xref: /openbmc/linux/include/linux/sfp.h (revision 6b342707)
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			= 0x00,
336 	SFP_PHYS_EXT_ID			= 0x01,
337 	SFP_CONNECTOR			= 0x02,
338 	SFP_COMPLIANCE			= 0x03,
339 	SFP_ENCODING			= 0x0b,
340 	SFP_BR_NOMINAL			= 0x0c,
341 	SFP_RATE_ID			= 0x0d,
342 	SFP_LINK_LEN_SM_KM		= 0x0e,
343 	SFP_LINK_LEN_SM_100M		= 0x0f,
344 	SFP_LINK_LEN_50UM_OM2_10M	= 0x10,
345 	SFP_LINK_LEN_62_5UM_OM1_10M	= 0x11,
346 	SFP_LINK_LEN_COPPER_1M		= 0x12,
347 	SFP_LINK_LEN_50UM_OM4_10M	= 0x12,
348 	SFP_LINK_LEN_50UM_OM3_10M	= 0x13,
349 	SFP_VENDOR_NAME			= 0x14,
350 	SFP_VENDOR_OUI			= 0x25,
351 	SFP_VENDOR_PN			= 0x28,
352 	SFP_VENDOR_REV			= 0x38,
353 	SFP_OPTICAL_WAVELENGTH_MSB	= 0x3c,
354 	SFP_OPTICAL_WAVELENGTH_LSB	= 0x3d,
355 	SFP_CABLE_SPEC			= 0x3c,
356 	SFP_CC_BASE			= 0x3f,
357 	SFP_OPTIONS			= 0x40,	/* 2 bytes, MSB, LSB */
358 	SFP_BR_MAX			= 0x42,
359 	SFP_BR_MIN			= 0x43,
360 	SFP_VENDOR_SN			= 0x44,
361 	SFP_DATECODE			= 0x54,
362 	SFP_DIAGMON			= 0x5c,
363 	SFP_ENHOPTS			= 0x5d,
364 	SFP_SFF8472_COMPLIANCE		= 0x5e,
365 	SFP_CC_EXT			= 0x5f,
366 
367 	SFP_PHYS_EXT_ID_SFP		= 0x04,
368 	SFP_OPTIONS_HIGH_POWER_LEVEL	= BIT(13),
369 	SFP_OPTIONS_PAGING_A2		= BIT(12),
370 	SFP_OPTIONS_RETIMER		= BIT(11),
371 	SFP_OPTIONS_COOLED_XCVR		= BIT(10),
372 	SFP_OPTIONS_POWER_DECL		= BIT(9),
373 	SFP_OPTIONS_RX_LINEAR_OUT	= BIT(8),
374 	SFP_OPTIONS_RX_DECISION_THRESH	= BIT(7),
375 	SFP_OPTIONS_TUNABLE_TX		= BIT(6),
376 	SFP_OPTIONS_RATE_SELECT		= BIT(5),
377 	SFP_OPTIONS_TX_DISABLE		= BIT(4),
378 	SFP_OPTIONS_TX_FAULT		= BIT(3),
379 	SFP_OPTIONS_LOS_INVERTED	= BIT(2),
380 	SFP_OPTIONS_LOS_NORMAL		= BIT(1),
381 	SFP_DIAGMON_DDM			= BIT(6),
382 	SFP_DIAGMON_INT_CAL		= BIT(5),
383 	SFP_DIAGMON_EXT_CAL		= BIT(4),
384 	SFP_DIAGMON_RXPWR_AVG		= BIT(3),
385 	SFP_DIAGMON_ADDRMODE		= BIT(2),
386 	SFP_ENHOPTS_ALARMWARN		= BIT(7),
387 	SFP_ENHOPTS_SOFT_TX_DISABLE	= BIT(6),
388 	SFP_ENHOPTS_SOFT_TX_FAULT	= BIT(5),
389 	SFP_ENHOPTS_SOFT_RX_LOS		= BIT(4),
390 	SFP_ENHOPTS_SOFT_RATE_SELECT	= BIT(3),
391 	SFP_ENHOPTS_APP_SELECT_SFF8079	= BIT(2),
392 	SFP_ENHOPTS_SOFT_RATE_SFF8431	= BIT(1),
