scsi: qla2xxx: Add 28xx flash primary/secondary status/image mechanism

Includes the following:
- correction to 27xx image status struct;
- factoring of 27xx image status validating routines to make common;
- image status generation compare that works across zero wrap;
- bsg interface to report current active images (as loaded by driver).

Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Mike Hernandez <mhernandez@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index b9b1aaa..9dbd0dc 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -1515,6 +1515,18 @@ struct qla_flt_header {
 #define FLT_REG_VPD_SEC_27XX_2	0xD8
 #define FLT_REG_VPD_SEC_27XX_3	0xDA
 
+/* 28xx */
+#define FLT_REG_AUX_IMG_PRI_28XX	0x125
+#define FLT_REG_AUX_IMG_SEC_28XX	0x126
+#define FLT_REG_VPD_SEC_28XX_0		0x10C
+#define FLT_REG_VPD_SEC_28XX_1		0x10E
+#define FLT_REG_VPD_SEC_28XX_2		0x110
+#define FLT_REG_VPD_SEC_28XX_3		0x112
+#define FLT_REG_NVRAM_SEC_28XX_0	0x10D
+#define FLT_REG_NVRAM_SEC_28XX_1	0x10F
+#define FLT_REG_NVRAM_SEC_28XX_2	0x111
+#define FLT_REG_NVRAM_SEC_28XX_3	0x113
+
 struct qla_flt_region {
 	uint16_t code;
 	uint8_t attribute;