Merge branch 'add-wed-support-for-mt7988-chipset'

Lorenzo Bianconi says:

====================
Add WED support for MT7988 chipset

Similar to MT7622 and MT7986, introduce Wireless Ethernet Dispatcher (WED)
support for MT7988 chipset in order to offload to the hw packet engine traffic
received from LAN/WAN device to WLAN nic (MT7996E).
Add WED RX support in order to offload traffic received by WLAN nic to the
wired interfaces (LAN/WAN).
====================

Link: https://lore.kernel.org/r/cover.1695032290.git.lorenzo@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

2 files changed, 72 insertions, 5 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index db3d8429d50d..7e520c14eb8c 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -919,6 +919,7 @@ struct net_device_path {
 			u8 queue;
 			u16 wcid;
 			u8 bss;
+			u8 amsdu;
 		} mtk_wdma;
 	};
 };
diff --git a/include/linux/soc/mediatek/mtk_wed.h b/include/linux/soc/mediatek/mtk_wed.h
index b2b28180dff7..a476648858a6 100644
--- a/include/linux/soc/mediatek/mtk_wed.h
+++ b/include/linux/soc/mediatek/mtk_wed.h
@@ -10,6 +10,7 @@
 
 #define MTK_WED_TX_QUEUES		2
 #define MTK_WED_RX_QUEUES		2
+#define MTK_WED_RX_PAGE_QUEUES		3
 
 #define WED_WO_STA_REC			0x6
 
@@ -45,7 +46,7 @@ enum mtk_wed_wo_cmd {
 	MTK_WED_WO_CMD_WED_END
 };
 
-struct mtk_rxbm_desc {
+struct mtk_wed_bm_desc {
 	__le32 buf0;
 	__le32 token;
 } __packed __aligned(4);
@@ -76,6 +77,11 @@ struct mtk_wed_wo_rx_stats {
 	__le32 rx_drop_cnt;
 };
 
+struct mtk_wed_buf {
+	void *p;
+	dma_addr_t phy_addr;
+};
+
 struct mtk_wed_device {
 #ifdef CONFIG_NET_MEDIATEK_SOC_WED
 	const struct mtk_wed_ops *ops;
@@ -94,17 +100,20 @@ struct mtk_wed_device {
 	struct mtk_wed_ring txfree_ring;
 	struct mtk_wed_ring tx_wdma[MTK_WED_TX_QUEUES];
 	struct mtk_wed_ring rx_wdma[MTK_WED_RX_QUEUES];
+	struct mtk_wed_ring rx_rro_ring[MTK_WED_RX_QUEUES];
+	struct mtk_wed_ring rx_page_ring[MTK_WED_RX_PAGE_QUEUES];
+	struct mtk_wed_ring ind_cmd_ring;
 
 	struct {
 		int size;
-		void **pages;
+		struct mtk_wed_buf *pages;
 		struct mtk_wdma_desc *desc;
 		dma_addr_t desc_phys;
 	} tx_buf_ring;
 
 	struct {
 		int size;
-		struct mtk_rxbm_desc *desc;
+		struct mtk_wed_bm_desc *desc;
 		dma_addr_t desc_phys;
 	} rx_buf_ring;
 
@@ -114,6 +123,13 @@ struct mtk_wed_device {
 		dma_addr_t fdbk_phys;
 	} rro;
 
+	struct {
+		int size;
+		struct mtk_wed_buf *pages;
+		struct mtk_wed_bm_desc *desc;
+		dma_addr_t desc_phys;
+	} hw_rro;
+
 	/* filled by driver: */
 	struct {
 		union {
@@ -123,6 +139,7 @@ struct mtk_wed_device {
 		enum mtk_wed_bus_tye bus_type;
 		void __iomem *base;
 		u32 phy_base;
+		u32 id;
 
 		u32 wpdma_phys;
 		u32 wpdma_int;
@@ -131,18 +148,35 @@ struct mtk_wed_device {
 		u32 wpdma_txfree;
 		u32 wpdma_rx_glo;
 		u32 wpdma_rx;
+		u32 wpdma_rx_rro[MTK_WED_RX_QUEUES];
+		u32 wpdma_rx_pg;
 
 		bool wcid_512;
+		bool hw_rro;
+		bool msi;
 
 		u16 token_start;
 		unsigned int nbuf;
 		unsigned int rx_nbuf;
 		unsigned int rx_npkt;
 		unsigned int rx_size;
+		unsigned int amsdu_max_len;
 
