include/linux/sfp.h

   1 #ifndef LINUX_SFP_H
   2 #define LINUX_SFP_H
   3
   4 #include <linux/phy.h>
   5
   6 struct sfp_eeprom_base {
   7         u8 phys_id;
   8         u8 phys_ext_id;
   9         u8 connector;
  10 #if defined __BIG_ENDIAN_BITFIELD
  11         u8 e10g_base_er:1;
  12         u8 e10g_base_lrm:1;
  13         u8 e10g_base_lr:1;
  14         u8 e10g_base_sr:1;
  15         u8 if_1x_sx:1;
  16         u8 if_1x_lx:1;
  17         u8 if_1x_copper_active:1;
  18         u8 if_1x_copper_passive:1;
  19
  20         u8 escon_mmf_1310_led:1;
  21         u8 escon_smf_1310_laser:1;
  22         u8 sonet_oc192_short_reach:1;
  23         u8 sonet_reach_bit1:1;
  24         u8 sonet_reach_bit2:1;
  25         u8 sonet_oc48_long_reach:1;
  26         u8 sonet_oc48_intermediate_reach:1;
  27         u8 sonet_oc48_short_reach:1;
  28
  29         u8 unallocated_5_7:1;
  30         u8 sonet_oc12_smf_long_reach:1;
  31         u8 sonet_oc12_smf_intermediate_reach:1;
  32         u8 sonet_oc12_short_reach:1;
  33         u8 unallocated_5_3:1;
  34         u8 sonet_oc3_smf_long_reach:1;
  35         u8 sonet_oc3_smf_intermediate_reach:1;
  36         u8 sonet_oc3_short_reach:1;
  37
  38         u8 e_base_px:1;
  39         u8 e_base_bx10:1;
  40         u8 e100_base_fx:1;
  41         u8 e100_base_lx:1;
  42         u8 e1000_base_t:1;
  43         u8 e1000_base_cx:1;
  44         u8 e1000_base_lx:1;
  45         u8 e1000_base_sx:1;
  46
  47         u8 fc_ll_v:1;
  48         u8 fc_ll_s:1;
  49         u8 fc_ll_i:1;
  50         u8 fc_ll_l:1;
  51         u8 fc_ll_m:1;
  52         u8 fc_tech_sa:1;
  53         u8 fc_tech_lc:1;
  54         u8 fc_tech_electrical_inter_enclosure:1;
  55
  56         u8 fc_tech_electrical_intra_enclosure:1;
  57         u8 fc_tech_sn:1;
  58         u8 fc_tech_sl:1;
  59         u8 fc_tech_ll:1;
  60         u8 sfp_ct_active:1;
  61         u8 sfp_ct_passive:1;
  62         u8 unallocated_8_1:1;
  63         u8 unallocated_8_0:1;
  64
  65         u8 fc_media_tw:1;
  66         u8 fc_media_tp:1;
  67         u8 fc_media_mi:1;
  68         u8 fc_media_tv:1;
  69         u8 fc_media_m6:1;
  70         u8 fc_media_m5:1;
  71         u8 unallocated_9_1:1;
  72         u8 fc_media_sm:1;
  73
  74         u8 fc_speed_1200:1;
  75         u8 fc_speed_800:1;
  76         u8 fc_speed_1600:1;
  77         u8 fc_speed_400:1;
  78         u8 fc_speed_3200:1;
  79         u8 fc_speed_200:1;
  80         u8 unallocated_10_1:1;
  81         u8 fc_speed_100:1;
  82 #elif defined __LITTLE_ENDIAN_BITFIELD
  83         u8 if_1x_copper_passive:1;
  84         u8 if_1x_copper_active:1;
  85         u8 if_1x_lx:1;
  86         u8 if_1x_sx:1;
  87         u8 e10g_base_sr:1;
  88         u8 e10g_base_lr:1;
  89         u8 e10g_base_lrm:1;
  90         u8 e10g_base_er:1;
  91
  92         u8 sonet_oc3_short_reach:1;
  93         u8 sonet_oc3_smf_intermediate_reach:1;
  94         u8 sonet_oc3_smf_long_reach:1;
