1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3 * linux/mdio.h: definitions for MDIO (clause 45) transceivers
4 * Copyright 2006-2009 Solarflare Communications Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation, incorporated herein by reference.
9 */
10
11 #ifndef __LINUX_MDIO_H__
12 #define __LINUX_MDIO_H__
13
14 #include <linux/mii.h>
15
16 /* MDIO Manageable Devices (MMDs). */
17 #define MDIO_MMD_PMAPMD 1 /* Physical Medium Attachment/
18 * Physical Medium Dependent */
19 #define MDIO_MMD_WIS 2 /* WAN Interface Sublayer */
20 #define MDIO_MMD_PCS 3 /* Physical Coding Sublayer */
21 #define MDIO_MMD_PHYXS 4 /* PHY Extender Sublayer */
22 #define MDIO_MMD_DTEXS 5 /* DTE Extender Sublayer */
23 #define MDIO_MMD_TC 6 /* Transmission Convergence */
24 #define MDIO_MMD_AN 7 /* Auto-Negotiation */
25 #define MDIO_MMD_C22EXT 29 /* Clause 22 extension */
26 #define MDIO_MMD_VEND1 30 /* Vendor specific 1 */
27 #define MDIO_MMD_VEND2 31 /* Vendor specific 2 */
28
29 /* Generic MDIO registers. */
30 #define MDIO_CTRL1 MII_BMCR
31 #define MDIO_STAT1 MII_BMSR
32 #define MDIO_DEVID1 MII_PHYSID1
33 #define MDIO_DEVID2 MII_PHYSID2
34 #define MDIO_SPEED 4 /* Speed ability */
35 #define MDIO_DEVS1 5 /* Devices in package */
36 #define MDIO_DEVS2 6
37 #define MDIO_CTRL2 7 /* 10G control 2 */
38 #define MDIO_STAT2 8 /* 10G status 2 */
39 #define MDIO_PMA_TXDIS 9 /* 10G PMA/PMD transmit disable */
40 #define MDIO_PMA_RXDET 10 /* 10G PMA/PMD receive signal detect */
41 #define MDIO_PMA_EXTABLE 11 /* 10G PMA/PMD extended ability */
42 #define MDIO_PKGID1 14 /* Package identifier */
43 #define MDIO_PKGID2 15
44 #define MDIO_AN_ADVERTISE 16 /* AN advertising (base page) */
45 #define MDIO_AN_LPA 19 /* AN LP abilities (base page) */
46 #define MDIO_PCS_EEE_ABLE 20 /* EEE Capability register */
47 #define MDIO_PCS_EEE_WK_ERR 22 /* EEE wake error counter */
48 #define MDIO_PHYXS_LNSTAT 24 /* PHY XGXS lane state */
49 #define MDIO_AN_EEE_ADV 60 /* EEE advertisement */
50 #define MDIO_AN_EEE_LPABLE 61 /* EEE link partner ability */
51
52 /* Media-dependent registers. */
53 #define MDIO_PMA_10GBT_SWAPPOL 130 /* 10GBASE-T pair swap & polarity */
54 #define MDIO_PMA_10GBT_TXPWR 131 /* 10GBASE-T TX power control */
55 #define MDIO_PMA_10GBT_SNR 133 /* 10GBASE-T SNR margin, lane A.
56 * Lanes B-D are numbered 134-136. */
57 #define MDIO_PMA_10GBR_FECABLE 170 /* 10GBASE-R FEC ability */
58 #define MDIO_PCS_10GBX_STAT1 24 /* 10GBASE-X PCS status 1 */
59 #define MDIO_PCS_10GBRT_STAT1 32 /* 10GBASE-R/-T PCS status 1 */
60 #define MDIO_PCS_10GBRT_STAT2 33 /* 10GBASE-R/-T PCS status 2 */
61 #define MDIO_AN_10GBT_CTRL 32 /* 10GBASE-T auto-negotiation control */
62 #define MDIO_AN_10GBT_STAT 33 /* 10GBASE-T auto-negotiation status */
63
64 /* LASI (Link Alarm Status Interrupt) registers, defined by XENPAK MSA. */
65 #define MDIO_PMA_LASI_RXCTRL 0x9000 /* RX_ALARM control */
66 #define MDIO_PMA_LASI_TXCTRL 0x9001 /* TX_ALARM control */
67 #define MDIO_PMA_LASI_CTRL 0x9002 /* LASI control */
68 #define MDIO_PMA_LASI_RXSTAT 0x9003 /* RX_ALARM status */
69 #define MDIO_PMA_LASI_TXSTAT 0x9004 /* TX_ALARM status */
70 #define MDIO_PMA_LASI_STAT 0x9005 /* LASI status */
71
72 /* Control register 1. */
73 /* Enable extended speed selection */
74 #define MDIO_CTRL1_SPEEDSELEXT (BMCR_SPEED1000 | BMCR_SPEED100)
75 /* All speed selection bits */
76 #define MDIO_CTRL1_SPEEDSEL (MDIO_CTRL1_SPEEDSELEXT | 0x003c)
77 #define MDIO_CTRL1_FULLDPLX BMCR_FULLDPLX
78 #define MDIO_CTRL1_LPOWER BMCR_PDOWN
79 #define MDIO_CTRL1_RESET BMCR_RESET
80 #define MDIO_PMA_CTRL1_LOOPBACK 0x0001
81 #define MDIO_PMA_CTRL1_SPEED1000 BMCR_SPEED1000
82 #define MDIO_PMA_CTRL1_SPEED100 BMCR_SPEED100
83 #define MDIO_PCS_CTRL1_LOOPBACK BMCR_LOOPBACK
84 #define MDIO_PHYXS_CTRL1_LOOPBACK BMCR_LOOPBACK
85 #define MDIO_AN_CTRL1_RESTART BMCR_ANRESTART
86 #define MDIO_AN_CTRL1_ENABLE BMCR_ANENABLE
87 #define MDIO_AN_CTRL1_XNP 0x2000 /* Enable extended next page */
88 #define MDIO_PCS_CTRL1_CLKSTOP_EN 0x400 /* Stop the clock during LPI */
89
90 /* 10 Gb/s */
91 #define MDIO_CTRL1_SPEED10G (MDIO_CTRL1_SPEEDSELEXT | 0x00)
92 /* 10PASS-TS/2BASE-TL */
93 #define MDIO_CTRL1_SPEED10P2B (MDIO_CTRL1_SPEEDSELEXT | 0x04)
94
95 /* Status register 1. */
96 #define MDIO_STAT1_LPOWERABLE 0x0002 /* Low-power ability */
97 #define MDIO_STAT1_LSTATUS BMSR_LSTATUS
98 #define MDIO_STAT1_FAULT 0x0080 /* Fault */
99 #define MDIO_AN_STAT1_LPABLE 0x0001 /* Link partner AN ability */
100 #define MDIO_AN_STAT1_ABLE BMSR_ANEGCAPABLE
101 #define MDIO_AN_STAT1_RFAULT BMSR_RFAULT
102 #define MDIO_AN_STAT1_COMPLETE BMSR_ANEGCOMPLETE
103 #define MDIO_AN_STAT1_PAGE 0x0040 /* Page received */
104 #define MDIO_AN_STAT1_XNP 0x0080 /* Extended next page status */
105
106 /* Speed register. */
107 #define MDIO_SPEED_10G 0x0001 /* 10G capable */
108 #define MDIO_PMA_SPEED_2B 0x0002 /* 2BASE-TL capable */
