netdev - [PATCH net-next 3/4] ice: Deduplicate tc action setup

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Message-ID: <20240506170827.948682-4-anthony.l.nguyen@intel.com>
Date: Mon,  6 May 2024 10:08:24 -0700
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	netdev@...r.kernel.org
Cc: Marcin Szycik <marcin.szycik@...ux.intel.com>,
	anthony.l.nguyen@...el.com,
	Mateusz Polchlopek <mateusz.polchlopek@...el.com>,
	Simon Horman <horms@...nel.org>,
	Sujai Buvaneswaran <sujai.buvaneswaran@...el.com>
Subject: [PATCH net-next 3/4] ice: Deduplicate tc action setup

From: Marcin Szycik <marcin.szycik@...ux.intel.com>

ice_tc_setup_redirect_action() and ice_tc_setup_mirror_action() are almost
identical, except for setting filter action. Reduce them to one function
with an extra param, which handles both cases.

Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@...el.com>
Signed-off-by: Marcin Szycik <marcin.szycik@...ux.intel.com>
Reviewed-by: Simon Horman <horms@...nel.org>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_tc_lib.c | 56 ++++++---------------
 1 file changed, 15 insertions(+), 41 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_tc_lib.c b/drivers/net/ethernet/intel/ice/ice_tc_lib.c
index 4d8f808f4898..8553c56dc95d 100644
--- a/drivers/net/ethernet/intel/ice/ice_tc_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_tc_lib.c
@@ -669,13 +669,19 @@ static bool ice_tc_is_dev_uplink(struct net_device *dev)
 	return netif_is_ice(dev) || ice_is_tunnel_supported(dev);
 }
 
-static int ice_tc_setup_redirect_action(struct net_device *filter_dev,
-					struct ice_tc_flower_fltr *fltr,
-					struct net_device *target_dev)
+static int ice_tc_setup_action(struct net_device *filter_dev,
+			       struct ice_tc_flower_fltr *fltr,
+			       struct net_device *target_dev,
+			       enum ice_sw_fwd_act_type action)
 {
 	struct ice_repr *repr;
 
-	fltr->action.fltr_act = ICE_FWD_TO_VSI;
+	if (action != ICE_FWD_TO_VSI && action != ICE_MIRROR_PACKET) {
+		NL_SET_ERR_MSG_MOD(fltr->extack, "Unsupported action to setup provided");
+		return -EINVAL;
+	}
+
+	fltr->action.fltr_act = action;
 
 	if (ice_is_port_repr_netdev(filter_dev) &&
 	    ice_is_port_repr_netdev(target_dev)) {
@@ -723,41 +729,6 @@ ice_tc_setup_drop_action(struct net_device *filter_dev,
 	return 0;
 }
 
-static int ice_tc_setup_mirror_action(struct net_device *filter_dev,
-				      struct ice_tc_flower_fltr *fltr,
-				      struct net_device *target_dev)
-{
-	struct ice_repr *repr;
-
-	fltr->action.fltr_act = ICE_MIRROR_PACKET;
-
-	if (ice_is_port_repr_netdev(filter_dev) &&
-	    ice_is_port_repr_netdev(target_dev)) {
-		repr = ice_netdev_to_repr(target_dev);
-
-		fltr->dest_vsi = repr->src_vsi;
-		fltr->direction = ICE_ESWITCH_FLTR_EGRESS;
-	} else if (ice_is_port_repr_netdev(filter_dev) &&
-		   ice_tc_is_dev_uplink(target_dev)) {
-		repr = ice_netdev_to_repr(filter_dev);
-
-		fltr->dest_vsi = repr->src_vsi->back->eswitch.uplink_vsi;
-		fltr->direction = ICE_ESWITCH_FLTR_EGRESS;
-	} else if (ice_tc_is_dev_uplink(filter_dev) &&
-		   ice_is_port_repr_netdev(target_dev)) {
-		repr = ice_netdev_to_repr(target_dev);
-
-		fltr->dest_vsi = repr->src_vsi;
-		fltr->direction = ICE_ESWITCH_FLTR_INGRESS;
-	} else {
-		NL_SET_ERR_MSG_MOD(fltr->extack,
-				   "Unsupported netdevice in switchdev mode");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
 static int ice_eswitch_tc_parse_action(struct net_device *filter_dev,
 				       struct ice_tc_flower_fltr *fltr,
 				       struct flow_action_entry *act)
@@ -773,16 +744,19 @@ static int ice_eswitch_tc_parse_action(struct net_device *filter_dev,
 		break;
 
 	case FLOW_ACTION_REDIRECT:
-		err = ice_tc_setup_redirect_action(filter_dev, fltr, act->dev);
+		err = ice_tc_setup_action(filter_dev, fltr,
+					  act->dev, ICE_FWD_TO_VSI);
 		if (err)
 			return err;
 
 		break;
 
 	case FLOW_ACTION_MIRRED:
-		err = ice_tc_setup_mirror_action(filter_dev, fltr, act->dev);
+		err = ice_tc_setup_action(filter_dev, fltr,
+					  act->dev, ICE_MIRROR_PACKET);
 		if (err)
 			return err;
+
 		break;
 
 	default:
-- 
2.41.0