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hv_netvsc: count multicast packets received

Browse source 
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>
This commit is contained in:
Stephen Hemminger 2016-09-22 16:56:35 -07:00 committed by David S. Miller
parent 9cbcc42806
commit f7ad75b753
2 changed files with 10 additions and 1 deletions
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2
drivers/net/hyperv/hyperv_net.h
View file

@ -649,6 +649,8 @@ struct multi_recv_comp {
struct netvsc_stats {
u64 packets;
u64 bytes;
u64 broadcast;
u64 multicast;
struct u64_stats_sync syncp;
};

9
drivers/net/hyperv/netvsc_drv.c
View file

@ -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;