netdev - [PATCH net-next 2/5] net: systemport: Utilize bcm_sysport_set

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Message-Id: <20180927223614.7116-3-f.fainelli@gmail.com>
Date:   Thu, 27 Sep 2018 15:36:11 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, Florian Fainelli <f.fainelli@...il.com>
Subject: [PATCH net-next 2/5] net: systemport: Utilize bcm_sysport_set_features() during resume/open

During driver resume and open, the HW may have lost its context/state,
utilize bcm_sysport_set_features() to make sure we do restore the
correct set of features that were previously configured.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/net/ethernet/broadcom/bcmsysport.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 654a07b849c4..3b4cb906a275 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -1972,6 +1972,11 @@ static int bcm_sysport_open(struct net_device *dev)
 	else
 		gib_set_pad_extension(priv);
 
+	/* Apply features again in case we changed them while interface was
+	 * down
+	 */
+	bcm_sysport_set_features(dev, dev->features);
+
 	/* Set MAC address */
 	umac_set_hw_addr(priv, dev->dev_addr);
 
@@ -2708,7 +2713,6 @@ static int __maybe_unused bcm_sysport_resume(struct device *d)
 	struct net_device *dev = dev_get_drvdata(d);
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
 	unsigned int i;
-	u32 reg;
 	int ret;
 
 	if (!netif_running(dev))
@@ -2752,12 +2756,8 @@ static int __maybe_unused bcm_sysport_resume(struct device *d)
 		goto out_free_rx_ring;
 	}
 
-	/* Enable rxhck */
-	if (priv->rx_chk_en) {
-		reg = rxchk_readl(priv, RXCHK_CONTROL);
-		reg |= RXCHK_EN;
-		rxchk_writel(priv, reg, RXCHK_CONTROL);
-	}
+	/* Restore enabled features */
+	bcm_sysport_set_features(dev, dev->features);
 
 	rbuf_init(priv);
 
-- 
2.17.1