diff options
| author | James Smart <jsmart2021@gmail.com> | 2018-01-30 15:58:49 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-02-12 11:43:23 -0500 |
| commit | 6e8e1c14c61e54253098521127cd5ac0b959dd32 (patch) | |
| tree | 22e7873a5706acf590ec091fe326d95739baadc6 /tools/perf/scripts/python/syscall-counts.py | |
| parent | 8ae337013674d5c1e803429356b85cba2ce12067 (diff) | |
| download | linux-6e8e1c14c61e54253098521127cd5ac0b959dd32.tar.gz linux-6e8e1c14c61e54253098521127cd5ac0b959dd32.zip | |
scsi: lpfc: Add WQ Full Logic for NVME Target
I/O conditions on the nvme target may have the driver submitting to a
full hardware wq. The hardware wq is a shared resource among all nvme
controllers. When the driver hit a full wq, it failed the io posting
back to the nvme-fc transport, which then escalated it into errors.
Correct by maintaining a sideband queue within the driver that is added
to when the WQ full condition is hit, and drained from as soon as new WQ
space opens up.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions