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1 /* Copyright (c) 2002 Intel Corporation */
2 #include <stdio.h>
3 #include "internal.h"
4 
5 /* Register Bit Masks */
6 /* Device Control */
7 #define E1000_CTRL_FD       0x00000001  /* Full duplex.0=half; 1=full */
8 #define E1000_CTRL_BEM      0x00000002  /* Endian Mode.0=little,1=big */
9 #define E1000_CTRL_PRIOR    0x00000004  /* Priority on PCI. 0=rx,1=fair */
10 #define E1000_CTRL_LRST     0x00000008  /* Link reset. 0=normal,1=reset */
11 #define E1000_CTRL_TME      0x00000010  /* Test mode. 0=normal,1=test */
12 #define E1000_CTRL_SLE      0x00000020  /* Serial Link on 0=dis,1=en */
13 #define E1000_CTRL_ASDE     0x00000020  /* Auto-speed detect enable */
14 #define E1000_CTRL_SLU      0x00000040  /* Set link up (Force Link) */
15 #define E1000_CTRL_ILOS     0x00000080  /* Invert Loss-Of Signal */
16 #define E1000_CTRL_SPD_SEL  0x00000300  /* Speed Select Mask */
17 #define E1000_CTRL_SPD_10   0x00000000  /* Force 10Mb */
18 #define E1000_CTRL_SPD_100  0x00000100  /* Force 100Mb */
19 #define E1000_CTRL_SPD_1000 0x00000200  /* Force 1Gb */
20 #define E1000_CTRL_BEM32    0x00000400  /* Big Endian 32 mode */
21 #define E1000_CTRL_FRCSPD   0x00000800  /* Force Speed */
22 #define E1000_CTRL_FRCDPX   0x00001000  /* Force Duplex */
23 #define E1000_CTRL_SWDPIN0  0x00040000  /* SWDPIN 0 value */
24 #define E1000_CTRL_SWDPIN1  0x00080000  /* SWDPIN 1 value */
25 #define E1000_CTRL_SWDPIN2  0x00100000  /* SWDPIN 2 value */
26 #define E1000_CTRL_SWDPIN3  0x00200000  /* SWDPIN 3 value */
27 #define E1000_CTRL_SWDPIO0  0x00400000  /* SWDPIN 0 Input or output */
28 #define E1000_CTRL_SWDPIO1  0x00800000  /* SWDPIN 1 input or output */
29 #define E1000_CTRL_SWDPIO2  0x01000000  /* SWDPIN 2 input or output */
30 #define E1000_CTRL_SWDPIO3  0x02000000  /* SWDPIN 3 input or output */
31 #define E1000_CTRL_RST      0x04000000  /* Global reset */
32 #define E1000_CTRL_RFCE     0x08000000  /* Receive Flow Control enable */
33 #define E1000_CTRL_TFCE     0x10000000  /* Transmit flow control enable */
34 #define E1000_CTRL_RTE      0x20000000  /* Routing tag enable */
35 #define E1000_CTRL_VME      0x40000000  /* IEEE VLAN mode enable */
36 #define E1000_CTRL_PHY_RST  0x80000000  /* PHY Reset */
37 
38 /* Device Status */
39 #define E1000_STATUS_FD         0x00000001      /* Full duplex.0=half,1=full */
40 #define E1000_STATUS_LU         0x00000002      /* Link up.0=no,1=link */
41 #define E1000_STATUS_FUNC_MASK  0x0000000C      /* PCI Function Mask */
42 #define E1000_STATUS_FUNC_0     0x00000000      /* Function 0 */
43 #define E1000_STATUS_FUNC_1     0x00000004      /* Function 1 */
44 #define E1000_STATUS_TXOFF      0x00000010      /* transmission paused */
45 #define E1000_STATUS_TBIMODE    0x00000020      /* TBI mode */
46 #define E1000_STATUS_SPEED_MASK 0x000000C0
47 #define E1000_STATUS_SPEED_10   0x00000000      /* Speed 10Mb/s */
48 #define E1000_STATUS_SPEED_100  0x00000040      /* Speed 100Mb/s */
49 #define E1000_STATUS_SPEED_1000 0x00000080      /* Speed 1000Mb/s */
50 #define E1000_STATUS_ASDV       0x00000300      /* Auto speed detect value */
51 #define E1000_STATUS_MTXCKOK    0x00000400      /* MTX clock running OK */
52 #define E1000_STATUS_PCI66      0x00000800      /* In 66Mhz slot */
53 #define E1000_STATUS_BUS64      0x00001000      /* In 64 bit slot */
54 #define E1000_STATUS_PCIX_MODE  0x00002000      /* PCI-X mode */
55 #define E1000_STATUS_PCIX_SPEED 0x0000C000      /* PCI-X bus speed */
56 
57 /* Constants used to intrepret the masked PCI-X bus speed. */
58 #define E1000_STATUS_PCIX_SPEED_66  0x00000000 /* PCI-X bus speed  50-66 MHz */
59 #define E1000_STATUS_PCIX_SPEED_100 0x00004000 /* PCI-X bus speed  66-100 MHz */
60 #define E1000_STATUS_PCIX_SPEED_133 0x00008000 /* PCI-X bus speed 100-133 MHz */
61 
62 /* Receive Control */
63 #define E1000_RCTL_RST          0x00000001      /* Software reset */
64 #define E1000_RCTL_EN           0x00000002      /* enable */
65 #define E1000_RCTL_SBP          0x00000004      /* store bad packet */
66 #define E1000_RCTL_UPE          0x00000008      /* unicast promiscuous enable */
67 #define E1000_RCTL_MPE          0x00000010      /* multicast promiscuous enab */
68 #define E1000_RCTL_LPE          0x00000020      /* long packet enable */
69 #define E1000_RCTL_LBM_NO       0x00000000      /* no loopback mode */
70 #define E1000_RCTL_LBM_MAC      0x00000040      /* MAC loopback mode */
71 #define E1000_RCTL_LBM_SLP      0x00000080      /* serial link loopback mode */
72 #define E1000_RCTL_LBM_TCVR     0x000000C0      /* tcvr loopback mode */
73 #define E1000_RCTL_RDMTS        0x00000300      /* rx desc min threshold size */
74 #define E1000_RCTL_RDMTS_HALF   0x00000000      /* rx desc min threshold size */
75 #define E1000_RCTL_RDMTS_QUAT   0x00000100      /* rx desc min threshold size */
76 #define E1000_RCTL_RDMTS_EIGTH  0x00000200      /* rx desc min threshold size */
77 #define E1000_RCTL_MO_SHIFT     12              /* multicast offset shift */
78 #define E1000_RCTL_MO_0         0x00000000      /* multicast offset 11:0 */
79 #define E1000_RCTL_MO_1         0x00001000      /* multicast offset 12:1 */
80 #define E1000_RCTL_MO_2         0x00002000      /* multicast offset 13:2 */
81 #define E1000_RCTL_MO_3         0x00003000      /* multicast offset 15:4 */
82 #define E1000_RCTL_MDR          0x00004000      /* multicast desc ring 0 */
83 #define E1000_RCTL_BAM          0x00008000      /* broadcast enable */
84 #define E1000_RCTL_SZ           0x00030000      /* rx buffer size */
85 /* these buffer sizes are valid if E1000_RCTL_BSEX is 0 */
86 #define E1000_RCTL_SZ_2048      0x00000000      /* rx buffer size 2048 */
87 #define E1000_RCTL_SZ_1024      0x00010000      /* rx buffer size 1024 */
88 #define E1000_RCTL_SZ_512       0x00020000      /* rx buffer size 512 */
89 #define E1000_RCTL_SZ_256       0x00030000      /* rx buffer size 256 */
90 /* these buffer sizes are valid if E1000_RCTL_BSEX is 1 */
91 #define E1000_RCTL_SZ_16384     0x00010000      /* rx buffer size 16384 */
92 #define E1000_RCTL_SZ_8192      0x00020000      /* rx buffer size 8192 */
93 #define E1000_RCTL_SZ_4096      0x00030000      /* rx buffer size 4096 */
94 #define E1000_RCTL_VFE          0x00040000      /* vlan filter enable */
95 #define E1000_RCTL_CFIEN        0x00080000      /* canonical form enable */
96 #define E1000_RCTL_CFI          0x00100000      /* canonical form indicator */
97 #define E1000_RCTL_DPF          0x00400000      /* discard pause frames */
98 #define E1000_RCTL_PMCF         0x00800000      /* pass MAC control frames */
99 #define E1000_RCTL_BSEX         0x02000000      /* Buffer size extension */
100 
101 /* Transmit Control */
102 #define E1000_TCTL_RST    0x00000001    /* software reset */
103 #define E1000_TCTL_EN     0x00000002    /* enable tx */
104 #define E1000_TCTL_BCE    0x00000004    /* busy check enable */
105 #define E1000_TCTL_PSP    0x00000008    /* pad short packets */
106 #define E1000_TCTL_CT     0x00000ff0    /* collision threshold */
107 #define E1000_TCTL_COLD   0x003ff000    /* collision distance */
108 #define E1000_TCTL_SWXOFF 0x00400000    /* SW Xoff transmission */
109 #define E1000_TCTL_PBE    0x00800000    /* Packet Burst Enable */
110 #define E1000_TCTL_RTLC   0x01000000    /* Re-transmit on late collision */
111 #define E1000_TCTL_NRTU   0x02000000    /* No Re-transmit on underrun */
112 
113 /* M88E1000 PHY Specific Status Register */
114 #define M88_PSSR_JABBER             0x0001 /* 1=Jabber */
115 #define M88_PSSR_REV_POLARITY       0x0002 /* 1=Polarity reversed */
116 #define M88_PSSR_DOWNSHIFT          0x0020 /* 1=Downshifted */
117 #define M88_PSSR_MDIX               0x0040 /* 1=MDIX; 0=MDI */
118 #define M88_PSSR_CABLE_LENGTH       0x0380 /* 0=<50M;1=50-80M;2=80-110M;
119                                             * 3=110-140M;4=>140M */
120 #define M88_PSSR_LINK               0x0400 /* 1=Link up, 0=Link down */
121 #define M88_PSSR_SPD_DPLX_RESOLVED  0x0800 /* 1=Speed & Duplex resolved */
122 #define M88_PSSR_PAGE_RCVD          0x1000 /* 1=Page received */
123 #define M88_PSSR_DPLX               0x2000 /* 1=Duplex 0=Half Duplex */
124 #define M88_PSSR_SPEED              0xC000 /* Speed, bits 14:15 */
125 #define M88_PSSR_10MBS              0x0000 /* 00=10Mbs */
126 #define M88_PSSR_100MBS             0x4000 /* 01=100Mbs */
127 #define M88_PSSR_1000MBS            0x8000 /* 10=1000Mbs */
128 
129 #define M88_PSSR_CL_0_50     (0<<7)
130 #define M88_PSSR_CL_50_80    (1<<7)
131 #define M88_PSSR_CL_80_110   (2<<7)
132 #define M88_PSSR_CL_110_140  (3<<7)
133 #define M88_PSSR_CL_140_PLUS (4<<7)
134 
135 /* M88E1000 PHY Specific Control Register */
136 #define M88_PSCR_JABBER_DISABLE    0x0001  /* 1=Jabber Function disabled */
137 #define M88_PSCR_POLARITY_REVERSAL 0x0002  /* 1=Polarity Reversal enabled */
138 #define M88_PSCR_SQE_TEST          0x0004  /* 1=SQE Test enabled */
139 #define M88_PSCR_CLK125_DISABLE    0x0010  /* 1=CLK125 low,
140                                             * 0=CLK125 toggling
141                                             */
142 #define M88_PSCR_MDI_MASK         0x0060
143 #define M88_PSCR_MDI_MANUAL_MODE  0x0000   /* MDI Crossover Mode bits 6:5 */
144                                           /* Manual MDI configuration */
145 #define M88_PSCR_MDIX_MANUAL_MODE 0x0020   /* Manual MDIX configuration */
146 #define M88_PSCR_AUTO_X_1000T     0x0040   /* 1000BASE-T: Auto crossover,
147                                             *  100BASE-TX/10BASE-T:
148                                             *  MDI Mode
149                                             */
150 #define M88_PSCR_AUTO_X_MODE      0x0060   /* Auto crossover enabled
151                                             * all speeds.
152                                             */
153 #define M88_PSCR_10BT_EXT_DIST_ENABLE 0x0080
154                                    /* 1=Enable Extended 10BASE-T distance
155                                     * (Lower 10BASE-T RX Threshold)
156                                     * 0=Normal 10BASE-T RX Threshold */
157 #define M88_PSCR_MII_5BIT_ENABLE      0x0100
158                                    /* 1=5-Bit interface in 100BASE-TX
159                                     * 0=MII interface in 100BASE-TX */
160 #define M88_PSCR_SCRAMBLER_DISABLE    0x0200       /* 1=Scrambler disable */
161 #define M88_PSCR_FORCE_LINK_GOOD      0x0400       /* 1=Force link good */
162 #define M88_PSCR_ASSERT_CRS_ON_TX     0x0800       /* 1=Assert CRS on Transmit */
163 
164 #define M88_PSCR_POLARITY_REVERSAL_SHIFT    1
165 #define M88_PSCR_AUTO_X_MODE_SHIFT          5
166 #define M88_PSCR_10BT_EXT_DIST_ENABLE_SHIFT 7
167 
168 /* PCI Device IDs */
169 #define E1000_DEV_ID_82542                    0x1000
170 #define E1000_DEV_ID_82543GC_FIBER            0x1001
171 #define E1000_DEV_ID_82543GC_COPPER           0x1004
172 #define E1000_DEV_ID_82544EI_COPPER           0x1008
173 #define E1000_DEV_ID_82544EI_FIBER            0x1009
174 #define E1000_DEV_ID_82544GC_COPPER           0x100C
175 #define E1000_DEV_ID_82544GC_LOM              0x100D
