1 files changed, 350 insertions, 108 deletions

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c
index a8525992528f..7ea798a4949e 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c
@@ -8,7 +8,7 @@
 #include "spectrum_ipip.h"
 #include "reg.h"
 
-struct ip_tunnel_parm
+struct ip_tunnel_parm_kern
 mlxsw_sp_ipip_netdev_parms4(const struct net_device *ol_dev)
 {
 	struct ip_tunnel *tun = netdev_priv(ol_dev);
@@ -24,66 +24,90 @@ mlxsw_sp_ipip_netdev_parms6(const struct net_device *ol_dev)
 	return tun->parms;
 }
 
-static bool mlxsw_sp_ipip_parms4_has_ikey(struct ip_tunnel_parm parms)
+static bool
+mlxsw_sp_ipip_parms4_has_ikey(const struct ip_tunnel_parm_kern *parms)
 {
-	return !!(parms.i_flags & TUNNEL_KEY);
+	return test_bit(IP_TUNNEL_KEY_BIT, parms->i_flags);
 }
 
-static bool mlxsw_sp_ipip_parms4_has_okey(struct ip_tunnel_parm parms)
+static bool mlxsw_sp_ipip_parms6_has_ikey(const struct __ip6_tnl_parm *parms)
 {
-	return !!(parms.o_flags & TUNNEL_KEY);
+	return test_bit(IP_TUNNEL_KEY_BIT, parms->i_flags);
 }
 
-static u32 mlxsw_sp_ipip_parms4_ikey(struct ip_tunnel_parm parms)
+static bool
+mlxsw_sp_ipip_parms4_has_okey(const struct ip_tunnel_parm_kern *parms)
+{
+	return test_bit(IP_TUNNEL_KEY_BIT, parms->o_flags);
+}
+
+static bool mlxsw_sp_ipip_parms6_has_okey(const struct __ip6_tnl_parm *parms)
+{
+	return test_bit(IP_TUNNEL_KEY_BIT, parms->o_flags);
+}
+
+static u32 mlxsw_sp_ipip_parms4_ikey(const struct ip_tunnel_parm_kern *parms)
 {
 	return mlxsw_sp_ipip_parms4_has_ikey(parms) ?
-		be32_to_cpu(parms.i_key) : 0;
+		be32_to_cpu(parms->i_key) : 0;
 }
 
-static u32 mlxsw_sp_ipip_parms4_okey(struct ip_tunnel_parm parms)
+static u32 mlxsw_sp_ipip_parms6_ikey(const struct __ip6_tnl_parm *parms)
+{
+	return mlxsw_sp_ipip_parms6_has_ikey(parms) ?
+		be32_to_cpu(parms->i_key) : 0;
+}
+
+static u32 mlxsw_sp_ipip_parms4_okey(const struct ip_tunnel_parm_kern *parms)
 {
 	return mlxsw_sp_ipip_parms4_has_okey(parms) ?
-		be32_to_cpu(parms.o_key) : 0;
+		be32_to_cpu(parms->o_key) : 0;
+}
+
+static u32 mlxsw_sp_ipip_parms6_okey(const struct __ip6_tnl_parm *parms)
+{
+	return mlxsw_sp_ipip_parms6_has_okey(parms) ?
+		be32_to_cpu(parms->o_key) : 0;
 }
 
 static union mlxsw_sp_l3addr
-mlxsw_sp_ipip_parms4_saddr(struct ip_tunnel_parm parms)
+mlxsw_sp_ipip_parms4_saddr(const struct ip_tunnel_parm_kern *parms)
 {
-	return (union mlxsw_sp_l3addr) { .addr4 = parms.iph.saddr };
+	return (union mlxsw_sp_l3addr) { .addr4 = parms->iph.saddr };
 }
 
 static union mlxsw_sp_l3addr
-mlxsw_sp_ipip_parms6_saddr(struct __ip6_tnl_parm parms)
+mlxsw_sp_ipip_parms6_saddr(const struct __ip6_tnl_parm *parms)
 {
-	return (union mlxsw_sp_l3addr) { .addr6 = parms.laddr };
+	return (union mlxsw_sp_l3addr) { .addr6 = parms->laddr };
 }
 
 static union mlxsw_sp_l3addr
-mlxsw_sp_ipip_parms4_daddr(struct ip_tunnel_parm parms)
+mlxsw_sp_ipip_parms4_daddr(const struct ip_tunnel_parm_kern *parms)
 {
-	return (union mlxsw_sp_l3addr) { .addr4 = parms.iph.daddr };
+	return (union mlxsw_sp_l3addr) { .addr4 = parms->iph.daddr };
 }
 
