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  * ftp://ftp.seagate.com/sff
 228  */
 229 struct sfp_eeprom_id {
 230         struct sfp_eeprom_base base;
 231         struct sfp_eeprom_ext ext;
 232 } __packed;
 233
 234 /* SFP EEPROM registers */
 235 enum {
 236         SFP_PHYS_ID                     = 0x00,
 237         SFP_PHYS_EXT_ID                 = 0x01,
 238         SFP_CONNECTOR                   = 0x02,
 239         SFP_COMPLIANCE                  = 0x03,
 240         SFP_ENCODING                    = 0x0b,
 241         SFP_BR_NOMINAL                  = 0x0c,
 242         SFP_RATE_ID                     = 0x0d,
 243         SFP_LINK_LEN_SM_KM              = 0x0e,
 244         SFP_LINK_LEN_SM_100M            = 0x0f,
 245         SFP_LINK_LEN_50UM_OM2_10M       = 0x10,
 246         SFP_LINK_LEN_62_5UM_OM1_10M     = 0x11,
 247         SFP_LINK_LEN_COPPER_1M          = 0x12,
 248         SFP_LINK_LEN_50UM_OM4_10M       = 0x12,
 249         SFP_LINK_LEN_50UM_OM3_10M       = 0x13,
 250         SFP_VENDOR_NAME                 = 0x14,
 251         SFP_VENDOR_OUI                  = 0x25,
 252         SFP_VENDOR_PN                   = 0x28,
 253         SFP_VENDOR_REV                  = 0x38,
 254         SFP_OPTICAL_WAVELENGTH_MSB      = 0x3c,
 255         SFP_OPTICAL_WAVELENGTH_LSB      = 0x3d,
 256         SFP_CABLE_SPEC                  = 0x3c,
 257         SFP_CC_BASE                     = 0x3f,
 258         SFP_OPTIONS                     = 0x40, /* 2 bytes, MSB, LSB */
 259         SFP_BR_MAX                      = 0x42,
 260         SFP_BR_MIN                      = 0x43,
 261         SFP_VENDOR_SN                   = 0x44,
 262         SFP_DATECODE                    = 0x54,
 263         SFP_DIAGMON                     = 0x5c,
 264         SFP_ENHOPTS                     = 0x5d,
 265         SFP_SFF8472_COMPLIANCE          = 0x5e,
 266         SFP_CC_EXT                      = 0x5f,
 267
 268         SFP_PHYS_ID_SFF                 = 0x02,
 269         SFP_PHYS_ID_SFP                 = 0x03,
 270         SFP_PHYS_EXT_ID_SFP             = 0x04,
 271         SFP_CONNECTOR_UNSPEC            = 0x00,
 272         /* codes 01-05 not supportable on SFP, but some modules have single SC */
 273         SFP_CONNECTOR_SC                = 0x01,
 274         SFP_CONNECTOR_FIBERJACK         = 0x06,
 275         SFP_CONNECTOR_LC                = 0x07,
 276         SFP_CONNECTOR_MT_RJ             = 0x08,
 277         SFP_CONNECTOR_MU                = 0x09,
 278         SFP_CONNECTOR_SG                = 0x0a,
 279         SFP_CONNECTOR_OPTICAL_PIGTAIL   = 0x0b,
 280         SFP_CONNECTOR_MPO_1X12          = 0x0c,
 281         SFP_CONNECTOR_MPO_2X16          = 0x0d,
 282         SFP_CONNECTOR_HSSDC_II          = 0x20,
 283         SFP_CONNECTOR_COPPER_PIGTAIL    = 0x21,
 284         SFP_CONNECTOR_RJ45              = 0x22,
 285         SFP_CONNECTOR_NOSEPARATE        = 0x23,
 286         SFP_CONNECTOR_MXC_2X16          = 0x24,
 287         SFP_ENCODING_UNSPEC             = 0x00,
 288         SFP_ENCODING_8B10B              = 0x01,
 289         SFP_ENCODING_4B5B               = 0x02,
 290         SFP_ENCODING_NRZ                = 0x03,
 291         SFP_ENCODING_8472_MANCHESTER    = 0x04,
 292         SFP_ENCODING_8472_SONET         = 0x05,
 293         SFP_ENCODING_8472_64B66B        = 0x06,
 294         SFP_ENCODING_256B257B           = 0x07,
 295         SFP_ENCODING_PAM4               = 0x08,
 296         SFP_OPTIONS_HIGH_POWER_LEVEL    = BIT(13),
 297         SFP_OPTIONS_PAGING_A2           = BIT(12),
 298         SFP_OPTIONS_RETIMER             = BIT(11),
 299         SFP_OPTIONS_COOLED_XCVR         = BIT(10),
 300         SFP_OPTIONS_POWER_DECL          = BIT(9),
 301         SFP_OPTIONS_RX_LINEAR_OUT       = BIT(8),
 302         SFP_OPTIONS_RX_DECISION_THRESH  = BIT(7),
 303         SFP_OPTIONS_TUNABLE_TX          = BIT(6),
 304         SFP_OPTIONS_RATE_SELECT         = BIT(5),
 305         SFP_OPTIONS_TX_DISABLE          = BIT(4),
