1 /* 2 * drivers/net/ethernet/freescale/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 9 * Maintainer: Kumar Gala 10 * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com> 11 * 12 * Copyright 2002-2009, 2011 Freescale Semiconductor, Inc. 13 * 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. 18 * 19 * Still left to do: 20 * -Add support for module parameters 21 * -Add patch for ethtool phys id 22 */ 23 #ifndef __GIANFAR_H 24 #define __GIANFAR_H 25 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/init.h> 33 #include <linux/delay.h> 34 #include <linux/netdevice.h> 35 #include <linux/etherdevice.h> 36 #include <linux/skbuff.h> 37 #include <linux/spinlock.h> 38 #include <linux/mm.h> 39 #include <linux/mii.h> 40 #include <linux/phy.h> 41 42 #include <asm/io.h> 43 #include <asm/irq.h> 44 #include <asm/uaccess.h> 45 #include <linux/module.h> 46 #include <linux/crc32.h> 47 #include <linux/workqueue.h> 48 #include <linux/ethtool.h> 49 50 struct ethtool_flow_spec_container { 51 struct ethtool_rx_flow_spec fs; 52 struct list_head list; 53 }; 54 55 struct ethtool_rx_list { 56 struct list_head list; 57 unsigned int count; 58 }; 59 60 /* The maximum number of packets to be handled in one call of gfar_poll */ 61 #define GFAR_DEV_WEIGHT 64 62 63 /* Length for FCB */ 64 #define GMAC_FCB_LEN 8 65 66 /* Length for TxPAL */ 67 #define GMAC_TXPAL_LEN 16 68 69 /* Default padding amount */ 70 #define DEFAULT_PADDING 2 71 72 /* Number of bytes to align the rx bufs to */ 73 #define RXBUF_ALIGNMENT 64 74 75 /* The number of bytes which composes a unit for the purpose of 76 * allocating data buffers. ie-for any given MTU, the data buffer 77 * will be the next highest multiple of 512 bytes. */ 78 #define INCREMENTAL_BUFFER_SIZE 512 79 80 #define PHY_INIT_TIMEOUT 100000 81 82 #define DRV_NAME "gfar-enet" 83 extern const char gfar_driver_version[]; 84 85 /* MAXIMUM NUMBER OF QUEUES SUPPORTED */ 86 #define MAX_TX_QS 0x8 87 #define MAX_RX_QS 0x8 88 89 /* MAXIMUM NUMBER OF GROUPS SUPPORTED */ 90 #define MAXGROUPS 0x2 91 92 /* These need to be powers of 2 for this driver */ 93 #define DEFAULT_TX_RING_SIZE 256 94 #define DEFAULT_RX_RING_SIZE 256 95 96 #define GFAR_RX_MAX_RING_SIZE 256 97 #define GFAR_TX_MAX_RING_SIZE 256 98 99 #define GFAR_MAX_FIFO_THRESHOLD 511 100 #define GFAR_MAX_FIFO_STARVE 511 101 #define GFAR_MAX_FIFO_STARVE_OFF 511 102 103 #define DEFAULT_RX_BUFFER_SIZE 1536 104 #define TX_RING_MOD_MASK(size) (size-1) 105 #define RX_RING_MOD_MASK(size) (size-1) 106 #define JUMBO_BUFFER_SIZE 9728 107 #define JUMBO_FRAME_SIZE 9600 108 109 #define DEFAULT_FIFO_TX_THR 0x100 110 #define DEFAULT_FIFO_TX_STARVE 0x40 111 #define DEFAULT_FIFO_TX_STARVE_OFF 0x80 112 #define DEFAULT_BD_STASH 1 113 #define DEFAULT_STASH_LENGTH 96 114 #define DEFAULT_STASH_INDEX 0 115 116 /* The number of Exact Match registers */ 117 #define GFAR_EM_NUM 15 118 119 /* Latency of interface clock in nanoseconds */ 120 /* Interface clock latency , in this case, means the 121 * time described by a value of 1 in the interrupt 122 * coalescing registers' time fields. Since those fields 123 * refer to the time it takes for 64 clocks to pass, the 124 * latencies are as such: 125 * GBIT = 125MHz => 8ns/clock => 8*64 ns / tick 126 * 100 = 25 MHz => 40ns/clock => 40*64 ns / tick 127 * 10 = 2.5 MHz => 400ns/clock => 400*64 ns / tick 128 */ 129 #define GFAR_GBIT_TIME 512 130 #define GFAR_100_TIME 2560 131 #define GFAR_10_TIME 25600 132 133 #define DEFAULT_TX_COALESCE 1 134 #define DEFAULT_TXCOUNT 16 135 #define DEFAULT_TXTIME 21 136 137 #define DEFAULT_RXTIME 21 138 139 #define DEFAULT_RX_COALESCE 0 140 #define DEFAULT_RXCOUNT 0 141 142 #define GFAR_SUPPORTED (SUPPORTED_10baseT_Half \ 143 | SUPPORTED_10baseT_Full \ 144 | SUPPORTED_100baseT_Half \ 145 | SUPPORTED_100baseT_Full \ 146 | SUPPORTED_Autoneg \ 147 | SUPPORTED_MII) 148 149 #define GFAR_SUPPORTED_GBIT (SUPPORTED_1000baseT_Full \ 150 | SUPPORTED_Pause \ 151 | SUPPORTED_Asym_Pause) 152 153 /* TBI register addresses */ 154 #define MII_TBICON 0x11 155 156 /* TBICON register bit fields */ 157 #define TBICON_CLK_SELECT 0x0020 158 159 /* MAC register bits */ 160 #define MACCFG1_SOFT_RESET 0x80000000 161 #define MACCFG1_RESET_RX_MC 0x00080000 162 #define MACCFG1_RESET_TX_MC 0x00040000 163 #define MACCFG1_RESET_RX_FUN 0x00020000 164 #define MACCFG1_RESET_TX_FUN 0x00010000 165 #define MACCFG1_LOOPBACK 0x00000100 166 #define MACCFG1_RX_FLOW 0x00000020 167 #define MACCFG1_TX_FLOW 0x00000010 168 #define MACCFG1_SYNCD_RX_EN 0x00000008 169 #define MACCFG1_RX_EN 0x00000004 170 #define MACCFG1_SYNCD_TX_EN 0x00000002 171 #define MACCFG1_TX_EN 0x00000001 172 173 #define MACCFG2_INIT_SETTINGS 0x00007205 174 #define MACCFG2_FULL_DUPLEX 0x00000001 175 #define MACCFG2_IF 0x00000300 176 #define MACCFG2_MII 0x00000100 177 #define MACCFG2_GMII 0x00000200 178 #define MACCFG2_HUGEFRAME 0x00000020 179 #define MACCFG2_LENGTHCHECK 0x00000010 180 #define MACCFG2_MPEN 0x00000008 181 182 #define ECNTRL_FIFM 0x00008000 183 #define ECNTRL_INIT_SETTINGS 0x00001000 184 #define ECNTRL_TBI_MODE 0x00000020 185 #define ECNTRL_REDUCED_MODE 0x00000010 186 #define ECNTRL_R100 0x00000008 187 #define ECNTRL_REDUCED_MII_MODE 0x00000004 188 #define ECNTRL_SGMII_MODE 0x00000002 189 190 #define MRBLR_INIT_SETTINGS DEFAULT_RX_BUFFER_SIZE 191 192 #define MINFLR_INIT_SETTINGS 0x00000040 193 194 /* Tqueue control */ 195 #define TQUEUE_EN0 0x00008000 196 #define TQUEUE_EN1 0x00004000 197 #define TQUEUE_EN2 0x00002000 198 #define TQUEUE_EN3 0x00001000 199 #define TQUEUE_EN4 0x00000800 200 #define TQUEUE_EN5 0x00000400 201 #define TQUEUE_EN6 0x00000200 202 #define TQUEUE_EN7 0x00000100 203 #define TQUEUE_EN_ALL 0x0000FF00 204 205 #define TR03WT_WT0_MASK 0xFF000000 206 #define TR03WT_WT1_MASK 0x00FF0000 207 #define TR03WT_WT2_MASK 0x0000FF00 208 #define TR03WT_WT3_MASK 0x000000FF 209 210 #define TR47WT_WT4_MASK 0xFF000000 211 #define TR47WT_WT5_MASK 0x00FF0000 212 #define TR47WT_WT6_MASK 0x0000FF00 213 #define TR47WT_WT7_MASK 0x000000FF 214 215 /* Rqueue control */ 216 #define RQUEUE_EX0 0x00800000 217 #define RQUEUE_EX1 0x00400000 218 #define RQUEUE_EX2 0x00200000 219 #define RQUEUE_EX3 0x00100000 220 #define RQUEUE_EX4 0x00080000 221 #define RQUEUE_EX5 0x00040000 222 #define RQUEUE_EX6 0x00020000 223 #define RQUEUE_EX7 0x00010000 224 #define RQUEUE_EX_ALL 0x00FF0000 225 226 #define RQUEUE_EN0 0x00000080 227 #define RQUEUE_EN1 0x00000040 228 #define RQUEUE_EN2 0x00000020 229 #define RQUEUE_EN3 0x00000010 230 #define RQUEUE_EN4 0x00000008 231 #define RQUEUE_EN5 0x00000004 232 #define RQUEUE_EN6 0x00000002 233 #define RQUEUE_EN7 0x00000001 234 #define RQUEUE_EN_ALL 0x000000FF 235 236 /* Init to do tx snooping for buffers and descriptors */ 237 #define DMACTRL_INIT_SETTINGS 0x000000c3 238 #define DMACTRL_GRS 0x00000010 239 #define DMACTRL_GTS 0x00000008 240 241 #define TSTAT_CLEAR_THALT_ALL 0xFF000000 242 #define TSTAT_CLEAR_THALT 0x80000000 243 #define TSTAT_CLEAR_THALT0 0x80000000 244 #define TSTAT_CLEAR_THALT1 0x40000000 245 #define TSTAT_CLEAR_THALT2 0x20000000 246 #define TSTAT_CLEAR_THALT3 0x10000000 247 #define TSTAT_CLEAR_THALT4 0x08000000 248 #define TSTAT_CLEAR_THALT5 0x04000000 249 #define TSTAT_CLEAR_THALT6 0x02000000 250 #define TSTAT_CLEAR_THALT7 0x01000000 251 252 /* Interrupt coalescing macros */ 253 #define IC_ICEN 0x80000000 254 #define IC_ICFT_MASK 0x1fe00000 255 #define IC_ICFT_SHIFT 21 256 #define mk_ic_icft(x) \ 257 (((unsigned int)x << IC_ICFT_SHIFT)&IC_ICFT_MASK) 258 #define IC_ICTT_MASK 0x0000ffff 259 #define mk_ic_ictt(x) (x&IC_ICTT_MASK) 260 261 #define mk_ic_value(count, time) (IC_ICEN | \ 262 mk_ic_icft(count) | \ 263 mk_ic_ictt(time)) 264 #define get_icft_value(ic) (((unsigned long)ic & IC_ICFT_MASK) >> \ 265 IC_ICFT_SHIFT) 266 #define get_ictt_value(ic) ((unsigned long)ic & IC_ICTT_MASK) 267 268 #define DEFAULT_TXIC mk_ic_value(DEFAULT_TXCOUNT, DEFAULT_TXTIME) 269 #define DEFAULT_RXIC mk_ic_value(DEFAULT_RXCOUNT, DEFAULT_RXTIME) 270 271 #define skip_bd(bdp, stride, base, ring_size) ({ \ 272 typeof(bdp) new_bd = (bdp) + (stride); \ 273 (new_bd >= (base) + (ring_size)) ? (new_bd - (ring_size)) : new_bd; }) 274 275 #define next_bd(bdp, base, ring_size) skip_bd(bdp, 1, base, ring_size) 276 277 #define RCTRL_TS_ENABLE 0x01000000 278 #define RCTRL_PAL_MASK 0x001f0000 279 #define RCTRL_VLEX 0x00002000 280 #define RCTRL_FILREN 0x00001000 281 #define RCTRL_GHTX 0x00000400 282 #define RCTRL_IPCSEN 0x00000200 283 #define RCTRL_TUCSEN 0x00000100 284 #define RCTRL_PRSDEP_MASK 0x000000c0 285 #define RCTRL_PRSDEP_INIT 0x000000c0 286 #define RCTRL_PRSFM 0x00000020 287 #define RCTRL_PROM 0x00000008 288 #define RCTRL_EMEN 0x00000002 289 #define RCTRL_REQ_PARSER (RCTRL_VLEX | RCTRL_IPCSEN | \ 290 RCTRL_TUCSEN | RCTRL_FILREN) 291 #define RCTRL_CHECKSUMMING (RCTRL_IPCSEN | RCTRL_TUCSEN | \ 292 RCTRL_PRSDEP_INIT) 293 #define RCTRL_EXTHASH (RCTRL_GHTX) 294 #define RCTRL_VLAN (RCTRL_PRSDEP_INIT) 295 #define RCTRL_PADDING(x) ((x << 16) & RCTRL_PAL_MASK) 296 297 298 #define RSTAT_CLEAR_RHALT 0x00800000 299 #define RSTAT_CLEAR_RXF0 0x00000080 300 #define RSTAT_RXF_MASK 0x000000ff 301 302 #define TCTRL_IPCSEN 0x00004000 303 #define TCTRL_TUCSEN 0x00002000 304 #define TCTRL_VLINS 0x00001000 305 #define TCTRL_THDF 0x00000800 306 #define TCTRL_RFCPAUSE 0x00000010 307 #define TCTRL_TFCPAUSE 0x00000008 308 #define TCTRL_TXSCHED_MASK 0x00000006 309 #define TCTRL_TXSCHED_INIT 0x00000000 310 /* priority scheduling */ 311 #define TCTRL_TXSCHED_PRIO 0x00000002 312 /* weighted round-robin scheduling (WRRS) */ 313 #define TCTRL_TXSCHED_WRRS 0x00000004 314 /* default WRRS weight and policy setting, 315 * tailored to the tr03wt and tr47wt registers: 316 * equal weight for all Tx Qs, measured in 64byte units 317 */ 318 #define DEFAULT_WRRS_WEIGHT 0x18181818 319 320 #define TCTRL_INIT_CSUM (TCTRL_TUCSEN | TCTRL_IPCSEN) 321 322 #define IEVENT_INIT_CLEAR 0xffffffff 323 #define IEVENT_BABR 0x80000000 324 #define IEVENT_RXC 0x40000000 325 #define IEVENT_BSY 0x20000000 326 #define IEVENT_EBERR 0x10000000 327 #define IEVENT_MSRO 0x04000000 328 #define IEVENT_GTSC 0x02000000 329 #define IEVENT_BABT 0x01000000 330 #define IEVENT_TXC 0x00800000 331 #define IEVENT_TXE 0x00400000 332 #define IEVENT_TXB 0x00200000 333 #define IEVENT_TXF 0x00100000 334 #define IEVENT_LC 0x00040000 335 #define IEVENT_CRL 0x00020000 336 #define IEVENT_XFUN 0x00010000 337 #define IEVENT_RXB0 0x00008000 338 #define IEVENT_MAG 0x00000800 339 #define IEVENT_GRSC 0x00000100 340 #define IEVENT_RXF0 0x00000080 341 #define IEVENT_FIR 0x00000008 342 #define IEVENT_FIQ 0x00000004 343 #define IEVENT_DPE 0x00000002 344 #define IEVENT_PERR 0x00000001 345 #define IEVENT_RX_MASK (IEVENT_RXB0 | IEVENT_RXF0 | IEVENT_BSY) 346 #define IEVENT_TX_MASK (IEVENT_TXB | IEVENT_TXF) 347 #define IEVENT_RTX_MASK (IEVENT_RX_MASK | IEVENT_TX_MASK) 348 #define IEVENT_ERR_MASK \ 349 (IEVENT_RXC | IEVENT_BSY | IEVENT_EBERR | IEVENT_MSRO | \ 350 IEVENT_BABT | IEVENT_TXC | IEVENT_TXE | IEVENT_LC \ 351 | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR \ 352 | IEVENT_MAG | IEVENT_BABR) 353 354 #define IMASK_INIT_CLEAR 0x00000000 355 #define IMASK_BABR 0x80000000 356 #define IMASK_RXC 0x40000000 357 #define IMASK_BSY 0x20000000 358 #define IMASK_EBERR 0x10000000 359 #define IMASK_MSRO 0x04000000 360 #define IMASK_GTSC 0x02000000 361 #define IMASK_BABT 0x01000000 362 #define IMASK_TXC 0x00800000 363 #define IMASK_TXEEN 0x00400000 364 #define IMASK_TXBEN 0x00200000 365 #define IMASK_TXFEN 0x00100000 366 #define IMASK_LC 0x00040000 367 #define IMASK_CRL 0x00020000 368 #define IMASK_XFUN 0x00010000 369 #define IMASK_RXB0 0x00008000 370 #define IMASK_MAG 0x00000800 371 #define IMASK_GRSC 0x00000100 372 #define IMASK_RXFEN0 0x00000080 373 #define IMASK_FIR 0x00000008 374 #define IMASK_FIQ 0x00000004 375 #define IMASK_DPE 0x00000002 376 #define IMASK_PERR 0x00000001 377 #define IMASK_DEFAULT (IMASK_TXEEN | IMASK_TXFEN | IMASK_TXBEN | \ 378 IMASK_RXFEN0 | IMASK_BSY | IMASK_EBERR | IMASK_BABR | \ 379 IMASK_XFUN | IMASK_RXC | IMASK_BABT | IMASK_DPE \ 380 | IMASK_PERR) 381 #define IMASK_RTX_DISABLED ((~(IMASK_RXFEN0 | IMASK_TXFEN | IMASK_BSY)) \ 382 & IMASK_DEFAULT) 383 384 /* Fifo management */ 385 #define FIFO_TX_THR_MASK 0x01ff 386 #define FIFO_TX_STARVE_MASK 0x01ff 387 #define FIFO_TX_STARVE_OFF_MASK 0x01ff 388 389 /* Attribute fields */ 390 391 /* This enables rx snooping for buffers and descriptors */ 392 #define ATTR_BDSTASH 0x00000800 393 394 #define ATTR_BUFSTASH 0x00004000 395 396 #define ATTR_SNOOPING 0x000000c0 397 #define ATTR_INIT_SETTINGS ATTR_SNOOPING 398 399 #define ATTRELI_INIT_SETTINGS 0x0 400 #define ATTRELI_EL_MASK 0x3fff0000 401 #define ATTRELI_EL(x) (x << 16) 402 #define ATTRELI_EI_MASK 0x00003fff 403 #define ATTRELI_EI(x) (x) 404 405 #define BD_LFLAG(flags) ((flags) << 16) 406 #define BD_LENGTH_MASK 0x0000ffff 407 408 #define FPR_FILER_MASK 0xFFFFFFFF 409 #define MAX_FILER_IDX 0xFF 410 411 /* This default RIR value directly corresponds 412 * to the 3-bit hash value generated */ 413 #define DEFAULT_RIR0 0x05397700 414 415 /* RQFCR register bits */ 416 #define RQFCR_GPI 0x80000000 417 #define RQFCR_HASHTBL_Q 0x00000000 418 #define RQFCR_HASHTBL_0 0x00020000 419 #define RQFCR_HASHTBL_1 0x00040000 420 #define RQFCR_HASHTBL_2 0x00060000 421 #define RQFCR_HASHTBL_3 0x00080000 422 #define RQFCR_HASH 0x00010000 423 #define RQFCR_QUEUE 0x0000FC00 424 #define RQFCR_CLE 0x00000200 425 #define RQFCR_RJE 0x00000100 426 #define RQFCR_AND 0x00000080 427 #define RQFCR_CMP_EXACT 0x00000000 428 #define RQFCR_CMP_MATCH 0x00000020 429 #define RQFCR_CMP_NOEXACT 0x00000040 430 #define RQFCR_CMP_NOMATCH 0x00000060 431 432 /* RQFCR PID values */ 433 #define RQFCR_PID_MASK 0x00000000 434 #define RQFCR_PID_PARSE 0x00000001 435 #define RQFCR_PID_ARB 0x00000002 436 #define RQFCR_PID_DAH 0x00000003 437 #define RQFCR_PID_DAL 0x00000004 438 #define RQFCR_PID_SAH 0x00000005 439 #define RQFCR_PID_SAL 0x00000006 440 #define RQFCR_PID_ETY 0x00000007 441 #define RQFCR_PID_VID 0x00000008 442 #define RQFCR_PID_PRI 0x00000009 443 #define RQFCR_PID_TOS 0x0000000A 444 #define RQFCR_PID_L4P 0x0000000B 445 #define RQFCR_PID_DIA 0x0000000C 446 #define RQFCR_PID_SIA 0x0000000D 447 #define RQFCR_PID_DPT 0x0000000E 448 #define RQFCR_PID_SPT 0x0000000F 449 450 /* RQFPR when PID is 0x0001 */ 451 #define RQFPR_HDR_GE_512 0x00200000 452 #define RQFPR_LERR 0x00100000 453 #define RQFPR_RAR 0x00080000 454 #define RQFPR_RARQ 0x00040000 455 #define RQFPR_AR 0x00020000 456 #define RQFPR_ARQ 0x00010000 457 #define RQFPR_EBC 0x00008000 458 #define RQFPR_VLN 0x00004000 459 #define RQFPR_CFI 0x00002000 460 #define RQFPR_JUM 0x00001000 461 #define RQFPR_IPF 0x00000800 462 #define RQFPR_FIF 0x00000400 463 #define RQFPR_IPV4 0x00000200 464 #define RQFPR_IPV6 0x00000100 465 #define RQFPR_ICC 0x00000080 466 #define RQFPR_ICV 0x00000040 467 #define RQFPR_TCP 0x00000020 468 #define RQFPR_UDP 0x00000010 469 #define RQFPR_TUC 0x00000008 470 #define RQFPR_TUV 0x00000004 471 #define RQFPR_PER 0x00000002 472 #define RQFPR_EER 0x00000001 473 474 /* TxBD status field bits */ 475 #define TXBD_READY 0x8000 476 #define TXBD_PADCRC 0x4000 477 #define TXBD_WRAP 0x2000 478 #define TXBD_INTERRUPT 0x1000 479 #define TXBD_LAST 0x0800 480 #define TXBD_CRC 0x0400 481 #define TXBD_DEF 0x0200 482 #define TXBD_HUGEFRAME 0x0080 483 #define TXBD_LATECOLLISION 0x0080 484 #define TXBD_RETRYLIMIT 0x0040 485 #define TXBD_RETRYCOUNTMASK 0x003c 486 #define TXBD_UNDERRUN 0x0002 487 #define TXBD_TOE 0x0002 488 489 /* Tx FCB param bits */ 490 #define TXFCB_VLN 0x80 491 #define TXFCB_IP 0x40 492 #define TXFCB_IP6 0x20 493 #define TXFCB_TUP 0x10 494 #define TXFCB_UDP 0x08 495 #define TXFCB_CIP 0x04 496 #define TXFCB_CTU 0x02 497 #define TXFCB_NPH 0x01 498 #define TXFCB_DEFAULT (TXFCB_IP|TXFCB_TUP|TXFCB_CTU|TXFCB_NPH) 499 500 /* RxBD status field bits */ 501 #define RXBD_EMPTY 0x8000 502 #define RXBD_RO1 0x4000 503 #define RXBD_WRAP 0x2000 504 #define RXBD_INTERRUPT 0x1000 505 #define RXBD_LAST 0x0800 506 #define RXBD_FIRST 0x0400 507 #define RXBD_MISS 0x0100 508 #define RXBD_BROADCAST 0x0080 509 #define RXBD_MULTICAST 0x0040 510 #define