net: stmmac: FPE via ethtool + tc

index 7e90f34b8c88..68574798c03f 100644
@@ -28,6 +28,8 @@
 struct stmmac_extra_stats;
 struct stmmac_priv;
 struct stmmac_safety_stats;
+struct stmmac_fpe_cfg;
+enum stmmac_mpacket_type;
 struct dma_desc;
 struct dma_extended_desc;
 struct dma_edesc;

index b23b920eedb1..458d6b16ce21 100644
@@ -146,6 +146,33 @@ struct stmmac_channel {
 	u32 index;
 };
 
+/* FPE link state */
+enum stmmac_fpe_state {
+	FPE_STATE_OFF = 0,
+	FPE_STATE_CAPABLE = 1,
+	FPE_STATE_ENTERING_ON = 2,
+	FPE_STATE_ON = 3,
+};
+
+/* FPE link-partner hand-shaking mPacket type */
+enum stmmac_mpacket_type {
+	MPACKET_VERIFY = 0,
+	MPACKET_RESPONSE = 1,
+};
+
+enum stmmac_fpe_task_state_t {
+	__FPE_REMOVING,
+	__FPE_TASK_SCHED,
+};
+
+struct stmmac_fpe_cfg {
+	bool enable;				/* FPE enable */
+	bool hs_enable;				/* FPE handshake enable */
+	enum stmmac_fpe_state lp_fpe_state;	/* Link Partner FPE state */
+	enum stmmac_fpe_state lo_fpe_state;	/* Local station FPE state */
+	u32 fpe_csr;				/* MAC_FPE_CTRL_STS reg cache */
+};
+
 struct stmmac_tc_entry {
 	bool in_use;
 	bool in_hw;

@@ -339,11 +366,12 @@ struct stmmac_priv {
 	struct workqueue_struct *wq;
 	struct work_struct service_task;
 
-	/* Workqueue for handling FPE hand-shaking */
+	/* Frame Preemption feature (FPE) */
 	unsigned long fpe_task_state;
 	struct workqueue_struct *fpe_wq;
 	struct work_struct fpe_task;
 	char wq_name[IFNAMSIZ + 4];
+	struct stmmac_fpe_cfg fpe_cfg;
 
 	/* TC Handling */
 	unsigned int tc_entries_max;

index d9fca8d1227c..529fe31f8b04 100644
@@ -968,7 +968,7 @@ static void stmmac_mac_config(struct phylink_config *config, unsigned int mode,
 
 static void stmmac_fpe_link_state_handle(struct stmmac_priv *priv, bool is_up)
 {
-	struct stmmac_fpe_cfg *fpe_cfg = priv->plat->fpe_cfg;
+	struct stmmac_fpe_cfg *fpe_cfg = &priv->fpe_cfg;
 	enum stmmac_fpe_state *lo_state = &fpe_cfg->lo_fpe_state;
 	enum stmmac_fpe_state *lp_state = &fpe_cfg->lp_fpe_state;
 	bool *hs_enable = &fpe_cfg->hs_enable;

@@ -3536,7 +3536,7 @@ static int stmmac_hw_setup(struct net_device *dev, bool ptp_register)
 	if (priv->dma_cap.fpesel) {
 		stmmac_fpe_start_wq(priv);
 
-		if (priv->plat->fpe_cfg->enable)
+		if (priv->fpe_cfg.enable)
 			stmmac_fpe_handshake(priv, true);
 	}
 

@@ -5982,7 +5982,7 @@ static int stmmac_set_features(struct net_device *netdev,
 
 static void stmmac_fpe_event_status(struct stmmac_priv *priv, int status)
 {
-	struct stmmac_fpe_cfg *fpe_cfg = priv->plat->fpe_cfg;
+	struct stmmac_fpe_cfg *fpe_cfg = &priv->fpe_cfg;
 	enum stmmac_fpe_state *lo_state = &fpe_cfg->lo_fpe_state;
 	enum stmmac_fpe_state *lp_state = &fpe_cfg->lp_fpe_state;
 	bool *hs_enable = &fpe_cfg->hs_enable;

@@ -7381,7 +7381,7 @@ static void stmmac_fpe_lp_task(struct work_struct *work)
 {
 	struct stmmac_priv *priv = container_of(work, struct stmmac_priv,
 						fpe_task);
-	struct stmmac_fpe_cfg *fpe_cfg = priv->plat->fpe_cfg;
+	struct stmmac_fpe_cfg *fpe_cfg = &priv->fpe_cfg;
 	enum stmmac_fpe_state *lo_state = &fpe_cfg->lo_fpe_state;
 	enum stmmac_fpe_state *lp_state = &fpe_cfg->lp_fpe_state;
 	bool *hs_enable = &fpe_cfg->hs_enable;

