From: Maor Gottlieb <maorg@nvidia.com>
Date: Thu, 15 Jul 2021 09:43:35 +0300
Subject: net/mlx5: Lag, add support to create TTC tables for LAG port
selection
Patch-mainline: v5.16-rc1
Git-commit: 8e25a2bc6687cd45aef909d6d862718745b5a3fc
References: jsc#SLE-19253
Add support to create inner and outer TTC tables for LAG port
selection. These tables are used to classify the packets in
order to select the related definer.
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c | 91 +++++++++++++++++
drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.h | 1
2 files changed, 92 insertions(+)
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c
@@ -5,6 +5,8 @@
#include "lag.h"
enum {
+ MLX5_LAG_FT_LEVEL_TTC,
+ MLX5_LAG_FT_LEVEL_INNER_TTC,
MLX5_LAG_FT_LEVEL_DEFINER,
};
@@ -420,3 +422,92 @@ static void set_tt_map(struct mlx5_lag_p
break;
}
}
+
+#define SET_IGNORE_DESTS_BITS(tt_map, dests) \
+ do { \
+ int idx; \
+ \
+ for_each_clear_bit(idx, tt_map, MLX5_NUM_TT) \
+ set_bit(idx, dests); \
+ } while (0)
+
+static void mlx5_lag_set_inner_ttc_params(struct mlx5_lag *ldev,
+ struct ttc_params *ttc_params)
+{
+ struct mlx5_core_dev *dev = ldev->pf[MLX5_LAG_P1].dev;
+ struct mlx5_lag_port_sel *port_sel = &ldev->port_sel;
+ struct mlx5_flow_table_attr *ft_attr;
+ int tt;
+
+ ttc_params->ns = mlx5_get_flow_namespace(dev,
+ MLX5_FLOW_NAMESPACE_PORT_SEL);
+ ft_attr = &ttc_params->ft_attr;
+ ft_attr->level = MLX5_LAG_FT_LEVEL_INNER_TTC;
+
+ for_each_set_bit(tt, port_sel->tt_map, MLX5_NUM_TT) {
+ ttc_params->dests[tt].type =
+ MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
+ ttc_params->dests[tt].ft = port_sel->inner.definers[tt]->ft;
+ }
+ SET_IGNORE_DESTS_BITS(port_sel->tt_map, ttc_params->ignore_dests);
+}
+
+static void mlx5_lag_set_outer_ttc_params(struct mlx5_lag *ldev,
+ struct ttc_params *ttc_params)
+{
+ struct mlx5_core_dev *dev = ldev->pf[MLX5_LAG_P1].dev;
+ struct mlx5_lag_port_sel *port_sel = &ldev->port_sel;
+ struct mlx5_flow_table_attr *ft_attr;
+ int tt;
+
+ ttc_params->ns = mlx5_get_flow_namespace(dev,
+ MLX5_FLOW_NAMESPACE_PORT_SEL);
+ ft_attr = &ttc_params->ft_attr;
+ ft_attr->level = MLX5_LAG_FT_LEVEL_TTC;
+
+ for_each_set_bit(tt, port_sel->tt_map, MLX5_NUM_TT) {
+ ttc_params->dests[tt].type =
+ MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
+ ttc_params->dests[tt].ft = port_sel->outer.definers[tt]->ft;
+ }
+ SET_IGNORE_DESTS_BITS(port_sel->tt_map, ttc_params->ignore_dests);
+
+ ttc_params->inner_ttc = port_sel->tunnel;
+ if (!port_sel->tunnel)
+ return;
+
+ for (tt = 0; tt < MLX5_NUM_TUNNEL_TT; tt++) {
+ ttc_params->tunnel_dests[tt].type =
+ MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
+ ttc_params->tunnel_dests[tt].ft =
+ mlx5_get_ttc_flow_table(port_sel->inner.ttc);
+ }
+}
+
+static int mlx5_lag_create_ttc_table(struct mlx5_lag *ldev)
+{
+ struct mlx5_core_dev *dev = ldev->pf[MLX5_LAG_P1].dev;
+ struct mlx5_lag_port_sel *port_sel = &ldev->port_sel;
+ struct ttc_params ttc_params = {};
+
+ mlx5_lag_set_outer_ttc_params(ldev, &ttc_params);
+ port_sel->outer.ttc = mlx5_create_ttc_table(dev, &ttc_params);
+ if (IS_ERR(port_sel->outer.ttc))
+ return PTR_ERR(port_sel->outer.ttc);
+
+ return 0;
+}
+
+static int mlx5_lag_create_inner_ttc_table(struct mlx5_lag *ldev)
+{
+ struct mlx5_core_dev *dev = ldev->pf[MLX5_LAG_P1].dev;
+ struct mlx5_lag_port_sel *port_sel = &ldev->port_sel;
+ struct ttc_params ttc_params = {};
+
+ mlx5_lag_set_inner_ttc_params(ldev, &ttc_params);
+ port_sel->inner.ttc = mlx5_create_ttc_table(dev, &ttc_params);
+ if (IS_ERR(port_sel->inner.ttc))
+ return PTR_ERR(port_sel->inner.ttc);
+
+ return 0;
+}
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.h
@@ -14,6 +14,7 @@ struct mlx5_lag_definer {
};
struct mlx5_lag_ttc {
+ struct mlx5_ttc_table *ttc;
struct mlx5_lag_definer *definers[MLX5_NUM_TT];
};