From: Jarod Wilson <jarod@redhat.com>
Date: Fri, 19 Jun 2020 10:31:53 -0400
Subject: ixgbe_ipsec: become aware of when running as a bonding slave
Patch-mainline: v5.9-rc1
Git-commit: 0dea9ea97e4615f7ed2cc129d4caaa6c8102d349
References: jsc#SLE-13706

Slave devices in a bond doing hardware encryption also need to be aware
that they're slaves, so we operate on the slave instead of the bonding
master to do the actual hardware encryption offload bits.

CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: "David S. Miller" <davem@davemloft.net>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Jakub Kicinski <kuba@kernel.org>
CC: Steffen Klassert <steffen.klassert@secunet.com>
CC: Herbert Xu <herbert@gondor.apana.org.au>
CC: netdev@vger.kernel.org
CC: intel-wired-lan@lists.osuosl.org
Acked-by: Jeff Kirsher <Jeffrey.t.kirsher@intel.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c |   39 +++++++++++++++++++------
 1 file changed, 31 insertions(+), 8 deletions(-)

--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c
@@ -432,6 +432,9 @@ static int ixgbe_ipsec_parse_proto_keys(
 	char *alg_name = NULL;
 	int key_len;
 
+	if (xs->xso.slave_dev)
+		dev = xs->xso.slave_dev;
+
 	if (!xs->aead) {
 		netdev_err(dev, "Unsupported IPsec algorithm\n");
 		return -EINVAL;
@@ -478,8 +481,8 @@ static int ixgbe_ipsec_parse_proto_keys(
 static int ixgbe_ipsec_check_mgmt_ip(struct xfrm_state *xs)
 {
 	struct net_device *dev = xs->xso.dev;
-	struct ixgbe_adapter *adapter = netdev_priv(dev);
-	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_adapter *adapter;
+	struct ixgbe_hw *hw;
 	u32 mfval, manc, reg;
 	int num_filters = 4;
 	bool manc_ipv4;
@@ -497,6 +500,12 @@ static int ixgbe_ipsec_check_mgmt_ip(str
 #define BMCIP_V6                 0x3
 #define BMCIP_MASK               0x3
 
+	if (xs->xso.slave_dev)
+		dev = xs->xso.slave_dev;
+
+	adapter = netdev_priv(dev);
+	hw = &adapter->hw;
+
 	manc = IXGBE_READ_REG(hw, IXGBE_MANC);
 	manc_ipv4 = !!(manc & MANC_EN_IPV4_FILTER);
 	mfval = IXGBE_READ_REG(hw, IXGBE_MFVAL);
@@ -561,14 +570,21 @@ static int ixgbe_ipsec_check_mgmt_ip(str
 static int ixgbe_ipsec_add_sa(struct xfrm_state *xs)
 {
 	struct net_device *dev = xs->xso.dev;
-	struct ixgbe_adapter *adapter = netdev_priv(dev);
-	struct ixgbe_ipsec *ipsec = adapter->ipsec;
-	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_adapter *adapter;
+	struct ixgbe_ipsec *ipsec;
+	struct ixgbe_hw *hw;
 	int checked, match, first;
 	u16 sa_idx;
 	int ret;
 	int i;
 
+	if (xs->xso.slave_dev)
+		dev = xs->xso.slave_dev;
+
+	adapter = netdev_priv(dev);
+	ipsec = adapter->ipsec;
+	hw = &adapter->hw;
+
 	if (xs->id.proto != IPPROTO_ESP && xs->id.proto != IPPROTO_AH) {
 		netdev_err(dev, "Unsupported protocol 0x%04x for ipsec offload\n",
 			   xs->id.proto);
@@ -746,12 +762,19 @@ static int ixgbe_ipsec_add_sa(struct xfr
 static void ixgbe_ipsec_del_sa(struct xfrm_state *xs)
 {
 	struct net_device *dev = xs->xso.dev;
-	struct ixgbe_adapter *adapter = netdev_priv(dev);
-	struct ixgbe_ipsec *ipsec = adapter->ipsec;
-	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_adapter *adapter;
+	struct ixgbe_ipsec *ipsec;
+	struct ixgbe_hw *hw;
 	u32 zerobuf[4] = {0, 0, 0, 0};
 	u16 sa_idx;
 
+	if (xs->xso.slave_dev)
+		dev = xs->xso.slave_dev;
+
+	adapter = netdev_priv(dev);
+	ipsec = adapter->ipsec;
+	hw = &adapter->hw;
+
 	if (xs->xso.flags & XFRM_OFFLOAD_INBOUND) {
 		struct rx_sa *rsa;
 		u8 ipi;