  95         u8 unallocated_5_3:1;
  96         u8 sonet_oc12_short_reach:1;
  97         u8 sonet_oc12_smf_intermediate_reach:1;
  98         u8 sonet_oc12_smf_long_reach:1;
  99         u8 unallocated_5_7:1;
 100
 101         u8 sonet_oc48_short_reach:1;
 102         u8 sonet_oc48_intermediate_reach:1;
 103         u8 sonet_oc48_long_reach:1;
 104         u8 sonet_reach_bit2:1;
 105         u8 sonet_reach_bit1:1;
 106         u8 sonet_oc192_short_reach:1;
 107         u8 escon_smf_1310_laser:1;
 108         u8 escon_mmf_1310_led:1;
 109
 110         u8 e1000_base_sx:1;
 111         u8 e1000_base_lx:1;
 112         u8 e1000_base_cx:1;
 113         u8 e1000_base_t:1;
 114         u8 e100_base_lx:1;
 115         u8 e100_base_fx:1;
 116         u8 e_base_bx10:1;
 117         u8 e_base_px:1;
 118
 119         u8 fc_tech_electrical_inter_enclosure:1;
 120         u8 fc_tech_lc:1;
 121         u8 fc_tech_sa:1;
 122         u8 fc_ll_m:1;
 123         u8 fc_ll_l:1;
 124         u8 fc_ll_i:1;
 125         u8 fc_ll_s:1;
 126         u8 fc_ll_v:1;
 127
 128         u8 unallocated_8_0:1;
 129         u8 unallocated_8_1:1;
 130         u8 sfp_ct_passive:1;
 131         u8 sfp_ct_active:1;
 132         u8 fc_tech_ll:1;
 133         u8 fc_tech_sl:1;
 134         u8 fc_tech_sn:1;
 135         u8 fc_tech_electrical_intra_enclosure:1;
 136
 137         u8 fc_media_sm:1;
 138         u8 unallocated_9_1:1;
 139         u8 fc_media_m5:1;
 140         u8 fc_media_m6:1;
 141         u8 fc_media_tv:1;
 142         u8 fc_media_mi:1;
 143         u8 fc_media_tp:1;
 144         u8 fc_media_tw:1;
 145
 146         u8 fc_speed_100:1;
 147         u8 unallocated_10_1:1;
 148         u8 fc_speed_200:1;
 149         u8 fc_speed_3200:1;
 150         u8 fc_speed_400:1;
 151         u8 fc_speed_1600:1;
 152         u8 fc_speed_800:1;
 153         u8 fc_speed_1200:1;
 154 #else
 155 #error Unknown Endian
 156 #endif
 157         u8 encoding;
 158         u8 br_nominal;
 159         u8 rate_id;
 160         u8 link_len[6];
 161         char vendor_name[16];
 162         u8 extended_cc;
 163         char vendor_oui[3];
 164         char vendor_pn[16];
 165         char vendor_rev[4];
 166         union {
 167                 __be16 optical_wavelength;
 168                 __be16 cable_compliance;
 169                 struct {
 170 #if defined __BIG_ENDIAN_BITFIELD
 171                         u8 reserved60_2:6;
 172                         u8 fc_pi_4_app_h:1;
 173                         u8 sff8431_app_e:1;
 174                         u8 reserved61:8;
 175 #elif defined __LITTLE_ENDIAN_BITFIELD
 176                         u8 sff8431_app_e:1;
 177                         u8 fc_pi_4_app_h:1;
 178                         u8 reserved60_2:6;
 179                         u8 reserved61:8;
 180 #else
 181 #error Unknown Endian
 182 #endif
 183                 } __packed passive;
 184                 struct {
 185 #if defined __BIG_ENDIAN_BITFIELD
 186                         u8 reserved60_4:4;
