[ovs-dev,v7,1/1] ovn: l3ha, CLI for logical router port gateway chassis

From: Venkata Anil <vkommadi@redhat.com>

This change adds commands to set, get and delete gateway chassis
for logical router port.

Signed-off-by: Venkata Anil Kommaddi <vkommadi@redhat.com>
---
 ovn/utilities/ovn-nbctl.8.xml |  21 +++++
 ovn/utilities/ovn-nbctl.c     | 178 ++++++++++++++++++++++++++++++++++++++++++
 tests/ovn-nbctl.at            |  52 ++++++++++++
 3 files changed, 251 insertions(+)

One last comment, sorry to come late with more comments:

if lrp-set-gateway-chassis  is additive, shouldn't we rename it to:

lrp-add-gateway-chassis ?

Thanks, and best regards

On Tue, Jul 18, 2017 at 8:05 AM, Venkata Anil Kommaddi <vkommadi@redhat.com>
wrote:

> From: Venkata Anil <vkommadi@redhat.com>
>
> This change adds commands to set, get and delete gateway chassis
> for logical router port.
>
> Signed-off-by: Venkata Anil Kommaddi <vkommadi@redhat.com>
> ---
>  ovn/utilities/ovn-nbctl.8.xml |  21 +++++
>  ovn/utilities/ovn-nbctl.c     | 178 ++++++++++++++++++++++++++++++
> ++++++++++++
>  tests/ovn-nbctl.at            |  52 ++++++++++++
>  3 files changed, 251 insertions(+)
>
> diff --git a/ovn/utilities/ovn-nbctl.8.xml b/ovn/utilities/ovn-nbctl.8.xml
> index 15012af..ea4c5bb 100644
> --- a/ovn/utilities/ovn-nbctl.8.xml
> +++ b/ovn/utilities/ovn-nbctl.8.xml
> @@ -389,6 +389,27 @@
>          Prints the administrative state of <var>port</var>, either
>          <code>enabled</code> or <code>disabled</code>.
>        </dd>
> +
> +      <dt><code>lrp-set-gateway-chassis</code> <var>port</var>
> <var>chassis</var> [<var>priority</var>]</dt>
> +      <dd>
> +       Set gateway chassis for <var>port</var>. <var>chassis</var>
> +       is the name of the chassis. This creates a gateway chassis entry
> +       in Gateway_Chassis table. It won't check if chassis really exists
> +       in OVN_Southbound database. Priority will be set to 0
> +       if <var>priority</var> is not provided by user. <var>priority</var>
> +       must be between <code>0</code> and <code>32767</code>, inclusive.
> +      </dd>
> +      <dt><code>lrp-del-gateway-chassis</code> <var>port</var>
> <var>chassis</var></dt>
> +      <dd>
> +       Deletes gateway chassis from <var>port</var>.  It is an error if
> +       gateway chassis with <var>chassis</var> for <var>port</var> does
> +        not exist.
> +      </dd>
> +      <dt><code>lrp-get-gateway-chassis</code> <var>port</var></dt>
> +      <dd>
> +        Lists all the gateway chassis with priority within
> <var>port</var> on
> +        standard output, one per line, ordered based on priority.
> +      </dd>
>      </dl>
>
>      <h1>Logical Router Static Route Commands</h1>
> diff --git a/ovn/utilities/ovn-nbctl.c b/ovn/utilities/ovn-nbctl.c
> index 0488318..0b48949 100644
> --- a/ovn/utilities/ovn-nbctl.c
> +++ b/ovn/utilities/ovn-nbctl.c
> @@ -376,6 +376,13 @@ Logical router commands:\n\
>  Logical router port commands:\n\
>    lrp-add ROUTER PORT MAC NETWORK... [peer=PEER]\n\
>                              add logical port PORT on ROUTER\n\
> +  lrp-set-gateway-chassis PORT CHASSIS [PRIORITY]\n\
> +                            set gateway chassis for port PORT\n\
> +  lrp-del-gateway-chassis PORT CHASSIS\n\
> +                            delete gateway chassis from port PORT\n\
> +  lrp-get-gateway-chassis PORT\n\
> +                            print the names of all gateway chassis on
> PORT\n\
> +                            with PRIORITY\n\
>    lrp-del PORT              delete PORT from its attached router\n\
>    lrp-list ROUTER           print the names of all ports on ROUTER\n\
>    lrp-set-enabled PORT STATE\n\
> @@ -2528,6 +2535,170 @@ lr_get_name(const struct nbrec_logical_router *lr,
> char uuid_s[UUID_LEN + 1],
>      return uuid_s;
>  }
>
> +static const struct nbrec_gateway_chassis*
> +gc_by_name_or_uuid(struct ctl_context *ctx, const char *id, bool
> must_exist)
> +{
> +    const struct nbrec_gateway_chassis *gc = NULL;
> +
> +    struct uuid gc_uuid;
> +    bool is_uuid = uuid_from_string(&gc_uuid, id);
> +    if (is_uuid) {
> +        gc = nbrec_gateway_chassis_get_for_uuid(ctx->idl, &gc_uuid);
> +    }
> +
> +    if (!gc) {
> +        NBREC_GATEWAY_CHASSIS_FOR_EACH (gc, ctx->idl) {
> +            if (!strcmp(gc->name, id)) {
> +                break;
> +            }
> +        }
> +    }
> +
> +    if (!gc && must_exist) {
> +        ctl_fatal("%s: gateway chassis %s not found", id,
> +                  is_uuid ? "UUID" : "name");
> +    }
> +
> +    return gc;
> +}
> +
> +static void
> +nbctl_lrp_set_gateway_chassis(struct ctl_context *ctx)
> +{
> +    const char *gc_name;
> +    int64_t priority = 0;
> +    const char *lrp_name = ctx->argv[1];
> +    const struct nbrec_logical_router_port *lrp;
> +    lrp = lrp_by_name_or_uuid(ctx, lrp_name, true);
> +    if (!lrp) {
> +        ctl_fatal("router port %s is required", lrp_name);
> +        return;
> +    }
> +
> +    const char *chassis_name = ctx->argv[2];
> +    if (ctx->argv[3]) {
> +        priority = parse_priority(ctx->argv[3]);
> +    }
> +
> +    gc_name = xasprintf("%s-%s", lrp_name, chassis_name);
> +    const struct nbrec_gateway_chassis *gc;
> +    gc = gc_by_name_or_uuid(ctx, gc_name, false);
> +    if (gc) {
> +        nbrec_gateway_chassis_set_priority(gc, priority);
> +        return;
> +    }
> +
> +    /* Create the logical gateway chassis. */
> +    gc = nbrec_gateway_chassis_insert(ctx->txn);
> +    nbrec_gateway_chassis_set_name(gc, gc_name);
> +    nbrec_gateway_chassis_set_chassis_name(gc, chassis_name);
> +    nbrec_gateway_chassis_set_priority(gc, priority);
> +
> +    /* Insert the logical gateway chassis into the logical router port. */
> +    nbrec_logical_router_port_verify_gateway_chassis(lrp);
> +    struct nbrec_gateway_chassis **new_gc = xmalloc(
> +        sizeof *new_gc * (lrp->n_gateway_chassis + 1));
> +    nullable_memcpy(new_gc, lrp->gateway_chassis,
> +                    sizeof *new_gc * lrp->n_gateway_chassis);
> +    new_gc[lrp->n_gateway_chassis] = CONST_CAST(
> +        struct nbrec_gateway_chassis *, gc);
> +    nbrec_logical_router_port_set_gateway_chassis(
> +        lrp, new_gc, lrp->n_gateway_chassis + 1);
> +    free(new_gc);
> +}
> +
> +/* Removes logical router port 'lrp->gateway_chassis[idx]'. */
> +static void
