2 * drivers/net/ethernet/freescale/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
10 * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com>
12 * Copyright 2002-2009, 2011-2013 Freescale Semiconductor, Inc.
14 * This program is free software; you can redistribute it and/or modify it
15 * under the terms of the GNU General Public License as published by the
16 * Free Software Foundation; either version 2 of the License, or (at your
17 * option) any later version.
20 * -Add support for module parameters
21 * -Add patch for ethtool phys id
26 #include <linux/kernel.h>
27 #include <linux/sched.h>
28 #include <linux/string.h>
29 #include <linux/errno.h>
30 #include <linux/slab.h>
31 #include <linux/interrupt.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>
49 struct ethtool_flow_spec_container {
50 struct ethtool_rx_flow_spec fs;
51 struct list_head list;
54 struct ethtool_rx_list {
55 struct list_head list;
59 /* The maximum number of packets to be handled in one call of gfar_poll */
60 #define GFAR_DEV_WEIGHT 64
63 #define GMAC_FCB_LEN 8
65 /* Length for TxPAL */
66 #define GMAC_TXPAL_LEN 16
68 /* Default padding amount */
69 #define DEFAULT_PADDING 2
71 /* Number of bytes to align the rx bufs to */
72 #define RXBUF_ALIGNMENT 64
74 /* The number of bytes which composes a unit for the purpose of
75 * allocating data buffers. ie-for any given MTU, the data buffer
76 * will be the next highest multiple of 512 bytes. */
77 #define INCREMENTAL_BUFFER_SIZE 512
79 #define PHY_INIT_TIMEOUT 100000
81 #define DRV_NAME "gfar-enet"
82 extern const char gfar_driver_version[];
84 /* MAXIMUM NUMBER OF QUEUES SUPPORTED */
88 /* MAXIMUM NUMBER OF GROUPS SUPPORTED */
91 /* These need to be powers of 2 for this driver */
92 #define DEFAULT_TX_RING_SIZE 256
93 #define DEFAULT_RX_RING_SIZE 256
95 #define GFAR_RX_MAX_RING_SIZE 256
96 #define GFAR_TX_MAX_RING_SIZE 256
98 #define GFAR_MAX_FIFO_THRESHOLD 511
99 #define GFAR_MAX_FIFO_STARVE 511
100 #define GFAR_MAX_FIFO_STARVE_OFF 511
102 #define FBTHR_SHIFT 24
103 #define DEFAULT_RX_LFC_THR 16
104 #define DEFAULT_LFC_PTVVAL 4
106 #define DEFAULT_RX_BUFFER_SIZE 1536
107 #define TX_RING_MOD_MASK(size) (size-1)
108 #define RX_RING_MOD_MASK(size) (size-1)
109 #define JUMBO_BUFFER_SIZE 9728
110 #define JUMBO_FRAME_SIZE 9600
112 #define DEFAULT_FIFO_TX_THR 0x100
113 #define DEFAULT_FIFO_TX_STARVE 0x40
114 #define DEFAULT_FIFO_TX_STARVE_OFF 0x80
115 #define DEFAULT_BD_STASH 1
116 #define DEFAULT_STASH_LENGTH 96
117 #define DEFAULT_STASH_INDEX 0
119 /* The number of Exact Match registers */
120 #define GFAR_EM_NUM 15
122 /* Latency of interface clock in nanoseconds */
123 /* Interface clock latency , in this case, means the
124 * time described by a value of 1 in the interrupt
125 * coalescing registers' time fields. Since those fields
126 * refer to the time it takes for 64 clocks to pass, the
127 * latencies are as such:
128 * GBIT = 125MHz => 8ns/clock => 8*64 ns / tick
129 * 100 = 25 MHz => 40ns/clock => 40*64 ns / tick
130 * 10 = 2.5 MHz => 400ns/clock => 400*64 ns / tick
132 #define GFAR_GBIT_TIME 512
133 #define GFAR_100_TIME 2560
134 #define GFAR_10_TIME 25600
136 #define DEFAULT_TX_COALESCE 1
137 #define DEFAULT_TXCOUNT 16
138 #define DEFAULT_TXTIME 21
140 #define DEFAULT_RXTIME 21
142 #define DEFAULT_RX_COALESCE 0
143 #define DEFAULT_RXCOUNT 0
145 #define GFAR_SUPPORTED (SUPPORTED_10baseT_Half \
146 | SUPPORTED_10baseT_Full \
147 | SUPPORTED_100baseT_Half \
148 | SUPPORTED_100baseT_Full \
149 | SUPPORTED_Autoneg \
152 #define GFAR_SUPPORTED_GBIT SUPPORTED_1000baseT_Full
154 /* TBI register addresses */
155 #define MII_TBICON 0x11
157 /* TBICON register bit fields */
158 #define TBICON_CLK_SELECT 0x0020
160 /* MAC register bits */
161 #define MACCFG1_SOFT_RESET 0x80000000
162 #define MACCFG1_RESET_RX_MC 0x00080000
163 #define MACCFG1_RESET_TX_MC 0x00040000
164 #define MACCFG1_RESET_RX_FUN 0x00020000
165 #define MACCFG1_RESET_TX_FUN 0x00010000
166 #define MACCFG1_LOOPBACK 0x00000100
167 #define MACCFG1_RX_FLOW 0x00000020
168 #define MACCFG1_TX_FLOW 0x00000010
169 #define MACCFG1_SYNCD_RX_EN 0x00000008
170 #define MACCFG1_RX_EN 0x00000004
171 #define MACCFG1_SYNCD_TX_EN 0x00000002
172 #define MACCFG1_TX_EN 0x00000001
174 #define MACCFG2_INIT_SETTINGS 0x00007205
175 #define MACCFG2_FULL_DUPLEX 0x00000001
176 #define MACCFG2_IF 0x00000300
177 #define MACCFG2_MII 0x00000100
178 #define MACCFG2_GMII 0x00000200
179 #define MACCFG2_HUGEFRAME 0x00000020
180 #define MACCFG2_LENGTHCHECK 0x00000010
181 #define MACCFG2_MPEN 0x00000008
183 #define ECNTRL_FIFM 0x00008000
184 #define ECNTRL_INIT_SETTINGS 0x00001000
185 #define ECNTRL_TBI_MODE 0x00000020
186 #define ECNTRL_REDUCED_MODE 0x00000010
187 #define ECNTRL_R100 0x00000008
188 #define ECNTRL_REDUCED_MII_MODE 0x00000004
189 #define ECNTRL_SGMII_MODE 0x00000002
191 #define MRBLR_INIT_SETTINGS DEFAULT_RX_BUFFER_SIZE
193 #define MINFLR_INIT_SETTINGS 0x00000040
196 #define TQUEUE_EN0 0x00008000
197 #define TQUEUE_EN1 0x00004000
198 #define TQUEUE_EN2 0x00002000
199 #define TQUEUE_EN3 0x00001000
200 #define TQUEUE_EN4 0x00000800
201 #define TQUEUE_EN5 0x00000400
202 #define TQUEUE_EN6 0x00000200
203 #define TQUEUE_EN7 0x00000100
204 #define TQUEUE_EN_ALL 0x0000FF00