 187                         u8 fc_pi_4_lim:1;
 188                         u8 sff8431_lim:1;
 189                         u8 fc_pi_4_app_h:1;
 190                         u8 sff8431_app_e:1;
 191                         u8 reserved61:8;
 192 #elif defined __LITTLE_ENDIAN_BITFIELD
 193                         u8 sff8431_app_e:1;
 194                         u8 fc_pi_4_app_h:1;
 195                         u8 sff8431_lim:1;
 196                         u8 fc_pi_4_lim:1;
 197                         u8 reserved60_4:4;
 198                         u8 reserved61:8;
 199 #else
 200 #error Unknown Endian
 201 #endif
 202                 } __packed active;
 203         } __packed;
 204         u8 reserved62;
 205         u8 cc_base;
 206 } __packed;
 207
 208 struct sfp_eeprom_ext {
 209         __be16 options;
 210         u8 br_max;
 211         u8 br_min;
 212         char vendor_sn[16];
 213         char datecode[8];
 214         u8 diagmon;
 215         u8 enhopts;
 216         u8 sff8472_compliance;
 217         u8 cc_ext;
 218 } __packed;
 219
 220 /**
 221  * struct sfp_eeprom_id - raw SFP module identification information
 222  * @base: base SFP module identification structure
 223  * @ext: extended SFP module identification structure
 224  *
 225  * See the SFF-8472 specification and related documents for the definition
 226  * of these structure members. This can be obtained from
 227  * https://www.snia.org/technology-communities/sff/specifications
 228  */
 229 struct sfp_eeprom_id {
 230         struct sfp_eeprom_base base;
 231         struct sfp_eeprom_ext ext;
 232 } __packed;
 233
 234 struct sfp_diag {
 235         __be16 temp_high_alarm;
 236         __be16 temp_low_alarm;
 237         __be16 temp_high_warn;
 238         __be16 temp_low_warn;
 239         __be16 volt_high_alarm;
 240         __be16 volt_low_alarm;
 241         __be16 volt_high_warn;
 242         __be16 volt_low_warn;
 243         __be16 bias_high_alarm;
 244         __be16 bias_low_alarm;
 245         __be16 bias_high_warn;
 246         __be16 bias_low_warn;
 247         __be16 txpwr_high_alarm;
 248         __be16 txpwr_low_alarm;
 249         __be16 txpwr_high_warn;
 250         __be16 txpwr_low_warn;
 251         __be16 rxpwr_high_alarm;
 252         __be16 rxpwr_low_alarm;
 253         __be16 rxpwr_high_warn;
 254         __be16 rxpwr_low_warn;
 255         __be16 laser_temp_high_alarm;
 256         __be16 laser_temp_low_alarm;
 257         __be16 laser_temp_high_warn;
 258         __be16 laser_temp_low_warn;
 259         __be16 tec_cur_high_alarm;
 260         __be16 tec_cur_low_alarm;
 261         __be16 tec_cur_high_warn;
 262         __be16 tec_cur_low_warn;
 263         __be32 cal_rxpwr4;
 264         __be32 cal_rxpwr3;
 265         __be32 cal_rxpwr2;
 266         __be32 cal_rxpwr1;
 267         __be32 cal_rxpwr0;
 268         __be16 cal_txi_slope;
 269         __be16 cal_txi_offset;
 270         __be16 cal_txpwr_slope;
