Blob Blame History Raw
diff --git a/.ci/linux-build.sh b/.ci/linux-build.sh
index 99850a943..8227a5748 100755
--- a/.ci/linux-build.sh
+++ b/.ci/linux-build.sh
@@ -82,6 +82,10 @@ if [ "$DPDK" ] || [ "$DPDK_SHARED" ]; then
     install_dpdk
 fi
 
+if [ "$STD" ]; then
+    CFLAGS_FOR_OVS="${CFLAGS_FOR_OVS} -std=$STD"
+fi
+
 if [ "$CC" = "clang" ]; then
     CFLAGS_FOR_OVS="${CFLAGS_FOR_OVS} -Wno-error=unused-command-line-argument"
 elif [ "$M32" ]; then
diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 47d239f10..bc5494e86 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -85,6 +85,7 @@ jobs:
       LIBS:        ${{ matrix.libs }}
       M32:         ${{ matrix.m32 }}
       OPTS:        ${{ matrix.opts }}
+      STD:         ${{ matrix.std }}
       TESTSUITE:   ${{ matrix.testsuite }}
 
     name: linux ${{ join(matrix.*, ' ') }}
@@ -100,6 +101,11 @@ jobs:
           - compiler:     clang
             opts:         --disable-ssl
 
+          - compiler:     gcc
+            std:          c99
+          - compiler:     clang
+            std:          c99
+
           - compiler:     gcc
             testsuite:    test
           - compiler:     clang
diff --git a/Documentation/ref/ovs-actions.7.rst b/Documentation/ref/ovs-actions.7.rst
index d13895655..36adcc5db 100644
--- a/Documentation/ref/ovs-actions.7.rst
+++ b/Documentation/ref/ovs-actions.7.rst
@@ -694,7 +694,8 @@ encapsulated in an OpenFlow ``packet-in`` message.  The supported options are:
     Limit to *max_len* the number of bytes of the packet to send in the
     ``packet-in.``  A *max_len* of 0 prevents any of the packet from being
     sent (thus, only metadata is included).  By default, the entire packet is
-    sent, equivalent to a *max_len* of 65535.
+    sent, equivalent to a *max_len* of 65535.  This option has no effect in
+    Open vSwith 2.7 and later: the entire packet will always be sent.
 
   ``reason=``\ *reason*
     Specify *reason* as the reason for sending the message in the
@@ -733,6 +734,12 @@ encapsulated in an OpenFlow ``packet-in`` message.  The supported options are:
   options require the Open vSwitch ``NXAST_CONTROLLER`` extension action added
   in Open vSwitch 1.6.
 
+  Open vSwitch 2.7 and later is configured to not buffer packets for the
+  packet-in event.  As a result, the full packet is always sent to
+  controllers.  This means that the ``max_len`` option has no effect on the
+  ``controller`` action, and all values (even 0) are equivalent to the default
+  value of 65535.
+
 
 The ``enqueue`` action
 ----------------------
diff --git a/Makefile.am b/Makefile.am
index db341504d..439e2bf6d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -368,7 +368,7 @@ ALL_LOCAL += manpage-check
 manpage-check: $(man_MANS) $(dist_man_MANS) $(noinst_man_MANS)
 	@error=false; \
 	for manpage in $?; do \
-	  LANG=en_US.UTF-8 groff -w mac -w delim -w escape -w input -w missing -w tab -T utf8 -man -p -z $$manpage >$@.tmp 2>&1; \
+	  LANG=en_US.UTF-8 groff -t -w mac -w delim -w escape -w input -w missing -w tab -T utf8 -man -p -z $$manpage >$@.tmp 2>&1; \
 	  if grep warning: $@.tmp; then error=:; fi; \
 	  rm -f $@.tmp; \
 	done; \
@@ -415,7 +415,7 @@ endif
 CLEANFILES += flake8-check
 
 -include manpages.mk
-manpages.mk: $(MAN_ROOTS) build-aux/sodepends.py python/build/soutil.py
+manpages.mk: $(MAN_ROOTS) build-aux/sodepends.py python/ovs_build_helpers/soutil.py
 	@PYTHONPATH=$$PYTHONPATH$(psep)$(srcdir)/python $(PYTHON3) $(srcdir)/build-aux/sodepends.py -I. -I$(srcdir) $(MAN_ROOTS) >$(@F).tmp
 	@if cmp -s $(@F).tmp $@; then \
 	  touch $@; \
diff --git a/NEWS b/NEWS
index a3a5c2e4a..eb7a9b1ba 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+v3.2.2 - xx xxx xxxx
+--------------------
+
+v3.2.1 - 17 Oct 2023
+--------------------
+   - Bug fixes
+
 v3.2.0 - 17 Aug 2023
 --------------------
    - OVSDB:
diff --git a/build-aux/extract-ofp-fields b/build-aux/extract-ofp-fields
index efec59c25..05d3e1df3 100755
--- a/build-aux/extract-ofp-fields
+++ b/build-aux/extract-ofp-fields
@@ -4,9 +4,9 @@ import getopt
 import sys
 import os.path
 import xml.dom.minidom
-import build.nroff
 
-from build.extract_ofp_fields import (
+from ovs_build_helpers import nroff
+from ovs_build_helpers.extract_ofp_fields import (
     extract_ofp_fields,
     PREREQS,
     OXM_CLASSES,
@@ -216,7 +216,7 @@ def field_to_xml(field_node, f, body, summary):
         """.PP
 \\fB%s Field\\fR
 .TS
-tab(;);
+tab(;),nowarn;
 l lx.
 """
         % title
@@ -297,7 +297,7 @@ l lx.
     body += [".TE\n"]
 
     body += [".PP\n"]
-    body += [build.nroff.block_xml_to_nroff(field_node.childNodes)]
+    body += [nroff.block_xml_to_nroff(field_node.childNodes)]
 
 
 def group_xml_to_nroff(group_node, fields):
@@ -310,14 +310,14 @@ def group_xml_to_nroff(group_node, fields):
             id_ = node.attributes["id"].nodeValue
             field_to_xml(node, fields[id_], body, summary)
         else:
-            body += [build.nroff.block_xml_to_nroff([node])]
+            body += [nroff.block_xml_to_nroff([node])]
 
     content = [
         ".bp\n",
-        '.SH "%s"\n' % build.nroff.text_to_nroff(title.upper() + " FIELDS"),
+        '.SH "%s"\n' % nroff.text_to_nroff(title.upper() + " FIELDS"),
         '.SS "Summary:"\n',
         ".TS\n",
-        "tab(;);\n",
+        "tab(;),nowarn;\n",
         "l l l l l l l.\n",
         "Name;Bytes;Mask;RW?;Prereqs;NXM/OXM Support\n",
         "\_;\_;\_;\_;\_;\_\n",
@@ -329,7 +329,7 @@ def group_xml_to_nroff(group_node, fields):
 
 
 def make_oxm_classes_xml(document):
-    s = """tab(;);
+    s = """tab(;),nowarn;
 l l l.
 Prefix;Vendor;Class
 \_;\_;\_
@@ -422,7 +422,7 @@ ovs\-fields \- protocol header fields in OpenFlow and Open vSwitch
         elif node.nodeType == node.COMMENT_NODE:
             pass
         else:
-            s += build.nroff.block_xml_to_nroff([node])
+            s += nroff.block_xml_to_nroff([node])
 
     for f in fields:
         if "used" not in f:
diff --git a/build-aux/gen_ofp_field_decoders b/build-aux/gen_ofp_field_decoders
index 0b797ee8c..0cb6108c2 100755
--- a/build-aux/gen_ofp_field_decoders
+++ b/build-aux/gen_ofp_field_decoders
@@ -2,7 +2,7 @@
 
 import argparse
 
-import build.extract_ofp_fields as extract_fields
+from ovs_build_helpers.extract_ofp_fields import extract_ofp_fields
 
 
 def main():
@@ -19,7 +19,7 @@ def main():
 
     args = parser.parse_args()
 
-    fields = extract_fields.extract_ofp_fields(args.metaflow)
+    fields = extract_ofp_fields(args.metaflow)
 
     field_decoders = {}
     aliases = {}
diff --git a/build-aux/sodepends.py b/build-aux/sodepends.py
index 45812bcbd..ac8dd61a4 100755
--- a/build-aux/sodepends.py
+++ b/build-aux/sodepends.py
@@ -14,9 +14,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from build import soutil
 import sys
 
