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From: Jose Abreu <Jose.Abreu@synopsys.com>
To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Cc: Jose Abreu <Jose.Abreu@synopsys.com>,
	Joao Pinto <Joao.Pinto@synopsys.com>,
	"David S . Miller" <davem@davemloft.net>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@st.com>
Subject: [PATCH net-next 06/10] net: stmmac: Do not disable interrupts when cleaning TX
Date: Wed, 26 Jun 2019 15:47:40 +0200	[thread overview]
Message-ID: <f55c822885bbb33a3dc2b53ce6ad9e600c6a3b32.1561556556.git.joabreu@synopsys.com> (raw)
In-Reply-To: <cover.1561556555.git.joabreu@synopsys.com>
In-Reply-To: <cover.1561556555.git.joabreu@synopsys.com>

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>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 1247066c371c..3a6fac22854e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2057,10 +2057,8 @@ 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;
 }
@@ -3560,8 +3558,8 @@ 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];
-- 
2.7.4


  parent reply	other threads:[~2019-06-26 13:48 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-26 13:47 [PATCH net-next 00/10] net: stmmac: 10GbE using XGMAC Jose Abreu
2019-06-26 13:47 ` [PATCH net-next 01/10] net: stmmac: dwxgmac: Enable EDMA by default Jose Abreu
2019-06-26 16:33   ` David Miller
2019-06-26 13:47 ` [PATCH net-next 02/10] net: stmmac: Do not try to enable PHY EEE if MAC does not support it Jose Abreu
2019-06-26 13:47 ` [PATCH net-next 03/10] net: stmmac: Decrease default RX Watchdog value Jose Abreu
2019-06-26 13:47 ` [PATCH net-next 04/10] net: stmmac: dwxgmac: Fix the undefined burst setting Jose Abreu
2019-06-26 13:47 ` [PATCH net-next 05/10] net: stmmac: Add the missing speeds that XGMAC supports Jose Abreu
2019-06-26 13:47 ` Jose Abreu [this message]
2019-06-26 13:47 ` [PATCH net-next 07/10] net: stmmac: Enable support for > 32 Bits addressing in XGMAC Jose Abreu
2019-06-26 20:19   ` Andrew Lunn
2019-06-27  7:54     ` Jose Abreu
2019-06-26 13:47 ` [PATCH net-next 08/10] net: stmmac: Update RX Tail Pointer to last free entry Jose Abreu
2019-06-26 13:47 ` [PATCH net-next 09/10] net: stmmac: Only disable interrupts if NAPI is scheduled Jose Abreu
2019-06-26 13:47 ` [PATCH net-next 10/10] net: stmmac: Try to get C45 PHY if everything else fails Jose Abreu
2019-06-26 20:01   ` Andrew Lunn
2019-06-27  7:54     ` Jose Abreu
2019-06-27 13:23       ` Andrew Lunn
2019-06-27 13:33         ` Jose Abreu
2019-06-27 14:03           ` Andrew Lunn
2019-06-28  7:27             ` Jose Abreu

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