diff options
| author | Quinn Tran <[email protected]> | 2020-09-03 21:51:26 -0700 |
|---|---|---|
| committer | Martin K. Petersen <[email protected]> | 2020-09-22 18:42:49 -0400 |
| commit | 89c72f4245a8510ffdb0d1980944210b8bc6e49f (patch) | |
| tree | b81139c7985687e4aa13cba9d4e81114e61a97ab /tools/perf/scripts/python | |
| parent | 6152d20fa6703cf364253efc4eab31151558cb01 (diff) | |
scsi: qla2xxx: Add IOCB resource tracking
This patch tracks number of IOCB resources used in the I/O fast path. If
the number of used IOCBs reach a high water limit, driver would return the
I/O as busy and let upper layer retry. This prevents over subscription of
IOCB resources where any future error recovery command is unable to cut
through. Enable IOCB throttling by default.
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Himanshu Madhani <[email protected]>
Signed-off-by: Quinn Tran <[email protected]>
Signed-off-by: Arun Easi <[email protected]>
Signed-off-by: Nilesh Javali <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions