[PATCH v3 next-queue 10/10] ixgbe: register ipsec offload with the xfrm subsystem
flat view
STALE3226d
From: Shannon Nelson <hidden>
Date: 2017-12-20 00:04:21
Also in:
intel-wired-lan
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v3 of 3 in this series.
Revisions (3)
- v1 [diff vs current]
- v2 [diff vs current]
- v3 current
With all the support code in place we can now link in the ipsec
offload operations and set the ESP feature flag for the XFRM
subsystem to see.
v3: added ifdef CONFIG_XFRM_OFFLOAD in ixgbe_features_check
v2: added the xdo_dev_state_free callback to make XFRM happy
changed use of NETIF_F_HW_CSUM_BIT to NETIF_F_HW_CSUM
Signed-off-by: Shannon Nelson <redacted>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c | 17 +++++++++++++++++
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 6 ++++++
2 files changed, 23 insertions(+)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c
index 4b16466..424dbf7 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c@@ -715,10 +715,23 @@ static bool ixgbe_ipsec_offload_ok(struct sk_buff *skb, struct xfrm_state *xs) return true; } +/** + * ixgbe_ipsec_free - called by xfrm garbage collections + * @xs: pointer to transformer state struct + * + * We don't have any garbage to collect, so we shouldn't bother + * implementing this function, but the XFRM code doesn't check for + * existence before calling the API callback. + **/ +static void ixgbe_ipsec_free(struct xfrm_state *xs) +{ +} + static const struct xfrmdev_ops ixgbe_xfrmdev_ops = { .xdo_dev_state_add = ixgbe_ipsec_add_sa, .xdo_dev_state_delete = ixgbe_ipsec_del_sa, .xdo_dev_offload_ok = ixgbe_ipsec_offload_ok, + .xdo_dev_state_free = ixgbe_ipsec_free, }; /**
@@ -877,6 +890,10 @@ void ixgbe_init_ipsec_offload(struct ixgbe_adapter *adapter) ixgbe_ipsec_stop_engine(adapter); ixgbe_ipsec_clear_hw_tables(adapter); + adapter->netdev->xfrmdev_ops = &ixgbe_xfrmdev_ops; + adapter->netdev->features |= NETIF_F_HW_ESP; + adapter->netdev->hw_enc_features |= NETIF_F_HW_ESP; + return; err2:
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 8c88d32..2f56309 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c@@ -9798,6 +9798,12 @@ ixgbe_features_check(struct sk_buff *skb, struct net_device *dev, if (skb->encapsulation && !(features & NETIF_F_TSO_MANGLEID)) features &= ~NETIF_F_TSO; +#ifdef CONFIG_XFRM_OFFLOAD + /* IPsec offload doesn't get along well with others *yet* */ + if (skb->sp) + features &= ~(NETIF_F_TSO | NETIF_F_HW_CSUM); +#endif + return features; }
--
2.7.4