openvswitch: Add support for network namespaces.
Following patch adds support for network namespace to openvswitch. Since it must release devices when namespaces are destroyed, a side effect of this patch is that the module no longer keeps a refcount but instead cleans up any state when it is unloaded. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com>
This commit is contained in:
Pravin B Shelar
committed by
Jesse Gross
Jesse Gross
parent
0d7614f09c
commit
46df7b8145
@@ -49,11 +49,28 @@
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#include <linux/dmi.h>
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#include <linux/workqueue.h>
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#include <net/genetlink.h>
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#include <net/net_namespace.h>
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#include <net/netns/generic.h>
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#include "datapath.h"
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#include "flow.h"
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#include "vport-internal_dev.h"
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/**
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* struct ovs_net - Per net-namespace data for ovs.
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* @dps: List of datapaths to enable dumping them all out.
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* Protected by genl_mutex.
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*/
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struct ovs_net {
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struct list_head dps;
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};
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static int ovs_net_id __read_mostly;
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#define REHASH_FLOW_INTERVAL (10 * 60 * HZ)
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static void rehash_flow_table(struct work_struct *work);
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static DECLARE_DELAYED_WORK(rehash_flow_wq, rehash_flow_table);
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/**
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* DOC: Locking:
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*
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@@ -71,29 +88,21 @@
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* each other.
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*/
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/* Global list of datapaths to enable dumping them all out.
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* Protected by genl_mutex.
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*/
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static LIST_HEAD(dps);
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#define REHASH_FLOW_INTERVAL (10 * 60 * HZ)
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static void rehash_flow_table(struct work_struct *work);
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static DECLARE_DELAYED_WORK(rehash_flow_wq, rehash_flow_table);
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static struct vport *new_vport(const struct vport_parms *);
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static int queue_gso_packets(int dp_ifindex, struct sk_buff *,
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static int queue_gso_packets(struct net *, int dp_ifindex, struct sk_buff *,
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const struct dp_upcall_info *);
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static int queue_userspace_packet(int dp_ifindex, struct sk_buff *,
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static int queue_userspace_packet(struct net *, int dp_ifindex,
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struct sk_buff *,
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const struct dp_upcall_info *);
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/* Must be called with rcu_read_lock, genl_mutex, or RTNL lock. */
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static struct datapath *get_dp(int dp_ifindex)
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static struct datapath *get_dp(struct net *net, int dp_ifindex)
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{
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struct datapath *dp = NULL;
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struct net_device *dev;
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rcu_read_lock();
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dev = dev_get_by_index_rcu(&init_net, dp_ifindex);
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dev = dev_get_by_index_rcu(net, dp_ifindex);
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if (dev) {
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struct vport *vport = ovs_internal_dev_get_vport(dev);
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if (vport)
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@@ -135,6 +144,7 @@ static void destroy_dp_rcu(struct rcu_head *rcu)
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ovs_flow_tbl_destroy((__force struct flow_table *)dp->table);
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free_percpu(dp->stats_percpu);
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release_net(ovs_dp_get_net(dp));
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kfree(dp);
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}
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@@ -220,11 +230,12 @@ static struct genl_family dp_packet_genl_family = {
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.hdrsize = sizeof(struct ovs_header),
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.name = OVS_PACKET_FAMILY,
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.version = OVS_PACKET_VERSION,
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.maxattr = OVS_PACKET_ATTR_MAX
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.maxattr = OVS_PACKET_ATTR_MAX,
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.netnsok = true
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};
