[PATCH 7/7] hv_netvsc: count multicast packets received
flat view
STALE3686d
From: <hidden>
Date: 2016-09-22 22:06:08
Subsystem:
hyper-v/azure core and drivers, networking drivers, the rest · Maintainers:
Haiyang Zhang, Wei Liu, Dexuan Cui, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Stephen Hemminger <redacted> Useful for debugging issues with multicast and SR-IOV to keep track of number of received multicast packets. Signed-off-by: Stephen Hemminger <redacted> --- drivers/net/hyperv/hyperv_net.h | 2 ++ drivers/net/hyperv/netvsc_drv.c | 9 ++++++++- 2 files changed, 10 insertions(+), 1 deletions(-)
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 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 9375d82..52eeb2f 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;
--
1.7.4.1