[ovs-dev] [PATCH ovn RFC v4 02/24] Move out Table 1 operations into functions

anton.ivanov at cambridgegreys.com anton.ivanov at cambridgegreys.com
Wed Sep 2 14:59:28 UTC 2020


From: Anton Ivanov <anton.ivanov at cambridgegreys.com>

This moves out the operations used to learn MACs from ARP/ND
into separate iterator functions.

Signed-off-by: Anton Ivanov <anton.ivanov at cambridgegreys.com>
---
 northd/ovn-northd.c | 73 ++++++++++++++++++++++++++++-----------------
 1 file changed, 45 insertions(+), 28 deletions(-)

diff --git a/northd/ovn-northd.c b/northd/ovn-northd.c
index cb77296c4..3c3c904b6 100644
--- a/northd/ovn-northd.c
+++ b/northd/ovn-northd.c
@@ -8474,33 +8474,11 @@ build_lrouter_flows_ingress_table_0_op(
 }
 
 static void
-build_lrouter_flows(struct hmap *datapaths, struct hmap *ports,
-                    struct hmap *lflows, struct shash *meter_groups,
-                    struct hmap *lbs)
+build_lrouter_flows_arp_nd_mac_learn_od(struct ovn_datapath *od, struct hmap *lflows)
 {
-    /* This flow table structure is documented in ovn-northd(8), so please
-     * update ovn-northd.8.xml if you change anything. */
-
     struct ds match = DS_EMPTY_INITIALIZER;
     struct ds actions = DS_EMPTY_INITIALIZER;
-
-    struct ovn_datapath *od;
-    HMAP_FOR_EACH (od, key_node, datapaths) {
-        build_lrouter_flows_ingress_table_0_od(od, lflows);
-    }
-
-    struct ovn_port *op;
-    HMAP_FOR_EACH (op, key_node, ports) {
-        build_lrouter_flows_ingress_table_0_op(op, lflows);
-    }
-
-    /* Logical router ingress table 1: LOOKUP_NEIGHBOR and
-     * table 2: LEARN_NEIGHBOR. */
-    HMAP_FOR_EACH (od, key_node, datapaths) {
-        if (!od->nbr) {
-            continue;
-        }
-
+    if (od->nbr) {
         /* Learn MAC bindings from ARP/IPv6 ND.
          *
          * For ARP packets, table LOOKUP_NEIGHBOR does a lookup for the
@@ -8586,11 +8564,17 @@ build_lrouter_flows(struct hmap *datapaths, struct hmap *ports,
         ovn_lflow_add(lflows, od, S_ROUTER_IN_LEARN_NEIGHBOR, 90,
                       "nd_ns", "put_nd(inport, ip6.src, nd.sll); next;");
     }
+    ds_destroy(&match);
+    ds_destroy(&actions);
+}
 
-    HMAP_FOR_EACH (op, key_node, ports) {
-        if (!op->nbrp) {
-            continue;
-        }
+static void
+build_lrouter_flows_arp_nd_mac_learn_op(struct ovn_port *op, struct hmap *lflows)
+{
+    struct ds match = DS_EMPTY_INITIALIZER;
+    struct ds actions = DS_EMPTY_INITIALIZER;
+
+    if (op->nbrp) {
 
         bool learn_from_arp_request = smap_get_bool(&op->od->nbr->options,
             "always_learn_from_arp_request", true);
@@ -8647,6 +8631,39 @@ build_lrouter_flows(struct hmap *datapaths, struct hmap *ports,
         }
     }
 
+    ds_destroy(&match);
+    ds_destroy(&actions);
+}
+
+static void
+build_lrouter_flows(struct hmap *datapaths, struct hmap *ports,
+                    struct hmap *lflows, struct shash *meter_groups,
+                    struct hmap *lbs)
+{
+    /* This flow table structure is documented in ovn-northd(8), so please
+     * update ovn-northd.8.xml if you change anything. */
+
+    struct ds match = DS_EMPTY_INITIALIZER;
+    struct ds actions = DS_EMPTY_INITIALIZER;
+
+    struct ovn_datapath *od;
+    HMAP_FOR_EACH (od, key_node, datapaths) {
+        build_lrouter_flows_ingress_table_0_od(od, lflows);
+    }
+
+    struct ovn_port *op;
+    HMAP_FOR_EACH (op, key_node, ports) {
+        build_lrouter_flows_ingress_table_0_op(op, lflows);
+    }
+
+    HMAP_FOR_EACH (od, key_node, datapaths) {
+        build_lrouter_flows_arp_nd_mac_learn_od(od, lflows);
+    }
+
+    HMAP_FOR_EACH (op, key_node, ports) {
+        build_lrouter_flows_arp_nd_mac_learn_op(op, lflows);
+    }
+
     /* Logical router ingress table 3: IP Input. */
     HMAP_FOR_EACH (od, key_node, datapaths) {
         if (!od->nbr) {
-- 
2.20.1



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