 static union mlxsw_sp_l3addr
-mlxsw_sp_ipip_parms6_daddr(struct __ip6_tnl_parm parms)
+mlxsw_sp_ipip_parms6_daddr(const struct __ip6_tnl_parm *parms)
 {
-	return (union mlxsw_sp_l3addr) { .addr6 = parms.raddr };
+	return (union mlxsw_sp_l3addr) { .addr6 = parms->raddr };
 }
 
 union mlxsw_sp_l3addr
 mlxsw_sp_ipip_netdev_saddr(enum mlxsw_sp_l3proto proto,
 			   const struct net_device *ol_dev)
 {
-	struct ip_tunnel_parm parms4;
+	struct ip_tunnel_parm_kern parms4;
 	struct __ip6_tnl_parm parms6;
 
 	switch (proto) {
 	case MLXSW_SP_L3_PROTO_IPV4:
 		parms4 = mlxsw_sp_ipip_netdev_parms4(ol_dev);
-		return mlxsw_sp_ipip_parms4_saddr(parms4);
+		return mlxsw_sp_ipip_parms4_saddr(&parms4);
 	case MLXSW_SP_L3_PROTO_IPV6:
 		parms6 = mlxsw_sp_ipip_netdev_parms6(ol_dev);
-		return mlxsw_sp_ipip_parms6_saddr(parms6);
+		return mlxsw_sp_ipip_parms6_saddr(&parms6);
 	}
 
 	WARN_ON(1);
@@ -93,25 +117,27 @@ mlxsw_sp_ipip_netdev_saddr(enum mlxsw_sp_l3proto proto,
 static __be32 mlxsw_sp_ipip_netdev_daddr4(const struct net_device *ol_dev)
 {
 
-	struct ip_tunnel_parm parms4 = mlxsw_sp_ipip_netdev_parms4(ol_dev);
+	struct ip_tunnel_parm_kern parms4;
+
+	parms4 = mlxsw_sp_ipip_netdev_parms4(ol_dev);
 
-	return mlxsw_sp_ipip_parms4_daddr(parms4).addr4;
+	return mlxsw_sp_ipip_parms4_daddr(&parms4).addr4;
 }
 
 static union mlxsw_sp_l3addr
 mlxsw_sp_ipip_netdev_daddr(enum mlxsw_sp_l3proto proto,
 			   const struct net_device *ol_dev)
 {
-	struct ip_tunnel_parm parms4;
+	struct ip_tunnel_parm_kern parms4;
 	struct __ip6_tnl_parm parms6;
 
 	switch (proto) {
 	case MLXSW_SP_L3_PROTO_IPV4:
 		parms4 = mlxsw_sp_ipip_netdev_parms4(ol_dev);
-		return mlxsw_sp_ipip_parms4_daddr(parms4);
+		return mlxsw_sp_ipip_parms4_daddr(&parms4);
 	case MLXSW_SP_L3_PROTO_IPV6:
 		parms6 = mlxsw_sp_ipip_netdev_parms6(ol_dev);
-		return mlxsw_sp_ipip_parms6_daddr(parms6);
+		return mlxsw_sp_ipip_parms6_daddr(&parms6);
 	}
 
 	WARN_ON(1);
@@ -125,16 +151,33 @@ bool mlxsw_sp_l3addr_is_zero(union mlxsw_sp_l3addr addr)
 	return !memcmp(&addr, &naddr, sizeof(naddr));
 }
 
+static struct mlxsw_sp_ipip_parms
+mlxsw_sp_ipip_netdev_parms_init_gre4(const struct net_device *ol_dev)
+{
+	struct ip_tunnel_parm_kern parms = mlxsw_sp_ipip_netdev_parms4(ol_dev);
+
+	return (struct mlxsw_sp_ipip_parms) {
+		.proto = MLXSW_SP_L3_PROTO_IPV4,
+		.saddr = mlxsw_sp_ipip_parms4_saddr(&parms),
+		.daddr = mlxsw_sp_ipip_parms4_daddr(&parms),
+		.link = parms.link,
+		.ikey = mlxsw_sp_ipip_parms4_ikey(&parms),
+		.okey = mlxsw_sp_ipip_parms4_okey(&parms),
+	};
+}
+
 static int
 mlxsw_sp_ipip_nexthop_update_gre4(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
-				  struct mlxsw_sp_ipip_entry *ipip_entry)
+				  struct mlxsw_sp_ipip_entry *ipip_entry,
+				  bool force, char *ratr_pl)
 {
 	u16 rif_index = mlxsw_sp_ipip_lb_rif_index(ipip_entry->ol_lb);
 	__be32 daddr4 = mlxsw_sp_ipip_netdev_daddr4(ipip_entry->ol_dev);
-	char ratr_pl[MLXSW_REG_RATR_LEN];
+	enum mlxsw_reg_ratr_op op;
 
