/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *
 *   Copyright (C) 2009-2016 John Crispin <blogic@openwrt.org>
 *   Copyright (C) 2009-2016 Felix Fietkau <nbd@openwrt.org>
 *   Copyright (C) 2013-2016 Michael Lee <igvtee@gmail.com>
 */

#ifndef MTK_ETH_H
#define MTK_ETH_H

#include <linux/dma-mapping.h>
#include <linux/netdevice.h>
#include <linux/of_net.h>
#include <linux/u64_stats_sync.h>
#include <linux/refcount.h>
#include <linux/phylink.h>
#include <linux/rhashtable.h>
#include <linux/dim.h>
#include <linux/bitfield.h>
#include <net/page_pool/types.h>
#include <linux/bpf_trace.h>
#include "mtk_ppe.h"

#define MTK_MAX_DSA_PORTS       7
#define MTK_DSA_PORT_MASK       GENMASK(2, 0)

#define MTK_QDMA_NUM_QUEUES     16
#define MTK_QDMA_PAGE_SIZE      2048
#define MTK_MAX_RX_LENGTH       1536
#define MTK_MAX_RX_LENGTH_2K    2048
#define MTK_TX_DMA_BUF_LEN      0x3fff
#define MTK_TX_DMA_BUF_LEN_V2   0xffff
#define MTK_QDMA_RING_SIZE      2048
#define MTK_DMA_SIZE(x)         (SZ_##x)
#define MTK_FQ_DMA_HEAD         32
#define MTK_FQ_DMA_LENGTH       2048
#define MTK_RX_ETH_HLEN         (ETH_HLEN + ETH_FCS_LEN)
#define MTK_RX_HLEN             (NET_SKB_PAD + MTK_RX_ETH_HLEN + NET_IP_ALIGN)
#define MTK_DMA_DUMMY_DESC      0xffffffff
#define MTK_DEFAULT_MSG_ENABLE  (NETIF_MSG_DRV | \
                                 NETIF_MSG_PROBE | \
                                 NETIF_MSG_LINK | \
                                 NETIF_MSG_TIMER | \
                                 NETIF_MSG_IFDOWN | \
                                 NETIF_MSG_IFUP | \
                                 NETIF_MSG_RX_ERR | \
                                 NETIF_MSG_TX_ERR)
#define MTK_HW_FEATURES         (NETIF_F_IP_CSUM | \
                                 NETIF_F_RXCSUM | \
                                 NETIF_F_HW_VLAN_CTAG_TX | \
                                 NETIF_F_SG | NETIF_F_TSO | \
                                 NETIF_F_TSO6 | \
                                 NETIF_F_IPV6_CSUM |\
                                 NETIF_F_HW_TC)
#define MTK_HW_FEATURES_MT7628  (NETIF_F_SG | NETIF_F_RXCSUM)
#define NEXT_DESP_IDX(X, Y)     (((X) + 1) & ((Y) - 1))

#define MTK_PP_HEADROOM         XDP_PACKET_HEADROOM
#define MTK_PP_PAD              (MTK_PP_HEADROOM + \
                                 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
#define MTK_PP_MAX_BUF_SIZE     (PAGE_SIZE - MTK_PP_PAD)

#define MTK_QRX_OFFSET          0x10

#define MTK_MAX_RX_RING_NUM     4
#define MTK_HW_LRO_DMA_SIZE     8

#define MTK_MAX_LRO_RX_LENGTH           (4096 * 3)
#define MTK_MAX_LRO_IP_CNT              2
#define MTK_HW_LRO_TIMER_UNIT           1       /* 20 us */
#define MTK_HW_LRO_REFRESH_TIME         50000   /* 1 sec. */
#define MTK_HW_LRO_AGG_TIME             10      /* 200us */
#define MTK_HW_LRO_AGE_TIME             50      /* 1ms */
#define MTK_HW_LRO_MAX_AGG_CNT          64
#define MTK_HW_LRO_BW_THRE              3000
#define MTK_HW_LRO_REPLACE_DELTA        1000
#define MTK_HW_LRO_SDL_REMAIN_ROOM      1522

/* Frame Engine Global Configuration */
#define MTK_FE_GLO_CFG(x)       (((x) == MTK_GMAC3_ID) ? 0x24 : 0x00)
#define MTK_FE_LINK_DOWN_P(x)   BIT(((x) + 8) % 16)

/* Frame Engine Global Reset Register */
#define MTK_RST_GL              0x04
#define RST_GL_PSE              BIT(0)

/* Frame Engine Interrupt Status Register */
#define MTK_INT_STATUS2         0x08
#define MTK_FE_INT_ENABLE       0x0c
#define MTK_FE_INT_FQ_EMPTY     BIT(8)
#define MTK_FE_INT_TSO_FAIL     BIT(12)
#define MTK_FE_INT_TSO_ILLEGAL  BIT(13)
#define MTK_FE_INT_TSO_ALIGN    BIT(14)
#define MTK_FE_INT_RFIFO_OV     BIT(18)
#define MTK_FE_INT_RFIFO_UF     BIT(19)
#define MTK_GDM1_AF             BIT(28)
#define MTK_GDM2_AF             BIT(29)

/* PDMA HW LRO Alter Flow Timer Register */
#define MTK_PDMA_LRO_ALT_REFRESH_TIMER  0x1c

/* Frame Engine Interrupt Grouping Register */
#define MTK_FE_INT_GRP          0x20

/* CDMP Ingress Control Register */
#define MTK_CDMQ_IG_CTRL        0x1400
#define MTK_CDMQ_STAG_EN        BIT(0)

/* CDMQ Exgress Control Register */
#define MTK_CDMQ_EG_CTRL        0x1404

/* CDMP Ingress Control Register */
#define MTK_CDMP_IG_CTRL        0x400
#define MTK_CDMP_STAG_EN        BIT(0)

/* CDMP Exgress Control Register */
#define MTK_CDMP_EG_CTRL        0x404

/* GDM Exgress Control Register */
#define MTK_GDMA_FWD_CFG(x)     ({ typeof(x) _x = (x); (_x == MTK_GMAC3_ID) ?   \
                                   0x540 : 0x500 + (_x * 0x1000); })
#define MTK_GDMA_SPECIAL_TAG    BIT(24)
#define MTK_GDMA_ICS_EN         BIT(22)
#define MTK_GDMA_TCS_EN         BIT(21)
#define MTK_GDMA_UCS_EN         BIT(20)
#define MTK_GDMA_STRP_CRC       BIT(16)
#define MTK_GDMA_TO_PDMA        0x0
#define MTK_GDMA_DROP_ALL       0x7777

/* GDM Egress Control Register */
#define MTK_GDMA_EG_CTRL(x)     ({ typeof(x) _x = (x); (_x == MTK_GMAC3_ID) ?   \
                                   0x544 : 0x504 + (_x * 0x1000); })
#define MTK_GDMA_XGDM_SEL       BIT(31)

/* Unicast Filter MAC Address Register - Low */
#define MTK_GDMA_MAC_ADRL(x)    ({ typeof(x) _x = (x); (_x == MTK_GMAC3_ID) ?   \
                                   0x548 : 0x508 + (_x * 0x1000); })

/* Unicast Filter MAC Address Register - High */
#define MTK_GDMA_MAC_ADRH(x)    ({ typeof(x) _x = (x); (_x == MTK_GMAC3_ID) ?   \
                                   0x54C : 0x50C + (_x * 0x1000); })

/* legacy DT support for internal SRAM */
#define MTK_ETH_SRAM_OFFSET             0x40000
#define MTK_ETH_SRAM_GRANULARITY        32
#define MTK_ETH_NETSYS_V2_SRAM_SIZE     0x40000

/* FE global misc reg*/
#define MTK_FE_GLO_MISC         0x124

/* PSE Free Queue Flow Control  */
#define PSE_FQFC_CFG1           0x100
#define PSE_FQFC_CFG2           0x104
#define PSE_DROP_CFG            0x108
#define PSE_PPE_DROP(x)         (0x110 + ((x) * 0x4))

/* PSE Last FreeQ Page Request Control */
#define PSE_DUMY_REQ            0x10C
/* PSE_DUMY_REQ is not a typo but actually called like that also in
 * MediaTek's datasheet
 */
#define PSE_DUMMY_WORK_GDM(x)   BIT(16 + (x))
#define DUMMY_PAGE_THR          0x1

/* PSE Input Queue Reservation Register*/
#define PSE_IQ_REV(x)           (0x140 + (((x) - 1) << 2))

/* PSE Output Queue Threshold Register*/
#define PSE_OQ_TH(x)            (0x160 + (((x) - 1) << 2))

/* GDM and CDM Threshold */
#define MTK_GDM2_THRES          0x1530
#define MTK_CDMW0_THRES         0x164c
#define MTK_CDMW1_THRES         0x1650
#define MTK_CDME0_THRES         0x1654
#define MTK_CDME1_THRES         0x1658
#define MTK_CDMM_THRES          0x165c

/* PDMA HW LRO Control Registers */
#define MTK_PDMA_LRO_CTRL_DW0   0x980
#define MTK_LRO_EN                      BIT(0)
#define MTK_L3_CKS_UPD_EN               BIT(7)
#define MTK_L3_CKS_UPD_EN_V2            BIT(19)
#define MTK_LRO_ALT_PKT_CNT_MODE        BIT(21)
#define MTK_LRO_RING_RELINQUISH_REQ     (0x7 << 26)
#define MTK_LRO_RING_RELINQUISH_REQ_V2  (0xf << 24)
#define MTK_LRO_RING_RELINQUISH_DONE    (0x7 << 29)
#define MTK_LRO_RING_RELINQUISH_DONE_V2 (0xf << 28)

