diff options
| author | Ming Lei <ming.lei@redhat.com> | 2018-03-13 17:42:40 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-03-14 23:31:13 -0400 |
| commit | adbe552349f2d1e48357a00e564d26135e586634 (patch) | |
| tree | 2ee8192ceab0907d10c173f3b7a4bcd0d36febb9 /include/scsi | |
| parent | 8b834bff1b73dce46f4e9f5e84af6f73fed8b0ef (diff) | |
scsi: megaraid_sas: fix selection of reply queue
Since commit 84676c1f21e8 ("genirq/affinity: assign vectors to all
possible CPUs") we could end up with an MSI-X vector that did not have
any online CPUs mapped. This would lead to I/O hangs since there was no
CPU to receive the completion.
Retrieve IRQ affinity information using pci_irq_get_affinity() and use
this mapping to choose a reply queue.
[mkp: tweaked commit desc]
Cc: Hannes Reinecke <hare@suse.de>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
Cc: James Bottomley <james.bottomley@hansenpartnership.com>,
Cc: Christoph Hellwig <hch@lst.de>,
Cc: Don Brace <don.brace@microsemi.com>
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Meelis Roos <mroos@linux.ee>
Cc: Artem Bityutskiy <artem.bityutskiy@intel.com>
Fixes: 84676c1f21e8 ("genirq/affinity: assign vectors to all possible CPUs")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Acked-by: Kashyap Desai <kashyap.desai@broadcom.com>
Tested-by: Kashyap Desai <kashyap.desai@broadcom.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/scsi')
0 files changed, 0 insertions, 0 deletions