diff options
author | Takashi Iwai <tiwai@suse.de> | 2010-08-18 15:17:30 +0200 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2010-08-18 15:17:30 +0200 |
commit | 6ab561c8aab2e4af535f09adbc6253f958536848 (patch) | |
tree | 37846adb4ea106485720d113e252d71d615c23ed /net/atm | |
parent | 4f4e8f69895c8696a4bcc751817d4b186023ac44 (diff) | |
parent | cbaa9f60d5d5c3af10f94e0d49789d5b82341a4a (diff) |
Merge branch 'topic/isa' into topic/misc
Diffstat (limited to 'net/atm')
-rw-r--r-- | net/atm/br2684.c | 66 | ||||
-rw-r--r-- | net/atm/clip.c | 2 | ||||
-rw-r--r-- | net/atm/common.c | 30 | ||||
-rw-r--r-- | net/atm/pppoatm.c | 2 |
4 files changed, 96 insertions, 4 deletions
diff --git a/net/atm/br2684.c b/net/atm/br2684.c index 6719af6a59f..651babdfab3 100644 --- a/net/atm/br2684.c +++ b/net/atm/br2684.c @@ -139,6 +139,43 @@ static struct net_device *br2684_find_dev(const struct br2684_if_spec *s) return NULL; } +static int atm_dev_event(struct notifier_block *this, unsigned long event, + void *arg) +{ + struct atm_dev *atm_dev = arg; + struct list_head *lh; + struct net_device *net_dev; + struct br2684_vcc *brvcc; + struct atm_vcc *atm_vcc; + unsigned long flags; + + pr_debug("event=%ld dev=%p\n", event, atm_dev); + + read_lock_irqsave(&devs_lock, flags); + list_for_each(lh, &br2684_devs) { + net_dev = list_entry_brdev(lh); + + list_for_each_entry(brvcc, &BRPRIV(net_dev)->brvccs, brvccs) { + atm_vcc = brvcc->atmvcc; + if (atm_vcc && brvcc->atmvcc->dev == atm_dev) { + + if (atm_vcc->dev->signal == ATM_PHY_SIG_LOST) + netif_carrier_off(net_dev); + else + netif_carrier_on(net_dev); + + } + } + } + read_unlock_irqrestore(&devs_lock, flags); + + return NOTIFY_DONE; +} + +static struct notifier_block atm_dev_notifier = { + .notifier_call = atm_dev_event, +}; + /* chained vcc->pop function. Check if we should wake the netif_queue */ static void br2684_pop(struct atm_vcc *vcc, struct sk_buff *skb) { @@ -362,6 +399,12 @@ static void br2684_push(struct atm_vcc *atmvcc, struct sk_buff *skb) unregister_netdev(net_dev); free_netdev(net_dev); } + read_lock_irq(&devs_lock); + if (list_empty(&br2684_devs)) { + /* last br2684 device */ + unregister_atmdevice_notifier(&atm_dev_notifier); + } + read_unlock_irq(&devs_lock); return; } @@ -530,6 +573,13 @@ static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg) br2684_push(atmvcc, skb); } + + /* initialize netdev carrier state */ + if (atmvcc->dev->signal == ATM_PHY_SIG_LOST) + netif_carrier_off(net_dev); + else + netif_carrier_on(net_dev); + __module_get(THIS_MODULE); return 0; @@ -620,9 +670,16 @@ static int br2684_create(void __user *arg) } write_lock_irq(&devs_lock); + brdev->payload = payload; - brdev->number = list_empty(&br2684_devs) ? 1 : - BRPRIV(list_entry_brdev(br2684_devs.prev))->number + 1; + + if (list_empty(&br2684_devs)) { + /* 1st br2684 device */ + register_atmdevice_notifier(&atm_dev_notifier); + brdev->number = 1; + } else + brdev->number = BRPRIV(list_entry_brdev(br2684_devs.prev))->number + 1; + list_add_tail(&brdev->br2684_devs, &br2684_devs); write_unlock_irq(&devs_lock); return 0; @@ -772,6 +829,11 @@ static void __exit br2684_exit(void) remove_proc_entry("br2684", atm_proc_root); #endif + + /* if not already empty */ + if (!list_empty(&br2684_devs)) + unregister_atmdevice_notifier(&atm_dev_notifier); + while (!list_empty(&br2684_devs)) { net_dev = list_entry_brdev(br2684_devs.next); brdev = BRPRIV(net_dev); diff --git a/net/atm/clip.c b/net/atm/clip.c index 313aba11316..95fdd118506 100644 --- a/net/atm/clip.c +++ b/net/atm/clip.c @@ -522,7 +522,7 @@ static int clip_setentry(struct atm_vcc *vcc, __be32 ip) error = ip_route_output_key(&init_net, &rt, &fl); if (error) return error; - neigh = __neigh_lookup(&clip_tbl, &ip, rt->u.dst.dev, 1); + neigh = __neigh_lookup(&clip_tbl, &ip, rt->dst.dev, 1); ip_rt_put(rt); if (!neigh) return -ENOMEM; diff --git a/net/atm/common.c b/net/atm/common.c index b43feb1a399..940404a73b3 100644 --- a/net/atm/common.c +++ b/net/atm/common.c @@ -37,6 +37,8 @@ EXPORT_SYMBOL(vcc_hash); DEFINE_RWLOCK(vcc_sklist_lock); EXPORT_SYMBOL(vcc_sklist_lock); +static ATOMIC_NOTIFIER_HEAD(atm_dev_notify_chain); + static void __vcc_insert_socket(struct sock *sk) { struct atm_vcc *vcc = atm_sk(sk); @@ -212,6 +214,22 @@ void vcc_release_async(struct atm_vcc *vcc, int reply) } EXPORT_SYMBOL(vcc_release_async); +void atm_dev_signal_change(struct atm_dev *dev, char signal) +{ + pr_debug("%s signal=%d dev=%p number=%d dev->signal=%d\n", + __func__, signal, dev, dev->number, dev->signal); + + /* atm driver sending invalid signal */ + WARN_ON(signal < ATM_PHY_SIG_LOST || signal > ATM_PHY_SIG_FOUND); + + if (dev->signal == signal) + return; /* no change */ + + dev->signal = signal; + + atomic_notifier_call_chain(&atm_dev_notify_chain, signal, dev); +} +EXPORT_SYMBOL(atm_dev_signal_change); void atm_dev_release_vccs(struct atm_dev *dev) { @@ -781,6 +799,18 @@ int vcc_getsockopt(struct socket *sock, int level, int optname, return vcc->dev->ops->getsockopt(vcc, level, optname, optval, len); } +int register_atmdevice_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_register(&atm_dev_notify_chain, nb); +} +EXPORT_SYMBOL_GPL(register_atmdevice_notifier); + +void unregister_atmdevice_notifier(struct notifier_block *nb) +{ + atomic_notifier_chain_unregister(&atm_dev_notify_chain, nb); +} +EXPORT_SYMBOL_GPL(unregister_atmdevice_notifier); + static int __init atm_init(void) { int error; diff --git a/net/atm/pppoatm.c b/net/atm/pppoatm.c index e49bb6d948a..e9aced0ec56 100644 --- a/net/atm/pppoatm.c +++ b/net/atm/pppoatm.c @@ -260,7 +260,7 @@ static int pppoatm_devppp_ioctl(struct ppp_channel *chan, unsigned int cmd, return -ENOTTY; } -static /*const*/ struct ppp_channel_ops pppoatm_ops = { +static const struct ppp_channel_ops pppoatm_ops = { .start_xmit = pppoatm_send, .ioctl = pppoatm_devppp_ioctl, }; |