net: Add TLS RX offload feature

This patch adds a netdev feature to configure TLS RX inline crypto offload.

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

diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 623bb8c..2b2a6dc 100644 (file)
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -79,6 +79,7 @@ enum {
        NETIF_F_HW_ESP_TX_CSUM_BIT,     /* ESP with TX checksum offload */
        NETIF_F_RX_UDP_TUNNEL_PORT_BIT, /* Offload of RX port for UDP tunnels */
        NETIF_F_HW_TLS_TX_BIT,          /* Hardware TLS TX offload */
+       NETIF_F_HW_TLS_RX_BIT,          /* Hardware TLS RX offload */
 
        NETIF_F_GRO_HW_BIT,             /* Hardware Generic receive offload */
        NETIF_F_HW_TLS_RECORD_BIT,      /* Offload TLS record */
@@ -151,6 +152,7 @@ enum {
 #define NETIF_F_HW_TLS_RECORD  __NETIF_F(HW_TLS_RECORD)
 #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 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 e677a20..c9993c6 100644 (file)
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -111,6 +111,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
        [NETIF_F_RX_UDP_TUNNEL_PORT_BIT] =       "rx-udp_tunnel-port-offload",
        [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",
 };
 
 static const char