/*
- * Copyright (c) 2007-2011 Nicira Networks.
+ * Copyright (c) 2007-2012 Nicira, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* 02110-1301, USA
*/
-#include <linux/dcache.h>
#include <linux/etherdevice.h>
#include <linux/if.h>
#include <linux/if_vlan.h>
+#include <linux/jhash.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/rtnetlink.h>
#include <linux/compat.h>
#include <linux/version.h>
+#include <net/net_namespace.h>
+#include "datapath.h"
#include "vport.h"
#include "vport-internal_dev.h"
/* List of statically compiled vport implementations. Don't forget to also
* add yours to the list at the bottom of vport.h. */
static const struct vport_ops *base_vport_ops_list[] = {
- &netdev_vport_ops,
- &internal_vport_ops,
- &patch_vport_ops,
- &gre_vport_ops,
+ &ovs_netdev_vport_ops,
+ &ovs_internal_vport_ops,
+ &ovs_patch_vport_ops,
+ &ovs_gre_vport_ops,
+ &ovs_gre_ft_vport_ops,
+ &ovs_gre64_vport_ops,
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
- &capwap_vport_ops,
+ &ovs_capwap_vport_ops,
#endif
};
#define VPORT_HASH_BUCKETS 1024
/**
- * vport_init - initialize vport subsystem
+ * ovs_vport_init - initialize vport subsystem
*
* Called at module load time to initialize the vport subsystem and any
* compiled in vport types.
*/
-int vport_init(void)
+int ovs_vport_init(void)
{
int err;
int i;
if (!err)
vport_ops_list[n_vport_types++] = new_ops;
else if (new_ops->flags & VPORT_F_REQUIRED) {
- vport_exit();
+ ovs_vport_exit();
goto error;
}
}
}
/**
- * vport_exit - shutdown vport subsystem
+ * ovs_vport_exit - shutdown vport subsystem
*
* Called at module exit time to shutdown the vport subsystem and any
* initialized vport types.
*/
-void vport_exit(void)
+void ovs_vport_exit(void)
{
int i;
kfree(dev_table);
}
-static struct hlist_head *hash_bucket(const char *name)
+static struct hlist_head *hash_bucket(struct net *net, const char *name)
{
- unsigned int hash = full_name_hash(name, strlen(name));
+ unsigned int hash = jhash(name, strlen(name), (unsigned long) net);
return &dev_table[hash & (VPORT_HASH_BUCKETS - 1)];
}
/**
- * vport_locate - find a port that has already been created
+ * ovs_vport_locate - find a port that has already been created
*
* @name: name of port to find
*
* Must be called with RTNL or RCU read lock.
*/
-struct vport *vport_locate(const char *name)
+struct vport *ovs_vport_locate(struct net *net, const char *name)
{
- struct hlist_head *bucket = hash_bucket(name);
+ struct hlist_head *bucket = hash_bucket(net, name);
struct vport *vport;
struct hlist_node *node;
hlist_for_each_entry_rcu(vport, node, bucket, hash_node)
- if (!strcmp(name, vport->ops->get_name(vport)))
+ if (!strcmp(name, vport->ops->get_name(vport)) &&
+ net_eq(ovs_dp_get_net(vport->dp), net))
return vport;
return NULL;
static struct kobj_type brport_ktype = {
#ifdef CONFIG_SYSFS
- .sysfs_ops = &brport_sysfs_ops,
+ .sysfs_ops = &ovs_brport_sysfs_ops,
#endif
.release = release_vport
};
/**
- * vport_alloc - allocate and initialize new vport
+ * ovs_vport_alloc - allocate and initialize new vport
*
* @priv_size: Size of private data area to allocate.
* @ops: vport device ops
* Allocate and initialize a new vport defined by @ops. The vport will contain
* a private data area of size @priv_size that can be accessed using
* vport_priv(). vports that are no longer needed should be released with
- * vport_free().
+ * ovs_vport_free().
