On Wed, Feb 19, 2025 at 10:06 AM Mark Michelson <[email protected]> wrote:
>
> Thanks Xavier and Ales,
>
> I merged this to main, branch-25.03, and branch-24.09. I'll review the
> branch-24.03 version and ack/merge it if it passes muster.
>

Hi Xavier,

The multi node test job is failing after this patch.  Looks like the
test case "Migration of container ports"
is failing.  Can you please take a look ?

https://github.com/ovn-org/ovn/actions/workflows/ovn-fake-multinode-tests.yml

Thanks
Numan

> On 2/18/25 09:34, Ales Musil wrote:
> >
> >
> > On Tue, Feb 18, 2025 at 10:42 AM Xavier Simonart <[email protected]
> > <mailto:[email protected]>> wrote:
> >
> >     Handle container ports migration in a similar way as vif migration.
> >     When a container port is migrated (i.e. when requested-chassis is
> >     configured
> >     for its parent port), install flows in both src and dst hypervisors.
> >     When migration completes, remove flows from src hypervisor.
> >
> >     Reported-at: https://issues.redhat.com/browse/FDP-1037
> >     <https://issues.redhat.com/browse/FDP-1037>
> >
> >     Signed-off-by: Xavier Simonart <[email protected]
> >     <mailto:[email protected]>>
> >
> >     ---
> >     v2: - Updated based on Ales' and Mark's feedback i.e.
> >            - updated/fixed comments in tests.
> >            - remove changes independent of the patch.
> >          - Fixed typo in test (of_hv1 used instead of $of_hv2).
> >     ---
> >       controller/binding.c  |  39 ++++---
> >       controller/physical.c |   4 +-
> >       tests/multinode.at <http://multinode.at>    | 255
> >     ++++++++++++++++++++++++++++++++++++++++++
> >       tests/ovn.at <http://ovn.at>          | 160 +++++++++++++++++++++++++-
> >       4 files changed, 440 insertions(+), 18 deletions(-)
> >
> >     diff --git a/controller/binding.c b/controller/binding.c
> >     index 7d4143008..790c6d89e 100644
> >     --- a/controller/binding.c
> >     +++ b/controller/binding.c
> >     @@ -1357,9 +1357,9 @@ claim_lport(const struct sbrec_port_binding *pb,
> >                   bool sb_readonly, bool is_vif,
> >                   struct hmap *tracked_datapaths,
> >                   struct if_status_mgr *if_mgr,
> >     -            struct sset *postponed_ports)
> >     +            struct sset *postponed_ports,
> >     +            enum can_bind can_bind)
> >       {
> >     -    enum can_bind can_bind =
> >     lport_can_bind_on_this_chassis(chassis_rec, pb);
> >           bool update_tracked = false;
> >
> >           if (can_bind == CAN_BIND_AS_MAIN) {
> >     @@ -1561,7 +1561,7 @@ release_binding_lport(const struct
> >     sbrec_chassis *chassis_rec,
> >
> >       static bool
> >       consider_vif_lport_(const struct sbrec_port_binding *pb,
> >     -                    bool can_bind,
> >     +                    enum can_bind can_bind,
> >                           struct binding_ctx_in *b_ctx_in,
> >                           struct binding_ctx_out *b_ctx_out,
> >                           struct binding_lport *b_lport)
> >     @@ -1579,7 +1579,7 @@ consider_vif_lport_(const struct
> >     sbrec_port_binding *pb,
> >                                    !b_ctx_in->ovnsb_idl_txn,
> >                                    !parent_pb,
> >     b_ctx_out->tracked_dp_bindings,
> >                                    b_ctx_out->if_mgr,
> >     -                             b_ctx_out->postponed_ports)) {
> >     +                             b_ctx_out->postponed_ports, can_bind)) {
> >                       return false;
> >                   }
> >
> >     @@ -1632,8 +1632,15 @@ consider_vif_lport_(const struct
> >     sbrec_port_binding *pb,
> >                                        b_ctx_out->if_mgr);
> >               }
> >           }
> >     +
> >     +    struct binding_lport *parent_b_lport = b_lport &&
> >     b_lport->lbinding ?
