net: stmmac: Do not disable interrupts when cleaning TX

This is a performance killer and anyways the interrupts are being
disabled by RX NAPI so no need to disable them again.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.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 4a5941caaadc187321815b862c65e551fc5308fc..e8f3e76889c8cc10fea5edded356feeba69a140a 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2061,10 +2061,8 @@ static int stmmac_napi_check(struct stmmac_priv *priv, u32 chan)
                napi_schedule_irqoff(&ch->rx_napi);
        }
 
-       if ((status & handle_tx) && (chan < priv->plat->tx_queues_to_use)) {
-               stmmac_disable_dma_irq(priv, priv->ioaddr, chan);
+       if ((status & handle_tx) && (chan < priv->plat->tx_queues_to_use))
                napi_schedule_irqoff(&ch->tx_napi);
-       }
 
        return status;
 }
@@ -3570,8 +3568,8 @@ static int stmmac_napi_poll_tx(struct napi_struct *napi, int budget)
        work_done = stmmac_tx_clean(priv, DMA_TX_SIZE, chan);
        work_done = min(work_done, budget);
 
-       if (work_done < budget && napi_complete_done(napi, work_done))
-               stmmac_enable_dma_irq(priv, priv->ioaddr, chan);
+       if (work_done < budget)
+               napi_complete_done(napi, work_done);
 
        /* Force transmission restart */
        tx_q = &priv->tx_queue[chan];