netdev - [PATCH net 4/7] net: stmmac: Fix priority steering for tx/rx queue >3

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Date:   Tue, 14 Jan 2020 10:01:13 +0800
From:   Ong Boon Leong <boon.leong.ong@...el.com>
To:     netdev@...r.kernel.org
Cc:     Jose Abreu <Jose.Abreu@...opsys.com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        "David S . Miller" <davem@...emloft.net>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Ong Boon Leong <boon.leong.ong@...el.com>,
        Tan Tee Min <tee.min.tan@...el.com>,
        Voon Weifeng <weifeng.voon@...el.com>,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH net 4/7] net: stmmac: Fix priority steering for tx/rx queue >3

From: Voon Weifeng <weifeng.voon@...el.com>

Fix MACRO function define for TX and RX user priority queue steering for
register masking and shifting.

Fixes: a8f5102af2a7 ("net: stmmac: TX and RX queue priority configuration")

Signed-off-by: Voon Weifeng <weifeng.voon@...el.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@...el.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac4.h | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
index 2dc70d1..798a53a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h
@@ -97,12 +97,14 @@
 #define GMAC_RX_FLOW_CTRL_RFE		BIT(0)
 
 /* RX Queues Priorities */
-#define GMAC_RXQCTRL_PSRQX_MASK(x)	GENMASK(7 + ((x) * 8), 0 + ((x) * 8))
-#define GMAC_RXQCTRL_PSRQX_SHIFT(x)	((x) * 8)
+#define GMAC_RXQCTRL_PSRQX_MASK(x)	GENMASK(7 + (((x) % 4) * 8), \
+						0 + (((x) % 4) * 8))
+#define GMAC_RXQCTRL_PSRQX_SHIFT(x)	(((x) % 4) * 8)
 
 /* TX Queues Priorities */
-#define GMAC_TXQCTRL_PSTQX_MASK(x)	GENMASK(7 + ((x) * 8), 0 + ((x) * 8))
-#define GMAC_TXQCTRL_PSTQX_SHIFT(x)	((x) * 8)
+#define GMAC_TXQCTRL_PSTQX_MASK(x)	GENMASK(7 + (((x) % 4) * 8), \
+						0 + (((x) % 4) * 8))
+#define GMAC_TXQCTRL_PSTQX_SHIFT(x)	(((x) % 4) * 8)
 
 /* MAC Flow Control TX */
 #define GMAC_TX_FLOW_CTRL_TFE		BIT(1)
-- 
2.7.4