 306         SFP_OPTIONS_TX_FAULT            = BIT(3),
 307         SFP_OPTIONS_LOS_INVERTED        = BIT(2),
 308         SFP_OPTIONS_LOS_NORMAL          = BIT(1),
 309         SFP_DIAGMON_DDM                 = BIT(6),
 310         SFP_DIAGMON_INT_CAL             = BIT(5),
 311         SFP_DIAGMON_EXT_CAL             = BIT(4),
 312         SFP_DIAGMON_RXPWR_AVG           = BIT(3),
 313         SFP_DIAGMON_ADDRMODE            = BIT(2),
 314         SFP_ENHOPTS_ALARMWARN           = BIT(7),
 315         SFP_ENHOPTS_SOFT_TX_DISABLE     = BIT(6),
 316         SFP_ENHOPTS_SOFT_TX_FAULT       = BIT(5),
 317         SFP_ENHOPTS_SOFT_RX_LOS         = BIT(4),
 318         SFP_ENHOPTS_SOFT_RATE_SELECT    = BIT(3),
 319         SFP_ENHOPTS_APP_SELECT_SFF8079  = BIT(2),
 320         SFP_ENHOPTS_SOFT_RATE_SFF8431   = BIT(1),
 321         SFP_SFF8472_COMPLIANCE_NONE     = 0x00,
 322         SFP_SFF8472_COMPLIANCE_REV9_3   = 0x01,
 323         SFP_SFF8472_COMPLIANCE_REV9_5   = 0x02,
 324         SFP_SFF8472_COMPLIANCE_REV10_2  = 0x03,
 325         SFP_SFF8472_COMPLIANCE_REV10_4  = 0x04,
 326         SFP_SFF8472_COMPLIANCE_REV11_0  = 0x05,
 327         SFP_SFF8472_COMPLIANCE_REV11_3  = 0x06,
 328         SFP_SFF8472_COMPLIANCE_REV11_4  = 0x07,
 329         SFP_SFF8472_COMPLIANCE_REV12_0  = 0x08,
 330 };
 331
 332 /* SFP Diagnostics */
 333 enum {
 334         /* Alarm and warnings stored MSB at lower address then LSB */
 335         SFP_TEMP_HIGH_ALARM             = 0x00,
 336         SFP_TEMP_LOW_ALARM              = 0x02,
 337         SFP_TEMP_HIGH_WARN              = 0x04,
 338         SFP_TEMP_LOW_WARN               = 0x06,
 339         SFP_VOLT_HIGH_ALARM             = 0x08,
 340         SFP_VOLT_LOW_ALARM              = 0x0a,
 341         SFP_VOLT_HIGH_WARN              = 0x0c,
 342         SFP_VOLT_LOW_WARN               = 0x0e,
 343         SFP_BIAS_HIGH_ALARM             = 0x10,
 344         SFP_BIAS_LOW_ALARM              = 0x12,
 345         SFP_BIAS_HIGH_WARN              = 0x14,
 346         SFP_BIAS_LOW_WARN               = 0x16,
 347         SFP_TXPWR_HIGH_ALARM            = 0x18,
 348         SFP_TXPWR_LOW_ALARM             = 0x1a,
 349         SFP_TXPWR_HIGH_WARN             = 0x1c,
 350         SFP_TXPWR_LOW_WARN              = 0x1e,
 351         SFP_RXPWR_HIGH_ALARM            = 0x20,
 352         SFP_RXPWR_LOW_ALARM             = 0x22,
 353         SFP_RXPWR_HIGH_WARN             = 0x24,
 354         SFP_RXPWR_LOW_WARN              = 0x26,
 355         SFP_LASER_TEMP_HIGH_ALARM       = 0x28,
 356         SFP_LASER_TEMP_LOW_ALARM        = 0x2a,
 357         SFP_LASER_TEMP_HIGH_WARN        = 0x2c,
 358         SFP_LASER_TEMP_LOW_WARN         = 0x2e,
 359         SFP_TEC_CUR_HIGH_ALARM          = 0x30,
 360         SFP_TEC_CUR_LOW_ALARM           = 0x32,
 361         SFP_TEC_CUR_HIGH_WARN           = 0x34,
 362         SFP_TEC_CUR_LOW_WARN            = 0x36,
 363         SFP_CAL_RXPWR4                  = 0x38,
 364         SFP_CAL_RXPWR3                  = 0x3c,
 365         SFP_CAL_RXPWR2                  = 0x40,
 366         SFP_CAL_RXPWR1                  = 0x44,
 367         SFP_CAL_RXPWR0                  = 0x48,
 368         SFP_CAL_TXI_SLOPE               = 0x4c,
 369         SFP_CAL_TXI_OFFSET              = 0x4e,
 370         SFP_CAL_TXPWR_SLOPE             = 0x50,
 371         SFP_CAL_TXPWR_OFFSET            = 0x52,
 372         SFP_CAL_T_SLOPE                 = 0x54,
 373         SFP_CAL_T_OFFSET                = 0x56,
 374         SFP_CAL_V_SLOPE                 = 0x58,
 375         SFP_CAL_V_OFFSET                = 0x5a,
 376         SFP_CHKSUM                      = 0x5f,
 377
 378         SFP_TEMP                        = 0x60,
 379         SFP_VCC                         = 0x62,
 380         SFP_TX_BIAS                     = 0x64,
 381         SFP_TX_POWER                    = 0x66,
 382         SFP_RX_POWER                    = 0x68,
 383         SFP_LASER_TEMP                  = 0x6a,
 384         SFP_TEC_CUR                     = 0x6c,
 385
