[PATCH net-next 01/10] net: introduce the MACSEC netdev feature

[Antoine Tenart]

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.ten...@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 2b2a6dce1630..f278da0f03cd 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -84,6 +84,8 @@ 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
@@ -153,6 +155,7 @@ 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)
 
 #define for_each_netdev_feature(mask_addr, bit)        \
        for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT)
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 158264f7cfaf..c43f281db758 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -113,6 +113,7 @@ 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
-- 
2.20.1