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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * drivers/net/ethernet/freescale/gianfar.h
4 *
5 * Gianfar Ethernet Driver
6 * Driver for FEC on MPC8540 and TSEC on MPC8540/MPC8560
7 * Based on 8260_io/fcc_enet.c
8 *
9 * Author: Andy Fleming
10 * Maintainer: Kumar Gala
11 * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com>
12 *
13 * Copyright 2002-2009, 2011-2013 Freescale Semiconductor, Inc.
14 *
15 * Still left to do:
16 * -Add support for module parameters
17 * -Add patch for ethtool phys id
18 */
19#ifndef __GIANFAR_H
20#define __GIANFAR_H
21
22#include <linux/kernel.h>
23#include <linux/sched.h>
24#include <linux/string.h>
25#include <linux/errno.h>
26#include <linux/slab.h>
27#include <linux/interrupt.h>
28#include <linux/delay.h>
29#include <linux/netdevice.h>
30#include <linux/etherdevice.h>
31#include <linux/skbuff.h>
32#include <linux/spinlock.h>
33#include <linux/mm.h>
34#include <linux/mii.h>
35#include <linux/phy.h>
36
37#include <asm/io.h>
38#include <asm/irq.h>
39#include <linux/uaccess.h>
40#include <linux/module.h>
41#include <linux/crc32.h>
42#include <linux/workqueue.h>
43#include <linux/ethtool.h>
44
45struct ethtool_flow_spec_container {
46 struct ethtool_rx_flow_spec fs;
47 struct list_head list;
48};
49
50struct ethtool_rx_list {
51 struct list_head list;
52 unsigned int count;
53};
54
55/* Length for FCB */
56#define GMAC_FCB_LEN 8
57
58/* Length for TxPAL */
59#define GMAC_TXPAL_LEN 16
60
61/* Default padding amount */
62#define DEFAULT_PADDING 2
63
64/* Number of bytes to align the rx bufs to */
65#define RXBUF_ALIGNMENT 64
66
67#define DRV_NAME "gfar-enet"
68
69/* MAXIMUM NUMBER OF QUEUES SUPPORTED */
70#define MAX_TX_QS 0x8
71#define MAX_RX_QS 0x8
72
73/* MAXIMUM NUMBER OF GROUPS SUPPORTED */
74#define MAXGROUPS 0x2
75
76/* These need to be powers of 2 for this driver */
77#define DEFAULT_TX_RING_SIZE 256
78#define DEFAULT_RX_RING_SIZE 256
79
80#define GFAR_RX_BUFF_ALLOC 16
81
82#define GFAR_RX_MAX_RING_SIZE 256
83#define GFAR_TX_MAX_RING_SIZE 256
84
85#define FBTHR_SHIFT 24
86#define DEFAULT_RX_LFC_THR 16
87#define DEFAULT_LFC_PTVVAL 4
88
89#define GFAR_RXB_TRUESIZE 2048
90#define GFAR_SKBFRAG_OVR (RXBUF_ALIGNMENT \
91 + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
92#define GFAR_RXB_SIZE rounddown(GFAR_RXB_TRUESIZE - GFAR_SKBFRAG_OVR, 64)
93#define GFAR_SKBFRAG_SIZE (GFAR_RXB_SIZE + GFAR_SKBFRAG_OVR)
94
95#define TX_RING_MOD_MASK(size) (size-1)
96#define RX_RING_MOD_MASK(size) (size-1)
97#define GFAR_JUMBO_FRAME_SIZE 9600
98
99#define DEFAULT_FIFO_TX_THR 0x100
100#define DEFAULT_FIFO_TX_STARVE 0x40
101#define DEFAULT_FIFO_TX_STARVE_OFF 0x80
102
103/* The number of Exact Match registers */
104#define GFAR_EM_NUM 15
105
106/* Latency of interface clock in nanoseconds */
107/* Interface clock latency , in this case, means the
108 * time described by a value of 1 in the interrupt
109 * coalescing registers' time fields. Since those fields
110 * refer to the time it takes for 64 clocks to pass, the
111 * latencies are as such:
112 * GBIT = 125MHz => 8ns/clock => 8*64 ns / tick
113 * 100 = 25 MHz => 40ns/clock => 40*64 ns / tick
114 * 10 = 2.5 MHz => 400ns/clock => 400*64 ns / tick
115 */
116#define GFAR_GBIT_TIME 512
117#define GFAR_100_TIME 2560
118#define GFAR_10_TIME 25600
119
120#define DEFAULT_TX_COALESCE 1
121#define DEFAULT_TXCOUNT 16
122#define DEFAULT_TXTIME 21
123
124#define DEFAULT_RXTIME 21
125
126#define DEFAULT_RX_COALESCE 0
127#define DEFAULT_RXCOUNT 0
128
129/* TBI register addresses */
130#define MII_TBICON 0x11
131
132/* TBICON register bit fields */
133#define TBICON_CLK_SELECT 0x0020
134
135/* MAC register bits */
136#define MACCFG1_SOFT_RESET 0x80000000
137#define MACCFG1_RESET_RX_MC 0x00080000
138#define MACCFG1_RESET_TX_MC 0x00040000
139#define MACCFG1_RESET_RX_FUN 0x00020000
140#define MACCFG1_RESET_TX_FUN 0x00010000
141#define MACCFG1_LOOPBACK 0x00000100
142#define MACCFG1_RX_FLOW 0x00000020
143#define MACCFG1_TX_FLOW 0x00000010
144#define MACCFG1_SYNCD_RX_EN 0x00000008
145#define MACCFG1_RX_EN 0x00000004
146#define MACCFG1_SYNCD_TX_EN 0x00000002
147#define MACCFG1_TX_EN 0x00000001
148
149#define MACCFG2_INIT_SETTINGS 0x00007205
150#define MACCFG2_FULL_DUPLEX 0x00000001
151#define MACCFG2_IF 0x00000300
152#define MACCFG2_MII 0x00000100
153#define MACCFG2_GMII 0x00000200
154#define MACCFG2_HUGEFRAME 0x00000020
155#define MACCFG2_LENGTHCHECK 0x00000010
156#define MACCFG2_MPEN 0x00000008
157
158#define ECNTRL_FIFM 0x00008000
159#define ECNTRL_INIT_SETTINGS 0x00001000
160#define ECNTRL_TBI_MODE 0x00000020
161#define ECNTRL_REDUCED_MODE 0x00000010
162#define ECNTRL_R100 0x00000008
163#define ECNTRL_REDUCED_MII_MODE 0x00000004
164#define ECNTRL_SGMII_MODE 0x00000002
165
166#define MINFLR_INIT_SETTINGS 0x00000040
167
168/* Tqueue control */
169#define TQUEUE_EN0 0x00008000
170#define TQUEUE_EN1 0x00004000
171#define TQUEUE_EN2 0x00002000
172#define TQUEUE_EN3 0x00001000
173#define TQUEUE_EN4 0x00000800
174#define TQUEUE_EN5 0x00000400
175#define TQUEUE_EN6 0x00000200
176#define TQUEUE_EN7 0x00000100
177#define TQUEUE_EN_ALL 0x0000FF00
178
179#define TR03WT_WT0_MASK 0xFF000000
180#define TR03WT_WT1_MASK 0x00FF0000
181#define TR03WT_WT2_MASK 0x0000FF00
182#define TR03WT_WT3_MASK 0x000000FF
183
184#define TR47WT_WT4_MASK 0xFF000000
185#define TR47WT_WT5_MASK 0x00FF0000
186#define TR47WT_WT6_MASK 0x0000FF00
187#define TR47WT_WT7_MASK 0x000000FF
188
189/* Rqueue control */
190#define RQUEUE_EX0 0x00800000
191#define RQUEUE_EX1 0x00400000
192#define RQUEUE_EX2 0x00200000
193#define RQUEUE_EX3 0x00100000
194#define RQUEUE_EX4 0x00080000
195#define RQUEUE_EX5 0x00040000
196#define RQUEUE_EX6 0x00020000
197#define RQUEUE_EX7 0x00010000
198#define RQUEUE_EX_ALL 0x00FF0000
199
200#define RQUEUE_EN0 0x00000080
