#! /bin/sh
-# Copyright (C) 2009, 2010, 2011, 2012 Nicira, Inc.
+# Copyright (C) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
log_success_msg "ovs-vswitchd is already running"
else
# Increase the limit on the number of open file descriptors.
- # ovs-vswitchd needs 16 per datapath, plus a few extra, so this
- # should allow for 256 (or more) bridges.
+ # On Linux, ovs-vswitchd needs about one file descriptor per
+ # switch port, so this allows a very large number of switch
+ # ports.
ulimit -n 5000
# Start ovs-vswitchd.
done
}
-save_flows () {
- if set X `ovs_vsctl -- --real list-br`; then
- shift
- if "$datadir/scripts/ovs-save" save-flows "$@" > "$script_flows"; then
- chmod +x "$script_flows"
- return 0
- fi
+ovs_save () {
+ bridges=`ovs_vsctl -- --real list-br`
+ if [ -n "${bridges}" ] && \
+ "$datadir/scripts/ovs-save" "$1" ${bridges} > "$2"; then
+ chmod +x "$2"
+ return 0
fi
- script_flows=
- return 1
+ eval $3=""
+ [ -z "${bridges}" ] && return 0
+}
+
+save_ofports_if_required () {
+ # Save ofports if we are upgrading from a pre-1.10 branch.
+ case `ovs-appctl version | sed 1q` in
+ "ovs-vswitchd (Open vSwitch) 1."[0-9].*)
+ action "Saving ofport values" ovs_save save-ofports \
+ "${script_ofports}" script_ofports
+ ;;
+ *)
+ script_ofports=""
+ ;;
+ esac
}
save_interfaces () {
> "${script_interfaces}"
}
+restore_ofports () {
+ [ -n "${script_ofports}" ] && \
+ action "Restoring ofport values" "${script_ofports}"
+}
+
restore_flows () {
[ -n "${script_flows}" ] && \
action "Restoring saved flows" "${script_flows}"
script_interfaces=`mktemp`
script_flows=`mktemp`
- trap 'rm -f "${script_interfaces}" "${script_flows}" ' 0
+ script_ofports=`mktemp`
+ trap 'rm -f "${script_interfaces}" "${script_flows}" "${script_ofports}"' 0
- action "Saving flows" save_flows
+ action "Saving flows" ovs_save save-flows "${script_flows}" script_flows
+
+ save_ofports_if_required
# Restart the database first, since a large database may take a
# while to load, and we want to minimize forwarding disruption.
stop_ovsdb
start_ovsdb
+ # Restore of ofports should happen before vswitchd is restarted.
+ restore_ofports
+
stop_forwarding
if action "Saving interface configuration" save_interfaces; then
script_flows=`mktemp`
trap 'rm -f "${script_flows}"' 0
- action "Saving flows" save_flows
+ action "Saving flows" ovs_save save-flows "${script_flows}" \
+ script_flows
fi
# Restart the database first, since a large database may take a