IB/ipoib: Add multicast packets statistics

Update the multicast counter when multicast packets are received and
provide this information through ethtool support.

Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

2 files changed, 4 insertions, 1 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
index 7871379342f4..184a22f48027 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
@@ -52,7 +52,8 @@ static const struct ipoib_stats ipoib_gstrings_stats[] = {
         IPOIB_NETDEV_STAT(tx_bytes),
         IPOIB_NETDEV_STAT(tx_errors),
         IPOIB_NETDEV_STAT(rx_dropped),
-        IPOIB_NETDEV_STAT(tx_dropped)
+        IPOIB_NETDEV_STAT(tx_dropped),
+        IPOIB_NETDEV_STAT(multicast),
 };
 
 #define IPOIB_GLOBAL_STATS_LEN  ARRAY_SIZE(ipoib_gstrings_stats)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 57a9655e844d..02eda1f53a67 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -256,6 +256,8 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
 
         ++dev->stats.rx_packets;
         dev->stats.rx_bytes += skb->len;
+        if (skb->pkt_type == PACKET_MULTICAST)
+                dev->stats.multicast++;
 
         skb->dev = dev;
         if ((dev->features & NETIF_F_RXCSUM) &&