[ovs-dev] [PATCH v3 03/10] datapath: Use TCP flags in the flow key for stats.

Pravin Shelar pshelar at nicira.com
Fri Mar 21 21:41:22 UTC 2014


On Fri, Feb 21, 2014 at 11:41 AM, Jarno Rajahalme <jrajahalme at nicira.com> wrote:
> We already extract the TCP flags for the key, might as well use that
> for stats.
>
> Signed-off-by: Jarno Rajahalme <jrajahalme at nicira.com>
Looks good.
Acked-by: Pravin B Shelar <pshelar at nicira.com>

> ---
>  datapath/flow.c |   12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
>
> diff --git a/datapath/flow.c b/datapath/flow.c
> index c3e3fcb..3cc4cdf 100644
> --- a/datapath/flow.c
> +++ b/datapath/flow.c
> @@ -70,14 +70,12 @@ void ovs_flow_stats_update(struct sw_flow *flow, struct sk_buff *skb)
>
>         stats = rcu_dereference(flow->stats[node]);
>
> -       if ((flow->key.eth.type == htons(ETH_P_IP) ||
> -            flow->key.eth.type == htons(ETH_P_IPV6)) &&
> -           flow->key.ip.frag != OVS_FRAG_TYPE_LATER &&
> -           flow->key.ip.proto == IPPROTO_TCP &&
> -           likely(skb->len >= skb_transport_offset(skb) + sizeof(struct tcphdr))) {
> -               tcp_flags = TCP_FLAGS_BE16(tcp_hdr(skb));
> +       if (likely(flow->key.ip.proto == IPPROTO_TCP)) {
> +               if (likely(flow->key.eth.type == htons(ETH_P_IP)))
> +                       tcp_flags = flow->key.ipv4.tp.flags;
> +               else if (likely(flow->key.eth.type == htons(ETH_P_IPV6)))
> +                       tcp_flags = flow->key.ipv6.tp.flags;
>         }
> -
>         /* Check if already have node-specific stats. */
>         if (likely(stats)) {
>                 spin_lock(&stats->lock);
> --
> 1.7.10.4
>
> _______________________________________________
> dev mailing list
> dev at openvswitch.org
> http://openvswitch.org/mailman/listinfo/dev



More information about the dev mailing list