static struct vport *gre_tnl_create(const struct vport_parms *parms)
{
struct net *net = ovs_dp_get_net(parms->dp);
struct net_device *dev;
struct vport *vport;
int err;
vport = ovs_vport_alloc(0, &ovs_gre_vport_ops, parms);
if (IS_ERR(vport))
return vport;
rtnl_lock();
dev = gretap_fb_dev_create(net, parms->name, NET_NAME_USER);
if (IS_ERR(dev)) {
rtnl_unlock();
ovs_vport_free(vport);
return ERR_CAST(dev);
}
err = dev_change_flags(dev, dev->flags | IFF_UP);
if (err < 0) {
rtnl_delete_link(dev);
rtnl_unlock();
ovs_vport_free(vport);
return ERR_PTR(err);
}
rtnl_unlock();
return vport;
}
static struct vport *vxlan_tnl_create(const struct vport_parms *parms)
{
struct net *net = ovs_dp_get_net(parms->dp);
struct nlattr *options = parms->options;
struct vxlan_port *vxlan_port;
struct vxlan_sock *vs;
struct vport *vport;
struct nlattr *a;
u16 dst_port;
int err;
if (!options) {
err = -EINVAL;
goto error;
}
a = nla_find_nested(options, OVS_TUNNEL_ATTR_DST_PORT);
if (a && nla_len(a) == sizeof(u16)) {
dst_port = nla_get_u16(a);
} else {
/* Require destination port from userspace. */
err = -EINVAL;
goto error;
}
vport = ovs_vport_alloc(sizeof(struct vxlan_port),
&ovs_vxlan_vport_ops, parms);
if (IS_ERR(vport))
return vport;
vxlan_port = vxlan_vport(vport);
strncpy(vxlan_port->name, parms->name, IFNAMSIZ);
a = nla_find_nested(options, OVS_TUNNEL_ATTR_EXTENSION);
if (a) {
err = vxlan_configure_exts(vport, a);
if (err) {
ovs_vport_free(vport);
goto error;
}
}
vs = vxlan_sock_add(net, htons(dst_port), vxlan_rcv, vport, true,
vxlan_port->exts);
if (IS_ERR(vs)) {
ovs_vport_free(vport);
return (void *)vs;
}
vxlan_port->vs = vs;
return vport;
error:
return ERR_PTR(err);
}
static struct vport *netdev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct netdev_vport *netdev_vport;
int err;
vport = ovs_vport_alloc(sizeof(struct netdev_vport),
&ovs_netdev_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
netdev_vport = netdev_vport_priv(vport);
netdev_vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), parms->name);
if (!netdev_vport->dev) {
err = -ENODEV;
goto error_free_vport;
}
if (netdev_vport->dev->flags & IFF_LOOPBACK ||
netdev_vport->dev->type != ARPHRD_ETHER ||
ovs_is_internal_dev(netdev_vport->dev)) {
err = -EINVAL;
goto error_put;
}
rtnl_lock();
err = netdev_master_upper_dev_link(netdev_vport->dev,
get_dpdev(vport->dp));
if (err)
goto error_unlock;
err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
vport);
if (err)
goto error_master_upper_dev_unlink;
dev_set_promiscuity(netdev_vport->dev, 1);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
dev_disable_lro(netdev_vport->dev);
#endif
netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;
rtnl_unlock();
netdev_init();
return vport;
error_master_upper_dev_unlink:
netdev_upper_dev_unlink(netdev_vport->dev, get_dpdev(vport->dp));
error_unlock:
rtnl_unlock();
error_put:
dev_put(netdev_vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
static struct vport *netdev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct netdev_vport *netdev_vport;
int err;
vport = ovs_vport_alloc(sizeof(struct netdev_vport),
&ovs_netdev_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
netdev_vport = netdev_vport_priv(vport);
netdev_vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), parms->name);
if (!netdev_vport->dev) {
err = -ENODEV;
goto error_free_vport;
}
if (netdev_vport->dev->flags & IFF_LOOPBACK ||
netdev_vport->dev->type != ARPHRD_ETHER ||
ovs_is_internal_dev(netdev_vport->dev)) {
err = -EINVAL;
goto error_put;
}
rtnl_lock();
#ifdef HAVE_RHEL_OVS_HOOK
rcu_assign_pointer(netdev_vport->dev->ax25_ptr, vport);
atomic_inc(&nr_bridges);
rcu_assign_pointer(openvswitch_handle_frame_hook, netdev_frame_hook);
#else
err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
vport);
if (err)
goto error_unlock;
#endif
dev_set_promiscuity(netdev_vport->dev, 1);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