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int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb,
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const struct dp_upcall_info *upcall_info)
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const struct dp_upcall_info *upcall_info)
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{
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struct dp_stats_percpu *stats;
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int dp_ifindex;
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@@ -242,9 +253,9 @@ int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb,
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}
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if (!skb_is_gso(skb))
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err = queue_userspace_packet(dp_ifindex, skb, upcall_info);
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err = queue_userspace_packet(ovs_dp_get_net(dp), dp_ifindex, skb, upcall_info);
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else
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err = queue_gso_packets(dp_ifindex, skb, upcall_info);
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err = queue_gso_packets(ovs_dp_get_net(dp), dp_ifindex, skb, upcall_info);
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if (err)
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goto err;
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@@ -260,7 +271,8 @@ err:
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return err;
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}
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static int queue_gso_packets(int dp_ifindex, struct sk_buff *skb,
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static int queue_gso_packets(struct net *net, int dp_ifindex,
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struct sk_buff *skb,
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const struct dp_upcall_info *upcall_info)
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{
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unsigned short gso_type = skb_shinfo(skb)->gso_type;
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@@ -276,7 +288,7 @@ static int queue_gso_packets(int dp_ifindex, struct sk_buff *skb,
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/* Queue all of the segments. */
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skb = segs;
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do {
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err = queue_userspace_packet(dp_ifindex, skb, upcall_info);
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err = queue_userspace_packet(net, dp_ifindex, skb, upcall_info);
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if (err)
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break;
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@@ -306,7 +318,8 @@ static int queue_gso_packets(int dp_ifindex, struct sk_buff *skb,
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return err;
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}
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static int queue_userspace_packet(int dp_ifindex, struct sk_buff *skb,
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static int queue_userspace_packet(struct net *net, int dp_ifindex,
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struct sk_buff *skb,
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const struct dp_upcall_info *upcall_info)
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{
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struct ovs_header *upcall;
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@@ -362,7 +375,7 @@ static int queue_userspace_packet(int dp_ifindex, struct sk_buff *skb,
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skb_copy_and_csum_dev(skb, nla_data(nla));
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err = genlmsg_unicast(&init_net, user_skb, upcall_info->pid);
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err = genlmsg_unicast(net, user_skb, upcall_info->pid);
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out:
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kfree_skb(nskb);
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@@ -370,15 +383,10 @@ out:
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}
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/* Called with genl_mutex. */
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static int flush_flows(int dp_ifindex)
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static int flush_flows(struct datapath *dp)
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{
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struct flow_table *old_table;
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struct flow_table *new_table;
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struct datapath *dp;
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dp = get_dp(dp_ifindex);
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if (!dp)
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return -ENODEV;
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old_table = genl_dereference(dp->table);
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new_table = ovs_flow_tbl_alloc(TBL_MIN_BUCKETS);
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@@ -668,7 +676,7 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
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packet->priority = flow->key.phy.priority;
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rcu_read_lock();
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dp = get_dp(ovs_header->dp_ifindex);
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dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
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err = -ENODEV;
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if (!dp)
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goto err_unlock;
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@@ -742,7 +750,8 @@ static struct genl_family dp_flow_genl_family = {
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.hdrsize = sizeof(struct ovs_header),
