net/mlx5: Add creation flags when adding new flow table

When creating flow tables, allow the caller to specify creation flags.
Currently no flags are used and as such this patch doesn't add any new
functionality.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/infiniband/hw/mlx5/main.c

@@ -1857,7 +1857,7 @@ static struct mlx5_ib_flow_prio *get_flow_table(struct mlx5_ib_dev *dev,
 		ft = mlx5_create_auto_grouped_flow_table(ns, priority,
 							 num_entries,
 							 num_groups,
-							 0);
+							 0, 0);
 
 		if (!IS_ERR(ft)) {
 			prio->refcount = 0;

drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c

@@ -324,7 +324,7 @@ static int arfs_create_table(struct mlx5e_priv *priv,
 	int err;
 
 	ft->t = mlx5_create_flow_table(priv->fs.ns, MLX5E_NIC_PRIO,
-				       MLX5E_ARFS_TABLE_SIZE, MLX5E_ARFS_FT_LEVEL);
+				       MLX5E_ARFS_TABLE_SIZE, MLX5E_ARFS_FT_LEVEL, 0);
 	if (IS_ERR(ft->t)) {
 		err = PTR_ERR(ft->t);
 		ft->t = NULL;

drivers/net/ethernet/mellanox/mlx5/core/en_fs.c

@@ -777,7 +777,7 @@ static int mlx5e_create_ttc_table(struct mlx5e_priv *priv)
 	int err;
 
 	ft->t = mlx5_create_flow_table(priv->fs.ns, MLX5E_NIC_PRIO,
-				       MLX5E_TTC_TABLE_SIZE, MLX5E_TTC_FT_LEVEL);
+				       MLX5E_TTC_TABLE_SIZE, MLX5E_TTC_FT_LEVEL, 0);
 	if (IS_ERR(ft->t)) {
 		err = PTR_ERR(ft->t);
 		ft->t = NULL;
@@ -948,7 +948,7 @@ static int mlx5e_create_l2_table(struct mlx5e_priv *priv)
 
 	ft->num_groups = 0;
 	ft->t = mlx5_create_flow_table(priv->fs.ns, MLX5E_NIC_PRIO,
-				       MLX5E_L2_TABLE_SIZE, MLX5E_L2_FT_LEVEL);
+				       MLX5E_L2_TABLE_SIZE, MLX5E_L2_FT_LEVEL, 0);
 
 	if (IS_ERR(ft->t)) {
 		err = PTR_ERR(ft->t);
@@ -1038,7 +1038,7 @@ static int mlx5e_create_vlan_table(struct mlx5e_priv *priv)
 
 	ft->num_groups = 0;
 	ft->t = mlx5_create_flow_table(priv->fs.ns, MLX5E_NIC_PRIO,
-				       MLX5E_VLAN_TABLE_SIZE, MLX5E_VLAN_FT_LEVEL);
+				       MLX5E_VLAN_TABLE_SIZE, MLX5E_VLAN_FT_LEVEL, 0);
 
 	if (IS_ERR(ft->t)) {
 		err = PTR_ERR(ft->t);

drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c

@@ -99,7 +99,7 @@ static struct mlx5e_ethtool_table *get_flow_table(struct mlx5e_priv *priv,
 			   MLX5E_ETHTOOL_NUM_ENTRIES);
 	ft = mlx5_create_auto_grouped_flow_table(ns, prio,
 						 table_size,
-						 MLX5E_ETHTOOL_NUM_GROUPS, 0);
+						 MLX5E_ETHTOOL_NUM_GROUPS, 0, 0);
 	if (IS_ERR(ft))
 		return (void *)ft;
 

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -83,7 +83,7 @@ mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv,
 							    MLX5E_TC_PRIO,
 							    MLX5E_TC_TABLE_NUM_ENTRIES,
 							    MLX5E_TC_TABLE_NUM_GROUPS,
-							    0);
+							    0, 0);
 		if (IS_ERR(priv->fs.tc.t)) {
 			netdev_err(priv->netdev,
 				   "Failed to create tc offload table\n");

drivers/net/ethernet/mellanox/mlx5/core/eswitch.c

@@ -361,7 +361,7 @@ static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw, int nvports)
 	memset(flow_group_in, 0, inlen);
 
 	table_size = BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));
-	fdb = mlx5_create_flow_table(root_ns, 0, table_size, 0);
+	fdb = mlx5_create_flow_table(root_ns, 0, table_size, 0, 0);
 	if (IS_ERR(fdb)) {
 		err = PTR_ERR(fdb);
 		esw_warn(dev, "Failed to create FDB Table err %d\n", err);