> >     +        local_binding_get_primary_lport(b_lport->lbinding) : NULL;
> >     +
> >           if (pb->chassis && pb->chassis != b_ctx_in->chassis_rec
> >                   && !is_requested_additional_chassis(pb,
> >     b_ctx_in->chassis_rec)
> >     +            && (!parent_b_lport
> >     +                || !is_requested_additional_chassis(parent_b_lport->pb,
> >     +
> >     b_ctx_in->chassis_rec))
> >                   && if_status_is_port_claimed(b_ctx_out->if_mgr,
> >                                                pb->logical_port)) {
> >               update_lport_tracking(pb, b_ctx_out->tracked_dp_bindings,
> >     false);
> >     @@ -1651,7 +1658,8 @@ consider_vif_lport(const struct
> >     sbrec_port_binding *pb,
> >                          struct binding_ctx_out *b_ctx_out,
> >                          struct local_binding *lbinding)
> >       {
> >     -    bool can_bind =
> >     lport_can_bind_on_this_chassis(b_ctx_in->chassis_rec, pb);
> >     +    enum can_bind can_bind =
> >     +        lport_can_bind_on_this_chassis(b_ctx_in->chassis_rec, pb);
> >
> >           if (!lbinding) {
> >               lbinding =
> >     local_binding_find(&b_ctx_out->lbinding_data->bindings,
> >     @@ -1767,10 +1775,12 @@ consider_container_lport(const struct
> >     sbrec_port_binding *pb,
> >           ovs_assert(parent_b_lport && parent_b_lport->pb);
> >           /* cannot bind to this chassis if the parent_port cannot be
> >     bounded. */
> >           /* Do not bind neither if parent is postponed */
> >     -    bool can_bind =
> >     lport_can_bind_on_this_chassis(b_ctx_in->chassis_rec,
> >     -
> >       parent_b_lport->pb) &&
> >     -
> >     !is_postponed_port(parent_b_lport->pb->logical_port) &&
> >     -
> >     lport_can_bind_on_this_chassis(b_ctx_in->chassis_rec, pb);
> >     +
> >     +    enum can_bind can_bind =
> >     +        (!is_postponed_port(parent_b_lport->pb->logical_port) &&
> >     +         lport_can_bind_on_this_chassis(b_ctx_in->chassis_rec, pb)) ?
> >     +         lport_can_bind_on_this_chassis(b_ctx_in->chassis_rec,
> >     +                                        parent_b_lport->pb) :
> >     CANNOT_BIND;
> >
> >           return consider_vif_lport_(pb, can_bind, b_ctx_in, b_ctx_out,
> >                                      container_b_lport);
> >     @@ -1820,7 +1830,7 @@ consider_virtual_lport(const struct
> >     sbrec_port_binding *pb,
> >               }
> >           }
> >
> >     -    if (!consider_vif_lport_(pb, true, b_ctx_in, b_ctx_out,
> >     +    if (!consider_vif_lport_(pb, CAN_BIND_AS_MAIN, b_ctx_in, b_ctx_out,
> >                                    virtual_b_lport)) {
> >               return false;
> >           }
> >     @@ -1916,11 +1926,13 @@ consider_nonvif_lport_(const struct
> >     sbrec_port_binding *pb,
> >               }
> >
> >               update_related_lport(pb, b_ctx_out);
> >     +        enum can_bind can_bind = lport_can_bind_on_this_chassis(
> >     +                                     b_ctx_in->chassis_rec, pb);
> >               return claim_lport(pb, NULL, b_ctx_in->chassis_rec, NULL,
> >                                  !b_ctx_in->ovnsb_idl_txn, false,
> >                                  b_ctx_out->tracked_dp_bindings,
> >                                  b_ctx_out->if_mgr,
> >     -                           b_ctx_out->postponed_ports);
> >     +                           b_ctx_out->postponed_ports, can_bind);
> >           }
> >           if (!is_ha_chassis) {
> >               remove_related_lport(pb, b_ctx_out);
> >     @@ -2900,7 +2912,8 @@ handle_updated_vif_lport(const struct
> >     sbrec_port_binding *pb,
> >           bool now_claimed = (pb->chassis == b_ctx_in->chassis_rec);
> >
> >           if (lport_type == LP_VIRTUAL || lport_type == LP_CONTAINER ||
> >     -            claimed == now_claimed) {
> >     +            (claimed == now_claimed &&
> >     +             !is_additional_chassis(pb, b_ctx_in->chassis_rec))) {
> >               return true;
> >           }
> >
> >     @@ -2987,7 +3000,7 @@ consider_patch_port_for_local_datapaths(const
> >     struct sbrec_port_binding *pb,
> >                                  !b_ctx_in->ovnsb_idl_txn, false,
> >                                  b_ctx_out->tracked_dp_bindings,
> >                                  b_ctx_out->if_mgr,
> >     -                           b_ctx_out->postponed_ports);
> >     +                           b_ctx_out->postponed_ports,
> >     CAN_BIND_AS_MAIN);
> >           }
> >           /* If this chassis is claimed, but not requested to be; or
> >     requested for
