On Mon, Jul 25, 2022 at 6:01 PM Ihar Hrachyshka <[email protected]> wrote:

> On Mon, Jul 25, 2022 at 1:25 AM Ales Musil <[email protected]> wrote:
> >
> > Hi Ihar,
> >
> >
> > On Fri, Jul 22, 2022 at 8:37 PM Ihar Hrachyshka <[email protected]>
> wrote:
> >>
> >> On Wed, Jul 20, 2022 at 4:50 AM Ales Musil <[email protected]> wrote:
> >> >
> >> > Reported-at: https://bugzilla.redhat.com/2084668
> >> > Signed-off-by: Ales Musil <[email protected]>
> >> > ---
> >> > v3: Rebase on top of current main.
> >> >     Update according to the final conclusion.
> >> > ---
> >> >  tests/ovn.at | 109
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> >> >  1 file changed, 109 insertions(+)
> >> >
> >> > diff --git a/tests/ovn.at b/tests/ovn.at
> >> > index 7d10610fd..cbacc52c5 100644
> >> > --- a/tests/ovn.at
> >> > +++ b/tests/ovn.at
> >> > @@ -32505,3 +32505,112 @@ AT_CHECK([test $(ovn-sbctl list fdb | grep
> -c "00:00:00:00:10:30") = 0])
> >> >  OVN_CLEANUP([hv1])
> >> >  AT_CLEANUP
> >> >  ])
> >> > +
> >> > +OVN_FOR_EACH_NORTHD([
> >> > +AT_SETUP([MAC binding aging])
> >> > +ovn_start
> >> > +
> >> > +net_add n1
> >> > +
> >> > +AT_CHECK([ovn-nbctl ls-add public])
> >> > +AT_CHECK([ovn-nbctl ls-add internal])
> >> > +
> >> > +AT_CHECK([ovn-nbctl lsp-add public ln_port])
> >> > +AT_CHECK([ovn-nbctl lsp-set-addresses ln_port unknown])
> >> > +AT_CHECK([ovn-nbctl lsp-set-type ln_port localnet])
> >> > +AT_CHECK([ovn-nbctl lsp-set-options ln_port network_name=physnet1])
> >> > +
> >> > +AT_CHECK([ovn-nbctl lsp-add public public-gw])
> >> > +AT_CHECK([ovn-nbctl lsp-set-type public-gw router])
> >> > +AT_CHECK([ovn-nbctl lsp-set-addresses public-gw 00:00:00:00:10:00
> router])
> >> > +AT_CHECK([ovn-nbctl lsp-set-options public-gw router-port=gw-public])
> >> > +
> >> > +AT_CHECK([ovn-nbctl lsp-add internal internal-gw])
> >> > +AT_CHECK([ovn-nbctl lsp-set-type internal-gw router])
> >> > +AT_CHECK([ovn-nbctl lsp-set-addresses internal-gw 00:00:00:00:20:00
> router])
> >> > +AT_CHECK([ovn-nbctl lsp-set-options internal-gw
> router-port=gw-internal])
> >> > +
> >> > +AT_CHECK([ovn-nbctl lsp-add internal vif1])
> >> > +AT_CHECK([ovn-nbctl lsp-set-addresses vif1 "00:00:00:00:20:10
> 192.168.20.10"])
> >> > +
> >> > +AT_CHECK([ovn-nbctl lsp-add internal vif2])
> >> > +AT_CHECK([ovn-nbctl lsp-set-addresses vif2 "00:00:00:00:20:20
> 192.168.20.20"])
> >> > +
> >> > +AT_CHECK([ovn-nbctl lr-add gw])
> >> > +AT_CHECK([ovn-nbctl lrp-add gw gw-public 00:00:00:00:10:00
> 192.168.10.1/24])
> >> > +AT_CHECK([ovn-nbctl lrp-add gw gw-internal 00:00:00:00:20:00
> 192.168.20.1/24])
> >> > +
> >> > +sim_add hv1
> >> > +as hv1
> >> > +ovs-vsctl add-br br-underlay
> >> > +ovn_attach n1 br-underlay 192.168.0.1
> >> > +ovs-vsctl add-br br-phys
> >> > +ovs-vsctl -- add-port br-int vif1 -- \
> >> > +    set interface vif1 external-ids:iface-id=vif1 \
> >> > +    options:tx_pcap=hv1/vif1-tx.pcap \
> >> > +    options:rxq_pcap=hv1/vif1-rx.pcap \
> >> > +    ofport-request=1
> >> > +ovs-vsctl -- add-port br-phys ext1 -- \
> >> > +    set interface ext1 \
> >> > +    options:tx_pcap=hv1/ext1-tx.pcap \
> >> > +    options:rxq_pcap=hv1/ext1-rx.pcap \
> >> > +    ofport-request=2
> >> > +ovs-vsctl set open .
> external_ids:ovn-bridge-mappings=physnet1:br-phys
> >> > +
> >> > +sim_add hv2
> >> > +as hv2
> >> > +ovs-vsctl add-br br-underlay
> >> > +ovn_attach n1 br-underlay 192.168.0.2
> >> > +ovs-vsctl add-br br-phys
> >> > +ovs-vsctl -- add-port br-int vif2 -- \
> >> > +    set interface vif2 external-ids:iface-id=vif2 \
> >> > +    options:tx_pcap=hv2/vif2-tx.pcap \
> >> > +    options:rxq_pcap=hv2/vif2-rx.pcap \
> >> > +    ofport-request=1
> >> > +ovs-vsctl -- add-port br-phys ext2 -- \
> >> > +    set interface ext2 \
> >> > +    options:tx_pcap=hv2/ext2-tx.pcap \
> >> > +    options:rxq_pcap=hv2/ext2-rx.pcap \
> >> > +    ofport-request=2
> >> > +ovs-vsctl set open .
> external_ids:ovn-bridge-mappings=physnet1:br-phys
> >> > +
> >> > +OVN_POPULATE_ARP
> >> > +
> >> > +send_garp() {
> >> > +    hv=$1
> >> > +    dev=$2
> >> > +    mac_byte=$3
> >> > +    ip_byte=${4-$3}
> >> > +
> >> > +    mac="0000000010$mac_byte"
> >> > +    ip=`ip_to_hex 192 168 10 $ip_byte`
> >> > +
> packet=ffffffffffff${mac}08060001080006040002${mac}${ip}${mac}${ip}
> >> > +    as $hv ovs-appctl netdev-dummy/receive $dev $packet
> >> > +}
> >> > +
> >> > +# Check if the option is not present by default
> >> > +AT_CHECK([fetch_column nb:logical_router options name="gw" | grep -q
> mac_binding_age_threshold], [1])
> >> > +
> >> > +# Set the MAC binding aging threshold
> >> > +AT_CHECK([ovn-nbctl set logical_router gw
> options:mac_binding_age_threshold=1])
> >> > +AT_CHECK([fetch_column nb:logical_router options | grep -q
> mac_binding_age_threshold=1])
> >> > +AT_CHECK([ovn-nbctl --wait=sb sync])
> >> > +
> >> > +# Send GARP to populate MAC binding table records
> >> > +send_garp hv1 ext1 10
> >> > +send_garp hv2 ext2 20
> >> > +
> >> > +OVS_WAIT_UNTIL([ovn-sbctl list mac_binding | grep -q
> "192.168.10.10"])
> >> > +OVS_WAIT_UNTIL([ovn-sbctl list mac_binding | grep -q
> "192.168.10.20"])
> >> > +
> >> > +# Check if the records are removed after 1 sec of inactivity
> >>
> >> I don't see where the 1 sec promise is checked here. OVS_WAIT_UNTIL
> >> may take a lot longer than that, and still the test would pass.
> >
> >
> > There is no guarantee that it will be exactly 1 sec, it can be later
> than that.
> > From my point of view that's fine as long as it gets deleted eventually.
> Also
> > having the test tight to the 1 sec would make it potentially flaky.
> Maybe the
> > comment can be adjusted to better reflect that.
> >
>
> I understand that but OVS_WAIT_UNTIL waits up to 30 seconds. Is there
> a middle ground between 1 sec and 30 sec we could find? AFAIU setting
> OVS_CTL_TIMEOUT allows to speed up the bailout.