+from ovs_build_helpers import soutil
+
 
 def sodepends(include_dirs, filenames, dst):
     ok = True
diff --git a/build-aux/soexpand.py b/build-aux/soexpand.py
index 00adcf47a..7d4dc0486 100755
--- a/build-aux/soexpand.py
+++ b/build-aux/soexpand.py
@@ -14,9 +14,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from build import soutil
 import sys
 
+from ovs_build_helpers import soutil
+
 
 def soexpand(include_dirs, src, dst):
     ok = True
diff --git a/build-aux/xml2nroff b/build-aux/xml2nroff
index ee5553f45..3e937910b 100755
--- a/build-aux/xml2nroff
+++ b/build-aux/xml2nroff
@@ -18,7 +18,7 @@ import getopt
 import sys
 import xml.dom.minidom
 
-import build.nroff
+from ovs_build_helpers import nroff
 
 argv0 = sys.argv[0]
 
@@ -90,10 +90,10 @@ def manpage_to_nroff(xml_file, subst, include_path, version=None):
 .  I "\\$1"
 .  RE
 ..
-''' % (build.nroff.text_to_nroff(program), build.nroff.text_to_nroff(section),
-       build.nroff.text_to_nroff(title), build.nroff.text_to_nroff(version))
+''' % (nroff.text_to_nroff(program), nroff.text_to_nroff(section),
+       nroff.text_to_nroff(title), nroff.text_to_nroff(version))
 
-    s += build.nroff.block_xml_to_nroff(doc.childNodes) + "\n"
+    s += nroff.block_xml_to_nroff(doc.childNodes) + "\n"
 
     return s
 
@@ -139,7 +139,7 @@ if __name__ == "__main__":
 
     try:
         s = manpage_to_nroff(args[0], subst, include_path, version)
-    except build.nroff.error.Error as e:
+    except nroff.error.Error as e:
         sys.stderr.write("%s: %s\n" % (argv0, e.msg))
         sys.exit(1)
     for line in s.splitlines():
diff --git a/configure.ac b/configure.ac
index 320509c5f..764479514 100644
--- a/configure.ac
+++ b/configure.ac
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 AC_PREREQ(2.63)
-AC_INIT(openvswitch, 3.2.0, bugs@openvswitch.org)
+AC_INIT(openvswitch, 3.2.2, bugs@openvswitch.org)
 AC_CONFIG_SRCDIR([vswitchd/ovs-vswitchd.c])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_AUX_DIR([build-aux])
@@ -21,7 +21,11 @@ AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_TESTDIR([tests])
 AM_INIT_AUTOMAKE([tar-pax])
 
-AC_PROG_CC_C99
+# AC_PROG_CC doesn't try enabling C99 in autoconf 2.69 and below, but
+# AC_PROG_CC_C99 is deprecated in newer ones.  In autoconf 2.70+ both
+# will try enabling features up to C11.
+m4_version_prereq([2.70], [AC_PROG_CC], [AC_PROG_CC_C99])
+
 AM_PROG_CC_C_O
 AC_PROG_CXX
 AC_PROG_CPP
diff --git a/debian/changelog b/debian/changelog
index 8757e5cb2..780d1e2d8 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,15 @@
+openvswitch (3.2.2-1) unstable; urgency=low
+   [ Open vSwitch team ]
+   * New upstream version
+
+ -- Open vSwitch team <dev@openvswitch.org>  Tue, 17 Oct 2023 13:02:27 +0200
+
+openvswitch (3.2.1-1) unstable; urgency=low
+   [ Open vSwitch team ]
+   * New upstream version
+
+ -- Open vSwitch team <dev@openvswitch.org>  Tue, 17 Oct 2023 13:02:27 +0200
+
 openvswitch (3.2.0-1) unstable; urgency=low
 
    * New upstream version
diff --git a/include/openvswitch/compiler.h b/include/openvswitch/compiler.h
index cf009f826..52614a5ac 100644
--- a/include/openvswitch/compiler.h
+++ b/include/openvswitch/compiler.h
@@ -37,6 +37,16 @@
 #define OVS_NO_RETURN
 #endif
 
+#ifndef typeof
+#define typeof __typeof__
+#endif
+
+#ifndef __cplusplus
+#ifndef asm
+#define asm __asm__
+#endif
+#endif
+
 #if __GNUC__ && !__CHECKER__
 #define OVS_UNUSED __attribute__((__unused__))
 #define OVS_PRINTF_FORMAT(FMT, ARG1) __attribute__((__format__(printf, FMT, ARG1)))
diff --git a/lib/automake.mk b/lib/automake.mk
index e64ee76ce..24b0ffefe 100644
--- a/lib/automake.mk
+++ b/lib/automake.mk
@@ -451,7 +451,7 @@ lib_libsflow_la_SOURCES = \
 	lib/sflow_poller.c \
 	lib/sflow_receiver.c
 lib_libsflow_la_CPPFLAGS = $(AM_CPPFLAGS)
-lib_libsflow_la_CFLAGS = $(AM_CFLAGS)
+lib_libsflow_la_CFLAGS = $(AM_CFLAGS) -D_BSD_SOURCE -D_DEFAULT_SOURCE
 if HAVE_WNO_UNUSED
 lib_libsflow_la_CFLAGS += -Wno-unused
 endif
diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index 9730e0eec..157694bcf 100644
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -3380,14 +3380,13 @@ static inline void
 netdev_flow_key_init(struct netdev_flow_key *key,
                      const struct flow *flow)
 {
-    uint64_t *dst = miniflow_values(&key->mf);
     uint32_t hash = 0;
     uint64_t value;
 
     miniflow_map_init(&key->mf, flow);
     miniflow_init(&key->mf, flow);
 
-    size_t n = dst - miniflow_get_values(&key->mf);
+    size_t n = miniflow_n_values(&key->mf);
 
     FLOW_FOR_EACH_IN_MAPS (value, flow, key->mf.map) {
         hash = hash_add64(hash, value);
diff --git a/lib/fatal-signal.c b/lib/fatal-signal.c
index 77f0c87dd..953150074 100644
--- a/lib/fatal-signal.c
+++ b/lib/fatal-signal.c
@@ -138,10 +138,6 @@ fatal_signal_init(void)
 
         backtrace_capture(&dummy_bt);
 
-        if (!dummy_bt.n_frames) {
-            VLOG_DBG("Capturing of dummy backtrace has failed.");
-        }
-
         fatal_signal_create_wakeup_events();
 
 #ifdef _WIN32
diff --git a/lib/meta-flow.xml b/lib/meta-flow.xml
index bdd12f6a7..ac72a44bc 100644
--- a/lib/meta-flow.xml
+++ b/lib/meta-flow.xml
@@ -3517,23 +3517,24 @@ actions=clone(load:0->NXM_OF_IN_PORT[],output:123)
     </p>
 
