xref: /minix/minix/drivers/net/fxp/fxp.h (revision 9f81acbc)
1 /*
2 ibm/fxp.h
3 
4 Registers and datastructures of the Intel 82557, 82558, 82559, 82550,
5 and 82562 fast ethernet controllers.
6 
7 Created:	Nov 2004 by Philip Homburg <philip@f-mnx.phicoh.com>
8 */
9 
10 #ifndef _FXP_FXP_H
11 #define _FXP_FXP_H
12 
13 #define VERBOSE 	0	/* display output during intialization */
14 
15 /* Revisions in PCI_REV */
16 #define FXP_REV_82557A		0x01
17 #define FXP_REV_82557B		0x02
18 #define FXP_REV_82557C		0x03
19 #define FXP_REV_82558A		0x04
20 #define FXP_REV_82558B		0x05
21 #define FXP_REV_82559A		0x06
22 #define FXP_REV_82559B		0x07
23 #define FXP_REV_82559C		0x08
24 #define FXP_REV_82559ERA	0x09
25 #define FXP_REV_82550_1 	0x0C
26 #define FXP_REV_82550_2		0x0D
27 #define FXP_REV_82550_3		0x0E
28 #define FXP_REV_82551_1		0x0F
29 #define FXP_REV_82551_2		0x10
30 #define FXP_REV_82801CAM	0x42
31 #define FXP_REV_82801DB		0x81
32 #define FXP_REV_82550_4		0x83
33 
34 /* Control/Status Registers (CSR). The first 8 bytes are called
35  * System Control Block (SCB)
36  */
37 #define SCB_STATUS	0x00	/* Lower half of the SCB status word. CU and
38 				 * RU status.
39 				 */
40 #define	    SS_CUS_MASK		0xC0	/* CU Status */
41 #define		SS_CU_IDLE		0x00	/* Idle */
42 #define		SS_CU_SUSP		0x40	/* Suspended */
43 #define		SS_CU_LPQA		0x80	/* LPQ Active */
44 #define		SS_CU_HQPA		0xC0	/* HQP Active */
45 #define	    SS_RUS_MASK		0x3C	/* RU Status */
46 #define		SS_RU_IDLE		0x00	/* Idle */
47 #define		SS_RU_SUSP		0x04	/* Suspended */
48 #define		SS_RU_NORES		0x08	/* No Resources */
49 #define		SS_RU_READY		0x10	/* Ready */
50 						/* Other values are reserved */
51 #define	    SS_RESERVED		0x03	/* Reserved */
52 #define SCB_INT_STAT	0x01	/* Upper half of the SCB status word.
53 				 * Interrupt status. Also used to acknoledge
54 				 * interrupts.
55 				 */
56 #define		SIS_CX	0x80	/* CU command with interrupt bit set. On
57 				 * 82557 also TNO Interrupt.
58 				 */
59 #define		SIS_FR	0x40	/* Frame Received */
60 #define		SIS_CNA	0x20	/* CU Not Active */
61 #define		SIS_RNR	0x10	/* RU Not Ready */
62 #define		SIS_MDI	0x08	/* MDI read/write cycle completed */
63 #define		SIS_SWI	0x04	/* Software Interrupt */
64 #define		SIS_RES	0x02	/* Reserved */
65 #define		SIS_FCP	0x01	/* Flow Control Pause Interrupt (82558 and
66 				 * later, reserved on 82557)
67 				 */
68 #define SCB_CMD		0x02	/* Lower half of the SCB command word. CU and
69 				 * RU commands.
