diff options
| author | Jesse Gross <jesse@nicira.com> | 2011-01-09 06:23:32 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-01-09 23:35:34 -0800 |
| commit | fc741216db156994c554ac31c1151fe0e00d8f0e (patch) | |
| tree | 692c6278f1c20e4452620adee1ea3cd05d878819 | |
| parent | f01a5236bd4b140198fbcc550f085e8361fd73fa (diff) | |
net offloading: Pass features into netif_needs_gso().
Now that there is a single function that can compute the device
features relevant to a packet, we don't want to run it for each
offload. This converts netif_needs_gso() to take the features
of the device, rather than computing them itself.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/xen-netfront.c | 2 | ||||
| -rw-r--r-- | include/linux/netdevice.h | 12 | ||||
| -rw-r--r-- | net/core/dev.c | 8 |
3 files changed, 10 insertions, 12 deletions
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index cdbeec9f83e..546de574982 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -488,7 +488,7 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev) if (unlikely(!netif_carrier_ok(dev) || (frags > 1 && !xennet_can_sg(dev)) || - netif_needs_gso(dev, skb))) { + netif_needs_gso(skb, netif_skb_features(skb)))) { spin_unlock_irq(&np->tx_lock); goto drop; } diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index d4dac09a5ad..de2bfe6da35 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2317,16 +2317,10 @@ static inline int skb_gso_ok(struct sk_buff *skb, int features) (!skb_has_frag_list(skb) || (features & NETIF_F_FRAGLIST)); } -static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb) +static inline int netif_needs_gso(struct sk_buff *skb, int features) { - if (skb_is_gso(skb)) { - int features = netif_skb_features(skb); - - return (!skb_gso_ok(skb, features) || - unlikely(skb->ip_summed != CHECKSUM_PARTIAL)); - } - - return 0; + return skb_is_gso(skb) && (!skb_gso_ok(skb, features) || + unlikely(skb->ip_summed != CHECKSUM_PARTIAL)); } static inline void netif_set_gso_max_size(struct net_device *dev, diff --git a/net/core/dev.c b/net/core/dev.c index a51dfd7b56f..1444ed3861a 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2086,6 +2086,8 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, int rc = NETDEV_TX_OK; if (likely(!skb->next)) { + int features; + /* * If device doesnt need skb->dst, release it right now while * its hot in this cpu cache @@ -2098,8 +2100,10 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, skb_orphan_try(skb); + features = netif_skb_features(skb); + if (vlan_tx_tag_present(skb) && - !(dev->features & NETIF_F_HW_VLAN_TX)) { + !(features & NETIF_F_HW_VLAN_TX)) { skb = __vlan_put_tag(skb, vlan_tx_tag_get(skb)); if (unlikely(!skb)) goto out; @@ -2107,7 +2111,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, skb->vlan_tci = 0; } - if (netif_needs_gso(dev, skb)) { + if (netif_needs_gso(skb, features)) { if (unlikely(dev_gso_segment(skb))) goto out_kfree_skb; if (skb->next) |