1 files changed, 150 insertions, 36 deletions

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 331d26c1181e..1e141b5944cd 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -115,6 +115,7 @@ struct mlxsw_sp_rif_ops {
 
 struct mlxsw_sp_router_ops {
 	int (*init)(struct mlxsw_sp *mlxsw_sp);
+	int (*ipips_init)(struct mlxsw_sp *mlxsw_sp);
 };
 
 static struct mlxsw_sp_rif *
@@ -1055,22 +1056,13 @@ static void mlxsw_sp_vrs_fini(struct mlxsw_sp *mlxsw_sp)
 	kfree(mlxsw_sp->router->vrs);
 }
 
-static struct net_device *
-__mlxsw_sp_ipip_netdev_ul_dev_get(const struct net_device *ol_dev)
-{
-	struct ip_tunnel *tun = netdev_priv(ol_dev);
-	struct net *net = dev_net(ol_dev);
-
-	return dev_get_by_index_rcu(net, tun->parms.link);
-}
-
 u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev)
 {
 	struct net_device *d;
 	u32 tb_id;
 
 	rcu_read_lock();
-	d = __mlxsw_sp_ipip_netdev_ul_dev_get(ol_dev);
+	d = mlxsw_sp_ipip_netdev_ul_dev_get(ol_dev);
 	if (d)
 		tb_id = l3mdev_fib_table(d) ? : RT_TABLE_MAIN;
 	else
@@ -1116,6 +1108,7 @@ mlxsw_sp_ipip_entry_alloc(struct mlxsw_sp *mlxsw_sp,
 	const struct mlxsw_sp_ipip_ops *ipip_ops;
 	struct mlxsw_sp_ipip_entry *ipip_entry;
 	struct mlxsw_sp_ipip_entry *ret = NULL;
+	int err;
 
 	ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipipt];
 	ipip_entry = kzalloc(sizeof(*ipip_entry), GFP_KERNEL);
@@ -1131,26 +1124,30 @@ mlxsw_sp_ipip_entry_alloc(struct mlxsw_sp *mlxsw_sp,
 
 	ipip_entry->ipipt = ipipt;
 	ipip_entry->ol_dev = ol_dev;
+	ipip_entry->parms = ipip_ops->parms_init(ol_dev);
 
-	switch (ipip_ops->ul_proto) {
-	case MLXSW_SP_L3_PROTO_IPV4:
-		ipip_entry->parms4 = mlxsw_sp_ipip_netdev_parms4(ol_dev);
-		break;
-	case MLXSW_SP_L3_PROTO_IPV6:
-		WARN_ON(1);
-		break;
+	err = ipip_ops->rem_ip_addr_set(mlxsw_sp, ipip_entry);
+	if (err) {
+		ret = ERR_PTR(err);
+		goto err_rem_ip_addr_set;
 	}
 
 	return ipip_entry;
 
+err_rem_ip_addr_set:
+	mlxsw_sp_rif_destroy(&ipip_entry->ol_lb->common);
 err_ol_ipip_lb_create:
 	kfree(ipip_entry);
 	return ret;
 }
 
-static void
-mlxsw_sp_ipip_entry_dealloc(struct mlxsw_sp_ipip_entry *ipip_entry)
+static void mlxsw_sp_ipip_entry_dealloc(struct mlxsw_sp *mlxsw_sp,
+					struct mlxsw_sp_ipip_entry *ipip_entry)
 {
+	const struct mlxsw_sp_ipip_ops *ipip_ops =
+		mlxsw_sp->router->ipip_ops_arr[ipip_entry->ipipt];
+
+	ipip_ops->rem_ip_addr_unset(mlxsw_sp, ipip_entry);
 	mlxsw_sp_rif_destroy(&ipip_entry->ol_lb->common);
 	kfree(ipip_entry);
 }
@@ -1174,6 +1171,32 @@ mlxsw_sp_ipip_entry_saddr_matches(struct mlxsw_sp *mlxsw_sp,
 	       mlxsw_sp_l3addr_eq(&tun_saddr, &saddr);
 }
 