> >            * some other chassis, but claimed by us - release. */
> >     diff --git a/controller/physical.c b/controller/physical.c
> >     index 9cab3ae26..69bf05347 100644
> >     --- a/controller/physical.c
> >     +++ b/controller/physical.c
> >     @@ -1773,8 +1773,8 @@ consider_port_binding(const struct
> >     physical_ctx *ctx,
> >                       ctx->sbrec_port_binding_by_name,
> >     binding->parent_port);
> >
> >                   if (parent_port
> >     -                && (lport_can_bind_on_this_chassis(ctx->chassis,
> >     -                    parent_port) != CAN_BIND_AS_MAIN)) {
> >     +                && !lport_can_bind_on_this_chassis(ctx->chassis,
> >     +                                                   parent_port)) {
> >                       /* Even though there is an ofport for this container
> >                        * parent port, it is requested on different
> >     chassis ignore
> >                        * this container port.
> >     diff --git a/tests/multinode.at <http://multinode.at>
> >     b/tests/multinode.at <http://multinode.at>
> >     index c1bd3123a..68c9eba22 100644
> >     --- a/tests/multinode.at <http://multinode.at>
> >     +++ b/tests/multinode.at <http://multinode.at>
> >     @@ -2776,3 +2776,258 @@ for i in 1 2; do
> >       done
> >
> >       AT_CLEANUP
> >     +
> >     +AT_SETUP([Migration of container ports])
> >     +# Migrate vif port between chassis-1 and chassis-3; send packets
> >     between
> >     +# chassis-2 and chassis-1/chassis-3, and check that
> >     +# - packet handing on src works before migration.
> >     +# - packet handing on src & dst works during migration.
> >     +# - packet handing on dst works after migration.
> >     +# Do the same for container ports.
> >     +# The container port migration is tested in two different orders,
> >     +# setting iface-id on dst resp. before and after requested-chassis.
> >     +
> >     +# Check that ovn-fake-multinode setup is up and running
> >     +# check_fake_multinode_setup
> >     +check_fake_multinode_setup_by_nodes 'ovn-chassis-1 ovn-chassis-2
> >     ovn-chassis-3'
> >     +
> >     +# Delete the multinode NB and OVS resources before starting the test.
> >     +cleanup_multinode_resources_by_nodes 'ovn-chassis-1 ovn-chassis-2
> >     ovn-chassis-3'
> >     +
> >     +OVS_WAIT_UNTIL([m_as ovn-chassis-1 ip link show | grep -q genev_sys])
> >     +OVS_WAIT_UNTIL([m_as ovn-chassis-2 ip link show | grep -q genev_sys])
> >     +OVS_WAIT_UNTIL([m_as ovn-chassis-3 ip link show | grep -q genev_sys])
> >     +
> >     +check multinode_nbctl ls-add sw0
> >     +check multinode_nbctl lsp-add sw0 migrator
> >     +check multinode_nbctl lsp-set-addresses migrator "50:54:00:00:00:03
> >     10.0.0.3 1000::3"
> >     +check multinode_nbctl lsp-add sw0 sw0-port2
> >     +check multinode_nbctl lsp-set-addresses sw0-port2
> >     "50:54:00:00:00:04 10.0.0.4 1000::4"
> >     +
> >     +# Set requested chassis before creating migrator on chassis-3
> >     +check multinode_nbctl --wait=hv set Logical_Switch_Port migrator
> >     options:requested-chassis=ovn-chassis-1
> >     +
> >     +m_as ovn-chassis-1 /data/create_fake_vm.sh migrator migrator
> >     50:54:00:00:00:03 1342 10.0.0.3 24 10.0.0.1 1000::3/64 1000::a
> >     +m_as ovn-chassis-3 /data/create_fake_vm.sh migrator migrator
> >     50:54:00:00:00:03 1342 10.0.0.3 24 10.0.0.1 1000::3/64 1000::a
> >     +m_as ovn-chassis-2 /data/create_fake_vm.sh sw0-port2 sw0p2
> >     50:54:00:00:00:04 1342 10.0.0.4 24 10.0.0.1 1000::4/64 1000::a
> >     +
> >     +m_wait_for_ports_up
> >     +
> >     +M_START_TCPDUMP([ovn-chassis-1], [-neei genev_sys_6081 arp or ip],
> >     [ch1_genev])
> >     +M_START_TCPDUMP([ovn-chassis-1], [-neei migrator-p arp or ip],
> >     [ch1_migrator])
> >     +M_START_TCPDUMP([ovn-chassis-2], [-neei genev_sys_6081 arp or ip],
> >     [ch2_genev])
> >     +M_START_TCPDUMP([ovn-chassis-2], [-neei sw0p2-p arp or ip],
> >     [ch2_sw0p2])
> >     +M_START_TCPDUMP([ovn-chassis-3], [-neei genev_sys_6081 arp or ip],
> >     [ch3_genev])
> >     +M_START_TCPDUMP([ovn-chassis-3], [-neei migrator-p arp or ip],
> >     [ch3_migrator])
> >     +
> >     +AS_BOX([Migration with vifs])
> >     +echo "Migrator on chassis-1 => sw0p2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 10.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +echo "sw0p2 on chassis-2 => Migrator on chassis-1"
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ping -q -c 3 -i 0.3 -w 2
> >     10.0.0.3 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +echo "== Starting migration =="