201#define RQUEUE_EN1 0x00000040
202#define RQUEUE_EN2 0x00000020
203#define RQUEUE_EN3 0x00000010
204#define RQUEUE_EN4 0x00000008
205#define RQUEUE_EN5 0x00000004
206#define RQUEUE_EN6 0x00000002
207#define RQUEUE_EN7 0x00000001
208#define RQUEUE_EN_ALL 0x000000FF
209
210/* Init to do tx snooping for buffers and descriptors */
211#define DMACTRL_INIT_SETTINGS 0x000000c3
212#define DMACTRL_GRS 0x00000010
213#define DMACTRL_GTS 0x00000008
214
215#define TSTAT_CLEAR_THALT_ALL 0xFF000000
216#define TSTAT_CLEAR_THALT 0x80000000
217#define TSTAT_CLEAR_THALT0 0x80000000
218#define TSTAT_CLEAR_THALT1 0x40000000
219#define TSTAT_CLEAR_THALT2 0x20000000
220#define TSTAT_CLEAR_THALT3 0x10000000
221#define TSTAT_CLEAR_THALT4 0x08000000
222#define TSTAT_CLEAR_THALT5 0x04000000
223#define TSTAT_CLEAR_THALT6 0x02000000
224#define TSTAT_CLEAR_THALT7 0x01000000
225
226/* Interrupt coalescing macros */
227#define IC_ICEN 0x80000000
228#define IC_ICFT_MASK 0x1fe00000
229#define IC_ICFT_SHIFT 21
230#define mk_ic_icft(x) \
231 (((unsigned int)x << IC_ICFT_SHIFT)&IC_ICFT_MASK)
232#define IC_ICTT_MASK 0x0000ffff
233#define mk_ic_ictt(x) (x&IC_ICTT_MASK)
234
235#define mk_ic_value(count, time) (IC_ICEN | \
236 mk_ic_icft(count) | \
237 mk_ic_ictt(time))
238#define get_icft_value(ic) (((unsigned long)ic & IC_ICFT_MASK) >> \
239 IC_ICFT_SHIFT)
240#define get_ictt_value(ic) ((unsigned long)ic & IC_ICTT_MASK)
241
242#define DEFAULT_TXIC mk_ic_value(DEFAULT_TXCOUNT, DEFAULT_TXTIME)
243#define DEFAULT_RXIC mk_ic_value(DEFAULT_RXCOUNT, DEFAULT_RXTIME)
244
245#define RCTRL_TS_ENABLE 0x01000000
246#define RCTRL_PAL_MASK 0x001f0000
247#define RCTRL_LFC 0x00004000
248#define RCTRL_VLEX 0x00002000
249#define RCTRL_FILREN 0x00001000
250#define RCTRL_GHTX 0x00000400
251#define RCTRL_IPCSEN 0x00000200
252#define RCTRL_TUCSEN 0x00000100
253#define RCTRL_PRSDEP_MASK 0x000000c0
254#define RCTRL_PRSDEP_INIT 0x000000c0
255#define RCTRL_PRSFM 0x00000020
256#define RCTRL_PROM 0x00000008
257#define RCTRL_EMEN 0x00000002
258#define RCTRL_REQ_PARSER (RCTRL_VLEX | RCTRL_IPCSEN | \
259 RCTRL_TUCSEN | RCTRL_FILREN)
260#define RCTRL_CHECKSUMMING (RCTRL_IPCSEN | RCTRL_TUCSEN | \
261 RCTRL_PRSDEP_INIT)
262#define RCTRL_EXTHASH (RCTRL_GHTX)
263#define RCTRL_VLAN (RCTRL_PRSDEP_INIT)
264#define RCTRL_PADDING(x) ((x << 16) & RCTRL_PAL_MASK)
265
266
267#define RSTAT_CLEAR_RHALT 0x00800000
268#define RSTAT_CLEAR_RXF0 0x00000080
269#define RSTAT_RXF_MASK 0x000000ff
270
271#define TCTRL_IPCSEN 0x00004000
272#define TCTRL_TUCSEN 0x00002000
273#define TCTRL_VLINS 0x00001000
274#define TCTRL_THDF 0x00000800
275#define TCTRL_RFCPAUSE 0x00000010
276#define TCTRL_TFCPAUSE 0x00000008
277#define TCTRL_TXSCHED_MASK 0x00000006
278#define TCTRL_TXSCHED_INIT 0x00000000
279/* priority scheduling */
280#define TCTRL_TXSCHED_PRIO 0x00000002
281/* weighted round-robin scheduling (WRRS) */
282#define TCTRL_TXSCHED_WRRS 0x00000004
283/* default WRRS weight and policy setting,
284 * tailored to the tr03wt and tr47wt registers:
285 * equal weight for all Tx Qs, measured in 64byte units
286 */
287#define DEFAULT_WRRS_WEIGHT 0x18181818
288
289#define TCTRL_INIT_CSUM (TCTRL_TUCSEN | TCTRL_IPCSEN)
290
291#define IEVENT_INIT_CLEAR 0xffffffff
292#define IEVENT_BABR 0x80000000
293#define IEVENT_RXC 0x40000000
294#define IEVENT_BSY 0x20000000
295#define IEVENT_EBERR 0x10000000
296#define IEVENT_MSRO 0x04000000
297#define IEVENT_GTSC 0x02000000
298#define IEVENT_BABT 0x01000000
299#define IEVENT_TXC 0x00800000
300#define IEVENT_TXE 0x00400000
301#define IEVENT_TXB 0x00200000
302#define IEVENT_TXF 0x00100000
303#define IEVENT_LC 0x00040000
304#define IEVENT_CRL 0x00020000
305#define IEVENT_XFUN 0x00010000
306#define IEVENT_RXB0 0x00008000
307#define IEVENT_MAG 0x00000800
308#define IEVENT_GRSC 0x00000100
309#define IEVENT_RXF0 0x00000080
310#define IEVENT_FGPI 0x00000010
311#define IEVENT_FIR 0x00000008
312#define IEVENT_FIQ 0x00000004
313#define IEVENT_DPE 0x00000002
314#define IEVENT_PERR 0x00000001
315#define IEVENT_RX_MASK (IEVENT_RXB0 | IEVENT_RXF0 | IEVENT_BSY)
316#define IEVENT_TX_MASK (IEVENT_TXB | IEVENT_TXF)
317#define IEVENT_RTX_MASK (IEVENT_RX_MASK | IEVENT_TX_MASK)
318#define IEVENT_ERR_MASK \
319(IEVENT_RXC | IEVENT_BSY | IEVENT_EBERR | IEVENT_MSRO | \
320 IEVENT_BABT | IEVENT_TXC | IEVENT_TXE | IEVENT_LC \
321 | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR \
322 | IEVENT_MAG | IEVENT_BABR)
323
324#define IMASK_INIT_CLEAR 0x00000000
325#define IMASK_BABR 0x80000000
326#define IMASK_RXC 0x40000000
327#define IMASK_BSY 0x20000000
328#define IMASK_EBERR 0x10000000
329#define IMASK_MSRO 0x04000000
330#define IMASK_GTSC 0x02000000
331#define IMASK_BABT 0x01000000
332#define IMASK_TXC 0x00800000
333#define IMASK_TXEEN 0x00400000
334#define IMASK_TXBEN 0x00200000
335#define IMASK_TXFEN 0x00100000
336#define IMASK_LC 0x00040000
337#define IMASK_CRL 0x00020000
338#define IMASK_XFUN 0x00010000
339#define IMASK_RXB0 0x00008000
340#define IMASK_MAG 0x00000800
341#define IMASK_GRSC 0x00000100
342#define IMASK_RXFEN0 0x00000080
343#define IMASK_FGPI 0x00000010
344#define IMASK_FIR 0x00000008
345#define IMASK_FIQ 0x00000004
346#define IMASK_DPE 0x00000002
347#define IMASK_PERR 0x00000001
348#define IMASK_DEFAULT (IMASK_TXEEN | IMASK_TXFEN | IMASK_TXBEN | \
349 IMASK_RXFEN0 | IMASK_BSY | IMASK_EBERR | IMASK_BABR | \
350 IMASK_XFUN | IMASK_RXC | IMASK_BABT | IMASK_DPE \
351 | IMASK_PERR)
352#define IMASK_RX_DEFAULT (IMASK_RXFEN0 | IMASK_BSY)
353#define IMASK_TX_DEFAULT (IMASK_TXFEN | IMASK_TXBEN)
354
355#define IMASK_RX_DISABLED ((~(IMASK_RX_DEFAULT)) & IMASK_DEFAULT)
356#define IMASK_TX_DISABLED ((~(IMASK_TX_DEFAULT)) & IMASK_DEFAULT)
357
358/* Attribute fields */
359
360/* This enables rx snooping for buffers and descriptors */
361#define ATTR_BDSTASH 0x00000800
362