70 				 */
71 #define	    SC_CUC_MASK		0xF0
72 #define		SC_CU_NOP		0x00	/* NOP */
73 #define		SC_CU_START		0x10	/* Start CU */
74 #define		SC_CU_RESUME		0x20	/* Resume CU */
75 #define		SC_CU_LOAD_DCA		0x40	/* Load Dump Counters Address */
76 #define		SC_CU_DUMP_SC		0x50	/* Dump Statistical Counters */
77 #define		SC_CU_LOAD_BASE		0x60	/* Load CU Base */
78 #define		SC_CU_DUMP_RSET_SC	0x70	/* Dump and Reset Counters */
79 #define		SC_CU_STATIC_RESUME	0xA0	/* Static Resume, 82558 and
80 						 * above
81 						 */
82 #define	    SC_RESERVED		0x08	/* Reserved */
83 #define	    SC_RUC_MASK		0x07	/* RU Command Mask */
84 #define		SC_RU_NOP		0x00	/* NOP */
85 #define		SC_RU_START		0x01	/* Start RU */
86 #define		SC_RU_RESUME		0x02	/* Resume RU */
87 #define		SC_RU_DMA_REDIR		0x03	/* DMA Redirect */
88 #define		SC_RU_ABORT		0x04	/* Abort RU */
89 #define		SC_RU_LOAD_HDR		0x05	/* Load Header Data Size */
90 #define		SC_RU_LOAD_BASE		0x06	/* Load RU Base */
91 #define SCB_INT_MASK	0x03	/* Upper half of the SCB command word.
92 				 * Interrupt mask. Can also be used to
93 				 * generate a 'software' interrupt.
94 				 */
95 				/* The following 6 mask bits are not valid on
96 				 * the 82557.
97 				 */
98 #define	    SIM_CX	0x80	/* Mask CX */
99 #define	    SIM_FR	0x40	/* Mask FR */
100 #define	    SIM_CNA	0x20	/* Mask CNA */
101 #define	    SIM_RNR	0x10	/* Mask RNR */
102 #define	    SIM_ER	0x08	/* Mask ER */
103 #define	    SIM_FCP	0x04	/* Mask FCP */
104 #define	    SIM_SI	0x02	/* Generate Software Interrupt */
105 #define	    SIM_M	0x01	/* Mask all interrupts */
106 #define SCB_POINTER	0x04	/* A 32-bit (pointer) argument for CU and RU
107 				 * commands.
108 				 */
109 #define CSR_PORT	0x08	/* Control functions that bypass the SCB */
110 #define	    CP_PTR_MASK		0xFFFFFFF0	/* Argument pointer */
111 #define	    CP_CMD_MASK		0x0000000F	/* Commands bits */
112 #define		CP_CMD_SOFT_RESET	0x00000000	/* Software reset */
113 #define	    	    CSR_PORT_RESET_DELAY	10	/* Wait for reset to
114 							 * complete. In micro
115 							 * seconds.
116 							 */
117 #define		CP_CMD_SELF_TEST	0x00000001	/* Self test */
118 #define		CP_CMD_SEL_RESET	0x00000002	/* Selective reset */
119 #define		CP_CMD_DUMP		0x00000003	/* Dump */
120 #define		CP_CMD_DUMP_WAKEUP	0x00000007	/* Dump and wake-up,
121 							 * 82559 and later.
