net: microchip: sparx5: Add support for TC flower filter statistics

This provides flower filter packet statistics (bytes are not supported) via
the dedicated IS2 counter feature.

All rules having the same TC cookie will contribute to the packet
statistics for the filter as they are considered to be part of the same TC
flower filter.

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 25 insertions, 0 deletions

diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api.c b/drivers/net/ethernet/microchip/vcap/vcap_api.c
index 9c660e718526..d12c8ec40fe2 100644
--- a/drivers/net/ethernet/microchip/vcap/vcap_api.c
+++ b/drivers/net/ethernet/microchip/vcap/vcap_api.c
@@ -1729,6 +1729,31 @@ void vcap_rule_set_counter_id(struct vcap_rule *rule, u32 counter_id)
 }
 EXPORT_SYMBOL_GPL(vcap_rule_set_counter_id);
 
+/* Provide all rules via a callback interface */
+int vcap_rule_iter(struct vcap_control *vctrl,
+		   int (*callback)(void *, struct vcap_rule *), void *arg)
+{
+	struct vcap_rule_internal *ri;
+	struct vcap_admin *admin;
+	int ret;
+
+	ret = vcap_api_check(vctrl);
+	if (ret)
+		return ret;
+
+	/* Iterate all rules in each VCAP instance */
+	list_for_each_entry(admin, &vctrl->list, list) {
+		list_for_each_entry(ri, &admin->rules, list) {
+			ret = callback(arg, &ri->data);
+			if (ret)
+				return ret;
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(vcap_rule_iter);
+
 int vcap_rule_set_counter(struct vcap_rule *rule, struct vcap_counter *ctr)
 {
 	struct vcap_rule_internal *ri = to_intrule(rule);