 271         __be16 cal_txpwr_offset;
 272         __be16 cal_t_slope;
 273         __be16 cal_t_offset;
 274         __be16 cal_v_slope;
 275         __be16 cal_v_offset;
 276 } __packed;
 277
 278 /* SFF8024 defined constants */
 279 enum {
 280         SFF8024_ID_UNK                  = 0x00,
 281         SFF8024_ID_SFF_8472             = 0x02,
 282         SFF8024_ID_SFP                  = 0x03,
 283         SFF8024_ID_DWDM_SFP             = 0x0b,
 284         SFF8024_ID_QSFP_8438            = 0x0c,
 285         SFF8024_ID_QSFP_8436_8636       = 0x0d,
 286         SFF8024_ID_QSFP28_8636          = 0x11,
 287
 288         SFF8024_ENCODING_UNSPEC         = 0x00,
 289         SFF8024_ENCODING_8B10B          = 0x01,
 290         SFF8024_ENCODING_4B5B           = 0x02,
 291         SFF8024_ENCODING_NRZ            = 0x03,
 292         SFF8024_ENCODING_8472_MANCHESTER= 0x04,
 293         SFF8024_ENCODING_8472_SONET     = 0x05,
 294         SFF8024_ENCODING_8472_64B66B    = 0x06,
 295         SFF8024_ENCODING_8436_MANCHESTER= 0x06,
 296         SFF8024_ENCODING_8436_SONET     = 0x04,
 297         SFF8024_ENCODING_8436_64B66B    = 0x05,
 298         SFF8024_ENCODING_256B257B       = 0x07,
 299         SFF8024_ENCODING_PAM4           = 0x08,
 300
 301         SFF8024_CONNECTOR_UNSPEC        = 0x00,
 302         /* codes 01-05 not supportable on SFP, but some modules have single SC */
 303         SFF8024_CONNECTOR_SC            = 0x01,
 304         SFF8024_CONNECTOR_FIBERJACK     = 0x06,
 305         SFF8024_CONNECTOR_LC            = 0x07,
 306         SFF8024_CONNECTOR_MT_RJ         = 0x08,
 307         SFF8024_CONNECTOR_MU            = 0x09,
 308         SFF8024_CONNECTOR_SG            = 0x0a,
 309         SFF8024_CONNECTOR_OPTICAL_PIGTAIL= 0x0b,
 310         SFF8024_CONNECTOR_MPO_1X12      = 0x0c,
 311         SFF8024_CONNECTOR_MPO_2X16      = 0x0d,
 312         SFF8024_CONNECTOR_HSSDC_II      = 0x20,
 313         SFF8024_CONNECTOR_COPPER_PIGTAIL= 0x21,
 314         SFF8024_CONNECTOR_RJ45          = 0x22,
 315         SFF8024_CONNECTOR_NOSEPARATE    = 0x23,
 316         SFF8024_CONNECTOR_MXC_2X16      = 0x24,
 317
 318         SFF8024_ECC_UNSPEC              = 0x00,
 319         SFF8024_ECC_100G_25GAUI_C2M_AOC = 0x01,
 320         SFF8024_ECC_100GBASE_SR4_25GBASE_SR = 0x02,
 321         SFF8024_ECC_100GBASE_LR4_25GBASE_LR = 0x03,
 322         SFF8024_ECC_100GBASE_ER4_25GBASE_ER = 0x04,
 323         SFF8024_ECC_100GBASE_SR10       = 0x05,
 324         SFF8024_ECC_100GBASE_CR4        = 0x0b,
 325         SFF8024_ECC_25GBASE_CR_S        = 0x0c,
 326         SFF8024_ECC_25GBASE_CR_N        = 0x0d,
 327         SFF8024_ECC_10GBASE_T_SFI       = 0x16,
 328         SFF8024_ECC_10GBASE_T_SR        = 0x1c,
 329         SFF8024_ECC_5GBASE_T            = 0x1d,
 330         SFF8024_ECC_2_5GBASE_T          = 0x1e,
 331 };
 332
 333 /* SFP EEPROM registers */
 334 enum {
 335         SFP_PHYS_ID                     = 0,
 336
 337         SFP_PHYS_EXT_ID                 = 1,