176 #define E1000_DEV_ID_82540EM                  0x100E
177 #define E1000_DEV_ID_82540EM_LOM              0x1015
178 #define E1000_DEV_ID_82540EP_LOM              0x1016
179 #define E1000_DEV_ID_82540EP                  0x1017
180 #define E1000_DEV_ID_82540EP_LP               0x101E
181 #define E1000_DEV_ID_82545EM_COPPER           0x100F
182 #define E1000_DEV_ID_82545EM_FIBER            0x1011
183 #define E1000_DEV_ID_82545GM_COPPER           0x1026
184 #define E1000_DEV_ID_82545GM_FIBER            0x1027
185 #define E1000_DEV_ID_82545GM_SERDES           0x1028
186 #define E1000_DEV_ID_82546EB_COPPER           0x1010
187 #define E1000_DEV_ID_82546EB_FIBER            0x1012
188 #define E1000_DEV_ID_82546EB_QUAD_COPPER      0x101D
189 #define E1000_DEV_ID_82546GB_COPPER           0x1079
190 #define E1000_DEV_ID_82546GB_FIBER            0x107A
191 #define E1000_DEV_ID_82546GB_SERDES           0x107B
192 #define E1000_DEV_ID_82546GB_PCIE             0x108A
193 #define E1000_DEV_ID_82546GB_QUAD_COPPER      0x1099
194 #define E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3 0x10B5
195 #define E1000_DEV_ID_82541EI                  0x1013
196 #define E1000_DEV_ID_82541EI_MOBILE           0x1018
197 #define E1000_DEV_ID_82541ER_LOM              0x1014
198 #define E1000_DEV_ID_82541ER                  0x1078
199 #define E1000_DEV_ID_82541GI                  0x1076
200 #define E1000_DEV_ID_82541GI_LF               0x107C
201 #define E1000_DEV_ID_82541GI_MOBILE           0x1077
202 #define E1000_DEV_ID_82547EI                  0x1019
203 #define E1000_DEV_ID_82547EI_MOBILE           0x101A
204 #define E1000_DEV_ID_82547GI                  0x1075
205 #define E1000_DEV_ID_82571EB_COPPER           0x105E
206 #define E1000_DEV_ID_82571EB_FIBER            0x105F
207 #define E1000_DEV_ID_82571EB_SERDES           0x1060
208 #define E1000_DEV_ID_82571EB_QUAD_COPPER      0x10A4
209 #define E1000_DEV_ID_82571EB_QUAD_FIBER       0x10A5
210 #define E1000_DEV_ID_82571EB_QUAD_COPPER_LP   0x10BC
211 #define E1000_DEV_ID_82572EI_COPPER           0x107D
212 #define E1000_DEV_ID_82572EI_FIBER            0x107E
213 #define E1000_DEV_ID_82572EI_SERDES           0x107F
214 #define E1000_DEV_ID_82572EI                  0x10B9
215 #define E1000_DEV_ID_82573E                   0x108B
216 #define E1000_DEV_ID_82573E_IAMT              0x108C
217 #define E1000_DEV_ID_82573L                   0x109A
218 #define E1000_DEV_ID_80003ES2LAN_COPPER_DPT   0x1096
219 #define E1000_DEV_ID_80003ES2LAN_SERDES_DPT   0x1098
220 #define E1000_DEV_ID_80003ES2LAN_COPPER_SPT   0x10BA
221 #define E1000_DEV_ID_80003ES2LAN_SERDES_SPT   0x10BB
222 #define E1000_DEV_ID_ICH8_IGP_M_AMT           0x1049
223 #define E1000_DEV_ID_ICH8_IGP_AMT             0x104A
224 #define E1000_DEV_ID_ICH8_IGP_C               0x104B
225 #define E1000_DEV_ID_ICH8_IFE                 0x104C
226 #define E1000_DEV_ID_ICH8_IFE_GT              0x10C4
227 #define E1000_DEV_ID_ICH8_IFE_G               0x10C5
228 #define E1000_DEV_ID_ICH8_IGP_M               0x104D
229 
230 #define E1000_82542_2_0_REV_ID 2
231 #define E1000_82542_2_1_REV_ID 3
232 
233 /* Enumerated types specific to the e1000 hardware */
234 /* Media Access Controlers */
235 enum e1000_mac_type {
236 	e1000_undefined = 0,
237 	e1000_82542,
238 	e1000_82543,
239 	e1000_82544,
240 	e1000_82540,
241 	e1000_82545,
242 	e1000_82545_rev_3,
243 	e1000_82546,
244 	e1000_82546_rev_3,
245 	e1000_82541,
246 	e1000_82541_rev_2,
247 	e1000_82547,
248 	e1000_82547_rev_2,
249 	e1000_82571,
250 	e1000_82572,
251 	e1000_82573,
252 	e1000_80003es2lan,
253 	e1000_ich8lan,
254 	e1000_num_macs
255 };
256 
e1000_get_mac_type(u16 device_id)257 static enum e1000_mac_type e1000_get_mac_type(u16 device_id)
