1 /*
2  * Copyright (C) Freescale Semicondutor, Inc. 2006-2009. All rights reserved.
3  *
4  * Author: Shlomi Gridish <gridish@freescale.com>
5  *
6  * Description:
7  * Internal header file for UCC Gigabit Ethernet unit routines.
8  *
9  * Changelog:
10  * Jun 28, 2006 Li Yang <LeoLi@freescale.com>
11  * - Rearrange code and style fixes
12  *
13  * This program is free software; you can redistribute  it and/or modify it
14  * under  the terms of  the GNU General  Public License as published by the
15  * Free Software Foundation;  either version 2 of the  License, or (at your
16  * option) any later version.
17  */
18 #ifndef __UCC_GETH_H__
19 #define __UCC_GETH_H__
20 
21 #include <linux/kernel.h>
22 #include <linux/list.h>
23 #include <linux/if_ether.h>
24 
25 #include <asm/immap_qe.h>
26 #include <asm/qe.h>
27 
28 #include <asm/ucc.h>
29 #include <asm/ucc_fast.h>
30 
31 #define DRV_DESC "QE UCC Gigabit Ethernet Controller"
32 #define DRV_NAME "ucc_geth"
33 #define DRV_VERSION "1.1"
34 
35 #define NUM_TX_QUEUES                   8
36 #define NUM_RX_QUEUES                   8
37 #define NUM_BDS_IN_PREFETCHED_BDS       4
38 #define TX_IP_OFFSET_ENTRY_MAX          8
39 #define NUM_OF_PADDRS                   4
40 #define ENET_INIT_PARAM_MAX_ENTRIES_RX  9
41 #define ENET_INIT_PARAM_MAX_ENTRIES_TX  8
42 
43 struct ucc_geth {
44 	struct ucc_fast uccf;
45 	u8 res0[0x100 - sizeof(struct ucc_fast)];
46 
47 	u32 maccfg1;		/* mac configuration reg. 1 */
48 	u32 maccfg2;		/* mac configuration reg. 2 */
49 	u32 ipgifg;		/* interframe gap reg.  */
50 	u32 hafdup;		/* half-duplex reg.  */
51 	u8 res1[0x10];
52 	u8 miimng[0x18];	/* MII management structure moved to _mii.h */
53 	u32 ifctl;		/* interface control reg */
54 	u32 ifstat;		/* interface statux reg */
55 	u32 macstnaddr1;	/* mac station address part 1 reg */
56 	u32 macstnaddr2;	/* mac station address part 2 reg */
57 	u8 res2[0x8];
58 	u32 uempr;		/* UCC Ethernet Mac parameter reg */
59 	u32 utbipar;		/* UCC tbi address reg */
60 	u16 uescr;		/* UCC Ethernet statistics control reg */
61 	u8 res3[0x180 - 0x15A];
62 	u32 tx64;		/* Total number of frames (including bad
63 				   frames) transmitted that were exactly of the
64 				   minimal length (64 for un tagged, 68 for
65 				   tagged, or with length exactly equal to the
66 				   parameter MINLength */
67 	u32 tx127;		/* Total number of frames (including bad
68 				   frames) transmitted that were between
69 				   MINLength (Including FCS length==4) and 127
70 				   octets */
71 	u32 tx255;		/* Total number of frames (including bad
72 				   frames) transmitted that were between 128
73 				   (Including FCS length==4) and 255 octets */
74 	u32 rx64;		/* Total number of frames received including
75 				   bad frames that were exactly of the mninimal
76 				   length (64 bytes) */
77 	u32 rx127;		/* Total number of frames (including bad
78 				   frames) received that were between MINLength
79 				   (Including FCS length==4) and 127 octets */
80 	u32 rx255;		/* Total number of frames (including bad
81 				   frames) received that were between 128
82 				   (Including FCS length==4) and 255 octets */
83 	u32 txok;		/* Total number of octets residing in frames
84 				   that where involved in successful
85 				   transmission */
86 	u16 txcf;		/* Total number of PAUSE control frames
87 				   transmitted by this MAC */
88 	u8 res4[0x2];
89 	u32 tmca;		/* Total number of frames that were transmitted
90 				   successfully with the group address bit set
91 				   that are not broadcast frames */
92 	u32 tbca;		/* Total number of frames transmitted
93 				   successfully that had destination address
94 				   field equal to the broadcast address */
95 	u32 rxfok;		/* Total number of frames received OK */
96 	u32 rxbok;		/* Total number of octets received OK */
97 	u32 rbyt;		/* Total number of octets received including
98 				   octets in bad frames. Must be implemented in
99 				   HW because it includes octets in frames that
100 				   never even reach the UCC */
101 	u32 rmca;		/* Total number of frames that were received
102 				   successfully with the group address bit set
103 				   that are not broadcast frames */
104 	u32 rbca;		/* Total number of frames received successfully
105 				   that had destination address equal to the
106 				   broadcast address */
107 	u32 scar;		/* Statistics carry register */
108 	u32 scam;		/* Statistics caryy mask register */
109 	u8 res5[0x200 - 0x1c4];
110 } __packed;
111 
112 /* UCC GETH TEMODR Register */
113 #define TEMODER_TX_RMON_STATISTICS_ENABLE       0x0100	/* enable Tx statistics
114 							 */
115 #define TEMODER_SCHEDULER_ENABLE                0x2000	/* enable scheduler */
116 #define TEMODER_IP_CHECKSUM_GENERATE            0x0400	/* generate IPv4
117 							   checksums */
118 #define TEMODER_PERFORMANCE_OPTIMIZATION_MODE1  0x0200	/* enable performance
119 							   optimization
120 							   enhancement (mode1) */
121 #define TEMODER_RMON_STATISTICS                 0x0100	/* enable tx statistics
122 							 */
123 #define TEMODER_NUM_OF_QUEUES_SHIFT             (15-15)	/* Number of queues <<
124 							   shift */
125 
126 /* UCC GETH TEMODR Register */
127 #define REMODER_RX_RMON_STATISTICS_ENABLE       0x00001000	/* enable Rx
128 								   statistics */
129 #define REMODER_RX_EXTENDED_FEATURES            0x80000000	/* enable
130 								   extended
131 								   features */
132 #define REMODER_VLAN_OPERATION_TAGGED_SHIFT     (31-9 )	/* vlan operation
133 							   tagged << shift */
134 #define REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT (31-10)	/* vlan operation non
135 							   tagged << shift */
136 #define REMODER_RX_QOS_MODE_SHIFT               (31-15)	/* rx QoS mode << shift
137 							 */
138 #define REMODER_RMON_STATISTICS                 0x00001000	/* enable rx
139 								   statistics */
140 #define REMODER_RX_EXTENDED_FILTERING           0x00000800	/* extended
141 								   filtering
142 								   vs.