 338         SFP_PHYS_EXT_ID_SFP             = 0x04,
 339
 340         SFP_CONNECTOR                   = 2,
 341         SFP_COMPLIANCE                  = 3,
 342         SFP_ENCODING                    = 11,
 343         SFP_BR_NOMINAL                  = 12,
 344         SFP_RATE_ID                     = 13,
 345         SFP_LINK_LEN_SM_KM              = 14,
 346         SFP_LINK_LEN_SM_100M            = 15,
 347         SFP_LINK_LEN_50UM_OM2_10M       = 16,
 348         SFP_LINK_LEN_62_5UM_OM1_10M     = 17,
 349         SFP_LINK_LEN_COPPER_1M          = 18,
 350         SFP_LINK_LEN_50UM_OM4_10M       = 18,
 351         SFP_LINK_LEN_50UM_OM3_10M       = 19,
 352         SFP_VENDOR_NAME                 = 20,
 353         SFP_VENDOR_OUI                  = 37,
 354         SFP_VENDOR_PN                   = 40,
 355         SFP_VENDOR_REV                  = 56,
 356         SFP_OPTICAL_WAVELENGTH_MSB      = 60,
 357         SFP_OPTICAL_WAVELENGTH_LSB      = 61,
 358         SFP_CABLE_SPEC                  = 60,
 359         SFP_CC_BASE                     = 63,
 360
 361         SFP_OPTIONS                     = 64,   /* 2 bytes, MSB, LSB */
 362         SFP_OPTIONS_HIGH_POWER_LEVEL    = BIT(13),
 363         SFP_OPTIONS_PAGING_A2           = BIT(12),
 364         SFP_OPTIONS_RETIMER             = BIT(11),
 365         SFP_OPTIONS_COOLED_XCVR         = BIT(10),
 366         SFP_OPTIONS_POWER_DECL          = BIT(9),
 367         SFP_OPTIONS_RX_LINEAR_OUT       = BIT(8),
 368         SFP_OPTIONS_RX_DECISION_THRESH  = BIT(7),
 369         SFP_OPTIONS_TUNABLE_TX          = BIT(6),
 370         SFP_OPTIONS_RATE_SELECT         = BIT(5),
 371         SFP_OPTIONS_TX_DISABLE          = BIT(4),
 372         SFP_OPTIONS_TX_FAULT            = BIT(3),
 373         SFP_OPTIONS_LOS_INVERTED        = BIT(2),
 374         SFP_OPTIONS_LOS_NORMAL          = BIT(1),
 375
 376         SFP_BR_MAX                      = 66,
 377         SFP_BR_MIN                      = 67,
 378         SFP_VENDOR_SN                   = 68,
 379         SFP_DATECODE                    = 84,
 380
 381         SFP_DIAGMON                     = 92,
 382         SFP_DIAGMON_DDM                 = BIT(6),
 383         SFP_DIAGMON_INT_CAL             = BIT(5),
 384         SFP_DIAGMON_EXT_CAL             = BIT(4),
 385         SFP_DIAGMON_RXPWR_AVG           = BIT(3),
 386         SFP_DIAGMON_ADDRMODE            = BIT(2),
 387
 388         SFP_ENHOPTS                     = 93,
 389         SFP_ENHOPTS_ALARMWARN           = BIT(7),
 390         SFP_ENHOPTS_SOFT_TX_DISABLE     = BIT(6),
 391         SFP_ENHOPTS_SOFT_TX_FAULT       = BIT(5),
 392         SFP_ENHOPTS_SOFT_RX_LOS         = BIT(4),
 393         SFP_ENHOPTS_SOFT_RATE_SELECT    = BIT(3),
 394         SFP_ENHOPTS_APP_SELECT_SFF8079  = BIT(2),
 395         SFP_ENHOPTS_SOFT_RATE_SFF8431   = BIT(1),
 396
 397         SFP_SFF8472_COMPLIANCE          = 94,
 398         SFP_SFF8472_COMPLIANCE_NONE     = 0x00,
