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mlxsw: spectrum_acl: Provide helper to lookup ruleset

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We need to lookup ruleset in order to offload goto_chain termination
action. This patch adds it.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2017-08-23 10:08:21 +02:00 committed by David S. Miller
parent 0ade3b6457
commit dbec8ee95a
2 changed files with 41 additions and 8 deletions
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4
drivers/net/ethernet/mellanox/mlxsw/spectrum.h
View File

@ -441,6 +441,10 @@ struct mlxsw_sp_acl_ruleset;
/* spectrum_acl.c */
struct mlxsw_afk *mlxsw_sp_acl_afk(struct mlxsw_sp_acl *acl);
struct mlxsw_sp_acl_ruleset *
mlxsw_sp_acl_ruleset_lookup(struct mlxsw_sp *mlxsw_sp, struct net_device *dev,
bool ingress, u32 chain_index,
enum mlxsw_sp_acl_profile profile);
struct mlxsw_sp_acl_ruleset *
mlxsw_sp_acl_ruleset_get(struct mlxsw_sp *mlxsw_sp, struct net_device *dev,
bool ingress, u32 chain_index,
enum mlxsw_sp_acl_profile profile);

45
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
View File

@ -221,6 +221,41 @@ static void mlxsw_sp_acl_ruleset_ref_dec(struct mlxsw_sp *mlxsw_sp,
mlxsw_sp_acl_ruleset_destroy(mlxsw_sp, ruleset);
}
static struct mlxsw_sp_acl_ruleset *
__mlxsw_sp_acl_ruleset_lookup(struct mlxsw_sp_acl *acl, struct net_device *dev,
bool ingress, u32 chain_index,
const struct mlxsw_sp_acl_profile_ops *ops)
{
struct mlxsw_sp_acl_ruleset_ht_key ht_key;
memset(&ht_key, 0, sizeof(ht_key));
ht_key.dev = dev;
ht_key.ingress = ingress;
ht_key.chain_index = chain_index;
ht_key.ops = ops;
return rhashtable_lookup_fast(&acl->ruleset_ht, &ht_key,
mlxsw_sp_acl_ruleset_ht_params);
}
struct mlxsw_sp_acl_ruleset *
mlxsw_sp_acl_ruleset_lookup(struct mlxsw_sp *mlxsw_sp, struct net_device *dev,
bool ingress, u32 chain_index,
enum mlxsw_sp_acl_profile profile)
{
const struct mlxsw_sp_acl_profile_ops *ops;
struct mlxsw_sp_acl *acl = mlxsw_sp->acl;
struct mlxsw_sp_acl_ruleset *ruleset;
ops = acl->ops->profile_ops(mlxsw_sp, profile);
if (!ops)
return ERR_PTR(-EINVAL);
ruleset = __mlxsw_sp_acl_ruleset_lookup(acl, dev, ingress,
chain_index, ops);
if (!ruleset)
return ERR_PTR(-ENOENT);
return ruleset;
}
struct mlxsw_sp_acl_ruleset *
mlxsw_sp_acl_ruleset_get(struct mlxsw_sp *mlxsw_sp, struct net_device *dev,
bool ingress, u32 chain_index,
@ -228,7 +263,6 @@ mlxsw_sp_acl_ruleset_get(struct mlxsw_sp *mlxsw_sp, struct net_device *dev,
{
const struct mlxsw_sp_acl_profile_ops *ops;
struct mlxsw_sp_acl *acl = mlxsw_sp->acl;
struct mlxsw_sp_acl_ruleset_ht_key ht_key;
struct mlxsw_sp_acl_ruleset *ruleset;
int err;
@ -236,13 +270,8 @@ mlxsw_sp_acl_ruleset_get(struct mlxsw_sp *mlxsw_sp, struct net_device *dev,
if (!ops)
return ERR_PTR(-EINVAL);
memset(&ht_key, 0, sizeof(ht_key));
ht_key.dev = dev;
ht_key.ingress = ingress;
ht_key.chain_index = chain_index;
ht_key.ops = ops;
ruleset = rhashtable_lookup_fast(&acl->ruleset_ht, &ht_key,
mlxsw_sp_acl_ruleset_ht_params);
ruleset = __mlxsw_sp_acl_ruleset_lookup(acl, dev, ingress,
chain_index, ops);
if (ruleset) {
mlxsw_sp_acl_ruleset_ref_inc(ruleset);
return ruleset;