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14 Commits

Author SHA1 Message Date
Alexander Motin
8cc6481cd5 Increase device CCB queue array size by CAM_RL_VALUES - 1 (4) elements. 
It is required to store extra recovery requests in case of bus resets.
On ATA/SATA this fixes assertion panics on HEAD with INVARIANTS enabled or
possible memory corruptions otherwise if timeout/reset happens when device
CCB queue is already full.

Reported by:	gibbs@
MFC after:	1 week
 2012-10-11 15:21:07 +00:00
Alexander Motin
d6e285946d Change queue overflow checks from DIAGNOSTIC+panic() to KASSERT() to make 
them enabled on HEAD by default. It is probably better to do single compare
then hunt for unexpected memory corruption.
 2012-09-28 12:13:34 +00:00
Ed Schouten
d745c852be Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 
This means that their use is restricted to a single C file.
 2011-11-07 06:44:47 +00:00
Alexander Motin
1f1158b28d MFp4: 
Some more missed parts from previous commits.
 2009-11-14 20:30:42 +00:00
Alexander Motin
20a7933f53 After thinking again, implement cam_ccbq_fini(). 
This is effectively NULL change, but makes this API a bit more consistent.
 2009-10-22 21:07:32 +00:00
Tai-hwa Liang
362abc449c - Providing fine-grained malloc statistic by replacing M_DEVBUF with 
module-specific malloc types.  These should help us to pinpoint the
  possible memory leakage in the future.
- Implementing xpt_alloc_ccb_nowait() and replacing all malloc/free based
  CCB memory management with xpt_alloc_ccb[_nowait]/xpt_free_ccb.  Hopefully
  this would be helpful if someday we move the CCB allocator to use UMA
  instead of malloc().

Encouraged by:	jeffr, rwatson
Reviewed by:	gibbs, scottl
Approved by:	re (scottl)
 2005-07-01 15:21:30 +00:00
Warner Losh
898b0535b7 Start each of the license/copyright comments with /*- 2005-01-05 22:34:37 +00:00
David E. O'Brien
9c963d873e Use __FBSDID(). 2003-06-10 17:50:20 +00:00
Jens Schweikhardt
d64ada501a Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/ 
Add FreeBSD Id tag where missing.
 2002-12-30 21:18:15 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Justin T. Gibbs
f22adc7f6d Fix a long standing bug in the camq teardown code. 1999-08-16 02:23:42 +00:00
Justin T. Gibbs
5a526431f8 cam_periph.c: 
Move handling of CAM_AUTOSENSE_FAIL into block dealing with
	all other scsi status errors.

cam_queue.c:
cam_queue.h:
	Fix 'off by one' heap bug in a more efficient manner.  Since
	heap algorithms like to deal with indexes started from 1,
	offset our heap array pointer at allocation time to make this
	so for a C environment.  This makes the implementation of the
	algorithm a bit more efficient.

cam_xpt.c:
	Use macros for accessing the head of the heap so that code
	is isolated from implementation details of the heap.
 1999-04-19 21:26:08 +00:00
Justin T. Gibbs
8bad620d54 Remove camq_regen(). We already perform modular comparisons 
for generation counts, so no further steps to deal with generation
count wrap are required.

Fix an off by one problem in the camq heap code.
 1999-04-07 22:57:48 +00:00
Justin T. Gibbs
8b8a9b1d3e CAM Transport Layer (XPT). 
Submitted by:	The CAM Team
 1998-09-15 06:33:23 +00:00