1 files changed, 79 insertions, 3 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_lag.c b/drivers/net/ethernet/intel/ice/ice_lag.c
index 1ccb572ce285..b1129da72139 100644
--- a/drivers/net/ethernet/intel/ice/ice_lag.c
+++ b/drivers/net/ethernet/intel/ice/ice_lag.c
@@ -823,6 +823,48 @@ cp_free:
 }
 
 /**
+ * ice_lag_prepare_vf_reset - helper to adjust vf lag for reset
+ * @lag: lag struct for interface that owns VF
+ *
+ * Context: must be called with the lag_mutex lock held.
+ *
+ * Return: active lport value or ICE_LAG_INVALID_PORT if nothing moved.
+ */
+u8 ice_lag_prepare_vf_reset(struct ice_lag *lag)
+{
+	u8 pri_prt, act_prt;
+
+	if (lag && lag->bonded && lag->primary && lag->upper_netdev) {
+		pri_prt = lag->pf->hw.port_info->lport;
+		act_prt = lag->active_port;
+		if (act_prt != pri_prt && act_prt != ICE_LAG_INVALID_PORT) {
+			ice_lag_move_vf_nodes_cfg(lag, act_prt, pri_prt);
+			return act_prt;
+		}
+	}
+
+	return ICE_LAG_INVALID_PORT;
+}
+
+/**
+ * ice_lag_complete_vf_reset - helper for lag after reset
+ * @lag: lag struct for primary interface
+ * @act_prt: which port should be active for lag
+ *
+ * Context: must be called while holding the lag_mutex.
+ */
+void ice_lag_complete_vf_reset(struct ice_lag *lag, u8 act_prt)
+{
+	u8 pri_prt;
+
+	if (lag && lag->bonded && lag->primary &&
+	    act_prt != ICE_LAG_INVALID_PORT) {
+		pri_prt = lag->pf->hw.port_info->lport;
+		ice_lag_move_vf_nodes_cfg(lag, pri_prt, act_prt);
+	}
+}
+
+/**
  * ice_lag_info_event - handle NETDEV_BONDING_INFO event
  * @lag: LAG info struct
  * @ptr: opaque data pointer
@@ -1001,6 +1043,28 @@ static void ice_lag_link(struct ice_lag *lag)
 }
 
 /**
+ * ice_lag_config_eswitch - configure eswitch to work with LAG
+ * @lag: lag info struct
+ * @netdev: active network interface device struct
+ *
+ * Updates all port representors in eswitch to use @netdev for Tx.
+ *
+ * Configures the netdev to keep dst metadata (also used in representor Tx).
+ * This is required for an uplink without switchdev mode configured.
+ */
+static void ice_lag_config_eswitch(struct ice_lag *lag,
+				   struct net_device *netdev)
+{
+	struct ice_repr *repr;
+	unsigned long id;
+
+	xa_for_each(&lag->pf->eswitch.reprs, id, repr)
+		repr->dst->u.port_info.lower_dev = netdev;
+
+	netif_keep_dst(netdev);
+}
+
+/**
  * ice_lag_unlink - handle unlink event
  * @lag: LAG info struct
  */
@@ -1021,6 +1085,9 @@ static void ice_lag_unlink(struct ice_lag *lag)
 			ice_lag_move_vf_nodes(lag, act_port, pri_port);
 		lag->primary = false;
 		lag->active_port = ICE_LAG_INVALID_PORT;
+
+		/* Config primary's eswitch back to normal operation. */
+		ice_lag_config_eswitch(lag, lag->netdev);
 	} else {
 		struct ice_lag *primary_lag;
 
@@ -1077,7 +1144,7 @@ ice_lag_set_swid(u16 primary_swid, struct ice_lag *local_lag,
 {
 	struct ice_aqc_alloc_free_res_elem *buf;
 	struct ice_aqc_set_port_params *cmd;
-	struct ice_aq_desc desc;
+	struct libie_aq_desc desc;
 	u16 buf_len, swid;
 	int status, i;
 
@@ -1125,7 +1192,7 @@ ice_lag_set_swid(u16 primary_swid, struct ice_lag *local_lag,
 	else
 		swid = local_lag->pf->hw.port_info->sw_id;
 
-	cmd = &desc.params.set_port_params;
+	cmd = libie_aq_raw(&desc);
 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_port_params);
 
 	cmd->swid = cpu_to_le16(ICE_AQC_PORT_SWID_VALID | swid);
@@ -1296,12 +1363,18 @@ static void ice_lag_changeupper_event(struct ice_lag *lag, void *ptr)
 		 */
 		if (!primary_lag) {
 			lag->primary = true;
+			if (!ice_is_switchdev_running(lag->pf))
+				return;
+
 			/* Configure primary's SWID to be shared */
 			ice_lag_primary_swid(lag, true);
 			primary_lag = lag;
 		} else {
 			u16 swid;
 
+			if (!ice_is_switchdev_running(primary_lag->pf))
+				return;
+
 			swid = primary_lag->pf->hw.port_info->sw_id;
 			ice_lag_set_swid(swid, lag, true);
 			ice_lag_add_prune_list(primary_lag, lag->pf);
@@ -1419,6 +1492,7 @@ static void ice_lag_monitor_active(struct ice_lag *lag, void *ptr)
 				ice_lag_move_vf_nodes(lag, prim_port,
 						      event_port);
 			lag->active_port = event_port;
+			ice_lag_config_eswitch(lag, event_netdev);
 			return;
 		}
 
@@ -1428,6 +1502,7 @@ static void ice_lag_monitor_active(struct ice_lag *lag, void *ptr)
 		/* new active port */
 		ice_lag_move_vf_nodes(lag, lag->active_port, event_port);
 		lag->active_port = event_port;
+		ice_lag_config_eswitch(lag, event_netdev);
 	} else {
 		/* port not set as currently active (e.g. new active port
 		 * has already claimed the nodes and filters
@@ -2193,7 +2268,8 @@ bool ice_lag_is_switchdev_running(struct ice_pf *pf)
 	struct ice_lag *lag = pf->lag;
 	struct net_device *tmp_nd;
 
-	if (!ice_is_feature_supported(pf, ICE_F_SRIOV_LAG) || !lag)
+	if (!ice_is_feature_supported(pf, ICE_F_SRIOV_LAG) ||
+	    !lag || !lag->upper_netdev)
 		return false;
 
 	rcu_read_lock();