scsi: qla2xxx: Add LR distance support from nvram bit
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.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 94eb169..bec641a 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -1699,6 +1699,15 @@ struct access_chip_rsp_84xx {
#define FAC_OPT_CMD_UNLOCK_SEMAPHORE 0x04
#define FAC_OPT_CMD_GET_SECTOR_SIZE 0x05
+/* enhanced features bit definitions */
+#define NEF_LR_DIST_ENABLE BIT_0
+
+/* LR Distance bit positions */
+#define LR_DIST_NV_POS 2
+#define LR_DIST_FW_POS 12
+#define LR_DIST_FW_SHIFT (LR_DIST_FW_POS - LR_DIST_NV_POS)
+#define LR_DIST_FW_FIELD(x) ((x) << LR_DIST_FW_SHIFT & 0xf000)
+
struct nvram_81xx {
/* NVRAM header. */
uint8_t id[4];
@@ -1841,16 +1850,13 @@ struct nvram_81xx {
uint8_t reserved_21[16];
uint16_t reserved_22[3];
- /*
- * BIT 0 = Extended BB credits for LR
- * BIT 1 = Virtual Fabric Enable
- * BIT 2 = Enhanced Features Unused
- * BIT 3-7 = Enhanced Features Reserved
+ /* Offset 406 (0x196) Enhanced Features
+ * BIT 0 = Extended BB credits for LR
+ * BIT 1 = Virtual Fabric Enable
+ * BIT 2-5 = Distance Support if BIT 0 is on
+ * BIT 6-15 = Unused
*/
- /* Enhanced Features */
- uint8_t enhanced_features;
-
- uint8_t reserved_23;
+ uint16_t enhanced_features;
uint16_t reserved_24[4];
/* Offset 416. */
