[ovs-dev] [RFC ovn 4/5] ovn-northd: Extend metering to Controller-Events

Lorenzo Bianconi lorenzo.bianconi at redhat.com
Sat Apr 24 10:39:34 UTC 2021


From: Dumitru Ceara <dceara at redhat.com>

Co-authored-by: Lorenzo Bianconi <lorenzo.bianconi at redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi at redhat.com>
Signed-off-by: Dumitru Ceara <dceara at redhat.com>
---
 include/ovn/actions.h |  1 -
 lib/actions.c         | 50 ++++++++-----------------------------------
 northd/ovn-northd.c   | 18 ++++++++--------
 tests/ovn.at          |  4 ++--
 4 files changed, 20 insertions(+), 53 deletions(-)

diff --git a/include/ovn/actions.h b/include/ovn/actions.h
index ab03df12c..b2f2f57c6 100644
--- a/include/ovn/actions.h
+++ b/include/ovn/actions.h
@@ -393,7 +393,6 @@ struct ovnact_controller_event {
     int event_type;   /* controller event type */
     struct ovnact_gen_option *options;
     size_t n_options;
-    char *meter;
 };
 
 /* OVNACT_BIND_VPORT. */
diff --git a/lib/actions.c b/lib/actions.c
index 155b4a45a..f0291afef 100644
--- a/lib/actions.c
+++ b/lib/actions.c
@@ -1613,9 +1613,6 @@ format_TRIGGER_EVENT(const struct ovnact_controller_event *event,
 {
     ds_put_format(s, "trigger_event(event = \"%s\"",
                   event_to_string(event->event_type));
-    if (event->meter) {
-        ds_put_format(s, ", meter = \"%s\"", event->meter);
-    }
     for (const struct ovnact_gen_option *o = event->options;
          o < &event->options[event->n_options]; o++) {
         ds_put_cstr(s, ", ");
@@ -1790,24 +1787,11 @@ encode_event_empty_lb_backends_opts(struct ofpbuf *ofpacts,
 
 static void
 encode_TRIGGER_EVENT(const struct ovnact_controller_event *event,
-                     const struct ovnact_encode_params *ep OVS_UNUSED,
+                     const struct ovnact_encode_params *ep,
                      struct ofpbuf *ofpacts)
 {
-    uint32_t meter_id = NX_CTLR_NO_METER;
-    size_t oc_offset;
-
-    if (event->meter) {
-        meter_id = ovn_extend_table_assign_id(ep->meter_table, event->meter,
-                                              ep->lflow_uuid);
-        if (meter_id == EXT_TABLE_ID_INVALID) {
-            VLOG_WARN("Unable to assign id for trigger meter: %s",
-                      event->meter);
-            return;
-        }
-    }
-
-    oc_offset = encode_start_controller_op(ACTION_OPCODE_EVENT, false,
-                                           meter_id, ofpacts);
+    size_t oc_offset = encode_start_controller_op(ACTION_OPCODE_EVENT, false,
+                                                  ep->ctrl_meter_id, ofpacts);
     ovs_be32 ofs = htonl(event->event_type);
     ofpbuf_put(ofpacts, &ofs, sizeof ofs);
 
@@ -2341,27 +2325,12 @@ parse_trigger_event(struct action_context *ctx,
                                      sizeof *event->options);
         }
 
-        if (lexer_match_id(ctx->lexer, "meter")) {
-            if (!lexer_force_match(ctx->lexer, LEX_T_EQUALS)) {
-                return;
-            }
-            /* If multiple meters are given, use the most recent. */
-            if (ctx->lexer->token.type == LEX_T_STRING &&
-                strlen(ctx->lexer->token.s)) {
-                free(event->meter);
-                event->meter = xstrdup(ctx->lexer->token.s);
-            } else if (ctx->lexer->token.type != LEX_T_STRING) {
-                lexer_syntax_error(ctx->lexer, "expecting string");
-                return;
-            }
-            lexer_get(ctx->lexer);
-        } else {
-            struct ovnact_gen_option *o = &event->options[event->n_options++];
-            memset(o, 0, sizeof *o);
-            parse_gen_opt(ctx, o,
-                    &ctx->pp->controller_event_opts->event_opts[event_type],
-                    event_to_string(event_type));
-            }
+        struct ovnact_gen_option *o = &event->options[event->n_options++];
+        memset(o, 0, sizeof *o);
+        parse_gen_opt(ctx, o,
+                      &ctx->pp->controller_event_opts->event_opts[event_type],
+                      event_to_string(event_type));
+
         if (ctx->lexer->error) {
             return;
         }
@@ -2382,7 +2351,6 @@ static void
 ovnact_controller_event_free(struct ovnact_controller_event *event)
 {
     free_gen_options(event->options, event->n_options);
-    free(event->meter);
 }
 
