Commit 4802fca8 authored by Vladimir Oltean's avatar Vladimir Oltean Committed by David S. Miller
Browse files

net: enetc: report statistics counters for taprio 



Report the "win_drop" counter from the unstructured ethtool -S as
TCA_TAPRIO_OFFLOAD_STATS_WINDOW_DROPS to the Qdisc layer. It is
available both as a global counter as well as a per-TC one.

Signed-off-by: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5353599a

drivers/net/ethernet/freescale/enetc/enetc_qos.c

+35 −0
Original line number Diff line number Diff line
@@ -147,6 +147,35 @@ static void enetc_taprio_destroy(struct net_device *ndev) 
	enetc_reset_tc_mqprio(ndev);

}



static void enetc_taprio_stats(struct net_device *ndev,

			       struct tc_taprio_qopt_stats *stats)

{

	struct enetc_ndev_priv *priv = netdev_priv(ndev);

	u64 window_drops = 0;

	int i;



	for (i = 0; i < priv->num_tx_rings; i++)

		window_drops += priv->tx_ring[i]->stats.win_drop;



	stats->window_drops = window_drops;

}



static void enetc_taprio_tc_stats(struct net_device *ndev,

				  struct tc_taprio_qopt_tc_stats *tc_stats)

{

	struct tc_taprio_qopt_stats *stats = &tc_stats->stats;

	struct enetc_ndev_priv *priv = netdev_priv(ndev);

	int tc = tc_stats->tc;

	u64 window_drops = 0;

	int i;



	for (i = 0; i < priv->num_tx_rings; i++)

		if (priv->tx_ring[i]->prio == tc)

			window_drops += priv->tx_ring[i]->stats.win_drop;



	stats->window_drops = window_drops;

}



static int enetc_taprio_replace(struct net_device *ndev,

				struct tc_taprio_qopt_offload *offload)

{
@@ -176,6 +205,12 @@ int enetc_setup_tc_taprio(struct net_device *ndev, void *type_data) 
	case TAPRIO_CMD_DESTROY:

		enetc_taprio_destroy(ndev);

		break;

	case TAPRIO_CMD_STATS:

		enetc_taprio_stats(ndev, &offload->stats);

		break;

	case TAPRIO_CMD_TC_STATS:

		enetc_taprio_tc_stats(ndev, &offload->tc_stats);

		break;

	default:

		err = -EOPNOTSUPP;

	}