393 	SFP_SFF8472_COMPLIANCE_NONE	= 0x00,
394 	SFP_SFF8472_COMPLIANCE_REV9_3	= 0x01,
395 	SFP_SFF8472_COMPLIANCE_REV9_5	= 0x02,
396 	SFP_SFF8472_COMPLIANCE_REV10_2	= 0x03,
397 	SFP_SFF8472_COMPLIANCE_REV10_4	= 0x04,
398 	SFP_SFF8472_COMPLIANCE_REV11_0	= 0x05,
399 	SFP_SFF8472_COMPLIANCE_REV11_3	= 0x06,
400 	SFP_SFF8472_COMPLIANCE_REV11_4	= 0x07,
401 	SFP_SFF8472_COMPLIANCE_REV12_0	= 0x08,
402 };
403 
404 /* SFP Diagnostics */
405 enum {
406 	/* Alarm and warnings stored MSB at lower address then LSB */
407 	SFP_TEMP_HIGH_ALARM		= 0x00,
408 	SFP_TEMP_LOW_ALARM		= 0x02,
409 	SFP_TEMP_HIGH_WARN		= 0x04,
410 	SFP_TEMP_LOW_WARN		= 0x06,
411 	SFP_VOLT_HIGH_ALARM		= 0x08,
412 	SFP_VOLT_LOW_ALARM		= 0x0a,
413 	SFP_VOLT_HIGH_WARN		= 0x0c,
414 	SFP_VOLT_LOW_WARN		= 0x0e,
415 	SFP_BIAS_HIGH_ALARM		= 0x10,
416 	SFP_BIAS_LOW_ALARM		= 0x12,
417 	SFP_BIAS_HIGH_WARN		= 0x14,
418 	SFP_BIAS_LOW_WARN		= 0x16,
419 	SFP_TXPWR_HIGH_ALARM		= 0x18,
420 	SFP_TXPWR_LOW_ALARM		= 0x1a,
421 	SFP_TXPWR_HIGH_WARN		= 0x1c,
422 	SFP_TXPWR_LOW_WARN		= 0x1e,
423 	SFP_RXPWR_HIGH_ALARM		= 0x20,
424 	SFP_RXPWR_LOW_ALARM		= 0x22,
425 	SFP_RXPWR_HIGH_WARN		= 0x24,
426 	SFP_RXPWR_LOW_WARN		= 0x26,
427 	SFP_LASER_TEMP_HIGH_ALARM	= 0x28,
428 	SFP_LASER_TEMP_LOW_ALARM	= 0x2a,
429 	SFP_LASER_TEMP_HIGH_WARN	= 0x2c,
430 	SFP_LASER_TEMP_LOW_WARN		= 0x2e,
431 	SFP_TEC_CUR_HIGH_ALARM		= 0x30,
432 	SFP_TEC_CUR_LOW_ALARM		= 0x32,
433 	SFP_TEC_CUR_HIGH_WARN		= 0x34,
434 	SFP_TEC_CUR_LOW_WARN		= 0x36,
435 	SFP_CAL_RXPWR4			= 0x38,
436 	SFP_CAL_RXPWR3			= 0x3c,
437 	SFP_CAL_RXPWR2			= 0x40,
438 	SFP_CAL_RXPWR1			= 0x44,
439 	SFP_CAL_RXPWR0			= 0x48,
440 	SFP_CAL_TXI_SLOPE		= 0x4c,
441 	SFP_CAL_TXI_OFFSET		= 0x4e,
442 	SFP_CAL_TXPWR_SLOPE		= 0x50,
443 	SFP_CAL_TXPWR_OFFSET		= 0x52,
444 	SFP_CAL_T_SLOPE			= 0x54,
445 	SFP_CAL_T_OFFSET		= 0x56,
446 	SFP_CAL_V_SLOPE			= 0x58,
447 	SFP_CAL_V_OFFSET		= 0x5a,
448 	SFP_CHKSUM			= 0x5f,
449 
450 	SFP_TEMP			= 0x60,
451 	SFP_VCC				= 0x62,
452 	SFP_TX_BIAS			= 0x64,
453 	SFP_TX_POWER			= 0x66,
454 	SFP_RX_POWER			= 0x68,
455 	SFP_LASER_TEMP			= 0x6a,
456 	SFP_TEC_CUR			= 0x6c,
457 
458 	SFP_STATUS			= 0x6e,
