Date: Mon, 29 Sep 1997 21:40:57 -0700 From: Julian Elischer <julian@whistle.com> To: current@freebsd.org Subject: buf struct & scsi disk IO availability. Message-ID: <343082D9.41C67EA6@whistle.com>
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I have hit a point on which I am not on firm ground.. I would like to do some IO from a disk at PROBE time. In my original SCSI code, this would have been ok, as long as I didn't need interrupts. I thought I should check the following points with thre readers of -current before I go further however.. 1/ is the buf system set up fully by this time, i.e. can I user getebuf()? david? bruce? john? 2/ Jason, if I use the disk as a direct result of the scsi_attach() routine, does that catch you off guard in the aic driver? In other words, when you call scsi_attach() and friends, are you set up enough to handle that routine looping back and in turn asking you to perform IO (e.g. to read the fdisk table). If this is not the case, I have a work-around which would be to queue further configuration to occur at some later time (but before mounting root), but it wouldn't be so clean. julian
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