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openvswitch: Consistently include VLAN header in flow and port stats. 

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 <mshindo@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Reviewed-by: Flavio Leitner <fbl@sysclose.org>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Pfaff 2014-12-31 08:45:46 -08:00 committed by David S. Miller
parent 843925f33f
commit 24cc59d1eb
2 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
net/openvswitch/flow.c
View File

@ -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);

2
net/openvswitch/vport.c
View File

@ -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;