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authorStephen Hemminger <sthemmin@microsoft.com>2016-09-23 02:56:35 +0300
committerDavid S. Miller <davem@davemloft.net>2016-09-23 15:39:49 +0300
commitf7ad75b753f386454f50044fd69edad767b69ce8 (patch)
treec8dc065962c44292584cd7c48e8d6bcaeb613bb3 /drivers/net
parent9cbcc4280645f0e7e19e6a0da443ec7e69cecf40 (diff)
downloadlinux-f7ad75b753f386454f50044fd69edad767b69ce8.tar.xz
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>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/hyperv/hyperv_net.h2
-rw-r--r--drivers/net/hyperv/netvsc_drv.c9
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 1d4974026eff..7130bf910f52 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -649,6 +649,8 @@ struct multi_recv_comp {
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 9375d82702ce..52eeb2f67276 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -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;