206 #define TR03WT_WT0_MASK 0xFF000000
207 #define TR03WT_WT1_MASK 0x00FF0000
208 #define TR03WT_WT2_MASK 0x0000FF00
209 #define TR03WT_WT3_MASK 0x000000FF
211 #define TR47WT_WT4_MASK 0xFF000000
212 #define TR47WT_WT5_MASK 0x00FF0000
213 #define TR47WT_WT6_MASK 0x0000FF00
214 #define TR47WT_WT7_MASK 0x000000FF
217 #define RQUEUE_EX0 0x00800000
218 #define RQUEUE_EX1 0x00400000
219 #define RQUEUE_EX2 0x00200000
220 #define RQUEUE_EX3 0x00100000
221 #define RQUEUE_EX4 0x00080000
222 #define RQUEUE_EX5 0x00040000
223 #define RQUEUE_EX6 0x00020000
224 #define RQUEUE_EX7 0x00010000
225 #define RQUEUE_EX_ALL 0x00FF0000
227 #define RQUEUE_EN0 0x00000080
228 #define RQUEUE_EN1 0x00000040
229 #define RQUEUE_EN2 0x00000020
230 #define RQUEUE_EN3 0x00000010
231 #define RQUEUE_EN4 0x00000008
232 #define RQUEUE_EN5 0x00000004
233 #define RQUEUE_EN6 0x00000002
234 #define RQUEUE_EN7 0x00000001
235 #define RQUEUE_EN_ALL 0x000000FF
237 /* Init to do tx snooping for buffers and descriptors */
238 #define DMACTRL_INIT_SETTINGS 0x000000c3
239 #define DMACTRL_GRS 0x00000010
240 #define DMACTRL_GTS 0x00000008
242 #define TSTAT_CLEAR_THALT_ALL 0xFF000000
243 #define TSTAT_CLEAR_THALT 0x80000000
244 #define TSTAT_CLEAR_THALT0 0x80000000
245 #define TSTAT_CLEAR_THALT1 0x40000000
246 #define TSTAT_CLEAR_THALT2 0x20000000
247 #define TSTAT_CLEAR_THALT3 0x10000000
248 #define TSTAT_CLEAR_THALT4 0x08000000
249 #define TSTAT_CLEAR_THALT5 0x04000000
250 #define TSTAT_CLEAR_THALT6 0x02000000
251 #define TSTAT_CLEAR_THALT7 0x01000000
253 /* Interrupt coalescing macros */
254 #define IC_ICEN 0x80000000
255 #define IC_ICFT_MASK 0x1fe00000
256 #define IC_ICFT_SHIFT 21
257 #define mk_ic_icft(x) \
258 (((unsigned int)x << IC_ICFT_SHIFT)&IC_ICFT_MASK)
259 #define IC_ICTT_MASK 0x0000ffff
260 #define mk_ic_ictt(x) (x&IC_ICTT_MASK)
262 #define mk_ic_value(count, time) (IC_ICEN | \
263 mk_ic_icft(count) | \
265 #define get_icft_value(ic) (((unsigned long)ic & IC_ICFT_MASK) >> \
267 #define get_ictt_value(ic) ((unsigned long)ic & IC_ICTT_MASK)
269 #define DEFAULT_TXIC mk_ic_value(DEFAULT_TXCOUNT, DEFAULT_TXTIME)
270 #define DEFAULT_RXIC mk_ic_value(DEFAULT_RXCOUNT, DEFAULT_RXTIME)
272 #define skip_bd(bdp, stride, base, ring_size) ({ \
273 typeof(bdp) new_bd = (bdp) + (stride); \
274 (new_bd >= (base) + (ring_size)) ? (new_bd - (ring_size)) : new_bd; })
276 #define next_bd(bdp, base, ring_size) skip_bd(bdp, 1, base, ring_size)
278 #define RCTRL_TS_ENABLE 0x01000000
279 #define RCTRL_PAL_MASK 0x001f0000
280 #define RCTRL_LFC 0x00004000
281 #define RCTRL_VLEX 0x00002000
282 #define RCTRL_FILREN 0x00001000
283 #define RCTRL_GHTX 0x00000400
284 #define RCTRL_IPCSEN 0x00000200
285 #define RCTRL_TUCSEN 0x00000100
286 #define RCTRL_PRSDEP_MASK 0x000000c0
287 #define RCTRL_PRSDEP_INIT 0x000000c0
288 #define RCTRL_PRSFM 0x00000020
289 #define RCTRL_PROM 0x00000008
290 #define RCTRL_EMEN 0x00000002
291 #define RCTRL_REQ_PARSER (RCTRL_VLEX | RCTRL_IPCSEN | \
292 RCTRL_TUCSEN | RCTRL_FILREN)
293 #define RCTRL_CHECKSUMMING (RCTRL_IPCSEN | RCTRL_TUCSEN | \
295 #define RCTRL_EXTHASH (RCTRL_GHTX)
296 #define RCTRL_VLAN (RCTRL_PRSDEP_INIT)
297 #define RCTRL_PADDING(x) ((x << 16) & RCTRL_PAL_MASK)
300 #define RSTAT_CLEAR_RHALT 0x00800000
301 #define RSTAT_CLEAR_RXF0 0x00000080
302 #define RSTAT_RXF_MASK 0x000000ff
304 #define TCTRL_IPCSEN 0x00004000
305 #define TCTRL_TUCSEN 0x00002000
306 #define TCTRL_VLINS 0x00001000
307 #define TCTRL_THDF 0x00000800
308 #define TCTRL_RFCPAUSE 0x00000010
309 #define TCTRL_TFCPAUSE 0x00000008
310 #define TCTRL_TXSCHED_MASK 0x00000006
311 #define TCTRL_TXSCHED_INIT 0x00000000
312 /* priority scheduling */
313 #define TCTRL_TXSCHED_PRIO 0x00000002
314 /* weighted round-robin scheduling (WRRS) */
315 #define TCTRL_TXSCHED_WRRS 0x00000004
316 /* default WRRS weight and policy setting,
317 * tailored to the tr03wt and tr47wt registers:
318 * equal weight for all Tx Qs, measured in 64byte units
320 #define DEFAULT_WRRS_WEIGHT 0x18181818
322 #define TCTRL_INIT_CSUM (TCTRL_TUCSEN | TCTRL_IPCSEN)
324 #define IEVENT_INIT_CLEAR 0xffffffff
325 #define IEVENT_BABR 0x80000000
326 #define IEVENT_RXC 0x40000000
327 #define IEVENT_BSY 0x20000000
328 #define IEVENT_EBERR 0x10000000
329 #define IEVENT_MSRO 0x04000000
330 #define IEVENT_GTSC 0x02000000
331 #define IEVENT_BABT 0x01000000
332 #define IEVENT_TXC 0x00800000
333 #define IEVENT_TXE 0x00400000
334 #define IEVENT_TXB 0x00200000
335 #define IEVENT_TXF 0x00100000
336 #define IEVENT_LC 0x00040000
337 #define IEVENT_CRL 0x00020000
338 #define IEVENT_XFUN 0x00010000
339 #define IEVENT_RXB0 0x00008000
340 #define IEVENT_MAG 0x00000800
341 #define IEVENT_GRSC 0x00000100
342 #define IEVENT_RXF0 0x00000080
343 #define IEVENT_FIR 0x00000008
344 #define IEVENT_FIQ 0x00000004
345 #define IEVENT_DPE 0x00000002
346 #define IEVENT_PERR 0x00000001
347 #define IEVENT_RX_MASK (IEVENT_RXB0 | IEVENT_RXF0 | IEVENT_BSY)
348 #define IEVENT_TX_MASK (IEVENT_TXB | IEVENT_TXF)
349 #define IEVENT_RTX_MASK (IEVENT_RX_MASK | IEVENT_TX_MASK)
350 #define IEVENT_ERR_MASK \
351 (IEVENT_RXC | IEVENT_BSY | IEVENT_EBERR | IEVENT_MSRO | \
352 IEVENT_BABT | IEVENT_TXC | IEVENT_TXE | IEVENT_LC \
353 | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR \
354 | IEVENT_MAG | IEVENT_BABR)
356 #define IMASK_INIT_CLEAR 0x00000000
357 #define IMASK_BABR 0x80000000
358 #define IMASK_RXC 0x40000000
359 #define IMASK_BSY 0x20000000
360 #define IMASK_EBERR 0x10000000
361 #define IMASK_MSRO 0x04000000
362 #define IMASK_GTSC 0x02000000
363 #define IMASK_BABT 0x01000000
364 #define IMASK_TXC 0x00800000
365 #define IMASK_TXEEN 0x00400000
366 #define IMASK_TXBEN 0x00200000
367 #define IMASK_TXFEN 0x00100000
368 #define IMASK_LC 0x00040000
369 #define IMASK_CRL 0x00020000
370 #define IMASK_XFUN 0x00010000
371 #define IMASK_RXB0 0x00008000
372 #define IMASK_MAG 0x00000800
373 #define IMASK_GRSC 0x00000100
374 #define IMASK_RXFEN0 0x00000080
375 #define IMASK_FIR 0x00000008
376 #define IMASK_FIQ 0x00000004
377 #define IMASK_DPE 0x00000002
378 #define IMASK_PERR 0x00000001
379 #define IMASK_DEFAULT (IMASK_TXEEN | IMASK_TXFEN | IMASK_TXBEN | \
380 IMASK_RXFEN0 | IMASK_BSY | IMASK_EBERR | IMASK_BABR | \
381 IMASK_XFUN | IMASK_RXC | IMASK_BABT | IMASK_DPE \
383 #define IMASK_RX_DEFAULT (IMASK_RXFEN0 | IMASK_BSY)
384 #define IMASK_TX_DEFAULT (IMASK_TXFEN | IMASK_TXBEN)
386 #define IMASK_RX_DISABLED ((~(IMASK_RX_DEFAULT)) & IMASK_DEFAULT)
387 #define IMASK_TX_DISABLED ((~(IMASK_TX_DEFAULT)) & IMASK_DEFAULT)
389 /* Fifo management */
390 #define FIFO_TX_THR_MASK 0x01ff
391 #define FIFO_TX_STARVE_MASK 0x01ff
392 #define FIFO_TX_STARVE_OFF_MASK 0x01ff
394 /* Attribute fields */
396 /* This enables rx snooping for buffers and descriptors */
397 #define ATTR_BDSTASH 0x00000800
399 #define ATTR_BUFSTASH 0x00004000
401 #define ATTR_SNOOPING 0x000000c0
402 #define ATTR_INIT_SETTINGS ATTR_SNOOPING
404 #define ATTRELI_INIT_SETTINGS 0x0
405 #define ATTRELI_EL_MASK 0x3fff0000
406 #define ATTRELI_EL(x) (x << 16)
407 #define ATTRELI_EI_MASK 0x00003fff
408 #define ATTRELI_EI(x) (x)
410 #define BD_LFLAG(flags) ((flags) << 16)
411 #define BD_LENGTH_MASK 0x0000ffff
413 #define FPR_FILER_MASK 0xFFFFFFFF
414 #define MAX_FILER_IDX 0xFF
416 /* This default RIR value directly corresponds
417 * to the 3-bit hash value generated */
418 #define DEFAULT_8RXQ_RIR0 0x05397700
419 /* Map even hash values to Q0, and odd ones to Q1 */
420 #define DEFAULT_2RXQ_RIR0 0x04104100
422 /* RQFCR register bits */
423 #define RQFCR_GPI 0x80000000
424 #define RQFCR_HASHTBL_Q 0x00000000
425 #define RQFCR_HASHTBL_0 0x00020000
426 #define RQFCR_HASHTBL_1 0x00040000
427 #define RQFCR_HASHTBL_2 0x00060000
428 #define RQFCR_HASHTBL_3 0x00080000
429 #define RQFCR_HASH 0x00010000
430 #define RQFCR_QUEUE 0x0000FC00
431 #define RQFCR_CLE 0x00000200
432 #define RQFCR_RJE 0x00000100
433 #define RQFCR_AND 0x00000080
434 #define RQFCR_CMP_EXACT 0x00000000
435 #define RQFCR_CMP_MATCH 0x00000020
436 #define RQFCR_CMP_NOEXACT 0x00000040
437 #define RQFCR_CMP_NOMATCH 0x00000060
439 /* RQFCR PID values */
440 #define RQFCR_PID_MASK 0x00000000
441 #define RQFCR_PID_PARSE 0x00000001
442 #define RQFCR_PID_ARB 0x00000002
443 #define RQFCR_PID_DAH 0x00000003
444 #define RQFCR_PID_DAL 0x00000004
445 #define RQFCR_PID_SAH 0x00000005
446 #define RQFCR_PID_SAL 0x00000006
447 #define RQFCR_PID_ETY 0x00000007
448 #define RQFCR_PID_VID 0x00000008
449 #define RQFCR_PID_PRI 0x00000009
450 #define RQFCR_PID_TOS 0x0000000A
451 #define RQFCR_PID_L4P 0x0000000B
452 #define RQFCR_PID_DIA 0x0000000C
453 #define RQFCR_PID_SIA 0x0000000D
454 #define RQFCR_PID_DPT 0x0000000E
455 #define RQFCR_PID_SPT 0x0000000F
457 /* RQFPR when PID is 0x0001 */
458 #define RQFPR_HDR_GE_512 0x00200000
459 #define RQFPR_LERR 0x00100000
460 #define RQFPR_RAR 0x00080000
461 #define RQFPR_RARQ 0x00040000
462 #define RQFPR_AR 0x00020000
463 #define RQFPR_ARQ 0x00010000
464 #define RQFPR_EBC 0x00008000
465 #define RQFPR_VLN 0x00004000
466 #define RQFPR_CFI 0x00002000
467 #define RQFPR_JUM 0x00001000
468 #define RQFPR_IPF 0x00000800
469 #define RQFPR_FIF 0x00000400
470 #define RQFPR_IPV4 0x00000200
471 #define RQFPR_IPV6 0x00000100
472 #define RQFPR_ICC 0x00000080
473 #define RQFPR_ICV 0x00000040
474 #define RQFPR_TCP 0x00000020
475 #define RQFPR_UDP 0x00000010
476 #define RQFPR_TUC 0x00000008
477 #define RQFPR_TUV 0x00000004
478 #define RQFPR_PER 0x00000002
479 #define RQFPR_EER 0x00000001
481 /* TxBD status field bits */
482 #define TXBD_READY 0x8000
483 #define TXBD_PADCRC 0x4000
484 #define TXBD_WRAP 0x2000
485 #define TXBD_INTERRUPT 0x1000
486 #define TXBD_LAST 0x0800
487 #define TXBD_CRC 0x0400
488 #define TXBD_DEF 0x0200
489 #define TXBD_HUGEFRAME 0x0080
490 #define TXBD_LATECOLLISION 0x0080
491 #define TXBD_RETRYLIMIT 0x0040
492 #define TXBD_RETRYCOUNTMASK 0x003c
493 #define TXBD_UNDERRUN 0x0002
494 #define TXBD_TOE 0x0002
496 /* Tx FCB param bits */
497 #define TXFCB_VLN 0x80
498 #define TXFCB_IP 0x40
499 #define TXFCB_IP6 0x20
500 #define TXFCB_TUP 0x10
501 #define TXFCB_UDP 0x08
502 #define TXFCB_CIP 0x04
503 #define TXFCB_CTU 0x02
504 #define TXFCB_NPH 0x01
505 #define TXFCB_DEFAULT (TXFCB_IP|TXFCB_TUP|TXFCB_CTU|TXFCB_NPH)
507 /* RxBD status field bits */
508 #define RXBD_EMPTY 0x8000
509 #define RXBD_RO1 0x4000
510 #define RXBD_WRAP 0x2000
511 #define RXBD_INTERRUPT 0x1000
512 #define RXBD_LAST 0x0800
513 #define RXBD_FIRST 0x0400
514 #define RXBD_MISS 0x0100
515 #define RXBD_BROADCAST 0x0080
516 #define RXBD_MULTICAST 0x0040
517 #define RXBD_LARGE 0x0020
518 #define RXBD_NONOCTET 0x0010
519 #define RXBD_SHORT 0x0008
520 #define RXBD_CRCERR 0x0004
521 #define RXBD_OVERRUN 0x0002
522 #define RXBD_TRUNCATED 0x0001
523 #define RXBD_STATS 0x01ff
524 #define RXBD_ERR (RXBD_LARGE | RXBD_SHORT | RXBD_NONOCTET \
525 | RXBD_CRCERR | RXBD_OVERRUN \
528 /* Rx FCB status field bits */
529 #define RXFCB_VLN 0x8000
530 #define RXFCB_IP 0x4000
531 #define RXFCB_IP6 0x2000
532 #define RXFCB_TUP 0x1000
533 #define RXFCB_CIP 0x0800
534 #define RXFCB_CTU 0x0400
535 #define RXFCB_EIP 0x0200
536 #define RXFCB_ETU 0x0100
537 #define RXFCB_CSUM_MASK 0x0f00
538 #define RXFCB_PERR_MASK 0x000c
539 #define RXFCB_PERR_BADL3 0x0008
541 #define GFAR_INT_NAME_MAX (IFNAMSIZ + 6) /* '_g#_xx' */
547 __be16 status; /* Status Fields */
548 __be16 length; /* Buffer length */
552 __be32 bufPtr; /* Buffer Pointer */
557 u8 ptp; /* Flag to enable tx timestamping */
558 u8 l4os; /* Level 4 Header Offset */
559 u8 l3os; /* Level 3 Header Offset */
560 __be16 phcs; /* Pseudo-header Checksum */
561 __be16 vlctl; /* VLAN control word */
568 __be16 status; /* Status Fields */
569 __be16 length; /* Buffer Length */
573 __be32 bufPtr; /* Buffer Pointer */
578 u8 rq; /* Receive Queue index */
579 u8 pro; /* Layer 4 Protocol */
581 __be16 vlctl; /* VLAN control word */
584 struct gianfar_skb_cb {
585 unsigned int bytes_sent; /* bytes-on-wire (i.e. no FCB) */
588 #define GFAR_CB(skb) ((struct gianfar_skb_cb *)((skb)->cb))
592 u32 tr64; /* 0x.680 - Transmit and Receive 64-byte Frame Counter */
593 u32 tr127; /* 0x.684 - Transmit and Receive 65-127 byte Frame Counter */
594 u32 tr255; /* 0x.688 - Transmit and Receive 128-255 byte Frame Counter */
595 u32 tr511; /* 0x.68c - Transmit and Receive 256-511 byte Frame Counter */
596 u32 tr1k; /* 0x.690 - Transmit and Receive 512-1023 byte Frame Counter */
597 u32 trmax; /* 0x.694 - Transmit and Receive 1024-1518 byte Frame Counter */
598 u32 trmgv; /* 0x.698 - Transmit and Receive 1519-1522 byte Good VLAN Frame */
599 u32 rbyt; /* 0x.69c - Receive Byte Counter */
600 u32 rpkt; /* 0x.6a0 - Receive Packet Counter */
601 u32 rfcs; /* 0x.6a4 - Receive FCS Error Counter */
602 u32 rmca; /* 0x.6a8 - Receive Multicast Packet Counter */
603 u32 rbca; /* 0x.6ac - Receive Broadcast Packet Counter */
604 u32 rxcf; /* 0x.6b0 - Receive Control Frame Packet Counter */
605 u32 rxpf; /* 0x.6b4 - Receive Pause Frame Packet Counter */
606 u32 rxuo; /* 0x.6b8 - Receive Unknown OP Code Counter */
607 u32 raln; /* 0x.6bc - Receive Alignment Error Counter */
608 u32 rflr; /* 0x.6c0 - Receive Frame Length Error Counter */
609 u32 rcde; /* 0x.6c4 - Receive Code Error Counter */
610 u32 rcse; /* 0x.6c8 - Receive Carrier Sense Error Counter */
611 u32 rund; /* 0x.6cc - Receive Undersize Packet Counter */
612 u32 rovr; /* 0x.6d0 - Receive Oversize Packet Counter */
613 u32 rfrg; /* 0x.6d4 - Receive Fragments Counter */
614 u32 rjbr; /* 0x.6d8 - Receive Jabber Counter */
615 u32 rdrp; /* 0x.6dc - Receive Drop Counter */
616 u32 tbyt; /* 0x.6e0 - Transmit Byte Counter Counter */
617 u32 tpkt; /* 0x.6e4 - Transmit Packet Counter */
618 u32 tmca; /* 0x.6e8 - Transmit Multicast Packet Counter */
619 u32 tbca; /* 0x.6ec - Transmit Broadcast Packet Counter */
620 u32 txpf; /* 0x.6f0 - Transmit Pause Control Frame Counter */
621 u32 tdfr; /* 0x.6f4 - Transmit Deferral Packet Counter */
622 u32 tedf; /* 0x.6f8 - Transmit Excessive Deferral Packet Counter */
623 u32 tscl; /* 0x.6fc - Transmit Single Collision Packet Counter */
624 u32 tmcl; /* 0x.700 - Transmit Multiple Collision Packet Counter */
625 u32 tlcl; /* 0x.704 - Transmit Late Collision Packet Counter */
626 u32 txcl; /* 0x.708 - Transmit Excessive Collision Packet Counter */
627 u32 tncl; /* 0x.70c - Transmit Total Collision Counter */
629 u32 tdrp; /* 0x.714 - Transmit Drop Frame Counter */
630 u32 tjbr; /* 0x.718 - Transmit Jabber Frame Counter */
631 u32 tfcs; /* 0x.71c - Transmit FCS Error Counter */
632 u32 txcf; /* 0x.720 - Transmit Control Frame Counter */
633 u32 tovr; /* 0x.724 - Transmit Oversize Frame Counter */
634 u32 tund; /* 0x.728 - Transmit Undersize Frame Counter */
635 u32 tfrg; /* 0x.72c - Transmit Fragments Frame Counter */
636 u32 car1; /* 0x.730 - Carry Register One */
637 u32 car2; /* 0x.734 - Carry Register Two */
638 u32 cam1; /* 0x.738 - Carry Mask Register One */
639 u32 cam2; /* 0x.73c - Carry Mask Register Two */
642 struct gfar_extra_stats {
645 atomic64_t rx_nonoctet;
646 atomic64_t rx_crcerr;
647 atomic64_t rx_overrun;
653 atomic64_t tx_underrun;
654 atomic64_t rx_skbmissing;
655 atomic64_t tx_timeout;
658 #define GFAR_RMON_LEN ((sizeof(struct rmon_mib) - 16)/sizeof(u32))
659 #define GFAR_EXTRA_STATS_LEN \
660 (sizeof(struct gfar_extra_stats)/sizeof(atomic64_t))
662 /* Number of stats exported via ethtool */
663 #define GFAR_STATS_LEN (GFAR_RMON_LEN + GFAR_EXTRA_STATS_LEN)
666 u32 tsec_id; /* 0x.000 - Controller ID register */
667 u32 tsec_id2; /* 0x.004 - Controller ID2 register */
669 u32 ievent; /* 0x.010 - Interrupt Event Register */
670 u32 imask; /* 0x.014 - Interrupt Mask Register */
671 u32 edis; /* 0x.018 - Error Disabled Register */
672 u32 emapg; /* 0x.01c - Group Error mapping register */
673 u32 ecntrl; /* 0x.020 - Ethernet Control Register */
674 u32 minflr; /* 0x.024 - Minimum Frame Length Register */
675 u32 ptv; /* 0x.028 - Pause Time Value Register */
676 u32 dmactrl; /* 0x.02c - DMA Control Register */
677 u32 tbipa; /* 0x.030 - TBI PHY Address Register */
679 u32 fifo_rx_pause; /* 0x.050 - FIFO receive pause start threshold
681 u32 fifo_rx_pause_shutoff; /* x.054 - FIFO receive starve shutoff
683 u32 fifo_rx_alarm; /* 0x.058 - FIFO receive alarm start threshold
685 u32 fifo_rx_alarm_shutoff; /*0x.05c - FIFO receive alarm starve
688 u32 fifo_tx_thr; /* 0x.08c - FIFO transmit threshold register */
690 u32 fifo_tx_starve; /* 0x.098 - FIFO transmit starve register */
691 u32 fifo_tx_starve_shutoff; /* 0x.09c - FIFO transmit starve shutoff register */
693 u32 tctrl; /* 0x.100 - Transmit Control Register */
694 u32 tstat; /* 0x.104 - Transmit Status Register */
695 u32 dfvlan; /* 0x.108 - Default VLAN Control word */
696 u32 tbdlen; /* 0x.10c - Transmit Buffer Descriptor Data Length Register */
697 u32 txic; /* 0x.110 - Transmit Interrupt Coalescing Configuration Register */
698 u32 tqueue; /* 0x.114 - Transmit queue control register */
700 u32 tr03wt; /* 0x.140 - TxBD Rings 0-3 round-robin weightings */
701 u32 tr47wt; /* 0x.144 - TxBD Rings 4-7 round-robin weightings */
703 u32 tbdbph; /* 0x.17c - Tx data buffer pointer high */
705 u32 tbptr0; /* 0x.184 - TxBD Pointer for ring 0 */
707 u32 tbptr1; /* 0x.18c - TxBD Pointer for ring 1 */
709 u32 tbptr2; /* 0x.194 - TxBD Pointer for ring 2 */
711 u32 tbptr3; /* 0x.19c - TxBD Pointer for ring 3 */
713 u32 tbptr4; /* 0x.1a4 - TxBD Pointer for ring 4 */
715 u32 tbptr5; /* 0x.1ac - TxBD Pointer for ring 5 */
717 u32 tbptr6; /* 0x.1b4 - TxBD Pointer for ring 6 */
719 u32 tbptr7; /* 0x.1bc - TxBD Pointer for ring 7 */
721 u32 tbaseh; /* 0x.200 - TxBD base address high */
722 u32 tbase0; /* 0x.204 - TxBD Base Address of ring 0 */
724 u32 tbase1; /* 0x.20c - TxBD Base Address of ring 1 */
726 u32 tbase2; /* 0x.214 - TxBD Base Address of ring 2 */
728 u32 tbase3; /* 0x.21c - TxBD Base Address of ring 3 */
730 u32 tbase4; /* 0x.224 - TxBD Base Address of ring 4 */
732 u32 tbase5; /* 0x.22c - TxBD Base Address of ring 5 */
734 u32 tbase6; /* 0x.234 - TxBD Base Address of ring 6 */
736 u32 tbase7; /* 0x.23c - TxBD Base Address of ring 7 */
738 u32 rctrl; /* 0x.300 - Receive Control Register */
739 u32 rstat; /* 0x.304 - Receive Status Register */
741 u32 rxic; /* 0x.310 - Receive Interrupt Coalescing Configuration Register */
742 u32 rqueue; /* 0x.314 - Receive queue control register */
743 u32 rir0; /* 0x.318 - Ring mapping register 0 */
744 u32 rir1; /* 0x.31c - Ring mapping register 1 */
745 u32 rir2; /* 0x.320 - Ring mapping register 2 */
746 u32 rir3; /* 0x.324 - Ring mapping register 3 */
748 u32 rbifx; /* 0x.330 - Receive bit field extract control register */
749 u32 rqfar; /* 0x.334 - Receive queue filing table address register */
750 u32 rqfcr; /* 0x.338 - Receive queue filing table control register */
751 u32 rqfpr; /* 0x.33c - Receive queue filing table property register */
752 u32 mrblr; /* 0x.340 - Maximum Receive Buffer Length Register */
754 u32 rbdbph; /* 0x.37c - Rx data buffer pointer high */
756 u32 rbptr0; /* 0x.384 - RxBD pointer for ring 0 */
758 u32 rbptr1; /* 0x.38c - RxBD pointer for ring 1 */
760 u32 rbptr2; /* 0x.394 - RxBD pointer for ring 2 */
762 u32 rbptr3; /* 0x.39c - RxBD pointer for ring 3 */
764 u32 rbptr4; /* 0x.3a4 - RxBD pointer for ring 4 */
766 u32 rbptr5; /* 0x.3ac - RxBD pointer for ring 5 */
768 u32 rbptr6; /* 0x.3b4 - RxBD pointer for ring 6 */
770 u32 rbptr7; /* 0x.3bc - RxBD pointer for ring 7 */
772 u32 rbaseh; /* 0x.400 - RxBD base address high */
773 u32 rbase0; /* 0x.404 - RxBD base address of ring 0 */
775 u32 rbase1; /* 0x.40c - RxBD base address of ring 1 */
777 u32 rbase2; /* 0x.414 - RxBD base address of ring 2 */
779 u32 rbase3; /* 0x.41c - RxBD base address of ring 3 */
781 u32 rbase4; /* 0x.424 - RxBD base address of ring 4 */
783 u32 rbase5; /* 0x.42c - RxBD base address of ring 5 */
785 u32 rbase6; /* 0x.434 - RxBD base address of ring 6 */
787 u32 rbase7; /* 0x.43c - RxBD base address of ring 7 */
789 u32 maccfg1; /* 0x.500 - MAC Configuration 1 Register */
790 u32 maccfg2; /* 0x.504 - MAC Configuration 2 Register */
791 u32 ipgifg; /* 0x.508 - Inter Packet Gap/Inter Frame Gap Register */
792 u32 hafdup; /* 0x.50c - Half Duplex Register */
793 u32 maxfrm; /* 0x.510 - Maximum Frame Length Register */
795 u8 gfar_mii_regs[24]; /* See gianfar_phy.h */
796 u32 ifctrl; /* 0x.538 - Interface control register */
797 u32 ifstat; /* 0x.53c - Interface Status Register */
798 u32 macstnaddr1; /* 0x.540 - Station Address Part 1 Register */
799 u32 macstnaddr2; /* 0x.544 - Station Address Part 2 Register */
800 u32 mac01addr1; /* 0x.548 - MAC exact match address 1, part 1 */
801 u32 mac01addr2; /* 0x.54c - MAC exact match address 1, part 2 */
802 u32 mac02addr1; /* 0x.550 - MAC exact match address 2, part 1 */
803 u32 mac02addr2; /* 0x.554 - MAC exact match address 2, part 2 */
804 u32 mac03addr1; /* 0x.558 - MAC exact match address 3, part 1 */
805 u32 mac03addr2; /* 0x.55c - MAC exact match address 3, part 2 */
