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 7ccfa63..b203143 100644 (file)
--- 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;
 }