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- Newsgroups: comp.os.linux
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!ra!tantalus.nrl.navy.mil!eric
- From: eric@tantalus.nrl.navy.mil (Eric Youngdale)
- Subject: New scsi code.
- Message-ID: <By3383.Fs3@ra.nrl.navy.mil>
- Sender: usenet@ra.nrl.navy.mil
- Organization: Naval Research Laboratory
- Distribution: comp
- Date: Sat, 21 Nov 1992 20:50:26 GMT
- Lines: 28
-
-
- I have uploaded some patches for fscsi-a06 to tsx-11.mit.edu. They
- can be found in the file pub/linux/ALPHA/scsi/fscsi-a06.pl1. Some
- of these are simple cleanup things to fix compile warnings, but there is
- one substantive change that I would like people to try.
-
- Previously we were sending an INQUIRY command to each
- target/lun combination at boot time, and we were using this to
- determine what devices were available. Unfortunately, some devices
- seem to respond with the same information to each lun, and the scsi
- code was becoming confused.
-
- What I have done to get around this is to first send a
- TEST_UNIT_READY to each target/lun combination. I then look at the
- return status, and decide if it looks like there is really a device
- there (some error conditions still indicate an actual device present).
- If there is, then we send the INQUIRY. This approach solves
- the problem in one of the cases where we were having a problem.
-
- I would like people to try this to make sure that all of their
- devices are properly recognized (and each one is only recognized
- once).
-
- There are also a couple of bugfixes to the 7000fasst code included.
-
- -Eric
- --
- Eric Youngdale
-