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

@@ -423,7 +423,8 @@ static int esw_create_offloads_fdb_table(struct mlx5_eswitch *esw, int nvports)
 
 	fdb = mlx5_create_auto_grouped_flow_table(root_ns, FDB_FAST_PATH,
 						  ESW_OFFLOADS_NUM_ENTRIES,
-						  ESW_OFFLOADS_NUM_GROUPS, 0);
+						  ESW_OFFLOADS_NUM_GROUPS, 0,
+						  0);
 	if (IS_ERR(fdb)) {
 		err = PTR_ERR(fdb);
 		esw_warn(dev, "Failed to create Fast path FDB Table err %d\n", err);
@@ -432,7 +433,7 @@ static int esw_create_offloads_fdb_table(struct mlx5_eswitch *esw, int nvports)
 	esw->fdb_table.fdb = fdb;
 
 	table_size = nvports + MAX_PF_SQ + 1;
-	fdb = mlx5_create_flow_table(root_ns, FDB_SLOW_PATH, table_size, 0);
+	fdb = mlx5_create_flow_table(root_ns, FDB_SLOW_PATH, table_size, 0, 0);
 	if (IS_ERR(fdb)) {
 		err = PTR_ERR(fdb);
 		esw_warn(dev, "Failed to create slow path FDB Table err %d\n", err);
@@ -524,7 +525,7 @@ static int esw_create_offloads_table(struct mlx5_eswitch *esw)
 		return -ENOMEM;
 	}
 
-	ft_offloads = mlx5_create_flow_table(ns, 0, dev->priv.sriov.num_vfs + 2, 0);
+	ft_offloads = mlx5_create_flow_table(ns, 0, dev->priv.sriov.num_vfs + 2, 0, 0);
 	if (IS_ERR(ft_offloads)) {
 		err = PTR_ERR(ft_offloads);
 		esw_warn(esw->dev, "Failed to create offloads table, err %d\n", err);

drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c

@@ -37,6 +37,7 @@
 #include "fs_core.h"
 #include "fs_cmd.h"
 #include "mlx5_core.h"
+#include "eswitch.h"
 
 int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
 			    struct mlx5_flow_table *ft)
@@ -61,8 +62,9 @@ int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
 			       enum fs_flow_table_op_mod op_mod,
 			       enum fs_flow_table_type type, unsigned int level,
 			       unsigned int log_size, struct mlx5_flow_table
-			       *next_ft, unsigned int *table_id)
+			       *next_ft, unsigned int *table_id, u32 flags)
 {
+	int en_encap_decap = !!(flags & MLX5_FLOW_TABLE_TUNNEL_EN);
 	u32 out[MLX5_ST_SZ_DW(create_flow_table_out)] = {0};
 	u32 in[MLX5_ST_SZ_DW(create_flow_table_in)]   = {0};
 	int err;
@@ -78,6 +80,9 @@ int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
 		MLX5_SET(create_flow_table_in, in, other_vport, 1);
 	}
 
+	MLX5_SET(create_flow_table_in, in, decap_en, en_encap_decap);
+	MLX5_SET(create_flow_table_in, in, encap_en, en_encap_decap);
+
 	switch (op_mod) {
 	case FS_FT_OP_MOD_NORMAL:
 		if (next_ft) {

drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.h

@@ -38,7 +38,7 @@ int mlx5_cmd_create_flow_table(struct mlx5_core_dev *dev,
 			       enum fs_flow_table_op_mod op_mod,
 			       enum fs_flow_table_type type, unsigned int level,
 			       unsigned int log_size, struct mlx5_flow_table
-			       *next_ft, unsigned int *table_id);
+			       *next_ft, unsigned int *table_id, u32 flags);
 
 int mlx5_cmd_destroy_flow_table(struct mlx5_core_dev *dev,
 				struct mlx5_flow_table *ft);

drivers/net/ethernet/mellanox/mlx5/core/fs_core.c

@@ -505,7 +505,8 @@ static struct mlx5_flow_group *alloc_flow_group(u32 *create_fg_in)
 
 static struct mlx5_flow_table *alloc_flow_table(int level, u16 vport, int max_fte,
 						enum fs_flow_table_type table_type,
-						enum fs_flow_table_op_mod op_mod)
+						enum fs_flow_table_op_mod op_mod,
+						u32 flags)
 {
 	struct mlx5_flow_table *ft;
 
@@ -519,6 +520,7 @@ static struct mlx5_flow_table *alloc_flow_table(int level, u16 vport, int max_ft
 	ft->type = table_type;
 	ft->vport = vport;
 	ft->max_fte = max_fte;
+	ft->flags = flags;
 	INIT_LIST_HEAD(&ft->fwd_rules);
 	mutex_init(&ft->lock);
 
