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scsi: qla2xxx: Fix Target mode handling with Multiqueue changes.

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- Fix race condition between dpc_thread accessing Multiqueue resources
  and qla2x00_remove_one thread trying to free resource.
- Fix out of order free for Multiqueue resources. Also, Multiqueue
  interrupts needs a workqueue. Interrupt needed to stop before
  the wq can be destroyed.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Quinn Tran
2016-12-12 14:40:09 -08:00
committed by Martin K. Petersen
parent 5601236b6f
commit 093df73771
4 changed files with 50 additions and 28 deletions
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3
drivers/scsi/qla2xxx/qla_def.h
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@@ -2734,7 +2734,8 @@ struct isp_operations {
#define QLA_MSIX_DEFAULT 0x00
#define QLA_MSIX_RSP_Q 0x01
#define QLA_MSIX_QPAIR_MULTIQ_RSP_Q 0x02
#define QLA_ATIO_VECTOR 0x02
#define QLA_MSIX_QPAIR_MULTIQ_RSP_Q 0x03
#define QLA_MIDX_DEFAULT 0
#define QLA_MIDX_RSP_Q 1