 static void
diff --git a/northd/ovn-northd.c b/northd/ovn-northd.c
index 3824ce3f6..6d0007b4e 100644
--- a/northd/ovn-northd.c
+++ b/northd/ovn-northd.c
@@ -5082,11 +5082,7 @@ build_empty_lb_event_flow(struct ovn_datapath *od, struct hmap *lflows,
 
     bool ipv4 = IN6_IS_ADDR_V4MAPPED(&lb_vip->vip);
     struct ds match = DS_EMPTY_INITIALIZER;
-    char *meter = "", *action;
-
-    if (meter_groups && shash_find(meter_groups, "event-elb")) {
-        meter = "event-elb";
-    }
+    char *action;
 
     ds_put_format(&match, "ip%s.dst == %s && %s",
                   ipv4 ? "4": "6", lb_vip->vip_str, lb->protocol);
@@ -5100,14 +5096,18 @@ build_empty_lb_event_flow(struct ovn_datapath *od, struct hmap *lflows,
     }
 
     action = xasprintf("trigger_event(event = \"%s\", "
-                       "meter = \"%s\", vip = \"%s\", "
+                       "vip = \"%s\", "
                        "protocol = \"%s\", "
                        "load_balancer = \"" UUID_FMT "\");",
                        event_to_string(OVN_EVENT_EMPTY_LB_BACKENDS),
-                       meter, vip, lb->protocol,
+                       vip, lb->protocol,
                        UUID_ARGS(&lb->header_.uuid));
-    ovn_lflow_add_with_hint(lflows, od, pl, 130, ds_cstr(&match), action,
-                            &lb->header_);
+
+    const struct nbrec_copp *copp = (od->nbr ? od->nbr->copp : od->nbs->copp);
+    ovn_lflow_add_with_hint__(lflows, od, pl, 130, ds_cstr(&match), action,
+                              copp_meter_get(COPP_EVENT_ELB, copp,
+                                             meter_groups),
+                              &lb->header_);
     ds_destroy(&match);
     if (lb_vip->vip_port) {
         free(vip);
diff --git a/tests/ovn.at b/tests/ovn.at
index 3d0a7f63f..011edd92a 100644
--- a/tests/ovn.at
+++ b/tests/ovn.at
@@ -1661,8 +1661,7 @@ trigger_event(event = "empty_lb_backends", vip = "10.0.0.1:80", protocol = "tcp"
     encodes as controller(userdata=00.00.00.0f.00.00.00.00.00.00.00.00.00.01.00.0b.31.30.2e.30.2e.30.2e.31.3a.38.30.00.02.00.03.74.63.70.00.03.00.24.31.32.33.34.35.36.37.38.2d.61.62.63.64.2d.39.38.37.36.2d.66.65.64.63.2d.31.31.31.31.39.66.38.65.37.64.36.63)
 
 trigger_event(event = "empty_lb_backends", meter="event-elb" vip = "10.0.0.1:80", protocol = "tcp", load_balancer = "12345678-abcd-9876-fedc-11119f8e7d6c");
-    formats as trigger_event(event = "empty_lb_backends", meter = "event-elb", vip = "10.0.0.1:80", protocol = "tcp", load_balancer = "12345678-abcd-9876-fedc-11119f8e7d6c");
-    encodes as controller(userdata=00.00.00.0f.00.00.00.00.00.00.00.00.00.01.00.0b.31.30.2e.30.2e.30.2e.31.3a.38.30.00.02.00.03.74.63.70.00.03.00.24.31.32.33.34.35.36.37.38.2d.61.62.63.64.2d.39.38.37.36.2d.66.65.64.63.2d.31.31.31.31.39.66.38.65.37.64.36.63,meter_id=5)
+    Syntax error at `meter' expecting empty_lb_backends option name.
 
 # Testing invalid vip results in extra error messages from socket-util.c
 trigger_event(event = "empty_lb_backends", vip = "10.0.0.1:80", protocol = "aarp", load_balancer = "12345678-abcd-9876-fedc-11119f8e7d6c");
@@ -17629,6 +17628,7 @@ ovn-nbctl ls-lb-add sw0 lb2
 uuid_lb2=$(ovn-nbctl --bare --columns=_uuid find load_balancer name=lb2)
 
 ovn-nbctl --wait=hv meter-add event-elb drop 100 pktps 10
+ovn-nbctl --wait=hv ls-copp-add sw0 event-elb event-elb
 
 OVN_POPULATE_ARP
 wait_for_ports_up
-- 
2.30.2



More information about the dev mailing list