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.name = OVS_FLOW_FAMILY,
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.version = OVS_FLOW_VERSION,
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.maxattr = OVS_FLOW_ATTR_MAX
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.maxattr = OVS_FLOW_ATTR_MAX,
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.netnsok = true
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};
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static struct genl_multicast_group ovs_dp_flow_multicast_group = {
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@@ -894,7 +903,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
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goto error;
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}
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dp = get_dp(ovs_header->dp_ifindex);
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dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
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error = -ENODEV;
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if (!dp)
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goto error;
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@@ -995,7 +1004,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
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ovs_dp_flow_multicast_group.id, info->nlhdr,
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GFP_KERNEL);
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else
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netlink_set_err(init_net.genl_sock, 0,
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netlink_set_err(sock_net(skb->sk)->genl_sock, 0,
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ovs_dp_flow_multicast_group.id, PTR_ERR(reply));
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return 0;
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@@ -1023,7 +1032,7 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
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if (err)
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return err;
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dp = get_dp(ovs_header->dp_ifindex);
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dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
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if (!dp)
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return -ENODEV;
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@@ -1052,16 +1061,17 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
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int err;
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int key_len;
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dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
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if (!dp)
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return -ENODEV;
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if (!a[OVS_FLOW_ATTR_KEY])
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return flush_flows(ovs_header->dp_ifindex);
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return flush_flows(dp);
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err = ovs_flow_from_nlattrs(&key, &key_len, a[OVS_FLOW_ATTR_KEY]);
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if (err)
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return err;
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dp = get_dp(ovs_header->dp_ifindex);
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if (!dp)
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return -ENODEV;
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table = genl_dereference(dp->table);
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flow = ovs_flow_tbl_lookup(table, &key, key_len);
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if (!flow)
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@@ -1090,7 +1100,7 @@ static int ovs_flow_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
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struct datapath *dp;
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struct flow_table *table;
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dp = get_dp(ovs_header->dp_ifindex);
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dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
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if (!dp)
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return -ENODEV;
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@@ -1152,7 +1162,8 @@ static struct genl_family dp_datapath_genl_family = {
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.hdrsize = sizeof(struct ovs_header),
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.name = OVS_DATAPATH_FAMILY,
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.version = OVS_DATAPATH_VERSION,
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.maxattr = OVS_DP_ATTR_MAX
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.maxattr = OVS_DP_ATTR_MAX,
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.netnsok = true
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};
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static struct genl_multicast_group ovs_dp_datapath_multicast_group = {
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@@ -1210,18 +1221,19 @@ static struct sk_buff *ovs_dp_cmd_build_info(struct datapath *dp, u32 pid,
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}
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/* Called with genl_mutex and optionally with RTNL lock also. */
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static struct datapath *lookup_datapath(struct ovs_header *ovs_header,
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static struct datapath *lookup_datapath(struct net *net,
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struct ovs_header *ovs_header,
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struct nlattr *a[OVS_DP_ATTR_MAX + 1])
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{
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struct datapath *dp;
