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Subject[PATCH v2 net-next 08/26] mvpp2: provide .ndo_get_xdp_stats() callback
Date
Same as mvneta, mvpp2 stores 7 XDP counters in per-cpu containers.
Expose them via generic XDP stats infra.

Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
---
.../net/ethernet/marvell/mvpp2/mvpp2_main.c | 51 +++++++++++++++++++
1 file changed, 51 insertions(+)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 97bd2ee8a010..58203cde3b60 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -5131,6 +5131,56 @@ mvpp2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
stats->tx_dropped = dev->stats.tx_dropped;
}

+static int mvpp2_get_xdp_stats_ndo(const struct net_device *dev, u32 attr_id,
+ void *attr_data)
+{
+ const struct mvpp2_port *port = netdev_priv(dev);
+ struct ifla_xdp_stats *xdp_stats = attr_data;
+ u32 cpu, start;
+
+ switch (attr_id) {
+ case IFLA_XDP_XSTATS_TYPE_XDP:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ for_each_possible_cpu(cpu) {
+ const struct mvpp2_pcpu_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;
+
+ ps = per_cpu_ptr(port->stats, cpu);
+
+ do {
+ start = u64_stats_fetch_begin_irq(&ps->syncp);
+
+ xdp_redirect = ps->xdp_redirect;
+ xdp_pass = ps->xdp_pass;
+ xdp_drop = ps->xdp_drop;
+ xdp_xmit = ps->xdp_xmit;
+ xdp_xmit_err = ps->xdp_xmit_err;
+ xdp_tx = ps->xdp_tx;
+ xdp_tx_err = ps->xdp_tx_err;
+ } while (u64_stats_fetch_retry_irq(&ps->syncp, start));
+
+ xdp_stats->redirect += xdp_redirect;
+ xdp_stats->pass += xdp_pass;
+ xdp_stats->drop += xdp_drop;
+ xdp_stats->xmit_packets += xdp_xmit;
+ xdp_stats->xmit_errors += xdp_xmit_err;
+ xdp_stats->tx += xdp_tx;
+ xdp_stats->tx_errors += xdp_tx_err;
+ }
+
+ return 0;
+}
+
static int mvpp2_set_ts_config(struct mvpp2_port *port, struct ifreq *ifr)
{
struct hwtstamp_config config;
@@ -5719,6 +5769,7 @@ static const struct net_device_ops mvpp2_netdev_ops = {
.ndo_set_mac_address = mvpp2_set_mac_address,
.ndo_change_mtu = mvpp2_change_mtu,
.ndo_get_stats64 = mvpp2_get_stats64,
+ .ndo_get_xdp_stats = mvpp2_get_xdp_stats_ndo,
.ndo_eth_ioctl = mvpp2_ioctl,
.ndo_vlan_rx_add_vid = mvpp2_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = mvpp2_vlan_rx_kill_vid,
--
2.33.1
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