Commit b6e2ef67 authored Dec 07, 2018 by Dave Carroll Committed by Martin K. Petersen Dec 19, 2018

scsi: smartpqi: add no_write_same for logical volumes



During slave_alloc, for logical volumes include no_write_same into the
scsi_device structure. This will insure that WRITE_SAME will not be used
for LD's.

Reviewed-by: Ajish Koshy <ajish.koshy@microsemi.com>
Reviewed-by: Murthy Bhat <murthy.bhat@microsemi.com>
Reviewed-by: Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com>
Reviewed-by: Justin Lindley <justin.lindley@microsemi.com>
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

parent 3406384b

drivers/scsi/smartpqi/smartpqi_init.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -176,6 +176,11 @@ static inline void pqi_scsi_done(struct scsi_cmnd *scmd)
		scmd->scsi_done(scmd);
		}

		static inline void pqi_disable_write_same(struct scsi_device *sdev)
		{
		sdev->no_write_same = 1;
		}

		static inline bool pqi_scsi3addr_equal(u8 scsi3addr1, u8 scsi3addr2)
		{
		return memcmp(scsi3addr1, scsi3addr2, 8) == 0;
		@@ -5326,6 +5331,8 @@ static int pqi_slave_alloc(struct scsi_device *sdev)
		scsi_change_queue_depth(sdev,
		device->advertised_queue_depth);
		}
		if (pqi_is_logical_device(device))
		pqi_disable_write_same(sdev);
		}

		spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);