RXBD_LARGE 0x0020 511 #define RXBD_NONOCTET 0x0010 512 #define RXBD_SHORT 0x0008 513 #define RXBD_CRCERR 0x0004 514 #define RXBD_OVERRUN 0x0002 515 #define RXBD_TRUNCATED 0x0001 516 #define RXBD_STATS 0x01ff 517 #define RXBD_ERR (RXBD_LARGE | RXBD_SHORT | RXBD_NONOCTET \ 518 | RXBD_CRCERR | RXBD_OVERRUN \ 519 | RXBD_TRUNCATED) 520 521 /* Rx FCB status field bits */ 522 #define RXFCB_VLN 0x8000 523 #define RXFCB_IP 0x4000 524 #define RXFCB_IP6 0x2000 525 #define RXFCB_TUP 0x1000 526 #define RXFCB_CIP 0x0800 527 #define RXFCB_CTU 0x0400 528 #define RXFCB_EIP 0x0200 529 #define RXFCB_ETU 0x0100 530 #define RXFCB_CSUM_MASK 0x0f00 531 #define RXFCB_PERR_MASK 0x000c 532 #define RXFCB_PERR_BADL3 0x0008 533 534 #define GFAR_INT_NAME_MAX (IFNAMSIZ + 6) /* '_g#_xx' */ 535 536 struct txbd8 537 { 538 union { 539 struct { 540 u16 status; /* Status Fields */ 541 u16 length; /* Buffer length */ 542 }; 543 u32 lstatus; 544 }; 545 u32 bufPtr; /* Buffer Pointer */ 546 }; 547 548 struct txfcb { 549 u8 flags; 550 u8 ptp; /* Flag to enable tx timestamping */ 551 u8 l4os; /* Level 4 Header Offset */ 552 u8 l3os; /* Level 3 Header Offset */ 553 u16 phcs; /* Pseudo-header Checksum */ 554 u16 vlctl; /* VLAN control word */ 555 }; 556 557 struct rxbd8 558 { 559 union { 560 struct { 561 u16 status; /* Status Fields */ 562 u16 length; /* Buffer Length */ 563 }; 564 u32 lstatus; 565 }; 566 u32 bufPtr; /* Buffer Pointer */ 567 }; 568 569 struct rxfcb { 570 u16 flags; 571 u8 rq; /* Receive Queue index */ 572 u8 pro; /* Layer 4 Protocol */ 573 u16 reserved; 574 u16 vlctl; /* VLAN control word */ 575 }; 576 577 struct gianfar_skb_cb { 578 unsigned int bytes_sent; /* bytes-on-wire (i.e. no FCB) */ 579 }; 580 581 #define GFAR_CB(skb) ((struct gianfar_skb_cb *)((skb)->cb)) 582 583 struct rmon_mib 584 { 585 u32 tr64; /* 0x.680 - Transmit and Receive 64-byte Frame Counter */ 586 u32 tr127; /* 0x.684 - Transmit and Receive 65-127 byte Frame Counter */ 587 u32 tr255; /* 0x.688 - Transmit and Receive 128-255 byte Frame Counter */ 588 u32 tr511; /* 0x.68c - Transmit and Receive 256-511 byte Frame Counter */ 589 u32 tr1k; /* 0x.690 - Transmit and Receive 512-1023 byte Frame Counter */ 590 u32 trmax; /* 0x.694 - Transmit and Receive 1024-1518 byte Frame Counter */ 591 u32 trmgv; /* 0x.698 - Transmit and Receive 1519-1522 byte Good VLAN Frame */ 592 u32 rbyt; /* 0x.69c - Receive Byte Counter */ 593 u32 rpkt; /* 0x.6a0 - Receive Packet Counter */ 594 u32 rfcs; /* 0x.6a4 - Receive FCS Error Counter */ 595 u32 rmca; /* 0x.6a8 - Receive Multicast Packet Counter */ 596 u32 rbca; /* 0x.6ac - Receive Broadcast Packet Counter */ 597 u32 rxcf; /* 0x.6b0 - Receive Control Frame Packet Counter */ 598 u32 rxpf; /* 0x.6b4 - Receive Pause Frame Packet Counter */ 599 u32 rxuo; /* 0x.6b8 - Receive Unknown OP Code Counter */ 600 u32 raln; /* 0x.6bc - Receive Alignment Error Counter */ 601 u32 rflr; /* 0x.6c0 - Receive Frame Length Error Counter */ 602 u32 rcde; /* 0x.6c4 - Receive Code Error Counter */ 603 u32 rcse; /* 0x.6c8 - Receive Carrier Sense Error Counter */ 604 u32 rund; /* 0x.6cc - Receive Undersize Packet Counter */ 605 u32 rovr; /* 0x.6d0 - Receive Oversize Packet Counter */ 606 u32 rfrg; /* 0x.6d4 - Receive Fragments Counter */ 607 u32 rjbr; /* 0x.6d8 - Receive Jabber Counter */ 608 u32 rdrp; /* 0x.6dc - Receive Drop Counter */ 609 u32 tbyt; /* 0x.6e0 - Transmit Byte Counter Counter */ 610 u32 tpkt; /* 0x.6e4 - Transmit Packet Counter */ 611 u32 tmca; /* 0x.6e8 - Transmit Multicast Packet Counter */ 612 u32 tbca; /* 0x.6ec - Transmit Broadcast Packet Counter */ 613 u32 txpf; /* 0x.6f0 - Transmit Pause Control Frame Counter */ 614 u32 tdfr; /* 0x.6f4 - Transmit Deferral Packet Counter */ 615 u32 tedf; /* 0x.6f8 - Transmit Excessive Deferral Packet Counter */ 616 u32 tscl; /* 0x.6fc - Transmit Single Collision Packet Counter */ 617 u32 tmcl; /* 0x.700 - Transmit Multiple Collision Packet Counter */ 618 u32 tlcl; /* 0x.704 - Transmit Late Collision Packet Counter */ 619 u32 txcl; /* 0x.708 - Transmit Excessive Collision Packet Counter */ 620 u32 tncl; /* 0x.70c - Transmit Total Collision Counter */ 621 u8 res1[4]; 622 u32 tdrp; /* 0x.714 - Transmit Drop Frame Counter */ 623 u32 tjbr; /* 0x.718 - Transmit Jabber Frame Counter */ 624 u32 tfcs; /* 0x.71c - Transmit FCS Error Counter */ 625 u32 txcf; /* 0x.720 - Transmit Control Frame Counter */ 626 u32 tovr; /* 0x.724 - Transmit Oversize Frame Counter */ 627 u32 tund; /* 0x.728 - Transmit Undersize Frame Counter */ 628 u32 tfrg; /* 0x.72c - Transmit Fragments Frame Counter */ 629 u32 car1; /* 0x.730 - Carry Register One */ 630 u32 car2; /* 0x.734 - Carry Register Two */ 631 u32 cam1; /* 0x.738 - Carry Mask Register One */ 632 u32 cam2; /* 0x.73c - Carry Mask Register Two */ 633 }; 634 635 struct gfar_extra_stats { 636 atomic64_t rx_large; 637 atomic64_t rx_short; 638 atomic64_t rx_nonoctet; 639 atomic64_t rx_crcerr; 640 atomic64_t rx_overrun; 641 atomic64_t rx_bsy; 642 atomic64_t rx_babr; 643 atomic64_t rx_trunc; 644 atomic64_t eberr; 645 atomic64_t tx_babt; 646 atomic64_t tx_underrun; 647 atomic64_t rx_skbmissing; 648 atomic64_t tx_timeout; 649 }; 650 651 #define GFAR_RMON_LEN ((sizeof(struct rmon_mib) - 16)/sizeof(u32)) 652 #define GFAR_EXTRA_STATS_LEN \ 653 (sizeof(struct gfar_extra_stats)/sizeof(atomic64_t)) 654 655 /* Number of stats exported via ethtool */ 656 #define GFAR_STATS_LEN (GFAR_RMON_LEN + GFAR_EXTRA_STATS_LEN) 657 658 struct gfar { 659 u32 tsec_id; /* 0x.000 - Controller ID register */ 660 u32 tsec_id2; /* 0x.004 - Controller ID2 register */ 661 u8 res1[8]; 662 u32 ievent; /* 0x.010 - Interrupt Event Register */ 663 u32 imask; /* 0x.014 - Interrupt Mask Register */ 664 u32 edis; /* 0x.018 - Error Disabled Register */ 665 u32 emapg; /* 0x.01c - Group Error mapping register */ 666 u32 ecntrl; /* 0x.020 - Ethernet Control Register */ 667 u32 minflr; /* 0x.024 - Minimum Frame Length Register */ 668 u32 ptv; /* 0x.028 - Pause Time Value Register */ 669 u32 dmactrl; /* 0x.02c - DMA Control Register */ 670 u32 tbipa; /* 0x.030 - TBI PHY Address Register */ 671 u8 res2[28]; 672 u32 fifo_rx_pause; /* 0x.050 - FIFO receive pause start threshold 673 register */ 674 u32 fifo_rx_pause_shutoff; /* x.054 - FIFO receive starve shutoff 675 register */ 676 u32 fifo_rx_alarm; /* 0x.058 - FIFO receive alarm start threshold 677 register */ 678 u32 fifo_rx_alarm_shutoff; /*0x.05c - FIFO receive alarm starve 679 shutoff register */ 680 u8 res3[44]; 681 u32 fifo_tx_thr; /* 0x.08c - FIFO transmit threshold register */ 682 u8 res4[8]; 683 u32 fifo_tx_starve; /* 0x.098 - FIFO transmit starve register */ 684 u32 fifo_tx_starve_shutoff; /* 0x.09c - FIFO transmit starve shutoff register */ 685 u8 res5[96]; 686 u32 tctrl; /* 0x.100 - Transmit Control Register */ 687 u32 tstat; /* 0x.104 - Transmit Status Register */ 688 u32 dfvlan; /* 0x.108 - Default VLAN Control word */ 689 u32 tbdlen; /* 0x.10c - Transmit Buffer Descriptor Data Length Register */ 690 u32 txic; /* 0x.110 - Transmit Interrupt Coalescing Configuration Register */ 691 u32 tqueue; /* 0x.114 - Transmit queue control register */ 692 u8 res7[40]; 693 u32 tr03wt; /* 0x.140 - TxBD Rings 0-3 round-robin weightings */ 694 u32 tr47wt; /* 0x.144 - TxBD Rings 4-7 round-robin weightings */ 695 u8 res8[52]; 696 u32 tbdbph; /* 0x.17c - Tx data buffer pointer high */ 697 u8 res9a[4]; 698 u32 tbptr0; /* 0x.184 - TxBD Pointer for ring 0 */ 699 u8 res9b[4]; 700 u32 tbptr1; /* 0x.18c - TxBD Pointer for ring 1 */ 701 u8 res9c[4]; 702 u32 tbptr2; /* 0x.194 - TxBD Pointer for ring 2 */ 703 u8 res9d[4]; 704 u32 tbptr3; /* 0x.19c - TxBD Pointer for ring 3 */ 705 u8 res9e[4]; 706 u32 tbptr4; /* 0x.1a4 - TxBD Pointer for ring 4 */ 707 u8 res9f[4]; 708 u32 tbptr5; /* 0x.1ac - TxBD Pointer for ring 5 */ 709 u8 res9g[4]; 710 u32 tbptr6; /* 0x.1b4 - TxBD Pointer for ring 6 */ 711 u8 res9h[4]; 712 u32 tbptr7; /* 0x.1bc - TxBD Pointer for ring 7 */ 713 u8 res9[64]; 714 u32 tbaseh; /* 0x.200 - TxBD base address high */ 715 u32 tbase0; /* 0x.204 - TxBD Base Address of ring 0 */ 716 u8 res10a[4]; 717 u32 tbase1; /* 0x.20c - TxBD Base Address of ring 1 */ 718 u8 res10b[4]; 719 u32 tbase2; /* 0x.214 - TxBD Base Address of ring 2 */ 720 u8 res10c[4]; 721 u32 tbase3; /* 0x.21c - TxBD Base Address of ring 3 */ 722 u8 res10d[4]; 723 u32 tbase4; /* 0x.224 - TxBD Base Address of ring 4 */ 724 u8 res10e[4]; 725 u32 tbase5; /* 0x.22c - TxBD Base Address of ring 5 */ 726 u8 res10f[4]; 727 u32 tbase6; /* 0x.234 - TxBD Base Address of ring 6 */ 728 u8 res10g[4]; 729 u32 tbase7; /* 0x.23c - TxBD Base Address of ring 7 */ 730 u8 res10[192]; 731 u32 rctrl; /* 0x.300 - Receive Control Register */ 732 u32 rstat; /* 0x.304 - Receive Status Register */ 733 u8 res12[8]; 734 u32 rxic; /* 0x.310 - Receive Interrupt Coalescing Configuration Register */ 735 u32 rqueue; /* 0x.314 - Receive queue control register */ 736 u32 rir0; /* 0x.318 - Ring mapping register 0 */ 737 u32 rir1; /* 0x.31c - Ring mapping register 1 */ 738 u32 rir2; /* 0x.320 - Ring mapping register 2 */ 739 u32 rir3; /* 0x.324 - Ring mapping register 3 */ 740 u8 res13[8]; 741 u32 rbifx; /* 0x.330 - Receive bit field extract control register */ 742 u32 rqfar; /* 0x.334 - Receive queue filing table address register */ 743 u32 rqfcr; /* 0x.338 - Receive queue filing table control register */ 744 u32 rqfpr; /* 0x.33c - Receive queue filing table property register */ 745 u32 mrblr; /* 0x.340 - Maximum Receive Buffer Length Register */ 746 u8 res14[56]; 747 u32 rbdbph; /* 0x.37c - Rx data buffer pointer high */ 748 u8 res15a[4]; 749 u32 rbptr0; /* 0x.384 - RxBD pointer for ring 0 */ 750 u8 res15b[4]; 751 u32 rbptr1; /* 0x.38c - RxBD pointer for ring 1 */ 752 u8 res15c[4]; 753 u32 rbptr2; /* 0x.394 - RxBD pointer for ring 2 */ 754 u8 res15d[4]; 755 u32 rbptr3; /* 0x.39c - RxBD pointer for ring 3 */ 756 u8 res15e[4]; 757 u32 rbptr4; /* 0x.3a4 - RxBD pointer for ring 4 */ 758 u8 res15f[4]; 759 u32 rbptr5; /* 0x.3ac - RxBD pointer for ring 5 */ 760 u8 res15g[4]; 761 u32 rbptr6; /* 0x.3b4 - RxBD pointer for ring 6 */ 762 u8 res15h[4]; 763 u32 rbptr7; /* 0x.3bc - RxBD pointer for ring 7 */ 764 u8 res16[64]; 765 u32 rbaseh; /* 0x.400 - RxBD base address high */ 766 u32 rbase0; /* 0x.404 - RxBD base address of ring 0 */ 767 u8 res17a[4]; 768 u32 rbase1; /* 0x.40c - RxBD base address of ring 1 */ 769 u8 res17b[4]; 770 u32 rbase2; /* 0x.414 - RxBD base address of ring 2 */ 771 u8 res17c[4]; 772 u32 rbase3; /* 0x.41c - RxBD base address of ring 3 */ 773 u8 res17d[4]; 774 u32 rbase4; /* 0x.424 - RxBD base address of ring 4 */ 775 u8 res17e[4]; 776 u32 rbase5; /* 0x.42c - RxBD base address of ring 5 */ 777 u8 res17f[4]; 778 u32 rbase6; /* 0x.434 - RxBD base address of ring 6 */ 779 u8 res17g[4]; 780 u32 