*/
-struct vport *vport_alloc(int priv_size, const struct vport_ops *ops,
- const struct vport_parms *parms)
+struct vport *ovs_vport_alloc(int priv_size, const struct vport_ops *ops,
+ const struct vport_parms *parms)
{
struct vport *vport;
size_t alloc_size;
vport->port_no = parms->port_no;
vport->upcall_pid = parms->upcall_pid;
vport->ops = ops;
+ INIT_HLIST_NODE(&vport->dp_hash_node);
/* Initialize kobject for bridge. This will be added as
* /sys/class/net/<devname>/brport later, if sysfs is enabled. */
kobject_init(&vport->kobj, &brport_ktype);
vport->percpu_stats = alloc_percpu(struct vport_percpu_stats);
- if (!vport->percpu_stats)
+ if (!vport->percpu_stats) {
+ kfree(vport);
return ERR_PTR(-ENOMEM);
+ }
spin_lock_init(&vport->stats_lock);
}
/**
- * vport_free - uninitialize and free vport
+ * ovs_vport_free - uninitialize and free vport
*
* @vport: vport to free
*
- * Frees a vport allocated with vport_alloc() when it is no longer needed.
+ * Frees a vport allocated with ovs_vport_alloc() when it is no longer needed.
*
* The caller must ensure that an RCU grace period has passed since the last
* time @vport was in a datapath.
*/
-void vport_free(struct vport *vport)
+void ovs_vport_free(struct vport *vport)
{
free_percpu(vport->percpu_stats);
}
/**
- * vport_add - add vport device (for kernel callers)
+ * ovs_vport_add - add vport device (for kernel callers)
*
* @parms: Information about new vport.
*
* Creates a new vport with the specified configuration (which is dependent on
* device type). RTNL lock must be held.
*/
-struct vport *vport_add(const struct vport_parms *parms)
+struct vport *ovs_vport_add(const struct vport_parms *parms)
{
struct vport *vport;
int err = 0;
for (i = 0; i < n_vport_types; i++) {
if (vport_ops_list[i]->type == parms->type) {
+ struct hlist_head *bucket;
+
vport = vport_ops_list[i]->create(parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto out;
}
- hlist_add_head_rcu(&vport->hash_node,
- hash_bucket(vport->ops->get_name(vport)));
+ bucket = hash_bucket(ovs_dp_get_net(vport->dp),
+ vport->ops->get_name(vport));
+ hlist_add_head_rcu(&vport->hash_node, bucket);
return vport;
}
}
}
/**
- * vport_set_options - modify existing vport device (for kernel callers)
+ * ovs_vport_set_options - modify existing vport device (for kernel callers)
*
* @vport: vport to modify.
* @port: New configuration.
* Modifies an existing device with the specified configuration (which is
* dependent on device type). RTNL lock must be held.
*/
-int vport_set_options(struct vport *vport, struct nlattr *options)
+int ovs_vport_set_options(struct vport *vport, struct nlattr *options)
{
ASSERT_RTNL();
}
/**
- * vport_del - delete existing vport device
+ * ovs_vport_del - delete existing vport device
*
* @vport: vport to delete.
*
* Detaches @vport from its datapath and destroys it. It is possible to fail
* for reasons such as lack of memory. RTNL lock must be held.
*/
-void vport_del(struct vport *vport)
+void ovs_vport_del(struct vport *vport)
{
ASSERT_RTNL();
}
/**
- * vport_set_addr - set device Ethernet address (for kernel callers)
+ * ovs_vport_set_addr - set device Ethernet address (for kernel callers)
*
* @vport: vport on which to set Ethernet address.
* @addr: New address.
* setting the Ethernet address, in which case the result will always be
* -EOPNOTSUPP. RTNL lock must be held.
*/
-int vport_set_addr(struct vport *vport, const unsigned char *addr)
+int ovs_vport_set_addr(struct vport *vport, const unsigned char *addr)
{
ASSERT_RTNL();
}
/**
- * vport_set_stats - sets offset device stats
+ * ovs_vport_set_stats - sets offset device stats
*
* @vport: vport on which to set stats
* @stats: stats to set
*
* Must be called with RTNL lock.