-	mlxsw_reg_ratr_pack(ratr_pl, MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY,
-			    true, MLXSW_REG_RATR_TYPE_IPIP,
+	op = force ? MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY :
+		     MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY_ON_ACTIVITY;
+	mlxsw_reg_ratr_pack(ratr_pl, op, true, MLXSW_REG_RATR_TYPE_IPIP,
 			    adj_index, rif_index);
 	mlxsw_reg_ratr_ipip4_entry_pack(ratr_pl, be32_to_cpu(daddr4));
 
@@ -142,22 +185,22 @@ mlxsw_sp_ipip_nexthop_update_gre4(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
 }
 
 static int
-mlxsw_sp_ipip_fib_entry_op_gre4_rtdp(struct mlxsw_sp *mlxsw_sp,
-				     u32 tunnel_index,
-				     struct mlxsw_sp_ipip_entry *ipip_entry)
+mlxsw_sp_ipip_decap_config_gre4(struct mlxsw_sp *mlxsw_sp,
+				struct mlxsw_sp_ipip_entry *ipip_entry,
+				u32 tunnel_index)
 {
 	u16 rif_index = mlxsw_sp_ipip_lb_rif_index(ipip_entry->ol_lb);
 	u16 ul_rif_id = mlxsw_sp_ipip_lb_ul_rif_id(ipip_entry->ol_lb);
+	struct ip_tunnel_parm_kern parms;
 	char rtdp_pl[MLXSW_REG_RTDP_LEN];
-	struct ip_tunnel_parm parms;
 	unsigned int type_check;
 	bool has_ikey;
 	u32 daddr4;
 	u32 ikey;
 
 	parms = mlxsw_sp_ipip_netdev_parms4(ipip_entry->ol_dev);
-	has_ikey = mlxsw_sp_ipip_parms4_has_ikey(parms);
-	ikey = mlxsw_sp_ipip_parms4_ikey(parms);
+	has_ikey = mlxsw_sp_ipip_parms4_has_ikey(&parms);
+	ikey = mlxsw_sp_ipip_parms4_ikey(&parms);
 
 	mlxsw_reg_rtdp_pack(rtdp_pl, MLXSW_REG_RTDP_TYPE_IPIP, tunnel_index);
 	mlxsw_reg_rtdp_egress_router_interface_set(rtdp_pl, ul_rif_id);
@@ -180,41 +223,6 @@ mlxsw_sp_ipip_fib_entry_op_gre4_rtdp(struct mlxsw_sp *mlxsw_sp,
 	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rtdp), rtdp_pl);
 }
 
-static int
-mlxsw_sp_ipip_fib_entry_op_gre4_ralue(struct mlxsw_sp *mlxsw_sp,
-				      u32 dip, u8 prefix_len, u16 ul_vr_id,
-				      enum mlxsw_reg_ralue_op op,
-				      u32 tunnel_index)
-{
-	char ralue_pl[MLXSW_REG_RALUE_LEN];
-
-	mlxsw_reg_ralue_pack4(ralue_pl, MLXSW_REG_RALXX_PROTOCOL_IPV4, op,
-			      ul_vr_id, prefix_len, dip);
-	mlxsw_reg_ralue_act_ip2me_tun_pack(ralue_pl, tunnel_index);
-	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralue), ralue_pl);
-}
-
-static int mlxsw_sp_ipip_fib_entry_op_gre4(struct mlxsw_sp *mlxsw_sp,
-					struct mlxsw_sp_ipip_entry *ipip_entry,
-					enum mlxsw_reg_ralue_op op,
-					u32 tunnel_index)
-{
-	u16 ul_vr_id = mlxsw_sp_ipip_lb_ul_vr_id(ipip_entry->ol_lb);
-	__be32 dip;
-	int err;
-
-	err = mlxsw_sp_ipip_fib_entry_op_gre4_rtdp(mlxsw_sp, tunnel_index,
-						   ipip_entry);
-	if (err)
-		return err;
-
-	dip = mlxsw_sp_ipip_netdev_saddr(MLXSW_SP_L3_PROTO_IPV4,
-					 ipip_entry->ol_dev).addr4;
-	return mlxsw_sp_ipip_fib_entry_op_gre4_ralue(mlxsw_sp, be32_to_cpu(dip),
-						     32, ul_vr_id, op,
-						     tunnel_index);
-}
-
 static bool mlxsw_sp_ipip_tunnel_complete(enum mlxsw_sp_l3proto proto,
 					  const struct net_device *ol_dev)
 {
@@ -231,16 +239,18 @@ static bool mlxsw_sp_ipip_tunnel_complete(enum mlxsw_sp_l3proto proto,
 }
 