> +remove_gc(const struct nbrec_logical_router_port *lrp, size_t idx)
> +{
> +    const struct nbrec_gateway_chassis *gc = lrp->gateway_chassis[idx];
> +    /* First remove 'gc' from the array of gateway_chassis.  This is what
> will
> +     * actually cause the gateway chassis to be deleted when the
> transaction is
> +     * sent to the database server (due to garbage collection). */
> +    struct nbrec_gateway_chassis **new_gc
> +        = xmemdup(lrp->gateway_chassis,
> +                  sizeof *new_gc * lrp->n_gateway_chassis);
> +    new_gc[idx] = new_gc[lrp->n_gateway_chassis - 1];
> +    nbrec_logical_router_port_verify_gateway_chassis(lrp);
> +    nbrec_logical_router_port_set_gateway_chassis(
> +        lrp, new_gc, lrp->n_gateway_chassis - 1);
> +    free(new_gc);
> +
> +    /* Delete 'gc' from the IDL.  This won't have a real effect on
> +     * the database server (the IDL will suppress it in fact) but it
> +     * means that it won't show up when we iterate with
> +     * NBREC_GATEWAY_CHASSIS_FOR_EACH later. */
> +    nbrec_gateway_chassis_delete(gc);
> +}
> +
> +static void
> +nbctl_lrp_del_gateway_chassis(struct ctl_context *ctx)
> +{
> +    const struct nbrec_logical_router_port *lrp;
> +    lrp = lrp_by_name_or_uuid(ctx, ctx->argv[1], true);
> +    if (!lrp) {
> +        return;
> +    }
> +    /* Find the lrp that contains 'gc', then delete it. */
> +    const char *chassis_name = ctx->argv[2];
> +    for (size_t i = 0; i < lrp->n_gateway_chassis; i++) {
> +        if (!strncmp(lrp->gateway_chassis[i]->chassis_name,
> +                    chassis_name,
> +                    strlen(lrp->gateway_chassis[i]->chassis_name))) {
> +            remove_gc(lrp, i);
> +            return;
> +        }
> +    }
> +
> +    /* Can't happen because of the database schema. */
> +    ctl_fatal("chassis %s is not added to logical port %s",
> +              chassis_name, ctx->argv[1]);
> +}
> +
> +/* gateway_chassis ordering
> + *  */
> +static int
> +compare_chassis_prio_(const void *gc1_, const void *gc2_)
> +{
> +    const struct nbrec_gateway_chassis *const *gc1p = gc1_;
> +    const struct nbrec_gateway_chassis *const *gc2p = gc2_;
> +    const struct nbrec_gateway_chassis *gc1 = *gc1p;
> +    const struct nbrec_gateway_chassis *gc2 = *gc2p;
> +
> +    int prio_diff = gc2->priority - gc1->priority;
> +    if (!prio_diff) {
> +        return strcmp(gc2->name, gc1->name);
> +    }
> +    return prio_diff;
> +}
> +
> +/* Print a list of gateway chassis. */
> +static void
> +nbctl_lrp_get_gateway_chassis(struct ctl_context *ctx)
> +{
> +    const char *id = ctx->argv[1];
> +    const struct nbrec_logical_router_port *lrp;
> +    const struct nbrec_gateway_chassis **gcs;
> +    size_t i;
> +
> +    lrp = lrp_by_name_or_uuid(ctx, id, true);
> +
> +    gcs = xmalloc(sizeof *gcs * lrp->n_gateway_chassis);
> +    for (i = 0; i < lrp->n_gateway_chassis; i++) {
> +        gcs[i] = lrp->gateway_chassis[i];
> +    }
> +
> +    qsort(gcs, lrp->n_gateway_chassis, sizeof *gcs,
> compare_chassis_prio_);
> +
> +    for (i = 0; i < lrp->n_gateway_chassis; i++) {
> +        const struct nbrec_gateway_chassis *gc = gcs[i];
> +        ds_put_format(&ctx->output, "%s %5"PRId64"\n",
> +                      gc->name, gc->priority);
> +    }
> +
> +    free(gcs);
> +}
> +
>  static void
>  nbctl_lrp_add(struct ctl_context *ctx)
>  {
> @@ -3413,6 +3584,13 @@ static const struct ctl_command_syntax
> nbctl_commands[] = {
>      { "lrp-add", 4, INT_MAX,
>        "ROUTER PORT MAC NETWORK... [COLUMN[:KEY]=VALUE]...",
>        NULL, nbctl_lrp_add, NULL, "--may-exist", RW },
> +    { "lrp-set-gateway-chassis", 2, 3,
> +      "PORT CHASSIS [PRIORITY]",
> +      NULL, nbctl_lrp_set_gateway_chassis, NULL, "--may-exist", RW },
> +    { "lrp-del-gateway-chassis", 2, 2, "PORT CHASSIS", NULL,
> +      nbctl_lrp_del_gateway_chassis, NULL, "", RW },
> +    { "lrp-get-gateway-chassis", 1, 1, "PORT", NULL,
> +      nbctl_lrp_get_gateway_chassis, NULL, "", RO },
>      { "lrp-del", 1, 1, "PORT", NULL, nbctl_lrp_del, NULL, "--if-exists",
> RW },
>      { "lrp-list", 1, 1, "ROUTER", NULL, nbctl_lrp_list, NULL, "", RO },
>      { "lrp-set-enabled", 2, 2, "PORT STATE", NULL, nbctl_lrp_set_enabled,
> diff --git a/tests/ovn-nbctl.at b/tests/ovn-nbctl.at
> index 975d702..ded21fc 100644
> --- a/tests/ovn-nbctl.at
> +++ b/tests/ovn-nbctl.at
> @@ -756,6 +756,58 @@ AT_CLEANUP
>
>  dnl ---------------------------------------------------------------------
>
> +AT_SETUP([ovn-nbctl - logical router port gateway chassis])
> +OVN_NBCTL_TEST_START
> +AT_CHECK([ovn-nbctl lr-add lr0])
> +AT_CHECK([ovn-nbctl lrp-add lr0 lrp0 00:00:00:01:02:03 192.168.1.1/24])
> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [])
> +
> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lp0 chassis1], [1], [],
> +[ovn-nbctl: lp0: port name not found
> +])
> +
> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lp0], [1], [],
> +[ovn-nbctl: lp0: port name not found
> +])
> +
> +AT_CHECK([ovn-nbctl lrp-del-gateway-chassis lp0 chassis1], [1], [],
> +[ovn-nbctl: lp0: port name not found
> +])
> +
> +AT_CHECK([ovn-nbctl lrp-del-gateway-chassis lrp0 chassis1], [1], [],
> +[ovn-nbctl: chassis chassis1 is not added to logical port lrp0
> +])
> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1])
> +
> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
> +lrp0-chassis1     0
> +])
> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1 10])
> +
> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
> +lrp0-chassis1    10
> +])
> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1 20])
> +
> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
> +lrp0-chassis1    20
> +])
> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis2 5])
> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
> +lrp0-chassis1    20
> +lrp0-chassis2     5
> +])
> +
> +AT_CHECK([ovn-nbctl lrp-del-gateway-chassis lrp0 chassis1])
> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
> +lrp0-chassis2     5
> +])
> +
> +OVN_NBCTL_TEST_STOP
> +AT_CLEANUP
> +
> +dnl ---------------------------------------------------------------------
> +
>  AT_SETUP([ovn-nbctl - logical router port enable and disable])
>  OVN_NBCTL_TEST_START
>
> --
> 2.9.4
>
> _______________________________________________
> dev mailing list
> dev@openvswitch.org
> https://mail.openvswitch.org/mailman/listinfo/ovs-dev
>

