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Message-Id: <1585138739-8443-3-git-send-email-wenxu@ucloud.cn>
Date: Wed, 25 Mar 2020 20:18:59 +0800
From: wenxu@...oud.cn
To: saeedm@...lanox.com
Cc: paulb@...lanox.com, vladbu@...lanox.com, netdev@...r.kernel.org
Subject: [PATCH net-next v8 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.
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: wenxu <wenxu@...oud.cn>
---
v7: combine all the checks in
single if statement
v8: no change
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 49 ++++++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 057f5f9..7ddef16 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -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;
}
--
1.8.3.1
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