netdev - [RFC 02/18] net: add a reference to MACsec ops in net

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Date:   Fri, 14 Feb 2020 18:02:42 +0300
From:   Igor Russkikh <irusskikh@...vell.com>
To:     <netdev@...r.kernel.org>
CC:     "David S . Miller" <davem@...emloft.net>,
        Antoine Tenart <antoine.tenart@...tlin.com>,
        Mark Starovoytov <mstarovoitov@...vell.com>,
        Dmitry Bogdanov <dbogdanov@...vell.com>,
        Igor Russkikh <irusskikh@...vell.com>
Subject: [RFC 02/18] net: add a reference to MACsec ops in net_device

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

This patch adds a reference to MACsec ops to the net_device structure,
allowing net device drivers to implement offloading operations for
MACsec.

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/netdevice.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a9c6b5c61d27..01b90c290779 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -53,6 +53,8 @@ struct netpoll_info;
 struct device;
 struct phy_device;
 struct dsa_port;
+struct macsec_context;
+struct macsec_ops;
 
 struct sfp_bus;
 /* 802.11 specific */
@@ -1802,6 +1804,8 @@ enum netdev_priv_flags {
  *				that follow this device when it is moved
  *				to another network namespace.
  *
+ *	@macsec_ops:    MACsec offloading ops
+ *
  *	FIXME: cleanup struct net_device such that network protocol info
  *	moves out.
  */
@@ -2096,6 +2100,11 @@ struct net_device {
 	unsigned		wol_enabled:1;
 
 	struct list_head	net_notifier_list;
+
+#if IS_ENABLED(CONFIG_MACSEC)
+	/* MACsec management functions */
+	const struct macsec_ops *macsec_ops;
+#endif
 };
 #define to_net_dev(d) container_of(d, struct net_device, dev)
 
-- 
2.17.1