109 #define MDIO_PMA_SPEED_10P 0x0004 /* 10PASS-TS capable */
110 #define MDIO_PMA_SPEED_1000 0x0010 /* 1000M capable */
111 #define MDIO_PMA_SPEED_100 0x0020 /* 100M capable */
112 #define MDIO_PMA_SPEED_10 0x0040 /* 10M capable */
113 #define MDIO_PCS_SPEED_10P2B 0x0002 /* 10PASS-TS/2BASE-TL capable */
114
115 /* Device present registers. */
116 #define MDIO_DEVS_PRESENT(devad) (1 << (devad))
117 #define MDIO_DEVS_PMAPMD MDIO_DEVS_PRESENT(MDIO_MMD_PMAPMD)
118 #define MDIO_DEVS_WIS MDIO_DEVS_PRESENT(MDIO_MMD_WIS)
119 #define MDIO_DEVS_PCS MDIO_DEVS_PRESENT(MDIO_MMD_PCS)
120 #define MDIO_DEVS_PHYXS MDIO_DEVS_PRESENT(MDIO_MMD_PHYXS)
121 #define MDIO_DEVS_DTEXS MDIO_DEVS_PRESENT(MDIO_MMD_DTEXS)
122 #define MDIO_DEVS_TC MDIO_DEVS_PRESENT(MDIO_MMD_TC)
123 #define MDIO_DEVS_AN MDIO_DEVS_PRESENT(MDIO_MMD_AN)
124 #define MDIO_DEVS_C22EXT MDIO_DEVS_PRESENT(MDIO_MMD_C22EXT)
125 #define MDIO_DEVS_VEND1 MDIO_DEVS_PRESENT(MDIO_MMD_VEND1)
126 #define MDIO_DEVS_VEND2 MDIO_DEVS_PRESENT(MDIO_MMD_VEND2)
127
128 #define MDIO_DEVS_LINK (MDIO_DEVS_PMAPMD | \
129 MDIO_DEVS_WIS | \
130 MDIO_DEVS_PCS | \
131 MDIO_DEVS_PHYXS | \
132 MDIO_DEVS_DTEXS | \
133 MDIO_DEVS_AN)
134
135 /* Control register 2. */
136 #define MDIO_PMA_CTRL2_TYPE 0x000f /* PMA/PMD type selection */
137 #define MDIO_PMA_CTRL2_10GBCX4 0x0000 /* 10GBASE-CX4 type */
138 #define MDIO_PMA_CTRL2_10GBEW 0x0001 /* 10GBASE-EW type */
139 #define MDIO_PMA_CTRL2_10GBLW 0x0002 /* 10GBASE-LW type */
140 #define MDIO_PMA_CTRL2_10GBSW 0x0003 /* 10GBASE-SW type */
141 #define MDIO_PMA_CTRL2_10GBLX4 0x0004 /* 10GBASE-LX4 type */
142 #define MDIO_PMA_CTRL2_10GBER 0x0005 /* 10GBASE-ER type */
143 #define MDIO_PMA_CTRL2_10GBLR 0x0006 /* 10GBASE-LR type */
144 #define MDIO_PMA_CTRL2_10GBSR 0x0007 /* 10GBASE-SR type */
145 #define MDIO_PMA_CTRL2_10GBLRM 0x0008 /* 10GBASE-LRM type */
146 #define MDIO_PMA_CTRL2_10GBT 0x0009 /* 10GBASE-T type */
147 #define MDIO_PMA_CTRL2_10GBKX4 0x000a /* 10GBASE-KX4 type */
148 #define MDIO_PMA_CTRL2_10GBKR 0x000b /* 10GBASE-KR type */
149 #define MDIO_PMA_CTRL2_1000BT 0x000c /* 1000BASE-T type */
150 #define MDIO_PMA_CTRL2_1000BKX 0x000d /* 1000BASE-KX type */
151 #define MDIO_PMA_CTRL2_100BTX 0x000e /* 100BASE-TX type */
152 #define MDIO_PMA_CTRL2_10BT 0x000f /* 10BASE-T type */
153 #define MDIO_PCS_CTRL2_TYPE 0x0003 /* PCS type selection */
154 #define MDIO_PCS_CTRL2_10GBR 0x0000 /* 10GBASE-R type */
155 #define MDIO_PCS_CTRL2_10GBX 0x0001 /* 10GBASE-X type */
156 #define MDIO_PCS_CTRL2_10GBW 0x0002 /* 10GBASE-W type */
