sh_eth: Implement multicast statistic based on the RFS8 status bit

At least on the R8A7790, RFS8 reflects the RINT8 (multicast) MAC
status flag.

Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 736d5d1624a142e902d6023cf3ee801c5169fa14..8e35ccba6259fff1ca2123eb81ae733cf50752b9 100644 (file)
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1500,6 +1500,8 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
                        netif_receive_skb(skb);
                        ndev->stats.rx_packets++;
                        ndev->stats.rx_bytes += pkt_len;
+                       if (desc_status & RD_RFS8)
+                               ndev->stats.multicast++;
                }
                entry = (++mdp->cur_rx) % mdp->num_rx_ring;
                rxdesc = &mdp->rx_ring[entry];