Thanks Miguel.
lrp-set-gateway-chassis is also used for updating the priority.
User can initially set priority to some value and later can update with
another value.
For example, user can add chassis with priority 5, later can update it to 10
ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1 5
ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1 10

Thanks
Anil

On Thu, Jul 20, 2017 at 9:14 PM, Miguel Angel Ajo Pelayo <
majopela@redhat.com> wrote:

> One last comment, sorry to come late with more comments:
>
> if lrp-set-gateway-chassis  is additive, shouldn't we rename it to:
>
> lrp-add-gateway-chassis ?
>
> Thanks, and best regards
>
> On Tue, Jul 18, 2017 at 8:05 AM, Venkata Anil Kommaddi <
> vkommadi@redhat.com> wrote:
>
>> From: Venkata Anil <vkommadi@redhat.com>
>>
>> This change adds commands to set, get and delete gateway chassis
>> for logical router port.
>>
>> Signed-off-by: Venkata Anil Kommaddi <vkommadi@redhat.com>
>> ---
>>  ovn/utilities/ovn-nbctl.8.xml |  21 +++++
>>  ovn/utilities/ovn-nbctl.c     | 178 ++++++++++++++++++++++++++++++
>> ++++++++++++
>>  tests/ovn-nbctl.at            |  52 ++++++++++++
>>  3 files changed, 251 insertions(+)
>>
>> diff --git a/ovn/utilities/ovn-nbctl.8.xml b/ovn/utilities/ovn-nbctl.8.xm
>> l
>> index 15012af..ea4c5bb 100644
>> --- a/ovn/utilities/ovn-nbctl.8.xml
>> +++ b/ovn/utilities/ovn-nbctl.8.xml
>> @@ -389,6 +389,27 @@
>>          Prints the administrative state of <var>port</var>, either
>>          <code>enabled</code> or <code>disabled</code>.
>>        </dd>
>> +
>> +      <dt><code>lrp-set-gateway-chassis</code> <var>port</var>
>> <var>chassis</var> [<var>priority</var>]</dt>
>> +      <dd>
>> +       Set gateway chassis for <var>port</var>. <var>chassis</var>
>> +       is the name of the chassis. This creates a gateway chassis entry
>> +       in Gateway_Chassis table. It won't check if chassis really exists
>> +       in OVN_Southbound database. Priority will be set to 0
>> +       if <var>priority</var> is not provided by user.
>> <var>priority</var>
>> +       must be between <code>0</code> and <code>32767</code>, inclusive.
>> +      </dd>
>> +      <dt><code>lrp-del-gateway-chassis</code> <var>port</var>
>> <var>chassis</var></dt>
>> +      <dd>
>> +       Deletes gateway chassis from <var>port</var>.  It is an error if
>> +       gateway chassis with <var>chassis</var> for <var>port</var> does
>> +        not exist.
>> +      </dd>
>> +      <dt><code>lrp-get-gateway-chassis</code> <var>port</var></dt>
>> +      <dd>
>> +        Lists all the gateway chassis with priority within
>> <var>port</var> on
>> +        standard output, one per line, ordered based on priority.
>> +      </dd>
>>      </dl>
>>
>>      <h1>Logical Router Static Route Commands</h1>
>> diff --git a/ovn/utilities/ovn-nbctl.c b/ovn/utilities/ovn-nbctl.c
>> index 0488318..0b48949 100644
>> --- a/ovn/utilities/ovn-nbctl.c
>> +++ b/ovn/utilities/ovn-nbctl.c
>> @@ -376,6 +376,13 @@ Logical router commands:\n\
>>  Logical router port commands:\n\
>>    lrp-add ROUTER PORT MAC NETWORK... [peer=PEER]\n\
>>                              add logical port PORT on ROUTER\n\
>> +  lrp-set-gateway-chassis PORT CHASSIS [PRIORITY]\n\
>> +                            set gateway chassis for port PORT\n\
>> +  lrp-del-gateway-chassis PORT CHASSIS\n\
>> +                            delete gateway chassis from port PORT\n\
>> +  lrp-get-gateway-chassis PORT\n\
>> +                            print the names of all gateway chassis on
>> PORT\n\
>> +                            with PRIORITY\n\
>>    lrp-del PORT              delete PORT from its attached router\n\
>>    lrp-list ROUTER           print the names of all ports on ROUTER\n\
>>    lrp-set-enabled PORT STATE\n\
>> @@ -2528,6 +2535,170 @@ lr_get_name(const struct nbrec_logical_router
>> *lr, char uuid_s[UUID_LEN + 1],
>>      return uuid_s;
>>  }
>>
>> +static const struct nbrec_gateway_chassis*
>> +gc_by_name_or_uuid(struct ctl_context *ctx, const char *id, bool
>> must_exist)
>> +{
>> +    const struct nbrec_gateway_chassis *gc = NULL;
>> +
>> +    struct uuid gc_uuid;
>> +    bool is_uuid = uuid_from_string(&gc_uuid, id);
>> +    if (is_uuid) {
>> +        gc = nbrec_gateway_chassis_get_for_uuid(ctx->idl, &gc_uuid);
>> +    }
>> +
>> +    if (!gc) {
>> +        NBREC_GATEWAY_CHASSIS_FOR_EACH (gc, ctx->idl) {
