From: Don Brace don.brace@microchip.com
[ Upstream commit c6d3ee209b9e863c6251f72101511340451ca324 ]
Correct SCSI midlayer sending more requests than exposed host queue depth causing firmware ASSERT and lockup issues by enabling host-wide tags.
Note: This also results in better performance.
Link: https://lore.kernel.org/r/161549369787.25025.8975999483518581619.stgit@brunh... Suggested-by: Ming Lei ming.lei@redhat.com Suggested-by: John Garry john.garry@huawei.com Reviewed-by: Scott Benesh scott.benesh@microchip.com Reviewed-by: Scott Teel scott.teel@microchip.com Reviewed-by: Mike McGowen mike.mcgowen@microchip.com Reviewed-by: Kevin Barnett kevin.barnett@microchip.com Signed-off-by: Don Brace don.brace@microchip.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/smartpqi/smartpqi_init.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index a1dacb6e993e..3795804ea869 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -6598,6 +6598,7 @@ static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info) shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0); shost->unique_id = shost->irq; shost->nr_hw_queues = ctrl_info->num_queue_groups; + shost->host_tagset = 1; shost->hostdata[0] = (unsigned long)ctrl_info;
rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev);