mvneta driver implements 7 per-cpu counters which means we can
only provide them as a global sum across CPUs.
Implement a callback for querying them using generic XDP stats
infra.
Signed-off-by: Alexander Lobakin <alexandr.lobakin@xxxxxxxxx>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@xxxxxxxxx>
---
drivers/net/ethernet/marvell/mvneta.c | 54 +++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 7c30417a0464..5bb0bbfa1ee6 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -802,6 +802,59 @@ mvneta_get_stats64(struct net_device *dev,
stats->tx_dropped = dev->stats.tx_dropped;
}
+static int mvneta_get_xdp_stats(const struct net_device *dev, u32 attr_id,
+ void *attr_data)
+{
+ const struct mvneta_port *pp = netdev_priv(dev);
+ struct ifla_xdp_stats *xdp_stats = attr_data;
+ u32 cpu;
+
+ switch (attr_id) {
+ case IFLA_XDP_XSTATS_TYPE_XDP:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ for_each_possible_cpu(cpu) {
+ const struct mvneta_pcpu_stats *stats;
+ const struct mvneta_stats *ps;
+ u64 xdp_xmit_err;
+ u64 xdp_redirect;
+ u64 xdp_tx_err;
+ u64 xdp_pass;
+ u64 xdp_drop;
+ u64 xdp_xmit;
+ u64 xdp_tx;
+ u32 start;
+
+ stats = per_cpu_ptr(pp->stats, cpu);
+ ps = &stats->es.ps;
+
+ do {
+ start = u64_stats_fetch_begin_irq(&stats->syncp);
+
+ xdp_drop = ps->xdp_drop;
+ xdp_pass = ps->xdp_pass;
+ xdp_redirect = ps->xdp_redirect;
+ xdp_tx = ps->xdp_tx;
+ xdp_tx_err = ps->xdp_tx_err;
+ xdp_xmit = ps->xdp_xmit;
+ xdp_xmit_err = ps->xdp_xmit_err;
+ } while (u64_stats_fetch_retry_irq(&stats->syncp, start));
+
+ xdp_stats->drop += xdp_drop;
+ xdp_stats->pass += xdp_pass;
+ xdp_stats->redirect += xdp_redirect;
+ xdp_stats->tx += xdp_tx;
+ xdp_stats->tx_errors += xdp_tx_err;
+ xdp_stats->xmit_packets += xdp_xmit;
+ xdp_stats->xmit_errors += xdp_xmit_err;
+ }
+
+ return 0;
+}
+
/* Rx descriptors helper methods */
/* Checks whether the RX descriptor having this status is both the first
@@ -4957,6 +5010,7 @@ static const struct net_device_ops mvneta_netdev_ops = {
.ndo_change_mtu = mvneta_change_mtu,
.ndo_fix_features = mvneta_fix_features,
.ndo_get_stats64 = mvneta_get_stats64,
+ .ndo_get_xdp_stats = mvneta_get_xdp_stats,
.ndo_eth_ioctl = mvneta_ioctl,
.ndo_bpf = mvneta_xdp,
.ndo_xdp_xmit = mvneta_xdp_xmit,
--
2.33.1
