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Kumar Gala0bbaf062005-06-20 10:54:21 -05001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * drivers/net/gianfar.h
3 *
4 * Gianfar Ethernet Driver
5 * Driver for FEC on MPC8540 and TSEC on MPC8540/MPC8560
6 * Based on 8260_io/fcc_enet.c
7 *
8 * Author: Andy Fleming
Kumar Gala4c8d3d92005-11-13 16:06:30 -08009 * Maintainer: Kumar Gala
Linus Torvalds1da177e2005-04-16 15:20:36 -070010 *
11 * Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
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 * Still left to do:
19 * -Add support for module parameters
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 * -Add patch for ethtool phys id
21 */
22#ifndef __GIANFAR_H
23#define __GIANFAR_H
24
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#include <linux/kernel.h>
26#include <linux/sched.h>
27#include <linux/string.h>
28#include <linux/errno.h>
29#include <linux/slab.h>
30#include <linux/interrupt.h>
31#include <linux/init.h>
32#include <linux/delay.h>
33#include <linux/netdevice.h>
34#include <linux/etherdevice.h>
35#include <linux/skbuff.h>
36#include <linux/spinlock.h>
37#include <linux/mm.h>
Andy Flemingbb40dcb2005-09-23 22:54:21 -040038#include <linux/mii.h>
39#include <linux/phy.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
41#include <asm/io.h>
42#include <asm/irq.h>
43#include <asm/uaccess.h>
44#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070045#include <linux/crc32.h>
46#include <linux/workqueue.h>
47#include <linux/ethtool.h>
Andy Flemingbb40dcb2005-09-23 22:54:21 -040048#include <linux/fsl_devices.h>
49#include "gianfar_mii.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
51/* The maximum number of packets to be handled in one call of gfar_poll */
52#define GFAR_DEV_WEIGHT 64
53
Kumar Gala0bbaf062005-06-20 10:54:21 -050054/* Length for FCB */
55#define GMAC_FCB_LEN 8
56
57/* Default padding amount */
58#define DEFAULT_PADDING 2
59
Linus Torvalds1da177e2005-04-16 15:20:36 -070060/* Number of bytes to align the rx bufs to */
61#define RXBUF_ALIGNMENT 64
62
63/* The number of bytes which composes a unit for the purpose of
64 * allocating data buffers. ie-for any given MTU, the data buffer
65 * will be the next highest multiple of 512 bytes. */
66#define INCREMENTAL_BUFFER_SIZE 512
67
68
69#define MAC_ADDR_LEN 6
70
71#define PHY_INIT_TIMEOUT 100000
72#define GFAR_PHY_CHANGE_TIME 2
73
Andy Flemingbb40dcb2005-09-23 22:54:21 -040074#define DEVICE_NAME "%s: Gianfar Ethernet Controller Version 1.2, "
Linus Torvalds1da177e2005-04-16 15:20:36 -070075#define DRV_NAME "gfar-enet"
76extern const char gfar_driver_name[];
77extern const char gfar_driver_version[];
78
79/* These need to be powers of 2 for this driver */
80#ifdef CONFIG_GFAR_NAPI
81#define DEFAULT_TX_RING_SIZE 256
82#define DEFAULT_RX_RING_SIZE 256
83#else
84#define DEFAULT_TX_RING_SIZE 64
85#define DEFAULT_RX_RING_SIZE 64
86#endif
87
88#define GFAR_RX_MAX_RING_SIZE 256
89#define GFAR_TX_MAX_RING_SIZE 256
90
Andy Fleming7f7f5312005-11-11 12:38:59 -060091#define GFAR_MAX_FIFO_THRESHOLD 511
92#define GFAR_MAX_FIFO_STARVE 511
93#define GFAR_MAX_FIFO_STARVE_OFF 511
94
Linus Torvalds1da177e2005-04-16 15:20:36 -070095#define DEFAULT_RX_BUFFER_SIZE 1536
96#define TX_RING_MOD_MASK(size) (size-1)
97#define RX_RING_MOD_MASK(size) (size-1)
98#define JUMBO_BUFFER_SIZE 9728
99#define JUMBO_FRAME_SIZE 9600
100
Andy Fleming7f7f5312005-11-11 12:38:59 -0600101#define DEFAULT_FIFO_TX_THR 0x100
102#define DEFAULT_FIFO_TX_STARVE 0x40
103#define DEFAULT_FIFO_TX_STARVE_OFF 0x80
104#define DEFAULT_BD_STASH 1
105#define DEFAULT_STASH_LENGTH 64
106#define DEFAULT_STASH_INDEX 0
107
108/* The number of Exact Match registers */
109#define GFAR_EM_NUM 15
110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111/* Latency of interface clock in nanoseconds */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500112/* Interface clock latency , in this case, means the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 * time described by a value of 1 in the interrupt
