2 * drivers/net/gianfar.h
4 * Gianfar Ethernet Driver
5 * Driver for FEC on MPC8540 and TSEC on MPC8540/MPC8560
6 * Based on 8260_io/fcc_enet.c
9 * Maintainer: Kumar Gala
11 * Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
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.
19 * -Add support for module parameters
20 * -Add patch for ethtool phys id
25 #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>
38 #include <linux/mii.h>
39 #include <linux/phy.h>
43 #include <asm/uaccess.h>
44 #include <linux/module.h>
45 #include <linux/crc32.h>
46 #include <linux/workqueue.h>
47 #include <linux/ethtool.h>
48 #include <linux/fsl_devices.h>
50 /* The maximum number of packets to be handled in one call of gfar_poll */
51 #define GFAR_DEV_WEIGHT 64
54 #define GMAC_FCB_LEN 8
56 /* Default padding amount */
57 #define DEFAULT_PADDING 2
59 /* Number of bytes to align the rx bufs to */
60 #define RXBUF_ALIGNMENT 64
62 /* The number of bytes which composes a unit for the purpose of
63 * allocating data buffers. ie-for any given MTU, the data buffer
64 * will be the next highest multiple of 512 bytes. */
65 #define INCREMENTAL_BUFFER_SIZE 512
68 #define MAC_ADDR_LEN 6
70 #define PHY_INIT_TIMEOUT 100000
71 #define GFAR_PHY_CHANGE_TIME 2
73 #define DEVICE_NAME "%s: Gianfar Ethernet Controller Version 1.2, "
74 #define DRV_NAME "gfar-enet"
75 extern const char gfar_driver_name[];
76 extern const char gfar_driver_version[];
78 /* These need to be powers of 2 for this driver */
79 #define DEFAULT_TX_RING_SIZE 256
80 #define DEFAULT_RX_RING_SIZE 256
82 #define GFAR_RX_MAX_RING_SIZE 256
83 #define GFAR_TX_MAX_RING_SIZE 256
85 #define GFAR_MAX_FIFO_THRESHOLD 511
86 #define GFAR_MAX_FIFO_STARVE 511
87 #define GFAR_MAX_FIFO_STARVE_OFF 511
89 #define DEFAULT_RX_BUFFER_SIZE 1536
90 #define TX_RING_MOD_MASK(size) (size-1)
91 #define RX_RING_MOD_MASK(size) (size-1)
92 #define JUMBO_BUFFER_SIZE 9728
93 #define JUMBO_FRAME_SIZE 9600
95 #define DEFAULT_FIFO_TX_THR 0x100
96 #define DEFAULT_FIFO_TX_STARVE 0x40
97 #define DEFAULT_FIFO_TX_STARVE_OFF 0x80
98 #define DEFAULT_BD_STASH 1
99 #define DEFAULT_STASH_LENGTH 96
100 #define DEFAULT_STASH_INDEX 0
102 /* The number of Exact Match registers */
103 #define GFAR_EM_NUM 15
105 /* Latency of interface clock in nanoseconds */
106 /* Interface clock latency , in this case, means the
107 * time described by a value of 1 in the interrupt
108 * coalescing registers' time fields. Since those fields
109 * refer to the time it takes for 64 clocks to pass, the
110 * latencies are as such:
111 * GBIT = 125MHz => 8ns/clock => 8*64 ns / tick
112 * 100 = 25 MHz => 40ns/clock => 40*64 ns / tick
113 * 10 = 2.5 MHz => 400ns/clock => 400*64 ns / tick
115 #define GFAR_GBIT_TIME 512
116 #define GFAR_100_TIME 2560
117 #define GFAR_10_TIME 25600
119 #define DEFAULT_TX_COALESCE 1
120 #define DEFAULT_TXCOUNT 16
121 #define DEFAULT_TXTIME 21
123 #define DEFAULT_RXTIME 21
125 #define DEFAULT_RX_COALESCE 0
126 #define DEFAULT_RXCOUNT 0
128 #define GFAR_SUPPORTED (SUPPORTED_10baseT_Half \
129 | SUPPORTED_10baseT_Full \
130 | SUPPORTED_100baseT_Half \
131 | SUPPORTED_100baseT_Full \
132 | SUPPORTED_Autoneg \
135 /* TBI register addresses */
136 #define MII_TBICON 0x11
138 /* TBICON register bit fields */
139 #define TBICON_CLK_SELECT 0x0020
141 /* MAC register bits */
142 #define MACCFG1_SOFT_RESET 0x80000000
143 #define MACCFG1_RESET_RX_MC 0x00080000
