linux-kernel - [PATCH net-next v1 1/7] net: stmmac: xgmac: drop incomplete FPE implementation

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Message-Id: <d142b909d0600b67b9ceadc767c4177be216f5bd.1720512888.git.0x1207@gmail.com>
Date: Tue,  9 Jul 2024 16:21:19 +0800
From: Furong Xu <0x1207@...il.com>
To: Andrew Lunn <andrew@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Jose Abreu <joabreu@...opsys.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Joao Pinto <jpinto@...opsys.com>
Cc: netdev@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	xfr@...look.com,
	rock.xu@....com,
	Furong Xu <0x1207@...il.com>
Subject: [PATCH net-next v1 1/7] net: stmmac: xgmac: drop incomplete FPE implementation

The FPE support for xgmac is incomplete, drop it temporarily.
Once FPE implementation is refactored, xgmac support will be added.

Signed-off-by: Furong Xu <0x1207@...il.com>
---
 .../net/ethernet/stmicro/stmmac/dwxgmac2.h    |  2 --
 .../ethernet/stmicro/stmmac/dwxgmac2_core.c   | 27 -------------------
 2 files changed, 29 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
index 6a2c7d22df1e..917796293c26 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
@@ -193,8 +193,6 @@
 #define XGMAC_MDIO_ADDR			0x00000200
 #define XGMAC_MDIO_DATA			0x00000204
 #define XGMAC_MDIO_C22P			0x00000220
-#define XGMAC_FPE_CTRL_STS		0x00000280
-#define XGMAC_EFPE			BIT(0)
 #define XGMAC_ADDRx_HIGH(x)		(0x00000300 + (x) * 0x8)
 #define XGMAC_ADDR_MAX			32
 #define XGMAC_AE			BIT(31)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
index 6a987cf598e4..e5bc3957041e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
@@ -1505,31 +1505,6 @@ static void dwxgmac2_set_arp_offload(struct mac_device_info *hw, bool en,
 	writel(value, ioaddr + XGMAC_RX_CONFIG);
 }
 
-static void dwxgmac3_fpe_configure(void __iomem *ioaddr, struct stmmac_fpe_cfg *cfg,
-				   u32 num_txq,
-				   u32 num_rxq, bool enable)
-{
-	u32 value;
-
-	if (!enable) {
-		value = readl(ioaddr + XGMAC_FPE_CTRL_STS);
-
-		value &= ~XGMAC_EFPE;
-
-		writel(value, ioaddr + XGMAC_FPE_CTRL_STS);
-		return;
-	}
-
-	value = readl(ioaddr + XGMAC_RXQ_CTRL1);
-	value &= ~XGMAC_RQ;
-	value |= (num_rxq - 1) << XGMAC_RQ_SHIFT;
-	writel(value, ioaddr + XGMAC_RXQ_CTRL1);
-
-	value = readl(ioaddr + XGMAC_FPE_CTRL_STS);
-	value |= XGMAC_EFPE;
-	writel(value, ioaddr + XGMAC_FPE_CTRL_STS);
-}
-
 const struct stmmac_ops dwxgmac210_ops = {
 	.core_init = dwxgmac2_core_init,
 	.set_mac = dwxgmac2_set_mac,
@@ -1570,7 +1545,6 @@ const struct stmmac_ops dwxgmac210_ops = {
 	.config_l3_filter = dwxgmac2_config_l3_filter,
 	.config_l4_filter = dwxgmac2_config_l4_filter,
 	.set_arp_offload = dwxgmac2_set_arp_offload,
-	.fpe_configure = dwxgmac3_fpe_configure,
 };
 
 static void dwxlgmac2_rx_queue_enable(struct mac_device_info *hw, u8 mode,
@@ -1627,7 +1601,6 @@ const struct stmmac_ops dwxlgmac2_ops = {
 	.config_l3_filter = dwxgmac2_config_l3_filter,
 	.config_l4_filter = dwxgmac2_config_l4_filter,
 	.set_arp_offload = dwxgmac2_set_arp_offload,
-	.fpe_configure = dwxgmac3_fpe_configure,
 };
 
 int dwxgmac2_setup(struct stmmac_priv *priv)
-- 
2.34.1