Files
linux/drivers
Justin Tee 4623713e7a scsi: lpfc: Remove IRQF_ONESHOT flag from threaded IRQ handling
IRQF_ONESHOT is found to mask HBA generated interrupts when thread_fn is
running.  As a result, some EQEs/CQEs miss timely processing resulting in
SCSI layer attempts to abort commands due to io_timeout.  Abort CQEs are
also not processed leading to the observations of hangs and spam of "0748
abort handler timed out waiting for aborting I/O" log messages.

Remove the IRQF_ONESHOT flag.  The cmpxchg and xchg atomic operations on
lpfc_queue->queue_claimed already protect potential parallel access to an
EQ/CQ should the thread_fn get interrupted by the primary irq handler.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20240305200503.57317-4-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-03-10 18:56:43 -04:00
..
2024-01-19 08:08:53 -06:00
2024-01-05 15:55:41 +05:30
2024-01-04 17:03:47 +01:00
2024-01-12 12:38:37 +01:00