#define MTK_PDMA_LRO_CTRL_DW1   0x984
#define MTK_PDMA_LRO_CTRL_DW2   0x988
#define MTK_PDMA_LRO_CTRL_DW3   0x98c
#define MTK_ADMA_MODE           BIT(15)
#define MTK_LRO_MIN_RXD_SDL     (MTK_HW_LRO_SDL_REMAIN_ROOM << 16)

#define MTK_RX_DMA_LRO_EN       BIT(8)
#define MTK_MULTI_EN            BIT(10)
#define MTK_PDMA_SIZE_8DWORDS   (1 << 4)

/* PDMA Global Configuration Register */
#define MTK_PDMA_LRO_SDL        0x3000
#define MTK_RX_CFG_SDL_OFFSET   16

/* PDMA Reset Index Register */
#define MTK_PST_DRX_IDX0        BIT(16)
#define MTK_PST_DRX_IDX_CFG(x)  (MTK_PST_DRX_IDX0 << (x))

/* PDMA Delay Interrupt Register */
#define MTK_PDMA_DELAY_RX_MASK          GENMASK(15, 0)
#define MTK_PDMA_DELAY_RX_EN            BIT(15)
#define MTK_PDMA_DELAY_RX_PINT_SHIFT    8
#define MTK_PDMA_DELAY_RX_PTIME_SHIFT   0

#define MTK_PDMA_DELAY_TX_MASK          GENMASK(31, 16)
#define MTK_PDMA_DELAY_TX_EN            BIT(31)
#define MTK_PDMA_DELAY_TX_PINT_SHIFT    24
#define MTK_PDMA_DELAY_TX_PTIME_SHIFT   16

#define MTK_PDMA_DELAY_PINT_MASK        0x7f
#define MTK_PDMA_DELAY_PTIME_MASK       0xff

/* PDMA HW LRO Alter Flow Delta Register */
#define MTK_PDMA_LRO_ALT_SCORE_DELTA    0xa4c

/* PDMA HW LRO IP Setting Registers */
#define MTK_LRO_RX_RING0_DIP_DW0        0xb04
#define MTK_LRO_DIP_DW0_CFG(x)          (MTK_LRO_RX_RING0_DIP_DW0 + (x * 0x40))
#define MTK_RING_MYIP_VLD               BIT(9)

/* PDMA HW LRO Ring Control Registers */
#define MTK_LRO_RX_RING0_CTRL_DW1       0xb28
#define MTK_LRO_RX_RING0_CTRL_DW2       0xb2c
#define MTK_LRO_RX_RING0_CTRL_DW3       0xb30
#define MTK_LRO_CTRL_DW1_CFG(x)         (MTK_LRO_RX_RING0_CTRL_DW1 + (x * 0x40))
#define MTK_LRO_CTRL_DW2_CFG(x)         (MTK_LRO_RX_RING0_CTRL_DW2 + (x * 0x40))
#define MTK_LRO_CTRL_DW3_CFG(x)         (MTK_LRO_RX_RING0_CTRL_DW3 + (x * 0x40))
#define MTK_RING_AGE_TIME_L             ((MTK_HW_LRO_AGE_TIME & 0x3ff) << 22)
#define MTK_RING_AGE_TIME_H             ((MTK_HW_LRO_AGE_TIME >> 10) & 0x3f)
#define MTK_RING_AUTO_LERAN_MODE        (3 << 6)
#define MTK_RING_VLD                    BIT(8)
#define MTK_RING_MAX_AGG_TIME           ((MTK_HW_LRO_AGG_TIME & 0xffff) << 10)
#define MTK_RING_MAX_AGG_CNT_L          ((MTK_HW_LRO_MAX_AGG_CNT & 0x3f) << 26)
#define MTK_RING_MAX_AGG_CNT_H          ((MTK_HW_LRO_MAX_AGG_CNT >> 6) & 0x3)

/* QDMA TX Queue Configuration Registers */
#define MTK_QTX_OFFSET          0x10
#define QDMA_RES_THRES          4

/* QDMA Tx Queue Scheduler Configuration Registers */
#define MTK_QTX_SCH_TX_SEL              BIT(31)
#define MTK_QTX_SCH_TX_SEL_V2           GENMASK(31, 30)

#define MTK_QTX_SCH_LEAKY_BUCKET_EN     BIT(30)
#define MTK_QTX_SCH_LEAKY_BUCKET_SIZE   GENMASK(29, 28)
#define MTK_QTX_SCH_MIN_RATE_EN         BIT(27)
#define MTK_QTX_SCH_MIN_RATE_MAN        GENMASK(26, 20)
#define MTK_QTX_SCH_MIN_RATE_EXP        GENMASK(19, 16)
#define MTK_QTX_SCH_MAX_RATE_WEIGHT     GENMASK(15, 12)
#define MTK_QTX_SCH_MAX_RATE_EN         BIT(11)
#define MTK_QTX_SCH_MAX_RATE_MAN        GENMASK(10, 4)
#define MTK_QTX_SCH_MAX_RATE_EXP        GENMASK(3, 0)

/* QDMA TX Scheduler Rate Control Register */
#define MTK_QDMA_TX_SCH_MAX_WFQ         BIT(15)

/* QDMA Global Configuration Register */
#define MTK_RX_2B_OFFSET        BIT(31)
#define MTK_RX_BT_32DWORDS      (3 << 11)
#define MTK_NDP_CO_PRO          BIT(10)
#define MTK_TX_WB_DDONE         BIT(6)
#define MTK_TX_BT_32DWORDS      (3 << 4)
#define MTK_RX_DMA_BUSY         BIT(3)
#define MTK_TX_DMA_BUSY         BIT(1)
#define MTK_RX_DMA_EN           BIT(2)
#define MTK_TX_DMA_EN           BIT(0)
#define MTK_DMA_BUSY_TIMEOUT_US 1000000

/* QDMA V2 Global Configuration Register */
#define MTK_CHK_DDONE_EN        BIT(28)
#define MTK_DMAD_WR_WDONE       BIT(26)
#define MTK_WCOMP_EN            BIT(24)
#define MTK_RESV_BUF            (0x40 << 16)
#define MTK_MUTLI_CNT           (0x4 << 12)
#define MTK_LEAKY_BUCKET_EN     BIT(11)

/* QDMA Flow Control Register */
#define FC_THRES_DROP_MODE      BIT(20)
#define FC_THRES_DROP_EN        (7 << 16)
#define FC_THRES_MIN            0x4444

/* QDMA Interrupt Status Register */
#define MTK_RX_DONE_DLY         BIT(30)
#define MTK_TX_DONE_DLY         BIT(28)
#define MTK_RX_DONE_INT3        BIT(19)
#define MTK_RX_DONE_INT2        BIT(18)
#define MTK_RX_DONE_INT1        BIT(17)
#define MTK_RX_DONE_INT0        BIT(16)
#define MTK_TX_DONE_INT3        BIT(3)
#define MTK_TX_DONE_INT2        BIT(2)
#define MTK_TX_DONE_INT1        BIT(1)
#define MTK_TX_DONE_INT0        BIT(0)
#define MTK_RX_DONE_INT         MTK_RX_DONE_DLY
#define MTK_TX_DONE_INT         MTK_TX_DONE_DLY

#define MTK_RX_DONE_INT_V2      BIT(14)

#define MTK_CDM_TXFIFO_RDY      BIT(7)

/* QDMA Interrupt grouping registers */
#define MTK_RLS_DONE_INT        BIT(0)

/* QDMA TX NUM */
#define QID_BITS_V2(x)          (((x) & 0x3f) << 16)
#define MTK_QDMA_GMAC2_QID      8

#define MTK_TX_DMA_BUF_SHIFT    8

/* QDMA V2 descriptor txd6 */
#define TX_DMA_INS_VLAN_V2      BIT(16)
/* QDMA V2 descriptor txd5 */
#define TX_DMA_CHKSUM_V2        (0x7 << 28)
#define TX_DMA_TSO_V2           BIT(31)

#define TX_DMA_SPTAG_V3         BIT(27)

/* QDMA V2 descriptor txd4 */
#define TX_DMA_FPORT_SHIFT_V2   8
#define TX_DMA_FPORT_MASK_V2    0xf
#define TX_DMA_SWC_V2           BIT(30)

/* QDMA descriptor txd4 */
#define TX_DMA_CHKSUM           (0x7 << 29)
#define TX_DMA_TSO              BIT(28)
#define TX_DMA_FPORT_SHIFT      25
#define TX_DMA_FPORT_MASK       0x7
#define TX_DMA_INS_VLAN         BIT(16)

/* QDMA descriptor txd3 */
#define TX_DMA_OWNER_CPU        BIT(31)
#define TX_DMA_LS0              BIT(30)
#define TX_DMA_PLEN0(x)         (((x) & eth->soc->tx.dma_max_len) << eth->soc->tx.dma_len_offset)
#define TX_DMA_PLEN1(x)         ((x) & eth->soc->tx.dma_max_len)
#define TX_DMA_SWC              BIT(14)
#define TX_DMA_PQID             GENMASK(3, 0)
#define TX_DMA_ADDR64_MASK      GENMASK(3, 0)
#if IS_ENABLED(CONFIG_64BIT)
# define TX_DMA_GET_ADDR64(x)   (((u64)FIELD_GET(TX_DMA_ADDR64_MASK, (x))) << 32)
# define TX_DMA_PREP_ADDR64(x)  FIELD_PREP(TX_DMA_ADDR64_MASK, ((x) >> 32))
#else
# define TX_DMA_GET_ADDR64(x)   (0)
# define TX_DMA_PREP_ADDR64(x)  (0)
#endif

