xref: /illumos-gate/usr/src/uts/common/io/hme/hme_mac.h (revision 6a634c9dca3093f3922e4b7ab826d7bdf17bf78e)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 
25 #ifndef	HME_MAC_H
26 #define	HME_MAC_H
27 
28 /*
29  * HOST MEMORY DATA STRUCTURES
30  */
31 
32 /* The pointers to the Descriptor Ring base Addresses must be 2K-byte aligned */
33 
34 #define	HME_HMDALIGN	(2048)
35 
36 /*
37  * The transmit and receiver Descriptor Rings are organized as "wrap-around
38  * descriptors of programmable size.
39  */
40 #define	HME_TMDMAX	(64)	/* Transmit descriptor ring size */
41 #define	HME_RMDMAX	(64)	/* Receive descriptor ring size */
42 
43 /* Transmit descriptor structure */
44 
45 struct hme_tmd {
46 	uint_t	tmd_flags;	/* OWN, SOP, EOP, cksum ctl and bufize */
47 	uint_t	tmd_addr;	/* 8-bye aligned buffer address */
48 };
49 
50 /* fields in the tmd_flags */
51 
52 #define	HMETMD_BUFSIZE	(0x3fff << 0)	/* 0-13 : Tx Data buffer size */
53 #define	HMETMD_CSSTART	(0x3f << 14)	/* 14-19 : Checksum start offset */
54 #define	HMETMD_CSSTUFF	(0xff << 20)	/* 20-27 : Checksum stuff offset */
55 #define	HMETMD_CSENABL	(1 << 28)	/* 28 : Enable checksum computation */
56 #define	HMETMD_EOP	(1 << 29)	/* 29 : End Of Packet flag */
57 #define	HMETMD_SOP	(1 << 30)	/* 30 : Start Of Packet flag */
58 #define	HMETMD_OWN	(0x80000000)	/* 31 : Ownership flag */
59 					/* 0 - owned by software */
60 					/* 1 - owned by hardware */
61 
62 #define	HMETMD_CSSTART_MAX	0x3f	/* Maximum checksum start offset */
63 #define	HMETMD_CSSTUFF_MAX	0xff	/* Maximum checksum stuff offset */
64 #define	HMETMD_CSSTART_SHIFT 14	/* checksum start bit position */
65 #define	HMETMD_CSSTUFF_SHIFT 20	/* checksum stuff bit position */
66 
67 /*
68  *	Programming Notes:
69  *
70  *	1. If a packet occupies more than one descriptor, the software must
71  *	turn over the ownership of the descriptors to the hardware
72  *	"last-to-first", in order to avoid race conditions.
73  *
74  *	2. If a packet resides in more than one buffer, the Checksum_Enable,
75  *	Checksum_Stuff_Offset and Checksum_Start_Offset fields must have the
76  *	same values in all the descriptors that were allocated to the packet.
77  *
78  *	3. The hardware implementation relies on the fact that if a buffer
79  *	starts at an "odd" boundary, the DMA state machine can "rewind"
80  *	to the nearest burst boundary and execute a full DVMA burst Read.
81  *
82  *	There is no other alignment restriction for the transmit data buffer.
83  */
84 
85 /* Receive Descriptor structure */
86 
87 struct hme_rmd {
88 	uint_t	rmd_flags;	/* OWN, OVFLOW, buf/data size, cksum */
89 	uint_t	rmd_addr;	/* 8-byte aligned buffer address */
90 };
91 
92 /* fields in the rmd_flags */
93 
94 #define	HMERMD_CKSUM	(0xffff << 0)	/* 0-15 : checksum computed */
95 #define	HMERMD_BUFSIZE	(0x3fff << 16)	/* 16-29 : buffer/data size */
96 #define	HMERMD_OVFLOW	(1 << 30)	/* 30 : Rx buffer overflow */
97 #define	HMERMD_OWN	(0x80000000)	/* 31 : Ownership flag */
98 					/* 0 - owned by software */
99 					/* 1 - owned by hardware */
100 
101 #define	HMERMD_BUFSIZE_SHIFT 16	/* buffer/data size bit position */
102 
103 /* ************************************************************************* */
104 
105 /* Global Register set in SEB (Shared Ethernet Block) */
106 
107 struct hme_global {
108     uint_t reset;		/* Global Software Reset Command */
109     uint_t config;		/* Global Configuration Register */
110     uint_t reserved[62];
111     uint_t status;		/* Global Status Register */
112     uint_t intmask;		/* Global Interrupt Mask Register */
113 };
114 
115 
116 /*
117  * Global Software Reset Command Register - RW
118  * These bits become "self cleared" after the corresponding reset command
119  * has been executed. After a reset, the software must poll this register
120  * till both the bits are read as 0's.