143 								   mpc82xx-like
144 								   filtering */
145 #define REMODER_NUM_OF_QUEUES_SHIFT             (31-23)	/* Number of queues <<
146 							   shift */
147 #define REMODER_DYNAMIC_MAX_FRAME_LENGTH        0x00000008	/* enable
148 								   dynamic max
149 								   frame length
150 								 */
151 #define REMODER_DYNAMIC_MIN_FRAME_LENGTH        0x00000004	/* enable
152 								   dynamic min
153 								   frame length
154 								 */
155 #define REMODER_IP_CHECKSUM_CHECK               0x00000002	/* check IPv4
156 								   checksums */
157 #define REMODER_IP_ADDRESS_ALIGNMENT            0x00000001	/* align ip
158 								   address to
159 								   4-byte
160 								   boundary */
161 
162 /* UCC GETH Event Register */
163 #define UCCE_TXB   (UCC_GETH_UCCE_TXB7 | UCC_GETH_UCCE_TXB6 | \
164 		    UCC_GETH_UCCE_TXB5 | UCC_GETH_UCCE_TXB4 | \
165 		    UCC_GETH_UCCE_TXB3 | UCC_GETH_UCCE_TXB2 | \
166 		    UCC_GETH_UCCE_TXB1 | UCC_GETH_UCCE_TXB0)
167 
168 #define UCCE_RXB   (UCC_GETH_UCCE_RXB7 | UCC_GETH_UCCE_RXB6 | \
169 		    UCC_GETH_UCCE_RXB5 | UCC_GETH_UCCE_RXB4 | \
170 		    UCC_GETH_UCCE_RXB3 | UCC_GETH_UCCE_RXB2 | \
171 		    UCC_GETH_UCCE_RXB1 | UCC_GETH_UCCE_RXB0)
172 
173 #define UCCE_RXF   (UCC_GETH_UCCE_RXF7 | UCC_GETH_UCCE_RXF6 | \
174 		    UCC_GETH_UCCE_RXF5 | UCC_GETH_UCCE_RXF4 | \
175 		    UCC_GETH_UCCE_RXF3 | UCC_GETH_UCCE_RXF2 | \
176 		    UCC_GETH_UCCE_RXF1 | UCC_GETH_UCCE_RXF0)
177 
178 #define UCCE_OTHER (UCC_GETH_UCCE_SCAR | UCC_GETH_UCCE_GRA | \
179 		    UCC_GETH_UCCE_CBPR | UCC_GETH_UCCE_BSY | \
180 		    UCC_GETH_UCCE_RXC  | UCC_GETH_UCCE_TXC | UCC_GETH_UCCE_TXE)
181 
182 #define UCCE_RX_EVENTS  (UCCE_RXF | UCC_GETH_UCCE_BSY)
183 #define UCCE_TX_EVENTS	(UCCE_TXB | UCC_GETH_UCCE_TXE)
184 
185 /* TBI defines */
186 #define	ENET_TBI_MII_CR		0x00	/* Control */
187 #define	ENET_TBI_MII_SR		0x01	/* Status */
188 #define	ENET_TBI_MII_ANA	0x04	/* AN advertisement */
189 #define	ENET_TBI_MII_ANLPBPA	0x05	/* AN link partner base page ability */
190 #define	ENET_TBI_MII_ANEX	0x06	/* AN expansion */
191 #define	ENET_TBI_MII_ANNPT	0x07	/* AN next page transmit */
192 #define	ENET_TBI_MII_ANLPANP	0x08	/* AN link partner ability next page */
193 #define	ENET_TBI_MII_EXST	0x0F	/* Extended status */
194 #define	ENET_TBI_MII_JD		0x10	/* Jitter diagnostics */
195 #define	ENET_TBI_MII_TBICON	0x11	/* TBI control */
196 
197 /* TBI MDIO register bit fields*/
198 #define TBISR_LSTATUS          0x0004
199 #define TBICON_CLK_SELECT       0x0020
200 #define TBIANA_ASYMMETRIC_PAUSE 0x0100
201 #define TBIANA_SYMMETRIC_PAUSE  0x0080
202 #define TBIANA_HALF_DUPLEX      0x0040
203 #define TBIANA_FULL_DUPLEX      0x0020
204 #define TBICR_PHY_RESET         0x8000
205 #define TBICR_ANEG_ENABLE       0x1000
206 #define TBICR_RESTART_ANEG      0x0200
207 #define TBICR_FULL_DUPLEX       0x0100
208 #define TBICR_SPEED1_SET        0x0040
209 
210 #define TBIANA_SETTINGS ( \
211 		TBIANA_ASYMMETRIC_PAUSE \
212 		| TBIANA_SYMMETRIC_PAUSE \
213 		| TBIANA_FULL_DUPLEX \
214 		)
215 #define TBICR_SETTINGS ( \
216 		TBICR_PHY_RESET \
217 		| TBICR_ANEG_ENABLE \
218 		| TBICR_FULL_DUPLEX \
219 		| TBICR_SPEED1_SET \
220 		)
221 
222 /* UCC GETH MACCFG1 (MAC Configuration 1 Register) */
223 #define MACCFG1_FLOW_RX                         0x00000020	/* Flow Control
224 								   Rx */
225 #define MACCFG1_FLOW_TX                         0x00000010	/* Flow Control
226 								   Tx */
227 #define MACCFG1_ENABLE_SYNCHED_RX               0x00000008	/* Rx Enable
228 								   synchronized
229 								   to Rx stream
230 								 */
231 #define MACCFG1_ENABLE_RX                       0x00000004	/* Enable Rx */
232 #define MACCFG1_ENABLE_SYNCHED_TX               0x00000002	/* Tx Enable
233 								   synchronized
234 								   to Tx stream
235 								 */
236 #define MACCFG1_ENABLE_TX                       0x00000001	/* Enable Tx */
237 
238 /* UCC GETH MACCFG2 (MAC Configuration 2 Register) */
239 #define MACCFG2_PREL_SHIFT                      (31 - 19)	/* Preamble
240 								   Length <<
241 								   shift */
242 #define MACCFG2_PREL_MASK                       0x0000f000	/* Preamble
243 								   Length mask */
244 #define MACCFG2_SRP                             0x00000080	/* Soft Receive
245 								   Preamble */
246 #define MACCFG2_STP                             0x00000040	/* Soft
247 								   Transmit
248 								   Preamble */
249 #define MACCFG2_RESERVED_1                      0x00000020	/* Reserved -
250 								   must be set
251 								   to 1 */
252 #define MACCFG2_LC                              0x00000010	/* Length Check
253 								 */
254 #define MACCFG2_MPE                             0x00000008	/* Magic packet
255 								   detect */
256 #define MACCFG2_FDX                             0x00000001	/* Full Duplex */
257 #define MACCFG2_FDX_MASK                        0x00000001	/* Full Duplex
258 								   mask */
259 #define MACCFG2_PAD_CRC                         0x00000004
260 #define MACCFG2_CRC_EN                          0x00000002
261 #define MACCFG2_PAD_AND_CRC_MODE_NONE           0x00000000	/* Neither
262 								   Padding
263 								   short frames
264 								   nor CRC */
265 #define MACCFG2_PAD_AND_CRC_MODE_CRC_ONLY       0x00000002	/* Append CRC
266 								   only */
267 #define MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC    0x00000004
268 #define MACCFG2_INTERFACE_MODE_NIBBLE           0x00000100	/* nibble mode
269 								   (MII/RMII/RGMII
270 								   10/100bps) */
271 #define MACCFG2_INTERFACE_MODE_BYTE             0x00000200	/* byte mode
272 								   (GMII/TBI/RTB/RGMII
273 								   1000bps ) */
274 #define MACCFG2_INTERFACE_MODE_MASK             0x00000300	/* mask
275 								   covering all
276 								   relevant
277 								   bits */
278 
279 /* UCC GETH IPGIFG (Inter-frame Gap / Inter-Frame Gap Register) */
280 #define IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT (31 -  7)	/* Non
281 								   back-to-back
282 								   inter frame
283 								   gap part 1.
284 								   << shift */
285 #define IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT (31 - 15)	/* Non
286 								   back-to-back
287 								   inter frame
288 								   gap part 2.