/* PDMA on MT7628 */
#define TX_DMA_DONE             BIT(31)
#define TX_DMA_LS1              BIT(14)
#define TX_DMA_DESP2_DEF        (TX_DMA_LS0 | TX_DMA_DONE)

/* QDMA descriptor rxd2 */
#define RX_DMA_DONE             BIT(31)
#define RX_DMA_LSO              BIT(30)
#define RX_DMA_PREP_PLEN0(x)    (((x) & eth->soc->rx.dma_max_len) << eth->soc->rx.dma_len_offset)
#define RX_DMA_GET_PLEN0(x)     (((x) >> eth->soc->rx.dma_len_offset) & eth->soc->rx.dma_max_len)
#define RX_DMA_VTAG             BIT(15)
#define RX_DMA_ADDR64_MASK      GENMASK(3, 0)
#if IS_ENABLED(CONFIG_64BIT)
# define RX_DMA_GET_ADDR64(x)   (((u64)FIELD_GET(RX_DMA_ADDR64_MASK, (x))) << 32)
# define RX_DMA_PREP_ADDR64(x)  FIELD_PREP(RX_DMA_ADDR64_MASK, ((x) >> 32))
#else
# define RX_DMA_GET_ADDR64(x)   (0)
# define RX_DMA_PREP_ADDR64(x)  (0)
#endif

/* QDMA descriptor rxd3 */
#define RX_DMA_VID(x)           ((x) & VLAN_VID_MASK)
#define RX_DMA_TCI(x)           ((x) & (VLAN_PRIO_MASK | VLAN_VID_MASK))
#define RX_DMA_VPID(x)          (((x) >> 16) & 0xffff)

/* QDMA descriptor rxd4 */
#define MTK_RXD4_FOE_ENTRY      GENMASK(13, 0)
#define MTK_RXD4_PPE_CPU_REASON GENMASK(18, 14)
#define MTK_RXD4_SRC_PORT       GENMASK(21, 19)
#define MTK_RXD4_ALG            GENMASK(31, 22)

/* QDMA descriptor rxd4 */
#define RX_DMA_L4_VALID         BIT(24)
#define RX_DMA_L4_VALID_PDMA    BIT(30)         /* when PDMA is used */
#define RX_DMA_SPECIAL_TAG      BIT(22)

/* PDMA descriptor rxd5 */
#define MTK_RXD5_FOE_ENTRY      GENMASK(14, 0)
#define MTK_RXD5_PPE_CPU_REASON GENMASK(22, 18)
#define MTK_RXD5_SRC_PORT       GENMASK(29, 26)

#define RX_DMA_GET_SPORT(x)     (((x) >> 19) & 0x7)
#define RX_DMA_GET_SPORT_V2(x)  (((x) >> 26) & 0xf)

/* PDMA V2 descriptor rxd3 */
#define RX_DMA_VTAG_V2          BIT(0)
#define RX_DMA_L4_VALID_V2      BIT(2)

/* PHY Polling and SMI Master Control registers */
#define MTK_PPSC                0x10000
#define PPSC_MDC_CFG            GENMASK(29, 24)
#define PPSC_MDC_TURBO          BIT(20)
#define MDC_MAX_FREQ            25000000
#define MDC_MAX_DIVIDER         63

/* PHY Indirect Access Control registers */
#define MTK_PHY_IAC             0x10004
#define PHY_IAC_ACCESS          BIT(31)
#define PHY_IAC_REG_MASK        GENMASK(29, 25)
#define PHY_IAC_REG(x)          FIELD_PREP(PHY_IAC_REG_MASK, (x))
#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)
#define PHY_IAC_CMD_C45_ADDR    FIELD_PREP(PHY_IAC_CMD_MASK, 0)
#define PHY_IAC_CMD_WRITE       FIELD_PREP(PHY_IAC_CMD_MASK, 1)
#define PHY_IAC_CMD_C22_READ    FIELD_PREP(PHY_IAC_CMD_MASK, 2)
#define PHY_IAC_CMD_C45_READ    FIELD_PREP(PHY_IAC_CMD_MASK, 3)
#define PHY_IAC_START_MASK      GENMASK(17, 16)
#define PHY_IAC_START_C45       FIELD_PREP(PHY_IAC_START_MASK, 0)
#define PHY_IAC_START_C22       FIELD_PREP(PHY_IAC_START_MASK, 1)
#define PHY_IAC_DATA_MASK       GENMASK(15, 0)
#define PHY_IAC_DATA(x)         FIELD_PREP(PHY_IAC_DATA_MASK, (x))
#define PHY_IAC_TIMEOUT         HZ

#define MTK_MAC_MISC            0x1000c
#define MTK_MAC_MISC_V3         0x10010
#define MTK_MUX_TO_ESW          BIT(0)
#define MISC_MDC_TURBO          BIT(4)

/* XMAC status registers */
#define MTK_XGMAC_STS(x)        (((x) == MTK_GMAC3_ID) ? 0x1001C : 0x1000C)
#define MTK_XGMAC_FORCE_MODE(x) (((x) == MTK_GMAC2_ID) ? BIT(31) : BIT(15))
#define MTK_XGMAC_FORCE_LINK(x) (((x) == MTK_GMAC2_ID) ? BIT(27) : BIT(11))
#define MTK_USXGMII_PCS_LINK    BIT(8)
#define MTK_XGMAC_RX_FC         BIT(5)
#define MTK_XGMAC_TX_FC         BIT(4)
#define MTK_USXGMII_PCS_MODE    GENMASK(3, 1)
#define MTK_XGMAC_LINK_STS      BIT(0)

/* GSW bridge registers */
#define MTK_GSW_CFG             (0x10080)
#define GSWTX_IPG_MASK          GENMASK(19, 16)
#define GSWTX_IPG_SHIFT         16
#define GSWRX_IPG_MASK          GENMASK(3, 0)
#define GSWRX_IPG_SHIFT         0
#define GSW_IPG_11              11

/* Mac control registers */
#define MTK_MAC_MCR(x)          (0x10100 + (x * 0x100))
#define MAC_MCR_MAX_RX_MASK     GENMASK(25, 24)
#define MAC_MCR_MAX_RX(_x)      (MAC_MCR_MAX_RX_MASK & ((_x) << 24))
#define MAC_MCR_MAX_RX_1518     0x0
#define MAC_MCR_MAX_RX_1536     0x1
#define MAC_MCR_MAX_RX_1552     0x2
#define MAC_MCR_MAX_RX_2048     0x3
#define MAC_MCR_IPG_CFG         (BIT(18) | BIT(16))
#define MAC_MCR_FORCE_MODE      BIT(15)
#define MAC_MCR_TX_EN           BIT(14)
#define MAC_MCR_RX_EN           BIT(13)
#define MAC_MCR_RX_FIFO_CLR_DIS BIT(12)
#define MAC_MCR_BACKOFF_EN      BIT(9)
#define MAC_MCR_BACKPR_EN       BIT(8)
#define MAC_MCR_EEE1G           BIT(7)
#define MAC_MCR_EEE100M         BIT(6)
#define MAC_MCR_FORCE_RX_FC     BIT(5)
#define MAC_MCR_FORCE_TX_FC     BIT(4)
#define MAC_MCR_SPEED_1000      BIT(3)
#define MAC_MCR_SPEED_100       BIT(2)
#define MAC_MCR_FORCE_DPX       BIT(1)
#define MAC_MCR_FORCE_LINK      BIT(0)
#define MAC_MCR_FORCE_LINK_DOWN (MAC_MCR_FORCE_MODE)

/* Mac EEE control registers */
#define MTK_MAC_EEECR(x)                (0x10104 + (x * 0x100))
#define MAC_EEE_WAKEUP_TIME_1000        GENMASK(31, 24)
#define MAC_EEE_WAKEUP_TIME_100         GENMASK(23, 16)
#define MAC_EEE_LPI_TXIDLE_THD          GENMASK(15, 8)
#define MAC_EEE_CKG_TXIDLE              BIT(3)
#define MAC_EEE_CKG_RXLPI               BIT(2)
#define MAC_EEE_LPI_MODE                BIT(0)

/* Mac status registers */
#define MTK_MAC_MSR(x)          (0x10108 + (x * 0x100))
#define MAC_MSR_EEE1G           BIT(7)
#define MAC_MSR_EEE100M         BIT(6)
#define MAC_MSR_RX_FC           BIT(5)
#define MAC_MSR_TX_FC           BIT(4)
#define MAC_MSR_SPEED_1000      BIT(3)
#define MAC_MSR_SPEED_100       BIT(2)
#define MAC_MSR_SPEED_MASK      (MAC_MSR_SPEED_1000 | MAC_MSR_SPEED_100)
#define MAC_MSR_DPX             BIT(1)
#define MAC_MSR_LINK            BIT(0)

/* TRGMII RXC control register */
#define TRGMII_RCK_CTRL         0x10300
#define DQSI0(x)                ((x << 0) & GENMASK(6, 0))
#define DQSI1(x)                ((x << 8) & GENMASK(14, 8))
#define RXCTL_DMWTLAT(x)        ((x << 16) & GENMASK(18, 16))
#define RXC_RST                 BIT(31)
#define RXC_DQSISEL             BIT(30)
#define RCK_CTRL_RGMII_1000     (RXC_DQSISEL | RXCTL_DMWTLAT(2) | DQSI1(16))
#define RCK_CTRL_RGMII_10_100   RXCTL_DMWTLAT(2)