>> +            if (!strcmp(gc->name, id)) {
>> +                break;
>> +            }
>> +        }
>> +    }
>> +
>> +    if (!gc && must_exist) {
>> +        ctl_fatal("%s: gateway chassis %s not found", id,
>> +                  is_uuid ? "UUID" : "name");
>> +    }
>> +
>> +    return gc;
>> +}
>> +
>> +static void
>> +nbctl_lrp_set_gateway_chassis(struct ctl_context *ctx)
>> +{
>> +    const char *gc_name;
>> +    int64_t priority = 0;
>> +    const char *lrp_name = ctx->argv[1];
>> +    const struct nbrec_logical_router_port *lrp;
>> +    lrp = lrp_by_name_or_uuid(ctx, lrp_name, true);
>> +    if (!lrp) {
>> +        ctl_fatal("router port %s is required", lrp_name);
>> +        return;
>> +    }
>> +
>> +    const char *chassis_name = ctx->argv[2];
>> +    if (ctx->argv[3]) {
>> +        priority = parse_priority(ctx->argv[3]);
>> +    }
>> +
>> +    gc_name = xasprintf("%s-%s", lrp_name, chassis_name);
>> +    const struct nbrec_gateway_chassis *gc;
>> +    gc = gc_by_name_or_uuid(ctx, gc_name, false);
>> +    if (gc) {
>> +        nbrec_gateway_chassis_set_priority(gc, priority);
>> +        return;
>> +    }
>> +
>> +    /* Create the logical gateway chassis. */
>> +    gc = nbrec_gateway_chassis_insert(ctx->txn);
>> +    nbrec_gateway_chassis_set_name(gc, gc_name);
>> +    nbrec_gateway_chassis_set_chassis_name(gc, chassis_name);
>> +    nbrec_gateway_chassis_set_priority(gc, priority);
>> +
>> +    /* Insert the logical gateway chassis into the logical router port.
>> */
>> +    nbrec_logical_router_port_verify_gateway_chassis(lrp);
>> +    struct nbrec_gateway_chassis **new_gc = xmalloc(
>> +        sizeof *new_gc * (lrp->n_gateway_chassis + 1));
>> +    nullable_memcpy(new_gc, lrp->gateway_chassis,
>> +                    sizeof *new_gc * lrp->n_gateway_chassis);
>> +    new_gc[lrp->n_gateway_chassis] = CONST_CAST(
>> +        struct nbrec_gateway_chassis *, gc);
>> +    nbrec_logical_router_port_set_gateway_chassis(
>> +        lrp, new_gc, lrp->n_gateway_chassis + 1);
>> +    free(new_gc);
>> +}
>> +
>> +/* Removes logical router port 'lrp->gateway_chassis[idx]'. */
>> +static void
>> +remove_gc(const struct nbrec_logical_router_port *lrp, size_t idx)
>> +{
>> +    const struct nbrec_gateway_chassis *gc = lrp->gateway_chassis[idx];
>> +    /* First remove 'gc' from the array of gateway_chassis.  This is
>> what will
>> +     * actually cause the gateway chassis to be deleted when the
>> transaction is
>> +     * sent to the database server (due to garbage collection). */
>> +    struct nbrec_gateway_chassis **new_gc
>> +        = xmemdup(lrp->gateway_chassis,
>> +                  sizeof *new_gc * lrp->n_gateway_chassis);
>> +    new_gc[idx] = new_gc[lrp->n_gateway_chassis - 1];
>> +    nbrec_logical_router_port_verify_gateway_chassis(lrp);
>> +    nbrec_logical_router_port_set_gateway_chassis(
>> +        lrp, new_gc, lrp->n_gateway_chassis - 1);
>> +    free(new_gc);
>> +
>> +    /* Delete 'gc' from the IDL.  This won't have a real effect on
>> +     * the database server (the IDL will suppress it in fact) but it
>> +     * means that it won't show up when we iterate with
>> +     * NBREC_GATEWAY_CHASSIS_FOR_EACH later. */
>> +    nbrec_gateway_chassis_delete(gc);
>> +}
>> +
>> +static void
>> +nbctl_lrp_del_gateway_chassis(struct ctl_context *ctx)
>> +{
>> +    const struct nbrec_logical_router_port *lrp;
>> +    lrp = lrp_by_name_or_uuid(ctx, ctx->argv[1], true);
>> +    if (!lrp) {
>> +        return;
>> +    }
>> +    /* Find the lrp that contains 'gc', then delete it. */
>> +    const char *chassis_name = ctx->argv[2];
>> +    for (size_t i = 0; i < lrp->n_gateway_chassis; i++) {
>> +        if (!strncmp(lrp->gateway_chassis[i]->chassis_name,
>> +                    chassis_name,
>> +                    strlen(lrp->gateway_chassis[i]->chassis_name))) {
>> +            remove_gc(lrp, i);
>> +            return;
>> +        }
>> +    }
>> +
>> +    /* Can't happen because of the database schema. */
>> +    ctl_fatal("chassis %s is not added to logical port %s",
>> +              chassis_name, ctx->argv[1]);
>> +}
>> +
>> +/* gateway_chassis ordering
>> + *  */
>> +static int
>> +compare_chassis_prio_(const void *gc1_, const void *gc2_)
>> +{
>> +    const struct nbrec_gateway_chassis *const *gc1p = gc1_;
>> +    const struct nbrec_gateway_chassis *const *gc2p = gc2_;
