[ovs-dev] [PATCH] utilities/ovs-ctl: Force removal of ip_gre/gre
Greg Rose
gvrose8192 at gmail.com
Thu May 31 21:20:45 UTC 2018
On Linux kernels older than 4.16 the user cannot take advantage of
OVS ERSPAN features if the older ip_gre and gre kernel modules are
loaded. In addition, the openvswitch kernel module will fail to
load because it cannot grab the IPPROTO_GRE inet protocol handler
since the gre kernel module has already taken it.
Update the force_reload_kmod() script function to force removal
of the ip_gre and gre built-in kernel modules so that the openvswitch
kernel module can load and provide support for ERSPAN.
Signed-off-by: Greg Rose <gvrose8192 at gmail.com>
---
utilities/ovs-lib.in | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/utilities/ovs-lib.in b/utilities/ovs-lib.in
index 4c3ad0f..5ba4f8b 100644
--- a/utilities/ovs-lib.in
+++ b/utilities/ovs-lib.in
@@ -622,6 +622,14 @@ force_reload_kmod () {
action "Removing $vport module" rmmod $vport
done
+ if test -e /sys/module/ip_gre; then
+ action "Forcing removal of ip_gre module" rmmod ip_gre
+ fi
+
+ if test -e /sys/module/gre; then
+ action "Forcing removal of gre module" rmmod gre
+ fi
+
if test -e /sys/module/openvswitch; then
action "Removing openvswitch module" rmmod openvswitch
fi
--
1.8.3.1
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