#define ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_SHIFT 6
/* Recalculate Tunnel UDP/GRE Checksum (Depending on Tunnel Type) */
#define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_MASK 0x1
+/* Recalculate Tunnel UDP/GRE Checksum (Depending on Tunnel Type). In case of
+ * GRE tunnel, this flag means GRE CSO, and in this case GRE checksum field
+ * Must be present.
+ */
+#define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_MASK 0x1
#define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_SHIFT 7
};