>> +    const struct nbrec_gateway_chassis *gc1 = *gc1p;
>> +    const struct nbrec_gateway_chassis *gc2 = *gc2p;
>> +
>> +    int prio_diff = gc2->priority - gc1->priority;
>> +    if (!prio_diff) {
>> +        return strcmp(gc2->name, gc1->name);
>> +    }
>> +    return prio_diff;
>> +}
>> +
>> +/* Print a list of gateway chassis. */
>> +static void
>> +nbctl_lrp_get_gateway_chassis(struct ctl_context *ctx)
>> +{
>> +    const char *id = ctx->argv[1];
>> +    const struct nbrec_logical_router_port *lrp;
>> +    const struct nbrec_gateway_chassis **gcs;
>> +    size_t i;
>> +
>> +    lrp = lrp_by_name_or_uuid(ctx, id, true);
>> +
>> +    gcs = xmalloc(sizeof *gcs * lrp->n_gateway_chassis);
>> +    for (i = 0; i < lrp->n_gateway_chassis; i++) {
>> +        gcs[i] = lrp->gateway_chassis[i];
>> +    }
>> +
>> +    qsort(gcs, lrp->n_gateway_chassis, sizeof *gcs,
>> compare_chassis_prio_);
>> +
>> +    for (i = 0; i < lrp->n_gateway_chassis; i++) {
>> +        const struct nbrec_gateway_chassis *gc = gcs[i];
>> +        ds_put_format(&ctx->output, "%s %5"PRId64"\n",
>> +                      gc->name, gc->priority);
>> +    }
>> +
>> +    free(gcs);
>> +}
>> +
>>  static void
>>  nbctl_lrp_add(struct ctl_context *ctx)
>>  {
>> @@ -3413,6 +3584,13 @@ static const struct ctl_command_syntax
>> nbctl_commands[] = {
>>      { "lrp-add", 4, INT_MAX,
>>        "ROUTER PORT MAC NETWORK... [COLUMN[:KEY]=VALUE]...",
>>        NULL, nbctl_lrp_add, NULL, "--may-exist", RW },
>> +    { "lrp-set-gateway-chassis", 2, 3,
>> +      "PORT CHASSIS [PRIORITY]",
>> +      NULL, nbctl_lrp_set_gateway_chassis, NULL, "--may-exist", RW },
>> +    { "lrp-del-gateway-chassis", 2, 2, "PORT CHASSIS", NULL,
>> +      nbctl_lrp_del_gateway_chassis, NULL, "", RW },
>> +    { "lrp-get-gateway-chassis", 1, 1, "PORT", NULL,
>> +      nbctl_lrp_get_gateway_chassis, NULL, "", RO },
>>      { "lrp-del", 1, 1, "PORT", NULL, nbctl_lrp_del, NULL, "--if-exists",
>> RW },
>>      { "lrp-list", 1, 1, "ROUTER", NULL, nbctl_lrp_list, NULL, "", RO },
>>      { "lrp-set-enabled", 2, 2, "PORT STATE", NULL, nbctl_lrp_set_enabled,
>> diff --git a/tests/ovn-nbctl.at b/tests/ovn-nbctl.at
>> index 975d702..ded21fc 100644
>> --- a/tests/ovn-nbctl.at
>> +++ b/tests/ovn-nbctl.at
>> @@ -756,6 +756,58 @@ AT_CLEANUP
>>
>>  dnl ------------------------------------------------------------
>> ---------
>>
>> +AT_SETUP([ovn-nbctl - logical router port gateway chassis])
>> +OVN_NBCTL_TEST_START
>> +AT_CHECK([ovn-nbctl lr-add lr0])
>> +AT_CHECK([ovn-nbctl lrp-add lr0 lrp0 00:00:00:01:02:03 192.168.1.1/24])
>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [])
>> +
>> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lp0 chassis1], [1], [],
>> +[ovn-nbctl: lp0: port name not found
>> +])
>> +
>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lp0], [1], [],
>> +[ovn-nbctl: lp0: port name not found
>> +])
>> +
>> +AT_CHECK([ovn-nbctl lrp-del-gateway-chassis lp0 chassis1], [1], [],
>> +[ovn-nbctl: lp0: port name not found
>> +])
>> +
>> +AT_CHECK([ovn-nbctl lrp-del-gateway-chassis lrp0 chassis1], [1], [],
>> +[ovn-nbctl: chassis chassis1 is not added to logical port lrp0
>> +])
>> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1])
>> +
>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
>> +lrp0-chassis1     0
>> +])
>> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1 10])
>> +
>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
>> +lrp0-chassis1    10
>> +])
>> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1 20])
>> +
>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
>> +lrp0-chassis1    20
>> +])
>> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis2 5])
>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
>> +lrp0-chassis1    20
>> +lrp0-chassis2     5
>> +])
>> +
>> +AT_CHECK([ovn-nbctl lrp-del-gateway-chassis lrp0 chassis1])
>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
>> +lrp0-chassis2     5
>> +])
>> +
>> +OVN_NBCTL_TEST_STOP
>> +AT_CLEANUP
>> +
>> +dnl ------------------------------------------------------------
>> ---------
>> +
>>  AT_SETUP([ovn-nbctl - logical router port enable and disable])
>>  OVN_NBCTL_TEST_START
>>
>> --
>> 2.9.4
>>
>> _______________________________________________
>> dev mailing list
>> dev@openvswitch.org
>> https://mail.openvswitch.org/mailman/listinfo/ovs-dev
>>
>
>