121  */
122 
123 #define	HMEG_RESET_ETX	(1 << 0)	/* Reset ETX */
124 #define	HMEG_RESET_ERX	(1 << 1)	/* Reset ERX */
125 
126 #define	HMEG_RESET_GLOBAL HMEG_RESET_ETX | HMEG_RESET_ERX
127 
128 
129 /* Global Configuration Register - RW */
130 
131 #define	HMEG_CONFIG_BURSTSZ	(0x3 << 0)	/* sbus max burst size */
132 #define	HMEG_CONFIG_64BIT_XFER	(1 << 2)	/* Extended transfer mode */
133 #define	HMEG_CONFIG_PARITY	(1 << 3)	/* sbus parity enable */
134 #define	HMEG_CONFIG_RES1	(1 << 4)	/* reserved, should be 0 */
135 
136 #define	HMEG_CONFIG_BURST16	0x00	/* sbus max burst size 16 */
137 #define	HMEG_CONFIG_BURST32	0x01	/* sbus max burst size 32 */
138 #define	HMEG_CONFIG_BURST64	0x02	/* sbus max burst size 64 */
139 #define	HMEG_CONFIG_BURST_RES	0x03	/* sbus max burst size - reserved */
140 
141 #define	HMEG_CONFIG_64BIT_SHIFT	2
142 /*
143  * Global Status Register - R-AC
144  *
145  * All the bits in the Global Status Register are automatically cleared when
146  * read with the exception of bit 23. The MIF status bit will be cleared after
147  * the MIF Status Register is read.
148  */
149 
150 
151 #define	HMEG_STATUS_FRAME_RCVD	(1 << 0)	/* from RX_MAC to RxFIFO */
152 #define	HMEG_STATUS_RXF_CNT_EXP	(1 << 1)	/* Rx_frame_counter expired */
153 #define	HMEG_STATUS_ALN_CNT_EXP	(1 << 2)	/* Alignment_Error_cntr exp */
154 #define	HMEG_STATUS_CRC_CNT_EXP	(1 << 3)	/* CRC_Error_counter expired */
155 #define	HMEG_STATUS_LEN_CNT_EXP	(1 << 4)	/* Length_Error_counter exp */
156 #define	HMEG_STATUS_RXFIFO_OVFL	(1 << 5)	/* RxFIFO_Overflow in RX_MAC */
157 #define	HMEG_STATUS_RCV_CNT_EXP	(1 << 6)	/* Code_Violation_counter exp */
158 #define	HMEG_STATUS_SQE_TST_ERR	(1 << 7)	/* SQE Test error in XIF */
159 
160 #define	HMEG_STATUS_FRAME_SENT	(1 << 8)	/* Frame sent from TX_MAC */
161 #define	HMEG_STATUS_TXFIFO_UNDR	(1 << 9)	/* TxFIFO Underrun in TX_MAC */
162 #define	HMEG_STATUS_MXPKTSZ_ERR	(1 << 10)	/* Maximum_Packet_Size error */
163 #define	HMEG_STATUS_NRMCOLC_EXP	(1 << 11)	/* Normal_collision_cntr exp */
164 #define	HMEG_STATUS_EXCOLC_EXP	(1 << 12)	/* Excessive_coll_cntr exp */
165 #define	HMEG_STATUS_LATCOLC_EXP	(1 << 13)	/* Late_Collision_cntr exp */
166 #define	HMEG_STATUS_FSTCOLC_EXP	(1 << 14)	/* First_Coll_cntr expired */
167 #define	HMEG_STATUS_DEFTIMR_EXP	(1 << 15)	/* Defer_Timer expired */
168 
169 #define	HMEG_STATUS_RINT	(1 << 16)	/* from RxFIFO to host memory */
170 #define	HMEG_STATUS_RX_DROP	(1 << 17)	/* No free Rx descriptors */
171 #define	HMEG_STATUS_RX_ERR_ACK	(1 << 18)	/* Error Ack in Rx DMA cycle */
172 #define	HMEG_STATUS_RX_LATE_ERR	(1 << 19)	/* Late Error in Rx DMA cycle */
173 #define	HMEG_STATUS_RX_PAR_ERR	(1 << 20)	/* Parity error in Rx DMA */
174 #define	HMEG_STATUS_RX_TAG_ERR	(1 << 21)	/* No two consecutiv tag bits */
175 #define	HMEG_STATUS_EOP_ERR	(1 << 22)	/* EOP not set in Tx desc */
176 #define	HMEG_STATUS_MIF_INTR	(1 << 23)	/* MIF interrupt */
177 
178 #define	HMEG_STATUS_TINT	(1 << 24)	/* from host mem to TxFIFO */
179 #define	HMEG_STATUS_TX_ALL	(1 << 25)	/* TxFIFO empty */
180 #define	HMEG_STATUS_TX_ERR_ACK	(1 << 26)	/* Error Ack in Tx DMA cycle */
181 #define	HMEG_STATUS_TX_LATE_ERR	(1 << 27)	/* Late error in Tx DMA cycle */
