[PATCH AUTOSEL 4.19 10/68] net: mvpp2: Don't check for 3 consecutive Idle frames for 10G links

[Sasha Levin]

From: Maxime Chevallier <maxime.chevall...@bootlin.com>

[ Upstream commit bba18318e7d1d5c8b0bbafd65010a0cee3c65608 ]

PPv2's XLGMAC can wait for 3 idle frames before triggering a link up
event. This can cause the link to be stuck low when there's traffic on
the interface, so disable this feature.

Fixes: 4bb043262878 ("net: mvpp2: phylink support")
Signed-off-by: Maxime Chevallier <maxime.chevall...@bootlin.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c 
b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 6455511457ca3..9b608d23ff7ee 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -4412,9 +4412,9 @@ static void mvpp2_xlg_config(struct mvpp2_port *port, 
unsigned int mode,
        if (state->pause & MLO_PAUSE_RX)
                ctrl0 |= MVPP22_XLG_CTRL0_RX_FLOW_CTRL_EN;
 
-       ctrl4 &= ~MVPP22_XLG_CTRL4_MACMODSELECT_GMAC;
-       ctrl4 |= MVPP22_XLG_CTRL4_FWD_FC | MVPP22_XLG_CTRL4_FWD_PFC |
-                MVPP22_XLG_CTRL4_EN_IDLE_CHECK;
+       ctrl4 &= ~(MVPP22_XLG_CTRL4_MACMODSELECT_GMAC |
+                  MVPP22_XLG_CTRL4_EN_IDLE_CHECK);
+       ctrl4 |= MVPP22_XLG_CTRL4_FWD_FC | MVPP22_XLG_CTRL4_FWD_PFC;
 
        writel(ctrl0, port->base + MVPP22_XLG_CTRL0_REG);
        writel(ctrl4, port->base + MVPP22_XLG_CTRL4_REG);
-- 
2.20.1