freebsd-nq/sys/dev/mps
Conrad Meyer 8532d381a9 Add BUF_TRACKING and FULL_BUF_TRACKING buffer debugging
Upstream the BUF_TRACKING and FULL_BUF_TRACKING buffer debugging code.
This can be handy in tracking down what code touched hung bios and bufs
last. The full history is especially useful, but adds enough bloat that
it shouldn't be enabled in release builds.

Function names (or arbitrary string constants) are tracked in a
fixed-size ring in bufs. Bios gain a pointer to the upper buf for
tracking. SCSI CCBs gain a pointer to the upper bio for tracking.

Reviewed by:	markj
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8366
2016-10-31 23:09:52 +00:00
..
mpi sys/dev: minor spelling fixes. 2016-05-03 03:41:25 +00:00
mps_config.c - No log bit in IOCStatus and endian-safe changes. 2016-06-20 18:14:51 +00:00
mps_ioctl.h
mps_mapping.c Add sysctls for dumping out the device mapping tables. I'm finding this 2016-02-04 23:38:55 +00:00
mps_mapping.h sys/dev: minor spelling fixes. 2016-05-03 03:41:25 +00:00
mps_pci.c
mps_sas_lsi.c - No log bit in IOCStatus and endian-safe changes. 2016-06-20 18:14:51 +00:00
mps_sas.c Add BUF_TRACKING and FULL_BUF_TRACKING buffer debugging 2016-10-31 23:09:52 +00:00
mps_sas.h
mps_table.c
mps_table.h
mps_user.c - No log bit in IOCStatus and endian-safe changes. 2016-06-20 18:14:51 +00:00
mps.c Use real values to calculate Max I/O size instead of guessing. 2016-07-12 19:34:10 +00:00
mpsvar.h Use real values to calculate Max I/O size instead of guessing. 2016-07-12 19:34:10 +00:00