114 * coalescing registers' time fields. Since those fields
115 * refer to the time it takes for 64 clocks to pass, the
116 * latencies are as such:
117 * GBIT = 125MHz => 8ns/clock => 8*64 ns / tick
118 * 100 = 25 MHz => 40ns/clock => 40*64 ns / tick
119 * 10 = 2.5 MHz => 400ns/clock => 400*64 ns / tick
120 */
121#define GFAR_GBIT_TIME 512
122#define GFAR_100_TIME 2560
123#define GFAR_10_TIME 25600
124
125#define DEFAULT_TX_COALESCE 1
126#define DEFAULT_TXCOUNT 16
Andy Fleming7f7f5312005-11-11 12:38:59 -0600127#define DEFAULT_TXTIME 4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128
129#define DEFAULT_RX_COALESCE 1
130#define DEFAULT_RXCOUNT 16
Andy Fleming7f7f5312005-11-11 12:38:59 -0600131#define DEFAULT_RXTIME 4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132
133#define TBIPA_VALUE 0x1f
134#define MIIMCFG_INIT_VALUE 0x00000007
135#define MIIMCFG_RESET 0x80000000
136#define MIIMIND_BUSY 0x00000001
137
Kapil Junejad3c12872007-05-11 18:25:11 -0500138/* TBI register addresses */
139#define MII_TBICON 0x11
140
141/* TBICON register bit fields */
142#define TBICON_CLK_SELECT 0x0020
143
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144/* MAC register bits */
145#define MACCFG1_SOFT_RESET 0x80000000
146#define MACCFG1_RESET_RX_MC 0x00080000
147#define MACCFG1_RESET_TX_MC 0x00040000
148#define MACCFG1_RESET_RX_FUN 0x00020000
149#define MACCFG1_RESET_TX_FUN 0x00010000
150#define MACCFG1_LOOPBACK 0x00000100
151#define MACCFG1_RX_FLOW 0x00000020
152#define MACCFG1_TX_FLOW 0x00000010
153#define MACCFG1_SYNCD_RX_EN 0x00000008
154#define MACCFG1_RX_EN 0x00000004
155#define MACCFG1_SYNCD_TX_EN 0x00000002
156#define MACCFG1_TX_EN 0x00000001
157
158#define MACCFG2_INIT_SETTINGS 0x00007205
159#define MACCFG2_FULL_DUPLEX 0x00000001
160#define MACCFG2_IF 0x00000300
161#define MACCFG2_MII 0x00000100
162#define MACCFG2_GMII 0x00000200
163#define MACCFG2_HUGEFRAME 0x00000020
164#define MACCFG2_LENGTHCHECK 0x00000010
165
166#define ECNTRL_INIT_SETTINGS 0x00001000
167#define ECNTRL_TBI_MODE 0x00000020
Andy Fleminge8a2b6a2006-12-01 12:01:06 -0600168#define ECNTRL_REDUCED_MODE 0x00000010
Andy Fleming7f7f5312005-11-11 12:38:59 -0600169#define ECNTRL_R100 0x00000008
Andy Fleminge8a2b6a2006-12-01 12:01:06 -0600170#define ECNTRL_REDUCED_MII_MODE 0x00000004
171#define ECNTRL_SGMII_MODE 0x00000002
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172
173#define MRBLR_INIT_SETTINGS DEFAULT_RX_BUFFER_SIZE
174
175#define MINFLR_INIT_SETTINGS 0x00000040
176
177/* Init to do tx snooping for buffers and descriptors */
178#define DMACTRL_INIT_SETTINGS 0x000000c3
179#define DMACTRL_GRS 0x00000010
180#define DMACTRL_GTS 0x00000008
181
182#define TSTAT_CLEAR_THALT 0x80000000
183
184/* Interrupt coalescing macros */
185#define IC_ICEN 0x80000000
186#define IC_ICFT_MASK 0x1fe00000
187#define IC_ICFT_SHIFT 21
188#define mk_ic_icft(x) \
189 (((unsigned int)x << IC_ICFT_SHIFT)&IC_ICFT_MASK)
190#define IC_ICTT_MASK 0x0000ffff
191#define mk_ic_ictt(x) (x&IC_ICTT_MASK)
192
193#define mk_ic_value(count, time) (IC_ICEN | \
194 mk_ic_icft(count) | \
195 mk_ic_ictt(time))
196
Kumar Gala0bbaf062005-06-20 10:54:21 -0500197#define RCTRL_PAL_MASK 0x001f0000
198#define RCTRL_VLEX 0x00002000
199#define RCTRL_FILREN 0x00001000
200#define RCTRL_GHTX 0x00000400
201#define RCTRL_IPCSEN 0x00000200
202#define RCTRL_TUCSEN 0x00000100
203#define RCTRL_PRSDEP_MASK 0x000000c0
204#define RCTRL_PRSDEP_INIT 0x000000c0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205#define RCTRL_PROM 0x00000008
Andy Fleming7f7f5312005-11-11 12:38:59 -0600206#define RCTRL_EMEN 0x00000002
Kumar Gala0bbaf062005-06-20 10:54:21 -0500207#define RCTRL_CHECKSUMMING (RCTRL_IPCSEN \
208 | RCTRL_TUCSEN | RCTRL_PRSDEP_INIT)
209#define RCTRL_EXTHASH (RCTRL_GHTX)
210#define RCTRL_VLAN (RCTRL_PRSDEP_INIT)
Andy Fleming7f7f5312005-11-11 12:38:59 -0600211#define RCTRL_PADDING(x) ((x << 16) & RCTRL_PAL_MASK)
Kumar Gala0bbaf062005-06-20 10:54:21 -0500212
213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214#define RSTAT_CLEAR_RHALT 0x00800000
215
