From c7ef8f0c020ac43c8a692bf989017c06ab1fdf0f Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Fri, 14 Apr 2017 10:05:36 +0200 Subject: [PATCH] net: Add ESP offload features This patch adds netdev features to configure IPsec offloads. Signed-off-by: Steffen Klassert --- include/linux/netdev_features.h | 8 +++++++- include/linux/netdevice.h | 1 + include/linux/skbuff.h | 2 ++ net/core/ethtool.c | 3 +++ 4 files changed, 13 insertions(+), 1 deletion(-) diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index 9a0419594e84..1d4737cffc71 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -54,8 +54,9 @@ enum { */ NETIF_F_GSO_TUNNEL_REMCSUM_BIT, /* ... TUNNEL with TSO & REMCSUM */ NETIF_F_GSO_SCTP_BIT, /* ... SCTP fragmentation */ + NETIF_F_GSO_ESP_BIT, /* ... ESP with TSO */ /**/NETIF_F_GSO_LAST = /* last bit, see GSO_MASK */ - NETIF_F_GSO_SCTP_BIT, + NETIF_F_GSO_ESP_BIT, NETIF_F_FCOE_CRC_BIT, /* FCoE CRC32 */ NETIF_F_SCTP_CRC_BIT, /* SCTP checksum offload */ @@ -73,6 +74,8 @@ enum { NETIF_F_HW_L2FW_DOFFLOAD_BIT, /* Allow L2 Forwarding in Hardware */ NETIF_F_HW_TC_BIT, /* Offload TC infrastructure */ + NETIF_F_HW_ESP_BIT, /* Hardware ESP transformation offload */ + NETIF_F_HW_ESP_TX_CSUM_BIT, /* ESP with TX checksum offload */ /* * Add your fresh new feature above and remember to update @@ -129,11 +132,14 @@ enum { #define NETIF_F_GSO_PARTIAL __NETIF_F(GSO_PARTIAL) #define NETIF_F_GSO_TUNNEL_REMCSUM __NETIF_F(GSO_TUNNEL_REMCSUM) #define NETIF_F_GSO_SCTP __NETIF_F(GSO_SCTP) +#define NETIF_F_GSO_ESP __NETIF_F(GSO_ESP) #define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER) #define NETIF_F_HW_VLAN_STAG_RX __NETIF_F(HW_VLAN_STAG_RX) #define NETIF_F_HW_VLAN_STAG_TX __NETIF_F(HW_VLAN_STAG_TX) #define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD) #define NETIF_F_HW_TC __NETIF_F(HW_TC) +#define NETIF_F_HW_ESP __NETIF_F(HW_ESP) +#define NETIF_F_HW_ESP_TX_CSUM __NETIF_F(HW_ESP_TX_CSUM) #define for_each_netdev_feature(mask_addr, bit) \ for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index cc07c3be2705..5bb03d181848 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -4070,6 +4070,7 @@ static inline bool net_gso_ok(netdev_features_t features, int gso_type) BUILD_BUG_ON(SKB_GSO_PARTIAL != (NETIF_F_GSO_PARTIAL >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_TUNNEL_REMCSUM != (NETIF_F_GSO_TUNNEL_REMCSUM >> NETIF_F_GSO_SHIFT)); BUILD_BUG_ON(SKB_GSO_SCTP != (NETIF_F_GSO_SCTP >> NETIF_F_GSO_SHIFT)); + BUILD_BUG_ON(SKB_GSO_ESP != (NETIF_F_GSO_ESP >> NETIF_F_GSO_SHIFT)); return (features & feature) == feature; } diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 741d75cfc686..81ef53f06534 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -492,6 +492,8 @@ enum { SKB_GSO_TUNNEL_REMCSUM = 1 << 14, SKB_GSO_SCTP = 1 << 15, + + SKB_GSO_ESP = 1 << 16, }; #if BITS_PER_LONG > 32 diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 905a88ad28e0..03111a2d6653 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -90,6 +90,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] [NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT] = "tx-udp_tnl-csum-segmentation", [NETIF_F_GSO_PARTIAL_BIT] = "tx-gso-partial", [NETIF_F_GSO_SCTP_BIT] = "tx-sctp-segmentation", + [NETIF_F_GSO_ESP_BIT] = "tx-esp-segmentation", [NETIF_F_FCOE_CRC_BIT] = "tx-checksum-fcoe-crc", [NETIF_F_SCTP_CRC_BIT] = "tx-checksum-sctp", @@ -103,6 +104,8 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] [NETIF_F_RXALL_BIT] = "rx-all", [NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload", [NETIF_F_HW_TC_BIT] = "hw-tc-offload", + [NETIF_F_HW_ESP_BIT] = "esp-hw-offload", + [NETIF_F_HW_ESP_TX_CSUM_BIT] = "esp-tx-csum-hw-offload", }; static const char