144 #define MACCFG1_RESET_TX_MC 0x00040000
145 #define MACCFG1_RESET_RX_FUN 0x00020000
146 #define MACCFG1_RESET_TX_FUN 0x00010000
147 #define MACCFG1_LOOPBACK 0x00000100
148 #define MACCFG1_RX_FLOW 0x00000020
149 #define MACCFG1_TX_FLOW 0x00000010
150 #define MACCFG1_SYNCD_RX_EN 0x00000008
151 #define MACCFG1_RX_EN 0x00000004
152 #define MACCFG1_SYNCD_TX_EN 0x00000002
153 #define MACCFG1_TX_EN 0x00000001
155 #define MACCFG2_INIT_SETTINGS 0x00007205
156 #define MACCFG2_FULL_DUPLEX 0x00000001
157 #define MACCFG2_IF 0x00000300
158 #define MACCFG2_MII 0x00000100
159 #define MACCFG2_GMII 0x00000200
160 #define MACCFG2_HUGEFRAME 0x00000020
161 #define MACCFG2_LENGTHCHECK 0x00000010
162 #define MACCFG2_MPEN 0x00000008
164 #define ECNTRL_INIT_SETTINGS 0x00001000
165 #define ECNTRL_TBI_MODE 0x00000020
166 #define ECNTRL_REDUCED_MODE 0x00000010
167 #define ECNTRL_R100 0x00000008
168 #define ECNTRL_REDUCED_MII_MODE 0x00000004
169 #define ECNTRL_SGMII_MODE 0x00000002
171 #define MRBLR_INIT_SETTINGS DEFAULT_RX_BUFFER_SIZE
173 #define MINFLR_INIT_SETTINGS 0x00000040
175 /* Init to do tx snooping for buffers and descriptors */
176 #define DMACTRL_INIT_SETTINGS 0x000000c3
177 #define DMACTRL_GRS 0x00000010
178 #define DMACTRL_GTS 0x00000008
180 #define TSTAT_CLEAR_THALT 0x80000000
182 /* Interrupt coalescing macros */
183 #define IC_ICEN 0x80000000
184 #define IC_ICFT_MASK 0x1fe00000
185 #define IC_ICFT_SHIFT 21
186 #define mk_ic_icft(x) \
187 (((unsigned int)x << IC_ICFT_SHIFT)&IC_ICFT_MASK)
188 #define IC_ICTT_MASK 0x0000ffff
189 #define mk_ic_ictt(x) (x&IC_ICTT_MASK)
191 #define mk_ic_value(count, time) (IC_ICEN | \
192 mk_ic_icft(count) | \
194 #define get_icft_value(ic) (((unsigned long)ic & IC_ICFT_MASK) >> \
196 #define get_ictt_value(ic) ((unsigned long)ic & IC_ICTT_MASK)
198 #define DEFAULT_TXIC mk_ic_value(DEFAULT_TXCOUNT, DEFAULT_TXTIME)
199 #define DEFAULT_RXIC mk_ic_value(DEFAULT_RXCOUNT, DEFAULT_RXTIME)
201 #define skip_bd(bdp, stride, base, ring_size) ({ \
202 typeof(bdp) new_bd = (bdp) + (stride); \
203 (new_bd >= (base) + (ring_size)) ? (new_bd - (ring_size)) : new_bd; })
205 #define next_bd(bdp, base, ring_size) skip_bd(bdp, 1, base, ring_size)
207 #define RCTRL_PAL_MASK 0x001f0000
208 #define RCTRL_VLEX 0x00002000
209 #define RCTRL_FILREN 0x00001000
210 #define RCTRL_GHTX 0x00000400
211 #define RCTRL_IPCSEN 0x00000200
212 #define RCTRL_TUCSEN 0x00000100
213 #define RCTRL_PRSDEP_MASK 0x000000c0
214 #define RCTRL_PRSDEP_INIT 0x000000c0
215 #define RCTRL_PROM 0x00000008
216 #define RCTRL_EMEN 0x00000002
217 #define RCTRL_REQ_PARSER (RCTRL_VLEX | RCTRL_IPCSEN | \
219 #define RCTRL_CHECKSUMMING (RCTRL_IPCSEN | RCTRL_TUCSEN | \
221 #define RCTRL_EXTHASH (RCTRL_GHTX)
222 #define RCTRL_VLAN (RCTRL_PRSDEP_INIT)
223 #define RCTRL_PADDING(x) ((x << 16) & RCTRL_PAL_MASK)
226 #define RSTAT_CLEAR_RHALT 0x00800000
228 #define TCTRL_IPCSEN 0x00004000
229 #define TCTRL_TUCSEN 0x00002000
230 #define TCTRL_VLINS 0x00001000
231 #define TCTRL_INIT_CSUM (TCTRL_TUCSEN | TCTRL_IPCSEN)
233 #define IEVENT_INIT_CLEAR 0xffffffff
234 #define IEVENT_BABR 0x80000000
235 #define IEVENT_RXC 0x40000000
236 #define IEVENT_BSY 0x20000000
237 #define IEVENT_EBERR 0x10000000
238 #define IEVENT_MSRO 0x04000000
239 #define IEVENT_GTSC 0x02000000
240 #define IEVENT_BABT 0x01000000
241 #define IEVENT_TXC 0x00800000
242 #define IEVENT_TXE 0x00400000
243 #define IEVENT_TXB 0x00200000
