#include "net-sysfs.h"
+/* Instead of increasing this, you should create a hash table. */
+#define MAX_GRO_SKBS 8
+
/*
* The list of packet types we will receive (as opposed to discard)
* and the routines to invoke.
ARPHRD_PIMREG, ARPHRD_HIPPI, ARPHRD_ASH, ARPHRD_ECONET,
ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL,
ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211,
- ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_VOID,
- ARPHRD_NONE};
+ ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET,
+ ARPHRD_PHONET_PIPE, ARPHRD_VOID, ARPHRD_NONE};
static const char *netdev_lock_name[] =
{"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25",
"_xmit_PIMREG", "_xmit_HIPPI", "_xmit_ASH", "_xmit_ECONET",
"_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL",
"_xmit_FCFABRIC", "_xmit_IEEE802_TR", "_xmit_IEEE80211",
- "_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_VOID",
- "_xmit_NONE"};
+ "_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET",
+ "_xmit_PHONET_PIPE", "_xmit_VOID", "_xmit_NONE"};
static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)];
static struct lock_class_key netdev_addr_lock_key[ARRAY_SIZE(netdev_lock_type)];
__be16 type = skb->protocol;
int err;
- BUG_ON(skb_shinfo(skb)->frag_list);
-
skb_reset_mac_header(skb);
skb->mac_len = skb->network_header - skb->mac_header;
__skb_pull(skb, skb->mac_len);
}
}
+static int napi_gro_complete(struct sk_buff *skb)
+{
+ struct packet_type *ptype;
+ __be16 type = skb->protocol;
+ struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK];
+ int err = -ENOENT;
+
+ if (!skb_shinfo(skb)->frag_list)
+ goto out;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(ptype, head, list) {
+ if (ptype->type != type || ptype->dev || !ptype->gro_complete)
+ continue;
+
+ err = ptype->gro_complete(skb);
+ break;
+ }
+ rcu_read_unlock();
+
+ if (err) {
+ WARN_ON(&ptype->list == head);
+ kfree_skb(skb);
+ return NET_RX_SUCCESS;
+ }
+
+out:
+ __skb_push(skb, -skb_network_offset(skb));
+ return netif_receive_skb(skb);
+}
+
+void napi_gro_flush(struct napi_struct *napi)
+{
+ struct sk_buff *skb, *next;
+
+ for (skb = napi->gro_list; skb; skb = next) {
+ next = skb->next;
+ skb->next = NULL;
+ napi_gro_complete(skb);
+ }
+
+ napi->gro_list = NULL;
+}
+EXPORT_SYMBOL(napi_gro_flush);
+
+int napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
+{
+ struct sk_buff **pp = NULL;
+ struct packet_type *ptype;
+ __be16 type = skb->protocol;
+ struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK];
+ int count = 0;
+ int same_flow;
+ int mac_len;
+
+ if (!(skb->dev->features & NETIF_F_GRO))
+ goto normal;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(ptype, head, list) {
+ struct sk_buff *p;
+
+ if (ptype->type != type || ptype->dev || !ptype->gro_receive)
+ continue;
+
+ skb_reset_network_header(skb);
+ mac_len = skb->network_header - skb->mac_header;
+ skb->mac_len = mac_len;
+ NAPI_GRO_CB(skb)->same_flow = 0;
+ NAPI_GRO_CB(skb)->flush = 0;
+
+ for (p = napi->gro_list; p; p = p->next) {
+ count++;
+ NAPI_GRO_CB(p)->same_flow =
+ p->mac_len == mac_len &&
+ !memcmp(skb_mac_header(p), skb_mac_header(skb),
+ mac_len);
+ NAPI_GRO_CB(p)->flush = 0;
+ }
+
+ pp = ptype->gro_receive(&napi->gro_list, skb);
+ break;
+ }
+ rcu_read_unlock();
+
+ if (&ptype->list == head)
+ goto normal;
+
+ same_flow = NAPI_GRO_CB(skb)->same_flow;
+
+ if (pp) {
+ struct sk_buff *nskb = *pp;
+
+ *pp = nskb->next;
+ nskb->next = NULL;
+ napi_gro_complete(nskb);
+ count--;
+ }
+
+ if (same_flow)
+ goto ok;
+
+ if (NAPI_GRO_CB(skb)->flush || count >= MAX_GRO_SKBS) {
+ __skb_push(skb, -skb_network_offset(skb));
+ goto normal;
+ }
+
+ NAPI_GRO_CB(skb)->count = 1;
+ skb->next = napi->gro_list;
+ napi->gro_list = skb;
+
+ok:
+ return NET_RX_SUCCESS;
+
+normal:
+ return netif_receive_skb(skb);
+}
+EXPORT_SYMBOL(napi_gro_receive);
+
static int process_backlog(struct napi_struct *napi, int quota)
{
int work = 0;
}
local_irq_enable();
- netif_receive_skb(skb);
+ napi_gro_receive(napi, skb);
} while (++work < quota && jiffies == start_time);
+ napi_gro_flush(napi);
+
return work;
}
}
EXPORT_SYMBOL(__napi_schedule);
+void __napi_complete(struct napi_struct *n)
+{
+ BUG_ON(!test_bit(NAPI_STATE_SCHED, &n->state));
+ BUG_ON(n->gro_list);
+
+ list_del(&n->poll_list);
+ smp_mb__before_clear_bit();
+ clear_bit(NAPI_STATE_SCHED, &n->state);
+}
+EXPORT_SYMBOL(__napi_complete);
+
+void napi_complete(struct napi_struct *n)
+{
+ unsigned long flags;
+
+ /*
+ * don't let napi dequeue from the cpu poll list
+ * just in case its running on a different cpu
+ */
+ if (unlikely(test_bit(NAPI_STATE_NPSVC, &n->state)))
+ return;
+
+ napi_gro_flush(n);
+ local_irq_save(flags);
+ __napi_complete(n);
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL(napi_complete);
+
+void netif_napi_add(struct net_device *dev, struct napi_struct *napi,
+ int (*poll)(struct napi_struct *, int), int weight)
+{
+ INIT_LIST_HEAD(&napi->poll_list);
+ napi->gro_list = NULL;
+ napi->poll = poll;
+ napi->weight = weight;
+ list_add(&napi->dev_list, &dev->napi_list);
+#ifdef CONFIG_NETPOLL
+ napi->dev = dev;
+ spin_lock_init(&napi->poll_lock);
+ napi->poll_owner = -1;
+#endif
+ set_bit(NAPI_STATE_SCHED, &napi->state);
+}
+EXPORT_SYMBOL(netif_napi_add);
+
+void netif_napi_del(struct napi_struct *napi)
+{
+ struct sk_buff *skb, *next;
+
+ list_del_init(&napi->dev_list);
+
+ for (skb = napi->gro_list; skb; skb = next) {
+ next = skb->next;
+ skb->next = NULL;
+ kfree_skb(skb);
+ }
+
+ napi->gro_list = NULL;
+}
+EXPORT_SYMBOL(netif_napi_del);
+
static void net_rx_action(struct softirq_action *h)
{
static int __dev_set_promiscuity(struct net_device *dev, int inc)
{
unsigned short old_flags = dev->flags;
+ uid_t uid;
+ gid_t gid;
ASSERT_RTNL();
printk(KERN_INFO "device %s %s promiscuous mode\n",
dev->name, (dev->flags & IFF_PROMISC) ? "entered" :
"left");
- if (audit_enabled)
+ if (audit_enabled) {
+ current_uid_gid(&uid, &gid);
audit_log(current->audit_context, GFP_ATOMIC,
AUDIT_ANOM_PROMISCUOUS,
"dev=%s prom=%d old_prom=%d auid=%u uid=%u gid=%u ses=%u",
dev->name, (dev->flags & IFF_PROMISC),
(old_flags & IFF_PROMISC),
audit_get_loginuid(current),
- current->uid, current->gid,
+ uid, gid,
audit_get_sessionid(current));
+ }
dev_change_rx_flags(dev, IFF_PROMISC);
}
{
int err;
struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
- const struct net_device_ops *ops = dev->netdev_ops;
+ const struct net_device_ops *ops;
if (!dev)
return -ENODEV;
+ ops = dev->netdev_ops;
+
switch (cmd) {
case SIOCSIFFLAGS: /* Set interface flags */
return dev_change_flags(dev, ifr->ifr_flags);
dev->num_tx_queues = queue_count;
dev->real_num_tx_queues = queue_count;
- if (sizeof_priv) {
- dev->priv = ((char *)dev +
- ((sizeof(struct net_device) + NETDEV_ALIGN_CONST)
- & ~NETDEV_ALIGN_CONST));
- }
-
dev->gso_max_size = GSO_MAX_SIZE;
netdev_init_queues(dev);
- netpoll_netdev_init(dev);
+ INIT_LIST_HEAD(&dev->napi_list);
setup(dev);
strcpy(dev->name, name);
return dev;
*/
void free_netdev(struct net_device *dev)
{
+ struct napi_struct *p, *n;
+
release_net(dev_net(dev));
kfree(dev->_tx);
+ list_for_each_entry_safe(p, n, &dev->napi_list, dev_list)
+ netif_napi_del(p);
+
/* Compatibility with error handling in drivers */
if (dev->reg_state == NETREG_UNINITIALIZED) {
kfree((char *)dev - dev->padded);
queue->backlog.poll = process_backlog;
queue->backlog.weight = weight_p;
+ queue->backlog.gro_list = NULL;
}
dev_boot_phase = 0;
git.openpandora.org / pandora-kernel.git / blobdiff