--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
-@@ -1618,6 +1618,7 @@ enum netdev_priv_flags {
+@@ -1625,6 +1625,7 @@ enum netdev_priv_flags {
IFF_FAILOVER_SLAVE = 1<<28,
IFF_L3MDEV_RX_HANDLER = 1<<29,
IFF_LIVE_RENAME_OK = 1<<30,
};
#define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
-@@ -1650,6 +1651,7 @@ enum netdev_priv_flags {
+@@ -1657,6 +1658,7 @@ enum netdev_priv_flags {
#define IFF_FAILOVER_SLAVE IFF_FAILOVER_SLAVE
#define IFF_L3MDEV_RX_HANDLER IFF_L3MDEV_RX_HANDLER
#define IFF_LIVE_RENAME_OK IFF_LIVE_RENAME_OK
/* Specifies the type of the struct net_device::ml_priv pointer */
enum netdev_ml_priv_type {
-@@ -1990,6 +1992,11 @@ struct net_device {
+@@ -1997,6 +1999,11 @@ struct net_device {
const struct tlsdev_ops *tlsdev_ops;
#endif
const struct header_ops *header_ops;
unsigned int flags;
-@@ -2080,6 +2087,10 @@ struct net_device {
+@@ -2087,6 +2094,10 @@ struct net_device {
struct mpls_dev __rcu *mpls_ptr;
#endif
help
--- a/net/core/dev.c
+++ b/net/core/dev.c
-@@ -3646,6 +3646,11 @@ static int xmit_one(struct sk_buff *skb,
+@@ -3650,6 +3650,11 @@ static int xmit_one(struct sk_buff *skb,
if (dev_nit_active(dev))
dev_queue_xmit_nit(skb, dev);
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
-@@ -1648,6 +1648,10 @@ enum netdev_priv_flags {
+@@ -1655,6 +1655,10 @@ enum netdev_priv_flags {
IFF_TX_SKB_NO_LINEAR = 1<<31,
};
#define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
#define IFF_EBRIDGE IFF_EBRIDGE
#define IFF_BONDING IFF_BONDING
-@@ -1680,6 +1684,7 @@ enum netdev_priv_flags {
+@@ -1687,6 +1691,7 @@ enum netdev_priv_flags {
#define IFF_L3MDEV_RX_HANDLER IFF_L3MDEV_RX_HANDLER
#define IFF_LIVE_RENAME_OK IFF_LIVE_RENAME_OK
#define IFF_TX_SKB_NO_LINEAR IFF_TX_SKB_NO_LINEAR
/* Specifies the type of the struct net_device::ml_priv pointer */
enum netdev_ml_priv_type {
-@@ -1981,6 +1986,7 @@ struct net_device {
+@@ -1988,6 +1993,7 @@ struct net_device {
/* Read-mostly cache-line for fast-path access */
unsigned int flags;
unsigned int priv_flags;
const struct net_device_ops *netdev_ops;
int ifindex;
unsigned short gflags;
-@@ -2041,6 +2047,11 @@ struct net_device {
+@@ -2048,6 +2054,11 @@ struct net_device {
const struct tlsdev_ops *tlsdev_ops;
#endif
const struct header_ops *header_ops;
unsigned char operstate;
-@@ -2115,6 +2126,10 @@ struct net_device {
+@@ -2122,6 +2133,10 @@ struct net_device {
struct mctp_dev __rcu *mctp_ptr;
#endif
help
--- a/net/core/dev.c
+++ b/net/core/dev.c
-@@ -3578,6 +3578,11 @@ static int xmit_one(struct sk_buff *skb,
+@@ -3582,6 +3582,11 @@ static int xmit_one(struct sk_buff *skb,
if (dev_nit_active(dev))
dev_queue_xmit_nit(skb, dev);
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 5 Feb 2022 17:59:07 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: add support for coherent
+ DMA
+
+It improves performance by eliminating the need for a cache flush on rx and tx
+In preparation for supporting WED (Wireless Ethernet Dispatch), also add a
+function for disabling coherent DMA at runtime.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -9,6 +9,7 @@
+ #include <linux/of_device.h>
+ #include <linux/of_mdio.h>
+ #include <linux/of_net.h>
++#include <linux/of_address.h>
+ #include <linux/mfd/syscon.h>
+ #include <linux/regmap.h>
+ #include <linux/clk.h>
+@@ -821,7 +822,7 @@ static int mtk_init_fq_dma(struct mtk_et
+ dma_addr_t dma_addr;
+ int i;
+
+- eth->scratch_ring = dma_alloc_coherent(eth->dev,
++ eth->scratch_ring = dma_alloc_coherent(eth->dma_dev,
+ cnt * sizeof(struct mtk_tx_dma),
+ ð->phy_scratch_ring,
+ GFP_ATOMIC);
+@@ -833,10 +834,10 @@ static int mtk_init_fq_dma(struct mtk_et
+ if (unlikely(!eth->scratch_head))
+ return -ENOMEM;
+
+- dma_addr = dma_map_single(eth->dev,
++ dma_addr = dma_map_single(eth->dma_dev,
+ eth->scratch_head, cnt * MTK_QDMA_PAGE_SIZE,
+ DMA_FROM_DEVICE);
+- if (unlikely(dma_mapping_error(eth->dev, dma_addr)))
++ if (unlikely(dma_mapping_error(eth->dma_dev, dma_addr)))
+ return -ENOMEM;
+
+ phy_ring_tail = eth->phy_scratch_ring +
+@@ -890,26 +891,26 @@ static void mtk_tx_unmap(struct mtk_eth
+ {
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) {
+ if (tx_buf->flags & MTK_TX_FLAGS_SINGLE0) {
+- dma_unmap_single(eth->dev,
++ dma_unmap_single(eth->dma_dev,
+ dma_unmap_addr(tx_buf, dma_addr0),
+ dma_unmap_len(tx_buf, dma_len0),
+ DMA_TO_DEVICE);
+ } else if (tx_buf->flags & MTK_TX_FLAGS_PAGE0) {
+- dma_unmap_page(eth->dev,
++ dma_unmap_page(eth->dma_dev,
+ dma_unmap_addr(tx_buf, dma_addr0),
+ dma_unmap_len(tx_buf, dma_len0),
+ DMA_TO_DEVICE);
+ }
+ } else {
+ if (dma_unmap_len(tx_buf, dma_len0)) {
+- dma_unmap_page(eth->dev,
++ dma_unmap_page(eth->dma_dev,
+ dma_unmap_addr(tx_buf, dma_addr0),
+ dma_unmap_len(tx_buf, dma_len0),
+ DMA_TO_DEVICE);
+ }
+
+ if (dma_unmap_len(tx_buf, dma_len1)) {
+- dma_unmap_page(eth->dev,
++ dma_unmap_page(eth->dma_dev,
+ dma_unmap_addr(tx_buf, dma_addr1),
+ dma_unmap_len(tx_buf, dma_len1),
+ DMA_TO_DEVICE);
+@@ -987,9 +988,9 @@ static int mtk_tx_map(struct sk_buff *sk
+ if (skb_vlan_tag_present(skb))
+ txd4 |= TX_DMA_INS_VLAN | skb_vlan_tag_get(skb);
+
+- mapped_addr = dma_map_single(eth->dev, skb->data,
++ mapped_addr = dma_map_single(eth->dma_dev, skb->data,
+ skb_headlen(skb), DMA_TO_DEVICE);
+- if (unlikely(dma_mapping_error(eth->dev, mapped_addr)))
++ if (unlikely(dma_mapping_error(eth->dma_dev, mapped_addr)))
+ return -ENOMEM;
+
+ WRITE_ONCE(itxd->txd1, mapped_addr);
+@@ -1028,10 +1029,10 @@ static int mtk_tx_map(struct sk_buff *sk
+
+
+ frag_map_size = min(frag_size, MTK_TX_DMA_BUF_LEN);
+- mapped_addr = skb_frag_dma_map(eth->dev, frag, offset,
++ mapped_addr = skb_frag_dma_map(eth->dma_dev, frag, offset,
+ frag_map_size,
+ DMA_TO_DEVICE);
+- if (unlikely(dma_mapping_error(eth->dev, mapped_addr)))
++ if (unlikely(dma_mapping_error(eth->dma_dev, mapped_addr)))
+ goto err_dma;
+
+ if (i == nr_frags - 1 &&
+@@ -1309,18 +1310,18 @@ static int mtk_poll_rx(struct napi_struc
+ netdev->stats.rx_dropped++;
+ goto release_desc;
+ }
+- dma_addr = dma_map_single(eth->dev,
++ dma_addr = dma_map_single(eth->dma_dev,
+ new_data + NET_SKB_PAD +
+ eth->ip_align,
+ ring->buf_size,
+ DMA_FROM_DEVICE);
+- if (unlikely(dma_mapping_error(eth->dev, dma_addr))) {
++ if (unlikely(dma_mapping_error(eth->dma_dev, dma_addr))) {
+ skb_free_frag(new_data);
+ netdev->stats.rx_dropped++;
+ goto release_desc;
+ }
+
+- dma_unmap_single(eth->dev, trxd.rxd1,
++ dma_unmap_single(eth->dma_dev, trxd.rxd1,
+ ring->buf_size, DMA_FROM_DEVICE);
+
+ /* receive data */
+@@ -1593,7 +1594,7 @@ static int mtk_tx_alloc(struct mtk_eth *
+ if (!ring->buf)
+ goto no_tx_mem;
+
+- ring->dma = dma_alloc_coherent(eth->dev, MTK_DMA_SIZE * sz,
++ ring->dma = dma_alloc_coherent(eth->dma_dev, MTK_DMA_SIZE * sz,
+ &ring->phys, GFP_ATOMIC);
+ if (!ring->dma)
+ goto no_tx_mem;
+@@ -1611,7 +1612,7 @@ static int mtk_tx_alloc(struct mtk_eth *
+ * descriptors in ring->dma_pdma.
+ */
+ if (!MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) {
+- ring->dma_pdma = dma_alloc_coherent(eth->dev, MTK_DMA_SIZE * sz,
++ ring->dma_pdma = dma_alloc_coherent(eth->dma_dev, MTK_DMA_SIZE * sz,
+ &ring->phys_pdma,
+ GFP_ATOMIC);
+ if (!ring->dma_pdma)
+@@ -1670,7 +1671,7 @@ static void mtk_tx_clean(struct mtk_eth
+ }
+
+ if (ring->dma) {
+- dma_free_coherent(eth->dev,
++ dma_free_coherent(eth->dma_dev,
+ MTK_DMA_SIZE * sizeof(*ring->dma),
+ ring->dma,
+ ring->phys);
+@@ -1678,7 +1679,7 @@ static void mtk_tx_clean(struct mtk_eth
+ }
+
+ if (ring->dma_pdma) {
+- dma_free_coherent(eth->dev,
++ dma_free_coherent(eth->dma_dev,
+ MTK_DMA_SIZE * sizeof(*ring->dma_pdma),
+ ring->dma_pdma,
+ ring->phys_pdma);
+@@ -1723,18 +1724,18 @@ static int mtk_rx_alloc(struct mtk_eth *
+ return -ENOMEM;
+ }
+
+- ring->dma = dma_alloc_coherent(eth->dev,
++ ring->dma = dma_alloc_coherent(eth->dma_dev,
+ rx_dma_size * sizeof(*ring->dma),
+ &ring->phys, GFP_ATOMIC);
+ if (!ring->dma)
+ return -ENOMEM;
+
+ for (i = 0; i < rx_dma_size; i++) {
+- dma_addr_t dma_addr = dma_map_single(eth->dev,
++ dma_addr_t dma_addr = dma_map_single(eth->dma_dev,
+ ring->data[i] + NET_SKB_PAD + eth->ip_align,
+ ring->buf_size,
+ DMA_FROM_DEVICE);
+- if (unlikely(dma_mapping_error(eth->dev, dma_addr)))
++ if (unlikely(dma_mapping_error(eth->dma_dev, dma_addr)))
+ return -ENOMEM;
+ ring->dma[i].rxd1 = (unsigned int)dma_addr;
+
+@@ -1770,7 +1771,7 @@ static void mtk_rx_clean(struct mtk_eth
+ continue;
+ if (!ring->dma[i].rxd1)
+ continue;
+- dma_unmap_single(eth->dev,
++ dma_unmap_single(eth->dma_dev,
+ ring->dma[i].rxd1,
+ ring->buf_size,
+ DMA_FROM_DEVICE);
+@@ -1781,7 +1782,7 @@ static void mtk_rx_clean(struct mtk_eth
+ }
+
+ if (ring->dma) {
+- dma_free_coherent(eth->dev,
++ dma_free_coherent(eth->dma_dev,
+ ring->dma_size * sizeof(*ring->dma),
+ ring->dma,
+ ring->phys);
+@@ -2134,7 +2135,7 @@ static void mtk_dma_free(struct mtk_eth
+ if (eth->netdev[i])
+ netdev_reset_queue(eth->netdev[i]);
+ if (eth->scratch_ring) {
+- dma_free_coherent(eth->dev,
++ dma_free_coherent(eth->dma_dev,
+ MTK_DMA_SIZE * sizeof(struct mtk_tx_dma),
+ eth->scratch_ring,
+ eth->phy_scratch_ring);
+@@ -2482,6 +2483,8 @@ static void mtk_dim_tx(struct work_struc
+
+ static int mtk_hw_init(struct mtk_eth *eth)
+ {
++ u32 dma_mask = ETHSYS_DMA_AG_MAP_PDMA | ETHSYS_DMA_AG_MAP_QDMA |
++ ETHSYS_DMA_AG_MAP_PPE;
+ int i, val, ret;
+
+ if (test_and_set_bit(MTK_HW_INIT, ð->state))
+@@ -2494,6 +2497,10 @@ static int mtk_hw_init(struct mtk_eth *e
+ if (ret)
+ goto err_disable_pm;
+
++ if (eth->ethsys)
++ regmap_update_bits(eth->ethsys, ETHSYS_DMA_AG_MAP, dma_mask,
++ of_dma_is_coherent(eth->dma_dev->of_node) * dma_mask);
++
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) {
+ ret = device_reset(eth->dev);
+ if (ret) {
+@@ -3043,6 +3050,35 @@ free_netdev:
+ return err;
+ }
+
++void mtk_eth_set_dma_device(struct mtk_eth *eth, struct device *dma_dev)
++{
++ struct net_device *dev, *tmp;
++ LIST_HEAD(dev_list);
++ int i;
++
++ rtnl_lock();
++
++ for (i = 0; i < MTK_MAC_COUNT; i++) {
++ dev = eth->netdev[i];
++
++ if (!dev || !(dev->flags & IFF_UP))
++ continue;
++
++ list_add_tail(&dev->close_list, &dev_list);
++ }
++
++ dev_close_many(&dev_list, false);
++
++ eth->dma_dev = dma_dev;
++
++ list_for_each_entry_safe(dev, tmp, &dev_list, close_list) {
++ list_del_init(&dev->close_list);
++ dev_open(dev, NULL);
++ }
++
++ rtnl_unlock();
++}
++
+ static int mtk_probe(struct platform_device *pdev)
+ {
+ struct device_node *mac_np;
+@@ -3056,6 +3092,7 @@ static int mtk_probe(struct platform_dev
+ eth->soc = of_device_get_match_data(&pdev->dev);
+
+ eth->dev = &pdev->dev;
++ eth->dma_dev = &pdev->dev;
+ eth->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(eth->base))
+ return PTR_ERR(eth->base);
+@@ -3104,6 +3141,16 @@ static int mtk_probe(struct platform_dev
+ }
+ }
+
++ if (of_dma_is_coherent(pdev->dev.of_node)) {
++ struct regmap *cci;
++
++ cci = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
++ "mediatek,cci-control");
++ /* enable CPU/bus coherency */
++ if (!IS_ERR(cci))
++ regmap_write(cci, 0, 3);
++ }
++
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_SGMII)) {
+ eth->sgmii = devm_kzalloc(eth->dev, sizeof(*eth->sgmii),
+ GFP_KERNEL);
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+@@ -456,6 +456,12 @@
+ #define RSTCTRL_FE BIT(6)
+ #define RSTCTRL_PPE BIT(31)
+
++/* ethernet dma channel agent map */
++#define ETHSYS_DMA_AG_MAP 0x408
++#define ETHSYS_DMA_AG_MAP_PDMA BIT(0)
++#define ETHSYS_DMA_AG_MAP_QDMA BIT(1)
++#define ETHSYS_DMA_AG_MAP_PPE BIT(2)
++
+ /* SGMII subsystem config registers */
+ /* Register to auto-negotiation restart */
+ #define SGMSYS_PCS_CONTROL_1 0x0
+@@ -873,6 +879,7 @@ struct mtk_sgmii {
+ /* struct mtk_eth - This is the main datasructure for holding the state
+ * of the driver
+ * @dev: The device pointer
++ * @dev: The device pointer used for dma mapping/alloc
+ * @base: The mapped register i/o base
+ * @page_lock: Make sure that register operations are atomic
+ * @tx_irq__lock: Make sure that IRQ register operations are atomic
+@@ -916,6 +923,7 @@ struct mtk_sgmii {
+
+ struct mtk_eth {
+ struct device *dev;
++ struct device *dma_dev;
+ void __iomem *base;
+ spinlock_t page_lock;
+ spinlock_t tx_irq_lock;
+@@ -1014,6 +1022,7 @@ int mtk_gmac_rgmii_path_setup(struct mtk
+ int mtk_eth_offload_init(struct mtk_eth *eth);
+ int mtk_eth_setup_tc(struct net_device *dev, enum tc_setup_type type,
+ void *type_data);
++void mtk_eth_set_dma_device(struct mtk_eth *eth, struct device *dma_dev);
+
+
+ #endif /* MTK_ETH_H */
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 7 Feb 2022 10:27:22 +0100
+Subject: [PATCH] arm64: dts: mediatek: mt7622: add support for coherent
+ DMA
+
+It improves performance by eliminating the need for a cache flush on rx and tx
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
++++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+@@ -357,7 +357,7 @@
+ };
+
+ cci_control2: slave-if@5000 {
+- compatible = "arm,cci-400-ctrl-if";
++ compatible = "arm,cci-400-ctrl-if", "syscon";
+ interface-type = "ace";
+ reg = <0x5000 0x1000>;
+ };
+@@ -936,6 +936,8 @@
+ power-domains = <&scpsys MT7622_POWER_DOMAIN_ETHSYS>;
+ mediatek,ethsys = <ðsys>;
+ mediatek,sgmiisys = <&sgmiisys>;
++ mediatek,cci-control = <&cci_control2>;
++ dma-coherent;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 5 Feb 2022 17:56:08 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: add support for Wireless
+ Ethernet Dispatch (WED)
+
+The Wireless Ethernet Dispatch subsystem on the MT7622 SoC can be
+configured to intercept and handle access to the DMA queues and
+PCIe interrupts for a MT7615/MT7915 wireless card.
+It can manage the internal WDMA (Wireless DMA) controller, which allows
+ethernet packets to be passed from the packet switch engine (PSE) to the
+wireless card, bypassing the CPU entirely.
+This can be used to implement hardware flow offloading from ethernet to
+WLAN.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ create mode 100644 drivers/net/ethernet/mediatek/mtk_wed.c
+ create mode 100644 drivers/net/ethernet/mediatek/mtk_wed.h
+ create mode 100644 drivers/net/ethernet/mediatek/mtk_wed_debugfs.c
+ create mode 100644 drivers/net/ethernet/mediatek/mtk_wed_ops.c
+ create mode 100644 drivers/net/ethernet/mediatek/mtk_wed_regs.h
+ create mode 100644 include/linux/soc/mediatek/mtk_wed.h
+
+--- a/drivers/net/ethernet/mediatek/Kconfig
++++ b/drivers/net/ethernet/mediatek/Kconfig
+@@ -7,6 +7,10 @@ config NET_VENDOR_MEDIATEK
+
+ if NET_VENDOR_MEDIATEK
+
++config NET_MEDIATEK_SOC_WED
++ depends on ARCH_MEDIATEK || COMPILE_TEST
++ def_bool NET_MEDIATEK_SOC != n
++
+ config NET_MEDIATEK_SOC
+ tristate "MediaTek SoC Gigabit Ethernet support"
+ select PHYLINK
+--- a/drivers/net/ethernet/mediatek/Makefile
++++ b/drivers/net/ethernet/mediatek/Makefile
+@@ -5,4 +5,9 @@
+
+ obj-$(CONFIG_NET_MEDIATEK_SOC) += mtk_eth.o
+ mtk_eth-y := mtk_eth_soc.o mtk_sgmii.o mtk_eth_path.o mtk_ppe.o mtk_ppe_debugfs.o mtk_ppe_offload.o
++mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed.o
++ifdef CONFIG_DEBUG_FS
++mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed_debugfs.o
++endif
++obj-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed_ops.o
+ obj-$(CONFIG_NET_MEDIATEK_STAR_EMAC) += mtk_star_emac.o
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -24,6 +24,7 @@
+ #include <net/dsa.h>
+
+ #include "mtk_eth_soc.h"
++#include "mtk_wed.h"
+
+ static int mtk_msg_level = -1;
+ module_param_named(msg_level, mtk_msg_level, int, 0);
+@@ -3173,6 +3174,22 @@ static int mtk_probe(struct platform_dev
+ }
+ }
+
++ for (i = 0;; i++) {
++ struct device_node *np = of_parse_phandle(pdev->dev.of_node,
++ "mediatek,wed", i);
++ static const u32 wdma_regs[] = {
++ MTK_WDMA0_BASE,
++ MTK_WDMA1_BASE
++ };
++ void __iomem *wdma;
++
++ if (!np || i >= ARRAY_SIZE(wdma_regs))
++ break;
++
++ wdma = eth->base + wdma_regs[i];
++ mtk_wed_add_hw(np, eth, wdma, i);
++ }
++
+ for (i = 0; i < 3; i++) {
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_INT) && i > 0)
+ eth->irq[i] = eth->irq[0];
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+@@ -295,6 +295,9 @@
+ #define MTK_GDM1_TX_GPCNT 0x2438
+ #define MTK_STAT_OFFSET 0x40
+
++#define MTK_WDMA0_BASE 0x2800
++#define MTK_WDMA1_BASE 0x2c00
++
+ /* QDMA descriptor txd4 */
+ #define TX_DMA_CHKSUM (0x7 << 29)
+ #define TX_DMA_TSO BIT(28)
+--- /dev/null
++++ b/drivers/net/ethernet/mediatek/mtk_wed.c
+@@ -0,0 +1,875 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/* Copyright (C) 2021 Felix Fietkau <nbd@nbd.name> */
++
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/module.h>
++#include <linux/bitfield.h>
++#include <linux/dma-mapping.h>
++#include <linux/skbuff.h>
++#include <linux/of_platform.h>
++#include <linux/of_address.h>
++#include <linux/mfd/syscon.h>
++#include <linux/debugfs.h>
++#include <linux/soc/mediatek/mtk_wed.h>
++#include "mtk_eth_soc.h"
++#include "mtk_wed_regs.h"
++#include "mtk_wed.h"
++#include "mtk_ppe.h"
++
++#define MTK_PCIE_BASE(n) (0x1a143000 + (n) * 0x2000)
++
++#define MTK_WED_PKT_SIZE 1900
++#define MTK_WED_BUF_SIZE 2048
++#define MTK_WED_BUF_PER_PAGE (PAGE_SIZE / 2048)
++
++#define MTK_WED_TX_RING_SIZE 2048
++#define MTK_WED_WDMA_RING_SIZE 1024
++
++static struct mtk_wed_hw *hw_list[2];
++static DEFINE_MUTEX(hw_lock);
++
++static void
++wed_m32(struct mtk_wed_device *dev, u32 reg, u32 mask, u32 val)
++{
++ regmap_update_bits(dev->hw->regs, reg, mask | val, val);
++}
++
++static void
++wed_set(struct mtk_wed_device *dev, u32 reg, u32 mask)
++{
++ return wed_m32(dev, reg, 0, mask);
++}
++
++static void
++wed_clr(struct mtk_wed_device *dev, u32 reg, u32 mask)
++{
++ return wed_m32(dev, reg, mask, 0);
++}
++
++static void
++wdma_m32(struct mtk_wed_device *dev, u32 reg, u32 mask, u32 val)
++{
++ wdma_w32(dev, reg, (wdma_r32(dev, reg) & ~mask) | val);
++}
++
++static void
++wdma_set(struct mtk_wed_device *dev, u32 reg, u32 mask)
++{
++ wdma_m32(dev, reg, 0, mask);
++}
++
++static u32
++mtk_wed_read_reset(struct mtk_wed_device *dev)
++{
++ return wed_r32(dev, MTK_WED_RESET);
++}
++
++static void
++mtk_wed_reset(struct mtk_wed_device *dev, u32 mask)
++{
++ u32 status;
++
++ wed_w32(dev, MTK_WED_RESET, mask);
++ if (readx_poll_timeout(mtk_wed_read_reset, dev, status,
++ !(status & mask), 0, 1000))
++ WARN_ON_ONCE(1);
++}
++
++static struct mtk_wed_hw *
++mtk_wed_assign(struct mtk_wed_device *dev)
++{
++ struct mtk_wed_hw *hw;
++
++ hw = hw_list[pci_domain_nr(dev->wlan.pci_dev->bus)];
++ if (!hw || hw->wed_dev)
++ return NULL;
++
++ hw->wed_dev = dev;
++ return hw;
++}
++
++static int
++mtk_wed_buffer_alloc(struct mtk_wed_device *dev)
++{
++ struct mtk_wdma_desc *desc;
++ dma_addr_t desc_phys;
++ void **page_list;
++ int token = dev->wlan.token_start;
++ int ring_size;
++ int n_pages;
++ int i, page_idx;
++
++ ring_size = dev->wlan.nbuf & ~(MTK_WED_BUF_PER_PAGE - 1);
++ n_pages = ring_size / MTK_WED_BUF_PER_PAGE;
++
++ page_list = kcalloc(n_pages, sizeof(*page_list), GFP_KERNEL);
++ if (!page_list)
++ return -ENOMEM;
++
++ dev->buf_ring.size = ring_size;
++ dev->buf_ring.pages = page_list;
++
++ desc = dma_alloc_coherent(dev->hw->dev, ring_size * sizeof(*desc),
++ &desc_phys, GFP_KERNEL);
++ if (!desc)
++ return -ENOMEM;
++
++ dev->buf_ring.desc = desc;
++ dev->buf_ring.desc_phys = desc_phys;
++
++ for (i = 0, page_idx = 0; i < ring_size; i += MTK_WED_BUF_PER_PAGE) {
++ dma_addr_t page_phys, buf_phys;
++ struct page *page;
++ void *buf;
++ int s;
++
++ page = __dev_alloc_pages(GFP_KERNEL, 0);
++ if (!page)
++ return -ENOMEM;
++
++ page_phys = dma_map_page(dev->hw->dev, page, 0, PAGE_SIZE,
++ DMA_BIDIRECTIONAL);
++ if (dma_mapping_error(dev->hw->dev, page_phys)) {
++ __free_page(page);
++ return -ENOMEM;
++ }
++
++ page_list[page_idx++] = page;
++ dma_sync_single_for_cpu(dev->hw->dev, page_phys, PAGE_SIZE,
++ DMA_BIDIRECTIONAL);
++
++ buf = page_to_virt(page);
++ buf_phys = page_phys;
++
++ for (s = 0; s < MTK_WED_BUF_PER_PAGE; s++) {
++ u32 txd_size;
++
++ txd_size = dev->wlan.init_buf(buf, buf_phys, token++);
++
++ desc->buf0 = buf_phys;
++ desc->buf1 = buf_phys + txd_size;
++ desc->ctrl = FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN0,
++ txd_size) |
++ FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN1,
++ MTK_WED_BUF_SIZE - txd_size) |
++ MTK_WDMA_DESC_CTRL_LAST_SEG1;
++ desc->info = 0;
++ desc++;
++
++ buf += MTK_WED_BUF_SIZE;
++ buf_phys += MTK_WED_BUF_SIZE;
++ }
++
++ dma_sync_single_for_device(dev->hw->dev, page_phys, PAGE_SIZE,
++ DMA_BIDIRECTIONAL);
++ }
++
++ return 0;
++}
++
++static void
++mtk_wed_free_buffer(struct mtk_wed_device *dev)
++{
++ struct mtk_wdma_desc *desc = dev->buf_ring.desc;
++ void **page_list = dev->buf_ring.pages;
++ int page_idx;
++ int i;
++
++ if (!page_list)
++ return;
++
++ if (!desc)
++ goto free_pagelist;
++
++ for (i = 0, page_idx = 0; i < dev->buf_ring.size; i += MTK_WED_BUF_PER_PAGE) {
++ void *page = page_list[page_idx++];
++
++ if (!page)
++ break;
++
++ dma_unmap_page(dev->hw->dev, desc[i].buf0,
++ PAGE_SIZE, DMA_BIDIRECTIONAL);
++ __free_page(page);
++ }
++
++ dma_free_coherent(dev->hw->dev, dev->buf_ring.size * sizeof(*desc),
++ desc, dev->buf_ring.desc_phys);
++
++free_pagelist:
++ kfree(page_list);
++}
++
++static void
++mtk_wed_free_ring(struct mtk_wed_device *dev, struct mtk_wed_ring *ring)
++{
++ if (!ring->desc)
++ return;
++
++ dma_free_coherent(dev->hw->dev, ring->size * sizeof(*ring->desc),
++ ring->desc, ring->desc_phys);
++}
++
++static void
++mtk_wed_free_tx_rings(struct mtk_wed_device *dev)
++{
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(dev->tx_ring); i++)
++ mtk_wed_free_ring(dev, &dev->tx_ring[i]);
++ for (i = 0; i < ARRAY_SIZE(dev->tx_wdma); i++)
++ mtk_wed_free_ring(dev, &dev->tx_wdma[i]);
++}
++
++static void
++mtk_wed_set_ext_int(struct mtk_wed_device *dev, bool en)
++{
++ u32 mask = MTK_WED_EXT_INT_STATUS_ERROR_MASK;
++
++ if (!dev->hw->num_flows)
++ mask &= ~MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD;
++
++ wed_w32(dev, MTK_WED_EXT_INT_MASK, en ? mask : 0);
++ wed_r32(dev, MTK_WED_EXT_INT_MASK);
++}
++
++static void
++mtk_wed_stop(struct mtk_wed_device *dev)
++{
++ regmap_write(dev->hw->mirror, dev->hw->index * 4, 0);
++ mtk_wed_set_ext_int(dev, false);
++
++ wed_clr(dev, MTK_WED_CTRL,
++ MTK_WED_CTRL_WDMA_INT_AGENT_EN |
++ MTK_WED_CTRL_WPDMA_INT_AGENT_EN |
++ MTK_WED_CTRL_WED_TX_BM_EN |
++ MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
++ wed_w32(dev, MTK_WED_WPDMA_INT_TRIGGER, 0);
++ wed_w32(dev, MTK_WED_WDMA_INT_TRIGGER, 0);
++ wdma_w32(dev, MTK_WDMA_INT_MASK, 0);
++ wdma_w32(dev, MTK_WDMA_INT_GRP2, 0);
++ wed_w32(dev, MTK_WED_WPDMA_INT_MASK, 0);
++
++ wed_clr(dev, MTK_WED_GLO_CFG,
++ MTK_WED_GLO_CFG_TX_DMA_EN |
++ MTK_WED_GLO_CFG_RX_DMA_EN);
++ wed_clr(dev, MTK_WED_WPDMA_GLO_CFG,
++ MTK_WED_WPDMA_GLO_CFG_TX_DRV_EN |
++ MTK_WED_WPDMA_GLO_CFG_RX_DRV_EN);
++ wed_clr(dev, MTK_WED_WDMA_GLO_CFG,
++ MTK_WED_WDMA_GLO_CFG_RX_DRV_EN);
++}
++
++static void
++mtk_wed_detach(struct mtk_wed_device *dev)
++{
++ struct device_node *wlan_node = dev->wlan.pci_dev->dev.of_node;
++ struct mtk_wed_hw *hw = dev->hw;
++
++ mutex_lock(&hw_lock);
++
++ mtk_wed_stop(dev);
++
++ wdma_w32(dev, MTK_WDMA_RESET_IDX, MTK_WDMA_RESET_IDX_RX);
++ wdma_w32(dev, MTK_WDMA_RESET_IDX, 0);
++
++ mtk_wed_reset(dev, MTK_WED_RESET_WED);
++
++ mtk_wed_free_buffer(dev);
++ mtk_wed_free_tx_rings(dev);
++
++ if (of_dma_is_coherent(wlan_node))
++ regmap_update_bits(hw->hifsys, HIFSYS_DMA_AG_MAP,
++ BIT(hw->index), BIT(hw->index));
++
++ if (!hw_list[!hw->index]->wed_dev &&
++ hw->eth->dma_dev != hw->eth->dev)
++ mtk_eth_set_dma_device(hw->eth, hw->eth->dev);
++
++ memset(dev, 0, sizeof(*dev));
++ module_put(THIS_MODULE);
++
++ hw->wed_dev = NULL;
++ mutex_unlock(&hw_lock);
++}
++
++static void
++mtk_wed_hw_init_early(struct mtk_wed_device *dev)
++{
++ u32 mask, set;
++ u32 offset;
++
++ mtk_wed_stop(dev);
++ mtk_wed_reset(dev, MTK_WED_RESET_WED);
++
++ mask = MTK_WED_WDMA_GLO_CFG_BT_SIZE |
++ MTK_WED_WDMA_GLO_CFG_DYNAMIC_DMAD_RECYCLE |
++ MTK_WED_WDMA_GLO_CFG_RX_DIS_FSM_AUTO_IDLE;
++ set = FIELD_PREP(MTK_WED_WDMA_GLO_CFG_BT_SIZE, 2) |
++ MTK_WED_WDMA_GLO_CFG_DYNAMIC_SKIP_DMAD_PREP |
++ MTK_WED_WDMA_GLO_CFG_IDLE_DMAD_SUPPLY;
++ wed_m32(dev, MTK_WED_WDMA_GLO_CFG, mask, set);
++
++ wdma_set(dev, MTK_WDMA_GLO_CFG, MTK_WDMA_GLO_CFG_RX_INFO_PRERES);
++
++ offset = dev->hw->index ? 0x04000400 : 0;
++ wed_w32(dev, MTK_WED_WDMA_OFFSET0, 0x2a042a20 + offset);
++ wed_w32(dev, MTK_WED_WDMA_OFFSET1, 0x29002800 + offset);
++
++ wed_w32(dev, MTK_WED_PCIE_CFG_BASE, MTK_PCIE_BASE(dev->hw->index));
++ wed_w32(dev, MTK_WED_WPDMA_CFG_BASE, dev->wlan.wpdma_phys);
++}
++
++static void
++mtk_wed_hw_init(struct mtk_wed_device *dev)
++{
++ if (dev->init_done)
++ return;
++
++ dev->init_done = true;
++ mtk_wed_set_ext_int(dev, false);
++ wed_w32(dev, MTK_WED_TX_BM_CTRL,
++ MTK_WED_TX_BM_CTRL_PAUSE |
++ FIELD_PREP(MTK_WED_TX_BM_CTRL_VLD_GRP_NUM,
++ dev->buf_ring.size / 128) |
++ FIELD_PREP(MTK_WED_TX_BM_CTRL_RSV_GRP_NUM,
++ MTK_WED_TX_RING_SIZE / 256));
++
++ wed_w32(dev, MTK_WED_TX_BM_BASE, dev->buf_ring.desc_phys);
++
++ wed_w32(dev, MTK_WED_TX_BM_TKID,
++ FIELD_PREP(MTK_WED_TX_BM_TKID_START,
++ dev->wlan.token_start) |
++ FIELD_PREP(MTK_WED_TX_BM_TKID_END,
++ dev->wlan.token_start + dev->wlan.nbuf - 1));
++
++ wed_w32(dev, MTK_WED_TX_BM_BUF_LEN, MTK_WED_PKT_SIZE);
++
++ wed_w32(dev, MTK_WED_TX_BM_DYN_THR,
++ FIELD_PREP(MTK_WED_TX_BM_DYN_THR_LO, 1) |
++ MTK_WED_TX_BM_DYN_THR_HI);
++
++ mtk_wed_reset(dev, MTK_WED_RESET_TX_BM);
++
++ wed_set(dev, MTK_WED_CTRL,
++ MTK_WED_CTRL_WED_TX_BM_EN |
++ MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
++
++ wed_clr(dev, MTK_WED_TX_BM_CTRL, MTK_WED_TX_BM_CTRL_PAUSE);
++}
++
++static void
++mtk_wed_ring_reset(struct mtk_wdma_desc *desc, int size)
++{
++ int i;
++
++ for (i = 0; i < size; i++) {
++ desc[i].buf0 = 0;
++ desc[i].ctrl = cpu_to_le32(MTK_WDMA_DESC_CTRL_DMA_DONE);
++ desc[i].buf1 = 0;
++ desc[i].info = 0;
++ }
++}
++
++static u32
++mtk_wed_check_busy(struct mtk_wed_device *dev)
++{
++ if (wed_r32(dev, MTK_WED_GLO_CFG) & MTK_WED_GLO_CFG_TX_DMA_BUSY)
++ return true;
++
++ if (wed_r32(dev, MTK_WED_WPDMA_GLO_CFG) &
++ MTK_WED_WPDMA_GLO_CFG_TX_DRV_BUSY)
++ return true;
++
++ if (wed_r32(dev, MTK_WED_CTRL) & MTK_WED_CTRL_WDMA_INT_AGENT_BUSY)
++ return true;
++
++ if (wed_r32(dev, MTK_WED_WDMA_GLO_CFG) &
++ MTK_WED_WDMA_GLO_CFG_RX_DRV_BUSY)
++ return true;
++
++ if (wdma_r32(dev, MTK_WDMA_GLO_CFG) &
++ MTK_WED_WDMA_GLO_CFG_RX_DRV_BUSY)
++ return true;
++
++ if (wed_r32(dev, MTK_WED_CTRL) &
++ (MTK_WED_CTRL_WED_TX_BM_BUSY | MTK_WED_CTRL_WED_TX_FREE_AGENT_BUSY))
++ return true;
++
++ return false;
++}
++
++static int
++mtk_wed_poll_busy(struct mtk_wed_device *dev)
++{
++ int sleep = 15000;
++ int timeout = 100 * sleep;
++ u32 val;
++
++ return read_poll_timeout(mtk_wed_check_busy, val, !val, sleep,
++ timeout, false, dev);
++}
++
++static void
++mtk_wed_reset_dma(struct mtk_wed_device *dev)
++{
++ bool busy = false;
++ u32 val;
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(dev->tx_ring); i++) {
++ struct mtk_wdma_desc *desc = dev->tx_ring[i].desc;
++
++ if (!desc)
++ continue;
++
++ mtk_wed_ring_reset(desc, MTK_WED_TX_RING_SIZE);
++ }
++
++ if (mtk_wed_poll_busy(dev))
++ busy = mtk_wed_check_busy(dev);
++
++ if (busy) {
++ mtk_wed_reset(dev, MTK_WED_RESET_WED_TX_DMA);
++ } else {
++ wed_w32(dev, MTK_WED_RESET_IDX,
++ MTK_WED_RESET_IDX_TX |
++ MTK_WED_RESET_IDX_RX);
++ wed_w32(dev, MTK_WED_RESET_IDX, 0);
++ }
++
++ wdma_w32(dev, MTK_WDMA_RESET_IDX, MTK_WDMA_RESET_IDX_RX);
++ wdma_w32(dev, MTK_WDMA_RESET_IDX, 0);
++
++ if (busy) {
++ mtk_wed_reset(dev, MTK_WED_RESET_WDMA_INT_AGENT);
++ mtk_wed_reset(dev, MTK_WED_RESET_WDMA_RX_DRV);
++ } else {
++ wed_w32(dev, MTK_WED_WDMA_RESET_IDX,
++ MTK_WED_WDMA_RESET_IDX_RX | MTK_WED_WDMA_RESET_IDX_DRV);
++ wed_w32(dev, MTK_WED_WDMA_RESET_IDX, 0);
++
++ wed_set(dev, MTK_WED_WDMA_GLO_CFG,
++ MTK_WED_WDMA_GLO_CFG_RST_INIT_COMPLETE);
++
++ wed_clr(dev, MTK_WED_WDMA_GLO_CFG,
++ MTK_WED_WDMA_GLO_CFG_RST_INIT_COMPLETE);
++ }
++
++ for (i = 0; i < 100; i++) {
++ val = wed_r32(dev, MTK_WED_TX_BM_INTF);
++ if (FIELD_GET(MTK_WED_TX_BM_INTF_TKFIFO_FDEP, val) == 0x40)
++ break;
++ }
++
++ mtk_wed_reset(dev, MTK_WED_RESET_TX_FREE_AGENT);
++ mtk_wed_reset(dev, MTK_WED_RESET_TX_BM);
++
++ if (busy) {
++ mtk_wed_reset(dev, MTK_WED_RESET_WPDMA_INT_AGENT);
++ mtk_wed_reset(dev, MTK_WED_RESET_WPDMA_TX_DRV);
++ mtk_wed_reset(dev, MTK_WED_RESET_WPDMA_RX_DRV);
++ } else {
++ wed_w32(dev, MTK_WED_WPDMA_RESET_IDX,
++ MTK_WED_WPDMA_RESET_IDX_TX |
++ MTK_WED_WPDMA_RESET_IDX_RX);
++ wed_w32(dev, MTK_WED_WPDMA_RESET_IDX, 0);
++ }
++
++}
++
++static int
++mtk_wed_ring_alloc(struct mtk_wed_device *dev, struct mtk_wed_ring *ring,
++ int size)
++{
++ ring->desc = dma_alloc_coherent(dev->hw->dev,
++ size * sizeof(*ring->desc),
++ &ring->desc_phys, GFP_KERNEL);
++ if (!ring->desc)
++ return -ENOMEM;
++
++ ring->size = size;
++ mtk_wed_ring_reset(ring->desc, size);
++
++ return 0;
++}
++
++static int
++mtk_wed_wdma_ring_setup(struct mtk_wed_device *dev, int idx, int size)
++{
++ struct mtk_wed_ring *wdma = &dev->tx_wdma[idx];
++
++ if (mtk_wed_ring_alloc(dev, wdma, MTK_WED_WDMA_RING_SIZE))
++ return -ENOMEM;
++
++ wdma_w32(dev, MTK_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_BASE,
++ wdma->desc_phys);
++ wdma_w32(dev, MTK_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_COUNT,
++ size);
++ wdma_w32(dev, MTK_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_CPU_IDX, 0);
++
++ wed_w32(dev, MTK_WED_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_BASE,
++ wdma->desc_phys);
++ wed_w32(dev, MTK_WED_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_COUNT,
++ size);
++
++ return 0;
++}
++
++static void
++mtk_wed_start(struct mtk_wed_device *dev, u32 irq_mask)
++{
++ u32 wdma_mask;
++ u32 val;
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(dev->tx_wdma); i++)
++ if (!dev->tx_wdma[i].desc)
++ mtk_wed_wdma_ring_setup(dev, i, 16);
++
++ wdma_mask = FIELD_PREP(MTK_WDMA_INT_MASK_RX_DONE, GENMASK(1, 0));
++
++ mtk_wed_hw_init(dev);
++
++ wed_set(dev, MTK_WED_CTRL,
++ MTK_WED_CTRL_WDMA_INT_AGENT_EN |
++ MTK_WED_CTRL_WPDMA_INT_AGENT_EN |
++ MTK_WED_CTRL_WED_TX_BM_EN |
++ MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
++
++ wed_w32(dev, MTK_WED_PCIE_INT_TRIGGER, MTK_WED_PCIE_INT_TRIGGER_STATUS);
++
++ wed_w32(dev, MTK_WED_WPDMA_INT_TRIGGER,
++ MTK_WED_WPDMA_INT_TRIGGER_RX_DONE |
++ MTK_WED_WPDMA_INT_TRIGGER_TX_DONE);
++
++ wed_set(dev, MTK_WED_WPDMA_INT_CTRL,
++ MTK_WED_WPDMA_INT_CTRL_SUBRT_ADV);
++
++ wed_w32(dev, MTK_WED_WDMA_INT_TRIGGER, wdma_mask);
++ wed_clr(dev, MTK_WED_WDMA_INT_CTRL, wdma_mask);
++
++ wdma_w32(dev, MTK_WDMA_INT_MASK, wdma_mask);
++ wdma_w32(dev, MTK_WDMA_INT_GRP2, wdma_mask);
++
++ wed_w32(dev, MTK_WED_WPDMA_INT_MASK, irq_mask);
++ wed_w32(dev, MTK_WED_INT_MASK, irq_mask);
++
++ wed_set(dev, MTK_WED_GLO_CFG,
++ MTK_WED_GLO_CFG_TX_DMA_EN |
++ MTK_WED_GLO_CFG_RX_DMA_EN);
++ wed_set(dev, MTK_WED_WPDMA_GLO_CFG,
++ MTK_WED_WPDMA_GLO_CFG_TX_DRV_EN |
++ MTK_WED_WPDMA_GLO_CFG_RX_DRV_EN);
++ wed_set(dev, MTK_WED_WDMA_GLO_CFG,
++ MTK_WED_WDMA_GLO_CFG_RX_DRV_EN);
++
++ mtk_wed_set_ext_int(dev, true);
++ val = dev->wlan.wpdma_phys |
++ MTK_PCIE_MIRROR_MAP_EN |
++ FIELD_PREP(MTK_PCIE_MIRROR_MAP_WED_ID, dev->hw->index);
++
++ if (dev->hw->index)
++ val |= BIT(1);
++ val |= BIT(0);
++ regmap_write(dev->hw->mirror, dev->hw->index * 4, val);
++
++ dev->running = true;
++}
++
++static int
++mtk_wed_attach(struct mtk_wed_device *dev)
++ __releases(RCU)
++{
++ struct mtk_wed_hw *hw;
++ int ret = 0;
++
++ RCU_LOCKDEP_WARN(!rcu_read_lock_held(),
++ "mtk_wed_attach without holding the RCU read lock");
++
++ if (pci_domain_nr(dev->wlan.pci_dev->bus) > 1 ||
++ !try_module_get(THIS_MODULE))
++ ret = -ENODEV;
++
++ rcu_read_unlock();
++
++ if (ret)
++ return ret;
++
++ mutex_lock(&hw_lock);
++
++ hw = mtk_wed_assign(dev);
++ if (!hw) {
++ module_put(THIS_MODULE);
++ ret = -ENODEV;
++ goto out;
++ }
++
++ dev_info(&dev->wlan.pci_dev->dev, "attaching wed device %d\n", hw->index);
++
++ dev->hw = hw;
++ dev->dev = hw->dev;
++ dev->irq = hw->irq;
++ dev->wdma_idx = hw->index;
++
++ if (hw->eth->dma_dev == hw->eth->dev &&
++ of_dma_is_coherent(hw->eth->dev->of_node))
++ mtk_eth_set_dma_device(hw->eth, hw->dev);
++
++ ret = mtk_wed_buffer_alloc(dev);
++ if (ret) {
++ mtk_wed_detach(dev);
++ goto out;
++ }
++
++ mtk_wed_hw_init_early(dev);
++ regmap_update_bits(hw->hifsys, HIFSYS_DMA_AG_MAP, BIT(hw->index), 0);
++
++out:
++ mutex_unlock(&hw_lock);
++
++ return ret;
++}
++
++static int
++mtk_wed_tx_ring_setup(struct mtk_wed_device *dev, int idx, void __iomem *regs)
++{
++ struct mtk_wed_ring *ring = &dev->tx_ring[idx];
++
++ /*
++ * Tx ring redirection:
++ * Instead of configuring the WLAN PDMA TX ring directly, the WLAN
++ * driver allocated DMA ring gets configured into WED MTK_WED_RING_TX(n)
++ * registers.
