[ovs-dev] [PATCHv11 net-next 2/2] openvswitch: Add support for unique flow IDs.

Joe Stringer joestringer at nicira.com
Wed Dec 3 18:47:26 UTC 2014


I forgot to mention that this is the first post based against net-next.

On 2 December 2014 at 18:56, Joe Stringer <joestringer at nicira.com> wrote:
> <....snip...>
> diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
> index a8b30f3..7f31dbf 100644
> --- a/net/openvswitch/flow.h
> +++ b/net/openvswitch/flow.h
> @@ -197,6 +197,13 @@ struct sw_flow_match {
>         struct sw_flow_mask *mask;
>  };
>
> +#define MAX_UFID_LENGTH 256
> +
> +struct sw_flow_id {
> +       u32 ufid_len;
> +       u32 ufid[MAX_UFID_LENGTH / 4];
> +};
> +
>  struct sw_flow_actions {
>         struct rcu_head rcu;
>         u32 actions_len;

Pravin, I changed the 'struct sw_flow_id' to the above after feedback
from the previous round, but it doesn't seem quite right. Is this what
you meant? Given that current ovs-vswitchd userspace only generates
128bit UFIDs, it seems wasteful to be allocating so much for this. Did
you have in mind for this to be united with the unmasked_key?



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