On 3/8/23 15:48, Ales Musil wrote:
> On Wed, Mar 8, 2023 at 3:44 PM Dumitru Ceara <[email protected]> wrote:
> 
>> Chassis in remote AZs are not programmed by the local ovn-northd.  So we
>> don't need to take into account their supported feature set when
>> building logical flows.
>>
>> This patch also introduces a new northd unix command,
>> "debug/chassis-features-list".  This is used by the newly added self
>> test but might also be useful when debugging live issues.
>>
>> Suggested-by: Numan Siddique <[email protected]>
>> Signed-off-by: Dumitru Ceara <[email protected]>
>> ---
>> V2:
>> - Addressed Ales' comment:
>>   - explicitly set remote chassis features as unsupported in the test.
>> ---
>>  northd/inc-proc-northd.c | 26 ++++++++++++++++++++++++++
>>  northd/northd.c          |  7 +++++++
>>  tests/ovn-northd.at      | 36 ++++++++++++++++++++++++++++++++++++
>>  3 files changed, 69 insertions(+)
>>
>> diff --git a/northd/inc-proc-northd.c b/northd/inc-proc-northd.c
>> index 1c8550df5d..b28f551895 100644
>> --- a/northd/inc-proc-northd.c
>> +++ b/northd/inc-proc-northd.c
>> @@ -34,10 +34,13 @@
>>  #include "en-lflow.h"
>>  #include "en-northd-output.h"
>>  #include "en-sync-sb.h"
>> +#include "unixctl.h"
>>  #include "util.h"
>>
>>  VLOG_DEFINE_THIS_MODULE(inc_proc_northd);
>>
>> +static unixctl_cb_func chassis_features_list;
>> +
>>  #define NB_NODES \
>>      NB_NODE(nb_global, "nb_global") \
>>      NB_NODE(copp, "copp") \
>> @@ -305,6 +308,12 @@ void inc_proc_northd_init(struct ovsdb_idl_loop *nb,
>>      engine_ovsdb_node_add_index(&en_sb_address_set,
>>                                  "sbrec_address_set_by_name",
>>                                  sbrec_address_set_by_name);
>> +
>> +    struct northd_data *northd_data =
>> +        engine_get_internal_data(&en_northd);
>> +    unixctl_command_register("debug/chassis-features-list", "", 0, 0,
>> +                             chassis_features_list,
>> +                             &northd_data->features);
>>  }
>>
>>  /* Returns true if the incremental processing ended up updating nodes. */
>> @@ -355,3 +364,20 @@ void inc_proc_northd_cleanup(void)
>>      engine_cleanup();
>>      engine_set_context(NULL);
>>  }
>> +
>> +static void
>> +chassis_features_list(struct unixctl_conn *conn, int argc OVS_UNUSED,
>> +                      const char *argv[] OVS_UNUSED, void *features_)
>> +{
>> +    struct chassis_features *features = features_;
>> +    struct ds ds = DS_EMPTY_INITIALIZER;
>> +
>> +    ds_put_format(&ds, "ct_no_masked_label:    %s\n",
>> +                  features->ct_no_masked_label ? "true" : "false");
>> +    ds_put_format(&ds, "ct_lb_related:         %s\n",
>> +                  features->ct_lb_related ? "true" : "false");
>> +    ds_put_format(&ds, "mac_binding_timestamp: %s\n",
>> +                  features->mac_binding_timestamp ? "true" : "false");
>> +    unixctl_command_reply(conn, ds_cstr(&ds));
>> +    ds_destroy(&ds);
>> +}
>> diff --git a/northd/northd.c b/northd/northd.c
>> index ab10fea6ab..661f91ff7e 100644
>> --- a/northd/northd.c
>> +++ b/northd/northd.c
>> @@ -432,6 +432,13 @@ build_chassis_features(const struct northd_input
>> *input_data,
>>      const struct sbrec_chassis *chassis;
>>
>>      SBREC_CHASSIS_TABLE_FOR_EACH (chassis, input_data->sbrec_chassis) {
>> +        /* Only consider local AZ chassis.  Remote ones don't install
>> +         * flows generated by the local northd.
>> +         */
>> +        if (smap_get_bool(&chassis->other_config, "is-remote", false)) {
>> +            continue;
>> +        }
>> +
>>          bool ct_no_masked_label =
>>              smap_get_bool(&chassis->other_config,
>>                            OVN_FEATURE_CT_NO_MASKED_LABEL,
>> diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at
>> index d0f6893e94..6c901a202b 100644
>> --- a/tests/ovn-northd.at
>> +++ b/tests/ovn-northd.at
>> @@ -8650,3 +8650,39 @@ AT_CHECK([grep -e "ls_in_acl" -e "ls_out_acl"
>> lflows2 | grep "priority=65532"],
>>
>>  AT_CLEANUP
>>  ])
>> +
>> +OVN_FOR_EACH_NORTHD_NO_HV([
>> +AT_SETUP([Chassis-feature compatibitility - remote chassis])
>> +ovn_start
>> +
>> +AS_BOX([Local chassis])
>> +check ovn-sbctl chassis-add hv1 geneve 127.0.0.1 \
>> +  -- set chassis hv1 other_config:ct-no-masked-label=true \
>> +  -- set chassis hv1 other_config:ovn-ct-lb-related=true \
>> +  -- set chassis hv1 other_config:mac-binding-timestamp=true
>> +
>> +check ovn-nbctl --wait=sb sync
>> +
>> +AT_CHECK([as northd ovn-appctl -t NORTHD_TYPE
>> debug/chassis-features-list], [0], [dnl
>> +ct_no_masked_label:    true
>> +ct_lb_related:         true
>> +mac_binding_timestamp: true
>> +])
>> +
>> +AS_BOX([Remote chassis])
>> +check ovn-sbctl chassis-add hv2 geneve 127.0.0.2 \
>> +  -- set chassis hv2 other_config:is-remote=true \
>> +  -- set chassis hv2 other_config:ct-no-masked-label=false \
>> +  -- set chassis hv2 other_config:ovn-ct-lb-related=false \
>> +  -- set chassis hv2 other_config:mac-binding-timestamp=false
>> +
>> +check ovn-nbctl --wait=sb sync
>> +
>> +AT_CHECK([as northd ovn-appctl -t NORTHD_TYPE
>> debug/chassis-features-list], [0], [dnl
>> +ct_no_masked_label:    true
>> +ct_lb_related:         true
>> +mac_binding_timestamp: true
>> +])
>> +
>> +AT_CLEANUP
>> +])
>> --
>> 2.31.1
>>
>>
> Looks good to me, thanks.
> 
> Acked-by: Ales Musil <[email protected]>
> 

Thanks for the review!  I pushed this to the main branch.

Regards,
Dumitru

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