) the device matches a quirk that tells us not to perform tagged queuing

--
Justin

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