 399         SFP_SFF8472_COMPLIANCE_REV9_3   = 0x01,
 400         SFP_SFF8472_COMPLIANCE_REV9_5   = 0x02,
 401         SFP_SFF8472_COMPLIANCE_REV10_2  = 0x03,
 402         SFP_SFF8472_COMPLIANCE_REV10_4  = 0x04,
 403         SFP_SFF8472_COMPLIANCE_REV11_0  = 0x05,
 404         SFP_SFF8472_COMPLIANCE_REV11_3  = 0x06,
 405         SFP_SFF8472_COMPLIANCE_REV11_4  = 0x07,
 406         SFP_SFF8472_COMPLIANCE_REV12_0  = 0x08,
 407
 408         SFP_CC_EXT                      = 95,
 409 };
 410
 411 /* SFP Diagnostics */
 412 enum {
 413         /* Alarm and warnings stored MSB at lower address then LSB */
 414         SFP_TEMP_HIGH_ALARM             = 0,
 415         SFP_TEMP_LOW_ALARM              = 2,
 416         SFP_TEMP_HIGH_WARN              = 4,
 417         SFP_TEMP_LOW_WARN               = 6,
 418         SFP_VOLT_HIGH_ALARM             = 8,
 419         SFP_VOLT_LOW_ALARM              = 10,
 420         SFP_VOLT_HIGH_WARN              = 12,
 421         SFP_VOLT_LOW_WARN               = 14,
 422         SFP_BIAS_HIGH_ALARM             = 16,
 423         SFP_BIAS_LOW_ALARM              = 18,
 424         SFP_BIAS_HIGH_WARN              = 20,
 425         SFP_BIAS_LOW_WARN               = 22,
 426         SFP_TXPWR_HIGH_ALARM            = 24,
 427         SFP_TXPWR_LOW_ALARM             = 26,
 428         SFP_TXPWR_HIGH_WARN             = 28,
 429         SFP_TXPWR_LOW_WARN              = 30,
 430         SFP_RXPWR_HIGH_ALARM            = 32,
 431         SFP_RXPWR_LOW_ALARM             = 34,
 432         SFP_RXPWR_HIGH_WARN             = 36,
 433         SFP_RXPWR_LOW_WARN              = 38,
 434         SFP_LASER_TEMP_HIGH_ALARM       = 40,
 435         SFP_LASER_TEMP_LOW_ALARM        = 42,
 436         SFP_LASER_TEMP_HIGH_WARN        = 44,
 437         SFP_LASER_TEMP_LOW_WARN         = 46,
 438         SFP_TEC_CUR_HIGH_ALARM          = 48,
 439         SFP_TEC_CUR_LOW_ALARM           = 50,
 440         SFP_TEC_CUR_HIGH_WARN           = 52,
 441         SFP_TEC_CUR_LOW_WARN            = 54,
 442         SFP_CAL_RXPWR4                  = 56,
 443         SFP_CAL_RXPWR3                  = 60,
 444         SFP_CAL_RXPWR2                  = 64,
 445         SFP_CAL_RXPWR1                  = 68,
 446         SFP_CAL_RXPWR0                  = 72,
 447         SFP_CAL_TXI_SLOPE               = 76,
 448         SFP_CAL_TXI_OFFSET              = 78,
 449         SFP_CAL_TXPWR_SLOPE             = 80,
 450         SFP_CAL_TXPWR_OFFSET            = 82,
 451         SFP_CAL_T_SLOPE                 = 84,
 452         SFP_CAL_T_OFFSET                = 86,
 453         SFP_CAL_V_SLOPE                 = 88,
 454         SFP_CAL_V_OFFSET                = 90,
 455         SFP_CHKSUM                      = 95,
 456
 457         SFP_TEMP                        = 96,
 458         SFP_VCC                         = 98,
 459         SFP_TX_BIAS                     = 100,
 460         SFP_TX_POWER                    = 102,
 461         SFP_RX_POWER                    = 104,