rbase7; /* 0x.43c - RxBD base address of ring 7 */ 781 u8 res17[192]; 782 u32 maccfg1; /* 0x.500 - MAC Configuration 1 Register */ 783 u32 maccfg2; /* 0x.504 - MAC Configuration 2 Register */ 784 u32 ipgifg; /* 0x.508 - Inter Packet Gap/Inter Frame Gap Register */ 785 u32 hafdup; /* 0x.50c - Half Duplex Register */ 786 u32 maxfrm; /* 0x.510 - Maximum Frame Length Register */ 787 u8 res18[12]; 788 u8 gfar_mii_regs[24]; /* See gianfar_phy.h */ 789 u32 ifctrl; /* 0x.538 - Interface control register */ 790 u32 ifstat; /* 0x.53c - Interface Status Register */ 791 u32 macstnaddr1; /* 0x.540 - Station Address Part 1 Register */ 792 u32 macstnaddr2; /* 0x.544 - Station Address Part 2 Register */ 793 u32 mac01addr1; /* 0x.548 - MAC exact match address 1, part 1 */ 794 u32 mac01addr2; /* 0x.54c - MAC exact match address 1, part 2 */ 795 u32 mac02addr1; /* 0x.550 - MAC exact match address 2, part 1 */ 796 u32 mac02addr2; /* 0x.554 - MAC exact match address 2, part 2 */ 797 u32 mac03addr1; /* 0x.558 - MAC exact match address 3, part 1 */ 798 u32 mac03addr2; /* 0x.55c - MAC exact match address 3, part 2 */ 799 u32 mac04addr1; /* 0x.560 - MAC exact match address 4, part 1 */ 800 u32 mac04addr2; /* 0x.564 - MAC exact match address 4, part 2 */ 801 u32 mac05addr1; /* 0x.568 - MAC exact match address 5, part 1 */ 802 u32 mac05addr2; /* 0x.56c - MAC exact match address 5, part 2 */ 803 u32 mac06addr1; /* 0x.570 - MAC exact match address 6, part 1 */ 804 u32 mac06addr2; /* 0x.574 - MAC exact match address 6, part 2 */ 805 u32 mac07addr1; /* 0x.578 - MAC exact match address 7, part 1 */ 806 u32 mac07addr2; /* 0x.57c - MAC exact match address 7, part 2 */ 807 u32 mac08addr1; /* 0x.580 - MAC exact match address 8, part 1 */ 808 u32 mac08addr2; /* 0x.584 - MAC exact match address 8, part 2 */ 809 u32 mac09addr1; /* 0x.588 - MAC exact match address 9, part 1 */ 810 u32 mac09addr2; /* 0x.58c - MAC exact match address 9, part 2 */ 811 u32 mac10addr1; /* 0x.590 - MAC exact match address 10, part 1*/ 812 u32 mac10addr2; /* 0x.594 - MAC exact match address 10, part 2*/ 813 u32 mac11addr1; /* 0x.598 - MAC exact match address 11, part 1*/ 814 u32 mac11addr2; /* 0x.59c - MAC exact match address 11, part 2*/ 815 u32 mac12addr1; /* 0x.5a0 - MAC exact match address 12, part 1*/ 816 u32 mac12addr2; /* 0x.5a4 - MAC exact match address 12, part 2*/ 817 u32 mac13addr1; /* 0x.5a8 - MAC exact match address 13, part 1*/ 818 u32 mac13addr2; /* 0x.5ac - MAC exact match address 13, part 2*/ 819 u32 mac14addr1; /* 0x.5b0 - MAC exact match address 14, part 1*/ 820 u32 mac14addr2; /* 0x.5b4 - MAC exact match address 14, part 2*/ 821 u32 mac15addr1; /* 0x.5b8 - MAC exact match address 15, part 1*/ 822 u32 mac15addr2; /* 0x.5bc - MAC exact match address 15, part 2*/ 823 u8 res20[192]; 824 struct rmon_mib rmon; /* 0x.680-0x.73c */ 825 u32 rrej; /* 0x.740 - Receive filer rejected packet counter */ 826 u8 res21[188]; 827 u32 igaddr0; /* 0x.800 - Indivdual/Group address register 0*/ 828 u32 igaddr1; /* 0x.804 - Indivdual/Group address register 1*/ 829 u32 igaddr2; /* 0x.808 - Indivdual/Group address register 2*/ 830 u32 igaddr3; /* 0x.80c - Indivdual/Group address register 3*/ 831 u32 igaddr4; /* 0x.810 - Indivdual/Group address register 4*/ 832 u32 igaddr5; /* 0x.814 - Indivdual/Group address register 5*/ 833 u32 igaddr6; /* 0x.818 - Indivdual/Group address register 6*/ 834 u32 igaddr7; /* 0x.81c - Indivdual/Group address register 7*/ 835 u8 res22[96]; 836 u32 gaddr0; /* 0x.880 - Group address register 0 */ 837 u32 gaddr1; /* 0x.884 - Group address register 1 */ 838 u32 gaddr2; /* 0x.888 - Group address register 2 */ 839 u32 gaddr3; /* 0x.88c - Group address register 3 */ 840 u32 gaddr4; /* 0x.890 - Group address register 4 */ 841 u32 gaddr5; /* 0x.894 - Group address register 5 */ 842 u32 gaddr6; /* 0x.898 - Group address register 6 */ 843 u32 gaddr7; /* 0x.89c - Group address register 7 */ 844 u8 res23a[352]; 845 u32 fifocfg; /* 0x.a00 - FIFO interface config register */ 846 u8 res23b[252]; 847 u8 res23c[248]; 848 u32 attr; /* 0x.bf8 - Attributes Register */ 849 u32 attreli; /* 0x.bfc - Attributes Extract Length and Extract Index Register */ 850 u8 res24[688]; 851 u32 isrg0; /* 0x.eb0 - Interrupt steering group 0 register */ 852 u32 isrg1; /* 0x.eb4 - Interrupt steering group 1 register */ 853 u32 isrg2; /* 0x.eb8 - Interrupt steering group 2 register */ 854 u32 isrg3; /* 0x.ebc - Interrupt steering group 3 register */ 855 u8 res25[16]; 856 u32 rxic0; /* 0x.ed0 - Ring 0 Rx interrupt coalescing */ 857 u32 rxic1; /* 0x.ed4 - Ring 1 Rx interrupt coalescing */ 858 u32 rxic2; /* 0x.ed8 - Ring 2 Rx interrupt coalescing */ 859 u32 rxic3; /* 0x.edc - Ring 3 Rx interrupt coalescing */ 860 u32 rxic4; /* 0x.ee0 - Ring 4 Rx interrupt coalescing */ 861 u32 rxic5; /* 0x.ee4 - Ring 5 Rx interrupt coalescing */ 862 u32 rxic6; /* 0x.ee8 - Ring 6 Rx interrupt coalescing */ 863 u32 rxic7; /* 0x.eec - Ring 7 Rx interrupt coalescing */ 864 u8 res26[32]; 865 u32 txic0; /* 0x.f10 - Ring 0 Tx interrupt coalescing */ 866 u32 txic1; /* 0x.f14 - Ring 1 Tx interrupt coalescing */ 867 u32 txic2; /* 0x.f18 - Ring 2 Tx interrupt coalescing */ 868 u32 txic3; /* 0x.f1c - Ring 3 Tx interrupt coalescing */ 869 u32 txic4; /* 0x.f20 - Ring 4 Tx interrupt coalescing */ 870 u32 txic5; /* 0x.f24 - Ring 5 Tx interrupt coalescing */ 871 u32 txic6; /* 0x.f28 - Ring 6 Tx