@@ -7427,17 +7427,17 @@ static void stmmac_fpe_lp_task(struct work_struct *work)
 
 void stmmac_fpe_handshake(struct stmmac_priv *priv, bool enable)
 {
-	if (priv->plat->fpe_cfg->hs_enable != enable) {
+	if (priv->fpe_cfg.hs_enable != enable) {
 		if (enable) {
 			stmmac_fpe_send_mpacket(priv, priv->ioaddr,
-						priv->plat->fpe_cfg,
+						&priv->fpe_cfg,
 						MPACKET_VERIFY);
 		} else {
-			priv->plat->fpe_cfg->lo_fpe_state = FPE_STATE_OFF;
-			priv->plat->fpe_cfg->lp_fpe_state = FPE_STATE_OFF;
+			priv->fpe_cfg.lo_fpe_state = FPE_STATE_OFF;
+			priv->fpe_cfg.lp_fpe_state = FPE_STATE_OFF;
 		}
 
-		priv->plat->fpe_cfg->hs_enable = enable;
+		priv->fpe_cfg.hs_enable = enable;
 	}
 }
 

@@ -7898,7 +7898,7 @@ int stmmac_suspend(struct device *dev)
 	if (priv->dma_cap.fpesel) {
 		/* Disable FPE */
 		stmmac_fpe_configure(priv, priv->ioaddr,
-				     priv->plat->fpe_cfg,
+				     &priv->fpe_cfg,
 				     priv->plat->tx_queues_to_use,
 				     priv->plat->rx_queues_to_use, false);
 

index 996f2bcd07a2..9cc41ed01882 100644
@@ -282,16 +282,6 @@ static int tc_init(struct stmmac_priv *priv)
 	if (ret)
 		return -ENOMEM;
 
-	if (!priv->plat->fpe_cfg) {
-		priv->plat->fpe_cfg = devm_kzalloc(priv->device,
-						   sizeof(*priv->plat->fpe_cfg),
-						   GFP_KERNEL);
-		if (!priv->plat->fpe_cfg)
-			return -ENOMEM;
-	} else {
-		memset(priv->plat->fpe_cfg, 0, sizeof(*priv->plat->fpe_cfg));
-	}
-
 	/* Fail silently as we can still use remaining features, e.g. CBS */
 	if (!dma_cap->frpsel)
 		return 0;

@@ -1076,7 +1066,7 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 	/* Actual FPE register configuration will be done after FPE handshake
 	 * is success.
 	 */
-	priv->plat->fpe_cfg->enable = fpe;
+	priv->fpe_cfg.enable = fpe;
 
 	ret = stmmac_est_configure(priv, priv, priv->est,
 				   priv->plat->clk_ptp_rate);

@@ -1109,9 +1099,9 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 		mutex_unlock(&priv->est_lock);
 	}
 
-	priv->plat->fpe_cfg->enable = false;
+	priv->fpe_cfg.enable = false;
 	stmmac_fpe_configure(priv, priv->ioaddr,
-			     priv->plat->fpe_cfg,
+			     &priv->fpe_cfg,
 			     priv->plat->tx_queues_to_use,
 			     priv->plat->rx_queues_to_use,
 			     false);

index 338991c08f00..d79ff252cfdc 100644
@@ -138,33 +138,6 @@ struct stmmac_txq_cfg {
 	int tbs_en;
 };
 
-/* FPE link state */
-enum stmmac_fpe_state {
-	FPE_STATE_OFF = 0,
-	FPE_STATE_CAPABLE = 1,
-	FPE_STATE_ENTERING_ON = 2,
-	FPE_STATE_ON = 3,
-};
-
-/* FPE link-partner hand-shaking mPacket type */
-enum stmmac_mpacket_type {
-	MPACKET_VERIFY = 0,
-	MPACKET_RESPONSE = 1,
-};
-
-enum stmmac_fpe_task_state_t {
-	__FPE_REMOVING,
-	__FPE_TASK_SCHED,
-};
-
-struct stmmac_fpe_cfg {
-	bool enable;				/* FPE enable */
-	bool hs_enable;				/* FPE handshake enable */
-	enum stmmac_fpe_state lp_fpe_state;	/* Link Partner FPE state */
-	enum stmmac_fpe_state lo_fpe_state;	/* Local station FPE state */
-	u32 fpe_csr;				/* MAC_FPE_CTRL_STS reg cache */
-};
-
 struct stmmac_safety_feature_cfg {
 	u32 tsoee;
 	u32 mrxpee;