244 #define IEVENT_TXF 0x00100000
245 #define IEVENT_LC 0x00040000
246 #define IEVENT_CRL 0x00020000
247 #define IEVENT_XFUN 0x00010000
248 #define IEVENT_RXB0 0x00008000
249 #define IEVENT_MAG 0x00000800
250 #define IEVENT_GRSC 0x00000100
251 #define IEVENT_RXF0 0x00000080
252 #define IEVENT_FIR 0x00000008
253 #define IEVENT_FIQ 0x00000004
254 #define IEVENT_DPE 0x00000002
255 #define IEVENT_PERR 0x00000001
256 #define IEVENT_RX_MASK (IEVENT_RXB0 | IEVENT_RXF0 | IEVENT_BSY)
257 #define IEVENT_TX_MASK (IEVENT_TXB | IEVENT_TXF)
258 #define IEVENT_RTX_MASK (IEVENT_RX_MASK | IEVENT_TX_MASK)
259 #define IEVENT_ERR_MASK \
260 (IEVENT_RXC | IEVENT_BSY | IEVENT_EBERR | IEVENT_MSRO | \
261 IEVENT_BABT | IEVENT_TXC | IEVENT_TXE | IEVENT_LC \
262 | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR \
265 #define IMASK_INIT_CLEAR 0x00000000
266 #define IMASK_BABR 0x80000000
267 #define IMASK_RXC 0x40000000
268 #define IMASK_BSY 0x20000000
269 #define IMASK_EBERR 0x10000000
270 #define IMASK_MSRO 0x04000000
271 #define IMASK_GRSC 0x02000000
272 #define IMASK_BABT 0x01000000
273 #define IMASK_TXC 0x00800000
274 #define IMASK_TXEEN 0x00400000
275 #define IMASK_TXBEN 0x00200000
276 #define IMASK_TXFEN 0x00100000
277 #define IMASK_LC 0x00040000
278 #define IMASK_CRL 0x00020000
279 #define IMASK_XFUN 0x00010000
280 #define IMASK_RXB0 0x00008000
281 #define IMASK_MAG 0x00000800
282 #define IMASK_GTSC 0x00000100
283 #define IMASK_RXFEN0 0x00000080
284 #define IMASK_FIR 0x00000008
285 #define IMASK_FIQ 0x00000004
286 #define IMASK_DPE 0x00000002
287 #define IMASK_PERR 0x00000001
288 #define IMASK_DEFAULT (IMASK_TXEEN | IMASK_TXFEN | IMASK_TXBEN | \
289 IMASK_RXFEN0 | IMASK_BSY | IMASK_EBERR | IMASK_BABR | \
290 IMASK_XFUN | IMASK_RXC | IMASK_BABT | IMASK_DPE \
292 #define IMASK_RTX_DISABLED ((~(IMASK_RXFEN0 | IMASK_TXFEN | IMASK_BSY)) \
295 /* Fifo management */
296 #define FIFO_TX_THR_MASK 0x01ff
297 #define FIFO_TX_STARVE_MASK 0x01ff
298 #define FIFO_TX_STARVE_OFF_MASK 0x01ff
300 /* Attribute fields */
302 /* This enables rx snooping for buffers and descriptors */
303 #define ATTR_BDSTASH 0x00000800
305 #define ATTR_BUFSTASH 0x00004000
307 #define ATTR_SNOOPING 0x000000c0
308 #define ATTR_INIT_SETTINGS ATTR_SNOOPING
310 #define ATTRELI_INIT_SETTINGS 0x0
311 #define ATTRELI_EL_MASK 0x3fff0000
312 #define ATTRELI_EL(x) (x << 16)
313 #define ATTRELI_EI_MASK 0x00003fff
314 #define ATTRELI_EI(x) (x)
316 #define BD_LFLAG(flags) ((flags) << 16)
317 #define BD_LENGTH_MASK 0x0000ffff
319 /* TxBD status field bits */
320 #define TXBD_READY 0x8000
321 #define TXBD_PADCRC 0x4000
322 #define TXBD_WRAP 0x2000
323 #define TXBD_INTERRUPT 0x1000
324 #define TXBD_LAST 0x0800
325 #define TXBD_CRC 0x0400
326 #define TXBD_DEF 0x0200
327 #define TXBD_HUGEFRAME 0x0080
328 #define TXBD_LATECOLLISION 0x0080
329 #define TXBD_RETRYLIMIT 0x0040
330 #define TXBD_RETRYCOUNTMASK 0x003c
331 #define TXBD_UNDERRUN 0x0002
332 #define TXBD_TOE 0x0002
334 /* Tx FCB param bits */
335 #define TXFCB_VLN 0x80
336 #define TXFCB_IP 0x40
337 #define TXFCB_IP6 0x20
338 #define TXFCB_TUP 0x10
339 #define TXFCB_UDP 0x08
340 #define TXFCB_CIP 0x04
341 #define TXFCB_CTU 0x02
342 #define TXFCB_NPH 0x01
343 #define TXFCB_DEFAULT (TXFCB_IP|TXFCB_TUP|TXFCB_CTU|TXFCB_NPH)
345 /* RxBD status field bits */
346 #define RXBD_EMPTY 0x8000
347 #define RXBD_RO1 0x4000
348 #define RXBD_WRAP 0x2000
349 #define RXBD_INTERRUPT 0x1000