interrupt coalescing */ 872 u32 txic7; /* 0x.f2c - Ring 7 Tx interrupt coalescing */ 873 u8 res27[208]; 874 }; 875 876 /* Flags related to gianfar device features */ 877 #define FSL_GIANFAR_DEV_HAS_GIGABIT 0x00000001 878 #define FSL_GIANFAR_DEV_HAS_COALESCE 0x00000002 879 #define FSL_GIANFAR_DEV_HAS_RMON 0x00000004 880 #define FSL_GIANFAR_DEV_HAS_MULTI_INTR 0x00000008 881 #define FSL_GIANFAR_DEV_HAS_CSUM 0x00000010 882 #define FSL_GIANFAR_DEV_HAS_VLAN 0x00000020 883 #define FSL_GIANFAR_DEV_HAS_EXTENDED_HASH 0x00000040 884 #define FSL_GIANFAR_DEV_HAS_PADDING 0x00000080 885 #define FSL_GIANFAR_DEV_HAS_MAGIC_PACKET 0x00000100 886 #define FSL_GIANFAR_DEV_HAS_BD_STASHING 0x00000200 887 #define FSL_GIANFAR_DEV_HAS_BUF_STASHING 0x00000400 888 #define FSL_GIANFAR_DEV_HAS_TIMER 0x00000800 889 890 #if (MAXGROUPS == 2) 891 #define DEFAULT_MAPPING 0xAA 892 #else 893 #define DEFAULT_MAPPING 0xFF 894 #endif 895 896 #define ISRG_SHIFT_TX 0x10 897 #define ISRG_SHIFT_RX 0x18 898 899 /* The same driver can operate in two modes */ 900 /* SQ_SG_MODE: Single Queue Single Group Mode 901 * (Backward compatible mode) 902 * MQ_MG_MODE: Multi Queue Multi Group mode 903 */ 904 enum { 905 SQ_SG_MODE = 0, 906 MQ_MG_MODE 907 }; 908 909 /* 910 * Per TX queue stats 911 */ 912 struct tx_q_stats { 913 unsigned long tx_packets; 914 unsigned long tx_bytes; 915 }; 916 917 /** 918 * struct gfar_priv_tx_q - per tx queue structure 919 * @txlock: per queue tx spin lock 920 * @tx_skbuff:skb pointers 921 * @skb_curtx: to be used skb pointer 922 * @skb_dirtytx:the last used skb pointer 923 * @stats: bytes/packets stats 924 * @qindex: index of this queue 925 * @dev: back pointer to the dev structure 926 * @grp: back pointer to the group to which this queue belongs 927 * @tx_bd_base: First tx buffer descriptor 928 * @cur_tx: Next free ring entry 929 * @dirty_tx: First buffer in line to be transmitted 930 * @tx_ring_size: Tx ring size 931 * @num_txbdfree: number of free TxBds 932 * @txcoalescing: enable/disable tx coalescing 933 * @txic: transmit interrupt coalescing value 934 * @txcount: coalescing value if based on tx frame count 935 * @txtime: coalescing value if based on time 936 */ 937 struct gfar_priv_tx_q { 938 /* cacheline 1 */ 939 spinlock_t txlock __attribute__ ((aligned (SMP_CACHE_BYTES))); 940 struct txbd8 *tx_bd_base; 941 struct txbd8 *cur_tx; 942 unsigned int num_txbdfree; 943 unsigned short skb_curtx; 944 unsigned short tx_ring_size; 945 struct tx_q_stats stats; 946 struct gfar_priv_grp *grp; 947 /* cacheline 2 */ 948 struct net_device *dev; 949 struct sk_buff **tx_skbuff; 950 struct txbd8 *dirty_tx; 951 unsigned short skb_dirtytx; 952 unsigned short qindex; 953 /* Configuration info for the coalescing features */ 954 unsigned int txcoalescing; 955 unsigned long txic; 956 dma_addr_t tx_bd_dma_base; 957 }; 958 959 /* 960 * Per RX queue stats 961 */ 962 struct rx_q_stats { 963 unsigned long rx_packets; 964 unsigned long rx_bytes; 965 unsigned long rx_dropped; 966 }; 967 968 /** 969 * struct gfar_priv_rx_q - per rx queue structure 970 * @rxlock: per queue rx spin lock 971 * @rx_skbuff: skb pointers 972 * @skb_currx: currently use skb pointer 973 * @rx_bd_base: First rx buffer descriptor 974 * @cur_rx: Next free rx ring entry 975 * @qindex: index of this queue 976 * @dev: back pointer to the dev structure 977 * @rx_ring_size: Rx ring size 978 * @rxcoalescing: enable/disable rx-coalescing 979 * @rxic: receive interrupt coalescing vlaue 980 */ 981 982 struct gfar_priv_rx_q { 983 spinlock_t rxlock __attribute__ ((aligned (SMP_CACHE_BYTES))); 984 struct sk_buff ** rx_skbuff; 985 dma_addr_t rx_bd_dma_base; 986 struct rxbd8 *rx_bd_base; 987 struct rxbd8 *cur_rx; 988 struct net_device *dev; 989 struct gfar_priv_grp *grp; 990 struct rx_q_stats stats; 991 u16 skb_currx; 992 u16 qindex; 993 unsigned int rx_ring_size; 994 /* RX Coalescing values */ 995 unsigned char rxcoalescing; 996 unsigned long rxic; 997 }; 998 999 enum gfar_irqinfo_id { 1000 GFAR_TX = 0, 1001 GFAR_RX = 1, 1002 GFAR_ER = 2, 1003 GFAR_NUM_IRQS = 3 1004 }; 1005 1006 struct gfar_irqinfo { 1007 unsigned int irq; 1008 char name[GFAR_INT_NAME_MAX]; 1009 }; 1010 1011 /** 1012 * struct gfar_priv_grp - per group structure 1013 * @napi: the napi poll function 1014 * @priv: back pointer to the priv structure 1015 * @regs: the ioremapped register space for this group 1016 * @irqinfo: TX/RX/ER irq data for this group 1017 */ 1018 1019 struct gfar_priv_grp { 1020 spinlock_t grplock __attribute__ ((aligned (SMP_CACHE_BYTES))); 1021 struct napi_struct napi; 1022 struct gfar_private *priv; 1023 struct gfar __iomem *regs; 1024 unsigned int rstat; 1025 unsigned long num_rx_queues; 1026 unsigned long rx_bit_map; 1027 /* cacheline 3 */ 1028 unsigned int tstat; 1029 unsigned long num_tx_queues; 1030 unsigned long tx_bit_map; 1031 1032 struct gfar_irqinfo *irqinfo[GFAR_NUM_IRQS]; 1033 }; 1034 1035 #define gfar_irq(grp, ID) \ 1036 ((grp)->irqinfo[GFAR_##ID]) 1037 1038 enum gfar_errata { 1039 GFAR_ERRATA_74 = 0x01, 1040 GFAR_ERRATA_76 = 0x02, 1041 GFAR_ERRATA_A002 = 0x04, 1042 GFAR_ERRATA_12 = 0x08, /* a.k.a errata eTSEC49 */ 1043 }; 1044 1045 /* Struct stolen almost completely (and shamelessly) from the FCC enet source 1046 * (Ok, that's not so true anymore, but there is a family resemblance) 1047 * The GFAR buffer descriptors track the ring buffers. The rx_bd_base 1048 * and tx_bd_base always point to the currently available buffer. 