netdev - [net-next 13/15] net/mlx5e: TC, Extract indr setup block checks to function

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Date:   Mon, 13 Mar 2023 22:42:32 -0700
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
        Tariq Toukan <tariqt@...dia.com>,
        Maor Dickman <maord@...dia.com>, Roi Dayan <roid@...dia.com>
Subject: [net-next 13/15] net/mlx5e: TC, Extract indr setup block checks to function

From: Maor Dickman <maord@...dia.com>

In preparation for next patch which will add new check
if device block can be setup, extract all existing checks
to function to make it more readable and maintainable.

Signed-off-by: Maor Dickman <maord@...dia.com>
Reviewed-by: Roi Dayan <roid@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../ethernet/mellanox/mlx5/core/en/rep/tc.c   | 58 ++++++++++++-------
 1 file changed, 36 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
index 8f7452dc00ee..b4af006dc494 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
@@ -426,39 +426,53 @@ static bool mlx5e_rep_macvlan_mode_supported(const struct net_device *dev)
 	return macvlan->mode == MACVLAN_MODE_PASSTHRU;
 }
 
-static int
-mlx5e_rep_indr_setup_block(struct net_device *netdev, struct Qdisc *sch,
-			   struct mlx5e_rep_priv *rpriv,
-			   struct flow_block_offload *f,
-			   flow_setup_cb_t *setup_cb,
-			   void *data,
-			   void (*cleanup)(struct flow_block_cb *block_cb))
+static bool
+mlx5e_rep_check_indr_block_supported(struct mlx5e_rep_priv *rpriv,
+				     struct net_device *netdev,
+				     struct flow_block_offload *f)
 {
 	struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
 	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
-	bool is_ovs_int_port = netif_is_ovs_master(netdev);
-	struct mlx5e_rep_indr_block_priv *indr_priv;
-	struct flow_block_cb *block_cb;
 
-	if (!mlx5e_tc_tun_device_to_offload(priv, netdev) &&
-	    !(is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) == rpriv->netdev) &&
-	    !is_ovs_int_port) {
-		if (!(netif_is_macvlan(netdev) && macvlan_dev_real_dev(netdev) == rpriv->netdev))
-			return -EOPNOTSUPP;
+	if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS &&
+	    f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS)
+		return false;
+
+	if (mlx5e_tc_tun_device_to_offload(priv, netdev))
+		return true;
+
+	if (is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) == rpriv->netdev)
+		return true;
+
+	if (netif_is_macvlan(netdev)) {
 		if (!mlx5e_rep_macvlan_mode_supported(netdev)) {
 			netdev_warn(netdev, "Offloading ingress filter is supported only with macvlan passthru mode");
-			return -EOPNOTSUPP;
+			return false;
 		}
+
+		if (macvlan_dev_real_dev(netdev) == rpriv->netdev)
+			return true;
 	}
 
-	if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS &&
-	    f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS)
-		return -EOPNOTSUPP;
+	if (netif_is_ovs_master(netdev) && f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS &&
+	    mlx5e_tc_int_port_supported(esw))
+		return true;
 
-	if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS && !is_ovs_int_port)
-		return -EOPNOTSUPP;
+	return false;
+}
+
+static int
+mlx5e_rep_indr_setup_block(struct net_device *netdev, struct Qdisc *sch,
+			   struct mlx5e_rep_priv *rpriv,
+			   struct flow_block_offload *f,
+			   flow_setup_cb_t *setup_cb,
+			   void *data,
+			   void (*cleanup)(struct flow_block_cb *block_cb))
+{
+	struct mlx5e_rep_indr_block_priv *indr_priv;
+	struct flow_block_cb *block_cb;
 
-	if (is_ovs_int_port && !mlx5e_tc_int_port_supported(esw))
+	if (!mlx5e_rep_check_indr_block_supported(rpriv, netdev, f))
 		return -EOPNOTSUPP;
 
 	f->unlocked_driver_cb = true;
-- 
2.39.2