I have reduced it to 5 seconds max. It will be included in v4.


>
>
> >>
> >>
> >> > +OVS_WAIT_UNTIL([
> >> > +    test "0" = "$(ovn-sbctl list mac_binding | grep -c
> '192.168.10.10')"
> >> > +])
> >> > +OVS_WAIT_UNTIL([
> >> > +    test "0" = "$(ovn-sbctl list mac_binding | grep -c
> '192.168.10.20')"
> >> > +])
> >> > +
> >> > +OVN_CLEANUP([hv1], [hv2])
> >> > +AT_CLEANUP
> >> > +])
> >> > --
> >> > 2.35.3
> >> >
> >> > _______________________________________________
> >> > dev mailing list
> >> > [email protected]
> >> > https://mail.openvswitch.org/mailman/listinfo/ovs-dev
> >> >
> >>
> >
> > Regards,
> > Ales
> >
> > --
> >
> > Ales Musil
> >
> > Senior Software Engineer - OVN Core
> >
> > Red Hat EMEA
> >
> > [email protected]    IM: amusil
>
>
Thanks,
Ales

-- 

Ales Musil

Senior Software Engineer - OVN Core

Red Hat EMEA <https://www.redhat.com>

[email protected]    IM: amusil
<https://red.ht/sig>
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