local_irq_save(flags);
netif_tx_lock(dev);
- if (netif_queue_stopped(dev) ||
- dev->hard_start_xmit(skb, dev) != NETDEV_TX_OK) {
+ if ((netif_queue_stopped(dev) ||
+ netif_subqueue_stopped(dev, skb->queue_mapping)) ||
+ dev->hard_start_xmit(skb, dev) != NETDEV_TX_OK) {
skb_queue_head(&npinfo->txq, skb);
netif_tx_unlock(dev);
local_irq_restore(flags);
- if (atomic_read(&npinfo->refcnt))
- schedule_delayed_work(&npinfo->tx_work, HZ/10);
+ schedule_delayed_work(&npinfo->tx_work, HZ/10);
return;
}
netif_tx_unlock(dev);
static void poll_napi(struct netpoll *np)
{
struct netpoll_info *npinfo = np->dev->npinfo;
+ struct napi_struct *napi;
int budget = 16;
- if (test_bit(__LINK_STATE_RX_SCHED, &np->dev->state) &&
- npinfo->poll_owner != smp_processor_id() &&
- spin_trylock(&npinfo->poll_lock)) {
- npinfo->rx_flags |= NETPOLL_RX_DROP;
- atomic_inc(&trapped);
+ list_for_each_entry(napi, &np->dev->napi_list, dev_list) {
+ if (test_bit(NAPI_STATE_SCHED, &napi->state) &&
+ napi->poll_owner != smp_processor_id() &&
+ spin_trylock(&napi->poll_lock)) {
+ npinfo->rx_flags |= NETPOLL_RX_DROP;
+ atomic_inc(&trapped);
- np->dev->poll(np->dev, &budget);
+ napi->poll(napi, budget);
- atomic_dec(&trapped);
- npinfo->rx_flags &= ~NETPOLL_RX_DROP;
- spin_unlock(&npinfo->poll_lock);
+ atomic_dec(&trapped);
+ npinfo->rx_flags &= ~NETPOLL_RX_DROP;
+ spin_unlock(&napi->poll_lock);
+ }
}
}
/* Process pending work on NIC */
np->dev->poll_controller(np->dev);
- if (np->dev->poll)
+ if (!list_empty(&np->dev->napi_list))
poll_napi(np);
service_arp_queue(np->dev->npinfo);
return skb;
}
+static int netpoll_owner_active(struct net_device *dev)
+{
+ struct napi_struct *napi;
+
+ list_for_each_entry(napi, &dev->napi_list, dev_list) {
+ if (napi->poll_owner == smp_processor_id())
+ return 1;
+ }
+ return 0;
+}
+
static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb)
{
int status = NETDEV_TX_BUSY;
}
/* don't get messages out of order, and no recursion */
- if (skb_queue_len(&npinfo->txq) == 0 &&
- npinfo->poll_owner != smp_processor_id()) {
+ if (skb_queue_len(&npinfo->txq) == 0 && !netpoll_owner_active(dev)) {
unsigned long flags;
local_irq_save(flags);
for (tries = jiffies_to_usecs(1)/USEC_PER_POLL;
tries > 0; --tries) {
if (netif_tx_trylock(dev)) {
- if (!netif_queue_stopped(dev))
+ if (!netif_queue_stopped(dev) &&
+ !netif_subqueue_stopped(dev, skb->queue_mapping))
status = dev->hard_start_xmit(skb, dev);
netif_tx_unlock(dev);
return 0;
}
+void netpoll_print_options(struct netpoll *np)
+{
+ printk(KERN_INFO "%s: local port %d\n",
+ np->name, np->local_port);
+ printk(KERN_INFO "%s: local IP %d.%d.%d.%d\n",
+ np->name, HIPQUAD(np->local_ip));
+ printk(KERN_INFO "%s: interface %s\n",
+ np->name, np->dev_name);
+ printk(KERN_INFO "%s: remote port %d\n",
+ np->name, np->remote_port);
+ printk(KERN_INFO "%s: remote IP %d.%d.%d.%d\n",
+ np->name, HIPQUAD(np->remote_ip));
+ printk(KERN_INFO "%s: remote ethernet address "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ np->name,
+ np->remote_mac[0],
+ np->remote_mac[1],
+ np->remote_mac[2],
+ np->remote_mac[3],
+ np->remote_mac[4],
+ np->remote_mac[5]);
+}
+
int netpoll_parse_options(struct netpoll *np, char *opt)
{
char *cur=opt, *delim;
cur = delim;
}
cur++;
- printk(KERN_INFO "%s: local port %d\n", np->name, np->local_port);
if (*cur != '/') {
if ((delim = strchr(cur, '/')) == NULL)
*delim = 0;
np->local_ip = ntohl(in_aton(cur));
cur = delim;
-
- printk(KERN_INFO "%s: local IP %d.%d.%d.%d\n",
- np->name, HIPQUAD(np->local_ip));
}
cur++;
}
cur++;
- printk(KERN_INFO "%s: interface %s\n", np->name, np->dev_name);
-
if (*cur != '@') {
/* dst port */
if ((delim = strchr(cur, '@')) == NULL)
cur = delim;
}
cur++;
- printk(KERN_INFO "%s: remote port %d\n", np->name, np->remote_port);
/* dst ip */
if ((delim = strchr(cur, '/')) == NULL)
np->remote_ip = ntohl(in_aton(cur));
cur = delim + 1;
- printk(KERN_INFO "%s: remote IP %d.%d.%d.%d\n",
- np->name, HIPQUAD(np->remote_ip));
-
if (*cur != 0) {
/* MAC address */
if ((delim = strchr(cur, ':')) == NULL)
np->remote_mac[5] = simple_strtol(cur, NULL, 16);
}
- printk(KERN_INFO "%s: remote ethernet address "
- "%02x:%02x:%02x:%02x:%02x:%02x\n",
- np->name,
- np->remote_mac[0],
- np->remote_mac[1],
- np->remote_mac[2],
- np->remote_mac[3],
- np->remote_mac[4],
- np->remote_mac[5]);
+ netpoll_print_options(np);
return 0;
npinfo->rx_flags = 0;
npinfo->rx_np = NULL;
- spin_lock_init(&npinfo->poll_lock);
- npinfo->poll_owner = -1;
spin_lock_init(&npinfo->rx_lock);
skb_queue_head_init(&npinfo->arp_tx);
spin_unlock_irqrestore(&npinfo->rx_lock, flags);
}
- np->dev->npinfo = NULL;
if (atomic_dec_and_test(&npinfo->refcnt)) {
skb_queue_purge(&npinfo->arp_tx);
skb_queue_purge(&npinfo->txq);
- cancel_delayed_work(&npinfo->tx_work);
- flush_scheduled_work();
+ cancel_rearming_delayed_work(&npinfo->tx_work);
/* clean after last, unfinished work */
if (!skb_queue_empty(&npinfo->txq)) {
kfree_skb(skb);
}
kfree(npinfo);
+ np->dev->npinfo = NULL;
}
}
EXPORT_SYMBOL(netpoll_set_trap);
EXPORT_SYMBOL(netpoll_trap);
+EXPORT_SYMBOL(netpoll_print_options);
EXPORT_SYMBOL(netpoll_parse_options);
EXPORT_SYMBOL(netpoll_setup);
EXPORT_SYMBOL(netpoll_cleanup);