> >     +check multinode_nbctl --wait=hv set Logical_Switch_Port migrator
> >     options:requested-chassis=ovn-chassis-1,ovn-chassis-3
> >     +
> >     +echo "Migrator on chassis-1 => sw0p2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 10.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +
> >     +echo "Migrator on chassis-3 => sw0p2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 10.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +echo "sw0p2 on chassis-2 => migrator on  ..."
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ping -q -c 3 -i 0.3 -w 2
> >     10.0.0.3 | FORMAT_PING], \
> >     +[0], [stdout])
> >     +
> >     +# Both VM are running ... We might get duplicates replies.
> >     +AT_CHECK([cat stdout | grep "3 packets transmitted" | grep -c "3
> >     received"], [0],[dnl
> >     +1
> >     +])
> >     +
> >     +echo "== Finalizing migration =="
> >     +check multinode_nbctl --wait=hv set Logical_Switch_Port migrator
> >     options:requested-chassis=ovn-chassis-3
> >     +
> >     +echo "Migrator on chassis-1 => sw0p2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 10.0.0.4 | FORMAT_PING], \
> >     +[0], [stdout])
> >     +
> >     +# VM still running on chassis-1 but flows should have been deleted
> >     as migration completed.
> >     +AT_CHECK([cat stdout | grep -c "100% packet loss"], [0],[dnl
> >     +1
> >     +])
> >     +
> >     +echo "Migrator on chassis-3 => sw0p2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 10.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +# We should not have duplicates anymore
> >     +echo "sw0p2 on chassis-2 => migrator on chassis-3"
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ping -q -c 3 -i 0.3 -w 2
> >     10.0.0.3 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +AS_BOX([Migration with container ports])
> >     +# Create container ports.
> >     +check multinode_nbctl ls-add sw1
> >     +check multinode_nbctl lsp-add sw1 mig-cont migrator 10 \
> >     +                   -- lsp-set-addresses mig-cont "f0:00:00:01:02:03
> >     20.0.0.3"
> >     +check multinode_nbctl lsp-add sw1 cont2 sw0-port2 10 \
> >     +                   -- lsp-set-addresses cont2 "f0:00:00:01:02:04
> >     20.0.0.4"
> >     +
> >     +# Create the interface for lport mig-cont
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ip link add link
> >     migrator name cont type vlan id 10], [0])
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ip link set cont
> >     address f0:00:00:01:02:03], [0])
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ip link set cont up],
> >     [0])
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ip addr add
> >     20.0.0.3/24 <http://20.0.0.3/24> dev cont], [0])
> >     +
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ip link add link
> >     migrator name cont type vlan id 10], [0])
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ip link set cont
> >     address f0:00:00:01:02:03], [0])
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ip link set cont up],
> >     [0])
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ip addr add
> >     20.0.0.3/24 <http://20.0.0.3/24> dev cont], [0])
> >     +
> >     +# Create the interface for lport sw1-port2
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ip link add link sw0p2
> >     name cont2 type vlan id 10], [0])
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ip link set cont2
> >     address f0:00:00:01:02:04], [0])
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ip link set cont2 up], [0])
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ip addr add 20.0.0.4/24
> >     <http://20.0.0.4/24> dev cont2], [0])
> >     +
> >     +echo "mig-cont on chassis-3 => cont2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 20.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +echo "cont2 on chassis-2 => mig-cont on chassis-3"
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ping -q -c 3 -i 0.3 -w 2
> >     20.0.0.3 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +echo "== Starting migration back =="
> >     +check multinode_nbctl --wait=hv set Logical_Switch_Port migrator
> >     options:requested-chassis=ovn-chassis-3,ovn-chassis-1
> >     +
> >     +echo "mig-cont on chassis-3 => cont2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 20.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +echo "mig-cont on chassis-1 => cont2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 20.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +echo "cont2 on chassis-2 => mig-cont on  ..."
