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| author | Andy Zhou <azhou@nicira.com> | 2013-10-22 21:42:46 +0400 |
|---|---|---|
| committer | Jesse Gross <jesse@nicira.com> | 2013-10-22 21:42:46 +0400 |
| commit | 1bd7116f1cb833c998cddb6b188df463342069d8 (patch) | |
| tree | 4afeff18229a412b2ee5b72e3b0d10fc997ce1b6 /net/openvswitch/flow_table.c | |
| parent | 618ed0c805b64c820279f50732110ab873221c3b (diff) | |
| download | linux-1bd7116f1cb833c998cddb6b188df463342069d8.tar.xz | |
openvswitch: collect mega flow mask stats
Collect mega flow mask stats. ovs-dpctl show command can be used to
display them for debugging and performance tuning.
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Diffstat (limited to 'net/openvswitch/flow_table.c')
| -rw-r--r-- | net/openvswitch/flow_table.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c index 036e019f8c3c..536b4d2a42e2 100644 --- a/net/openvswitch/flow_table.c +++ b/net/openvswitch/flow_table.c @@ -430,13 +430,16 @@ static struct sw_flow *masked_flow_lookup(struct table_instance *ti, } struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *tbl, - const struct sw_flow_key *key) + const struct sw_flow_key *key, + u32 *n_mask_hit) { struct table_instance *ti = rcu_dereference(tbl->ti); struct sw_flow_mask *mask; struct sw_flow *flow; + *n_mask_hit = 0; list_for_each_entry_rcu(mask, &tbl->mask_list, list) { + (*n_mask_hit)++; flow = masked_flow_lookup(ti, key, mask); if (flow) /* Found */ return flow; @@ -444,6 +447,17 @@ struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *tbl, return NULL; } +int ovs_flow_tbl_num_masks(const struct flow_table *table) +{ + struct sw_flow_mask *mask; + int num = 0; + + list_for_each_entry(mask, &table->mask_list, list) + num++; + + return num; +} + static struct table_instance *table_instance_expand(struct table_instance *ti) { return table_instance_rehash(ti, ti->n_buckets * 2); |