+static int mlxsw_sp_ipip_decap_parsing_depth_inc(struct mlxsw_sp *mlxsw_sp,
+						 enum mlxsw_sp_ipip_type ipipt)
+{
+	const struct mlxsw_sp_ipip_ops *ipip_ops;
+
+	ipip_ops = mlxsw_sp->router->ipip_ops_arr[ipipt];
+
+	/* Not all tunnels require to increase the default pasing depth
+	 * (96 bytes).
+	 */
+	if (ipip_ops->inc_parsing_depth)
+		return mlxsw_sp_parsing_depth_inc(mlxsw_sp);
+
+	return 0;
+}
+
+static void mlxsw_sp_ipip_decap_parsing_depth_dec(struct mlxsw_sp *mlxsw_sp,
+						  enum mlxsw_sp_ipip_type ipipt)
+{
+	const struct mlxsw_sp_ipip_ops *ipip_ops =
+		mlxsw_sp->router->ipip_ops_arr[ipipt];
+
+	if (ipip_ops->inc_parsing_depth)
+		mlxsw_sp_parsing_depth_dec(mlxsw_sp);
+}
+
 static int
 mlxsw_sp_fib_entry_decap_init(struct mlxsw_sp *mlxsw_sp,
 			      struct mlxsw_sp_fib_entry *fib_entry,
@@ -1187,18 +1210,32 @@ mlxsw_sp_fib_entry_decap_init(struct mlxsw_sp *mlxsw_sp,
 	if (err)
 		return err;
 
+	err = mlxsw_sp_ipip_decap_parsing_depth_inc(mlxsw_sp,
+						    ipip_entry->ipipt);
+	if (err)
+		goto err_parsing_depth_inc;
+
 	ipip_entry->decap_fib_entry = fib_entry;
 	fib_entry->decap.ipip_entry = ipip_entry;
 	fib_entry->decap.tunnel_index = tunnel_index;
+
 	return 0;
+
+err_parsing_depth_inc:
+	mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ, 1,
+			   fib_entry->decap.tunnel_index);
+	return err;
 }
 
 static void mlxsw_sp_fib_entry_decap_fini(struct mlxsw_sp *mlxsw_sp,
 					  struct mlxsw_sp_fib_entry *fib_entry)
 {
+	enum mlxsw_sp_ipip_type ipipt = fib_entry->decap.ipip_entry->ipipt;
+
 	/* Unlink this node from the IPIP entry that it's the decap entry of. */
 	fib_entry->decap.ipip_entry->decap_fib_entry = NULL;
 	fib_entry->decap.ipip_entry = NULL;
+	mlxsw_sp_ipip_decap_parsing_depth_dec(mlxsw_sp, ipipt);
 	mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ,
 			   1, fib_entry->decap.tunnel_index);
 }
@@ -1309,6 +1346,11 @@ mlxsw_sp_ipip_entry_find_decap(struct mlxsw_sp *mlxsw_sp,
 		saddr_len = 4;
 		saddr_prefix_len = 32;
 		break;
+	case MLXSW_SP_L3_PROTO_IPV6:
+		saddrp = &saddr.addr6;
+		saddr_len = 16;
+		saddr_prefix_len = 128;
+		break;
 	default:
 		WARN_ON(1);
 		return NULL;
@@ -1345,7 +1387,7 @@ mlxsw_sp_ipip_entry_destroy(struct mlxsw_sp *mlxsw_sp,
 			    struct mlxsw_sp_ipip_entry *ipip_entry)
 {
 	list_del(&ipip_entry->ipip_list_node);
-	mlxsw_sp_ipip_entry_dealloc(ipip_entry);
+	mlxsw_sp_ipip_entry_dealloc(mlxsw_sp, ipip_entry);
 }
 
 static bool
@@ -1450,7 +1492,7 @@ mlxsw_sp_ipip_entry_find_by_ul_dev(const struct mlxsw_sp *mlxsw_sp,
 		struct net_device *ipip_ul_dev;
 
 		rcu_read_lock();
-		ipip_ul_dev = __mlxsw_sp_ipip_netdev_ul_dev_get(ol_dev);
+		ipip_ul_dev = mlxsw_sp_ipip_netdev_ul_dev_get(ol_dev);
 		rcu_read_unlock();
 
 		if (ipip_ul_dev == ul_dev)
@@ -1536,23 +1578,34 @@ mlxsw_sp_rif_ipip_lb_op(struct mlxsw_sp_rif_ipip_lb *lb_rif, u16 ul_vr_id,
 			u16 ul_rif_id, bool enable)
 {
 	struct mlxsw_sp_rif_ipip_lb_config lb_cf = lb_rif->lb_config;
+	enum mlxsw_reg_ritr_loopback_ipip_options ipip_options;
 	struct mlxsw_sp_rif *rif = &lb_rif->common;
 	struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp;
 	char ritr_pl[MLXSW_REG_RITR_LEN];
+	struct in6_addr *saddr6;
 	u32 saddr4;
 
+	ipip_options = MLXSW_REG_RITR_LOOPBACK_IPIP_OPTIONS_GRE_KEY_PRESET;
 	switch (lb_cf.ul_protocol) {
 	case MLXSW_SP_L3_PROTO_IPV4:
 		saddr4 = be32_to_cpu(lb_cf.saddr.addr4);
 		mlxsw_reg_ritr_pack(ritr_pl, enable, MLXSW_REG_RITR_LOOPBACK_IF,
 				    rif->rif_index, rif->vr_id, rif->dev->mtu);
 		mlxsw_reg_ritr_loopback_ipip4_pack(ritr_pl, lb_cf.lb_ipipt,
-			    MLXSW_REG_RITR_LOOPBACK_IPIP_OPTIONS_GRE_KEY_PRESET,
-			    ul_vr_id, ul_rif_id, saddr4, lb_cf.okey);
+						   ipip_options, ul_vr_id,
+						   ul_rif_id, saddr4,
+						   lb_cf.okey);
 		break;
 
 	case MLXSW_SP_L3_PROTO_IPV6:
-		return -EAFNOSUPPORT;
+		saddr6 = &lb_cf.saddr.addr6;
+		mlxsw_reg_ritr_pack(ritr_pl, enable, MLXSW_REG_RITR_LOOPBACK_IF,
+				    rif->rif_index, rif->vr_id, rif->dev->mtu);
+		mlxsw_reg_ritr_loopback_ipip6_pack(ritr_pl, lb_cf.lb_ipipt,
+						   ipip_options, ul_vr_id,
+						   ul_rif_id, saddr6,
+						   lb_cf.okey);
+		break;
 	}
 
 	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
@@ -1827,7 +1880,7 @@ static void mlxsw_sp_ipip_demote_tunnel_by_ul_netdev(struct mlxsw_sp *mlxsw_sp,
 		struct net_device *ipip_ul_dev;
 
 		rcu_read_lock();
-		ipip_ul_dev = __mlxsw_sp_ipip_netdev_ul_dev_get(ol_dev);
+		ipip_ul_dev = mlxsw_sp_ipip_netdev_ul_dev_get(ol_dev);
 		rcu_read_unlock();
 		if (ipip_ul_dev == ul_dev)
 			mlxsw_sp_ipip_entry_demote_tunnel(mlxsw_sp, ipip_entry);
@@ -4152,7 +4205,7 @@ static bool mlxsw_sp_ipip_netdev_ul_up(struct net_device *ol_dev)
 	bool is_up;
 
 	rcu_read_lock();
-	ul_dev = __mlxsw_sp_ipip_netdev_ul_dev_get(ol_dev);
+	ul_dev = mlxsw_sp_ipip_netdev_ul_dev_get(ol_dev);
 	is_up = ul_dev ? (ul_dev->flags & IFF_UP) : true;
 	rcu_read_unlock();
 
@@ -6069,8 +6122,8 @@ mlxsw_sp_fib4_entry_type_set(struct mlxsw_sp *mlxsw_sp,
 }
 
 static void
-mlxsw_sp_fib4_entry_type_unset(struct mlxsw_sp *mlxsw_sp,
-			       struct mlxsw_sp_fib_entry *fib_entry)
+mlxsw_sp_fib_entry_type_unset(struct mlxsw_sp *mlxsw_sp,
+			      struct mlxsw_sp_fib_entry *fib_entry)
 {
 	switch (fib_entry->type) {
 	case MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP:
@@ -6081,6 +6134,13 @@ mlxsw_sp_fib4_entry_type_unset(struct mlxsw_sp *mlxsw_sp,
 	}
 }
 
