root/drivers/net/dsa/ocelot/felix_vsc9959.c
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/* Copyright 2017 Microsemi Corporation
 * Copyright 2018-2019 NXP
 */
#include <linux/fsl/enetc_mdio.h>
#include <soc/mscc/ocelot_qsys.h>
#include <soc/mscc/ocelot_vcap.h>
#include <soc/mscc/ocelot_ana.h>
#include <soc/mscc/ocelot_dev.h>
#include <soc/mscc/ocelot_ptp.h>
#include <soc/mscc/ocelot_sys.h>
#include <net/tc_act/tc_gate.h>
#include <soc/mscc/ocelot.h>
#include <linux/dsa/ocelot.h>
#include <linux/pcs-lynx.h>
#include <net/pkt_sched.h>
#include <linux/iopoll.h>
#include <linux/mdio.h>
#include <linux/of.h>
#include <linux/pci.h>
#include <linux/time.h>
#include "felix.h"

#define VSC9959_NUM_PORTS               6

#define VSC9959_TAS_GCL_ENTRY_MAX       63
#define VSC9959_TAS_MIN_GATE_LEN_NS     35
#define VSC9959_VCAP_POLICER_BASE       63
#define VSC9959_VCAP_POLICER_MAX        383
#define VSC9959_SWITCH_PCI_BAR          4
#define VSC9959_IMDIO_PCI_BAR           0

#define VSC9959_PORT_MODE_SERDES        (OCELOT_PORT_MODE_SGMII | \
                                         OCELOT_PORT_MODE_QSGMII | \
                                         OCELOT_PORT_MODE_1000BASEX | \
                                         OCELOT_PORT_MODE_2500BASEX | \
                                         OCELOT_PORT_MODE_USXGMII | \
                                         OCELOT_PORT_MODE_10G_QXGMII)

static const u32 vsc9959_port_modes[VSC9959_NUM_PORTS] = {
        VSC9959_PORT_MODE_SERDES,
        VSC9959_PORT_MODE_SERDES,
        VSC9959_PORT_MODE_SERDES,
        VSC9959_PORT_MODE_SERDES,
        OCELOT_PORT_MODE_INTERNAL,
        OCELOT_PORT_MODE_INTERNAL,
};

static const u32 vsc9959_ana_regmap[] = {
        REG(ANA_ADVLEARN,                       0x0089a0),
        REG(ANA_VLANMASK,                       0x0089a4),
        REG_RESERVED(ANA_PORT_B_DOMAIN),
        REG(ANA_ANAGEFIL,                       0x0089ac),
        REG(ANA_ANEVENTS,                       0x0089b0),
        REG(ANA_STORMLIMIT_BURST,               0x0089b4),
        REG(ANA_STORMLIMIT_CFG,                 0x0089b8),
        REG(ANA_ISOLATED_PORTS,                 0x0089c8),
        REG(ANA_COMMUNITY_PORTS,                0x0089cc),
        REG(ANA_AUTOAGE,                        0x0089d0),
        REG(ANA_MACTOPTIONS,                    0x0089d4),
        REG(ANA_LEARNDISC,                      0x0089d8),
        REG(ANA_AGENCTRL,                       0x0089dc),
        REG(ANA_MIRRORPORTS,                    0x0089e0),
        REG(ANA_EMIRRORPORTS,                   0x0089e4),
        REG(ANA_FLOODING,                       0x0089e8),
        REG(ANA_FLOODING_IPMC,                  0x008a08),
        REG(ANA_SFLOW_CFG,                      0x008a0c),
        REG(ANA_PORT_MODE,                      0x008a28),
        REG(ANA_CUT_THRU_CFG,                   0x008a48),
        REG(ANA_PGID_PGID,                      0x008400),
        REG(ANA_TABLES_ANMOVED,                 0x007f1c),
        REG(ANA_TABLES_MACHDATA,                0x007f20),
        REG(ANA_TABLES_MACLDATA,                0x007f24),
        REG(ANA_TABLES_STREAMDATA,              0x007f28),
        REG(ANA_TABLES_MACACCESS,               0x007f2c),
        REG(ANA_TABLES_MACTINDX,                0x007f30),
        REG(ANA_TABLES_VLANACCESS,              0x007f34),
        REG(ANA_TABLES_VLANTIDX,                0x007f38),
        REG(ANA_TABLES_ISDXACCESS,              0x007f3c),
        REG(ANA_TABLES_ISDXTIDX,                0x007f40),
        REG(ANA_TABLES_ENTRYLIM,                0x007f00),
        REG(ANA_TABLES_PTP_ID_HIGH,             0x007f44),
        REG(ANA_TABLES_PTP_ID_LOW,              0x007f48),
        REG(ANA_TABLES_STREAMACCESS,            0x007f4c),
        REG(ANA_TABLES_STREAMTIDX,              0x007f50),
        REG(ANA_TABLES_SEQ_HISTORY,             0x007f54),
        REG(ANA_TABLES_SEQ_MASK,                0x007f58),
        REG(ANA_TABLES_SFID_MASK,               0x007f5c),
        REG(ANA_TABLES_SFIDACCESS,              0x007f60),
        REG(ANA_TABLES_SFIDTIDX,                0x007f64),
        REG(ANA_MSTI_STATE,                     0x008600),
        REG(ANA_OAM_UPM_LM_CNT,                 0x008000),
        REG(ANA_SG_ACCESS_CTRL,                 0x008a64),
        REG(ANA_SG_CONFIG_REG_1,                0x007fb0),
        REG(ANA_SG_CONFIG_REG_2,                0x007fb4),
        REG(ANA_SG_CONFIG_REG_3,                0x007fb8),
        REG(ANA_SG_CONFIG_REG_4,                0x007fbc),
        REG(ANA_SG_CONFIG_REG_5,                0x007fc0),
        REG(ANA_SG_GCL_GS_CONFIG,               0x007f80),
        REG(ANA_SG_GCL_TI_CONFIG,               0x007f90),
        REG(ANA_SG_STATUS_REG_1,                0x008980),
        REG(ANA_SG_STATUS_REG_2,                0x008984),
        REG(ANA_SG_STATUS_REG_3,                0x008988),
        REG(ANA_PORT_VLAN_CFG,                  0x007800),
        REG(ANA_PORT_DROP_CFG,                  0x007804),
        REG(ANA_PORT_QOS_CFG,                   0x007808),
        REG(ANA_PORT_VCAP_CFG,                  0x00780c),
        REG(ANA_PORT_VCAP_S1_KEY_CFG,           0x007810),
        REG(ANA_PORT_VCAP_S2_CFG,               0x00781c),
        REG(ANA_PORT_PCP_DEI_MAP,               0x007820),
        REG(ANA_PORT_CPU_FWD_CFG,               0x007860),
        REG(ANA_PORT_CPU_FWD_BPDU_CFG,          0x007864),
        REG(ANA_PORT_CPU_FWD_GARP_CFG,          0x007868),
        REG(ANA_PORT_CPU_FWD_CCM_CFG,           0x00786c),
        REG(ANA_PORT_PORT_CFG,                  0x007870),
        REG(ANA_PORT_POL_CFG,                   0x007874),
        REG(ANA_PORT_PTP_CFG,                   0x007878),
        REG(ANA_PORT_PTP_DLY1_CFG,              0x00787c),
        REG(ANA_PORT_PTP_DLY2_CFG,              0x007880),
        REG(ANA_PORT_SFID_CFG,                  0x007884),
        REG(ANA_PFC_PFC_CFG,                    0x008800),
        REG_RESERVED(ANA_PFC_PFC_TIMER),
        REG_RESERVED(ANA_IPT_OAM_MEP_CFG),
        REG_RESERVED(ANA_IPT_IPT),
        REG_RESERVED(ANA_PPT_PPT),
        REG_RESERVED(ANA_FID_MAP_FID_MAP),
        REG(ANA_AGGR_CFG,                       0x008a68),
        REG(ANA_CPUQ_CFG,                       0x008a6c),
        REG_RESERVED(ANA_CPUQ_CFG2),
        REG(ANA_CPUQ_8021_CFG,                  0x008a74),
        REG(ANA_DSCP_CFG,                       0x008ab4),
        REG(ANA_DSCP_REWR_CFG,                  0x008bb4),
        REG(ANA_VCAP_RNG_TYPE_CFG,              0x008bf4),
        REG(ANA_VCAP_RNG_VAL_CFG,               0x008c14),
        REG_RESERVED(ANA_VRAP_CFG),
        REG_RESERVED(ANA_VRAP_HDR_DATA),
        REG_RESERVED(ANA_VRAP_HDR_MASK),
        REG(ANA_DISCARD_CFG,                    0x008c40),
        REG(ANA_FID_CFG,                        0x008c44),
        REG(ANA_POL_PIR_CFG,                    0x004000),
        REG(ANA_POL_CIR_CFG,                    0x004004),
        REG(ANA_POL_MODE_CFG,                   0x004008),
        REG(ANA_POL_PIR_STATE,                  0x00400c),
        REG(ANA_POL_CIR_STATE,                  0x004010),
        REG_RESERVED(ANA_POL_STATE),
        REG(ANA_POL_FLOWC,                      0x008c48),
        REG(ANA_POL_HYST,                       0x008cb4),
        REG_RESERVED(ANA_POL_MISC_CFG),
};

static const u32 vsc9959_qs_regmap[] = {
        REG(QS_XTR_GRP_CFG,                     0x000000),
        REG(QS_XTR_RD,                          0x000008),
        REG(QS_XTR_FRM_PRUNING,                 0x000010),
        REG(QS_XTR_FLUSH,                       0x000018),
        REG(QS_XTR_DATA_PRESENT,                0x00001c),
        REG(QS_XTR_CFG,                         0x000020),
        REG(QS_INJ_GRP_CFG,                     0x000024),
        REG(QS_INJ_WR,                          0x00002c),
        REG(QS_INJ_CTRL,                        0x000034),
        REG(QS_INJ_STATUS,                      0x00003c),
        REG(QS_INJ_ERR,                         0x000040),
        REG_RESERVED(QS_INH_DBG),
};

static const u32 vsc9959_vcap_regmap[] = {
        /* VCAP_CORE_CFG */
        REG(VCAP_CORE_UPDATE_CTRL,              0x000000),
        REG(VCAP_CORE_MV_CFG,                   0x000004),
        /* VCAP_CORE_CACHE */
        REG(VCAP_CACHE_ENTRY_DAT,               0x000008),
        REG(VCAP_CACHE_MASK_DAT,                0x000108),
        REG(VCAP_CACHE_ACTION_DAT,              0x000208),
        REG(VCAP_CACHE_CNT_DAT,                 0x000308),
        REG(VCAP_CACHE_TG_DAT,                  0x000388),
        /* VCAP_CONST */
        REG(VCAP_CONST_VCAP_VER,                0x000398),
        REG(VCAP_CONST_ENTRY_WIDTH,             0x00039c),
        REG(VCAP_CONST_ENTRY_CNT,               0x0003a0),
        REG(VCAP_CONST_ENTRY_SWCNT,             0x0003a4),
        REG(VCAP_CONST_ENTRY_TG_WIDTH,          0x0003a8),
        REG(VCAP_CONST_ACTION_DEF_CNT,          0x0003ac),
        REG(VCAP_CONST_ACTION_WIDTH,            0x0003b0),
        REG(VCAP_CONST_CNT_WIDTH,               0x0003b4),
        REG(VCAP_CONST_CORE_CNT,                0x0003b8),
        REG(VCAP_CONST_IF_CNT,                  0x0003bc),
};

static const u32 vsc9959_qsys_regmap[] = {
        REG(QSYS_PORT_MODE,                     0x00f460),
        REG(QSYS_SWITCH_PORT_MODE,              0x00f480),
        REG(QSYS_STAT_CNT_CFG,                  0x00f49c),
        REG(QSYS_EEE_CFG,                       0x00f4a0),
        REG(QSYS_EEE_THRES,                     0x00f4b8),
        REG(QSYS_IGR_NO_SHARING,                0x00f4bc),
        REG(QSYS_EGR_NO_SHARING,                0x00f4c0),
        REG(QSYS_SW_STATUS,                     0x00f4c4),
        REG(QSYS_EXT_CPU_CFG,                   0x00f4e0),
        REG_RESERVED(QSYS_PAD_CFG),
        REG(QSYS_CPU_GROUP_MAP,                 0x00f4e8),
        REG_RESERVED(QSYS_QMAP),
        REG_RESERVED(QSYS_ISDX_SGRP),
        REG_RESERVED(QSYS_TIMED_FRAME_ENTRY),
        REG(QSYS_TFRM_MISC,                     0x00f50c),
        REG(QSYS_TFRM_PORT_DLY,                 0x00f510),
        REG(QSYS_TFRM_TIMER_CFG_1,              0x00f514),
        REG(QSYS_TFRM_TIMER_CFG_2,              0x00f518),
        REG(QSYS_TFRM_TIMER_CFG_3,              0x00f51c),
        REG(QSYS_TFRM_TIMER_CFG_4,              0x00f520),
        REG(QSYS_TFRM_TIMER_CFG_5,              0x00f524),
        REG(QSYS_TFRM_TIMER_CFG_6,              0x00f528),
        REG(QSYS_TFRM_TIMER_CFG_7,              0x00f52c),
        REG(QSYS_TFRM_TIMER_CFG_8,              0x00f530),
        REG(QSYS_RED_PROFILE,                   0x00f534),
        REG(QSYS_RES_QOS_MODE,                  0x00f574),
        REG(QSYS_RES_CFG,                       0x00c000),
        REG(QSYS_RES_STAT,                      0x00c004),
        REG(QSYS_EGR_DROP_MODE,                 0x00f578),
        REG(QSYS_EQ_CTRL,                       0x00f57c),
        REG_RESERVED(QSYS_EVENTS_CORE),
        REG(QSYS_QMAXSDU_CFG_0,                 0x00f584),
        REG(QSYS_QMAXSDU_CFG_1,                 0x00f5a0),
        REG(QSYS_QMAXSDU_CFG_2,                 0x00f5bc),
        REG(QSYS_QMAXSDU_CFG_3,                 0x00f5d8),
        REG(QSYS_QMAXSDU_CFG_4,                 0x00f5f4),
        REG(QSYS_QMAXSDU_CFG_5,                 0x00f610),
        REG(QSYS_QMAXSDU_CFG_6,                 0x00f62c),
        REG(QSYS_QMAXSDU_CFG_7,                 0x00f648),
        REG(QSYS_PREEMPTION_CFG,                0x00f664),
        REG(QSYS_CIR_CFG,                       0x000000),
        REG(QSYS_EIR_CFG,                       0x000004),
        REG(QSYS_SE_CFG,                        0x000008),
        REG(QSYS_SE_DWRR_CFG,                   0x00000c),
        REG_RESERVED(QSYS_SE_CONNECT),
        REG(QSYS_SE_DLB_SENSE,                  0x000040),
        REG(QSYS_CIR_STATE,                     0x000044),
        REG(QSYS_EIR_STATE,                     0x000048),
        REG_RESERVED(QSYS_SE_STATE),
        REG(QSYS_HSCH_MISC_CFG,                 0x00f67c),
        REG(QSYS_TAG_CONFIG,                    0x00f680),
        REG(QSYS_TAS_PARAM_CFG_CTRL,            0x00f698),
        REG(QSYS_PORT_MAX_SDU,                  0x00f69c),
        REG(QSYS_PARAM_CFG_REG_1,               0x00f440),
        REG(QSYS_PARAM_CFG_REG_2,               0x00f444),
        REG(QSYS_PARAM_CFG_REG_3,               0x00f448),
        REG(QSYS_PARAM_CFG_REG_4,               0x00f44c),
        REG(QSYS_PARAM_CFG_REG_5,               0x00f450),
        REG(QSYS_GCL_CFG_REG_1,                 0x00f454),
        REG(QSYS_GCL_CFG_REG_2,                 0x00f458),
        REG(QSYS_PARAM_STATUS_REG_1,            0x00f400),
        REG(QSYS_PARAM_STATUS_REG_2,            0x00f404),
        REG(QSYS_PARAM_STATUS_REG_3,            0x00f408),
        REG(QSYS_PARAM_STATUS_REG_4,            0x00f40c),
        REG(QSYS_PARAM_STATUS_REG_5,            0x00f410),
        REG(QSYS_PARAM_STATUS_REG_6,            0x00f414),
        REG(QSYS_PARAM_STATUS_REG_7,            0x00f418),
        REG(QSYS_PARAM_STATUS_REG_8,            0x00f41c),
        REG(QSYS_PARAM_STATUS_REG_9,            0x00f420),
        REG(QSYS_GCL_STATUS_REG_1,              0x00f424),
        REG(QSYS_GCL_STATUS_REG_2,              0x00f428),
};