++ *
++ * WED driver posts its own DMA ring as WLAN PDMA TX and configures it
++ * into MTK_WED_WPDMA_RING_TX(n) registers.
++ * It gets filled with packets picked up from WED TX ring and from
++ * WDMA RX.
++ */
++
++ BUG_ON(idx > ARRAY_SIZE(dev->tx_ring));
++
++ if (mtk_wed_ring_alloc(dev, ring, MTK_WED_TX_RING_SIZE))
++ return -ENOMEM;
++
++ if (mtk_wed_wdma_ring_setup(dev, idx, MTK_WED_WDMA_RING_SIZE))
++ return -ENOMEM;
++
++ ring->reg_base = MTK_WED_RING_TX(idx);
++ ring->wpdma = regs;
++
++ /* WED -> WPDMA */
++ wpdma_tx_w32(dev, idx, MTK_WED_RING_OFS_BASE, ring->desc_phys);
++ wpdma_tx_w32(dev, idx, MTK_WED_RING_OFS_COUNT, MTK_WED_TX_RING_SIZE);
++ wpdma_tx_w32(dev, idx, MTK_WED_RING_OFS_CPU_IDX, 0);
++
++ wed_w32(dev, MTK_WED_WPDMA_RING_TX(idx) + MTK_WED_RING_OFS_BASE,
++ ring->desc_phys);
++ wed_w32(dev, MTK_WED_WPDMA_RING_TX(idx) + MTK_WED_RING_OFS_COUNT,
++ MTK_WED_TX_RING_SIZE);
++ wed_w32(dev, MTK_WED_WPDMA_RING_TX(idx) + MTK_WED_RING_OFS_CPU_IDX, 0);
++
++ return 0;
++}
++
++static int
++mtk_wed_txfree_ring_setup(struct mtk_wed_device *dev, void __iomem *regs)
++{
++ struct mtk_wed_ring *ring = &dev->txfree_ring;
++ int i;
++
++ /*
++ * For txfree event handling, the same DMA ring is shared between WED
++ * and WLAN. The WLAN driver accesses the ring index registers through
++ * WED
++ */
++ ring->reg_base = MTK_WED_RING_RX(1);
++ ring->wpdma = regs;
++
++ for (i = 0; i < 12; i += 4) {
++ u32 val = readl(regs + i);
++
++ wed_w32(dev, MTK_WED_RING_RX(1) + i, val);
++ wed_w32(dev, MTK_WED_WPDMA_RING_RX(1) + i, val);
++ }
++
++ return 0;
++}
++
++static u32
++mtk_wed_irq_get(struct mtk_wed_device *dev, u32 mask)
++{
++ u32 val;
++
++ val = wed_r32(dev, MTK_WED_EXT_INT_STATUS);
++ wed_w32(dev, MTK_WED_EXT_INT_STATUS, val);
++ val &= MTK_WED_EXT_INT_STATUS_ERROR_MASK;
++ if (!dev->hw->num_flows)
++ val &= ~MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD;
++ if (val && net_ratelimit())
++ pr_err("mtk_wed%d: error status=%08x\n", dev->hw->index, val);
++
++ val = wed_r32(dev, MTK_WED_INT_STATUS);
++ val &= mask;
++ wed_w32(dev, MTK_WED_INT_STATUS, val); /* ACK */
++
++ return val;
++}
++
++static void
++mtk_wed_irq_set_mask(struct mtk_wed_device *dev, u32 mask)
++{
++ if (!dev->running)
++ return;
++
++ mtk_wed_set_ext_int(dev, !!mask);
++ wed_w32(dev, MTK_WED_INT_MASK, mask);
++}
++
++int mtk_wed_flow_add(int index)
++{
++ struct mtk_wed_hw *hw = hw_list[index];
++ int ret;
++
++ if (!hw || !hw->wed_dev)
++ return -ENODEV;
++
++ if (hw->num_flows) {
++ hw->num_flows++;
++ return 0;
++ }
++
++ mutex_lock(&hw_lock);
++ if (!hw->wed_dev) {
++ ret = -ENODEV;
++ goto out;
++ }
++
++ ret = hw->wed_dev->wlan.offload_enable(hw->wed_dev);
++ if (!ret)
++ hw->num_flows++;
++ mtk_wed_set_ext_int(hw->wed_dev, true);
++
++out:
++ mutex_unlock(&hw_lock);
++
++ return ret;
++}
++
++void mtk_wed_flow_remove(int index)
++{
++ struct mtk_wed_hw *hw = hw_list[index];
++
++ if (!hw)
++ return;
++
++ if (--hw->num_flows)
++ return;
++
++ mutex_lock(&hw_lock);
++ if (!hw->wed_dev)
++ goto out;
++
++ hw->wed_dev->wlan.offload_disable(hw->wed_dev);
++ mtk_wed_set_ext_int(hw->wed_dev, true);
++
++out:
++ mutex_unlock(&hw_lock);
++}
++
++void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
++ void __iomem *wdma, int index)
++{
++ static const struct mtk_wed_ops wed_ops = {
++ .attach = mtk_wed_attach,
++ .tx_ring_setup = mtk_wed_tx_ring_setup,
++ .txfree_ring_setup = mtk_wed_txfree_ring_setup,
++ .start = mtk_wed_start,
++ .stop = mtk_wed_stop,
++ .reset_dma = mtk_wed_reset_dma,
++ .reg_read = wed_r32,
++ .reg_write = wed_w32,
++ .irq_get = mtk_wed_irq_get,
++ .irq_set_mask = mtk_wed_irq_set_mask,
++ .detach = mtk_wed_detach,
++ };
++ struct device_node *eth_np = eth->dev->of_node;
++ struct platform_device *pdev;
++ struct mtk_wed_hw *hw;
++ struct regmap *regs;
++ int irq;
++
++ if (!np)
++ return;
++
++ pdev = of_find_device_by_node(np);
++ if (!pdev)
++ return;
++
++ get_device(&pdev->dev);
++ irq = platform_get_irq(pdev, 0);
++ if (irq < 0)
++ return;
++
++ regs = syscon_regmap_lookup_by_phandle(np, NULL);
++ if (!regs)
++ return;
++
++ rcu_assign_pointer(mtk_soc_wed_ops, &wed_ops);
++
++ mutex_lock(&hw_lock);
++
++ if (WARN_ON(hw_list[index]))
++ goto unlock;
++
++ hw = kzalloc(sizeof(*hw), GFP_KERNEL);
++ hw->node = np;
++ hw->regs = regs;
++ hw->eth = eth;
++ hw->dev = &pdev->dev;
++ hw->wdma = wdma;
++ hw->index = index;
++ hw->irq = irq;
++ hw->mirror = syscon_regmap_lookup_by_phandle(eth_np,
++ "mediatek,pcie-mirror");
++ hw->hifsys = syscon_regmap_lookup_by_phandle(eth_np,
++ "mediatek,hifsys");
++ if (IS_ERR(hw->mirror) || IS_ERR(hw->hifsys)) {
++ kfree(hw);
++ goto unlock;
++ }
++
++ if (!index) {
++ regmap_write(hw->mirror, 0, 0);
++ regmap_write(hw->mirror, 4, 0);
++ }
++ mtk_wed_hw_add_debugfs(hw);
++
++ hw_list[index] = hw;
++
++unlock:
++ mutex_unlock(&hw_lock);
++}
++
++void mtk_wed_exit(void)
++{
++ int i;
++
++ rcu_assign_pointer(mtk_soc_wed_ops, NULL);
++
++ synchronize_rcu();
++
++ for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
++ struct mtk_wed_hw *hw;
++
++ hw = hw_list[i];
++ if (!hw)
++ continue;
++
++ hw_list[i] = NULL;
++ debugfs_remove(hw->debugfs_dir);
++ put_device(hw->dev);
++ kfree(hw);
++ }
++}
+--- /dev/null
++++ b/drivers/net/ethernet/mediatek/mtk_wed.h
+@@ -0,0 +1,128 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/* Copyright (C) 2021 Felix Fietkau <nbd@nbd.name> */
++
++#ifndef __MTK_WED_PRIV_H
++#define __MTK_WED_PRIV_H
++
++#include <linux/soc/mediatek/mtk_wed.h>
++#include <linux/debugfs.h>
++#include <linux/regmap.h>
++
++struct mtk_eth;
++
++struct mtk_wed_hw {
++ struct device_node *node;
++ struct mtk_eth *eth;
++ struct regmap *regs;
++ struct regmap *hifsys;
++ struct device *dev;
++ void __iomem *wdma;
++ struct regmap *mirror;
++ struct dentry *debugfs_dir;
++ struct mtk_wed_device *wed_dev;
++ u32 debugfs_reg;
++ u32 num_flows;
++ char dirname[5];
++ int irq;
++ int index;
++};
++
++
++#ifdef CONFIG_NET_MEDIATEK_SOC_WED
++static inline void
++wed_w32(struct mtk_wed_device *dev, u32 reg, u32 val)
++{
++ regmap_write(dev->hw->regs, reg, val);
++}
++
++static inline u32
++wed_r32(struct mtk_wed_device *dev, u32 reg)
++{
++ unsigned int val;
++
++ regmap_read(dev->hw->regs, reg, &val);
++
++ return val;
++}
++
++static inline void
++wdma_w32(struct mtk_wed_device *dev, u32 reg, u32 val)
++{
++ writel(val, dev->hw->wdma + reg);
++}
++
++static inline u32
++wdma_r32(struct mtk_wed_device *dev, u32 reg)
++{
++ return readl(dev->hw->wdma + reg);
++}
++
++static inline u32
++wpdma_tx_r32(struct mtk_wed_device *dev, int ring, u32 reg)
++{
++ if (!dev->tx_ring[ring].wpdma)
++ return 0;
++
++ return readl(dev->tx_ring[ring].wpdma + reg);
++}
++
++static inline void
++wpdma_tx_w32(struct mtk_wed_device *dev, int ring, u32 reg, u32 val)
++{
++ if (!dev->tx_ring[ring].wpdma)
++ return;
++
++ writel(val, dev->tx_ring[ring].wpdma + reg);
++}
++
++static inline u32
++wpdma_txfree_r32(struct mtk_wed_device *dev, u32 reg)
++{
++ if (!dev->txfree_ring.wpdma)
++ return 0;
++
++ return readl(dev->txfree_ring.wpdma + reg);
++}
++
++static inline void
++wpdma_txfree_w32(struct mtk_wed_device *dev, u32 reg, u32 val)
++{
++ if (!dev->txfree_ring.wpdma)
++ return;
++
++ writel(val, dev->txfree_ring.wpdma + reg);
++}
++
++void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
++ void __iomem *wdma, int index);
++void mtk_wed_exit(void);
++int mtk_wed_flow_add(int index);
++void mtk_wed_flow_remove(int index);
++#else
++static inline void
++mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
++ void __iomem *wdma, int index)
++{
++}
++static inline void
++mtk_wed_exit(void)
++{
++}
++static inline int mtk_wed_flow_add(int index)
++{
++ return -EINVAL;
++}
++static inline void mtk_wed_flow_remove(int index)
++{
++}
++#endif
++
++#ifdef CONFIG_DEBUG_FS
++void mtk_wed_hw_add_debugfs(struct mtk_wed_hw *hw);
++#else
++static inline void mtk_wed_hw_add_debugfs(struct mtk_wed_hw *hw)
++{
++}
++#endif
++
++#endif
+--- /dev/null
++++ b/drivers/net/ethernet/mediatek/mtk_wed_debugfs.c
+@@ -0,0 +1,175 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/* Copyright (C) 2021 Felix Fietkau <nbd@nbd.name> */
++
++#include <linux/seq_file.h>
++#include "mtk_wed.h"
++#include "mtk_wed_regs.h"
++
++struct reg_dump {
++ const char *name;
++ u16 offset;
++ u8 type;
++ u8 base;
++};
++
++enum {
++ DUMP_TYPE_STRING,
++ DUMP_TYPE_WED,
++ DUMP_TYPE_WDMA,
++ DUMP_TYPE_WPDMA_TX,
++ DUMP_TYPE_WPDMA_TXFREE,
++};
++
++#define DUMP_STR(_str) { _str, 0, DUMP_TYPE_STRING }
++#define DUMP_REG(_reg, ...) { #_reg, MTK_##_reg, __VA_ARGS__ }
++#define DUMP_RING(_prefix, _base, ...) \
++ { _prefix " BASE", _base, __VA_ARGS__ }, \
++ { _prefix " CNT", _base + 0x4, __VA_ARGS__ }, \
++ { _prefix " CIDX", _base + 0x8, __VA_ARGS__ }, \
++ { _prefix " DIDX", _base + 0xc, __VA_ARGS__ }
++
++#define DUMP_WED(_reg) DUMP_REG(_reg, DUMP_TYPE_WED)
++#define DUMP_WED_RING(_base) DUMP_RING(#_base, MTK_##_base, DUMP_TYPE_WED)
++
++#define DUMP_WDMA(_reg) DUMP_REG(_reg, DUMP_TYPE_WDMA)
++#define DUMP_WDMA_RING(_base) DUMP_RING(#_base, MTK_##_base, DUMP_TYPE_WDMA)
++
++#define DUMP_WPDMA_TX_RING(_n) DUMP_RING("WPDMA_TX" #_n, 0, DUMP_TYPE_WPDMA_TX, _n)
++#define DUMP_WPDMA_TXFREE_RING DUMP_RING("WPDMA_RX1", 0, DUMP_TYPE_WPDMA_TXFREE)
++
++static void
++print_reg_val(struct seq_file *s, const char *name, u32 val)
++{
++ seq_printf(s, "%-32s %08x\n", name, val);
++}
++
++static void
++dump_wed_regs(struct seq_file *s, struct mtk_wed_device *dev,
++ const struct reg_dump *regs, int n_regs)
++{
++ const struct reg_dump *cur;
++ u32 val;
++
++ for (cur = regs; cur < ®s[n_regs]; cur++) {
++ switch (cur->type) {
++ case DUMP_TYPE_STRING:
++ seq_printf(s, "%s======== %s:\n",
++ cur > regs ? "\n" : "",
++ cur->name);
++ continue;
++ case DUMP_TYPE_WED:
++ val = wed_r32(dev, cur->offset);
++ break;
++ case DUMP_TYPE_WDMA:
++ val = wdma_r32(dev, cur->offset);
++ break;
++ case DUMP_TYPE_WPDMA_TX:
++ val = wpdma_tx_r32(dev, cur->base, cur->offset);
++ break;
++ case DUMP_TYPE_WPDMA_TXFREE:
++ val = wpdma_txfree_r32(dev, cur->offset);
++ break;
++ }
++ print_reg_val(s, cur->name, val);
++ }
++}
++
++
++static int
++wed_txinfo_show(struct seq_file *s, void *data)
++{
++ static const struct reg_dump regs[] = {
++ DUMP_STR("WED TX"),
++ DUMP_WED(WED_TX_MIB(0)),
++ DUMP_WED_RING(WED_RING_TX(0)),
++
++ DUMP_WED(WED_TX_MIB(1)),
++ DUMP_WED_RING(WED_RING_TX(1)),
++
++ DUMP_STR("WPDMA TX"),
++ DUMP_WED(WED_WPDMA_TX_MIB(0)),
++ DUMP_WED_RING(WED_WPDMA_RING_TX(0)),
++ DUMP_WED(WED_WPDMA_TX_COHERENT_MIB(0)),
++
++ DUMP_WED(WED_WPDMA_TX_MIB(1)),
++ DUMP_WED_RING(WED_WPDMA_RING_TX(1)),
++ DUMP_WED(WED_WPDMA_TX_COHERENT_MIB(1)),
++
++ DUMP_STR("WPDMA TX"),
++ DUMP_WPDMA_TX_RING(0),
++ DUMP_WPDMA_TX_RING(1),
++
++ DUMP_STR("WED WDMA RX"),
++ DUMP_WED(WED_WDMA_RX_MIB(0)),
++ DUMP_WED_RING(WED_WDMA_RING_RX(0)),
++ DUMP_WED(WED_WDMA_RX_THRES(0)),
++ DUMP_WED(WED_WDMA_RX_RECYCLE_MIB(0)),
++ DUMP_WED(WED_WDMA_RX_PROCESSED_MIB(0)),
++
++ DUMP_WED(WED_WDMA_RX_MIB(1)),
++ DUMP_WED_RING(WED_WDMA_RING_RX(1)),
++ DUMP_WED(WED_WDMA_RX_THRES(1)),
++ DUMP_WED(WED_WDMA_RX_RECYCLE_MIB(1)),
++ DUMP_WED(WED_WDMA_RX_PROCESSED_MIB(1)),
++
++ DUMP_STR("WDMA RX"),
++ DUMP_WDMA(WDMA_GLO_CFG),
++ DUMP_WDMA_RING(WDMA_RING_RX(0)),
++ DUMP_WDMA_RING(WDMA_RING_RX(1)),
++ };
++ struct mtk_wed_hw *hw = s->private;
++ struct mtk_wed_device *dev = hw->wed_dev;
++
++ if (!dev)
++ return 0;
++
++ dump_wed_regs(s, dev, regs, ARRAY_SIZE(regs));
++
++ return 0;
++}
++DEFINE_SHOW_ATTRIBUTE(wed_txinfo);
++
++
++static int
++mtk_wed_reg_set(void *data, u64 val)
++{
++ struct mtk_wed_hw *hw = data;
++
++ regmap_write(hw->regs, hw->debugfs_reg, val);
++
++ return 0;
++}
++
++static int
++mtk_wed_reg_get(void *data, u64 *val)
++{
++ struct mtk_wed_hw *hw = data;
++ unsigned int regval;
++ int ret;
++
++ ret = regmap_read(hw->regs, hw->debugfs_reg, ®val);
++ if (ret)
++ return ret;
++
++ *val = regval;
++
++ return 0;
++}
++
++DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mtk_wed_reg_get, mtk_wed_reg_set,
++ "0x%08llx\n");
++
++void mtk_wed_hw_add_debugfs(struct mtk_wed_hw *hw)
++{
++ struct dentry *dir;
++
++ snprintf(hw->dirname, sizeof(hw->dirname), "wed%d", hw->index);
++ dir = debugfs_create_dir(hw->dirname, NULL);
++ if (!dir)
++ return;
++
++ hw->debugfs_dir = dir;
++ debugfs_create_u32("regidx", 0600, dir, &hw->debugfs_reg);
++ debugfs_create_file_unsafe("regval", 0600, dir, hw, &fops_regval);
++ debugfs_create_file_unsafe("txinfo", 0400, dir, hw, &wed_txinfo_fops);
++}
+--- /dev/null
++++ b/drivers/net/ethernet/mediatek/mtk_wed_ops.c
+@@ -0,0 +1,8 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/* Copyright (C) 2020 Felix Fietkau <nbd@nbd.name> */
++
++#include <linux/kernel.h>
++#include <linux/soc/mediatek/mtk_wed.h>
++
++const struct mtk_wed_ops __rcu *mtk_soc_wed_ops;
++EXPORT_SYMBOL_GPL(mtk_soc_wed_ops);
+--- /dev/null
++++ b/drivers/net/ethernet/mediatek/mtk_wed_regs.h
+@@ -0,0 +1,251 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/* Copyright (C) 2020 Felix Fietkau <nbd@nbd.name> */
++
++#ifndef __MTK_WED_REGS_H
++#define __MTK_WED_REGS_H
++
++#define MTK_WDMA_DESC_CTRL_LEN1 GENMASK(14, 0)
++#define MTK_WDMA_DESC_CTRL_LAST_SEG1 BIT(15)
++#define MTK_WDMA_DESC_CTRL_BURST BIT(16)
++#define MTK_WDMA_DESC_CTRL_LEN0 GENMASK(29, 16)
++#define MTK_WDMA_DESC_CTRL_LAST_SEG0 BIT(30)
++#define MTK_WDMA_DESC_CTRL_DMA_DONE BIT(31)
++
++struct mtk_wdma_desc {
++ __le32 buf0;
++ __le32 ctrl;
++ __le32 buf1;
++ __le32 info;
++} __packed __aligned(4);
++
++#define MTK_WED_RESET 0x008
++#define MTK_WED_RESET_TX_BM BIT(0)
++#define MTK_WED_RESET_TX_FREE_AGENT BIT(4)
++#define MTK_WED_RESET_WPDMA_TX_DRV BIT(8)
++#define MTK_WED_RESET_WPDMA_RX_DRV BIT(9)
++#define MTK_WED_RESET_WPDMA_INT_AGENT BIT(11)
++#define MTK_WED_RESET_WED_TX_DMA BIT(12)
++#define MTK_WED_RESET_WDMA_RX_DRV BIT(17)
++#define MTK_WED_RESET_WDMA_INT_AGENT BIT(19)
++#define MTK_WED_RESET_WED BIT(31)
++
++#define MTK_WED_CTRL 0x00c
++#define MTK_WED_CTRL_WPDMA_INT_AGENT_EN BIT(0)
++#define MTK_WED_CTRL_WPDMA_INT_AGENT_BUSY BIT(1)
++#define MTK_WED_CTRL_WDMA_INT_AGENT_EN BIT(2)
++#define MTK_WED_CTRL_WDMA_INT_AGENT_BUSY BIT(3)
++#define MTK_WED_CTRL_WED_TX_BM_EN BIT(8)
++#define MTK_WED_CTRL_WED_TX_BM_BUSY BIT(9)
++#define MTK_WED_CTRL_WED_TX_FREE_AGENT_EN BIT(10)
++#define MTK_WED_CTRL_WED_TX_FREE_AGENT_BUSY BIT(11)
++#define MTK_WED_CTRL_RESERVE_EN BIT(12)
++#define MTK_WED_CTRL_RESERVE_BUSY BIT(13)
++#define MTK_WED_CTRL_FINAL_DIDX_READ BIT(24)
++#define MTK_WED_CTRL_MIB_READ_CLEAR BIT(28)
++
++#define MTK_WED_EXT_INT_STATUS 0x020
++#define MTK_WED_EXT_INT_STATUS_TF_LEN_ERR BIT(0)
++#define MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD BIT(1)
++#define MTK_WED_EXT_INT_STATUS_TKID_TITO_INVALID BIT(4)
++#define MTK_WED_EXT_INT_STATUS_TX_FBUF_LO_TH BIT(8)
++#define MTK_WED_EXT_INT_STATUS_TX_FBUF_HI_TH BIT(9)
++#define MTK_WED_EXT_INT_STATUS_RX_FBUF_LO_TH BIT(12)
++#define MTK_WED_EXT_INT_STATUS_RX_FBUF_HI_TH BIT(13)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_R_RESP_ERR BIT(16)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_W_RESP_ERR BIT(17)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_COHERENT BIT(18)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_INIT_WDMA_EN BIT(19)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_BM_DMAD_COHERENT BIT(20)
++#define MTK_WED_EXT_INT_STATUS_TX_DRV_R_RESP_ERR BIT(21)
++#define MTK_WED_EXT_INT_STATUS_TX_DRV_W_RESP_ERR BIT(22)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_DMA_RECYCLE BIT(24)
++#define MTK_WED_EXT_INT_STATUS_ERROR_MASK (MTK_WED_EXT_INT_STATUS_TF_LEN_ERR | \
++ MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD | \
++ MTK_WED_EXT_INT_STATUS_TKID_TITO_INVALID | \
++ MTK_WED_EXT_INT_STATUS_RX_DRV_R_RESP_ERR | \
++ MTK_WED_EXT_INT_STATUS_RX_DRV_W_RESP_ERR | \
++ MTK_WED_EXT_INT_STATUS_RX_DRV_INIT_WDMA_EN | \
++ MTK_WED_EXT_INT_STATUS_TX_DRV_R_RESP_ERR | \
++ MTK_WED_EXT_INT_STATUS_TX_DRV_W_RESP_ERR)
++
++#define MTK_WED_EXT_INT_MASK 0x028
++
++#define MTK_WED_STATUS 0x060
++#define MTK_WED_STATUS_TX GENMASK(15, 8)
++
++#define MTK_WED_TX_BM_CTRL 0x080
++#define MTK_WED_TX_BM_CTRL_VLD_GRP_NUM GENMASK(6, 0)
++#define MTK_WED_TX_BM_CTRL_RSV_GRP_NUM GENMASK(22, 16)
++#define MTK_WED_TX_BM_CTRL_PAUSE BIT(28)
++
++#define MTK_WED_TX_BM_BASE 0x084
++
++#define MTK_WED_TX_BM_TKID 0x088
++#define MTK_WED_TX_BM_TKID_START GENMASK(15, 0)
++#define MTK_WED_TX_BM_TKID_END GENMASK(31, 16)
++
++#define MTK_WED_TX_BM_BUF_LEN 0x08c
++
++#define MTK_WED_TX_BM_INTF 0x09c
++#define MTK_WED_TX_BM_INTF_TKID GENMASK(15, 0)
++#define MTK_WED_TX_BM_INTF_TKFIFO_FDEP GENMASK(23, 16)
++#define MTK_WED_TX_BM_INTF_TKID_VALID BIT(28)
++#define MTK_WED_TX_BM_INTF_TKID_READ BIT(29)
++
++#define MTK_WED_TX_BM_DYN_THR 0x0a0
++#define MTK_WED_TX_BM_DYN_THR_LO GENMASK(6, 0)
++#define MTK_WED_TX_BM_DYN_THR_HI GENMASK(22, 16)
++
++#define MTK_WED_INT_STATUS 0x200
++#define MTK_WED_INT_MASK 0x204
++
++#define MTK_WED_GLO_CFG 0x208
++#define MTK_WED_GLO_CFG_TX_DMA_EN BIT(0)
++#define MTK_WED_GLO_CFG_TX_DMA_BUSY BIT(1)
++#define MTK_WED_GLO_CFG_RX_DMA_EN BIT(2)
++#define MTK_WED_GLO_CFG_RX_DMA_BUSY BIT(3)
++#define MTK_WED_GLO_CFG_RX_BT_SIZE GENMASK(5, 4)
++#define MTK_WED_GLO_CFG_TX_WB_DDONE BIT(6)
++#define MTK_WED_GLO_CFG_BIG_ENDIAN BIT(7)
++#define MTK_WED_GLO_CFG_DIS_BT_SIZE_ALIGN BIT(8)
++#define MTK_WED_GLO_CFG_TX_BT_SIZE_LO BIT(9)
++#define MTK_WED_GLO_CFG_MULTI_DMA_EN GENMASK(11, 10)
++#define MTK_WED_GLO_CFG_FIFO_LITTLE_ENDIAN BIT(12)
++#define MTK_WED_GLO_CFG_MI_DEPTH_RD GENMASK(21, 13)
++#define MTK_WED_GLO_CFG_TX_BT_SIZE_HI GENMASK(23, 22)
++#define MTK_WED_GLO_CFG_SW_RESET BIT(24)
++#define MTK_WED_GLO_CFG_FIRST_TOKEN_ONLY BIT(26)
++#define MTK_WED_GLO_CFG_OMIT_RX_INFO BIT(27)
++#define MTK_WED_GLO_CFG_OMIT_TX_INFO BIT(28)
++#define MTK_WED_GLO_CFG_BYTE_SWAP BIT(29)
++#define MTK_WED_GLO_CFG_RX_2B_OFFSET BIT(31)
++
++#define MTK_WED_RESET_IDX 0x20c
++#define MTK_WED_RESET_IDX_TX GENMASK(3, 0)
++#define MTK_WED_RESET_IDX_RX GENMASK(17, 16)
++
++#define MTK_WED_TX_MIB(_n) (0x2a0 + (_n) * 4)
++
++#define MTK_WED_RING_TX(_n) (0x300 + (_n) * 0x10)
++
++#define MTK_WED_RING_RX(_n) (0x400 + (_n) * 0x10)
++
++#define MTK_WED_WPDMA_INT_TRIGGER 0x504
++#define MTK_WED_WPDMA_INT_TRIGGER_RX_DONE BIT(1)
++#define MTK_WED_WPDMA_INT_TRIGGER_TX_DONE GENMASK(5, 4)
++
++#define MTK_WED_WPDMA_GLO_CFG 0x508
++#define MTK_WED_WPDMA_GLO_CFG_TX_DRV_EN BIT(0)
++#define MTK_WED_WPDMA_GLO_CFG_TX_DRV_BUSY BIT(1)
++#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_EN BIT(2)
++#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_BUSY BIT(3)
++#define MTK_WED_WPDMA_GLO_CFG_RX_BT_SIZE GENMASK(5, 4)
++#define MTK_WED_WPDMA_GLO_CFG_TX_WB_DDONE BIT(6)
++#define MTK_WED_WPDMA_GLO_CFG_BIG_ENDIAN BIT(7)
++#define MTK_WED_WPDMA_GLO_CFG_DIS_BT_SIZE_ALIGN BIT(8)
++#define MTK_WED_WPDMA_GLO_CFG_TX_BT_SIZE_LO BIT(9)
++#define MTK_WED_WPDMA_GLO_CFG_MULTI_DMA_EN GENMASK(11, 10)
++#define MTK_WED_WPDMA_GLO_CFG_FIFO_LITTLE_ENDIAN BIT(12)
++#define MTK_WED_WPDMA_GLO_CFG_MI_DEPTH_RD GENMASK(21, 13)
++#define MTK_WED_WPDMA_GLO_CFG_TX_BT_SIZE_HI GENMASK(23, 22)
++#define MTK_WED_WPDMA_GLO_CFG_SW_RESET BIT(24)
++#define MTK_WED_WPDMA_GLO_CFG_FIRST_TOKEN_ONLY BIT(26)
++#define MTK_WED_WPDMA_GLO_CFG_OMIT_RX_INFO BIT(27)
++#define MTK_WED_WPDMA_GLO_CFG_OMIT_TX_INFO BIT(28)
++#define MTK_WED_WPDMA_GLO_CFG_BYTE_SWAP BIT(29)
++#define MTK_WED_WPDMA_GLO_CFG_RX_2B_OFFSET BIT(31)
++
++#define MTK_WED_WPDMA_RESET_IDX 0x50c
++#define MTK_WED_WPDMA_RESET_IDX_TX GENMASK(3, 0)
++#define MTK_WED_WPDMA_RESET_IDX_RX GENMASK(17, 16)
++
++#define MTK_WED_WPDMA_INT_CTRL 0x520
++#define MTK_WED_WPDMA_INT_CTRL_SUBRT_ADV BIT(21)
++
++#define MTK_WED_WPDMA_INT_MASK 0x524
++
++#define MTK_WED_PCIE_CFG_BASE 0x560
++
++#define MTK_WED_PCIE_INT_TRIGGER 0x570
++#define MTK_WED_PCIE_INT_TRIGGER_STATUS BIT(16)
++
++#define MTK_WED_WPDMA_CFG_BASE 0x580
++
++#define MTK_WED_WPDMA_TX_MIB(_n) (0x5a0 + (_n) * 4)
++#define MTK_WED_WPDMA_TX_COHERENT_MIB(_n) (0x5d0 + (_n) * 4)
++
++#define MTK_WED_WPDMA_RING_TX(_n) (0x600 + (_n) * 0x10)
++#define MTK_WED_WPDMA_RING_RX(_n) (0x700 + (_n) * 0x10)
++#define MTK_WED_WDMA_RING_RX(_n) (0x900 + (_n) * 0x10)
++#define MTK_WED_WDMA_RX_THRES(_n) (0x940 + (_n) * 0x4)
++
++#define MTK_WED_WDMA_GLO_CFG 0xa04
++#define MTK_WED_WDMA_GLO_CFG_TX_DRV_EN BIT(0)
++#define MTK_WED_WDMA_GLO_CFG_RX_DRV_EN BIT(2)
++#define MTK_WED_WDMA_GLO_CFG_RX_DRV_BUSY BIT(3)
++#define MTK_WED_WDMA_GLO_CFG_BT_SIZE GENMASK(5, 4)
++#define MTK_WED_WDMA_GLO_CFG_TX_WB_DDONE BIT(6)
++#define MTK_WED_WDMA_GLO_CFG_RX_DIS_FSM_AUTO_IDLE BIT(13)
++#define MTK_WED_WDMA_GLO_CFG_WCOMPLETE_SEL BIT(16)
++#define MTK_WED_WDMA_GLO_CFG_INIT_PHASE_RXDMA_BYPASS BIT(17)
++#define MTK_WED_WDMA_GLO_CFG_INIT_PHASE_BYPASS BIT(18)
++#define MTK_WED_WDMA_GLO_CFG_FSM_RETURN_IDLE BIT(19)
++#define MTK_WED_WDMA_GLO_CFG_WAIT_COHERENT BIT(20)
++#define MTK_WED_WDMA_GLO_CFG_AXI_W_AFTER_AW BIT(21)
++#define MTK_WED_WDMA_GLO_CFG_IDLE_DMAD_SUPPLY_SINGLE_W BIT(22)
++#define MTK_WED_WDMA_GLO_CFG_IDLE_DMAD_SUPPLY BIT(23)
++#define MTK_WED_WDMA_GLO_CFG_DYNAMIC_SKIP_DMAD_PREP BIT(24)
++#define MTK_WED_WDMA_GLO_CFG_DYNAMIC_DMAD_RECYCLE BIT(25)
++#define MTK_WED_WDMA_GLO_CFG_RST_INIT_COMPLETE BIT(26)
++#define MTK_WED_WDMA_GLO_CFG_RXDRV_CLKGATE_BYPASS BIT(30)
++
++#define MTK_WED_WDMA_RESET_IDX 0xa08
++#define MTK_WED_WDMA_RESET_IDX_RX GENMASK(17, 16)
++#define MTK_WED_WDMA_RESET_IDX_DRV GENMASK(25, 24)
++
++#define MTK_WED_WDMA_INT_TRIGGER 0xa28
++#define MTK_WED_WDMA_INT_TRIGGER_RX_DONE GENMASK(17, 16)
++
++#define MTK_WED_WDMA_INT_CTRL 0xa2c
++#define MTK_WED_WDMA_INT_CTRL_POLL_SRC_SEL GENMASK(17, 16)
++
++#define MTK_WED_WDMA_OFFSET0 0xaa4