 386         SFP_STATUS                      = 0x6e,
 387         SFP_ALARM                       = 0x70,
 388
 389         SFP_EXT_STATUS                  = 0x76,
 390         SFP_VSL                         = 0x78,
 391         SFP_PAGE                        = 0x7f,
 392 };
 393
 394 struct fwnode_handle;
 395 struct ethtool_eeprom;
 396 struct ethtool_modinfo;
 397 struct net_device;
 398 struct sfp_bus;
 399
 400 /**
 401  * struct sfp_upstream_ops - upstream operations structure
 402  * @module_insert: called after a module has been detected to determine
 403  *   whether the module is supported for the upstream device.
 404  * @module_remove: called after the module has been removed.
 405  * @link_down: called when the link is non-operational for whatever
 406  *   reason.
 407  * @link_up: called when the link is operational.
 408  * @connect_phy: called when an I2C accessible PHY has been detected
 409  *   on the module.
 410  * @disconnect_phy: called when a module with an I2C accessible PHY has
 411  *   been removed.
 412  */
 413 struct sfp_upstream_ops {
 414         int (*module_insert)(void *priv, const struct sfp_eeprom_id *id);
 415         void (*module_remove)(void *priv);
 416         void (*link_down)(void *priv);
 417         void (*link_up)(void *priv);
 418         int (*connect_phy)(void *priv, struct phy_device *);
 419         void (*disconnect_phy)(void *priv);
 420 };
 421
 422 #if IS_ENABLED(CONFIG_SFP)
 423 int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
 424                    unsigned long *support);
 425 phy_interface_t sfp_parse_interface(struct sfp_bus *bus,
 426                                     const struct sfp_eeprom_id *id);
 427 void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
 428                        unsigned long *support);
 429
 430 int sfp_get_module_info(struct sfp_bus *bus, struct ethtool_modinfo *modinfo);
 431 int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee,
 432                           u8 *data);
 433 void sfp_upstream_start(struct sfp_bus *bus);
 434 void sfp_upstream_stop(struct sfp_bus *bus);
 435 struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode,
 436                                       struct net_device *ndev, void *upstream,
 437                                       const struct sfp_upstream_ops *ops);
 438 void sfp_unregister_upstream(struct sfp_bus *bus);
 439 #else
 440 static inline int sfp_parse_port(struct sfp_bus *bus,
 441                                  const struct sfp_eeprom_id *id,
 442                                  unsigned long *support)
 443 {
 444         return PORT_OTHER;
 445 }
 446
 447 static inline phy_interface_t sfp_parse_interface(struct sfp_bus *bus,
 448                                                 const struct sfp_eeprom_id *id)
 449 {
 450         return PHY_INTERFACE_MODE_NA;
 451 }
 452
 453 static inline void sfp_parse_support(struct sfp_bus *bus,
 454                                      const struct sfp_eeprom_id *id,
 455                                      unsigned long *support)
 456 {
 457 }
 458
 459 static inline int sfp_get_module_info(struct sfp_bus *bus,
 460                                       struct ethtool_modinfo *modinfo)
 461 {
 462         return -EOPNOTSUPP;
 463 }
 464
 465 static inline int sfp_get_module_eeprom(struct sfp_bus *bus,
 466                                         struct ethtool_eeprom *ee, u8 *data)
 467 {
 468         return -EOPNOTSUPP;
 469 }
 470
 471 static inline void sfp_upstream_start(struct sfp_bus *bus)
 472 {
 473 }
 474
 475 static inline void sfp_upstream_stop(struct sfp_bus *bus)
 476 {
 477 }
 478
 479 static inline struct sfp_bus *sfp_register_upstream(
 480         struct fwnode_handle *fwnode,
 481         struct net_device *ndev, void *upstream,
 482         const struct sfp_upstream_ops *ops)
 483 {
 484         return (struct sfp_bus *)-1;
 485 }
 486
 487 static inline void sfp_unregister_upstream(struct sfp_bus *bus)
 488 {
 489 }
 490 #endif
 491
 492 #endif