363#define ATTR_BUFSTASH 0x00004000
364
365#define ATTR_SNOOPING 0x000000c0
366#define ATTR_INIT_SETTINGS ATTR_SNOOPING
367
368#define ATTRELI_INIT_SETTINGS 0x0
369#define ATTRELI_EL_MASK 0x3fff0000
370#define ATTRELI_EL(x) (x << 16)
371#define ATTRELI_EI_MASK 0x00003fff
372#define ATTRELI_EI(x) (x)
373
374#define BD_LFLAG(flags) ((flags) << 16)
375#define BD_LENGTH_MASK 0x0000ffff
376
377#define FPR_FILER_MASK 0xFFFFFFFF
378#define MAX_FILER_IDX 0xFF
379
380/* This default RIR value directly corresponds
381 * to the 3-bit hash value generated */
382#define DEFAULT_8RXQ_RIR0 0x05397700
383/* Map even hash values to Q0, and odd ones to Q1 */
384#define DEFAULT_2RXQ_RIR0 0x04104100
385
386/* RQFCR register bits */
387#define RQFCR_GPI 0x80000000
388#define RQFCR_HASHTBL_Q 0x00000000
389#define RQFCR_HASHTBL_0 0x00020000
390#define RQFCR_HASHTBL_1 0x00040000
391#define RQFCR_HASHTBL_2 0x00060000
392#define RQFCR_HASHTBL_3 0x00080000
393#define RQFCR_HASH 0x00010000
394#define RQFCR_QUEUE 0x0000FC00
395#define RQFCR_CLE 0x00000200
396#define RQFCR_RJE 0x00000100
397#define RQFCR_AND 0x00000080
398#define RQFCR_CMP_EXACT 0x00000000
399#define RQFCR_CMP_MATCH 0x00000020
400#define RQFCR_CMP_NOEXACT 0x00000040
401#define RQFCR_CMP_NOMATCH 0x00000060
402
403/* RQFCR PID values */
404#define RQFCR_PID_MASK 0x00000000
405#define RQFCR_PID_PARSE 0x00000001
406#define RQFCR_PID_ARB 0x00000002
407#define RQFCR_PID_DAH 0x00000003
408#define RQFCR_PID_DAL 0x00000004
409#define RQFCR_PID_SAH 0x00000005
410#define RQFCR_PID_SAL 0x00000006
411#define RQFCR_PID_ETY 0x00000007
412#define RQFCR_PID_VID 0x00000008
413#define RQFCR_PID_PRI 0x00000009
414#define RQFCR_PID_TOS 0x0000000A
415#define RQFCR_PID_L4P 0x0000000B
416#define RQFCR_PID_DIA 0x0000000C
417#define RQFCR_PID_SIA 0x0000000D
418#define RQFCR_PID_DPT 0x0000000E
419#define RQFCR_PID_SPT 0x0000000F
420
421/* RQFPR when PID is 0x0001 */
422#define RQFPR_HDR_GE_512 0x00200000
423#define RQFPR_LERR 0x00100000
424#define RQFPR_RAR 0x00080000
425#define RQFPR_RARQ 0x00040000
426#define RQFPR_AR 0x00020000
427#define RQFPR_ARQ 0x00010000
428#define RQFPR_EBC 0x00008000
429#define RQFPR_VLN 0x00004000
430#define RQFPR_CFI 0x00002000
431#define RQFPR_JUM 0x00001000
432#define RQFPR_IPF 0x00000800
433#define RQFPR_FIF 0x00000400
434#define RQFPR_IPV4 0x00000200
435#define RQFPR_IPV6 0x00000100
436#define RQFPR_ICC 0x00000080
437#define RQFPR_ICV 0x00000040
438#define RQFPR_TCP 0x00000020
439#define RQFPR_UDP 0x00000010
440#define RQFPR_TUC 0x00000008
441#define RQFPR_TUV 0x00000004
442#define RQFPR_PER 0x00000002
443#define RQFPR_EER 0x00000001
444
445/* CAR1 bits */
446#define CAR1_C164 0x80000000
447#define CAR1_C1127 0x40000000
448#define CAR1_C1255 0x20000000
449#define CAR1_C1511 0x10000000
450#define CAR1_C11K 0x08000000
451#define CAR1_C1MAX 0x04000000
452#define CAR1_C1MGV 0x02000000
453#define CAR1_C1REJ 0x00020000
454#define CAR1_C1RBY 0x00010000
455#define CAR1_C1RPK 0x00008000
456#define CAR1_C1RFC 0x00004000
457#define CAR1_C1RMC 0x00002000
458#define CAR1_C1RBC 0x00001000
459#define CAR1_C1RXC 0x00000800
460#define CAR1_C1RXP 0x00000400
461#define CAR1_C1RXU 0x00000200
462#define CAR1_C1RAL 0x00000100
463#define CAR1_C1RFL 0x00000080
464#define CAR1_C1RCD 0x00000040
465#define CAR1_C1RCS 0x00000020
466#define CAR1_C1RUN 0x00000010
467#define CAR1_C1ROV 0x00000008
468#define CAR1_C1RFR 0x00000004
469#define CAR1_C1RJB 0x00000002
470#define CAR1_C1RDR 0x00000001
471
472/* CAM1 bits */
473#define CAM1_M164 0x80000000
474#define CAM1_M1127 0x40000000
475#define CAM1_M1255 0x20000000
476#define CAM1_M1511 0x10000000
477#define CAM1_M11K 0x08000000
478#define CAM1_M1MAX 0x04000000
479#define CAM1_M1MGV 0x02000000
480#define CAM1_M1REJ 0x00020000
481#define CAM1_M1RBY 0x00010000
482#define CAM1_M1RPK 0x00008000
483#define CAM1_M1RFC 0x00004000
484#define CAM1_M1RMC 0x00002000
485#define CAM1_M1RBC 0x00001000
486#define CAM1_M1RXC 0x00000800
487#define CAM1_M1RXP 0x00000400
488#define CAM1_M1RXU 0x00000200
489#define CAM1_M1RAL 0x00000100
490#define CAM1_M1RFL 0x00000080
491#define CAM1_M1RCD 0x00000040
492#define CAM1_M1RCS 0x00000020
493#define CAM1_M1RUN 0x00000010
494#define CAM1_M1ROV 0x00000008
495#define CAM1_M1RFR 0x00000004
496#define CAM1_M1RJB 0x00000002
497#define CAM1_M1RDR 0x00000001
498
499/* TxBD status field bits */
500#define TXBD_READY 0x8000
501#define TXBD_PADCRC 0x4000
502#define TXBD_WRAP 0x2000
503#define TXBD_INTERRUPT 0x1000
504#define TXBD_LAST 0x0800
505#define TXBD_CRC 0x0400
506#define TXBD_DEF 0x0200
507#define TXBD_HUGEFRAME 0x0080
508#define TXBD_LATECOLLISION 0x0080
509#define TXBD_RETRYLIMIT 0x0040
510#define TXBD_RETRYCOUNTMASK 0x003c
511#define TXBD_UNDERRUN 0x0002
512#define TXBD_TOE 0x0002
513
514/* Tx FCB param bits */
515#define TXFCB_VLN 0x80
516#define TXFCB_IP 0x40
517#define TXFCB_IP6 0x20
518#define TXFCB_TUP 0x10
519#define TXFCB_UDP 0x08
520#define TXFCB_CIP 0x04
521#define TXFCB_CTU 0x02
522#define TXFCB_NPH 0x01
523#define TXFCB_DEFAULT (TXFCB_IP|TXFCB_TUP|TXFCB_CTU|TXFCB_NPH)
524
525/* RxBD status field bits */
526#define RXBD_EMPTY 0x8000
527#define RXBD_RO1 0x4000
528#define RXBD_WRAP 0x2000
529#define RXBD_INTERRUPT 0x1000
530#define RXBD_LAST 0x0800
531#define RXBD_FIRST 0x0400
532#define RXBD_MISS 0x0100
533#define RXBD_BROADCAST 0x0080
534#define RXBD_MULTICAST 0x0040
535#define RXBD_LARGE 0x0020
536#define RXBD_NONOCTET 0x0010
537#define RXBD_SHORT 0x0008
538#define RXBD_CRCERR 0x0004
539#define RXBD_OVERRUN 0x0002
540#define RXBD_TRUNCATED 0x0001
541#define RXBD_STATS 0x01ff
542#define RXBD_ERR (RXBD_LARGE | RXBD_SHORT | RXBD_NONOCTET \
543 | RXBD_CRCERR | RXBD_OVERRUN \
544 | RXBD_TRUNCATED)
545
546/* Rx FCB status field bits */
547#define RXFCB_VLN 0x8000
548#define RXFCB_IP 0x4000
549#define RXFCB_IP6 0x2000
