Commit Graph

122 Commits

Author SHA1 Message Date
Kenneth D. Merry
1b6833dbb1 Narrow the quirk entry for the Seagate Elite 9 a bit to just cover drives
with 71* firmware revisions.  Scott Mace <smace@intt.ORG> reports that
drives with 00* firmware revisions do tagged queueing just fine.
1998-10-14 22:51:51 +00:00
Kenneth D. Merry
8597eafed0 Disable tagged queueing for the Seagate Elite 9GB drives. They tend to get
hung up when you send tags to them too quickly.  (CAM is able to recover
from the problem, but this just avoids it altogether.)

Reviewed by:	gibbs
Reported by:	Bret Ford <bford@uop.cs.uop.edu>
	and:	Martin Renters <martin@tdc.on.ca>
1998-10-14 21:17:39 +00:00
Kenneth D. Merry
fce84cb42b Fix a bug in the scan lun code that showed up when we did the following
sequence of things:

- spin up a disk
  - send an async event to refresh the inquiry data
    - run through xpt_scan_lun() to re-probe the device
        - eventually finish the probe, but panic in xpt_done() because the
          periph pointer wasn't set.

Reviewed by:	gibbs
Reported by:	Philippe Regnauld <regnauld@deepo.prosa.dk>
1998-10-13 21:29:04 +00:00
Kenneth D. Merry
621a60d46b Add a "dummy light" (actually two dummy lights) to catch people who don't
have the passthrough device configured in their kernel.

This will hopefully reduce the number of people complaining that they can't
get {camcontrol, xmcd, tosha, cdrecord, etc.} to work.

Reviewed by:	gibbs
1998-10-12 21:54:13 +00:00
Justin T. Gibbs
2863f7b147 If the bus delay is >= 2 seconds, notify the user that we are waiting
for devices to settle.  This will hopefully allay any 'first installation'
fears that the machine has hung.
1998-10-10 21:10:36 +00:00
Justin T. Gibbs
2ba01e6ff4 Add a quirk entry for the CFP2107, another drive with broken
tagged queuing support.

Ensure that we report that a device supports tagged queuing even if
the system is waiting a "command count delay" before starting to use
them.

If a user disables disconnects on a device ensure that tagged queuing
is also turned off.  We did the right thing during initial configuration,
but could be confused by manual changes.
1998-10-07 03:25:21 +00:00
Kenneth D. Merry
b1d26455e0 Disable multi-lun probing and serial number inquiries for the Exabyte 8200. 1998-10-06 19:27:19 +00:00
Kenneth D. Merry
d05caa00c5 Add a new CAM debugging mode, CAM_DEBUG_CDB. This causes the kernel to
print out a one line description/dump of every SCSI CDB sent to a
particular debugging target or targets.

This is a good bit more useful than the other debugging modes, I think.

Change some things in LINT to note the availability of this new option.

Fix an erroneous argument to scsi_cdb_string() in scsi_all.c

Reviewed by:	gibbs
1998-10-02 21:00:58 +00:00
Justin T. Gibbs
03e3511b47 Correct problems with xpt_set_transfer_settings and async transfer
negotiation changes with wildcarded paths.
1998-09-25 22:35:56 +00:00
Justin T. Gibbs
f0adc79010 Fix a few problems with the tag delay code:
- Tagged devices were limited to one transaction (oops)
 - We revert to untagged with a tag delay if the user changed the
   transfer negotiation values (via perhaps camcontrol some day).
 - xpt_async did not use the expanded path in some cases which could
   cause a panic.
1998-09-24 22:43:54 +00:00
Justin T. Gibbs
fd21cc5ee0 Allow 5 untagged commands to go to a device before enabling tags after
enabling transfer negotiations, a BDR, or a bus reset to allow the controller
driver to negotiate without tagged messages getting in the way.  Some
devices are confused by attempts to negotiate and tag at the same time.
Some controllers (e.g. BT MultiMaster with certain firmware revs) will
never negotiate if you don't give them an untagged "window" to perform
negotiation in.

Bump the maximum tag count to 255.  The system reclaims unused tag space
as the tag count is dropped anyway, so we might as well try the max.

We should probably use a larger type than u_int8_t to hold our tag value
as SCSI over certain mediums allows for higher values.

Reviewed by:	 Kenneth Merry <ken@FreeBSD.org>
1998-09-23 03:03:19 +00:00
Kenneth D. Merry
f24c39c7d5 Add several quirks:
Western Digital Enterprise drives have sorry performance (1.5MB/sec versus
8MB/sec) when doing tagged queueing.  Disable tagged queueing for them.

Submitted by:	Andrew Gallatin <gallatin@cs.duke.edu>

Some Sony CDROM drives don't like it when we probe more than one LUN.

Verified by:    Jean-Marc Zucconi <jmz@FreeBSD.ORG>

Some Sony CD-R's don't like multi-LUN probing either.

Submitted by:   Parag Patel <parag@cgt.com>
1998-09-22 20:41:12 +00:00
Justin T. Gibbs
53b062d3cc cam.c:
Clear up trailing NULs in cam_strvis.

cam_xpt.c:
	Nuke an experimental quirk entry for the Toshiba 3401.  The real
	problem with this device turned out to be a bug in the aic7xxx
	driver that was fixed months ago.

	Add a quirk entry to inhibit multiple lun scanning and serial number
	probing of DPT RAID volumes.  My DPT controller hangs up solid when
	I do either of these things to a RAID 1 volume.
1998-09-22 04:53:23 +00:00
Justin T. Gibbs
e471e974cc cam_xpt.c:
Add quirk entry for a Samsung drive that doesn't like experiencing
	the queue full condition.

	Bump the timeouts for all probe activities to 60s.  We don't know
	what the seletion timeout (or equivelent on other mediums) is
	for controllers, which can make the transactions at the tail
	end of a parallel probe take a while to complete.  The DPT
	seems to be a card that takes a long time to see a selection timeout.

cam_periph.c:
	Don't call a device "gone" after a single selection timeout.  We
	need to come up with a better policy.  Until that time, you'll
	have to manually re-scan a bus via camcontrol for the system to
	decide that a device is really gone.  This should give devices
	experiencing temporary insanity to escape death.
1998-09-20 07:14:36 +00:00
Justin T. Gibbs
ecdf111388 Only deregister out configuration hook manually if there are no SCSI
busses to configure.
1998-09-20 05:03:34 +00:00
Kenneth D. Merry
6747168dc9 Change the Atlas II quirk entries so they work with differential Atlas
II's.  Also, add a quirk entry for the 2 gig Atlas II.

Partially Submitted by:	Ted Buswell <tbuswell@mediaone.net>
1998-09-18 19:55:34 +00:00
Kenneth D. Merry
a822eb2a8b Fix a formatting error.
Fix a problem reported by bde:  setting SCSI_DELAY to 0 doesn't work.  Now,
when the user sets SCSI_DELAY to 0, we re-set it to the minimum allowable
bus settle delay (100ms).

Fix a potential panic in xptfinishconfigfunc() if the CCB passed in is
NULL.  Reported by, I think, Nicolas Souchu.  Fix a memory leak in the same
function (we created a path, but didn't free it) by allocating the getdev
CCB and path on the stack.

Reviewed by:	gibbs
1998-09-17 23:58:53 +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
9bc66b835c Properly allocate our, per lun, probe peripheral softc from
the TEMP malloc pool.

Noticed by: Don Lewis <Don.Lewis@tsc.tdk.com>
1998-09-16 13:24:37 +00:00
Kenneth D. Merry
66a0780e8e Check to make sure that this device is opened read-write, not just read
only.  Previously, if the device was chmoded 644, someone could open it
with the O_RDONLY flag and issue any ioctl to the device.

Reviewed by:	imp, gibbs
1998-09-16 00:11:53 +00:00
Justin T. Gibbs
5ee58402df Correct printf format bugs. 1998-09-15 22:05:44 +00:00
Justin T. Gibbs
8b8a9b1d3e CAM Transport Layer (XPT).
Submitted by:	The CAM Team
1998-09-15 06:33:23 +00:00