350 #define RXBD_LAST 0x0800
351 #define RXBD_FIRST 0x0400
352 #define RXBD_MISS 0x0100
353 #define RXBD_BROADCAST 0x0080
354 #define RXBD_MULTICAST 0x0040
355 #define RXBD_LARGE 0x0020
356 #define RXBD_NONOCTET 0x0010
357 #define RXBD_SHORT 0x0008
358 #define RXBD_CRCERR 0x0004
359 #define RXBD_OVERRUN 0x0002
360 #define RXBD_TRUNCATED 0x0001
361 #define RXBD_STATS 0x01ff
362 #define RXBD_ERR (RXBD_LARGE | RXBD_SHORT | RXBD_NONOCTET \
363 | RXBD_CRCERR | RXBD_OVERRUN \
366 /* Rx FCB status field bits */
367 #define RXFCB_VLN 0x8000
368 #define RXFCB_IP 0x4000
369 #define RXFCB_IP6 0x2000
370 #define RXFCB_TUP 0x1000
371 #define RXFCB_CIP 0x0800
372 #define RXFCB_CTU 0x0400
373 #define RXFCB_EIP 0x0200
374 #define RXFCB_ETU 0x0100
375 #define RXFCB_CSUM_MASK 0x0f00
376 #define RXFCB_PERR_MASK 0x000c
377 #define RXFCB_PERR_BADL3 0x0008
379 #define GFAR_INT_NAME_MAX IFNAMSIZ + 4
385 u16 status; /* Status Fields */
386 u16 length; /* Buffer length */
390 u32 bufPtr; /* Buffer Pointer */
396 u8 l4os; /* Level 4 Header Offset */
397 u8 l3os; /* Level 3 Header Offset */
398 u16 phcs; /* Pseudo-header Checksum */
399 u16 vlctl; /* VLAN control word */
406 u16 status; /* Status Fields */
407 u16 length; /* Buffer Length */
411 u32 bufPtr; /* Buffer Pointer */
416 u8 rq; /* Receive Queue index */
417 u8 pro; /* Layer 4 Protocol */
419 u16 vlctl; /* VLAN control word */
424 u32 tr64; /* 0x.680 - Transmit and Receive 64-byte Frame Counter */
425 u32 tr127; /* 0x.684 - Transmit and Receive 65-127 byte Frame Counter */
426 u32 tr255; /* 0x.688 - Transmit and Receive 128-255 byte Frame Counter */
427 u32 tr511; /* 0x.68c - Transmit and Receive 256-511 byte Frame Counter */
428 u32 tr1k; /* 0x.690 - Transmit and Receive 512-1023 byte Frame Counter */
429 u32 trmax; /* 0x.694 - Transmit and Receive 1024-1518 byte Frame Counter */
430 u32 trmgv; /* 0x.698 - Transmit and Receive 1519-1522 byte Good VLAN Frame */
431 u32 rbyt; /* 0x.69c - Receive Byte Counter */
432 u32 rpkt; /* 0x.6a0 - Receive Packet Counter */
433 u32 rfcs; /* 0x.6a4 - Receive FCS Error Counter */
434 u32 rmca; /* 0x.6a8 - Receive Multicast Packet Counter */
435 u32 rbca; /* 0x.6ac - Receive Broadcast Packet Counter */
436 u32 rxcf; /* 0x.6b0 - Receive Control Frame Packet Counter */
437 u32 rxpf; /* 0x.6b4 - Receive Pause Frame Packet Counter */
438 u32 rxuo; /* 0x.6b8 - Receive Unknown OP Code Counter */
439 u32 raln; /* 0x.6bc - Receive Alignment Error Counter */
440 u32 rflr; /* 0x.6c0 - Receive Frame Length Error Counter */
441 u32 rcde; /* 0x.6c4 - Receive Code Error Counter */
442 u32 rcse; /* 0x.6c8 - Receive Carrier Sense Error Counter */
443 u32 rund; /* 0x.6cc - Receive Undersize Packet Counter */
444 u32 rovr; /* 0x.6d0 - Receive Oversize Packet Counter */
445 u32 rfrg; /* 0x.6d4 - Receive Fragments Counter */
446 u32 rjbr; /* 0x.6d8 - Receive Jabber Counter */
447 u32 rdrp; /* 0x.6dc - Receive Drop Counter */
448 u32 tbyt; /* 0x.6e0 - Transmit Byte Counter Counter */
449 u32 tpkt; /* 0x.6e4 - Transmit Packet Counter */
450 u32 tmca; /* 0x.6e8 - Transmit Multicast Packet Counter */
451 u32 tbca; /* 0x.6ec - Transmit Broadcast Packet Counter */
452 u32 txpf; /* 0x.6f0 - Transmit Pause Control Frame Counter */
453 u32 tdfr; /* 0x.6f4 - Transmit Deferral Packet Counter */
454 u32 tedf; /* 0x.6f8 - Transmit Excessive Deferral Packet Counter */
455 u32 tscl; /* 0x.6fc - Transmit Single Collision Packet Counter */
