board/esd/cpci750/mv_eth.h

   1 /*
   2  * (C) Copyright 2003
   3  * Ingo Assmus <ingo.assmus@keymile.com>
   4  *
   5  * based on - Driver for MV64360X ethernet ports
   6  * Copyright (C) 2002 rabeeh@galileo.co.il
   7  *
   8  * See file CREDITS for list of people who contributed to this
   9  * project.
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of
  14  * the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24  * MA 02111-1307 USA
  25  */
  26
  27 /*
  28  * mv_eth.h - header file for the polled mode GT ethernet driver
  29  */
  30
  31 #ifndef __DB64360_ETH_H__
  32 #define __DB64360_ETH_H__
  33
  34 #include <asm/types.h>
  35 #include <asm/io.h>
  36 #include <asm/byteorder.h>
  37 #include <common.h>
  38 #include <net.h>
  39 #include "mv_regs.h"
  40 #include "../../Marvell/common/ppc_error_no.h"
  41
  42
  43 /*************************************************************************
  44 **************************************************************************
  45 **************************************************************************
  46 *  The first part is the high level driver of the gigE ethernet ports.   *
  47 **************************************************************************
  48 **************************************************************************
  49 *************************************************************************/
  50 #ifndef TRUE
  51 #define TRUE 1
  52 #endif
  53 #ifndef FALSE
  54 #define FALSE 0
  55 #endif
  56
  57 /* In case not using SG on Tx, define MAX_SKB_FRAGS as 0 */
  58 #ifndef MAX_SKB_FRAGS
  59 #define MAX_SKB_FRAGS 0
  60 #endif
  61
  62 /* Port attributes */
  63 /*#define MAX_RX_QUEUE_NUM      8*/
  64 /*#define MAX_TX_QUEUE_NUM      8*/
  65 #define MAX_RX_QUEUE_NUM        1
  66 #define MAX_TX_QUEUE_NUM        1
  67
  68
  69 /* Use one TX queue and one RX queue */
  70 #define MV64360_TX_QUEUE_NUM 1
  71 #define MV64360_RX_QUEUE_NUM 1
  72
  73 /*
  74  * Number of RX / TX descriptors on RX / TX rings.
  75  * Note that allocating RX descriptors is done by allocating the RX
  76  * ring AND a preallocated RX buffers (skb's) for each descriptor.
  77  * The TX descriptors only allocates the TX descriptors ring,
  78  * with no pre allocated TX buffers (skb's are allocated by higher layers.
  79  */
  80
  81 /* Default TX ring size is 10 descriptors */
  82 #ifdef CONFIG_MV64360_ETH_TXQUEUE_SIZE
  83 #define MV64360_TX_QUEUE_SIZE CONFIG_MV64360_ETH_TXQUEUE_SIZE
  84 #else
  85 #define MV64360_TX_QUEUE_SIZE 4
  86 #endif
  87
  88 /* Default RX ring size is 4 descriptors */
  89 #ifdef  CONFIG_MV64360_ETH_RXQUEUE_SIZE
  90 #define MV64360_RX_QUEUE_SIZE CONFIG_MV64360_ETH_RXQUEUE_SIZE
  91 #else
  92 #define MV64360_RX_QUEUE_SIZE 4
  93 #endif
  94
  95 #ifdef CONFIG_RX_BUFFER_SIZE
  96 #define MV64360_RX_BUFFER_SIZE CONFIG_RX_BUFFER_SIZE
  97 #else
  98 #define MV64360_RX_BUFFER_SIZE 1600
  99 #endif
 100
 101 #ifdef CONFIG_TX_BUFFER_SIZE
 102 #define MV64360_TX_BUFFER_SIZE CONFIG_TX_BUFFER_SIZE
 103 #else
 104 #define MV64360_TX_BUFFER_SIZE 1600
 105 #endif
 106
 107
 108 /*
 109  *      Network device statistics. Akin to the 2.0 ether stats but
 110  *      with byte counters.
 111  */
 112
 113 struct net_device_stats
 114 {
 115         unsigned long   rx_packets;             /* total packets received       */
 116         unsigned long   tx_packets;             /* total packets transmitted    */
 117         unsigned long   rx_bytes;               /* total bytes received         */
 118         unsigned long   tx_bytes;               /* total bytes transmitted      */
 119         unsigned long   rx_errors;              /* bad packets received         */
 120         unsigned long   tx_errors;              /* packet transmit problems     */
 121         unsigned long   rx_dropped;             /* no space in linux buffers    */
 122         unsigned long   tx_dropped;             /* no space available in linux  */
 123         unsigned long   multicast;              /* multicast packets received   */
 124         unsigned long   collisions;
 125
 126         /* detailed rx_errors: */
 127         unsigned long   rx_length_errors;
 128         unsigned long   rx_over_errors;         /* receiver ring buff overflow  */
 129         unsigned long   rx_crc_errors;          /* recved pkt with crc error    */
 130         unsigned long   rx_frame_errors;        /* recv'd frame alignment error */
 131         unsigned long   rx_fifo_errors;         /* recv'r fifo overrun          */
 132         unsigned long   rx_missed_errors;       /* receiver missed packet       */
 133
 134         /* detailed tx_errors */
 135         unsigned long   tx_aborted_errors;
 136         unsigned long   tx_carrier_errors;
 137         unsigned long   tx_fifo_errors;
 138         unsigned long   tx_heartbeat_errors;
 139         unsigned long   tx_window_errors;
 140
 141         /* for cslip etc */
 142         unsigned long   rx_compressed;
 143         unsigned long   tx_compressed;
 144 };
 145
 146
 147 /* Private data structure used for ethernet device */
 148 struct mv64360_eth_priv {
 149     unsigned int port_num;
 150     struct net_device_stats *stats;
 151
 152 /* to buffer area aligned */
 153     char * p_eth_tx_buffer[MV64360_TX_QUEUE_SIZE+1];    /*pointers to alligned tx buffs in memory space */
 154     char * p_eth_rx_buffer[MV64360_RX_QUEUE_SIZE+1];    /*pointers to allinged rx buffs in memory space */
 155
 156     /* Size of Tx Ring per queue */
 157     unsigned int tx_ring_size [MAX_TX_QUEUE_NUM];
 158
 159
 160     /* Size of Rx Ring per queue */
 161     unsigned int rx_ring_size [MAX_RX_QUEUE_NUM];
 162
 163     /* Magic Number for Ethernet running */
 164     unsigned int eth_running;
 165
 166 };
 167
 168
 169 int mv64360_eth_init (struct eth_device *dev);
 170 int mv64360_eth_stop (struct eth_device *dev);
 171 int mv64360_eth_start_xmit (struct eth_device*, volatile void* packet, int length);
 172 /*      return db64360_eth0_poll(); */
 173
 174 int mv64360_eth_open (struct eth_device *dev);
 175
 176
 177 /*************************************************************************
 178 **************************************************************************
 179 **************************************************************************
 180 *  The second part is the low level driver of the gigE ethernet ports.   *
 181 **************************************************************************
 182 **************************************************************************
 183 *************************************************************************/
 184
 185
 186 /********************************************************************************
 187  * Header File for : MV-643xx network interface header
 188  *
 189  * DESCRIPTION:
 190  *       This header file contains macros typedefs and function declaration for
 191  *       the Marvell Gig Bit Ethernet Controller.
 192  *
 193  * DEPENDENCIES:
 194  *       None.
 195  *
 196  *******************************************************************************/
 197
 198
 199 #ifdef CONFIG_SPECIAL_CONSISTENT_MEMORY
 200 #ifdef CONFIG_MV64360_SRAM_CACHEABLE
 201 /* In case SRAM is cacheable but not cache coherent */
 202 #define D_CACHE_FLUSH_LINE(addr, offset)       \
 203 {                   \
 204   __asm__ __volatile__ ("dcbf %0,%1" : : "r" (addr), "r" (offset)); \
 205 }
 206 #else
 207 /* In case SRAM is cache coherent or non-cacheable */
 208 #define D_CACHE_FLUSH_LINE(addr, offset) ;
 209 #endif
 210 #else
 211 #ifdef CONFIG_NOT_COHERENT_CACHE
 212 /* In case of descriptors on DDR but not cache coherent */
 213 #define D_CACHE_FLUSH_LINE(addr, offset)       \
 214 {                   \
 215   __asm__ __volatile__ ("dcbf %0,%1" : : "r" (addr), "r" (offset)); \
 216 }
 217 #else
 218 /* In case of descriptors on DDR and cache coherent */
 219 #define D_CACHE_FLUSH_LINE(addr, offset) ;
 220 #endif /* CONFIG_NOT_COHERENT_CACHE */
 221 #endif /* CONFIG_SPECIAL_CONSISTENT_MEMORY */
 222
 223
 224 #define CPU_PIPE_FLUSH             \
 225 {                 \
 226   __asm__ __volatile__ ("eieio");         \
 227 }
 228
 229
 230 /* defines  */
 231
 232 /* Default port configuration value */
 233 #define PORT_CONFIG_VALUE                       \
 234              ETH_UNICAST_NORMAL_MODE            |   \
 235              ETH_DEFAULT_RX_QUEUE_0             |   \
 236              ETH_DEFAULT_RX_ARP_QUEUE_0         |   \
 237              ETH_RECEIVE_BC_IF_NOT_IP_OR_ARP    |   \
 238              ETH_RECEIVE_BC_IF_IP               |   \
 239              ETH_RECEIVE_BC_IF_ARP              |   \
 240              ETH_CAPTURE_TCP_FRAMES_DIS         |   \
 241              ETH_CAPTURE_UDP_FRAMES_DIS         |   \
 242              ETH_DEFAULT_RX_TCP_QUEUE_0         |   \
 243              ETH_DEFAULT_RX_UDP_QUEUE_0         |   \
 244              ETH_DEFAULT_RX_BPDU_QUEUE_0
 245
 246 /* Default port extend configuration value */
 247 #define PORT_CONFIG_EXTEND_VALUE                \
 248              ETH_SPAN_BPDU_PACKETS_AS_NORMAL    |   \
 249              ETH_PARTITION_DISABLE
 250
 251
 252 /* Default sdma control value */
 253 #ifdef CONFIG_NOT_COHERENT_CACHE
 254 #define PORT_SDMA_CONFIG_VALUE                          \
 255                          ETH_RX_BURST_SIZE_16_64BIT     |       \
 256                          GT_ETH_IPG_INT_RX(0)                   |       \
 257                          ETH_TX_BURST_SIZE_16_64BIT;
 258 #else
 259 #define PORT_SDMA_CONFIG_VALUE                  \
 260                          ETH_RX_BURST_SIZE_4_64BIT      |       \
 261                          GT_ETH_IPG_INT_RX(0)                   |       \
 262                          ETH_TX_BURST_SIZE_4_64BIT;
 263 #endif
 264
 265 #define GT_ETH_IPG_INT_RX(value)                \
 266             ((value & 0x3fff) << 8)
 267
 268 /* Default port serial control value */
 269 #define PORT_SERIAL_CONTROL_VALUE                           \
 270                         ETH_FORCE_LINK_PASS                     |       \
 271                         ETH_ENABLE_AUTO_NEG_FOR_DUPLX           |       \
 272                         ETH_DISABLE_AUTO_NEG_FOR_FLOW_CTRL      |       \
 273                         ETH_ADV_SYMMETRIC_FLOW_CTRL             |       \
 274                         ETH_FORCE_FC_MODE_NO_PAUSE_DIS_TX       |       \
 275                         ETH_FORCE_BP_MODE_NO_JAM                |       \
 276                         BIT9                                    |       \
 277                         ETH_DO_NOT_FORCE_LINK_FAIL              |       \
 278                         ETH_RETRANSMIT_16_ETTEMPTS              |       \
 279                         ETH_ENABLE_AUTO_NEG_SPEED_GMII          |       \
 280                         ETH_DTE_ADV_0                           |       \
 281                         ETH_DISABLE_AUTO_NEG_BYPASS             |       \
 282                         ETH_AUTO_NEG_NO_CHANGE                  |       \
 283                         ETH_MAX_RX_PACKET_1552BYTE              |       \
 284                         ETH_CLR_EXT_LOOPBACK                    |       \
 285                         ETH_SET_FULL_DUPLEX_MODE                |       \
 286                         ETH_ENABLE_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX;
 287
 288 #define RX_BUFFER_MAX_SIZE  0xFFFF
 289 #define TX_BUFFER_MAX_SIZE  0xFFFF   /* Buffer are limited to 64k */
 290
 291 #define RX_BUFFER_MIN_SIZE  0x8
 292 #define TX_BUFFER_MIN_SIZE  0x8
 293
 294 /* Tx WRR confoguration macros */
 295 #define PORT_MAX_TRAN_UNIT          0x24    /* MTU register (default) 9KByte */
 296 #define PORT_MAX_TOKEN_BUCKET_SIZE  0x_fFFF  /* PMTBS register (default)      */
 297 #define PORT_TOKEN_RATE             1023    /* PTTBRC register (default)     */
 298
 299 /* MAC accepet/reject macros */
 300 #define ACCEPT_MAC_ADDR     0
 301 #define REJECT_MAC_ADDR     1
 302
 303 /* Size of a Tx/Rx descriptor used in chain list data structure */
 304 #define RX_DESC_ALIGNED_SIZE            0x20
 305 #define TX_DESC_ALIGNED_SIZE            0x20
 306
 307 /* An offest in Tx descriptors to store data for buffers less than 8 Bytes */
 308 #define TX_BUF_OFFSET_IN_DESC       0x18
 309 /* Buffer offset from buffer pointer */
 310 #define RX_BUF_OFFSET                           0x2
 311
 312 /* Gap define */
 313 #define ETH_BAR_GAP                                     0x8
 314 #define ETH_SIZE_REG_GAP                                0x8
 315 #define ETH_HIGH_ADDR_REMAP_REG_GAP                     0x4
 316 #define ETH_PORT_ACCESS_CTRL_GAP                        0x4
 317
 318 /* Gigabit Ethernet Unit Global Registers */
 319
 320 /* MIB Counters register definitions */
 321 #define ETH_MIB_GOOD_OCTETS_RECEIVED_LOW   0x0
 322 #define ETH_MIB_GOOD_OCTETS_RECEIVED_HIGH  0x4
 323 #define ETH_MIB_BAD_OCTETS_RECEIVED        0x8
 324 #define ETH_MIB_INTERNAL_MAC_TRANSMIT_ERR  0xc
 325 #define ETH_MIB_GOOD_FRAMES_RECEIVED       0x10
 326 #define ETH_MIB_BAD_FRAMES_RECEIVED        0x14
 327 #define ETH_MIB_BROADCAST_FRAMES_RECEIVED  0x18
 328 #define ETH_MIB_MULTICAST_FRAMES_RECEIVED  0x1c
 329 #define ETH_MIB_FRAMES_64_OCTETS           0x20
 330 #define ETH_MIB_FRAMES_65_TO_127_OCTETS    0x24
 331 #define ETH_MIB_FRAMES_128_TO_255_OCTETS   0x28
 332 #define ETH_MIB_FRAMES_256_TO_511_OCTETS   0x2c
 333 #define ETH_MIB_FRAMES_512_TO_1023_OCTETS  0x30
 334 #define ETH_MIB_FRAMES_1024_TO_MAX_OCTETS  0x34
 335 #define ETH_MIB_GOOD_OCTETS_SENT_LOW       0x38
 336 #define ETH_MIB_GOOD_OCTETS_SENT_HIGH      0x3c
 337 #define ETH_MIB_GOOD_FRAMES_SENT           0x40
 338 #define ETH_MIB_EXCESSIVE_COLLISION        0x44
 339 #define ETH_MIB_MULTICAST_FRAMES_SENT      0x48
 340 #define ETH_MIB_BROADCAST_FRAMES_SENT      0x4c
 341 #define ETH_MIB_UNREC_MAC_CONTROL_RECEIVED 0x50
 342 #define ETH_MIB_FC_SENT                    0x54
 343 #define ETH_MIB_GOOD_FC_RECEIVED           0x58
 344 #define ETH_MIB_BAD_FC_RECEIVED            0x5c
 345 #define ETH_MIB_UNDERSIZE_RECEIVED         0x60
 346 #define ETH_MIB_FRAGMENTS_RECEIVED         0x64
 347 #define ETH_MIB_OVERSIZE_RECEIVED          0x68
 348 #define ETH_MIB_JABBER_RECEIVED            0x6c
 349 #define ETH_MIB_MAC_RECEIVE_ERROR          0x70
 350 #define ETH_MIB_BAD_CRC_EVENT              0x74
 351 #define ETH_MIB_COLLISION                  0x78
 352 #define ETH_MIB_LATE_COLLISION             0x7c
 353
 354 /* Port serial status reg (PSR) */
 355 #define ETH_INTERFACE_GMII_MII                          0
 356 #define ETH_INTERFACE_PCM                               BIT0
 357 #define ETH_LINK_IS_DOWN                                0
 358 #define ETH_LINK_IS_UP                                  BIT1
 359 #define ETH_PORT_AT_HALF_DUPLEX                         0
 360 #define ETH_PORT_AT_FULL_DUPLEX                         BIT2
 361 #define ETH_RX_FLOW_CTRL_DISABLED                       0
 362 #define ETH_RX_FLOW_CTRL_ENBALED                        BIT3
 363 #define ETH_GMII_SPEED_100_10                           0
 364 #define ETH_GMII_SPEED_1000                             BIT4
 365 #define ETH_MII_SPEED_10                                0
 366 #define ETH_MII_SPEED_100                               BIT5
 367 #define ETH_NO_TX                                       0
 368 #define ETH_TX_IN_PROGRESS                              BIT7
 369 #define ETH_BYPASS_NO_ACTIVE                            0
 370 #define ETH_BYPASS_ACTIVE                               BIT8
 371 #define ETH_PORT_NOT_AT_PARTITION_STATE                 0
 372 #define ETH_PORT_AT_PARTITION_STATE                     BIT9
 373 #define ETH_PORT_TX_FIFO_NOT_EMPTY                      0
 374 #define ETH_PORT_TX_FIFO_EMPTY                          BIT10
 375
 376
 377 /* These macros describes the Port configuration reg (Px_cR) bits */
 378 #define ETH_UNICAST_NORMAL_MODE                         0
 379 #define ETH_UNICAST_PROMISCUOUS_MODE                    BIT0
 380 #define ETH_DEFAULT_RX_QUEUE_0                          0
 381 #define ETH_DEFAULT_RX_QUEUE_1                          BIT1
 382 #define ETH_DEFAULT_RX_QUEUE_2                          BIT2
 383 #define ETH_DEFAULT_RX_QUEUE_3                          (BIT2 | BIT1)
 384 #define ETH_DEFAULT_RX_QUEUE_4                          BIT3
 385 #define ETH_DEFAULT_RX_QUEUE_5                          (BIT3 | BIT1)
 386 #define ETH_DEFAULT_RX_QUEUE_6                          (BIT3 | BIT2)
 387 #define ETH_DEFAULT_RX_QUEUE_7                          (BIT3 | BIT2 | BIT1)
 388 #define ETH_DEFAULT_RX_ARP_QUEUE_0                      0
 389 #define ETH_DEFAULT_RX_ARP_QUEUE_1                      BIT4
 390 #define ETH_DEFAULT_RX_ARP_QUEUE_2                      BIT5
 391 #define ETH_DEFAULT_RX_ARP_QUEUE_3                      (BIT5 | BIT4)
 392 #define ETH_DEFAULT_RX_ARP_QUEUE_4                      BIT6
 393 #define ETH_DEFAULT_RX_ARP_QUEUE_5                      (BIT6 | BIT4)
 394 #define ETH_DEFAULT_RX_ARP_QUEUE_6                      (BIT6 | BIT5)
 395 #define ETH_DEFAULT_RX_ARP_QUEUE_7                      (BIT6 | BIT5 | BIT4)
 396 #define ETH_RECEIVE_BC_IF_NOT_IP_OR_ARP                 0
 397 #define ETH_REJECT_BC_IF_NOT_IP_OR_ARP                  BIT7
 398 #define ETH_RECEIVE_BC_IF_IP                            0
 399 #define ETH_REJECT_BC_IF_IP                             BIT8
 400 #define ETH_RECEIVE_BC_IF_ARP                           0
 401 #define ETH_REJECT_BC_IF_ARP                            BIT9
 402 #define ETH_TX_AM_NO_UPDATE_ERROR_SUMMARY               BIT12
 403 #define ETH_CAPTURE_TCP_FRAMES_DIS                      0
 404 #define ETH_CAPTURE_TCP_FRAMES_EN                       BIT14
 405 #define ETH_CAPTURE_UDP_FRAMES_DIS                      0
 406 #define ETH_CAPTURE_UDP_FRAMES_EN                       BIT15
 407 #define ETH_DEFAULT_RX_TCP_QUEUE_0                      0
 408 #define ETH_DEFAULT_RX_TCP_QUEUE_1                      BIT16
 409 #define ETH_DEFAULT_RX_TCP_QUEUE_2                      BIT17
 410 #define ETH_DEFAULT_RX_TCP_QUEUE_3                      (BIT17 | BIT16)
 411 #define ETH_DEFAULT_RX_TCP_QUEUE_4                      BIT18
 412 #define ETH_DEFAULT_RX_TCP_QUEUE_5                      (BIT18 | BIT16)
 413 #define ETH_DEFAULT_RX_TCP_QUEUE_6                      (BIT18 | BIT17)
 414 #define ETH_DEFAULT_RX_TCP_QUEUE_7                      (BIT18 | BIT17 | BIT16)
 415 #define ETH_DEFAULT_RX_UDP_QUEUE_0                      0
 416 #define ETH_DEFAULT_RX_UDP_QUEUE_1                      BIT19
 417 #define ETH_DEFAULT_RX_UDP_QUEUE_2                      BIT20
 418 #define ETH_DEFAULT_RX_UDP_QUEUE_3                      (BIT20 | BIT19)
 419 #define ETH_DEFAULT_RX_UDP_QUEUE_4                      (BIT21
 420 #define ETH_DEFAULT_RX_UDP_QUEUE_5                      (BIT21 | BIT19)
 421 #define ETH_DEFAULT_RX_UDP_QUEUE_6                      (BIT21 | BIT20)
 422 #define ETH_DEFAULT_RX_UDP_QUEUE_7                      (BIT21 | BIT20 | BIT19)
 423 #define ETH_DEFAULT_RX_BPDU_QUEUE_0                      0
 424 #define ETH_DEFAULT_RX_BPDU_QUEUE_1                     BIT22
 425 #define ETH_DEFAULT_RX_BPDU_QUEUE_2                     BIT23
 426 #define ETH_DEFAULT_RX_BPDU_QUEUE_3                     (BIT23 | BIT22)
 427 #define ETH_DEFAULT_RX_BPDU_QUEUE_4                     BIT24
 428 #define ETH_DEFAULT_RX_BPDU_QUEUE_5                     (BIT24 | BIT22)
 429 #define ETH_DEFAULT_RX_BPDU_QUEUE_6                     (BIT24 | BIT23)
 430 #define ETH_DEFAULT_RX_BPDU_QUEUE_7                     (BIT24 | BIT23 | BIT22)
 431
 432
 433 /* These macros describes the Port configuration extend reg (Px_cXR) bits*/
 434 #define ETH_CLASSIFY_EN                                 BIT0
 435 #define ETH_SPAN_BPDU_PACKETS_AS_NORMAL                 0
 436 #define ETH_SPAN_BPDU_PACKETS_TO_RX_QUEUE_7             BIT1
 437 #define ETH_PARTITION_DISABLE                           0
 438 #define ETH_PARTITION_ENABLE                            BIT2
 439
 440
 441 /* Tx/Rx queue command reg (RQCR/TQCR)*/
 442 #define ETH_QUEUE_0_ENABLE                              BIT0
 443 #define ETH_QUEUE_1_ENABLE                              BIT1
 444 #define ETH_QUEUE_2_ENABLE                              BIT2
 445 #define ETH_QUEUE_3_ENABLE                              BIT3
 446 #define ETH_QUEUE_4_ENABLE                              BIT4
 447 #define ETH_QUEUE_5_ENABLE                              BIT5
 448 #define ETH_QUEUE_6_ENABLE                              BIT6
 449 #define ETH_QUEUE_7_ENABLE                              BIT7
 450 #define ETH_QUEUE_0_DISABLE                             BIT8
 451 #define ETH_QUEUE_1_DISABLE                             BIT9
 452 #define ETH_QUEUE_2_DISABLE                             BIT10
 453 #define ETH_QUEUE_3_DISABLE                             BIT11
 454 #define ETH_QUEUE_4_DISABLE                             BIT12
 455 #define ETH_QUEUE_5_DISABLE                             BIT13
 456 #define ETH_QUEUE_6_DISABLE                             BIT14
 457 #define ETH_QUEUE_7_DISABLE                             BIT15
 458
 459
 460 /* These macros describes the Port Sdma configuration reg (SDCR) bits */
 461 #define ETH_RIFB                                        BIT0
 462 #define ETH_RX_BURST_SIZE_1_64BIT                       0
 463 #define ETH_RX_BURST_SIZE_2_64BIT                       BIT1
 464 #define ETH_RX_BURST_SIZE_4_64BIT                       BIT2
 465 #define ETH_RX_BURST_SIZE_8_64BIT                       (BIT2 | BIT1)
 466 #define ETH_RX_BURST_SIZE_16_64BIT                      BIT3
 467 #define ETH_BLM_RX_NO_SWAP                              BIT4
 468 #define ETH_BLM_RX_BYTE_SWAP                            0
 469 #define ETH_BLM_TX_NO_SWAP                              BIT5
 470 #define ETH_BLM_TX_BYTE_SWAP                            0
 471 #define ETH_DESCRIPTORS_BYTE_SWAP                       BIT6
 472 #define ETH_DESCRIPTORS_NO_SWAP                         0
 473 #define ETH_TX_BURST_SIZE_1_64BIT                       0
 474 #define ETH_TX_BURST_SIZE_2_64BIT                       BIT22
 475 #define ETH_TX_BURST_SIZE_4_64BIT                       BIT23
 476 #define ETH_TX_BURST_SIZE_8_64BIT                       (BIT23 | BIT22)
 477 #define ETH_TX_BURST_SIZE_16_64BIT                      BIT24
 478
 479
 480 /* These macros describes the Port serial control reg (PSCR) bits */
 481 #define ETH_SERIAL_PORT_DISABLE                         0
 482 #define ETH_SERIAL_PORT_ENABLE                          BIT0
 483 #define ETH_FORCE_LINK_PASS                             BIT1
 484 #define ETH_DO_NOT_FORCE_LINK_PASS                      0
 485 #define ETH_ENABLE_AUTO_NEG_FOR_DUPLX                   0
 486 #define ETH_DISABLE_AUTO_NEG_FOR_DUPLX                  BIT2
 487 #define ETH_ENABLE_AUTO_NEG_FOR_FLOW_CTRL               0
 488 #define ETH_DISABLE_AUTO_NEG_FOR_FLOW_CTRL              BIT3
 489 #define ETH_ADV_NO_FLOW_CTRL                            0
 490 #define ETH_ADV_SYMMETRIC_FLOW_CTRL                     BIT4
 491 #define ETH_FORCE_FC_MODE_NO_PAUSE_DIS_TX               0
 492 #define ETH_FORCE_FC_MODE_TX_PAUSE_DIS                  BIT5
 493 #define ETH_FORCE_BP_MODE_NO_JAM                        0
 494 #define ETH_FORCE_BP_MODE_JAM_TX                        BIT7
 495 #define ETH_FORCE_BP_MODE_JAM_TX_ON_RX_ERR              BIT8
 496 #define ETH_FORCE_LINK_FAIL                             0
 497 #define ETH_DO_NOT_FORCE_LINK_FAIL                      BIT10
 498 #define ETH_RETRANSMIT_16_ETTEMPTS                      0
 499 #define ETH_RETRANSMIT_FOREVER                          BIT11
 500 #define ETH_DISABLE_AUTO_NEG_SPEED_GMII                 BIT13
 501 #define ETH_ENABLE_AUTO_NEG_SPEED_GMII                  0
 502 #define ETH_DTE_ADV_0                                   0
 503 #define ETH_DTE_ADV_1                                   BIT14
 504 #define ETH_DISABLE_AUTO_NEG_BYPASS                     0
 505 #define ETH_ENABLE_AUTO_NEG_BYPASS                      BIT15
 506 #define ETH_AUTO_NEG_NO_CHANGE                          0
 507 #define ETH_RESTART_AUTO_NEG                            BIT16
 508 #define ETH_MAX_RX_PACKET_1518BYTE                      0
 509 #define ETH_MAX_RX_PACKET_1522BYTE                      BIT17
 510 #define ETH_MAX_RX_PACKET_1552BYTE                      BIT18
 511 #define ETH_MAX_RX_PACKET_9022BYTE                      (BIT18 | BIT17)
 512 #define ETH_MAX_RX_PACKET_9192BYTE                      BIT19
 513 #define ETH_MAX_RX_PACKET_9700BYTE                      (BIT19 | BIT17)
 514 #define ETH_SET_EXT_LOOPBACK                            BIT20
 515 #define ETH_CLR_EXT_LOOPBACK                            0
 516 #define ETH_SET_FULL_DUPLEX_MODE                        BIT21
 517 #define ETH_SET_HALF_DUPLEX_MODE                        0
 518 #define ETH_ENABLE_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX       BIT22
 519 #define ETH_DISABLE_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX      0
 520 #define ETH_SET_GMII_SPEED_TO_10_100                    0
 521 #define ETH_SET_GMII_SPEED_TO_1000                      BIT23
 522 #define ETH_SET_MII_SPEED_TO_10                         0
 523 #define ETH_SET_MII_SPEED_TO_100                        BIT24
 524
 525
 526 /* SMI reg */
 527 #define ETH_SMI_BUSY            BIT28   /* 0 - Write, 1 - Read          */
 528 #define ETH_SMI_READ_VALID      BIT27   /* 0 - Write, 1 - Read          */
 529 #define ETH_SMI_OPCODE_WRITE    0       /* Completion of Read operation */
 530 #define ETH_SMI_OPCODE_READ     BIT26   /* Operation is in progress             */
 531
 532 /* SDMA command status fields macros */
 533
 534 /* Tx & Rx descriptors status */
 535 #define ETH_ERROR_SUMMARY                   (BIT0)
 536
 537 /* Tx & Rx descriptors command */
 538 #define ETH_BUFFER_OWNED_BY_DMA             (BIT31)
 539
 540 /* Tx descriptors status */
 541 #define ETH_LC_ERROR                        (0    )
 542 #define ETH_UR_ERROR                        (BIT1 )
 543 #define ETH_RL_ERROR                        (BIT2 )
 544 #define ETH_LLC_SNAP_FORMAT                 (BIT9 )
 545
 546 /* Rx descriptors status */
 547 #define ETH_CRC_ERROR                       (0    )
 548 #define ETH_OVERRUN_ERROR                   (BIT1 )
 549 #define ETH_MAX_FRAME_LENGTH_ERROR          (BIT2 )
 550 #define ETH_RESOURCE_ERROR                  ((BIT2 | BIT1))
 551 #define ETH_VLAN_TAGGED                     (BIT19)
 552 #define ETH_BPDU_FRAME                      (BIT20)
 553 #define ETH_TCP_FRAME_OVER_IP_V_4           (0    )
 554 #define ETH_UDP_FRAME_OVER_IP_V_4           (BIT21)
 555 #define ETH_OTHER_FRAME_TYPE                (BIT22)
 556 #define ETH_LAYER_2_IS_ETH_V_2              (BIT23)
 557 #define ETH_FRAME_TYPE_IP_V_4               (BIT24)
 558 #define ETH_FRAME_HEADER_OK                 (BIT25)
 559 #define ETH_RX_LAST_DESC                    (BIT26)
 560 #define ETH_RX_FIRST_DESC                   (BIT27)
 561 #define ETH_UNKNOWN_DESTINATION_ADDR        (BIT28)
 562 #define ETH_RX_ENABLE_INTERRUPT             (BIT29)
 563 #define ETH_LAYER_4_CHECKSUM_OK             (BIT30)
 564
 565 /* Rx descriptors byte count */
 566 #define ETH_FRAME_FRAGMENTED                (BIT2)
 567
 568 /* Tx descriptors command */
 569 #define ETH_LAYER_4_CHECKSUM_FIRST_DESC         (BIT10)
 570 #define ETH_FRAME_SET_TO_VLAN               (BIT15)
 571 #define ETH_TCP_FRAME                       (0    )
 572 #define ETH_UDP_FRAME                       (BIT16)
 573 #define ETH_GEN_TCP_UDP_CHECKSUM            (BIT17)
 574 #define ETH_GEN_IP_V_4_CHECKSUM             (BIT18)
 575 #define ETH_ZERO_PADDING                    (BIT19)
 576 #define ETH_TX_LAST_DESC                    (BIT20)
 577 #define ETH_TX_FIRST_DESC                   (BIT21)
 578 #define ETH_GEN_CRC                         (BIT22)
 579 #define ETH_TX_ENABLE_INTERRUPT             (BIT23)
 580 #define ETH_AUTO_MODE                       (BIT30)
 581
 582 /* Address decode parameters */
 583 /* Ethernet Base Address Register bits */
 584 #define EBAR_TARGET_DRAM                                        0x00000000
 585 #define EBAR_TARGET_DEVICE                                      0x00000001
 586 #define EBAR_TARGET_CBS                                         0x00000002
 587 #define EBAR_TARGET_PCI0                                        0x00000003
 588 #define EBAR_TARGET_PCI1                                        0x00000004
 589 #define EBAR_TARGET_CUNIT                                       0x00000005
 590 #define EBAR_TARGET_AUNIT                                       0x00000006
 591 #define EBAR_TARGET_GUNIT                                       0x00000007
 592
 593 /* Window attributes */
 594 #define EBAR_ATTR_DRAM_CS0                                      0x00000E00
 595 #define EBAR_ATTR_DRAM_CS1                                      0x00000D00
 596 #define EBAR_ATTR_DRAM_CS2                                      0x00000B00
 597 #define EBAR_ATTR_DRAM_CS3                                      0x00000700
 598
 599 /* DRAM Target interface */
 600 #define EBAR_ATTR_DRAM_NO_CACHE_COHERENCY       0x00000000
 601 #define EBAR_ATTR_DRAM_CACHE_COHERENCY_WT       0x00001000
 602 #define EBAR_ATTR_DRAM_CACHE_COHERENCY_WB       0x00002000
 603
 604 /* Device Bus Target interface */
 605 #define EBAR_ATTR_DEVICE_DEVCS0                         0x00001E00
 606 #define EBAR_ATTR_DEVICE_DEVCS1                         0x00001D00
 607 #define EBAR_ATTR_DEVICE_DEVCS2                         0x00001B00
 608 #define EBAR_ATTR_DEVICE_DEVCS3                         0x00001700
 609 #define EBAR_ATTR_DEVICE_BOOTCS3                        0x00000F00
 610
 611 /* PCI Target interface */
 612 #define EBAR_ATTR_PCI_BYTE_SWAP                         0x00000000
 613 #define EBAR_ATTR_PCI_NO_SWAP                           0x00000100
 614 #define EBAR_ATTR_PCI_BYTE_WORD_SWAP            0x00000200
 615 #define EBAR_ATTR_PCI_WORD_SWAP                         0x00000300
 616 #define EBAR_ATTR_PCI_NO_SNOOP_NOT_ASSERT       0x00000000
 617 #define EBAR_ATTR_PCI_NO_SNOOP_ASSERT           0x00000400
 618 #define EBAR_ATTR_PCI_IO_SPACE                          0x00000000
 619 #define EBAR_ATTR_PCI_MEMORY_SPACE                      0x00000800
 620 #define EBAR_ATTR_PCI_REQ64_FORCE                       0x00000000
 621 #define EBAR_ATTR_PCI_REQ64_SIZE                        0x00001000
 622
 623 /* CPU 60x bus or internal SRAM interface */
 624 #define EBAR_ATTR_CBS_SRAM_BLOCK0                       0x00000000
 625 #define EBAR_ATTR_CBS_SRAM_BLOCK1                       0x00000100
 626 #define EBAR_ATTR_CBS_SRAM                                      0x00000000
 627 #define EBAR_ATTR_CBS_CPU_BUS                           0x00000800
 628
 629 /* Window access control */
 630 #define EWIN_ACCESS_NOT_ALLOWED 0
 631 #define EWIN_ACCESS_READ_ONLY   BIT0
 632 #define EWIN_ACCESS_FULL        (BIT1 | BIT0)
 633 #define EWIN0_ACCESS_MASK               0x0003
 634 #define EWIN1_ACCESS_MASK               0x000C
 635 #define EWIN2_ACCESS_MASK               0x0030
 636 #define EWIN3_ACCESS_MASK               0x00C0
 637
 638 /* typedefs */
 639
 640 typedef enum _eth_port
 641 {
 642     ETH_0 = 0,
 643         ETH_1 = 1,
 644         ETH_2 = 2
 645 }ETH_PORT;
 646
 647 typedef enum _eth_func_ret_status
 648 {
 649     ETH_OK,                     /* Returned as expected.                    */
 650     ETH_ERROR,                  /* Fundamental error.                       */
 651     ETH_RETRY,                  /* Could not process request. Try later.    */
 652     ETH_END_OF_JOB,             /* Ring has nothing to process.             */
 653     ETH_QUEUE_FULL,             /* Ring resource error.                     */
 654     ETH_QUEUE_LAST_RESOURCE     /* Ring resources about to exhaust.         */
 655 }ETH_FUNC_RET_STATUS;
 656
 657 typedef enum _eth_queue
 658 {
 659         ETH_Q0 = 0,
 660         ETH_Q1 = 1,
 661         ETH_Q2 = 2,
 662         ETH_Q3 = 3,
 663         ETH_Q4 = 4,
 664         ETH_Q5 = 5,
 665         ETH_Q6 = 6,
 666     ETH_Q7 = 7
 667 } ETH_QUEUE;
 668
 669 typedef enum _addr_win
 670 {
 671         ETH_WIN0,
 672         ETH_WIN1,
 673         ETH_WIN2,
 674         ETH_WIN3,
 675         ETH_WIN4,
 676     ETH_WIN5
 677 } ETH_ADDR_WIN;
 678
 679 typedef enum _eth_target
 680 {
 681         ETH_TARGET_DRAM  ,
 682         ETH_TARGET_DEVICE,
 683         ETH_TARGET_CBS   ,
 684         ETH_TARGET_PCI0  ,
 685         ETH_TARGET_PCI1
 686 }ETH_TARGET;
 687
 688 typedef struct _eth_rx_desc
 689 {
 690         unsigned short  byte_cnt           ;    /* Descriptor buffer byte count     */
 691         unsigned short  buf_size           ;    /* Buffer size                      */
 692         unsigned int    cmd_sts    ;    /* Descriptor command status        */
 693         unsigned int    next_desc_ptr;    /* Next descriptor pointer          */
 694         unsigned int    buf_ptr    ;    /* Descriptor buffer pointer        */
 695     unsigned int    return_info ;    /* User resource return information */
 696 } ETH_RX_DESC;
 697
 698
 699 typedef struct _eth_tx_desc
 700 {
 701     unsigned short  byte_cnt       ;    /* Descriptor buffer byte count     */
 702     unsigned short  l4i_chk        ;    /* CPU provided TCP Checksum        */
 703     unsigned int    cmd_sts        ;    /* Descriptor command status        */
 704     unsigned int    next_desc_ptr;    /* Next descriptor pointer          */
 705     unsigned int    buf_ptr        ;    /* Descriptor buffer pointer        */
 706     unsigned int    return_info ;    /* User resource return information */
 707 } ETH_TX_DESC;
 708
 709 /* Unified struct for Rx and Tx operations. The user is not required to */
 710 /* be familier with neither Tx nor Rx descriptors.                       */
 711 typedef struct _pkt_info
 712 {
 713         unsigned short  byte_cnt   ;    /* Descriptor buffer byte count     */
 714         unsigned short  l4i_chk    ;    /* Tx CPU provided TCP Checksum     */
 715         unsigned int    cmd_sts    ;    /* Descriptor command status        */
 716         unsigned int    buf_ptr    ;    /* Descriptor buffer pointer        */
 717     unsigned int    return_info ;    /* User resource return information */
 718 } PKT_INFO;
 719
 720
 721 typedef struct _eth_win_param
 722 {
 723     ETH_ADDR_WIN win;   /* Window number. See ETH_ADDR_WIN enum */
 724     ETH_TARGET  target;    /* System targets. See ETH_TARGET enum */
 725     unsigned short attributes;  /* BAR attributes. See above macros. */
 726     unsigned int base_addr; /* Window base address in unsigned int form */
 727     unsigned int high_addr; /* Window high address in unsigned int form */
 728     unsigned int size; /* Size in MBytes. Must be % 64Kbyte. */
 729     bool enable; /* Enable/disable access to the window. */
 730     unsigned short access_ctrl; /* Access ctrl register. see above macros */
 731 } ETH_WIN_PARAM;
 732
 733
 734 /* Ethernet port specific infomation */
 735
 736 typedef struct _eth_port_ctrl
 737 {
 738     ETH_PORT  port_num; /* User Ethernet port number */
 739     int port_phy_addr;  /* User phy address of Ethrnet port */
 740     unsigned char port_mac_addr[6]; /* User defined port MAC address. */
 741     unsigned int  port_config; /* User port configuration value */
 742     unsigned int  port_config_extend; /* User port config extend value */
 743     unsigned int  port_sdma_config; /* User port SDMA config value */
 744     unsigned int  port_serial_control; /* User port serial control value */
 745     unsigned int  port_tx_queue_command; /* Port active Tx queues summary */
 746     unsigned int  port_rx_queue_command; /* Port active Rx queues summary */
 747
 748     /* User function to cast virtual address to CPU bus address */
 749     unsigned int  (*port_virt_to_phys)(unsigned int addr);
 750     /* User scratch pad for user specific data structures */
 751     void *port_private;
 752
 753     bool rx_resource_err[MAX_RX_QUEUE_NUM]; /* Rx ring resource error flag */
 754     bool tx_resource_err[MAX_TX_QUEUE_NUM]; /* Tx ring resource error flag */
 755
 756     /* Tx/Rx rings managment indexes fields. For driver use */
 757
 758     /* