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net/mlx5: E-Switch, Enable/disable ACL tables on demand

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Enable ingress/egress ACL tables only when we need to configure ACL
rules.
Disable ingress/egress ACL tables once all ACL rules are removed.

All VF outgoing/incoming traffic need to go through the ingress/egress ACL
tables.
Adding/Removing these tables on demand will save unnecessary hops in the
flow steering when the ACL tables are empty.

Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mohamad Haj Yahia 2016-05-03 17:14:00 +03:00 committed by David S. Miller
parent f942380c12
commit 01f51f2247
1 changed files with 14 additions and 19 deletions
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33
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
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@ -728,7 +728,8 @@ static void esw_vport_enable_egress_acl(struct mlx5_eswitch *esw,
int table_size = 2;
int err = 0;
if (!MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support))
if (!MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support) ||
!IS_ERR_OR_NULL(vport->egress.acl))
return;
esw_debug(dev, "Create vport[%d] egress ACL log_max_size(%d)\n",
@ -841,7 +842,8 @@ static void esw_vport_enable_ingress_acl(struct mlx5_eswitch *esw,
int table_size = 4;
int err = 0;
if (!MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support))
if (!MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support) ||
!IS_ERR_OR_NULL(vport->ingress.acl))
return;
esw_debug(dev, "Create vport[%d] ingress ACL log_max_size(%d)\n",
@ -989,13 +991,6 @@ static int esw_vport_ingress_config(struct mlx5_eswitch *esw,
int err = 0;
u8 *smac_v;
if (IS_ERR_OR_NULL(vport->ingress.acl)) {
esw_warn(esw->dev,
"vport[%d] configure ingress rules failed, ingress acl is not initialized!\n",
vport->vport);
return -EPERM;
}
if (vport->spoofchk) {
err = mlx5_query_nic_vport_mac_address(esw->dev, vport->vport, smac);
if (err) {
@ -1015,8 +1010,12 @@ static int esw_vport_ingress_config(struct mlx5_eswitch *esw,
esw_vport_cleanup_ingress_rules(esw, vport);
if (!vport->vlan && !vport->qos && !vport->spoofchk)
if (!vport->vlan && !vport->qos && !vport->spoofchk) {
esw_vport_disable_ingress_acl(esw, vport);
return 0;
}
esw_vport_enable_ingress_acl(esw, vport);
esw_debug(esw->dev,
"vport[%d] configure ingress rules, vlan(%d) qos(%d)\n",
@ -1091,16 +1090,14 @@ static int esw_vport_egress_config(struct mlx5_eswitch *esw,
u32 *match_c;
int err = 0;
if (IS_ERR_OR_NULL(vport->egress.acl)) {
esw_warn(esw->dev, "vport[%d] configure rgress rules failed, egress acl is not initialized!\n",
vport->vport);
return -EPERM;
}
esw_vport_cleanup_egress_rules(esw, vport);
if (!vport->vlan && !vport->qos)
if (!vport->vlan && !vport->qos) {
esw_vport_disable_egress_acl(esw, vport);
return 0;
}
esw_vport_enable_egress_acl(esw, vport);
esw_debug(esw->dev,
"vport[%d] configure egress rules, vlan(%d) qos(%d)\n",
@ -1169,8 +1166,6 @@ static void esw_enable_vport(struct mlx5_eswitch *esw, int vport_num,
esw_debug(esw->dev, "Enabling VPORT(%d)\n", vport_num);
if (vport_num) { /* Only VFs need ACLs for VST and spoofchk filtering */
esw_vport_enable_ingress_acl(esw, vport);
esw_vport_enable_egress_acl(esw, vport);
esw_vport_ingress_config(esw, vport);
esw_vport_egress_config(esw, vport);
}