[PATCH net-next v2 1/9] net: introduce the MACSEC netdev feature

[Antoine Tenart <antoine.tenart@bootlin.com>]

This patch introduce a new netdev feature, which will be used by drivers
to state they can perform MACsec transformations in hardware.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
---
 include/linux/netdev_features.h | 3 +++
 net/core/ethtool.c              | 1 +
 2 files changed, 4 insertions(+)

diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 4b19c544c59a..020f8542b92f 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -81,6 +81,8 @@ enum {
 	NETIF_F_GRO_HW_BIT,		/* Hardware Generic receive offload */
 	NETIF_F_HW_TLS_RECORD_BIT,	/* Offload TLS record */
 
+	NETIF_F_HW_MACSEC_BIT,		/* Offload MACsec operations */
+
 	/*
 	 * Add your fresh new feature above and remember to update
 	 * netdev_features_strings[] in net/core/ethtool.c and maybe
@@ -150,6 +152,7 @@ enum {
 #define NETIF_F_GSO_UDP_L4	__NETIF_F(GSO_UDP_L4)
 #define NETIF_F_HW_TLS_TX	__NETIF_F(HW_TLS_TX)
 #define NETIF_F_HW_TLS_RX	__NETIF_F(HW_TLS_RX)
+#define NETIF_F_HW_MACSEC	__NETIF_F(HW_MACSEC)
 
 /* Finds the next feature with the highest number of the range of start till 0.
  */
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 6288e69e94fc..4a410e0ff179 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -111,6 +111,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
 	[NETIF_F_HW_TLS_RECORD_BIT] =	"tls-hw-record",
 	[NETIF_F_HW_TLS_TX_BIT] =	 "tls-hw-tx-offload",
 	[NETIF_F_HW_TLS_RX_BIT] =	 "tls-hw-rx-offload",
+	[NETIF_F_HW_MACSEC_BIT] =	 "macsec-hw-offload",
 };
 
 static const char
-- 
2.21.0