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ping -q -c 3 -i 0.3 -w 2
> >     20.0.0.3 | FORMAT_PING], \
> >     +[0], [stdout])
> >     +
> >     +# Both VM are running ... We might get duplicates replies.
> >     +AT_CHECK([cat stdout | grep "3 packets transmitted" | grep -c "3
> >     received"], [0],[dnl
> >     +1
> >     +])
> >     +
> >     +echo "== Finalizing migration =="
> >     +check multinode_nbctl --wait=hv set Logical_Switch_Port migrator
> >     options:requested-chassis=ovn-chassis-1
> >     +
> >     +echo "mig-cont on chassis-3 => cont2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 20.0.0.4 | FORMAT_PING], \
> >     +[0], [stdout])
> >     +
> >     +# VM still running on chassis-3 but flows should have been deleted....
> >     +AT_CHECK([cat stdout | grep -c "100% packet loss"], [0],[dnl
> >     +1
> >     +])
> >     +
> >     +echo "mig-cont on chassis-1 => cont2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 20.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +# We should not have duplicates anymore
> >     +echo "cont2 on chassis-2 => mig-cont on chassis-1"
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ping -q -c 3 -i 0.3 -w 2
> >     20.0.0.3 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +echo "== Starting another migration, this time before starting dst
> >     VM =="
> >     +# Unbind migrator from chassis-3
> >     +m_as ovn-chassis-3 ovs-vsctl -- set Interface migrator-p
> >     external_ids:iface-id=foo
> >     +
> >     +check multinode_nbctl --wait=hv set Logical_Switch_Port migrator
> >     options:requested-chassis=ovn-chassis-1,ovn-chassis-3
> >     +sleep 1
> >     +m_as ovn-chassis-3 ovs-vsctl -- set Interface migrator-p
> >     external_ids:iface-id=migrator
> >     +
> >     +
> >     +echo "mig-cont on chassis-3 => cont2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 20.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +echo "mig-cont on chassis-1 => cont2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 20.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +echo "cont2 on chassis-2 => migrator on  ..."
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ping -q -c 3 -i 0.3 -w 2
> >     20.0.0.3 | FORMAT_PING], \
> >     +[0], [stdout])
> >     +
> >     +# Both VM are running ... We might get duplicates replies.
> >     +AT_CHECK([cat stdout | grep "3 packets transmitted" | grep -c "3
> >     received"], [0],[dnl
> >     +1
> >     +])
> >     +
> >     +echo "== Finalizing migration =="
> >     +check multinode_nbctl --wait=hv set Logical_Switch_Port migrator
> >     options:requested-chassis=ovn-chassis-3
> >     +
> >     +echo "mig-cont on chassis-1 => cont2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-1], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 20.0.0.4 | FORMAT_PING], \
> >     +[0], [stdout])
> >     +
> >     +# VM still running on chassis-1 but flows should have been deleted....