806 u32 mac04addr1; /* 0x.560 - MAC exact match address 4, part 1 */
807 u32 mac04addr2; /* 0x.564 - MAC exact match address 4, part 2 */
808 u32 mac05addr1; /* 0x.568 - MAC exact match address 5, part 1 */
809 u32 mac05addr2; /* 0x.56c - MAC exact match address 5, part 2 */
810 u32 mac06addr1; /* 0x.570 - MAC exact match address 6, part 1 */
811 u32 mac06addr2; /* 0x.574 - MAC exact match address 6, part 2 */
812 u32 mac07addr1; /* 0x.578 - MAC exact match address 7, part 1 */
813 u32 mac07addr2; /* 0x.57c - MAC exact match address 7, part 2 */
814 u32 mac08addr1; /* 0x.580 - MAC exact match address 8, part 1 */
815 u32 mac08addr2; /* 0x.584 - MAC exact match address 8, part 2 */
816 u32 mac09addr1; /* 0x.588 - MAC exact match address 9, part 1 */
817 u32 mac09addr2; /* 0x.58c - MAC exact match address 9, part 2 */
818 u32 mac10addr1; /* 0x.590 - MAC exact match address 10, part 1*/
819 u32 mac10addr2; /* 0x.594 - MAC exact match address 10, part 2*/
820 u32 mac11addr1; /* 0x.598 - MAC exact match address 11, part 1*/
821 u32 mac11addr2; /* 0x.59c - MAC exact match address 11, part 2*/
822 u32 mac12addr1; /* 0x.5a0 - MAC exact match address 12, part 1*/
823 u32 mac12addr2; /* 0x.5a4 - MAC exact match address 12, part 2*/
824 u32 mac13addr1; /* 0x.5a8 - MAC exact match address 13, part 1*/
825 u32 mac13addr2; /* 0x.5ac - MAC exact match address 13, part 2*/
826 u32 mac14addr1; /* 0x.5b0 - MAC exact match address 14, part 1*/
827 u32 mac14addr2; /* 0x.5b4 - MAC exact match address 14, part 2*/
828 u32 mac15addr1; /* 0x.5b8 - MAC exact match address 15, part 1*/
829 u32 mac15addr2; /* 0x.5bc - MAC exact match address 15, part 2*/
831 struct rmon_mib rmon; /* 0x.680-0x.73c */
832 u32 rrej; /* 0x.740 - Receive filer rejected packet counter */
834 u32 igaddr0; /* 0x.800 - Indivdual/Group address register 0*/
835 u32 igaddr1; /* 0x.804 - Indivdual/Group address register 1*/
836 u32 igaddr2; /* 0x.808 - Indivdual/Group address register 2*/
837 u32 igaddr3; /* 0x.80c - Indivdual/Group address register 3*/
838 u32 igaddr4; /* 0x.810 - Indivdual/Group address register 4*/
839 u32 igaddr5; /* 0x.814 - Indivdual/Group address register 5*/
840 u32 igaddr6; /* 0x.818 - Indivdual/Group address register 6*/
841 u32 igaddr7; /* 0x.81c - Indivdual/Group address register 7*/
843 u32 gaddr0; /* 0x.880 - Group address register 0 */
844 u32 gaddr1; /* 0x.884 - Group address register 1 */
845 u32 gaddr2; /* 0x.888 - Group address register 2 */
846 u32 gaddr3; /* 0x.88c - Group address register 3 */
847 u32 gaddr4; /* 0x.890 - Group address register 4 */
848 u32 gaddr5; /* 0x.894 - Group address register 5 */
849 u32 gaddr6; /* 0x.898 - Group address register 6 */
850 u32 gaddr7; /* 0x.89c - Group address register 7 */
852 u32 fifocfg; /* 0x.a00 - FIFO interface config register */
855 u32 attr; /* 0x.bf8 - Attributes Register */
856 u32 attreli; /* 0x.bfc - Attributes Extract Length and Extract Index Register */
857 u32 rqprm0; /* 0x.c00 - Receive queue parameters register 0 */
858 u32 rqprm1; /* 0x.c04 - Receive queue parameters register 1 */
859 u32 rqprm2; /* 0x.c08 - Receive queue parameters register 2 */
860 u32 rqprm3; /* 0x.c0c - Receive queue parameters register 3 */
861 u32 rqprm4; /* 0x.c10 - Receive queue parameters register 4 */
862 u32 rqprm5; /* 0x.c14 - Receive queue parameters register 5 */
863 u32 rqprm6; /* 0x.c18 - Receive queue parameters register 6 */
864 u32 rqprm7; /* 0x.c1c - Receive queue parameters register 7 */
866 u32 rfbptr0; /* 0x.c44 - Last free RxBD pointer for ring 0 */
868 u32 rfbptr1; /* 0x.c4c - Last free RxBD pointer for ring 1 */
870 u32 rfbptr2; /* 0x.c54 - Last free RxBD pointer for ring 2 */
872 u32 rfbptr3; /* 0x.c5c - Last free RxBD pointer for ring 3 */
874 u32 rfbptr4; /* 0x.c64 - Last free RxBD pointer for ring 4 */
876 u32 rfbptr5; /* 0x.c6c - Last free RxBD pointer for ring 5 */
878 u32 rfbptr6; /* 0x.c74 - Last free RxBD pointer for ring 6 */
880 u32 rfbptr7; /* 0x.c7c - Last free RxBD pointer for ring 7 */
883 u32 isrg0; /* 0x.eb0 - Interrupt steering group 0 register */
884 u32 isrg1; /* 0x.eb4 - Interrupt steering group 1 register */
885 u32 isrg2; /* 0x.eb8 - Interrupt steering group 2 register */
886 u32 isrg3; /* 0x.ebc - Interrupt steering group 3 register */
888 u32 rxic0; /* 0x.ed0 - Ring 0 Rx interrupt coalescing */
889 u32 rxic1; /* 0x.ed4 - Ring 1 Rx interrupt coalescing */
890 u32 rxic2; /* 0x.ed8 - Ring 2 Rx interrupt coalescing */
891 u32 rxic3; /* 0x.edc - Ring 3 Rx interrupt coalescing */
892 u32 rxic4; /* 0x.ee0 - Ring 4 Rx interrupt coalescing */
893 u32 rxic5; /* 0x.ee4 - Ring 5 Rx interrupt coalescing */
894 u32 rxic6; /* 0x.ee8 - Ring 6 Rx interrupt coalescing */
895 u32 rxic7; /* 0x.eec - Ring 7 Rx interrupt coalescing */
897 u32 txic0; /* 0x.f10 - Ring 0 Tx interrupt coalescing */
898 u32 txic1; /* 0x.f14 - Ring 1 Tx interrupt coalescing */
899 u32 txic2; /* 0x.f18 - Ring 2 Tx interrupt coalescing */
900 u32 txic3; /* 0x.f1c - Ring 3 Tx interrupt coalescing */
901 u32 txic4; /* 0x.f20 - Ring 4 Tx interrupt coalescing */
902 u32 txic5; /* 0x.f24 - Ring 5 Tx interrupt coalescing */
903 u32 txic6; /* 0x.f28 - Ring 6 Tx interrupt coalescing */
904 u32 txic7; /* 0x.f2c - Ring 7 Tx interrupt coalescing */
