hv_netvsc: count multicast packets received
Useful for debugging issues with multicast and SR-IOV to keep track
of number of received multicast packets.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 1d49740..7130bf9 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -649,6 +649,8 @@
struct netvsc_stats {
u64 packets;
u64 bytes;
+ u64 broadcast;
+ u64 multicast;
struct u64_stats_sync syncp;
};
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 9375d82..52eeb2f 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -705,6 +705,11 @@
u64_stats_update_begin(&rx_stats->syncp);
rx_stats->packets++;
rx_stats->bytes += packet->total_data_buflen;
+
+ if (skb->pkt_type == PACKET_BROADCAST)
+ ++rx_stats->broadcast;
+ else if (skb->pkt_type == PACKET_MULTICAST)
+ ++rx_stats->multicast;
u64_stats_update_end(&rx_stats->syncp);
/*
@@ -947,7 +952,7 @@
cpu);
struct netvsc_stats *rx_stats = per_cpu_ptr(ndev_ctx->rx_stats,
cpu);
- u64 tx_packets, tx_bytes, rx_packets, rx_bytes;
+ u64 tx_packets, tx_bytes, rx_packets, rx_bytes, rx_multicast;
unsigned int start;
do {
@@ -960,12 +965,14 @@
start = u64_stats_fetch_begin_irq(&rx_stats->syncp);
rx_packets = rx_stats->packets;
rx_bytes = rx_stats->bytes;
+ rx_multicast = rx_stats->multicast + rx_stats->broadcast;
} while (u64_stats_fetch_retry_irq(&rx_stats->syncp, start));
t->tx_bytes += tx_bytes;
t->tx_packets += tx_packets;
t->rx_bytes += rx_bytes;
t->rx_packets += rx_packets;
+ t->multicast += rx_multicast;
}
t->tx_dropped = net->stats.tx_dropped;