@@ -232,7 +205,6 @@ struct plat_stmmacenet_data {
 	struct fwnode_handle *port_node;
 	struct device_node *mdio_node;
 	struct stmmac_dma_cfg *dma_cfg;
-	struct stmmac_fpe_cfg *fpe_cfg;
 	struct stmmac_safety_feature_cfg *safety_feat_cfg;
 	int clk_csr;
 	int has_gmac;

index 458d6b16ce21..3ad182ef8e97 100644
@@ -425,7 +425,6 @@ bool stmmac_eee_init(struct stmmac_priv *priv);
 int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt);
 int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size);
 int stmmac_bus_clks_config(struct stmmac_priv *priv, bool enabled);
-void stmmac_fpe_handshake(struct stmmac_priv *priv, bool enable);
 
 static inline bool stmmac_xdp_is_enabled(struct stmmac_priv *priv)
 {

index 529fe31f8b04..3072ad33b105 100644
@@ -3533,13 +3533,9 @@ static int stmmac_hw_setup(struct net_device *dev, bool ptp_register)
 
 	stmmac_set_hw_vlan_mode(priv, priv->hw);
 
-	if (priv->dma_cap.fpesel) {
+	if (priv->dma_cap.fpesel)
 		stmmac_fpe_start_wq(priv);
 
-		if (priv->fpe_cfg.enable)
-			stmmac_fpe_handshake(priv, true);
-	}
-
 	return 0;
 }
 

@@ -7425,22 +7421,6 @@ static void stmmac_fpe_lp_task(struct work_struct *work)
 	clear_bit(__FPE_TASK_SCHED, &priv->fpe_task_state);
 }
 
-void stmmac_fpe_handshake(struct stmmac_priv *priv, bool enable)
-{
-	if (priv->fpe_cfg.hs_enable != enable) {
-		if (enable) {
-			stmmac_fpe_send_mpacket(priv, priv->ioaddr,
-						&priv->fpe_cfg,
-						MPACKET_VERIFY);
-		} else {
-			priv->fpe_cfg.lo_fpe_state = FPE_STATE_OFF;
-			priv->fpe_cfg.lp_fpe_state = FPE_STATE_OFF;
-		}
-
-		priv->fpe_cfg.hs_enable = enable;
-	}
-}
-
 static int stmmac_xdp_rx_timestamp(const struct xdp_md *_ctx, u64 *timestamp)
 {
 	const struct stmmac_xdp_buff *ctx = (void *)_ctx;

@@ -7902,7 +7882,6 @@ int stmmac_suspend(struct device *dev)
 				     priv->plat->tx_queues_to_use,
 				     priv->plat->rx_queues_to_use, false);
 
-		stmmac_fpe_handshake(priv, false);
 		stmmac_fpe_stop_wq(priv);
 	}
 

index 9cc41ed01882..b0cc45331ff7 100644
@@ -1078,11 +1078,6 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 
 	netdev_info(priv->dev, "configured EST\n");
 
-	if (fpe) {
-		stmmac_fpe_handshake(priv, true);
-		netdev_info(priv->dev, "start FPE handshake\n");
-	}
-
 	return 0;
 
 disable:

@@ -1107,9 +1102,6 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 			     false);
 	netdev_info(priv->dev, "disabled FPE\n");
 
-	stmmac_fpe_handshake(priv, false);
-	netdev_info(priv->dev, "stop FPE handshake\n");
-
 	return ret;
 }
 

index 31c387cc5f26..7947b1212a2d 100644
@@ -58,10 +58,6 @@ static void dwmac4_core_init(struct mac_device_info *hw,
 	if (hw->pcs)
 		value |= GMAC_PCS_IRQ_DEFAULT;
 
-	/* Enable FPE interrupt */
-	if ((GMAC_HW_FEAT_FPESEL & readl(ioaddr + GMAC_HW_FEATURE3)) >> 26)
-		value |= GMAC_INT_FPE_EN;
-
 	writel(value, ioaddr + GMAC_INT_EN);
 
 	if (GMAC_INT_DEFAULT_ENABLE & GMAC_INT_TSIE)

index e02cebc3f1b7..850cfc4df6eb 100644
@@ -575,11 +575,11 @@ int dwmac5_flex_pps_config(void __iomem *ioaddr, int index,
 
 void dwmac5_fpe_configure(void __iomem *ioaddr, struct stmmac_fpe_cfg *cfg,
 			  u32 num_txq, u32 num_rxq,
-			  bool enable)
+			  bool tx_enable, bool pmac_enable)
 {
 	u32 value;
 
