#ifndef LINUX_SFP_H
#define LINUX_SFP_H

#include <linux/phy.h>

struct sfp_eeprom_base {
        u8 phys_id;
        u8 phys_ext_id;
        u8 connector;
#if defined __BIG_ENDIAN_BITFIELD
        u8 e10g_base_er:1;
        u8 e10g_base_lrm:1;
        u8 e10g_base_lr:1;
        u8 e10g_base_sr:1;
        u8 if_1x_sx:1;
        u8 if_1x_lx:1;
        u8 if_1x_copper_active:1;
        u8 if_1x_copper_passive:1;

        u8 escon_mmf_1310_led:1;
        u8 escon_smf_1310_laser:1;
        u8 sonet_oc192_short_reach:1;
        u8 sonet_reach_bit1:1;
        u8 sonet_reach_bit2:1;
        u8 sonet_oc48_long_reach:1;
        u8 sonet_oc48_intermediate_reach:1;
        u8 sonet_oc48_short_reach:1;

        u8 unallocated_5_7:1;
        u8 sonet_oc12_smf_long_reach:1;
        u8 sonet_oc12_smf_intermediate_reach:1;
        u8 sonet_oc12_short_reach:1;
        u8 unallocated_5_3:1;
        u8 sonet_oc3_smf_long_reach:1;
        u8 sonet_oc3_smf_intermediate_reach:1;
        u8 sonet_oc3_short_reach:1;

        u8 e_base_px:1;
        u8 e_base_bx10:1;
        u8 e100_base_fx:1;
        u8 e100_base_lx:1;
        u8 e1000_base_t:1;
        u8 e1000_base_cx:1;
        u8 e1000_base_lx:1;
        u8 e1000_base_sx:1;

        u8 fc_ll_v:1;
        u8 fc_ll_s:1;
        u8 fc_ll_i:1;
        u8 fc_ll_l:1;
        u8 fc_ll_m:1;
        u8 fc_tech_sa:1;
        u8 fc_tech_lc:1;
        u8 fc_tech_electrical_inter_enclosure:1;

        u8 fc_tech_electrical_intra_enclosure:1;
        u8 fc_tech_sn:1;
        u8 fc_tech_sl:1;
        u8 fc_tech_ll:1;
        u8 sfp_ct_active:1;
        u8 sfp_ct_passive:1;
        u8 unallocated_8_1:1;
        u8 unallocated_8_0:1;

        u8 fc_media_tw:1;
        u8 fc_media_tp:1;
        u8 fc_media_mi:1;
        u8 fc_media_tv:1;
        u8 fc_media_m6:1;
        u8 fc_media_m5:1;
        u8 unallocated_9_1:1;
        u8 fc_media_sm:1;

        u8 fc_speed_1200:1;
        u8 fc_speed_800:1;
        u8 fc_speed_1600:1;
        u8 fc_speed_400:1;
        u8 fc_speed_3200:1;
        u8 fc_speed_200:1;
        u8 unallocated_10_1:1;
        u8 fc_speed_100:1;
#elif defined __LITTLE_ENDIAN_BITFIELD
        u8 if_1x_copper_passive:1;
        u8 if_1x_copper_active:1;
        u8 if_1x_lx:1;
        u8 if_1x_sx:1;
        u8 e10g_base_sr:1;
        u8 e10g_base_lr:1;
        u8 e10g_base_lrm:1;
        u8 e10g_base_er:1;

        u8 sonet_oc3_short_reach:1;
        u8 sonet_oc3_smf_intermediate_reach:1;
        u8 sonet_oc3_smf_long_reach:1;
        u8 unallocated_5_3:1;
        u8 sonet_oc12_short_reach:1;
        u8 sonet_oc12_smf_intermediate_reach:1;
        u8 sonet_oc12_smf_long_reach:1;
        u8 unallocated_5_7:1;

        u8 sonet_oc48_short_reach:1;
        u8 sonet_oc48_intermediate_reach:1;
        u8 sonet_oc48_long_reach:1;
        u8 sonet_reach_bit2:1;
        u8 sonet_reach_bit1:1;
        u8 sonet_oc192_short_reach:1;
        u8 escon_smf_1310_laser:1;
        u8 escon_mmf_1310_led:1;

        u8 e1000_base_sx:1;
        u8 e1000_base_lx:1;
        u8 e1000_base_cx:1;
        u8 e1000_base_t:1;
        u8 e100_base_lx:1;
        u8 e100_base_fx:1;
        u8 e_base_bx10:1;
        u8 e_base_px:1;

        u8 fc_tech_electrical_inter_enclosure:1;
        u8 fc_tech_lc:1;
        u8 fc_tech_sa:1;
        u8 fc_ll_m:1;
        u8 fc_ll_l:1;
        u8 fc_ll_i:1;
        u8 fc_ll_s:1;
        u8 fc_ll_v:1;

        u8 unallocated_8_0:1;
        u8 unallocated_8_1:1;
        u8 sfp_ct_passive:1;
        u8 sfp_ct_active:1;
        u8 fc_tech_ll:1;
        u8 fc_tech_sl:1;
        u8 fc_tech_sn:1;
        u8 fc_tech_electrical_intra_enclosure:1;

        u8 fc_media_sm:1;
        u8 unallocated_9_1:1;
        u8 fc_media_m5:1;
        u8 fc_media_m6:1;
        u8 fc_media_tv:1;
        u8 fc_media_mi:1;
        u8 fc_media_tp:1;
        u8 fc_media_tw:1;

        u8 fc_speed_100:1;
        u8 unallocated_10_1:1;
        u8 fc_speed_200:1;
        u8 fc_speed_3200:1;
        u8 fc_speed_400:1;
        u8 fc_speed_1600:1;
        u8 fc_speed_800:1;
        u8 fc_speed_1200:1;
#else
#error Unknown Endian
#endif
        u8 encoding;
        u8 br_nominal;
        u8 rate_id;
        u8 link_len[6];
        char vendor_name[16];
        u8 extended_cc;
        char vendor_oui[3];
        char vendor_pn[16];
        char vendor_rev[4];
        union {
                __be16 optical_wavelength;
                __be16 cable_compliance;
                struct {
#if defined __BIG_ENDIAN_BITFIELD
                        u8 reserved60_2:6;
                        u8 fc_pi_4_app_h:1;
                        u8 sff8431_app_e:1;
                        u8 reserved61:8;
#elif defined __LITTLE_ENDIAN_BITFIELD
                        u8 sff8431_app_e:1;
                        u8 fc_pi_4_app_h:1;
                        u8 reserved60_2:6;
                        u8 reserved61:8;
#else
#error Unknown Endian
#endif
                } __packed passive;
                struct {
#if defined __BIG_ENDIAN_BITFIELD
                        u8 reserved60_4:4;
                        u8 fc_pi_4_lim:1;
                        u8 sff8431_lim:1;
                        u8 fc_pi_4_app_h:1;
                        u8 sff8431_app_e:1;
                        u8 reserved61:8;
#elif defined __LITTLE_ENDIAN_BITFIELD
                        u8 sff8431_app_e:1;
                        u8 fc_pi_4_app_h:1;
                        u8 sff8431_lim:1;
                        u8 fc_pi_4_lim:1;
                        u8 reserved60_4:4;
                        u8 reserved61:8;
#else
#error Unknown Endian
#endif
                } __packed active;
        } __packed;
        u8 reserved62;
        u8 cc_base;
} __packed;

struct sfp_eeprom_ext {
        __be16 options;
        u8 br_max;
        u8 br_min;
        char vendor_sn[16];
        char datecode[8];
        u8 diagmon;
        u8 enhopts;
        u8 sff8472_compliance;
        u8 cc_ext;
} __packed;

/**
 * struct sfp_eeprom_id - raw SFP module identification information
 * @base: base SFP module identification structure
 * @ext: extended SFP module identification structure
 *
 * See the SFF-8472 specification and related documents for the definition
 * of these structure members. This can be obtained from
 * https://www.snia.org/technology-communities/sff/specifications
 */
struct sfp_eeprom_id {
        struct sfp_eeprom_base base;
        struct sfp_eeprom_ext ext;
} __packed;

struct sfp_diag {
        __be16 temp_high_alarm;
        __be16 temp_low_alarm;
        __be16 temp_high_warn;
        __be16 temp_low_warn;
        __be16 volt_high_alarm;
        __be16 volt_low_alarm;
        __be16 volt_high_warn;
        __be16 volt_low_warn;
        __be16 bias_high_alarm;
        __be16 bias_low_alarm;
        __be16 bias_high_warn;
        __be16 bias_low_warn;
        __be16 txpwr_high_alarm;
        __be16 txpwr_low_alarm;
        __be16 txpwr_high_warn;
        __be16 txpwr_low_warn;
        __be16 rxpwr_high_alarm;
        __be16 rxpwr_low_alarm;
        __be16 rxpwr_high_warn;
        __be16 rxpwr_low_warn;
        __be16 laser_temp_high_alarm;
        __be16 laser_temp_low_alarm;
        __be16 laser_temp_high_warn;
        __be16 laser_temp_low_warn;
        __be16 tec_cur_high_alarm;
        __be16 tec_cur_low_alarm;
        __be16 tec_cur_high_warn;
        __be16 tec_cur_low_warn;
        __be32 cal_rxpwr4;
        __be32 cal_rxpwr3;
        __be32 cal_rxpwr2;
        __be32 cal_rxpwr1;
        __be32 cal_rxpwr0;
        __be16 cal_txi_slope;
        __be16 cal_txi_offset;
        __be16 cal_txpwr_slope;
        __be16 cal_txpwr_offset;
        __be16 cal_t_slope;
        __be16 cal_t_offset;
        __be16 cal_v_slope;
        __be16 cal_v_offset;
} __packed;

/* SFF8024 defined constants */
enum {
        SFF8024_ID_UNK                  = 0x00,
        SFF8024_ID_SFF_8472             = 0x02,
        SFF8024_ID_SFP                  = 0x03,
        SFF8024_ID_DWDM_SFP             = 0x0b,
        SFF8024_ID_QSFP_8438            = 0x0c,
        SFF8024_ID_QSFP_8436_8636       = 0x0d,
        SFF8024_ID_QSFP28_8636          = 0x11,
        SFF8024_ID_QSFP_DD              = 0x18,
        SFF8024_ID_OSFP                 = 0x19,
        SFF8024_ID_DSFP                 = 0x1B,
        SFF8024_ID_QSFP_PLUS_CMIS       = 0x1E,
        SFF8024_ID_SFP_DD_CMIS          = 0x1F,
        SFF8024_ID_SFP_PLUS_CMIS        = 0x20,

        SFF8024_ENCODING_UNSPEC         = 0x00,
        SFF8024_ENCODING_8B10B          = 0x01,
        SFF8024_ENCODING_4B5B           = 0x02,
        SFF8024_ENCODING_NRZ            = 0x03,
        SFF8024_ENCODING_8472_MANCHESTER= 0x04,
        SFF8024_ENCODING_8472_SONET     = 0x05,
        SFF8024_ENCODING_8472_64B66B    = 0x06,
        SFF8024_ENCODING_8436_MANCHESTER= 0x06,
        SFF8024_ENCODING_8436_SONET     = 0x04,
        SFF8024_ENCODING_8436_64B66B    = 0x05,
        SFF8024_ENCODING_256B257B       = 0x07,
        SFF8024_ENCODING_PAM4           = 0x08,

        SFF8024_CONNECTOR_UNSPEC        = 0x00,
        /* codes 01-05 not supportable on SFP, but some modules have single SC */
        SFF8024_CONNECTOR_SC            = 0x01,
        SFF8024_CONNECTOR_FIBERJACK     = 0x06,
        SFF8024_CONNECTOR_LC            = 0x07,
        SFF8024_CONNECTOR_MT_RJ         = 0x08,
        SFF8024_CONNECTOR_MU            = 0x09,
        SFF8024_CONNECTOR_SG            = 0x0a,
        SFF8024_CONNECTOR_OPTICAL_PIGTAIL= 0x0b,
        SFF8024_CONNECTOR_MPO_1X12      = 0x0c,
        SFF8024_CONNECTOR_MPO_2X16      = 0x0d,
        SFF8024_CONNECTOR_HSSDC_II      = 0x20,
        SFF8024_CONNECTOR_COPPER_PIGTAIL= 0x21,
        SFF8024_CONNECTOR_RJ45          = 0x22,
        SFF8024_CONNECTOR_NOSEPARATE    = 0x23,
        SFF8024_CONNECTOR_MXC_2X16      = 0x24,