459 	SFP_STATUS_TX_DISABLE		= BIT(7),
460 	SFP_STATUS_TX_DISABLE_FORCE	= BIT(6),
461 	SFP_STATUS_TX_FAULT		= BIT(2),
462 	SFP_STATUS_RX_LOS		= BIT(1),
463 	SFP_ALARM0			= 0x70,
464 	SFP_ALARM0_TEMP_HIGH		= BIT(7),
465 	SFP_ALARM0_TEMP_LOW		= BIT(6),
466 	SFP_ALARM0_VCC_HIGH		= BIT(5),
467 	SFP_ALARM0_VCC_LOW		= BIT(4),
468 	SFP_ALARM0_TX_BIAS_HIGH		= BIT(3),
469 	SFP_ALARM0_TX_BIAS_LOW		= BIT(2),
470 	SFP_ALARM0_TXPWR_HIGH		= BIT(1),
471 	SFP_ALARM0_TXPWR_LOW		= BIT(0),
472 
473 	SFP_ALARM1			= 0x71,
474 	SFP_ALARM1_RXPWR_HIGH		= BIT(7),
475 	SFP_ALARM1_RXPWR_LOW		= BIT(6),
476 
477 	SFP_WARN0			= 0x74,
478 	SFP_WARN0_TEMP_HIGH		= BIT(7),
479 	SFP_WARN0_TEMP_LOW		= BIT(6),
480 	SFP_WARN0_VCC_HIGH		= BIT(5),
481 	SFP_WARN0_VCC_LOW		= BIT(4),
482 	SFP_WARN0_TX_BIAS_HIGH		= BIT(3),
483 	SFP_WARN0_TX_BIAS_LOW		= BIT(2),
484 	SFP_WARN0_TXPWR_HIGH		= BIT(1),
485 	SFP_WARN0_TXPWR_LOW		= BIT(0),
486 
487 	SFP_WARN1			= 0x75,
488 	SFP_WARN1_RXPWR_HIGH		= BIT(7),
489 	SFP_WARN1_RXPWR_LOW		= BIT(6),
490 
491 	SFP_EXT_STATUS			= 0x76,
492 	SFP_VSL				= 0x78,
493 	SFP_PAGE			= 0x7f,
494 };
495 
496 struct fwnode_handle;
497 struct ethtool_eeprom;
498 struct ethtool_modinfo;
499 struct sfp_bus;
500 
501 /**
502  * struct sfp_upstream_ops - upstream operations structure
503  * @attach: called when the sfp socket driver is bound to the upstream
504  *   (mandatory).
505  * @detach: called when the sfp socket driver is unbound from the upstream
506  *   (mandatory).
507  * @module_insert: called after a module has been detected to determine
508  *   whether the module is supported for the upstream device.
509  * @module_remove: called after the module has been removed.
510  * @module_start: called after the PHY probe step
511  * @module_stop: called before the PHY is removed
512  * @link_down: called when the link is non-operational for whatever
513  *   reason.
514  * @link_up: called when the link is operational.
515  * @connect_phy: called when an I2C accessible PHY has been detected
516  *   on the module.
517  * @disconnect_phy: called when a module with an I2C accessible PHY has
518  *   been removed.
