igb: Combine all flag info fields into a single tx_flags structure

This change is meant to combine all of the TX flags fields into one u32
flags field so that it can be stored into the tx_buffer_info structure.
This includes the time stamp flag as well as mapped_as_page flag info.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by:  Aaron Brown  <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index 1608110..b71d186 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -130,6 +130,15 @@
 
 #define IGB_MNG_VLAN_NONE -1
 
+#define IGB_TX_FLAGS_CSUM		0x00000001
+#define IGB_TX_FLAGS_VLAN		0x00000002
+#define IGB_TX_FLAGS_TSO		0x00000004
+#define IGB_TX_FLAGS_IPV4		0x00000008
+#define IGB_TX_FLAGS_TSTAMP		0x00000010
+#define IGB_TX_FLAGS_MAPPED_AS_PAGE	0x00000020
+#define IGB_TX_FLAGS_VLAN_MASK		0xffff0000
+#define IGB_TX_FLAGS_VLAN_SHIFT	16
+
 /* wrapper around a pointer to a socket buffer,
  * so a DMA handle can be stored along with the buffer */
 struct igb_tx_buffer {