#define NUM_TRGMII_CTRL         5

/* TRGMII RXC control register */
#define TRGMII_TCK_CTRL         0x10340
#define TXCTL_DMWTLAT(x)        ((x << 16) & GENMASK(18, 16))
#define TXC_INV                 BIT(30)
#define TCK_CTRL_RGMII_1000     TXCTL_DMWTLAT(2)
#define TCK_CTRL_RGMII_10_100   (TXC_INV | TXCTL_DMWTLAT(2))

/* TRGMII TX Drive Strength */
#define TRGMII_TD_ODT(i)        (0x10354 + 8 * (i))
#define  TD_DM_DRVP(x)          ((x) & 0xf)
#define  TD_DM_DRVN(x)          (((x) & 0xf) << 4)

/* TRGMII Interface mode register */
#define INTF_MODE               0x10390
#define TRGMII_INTF_DIS         BIT(0)
#define TRGMII_MODE             BIT(1)
#define TRGMII_CENTRAL_ALIGNED  BIT(2)
#define INTF_MODE_RGMII_1000    (TRGMII_MODE | TRGMII_CENTRAL_ALIGNED)
#define INTF_MODE_RGMII_10_100  0

/* XFI Mac control registers */
#define MTK_XMAC_BASE(x)        (0x12000 + (((x) - 1) * 0x1000))
#define MTK_XMAC_MCR(x)         (MTK_XMAC_BASE(x))
#define XMAC_MCR_TRX_DISABLE    0xf
#define XMAC_MCR_FORCE_TX_FC    BIT(5)
#define XMAC_MCR_FORCE_RX_FC    BIT(4)

/* XFI Mac logic reset registers */
#define MTK_XMAC_LOGIC_RST(x)   (MTK_XMAC_BASE(x) + 0x10)
#define XMAC_LOGIC_RST          BIT(0)

/* XFI Mac count global control */
#define MTK_XMAC_CNT_CTRL(x)    (MTK_XMAC_BASE(x) + 0x100)
#define XMAC_GLB_CNTCLR         BIT(0)

/* GPIO port control registers for GMAC 2*/
#define GPIO_OD33_CTRL8         0x4c0
#define GPIO_BIAS_CTRL          0xed0
#define GPIO_DRV_SEL10          0xf00

/* ethernet subsystem chip id register */
#define ETHSYS_CHIPID0_3        0x0
#define ETHSYS_CHIPID4_7        0x4
#define MT7623_ETH              7623
#define MT7622_ETH              7622
#define MT7621_ETH              7621

/* ethernet system control register */
#define ETHSYS_SYSCFG           0x10
#define SYSCFG_DRAM_TYPE_DDR2   BIT(4)

/* ethernet subsystem config register */
#define ETHSYS_SYSCFG0          0x14
#define SYSCFG0_GE_MASK         0x3
#define SYSCFG0_GE_MODE(x, y)   (x << (12 + (y * 2)))
#define SYSCFG0_SGMII_MASK     GENMASK(9, 7)
#define SYSCFG0_SGMII_GMAC1    ((2 << 8) & SYSCFG0_SGMII_MASK)
#define SYSCFG0_SGMII_GMAC2    ((3 << 8) & SYSCFG0_SGMII_MASK)
#define SYSCFG0_SGMII_GMAC1_V2 BIT(9)
#define SYSCFG0_SGMII_GMAC2_V2 BIT(8)


/* ethernet subsystem clock register */
#define ETHSYS_CLKCFG0          0x2c
#define ETHSYS_TRGMII_CLK_SEL362_5      BIT(11)
#define ETHSYS_TRGMII_MT7621_MASK       (BIT(5) | BIT(6))
#define ETHSYS_TRGMII_MT7621_APLL       BIT(6)
#define ETHSYS_TRGMII_MT7621_DDR_PLL    BIT(5)

/* ethernet reset control register */
#define ETHSYS_RSTCTRL                  0x34
#define RSTCTRL_FE                      BIT(6)
#define RSTCTRL_WDMA0                   BIT(24)
#define RSTCTRL_WDMA1                   BIT(25)
#define RSTCTRL_WDMA2                   BIT(26)
#define RSTCTRL_PPE0                    BIT(31)
#define RSTCTRL_PPE0_V2                 BIT(30)
#define RSTCTRL_PPE1                    BIT(31)
#define RSTCTRL_PPE0_V3                 BIT(29)
#define RSTCTRL_PPE1_V3                 BIT(30)
#define RSTCTRL_PPE2                    BIT(31)
#define RSTCTRL_ETH                     BIT(23)

/* ethernet reset check idle register */
#define ETHSYS_FE_RST_CHK_IDLE_EN       0x28

/* 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)

/* Infrasys subsystem config registers */
#define INFRA_MISC2            0x70c
#define CO_QPHY_SEL            BIT(0)
#define GEPHY_MAC_SEL          BIT(1)

/* Top misc registers */
#define TOP_MISC_NETSYS_PCS_MUX 0x0
#define NETSYS_PCS_MUX_MASK     GENMASK(1, 0)
#define MUX_G2_USXGMII_SEL      BIT(1)

#define USB_PHY_SWITCH_REG      0x218
#define QPHY_SEL_MASK           GENMASK(1, 0)
#define SGMII_QPHY_SEL          0x2

/* MT7628/88 specific stuff */
#define MT7628_PDMA_OFFSET      0x0800
#define MT7628_SDM_OFFSET       0x0c00

#define MT7628_TX_BASE_PTR0     (MT7628_PDMA_OFFSET + 0x00)
#define MT7628_TX_MAX_CNT0      (MT7628_PDMA_OFFSET + 0x04)
#define MT7628_TX_CTX_IDX0      (MT7628_PDMA_OFFSET + 0x08)
#define MT7628_TX_DTX_IDX0      (MT7628_PDMA_OFFSET + 0x0c)
#define MT7628_PST_DTX_IDX0     BIT(0)

#define MT7628_SDM_MAC_ADRL     (MT7628_SDM_OFFSET + 0x0c)
#define MT7628_SDM_MAC_ADRH     (MT7628_SDM_OFFSET + 0x10)

/* Counter / stat register */
#define MT7628_SDM_TPCNT        (MT7628_SDM_OFFSET + 0x100)
#define MT7628_SDM_TBCNT        (MT7628_SDM_OFFSET + 0x104)
#define MT7628_SDM_RPCNT        (MT7628_SDM_OFFSET + 0x108)
#define MT7628_SDM_RBCNT        (MT7628_SDM_OFFSET + 0x10c)
#define MT7628_SDM_CS_ERR       (MT7628_SDM_OFFSET + 0x110)

#define MTK_FE_CDM1_FSM         0x220
#define MTK_FE_CDM2_FSM         0x224
#define MTK_FE_CDM3_FSM         0x238
#define MTK_FE_CDM4_FSM         0x298
#define MTK_FE_CDM5_FSM         0x318
#define MTK_FE_CDM6_FSM         0x328
#define MTK_FE_GDM1_FSM         0x228
#define MTK_FE_GDM2_FSM         0x22C

#define MTK_MAC_FSM(x)          (0x1010C + ((x) * 0x100))

#define MTK_FE_IRQ_SHARED       0
#define MTK_FE_IRQ_TX           0
#define MTK_FE_IRQ_RX           1
#define MTK_FE_IRQ_NUM          (MTK_FE_IRQ_RX + 1)

struct mtk_rx_dma {
        unsigned int rxd1;
        unsigned int rxd2;
        unsigned int rxd3;
        unsigned int rxd4;
} __packed __aligned(4);

struct mtk_rx_dma_v2 {
        unsigned int rxd1;
        unsigned int rxd2;
        unsigned int rxd3;
        unsigned int rxd4;
        unsigned int rxd5;
        unsigned int rxd6;
        unsigned int rxd7;
        unsigned int rxd8;
} __packed __aligned(4);

struct mtk_tx_dma {
        unsigned int txd1;
        unsigned int txd2;
        unsigned int txd3;
        unsigned int txd4;
} __packed __aligned(4);

struct mtk_tx_dma_v2 {
        unsigned int txd1;
        unsigned int txd2;
        unsigned int txd3;
        unsigned int txd4;
        unsigned int txd5;
        unsigned int txd6;
        unsigned int txd7;
        unsigned int txd8;
} __packed __aligned(4);

struct mtk_eth;
struct mtk_mac;

struct mtk_xdp_stats {
        u64 rx_xdp_redirect;
        u64 rx_xdp_pass;
        u64 rx_xdp_drop;
        u64 rx_xdp_tx;
        u64 rx_xdp_tx_errors;
        u64 tx_xdp_xmit;
        u64 tx_xdp_xmit_errors;
};

/* struct mtk_hw_stats - the structure that holds the traffic statistics.
 * @stats_lock:         make sure that stats operations are atomic
 * @reg_offset:         the status register offset of the SoC
 * @syncp:              the refcount
 *
 * All of the supported SoCs have hardware counters for traffic statistics.
 * Whenever the status IRQ triggers we can read the latest stats from these
 * counters and store them in this struct.
 */
struct mtk_hw_stats {
        u64 tx_bytes;
        u64 tx_packets;
        u64 tx_skip;
        u64 tx_collisions;
        u64 rx_bytes;
        u64 rx_packets;
        u64 rx_overflow;
        u64 rx_fcs_errors;
        u64 rx_short_errors;
        u64 rx_long_errors;
        u64 rx_checksum_errors;
        u64 rx_flow_control_packets;

        struct mtk_xdp_stats    xdp_stats;

        spinlock_t              stats_lock;
        u32                     reg_offset;
        struct u64_stats_sync   syncp;
};

enum mtk_tx_flags {
        /* PDMA descriptor can point at 1-2 segments. This enum allows us to
         * track how memory was allocated so that it can be freed properly.
         */
        MTK_TX_FLAGS_SINGLE0    = 0x01,
        MTK_TX_FLAGS_PAGE0      = 0x02,
};