++#define MTK_WED_WDMA_OFFSET1 0xaa8
++
++#define MTK_WED_WDMA_RX_MIB(_n) (0xae0 + (_n) * 4)
++#define MTK_WED_WDMA_RX_RECYCLE_MIB(_n) (0xae8 + (_n) * 4)
++#define MTK_WED_WDMA_RX_PROCESSED_MIB(_n) (0xaf0 + (_n) * 4)
++
++#define MTK_WED_RING_OFS_BASE 0x00
++#define MTK_WED_RING_OFS_COUNT 0x04
++#define MTK_WED_RING_OFS_CPU_IDX 0x08
++#define MTK_WED_RING_OFS_DMA_IDX 0x0c
++
++#define MTK_WDMA_RING_RX(_n) (0x100 + (_n) * 0x10)
++
++#define MTK_WDMA_GLO_CFG 0x204
++#define MTK_WDMA_GLO_CFG_RX_INFO_PRERES GENMASK(28, 26)
++
++#define MTK_WDMA_RESET_IDX 0x208
++#define MTK_WDMA_RESET_IDX_TX GENMASK(3, 0)
++#define MTK_WDMA_RESET_IDX_RX GENMASK(17, 16)
++
++#define MTK_WDMA_INT_MASK 0x228
++#define MTK_WDMA_INT_MASK_TX_DONE GENMASK(3, 0)
++#define MTK_WDMA_INT_MASK_RX_DONE GENMASK(17, 16)
++#define MTK_WDMA_INT_MASK_TX_DELAY BIT(28)
++#define MTK_WDMA_INT_MASK_TX_COHERENT BIT(29)
++#define MTK_WDMA_INT_MASK_RX_DELAY BIT(30)
++#define MTK_WDMA_INT_MASK_RX_COHERENT BIT(31)
++
++#define MTK_WDMA_INT_GRP1 0x250
++#define MTK_WDMA_INT_GRP2 0x254
++
++#define MTK_PCIE_MIRROR_MAP(n) ((n) ? 0x4 : 0x0)
++#define MTK_PCIE_MIRROR_MAP_EN BIT(0)
++#define MTK_PCIE_MIRROR_MAP_WED_ID BIT(1)
++
++/* DMA channel mapping */
++#define HIFSYS_DMA_AG_MAP 0x008
++
++#endif
+--- /dev/null
++++ b/include/linux/soc/mediatek/mtk_wed.h
+@@ -0,0 +1,131 @@
++#ifndef __MTK_WED_H
++#define __MTK_WED_H
++
++#include <linux/kernel.h>
++#include <linux/rcupdate.h>
++#include <linux/regmap.h>
++#include <linux/pci.h>
++
++#define MTK_WED_TX_QUEUES 2
++
++struct mtk_wed_hw;
++struct mtk_wdma_desc;
++
++struct mtk_wed_ring {
++ struct mtk_wdma_desc *desc;
++ dma_addr_t desc_phys;
++ int size;
++
++ u32 reg_base;
++ void __iomem *wpdma;
++};
++
++struct mtk_wed_device {
++#ifdef CONFIG_NET_MEDIATEK_SOC_WED
++ const struct mtk_wed_ops *ops;
++ struct device *dev;
++ struct mtk_wed_hw *hw;
++ bool init_done, running;
++ int wdma_idx;
++ int irq;
++
++ struct mtk_wed_ring tx_ring[MTK_WED_TX_QUEUES];
++ struct mtk_wed_ring txfree_ring;
++ struct mtk_wed_ring tx_wdma[MTK_WED_TX_QUEUES];
++
++ struct {
++ int size;
++ void **pages;
++ struct mtk_wdma_desc *desc;
++ dma_addr_t desc_phys;
++ } buf_ring;
++
++ /* filled by driver: */
++ struct {
++ struct pci_dev *pci_dev;
++
++ u32 wpdma_phys;
++
++ u16 token_start;
++ unsigned int nbuf;
++
++ u32 (*init_buf)(void *ptr, dma_addr_t phys, int token_id);
++ int (*offload_enable)(struct mtk_wed_device *wed);
++ void (*offload_disable)(struct mtk_wed_device *wed);
++ } wlan;
++#endif
++};
++
++struct mtk_wed_ops {
++ int (*attach)(struct mtk_wed_device *dev);
++ int (*tx_ring_setup)(struct mtk_wed_device *dev, int ring,
++ void __iomem *regs);
++ int (*txfree_ring_setup)(struct mtk_wed_device *dev,
++ void __iomem *regs);
++ void (*detach)(struct mtk_wed_device *dev);
++
++ void (*stop)(struct mtk_wed_device *dev);
++ void (*start)(struct mtk_wed_device *dev, u32 irq_mask);
++ void (*reset_dma)(struct mtk_wed_device *dev);
++
++ u32 (*reg_read)(struct mtk_wed_device *dev, u32 reg);
++ void (*reg_write)(struct mtk_wed_device *dev, u32 reg, u32 val);
++
++ u32 (*irq_get)(struct mtk_wed_device *dev, u32 mask);
++ void (*irq_set_mask)(struct mtk_wed_device *dev, u32 mask);
++};
++
++extern const struct mtk_wed_ops __rcu *mtk_soc_wed_ops;
++
++static inline int
++mtk_wed_device_attach(struct mtk_wed_device *dev)
++{
++ int ret = -ENODEV;
++
++#ifdef CONFIG_NET_MEDIATEK_SOC_WED
++ rcu_read_lock();
++ dev->ops = rcu_dereference(mtk_soc_wed_ops);
++ if (dev->ops)
++ ret = dev->ops->attach(dev);
++ else
++ rcu_read_unlock();
++
++ if (ret)
++ dev->ops = NULL;
++#endif
++
++ return ret;
++}
++
++#ifdef CONFIG_NET_MEDIATEK_SOC_WED
++#define mtk_wed_device_active(_dev) !!(_dev)->ops
++#define mtk_wed_device_detach(_dev) (_dev)->ops->detach(_dev)
++#define mtk_wed_device_start(_dev, _mask) (_dev)->ops->start(_dev, _mask)
++#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs) \
++ (_dev)->ops->tx_ring_setup(_dev, _ring, _regs)
++#define mtk_wed_device_txfree_ring_setup(_dev, _regs) \
++ (_dev)->ops->txfree_ring_setup(_dev, _regs)
++#define mtk_wed_device_reg_read(_dev, _reg) \
++ (_dev)->ops->reg_read(_dev, _reg)
++#define mtk_wed_device_reg_write(_dev, _reg, _val) \
++ (_dev)->ops->reg_write(_dev, _reg, _val)
++#define mtk_wed_device_irq_get(_dev, _mask) \
++ (_dev)->ops->irq_get(_dev, _mask)
++#define mtk_wed_device_irq_set_mask(_dev, _mask) \
++ (_dev)->ops->irq_set_mask(_dev, _mask)
++#else
++static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
++{
++ return false;
++}
++#define mtk_wed_device_detach(_dev) do {} while (0)
++#define mtk_wed_device_start(_dev, _mask) do {} while (0)
++#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs) -ENODEV
++#define mtk_wed_device_txfree_ring_setup(_dev, _ring, _regs) -ENODEV
++#define mtk_wed_device_reg_read(_dev, _reg) 0
++#define mtk_wed_device_reg_write(_dev, _reg, _val) do {} while (0)
++#define mtk_wed_device_irq_get(_dev, _mask) 0
++#define mtk_wed_device_irq_set_mask(_dev, _mask) do {} while (0)
++#endif
++
++#endif
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 5 Feb 2022 18:29:22 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: implement flow offloading
+ to WED devices
+
+This allows hardware flow offloading from Ethernet to WLAN on MT7622 SoC
+
+Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
+Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -329,6 +329,24 @@ int mtk_foe_entry_set_pppoe(struct mtk_f
+ return 0;
+ }
+
++int mtk_foe_entry_set_wdma(struct mtk_foe_entry *entry, int wdma_idx, int txq,
++ int bss, int wcid)
++{
++ struct mtk_foe_mac_info *l2 = mtk_foe_entry_l2(entry);
++ u32 *ib2 = mtk_foe_entry_ib2(entry);
++
++ *ib2 &= ~MTK_FOE_IB2_PORT_MG;
++ *ib2 |= MTK_FOE_IB2_WDMA_WINFO;
++ if (wdma_idx)
++ *ib2 |= MTK_FOE_IB2_WDMA_DEVIDX;
++
++ l2->vlan2 = FIELD_PREP(MTK_FOE_VLAN2_WINFO_BSS, bss) |
++ FIELD_PREP(MTK_FOE_VLAN2_WINFO_WCID, wcid) |
++ FIELD_PREP(MTK_FOE_VLAN2_WINFO_RING, txq);
++
++ return 0;
++}
++
+ static inline bool mtk_foe_entry_usable(struct mtk_foe_entry *entry)
+ {
+ return !(entry->ib1 & MTK_FOE_IB1_STATIC) &&
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
+@@ -48,9 +48,9 @@ enum {
+ #define MTK_FOE_IB2_DEST_PORT GENMASK(7, 5)
+ #define MTK_FOE_IB2_MULTICAST BIT(8)
+
+-#define MTK_FOE_IB2_WHNAT_QID2 GENMASK(13, 12)
+-#define MTK_FOE_IB2_WHNAT_DEVIDX BIT(16)
+-#define MTK_FOE_IB2_WHNAT_NAT BIT(17)
++#define MTK_FOE_IB2_WDMA_QID2 GENMASK(13, 12)
++#define MTK_FOE_IB2_WDMA_DEVIDX BIT(16)
++#define MTK_FOE_IB2_WDMA_WINFO BIT(17)
+
+ #define MTK_FOE_IB2_PORT_MG GENMASK(17, 12)
+
+@@ -58,9 +58,9 @@ enum {
+
+ #define MTK_FOE_IB2_DSCP GENMASK(31, 24)
+
+-#define MTK_FOE_VLAN2_WHNAT_BSS GEMMASK(5, 0)
+-#define MTK_FOE_VLAN2_WHNAT_WCID GENMASK(13, 6)
+-#define MTK_FOE_VLAN2_WHNAT_RING GENMASK(15, 14)
++#define MTK_FOE_VLAN2_WINFO_BSS GENMASK(5, 0)
++#define MTK_FOE_VLAN2_WINFO_WCID GENMASK(13, 6)
++#define MTK_FOE_VLAN2_WINFO_RING GENMASK(15, 14)
+
+ enum {
+ MTK_FOE_STATE_INVALID,
+@@ -281,6 +281,8 @@ int mtk_foe_entry_set_ipv6_tuple(struct
+ int mtk_foe_entry_set_dsa(struct mtk_foe_entry *entry, int port);
+ int mtk_foe_entry_set_vlan(struct mtk_foe_entry *entry, int vid);
+ int mtk_foe_entry_set_pppoe(struct mtk_foe_entry *entry, int sid);
++int mtk_foe_entry_set_wdma(struct mtk_foe_entry *entry, int wdma_idx, int txq,
++ int bss, int wcid);
+ int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
+ u16 timestamp);
+ int mtk_ppe_debugfs_init(struct mtk_ppe *ppe);
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -11,6 +11,7 @@
+ #include <net/pkt_cls.h>
+ #include <net/dsa.h>
+ #include "mtk_eth_soc.h"
++#include "mtk_wed.h"
+
+ struct mtk_flow_data {
+ struct ethhdr eth;
+@@ -40,6 +41,7 @@ struct mtk_flow_entry {
+ struct rhash_head node;
+ unsigned long cookie;
+ u16 hash;
++ s8 wed_index;
+ };
+
+ static const struct rhashtable_params mtk_flow_ht_params = {
+@@ -81,6 +83,35 @@ mtk_flow_offload_mangle_eth(const struct
+ memcpy(dest, src, act->mangle.mask ? 2 : 4);
+ }
+
++static int
++mtk_flow_get_wdma_info(struct net_device *dev, const u8 *addr, struct mtk_wdma_info *info)
++{
++ struct net_device_path_ctx ctx = {
++ .dev = dev,
++ .daddr = addr,
++ };
++ struct net_device_path path = {};
++
++ if (!IS_ENABLED(CONFIG_NET_MEDIATEK_SOC_WED))
++ return -1;
++
++ if (!dev->netdev_ops->ndo_fill_forward_path)
++ return -1;
++
++ if (dev->netdev_ops->ndo_fill_forward_path(&ctx, &path))
++ return -1;
++
++ if (path.type != DEV_PATH_MTK_WDMA)
++ return -1;
++
++ info->wdma_idx = path.mtk_wdma.wdma_idx;
++ info->queue = path.mtk_wdma.queue;
++ info->bss = path.mtk_wdma.bss;
++ info->wcid = path.mtk_wdma.wcid;
++
++ return 0;
++}
++
+
+ static int
+ mtk_flow_mangle_ports(const struct flow_action_entry *act,
+@@ -150,10 +181,20 @@ mtk_flow_get_dsa_port(struct net_device
+
+ static int
+ mtk_flow_set_output_device(struct mtk_eth *eth, struct mtk_foe_entry *foe,
+- struct net_device *dev)
++ struct net_device *dev, const u8 *dest_mac,
++ int *wed_index)
+ {
++ struct mtk_wdma_info info = {};
+ int pse_port, dsa_port;
+
++ if (mtk_flow_get_wdma_info(dev, dest_mac, &info) == 0) {
++ mtk_foe_entry_set_wdma(foe, info.wdma_idx, info.queue, info.bss,
++ info.wcid);
++ pse_port = 3;
++ *wed_index = info.wdma_idx;
++ goto out;
++ }
++
+ dsa_port = mtk_flow_get_dsa_port(&dev);
+ if (dsa_port >= 0)
+ mtk_foe_entry_set_dsa(foe, dsa_port);
+@@ -165,6 +206,7 @@ mtk_flow_set_output_device(struct mtk_et
+ else
+ return -EOPNOTSUPP;
+
++out:
+ mtk_foe_entry_set_pse_port(foe, pse_port);
+
+ return 0;
+@@ -180,6 +222,7 @@ mtk_flow_offload_replace(struct mtk_eth
+ struct net_device *odev = NULL;
+ struct mtk_flow_entry *entry;
+ int offload_type = 0;
++ int wed_index = -1;
+ u16 addr_type = 0;
+ u32 timestamp;
+ u8 l4proto = 0;
+@@ -327,10 +370,14 @@ mtk_flow_offload_replace(struct mtk_eth
+ if (data.pppoe.num == 1)
+ mtk_foe_entry_set_pppoe(&foe, data.pppoe.sid);
+
+- err = mtk_flow_set_output_device(eth, &foe, odev);
++ err = mtk_flow_set_output_device(eth, &foe, odev, data.eth.h_dest,
++ &wed_index);
+ if (err)
+ return err;
+
++ if (wed_index >= 0 && (err = mtk_wed_flow_add(wed_index)) < 0)
++ return err;
++
+ entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+@@ -344,6 +391,7 @@ mtk_flow_offload_replace(struct mtk_eth
+ }
+
+ entry->hash = hash;
++ entry->wed_index = wed_index;
+ err = rhashtable_insert_fast(ð->flow_table, &entry->node,
+ mtk_flow_ht_params);
+ if (err < 0)
+@@ -354,6 +402,8 @@ clear_flow:
+ mtk_foe_entry_clear(ð->ppe, hash);
+ free:
+ kfree(entry);
++ if (wed_index >= 0)
++ mtk_wed_flow_remove(wed_index);
+ return err;
+ }
+
+@@ -370,6 +420,8 @@ mtk_flow_offload_destroy(struct mtk_eth
+ mtk_foe_entry_clear(ð->ppe, entry->hash);
+ rhashtable_remove_fast(ð->flow_table, &entry->node,
+ mtk_flow_ht_params);
++ if (entry->wed_index >= 0)
++ mtk_wed_flow_remove(entry->wed_index);
+ kfree(entry);
+
+ return 0;
+--- a/drivers/net/ethernet/mediatek/mtk_wed.h
++++ b/drivers/net/ethernet/mediatek/mtk_wed.h
+@@ -7,6 +7,7 @@
+ #include <linux/soc/mediatek/mtk_wed.h>
+ #include <linux/debugfs.h>
+ #include <linux/regmap.h>
++#include <linux/netdevice.h>
+
+ struct mtk_eth;
+
+@@ -27,6 +28,12 @@ struct mtk_wed_hw {
+ int index;
+ };
+
++struct mtk_wdma_info {
++ u8 wdma_idx;
++ u8 queue;
++ u16 wcid;
++ u8 bss;
++};
+
+ #ifdef CONFIG_NET_MEDIATEK_SOC_WED
+ static inline void
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -833,6 +833,7 @@ enum net_device_path_type {
+ DEV_PATH_BRIDGE,
+ DEV_PATH_PPPOE,
+ DEV_PATH_DSA,
++ DEV_PATH_MTK_WDMA,
+ };
+
+ struct net_device_path {
+@@ -858,6 +859,12 @@ struct net_device_path {
+ int port;
+ u16 proto;
+ } dsa;
++ struct {
++ u8 wdma_idx;
++ u8 queue;
++ u16 wcid;
++ u8 bss;
++ } mtk_wdma;
+ };
+ };
+
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -883,6 +883,10 @@ int dev_fill_forward_path(const struct n
+ if (WARN_ON_ONCE(last_dev == ctx.dev))
+ return -1;
+ }
++
++ if (!ctx.dev)
++ return ret;
++
+ path = dev_fwd_path(stack);
+ if (!path)
+ return -1;
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 5 Feb 2022 18:36:36 +0100
+Subject: [PATCH] arm64: dts: mediatek: mt7622: introduce nodes for
+ Wireless Ethernet Dispatch
+
+Introduce wed0 and wed1 nodes in order to enable offloading forwarding
+between ethernet and wireless devices on the mt7622 chipset.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
++++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+@@ -892,6 +892,11 @@
+ };
+ };
+
++ hifsys: syscon@1af00000 {
++ compatible = "mediatek,mt7622-hifsys", "syscon";
++ reg = <0 0x1af00000 0 0x70>;
++ };
++
+ ethsys: syscon@1b000000 {
+ compatible = "mediatek,mt7622-ethsys",
+ "syscon";
+@@ -910,6 +915,26 @@
+ #dma-cells = <1>;
+ };
+
++ pcie_mirror: pcie-mirror@10000400 {
++ compatible = "mediatek,mt7622-pcie-mirror",
++ "syscon";
++ reg = <0 0x10000400 0 0x10>;
++ };
++
++ wed0: wed@1020a000 {
++ compatible = "mediatek,mt7622-wed",
++ "syscon";
++ reg = <0 0x1020a000 0 0x1000>;
++ interrupts = <GIC_SPI 214 IRQ_TYPE_LEVEL_LOW>;
++ };
++
++ wed1: wed@1020b000 {
++ compatible = "mediatek,mt7622-wed",
++ "syscon";
++ reg = <0 0x1020b000 0 0x1000>;
++ interrupts = <GIC_SPI 215 IRQ_TYPE_LEVEL_LOW>;
++ };
++
+ eth: ethernet@1b100000 {
+ compatible = "mediatek,mt7622-eth",
+ "mediatek,mt2701-eth",
+@@ -937,6 +962,9 @@
+ mediatek,ethsys = <ðsys>;
+ mediatek,sgmiisys = <&sgmiisys>;
+ mediatek,cci-control = <&cci_control2>;
++ mediatek,wed = <&wed0>, <&wed1>;
++ mediatek,pcie-mirror = <&pcie_mirror>;
++ mediatek,hifsys = <&hifsys>;
+ dma-coherent;
+ #address-cells = <1>;
+ #size-cells = <0>;
--- /dev/null
+From: David Bentham <db260179@gmail.com>
+Date: Mon, 21 Feb 2022 15:36:16 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: add ipv6 flow offload
+ support
+
+Add the missing IPv6 flow offloading support for routing only.
+Hardware flow offloading is done by the packet processing engine (PPE)
+of the Ethernet MAC and as it doesn't support mangling of IPv6 packets,
+IPv6 NAT cannot be supported.
+
+Signed-off-by: David Bentham <db260179@gmail.com>
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -7,6 +7,7 @@
+ #include <linux/rhashtable.h>
+ #include <linux/if_ether.h>
+ #include <linux/ip.h>
++#include <linux/ipv6.h>
+ #include <net/flow_offload.h>
+ #include <net/pkt_cls.h>
+ #include <net/dsa.h>
+@@ -21,6 +22,11 @@ struct mtk_flow_data {
+ __be32 src_addr;
+ __be32 dst_addr;
+ } v4;
++
++ struct {
++ struct in6_addr src_addr;
++ struct in6_addr dst_addr;
++ } v6;
+ };
+
+ __be16 src_port;
+@@ -66,6 +72,14 @@ mtk_flow_set_ipv4_addr(struct mtk_foe_en
+ data->v4.dst_addr, data->dst_port);
+ }
+
++static int
++mtk_flow_set_ipv6_addr(struct mtk_foe_entry *foe, struct mtk_flow_data *data)
++{
++ return mtk_foe_entry_set_ipv6_tuple(foe,
++ data->v6.src_addr.s6_addr32, data->src_port,
++ data->v6.dst_addr.s6_addr32, data->dst_port);
++}
++
+ static void
+ mtk_flow_offload_mangle_eth(const struct flow_action_entry *act, void *eth)
+ {
+@@ -297,6 +311,9 @@ mtk_flow_offload_replace(struct mtk_eth
+ case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
+ offload_type = MTK_PPE_PKT_TYPE_IPV4_HNAPT;
+ break;
++ case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
++ offload_type = MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T;
++ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+@@ -332,6 +349,17 @@ mtk_flow_offload_replace(struct mtk_eth
+ mtk_flow_set_ipv4_addr(&foe, &data, false);
+ }
+
++ if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
++ struct flow_match_ipv6_addrs addrs;
++
++ flow_rule_match_ipv6_addrs(rule, &addrs);
++
++ data.v6.src_addr = addrs.key->src;
++ data.v6.dst_addr = addrs.key->dst;
++
++ mtk_flow_set_ipv6_addr(&foe, &data);
++ }
++
+ flow_action_for_each(i, act, &rule->action) {
+ if (act->id != FLOW_ACTION_MANGLE)
+ continue;
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 21 Feb 2022 15:37:21 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: support TC_SETUP_BLOCK for
+ PPE offload
+
+This allows offload entries to be created from user space
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -564,10 +564,13 @@ mtk_eth_setup_tc_block(struct net_device
+ int mtk_eth_setup_tc(struct net_device *dev, enum tc_setup_type type,
+ void *type_data)
+ {
+- if (type == TC_SETUP_FT)
++ switch (type) {
++ case TC_SETUP_BLOCK:
++ case TC_SETUP_FT:
+ return mtk_eth_setup_tc_block(dev, type_data);
+-
+- return -EOPNOTSUPP;
++ default:
++ return -EOPNOTSUPP;
++ }
+ }
+
+ int mtk_eth_offload_init(struct mtk_eth *eth)
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 21 Feb 2022 15:38:20 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: allocate struct mtk_ppe
+ separately
+
+Preparation for adding more data to it, which will increase its size.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -2305,7 +2305,7 @@ static int mtk_open(struct net_device *d
+ if (err)
+ return err;
+
+- if (eth->soc->offload_version && mtk_ppe_start(ð->ppe) == 0)
++ if (eth->soc->offload_version && mtk_ppe_start(eth->ppe) == 0)
+ gdm_config = MTK_GDMA_TO_PPE;
+
+ mtk_gdm_config(eth, gdm_config);
+@@ -2379,7 +2379,7 @@ static int mtk_stop(struct net_device *d
+ mtk_dma_free(eth);
+
+ if (eth->soc->offload_version)
+- mtk_ppe_stop(ð->ppe);
++ mtk_ppe_stop(eth->ppe);
+
+ return 0;
+ }
+@@ -3265,10 +3265,11 @@ static int mtk_probe(struct platform_dev
+ }
+
+ if (eth->soc->offload_version) {
+- err = mtk_ppe_init(ð->ppe, eth->dev,
+- eth->base + MTK_ETH_PPE_BASE, 2);
+- if (err)
++ eth->ppe = mtk_ppe_init(eth->dev, eth->base + MTK_ETH_PPE_BASE, 2);
++ if (!eth->ppe) {
++ err = -ENOMEM;
+ goto err_free_dev;
++ }
+
+ err = mtk_eth_offload_init(eth);
+ if (err)
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+@@ -976,7 +976,7 @@ struct mtk_eth {
+ u32 rx_dma_l4_valid;
+ int ip_align;
+
+- struct mtk_ppe ppe;
++ struct mtk_ppe *ppe;
+ struct rhashtable flow_table;
+ };
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -384,10 +384,15 @@ int mtk_foe_entry_commit(struct mtk_ppe
+ return hash;
+ }
+
+-int mtk_ppe_init(struct mtk_ppe *ppe, struct device *dev, void __iomem *base,
++struct mtk_ppe *mtk_ppe_init(struct device *dev, void __iomem *base,
+ int version)
+ {
+ struct mtk_foe_entry *foe;
++ struct mtk_ppe *ppe;
++
++ ppe = devm_kzalloc(dev, sizeof(*ppe), GFP_KERNEL);
++ if (!ppe)
++ return NULL;
+
+ /* need to allocate a separate device, since it PPE DMA access is
+ * not coherent.
+@@ -399,13 +404,13 @@ int mtk_ppe_init(struct mtk_ppe *ppe, st
+ foe = dmam_alloc_coherent(ppe->dev, MTK_PPE_ENTRIES * sizeof(*foe),
+ &ppe->foe_phys, GFP_KERNEL);
+ if (!foe)
+- return -ENOMEM;
++ return NULL;
+
+ ppe->foe_table = foe;
+
+ mtk_ppe_debugfs_init(ppe);
+
+- return 0;
++ return ppe;
+ }
+
+ static void mtk_ppe_init_foe_table(struct mtk_ppe *ppe)
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
+@@ -246,8 +246,7 @@ struct mtk_ppe {
+ void *acct_table;
+ };
+
+-int mtk_ppe_init(struct mtk_ppe *ppe, struct device *dev, void __iomem *base,
+- int version);
++struct mtk_ppe *mtk_ppe_init(struct device *dev, void __iomem *base, int version);
+ int mtk_ppe_start(struct mtk_ppe *ppe);
+ int mtk_ppe_stop(struct mtk_ppe *ppe);
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -412,7 +412,7 @@ mtk_flow_offload_replace(struct mtk_eth
+
+ entry->cookie = f->cookie;
+ timestamp = mtk_eth_timestamp(eth);
+- hash = mtk_foe_entry_commit(ð->ppe, &foe, timestamp);
++ hash = mtk_foe_entry_commit(eth->ppe, &foe, timestamp);
+ if (hash < 0) {
+ err = hash;
+ goto free;
+@@ -427,7 +427,7 @@ mtk_flow_offload_replace(struct mtk_eth
+
+ return 0;
+ clear_flow:
+- mtk_foe_entry_clear(ð->ppe, hash);
++ mtk_foe_entry_clear(eth->ppe, hash);
+ free:
+ kfree(entry);
+ if (wed_index >= 0)
+@@ -445,7 +445,7 @@ mtk_flow_offload_destroy(struct mtk_eth
+ if (!entry)
+ return -ENOENT;
+
+- mtk_foe_entry_clear(ð->ppe, entry->hash);
++ mtk_foe_entry_clear(eth->ppe, entry->hash);
+ rhashtable_remove_fast(ð->flow_table, &entry->node,
+ mtk_flow_ht_params);
+ if (entry->wed_index >= 0)
+@@ -467,7 +467,7 @@ mtk_flow_offload_stats(struct mtk_eth *e
+ if (!entry)
+ return -ENOENT;
+
+- timestamp = mtk_foe_entry_timestamp(ð->ppe, entry->hash);
++ timestamp = mtk_foe_entry_timestamp(eth->ppe, entry->hash);
+ if (timestamp < 0)
+ return -ETIMEDOUT;
+
+@@ -523,7 +523,7 @@ mtk_eth_setup_tc_block(struct net_device
+ struct flow_block_cb *block_cb;
+ flow_setup_cb_t *cb;
+
+- if (!eth->ppe.foe_table)
++ if (!eth->ppe || !eth->ppe->foe_table)
+ return -EOPNOTSUPP;
+
+ if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
+@@ -575,7 +575,7 @@ int mtk_eth_setup_tc(struct net_device *
+
+ int mtk_eth_offload_init(struct mtk_eth *eth)
+ {
+- if (!eth->ppe.foe_table)
++ if (!eth->ppe || !eth->ppe->foe_table)
+ return 0;
+
+ return rhashtable_init(ð->flow_table, &mtk_flow_ht_params);
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 21 Feb 2022 15:39:18 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: rework hardware flow table
+ management
+
+The hardware was designed to handle flow detection and creation of flow entries
+by itself, relying on the software primarily for filling in egress routing
+information.
+When there is a hash collision between multiple flows, this allows the hardware
+to maintain the entry for the most active flow.
+Additionally, the hardware only keeps offloading active for entries with at
+least 30 packets per second.
+
+With this rework, the code no longer creates a hardware entries directly.
+Instead, the hardware entry is only created when the PPE reports a matching
+unbound flow with the minimum target rate.
+In order to reduce CPU overhead, looking for flows belonging to a hash entry
+is rate limited to once every 100ms.