 462         SFP_LASER_TEMP                  = 106,
 463         SFP_TEC_CUR                     = 108,
 464
 465         SFP_STATUS                      = 110,
 466         SFP_STATUS_TX_DISABLE           = BIT(7),
 467         SFP_STATUS_TX_DISABLE_FORCE     = BIT(6),
 468         SFP_STATUS_TX_FAULT             = BIT(2),
 469         SFP_STATUS_RX_LOS               = BIT(1),
 470         SFP_ALARM0                      = 112,
 471         SFP_ALARM0_TEMP_HIGH            = BIT(7),
 472         SFP_ALARM0_TEMP_LOW             = BIT(6),
 473         SFP_ALARM0_VCC_HIGH             = BIT(5),
 474         SFP_ALARM0_VCC_LOW              = BIT(4),
 475         SFP_ALARM0_TX_BIAS_HIGH         = BIT(3),
 476         SFP_ALARM0_TX_BIAS_LOW          = BIT(2),
 477         SFP_ALARM0_TXPWR_HIGH           = BIT(1),
 478         SFP_ALARM0_TXPWR_LOW            = BIT(0),
 479
 480         SFP_ALARM1                      = 113,
 481         SFP_ALARM1_RXPWR_HIGH           = BIT(7),
 482         SFP_ALARM1_RXPWR_LOW            = BIT(6),
 483
 484         SFP_WARN0                       = 116,
 485         SFP_WARN0_TEMP_HIGH             = BIT(7),
 486         SFP_WARN0_TEMP_LOW              = BIT(6),
 487         SFP_WARN0_VCC_HIGH              = BIT(5),
 488         SFP_WARN0_VCC_LOW               = BIT(4),
 489         SFP_WARN0_TX_BIAS_HIGH          = BIT(3),
 490         SFP_WARN0_TX_BIAS_LOW           = BIT(2),
 491         SFP_WARN0_TXPWR_HIGH            = BIT(1),
 492         SFP_WARN0_TXPWR_LOW             = BIT(0),
 493
 494         SFP_WARN1                       = 117,
 495         SFP_WARN1_RXPWR_HIGH            = BIT(7),
 496         SFP_WARN1_RXPWR_LOW             = BIT(6),
 497
 498         SFP_EXT_STATUS                  = 118,
 499         SFP_EXT_STATUS_PWRLVL_SELECT    = BIT(0),
 500
 501         SFP_VSL                         = 120,
 502         SFP_PAGE                        = 127,
 503 };
 504
 505 struct fwnode_handle;
 506 struct ethtool_eeprom;
 507 struct ethtool_modinfo;
 508 struct sfp_bus;
 509
 510 /**
 511  * struct sfp_upstream_ops - upstream operations structure
 512  * @attach: called when the sfp socket driver is bound to the upstream
 513  *   (mandatory).
 514  * @detach: called when the sfp socket driver is unbound from the upstream
 515  *   (mandatory).
 516  * @module_insert: called after a module has been detected to determine
 517  *   whether the module is supported for the upstream device.
 518  * @module_remove: called after the module has been removed.
 519  * @module_start: called after the PHY probe step
 520  * @module_stop: called before the PHY is removed
 521  * @link_down: called when the link is non-operational for whatever
 522  *   reason.
 523  * @link_up: called when the link is operational.
 524  * @connect_phy: called when an I2C accessible PHY has been detected
 525  *   on the module.
 526  * @disconnect_phy: called when a module with an I2C accessible PHY has
 527  *   been removed.