550#define RXFCB_TUP 0x1000
551#define RXFCB_CIP 0x0800
552#define RXFCB_CTU 0x0400
553#define RXFCB_EIP 0x0200
554#define RXFCB_ETU 0x0100
555#define RXFCB_CSUM_MASK 0x0f00
556#define RXFCB_PERR_MASK 0x000c
557#define RXFCB_PERR_BADL3 0x0008
558
559#define GFAR_INT_NAME_MAX (IFNAMSIZ + 6) /* '_g#_xx' */
560
561#define GFAR_WOL_MAGIC 0x00000001
562#define GFAR_WOL_FILER_UCAST 0x00000002
563
564struct txbd8
565{
566 union {
567 struct {
568 __be16 status; /* Status Fields */
569 __be16 length; /* Buffer length */
570 };
571 __be32 lstatus;
572 };
573 __be32 bufPtr; /* Buffer Pointer */
574};
575
576struct txfcb {
577 u8 flags;
578 u8 ptp; /* Flag to enable tx timestamping */
579 u8 l4os; /* Level 4 Header Offset */
580 u8 l3os; /* Level 3 Header Offset */
581 __be16 phcs; /* Pseudo-header Checksum */
582 __be16 vlctl; /* VLAN control word */
583};
584
585struct rxbd8
586{
587 union {
588 struct {
589 __be16 status; /* Status Fields */
590 __be16 length; /* Buffer Length */
591 };
592 __be32 lstatus;
593 };
594 __be32 bufPtr; /* Buffer Pointer */
595};
596
597struct rxfcb {
598 __be16 flags;
599 u8 rq; /* Receive Queue index */
600 u8 pro; /* Layer 4 Protocol */
601 u16 reserved;
602 __be16 vlctl; /* VLAN control word */
603};
604
605struct gianfar_skb_cb {
606 unsigned int bytes_sent; /* bytes-on-wire (i.e. no FCB) */
607};
608
609#define GFAR_CB(skb) ((struct gianfar_skb_cb *)((skb)->cb))
610
611struct rmon_mib
612{
613 u32 tr64; /* 0x.680 - Transmit and Receive 64-byte Frame Counter */
614 u32 tr127; /* 0x.684 - Transmit and Receive 65-127 byte Frame Counter */
615 u32 tr255; /* 0x.688 - Transmit and Receive 128-255 byte Frame Counter */
616 u32 tr511; /* 0x.68c - Transmit and Receive 256-511 byte Frame Counter */
617 u32 tr1k; /* 0x.690 - Transmit and Receive 512-1023 byte Frame Counter */
618 u32 trmax; /* 0x.694 - Transmit and Receive 1024-1518 byte Frame Counter */
619 u32 trmgv; /* 0x.698 - Transmit and Receive 1519-1522 byte Good VLAN Frame */
620 u32 rbyt; /* 0x.69c - Receive Byte Counter */
621 u32 rpkt; /* 0x.6a0 - Receive Packet Counter */
622 u32 rfcs; /* 0x.6a4 - Receive FCS Error Counter */
623 u32 rmca; /* 0x.6a8 - Receive Multicast Packet Counter */
624 u32 rbca; /* 0x.6ac - Receive Broadcast Packet Counter */
625 u32 rxcf; /* 0x.6b0 - Receive Control Frame Packet Counter */
626 u32 rxpf; /* 0x.6b4 - Receive Pause Frame Packet Counter */
627 u32 rxuo; /* 0x.6b8 - Receive Unknown OP Code Counter */
628 u32 raln; /* 0x.6bc - Receive Alignment Error Counter */
629 u32 rflr; /* 0x.6c0 - Receive Frame Length Error Counter */
630 u32 rcde; /* 0x.6c4 - Receive Code Error Counter */
631 u32 rcse; /* 0x.6c8 - Receive Carrier Sense Error Counter */
632 u32 rund; /* 0x.6cc - Receive Undersize Packet Counter */
633 u32 rovr; /* 0x.6d0 - Receive Oversize Packet Counter */
634 u32 rfrg; /* 0x.6d4 - Receive Fragments Counter */
635 u32 rjbr; /* 0x.6d8 - Receive Jabber Counter */
636 u32 rdrp; /* 0x.6dc - Receive Drop Counter */
637 u32 tbyt; /* 0x.6e0 - Transmit Byte Counter Counter */
638 u32 tpkt; /* 0x.6e4 - Transmit Packet Counter */
639 u32 tmca; /* 0x.6e8 - Transmit Multicast Packet Counter */
640 u32 tbca; /* 0x.6ec - Transmit Broadcast Packet Counter */
641 u32 txpf; /* 0x.6f0 - Transmit Pause Control Frame Counter */
642 u32 tdfr; /* 0x.6f4 - Transmit Deferral Packet Counter */
643 u32 tedf; /* 0x.6f8 - Transmit Excessive Deferral Packet Counter */
644 u32 tscl; /* 0x.6fc - Transmit Single Collision Packet Counter */
645 u32 tmcl; /* 0x.700 - Transmit Multiple Collision Packet Counter */
646 u32 tlcl; /* 0x.704 - Transmit Late Collision Packet Counter */
647 u32 txcl; /* 0x.708 - Transmit Excessive Collision Packet Counter */
648 u32 tncl; /* 0x.70c - Transmit Total Collision Counter */
649 u8 res1[4];
650 u32 tdrp; /* 0x.714 - Transmit Drop Frame Counter */
651 u32 tjbr; /* 0x.718 - Transmit Jabber Frame Counter */
652 u32 tfcs; /* 0x.71c - Transmit FCS Error Counter */
653 u32 txcf; /* 0x.720 - Transmit Control Frame Counter */
654 u32 tovr; /* 0x.724 - Transmit Oversize Frame Counter */
655 u32 tund; /* 0x.728 - Transmit Undersize Frame Counter */
656 u32 tfrg; /* 0x.72c - Transmit Fragments Frame Counter */
657 u32 car1; /* 0x.730 - Carry Register One */
658 u32 car2; /* 0x.734 - Carry Register Two */
659 u32 cam1; /* 0x.738 - Carry Mask Register One */
660 u32 cam2; /* 0x.73c - Carry Mask Register Two */
661};
662
663struct rmon_overflow {
664 /* lock for synchronization of the rdrp field of this struct, and
665 * CAR1/CAR2 registers
666 */
667 spinlock_t lock;
668 u32 imask;
669 u64 rdrp;
670};
671
672struct gfar_extra_stats {
673 atomic64_t rx_alloc_err;
674 atomic64_t rx_large;
675 atomic64_t rx_short;
676 atomic64_t rx_nonoctet;
677 atomic64_t rx_crcerr;
678 atomic64_t rx_overrun;
679 atomic64_t rx_bsy;
680 atomic64_t rx_babr;
681 atomic64_t rx_trunc;
682 atomic64_t eberr;
683 atomic64_t tx_babt;
684 atomic64_t tx_underrun;
685 atomic64_t tx_timeout;
686};
687
688#define GFAR_RMON_LEN ((sizeof(struct rmon_mib) - 16)/sizeof(u32))
689#define GFAR_EXTRA_STATS_LEN \
690 (sizeof(struct gfar_extra_stats)/sizeof(atomic64_t))
691
692/* Number of stats exported via ethtool */
693#define GFAR_STATS_LEN (GFAR_RMON_LEN + GFAR_EXTRA_STATS_LEN)
694
695struct gfar {
696 u32 tsec_id; /* 0x.000 - Controller ID register */
697 u32 tsec_id2; /* 0x.004 - Controller ID2 register */
698 u8 res1[8];
699 u32 ievent; /* 0x.010 - Interrupt Event Register */
700 u32 imask; /* 0x.014 - Interrupt Mask Register */
701 u32 edis; /* 0x.018 - Error Disabled Register */
702 u32 emapg; /* 0x.01c - Group Error mapping register */
703 u32 ecntrl; /* 0x.020 - Ethernet Control Register */
704 u32 minflr; /* 0x.024 - Minimum Frame Length Register */
705 u32 ptv; /* 0x.028 - Pause Time Value Register */
