net/ice: fix max frame size

[dpdk.git] / drivers / net / ice / ice_ethdev.h

diff --git a/drivers/net/ice/ice_ethdev.h b/drivers/net/ice/ice_ethdev.h
index 9c29f22..f3ed02e 100644 (file)
--- a/drivers/net/ice/ice_ethdev.h
+++ b/drivers/net/ice/ice_ethdev.h
@@ -117,6 +117,13 @@
        ETH_RSS_NONFRAG_IPV6_OTHER | \
        ETH_RSS_L2_PAYLOAD)
 
+/**
+ * The overhead from MTU to max frame size.
+ * Considering QinQ packet, the VLAN tag needs to be counted twice.
+ */
+#define ICE_ETH_OVERHEAD \
+       (ETHER_HDR_LEN + ETHER_CRC_LEN + ICE_VLAN_TAG_SIZE * 2)
+
 struct ice_adapter;
 
 /**