netdev - [PATCH net-next 2/2] net/mlx5e: add mlx5e_rep_indr_setup_ft

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Message-Id: <1575972525-20046-2-git-send-email-wenxu@ucloud.cn>
Date:   Tue, 10 Dec 2019 18:08:45 +0800
From:   wenxu@...oud.cn
To:     paulb@...lanox.com
Cc:     pablo@...filter.org, netdev@...r.kernel.org
Subject: [PATCH net-next 2/2] net/mlx5e: add mlx5e_rep_indr_setup_ft_cb support

From: wenxu <wenxu@...oud.cn>

Add mlx5e_rep_indr_setup_ft_cb to support indr block setup
in FT mode.

Signed-off-by: wenxu <wenxu@...oud.cn>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 37 ++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 6f304f6..e0da17c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -748,6 +748,40 @@ 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 mlx5e_priv *mpriv = netdev_priv(priv->rpriv->netdev);
+	struct mlx5_eswitch *esw = mpriv->mdev->priv.eswitch;
+	struct flow_cls_offload *f = type_data;
+	struct flow_cls_offload cls_flower;
+	unsigned long flags;
+	int err;
+
+	flags = MLX5_TC_FLAG(EGRESS) |
+		MLX5_TC_FLAG(ESW_OFFLOAD) |
+		MLX5_TC_FLAG(FT_OFFLOAD);
+
+	switch (type) {
+	case TC_SETUP_CLSFLOWER:
+		if (!mlx5_eswitch_prios_supported(esw) || f->common.chain_index)
+			return -EOPNOTSUPP;
+
+		/* Re-use tc offload path by moving the ft flow to the
+		 * reserved ft chain.
+		 */
+		memcpy(&cls_flower, f, sizeof(*f));
+		cls_flower.common.chain_index = FDB_FT_CHAIN;
+		err = mlx5e_rep_indr_offload(priv->netdev, &cls_flower, priv,
+					     flags);
+		memcpy(&f->stats, &cls_flower.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;
@@ -825,6 +859,9 @@ 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;
 	}
-- 
1.8.3.1