> >     +AT_CHECK([cat stdout | grep -c "100% packet loss"], [0],[dnl
> >     +1
> >     +])
> >     +
> >     +echo "mig-cont on chassis-3 => cont2 on chassis-2"
> >     +M_NS_CHECK_EXEC([ovn-chassis-3], [migrator], [ping -q -c 3 -i 0.3
> >     -w 2 20.0.0.4 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +# We should not have duplicates anymore
> >     +echo "cont2 on chassis-2 => mig-cont on chassis-3"
> >     +M_NS_CHECK_EXEC([ovn-chassis-2], [sw0p2], [ping -q -c 3 -i 0.3 -w 2
> >     20.0.0.3 | FORMAT_PING], \
> >     +[0], [dnl
> >     +3 packets transmitted, 3 received, 0% packet loss, time 0ms
> >     +])
> >     +
> >     +m_as ovn-chassis-1 killall tcpdump
> >     +m_as ovn-chassis-2 killall tcpdump
> >     +m_as ovn-chassis-3 killall tcpdump
> >     +
> >     +AT_CLEANUP
> >     +
> >     +
> >     diff --git a/tests/ovn.at <http://ovn.at> b/tests/ovn.at <http://ovn.at>
> >     index d105ed253..9b498aa0c 100644
> >     --- a/tests/ovn.at <http://ovn.at>
> >     +++ b/tests/ovn.at <http://ovn.at>
> >     @@ -16785,6 +16785,160 @@ OVN_CLEANUP([hv1],[hv2])
> >       AT_CLEANUP
> >       ])
> >
> >     +OVN_FOR_EACH_NORTHD([
> >     +AT_SETUP([No fight between two chassis for the same port])
> >     +ovn_start
> >     +
> >     +# lsp1 on hv1, lsp2 on hv2.
> >     +# migrator1 (and its mig1-cont container) initially on hv1.
> >     +# migrator2 (and its mig2-cont container) initially on hv2.
> >     +# For migrator1, iface-id is set (in both hv) before starting
> >     migration.
> >     +# For migrator2, iface-id is set (in dst hv) after initiating
> >     migration.
> >     +check ovn-nbctl ls-add ls0
> >     +check ovn-nbctl lsp-add ls0 lsp1
> >     +check ovn-nbctl lsp-add ls0 lsp2
> >     +check ovn-nbctl lsp-add ls0 migrator1
> >     +check ovn-nbctl lsp-add ls0 migrator2
> >     +check ovn-nbctl lsp-add ls0 mig1-cont migrator1 1
> >     +check ovn-nbctl lsp-add ls0 mig2-cont migrator2 1
> >     +check ovn-nbctl set Logical_Switch_Port migrator1
> >     options:requested-chassis=hv1
> >     +check ovn-nbctl set Logical_Switch_Port migrator2
> >     options:requested-chassis=hv2
> >     +
> >     +net_add n1
> >     +for i in 1 2; do
> >     +    sim_add hv$i
> >     +    as hv$i
> >     +    ovs-vsctl add-br br-phys
> >     +    ovn_attach n1 br-phys 192.168.0.$i
> >     +done
> >     +
> >     +as hv2 ovs-vsctl -- add-port br-int vif-migrator2 \
> >     +                 -- set Interface vif-migrator2
> >     external-ids:iface-id=migrator2
> >     +
> >     +# Set iface-id in both hv1 and hv2.
> >     +for i in 1 2; do
> >     +    as hv$i
> >     +    ovs-vsctl -- add-port br-int vif-migrator1 \
> >     +              -- set Interface vif-migrator1
> >     external-ids:iface-id=migrator1
> >     +    ovs-vsctl -- add-port br-int vif$i \
> >     +              -- set Interface vif$i external-ids:iface-id=lsp$i
> >     +done
> >     +
> >     +hv1_uuid=$(ovn-sbctl --bare --columns _uuid list chassis hv1)
> >     +hv2_uuid=$(ovn-sbctl --bare --columns _uuid list chassis hv2)
> >     +
> >     +check_in_port_flows_count() {
> >     +  hv=$1
> >     +  of=$2
> >     +  count=$3
> >     +  AT_CHECK_UNQUOTED([as $hv ovs-ofctl dump-flows br-int
> >     table=OFTABLE_PHY_TO_LOG | grep "in_port=$of" | wc -l], [0], [dnl
> >     +$count
> >     +])
> >     +}
> >     +
> >     +check_claims() {
> >     +    port=$1
> >     +    hv1_claims=$(grep -c "Claiming lport $port\|Changing chassis
> >     for lport $port" hv1/ovn-controller.log)
> >     +    hv2_claims=$(grep -c "Claiming lport $port\|Changing chassis
> >     for lport $port" hv2/ovn-controller.log)
> >     +    echo "$hv1_claims claims for port $port in hv1"
> >     +    echo "$hv2_claims claims for port $port in hv2"
> >     +    AT_CHECK([test "${hv1_claims}" -le "${max_claims}"], [0], [])
> >     +    AT_CHECK([test "${hv2_claims}" -le "${max_claims}"], [0], [])
> >     +}
> >     +
> >     +# Waiting for flows in hv1 && hv2 for resp. lsp1 and lsp2.