-	if (enable) {
+	if (tx_enable) {
 		cfg->fpe_csr = EFPE;
 		value = readl(ioaddr + GMAC_RXQ_CTRL1);
 		value &= ~GMAC_RXQCTRL_FPRQ;

@@ -589,6 +589,21 @@ void dwmac5_fpe_configure(void __iomem *ioaddr, struct stmmac_fpe_cfg *cfg,
 		cfg->fpe_csr = 0;
 	}
 	writel(cfg->fpe_csr, ioaddr + MAC_FPE_CTRL_STS);
+
+	value = readl(ioaddr + GMAC_INT_EN);
+
+	if (pmac_enable) {
+		if (!(value & GMAC_INT_FPE_EN)) {
+			/* Dummy read to clear any pending masked interrupts */
+			readl(ioaddr + MAC_FPE_CTRL_STS);
+
+			value |= GMAC_INT_FPE_EN;
+		}
+	} else {
+		value &= ~GMAC_INT_FPE_EN;
+	}
+
+	writel(value, ioaddr + GMAC_INT_EN);
 }
 
 int dwmac5_fpe_irq_status(void __iomem *ioaddr, struct net_device *dev)

index bf33a51d229e..c3031c1357d0 100644
@@ -104,7 +104,7 @@ int dwmac5_flex_pps_config(void __iomem *ioaddr, int index,
 			   u32 sub_second_inc, u32 systime_flags);
 void dwmac5_fpe_configure(void __iomem *ioaddr, struct stmmac_fpe_cfg *cfg,
 			  u32 num_txq, u32 num_rxq,
-			  bool enable);
+			  bool tx_enable, bool pmac_enable);
 void dwmac5_fpe_send_mpacket(void __iomem *ioaddr,
 			     struct stmmac_fpe_cfg *cfg,
 			     enum stmmac_mpacket_type type);

index cbf2dd976ab1..f519d43738b0 100644
@@ -1504,13 +1504,14 @@ 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)
+static void dwxgmac3_fpe_configure(void __iomem *ioaddr,
+				   struct stmmac_fpe_cfg *cfg,
+				   u32 num_txq, u32 num_rxq,
+				   bool tx_enable, bool pmac_enable)
 {
 	u32 value;
 
-	if (!enable) {
+	if (!tx_enable) {
 		value = readl(ioaddr + XGMAC_FPE_CTRL_STS);
 
 		value &= ~XGMAC_EFPE;

index 68574798c03f..4942fc398ea6 100644
@@ -421,7 +421,7 @@ struct stmmac_ops {
 	void (*set_arp_offload)(struct mac_device_info *hw, bool en, u32 addr);
 	void (*fpe_configure)(void __iomem *ioaddr, struct stmmac_fpe_cfg *cfg,
 			      u32 num_txq, u32 num_rxq,
-			      bool enable);
+			      bool tx_enable, bool pmac_enable);
 	void (*fpe_send_mpacket)(void __iomem *ioaddr,
 				 struct stmmac_fpe_cfg *cfg,
 				 enum stmmac_mpacket_type type);

index 3ad182ef8e97..535d1b0c4bbf 100644
@@ -146,31 +146,25 @@ struct stmmac_channel {
 	u32 index;
 };
 
-/* FPE link state */
-enum stmmac_fpe_state {
-	FPE_STATE_OFF = 0,
-	FPE_STATE_CAPABLE = 1,
-	FPE_STATE_ENTERING_ON = 2,
-	FPE_STATE_ON = 3,
-};
-
 /* FPE link-partner hand-shaking mPacket type */
 enum stmmac_mpacket_type {
 	MPACKET_VERIFY = 0,
 	MPACKET_RESPONSE = 1,
 };
 
-enum stmmac_fpe_task_state_t {
-	__FPE_REMOVING,
-	__FPE_TASK_SCHED,
-};
+#define STMMAC_FPE_MM_MAX_VERIFY_RETRIES	3
+#define STMMAC_FPE_MM_MAX_VERIFY_TIME_MS	128
 
 struct stmmac_fpe_cfg {
-	bool enable;				/* FPE enable */
-	bool hs_enable;				/* FPE handshake enable */
-	enum stmmac_fpe_state lp_fpe_state;	/* Link Partner FPE state */
-	enum stmmac_fpe_state lo_fpe_state;	/* Local station FPE state */
+	/* Serialize access to MAC Merge state between ethtool requests
+	 * and link state updates.
+	 */
+	spinlock_t lock;
+
 	u32 fpe_csr;				/* MAC_FPE_CTRL_STS reg cache */
+	struct timer_list verify_timer;
+	struct ethtool_mm_state state;
+	int verify_retries;
 };
 
 struct stmmac_tc_entry {

@@ -367,10 +361,6 @@ struct stmmac_priv {
 	struct work_struct service_task;
 