706 u32 dmactrl; /* 0x.02c - DMA Control Register */
707 u32 tbipa; /* 0x.030 - TBI PHY Address Register */
708 u8 res2[28];
709 u32 fifo_rx_pause; /* 0x.050 - FIFO receive pause start threshold
710 register */
711 u32 fifo_rx_pause_shutoff; /* x.054 - FIFO receive starve shutoff
712 register */
713 u32 fifo_rx_alarm; /* 0x.058 - FIFO receive alarm start threshold
714 register */
715 u32 fifo_rx_alarm_shutoff; /*0x.05c - FIFO receive alarm starve
716 shutoff register */
717 u8 res3[44];
718 u32 fifo_tx_thr; /* 0x.08c - FIFO transmit threshold register */
719 u8 res4[8];
720 u32 fifo_tx_starve; /* 0x.098 - FIFO transmit starve register */
721 u32 fifo_tx_starve_shutoff; /* 0x.09c - FIFO transmit starve shutoff register */
722 u8 res5[96];
723 u32 tctrl; /* 0x.100 - Transmit Control Register */
724 u32 tstat; /* 0x.104 - Transmit Status Register */
725 u32 dfvlan; /* 0x.108 - Default VLAN Control word */
726 u32 tbdlen; /* 0x.10c - Transmit Buffer Descriptor Data Length Register */
727 u32 txic; /* 0x.110 - Transmit Interrupt Coalescing Configuration Register */
728 u32 tqueue; /* 0x.114 - Transmit queue control register */
729 u8 res7[40];
730 u32 tr03wt; /* 0x.140 - TxBD Rings 0-3 round-robin weightings */
731 u32 tr47wt; /* 0x.144 - TxBD Rings 4-7 round-robin weightings */
732 u8 res8[52];
733 u32 tbdbph; /* 0x.17c - Tx data buffer pointer high */
734 u8 res9a[4];
735 u32 tbptr0; /* 0x.184 - TxBD Pointer for ring 0 */
736 u8 res9b[4];
737 u32 tbptr1; /* 0x.18c - TxBD Pointer for ring 1 */
738 u8 res9c[4];
739 u32 tbptr2; /* 0x.194 - TxBD Pointer for ring 2 */
740 u8 res9d[4];
741 u32 tbptr3; /* 0x.19c - TxBD Pointer for ring 3 */
742 u8 res9e[4];
743 u32 tbptr4; /* 0x.1a4 - TxBD Pointer for ring 4 */
744 u8 res9f[4];
745 u32 tbptr5; /* 0x.1ac - TxBD Pointer for ring 5 */
746 u8 res9g[4];
747 u32 tbptr6; /* 0x.1b4 - TxBD Pointer for ring 6 */
748 u8 res9h[4];
749 u32 tbptr7; /* 0x.1bc - TxBD Pointer for ring 7 */
750 u8 res9[64];
751 u32 tbaseh; /* 0x.200 - TxBD base address high */
752 u32 tbase0; /* 0x.204 - TxBD Base Address of ring 0 */
753 u8 res10a[4];
754 u32 tbase1; /* 0x.20c - TxBD Base Address of ring 1 */
755 u8 res10b[4];
756 u32 tbase2; /* 0x.214 - TxBD Base Address of ring 2 */
757 u8 res10c[4];
758 u32 tbase3; /* 0x.21c - TxBD Base Address of ring 3 */
759 u8 res10d[4];
760 u32 tbase4; /* 0x.224 - TxBD Base Address of ring 4 */
761 u8 res10e[4];
762 u32 tbase5; /* 0x.22c - TxBD Base Address of ring 5 */
763 u8 res10f[4];
764 u32 tbase6; /* 0x.234 - TxBD Base Address of ring 6 */
765 u8 res10g[4];
766 u32 tbase7; /* 0x.23c - TxBD Base Address of ring 7 */
767 u8 res10[192];
768 u32 rctrl; /* 0x.300 - Receive Control Register */
769 u32 rstat; /* 0x.304 - Receive Status Register */
770 u8 res12[8];
771 u32 rxic; /* 0x.310 - Receive Interrupt Coalescing Configuration Register */
772 u32 rqueue; /* 0x.314 - Receive queue control register */
773 u32 rir0; /* 0x.318 - Ring mapping register 0 */
774 u32 rir1; /* 0x.31c - Ring mapping register 1 */
775 u32 rir2; /* 0x.320 - Ring mapping register 2 */
776 u32 rir3; /* 0x.324 - Ring mapping register 3 */
777 u8 res13[8];
778 u32 rbifx; /* 0x.330 - Receive bit field extract control register */
779 u32 rqfar; /* 0x.334 - Receive queue filing table address register */
780 u32 rqfcr; /* 0x.338 - Receive queue filing table control register */
781 u32 rqfpr; /* 0x.33c - Receive queue filing table property register */
782 u32 mrblr; /* 0x.340 - Maximum Receive Buffer Length Register */
783 u8 res14[56];
784 u32 rbdbph; /* 0x.37c - Rx data buffer pointer high */
785 u8 res15a[4];
786 u32 rbptr0; /* 0x.384 - RxBD pointer for ring 0 */
787 u8 res15b[4];
788 u32 rbptr1; /* 0x.38c - RxBD pointer for ring 1 */
789 u8 res15c[4];
790 u32 rbptr2; /* 0x.394 - RxBD pointer for ring 2 */
791 u8 res15d[4];
792 u32 rbptr3; /* 0x.39c - RxBD pointer for ring 3 */
793 u8 res15e[4];
794 u32 rbptr4; /* 0x.3a4 - RxBD pointer for ring 4 */
795 u8 res15f[4];
796 u32 rbptr5; /* 0x.3ac - RxBD pointer for ring 5 */
797 u8 res15g[4];
798 u32 rbptr6; /* 0x.3b4 - RxBD pointer for ring 6 */
799 u8 res15h[4];
800 u32 rbptr7; /* 0x.3bc - RxBD pointer for ring 7 */
801 u8 res16[64];
802 u32 rbaseh; /* 0x.400 - RxBD base address high */
803 u32 rbase0; /* 0x.404 - RxBD base address of ring 0 */
804 u8 res17a[4];
805 u32 rbase1; /* 0x.40c - RxBD base address of ring 1 */
806 u8 res17b[4];
807 u32 rbase2; /* 0x.414 - RxBD base address of ring 2 */
808 u8 res17c[4];
809 u32 rbase3; /* 0x.41c - RxBD base address of ring 3 */
810 u8 res17d[4];
811 u32 rbase4; /* 0x.424 - RxBD base address of ring 4 */
812 u8 res17e[4];
813 u32 rbase5; /* 0x.42c - RxBD base address of ring 5 */
814 u8 res17f[4];
815 u32 rbase6; /* 0x.434 - RxBD base address of ring 6 */
816 u8 res17g[4];
817 u32 rbase7; /* 0x.43c - RxBD base address of ring 7 */
818 u8 res17[192];
819 u32 maccfg1; /* 0x.500 - MAC Configuration 1 Register */
820 u32 maccfg2; /* 0x.504 - MAC Configuration 2 Register */
821 u32 ipgifg; /* 0x.508 - Inter Packet Gap/Inter Frame Gap Register */
822 u32 hafdup; /* 0x.50c - Half Duplex Register */
823 u32 maxfrm; /* 0x.510 - Maximum Frame Length Register */
824 u8 res18[12];
825 u8 gfar_mii_regs[24]; /* See gianfar_phy.h */
826 u32 ifctrl; /* 0x.538 - Interface control register */
827 u32 ifstat; /* 0x.53c - Interface Status Register */
828 u32 macstnaddr1; /* 0x.540 - Station Address Part 1 Register */
829 u32 macstnaddr2; /* 0x.544 - Station Address Part 2 Register */
830 u32 mac01addr1; /* 0x.548 - MAC exact match address 1, part 1 */
831 u32 mac01addr2; /* 0x.54c - MAC exact match address 1, part 2 */
832 u32 mac02addr1; /* 0x.550 - MAC exact match address 2, part 1 */
833 u32 mac02addr2; /* 0x.554 - MAC exact match address 2, part 2 */
834 u32 mac03addr1; /* 0x.558 - MAC exact match address 3, part 1 */