122 							 */
123 #define	CSR_RESERVED	0x0C	/* reserved, 16-bits */
124 #define CSR_EEPROM	0x0E	/* EEPROM Control Register */
125 #define	    CE_RESERVED	0xF0	/* Reserved */
126 #define	    CE_EEDO	0x08	/* Serial Data Out  (of the EEPROM) */
127 #define	    CE_EEDI	0x04	/* Serial Data In (to the EEPROM) */
128 #define	    CE_EECS	0x02	/* Chip Select */
129 #define	    CE_EESK	0x01	/* Serial Clock */
130 #define CSR_RESERVED1	0x0F	/* Reserved */
131 #define CSR_MDI_CTL	0x10	/* MDI Control Register, 32-bits */
132 #define	    CM_RESERVED		0xC0000000	/* Reserved */
133 #define	    CM_IE		0x20000000	/* Enable Interrupt */
134 #define	    CM_READY		0x10000000	/* Command completed */
135 #define	    CM_OPCODE_MASK	0x0C000000	/* Opcode */
136 #define		CM_WRITE		0x04000000	/* Write */
137 #define		CM_READ			0x08000000	/* Read */
138 #define	    CM_PHYADDR_MASK	0x03E00000	/* Which PHY */
139 #define		CM_PHYADDR_SHIFT 21
140 #define	    CM_REG_MASK		0x001F0000	/* Which register in the PHY */
141 #define	    	CM_REG_SHIFT	16
142 #define	    CM_DATA_MASK	0x0000FFFF	/* Data to be read or written */
143 
144 /* Control Block List (CBL) commands */
145 #define CBL_NOP		0	/* No-operation */
146 #define CBL_AIS		1	/* Individual Address Setup */
147 #define CBL_CONF	2	/* Configure NIC */
148 #define CBL_MAS		3	/* Multicast Address Setup */
149 #define CBL_XMIT	4	/* Transmit */
150 #define CBL_LM		5	/* Load Microcode */
151 #define CBL_DUMP	6	/* Dump Internal Registers */
152 #define CBL_DIAG	7	/* Diagnose Command */
153 
154 /* Common command fields */
155 #define CBL_C_CMD_MASK	0x0007	/* Command bits */
156 #define CBL_C_EL	0x8000	/* End of CBL */
157 #define CBL_C_S		0x4000	/* Suspend after the completion of the CB */
158 #define CBL_C_I		0x2000	/* Request CX Interrupt */
159 #define CBL_C_RES	0x1FF8	/* Reserved */
160 
161 /* Command flags */
162 #define CBL_F_C		0x8000	/* Command has completed */
163 #define CBL_F_RES1	0x4000	/* Reserved */
164 #define CBL_F_OK	0x2000	/* Command was executed without errors */
165 #define CBL_F_RES0	0x1FFF	/* Reserved */
166 
167 /* Individual Address Setup (1) */
168 struct ias
169 {
170 	u16_t ias_status;
171 	u16_t ias_command;
172 	u32_t ias_linkaddr;
173 	u8_t ias_ethaddr[6];
174 	u8_t ias_reserved[2];
175 };
176 
177 /* Configure (2) */
178 #define CC_BYTES_NR	22	/* Number of configuration bytes */
179 struct cbl_conf
180 {
181 	u16_t cc_status;
182 	u16_t cc_command;
183 	u32_t cc_linkaddr;
184 	u8_t cc_bytes[CC_BYTES_NR];
185 };
186 
187 /* Byte 0 */
188 #define CCB0_RES	0xC0	/* Reserved (0) */
189 #define CCB0_BYTECOUNT	0x3F	/* Byte Count (typically either 8 or 22) */
190 
191 /* Byte 1 */
192 #define CCB1_RES	0x80	/* Reserved (0) */
193 #define CCB1_TXFIFO_LIM	0x70	/* Transmit FIFO Limit, in DWORDS */
194 #define		CTL_DEFAULT	0x00	/* 0 bytes */
195 #define CCB1_RXFIFO_LIM	0x0F	/* Receive FIFO Limit */
196 #define		CRL_DEFAULT	0x08	/* 32 bytes on 82557, 64 bytes on
197 					 * 82558/82559.
198 					 */
199 
200 /* Byte 2 */
201 #define CCB2_AIFS	0xFF	/* Adaptive IFS */
202 #define		CAI_DEFAULT	0
203 
204 /* Byte 3 */
205 				/* Reserved (must be 0) on 82557 */
206 #define CCB3_RES	0xF0	/* Reserved (0) */
207 #define	CCB3_TWCL	0x08	/* Terminate Write on Cache Line */
208 #define	CCB3_RAE	0x04	/* Read Alignment Enable */
209 #define	CCB3_TE		0x02	/* Type Enable??? */
210 #define	CCB3_MWIE	0x01	/* Memory Write and Invalidate (MWI) Enable
211 				 * Additionally the MWI bit in the PCI
212 				 * command register has to be set.