+
+This rework is also used as preparation for emulating bridge offload by
+managing L4 offload entries on demand.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -21,6 +21,7 @@
+ #include <linux/pinctrl/devinfo.h>
+ #include <linux/phylink.h>
+ #include <linux/jhash.h>
++#include <linux/bitfield.h>
+ #include <net/dsa.h>
+
+ #include "mtk_eth_soc.h"
+@@ -1274,7 +1275,7 @@ static int mtk_poll_rx(struct napi_struc
+ struct net_device *netdev;
+ unsigned int pktlen;
+ dma_addr_t dma_addr;
+- u32 hash;
++ u32 hash, reason;
+ int mac;
+
+ ring = mtk_get_rx_ring(eth);
+@@ -1350,6 +1351,11 @@ static int mtk_poll_rx(struct napi_struc
+ skb_set_hash(skb, hash, PKT_HASH_TYPE_L4);
+ }
+
++ reason = FIELD_GET(MTK_RXD4_PPE_CPU_REASON, trxd.rxd4);
++ if (reason == MTK_PPE_CPU_REASON_HIT_UNBIND_RATE_REACHED)
++ mtk_ppe_check_skb(eth->ppe, skb,
++ trxd.rxd4 & MTK_RXD4_FOE_ENTRY);
++
+ if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX &&
+ (trxd.rxd2 & RX_DMA_VTAG))
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
+@@ -3265,7 +3271,7 @@ static int mtk_probe(struct platform_dev
+ }
+
+ if (eth->soc->offload_version) {
+- eth->ppe = mtk_ppe_init(eth->dev, eth->base + MTK_ETH_PPE_BASE, 2);
++ eth->ppe = mtk_ppe_init(eth, eth->base + MTK_ETH_PPE_BASE, 2);
+ if (!eth->ppe) {
+ err = -ENOMEM;
+ goto err_free_dev;
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -6,9 +6,12 @@
+ #include <linux/iopoll.h>
+ #include <linux/etherdevice.h>
+ #include <linux/platform_device.h>
++#include "mtk_eth_soc.h"
+ #include "mtk_ppe.h"
+ #include "mtk_ppe_regs.h"
+
++static DEFINE_SPINLOCK(ppe_lock);
++
+ static void ppe_w32(struct mtk_ppe *ppe, u32 reg, u32 val)
+ {
+ writel(val, ppe->base + reg);
+@@ -41,6 +44,11 @@ static u32 ppe_clear(struct mtk_ppe *ppe
+ return ppe_m32(ppe, reg, val, 0);
+ }
+
++static u32 mtk_eth_timestamp(struct mtk_eth *eth)
++{
++ return mtk_r32(eth, 0x0010) & MTK_FOE_IB1_BIND_TIMESTAMP;
++}
++
+ static int mtk_ppe_wait_busy(struct mtk_ppe *ppe)
+ {
+ int ret;
+@@ -353,26 +361,59 @@ static inline bool mtk_foe_entry_usable(
+ FIELD_GET(MTK_FOE_IB1_STATE, entry->ib1) != MTK_FOE_STATE_BIND;
+ }
+
+-int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
+- u16 timestamp)
++static bool
++mtk_flow_entry_match(struct mtk_flow_entry *entry, struct mtk_foe_entry *data)
++{
++ int type, len;
++
++ if ((data->ib1 ^ entry->data.ib1) & MTK_FOE_IB1_UDP)
++ return false;
++
++ type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->data.ib1);
++ if (type > MTK_PPE_PKT_TYPE_IPV4_DSLITE)
++ len = offsetof(struct mtk_foe_entry, ipv6._rsv);
++ else
++ len = offsetof(struct mtk_foe_entry, ipv4.ib2);
++
++ return !memcmp(&entry->data.data, &data->data, len - 4);
++}
++
++static void
++mtk_flow_entry_update(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
+ {
+ struct mtk_foe_entry *hwe;
+- u32 hash;
++ struct mtk_foe_entry foe;
+
++ spin_lock_bh(&ppe_lock);
++ if (entry->hash == 0xffff)
++ goto out;
++
++ hwe = &ppe->foe_table[entry->hash];
++ memcpy(&foe, hwe, sizeof(foe));
++ if (!mtk_flow_entry_match(entry, &foe)) {
++ entry->hash = 0xffff;
++ goto out;
++ }
++
++ entry->data.ib1 = foe.ib1;
++
++out:
++ spin_unlock_bh(&ppe_lock);
++}
++
++static void
++__mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
++ u16 hash)
++{
++ struct mtk_foe_entry *hwe;
++ u16 timestamp;
++
++ timestamp = mtk_eth_timestamp(ppe->eth);
+ timestamp &= MTK_FOE_IB1_BIND_TIMESTAMP;
+ entry->ib1 &= ~MTK_FOE_IB1_BIND_TIMESTAMP;
+ entry->ib1 |= FIELD_PREP(MTK_FOE_IB1_BIND_TIMESTAMP, timestamp);
+
+- hash = mtk_ppe_hash_entry(entry);
+ hwe = &ppe->foe_table[hash];
+- if (!mtk_foe_entry_usable(hwe)) {
+- hwe++;
+- hash++;
+-
+- if (!mtk_foe_entry_usable(hwe))
+- return -ENOSPC;
+- }
+-
+ memcpy(&hwe->data, &entry->data, sizeof(hwe->data));
+ wmb();
+ hwe->ib1 = entry->ib1;
+@@ -380,13 +421,77 @@ int mtk_foe_entry_commit(struct mtk_ppe
+ dma_wmb();
+
+ mtk_ppe_cache_clear(ppe);
++}
+
+- return hash;
++void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ spin_lock_bh(&ppe_lock);
++ hlist_del_init(&entry->list);
++ if (entry->hash != 0xffff) {
++ ppe->foe_table[entry->hash].ib1 &= ~MTK_FOE_IB1_STATE;
++ ppe->foe_table[entry->hash].ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE,
++ MTK_FOE_STATE_BIND);
++ dma_wmb();
++ }
++ entry->hash = 0xffff;
++ spin_unlock_bh(&ppe_lock);
++}
++
++int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ u32 hash = mtk_ppe_hash_entry(&entry->data);
++
++ entry->hash = 0xffff;
++ spin_lock_bh(&ppe_lock);
++ hlist_add_head(&entry->list, &ppe->foe_flow[hash / 2]);
++ spin_unlock_bh(&ppe_lock);
++
++ return 0;
++}
++
++void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash)
++{
++ struct hlist_head *head = &ppe->foe_flow[hash / 2];
++ struct mtk_flow_entry *entry;
++ struct mtk_foe_entry *hwe = &ppe->foe_table[hash];
++ bool found = false;
++
++ if (hlist_empty(head))
++ return;
++
++ spin_lock_bh(&ppe_lock);
++ hlist_for_each_entry(entry, head, list) {
++ if (found || !mtk_flow_entry_match(entry, hwe)) {
++ if (entry->hash != 0xffff)
++ entry->hash = 0xffff;
++ continue;
++ }
++
++ entry->hash = hash;
++ __mtk_foe_entry_commit(ppe, &entry->data, hash);
++ found = true;
++ }
++ spin_unlock_bh(&ppe_lock);
++}
++
++int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ u16 now = mtk_eth_timestamp(ppe->eth) & MTK_FOE_IB1_BIND_TIMESTAMP;
++ u16 timestamp;
++
++ mtk_flow_entry_update(ppe, entry);
++ timestamp = entry->data.ib1 & MTK_FOE_IB1_BIND_TIMESTAMP;
++
++ if (timestamp > now)
++ return MTK_FOE_IB1_BIND_TIMESTAMP + 1 - timestamp + now;
++ else
++ return now - timestamp;
+ }
+
+-struct mtk_ppe *mtk_ppe_init(struct device *dev, void __iomem *base,
++struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
+ int version)
+ {
++ struct device *dev = eth->dev;
+ struct mtk_foe_entry *foe;
+ struct mtk_ppe *ppe;
+
+@@ -398,6 +503,7 @@ struct mtk_ppe *mtk_ppe_init(struct devi
+ * not coherent.
+ */
+ ppe->base = base;
++ ppe->eth = eth;
+ ppe->dev = dev;
+ ppe->version = version;
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
+@@ -235,7 +235,17 @@ enum {
+ MTK_PPE_CPU_REASON_INVALID = 0x1f,
+ };
+
++struct mtk_flow_entry {
++ struct rhash_head node;
++ struct hlist_node list;
++ unsigned long cookie;
++ struct mtk_foe_entry data;
++ u16 hash;
++ s8 wed_index;
++};
++
+ struct mtk_ppe {
++ struct mtk_eth *eth;
+ struct device *dev;
+ void __iomem *base;
+ int version;
+@@ -243,18 +253,33 @@ struct mtk_ppe {
+ struct mtk_foe_entry *foe_table;
+ dma_addr_t foe_phys;
+
++ u16 foe_check_time[MTK_PPE_ENTRIES];
++ struct hlist_head foe_flow[MTK_PPE_ENTRIES / 2];
++
+ void *acct_table;
+ };
+
+-struct mtk_ppe *mtk_ppe_init(struct device *dev, void __iomem *base, int version);
++struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base, int version);
+ int mtk_ppe_start(struct mtk_ppe *ppe);
+ int mtk_ppe_stop(struct mtk_ppe *ppe);
+
++void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash);
++
+ static inline void
+-mtk_foe_entry_clear(struct mtk_ppe *ppe, u16 hash)
++mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash)
+ {
+- ppe->foe_table[hash].ib1 = 0;
+- dma_wmb();
++ u16 now, diff;
++
++ if (!ppe)
++ return;
++
++ now = (u16)jiffies;
++ diff = now - ppe->foe_check_time[hash];
++ if (diff < HZ / 10)
++ return;
++
++ ppe->foe_check_time[hash] = now;
++ __mtk_ppe_check_skb(ppe, skb, hash);
+ }
+
+ static inline int
+@@ -282,8 +307,9 @@ int mtk_foe_entry_set_vlan(struct mtk_fo
+ int mtk_foe_entry_set_pppoe(struct mtk_foe_entry *entry, int sid);
+ int mtk_foe_entry_set_wdma(struct mtk_foe_entry *entry, int wdma_idx, int txq,
+ int bss, int wcid);
+-int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
+- u16 timestamp);
++int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
++void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
++int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
+ int mtk_ppe_debugfs_init(struct mtk_ppe *ppe);
+
+ #endif
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -43,13 +43,6 @@ struct mtk_flow_data {
+ } pppoe;
+ };
+
+-struct mtk_flow_entry {
+- struct rhash_head node;
+- unsigned long cookie;
+- u16 hash;
+- s8 wed_index;
+-};
+-
+ static const struct rhashtable_params mtk_flow_ht_params = {
+ .head_offset = offsetof(struct mtk_flow_entry, node),
+ .key_offset = offsetof(struct mtk_flow_entry, cookie),
+@@ -57,12 +50,6 @@ static const struct rhashtable_params mt
+ .automatic_shrinking = true,
+ };
+
+-static u32
+-mtk_eth_timestamp(struct mtk_eth *eth)
+-{
+- return mtk_r32(eth, 0x0010) & MTK_FOE_IB1_BIND_TIMESTAMP;
+-}
+-
+ static int
+ mtk_flow_set_ipv4_addr(struct mtk_foe_entry *foe, struct mtk_flow_data *data,
+ bool egress)
+@@ -238,10 +225,8 @@ mtk_flow_offload_replace(struct mtk_eth
+ int offload_type = 0;
+ int wed_index = -1;
+ u16 addr_type = 0;
+- u32 timestamp;
+ u8 l4proto = 0;
+ int err = 0;
+- int hash;
+ int i;
+
+ if (rhashtable_lookup(ð->flow_table, &f->cookie, mtk_flow_ht_params))
+@@ -411,23 +396,21 @@ mtk_flow_offload_replace(struct mtk_eth
+ return -ENOMEM;
+
+ entry->cookie = f->cookie;
+- timestamp = mtk_eth_timestamp(eth);
+- hash = mtk_foe_entry_commit(eth->ppe, &foe, timestamp);
+- if (hash < 0) {
+- err = hash;
++ memcpy(&entry->data, &foe, sizeof(entry->data));
++ entry->wed_index = wed_index;
++
++ if (mtk_foe_entry_commit(eth->ppe, entry) < 0)
+ goto free;
+- }
+
+- entry->hash = hash;
+- entry->wed_index = wed_index;
+ err = rhashtable_insert_fast(ð->flow_table, &entry->node,
+ mtk_flow_ht_params);
+ if (err < 0)
+- goto clear_flow;
++ goto clear;
+
+ return 0;
+-clear_flow:
+- mtk_foe_entry_clear(eth->ppe, hash);
++
++clear:
++ mtk_foe_entry_clear(eth->ppe, entry);
+ free:
+ kfree(entry);
+ if (wed_index >= 0)
+@@ -445,7 +428,7 @@ mtk_flow_offload_destroy(struct mtk_eth
+ if (!entry)
+ return -ENOENT;
+
+- mtk_foe_entry_clear(eth->ppe, entry->hash);
++ mtk_foe_entry_clear(eth->ppe, entry);
+ rhashtable_remove_fast(ð->flow_table, &entry->node,
+ mtk_flow_ht_params);
+ if (entry->wed_index >= 0)
+@@ -459,7 +442,6 @@ static int
+ mtk_flow_offload_stats(struct mtk_eth *eth, struct flow_cls_offload *f)
+ {
+ struct mtk_flow_entry *entry;
+- int timestamp;
+ u32 idle;
+
+ entry = rhashtable_lookup(ð->flow_table, &f->cookie,
+@@ -467,11 +449,7 @@ mtk_flow_offload_stats(struct mtk_eth *e
+ if (!entry)
+ return -ENOENT;
+
+- timestamp = mtk_foe_entry_timestamp(eth->ppe, entry->hash);
+- if (timestamp < 0)
+- return -ETIMEDOUT;
+-
+- idle = mtk_eth_timestamp(eth) - timestamp;
++ idle = mtk_foe_entry_idle_time(eth->ppe, entry);
+ f->stats.lastused = jiffies - idle * HZ;
+
+ return 0;
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 21 Feb 2022 15:55:19 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: remove bridge flow offload
+ type entry support
+
+According to MediaTek, this feature is not supported in current hardware
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -84,13 +84,6 @@ static u32 mtk_ppe_hash_entry(struct mtk
+ u32 hash;
+
+ switch (FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, e->ib1)) {
+- case MTK_PPE_PKT_TYPE_BRIDGE:
+- hv1 = e->bridge.src_mac_lo;
+- hv1 ^= ((e->bridge.src_mac_hi & 0xffff) << 16);
+- hv2 = e->bridge.src_mac_hi >> 16;
+- hv2 ^= e->bridge.dest_mac_lo;
+- hv3 = e->bridge.dest_mac_hi;
+- break;
+ case MTK_PPE_PKT_TYPE_IPV4_ROUTE:
+ case MTK_PPE_PKT_TYPE_IPV4_HNAPT:
+ hv1 = e->ipv4.orig.ports;
+@@ -572,7 +565,6 @@ int mtk_ppe_start(struct mtk_ppe *ppe)
+ MTK_PPE_FLOW_CFG_IP4_NAT |
+ MTK_PPE_FLOW_CFG_IP4_NAPT |
+ MTK_PPE_FLOW_CFG_IP4_DSLITE |
+- MTK_PPE_FLOW_CFG_L2_BRIDGE |
+ MTK_PPE_FLOW_CFG_IP4_NAT_FRAG;
+ ppe_w32(ppe, MTK_PPE_FLOW_CFG, val);
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
+@@ -32,7 +32,6 @@ static const char *mtk_foe_pkt_type_str(
+ static const char * const type_str[] = {
+ [MTK_PPE_PKT_TYPE_IPV4_HNAPT] = "IPv4 5T",
+ [MTK_PPE_PKT_TYPE_IPV4_ROUTE] = "IPv4 3T",
+- [MTK_PPE_PKT_TYPE_BRIDGE] = "L2",
+ [MTK_PPE_PKT_TYPE_IPV4_DSLITE] = "DS-LITE",
+ [MTK_PPE_PKT_TYPE_IPV6_ROUTE_3T] = "IPv6 3T",
+ [MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T] = "IPv6 5T",
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Wed, 23 Feb 2022 10:56:34 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: support creating mac
+ address based offload entries
+
+This will be used to implement a limited form of bridge offloading.
+Since the hardware does not support flow table entries with just source
+and destination MAC address, the driver has to emulate it.
+
+The hardware automatically creates entries entries for incoming flows, even
+when they are bridged instead of routed, and reports when packets for these
+flows have reached the minimum PPS rate for offloading.
+
+After this happens, we look up the L2 flow offload entry based on the MAC
+header and fill in the output routing information in the flow table.
+The dynamically created per-flow entries are automatically removed when
+either the hardware flowtable entry expires, is replaced, or if the offload
+rule they belong to is removed
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -6,12 +6,22 @@
+ #include <linux/iopoll.h>
+ #include <linux/etherdevice.h>
+ #include <linux/platform_device.h>
++#include <linux/if_ether.h>
++#include <linux/if_vlan.h>
++#include <net/dsa.h>
+ #include "mtk_eth_soc.h"
+ #include "mtk_ppe.h"
+ #include "mtk_ppe_regs.h"
+
+ static DEFINE_SPINLOCK(ppe_lock);
+
++static const struct rhashtable_params mtk_flow_l2_ht_params = {
++ .head_offset = offsetof(struct mtk_flow_entry, l2_node),
++ .key_offset = offsetof(struct mtk_flow_entry, data.bridge),
++ .key_len = offsetof(struct mtk_foe_bridge, key_end),
++ .automatic_shrinking = true,
++};
++
+ static void ppe_w32(struct mtk_ppe *ppe, u32 reg, u32 val)
+ {
+ writel(val, ppe->base + reg);
+@@ -123,6 +133,9 @@ mtk_foe_entry_l2(struct mtk_foe_entry *e
+ {
+ int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->ib1);
+
++ if (type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return &entry->bridge.l2;
++
+ if (type >= MTK_PPE_PKT_TYPE_IPV4_DSLITE)
+ return &entry->ipv6.l2;
+
+@@ -134,6 +147,9 @@ mtk_foe_entry_ib2(struct mtk_foe_entry *
+ {
+ int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->ib1);
+
++ if (type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return &entry->bridge.ib2;
++
+ if (type >= MTK_PPE_PKT_TYPE_IPV4_DSLITE)
+ return &entry->ipv6.ib2;
+
+@@ -168,7 +184,12 @@ int mtk_foe_entry_prepare(struct mtk_foe
+ if (type == MTK_PPE_PKT_TYPE_IPV6_ROUTE_3T)
+ entry->ipv6.ports = ports_pad;
+
+- if (type >= MTK_PPE_PKT_TYPE_IPV4_DSLITE) {
++ if (type == MTK_PPE_PKT_TYPE_BRIDGE) {
++ ether_addr_copy(entry->bridge.src_mac, src_mac);
++ ether_addr_copy(entry->bridge.dest_mac, dest_mac);
++ entry->bridge.ib2 = val;
++ l2 = &entry->bridge.l2;
++ } else if (type >= MTK_PPE_PKT_TYPE_IPV4_DSLITE) {
+ entry->ipv6.ib2 = val;
+ l2 = &entry->ipv6.l2;
+ } else {
+@@ -372,12 +393,96 @@ mtk_flow_entry_match(struct mtk_flow_ent
+ }
+
+ static void
++__mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ struct hlist_head *head;
++ struct hlist_node *tmp;
++
++ if (entry->type == MTK_FLOW_TYPE_L2) {
++ rhashtable_remove_fast(&ppe->l2_flows, &entry->l2_node,
++ mtk_flow_l2_ht_params);
++
++ head = &entry->l2_flows;
++ hlist_for_each_entry_safe(entry, tmp, head, l2_data.list)
++ __mtk_foe_entry_clear(ppe, entry);
++ return;
++ }
++
++ hlist_del_init(&entry->list);
++ if (entry->hash != 0xffff) {
++ ppe->foe_table[entry->hash].ib1 &= ~MTK_FOE_IB1_STATE;
++ ppe->foe_table[entry->hash].ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE,
++ MTK_FOE_STATE_BIND);
++ dma_wmb();
++ }
++ entry->hash = 0xffff;
++
++ if (entry->type != MTK_FLOW_TYPE_L2_SUBFLOW)
++ return;
++
++ hlist_del_init(&entry->l2_data.list);
++ kfree(entry);
++}
++
++static int __mtk_foe_entry_idle_time(struct mtk_ppe *ppe, u32 ib1)
++{
++ u16 timestamp;
++ u16 now;
++
++ now = mtk_eth_timestamp(ppe->eth) & MTK_FOE_IB1_BIND_TIMESTAMP;
++ timestamp = ib1 & MTK_FOE_IB1_BIND_TIMESTAMP;
++
++ if (timestamp > now)
++ return MTK_FOE_IB1_BIND_TIMESTAMP + 1 - timestamp + now;
++ else
++ return now - timestamp;
++}
++
++static void
++mtk_flow_entry_update_l2(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ struct mtk_flow_entry *cur;
++ struct mtk_foe_entry *hwe;
++ struct hlist_node *tmp;
++ int idle;
++
++ idle = __mtk_foe_entry_idle_time(ppe, entry->data.ib1);
++ hlist_for_each_entry_safe(cur, tmp, &entry->l2_flows, l2_data.list) {
++ int cur_idle;
++ u32 ib1;
++
++ hwe = &ppe->foe_table[cur->hash];
++ ib1 = READ_ONCE(hwe->ib1);
++
++ if (FIELD_GET(MTK_FOE_IB1_STATE, ib1) != MTK_FOE_STATE_BIND) {
++ cur->hash = 0xffff;
++ __mtk_foe_entry_clear(ppe, cur);
++ continue;
++ }
++
++ cur_idle = __mtk_foe_entry_idle_time(ppe, ib1);
++ if (cur_idle >= idle)
++ continue;
++
++ idle = cur_idle;
++ entry->data.ib1 &= ~MTK_FOE_IB1_BIND_TIMESTAMP;
++ entry->data.ib1 |= hwe->ib1 & MTK_FOE_IB1_BIND_TIMESTAMP;
++ }
++}
++
++static void
+ mtk_flow_entry_update(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
+ {
+ struct mtk_foe_entry *hwe;
+ struct mtk_foe_entry foe;
+
+ spin_lock_bh(&ppe_lock);
++
++ if (entry->type == MTK_FLOW_TYPE_L2) {
++ mtk_flow_entry_update_l2(ppe, entry);
++ goto out;
++ }
++
+ if (entry->hash == 0xffff)
+ goto out;
+
+@@ -419,21 +524,28 @@ __mtk_foe_entry_commit(struct mtk_ppe *p
+ void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
+ {
+ spin_lock_bh(&ppe_lock);
+- hlist_del_init(&entry->list);
+- if (entry->hash != 0xffff) {
+- ppe->foe_table[entry->hash].ib1 &= ~MTK_FOE_IB1_STATE;
+- ppe->foe_table[entry->hash].ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE,
+- MTK_FOE_STATE_BIND);
+- dma_wmb();
+- }
+- entry->hash = 0xffff;
++ __mtk_foe_entry_clear(ppe, entry);
+ spin_unlock_bh(&ppe_lock);
+ }
+
++static int
++mtk_foe_entry_commit_l2(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ entry->type = MTK_FLOW_TYPE_L2;
++
++ return rhashtable_insert_fast(&ppe->l2_flows, &entry->l2_node,
++ mtk_flow_l2_ht_params);
++}
++
+ int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
+ {
+- u32 hash = mtk_ppe_hash_entry(&entry->data);
++ int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->data.ib1);
++ u32 hash;
++
++ if (type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return mtk_foe_entry_commit_l2(ppe, entry);
+
++ hash = mtk_ppe_hash_entry(&entry->data);
+ entry->hash = 0xffff;
+ spin_lock_bh(&ppe_lock);
+ hlist_add_head(&entry->list, &ppe->foe_flow[hash / 2]);
+@@ -442,18 +554,72 @@ int mtk_foe_entry_commit(struct mtk_ppe
+ return 0;
+ }
+
++static void
++mtk_foe_entry_commit_subflow(struct mtk_ppe *ppe, struct mtk_flow_entry *entry,
++ u16 hash)
++{
++ struct mtk_flow_entry *flow_info;
++ struct mtk_foe_entry foe, *hwe;
++ struct mtk_foe_mac_info *l2;
++ u32 ib1_mask = MTK_FOE_IB1_PACKET_TYPE | MTK_FOE_IB1_UDP;
++ int type;
++
++ flow_info = kzalloc(offsetof(struct mtk_flow_entry, l2_data.end),
++ GFP_ATOMIC);
++ if (!flow_info)
++ return;
++
++ flow_info->l2_data.base_flow = entry;
++ flow_info->type = MTK_FLOW_TYPE_L2_SUBFLOW;
++ flow_info->hash = hash;
++ hlist_add_head(&flow_info->list, &ppe->foe_flow[hash / 2]);
++ hlist_add_head(&flow_info->l2_data.list, &entry->l2_flows);
++
++ hwe = &ppe->foe_table[hash];
++ memcpy(&foe, hwe, sizeof(foe));
++ foe.ib1 &= ib1_mask;
++ foe.ib1 |= entry->data.ib1 & ~ib1_mask;
++
++ l2 = mtk_foe_entry_l2(&foe);
++ memcpy(l2, &entry->data.bridge.l2, sizeof(*l2));
++
++ type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, foe.ib1);
++ if (type == MTK_PPE_PKT_TYPE_IPV4_HNAPT)
++ memcpy(&foe.ipv4.new, &foe.ipv4.orig, sizeof(foe.ipv4.new));
++ else if (type >= MTK_PPE_PKT_TYPE_IPV6_ROUTE_3T && l2->etype == ETH_P_IP)
++ l2->etype = ETH_P_IPV6;
++
++ *mtk_foe_entry_ib2(&foe) = entry->data.bridge.ib2;
++
++ __mtk_foe_entry_commit(ppe, &foe, hash);
++}
++
+ void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash)
+ {
+ struct hlist_head *head = &ppe->foe_flow[hash / 2];
+- struct mtk_flow_entry *entry;
+ struct mtk_foe_entry *hwe = &ppe->foe_table[hash];
++ struct mtk_flow_entry *entry;
++ struct mtk_foe_bridge key = {};
++ struct ethhdr *eh;
+ bool found = false;
+-
+- if (hlist_empty(head))
+- return;
++ u8 *tag;
+
+ spin_lock_bh(&ppe_lock);
++
++ if (FIELD_GET(MTK_FOE_IB1_STATE, hwe->ib1) == MTK_FOE_STATE_BIND)
++ goto out;
++
+ hlist_for_each_entry(entry, head, list) {
++ if (entry->type == MTK_FLOW_TYPE_L2_SUBFLOW) {
++ if (unlikely(FIELD_GET(MTK_FOE_IB1_STATE, hwe->ib1) ==
++ MTK_FOE_STATE_BIND))
++ continue;
++
++ entry->hash = 0xffff;
++ __mtk_foe_entry_clear(ppe, entry);
++ continue;
++ }
++
+ if (found || !mtk_flow_entry_match(entry, hwe)) {
+ if (entry->hash != 0xffff)
+ entry->hash = 0xffff;
+@@ -464,21 +630,50 @@ void __mtk_ppe_check_skb(struct mtk_ppe
+ __mtk_foe_entry_commit(ppe, &entry->data, hash);
+ found = true;
+ }
++
++ if (found)
++ goto out;
++
++ eh = eth_hdr(skb);
++ ether_addr_copy(key.dest_mac, eh->h_dest);
++ ether_addr_copy(key.src_mac, eh->h_source);
++ tag = skb->data - 2;
++ key.vlan = 0;
++ switch (skb->protocol) {
++#if IS_ENABLED(CONFIG_NET_DSA)
++ case htons(ETH_P_XDSA):
++ if (!netdev_uses_dsa(skb->dev) ||
++ skb->dev->dsa_ptr->tag_ops->proto != DSA_TAG_PROTO_MTK)
++ goto out;
++
++ tag += 4;
++ if (get_unaligned_be16(tag) != ETH_P_8021Q)
++ break;
++
++ fallthrough;
++#endif
++ case htons(ETH_P_8021Q):
++ key.vlan = get_unaligned_be16(tag + 2) & VLAN_VID_MASK;
++ break;
++ default:
++ break;
++ }
++
++ entry = rhashtable_lookup_fast(&ppe->l2_flows, &key, mtk_flow_l2_ht_params);
++ if (!entry)
++ goto out;
++
++ mtk_foe_entry_commit_subflow(ppe, entry, hash);
++
++out:
+ spin_unlock_bh(&ppe_lock);
+ }
+
+ int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
+ {
+- u16 now = mtk_eth_timestamp(ppe->eth) & MTK_FOE_IB1_BIND_TIMESTAMP;
+- u16 timestamp;
+-
+ mtk_flow_entry_update(ppe, entry);
+- timestamp = entry->data.ib1 & MTK_FOE_IB1_BIND_TIMESTAMP;
+
+- if (timestamp > now)
+- return MTK_FOE_IB1_BIND_TIMESTAMP + 1 - timestamp + now;
+- else
+- return now - timestamp;
++ return __mtk_foe_entry_idle_time(ppe, entry->data.ib1);
+ }
+
+ struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
+@@ -492,6 +687,8 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_
+ if (!ppe)
+ return NULL;
+
++ rhashtable_init(&ppe->l2_flows, &mtk_flow_l2_ht_params);
++
+ /* need to allocate a separate device, since it PPE DMA access is
+ * not coherent.
+ */
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
+@@ -6,6 +6,7 @@
+
+ #include <linux/kernel.h>
+ #include <linux/bitfield.h>
++#include <linux/rhashtable.h>
+
+ #define MTK_ETH_PPE_BASE 0xc00
+
+@@ -84,19 +85,16 @@ struct mtk_foe_mac_info {
+ u16 src_mac_lo;
+ };
+
++/* software-only entry type */
+ struct mtk_foe_bridge {
+- u32 dest_mac_hi;
+-
+- u16 src_mac_lo;
+- u16 dest_mac_lo;
++ u8 dest_mac[ETH_ALEN];
++ u8 src_mac[ETH_ALEN];
++ u16 vlan;
+
+- u32 src_mac_hi;
++ struct {} key_end;
+
+ u32 ib2;
+
+- u32 _rsv[5];
+-
+- u32 udf_tsid;
+ struct mtk_foe_mac_info l2;
+ };
+
+@@ -235,13 +233,33 @@ enum {
+ MTK_PPE_CPU_REASON_INVALID = 0x1f,
+ };
+
++enum {
++ MTK_FLOW_TYPE_L4,
++ MTK_FLOW_TYPE_L2,
++ MTK_FLOW_TYPE_L2_SUBFLOW,
++};
++
+ struct mtk_flow_entry {
++ union {
++ struct hlist_node list;
++ struct {
++ struct rhash_head l2_node;
++ struct hlist_head l2_flows;
++ };
++ };
++ u8 type;
++ s8 wed_index;
++ u16 hash;
++ union {
++ struct mtk_foe_entry data;
++ struct {
++ struct mtk_flow_entry *base_flow;
++ struct hlist_node list;
++ struct {} end;
++ } l2_data;
++ };
+ struct rhash_head node;
+- struct hlist_node list;
+ unsigned long cookie;
+- struct mtk_foe_entry data;
+- u16 hash;
+- s8 wed_index;
+ };
+
+ struct mtk_ppe {
+@@ -256,6 +274,8 @@ struct mtk_ppe {
+ u16 foe_check_time[MTK_PPE_ENTRIES];
+ struct hlist_head foe_flow[MTK_PPE_ENTRIES / 2];
+
++ struct rhashtable l2_flows;
++
+ void *acct_table;
+ };
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -32,6 +32,8 @@ struct mtk_flow_data {
+ __be16 src_port;
+ __be16 dst_port;
+
++ u16 vlan_in;
++
+ struct {
+ u16 id;
+ __be16 proto;
+@@ -258,9 +260,45 @@ mtk_flow_offload_replace(struct mtk_eth
+ return -EOPNOTSUPP;
+ }
+
++ switch (addr_type) {
++ case 0:
++ offload_type = MTK_PPE_PKT_TYPE_BRIDGE;
++ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
++ struct flow_match_eth_addrs match;
++
++ flow_rule_match_eth_addrs(rule, &match);
++ memcpy(data.eth.h_dest, match.key->dst, ETH_ALEN);
++ memcpy(data.eth.h_source, match.key->src, ETH_ALEN);
++ } else {
++ return -EOPNOTSUPP;
++ }
++
++ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
++ struct flow_match_vlan match;
++
++ flow_rule_match_vlan(rule, &match);
++
++ if (match.key->vlan_tpid != cpu_to_be16(ETH_P_8021Q))
++ return -EOPNOTSUPP;
++
++ data.vlan_in = match.key->vlan_id;
++ }
++ break;
++ case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
++ offload_type = MTK_PPE_PKT_TYPE_IPV4_HNAPT;
++ break;
++ case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
++ offload_type = MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T;
++ break;
++ default:
++ return -EOPNOTSUPP;
++ }
++
+ flow_action_for_each(i, act, &rule->action) {
+ switch (act->id) {
+ case FLOW_ACTION_MANGLE:
++ if (offload_type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return -EOPNOTSUPP;
+ if (act->mangle.htype == FLOW_ACT_MANGLE_HDR_TYPE_ETH)
+ mtk_flow_offload_mangle_eth(act, &data.eth);
+ break;
+@@ -292,17 +330,6 @@ mtk_flow_offload_replace(struct mtk_eth
+ }
+ }
+
+- switch (addr_type) {
+- case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
+- offload_type = MTK_PPE_PKT_TYPE_IPV4_HNAPT;
+- break;
+- case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
+- offload_type = MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T;
+- break;
+- default:
+- return -EOPNOTSUPP;
+- }
+-
+ if (!is_valid_ether_addr(data.eth.h_source) ||
+ !is_valid_ether_addr(data.eth.h_dest))
+ return -EINVAL;
+@@ -316,10 +343,13 @@ mtk_flow_offload_replace(struct mtk_eth
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
+ struct flow_match_ports ports;
+
++ if (offload_type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return -EOPNOTSUPP;
++
+ flow_rule_match_ports(rule, &ports);
+ data.src_port = ports.key->src;
+ data.dst_port = ports.key->dst;
+- } else {
++ } else if (offload_type != MTK_PPE_PKT_TYPE_BRIDGE) {
+ return -EOPNOTSUPP;
+ }
+
+@@ -349,6 +379,9 @@ mtk_flow_offload_replace(struct mtk_eth
+ if (act->id != FLOW_ACTION_MANGLE)
+ continue;
+
++ if (offload_type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return -EOPNOTSUPP;
++
+ switch (act->mangle.htype) {
+ case FLOW_ACT_MANGLE_HDR_TYPE_TCP:
+ case FLOW_ACT_MANGLE_HDR_TYPE_UDP:
+@@ -374,6 +407,9 @@ mtk_flow_offload_replace(struct mtk_eth
+ return err;
+ }
+
++ if (offload_type == MTK_PPE_PKT_TYPE_BRIDGE)
++ foe.bridge.vlan = data.vlan_in;
++
+ if (data.vlan.num == 1) {
+ if (data.vlan.proto != htons(ETH_P_8021Q))
+ return -EOPNOTSUPP;
+++ /dev/null
---- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
-+++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
-@@ -7,6 +7,7 @@
- #include <linux/rhashtable.h>
- #include <linux/if_ether.h>
- #include <linux/ip.h>
-+#include <linux/ipv6.h>
- #include <net/flow_offload.h>
- #include <net/pkt_cls.h>
- #include <net/dsa.h>
-@@ -20,6 +21,11 @@ struct mtk_flow_data {
- __be32 src_addr;
- __be32 dst_addr;
- } v4;
-+
-+ struct {
-+ struct in6_addr src_addr;
-+ struct in6_addr dst_addr;
-+ } v6;
- };
-
- __be16 src_port;
-@@ -64,6 +70,14 @@ mtk_flow_set_ipv4_addr(struct mtk_foe_en
- data->v4.dst_addr, data->dst_port);
- }
-
-+static int
-+mtk_flow_set_ipv6_addr(struct mtk_foe_entry *foe, struct mtk_flow_data *data)
-+{
-+ return mtk_foe_entry_set_ipv6_tuple(foe,
-+ data->v6.src_addr.s6_addr32, data->src_port,
-+ data->v6.dst_addr.s6_addr32, data->dst_port);
-+}
-+
- static void
- mtk_flow_offload_mangle_eth(const struct flow_action_entry *act, void *eth)
- {
-@@ -254,6 +268,9 @@ mtk_flow_offload_replace(struct mtk_eth
- case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
- offload_type = MTK_PPE_PKT_TYPE_IPV4_HNAPT;
- break;
-+ case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
-+ offload_type = MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T;
-+ break;
- default:
- return -EOPNOTSUPP;
- }
-@@ -289,6 +306,17 @@ mtk_flow_offload_replace(struct mtk_eth
- mtk_flow_set_ipv4_addr(&foe, &data, false);
- }
-
-+ if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
-+ struct flow_match_ipv6_addrs addrs;
-+
-+ flow_rule_match_ipv6_addrs(rule, &addrs);
-+
-+ data.v6.src_addr = addrs.key->src;
-+ data.v6.dst_addr = addrs.key->dst;
-+
-+ mtk_flow_set_ipv6_addr(&foe, &data);
-+ }
-+
- flow_action_for_each(i, act, &rule->action) {
- if (act->id != FLOW_ACTION_MANGLE)
- continue;
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 5 Feb 2022 17:59:07 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: add support for coherent
+ DMA
+
+It improves performance by eliminating the need for a cache flush on rx and tx
+In preparation for supporting WED (Wireless Ethernet Dispatch), also add a
+function for disabling coherent DMA at runtime.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -9,6 +9,7 @@
+ #include <linux/of_device.h>
+ #include <linux/of_mdio.h>
+ #include <linux/of_net.h>
++#include <linux/of_address.h>
+ #include <linux/mfd/syscon.h>
+ #include <linux/regmap.h>
+ #include <linux/clk.h>
+@@ -828,7 +829,7 @@ static int mtk_init_fq_dma(struct mtk_et
+ dma_addr_t dma_addr;
+ int i;
+
+- eth->scratch_ring = dma_alloc_coherent(eth->dev,
++ eth->scratch_ring = dma_alloc_coherent(eth->dma_dev,
+ cnt * sizeof(struct mtk_tx_dma),
+ ð->phy_scratch_ring,
+ GFP_ATOMIC);
+@@ -840,10 +841,10 @@ static int mtk_init_fq_dma(struct mtk_et
+ if (unlikely(!eth->scratch_head))
+ return -ENOMEM;
+
+- dma_addr = dma_map_single(eth->dev,
++ dma_addr = dma_map_single(eth->dma_dev,
+ eth->scratch_head, cnt * MTK_QDMA_PAGE_SIZE,
+ DMA_FROM_DEVICE);
+- if (unlikely(dma_mapping_error(eth->dev, dma_addr)))
++ if (unlikely(dma_mapping_error(eth->dma_dev, dma_addr)))
+ return -ENOMEM;
+
+ phy_ring_tail = eth->phy_scratch_ring +
+@@ -897,26 +898,26 @@ static void mtk_tx_unmap(struct mtk_eth
+ {
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) {
+ if (tx_buf->flags & MTK_TX_FLAGS_SINGLE0) {
+- dma_unmap_single(eth->dev,
++ dma_unmap_single(eth->dma_dev,
+ dma_unmap_addr(tx_buf, dma_addr0),
+ dma_unmap_len(tx_buf, dma_len0),
+ DMA_TO_DEVICE);
+ } else if (tx_buf->flags & MTK_TX_FLAGS_PAGE0) {
+- dma_unmap_page(eth->dev,
++ dma_unmap_page(eth->dma_dev,
+ dma_unmap_addr(tx_buf, dma_addr0),
+ dma_unmap_len(tx_buf, dma_len0),
+ DMA_TO_DEVICE);
+ }
+ } else {
+ if (dma_unmap_len(tx_buf, dma_len0)) {
+- dma_unmap_page(eth->dev,
++ dma_unmap_page(eth->dma_dev,
+ dma_unmap_addr(tx_buf, dma_addr0),
+ dma_unmap_len(tx_buf, dma_len0),
+ DMA_TO_DEVICE);
+ }
+
+ if (dma_unmap_len(tx_buf, dma_len1)) {
+- dma_unmap_page(eth->dev,
++ dma_unmap_page(eth->dma_dev,
+ dma_unmap_addr(tx_buf, dma_addr1),
+ dma_unmap_len(tx_buf, dma_len1),
+ DMA_TO_DEVICE);
+@@ -994,9 +995,9 @@ static int mtk_tx_map(struct sk_buff *sk
+ if (skb_vlan_tag_present(skb))
+ txd4 |= TX_DMA_INS_VLAN | skb_vlan_tag_get(skb);
+
+- mapped_addr = dma_map_single(eth->dev, skb->data,
++ mapped_addr = dma_map_single(eth->dma_dev, skb->data,
+ skb_headlen(skb), DMA_TO_DEVICE);
+- if (unlikely(dma_mapping_error(eth->dev, mapped_addr)))
++ if (unlikely(dma_mapping_error(eth->dma_dev, mapped_addr)))
+ return -ENOMEM;
+
+ WRITE_ONCE(itxd->txd1, mapped_addr);
+@@ -1035,10 +1036,10 @@ static int mtk_tx_map(struct sk_buff *sk
+
+
+ frag_map_size = min(frag_size, MTK_TX_DMA_BUF_LEN);
+- mapped_addr = skb_frag_dma_map(eth->dev, frag, offset,
++ mapped_addr = skb_frag_dma_map(eth->dma_dev, frag, offset,
+ frag_map_size,
+ DMA_TO_DEVICE);
+- if (unlikely(dma_mapping_error(eth->dev, mapped_addr)))
++ if (unlikely(dma_mapping_error(eth->dma_dev, mapped_addr)))
+ goto err_dma;
+
+ if (i == nr_frags - 1 &&
+@@ -1316,18 +1317,18 @@ static int mtk_poll_rx(struct napi_struc
+ netdev->stats.rx_dropped++;
+ goto release_desc;
+ }
+- dma_addr = dma_map_single(eth->dev,
++ dma_addr = dma_map_single(eth->dma_dev,
+ new_data + NET_SKB_PAD +
+ eth->ip_align,
+ ring->buf_size,
+ DMA_FROM_DEVICE);
+- if (unlikely(dma_mapping_error(eth->dev, dma_addr))) {
++ if (unlikely(dma_mapping_error(eth->dma_dev, dma_addr))) {
+ skb_free_frag(new_data);
+ netdev->stats.rx_dropped++;
+ goto release_desc;
+ }
+
+- dma_unmap_single(eth->dev, trxd.rxd1,
++ dma_unmap_single(eth->dma_dev, trxd.rxd1,
+ ring->buf_size, DMA_FROM_DEVICE);
+
+ /* receive data */
+@@ -1600,7 +1601,7 @@ static int mtk_tx_alloc(struct mtk_eth *
+ if (!ring->buf)
+ goto no_tx_mem;
+
+- ring->dma = dma_alloc_coherent(eth->dev, MTK_DMA_SIZE * sz,
++ ring->dma = dma_alloc_coherent(eth->dma_dev, MTK_DMA_SIZE * sz,
+ &ring->phys, GFP_ATOMIC);
+ if (!ring->dma)
+ goto no_tx_mem;
+@@ -1618,7 +1619,7 @@ static int mtk_tx_alloc(struct mtk_eth *
+ * descriptors in ring->dma_pdma.