182 #define	HMEG_STATUS_TX_PAR_ERR	(1 << 28)	/* Parity error in Tx DMA */
183 #define	HMEG_STATUS_TX_TAG_ERR	(1 << 29)	/* No two consecutiv tag bits */
184 #define	HMEG_STATUS_SLV_ERR_ACK	(1 << 30)	/* Error Ack in PIO cycle */
185 #define	HMEG_STATUS_SLV_PAR_ERR	(0x80000000)	/* Parity error in PIO write */
186 
187 #define	HMEG_STATUS_FATAL_ERR	 0xfc7c0000	/* all fatal errors */
188 #define	HMEG_STATUS_NONFATAL_ERR 0x0002fefc	/* all non-fatal errors */
189 #define	HMEG_STATUS_NORMAL_INT	 0x01810000	/* normal interrupts */
190 
191 #define	HMEG_STATUS_INTR	 0xfefffefc 	/* All interesting interrupts */
192 
193 /*
194  * Global Interrupt Mask register
195  *
196  * There is one-to-one correspondence between the bits in this register and
197  * the Global Status register.
198  *
199  * The MIF interrupt [bit 23] is not maskable here. It should be masked at the
200  * source of the interrupt in the MIF.
201  *
202  * Default value of the Global Interrupt Mask register is 0xFF7FFFFF.
203  */
204 
205 #define	HMEG_MASK_FRAME_RCVD	(1 << 0)	/* from RX_MAC to RxFIFO */
206 #define	HMEG_MASK_RXF_CNT_EXP	(1 << 1)	/* Rx_frame_counter expired */
207 #define	HMEG_MASK_ALN_CNT_EXP	(1 << 2)	/* Alignment_Error_cntr exp */
208 #define	HMEG_MASK_CRC_CNT_EXP	(1 << 3)	/* CRC_Error_counter expired */
209 #define	HMEG_MASK_LEN_CNT_EXP	(1 << 4)	/* Length_Error_counter exp */
210 #define	HMEG_MASK_RXFIFO_OVFL	(1 << 5)	/* RxFIFO_Overflow in RX_MAC */
211 #define	HMEG_MASK_RCV_CNT_EXP	(1 << 6)	/* Code_Violation_counter exp */
212 #define	HMEG_MASK_SQE_TST_ERR	(1 << 7)	/* SQE Test error in XIF */
213 
214 #define	HMEG_MASK_FRAME_SENT	(1 << 8)	/* Frame sent from TX_MAC */
215 #define	HMEG_MASK_TXFIFO_UNDR	(1 << 9)	/* TxFIFO Underrun in TX_MAC */
216 #define	HMEG_MASK_MXPKTSZ_ERR	(1 << 10)	/* Maximum_Packet_Size error */
217 #define	HMEG_MASK_NRMCOLC_EXP	(1 << 11)	/* Normal_collision_cntr exp */
218 #define	HMEG_MASK_EXECOLC_EXP	(1 << 12)	/* Excessive_coll_cntr exp */
219 #define	HMEG_MASK_LATCOLC_EXP	(1 << 13)	/* Late_Collision_cntr exp */
220 #define	HMEG_MASK_FSTCOLC_EXP	(1 << 14)	/* First_Coll_cntr expired */
221 #define	HMEG_MASK_DEFTIMR_EXP	(1 << 15)	/* Defer_Timer expired */
222 
223 #define	HMEG_MASK_RINT		(1 << 16)	/* from RxFIFO to host memory */
224 #define	HMEG_MASK_RX_DROP	(1 << 17)	/* No free Rx descriptors */
225 #define	HMEG_MASK_RX_ERR_ACK	(1 << 18)	/* Error Ack in Rx DMA cycle */
226 #define	HMEG_MASK_RX_LATE_ERR	(1 << 19)	/* Late Error in Rx DMA cycle */
227 #define	HMEG_MASK_RX_PAR_ERR	(1 << 20)	/* Parity error in Rx DMA */
228 #define	HMEG_MASK_RX_TAG_ERR	(1 << 21)	/* No two consecutiv tag bits */
229 #define	HMEG_MASK_EOP_ERR	(1 << 22)	/* EOP not set in Tx desc */
230 #define	HMEG_MASK_MIF_INTR	(1 << 23)	/* MIF interrupt */
231 
232 #define	HMEG_MASK_TINT		(1 << 24)	/* from host mem to TxFIFO */
233 #define	HMEG_MASK_TX_ALL	(1 << 25)	/* TxFIFO empty */
234 #define	HMEG_MASK_TX_ERR_ACK	(1 << 26)	/* Error Ack in Tx DMA cycle */
235 #define	HMEG_MASK_TX_LATE_ERR	(1 << 27)	/* Late error in Tx DMA cycle */
236 #define	HMEG_MASK_TX_PAR_ERR	(1 << 28)	/* Parity error in Tx DMA */
237 #define	HMEG_MASK_TX_TAG_ERR	(1 << 29)	/* No two consecutiv tag bits */