Kumar Gala0bbaf062005-06-20 10:54:21 -0500216#define TCTRL_IPCSEN 0x00004000
217#define TCTRL_TUCSEN 0x00002000
218#define TCTRL_VLINS 0x00001000
219#define TCTRL_INIT_CSUM (TCTRL_TUCSEN | TCTRL_IPCSEN)
220
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221#define IEVENT_INIT_CLEAR 0xffffffff
222#define IEVENT_BABR 0x80000000
223#define IEVENT_RXC 0x40000000
224#define IEVENT_BSY 0x20000000
225#define IEVENT_EBERR 0x10000000
226#define IEVENT_MSRO 0x04000000
227#define IEVENT_GTSC 0x02000000
228#define IEVENT_BABT 0x01000000
229#define IEVENT_TXC 0x00800000
230#define IEVENT_TXE 0x00400000
231#define IEVENT_TXB 0x00200000
232#define IEVENT_TXF 0x00100000
233#define IEVENT_LC 0x00040000
234#define IEVENT_CRL 0x00020000
235#define IEVENT_XFUN 0x00010000
236#define IEVENT_RXB0 0x00008000
237#define IEVENT_GRSC 0x00000100
238#define IEVENT_RXF0 0x00000080
Kumar Gala0bbaf062005-06-20 10:54:21 -0500239#define IEVENT_FIR 0x00000008
240#define IEVENT_FIQ 0x00000004
241#define IEVENT_DPE 0x00000002
242#define IEVENT_PERR 0x00000001
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243#define IEVENT_RX_MASK (IEVENT_RXB0 | IEVENT_RXF0)
244#define IEVENT_TX_MASK (IEVENT_TXB | IEVENT_TXF)
245#define IEVENT_ERR_MASK \
246(IEVENT_RXC | IEVENT_BSY | IEVENT_EBERR | IEVENT_MSRO | \
247 IEVENT_BABT | IEVENT_TXC | IEVENT_TXE | IEVENT_LC \
Kumar Gala0bbaf062005-06-20 10:54:21 -0500248 | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249
250#define IMASK_INIT_CLEAR 0x00000000
251#define IMASK_BABR 0x80000000
252#define IMASK_RXC 0x40000000
253#define IMASK_BSY 0x20000000
254#define IMASK_EBERR 0x10000000
255#define IMASK_MSRO 0x04000000
256#define IMASK_GRSC 0x02000000
257#define IMASK_BABT 0x01000000
258#define IMASK_TXC 0x00800000
259#define IMASK_TXEEN 0x00400000
260#define IMASK_TXBEN 0x00200000
261#define IMASK_TXFEN 0x00100000
262#define IMASK_LC 0x00040000
263#define IMASK_CRL 0x00020000
264#define IMASK_XFUN 0x00010000
265#define IMASK_RXB0 0x00008000
266#define IMASK_GTSC 0x00000100
267#define IMASK_RXFEN0 0x00000080
Kumar Gala0bbaf062005-06-20 10:54:21 -0500268#define IMASK_FIR 0x00000008
269#define IMASK_FIQ 0x00000004
270#define IMASK_DPE 0x00000002
271#define IMASK_PERR 0x00000001
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272#define IMASK_RX_DISABLED ~(IMASK_RXFEN0 | IMASK_BSY)
273#define IMASK_DEFAULT (IMASK_TXEEN | IMASK_TXFEN | IMASK_TXBEN | \
274 IMASK_RXFEN0 | IMASK_BSY | IMASK_EBERR | IMASK_BABR | \
Kumar Gala0bbaf062005-06-20 10:54:21 -0500275 IMASK_XFUN | IMASK_RXC | IMASK_BABT | IMASK_DPE \
276 | IMASK_PERR)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277
Andy Fleming7f7f5312005-11-11 12:38:59 -0600278/* Fifo management */
279#define FIFO_TX_THR_MASK 0x01ff
280#define FIFO_TX_STARVE_MASK 0x01ff
281#define FIFO_TX_STARVE_OFF_MASK 0x01ff
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282
283/* Attribute fields */
284
285/* This enables rx snooping for buffers and descriptors */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286#define ATTR_BDSTASH 0x00000800
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288#define ATTR_BUFSTASH 0x00004000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289
290#define ATTR_SNOOPING 0x000000c0
Andy Fleming7f7f5312005-11-11 12:38:59 -0600291#define ATTR_INIT_SETTINGS ATTR_SNOOPING
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292
293#define ATTRELI_INIT_SETTINGS 0x0
Andy Fleming7f7f5312005-11-11 12:38:59 -0600294#define ATTRELI_EL_MASK 0x3fff0000
295#define ATTRELI_EL(x) (x << 16)
296#define ATTRELI_EI_MASK 0x00003fff
297#define ATTRELI_EI(x) (x)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298
299
300/* TxBD status field bits */
301#define TXBD_READY 0x8000
302#define TXBD_PADCRC 0x4000
303#define TXBD_WRAP 0x2000
304#define TXBD_INTERRUPT 0x1000
305#define TXBD_LAST 0x0800
306#define TXBD_CRC 0x0400
307#define TXBD_DEF 0x0200
308#define TXBD_HUGEFRAME 0x0080
309#define TXBD_LATECOLLISION 0x0080
310#define TXBD_RETRYLIMIT 0x0040
311#define TXBD_RETRYCOUNTMASK 0x003c
312#define TXBD_UNDERRUN 0x0002
Kumar Gala0bbaf062005-06-20 10:54:21 -0500313#define TXBD_TOE 0x0002
314
315/* Tx FCB param bits */
316#define TXFCB_VLN 0x80
317#define TXFCB_IP 0x40
318#define TXFCB_IP6 0x20
319#define TXFCB_TUP 0x10
320#define TXFCB_UDP 0x08
321#define TXFCB_CIP 0x04
322#define TXFCB_CTU 0x02
323#define TXFCB_NPH 0x01
324#define TXFCB_DEFAULT (TXFCB_IP|TXFCB_TUP|TXFCB_CTU|TXFCB_NPH)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325
326/* RxBD status field bits */
327#define RXBD_EMPTY 0x8000
328#define RXBD_RO1 0x4000
329#define RXBD_WRAP 0x2000
330#define RXBD_INTERRUPT 0x1000
331#define RXBD_LAST 0x0800
332#define RXBD_FIRST 0x0400
333#define RXBD_MISS 0x0100
334#define RXBD_BROADCAST 0x0080
335#define RXBD_MULTICAST 0x0040
336#define RXBD_LARGE 0x0020
337#define RXBD_NONOCTET 0x0010
338#define RXBD_SHORT 0x0008
339#define RXBD_CRCERR 0x0004
340#define RXBD_OVERRUN 0x0002
341#define RXBD_TRUNCATED 0x0001
342#define RXBD_STATS 0x01ff
343
Kumar Gala0bbaf062005-06-20 10:54:21 -0500344/* Rx FCB status field bits */
345#define RXFCB_VLN 0x8000
346#define RXFCB_IP 0x4000
347#define RXFCB_IP6 0x2000
348#define RXFCB_TUP 0x1000
349#define RXFCB_CIP 0x0800
350#define RXFCB_CTU 0x0400
351#define RXFCB_EIP 0x0200
352#define RXFCB_ETU 0x0100
Andy Fleming7f7f5312005-11-11 12:38:59 -0600353#define RXFCB_CSUM_MASK 0x0f00
Kumar Gala0bbaf062005-06-20 10:54:21 -0500354#define RXFCB_PERR_MASK 0x000c
355#define RXFCB_PERR_BADL3 0x0008
356
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357struct txbd8
358{
359 u16 status; /* Status Fields */
360 u16 length; /* Buffer length */
361 u32 bufPtr; /* Buffer Pointer */
362};
363
Kumar Gala0bbaf062005-06-20 10:54:21 -0500364struct txfcb {
Andy Fleming7f7f5312005-11-11 12:38:59 -0600365 u8 flags;
Kumar Gala0bbaf062005-06-20 10:54:21 -0500366 u8 reserved;
367 u8 l4os; /* Level 4 Header Offset */
368 u8 l3os; /* Level 3 Header Offset */
369 u16 phcs; /* Pseudo-header Checksum */
370 u16 vlctl; /* VLAN control word */
371};
372
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373struct rxbd8
374{
375 u16 status; /* Status Fields */
376 u16 length; /* Buffer Length */
377 u32 bufPtr; /* Buffer Pointer */
378};
379
Kumar Gala0bbaf062005-06-20 10:54:21 -0500380struct rxfcb {
Andy Fleming7f7f5312005-11-11 12:38:59 -0600381 u16 flags;
Kumar Gala0bbaf062005-06-20 10:54:21 -0500382 u8 rq; /* Receive Queue index */
383 u8 pro; /* Layer 4 Protocol */
384 u16 reserved;
385 u16 vlctl; /* VLAN control word */
386};
387
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388struct rmon_mib
389{
390 u32 tr64; /* 0x.680 - Transmit and Receive 64-byte Frame Counter */
391 u32 tr127; /* 0x.684 - Transmit and Receive 65-127 byte Frame Counter */
392 u32 tr255; /* 0x.688 - Transmit and Receive 128-255 byte Frame Counter */
393 u32 tr511; /* 0x.68c - Transmit and Receive 256-511 byte Frame Counter */
394 u32 tr1k; /* 0x.690 - Transmit and Receive 512-1023 byte Frame Counter */
395 u32 trmax; /* 0x.694 - Transmit and Receive 1024-1518 byte Frame Counter */
396 u32 trmgv; /* 0x.698 - Transmit and Receive 1519-1522 byte Good VLAN Frame */
397 u32 rbyt; /* 0x.69c - Receive Byte Counter */
398 u32 rpkt; /* 0x.6a0 - Receive Packet Counter */
399 u32 rfcs; /* 0x.6a4 - Receive FCS Error Counter */
400 u32 rmca; /* 0x.6a8 - Receive Multicast Packet Counter */
401 u32 rbca; /* 0x.6ac - Receive Broadcast Packet Counter */
402 u32 rxcf; /* 0x.6b0 - Receive Control Frame Packet Counter */
403 u32 rxpf; /* 0x.6b4 - Receive Pause Frame Packet Counter */
404 u32 rxuo; /* 0x.6b8 - Receive Unknown OP Code Counter */
405 u32 raln; /* 0x.6bc - Receive Alignment Error Counter */
406 u32 rflr; /* 0x.6c0 - Receive Frame Length Error Counter */
407 u32 rcde; /* 0x.6c4 - Receive Code Error Counter */
408 u32 rcse; /* 0x.6c8 - Receive Carrier Sense Error Counter */
409 u32 rund; /* 0x.6cc - Receive Undersize Packet Counter */
410 u32 rovr; /* 0x.6d0 - Receive Oversize Packet Counter */
411 u32 rfrg; /* 0x.6d4 - Receive Fragments Counter */
412 u32 rjbr; /* 0x.6d8 - Receive Jabber Counter */
413 u32 rdrp; /* 0x.6dc - Receive Drop Counter */
414 u32 tbyt; /* 0x.6e0 - Transmit Byte Counter Counter */
415 u32 tpkt; /* 0x.6e4 - Transmit Packet Counter */
416 u32 tmca; /* 0x.6e8 - Transmit Multicast Packet Counter */
417 u32 tbca; /* 0x.6ec - Transmit Broadcast Packet Counter */
418 u32 txpf; /* 0x.6f0 - Transmit Pause Control Frame Counter */
419 u32 tdfr; /* 0x.6f4 - Transmit Deferral Packet Counter */
420 u32 tedf; /* 0x.6f8 - Transmit Excessive Deferral Packet Counter */
421 u32 tscl; /* 0x.6fc - Transmit Single Collision Packet Counter */
422 u32 tmcl; /* 0x.700 - Transmit Multiple Collision Packet Counter */
423 u32 tlcl; /* 0x.704 - Transmit Late Collision Packet Counter */
424 u32 txcl; /* 0x.708 - Transmit Excessive Collision Packet Counter */
425 u32 tncl; /* 0x.70c - Transmit Total Collision Counter */
426 u8 res1[4];
427 u32 tdrp; /* 0x.714 - Transmit Drop Frame Counter */
428 u32 tjbr; /* 0x.718 - Transmit Jabber Frame Counter */
429 u32 tfcs; /* 0x.71c - Transmit FCS Error Counter */
430 u32 txcf; /* 0x.720 - Transmit Control Frame Counter */
431 u32 tovr; /* 0x.724 - Transmit Oversize Frame Counter */
432 u32 tund; /* 0x.728 - Transmit Undersize Frame Counter */
433 u32 tfrg; /* 0x.72c - Transmit Fragments Frame Counter */
434 u32 car1; /* 0x.730 - Carry Register One */
435 u32 car2; /* 0x.734 - Carry Register Two */
436 u32 cam1; /* 0x.738 - Carry Mask Register One */
437 u32 cam2; /* 0x.73c - Carry Mask Register Two */
438};
439
440struct gfar_extra_stats {
441 u64 kernel_dropped;
442 u64 rx_large;
443 u64 rx_short;
444 u64 rx_nonoctet;
445 u64 rx_crcerr;
446 u64 rx_overrun;
447 u64 rx_bsy;
448 u64 rx_babr;
449 u64 rx_trunc;
450 u64 eberr;
451 u64 tx_babt;
452 u64 tx_underrun;
453 u64 rx_skbmissing;
454 u64 tx_timeout;
455};
456
457#define GFAR_RMON_LEN ((sizeof(struct rmon_mib) - 16)/sizeof(u32))
458#define GFAR_EXTRA_STATS_LEN (sizeof(struct gfar_extra_stats)/sizeof(u64))
459
460/* Number of stats in the stats structure (ignore car and cam regs)*/
461#define GFAR_STATS_LEN (GFAR_RMON_LEN + GFAR_EXTRA_STATS_LEN)
462
463#define GFAR_INFOSTR_LEN 32
464
465struct gfar_stats {
466 u64 extra[GFAR_EXTRA_STATS_LEN];
467 u64 rmon[GFAR_RMON_LEN];
468};
469
470
471struct gfar {
Kumar Gala0bbaf062005-06-20 10:54:21 -0500472 u32 tsec_id; /* 0x.000 - Controller ID register */
473 u8 res1[12];
474 u32 ievent; /* 0x.010 - Interrupt Event Register */
475 u32 imask; /* 0x.014 - Interrupt Mask Register */
476 u32 edis; /* 0x.018 - Error Disabled Register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477 u8 res2[4];
Kumar Gala0bbaf062005-06-20 10:54:21 -0500478 u32 ecntrl; /* 0x.020 - Ethernet Control Register */
479 u32 minflr; /* 0x.024 - Minimum Frame Length Register */
480 u32 ptv; /* 0x.028 - Pause Time Value Register */
481 u32 dmactrl; /* 0x.02c - DMA Control Register */
482 u32 tbipa; /* 0x.030 - TBI PHY Address Register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 u8 res3[88];
Kumar Gala0bbaf062005-06-20 10:54:21 -0500484 u32 fifo_tx_thr; /* 0x.08c - FIFO transmit threshold register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485 u8 res4[8];
Kumar Gala0bbaf062005-06-20 10:54:21 -0500486 u32 fifo_tx_starve; /* 0x.098 - FIFO transmit starve register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487 u32 fifo_tx_starve_shutoff; /* 0x.09c - FIFO transmit starve shutoff register */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500488 u8 res5[4];
489 u32 fifo_rx_pause; /* 0x.0a4 - FIFO receive pause threshold register */
490 u32 fifo_rx_alarm; /* 0x.0a8 - FIFO receive alarm threshold register */
491 u8 res6[84];
492 u32 tctrl; /* 0x.100 - Transmit Control Register */
493 u32 tstat; /* 0x.104 - Transmit Status Register */
494 u32 dfvlan; /* 0x.108 - Default VLAN Control word */
495 u32 tbdlen; /* 0x.10c - Transmit Buffer Descriptor Data Length Register */
496 u32 txic; /* 0x.110 - Transmit Interrupt Coalescing Configuration Register */
497 u32 tqueue; /* 0x.114 - Transmit queue control register */
498 u8 res7[40];
499 u32 tr03wt; /* 0x.140 - TxBD Rings 0-3 round-robin weightings */