908 /* Flags related to gianfar device features */
909 #define FSL_GIANFAR_DEV_HAS_GIGABIT 0x00000001
910 #define FSL_GIANFAR_DEV_HAS_COALESCE 0x00000002
911 #define FSL_GIANFAR_DEV_HAS_RMON 0x00000004
912 #define FSL_GIANFAR_DEV_HAS_MULTI_INTR 0x00000008
913 #define FSL_GIANFAR_DEV_HAS_CSUM 0x00000010
914 #define FSL_GIANFAR_DEV_HAS_VLAN 0x00000020
915 #define FSL_GIANFAR_DEV_HAS_EXTENDED_HASH 0x00000040
916 #define FSL_GIANFAR_DEV_HAS_MAGIC_PACKET 0x00000100
917 #define FSL_GIANFAR_DEV_HAS_BD_STASHING 0x00000200
918 #define FSL_GIANFAR_DEV_HAS_BUF_STASHING 0x00000400
919 #define FSL_GIANFAR_DEV_HAS_TIMER 0x00000800
922 #define DEFAULT_MAPPING 0xAA
924 #define DEFAULT_MAPPING 0xFF
927 #define ISRG_RR0 0x80000000
928 #define ISRG_TR0 0x00800000
930 /* The same driver can operate in two modes */
931 /* SQ_SG_MODE: Single Queue Single Group Mode
932 * (Backward compatible mode)
933 * MQ_MG_MODE: Multi Queue Multi Group mode
940 /* GFAR_SQ_POLLING: Single Queue NAPI polling mode
941 * The driver supports a single pair of RX/Tx queues
942 * per interrupt group (Rx/Tx int line). MQ_MG mode
943 * devices have 2 interrupt groups, so the device will
944 * have a total of 2 Tx and 2 Rx queues in this case.
945 * GFAR_MQ_POLLING: Multi Queue NAPI polling mode
946 * The driver supports all the 8 Rx and Tx HW queues
947 * each queue mapped by the Device Tree to one of
948 * the 2 interrupt groups. This mode implies significant
949 * processing overhead (CPU and controller level).
951 enum gfar_poll_mode {
960 unsigned long tx_packets;
961 unsigned long tx_bytes;
965 * struct gfar_priv_tx_q - per tx queue structure
966 * @txlock: per queue tx spin lock
967 * @tx_skbuff:skb pointers
968 * @skb_curtx: to be used skb pointer
969 * @skb_dirtytx:the last used skb pointer
970 * @stats: bytes/packets stats
971 * @qindex: index of this queue
972 * @dev: back pointer to the dev structure
973 * @grp: back pointer to the group to which this queue belongs
974 * @tx_bd_base: First tx buffer descriptor
975 * @cur_tx: Next free ring entry
976 * @dirty_tx: First buffer in line to be transmitted
977 * @tx_ring_size: Tx ring size
978 * @num_txbdfree: number of free TxBds
979 * @txcoalescing: enable/disable tx coalescing
980 * @txic: transmit interrupt coalescing value
981 * @txcount: coalescing value if based on tx frame count
982 * @txtime: coalescing value if based on time
984 struct gfar_priv_tx_q {
986 spinlock_t txlock __attribute__ ((aligned (SMP_CACHE_BYTES)));
987 struct txbd8 *tx_bd_base;
988 struct txbd8 *cur_tx;
989 unsigned int num_txbdfree;
990 unsigned short skb_curtx;
991 unsigned short tx_ring_size;
992 struct tx_q_stats stats;
993 struct gfar_priv_grp *grp;
995 struct net_device *dev;
996 struct sk_buff **tx_skbuff;
997 struct txbd8 *dirty_tx;
998 unsigned short skb_dirtytx;
999 unsigned short qindex;
1000 /* Configuration info for the coalescing features */
1001 unsigned int txcoalescing;
1003 dma_addr_t tx_bd_dma_base;
1007 * Per RX queue stats
1010 unsigned long rx_packets;
1011 unsigned long rx_bytes;
1012 unsigned long rx_dropped;
1016 * struct gfar_priv_rx_q - per rx queue structure
1017 * @rx_skbuff: skb pointers
1018 * @skb_currx: currently use skb pointer
1019 * @rx_bd_base: First rx buffer descriptor
1020 * @cur_rx: Next free rx ring entry
1021 * @qindex: index of this queue
1022 * @dev: back pointer to the dev structure
1023 * @rx_ring_size: Rx ring size
1024 * @rxcoalescing: enable/disable rx-coalescing
1025 * @rxic: receive interrupt coalescing vlaue
1028 struct gfar_priv_rx_q {
1029 struct sk_buff **rx_skbuff __aligned(SMP_CACHE_BYTES);
1030 dma_addr_t rx_bd_dma_base;
1031 struct rxbd8 *rx_bd_base;
1032 struct rxbd8 *cur_rx;
1033 struct net_device *dev;
1034 struct gfar_priv_grp *grp;
1035 struct rx_q_stats stats;
1038 unsigned int rx_ring_size;
1039 /* RX Coalescing values */
1040 unsigned char rxcoalescing;
1042 u32 __iomem *rfbptr;
1045 enum gfar_irqinfo_id {
1052 struct gfar_irqinfo {
1054 char name[GFAR_INT_NAME_MAX];
1058 * struct gfar_priv_grp - per group structure
1059 * @napi: the napi poll function
1060 * @priv: back pointer to the priv structure
1061 * @regs: the ioremapped register space for this group
1062 * @irqinfo: TX/RX/ER irq data for this group
1065 struct gfar_priv_grp {
1066 spinlock_t grplock __aligned(SMP_CACHE_BYTES);
1067 struct napi_struct napi_rx;
1068 struct napi_struct napi_tx;
1069 struct gfar __iomem *regs;
1070 struct gfar_priv_tx_q *tx_queue;
1071 struct gfar_priv_rx_q *rx_queue;
1075 struct gfar_private *priv;
1076 unsigned long num_tx_queues;
1077 unsigned long tx_bit_map;
1078 unsigned long num_rx_queues;
1079 unsigned long rx_bit_map;
1081 struct gfar_irqinfo *irqinfo[GFAR_NUM_IRQS];
1084 #define gfar_irq(grp, ID) \
1085 ((grp)->irqinfo[GFAR_##ID])
1088 GFAR_ERRATA_74 = 0x01,
1089 GFAR_ERRATA_76 = 0x02,
1090 GFAR_ERRATA_A002 = 0x04,
1091 GFAR_ERRATA_12 = 0x08, /* a.k.a errata eTSEC49 */
1094 enum gfar_dev_state {
1099 /* Struct stolen almost completely (and shamelessly) from the FCC enet source
1100 * (Ok, that's not so true anymore, but there is a family resemblance)
1101 * The GFAR buffer descriptors track the ring buffers. The rx_bd_base
1102 * and tx_bd_base always point to the currently available buffer.