213 				 * Recommended by Intel.
214 				 */
215 
216 /* Byte 4 */
217 #define CCB4_RES	0x80	/* Reserved (0) */
218 #define CCB4_RXDMA_MAX	0x7F	/* Receive DMA Maximum Byte Count */
219 
220 /* Byte 5 */
221 #define CCB5_DMBCE	0x80	/* DMA Maximum Byte Count Enable */
222 #define CCB5_TXDMA_MAX	0x7F	/* Transmit DMA Maximum Byte Count */
223 
224 /* Byte 6 */
225 #define CCB6_SBF	0x80	/* Save Bad Frames */
226 #define CCB6_DORF	0x40	/* (Do not) Discard Overrun Receive Frame,
227 				 * Set this bit to keep them.
228 				 */
229 #define CCB6_ESC	0x20	/* Extended Statistical Counter. Reserved
230 				 * on 82557, must be set to 1.
231 				 * Clear this bit to get more counters.
232 				 */
233 #define CCB6_ETCB	0x10	/* Extended Transmit CB. Reserved on 82557,
234 				 * must be set to 1.
235 				 * Clear this bit to use Extended TxCBs.
236 				 */
237 #define CCB6_CI_INT	0x08	/* CPU Idle (CI) Interrupt. Generate a
238 				 * CI Int (bit set) or a CNA Int (bit clear)
239 				 * when the CU goes to the idle state (or
240 				 * to suspended for CNA).
241 				 */
242 #define CCB6_TNO_INT	0x04	/* Enable TNO Interrupt (82557 only) */
243 #define CCB6_TCOSC	0x04	/* TCO Statistical Counter (82559 only) */
244 #define CCB6_RES	0x02	/* Reserved, must be set to 1. Called "disable
245 				 * direct rcv dma mode" by the FreeBSD
246 				 * driver.
247 				 */
248 #define CCB6_LSCB	0x01	/* Late SCB Update. Only on 82557. */
249 
250 /* Byte 7 */
251 #define CCB7_DTBD	0x80	/* Dynamic TBD. Reserved on 82557, should be
252 				 * be set to 0.
253 				 */
254 #define CCB7_2FFIFO	0x40	/* (At Most) Two Frames in FIFO. Reserved on
255 				 * 82557, should be set to 0.
256 				 */
257 #define CCB7_RES	0x38	/* Reserved (0) */
258 #define CCB7_UR		0x06	/* Underrun Retry */
259 #define	    CUR_0		0x00	/* No re-transmission */
260 #define	    CUR_1		0x02	/* One re-transmission */
261 #define	    CUR_2		0x04	/* Two re-transmissions, 1st retry with
262 					 * 512 bytes.
263 					 */
264 #define	    CUR_3		0x06	/* Tree re-transmissions, 1st retry
265 					 * with 512 bytes, 2nd retry with 1024.
266 					 */
267 #define CCB7_DSRF	0x01	/* Discard Short Receive Frames. */
268 
269 /* Byte 8 */
270 #define CCB8_CSMAD	0x80	/* CSMA Disable. Reserved on 82557, should be
271 				 * set to zero.
272 				 */
273 #define CCB8_RES	0x7E	/* Reserved (0) */
274 #define CCB8_503_MII	0x01	/* 503 mode or MII mode. Reserved on 82558
275 				 * and 82559, should be set to 1.
276 				 */
277 
278 /* Byte 9 */
279 #define CCB9_MMWE	0x80	/* Multicast Match Wake Enable. 82558 B-step
280 				 * only, should be set to zero on other
281 				 * devices.
282 				 */
283 #define CCB9_AWE	0x40	/* ARP Wake-up Enable. 82558 B-step only,
284 				 * should be set to zero on other devices.
285 				 */
286 #define CCB9_LSCWE	0x20	/* Link Status Change Wake Enable. Available
287 				 * on 82558 B-step and 82559. Should be
288 				 * set to zero on 82557 and 82558 A-step
289 				 */
290 #define CCB9_VARP	0x10	/* VLAN ARP (82558 B-step) or VLAN TCO (82559).
