Major bugfix and minor update. This should resolve the current issues

with the driver locking up under load.

 - Restructure so that we use a static pool of commands/FIBs, rather than
   allocating them in clusters.  The cluster allocation just made things
   more complicated, and allowed us to waste more memory in peak load
   situations.
 - Make queueing macros more like my other drivers.  This adds queue stats
   for free.  Add some debugging to take advantage of this.
 - Reimplement the periodic timeout scan.  Kick the interrupt handler
   and the start routine every scan as well, just to be safe.  Track busy
   commands properly.
 - Bring resource cleanup into line with resource allocation.  We should
   now clean up correctly after a failed probe/unload/etc.
 - Try to start new commands when old ones are completed.  We weren't doing
   this before, which could lead to deadlock when the controller was full.
 - Don't try to build a new command if we have found a deferred command.
   This could cause us to lose the deferred command.
 - Use diskerr() to report I/O errors.
 - Don't bail if the AdapterInfo structure is the wrong size.  Some variation
   seems to be normal.  We need to improve our handing of 2.x firmware sets.
 - Improve some comments in an attempt to try to make things clearer.
 - Restructure to avoid some warnings.

1 files changed, 11 insertions, 1 deletions

diff --git a/sys/dev/aac/aac_debug.c b/sys/dev/aac/aac_debug.c
index 09293ad..3298502 100644
--- a/sys/dev/aac/aac_debug.c
+++ b/sys/dev/aac/aac_debug.c
@@ -44,6 +44,7 @@
 #include <machine/bus.h>
 
 #include <dev/aac/aacreg.h>
+#include <dev/aac/aac_ioctl.h>
 #include <dev/aac/aacvar.h>
 
 void		aac_printstate0(void);
@@ -90,7 +91,16 @@ aac_print_queues(struct aac_softc *sc)
 		  sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX],
 		  sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX], 
 		  AAC_ADAP_HIGH_RESP_ENTRIES);
-
+    device_printf(sc->aac_dev, "AACQ_FREE      %d/%d\n", 
+		  sc->aac_qstat[AACQ_FREE].q_length, sc->aac_qstat[AACQ_FREE].q_max);
+    device_printf(sc->aac_dev, "AACQ_BIO       %d/%d\n", 
+		  sc->aac_qstat[AACQ_BIO].q_length, sc->aac_qstat[AACQ_BIO].q_max);
+    device_printf(sc->aac_dev, "AACQ_READY     %d/%d\n", 
+		  sc->aac_qstat[AACQ_READY].q_length, sc->aac_qstat[AACQ_READY].q_max);
+    device_printf(sc->aac_dev, "AACQ_BUSY      %d/%d\n", 
+		  sc->aac_qstat[AACQ_BUSY].q_length, sc->aac_qstat[AACQ_BUSY].q_max);
+    device_printf(sc->aac_dev, "AACQ_COMPLETE  %d/%d\n", 
+		  sc->aac_qstat[AACQ_COMPLETE].q_length, sc->aac_qstat[AACQ_COMPLETE].q_max);
 }
 
 /********************************************************************************