500 u32 tr47wt; /* 0x.144 - TxBD Rings 4-7 round-robin weightings */
501 u8 res8[52];
502 u32 tbdbph; /* 0x.17c - Tx data buffer pointer high */
503 u8 res9a[4];
504 u32 tbptr0; /* 0x.184 - TxBD Pointer for ring 0 */
505 u8 res9b[4];
506 u32 tbptr1; /* 0x.18c - TxBD Pointer for ring 1 */
507 u8 res9c[4];
508 u32 tbptr2; /* 0x.194 - TxBD Pointer for ring 2 */
509 u8 res9d[4];
510 u32 tbptr3; /* 0x.19c - TxBD Pointer for ring 3 */
511 u8 res9e[4];
512 u32 tbptr4; /* 0x.1a4 - TxBD Pointer for ring 4 */
513 u8 res9f[4];
514 u32 tbptr5; /* 0x.1ac - TxBD Pointer for ring 5 */
515 u8 res9g[4];
516 u32 tbptr6; /* 0x.1b4 - TxBD Pointer for ring 6 */
517 u8 res9h[4];
518 u32 tbptr7; /* 0x.1bc - TxBD Pointer for ring 7 */
519 u8 res9[64];
520 u32 tbaseh; /* 0x.200 - TxBD base address high */
521 u32 tbase0; /* 0x.204 - TxBD Base Address of ring 0 */
522 u8 res10a[4];
523 u32 tbase1; /* 0x.20c - TxBD Base Address of ring 1 */
524 u8 res10b[4];
525 u32 tbase2; /* 0x.214 - TxBD Base Address of ring 2 */
526 u8 res10c[4];
527 u32 tbase3; /* 0x.21c - TxBD Base Address of ring 3 */
528 u8 res10d[4];
529 u32 tbase4; /* 0x.224 - TxBD Base Address of ring 4 */
530 u8 res10e[4];
531 u32 tbase5; /* 0x.22c - TxBD Base Address of ring 5 */
532 u8 res10f[4];
533 u32 tbase6; /* 0x.234 - TxBD Base Address of ring 6 */
534 u8 res10g[4];
535 u32 tbase7; /* 0x.23c - TxBD Base Address of ring 7 */
536 u8 res10[192];
537 u32 rctrl; /* 0x.300 - Receive Control Register */
538 u32 rstat; /* 0x.304 - Receive Status Register */
539 u8 res12[8];
540 u32 rxic; /* 0x.310 - Receive Interrupt Coalescing Configuration Register */
541 u32 rqueue; /* 0x.314 - Receive queue control register */
542 u8 res13[24];
543 u32 rbifx; /* 0x.330 - Receive bit field extract control register */
544 u32 rqfar; /* 0x.334 - Receive queue filing table address register */
545 u32 rqfcr; /* 0x.338 - Receive queue filing table control register */
546 u32 rqfpr; /* 0x.33c - Receive queue filing table property register */
547 u32 mrblr; /* 0x.340 - Maximum Receive Buffer Length Register */
548 u8 res14[56];
549 u32 rbdbph; /* 0x.37c - Rx data buffer pointer high */
550 u8 res15a[4];
551 u32 rbptr0; /* 0x.384 - RxBD pointer for ring 0 */
552 u8 res15b[4];
553 u32 rbptr1; /* 0x.38c - RxBD pointer for ring 1 */
554 u8 res15c[4];
555 u32 rbptr2; /* 0x.394 - RxBD pointer for ring 2 */
556 u8 res15d[4];
557 u32 rbptr3; /* 0x.39c - RxBD pointer for ring 3 */
558 u8 res15e[4];
559 u32 rbptr4; /* 0x.3a4 - RxBD pointer for ring 4 */
560 u8 res15f[4];
561 u32 rbptr5; /* 0x.3ac - RxBD pointer for ring 5 */
562 u8 res15g[4];
563 u32 rbptr6; /* 0x.3b4 - RxBD pointer for ring 6 */
564 u8 res15h[4];
565 u32 rbptr7; /* 0x.3bc - RxBD pointer for ring 7 */
566 u8 res16[64];
567 u32 rbaseh; /* 0x.400 - RxBD base address high */
568 u32 rbase0; /* 0x.404 - RxBD base address of ring 0 */
569 u8 res17a[4];
570 u32 rbase1; /* 0x.40c - RxBD base address of ring 1 */
571 u8 res17b[4];
572 u32 rbase2; /* 0x.414 - RxBD base address of ring 2 */
573 u8 res17c[4];
574 u32 rbase3; /* 0x.41c - RxBD base address of ring 3 */
575 u8 res17d[4];
576 u32 rbase4; /* 0x.424 - RxBD base address of ring 4 */
577 u8 res17e[4];
578 u32 rbase5; /* 0x.42c - RxBD base address of ring 5 */
579 u8 res17f[4];
580 u32 rbase6; /* 0x.434 - RxBD base address of ring 6 */
581 u8 res17g[4];
582 u32 rbase7; /* 0x.43c - RxBD base address of ring 7 */
583 u8 res17[192];
584 u32 maccfg1; /* 0x.500 - MAC Configuration 1 Register */
585 u32 maccfg2; /* 0x.504 - MAC Configuration 2 Register */
586 u32 ipgifg; /* 0x.508 - Inter Packet Gap/Inter Frame Gap Register */
587 u32 hafdup; /* 0x.50c - Half Duplex Register */
588 u32 maxfrm; /* 0x.510 - Maximum Frame Length Register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589 u8 res18[12];
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400590 u8 gfar_mii_regs[24]; /* See gianfar_phy.h */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591 u8 res19[4];
Kumar Gala0bbaf062005-06-20 10:54:21 -0500592 u32 ifstat; /* 0x.53c - Interface Status Register */
