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From: Antoine Tenart <antoine.tenart@bootlin.com>
To: davem@davemloft.net, linux@armlinux.org.uk
Cc: Antoine Tenart <antoine.tenart@bootlin.com>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	thomas.petazzoni@bootlin.com, maxime.chevallier@bootlin.com,
	gregory.clement@bootlin.com, miquel.raynal@bootlin.com,
	nadavh@marvell.com, stefanc@marvell.com, ymarkman@marvell.com,
	mw@semihalf.com
Subject: [PATCH net-next 03/13] net: mvpp2: do not disable the port if the mode hasn't changed
Date: Fri, 15 Feb 2019 16:32:31 +0100	[thread overview]
Message-ID: <20190215153241.6857-4-antoine.tenart@bootlin.com> (raw)
In-Reply-To: <20190215153241.6857-1-antoine.tenart@bootlin.com>

The Marvell PPv2 implementation of the Phylink mac_config helper
disables and enables the port, as the link mode can trigger
reconfiguration of the serdes lanes. This patch helps not disabling the
port every time mac_config is called but only when needed, which is an
improvement as the Phylink state machine does call the function every
second.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 8faa842dc17c..d5a103dd1610 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -4670,9 +4670,10 @@ static void mvpp2_mac_config(struct net_device *dev, unsigned int mode,
 		return;
 	}
 
-	/* Make sure the port is disabled when reconfiguring the mode */
-	mvpp2_port_disable(port);
 	if (change_interface) {
+		/* Make sure the port is disabled when reconfiguring the mode */
+		mvpp2_port_disable(port);
+
 		mvpp22_gop_mask_irq(port);
 
 		if (port->priv->hw_version == MVPP22) {
@@ -4682,6 +4683,8 @@ static void mvpp2_mac_config(struct net_device *dev, unsigned int mode,
 			phy_power_off(port->comphy);
 			mvpp22_mode_reconfigure(port);
 		}
+
+		mvpp2_port_enable(port);
 	}
 
 	/* mac (re)configuration */
@@ -4697,8 +4700,6 @@ static void mvpp2_mac_config(struct net_device *dev, unsigned int mode,
 
 	if (change_interface)
 		mvpp22_gop_unmask_irq(port);
-
-	mvpp2_port_enable(port);
 }
 
 static void mvpp2_mac_link_up(struct net_device *dev, unsigned int mode,
-- 
2.20.1


  parent reply	other threads:[~2019-02-15 15:35 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-15 15:32 [PATCH net-next 00/13] net: mvpp2: various fixes Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 01/13] net: mvpp2: do not call phylink_mac_change if there is no event Antoine Tenart
2019-02-15 17:05   ` Russell King - ARM Linux admin
2019-02-18 10:40     ` Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 02/13] net: mvpp2: a port can be disabled even if we use the link IRQ Antoine Tenart
2019-02-15 15:32 ` Antoine Tenart [this message]
2019-02-15 15:32 ` [PATCH net-next 04/13] net: mvpp2: reconfiguring the port interface is PPv2.2 specific Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 05/13] net: mvpp2: do not set the XLG MAC in reset when disabling a port Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 06/13] net: mvpp2: fix a typo in the header Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 07/13] net: mvpp2: fix validate for PPv2.1 Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 08/13] net: mvpp2: fix the computation of the RXQs Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 09/13] net: mvpp2: update the port documentation regarding the GoP Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 10/13] net: mvpp2: reset the XPCS while reconfiguring the serdes lanes Antoine Tenart
2019-02-15 17:12   ` Russell King - ARM Linux admin
2019-02-15 17:23     ` Stefan Chulski
2019-02-18 10:26     ` Antoine Tenart
2019-02-18 10:43       ` Russell King - ARM Linux admin
2019-02-18 10:47         ` Russell King - ARM Linux admin
2019-02-18 10:52           ` Antoine Tenart
2019-02-18 11:08             ` [EXT] " Stefan Chulski
2019-02-18 11:28               ` Russell King - ARM Linux admin
2019-02-18 11:33                 ` Stefan Chulski
2019-02-18 10:50         ` Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 11/13] net: mvpp2: reset the XLG MAC in port_reset Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 12/13] net: mvpp2: fix alignment of MVPP2_GMAC_CONFIG_MII_SPEED definition Antoine Tenart
2019-02-15 15:32 ` [PATCH net-next 13/13] net: mvpp2: some AN fields require the link to be down when updated Antoine Tenart
2019-02-17 21:23 ` [PATCH net-next 00/13] net: mvpp2: various fixes David Miller

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