diff options
| author |   Li RongQing <lirongqing@baidu.com> | 2018-07-05 14:34:32 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-07-05 19:20:16 +0900 |
| commit | 6312fe77751f57d4fa2b28abeef84c6a95c28136 (patch) | |
| tree | bc8b1e2befbb98f1015785646f48e5f4172caebe /include | |
| parent | r8169: fix runtime suspend (diff) | |
| download | linux-dev-6312fe77751f57d4fa2b28abeef84c6a95c28136.tar.xz linux-dev-6312fe77751f57d4fa2b28abeef84c6a95c28136.zip | |
net: limit each hash list length to MAX_GRO_SKBS
After commit 07d78363dcff ("net: Convert NAPI gro list into a small hash
table.")' there is 8 hash buckets, which allows more flows to be held for
merging. but MAX_GRO_SKBS, the total held skb for merging, is 8 skb still,
limit the hash table performance.
keep MAX_GRO_SKBS as 8 skb, but limit each hash list length to 8 skb, not
the total 8 skb
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netdevice.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f06ee8f91e74..b683971e500d 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -302,6 +302,11 @@ struct netdev_boot_setup { int __init netdev_boot_setup(char *str); +struct gro_list { + struct list_head list; + int count; +}; + /* * Structure for NAPI scheduling similar to tasklet but with weighting */ @@ -323,7 +328,7 @@ struct napi_struct { int poll_owner; #endif struct net_device *dev; - struct list_head gro_hash[GRO_HASH_BUCKETS]; + struct gro_list gro_hash[GRO_HASH_BUCKETS]; struct sk_buff *skb; struct hrtimer timer; struct list_head dev_list; |