X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fnetpoll.h;h=a0525a1f4715d7cce2e1e883070b75a655b12359;hb=934d15854d04e8ca2495d8f5698164df990d5d66;hp=1efe60c5c00c3dd5c57924707206afcf49ef2dc5;hpb=55b4d6a52195a8f277ffddf755ddaff359878f41;p=linux-2.6-omap-h63xx.git diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h index 1efe60c5c00..a0525a1f471 100644 --- a/include/linux/netpoll.h +++ b/include/linux/netpoll.h @@ -12,37 +12,36 @@ #include #include -struct netpoll; - struct netpoll { struct net_device *dev; - char dev_name[16], *name; + char dev_name[IFNAMSIZ]; + const char *name; void (*rx_hook)(struct netpoll *, int, char *, int); - void (*drop)(struct sk_buff *skb); + u32 local_ip, remote_ip; u16 local_port, remote_port; - unsigned char local_mac[6], remote_mac[6]; + u8 remote_mac[ETH_ALEN]; }; struct netpoll_info { - spinlock_t poll_lock; - int poll_owner; - int tries; - int rx_flags; + atomic_t refcnt; spinlock_t rx_lock; struct netpoll *rx_np; /* netpoll 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; }; void netpoll_poll(struct netpoll *np); void netpoll_send_udp(struct netpoll *np, const char *msg, int len); +void netpoll_print_options(struct netpoll *np); int netpoll_parse_options(struct netpoll *np, char *opt); int netpoll_setup(struct netpoll *np); int netpoll_trap(void); void netpoll_set_trap(int trap); void netpoll_cleanup(struct netpoll *np); int __netpoll_rx(struct sk_buff *skb); -void netpoll_queue(struct sk_buff *skb); + #ifdef CONFIG_NETPOLL static inline int netpoll_rx(struct sk_buff *skb) @@ -51,44 +50,73 @@ 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 || !npinfo->rx_np) return 0; spin_lock_irqsave(&npinfo->rx_lock, flags); - /* check rx_flags again with the lock held */ - if (npinfo->rx_flags && __netpoll_rx(skb)) + /* check rx_np again with the lock held */ + if (npinfo->rx_np && __netpoll_rx(skb)) ret = 1; spin_unlock_irqrestore(&npinfo->rx_lock, flags); return ret; } -static inline void *netpoll_poll_lock(struct net_device *dev) +static inline int netpoll_receive_skb(struct sk_buff *skb) +{ + if (!list_empty(&skb->dev->napi_list)) + return netpoll_rx(skb); + return 0; +} + +static inline void *netpoll_poll_lock(struct napi_struct *napi) { + struct net_device *dev = napi->dev; + rcu_read_lock(); /* deal with race on ->npinfo */ - if (dev->npinfo) { - spin_lock(&dev->npinfo->poll_lock); - dev->npinfo->poll_owner = smp_processor_id(); - return dev->npinfo; + if (dev && dev->npinfo) { + spin_lock(&napi->poll_lock); + napi->poll_owner = smp_processor_id(); + return napi; } return NULL; } static inline void netpoll_poll_unlock(void *have) { - struct netpoll_info *npi = have; + struct napi_struct *napi = have; - if (npi) { - npi->poll_owner = -1; - spin_unlock(&npi->poll_lock); + if (napi) { + napi->poll_owner = -1; + spin_unlock(&napi->poll_lock); } rcu_read_unlock(); } +static inline void netpoll_netdev_init(struct net_device *dev) +{ + INIT_LIST_HEAD(&dev->napi_list); +} + #else -#define netpoll_rx(a) 0 -#define netpoll_poll_lock(a) NULL -#define netpoll_poll_unlock(a) +static inline int netpoll_rx(struct sk_buff *skb) +{ + return 0; +} +static inline int netpoll_receive_skb(struct sk_buff *skb) +{ + return 0; +} +static inline void *netpoll_poll_lock(struct napi_struct *napi) +{ + return NULL; +} +static inline void netpoll_poll_unlock(void *have) +{ +} +static inline void netpoll_netdev_init(struct net_device *dev) +{ +} #endif #endif