diff options
| author | Chandrakanth Patil <chandrakanth.patil@broadcom.com> | 2021-05-28 18:43:06 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-06-02 01:06:33 -0400 |
| commit | 9bedd36e9146b34dda4d6994e3aa1d72bc6442c1 (patch) | |
| tree | ecb58404985a2e45949f2a8d76c3c1726e88a623 /crypto/seqiv.c | |
| parent | ae6874ba4b43c5a00065f48599811a09d33b873d (diff) | |
scsi: megaraid_sas: Handle missing interrupts while re-enabling IRQs
While reenabling the IRQ after IRQ poll there may be a small window for the
firmware to post the replies with interrupts raised. In that case the
driver will not see the interrupts which leads to I/O timeout.
This issue only happens when there are many I/O completions on a single
reply queue. This forces the driver to switch between the interrupt and IRQ
context.
Make the driver process the reply queue one more time after enabling the
IRQ.
Link: https://lore.kernel.org/linux-scsi/20201102072746.27410-1-sreekanth.reddy@broadcom.com/
Link: https://lore.kernel.org/r/20210528131307.25683-5-chandrakanth.patil@broadcom.com
Cc: Tomas Henzl <thenzl@redhat.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'crypto/seqiv.c')
0 files changed, 0 insertions, 0 deletions