*/
-void vport_set_stats(struct vport *vport, struct ovs_vport_stats *stats)
+void ovs_vport_set_stats(struct vport *vport, struct ovs_vport_stats *stats)
{
ASSERT_RTNL();
}
/**
- * vport_get_stats - retrieve device stats
+ * ovs_vport_get_stats - retrieve device stats
*
* @vport: vport from which to retrieve the stats
* @stats: location to store stats
*
* Must be called with RTNL lock or rcu_read_lock.
*/
-void vport_get_stats(struct vport *vport, struct ovs_vport_stats *stats)
+void ovs_vport_get_stats(struct vport *vport, struct ovs_vport_stats *stats)
{
int i;
}
/**
- * vport_get_options - retrieve device options
+ * ovs_vport_get_options - retrieve device options
*
* @vport: vport from which to retrieve the options.
* @skb: sk_buff where options should be appended.
*
* Must be called with RTNL lock or rcu_read_lock.
*/
-int vport_get_options(const struct vport *vport, struct sk_buff *skb)
+int ovs_vport_get_options(const struct vport *vport, struct sk_buff *skb)
{
struct nlattr *nla;
}
/**
- * vport_receive - pass up received packet to the datapath for processing
+ * ovs_vport_receive - pass up received packet to the datapath for processing
*
* @vport: vport that received the packet
* @skb: skb that was received
* skb->data should point to the Ethernet header. The caller must have already
* called compute_ip_summed() to initialize the checksumming fields.
*/
-void vport_receive(struct vport *vport, struct sk_buff *skb)
+void ovs_vport_receive(struct vport *vport, struct sk_buff *skb)
{
struct vport_percpu_stats *stats;
- stats = per_cpu_ptr(vport->percpu_stats, smp_processor_id());
-
+ stats = this_cpu_ptr(vport->percpu_stats);
u64_stats_update_begin(&stats->sync);
stats->rx_packets++;
stats->rx_bytes += skb->len;
OVS_CB(skb)->flow = NULL;
if (!(vport->ops->flags & VPORT_F_TUN_ID))
- OVS_CB(skb)->tun_id = 0;
+ OVS_CB(skb)->tun_key = NULL;
- dp_process_received_packet(vport, skb);
+ ovs_dp_process_received_packet(vport, skb);
}
/**
- * vport_send - send a packet on a device
+ * ovs_vport_send - send a packet on a device
*
* @vport: vport on which to send the packet
* @skb: skb to send
* Sends the given packet and returns the length of data sent. Either RTNL
* lock or rcu_read_lock must be held.
*/
-int vport_send(struct vport *vport, struct sk_buff *skb)
+int ovs_vport_send(struct vport *vport, struct sk_buff *skb)
{
int sent = vport->ops->send(vport, skb);
if (likely(sent)) {
struct vport_percpu_stats *stats;
- stats = per_cpu_ptr(vport->percpu_stats, smp_processor_id());
+ stats = this_cpu_ptr(vport->percpu_stats);
u64_stats_update_begin(&stats->sync);
stats->tx_packets++;
}
/**
- * vport_record_error - indicate device error to generic stats layer
+ * ovs_vport_record_error - indicate device error to generic stats layer
*
* @vport: vport that encountered the error
* @err_type: one of enum vport_err_type types to indicate the error type
* If using the vport generic stats layer indicate that an error of the given
* type has occured.
*/
-void vport_record_error(struct vport *vport, enum vport_err_type err_type)
+void ovs_vport_record_error(struct vport *vport, enum vport_err_type err_type)
{
spin_lock(&vport->stats_lock);
case VPORT_E_TX_ERROR:
vport->err_stats.tx_errors++;
break;
- };
+ }
spin_unlock(&vport->stats_lock);
}