/* This enum allows us to identify how the clock is defined on the array of the
 * clock in the order
 */
enum mtk_clks_map {
        MTK_CLK_ETHIF,
        MTK_CLK_SGMIITOP,
        MTK_CLK_ESW,
        MTK_CLK_GP0,
        MTK_CLK_GP1,
        MTK_CLK_GP2,
        MTK_CLK_GP3,
        MTK_CLK_XGP1,
        MTK_CLK_XGP2,
        MTK_CLK_XGP3,
        MTK_CLK_CRYPTO,
        MTK_CLK_FE,
        MTK_CLK_TRGPLL,
        MTK_CLK_SGMII_TX_250M,
        MTK_CLK_SGMII_RX_250M,
        MTK_CLK_SGMII_CDR_REF,
        MTK_CLK_SGMII_CDR_FB,
        MTK_CLK_SGMII2_TX_250M,
        MTK_CLK_SGMII2_RX_250M,
        MTK_CLK_SGMII2_CDR_REF,
        MTK_CLK_SGMII2_CDR_FB,
        MTK_CLK_SGMII_CK,
        MTK_CLK_ETH2PLL,
        MTK_CLK_WOCPU0,
        MTK_CLK_WOCPU1,
        MTK_CLK_NETSYS0,
        MTK_CLK_NETSYS1,
        MTK_CLK_ETHWARP_WOCPU2,
        MTK_CLK_ETHWARP_WOCPU1,
        MTK_CLK_ETHWARP_WOCPU0,
        MTK_CLK_TOP_SGM_0_SEL,
        MTK_CLK_TOP_SGM_1_SEL,
        MTK_CLK_TOP_ETH_GMII_SEL,
        MTK_CLK_TOP_ETH_REFCK_50M_SEL,
        MTK_CLK_TOP_ETH_SYS_200M_SEL,
        MTK_CLK_TOP_ETH_SYS_SEL,
        MTK_CLK_TOP_ETH_XGMII_SEL,
        MTK_CLK_TOP_ETH_MII_SEL,
        MTK_CLK_TOP_NETSYS_SEL,
        MTK_CLK_TOP_NETSYS_500M_SEL,
        MTK_CLK_TOP_NETSYS_PAO_2X_SEL,
        MTK_CLK_TOP_NETSYS_SYNC_250M_SEL,
        MTK_CLK_TOP_NETSYS_PPEFB_250M_SEL,
        MTK_CLK_TOP_NETSYS_WARP_SEL,
        MTK_CLK_MAX
};

#define MT7623_CLKS_BITMAP      (BIT_ULL(MTK_CLK_ETHIF) | BIT_ULL(MTK_CLK_ESW) |  \
                                 BIT_ULL(MTK_CLK_GP1) | BIT_ULL(MTK_CLK_GP2) | \
                                 BIT_ULL(MTK_CLK_TRGPLL))
#define MT7622_CLKS_BITMAP      (BIT_ULL(MTK_CLK_ETHIF) | BIT_ULL(MTK_CLK_ESW) |  \
                                 BIT_ULL(MTK_CLK_GP0) | BIT_ULL(MTK_CLK_GP1) | \
                                 BIT_ULL(MTK_CLK_GP2) | \
                                 BIT_ULL(MTK_CLK_SGMII_TX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII_RX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII_CDR_REF) | \
                                 BIT_ULL(MTK_CLK_SGMII_CDR_FB) | \
                                 BIT_ULL(MTK_CLK_SGMII_CK) | \
                                 BIT_ULL(MTK_CLK_ETH2PLL))
#define MT7621_CLKS_BITMAP      (0)
#define MT7628_CLKS_BITMAP      (0)
#define MT7629_CLKS_BITMAP      (BIT_ULL(MTK_CLK_ETHIF) | BIT_ULL(MTK_CLK_ESW) |  \
                                 BIT_ULL(MTK_CLK_GP0) | BIT_ULL(MTK_CLK_GP1) | \
                                 BIT_ULL(MTK_CLK_GP2) | BIT_ULL(MTK_CLK_FE) | \
                                 BIT_ULL(MTK_CLK_SGMII_TX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII_RX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII_CDR_REF) | \
                                 BIT_ULL(MTK_CLK_SGMII_CDR_FB) | \
                                 BIT_ULL(MTK_CLK_SGMII2_TX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII2_RX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII2_CDR_REF) | \
                                 BIT_ULL(MTK_CLK_SGMII2_CDR_FB) | \
                                 BIT_ULL(MTK_CLK_SGMII_CK) | \
                                 BIT_ULL(MTK_CLK_ETH2PLL) | BIT_ULL(MTK_CLK_SGMIITOP))
#define MT7981_CLKS_BITMAP      (BIT_ULL(MTK_CLK_FE) | BIT_ULL(MTK_CLK_GP2) | \
                                 BIT_ULL(MTK_CLK_GP1) | \
                                 BIT_ULL(MTK_CLK_WOCPU0) | \
                                 BIT_ULL(MTK_CLK_SGMII_TX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII_RX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII_CDR_REF) | \
                                 BIT_ULL(MTK_CLK_SGMII_CDR_FB) | \
                                 BIT_ULL(MTK_CLK_SGMII2_TX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII2_RX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII2_CDR_REF) | \
                                 BIT_ULL(MTK_CLK_SGMII2_CDR_FB) | \
                                 BIT_ULL(MTK_CLK_SGMII_CK))
#define MT7986_CLKS_BITMAP      (BIT_ULL(MTK_CLK_FE) | BIT_ULL(MTK_CLK_GP2) | \
                                 BIT_ULL(MTK_CLK_GP1) | \
                                 BIT_ULL(MTK_CLK_WOCPU1) | BIT_ULL(MTK_CLK_WOCPU0) | \
                                 BIT_ULL(MTK_CLK_SGMII_TX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII_RX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII_CDR_REF) | \
                                 BIT_ULL(MTK_CLK_SGMII_CDR_FB) | \
                                 BIT_ULL(MTK_CLK_SGMII2_TX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII2_RX_250M) | \
                                 BIT_ULL(MTK_CLK_SGMII2_CDR_REF) | \
                                 BIT_ULL(MTK_CLK_SGMII2_CDR_FB))
#define MT7988_CLKS_BITMAP      (BIT_ULL(MTK_CLK_FE) | BIT_ULL(MTK_CLK_ESW) | \
                                 BIT_ULL(MTK_CLK_GP1) | BIT_ULL(MTK_CLK_GP2) | \
                                 BIT_ULL(MTK_CLK_GP3) | BIT_ULL(MTK_CLK_XGP1) | \
                                 BIT_ULL(MTK_CLK_XGP2) | BIT_ULL(MTK_CLK_XGP3) | \
                                 BIT_ULL(MTK_CLK_CRYPTO) | \
                                 BIT_ULL(MTK_CLK_ETHWARP_WOCPU2) | \
                                 BIT_ULL(MTK_CLK_ETHWARP_WOCPU1) | \
                                 BIT_ULL(MTK_CLK_ETHWARP_WOCPU0) | \
                                 BIT_ULL(MTK_CLK_TOP_ETH_GMII_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_ETH_REFCK_50M_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_ETH_SYS_200M_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_ETH_SYS_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_ETH_XGMII_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_ETH_MII_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_NETSYS_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_NETSYS_500M_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_NETSYS_PAO_2X_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_NETSYS_SYNC_250M_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_NETSYS_PPEFB_250M_SEL) | \
                                 BIT_ULL(MTK_CLK_TOP_NETSYS_WARP_SEL))

enum mtk_dev_state {
        MTK_HW_INIT,
        MTK_RESETTING
};

/* PSE Port Definition */
enum mtk_pse_port {
        PSE_ADMA_PORT = 0,
        PSE_GDM1_PORT,
        PSE_GDM2_PORT,
        PSE_PPE0_PORT,
        PSE_PPE1_PORT,
        PSE_QDMA_TX_PORT,
        PSE_QDMA_RX_PORT,
        PSE_DROP_PORT,
        PSE_WDMA0_PORT,
        PSE_WDMA1_PORT,
        PSE_TDMA_PORT,
        PSE_NONE_PORT,
        PSE_PPE2_PORT,
        PSE_WDMA2_PORT,
        PSE_EIP197_PORT,
        PSE_GDM3_PORT,
        PSE_PORT_MAX
};

/* GMAC Identifier */
enum mtk_gmac_id {
        MTK_GMAC1_ID = 0,
        MTK_GMAC2_ID,
        MTK_GMAC3_ID,
        MTK_GMAC_ID_MAX
};

enum mtk_tx_buf_type {
        MTK_TYPE_SKB,
        MTK_TYPE_XDP_TX,
        MTK_TYPE_XDP_NDO,
};