 	/* Frame Preemption feature (FPE) */
-	unsigned long fpe_task_state;
-	struct workqueue_struct *fpe_wq;
-	struct work_struct fpe_task;
-	char wq_name[IFNAMSIZ + 4];
 	struct stmmac_fpe_cfg fpe_cfg;
 
 	/* TC Handling */

@@ -425,6 +415,7 @@ bool stmmac_eee_init(struct stmmac_priv *priv);
 int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt);
 int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size);
 int stmmac_bus_clks_config(struct stmmac_priv *priv, bool enabled);
+void stmmac_fpe_apply(struct stmmac_priv *priv);
 
 static inline bool stmmac_xdp_is_enabled(struct stmmac_priv *priv)
 {

337 lines not on this page · raw message

index b0cc45331ff7..a58282d6458c 100644
@@ -1063,11 +1063,6 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 		return -EOPNOTSUPP;
 	}
 
-	/* Actual FPE register configuration will be done after FPE handshake
-	 * is success.
-	 */
-	priv->fpe_cfg.enable = fpe;
-
 	ret = stmmac_est_configure(priv, priv, priv->est,
 				   priv->plat->clk_ptp_rate);
 	mutex_unlock(&priv->est_lock);

@@ -1094,12 +1089,11 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 		mutex_unlock(&priv->est_lock);
 	}
 
-	priv->fpe_cfg.enable = false;
 	stmmac_fpe_configure(priv, priv->ioaddr,
 			     &priv->fpe_cfg,
 			     priv->plat->tx_queues_to_use,
 			     priv->plat->rx_queues_to_use,
-			     false);
+			     false, false);
 	netdev_info(priv->dev, "disabled FPE\n");
 
 	return ret;

index 7947b1212a2d..679efcc631f1 100644
@@ -1264,6 +1264,8 @@ const struct stmmac_ops dwmac410_ops = {
 	.fpe_configure = dwmac5_fpe_configure,
 	.fpe_send_mpacket = dwmac5_fpe_send_mpacket,
 	.fpe_irq_status = dwmac5_fpe_irq_status,
+	.fpe_get_add_frag_size = dwmac5_fpe_get_add_frag_size,
+	.fpe_set_add_frag_size = dwmac5_fpe_set_add_frag_size,
 	.add_hw_vlan_rx_fltr = dwmac4_add_hw_vlan_rx_fltr,
 	.del_hw_vlan_rx_fltr = dwmac4_del_hw_vlan_rx_fltr,
 	.restore_hw_vlan_rx_fltr = dwmac4_restore_hw_vlan_rx_fltr,

@@ -1316,6 +1318,8 @@ const struct stmmac_ops dwmac510_ops = {
 	.fpe_configure = dwmac5_fpe_configure,
 	.fpe_send_mpacket = dwmac5_fpe_send_mpacket,
 	.fpe_irq_status = dwmac5_fpe_irq_status,
+	.fpe_get_add_frag_size = dwmac5_fpe_get_add_frag_size,
+	.fpe_set_add_frag_size = dwmac5_fpe_set_add_frag_size,
 	.add_hw_vlan_rx_fltr = dwmac4_add_hw_vlan_rx_fltr,
 	.del_hw_vlan_rx_fltr = dwmac4_del_hw_vlan_rx_fltr,
 	.restore_hw_vlan_rx_fltr = dwmac4_restore_hw_vlan_rx_fltr,

index 850cfc4df6eb..db7bbc50cfae 100644
@@ -653,3 +653,17 @@ void dwmac5_fpe_send_mpacket(void __iomem *ioaddr, struct stmmac_fpe_cfg *cfg,
 
 	writel(value, ioaddr + MAC_FPE_CTRL_STS);
 }
+
+int dwmac5_fpe_get_add_frag_size(const void __iomem *ioaddr)
+{
+	return FIELD_GET(DWMAC5_ADD_FRAG_SZ, readl(ioaddr + MTL_FPE_CTRL_STS));
+}
+
+void dwmac5_fpe_set_add_frag_size(void __iomem *ioaddr, u32 add_frag_size)
+{
+	u32 value;
+
+	value = readl(ioaddr + MTL_FPE_CTRL_STS);
+	writel(u32_replace_bits(value, add_frag_size, DWMAC5_ADD_FRAG_SZ),
+	       ioaddr + MTL_FPE_CTRL_STS);
+}

index c3031c1357d0..58704c15f320 100644
@@ -39,6 +39,10 @@
 #define MAC_PPSx_INTERVAL(x)		(0x00000b88 + ((x) * 0x10))
 #define MAC_PPSx_WIDTH(x)		(0x00000b8c + ((x) * 0x10))
 
