@@ -1000,6 +1000,28 @@ static void ice_lag_link(struct ice_lag *lag)
netdev_info(lag->netdev, "Shared SR-IOV resources in bond are active\n");
}
+/**
+ * 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 +1043,9 @@ 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;
@@ -1419,6 +1444,7 @@ 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 +1454,7 @@ 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
@@ -2368,7 +2368,9 @@ ice_xmit_frame_ring(struct sk_buff *skb, struct ice_tx_ring *tx_ring)
ICE_TXD_CTX_QW1_CMD_S);
ice_tstamp(tx_ring, skb, first, &offload);
- if (ice_is_switchdev_running(vsi->back) && vsi->type != ICE_VSI_SF)
+ if ((ice_is_switchdev_running(vsi->back) ||
+ ice_lag_is_switchdev_running(vsi->back)) &&
+ vsi->type != ICE_VSI_SF)
ice_eswitch_set_target_vsi(skb, &offload);
if (offload.cd_qw1 & ICE_TX_DESC_DTYPE_CTX) {
Ever since removing switchdev control VSI and using PF for port representor Tx/Rx, switchdev slow-path has been working improperly after failover in SR-IOV LAG. LAG assumes that the first uplink to be added to the aggregate will own VFs and have switchdev configured. After failing-over to the other uplink, representors are still configured to Tx through the uplink they are set up on, which fails because that uplink is now down. On failover, update all PRs on primary uplink to use the currently active uplink for Tx. Call netif_keep_dst(), as the secondary uplink might not be in switchdev mode. Also make sure to call ice_eswitch_set_target_vsi() if uplink is in LAG. On the Rx path, representors are already working properly, because default Tx from VFs is set to PF owning the eswitch. After failover the same PF is receiving traffic from VFs, even though link is down. Fixes: defd52455aee ("ice: do Tx through PF netdev in slow-path") Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com> --- drivers/net/ethernet/intel/ice/ice_lag.c | 27 +++++++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_txrx.c | 4 +++- 2 files changed, 30 insertions(+), 1 deletion(-)