ack, ok, from that point of view, current name makes more sense IMO.

Thank you.

On Thu, Jul 20, 2017 at 6:22 PM, Anil Venkata <anilvenkata@redhat.com>
wrote:

> Thanks Miguel.
> lrp-set-gateway-chassis is also used for updating the priority.
> User can initially set priority to some value and later can update with
> another value.
> For example, user can add chassis with priority 5, later can update it to
> 10
> ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1 5
> ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1 10
>
> Thanks
> Anil
>
> On Thu, Jul 20, 2017 at 9:14 PM, Miguel Angel Ajo Pelayo <
> majopela@redhat.com> wrote:
>
>> One last comment, sorry to come late with more comments:
>>
>> if lrp-set-gateway-chassis  is additive, shouldn't we rename it to:
>>
>> lrp-add-gateway-chassis ?
>>
>> Thanks, and best regards
>>
>> On Tue, Jul 18, 2017 at 8:05 AM, Venkata Anil Kommaddi <
>> vkommadi@redhat.com> wrote:
>>
>>> From: Venkata Anil <vkommadi@redhat.com>
>>>
>>> This change adds commands to set, get and delete gateway chassis
>>> for logical router port.
>>>
>>> Signed-off-by: Venkata Anil Kommaddi <vkommadi@redhat.com>
>>> ---
>>>  ovn/utilities/ovn-nbctl.8.xml |  21 +++++
>>>  ovn/utilities/ovn-nbctl.c     | 178 ++++++++++++++++++++++++++++++
>>> ++++++++++++
>>>  tests/ovn-nbctl.at            |  52 ++++++++++++
>>>  3 files changed, 251 insertions(+)
>>>
>>> diff --git a/ovn/utilities/ovn-nbctl.8.xml
>>> b/ovn/utilities/ovn-nbctl.8.xml
>>> index 15012af..ea4c5bb 100644
>>> --- a/ovn/utilities/ovn-nbctl.8.xml
>>> +++ b/ovn/utilities/ovn-nbctl.8.xml
>>> @@ -389,6 +389,27 @@
>>>          Prints the administrative state of <var>port</var>, either
>>>          <code>enabled</code> or <code>disabled</code>.
>>>        </dd>
>>> +
>>> +      <dt><code>lrp-set-gateway-chassis</code> <var>port</var>
>>> <var>chassis</var> [<var>priority</var>]</dt>
>>> +      <dd>
>>> +       Set gateway chassis for <var>port</var>. <var>chassis</var>
>>> +       is the name of the chassis. This creates a gateway chassis entry
>>> +       in Gateway_Chassis table. It won't check if chassis really exists
>>> +       in OVN_Southbound database. Priority will be set to 0
>>> +       if <var>priority</var> is not provided by user.
>>> <var>priority</var>
>>> +       must be between <code>0</code> and <code>32767</code>, inclusive.
>>> +      </dd>
>>> +      <dt><code>lrp-del-gateway-chassis</code> <var>port</var>
>>> <var>chassis</var></dt>
>>> +      <dd>
>>> +       Deletes gateway chassis from <var>port</var>.  It is an error if
>>> +       gateway chassis with <var>chassis</var> for <var>port</var> does
>>> +        not exist.
>>> +      </dd>
>>> +      <dt><code>lrp-get-gateway-chassis</code> <var>port</var></dt>
>>> +      <dd>
>>> +        Lists all the gateway chassis with priority within
>>> <var>port</var> on
>>> +        standard output, one per line, ordered based on priority.
>>> +      </dd>
>>>      </dl>
>>>
>>>      <h1>Logical Router Static Route Commands</h1>
>>> diff --git a/ovn/utilities/ovn-nbctl.c b/ovn/utilities/ovn-nbctl.c
>>> index 0488318..0b48949 100644
>>> --- a/ovn/utilities/ovn-nbctl.c
>>> +++ b/ovn/utilities/ovn-nbctl.c
>>> @@ -376,6 +376,13 @@ Logical router commands:\n\
>>>  Logical router port commands:\n\
>>>    lrp-add ROUTER PORT MAC NETWORK... [peer=PEER]\n\
>>>                              add logical port PORT on ROUTER\n\
>>> +  lrp-set-gateway-chassis PORT CHASSIS [PRIORITY]\n\
>>> +                            set gateway chassis for port PORT\n\
>>> +  lrp-del-gateway-chassis PORT CHASSIS\n\
>>> +                            delete gateway chassis from port PORT\n\
>>> +  lrp-get-gateway-chassis PORT\n\
>>> +                            print the names of all gateway chassis on
>>> PORT\n\
>>> +                            with PRIORITY\n\
>>>    lrp-del PORT              delete PORT from its attached router\n\
>>>    lrp-list ROUTER           print the names of all ports on ROUTER\n\
>>>    lrp-set-enabled PORT STATE\n\
>>> @@ -2528,6 +2535,170 @@ lr_get_name(const struct nbrec_logical_router
>>> *lr, char uuid_s[UUID_LEN + 1],
>>>      return uuid_s;
>>>  }
>>>
>>> +static const struct nbrec_gateway_chassis*
>>> +gc_by_name_or_uuid(struct ctl_context *ctx, const char *id, bool
>>> must_exist)
>>> +{
>>> +    const struct nbrec_gateway_chassis *gc = NULL;
>>> +
>>> +    struct uuid gc_uuid;
>>> +    bool is_uuid = uuid_from_string(&gc_uuid, id);
>>> +    if (is_uuid) {
>>> +        gc = nbrec_gateway_chassis_get_for_uuid(ctx->idl, &gc_uuid);