+#define MTL_FPE_CTRL_STS		0x00000c90
+/* Additional Fragment Size of preempted frames */
+#define DWMAC5_ADD_FRAG_SZ		GENMASK(1, 0)
+
 #define MTL_RXP_CONTROL_STATUS		0x00000ca0
 #define RXPI				BIT(31)
 #define NPE				GENMASK(23, 16)

@@ -109,5 +113,7 @@ void dwmac5_fpe_send_mpacket(void __iomem *ioaddr,
 			     struct stmmac_fpe_cfg *cfg,
 			     enum stmmac_mpacket_type type);
 int dwmac5_fpe_irq_status(void __iomem *ioaddr, struct net_device *dev);
+int dwmac5_fpe_get_add_frag_size(const void __iomem *ioaddr);
+void dwmac5_fpe_set_add_frag_size(void __iomem *ioaddr, u32 add_frag_size);
 
 #endif /* __DWMAC5_H__ */

index 4942fc398ea6..f080e271f7af 100644
@@ -426,6 +426,8 @@ struct stmmac_ops {
 				 struct stmmac_fpe_cfg *cfg,
 				 enum stmmac_mpacket_type type);
 	int (*fpe_irq_status)(void __iomem *ioaddr, struct net_device *dev);
+	int (*fpe_get_add_frag_size)(const void __iomem *ioaddr);
+	void (*fpe_set_add_frag_size)(void __iomem *ioaddr, u32 add_frag_size);
 };
 
 #define stmmac_core_init(__priv, __args...) \

@@ -530,6 +532,10 @@ struct stmmac_ops {
 	stmmac_do_void_callback(__priv, mac, fpe_send_mpacket, __args)
 #define stmmac_fpe_irq_status(__priv, __args...) \
 	stmmac_do_callback(__priv, mac, fpe_irq_status, __args)
+#define stmmac_fpe_get_add_frag_size(__priv, __args...) \
+	stmmac_do_callback(__priv, mac, fpe_get_add_frag_size, __args)
+#define stmmac_fpe_set_add_frag_size(__priv, __args...) \
+	stmmac_do_void_callback(__priv, mac, fpe_set_add_frag_size, __args)
 
 /* PTP and HW Timer helpers */
 struct stmmac_hwtimestamp {

109 lines not on this page · raw message

index 679efcc631f1..a1858f083eef 100644
@@ -1266,6 +1266,7 @@ const struct stmmac_ops dwmac410_ops = {
 	.fpe_irq_status = dwmac5_fpe_irq_status,
 	.fpe_get_add_frag_size = dwmac5_fpe_get_add_frag_size,
 	.fpe_set_add_frag_size = dwmac5_fpe_set_add_frag_size,
+	.fpe_map_preemption_class = dwmac5_fpe_map_preemption_class,
 	.add_hw_vlan_rx_fltr = dwmac4_add_hw_vlan_rx_fltr,
 	.del_hw_vlan_rx_fltr = dwmac4_del_hw_vlan_rx_fltr,
 	.restore_hw_vlan_rx_fltr = dwmac4_restore_hw_vlan_rx_fltr,

@@ -1320,6 +1321,7 @@ const struct stmmac_ops dwmac510_ops = {
 	.fpe_irq_status = dwmac5_fpe_irq_status,
 	.fpe_get_add_frag_size = dwmac5_fpe_get_add_frag_size,
 	.fpe_set_add_frag_size = dwmac5_fpe_set_add_frag_size,
+	.fpe_map_preemption_class = dwmac5_fpe_map_preemption_class,
 	.add_hw_vlan_rx_fltr = dwmac4_add_hw_vlan_rx_fltr,
 	.del_hw_vlan_rx_fltr = dwmac4_del_hw_vlan_rx_fltr,
 	.restore_hw_vlan_rx_fltr = dwmac4_restore_hw_vlan_rx_fltr,

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index 58704c15f320..6c6eb6790e83 100644
@@ -40,6 +40,8 @@
 #define MAC_PPSx_WIDTH(x)		(0x00000b8c + ((x) * 0x10))
 