static const u32 vsc9959_rew_regmap[] = {
        REG(REW_PORT_VLAN_CFG,                  0x000000),
        REG(REW_TAG_CFG,                        0x000004),
        REG(REW_PORT_CFG,                       0x000008),
        REG(REW_DSCP_CFG,                       0x00000c),
        REG(REW_PCP_DEI_QOS_MAP_CFG,            0x000010),
        REG(REW_PTP_CFG,                        0x000050),
        REG(REW_PTP_DLY1_CFG,                   0x000054),
        REG(REW_RED_TAG_CFG,                    0x000058),
        REG(REW_DSCP_REMAP_DP1_CFG,             0x000410),
        REG(REW_DSCP_REMAP_CFG,                 0x000510),
        REG_RESERVED(REW_STAT_CFG),
        REG_RESERVED(REW_REW_STICKY),
        REG_RESERVED(REW_PPT),
};

static const u32 vsc9959_sys_regmap[] = {
        REG(SYS_COUNT_RX_OCTETS,                0x000000),
        REG(SYS_COUNT_RX_UNICAST,               0x000004),
        REG(SYS_COUNT_RX_MULTICAST,             0x000008),
        REG(SYS_COUNT_RX_BROADCAST,             0x00000c),
        REG(SYS_COUNT_RX_SHORTS,                0x000010),
        REG(SYS_COUNT_RX_FRAGMENTS,             0x000014),
        REG(SYS_COUNT_RX_JABBERS,               0x000018),
        REG(SYS_COUNT_RX_CRC_ALIGN_ERRS,        0x00001c),
        REG(SYS_COUNT_RX_SYM_ERRS,              0x000020),
        REG(SYS_COUNT_RX_64,                    0x000024),
        REG(SYS_COUNT_RX_65_127,                0x000028),
        REG(SYS_COUNT_RX_128_255,               0x00002c),
        REG(SYS_COUNT_RX_256_511,               0x000030),
        REG(SYS_COUNT_RX_512_1023,              0x000034),
        REG(SYS_COUNT_RX_1024_1526,             0x000038),
        REG(SYS_COUNT_RX_1527_MAX,              0x00003c),
        REG(SYS_COUNT_RX_PAUSE,                 0x000040),
        REG(SYS_COUNT_RX_CONTROL,               0x000044),
        REG(SYS_COUNT_RX_LONGS,                 0x000048),
        REG(SYS_COUNT_RX_CLASSIFIED_DROPS,      0x00004c),
        REG(SYS_COUNT_RX_RED_PRIO_0,            0x000050),
        REG(SYS_COUNT_RX_RED_PRIO_1,            0x000054),
        REG(SYS_COUNT_RX_RED_PRIO_2,            0x000058),
        REG(SYS_COUNT_RX_RED_PRIO_3,            0x00005c),
        REG(SYS_COUNT_RX_RED_PRIO_4,            0x000060),
        REG(SYS_COUNT_RX_RED_PRIO_5,            0x000064),
        REG(SYS_COUNT_RX_RED_PRIO_6,            0x000068),
        REG(SYS_COUNT_RX_RED_PRIO_7,            0x00006c),
        REG(SYS_COUNT_RX_YELLOW_PRIO_0,         0x000070),
        REG(SYS_COUNT_RX_YELLOW_PRIO_1,         0x000074),
        REG(SYS_COUNT_RX_YELLOW_PRIO_2,         0x000078),
        REG(SYS_COUNT_RX_YELLOW_PRIO_3,         0x00007c),
        REG(SYS_COUNT_RX_YELLOW_PRIO_4,         0x000080),
        REG(SYS_COUNT_RX_YELLOW_PRIO_5,         0x000084),
        REG(SYS_COUNT_RX_YELLOW_PRIO_6,         0x000088),
        REG(SYS_COUNT_RX_YELLOW_PRIO_7,         0x00008c),
        REG(SYS_COUNT_RX_GREEN_PRIO_0,          0x000090),
        REG(SYS_COUNT_RX_GREEN_PRIO_1,          0x000094),
        REG(SYS_COUNT_RX_GREEN_PRIO_2,          0x000098),
        REG(SYS_COUNT_RX_GREEN_PRIO_3,          0x00009c),
        REG(SYS_COUNT_RX_GREEN_PRIO_4,          0x0000a0),
        REG(SYS_COUNT_RX_GREEN_PRIO_5,          0x0000a4),
        REG(SYS_COUNT_RX_GREEN_PRIO_6,          0x0000a8),
        REG(SYS_COUNT_RX_GREEN_PRIO_7,          0x0000ac),
        REG(SYS_COUNT_RX_ASSEMBLY_ERRS,         0x0000b0),
        REG(SYS_COUNT_RX_SMD_ERRS,              0x0000b4),
        REG(SYS_COUNT_RX_ASSEMBLY_OK,           0x0000b8),
        REG(SYS_COUNT_RX_MERGE_FRAGMENTS,       0x0000bc),
        REG(SYS_COUNT_RX_PMAC_OCTETS,           0x0000c0),
        REG(SYS_COUNT_RX_PMAC_UNICAST,          0x0000c4),
        REG(SYS_COUNT_RX_PMAC_MULTICAST,        0x0000c8),
        REG(SYS_COUNT_RX_PMAC_BROADCAST,        0x0000cc),
        REG(SYS_COUNT_RX_PMAC_SHORTS,           0x0000d0),
        REG(SYS_COUNT_RX_PMAC_FRAGMENTS,        0x0000d4),
        REG(SYS_COUNT_RX_PMAC_JABBERS,          0x0000d8),
        REG(SYS_COUNT_RX_PMAC_CRC_ALIGN_ERRS,   0x0000dc),
        REG(SYS_COUNT_RX_PMAC_SYM_ERRS,         0x0000e0),
        REG(SYS_COUNT_RX_PMAC_64,               0x0000e4),
        REG(SYS_COUNT_RX_PMAC_65_127,           0x0000e8),
        REG(SYS_COUNT_RX_PMAC_128_255,          0x0000ec),
        REG(SYS_COUNT_RX_PMAC_256_511,          0x0000f0),
        REG(SYS_COUNT_RX_PMAC_512_1023,         0x0000f4),
        REG(SYS_COUNT_RX_PMAC_1024_1526,        0x0000f8),
        REG(SYS_COUNT_RX_PMAC_1527_MAX,         0x0000fc),
        REG(SYS_COUNT_RX_PMAC_PAUSE,            0x000100),
        REG(SYS_COUNT_RX_PMAC_CONTROL,          0x000104),
        REG(SYS_COUNT_RX_PMAC_LONGS,            0x000108),
        REG(SYS_COUNT_TX_OCTETS,                0x000200),
        REG(SYS_COUNT_TX_UNICAST,               0x000204),
        REG(SYS_COUNT_TX_MULTICAST,             0x000208),
        REG(SYS_COUNT_TX_BROADCAST,             0x00020c),
        REG(SYS_COUNT_TX_COLLISION,             0x000210),
        REG(SYS_COUNT_TX_DROPS,                 0x000214),
        REG(SYS_COUNT_TX_PAUSE,                 0x000218),
        REG(SYS_COUNT_TX_64,                    0x00021c),
        REG(SYS_COUNT_TX_65_127,                0x000220),
        REG(SYS_COUNT_TX_128_255,               0x000224),
        REG(SYS_COUNT_TX_256_511,               0x000228),
        REG(SYS_COUNT_TX_512_1023,              0x00022c),
        REG(SYS_COUNT_TX_1024_1526,             0x000230),
        REG(SYS_COUNT_TX_1527_MAX,              0x000234),
        REG(SYS_COUNT_TX_YELLOW_PRIO_0,         0x000238),
        REG(SYS_COUNT_TX_YELLOW_PRIO_1,         0x00023c),
        REG(SYS_COUNT_TX_YELLOW_PRIO_2,         0x000240),
        REG(SYS_COUNT_TX_YELLOW_PRIO_3,         0x000244),
        REG(SYS_COUNT_TX_YELLOW_PRIO_4,         0x000248),
        REG(SYS_COUNT_TX_YELLOW_PRIO_5,         0x00024c),
        REG(SYS_COUNT_TX_YELLOW_PRIO_6,         0x000250),
        REG(SYS_COUNT_TX_YELLOW_PRIO_7,         0x000254),
        REG(SYS_COUNT_TX_GREEN_PRIO_0,          0x000258),
        REG(SYS_COUNT_TX_GREEN_PRIO_1,          0x00025c),
        REG(SYS_COUNT_TX_GREEN_PRIO_2,          0x000260),
        REG(SYS_COUNT_TX_GREEN_PRIO_3,          0x000264),
        REG(SYS_COUNT_TX_GREEN_PRIO_4,          0x000268),
        REG(SYS_COUNT_TX_GREEN_PRIO_5,          0x00026c),
        REG(SYS_COUNT_TX_GREEN_PRIO_6,          0x000270),
        REG(SYS_COUNT_TX_GREEN_PRIO_7,          0x000274),
        REG(SYS_COUNT_TX_AGED,                  0x000278),
        REG(SYS_COUNT_TX_MM_HOLD,               0x00027c),
        REG(SYS_COUNT_TX_MERGE_FRAGMENTS,       0x000280),
        REG(SYS_COUNT_TX_PMAC_OCTETS,           0x000284),
        REG(SYS_COUNT_TX_PMAC_UNICAST,          0x000288),
        REG(SYS_COUNT_TX_PMAC_MULTICAST,        0x00028c),
        REG(SYS_COUNT_TX_PMAC_BROADCAST,        0x000290),
        REG(SYS_COUNT_TX_PMAC_PAUSE,            0x000294),
        REG(SYS_COUNT_TX_PMAC_64,               0x000298),
        REG(SYS_COUNT_TX_PMAC_65_127,           0x00029c),
        REG(SYS_COUNT_TX_PMAC_128_255,          0x0002a0),
        REG(SYS_COUNT_TX_PMAC_256_511,          0x0002a4),
        REG(SYS_COUNT_TX_PMAC_512_1023,         0x0002a8),
        REG(SYS_COUNT_TX_PMAC_1024_1526,        0x0002ac),
        REG(SYS_COUNT_TX_PMAC_1527_MAX,         0x0002b0),
        REG(SYS_COUNT_DROP_LOCAL,               0x000400),
        REG(SYS_COUNT_DROP_TAIL,                0x000404),
        REG(SYS_COUNT_DROP_YELLOW_PRIO_0,       0x000408),
        REG(SYS_COUNT_DROP_YELLOW_PRIO_1,       0x00040c),
        REG(SYS_COUNT_DROP_YELLOW_PRIO_2,       0x000410),
        REG(SYS_COUNT_DROP_YELLOW_PRIO_3,       0x000414),
        REG(SYS_COUNT_DROP_YELLOW_PRIO_4,       0x000418),
        REG(SYS_COUNT_DROP_YELLOW_PRIO_5,       0x00041c),
        REG(SYS_COUNT_DROP_YELLOW_PRIO_6,       0x000420),
        REG(SYS_COUNT_DROP_YELLOW_PRIO_7,       0x000424),
        REG(SYS_COUNT_DROP_GREEN_PRIO_0,        0x000428),
        REG(SYS_COUNT_DROP_GREEN_PRIO_1,        0x00042c),
        REG(SYS_COUNT_DROP_GREEN_PRIO_2,        0x000430),
        REG(SYS_COUNT_DROP_GREEN_PRIO_3,        0x000434),
        REG(SYS_COUNT_DROP_GREEN_PRIO_4,        0x000438),
        REG(SYS_COUNT_DROP_GREEN_PRIO_5,        0x00043c),
        REG(SYS_COUNT_DROP_GREEN_PRIO_6,        0x000440),
        REG(SYS_COUNT_DROP_GREEN_PRIO_7,        0x000444),
        REG(SYS_COUNT_SF_MATCHING_FRAMES,       0x000800),
        REG(SYS_COUNT_SF_NOT_PASSING_FRAMES,    0x000804),
        REG(SYS_COUNT_SF_NOT_PASSING_SDU,       0x000808),
        REG(SYS_COUNT_SF_RED_FRAMES,            0x00080c),
        REG(SYS_RESET_CFG,                      0x000e00),
        REG(SYS_SR_ETYPE_CFG,                   0x000e04),
        REG(SYS_VLAN_ETYPE_CFG,                 0x000e08),
        REG(SYS_PORT_MODE,                      0x000e0c),
        REG(SYS_FRONT_PORT_MODE,                0x000e2c),
        REG(SYS_FRM_AGING,                      0x000e44),
        REG(SYS_STAT_CFG,                       0x000e48),
        REG(SYS_SW_STATUS,                      0x000e4c),
        REG_RESERVED(SYS_MISC_CFG),
        REG(SYS_REW_MAC_HIGH_CFG,               0x000e6c),
        REG(SYS_REW_MAC_LOW_CFG,                0x000e84),
        REG(SYS_TIMESTAMP_OFFSET,               0x000e9c),
        REG(SYS_PAUSE_CFG,                      0x000ea0),
        REG(SYS_PAUSE_TOT_CFG,                  0x000ebc),
        REG(SYS_ATOP,                           0x000ec0),
        REG(SYS_ATOP_TOT_CFG,                   0x000edc),
        REG(SYS_MAC_FC_CFG,                     0x000ee0),
        REG(SYS_MMGT,                           0x000ef8),
        REG_RESERVED(SYS_MMGT_FAST),
        REG_RESERVED(SYS_EVENTS_DIF),
        REG_RESERVED(SYS_EVENTS_CORE),
        REG(SYS_PTP_STATUS,                     0x000f14),
        REG(SYS_PTP_TXSTAMP,                    0x000f18),
        REG(SYS_PTP_NXT,                        0x000f1c),
        REG(SYS_PTP_CFG,                        0x000f20),
        REG(SYS_RAM_INIT,                       0x000f24),
        REG_RESERVED(SYS_CM_ADDR),
        REG_RESERVED(SYS_CM_DATA_WR),
        REG_RESERVED(SYS_CM_DATA_RD),
        REG_RESERVED(SYS_CM_OP),
        REG_RESERVED(SYS_CM_DATA),
};

static const u32 vsc9959_ptp_regmap[] = {
        REG(PTP_PIN_CFG,                        0x000000),
        REG(PTP_PIN_TOD_SEC_MSB,                0x000004),
        REG(PTP_PIN_TOD_SEC_LSB,                0x000008),
        REG(PTP_PIN_TOD_NSEC,                   0x00000c),
        REG(PTP_PIN_WF_HIGH_PERIOD,             0x000014),
        REG(PTP_PIN_WF_LOW_PERIOD,              0x000018),
        REG(PTP_CFG_MISC,                       0x0000a0),
        REG(PTP_CLK_CFG_ADJ_CFG,                0x0000a4),
        REG(PTP_CLK_CFG_ADJ_FREQ,               0x0000a8),
};

static const u32 vsc9959_gcb_regmap[] = {
        REG(GCB_SOFT_RST,                       0x000004),
};