593 u32 macstnaddr1; /* 0x.540 - Station Address Part 1 Register */
594 u32 macstnaddr2; /* 0x.544 - Station Address Part 2 Register */
595 u32 mac01addr1; /* 0x.548 - MAC exact match address 1, part 1 */
596 u32 mac01addr2; /* 0x.54c - MAC exact match address 1, part 2 */
597 u32 mac02addr1; /* 0x.550 - MAC exact match address 2, part 1 */
598 u32 mac02addr2; /* 0x.554 - MAC exact match address 2, part 2 */
599 u32 mac03addr1; /* 0x.558 - MAC exact match address 3, part 1 */
600 u32 mac03addr2; /* 0x.55c - MAC exact match address 3, part 2 */
601 u32 mac04addr1; /* 0x.560 - MAC exact match address 4, part 1 */
602 u32 mac04addr2; /* 0x.564 - MAC exact match address 4, part 2 */
603 u32 mac05addr1; /* 0x.568 - MAC exact match address 5, part 1 */
604 u32 mac05addr2; /* 0x.56c - MAC exact match address 5, part 2 */
605 u32 mac06addr1; /* 0x.570 - MAC exact match address 6, part 1 */
606 u32 mac06addr2; /* 0x.574 - MAC exact match address 6, part 2 */
607 u32 mac07addr1; /* 0x.578 - MAC exact match address 7, part 1 */
608 u32 mac07addr2; /* 0x.57c - MAC exact match address 7, part 2 */
609 u32 mac08addr1; /* 0x.580 - MAC exact match address 8, part 1 */
610 u32 mac08addr2; /* 0x.584 - MAC exact match address 8, part 2 */
611 u32 mac09addr1; /* 0x.588 - MAC exact match address 9, part 1 */
612 u32 mac09addr2; /* 0x.58c - MAC exact match address 9, part 2 */
613 u32 mac10addr1; /* 0x.590 - MAC exact match address 10, part 1*/
614 u32 mac10addr2; /* 0x.594 - MAC exact match address 10, part 2*/
615 u32 mac11addr1; /* 0x.598 - MAC exact match address 11, part 1*/
616 u32 mac11addr2; /* 0x.59c - MAC exact match address 11, part 2*/
617 u32 mac12addr1; /* 0x.5a0 - MAC exact match address 12, part 1*/
618 u32 mac12addr2; /* 0x.5a4 - MAC exact match address 12, part 2*/
619 u32 mac13addr1; /* 0x.5a8 - MAC exact match address 13, part 1*/
620 u32 mac13addr2; /* 0x.5ac - MAC exact match address 13, part 2*/
621 u32 mac14addr1; /* 0x.5b0 - MAC exact match address 14, part 1*/
622 u32 mac14addr2; /* 0x.5b4 - MAC exact match address 14, part 2*/
623 u32 mac15addr1; /* 0x.5b8 - MAC exact match address 15, part 1*/
624 u32 mac15addr2; /* 0x.5bc - MAC exact match address 15, part 2*/
625 u8 res20[192];
626 struct rmon_mib rmon; /* 0x.680-0x.73c */
627 u32 rrej; /* 0x.740 - Receive filer rejected packet counter */
628 u8 res21[188];
629 u32 igaddr0; /* 0x.800 - Indivdual/Group address register 0*/
630 u32 igaddr1; /* 0x.804 - Indivdual/Group address register 1*/
631 u32 igaddr2; /* 0x.808 - Indivdual/Group address register 2*/
632 u32 igaddr3; /* 0x.80c - Indivdual/Group address register 3*/
633 u32 igaddr4; /* 0x.810 - Indivdual/Group address register 4*/
634 u32 igaddr5; /* 0x.814 - Indivdual/Group address register 5*/
635 u32 igaddr6; /* 0x.818 - Indivdual/Group address register 6*/
636 u32 igaddr7; /* 0x.81c - Indivdual/Group address register 7*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 u8 res22[96];
Kumar Gala0bbaf062005-06-20 10:54:21 -0500638 u32 gaddr0; /* 0x.880 - Group address register 0 */
639 u32 gaddr1; /* 0x.884 - Group address register 1 */
640 u32 gaddr2; /* 0x.888 - Group address register 2 */
641 u32 gaddr3; /* 0x.88c - Group address register 3 */
642 u32 gaddr4; /* 0x.890 - Group address register 4 */
643 u32 gaddr5; /* 0x.894 - Group address register 5 */
644 u32 gaddr6; /* 0x.898 - Group address register 6 */
645 u32 gaddr7; /* 0x.89c - Group address register 7 */
646 u8 res23a[352];
647 u32 fifocfg; /* 0x.a00 - FIFO interface config register */
648 u8 res23b[252];
649 u8 res23c[248];
650 u32 attr; /* 0x.bf8 - Attributes Register */
651 u32 attreli; /* 0x.bfc - Attributes Extract Length and Extract Index Register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652 u8 res24[1024];
653
654};
655
656/* Struct stolen almost completely (and shamelessly) from the FCC enet source
657 * (Ok, that's not so true anymore, but there is a family resemblence)
658 * The GFAR buffer descriptors track the ring buffers. The rx_bd_base
659 * and tx_bd_base always point to the currently available buffer.