456 u32 tmcl; /* 0x.700 - Transmit Multiple Collision Packet Counter */
457 u32 tlcl; /* 0x.704 - Transmit Late Collision Packet Counter */
458 u32 txcl; /* 0x.708 - Transmit Excessive Collision Packet Counter */
459 u32 tncl; /* 0x.70c - Transmit Total Collision Counter */
461 u32 tdrp; /* 0x.714 - Transmit Drop Frame Counter */
462 u32 tjbr; /* 0x.718 - Transmit Jabber Frame Counter */
463 u32 tfcs; /* 0x.71c - Transmit FCS Error Counter */
464 u32 txcf; /* 0x.720 - Transmit Control Frame Counter */
465 u32 tovr; /* 0x.724 - Transmit Oversize Frame Counter */
466 u32 tund; /* 0x.728 - Transmit Undersize Frame Counter */
467 u32 tfrg; /* 0x.72c - Transmit Fragments Frame Counter */
468 u32 car1; /* 0x.730 - Carry Register One */
469 u32 car2; /* 0x.734 - Carry Register Two */
470 u32 cam1; /* 0x.738 - Carry Mask Register One */
471 u32 cam2; /* 0x.73c - Carry Mask Register Two */
474 struct gfar_extra_stats {
491 #define GFAR_RMON_LEN ((sizeof(struct rmon_mib) - 16)/sizeof(u32))
492 #define GFAR_EXTRA_STATS_LEN (sizeof(struct gfar_extra_stats)/sizeof(u64))
494 /* Number of stats in the stats structure (ignore car and cam regs)*/
495 #define GFAR_STATS_LEN (GFAR_RMON_LEN + GFAR_EXTRA_STATS_LEN)
497 #define GFAR_INFOSTR_LEN 32
500 u64 extra[GFAR_EXTRA_STATS_LEN];
501 u64 rmon[GFAR_RMON_LEN];
506 u32 tsec_id; /* 0x.000 - Controller ID register */
508 u32 ievent; /* 0x.010 - Interrupt Event Register */
509 u32 imask; /* 0x.014 - Interrupt Mask Register */
510 u32 edis; /* 0x.018 - Error Disabled Register */
512 u32 ecntrl; /* 0x.020 - Ethernet Control Register */
513 u32 minflr; /* 0x.024 - Minimum Frame Length Register */
514 u32 ptv; /* 0x.028 - Pause Time Value Register */
515 u32 dmactrl; /* 0x.02c - DMA Control Register */
516 u32 tbipa; /* 0x.030 - TBI PHY Address Register */
518 u32 fifo_tx_thr; /* 0x.08c - FIFO transmit threshold register */
520 u32 fifo_tx_starve; /* 0x.098 - FIFO transmit starve register */
521 u32 fifo_tx_starve_shutoff; /* 0x.09c - FIFO transmit starve shutoff register */
523 u32 fifo_rx_pause; /* 0x.0a4 - FIFO receive pause threshold register */
524 u32 fifo_rx_alarm; /* 0x.0a8 - FIFO receive alarm threshold register */
526 u32 tctrl; /* 0x.100 - Transmit Control Register */
527 u32 tstat; /* 0x.104 - Transmit Status Register */
528 u32 dfvlan; /* 0x.108 - Default VLAN Control word */
529 u32 tbdlen; /* 0x.10c - Transmit Buffer Descriptor Data Length Register */
530 u32 txic; /* 0x.110 - Transmit Interrupt Coalescing Configuration Register */
531 u32 tqueue; /* 0x.114 - Transmit queue control register */
533 u32 tr03wt; /* 0x.140 - TxBD Rings 0-3 round-robin weightings */
534 u32 tr47wt; /* 0x.144 - TxBD Rings 4-7 round-robin weightings */
536 u32 tbdbph; /* 0x.17c - Tx data buffer pointer high */
538 u32 tbptr0; /* 0x.184 - TxBD Pointer for ring 0 */
540 u32 tbptr1; /* 0x.18c - TxBD Pointer for ring 1 */
542 u32 tbptr2; /* 0x.194 - TxBD Pointer for ring 2 */
544 u32 tbptr3; /* 0x.19c - TxBD Pointer for ring 3 */
546 u32 tbptr4; /* 0x.1a4 - TxBD Pointer for ring 4 */
548 u32 tbptr5; /* 0x.1ac - TxBD Pointer for ring 5 */
550 u32 tbptr6; /* 0x.1b4 - TxBD Pointer for ring 6 */
552 u32 tbptr7; /* 0x.1bc - TxBD Pointer for ring 7 */
554 u32 tbaseh; /* 0x.200 - TxBD base address high */
555 u32 tbase0; /* 0x.204 - TxBD Base Address of ring 0 */
557 u32 tbase1; /* 0x.20c - TxBD Base Address of ring 1 */
