[SCSI] hptiop: fix RR312x in hosts with >12GB
As the limitation of RR312x's dma engine, the HBA can not access host memory
over 12GB. This fixes
https://bugzilla.kernel.org/show_bug.cgi?id=14311
[alan: resurrected bug from 2009 and pushed upstream]
Reported-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/hptiop.h b/drivers/scsi/hptiop.h
index 0b871c0..baa648d 100644
--- a/drivers/scsi/hptiop.h
+++ b/drivers/scsi/hptiop.h
@@ -297,6 +297,7 @@
int (*iop_intr)(struct hptiop_hba *hba);
void (*post_msg)(struct hptiop_hba *hba, u32 msg);
void (*post_req)(struct hptiop_hba *hba, struct hptiop_request *_req);
+ int hw_dma_bit_mask;
};
#define HPT_IOCTL_RESULT_OK 0
