linux-kernel - [PATCH net] net: macb: fix for pause frame receive enable bit

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Date:   Sat, 5 Sep 2020 10:21:33 +0200
From:   Parshuram Thombare <pthombar@...ence.com>
To:     <nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>
CC:     <claudiu.beznea@...rochip.com>, <antoine.tenart@...tlin.com>,
        <davem@...emloft.net>, <netdev@...r.kernel.org>,
        <f.fainelli@...il.com>, <linux-kernel@...r.kernel.org>,
        <mparab@...ence.com>, Parshuram Thombare <pthombar@...ence.com>
Subject: [PATCH net] net: macb: fix for pause frame receive enable bit

PAE bit of NCFGR register, when set, pauses transmission
if a non-zero 802.3 classic pause frame is received.

Fixes: 7897b071ac3b ("net: macb: convert to phylink")
Signed-off-by: Parshuram Thombare <pthombar@...ence.com>
---
 drivers/net/ethernet/cadence/macb_main.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 6761f40..9179f7b 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -647,8 +647,7 @@ static void macb_mac_link_up(struct phylink_config *config,
 				ctrl |= GEM_BIT(GBE);
 		}
 
-		/* We do not support MLO_PAUSE_RX yet */
-		if (tx_pause)
+		if (rx_pause)
 			ctrl |= MACB_BIT(PAE);
 
 		macb_set_tx_clk(bp->tx_clk, speed, ndev);
-- 
1.7.1