static const u32 vsc9959_dev_gmii_regmap[] = {
        REG(DEV_CLOCK_CFG,                      0x0),
        REG(DEV_PORT_MISC,                      0x4),
        REG(DEV_EVENTS,                         0x8),
        REG(DEV_EEE_CFG,                        0xc),
        REG(DEV_RX_PATH_DELAY,                  0x10),
        REG(DEV_TX_PATH_DELAY,                  0x14),
        REG(DEV_PTP_PREDICT_CFG,                0x18),
        REG(DEV_MAC_ENA_CFG,                    0x1c),
        REG(DEV_MAC_MODE_CFG,                   0x20),
        REG(DEV_MAC_MAXLEN_CFG,                 0x24),
        REG(DEV_MAC_TAGS_CFG,                   0x28),
        REG(DEV_MAC_ADV_CHK_CFG,                0x2c),
        REG(DEV_MAC_IFG_CFG,                    0x30),
        REG(DEV_MAC_HDX_CFG,                    0x34),
        REG(DEV_MAC_DBG_CFG,                    0x38),
        REG(DEV_MAC_FC_MAC_LOW_CFG,             0x3c),
        REG(DEV_MAC_FC_MAC_HIGH_CFG,            0x40),
        REG(DEV_MAC_STICKY,                     0x44),
        REG(DEV_MM_ENABLE_CONFIG,               0x48),
        REG(DEV_MM_VERIF_CONFIG,                0x4C),
        REG(DEV_MM_STATUS,                      0x50),
        REG_RESERVED(PCS1G_CFG),
        REG_RESERVED(PCS1G_MODE_CFG),
        REG_RESERVED(PCS1G_SD_CFG),
        REG_RESERVED(PCS1G_ANEG_CFG),
        REG_RESERVED(PCS1G_ANEG_NP_CFG),
        REG_RESERVED(PCS1G_LB_CFG),
        REG_RESERVED(PCS1G_DBG_CFG),
        REG_RESERVED(PCS1G_CDET_CFG),
        REG_RESERVED(PCS1G_ANEG_STATUS),
        REG_RESERVED(PCS1G_ANEG_NP_STATUS),
        REG_RESERVED(PCS1G_LINK_STATUS),
        REG_RESERVED(PCS1G_LINK_DOWN_CNT),
        REG_RESERVED(PCS1G_STICKY),
        REG_RESERVED(PCS1G_DEBUG_STATUS),
        REG_RESERVED(PCS1G_LPI_CFG),
        REG_RESERVED(PCS1G_LPI_WAKE_ERROR_CNT),
        REG_RESERVED(PCS1G_LPI_STATUS),
        REG_RESERVED(PCS1G_TSTPAT_MODE_CFG),
        REG_RESERVED(PCS1G_TSTPAT_STATUS),
        REG_RESERVED(DEV_PCS_FX100_CFG),
        REG_RESERVED(DEV_PCS_FX100_STATUS),
};

static const u32 *vsc9959_regmap[TARGET_MAX] = {
        [ANA]   = vsc9959_ana_regmap,
        [QS]    = vsc9959_qs_regmap,
        [QSYS]  = vsc9959_qsys_regmap,
        [REW]   = vsc9959_rew_regmap,
        [SYS]   = vsc9959_sys_regmap,
        [S0]    = vsc9959_vcap_regmap,
        [S1]    = vsc9959_vcap_regmap,
        [S2]    = vsc9959_vcap_regmap,
        [PTP]   = vsc9959_ptp_regmap,
        [GCB]   = vsc9959_gcb_regmap,
        [DEV_GMII] = vsc9959_dev_gmii_regmap,
};

/* Addresses are relative to the PCI device's base address */
static const struct resource vsc9959_resources[] = {
        DEFINE_RES_MEM_NAMED(0x0010000, 0x0010000, "sys"),
        DEFINE_RES_MEM_NAMED(0x0030000, 0x0010000, "rew"),
        DEFINE_RES_MEM_NAMED(0x0040000, 0x0000400, "s0"),
        DEFINE_RES_MEM_NAMED(0x0050000, 0x0000400, "s1"),
        DEFINE_RES_MEM_NAMED(0x0060000, 0x0000400, "s2"),
        DEFINE_RES_MEM_NAMED(0x0070000, 0x0000200, "devcpu_gcb"),
        DEFINE_RES_MEM_NAMED(0x0080000, 0x0000100, "qs"),
        DEFINE_RES_MEM_NAMED(0x0090000, 0x00000cc, "ptp"),
        DEFINE_RES_MEM_NAMED(0x0100000, 0x0010000, "port0"),
        DEFINE_RES_MEM_NAMED(0x0110000, 0x0010000, "port1"),
        DEFINE_RES_MEM_NAMED(0x0120000, 0x0010000, "port2"),
        DEFINE_RES_MEM_NAMED(0x0130000, 0x0010000, "port3"),
        DEFINE_RES_MEM_NAMED(0x0140000, 0x0010000, "port4"),
        DEFINE_RES_MEM_NAMED(0x0150000, 0x0010000, "port5"),
        DEFINE_RES_MEM_NAMED(0x0200000, 0x0020000, "qsys"),
        DEFINE_RES_MEM_NAMED(0x0280000, 0x0010000, "ana"),
};

static const char * const vsc9959_resource_names[TARGET_MAX] = {
        [SYS] = "sys",
        [REW] = "rew",
        [S0] = "s0",
        [S1] = "s1",
        [S2] = "s2",
        [GCB] = "devcpu_gcb",
        [QS] = "qs",
        [PTP] = "ptp",
        [QSYS] = "qsys",
        [ANA] = "ana",
};

/* Port MAC 0 Internal MDIO bus through which the SerDes acting as an
 * SGMII/QSGMII MAC PCS can be found.
 */
static const struct resource vsc9959_imdio_res =
        DEFINE_RES_MEM_NAMED(0x8030, 0x10, "imdio");

static const struct reg_field vsc9959_regfields[REGFIELD_MAX] = {
        [ANA_ADVLEARN_VLAN_CHK] = REG_FIELD(ANA_ADVLEARN, 6, 6),
        [ANA_ADVLEARN_LEARN_MIRROR] = REG_FIELD(ANA_ADVLEARN, 0, 5),
        [ANA_ANEVENTS_FLOOD_DISCARD] = REG_FIELD(ANA_ANEVENTS, 30, 30),
        [ANA_ANEVENTS_AUTOAGE] = REG_FIELD(ANA_ANEVENTS, 26, 26),
        [ANA_ANEVENTS_STORM_DROP] = REG_FIELD(ANA_ANEVENTS, 24, 24),
        [ANA_ANEVENTS_LEARN_DROP] = REG_FIELD(ANA_ANEVENTS, 23, 23),
        [ANA_ANEVENTS_AGED_ENTRY] = REG_FIELD(ANA_ANEVENTS, 22, 22),
        [ANA_ANEVENTS_CPU_LEARN_FAILED] = REG_FIELD(ANA_ANEVENTS, 21, 21),
        [ANA_ANEVENTS_AUTO_LEARN_FAILED] = REG_FIELD(ANA_ANEVENTS, 20, 20),
        [ANA_ANEVENTS_LEARN_REMOVE] = REG_FIELD(ANA_ANEVENTS, 19, 19),
        [ANA_ANEVENTS_AUTO_LEARNED] = REG_FIELD(ANA_ANEVENTS, 18, 18),
        [ANA_ANEVENTS_AUTO_MOVED] = REG_FIELD(ANA_ANEVENTS, 17, 17),
        [ANA_ANEVENTS_CLASSIFIED_DROP] = REG_FIELD(ANA_ANEVENTS, 15, 15),
        [ANA_ANEVENTS_CLASSIFIED_COPY] = REG_FIELD(ANA_ANEVENTS, 14, 14),
        [ANA_ANEVENTS_VLAN_DISCARD] = REG_FIELD(ANA_ANEVENTS, 13, 13),
        [ANA_ANEVENTS_FWD_DISCARD] = REG_FIELD(ANA_ANEVENTS, 12, 12),
        [ANA_ANEVENTS_MULTICAST_FLOOD] = REG_FIELD(ANA_ANEVENTS, 11, 11),
        [ANA_ANEVENTS_UNICAST_FLOOD] = REG_FIELD(ANA_ANEVENTS, 10, 10),
        [ANA_ANEVENTS_DEST_KNOWN] = REG_FIELD(ANA_ANEVENTS, 9, 9),
        [ANA_ANEVENTS_BUCKET3_MATCH] = REG_FIELD(ANA_ANEVENTS, 8, 8),
        [ANA_ANEVENTS_BUCKET2_MATCH] = REG_FIELD(ANA_ANEVENTS, 7, 7),
        [ANA_ANEVENTS_BUCKET1_MATCH] = REG_FIELD(ANA_ANEVENTS, 6, 6),
        [ANA_ANEVENTS_BUCKET0_MATCH] = REG_FIELD(ANA_ANEVENTS, 5, 5),
        [ANA_ANEVENTS_CPU_OPERATION] = REG_FIELD(ANA_ANEVENTS, 4, 4),
        [ANA_ANEVENTS_DMAC_LOOKUP] = REG_FIELD(ANA_ANEVENTS, 3, 3),
        [ANA_ANEVENTS_SMAC_LOOKUP] = REG_FIELD(ANA_ANEVENTS, 2, 2),
        [ANA_ANEVENTS_SEQ_GEN_ERR_0] = REG_FIELD(ANA_ANEVENTS, 1, 1),
        [ANA_ANEVENTS_SEQ_GEN_ERR_1] = REG_FIELD(ANA_ANEVENTS, 0, 0),
        [ANA_TABLES_MACACCESS_B_DOM] = REG_FIELD(ANA_TABLES_MACACCESS, 16, 16),
        [ANA_TABLES_MACTINDX_BUCKET] = REG_FIELD(ANA_TABLES_MACTINDX, 11, 12),
        [ANA_TABLES_MACTINDX_M_INDEX] = REG_FIELD(ANA_TABLES_MACTINDX, 0, 10),
        [SYS_RESET_CFG_CORE_ENA] = REG_FIELD(SYS_RESET_CFG, 0, 0),
        [GCB_SOFT_RST_SWC_RST] = REG_FIELD(GCB_SOFT_RST, 0, 0),
        /* Replicated per number of ports (7), register size 4 per port */
        [QSYS_SWITCH_PORT_MODE_PORT_ENA] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 14, 14, 7, 4),
        [QSYS_SWITCH_PORT_MODE_SCH_NEXT_CFG] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 11, 13, 7, 4),
        [QSYS_SWITCH_PORT_MODE_YEL_RSRVD] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 10, 10, 7, 4),
        [QSYS_SWITCH_PORT_MODE_INGRESS_DROP_MODE] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 9, 9, 7, 4),
        [QSYS_SWITCH_PORT_MODE_TX_PFC_ENA] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 1, 8, 7, 4),
        [QSYS_SWITCH_PORT_MODE_TX_PFC_MODE] = REG_FIELD_ID(QSYS_SWITCH_PORT_MODE, 0, 0, 7, 4),
        [SYS_PORT_MODE_DATA_WO_TS] = REG_FIELD_ID(SYS_PORT_MODE, 5, 6, 7, 4),
        [SYS_PORT_MODE_INCL_INJ_HDR] = REG_FIELD_ID(SYS_PORT_MODE, 3, 4, 7, 4),
        [SYS_PORT_MODE_INCL_XTR_HDR] = REG_FIELD_ID(SYS_PORT_MODE, 1, 2, 7, 4),
        [SYS_PORT_MODE_INCL_HDR_ERR] = REG_FIELD_ID(SYS_PORT_MODE, 0, 0, 7, 4),
        [SYS_PAUSE_CFG_PAUSE_START] = REG_FIELD_ID(SYS_PAUSE_CFG, 10, 18, 7, 4),
        [SYS_PAUSE_CFG_PAUSE_STOP] = REG_FIELD_ID(SYS_PAUSE_CFG, 1, 9, 7, 4),
        [SYS_PAUSE_CFG_PAUSE_ENA] = REG_FIELD_ID(SYS_PAUSE_CFG, 0, 1, 7, 4),
};

static const struct vcap_field vsc9959_vcap_es0_keys[] = {
        [VCAP_ES0_EGR_PORT]                     = {  0,  3},
        [VCAP_ES0_IGR_PORT]                     = {  3,  3},
        [VCAP_ES0_RSV]                          = {  6,  2},
        [VCAP_ES0_L2_MC]                        = {  8,  1},
        [VCAP_ES0_L2_BC]                        = {  9,  1},
        [VCAP_ES0_VID]                          = { 10, 12},
        [VCAP_ES0_DP]                           = { 22,  1},
        [VCAP_ES0_PCP]                          = { 23,  3},
};

static const struct vcap_field vsc9959_vcap_es0_actions[] = {
        [VCAP_ES0_ACT_PUSH_OUTER_TAG]           = {  0,  2},
        [VCAP_ES0_ACT_PUSH_INNER_TAG]           = {  2,  1},
        [VCAP_ES0_ACT_TAG_A_TPID_SEL]           = {  3,  2},
        [VCAP_ES0_ACT_TAG_A_VID_SEL]            = {  5,  1},
        [VCAP_ES0_ACT_TAG_A_PCP_SEL]            = {  6,  2},
        [VCAP_ES0_ACT_TAG_A_DEI_SEL]            = {  8,  2},
        [VCAP_ES0_ACT_TAG_B_TPID_SEL]           = { 10,  2},
        [VCAP_ES0_ACT_TAG_B_VID_SEL]            = { 12,  1},
        [VCAP_ES0_ACT_TAG_B_PCP_SEL]            = { 13,  2},
        [VCAP_ES0_ACT_TAG_B_DEI_SEL]            = { 15,  2},
        [VCAP_ES0_ACT_VID_A_VAL]                = { 17, 12},
        [VCAP_ES0_ACT_PCP_A_VAL]                = { 29,  3},
        [VCAP_ES0_ACT_DEI_A_VAL]                = { 32,  1},
        [VCAP_ES0_ACT_VID_B_VAL]                = { 33, 12},
        [VCAP_ES0_ACT_PCP_B_VAL]                = { 45,  3},
        [VCAP_ES0_ACT_DEI_B_VAL]                = { 48,  1},
        [VCAP_ES0_ACT_RSV]                      = { 49, 23},
        [VCAP_ES0_ACT_HIT_STICKY]               = { 72,  1},
};

static const struct vcap_field vsc9959_vcap_is1_keys[] = {
        [VCAP_IS1_HK_TYPE]                      = {  0,   1},
        [VCAP_IS1_HK_LOOKUP]                    = {  1,   2},
        [VCAP_IS1_HK_IGR_PORT_MASK]             = {  3,   7},
        [VCAP_IS1_HK_RSV]                       = { 10,   9},
        [VCAP_IS1_HK_OAM_Y1731]                 = { 19,   1},
        [VCAP_IS1_HK_L2_MC]                     = { 20,   1},
        [VCAP_IS1_HK_L2_BC]                     = { 21,   1},
        [VCAP_IS1_HK_IP_MC]                     = { 22,   1},
        [VCAP_IS1_HK_VLAN_TAGGED]               = { 23,   1},
        [VCAP_IS1_HK_VLAN_DBL_TAGGED]           = { 24,   1},
        [VCAP_IS1_HK_TPID]                      = { 25,   1},
        [VCAP_IS1_HK_VID]                       = { 26,  12},
        [VCAP_IS1_HK_DEI]                       = { 38,   1},
        [VCAP_IS1_HK_PCP]                       = { 39,   3},
        /* Specific Fields for IS1 Half Key S1_NORMAL */
        [VCAP_IS1_HK_L2_SMAC]                   = { 42,  48},
        [VCAP_IS1_HK_ETYPE_LEN]                 = { 90,   1},
        [VCAP_IS1_HK_ETYPE]                     = { 91,  16},
        [VCAP_IS1_HK_IP_SNAP]                   = {107,   1},
        [VCAP_IS1_HK_IP4]                       = {108,   1},
        /* Layer-3 Information */
        [VCAP_IS1_HK_L3_FRAGMENT]               = {109,   1},
        [VCAP_IS1_HK_L3_FRAG_OFS_GT0]           = {110,   1},
        [VCAP_IS1_HK_L3_OPTIONS]                = {111,   1},
        [VCAP_IS1_HK_L3_DSCP]                   = {112,   6},
        [VCAP_IS1_HK_L3_IP4_SIP]                = {118,  32},
        /* Layer-4 Information */
        [VCAP_IS1_HK_TCP_UDP]                   = {150,   1},
        [VCAP_IS1_HK_TCP]                       = {151,   1},
        [VCAP_IS1_HK_L4_SPORT]                  = {152,  16},
        [VCAP_IS1_HK_L4_RNG]                    = {168,   8},
        /* Specific Fields for IS1 Half Key S1_5TUPLE_IP4 */
        [VCAP_IS1_HK_IP4_INNER_TPID]            = { 42,   1},
        [VCAP_IS1_HK_IP4_INNER_VID]             = { 43,  12},
        [VCAP_IS1_HK_IP4_INNER_DEI]             = { 55,   1},
        [VCAP_IS1_HK_IP4_INNER_PCP]             = { 56,   3},
        [VCAP_IS1_HK_IP4_IP4]                   = { 59,   1},
        [VCAP_IS1_HK_IP4_L3_FRAGMENT]           = { 60,   1},
        [VCAP_IS1_HK_IP4_L3_FRAG_OFS_GT0]       = { 61,   1},
        [VCAP_IS1_HK_IP4_L3_OPTIONS]            = { 62,   1},
        [VCAP_IS1_HK_IP4_L3_DSCP]               = { 63,   6},
        [VCAP_IS1_HK_IP4_L3_IP4_DIP]            = { 69,  32},
        [VCAP_IS1_HK_IP4_L3_IP4_SIP]            = {101,  32},
        [VCAP_IS1_HK_IP4_L3_PROTO]              = {133,   8},
        [VCAP_IS1_HK_IP4_TCP_UDP]               = {141,   1},
        [VCAP_IS1_HK_IP4_TCP]                   = {142,   1},
        [VCAP_IS1_HK_IP4_L4_RNG]                = {143,   8},
        [VCAP_IS1_HK_IP4_IP_PAYLOAD_S1_5TUPLE]  = {151,  32},
};