> >     +OVS_WAIT_UNTIL([
> >     +    of_hv1=$(as hv1 ovs-vsctl --bare --columns ofport find
> >     Interface name=vif1)
> >     +    of_hv2=$(as hv2 ovs-vsctl --bare --columns ofport find
> >     Interface name=vif2)
> >     +    test -n $of_hv1 && test -n $of_hv2 &&
> >     +        test 1 -le $(as hv1 ovs-ofctl dump-flows br-int
> >     table=OFTABLE_PHY_TO_LOG | grep "in_port=$of_hv1" | wc -l) &&
> >     +        test 1 -le $(as hv2 ovs-ofctl dump-flows br-int
> >     table=OFTABLE_PHY_TO_LOG | grep "in_port=$of_hv2" | wc -l)
> >     +])
> >     +
> >     +of1=$(as hv1 ovs-vsctl --bare --columns ofport find Interface
> >     name=vif-migrator1)
> >     +of2=$(as hv2 ovs-vsctl --bare --columns ofport find Interface
> >     name=vif-migrator1)
> >     +
> >     +AS_BOX([$(date +%H:%M:%S.%03N) Before migrating migrator1])
> >     +wait_column "" Port_Binding additional_chassis logical_port=migrator1
> >     +wait_column "" Port_Binding additional_chassis logical_port=mig1-cont
> >     +# We should have two flows in table OFTABLE_PHY_TO_LOG from
> >     in_port=migrator1 in hv1 (one for vif and one for the container) and
> >     0 flows in hv2.
> >     +check_in_port_flows_count hv1 $of1 2
> >     +check_in_port_flows_count hv2 $of2 0
> >     +
> >     +
> >     +AS_BOX([$(date +%H:%M:%S.%03N) Starting migrating migrator1])
> >     +check ovn-nbctl --wait=hv set Logical_Switch_Port migrator1
> >     options:requested-chassis=hv1,hv2
> >     +wait_column "$hv2_uuid" Port_Binding additional_chassis
> >     logical_port=migrator1
> >     +wait_column "$hv2_uuid" Port_Binding additional_chassis
> >     logical_port=mig1-cont
> >     +# We should have two flows in table OFTABLE_PHY_TO_LOG from
> >     in_port=migrator1 in hv1 and hv2.
> >     +check_in_port_flows_count hv1 $of1 2
> >     +check_in_port_flows_count hv2 $of2 2
> >     +
> >     +# While migration in underway, check that there is no fight between hv
> >     +sleep 3
> >     +max_claims=2
> >     +check_claims migrator1
> >     +check_claims mig1-cont
> >     +
> >     +AS_BOX([$(date +%H:%M:%S.%03N) After migrating migrator1])
> >     +check ovn-nbctl --wait=hv set Logical_Switch_Port migrator1
> >     options:requested-chassis=hv2
> >     +wait_column "" Port_Binding additional_chassis logical_port=migrator1
> >     +wait_column "" Port_Binding additional_chassis logical_port=mig1-cont
> >     +check_in_port_flows_count hv1 $of1 0
> >     +check_in_port_flows_count hv2 $of2 2
> >     +
> >     +# Now do the same, but with iface-id set after starting migration
> >     +of2=$(as hv2 ovs-vsctl --bare --columns ofport find Interface
> >     name=vif-migrator2)
> >     +# There is no ofport yet for hv1 => we cannot check/find a flows
> >     with in_port=of1
> >     +
> >     +AS_BOX([$(date +%H:%M:%S.%03N) Before migrating migrator2])
> >     +# We should have zero flows in table OFTABLE_PHY_TO_LOG from
> >     in_port=migrator2 in hv1 and two flows in hv2.
> >     +wait_column "" Port_Binding additional_chassis logical_port=migrator2
> >     +wait_column "" Port_Binding additional_chassis logical_port=mig2-cont
> >     +check_in_port_flows_count hv2 $of2 2
> >     +
> >     +check ovn-nbctl --wait=hv set Logical_Switch_Port migrator2
> >     options:requested-chassis=hv2,hv1
> >     +wait_column "" Port_Binding additional_chassis logical_port=migrator2
> >     +wait_column "" Port_Binding additional_chassis logical_port=mig2-cont
> >     +# As no iface-id for migrator2 yet, migration not really started
> >     +# We should have zero flows in table OFTABLE_PHY_TO_LOG from
> >     in_port=migrator2 in hv1 and two flows in hv2.