dev_disable_lro(netdev_vport->dev);
#endif
netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;
rtnl_unlock();
return vport;
#ifndef HAVE_RHEL_OVS_HOOK
error_unlock:
#endif
rtnl_unlock();
error_put:
dev_put(netdev_vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
static void internal_dev_destructor(struct net_device *dev)
{
struct vport *vport = ovs_internal_dev_get_vport(dev);
ovs_vport_free(vport);
free_netdev(dev);
}
static void free_port_rcu(struct rcu_head *rcu)
{
struct netdev_vport *netdev_vport = container_of(rcu,
struct netdev_vport, rcu);
dev_put(netdev_vport->dev);
ovs_vport_free(vport_from_priv(netdev_vport));
}
static void vport_netdev_free(struct rcu_head *rcu)
{
struct vport *vport = container_of(rcu, struct vport, rcu);
if (vport->dev)
dev_put(vport->dev);
ovs_vport_free(vport);
}
static void free_port_rcu(struct rcu_head *rcu)
{
struct patch_vport *patch_vport = container_of(rcu,
struct patch_vport, rcu);
kfree((struct patch_config __force *)patch_vport->patchconf);
ovs_vport_free(vport_from_priv(patch_vport));
}
static void internal_dev_destructor(struct net_device *dev)
{
struct vport *vport = ovs_internal_dev_get_vport(dev);
ovs_vport_free(vport);
#ifndef HAVE_NEEDS_FREE_NETDEV
free_netdev(dev);
#endif
}
static struct vport *internal_dev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct internal_dev *internal_dev;
int err;
vport = ovs_vport_alloc(0, &ovs_internal_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
vport->dev = alloc_netdev(sizeof(struct internal_dev),
parms->name, NET_NAME_USER, do_setup);
if (!vport->dev) {
err = -ENOMEM;
goto error_free_vport;
}
vport->dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
if (!vport->dev->tstats) {
err = -ENOMEM;
goto error_free_netdev;
}
#ifdef HAVE_IFF_PHONY_HEADROOM
vport->dev->needed_headroom = vport->dp->max_headroom;
#endif
dev_net_set(vport->dev, ovs_dp_get_net(vport->dp));
internal_dev = internal_dev_priv(vport->dev);
internal_dev->vport = vport;
/* Restrict bridge port to current netns. */
if (vport->port_no == OVSP_LOCAL)
vport->dev->features |= NETIF_F_NETNS_LOCAL;
rtnl_lock();
err = register_netdevice(vport->dev);
if (err)
goto error_unlock;
dev_set_promiscuity(vport->dev, 1);
rtnl_unlock();
netif_start_queue(vport->dev);
return vport;
error_unlock:
rtnl_unlock();
free_percpu(vport->dev->tstats);
error_free_netdev:
free_netdev(vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
static void netdev_destroy(struct vport *vport)
{
struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
netdev_rx_handler_unregister(netdev_vport->dev);
dev_set_promiscuity(netdev_vport->dev, -1);
synchronize_rcu();
dev_put(netdev_vport->dev);
ovs_vport_free(vport);
}
static struct vport *internal_dev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct netdev_vport *netdev_vport;
struct internal_dev *internal_dev;
int err;
vport = ovs_vport_alloc(sizeof(struct netdev_vport),
&ovs_internal_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
netdev_vport = netdev_vport_priv(vport);
netdev_vport->dev = alloc_netdev(sizeof(struct internal_dev),
parms->name, NET_NAME_UNKNOWN,
do_setup);
if (!netdev_vport->dev) {
err = -ENOMEM;
goto error_free_vport;
}
dev_net_set(netdev_vport->dev, ovs_dp_get_net(vport->dp));
internal_dev = internal_dev_priv(netdev_vport->dev);
internal_dev->vport = vport;
/* Restrict bridge port to current netns. */
if (vport->port_no == OVSP_LOCAL)
netdev_vport->dev->features |= NETIF_F_NETNS_LOCAL;
rtnl_lock();
err = register_netdevice(netdev_vport->dev);
if (err)
goto error_free_netdev;
dev_set_promiscuity(netdev_vport->dev, 1);
rtnl_unlock();
netif_start_queue(netdev_vport->dev);
return vport;
error_free_netdev:
rtnl_unlock();
free_netdev(netdev_vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
/*
* 重要！通过相应的参数进行网络设备的注册
* 何时调用？
*/
static struct vport *netdev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct netdev_vport *netdev_vport; // 看vport_netdev.h中的定义