1103 * The dirty_tx tracks the current buffer that is being sent by the
1104 * controller. The cur_tx and dirty_tx are equal under both completely
1105 * empty and completely full conditions. The empty/ready indicator in
1106 * the buffer descriptor determines the actual condition.
1108 struct gfar_private {
1110 struct net_device *ndev;
1111 enum gfar_errata errata;
1112 unsigned int rx_buffer_size;
1118 /* HW time stamping enabled flag */
1122 struct gfar_priv_tx_q *tx_queue[MAX_TX_QS];
1123 struct gfar_priv_rx_q *rx_queue[MAX_RX_QS];
1124 struct gfar_priv_grp gfargrp[MAXGROUPS];
1126 unsigned long state;
1128 unsigned short mode;
1129 unsigned short poll_mode;
1130 unsigned int num_tx_queues;
1131 unsigned int num_rx_queues;
1132 unsigned int num_grps;
1135 /* Network Statistics */
1136 struct gfar_extra_stats extra_stats;
1139 phy_interface_t interface;
1140 struct device_node *phy_node;
1141 struct device_node *tbi_node;
1142 struct phy_device *phydev;
1143 struct mii_bus *mii_bus;
1148 /* Bitfield update lock */
1151 uint32_t msg_enable;
1153 struct work_struct reset_task;
1155 struct platform_device *ofdev;
1160 /* Wake-on-LAN enabled */
1162 /* Enable priorty based Tx scheduling in Hw */
1164 /* Flow control flags */
1169 /* The total tx and rx ring size for the enabled queues */
1170 unsigned int total_tx_ring_size;
1171 unsigned int total_rx_ring_size;
1176 /* RX per device parameters */
1177 unsigned int rx_stash_size;
1178 unsigned int rx_stash_index;
1182 /* RX queue filer rule set*/
1183 struct ethtool_rx_list rx_list;
1184 struct mutex rx_queue_access;
1186 /* Hash registers and their width */
1187 u32 __iomem *hash_regs[16];
1191 unsigned int ftp_rqfpr[MAX_FILER_IDX + 1];
1192 unsigned int ftp_rqfcr[MAX_FILER_IDX + 1];
1196 static inline int gfar_has_errata(struct gfar_private *priv,
1197 enum gfar_errata err)
1199 return priv->errata & err;
1202 static inline u32 gfar_read(unsigned __iomem *addr)
1205 val = ioread32be(addr);
1209 static inline void gfar_write(unsigned __iomem *addr, u32 val)
1211 iowrite32be(val, addr);
1214 static inline void gfar_write_filer(struct gfar_private *priv,
1215 unsigned int far, unsigned int fcr, unsigned int fpr)
1217 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1219 gfar_write(®s->rqfar, far);
1220 gfar_write(®s->rqfcr, fcr);
1221 gfar_write(®s->rqfpr, fpr);
1224 static inline void gfar_read_filer(struct gfar_private *priv,
1225 unsigned int far, unsigned int *fcr, unsigned int *fpr)
1227 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1229 gfar_write(®s->rqfar, far);
1230 *fcr = gfar_read(®s->rqfcr);
1231 *fpr = gfar_read(®s->rqfpr);
1234 static inline void gfar_write_isrg(struct gfar_private *priv)
1236 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1237 u32 __iomem *baddr = ®s->isrg0;
1241 for (grp_idx = 0; grp_idx < priv->num_grps; grp_idx++) {
1242 struct gfar_priv_grp *grp = &priv->gfargrp[grp_idx];
1244 for_each_set_bit(i, &grp->rx_bit_map, priv->num_rx_queues) {
1245 isrg |= (ISRG_RR0 >> i);
1248 for_each_set_bit(i, &grp->tx_bit_map, priv->num_tx_queues) {
1249 isrg |= (ISRG_TR0 >> i);
1252 gfar_write(baddr, isrg);
1259 static inline int gfar_is_dma_stopped(struct gfar_private *priv)
1261 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1263 return ((gfar_read(®s->ievent) & (IEVENT_GRSC | IEVENT_GTSC)) ==
1264 (IEVENT_GRSC | IEVENT_GTSC));
1267 static inline int gfar_is_rx_dma_stopped(struct gfar_private *priv)
1269 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1271 return gfar_read(®s->ievent) & IEVENT_GRSC;
1274 static inline void gfar_wmb(void)
1276 #if defined(CONFIG_PPC)
1277 /* The powerpc-specific eieio() is used, as wmb() has too strong
1278 * semantics (it requires synchronization between cacheable and
1279 * uncacheable mappings, which eieio() doesn't provide and which we
1280 * don't need), thus requiring a more expensive sync instruction. At
1281 * some point, the set of architecture-independent barrier functions
1282 * should be expanded to include weaker barriers.
1286 wmb(); /* order write acesses for BD (or FCB) fields */
1290 static inline void gfar_clear_txbd_status(struct txbd8 *bdp)
1292 u32 lstatus = be32_to_cpu(bdp->lstatus);
1294 lstatus &= BD_LFLAG(TXBD_WRAP);
1295 bdp->lstatus = cpu_to_be32(lstatus);
1298 irqreturn_t gfar_receive(int irq, void *dev_id);
1299 int startup_gfar(struct net_device *dev);
1300 void stop_gfar(struct net_device *dev);
1301 void reset_gfar(struct net_device *dev);
1302 void gfar_mac_reset(struct gfar_private *priv);
1303 void gfar_halt(struct gfar_private *priv);
1304 void gfar_start(struct gfar_private *priv);
1305 void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev, int enable,
1306 u32 regnum, u32 read);
1307 void gfar_configure_coalescing_all(struct gfar_private *priv);
1308 int gfar_set_features(struct net_device *dev, netdev_features_t features);
1310 extern const struct ethtool_ops gfar_ethtool_ops;
1312 #define MAX_FILER_CACHE_IDX (2*(MAX_FILER_IDX))
1314 #define RQFCR_PID_PRI_MASK 0xFFFFFFF8
1315 #define RQFCR_PID_L4P_MASK 0xFFFFFF00
1316 #define RQFCR_PID_VID_MASK 0xFFFFF000
1317 #define RQFCR_PID_PORT_MASK 0xFFFF0000
1318 #define RQFCR_PID_MAC_MASK 0xFF000000
1320 struct gfar_mask_entry {
1321 unsigned int mask; /* The mask value which is valid form start to end */
1324 unsigned int block; /* Same block values indicate depended entries */
1327 /* Represents a receive filer table entry */
1328 struct gfar_filer_entry {
1334 /* The 20 additional entries are a shadow for one extra element */
1335 struct filer_table {
1337 struct gfar_filer_entry fe[MAX_FILER_CACHE_IDX + 20];
1340 /* The gianfar_ptp module will set this variable */
1341 extern int gfar_phc_index;
1343 #endif /* __GIANFAR_H */