Until now, when VLAN acceleration was in use, the bytes of the VLAN header
were not included in port or flow byte counters.  They were however
included when VLAN acceleration was not used.  This commit corrects the
inconsistency, by always including the VLAN header in byte counters.

Previous discussion at
http://openvswitch.org/pipermail/dev/2014-December/049521.html

Reported-by: Motonori Shindo <mshi...@vmware.com>
Signed-off-by: Ben Pfaff <b...@nicira.com>
---
 net/openvswitch/flow.c  | 5 +++--
 net/openvswitch/vport.c | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 70bef2a..da2fae0 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -70,6 +70,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 
tcp_flags,
 {
        struct flow_stats *stats;
        int node = numa_node_id();
+       int len = skb->len + (vlan_tx_tag_present(skb) ? VLAN_HLEN : 0);
 
        stats = rcu_dereference(flow->stats[node]);
 
@@ -105,7 +106,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 
tcp_flags,
                                if (likely(new_stats)) {
                                        new_stats->used = jiffies;
                                        new_stats->packet_count = 1;
-                                       new_stats->byte_count = skb->len;
+                                       new_stats->byte_count = len;
                                        new_stats->tcp_flags = tcp_flags;
                                        spin_lock_init(&new_stats->lock);
 
@@ -120,7 +121,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 
tcp_flags,
 
        stats->used = jiffies;
        stats->packet_count++;
-       stats->byte_count += skb->len;
+       stats->byte_count += len;
        stats->tcp_flags |= tcp_flags;
 unlock:
        spin_unlock(&stats->lock);
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 53f3ebb..2034c6d 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -480,7 +480,7 @@ void ovs_vport_receive(struct vport *vport, struct sk_buff 
*skb,
        stats = this_cpu_ptr(vport->percpu_stats);
        u64_stats_update_begin(&stats->syncp);
        stats->rx_packets++;
-       stats->rx_bytes += skb->len;
+       stats->rx_bytes += skb->len + (vlan_tx_tag_present(skb) ? VLAN_HLEN : 
0);
        u64_stats_update_end(&stats->syncp);
 
        OVS_CB(skb)->input_vport = vport;
-- 
2.1.3

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