 static bool mlxsw_sp_ipip_can_offload_gre4(const struct mlxsw_sp *mlxsw_sp,
-					   const struct net_device *ol_dev,
-					   enum mlxsw_sp_l3proto ol_proto)
+					   const struct net_device *ol_dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(ol_dev);
-	__be16 okflags = TUNNEL_KEY; /* We can't offload any other features. */
 	bool inherit_ttl = tunnel->parms.iph.ttl == 0;
 	bool inherit_tos = tunnel->parms.iph.tos & 0x1;
+	IP_TUNNEL_DECLARE_FLAGS(okflags) = { };
+
+	/* We can't offload any other features. */
+	__set_bit(IP_TUNNEL_KEY_BIT, okflags);
 
-	return (tunnel->parms.i_flags & ~okflags) == 0 &&
-	       (tunnel->parms.o_flags & ~okflags) == 0 &&
+	return ip_tunnel_flags_subset(tunnel->parms.i_flags, okflags) &&
+	       ip_tunnel_flags_subset(tunnel->parms.o_flags, okflags) &&
 	       inherit_ttl && inherit_tos &&
 	       mlxsw_sp_ipip_tunnel_complete(MLXSW_SP_L3_PROTO_IPV4, ol_dev);
 }
@@ -249,15 +259,15 @@ static struct mlxsw_sp_rif_ipip_lb_config
 mlxsw_sp_ipip_ol_loopback_config_gre4(struct mlxsw_sp *mlxsw_sp,
 				      const struct net_device *ol_dev)
 {
-	struct ip_tunnel_parm parms = mlxsw_sp_ipip_netdev_parms4(ol_dev);
+	struct ip_tunnel_parm_kern parms = mlxsw_sp_ipip_netdev_parms4(ol_dev);
 	enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;
 
-	lb_ipipt = mlxsw_sp_ipip_parms4_has_okey(parms) ?
+	lb_ipipt = mlxsw_sp_ipip_parms4_has_okey(&parms) ?
 		MLXSW_REG_RITR_LOOPBACK_IPIP_TYPE_IP_IN_GRE_KEY_IN_IP :
 		MLXSW_REG_RITR_LOOPBACK_IPIP_TYPE_IP_IN_GRE_IN_IP;
 	return (struct mlxsw_sp_rif_ipip_lb_config){
 		.lb_ipipt = lb_ipipt,
-		.okey = mlxsw_sp_ipip_parms4_okey(parms),
+		.okey = mlxsw_sp_ipip_parms4_okey(&parms),
 		.ul_protocol = MLXSW_SP_L3_PROTO_IPV4,
 		.saddr = mlxsw_sp_ipip_netdev_saddr(MLXSW_SP_L3_PROTO_IPV4,
 						    ol_dev),
@@ -265,48 +275,39 @@ mlxsw_sp_ipip_ol_loopback_config_gre4(struct mlxsw_sp *mlxsw_sp,
 }
 
 static int
-mlxsw_sp_ipip_ol_netdev_change_gre4(struct mlxsw_sp *mlxsw_sp,
-				    struct mlxsw_sp_ipip_entry *ipip_entry,
-				    struct netlink_ext_ack *extack)
+mlxsw_sp_ipip_ol_netdev_change_gre(struct mlxsw_sp *mlxsw_sp,
+				   struct mlxsw_sp_ipip_entry *ipip_entry,
+				   const struct mlxsw_sp_ipip_parms *new_parms,
+				   struct netlink_ext_ack *extack)
 {
-	union mlxsw_sp_l3addr old_saddr, new_saddr;
-	union mlxsw_sp_l3addr old_daddr, new_daddr;
-	struct ip_tunnel_parm new_parms;
+	const struct mlxsw_sp_ipip_parms *old_parms = &ipip_entry->parms;
 	bool update_tunnel = false;
 	bool update_decap = false;
 	bool update_nhs = false;
 	int err = 0;
 