258 {
259 	enum e1000_mac_type mac_type = e1000_undefined;
260 
261 	switch (device_id) {
262 	case E1000_DEV_ID_82542:
263 		mac_type = e1000_82542;
264 		break;
265 	case E1000_DEV_ID_82543GC_FIBER:
266 	case E1000_DEV_ID_82543GC_COPPER:
267 		mac_type = e1000_82543;
268 		break;
269 	case E1000_DEV_ID_82544EI_COPPER:
270 	case E1000_DEV_ID_82544EI_FIBER:
271 	case E1000_DEV_ID_82544GC_COPPER:
272 	case E1000_DEV_ID_82544GC_LOM:
273 		mac_type = e1000_82544;
274 		break;
275 	case E1000_DEV_ID_82540EM:
276 	case E1000_DEV_ID_82540EM_LOM:
277 	case E1000_DEV_ID_82540EP:
278 	case E1000_DEV_ID_82540EP_LOM:
279 	case E1000_DEV_ID_82540EP_LP:
280 		mac_type = e1000_82540;
281 		break;
282 	case E1000_DEV_ID_82545EM_COPPER:
283 	case E1000_DEV_ID_82545EM_FIBER:
284 		mac_type = e1000_82545;
285 		break;
286 	case E1000_DEV_ID_82545GM_COPPER:
287 	case E1000_DEV_ID_82545GM_FIBER:
288 	case E1000_DEV_ID_82545GM_SERDES:
289 		mac_type = e1000_82545_rev_3;
290 		break;
291 	case E1000_DEV_ID_82546EB_COPPER:
292 	case E1000_DEV_ID_82546EB_FIBER:
293 	case E1000_DEV_ID_82546EB_QUAD_COPPER:
294 		mac_type = e1000_82546;
295 		break;
296 	case E1000_DEV_ID_82546GB_COPPER:
297 	case E1000_DEV_ID_82546GB_FIBER:
298 	case E1000_DEV_ID_82546GB_SERDES:
299 	case E1000_DEV_ID_82546GB_PCIE:
300 	case E1000_DEV_ID_82546GB_QUAD_COPPER:
301 	case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
302 		mac_type = e1000_82546_rev_3;
303 		break;
304 	case E1000_DEV_ID_82541EI:
305 	case E1000_DEV_ID_82541EI_MOBILE:
306 	case E1000_DEV_ID_82541ER_LOM:
307 		mac_type = e1000_82541;
308 		break;
309 	case E1000_DEV_ID_82541ER:
310 	case E1000_DEV_ID_82541GI:
311 	case E1000_DEV_ID_82541GI_LF:
312 	case E1000_DEV_ID_82541GI_MOBILE:
313 		mac_type = e1000_82541_rev_2;
314 		break;
315 	case E1000_DEV_ID_82547EI:
316 	case E1000_DEV_ID_82547EI_MOBILE:
317 		mac_type = e1000_82547;
318 		break;
319 	case E1000_DEV_ID_82547GI:
320 		mac_type = e1000_82547_rev_2;
321 		break;
322 	case E1000_DEV_ID_82571EB_COPPER:
323 	case E1000_DEV_ID_82571EB_FIBER:
324 	case E1000_DEV_ID_82571EB_SERDES:
325 	case E1000_DEV_ID_82571EB_QUAD_COPPER:
326 	case E1000_DEV_ID_82571EB_QUAD_FIBER:
327 	case E1000_DEV_ID_82571EB_QUAD_COPPER_LP:
328 		mac_type = e1000_82571;
329 		break;
330 	case E1000_DEV_ID_82572EI:
331 	case E1000_DEV_ID_82572EI_COPPER:
332 	case E1000_DEV_ID_82572EI_FIBER:
333 	case E1000_DEV_ID_82572EI_SERDES:
334 		mac_type = e1000_82572;
335 		break;
336 	case E1000_DEV_ID_82573E:
337 	case E1000_DEV_ID_82573E_IAMT:
338 	case E1000_DEV_ID_82573L:
339 		mac_type = e1000_82573;
340 		break;
341 	case E1000_DEV_ID_80003ES2LAN_COPPER_DPT:
342 	case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:
343 	case E1000_DEV_ID_80003ES2LAN_COPPER_SPT:
344 	case E1000_DEV_ID_80003ES2LAN_SERDES_SPT:
345 		mac_type = e1000_80003es2lan;
346 		break;
347 	case E1000_DEV_ID_ICH8_IFE:
348 	case E1000_DEV_ID_ICH8_IFE_GT:
349 	case E1000_DEV_ID_ICH8_IFE_G:
350 	case E1000_DEV_ID_ICH8_IGP_M:
351 	case E1000_DEV_ID_ICH8_IGP_M_AMT:
352 	case E1000_DEV_ID_ICH8_IGP_AMT:
353 	case E1000_DEV_ID_ICH8_IGP_C:
354 		mac_type = e1000_ich8lan;
355 		break;
356 	default:
357 		/* assume old nic and attempt so user can get limited
358 		 * functionality */
359 		mac_type = e1000_82543;
360 		break;
361 	}
362 
363 	return mac_type;
364 }
365 
e1000_dump_regs(struct ethtool_drvinfo * info maybe_unused,struct ethtool_regs * regs)366 int e1000_dump_regs(struct ethtool_drvinfo *info maybe_unused,
367 		    struct ethtool_regs *regs)
368 {
369 	u32 *regs_buff = (u32 *)regs->data;
370 	u16 hw_device_id = (u16)regs->version;
371 	/* u8 hw_revision_id = (u8)(regs->version >> 16); */
372 	u8 version = (u8)(regs->version >> 24);
