From f7ad75b753f386454f50044fd69edad767b69ce8 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Thu, 22 Sep 2016 16:56:35 -0700 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/net/hyperv/hyperv_net.h | 2 ++ drivers/net/hyperv/netvsc_drv.c | 9 ++++++++- 2 files changed, 10 insertions(+), 1 deletion(-) 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; -- 2.7.4