Date: Wed, 23 Sep 1998 08:05:48 -0600 (MDT) From: "Kenneth D. Merry" <ken@plutotech.com> To: michaelc@hpbbse.bbn.hp.com (Michael Class) Cc: current@FreeBSD.ORG Subject: Re: CAM and quantum disc Message-ID: <199809231405.IAA21990@panzer.plutotech.com> In-Reply-To: <Pine.HPP.3.94.980922230258.9329A-100000@hpbbse.bbn.hp.com> from Michael Class at "Sep 22, 98 11:03:53 pm"
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Michael Class wrote... > Hello, > > during a make world, on a current-system of today I am getting > the following messages in the system log. > > (da1:ncr0:0:1:0): tagged openings now 31 > (da1:ncr0:0:1:0): tagged openings now 30 > (da1:ncr0:0:1:0): tagged openings now 29 > (da1:ncr0:0:1:0): tagged openings now 28 > (da1:ncr0:0:1:0): tagged openings now 27 > (da1:ncr0:0:1:0): tagged openings now 26 > (da1:ncr0:0:1:0): tagged openings now 25 > (da1:ncr0:0:1:0): tagged openings now 24 > (da1:ncr0:0:1:0): tagged openings now 23 > (da1:ncr0:0:1:0): tagged openings now 22 > (da1:ncr0:0:1:0): tagged openings now 21 > (da1:ncr0:0:1:0): tagged openings now 20 > (da1:ncr0:0:1:0): tagged openings now 19 > (da1:ncr0:0:1:0): tagged openings now 18 > (da1:ncr0:0:1:0): tagged openings now 17 > (da1:ncr0:0:1:0): tagged openings now 16 > > The disk is a "Quantum XP34300W L915". > > I remember that I read about these things before on this list. > Do we need a quirk entry like for the other quantum disks in cam_xpt.c > to restrict the number of tagged queue entries? You only need an entry for your Atlas I if it keeps returning queue full until there are no tags left. I'm not sure if the Atlas I's do. The Atlas II's will keep returning queue full until we have reduced the tag count to 0. That's why we put in a lower limit of 24. We don't allow the tag count to go below that; we just retry. Anyway, 16 isn't too bad. The Quantum Fireball ST only has about 8. Ken -- Kenneth Merry ken@plutotech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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