+ */
+ if (!MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) {
+- ring->dma_pdma = dma_alloc_coherent(eth->dev, MTK_DMA_SIZE * sz,
++ ring->dma_pdma = dma_alloc_coherent(eth->dma_dev, MTK_DMA_SIZE * sz,
+ &ring->phys_pdma,
+ GFP_ATOMIC);
+ if (!ring->dma_pdma)
+@@ -1677,7 +1678,7 @@ static void mtk_tx_clean(struct mtk_eth
+ }
+
+ if (ring->dma) {
+- dma_free_coherent(eth->dev,
++ dma_free_coherent(eth->dma_dev,
+ MTK_DMA_SIZE * sizeof(*ring->dma),
+ ring->dma,
+ ring->phys);
+@@ -1685,7 +1686,7 @@ static void mtk_tx_clean(struct mtk_eth
+ }
+
+ if (ring->dma_pdma) {
+- dma_free_coherent(eth->dev,
++ dma_free_coherent(eth->dma_dev,
+ MTK_DMA_SIZE * sizeof(*ring->dma_pdma),
+ ring->dma_pdma,
+ ring->phys_pdma);
+@@ -1730,18 +1731,18 @@ static int mtk_rx_alloc(struct mtk_eth *
+ return -ENOMEM;
+ }
+
+- ring->dma = dma_alloc_coherent(eth->dev,
++ ring->dma = dma_alloc_coherent(eth->dma_dev,
+ rx_dma_size * sizeof(*ring->dma),
+ &ring->phys, GFP_ATOMIC);
+ if (!ring->dma)
+ return -ENOMEM;
+
+ for (i = 0; i < rx_dma_size; i++) {
+- dma_addr_t dma_addr = dma_map_single(eth->dev,
++ dma_addr_t dma_addr = dma_map_single(eth->dma_dev,
+ ring->data[i] + NET_SKB_PAD + eth->ip_align,
+ ring->buf_size,
+ DMA_FROM_DEVICE);
+- if (unlikely(dma_mapping_error(eth->dev, dma_addr)))
++ if (unlikely(dma_mapping_error(eth->dma_dev, dma_addr)))
+ return -ENOMEM;
+ ring->dma[i].rxd1 = (unsigned int)dma_addr;
+
+@@ -1777,7 +1778,7 @@ static void mtk_rx_clean(struct mtk_eth
+ continue;
+ if (!ring->dma[i].rxd1)
+ continue;
+- dma_unmap_single(eth->dev,
++ dma_unmap_single(eth->dma_dev,
+ ring->dma[i].rxd1,
+ ring->buf_size,
+ DMA_FROM_DEVICE);
+@@ -1788,7 +1789,7 @@ static void mtk_rx_clean(struct mtk_eth
+ }
+
+ if (ring->dma) {
+- dma_free_coherent(eth->dev,
++ dma_free_coherent(eth->dma_dev,
+ ring->dma_size * sizeof(*ring->dma),
+ ring->dma,
+ ring->phys);
+@@ -2141,7 +2142,7 @@ static void mtk_dma_free(struct mtk_eth
+ if (eth->netdev[i])
+ netdev_reset_queue(eth->netdev[i]);
+ if (eth->scratch_ring) {
+- dma_free_coherent(eth->dev,
++ dma_free_coherent(eth->dma_dev,
+ MTK_DMA_SIZE * sizeof(struct mtk_tx_dma),
+ eth->scratch_ring,
+ eth->phy_scratch_ring);
+@@ -2491,6 +2492,8 @@ static void mtk_dim_tx(struct work_struc
+
+ static int mtk_hw_init(struct mtk_eth *eth)
+ {
++ u32 dma_mask = ETHSYS_DMA_AG_MAP_PDMA | ETHSYS_DMA_AG_MAP_QDMA |
++ ETHSYS_DMA_AG_MAP_PPE;
+ int i, val, ret;
+
+ if (test_and_set_bit(MTK_HW_INIT, ð->state))
+@@ -2503,6 +2506,10 @@ static int mtk_hw_init(struct mtk_eth *e
+ if (ret)
+ goto err_disable_pm;
+
++ if (eth->ethsys)
++ regmap_update_bits(eth->ethsys, ETHSYS_DMA_AG_MAP, dma_mask,
++ of_dma_is_coherent(eth->dma_dev->of_node) * dma_mask);
++
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) {
+ ret = device_reset(eth->dev);
+ if (ret) {
+@@ -3056,6 +3063,35 @@ free_netdev:
+ return err;
+ }
+
++void mtk_eth_set_dma_device(struct mtk_eth *eth, struct device *dma_dev)
++{
++ struct net_device *dev, *tmp;
++ LIST_HEAD(dev_list);
++ int i;
++
++ rtnl_lock();
++
++ for (i = 0; i < MTK_MAC_COUNT; i++) {
++ dev = eth->netdev[i];
++
++ if (!dev || !(dev->flags & IFF_UP))
++ continue;
++
++ list_add_tail(&dev->close_list, &dev_list);
++ }
++
++ dev_close_many(&dev_list, false);
++
++ eth->dma_dev = dma_dev;
++
++ list_for_each_entry_safe(dev, tmp, &dev_list, close_list) {
++ list_del_init(&dev->close_list);
++ dev_open(dev, NULL);
++ }
++
++ rtnl_unlock();
++}
++
+ static int mtk_probe(struct platform_device *pdev)
+ {
+ struct device_node *mac_np;
+@@ -3069,6 +3105,7 @@ static int mtk_probe(struct platform_dev
+ eth->soc = of_device_get_match_data(&pdev->dev);
+
+ eth->dev = &pdev->dev;
++ eth->dma_dev = &pdev->dev;
+ eth->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(eth->base))
+ return PTR_ERR(eth->base);
+@@ -3117,6 +3154,16 @@ static int mtk_probe(struct platform_dev
+ }
+ }
+
++ if (of_dma_is_coherent(pdev->dev.of_node)) {
++ struct regmap *cci;
++
++ cci = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
++ "mediatek,cci-control");
++ /* enable CPU/bus coherency */
++ if (!IS_ERR(cci))
++ regmap_write(cci, 0, 3);
++ }
++
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_SGMII)) {
+ eth->sgmii = devm_kzalloc(eth->dev, sizeof(*eth->sgmii),
+ GFP_KERNEL);
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+@@ -462,6 +462,12 @@
+ #define RSTCTRL_FE BIT(6)
+ #define RSTCTRL_PPE BIT(31)
+
++/* ethernet dma channel agent map */
++#define ETHSYS_DMA_AG_MAP 0x408
++#define ETHSYS_DMA_AG_MAP_PDMA BIT(0)
++#define ETHSYS_DMA_AG_MAP_QDMA BIT(1)
++#define ETHSYS_DMA_AG_MAP_PPE BIT(2)
++
+ /* SGMII subsystem config registers */
+ /* Register to auto-negotiation restart */
+ #define SGMSYS_PCS_CONTROL_1 0x0
+@@ -879,6 +885,7 @@ struct mtk_sgmii {
+ /* struct mtk_eth - This is the main datasructure for holding the state
+ * of the driver
+ * @dev: The device pointer
++ * @dev: The device pointer used for dma mapping/alloc
+ * @base: The mapped register i/o base
+ * @page_lock: Make sure that register operations are atomic
+ * @tx_irq__lock: Make sure that IRQ register operations are atomic
+@@ -922,6 +929,7 @@ struct mtk_sgmii {
+
+ struct mtk_eth {
+ struct device *dev;
++ struct device *dma_dev;
+ void __iomem *base;
+ spinlock_t page_lock;
+ spinlock_t tx_irq_lock;
+@@ -1020,6 +1028,7 @@ int mtk_gmac_rgmii_path_setup(struct mtk
+ int mtk_eth_offload_init(struct mtk_eth *eth);
+ int mtk_eth_setup_tc(struct net_device *dev, enum tc_setup_type type,
+ void *type_data);
++void mtk_eth_set_dma_device(struct mtk_eth *eth, struct device *dma_dev);
+
+
+ #endif /* MTK_ETH_H */
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 7 Feb 2022 10:27:22 +0100
+Subject: [PATCH] arm64: dts: mediatek: mt7622: add support for coherent
+ DMA
+
+It improves performance by eliminating the need for a cache flush on rx and tx
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
++++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+@@ -357,7 +357,7 @@
+ };
+
+ cci_control2: slave-if@5000 {
+- compatible = "arm,cci-400-ctrl-if";
++ compatible = "arm,cci-400-ctrl-if", "syscon";
+ interface-type = "ace";
+ reg = <0x5000 0x1000>;
+ };
+@@ -937,6 +937,8 @@
+ power-domains = <&scpsys MT7622_POWER_DOMAIN_ETHSYS>;
+ mediatek,ethsys = <ðsys>;
+ mediatek,sgmiisys = <&sgmiisys>;
++ mediatek,cci-control = <&cci_control2>;
++ dma-coherent;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 5 Feb 2022 17:56:08 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: add support for Wireless
+ Ethernet Dispatch (WED)
+
+The Wireless Ethernet Dispatch subsystem on the MT7622 SoC can be
+configured to intercept and handle access to the DMA queues and
+PCIe interrupts for a MT7615/MT7915 wireless card.
+It can manage the internal WDMA (Wireless DMA) controller, which allows
+ethernet packets to be passed from the packet switch engine (PSE) to the
+wireless card, bypassing the CPU entirely.
+This can be used to implement hardware flow offloading from ethernet to
+WLAN.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ create mode 100644 drivers/net/ethernet/mediatek/mtk_wed.c
+ create mode 100644 drivers/net/ethernet/mediatek/mtk_wed.h
+ create mode 100644 drivers/net/ethernet/mediatek/mtk_wed_debugfs.c
+ create mode 100644 drivers/net/ethernet/mediatek/mtk_wed_ops.c
+ create mode 100644 drivers/net/ethernet/mediatek/mtk_wed_regs.h
+ create mode 100644 include/linux/soc/mediatek/mtk_wed.h
+
+--- a/drivers/net/ethernet/mediatek/Kconfig
++++ b/drivers/net/ethernet/mediatek/Kconfig
+@@ -7,6 +7,10 @@ config NET_VENDOR_MEDIATEK
+
+ if NET_VENDOR_MEDIATEK
+
++config NET_MEDIATEK_SOC_WED
++ depends on ARCH_MEDIATEK || COMPILE_TEST
++ def_bool NET_MEDIATEK_SOC != n
++
+ config NET_MEDIATEK_SOC
+ tristate "MediaTek SoC Gigabit Ethernet support"
+ depends on NET_DSA || !NET_DSA
+--- a/drivers/net/ethernet/mediatek/Makefile
++++ b/drivers/net/ethernet/mediatek/Makefile
+@@ -5,4 +5,9 @@
+
+ obj-$(CONFIG_NET_MEDIATEK_SOC) += mtk_eth.o
+ mtk_eth-y := mtk_eth_soc.o mtk_sgmii.o mtk_eth_path.o mtk_ppe.o mtk_ppe_debugfs.o mtk_ppe_offload.o
++mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed.o
++ifdef CONFIG_DEBUG_FS
++mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed_debugfs.o
++endif
++obj-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed_ops.o
+ obj-$(CONFIG_NET_MEDIATEK_STAR_EMAC) += mtk_star_emac.o
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -24,6 +24,7 @@
+ #include <net/dsa.h>
+
+ #include "mtk_eth_soc.h"
++#include "mtk_wed.h"
+
+ static int mtk_msg_level = -1;
+ module_param_named(msg_level, mtk_msg_level, int, 0);
+@@ -3186,6 +3187,22 @@ static int mtk_probe(struct platform_dev
+ }
+ }
+
++ for (i = 0;; i++) {
++ struct device_node *np = of_parse_phandle(pdev->dev.of_node,
++ "mediatek,wed", i);
++ static const u32 wdma_regs[] = {
++ MTK_WDMA0_BASE,
++ MTK_WDMA1_BASE
++ };
++ void __iomem *wdma;
++
++ if (!np || i >= ARRAY_SIZE(wdma_regs))
++ break;
++
++ wdma = eth->base + wdma_regs[i];
++ mtk_wed_add_hw(np, eth, wdma, i);
++ }
++
+ for (i = 0; i < 3; i++) {
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_INT) && i > 0)
+ eth->irq[i] = eth->irq[0];
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+@@ -295,6 +295,9 @@
+ #define MTK_GDM1_TX_GPCNT 0x2438
+ #define MTK_STAT_OFFSET 0x40
+
++#define MTK_WDMA0_BASE 0x2800
++#define MTK_WDMA1_BASE 0x2c00
++
+ /* QDMA descriptor txd4 */
+ #define TX_DMA_CHKSUM (0x7 << 29)
+ #define TX_DMA_TSO BIT(28)
+--- /dev/null
++++ b/drivers/net/ethernet/mediatek/mtk_wed.c
+@@ -0,0 +1,875 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/* Copyright (C) 2021 Felix Fietkau <nbd@nbd.name> */
++
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/module.h>
++#include <linux/bitfield.h>
++#include <linux/dma-mapping.h>
++#include <linux/skbuff.h>
++#include <linux/of_platform.h>
++#include <linux/of_address.h>
++#include <linux/mfd/syscon.h>
++#include <linux/debugfs.h>
++#include <linux/soc/mediatek/mtk_wed.h>
++#include "mtk_eth_soc.h"
++#include "mtk_wed_regs.h"
++#include "mtk_wed.h"
++#include "mtk_ppe.h"
++
++#define MTK_PCIE_BASE(n) (0x1a143000 + (n) * 0x2000)
++
++#define MTK_WED_PKT_SIZE 1900
++#define MTK_WED_BUF_SIZE 2048
++#define MTK_WED_BUF_PER_PAGE (PAGE_SIZE / 2048)
++
++#define MTK_WED_TX_RING_SIZE 2048
++#define MTK_WED_WDMA_RING_SIZE 1024
++
++static struct mtk_wed_hw *hw_list[2];
++static DEFINE_MUTEX(hw_lock);
++
++static void
++wed_m32(struct mtk_wed_device *dev, u32 reg, u32 mask, u32 val)
++{
++ regmap_update_bits(dev->hw->regs, reg, mask | val, val);
++}
++
++static void
++wed_set(struct mtk_wed_device *dev, u32 reg, u32 mask)
++{
++ return wed_m32(dev, reg, 0, mask);
++}
++
++static void
++wed_clr(struct mtk_wed_device *dev, u32 reg, u32 mask)
++{
++ return wed_m32(dev, reg, mask, 0);
++}
++
++static void
++wdma_m32(struct mtk_wed_device *dev, u32 reg, u32 mask, u32 val)
++{
++ wdma_w32(dev, reg, (wdma_r32(dev, reg) & ~mask) | val);
++}
++
++static void
++wdma_set(struct mtk_wed_device *dev, u32 reg, u32 mask)
++{
++ wdma_m32(dev, reg, 0, mask);
++}
++
++static u32
++mtk_wed_read_reset(struct mtk_wed_device *dev)
++{
++ return wed_r32(dev, MTK_WED_RESET);
++}
++
++static void
++mtk_wed_reset(struct mtk_wed_device *dev, u32 mask)
++{
++ u32 status;
++
++ wed_w32(dev, MTK_WED_RESET, mask);
++ if (readx_poll_timeout(mtk_wed_read_reset, dev, status,
++ !(status & mask), 0, 1000))
++ WARN_ON_ONCE(1);
++}
++
++static struct mtk_wed_hw *
++mtk_wed_assign(struct mtk_wed_device *dev)
++{
++ struct mtk_wed_hw *hw;
++
++ hw = hw_list[pci_domain_nr(dev->wlan.pci_dev->bus)];
++ if (!hw || hw->wed_dev)
++ return NULL;
++
++ hw->wed_dev = dev;
++ return hw;
++}
++
++static int
++mtk_wed_buffer_alloc(struct mtk_wed_device *dev)
++{
++ struct mtk_wdma_desc *desc;
++ dma_addr_t desc_phys;
++ void **page_list;
++ int token = dev->wlan.token_start;
++ int ring_size;
++ int n_pages;
++ int i, page_idx;
++
++ ring_size = dev->wlan.nbuf & ~(MTK_WED_BUF_PER_PAGE - 1);
++ n_pages = ring_size / MTK_WED_BUF_PER_PAGE;
++
++ page_list = kcalloc(n_pages, sizeof(*page_list), GFP_KERNEL);
++ if (!page_list)
++ return -ENOMEM;
++
++ dev->buf_ring.size = ring_size;
++ dev->buf_ring.pages = page_list;
++
++ desc = dma_alloc_coherent(dev->hw->dev, ring_size * sizeof(*desc),
++ &desc_phys, GFP_KERNEL);
++ if (!desc)
++ return -ENOMEM;
++
++ dev->buf_ring.desc = desc;
++ dev->buf_ring.desc_phys = desc_phys;
++
++ for (i = 0, page_idx = 0; i < ring_size; i += MTK_WED_BUF_PER_PAGE) {
++ dma_addr_t page_phys, buf_phys;
++ struct page *page;
++ void *buf;
++ int s;
++
++ page = __dev_alloc_pages(GFP_KERNEL, 0);
++ if (!page)
++ return -ENOMEM;
++
++ page_phys = dma_map_page(dev->hw->dev, page, 0, PAGE_SIZE,
++ DMA_BIDIRECTIONAL);
++ if (dma_mapping_error(dev->hw->dev, page_phys)) {
++ __free_page(page);
++ return -ENOMEM;
++ }
++
++ page_list[page_idx++] = page;
++ dma_sync_single_for_cpu(dev->hw->dev, page_phys, PAGE_SIZE,
++ DMA_BIDIRECTIONAL);
++
++ buf = page_to_virt(page);
++ buf_phys = page_phys;
++
++ for (s = 0; s < MTK_WED_BUF_PER_PAGE; s++) {
++ u32 txd_size;
++
++ txd_size = dev->wlan.init_buf(buf, buf_phys, token++);
++
++ desc->buf0 = buf_phys;
++ desc->buf1 = buf_phys + txd_size;
++ desc->ctrl = FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN0,
++ txd_size) |
++ FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN1,
++ MTK_WED_BUF_SIZE - txd_size) |
++ MTK_WDMA_DESC_CTRL_LAST_SEG1;
++ desc->info = 0;
++ desc++;
++
++ buf += MTK_WED_BUF_SIZE;
++ buf_phys += MTK_WED_BUF_SIZE;
++ }
++
++ dma_sync_single_for_device(dev->hw->dev, page_phys, PAGE_SIZE,
++ DMA_BIDIRECTIONAL);
++ }
++
++ return 0;
++}
++
++static void
++mtk_wed_free_buffer(struct mtk_wed_device *dev)
++{
++ struct mtk_wdma_desc *desc = dev->buf_ring.desc;
++ void **page_list = dev->buf_ring.pages;
++ int page_idx;
++ int i;
++
++ if (!page_list)
++ return;
++
++ if (!desc)
++ goto free_pagelist;
++
++ for (i = 0, page_idx = 0; i < dev->buf_ring.size; i += MTK_WED_BUF_PER_PAGE) {
++ void *page = page_list[page_idx++];
++
++ if (!page)
++ break;
++
++ dma_unmap_page(dev->hw->dev, desc[i].buf0,
++ PAGE_SIZE, DMA_BIDIRECTIONAL);
++ __free_page(page);
++ }
++
++ dma_free_coherent(dev->hw->dev, dev->buf_ring.size * sizeof(*desc),
++ desc, dev->buf_ring.desc_phys);
++
++free_pagelist:
++ kfree(page_list);
++}
++
++static void
++mtk_wed_free_ring(struct mtk_wed_device *dev, struct mtk_wed_ring *ring)
++{
++ if (!ring->desc)
++ return;
++
++ dma_free_coherent(dev->hw->dev, ring->size * sizeof(*ring->desc),
++ ring->desc, ring->desc_phys);
++}
++
++static void
++mtk_wed_free_tx_rings(struct mtk_wed_device *dev)
++{
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(dev->tx_ring); i++)
++ mtk_wed_free_ring(dev, &dev->tx_ring[i]);
++ for (i = 0; i < ARRAY_SIZE(dev->tx_wdma); i++)
++ mtk_wed_free_ring(dev, &dev->tx_wdma[i]);
++}
++
++static void
++mtk_wed_set_ext_int(struct mtk_wed_device *dev, bool en)
++{
++ u32 mask = MTK_WED_EXT_INT_STATUS_ERROR_MASK;
++
++ if (!dev->hw->num_flows)
++ mask &= ~MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD;
++
++ wed_w32(dev, MTK_WED_EXT_INT_MASK, en ? mask : 0);
++ wed_r32(dev, MTK_WED_EXT_INT_MASK);
++}
++
++static void
++mtk_wed_stop(struct mtk_wed_device *dev)
++{
++ regmap_write(dev->hw->mirror, dev->hw->index * 4, 0);
++ mtk_wed_set_ext_int(dev, false);
++
++ wed_clr(dev, MTK_WED_CTRL,
++ MTK_WED_CTRL_WDMA_INT_AGENT_EN |
++ MTK_WED_CTRL_WPDMA_INT_AGENT_EN |
++ MTK_WED_CTRL_WED_TX_BM_EN |
++ MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
++ wed_w32(dev, MTK_WED_WPDMA_INT_TRIGGER, 0);
++ wed_w32(dev, MTK_WED_WDMA_INT_TRIGGER, 0);
++ wdma_w32(dev, MTK_WDMA_INT_MASK, 0);
++ wdma_w32(dev, MTK_WDMA_INT_GRP2, 0);
++ wed_w32(dev, MTK_WED_WPDMA_INT_MASK, 0);
++
++ wed_clr(dev, MTK_WED_GLO_CFG,
++ MTK_WED_GLO_CFG_TX_DMA_EN |
++ MTK_WED_GLO_CFG_RX_DMA_EN);
++ wed_clr(dev, MTK_WED_WPDMA_GLO_CFG,
++ MTK_WED_WPDMA_GLO_CFG_TX_DRV_EN |
++ MTK_WED_WPDMA_GLO_CFG_RX_DRV_EN);
++ wed_clr(dev, MTK_WED_WDMA_GLO_CFG,
++ MTK_WED_WDMA_GLO_CFG_RX_DRV_EN);
++}
++
++static void
++mtk_wed_detach(struct mtk_wed_device *dev)
++{
++ struct device_node *wlan_node = dev->wlan.pci_dev->dev.of_node;
++ struct mtk_wed_hw *hw = dev->hw;
++
++ mutex_lock(&hw_lock);
++
++ mtk_wed_stop(dev);
++
++ wdma_w32(dev, MTK_WDMA_RESET_IDX, MTK_WDMA_RESET_IDX_RX);
++ wdma_w32(dev, MTK_WDMA_RESET_IDX, 0);
++
++ mtk_wed_reset(dev, MTK_WED_RESET_WED);
++
++ mtk_wed_free_buffer(dev);
++ mtk_wed_free_tx_rings(dev);
++
++ if (of_dma_is_coherent(wlan_node))
++ regmap_update_bits(hw->hifsys, HIFSYS_DMA_AG_MAP,
++ BIT(hw->index), BIT(hw->index));
++
++ if (!hw_list[!hw->index]->wed_dev &&
++ hw->eth->dma_dev != hw->eth->dev)
++ mtk_eth_set_dma_device(hw->eth, hw->eth->dev);
++
++ memset(dev, 0, sizeof(*dev));
++ module_put(THIS_MODULE);
++
++ hw->wed_dev = NULL;
++ mutex_unlock(&hw_lock);
++}
++
++static void
++mtk_wed_hw_init_early(struct mtk_wed_device *dev)
++{
++ u32 mask, set;
++ u32 offset;
++
++ mtk_wed_stop(dev);
++ mtk_wed_reset(dev, MTK_WED_RESET_WED);
++
++ mask = MTK_WED_WDMA_GLO_CFG_BT_SIZE |
++ MTK_WED_WDMA_GLO_CFG_DYNAMIC_DMAD_RECYCLE |
++ MTK_WED_WDMA_GLO_CFG_RX_DIS_FSM_AUTO_IDLE;
++ set = FIELD_PREP(MTK_WED_WDMA_GLO_CFG_BT_SIZE, 2) |
++ MTK_WED_WDMA_GLO_CFG_DYNAMIC_SKIP_DMAD_PREP |
++ MTK_WED_WDMA_GLO_CFG_IDLE_DMAD_SUPPLY;
++ wed_m32(dev, MTK_WED_WDMA_GLO_CFG, mask, set);
++
++ wdma_set(dev, MTK_WDMA_GLO_CFG, MTK_WDMA_GLO_CFG_RX_INFO_PRERES);
++
++ offset = dev->hw->index ? 0x04000400 : 0;
++ wed_w32(dev, MTK_WED_WDMA_OFFSET0, 0x2a042a20 + offset);
++ wed_w32(dev, MTK_WED_WDMA_OFFSET1, 0x29002800 + offset);
++
++ wed_w32(dev, MTK_WED_PCIE_CFG_BASE, MTK_PCIE_BASE(dev->hw->index));
++ wed_w32(dev, MTK_WED_WPDMA_CFG_BASE, dev->wlan.wpdma_phys);
++}
++
++static void
++mtk_wed_hw_init(struct mtk_wed_device *dev)
++{
++ if (dev->init_done)
++ return;
++
++ dev->init_done = true;
++ mtk_wed_set_ext_int(dev, false);
++ wed_w32(dev, MTK_WED_TX_BM_CTRL,
++ MTK_WED_TX_BM_CTRL_PAUSE |
++ FIELD_PREP(MTK_WED_TX_BM_CTRL_VLD_GRP_NUM,
++ dev->buf_ring.size / 128) |
++ FIELD_PREP(MTK_WED_TX_BM_CTRL_RSV_GRP_NUM,
++ MTK_WED_TX_RING_SIZE / 256));
++
++ wed_w32(dev, MTK_WED_TX_BM_BASE, dev->buf_ring.desc_phys);
++
++ wed_w32(dev, MTK_WED_TX_BM_TKID,
++ FIELD_PREP(MTK_WED_TX_BM_TKID_START,
++ dev->wlan.token_start) |
++ FIELD_PREP(MTK_WED_TX_BM_TKID_END,
++ dev->wlan.token_start + dev->wlan.nbuf - 1));
++
++ wed_w32(dev, MTK_WED_TX_BM_BUF_LEN, MTK_WED_PKT_SIZE);
++
++ wed_w32(dev, MTK_WED_TX_BM_DYN_THR,
++ FIELD_PREP(MTK_WED_TX_BM_DYN_THR_LO, 1) |
++ MTK_WED_TX_BM_DYN_THR_HI);
++
++ mtk_wed_reset(dev, MTK_WED_RESET_TX_BM);
++
++ wed_set(dev, MTK_WED_CTRL,
++ MTK_WED_CTRL_WED_TX_BM_EN |
++ MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
++
++ wed_clr(dev, MTK_WED_TX_BM_CTRL, MTK_WED_TX_BM_CTRL_PAUSE);
++}
++
++static void
++mtk_wed_ring_reset(struct mtk_wdma_desc *desc, int size)
++{
++ int i;
++
++ for (i = 0; i < size; i++) {
++ desc[i].buf0 = 0;
++ desc[i].ctrl = cpu_to_le32(MTK_WDMA_DESC_CTRL_DMA_DONE);
++ desc[i].buf1 = 0;
++ desc[i].info = 0;
++ }
++}
++
++static u32
++mtk_wed_check_busy(struct mtk_wed_device *dev)
++{
++ if (wed_r32(dev, MTK_WED_GLO_CFG) & MTK_WED_GLO_CFG_TX_DMA_BUSY)
++ return true;
++
++ if (wed_r32(dev, MTK_WED_WPDMA_GLO_CFG) &
++ MTK_WED_WPDMA_GLO_CFG_TX_DRV_BUSY)
++ return true;
++
++ if (wed_r32(dev, MTK_WED_CTRL) & MTK_WED_CTRL_WDMA_INT_AGENT_BUSY)
++ return true;
++
++ if (wed_r32(dev, MTK_WED_WDMA_GLO_CFG) &
++ MTK_WED_WDMA_GLO_CFG_RX_DRV_BUSY)
++ return true;
++
++ if (wdma_r32(dev, MTK_WDMA_GLO_CFG) &
++ MTK_WED_WDMA_GLO_CFG_RX_DRV_BUSY)
++ return true;
++
++ if (wed_r32(dev, MTK_WED_CTRL) &
++ (MTK_WED_CTRL_WED_TX_BM_BUSY | MTK_WED_CTRL_WED_TX_FREE_AGENT_BUSY))
++ return true;
++
++ return false;
++}
++
++static int
++mtk_wed_poll_busy(struct mtk_wed_device *dev)
++{
++ int sleep = 15000;
++ int timeout = 100 * sleep;
++ u32 val;
++
++ return read_poll_timeout(mtk_wed_check_busy, val, !val, sleep,
++ timeout, false, dev);
++}
++
++static void
++mtk_wed_reset_dma(struct mtk_wed_device *dev)
++{
++ bool busy = false;
++ u32 val;
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(dev->tx_ring); i++) {
++ struct mtk_wdma_desc *desc = dev->tx_ring[i].desc;
++
++ if (!desc)
++ continue;
++
++ mtk_wed_ring_reset(desc, MTK_WED_TX_RING_SIZE);
++ }
++
++ if (mtk_wed_poll_busy(dev))
++ busy = mtk_wed_check_busy(dev);
++
++ if (busy) {
++ mtk_wed_reset(dev, MTK_WED_RESET_WED_TX_DMA);
++ } else {
++ wed_w32(dev, MTK_WED_RESET_IDX,
++ MTK_WED_RESET_IDX_TX |
++ MTK_WED_RESET_IDX_RX);
++ wed_w32(dev, MTK_WED_RESET_IDX, 0);
++ }
++
++ wdma_w32(dev, MTK_WDMA_RESET_IDX, MTK_WDMA_RESET_IDX_RX);
++ wdma_w32(dev, MTK_WDMA_RESET_IDX, 0);
++
++ if (busy) {
++ mtk_wed_reset(dev, MTK_WED_RESET_WDMA_INT_AGENT);
++ mtk_wed_reset(dev, MTK_WED_RESET_WDMA_RX_DRV);
++ } else {
++ wed_w32(dev, MTK_WED_WDMA_RESET_IDX,
++ MTK_WED_WDMA_RESET_IDX_RX | MTK_WED_WDMA_RESET_IDX_DRV);
++ wed_w32(dev, MTK_WED_WDMA_RESET_IDX, 0);
++
++ wed_set(dev, MTK_WED_WDMA_GLO_CFG,
++ MTK_WED_WDMA_GLO_CFG_RST_INIT_COMPLETE);
++
++ wed_clr(dev, MTK_WED_WDMA_GLO_CFG,
++ MTK_WED_WDMA_GLO_CFG_RST_INIT_COMPLETE);
++ }
++
++ for (i = 0; i < 100; i++) {
++ val = wed_r32(dev, MTK_WED_TX_BM_INTF);
++ if (FIELD_GET(MTK_WED_TX_BM_INTF_TKFIFO_FDEP, val) == 0x40)
++ break;
++ }
++
++ mtk_wed_reset(dev, MTK_WED_RESET_TX_FREE_AGENT);
++ mtk_wed_reset(dev, MTK_WED_RESET_TX_BM);
++
++ if (busy) {
++ mtk_wed_reset(dev, MTK_WED_RESET_WPDMA_INT_AGENT);
++ mtk_wed_reset(dev, MTK_WED_RESET_WPDMA_TX_DRV);
++ mtk_wed_reset(dev, MTK_WED_RESET_WPDMA_RX_DRV);
++ } else {
++ wed_w32(dev, MTK_WED_WPDMA_RESET_IDX,
++ MTK_WED_WPDMA_RESET_IDX_TX |
++ MTK_WED_WPDMA_RESET_IDX_RX);
++ wed_w32(dev, MTK_WED_WPDMA_RESET_IDX, 0);
++ }
++
++}
++
++static int
++mtk_wed_ring_alloc(struct mtk_wed_device *dev, struct mtk_wed_ring *ring,
++ int size)
++{
++ ring->desc = dma_alloc_coherent(dev->hw->dev,
++ size * sizeof(*ring->desc),
++ &ring->desc_phys, GFP_KERNEL);
++ if (!ring->desc)
++ return -ENOMEM;
++
++ ring->size = size;
++ mtk_wed_ring_reset(ring->desc, size);
++
++ return 0;
++}
++
++static int
++mtk_wed_wdma_ring_setup(struct mtk_wed_device *dev, int idx, int size)
++{
++ struct mtk_wed_ring *wdma = &dev->tx_wdma[idx];
++
++ if (mtk_wed_ring_alloc(dev, wdma, MTK_WED_WDMA_RING_SIZE))
++ return -ENOMEM;
++
++ wdma_w32(dev, MTK_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_BASE,
++ wdma->desc_phys);
++ wdma_w32(dev, MTK_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_COUNT,
++ size);
++ wdma_w32(dev, MTK_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_CPU_IDX, 0);
++
++ wed_w32(dev, MTK_WED_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_BASE,
++ wdma->desc_phys);
++ wed_w32(dev, MTK_WED_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_COUNT,
++ size);
++
++ return 0;
++}
++
++static void
++mtk_wed_start(struct mtk_wed_device *dev, u32 irq_mask)
++{
++ u32 wdma_mask;
++ u32 val;
++ int i;
++
++ for (i = 0; i < ARRAY_SIZE(dev->tx_wdma); i++)
++ if (!dev->tx_wdma[i].desc)
++ mtk_wed_wdma_ring_setup(dev, i, 16);
++
++ wdma_mask = FIELD_PREP(MTK_WDMA_INT_MASK_RX_DONE, GENMASK(1, 0));
++
++ mtk_wed_hw_init(dev);
++
++ wed_set(dev, MTK_WED_CTRL,
++ MTK_WED_CTRL_WDMA_INT_AGENT_EN |
++ MTK_WED_CTRL_WPDMA_INT_AGENT_EN |
++ MTK_WED_CTRL_WED_TX_BM_EN |
++ MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
++
++ wed_w32(dev, MTK_WED_PCIE_INT_TRIGGER, MTK_WED_PCIE_INT_TRIGGER_STATUS);
++
++ wed_w32(dev, MTK_WED_WPDMA_INT_TRIGGER,
++ MTK_WED_WPDMA_INT_TRIGGER_RX_DONE |
++ MTK_WED_WPDMA_INT_TRIGGER_TX_DONE);
++
++ wed_set(dev, MTK_WED_WPDMA_INT_CTRL,
++ MTK_WED_WPDMA_INT_CTRL_SUBRT_ADV);
++
++ wed_w32(dev, MTK_WED_WDMA_INT_TRIGGER, wdma_mask);
++ wed_clr(dev, MTK_WED_WDMA_INT_CTRL, wdma_mask);
++
++ wdma_w32(dev, MTK_WDMA_INT_MASK, wdma_mask);
++ wdma_w32(dev, MTK_WDMA_INT_GRP2, wdma_mask);
++
++ wed_w32(dev, MTK_WED_WPDMA_INT_MASK, irq_mask);
++ wed_w32(dev, MTK_WED_INT_MASK, irq_mask);
++
++ wed_set(dev, MTK_WED_GLO_CFG,
++ MTK_WED_GLO_CFG_TX_DMA_EN |
++ MTK_WED_GLO_CFG_RX_DMA_EN);
++ wed_set(dev, MTK_WED_WPDMA_GLO_CFG,
++ MTK_WED_WPDMA_GLO_CFG_TX_DRV_EN |
++ MTK_WED_WPDMA_GLO_CFG_RX_DRV_EN);
++ wed_set(dev, MTK_WED_WDMA_GLO_CFG,
++ MTK_WED_WDMA_GLO_CFG_RX_DRV_EN);
++
++ mtk_wed_set_ext_int(dev, true);
++ val = dev->wlan.wpdma_phys |
++ MTK_PCIE_MIRROR_MAP_EN |
++ FIELD_PREP(MTK_PCIE_MIRROR_MAP_WED_ID, dev->hw->index);
++
++ if (dev->hw->index)
++ val |= BIT(1);
++ val |= BIT(0);
++ regmap_write(dev->hw->mirror, dev->hw->index * 4, val);
++
++ dev->running = true;
++}
++
++static int
++mtk_wed_attach(struct mtk_wed_device *dev)
++ __releases(RCU)
++{
++ struct mtk_wed_hw *hw;
++ int ret = 0;
++
++ RCU_LOCKDEP_WARN(!rcu_read_lock_held(),
++ "mtk_wed_attach without holding the RCU read lock");
++
++ if (pci_domain_nr(dev->wlan.pci_dev->bus) > 1 ||
++ !try_module_get(THIS_MODULE))
++ ret = -ENODEV;
++
++ rcu_read_unlock();
++
++ if (ret)
++ return ret;
++
++ mutex_lock(&hw_lock);
++
++ hw = mtk_wed_assign(dev);
++ if (!hw) {
++ module_put(THIS_MODULE);
++ ret = -ENODEV;
++ goto out;
++ }
++
++ dev_info(&dev->wlan.pci_dev->dev, "attaching wed device %d\n", hw->index);
++
++ dev->hw = hw;
++ dev->dev = hw->dev;
++ dev->irq = hw->irq;
++ dev->wdma_idx = hw->index;
++
++ if (hw->eth->dma_dev == hw->eth->dev &&
++ of_dma_is_coherent(hw->eth->dev->of_node))
++ mtk_eth_set_dma_device(hw->eth, hw->dev);
++
++ ret = mtk_wed_buffer_alloc(dev);
++ if (ret) {
++ mtk_wed_detach(dev);
++ goto out;
++ }
++
++ mtk_wed_hw_init_early(dev);
++ regmap_update_bits(hw->hifsys, HIFSYS_DMA_AG_MAP, BIT(hw->index), 0);
++
++out:
++ mutex_unlock(&hw_lock);
++
++ return ret;
++}
++
++static int
++mtk_wed_tx_ring_setup(struct mtk_wed_device *dev, int idx, void __iomem *regs)
++{
++ struct mtk_wed_ring *ring = &dev->tx_ring[idx];
++
++ /*
++ * Tx ring redirection:
++ * Instead of configuring the WLAN PDMA TX ring directly, the WLAN
++ * driver allocated DMA ring gets configured into WED MTK_WED_RING_TX(n)
++ * registers.
++ *
++ * WED driver posts its own DMA ring as WLAN PDMA TX and configures it
++ * into MTK_WED_WPDMA_RING_TX(n) registers.
++ * It gets filled with packets picked up from WED TX ring and from
++ * WDMA RX.
++ */
++
++ BUG_ON(idx > ARRAY_SIZE(dev->tx_ring));
++
++ if (mtk_wed_ring_alloc(dev, ring, MTK_WED_TX_RING_SIZE))
++ return -ENOMEM;
++
++ if (mtk_wed_wdma_ring_setup(dev, idx, MTK_WED_WDMA_RING_SIZE))
++ return -ENOMEM;
++
++ ring->reg_base = MTK_WED_RING_TX(idx);
++ ring->wpdma = regs;
++
++ /* WED -> WPDMA */
++ wpdma_tx_w32(dev, idx, MTK_WED_RING_OFS_BASE, ring->desc_phys);
++ wpdma_tx_w32(dev, idx, MTK_WED_RING_OFS_COUNT, MTK_WED_TX_RING_SIZE);
++ wpdma_tx_w32(dev, idx, MTK_WED_RING_OFS_CPU_IDX, 0);
++
++ wed_w32(dev, MTK_WED_WPDMA_RING_TX(idx) + MTK_WED_RING_OFS_BASE,
++ ring->desc_phys);
++ wed_w32(dev, MTK_WED_WPDMA_RING_TX(idx) + MTK_WED_RING_OFS_COUNT,
++ MTK_WED_TX_RING_SIZE);
++ wed_w32(dev, MTK_WED_WPDMA_RING_TX(idx) + MTK_WED_RING_OFS_CPU_IDX, 0);
++
++ return 0;
++}
++
++static int
++mtk_wed_txfree_ring_setup(struct mtk_wed_device *dev, void __iomem *regs)
++{
++ struct mtk_wed_ring *ring = &dev->txfree_ring;
++ int i;
++
++ /*
++ * For txfree event handling, the same DMA ring is shared between WED
++ * and WLAN. The WLAN driver accesses the ring index registers through
++ * WED
++ */
++ ring->reg_base = MTK_WED_RING_RX(1);
++ ring->wpdma = regs;
++
++ for (i = 0; i < 12; i += 4) {
++ u32 val = readl(regs + i);
++
++ wed_w32(dev, MTK_WED_RING_RX(1) + i, val);
++ wed_w32(dev, MTK_WED_WPDMA_RING_RX(1) + i, val);
++ }
++
++ return 0;
++}
++
++static u32
++mtk_wed_irq_get(struct mtk_wed_device *dev, u32 mask)
++{
++ u32 val;
++
++ val = wed_r32(dev, MTK_WED_EXT_INT_STATUS);
++ wed_w32(dev, MTK_WED_EXT_INT_STATUS, val);
++ val &= MTK_WED_EXT_INT_STATUS_ERROR_MASK;
++ if (!dev->hw->num_flows)
++ val &= ~MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD;
++ if (val && net_ratelimit())
++ pr_err("mtk_wed%d: error status=%08x\n", dev->hw->index, val);
++
++ val = wed_r32(dev, MTK_WED_INT_STATUS);
++ val &= mask;
++ wed_w32(dev, MTK_WED_INT_STATUS, val); /* ACK */
++
++ return val;
++}
++
++static void
++mtk_wed_irq_set_mask(struct mtk_wed_device *dev, u32 mask)
++{
++ if (!dev->running)
++ return;
++
++ mtk_wed_set_ext_int(dev, !!mask);
++ wed_w32(dev, MTK_WED_INT_MASK, mask);
++}
++
++int mtk_wed_flow_add(int index)
++{
++ struct mtk_wed_hw *hw = hw_list[index];
++ int ret;
++
++ if (!hw || !hw->wed_dev)
++ return -ENODEV;
++
++ if (hw->num_flows) {
++ hw->num_flows++;
++ return 0;
++ }
++
++ mutex_lock(&hw_lock);
++ if (!hw->wed_dev) {
++ ret = -ENODEV;
++ goto out;
++ }
++
++ ret = hw->wed_dev->wlan.offload_enable(hw->wed_dev);
++ if (!ret)
++ hw->num_flows++;
++ mtk_wed_set_ext_int(hw->wed_dev, true);
++
++out:
++ mutex_unlock(&hw_lock);
++
++ return ret;
++}
++
++void mtk_wed_flow_remove(int index)
++{
++ struct mtk_wed_hw *hw = hw_list[index];
++
++ if (!hw)
++ return;
++
++ if (--hw->num_flows)
++ return;
++
++ mutex_lock(&hw_lock);
++ if (!hw->wed_dev)
++ goto out;
++
++ hw->wed_dev->wlan.offload_disable(hw->wed_dev);
++ mtk_wed_set_ext_int(hw->wed_dev, true);
++
++out:
++ mutex_unlock(&hw_lock);
++}
++
++void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
++ void __iomem *wdma, int index)
++{
++ static const struct mtk_wed_ops wed_ops = {
++ .attach = mtk_wed_attach,
++ .tx_ring_setup = mtk_wed_tx_ring_setup,
++ .txfree_ring_setup = mtk_wed_txfree_ring_setup,
++ .start = mtk_wed_start,
++ .stop = mtk_wed_stop,
++ .reset_dma = mtk_wed_reset_dma,
++ .reg_read = wed_r32,
++ .reg_write = wed_w32,
++ .irq_get = mtk_wed_irq_get,
++ .irq_set_mask = mtk_wed_irq_set_mask,
++ .detach = mtk_wed_detach,
++ };
++ struct device_node *eth_np = eth->dev->of_node;
++ struct platform_device *pdev;
++ struct mtk_wed_hw *hw;
++ struct regmap *regs;
++ int irq;
++
++ if (!np)
++ return;
++
++ pdev = of_find_device_by_node(np);
++ if (!pdev)
++ return;
++
++ get_device(&pdev->dev);
++ irq = platform_get_irq(pdev, 0);
++ if (irq < 0)
++ return;
++
++ regs = syscon_regmap_lookup_by_phandle(np, NULL);
++ if (!regs)
++ return;
++
++ rcu_assign_pointer(mtk_soc_wed_ops, &wed_ops);
++
++ mutex_lock(&hw_lock);
++
++ if (WARN_ON(hw_list[index]))
++ goto unlock;
++
++ hw = kzalloc(sizeof(*hw), GFP_KERNEL);
++ hw->node = np;
++ hw->regs = regs;
++ hw->eth = eth;
++ hw->dev = &pdev->dev;
++ hw->wdma = wdma;
++ hw->index = index;
++ hw->irq = irq;
++ hw->mirror = syscon_regmap_lookup_by_phandle(eth_np,
++ "mediatek,pcie-mirror");
++ hw->hifsys = syscon_regmap_lookup_by_phandle(eth_np,
++ "mediatek,hifsys");
++ if (IS_ERR(hw->mirror) || IS_ERR(hw->hifsys)) {
++ kfree(hw);
++ goto unlock;
++ }
++
++ if (!index) {
++ regmap_write(hw->mirror, 0, 0);
++ regmap_write(hw->mirror, 4, 0);
++ }
++ mtk_wed_hw_add_debugfs(hw);
++
++ hw_list[index] = hw;
++
++unlock:
++ mutex_unlock(&hw_lock);
++}
++
++void mtk_wed_exit(void)
++{
++ int i;
++
++ rcu_assign_pointer(mtk_soc_wed_ops, NULL);
++
++ synchronize_rcu();
++
++ for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
++ struct mtk_wed_hw *hw;
++
++ hw = hw_list[i];
++ if (!hw)
++ continue;
++
++ hw_list[i] = NULL;
++ debugfs_remove(hw->debugfs_dir);
++ put_device(hw->dev);
++ kfree(hw);
++ }
++}
+--- /dev/null
++++ b/drivers/net/ethernet/mediatek/mtk_wed.h
+@@ -0,0 +1,128 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/* Copyright (C) 2021 Felix Fietkau <nbd@nbd.name> */
++
++#ifndef __MTK_WED_PRIV_H
++#define __MTK_WED_PRIV_H
++
++#include <linux/soc/mediatek/mtk_wed.h>
++#include <linux/debugfs.h>
++#include <linux/regmap.h>
++
++struct mtk_eth;
++
++struct mtk_wed_hw {
++ struct device_node *node;
++ struct mtk_eth *eth;
++ struct regmap *regs;
++ struct regmap *hifsys;
++ struct device *dev;
++ void __iomem *wdma;
++ struct regmap *mirror;
++ struct dentry *debugfs_dir;
++ struct mtk_wed_device *wed_dev;
++ u32 debugfs_reg;
++ u32 num_flows;
++ char dirname[5];
++ int irq;
++ int index;
++};
++
++
++#ifdef CONFIG_NET_MEDIATEK_SOC_WED
++static inline void
++wed_w32(struct mtk_wed_device *dev, u32 reg, u32 val)
++{
++ regmap_write(dev->hw->regs, reg, val);
++}
++
++static inline u32
++wed_r32(struct mtk_wed_device *dev, u32 reg)
++{
++ unsigned int val;
++
++ regmap_read(dev->hw->regs, reg, &val);
++
++ return val;
++}
++
++static inline void
++wdma_w32(struct mtk_wed_device *dev, u32 reg, u32 val)
++{
++ writel(val, dev->hw->wdma + reg);
++}
++
++static inline u32
++wdma_r32(struct mtk_wed_device *dev, u32 reg)
++{
++ return readl(dev->hw->wdma + reg);
++}
++
++static inline u32
++wpdma_tx_r32(struct mtk_wed_device *dev, int ring, u32 reg)
++{
++ if (!dev->tx_ring[ring].wpdma)
++ return 0;
++
++ return readl(dev->tx_ring[ring].wpdma + reg);
++}
++
++static inline void
++wpdma_tx_w32(struct mtk_wed_device *dev, int ring, u32 reg, u32 val)
++{
++ if (!dev->tx_ring[ring].wpdma)
++ return;
++
++ writel(val, dev->tx_ring[ring].wpdma + reg);
++}
++
++static inline u32
++wpdma_txfree_r32(struct mtk_wed_device *dev, u32 reg)
++{
++ if (!dev->txfree_ring.wpdma)
++ return 0;
++
++ return readl(dev->txfree_ring.wpdma + reg);
++}
++
++static inline void
++wpdma_txfree_w32(struct mtk_wed_device *dev, u32 reg, u32 val)
++{
++ if (!dev->txfree_ring.wpdma)
++ return;
++
++ writel(val, dev->txfree_ring.wpdma + reg);
++}
++
++void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
++ void __iomem *wdma, int index);
++void mtk_wed_exit(void);
++int mtk_wed_flow_add(int index);
++void mtk_wed_flow_remove(int index);
++#else
++static inline void
++mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
++ void __iomem *wdma, int index)
++{
++}
++static inline void
++mtk_wed_exit(void)
++{
++}
++static inline int mtk_wed_flow_add(int index)
++{
++ return -EINVAL;
++}
++static inline void mtk_wed_flow_remove(int index)
++{
++}
++#endif
++
++#ifdef CONFIG_DEBUG_FS
++void mtk_wed_hw_add_debugfs(struct mtk_wed_hw *hw);
++#else
++static inline void mtk_wed_hw_add_debugfs(struct mtk_wed_hw *hw)
++{
++}
++#endif
++
++#endif
+--- /dev/null
++++ b/drivers/net/ethernet/mediatek/mtk_wed_debugfs.c
+@@ -0,0 +1,175 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/* Copyright (C) 2021 Felix Fietkau <nbd@nbd.name> */
++
++#include <linux/seq_file.h>
++#include "mtk_wed.h"
++#include "mtk_wed_regs.h"
++
++struct reg_dump {
++ const char *name;
++ u16 offset;
++ u8 type;
++ u8 base;
++};
++
++enum {
++ DUMP_TYPE_STRING,
++ DUMP_TYPE_WED,
++ DUMP_TYPE_WDMA,
++ DUMP_TYPE_WPDMA_TX,
++ DUMP_TYPE_WPDMA_TXFREE,
++};
++
++#define DUMP_STR(_str) { _str, 0, DUMP_TYPE_STRING }
++#define DUMP_REG(_reg, ...) { #_reg, MTK_##_reg, __VA_ARGS__ }
++#define DUMP_RING(_prefix, _base, ...) \
++ { _prefix " BASE", _base, __VA_ARGS__ }, \
++ { _prefix " CNT", _base + 0x4, __VA_ARGS__ }, \
++ { _prefix " CIDX", _base + 0x8, __VA_ARGS__ }, \
++ { _prefix " DIDX", _base + 0xc, __VA_ARGS__ }
++
++#define DUMP_WED(_reg) DUMP_REG(_reg, DUMP_TYPE_WED)
++#define DUMP_WED_RING(_base) DUMP_RING(#_base, MTK_##_base, DUMP_TYPE_WED)
++
++#define DUMP_WDMA(_reg) DUMP_REG(_reg, DUMP_TYPE_WDMA)
++#define DUMP_WDMA_RING(_base) DUMP_RING(#_base, MTK_##_base, DUMP_TYPE_WDMA)
++
++#define DUMP_WPDMA_TX_RING(_n) DUMP_RING("WPDMA_TX" #_n, 0, DUMP_TYPE_WPDMA_TX, _n)
++#define DUMP_WPDMA_TXFREE_RING DUMP_RING("WPDMA_RX1", 0, DUMP_TYPE_WPDMA_TXFREE)
++
++static void
++print_reg_val(struct seq_file *s, const char *name, u32 val)
++{
++ seq_printf(s, "%-32s %08x\n", name, val);
++}
++
++static void
++dump_wed_regs(struct seq_file *s, struct mtk_wed_device *dev,
++ const struct reg_dump *regs, int n_regs)
++{
++ const struct reg_dump *cur;
++ u32 val;
++
++ for (cur = regs; cur < ®s[n_regs]; cur++) {
++ switch (cur->type) {
++ case DUMP_TYPE_STRING:
++ seq_printf(s, "%s======== %s:\n",
++ cur > regs ? "\n" : "",
++ cur->name);
++ continue;
++ case DUMP_TYPE_WED:
++ val = wed_r32(dev, cur->offset);
++ break;
++ case DUMP_TYPE_WDMA:
++ val = wdma_r32(dev, cur->offset);
++ break;
++ case DUMP_TYPE_WPDMA_TX:
++ val = wpdma_tx_r32(dev, cur->base, cur->offset);
++ break;
++ case DUMP_TYPE_WPDMA_TXFREE:
++ val = wpdma_txfree_r32(dev, cur->offset);
++ break;
++ }
++ print_reg_val(s, cur->name, val);
++ }
++}
++
++
++static int
++wed_txinfo_show(struct seq_file *s, void *data)
++{
++ static const struct reg_dump regs[] = {
++ DUMP_STR("WED TX"),
++ DUMP_WED(WED_TX_MIB(0)),
++ DUMP_WED_RING(WED_RING_TX(0)),
++
++ DUMP_WED(WED_TX_MIB(1)),
++ DUMP_WED_RING(WED_RING_TX(1)),
++
++ DUMP_STR("WPDMA TX"),
++ DUMP_WED(WED_WPDMA_TX_MIB(0)),
++ DUMP_WED_RING(WED_WPDMA_RING_TX(0)),
++ DUMP_WED(WED_WPDMA_TX_COHERENT_MIB(0)),
++
++ DUMP_WED(WED_WPDMA_TX_MIB(1)),
++ DUMP_WED_RING(WED_WPDMA_RING_TX(1)),
++ DUMP_WED(WED_WPDMA_TX_COHERENT_MIB(1)),
++
++ DUMP_STR("WPDMA TX"),
++ DUMP_WPDMA_TX_RING(0),
++ DUMP_WPDMA_TX_RING(1),
++
++ DUMP_STR("WED WDMA RX"),
++ DUMP_WED(WED_WDMA_RX_MIB(0)),
++ DUMP_WED_RING(WED_WDMA_RING_RX(0)),
++ DUMP_WED(WED_WDMA_RX_THRES(0)),
++ DUMP_WED(WED_WDMA_RX_RECYCLE_MIB(0)),
++ DUMP_WED(WED_WDMA_RX_PROCESSED_MIB(0)),
++
++ DUMP_WED(WED_WDMA_RX_MIB(1)),
++ DUMP_WED_RING(WED_WDMA_RING_RX(1)),
++ DUMP_WED(WED_WDMA_RX_THRES(1)),
++ DUMP_WED(WED_WDMA_RX_RECYCLE_MIB(1)),
++ DUMP_WED(WED_WDMA_RX_PROCESSED_MIB(1)),
++
++ DUMP_STR("WDMA RX"),
++ DUMP_WDMA(WDMA_GLO_CFG),
++ DUMP_WDMA_RING(WDMA_RING_RX(0)),
++ DUMP_WDMA_RING(WDMA_RING_RX(1)),
++ };
++ struct mtk_wed_hw *hw = s->private;
++ struct mtk_wed_device *dev = hw->wed_dev;
++
++ if (!dev)
++ return 0;
++
++ dump_wed_regs(s, dev, regs, ARRAY_SIZE(regs));
++
++ return 0;
++}
++DEFINE_SHOW_ATTRIBUTE(wed_txinfo);
++
++
++static int
++mtk_wed_reg_set(void *data, u64 val)
++{
++ struct mtk_wed_hw *hw = data;
++
++ regmap_write(hw->regs, hw->debugfs_reg, val);
++
++ return 0;
++}
++
++static int
++mtk_wed_reg_get(void *data, u64 *val)
++{
++ struct mtk_wed_hw *hw = data;
++ unsigned int regval;
++ int ret;
++
++ ret = regmap_read(hw->regs, hw->debugfs_reg, ®val);
++ if (ret)
++ return ret;
++
++ *val = regval;
++
++ return 0;
++}
++
++DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mtk_wed_reg_get, mtk_wed_reg_set,
++ "0x%08llx\n");
++
++void mtk_wed_hw_add_debugfs(struct mtk_wed_hw *hw)
++{
++ struct dentry *dir;
++
++ snprintf(hw->dirname, sizeof(hw->dirname), "wed%d", hw->index);
++ dir = debugfs_create_dir(hw->dirname, NULL);
++ if (!dir)
++ return;
++
++ hw->debugfs_dir = dir;
++ debugfs_create_u32("regidx", 0600, dir, &hw->debugfs_reg);
++ debugfs_create_file_unsafe("regval", 0600, dir, hw, &fops_regval);
++ debugfs_create_file_unsafe("txinfo", 0400, dir, hw, &wed_txinfo_fops);
++}
+--- /dev/null
++++ b/drivers/net/ethernet/mediatek/mtk_wed_ops.c
+@@ -0,0 +1,8 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/* Copyright (C) 2020 Felix Fietkau <nbd@nbd.name> */
++
++#include <linux/kernel.h>
++#include <linux/soc/mediatek/mtk_wed.h>
++
++const struct mtk_wed_ops __rcu *mtk_soc_wed_ops;
++EXPORT_SYMBOL_GPL(mtk_soc_wed_ops);
+--- /dev/null
++++ b/drivers/net/ethernet/mediatek/mtk_wed_regs.h
+@@ -0,0 +1,251 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/* Copyright (C) 2020 Felix Fietkau <nbd@nbd.name> */
++
++#ifndef __MTK_WED_REGS_H
++#define __MTK_WED_REGS_H
++
++#define MTK_WDMA_DESC_CTRL_LEN1 GENMASK(14, 0)
++#define MTK_WDMA_DESC_CTRL_LAST_SEG1 BIT(15)
++#define MTK_WDMA_DESC_CTRL_BURST BIT(16)
++#define MTK_WDMA_DESC_CTRL_LEN0 GENMASK(29, 16)
++#define MTK_WDMA_DESC_CTRL_LAST_SEG0 BIT(30)
++#define MTK_WDMA_DESC_CTRL_DMA_DONE BIT(31)
++
++struct mtk_wdma_desc {
++ __le32 buf0;
++ __le32 ctrl;
++ __le32 buf1;
++ __le32 info;
++} __packed __aligned(4);
++
++#define MTK_WED_RESET 0x008
++#define MTK_WED_RESET_TX_BM BIT(0)
++#define MTK_WED_RESET_TX_FREE_AGENT BIT(4)
++#define MTK_WED_RESET_WPDMA_TX_DRV BIT(8)
++#define MTK_WED_RESET_WPDMA_RX_DRV BIT(9)
++#define MTK_WED_RESET_WPDMA_INT_AGENT BIT(11)
++#define MTK_WED_RESET_WED_TX_DMA BIT(12)
++#define MTK_WED_RESET_WDMA_RX_DRV BIT(17)
++#define MTK_WED_RESET_WDMA_INT_AGENT BIT(19)
++#define MTK_WED_RESET_WED BIT(31)
++
++#define MTK_WED_CTRL 0x00c
++#define MTK_WED_CTRL_WPDMA_INT_AGENT_EN BIT(0)
++#define MTK_WED_CTRL_WPDMA_INT_AGENT_BUSY BIT(1)
++#define MTK_WED_CTRL_WDMA_INT_AGENT_EN BIT(2)
++#define MTK_WED_CTRL_WDMA_INT_AGENT_BUSY BIT(3)
++#define MTK_WED_CTRL_WED_TX_BM_EN BIT(8)
++#define MTK_WED_CTRL_WED_TX_BM_BUSY BIT(9)
++#define MTK_WED_CTRL_WED_TX_FREE_AGENT_EN BIT(10)
++#define MTK_WED_CTRL_WED_TX_FREE_AGENT_BUSY BIT(11)
++#define MTK_WED_CTRL_RESERVE_EN BIT(12)
++#define MTK_WED_CTRL_RESERVE_BUSY BIT(13)
++#define MTK_WED_CTRL_FINAL_DIDX_READ BIT(24)
++#define MTK_WED_CTRL_MIB_READ_CLEAR BIT(28)
++
++#define MTK_WED_EXT_INT_STATUS 0x020
++#define MTK_WED_EXT_INT_STATUS_TF_LEN_ERR BIT(0)
++#define MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD BIT(1)
++#define MTK_WED_EXT_INT_STATUS_TKID_TITO_INVALID BIT(4)
++#define MTK_WED_EXT_INT_STATUS_TX_FBUF_LO_TH BIT(8)
++#define MTK_WED_EXT_INT_STATUS_TX_FBUF_HI_TH BIT(9)
++#define MTK_WED_EXT_INT_STATUS_RX_FBUF_LO_TH BIT(12)
++#define MTK_WED_EXT_INT_STATUS_RX_FBUF_HI_TH BIT(13)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_R_RESP_ERR BIT(16)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_W_RESP_ERR BIT(17)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_COHERENT BIT(18)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_INIT_WDMA_EN BIT(19)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_BM_DMAD_COHERENT BIT(20)
++#define MTK_WED_EXT_INT_STATUS_TX_DRV_R_RESP_ERR BIT(21)
++#define MTK_WED_EXT_INT_STATUS_TX_DRV_W_RESP_ERR BIT(22)
++#define MTK_WED_EXT_INT_STATUS_RX_DRV_DMA_RECYCLE BIT(24)
++#define MTK_WED_EXT_INT_STATUS_ERROR_MASK (MTK_WED_EXT_INT_STATUS_TF_LEN_ERR | \
++ MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD | \
++ MTK_WED_EXT_INT_STATUS_TKID_TITO_INVALID | \
++ MTK_WED_EXT_INT_STATUS_RX_DRV_R_RESP_ERR | \
++ MTK_WED_EXT_INT_STATUS_RX_DRV_W_RESP_ERR | \
++ MTK_WED_EXT_INT_STATUS_RX_DRV_INIT_WDMA_EN | \
++ MTK_WED_EXT_INT_STATUS_TX_DRV_R_RESP_ERR | \
++ MTK_WED_EXT_INT_STATUS_TX_DRV_W_RESP_ERR)
++
++#define MTK_WED_EXT_INT_MASK 0x028
++
++#define MTK_WED_STATUS 0x060
++#define MTK_WED_STATUS_TX GENMASK(15, 8)
++
++#define MTK_WED_TX_BM_CTRL 0x080
++#define MTK_WED_TX_BM_CTRL_VLD_GRP_NUM GENMASK(6, 0)
++#define MTK_WED_TX_BM_CTRL_RSV_GRP_NUM GENMASK(22, 16)
++#define MTK_WED_TX_BM_CTRL_PAUSE BIT(28)
++
++#define MTK_WED_TX_BM_BASE 0x084
++
++#define MTK_WED_TX_BM_TKID 0x088
++#define MTK_WED_TX_BM_TKID_START GENMASK(15, 0)
++#define MTK_WED_TX_BM_TKID_END GENMASK(31, 16)
++
++#define MTK_WED_TX_BM_BUF_LEN 0x08c
++
++#define MTK_WED_TX_BM_INTF 0x09c
++#define MTK_WED_TX_BM_INTF_TKID GENMASK(15, 0)
++#define MTK_WED_TX_BM_INTF_TKFIFO_FDEP GENMASK(23, 16)
++#define MTK_WED_TX_BM_INTF_TKID_VALID BIT(28)
++#define MTK_WED_TX_BM_INTF_TKID_READ BIT(29)
++
++#define MTK_WED_TX_BM_DYN_THR 0x0a0
++#define MTK_WED_TX_BM_DYN_THR_LO GENMASK(6, 0)
++#define MTK_WED_TX_BM_DYN_THR_HI GENMASK(22, 16)
++
++#define MTK_WED_INT_STATUS 0x200
++#define MTK_WED_INT_MASK 0x204
++
++#define MTK_WED_GLO_CFG 0x208
++#define MTK_WED_GLO_CFG_TX_DMA_EN BIT(0)
++#define MTK_WED_GLO_CFG_TX_DMA_BUSY BIT(1)
++#define MTK_WED_GLO_CFG_RX_DMA_EN BIT(2)
++#define MTK_WED_GLO_CFG_RX_DMA_BUSY BIT(3)
++#define MTK_WED_GLO_CFG_RX_BT_SIZE GENMASK(5, 4)
++#define MTK_WED_GLO_CFG_TX_WB_DDONE BIT(6)
++#define MTK_WED_GLO_CFG_BIG_ENDIAN BIT(7)
++#define MTK_WED_GLO_CFG_DIS_BT_SIZE_ALIGN BIT(8)
++#define MTK_WED_GLO_CFG_TX_BT_SIZE_LO BIT(9)
++#define MTK_WED_GLO_CFG_MULTI_DMA_EN GENMASK(11, 10)
++#define MTK_WED_GLO_CFG_FIFO_LITTLE_ENDIAN BIT(12)
++#define MTK_WED_GLO_CFG_MI_DEPTH_RD GENMASK(21, 13)
++#define MTK_WED_GLO_CFG_TX_BT_SIZE_HI GENMASK(23, 22)
++#define MTK_WED_GLO_CFG_SW_RESET BIT(24)
++#define MTK_WED_GLO_CFG_FIRST_TOKEN_ONLY BIT(26)
++#define MTK_WED_GLO_CFG_OMIT_RX_INFO BIT(27)
++#define MTK_WED_GLO_CFG_OMIT_TX_INFO BIT(28)
++#define MTK_WED_GLO_CFG_BYTE_SWAP BIT(29)
++#define MTK_WED_GLO_CFG_RX_2B_OFFSET BIT(31)
++
++#define MTK_WED_RESET_IDX 0x20c
++#define MTK_WED_RESET_IDX_TX GENMASK(3, 0)
++#define MTK_WED_RESET_IDX_RX GENMASK(17, 16)
++
++#define MTK_WED_TX_MIB(_n) (0x2a0 + (_n) * 4)
++
++#define MTK_WED_RING_TX(_n) (0x300 + (_n) * 0x10)
++
++#define MTK_WED_RING_RX(_n) (0x400 + (_n) * 0x10)
++
++#define MTK_WED_WPDMA_INT_TRIGGER 0x504
++#define MTK_WED_WPDMA_INT_TRIGGER_RX_DONE BIT(1)
++#define MTK_WED_WPDMA_INT_TRIGGER_TX_DONE GENMASK(5, 4)
++
++#define MTK_WED_WPDMA_GLO_CFG 0x508
++#define MTK_WED_WPDMA_GLO_CFG_TX_DRV_EN BIT(0)
++#define MTK_WED_WPDMA_GLO_CFG_TX_DRV_BUSY BIT(1)
++#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_EN BIT(2)
++#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_BUSY BIT(3)
++#define MTK_WED_WPDMA_GLO_CFG_RX_BT_SIZE GENMASK(5, 4)
++#define MTK_WED_WPDMA_GLO_CFG_TX_WB_DDONE BIT(6)
++#define MTK_WED_WPDMA_GLO_CFG_BIG_ENDIAN BIT(7)
++#define MTK_WED_WPDMA_GLO_CFG_DIS_BT_SIZE_ALIGN BIT(8)
++#define MTK_WED_WPDMA_GLO_CFG_TX_BT_SIZE_LO BIT(9)
++#define MTK_WED_WPDMA_GLO_CFG_MULTI_DMA_EN GENMASK(11, 10)
++#define MTK_WED_WPDMA_GLO_CFG_FIFO_LITTLE_ENDIAN BIT(12)
++#define MTK_WED_WPDMA_GLO_CFG_MI_DEPTH_RD GENMASK(21, 13)
++#define MTK_WED_WPDMA_GLO_CFG_TX_BT_SIZE_HI GENMASK(23, 22)
++#define MTK_WED_WPDMA_GLO_CFG_SW_RESET BIT(24)
++#define MTK_WED_WPDMA_GLO_CFG_FIRST_TOKEN_ONLY BIT(26)
++#define MTK_WED_WPDMA_GLO_CFG_OMIT_RX_INFO BIT(27)
++#define MTK_WED_WPDMA_GLO_CFG_OMIT_TX_INFO BIT(28)
++#define MTK_WED_WPDMA_GLO_CFG_BYTE_SWAP BIT(29)
++#define MTK_WED_WPDMA_GLO_CFG_RX_2B_OFFSET BIT(31)
++
++#define MTK_WED_WPDMA_RESET_IDX 0x50c
++#define MTK_WED_WPDMA_RESET_IDX_TX GENMASK(3, 0)
++#define MTK_WED_WPDMA_RESET_IDX_RX GENMASK(17, 16)
++
++#define MTK_WED_WPDMA_INT_CTRL 0x520
++#define MTK_WED_WPDMA_INT_CTRL_SUBRT_ADV BIT(21)
++
++#define MTK_WED_WPDMA_INT_MASK 0x524
++
++#define MTK_WED_PCIE_CFG_BASE 0x560
++
++#define MTK_WED_PCIE_INT_TRIGGER 0x570
++#define MTK_WED_PCIE_INT_TRIGGER_STATUS BIT(16)
++
++#define MTK_WED_WPDMA_CFG_BASE 0x580
++
++#define MTK_WED_WPDMA_TX_MIB(_n) (0x5a0 + (_n) * 4)
++#define MTK_WED_WPDMA_TX_COHERENT_MIB(_n) (0x5d0 + (_n) * 4)
++
++#define MTK_WED_WPDMA_RING_TX(_n) (0x600 + (_n) * 0x10)
++#define MTK_WED_WPDMA_RING_RX(_n) (0x700 + (_n) * 0x10)
++#define MTK_WED_WDMA_RING_RX(_n) (0x900 + (_n) * 0x10)
++#define MTK_WED_WDMA_RX_THRES(_n) (0x940 + (_n) * 0x4)
++
++#define MTK_WED_WDMA_GLO_CFG 0xa04
++#define MTK_WED_WDMA_GLO_CFG_TX_DRV_EN BIT(0)
++#define MTK_WED_WDMA_GLO_CFG_RX_DRV_EN BIT(2)
++#define MTK_WED_WDMA_GLO_CFG_RX_DRV_BUSY BIT(3)
++#define MTK_WED_WDMA_GLO_CFG_BT_SIZE GENMASK(5, 4)
++#define MTK_WED_WDMA_GLO_CFG_TX_WB_DDONE BIT(6)
++#define MTK_WED_WDMA_GLO_CFG_RX_DIS_FSM_AUTO_IDLE BIT(13)
++#define MTK_WED_WDMA_GLO_CFG_WCOMPLETE_SEL BIT(16)
++#define MTK_WED_WDMA_GLO_CFG_INIT_PHASE_RXDMA_BYPASS BIT(17)
++#define MTK_WED_WDMA_GLO_CFG_INIT_PHASE_BYPASS BIT(18)
++#define MTK_WED_WDMA_GLO_CFG_FSM_RETURN_IDLE BIT(19)
++#define MTK_WED_WDMA_GLO_CFG_WAIT_COHERENT BIT(20)
++#define MTK_WED_WDMA_GLO_CFG_AXI_W_AFTER_AW BIT(21)
++#define MTK_WED_WDMA_GLO_CFG_IDLE_DMAD_SUPPLY_SINGLE_W BIT(22)
++#define MTK_WED_WDMA_GLO_CFG_IDLE_DMAD_SUPPLY BIT(23)
++#define MTK_WED_WDMA_GLO_CFG_DYNAMIC_SKIP_DMAD_PREP BIT(24)
++#define MTK_WED_WDMA_GLO_CFG_DYNAMIC_DMAD_RECYCLE BIT(25)
++#define MTK_WED_WDMA_GLO_CFG_RST_INIT_COMPLETE BIT(26)
++#define MTK_WED_WDMA_GLO_CFG_RXDRV_CLKGATE_BYPASS BIT(30)
++
++#define MTK_WED_WDMA_RESET_IDX 0xa08
++#define MTK_WED_WDMA_RESET_IDX_RX GENMASK(17, 16)
++#define MTK_WED_WDMA_RESET_IDX_DRV GENMASK(25, 24)
++
++#define MTK_WED_WDMA_INT_TRIGGER 0xa28
++#define MTK_WED_WDMA_INT_TRIGGER_RX_DONE GENMASK(17, 16)
++
++#define MTK_WED_WDMA_INT_CTRL 0xa2c
++#define MTK_WED_WDMA_INT_CTRL_POLL_SRC_SEL GENMASK(17, 16)
++
++#define MTK_WED_WDMA_OFFSET0 0xaa4
++#define MTK_WED_WDMA_OFFSET1 0xaa8
++
++#define MTK_WED_WDMA_RX_MIB(_n) (0xae0 + (_n) * 4)
++#define MTK_WED_WDMA_RX_RECYCLE_MIB(_n) (0xae8 + (_n) * 4)
++#define MTK_WED_WDMA_RX_PROCESSED_MIB(_n) (0xaf0 + (_n) * 4)
++
++#define MTK_WED_RING_OFS_BASE 0x00
++#define MTK_WED_RING_OFS_COUNT 0x04
++#define MTK_WED_RING_OFS_CPU_IDX 0x08
++#define MTK_WED_RING_OFS_DMA_IDX 0x0c
++
++#define MTK_WDMA_RING_RX(_n) (0x100 + (_n) * 0x10)
++
++#define MTK_WDMA_GLO_CFG 0x204
++#define MTK_WDMA_GLO_CFG_RX_INFO_PRERES GENMASK(28, 26)
++
++#define MTK_WDMA_RESET_IDX 0x208
++#define MTK_WDMA_RESET_IDX_TX GENMASK(3, 0)
++#define MTK_WDMA_RESET_IDX_RX GENMASK(17, 16)
++
++#define MTK_WDMA_INT_MASK 0x228
++#define MTK_WDMA_INT_MASK_TX_DONE GENMASK(3, 0)
++#define MTK_WDMA_INT_MASK_RX_DONE GENMASK(17, 16)
++#define MTK_WDMA_INT_MASK_TX_DELAY BIT(28)
++#define MTK_WDMA_INT_MASK_TX_COHERENT BIT(29)
++#define MTK_WDMA_INT_MASK_RX_DELAY BIT(30)
++#define MTK_WDMA_INT_MASK_RX_COHERENT BIT(31)
++
++#define MTK_WDMA_INT_GRP1 0x250
++#define MTK_WDMA_INT_GRP2 0x254
++
++#define MTK_PCIE_MIRROR_MAP(n) ((n) ? 0x4 : 0x0)
++#define MTK_PCIE_MIRROR_MAP_EN BIT(0)
++#define MTK_PCIE_MIRROR_MAP_WED_ID BIT(1)
++
++/* DMA channel mapping */
++#define HIFSYS_DMA_AG_MAP 0x008
++
++#endif
+--- /dev/null
++++ b/include/linux/soc/mediatek/mtk_wed.h
+@@ -0,0 +1,131 @@
++#ifndef __MTK_WED_H
++#define __MTK_WED_H
++
++#include <linux/kernel.h>
++#include <linux/rcupdate.h>
++#include <linux/regmap.h>
++#include <linux/pci.h>
++
++#define MTK_WED_TX_QUEUES 2
++
++struct mtk_wed_hw;
++struct mtk_wdma_desc;
++
++struct mtk_wed_ring {
++ struct mtk_wdma_desc *desc;
++ dma_addr_t desc_phys;
++ int size;
++
++ u32 reg_base;
++ void __iomem *wpdma;
++};
++
++struct mtk_wed_device {
++#ifdef CONFIG_NET_MEDIATEK_SOC_WED
++ const struct mtk_wed_ops *ops;
++ struct device *dev;
++ struct mtk_wed_hw *hw;
++ bool init_done, running;
++ int wdma_idx;
++ int irq;
++
++ struct mtk_wed_ring tx_ring[MTK_WED_TX_QUEUES];
++ struct mtk_wed_ring txfree_ring;
++ struct mtk_wed_ring tx_wdma[MTK_WED_TX_QUEUES];
++
++ struct {
++ int size;
++ void **pages;
++ struct mtk_wdma_desc *desc;
++ dma_addr_t desc_phys;
++ } buf_ring;
++
++ /* filled by driver: */
++ struct {
++ struct pci_dev *pci_dev;
++
++ u32 wpdma_phys;
++
++ u16 token_start;
++ unsigned int nbuf;
++
++ u32 (*init_buf)(void *ptr, dma_addr_t phys, int token_id);
++ int (*offload_enable)(struct mtk_wed_device *wed);
++ void (*offload_disable)(struct mtk_wed_device *wed);
++ } wlan;
++#endif
++};
++
++struct mtk_wed_ops {
++ int (*attach)(struct mtk_wed_device *dev);
++ int (*tx_ring_setup)(struct mtk_wed_device *dev, int ring,
++ void __iomem *regs);
++ int (*txfree_ring_setup)(struct mtk_wed_device *dev,
++ void __iomem *regs);
++ void (*detach)(struct mtk_wed_device *dev);
++
++ void (*stop)(struct mtk_wed_device *dev);
++ void (*start)(struct mtk_wed_device *dev, u32 irq_mask);
++ void (*reset_dma)(struct mtk_wed_device *dev);
