stmmac: if force_thresh_dma_mode is set, pass tc to both txmode and rxmode in tx_hard...

Dont' pass SF_DMA_MODE to rxmode in this case.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index d7fc2b5..6e2a8fa 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1454,7 +1454,11 @@ static void stmmac_dma_interrupt(struct stmmac_priv *priv)
                /* Try to bump up the dma threshold on this failure */
                if (unlikely(tc != SF_DMA_MODE) && (tc <= 256)) {
                        tc += 64;
-                       priv->hw->dma->dma_mode(priv->ioaddr, tc, SF_DMA_MODE);
+                       if (priv->plat->force_thresh_dma_mode)
+                               priv->hw->dma->dma_mode(priv->ioaddr, tc, tc);
+                       else
+                               priv->hw->dma->dma_mode(priv->ioaddr, tc,
+                                       SF_DMA_MODE);
                        priv->xstats.threshold = tc;
                }
        } else if (unlikely(status == tx_hard_error))