This commit add the support to set mtu with ovs-vsctl command like:
ovs-vsctl set interface port mtu=2000
Signed-off-by: zhongbaisong <[email protected]>
diff --git a/vswitchd/bridge.c b/vswitchd/bridge.c
index 8336d70..71f73d6 100644
--- a/vswitchd/bridge.c
+++ b/vswitchd/bridge.c
@@ -307,6 +307,7 @@ static struct iface *iface_find(const char *name);
static struct iface *iface_from_ofp_port(const struct bridge *,
ofp_port_t ofp_port);
static void iface_set_mac(const struct bridge *, const struct port *, struct
iface *);
+static void iface_set_mtu(struct iface *iface);
static void iface_set_ofport(const struct ovsrec_interface *, ofp_port_t
ofport);
static void iface_clear_db_record(const struct ovsrec_interface *if_cfg, char
*errp);
static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
@@ -688,6 +689,7 @@ bridge_reconfigure(const struct ovsrec_open_vswitch
*ovs_cfg)
iface_configure_cfm(iface);
iface_configure_qos(iface, port->cfg->qos);
iface_set_mac(br, port, iface);
+ iface_set_mtu(iface);
ofproto_port_set_bfd(br->ofproto, iface->ofp_port,
&iface->cfg->bfd);
ofproto_port_set_lldp(br->ofproto, iface->ofp_port,
@@ -4440,6 +4442,32 @@ iface_set_mac(const struct bridge *br, const struct port
*port, struct iface *if
}
}
+/* Set MTU of 'iface', if one is specified in the configuration file. */
+static void
+iface_set_mtu(struct iface *iface)
+{
+ int mtu, n_mtu;
+ int error;
+
+ if (strcmp(iface->type, "internal")) {
+ return;
+ }
+
+ if (iface->change_seq != netdev_get_change_seq(iface->netdev))
+ return ;
+
+ n_mtu = iface->cfg->n_mtu;
+ if (n_mtu == 0)
+ return;
+
+ mtu = iface->cfg->mtu[n_mtu-1];
+ error = netdev_set_mtu(iface->netdev, mtu);
+ if (error && error != EOPNOTSUPP) {
+ VLOG_ERR("interface %s: setting MTU failed (%s)",
+ iface->name, ovs_strerror(error));
+ }
+}
+
/* Sets the ofport column of 'if_cfg' to 'ofport'. */
static void
iface_set_ofport(const struct ovsrec_interface *if_cfg, ofp_port_t ofport)
--
1.9.5.msysgit.1
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