> >     +check_in_port_flows_count hv2 $of2 2
> >     +
> >     +AS_BOX([$(date +%H:%M:%S.%03N) Starting migrating migrator2])
> >     +as hv1 ovs-vsctl -- add-port br-int vif-migrator2 \
> >     +                 -- set Interface vif-migrator2
> >     external-ids:iface-id=migrator2
> >     +
> >     +wait_column "$hv1_uuid" Port_Binding additional_chassis
> >     logical_port=migrator2
> >     +wait_column "$hv1_uuid" Port_Binding additional_chassis
> >     logical_port=mig2-cont
> >     +# We need for oflow to be created and handled by ovn-controller.
> >     Wait sync would not be enough.
> >     +OVS_WAIT_UNTIL([
> >     +    of1=$(as hv1 ovs-vsctl --bare --columns ofport find Interface
> >     name=vif-migrator2)
> >     +    test 1 -le "$of1"
> >     +])
> >     +
> >     +check ovn-nbctl --wait=hv sync
> >     +
> >     +# We should have two flows in table OFTABLE_PHY_TO_LOG from
> >     in_port=migrator2 in hv1 and hv2.
> >     +check_in_port_flows_count hv1 $of1 2
> >     +check_in_port_flows_count hv2 $of2 2
> >     +
> >     +# While migration in underway, check that there is no fight between hv
> >     +sleep 3
> >     +check_claims migrator2
> >     +check_claims mig2-cont
> >     +
> >     +AS_BOX([$(date +%H:%M:%S.%03N) After migrating migrator2])
> >     +check ovn-nbctl --wait=hv set Logical_Switch_Port migrator2
> >     options:requested-chassis=hv1
> >     +wait_column "" Port_Binding additional_chassis logical_port=migrator2
> >     +wait_column "" Port_Binding additional_chassis logical_port=mig2-cont
> >     +check_in_port_flows_count hv1 $of1 2
> >     +check_in_port_flows_count hv2 $of2 0
> >     +
> >     +OVN_CLEANUP([hv1],[hv2])
> >     +
> >     +AT_CLEANUP
> >     +])
> >     +
> >       OVN_FOR_EACH_NORTHD([
> >       AT_SETUP([options:requested-chassis with hostname])
> >
> >     @@ -39199,7 +39353,7 @@ OVS_WAIT_FOR_OUTPUT([as hv2 ovs-ofctl
> >     dump-flows br-int table=OFTABLE_PHY_TO_LOG
> >       ])
> >
> >       # Add hv2 to lport Additional requested chassis as MAIN chassis
> >     -# and check that no flows installed in table 0 in hv1
> >     +# and check that flows remain installed in table 0 in hv1
> >       check ovn-nbctl set Logical_Switch_Port lsp1 \
> >           options:requested-chassis=hv2,hv1
> >
> >     @@ -39214,8 +39368,8 @@ wait_column "$hv2_uuid" Port_Binding chassis
> >     logical_port=lsp1
> >       OVS_WAIT_FOR_OUTPUT([as hv2 ovs-ofctl dump-flows br-int
> >     table=OFTABLE_PHY_TO_LOG |grep priority=150|grep dl_vlan=7| grep -c
> >     in_port=8], [0],[dnl
> >       1
> >       ])
> >     -OVS_WAIT_FOR_OUTPUT([as hv1 ovs-ofctl dump-flows br-int
> >     table=OFTABLE_PHY_TO_LOG |grep priority=150|grep dl_vlan=7| grep -c
> >     in_port=8], [1],[dnl
> >     -0
> >     +OVS_WAIT_FOR_OUTPUT([as hv1 ovs-ofctl dump-flows br-int
> >     table=OFTABLE_PHY_TO_LOG |grep priority=150|grep dl_vlan=7| grep -c
> >     in_port=8], [0],[dnl
> >     +1
> >       ])
> >
> >       OVN_CLEANUP([hv1])
> >     --
> >     2.47.1
> >
> >
> > Looks good to me, thanks.
> >
> > Acked-by: Ales Musil <[email protected] <mailto:[email protected]>>
>
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