373 	enum e1000_mac_type mac_type;
374 	u32 reg;
375 
376 	if (version != 1)
377 		return -1;
378 
379 	mac_type = e1000_get_mac_type(hw_device_id);
380 
381 	if(mac_type == e1000_undefined)
382 		return -1;
383 
384 	fprintf(stdout, "MAC Registers\n");
385 	fprintf(stdout, "-------------\n");
386 
387 	/* Device control register */
388 	reg = regs_buff[0];
389 	fprintf(stdout,
390 		"0x00000: CTRL (Device control register)  0x%08X\n"
391 		"      Endian mode (buffers):             %s\n"
392 		"      Link reset:                        %s\n"
393 		"      Set link up:                       %s\n"
394 		"      Invert Loss-Of-Signal:             %s\n"
395 		"      Receive flow control:              %s\n"
396 		"      Transmit flow control:             %s\n"
397 		"      VLAN mode:                         %s\n",
398 		reg,
399 		reg & E1000_CTRL_BEM    ? "big"      : "little",
400 		reg & E1000_CTRL_LRST   ? "reset"    : "normal",
401 		reg & E1000_CTRL_SLU    ? "1"        : "0",
402 		reg & E1000_CTRL_ILOS   ? "yes"      : "no",
403 		reg & E1000_CTRL_RFCE   ? "enabled"  : "disabled",
404 		reg & E1000_CTRL_TFCE   ? "enabled"  : "disabled",
405 		reg & E1000_CTRL_VME    ? "enabled"  : "disabled");
406 	if(mac_type >= e1000_82543) {
407 	fprintf(stdout,
408 		"      Auto speed detect:                 %s\n"
409 		"      Speed select:                      %s\n"
410 		"      Force speed:                       %s\n"
411 		"      Force duplex:                      %s\n",
412 		reg & E1000_CTRL_ASDE   ? "enabled"  : "disabled",
413 		(reg & E1000_CTRL_SPD_SEL) == E1000_CTRL_SPD_10   ? "10Mb/s"   :
414 		(reg & E1000_CTRL_SPD_SEL) == E1000_CTRL_SPD_100  ? "100Mb/s"  :
415 		(reg & E1000_CTRL_SPD_SEL) == E1000_CTRL_SPD_1000 ? "1000Mb/s" :
416 		"not used",
417 		reg & E1000_CTRL_FRCSPD ? "yes"      : "no",
418 		reg & E1000_CTRL_FRCDPX ? "yes"      : "no");
419 	}
420 
421 	/* Device status register */
422 	reg = regs_buff[1];
423 	fprintf(stdout,
424 		"0x00008: STATUS (Device status register) 0x%08X\n"
425 		"      Duplex:                            %s\n"
426 		"      Link up:                           %s\n",
427 		reg,
428 		reg & E1000_STATUS_FD      ? "full"        : "half",
429 		reg & E1000_STATUS_LU      ? "link config" : "no link config");
430 	if (mac_type >= e1000_82571) {
431 	fprintf(stdout,
432 		"      TBI mode:                          %s\n"
433 		"      Link speed:                        %s\n"
434 		"      Bus type:                          %s\n"
435 		"      Port number:                       %s\n",
436 		reg & E1000_STATUS_TBIMODE ? "enabled"     : "disabled",
437 		(reg & E1000_STATUS_SPEED_MASK) == E1000_STATUS_SPEED_10   ?
438 		"10Mb/s" :
439 		(reg & E1000_STATUS_SPEED_MASK) == E1000_STATUS_SPEED_100  ?
440 		"100Mb/s" :
441 		(reg & E1000_STATUS_SPEED_MASK) == E1000_STATUS_SPEED_1000 ?
442 		"1000Mb/s" : "not used",
443 		"PCI Express",
444 		(reg & E1000_STATUS_FUNC_MASK) == 0 ? "0" : "1");
445 	}
446 	else if (mac_type >= e1000_82543) {
447 	fprintf(stdout,
448 		"      TBI mode:                          %s\n"
449 		"      Link speed:                        %s\n"
450 		"      Bus type:                          %s\n"
451 		"      Bus speed:                         %s\n"
452 		"      Bus width:                         %s\n",
453 		reg & E1000_STATUS_TBIMODE ? "enabled"     : "disabled",
454 		(reg & E1000_STATUS_SPEED_MASK) == E1000_STATUS_SPEED_10   ?
455 		"10Mb/s" :
456 		(reg & E1000_STATUS_SPEED_MASK) == E1000_STATUS_SPEED_100  ?
457 		"100Mb/s" :
458 		(reg & E1000_STATUS_SPEED_MASK) == E1000_STATUS_SPEED_1000 ?
459 		"1000Mb/s" : "not used",
460 		(reg & E1000_STATUS_PCIX_MODE) ? "PCI-X" : "PCI",
461 		(reg & E1000_STATUS_PCIX_MODE) ?
