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Commit f7ad75b7 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

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: default avatarStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9cbcc428

drivers/net/hyperv/hyperv_net.h

+2 −0
Original line number Diff line number Diff line
@@ -649,6 +649,8 @@ struct multi_recv_comp { 
struct netvsc_stats {

	u64 packets;

	u64 bytes;

	u64 broadcast;

	u64 multicast;

	struct u64_stats_sync syncp;

};

drivers/net/hyperv/netvsc_drv.c

+8 −1
Original line number Diff line number Diff line
@@ -705,6 +705,11 @@ int netvsc_recv_callback(struct hv_device *device_obj, 
	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 @@ static struct rtnl_link_stats64 *netvsc_get_stats64(struct net_device *net, 
							    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 @@ static struct rtnl_link_stats64 *netvsc_get_stats64(struct net_device *net, 
			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;