     <tbl>
+tab(;);
 r r r r r.
-Criteria        OpenFlow 1.0    OpenFlow 1.1    OpenFlow 1.2+   NXM
-\_      \_      \_      \_      \_
-[1]     \fL????\fR/\fL1\fR,\fL??\fR/\fL?\fR     \fL????\fR/\fL1\fR,\fL??\fR/\fL?\fR     \fL0000\fR/\fL0000\fR,\fL--\fR  \fL0000\fR/\fL0000\fR
-[2]     \fLffff\fR/\fL0\fR,\fL??\fR/\fL?\fR     \fLffff\fR/\fL0\fR,\fL??\fR/\fL?\fR     \fL0000\fR/\fLffff\fR,\fL--\fR  \fL0000\fR/\fLffff\fR
-[3]     \fL0xxx\fR/\fL0\fR,\fL??\fR/\fL1\fR     \fL0xxx\fR/\fL0\fR,\fL??\fR/\fL1\fR     \fL1xxx\fR/\fLffff\fR,\fL--\fR  \fL1xxx\fR/\fL1fff\fR
-[4]     \fL????\fR/\fL1\fR,\fL0y\fR/\fL0\fR     \fLfffe\fR/\fL0\fR,\fL0y\fR/\fL0\fR     \fL1000\fR/\fL1000\fR,\fL0y\fR  \fLz000\fR/\fLf000\fR
-[5]     \fL0xxx\fR/\fL0\fR,\fL0y\fR/\fL0\fR     \fL0xxx\fR/\fL0\fR,\fL0y\fR/\fL0\fR     \fL1xxx\fR/\fLffff\fR,\fL0y\fR  \fLzxxx\fR/\fLffff\fR
+Criteria;OpenFlow 1.0;OpenFlow 1.1;OpenFlow 1.2+;NXM
+\_;\_;\_;\_;\_
+[1];\fL????\fR/\fL1\fR,\fL??\fR/\fL?\fR;\fL????\fR/\fL1\fR,\fL??\fR/\fL?\fR;\fL0000\fR/\fL0000\fR,\fL--\fR;\fL0000\fR/\fL0000\fR
+[2];\fLffff\fR/\fL0\fR,\fL??\fR/\fL?\fR;\fLffff\fR/\fL0\fR,\fL??\fR/\fL?\fR;\fL0000\fR/\fLffff\fR,\fL--\fR;\fL0000\fR/\fLffff\fR
+[3];\fL0xxx\fR/\fL0\fR,\fL??\fR/\fL1\fR;\fL0xxx\fR/\fL0\fR,\fL??\fR/\fL1\fR;\fL1xxx\fR/\fLffff\fR,\fL--\fR;\fL1xxx\fR/\fL1fff\fR
+[4];\fL????\fR/\fL1\fR,\fL0y\fR/\fL0\fR;\fLfffe\fR/\fL0\fR,\fL0y\fR/\fL0\fR;\fL1000\fR/\fL1000\fR,\fL0y\fR;\fLz000\fR/\fLf000\fR
+[5];\fL0xxx\fR/\fL0\fR,\fL0y\fR/\fL0\fR;\fL0xxx\fR/\fL0\fR,\fL0y\fR/\fL0\fR;\fL1xxx\fR/\fLffff\fR,\fL0y\fR;\fLzxxx\fR/\fLffff\fR
 .T&amp;
-r r c c r.
-[6]     (none)  (none)  \fL1001\fR/\fL1001\fR,\fL--\fR  \fL1001\fR/\fL1001\fR
+r c c r r.
+[6];(none);(none);\fL1001\fR/\fL1001\fR,\fL--\fR;\fL1001\fR/\fL1001\fR
 .T&amp;
-r r c c c.
-[7]     (none)  (none)  (none)  \fL3000\fR/\fL3000\fR
-[8]     (none)  (none)  (none)  \fL0000\fR/\fL0fff\fR
-[9]     (none)  (none)  (none)  \fL0000\fR/\fLf000\fR
-[10]    (none)  (none)  (none)  \fL0000\fR/\fLefff\fR
+r c c c r.
+[7];(none);(none);(none);\fL3000\fR/\fL3000\fR
+[8];(none);(none);(none);\fL0000\fR/\fL0fff\fR
+[9];(none);(none);(none);\fL0000\fR/\fLf000\fR
+[10];(none);(none);(none);\fL0000\fR/\fLefff\fR
     </tbl>
 
     <p>
diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c
index 8f1361e21..55700250d 100644
--- a/lib/netdev-dpdk.c
+++ b/lib/netdev-dpdk.c
@@ -1312,6 +1312,16 @@ dpdk_eth_dev_init(struct netdev_dpdk *dev)
         dev->hw_ol_features &= ~NETDEV_RX_HW_SCATTER;
     }
 
+    if (!strcmp(info.driver_name, "net_tap")) {
+        /* FIXME: L4 checksum offloading is broken in DPDK net/tap driver.
+         * This workaround can be removed once the fix makes it to a DPDK
+         * LTS release used by OVS. */
+        VLOG_INFO("%s: disabled Tx L4 checksum offloads for a net/tap port.",
+                  netdev_get_name(&dev->up));
+        info.tx_offload_capa &= ~RTE_ETH_TX_OFFLOAD_UDP_CKSUM;
+        info.tx_offload_capa &= ~RTE_ETH_TX_OFFLOAD_TCP_CKSUM;
+    }
+
     if (info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_IPV4_CKSUM) {
         dev->hw_ol_features |= NETDEV_TX_IPV4_CKSUM_OFFLOAD;
     } else {
@@ -2431,6 +2441,7 @@ netdev_dpdk_prep_hwol_packet(struct netdev_dpdk *dev, struct rte_mbuf *mbuf)
 
     if (!(mbuf->ol_flags & (RTE_MBUF_F_TX_IP_CKSUM | RTE_MBUF_F_TX_L4_MASK
                             | RTE_MBUF_F_TX_TCP_SEG))) {
+        mbuf->ol_flags &= ~(RTE_MBUF_F_TX_IPV4 | RTE_MBUF_F_TX_IPV6);
         return true;
     }
 
diff --git a/lib/netdev-offload-dpdk.c b/lib/netdev-offload-dpdk.c
index 14bc87771..992627fa2 100644
--- a/lib/netdev-offload-dpdk.c
+++ b/lib/netdev-offload-dpdk.c
@@ -2537,15 +2537,15 @@ out:
     return ret;
 }
 
-static int
-netdev_offload_dpdk_flow_flush(struct netdev *netdev)
+static void
+flush_netdev_flows_in_related(struct netdev *netdev, struct netdev *related)
 {
-    struct cmap *map = offload_data_map(netdev);
-    struct ufid_to_rte_flow_data *data;
     unsigned int tid = netdev_offload_thread_id();
+    struct cmap *map = offload_data_map(related);
+    struct ufid_to_rte_flow_data *data;
 
     if (!map) {
-        return -1;
+        return;
     }
 
     CMAP_FOR_EACH (data, node, map) {
@@ -2556,6 +2556,31 @@ netdev_offload_dpdk_flow_flush(struct netdev *netdev)
             netdev_offload_dpdk_flow_destroy(data);
         }
     }
+}
+
+static bool
+flush_in_vport_cb(struct netdev *vport,
+                  odp_port_t odp_port OVS_UNUSED,
+                  void *aux)
+{
+    struct netdev *netdev = aux;
+
+    /* Only vports are related to physical devices. */
+    if (netdev_vport_is_vport_class(vport->netdev_class)) {
+        flush_netdev_flows_in_related(netdev, vport);
+    }
+
+    return false;
+}
+
+static int
+netdev_offload_dpdk_flow_flush(struct netdev *netdev)
+{
+    flush_netdev_flows_in_related(netdev, netdev);
+
+    if (!netdev_vport_is_vport_class(netdev->netdev_class)) {
+        netdev_ports_traverse(netdev->dpif_type, flush_in_vport_cb, netdev);
+    }
 
     return 0;
 }
diff --git a/lib/netlink-conntrack.c b/lib/netlink-conntrack.c
index 4fcde9ba1..492bfcffb 100644
--- a/lib/netlink-conntrack.c
+++ b/lib/netlink-conntrack.c
@@ -579,7 +579,8 @@ nl_ct_put_tuple_proto(struct ofpbuf *buf, const struct ct_dpif_tuple *tuple)
         nl_msg_put_u8(buf, CTA_PROTO_ICMPV6_TYPE, tuple->icmp_type);
         nl_msg_put_u8(buf, CTA_PROTO_ICMPV6_CODE, tuple->icmp_code);
     } else if (tuple->ip_proto == IPPROTO_TCP ||
-               tuple->ip_proto == IPPROTO_UDP) {
+               tuple->ip_proto == IPPROTO_UDP ||
+               tuple->ip_proto == IPPROTO_SCTP) {
         nl_msg_put_be16(buf, CTA_PROTO_SRC_PORT, tuple->src_port);
         nl_msg_put_be16(buf, CTA_PROTO_DST_PORT, tuple->dst_port);
     } else {
diff --git a/ofproto/connmgr.c b/ofproto/connmgr.c
index b092e9e04..f7f7b1279 100644
--- a/ofproto/connmgr.c
+++ b/ofproto/connmgr.c
@@ -1209,7 +1209,7 @@ ofconn_create(struct ofservice *ofservice, struct rconn *rconn,
     hmap_init(&ofconn->bundles);
     ofconn->next_bundle_expiry_check = time_msec() + BUNDLE_EXPIRY_INTERVAL;
 
-    ofconn_set_rate_limit(ofconn, settings->rate_limit, settings->burst_limit);
+    ofservice_reconfigure(ofservice, settings);
 
     ovs_mutex_unlock(&ofproto_mutex);
 }
@@ -1915,10 +1915,7 @@ connmgr_count_hidden_rules(const struct connmgr *mgr)
 }
 