static const struct vcap_field vsc9959_vcap_is1_actions[] = {
        [VCAP_IS1_ACT_DSCP_ENA]                 = {  0,  1},
        [VCAP_IS1_ACT_DSCP_VAL]                 = {  1,  6},
        [VCAP_IS1_ACT_QOS_ENA]                  = {  7,  1},
        [VCAP_IS1_ACT_QOS_VAL]                  = {  8,  3},
        [VCAP_IS1_ACT_DP_ENA]                   = { 11,  1},
        [VCAP_IS1_ACT_DP_VAL]                   = { 12,  1},
        [VCAP_IS1_ACT_PAG_OVERRIDE_MASK]        = { 13,  8},
        [VCAP_IS1_ACT_PAG_VAL]                  = { 21,  8},
        [VCAP_IS1_ACT_RSV]                      = { 29,  9},
        /* The fields below are incorrectly shifted by 2 in the manual */
        [VCAP_IS1_ACT_VID_REPLACE_ENA]          = { 38,  1},
        [VCAP_IS1_ACT_VID_ADD_VAL]              = { 39, 12},
        [VCAP_IS1_ACT_FID_SEL]                  = { 51,  2},
        [VCAP_IS1_ACT_FID_VAL]                  = { 53, 13},
        [VCAP_IS1_ACT_PCP_DEI_ENA]              = { 66,  1},
        [VCAP_IS1_ACT_PCP_VAL]                  = { 67,  3},
        [VCAP_IS1_ACT_DEI_VAL]                  = { 70,  1},
        [VCAP_IS1_ACT_VLAN_POP_CNT_ENA]         = { 71,  1},
        [VCAP_IS1_ACT_VLAN_POP_CNT]             = { 72,  2},
        [VCAP_IS1_ACT_CUSTOM_ACE_TYPE_ENA]      = { 74,  4},
        [VCAP_IS1_ACT_HIT_STICKY]               = { 78,  1},
};

static struct vcap_field vsc9959_vcap_is2_keys[] = {
        /* Common: 41 bits */
        [VCAP_IS2_TYPE]                         = {  0,   4},
        [VCAP_IS2_HK_FIRST]                     = {  4,   1},
        [VCAP_IS2_HK_PAG]                       = {  5,   8},
        [VCAP_IS2_HK_IGR_PORT_MASK]             = { 13,   7},
        [VCAP_IS2_HK_RSV2]                      = { 20,   1},
        [VCAP_IS2_HK_HOST_MATCH]                = { 21,   1},
        [VCAP_IS2_HK_L2_MC]                     = { 22,   1},
        [VCAP_IS2_HK_L2_BC]                     = { 23,   1},
        [VCAP_IS2_HK_VLAN_TAGGED]               = { 24,   1},
        [VCAP_IS2_HK_VID]                       = { 25,  12},
        [VCAP_IS2_HK_DEI]                       = { 37,   1},
        [VCAP_IS2_HK_PCP]                       = { 38,   3},
        /* MAC_ETYPE / MAC_LLC / MAC_SNAP / OAM common */
        [VCAP_IS2_HK_L2_DMAC]                   = { 41,  48},
        [VCAP_IS2_HK_L2_SMAC]                   = { 89,  48},
        /* MAC_ETYPE (TYPE=000) */
        [VCAP_IS2_HK_MAC_ETYPE_ETYPE]           = {137,  16},
        [VCAP_IS2_HK_MAC_ETYPE_L2_PAYLOAD0]     = {153,  16},
        [VCAP_IS2_HK_MAC_ETYPE_L2_PAYLOAD1]     = {169,   8},
        [VCAP_IS2_HK_MAC_ETYPE_L2_PAYLOAD2]     = {177,   3},
        /* MAC_LLC (TYPE=001) */
        [VCAP_IS2_HK_MAC_LLC_L2_LLC]            = {137,  40},
        /* MAC_SNAP (TYPE=010) */
        [VCAP_IS2_HK_MAC_SNAP_L2_SNAP]          = {137,  40},
        /* MAC_ARP (TYPE=011) */
        [VCAP_IS2_HK_MAC_ARP_SMAC]              = { 41,  48},
        [VCAP_IS2_HK_MAC_ARP_ADDR_SPACE_OK]     = { 89,   1},
        [VCAP_IS2_HK_MAC_ARP_PROTO_SPACE_OK]    = { 90,   1},
        [VCAP_IS2_HK_MAC_ARP_LEN_OK]            = { 91,   1},
        [VCAP_IS2_HK_MAC_ARP_TARGET_MATCH]      = { 92,   1},
        [VCAP_IS2_HK_MAC_ARP_SENDER_MATCH]      = { 93,   1},
        [VCAP_IS2_HK_MAC_ARP_OPCODE_UNKNOWN]    = { 94,   1},
        [VCAP_IS2_HK_MAC_ARP_OPCODE]            = { 95,   2},
        [VCAP_IS2_HK_MAC_ARP_L3_IP4_DIP]        = { 97,  32},
        [VCAP_IS2_HK_MAC_ARP_L3_IP4_SIP]        = {129,  32},
        [VCAP_IS2_HK_MAC_ARP_DIP_EQ_SIP]        = {161,   1},
        /* IP4_TCP_UDP / IP4_OTHER common */
        [VCAP_IS2_HK_IP4]                       = { 41,   1},
        [VCAP_IS2_HK_L3_FRAGMENT]               = { 42,   1},
        [VCAP_IS2_HK_L3_FRAG_OFS_GT0]           = { 43,   1},
        [VCAP_IS2_HK_L3_OPTIONS]                = { 44,   1},
        [VCAP_IS2_HK_IP4_L3_TTL_GT0]            = { 45,   1},
        [VCAP_IS2_HK_L3_TOS]                    = { 46,   8},
        [VCAP_IS2_HK_L3_IP4_DIP]                = { 54,  32},
        [VCAP_IS2_HK_L3_IP4_SIP]                = { 86,  32},
        [VCAP_IS2_HK_DIP_EQ_SIP]                = {118,   1},
        /* IP4_TCP_UDP (TYPE=100) */
        [VCAP_IS2_HK_TCP]                       = {119,   1},
        [VCAP_IS2_HK_L4_DPORT]                  = {120,  16},
        [VCAP_IS2_HK_L4_SPORT]                  = {136,  16},
        [VCAP_IS2_HK_L4_RNG]                    = {152,   8},
        [VCAP_IS2_HK_L4_SPORT_EQ_DPORT]         = {160,   1},
        [VCAP_IS2_HK_L4_SEQUENCE_EQ0]           = {161,   1},
        [VCAP_IS2_HK_L4_FIN]                    = {162,   1},
        [VCAP_IS2_HK_L4_SYN]                    = {163,   1},
        [VCAP_IS2_HK_L4_RST]                    = {164,   1},
        [VCAP_IS2_HK_L4_PSH]                    = {165,   1},
        [VCAP_IS2_HK_L4_ACK]                    = {166,   1},
        [VCAP_IS2_HK_L4_URG]                    = {167,   1},
        [VCAP_IS2_HK_L4_1588_DOM]               = {168,   8},
        [VCAP_IS2_HK_L4_1588_VER]               = {176,   4},
        /* IP4_OTHER (TYPE=101) */
        [VCAP_IS2_HK_IP4_L3_PROTO]              = {119,   8},
        [VCAP_IS2_HK_L3_PAYLOAD]                = {127,  56},
        /* IP6_STD (TYPE=110) */
        [VCAP_IS2_HK_IP6_L3_TTL_GT0]            = { 41,   1},
        [VCAP_IS2_HK_L3_IP6_SIP]                = { 42, 128},
        [VCAP_IS2_HK_IP6_L3_PROTO]              = {170,   8},
        /* OAM (TYPE=111) */
        [VCAP_IS2_HK_OAM_MEL_FLAGS]             = {137,   7},
        [VCAP_IS2_HK_OAM_VER]                   = {144,   5},
        [VCAP_IS2_HK_OAM_OPCODE]                = {149,   8},
        [VCAP_IS2_HK_OAM_FLAGS]                 = {157,   8},
        [VCAP_IS2_HK_OAM_MEPID]                 = {165,  16},
        [VCAP_IS2_HK_OAM_CCM_CNTS_EQ0]          = {181,   1},
        [VCAP_IS2_HK_OAM_IS_Y1731]              = {182,   1},
};

static struct vcap_field vsc9959_vcap_is2_actions[] = {
        [VCAP_IS2_ACT_HIT_ME_ONCE]              = {  0,  1},
        [VCAP_IS2_ACT_CPU_COPY_ENA]             = {  1,  1},
        [VCAP_IS2_ACT_CPU_QU_NUM]               = {  2,  3},
        [VCAP_IS2_ACT_MASK_MODE]                = {  5,  2},
        [VCAP_IS2_ACT_MIRROR_ENA]               = {  7,  1},
        [VCAP_IS2_ACT_LRN_DIS]                  = {  8,  1},
        [VCAP_IS2_ACT_POLICE_ENA]               = {  9,  1},
        [VCAP_IS2_ACT_POLICE_IDX]               = { 10,  9},
        [VCAP_IS2_ACT_POLICE_VCAP_ONLY]         = { 19,  1},
        [VCAP_IS2_ACT_PORT_MASK]                = { 20,  6},
        [VCAP_IS2_ACT_REW_OP]                   = { 26,  9},
        [VCAP_IS2_ACT_SMAC_REPLACE_ENA]         = { 35,  1},
        [VCAP_IS2_ACT_RSV]                      = { 36,  2},
        [VCAP_IS2_ACT_ACL_ID]                   = { 38,  6},
        [VCAP_IS2_ACT_HIT_CNT]                  = { 44, 32},
};

static struct vcap_props vsc9959_vcap_props[] = {
        [VCAP_ES0] = {
                .action_type_width = 0,
                .action_table = {
                        [ES0_ACTION_TYPE_NORMAL] = {
                                .width = 72, /* HIT_STICKY not included */
                                .count = 1,
                        },
                },
                .target = S0,
                .keys = vsc9959_vcap_es0_keys,
                .actions = vsc9959_vcap_es0_actions,
        },
        [VCAP_IS1] = {
                .action_type_width = 0,
                .action_table = {
                        [IS1_ACTION_TYPE_NORMAL] = {
                                .width = 78, /* HIT_STICKY not included */
                                .count = 4,
                        },
                },
                .target = S1,
                .keys = vsc9959_vcap_is1_keys,
                .actions = vsc9959_vcap_is1_actions,
        },
        [VCAP_IS2] = {
                .action_type_width = 1,
                .action_table = {
                        [IS2_ACTION_TYPE_NORMAL] = {
                                .width = 44,
                                .count = 2
                        },
                        [IS2_ACTION_TYPE_SMAC_SIP] = {
                                .width = 6,
                                .count = 4
                        },
                },
                .target = S2,
                .keys = vsc9959_vcap_is2_keys,
                .actions = vsc9959_vcap_is2_actions,
        },
};

static const struct ptp_clock_info vsc9959_ptp_caps = {
        .owner          = THIS_MODULE,
        .name           = "felix ptp",
        .max_adj        = 0x7fffffff,
        .n_alarm        = 0,
        .n_ext_ts       = 0,
        .n_per_out      = OCELOT_PTP_PINS_NUM,
        .n_pins         = OCELOT_PTP_PINS_NUM,
        .pps            = 0,
        .gettime64      = ocelot_ptp_gettime64,
        .settime64      = ocelot_ptp_settime64,
        .adjtime        = ocelot_ptp_adjtime,
        .adjfine        = ocelot_ptp_adjfine,
        .verify         = ocelot_ptp_verify,
        .enable         = ocelot_ptp_enable,
};

#define VSC9959_INIT_TIMEOUT                    50000
#define VSC9959_GCB_RST_SLEEP                   100
#define VSC9959_SYS_RAMINIT_SLEEP               80

static int vsc9959_gcb_soft_rst_status(struct ocelot *ocelot)
{
        int val;

        ocelot_field_read(ocelot, GCB_SOFT_RST_SWC_RST, &val);

        return val;
}

static int vsc9959_sys_ram_init_status(struct ocelot *ocelot)
{
        return ocelot_read(ocelot, SYS_RAM_INIT);
}

/* CORE_ENA is in SYS:SYSTEM:RESET_CFG
 * RAM_INIT is in SYS:RAM_CTRL:RAM_INIT
 */
static int vsc9959_reset(struct ocelot *ocelot)
{
        int val, err;

        /* soft-reset the switch core */
        ocelot_field_write(ocelot, GCB_SOFT_RST_SWC_RST, 1);

        err = readx_poll_timeout(vsc9959_gcb_soft_rst_status, ocelot, val, !val,
                                 VSC9959_GCB_RST_SLEEP, VSC9959_INIT_TIMEOUT);
        if (err) {
                dev_err(ocelot->dev, "timeout: switch core reset\n");
                return err;
        }

        /* initialize switch mem ~40us */
        ocelot_write(ocelot, SYS_RAM_INIT_RAM_INIT, SYS_RAM_INIT);
        err = readx_poll_timeout(vsc9959_sys_ram_init_status, ocelot, val, !val,
                                 VSC9959_SYS_RAMINIT_SLEEP,
                                 VSC9959_INIT_TIMEOUT);
        if (err) {
                dev_err(ocelot->dev, "timeout: switch sram init\n");
                return err;
        }

        /* enable switch core */
        ocelot_field_write(ocelot, SYS_RESET_CFG_CORE_ENA, 1);

        return 0;
}

/* Watermark encode
 * Bit 8:   Unit; 0:1, 1:16
 * Bit 7-0: Value to be multiplied with unit
 */
static u16 vsc9959_wm_enc(u16 value)
{
        WARN_ON(value >= 16 * BIT(8));

        if (value >= BIT(8))
                return BIT(8) | (value / 16);

        return value;
}

static u16 vsc9959_wm_dec(u16 wm)
{
        WARN_ON(wm & ~GENMASK(8, 0));

        if (wm & BIT(8))
                return (wm & GENMASK(7, 0)) * 16;

        return wm;
}

static void vsc9959_wm_stat(u32 val, u32 *inuse, u32 *maxuse)
{
        *inuse = (val & GENMASK(23, 12)) >> 12;
        *maxuse = val & GENMASK(11, 0);
}

static int vsc9959_mdio_bus_alloc(struct ocelot *ocelot)
{
        struct pci_dev *pdev = to_pci_dev(ocelot->dev);
        struct felix *felix = ocelot_to_felix(ocelot);
        struct enetc_mdio_priv *mdio_priv;
        struct device *dev = ocelot->dev;
        resource_size_t imdio_base;
        void __iomem *imdio_regs;
        struct resource res;
        struct enetc_hw *hw;
        struct mii_bus *bus;
        int port;
        int rc;

        felix->pcs = devm_kcalloc(dev, felix->info->num_ports,
                                  sizeof(struct phylink_pcs *),
                                  GFP_KERNEL);
        if (!felix->pcs) {
                dev_err(dev, "failed to allocate array for PCS PHYs\n");
                return -ENOMEM;
        }

        imdio_base = pci_resource_start(pdev, VSC9959_IMDIO_PCI_BAR);

        memcpy(&res, &vsc9959_imdio_res, sizeof(res));
        res.start += imdio_base;
        res.end += imdio_base;

        imdio_regs = devm_ioremap_resource(dev, &res);
        if (IS_ERR(imdio_regs))
                return PTR_ERR(imdio_regs);

        hw = enetc_hw_alloc(dev, imdio_regs);
        if (IS_ERR(hw)) {
                dev_err(dev, "failed to allocate ENETC HW structure\n");
                return PTR_ERR(hw);
        }

        bus = mdiobus_alloc_size(sizeof(*mdio_priv));
        if (!bus)
                return -ENOMEM;

        bus->name = "VSC9959 internal MDIO bus";
        bus->read = enetc_mdio_read_c22;
        bus->write = enetc_mdio_write_c22;
        bus->read_c45 = enetc_mdio_read_c45;
        bus->write_c45 = enetc_mdio_write_c45;
        bus->parent = dev;
        mdio_priv = bus->priv;
        mdio_priv->hw = hw;
        /* This gets added to imdio_regs, which already maps addresses
         * starting with the proper offset.
         */
        mdio_priv->mdio_base = 0;
        snprintf(bus->id, MII_BUS_ID_SIZE, "%s-imdio", dev_name(dev));