/* struct mtk_tx_buf -  This struct holds the pointers to the memory pointed at
 *                      by the TX descriptor    s
 * @skb:                The SKB pointer of the packet being sent
 * @dma_addr0:          The base addr of the first segment
 * @dma_len0:           The length of the first segment
 * @dma_addr1:          The base addr of the second segment
 * @dma_len1:           The length of the second segment
 */
struct mtk_tx_buf {
        enum mtk_tx_buf_type type;
        void *data;

        u16 mac_id;
        u16 flags;
        DEFINE_DMA_UNMAP_ADDR(dma_addr0);
        DEFINE_DMA_UNMAP_LEN(dma_len0);
        DEFINE_DMA_UNMAP_ADDR(dma_addr1);
        DEFINE_DMA_UNMAP_LEN(dma_len1);
};

/* struct mtk_tx_ring - This struct holds info describing a TX ring
 * @dma:                The descriptor ring
 * @buf:                The memory pointed at by the ring
 * @phys:               The physical addr of tx_buf
 * @next_free:          Pointer to the next free descriptor
 * @last_free:          Pointer to the last free descriptor
 * @last_free_ptr:      Hardware pointer value of the last free descriptor
 * @thresh:             The threshold of minimum amount of free descriptors
 * @free_count:         QDMA uses a linked list. Track how many free descriptors
 *                      are present
 */
struct mtk_tx_ring {
        void *dma;
        struct mtk_tx_buf *buf;
        dma_addr_t phys;
        struct mtk_tx_dma *next_free;
        struct mtk_tx_dma *last_free;
        u32 last_free_ptr;
        u16 thresh;
        atomic_t free_count;
        int dma_size;
        struct mtk_tx_dma *dma_pdma;    /* For MT7628/88 PDMA handling */
        dma_addr_t phys_pdma;
        int cpu_idx;
};

/* PDMA rx ring mode */
enum mtk_rx_flags {
        MTK_RX_FLAGS_NORMAL = 0,
        MTK_RX_FLAGS_HWLRO,
        MTK_RX_FLAGS_QDMA,
};

/* struct mtk_rx_ring - This struct holds info describing a RX ring
 * @dma:                The descriptor ring
 * @data:               The memory pointed at by the ring
 * @phys:               The physical addr of rx_buf
 * @frag_size:          How big can each fragment be
 * @buf_size:           The size of each packet buffer
 * @calc_idx:           The current head of ring
 */
struct mtk_rx_ring {
        void *dma;
        u8 **data;
        dma_addr_t phys;
        u16 frag_size;
        u16 buf_size;
        u16 dma_size;
        bool calc_idx_update;
        u16 calc_idx;
        u32 crx_idx_reg;
        /* page_pool */
        struct page_pool *page_pool;
        struct xdp_rxq_info xdp_q;
};

enum mkt_eth_capabilities {
        MTK_RGMII_BIT = 0,
        MTK_TRGMII_BIT,
        MTK_SGMII_BIT,
        MTK_2P5GPHY_BIT,
        MTK_ESW_BIT,
        MTK_GEPHY_BIT,
        MTK_MUX_BIT,
        MTK_INFRA_BIT,
        MTK_SHARED_SGMII_BIT,
        MTK_HWLRO_BIT,
        MTK_SHARED_INT_BIT,
        MTK_TRGMII_MT7621_CLK_BIT,
        MTK_QDMA_BIT,
        MTK_SOC_MT7628_BIT,
        MTK_RSTCTRL_PPE1_BIT,
        MTK_RSTCTRL_PPE2_BIT,
        MTK_U3_COPHY_V2_BIT,
        MTK_SRAM_BIT,
        MTK_36BIT_DMA_BIT,

        /* MUX BITS*/
        MTK_ETH_MUX_GDM1_TO_GMAC1_ESW_BIT,
        MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY_BIT,
        MTK_ETH_MUX_U3_GMAC2_TO_QPHY_BIT,
        MTK_ETH_MUX_GMAC2_TO_2P5GPHY_BIT,
        MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII_BIT,
        MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII_BIT,

        /* PATH BITS */
        MTK_ETH_PATH_GMAC1_RGMII_BIT,
        MTK_ETH_PATH_GMAC1_TRGMII_BIT,
        MTK_ETH_PATH_GMAC1_SGMII_BIT,
        MTK_ETH_PATH_GMAC2_RGMII_BIT,
        MTK_ETH_PATH_GMAC2_SGMII_BIT,
        MTK_ETH_PATH_GMAC2_2P5GPHY_BIT,
        MTK_ETH_PATH_GMAC2_GEPHY_BIT,
        MTK_ETH_PATH_GDM1_ESW_BIT,
};

/* Supported hardware group on SoCs */
#define MTK_RGMII               BIT_ULL(MTK_RGMII_BIT)
#define MTK_TRGMII              BIT_ULL(MTK_TRGMII_BIT)
#define MTK_SGMII               BIT_ULL(MTK_SGMII_BIT)
#define MTK_2P5GPHY             BIT_ULL(MTK_2P5GPHY_BIT)
#define MTK_ESW                 BIT_ULL(MTK_ESW_BIT)
#define MTK_GEPHY               BIT_ULL(MTK_GEPHY_BIT)
#define MTK_MUX                 BIT_ULL(MTK_MUX_BIT)
#define MTK_INFRA               BIT_ULL(MTK_INFRA_BIT)
#define MTK_SHARED_SGMII        BIT_ULL(MTK_SHARED_SGMII_BIT)
#define MTK_HWLRO               BIT_ULL(MTK_HWLRO_BIT)
#define MTK_SHARED_INT          BIT_ULL(MTK_SHARED_INT_BIT)
#define MTK_TRGMII_MT7621_CLK   BIT_ULL(MTK_TRGMII_MT7621_CLK_BIT)
#define MTK_QDMA                BIT_ULL(MTK_QDMA_BIT)
#define MTK_SOC_MT7628          BIT_ULL(MTK_SOC_MT7628_BIT)
#define MTK_RSTCTRL_PPE1        BIT_ULL(MTK_RSTCTRL_PPE1_BIT)
#define MTK_RSTCTRL_PPE2        BIT_ULL(MTK_RSTCTRL_PPE2_BIT)
#define MTK_U3_COPHY_V2         BIT_ULL(MTK_U3_COPHY_V2_BIT)
#define MTK_SRAM                BIT_ULL(MTK_SRAM_BIT)
#define MTK_36BIT_DMA   BIT_ULL(MTK_36BIT_DMA_BIT)

#define MTK_ETH_MUX_GDM1_TO_GMAC1_ESW           \
        BIT_ULL(MTK_ETH_MUX_GDM1_TO_GMAC1_ESW_BIT)
#define MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY        \
        BIT_ULL(MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY_BIT)
#define MTK_ETH_MUX_U3_GMAC2_TO_QPHY            \
        BIT_ULL(MTK_ETH_MUX_U3_GMAC2_TO_QPHY_BIT)
#define MTK_ETH_MUX_GMAC2_TO_2P5GPHY            \
        BIT_ULL(MTK_ETH_MUX_GMAC2_TO_2P5GPHY_BIT)
#define MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII  \
        BIT_ULL(MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII_BIT)
#define MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII       \
        BIT_ULL(MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII_BIT)

/* Supported path present on SoCs */
#define MTK_ETH_PATH_GMAC1_RGMII        BIT_ULL(MTK_ETH_PATH_GMAC1_RGMII_BIT)
#define MTK_ETH_PATH_GMAC1_TRGMII       BIT_ULL(MTK_ETH_PATH_GMAC1_TRGMII_BIT)
#define MTK_ETH_PATH_GMAC1_SGMII        BIT_ULL(MTK_ETH_PATH_GMAC1_SGMII_BIT)
#define MTK_ETH_PATH_GMAC2_RGMII        BIT_ULL(MTK_ETH_PATH_GMAC2_RGMII_BIT)
#define MTK_ETH_PATH_GMAC2_SGMII        BIT_ULL(MTK_ETH_PATH_GMAC2_SGMII_BIT)
#define MTK_ETH_PATH_GMAC2_2P5GPHY      BIT_ULL(MTK_ETH_PATH_GMAC2_2P5GPHY_BIT)
#define MTK_ETH_PATH_GMAC2_GEPHY        BIT_ULL(MTK_ETH_PATH_GMAC2_GEPHY_BIT)
#define MTK_ETH_PATH_GDM1_ESW           BIT_ULL(MTK_ETH_PATH_GDM1_ESW_BIT)

#define MTK_GMAC1_RGMII         (MTK_ETH_PATH_GMAC1_RGMII | MTK_RGMII)
#define MTK_GMAC1_TRGMII        (MTK_ETH_PATH_GMAC1_TRGMII | MTK_TRGMII)
#define MTK_GMAC1_SGMII         (MTK_ETH_PATH_GMAC1_SGMII | MTK_SGMII)
#define MTK_GMAC2_RGMII         (MTK_ETH_PATH_GMAC2_RGMII | MTK_RGMII)
#define MTK_GMAC2_SGMII         (MTK_ETH_PATH_GMAC2_SGMII | MTK_SGMII)
#define MTK_GMAC2_GEPHY         (MTK_ETH_PATH_GMAC2_GEPHY | MTK_GEPHY)
#define MTK_GMAC2_2P5GPHY       (MTK_ETH_PATH_GMAC2_2P5GPHY | MTK_2P5GPHY)
#define MTK_GDM1_ESW            (MTK_ETH_PATH_GDM1_ESW | MTK_ESW)

/* MUXes present on SoCs */
/* 0: GDM1 -> GMAC1, 1: GDM1 -> ESW */
#define MTK_MUX_GDM1_TO_GMAC1_ESW (MTK_ETH_MUX_GDM1_TO_GMAC1_ESW | MTK_MUX)