        SFF8024_ECC_UNSPEC              = 0x00,
        SFF8024_ECC_100G_25GAUI_C2M_AOC = 0x01,
        SFF8024_ECC_100GBASE_SR4_25GBASE_SR = 0x02,
        SFF8024_ECC_100GBASE_LR4_25GBASE_LR = 0x03,
        SFF8024_ECC_100GBASE_ER4_25GBASE_ER = 0x04,
        SFF8024_ECC_100GBASE_SR10       = 0x05,
        SFF8024_ECC_100GBASE_CR4        = 0x0b,
        SFF8024_ECC_25GBASE_CR_S        = 0x0c,
        SFF8024_ECC_25GBASE_CR_N        = 0x0d,
        SFF8024_ECC_10GBASE_T_SFI       = 0x16,
        SFF8024_ECC_10GBASE_T_SR        = 0x1c,
        SFF8024_ECC_5GBASE_T            = 0x1d,
        SFF8024_ECC_2_5GBASE_T          = 0x1e,
};

/* SFP EEPROM registers */
enum {
        SFP_PHYS_ID                     = 0,

        SFP_PHYS_EXT_ID                 = 1,
        SFP_PHYS_EXT_ID_SFP             = 0x04,

        SFP_CONNECTOR                   = 2,
        SFP_COMPLIANCE                  = 3,
        SFP_ENCODING                    = 11,
        SFP_BR_NOMINAL                  = 12,
        SFP_RATE_ID                     = 13,
        SFF_RID_8079                    = 0x01,
        SFF_RID_8431_RX_ONLY            = 0x02,
        SFF_RID_8431_TX_ONLY            = 0x04,
        SFF_RID_8431                    = 0x06,
        SFF_RID_10G8G                   = 0x0e,

        SFP_LINK_LEN_SM_KM              = 14,
        SFP_LINK_LEN_SM_100M            = 15,
        SFP_LINK_LEN_50UM_OM2_10M       = 16,
        SFP_LINK_LEN_62_5UM_OM1_10M     = 17,
        SFP_LINK_LEN_COPPER_1M          = 18,
        SFP_LINK_LEN_50UM_OM4_10M       = 18,
        SFP_LINK_LEN_50UM_OM3_10M       = 19,
        SFP_VENDOR_NAME                 = 20,
        SFP_VENDOR_OUI                  = 37,
        SFP_VENDOR_PN                   = 40,
        SFP_VENDOR_REV                  = 56,
        SFP_OPTICAL_WAVELENGTH_MSB      = 60,
        SFP_OPTICAL_WAVELENGTH_LSB      = 61,
        SFP_CABLE_SPEC                  = 60,
        SFP_CC_BASE                     = 63,

        SFP_OPTIONS                     = 64,   /* 2 bytes, MSB, LSB */
        SFP_OPTIONS_HIGH_POWER_LEVEL    = BIT(13),
        SFP_OPTIONS_PAGING_A2           = BIT(12),
        SFP_OPTIONS_RETIMER             = BIT(11),
        SFP_OPTIONS_COOLED_XCVR         = BIT(10),
        SFP_OPTIONS_POWER_DECL          = BIT(9),
        SFP_OPTIONS_RX_LINEAR_OUT       = BIT(8),
        SFP_OPTIONS_RX_DECISION_THRESH  = BIT(7),
        SFP_OPTIONS_TUNABLE_TX          = BIT(6),
        SFP_OPTIONS_RATE_SELECT         = BIT(5),
        SFP_OPTIONS_TX_DISABLE          = BIT(4),
        SFP_OPTIONS_TX_FAULT            = BIT(3),
        SFP_OPTIONS_LOS_INVERTED        = BIT(2),
        SFP_OPTIONS_LOS_NORMAL          = BIT(1),

