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Date: Sun, 31 May 2020 11:01:52 +0300 From: Oz Shlomo <ozsh@...lanox.com> To: wenxu@...oud.cn, paulb@...lanox.com, saeedm@...lanox.com Cc: netdev@...r.kernel.org Subject: Re: [PATCH net-next 2/2] net/mlx5e: add ct_metadata.nat support in ct offload Hi Wenxu, On 5/28/2020 10:15 AM, wenxu@...oud.cn wrote: > From: wenxu <wenxu@...oud.cn> > > In the ct offload all the conntrack entry offload rules > will be add to both ct ft and ct_nat ft twice. > It is not makesense. The ct_metadat.nat will tell driver Adding the connection to both tables is required because the user may perform a CT action without NAT even though a NAT entry was allocated when the connection was committed. > the rule should add to ct or ct_nat flow table > > Signed-off-by: wenxu <wenxu@...oud.cn> > --- > drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c | 34 ++++++++-------------- > 1 file changed, 12 insertions(+), 22 deletions(-) > > diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c > index 995b2ef..02ecd24 100644 > --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c > +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c > @@ -88,7 +88,7 @@ struct mlx5_ct_entry { > struct mlx5_fc *counter; > unsigned long cookie; > unsigned long restore_cookie; > - struct mlx5_ct_zone_rule zone_rules[2]; > + struct mlx5_ct_zone_rule zone_rule; > }; > > static const struct rhashtable_params cts_ht_params = { > @@ -238,10 +238,9 @@ struct mlx5_ct_entry { > > static void > mlx5_tc_ct_entry_del_rule(struct mlx5_tc_ct_priv *ct_priv, > - struct mlx5_ct_entry *entry, > - bool nat) > + struct mlx5_ct_entry *entry) > { > - struct mlx5_ct_zone_rule *zone_rule = &entry->zone_rules[nat]; > + struct mlx5_ct_zone_rule *zone_rule = &entry->zone_rule; > struct mlx5_esw_flow_attr *attr = &zone_rule->attr; > struct mlx5_eswitch *esw = ct_priv->esw; > > @@ -256,8 +255,7 @@ struct mlx5_ct_entry { > mlx5_tc_ct_entry_del_rules(struct mlx5_tc_ct_priv *ct_priv, > struct mlx5_ct_entry *entry) > { > - mlx5_tc_ct_entry_del_rule(ct_priv, entry, true); > - mlx5_tc_ct_entry_del_rule(ct_priv, entry, false); > + mlx5_tc_ct_entry_del_rule(ct_priv, entry); > > mlx5_fc_destroy(ct_priv->esw->dev, entry->counter); > } > @@ -493,7 +491,7 @@ struct mlx5_ct_entry { > struct mlx5_ct_entry *entry, > bool nat) > { > - struct mlx5_ct_zone_rule *zone_rule = &entry->zone_rules[nat]; > + struct mlx5_ct_zone_rule *zone_rule = &entry->zone_rule; > struct mlx5_esw_flow_attr *attr = &zone_rule->attr; > struct mlx5_eswitch *esw = ct_priv->esw; > struct mlx5_flow_spec *spec = NULL; > @@ -562,7 +560,8 @@ struct mlx5_ct_entry { > static int > mlx5_tc_ct_entry_add_rules(struct mlx5_tc_ct_priv *ct_priv, > struct flow_rule *flow_rule, > - struct mlx5_ct_entry *entry) > + struct mlx5_ct_entry *entry, > + bool nat) > { > struct mlx5_eswitch *esw = ct_priv->esw; > int err; > @@ -574,20 +573,10 @@ struct mlx5_ct_entry { > return err; > } > > - err = mlx5_tc_ct_entry_add_rule(ct_priv, flow_rule, entry, false); > + err = mlx5_tc_ct_entry_add_rule(ct_priv, flow_rule, entry, nat); > if (err) > - goto err_orig; > - > - err = mlx5_tc_ct_entry_add_rule(ct_priv, flow_rule, entry, true); > - if (err) > - goto err_nat; > - > - return 0; > + mlx5_fc_destroy(esw->dev, entry->counter); > > -err_nat: > - mlx5_tc_ct_entry_del_rule(ct_priv, entry, false); > -err_orig: > - mlx5_fc_destroy(esw->dev, entry->counter); > return err; > } > > @@ -619,7 +608,8 @@ struct mlx5_ct_entry { > entry->cookie = flow->cookie; > entry->restore_cookie = meta_action->ct_metadata.cookie; > > - err = mlx5_tc_ct_entry_add_rules(ct_priv, flow_rule, entry); > + err = mlx5_tc_ct_entry_add_rules(ct_priv, flow_rule, entry, > + meta_action->ct_metadata.nat); > if (err) > goto err_rules; > > @@ -1620,7 +1610,7 @@ struct mlx5_flow_handle * > return false; > > entry = container_of(zone_rule, struct mlx5_ct_entry, > - zone_rules[zone_rule->nat]); > + zone_rule); > tcf_ct_flow_table_restore_skb(skb, entry->restore_cookie); > > return true; >
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