5 Commits

Author SHA1 Message Date
Kenneth D. Merry
777cfc2acd Some fixes for the CD and DA drivers from bde. (and some of my own as
well)  Among them:

[ cd driver ]
1. Old labeling code was still there.
2. Error handling for dsopen() was broken (no test for the `error'
   returned by dsopen(); bogus test of an `error' that is known to be 0).
3. cdopen() closed the physical device after certain errors although there
   may still be open partitions on it.
4. cdclose() closed the physical device although there may still be open
   partitions on it.
5. Some printf format fixes was incomplete or missing.
6. cdioctl() truncated unit numbers mod 256.
7. cdioctl() was missing locking.

[ da driver ]
1. daclose() closed the physical device although there may still be open
   partitions on it.  This was fixed many years ago in sd.c rev.1.57.
2. A minor optimization (the dk_slices != NULL test) in sdopen() became
   uglier in daopen().  It is not worth doing.  da only regressed compared
   with od and my version of sd, since I never committed the change to sd.
   daopen() should probably do less if some partition is already open.
   This is not addressed by the diffs.
[ ... ]
5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable.

- Added a getdev CCB call in the cdopen() and daopen() calls so that the
  vendor name and device name are available for the disklabel.  (suggested
  by bde)

- Removed vestigal devfs support in both drivers, since we can't properly
  work with devfs yet.  (ask bde for details on this)

- Cleaned up the probe code in both drivers in the failure cases.  There
  were a number of things wrong here.  The peripheral driver instances
  weren't getting properly cleaned up.  Sometimes the wrong probe message
  would get printed out (with the failure message appended), so it wasn't
  very clear that we failed to attach.  SCSI sense information was printed,
  even when the error in question wasn't a SCSI error.  I put similar fixes
  into the changer driver in revision 1.2 of scsi_ch.c.

Reviewed by:	gibbs
Submitted by:	bde (partially)
1998-10-07 02:57:57 +00:00
Kenneth D. Merry
54cbee5db2 Treat not ready errors (asc 0x04) as non-fatal errors for attach. We
already allowed medium not present type errors (0x3a), but some Philips and
HP WORM drives return 0x04,0x00 when you issue a read capacity without
media in the drive.
1998-09-23 03:17:08 +00:00
Kenneth D. Merry
050279e55a Some fixes to the CD driver that may fix PR kern/7996. The data direction
flags on some of the operations in the driver weren't quite right.  Also,
clean up scsi_cd.h, change u_char to u_int8_t.

I'm surprised this problem didn't show up sooner.  (the code has been in
there almost a year and a half)

PR:		        7996
Reviewed by:	        ken
Submitted (mostly) by:	gibbs
1998-09-20 22:48:15 +00:00
Justin T. Gibbs
0c4930f525 Don't invalidate devices due to unexpected unit attention errors. In
a perfect world, we'd notice the UA and do some device validation to ensure
that the device hasn't changed.  We may get this before the year ends,
but not before 3.0R.  This change gives the adminstrator ample ammunition
to take off a foot or two, but hey this *is* UN*X.
1998-09-20 07:17:11 +00:00
Justin T. Gibbs
76babe507b SCSI Peripheral drivers for CAM:
da	- Direct Access Devices (disks, optical devices, SS disks)
	cd	- CDROM (or devices that can act like them, WORM, CD-RW, etc)
	ch	- Medium Changer devices.
	sa	- Sequential Access Devices (tape drives)
	pass	- Application pass-thru driver
	targ	- Target Mode "Processor Target" Emulator
	pt	- Processor Target Devices (scanners, cpus, etc.)

Submitted by:	The CAM Team
1998-09-15 06:36:34 +00:00