net: prestera: acl: extract matchall logic into a separate file

This commit adds more clarity to handling of TC_CLSMATCHALL_REPLACE and
TC_CLSMATCHALL_DESTROY events by calling newly added *_mall_*() handlers
instead of directly calling SPAN API.

This also extracts matchall rules management out of SPAN API since SPAN
is a hardware module which is used to implement 'matchall egress mirred'
action only.

Signed-off-by: Taras Chornyi <tchornyi@marvell.com>
Signed-off-by: Serhiy Boiko <serhiy.boiko@plvision.eu>
Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 57 deletions

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_span.c b/drivers/net/ethernet/marvell/prestera/prestera_span.c
index 845e9d8c8cc7..766413b9ba1b 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_span.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_span.c
@@ -120,8 +120,8 @@ static int prestera_span_put(struct prestera_switch *sw, u8 span_id)
 	return 0;
 }
 
-static int prestera_span_rule_add(struct prestera_flow_block_binding *binding,
-				  struct prestera_port *to_port)
+int prestera_span_rule_add(struct prestera_flow_block_binding *binding,
+			   struct prestera_port *to_port)
 {
 	struct prestera_switch *sw = binding->port->sw;
 	u8 span_id;
@@ -145,7 +145,7 @@ static int prestera_span_rule_add(struct prestera_flow_block_binding *binding,
 	return 0;
 }
 
-static int prestera_span_rule_del(struct prestera_flow_block_binding *binding)
+int prestera_span_rule_del(struct prestera_flow_block_binding *binding)
 {
 	int err;
 
@@ -161,60 +161,6 @@ static int prestera_span_rule_del(struct prestera_flow_block_binding *binding)
 	return 0;
 }
 
-int prestera_span_replace(struct prestera_flow_block *block,
-			  struct tc_cls_matchall_offload *f)
-{
-	struct prestera_flow_block_binding *binding;
-	__be16 protocol = f->common.protocol;
-	struct flow_action_entry *act;
-	struct prestera_port *port;
-	int err;
-
-	if (!flow_offload_has_one_action(&f->rule->action)) {
-		NL_SET_ERR_MSG(f->common.extack,
-			       "Only singular actions are supported");
-		return -EOPNOTSUPP;
-	}
-
-	act = &f->rule->action.entries[0];
-
-	if (!prestera_netdev_check(act->dev)) {
-		NL_SET_ERR_MSG(f->common.extack,
-			       "Only Marvell Prestera port is supported");
-		return -EINVAL;
-	}
-	if (!tc_cls_can_offload_and_chain0(act->dev, &f->common))
-		return -EOPNOTSUPP;
-	if (act->id != FLOW_ACTION_MIRRED)
-		return -EOPNOTSUPP;
-	if (protocol != htons(ETH_P_ALL))
-		return -EOPNOTSUPP;
-
-	port = netdev_priv(act->dev);
-
-	list_for_each_entry(binding, &block->binding_list, list) {
-		err = prestera_span_rule_add(binding, port);
-		if (err)
-			goto rollback;
-	}
-
-	return 0;
-
-rollback:
-	list_for_each_entry_continue_reverse(binding,
-					     &block->binding_list, list)
-		prestera_span_rule_del(binding);
-	return err;
-}
-
-void prestera_span_destroy(struct prestera_flow_block *block)
-{
-	struct prestera_flow_block_binding *binding;
-
-	list_for_each_entry(binding, &block->binding_list, list)
-		prestera_span_rule_del(binding);
-}
-
 int prestera_span_init(struct prestera_switch *sw)
 {
 	struct prestera_span *span;