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| author | Arun Easi <aeasi@marvell.com> | 2022-08-26 13:25:57 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-09-01 07:30:55 +0300 |
| commit | 8bfc149ba24cb985d593c0b2ddcf03ce42febe0c (patch) | |
| tree | 16e2c659e3b4a80ecf9262d30c380658958f15cc /io_uring/uring_cmd.c | |
| parent | d9ba85efc3fc743aa3c958efa996f397719cdc2a (diff) | |
| download | linux-8bfc149ba24cb985d593c0b2ddcf03ce42febe0c.tar.xz | |
scsi: qla2xxx: Enhance driver tracing with separate tunable and more
Older tracing of driver messages was to:
- log only debug messages to kernel main trace buffer; and
- log only if extended logging bits corresponding to this message is
off
This has been modified and extended as follows:
- Tracing is now controlled via ql2xextended_error_logging_ktrace
module parameter. Bit usages same as ql2xextended_error_logging.
- Tracing uses "qla2xxx" trace instance, unless instance creation have
issues.
- Tracing is enabled (compile time tunable).
- All driver messages, include debug and log messages are now traced in
kernel trace buffer.
Trace messages can be viewed by looking at the qla2xxx instance at:
/sys/kernel/tracing/instances/qla2xxx/trace
Trace tunable that takes the same bit mask as ql2xextended_error_logging
is:
ql2xextended_error_logging_ktrace (default=1)
Link: https://lore.kernel.org/r/20220826102559.17474-6-njavali@marvell.com
Suggested-by: Daniel Wagner <dwagner@suse.de>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Tested-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'io_uring/uring_cmd.c')
0 files changed, 0 insertions, 0 deletions