@@ -777,7 +779,8 @@ static void list_add_flow_table(struct mlx5_flow_table *ft,
 static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 							enum fs_flow_table_op_mod op_mod,
 							u16 vport, int prio,
-							int max_fte, u32 level)
+							int max_fte, u32 level,
+							u32 flags)
 {
 	struct mlx5_flow_table *next_ft = NULL;
 	struct mlx5_flow_table *ft;
@@ -810,7 +813,7 @@ static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespa
 			      vport,
 			      max_fte ? roundup_pow_of_two(max_fte) : 0,
 			      root->table_type,
-			      op_mod);
+			      op_mod, flags);
 	if (!ft) {
 		err = -ENOMEM;
 		goto unlock_root;
@@ -820,7 +823,8 @@ static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespa
 	log_table_sz = ft->max_fte ? ilog2(ft->max_fte) : 0;
 	next_ft = find_next_chained_ft(fs_prio);
 	err = mlx5_cmd_create_flow_table(root->dev, ft->vport, ft->op_mod, ft->type,
-					 ft->level, log_table_sz, next_ft, &ft->id);
+					 ft->level, log_table_sz, next_ft, &ft->id,
+					 ft->flags);
 	if (err)
 		goto free_ft;
 
@@ -845,10 +849,11 @@ static struct mlx5_flow_table *__mlx5_create_flow_table(struct mlx5_flow_namespa
 
 struct mlx5_flow_table *mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 					       int prio, int max_fte,
-					       u32 level)
+					       u32 level,
+					       u32 flags)
 {
 	return __mlx5_create_flow_table(ns, FS_FT_OP_MOD_NORMAL, 0, prio,
-					max_fte, level);
+					max_fte, level, flags);
 }
 
 struct mlx5_flow_table *mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
@@ -856,7 +861,7 @@ struct mlx5_flow_table *mlx5_create_vport_flow_table(struct mlx5_flow_namespace
 						     u32 level, u16 vport)
 {
 	return __mlx5_create_flow_table(ns, FS_FT_OP_MOD_NORMAL, vport, prio,
-					max_fte, level);
+					max_fte, level, 0);
 }
 
 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
@@ -864,7 +869,7 @@ struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
 					       int prio, u32 level)
 {
 	return __mlx5_create_flow_table(ns, FS_FT_OP_MOD_LAG_DEMUX, 0, prio, 0,
-					level);
+					level, 0);
 }
 EXPORT_SYMBOL(mlx5_create_lag_demux_flow_table);
 
@@ -872,14 +877,15 @@ struct mlx5_flow_table *mlx5_create_auto_grouped_flow_table(struct mlx5_flow_nam
 							    int prio,
 							    int num_flow_table_entries,
 							    int max_num_groups,
-							    u32 level)
+							    u32 level,
+							    u32 flags)
 {
 	struct mlx5_flow_table *ft;
 
 	if (max_num_groups > num_flow_table_entries)
 		return ERR_PTR(-EINVAL);
 
-	ft = mlx5_create_flow_table(ns, prio, num_flow_table_entries, level);
+	ft = mlx5_create_flow_table(ns, prio, num_flow_table_entries, level, flags);
 	if (IS_ERR(ft))
 		return ft;
 
@@ -1822,7 +1828,7 @@ static int create_anchor_flow_table(struct mlx5_flow_steering *steering)
 	ns = mlx5_get_flow_namespace(steering->dev, MLX5_FLOW_NAMESPACE_ANCHOR);
 	if (!ns)
 		return -EINVAL;
-	ft = mlx5_create_flow_table(ns, ANCHOR_PRIO, ANCHOR_SIZE, ANCHOR_LEVEL);
+	ft = mlx5_create_flow_table(ns, ANCHOR_PRIO, ANCHOR_SIZE, ANCHOR_LEVEL, 0);
 	if (IS_ERR(ft)) {
 		mlx5_core_err(steering->dev, "Failed to create last anchor flow table");
 		return PTR_ERR(ft);

drivers/net/ethernet/mellanox/mlx5/core/fs_core.h

@@ -117,6 +117,7 @@ struct mlx5_flow_table {
 	struct mutex			lock;
 	/* FWD rules that point on this flow table */
 	struct list_head		fwd_rules;
+	u32				flags;
 };
 
 struct mlx5_fc_cache {

include/linux/mlx5/fs.h

@@ -42,6 +42,10 @@ enum {
 	MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO	= 1 << 16,
 };
 
+enum {
+	MLX5_FLOW_TABLE_TUNNEL_EN = BIT(0),
+};
+
 #define LEFTOVERS_RULE_NUM	 2
 static inline void build_leftovers_ft_param(int *priority,
 					    int *n_ent,
@@ -97,13 +101,15 @@ mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
 				    int prio,
 				    int num_flow_table_entries,
 				    int max_num_groups,
-				    u32 level);
+				    u32 level,
+				    u32 flags);
 
 struct mlx5_flow_table *
 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 		       int prio,
 		       int num_flow_table_entries,
-		       u32 level);
+		       u32 level,
+		       u32 flags);
 struct mlx5_flow_table *
 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
 			     int prio,