/**
* ovs_vport_exit - shutdown vport subsystem
*
* Called at module exit time to shutdown the vport subsystem.
*/
void ovs_vport_exit(void)
{
ovs_stt_cleanup_module();
vxlan_cleanup_module();
geneve_cleanup_module();
ipgre_fini();
lisp_cleanup_module();
kfree(dev_table);
}
/**
* ovs_vport_exit - shutdown vport subsystem
*
* Called at module exit time to shutdown the vport subsystem.
*/
void ovs_vport_exit(void)
{
if (compat_gre_loaded) {
gre_exit();
ipgre_fini();
}
ovs_stt_cleanup_module();
vxlan_cleanup_module();
geneve_cleanup_module();
if (compat_ip6_tunnel_loaded)
ip6_tunnel_cleanup();
ip6gre_fini();
lisp_cleanup_module();
kfree(dev_table);
}
/**
* ovs_vport_init - initialize vport subsystem
*
* Called at module load time to initialize the vport subsystem.
*/
int ovs_vport_init(void)
{
int err;
dev_table = kzalloc(VPORT_HASH_BUCKETS * sizeof(struct hlist_head),
GFP_KERNEL);
if (!dev_table)
return -ENOMEM;
err = lisp_init_module();
if (err)
goto err_lisp;
err = ipgre_init();
if (err)
goto err_gre;
err = geneve_init_module();
if (err)
goto err_geneve;
err = vxlan_init_module();
if (err)
goto err_vxlan;
err = ovs_stt_init_module();
if (err)
goto err_stt;
return 0;
err_stt:
vxlan_cleanup_module();
err_vxlan:
geneve_cleanup_module();
err_geneve:
ipgre_fini();
err_gre:
lisp_cleanup_module();
err_lisp:
kfree(dev_table);
return err;
}
/**
* ovs_vport_init - initialize vport subsystem
*
* Called at module load time to initialize the vport subsystem.
*/
int ovs_vport_init(void)
{
int err;
dev_table = kcalloc(VPORT_HASH_BUCKETS, sizeof(struct hlist_head),
GFP_KERNEL);
if (!dev_table)
return -ENOMEM;
err = lisp_init_module();
if (err)
goto err_lisp;
err = gre_init();
if (err && err != -EEXIST) {
goto err_gre;
} else {
if (err == -EEXIST) {
pr_warn("Cannot take GRE protocol rx entry"\
"- The GRE/ERSPAN rx feature not supported\n");
/* continue GRE tx */
}
err = ipgre_init();
if (err && err != -EEXIST)
goto err_ipgre;
compat_gre_loaded = true;
}
err = ip6gre_init();
if (err && err != -EEXIST) {
goto err_ip6gre;
} else {
if (err == -EEXIST) {
pr_warn("IPv6 GRE/ERSPAN Rx mode is not supported\n");
goto skip_ip6_tunnel_init;
}
}
err = ip6_tunnel_init();
if (err)
goto err_ip6_tunnel;
else
compat_ip6_tunnel_loaded = true;
skip_ip6_tunnel_init:
err = geneve_init_module();
if (err)
goto err_geneve;
err = vxlan_init_module();
if (err)
goto err_vxlan;
err = ovs_stt_init_module();
if (err)
goto err_stt;
return 0;
ovs_stt_cleanup_module();
err_stt:
vxlan_cleanup_module();
err_vxlan:
geneve_cleanup_module();
err_geneve:
ip6_tunnel_cleanup();
err_ip6_tunnel:
ip6gre_fini();
err_ip6gre:
ipgre_fini();
err_ipgre:
gre_exit();
err_gre:
lisp_cleanup_module();
err_lisp:
kfree(dev_table);
return err;
}