-	new_parms = mlxsw_sp_ipip_netdev_parms4(ipip_entry->ol_dev);
-
-	new_saddr = mlxsw_sp_ipip_parms4_saddr(new_parms);
-	old_saddr = mlxsw_sp_ipip_parms4_saddr(ipip_entry->parms4);
-	new_daddr = mlxsw_sp_ipip_parms4_daddr(new_parms);
-	old_daddr = mlxsw_sp_ipip_parms4_daddr(ipip_entry->parms4);
-
-	if (!mlxsw_sp_l3addr_eq(&new_saddr, &old_saddr)) {
+	if (!mlxsw_sp_l3addr_eq(&new_parms->saddr, &old_parms->saddr)) {
 		u16 ul_tb_id = mlxsw_sp_ipip_dev_ul_tb_id(ipip_entry->ol_dev);
 
 		/* Since the local address has changed, if there is another
 		 * tunnel with a matching saddr, both need to be demoted.
 		 */
 		if (mlxsw_sp_ipip_demote_tunnel_by_saddr(mlxsw_sp,
-							 MLXSW_SP_L3_PROTO_IPV4,
-							 new_saddr, ul_tb_id,
+							 new_parms->proto,
+							 new_parms->saddr,
+							 ul_tb_id,
 							 ipip_entry)) {
 			mlxsw_sp_ipip_entry_demote_tunnel(mlxsw_sp, ipip_entry);
 			return 0;
 		}
 
 		update_tunnel = true;
-	} else if ((mlxsw_sp_ipip_parms4_okey(ipip_entry->parms4) !=
-		    mlxsw_sp_ipip_parms4_okey(new_parms)) ||
-		   ipip_entry->parms4.link != new_parms.link) {
+	} else if (old_parms->okey != new_parms->okey ||
+		   old_parms->link != new_parms->link) {
 		update_tunnel = true;
-	} else if (!mlxsw_sp_l3addr_eq(&new_daddr, &old_daddr)) {
+	} else if (!mlxsw_sp_l3addr_eq(&new_parms->daddr, &old_parms->daddr)) {
 		update_nhs = true;
-	} else if (mlxsw_sp_ipip_parms4_ikey(ipip_entry->parms4) !=
-		   mlxsw_sp_ipip_parms4_ikey(new_parms)) {
+	} else if (old_parms->ikey != new_parms->ikey) {
 		update_decap = true;
 	}
 
@@ -322,23 +323,246 @@ mlxsw_sp_ipip_ol_netdev_change_gre4(struct mlxsw_sp *mlxsw_sp,
 		err = __mlxsw_sp_ipip_entry_update_tunnel(mlxsw_sp, ipip_entry,
 							  false, false, false,
 							  extack);
+	if (err)
+		return err;
 
-	ipip_entry->parms4 = new_parms;
-	return err;
+	ipip_entry->parms = *new_parms;
+	return 0;
+}
+
+static int
+mlxsw_sp_ipip_ol_netdev_change_gre4(struct mlxsw_sp *mlxsw_sp,
+				    struct mlxsw_sp_ipip_entry *ipip_entry,
+				    struct netlink_ext_ack *extack)
+{
+	struct mlxsw_sp_ipip_parms new_parms;
+
+	new_parms = mlxsw_sp_ipip_netdev_parms_init_gre4(ipip_entry->ol_dev);
+	return mlxsw_sp_ipip_ol_netdev_change_gre(mlxsw_sp, ipip_entry,
+						  &new_parms, extack);
+}
+
+static int
+mlxsw_sp_ipip_rem_addr_set_gre4(struct mlxsw_sp *mlxsw_sp,
+				struct mlxsw_sp_ipip_entry *ipip_entry)
+{
+	return 0;
+}
+
+static void
+mlxsw_sp_ipip_rem_addr_unset_gre4(struct mlxsw_sp *mlxsw_sp,
+				  const struct mlxsw_sp_ipip_entry *ipip_entry)
+{
 }
 
 static const struct mlxsw_sp_ipip_ops mlxsw_sp_ipip_gre4_ops = {
 	.dev_type = ARPHRD_IPGRE,
 	.ul_proto = MLXSW_SP_L3_PROTO_IPV4,
+	.inc_parsing_depth = false,
+	.parms_init = mlxsw_sp_ipip_netdev_parms_init_gre4,
 	.nexthop_update = mlxsw_sp_ipip_nexthop_update_gre4,
-	.fib_entry_op = mlxsw_sp_ipip_fib_entry_op_gre4,
+	.decap_config = mlxsw_sp_ipip_decap_config_gre4,
 	.can_offload = mlxsw_sp_ipip_can_offload_gre4,
 	.ol_loopback_config = mlxsw_sp_ipip_ol_loopback_config_gre4,
 	.ol_netdev_change = mlxsw_sp_ipip_ol_netdev_change_gre4,
+	.rem_ip_addr_set = mlxsw_sp_ipip_rem_addr_set_gre4,
+	.rem_ip_addr_unset = mlxsw_sp_ipip_rem_addr_unset_gre4,
 };
 