291 				 * Should be zero on 82557 and 82558 A-step
292 				 */
293 #define CCB9_RES	0x0E	/* Reserved (0) */
294 #define CCB9_TUC	0x01	/* TCP/UDP Checksum. 82559 only, should be
295 				 * zero on other devices.
296 				 */
297 
298 /* Byte 10 */
299 #define CCB10_LOOPBACK	0xC0	/* Loopback mode */
300 #define	    CLB_NORMAL		0x00	/* Normal operation */
301 #define	    CLB_INTERNAL	0x40	/* Internal loopback */
302 #define	    CLB_RESERVED	0x80	/* Reserved */
303 #define	    CLB_EXTERNAL	0xC0	/* External loopback */
304 #define CCB10_PAL	0x30	/* Pre-amble length */
305 #define	    CPAL_1		0x00	/* 1 byte */
306 #define	    CPAL_3		0x10	/* 3 bytes */
307 #define	    CPAL_7		0x20	/* 7 bytes */
308 #define	    CPAL_15		0x30	/* 15 bytes */
309 #define	    CPAL_DEFAULT	CPAL_7
310 #define CCB10_NSAI		0x08	/* No Source Address Insertion */
311 #define CCB10_RES1		0x06	/* Reserved, should be set to 1 */
312 #define CCB10_RES0		0x01	/* Reserved (0) */
313 
314 /* Byte 11 */
315 #define CCB11_RES		0xF8	/* Reserved (0) */
316 #define CCB11_LINPRIO		0x07	/* Linear Priority. 82557 only,
317 					 * should be zero on other devices.
318 					 */
319 
320 /* Byte 12 */
321 #define CCB12_IS		0xF0	/* Interframe spacing in multiples of
322 					 * 16 bit times.
323 					 */
324 #define	    CIS_DEFAULT			0x60	/* 96 (6 in register) */
325 #define	CCB12_RES		0x0E	/* Reserved (0) */
326 #define	CCB12_LPM		0x01	/* Linear Priority Mode. 82557 only,
327 					 * should be zero on other devices.
328 					 */
329 
330 /* Byte 13, 4th byte of IP address for ARP frame filtering. Only valid on
331  * 82558 B-step. Should be 0 on other devices.
332  */
333 #define CCB13_DEFAULT		0x00
334 /* Byte 14, 3rd byte of IP address for ARP fram efiltering. Only valid on
335  * 82558 B-step. Should be 0xF2 on other devices.
336  */
337 #define CCB14_DEFAULT		0xF2
338 
339 /* Byte 15 */
340 #define CCB15_CRSCDT		0x80	/* CRS or CDT. */
341 #define CCB15_RES1		0x40	/* Reserved, should be set to one. */
342 #define CCB15_CRC16		0x20	/* 16-bit CRC. Only on 82559,
343 					 * should be zero on other devices
344 					 */
345 #define CCB15_IUL		0x10	/* Ignore U/L. Reserved on 82557 and
346 					 * should be set to zero.
347 					 */
348 #define CCB15_RES2		0x08	/* Reserved, should be set to one. */
349 #define CCB15_WAW		0x04	/* Wait After Win. Reserved on 82557,
350 					 * should be set to zero.
351 					 */
352 #define CCB15_BD		0x02	/* Broadcast disable */
353 #define CCB15_PM		0x01	/* Promiscuous mode */
354 
355 /* Byte 16. FC Delay Least Significant Byte. Reserved on the 82557 and
356  * should be set to zero.
357  */
358 #define CCB16_DEFAULT		0x00
359 
360 /* Byte 17. FC Delay Most Significant Byte. This byte is reserved on the
361  * 82557 and should be set to 0x40.