int err;
//根据具体的ovs_netdev_vport_ops和参数构造一个vport
// 第一个参数代表私有数据的大小，这里正是要放struct netdev_vport
vport = ovs_vport_alloc(sizeof(struct netdev_vport), &ovs_netdev_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
netdev_vport = netdev_vport_priv(vport);
netdev_vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), parms->name);
if (!netdev_vport->dev) {
err = -ENODEV;
goto error_free_vport;
}
if (netdev_vport->dev->flags & IFF_LOOPBACK ||
netdev_vport->dev->type != ARPHRD_ETHER ||
ovs_is_internal_dev(netdev_vport->dev)) {
err = -EINVAL;
goto error_put;
}
/* 重要！就是设置net_device两个字段 netdev_rx_handler_register - register receive handler
* @dev: device to register a handler for
* @rx_handler: receive handler to register
* @rx_handler_data: data pointer that is used by rx handler
*/
err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook, vport);
if (err)
goto error_put;
dev_set_promiscuity(netdev_vport->dev, 1);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
dev_disable_lro(netdev_vport->dev);
#endif
netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;
return vport;
error_put:
dev_put(netdev_vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
static void free_port_rcu(struct rcu_head *rcu)
{
struct netdev_vport *netdev_vport = container_of(rcu,
struct netdev_vport, rcu);
#ifdef HAVE_RHEL_OVS_HOOK
rcu_assign_pointer(netdev_vport->dev->ax25_ptr, NULL);
if (atomic_dec_and_test(&nr_bridges))
rcu_assign_pointer(openvswitch_handle_frame_hook, NULL);
#endif
dev_put(netdev_vport->dev);
ovs_vport_free(vport_from_priv(netdev_vport));
}
static struct vport *patch_create(const struct vport_parms *parms)
{
struct vport *vport;
struct patch_vport *patch_vport;
const char *peer_name;
struct patch_config *patchconf;
struct net *net = ovs_dp_get_net(parms->dp);
int err;
vport = ovs_vport_alloc(sizeof(struct patch_vport),
&ovs_patch_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
patch_vport = patch_vport_priv(vport);
strcpy(patch_vport->name, parms->name);
patchconf = kmalloc(sizeof(struct patch_config), GFP_KERNEL);
if (!patchconf) {
err = -ENOMEM;
goto error_free_vport;
}
err = patch_set_config(vport, parms->options, patchconf);
if (err)
goto error_free_patchconf;
random_ether_addr(patchconf->eth_addr);
rcu_assign_pointer(patch_vport->patchconf, patchconf);
peer_name = patchconf->peer_name;
hlist_add_head(&patch_vport->hash_node, hash_bucket(net, peer_name));
rcu_assign_pointer(patch_vport->peer, ovs_vport_locate(net, peer_name));
update_peers(net, patch_vport->name, vport);
return vport;
error_free_patchconf:
kfree(patchconf);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
struct vport *ovs_netdev_link(struct vport *vport, const char *name)
{
int err;
vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), name);
if (!vport->dev) {
err = -ENODEV;
goto error_free_vport;
}
if (vport->dev->flags & IFF_LOOPBACK ||
(vport->dev->type != ARPHRD_ETHER &&
vport->dev->type != ARPHRD_NONE) ||
ovs_is_internal_dev(vport->dev)) {
err = -EINVAL;
goto error_put;
}
rtnl_lock();
err = netdev_master_upper_dev_link(vport->dev,
get_dpdev(vport->dp),
NULL, NULL, NULL);
if (err)
goto error_unlock;
err = netdev_rx_handler_register(vport->dev, netdev_frame_hook,
vport);
if (err)
goto error_master_upper_dev_unlink;
dev_disable_lro(vport->dev);
dev_set_promiscuity(vport->dev, 1);
vport->dev->priv_flags |= IFF_OVS_DATAPATH;
rtnl_unlock();
return vport;
error_master_upper_dev_unlink:
netdev_upper_dev_unlink(vport->dev, get_dpdev(vport->dp));
error_unlock:
rtnl_unlock();
error_put:
dev_put(vport->dev);
error_free_vport:
ovs_vport_free(vport);
return ERR_PTR(err);
}
static struct vport *geneve_tnl_create(const struct vport_parms *parms)
{
struct net *net = ovs_dp_get_net(parms->dp);
struct nlattr *options = parms->options;
struct geneve_port *geneve_port;
struct net_device *dev;
struct vport *vport;
struct nlattr *a;
u16 dst_port;
int err;
if (!options) {
err = -EINVAL;