++
++ u32 (*reg_read)(struct mtk_wed_device *dev, u32 reg);
++ void (*reg_write)(struct mtk_wed_device *dev, u32 reg, u32 val);
++
++ u32 (*irq_get)(struct mtk_wed_device *dev, u32 mask);
++ void (*irq_set_mask)(struct mtk_wed_device *dev, u32 mask);
++};
++
++extern const struct mtk_wed_ops __rcu *mtk_soc_wed_ops;
++
++static inline int
++mtk_wed_device_attach(struct mtk_wed_device *dev)
++{
++ int ret = -ENODEV;
++
++#ifdef CONFIG_NET_MEDIATEK_SOC_WED
++ rcu_read_lock();
++ dev->ops = rcu_dereference(mtk_soc_wed_ops);
++ if (dev->ops)
++ ret = dev->ops->attach(dev);
++ else
++ rcu_read_unlock();
++
++ if (ret)
++ dev->ops = NULL;
++#endif
++
++ return ret;
++}
++
++#ifdef CONFIG_NET_MEDIATEK_SOC_WED
++#define mtk_wed_device_active(_dev) !!(_dev)->ops
++#define mtk_wed_device_detach(_dev) (_dev)->ops->detach(_dev)
++#define mtk_wed_device_start(_dev, _mask) (_dev)->ops->start(_dev, _mask)
++#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs) \
++ (_dev)->ops->tx_ring_setup(_dev, _ring, _regs)
++#define mtk_wed_device_txfree_ring_setup(_dev, _regs) \
++ (_dev)->ops->txfree_ring_setup(_dev, _regs)
++#define mtk_wed_device_reg_read(_dev, _reg) \
++ (_dev)->ops->reg_read(_dev, _reg)
++#define mtk_wed_device_reg_write(_dev, _reg, _val) \
++ (_dev)->ops->reg_write(_dev, _reg, _val)
++#define mtk_wed_device_irq_get(_dev, _mask) \
++ (_dev)->ops->irq_get(_dev, _mask)
++#define mtk_wed_device_irq_set_mask(_dev, _mask) \
++ (_dev)->ops->irq_set_mask(_dev, _mask)
++#else
++static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
++{
++ return false;
++}
++#define mtk_wed_device_detach(_dev) do {} while (0)
++#define mtk_wed_device_start(_dev, _mask) do {} while (0)
++#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs) -ENODEV
++#define mtk_wed_device_txfree_ring_setup(_dev, _ring, _regs) -ENODEV
++#define mtk_wed_device_reg_read(_dev, _reg) 0
++#define mtk_wed_device_reg_write(_dev, _reg, _val) do {} while (0)
++#define mtk_wed_device_irq_get(_dev, _mask) 0
++#define mtk_wed_device_irq_set_mask(_dev, _mask) do {} while (0)
++#endif
++
++#endif
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 5 Feb 2022 18:29:22 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: implement flow offloading
+ to WED devices
+
+This allows hardware flow offloading from Ethernet to WLAN on MT7622 SoC
+
+Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
+Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -329,6 +329,24 @@ int mtk_foe_entry_set_pppoe(struct mtk_f
+ return 0;
+ }
+
++int mtk_foe_entry_set_wdma(struct mtk_foe_entry *entry, int wdma_idx, int txq,
++ int bss, int wcid)
++{
++ struct mtk_foe_mac_info *l2 = mtk_foe_entry_l2(entry);
++ u32 *ib2 = mtk_foe_entry_ib2(entry);
++
++ *ib2 &= ~MTK_FOE_IB2_PORT_MG;
++ *ib2 |= MTK_FOE_IB2_WDMA_WINFO;
++ if (wdma_idx)
++ *ib2 |= MTK_FOE_IB2_WDMA_DEVIDX;
++
++ l2->vlan2 = FIELD_PREP(MTK_FOE_VLAN2_WINFO_BSS, bss) |
++ FIELD_PREP(MTK_FOE_VLAN2_WINFO_WCID, wcid) |
++ FIELD_PREP(MTK_FOE_VLAN2_WINFO_RING, txq);
++
++ return 0;
++}
++
+ static inline bool mtk_foe_entry_usable(struct mtk_foe_entry *entry)
+ {
+ return !(entry->ib1 & MTK_FOE_IB1_STATIC) &&
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
+@@ -48,9 +48,9 @@ enum {
+ #define MTK_FOE_IB2_DEST_PORT GENMASK(7, 5)
+ #define MTK_FOE_IB2_MULTICAST BIT(8)
+
+-#define MTK_FOE_IB2_WHNAT_QID2 GENMASK(13, 12)
+-#define MTK_FOE_IB2_WHNAT_DEVIDX BIT(16)
+-#define MTK_FOE_IB2_WHNAT_NAT BIT(17)
++#define MTK_FOE_IB2_WDMA_QID2 GENMASK(13, 12)
++#define MTK_FOE_IB2_WDMA_DEVIDX BIT(16)
++#define MTK_FOE_IB2_WDMA_WINFO BIT(17)
+
+ #define MTK_FOE_IB2_PORT_MG GENMASK(17, 12)
+
+@@ -58,9 +58,9 @@ enum {
+
+ #define MTK_FOE_IB2_DSCP GENMASK(31, 24)
+
+-#define MTK_FOE_VLAN2_WHNAT_BSS GEMMASK(5, 0)
+-#define MTK_FOE_VLAN2_WHNAT_WCID GENMASK(13, 6)
+-#define MTK_FOE_VLAN2_WHNAT_RING GENMASK(15, 14)
++#define MTK_FOE_VLAN2_WINFO_BSS GENMASK(5, 0)
++#define MTK_FOE_VLAN2_WINFO_WCID GENMASK(13, 6)
++#define MTK_FOE_VLAN2_WINFO_RING GENMASK(15, 14)
+
+ enum {
+ MTK_FOE_STATE_INVALID,
+@@ -281,6 +281,8 @@ int mtk_foe_entry_set_ipv6_tuple(struct
+ int mtk_foe_entry_set_dsa(struct mtk_foe_entry *entry, int port);
+ int mtk_foe_entry_set_vlan(struct mtk_foe_entry *entry, int vid);
+ int mtk_foe_entry_set_pppoe(struct mtk_foe_entry *entry, int sid);
++int mtk_foe_entry_set_wdma(struct mtk_foe_entry *entry, int wdma_idx, int txq,
++ int bss, int wcid);
+ int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
+ u16 timestamp);
+ int mtk_ppe_debugfs_init(struct mtk_ppe *ppe);
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -10,6 +10,7 @@
+ #include <net/pkt_cls.h>
+ #include <net/dsa.h>
+ #include "mtk_eth_soc.h"
++#include "mtk_wed.h"
+
+ struct mtk_flow_data {
+ struct ethhdr eth;
+@@ -39,6 +40,7 @@ struct mtk_flow_entry {
+ struct rhash_head node;
+ unsigned long cookie;
+ u16 hash;
++ s8 wed_index;
+ };
+
+ static const struct rhashtable_params mtk_flow_ht_params = {
+@@ -80,6 +82,35 @@ mtk_flow_offload_mangle_eth(const struct
+ memcpy(dest, src, act->mangle.mask ? 2 : 4);
+ }
+
++static int
++mtk_flow_get_wdma_info(struct net_device *dev, const u8 *addr, struct mtk_wdma_info *info)
++{
++ struct net_device_path_ctx ctx = {
++ .dev = dev,
++ .daddr = addr,
++ };
++ struct net_device_path path = {};
++
++ if (!IS_ENABLED(CONFIG_NET_MEDIATEK_SOC_WED))
++ return -1;
++
++ if (!dev->netdev_ops->ndo_fill_forward_path)
++ return -1;
++
++ if (dev->netdev_ops->ndo_fill_forward_path(&ctx, &path))
++ return -1;
++
++ if (path.type != DEV_PATH_MTK_WDMA)
++ return -1;
++
++ info->wdma_idx = path.mtk_wdma.wdma_idx;
++ info->queue = path.mtk_wdma.queue;
++ info->bss = path.mtk_wdma.bss;
++ info->wcid = path.mtk_wdma.wcid;
++
++ return 0;
++}
++
+
+ static int
+ mtk_flow_mangle_ports(const struct flow_action_entry *act,
+@@ -149,10 +180,20 @@ mtk_flow_get_dsa_port(struct net_device
+
+ static int
+ mtk_flow_set_output_device(struct mtk_eth *eth, struct mtk_foe_entry *foe,
+- struct net_device *dev)
++ struct net_device *dev, const u8 *dest_mac,
++ int *wed_index)
+ {
++ struct mtk_wdma_info info = {};
+ int pse_port, dsa_port;
+
++ if (mtk_flow_get_wdma_info(dev, dest_mac, &info) == 0) {
++ mtk_foe_entry_set_wdma(foe, info.wdma_idx, info.queue, info.bss,
++ info.wcid);
++ pse_port = 3;
++ *wed_index = info.wdma_idx;
++ goto out;
++ }
++
+ dsa_port = mtk_flow_get_dsa_port(&dev);
+ if (dsa_port >= 0)
+ mtk_foe_entry_set_dsa(foe, dsa_port);
+@@ -164,6 +205,7 @@ mtk_flow_set_output_device(struct mtk_et
+ else
+ return -EOPNOTSUPP;
+
++out:
+ mtk_foe_entry_set_pse_port(foe, pse_port);
+
+ return 0;
+@@ -179,6 +221,7 @@ mtk_flow_offload_replace(struct mtk_eth
+ struct net_device *odev = NULL;
+ struct mtk_flow_entry *entry;
+ int offload_type = 0;
++ int wed_index = -1;
+ u16 addr_type = 0;
+ u32 timestamp;
+ u8 l4proto = 0;
+@@ -329,10 +372,14 @@ mtk_flow_offload_replace(struct mtk_eth
+ if (data.pppoe.num == 1)
+ mtk_foe_entry_set_pppoe(&foe, data.pppoe.sid);
+
+- err = mtk_flow_set_output_device(eth, &foe, odev);
++ err = mtk_flow_set_output_device(eth, &foe, odev, data.eth.h_dest,
++ &wed_index);
+ if (err)
+ return err;
+
++ if (wed_index >= 0 && (err = mtk_wed_flow_add(wed_index)) < 0)
++ return err;
++
+ entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+@@ -346,6 +393,7 @@ mtk_flow_offload_replace(struct mtk_eth
+ }
+
+ entry->hash = hash;
++ entry->wed_index = wed_index;
+ err = rhashtable_insert_fast(ð->flow_table, &entry->node,
+ mtk_flow_ht_params);
+ if (err < 0)
+@@ -356,6 +404,8 @@ clear_flow:
+ mtk_foe_entry_clear(ð->ppe, hash);
+ free:
+ kfree(entry);
++ if (wed_index >= 0)
++ mtk_wed_flow_remove(wed_index);
+ return err;
+ }
+
+@@ -372,6 +422,8 @@ mtk_flow_offload_destroy(struct mtk_eth
+ mtk_foe_entry_clear(ð->ppe, entry->hash);
+ rhashtable_remove_fast(ð->flow_table, &entry->node,
+ mtk_flow_ht_params);
++ if (entry->wed_index >= 0)
++ mtk_wed_flow_remove(entry->wed_index);
+ kfree(entry);
+
+ return 0;
+--- a/drivers/net/ethernet/mediatek/mtk_wed.h
++++ b/drivers/net/ethernet/mediatek/mtk_wed.h
+@@ -7,6 +7,7 @@
+ #include <linux/soc/mediatek/mtk_wed.h>
+ #include <linux/debugfs.h>
+ #include <linux/regmap.h>
++#include <linux/netdevice.h>
+
+ struct mtk_eth;
+
+@@ -27,6 +28,12 @@ struct mtk_wed_hw {
+ int index;
+ };
+
++struct mtk_wdma_info {
++ u8 wdma_idx;
++ u8 queue;
++ u16 wcid;
++ u8 bss;
++};
+
+ #ifdef CONFIG_NET_MEDIATEK_SOC_WED
+ static inline void
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -849,6 +849,7 @@ enum net_device_path_type {
+ DEV_PATH_BRIDGE,
+ DEV_PATH_PPPOE,
+ DEV_PATH_DSA,
++ DEV_PATH_MTK_WDMA,
+ };
+
+ struct net_device_path {
+@@ -874,6 +875,12 @@ struct net_device_path {
+ int port;
+ u16 proto;
+ } dsa;
++ struct {
++ u8 wdma_idx;
++ u8 queue;
++ u16 wcid;
++ u8 bss;
++ } mtk_wdma;
+ };
+ };
+
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -761,6 +761,10 @@ int dev_fill_forward_path(const struct n
+ if (WARN_ON_ONCE(last_dev == ctx.dev))
+ return -1;
+ }
++
++ if (!ctx.dev)
++ return ret;
++
+ path = dev_fwd_path(stack);
+ if (!path)
+ return -1;
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sat, 5 Feb 2022 18:36:36 +0100
+Subject: [PATCH] arm64: dts: mediatek: mt7622: introduce nodes for
+ Wireless Ethernet Dispatch
+
+Introduce wed0 and wed1 nodes in order to enable offloading forwarding
+between ethernet and wireless devices on the mt7622 chipset.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
++++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+@@ -893,6 +893,11 @@
+ };
+ };
+
++ hifsys: syscon@1af00000 {
++ compatible = "mediatek,mt7622-hifsys", "syscon";
++ reg = <0 0x1af00000 0 0x70>;
++ };
++
+ ethsys: syscon@1b000000 {
+ compatible = "mediatek,mt7622-ethsys",
+ "syscon";
+@@ -911,6 +916,26 @@
+ #dma-cells = <1>;
+ };
+
++ pcie_mirror: pcie-mirror@10000400 {
++ compatible = "mediatek,mt7622-pcie-mirror",
++ "syscon";
++ reg = <0 0x10000400 0 0x10>;
++ };
++
++ wed0: wed@1020a000 {
++ compatible = "mediatek,mt7622-wed",
++ "syscon";
++ reg = <0 0x1020a000 0 0x1000>;
++ interrupts = <GIC_SPI 214 IRQ_TYPE_LEVEL_LOW>;
++ };
++
++ wed1: wed@1020b000 {
++ compatible = "mediatek,mt7622-wed",
++ "syscon";
++ reg = <0 0x1020b000 0 0x1000>;
++ interrupts = <GIC_SPI 215 IRQ_TYPE_LEVEL_LOW>;
++ };
++
+ eth: ethernet@1b100000 {
+ compatible = "mediatek,mt7622-eth",
+ "mediatek,mt2701-eth",
+@@ -938,6 +963,9 @@
+ mediatek,ethsys = <ðsys>;
+ mediatek,sgmiisys = <&sgmiisys>;
+ mediatek,cci-control = <&cci_control2>;
++ mediatek,wed = <&wed0>, <&wed1>;
++ mediatek,pcie-mirror = <&pcie_mirror>;
++ mediatek,hifsys = <&hifsys>;
+ dma-coherent;
+ #address-cells = <1>;
+ #size-cells = <0>;
--- /dev/null
+From: David Bentham <db260179@gmail.com>
+Date: Mon, 21 Feb 2022 15:36:16 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: add ipv6 flow offload
+ support
+
+Add the missing IPv6 flow offloading support for routing only.
+Hardware flow offloading is done by the packet processing engine (PPE)
+of the Ethernet MAC and as it doesn't support mangling of IPv6 packets,
+IPv6 NAT cannot be supported.
+
+Signed-off-by: David Bentham <db260179@gmail.com>
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -6,6 +6,7 @@
+ #include <linux/if_ether.h>
+ #include <linux/rhashtable.h>
+ #include <linux/ip.h>
++#include <linux/ipv6.h>
+ #include <net/flow_offload.h>
+ #include <net/pkt_cls.h>
+ #include <net/dsa.h>
+@@ -20,6 +21,11 @@ struct mtk_flow_data {
+ __be32 src_addr;
+ __be32 dst_addr;
+ } v4;
++
++ struct {
++ struct in6_addr src_addr;
++ struct in6_addr dst_addr;
++ } v6;
+ };
+
+ __be16 src_port;
+@@ -65,6 +71,14 @@ mtk_flow_set_ipv4_addr(struct mtk_foe_en
+ data->v4.dst_addr, data->dst_port);
+ }
+
++static int
++mtk_flow_set_ipv6_addr(struct mtk_foe_entry *foe, struct mtk_flow_data *data)
++{
++ return mtk_foe_entry_set_ipv6_tuple(foe,
++ data->v6.src_addr.s6_addr32, data->src_port,
++ data->v6.dst_addr.s6_addr32, data->dst_port);
++}
++
+ static void
+ mtk_flow_offload_mangle_eth(const struct flow_action_entry *act, void *eth)
+ {
+@@ -299,6 +313,9 @@ mtk_flow_offload_replace(struct mtk_eth
+ case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
+ offload_type = MTK_PPE_PKT_TYPE_IPV4_HNAPT;
+ break;
++ case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
++ offload_type = MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T;
++ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+@@ -334,6 +351,17 @@ mtk_flow_offload_replace(struct mtk_eth
+ mtk_flow_set_ipv4_addr(&foe, &data, false);
+ }
+
++ if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
++ struct flow_match_ipv6_addrs addrs;
++
++ flow_rule_match_ipv6_addrs(rule, &addrs);
++
++ data.v6.src_addr = addrs.key->src;
++ data.v6.dst_addr = addrs.key->dst;
++
++ mtk_flow_set_ipv6_addr(&foe, &data);
++ }
++
+ flow_action_for_each(i, act, &rule->action) {
+ if (act->id != FLOW_ACTION_MANGLE)
+ continue;
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 21 Feb 2022 15:37:21 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: support TC_SETUP_BLOCK for
+ PPE offload
+
+This allows offload entries to be created from user space
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -566,10 +566,13 @@ mtk_eth_setup_tc_block(struct net_device
+ int mtk_eth_setup_tc(struct net_device *dev, enum tc_setup_type type,
+ void *type_data)
+ {
+- if (type == TC_SETUP_FT)
++ switch (type) {
++ case TC_SETUP_BLOCK:
++ case TC_SETUP_FT:
+ return mtk_eth_setup_tc_block(dev, type_data);
+-
+- return -EOPNOTSUPP;
++ default:
++ return -EOPNOTSUPP;
++ }
+ }
+
+ int mtk_eth_offload_init(struct mtk_eth *eth)
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 21 Feb 2022 15:38:20 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: allocate struct mtk_ppe
+ separately
+
+Preparation for adding more data to it, which will increase its size.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -2312,7 +2312,7 @@ static int mtk_open(struct net_device *d
+ if (err)
+ return err;
+
+- if (eth->soc->offload_version && mtk_ppe_start(ð->ppe) == 0)
++ if (eth->soc->offload_version && mtk_ppe_start(eth->ppe) == 0)
+ gdm_config = MTK_GDMA_TO_PPE;
+
+ mtk_gdm_config(eth, gdm_config);
+@@ -2386,7 +2386,7 @@ static int mtk_stop(struct net_device *d
+ mtk_dma_free(eth);
+
+ if (eth->soc->offload_version)
+- mtk_ppe_stop(ð->ppe);
++ mtk_ppe_stop(eth->ppe);
+
+ return 0;
+ }
+@@ -3278,10 +3278,11 @@ static int mtk_probe(struct platform_dev
+ }
+
+ if (eth->soc->offload_version) {
+- err = mtk_ppe_init(ð->ppe, eth->dev,
+- eth->base + MTK_ETH_PPE_BASE, 2);
+- if (err)
++ eth->ppe = mtk_ppe_init(eth->dev, eth->base + MTK_ETH_PPE_BASE, 2);
++ if (!eth->ppe) {
++ err = -ENOMEM;
+ goto err_free_dev;
++ }
+
+ err = mtk_eth_offload_init(eth);
+ if (err)
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+@@ -982,7 +982,7 @@ struct mtk_eth {
+ u32 rx_dma_l4_valid;
+ int ip_align;
+
+- struct mtk_ppe ppe;
++ struct mtk_ppe *ppe;
+ struct rhashtable flow_table;
+ };
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -384,10 +384,15 @@ int mtk_foe_entry_commit(struct mtk_ppe
+ return hash;
+ }
+
+-int mtk_ppe_init(struct mtk_ppe *ppe, struct device *dev, void __iomem *base,
++struct mtk_ppe *mtk_ppe_init(struct device *dev, void __iomem *base,
+ int version)
+ {
+ struct mtk_foe_entry *foe;
++ struct mtk_ppe *ppe;
++
++ ppe = devm_kzalloc(dev, sizeof(*ppe), GFP_KERNEL);
++ if (!ppe)
++ return NULL;
+
+ /* need to allocate a separate device, since it PPE DMA access is
+ * not coherent.
+@@ -399,13 +404,13 @@ int mtk_ppe_init(struct mtk_ppe *ppe, st
+ foe = dmam_alloc_coherent(ppe->dev, MTK_PPE_ENTRIES * sizeof(*foe),
+ &ppe->foe_phys, GFP_KERNEL);
+ if (!foe)
+- return -ENOMEM;
++ return NULL;
+
+ ppe->foe_table = foe;
+
+ mtk_ppe_debugfs_init(ppe);
+
+- return 0;
++ return ppe;
+ }
+
+ static void mtk_ppe_init_foe_table(struct mtk_ppe *ppe)
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
+@@ -246,8 +246,7 @@ struct mtk_ppe {
+ void *acct_table;
+ };
+
+-int mtk_ppe_init(struct mtk_ppe *ppe, struct device *dev, void __iomem *base,
+- int version);
++struct mtk_ppe *mtk_ppe_init(struct device *dev, void __iomem *base, int version);
+ int mtk_ppe_start(struct mtk_ppe *ppe);
+ int mtk_ppe_stop(struct mtk_ppe *ppe);
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -414,7 +414,7 @@ mtk_flow_offload_replace(struct mtk_eth
+
+ entry->cookie = f->cookie;
+ timestamp = mtk_eth_timestamp(eth);
+- hash = mtk_foe_entry_commit(ð->ppe, &foe, timestamp);
++ hash = mtk_foe_entry_commit(eth->ppe, &foe, timestamp);
+ if (hash < 0) {
+ err = hash;
+ goto free;
+@@ -429,7 +429,7 @@ mtk_flow_offload_replace(struct mtk_eth
+
+ return 0;
+ clear_flow:
+- mtk_foe_entry_clear(ð->ppe, hash);
++ mtk_foe_entry_clear(eth->ppe, hash);
+ free:
+ kfree(entry);
+ if (wed_index >= 0)
+@@ -447,7 +447,7 @@ mtk_flow_offload_destroy(struct mtk_eth
+ if (!entry)
+ return -ENOENT;
+
+- mtk_foe_entry_clear(ð->ppe, entry->hash);
++ mtk_foe_entry_clear(eth->ppe, entry->hash);
+ rhashtable_remove_fast(ð->flow_table, &entry->node,
+ mtk_flow_ht_params);
+ if (entry->wed_index >= 0)
+@@ -469,7 +469,7 @@ mtk_flow_offload_stats(struct mtk_eth *e
+ if (!entry)
+ return -ENOENT;
+
+- timestamp = mtk_foe_entry_timestamp(ð->ppe, entry->hash);
++ timestamp = mtk_foe_entry_timestamp(eth->ppe, entry->hash);
+ if (timestamp < 0)
+ return -ETIMEDOUT;
+
+@@ -525,7 +525,7 @@ mtk_eth_setup_tc_block(struct net_device
+ struct flow_block_cb *block_cb;
+ flow_setup_cb_t *cb;
+
+- if (!eth->ppe.foe_table)
++ if (!eth->ppe || !eth->ppe->foe_table)
+ return -EOPNOTSUPP;
+
+ if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
+@@ -577,7 +577,7 @@ int mtk_eth_setup_tc(struct net_device *
+
+ int mtk_eth_offload_init(struct mtk_eth *eth)
+ {
+- if (!eth->ppe.foe_table)
++ if (!eth->ppe || !eth->ppe->foe_table)
+ return 0;
+
+ return rhashtable_init(ð->flow_table, &mtk_flow_ht_params);
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 21 Feb 2022 15:39:18 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: rework hardware flow table
+ management
+
+The hardware was designed to handle flow detection and creation of flow entries
+by itself, relying on the software primarily for filling in egress routing
+information.
+When there is a hash collision between multiple flows, this allows the hardware
+to maintain the entry for the most active flow.
+Additionally, the hardware only keeps offloading active for entries with at
+least 30 packets per second.
+
+With this rework, the code no longer creates a hardware entries directly.
+Instead, the hardware entry is only created when the PPE reports a matching
+unbound flow with the minimum target rate.
+In order to reduce CPU overhead, looking for flows belonging to a hash entry
+is rate limited to once every 100ms.
+
+This rework is also used as preparation for emulating bridge offload by
+managing L4 offload entries on demand.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -21,6 +21,7 @@
+ #include <linux/pinctrl/devinfo.h>
+ #include <linux/phylink.h>
+ #include <linux/jhash.h>
++#include <linux/bitfield.h>
+ #include <net/dsa.h>
+
+ #include "mtk_eth_soc.h"
+@@ -1281,7 +1282,7 @@ static int mtk_poll_rx(struct napi_struc
+ struct net_device *netdev;
+ unsigned int pktlen;
+ dma_addr_t dma_addr;
+- u32 hash;
++ u32 hash, reason;
+ int mac;
+
+ ring = mtk_get_rx_ring(eth);
+@@ -1357,6 +1358,11 @@ static int mtk_poll_rx(struct napi_struc
+ skb_set_hash(skb, hash, PKT_HASH_TYPE_L4);
+ }
+
++ reason = FIELD_GET(MTK_RXD4_PPE_CPU_REASON, trxd.rxd4);
++ if (reason == MTK_PPE_CPU_REASON_HIT_UNBIND_RATE_REACHED)
++ mtk_ppe_check_skb(eth->ppe, skb,
++ trxd.rxd4 & MTK_RXD4_FOE_ENTRY);
++
+ if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX &&
+ (trxd.rxd2 & RX_DMA_VTAG))
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
+@@ -3278,7 +3284,7 @@ static int mtk_probe(struct platform_dev
+ }
+
+ if (eth->soc->offload_version) {
+- eth->ppe = mtk_ppe_init(eth->dev, eth->base + MTK_ETH_PPE_BASE, 2);
++ eth->ppe = mtk_ppe_init(eth, eth->base + MTK_ETH_PPE_BASE, 2);
+ if (!eth->ppe) {
+ err = -ENOMEM;
+ goto err_free_dev;
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -6,9 +6,12 @@
+ #include <linux/iopoll.h>
+ #include <linux/etherdevice.h>
+ #include <linux/platform_device.h>
++#include "mtk_eth_soc.h"
+ #include "mtk_ppe.h"
+ #include "mtk_ppe_regs.h"
+
++static DEFINE_SPINLOCK(ppe_lock);
++
+ static void ppe_w32(struct mtk_ppe *ppe, u32 reg, u32 val)
+ {
+ writel(val, ppe->base + reg);
+@@ -41,6 +44,11 @@ static u32 ppe_clear(struct mtk_ppe *ppe
+ return ppe_m32(ppe, reg, val, 0);
+ }
+
++static u32 mtk_eth_timestamp(struct mtk_eth *eth)
++{
++ return mtk_r32(eth, 0x0010) & MTK_FOE_IB1_BIND_TIMESTAMP;
++}
++
+ static int mtk_ppe_wait_busy(struct mtk_ppe *ppe)
+ {
+ int ret;
+@@ -353,26 +361,59 @@ static inline bool mtk_foe_entry_usable(
+ FIELD_GET(MTK_FOE_IB1_STATE, entry->ib1) != MTK_FOE_STATE_BIND;
+ }
+
+-int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
+- u16 timestamp)
++static bool
++mtk_flow_entry_match(struct mtk_flow_entry *entry, struct mtk_foe_entry *data)
++{
++ int type, len;
++
++ if ((data->ib1 ^ entry->data.ib1) & MTK_FOE_IB1_UDP)
++ return false;
++
++ type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->data.ib1);
++ if (type > MTK_PPE_PKT_TYPE_IPV4_DSLITE)
++ len = offsetof(struct mtk_foe_entry, ipv6._rsv);
++ else
++ len = offsetof(struct mtk_foe_entry, ipv4.ib2);
++
++ return !memcmp(&entry->data.data, &data->data, len - 4);
++}
++
++static void
++mtk_flow_entry_update(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
+ {
+ struct mtk_foe_entry *hwe;
+- u32 hash;
++ struct mtk_foe_entry foe;
+
++ spin_lock_bh(&ppe_lock);
++ if (entry->hash == 0xffff)
++ goto out;
++
++ hwe = &ppe->foe_table[entry->hash];
++ memcpy(&foe, hwe, sizeof(foe));
++ if (!mtk_flow_entry_match(entry, &foe)) {
++ entry->hash = 0xffff;
++ goto out;
++ }
++
++ entry->data.ib1 = foe.ib1;
++
++out:
++ spin_unlock_bh(&ppe_lock);
++}
++
++static void
++__mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
++ u16 hash)
++{
++ struct mtk_foe_entry *hwe;
++ u16 timestamp;
++
++ timestamp = mtk_eth_timestamp(ppe->eth);
+ timestamp &= MTK_FOE_IB1_BIND_TIMESTAMP;
+ entry->ib1 &= ~MTK_FOE_IB1_BIND_TIMESTAMP;
+ entry->ib1 |= FIELD_PREP(MTK_FOE_IB1_BIND_TIMESTAMP, timestamp);
+
+- hash = mtk_ppe_hash_entry(entry);
+ hwe = &ppe->foe_table[hash];
+- if (!mtk_foe_entry_usable(hwe)) {
+- hwe++;
+- hash++;
+-
+- if (!mtk_foe_entry_usable(hwe))
+- return -ENOSPC;
+- }
+-
+ memcpy(&hwe->data, &entry->data, sizeof(hwe->data));
+ wmb();
+ hwe->ib1 = entry->ib1;
+@@ -380,13 +421,77 @@ int mtk_foe_entry_commit(struct mtk_ppe
+ dma_wmb();
+
+ mtk_ppe_cache_clear(ppe);
++}
+
+- return hash;
++void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ spin_lock_bh(&ppe_lock);
++ hlist_del_init(&entry->list);
++ if (entry->hash != 0xffff) {
++ ppe->foe_table[entry->hash].ib1 &= ~MTK_FOE_IB1_STATE;
++ ppe->foe_table[entry->hash].ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE,
++ MTK_FOE_STATE_BIND);
++ dma_wmb();
++ }
++ entry->hash = 0xffff;
++ spin_unlock_bh(&ppe_lock);
++}
++
++int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ u32 hash = mtk_ppe_hash_entry(&entry->data);
++
++ entry->hash = 0xffff;
++ spin_lock_bh(&ppe_lock);
++ hlist_add_head(&entry->list, &ppe->foe_flow[hash / 2]);
++ spin_unlock_bh(&ppe_lock);
++
++ return 0;
++}
++
++void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash)
++{
++ struct hlist_head *head = &ppe->foe_flow[hash / 2];
++ struct mtk_flow_entry *entry;
++ struct mtk_foe_entry *hwe = &ppe->foe_table[hash];
++ bool found = false;
++
++ if (hlist_empty(head))
++ return;
++
++ spin_lock_bh(&ppe_lock);
++ hlist_for_each_entry(entry, head, list) {
++ if (found || !mtk_flow_entry_match(entry, hwe)) {
++ if (entry->hash != 0xffff)
++ entry->hash = 0xffff;
++ continue;
++ }
++
++ entry->hash = hash;
++ __mtk_foe_entry_commit(ppe, &entry->data, hash);
++ found = true;
++ }
++ spin_unlock_bh(&ppe_lock);
++}
++
++int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ u16 now = mtk_eth_timestamp(ppe->eth) & MTK_FOE_IB1_BIND_TIMESTAMP;
++ u16 timestamp;
++
++ mtk_flow_entry_update(ppe, entry);
++ timestamp = entry->data.ib1 & MTK_FOE_IB1_BIND_TIMESTAMP;
++
++ if (timestamp > now)
++ return MTK_FOE_IB1_BIND_TIMESTAMP + 1 - timestamp + now;
++ else
++ return now - timestamp;
+ }
+
+-struct mtk_ppe *mtk_ppe_init(struct device *dev, void __iomem *base,
++struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
+ int version)
+ {
++ struct device *dev = eth->dev;
+ struct mtk_foe_entry *foe;
+ struct mtk_ppe *ppe;
+
+@@ -398,6 +503,7 @@ struct mtk_ppe *mtk_ppe_init(struct devi
+ * not coherent.