        SFP_BR_MAX                      = 66,
        SFP_BR_MIN                      = 67,
        SFP_VENDOR_SN                   = 68,
        SFP_DATECODE                    = 84,

        SFP_DIAGMON                     = 92,
        SFP_DIAGMON_DDM                 = BIT(6),
        SFP_DIAGMON_INT_CAL             = BIT(5),
        SFP_DIAGMON_EXT_CAL             = BIT(4),
        SFP_DIAGMON_RXPWR_AVG           = BIT(3),
        SFP_DIAGMON_ADDRMODE            = BIT(2),

        SFP_ENHOPTS                     = 93,
        SFP_ENHOPTS_ALARMWARN           = BIT(7),
        SFP_ENHOPTS_SOFT_TX_DISABLE     = BIT(6),
        SFP_ENHOPTS_SOFT_TX_FAULT       = BIT(5),
        SFP_ENHOPTS_SOFT_RX_LOS         = BIT(4),
        SFP_ENHOPTS_SOFT_RATE_SELECT    = BIT(3),
        SFP_ENHOPTS_APP_SELECT_SFF8079  = BIT(2),
        SFP_ENHOPTS_SOFT_RATE_SFF8431   = BIT(1),

        SFP_SFF8472_COMPLIANCE          = 94,
        SFP_SFF8472_COMPLIANCE_NONE     = 0x00,
        SFP_SFF8472_COMPLIANCE_REV9_3   = 0x01,
        SFP_SFF8472_COMPLIANCE_REV9_5   = 0x02,
        SFP_SFF8472_COMPLIANCE_REV10_2  = 0x03,
        SFP_SFF8472_COMPLIANCE_REV10_4  = 0x04,
        SFP_SFF8472_COMPLIANCE_REV11_0  = 0x05,
        SFP_SFF8472_COMPLIANCE_REV11_3  = 0x06,
        SFP_SFF8472_COMPLIANCE_REV11_4  = 0x07,
        SFP_SFF8472_COMPLIANCE_REV12_0  = 0x08,

        SFP_CC_EXT                      = 95,
};

/* SFP Diagnostics */
enum {
        /* Alarm and warnings stored MSB at lower address then LSB */
        SFP_TEMP_HIGH_ALARM             = 0,
        SFP_TEMP_LOW_ALARM              = 2,
        SFP_TEMP_HIGH_WARN              = 4,
        SFP_TEMP_LOW_WARN               = 6,
        SFP_VOLT_HIGH_ALARM             = 8,
        SFP_VOLT_LOW_ALARM              = 10,
        SFP_VOLT_HIGH_WARN              = 12,
        SFP_VOLT_LOW_WARN               = 14,
        SFP_BIAS_HIGH_ALARM             = 16,
        SFP_BIAS_LOW_ALARM              = 18,
        SFP_BIAS_HIGH_WARN              = 20,
        SFP_BIAS_LOW_WARN               = 22,
        SFP_TXPWR_HIGH_ALARM            = 24,
        SFP_TXPWR_LOW_ALARM             = 26,
        SFP_TXPWR_HIGH_WARN             = 28,
        SFP_TXPWR_LOW_WARN              = 30,
        SFP_RXPWR_HIGH_ALARM            = 32,
        SFP_RXPWR_LOW_ALARM             = 34,
        SFP_RXPWR_HIGH_WARN             = 36,
        SFP_RXPWR_LOW_WARN              = 38,
        SFP_LASER_TEMP_HIGH_ALARM       = 40,
        SFP_LASER_TEMP_LOW_ALARM        = 42,
        SFP_LASER_TEMP_HIGH_WARN        = 44,
        SFP_LASER_TEMP_LOW_WARN         = 46,
        SFP_TEC_CUR_HIGH_ALARM          = 48,
        SFP_TEC_CUR_LOW_ALARM           = 50,
        SFP_TEC_CUR_HIGH_WARN           = 52,
        SFP_TEC_CUR_LOW_WARN            = 54,
        SFP_CAL_RXPWR4                  = 56,
        SFP_CAL_RXPWR3                  = 60,
        SFP_CAL_RXPWR2                  = 64,
        SFP_CAL_RXPWR1                  = 68,
        SFP_CAL_RXPWR0                  = 72,
        SFP_CAL_TXI_SLOPE               = 76,
        SFP_CAL_TXI_OFFSET              = 78,
        SFP_CAL_TXPWR_SLOPE             = 80,
        SFP_CAL_TXPWR_OFFSET            = 82,
        SFP_CAL_T_SLOPE                 = 84,
        SFP_CAL_T_OFFSET                = 86,
        SFP_CAL_V_SLOPE                 = 88,
        SFP_CAL_V_OFFSET                = 90,
        SFP_CHKSUM                      = 95,

