diff options
| author |   Igor Pylypiv <ipylypiv@google.com> | 2024-11-26 22:49:23 +0000 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2024-12-04 14:46:58 -0500 |
| commit | b64004dbcd239d5eeac0b41c167a306291510d55 (patch) | |
| tree | 039702db034cefc7d68ab4394cc9818a9eb9b7a7 /tools/testing/ktest/examples/include/ssh:/git@git.zx2c4.com/git: | |
| parent | scsi: pm80xx: Use dynamic tag numbers for PHY start and stop (diff) | |
scsi: pm80xx: Increase reserved tags from 8 to 128
Increase the number of reserved tags to prevent command processing failures
when the driver is under stress. 8 reserved tags are quickly getting all
used up leading to errors when command completions are delayed.
The driver needs ~512 ccbs/tags for maximum I/O utilization:
16 (max disks) * 32 (max SATA queue depth) = ~512 ccbs/tags.
By reserving 128 tags the driver will still have plenty of tags/ccbs left:
1024 (max ccbs) - 128 (reserved slot) = 896 tags/ccbs left.
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Salomon Dushimirimana <salomondush@google.com>
Link: https://lore.kernel.org/r/20241126224923.973528-1-salomondush@google.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/testing/ktest/examples/include/ssh:/git@git.zx2c4.com/git:')
0 files changed, 0 insertions, 0 deletions