Commit Graph

5 Commits

Author SHA1 Message Date
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
9eec0f7d5a Don't leave the device queue in a frozen state if the Synchronize Cache
command on close fails.
1998-09-19 04:59:35 +00:00
Kenneth D. Merry
37b9efd37b Fix the CAM code so that people can compile kernels with the CD driver but
without the DA driver.

The problem was that the CD driver depended on scsi_read_write() and
scsi_start_stop(), which were defined in scsi_da.c.

I moved both functions, and their associated data structures and defines
from scsi_da.* to scsi_all.*.  This is technically the "wrong" thing to do
since those commands are really only for direct-access type devices, not
for all SCSI devices.  I think, though, that the advantage (allowing people
to compile kernels without the disk driver) outweighs any architectural
purity arguments.

PR:		kern/7969
Reviewed by:	gibbs
1998-09-18 22:33:59 +00:00
Kenneth D. Merry
c5e6ca4410 Some Alpha patches for CAM from Doug Rabson.
Reviewed by:	gibbs
Submitted by:	dfr
1998-09-16 23:30:11 +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