835 u32 mac03addr2; /* 0x.55c - MAC exact match address 3, part 2 */
836 u32 mac04addr1; /* 0x.560 - MAC exact match address 4, part 1 */
837 u32 mac04addr2; /* 0x.564 - MAC exact match address 4, part 2 */
838 u32 mac05addr1; /* 0x.568 - MAC exact match address 5, part 1 */
839 u32 mac05addr2; /* 0x.56c - MAC exact match address 5, part 2 */
840 u32 mac06addr1; /* 0x.570 - MAC exact match address 6, part 1 */
841 u32 mac06addr2; /* 0x.574 - MAC exact match address 6, part 2 */
842 u32 mac07addr1; /* 0x.578 - MAC exact match address 7, part 1 */
843 u32 mac07addr2; /* 0x.57c - MAC exact match address 7, part 2 */
844 u32 mac08addr1; /* 0x.580 - MAC exact match address 8, part 1 */
845 u32 mac08addr2; /* 0x.584 - MAC exact match address 8, part 2 */
846 u32 mac09addr1; /* 0x.588 - MAC exact match address 9, part 1 */
847 u32 mac09addr2; /* 0x.58c - MAC exact match address 9, part 2 */
848 u32 mac10addr1; /* 0x.590 - MAC exact match address 10, part 1*/
849 u32 mac10addr2; /* 0x.594 - MAC exact match address 10, part 2*/
850 u32 mac11addr1; /* 0x.598 - MAC exact match address 11, part 1*/
851 u32 mac11addr2; /* 0x.59c - MAC exact match address 11, part 2*/
852 u32 mac12addr1; /* 0x.5a0 - MAC exact match address 12, part 1*/
853 u32 mac12addr2; /* 0x.5a4 - MAC exact match address 12, part 2*/
854 u32 mac13addr1; /* 0x.5a8 - MAC exact match address 13, part 1*/
855 u32 mac13addr2; /* 0x.5ac - MAC exact match address 13, part 2*/
856 u32 mac14addr1; /* 0x.5b0 - MAC exact match address 14, part 1*/
857 u32 mac14addr2; /* 0x.5b4 - MAC exact match address 14, part 2*/
858 u32 mac15addr1; /* 0x.5b8 - MAC exact match address 15, part 1*/
859 u32 mac15addr2; /* 0x.5bc - MAC exact match address 15, part 2*/
860 u8 res20[192];
861 struct rmon_mib rmon; /* 0x.680-0x.73c */
862 u32 rrej; /* 0x.740 - Receive filer rejected packet counter */
863 u8 res21[188];
864 u32 igaddr0; /* 0x.800 - Indivdual/Group address register 0*/
865 u32 igaddr1; /* 0x.804 - Indivdual/Group address register 1*/
866 u32 igaddr2; /* 0x.808 - Indivdual/Group address register 2*/
867 u32 igaddr3; /* 0x.80c - Indivdual/Group address register 3*/
868 u32 igaddr4; /* 0x.810 - Indivdual/Group address register 4*/
869 u32 igaddr5; /* 0x.814 - Indivdual/Group address register 5*/
870 u32 igaddr6; /* 0x.818 - Indivdual/Group address register 6*/
871 u32 igaddr7; /* 0x.81c - Indivdual/Group address register 7*/
872 u8 res22[96];
873 u32 gaddr0; /* 0x.880 - Group address register 0 */
874 u32 gaddr1; /* 0x.884 - Group address register 1 */
875 u32 gaddr2; /* 0x.888 - Group address register 2 */
876 u32 gaddr3; /* 0x.88c - Group address register 3 */
877 u32 gaddr4; /* 0x.890 - Group address register 4 */
878 u32 gaddr5; /* 0x.894 - Group address register 5 */
879 u32 gaddr6; /* 0x.898 - Group address register 6 */
880 u32 gaddr7; /* 0x.89c - Group address register 7 */
881 u8 res23a[352];
882 u32 fifocfg; /* 0x.a00 - FIFO interface config register */
883 u8 res23b[252];
884 u8 res23c[248];
885 u32 attr; /* 0x.bf8 - Attributes Register */
886 u32 attreli; /* 0x.bfc - Attributes Extract Length and Extract Index Register */
887 u32 rqprm0; /* 0x.c00 - Receive queue parameters register 0 */
888 u32 rqprm1; /* 0x.c04 - Receive queue parameters register 1 */
889 u32 rqprm2; /* 0x.c08 - Receive queue parameters register 2 */
890 u32 rqprm3; /* 0x.c0c - Receive queue parameters register 3 */
891 u32 rqprm4; /* 0x.c10 - Receive queue parameters register 4 */
892 u32 rqprm5; /* 0x.c14 - Receive queue parameters register 5 */
893 u32 rqprm6; /* 0x.c18 - Receive queue parameters register 6 */
894 u32 rqprm7; /* 0x.c1c - Receive queue parameters register 7 */
895 u8 res24[36];
896 u32 rfbptr0; /* 0x.c44 - Last free RxBD pointer for ring 0 */
897 u8 res24a[4];
898 u32 rfbptr1; /* 0x.c4c - Last free RxBD pointer for ring 1 */
899 u8 res24b[4];
900 u32 rfbptr2; /* 0x.c54 - Last free RxBD pointer for ring 2 */
901 u8 res24c[4];
902 u32 rfbptr3; /* 0x.c5c - Last free RxBD pointer for ring 3 */
903 u8 res24d[4];
904 u32 rfbptr4; /* 0x.c64 - Last free RxBD pointer for ring 4 */
905 u8 res24e[4];
906 u32 rfbptr5; /* 0x.c6c - Last free RxBD pointer for ring 5 */
907 u8 res24f[4];
908 u32 rfbptr6; /* 0x.c74 - Last free RxBD pointer for ring 6 */
909 u8 res24g[4];
910 u32 rfbptr7; /* 0x.c7c - Last free RxBD pointer for ring 7 */
911 u8 res24h[4];
912 u8 res24x[556];
913 u32 isrg0; /* 0x.eb0 - Interrupt steering group 0 register */
914 u32 isrg1; /* 0x.eb4 - Interrupt steering group 1 register */
915 u32 isrg2; /* 0x.eb8 - Interrupt steering group 2 register */
916 u32 isrg3; /* 0x.ebc - Interrupt steering group 3 register */
917 u8 res25[16];
918 u32 rxic0; /* 0x.ed0 - Ring 0 Rx interrupt coalescing */
919 u32 rxic1; /* 0x.ed4 - Ring 1 Rx interrupt coalescing */
920 u32 rxic2; /* 0x.ed8 - Ring 2 Rx interrupt coalescing */
921 u32 rxic3; /* 0x.edc - Ring 3 Rx interrupt coalescing */
922 u32 rxic4; /* 0x.ee0 - Ring 4 Rx interrupt coalescing */
923 u32 rxic5; /* 0x.ee4 - Ring 5 Rx interrupt coalescing */
924 u32 rxic6; /* 0x.ee8 - Ring 6 Rx interrupt coalescing */
925 u32 rxic7; /* 0x.eec - Ring 7 Rx interrupt coalescing */
926 u8 res26[32];
927 u32 txic0; /* 0x.f10 - Ring 0 Tx interrupt coalescing */
928 u32 txic1; /* 0x.f14 - Ring 1 Tx interrupt coalescing */
929 u32 txic2; /* 0x.f18 - Ring 2 Tx interrupt coalescing */
930 u32 txic3; /* 0x.f1c - Ring 3 Tx interrupt coalescing */
931 u32 txic4; /* 0x.f20 - Ring 4 Tx interrupt coalescing */
932 u32 txic5; /* 0x.f24 - Ring 5 Tx interrupt coalescing */
933 u32 txic6; /* 0x.f28 - Ring 6 Tx interrupt coalescing */
934 u32 txic7; /* 0x.f2c - Ring 7 Tx interrupt coalescing */
935 u8 res27[208];
936};
937
938/* Flags related to gianfar device features */
939#define FSL_GIANFAR_DEV_HAS_GIGABIT 0x00000001