289 								   << shift */
290 #define IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT    (31 - 23)	/* Mimimum IFG
291 								   Enforcement
292 								   << shift */
293 #define IPGIFG_BACK_TO_BACK_IFG_SHIFT           (31 - 31)	/* back-to-back
294 								   inter frame
295 								   gap << shift
296 								 */
297 #define IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX   127	/* Non back-to-back
298 							   inter frame gap part
299 							   1. max val */
300 #define IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX   127	/* Non back-to-back
301 							   inter frame gap part
302 							   2. max val */
303 #define IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX      255	/* Mimimum IFG
304 							   Enforcement max val */
305 #define IPGIFG_BACK_TO_BACK_IFG_MAX             127	/* back-to-back inter
306 							   frame gap max val */
307 #define IPGIFG_NBTB_CS_IPG_MASK                 0x7F000000
308 #define IPGIFG_NBTB_IPG_MASK                    0x007F0000
309 #define IPGIFG_MIN_IFG_MASK                     0x0000FF00
310 #define IPGIFG_BTB_IPG_MASK                     0x0000007F
311 
312 /* UCC GETH HAFDUP (Half Duplex Register) */
313 #define HALFDUP_ALT_BEB_TRUNCATION_SHIFT        (31 - 11)	/* Alternate
314 								   Binary
315 								   Exponential
316 								   Backoff
317 								   Truncation
318 								   << shift */
319 #define HALFDUP_ALT_BEB_TRUNCATION_MAX          0xf	/* Alternate Binary
320 							   Exponential Backoff
321 							   Truncation max val */
322 #define HALFDUP_ALT_BEB                         0x00080000	/* Alternate
323 								   Binary
324 								   Exponential
325 								   Backoff */
326 #define HALFDUP_BACK_PRESSURE_NO_BACKOFF        0x00040000	/* Back
327 								   pressure no
328 								   backoff */
329 #define HALFDUP_NO_BACKOFF                      0x00020000	/* No Backoff */
330 #define HALFDUP_EXCESSIVE_DEFER                 0x00010000	/* Excessive
331 								   Defer */
332 #define HALFDUP_MAX_RETRANSMISSION_SHIFT        (31 - 19)	/* Maximum
333 								   Retransmission
334 								   << shift */
335 #define HALFDUP_MAX_RETRANSMISSION_MAX          0xf	/* Maximum
336 							   Retransmission max
337 							   val */
338 #define HALFDUP_COLLISION_WINDOW_SHIFT          (31 - 31)	/* Collision
339 								   Window <<
340 								   shift */
341 #define HALFDUP_COLLISION_WINDOW_MAX            0x3f	/* Collision Window max
342 							   val */
343 #define HALFDUP_ALT_BEB_TR_MASK                 0x00F00000
344 #define HALFDUP_RETRANS_MASK                    0x0000F000
345 #define HALFDUP_COL_WINDOW_MASK                 0x0000003F
346 
347 /* UCC GETH UCCS (Ethernet Status Register) */
348 #define UCCS_BPR                                0x02	/* Back pressure (in
349 							   half duplex mode) */
350 #define UCCS_PAU                                0x02	/* Pause state (in full
351 							   duplex mode) */
352 #define UCCS_MPD                                0x01	/* Magic Packet
353 							   Detected */
354 
355 /* UCC GETH IFSTAT (Interface Status Register) */
356 #define IFSTAT_EXCESS_DEFER                     0x00000200	/* Excessive
357 								   transmission
358 								   defer */
359 
360 /* UCC GETH MACSTNADDR1 (Station Address Part 1 Register) */
361 #define MACSTNADDR1_OCTET_6_SHIFT               (31 -  7)	/* Station
362 								   address 6th
363 								   octet <<
364 								   shift */
365 #define MACSTNADDR1_OCTET_5_SHIFT               (31 - 15)	/* Station
366 								   address 5th
367 								   octet <<
368 								   shift */
369 #define MACSTNADDR1_OCTET_4_SHIFT               (31 - 23)	/* Station
370 								   address 4th
371 								   octet <<
372 								   shift */
373 #define MACSTNADDR1_OCTET_3_SHIFT               (31 - 31)	/* Station
374 								   address 3rd
375 								   octet <<
376 								   shift */
377 
378 /* UCC GETH MACSTNADDR2 (Station Address Part 2 Register) */
379 #define MACSTNADDR2_OCTET_2_SHIFT               (31 -  7)	/* Station
380 								   address 2nd
381 								   octet <<
382 								   shift */
383 #define MACSTNADDR2_OCTET_1_SHIFT               (31 - 15)	/* Station
384 								   address 1st
385 								   octet <<
386 								   shift */
387 
388 /* UCC GETH UEMPR (Ethernet Mac Parameter Register) */
389 #define UEMPR_PAUSE_TIME_VALUE_SHIFT            (31 - 15)	/* Pause time
390 								   value <<
391 								   shift */
392 #define UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT   (31 - 31)	/* Extended
393 								   pause time
394 								   value <<
395 								   shift */
396 
397 /* UCC GETH UTBIPAR (Ten Bit Interface Physical Address Register) */
398 #define UTBIPAR_PHY_ADDRESS_SHIFT               (31 - 31)	/* Phy address
399 								   << shift */
400 #define UTBIPAR_PHY_ADDRESS_MASK                0x0000001f	/* Phy address
401 								   mask */
402 
403 /* UCC GETH UESCR (Ethernet Statistics Control Register) */
404 #define UESCR_AUTOZ                             0x8000	/* Automatically zero
405 							   addressed
406 							   statistical counter
407 							   values */
408 #define UESCR_CLRCNT                            0x4000	/* Clear all statistics
409 							   counters */
410 #define UESCR_MAXCOV_SHIFT                      (15 -  7)	/* Max
411 								   Coalescing
412 								   Value <<
413 								   shift */
414 #define UESCR_SCOV_SHIFT                        (15 - 15)	/* Status
415 								   Coalescing
416 								   Value <<
417 								   shift */
418 
419 /* UCC GETH UDSR (Data Synchronization Register) */
420 #define UDSR_MAGIC                              0x067E
421 
422 struct ucc_geth_thread_data_tx {
423 	u8 res0[104];
424 } __packed;
425 
426 struct ucc_geth_thread_data_rx {
427 	u8 res0[40];
428 } __packed;
429 
430 /* Send Queue Queue-Descriptor */
431 struct ucc_geth_send_queue_qd {
432 	u32 bd_ring_base;	/* pointer to BD ring base address */
433 	u8 res0[0x8];
434 	u32 last_bd_completed_address;/* initialize to last entry in BD ring */
435 	u8 res1[0x30];
436 } __packed;
437 
438 struct ucc_geth_send_queue_mem_region {
439 	struct ucc_geth_send_queue_qd sqqd[NUM_TX_QUEUES];
440 } __packed;
441 
442 struct ucc_geth_thread_tx_pram {
443 	u8 res0[64];
444 } __packed;
445 
446 struct ucc_geth_thread_rx_pram {
447 	u8 res0[128];
448 } __packed;
449 
450 #define THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING        64
451 #define THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8      64
452 #define THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16     96