+ */
+ ppe->base = base;
++ ppe->eth = eth;
+ ppe->dev = dev;
+ ppe->version = version;
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
+@@ -235,7 +235,17 @@ enum {
+ MTK_PPE_CPU_REASON_INVALID = 0x1f,
+ };
+
++struct mtk_flow_entry {
++ struct rhash_head node;
++ struct hlist_node list;
++ unsigned long cookie;
++ struct mtk_foe_entry data;
++ u16 hash;
++ s8 wed_index;
++};
++
+ struct mtk_ppe {
++ struct mtk_eth *eth;
+ struct device *dev;
+ void __iomem *base;
+ int version;
+@@ -243,18 +253,33 @@ struct mtk_ppe {
+ struct mtk_foe_entry *foe_table;
+ dma_addr_t foe_phys;
+
++ u16 foe_check_time[MTK_PPE_ENTRIES];
++ struct hlist_head foe_flow[MTK_PPE_ENTRIES / 2];
++
+ void *acct_table;
+ };
+
+-struct mtk_ppe *mtk_ppe_init(struct device *dev, void __iomem *base, int version);
++struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base, int version);
+ int mtk_ppe_start(struct mtk_ppe *ppe);
+ int mtk_ppe_stop(struct mtk_ppe *ppe);
+
++void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash);
++
+ static inline void
+-mtk_foe_entry_clear(struct mtk_ppe *ppe, u16 hash)
++mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash)
+ {
+- ppe->foe_table[hash].ib1 = 0;
+- dma_wmb();
++ u16 now, diff;
++
++ if (!ppe)
++ return;
++
++ now = (u16)jiffies;
++ diff = now - ppe->foe_check_time[hash];
++ if (diff < HZ / 10)
++ return;
++
++ ppe->foe_check_time[hash] = now;
++ __mtk_ppe_check_skb(ppe, skb, hash);
+ }
+
+ static inline int
+@@ -282,8 +307,9 @@ int mtk_foe_entry_set_vlan(struct mtk_fo
+ int mtk_foe_entry_set_pppoe(struct mtk_foe_entry *entry, int sid);
+ int mtk_foe_entry_set_wdma(struct mtk_foe_entry *entry, int wdma_idx, int txq,
+ int bss, int wcid);
+-int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
+- u16 timestamp);
++int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
++void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
++int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
+ int mtk_ppe_debugfs_init(struct mtk_ppe *ppe);
+
+ #endif
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -42,13 +42,6 @@ struct mtk_flow_data {
+ } pppoe;
+ };
+
+-struct mtk_flow_entry {
+- struct rhash_head node;
+- unsigned long cookie;
+- u16 hash;
+- s8 wed_index;
+-};
+-
+ static const struct rhashtable_params mtk_flow_ht_params = {
+ .head_offset = offsetof(struct mtk_flow_entry, node),
+ .key_offset = offsetof(struct mtk_flow_entry, cookie),
+@@ -56,12 +49,6 @@ static const struct rhashtable_params mt
+ .automatic_shrinking = true,
+ };
+
+-static u32
+-mtk_eth_timestamp(struct mtk_eth *eth)
+-{
+- return mtk_r32(eth, 0x0010) & MTK_FOE_IB1_BIND_TIMESTAMP;
+-}
+-
+ static int
+ mtk_flow_set_ipv4_addr(struct mtk_foe_entry *foe, struct mtk_flow_data *data,
+ bool egress)
+@@ -237,10 +224,8 @@ mtk_flow_offload_replace(struct mtk_eth
+ int offload_type = 0;
+ int wed_index = -1;
+ u16 addr_type = 0;
+- u32 timestamp;
+ u8 l4proto = 0;
+ int err = 0;
+- int hash;
+ int i;
+
+ if (rhashtable_lookup(ð->flow_table, &f->cookie, mtk_flow_ht_params))
+@@ -413,23 +398,21 @@ mtk_flow_offload_replace(struct mtk_eth
+ return -ENOMEM;
+
+ entry->cookie = f->cookie;
+- timestamp = mtk_eth_timestamp(eth);
+- hash = mtk_foe_entry_commit(eth->ppe, &foe, timestamp);
+- if (hash < 0) {
+- err = hash;
++ memcpy(&entry->data, &foe, sizeof(entry->data));
++ entry->wed_index = wed_index;
++
++ if (mtk_foe_entry_commit(eth->ppe, entry) < 0)
+ goto free;
+- }
+
+- entry->hash = hash;
+- entry->wed_index = wed_index;
+ err = rhashtable_insert_fast(ð->flow_table, &entry->node,
+ mtk_flow_ht_params);
+ if (err < 0)
+- goto clear_flow;
++ goto clear;
+
+ return 0;
+-clear_flow:
+- mtk_foe_entry_clear(eth->ppe, hash);
++
++clear:
++ mtk_foe_entry_clear(eth->ppe, entry);
+ free:
+ kfree(entry);
+ if (wed_index >= 0)
+@@ -447,7 +430,7 @@ mtk_flow_offload_destroy(struct mtk_eth
+ if (!entry)
+ return -ENOENT;
+
+- mtk_foe_entry_clear(eth->ppe, entry->hash);
++ mtk_foe_entry_clear(eth->ppe, entry);
+ rhashtable_remove_fast(ð->flow_table, &entry->node,
+ mtk_flow_ht_params);
+ if (entry->wed_index >= 0)
+@@ -461,7 +444,6 @@ static int
+ mtk_flow_offload_stats(struct mtk_eth *eth, struct flow_cls_offload *f)
+ {
+ struct mtk_flow_entry *entry;
+- int timestamp;
+ u32 idle;
+
+ entry = rhashtable_lookup(ð->flow_table, &f->cookie,
+@@ -469,11 +451,7 @@ mtk_flow_offload_stats(struct mtk_eth *e
+ if (!entry)
+ return -ENOENT;
+
+- timestamp = mtk_foe_entry_timestamp(eth->ppe, entry->hash);
+- if (timestamp < 0)
+- return -ETIMEDOUT;
+-
+- idle = mtk_eth_timestamp(eth) - timestamp;
++ idle = mtk_foe_entry_idle_time(eth->ppe, entry);
+ f->stats.lastused = jiffies - idle * HZ;
+
+ return 0;
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Mon, 21 Feb 2022 15:55:19 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: remove bridge flow offload
+ type entry support
+
+According to MediaTek, this feature is not supported in current hardware
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -84,13 +84,6 @@ static u32 mtk_ppe_hash_entry(struct mtk
+ u32 hash;
+
+ switch (FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, e->ib1)) {
+- case MTK_PPE_PKT_TYPE_BRIDGE:
+- hv1 = e->bridge.src_mac_lo;
+- hv1 ^= ((e->bridge.src_mac_hi & 0xffff) << 16);
+- hv2 = e->bridge.src_mac_hi >> 16;
+- hv2 ^= e->bridge.dest_mac_lo;
+- hv3 = e->bridge.dest_mac_hi;
+- break;
+ case MTK_PPE_PKT_TYPE_IPV4_ROUTE:
+ case MTK_PPE_PKT_TYPE_IPV4_HNAPT:
+ hv1 = e->ipv4.orig.ports;
+@@ -572,7 +565,6 @@ int mtk_ppe_start(struct mtk_ppe *ppe)
+ MTK_PPE_FLOW_CFG_IP4_NAT |
+ MTK_PPE_FLOW_CFG_IP4_NAPT |
+ MTK_PPE_FLOW_CFG_IP4_DSLITE |
+- MTK_PPE_FLOW_CFG_L2_BRIDGE |
+ MTK_PPE_FLOW_CFG_IP4_NAT_FRAG;
+ ppe_w32(ppe, MTK_PPE_FLOW_CFG, val);
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
+@@ -32,7 +32,6 @@ static const char *mtk_foe_pkt_type_str(
+ static const char * const type_str[] = {
+ [MTK_PPE_PKT_TYPE_IPV4_HNAPT] = "IPv4 5T",
+ [MTK_PPE_PKT_TYPE_IPV4_ROUTE] = "IPv4 3T",
+- [MTK_PPE_PKT_TYPE_BRIDGE] = "L2",
+ [MTK_PPE_PKT_TYPE_IPV4_DSLITE] = "DS-LITE",
+ [MTK_PPE_PKT_TYPE_IPV6_ROUTE_3T] = "IPv6 3T",
+ [MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T] = "IPv6 5T",
--- /dev/null
+From: Felix Fietkau <nbd@nbd.name>
+Date: Wed, 23 Feb 2022 10:56:34 +0100
+Subject: [PATCH] net: ethernet: mtk_eth_soc: support creating mac
+ address based offload entries
+
+This will be used to implement a limited form of bridge offloading.
+Since the hardware does not support flow table entries with just source
+and destination MAC address, the driver has to emulate it.
+
+The hardware automatically creates entries entries for incoming flows, even
+when they are bridged instead of routed, and reports when packets for these
+flows have reached the minimum PPS rate for offloading.
+
+After this happens, we look up the L2 flow offload entry based on the MAC
+header and fill in the output routing information in the flow table.
+The dynamically created per-flow entries are automatically removed when
+either the hardware flowtable entry expires, is replaced, or if the offload
+rule they belong to is removed
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
+@@ -6,12 +6,22 @@
+ #include <linux/iopoll.h>
+ #include <linux/etherdevice.h>
+ #include <linux/platform_device.h>
++#include <linux/if_ether.h>
++#include <linux/if_vlan.h>
++#include <net/dsa.h>
+ #include "mtk_eth_soc.h"
+ #include "mtk_ppe.h"
+ #include "mtk_ppe_regs.h"
+
+ static DEFINE_SPINLOCK(ppe_lock);
+
++static const struct rhashtable_params mtk_flow_l2_ht_params = {
++ .head_offset = offsetof(struct mtk_flow_entry, l2_node),
++ .key_offset = offsetof(struct mtk_flow_entry, data.bridge),
++ .key_len = offsetof(struct mtk_foe_bridge, key_end),
++ .automatic_shrinking = true,
++};
++
+ static void ppe_w32(struct mtk_ppe *ppe, u32 reg, u32 val)
+ {
+ writel(val, ppe->base + reg);
+@@ -123,6 +133,9 @@ mtk_foe_entry_l2(struct mtk_foe_entry *e
+ {
+ int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->ib1);
+
++ if (type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return &entry->bridge.l2;
++
+ if (type >= MTK_PPE_PKT_TYPE_IPV4_DSLITE)
+ return &entry->ipv6.l2;
+
+@@ -134,6 +147,9 @@ mtk_foe_entry_ib2(struct mtk_foe_entry *
+ {
+ int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->ib1);
+
++ if (type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return &entry->bridge.ib2;
++
+ if (type >= MTK_PPE_PKT_TYPE_IPV4_DSLITE)
+ return &entry->ipv6.ib2;
+
+@@ -168,7 +184,12 @@ int mtk_foe_entry_prepare(struct mtk_foe
+ if (type == MTK_PPE_PKT_TYPE_IPV6_ROUTE_3T)
+ entry->ipv6.ports = ports_pad;
+
+- if (type >= MTK_PPE_PKT_TYPE_IPV4_DSLITE) {
++ if (type == MTK_PPE_PKT_TYPE_BRIDGE) {
++ ether_addr_copy(entry->bridge.src_mac, src_mac);
++ ether_addr_copy(entry->bridge.dest_mac, dest_mac);
++ entry->bridge.ib2 = val;
++ l2 = &entry->bridge.l2;
++ } else if (type >= MTK_PPE_PKT_TYPE_IPV4_DSLITE) {
+ entry->ipv6.ib2 = val;
+ l2 = &entry->ipv6.l2;
+ } else {
+@@ -372,12 +393,96 @@ mtk_flow_entry_match(struct mtk_flow_ent
+ }
+
+ static void
++__mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ struct hlist_head *head;
++ struct hlist_node *tmp;
++
++ if (entry->type == MTK_FLOW_TYPE_L2) {
++ rhashtable_remove_fast(&ppe->l2_flows, &entry->l2_node,
++ mtk_flow_l2_ht_params);
++
++ head = &entry->l2_flows;
++ hlist_for_each_entry_safe(entry, tmp, head, l2_data.list)
++ __mtk_foe_entry_clear(ppe, entry);
++ return;
++ }
++
++ hlist_del_init(&entry->list);
++ if (entry->hash != 0xffff) {
++ ppe->foe_table[entry->hash].ib1 &= ~MTK_FOE_IB1_STATE;
++ ppe->foe_table[entry->hash].ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE,
++ MTK_FOE_STATE_BIND);
++ dma_wmb();
++ }
++ entry->hash = 0xffff;
++
++ if (entry->type != MTK_FLOW_TYPE_L2_SUBFLOW)
++ return;
++
++ hlist_del_init(&entry->l2_data.list);
++ kfree(entry);
++}
++
++static int __mtk_foe_entry_idle_time(struct mtk_ppe *ppe, u32 ib1)
++{
++ u16 timestamp;
++ u16 now;
++
++ now = mtk_eth_timestamp(ppe->eth) & MTK_FOE_IB1_BIND_TIMESTAMP;
++ timestamp = ib1 & MTK_FOE_IB1_BIND_TIMESTAMP;
++
++ if (timestamp > now)
++ return MTK_FOE_IB1_BIND_TIMESTAMP + 1 - timestamp + now;
++ else
++ return now - timestamp;
++}
++
++static void
++mtk_flow_entry_update_l2(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ struct mtk_flow_entry *cur;
++ struct mtk_foe_entry *hwe;
++ struct hlist_node *tmp;
++ int idle;
++
++ idle = __mtk_foe_entry_idle_time(ppe, entry->data.ib1);
++ hlist_for_each_entry_safe(cur, tmp, &entry->l2_flows, l2_data.list) {
++ int cur_idle;
++ u32 ib1;
++
++ hwe = &ppe->foe_table[cur->hash];
++ ib1 = READ_ONCE(hwe->ib1);
++
++ if (FIELD_GET(MTK_FOE_IB1_STATE, ib1) != MTK_FOE_STATE_BIND) {
++ cur->hash = 0xffff;
++ __mtk_foe_entry_clear(ppe, cur);
++ continue;
++ }
++
++ cur_idle = __mtk_foe_entry_idle_time(ppe, ib1);
++ if (cur_idle >= idle)
++ continue;
++
++ idle = cur_idle;
++ entry->data.ib1 &= ~MTK_FOE_IB1_BIND_TIMESTAMP;
++ entry->data.ib1 |= hwe->ib1 & MTK_FOE_IB1_BIND_TIMESTAMP;
++ }
++}
++
++static void
+ mtk_flow_entry_update(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
+ {
+ struct mtk_foe_entry *hwe;
+ struct mtk_foe_entry foe;
+
+ spin_lock_bh(&ppe_lock);
++
++ if (entry->type == MTK_FLOW_TYPE_L2) {
++ mtk_flow_entry_update_l2(ppe, entry);
++ goto out;
++ }
++
+ if (entry->hash == 0xffff)
+ goto out;
+
+@@ -419,21 +524,28 @@ __mtk_foe_entry_commit(struct mtk_ppe *p
+ void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
+ {
+ spin_lock_bh(&ppe_lock);
+- hlist_del_init(&entry->list);
+- if (entry->hash != 0xffff) {
+- ppe->foe_table[entry->hash].ib1 &= ~MTK_FOE_IB1_STATE;
+- ppe->foe_table[entry->hash].ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE,
+- MTK_FOE_STATE_BIND);
+- dma_wmb();
+- }
+- entry->hash = 0xffff;
++ __mtk_foe_entry_clear(ppe, entry);
+ spin_unlock_bh(&ppe_lock);
+ }
+
++static int
++mtk_foe_entry_commit_l2(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
++{
++ entry->type = MTK_FLOW_TYPE_L2;
++
++ return rhashtable_insert_fast(&ppe->l2_flows, &entry->l2_node,
++ mtk_flow_l2_ht_params);
++}
++
+ int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
+ {
+- u32 hash = mtk_ppe_hash_entry(&entry->data);
++ int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->data.ib1);
++ u32 hash;
++
++ if (type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return mtk_foe_entry_commit_l2(ppe, entry);
+
++ hash = mtk_ppe_hash_entry(&entry->data);
+ entry->hash = 0xffff;
+ spin_lock_bh(&ppe_lock);
+ hlist_add_head(&entry->list, &ppe->foe_flow[hash / 2]);
+@@ -442,18 +554,72 @@ int mtk_foe_entry_commit(struct mtk_ppe
+ return 0;
+ }
+
++static void
++mtk_foe_entry_commit_subflow(struct mtk_ppe *ppe, struct mtk_flow_entry *entry,
++ u16 hash)
++{
++ struct mtk_flow_entry *flow_info;
++ struct mtk_foe_entry foe, *hwe;
++ struct mtk_foe_mac_info *l2;
++ u32 ib1_mask = MTK_FOE_IB1_PACKET_TYPE | MTK_FOE_IB1_UDP;
++ int type;
++
++ flow_info = kzalloc(offsetof(struct mtk_flow_entry, l2_data.end),
++ GFP_ATOMIC);
++ if (!flow_info)
++ return;
++
++ flow_info->l2_data.base_flow = entry;
++ flow_info->type = MTK_FLOW_TYPE_L2_SUBFLOW;
++ flow_info->hash = hash;
++ hlist_add_head(&flow_info->list, &ppe->foe_flow[hash / 2]);
++ hlist_add_head(&flow_info->l2_data.list, &entry->l2_flows);
++
++ hwe = &ppe->foe_table[hash];
++ memcpy(&foe, hwe, sizeof(foe));
++ foe.ib1 &= ib1_mask;
++ foe.ib1 |= entry->data.ib1 & ~ib1_mask;
++
++ l2 = mtk_foe_entry_l2(&foe);
++ memcpy(l2, &entry->data.bridge.l2, sizeof(*l2));
++
++ type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, foe.ib1);
++ if (type == MTK_PPE_PKT_TYPE_IPV4_HNAPT)
++ memcpy(&foe.ipv4.new, &foe.ipv4.orig, sizeof(foe.ipv4.new));
++ else if (type >= MTK_PPE_PKT_TYPE_IPV6_ROUTE_3T && l2->etype == ETH_P_IP)
++ l2->etype = ETH_P_IPV6;
++
++ *mtk_foe_entry_ib2(&foe) = entry->data.bridge.ib2;
++
++ __mtk_foe_entry_commit(ppe, &foe, hash);
++}
++
+ void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash)
+ {
+ struct hlist_head *head = &ppe->foe_flow[hash / 2];
+- struct mtk_flow_entry *entry;
+ struct mtk_foe_entry *hwe = &ppe->foe_table[hash];
++ struct mtk_flow_entry *entry;
++ struct mtk_foe_bridge key = {};
++ struct ethhdr *eh;
+ bool found = false;
+-
+- if (hlist_empty(head))
+- return;
++ u8 *tag;
+
+ spin_lock_bh(&ppe_lock);
++
++ if (FIELD_GET(MTK_FOE_IB1_STATE, hwe->ib1) == MTK_FOE_STATE_BIND)
++ goto out;
++
+ hlist_for_each_entry(entry, head, list) {
++ if (entry->type == MTK_FLOW_TYPE_L2_SUBFLOW) {
++ if (unlikely(FIELD_GET(MTK_FOE_IB1_STATE, hwe->ib1) ==
++ MTK_FOE_STATE_BIND))
++ continue;
++
++ entry->hash = 0xffff;
++ __mtk_foe_entry_clear(ppe, entry);
++ continue;
++ }
++
+ if (found || !mtk_flow_entry_match(entry, hwe)) {
+ if (entry->hash != 0xffff)
+ entry->hash = 0xffff;
+@@ -464,21 +630,50 @@ void __mtk_ppe_check_skb(struct mtk_ppe
+ __mtk_foe_entry_commit(ppe, &entry->data, hash);
+ found = true;
+ }
++
++ if (found)
++ goto out;
++
++ eh = eth_hdr(skb);
++ ether_addr_copy(key.dest_mac, eh->h_dest);
++ ether_addr_copy(key.src_mac, eh->h_source);
++ tag = skb->data - 2;
++ key.vlan = 0;
++ switch (skb->protocol) {
++#if IS_ENABLED(CONFIG_NET_DSA)
++ case htons(ETH_P_XDSA):
++ if (!netdev_uses_dsa(skb->dev) ||
++ skb->dev->dsa_ptr->tag_ops->proto != DSA_TAG_PROTO_MTK)
++ goto out;
++
++ tag += 4;
++ if (get_unaligned_be16(tag) != ETH_P_8021Q)
++ break;
++
++ fallthrough;
++#endif
++ case htons(ETH_P_8021Q):
++ key.vlan = get_unaligned_be16(tag + 2) & VLAN_VID_MASK;
++ break;
++ default:
++ break;
++ }
++
++ entry = rhashtable_lookup_fast(&ppe->l2_flows, &key, mtk_flow_l2_ht_params);
++ if (!entry)
++ goto out;
++
++ mtk_foe_entry_commit_subflow(ppe, entry, hash);
++
++out:
+ spin_unlock_bh(&ppe_lock);
+ }
+
+ int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
+ {
+- u16 now = mtk_eth_timestamp(ppe->eth) & MTK_FOE_IB1_BIND_TIMESTAMP;
+- u16 timestamp;
+-
+ mtk_flow_entry_update(ppe, entry);
+- timestamp = entry->data.ib1 & MTK_FOE_IB1_BIND_TIMESTAMP;
+
+- if (timestamp > now)
+- return MTK_FOE_IB1_BIND_TIMESTAMP + 1 - timestamp + now;
+- else
+- return now - timestamp;
++ return __mtk_foe_entry_idle_time(ppe, entry->data.ib1);
+ }
+
+ struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
+@@ -492,6 +687,8 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_
+ if (!ppe)
+ return NULL;
+
++ rhashtable_init(&ppe->l2_flows, &mtk_flow_l2_ht_params);
++
+ /* need to allocate a separate device, since it PPE DMA access is
+ * not coherent.
+ */
+--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
++++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
+@@ -6,6 +6,7 @@
+
+ #include <linux/kernel.h>
+ #include <linux/bitfield.h>
++#include <linux/rhashtable.h>
+
+ #define MTK_ETH_PPE_BASE 0xc00
+
+@@ -84,19 +85,16 @@ struct mtk_foe_mac_info {
+ u16 src_mac_lo;
+ };
+
++/* software-only entry type */
+ struct mtk_foe_bridge {
+- u32 dest_mac_hi;
+-
+- u16 src_mac_lo;
+- u16 dest_mac_lo;
++ u8 dest_mac[ETH_ALEN];
++ u8 src_mac[ETH_ALEN];
++ u16 vlan;
+
+- u32 src_mac_hi;
++ struct {} key_end;
+
+ u32 ib2;
+
+- u32 _rsv[5];
+-
+- u32 udf_tsid;
+ struct mtk_foe_mac_info l2;
+ };
+
+@@ -235,13 +233,33 @@ enum {
+ MTK_PPE_CPU_REASON_INVALID = 0x1f,
+ };
+
++enum {
++ MTK_FLOW_TYPE_L4,
++ MTK_FLOW_TYPE_L2,
++ MTK_FLOW_TYPE_L2_SUBFLOW,
++};
++
+ struct mtk_flow_entry {
++ union {
++ struct hlist_node list;
++ struct {
++ struct rhash_head l2_node;
++ struct hlist_head l2_flows;
++ };
++ };
++ u8 type;
++ s8 wed_index;
++ u16 hash;
++ union {
++ struct mtk_foe_entry data;
++ struct {
++ struct mtk_flow_entry *base_flow;
++ struct hlist_node list;
++ struct {} end;
++ } l2_data;
++ };
+ struct rhash_head node;
+- struct hlist_node list;
+ unsigned long cookie;
+- struct mtk_foe_entry data;
+- u16 hash;
+- s8 wed_index;
+ };
+
+ struct mtk_ppe {
+@@ -256,6 +274,8 @@ struct mtk_ppe {
+ u16 foe_check_time[MTK_PPE_ENTRIES];
+ struct hlist_head foe_flow[MTK_PPE_ENTRIES / 2];
+
++ struct rhashtable l2_flows;
++
+ void *acct_table;
+ };
+
+--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+@@ -31,6 +31,8 @@ struct mtk_flow_data {
+ __be16 src_port;
+ __be16 dst_port;
+
++ u16 vlan_in;
++
+ struct {
+ u16 id;
+ __be16 proto;
+@@ -260,9 +262,45 @@ mtk_flow_offload_replace(struct mtk_eth
+ return -EOPNOTSUPP;
+ }
+
++ switch (addr_type) {
++ case 0:
++ offload_type = MTK_PPE_PKT_TYPE_BRIDGE;
++ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
++ struct flow_match_eth_addrs match;
++
++ flow_rule_match_eth_addrs(rule, &match);
++ memcpy(data.eth.h_dest, match.key->dst, ETH_ALEN);
++ memcpy(data.eth.h_source, match.key->src, ETH_ALEN);
++ } else {
++ return -EOPNOTSUPP;
++ }
++
++ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
++ struct flow_match_vlan match;
++
++ flow_rule_match_vlan(rule, &match);
++
++ if (match.key->vlan_tpid != cpu_to_be16(ETH_P_8021Q))
++ return -EOPNOTSUPP;
++
++ data.vlan_in = match.key->vlan_id;
++ }
++ break;
++ case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
++ offload_type = MTK_PPE_PKT_TYPE_IPV4_HNAPT;
++ break;
++ case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
++ offload_type = MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T;
++ break;
++ default:
++ return -EOPNOTSUPP;
++ }
++
+ flow_action_for_each(i, act, &rule->action) {
+ switch (act->id) {
+ case FLOW_ACTION_MANGLE:
++ if (offload_type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return -EOPNOTSUPP;
+ if (act->mangle.htype == FLOW_ACT_MANGLE_HDR_TYPE_ETH)
+ mtk_flow_offload_mangle_eth(act, &data.eth);
+ break;
+@@ -294,17 +332,6 @@ mtk_flow_offload_replace(struct mtk_eth
+ }
+ }
+
+- switch (addr_type) {
+- case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
+- offload_type = MTK_PPE_PKT_TYPE_IPV4_HNAPT;
+- break;
+- case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
+- offload_type = MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T;
+- break;
+- default:
+- return -EOPNOTSUPP;
+- }
+-
+ if (!is_valid_ether_addr(data.eth.h_source) ||
+ !is_valid_ether_addr(data.eth.h_dest))
+ return -EINVAL;
+@@ -318,10 +345,13 @@ mtk_flow_offload_replace(struct mtk_eth
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
+ struct flow_match_ports ports;
+
++ if (offload_type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return -EOPNOTSUPP;
++
+ flow_rule_match_ports(rule, &ports);
+ data.src_port = ports.key->src;
+ data.dst_port = ports.key->dst;
+- } else {
++ } else if (offload_type != MTK_PPE_PKT_TYPE_BRIDGE) {
+ return -EOPNOTSUPP;
+ }
+
+@@ -351,6 +381,9 @@ mtk_flow_offload_replace(struct mtk_eth
+ if (act->id != FLOW_ACTION_MANGLE)
+ continue;
+
++ if (offload_type == MTK_PPE_PKT_TYPE_BRIDGE)
++ return -EOPNOTSUPP;
++
+ switch (act->mangle.htype) {
+ case FLOW_ACT_MANGLE_HDR_TYPE_TCP:
+ case FLOW_ACT_MANGLE_HDR_TYPE_UDP:
+@@ -376,6 +409,9 @@ mtk_flow_offload_replace(struct mtk_eth
+ return err;
+ }
+
++ if (offload_type == MTK_PPE_PKT_TYPE_BRIDGE)
++ foe.bridge.vlan = data.vlan_in;
++
+ if (data.vlan.num == 1) {
+ if (data.vlan.proto != htons(ETH_P_8021Q))
+ return -EOPNOTSUPP;
+++ /dev/null
---- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
-+++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
-@@ -6,6 +6,7 @@
- #include <linux/if_ether.h>
- #include <linux/rhashtable.h>
- #include <linux/ip.h>
-+#include <linux/ipv6.h>
- #include <net/flow_offload.h>
- #include <net/pkt_cls.h>
- #include <net/dsa.h>
-@@ -19,6 +20,11 @@ struct mtk_flow_data {
- __be32 src_addr;
- __be32 dst_addr;
- } v4;
-+
-+ struct {
-+ struct in6_addr src_addr;
-+ struct in6_addr dst_addr;
-+ } v6;
- };
-
- __be16 src_port;
-@@ -63,6 +69,14 @@ mtk_flow_set_ipv4_addr(struct mtk_foe_en
- data->v4.dst_addr, data->dst_port);
- }
-
-+static int
-+mtk_flow_set_ipv6_addr(struct mtk_foe_entry *foe, struct mtk_flow_data *data)
-+{
-+ return mtk_foe_entry_set_ipv6_tuple(foe,
-+ data->v6.src_addr.s6_addr32, data->src_port,
-+ data->v6.dst_addr.s6_addr32, data->dst_port);
-+}
-+
- static void
- mtk_flow_offload_mangle_eth(const struct flow_action_entry *act, void *eth)
- {
-@@ -256,6 +270,9 @@ mtk_flow_offload_replace(struct mtk_eth
- case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
- offload_type = MTK_PPE_PKT_TYPE_IPV4_HNAPT;
- break;
-+ case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
-+ offload_type = MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T;
-+ break;
- default:
- return -EOPNOTSUPP;
- }
-@@ -291,6 +308,17 @@ mtk_flow_offload_replace(struct mtk_eth
- mtk_flow_set_ipv4_addr(&foe, &data, false);
- }
-
-+ if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
-+ struct flow_match_ipv6_addrs addrs;
-+
-+ flow_rule_match_ipv6_addrs(rule, &addrs);
-+
-+ data.v6.src_addr = addrs.key->src;
-+ data.v6.dst_addr = addrs.key->dst;
-+
-+ mtk_flow_set_ipv6_addr(&foe, &data);
-+ }
-+
- flow_action_for_each(i, act, &rule->action) {
- if (act->id != FLOW_ACTION_MANGLE)
- continue;
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -2178,8 +2178,8 @@ static irqreturn_t mtk_handle_irq_rx(int
+@@ -2186,8 +2186,8 @@ static irqreturn_t mtk_handle_irq_rx(int
eth->rx_events++;
if (likely(napi_schedule_prep(ð->rx_napi))) {
}
return IRQ_HANDLED;
-@@ -2191,8 +2191,8 @@ static irqreturn_t mtk_handle_irq_tx(int
+@@ -2199,8 +2199,8 @@ static irqreturn_t mtk_handle_irq_tx(int
eth->tx_events++;
if (likely(napi_schedule_prep(ð->tx_napi))) {
}
return IRQ_HANDLED;
-@@ -3242,6 +3242,8 @@ static int mtk_probe(struct platform_dev
+@@ -3313,6 +3313,8 @@ static int mtk_probe(struct platform_dev
* for NAPI to work
*/
init_dummy_netdev(ð->dummy_dev);
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -3304,6 +3304,7 @@ static const struct mtk_soc_data mt7623_
+@@ -3373,6 +3373,7 @@ static const struct mtk_soc_data mt7623_
.hw_features = MTK_HW_FEATURES,
.required_clks = MT7623_CLKS_BITMAP,
.required_pctl = true,
+++ /dev/null
-From: Felix Fietkau <nbd@nbd.name>
-Date: Fri, 4 Sep 2020 18:36:06 +0200
-Subject: [PATCH] net: ethernet: mtk_eth_soc: add support for coherent DMA
-
-It improves performance by eliminating the need for a cache flush on rx and tx
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
-+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
-@@ -364,7 +364,7 @@
- };
-
- cci_control2: slave-if@5000 {
-- compatible = "arm,cci-400-ctrl-if";
-+ compatible = "arm,cci-400-ctrl-if", "syscon";
- interface-type = "ace";
- reg = <0x5000 0x1000>;
- };
-@@ -977,6 +977,8 @@
- power-domains = <&scpsys MT7622_POWER_DOMAIN_ETHSYS>;
- mediatek,ethsys = <ðsys>;
- mediatek,sgmiisys = <&sgmiisys>;
-+ mediatek,cci-control = <&cci_control2>;
-+ dma-coherent;
- #address-cells = <1>;
- #size-cells = <0>;
- status = "disabled";
---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -9,6 +9,7 @@
- #include <linux/of_device.h>
- #include <linux/of_mdio.h>
- #include <linux/of_net.h>
-+#include <linux/of_address.h>
- #include <linux/mfd/syscon.h>
- #include <linux/regmap.h>
- #include <linux/clk.h>
-@@ -2494,6 +2495,13 @@ static int mtk_hw_init(struct mtk_eth *e
- if (ret)
- goto err_disable_pm;
-
-+ if (of_dma_is_coherent(eth->dev->of_node)) {
-+ u32 mask = ETHSYS_DMA_AG_MAP_PDMA | ETHSYS_DMA_AG_MAP_QDMA |
-+ ETHSYS_DMA_AG_MAP_PPE;
-+
-+ regmap_update_bits(eth->ethsys, ETHSYS_DMA_AG_MAP, mask, mask);
-+ }
-+
- if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) {
- ret = device_reset(eth->dev);
- if (ret) {
-@@ -3104,6 +3112,16 @@ static int mtk_probe(struct platform_dev
- }
- }
-
-+ if (of_dma_is_coherent(pdev->dev.of_node)) {
-+ struct regmap *cci;
-+
-+ cci = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
-+ "mediatek,cci-control");
-+ /* enable CPU/bus coherency */
-+ if (!IS_ERR(cci))
-+ regmap_write(cci, 0, 3);
-+ }
-+
- if (MTK_HAS_CAPS(eth->soc->caps, MTK_SGMII)) {
- eth->sgmii = devm_kzalloc(eth->dev, sizeof(*eth->sgmii),
- GFP_KERNEL);
---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
-+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
-@@ -456,6 +456,12 @@
- #define RSTCTRL_FE BIT(6)
- #define RSTCTRL_PPE BIT(31)
-
-+/* ethernet dma channel agent map */
-+#define ETHSYS_DMA_AG_MAP 0x408
-+#define ETHSYS_DMA_AG_MAP_PDMA BIT(0)
-+#define ETHSYS_DMA_AG_MAP_QDMA BIT(1)
-+#define ETHSYS_DMA_AG_MAP_PPE BIT(2)
-+
- /* SGMII subsystem config registers */
- /* Register to auto-negotiation restart */
- #define SGMSYS_PCS_CONTROL_1 0x0
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -92,46 +92,53 @@ static int mtk_mdio_busy_wait(struct mtk
+@@ -94,46 +94,53 @@ static int mtk_mdio_busy_wait(struct mtk
}
dev_err(eth->dev, "mdio: MDIO timeout\n");
static int mtk_mdio_write(struct mii_bus *bus, int phy_addr,
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
-@@ -341,11 +341,17 @@
+@@ -344,11 +344,17 @@
/* PHY Indirect Access Control registers */
#define MTK_PHY_IAC 0x10004
#define PHY_IAC_ACCESS BIT(31)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -104,13 +104,35 @@ static int _mtk_mdio_write(struct mtk_et
+@@ -106,13 +106,35 @@ static int _mtk_mdio_write(struct mtk_et
if (ret < 0)
return ret;
ret = mtk_mdio_busy_wait(eth);
if (ret < 0)
-@@ -127,12 +149,33 @@ static int _mtk_mdio_read(struct mtk_eth
+@@ -129,12 +151,33 @@ static int _mtk_mdio_read(struct mtk_eth
if (ret < 0)
return ret;
ret = mtk_mdio_busy_wait(eth);
if (ret < 0)
-@@ -591,6 +634,7 @@ static int mtk_mdio_init(struct mtk_eth
+@@ -593,6 +636,7 @@ static int mtk_mdio_init(struct mtk_eth
eth->mii_bus->name = "mdio";
eth->mii_bus->read = mtk_mdio_read;
eth->mii_bus->write = mtk_mdio_write;
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
-@@ -346,9 +346,12 @@
+@@ -349,9 +349,12 @@
#define PHY_IAC_ADDR_MASK GENMASK(24, 20)
#define PHY_IAC_ADDR(x) FIELD_PREP(PHY_IAC_ADDR_MASK, (x))
#define PHY_IAC_CMD_MASK GENMASK(19, 18)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -575,6 +575,7 @@ static void mtk_validate(struct phylink_
+@@ -577,6 +577,7 @@ static void mtk_validate(struct phylink_
if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_SGMII)) {
phylink_set(mask, 1000baseT_Full);
phylink_set(mask, 1000baseX_Full);
slot1: pcie@1,0 {
reg = <0x0800 0 0 0 0>;
-@@ -933,6 +939,11 @@
- };
- };
-
-+ hifsys: syscon@1af00000 {
-+ compatible = "mediatek,mt7622-hifsys", "syscon";
-+ reg = <0 0x1af00000 0 0x70>;
-+ };
-+
- ethsys: syscon@1b000000 {
- compatible = "mediatek,mt7622-ethsys",
- "syscon";
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -20,6 +20,7 @@
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
-@@ -2941,6 +2941,7 @@ static const struct net_device_ops mtk_n
+@@ -2949,6 +2949,7 @@ static const struct net_device_ops mtk_n
static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np)
{
const __be32 *_id = of_get_property(np, "reg", NULL);
phy_interface_t phy_mode;
struct phylink *phylink;
-@@ -3036,6 +3037,9 @@ static int mtk_add_mac(struct mtk_eth *e
+@@ -3044,6 +3045,9 @@ static int mtk_add_mac(struct mtk_eth *e
else
eth->netdev[id]->max_mtu = MTK_MAX_RX_LENGTH_2K - MTK_RX_ETH_HLEN;
projects / openwrt / staging / mkresin.git / commitdiff