        SFP_TEMP                        = 96,
        SFP_VCC                         = 98,
        SFP_TX_BIAS                     = 100,
        SFP_TX_POWER                    = 102,
        SFP_RX_POWER                    = 104,
        SFP_LASER_TEMP                  = 106,
        SFP_TEC_CUR                     = 108,

        SFP_STATUS                      = 110,
        SFP_STATUS_TX_DISABLE           = BIT(7),
        SFP_STATUS_TX_DISABLE_FORCE     = BIT(6),
        SFP_STATUS_RS0_SELECT           = BIT(3),
        SFP_STATUS_TX_FAULT             = BIT(2),
        SFP_STATUS_RX_LOS               = BIT(1),
        SFP_ALARM0                      = 112,
        SFP_ALARM0_TEMP_HIGH            = BIT(7),
        SFP_ALARM0_TEMP_LOW             = BIT(6),
        SFP_ALARM0_VCC_HIGH             = BIT(5),
        SFP_ALARM0_VCC_LOW              = BIT(4),
        SFP_ALARM0_TX_BIAS_HIGH         = BIT(3),
        SFP_ALARM0_TX_BIAS_LOW          = BIT(2),
        SFP_ALARM0_TXPWR_HIGH           = BIT(1),
        SFP_ALARM0_TXPWR_LOW            = BIT(0),

        SFP_ALARM1                      = 113,
        SFP_ALARM1_RXPWR_HIGH           = BIT(7),
        SFP_ALARM1_RXPWR_LOW            = BIT(6),

        SFP_WARN0                       = 116,
        SFP_WARN0_TEMP_HIGH             = BIT(7),
        SFP_WARN0_TEMP_LOW              = BIT(6),
        SFP_WARN0_VCC_HIGH              = BIT(5),
        SFP_WARN0_VCC_LOW               = BIT(4),
        SFP_WARN0_TX_BIAS_HIGH          = BIT(3),
        SFP_WARN0_TX_BIAS_LOW           = BIT(2),
        SFP_WARN0_TXPWR_HIGH            = BIT(1),
        SFP_WARN0_TXPWR_LOW             = BIT(0),

        SFP_WARN1                       = 117,
        SFP_WARN1_RXPWR_HIGH            = BIT(7),
        SFP_WARN1_RXPWR_LOW             = BIT(6),

        SFP_EXT_STATUS                  = 118,
        SFP_EXT_STATUS_RS1_SELECT       = BIT(3),
        SFP_EXT_STATUS_PWRLVL_SELECT    = BIT(0),

        SFP_VSL                         = 120,
        SFP_PAGE                        = 127,
};

struct fwnode_handle;
struct ethtool_eeprom;
struct ethtool_modinfo;
struct sfp_bus;

/**
 * struct sfp_module_caps - sfp module capabilities
 * @interfaces: bitmap of interfaces that the module may support
 * @link_modes: bitmap of ethtool link modes that the module may support
 */
struct sfp_module_caps {
        DECLARE_PHY_INTERFACE_MASK(interfaces);
        __ETHTOOL_DECLARE_LINK_MODE_MASK(link_modes);
        /**
         * @may_have_phy: indicate whether the module may have an ethernet PHY
         * There is no way to be sure that a module has a PHY as the EEPROM
         * doesn't contain this information. When set, this does not mean that
         * the module definitely has a PHY.
         */
        bool may_have_phy;
        /**
         * @port: one of ethtool %PORT_* definitions, parsed from the module
         * EEPROM, or %PORT_OTHER if the port type is not known.
         */
        u8 port;
};