157 #define MDIO_PCS_CTRL2_10GBT 0x0003 /* 10GBASE-T type */
158
159 /* Status register 2. */
160 #define MDIO_STAT2_RXFAULT 0x0400 /* Receive fault */
161 #define MDIO_STAT2_TXFAULT 0x0800 /* Transmit fault */
162 #define MDIO_STAT2_DEVPRST 0xc000 /* Device present */
163 #define MDIO_STAT2_DEVPRST_VAL 0x8000 /* Device present value */
164 #define MDIO_PMA_STAT2_LBABLE 0x0001 /* PMA loopback ability */
165 #define MDIO_PMA_STAT2_10GBEW 0x0002 /* 10GBASE-EW ability */
166 #define MDIO_PMA_STAT2_10GBLW 0x0004 /* 10GBASE-LW ability */
167 #define MDIO_PMA_STAT2_10GBSW 0x0008 /* 10GBASE-SW ability */
168 #define MDIO_PMA_STAT2_10GBLX4 0x0010 /* 10GBASE-LX4 ability */
169 #define MDIO_PMA_STAT2_10GBER 0x0020 /* 10GBASE-ER ability */
170 #define MDIO_PMA_STAT2_10GBLR 0x0040 /* 10GBASE-LR ability */
171 #define MDIO_PMA_STAT2_10GBSR 0x0080 /* 10GBASE-SR ability */
172 #define MDIO_PMD_STAT2_TXDISAB 0x0100 /* PMD TX disable ability */
173 #define MDIO_PMA_STAT2_EXTABLE 0x0200 /* Extended abilities */
174 #define MDIO_PMA_STAT2_RXFLTABLE 0x1000 /* Receive fault ability */
175 #define MDIO_PMA_STAT2_TXFLTABLE 0x2000 /* Transmit fault ability */
176 #define MDIO_PCS_STAT2_10GBR 0x0001 /* 10GBASE-R capable */
177 #define MDIO_PCS_STAT2_10GBX 0x0002 /* 10GBASE-X capable */
178 #define MDIO_PCS_STAT2_10GBW 0x0004 /* 10GBASE-W capable */
179 #define MDIO_PCS_STAT2_RXFLTABLE 0x1000 /* Receive fault ability */
180 #define MDIO_PCS_STAT2_TXFLTABLE 0x2000 /* Transmit fault ability */
181
182 /* Transmit disable register. */
183 #define MDIO_PMD_TXDIS_GLOBAL 0x0001 /* Global PMD TX disable */
184 #define MDIO_PMD_TXDIS_0 0x0002 /* PMD TX disable 0 */
185 #define MDIO_PMD_TXDIS_1 0x0004 /* PMD TX disable 1 */
186 #define MDIO_PMD_TXDIS_2 0x0008 /* PMD TX disable 2 */
187 #define MDIO_PMD_TXDIS_3 0x0010 /* PMD TX disable 3 */
188
189 /* Receive signal detect register. */
190 #define MDIO_PMD_RXDET_GLOBAL 0x0001 /* Global PMD RX signal detect */
191 #define MDIO_PMD_RXDET_0 0x0002 /* PMD RX signal detect 0 */
192 #define MDIO_PMD_RXDET_1 0x0004 /* PMD RX signal detect 1 */
193 #define MDIO_PMD_RXDET_2 0x0008 /* PMD RX signal detect 2 */
194 #define MDIO_PMD_RXDET_3 0x0010 /* PMD RX signal detect 3 */
195
196 /* Extended abilities register. */
197 #define MDIO_PMA_EXTABLE_10GCX4 0x0001 /* 10GBASE-CX4 ability */
198 #define MDIO_PMA_EXTABLE_10GBLRM 0x0002 /* 10GBASE-LRM ability */
199 #define MDIO_PMA_EXTABLE_10GBT 0x0004 /* 10GBASE-T ability */
200 #define MDIO_PMA_EXTABLE_10GBKX4 0x0008 /* 10GBASE-KX4 ability */