/* 0: GMAC2 -> GEPHY, 1: GMAC0 -> GePHY */
#define MTK_MUX_GMAC2_GMAC0_TO_GEPHY    \
        (MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY | MTK_MUX | MTK_INFRA)

/* 0: U3 -> QPHY, 1: GMAC2 -> QPHY */
#define MTK_MUX_U3_GMAC2_TO_QPHY        \
        (MTK_ETH_MUX_U3_GMAC2_TO_QPHY | MTK_MUX | MTK_INFRA)

/* 2: GMAC1 -> SGMII, 3: GMAC2 -> SGMII */
#define MTK_MUX_GMAC1_GMAC2_TO_SGMII_RGMII      \
        (MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII | MTK_MUX | \
        MTK_SHARED_SGMII)

/* 2: GMAC2 -> 2P5GPHY */
#define MTK_MUX_GMAC2_TO_2P5GPHY      \
        (MTK_ETH_MUX_GMAC2_TO_2P5GPHY | MTK_MUX | MTK_INFRA)

/* 0: GMACx -> GEPHY, 1: GMACx -> SGMII where x is 1 or 2 */
#define MTK_MUX_GMAC12_TO_GEPHY_SGMII   \
        (MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII | MTK_MUX)

#define MTK_HAS_CAPS(caps, _x)          (((caps) & (_x)) == (_x))

#define MT7621_CAPS  (MTK_GMAC1_RGMII | MTK_GMAC1_TRGMII | \
                      MTK_GMAC2_RGMII | MTK_SHARED_INT | \
                      MTK_TRGMII_MT7621_CLK | MTK_QDMA)

#define MT7622_CAPS  (MTK_GMAC1_RGMII | MTK_GMAC1_SGMII | MTK_GMAC2_RGMII | \
                      MTK_GMAC2_SGMII | MTK_GDM1_ESW | \
                      MTK_MUX_GDM1_TO_GMAC1_ESW | \
                      MTK_MUX_GMAC1_GMAC2_TO_SGMII_RGMII | MTK_QDMA)

#define MT7623_CAPS  (MTK_GMAC1_RGMII | MTK_GMAC1_TRGMII | MTK_GMAC2_RGMII | \
                      MTK_QDMA)

#define MT7628_CAPS  (MTK_SHARED_INT | MTK_SOC_MT7628)

#define MT7629_CAPS  (MTK_GMAC1_SGMII | MTK_GMAC2_SGMII | MTK_GMAC2_GEPHY | \
                      MTK_GDM1_ESW | MTK_MUX_GDM1_TO_GMAC1_ESW | \
                      MTK_MUX_GMAC2_GMAC0_TO_GEPHY | \
                      MTK_MUX_U3_GMAC2_TO_QPHY | \
                      MTK_MUX_GMAC12_TO_GEPHY_SGMII | MTK_QDMA)

#define MT7981_CAPS  (MTK_GMAC1_SGMII | MTK_GMAC2_SGMII | MTK_GMAC2_GEPHY | \
                      MTK_MUX_GMAC12_TO_GEPHY_SGMII | MTK_QDMA | \
                      MTK_MUX_U3_GMAC2_TO_QPHY | MTK_U3_COPHY_V2 | \
                      MTK_RSTCTRL_PPE1 | MTK_SRAM)

#define MT7986_CAPS  (MTK_GMAC1_SGMII | MTK_GMAC2_SGMII | \
                      MTK_MUX_GMAC12_TO_GEPHY_SGMII | MTK_QDMA | \
                      MTK_RSTCTRL_PPE1 | MTK_SRAM)

#define MT7988_CAPS  (MTK_36BIT_DMA | MTK_GDM1_ESW | MTK_GMAC2_2P5GPHY | \
                      MTK_MUX_GMAC2_TO_2P5GPHY | MTK_QDMA | MTK_RSTCTRL_PPE1 | \
                      MTK_RSTCTRL_PPE2 | MTK_SRAM)

struct mtk_tx_dma_desc_info {
        dma_addr_t      addr;
        u32             size;
        u16             vlan_tci;
        u16             qid;
        u8              gso:1;
        u8              csum:1;
        u8              vlan:1;
        u8              first:1;
        u8              last:1;
};

struct mtk_reg_map {
        u32     tx_irq_mask;
        u32     tx_irq_status;
        struct {
                u32     rx_ptr;         /* rx base pointer */
                u32     rx_cnt_cfg;     /* rx max count configuration */
                u32     pcrx_ptr;       /* rx cpu pointer */
                u32     glo_cfg;        /* global configuration */
                u32     rst_idx;        /* reset index */
                u32     delay_irq;      /* delay interrupt */
                u32     irq_status;     /* interrupt status */
                u32     irq_mask;       /* interrupt mask */
                u32     adma_rx_dbg0;
                u32     int_grp;
        } pdma;
        struct {
                u32     qtx_cfg;        /* tx queue configuration */
                u32     qtx_sch;        /* tx queue scheduler configuration */
                u32     rx_ptr;         /* rx base pointer */
                u32     rx_cnt_cfg;     /* rx max count configuration */
                u32     qcrx_ptr;       /* rx cpu pointer */
                u32     glo_cfg;        /* global configuration */
                u32     rst_idx;        /* reset index */
                u32     delay_irq;      /* delay interrupt */
                u32     fc_th;          /* flow control */
                u32     int_grp;
                u32     hred;           /* interrupt mask */
                u32     ctx_ptr;        /* tx acquire cpu pointer */
                u32     dtx_ptr;        /* tx acquire dma pointer */
                u32     crx_ptr;        /* tx release cpu pointer */
                u32     drx_ptr;        /* tx release dma pointer */
                u32     fq_head;        /* fq head pointer */
                u32     fq_tail;        /* fq tail pointer */
                u32     fq_count;       /* fq free page count */
                u32     fq_blen;        /* fq free page buffer length */
                u32     tx_sch_rate;    /* tx scheduler rate control registers */
        } qdma;
        u32     gdm1_cnt;
        u32     gdma_to_ppe[3];
        u32     ppe_base;
        u32     wdma_base[3];
        u32     pse_iq_sta;
        u32     pse_oq_sta;
};

/* struct mtk_eth_data -        This is the structure holding all differences
 *                              among various platforms
 * @reg_map                     Soc register map.
 * @ana_rgc3:                   The offset for register ANA_RGC3 related to
 *                              sgmiisys syscon
 * @caps                        Flags shown the extra capability for the SoC
 * @hw_features                 Flags shown HW features
 * @required_clks               Flags shown the bitmap for required clocks on
 *                              the target SoC
 * @required_pctl               A bool value to show whether the SoC requires
 *                              the extra setup for those pins used by GMAC.
 * @hash_offset                 Flow table hash offset.
 * @version                     SoC version.
 * @foe_entry_size              Foe table entry size.
 * @has_accounting              Bool indicating support for accounting of
 *                              offloaded flows.
 * @desc_size                   Tx/Rx DMA descriptor size.
 * @irq_done_mask               Rx irq done register mask.
 * @dma_l4_valid                Rx DMA valid register mask.
 * @dma_max_len                 Max DMA tx/rx buffer length.
 * @dma_len_offset              Tx/Rx DMA length field offset.
 */
struct mtk_soc_data {
        const struct mtk_reg_map *reg_map;
        u32             ana_rgc3;
        u64             caps;
        u64             required_clks;
        bool            required_pctl;
        u8              offload_version;
        u8              hash_offset;
        u8              version;
        u8              ppe_num;
        u16             foe_entry_size;
        netdev_features_t hw_features;
        bool            has_accounting;
        bool            disable_pll_modes;
        struct {
                u32     desc_size;
                u32     dma_max_len;
                u32     dma_len_offset;
                u32     dma_size;
                u32     fq_dma_size;
        } tx;
        struct {
                u32     desc_size;
                u32     irq_done_mask;
                u32     dma_l4_valid;
                u32     dma_max_len;
                u32     dma_len_offset;
                u32     dma_size;
        } rx;
};

#define MTK_DMA_MONITOR_TIMEOUT         msecs_to_jiffies(1000)

