diff options
| author | Juhee Kang <claudiajkang@gmail.com> | 2022-02-05 15:40:38 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-02-06 10:55:52 +0000 |
| commit | 4acc45db711586dadb98e681ccb93f29372907a2 (patch) | |
| tree | f69f105c0d756fd7caacec85ef42c2d9463843bf /net/hsr/hsr_device.c | |
| parent | 5a8fb33e530512ee67a11b30f3451a4f030f4b01 (diff) | |
net: hsr: use hlist_head instead of list_head for mac addresses
Currently, HSR manages mac addresses of known HSR nodes by using list_head.
It takes a lot of time when there are a lot of registered nodes due to
finding specific mac address nodes by using linear search. We can be
reducing the time by using hlist. Thus, this patch moves list_head to
hlist_head for mac addresses and this allows for further improvement of
network performance.
Condition: registered 10,000 known HSR nodes
Before:
# iperf3 -c 192.168.10.1 -i 1 -t 10
Connecting to host 192.168.10.1, port 5201
[ 5] local 192.168.10.2 port 59442 connected to 192.168.10.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.49 sec 3.75 MBytes 21.1 Mbits/sec 0 158 KBytes
[ 5] 1.49-2.05 sec 1.25 MBytes 18.7 Mbits/sec 0 166 KBytes
[ 5] 2.05-3.06 sec 2.44 MBytes 20.3 Mbits/sec 56 16.9 KBytes
[ 5] 3.06-4.08 sec 1.43 MBytes 11.7 Mbits/sec 11 38.0 KBytes
[ 5] 4.08-5.00 sec 951 KBytes 8.49 Mbits/sec 0 56.3 KBytes
After:
# iperf3 -c 192.168.10.1 -i 1 -t 10
Connecting to host 192.168.10.1, port 5201
[ 5] local 192.168.10.2 port 36460 connected to 192.168.10.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 7.39 MBytes 62.0 Mbits/sec 3 130 KBytes
[ 5] 1.00-2.00 sec 5.06 MBytes 42.4 Mbits/sec 16 113 KBytes
[ 5] 2.00-3.00 sec 8.58 MBytes 72.0 Mbits/sec 42 94.3 KBytes
[ 5] 3.00-4.00 sec 7.44 MBytes 62.4 Mbits/sec 2 131 KBytes
[ 5] 4.00-5.07 sec 8.13 MBytes 63.5 Mbits/sec 38 92.9 KBytes
Signed-off-by: Juhee Kang <claudiajkang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/hsr/hsr_device.c')
| -rw-r--r-- | net/hsr/hsr_device.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index e57fdad9ef94..7f250216433d 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -485,12 +485,16 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2], { bool unregister = false; struct hsr_priv *hsr; - int res; + int res, i; hsr = netdev_priv(hsr_dev); INIT_LIST_HEAD(&hsr->ports); - INIT_LIST_HEAD(&hsr->node_db); - INIT_LIST_HEAD(&hsr->self_node_db); + INIT_HLIST_HEAD(&hsr->self_node_db); + hsr->hash_buckets = HSR_HSIZE; + get_random_bytes(&hsr->hash_seed, sizeof(hsr->hash_seed)); + for (i = 0; i < hsr->hash_buckets; i++) + INIT_HLIST_HEAD(&hsr->node_db[i]); + spin_lock_init(&hsr->list_lock); eth_hw_addr_set(hsr_dev, slave[0]->dev_addr); |