+static void
+mlxsw_sp_fib4_entry_type_unset(struct mlxsw_sp *mlxsw_sp,
+			       struct mlxsw_sp_fib4_entry *fib4_entry)
+{
+	mlxsw_sp_fib_entry_type_unset(mlxsw_sp, &fib4_entry->common);
+}
+
 static struct mlxsw_sp_fib4_entry *
 mlxsw_sp_fib4_entry_create(struct mlxsw_sp *mlxsw_sp,
 			   struct mlxsw_sp_fib_node *fib_node,
@@ -6141,7 +6201,7 @@ static void mlxsw_sp_fib4_entry_destroy(struct mlxsw_sp *mlxsw_sp,
 	struct mlxsw_sp_fib_node *fib_node = fib4_entry->common.fib_node;
 
 	fib_info_put(fib4_entry->fi);
-	mlxsw_sp_fib4_entry_type_unset(mlxsw_sp, &fib4_entry->common);
+	mlxsw_sp_fib4_entry_type_unset(mlxsw_sp, fib4_entry);
 	mlxsw_sp_nexthop_group_vr_unlink(fib4_entry->common.nh_group,
 					 fib_node->fib);
 	mlxsw_sp_nexthop4_group_put(mlxsw_sp, &fib4_entry->common);
@@ -6927,11 +6987,38 @@ mlxsw_sp_fib6_entry_nexthop_del(struct mlxsw_sp *mlxsw_sp,
 	mlxsw_sp_nexthop6_group_update(mlxsw_sp, op_ctx, fib6_entry);
 }
 
-static void mlxsw_sp_fib6_entry_type_set(struct mlxsw_sp *mlxsw_sp,
-					 struct mlxsw_sp_fib_entry *fib_entry,
-					 const struct fib6_info *rt)
+static int
+mlxsw_sp_fib6_entry_type_set_local(struct mlxsw_sp *mlxsw_sp,
+				   struct mlxsw_sp_fib_entry *fib_entry,
+				   const struct fib6_info *rt)
 {
-	if (rt->fib6_flags & (RTF_LOCAL | RTF_ANYCAST))
+	struct mlxsw_sp_nexthop_group_info *nhgi = fib_entry->nh_group->nhgi;
+	union mlxsw_sp_l3addr dip = { .addr6 = rt->fib6_dst.addr };
+	int ifindex = nhgi->nexthops[0].ifindex;
+	struct mlxsw_sp_ipip_entry *ipip_entry;
+
+	fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_TRAP;
+	ipip_entry = mlxsw_sp_ipip_entry_find_by_decap(mlxsw_sp, ifindex,
+						       MLXSW_SP_L3_PROTO_IPV6,
+						       dip);
+
+	if (ipip_entry && ipip_entry->ol_dev->flags & IFF_UP) {
+		fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP;
+		return mlxsw_sp_fib_entry_decap_init(mlxsw_sp, fib_entry,
+						     ipip_entry);
+	}
+
+	return 0;
+}
+
+static int mlxsw_sp_fib6_entry_type_set(struct mlxsw_sp *mlxsw_sp,
+					struct mlxsw_sp_fib_entry *fib_entry,
+					const struct fib6_info *rt)
+{
+	if (rt->fib6_flags & RTF_LOCAL)
+		return mlxsw_sp_fib6_entry_type_set_local(mlxsw_sp, fib_entry,
+							  rt);
+	if (rt->fib6_flags & RTF_ANYCAST)
 		fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_TRAP;
 	else if (rt->fib6_type == RTN_BLACKHOLE)
 		fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_BLACKHOLE;
@@ -6941,6 +7028,8 @@ static void mlxsw_sp_fib6_entry_type_set(struct mlxsw_sp *mlxsw_sp,
 		fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_REMOTE;
 	else
 		fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_LOCAL;
+
+	return 0;
 }
 
 static void
@@ -6998,12 +7087,16 @@ mlxsw_sp_fib6_entry_create(struct mlxsw_sp *mlxsw_sp,
 	if (err)
 		goto err_nexthop_group_vr_link;
 
