> Hi Lorenzo, I have one finding below.
> 
> On 5/15/23 06:03, Lorenzo Bianconi wrote:
> > Introduce ovsport_lookup_by_name and ovsport_lookup_by_qos routines in
> > order to speed-up ovs port lookup based on port name or qos.
> > 
> > Acked-By: Ihar Hrachyshka <[email protected]>
> > Tested-by: Rodolfo Alonso <[email protected]>
> > Signed-off-by: Lorenzo Bianconi <[email protected]>
> > ---
> >   controller/binding.c        | 33 ++++++++++++---------------------
> >   controller/binding.h        |  2 +-
> >   controller/ovn-controller.c | 13 +++++++++----
> >   controller/ovsport.c        | 32 ++++++++++++++++++++++++++++++++
> >   controller/ovsport.h        |  5 +++++
> >   5 files changed, 59 insertions(+), 26 deletions(-)
> > 
> > diff --git a/controller/binding.c b/controller/binding.c
> > index 7ec3d5d5d..db25ee391 100644
> > --- a/controller/binding.c
> > +++ b/controller/binding.c
> > @@ -36,6 +36,7 @@
> >   #include "lport.h"
> >   #include "ovn-controller.h"
> >   #include "patch.h"
> > +#include "ovsport.h"
> >   VLOG_DEFINE_THIS_MODULE(binding);
> > @@ -293,7 +294,7 @@ add_ovs_qos_table_entry(struct ovsdb_idl_txn 
> > *ovs_idl_txn,
> >   static void
> >   remove_stale_qos_entry(struct ovsdb_idl_txn *ovs_idl_txn,
> >                          const struct sbrec_port_binding *pb,
> > -                       const struct ovsrec_port_table *port_table,
> > +                       struct ovsdb_idl_index *ovsrec_port_by_qos,
> >                          const struct ovsrec_qos_table *qos_table,
> >                          struct hmap *queue_map)
> >   {
> > @@ -326,13 +327,8 @@ remove_stale_qos_entry(struct ovsdb_idl_txn 
> > *ovs_idl_txn,
> >               ovsrec_queue_delete(queue);
> >               if (qos->n_queues == 1) {
> > -                const struct ovsrec_port *port = NULL, *iter;
> > -                OVSREC_PORT_TABLE_FOR_EACH (iter, port_table) {
> > -                    if (iter->qos == qos) {
> > -                        port = iter;
> > -                        break;
> > -                    }
> > -                }
> > +                const struct ovsrec_port *port =
> > +                    ovsport_lookup_by_qos(ovsrec_port_by_qos, qos);
> >                   if (port) {
> >                       ovsrec_port_set_qos(port, NULL);
> >                   }
> > @@ -361,9 +357,8 @@ configure_qos(const struct sbrec_port_binding *pb,
> >       if ((!min_rate && !max_rate && !burst) || !queue_id) {
> >           /* Qos is not configured for this port. */
> >           remove_stale_qos_entry(b_ctx_in->ovs_idl_txn, pb,
> > -                               b_ctx_in->port_table,
> > -                               b_ctx_in->qos_table,
> > -                               b_ctx_out->qos_map);
> > +                               b_ctx_in->ovsrec_port_by_qos,
> > +                               b_ctx_in->qos_table, b_ctx_out->qos_map);
> >           return;
> >       }
> > @@ -403,7 +398,7 @@ configure_qos(const struct sbrec_port_binding *pb,
> >   static void
> >   ovs_qos_entries_gc(struct ovsdb_idl_txn *ovs_idl_txn,
> > -                   const struct ovsrec_port_table *port_table,
> > +                   struct ovsdb_idl_index *ovsrec_port_by_qos,
> >                      const struct ovsrec_qos_table *qos_table,
> >                      struct hmap *queue_map)
> >   {
> > @@ -435,13 +430,8 @@ ovs_qos_entries_gc(struct ovsdb_idl_txn *ovs_idl_txn,
> >           }
> >           if (n_queue_deleted && n_queue_deleted == n_queues) {
> > -            const struct ovsrec_port *port = NULL, *iter;
> > -            OVSREC_PORT_TABLE_FOR_EACH (iter, port_table) {
> > -                if (iter->qos == qos) {
> > -                    port = iter;