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if (!a[OVS_DP_ATTR_NAME])
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dp = get_dp(ovs_header->dp_ifindex);
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dp = get_dp(net, ovs_header->dp_ifindex);
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else {
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struct vport *vport;
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rcu_read_lock();
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vport = ovs_vport_locate(nla_data(a[OVS_DP_ATTR_NAME]));
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vport = ovs_vport_locate(net, nla_data(a[OVS_DP_ATTR_NAME]));
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dp = vport && vport->port_no == OVSP_LOCAL ? vport->dp : NULL;
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rcu_read_unlock();
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}
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@@ -1235,6 +1247,7 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
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struct sk_buff *reply;
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struct datapath *dp;
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struct vport *vport;
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struct ovs_net *ovs_net;
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int err;
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err = -EINVAL;
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@@ -1242,15 +1255,14 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
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goto err;
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rtnl_lock();
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err = -ENODEV;
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if (!try_module_get(THIS_MODULE))
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goto err_unlock_rtnl;
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err = -ENOMEM;
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dp = kzalloc(sizeof(*dp), GFP_KERNEL);
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if (dp == NULL)
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goto err_put_module;
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goto err_unlock_rtnl;
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INIT_LIST_HEAD(&dp->port_list);
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ovs_dp_set_net(dp, hold_net(sock_net(skb->sk)));
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/* Allocate table. */
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err = -ENOMEM;
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@@ -1287,7 +1299,8 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
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if (IS_ERR(reply))
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goto err_destroy_local_port;
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list_add_tail(&dp->list_node, &dps);
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ovs_net = net_generic(ovs_dp_get_net(dp), ovs_net_id);
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list_add_tail(&dp->list_node, &ovs_net->dps);
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rtnl_unlock();
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genl_notify(reply, genl_info_net(info), info->snd_pid,
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@@ -1302,34 +1315,20 @@ err_destroy_percpu:
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err_destroy_table:
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ovs_flow_tbl_destroy(genl_dereference(dp->table));
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err_free_dp:
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release_net(ovs_dp_get_net(dp));
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kfree(dp);
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err_put_module:
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module_put(THIS_MODULE);
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err_unlock_rtnl:
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rtnl_unlock();
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err:
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return err;
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}
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static int ovs_dp_cmd_del(struct sk_buff *skb, struct genl_info *info)
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/* Called with genl_mutex. */
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static void __dp_destroy(struct datapath *dp)
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{
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struct vport *vport, *next_vport;
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struct sk_buff *reply;
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struct datapath *dp;
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int err;
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rtnl_lock();
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dp = lookup_datapath(info->userhdr, info->attrs);
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err = PTR_ERR(dp);
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if (IS_ERR(dp))
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goto exit_unlock;
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reply = ovs_dp_cmd_build_info(dp, info->snd_pid,
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info->snd_seq, OVS_DP_CMD_DEL);
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err = PTR_ERR(reply);
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if (IS_ERR(reply))
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goto exit_unlock;
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list_for_each_entry_safe(vport, next_vport, &dp->port_list, node)
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if (vport->port_no != OVSP_LOCAL)
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ovs_dp_detach_port(vport);
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@@ -1345,17 +1344,32 @@ static int ovs_dp_cmd_del(struct sk_buff *skb, struct genl_info *info)