/**
 * struct sfp_upstream_ops - upstream operations structure
 * @attach: called when the sfp socket driver is bound to the upstream
 *   (mandatory).
 * @detach: called when the sfp socket driver is unbound from the upstream
 *   (mandatory).
 * @module_insert: called after a module has been detected to determine
 *   whether the module is supported for the upstream device.
 * @module_remove: called after the module has been removed.
 * @module_start: called after the PHY probe step
 * @module_stop: called before the PHY is removed
 * @link_down: called when the link is non-operational for whatever
 *   reason.
 * @link_up: called when the link is operational.
 * @connect_phy: called when an I2C accessible PHY has been detected
 *   on the module.
 * @disconnect_phy: called when a module with an I2C accessible PHY has
 *   been removed.
 */
struct sfp_upstream_ops {
        void (*attach)(void *priv, struct sfp_bus *bus);
        void (*detach)(void *priv, struct sfp_bus *bus);
        int (*module_insert)(void *priv, const struct sfp_eeprom_id *id);
        void (*module_remove)(void *priv);
        int (*module_start)(void *priv);
        void (*module_stop)(void *priv);
        void (*link_down)(void *priv);
        void (*link_up)(void *priv);
        int (*connect_phy)(void *priv, struct phy_device *);
        void (*disconnect_phy)(void *priv, struct phy_device *);
};

#if IS_ENABLED(CONFIG_SFP)
const struct sfp_module_caps *sfp_get_module_caps(struct sfp_bus *bus);
phy_interface_t sfp_select_interface(struct sfp_bus *bus,
                                     const unsigned long *link_modes);

int sfp_get_module_info(struct sfp_bus *bus, struct ethtool_modinfo *modinfo);
int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee,
                          u8 *data);
int sfp_get_module_eeprom_by_page(struct sfp_bus *bus,
                                  const struct ethtool_module_eeprom *page,
                                  struct netlink_ext_ack *extack);
void sfp_upstream_start(struct sfp_bus *bus);
void sfp_upstream_stop(struct sfp_bus *bus);
void sfp_upstream_set_signal_rate(struct sfp_bus *bus, unsigned int rate_kbd);
void sfp_bus_put(struct sfp_bus *bus);
struct sfp_bus *sfp_bus_find_fwnode(const struct fwnode_handle *fwnode);
int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
                         const struct sfp_upstream_ops *ops);
void sfp_bus_del_upstream(struct sfp_bus *bus);
const char *sfp_get_name(struct sfp_bus *bus);
#else
static inline const struct sfp_module_caps *
sfp_get_module_caps(struct sfp_bus *bus)
{
        return NULL;
}

static inline phy_interface_t sfp_select_interface(struct sfp_bus *bus,
                                                const unsigned long *link_modes)
{
        return PHY_INTERFACE_MODE_NA;
}

static inline int sfp_get_module_info(struct sfp_bus *bus,
                                      struct ethtool_modinfo *modinfo)
{
        return -EOPNOTSUPP;
}

static inline int sfp_get_module_eeprom(struct sfp_bus *bus,
                                        struct ethtool_eeprom *ee, u8 *data)
{
        return -EOPNOTSUPP;
}

static inline int sfp_get_module_eeprom_by_page(struct sfp_bus *bus,
                                                const struct ethtool_module_eeprom *page,
                                                struct netlink_ext_ack *extack)
{
        return -EOPNOTSUPP;
}

static inline void sfp_upstream_start(struct sfp_bus *bus)
{
}

static inline void sfp_upstream_stop(struct sfp_bus *bus)
{
}

static inline void sfp_upstream_set_signal_rate(struct sfp_bus *bus,
                                                unsigned int rate_kbd)
{
}

static inline void sfp_bus_put(struct sfp_bus *bus)
{
}

static inline struct sfp_bus *
sfp_bus_find_fwnode(const struct fwnode_handle *fwnode)
{
        return NULL;
}

static inline int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
                                       const struct sfp_upstream_ops *ops)
{
        return 0;
}

static inline void sfp_bus_del_upstream(struct sfp_bus *bus)
{
}

static inline const char *sfp_get_name(struct sfp_bus *bus)
{
        return NULL;
}
#endif

#endif