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authorStephen Hemminger <shemminger@osdl.org>2005-06-23 20:12:48 -0700
committerDavid S. Miller <davem@davemloft.net>2005-06-23 20:12:48 -0700
commit31aa02c53c84658f6694f319f09e232ede27be5a (patch)
tree3af5cce958dcce744548b312a043aa4a0b769a50 /include
parent34008d8c631d067caffa136313260525f3ae48a2 (diff)
[NET]: Eliminate netif_rx massive packet drops.
Eliminate the throttling behaviour when the netif receive queue fills because it behaves badly when using high speed networks under load. The throttling cause multiple packet drops that cause TCP to go into slow start mode. The same effective patch has been part of BIC TCP and H-TCP as well as part of Web100. The existing code drops 100's of packets when the queue fills; this changes it to individual packet drop-tail. Signed-off-by: Stephen Hemmminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/netdevice.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 718ad579c65..3a0ed7f9e80 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -164,7 +164,6 @@ struct netif_rx_stats
unsigned total;
unsigned dropped;
unsigned time_squeeze;
- unsigned throttled;
unsigned cpu_collision;
};
@@ -557,10 +556,9 @@ static inline int unregister_gifconf(unsigned int family)
struct softnet_data
{
- int throttle;
+ struct net_device *output_queue;
struct sk_buff_head input_pkt_queue;
struct list_head poll_list;
- struct net_device *output_queue;
struct sk_buff *completion_queue;
struct net_device backlog_dev; /* Sorry. 8) */