From: Joe Stringer <joestrin...@nicira.com>
This should assist testing of datapath performance, as it allows us to
skip "warming up" the flow limit value.
Signed-off-by: Joe Stringer <joestrin...@nicira.com>
Signed-off-by: Ben Pfaff <b...@nicira.com>
---
ofproto/ofproto-dpif-upcall.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/ofproto/ofproto-dpif-upcall.c b/ofproto/ofproto-dpif-upcall.c
index 33033a4..15be818 100644
--- a/ofproto/ofproto-dpif-upcall.c
+++ b/ofproto/ofproto-dpif-upcall.c
@@ -239,6 +239,8 @@ static void upcall_unixctl_disable_megaflows(struct
unixctl_conn *, int argc,
const char *argv[], void *aux);
static void upcall_unixctl_enable_megaflows(struct unixctl_conn *, int argc,
const char *argv[], void *aux);
+static void upcall_unixctl_set_flow_limit(struct unixctl_conn *conn, int argc,
+ const char *argv[], void *aux);
static void ukey_delete(struct revalidator *, struct udpif_key *);
static atomic_bool enable_megaflows = ATOMIC_VAR_INIT(true);
@@ -256,6 +258,8 @@ udpif_create(struct dpif_backer *backer, struct dpif *dpif)
upcall_unixctl_disable_megaflows, NULL);
unixctl_command_register("upcall/enable-megaflows", "", 0, 0,
upcall_unixctl_enable_megaflows, NULL);
+ unixctl_command_register("upcall/set-flow-limit", "", 1, 1,
+ upcall_unixctl_set_flow_limit, NULL);
ovsthread_once_done(&once);
}
@@ -1688,3 +1692,25 @@ upcall_unixctl_enable_megaflows(struct unixctl_conn
*conn,
udpif_flush();
unixctl_command_reply(conn, "megaflows enabled");
}
+
+/* Set the flow limit.
+ *
+ * This command is only needed for advanced debugging, so it's not
+ * documented in the man page. */
+static void
+upcall_unixctl_set_flow_limit(struct unixctl_conn *conn,
+ int argc OVS_UNUSED,
+ const char *argv[] OVS_UNUSED,
+ void *aux OVS_UNUSED)
+{
+ struct ds ds = DS_EMPTY_INITIALIZER;
+ struct udpif *udpif;
+ unsigned int flow_limit = atoi(argv[1]);
+
+ LIST_FOR_EACH (udpif, list_node, &all_udpifs) {
+ atomic_store(&udpif->flow_limit, flow_limit);
+ }
+ ds_put_format(&ds, "set flow_limit to %u\n", flow_limit);
+ unixctl_command_reply(conn, ds_cstr(&ds));
+ ds_destroy(&ds);
+}
--
1.7.9.5
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