559 u32 tbase2; /* 0x.214 - TxBD Base Address of ring 2 */
561 u32 tbase3; /* 0x.21c - TxBD Base Address of ring 3 */
563 u32 tbase4; /* 0x.224 - TxBD Base Address of ring 4 */
565 u32 tbase5; /* 0x.22c - TxBD Base Address of ring 5 */
567 u32 tbase6; /* 0x.234 - TxBD Base Address of ring 6 */
569 u32 tbase7; /* 0x.23c - TxBD Base Address of ring 7 */
571 u32 rctrl; /* 0x.300 - Receive Control Register */
572 u32 rstat; /* 0x.304 - Receive Status Register */
574 u32 rxic; /* 0x.310 - Receive Interrupt Coalescing Configuration Register */
575 u32 rqueue; /* 0x.314 - Receive queue control register */
577 u32 rbifx; /* 0x.330 - Receive bit field extract control register */
578 u32 rqfar; /* 0x.334 - Receive queue filing table address register */
579 u32 rqfcr; /* 0x.338 - Receive queue filing table control register */
580 u32 rqfpr; /* 0x.33c - Receive queue filing table property register */
581 u32 mrblr; /* 0x.340 - Maximum Receive Buffer Length Register */
583 u32 rbdbph; /* 0x.37c - Rx data buffer pointer high */
585 u32 rbptr0; /* 0x.384 - RxBD pointer for ring 0 */
587 u32 rbptr1; /* 0x.38c - RxBD pointer for ring 1 */
589 u32 rbptr2; /* 0x.394 - RxBD pointer for ring 2 */
591 u32 rbptr3; /* 0x.39c - RxBD pointer for ring 3 */
593 u32 rbptr4; /* 0x.3a4 - RxBD pointer for ring 4 */
595 u32 rbptr5; /* 0x.3ac - RxBD pointer for ring 5 */
597 u32 rbptr6; /* 0x.3b4 - RxBD pointer for ring 6 */
599 u32 rbptr7; /* 0x.3bc - RxBD pointer for ring 7 */
601 u32 rbaseh; /* 0x.400 - RxBD base address high */
602 u32 rbase0; /* 0x.404 - RxBD base address of ring 0 */
604 u32 rbase1; /* 0x.40c - RxBD base address of ring 1 */
606 u32 rbase2; /* 0x.414 - RxBD base address of ring 2 */
608 u32 rbase3; /* 0x.41c - RxBD base address of ring 3 */
610 u32 rbase4; /* 0x.424 - RxBD base address of ring 4 */
612 u32 rbase5; /* 0x.42c - RxBD base address of ring 5 */
614 u32 rbase6; /* 0x.434 - RxBD base address of ring 6 */
616 u32 rbase7; /* 0x.43c - RxBD base address of ring 7 */
618 u32 maccfg1; /* 0x.500 - MAC Configuration 1 Register */
619 u32 maccfg2; /* 0x.504 - MAC Configuration 2 Register */
620 u32 ipgifg; /* 0x.508 - Inter Packet Gap/Inter Frame Gap Register */
621 u32 hafdup; /* 0x.50c - Half Duplex Register */
622 u32 maxfrm; /* 0x.510 - Maximum Frame Length Register */
624 u8 gfar_mii_regs[24]; /* See gianfar_phy.h */
626 u32 ifstat; /* 0x.53c - Interface Status Register */
627 u32 macstnaddr1; /* 0x.540 - Station Address Part 1 Register */
628 u32 macstnaddr2; /* 0x.544 - Station Address Part 2 Register */
629 u32 mac01addr1; /* 0x.548 - MAC exact match address 1, part 1 */
630 u32 mac01addr2; /* 0x.54c - MAC exact match address 1, part 2 */
631 u32 mac02addr1; /* 0x.550 - MAC exact match address 2, part 1 */
632 u32 mac02addr2; /* 0x.554 - MAC exact match address 2, part 2 */
633 u32 mac03addr1; /* 0x.558 - MAC exact match address 3, part 1 */
634 u32 mac03addr2; /* 0x.55c - MAC exact match address 3, part 2 */
635 u32 mac04addr1; /* 0x.560 - MAC exact match address 4, part 1 */
636 u32 mac04addr2; /* 0x.564 - MAC exact match address 4, part 2 */
637 u32 mac05addr1; /* 0x.568 - MAC exact match address 5, part 1 */
638 u32 mac05addr2; /* 0x.56c - MAC exact match address 5, part 2 */
639 u32 mac06addr1; /* 0x.570 - MAC exact match address 6, part 1 */
640 u32 mac06addr2; /* 0x.574 - MAC exact match address 6, part 2 */
641 u32 mac07addr1; /* 0x.578 - MAC exact match address 7, part 1 */
