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net: enetc: report statistics counters for taprio

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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: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2023-05-30 12:19:48 +03:00 committed by David S. Miller
parent 5353599aa7
commit 4802fca8d1
1 changed files with 35 additions and 0 deletions
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35
drivers/net/ethernet/freescale/enetc/enetc_qos.c
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@ -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;
}