 #define MTL_FPE_CTRL_STS		0x00000c90
+/* Preemption Classification */
+#define DWMAC5_PREEMPTION_CLASS		GENMASK(15, 8)
 /* Additional Fragment Size of preempted frames */
 #define DWMAC5_ADD_FRAG_SZ		GENMASK(1, 0)
 

@@ -115,5 +117,7 @@ void dwmac5_fpe_send_mpacket(void __iomem *ioaddr,
 int dwmac5_fpe_irq_status(void __iomem *ioaddr, struct net_device *dev);
 int dwmac5_fpe_get_add_frag_size(const void __iomem *ioaddr);
 void dwmac5_fpe_set_add_frag_size(void __iomem *ioaddr, u32 add_frag_size);
+int dwmac5_fpe_map_preemption_class(struct net_device *ndev,
+				    struct netlink_ext_ack *extack, u32 pclass);
 
 #endif /* __DWMAC5_H__ */

index 29367105df54..a7f25bef83b1 100644
@@ -252,7 +252,7 @@ static const struct stmmac_hwif_entry {
 		.mac = &dwxgmac210_ops,
 		.hwtimestamp = &stmmac_ptp,
 		.mode = NULL,
-		.tc = &dwmac510_tc_ops,
+		.tc = &dwxgmac_tc_ops,
 		.mmc = &dwxgmac_mmc_ops,
 		.est = &dwmac510_est_ops,
 		.setup = dwxgmac2_setup,

@@ -273,7 +273,7 @@ static const struct stmmac_hwif_entry {
 		.mac = &dwxlgmac2_ops,
 		.hwtimestamp = &stmmac_ptp,
 		.mode = NULL,
-		.tc = &dwmac510_tc_ops,
+		.tc = &dwxgmac_tc_ops,
 		.mmc = &dwxgmac_mmc_ops,
 		.est = &dwmac510_est_ops,
 		.setup = dwxlgmac2_setup,

index f080e271f7af..c2746c0662af 100644
@@ -7,6 +7,7 @@
 
 #include <linux/netdevice.h>
 #include <linux/stmmac.h>
+#include <net/pkt_cls.h>
 
 #define stmmac_do_void_callback(__priv, __module, __cname,  __arg0, __args...) \
 ({ \

@@ -428,6 +429,9 @@ struct stmmac_ops {
 	int (*fpe_irq_status)(void __iomem *ioaddr, struct net_device *dev);
 	int (*fpe_get_add_frag_size)(const void __iomem *ioaddr);
 	void (*fpe_set_add_frag_size)(void __iomem *ioaddr, u32 add_frag_size);
+	int (*fpe_map_preemption_class)(struct net_device *ndev,
+					struct netlink_ext_ack *extack,
+					u32 pclass);
 };
 
 #define stmmac_core_init(__priv, __args...) \

@@ -536,6 +540,8 @@ struct stmmac_ops {
 	stmmac_do_callback(__priv, mac, fpe_get_add_frag_size, __args)
 #define stmmac_fpe_set_add_frag_size(__priv, __args...) \
 	stmmac_do_void_callback(__priv, mac, fpe_set_add_frag_size, __args)
+#define stmmac_fpe_map_preemption_class(__priv, __args...) \
+	stmmac_do_void_callback(__priv, mac, fpe_map_preemption_class, __args)
 
 /* PTP and HW Timer helpers */
 struct stmmac_hwtimestamp {

@@ -623,6 +629,8 @@ struct stmmac_tc_ops {
 			 struct tc_etf_qopt_offload *qopt);
 	int (*query_caps)(struct stmmac_priv *priv,
 			  struct tc_query_caps_base *base);
+	int (*setup_mqprio)(struct stmmac_priv *priv,
+			    struct tc_mqprio_qopt_offload *qopt);
 };
 
 #define stmmac_tc_init(__priv, __args...) \

@@ -639,6 +647,8 @@ struct stmmac_tc_ops {
 	stmmac_do_callback(__priv, tc, setup_etf, __args)
 #define stmmac_tc_query_caps(__priv, __args...) \
 	stmmac_do_callback(__priv, tc, query_caps, __args)
+#define stmmac_tc_setup_mqprio(__priv, __args...) \
+	stmmac_do_callback(__priv, tc, setup_mqprio, __args)
 
 struct stmmac_counters;
 