/* currently no SoC has more than 3 macs */
#define MTK_MAX_DEVS    3

/* struct mtk_eth -     This is the main datasructure for holding the state
 *                      of the driver
 * @dev:                The device pointer
 * @dma_dev:            The device pointer used for dma mapping/alloc
 * @base:               The mapped register i/o base
 * @sram_pool:          Pointer to SRAM pool used for DMA descriptor rings
 * @page_lock:          Make sure that register operations are atomic
 * @tx_irq__lock:       Make sure that IRQ register operations are atomic
 * @rx_irq__lock:       Make sure that IRQ register operations are atomic
 * @dim_lock:           Make sure that Net DIM operations are atomic
 * @dummy_dev:          we run 2 netdevs on 1 physical DMA ring and need a
 *                      dummy for NAPI to work
 * @netdev:             The netdev instances
 * @mac:                Each netdev is linked to a physical MAC
 * @irq:                The IRQ that we are using
 * @msg_enable:         Ethtool msg level
 * @ethsys:             The register map pointing at the range used to setup
 *                      MII modes
 * @infra:              The register map pointing at the range used to setup
 *                      SGMII and GePHY path
 * @sgmii_pcs:          Pointers to mtk-pcs-lynxi phylink_pcs instances
 * @pctl:               The register map pointing at the range used to setup
 *                      GMAC port drive/slew values
 * @dma_refcnt:         track how many netdevs are using the DMA engine
 * @tx_ring:            Pointer to the memory holding info about the TX ring
 * @rx_ring:            Pointer to the memory holding info about the RX ring
 * @rx_ring_qdma:       Pointer to the memory holding info about the QDMA RX ring
 * @tx_napi:            The TX NAPI struct
 * @rx_napi:            The RX NAPI struct
 * @rx_events:          Net DIM RX event counter
 * @rx_packets:         Net DIM RX packet counter
 * @rx_bytes:           Net DIM RX byte counter
 * @rx_dim:             Net DIM RX context
 * @tx_events:          Net DIM TX event counter
 * @tx_packets:         Net DIM TX packet counter
 * @tx_bytes:           Net DIM TX byte counter
 * @tx_dim:             Net DIM TX context
 * @scratch_ring:       Newer SoCs need memory for a second HW managed TX ring
 * @phy_scratch_ring:   physical address of scratch_ring
 * @scratch_head:       The scratch memory that scratch_ring points to.
 * @clks:               clock array for all clocks required
 * @mii_bus:            If there is a bus we need to create an instance for it
 * @pending_work:       The workqueue used to reset the dma ring
 * @state:              Initialization and runtime state of the device
 * @soc:                Holding specific data among various SoCs
 */

struct mtk_eth {
        struct device                   *dev;
        struct device                   *dma_dev;
        void __iomem                    *base;
        struct gen_pool                 *sram_pool;
        spinlock_t                      page_lock;
        spinlock_t                      tx_irq_lock;
        spinlock_t                      rx_irq_lock;
        struct net_device               *dummy_dev;
        struct net_device               *netdev[MTK_MAX_DEVS];
        struct mtk_mac                  *mac[MTK_MAX_DEVS];
        int                             irq[MTK_FE_IRQ_NUM];
        u32                             msg_enable;
        unsigned long                   sysclk;
        struct regmap                   *ethsys;
        struct regmap                   *infra;
        struct phylink_pcs              *sgmii_pcs[MTK_MAX_DEVS];
        struct regmap                   *pctl;
        bool                            hwlro;
        refcount_t                      dma_refcnt;
        struct mtk_tx_ring              tx_ring;
        struct mtk_rx_ring              rx_ring[MTK_MAX_RX_RING_NUM];
        struct mtk_rx_ring              rx_ring_qdma;
        struct napi_struct              tx_napi;
        struct napi_struct              rx_napi;
        void                            *scratch_ring;
        dma_addr_t                      phy_scratch_ring;
        void                            *scratch_head[MTK_FQ_DMA_HEAD];
        struct clk                      *clks[MTK_CLK_MAX];

        struct mii_bus                  *mii_bus;
        unsigned int                    mdc_divider;
        struct work_struct              pending_work;
        unsigned long                   state;

        const struct mtk_soc_data       *soc;

        spinlock_t                      dim_lock;

        u32                             rx_events;
        u32                             rx_packets;
        u32                             rx_bytes;
        struct dim                      rx_dim;

        u32                             tx_events;
        u32                             tx_packets;
        u32                             tx_bytes;
        struct dim                      tx_dim;

        int                             ip_align;

        struct metadata_dst             *dsa_meta[MTK_MAX_DSA_PORTS];

        struct mtk_ppe                  *ppe[3];
        struct rhashtable               flow_table;

        struct bpf_prog                 __rcu *prog;

        struct {
                struct delayed_work monitor_work;
                u32 wdidx;
                u8 wdma_hang_count;
                u8 qdma_hang_count;
                u8 adma_hang_count;
        } reset;
};

/* struct mtk_mac -     the structure that holds the info about the MACs of the
 *                      SoC
 * @id:                 The number of the MAC
 * @interface:          Interface mode kept for detecting change in hw settings
 * @of_node:            Our devicetree node
 * @hw:                 Backpointer to our main datastruture
 * @hw_stats:           Packet statistics counter
 */
struct mtk_mac {
        int                             id;
        phy_interface_t                 interface;
        u8                              ppe_idx;
        int                             speed;
        struct device_node              *of_node;
        struct phylink                  *phylink;
        struct phylink_config           phylink_config;
        struct mtk_eth                  *hw;
        struct mtk_hw_stats             *hw_stats;
        __be32                          hwlro_ip[MTK_MAX_LRO_IP_CNT];
        int                             hwlro_ip_cnt;
        unsigned int                    syscfg0;
        struct notifier_block           device_notifier;
};

/* the struct describing the SoC. these are declared in the soc_xyz.c files */
extern const struct of_device_id of_mtk_match[];

static inline bool mtk_is_netsys_v1(struct mtk_eth *eth)
{
        return eth->soc->version == 1;
}

static inline bool mtk_is_netsys_v2_or_greater(struct mtk_eth *eth)
{
        return eth->soc->version > 1;
}

static inline bool mtk_is_netsys_v3_or_greater(struct mtk_eth *eth)
{
        return eth->soc->version > 2;
}

static inline struct mtk_foe_entry *
mtk_foe_get_entry(struct mtk_ppe *ppe, u16 hash)
{
        const struct mtk_soc_data *soc = ppe->eth->soc;

        return ppe->foe_table + hash * soc->foe_entry_size;
}

static inline u32 mtk_get_ib1_ts_mask(struct mtk_eth *eth)
{
        if (mtk_is_netsys_v2_or_greater(eth))
                return MTK_FOE_IB1_BIND_TIMESTAMP_V2;

        return MTK_FOE_IB1_BIND_TIMESTAMP;
}

static inline u32 mtk_get_ib1_ppoe_mask(struct mtk_eth *eth)
{
        if (mtk_is_netsys_v2_or_greater(eth))
                return MTK_FOE_IB1_BIND_PPPOE_V2;

        return MTK_FOE_IB1_BIND_PPPOE;
}

static inline u32 mtk_get_ib1_vlan_tag_mask(struct mtk_eth *eth)
{
        if (mtk_is_netsys_v2_or_greater(eth))
                return MTK_FOE_IB1_BIND_VLAN_TAG_V2;

        return MTK_FOE_IB1_BIND_VLAN_TAG;
}

static inline u32 mtk_get_ib1_vlan_layer_mask(struct mtk_eth *eth)
{
        if (mtk_is_netsys_v2_or_greater(eth))
                return MTK_FOE_IB1_BIND_VLAN_LAYER_V2;

        return MTK_FOE_IB1_BIND_VLAN_LAYER;
}

static inline u32 mtk_prep_ib1_vlan_layer(struct mtk_eth *eth, u32 val)
{
        if (mtk_is_netsys_v2_or_greater(eth))
                return FIELD_PREP(MTK_FOE_IB1_BIND_VLAN_LAYER_V2, val);

        return FIELD_PREP(MTK_FOE_IB1_BIND_VLAN_LAYER, val);
}

static inline u32 mtk_get_ib1_vlan_layer(struct mtk_eth *eth, u32 val)
{
        if (mtk_is_netsys_v2_or_greater(eth))
                return FIELD_GET(MTK_FOE_IB1_BIND_VLAN_LAYER_V2, val);

        return FIELD_GET(MTK_FOE_IB1_BIND_VLAN_LAYER, val);
}

static inline u32 mtk_get_ib1_pkt_type_mask(struct mtk_eth *eth)
{
        if (mtk_is_netsys_v2_or_greater(eth))
                return MTK_FOE_IB1_PACKET_TYPE_V2;

        return MTK_FOE_IB1_PACKET_TYPE;
}

static inline u32 mtk_get_ib1_pkt_type(struct mtk_eth *eth, u32 val)
{
        if (mtk_is_netsys_v2_or_greater(eth))
                return FIELD_GET(MTK_FOE_IB1_PACKET_TYPE_V2, val);

        return FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, val);
}

static inline u32 mtk_get_ib2_multicast_mask(struct mtk_eth *eth)
{
        if (mtk_is_netsys_v2_or_greater(eth))
                return MTK_FOE_IB2_MULTICAST_V2;

        return MTK_FOE_IB2_MULTICAST;
}

static inline bool mtk_interface_mode_is_xgmii(struct mtk_eth *eth,
                                               phy_interface_t interface)
{
        if (!mtk_is_netsys_v3_or_greater(eth))
                return false;

        switch (interface) {
        case PHY_INTERFACE_MODE_INTERNAL:
        case PHY_INTERFACE_MODE_USXGMII:
        case PHY_INTERFACE_MODE_10GBASER:
        case PHY_INTERFACE_MODE_5GBASER:
                return true;
        default:
                return false;
        }
}

/* read the hardware status register */
void mtk_stats_update_mac(struct mtk_mac *mac);

void mtk_w32(struct mtk_eth *eth, u32 val, unsigned reg);
u32 mtk_r32(struct mtk_eth *eth, unsigned reg);
u32 mtk_m32(struct mtk_eth *eth, u32 mask, u32 set, unsigned int reg);

int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id);
int mtk_gmac_2p5gphy_path_setup(struct mtk_eth *eth, int mac_id);
int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id);
int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id);

int mtk_eth_offload_init(struct mtk_eth *eth, u8 id);
int mtk_eth_setup_tc(struct net_device *dev, enum tc_setup_type type,
                     void *type_data);
int mtk_flow_offload_cmd(struct mtk_eth *eth, struct flow_cls_offload *cls,
                         int ppe_index);
void mtk_flow_offload_cleanup(struct mtk_eth *eth, struct list_head *list);
void mtk_eth_set_dma_device(struct mtk_eth *eth, struct device *dma_dev);


#endif /* MTK_ETH_H */