201 #define MDIO_PMA_EXTABLE_10GBKR 0x0010 /* 10GBASE-KR ability */
202 #define MDIO_PMA_EXTABLE_1000BT 0x0020 /* 1000BASE-T ability */
203 #define MDIO_PMA_EXTABLE_1000BKX 0x0040 /* 1000BASE-KX ability */
204 #define MDIO_PMA_EXTABLE_100BTX 0x0080 /* 100BASE-TX ability */
205 #define MDIO_PMA_EXTABLE_10BT 0x0100 /* 10BASE-T ability */
206
207 /* PHY XGXS lane state register. */
208 #define MDIO_PHYXS_LNSTAT_SYNC0 0x0001
209 #define MDIO_PHYXS_LNSTAT_SYNC1 0x0002
210 #define MDIO_PHYXS_LNSTAT_SYNC2 0x0004
211 #define MDIO_PHYXS_LNSTAT_SYNC3 0x0008
212 #define MDIO_PHYXS_LNSTAT_ALIGN 0x1000
213
214 /* PMA 10GBASE-T pair swap & polarity */
215 #define MDIO_PMA_10GBT_SWAPPOL_ABNX 0x0001 /* Pair A/B uncrossed */
216 #define MDIO_PMA_10GBT_SWAPPOL_CDNX 0x0002 /* Pair C/D uncrossed */
217 #define MDIO_PMA_10GBT_SWAPPOL_AREV 0x0100 /* Pair A polarity reversed */
218 #define MDIO_PMA_10GBT_SWAPPOL_BREV 0x0200 /* Pair B polarity reversed */
219 #define MDIO_PMA_10GBT_SWAPPOL_CREV 0x0400 /* Pair C polarity reversed */
220 #define MDIO_PMA_10GBT_SWAPPOL_DREV 0x0800 /* Pair D polarity reversed */
221
222 /* PMA 10GBASE-T TX power register. */
223 #define MDIO_PMA_10GBT_TXPWR_SHORT 0x0001 /* Short-reach mode */
224
225 /* PMA 10GBASE-T SNR registers. */
226 /* Value is SNR margin in dB, clamped to range [-127, 127], plus 0x8000. */
227 #define MDIO_PMA_10GBT_SNR_BIAS 0x8000
228 #define MDIO_PMA_10GBT_SNR_MAX 127
229
230 /* PMA 10GBASE-R FEC ability register. */
231 #define MDIO_PMA_10GBR_FECABLE_ABLE 0x0001 /* FEC ability */
232 #define MDIO_PMA_10GBR_FECABLE_ERRABLE 0x0002 /* FEC error indic. ability */
233
234 /* PCS 10GBASE-R/-T status register 1. */
235 #define MDIO_PCS_10GBRT_STAT1_BLKLK 0x0001 /* Block lock attained */
236
237 /* PCS 10GBASE-R/-T status register 2. */
238 #define MDIO_PCS_10GBRT_STAT2_ERR 0x00ff
239 #define MDIO_PCS_10GBRT_STAT2_BER 0x3f00
240
241 /* AN 10GBASE-T control register. */
242 #define MDIO_AN_10GBT_CTRL_ADV10G 0x1000 /* Advertise 10GBASE-T */
243
244 /* AN 10GBASE-T status register. */
245 #define MDIO_AN_10GBT_STAT_LPTRR 0x0200 /* LP training reset req. */
246 #define MDIO_AN_10GBT_STAT_LPLTABLE 0x0400 /* LP loop timing ability */
247 #define MDIO_AN_10GBT_STAT_LP10G 0x0800 /* LP is 10GBT capable */
248 #define MDIO_AN_10GBT_STAT_REMOK 0x1000 /* Remote OK */
249 #define MDIO_AN_10GBT_STAT_LOCOK 0x2000 /* Local OK */
250 #define MDIO_AN_10GBT_STAT_MS 0x4000 /* Master/slave config */
251 #define MDIO_AN_10GBT_STAT_MSFLT 0x8000 /* Master/slave config fault */
252
253 /* EEE Supported/Advertisement/LP Advertisement registers.