>>> +    }
>>> +
>>> +    if (!gc) {
>>> +        NBREC_GATEWAY_CHASSIS_FOR_EACH (gc, ctx->idl) {
>>> +            if (!strcmp(gc->name, id)) {
>>> +                break;
>>> +            }
>>> +        }
>>> +    }
>>> +
>>> +    if (!gc && must_exist) {
>>> +        ctl_fatal("%s: gateway chassis %s not found", id,
>>> +                  is_uuid ? "UUID" : "name");
>>> +    }
>>> +
>>> +    return gc;
>>> +}
>>> +
>>> +static void
>>> +nbctl_lrp_set_gateway_chassis(struct ctl_context *ctx)
>>> +{
>>> +    const char *gc_name;
>>> +    int64_t priority = 0;
>>> +    const char *lrp_name = ctx->argv[1];
>>> +    const struct nbrec_logical_router_port *lrp;
>>> +    lrp = lrp_by_name_or_uuid(ctx, lrp_name, true);
>>> +    if (!lrp) {
>>> +        ctl_fatal("router port %s is required", lrp_name);
>>> +        return;
>>> +    }
>>> +
>>> +    const char *chassis_name = ctx->argv[2];
>>> +    if (ctx->argv[3]) {
>>> +        priority = parse_priority(ctx->argv[3]);
>>> +    }
>>> +
>>> +    gc_name = xasprintf("%s-%s", lrp_name, chassis_name);
>>> +    const struct nbrec_gateway_chassis *gc;
>>> +    gc = gc_by_name_or_uuid(ctx, gc_name, false);
>>> +    if (gc) {
>>> +        nbrec_gateway_chassis_set_priority(gc, priority);
>>> +        return;
>>> +    }
>>> +
>>> +    /* Create the logical gateway chassis. */
>>> +    gc = nbrec_gateway_chassis_insert(ctx->txn);
>>> +    nbrec_gateway_chassis_set_name(gc, gc_name);
>>> +    nbrec_gateway_chassis_set_chassis_name(gc, chassis_name);
>>> +    nbrec_gateway_chassis_set_priority(gc, priority);
>>> +
>>> +    /* Insert the logical gateway chassis into the logical router port.
>>> */
>>> +    nbrec_logical_router_port_verify_gateway_chassis(lrp);
>>> +    struct nbrec_gateway_chassis **new_gc = xmalloc(
>>> +        sizeof *new_gc * (lrp->n_gateway_chassis + 1));
>>> +    nullable_memcpy(new_gc, lrp->gateway_chassis,
>>> +                    sizeof *new_gc * lrp->n_gateway_chassis);
>>> +    new_gc[lrp->n_gateway_chassis] = CONST_CAST(
>>> +        struct nbrec_gateway_chassis *, gc);
>>> +    nbrec_logical_router_port_set_gateway_chassis(
>>> +        lrp, new_gc, lrp->n_gateway_chassis + 1);
>>> +    free(new_gc);
>>> +}
>>> +
>>> +/* Removes logical router port 'lrp->gateway_chassis[idx]'. */
>>> +static void
>>> +remove_gc(const struct nbrec_logical_router_port *lrp, size_t idx)
>>> +{
>>> +    const struct nbrec_gateway_chassis *gc = lrp->gateway_chassis[idx];
>>> +    /* First remove 'gc' from the array of gateway_chassis.  This is
>>> what will
>>> +     * actually cause the gateway chassis to be deleted when the
>>> transaction is
>>> +     * sent to the database server (due to garbage collection). */
>>> +    struct nbrec_gateway_chassis **new_gc
>>> +        = xmemdup(lrp->gateway_chassis,
>>> +                  sizeof *new_gc * lrp->n_gateway_chassis);
>>> +    new_gc[idx] = new_gc[lrp->n_gateway_chassis - 1];
>>> +    nbrec_logical_router_port_verify_gateway_chassis(lrp);
>>> +    nbrec_logical_router_port_set_gateway_chassis(
>>> +        lrp, new_gc, lrp->n_gateway_chassis - 1);
>>> +    free(new_gc);
>>> +
>>> +    /* Delete 'gc' from the IDL.  This won't have a real effect on
>>> +     * the database server (the IDL will suppress it in fact) but it
>>> +     * means that it won't show up when we iterate with
>>> +     * NBREC_GATEWAY_CHASSIS_FOR_EACH later. */
>>> +    nbrec_gateway_chassis_delete(gc);
>>> +}
>>> +
>>> +static void
>>> +nbctl_lrp_del_gateway_chassis(struct ctl_context *ctx)
>>> +{
>>> +    const struct nbrec_logical_router_port *lrp;
>>> +    lrp = lrp_by_name_or_uuid(ctx, ctx->argv[1], true);
>>> +    if (!lrp) {
>>> +        return;
>>> +    }
>>> +    /* Find the lrp that contains 'gc', then delete it. */
>>> +    const char *chassis_name = ctx->argv[2];
>>> +    for (size_t i = 0; i < lrp->n_gateway_chassis; i++) {
>>> +        if (!strncmp(lrp->gateway_chassis[i]->chassis_name,
>>> +                    chassis_name,
>>> +                    strlen(lrp->gateway_chassis[i]->chassis_name))) {
>>> +            remove_gc(lrp, i);
>>> +            return;
>>> +        }
>>> +    }
>>> +
>>> +    /* Can't happen because of the database schema. */
>>> +    ctl_fatal("chassis %s is not added to logical port %s",
>>> +              chassis_name, ctx->argv[1]);
>>> +}
>>> +
>>> +/* gateway_chassis ordering
>>> + *  */
>>> +static int
>>> +compare_chassis_prio_(const void *gc1_, const void *gc2_)
>>> +{
>>> +    const struct nbrec_gateway_chassis *const *gc1p = gc1_;