362  */
363 #define CCB17_DEFAULT		0x40
364 
365 /* Byte 18 */
366 #define CCB18_RES1		0x80	/* Reserved, should be set to 1 */
367 #define CCB18_PFCT		0x70	/* Priority Flow Control Threshold.
368 					 * Reserved on the 82557 and should
369 					 * be set to 1. All bits 1 (disabled)
370 					 * is the recommended default.
371 					 */
372 #define CCB18_LROK		0x08	/* Long Receive OK. Reserved on the
373 					 * 82557 and should be set to zero.
374 					 * Required for VLANs.
375 					 */
376 #define CCB18_RCRCT		0x04	/* Receive CRC Transfer */
377 #define CCB18_PE		0x02	/* Padding Enable */
378 #define CCB18_SE		0x01	/* Stripping Enable */
379 
380 /* Byte 19 */
381 #define CCB19_FDPE		0x80	/* Full Duplex Pin Enable */
382 #define CCB19_FFD		0x40	/* Force Full Duplex */
383 #define CCB19_RFC		0x20	/* Reject FC. Reserved on the 82557
384 					 * and should be set to zero.
385 					 */
386 #define CCB19_FDRSTAFC		0x10	/* Full Duplex Restart Flow Control.
387 					 * Reserved on the 82557 and should be
388 					 * set to zero.
389 					 */
390 #define CCB19_FDRSTOFC		0x08	/* Full Duplex Restop Flow Control.
391 					 * Reserved on the 82557 and should be
392 					 * set to zero.
393 					 */
394 #define CCB19_FDTFCD		0x04	/* Full Duplex Transmit Flow Control
395 					 * Disable. Reserved on the 82557 and
396 					 * should be set to zero.
397 					 */
398 #define CCB19_MPWD		0x02	/* Magic Packet Wake-up Disable.
399 					 * Reserved on the 82557 and 82559ER
400 					 * and should be set to zero.
401 					 */
402 #define CCB19_AW		0x01	/* Address Wake-up (82558 A-step) and
403 					 * IA Match Wake Enable (82558 B-step)
404 					 * Reserved on the 82557 and 82559 and
405 					 * should be set to zero.
406 					 */
407 
408 /* Byte 20 */
409 #define CCB20_RES		0x80	/* Reserved (0) */
410 #define CCB20_MIA		0x40	/* Multiple IA */
411 #define CCB20_PFCL		0x20	/* Priority FC Location. Reserved on
412 					 * the 82557 and should be set to 1.
413 					 */
414 #define CCB20_RES1		0x1F	/* Reserved, should be set to 1 */
415 
416 /* Byte 21 */
417 #define CCB21_RES		0xF0	/* Reserved (0) */
418 #define CCB21_MA		0x08	/* Multicast All */
419 #define CCB21_RES1_MASK		0x07	/* Reserved, should be set to 5 */
420 #define     CCB21_RES21			0x05
421 
422 /* Transmit (4) */
423 struct tx
424 {
425 	u16_t tx_status;
426 	u16_t tx_command;
427 	u32_t tx_linkaddr;
428 	u32_t tx_tbda;
429 	u16_t tx_size;
430 	u8_t tx_tthresh;
431 	u8_t tx_ntbd;
432 	u8_t tx_buf[NDEV_ETH_PACKET_MAX_TAGGED];
433 };
434 
435 #define TXS_C		0x8000	/* Transmit DMA has completed */
436 #define TXS_RES		0x4000	/* Reserved */
437 #define TXS_OK		0x2000	/* Command was executed without error */
438 #define TXS_U		0x1000	/* This or previous frame encoutered underrun */
439 #define TXS_RES1	0x0FFF	/* Reserved (0) */
440 
441 #define TXC_EL		0x8000	/* End of List */
442 #define TXC_S		0x4000	/* Suspend after this CB */
443 #define TXC_I		0x2000	/* Interrupt after this CB */
