linux-kernel - [PATCH] net: fec: only clear interrupt of handling queue in fec_enet_rx

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Message-Id: <20211206090553.28615-1-qiangqing.zhang@nxp.com>
Date:   Mon,  6 Dec 2021 17:05:53 +0800
From:   Joakim Zhang <qiangqing.zhang@....com>
To:     davem@...emloft.net, kuba@...nel.org, nicolas.diaz@....com,
        rmk+kernel@....linux.org.uk
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-imx@....com, andrew@...n.ch
Subject: [PATCH] net: fec: only clear interrupt of handling queue in fec_enet_rx_queue()

Only clear interrupt of handling queue in fec_enet_rx_queue(), to avoid
missing packets caused by clear interrupt of other queues.

Signed-off-by: Joakim Zhang <qiangqing.zhang@....com>
---
 drivers/net/ethernet/freescale/fec_main.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 09df434b2f87..eeefed3043ad 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1506,7 +1506,12 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id)
 			break;
 		pkt_received++;
 
-		writel(FEC_ENET_RXF, fep->hwp + FEC_IEVENT);
+		if (queue_id == 0)
+			writel(FEC_ENET_RXF_0, fep->hwp + FEC_IEVENT);
+		else if (queue_id == 1)
+			writel(FEC_ENET_RXF_1, fep->hwp + FEC_IEVENT);
+		else
+			writel(FEC_ENET_RXF_2, fep->hwp + FEC_IEVENT);
 
 		/* Check for errors. */
 		status ^= BD_ENET_RX_LAST;
-- 
2.17.1