-const struct mlxsw_sp_ipip_ops *mlxsw_sp_ipip_ops_arr[] = {
+static struct mlxsw_sp_ipip_parms
+mlxsw_sp_ipip_netdev_parms_init_gre6(const struct net_device *ol_dev)
+{
+	struct __ip6_tnl_parm parms = mlxsw_sp_ipip_netdev_parms6(ol_dev);
+
+	return (struct mlxsw_sp_ipip_parms) {
+		.proto = MLXSW_SP_L3_PROTO_IPV6,
+		.saddr = mlxsw_sp_ipip_parms6_saddr(&parms),
+		.daddr = mlxsw_sp_ipip_parms6_daddr(&parms),
+		.link = parms.link,
+		.ikey = mlxsw_sp_ipip_parms6_ikey(&parms),
+		.okey = mlxsw_sp_ipip_parms6_okey(&parms),
+	};
+}
+
+static int
+mlxsw_sp_ipip_nexthop_update_gre6(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
+				  struct mlxsw_sp_ipip_entry *ipip_entry,
+				  bool force, char *ratr_pl)
+{
+	u16 rif_index = mlxsw_sp_ipip_lb_rif_index(ipip_entry->ol_lb);
+	enum mlxsw_reg_ratr_op op;
+
+	op = force ? MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY :
+		     MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY_ON_ACTIVITY;
+	mlxsw_reg_ratr_pack(ratr_pl, op, true, MLXSW_REG_RATR_TYPE_IPIP,
+			    adj_index, rif_index);
+	mlxsw_reg_ratr_ipip6_entry_pack(ratr_pl,
+					ipip_entry->dip_kvdl_index);
+
+	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ratr), ratr_pl);
+}
+
+static int
+mlxsw_sp_ipip_decap_config_gre6(struct mlxsw_sp *mlxsw_sp,
+				struct mlxsw_sp_ipip_entry *ipip_entry,
+				u32 tunnel_index)
+{
+	u16 rif_index = mlxsw_sp_ipip_lb_rif_index(ipip_entry->ol_lb);
+	u16 ul_rif_id = mlxsw_sp_ipip_lb_ul_rif_id(ipip_entry->ol_lb);
+	char rtdp_pl[MLXSW_REG_RTDP_LEN];
+	struct __ip6_tnl_parm parms;
+	unsigned int type_check;
+	bool has_ikey;
+	u32 ikey;
+
+	parms = mlxsw_sp_ipip_netdev_parms6(ipip_entry->ol_dev);
+	has_ikey = mlxsw_sp_ipip_parms6_has_ikey(&parms);
+	ikey = mlxsw_sp_ipip_parms6_ikey(&parms);
+
+	mlxsw_reg_rtdp_pack(rtdp_pl, MLXSW_REG_RTDP_TYPE_IPIP, tunnel_index);
+	mlxsw_reg_rtdp_egress_router_interface_set(rtdp_pl, ul_rif_id);
+
+	type_check = has_ikey ?
+		MLXSW_REG_RTDP_IPIP_TYPE_CHECK_ALLOW_GRE_KEY :
+		MLXSW_REG_RTDP_IPIP_TYPE_CHECK_ALLOW_GRE;
+
+	/* Linux demuxes tunnels based on packet SIP (which must match tunnel
+	 * remote IP). Thus configure decap so that it filters out packets that
+	 * are not IPv6 or have the wrong SIP. IPIP_DECAP_ERROR trap is
+	 * generated for packets that fail this criterion. Linux then handles
+	 * such packets in slow path and generates ICMP destination unreachable.
+	 */
+	mlxsw_reg_rtdp_ipip6_pack(rtdp_pl, rif_index,
+				  MLXSW_REG_RTDP_IPIP_SIP_CHECK_FILTER_IPV6,
+				  type_check, has_ikey,
+				  ipip_entry->dip_kvdl_index, ikey);
+
+	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rtdp), rtdp_pl);
+}
+
+static bool mlxsw_sp_ipip_can_offload_gre6(const struct mlxsw_sp *mlxsw_sp,
+					   const struct net_device *ol_dev)
+{
+	struct __ip6_tnl_parm tparm = mlxsw_sp_ipip_netdev_parms6(ol_dev);
+	bool inherit_tos = tparm.flags & IP6_TNL_F_USE_ORIG_TCLASS;
+	bool inherit_ttl = tparm.hop_limit == 0;
+	IP_TUNNEL_DECLARE_FLAGS(okflags) = { };
+
+	/* We can't offload any other features. */
+	__set_bit(IP_TUNNEL_KEY_BIT, okflags);
+
+	return ip_tunnel_flags_subset(tparm.i_flags, okflags) &&
+	       ip_tunnel_flags_subset(tparm.o_flags, okflags) &&
+	       inherit_ttl && inherit_tos &&
+	       mlxsw_sp_ipip_tunnel_complete(MLXSW_SP_L3_PROTO_IPV6, ol_dev);
+}
+
+static struct mlxsw_sp_rif_ipip_lb_config
+mlxsw_sp_ipip_ol_loopback_config_gre6(struct mlxsw_sp *mlxsw_sp,
+				      const struct net_device *ol_dev)
+{
+	struct __ip6_tnl_parm parms = mlxsw_sp_ipip_netdev_parms6(ol_dev);