> > -                    break;
> > -                }
> > -            }
> > +            const struct ovsrec_port *port =
> > +                ovsport_lookup_by_qos(ovsrec_port_by_qos, qos);
> >               if (port) {
> >                   ovsrec_port_set_qos(port, NULL);
> >               }
> > @@ -2165,7 +2155,7 @@ binding_run(struct binding_ctx_in *b_ctx_in, struct 
> > binding_ctx_out *b_ctx_out)
> >       shash_destroy(&bridge_mappings);
> >       /* Remove stale QoS entries. */
> > -    ovs_qos_entries_gc(b_ctx_in->ovs_idl_txn, b_ctx_in->port_table,
> > +    ovs_qos_entries_gc(b_ctx_in->ovs_idl_txn, b_ctx_in->ovsrec_port_by_qos,
> >                          b_ctx_in->qos_table, b_ctx_out->qos_map);
> >       cleanup_claimed_port_timestamps();
> > @@ -3019,7 +3009,8 @@ binding_handle_port_binding_changes(struct 
> > binding_ctx_in *b_ctx_in,
> >               shash_add(&deleted_other_pbs, pb->logical_port, pb);
> >           }
> > -        remove_stale_qos_entry(b_ctx_in->ovs_idl_txn, pb, 
> > b_ctx_in->port_table,
> > +        remove_stale_qos_entry(b_ctx_in->ovs_idl_txn, pb,
> > +                               b_ctx_in->ovsrec_port_by_qos,
> >                                  b_ctx_in->qos_table, b_ctx_out->qos_map);
> >       }
> > diff --git a/controller/binding.h b/controller/binding.h
> > index 87ee7b540..6b97bcff0 100644
> > --- a/controller/binding.h
> > +++ b/controller/binding.h
> > @@ -46,7 +46,7 @@ struct binding_ctx_in {
> >       struct ovsdb_idl_index *sbrec_datapath_binding_by_key;
> >       struct ovsdb_idl_index *sbrec_port_binding_by_datapath;
> >       struct ovsdb_idl_index *sbrec_port_binding_by_name;
> > -    const struct ovsrec_port_table *port_table;
> > +    struct ovsdb_idl_index *ovsrec_port_by_qos;
> >       const struct ovsrec_qos_table *qos_table;
> >       const struct sbrec_port_binding_table *port_binding_table;
> >       const struct ovsrec_bridge *br_int;
> > diff --git a/controller/ovn-controller.c b/controller/ovn-controller.c
> > index 3ddf4795e..1dd1099a4 100644
> > --- a/controller/ovn-controller.c
> > +++ b/controller/ovn-controller.c
> > @@ -1498,9 +1498,6 @@ init_binding_ctx(struct engine_node *node,
> >           = chassis_lookup_by_name(sbrec_chassis_by_name, chassis_id);
> >       ovs_assert(chassis);
> > -    const struct ovsrec_port_table *port_table =
> > -        EN_OVSDB_GET(engine_get_input("OVS_port", node));
> > -
> >       struct ed_type_ovs_interface_shadow *iface_shadow =
> >           engine_get_input_data("ovs_interface_shadow", node);
> > @@ -1525,6 +1522,10 @@ init_binding_ctx(struct engine_node *node,
> >                   engine_get_input("SB_port_binding", node),
> >                   "datapath");
> > +    struct ovsdb_idl_index *ovsrec_port_by_qos =
> > +        engine_ovsdb_node_get_index(
> > +                engine_get_input("OVS_port", node), "qos");
> > +
> >       struct controller_engine_ctx *ctrl_ctx = 
> > engine_get_context()->client_ctx;
> >       b_ctx_in->ovnsb_idl_txn = engine_get_context()->ovnsb_idl_txn;
> > @@ -1532,7 +1533,7 @@ init_binding_ctx(struct engine_node *node,
> >       b_ctx_in->sbrec_datapath_binding_by_key = 
> > sbrec_datapath_binding_by_key;
> >       b_ctx_in->sbrec_port_binding_by_datapath = 
> > sbrec_port_binding_by_datapath;
> >       b_ctx_in->sbrec_port_binding_by_name = sbrec_port_binding_by_name;
> > -    b_ctx_in->port_table = port_table;
> > +    b_ctx_in->ovsrec_port_by_qos = ovsrec_port_by_qos;
> >       b_ctx_in->iface_table = iface_shadow->iface_table;
> >       b_ctx_in->iface_table_external_ids_old =
> >           &iface_shadow->iface_table_external_ids_old;
> > @@ -4478,6 +4479,9 @@ main(int argc, char *argv[])