453 
454 struct ucc_geth_scheduler {
455 	u16 cpucount0;		/* CPU packet counter */
456 	u16 cpucount1;		/* CPU packet counter */
457 	u16 cecount0;		/* QE packet counter */
458 	u16 cecount1;		/* QE packet counter */
459 	u16 cpucount2;		/* CPU packet counter */
460 	u16 cpucount3;		/* CPU packet counter */
461 	u16 cecount2;		/* QE packet counter */
462 	u16 cecount3;		/* QE packet counter */
463 	u16 cpucount4;		/* CPU packet counter */
464 	u16 cpucount5;		/* CPU packet counter */
465 	u16 cecount4;		/* QE packet counter */
466 	u16 cecount5;		/* QE packet counter */
467 	u16 cpucount6;		/* CPU packet counter */
468 	u16 cpucount7;		/* CPU packet counter */
469 	u16 cecount6;		/* QE packet counter */
470 	u16 cecount7;		/* QE packet counter */
471 	u32 weightstatus[NUM_TX_QUEUES];	/* accumulated weight factor */
472 	u32 rtsrshadow;		/* temporary variable handled by QE */
473 	u32 time;		/* temporary variable handled by QE */
474 	u32 ttl;		/* temporary variable handled by QE */
475 	u32 mblinterval;	/* max burst length interval */
476 	u16 nortsrbytetime;	/* normalized value of byte time in tsr units */
477 	u8 fracsiz;		/* radix 2 log value of denom. of
478 				   NorTSRByteTime */
479 	u8 res0[1];
480 	u8 strictpriorityq;	/* Strict Priority Mask register */
481 	u8 txasap;		/* Transmit ASAP register */
482 	u8 extrabw;		/* Extra BandWidth register */
483 	u8 oldwfqmask;		/* temporary variable handled by QE */
484 	u8 weightfactor[NUM_TX_QUEUES];
485 				      /**< weight factor for queues   */
486 	u32 minw;		/* temporary variable handled by QE */
487 	u8 res1[0x70 - 0x64];
488 } __packed;
489 
490 struct ucc_geth_tx_firmware_statistics_pram {
491 	u32 sicoltx;		/* single collision */
492 	u32 mulcoltx;		/* multiple collision */
493 	u32 latecoltxfr;	/* late collision */
494 	u32 frabortduecol;	/* frames aborted due to transmit collision */
495 	u32 frlostinmactxer;	/* frames lost due to internal MAC error
496 				   transmission that are not counted on any
497 				   other counter */
498 	u32 carriersenseertx;	/* carrier sense error */
499 	u32 frtxok;		/* frames transmitted OK */
500 	u32 txfrexcessivedefer;	/* frames with defferal time greater than
501 				   specified threshold */
502 	u32 txpkts256;		/* total packets (including bad) between 256
503 				   and 511 octets */
504 	u32 txpkts512;		/* total packets (including bad) between 512
505 				   and 1023 octets */
506 	u32 txpkts1024;		/* total packets (including bad) between 1024
507 				   and 1518 octets */
508 	u32 txpktsjumbo;	/* total packets (including bad) between 1024
509 				   and MAXLength octets */
510 } __packed;
511 
512 struct ucc_geth_rx_firmware_statistics_pram {
513 	u32 frrxfcser;		/* frames with crc error */
514 	u32 fraligner;		/* frames with alignment error */
515 	u32 inrangelenrxer;	/* in range length error */
516 	u32 outrangelenrxer;	/* out of range length error */
517 	u32 frtoolong;		/* frame too long */
518 	u32 runt;		/* runt */
519 	u32 verylongevent;	/* very long event */
520 	u32 symbolerror;	/* symbol error */
521 	u32 dropbsy;		/* drop because of BD not ready */
522 	u8 res0[0x8];
523 	u32 mismatchdrop;	/* drop because of MAC filtering (e.g. address
524 				   or type mismatch) */
525 	u32 underpkts;		/* total frames less than 64 octets */
526 	u32 pkts256;		/* total frames (including bad) between 256 and
527 				   511 octets */
528 	u32 pkts512;		/* total frames (including bad) between 512 and
529 				   1023 octets */
530 	u32 pkts1024;		/* total frames (including bad) between 1024
531 				   and 1518 octets */
532 	u32 pktsjumbo;		/* total frames (including bad) between 1024
533 				   and MAXLength octets */
534 	u32 frlossinmacer;	/* frames lost because of internal MAC error
535 				   that is not counted in any other counter */
536 	u32 pausefr;		/* pause frames */
537 	u8 res1[0x4];
538 	u32 removevlan;		/* total frames that had their VLAN tag removed
539 				 */
540 	u32 replacevlan;	/* total frames that had their VLAN tag
541 				   replaced */
542 	u32 insertvlan;		/* total frames that had their VLAN tag
543 				   inserted */
544 } __packed;
545 
546 struct ucc_geth_rx_interrupt_coalescing_entry {
547 	u32 interruptcoalescingmaxvalue;	/* interrupt coalescing max
548 						   value */
549 	u32 interruptcoalescingcounter;	/* interrupt coalescing counter,
550 					   initialize to
551 					   interruptcoalescingmaxvalue */
552 } __packed;
553 
554 struct ucc_geth_rx_interrupt_coalescing_table {
555 	struct ucc_geth_rx_interrupt_coalescing_entry coalescingentry[NUM_RX_QUEUES];
556 				       /**< interrupt coalescing entry */
557 } __packed;
558 
559 struct ucc_geth_rx_prefetched_bds {
560 	struct qe_bd bd[NUM_BDS_IN_PREFETCHED_BDS];	/* prefetched bd */
561 } __packed;
562 
563 struct ucc_geth_rx_bd_queues_entry {
564 	u32 bdbaseptr;		/* BD base pointer */
565 	u32 bdptr;		/* BD pointer */
566 	u32 externalbdbaseptr;	/* external BD base pointer */
567 	u32 externalbdptr;	/* external BD pointer */
568 } __packed;
569 
570 struct ucc_geth_tx_global_pram {
571 	u16 temoder;
572 	u8 res0[0x38 - 0x02];
573 	u32 sqptr;		/* a base pointer to send queue memory region */
574 	u32 schedulerbasepointer;	/* a base pointer to scheduler memory
575 					   region */
576 	u32 txrmonbaseptr;	/* base pointer to Tx RMON statistics counter */
577 	u32 tstate;		/* tx internal state. High byte contains
578 				   function code */
579 	u8 iphoffset[TX_IP_OFFSET_ENTRY_MAX];
580 	u32 vtagtable[0x8];	/* 8 4-byte VLAN tags */
581 	u32 tqptr;		/* a base pointer to the Tx Queues Memory
582 				   Region */
583 	u8 res2[0x80 - 0x74];
584 } __packed;
585 
586 /* structure representing Extended Filtering Global Parameters in PRAM */
587 struct ucc_geth_exf_global_pram {
588 	u32 l2pcdptr;		/* individual address filter, high */
589 	u8 res0[0x10 - 0x04];
590 } __packed;
591 
592 struct ucc_geth_rx_global_pram {
593 	u32 remoder;		/* ethernet mode reg. */
594 	u32 rqptr;		/* base pointer to the Rx Queues Memory Region*/
595 	u32 res0[0x1];
596 	u8 res1[0x20 - 0xC];
597 	u16 typeorlen;		/* cutoff point less than which, type/len field
598 				   is considered length */
599 	u8 res2[0x1];
600 	u8 rxgstpack;		/* acknowledgement on GRACEFUL STOP RX command*/
601 	u32 rxrmonbaseptr;	/* base pointer to Rx RMON statistics counter */
602 	u8 res3[0x30 - 0x28];
603 	u32 intcoalescingptr;	/* Interrupt coalescing table pointer */
604 	u8 res4[0x36 - 0x34];
605 	u8 rstate;		/* rx internal state. High byte contains
