linux-kernel - [PATCH net-next] net: prestera: cache port state for non-phylink ports too

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Date:   Thu, 18 Aug 2022 14:18:21 +0300
From:   Maksym Glubokiy <maksym.glubokiy@...ision.eu>
To:     Taras Chornyi <tchornyi@...vell.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Russell King <linux@...linux.org.uk>,
        Yevhen Orlov <yevhen.orlov@...ision.eu>,
        Oleksandr Mazur <oleksandr.mazur@...ision.eu>
Cc:     Maksym Glubokiy <maksym.glubokiy@...ision.eu>,
        Taras Chornyi <taras.chornyi@...ision.eu>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next] net: prestera: cache port state for non-phylink ports too

Port event data must stored to port-state cache regardless of whether
the port uses phylink or not since this data is used by ethtool.

Fixes: 52323ef75414 ("net: marvell: prestera: add phylink support")
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@...ision.eu>
Signed-off-by: Maksym Glubokiy <maksym.glubokiy@...ision.eu>
---
 .../ethernet/marvell/prestera/prestera_main.c | 36 +++++++++----------
 1 file changed, 17 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
index ede3e53b9790..3489b80ae0d6 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -797,32 +797,30 @@ static void prestera_port_handle_event(struct prestera_switch *sw,
 
 		caching_dw = &port->cached_hw_stats.caching_dw;
 
-		if (port->phy_link) {
-			memset(&smac, 0, sizeof(smac));
-			smac.valid = true;
-			smac.oper = pevt->data.mac.oper;
-			if (smac.oper) {
-				smac.mode = pevt->data.mac.mode;
-				smac.speed = pevt->data.mac.speed;
-				smac.duplex = pevt->data.mac.duplex;
-				smac.fc = pevt->data.mac.fc;
-				smac.fec = pevt->data.mac.fec;
-				phylink_mac_change(port->phy_link, true);
-			} else {
-				phylink_mac_change(port->phy_link, false);
-			}
-			prestera_port_mac_state_cache_write(port, &smac);
+		memset(&smac, 0, sizeof(smac));
+		smac.valid = true;
+		smac.oper = pevt->data.mac.oper;
+		if (smac.oper) {
+			smac.mode = pevt->data.mac.mode;
+			smac.speed = pevt->data.mac.speed;
+			smac.duplex = pevt->data.mac.duplex;
+			smac.fc = pevt->data.mac.fc;
+			smac.fec = pevt->data.mac.fec;
 		}
+		prestera_port_mac_state_cache_write(port, &smac);
 
 		if (port->state_mac.oper) {
-			if (!port->phy_link)
+			if (port->phy_link)
+				phylink_mac_change(port->phy_link, true);
+			else
 				netif_carrier_on(port->dev);
 
 			if (!delayed_work_pending(caching_dw))
 				queue_delayed_work(prestera_wq, caching_dw, 0);
-		} else if (netif_running(port->dev) &&
-			   netif_carrier_ok(port->dev)) {
-			if (!port->phy_link)
+		} else {
+			if (port->phy_link)
+				phylink_mac_change(port->phy_link, false);
+			else if (netif_running(port->dev) && netif_carrier_ok(port->dev))
 				netif_carrier_off(port->dev);
 
 			if (delayed_work_pending(caching_dw))
-- 
2.25.1