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Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c36
-rw-r--r--net/core/netpoll.c8
-rw-r--r--net/core/pktgen.c10
-rw-r--r--net/core/skbuff.c3
4 files changed, 41 insertions, 16 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 6dce9d2..7ddf66d 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
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index a0efdd7..4b06d19 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -66,8 +66,9 @@ static void queue_process(struct work_struct *work)
local_irq_save(flags);
netif_tx_lock(dev);
- if (netif_queue_stopped(dev) ||
- dev->hard_start_xmit(skb, dev) != NETDEV_TX_OK) {
+ if ((netif_queue_stopped(dev) ||
+ netif_subqueue_stopped(dev, skb->queue_mapping)) ||
+ dev->hard_start_xmit(skb, dev) != NETDEV_TX_OK) {
skb_queue_head(&npinfo->txq, skb);
netif_tx_unlock(dev);
local_irq_restore(flags);
@@ -254,7 +255,8 @@ static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb)
for (tries = jiffies_to_usecs(1)/USEC_PER_POLL;
tries > 0; --tries) {
if (netif_tx_trylock(dev)) {
- if (!netif_queue_stopped(dev))
+ if (!netif_queue_stopped(dev) &&
+ !netif_subqueue_stopped(dev, skb->queue_mapping))
status = dev->hard_start_xmit(skb, dev);
netif_tx_unlock(dev);
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 9cd3a1c..dffe067 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -3139,7 +3139,9 @@ static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev)
}
}
- if (netif_queue_stopped(odev) || need_resched()) {
+ if ((netif_queue_stopped(odev) ||
+ netif_subqueue_stopped(odev, pkt_dev->skb->queue_mapping)) ||
+ need_resched()) {
idle_start = getCurUs();
if (!netif_running(odev)) {
@@ -3154,7 +3156,8 @@ static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev)
pkt_dev->idle_acc += getCurUs() - idle_start;
- if (netif_queue_stopped(odev)) {
+ if (netif_queue_stopped(odev) ||
+ netif_subqueue_stopped(odev, pkt_dev->skb->queue_mapping)) {
pkt_dev->next_tx_us = getCurUs(); /* TODO */
pkt_dev->next_tx_ns = 0;
goto out; /* Try the next interface */
@@ -3181,7 +3184,8 @@ static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev)
}
netif_tx_lock_bh(odev);
- if (!netif_queue_stopped(odev)) {
+ if (!netif_queue_stopped(odev) &&
+ !netif_subqueue_stopped(odev, pkt_dev->skb->queue_mapping)) {
atomic_inc(&(pkt_dev->skb->users));
retry_now:
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index c989c3a..6a41b96 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -419,6 +419,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
n->nohdr = 0;
C(pkt_type);
C(ip_summed);
+ skb_copy_queue_mapping(n, skb);
C(priority);
#if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE)
C(ipvs_property);
@@ -460,6 +461,7 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
#endif
new->sk = NULL;
new->dev = old->dev;
+ skb_copy_queue_mapping(new, old);
new->priority = old->priority;
new->protocol = old->protocol;
new->dst = dst_clone(old->dst);
@@ -1932,6 +1934,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
tail = nskb;
nskb->dev = skb->dev;
+ skb_copy_queue_mapping(nskb, skb);
nskb->priority = skb->priority;
nskb->protocol = skb->protocol;
nskb->dst = dst_clone(skb->dst);
generated by cgit v0.10.2 at 2024-10-23 00:59:23 (GMT)