606 				   function code */
607 	u8 res5[0x46 - 0x37];
608 	u16 mrblr;		/* max receive buffer length reg. */
609 	u32 rbdqptr;		/* base pointer to RxBD parameter table
610 				   description */
611 	u16 mflr;		/* max frame length reg. */
612 	u16 minflr;		/* min frame length reg. */
613 	u16 maxd1;		/* max dma1 length reg. */
614 	u16 maxd2;		/* max dma2 length reg. */
615 	u32 ecamptr;		/* external CAM address */
616 	u32 l2qt;		/* VLAN priority mapping table. */
617 	u32 l3qt[0x8];		/* IP priority mapping table. */
618 	u16 vlantype;		/* vlan type */
619 	u16 vlantci;		/* default vlan tci */
620 	u8 addressfiltering[64];	/* address filtering data structure */
621 	u32 exfGlobalParam;	/* base address for extended filtering global
622 				   parameters */
623 	u8 res6[0x100 - 0xC4];	/* Initialize to zero */
624 } __packed;
625 
626 #define GRACEFUL_STOP_ACKNOWLEDGE_RX            0x01
627 
628 /* structure representing InitEnet command */
629 struct ucc_geth_init_pram {
630 	u8 resinit1;
631 	u8 resinit2;
632 	u8 resinit3;
633 	u8 resinit4;
634 	u16 resinit5;
635 	u8 res1[0x1];
636 	u8 largestexternallookupkeysize;
637 	u32 rgftgfrxglobal;
638 	u32 rxthread[ENET_INIT_PARAM_MAX_ENTRIES_RX];	/* rx threads */
639 	u8 res2[0x38 - 0x30];
640 	u32 txglobal;		/* tx global */
641 	u32 txthread[ENET_INIT_PARAM_MAX_ENTRIES_TX];	/* tx threads */
642 	u8 res3[0x1];
643 } __packed;
644 
645 #define ENET_INIT_PARAM_RGF_SHIFT               (32 - 4)
646 #define ENET_INIT_PARAM_TGF_SHIFT               (32 - 8)
647 
648 #define ENET_INIT_PARAM_RISC_MASK               0x0000003f
649 #define ENET_INIT_PARAM_PTR_MASK                0x00ffffc0
650 #define ENET_INIT_PARAM_SNUM_MASK               0xff000000
651 #define ENET_INIT_PARAM_SNUM_SHIFT              24
652 
653 #define ENET_INIT_PARAM_MAGIC_RES_INIT1         0x06
654 #define ENET_INIT_PARAM_MAGIC_RES_INIT2         0x30
655 #define ENET_INIT_PARAM_MAGIC_RES_INIT3         0xff
656 #define ENET_INIT_PARAM_MAGIC_RES_INIT4         0x00
657 #define ENET_INIT_PARAM_MAGIC_RES_INIT5         0x0400
658 
659 /* structure representing 82xx Address Filtering Enet Address in PRAM */
660 struct ucc_geth_82xx_enet_address {
661 	u8 res1[0x2];
662 	u16 h;			/* address (MSB) */
663 	u16 m;			/* address */
664 	u16 l;			/* address (LSB) */
665 } __packed;
666 
667 /* structure representing 82xx Address Filtering PRAM */
668 struct ucc_geth_82xx_address_filtering_pram {
669 	u32 iaddr_h;		/* individual address filter, high */
670 	u32 iaddr_l;		/* individual address filter, low */
671 	u32 gaddr_h;		/* group address filter, high */
672 	u32 gaddr_l;		/* group address filter, low */
673 	struct ucc_geth_82xx_enet_address __iomem taddr;
674 	struct ucc_geth_82xx_enet_address __iomem paddr[NUM_OF_PADDRS];
675 	u8 res0[0x40 - 0x38];
676 } __packed;
677 
678 /* GETH Tx firmware statistics structure, used when calling
679    UCC_GETH_GetStatistics. */
680 struct ucc_geth_tx_firmware_statistics {
681 	u32 sicoltx;		/* single collision */
682 	u32 mulcoltx;		/* multiple collision */
683 	u32 latecoltxfr;	/* late collision */
684 	u32 frabortduecol;	/* frames aborted due to transmit collision */
685 	u32 frlostinmactxer;	/* frames lost due to internal MAC error
686 				   transmission that are not counted on any
687 				   other counter */
688 	u32 carriersenseertx;	/* carrier sense error */
689 	u32 frtxok;		/* frames transmitted OK */
690 	u32 txfrexcessivedefer;	/* frames with defferal time greater than
691 				   specified threshold */
692 	u32 txpkts256;		/* total packets (including bad) between 256
693 				   and 511 octets */
694 	u32 txpkts512;		/* total packets (including bad) between 512
695 				   and 1023 octets */
696 	u32 txpkts1024;		/* total packets (including bad) between 1024
697 				   and 1518 octets */
698 	u32 txpktsjumbo;	/* total packets (including bad) between 1024
699 				   and MAXLength octets */
700 } __packed;
701 
702 /* GETH Rx firmware statistics structure, used when calling
703    UCC_GETH_GetStatistics. */
704 struct ucc_geth_rx_firmware_statistics {
705 	u32 frrxfcser;		/* frames with crc error */
706 	u32 fraligner;		/* frames with alignment error */
707 	u32 inrangelenrxer;	/* in range length error */
708 	u32 outrangelenrxer;	/* out of range length error */
709 	u32 frtoolong;		/* frame too long */
710 	u32 runt;		/* runt */
711 	u32 verylongevent;	/* very long event */
712 	u32 symbolerror;	/* symbol error */
713 	u32 dropbsy;		/* drop because of BD not ready */
714 	u8 res0[0x8];
715 	u32 mismatchdrop;	/* drop because of MAC filtering (e.g. address
716 				   or type mismatch) */
717 	u32 underpkts;		/* total frames less than 64 octets */
718 	u32 pkts256;		/* total frames (including bad) between 256 and
719 				   511 octets */
720 	u32 pkts512;		/* total frames (including bad) between 512 and
721 				   1023 octets */
722 	u32 pkts1024;		/* total frames (including bad) between 1024
723 				   and 1518 octets */
724 	u32 pktsjumbo;		/* total frames (including bad) between 1024
725 				   and MAXLength octets */
726 	u32 frlossinmacer;	/* frames lost because of internal MAC error
727 				   that is not counted in any other counter */
728 	u32 pausefr;		/* pause frames */
729 	u8 res1[0x4];
730 	u32 removevlan;		/* total frames that had their VLAN tag removed
731 				 */
732 	u32 replacevlan;	/* total frames that had their VLAN tag
733 				   replaced */
734 	u32 insertvlan;		/* total frames that had their VLAN tag
735 				   inserted */
736 } __packed;
737 
738 /* GETH hardware statistics structure, used when calling
739    UCC_GETH_GetStatistics. */
740 struct ucc_geth_hardware_statistics {
741 	u32 tx64;		/* Total number of frames (including bad
742 				   frames) transmitted that were exactly of the
743 				   minimal length (64 for un tagged, 68 for
744 				   tagged, or with length exactly equal to the
745 				   parameter MINLength */
746 	u32 tx127;		/* Total number of frames (including bad
747 				   frames) transmitted that were between
748 				   MINLength (Including FCS length==4) and 127
749 				   octets */
750 	u32 tx255;		/* Total number of frames (including bad
751 				   frames) transmitted that were between 128
752 				   (Including FCS length==4) and 255 octets */
753 	u32 rx64;		/* Total number of frames received including
754 				   bad frames that were exactly of the mninimal
755 				   length (64 bytes) */
756 	u32 rx127;		/* Total number of frames (including bad
757 				   frames) received that were between MINLength
758 				   (Including FCS length==4) and 127 octets */