462 			((reg & E1000_STATUS_PCIX_SPEED_133) ? "133MHz" :
463 			(reg & E1000_STATUS_PCIX_SPEED_100) ? "100MHz" :
464 			"66MHz")	       :
465 			((reg & E1000_STATUS_PCI66) ? "66MHz" : "33MHz"),
466 		(reg & E1000_STATUS_BUS64) ? "64-bit" : "32-bit");
467 	}
468 
469 	/* Receive control register */
470 	reg = regs_buff[2];
471 	fprintf(stdout,
472 		"0x00100: RCTL (Receive control register) 0x%08X\n"
473 		"      Receiver:                          %s\n"
474 		"      Store bad packets:                 %s\n"
475 		"      Unicast promiscuous:               %s\n"
476 		"      Multicast promiscuous:             %s\n"
477 		"      Long packet:                       %s\n"
478 		"      Descriptor minimum threshold size: %s\n"
479 		"      Broadcast accept mode:             %s\n"
480 		"      VLAN filter:                       %s\n"
481 		"      Canonical form indicator:          %s\n"
482 		"      Discard pause frames:              %s\n"
483 		"      Pass MAC control frames:           %s\n",
484 		reg,
485 		reg & E1000_RCTL_EN      ? "enabled"  : "disabled",
486 		reg & E1000_RCTL_SBP     ? "enabled"  : "disabled",
487 		reg & E1000_RCTL_UPE     ? "enabled"  : "disabled",
488 		reg & E1000_RCTL_MPE     ? "enabled"  : "disabled",
489 		reg & E1000_RCTL_LPE     ? "enabled"  : "disabled",
490 		(reg & E1000_RCTL_RDMTS) == E1000_RCTL_RDMTS_HALF  ? "1/2" :
491 		(reg & E1000_RCTL_RDMTS) == E1000_RCTL_RDMTS_QUAT  ? "1/4" :
492 		(reg & E1000_RCTL_RDMTS) == E1000_RCTL_RDMTS_EIGTH ? "1/8" :
493 		"reserved",
494 		reg & E1000_RCTL_BAM     ? "accept"   : "ignore",
495 		reg & E1000_RCTL_VFE     ? "enabled"  : "disabled",
496 		reg & E1000_RCTL_CFIEN   ? "enabled"  : "disabled",
497 		reg & E1000_RCTL_DPF     ? "ignored"  : "filtered",
498 		reg & E1000_RCTL_PMCF    ? "pass"     : "don't pass");
499 	if(mac_type >= e1000_82543) {
500 	fprintf(stdout,
501 		"      Receive buffer size:               %s\n",
502 		reg & E1000_RCTL_BSEX    ?
503 			((reg & E1000_RCTL_SZ)==E1000_RCTL_SZ_16384 ? "16384" :
504 			 (reg & E1000_RCTL_SZ)==E1000_RCTL_SZ_8192  ? "8192"  :
505 			 (reg & E1000_RCTL_SZ)==E1000_RCTL_SZ_4096  ? "4096"  :
506 			 "reserved")     :
507 			((reg & E1000_RCTL_SZ)==E1000_RCTL_SZ_2048  ? "2048"  :
508 			 (reg & E1000_RCTL_SZ)==E1000_RCTL_SZ_1024  ? "1024"  :
509 			 (reg & E1000_RCTL_SZ)==E1000_RCTL_SZ_512   ? "512"   :
510 			 "256"));
511 	} else {
512 	fprintf(stdout,
513 		"      Receive buffer size:               %s\n",
514 		(reg & E1000_RCTL_SZ) == E1000_RCTL_SZ_2048  ? "2048"  :
515 		(reg & E1000_RCTL_SZ) == E1000_RCTL_SZ_1024  ? "1024"  :
516 		(reg & E1000_RCTL_SZ) == E1000_RCTL_SZ_512   ? "512"   :
517 		"256");
518 	}
519 
520 	/* Receive descriptor registers */
521 	fprintf(stdout,
522 		"0x02808: RDLEN (Receive desc length)     0x%08X\n",
523 		regs_buff[3]);
524 	fprintf(stdout,
525 		"0x02810: RDH   (Receive desc head)       0x%08X\n",
526 		regs_buff[4]);
527 	fprintf(stdout,
528 		"0x02818: RDT   (Receive desc tail)       0x%08X\n",
529 		regs_buff[5]);
530 	fprintf(stdout,
531 		"0x02820: RDTR  (Receive delay timer)     0x%08X\n",
532 		regs_buff[6]);
533 
534 	/* Transmit control register */
535 	reg = regs_buff[7];
536 	fprintf(stdout,
537 		"0x00400: TCTL (Transmit ctrl register)   0x%08X\n"
538 		"      Transmitter:                       %s\n"
539 		"      Pad short packets:                 %s\n"
540 		"      Software XOFF Transmission:        %s\n",
541 		reg,
542 		reg & E1000_TCTL_EN      ? "enabled"  : "disabled",
543 		reg & E1000_TCTL_PSP     ? "enabled"  : "disabled",
544 		reg & E1000_TCTL_SWXOFF  ? "enabled"  : "disabled");
545 	if(mac_type >= e1000_82543) {
546 	fprintf(stdout,
547 		"      Re-transmit on late collision:     %s\n",
548 		reg & E1000_TCTL_RTLC    ? "enabled"  : "disabled");
549 	}
550 
551 	/* Transmit descriptor registers */
552 	fprintf(stdout,
553 		"0x03808: TDLEN (Transmit desc length)    0x%08X\n",
554 		regs_buff[8]);