1049 * The dirty_tx tracks the current buffer that is being sent by the 1050 * controller. The cur_tx and dirty_tx are equal under both completely 1051 * empty and completely full conditions. The empty/ready indicator in 1052 * the buffer descriptor determines the actual condition. 1053 */ 1054 struct gfar_private { 1055 unsigned int num_rx_queues; 1056 1057 struct device *dev; 1058 struct net_device *ndev; 1059 enum gfar_errata errata; 1060 unsigned int rx_buffer_size; 1061 1062 u16 uses_rxfcb; 1063 u16 padding; 1064 1065 /* HW time stamping enabled flag */ 1066 int hwts_rx_en; 1067 int hwts_tx_en; 1068 1069 struct gfar_priv_tx_q *tx_queue[MAX_TX_QS]; 1070 struct gfar_priv_rx_q *rx_queue[MAX_RX_QS]; 1071 struct gfar_priv_grp gfargrp[MAXGROUPS]; 1072 1073 u32 device_flags; 1074 1075 unsigned int mode; 1076 unsigned int num_tx_queues; 1077 unsigned int num_grps; 1078 1079 /* Network Statistics */ 1080 struct gfar_extra_stats extra_stats; 1081 1082 /* PHY stuff */ 1083 phy_interface_t interface; 1084 struct device_node *phy_node; 1085 struct device_node *tbi_node; 1086 struct phy_device *phydev; 1087 struct mii_bus *mii_bus; 1088 int oldspeed; 1089 int oldduplex; 1090 int oldlink; 1091 1092 /* Bitfield update lock */ 1093 spinlock_t bflock; 1094 1095 uint32_t msg_enable; 1096 1097 struct work_struct reset_task; 1098 1099 struct platform_device *ofdev; 1100 unsigned char 1101 extended_hash:1, 1102 bd_stash_en:1, 1103 rx_filer_enable:1, 1104 /* Wake-on-LAN enabled */ 1105 wol_en:1, 1106 /* Enable priorty based Tx scheduling in Hw */ 1107 prio_sched_en:1, 1108 /* Flow control flags */ 1109 pause_aneg_en:1, 1110 tx_pause_en:1, 1111 rx_pause_en:1; 1112 1113 /* The total tx and rx ring size for the enabled queues */ 1114 unsigned int total_tx_ring_size; 1115 unsigned int total_rx_ring_size; 1116 1117 /* RX per device parameters */ 1118 unsigned int rx_stash_size; 1119 unsigned int rx_stash_index; 1120 1121 u32 cur_filer_idx; 1122 1123 /* RX queue filer rule set*/ 1124 struct ethtool_rx_list rx_list; 1125 struct mutex rx_queue_access; 1126 1127 /* Hash registers and their width */ 1128 u32 __iomem *hash_regs[16]; 1129 int hash_width; 1130 1131 /* global parameters */ 1132 unsigned int fifo_threshold; 1133 unsigned int fifo_starve; 1134 unsigned int fifo_starve_off; 1135 1136 /*Filer table*/ 1137 unsigned int ftp_rqfpr[MAX_FILER_IDX + 1]; 1138 unsigned int ftp_rqfcr[MAX_FILER_IDX + 1]; 1139 }; 1140 1141 1142 static inline int gfar_has_errata(struct gfar_private *priv, 1143 enum gfar_errata err) 1144 { 1145 return priv->errata & err; 1146 } 1147 1148 static inline u32 gfar_read(unsigned __iomem *addr) 1149 { 1150 u32 val; 1151 val = ioread32be(addr); 1152 return val; 1153 } 1154 1155 static inline void gfar_write(unsigned __iomem *addr, u32 val) 1156 { 1157 iowrite32be(val, addr); 1158 } 1159 1160 static inline void gfar_write_filer(struct gfar_private *priv, 1161 unsigned int far, unsigned int fcr, unsigned int fpr) 1162 { 1163 struct gfar __iomem *regs = priv->gfargrp[0].regs; 1164 1165 gfar_write(®s->rqfar, far); 1166 gfar_write(®s->rqfcr, fcr); 1167 gfar_write(®s->rqfpr, fpr); 1168 } 1169 1170 static inline void gfar_read_filer(struct gfar_private *priv, 1171 unsigned int far, unsigned int *fcr, unsigned int *fpr) 1172 { 1173 struct gfar __iomem *regs = priv->gfargrp[0].regs; 1174 1175 gfar_write(®s->rqfar, far); 1176 *fcr = gfar_read(®s->rqfcr); 1177 *fpr = gfar_read(®s->rqfpr); 1178 } 1179 1180 void lock_rx_qs(struct gfar_private *priv); 1181 void lock_tx_qs(struct gfar_private *priv); 1182 void unlock_rx_qs(struct gfar_private *priv); 1183 void unlock_tx_qs(struct gfar_private *priv); 1184 irqreturn_t gfar_receive(int irq, void *dev_id); 1185 int startup_gfar(struct net_device *dev); 1186 void stop_gfar(struct net_device *dev); 1187 void gfar_halt(struct net_device *dev); 1188 void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev, int enable, 1189 u32 regnum, u32 read); 1190 void gfar_configure_coalescing_all(struct gfar_private *priv); 1191 void gfar_init_sysfs(struct net_device *dev); 1192 int gfar_set_features(struct net_device *dev, netdev_features_t features); 1193 void gfar_check_rx_parser_mode(struct gfar_private *priv); 1194 void gfar_vlan_mode(struct net_device *dev, netdev_features_t features); 1195 1196 extern const struct ethtool_ops gfar_ethtool_ops; 1197 1198 #define MAX_FILER_CACHE_IDX (2*(MAX_FILER_IDX)) 1199 1200 #define RQFCR_PID_PRI_MASK 0xFFFFFFF8 1201 #define RQFCR_PID_L4P_MASK 0xFFFFFF00 1202 #define RQFCR_PID_VID_MASK 0xFFFFF000 1203 #define RQFCR_PID_PORT_MASK 0xFFFF0000 1204 #define RQFCR_PID_MAC_MASK 0xFF000000 1205 1206 struct gfar_mask_entry { 1207 unsigned int mask; /* The mask value which is valid form start to end */ 1208 unsigned int start; 1209 unsigned int end; 1210 unsigned int block; /* Same block values indicate depended entries */ 1211 }; 1212 1213 /* Represents a receive filer table entry */ 1214 struct gfar_filer_entry { 1215 u32 ctrl; 1216 u32 prop; 1217 }; 1218 1219 1220 /* The 20 additional entries are a shadow for one extra element */ 1221 struct filer_table { 1222 u32 index; 1223 struct gfar_filer_entry fe[MAX_FILER_CACHE_IDX + 20]; 1224 }; 1225 1226 /* The gianfar_ptp module will set this variable */ 1227 extern int gfar_phc_index; 1228 1229 #endif /* __GIANFAR_H */ 1230