On Wed, Jun 19, 2019 at 6:15 PM Lorenzo Bianconi <
lorenzo.bianc...@redhat.com> wrote:
> Run local logical flows first if the gw router port is scheduled
> on the local chassis in order to properly manage snat traffic
>
> Tested-by: Eran Kuris <eku...@redhat.com>
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianc...@redhat.com>
>
Acked-by: Numan Siddique <nusid...@redhat.com>
Thanks
Numan
> ---
> Changes since v1:
> - add priority change in ovn-northd.8.xml
> ---
> ovn/northd/ovn-northd.8.xml | 3 ++-
> ovn/northd/ovn-northd.c | 6 ++++--
> 2 files changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/ovn/northd/ovn-northd.8.xml b/ovn/northd/ovn-northd.8.xml
> index e6417220f..a51f4a162 100644
> --- a/ovn/northd/ovn-northd.8.xml
> +++ b/ovn/northd/ovn-northd.8.xml
> @@ -2421,7 +2421,8 @@ nd_ns {
> <p>
> If the NAT rule cannot be handled in a distributed manner, then
> the flow above is only programmed on the
> - <code>redirect-chassis</code>.
> + <code>redirect-chassis</code> increasing flow priority by 128 in
> + order to be run first
> </p>
>
> <p>
> diff --git a/ovn/northd/ovn-northd.c b/ovn/northd/ovn-northd.c
> index 0b0a96a3a..fba5e6d44 100644
> --- a/ovn/northd/ovn-northd.c
> +++ b/ovn/northd/ovn-northd.c
> @@ -6566,6 +6566,7 @@ build_lrouter_flows(struct hmap *datapaths, struct
> hmap *ports,
> count_1bits(ntohl(mask)) + 1,
> ds_cstr(&match), ds_cstr(&actions));
> } else {
> + uint16_t priority = count_1bits(ntohl(mask)) + 1;
> /* Distributed router. */
> ds_clear(&match);
> ds_put_format(&match, "ip && ip4.src == %s"
> @@ -6575,6 +6576,7 @@ build_lrouter_flows(struct hmap *datapaths, struct
> hmap *ports,
> if (!distributed && od->l3redirect_port) {
> /* Flows for NAT rules that are centralized are
> only
> * programmed on the "redirect-chassis". */
> + priority += 128;
> ds_put_format(&match, " &&
> is_chassis_resident(%s)",
> od->l3redirect_port->json_key);
> }
> @@ -6589,8 +6591,8 @@ build_lrouter_flows(struct hmap *datapaths, struct
> hmap *ports,
> * nat->logical_ip with the longest mask gets a higher
> * priority. */
> ovn_lflow_add(lflows, od, S_ROUTER_OUT_SNAT,
> - count_1bits(ntohl(mask)) + 1,
> - ds_cstr(&match), ds_cstr(&actions));
> + priority, ds_cstr(&match),
> + ds_cstr(&actions));
> }
> }
>
> --
> 2.21.0
>
>
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