-	mlxsw_sp_fib6_entry_type_set(mlxsw_sp, fib_entry, rt_arr[0]);
+	err = mlxsw_sp_fib6_entry_type_set(mlxsw_sp, fib_entry, rt_arr[0]);
+	if (err)
+		goto err_fib6_entry_type_set;
 
 	fib_entry->fib_node = fib_node;
 
 	return fib6_entry;
 
+err_fib6_entry_type_set:
+	mlxsw_sp_nexthop_group_vr_unlink(fib_entry->nh_group, fib_node->fib);
 err_nexthop_group_vr_link:
 	mlxsw_sp_nexthop6_group_put(mlxsw_sp, fib_entry);
 err_nexthop6_group_get:
@@ -7022,11 +7115,19 @@ err_fib_entry_priv_create:
 	return ERR_PTR(err);
 }
 
+static void
+mlxsw_sp_fib6_entry_type_unset(struct mlxsw_sp *mlxsw_sp,
+			       struct mlxsw_sp_fib6_entry *fib6_entry)
+{
+	mlxsw_sp_fib_entry_type_unset(mlxsw_sp, &fib6_entry->common);
+}
+
 static void mlxsw_sp_fib6_entry_destroy(struct mlxsw_sp *mlxsw_sp,
 					struct mlxsw_sp_fib6_entry *fib6_entry)
 {
 	struct mlxsw_sp_fib_node *fib_node = fib6_entry->common.fib_node;
 
+	mlxsw_sp_fib6_entry_type_unset(mlxsw_sp, fib6_entry);
 	mlxsw_sp_nexthop_group_vr_unlink(fib6_entry->common.nh_group,
 					 fib_node->fib);
 	mlxsw_sp_nexthop6_group_put(mlxsw_sp, &fib6_entry->common);
@@ -9476,7 +9577,6 @@ static int mlxsw_sp_ipips_init(struct mlxsw_sp *mlxsw_sp)
 {
 	int err;
 
-	mlxsw_sp->router->ipip_ops_arr = mlxsw_sp_ipip_ops_arr;
 	INIT_LIST_HEAD(&mlxsw_sp->router->ipip_list);
 
 	err = mlxsw_sp_ipip_ecn_encap_init(mlxsw_sp);
@@ -9489,6 +9589,18 @@ static int mlxsw_sp_ipips_init(struct mlxsw_sp *mlxsw_sp)
 	return mlxsw_sp_ipip_config_tigcr(mlxsw_sp);
 }
 
+static int mlxsw_sp1_ipips_init(struct mlxsw_sp *mlxsw_sp)
+{
+	mlxsw_sp->router->ipip_ops_arr = mlxsw_sp1_ipip_ops_arr;
+	return mlxsw_sp_ipips_init(mlxsw_sp);
+}
+
+static int mlxsw_sp2_ipips_init(struct mlxsw_sp *mlxsw_sp)
+{
+	mlxsw_sp->router->ipip_ops_arr = mlxsw_sp2_ipip_ops_arr;
+	return mlxsw_sp_ipips_init(mlxsw_sp);
+}
+
 static void mlxsw_sp_ipips_fini(struct mlxsw_sp *mlxsw_sp)
 {
 	WARN_ON(!list_empty(&mlxsw_sp->router->ipip_list));
@@ -9903,6 +10015,7 @@ static int mlxsw_sp1_router_init(struct mlxsw_sp *mlxsw_sp)
 
 const struct mlxsw_sp_router_ops mlxsw_sp1_router_ops = {
 	.init = mlxsw_sp1_router_init,
+	.ipips_init = mlxsw_sp1_ipips_init,
 };
 
 static int mlxsw_sp2_router_init(struct mlxsw_sp *mlxsw_sp)
@@ -9918,6 +10031,7 @@ static int mlxsw_sp2_router_init(struct mlxsw_sp *mlxsw_sp)
 
 const struct mlxsw_sp_router_ops mlxsw_sp2_router_ops = {
 	.init = mlxsw_sp2_router_init,
+	.ipips_init = mlxsw_sp2_ipips_init,
 };
 
 int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp,
@@ -9963,7 +10077,7 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp,
 	if (err)
 		goto err_rifs_init;
 
-	err = mlxsw_sp_ipips_init(mlxsw_sp);
+	err = mlxsw_sp->router_ops->ipips_init(mlxsw_sp);
 	if (err)
 		goto err_ipips_init;