goto error;
}
a = nla_find_nested(options, OVS_TUNNEL_ATTR_DST_PORT);
if (a && nla_len(a) == sizeof(u16)) {
dst_port = nla_get_u16(a);
} else {
/* Require destination port from userspace. */
err = -EINVAL;
goto error;
}
vport = ovs_vport_alloc(sizeof(struct geneve_port),
&ovs_geneve_vport_ops, parms);
if (IS_ERR(vport))
return vport;
geneve_port = geneve_vport(vport);
geneve_port->dst_port = dst_port;
rtnl_lock();
dev = geneve_dev_create_fb(net, parms->name, NET_NAME_USER, dst_port);
if (IS_ERR(dev)) {
rtnl_unlock();
ovs_vport_free(vport);
return ERR_CAST(dev);
}
dev_change_flags(dev, dev->flags | IFF_UP);
rtnl_unlock();
return vport;
error:
return ERR_PTR(err);
}
static struct vport *netdev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct netdev_vport *netdev_vport;
int err;
vport = ovs_vport_alloc(sizeof(struct netdev_vport),
&ovs_netdev_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
netdev_vport = netdev_vport_priv(vport);
netdev_vport->dev = dev_get_by_name(&init_net, parms->name);
if (!netdev_vport->dev) {
err = -ENODEV;
goto error_free_vport;
}
if (netdev_vport->dev->flags & IFF_LOOPBACK ||
netdev_vport->dev->type != ARPHRD_ETHER ||
ovs_is_internal_dev(netdev_vport->dev)) {
err = -EINVAL;
goto error_put;
}
err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
vport);
if (err)
goto error_put;
dev_set_promiscuity(netdev_vport->dev, 1);
netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;
return vport;
error_put:
dev_put(netdev_vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
static struct vport *stt_tnl_create(const struct vport_parms *parms)
{
struct net *net = ovs_dp_get_net(parms->dp);
struct nlattr *options = parms->options;
struct stt_port *stt_port;
struct stt_sock *stt_sock;
struct vport *vport;
struct nlattr *a;
int err;
u16 dst_port;
if (!options) {
err = -EINVAL;
goto error;
}
a = nla_find_nested(options, OVS_TUNNEL_ATTR_DST_PORT);
if (a && nla_len(a) == sizeof(u16)) {
dst_port = nla_get_u16(a);
} else {
/* Require destination port from userspace. */
err = -EINVAL;
goto error;
}
vport = ovs_vport_alloc(sizeof(struct stt_port),
&ovs_stt_vport_ops, parms);
if (IS_ERR(vport))
return vport;
stt_port = stt_vport(vport);
strncpy(stt_port->name, parms->name, IFNAMSIZ);
stt_sock = stt_sock_add(net, htons(dst_port), stt_rcv, vport);
if (IS_ERR(stt_sock)) {
ovs_vport_free(vport);
return ERR_CAST(stt_sock);
}
stt_port->stt_sock = stt_sock;
return vport;
error:
return ERR_PTR(err);
}
static struct vport *internal_dev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct netdev_vport *netdev_vport;
struct internal_dev *internal_dev;
int err;
vport = ovs_vport_alloc(sizeof(struct netdev_vport),
&ovs_internal_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
netdev_vport = netdev_vport_priv(vport);
netdev_vport->dev = alloc_netdev(sizeof(struct internal_dev),
parms->name, do_setup);
if (!netdev_vport->dev) {
err = -ENOMEM;
goto error_free_vport;
}
internal_dev = internal_dev_priv(netdev_vport->dev);
internal_dev->vport = vport;
err = register_netdevice(netdev_vport->dev);
if (err)
goto error_free_netdev;
dev_set_promiscuity(netdev_vport->dev, 1);
netif_start_queue(netdev_vport->dev);
return vport;
error_free_netdev:
free_netdev(netdev_vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
static struct vport *vxlan_tnl_create(const struct vport_parms *parms)
{
struct net *net = ovs_dp_get_net(parms->dp);
struct nlattr *options = parms->options;
struct net_device *dev;
struct vport *vport;
struct nlattr *a;
int err;
struct vxlan_config conf = {
.no_share = true,
.flags = VXLAN_F_COLLECT_METADATA,
};
if (!options) {
err = -EINVAL;
goto error;
}
a = nla_find_nested(options, OVS_TUNNEL_ATTR_DST_PORT);
if (a && nla_len(a) == sizeof(u16)) {
conf.dst_port = htons(nla_get_u16(a));
} else {
/* Require destination port from userspace. */
err = -EINVAL;
goto error;
}
vport = ovs_vport_alloc(0, &ovs_vxlan_netdev_vport_ops, parms);
if (IS_ERR(vport))