 		u8 tx_tbit[MTK_WED_TX_QUEUES];
 		u8 rx_tbit[MTK_WED_RX_QUEUES];
+		u8 rro_rx_tbit[MTK_WED_RX_QUEUES];
+		u8 rx_pg_tbit[MTK_WED_RX_PAGE_QUEUES];
 		u8 txfree_tbit;
+		u8 amsdu_max_subframes;
+
+		struct {
+			u8 se_group_nums;
+			u16 win_size;
+			u16 particular_sid;
+			u32 ack_sn_addr;
+			dma_addr_t particular_se_phys;
+			dma_addr_t addr_elem_phys[1024];
+		} ind_cmd;
 
 		u32 (*init_buf)(void *ptr, dma_addr_t phys, int token_id);
 		int (*offload_enable)(struct mtk_wed_device *wed);
@@ -182,6 +216,14 @@ struct mtk_wed_ops {
 	void (*irq_set_mask)(struct mtk_wed_device *dev, u32 mask);
 	int (*setup_tc)(struct mtk_wed_device *wed, struct net_device *dev,
 			enum tc_setup_type type, void *type_data);
+	void (*start_hw_rro)(struct mtk_wed_device *dev, u32 irq_mask,
+			     bool reset);
+	void (*rro_rx_ring_setup)(struct mtk_wed_device *dev, int ring,
+				  void __iomem *regs);
+	void (*msdu_pg_rx_ring_setup)(struct mtk_wed_device *dev, int ring,
+				      void __iomem *regs);
+	int (*ind_rx_ring_setup)(struct mtk_wed_device *dev,
+				 void __iomem *regs);
 };
 
 extern const struct mtk_wed_ops __rcu *mtk_soc_wed_ops;
@@ -206,16 +248,27 @@ mtk_wed_device_attach(struct mtk_wed_device *dev)
 	return ret;
 }
 
-static inline bool
-mtk_wed_get_rx_capa(struct mtk_wed_device *dev)
+static inline bool mtk_wed_get_rx_capa(struct mtk_wed_device *dev)
 {
 #ifdef CONFIG_NET_MEDIATEK_SOC_WED
+	if (dev->version == 3)
+		return dev->wlan.hw_rro;
+
 	return dev->version != 1;
 #else
 	return false;
 #endif
 }
 
+static inline bool mtk_wed_is_amsdu_supported(struct mtk_wed_device *dev)
+{
+#ifdef CONFIG_NET_MEDIATEK_SOC_WED
+	return dev->version == 3;
+#else
+	return false;
+#endif
+}
+
 #ifdef CONFIG_NET_MEDIATEK_SOC_WED
 #define mtk_wed_device_active(_dev) !!(_dev)->ops
 #define mtk_wed_device_detach(_dev) (_dev)->ops->detach(_dev)
@@ -242,6 +295,15 @@ mtk_wed_get_rx_capa(struct mtk_wed_device *dev)
 #define mtk_wed_device_dma_reset(_dev) (_dev)->ops->reset_dma(_dev)
 #define mtk_wed_device_setup_tc(_dev, _netdev, _type, _type_data) \
 	(_dev)->ops->setup_tc(_dev, _netdev, _type, _type_data)
+#define mtk_wed_device_start_hw_rro(_dev, _mask, _reset) \
+	(_dev)->ops->start_hw_rro(_dev, _mask, _reset)
+#define mtk_wed_device_rro_rx_ring_setup(_dev, _ring, _regs) \
+	(_dev)->ops->rro_rx_ring_setup(_dev, _ring, _regs)
+#define mtk_wed_device_msdu_pg_rx_ring_setup(_dev, _ring, _regs) \
+	(_dev)->ops->msdu_pg_rx_ring_setup(_dev, _ring, _regs)
+#define mtk_wed_device_ind_rx_ring_setup(_dev, _regs) \
+	(_dev)->ops->ind_rx_ring_setup(_dev, _regs)
+
 #else
 static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
 {
@@ -261,6 +323,10 @@ static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
 #define mtk_wed_device_stop(_dev) do {} while (0)
 #define mtk_wed_device_dma_reset(_dev) do {} while (0)
 #define mtk_wed_device_setup_tc(_dev, _netdev, _type, _type_data) -EOPNOTSUPP
+#define mtk_wed_device_start_hw_rro(_dev, _mask, _reset) do {} while (0)
+#define mtk_wed_device_rro_rx_ring_setup(_dev, _ring, _regs) -ENODEV
+#define mtk_wed_device_msdu_pg_rx_ring_setup(_dev, _ring, _regs) -ENODEV
+#define mtk_wed_device_ind_rx_ring_setup(_dev, _regs) -ENODEV
 #endif
 
 #endif