netdev - [PATCH net-next 4/4] net: mvpp2: set xlg flow control in mvpp2_mac_link

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Message-Id: <E1jlwd3-0005I8-UI@rmk-PC.armlinux.org.uk>
Date:   Thu, 18 Jun 2020 16:39:01 +0100
From:   Russell King <rmk+kernel@...linux.org.uk>
To:     Antoine Tenart <antoine.tenart@...tlin.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH net-next 4/4] net: mvpp2: set xlg flow control in
 mvpp2_mac_link_up()

Set the flow control settings in mvpp2_mac_link_up() for 10G links
just as we do for 1G and slower links. This is now the preferred
location.

Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
---
 .../net/ethernet/marvell/mvpp2/mvpp2_main.c   | 23 +++++++++----------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 9edd8fbf18a6..1eb5652cd674 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -4960,17 +4960,9 @@ static void mvpp2_xlg_config(struct mvpp2_port *port, unsigned int mode,
 {
 	u32 val;
 
-	val = MVPP22_XLG_CTRL0_MAC_RESET_DIS;
-	if (state->pause & MLO_PAUSE_TX)
-		val |= MVPP22_XLG_CTRL0_TX_FLOW_CTRL_EN;
-
-	if (state->pause & MLO_PAUSE_RX)
-		val |= MVPP22_XLG_CTRL0_RX_FLOW_CTRL_EN;
-
 	mvpp2_modify(port->base + MVPP22_XLG_CTRL0_REG,
-		     MVPP22_XLG_CTRL0_MAC_RESET_DIS |
-		     MVPP22_XLG_CTRL0_TX_FLOW_CTRL_EN |
-		     MVPP22_XLG_CTRL0_RX_FLOW_CTRL_EN, val);
+		     MVPP22_XLG_CTRL0_MAC_RESET_DIS,
+		     MVPP22_XLG_CTRL0_MAC_RESET_DIS);
 	mvpp2_modify(port->base + MVPP22_XLG_CTRL4_REG,
 		     MVPP22_XLG_CTRL4_MACMODSELECT_GMAC |
 		     MVPP22_XLG_CTRL4_EN_IDLE_CHECK |
@@ -5160,10 +5152,17 @@ static void mvpp2_mac_link_up(struct phylink_config *config,
 
 	if (mvpp2_is_xlg(interface)) {
 		if (!phylink_autoneg_inband(mode)) {
+			val = MVPP22_XLG_CTRL0_FORCE_LINK_PASS;
+			if (tx_pause)
+				val |= MVPP22_XLG_CTRL0_TX_FLOW_CTRL_EN;
+			if (rx_pause)
+				val |= MVPP22_XLG_CTRL0_RX_FLOW_CTRL_EN;
+
 			mvpp2_modify(port->base + MVPP22_XLG_CTRL0_REG,
 				     MVPP22_XLG_CTRL0_FORCE_LINK_DOWN |
-				     MVPP22_XLG_CTRL0_FORCE_LINK_PASS,
-				     MVPP22_XLG_CTRL0_FORCE_LINK_PASS);
+				     MVPP22_XLG_CTRL0_FORCE_LINK_PASS |
+				     MVPP22_XLG_CTRL0_TX_FLOW_CTRL_EN |
+				     MVPP22_XLG_CTRL0_RX_FLOW_CTRL_EN, val);
 		}
 	} else {
 		if (!phylink_autoneg_inband(mode)) {
-- 
2.20.1