return vport;
a = nla_find_nested(options, OVS_TUNNEL_ATTR_EXTENSION);
if (a) {
err = vxlan_configure_exts(vport, a, &conf);
if (err) {
ovs_vport_free(vport);
goto error;
}
}
rtnl_lock();
dev = vxlan_dev_create(net, parms->name, NET_NAME_USER, &conf);
if (IS_ERR(dev)) {
rtnl_unlock();
ovs_vport_free(vport);
return ERR_CAST(dev);
}
dev_change_flags(dev, dev->flags | IFF_UP);
rtnl_unlock();
return vport;
error:
return ERR_PTR(err);
}
static struct vport *vxlan_create(const struct vport_parms *parms)
{
struct vport *vport;
vport = vxlan_tnl_create(parms);
if (IS_ERR(vport))
return vport;
return ovs_netdev_link(vport, parms->name);
}
static int vxlan_get_egress_tun_info(struct vport *vport, struct sk_buff *skb,
struct dp_upcall_info *upcall)
{
struct vxlan_dev *vxlan = netdev_priv(vport->dev);
struct net *net = ovs_dp_get_net(vport->dp);
unsigned short family = ip_tunnel_info_af(upcall->egress_tun_info);
__be16 dst_port = vxlan_dev_dst_port(vxlan, family);
__be16 src_port;
int port_min;
int port_max;
inet_get_local_port_range(net, &port_min, &port_max);
src_port = udp_flow_src_port(net, skb, 0, 0, true);
return ovs_tunnel_get_egress_info(upcall, net,
skb, IPPROTO_UDP,
src_port, dst_port);
}
static struct vport_ops ovs_vxlan_netdev_vport_ops = {
.type = OVS_VPORT_TYPE_VXLAN,
.create = vxlan_create,
.destroy = ovs_netdev_tunnel_destroy,
.get_options = vxlan_get_options,
.send = ovs_netdev_send,
.get_egress_tun_info = vxlan_get_egress_tun_info,
};
static int __init ovs_vxlan_tnl_init(void)
{
return ovs_vport_ops_register(&ovs_vxlan_netdev_vport_ops);
}
static void __exit ovs_vxlan_tnl_exit(void)
{
ovs_vport_ops_unregister(&ovs_vxlan_netdev_vport_ops);
}
static void free_vport_rcu(struct rcu_head *rcu)
{
struct vport *vport = container_of(rcu, struct vport, rcu);
ovs_vport_free(vport);
}
static struct vport *netdev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct netdev_vport *netdev_vport;
int err;
vport = ovs_vport_alloc(sizeof(struct netdev_vport),
&ovs_netdev_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
netdev_vport = netdev_vport_priv(vport);
//TODO:这里直接获取, 原因
netdev_vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), parms->name);
if (!netdev_vport->dev) {
err = -ENODEV;
goto error_free_vport;
}
if (netdev_vport->dev->flags & IFF_LOOPBACK ||
netdev_vport->dev->type != ARPHRD_ETHER ||
ovs_is_internal_dev(netdev_vport->dev)) {
err = -EINVAL;
goto error_put;
}
rtnl_lock();
/**
* netdev_master_upper_dev_link - Add a master link to the upper device
* @dev: device
* @upper_dev: new upper device
*
* Adds a link to device which is upper to this one. In this case, only
* one master upper device can be linked, although other non-master devices
* might be linked as well. The caller must hold the RTNL lock.
* On a failure a negative errno code is returned. On success the reference
* counts are adjusted and the function returns zero.
*/
err = netdev_master_upper_dev_link(netdev_vport->dev,
get_dpdev(vport->dp));
if (err)
goto error_unlock;
/**
* netdev_rx_handler_register - register receive handler
* @dev: device to register a handler for
* @rx_handler: receive handler to register
* @rx_handler_data: data pointer that is used by rx handler
*
* Register a receive handler for a device. This handler will then be
* called from __netif_receive_skb. A negative errno code is returned
* on a failure.
*
* The caller must hold the rtnl_mutex.
*
* For a general description of rx_handler, see enum rx_handler_result.
*/
err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
vport);
if (err)
goto error_master_upper_dev_unlink;
dev_set_promiscuity(netdev_vport->dev, 1);
netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;
rtnl_unlock();
return vport;
error_master_upper_dev_unlink:
netdev_upper_dev_unlink(netdev_vport->dev, get_dpdev(vport->dp));
error_unlock:
rtnl_unlock();
error_put:
dev_put(netdev_vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