238 #define	HMEG_MASK_SLV_ERR_ACK	(1 << 30)	/* Error Ack in PIO cycle */
239 #define	HMEG_MASK_SLV_PAR_ERR	(0x80000000)	/* Parity error in PIO write */
240 
241 #define	HMEG_MASK_INTR		(~HMEG_STATUS_INTR)
242 						/* uninteresting interrupts */
243 
244 /*
245  *	Interrupts which are not interesting are:
246  *	HMEG_MASK_FRAME_SENT
247  *	HMEG_MASK_RXF_CNT_EXP
248  *	HMEG_MASK_FRAME_RCVD
249  */
250 
251 /* ************************************************************************* */
252 
253 /* ETX Register set */
254 
255 struct hme_etx {
256     uint_t txpend;		/* Transmit Pending Command */
257     uint_t config;		/* ETX Configuration Register */
258     uint_t txring;		/* Transmit Descriptor Ring Pointer */
259     uint_t txbuf_base;		/* Transmit Data Buffer Base Address */
260     uint_t txbuf_disp;		/* Transmit Data Buffer Displacement */
261     uint_t txfifo_wr_ptr;	/* TxFIFO Write Pointer */
262     uint_t txfifo_sdwr_ptr;	/* TxFIFO Shadow Write Pointer */
263     uint_t txfifo_rd_ptr;	/* TxFIFO Read pointer */
264     uint_t txfifo_sdrd_ptr;	/* TxFIFO Shadow Read pointer */
265     uint_t txfifo_pkt_cnt;	/* TxFIFO Packet Counter */
266     uint_t state_mach;		/* ETX State Machine Register */
267     uint_t txring_size;		/* Descriptor Ring Size */
268     uint_t txbuf_ptr;		/* Transmit Data Buffer Pointer */
269 };
270 
271 /*
272  * ETX Transmit Pending Command Register - RW
273  * This 1-bit command must be issued by the software for every packet that the
274  * driver posts to the hardware.
275  * This bit becomes "self-cleared" after the command is executed.
276  */
277 
278 #define	HMET_TXPEND_TDMD	(1 << 0)	/* wake up Tx DMA engine */
279 
280 /*
281  * ETX Configuration Register
282  * If the desire is to buffer an entire standard Ethernet frame before its
283  * transmission is enabled, the Tx-FIFO-Threshold field has to be proframmed
284  * to "0x1ff".
285  * The default value for the register is 0x3fe.
286  * Bit 10 is used to modify the functionality of the Tx_All interrupt.
287  * If it is 0, Tx_All interrupt is generated after processing the last
288  * transmit descriptor with the OWN bit set. This only implies that the
289  * data has been copied to the FIFO.
290  * If it is 1, Tx_All interrupt is generated only after the entire
291  * Transmit FIFO has been drained.
292  */
293 
294 #define	HMET_CONFIG_TXDMA_EN	(1 << 0)	/* Enable Tx DMA */
295 #define	HMET_CONFIG_TXFIFOTH	(0x1ff << 1)	/* 1-9 : TX FIFO Threshold */
296 #define	HMET_CONFIG_DRAIN_INT	(1 << 10)	/* TX_all_int modifier */
297 
298 /*
299  * Transmit Descriptor Pointer
300  *
301  * This 29-bit register points to the next descriptor in the ring. The 21 most
302  * significant bits are used as the base address for the desriptor ring,
303  * and the 8 least significant bits are used as a displacement for the current
304  * descriptor.
305  *
306  * This register should be initialized to a 2KByte-aligned value after power-on
307  * or Software Reset.
308  *
309  */
310 
311 /*
312  * ETX TX ring size register
313  * This is a 4-bit register to determine the no. of descriptor entries in the
314  * TX-ring. The number of entries can vary from 16 through 256 in increments of
315  * 16.