759 	u32 rx255;		/* Total number of frames (including bad
760 				   frames) received that were between 128
761 				   (Including FCS length==4) and 255 octets */
762 	u32 txok;		/* Total number of octets residing in frames
763 				   that where involved in successful
764 				   transmission */
765 	u16 txcf;		/* Total number of PAUSE control frames
766 				   transmitted by this MAC */
767 	u32 tmca;		/* Total number of frames that were transmitted
768 				   successfully with the group address bit set
769 				   that are not broadcast frames */
770 	u32 tbca;		/* Total number of frames transmitted
771 				   successfully that had destination address
772 				   field equal to the broadcast address */
773 	u32 rxfok;		/* Total number of frames received OK */
774 	u32 rxbok;		/* Total number of octets received OK */
775 	u32 rbyt;		/* Total number of octets received including
776 				   octets in bad frames. Must be implemented in
777 				   HW because it includes octets in frames that
778 				   never even reach the UCC */
779 	u32 rmca;		/* Total number of frames that were received
780 				   successfully with the group address bit set
781 				   that are not broadcast frames */
782 	u32 rbca;		/* Total number of frames received successfully
783 				   that had destination address equal to the
784 				   broadcast address */
785 } __packed;
786 
787 /* UCC GETH Tx errors returned via TxConf callback */
788 #define TX_ERRORS_DEF      0x0200
789 #define TX_ERRORS_EXDEF    0x0100
790 #define TX_ERRORS_LC       0x0080
791 #define TX_ERRORS_RL       0x0040
792 #define TX_ERRORS_RC_MASK  0x003C
793 #define TX_ERRORS_RC_SHIFT 2
794 #define TX_ERRORS_UN       0x0002
795 #define TX_ERRORS_CSL      0x0001
796 
797 /* UCC GETH Rx errors returned via RxStore callback */
798 #define RX_ERRORS_CMR      0x0200
799 #define RX_ERRORS_M        0x0100
800 #define RX_ERRORS_BC       0x0080
801 #define RX_ERRORS_MC       0x0040
802 
803 /* Transmit BD. These are in addition to values defined in uccf. */
804 #define T_VID      0x003c0000	/* insert VLAN id index mask. */
805 #define T_DEF      (((u32) TX_ERRORS_DEF     ) << 16)
806 #define T_EXDEF    (((u32) TX_ERRORS_EXDEF   ) << 16)
807 #define T_LC       (((u32) TX_ERRORS_LC      ) << 16)
808 #define T_RL       (((u32) TX_ERRORS_RL      ) << 16)
809 #define T_RC_MASK  (((u32) TX_ERRORS_RC_MASK ) << 16)
810 #define T_UN       (((u32) TX_ERRORS_UN      ) << 16)
811 #define T_CSL      (((u32) TX_ERRORS_CSL     ) << 16)
812 #define T_ERRORS_REPORT  (T_DEF | T_EXDEF | T_LC | T_RL | T_RC_MASK \
813 		| T_UN | T_CSL)	/* transmit errors to report */
814 
815 /* Receive BD. These are in addition to values defined in uccf. */
816 #define R_LG    0x00200000	/* Frame length violation.  */
817 #define R_NO    0x00100000	/* Non-octet aligned frame.  */
818 #define R_SH    0x00080000	/* Short frame.  */
819 #define R_CR    0x00040000	/* CRC error.  */
820 #define R_OV    0x00020000	/* Overrun.  */
821 #define R_IPCH  0x00010000	/* IP checksum check failed. */
822 #define R_CMR   (((u32) RX_ERRORS_CMR  ) << 16)
823 #define R_M     (((u32) RX_ERRORS_M    ) << 16)
824 #define R_BC    (((u32) RX_ERRORS_BC   ) << 16)
825 #define R_MC    (((u32) RX_ERRORS_MC   ) << 16)
826 #define R_ERRORS_REPORT (R_CMR | R_M | R_BC | R_MC)	/* receive errors to
827 							   report */
828 #define R_ERRORS_FATAL  (R_LG  | R_NO | R_SH | R_CR | \
829 		R_OV | R_IPCH)	/* receive errors to discard */
830 
831 /* Alignments */
832 #define UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT	256
833 #define UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT       128
834 #define UCC_GETH_THREAD_RX_PRAM_ALIGNMENT       128
835 #define UCC_GETH_THREAD_TX_PRAM_ALIGNMENT       64
836 #define UCC_GETH_THREAD_DATA_ALIGNMENT          256	/* spec gives values
837 							   based on num of
838 							   threads, but always
839 							   using the maximum is
840 							   easier */
841 #define UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT	32
842 #define UCC_GETH_SCHEDULER_ALIGNMENT		8	/* This is a guess */
843 #define UCC_GETH_TX_STATISTICS_ALIGNMENT	4	/* This is a guess */
844 #define UCC_GETH_RX_STATISTICS_ALIGNMENT	4	/* This is a guess */
845 #define UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT	64
846 #define UCC_GETH_RX_BD_QUEUES_ALIGNMENT		8	/* This is a guess */
847 #define UCC_GETH_RX_PREFETCHED_BDS_ALIGNMENT	128	/* This is a guess */
848 #define UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT 8	/* This
849 									   is a
850 									   guess
851 									 */
852 #define UCC_GETH_RX_BD_RING_ALIGNMENT		32
853 #define UCC_GETH_TX_BD_RING_ALIGNMENT		32
854 #define UCC_GETH_MRBLR_ALIGNMENT		128
855 #define UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT	4
856 #define UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT	32
857 #define UCC_GETH_RX_DATA_BUF_ALIGNMENT		64
858 
859 #define UCC_GETH_TAD_EF                         0x80
860 #define UCC_GETH_TAD_V                          0x40
861 #define UCC_GETH_TAD_REJ                        0x20
862 #define UCC_GETH_TAD_VTAG_OP_RIGHT_SHIFT        2
863 #define UCC_GETH_TAD_VTAG_OP_SHIFT              6
864 #define UCC_GETH_TAD_V_NON_VTAG_OP              0x20
865 #define UCC_GETH_TAD_RQOS_SHIFT                 0
866 #define UCC_GETH_TAD_V_PRIORITY_SHIFT           5
867 #define UCC_GETH_TAD_CFI                        0x10
868 
869 #define UCC_GETH_VLAN_PRIORITY_MAX              8
870 #define UCC_GETH_IP_PRIORITY_MAX                64
871 #define UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX        8
872 #define UCC_GETH_RX_BD_RING_SIZE_MIN            8
873 #define UCC_GETH_TX_BD_RING_SIZE_MIN            2
874 #define UCC_GETH_BD_RING_SIZE_MAX		0xffff
875 
876 #define UCC_GETH_SIZE_OF_BD                     QE_SIZEOF_BD
877 
878 /* Driver definitions */
879 #define TX_BD_RING_LEN                          0x10
880 #define RX_BD_RING_LEN                          0x20
881 
882 #define TX_RING_MOD_MASK(size)                  (size-1)
883 #define RX_RING_MOD_MASK(size)                  (size-1)
884 
885 #define ENET_GROUP_ADDR                         0x01	/* Group address mask
886 							   for ethernet
887 							   addresses */
888 
889 #define TX_TIMEOUT                              (1*HZ)
890 #define SKB_ALLOC_TIMEOUT                       100000
891 #define PHY_INIT_TIMEOUT                        100000
892 #define PHY_CHANGE_TIME                         2
893 
894 /* Fast Ethernet (10/100 Mbps) */
