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Message-Id: <20230816152926.4093-4-jszhang@kernel.org>
Date:   Wed, 16 Aug 2023 23:29:20 +0800
From:   Jisheng Zhang <jszhang@...nel.org>
To:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH net-next v4 3/9] net: stmmac: enlarge max rx/tx queues and channels to 16

xgmac supports up to 16 rx/tx queues and up to 16 channels.

Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
Acked-by: Alexandre TORGUE <alexandre.torgue@...s.st.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c | 5 ++---
 include/linux/stmmac.h                              | 6 +++---
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
index 38782662ff98..8ac994553bc1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
@@ -232,9 +232,8 @@ static void dwxgmac2_map_mtl_to_dma(struct mac_device_info *hw, u32 queue,
 	void __iomem *ioaddr = hw->pcsr;
 	u32 value, reg;
 
-	reg = (queue < 4) ? XGMAC_MTL_RXQ_DMA_MAP0 : XGMAC_MTL_RXQ_DMA_MAP1;
-	if (queue >= 4)
-		queue -= 4;
+	reg = XGMAC_MTL_RXQ_DMA_MAP0 + (queue & ~0x3);
+	queue &= 0x3;
 
 	value = readl(ioaddr + reg);
 	value &= ~XGMAC_QxMDMACH(queue);
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 784277d666eb..9c90e2e295d4 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -15,9 +15,9 @@
 #include <linux/platform_device.h>
 #include <linux/phy.h>
 
-#define MTL_MAX_RX_QUEUES	8
-#define MTL_MAX_TX_QUEUES	8
-#define STMMAC_CH_MAX		8
+#define MTL_MAX_RX_QUEUES	16
+#define MTL_MAX_TX_QUEUES	16
+#define STMMAC_CH_MAX		16
 
 #define STMMAC_RX_COE_NONE	0
 #define STMMAC_RX_COE_TYPE1	1
-- 
2.40.1

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