316  */
317 
318 #define	HMET_RINGSZ_SHIFT	4
319 
320 /* ************************************************************************* */
321 
322 /* ERX Register Set */
323 
324 struct hme_erx {
325     uint_t config;		/* ERX Configuration Register */
326     uint_t rxring;		/* Receive Descriptor Ring Pointer */
327     uint_t rxbuf_ptr;		/* Receive Data Buffer Pointer */
328     uint_t rxfifo_wr_ptr;	/* RxFIFO Write Pointer */
329     uint_t rxfifo_sdwr_ptr;	/* RxFIFO Shadow Write Pointer */
330     uint_t rxfifo_rd_ptr;	/* RxFIFO Read pointer */
331     uint_t rxfifo_pkt_cnt;	/* RxFIFO Packet Counter */
332     uint_t state_mach;		/* ERX State Machine Register */
333 };
334 
335 /*
336  * ERX Configuration Register - RW
337  * This 23-bit register determines the ERX-specific parameters that control the
338  * operation of the receive DMA channel.
339  */
340 
341 #define	HMER_CONFIG_RXDMA_EN	(1 << 0)	/* 0 : Enable Rx DMA */
342 #define	HMER_CONFIG_RES1	(0x3 << 1)	/* 1,2 : reserverd */
343 #define	HMER_CONFIG_FBOFFSET	(0x7 << 3)	/* 3-5 : First Byte Offset */
344 #define	HMER_CONFIG_RES2	(0x7 << 6)	/* 6-8 : reserverd */
345 #define	HMER_CONFIG_RXRINGSZ	(0x3 << 9)	/* 9,10 : RX desc. ring size */
346 #define	HMER_CONFIG_RES3	(0x1f << 11)	/* 11-15 : reserverd */
347 #define	HMER_CONFIG_RX_CSSTART	(0x7f << 16)	/* 16-22 : cksum start offset */
348 
349 #define	HMER_CONFIG_RXRINGSZ32	(0x0 << 9)	/* Rx descr. ring size 32 */
350 #define	HMER_CONFIG_RXRINGSZ64	(0x1 << 9)	/* Rx descr. ring size 64 */
351 #define	HMER_CONFIG_RXRINGSZ128	(0x2 << 9)	/* Rx descr. ring size 128 */
352 #define	HMER_CONFIG_RXRINGSZ256	(0x3 << 9)	/* Rx descr. ring size 256 */
353 
354 #define	HMER_CONFIG_FBO_SHIFT	3
355 #define	HMER_RXRINGSZ_SHIFT 	9
356 #define	HMER_RX_CSSTART_SHIFT	16
357 
358 /*
359  * Receive Descriptor Pointer
360  *
361  * This 29-bit register points to the next descriptor in the ring. The 21 most
362  * significant bits are used as the base address for the desriptor ring,
363  * and the 8 least significant bits are used as a displacement for the current
364  * descriptor.
365  *
366  * This register should be initialized to a 2KByte-aligned value after power-on
367  * or Software Reset.
368  *
369  */
370 
371 /* ************************************************************************* */
372 
373 
374 
375 /*
376  * Declarations and definitions specific to the BigMAC functional block.
377  *
378  * The BigMAC block will provide the MAC functons for 10 or 100 Mbps CSMA/CD
379  * protocol based interface.
380  *
381  */
382 
383 /*
384  * BigMAC Register Set.
385  * BigMAC addresses map on a SBus word boundry. So all registers are
386  * declared for a size of 32 bits. Registers that use fewer than 32
387  * bits will return 0 in the bits not used.