642 u32 mac07addr2; /* 0x.57c - MAC exact match address 7, part 2 */
643 u32 mac08addr1; /* 0x.580 - MAC exact match address 8, part 1 */
644 u32 mac08addr2; /* 0x.584 - MAC exact match address 8, part 2 */
645 u32 mac09addr1; /* 0x.588 - MAC exact match address 9, part 1 */
646 u32 mac09addr2; /* 0x.58c - MAC exact match address 9, part 2 */
647 u32 mac10addr1; /* 0x.590 - MAC exact match address 10, part 1*/
648 u32 mac10addr2; /* 0x.594 - MAC exact match address 10, part 2*/
649 u32 mac11addr1; /* 0x.598 - MAC exact match address 11, part 1*/
650 u32 mac11addr2; /* 0x.59c - MAC exact match address 11, part 2*/
651 u32 mac12addr1; /* 0x.5a0 - MAC exact match address 12, part 1*/
652 u32 mac12addr2; /* 0x.5a4 - MAC exact match address 12, part 2*/
653 u32 mac13addr1; /* 0x.5a8 - MAC exact match address 13, part 1*/
654 u32 mac13addr2; /* 0x.5ac - MAC exact match address 13, part 2*/
655 u32 mac14addr1; /* 0x.5b0 - MAC exact match address 14, part 1*/
656 u32 mac14addr2; /* 0x.5b4 - MAC exact match address 14, part 2*/
657 u32 mac15addr1; /* 0x.5b8 - MAC exact match address 15, part 1*/
658 u32 mac15addr2; /* 0x.5bc - MAC exact match address 15, part 2*/
660 struct rmon_mib rmon; /* 0x.680-0x.73c */
661 u32 rrej; /* 0x.740 - Receive filer rejected packet counter */
663 u32 igaddr0; /* 0x.800 - Indivdual/Group address register 0*/
664 u32 igaddr1; /* 0x.804 - Indivdual/Group address register 1*/
665 u32 igaddr2; /* 0x.808 - Indivdual/Group address register 2*/
666 u32 igaddr3; /* 0x.80c - Indivdual/Group address register 3*/
667 u32 igaddr4; /* 0x.810 - Indivdual/Group address register 4*/
668 u32 igaddr5; /* 0x.814 - Indivdual/Group address register 5*/
669 u32 igaddr6; /* 0x.818 - Indivdual/Group address register 6*/
670 u32 igaddr7; /* 0x.81c - Indivdual/Group address register 7*/
672 u32 gaddr0; /* 0x.880 - Group address register 0 */
673 u32 gaddr1; /* 0x.884 - Group address register 1 */
674 u32 gaddr2; /* 0x.888 - Group address register 2 */
675 u32 gaddr3; /* 0x.88c - Group address register 3 */
676 u32 gaddr4; /* 0x.890 - Group address register 4 */
677 u32 gaddr5; /* 0x.894 - Group address register 5 */
678 u32 gaddr6; /* 0x.898 - Group address register 6 */
679 u32 gaddr7; /* 0x.89c - Group address register 7 */
681 u32 fifocfg; /* 0x.a00 - FIFO interface config register */
684 u32 attr; /* 0x.bf8 - Attributes Register */
685 u32 attreli; /* 0x.bfc - Attributes Extract Length and Extract Index Register */
690 /* Flags related to gianfar device features */
691 #define FSL_GIANFAR_DEV_HAS_GIGABIT 0x00000001
692 #define FSL_GIANFAR_DEV_HAS_COALESCE 0x00000002
693 #define FSL_GIANFAR_DEV_HAS_RMON 0x00000004
694 #define FSL_GIANFAR_DEV_HAS_MULTI_INTR 0x00000008
695 #define FSL_GIANFAR_DEV_HAS_CSUM 0x00000010
696 #define FSL_GIANFAR_DEV_HAS_VLAN 0x00000020
697 #define FSL_GIANFAR_DEV_HAS_EXTENDED_HASH 0x00000040
698 #define FSL_GIANFAR_DEV_HAS_PADDING 0x00000080
699 #define FSL_GIANFAR_DEV_HAS_MAGIC_PACKET 0x00000100
700 #define FSL_GIANFAR_DEV_HAS_BD_STASHING 0x00000200
701 #define FSL_GIANFAR_DEV_HAS_BUF_STASHING 0x00000400
703 /* Struct stolen almost completely (and shamelessly) from the FCC enet source
704 * (Ok, that's not so true anymore, but there is a family resemblence)
705 * The GFAR buffer descriptors track the ring buffers. The rx_bd_base
706 * and tx_bd_base always point to the currently available buffer.
