netdev - [PATCH V6 net-next 04/15] net: Add TLS offload netdev ops

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Message-Id: <1524410397-108425-5-git-send-email-borisp@mellanox.com>
Date:   Sun, 22 Apr 2018 18:19:46 +0300
From:   Boris Pismenny <borisp@...lanox.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, saeedm@...lanox.com, borisp@...lanox.com,
        davejwatson@...com, ktkhai@...tuozzo.com,
        Ilya Lesokhin <ilyal@...lanox.com>,
        Aviad Yehezkel <aviadye@...lanox.com>
Subject: [PATCH V6 net-next 04/15] net: Add TLS offload netdev ops

From: Ilya Lesokhin <ilyal@...lanox.com>

Add new netdev ops to add and delete tls context

Signed-off-by: Ilya Lesokhin <ilyal@...lanox.com>
Signed-off-by: Boris Pismenny <borisp@...lanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@...lanox.com>
---
 include/linux/netdevice.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 14e0777..949a12ea 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -865,6 +865,26 @@ struct xfrmdev_ops {
 };
 #endif
 
+#if IS_ENABLED(CONFIG_TLS_DEVICE)
+enum tls_offload_ctx_dir {
+	TLS_OFFLOAD_CTX_DIR_RX,
+	TLS_OFFLOAD_CTX_DIR_TX,
+};
+
+struct tls_crypto_info;
+struct tls_context;
+
+struct tlsdev_ops {
+	int (*tls_dev_add)(struct net_device *netdev, struct sock *sk,
+			   enum tls_offload_ctx_dir direction,
+			   struct tls_crypto_info *crypto_info,
+			   u32 start_offload_tcp_sn);
+	void (*tls_dev_del)(struct net_device *netdev,
+			    struct tls_context *ctx,
+			    enum tls_offload_ctx_dir direction);
+};
+#endif
+
 struct dev_ifalias {
 	struct rcu_head rcuhead;
 	char ifalias[];
@@ -1750,6 +1770,10 @@ struct net_device {
 	const struct xfrmdev_ops *xfrmdev_ops;
 #endif
 
+#if IS_ENABLED(CONFIG_TLS_DEVICE)
+	const struct tlsdev_ops *tlsdev_ops;
+#endif
+
 	const struct header_ops *header_ops;
 
 	unsigned int		flags;
-- 
1.8.3.1