940#define FSL_GIANFAR_DEV_HAS_COALESCE 0x00000002
941#define FSL_GIANFAR_DEV_HAS_RMON 0x00000004
942#define FSL_GIANFAR_DEV_HAS_MULTI_INTR 0x00000008
943#define FSL_GIANFAR_DEV_HAS_CSUM 0x00000010
944#define FSL_GIANFAR_DEV_HAS_VLAN 0x00000020
945#define FSL_GIANFAR_DEV_HAS_EXTENDED_HASH 0x00000040
946#define FSL_GIANFAR_DEV_HAS_MAGIC_PACKET 0x00000100
947#define FSL_GIANFAR_DEV_HAS_BD_STASHING 0x00000200
948#define FSL_GIANFAR_DEV_HAS_BUF_STASHING 0x00000400
949#define FSL_GIANFAR_DEV_HAS_TIMER 0x00000800
950#define FSL_GIANFAR_DEV_HAS_WAKE_ON_FILER 0x00001000
951#define FSL_GIANFAR_DEV_HAS_RX_FILER 0x00002000
952
953#if (MAXGROUPS == 2)
954#define DEFAULT_MAPPING 0xAA
955#else
956#define DEFAULT_MAPPING 0xFF
957#endif
958
959#define ISRG_RR0 0x80000000
960#define ISRG_TR0 0x00800000
961
962/* The same driver can operate in two modes */
963/* SQ_SG_MODE: Single Queue Single Group Mode
964 * (Backward compatible mode)
965 * MQ_MG_MODE: Multi Queue Multi Group mode
966 */
967enum {
968 SQ_SG_MODE = 0,
969 MQ_MG_MODE
970};
971
972/*
973 * Per TX queue stats
974 */
975struct tx_q_stats {
976 u64 tx_packets;
977 u64 tx_bytes;
978};
979
980/**
981 * struct gfar_priv_tx_q - per tx queue structure
982 * @txlock: per queue tx spin lock
983 * @tx_skbuff:skb pointers
984 * @skb_curtx: to be used skb pointer
985 * @skb_dirtytx:the last used skb pointer
986 * @stats: bytes/packets stats
987 * @qindex: index of this queue
988 * @dev: back pointer to the dev structure
989 * @grp: back pointer to the group to which this queue belongs
990 * @tx_bd_base: First tx buffer descriptor
991 * @cur_tx: Next free ring entry
992 * @dirty_tx: First buffer in line to be transmitted
993 * @tx_ring_size: Tx ring size
994 * @num_txbdfree: number of free TxBds
995 * @txcoalescing: enable/disable tx coalescing
996 * @txic: transmit interrupt coalescing value
997 * @txcount: coalescing value if based on tx frame count
998 * @txtime: coalescing value if based on time
999 */
1000struct gfar_priv_tx_q {
1001 /* cacheline 1 */
1002 spinlock_t txlock __attribute__ ((aligned (SMP_CACHE_BYTES)));
1003 struct txbd8 *tx_bd_base;
1004 struct txbd8 *cur_tx;
1005 unsigned int num_txbdfree;
1006 unsigned short skb_curtx;
1007 unsigned short tx_ring_size;
1008 struct tx_q_stats stats;
1009 struct gfar_priv_grp *grp;
1010 /* cacheline 2 */
1011 struct net_device *dev;
1012 struct sk_buff **tx_skbuff;
1013 struct txbd8 *dirty_tx;
1014 unsigned short skb_dirtytx;
1015 unsigned short qindex;
1016 /* Configuration info for the coalescing features */
1017 unsigned int txcoalescing;
1018 unsigned long txic;
1019 dma_addr_t tx_bd_dma_base;
1020};
1021
1022/*
1023 * Per RX queue stats
1024 */
1025struct rx_q_stats {
1026 u64 rx_packets;
1027 u64 rx_bytes;
1028 u64 rx_dropped;
1029};
1030
1031struct gfar_rx_buff {
1032 dma_addr_t dma;
1033 struct page *page;
1034 unsigned int page_offset;
1035};
1036
1037/**
1038 * struct gfar_priv_rx_q - per rx queue structure
1039 * @rx_buff: Array of buffer info metadata structs
1040 * @rx_bd_base: First rx buffer descriptor
1041 * @next_to_use: index of the next buffer to be alloc'd
1042 * @next_to_clean: index of the next buffer to be cleaned
1043 * @qindex: index of this queue
1044 * @ndev: back pointer to net_device
1045 * @rx_ring_size: Rx ring size
1046 * @rxcoalescing: enable/disable rx-coalescing
1047 * @rxic: receive interrupt coalescing vlaue
1048 */
1049
1050struct gfar_priv_rx_q {
1051 struct gfar_rx_buff *rx_buff __aligned(SMP_CACHE_BYTES);
1052 struct rxbd8 *rx_bd_base;
1053 struct net_device *ndev;
1054 struct device *dev;
1055 u16 rx_ring_size;
1056 u16 qindex;
1057 struct gfar_priv_grp *grp;
1058 u16 next_to_clean;
1059 u16 next_to_use;
1060 u16 next_to_alloc;
1061 struct sk_buff *skb;
1062 struct rx_q_stats stats;
1063 u32 __iomem *rfbptr;
1064 unsigned char rxcoalescing;
1065 unsigned long rxic;
1066 dma_addr_t rx_bd_dma_base;
1067};
1068
1069enum gfar_irqinfo_id {
1070 GFAR_TX = 0,
1071 GFAR_RX = 1,
1072 GFAR_ER = 2,
1073 GFAR_NUM_IRQS = 3
1074};
1075
1076struct gfar_irqinfo {
1077 unsigned int irq;
1078 char name[GFAR_INT_NAME_MAX];
1079};
1080
1081/**
1082 * struct gfar_priv_grp - per group structure
1083 * @napi: the napi poll function
1084 * @priv: back pointer to the priv structure
1085 * @regs: the ioremapped register space for this group
1086 * @irqinfo: TX/RX/ER irq data for this group
1087 */
1088
1089struct gfar_priv_grp {
1090 spinlock_t grplock __aligned(SMP_CACHE_BYTES);
1091 struct napi_struct napi_rx;
1092 struct napi_struct napi_tx;
1093 struct gfar __iomem *regs;
1094 struct gfar_priv_tx_q *tx_queue;
1095 struct gfar_priv_rx_q *rx_queue;
1096 unsigned int tstat;
1097 unsigned int rstat;
1098
1099 struct gfar_private *priv;
1100 unsigned long num_tx_queues;
1101 unsigned long tx_bit_map;
1102 unsigned long num_rx_queues;
1103 unsigned long rx_bit_map;
1104
1105 struct gfar_irqinfo *irqinfo[GFAR_NUM_IRQS];
1106};
1107
1108#define gfar_irq(grp, ID) \
1109 ((grp)->irqinfo[GFAR_##ID])
1110
1111enum gfar_errata {
1112 GFAR_ERRATA_74 = 0x01,
1113 GFAR_ERRATA_76 = 0x02,
1114 GFAR_ERRATA_A002 = 0x04,
1115 GFAR_ERRATA_12 = 0x08, /* a.k.a errata eTSEC49 */
1116};
1117
1118enum gfar_dev_state {
1119 GFAR_DOWN = 1,
1120 GFAR_RESETTING
1121};
1122
1123/* Struct stolen almost completely (and shamelessly) from the FCC enet source
1124 * (Ok, that's not so true anymore, but there is a family resemblance)
1125 * The GFAR buffer descriptors track the ring buffers. The rx_bd_base
1126 * and tx_bd_base always point to the currently available buffer.
1127 * The dirty_tx tracks the current buffer that is being sent by the
1128 * controller. The cur_tx and dirty_tx are equal under both completely
1129 * empty and completely full conditions. The empty/ready indicator in
1130 * the buffer descriptor determines the actual condition.