254 *
255 * EEE capability Register (3.20), Advertisement (7.60) and
256 * Link partner ability (7.61) registers have and can use the same identical
257 * bit masks.
258 */
259 #define MDIO_AN_EEE_ADV_100TX 0x0002 /* Advertise 100TX EEE cap */
260 #define MDIO_AN_EEE_ADV_1000T 0x0004 /* Advertise 1000T EEE cap */
261 /* Note: the two defines above can be potentially used by the user-land
262 * and cannot remove them now.
263 * So, we define the new generic MDIO_EEE_100TX and MDIO_EEE_1000T macros
264 * using the previous ones (that can be considered obsolete).
265 */
266 #define MDIO_EEE_100TX MDIO_AN_EEE_ADV_100TX /* 100TX EEE cap */
267 #define MDIO_EEE_1000T MDIO_AN_EEE_ADV_1000T /* 1000T EEE cap */
268 #define MDIO_EEE_10GT 0x0008 /* 10GT EEE cap */
269 #define MDIO_EEE_1000KX 0x0010 /* 1000KX EEE cap */
270 #define MDIO_EEE_10GKX4 0x0020 /* 10G KX4 EEE cap */
271 #define MDIO_EEE_10GKR 0x0040 /* 10G KR EEE cap */
272
273 /* LASI RX_ALARM control/status registers. */
274 #define MDIO_PMA_LASI_RX_PHYXSLFLT 0x0001 /* PHY XS RX local fault */
275 #define MDIO_PMA_LASI_RX_PCSLFLT 0x0008 /* PCS RX local fault */
276 #define MDIO_PMA_LASI_RX_PMALFLT 0x0010 /* PMA/PMD RX local fault */
277 #define MDIO_PMA_LASI_RX_OPTICPOWERFLT 0x0020 /* RX optical power fault */
278 #define MDIO_PMA_LASI_RX_WISLFLT 0x0200 /* WIS local fault */
279
280 /* LASI TX_ALARM control/status registers. */
281 #define MDIO_PMA_LASI_TX_PHYXSLFLT 0x0001 /* PHY XS TX local fault */
282 #define MDIO_PMA_LASI_TX_PCSLFLT 0x0008 /* PCS TX local fault */
283 #define MDIO_PMA_LASI_TX_PMALFLT 0x0010 /* PMA/PMD TX local fault */
284 #define MDIO_PMA_LASI_TX_LASERPOWERFLT 0x0080 /* Laser output power fault */
285 #define MDIO_PMA_LASI_TX_LASERTEMPFLT 0x0100 /* Laser temperature fault */
286 #define MDIO_PMA_LASI_TX_LASERBICURRFLT 0x0200 /* Laser bias current fault */
287
288 /* LASI control/status registers. */
289 #define MDIO_PMA_LASI_LSALARM 0x0001 /* LS_ALARM enable/status */
290 #define MDIO_PMA_LASI_TXALARM 0x0002 /* TX_ALARM enable/status */
291 #define MDIO_PMA_LASI_RXALARM 0x0004 /* RX_ALARM enable/status */
292
293 /* Mapping between MDIO PRTAD/DEVAD and mii_ioctl_data::phy_id */
294
295 #define MDIO_PHY_ID_C45 0x8000
296 #define MDIO_PHY_ID_PRTAD 0x03e0
297 #define MDIO_PHY_ID_DEVAD 0x001f
298 #define MDIO_PHY_ID_C45_MASK \
299 (MDIO_PHY_ID_C45 | MDIO_PHY_ID_PRTAD | MDIO_PHY_ID_DEVAD)
300
301 #define MDIO_PRTAD_NONE (-1)
302 #define MDIO_DEVAD_NONE (-1)
303 #define MDIO_EMULATE_C22 4
304
mdio_phy_id_c45(int prtad,int devad)305 static inline __u16 mdio_phy_id_c45(int prtad, int devad)
306 {
307 return MDIO_PHY_ID_C45 | (prtad << 5) | devad;
308 }
309
310 #endif /* __LINUX_MDIO_H__ */
311