519  */
520 struct sfp_upstream_ops {
521 	void (*attach)(void *priv, struct sfp_bus *bus);
522 	void (*detach)(void *priv, struct sfp_bus *bus);
523 	int (*module_insert)(void *priv, const struct sfp_eeprom_id *id);
524 	void (*module_remove)(void *priv);
525 	int (*module_start)(void *priv);
526 	void (*module_stop)(void *priv);
527 	void (*link_down)(void *priv);
528 	void (*link_up)(void *priv);
529 	int (*connect_phy)(void *priv, struct phy_device *);
530 	void (*disconnect_phy)(void *priv);
531 };
532 
533 #if IS_ENABLED(CONFIG_SFP)
534 int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
535 		   unsigned long *support);
536 bool sfp_may_have_phy(struct sfp_bus *bus, const struct sfp_eeprom_id *id);
537 void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
538 		       unsigned long *support);
539 phy_interface_t sfp_select_interface(struct sfp_bus *bus,
540 				     unsigned long *link_modes);
541 
542 int sfp_get_module_info(struct sfp_bus *bus, struct ethtool_modinfo *modinfo);
543 int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee,
544 			  u8 *data);
545 int sfp_get_module_eeprom_by_page(struct sfp_bus *bus,
546 				  const struct ethtool_module_eeprom *page,
547 				  struct netlink_ext_ack *extack);
548 void sfp_upstream_start(struct sfp_bus *bus);
549 void sfp_upstream_stop(struct sfp_bus *bus);
550 void sfp_bus_put(struct sfp_bus *bus);
551 struct sfp_bus *sfp_bus_find_fwnode(struct fwnode_handle *fwnode);
552 int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
553 			 const struct sfp_upstream_ops *ops);
554 void sfp_bus_del_upstream(struct sfp_bus *bus);
555 #else
556 static inline int sfp_parse_port(struct sfp_bus *bus,
557 				 const struct sfp_eeprom_id *id,
558 				 unsigned long *support)
559 {
560 	return PORT_OTHER;
561 }
562 
563 static inline bool sfp_may_have_phy(struct sfp_bus *bus,
564 				    const struct sfp_eeprom_id *id)
565 {
566 	return false;
567 }
568 
569 static inline void sfp_parse_support(struct sfp_bus *bus,
570 				     const struct sfp_eeprom_id *id,
571 				     unsigned long *support)
572 {
573 }
574 
575 static inline phy_interface_t sfp_select_interface(struct sfp_bus *bus,
576 						   unsigned long *link_modes)
577 {
578 	return PHY_INTERFACE_MODE_NA;
579 }
580 
581 static inline int sfp_get_module_info(struct sfp_bus *bus,
582 				      struct ethtool_modinfo *modinfo)
583 {
584 	return -EOPNOTSUPP;
585 }
586 
587 static inline int sfp_get_module_eeprom(struct sfp_bus *bus,
588 					struct ethtool_eeprom *ee, u8 *data)
589 {
590 	return -EOPNOTSUPP;
591 }
592 
593 static inline int sfp_get_module_eeprom_by_page(struct sfp_bus *bus,
594 						const struct ethtool_module_eeprom *page,
595 						struct netlink_ext_ack *extack)
596 {
597 	return -EOPNOTSUPP;
598 }
599 
600 static inline void sfp_upstream_start(struct sfp_bus *bus)
601 {
602 }
603 
604 static inline void sfp_upstream_stop(struct sfp_bus *bus)
605 {
606 }
607 
608 static inline void sfp_bus_put(struct sfp_bus *bus)
609 {
610 }
611 
612 static inline struct sfp_bus *sfp_bus_find_fwnode(struct fwnode_handle *fwnode)
613 {
614 	return NULL;
615 }
616 
617 static inline int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
618 				       const struct sfp_upstream_ops *ops)
619 {
620 	return 0;
621 }
622 
623 static inline void sfp_bus_del_upstream(struct sfp_bus *bus)
624 {
625 }
626 #endif
627 
628 #endif
629