1131 */
1132struct gfar_private {
1133 struct device *dev;
1134 struct net_device *ndev;
1135 enum gfar_errata errata;
1136
1137 u16 uses_rxfcb;
1138 u16 padding;
1139 u32 device_flags;
1140
1141 /* HW time stamping enabled flag */
1142 int hwts_rx_en;
1143 int hwts_tx_en;
1144
1145 struct gfar_priv_tx_q *tx_queue[MAX_TX_QS];
1146 struct gfar_priv_rx_q *rx_queue[MAX_RX_QS];
1147 struct gfar_priv_grp gfargrp[MAXGROUPS];
1148
1149 unsigned long state;
1150
1151 unsigned short mode;
1152 unsigned int num_tx_queues;
1153 unsigned int num_rx_queues;
1154 unsigned int num_grps;
1155 int tx_actual_en;
1156
1157 /* Network Statistics */
1158 struct gfar_extra_stats extra_stats;
1159 struct rmon_overflow rmon_overflow;
1160
1161 /* PHY stuff */
1162 phy_interface_t interface;
1163 struct device_node *phy_node;
1164 struct device_node *tbi_node;
1165 struct mii_bus *mii_bus;
1166 int oldspeed;
1167 int oldduplex;
1168 int oldlink;
1169
1170 uint32_t msg_enable;
1171
1172 struct work_struct reset_task;
1173
1174 struct platform_device *ofdev;
1175 unsigned char
1176 extended_hash:1,
1177 bd_stash_en:1,
1178 rx_filer_enable:1,
1179 /* Enable priorty based Tx scheduling in Hw */
1180 prio_sched_en:1,
1181 /* Flow control flags */
1182 pause_aneg_en:1,
1183 tx_pause_en:1,
1184 rx_pause_en:1;
1185
1186 /* The total tx and rx ring size for the enabled queues */
1187 unsigned int total_tx_ring_size;
1188 unsigned int total_rx_ring_size;
1189
1190 u32 rqueue;
1191 u32 tqueue;
1192
1193 /* RX per device parameters */
1194 unsigned int rx_stash_size;
1195 unsigned int rx_stash_index;
1196
1197 u32 cur_filer_idx;
1198
1199 /* RX queue filer rule set*/
1200 struct ethtool_rx_list rx_list;
1201 struct mutex rx_queue_access;
1202
1203 /* Hash registers and their width */
1204 u32 __iomem *hash_regs[16];
1205 int hash_width;
1206
1207 /* wake-on-lan settings */
1208 u16 wol_opts;
1209 u16 wol_supported;
1210
1211 /*Filer table*/
1212 unsigned int ftp_rqfpr[MAX_FILER_IDX + 1];
1213 unsigned int ftp_rqfcr[MAX_FILER_IDX + 1];
1214};
1215
1216
1217static inline int gfar_has_errata(struct gfar_private *priv,
1218 enum gfar_errata err)
1219{
1220 return priv->errata & err;
1221}
1222
1223static inline u32 gfar_read(unsigned __iomem *addr)
1224{
1225 u32 val;
1226 val = ioread32be(addr);
1227 return val;
1228}
1229
1230static inline void gfar_write(unsigned __iomem *addr, u32 val)
1231{
1232 iowrite32be(val, addr);
1233}
1234
1235static inline void gfar_write_filer(struct gfar_private *priv,
1236 unsigned int far, unsigned int fcr, unsigned int fpr)
1237{
1238 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1239
1240 gfar_write(®s->rqfar, far);
1241 gfar_write(®s->rqfcr, fcr);
1242 gfar_write(®s->rqfpr, fpr);
1243}
1244
1245static inline void gfar_read_filer(struct gfar_private *priv,
1246 unsigned int far, unsigned int *fcr, unsigned int *fpr)
1247{
1248 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1249
1250 gfar_write(®s->rqfar, far);
1251 *fcr = gfar_read(®s->rqfcr);
1252 *fpr = gfar_read(®s->rqfpr);
1253}
1254
1255static inline void gfar_write_isrg(struct gfar_private *priv)
1256{
1257 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1258 u32 __iomem *baddr = ®s->isrg0;
1259 u32 isrg = 0;
1260 int grp_idx, i;
1261
1262 for (grp_idx = 0; grp_idx < priv->num_grps; grp_idx++) {
1263 struct gfar_priv_grp *grp = &priv->gfargrp[grp_idx];
1264
1265 for_each_set_bit(i, &grp->rx_bit_map, priv->num_rx_queues) {
1266 isrg |= (ISRG_RR0 >> i);
1267 }
1268
1269 for_each_set_bit(i, &grp->tx_bit_map, priv->num_tx_queues) {
1270 isrg |= (ISRG_TR0 >> i);
1271 }
1272
1273 gfar_write(baddr, isrg);
1274
1275 baddr++;
1276 isrg = 0;
1277 }
1278}
1279
1280static inline int gfar_is_dma_stopped(struct gfar_private *priv)
1281{
1282 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1283
1284 return ((gfar_read(®s->ievent) & (IEVENT_GRSC | IEVENT_GTSC)) ==
1285 (IEVENT_GRSC | IEVENT_GTSC));
1286}
1287
1288static inline int gfar_is_rx_dma_stopped(struct gfar_private *priv)
1289{
1290 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1291
1292 return gfar_read(®s->ievent) & IEVENT_GRSC;
1293}
1294
1295static inline void gfar_wmb(void)
1296{
1297#if defined(CONFIG_PPC)
1298 /* The powerpc-specific eieio() is used, as wmb() has too strong
1299 * semantics (it requires synchronization between cacheable and
1300 * uncacheable mappings, which eieio() doesn't provide and which we
1301 * don't need), thus requiring a more expensive sync instruction. At
1302 * some point, the set of architecture-independent barrier functions
1303 * should be expanded to include weaker barriers.
1304 */
1305 eieio();
1306#else
1307 wmb(); /* order write acesses for BD (or FCB) fields */
1308#endif
1309}
1310
1311static inline void gfar_clear_txbd_status(struct txbd8 *bdp)
1312{
1313 u32 lstatus = be32_to_cpu(bdp->lstatus);
1314
1315 lstatus &= BD_LFLAG(TXBD_WRAP);
1316 bdp->lstatus = cpu_to_be32(lstatus);
1317}
1318
1319static inline int gfar_rxbd_unused(struct gfar_priv_rx_q *rxq)
1320{
1321 if (rxq->next_to_clean > rxq->next_to_use)
1322 return rxq->next_to_clean - rxq->next_to_use - 1;
1323
1324 return rxq->rx_ring_size + rxq->next_to_clean - rxq->next_to_use - 1;
1325}
1326
1327static inline u32 gfar_rxbd_dma_lastfree(struct gfar_priv_rx_q *rxq)
1328{
1329 struct rxbd8 *bdp;
1330 u32 bdp_dma;
1331 int i;
1332
1333 i = rxq->next_to_use ? rxq->next_to_use - 1 : rxq->rx_ring_size - 1;
1334 bdp = &rxq->rx_bd_base[i];
1335 bdp_dma = lower_32_bits(rxq->rx_bd_dma_base);
1336 bdp_dma += (uintptr_t)bdp - (uintptr_t)rxq->rx_bd_base;
1337
1338 return bdp_dma;
1339}
1340
1341int startup_gfar(struct net_device *dev);
1342void stop_gfar(struct net_device *dev);
1343void gfar_mac_reset(struct gfar_private *priv);
1344int gfar_set_features(struct net_device *dev, netdev_features_t features);
1345
1346extern const struct ethtool_ops gfar_ethtool_ops;
1347
1348#define MAX_FILER_CACHE_IDX (2*(MAX_FILER_IDX))
1349
1350#define RQFCR_PID_PRI_MASK 0xFFFFFFF8
1351#define RQFCR_PID_L4P_MASK 0xFFFFFF00
1352#define RQFCR_PID_VID_MASK 0xFFFFF000
1353#define RQFCR_PID_PORT_MASK 0xFFFF0000
1354#define RQFCR_PID_MAC_MASK 0xFF000000
1355
1356/* Represents a receive filer table entry */
1357struct gfar_filer_entry {
1358 u32 ctrl;
1359 u32 prop;
1360};
1361
1362
1363/* The 20 additional entries are a shadow for one extra element */
1364struct filer_table {
1365 u32 index;
1366 struct gfar_filer_entry fe[MAX_FILER_CACHE_IDX + 20];
1367};
1368
1369#endif /* __GIANFAR_H */