X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fcore%2Fdev.c;h=d334446a8eaf8e4cfdd5953be2c03d9cbe1d0e98;hb=2a5f2e3e6cd1ce9fb3f8b186b6bc9aa1f1497a92;hp=aebd0860604089ac262dbc44832385e660ee6452;hpb=2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50;p=linux-2.6 diff --git a/net/core/dev.c b/net/core/dev.c index aebd086060..d334446a8e 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -162,7 +162,7 @@ struct net_dma { struct dma_client client; spinlock_t lock; cpumask_t channel_mask; - struct dma_chan *channels[NR_CPUS]; + struct dma_chan **channels; }; static enum dma_state_client @@ -216,7 +216,7 @@ static inline struct hlist_head *dev_index_hash(struct net *net, int ifindex) /* Device list insertion */ static int list_netdevice(struct net_device *dev) { - struct net *net = dev->nd_net; + struct net *net = dev_net(dev); ASSERT_RTNL(); @@ -852,8 +852,8 @@ int dev_alloc_name(struct net_device *dev, const char *name) struct net *net; int ret; - BUG_ON(!dev->nd_net); - net = dev->nd_net; + BUG_ON(!dev_net(dev)); + net = dev_net(dev); ret = __dev_alloc_name(net, name, buf); if (ret >= 0) strlcpy(dev->name, buf, IFNAMSIZ); @@ -877,9 +877,9 @@ int dev_change_name(struct net_device *dev, char *newname) struct net *net; ASSERT_RTNL(); - BUG_ON(!dev->nd_net); + BUG_ON(!dev_net(dev)); - net = dev->nd_net; + net = dev_net(dev); if (dev->flags & IFF_UP) return -EBUSY; @@ -1524,7 +1524,7 @@ static int dev_gso_segment(struct sk_buff *skb) if (!segs) return 0; - if (unlikely(IS_ERR(segs))) + if (IS_ERR(segs)) return PTR_ERR(segs); skb->next = segs; @@ -2444,7 +2444,7 @@ static struct netif_rx_stats *softnet_get_online(loff_t *pos) { struct netif_rx_stats *rc = NULL; - while (*pos < NR_CPUS) + while (*pos < nr_cpu_ids) if (cpu_online(*pos)) { rc = &per_cpu(netdev_rx_stat, *pos); break; @@ -2615,7 +2615,7 @@ static int ptype_seq_show(struct seq_file *seq, void *v) if (v == SEQ_START_TOKEN) seq_puts(seq, "Type Device Function\n"); - else if (pt->dev == NULL || pt->dev->nd_net == seq_file_net(seq)) { + else if (pt->dev == NULL || dev_net(pt->dev) == seq_file_net(seq)) { if (pt->type == htons(ETH_P_ALL)) seq_puts(seq, "ALL "); else @@ -3330,7 +3330,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd) return -EOPNOTSUPP; case SIOCADDMULTI: - if (!dev->set_multicast_list || + if ((!dev->set_multicast_list && !dev->set_rx_mode) || ifr->ifr_hwaddr.sa_family != AF_UNSPEC) return -EINVAL; if (!netif_device_present(dev)) @@ -3339,7 +3339,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd) dev->addr_len, 1); case SIOCDELMULTI: - if (!dev->set_multicast_list || + if ((!dev->set_multicast_list && !dev->set_rx_mode) || ifr->ifr_hwaddr.sa_family != AF_UNSPEC) return -EINVAL; if (!netif_device_present(dev)) @@ -3689,8 +3689,8 @@ int register_netdevice(struct net_device *dev) /* When net_device's are persistent, this will be fatal. */ BUG_ON(dev->reg_state != NETREG_UNINITIALIZED); - BUG_ON(!dev->nd_net); - net = dev->nd_net; + BUG_ON(!dev_net(dev)); + net = dev_net(dev); spin_lock_init(&dev->queue_lock); spin_lock_init(&dev->_xmit_lock); @@ -3776,6 +3776,7 @@ int register_netdevice(struct net_device *dev) } } + netdev_initialize_kobject(dev); ret = netdev_register_kobject(dev); if (ret) goto err_uninit; @@ -3996,11 +3997,15 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name, BUG_ON(strlen(name) >= sizeof(dev->name)); - /* ensure 32-byte alignment of both the device and private area */ - alloc_size = (sizeof(*dev) + NETDEV_ALIGN_CONST + - (sizeof(struct net_device_subqueue) * (queue_count - 1))) & - ~NETDEV_ALIGN_CONST; - alloc_size += sizeof_priv + NETDEV_ALIGN_CONST; + alloc_size = sizeof(struct net_device) + + sizeof(struct net_device_subqueue) * (queue_count - 1); + if (sizeof_priv) { + /* ensure 32-byte alignment of private area */ + alloc_size = (alloc_size + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST; + alloc_size += sizeof_priv; + } + /* ensure 32-byte alignment of whole construct */ + alloc_size += NETDEV_ALIGN_CONST; p = kzalloc(alloc_size, GFP_KERNEL); if (!p) { @@ -4011,7 +4016,7 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name, dev = (struct net_device *) (((long)p + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST); dev->padded = (char *)dev - (char *)p; - dev->nd_net = &init_net; + dev_net_set(dev, &init_net); if (sizeof_priv) { dev->priv = ((char *)dev + @@ -4042,6 +4047,8 @@ EXPORT_SYMBOL(alloc_netdev_mq); */ void free_netdev(struct net_device *dev) { + release_net(dev_net(dev)); + /* Compatibility with error handling in drivers */ if (dev->reg_state == NETREG_UNINITIALIZED) { kfree((char *)dev - dev->padded); @@ -4136,7 +4143,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char /* Get out if there is nothing todo */ err = 0; - if (dev->nd_net == net) + if (net_eq(dev_net(dev), net)) goto out; /* Pick the destination device name, and ensure @@ -4187,7 +4194,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char dev_addr_discard(dev); /* Actually switch the network namespace */ - dev->nd_net = net; + dev_net_set(dev, net); /* Assign the new device name */ if (destname != dev->name) @@ -4202,7 +4209,8 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char } /* Fixup kobjects */ - err = device_rename(&dev->dev, dev->name); + netdev_unregister_kobject(dev); + err = netdev_register_kobject(dev); WARN_ON(err); /* Add the device back in the hashes */ @@ -4318,7 +4326,7 @@ netdev_dma_event(struct dma_client *client, struct dma_chan *chan, spin_lock(&net_dma->lock); switch (state) { case DMA_RESOURCE_AVAILABLE: - for (i = 0; i < NR_CPUS; i++) + for (i = 0; i < nr_cpu_ids; i++) if (net_dma->channels[i] == chan) { found = 1; break; @@ -4333,7 +4341,7 @@ netdev_dma_event(struct dma_client *client, struct dma_chan *chan, } break; case DMA_RESOURCE_REMOVED: - for (i = 0; i < NR_CPUS; i++) + for (i = 0; i < nr_cpu_ids; i++) if (net_dma->channels[i] == chan) { found = 1; pos = i; @@ -4360,6 +4368,13 @@ netdev_dma_event(struct dma_client *client, struct dma_chan *chan, */ static int __init netdev_dma_register(void) { + net_dma.channels = kzalloc(nr_cpu_ids * sizeof(struct net_dma), + GFP_KERNEL); + if (unlikely(!net_dma.channels)) { + printk(KERN_NOTICE + "netdev_dma: no memory for net_dma.channels\n"); + return -ENOMEM; + } spin_lock_init(&net_dma.lock); dma_cap_set(DMA_MEMCPY, net_dma.client.cap_mask); dma_async_client_register(&net_dma.client);