        /* Needed in order to initialize the bus mutex lock */
        rc = mdiobus_register(bus);
        if (rc < 0) {
                dev_err(dev, "failed to register MDIO bus\n");
                mdiobus_free(bus);
                return rc;
        }

        felix->imdio = bus;

        for (port = 0; port < felix->info->num_ports; port++) {
                struct ocelot_port *ocelot_port = ocelot->ports[port];
                struct phylink_pcs *phylink_pcs;

                if (dsa_is_unused_port(felix->ds, port))
                        continue;

                if (ocelot_port->phy_mode == PHY_INTERFACE_MODE_INTERNAL)
                        continue;

                phylink_pcs = lynx_pcs_create_mdiodev(felix->imdio, port);
                if (IS_ERR(phylink_pcs))
                        continue;

                felix->pcs[port] = phylink_pcs;

                dev_info(dev, "Found PCS at internal MDIO address %d\n", port);
        }

        return 0;
}

static void vsc9959_mdio_bus_free(struct ocelot *ocelot)
{
        struct felix *felix = ocelot_to_felix(ocelot);
        int port;

        for (port = 0; port < ocelot->num_phys_ports; port++) {
                struct phylink_pcs *phylink_pcs = felix->pcs[port];

                if (phylink_pcs)
                        lynx_pcs_destroy(phylink_pcs);
        }
        mdiobus_unregister(felix->imdio);
        mdiobus_free(felix->imdio);
}

/* The switch considers any frame (regardless of size) as eligible
 * for transmission if the traffic class gate is open for at least
 * VSC9959_TAS_MIN_GATE_LEN_NS.
 *
 * Overruns are prevented by cropping an interval at the end of the gate time
 * slot for which egress scheduling is blocked, but we need to still keep
 * VSC9959_TAS_MIN_GATE_LEN_NS available for one packet to be transmitted,
 * otherwise the port tc will hang.
 *
 * This function returns the size of a gate interval that remains available for
 * setting the guard band, after reserving the space for one egress frame.
 */
static u64 vsc9959_tas_remaining_gate_len_ps(u64 gate_len_ns)
{
        /* Gate always open */
        if (gate_len_ns == U64_MAX)
                return U64_MAX;

        if (gate_len_ns < VSC9959_TAS_MIN_GATE_LEN_NS)
                return 0;

        return (gate_len_ns - VSC9959_TAS_MIN_GATE_LEN_NS) * PSEC_PER_NSEC;
}

/* Extract shortest continuous gate open intervals in ns for each traffic class
 * of a cyclic tc-taprio schedule. If a gate is always open, the duration is
 * considered U64_MAX. If the gate is always closed, it is considered 0.
 */
static void vsc9959_tas_min_gate_lengths(struct tc_taprio_qopt_offload *taprio,
                                         u64 min_gate_len[OCELOT_NUM_TC])
{
        struct tc_taprio_sched_entry *entry;
        u64 gate_len[OCELOT_NUM_TC];
        u8 gates_ever_opened = 0;
        int tc, i, n;

        /* Initialize arrays */
        for (tc = 0; tc < OCELOT_NUM_TC; tc++) {
                min_gate_len[tc] = U64_MAX;
                gate_len[tc] = 0;
        }

        /* If we don't have taprio, consider all gates as permanently open */
        if (!taprio)
                return;

        n = taprio->num_entries;

        /* Walk through the gate list twice to determine the length
         * of consecutively open gates for a traffic class, including
         * open gates that wrap around. We are just interested in the
         * minimum window size, and this doesn't change what the
         * minimum is (if the gate never closes, min_gate_len will
         * remain U64_MAX).
         */
        for (i = 0; i < 2 * n; i++) {
                entry = &taprio->entries[i % n];

                for (tc = 0; tc < OCELOT_NUM_TC; tc++) {
                        if (entry->gate_mask & BIT(tc)) {
                                gate_len[tc] += entry->interval;
                                gates_ever_opened |= BIT(tc);
                        } else {
                                /* Gate closes now, record a potential new
                                 * minimum and reinitialize length
                                 */
                                if (min_gate_len[tc] > gate_len[tc] &&
                                    gate_len[tc])
                                        min_gate_len[tc] = gate_len[tc];
                                gate_len[tc] = 0;
                        }
                }
        }

        /* min_gate_len[tc] actually tracks minimum *open* gate time, so for
         * permanently closed gates, min_gate_len[tc] will still be U64_MAX.
         * Therefore they are currently indistinguishable from permanently
         * open gates. Overwrite the gate len with 0 when we know they're
         * actually permanently closed, i.e. after the loop above.
         */
        for (tc = 0; tc < OCELOT_NUM_TC; tc++)
                if (!(gates_ever_opened & BIT(tc)))
                        min_gate_len[tc] = 0;
}

/* ocelot_write_rix is a macro that concatenates QSYS_MAXSDU_CFG_* with _RSZ,
 * so we need to spell out the register access to each traffic class in helper
 * functions, to simplify callers
 */
static void vsc9959_port_qmaxsdu_set(struct ocelot *ocelot, int port, int tc,
                                     u32 max_sdu)
{
        switch (tc) {
        case 0:
                ocelot_write_rix(ocelot, max_sdu, QSYS_QMAXSDU_CFG_0,
                                 port);
                break;
        case 1:
                ocelot_write_rix(ocelot, max_sdu, QSYS_QMAXSDU_CFG_1,
                                 port);
                break;
        case 2:
                ocelot_write_rix(ocelot, max_sdu, QSYS_QMAXSDU_CFG_2,
                                 port);
                break;
        case 3:
                ocelot_write_rix(ocelot, max_sdu, QSYS_QMAXSDU_CFG_3,
                                 port);
                break;
        case 4:
                ocelot_write_rix(ocelot, max_sdu, QSYS_QMAXSDU_CFG_4,
                                 port);
                break;
        case 5:
                ocelot_write_rix(ocelot, max_sdu, QSYS_QMAXSDU_CFG_5,
                                 port);
                break;
        case 6:
                ocelot_write_rix(ocelot, max_sdu, QSYS_QMAXSDU_CFG_6,
                                 port);
                break;
        case 7:
                ocelot_write_rix(ocelot, max_sdu, QSYS_QMAXSDU_CFG_7,
                                 port);
                break;
        }
}

static u32 vsc9959_port_qmaxsdu_get(struct ocelot *ocelot, int port, int tc)
{
        switch (tc) {
        case 0: return ocelot_read_rix(ocelot, QSYS_QMAXSDU_CFG_0, port);
        case 1: return ocelot_read_rix(ocelot, QSYS_QMAXSDU_CFG_1, port);
        case 2: return ocelot_read_rix(ocelot, QSYS_QMAXSDU_CFG_2, port);
        case 3: return ocelot_read_rix(ocelot, QSYS_QMAXSDU_CFG_3, port);
        case 4: return ocelot_read_rix(ocelot, QSYS_QMAXSDU_CFG_4, port);
        case 5: return ocelot_read_rix(ocelot, QSYS_QMAXSDU_CFG_5, port);
        case 6: return ocelot_read_rix(ocelot, QSYS_QMAXSDU_CFG_6, port);
        case 7: return ocelot_read_rix(ocelot, QSYS_QMAXSDU_CFG_7, port);
        default:
                return 0;
        }
}

static u32 vsc9959_tas_tc_max_sdu(struct tc_taprio_qopt_offload *taprio, int tc)
{
        if (!taprio || !taprio->max_sdu[tc])
                return 0;

        return taprio->max_sdu[tc] + ETH_HLEN + 2 * VLAN_HLEN + ETH_FCS_LEN;
}

/* Update QSYS_PORT_MAX_SDU to make sure the static guard bands added by the
 * switch (see the ALWAYS_GUARD_BAND_SCH_Q comment) are correct at all MTU
 * values (the default value is 1518). Also, for traffic class windows smaller
 * than one MTU sized frame, update QSYS_QMAXSDU_CFG to enable oversized frame
 * dropping, such that these won't hang the port, as they will never be sent.
 */
static void vsc9959_tas_guard_bands_update(struct ocelot *ocelot, int port)
{
        struct ocelot_port *ocelot_port = ocelot->ports[port];
        struct ocelot_mm_state *mm = &ocelot->mm[port];
        struct tc_taprio_qopt_offload *taprio;
        u64 min_gate_len[OCELOT_NUM_TC];
        u32 val, maxlen, add_frag_size;
        u64 needed_min_frag_time_ps;
        int speed, picos_per_byte;
        u64 needed_bit_time_ps;
        u8 tas_speed;
        int tc;

        lockdep_assert_held(&ocelot->fwd_domain_lock);

        taprio = ocelot_port->taprio;

        val = ocelot_read_rix(ocelot, QSYS_TAG_CONFIG, port);
        tas_speed = QSYS_TAG_CONFIG_LINK_SPEED_X(val);

        switch (tas_speed) {
        case OCELOT_SPEED_10:
                speed = SPEED_10;
                break;
        case OCELOT_SPEED_100:
                speed = SPEED_100;
                break;
        case OCELOT_SPEED_1000:
                speed = SPEED_1000;
                break;
        case OCELOT_SPEED_2500:
                speed = SPEED_2500;
                break;
        default:
                return;
        }

        picos_per_byte = (USEC_PER_SEC * 8) / speed;

        val = ocelot_port_readl(ocelot_port, DEV_MAC_MAXLEN_CFG);
        /* MAXLEN_CFG accounts automatically for VLAN. We need to include it
         * manually in the bit time calculation, plus the preamble and SFD.
         */
        maxlen = val + 2 * VLAN_HLEN;
        /* Consider the standard Ethernet overhead of 8 octets preamble+SFD,
         * 4 octets FCS, 12 octets IFG.
         */
        needed_bit_time_ps = (u64)(maxlen + 24) * picos_per_byte;

        /* Preemptible TCs don't need to pass a full MTU, the port will
         * automatically emit a HOLD request when a preemptible TC gate closes
         */
        val = ocelot_read_rix(ocelot, QSYS_PREEMPTION_CFG, port);
        add_frag_size = QSYS_PREEMPTION_CFG_MM_ADD_FRAG_SIZE_X(val);
        needed_min_frag_time_ps = picos_per_byte *
                (u64)(24 + 2 * ethtool_mm_frag_size_add_to_min(add_frag_size));

        dev_dbg(ocelot->dev,
                "port %d: max frame size %d needs %llu ps, %llu ps for mPackets at speed %d\n",
                port, maxlen, needed_bit_time_ps, needed_min_frag_time_ps,
                speed);

        vsc9959_tas_min_gate_lengths(taprio, min_gate_len);

        for (tc = 0; tc < OCELOT_NUM_TC; tc++) {
                u32 requested_max_sdu = vsc9959_tas_tc_max_sdu(taprio, tc);
                u64 remaining_gate_len_ps;
                u32 max_sdu;

                remaining_gate_len_ps =
                        vsc9959_tas_remaining_gate_len_ps(min_gate_len[tc]);

                if ((mm->active_preemptible_tcs & BIT(tc)) ?
                    remaining_gate_len_ps > needed_min_frag_time_ps :
                    remaining_gate_len_ps > needed_bit_time_ps) {
                        /* Setting QMAXSDU_CFG to 0 disables oversized frame
                         * dropping.
                         */
                        max_sdu = requested_max_sdu;
                        dev_dbg(ocelot->dev,
                                "port %d tc %d min gate len %llu"
                                ", sending all frames\n",
                                port, tc, min_gate_len[tc]);
                } else {
                        /* If traffic class doesn't support a full MTU sized
                         * frame, make sure to enable oversize frame dropping
                         * for frames larger than the smallest that would fit.
                         *
                         * However, the exact same register, QSYS_QMAXSDU_CFG_*,
                         * controls not only oversized frame dropping, but also
                         * per-tc static guard band lengths, so it reduces the
                         * useful gate interval length. Therefore, be careful
                         * to calculate a guard band (and therefore max_sdu)
                         * that still leaves VSC9959_TAS_MIN_GATE_LEN_NS
                         * available in the time slot.
                         */
                        max_sdu = div_u64(remaining_gate_len_ps, picos_per_byte);
                        /* A TC gate may be completely closed, which is a
                         * special case where all packets are oversized.
                         * Any limit smaller than 64 octets accomplishes this
                         */
                        if (!max_sdu)
                                max_sdu = 1;
                        /* Take L1 overhead into account, but just don't allow
                         * max_sdu to go negative or to 0. Here we use 20
                         * because QSYS_MAXSDU_CFG_* already counts the 4 FCS
                         * octets as part of packet size.
                         */
                        if (max_sdu > 20)
                                max_sdu -= 20;

                        if (requested_max_sdu && requested_max_sdu < max_sdu)
                                max_sdu = requested_max_sdu;

                        dev_info(ocelot->dev,
                                 "port %d tc %d min gate length %llu"
                                 " ns not enough for max frame size %d at %d"
                                 " Mbps, dropping frames over %d"
                                 " octets including FCS\n",
                                 port, tc, min_gate_len[tc], maxlen, speed,
                                 max_sdu);
                }

                vsc9959_port_qmaxsdu_set(ocelot, port, tc, max_sdu);
        }

        ocelot_write_rix(ocelot, maxlen, QSYS_PORT_MAX_SDU, port);

        ocelot->ops->cut_through_fwd(ocelot);
}

static void vsc9959_sched_speed_set(struct ocelot *ocelot, int port,
                                    u32 speed)
{
        struct ocelot_port *ocelot_port = ocelot->ports[port];
        u8 tas_speed;

        switch (speed) {
        case SPEED_10:
                tas_speed = OCELOT_SPEED_10;
                break;
        case SPEED_100:
                tas_speed = OCELOT_SPEED_100;
                break;
        case SPEED_1000:
                tas_speed = OCELOT_SPEED_1000;
                break;
        case SPEED_2500:
                tas_speed = OCELOT_SPEED_2500;
                break;
        default:
                tas_speed = OCELOT_SPEED_1000;
                break;
        }

        mutex_lock(&ocelot->fwd_domain_lock);

        ocelot_rmw_rix(ocelot,
                       QSYS_TAG_CONFIG_LINK_SPEED(tas_speed),
                       QSYS_TAG_CONFIG_LINK_SPEED_M,
                       QSYS_TAG_CONFIG, port);

        if (ocelot_port->taprio)
                vsc9959_tas_guard_bands_update(ocelot, port);

        mutex_unlock(&ocelot->fwd_domain_lock);
}

static void vsc9959_new_base_time(struct ocelot *ocelot, ktime_t base_time,
                                  u64 cycle_time,
                                  struct timespec64 *new_base_ts)
{
        struct timespec64 ts;
        ktime_t new_base_time;
        ktime_t current_time;

        ocelot_ptp_gettime64(&ocelot->ptp_info, &ts);
        current_time = timespec64_to_ktime(ts);
        new_base_time = base_time;

        if (base_time < current_time) {
                u64 nr_of_cycles = current_time - base_time;

                do_div(nr_of_cycles, cycle_time);
                new_base_time += cycle_time * (nr_of_cycles + 1);
        }

