diff options
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 6dce9d2d46f2..7ddf66d0ad5e 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1429,7 +1429,9 @@ gso: skb->next = nskb; return rc; } - if (unlikely(netif_queue_stopped(dev) && skb->next)) + if (unlikely((netif_queue_stopped(dev) || + netif_subqueue_stopped(dev, skb->queue_mapping)) && + skb->next)) return NETDEV_TX_BUSY; } while (skb->next); @@ -1547,6 +1549,8 @@ gso: spin_lock(&dev->queue_lock); q = dev->qdisc; if (q->enqueue) { + /* reset queue_mapping to zero */ + skb->queue_mapping = 0; rc = q->enqueue(skb, q); qdisc_run(dev); spin_unlock(&dev->queue_lock); @@ -1576,7 +1580,8 @@ gso: HARD_TX_LOCK(dev, cpu); - if (!netif_queue_stopped(dev)) { + if (!netif_queue_stopped(dev) && + !netif_subqueue_stopped(dev, skb->queue_mapping)) { rc = 0; if (!dev_hard_start_xmit(skb, dev)) { HARD_TX_UNLOCK(dev); @@ -3539,16 +3544,18 @@ static struct net_device_stats *internal_stats(struct net_device *dev) } /** - * alloc_netdev - allocate network device + * alloc_netdev_mq - allocate network device * @sizeof_priv: size of private data to allocate space for * @name: device name format string * @setup: callback to initialize device + * @queue_count: the number of subqueues to allocate * * Allocates a struct net_device with private data area for driver use - * and performs basic initialization. + * and performs basic initialization. Also allocates subquue structs + * for each queue on the device at the end of the netdevice. */ -struct net_device *alloc_netdev(int sizeof_priv, const char *name, - void (*setup)(struct net_device *)) +struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name, + void (*setup)(struct net_device *), unsigned int queue_count) { void *p; struct net_device *dev; @@ -3557,7 +3564,9 @@ struct net_device *alloc_netdev(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) & ~NETDEV_ALIGN_CONST; + alloc_size = (sizeof(*dev) + NETDEV_ALIGN_CONST + + (sizeof(struct net_device_subqueue) * queue_count)) & + ~NETDEV_ALIGN_CONST; alloc_size += sizeof_priv + NETDEV_ALIGN_CONST; p = kzalloc(alloc_size, GFP_KERNEL); @@ -3570,15 +3579,22 @@ struct net_device *alloc_netdev(int sizeof_priv, const char *name, (((long)p + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST); dev->padded = (char *)dev - (char *)p; - if (sizeof_priv) - dev->priv = netdev_priv(dev); + if (sizeof_priv) { + dev->priv = ((char *)dev + + ((sizeof(struct net_device) + + (sizeof(struct net_device_subqueue) * + queue_count) + NETDEV_ALIGN_CONST) + & ~NETDEV_ALIGN_CONST)); + } + + dev->egress_subqueue_count = queue_count; dev->get_stats = internal_stats; setup(dev); strcpy(dev->name, name); return dev; } -EXPORT_SYMBOL(alloc_netdev); +EXPORT_SYMBOL(alloc_netdev_mq); /** * free_netdev - free network device |