707 * The dirty_tx tracks the current buffer that is being sent by the
708 * controller. The cur_tx and dirty_tx are equal under both completely
709 * empty and completely full conditions. The empty/ready indicator in
710 * the buffer descriptor determines the actual condition.
712 struct gfar_private {
713 /* Fields controlled by TX lock */
716 /* Pointer to the array of skbuffs */
717 struct sk_buff ** tx_skbuff;
719 /* next free skb in the array */
722 /* First skb in line to be transmitted */
725 /* Configuration info for the coalescing features */
726 unsigned char txcoalescing;
729 /* Buffer descriptor pointers */
730 struct txbd8 *tx_bd_base; /* First tx buffer descriptor */
731 struct txbd8 *cur_tx; /* Next free ring entry */
732 struct txbd8 *dirty_tx; /* First buffer in line
734 unsigned int tx_ring_size;
735 unsigned int num_txbdfree; /* number of TxBDs free */
737 /* RX Locked fields */
740 struct device_node *node;
741 struct net_device *ndev;
742 struct of_device *ofdev;
743 struct napi_struct napi;
745 /* skb array and index */
746 struct sk_buff ** rx_skbuff;
749 /* RX Coalescing values */
750 unsigned char rxcoalescing;
753 struct rxbd8 *rx_bd_base; /* First Rx buffers */
754 struct rxbd8 *cur_rx; /* Next free rx ring entry */
757 unsigned int rx_ring_size;
758 unsigned int rx_buffer_size;
759 unsigned int rx_stash_size;
760 unsigned int rx_stash_index;
762 struct sk_buff_head rx_recycle;
764 struct vlan_group *vlgrp;
766 /* Unprotected fields */
767 /* Pointer to the GFAR memory mapped Registers */
768 struct gfar __iomem *regs;
770 /* Hash registers and their width */
771 u32 __iomem *hash_regs[16];
774 /* global parameters */
775 unsigned int fifo_threshold;
776 unsigned int fifo_starve;
777 unsigned int fifo_starve_off;
779 /* Bitfield update lock */
782 phy_interface_t interface;
783 char phy_bus_id[BUS_ID_SIZE];
785 unsigned char rx_csum_enable:1,
788 wol_en:1; /* Wake-on-LAN enabled */
789 unsigned short padding;
791 unsigned int interruptTransmit;
792 unsigned int interruptReceive;
793 unsigned int interruptError;
796 struct phy_device *phydev;
797 struct phy_device *tbiphy;
798 struct mii_bus *mii_bus;
805 struct work_struct reset_task;
807 char int_name_tx[GFAR_INT_NAME_MAX];
808 char int_name_rx[GFAR_INT_NAME_MAX];
809 char int_name_er[GFAR_INT_NAME_MAX];
811 /* Network Statistics */
812 struct gfar_extra_stats extra_stats;
815 static inline u32 gfar_read(volatile unsigned __iomem *addr)
822 static inline void gfar_write(volatile unsigned __iomem *addr, u32 val)
827 extern irqreturn_t gfar_receive(int irq, void *dev_id);
828 extern int startup_gfar(struct net_device *dev);
829 extern void stop_gfar(struct net_device *dev);
830 extern void gfar_halt(struct net_device *dev);
831 extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev,
832 int enable, u32 regnum, u32 read);
833 void gfar_init_sysfs(struct net_device *dev);
835 extern const struct ethtool_ops gfar_ethtool_ops;
837 #endif /* __GIANFAR_H */