 /* Creates a new ofservice for 'target' in 'mgr'.  Returns 0 if successful,
- * otherwise a positive errno value.
- *
- * ofservice_reconfigure() must be called to fully configure the new
- * ofservice. */
+ * otherwise a positive errno value. */
 static void
 ofservice_create(struct connmgr *mgr, const char *target,
                  const struct ofproto_controller *c)
@@ -1928,7 +1925,8 @@ ofservice_create(struct connmgr *mgr, const char *target,
     struct rconn *rconn = NULL;
     if (!vconn_verify_name(target)) {
         char *name = ofconn_make_name(mgr, target);
-        rconn = rconn_create(5, 8, c->dscp, c->allowed_versions);
+        rconn = rconn_create(c->probe_interval, c->max_backoff,
+                             c->dscp, c->allowed_versions);
         rconn_connect(rconn, target, name);
         free(name);
     } else if (!pvconn_verify_name(target)) {
@@ -1951,7 +1949,6 @@ ofservice_create(struct connmgr *mgr, const char *target,
     ofservice->rconn = rconn;
     ofservice->pvconn = pvconn;
     ofservice->s = *c;
-    ofservice_reconfigure(ofservice, c);
 
     VLOG_INFO("%s: added %s controller \"%s\"",
               mgr->name, ofconn_type_to_string(ofservice->type), target);
diff --git a/ofproto/ofproto-dpif-xlate-cache.c b/ofproto/ofproto-dpif-xlate-cache.c
index 9224ee2e6..2e1fcb3a6 100644
--- a/ofproto/ofproto-dpif-xlate-cache.c
+++ b/ofproto/ofproto-dpif-xlate-cache.c
@@ -125,7 +125,7 @@ xlate_push_stats_entry(struct xc_entry *entry,
     case XC_LEARN: {
         enum ofperr error;
         error = ofproto_flow_mod_learn(entry->learn.ofm, true,
-                                       entry->learn.limit, NULL);
+                                       entry->learn.limit, NULL, stats->used);
         if (error) {
             static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
             VLOG_WARN_RL(&rl, "xcache LEARN action execution failed.");
diff --git a/ofproto/ofproto-dpif-xlate.c b/ofproto/ofproto-dpif-xlate.c
index 47ea0f47e..be4bd6657 100644
--- a/ofproto/ofproto-dpif-xlate.c
+++ b/ofproto/ofproto-dpif-xlate.c
@@ -1615,7 +1615,8 @@ xlate_lookup_ofproto_(const struct dpif_backer *backer,
         }
 
         ofp_port_t in_port = recirc_id_node->state.metadata.in_port;
-        if (in_port != OFPP_NONE && in_port != OFPP_CONTROLLER) {
+        if (in_port != OFPP_NONE && in_port != OFPP_CONTROLLER &&
+            !uuid_is_zero(&recirc_id_node->state.xport_uuid)) {
             struct uuid xport_uuid = recirc_id_node->state.xport_uuid;
             xport = xport_lookup_by_uuid(xcfg, &xport_uuid);
             if (xport && xport->xbridge && xport->xbridge->ofproto) {
@@ -1626,11 +1627,19 @@ xlate_lookup_ofproto_(const struct dpif_backer *backer,
              * that the packet originated from the controller via an OpenFlow
              * "packet-out".  The right thing to do is to find just the
              * ofproto.  There is no xport, which is OK.
+             * Also a zeroed xport_uuid with a valid in_port, means that
+             * the packet originated from OFPP_CONTROLLER passed
+             * through a patch port.
              *
              * OFPP_NONE can also indicate that a bond caused recirculation. */
             struct uuid uuid = recirc_id_node->state.ofproto_uuid;
             const struct xbridge *bridge = xbridge_lookup_by_uuid(xcfg, &uuid);
+
             if (bridge && bridge->ofproto) {
+                if (in_port != OFPP_CONTROLLER && in_port != OFPP_NONE &&
+                    !get_ofp_port(bridge, in_port)) {
+                    goto xport_lookup;
+                }
                 if (errorp) {
                     *errorp = NULL;
                 }
@@ -1643,6 +1652,7 @@ xlate_lookup_ofproto_(const struct dpif_backer *backer,
         }
     }
 
+xport_lookup:
     xport = xport_lookup(xcfg, tnl_port_should_receive(flow)
                          ? tnl_port_receive(flow)
                          : odp_port_to_ofport(backer, flow->in_port.odp_port));
@@ -5700,8 +5710,16 @@ xlate_learn_action(struct xlate_ctx *ctx, const struct ofpact_learn *learn)
         if (!error) {
             bool success = true;
             if (ctx->xin->allow_side_effects) {
+                long long int last_used;
+
+                if (ctx->xin->resubmit_stats) {
+                    last_used = ctx->xin->resubmit_stats->used;
+                } else {
+                    last_used = time_msec();
+                }
                 error = ofproto_flow_mod_learn(ofm, ctx->xin->xcache != NULL,
-                                               learn->limit, &success);
+                                               learn->limit, &success,
+                                               last_used);
             } else if (learn->limit) {
                 if (!ofm->temp_rule
                     || ofm->temp_rule->state != RULE_INSERTED) {
diff --git a/ofproto/ofproto-dpif.c b/ofproto/ofproto-dpif.c
index e22ca757a..ba5706f6a 100644
--- a/ofproto/ofproto-dpif.c
+++ b/ofproto/ofproto-dpif.c
@@ -4880,7 +4880,7 @@ packet_xlate(struct ofproto *ofproto_, struct ofproto_packet_out *opo)
             if (entry->type == XC_LEARN) {
                 struct ofproto_flow_mod *ofm = entry->learn.ofm;
 
-                error = ofproto_flow_mod_learn_refresh(ofm);
+                error = ofproto_flow_mod_learn_refresh(ofm, time_msec());
                 if (error) {
                     goto error_out;
                 }
diff --git a/ofproto/ofproto-provider.h b/ofproto/ofproto-provider.h
index 143ded690..9f7b8b6e8 100644
--- a/ofproto/ofproto-provider.h
+++ b/ofproto/ofproto-provider.h
@@ -2027,9 +2027,11 @@ enum ofperr ofproto_flow_mod_init_for_learn(struct ofproto *,
                                             struct ofproto_flow_mod *)
     OVS_EXCLUDED(ofproto_mutex);
 enum ofperr ofproto_flow_mod_learn(struct ofproto_flow_mod *, bool keep_ref,
-                                   unsigned limit, bool *below_limit)
+                                   unsigned limit, bool *below_limit,
+                                   long long int last_used)
     OVS_EXCLUDED(ofproto_mutex);
-enum ofperr ofproto_flow_mod_learn_refresh(struct ofproto_flow_mod *ofm);
+enum ofperr ofproto_flow_mod_learn_refresh(struct ofproto_flow_mod *ofm,
+                                           long long int last_used);
 enum ofperr ofproto_flow_mod_learn_start(struct ofproto_flow_mod *ofm)
     OVS_REQUIRES(ofproto_mutex);
 void ofproto_flow_mod_learn_revert(struct ofproto_flow_mod *ofm)
diff --git a/ofproto/ofproto.c b/ofproto/ofproto.c
index dbf4958bc..e78c80d11 100644
--- a/ofproto/ofproto.c
+++ b/ofproto/ofproto.c
@@ -5472,7 +5472,8 @@ ofproto_flow_mod_init_for_learn(struct ofproto *ofproto,
 }
 
 enum ofperr
-ofproto_flow_mod_learn_refresh(struct ofproto_flow_mod *ofm)
+ofproto_flow_mod_learn_refresh(struct ofproto_flow_mod *ofm,
+                               long long int last_used)
 {
     enum ofperr error = 0;
 
@@ -5493,9 +5494,37 @@ ofproto_flow_mod_learn_refresh(struct ofproto_flow_mod *ofm)
      * this function is executed the rule will be reinstated. */
     if (rule->state == RULE_REMOVED) {
         struct cls_rule cr;
+        struct oftable *table = &rule->ofproto->tables[rule->table_id];
+        ovs_version_t tables_version = rule->ofproto->tables_version;
+
+        if (!cls_rule_visible_in_version(&rule->cr, tables_version)) {
+            const struct cls_rule *curr_cls_rule;
+
+            /* Only check for matching classifier rules and their modified
+             * time, instead of also checking all rule metadata, with the goal
+             * of suppressing a learn action update that would replace a more
+             * recent rule in the classifier. */
+            curr_cls_rule = classifier_find_rule_exactly(&table->cls,
+                                                         &rule->cr,
+                                                         tables_version);
+            if (curr_cls_rule) {
+                struct rule *curr_rule = rule_from_cls_rule(curr_cls_rule);
+                long long int curr_last_used;
+
+                ovs_mutex_lock(&curr_rule->mutex);
+                curr_last_used = curr_rule->modified;
+                ovs_mutex_unlock(&curr_rule->mutex);
+
+                if (curr_last_used > last_used) {
+                    /* In the case of a newer visible rule, don't recreate the
+                     *  current rule. */
+                    return 0;
+                }
+            }
+        }
 