444 #define TXC_CID_MASK	0x1F00	/* CNA Interrupt Delay */
445 #define TXC_RES		0x00E0	/* Reserved (0) */
446 #define TXC_NC		0x0010	/* No CRC and Source Address Insertion */
447 #define TXC_SF		0x0008	/* Not in Simplified Mode */
448 #define TXC_CMD		0x0007	/* Command */
449 
450 #define TXSZ_EOF	0x8000	/* End of Frame */
451 #define TXSZ_RES	0x4000	/* Reserved (0) */
452 #define TXSZ_COUNT	0x3FFF	/* Transmit Byte Count */
453 
454 #define TX_TBDA_NIL	0xFFFFFFFF	/* Null Pointer for TBD Array */
455 
456 #define TXTT_MIN	0x01	/* Minimum for Transmit Threshold */
457 #define TXTT_MAX	0xE0	/* Maximum for Transmit Threshold */
458 
459 /* Statistical Counters */
460 struct sc
461 {
462 	u32_t sc_tx_good;	/* Transmit Good Frames */
463 	u32_t sc_tx_maxcol;	/* Transmit Maximum Collisions errors */
464 	u32_t sc_tx_latecol;	/* Transmit Late Collisions errors */
465 	u32_t sc_tx_underrun;	/* Transmit Underrun errors */
466 	u32_t sc_tx_crs;	/* Transmit Lost Carrier Sense */
467 	u32_t sc_tx_defered;	/* Transmit Defered */
468 	u32_t sc_tx_scol;	/* Transmit Single Collision */
469 	u32_t sc_tx_mcol;	/* Transmit Multiple Collisions */
470 	u32_t sc_tx_totcol;	/* Transmit Total Collisions */
471 	u32_t sc_rx_good;	/* Receive Good Frames */
472 	u32_t sc_rx_crc;	/* Receive CRC errors */
473 	u32_t sc_rx_align;	/* Receive Alignment errors */
474 	u32_t sc_rx_resource;	/* Receive Resource errors */
475 	u32_t sc_rx_overrun;	/* Receive Overrun errors */
476 	u32_t sc_rx_cd;		/* Receive Collision Detect errors */
477 	u32_t sc_rx_short;	/* Receive Short Frame errors */
478 
479 				/* Short form ends here. The magic number will
480 				 * be stored in the next field.
481 				 */
482 
483 	u32_t sc_tx_fcp;	/* Transmit Flow Control Pause */
484 	u32_t sc_rx_fcp;	/* Receive Flow Control Pause */
485 	u32_t sc_rx_fcu;	/* Receive Flow Control Unsupported */
486 
487 				/* Longer form (82558 and later) ends here.
488 				 * The magic number will be stored in the
489 				 * next field.
490 				 */
491 
492 	u32_t sc_tx_tco;	/* Transmit TCO frames */
493 	u32_t sc_rx_tco;	/* Receive TCO frames */
494 	u32_t sc_magic;		/* Dump of counters completed */
495 };
496 
497 #define SCM_DSC		0x0000A005	/* Magic for SC_CU_DUMP_SC command */
498 #define SCM_DRSC	0x0000A007	/* Magic for SC_CU_DUMP_RSET_SC cmd */
499 
500 /* Receive Frame Descriptor (RFD) */
501 struct rfd
502 {
503 	u16_t rfd_status;
504 	u16_t rfd_command;
505 	u32_t rfd_linkaddr;
506 	u32_t rfd_reserved;
507 	u16_t rfd_res;
508 	u16_t rfd_size;
509 	u8_t rfd_buf[NDEV_ETH_PACKET_MAX_TAGGED];
510 };
511 
512 #define RFDS_C		0x8000	/* Frame Reception Completed */
513 #define RFDS_RES	0x4000	/* Reserved (0) */
514 #define RFDS_OK		0x2000	/* Frame received without any errors */
515 #define RFDS_RES1	0x1000	/* Reserved */
516 #define RFDS_CRCERR	0x0800	/* CRC error */
517 #define RFDS_ALIGNERR	0x0400	/* Alignment error */
518 #define RFDS_OUTOFBUF	0x0200	/* Ran out of buffer space (frame is frager
519 				 * than supplied buffer).