 528  */
 529 struct sfp_upstream_ops {
 530         void (*attach)(void *priv, struct sfp_bus *bus);
 531         void (*detach)(void *priv, struct sfp_bus *bus);
 532         int (*module_insert)(void *priv, const struct sfp_eeprom_id *id);
 533         void (*module_remove)(void *priv);
 534         int (*module_start)(void *priv);
 535         void (*module_stop)(void *priv);
 536         void (*link_down)(void *priv);
 537         void (*link_up)(void *priv);
 538         int (*connect_phy)(void *priv, struct phy_device *);
 539         void (*disconnect_phy)(void *priv);
 540 };
 541
 542 #if IS_ENABLED(CONFIG_SFP)
 543 int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
 544                    unsigned long *support);
 545 bool sfp_may_have_phy(struct sfp_bus *bus, const struct sfp_eeprom_id *id);
 546 void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
 547                        unsigned long *support, unsigned long *interfaces);
 548 phy_interface_t sfp_select_interface(struct sfp_bus *bus,
 549                                      unsigned long *link_modes);
 550
 551 int sfp_get_module_info(struct sfp_bus *bus, struct ethtool_modinfo *modinfo);
 552 int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee,
 553                           u8 *data);
 554 int sfp_get_module_eeprom_by_page(struct sfp_bus *bus,
 555                                   const struct ethtool_module_eeprom *page,
 556                                   struct netlink_ext_ack *extack);
 557 void sfp_upstream_start(struct sfp_bus *bus);
 558 void sfp_upstream_stop(struct sfp_bus *bus);
 559 void sfp_bus_put(struct sfp_bus *bus);
 560 struct sfp_bus *sfp_bus_find_fwnode(struct fwnode_handle *fwnode);
 561 int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
 562                          const struct sfp_upstream_ops *ops);
 563 void sfp_bus_del_upstream(struct sfp_bus *bus);
 564 #else
 565 static inline int sfp_parse_port(struct sfp_bus *bus,
 566                                  const struct sfp_eeprom_id *id,
 567                                  unsigned long *support)
 568 {
 569         return PORT_OTHER;
 570 }
 571
 572 static inline bool sfp_may_have_phy(struct sfp_bus *bus,
 573                                     const struct sfp_eeprom_id *id)
 574 {
 575         return false;
 576 }
 577
 578 static inline void sfp_parse_support(struct sfp_bus *bus,
 579                                      const struct sfp_eeprom_id *id,
 580                                      unsigned long *support,
 581                                      unsigned long *interfaces)
 582 {
 583 }
 584
 585 static inline phy_interface_t sfp_select_interface(struct sfp_bus *bus,
 586                                                    unsigned long *link_modes)
 587 {
 588         return PHY_INTERFACE_MODE_NA;
 589 }
 590
 591 static inline int sfp_get_module_info(struct sfp_bus *bus,
 592                                       struct ethtool_modinfo *modinfo)
 593 {
 594         return -EOPNOTSUPP;
 595 }
 596
 597 static inline int sfp_get_module_eeprom(struct sfp_bus *bus,
 598                                         struct ethtool_eeprom *ee, u8 *data)
 599 {
 600         return -EOPNOTSUPP;
 601 }
 602
 603 static inline int sfp_get_module_eeprom_by_page(struct sfp_bus *bus,
 604                                                 const struct ethtool_module_eeprom *page,
 605                                                 struct netlink_ext_ack *extack)
 606 {
 607         return -EOPNOTSUPP;
 608 }
 609
 610 static inline void sfp_upstream_start(struct sfp_bus *bus)
 611 {
 612 }
 613
 614 static inline void sfp_upstream_stop(struct sfp_bus *bus)
 615 {
 616 }
 617
 618 static inline void sfp_bus_put(struct sfp_bus *bus)
 619 {
 620 }
 621
 622 static inline struct sfp_bus *sfp_bus_find_fwnode(struct fwnode_handle *fwnode)
 623 {
 624         return NULL;
 625 }
 626
 627 static inline int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
 628                                        const struct sfp_upstream_ops *ops)
 629 {
 630         return 0;
 631 }
 632
 633 static inline void sfp_bus_del_upstream(struct sfp_bus *bus)
 634 {
 635 }
 636 #endif
 637
 638 #endif