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mlxsw: spectrum: Add support for counters on TCAM entries 

Add support for packets and byte statistics on TCAM entries. The counters
are allocated from the generic flow counters pool.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arkadi Sharshevsky 2017-03-11 09:42:58 +01:00 committed by David S. Miller
parent 938ab60860
commit 4817072950
2 changed files with 42 additions and 0 deletions
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7
drivers/net/ethernet/mellanox/mlxsw/spectrum.h
View File

@ -588,6 +588,8 @@ struct mlxsw_sp_acl_rule_info {
unsigned int priority;
struct mlxsw_afk_element_values values;
struct mlxsw_afa_block *act_block;
unsigned int counter_index;
bool counter_valid;
};
enum mlxsw_sp_acl_profile {
@ -652,6 +654,8 @@ int mlxsw_sp_acl_rulei_act_fwd(struct mlxsw_sp *mlxsw_sp,
int mlxsw_sp_acl_rulei_act_vlan(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_rule_info *rulei,
u32 action, u16 vid, u16 proto, u8 prio);
int mlxsw_sp_acl_rulei_act_count(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_rule_info *rulei);
struct mlxsw_sp_acl_rule;
@ -671,6 +675,9 @@ mlxsw_sp_acl_rule_lookup(struct mlxsw_sp *mlxsw_sp,
unsigned long cookie);
struct mlxsw_sp_acl_rule_info *
mlxsw_sp_acl_rule_rulei(struct mlxsw_sp_acl_rule *rule);
int mlxsw_sp_acl_rule_get_stats(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_rule *rule,
u64 *packets, u64 *bytes, u64 *last_use);
int mlxsw_sp_acl_init(struct mlxsw_sp *mlxsw_sp);
void mlxsw_sp_acl_fini(struct mlxsw_sp *mlxsw_sp);

35
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
View File

@ -247,6 +247,27 @@ void mlxsw_sp_acl_ruleset_put(struct mlxsw_sp *mlxsw_sp,
mlxsw_sp_acl_ruleset_ref_dec(mlxsw_sp, ruleset);
}
static int
mlxsw_sp_acl_rulei_counter_alloc(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_rule_info *rulei)
{
int err;
err = mlxsw_sp_flow_counter_alloc(mlxsw_sp, &rulei->counter_index);
if (err)
return err;
rulei->counter_valid = true;
return 0;
}
static void
mlxsw_sp_acl_rulei_counter_free(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_rule_info *rulei)
{
rulei->counter_valid = false;
mlxsw_sp_flow_counter_free(mlxsw_sp, rulei->counter_index);
}
struct mlxsw_sp_acl_rule_info *
mlxsw_sp_acl_rulei_create(struct mlxsw_sp_acl *acl)
{
@ -373,6 +394,13 @@ int mlxsw_sp_acl_rulei_act_vlan(struct mlxsw_sp *mlxsw_sp,
}
}
int mlxsw_sp_acl_rulei_act_count(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_rule_info *rulei)
{
return mlxsw_afa_block_append_counter(rulei->act_block,
rulei->counter_index);
}
struct mlxsw_sp_acl_rule *
mlxsw_sp_acl_rule_create(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_ruleset *ruleset,
@ -396,8 +424,14 @@ mlxsw_sp_acl_rule_create(struct mlxsw_sp *mlxsw_sp,
err = PTR_ERR(rule->rulei);
goto err_rulei_create;
}
err = mlxsw_sp_acl_rulei_counter_alloc(mlxsw_sp, rule->rulei);
if (err)
goto err_counter_alloc;
return rule;
err_counter_alloc:
mlxsw_sp_acl_rulei_destroy(rule->rulei);
err_rulei_create:
kfree(rule);
err_alloc:
@ -410,6 +444,7 @@ void mlxsw_sp_acl_rule_destroy(struct mlxsw_sp *mlxsw_sp,
{
struct mlxsw_sp_acl_ruleset *ruleset = rule->ruleset;
mlxsw_sp_acl_rulei_counter_free(mlxsw_sp, rule->rulei);
mlxsw_sp_acl_rulei_destroy(rule->rulei);
kfree(rule);
mlxsw_sp_acl_ruleset_ref_dec(mlxsw_sp, ruleset);