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netpoll: allow execution of multiple rx_hooks per interface

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Signed-off-by: Daniel Borkmann <danborkmann@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann
2010-01-12 14:27:30 +00:00
committed by David S. Miller
parent e1d5a01072
commit 508e14b4a4
2 changed files with 116 additions and 68 deletions
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11
include/linux/netpoll.h
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@@ -21,15 +21,20 @@ struct netpoll {
__be32 local_ip, remote_ip;
u16 local_port, remote_port;
u8 remote_mac[ETH_ALEN];
struct list_head rx; /* rx_np list element */
};
struct netpoll_info {
atomic_t refcnt;
int rx_flags;
spinlock_t rx_lock;
struct netpoll *rx_np; /* netpoll that registered an rx_hook */
struct list_head rx_np; /* netpolls that registered an rx_hook */
struct sk_buff_head arp_tx; /* list of arp requests to reply to */
struct sk_buff_head txq;
struct delayed_work tx_work;
};
@@ -51,7 +56,7 @@ static inline int netpoll_rx(struct sk_buff *skb)
unsigned long flags;
int ret = 0;
if (!npinfo || (!npinfo->rx_np && !npinfo->rx_flags))
if (!npinfo || (list_empty(&npinfo->rx_np) && !npinfo->rx_flags))
return 0;
spin_lock_irqsave(&npinfo->rx_lock, flags);
@@ -67,7 +72,7 @@ static inline int netpoll_rx_on(struct sk_buff *skb)
{
struct netpoll_info *npinfo = skb->dev->npinfo;
return npinfo && (npinfo->rx_np || npinfo->rx_flags);
return npinfo && (!list_empty(&npinfo->rx_np) || npinfo->rx_flags);
}
static inline int netpoll_receive_skb(struct sk_buff *skb)