net: mvneta: add support for page_pool_get_stats

Introduce support for the page_pool stats API into mvneta driver.
Report page_pool stats through ethtool.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/Kconfig b/drivers/net/ethernet/marvell/Kconfig
index 4cb5572..f58a1c0 100644 (file)
--- a/drivers/net/ethernet/marvell/Kconfig
+++ b/drivers/net/ethernet/marvell/Kconfig
@@ -62,6 +62,7 @@ config MVNETA
        select MVMDIO
        select PHYLINK
        select PAGE_POOL
+       select PAGE_POOL_STATS
        help
          This driver supports the network interface units in the
          Marvell ARMADA XP, ARMADA 370, ARMADA 38x and

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 934f6dd..f6a54c7 100644 (file)
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -4735,6 +4735,9 @@ static void mvneta_ethtool_get_strings(struct net_device *netdev, u32 sset,
                for (i = 0; i < ARRAY_SIZE(mvneta_statistics); i++)
                        memcpy(data + i * ETH_GSTRING_LEN,
                               mvneta_statistics[i].name, ETH_GSTRING_LEN);
+
+               data += ETH_GSTRING_LEN * ARRAY_SIZE(mvneta_statistics);
+               page_pool_ethtool_stats_get_strings(data);
        }
 }
 
@@ -4847,6 +4850,17 @@ static void mvneta_ethtool_update_stats(struct mvneta_port *pp)
        }
 }
 
+static void mvneta_ethtool_pp_stats(struct mvneta_port *pp, u64 *data)
+{
+       struct page_pool_stats stats = {};
+       int i;
+
+       for (i = 0; i < rxq_number; i++)
+               page_pool_get_stats(pp->rxqs[i].page_pool, &stats);
+
+       page_pool_ethtool_stats_get(data, &stats);
+}
+
 static void mvneta_ethtool_get_stats(struct net_device *dev,
                                     struct ethtool_stats *stats, u64 *data)
 {
@@ -4857,12 +4871,16 @@ static void mvneta_ethtool_get_stats(struct net_device *dev,
 
        for (i = 0; i < ARRAY_SIZE(mvneta_statistics); i++)
                *data++ = pp->ethtool_stats[i];
+
+       mvneta_ethtool_pp_stats(pp, data);
 }
 
 static int mvneta_ethtool_get_sset_count(struct net_device *dev, int sset)
 {
        if (sset == ETH_SS_STATS)
-               return ARRAY_SIZE(mvneta_statistics);
+               return ARRAY_SIZE(mvneta_statistics) +
+                      page_pool_ethtool_stats_get_count();
+
        return -EOPNOTSUPP;
 }