        *new_base_ts = ktime_to_timespec64(new_base_time);
}

static u32 vsc9959_tas_read_cfg_status(struct ocelot *ocelot)
{
        return ocelot_read(ocelot, QSYS_TAS_PARAM_CFG_CTRL);
}

static void vsc9959_tas_gcl_set(struct ocelot *ocelot, const u32 gcl_ix,
                                struct tc_taprio_sched_entry *entry)
{
        ocelot_write(ocelot,
                     QSYS_GCL_CFG_REG_1_GCL_ENTRY_NUM(gcl_ix) |
                     QSYS_GCL_CFG_REG_1_GATE_STATE(entry->gate_mask),
                     QSYS_GCL_CFG_REG_1);
        ocelot_write(ocelot, entry->interval, QSYS_GCL_CFG_REG_2);
}

static int vsc9959_qos_port_tas_set(struct ocelot *ocelot, int port,
                                    struct tc_taprio_qopt_offload *taprio)
{
        struct ocelot_port *ocelot_port = ocelot->ports[port];
        struct timespec64 base_ts;
        int ret, i;
        u32 val;

        mutex_lock(&ocelot->fwd_domain_lock);

        if (taprio->cmd == TAPRIO_CMD_DESTROY) {
                ocelot_port_mqprio(ocelot, port, &taprio->mqprio);
                ocelot_rmw_rix(ocelot, 0, QSYS_TAG_CONFIG_ENABLE,
                               QSYS_TAG_CONFIG, port);

                taprio_offload_free(ocelot_port->taprio);
                ocelot_port->taprio = NULL;

                vsc9959_tas_guard_bands_update(ocelot, port);

                mutex_unlock(&ocelot->fwd_domain_lock);
                return 0;
        } else if (taprio->cmd != TAPRIO_CMD_REPLACE) {
                ret = -EOPNOTSUPP;
                goto err_unlock;
        }

        ret = ocelot_port_mqprio(ocelot, port, &taprio->mqprio);
        if (ret)
                goto err_unlock;

        if (taprio->cycle_time > NSEC_PER_SEC ||
            taprio->cycle_time_extension >= NSEC_PER_SEC) {
                ret = -EINVAL;
                goto err_reset_tc;
        }

        if (taprio->num_entries > VSC9959_TAS_GCL_ENTRY_MAX) {
                ret = -ERANGE;
                goto err_reset_tc;
        }

        /* Enable guard band. The switch will schedule frames without taking
         * their length into account. Thus we'll always need to enable the
         * guard band which reserves the time of a maximum sized frame at the
         * end of the time window.
         *
         * Although the ALWAYS_GUARD_BAND_SCH_Q bit is global for all ports, we
         * need to set PORT_NUM, because subsequent writes to PARAM_CFG_REG_n
         * operate on the port number.
         */
        ocelot_rmw(ocelot, QSYS_TAS_PARAM_CFG_CTRL_PORT_NUM(port) |
                   QSYS_TAS_PARAM_CFG_CTRL_ALWAYS_GUARD_BAND_SCH_Q,
                   QSYS_TAS_PARAM_CFG_CTRL_PORT_NUM_M |
                   QSYS_TAS_PARAM_CFG_CTRL_ALWAYS_GUARD_BAND_SCH_Q,
                   QSYS_TAS_PARAM_CFG_CTRL);

        /* Hardware errata -  Admin config could not be overwritten if
         * config is pending, need reset the TAS module
         */
        val = ocelot_read_rix(ocelot, QSYS_TAG_CONFIG, port);
        if (val & QSYS_TAG_CONFIG_ENABLE) {
                val = ocelot_read(ocelot, QSYS_PARAM_STATUS_REG_8);
                if (val & QSYS_PARAM_STATUS_REG_8_CONFIG_PENDING) {
                        ret = -EBUSY;
                        goto err_reset_tc;
                }
        }

        ocelot_rmw_rix(ocelot,
                       QSYS_TAG_CONFIG_ENABLE |
                       QSYS_TAG_CONFIG_INIT_GATE_STATE(0xFF) |
                       QSYS_TAG_CONFIG_SCH_TRAFFIC_QUEUES(0xFF),
                       QSYS_TAG_CONFIG_ENABLE |
                       QSYS_TAG_CONFIG_INIT_GATE_STATE_M |
                       QSYS_TAG_CONFIG_SCH_TRAFFIC_QUEUES_M,
                       QSYS_TAG_CONFIG, port);

        vsc9959_new_base_time(ocelot, taprio->base_time,
                              taprio->cycle_time, &base_ts);
        ocelot_write(ocelot, base_ts.tv_nsec, QSYS_PARAM_CFG_REG_1);
        ocelot_write(ocelot, lower_32_bits(base_ts.tv_sec), QSYS_PARAM_CFG_REG_2);
        val = upper_32_bits(base_ts.tv_sec);
        ocelot_write(ocelot,
                     QSYS_PARAM_CFG_REG_3_BASE_TIME_SEC_MSB(val) |
                     QSYS_PARAM_CFG_REG_3_LIST_LENGTH(taprio->num_entries),
                     QSYS_PARAM_CFG_REG_3);
        ocelot_write(ocelot, taprio->cycle_time, QSYS_PARAM_CFG_REG_4);
        ocelot_write(ocelot, taprio->cycle_time_extension, QSYS_PARAM_CFG_REG_5);

        for (i = 0; i < taprio->num_entries; i++)
                vsc9959_tas_gcl_set(ocelot, i, &taprio->entries[i]);

        ocelot_rmw(ocelot, QSYS_TAS_PARAM_CFG_CTRL_CONFIG_CHANGE,
                   QSYS_TAS_PARAM_CFG_CTRL_CONFIG_CHANGE,
                   QSYS_TAS_PARAM_CFG_CTRL);

        ret = readx_poll_timeout(vsc9959_tas_read_cfg_status, ocelot, val,
                                 !(val & QSYS_TAS_PARAM_CFG_CTRL_CONFIG_CHANGE),
                                 10, 100000);
        if (ret)
                goto err_reset_tc;

        ocelot_port->taprio = taprio_offload_get(taprio);
        vsc9959_tas_guard_bands_update(ocelot, port);

        mutex_unlock(&ocelot->fwd_domain_lock);

        return 0;

err_reset_tc:
        taprio->mqprio.qopt.num_tc = 0;
        ocelot_port_mqprio(ocelot, port, &taprio->mqprio);
err_unlock:
        mutex_unlock(&ocelot->fwd_domain_lock);

        return ret;
}

static void vsc9959_tas_clock_adjust(struct ocelot *ocelot)
{
        struct tc_taprio_qopt_offload *taprio;
        struct ocelot_port *ocelot_port;
        struct timespec64 base_ts;
        int i, port;
        u32 val;

        mutex_lock(&ocelot->fwd_domain_lock);

        for (port = 0; port < ocelot->num_phys_ports; port++) {
                ocelot_port = ocelot->ports[port];
                taprio = ocelot_port->taprio;
                if (!taprio)
                        continue;

                ocelot_rmw(ocelot,
                           QSYS_TAS_PARAM_CFG_CTRL_PORT_NUM(port),
                           QSYS_TAS_PARAM_CFG_CTRL_PORT_NUM_M,
                           QSYS_TAS_PARAM_CFG_CTRL);

                /* Disable time-aware shaper */
                ocelot_rmw_rix(ocelot, 0, QSYS_TAG_CONFIG_ENABLE,
                               QSYS_TAG_CONFIG, port);

                vsc9959_new_base_time(ocelot, taprio->base_time,
                                      taprio->cycle_time, &base_ts);

                ocelot_write(ocelot, base_ts.tv_nsec, QSYS_PARAM_CFG_REG_1);
                ocelot_write(ocelot, lower_32_bits(base_ts.tv_sec),
                             QSYS_PARAM_CFG_REG_2);
                val = upper_32_bits(base_ts.tv_sec);
                ocelot_rmw(ocelot,
                           QSYS_PARAM_CFG_REG_3_BASE_TIME_SEC_MSB(val),
                           QSYS_PARAM_CFG_REG_3_BASE_TIME_SEC_MSB_M,
                           QSYS_PARAM_CFG_REG_3);

                for (i = 0; i < taprio->num_entries; i++)
                        vsc9959_tas_gcl_set(ocelot, i, &taprio->entries[i]);

                ocelot_rmw(ocelot, QSYS_TAS_PARAM_CFG_CTRL_CONFIG_CHANGE,
                           QSYS_TAS_PARAM_CFG_CTRL_CONFIG_CHANGE,
                           QSYS_TAS_PARAM_CFG_CTRL);

                /* Re-enable time-aware shaper */
                ocelot_rmw_rix(ocelot, QSYS_TAG_CONFIG_ENABLE,
                               QSYS_TAG_CONFIG_ENABLE,
                               QSYS_TAG_CONFIG, port);
        }
        mutex_unlock(&ocelot->fwd_domain_lock);
}

static int vsc9959_qos_port_cbs_set(struct dsa_switch *ds, int port,
                                    struct tc_cbs_qopt_offload *cbs_qopt)
{
        struct ocelot *ocelot = ds->priv;
        int port_ix = port * 8 + cbs_qopt->queue;
        u32 rate, burst;

        if (cbs_qopt->queue >= ds->num_tx_queues)
                return -EINVAL;

        if (!cbs_qopt->enable) {
                ocelot_write_gix(ocelot, QSYS_CIR_CFG_CIR_RATE(0) |
                                 QSYS_CIR_CFG_CIR_BURST(0),
                                 QSYS_CIR_CFG, port_ix);

                ocelot_rmw_gix(ocelot, 0, QSYS_SE_CFG_SE_AVB_ENA,
                               QSYS_SE_CFG, port_ix);

                return 0;
        }

        /* Rate unit is 100 kbps */
        rate = DIV_ROUND_UP(cbs_qopt->idleslope, 100);
        /* Avoid using zero rate */
        rate = clamp_t(u32, rate, 1, GENMASK(14, 0));
        /* Burst unit is 4kB */
        burst = DIV_ROUND_UP(cbs_qopt->hicredit, 4096);
        /* Avoid using zero burst size */
        burst = clamp_t(u32, burst, 1, GENMASK(5, 0));
        ocelot_write_gix(ocelot,
                         QSYS_CIR_CFG_CIR_RATE(rate) |
                         QSYS_CIR_CFG_CIR_BURST(burst),
                         QSYS_CIR_CFG,
                         port_ix);

        ocelot_rmw_gix(ocelot,
                       QSYS_SE_CFG_SE_FRM_MODE(0) |
                       QSYS_SE_CFG_SE_AVB_ENA,
                       QSYS_SE_CFG_SE_AVB_ENA |
                       QSYS_SE_CFG_SE_FRM_MODE_M,
                       QSYS_SE_CFG,
                       port_ix);

        return 0;
}

static int vsc9959_qos_query_caps(struct tc_query_caps_base *base)
{
        switch (base->type) {
        case TC_SETUP_QDISC_MQPRIO: {
                struct tc_mqprio_caps *caps = base->caps;

                caps->validate_queue_counts = true;

                return 0;
        }
        case TC_SETUP_QDISC_TAPRIO: {
                struct tc_taprio_caps *caps = base->caps;

                caps->supports_queue_max_sdu = true;

                return 0;
        }
        default:
                return -EOPNOTSUPP;
        }
}

static int vsc9959_qos_port_mqprio(struct ocelot *ocelot, int port,
                                   struct tc_mqprio_qopt_offload *mqprio)
{
        int ret;

        mutex_lock(&ocelot->fwd_domain_lock);
        ret = ocelot_port_mqprio(ocelot, port, mqprio);
        mutex_unlock(&ocelot->fwd_domain_lock);

        return ret;
}

static int vsc9959_port_setup_tc(struct dsa_switch *ds, int port,
                                 enum tc_setup_type type,
                                 void *type_data)
{
        struct ocelot *ocelot = ds->priv;

        switch (type) {
        case TC_QUERY_CAPS:
                return vsc9959_qos_query_caps(type_data);
        case TC_SETUP_QDISC_TAPRIO:
                return vsc9959_qos_port_tas_set(ocelot, port, type_data);
        case TC_SETUP_QDISC_MQPRIO:
                return vsc9959_qos_port_mqprio(ocelot, port, type_data);
        case TC_SETUP_QDISC_CBS:
                return vsc9959_qos_port_cbs_set(ds, port, type_data);
        default:
                return -EOPNOTSUPP;
        }
}

#define VSC9959_PSFP_SFID_MAX                   175
#define VSC9959_PSFP_GATE_ID_MAX                183
#define VSC9959_PSFP_POLICER_BASE               63
#define VSC9959_PSFP_POLICER_MAX                383
#define VSC9959_PSFP_GATE_LIST_NUM              4
#define VSC9959_PSFP_GATE_CYCLETIME_MIN         5000

struct felix_stream {
        struct list_head list;
        unsigned long id;
        bool dummy;
        int ports;
        int port;
        u8 dmac[ETH_ALEN];
        u16 vid;
        s8 prio;
        u8 sfid_valid;
        u8 ssid_valid;
        u32 sfid;
        u32 ssid;
};

struct felix_stream_filter_counters {
        u64 match;
        u64 not_pass_gate;
        u64 not_pass_sdu;
        u64 red;
};

struct felix_stream_filter {
        struct felix_stream_filter_counters stats;
        struct list_head list;
        refcount_t refcount;
        u32 index;
        u8 enable;
        int portmask;
        u8 sg_valid;
        u32 sgid;
        u8 fm_valid;
        u32 fmid;
        u8 prio_valid;
        u8 prio;
        u32 maxsdu;
};

struct felix_stream_gate {
        u32 index;
        u8 enable;
        u8 ipv_valid;
        u8 init_ipv;
        u64 basetime;
        u64 cycletime;
        u64 cycletime_ext;
        u32 num_entries;
        struct action_gate_entry entries[] __counted_by(num_entries);
};

struct felix_stream_gate_entry {
        struct list_head list;
        refcount_t refcount;
        u32 index;
};

static int vsc9959_stream_identify(struct flow_cls_offload *f,
                                   struct felix_stream *stream)
{
        struct flow_rule *rule = flow_cls_offload_flow_rule(f);
        struct flow_dissector *dissector = rule->match.dissector;

        if (dissector->used_keys &
            ~(BIT_ULL(FLOW_DISSECTOR_KEY_CONTROL) |
              BIT_ULL(FLOW_DISSECTOR_KEY_BASIC) |
              BIT_ULL(FLOW_DISSECTOR_KEY_VLAN) |
              BIT_ULL(FLOW_DISSECTOR_KEY_ETH_ADDRS)))
                return -EOPNOTSUPP;

        if (flow_rule_match_has_control_flags(rule, f->common.extack))
                return -EOPNOTSUPP;

        if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
                struct flow_match_eth_addrs match;

                flow_rule_match_eth_addrs(rule, &match);
                ether_addr_copy(stream->dmac, match.key->dst);
                if (!is_zero_ether_addr(match.mask->src))
                        return -EOPNOTSUPP;
        } 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.mask->vlan_priority)
                        stream->prio = match.key->vlan_priority;
                else
                        stream->prio = -1;

                if (!match.mask->vlan_id)
                        return -EOPNOTSUPP;
                stream->vid = match.key->vlan_id;
        } else {
                return -EOPNOTSUPP;
        }

        stream->id = f->cookie;

        return 0;
}

static int vsc9959_mact_stream_set(struct ocelot *ocelot,
                                   struct felix_stream *stream,
                                   struct netlink_ext_ack *extack)
{
        enum macaccess_entry_type type;
        int ret, sfid, ssid;
        u32 vid, dst_idx;
        u8 mac[ETH_ALEN];

        ether_addr_copy(mac, stream->dmac);
        vid = stream->vid;