-        cls_rule_clone(&cr, &rule->cr);
         ovs_mutex_lock(&rule->mutex);
+        cls_rule_clone(&cr, &rule->cr);
         error = ofproto_rule_create(rule->ofproto, &cr, rule->table_id,
                                     rule->flow_cookie,
                                     rule->idle_timeout,
@@ -5506,6 +5535,7 @@ ofproto_flow_mod_learn_refresh(struct ofproto_flow_mod *ofm)
                                     rule->match_tlv_bitmap,
                                     rule->ofpacts_tlv_bitmap,
                                     &ofm->temp_rule);
+        ofm->temp_rule->modified = last_used;
         ovs_mutex_unlock(&rule->mutex);
         if (!error) {
             ofproto_rule_unref(rule);   /* Release old reference. */
@@ -5513,7 +5543,7 @@ ofproto_flow_mod_learn_refresh(struct ofproto_flow_mod *ofm)
     } else {
         /* Refresh the existing rule. */
         ovs_mutex_lock(&rule->mutex);
-        rule->modified = time_msec();
+        rule->modified = last_used;
         ovs_mutex_unlock(&rule->mutex);
     }
     return error;
@@ -5565,10 +5595,16 @@ ofproto_flow_mod_learn_finish(struct ofproto_flow_mod *ofm,
 
 /* Refresh 'ofm->temp_rule', for which the caller holds a reference, if already
  * in the classifier, insert it otherwise.  If the rule has already been
- * removed from the classifier, a new rule is created using 'ofm->temp_rule' as
- * a template and the reference to the old 'ofm->temp_rule' is freed.  If
- * 'keep_ref' is true, then a reference to the current rule is held, otherwise
- * it is released and 'ofm->temp_rule' is set to NULL.
+ * removed from the classifier and replaced by another rule, the 'last_used'
+ * parameter is used to determine whether the newer rule is replaced or kept.
+ * If 'last_used' is greater than the last modified time of an identical rule
+ * in the classifier, then a new rule is created using 'ofm->temp_rule' as a
+ * template and the reference to the old 'ofm->temp_rule' is freed.  If the
+ * rule has been removed but another identical rule doesn't exist in the
+ * classifier, then it will be recreated.  If the rule hasn't been removed
+ * from the classifier, then 'last_used' is used to update the rules modified
+ * time.  If 'keep_ref' is true, then a reference to the current rule is held,
+ * otherwise it is released and 'ofm->temp_rule' is set to NULL.
  *
  * If 'limit' != 0, insertion will fail if there are more than 'limit' rules
  * in the same table with the same cookie.  If insertion succeeds,
@@ -5579,10 +5615,11 @@ ofproto_flow_mod_learn_finish(struct ofproto_flow_mod *ofm,
  * during the call. */
 enum ofperr
 ofproto_flow_mod_learn(struct ofproto_flow_mod *ofm, bool keep_ref,
-                       unsigned limit, bool *below_limitp)
+                       unsigned limit, bool *below_limitp,
+                       long long int last_used)
     OVS_EXCLUDED(ofproto_mutex)
 {
-    enum ofperr error = ofproto_flow_mod_learn_refresh(ofm);
+    enum ofperr error = ofproto_flow_mod_learn_refresh(ofm, last_used);
     struct rule *rule = ofm->temp_rule;
     bool below_limit = true;
 
@@ -5615,6 +5652,11 @@ ofproto_flow_mod_learn(struct ofproto_flow_mod *ofm, bool keep_ref,
 
             error = ofproto_flow_mod_learn_start(ofm);
             if (!error) {
+                /* ofproto_flow_mod_learn_start may have overwritten
+                 * modified with current time. */
+                ovs_mutex_lock(&ofm->temp_rule->mutex);
+                ofm->temp_rule->modified = last_used;
+                ovs_mutex_unlock(&ofm->temp_rule->mutex);
                 error = ofproto_flow_mod_learn_finish(ofm, NULL);
             }
         } else {
diff --git a/ovsdb/condition.c b/ovsdb/condition.c
index 5a3eb4e8a..4911fbf59 100644
--- a/ovsdb/condition.c
+++ b/ovsdb/condition.c
@@ -550,9 +550,14 @@ ovsdb_condition_diff(struct ovsdb_condition *diff,
                            &b->clauses[j]);
     }
 
-    diff->optimized = a->optimized && b->optimized;
-    if (diff->optimized) {
-        ovsdb_condition_optimize(diff);
+    if (diff->n_clauses) {
+        diff->optimized = a->optimized && b->optimized;
+        if (diff->optimized) {
+            ovsdb_condition_optimize(diff);
+        }
+    } else {
+        free(diff->clauses);
+        diff->clauses = NULL;
     }
 }
 
diff --git a/ovsdb/monitor.c b/ovsdb/monitor.c
index 01091fabe..f4a9cf8fe 100644
--- a/ovsdb/monitor.c
+++ b/ovsdb/monitor.c
@@ -821,6 +821,7 @@ ovsdb_monitor_table_condition_update(
     ovsdb_condition_destroy(&mtc->new_condition);
     ovsdb_condition_clone(&mtc->new_condition, &cond);
     ovsdb_condition_destroy(&cond);
+    ovsdb_condition_destroy(&mtc->diff_condition);
     ovsdb_condition_diff(&mtc->diff_condition,
                          &mtc->old_condition, &mtc->new_condition);
     ovsdb_monitor_condition_add_columns(dbmon,
diff --git a/ovsdb/ovsdb-doc b/ovsdb/ovsdb-doc
index 10d0c0c13..099770d25 100755
--- a/ovsdb/ovsdb-doc
+++ b/ovsdb/ovsdb-doc
@@ -24,7 +24,7 @@ import ovs.json
 from ovs.db import error
 import ovs.db.schema
 
-from build.nroff import *
+from ovs_build_helpers.nroff import *
 
 argv0 = sys.argv[0]
 
diff --git a/python/automake.mk b/python/automake.mk
index 82a508787..84cf2eab5 100644
--- a/python/automake.mk
+++ b/python/automake.mk
@@ -66,10 +66,10 @@ ovs_pytests = \
 # These python files are used at build time but not runtime,
 # so they are not installed.
 EXTRA_DIST += \
-	python/build/__init__.py \
-	python/build/extract_ofp_fields.py \
-	python/build/nroff.py \
-	python/build/soutil.py
+	python/ovs_build_helpers/__init__.py \
+	python/ovs_build_helpers/extract_ofp_fields.py \
+	python/ovs_build_helpers/nroff.py \
+	python/ovs_build_helpers/soutil.py
 
 # PyPI support.
 EXTRA_DIST += \
@@ -88,10 +88,10 @@ PYCOV_CLEAN_FILES += $(PYFILES:.py=.py,cover)
 
 FLAKE8_PYFILES += \
 	$(filter-out python/ovs/compat/% python/ovs/dirs.py,$(PYFILES)) \
-	python/build/__init__.py \
-	python/build/extract_ofp_fields.py \
-	python/build/nroff.py \
-	python/build/soutil.py \
+	python/ovs_build_helpers/__init__.py \
+	python/ovs_build_helpers/extract_ofp_fields.py \
+	python/ovs_build_helpers/nroff.py \
+	python/ovs_build_helpers/soutil.py \
 	python/ovs/dirs.py.template \
 	python/setup.py
 
@@ -112,11 +112,14 @@ ovs-install-data-local:
 	$(INSTALL_DATA) python/ovs/dirs.py.tmp $(DESTDIR)$(pkgdatadir)/python/ovs/dirs.py
 	rm python/ovs/dirs.py.tmp
 
+.PHONY: python-sdist
 python-sdist: $(srcdir)/python/ovs/version.py $(ovs_pyfiles) python/ovs/dirs.py
-	(cd python/ && $(PYTHON3) setup.py sdist)
+	cd python/ && $(PYTHON3) -m build --sdist
+
+.PHONY: pypi-upload
+pypi-upload: python-sdist
+	twine upload python/dist/ovs-$(VERSION).tar.gz
 
-pypi-upload: $(srcdir)/python/ovs/version.py $(ovs_pyfiles) python/ovs/dirs.py
-	(cd python/ && $(PYTHON3) setup.py sdist upload)
 install-data-local: ovs-install-data-local
 