388  */
389 struct	hme_bmac {
390 	uint_t	xifc;		/* XIF Configuration register [9-0] (RW) */
391 	uint_t	pad1[129];	/* XXX unused */
392 	uint_t	txrst;		/* tx software reset (RW) */
393 	uint_t	txcfg;		/* tx configuration register [9-0] (RW) */
394 	uint_t	ipg1;		/* Inter Packet Gap 1 [7-0] (RW) */
395 	uint_t	ipg2;		/* Inter Packet Gap 2 [7-0] (RW) */
396 	uint_t	alimit;		/* attempt limit register [7-0] (RW) */
397 	uint_t	slot;		/* slot time register [7-0] (RW) */
398 	uint_t	palen;		/* preamble length register [7-0] (RW) */
399 	uint_t	papat;		/* preamble pattern register [7-0] (RW) */
400 	uint_t	txsfd;		/* tx start frame delimiter [7-0] (RW) */
401 	uint_t	jam;		/* jam size register [7-0] (RW) */
402 	uint_t	txmax;		/* tx maximum packet size [12-0] (RW) */
403 	uint_t	txmin;		/* tx minimum frame size [7-0] (RW) */
404 	uint_t	parg;		/* peak attempt count [7-0] (RW) */
405 	uint_t	dcnt;		/* defer timer counter [15-0] (RW) */
406 	uint_t	nccnt;		/* normal collision counter [15-0] (RW) */
407 	uint_t	fccnt;		/* first succesful coll. counter [15-0] (RW) */
408 	uint_t	excnt;		/* excess collision counter [7-0] (RW) */
409 	uint_t	ltcnt;		/* late collision counter [7-0] (RW) */
410 	uint_t	rseed;		/* random number seed [9-0] (RW) */
411 	uint_t	txsm;		/* tx state machine register [8-0] (R) */
412 	uint_t	pad2[44];	/* XXX Unused */
413 	uint_t	rxrst;		/* rx software reset register (RW) */
414 	uint_t	rxcfg;		/* rx configuration register [12-0] (RW) */
415 	uint_t	rxmax;		/* rx maximum packet size [12-0] (RW) */
416 	uint_t	rxmin;		/* rx minimum frame size [7-0] (RW) */
417 	uint_t	madd2;		/* mac address register 2 [47-32] (RW) */
418 	uint_t	madd1;		/* mac address register 1 [31-16] (RW) */
419 	uint_t	madd0;		/* mac address register 0 [15-0] (RW) */
420 	uint_t	frcnt;		/* receive frame count [15-0] (RW) */
421 	uint_t	lecnt;		/* rx giant length error count [7-0] (RW) */
422 	uint_t	aecnt;		/* rx alignment error count [7-0] (RW) */
423 	uint_t	fecnt;		/* receive crc error count [7-0] (RW) */
424 	uint_t	rxsm;		/* rx state machine register (R) */
425 	uint_t	rxcv;		/* rx code voilation register (R) */
426 	uchar_t	pad3[4];
427 	uint_t	hash3;		/* hash table 3 [63-48] (RW) */
428 	uint_t	hash2;		/* hash table 2 [47-32] (RW) */
429 	uint_t	hash1;		/* hash table 1 [31-16] (RW) */
430 	uint_t	hash0;		/* hash table 0 [15-0] (RW) */
431 	uint_t	afr2;		/* addr filter register 0_2 [15-0] (RW) */
432 	uint_t	afr1;		/* addr filter register 0_1 [15-0] (RW) */
433 	uint_t	afr0;		/* addr filter register 0_0 [15-0] (RW) */
434 	uint_t	afmr;		/* addr filter mask reg 0 [15-0] (RW) */
435 };
436 
437 /*
438  * BigMAC Register Bit Masks.
439  */
440 
441 /* XIF Configuration Register */
442 
443 #define	BMAC_XIFC_ENAB		(1 << 0)	/* Enable XIF output drivers */
444 #define	BMAC_XIFC_XIFLPBK	(1 << 1)	/* Enable XIF Loopback mode */
445 #define	BMAC_XIFC_MIILPBK	(1 << 2)	/* Enable MII Loopback mode */
446 #define	BMAC_XIFC_MIIBUFDIS	(1 << 3)	/* Disable MII Recv Buffers */
447 
448 /* IN FEPS 2.1 or earlier rev */
449 #define	BMAC_XIFC_SQETSTENB	(1 << 4)	/* Enable SQE Test */
450 #define	BMAC_XIFC_SQETSTWIN	(0x1f << 5)	/* SQE Test time window */
451 
452 /* IN FEPS 2.2 or later rev */
453 #define	BMAC_XIFC_LANCE_ENAB	(1 << 4)	/* Enable  LANCE mode */
454 #define	BMAC_XIFC_LANCE_IPG0	(0x1f << 5)	/* IPG0 for LANCE mode */
455 
456 #define	BMAC_XIFC_IPG0_SHIFT	5
457 
458 /*
459  * TX_MAC Software Reset Command Register
460  * This bit is set to 1 when a PIO write is done. This bit becomes self-cleared.
461  * after the command has been executed.
462  */
463 
464 #define	BMAC_TX_RESET		(1 << 0)	/* TX_MAC Reset Command */
465 
466 /*
467  * TX_MAC Configuration Register
468  * To Ensure proper operation of the TX_MAC, the TX_MAC_Enable bit must always
469  * be cleared to 0 and a delay imposed before a PIO write to any of the other
470  * bits in the TX_MAC Configuration register or any of the MAC parameter
471  * registers is done.
472  *
473  * The amount of delay required depends on the time required to transmit a max.
474  * size frame.
475  */
476 
477 #define	BMACTXRSTDELAY		(125)		/* 125 us wait period */
478 
479 #define	BMAC_TXCFG_ENAB		(1 << 0)	/* tx enable */
480 #define	BMAC_TXCFG_RES1		(0xf << 1)	/* 1-4 : reserved */
481 #define	BMAC_TXCFG_SLOW		(1 << 5)	/* carrier detect before tx */
482 #define	BMAC_TXCFG_IGCOLL	(1 << 6)	/* tx ignore collision */
483 #define	BMAC_TXCFG_NFCS		(1 << 7)	/* no FCS will be generated */
484 #define	BMAC_TXCFG_NBKOFF	(1 << 8)	/* No Backoff */
485 #define	BMAC_TXCFG_FDX		(1 << 9)	/* Full Duplex */
486 #define	BMAC_TXCFG_NGU		(1 << 10)	/* Never Give Up */
487 
488 /*
489  * RX_MAC Configuration Register
490  * A delay of 3.2 us should be allowed after clearing Rx_MAC_Enable or
491  * Hash_Filter_enable or Address_Filter_Enable bits.
492  */
493 
494 #define	BMACRXRSTDELAY		(40)		/* 3.2 us wait period */
495 
496 #define	BMAC_RXCFG_ENAB		(1 << 0)	/* rx enable */
497 #define	BMAC_RXCFG_RES1		(0xf << 1)	/* 1-4 : reserved */
498 #define	BMAC_RXCFG_STRIP	(1 << 5)	/* rx strip pad bytes */
499 #define	BMAC_RXCFG_PROMIS	(1 << 6)	/* rx enable promiscous */
500 #define	BMAC_RXCFG_ERR		(1 << 7)	/* rx disable error checking */
501 #define	BMAC_RXCFG_CRC		(1 << 8)	/* rx disable CRC stripping */
502 #define	BMAC_RXCFG_MYOWN	(1 << 9)	/* rx filter own packets */
503 #define	BMAC_RXCFG_GRPROM	(1 << 10)	/* rx promiscuous group mode */
504 #define	BMAC_RXCFG_HASH		(1 << 11)	/* rx enable hash filter */
505 #define	BMAC_RXCFG_ADDR		(1 << 12)	/* rx enable address filter */
506 
507 
508 
509 /* ************************************************************************* */
510 
511 /*
512  * MII Transceiver Interface
513  *
514  * The Management Interface (MIF) allows the host to program and collect status
515  * from two transceivers connected to the MII. MIF supports three modes of
516  * operation:
517  *	1. Bit-Bang Mode
518  *	   This mode is imlemented using three 1-bit registers: data, clock,
519  *	   and output_enable.
520  *
521  *	2. Frame Mode
522  *	   This mode is supported using one 32-bit register: Frame register.
523  *	   The software loads the Frame Register with avalid instaruction
524  *	   ("frame"), and polls the Valid Bit for completion.
525  *
526  *	3. Polling Mode
527  *	   The Polling mechanism is used for detecting a status change in the
528  *	   transceiver. When this mode is enabled, the MIF will continuously
529  *	   poll a specified transceiver register and generate a maskable
530  *	   interrupt when a status change is detected. This mode of operation
531  *	   can only be used when the MIF is in the "Frame mode".
532  *
533  */
534 
535 struct hme_mif {
536 	uint_t mif_bbclk;	/* MIF Bit Bang Clock */
537 	uint_t mif_bbdata;	/* MIF Bit Bang Data */
538 	uint_t mif_bbopenb;	/* MIF Bit Bang Output Enable */
539 	uint_t mif_frame;	/* MIF Frame - ctl and data */
540 	uint_t mif_cfg;		/* MIF Configuration */
541 	uint_t mif_imask;	/* MIF Interrupt mask */
542 	uint_t mif_bsts;	/* MIF Basic/Status register */
543 	uint_t mif_fsm;		/* MIF State machine register */
544 };
545 
546 /* mif_bbc - Bit Bang Clock register */
547 #define	HME_MIF_BBCLK	(1 << 0);	/* Bit Babg Clock */
548 
549 #define	HME_BBCLK_LOW 0
550 #define	HME_BBCLK_HIGH 1
551 
552 /* mif_bbdata - bit Bang Data register */
553 #define	HME_MIF_BBDATA	(1 << 0);	/* Bit Bang Data */
554 
555 /* mif_bbopenb - Bit Bang oOutput Enable register */
556 #define	HME_MIF_BBOPENB	(1 << 0);	/* Bit Bang output Enable */
557 
558 /*
559  * Management Frame Structure:
560  * <IDLE> <ST><OP><PHYAD><REGAD><TA>	 <DATA>		   <IDLE>
561  * READ:  <01><10><AAAAA><RRRRR><Z0><DDDDDDDDDDDDDDDD>
562  * WRITE: <01><01><AAAAA><RRRRR><10><DDDDDDDDDDDDDDDD>
563  */
564 
565 /* mif_frame - MIF control and data register */
566 
567 #define	HME_MIF_FRDATA	(0xffff << 0)	/* 0-15 : data bits */
568 #define	HME_MIF_FRTA0	(0x1 << 16)	/* 16 : TA bit, 1 for completion */
569 #define	HME_MIF_FRTA1	(0x1 << 17)	/* 16-17 : TA bits */
570 #define	HME_MIF_FRREGAD	(0x1f << 18)	/* 18-22 : register address bits */
571 #define	HME_MIF_FRPHYAD	(0x1f << 23)	/* 23-27 : PHY ad, should be 0 */
572 #define	HME_MIF_FROP	(0x3 << 28)	/* 28-29 : Operation - Write/Read */
573 #define	HME_MIF_FRST	(0xc0000000)	/* 30-31 : START bits */
574 
575 #define	HME_MIF_FRREGAD_SHIFT	18
576 #define	HME_MIF_FRPHYAD_SHIFT	23
577 #define	HME_MIF_FRREAD		0x60020000
578 #define	HME_MIF_FRWRITE		0x50020000
579 
580 /* maximum delay for MIF Register Read/Write operation */
581 #define	HMEMAXMIFDELAY	(100)
582 
583 /* maximum delay for Transceiver Reset */
584 #define	HME_PHYRST_MAXDELAY	(500)
585 
586 /* mif_cfg - MIF Configuration Register */
587 
588 #define	HME_MIF_CFGPS	(1 << 0)	/* PHY Select */
589 #define	HME_MIF_CFGPE	(1 << 1)	/* Poll Enable */
590 #define	HME_MIF_CFGBB	(1 << 2)	/* Bit Bang Enable */
591 #define	HME_MIF_CFGPR	(0x1f << 3)	/* Poll Register address */
592 #define	HME_MIF_CFGM0	(1 << 8)	/* MDIO_0 Data / MDIO_0 attached */
593 #define	HME_MIF_CFGM1	(1 << 9)	/* MDIO_1 Data / MDIO_1 attached */
594 #define	HME_MIF_CFGPD	(0x1f << 10)	/* Poll Device PHY address */
595 
596 #define	HME_MIF_CFGPR_SHIFT	3
597 #define	HME_MIF_CFGPD_SHIFT	10
598 #define	HME_MIF_POLL_DELAY	200
599 
600 /*
601  * MDIO_0 corresponds to the On Board Transceiver.
602  * MDIO_1 corresponds to the External Transceiver.
603  * The PHYAD for both is 0.
604  */
605 
606 #define	HME_INTERNAL_PHYAD	1	/* PHY address for int. transceiver */
607 #define	HME_EXTERNAL_PHYAD	0	/* PHY address for ext. transceiver */
608 
609 
610 /* mif_imask - MIF Interrupt Mask Register */
611 /*
612  * This register is bit-to-bit same as Basic/Status Register
613  */
614 #define	HME_MIF_INTMASK	(0xffff << 0)	/* 0-15 : Interrupt mask */
615 
616 /* mif_bassts - MIF Basic / Status register */
617 /*
618  * The Basic portion of this register indicates the last value of the register
619  * read indicated in the POLL REG field of the Configuration Register.
620  * The Status portion indicates bit(s) that have changed.
621  * The MIF Mask register is corresponding to this register in terms of the
622  * bit(s) that need to be masked for generating interrupt on the MIF Interrupt
623  * Bit of the Global Status Rgister.
624  */
625 
626 #define	HME_MIF_STATUS	(0xffff << 0)	/* 0-15 : Status */
627 #define	HME_MIF_BASIC	(0xffff << 16)	/* 16-31 : Basic register */
628 
629 /* mif_fsm - MIF State Machine register */
630 
631 #define	HME_MIF_FSM	(0x3ff << 0)	/* 0-9 : MIF state */
632 
633 /* ************************************************************************ */
634 
635 
636 /*
637  * Definition for the time required to wait after a software
638  * reset has been issued.
639  */
640 #define	HMEMAXRSTDELAY	(200)
641 #define	HMEPERIOD	(20)	/* period to wait */
642 #define	HMEWAITPERIOD	HMEPERIOD
643 
644 #define	HMEDELAY(c, n) \
645 	{ \
646 		register int N = n / HMEWAITPERIOD; \
647 		while (--N > 0) { \
648 			if (c) \
649 				break; \
650 			drv_usecwait(HMEWAITPERIOD); \
651 		} \
652 	}
653 
654 #endif	/* HME_MAC_H */
655