+	enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;
+
+	lb_ipipt = mlxsw_sp_ipip_parms6_has_okey(&parms) ?
+		MLXSW_REG_RITR_LOOPBACK_IPIP_TYPE_IP_IN_GRE_KEY_IN_IP :
+		MLXSW_REG_RITR_LOOPBACK_IPIP_TYPE_IP_IN_GRE_IN_IP;
+	return (struct mlxsw_sp_rif_ipip_lb_config){
+		.lb_ipipt = lb_ipipt,
+		.okey = mlxsw_sp_ipip_parms6_okey(&parms),
+		.ul_protocol = MLXSW_SP_L3_PROTO_IPV6,
+		.saddr = mlxsw_sp_ipip_netdev_saddr(MLXSW_SP_L3_PROTO_IPV6,
+						    ol_dev),
+	};
+}
+
+static int
+mlxsw_sp_ipip_ol_netdev_change_gre6(struct mlxsw_sp *mlxsw_sp,
+				    struct mlxsw_sp_ipip_entry *ipip_entry,
+				    struct netlink_ext_ack *extack)
+{
+	u32 new_kvdl_index, old_kvdl_index = ipip_entry->dip_kvdl_index;
+	struct in6_addr old_addr6 = ipip_entry->parms.daddr.addr6;
+	struct mlxsw_sp_ipip_parms new_parms;
+	int err;
+
+	new_parms = mlxsw_sp_ipip_netdev_parms_init_gre6(ipip_entry->ol_dev);
+
+	err = mlxsw_sp_ipv6_addr_kvdl_index_get(mlxsw_sp,
+						&new_parms.daddr.addr6,
+						&new_kvdl_index);
+	if (err)
+		return err;
+	ipip_entry->dip_kvdl_index = new_kvdl_index;
+
+	err = mlxsw_sp_ipip_ol_netdev_change_gre(mlxsw_sp, ipip_entry,
+						 &new_parms, extack);
+	if (err)
+		goto err_change_gre;
+
+	mlxsw_sp_ipv6_addr_put(mlxsw_sp, &old_addr6);
+
+	return 0;
+
+err_change_gre:
+	ipip_entry->dip_kvdl_index = old_kvdl_index;
+	mlxsw_sp_ipv6_addr_put(mlxsw_sp, &new_parms.daddr.addr6);
+	return err;
+}
+
+static int
+mlxsw_sp_ipip_rem_addr_set_gre6(struct mlxsw_sp *mlxsw_sp,
+				struct mlxsw_sp_ipip_entry *ipip_entry)
+{
+	return mlxsw_sp_ipv6_addr_kvdl_index_get(mlxsw_sp,
+						 &ipip_entry->parms.daddr.addr6,
+						 &ipip_entry->dip_kvdl_index);
+}
+
+static void
+mlxsw_sp_ipip_rem_addr_unset_gre6(struct mlxsw_sp *mlxsw_sp,
+				  const struct mlxsw_sp_ipip_entry *ipip_entry)
+{
+	mlxsw_sp_ipv6_addr_put(mlxsw_sp, &ipip_entry->parms.daddr.addr6);
+}
+
+static const struct mlxsw_sp_ipip_ops mlxsw_sp1_ipip_gre6_ops = {
+	.dev_type = ARPHRD_IP6GRE,
+	.ul_proto = MLXSW_SP_L3_PROTO_IPV6,
+	.inc_parsing_depth = true,
+	.double_rif_entry = true,
+	.parms_init = mlxsw_sp_ipip_netdev_parms_init_gre6,
+	.nexthop_update = mlxsw_sp_ipip_nexthop_update_gre6,
+	.decap_config = mlxsw_sp_ipip_decap_config_gre6,
+	.can_offload = mlxsw_sp_ipip_can_offload_gre6,
+	.ol_loopback_config = mlxsw_sp_ipip_ol_loopback_config_gre6,
+	.ol_netdev_change = mlxsw_sp_ipip_ol_netdev_change_gre6,
+	.rem_ip_addr_set = mlxsw_sp_ipip_rem_addr_set_gre6,
+	.rem_ip_addr_unset = mlxsw_sp_ipip_rem_addr_unset_gre6,
+};
+
+const struct mlxsw_sp_ipip_ops *mlxsw_sp1_ipip_ops_arr[] = {
+	[MLXSW_SP_IPIP_TYPE_GRE4] = &mlxsw_sp_ipip_gre4_ops,
+	[MLXSW_SP_IPIP_TYPE_GRE6] = &mlxsw_sp1_ipip_gre6_ops,
+};
+
+static const struct mlxsw_sp_ipip_ops mlxsw_sp2_ipip_gre6_ops = {
+	.dev_type = ARPHRD_IP6GRE,
+	.ul_proto = MLXSW_SP_L3_PROTO_IPV6,
+	.inc_parsing_depth = true,
+	.parms_init = mlxsw_sp_ipip_netdev_parms_init_gre6,
+	.nexthop_update = mlxsw_sp_ipip_nexthop_update_gre6,
+	.decap_config = mlxsw_sp_ipip_decap_config_gre6,
+	.can_offload = mlxsw_sp_ipip_can_offload_gre6,
+	.ol_loopback_config = mlxsw_sp_ipip_ol_loopback_config_gre6,
+	.ol_netdev_change = mlxsw_sp_ipip_ol_netdev_change_gre6,
+	.rem_ip_addr_set = mlxsw_sp_ipip_rem_addr_set_gre6,
+	.rem_ip_addr_unset = mlxsw_sp_ipip_rem_addr_unset_gre6,
+};
+
+const struct mlxsw_sp_ipip_ops *mlxsw_sp2_ipip_ops_arr[] = {
 	[MLXSW_SP_IPIP_TYPE_GRE4] = &mlxsw_sp_ipip_gre4_ops,
+	[MLXSW_SP_IPIP_TYPE_GRE6] = &mlxsw_sp2_ipip_gre6_ops,
 };
 
