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Subject[PATCH net-next v2 4/8] net: microchip: sparx5: Add TC support for IS0 VCAP
Date
This enables the TC command to use the Sparx5 IS0 VCAP

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
---
.../microchip/sparx5/sparx5_tc_flower.c | 54 +++++++++++++++----
1 file changed, 45 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c b/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c
index affaa1656710..72bc2733b662 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_tc_flower.c
@@ -30,6 +30,7 @@ struct sparx5_tc_flower_parse_usage {
struct flow_cls_offload *fco;
struct flow_rule *frule;
struct vcap_rule *vrule;
+ struct vcap_admin *admin;
u16 l3_proto;
u8 l4_proto;
unsigned int used_keys;
@@ -304,6 +305,13 @@ sparx5_tc_flower_handler_basic_usage(struct sparx5_tc_flower_parse_usage *st)
VCAP_BIT_0);
if (err)
goto out;
+ if (st->admin->vtype == VCAP_TYPE_IS0) {
+ err = vcap_rule_add_key_bit(st->vrule,
+ VCAP_KF_TCP_UDP_IS,
+ VCAP_BIT_1);
+ if (err)
+ goto out;
+ }
} else {
err = vcap_rule_add_key_u32(st->vrule,
VCAP_KF_L3_IP_PROTO,
@@ -542,6 +550,7 @@ static int sparx5_tc_use_dissectors(struct flow_cls_offload *fco,
.fco = fco,
.vrule = vrule,
.l3_proto = ETH_P_ALL,
+ .admin = admin,
};
int idx, err = 0;

@@ -623,18 +632,21 @@ static int sparx5_tc_flower_action_check(struct vcap_control *vctrl,
return 0;
}

-/* Add a rule counter action - only IS2 is considered for now */
+/* Add a rule counter action */
static int sparx5_tc_add_rule_counter(struct vcap_admin *admin,
struct vcap_rule *vrule)
{
int err;

- err = vcap_rule_mod_action_u32(vrule, VCAP_AF_CNT_ID, vrule->id);
- if (err)
- return err;
+ if (admin->vtype == VCAP_TYPE_IS2) {
+ err = vcap_rule_mod_action_u32(vrule, VCAP_AF_CNT_ID,
+ vrule->id);
+ if (err)
+ return err;
+ vcap_rule_set_counter_id(vrule, vrule->id);
+ }

- vcap_rule_set_counter_id(vrule, vrule->id);
- return err;
+ return 0;
}

/* Collect all port keysets and apply the first of them, possibly wildcarded */
@@ -815,6 +827,29 @@ static int sparx5_tc_add_remaining_rules(struct vcap_control *vctrl,
return err;
}

+/* Add the actionset that is the default for the VCAP type */
+static int sparx5_tc_set_actionset(struct vcap_admin *admin,
+ struct vcap_rule *vrule)
+{
+ enum vcap_actionfield_set aset;
+ int err = 0;
+
+ switch (admin->vtype) {
+ case VCAP_TYPE_IS0:
+ aset = VCAP_AFS_CLASSIFICATION;
+ break;
+ case VCAP_TYPE_IS2:
+ aset = VCAP_AFS_BASE_TYPE;
+ break;
+ default:
+ return -EINVAL;
+ }
+ /* Do not overwrite any current actionset */
+ if (vrule->actionset == VCAP_AFS_NO_VALUE)
+ err = vcap_set_rule_set_actionset(vrule, aset);
+ return err;
+}
+
static int sparx5_tc_flower_replace(struct net_device *ndev,
struct flow_cls_offload *fco,
struct vcap_admin *admin)
@@ -874,13 +909,14 @@ static int sparx5_tc_flower_replace(struct net_device *ndev,
goto out;
break;
case FLOW_ACTION_ACCEPT:
- /* For now the actionset is hardcoded */
- err = vcap_set_rule_set_actionset(vrule,
- VCAP_AFS_BASE_TYPE);
+ err = sparx5_tc_set_actionset(admin, vrule);
if (err)
goto out;
break;
case FLOW_ACTION_GOTO:
+ err = sparx5_tc_set_actionset(admin, vrule);
+ if (err)
+ goto out;
/* Links between VCAPs will be added later */
break;
default:
--
2.39.1
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