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

BugLink: http://bugs.launchpad.net/bugs/1687045
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>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index dc79524178ad5432d625806748ba3d4525a6845a..f72fe724074dfdfd5006317e435afb27da047ade 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1125,8 +1125,13 @@ 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);
 }
 
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