660 * The dirty_tx tracks the current buffer that is being sent by the
661 * controller. The cur_tx and dirty_tx are equal under both completely
662 * empty and completely full conditions. The empty/ready indicator in
663 * the buffer descriptor determines the actual condition.
664 */
665struct gfar_private {
Andy Flemingfef61082006-04-20 16:44:29 -0500666 /* Fields controlled by TX lock */
667 spinlock_t txlock;
668
669 /* Pointer to the array of skbuffs */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 struct sk_buff ** tx_skbuff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671
Andy Flemingfef61082006-04-20 16:44:29 -0500672 /* next free skb in the array */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 u16 skb_curtx;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674
Andy Flemingfef61082006-04-20 16:44:29 -0500675 /* First skb in line to be transmitted */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676 u16 skb_dirtytx;
677
678 /* Configuration info for the coalescing features */
679 unsigned char txcoalescing;
680 unsigned short txcount;
681 unsigned short txtime;
Andy Flemingfef61082006-04-20 16:44:29 -0500682
683 /* Buffer descriptor pointers */
684 struct txbd8 *tx_bd_base; /* First tx buffer descriptor */
685 struct txbd8 *cur_tx; /* Next free ring entry */
686 struct txbd8 *dirty_tx; /* First buffer in line
687 to be transmitted */
688 unsigned int tx_ring_size;
689
690 /* RX Locked fields */
691 spinlock_t rxlock;
692
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700693 struct net_device *dev;
694 struct napi_struct napi;
695
Andy Flemingfef61082006-04-20 16:44:29 -0500696 /* skb array and index */
697 struct sk_buff ** rx_skbuff;
698 u16 skb_currx;
699
700 /* RX Coalescing values */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701 unsigned char rxcoalescing;
702 unsigned short rxcount;
703 unsigned short rxtime;
704
Andy Flemingfef61082006-04-20 16:44:29 -0500705 struct rxbd8 *rx_bd_base; /* First Rx buffers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 struct rxbd8 *cur_rx; /* Next free rx ring entry */
Andy Flemingfef61082006-04-20 16:44:29 -0500707
708 /* RX parameters */
709 unsigned int rx_ring_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710 unsigned int rx_buffer_size;
711 unsigned int rx_stash_size;
Andy Fleming7f7f5312005-11-11 12:38:59 -0600712 unsigned int rx_stash_index;
Andy Flemingfef61082006-04-20 16:44:29 -0500713
714 struct vlan_group *vlgrp;
715
716 /* Unprotected fields */
717 /* Pointer to the GFAR memory mapped Registers */
718 struct gfar __iomem *regs;
719
720 /* Hash registers and their width */
721 u32 __iomem *hash_regs[16];
722 int hash_width;
723
724 /* global parameters */
Andy Fleming7f7f5312005-11-11 12:38:59 -0600725 unsigned int fifo_threshold;
726 unsigned int fifo_starve;
727 unsigned int fifo_starve_off;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728
Kumar Gala0bbaf062005-06-20 10:54:21 -0500729 unsigned char vlan_enable:1,
730 rx_csum_enable:1,
Andy Fleming7f7f5312005-11-11 12:38:59 -0600731 extended_hash:1,
732 bd_stash_en:1;
Kumar Gala0bbaf062005-06-20 10:54:21 -0500733 unsigned short padding;
Andy Flemingfef61082006-04-20 16:44:29 -0500734
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735 unsigned int interruptTransmit;
736 unsigned int interruptReceive;
737 unsigned int interruptError;
Andy Flemingfef61082006-04-20 16:44:29 -0500738
739 /* info structure initialized by platform code */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 struct gianfar_platform_data *einfo;
741
Andy Flemingfef61082006-04-20 16:44:29 -0500742 /* PHY stuff */
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400743 struct phy_device *phydev;
744 struct mii_bus *mii_bus;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745 int oldspeed;
746 int oldduplex;
747 int oldlink;
Kumar Gala0bbaf062005-06-20 10:54:21 -0500748
749 uint32_t msg_enable;
Andy Flemingfef61082006-04-20 16:44:29 -0500750
751 /* Network Statistics */
752 struct net_device_stats stats;
753 struct gfar_extra_stats extra_stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754};
755
Kumar Galacc8c6e32006-02-01 15:18:03 -0600756static inline u32 gfar_read(volatile unsigned __iomem *addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757{
758 u32 val;
759 val = in_be32(addr);
760 return val;
761}
762
Kumar Galacc8c6e32006-02-01 15:18:03 -0600763static inline void gfar_write(volatile unsigned __iomem *addr, u32 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764{
765 out_be32(addr, val);
766}
767
David Howells7d12e782006-10-05 14:55:46 +0100768extern irqreturn_t gfar_receive(int irq, void *dev_id);
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400769extern int startup_gfar(struct net_device *dev);
770extern void stop_gfar(struct net_device *dev);
771extern void gfar_halt(struct net_device *dev);
772extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev,
773 int enable, u32 regnum, u32 read);
Andy Fleming7f7f5312005-11-11 12:38:59 -0600774void gfar_init_sysfs(struct net_device *dev);
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400775
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776#endif /* __GIANFAR_H */