net: Add TLS offload netdev ops

Add new netdev ops to add and delete tls context

Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9e09dd897b749d957d8843f36920d1d99610cf06..a569bf5524fa42607cf744f1da73b24c1dc6a3f4 100644 (file)
--- 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;