Commit 07c264ab authored by wenxu's avatar wenxu Committed by Saeed Mahameed
Browse files

net/mlx5e: add mlx5e_rep_indr_setup_ft_cb support 



Add mlx5e_rep_indr_setup_ft_cb to support indr block setup
in FT mode.
Both tc rules and flow table rules are of the same format,
It can re-use tc parsing for that, and move the flow table rules
to their steering domain(the specific chain_index), the indr
block offload in FT also follow this scenario.

Signed-off-by: default avatarwenxu <wenxu@ucloud.cn>
Reviewed-by: default avatarVlad Buslov <vladbu@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 5a37a8df

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

+49 −0
Original line number Diff line number Diff line
@@ -732,6 +732,52 @@ static int mlx5e_rep_indr_setup_tc_cb(enum tc_setup_type type, 
	}

}



static int mlx5e_rep_indr_setup_ft_cb(enum tc_setup_type type,

				      void *type_data, void *indr_priv)

{

	struct mlx5e_rep_indr_block_priv *priv = indr_priv;

	struct flow_cls_offload *f = type_data;

	struct flow_cls_offload tmp;

	struct mlx5e_priv *mpriv;

	struct mlx5_eswitch *esw;

	unsigned long flags;

	int err;



	mpriv = netdev_priv(priv->rpriv->netdev);

	esw = mpriv->mdev->priv.eswitch;



	flags = MLX5_TC_FLAG(EGRESS) |

		MLX5_TC_FLAG(ESW_OFFLOAD) |

		MLX5_TC_FLAG(FT_OFFLOAD);



	switch (type) {

	case TC_SETUP_CLSFLOWER:

		memcpy(&tmp, f, sizeof(*f));



		/* Re-use tc offload path by moving the ft flow to the

		 * reserved ft chain.

		 *

		 * FT offload can use prio range [0, INT_MAX], so we normalize

		 * it to range [1, mlx5_esw_chains_get_prio_range(esw)]

		 * as with tc, where prio 0 isn't supported.

		 *

		 * We only support chain 0 of FT offload.

		 */

		if (!mlx5_esw_chains_prios_supported(esw) ||

		    tmp.common.prio >= mlx5_esw_chains_get_prio_range(esw) ||

		    tmp.common.chain_index)

			return -EOPNOTSUPP;



		tmp.common.chain_index = mlx5_esw_chains_get_ft_chain(esw);

		tmp.common.prio++;

		err = mlx5e_rep_indr_offload(priv->netdev, &tmp, priv, flags);

		memcpy(&f->stats, &tmp.stats, sizeof(f->stats));

		return err;

	default:

		return -EOPNOTSUPP;

	}

}



static void mlx5e_rep_indr_block_unbind(void *cb_priv)

{

	struct mlx5e_rep_indr_block_priv *indr_priv = cb_priv;
@@ -809,6 +855,9 @@ int mlx5e_rep_indr_setup_cb(struct net_device *netdev, void *cb_priv, 
	case TC_SETUP_BLOCK:

		return mlx5e_rep_indr_setup_block(netdev, cb_priv, type_data,

						  mlx5e_rep_indr_setup_tc_cb);

	case TC_SETUP_FT:

		return mlx5e_rep_indr_setup_block(netdev, cb_priv, type_data,

						  mlx5e_rep_indr_setup_ft_cb);

	default:

		return -EOPNOTSUPP;

	}

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