>>> +    const struct nbrec_gateway_chassis *const *gc2p = gc2_;
>>> +    const struct nbrec_gateway_chassis *gc1 = *gc1p;
>>> +    const struct nbrec_gateway_chassis *gc2 = *gc2p;
>>> +
>>> +    int prio_diff = gc2->priority - gc1->priority;
>>> +    if (!prio_diff) {
>>> +        return strcmp(gc2->name, gc1->name);
>>> +    }
>>> +    return prio_diff;
>>> +}
>>> +
>>> +/* Print a list of gateway chassis. */
>>> +static void
>>> +nbctl_lrp_get_gateway_chassis(struct ctl_context *ctx)
>>> +{
>>> +    const char *id = ctx->argv[1];
>>> +    const struct nbrec_logical_router_port *lrp;
>>> +    const struct nbrec_gateway_chassis **gcs;
>>> +    size_t i;
>>> +
>>> +    lrp = lrp_by_name_or_uuid(ctx, id, true);
>>> +
>>> +    gcs = xmalloc(sizeof *gcs * lrp->n_gateway_chassis);
>>> +    for (i = 0; i < lrp->n_gateway_chassis; i++) {
>>> +        gcs[i] = lrp->gateway_chassis[i];
>>> +    }
>>> +
>>> +    qsort(gcs, lrp->n_gateway_chassis, sizeof *gcs,
>>> compare_chassis_prio_);
>>> +
>>> +    for (i = 0; i < lrp->n_gateway_chassis; i++) {
>>> +        const struct nbrec_gateway_chassis *gc = gcs[i];
>>> +        ds_put_format(&ctx->output, "%s %5"PRId64"\n",
>>> +                      gc->name, gc->priority);
>>> +    }
>>> +
>>> +    free(gcs);
>>> +}
>>> +
>>>  static void
>>>  nbctl_lrp_add(struct ctl_context *ctx)
>>>  {
>>> @@ -3413,6 +3584,13 @@ static const struct ctl_command_syntax
>>> nbctl_commands[] = {
>>>      { "lrp-add", 4, INT_MAX,
>>>        "ROUTER PORT MAC NETWORK... [COLUMN[:KEY]=VALUE]...",
>>>        NULL, nbctl_lrp_add, NULL, "--may-exist", RW },
>>> +    { "lrp-set-gateway-chassis", 2, 3,
>>> +      "PORT CHASSIS [PRIORITY]",
>>> +      NULL, nbctl_lrp_set_gateway_chassis, NULL, "--may-exist", RW },
>>> +    { "lrp-del-gateway-chassis", 2, 2, "PORT CHASSIS", NULL,
>>> +      nbctl_lrp_del_gateway_chassis, NULL, "", RW },
>>> +    { "lrp-get-gateway-chassis", 1, 1, "PORT", NULL,
>>> +      nbctl_lrp_get_gateway_chassis, NULL, "", RO },
>>>      { "lrp-del", 1, 1, "PORT", NULL, nbctl_lrp_del, NULL,
>>> "--if-exists", RW },
>>>      { "lrp-list", 1, 1, "ROUTER", NULL, nbctl_lrp_list, NULL, "", RO },
>>>      { "lrp-set-enabled", 2, 2, "PORT STATE", NULL,
>>> nbctl_lrp_set_enabled,
>>> diff --git a/tests/ovn-nbctl.at b/tests/ovn-nbctl.at
>>> index 975d702..ded21fc 100644
>>> --- a/tests/ovn-nbctl.at
>>> +++ b/tests/ovn-nbctl.at
>>> @@ -756,6 +756,58 @@ AT_CLEANUP
>>>
>>>  dnl ------------------------------------------------------------
>>> ---------
>>>
>>> +AT_SETUP([ovn-nbctl - logical router port gateway chassis])
>>> +OVN_NBCTL_TEST_START
>>> +AT_CHECK([ovn-nbctl lr-add lr0])
>>> +AT_CHECK([ovn-nbctl lrp-add lr0 lrp0 00:00:00:01:02:03 192.168.1.1/24])
>>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [])
>>> +
>>> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lp0 chassis1], [1], [],
>>> +[ovn-nbctl: lp0: port name not found
>>> +])
>>> +
>>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lp0], [1], [],
>>> +[ovn-nbctl: lp0: port name not found
>>> +])
>>> +
>>> +AT_CHECK([ovn-nbctl lrp-del-gateway-chassis lp0 chassis1], [1], [],
>>> +[ovn-nbctl: lp0: port name not found
>>> +])
>>> +
>>> +AT_CHECK([ovn-nbctl lrp-del-gateway-chassis lrp0 chassis1], [1], [],
>>> +[ovn-nbctl: chassis chassis1 is not added to logical port lrp0
>>> +])
>>> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1])
>>> +
>>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
>>> +lrp0-chassis1     0
>>> +])
>>> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1 10])
>>> +
>>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
>>> +lrp0-chassis1    10
>>> +])
>>> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis1 20])
>>> +
>>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
>>> +lrp0-chassis1    20
>>> +])
>>> +AT_CHECK([ovn-nbctl lrp-set-gateway-chassis lrp0 chassis2 5])
>>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
>>> +lrp0-chassis1    20
>>> +lrp0-chassis2     5
>>> +])
>>> +
>>> +AT_CHECK([ovn-nbctl lrp-del-gateway-chassis lrp0 chassis1])
>>> +AT_CHECK([ovn-nbctl lrp-get-gateway-chassis lrp0], [0], [dnl
>>> +lrp0-chassis2     5
>>> +])
>>> +
>>> +OVN_NBCTL_TEST_STOP
>>> +AT_CLEANUP
>>> +
>>> +dnl ------------------------------------------------------------
>>> ---------
>>> +
>>>  AT_SETUP([ovn-nbctl - logical router port enable and disable])
>>>  OVN_NBCTL_TEST_START
>>>
>>> --
>>> 2.9.4
>>>
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>>> dev@openvswitch.org
>>> https://mail.openvswitch.org/mailman/listinfo/ovs-dev
>>>
>>
>>
>