UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

net/mlx5e: TC, CT: Offload ct clear only once 

Non-clear CT action causes a flow rule split, while CT clear action
doesn't and is just a header-rewrite to the current flow rule.
But ct offload is done in post_parse and is per ct action instance,
so ct clear offload is parsed multiple times, while its deleted once.

Fix this by post_parsing the ct action only once per flow attribute
(which is per flow rule) by using a offloaded ct_attr flag.

Fixes: 08fe94ec5f ("net/mlx5e: TC, Remove special handling of CT action")
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Yevgeny Kliteynik 2023-06-04 12:45:38 +03:00 committed by Saeed Mahameed
parent 65e64640e9
commit f7a485115a
2 changed files with 12 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
View File

@ -1545,7 +1545,8 @@ mlx5_tc_ct_parse_action(struct mlx5_tc_ct_priv *priv,
attr->ct_attr.ct_action |= act->ct.action; /* So we can have clear + ct */
attr->ct_attr.zone = act->ct.zone;
attr->ct_attr.nf_ft = act->ct.flow_table;
if (!(act->ct.action & TCA_CT_ACT_CLEAR))
attr->ct_attr.nf_ft = act->ct.flow_table;
attr->ct_attr.act_miss_cookie = act->miss_cookie;
return 0;
@ -1990,6 +1991,9 @@ mlx5_tc_ct_flow_offload(struct mlx5_tc_ct_priv *priv, struct mlx5_flow_attr *att
if (!priv)
return -EOPNOTSUPP;
if (attr->ct_attr.offloaded)
return 0;
if (attr->ct_attr.ct_action & TCA_CT_ACT_CLEAR) {
err = mlx5_tc_ct_entry_set_registers(priv, &attr->parse_attr->mod_hdr_acts,
0, 0, 0, 0);
@ -1999,11 +2003,15 @@ mlx5_tc_ct_flow_offload(struct mlx5_tc_ct_priv *priv, struct mlx5_flow_attr *att
attr->action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR;
}
if (!attr->ct_attr.nf_ft) /* means only ct clear action, and not ct_clear,ct() */
if (!attr->ct_attr.nf_ft) { /* means only ct clear action, and not ct_clear,ct() */
attr->ct_attr.offloaded = true;
return 0;
}
mutex_lock(&priv->control_lock);
err = __mlx5_tc_ct_flow_offload(priv, attr);
if (!err)
attr->ct_attr.offloaded = true;
mutex_unlock(&priv->control_lock);
return err;
@ -2021,7 +2029,7 @@ void
mlx5_tc_ct_delete_flow(struct mlx5_tc_ct_priv *priv,
struct mlx5_flow_attr *attr)
{
if (!attr->ct_attr.ft) /* no ct action, return */
if (!attr->ct_attr.offloaded) /* no ct action, return */
return;
if (!attr->ct_attr.nf_ft) /* means only ct clear action, and not ct_clear,ct() */
return;

1
drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h
View File

@ -29,6 +29,7 @@ struct mlx5_ct_attr {
u32 ct_labels_id;
u32 act_miss_mapping;
u64 act_miss_cookie;
bool offloaded;
struct mlx5_ct_ft *ft;
};