 UNINSTALL_LOCAL += ovs-uninstall-local
diff --git a/python/ovs/db/idl.py b/python/ovs/db/idl.py
index 9fc2159b0..16ece0334 100644
--- a/python/ovs/db/idl.py
+++ b/python/ovs/db/idl.py
@@ -494,6 +494,7 @@ class Idl(object):
                         if not msg.result[0]:
                             self.__clear()
                         self.__parse_update(msg.result[2], OVSDB_UPDATE3)
+                        self.last_id = msg.result[1]
                     elif self.state == self.IDL_S_DATA_MONITOR_COND_REQUESTED:
                         self.__clear()
                         self.__parse_update(msg.result, OVSDB_UPDATE2)
diff --git a/python/build/__init__.py b/python/ovs_build_helpers/__init__.py
similarity index 100%
rename from python/build/__init__.py
rename to python/ovs_build_helpers/__init__.py
diff --git a/python/build/extract_ofp_fields.py b/python/ovs_build_helpers/extract_ofp_fields.py
similarity index 100%
rename from python/build/extract_ofp_fields.py
rename to python/ovs_build_helpers/extract_ofp_fields.py
diff --git a/python/build/nroff.py b/python/ovs_build_helpers/nroff.py
similarity index 100%
rename from python/build/nroff.py
rename to python/ovs_build_helpers/nroff.py
diff --git a/python/build/soutil.py b/python/ovs_build_helpers/soutil.py
similarity index 100%
rename from python/build/soutil.py
rename to python/ovs_build_helpers/soutil.py
diff --git a/tests/.gitignore b/tests/.gitignore
index 83b1cb3b4..3a8c45975 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -3,6 +3,7 @@
 /Makefile.in
 /atconfig
 /atlocal
+/clang-analyzer-results/
 /idltest.c
 /idltest.h
 /idltest.ovsidl
diff --git a/tests/learn.at b/tests/learn.at
index d127fed34..d0bcc8363 100644
--- a/tests/learn.at
+++ b/tests/learn.at
@@ -836,3 +836,63 @@ AT_CHECK([ovs-vsctl add-br br1 -- set b br1 datapath_type=dummy])
 
 OVS_VSWITCHD_STOP
 AT_CLEANUP
+
+AT_SETUP([learning action - flapping learn rule])
+OVS_VSWITCHD_START
+add_of_ports br0 1 2 3
+
+AT_CHECK([ovs-appctl time/stop], [0], [ignore])
+AT_CHECK([[ovs-ofctl add-flow br0 'table=0,priority=2,in_port=1,actions=resubmit(,2)']])
+AT_CHECK([[ovs-ofctl add-flow br0 'table=0,priority=2,in_port=2,actions=resubmit(,2)']])
+AT_CHECK([[ovs-ofctl add-flow br0 'table=2,actions=learn(table=0,hard_timeout=3,priority=1,cookie=0x123,NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],output:OXM_OF_IN_PORT[]),output:3']])
+
+packet="eth(src=50:54:00:00:00:06,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no),tcp(src=8,dst=9)"
+
+dnl Run this test a few times in a loop to reduce the likelyhood that it passes by chance.
+for i in 1 2 3; do
+    AT_CHECK([ovs-appctl revalidator/pause], [0])
+    AT_CHECK([ovs-appctl netdev-dummy/receive p2 $packet], [0])
+    AT_CHECK([ovs-appctl time/warp 75], [0], [ignore])
+    AT_CHECK([ovs-appctl netdev-dummy/receive p1 $packet], [0])
+    AT_CHECK([ovs-appctl time/warp 75], [0], [ignore])
+    AT_CHECK([ovs-appctl netdev-dummy/receive p2 $packet], [0])
+    AT_CHECK([ovs-appctl time/warp 75], [0], [ignore])
+    AT_CHECK([ovs-appctl netdev-dummy/receive p1 $packet], [0])
+    AT_CHECK([ovs-appctl time/warp 75], [0], [ignore])
+
+    AT_CHECK([ovs-appctl revalidator/resume], [0])
+    AT_CHECK([ovs-appctl revalidator/wait], [0])
+
+    AT_CHECK([ovs-ofctl --no-stats dump-flows br0 | ofctl_strip | sort | grep 0x123], [0], [dnl
+ cookie=0x123, hard_timeout=3, priority=1,dl_dst=50:54:00:00:00:06 actions=output:1
+ table=2, actions=learn(table=0,hard_timeout=3,priority=1,cookie=0x123,NXM_OF_ETH_DST[[]]=NXM_OF_ETH_SRC[[]],output:OXM_OF_IN_PORT[[]]),output:3
+])
+
+    AT_CHECK([ovs-appctl revalidator/pause], [0])
+    AT_CHECK([ovs-appctl netdev-dummy/receive p1 $packet], [0])
+    AT_CHECK([ovs-appctl time/warp 75], [0], [ignore])
+    AT_CHECK([ovs-appctl netdev-dummy/receive p2 $packet], [0])
+    AT_CHECK([ovs-appctl time/warp 75], [0], [ignore])
+    AT_CHECK([ovs-appctl netdev-dummy/receive p1 $packet], [0])
+    AT_CHECK([ovs-appctl time/warp 75], [0], [ignore])
+    AT_CHECK([ovs-appctl netdev-dummy/receive p2 $packet], [0])
+    AT_CHECK([ovs-appctl time/warp 75], [0], [ignore])
+
+    AT_CHECK([ovs-appctl revalidator/resume], [0])
+    AT_CHECK([ovs-appctl revalidator/wait], [0])
+
+    AT_CHECK([ovs-ofctl --no-stats dump-flows br0 | ofctl_strip | sort | grep 0x123], [0], [dnl
+ cookie=0x123, hard_timeout=3, priority=1,dl_dst=50:54:00:00:00:06 actions=output:2
+ table=2, actions=learn(table=0,hard_timeout=3,priority=1,cookie=0x123,NXM_OF_ETH_DST[[]]=NXM_OF_ETH_SRC[[]],output:OXM_OF_IN_PORT[[]]),output:3
+])
+done
+
+dnl Wait and check for learned rule eviction due to hard timeout.
+AT_CHECK([ovs-appctl time/warp 3200], [0], [ignore])
+
+AT_CHECK([ovs-ofctl --no-stats dump-flows br0 | ofctl_strip | grep 0x123], [0], [dnl
+ table=2, actions=learn(table=0,hard_timeout=3,priority=1,cookie=0x123,NXM_OF_ETH_DST[[]]=NXM_OF_ETH_SRC[[]],output:OXM_OF_IN_PORT[[]]),output:3
+])
+
+OVS_VSWITCHD_STOP
+AT_CLEANUP
diff --git a/tests/mfex_fuzzy.py b/tests/mfex_fuzzy.py
index 30028ba7a..50b987064 100755
--- a/tests/mfex_fuzzy.py
+++ b/tests/mfex_fuzzy.py
@@ -3,12 +3,15 @@
 import sys
 import warnings
 
-from cryptography.utils import CryptographyDeprecationWarning
-warnings.filterwarnings(
-    "ignore",
-    category=CryptographyDeprecationWarning,
-    message=r"(blowfish|cast5)",
-)
+try:
+    from cryptography.utils import CryptographyDeprecationWarning
+    warnings.filterwarnings(
+        "ignore",
+        category=CryptographyDeprecationWarning,
+        message=r"(blowfish|cast5)",
+    )
+except ModuleNotFoundError:
+    pass
 
 # flake8: noqa: E402
 from scapy.all import RandMAC, RandIP, PcapWriter, RandIP6, RandShort, fuzz
diff --git a/tests/ofproto-dpif.at b/tests/ofproto-dpif.at
index f242f77f3..a39d0d3ae 100644
--- a/tests/ofproto-dpif.at
+++ b/tests/ofproto-dpif.at
@@ -5854,6 +5854,40 @@ OVS_WAIT_UNTIL([check_flows], [ovs-ofctl dump-flows br0])
 OVS_VSWITCHD_STOP
 AT_CLEANUP
 