        /* Stream identification desn't support to add a stream with non
         * existent MAC (The MAC entry has not been learned in MAC table).
         */
        ret = ocelot_mact_lookup(ocelot, &dst_idx, mac, vid, &type);
        if (ret) {
                if (extack)
                        NL_SET_ERR_MSG_MOD(extack, "Stream is not learned in MAC table");
                return -EOPNOTSUPP;
        }

        if ((stream->sfid_valid || stream->ssid_valid) &&
            type == ENTRYTYPE_NORMAL)
                type = ENTRYTYPE_LOCKED;

        sfid = stream->sfid_valid ? stream->sfid : -1;
        ssid = stream->ssid_valid ? stream->ssid : -1;

        ret = ocelot_mact_learn_streamdata(ocelot, dst_idx, mac, vid, type,
                                           sfid, ssid);

        return ret;
}

static struct felix_stream *
vsc9959_stream_table_lookup(struct list_head *stream_list,
                            struct felix_stream *stream)
{
        struct felix_stream *tmp;

        list_for_each_entry(tmp, stream_list, list)
                if (ether_addr_equal(tmp->dmac, stream->dmac) &&
                    tmp->vid == stream->vid)
                        return tmp;

        return NULL;
}

static int vsc9959_stream_table_add(struct ocelot *ocelot,
                                    struct list_head *stream_list,
                                    struct felix_stream *stream,
                                    struct netlink_ext_ack *extack)
{
        struct felix_stream *stream_entry;
        int ret;

        stream_entry = kmemdup(stream, sizeof(*stream_entry), GFP_KERNEL);
        if (!stream_entry)
                return -ENOMEM;

        if (!stream->dummy) {
                ret = vsc9959_mact_stream_set(ocelot, stream_entry, extack);
                if (ret) {
                        kfree(stream_entry);
                        return ret;
                }
        }

        list_add_tail(&stream_entry->list, stream_list);

        return 0;
}

static struct felix_stream *
vsc9959_stream_table_get(struct list_head *stream_list, unsigned long id)
{
        struct felix_stream *tmp;

        list_for_each_entry(tmp, stream_list, list)
                if (tmp->id == id)
                        return tmp;

        return NULL;
}

static void vsc9959_stream_table_del(struct ocelot *ocelot,
                                     struct felix_stream *stream)
{
        if (!stream->dummy)
                vsc9959_mact_stream_set(ocelot, stream, NULL);

        list_del(&stream->list);
        kfree(stream);
}

static u32 vsc9959_sfi_access_status(struct ocelot *ocelot)
{
        return ocelot_read(ocelot, ANA_TABLES_SFIDACCESS);
}

static int vsc9959_psfp_sfi_set(struct ocelot *ocelot,
                                struct felix_stream_filter *sfi)
{
        u32 val;

        if (sfi->index > VSC9959_PSFP_SFID_MAX)
                return -EINVAL;

        if (!sfi->enable) {
                ocelot_write(ocelot, ANA_TABLES_SFIDTIDX_SFID_INDEX(sfi->index),
                             ANA_TABLES_SFIDTIDX);

                val = ANA_TABLES_SFIDACCESS_SFID_TBL_CMD(SFIDACCESS_CMD_WRITE);
                ocelot_write(ocelot, val, ANA_TABLES_SFIDACCESS);

                return readx_poll_timeout(vsc9959_sfi_access_status, ocelot, val,
                                          (!ANA_TABLES_SFIDACCESS_SFID_TBL_CMD(val)),
                                          10, 100000);
        }

        if (sfi->sgid > VSC9959_PSFP_GATE_ID_MAX ||
            sfi->fmid > VSC9959_PSFP_POLICER_MAX)
                return -EINVAL;

        ocelot_write(ocelot,
                     (sfi->sg_valid ? ANA_TABLES_SFIDTIDX_SGID_VALID : 0) |
                     ANA_TABLES_SFIDTIDX_SGID(sfi->sgid) |
                     (sfi->fm_valid ? ANA_TABLES_SFIDTIDX_POL_ENA : 0) |
                     ANA_TABLES_SFIDTIDX_POL_IDX(sfi->fmid) |
                     ANA_TABLES_SFIDTIDX_SFID_INDEX(sfi->index),
                     ANA_TABLES_SFIDTIDX);

        ocelot_write(ocelot,
                     (sfi->prio_valid ? ANA_TABLES_SFIDACCESS_IGR_PRIO_MATCH_ENA : 0) |
                     ANA_TABLES_SFIDACCESS_IGR_PRIO(sfi->prio) |
                     ANA_TABLES_SFIDACCESS_MAX_SDU_LEN(sfi->maxsdu) |
                     ANA_TABLES_SFIDACCESS_SFID_TBL_CMD(SFIDACCESS_CMD_WRITE),
                     ANA_TABLES_SFIDACCESS);

        return readx_poll_timeout(vsc9959_sfi_access_status, ocelot, val,
                                  (!ANA_TABLES_SFIDACCESS_SFID_TBL_CMD(val)),
                                  10, 100000);
}

static int vsc9959_psfp_sfidmask_set(struct ocelot *ocelot, u32 sfid, int ports)
{
        u32 val;

        ocelot_rmw(ocelot,
                   ANA_TABLES_SFIDTIDX_SFID_INDEX(sfid),
                   ANA_TABLES_SFIDTIDX_SFID_INDEX_M,
                   ANA_TABLES_SFIDTIDX);

        ocelot_write(ocelot,
                     ANA_TABLES_SFID_MASK_IGR_PORT_MASK(ports) |
                     ANA_TABLES_SFID_MASK_IGR_SRCPORT_MATCH_ENA,
                     ANA_TABLES_SFID_MASK);

        ocelot_rmw(ocelot,
                   ANA_TABLES_SFIDACCESS_SFID_TBL_CMD(SFIDACCESS_CMD_WRITE),
                   ANA_TABLES_SFIDACCESS_SFID_TBL_CMD_M,
                   ANA_TABLES_SFIDACCESS);

        return readx_poll_timeout(vsc9959_sfi_access_status, ocelot, val,
                                  (!ANA_TABLES_SFIDACCESS_SFID_TBL_CMD(val)),
                                  10, 100000);
}

static int vsc9959_psfp_sfi_list_add(struct ocelot *ocelot,
                                     struct felix_stream_filter *sfi,
                                     struct list_head *pos)
{
        struct felix_stream_filter *sfi_entry;
        int ret;

        sfi_entry = kmemdup(sfi, sizeof(*sfi_entry), GFP_KERNEL);
        if (!sfi_entry)
                return -ENOMEM;

        refcount_set(&sfi_entry->refcount, 1);

        ret = vsc9959_psfp_sfi_set(ocelot, sfi_entry);
        if (ret) {
                kfree(sfi_entry);
                return ret;
        }

        vsc9959_psfp_sfidmask_set(ocelot, sfi->index, sfi->portmask);

        list_add(&sfi_entry->list, pos);

        return 0;
}

static int vsc9959_psfp_sfi_table_add(struct ocelot *ocelot,
                                      struct felix_stream_filter *sfi)
{
        struct list_head *pos, *q, *last;
        struct felix_stream_filter *tmp;
        struct ocelot_psfp_list *psfp;
        u32 insert = 0;

        psfp = &ocelot->psfp;
        last = &psfp->sfi_list;

        list_for_each_safe(pos, q, &psfp->sfi_list) {
                tmp = list_entry(pos, struct felix_stream_filter, list);
                if (sfi->sg_valid == tmp->sg_valid &&
                    sfi->fm_valid == tmp->fm_valid &&
                    sfi->portmask == tmp->portmask &&
                    tmp->sgid == sfi->sgid &&
                    tmp->fmid == sfi->fmid) {
                        sfi->index = tmp->index;
                        refcount_inc(&tmp->refcount);
                        return 0;
                }
                /* Make sure that the index is increasing in order. */
                if (tmp->index == insert) {
                        last = pos;
                        insert++;
                }
        }
        sfi->index = insert;

        return vsc9959_psfp_sfi_list_add(ocelot, sfi, last);
}

static int vsc9959_psfp_sfi_table_add2(struct ocelot *ocelot,
                                       struct felix_stream_filter *sfi,
                                       struct felix_stream_filter *sfi2)
{
        struct felix_stream_filter *tmp;
        struct list_head *pos, *q, *last;
        struct ocelot_psfp_list *psfp;
        u32 insert = 0;
        int ret;

        psfp = &ocelot->psfp;
        last = &psfp->sfi_list;

        list_for_each_safe(pos, q, &psfp->sfi_list) {
                tmp = list_entry(pos, struct felix_stream_filter, list);
                /* Make sure that the index is increasing in order. */
                if (tmp->index >= insert + 2)
                        break;

                insert = tmp->index + 1;
                last = pos;
        }
        sfi->index = insert;

        ret = vsc9959_psfp_sfi_list_add(ocelot, sfi, last);
        if (ret)
                return ret;

        sfi2->index = insert + 1;

        return vsc9959_psfp_sfi_list_add(ocelot, sfi2, last->next);
}

static struct felix_stream_filter *
vsc9959_psfp_sfi_table_get(struct list_head *sfi_list, u32 index)
{
        struct felix_stream_filter *tmp;

        list_for_each_entry(tmp, sfi_list, list)
                if (tmp->index == index)
                        return tmp;

        return NULL;
}

static void vsc9959_psfp_sfi_table_del(struct ocelot *ocelot, u32 index)
{
        struct felix_stream_filter *tmp, *n;
        struct ocelot_psfp_list *psfp;
        u8 z;

        psfp = &ocelot->psfp;

        list_for_each_entry_safe(tmp, n, &psfp->sfi_list, list)
                if (tmp->index == index) {
                        z = refcount_dec_and_test(&tmp->refcount);
                        if (z) {
                                tmp->enable = 0;
                                vsc9959_psfp_sfi_set(ocelot, tmp);
                                list_del(&tmp->list);
                                kfree(tmp);
                        }
                        break;
                }
}

static void vsc9959_psfp_parse_gate(const struct flow_action_entry *entry,
                                    struct felix_stream_gate *sgi)
{
        sgi->index = entry->hw_index;
        sgi->ipv_valid = (entry->gate.prio < 0) ? 0 : 1;
        sgi->init_ipv = (sgi->ipv_valid) ? entry->gate.prio : 0;
        sgi->basetime = entry->gate.basetime;
        sgi->cycletime = entry->gate.cycletime;
        sgi->num_entries = entry->gate.num_entries;
        sgi->enable = 1;

        memcpy(sgi->entries, entry->gate.entries,
               entry->gate.num_entries * sizeof(struct action_gate_entry));
}

static u32 vsc9959_sgi_cfg_status(struct ocelot *ocelot)
{
        return ocelot_read(ocelot, ANA_SG_ACCESS_CTRL);
}

static int vsc9959_psfp_sgi_set(struct ocelot *ocelot,
                                struct felix_stream_gate *sgi)
{
        struct action_gate_entry *e;
        struct timespec64 base_ts;
        u32 interval_sum = 0;
        u32 val;
        int i;

        if (sgi->index > VSC9959_PSFP_GATE_ID_MAX)
                return -EINVAL;

        ocelot_write(ocelot, ANA_SG_ACCESS_CTRL_SGID(sgi->index),
                     ANA_SG_ACCESS_CTRL);

        if (!sgi->enable) {
                ocelot_rmw(ocelot, ANA_SG_CONFIG_REG_3_INIT_GATE_STATE,
                           ANA_SG_CONFIG_REG_3_INIT_GATE_STATE |
                           ANA_SG_CONFIG_REG_3_GATE_ENABLE,
                           ANA_SG_CONFIG_REG_3);

                return 0;
        }

        if (sgi->cycletime < VSC9959_PSFP_GATE_CYCLETIME_MIN ||
            sgi->cycletime > NSEC_PER_SEC)
                return -EINVAL;

        if (sgi->num_entries > VSC9959_PSFP_GATE_LIST_NUM)
                return -EINVAL;

        vsc9959_new_base_time(ocelot, sgi->basetime, sgi->cycletime, &base_ts);
        ocelot_write(ocelot, base_ts.tv_nsec, ANA_SG_CONFIG_REG_1);
        val = lower_32_bits(base_ts.tv_sec);
        ocelot_write(ocelot, val, ANA_SG_CONFIG_REG_2);

        val = upper_32_bits(base_ts.tv_sec);
        ocelot_write(ocelot,
                     (sgi->ipv_valid ? ANA_SG_CONFIG_REG_3_IPV_VALID : 0) |
                     ANA_SG_CONFIG_REG_3_INIT_IPV(sgi->init_ipv) |
                     ANA_SG_CONFIG_REG_3_GATE_ENABLE |
                     ANA_SG_CONFIG_REG_3_LIST_LENGTH(sgi->num_entries) |
                     ANA_SG_CONFIG_REG_3_INIT_GATE_STATE |
                     ANA_SG_CONFIG_REG_3_BASE_TIME_SEC_MSB(val),
                     ANA_SG_CONFIG_REG_3);

        ocelot_write(ocelot, sgi->cycletime, ANA_SG_CONFIG_REG_4);

        e = sgi->entries;
        for (i = 0; i < sgi->num_entries; i++) {
                u32 ips = (e[i].ipv < 0) ? 0 : (e[i].ipv + 8);

                ocelot_write_rix(ocelot, ANA_SG_GCL_GS_CONFIG_IPS(ips) |
                                 (e[i].gate_state ?
                                  ANA_SG_GCL_GS_CONFIG_GATE_STATE : 0),
                                 ANA_SG_GCL_GS_CONFIG, i);

                interval_sum += e[i].interval;
                ocelot_write_rix(ocelot, interval_sum, ANA_SG_GCL_TI_CONFIG, i);
        }

        ocelot_rmw(ocelot, ANA_SG_ACCESS_CTRL_CONFIG_CHANGE,
                   ANA_SG_ACCESS_CTRL_CONFIG_CHANGE,
                   ANA_SG_ACCESS_CTRL);

        return readx_poll_timeout(vsc9959_sgi_cfg_status, ocelot, val,
                                  (!(ANA_SG_ACCESS_CTRL_CONFIG_CHANGE & val)),
                                  10, 100000);
}

static int vsc9959_psfp_sgi_table_add(struct ocelot *ocelot,
                                      struct felix_stream_gate *sgi)
{
        struct felix_stream_gate_entry *tmp;
        struct ocelot_psfp_list *psfp;
        int ret;

        psfp = &ocelot->psfp;

        list_for_each_entry(tmp, &psfp->sgi_list, list)
                if (tmp->index == sgi->index) {
                        refcount_inc(&tmp->refcount);
                        return 0;
                }

        tmp = kzalloc_obj(*tmp);
        if (!tmp)
                return -ENOMEM;

        ret = vsc9959_psfp_sgi_set(ocelot, sgi);
        if (ret) {
                kfree(tmp);
                return ret;
        }

        tmp->index = sgi->index;
        refcount_set(&tmp->refcount, 1);
        list_add_tail(&tmp->list, &psfp->sgi_list);

        return 0;
}

static void vsc9959_psfp_sgi_table_del(struct ocelot *ocelot,
                                       u32 index)
{
        struct felix_stream_gate_entry *tmp, *n;
        struct felix_stream_gate sgi = {0};
        struct ocelot_psfp_list *psfp;
        u8 z;

        psfp = &ocelot->psfp;

        list_for_each_entry_safe(tmp, n, &psfp->sgi_list, list)
                if (tmp->index == index) {
                        z = refcount_dec_and_test(&tmp->refcount);
                        if (z) {
                                sgi.index = index;
                                sgi.enable = 0;
                                vsc9959_psfp_sgi_set(ocelot, &sgi);
                                list_del(&tmp->list);
                                kfree(tmp);
                        }
                        break;
                }
}

static int vsc9959_psfp_filter_add(struct ocelot *ocelot, int port,
                                   struct flow_cls_offload *f)
{
        struct netlink_ext_ack *extack = f->common.extack;
        struct felix_stream_filter old_sfi, *sfi_entry;
        struct felix_stream_filter sfi = {0};
        const struct flow_action_entry *a;
        struct felix_stream *stream_entry;
        struct felix_stream stream = {0};
        struct felix_stream_gate *sgi;
        struct ocelot_psfp_list *psfp;
        struct ocelot_policer pol;
        int ret, i, size;
        u64 rate, burst;
        u32 index;

        psfp = &ocelot->psfp;

        ret = vsc9959_stream_identify(f, &stream);
        if (ret) {
                NL_SET_ERR_MSG_MOD(extack, "Only can match on VID, PCP, and dest MAC");
                return ret;
        }

        mutex_lock(&psfp->lock);

        flow_action_for_each(i, a, &f->rule->action) {
                switch (a->id) {
                case FLOW_ACTION_GATE:
                        size = struct_size(sgi, entries, a->gate.num_entries);
                        sgi = kzalloc(size, GFP_KERNEL);
                        if (!sgi) {
                                ret = -ENOMEM;
                                goto err;
                        }
                        vsc9959_psfp_parse_gate(a, sgi);
                        ret = vsc9959_psfp_sgi_table_add(ocelot, sgi);
                        if (ret) {
                                kfree(sgi);
                                goto err;
                        }
                        sfi.sg_valid = 1;
                        sfi.sgid = sgi->index;
                        kfree(sgi);
                        break;
                case FLOW_ACTION_POLICE:
                        index = a->hw_index + VSC9959_PSFP_POLICER_BASE;
                        if (index > VSC9959_PSFP_POLICER_MAX) {
                                ret = -EINVAL;
                                goto err;
                        }

