ethdev: function to compare ethernet addresses

To support i40e, function is_same_ether_addr() has been added to
compare two ethernet address.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
Signed-off-by: Jing Chen <jing.d.chen@intel.com>
Acked-by: Cunming Liang <cunming.liang@intel.com>
Acked-by: Jijiang Liu <jijiang.liu@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: Heqing Zhu <heqing.zhu@intel.com>
Tested-by: Waterman Cao <waterman.cao@intel.com>

diff --git a/lib/librte_ether/rte_ether.h b/lib/librte_ether/rte_ether.h
index 08feb41..a25ca10 100644 (file)
--- a/lib/librte_ether/rte_ether.h
+++ b/lib/librte_ether/rte_ether.h
@@ -85,6 +85,30 @@ struct ether_addr {
 #define ETHER_LOCAL_ADMIN_ADDR 0x02 /**< Locally assigned Eth. address. */
 #define ETHER_GROUP_ADDR       0x01 /**< Multicast or broadcast Eth. address. */
 
+/**
+ * Check if two Ethernet addresses are the same.
+ *
+ * @param ea1
+ *  A pointer to the first ether_addr structure containing
+ *  the ethernet address.
+ * @param ea2
+ *  A pointer to the second ether_addr structure containing
+ *  the ethernet address.
+ *
+ * @return
+ *  True  (1) if the given two ethernet address are the same;
+ *  False (0) otherwise.
+ */
+static inline int is_same_ether_addr(const struct ether_addr *ea1,
+                                    const struct ether_addr *ea2)
+{
+       int i;
+       for (i = 0; i < ETHER_ADDR_LEN; i++)
+               if (ea1->addr_bytes[i] != ea2->addr_bytes[i])
+                       return 0;
+       return 1;
+}
+
 /**
  * Check if an Ethernet address is filled with zeros.
  *