scsi: qla2xxx: Add fix to read correct register value for ISP82xx.

commit bf6061b17a8d47ef0d9344d3ef576a4ff0edf793 upstream.

Add fix to read correct register value for ISP82xx, during check for
register disconnect.ISP82xx has different base register.

Fixes: a465537ad1a4 ("qla2xxx: Disable the adapter and skip error recovery in case of register disconnect")
Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 4f361d8d84be..734e592a247e 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -968,8 +968,13 @@ static inline
 uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
 {
         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+        struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 
-        return ((RD_REG_DWORD(&reg->host_status)) == ISP_REG_DISCONNECT);
+        if (IS_P3P_TYPE(ha))
+                return ((RD_REG_DWORD(&reg82->host_int)) == ISP_REG_DISCONNECT);
+        else
+                return ((RD_REG_DWORD(&reg->host_status)) ==
+                        ISP_REG_DISCONNECT);
 }
 
 /**************************************************************************