555 	fprintf(stdout,
556 		"0x03810: TDH   (Transmit desc head)      0x%08X\n",
557 		regs_buff[9]);
558 	fprintf(stdout,
559 		"0x03818: TDT   (Transmit desc tail)      0x%08X\n",
560 		regs_buff[10]);
561 	fprintf(stdout,
562 		"0x03820: TIDV  (Transmit delay timer)    0x%08X\n",
563 		regs_buff[11]);
564 
565 	/* PHY type */
566 	fprintf(stdout,
567 		"PHY type:                                %s\n",
568 		regs_buff[12] == 0 ? "M88" :
569 		regs_buff[12] == 1 ? "IGP" :
570 		regs_buff[12] == 2 ? "IGP2" : "unknown" );
571 
572 	if (0 == regs_buff[12]) {
573 		reg = regs_buff[13];
574 		fprintf(stdout,
575 			"M88 PHY STATUS REGISTER:                 0x%08X\n"
576 			"      Jabber:                            %s\n"
577 			"      Polarity:                          %s\n"
578 			"      Downshifted:                       %s\n"
579 			"      MDI/MDIX:                          %s\n"
580 			"      Cable Length Estimate:             %s meters\n"
581 			"      Link State:                        %s\n"
582 			"      Speed & Duplex Resolved:           %s\n"
583 			"      Page Received:                     %s\n"
584 			"      Duplex:                            %s\n"
585 			"      Speed:                             %s mbps\n",
586 			reg,
587 			reg & M88_PSSR_JABBER       ? "yes"     : "no",
588 			reg & M88_PSSR_REV_POLARITY ? "reverse" : "normal",
589 			reg & M88_PSSR_DOWNSHIFT    ? "yes"     : "no",
590 			reg & M88_PSSR_MDIX         ? "MDIX"    : "MDI",
591 			((reg & M88_PSSR_CABLE_LENGTH)==M88_PSSR_CL_0_50 ? "0-50"
592 				: (reg & M88_PSSR_CABLE_LENGTH)==M88_PSSR_CL_50_80 ? "50-80"
593 				: (reg & M88_PSSR_CABLE_LENGTH)==M88_PSSR_CL_80_110 ? "80-110"
594 				: (reg & M88_PSSR_CABLE_LENGTH)==M88_PSSR_CL_110_140? "110-140"
595 				: (reg & M88_PSSR_CABLE_LENGTH)==M88_PSSR_CL_140_PLUS ? "140+"
596 				: "unknown"),
597 			reg & M88_PSSR_LINK              ? "Up"      : "Down",
598 			reg & M88_PSSR_SPD_DPLX_RESOLVED ? "Yes"     : "No",
599 			reg & M88_PSSR_PAGE_RCVD         ? "Yes"     : "No",
600 			reg & M88_PSSR_DPLX              ? "Full"    : "Half",
601 			((reg & M88_PSSR_SPEED)==M88_PSSR_10MBS        ? "10"
602 				: (reg & M88_PSSR_SPEED)==M88_PSSR_100MBS  ? "100"
603 				: (reg & M88_PSSR_SPEED)==M88_PSSR_1000MBS ? "1000"
604 				: "unknown")
605 		);
606 
607 		reg = regs_buff[17];
608 		fprintf(stdout,
609 			"M88 PHY CONTROL REGISTER:                0x%08X\n"
610 			"      Jabber function:                   %s\n"
611 			"      Auto-polarity:                     %s\n"
612 			"      SQE Test:                          %s\n"
613 			"      CLK125:                            %s\n"
614 			"      Auto-MDIX:                         %s\n"
615 			"      Extended 10Base-T Distance:        %s\n"
616 			"      100Base-TX Interface:              %s\n"
617 			"      Scrambler:                         %s\n"
618 			"      Force Link Good:                   %s\n"
619 			"      Assert CRS on Transmit:            %s\n",
620 			reg,
621 			reg & M88_PSCR_JABBER_DISABLE    ? "disabled" : "enabled",
622 			reg & M88_PSCR_POLARITY_REVERSAL ? "enabled"  : "disabled",
623 			reg & M88_PSCR_SQE_TEST          ? "enabled"  : "disabled",
624 			reg & M88_PSCR_CLK125_DISABLE    ? "disabled" : "enabled",
625 			((reg & M88_PSCR_MDI_MASK)==M88_PSCR_MDI_MANUAL_MODE ? "force MDI"
626 				: (reg & M88_PSCR_MDI_MASK)==M88_PSCR_MDIX_MANUAL_MODE ? "force MDIX"
627 				: (reg & M88_PSCR_MDI_MASK)==M88_PSCR_AUTO_X_1000T ? "1000 auto, 10/100 MDI"
628 				: (reg & M88_PSCR_MDI_MASK)==M88_PSCR_AUTO_X_MODE ? "auto"
629 				: "wtf"),
630 			reg & M88_PSCR_10BT_EXT_DIST_ENABLE ? "enabled" : "disabled",
631 			reg & M88_PSCR_MII_5BIT_ENABLE ? "5-bit" : "MII",
632 			reg & M88_PSCR_SCRAMBLER_DISABLE ? "disabled" : "enabled",
633 			reg & M88_PSCR_FORCE_LINK_GOOD ? "forced" : "disabled",
634 			reg & M88_PSCR_ASSERT_CRS_ON_TX ? "enabled" : "disabled"
635 		);
636 	}
637 
638 	return 0;
639 }
640 
641