895 #define UCC_GETH_URFS_INIT                      512	/* Rx virtual FIFO size
896 							 */
897 #define UCC_GETH_URFET_INIT                     256	/* 1/2 urfs */
898 #define UCC_GETH_URFSET_INIT                    384	/* 3/4 urfs */
899 #define UCC_GETH_UTFS_INIT                      512	/* Tx virtual FIFO size
900 							 */
901 #define UCC_GETH_UTFET_INIT                     256	/* 1/2 utfs */
902 #define UCC_GETH_UTFTT_INIT                     256	/* 1/2 utfs
903 							   due to errata */
904 /* Gigabit Ethernet (1000 Mbps) */
905 #define UCC_GETH_URFS_GIGA_INIT                 4096/*2048*/	/* Rx virtual
906 								   FIFO size */
907 #define UCC_GETH_URFET_GIGA_INIT                2048/*1024*/	/* 1/2 urfs */
908 #define UCC_GETH_URFSET_GIGA_INIT               3072/*1536*/	/* 3/4 urfs */
909 #define UCC_GETH_UTFS_GIGA_INIT                 4096/*2048*/	/* Tx virtual
910 								   FIFO size */
911 #define UCC_GETH_UTFET_GIGA_INIT                2048/*1024*/	/* 1/2 utfs */
912 #define UCC_GETH_UTFTT_GIGA_INIT                4096/*0x40*/	/* Tx virtual
913 								   FIFO size */
914 
915 #define UCC_GETH_REMODER_INIT                   0	/* bits that must be
916 							   set */
917 #define UCC_GETH_TEMODER_INIT                   0xC000	/* bits that must */
918 
919 /* Initial value for UPSMR */
920 #define UCC_GETH_UPSMR_INIT                     UCC_GETH_UPSMR_RES1
921 
922 #define UCC_GETH_MACCFG1_INIT                   0
923 #define UCC_GETH_MACCFG2_INIT                   (MACCFG2_RESERVED_1)
924 
925 /* Ethernet Address Type. */
926 enum enet_addr_type {
927 	ENET_ADDR_TYPE_INDIVIDUAL,
928 	ENET_ADDR_TYPE_GROUP,
929 	ENET_ADDR_TYPE_BROADCAST
930 };
931 
932 /* UCC GETH 82xx Ethernet Address Recognition Location */
933 enum ucc_geth_enet_address_recognition_location {
934 	UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_STATION_ADDRESS,/* station
935 								      address */
936 	UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR_FIRST,	/* additional
937 								   station
938 								   address
939 								   paddr1 */
940 	UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR2,	/* additional
941 								   station
942 								   address
943 								   paddr2 */
944 	UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR3,	/* additional
945 								   station
946 								   address
947 								   paddr3 */
948 	UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_PADDR_LAST,	/* additional
949 								   station
950 								   address
951 								   paddr4 */
952 	UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_GROUP_HASH,	/* group hash */
953 	UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_INDIVIDUAL_HASH /* individual
954 								      hash */
955 };
956 
957 /* UCC GETH vlan operation tagged */
958 enum ucc_geth_vlan_operation_tagged {
959 	UCC_GETH_VLAN_OPERATION_TAGGED_NOP = 0x0,	/* Tagged - nop */
960 	UCC_GETH_VLAN_OPERATION_TAGGED_REPLACE_VID_PORTION_OF_Q_TAG
961 		= 0x1,	/* Tagged - replace vid portion of q tag */
962 	UCC_GETH_VLAN_OPERATION_TAGGED_IF_VID0_REPLACE_VID_WITH_DEFAULT_VALUE
963 		= 0x2,	/* Tagged - if vid0 replace vid with default value  */
964 	UCC_GETH_VLAN_OPERATION_TAGGED_EXTRACT_Q_TAG_FROM_FRAME
965 		= 0x3	/* Tagged - extract q tag from frame */
966 };
967 
968 /* UCC GETH vlan operation non-tagged */
969 enum ucc_geth_vlan_operation_non_tagged {
970 	UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP = 0x0,	/* Non tagged - nop */
971 	UCC_GETH_VLAN_OPERATION_NON_TAGGED_Q_TAG_INSERT = 0x1	/* Non tagged -
972 								   q tag insert
973 								 */
974 };
975 
976 /* UCC GETH Rx Quality of Service Mode */
977 enum ucc_geth_qos_mode {
978 	UCC_GETH_QOS_MODE_DEFAULT = 0x0,	/* default queue */
979 	UCC_GETH_QOS_MODE_QUEUE_NUM_FROM_L2_CRITERIA = 0x1,	/* queue
980 								   determined
981 								   by L2
982 								   criteria */
983 	UCC_GETH_QOS_MODE_QUEUE_NUM_FROM_L3_CRITERIA = 0x2	/* queue
984 								   determined
985 								   by L3
986 								   criteria */
987 };
988 
989 /* UCC GETH Statistics Gathering Mode - These are bit flags, 'or' them together
990    for combined functionality */
991 enum ucc_geth_statistics_gathering_mode {
992 	UCC_GETH_STATISTICS_GATHERING_MODE_NONE = 0x00000000,	/* No
993 								   statistics
994 								   gathering */
995 	UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE = 0x00000001,/* Enable
996 								    hardware
997 								    statistics
998 								    gathering
999 								  */
1000 	UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX = 0x00000004,/*Enable
1001 								      firmware
1002 								      tx
1003 								      statistics
1004 								      gathering
1005 								     */
1006 	UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX = 0x00000008/* Enable
1007 								      firmware
1008 								      rx
1009 								      statistics
1010 								      gathering
1011 								    */
1012 };
1013 
1014 /* UCC GETH Pad and CRC Mode - Note, Padding without CRC is not possible */
1015 enum ucc_geth_maccfg2_pad_and_crc_mode {
1016 	UCC_GETH_PAD_AND_CRC_MODE_NONE
1017 		= MACCFG2_PAD_AND_CRC_MODE_NONE,	/* Neither Padding
1018 							   short frames
1019 							   nor CRC */
1020 	UCC_GETH_PAD_AND_CRC_MODE_CRC_ONLY
1021 		= MACCFG2_PAD_AND_CRC_MODE_CRC_ONLY,	/* Append
1022 							   CRC only */
1023 	UCC_GETH_PAD_AND_CRC_MODE_PAD_AND_CRC =
1024 	    MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC
1025 };
1026 
1027 /* UCC GETH upsmr Flow Control Mode */
1028 enum ucc_geth_flow_control_mode {
1029 	UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE = 0x00000000,	/* No automatic
1030 								   flow control
1031 								 */
1032 	UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_PAUSE_WHEN_EMERGENCY
1033 		= 0x00004000	/* Send pause frame when RxFIFO reaches its
1034 				   emergency threshold */
1035 };
1036 
1037 /* UCC GETH number of threads */
1038 enum ucc_geth_num_of_threads {
1039 	UCC_GETH_NUM_OF_THREADS_1 = 0x1,	/* 1 */
1040 	UCC_GETH_NUM_OF_THREADS_2 = 0x2,	/* 2 */
1041 	UCC_GETH_NUM_OF_THREADS_4 = 0x0,	/* 4 */
1042 	UCC_GETH_NUM_OF_THREADS_6 = 0x3,	/* 6 */
1043 	UCC_GETH_NUM_OF_THREADS_8 = 0x4	/* 8 */
1044 };
1045 
1046 /* UCC GETH number of station addresses */
1047 enum ucc_geth_num_of_station_addresses {
1048 	UCC_GETH_NUM_OF_STATION_ADDRESSES_1,	/* 1 */
1049 	UCC_GETH_NUM_OF_STATION_ADDRESSES_5	/* 5 */
1050 };
1051 
1052 /* UCC GETH 82xx Ethernet Address Container */
1053 struct enet_addr_container {
1054 	u8 address[ETH_ALEN];	/* ethernet address */