+dnl Checks for regression against a bug in which OVS dropped packets
+dnl originating from a controller passing through a patch port.
+AT_SETUP([ofproto-dpif - packet-out recirculation OFPP_CONTROLLER and patch port])
+OVS_VSWITCHD_START(
+    [add-port br0 patch-br1 -- \
+     set interface patch-br1 type=patch options:peer=patch-br0 -- \
+     add-br br1 -- set bridge br1 datapath-type=dummy fail-mode=secure -- \
+     add-port br1 patch-br0 -- set interface patch-br0 type=patch options:peer=patch-br1
+])
+
+add_of_ports --pcap br1 1
+
+AT_DATA([flows-br0.txt], [dnl
+table=0 icmp actions=output:patch-br1
+])
+AT_CHECK([ovs-ofctl add-flows br0 flows-br0.txt])
+
+AT_DATA([flows-br1.txt], [dnl
+table=0, icmp actions=ct(table=1,zone=1)
+table=1, ct_state=+trk, icmp actions=p1
+])
+AT_CHECK([ovs-ofctl add-flows br1 flows-br1.txt])
+
+packet=50540000000750540000000508004500005c000000008001b94dc0a80001c0a80002080013fc00000000000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f
+AT_CHECK([ovs-ofctl packet-out br0 "in_port=CONTROLLER packet=$packet actions=table"])
+
+OVS_WAIT_UNTIL_EQUAL([ovs-ofctl dump-flows -m br1 | grep "ct_state" | ofctl_strip], [dnl
+ table=1, n_packets=1, n_bytes=106, ct_state=+trk,icmp actions=output:2])
+
+OVS_WAIT_UNTIL([ovs-pcap p1-tx.pcap | grep -q "$packet"])
+
+OVS_VSWITCHD_STOP
+AT_CLEANUP
+
 AT_SETUP([ofproto-dpif - debug_slow action])
 OVS_VSWITCHD_START
 add_of_ports br0 1 2 3
diff --git a/tests/ofproto.at b/tests/ofproto.at
index 2fa8486a8..2889f81fb 100644
--- a/tests/ofproto.at
+++ b/tests/ofproto.at
@@ -6720,3 +6720,31 @@ recirc_id(0),in_port(1),packet_type(ns=0,id=0),eth_type(0x0806),arp(tip=172.31.1
 
 OVS_VSWITCHD_STOP
 AT_CLEANUP
+
+AT_SETUP([ofproto - configure inactivity probe interval])
+
+# Set 6 second inactivity probe interval (default is 5 seconds).
+OVS_VSWITCHD_START([set-controller br0 unix:testcontroller \
+                   -- set Controller br0 inactivity_probe=6000], [], [],
+                   [-vfile:rconn:dbg])
+
+# Start test openflow controller.
+AT_CHECK([ovs-testcontroller -vsyslog:off --detach --no-chdir --pidfile punix:testcontroller],
+         [0], [ignore])
+on_exit 'kill `cat ovs-testcontroller.pid`'
+OVS_WAIT_UNTIL([test -e testcontroller])
+
+# After 6 seconds of inactivity there should be a log message.
+OVS_WAIT_UNTIL([grep "idle 6 seconds, sending inactivity probe" ovs-vswitchd.log])
+
+# Restart ovs-vswitchd with an empty ovs-vswitchd log file.
+OVS_APP_EXIT_AND_WAIT([ovs-vswitchd])
+mv ovs-vswitchd.log ovs-vswitchd_1.log
+AT_CHECK([ovs-vswitchd --enable-dummy --disable-system --disable-system-route --detach \
+         --no-chdir --pidfile --log-file -vfile:rconn:dbg -vvconn -vofproto_dpif -vunixctl],
+         [0], [], [stderr])
+
+# After 6 seconds of inactivity there should be a log message.
+OVS_WAIT_UNTIL([grep "idle 6 seconds, sending inactivity probe" ovs-vswitchd.log])
+OVS_VSWITCHD_STOP(["/br0<->unix:testcontroller: connection failed/d"])
+AT_CLEANUP
diff --git a/tests/ovsdb-idl.at b/tests/ovsdb-idl.at
index df5a9d2fd..1028b0237 100644
--- a/tests/ovsdb-idl.at
+++ b/tests/ovsdb-idl.at
@@ -2332,6 +2332,23 @@ CHECK_STREAM_OPEN_BLOCK([Python3], [$PYTHON3 $srcdir/test-stream.py],
 CHECK_STREAM_OPEN_BLOCK([Python3], [$PYTHON3 $srcdir/test-stream.py],
                         [ssl6], [[[::1]]])
 
+dnl OVSDB_CLUSTER_CHECK_MONITOR_COND_SINCE_TXN_IDS(LOG)
+dnl
+dnl Looks up transaction IDs in the log of OVSDB client application.
+dnl All-zero UUID should not be sent within a monitor request more than once,
+dnl unless some database requests were lost (not replied).
+m4_define([OVSDB_CLUSTER_CHECK_MONITOR_COND_SINCE_TXN_IDS],
+[
+   requests=$(grep -c 'send request' $1)
+   replies=$(grep -c 'received reply' $1)
+
+   if test "$requests" -eq "$replies"; then
+     AT_CHECK([grep 'monitor_cond_since' $1 \
+                | grep -c "00000000-0000-0000-0000-000000000000" | tr -d '\n'],
+              [0], [1])
+   fi
+])
+
 # same as OVSDB_CHECK_IDL but uses Python IDL implementation with tcp
 # with multiple remotes to assert the idl connects to the leader of the Raft cluster
 m4_define([OVSDB_CHECK_IDL_LEADER_ONLY_PY],
@@ -2347,10 +2364,11 @@ m4_define([OVSDB_CHECK_IDL_LEADER_ONLY_PY],
    pids=$(cat s2.pid s3.pid s1.pid | tr '\n' ',')
    echo $pids
    AT_CHECK([$PYTHON3 $srcdir/test-ovsdb.py  -t30 idl-cluster $srcdir/idltest.ovsschema $remotes $pids $3],
-        [0], [stdout], [ignore])
+        [0], [stdout], [stderr])
    remote=$(ovsdb_cluster_leader $remotes "idltest")
    leader=$(echo $remote | cut -d'|' -f 1)
    AT_CHECK([grep -F -- "${leader}" stdout], [0], [ignore])
+   OVSDB_CLUSTER_CHECK_MONITOR_COND_SINCE_TXN_IDS([stderr])
    AT_CLEANUP])
 
 OVSDB_CHECK_IDL_LEADER_ONLY_PY([Check Python IDL connects to leader], 3, ['remote'])
@@ -2393,6 +2411,7 @@ m4_define([OVSDB_CHECK_CLUSTER_IDL_C],
    AT_CHECK([sort stdout | uuidfilt]m4_if([$7],,, [[| $7]]),
             [0], [$5])
    m4_ifval([$8], [AT_CHECK([grep '$8' stderr], [1])], [], [])
+   OVSDB_CLUSTER_CHECK_MONITOR_COND_SINCE_TXN_IDS([stderr])
    AT_CLEANUP])
 
 # Same as OVSDB_CHECK_CLUSTER_IDL_C but uses the Python IDL implementation.
@@ -2413,6 +2432,7 @@ m4_define([OVSDB_CHECK_CLUSTER_IDL_PY],
    AT_CHECK([sort stdout | uuidfilt]m4_if([$7],,, [[| $7]]),
             [0], [$5])
    m4_if([$8], [AT_CHECK([grep '$8' stderr], [1])], [], [])
+   OVSDB_CLUSTER_CHECK_MONITOR_COND_SINCE_TXN_IDS([stderr])
    AT_CLEANUP])
 
 m4_define([OVSDB_CHECK_CLUSTER_IDL],
diff --git a/tests/ovsdb-monitor.at b/tests/ovsdb-monitor.at
index 12cd2bc31..3e1df18a1 100644
--- a/tests/ovsdb-monitor.at
+++ b/tests/ovsdb-monitor.at
@@ -586,6 +586,7 @@ row,action,name,number,_version
   [[]],
   [],
   [[[[["name","==","one"],["name","==","two"]]]],
+   [[[["name","==","two"],["name","==","one"]]]],
    [[[["name","==","one"]]]],
     [[[false]]],
     [[[true]]]])
diff --git a/tests/pmd.at b/tests/pmd.at
index 7c333a901..7bdaca9e7 100644
--- a/tests/pmd.at
+++ b/tests/pmd.at
@@ -1355,18 +1355,22 @@ AT_CHECK([echo 'table=0,in_port=p1,ip,nw_dst=10.1.0.0/16 actions=ct(commit)' | d
           ovs-ofctl --bundle replace-flows br0 -])
 AT_CHECK([ovs-appctl revalidator/wait])
 