> >       struct ovsdb_idl_index *ovsrec_port_by_name
> >           = ovsdb_idl_index_create1(ovs_idl_loop.idl,
> >                                     &ovsrec_port_col_name);
> > +    struct ovsdb_idl_index *ovsrec_port_by_qos
> > +        = ovsdb_idl_index_create1(ovs_idl_loop.idl,
> > +                                  &ovsrec_port_col_qos);
> >       struct ovsdb_idl_index *ovsrec_flow_sample_collector_set_by_id
> >           = ovsdb_idl_index_create2(ovs_idl_loop.idl,
> >                                     
> > &ovsrec_flow_sample_collector_set_col_bridge,
> > @@ -4832,6 +4836,7 @@ main(int argc, char *argv[])
> >                                   
> > sbrec_chassis_template_var_index_by_chassis);
> >       engine_ovsdb_node_add_index(&en_ovs_flow_sample_collector_set, "id",
> >                                   ovsrec_flow_sample_collector_set_by_id);
> > +    engine_ovsdb_node_add_index(&en_ovs_port, "qos", ovsrec_port_by_qos);
> >       struct ed_type_lflow_output *lflow_output_data =
> >           engine_get_internal_data(&en_lflow_output);
> > diff --git a/controller/ovsport.c b/controller/ovsport.c
> > index ec38c3fca..ba260dee6 100644
> > --- a/controller/ovsport.c
> > +++ b/controller/ovsport.c
> > @@ -216,6 +216,38 @@ ovsrec_port * ovsport_lookup_by_interface(
> >                                           interfaces, 1);
> >   }
> > +const struct ovsrec_port *
> > +ovsport_lookup_by_name(struct ovsdb_idl_index *ovsrec_port_by_name,
> > +                       const char *name)
> > +{
> > +    const struct ovsrec_port *port =
> > +        ovsrec_port_index_init_row(ovsrec_port_by_name);
> > +    ovsrec_port_index_set_name(port, name);
> > +
> > +    const struct ovsrec_port *retval =
> > +        ovsrec_port_index_find(ovsrec_port_by_name, port);
> > +
> > +    ovsrec_port_index_destroy_row(port);
> > +
> > +    return retval;
> > +}
> > +
> > +const struct ovsrec_port *
> > +ovsport_lookup_by_qos(struct ovsdb_idl_index *ovsrec_port_by_qos,
> > +                      const struct ovsrec_qos *qos)
> > +{
> > +    const struct ovsrec_port *port =
> > +        ovsrec_port_index_init_row(ovsrec_port_by_qos);
> > +    ovsrec_port_index_set_qos(port, qos);
> > +
> > +    const struct ovsrec_port *retval =
> > +        ovsrec_port_index_find(ovsrec_port_by_qos, port);
> > +
> > +    ovsrec_port_index_destroy_row(port);
> > +
> > +    return retval;
> > +}
> > +
> >   /* Update an interface map column with the key/value pairs present in the
> >    * provided smap, only applying changes when necessary. */
> >   static void
> > diff --git a/controller/ovsport.h b/controller/ovsport.h
> > index e355ff7ff..dfd4f13f0 100644
> > --- a/controller/ovsport.h
> > +++ b/controller/ovsport.h
> > @@ -33,6 +33,7 @@ struct ovsrec_bridge;
> >   struct ovsrec_port;
> >   struct ovsrec_interface;
> >   struct ovsdb_idl_index;
> > +struct ovsrec_qos;
> >   void ovsport_create(struct ovsdb_idl_txn *ovs_idl_txn,
> >                       const struct ovsrec_bridge *bridge,
> > @@ -56,5 +57,9 @@ const struct ovsrec_port * ovsport_lookup_by_interfaces(
> >           const size_t n_interfaces);
> >   const struct ovsrec_port * ovsport_lookup_by_interface(
> >           struct ovsdb_idl_index *, struct ovsrec_interface *);
> > +const struct ovsrec_port * ovsport_lookup_by_name(
> > +        struct ovsdb_idl_index *, const char *);
> 
> ovsport_lookup_by_name() is declared and defined but never used.

ack, it was used in a previous version but now we can get rid ot it.

Regards,
Lorenzo

> 
> > +const struct ovsrec_port * ovsport_lookup_by_qos(
> > +        struct ovsdb_idl_index *, const struct ovsrec_qos *);
> >   #endif /* lib/ovsport.h */
> 
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