                        rate = a->police.rate_bytes_ps;
                        burst = rate * PSCHED_NS2TICKS(a->police.burst);
                        pol = (struct ocelot_policer) {
                                .burst = div_u64(burst, PSCHED_TICKS_PER_SEC),
                                .rate = div_u64(rate, 1000) * 8,
                        };
                        ret = ocelot_vcap_policer_add(ocelot, index, &pol);
                        if (ret)
                                goto err;

                        sfi.fm_valid = 1;
                        sfi.fmid = index;
                        sfi.maxsdu = a->police.mtu;
                        break;
                default:
                        mutex_unlock(&psfp->lock);
                        return -EOPNOTSUPP;
                }
        }

        stream.ports = BIT(port);
        stream.port = port;

        sfi.portmask = stream.ports;
        sfi.prio_valid = (stream.prio < 0 ? 0 : 1);
        sfi.prio = (sfi.prio_valid ? stream.prio : 0);
        sfi.enable = 1;

        /* Check if stream is set. */
        stream_entry = vsc9959_stream_table_lookup(&psfp->stream_list, &stream);
        if (stream_entry) {
                if (stream_entry->ports & BIT(port)) {
                        NL_SET_ERR_MSG_MOD(extack,
                                           "The stream is added on this port");
                        ret = -EEXIST;
                        goto err;
                }

                if (stream_entry->ports != BIT(stream_entry->port)) {
                        NL_SET_ERR_MSG_MOD(extack,
                                           "The stream is added on two ports");
                        ret = -EEXIST;
                        goto err;
                }

                stream_entry->ports |= BIT(port);
                stream.ports = stream_entry->ports;

                sfi_entry = vsc9959_psfp_sfi_table_get(&psfp->sfi_list,
                                                       stream_entry->sfid);
                memcpy(&old_sfi, sfi_entry, sizeof(old_sfi));

                vsc9959_psfp_sfi_table_del(ocelot, stream_entry->sfid);

                old_sfi.portmask = stream_entry->ports;
                sfi.portmask = stream.ports;

                if (stream_entry->port > port) {
                        ret = vsc9959_psfp_sfi_table_add2(ocelot, &sfi,
                                                          &old_sfi);
                        stream_entry->dummy = true;
                } else {
                        ret = vsc9959_psfp_sfi_table_add2(ocelot, &old_sfi,
                                                          &sfi);
                        stream.dummy = true;
                }
                if (ret)
                        goto err;

                stream_entry->sfid = old_sfi.index;
        } else {
                ret = vsc9959_psfp_sfi_table_add(ocelot, &sfi);
                if (ret)
                        goto err;
        }

        stream.sfid = sfi.index;
        stream.sfid_valid = 1;
        ret = vsc9959_stream_table_add(ocelot, &psfp->stream_list,
                                       &stream, extack);
        if (ret) {
                vsc9959_psfp_sfi_table_del(ocelot, stream.sfid);
                goto err;
        }

        mutex_unlock(&psfp->lock);

        return 0;

err:
        if (sfi.sg_valid)
                vsc9959_psfp_sgi_table_del(ocelot, sfi.sgid);

        if (sfi.fm_valid)
                ocelot_vcap_policer_del(ocelot, sfi.fmid);

        mutex_unlock(&psfp->lock);

        return ret;
}

static int vsc9959_psfp_filter_del(struct ocelot *ocelot,
                                   struct flow_cls_offload *f)
{
        struct felix_stream *stream, tmp, *stream_entry;
        struct ocelot_psfp_list *psfp = &ocelot->psfp;
        static struct felix_stream_filter *sfi;

        mutex_lock(&psfp->lock);

        stream = vsc9959_stream_table_get(&psfp->stream_list, f->cookie);
        if (!stream) {
                mutex_unlock(&psfp->lock);
                return -ENOMEM;
        }

        sfi = vsc9959_psfp_sfi_table_get(&psfp->sfi_list, stream->sfid);
        if (!sfi) {
                mutex_unlock(&psfp->lock);
                return -ENOMEM;
        }

        if (sfi->sg_valid)
                vsc9959_psfp_sgi_table_del(ocelot, sfi->sgid);

        if (sfi->fm_valid)
                ocelot_vcap_policer_del(ocelot, sfi->fmid);

        vsc9959_psfp_sfi_table_del(ocelot, stream->sfid);

        memcpy(&tmp, stream, sizeof(tmp));

        stream->sfid_valid = 0;
        vsc9959_stream_table_del(ocelot, stream);

        stream_entry = vsc9959_stream_table_lookup(&psfp->stream_list, &tmp);
        if (stream_entry) {
                stream_entry->ports = BIT(stream_entry->port);
                if (stream_entry->dummy) {
                        stream_entry->dummy = false;
                        vsc9959_mact_stream_set(ocelot, stream_entry, NULL);
                }
                vsc9959_psfp_sfidmask_set(ocelot, stream_entry->sfid,
                                          stream_entry->ports);
        }

        mutex_unlock(&psfp->lock);

        return 0;
}

static void vsc9959_update_sfid_stats(struct ocelot *ocelot,
                                      struct felix_stream_filter *sfi)
{
        struct felix_stream_filter_counters *s = &sfi->stats;
        u32 match, not_pass_gate, not_pass_sdu, red;
        u32 sfid = sfi->index;

        lockdep_assert_held(&ocelot->stat_view_lock);

        ocelot_rmw(ocelot, SYS_STAT_CFG_STAT_VIEW(sfid),
                   SYS_STAT_CFG_STAT_VIEW_M,
                   SYS_STAT_CFG);

        match = ocelot_read(ocelot, SYS_COUNT_SF_MATCHING_FRAMES);
        not_pass_gate = ocelot_read(ocelot, SYS_COUNT_SF_NOT_PASSING_FRAMES);
        not_pass_sdu = ocelot_read(ocelot, SYS_COUNT_SF_NOT_PASSING_SDU);
        red = ocelot_read(ocelot, SYS_COUNT_SF_RED_FRAMES);

        /* Clear the PSFP counter. */
        ocelot_write(ocelot,
                     SYS_STAT_CFG_STAT_VIEW(sfid) |
                     SYS_STAT_CFG_STAT_CLEAR_SHOT(0x10),
                     SYS_STAT_CFG);

        s->match += match;
        s->not_pass_gate += not_pass_gate;
        s->not_pass_sdu += not_pass_sdu;
        s->red += red;
}

/* Caller must hold &ocelot->stat_view_lock */
static void vsc9959_update_stats(struct ocelot *ocelot)
{
        struct ocelot_psfp_list *psfp = &ocelot->psfp;
        struct felix_stream_filter *sfi;

        mutex_lock(&psfp->lock);

        list_for_each_entry(sfi, &psfp->sfi_list, list)
                vsc9959_update_sfid_stats(ocelot, sfi);

        mutex_unlock(&psfp->lock);
}

static int vsc9959_psfp_stats_get(struct ocelot *ocelot,
                                  struct flow_cls_offload *f,
                                  struct flow_stats *stats)
{
        struct ocelot_psfp_list *psfp = &ocelot->psfp;
        struct felix_stream_filter_counters *s;
        static struct felix_stream_filter *sfi;
        struct felix_stream *stream;

        stream = vsc9959_stream_table_get(&psfp->stream_list, f->cookie);
        if (!stream)
                return -ENOMEM;

        sfi = vsc9959_psfp_sfi_table_get(&psfp->sfi_list, stream->sfid);
        if (!sfi)
                return -EINVAL;

        mutex_lock(&ocelot->stat_view_lock);

        vsc9959_update_sfid_stats(ocelot, sfi);

        s = &sfi->stats;
        stats->pkts = s->match;
        stats->drops = s->not_pass_gate + s->not_pass_sdu + s->red;

        memset(s, 0, sizeof(*s));

        mutex_unlock(&ocelot->stat_view_lock);

        return 0;
}

static void vsc9959_psfp_init(struct ocelot *ocelot)
{
        struct ocelot_psfp_list *psfp = &ocelot->psfp;

        INIT_LIST_HEAD(&psfp->stream_list);
        INIT_LIST_HEAD(&psfp->sfi_list);
        INIT_LIST_HEAD(&psfp->sgi_list);
        mutex_init(&psfp->lock);
}

/* When using cut-through forwarding and the egress port runs at a higher data
 * rate than the ingress port, the packet currently under transmission would
 * suffer an underrun since it would be transmitted faster than it is received.
 * The Felix switch implementation of cut-through forwarding does not check in
 * hardware whether this condition is satisfied or not, so we must restrict the
 * list of ports that have cut-through forwarding enabled on egress to only be
 * the ports operating at the lowest link speed within their respective
 * forwarding domain.
 */
static void vsc9959_cut_through_fwd(struct ocelot *ocelot)
{
        struct felix *felix = ocelot_to_felix(ocelot);
        struct dsa_switch *ds = felix->ds;
        int tc, port, other_port;

        lockdep_assert_held(&ocelot->fwd_domain_lock);

        for (port = 0; port < ocelot->num_phys_ports; port++) {
                struct ocelot_port *ocelot_port = ocelot->ports[port];
                struct ocelot_mm_state *mm = &ocelot->mm[port];
                int min_speed = ocelot_port->speed;
                unsigned long mask = 0;
                u32 tmp, val = 0;

                /* Disable cut-through on ports that are down */
                if (ocelot_port->speed <= 0)
                        goto set;

                if (dsa_is_cpu_port(ds, port)) {
                        /* Ocelot switches forward from the NPI port towards
                         * any port, regardless of it being in the NPI port's
                         * forwarding domain or not.
                         */
                        mask = dsa_user_ports(ds);
                } else {
                        mask = ocelot_get_bridge_fwd_mask(ocelot, port);
                        mask &= ~BIT(port);
                        if (ocelot->npi >= 0)
                                mask |= BIT(ocelot->npi);
                        else
                                mask |= ocelot_port_assigned_dsa_8021q_cpu_mask(ocelot,
                                                                                port);
                }

                /* Calculate the minimum link speed, among the ports that are
                 * up, of this source port's forwarding domain.
                 */
                for_each_set_bit(other_port, &mask, ocelot->num_phys_ports) {
                        struct ocelot_port *other_ocelot_port;

                        other_ocelot_port = ocelot->ports[other_port];
                        if (other_ocelot_port->speed <= 0)
                                continue;

                        if (min_speed > other_ocelot_port->speed)
                                min_speed = other_ocelot_port->speed;
                }

                /* Enable cut-through forwarding for all traffic classes that
                 * don't have oversized dropping enabled, since this check is
                 * bypassed in cut-through mode. Also exclude preemptible
                 * traffic classes, since these would hang the port for some
                 * reason, if sent as cut-through.
                 */
                if (ocelot_port->speed == min_speed) {
                        val = GENMASK(7, 0) & ~mm->active_preemptible_tcs;

                        for (tc = 0; tc < OCELOT_NUM_TC; tc++)
                                if (vsc9959_port_qmaxsdu_get(ocelot, port, tc))
                                        val &= ~BIT(tc);
                }

set:
                tmp = ocelot_read_rix(ocelot, ANA_CUT_THRU_CFG, port);
                if (tmp == val)
                        continue;

                dev_dbg(ocelot->dev,
                        "port %d fwd mask 0x%lx speed %d min_speed %d, %s cut-through forwarding on TC mask 0x%x\n",
                        port, mask, ocelot_port->speed, min_speed,
                        val ? "enabling" : "disabling", val);

                ocelot_write_rix(ocelot, val, ANA_CUT_THRU_CFG, port);
        }
}

/* The INTB interrupt is shared between for PTP TX timestamp availability
 * notification and MAC Merge status change on each port.
 */
static irqreturn_t vsc9959_irq_handler(int irq, void *data)
{
        struct ocelot *ocelot = data;

        ocelot_get_txtstamp(ocelot);
        ocelot_mm_irq(ocelot);

        return IRQ_HANDLED;
}

static int vsc9959_request_irq(struct ocelot *ocelot)
{
        struct pci_dev *pdev = to_pci_dev(ocelot->dev);

        return devm_request_threaded_irq(ocelot->dev, pdev->irq, NULL,
                                         &vsc9959_irq_handler, IRQF_ONESHOT,
                                         "felix-intb", ocelot);
}

static const struct ocelot_ops vsc9959_ops = {
        .reset                  = vsc9959_reset,
        .wm_enc                 = vsc9959_wm_enc,
        .wm_dec                 = vsc9959_wm_dec,
        .wm_stat                = vsc9959_wm_stat,
        .port_to_netdev         = felix_port_to_netdev,
        .netdev_to_port         = felix_netdev_to_port,
        .psfp_init              = vsc9959_psfp_init,
        .psfp_filter_add        = vsc9959_psfp_filter_add,
        .psfp_filter_del        = vsc9959_psfp_filter_del,
        .psfp_stats_get         = vsc9959_psfp_stats_get,
        .cut_through_fwd        = vsc9959_cut_through_fwd,
        .tas_clock_adjust       = vsc9959_tas_clock_adjust,
        .update_stats           = vsc9959_update_stats,
        .tas_guard_bands_update = vsc9959_tas_guard_bands_update,
};

static const struct felix_info felix_info_vsc9959 = {
        .resources              = vsc9959_resources,
        .num_resources          = ARRAY_SIZE(vsc9959_resources),
        .resource_names         = vsc9959_resource_names,
        .regfields              = vsc9959_regfields,
        .map                    = vsc9959_regmap,
        .ops                    = &vsc9959_ops,
        .vcap                   = vsc9959_vcap_props,
        .vcap_pol_base          = VSC9959_VCAP_POLICER_BASE,
        .vcap_pol_max           = VSC9959_VCAP_POLICER_MAX,
        .vcap_pol_base2         = 0,
        .vcap_pol_max2          = 0,
        .num_mact_rows          = 2048,
        .num_ports              = VSC9959_NUM_PORTS,
        .quirks                 = FELIX_MAC_QUIRKS,
        .quirk_no_xtr_irq       = true,
        .ptp_caps               = &vsc9959_ptp_caps,
        .mdio_bus_alloc         = vsc9959_mdio_bus_alloc,
        .mdio_bus_free          = vsc9959_mdio_bus_free,
        .port_modes             = vsc9959_port_modes,
        .port_setup_tc          = vsc9959_port_setup_tc,
        .port_sched_speed_set   = vsc9959_sched_speed_set,
        .request_irq            = vsc9959_request_irq,
};

static int felix_pci_probe(struct pci_dev *pdev,
                           const struct pci_device_id *id)
{
        struct device *dev = &pdev->dev;
        resource_size_t switch_base;
        int err;

        err = pci_enable_device(pdev);
        if (err) {
                dev_err(dev, "device enable failed: %pe\n", ERR_PTR(err));
                return err;
        }

        pci_set_master(pdev);

        switch_base = pci_resource_start(pdev, VSC9959_SWITCH_PCI_BAR);

        err = felix_register_switch(dev, switch_base, OCELOT_NUM_TC,
                                    true, true, DSA_TAG_PROTO_OCELOT,
                                    &felix_info_vsc9959);
        if (err)
                goto out_disable;

        return 0;

out_disable:
        pci_disable_device(pdev);
        return err;
}

static void felix_pci_remove(struct pci_dev *pdev)
{
        struct felix *felix = pci_get_drvdata(pdev);

        if (!felix)
                return;

        dsa_unregister_switch(felix->ds);

        pci_disable_device(pdev);
}

static void felix_pci_shutdown(struct pci_dev *pdev)
{
        struct felix *felix = pci_get_drvdata(pdev);

        if (!felix)
                return;

        dsa_switch_shutdown(felix->ds);

        pci_set_drvdata(pdev, NULL);
}

static struct pci_device_id felix_ids[] = {
        {
                /* NXP LS1028A */
                PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, 0xEEF0),
        },
        { 0, }
};
MODULE_DEVICE_TABLE(pci, felix_ids);

static struct pci_driver felix_vsc9959_pci_driver = {
        .name           = "mscc_felix",
        .id_table       = felix_ids,
        .probe          = felix_pci_probe,
        .remove         = felix_pci_remove,
        .shutdown       = felix_pci_shutdown,
};
module_pci_driver(felix_vsc9959_pci_driver);

MODULE_DESCRIPTION("Felix Switch driver");
MODULE_LICENSE("GPL v2");