From 7768d1971de676b0e12f57450ba7a6b38ff4cfb2 Mon Sep 17 00:00:00 2001 From: Roi Dayan Date: Sun, 25 Sep 2016 14:27:17 +0300 Subject: net/mlx5: E-Switch, Add control for encapsulation Implement the devlink e-switch encapsulation control set and get callbacks. Apply the value set by the user on the switchdev offloads mode when creating the fast FDB table where offloaded rules will be set. Signed-off-by: Roi Dayan Reviewed-by: Or Gerlitz Signed-off-by: Saeed Mahameed --- .../ethernet/mellanox/mlx5/core/eswitch_offloads.c | 63 +++++++++++++++++++++- 1 file changed, 61 insertions(+), 2 deletions(-) (limited to 'drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index ce3a2c040706..189d24dbd3e3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -450,8 +450,7 @@ static int esw_create_offloads_fast_fdb_table(struct mlx5_eswitch *esw) esw_size = min_t(int, MLX5_CAP_GEN(dev, max_flow_counter) * ESW_OFFLOADS_NUM_GROUPS, 1 << MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size)); - if (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, encap) && - MLX5_CAP_ESW_FLOWTABLE_FDB(dev, decap)) + if (esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE) flags |= MLX5_FLOW_TABLE_TUNNEL_EN; fdb = mlx5_create_auto_grouped_flow_table(root_ns, FDB_FAST_PATH, @@ -1045,6 +1044,66 @@ int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, int nvfs, u8 *mode) return 0; } +int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink, u8 encap) +{ + struct mlx5_core_dev *dev = devlink_priv(devlink); + struct mlx5_eswitch *esw = dev->priv.eswitch; + int err; + + if (!MLX5_CAP_GEN(dev, vport_group_manager)) + return -EOPNOTSUPP; + + if (esw->mode == SRIOV_NONE) + return -EOPNOTSUPP; + + if (encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE && + (!MLX5_CAP_ESW_FLOWTABLE_FDB(dev, encap) || + !MLX5_CAP_ESW_FLOWTABLE_FDB(dev, decap))) + return -EOPNOTSUPP; + + if (encap && encap != DEVLINK_ESWITCH_ENCAP_MODE_BASIC) + return -EOPNOTSUPP; + + if (esw->mode == SRIOV_LEGACY) { + esw->offloads.encap = encap; + return 0; + } + + if (esw->offloads.encap == encap) + return 0; + + if (esw->offloads.num_flows > 0) { + esw_warn(dev, "Can't set encapsulation when flows are configured\n"); + return -EOPNOTSUPP; + } + + esw_destroy_offloads_fast_fdb_table(esw); + + esw->offloads.encap = encap; + err = esw_create_offloads_fast_fdb_table(esw); + if (err) { + esw_warn(esw->dev, "Failed re-creating fast FDB table, err %d\n", err); + esw->offloads.encap = !encap; + (void) esw_create_offloads_fast_fdb_table(esw); + } + return err; +} + +int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink, u8 *encap) +{ + struct mlx5_core_dev *dev = devlink_priv(devlink); + struct mlx5_eswitch *esw = dev->priv.eswitch; + + if (!MLX5_CAP_GEN(dev, vport_group_manager)) + return -EOPNOTSUPP; + + if (esw->mode == SRIOV_NONE) + return -EOPNOTSUPP; + + *encap = esw->offloads.encap; + return 0; +} + void mlx5_eswitch_register_vport_rep(struct mlx5_eswitch *esw, int vport_index, struct mlx5_eswitch_rep *__rep) -- cgit v1.2.3-55-g7522