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Date: Tue, 22 Aug 1995 03:30:41 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199508211730.DAA02704@godzilla.zeta.org.au>
To: bde@zeta.org.au, gibbs@freefall.FreeBSD.org
Subject: Re: Clock interrupts during probes?
Cc: hackers@freefall.FreeBSD.org
Sender: hackers-owner@FreeBSD.org
Precedence: bulk

>I need access to timeout(), not tsleep() for the work in the upperlevel
>SCSI code, so I don't need a process context.  Most of the DELAY() calls
>in the aic7xxx driver stem from that fact that I can't use timeouts during
>boot and must poll in order to do a timeout.

You need tsleep() for the most time-consuming operation, which is
DELAY(1000000 * SCSI_DELAY) in scsiconf.c (default 15 seconds).  This
is very annoying when there are multiple scsi controllers or other
slow to start devices that could be started in parallel.

Bruce