netdev - [PATCH v2 net-next 01/17] net: introduce the MACSEC netdev feature

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Message-ID: <20200325125246.987-2-irusskikh@marvell.com>
Date:   Wed, 25 Mar 2020 15:52:30 +0300
From:   Igor Russkikh <irusskikh@...vell.com>
To:     <netdev@...r.kernel.org>
CC:     Mark Starovoytov <mstarovoitov@...vell.com>,
        Sabrina Dubroca <sd@...asysnail.net>,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        "Igor Russkikh" <irusskikh@...vell.com>
Subject: [PATCH v2 net-next 01/17] net: introduce the MACSEC netdev feature

From: Antoine Tenart <antoine.tenart@...tlin.com>

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

The patchset was gathered by Mark, macsec functinality itself
was implemented by Dmitry, Mark and Pavel Belous.

Signed-off-by: Antoine Tenart <antoine.tenart@...tlin.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@...vell.com>
Signed-off-by: Igor Russkikh <irusskikh@...vell.com>
---
 include/linux/netdev_features.h | 3 +++
 net/ethtool/common.c            | 1 +
 2 files changed, 4 insertions(+)

diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 34d050bb1ae6..9d53c5ad272c 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -83,6 +83,8 @@ enum {
 	NETIF_F_HW_TLS_RECORD_BIT,	/* Offload TLS record */
 	NETIF_F_GRO_FRAGLIST_BIT,	/* Fraglist GRO */
 
+	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
@@ -154,6 +156,7 @@ enum {
 #define NETIF_F_HW_TLS_RX	__NETIF_F(HW_TLS_RX)
 #define NETIF_F_GRO_FRAGLIST	__NETIF_F(GRO_FRAGLIST)
 #define NETIF_F_GSO_FRAGLIST	__NETIF_F(GSO_FRAGLIST)
+#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/ethtool/common.c b/net/ethtool/common.c
index dab047eec943..51a0941fc62f 100644
--- a/net/ethtool/common.c
+++ b/net/ethtool/common.c
@@ -60,6 +60,7 @@ const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
 	[NETIF_F_HW_TLS_TX_BIT] =	 "tls-hw-tx-offload",
 	[NETIF_F_HW_TLS_RX_BIT] =	 "tls-hw-rx-offload",
 	[NETIF_F_GRO_FRAGLIST_BIT] =	 "rx-gro-list",
+	[NETIF_F_HW_MACSEC_BIT] =	 "macsec-hw-offload",
 };
 
 const char
-- 
2.17.1