@@ -683,6 +693,7 @@ extern const struct stmmac_ops dwmac410_ops;
 extern const struct stmmac_dma_ops dwmac410_dma_ops;
 extern const struct stmmac_ops dwmac510_ops;
 extern const struct stmmac_tc_ops dwmac510_tc_ops;
+extern const struct stmmac_tc_ops dwxgmac_tc_ops;
 extern const struct stmmac_ops dwxgmac210_ops;
 extern const struct stmmac_ops dwxlgmac2_ops;
 extern const struct stmmac_dma_ops dwxgmac210_dma_ops;

index e2f933353f40..6772c16c48e2 100644
@@ -6216,6 +6216,8 @@ static int stmmac_setup_tc(struct net_device *ndev, enum tc_setup_type type,
 	switch (type) {
 	case TC_QUERY_CAPS:
 		return stmmac_tc_query_caps(priv, priv, type_data);
+	case TC_SETUP_QDISC_MQPRIO:
+		return stmmac_tc_setup_mqprio(priv, priv, type_data);
 	case TC_SETUP_BLOCK:
 		return flow_block_cb_setup_simple(type_data,
 						  &stmmac_block_cb_list,

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index 9ec2e6ab81aa..2bdb22e175bc 100644
@@ -931,9 +931,9 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 			       struct tc_taprio_qopt_offload *qopt)
 {
 	u32 size, wid = priv->dma_cap.estwid, dep = priv->dma_cap.estdep;
+	struct netlink_ext_ack *extack = qopt->mqprio.extack;
 	struct timespec64 time, current_time, qopt_time;
 	ktime_t current_time_ns;
-	bool fpe = false;
 	int i, ret = 0;
 	u64 ctr;
 

@@ -1018,16 +1018,12 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 
 		switch (qopt->entries[i].command) {
 		case TC_TAPRIO_CMD_SET_GATES:
-			if (fpe)
-				return -EINVAL;
 			break;
 		case TC_TAPRIO_CMD_SET_AND_HOLD:
 			gates |= BIT(0);
-			fpe = true;
 			break;
 		case TC_TAPRIO_CMD_SET_AND_RELEASE:
 			gates &= ~BIT(0);
-			fpe = true;
 			break;
 		default:
 			return -EOPNOTSUPP;

@@ -1058,11 +1054,6 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 
 	tc_taprio_map_maxsdu_txq(priv, qopt);
 
-	if (fpe && !priv->dma_cap.fpesel) {
-		mutex_unlock(&priv->est_lock);
-		return -EOPNOTSUPP;
-	}
-
 	ret = stmmac_est_configure(priv, priv, priv->est,
 				   priv->plat->clk_ptp_rate);
 	mutex_unlock(&priv->est_lock);

@@ -1071,6 +1062,11 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 		goto disable;
 	}
 
+	ret = stmmac_fpe_map_preemption_class(priv, priv->dev, extack,
+					      qopt->mqprio.preemptible_tcs);
+	if (ret)
+		goto disable;
+
 	netdev_info(priv->dev, "configured EST\n");
 
 	return 0;

@@ -1089,11 +1085,8 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 		mutex_unlock(&priv->est_lock);
 	}
 
-	stmmac_fpe_configure(priv, priv->ioaddr,
-			     &priv->fpe_cfg,
-			     priv->plat->tx_queues_to_use,
-			     priv->plat->rx_queues_to_use,
-			     false, false);
+	stmmac_fpe_map_preemption_class(priv, priv->dev, extack, 0);
+
 	netdev_info(priv->dev, "disabled FPE\n");
 
 	return ret;

index dd9583968962..580c02eaded3 100644
@@ -620,22 +620,22 @@ int dwmac5_fpe_irq_status(void __iomem *ioaddr, struct net_device *dev)
 
 	if (value & TRSP) {
 		status |= FPE_EVENT_TRSP;
-		netdev_info(dev, "FPE: Respond mPacket is transmitted\n");
+		netdev_dbg(dev, "FPE: Respond mPacket is transmitted\n");
 	}
 
 	if (value & TVER) {
 		status |= FPE_EVENT_TVER;
-		netdev_info(dev, "FPE: Verify mPacket is transmitted\n");
+		netdev_dbg(dev, "FPE: Verify mPacket is transmitted\n");
 	}
 
 	if (value & RRSP) {
 		status |= FPE_EVENT_RRSP;
-		netdev_info(dev, "FPE: Respond mPacket is received\n");
+		netdev_dbg(dev, "FPE: Respond mPacket is received\n");
 	}
 
 	if (value & RVER) {
 		status |= FPE_EVENT_RVER;
-		netdev_info(dev, "FPE: Verify mPacket is received\n");
+		netdev_dbg(dev, "FPE: Verify mPacket is received\n");
 	}
 
 	return status;