520 				 */
521 #define RFDS_DMAOVR	0x0100	/* DMA overrun failure */
522 #define RFDS_TOOSHORT	0x0080	/* Frame Too Short */
523 #define RFDS_RES2	0x0040	/* Reserved */
524 #define RFDS_TYPED	0x0020	/* Frame Is Typed (Type/Length field is 0 or
525 				 * >1500)
526 				 */
527 #define RFDS_RXERR	0x0010	/* Receive Error */
528 #define RFDS_RES3	0x0008	/* Reserved */
529 #define RFDS_NOAM	0x0004	/* No Address Match */
530 #define RFDS_NOAIAM	0x0002	/* No IA Address Match */
531 #define RFDS_RXCOL	0x0001	/* Collition Detected During Reception (82557
532 				 * and 82558 only)
533 				 */
534 #define RFDS_TCO	0x0001	/* TCO Packet (82559 and later) */
535 
536 #define RFDC_EL		0x8000	/* End of List */
537 #define RFDC_S		0x4000	/* Suspend */
538 #define RFDC_RES	0x3FE0	/* Reserved (0) */
539 #define RFDC_H		0x0010	/* Header RFD */
540 #define RFDC_SF		0x0008	/* (Not) Simplified Mode */
541 #define RFDC_RES1	0x0007	/* Reserved (0) */
542 
543 #define RFDR_EOF	0x8000	/* End of Frame (all data is in the buffer) */
544 #define RFDR_F		0x4000	/* Finished updating the count field */
545 #define RFDR_COUNT	0x3FFF	/* Actual Count */
546 
547 #define RFDSZ_RES	0xC000	/* Reserved (0) */
548 #define RFDSZ_SIZE	0x3FFF	/* Buffer Size */
549 
550 /* EEPROM commands */
551 #define EEPROM_READ_PREFIX	0x6	/* Read command */
552 #define EEPROM_PREFIX_LEN	3	/* Start bit and two command bits */
553 
554 /* EEPROM timing parameters */
555 #define EECS_DELAY	1	/* Keep EECS low for at least EECS_DELAY
556 				 * microseconds
557 				 */
558 #define EESK_PERIOD	4	/* A cycle of driving EESK high followed by
559 				 * driving EESK low should take at least
560 				 * EESK_PERIOD microseconds
561 				 */
562 
563 /* Special registers in the 82555 (and compatible) PHYs. Should be moved
564  * to a separate file if other drivers need this too.
565  */
566 #define MII_SCR		0x10	/* Status and Control Register */
567 #define	    MII_SCR_FC		0x8000	/* Flow Control */
568 #define	    MII_SCR_T4E		0x4000	/* Enable T4 unless auto-negotiation */
569 #define	    MII_SCR_CRSDC	0x2000	/* RX100 CRS Disconnect */
570 #define	    MII_SCR_RES		0x1000	/* Reserved */
571 #define	    MII_SCR_RCVSYNC	0x0800	/* RCV De-Serializer in sync */
572 #define	    MII_SCR_100DOWN	0x0400	/* 100Base-T Power Down */
573 #define	    MII_SCR_10DOWN	0x0200	/* 10Base-T Power Down */
574 #define	    MII_SCR_POLARITY	0x0100	/* 10Base-T Polarity */
575 #define	    MII_SCR_RES_1	0x00F8	/* Reserved */
576 #define	    MII_SCR_T4		0x0004	/* 100Base-T4 negotiated */
577 #define	    MII_SCR_100		0x0002	/* 100 Mbps negotiated */
578 #define	    MII_SCR_FD		0x0001	/* Full Duplex negotiated */
579 
580 /*
581  * $PchId: fxp.h,v 1.1 2004/11/23 14:34:03 philip Exp $
582  */
583 
584 #endif
585