[5.4,340/434] net: ethernet: ti: ale: clean ale tbl on init and intf restart

Message ID 20191229172724.551875854@linuxfoundation.org
State New
Headers show
Series
  • Untitled series #25985
Related show

Commit Message

Greg KH Dec. 29, 2019, 5:26 p.m.
From: Grygorii Strashko <grygorii.strashko@ti.com>


[ Upstream commit 7fe579dfb90fcdf0c7722f33c772d5f0d1bc7cb6 ]

Clean CPSW ALE on init and intf restart (up/down) to avoid reading obsolete
or garbage entries from ALE table.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>

Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Sasha Levin <sashal@kernel.org>

---
 drivers/net/ethernet/ti/cpsw_ale.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.20.1

Patch

diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c
index 84025dcc78d5..e7c24396933e 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.c
+++ b/drivers/net/ethernet/ti/cpsw_ale.c
@@ -779,6 +779,7 @@  void cpsw_ale_start(struct cpsw_ale *ale)
 void cpsw_ale_stop(struct cpsw_ale *ale)
 {
 	del_timer_sync(&ale->timer);
+	cpsw_ale_control_set(ale, 0, ALE_CLEAR, 1);
 	cpsw_ale_control_set(ale, 0, ALE_ENABLE, 0);
 }
 
@@ -862,6 +863,7 @@  struct cpsw_ale *cpsw_ale_create(struct cpsw_ale_params *params)
 					ALE_UNKNOWNVLAN_FORCE_UNTAG_EGRESS;
 	}
 
+	cpsw_ale_control_set(ale, 0, ALE_CLEAR, 1);
 	return ale;
 }