1055 	enum ucc_geth_enet_address_recognition_location location;	/* location in
1056 								   82xx address
1057 								   recognition
1058 								   hardware */
1059 	struct list_head node;
1060 };
1061 
1062 #define ENET_ADDR_CONT_ENTRY(ptr) list_entry(ptr, struct enet_addr_container, node)
1063 
1064 /* UCC GETH Termination Action Descriptor (TAD) structure. */
1065 struct ucc_geth_tad_params {
1066 	int rx_non_dynamic_extended_features_mode;
1067 	int reject_frame;
1068 	enum ucc_geth_vlan_operation_tagged vtag_op;
1069 	enum ucc_geth_vlan_operation_non_tagged vnontag_op;
1070 	enum ucc_geth_qos_mode rqos;
1071 	u8 vpri;
1072 	u16 vid;
1073 };
1074 
1075 /* GETH protocol initialization structure */
1076 struct ucc_geth_info {
1077 	struct ucc_fast_info uf_info;
1078 	u8 numQueuesTx;
1079 	u8 numQueuesRx;
1080 	int ipCheckSumCheck;
1081 	int ipCheckSumGenerate;
1082 	int rxExtendedFiltering;
1083 	u32 extendedFilteringChainPointer;
1084 	u16 typeorlen;
1085 	int dynamicMaxFrameLength;
1086 	int dynamicMinFrameLength;
1087 	u8 nonBackToBackIfgPart1;
1088 	u8 nonBackToBackIfgPart2;
1089 	u8 miminumInterFrameGapEnforcement;
1090 	u8 backToBackInterFrameGap;
1091 	int ipAddressAlignment;
1092 	int lengthCheckRx;
1093 	u32 mblinterval;
1094 	u16 nortsrbytetime;
1095 	u8 fracsiz;
1096 	u8 strictpriorityq;
1097 	u8 txasap;
1098 	u8 extrabw;
1099 	int miiPreambleSupress;
1100 	u8 altBebTruncation;
1101 	int altBeb;
1102 	int backPressureNoBackoff;
1103 	int noBackoff;
1104 	int excessDefer;
1105 	u8 maxRetransmission;
1106 	u8 collisionWindow;
1107 	int pro;
1108 	int cap;
1109 	int rsh;
1110 	int rlpb;
1111 	int cam;
1112 	int bro;
1113 	int ecm;
1114 	int receiveFlowControl;
1115 	int transmitFlowControl;
1116 	u8 maxGroupAddrInHash;
1117 	u8 maxIndAddrInHash;
1118 	u8 prel;
1119 	u16 maxFrameLength;
1120 	u16 minFrameLength;
1121 	u16 maxD1Length;
1122 	u16 maxD2Length;
1123 	u16 vlantype;
1124 	u16 vlantci;
1125 	u32 ecamptr;
1126 	u32 eventRegMask;
1127 	u16 pausePeriod;
1128 	u16 extensionField;
1129 	struct device_node *phy_node;
1130 	struct device_node *tbi_node;
1131 	u8 weightfactor[NUM_TX_QUEUES];
1132 	u8 interruptcoalescingmaxvalue[NUM_RX_QUEUES];
1133 	u8 l2qt[UCC_GETH_VLAN_PRIORITY_MAX];
1134 	u8 l3qt[UCC_GETH_IP_PRIORITY_MAX];
1135 	u32 vtagtable[UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX];
1136 	u8 iphoffset[TX_IP_OFFSET_ENTRY_MAX];
1137 	u16 bdRingLenTx[NUM_TX_QUEUES];
1138 	u16 bdRingLenRx[NUM_RX_QUEUES];
1139 	enum ucc_geth_num_of_station_addresses numStationAddresses;
1140 	enum qe_fltr_largest_external_tbl_lookup_key_size
1141 	    largestexternallookupkeysize;
1142 	enum ucc_geth_statistics_gathering_mode statisticsMode;
1143 	enum ucc_geth_vlan_operation_tagged vlanOperationTagged;
1144 	enum ucc_geth_vlan_operation_non_tagged vlanOperationNonTagged;
1145 	enum ucc_geth_qos_mode rxQoSMode;
1146 	enum ucc_geth_flow_control_mode aufc;
1147 	enum ucc_geth_maccfg2_pad_and_crc_mode padAndCrc;
1148 	enum ucc_geth_num_of_threads numThreadsTx;
1149 	enum ucc_geth_num_of_threads numThreadsRx;
1150 	unsigned int riscTx;
1151 	unsigned int riscRx;
1152 };
1153 
1154 /* structure representing UCC GETH */
1155 struct ucc_geth_private {
1156 	struct ucc_geth_info *ug_info;
1157 	struct ucc_fast_private *uccf;
1158 	struct device *dev;
1159 	struct net_device *ndev;
1160 	struct napi_struct napi;
1161 	struct work_struct timeout_work;
1162 	struct ucc_geth __iomem *ug_regs;
1163 	struct ucc_geth_init_pram *p_init_enet_param_shadow;
1164 	struct ucc_geth_exf_global_pram __iomem *p_exf_glbl_param;
1165 	u32 exf_glbl_param_offset;
1166 	struct ucc_geth_rx_global_pram __iomem *p_rx_glbl_pram;
1167 	u32 rx_glbl_pram_offset;
1168 	struct ucc_geth_tx_global_pram __iomem *p_tx_glbl_pram;
1169 	u32 tx_glbl_pram_offset;
1170 	struct ucc_geth_send_queue_mem_region __iomem *p_send_q_mem_reg;
1171 	u32 send_q_mem_reg_offset;
1172 	struct ucc_geth_thread_data_tx __iomem *p_thread_data_tx;
1173 	u32 thread_dat_tx_offset;
1174 	struct ucc_geth_thread_data_rx __iomem *p_thread_data_rx;
1175 	u32 thread_dat_rx_offset;
1176 	struct ucc_geth_scheduler __iomem *p_scheduler;
1177 	u32 scheduler_offset;
1178 	struct ucc_geth_tx_firmware_statistics_pram __iomem *p_tx_fw_statistics_pram;
1179 	u32 tx_fw_statistics_pram_offset;
1180 	struct ucc_geth_rx_firmware_statistics_pram __iomem *p_rx_fw_statistics_pram;
1181 	u32 rx_fw_statistics_pram_offset;
1182 	struct ucc_geth_rx_interrupt_coalescing_table __iomem *p_rx_irq_coalescing_tbl;
1183 	u32 rx_irq_coalescing_tbl_offset;
1184 	struct ucc_geth_rx_bd_queues_entry __iomem *p_rx_bd_qs_tbl;
1185 	u32 rx_bd_qs_tbl_offset;
1186 	u8 __iomem *p_tx_bd_ring[NUM_TX_QUEUES];
1187 	u32 tx_bd_ring_offset[NUM_TX_QUEUES];
1188 	u8 __iomem *p_rx_bd_ring[NUM_RX_QUEUES];
1189 	u32 rx_bd_ring_offset[NUM_RX_QUEUES];
1190 	u8 __iomem *confBd[NUM_TX_QUEUES];
1191 	u8 __iomem *txBd[NUM_TX_QUEUES];
1192 	u8 __iomem *rxBd[NUM_RX_QUEUES];
1193 	int badFrame[NUM_RX_QUEUES];
1194 	u16 cpucount[NUM_TX_QUEUES];
1195 	u16 __iomem *p_cpucount[NUM_TX_QUEUES];
1196 	int indAddrRegUsed[NUM_OF_PADDRS];
1197 	u8 paddr[NUM_OF_PADDRS][ETH_ALEN];	/* ethernet address */
1198 	u8 numGroupAddrInHash;
1199 	u8 numIndAddrInHash;
1200 	u8 numIndAddrInReg;
1201 	int rx_extended_features;
1202 	int rx_non_dynamic_extended_features;
1203 	struct list_head conf_skbs;
1204 	struct list_head group_hash_q;
1205 	struct list_head ind_hash_q;
1206 	u32 saved_uccm;
1207 	spinlock_t lock;
1208 	/* pointers to arrays of skbuffs for tx and rx */
1209 	struct sk_buff **tx_skbuff[NUM_TX_QUEUES];
1210 	struct sk_buff **rx_skbuff[NUM_RX_QUEUES];
1211 	/* indices pointing to the next free sbk in skb arrays */
1212 	u16 skb_curtx[NUM_TX_QUEUES];
1213 	u16 skb_currx[NUM_RX_QUEUES];
1214 	/* index of the first skb which hasn't been transmitted yet. */
1215 	u16 skb_dirtytx[NUM_TX_QUEUES];
1216 
1217 	struct ugeth_mii_info *mii_info;
1218 	struct phy_device *phydev;
1219 	phy_interface_t phy_interface;
1220 	int max_speed;
1221 	uint32_t msg_enable;
1222 	int oldspeed;
1223 	int oldduplex;
1224 	int oldlink;
1225 	int wol_en;
1226 
1227 	struct device_node *node;
1228 };
1229 
1230 void uec_set_ethtool_ops(struct net_device *netdev);
1231 int init_flow_control_params(u32 automatic_flow_control_mode,
1232 		int rx_flow_control_enable, int tx_flow_control_enable,
1233 		u16 pause_period, u16 extension_field,
1234 		u32 __iomem *upsmr_register, u32 __iomem *uempr_register,
1235 		u32 __iomem *maccfg1_register);
1236 
1237 
1238 #endif				/* __UCC_GETH_H__ */
1239