+dnl Prevent flows from expiring.
+AT_CHECK([ovs-appctl time/stop])
+
 AT_CHECK([ovs-appctl netdev-dummy/receive p1 'ipv4(src=10.0.0.1,dst=10.1.0.2,proto=6),tcp(src=1,dst=2)'])
 OVS_WAIT_UNTIL_EQUAL([ovs-appctl dpctl/dump-flows | sed 's/.*core: [[0-9]]*//' | strip_xout_keep_actions], [
 recirc_id(0),in_port(1),packet_type(ns=0,id=0),eth_type(0x0800),ipv4(dst=10.1.0.2/255.255.0.0,frag=no), packets:0, bytes:0, used:never, actions:ct(commit)
 recirc_id(0),in_port(1),packet_type(ns=0,id=0),eth_type(0x0800),ipv4(dst=10.1.2.2/255.255.255.0,frag=no), packets:0, bytes:0, used:0.0s, actions:ct(commit)])
 
-dnl Hold the prefix 10.1.2.2/24 by another 10s.
-AT_CHECK([ovs-appctl netdev-dummy/receive p1 'ipv4(src=10.0.0.1,dst=10.1.2.2,proto=6),tcp(src=1,dst=2)'])
 dnl Send more 10.1.0.2 to make 10.1.0.0/16 tuple prepend 10.1.2.0/24 tuple in the pvector of subtables.
 for i in $(seq 0 256); do
   AT_CHECK([ovs-appctl netdev-dummy/receive p1 'ipv4(src=10.0.0.1,dst=10.1.0.2,proto=6),tcp(src=1,dst=2)'])
 done
 
+dnl Warp time enough to trigger subtable optimization.
+AT_CHECK([ovs-appctl time/warp 500 2000], [0], [ignore])
+
 AT_CHECK([echo 'table=0,in_port=p1,ip,nw_dst=10.1.0.0/16 actions=p2' | dnl
           ovs-ofctl --bundle replace-flows br0 -])
 
diff --git a/tests/system-traffic.at b/tests/system-traffic.at
index 808c492a2..418cd32fe 100644
--- a/tests/system-traffic.at
+++ b/tests/system-traffic.at
@@ -2516,6 +2516,7 @@ AT_CLEANUP
 
 AT_SETUP([conntrack - ct flush])
 CHECK_CONNTRACK()
+CHECK_CONNTRACK_SCTP()
 OVS_TRAFFIC_VSWITCHD_START()
 
 ADD_NAMESPACES(at_ns0, at_ns1)
@@ -2526,10 +2527,8 @@ ADD_VETH(p1, at_ns1, br0, "10.1.1.2/24")
 AT_DATA([flows.txt], [dnl
 priority=1,action=drop
 priority=10,arp,action=normal
-priority=100,in_port=1,udp,action=ct(commit),2
-priority=100,in_port=2,udp,action=ct(zone=5,commit),1
-priority=100,in_port=1,icmp,action=ct(commit),2
-priority=100,in_port=2,icmp,action=ct(zone=5,commit),1
+priority=100,in_port=1,ip,action=ct(commit),2
+priority=100,in_port=2,ip,action=ct(zone=5,commit),1
 ])
 
 AT_CHECK([ovs-ofctl --bundle add-flows br0 flows.txt])
@@ -2692,6 +2691,25 @@ udp,orig=(src=10.1.1.2,dst=10.1.1.1,sport=2,dport=1),reply=(src=10.1.1.1,dst=10.
 
 AT_CHECK([FLUSH_CMD])
 
+AT_CHECK([ovs-appctl dpctl/dump-conntrack | grep "10\.1\.1\.1"], [1])
+
+dnl Test SCTP flush based on port.
+AT_CHECK([ovs-ofctl -O OpenFlow13 packet-out br0 "in_port=1 packet=50540000000a50540000000908004500003400010000408464410a0101010a01010200010002000000009178f7d30100001470e18ccc00000000000a000a00000000 actions=resubmit(,0)"])
+AT_CHECK([ovs-ofctl -O OpenFlow13 packet-out br0 "in_port=2 packet=50540000000950540000000a08004500003400010000408464410a0101020a010101000200010000000098f29e470100001470e18ccc00000000000a000a00000000 actions=resubmit(,0)"])
+
+AT_CHECK([ovs-appctl dpctl/dump-conntrack | grep "10\.1\.1\.1" | sed "s/,protoinfo=.*$//" | sort], [0], [dnl
+sctp,orig=(src=10.1.1.1,dst=10.1.1.2,sport=1,dport=2),reply=(src=10.1.1.2,dst=10.1.1.1,sport=2,dport=1)
+sctp,orig=(src=10.1.1.2,dst=10.1.1.1,sport=2,dport=1),reply=(src=10.1.1.1,dst=10.1.1.2,sport=1,dport=2),zone=5
+])
+
+AT_CHECK([FLUSH_CMD 'ct_nw_src=10.1.1.1,ct_nw_proto=132,ct_tp_src=1,ct_tp_dst=2'])
+
+AT_CHECK([ovs-appctl dpctl/dump-conntrack | grep "10\.1\.1\.1" | sed "s/,protoinfo=.*$//" | sort], [0], [dnl
+sctp,orig=(src=10.1.1.2,dst=10.1.1.1,sport=2,dport=1),reply=(src=10.1.1.1,dst=10.1.1.2,sport=1,dport=2),zone=5
+])
+
+AT_CHECK([FLUSH_CMD 'ct_nw_src=10.1.1.2,ct_nw_proto=132,ct_tp_src=2,ct_tp_dst=1'])
+
 AT_CHECK([ovs-appctl dpctl/dump-conntrack | grep "10\.1\.1\.1"], [1])
 ])
 
diff --git a/tests/test-barrier.c b/tests/test-barrier.c
index 3bc5291cc..fb0ab0e69 100644
--- a/tests/test-barrier.c
+++ b/tests/test-barrier.c
@@ -14,13 +14,13 @@
  * limitations under the License.
  */
 
-#include <getopt.h>
-
 #include <config.h>
+#undef NDEBUG
+#include <getopt.h>
 
-#include "ovs-thread.h"
-#include "ovs-rcu.h"
 #include "ovstest.h"
+#include "ovs-rcu.h"
+#include "ovs-thread.h"
 #include "random.h"
 #include "util.h"
 
diff --git a/tests/test-id-fpool.c b/tests/test-id-fpool.c
index 25275d9ae..27800aa9b 100644
--- a/tests/test-id-fpool.c
+++ b/tests/test-id-fpool.c
@@ -14,12 +14,12 @@
  * limitations under the License.
  */
 
+#include <config.h>
 #undef NDEBUG
 #include <assert.h>
 #include <getopt.h>
 #include <string.h>
-
-#include <config.h>
+#include <sys/time.h>
 
 #include "command-line.h"
 #include "id-fpool.h"
diff --git a/tests/test-mpsc-queue.c b/tests/test-mpsc-queue.c
index a38bf9e6d..16aa804a0 100644
--- a/tests/test-mpsc-queue.c
+++ b/tests/test-mpsc-queue.c
@@ -14,12 +14,12 @@
  * limitations under the License.
  */
 
+#include <config.h>
 #undef NDEBUG
 #include <assert.h>
 #include <getopt.h>
 #include <string.h>
-
-#include <config.h>
+#include <sys/time.h>
 
 #include "command-line.h"
 #include "guarded-list.h"
diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml
index cfcde34ff..1e2a1267d 100644
--- a/vswitchd/vswitch.xml
+++ b/vswitchd/vswitch.xml
@@ -3797,14 +3797,29 @@ ovs-vsctl add-port br0 p0 -- set Interface p0 type=patch options:peer=p1 \
             Interface description string.
           </column>
 
-          <column name="status" key="pci-vendor_id">
-            Vendor ID of PCI device.
+          <column name="status" key="bus_info">
+            Bus name and bus info such as Vendor ID and Device ID of PCI
+            device.
           </column>
 
-          <column name="status" key="pci-device_id">
-            Device ID of PCI device.
+          <column name="status" key="dpdk-vf-mac">
+            Ethernet address set for this VF interface. Only reported for dpdk
+            VF representors.
           </column>
 
+          <column name="status" key="rx_steering">
+            Hardware Rx queue steering policy in use.
+          </column>
+
+          <column name="status" key="rx_steering_queue">
+            ID of rx steering queue. Only reported if <code>rx-steering</code>
+            is supported by hardware.
+          </column>
+
+          <column name="status" key="rss_queues">
+            IDs of rss queues. Only reported if <code>rx-steering</code> is
+            supported by hardware.
+          </column>
       </group>
     </group>