diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 15eb2bd..0a277c1 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -985,14 +985,17 @@
 #define  DEFAULT_MB_RDMA_LOW_WATER	 0x00000050
 #define  DEFAULT_MB_RDMA_LOW_WATER_5705	 0x00000000
 #define  DEFAULT_MB_RDMA_LOW_WATER_JUMBO 0x00000130
+#define  DEFAULT_MB_RDMA_LOW_WATER_JUMBO_5780 0x00000000
 #define BUFMGR_MB_MACRX_LOW_WATER	0x00004414
 #define  DEFAULT_MB_MACRX_LOW_WATER	  0x00000020
 #define  DEFAULT_MB_MACRX_LOW_WATER_5705  0x00000010
 #define  DEFAULT_MB_MACRX_LOW_WATER_JUMBO 0x00000098
+#define  DEFAULT_MB_MACRX_LOW_WATER_JUMBO_5780 0x0000004b
 #define BUFMGR_MB_HIGH_WATER		0x00004418
 #define  DEFAULT_MB_HIGH_WATER		 0x00000060
 #define  DEFAULT_MB_HIGH_WATER_5705	 0x00000060
 #define  DEFAULT_MB_HIGH_WATER_JUMBO	 0x0000017c
+#define  DEFAULT_MB_HIGH_WATER_JUMBO_5780 0x00000096
 #define BUFMGR_RX_MB_ALLOC_REQ		0x0000441c
 #define  BUFMGR_MB_ALLOC_BIT		 0x10000000
 #define BUFMGR_RX_MB_ALLOC_RESP		0x00004420