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rtnl_unlock();
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call_rcu(&dp->rcu, destroy_dp_rcu);
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module_put(THIS_MODULE);
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}
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static int ovs_dp_cmd_del(struct sk_buff *skb, struct genl_info *info)
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{
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struct sk_buff *reply;
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struct datapath *dp;
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int err;
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dp = lookup_datapath(sock_net(skb->sk), info->userhdr, info->attrs);
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err = PTR_ERR(dp);
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if (IS_ERR(dp))
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return err;
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reply = ovs_dp_cmd_build_info(dp, info->snd_pid,
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info->snd_seq, OVS_DP_CMD_DEL);
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err = PTR_ERR(reply);
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if (IS_ERR(reply))
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return err;
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__dp_destroy(dp);
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genl_notify(reply, genl_info_net(info), info->snd_pid,
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ovs_dp_datapath_multicast_group.id, info->nlhdr,
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GFP_KERNEL);
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return 0;
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exit_unlock:
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rtnl_unlock();
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return err;
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}
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static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
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@@ -1364,7 +1378,7 @@ static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
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struct datapath *dp;
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int err;
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dp = lookup_datapath(info->userhdr, info->attrs);
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dp = lookup_datapath(sock_net(skb->sk), info->userhdr, info->attrs);
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if (IS_ERR(dp))
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return PTR_ERR(dp);
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@@ -1372,7 +1386,7 @@ static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
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info->snd_seq, OVS_DP_CMD_NEW);
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if (IS_ERR(reply)) {
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err = PTR_ERR(reply);
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netlink_set_err(init_net.genl_sock, 0,
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netlink_set_err(sock_net(skb->sk)->genl_sock, 0,
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ovs_dp_datapath_multicast_group.id, err);
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return 0;
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}
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@@ -1389,7 +1403,7 @@ static int ovs_dp_cmd_get(struct sk_buff *skb, struct genl_info *info)
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struct sk_buff *reply;
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struct datapath *dp;
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dp = lookup_datapath(info->userhdr, info->attrs);
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dp = lookup_datapath(sock_net(skb->sk), info->userhdr, info->attrs);
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if (IS_ERR(dp))
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return PTR_ERR(dp);
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@@ -1403,11 +1417,12 @@ static int ovs_dp_cmd_get(struct sk_buff *skb, struct genl_info *info)
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static int ovs_dp_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
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{
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struct ovs_net *ovs_net = net_generic(sock_net(skb->sk), ovs_net_id);
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struct datapath *dp;
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int skip = cb->args[0];
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int i = 0;
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list_for_each_entry(dp, &dps, list_node) {
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list_for_each_entry(dp, &ovs_net->dps, list_node) {
|
||||
if (i >= skip &&
|
||||
ovs_dp_cmd_fill_info(dp, skb, NETLINK_CB(cb->skb).pid,
|
||||
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
||||
@@ -1459,7 +1474,8 @@ static struct genl_family dp_vport_genl_family = {
|
||||
.hdrsize = sizeof(struct ovs_header),
|
||||
.name = OVS_VPORT_FAMILY,
|
||||
.version = OVS_VPORT_VERSION,
|
||||
.maxattr = OVS_VPORT_ATTR_MAX
|
||||
.maxattr = OVS_VPORT_ATTR_MAX,
|
||||
.netnsok = true
|
||||
};
|
||||
|
||||
struct genl_multicast_group ovs_dp_vport_multicast_group = {
|
||||
@@ -1525,14 +1541,15 @@ struct sk_buff *ovs_vport_cmd_build_info(struct vport *vport, u32 pid,
|
||||
}
|
||||
|
||||
/* Called with RTNL lock or RCU read lock. */
|
||||
static struct vport *lookup_vport(struct ovs_header *ovs_header,
|
||||
static struct vport *lookup_vport(struct net *net,
|
||||
struct ovs_header *ovs_header,
|
||||
struct nlattr *a[OVS_VPORT_ATTR_MAX + 1])
|
||||
{
|
||||
struct datapath *dp;
|
||||
struct vport *vport;
|
||||
|
||||
if (a[OVS_VPORT_ATTR_NAME]) {
|
||||
vport = ovs_vport_locate(nla_data(a[OVS_VPORT_ATTR_NAME]));
|
||||
vport = ovs_vport_locate(net, nla_data(a[OVS_VPORT_ATTR_NAME]));
