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| author |   David Miller <davem@davemloft.net> | 2018-06-24 14:14:02 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-06-26 11:33:04 +0900 |
| commit | 07d78363dcffd9cb1bf6f06a6cac0e0847f3c1de (patch) | |
| tree | 641f6811f085e35b7f876685e0dbc506defce983 /include/linux | |
| parent | net: Convert GRO SKB handling to list_head. (diff) | |
| download | linux-dev-07d78363dcffd9cb1bf6f06a6cac0e0847f3c1de.tar.xz linux-dev-07d78363dcffd9cb1bf6f06a6cac0e0847f3c1de.zip | |
net: Convert NAPI gro list into a small hash table.
Improve the performance of GRO receive by splitting flows into
multiple hash chains.
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netdevice.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f176d9873910..c6b377a15869 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -305,6 +305,7 @@ int __init netdev_boot_setup(char *str); /* * Structure for NAPI scheduling similar to tasklet but with weighting */ +#define GRO_HASH_BUCKETS 8 struct napi_struct { /* The poll_list must only be managed by the entity which * changes the state of the NAPI_STATE_SCHED bit. This means @@ -322,7 +323,7 @@ struct napi_struct { int poll_owner; #endif struct net_device *dev; - struct list_head gro_list; + struct list_head gro_hash[GRO_HASH_BUCKETS]; struct sk_buff *skb; struct hrtimer timer; struct list_head dev_list; |