 static int mlxsw_sp_ipip_ecn_encap_init_one(struct mlxsw_sp *mlxsw_sp,
@@ -371,12 +595,11 @@ static int mlxsw_sp_ipip_ecn_decap_init_one(struct mlxsw_sp *mlxsw_sp,
 					    u8 inner_ecn, u8 outer_ecn)
 {
 	char tidem_pl[MLXSW_REG_TIDEM_LEN];
-	bool trap_en, set_ce = false;
 	u8 new_inner_ecn;
+	bool trap_en;
 
-	trap_en = __INET_ECN_decapsulate(outer_ecn, inner_ecn, &set_ce);
-	new_inner_ecn = set_ce ? INET_ECN_CE : inner_ecn;
-
+	new_inner_ecn = mlxsw_sp_tunnel_ecn_decap(outer_ecn, inner_ecn,
+						  &trap_en);
 	mlxsw_reg_tidem_pack(tidem_pl, outer_ecn, inner_ecn, new_inner_ecn,
 			     trap_en, trap_en ? MLXSW_TRAP_ID_DECAP_ECN0 : 0);
 	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tidem), tidem_pl);
@@ -398,3 +621,22 @@ int mlxsw_sp_ipip_ecn_decap_init(struct mlxsw_sp *mlxsw_sp)
 
 	return 0;
 }
+
+struct net_device *
+mlxsw_sp_ipip_netdev_ul_dev_get(const struct net_device *ol_dev)
+{
+	struct net *net = dev_net(ol_dev);
+	struct ip_tunnel *tun4;
+	struct ip6_tnl *tun6;
+
+	switch (ol_dev->type) {
+	case ARPHRD_IPGRE:
+		tun4 = netdev_priv(ol_dev);
+		return dev_get_by_index_rcu(net, tun4->parms.link);
+	case ARPHRD_IP6GRE:
+		tun6 = netdev_priv(ol_dev);
+		return dev_get_by_index_rcu(net, tun6->parms.link);
+	default:
+		return NULL;
+	}
+}