|
||||
if (!vport)
|
||||
return ERR_PTR(-ENODEV);
|
||||
if (ovs_header->dp_ifindex &&
|
||||
@@ -1545,7 +1562,7 @@ static struct vport *lookup_vport(struct ovs_header *ovs_header,
|
||||
if (port_no >= DP_MAX_PORTS)
|
||||
return ERR_PTR(-EFBIG);
|
||||
|
||||
dp = get_dp(ovs_header->dp_ifindex);
|
||||
dp = get_dp(net, ovs_header->dp_ifindex);
|
||||
if (!dp)
|
||||
return ERR_PTR(-ENODEV);
|
||||
|
||||
@@ -1574,7 +1591,7 @@ static int ovs_vport_cmd_new(struct sk_buff *skb, struct genl_info *info)
|
||||
goto exit;
|
||||
|
||||
rtnl_lock();
|
||||
dp = get_dp(ovs_header->dp_ifindex);
|
||||
dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
|
||||
err = -ENODEV;
|
||||
if (!dp)
|
||||
goto exit_unlock;
|
||||
@@ -1638,7 +1655,7 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info)
|
||||
int err;
|
||||
|
||||
rtnl_lock();
|
||||
vport = lookup_vport(info->userhdr, a);
|
||||
vport = lookup_vport(sock_net(skb->sk), info->userhdr, a);
|
||||
err = PTR_ERR(vport);
|
||||
if (IS_ERR(vport))
|
||||
goto exit_unlock;
|
||||
@@ -1658,7 +1675,7 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info)
|
||||
reply = ovs_vport_cmd_build_info(vport, info->snd_pid, info->snd_seq,
|
||||
OVS_VPORT_CMD_NEW);
|
||||
if (IS_ERR(reply)) {
|
||||
netlink_set_err(init_net.genl_sock, 0,
|
||||
netlink_set_err(sock_net(skb->sk)->genl_sock, 0,
|
||||
ovs_dp_vport_multicast_group.id, PTR_ERR(reply));
|
||||
goto exit_unlock;
|
||||
}
|
||||
@@ -1679,7 +1696,7 @@ static int ovs_vport_cmd_del(struct sk_buff *skb, struct genl_info *info)
|
||||
int err;
|
||||
|
||||
rtnl_lock();
|
||||
vport = lookup_vport(info->userhdr, a);
|
||||
vport = lookup_vport(sock_net(skb->sk), info->userhdr, a);
|
||||
err = PTR_ERR(vport);
|
||||
if (IS_ERR(vport))
|
||||
goto exit_unlock;
|
||||
@@ -1714,7 +1731,7 @@ static int ovs_vport_cmd_get(struct sk_buff *skb, struct genl_info *info)
|
||||
int err;
|
||||
|
||||
rcu_read_lock();
|
||||
vport = lookup_vport(ovs_header, a);
|
||||
vport = lookup_vport(sock_net(skb->sk), ovs_header, a);
|
||||
err = PTR_ERR(vport);
|
||||
if (IS_ERR(vport))
|
||||
goto exit_unlock;
|
||||
@@ -1741,7 +1758,7 @@ static int ovs_vport_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
|
||||
u32 port_no;
|
||||
int retval;
|
||||
|
||||
dp = get_dp(ovs_header->dp_ifindex);
|
||||
dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
|
||||
if (!dp)
|
||||
return -ENODEV;
|
||||
|
||||
@@ -1766,28 +1783,6 @@ static int ovs_vport_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
|
||||
return retval;
|
||||
}
|
||||
|
||||
static void rehash_flow_table(struct work_struct *work)
|
||||
{
|
||||
struct datapath *dp;
|
||||
|
||||
genl_lock();
|
||||
|
||||
list_for_each_entry(dp, &dps, list_node) {
|
||||
struct flow_table *old_table = genl_dereference(dp->table);
|
||||
struct flow_table *new_table;
|
||||
|
||||
new_table = ovs_flow_tbl_rehash(old_table);
|
||||
if (!IS_ERR(new_table)) {
|
||||
rcu_assign_pointer(dp->table, new_table);
|
||||
ovs_flow_tbl_deferred_destroy(old_table);
|
||||
}
|
||||
}
|
||||
|
||||
genl_unlock();
|
||||
|
||||
schedule_delayed_work(&rehash_flow_wq, REHASH_FLOW_INTERVAL);
|
||||
}
|
||||
|
||||
static struct genl_ops dp_vport_genl_ops[] = {
|
||||
{ .cmd = OVS_VPORT_CMD_NEW,
|
||||
.flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
|
||||
@@ -1872,6 +1867,59 @@ error:
|
||||
return err;
|
||||
}
|
||||
|
||||
static void rehash_flow_table(struct work_struct *work)
|
||||
{
|
||||
struct datapath *dp;
|
||||
struct net *net;
|
||||
|
||||
genl_lock();
|
||||
rtnl_lock();
|
||||
for_each_net(net) {
|
||||
struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
|
||||
|
||||
list_for_each_entry(dp, &ovs_net->dps, list_node) {
|
||||
struct flow_table *old_table = genl_dereference(dp->table);
|
||||
struct flow_table *new_table;
|
||||
|
||||
new_table = ovs_flow_tbl_rehash(old_table);
|
||||
if (!IS_ERR(new_table)) {
|
||||
rcu_assign_pointer(dp->table, new_table);
|
||||
ovs_flow_tbl_deferred_destroy(old_table);
|
||||
}
|
||||
}
|
||||
}
|
||||
rtnl_unlock();
|
||||
genl_unlock();
|
||||
|
||||
schedule_delayed_work(&rehash_flow_wq, REHASH_FLOW_INTERVAL);
|
||||
}
|
||||
|
||||
static int __net_init ovs_init_net(struct net *net)
|
||||
{
|
||||
struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
|
||||
|
||||
INIT_LIST_HEAD(&ovs_net->dps);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __net_exit ovs_exit_net(struct net *net)
|
||||
{
|
||||
struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
|
||||
struct datapath *dp, *dp_next;
|
||||
|
||||
genl_lock();
|
||||
list_for_each_entry_safe(dp, dp_next, &ovs_net->dps, list_node)
|
||||
__dp_destroy(dp);
|
||||
genl_unlock();
|
||||
}
|
||||
|
||||
static struct pernet_operations ovs_net_ops = {
|
||||
.init = ovs_init_net,
|
||||
.exit = ovs_exit_net,
|
||||
.id = &ovs_net_id,
|
||||
.size = sizeof(struct ovs_net),
|
||||
};
|
||||
|
||||
static int __init dp_init(void)
|
||||
{
|
||||
struct sk_buff *dummy_skb;
|
||||
@@ -1889,10 +1937,14 @@ static int __init dp_init(void)
|
||||
if (err)
|
||||
goto error_flow_exit;
|
||||
|
||||
err = register_netdevice_notifier(&ovs_dp_device_notifier);
|
||||
err = register_pernet_device(&ovs_net_ops);
|
||||
if (err)
|
||||
goto error_vport_exit;
|
||||
|
||||
err = register_netdevice_notifier(&ovs_dp_device_notifier);
|
||||
if (err)
|
||||
goto error_netns_exit;
|
||||
|
||||
err = dp_register_genl();
|
||||
if (err < 0)
|
||||
goto error_unreg_notifier;
|
||||
@@ -1903,6 +1955,8 @@ static int __init dp_init(void)
|
||||
|
||||
error_unreg_notifier:
|
||||
unregister_netdevice_notifier(&ovs_dp_device_notifier);
|
||||
error_netns_exit:
|
||||
unregister_pernet_device(&ovs_net_ops);
|
||||
error_vport_exit:
|
||||
ovs_vport_exit();
|
||||
error_flow_exit:
|
||||
@@ -1914,9 +1968,10 @@ error:
|
||||
static void dp_cleanup(void)
|
||||
{
|
||||
cancel_delayed_work_sync(&rehash_flow_wq);
|
||||
rcu_barrier();
|
||||
dp_unregister_genl(ARRAY_SIZE(dp_genl_families));
|
||||
unregister_netdevice_notifier(&ovs_dp_device_notifier);
|
||||
unregister_pernet_device(&ovs_net_ops);
|
||||
rcu_barrier();
|
||||
ovs_vport_exit();
|
||||
ovs_flow_exit();
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user