From: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Date: Sat, 10 Dec 2016 12:23:50 +0000 (+0200)
Subject: net: ethernet: ti: cpsw: sync rates for channels in dual emac mode
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=52986a2f926cc0de544e32005a3436bb6db39f10;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

net: ethernet: ti: cpsw: sync rates for channels in dual emac mode

The channels are common for both ndevs in dual emac mode. Hence, keep
in sync their rates.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 7ccfa635d98f..b203143647e6 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2020,9 +2020,10 @@ static int cpsw_ndo_set_tx_maxrate(struct net_device *ndev, int queue, u32 rate)
 {
 	struct cpsw_priv *priv = netdev_priv(ndev);
 	struct cpsw_common *cpsw = priv->cpsw;
+	struct cpsw_slave *slave;
 	u32 min_rate;
 	u32 ch_rate;
-	int ret;
+	int i, ret;
 
 	ch_rate = netdev_get_tx_queue(ndev, queue)->tx_maxrate;
 	if (ch_rate == rate)
@@ -2053,6 +2054,15 @@ static int cpsw_ndo_set_tx_maxrate(struct net_device *ndev, int queue, u32 rate)
 	if (ret)
 		return ret;
 
+	/* update rates for slaves tx queues */
+	for (i = 0; i < cpsw->data.slaves; i++) {
+		slave = &cpsw->slaves[i];
+		if (!slave->ndev)
+			continue;
+
+		netdev_get_tx_queue(slave->ndev, queue)->tx_maxrate = rate;
+	}
+
 	cpsw_split_res(ndev);
 	return ret;
 }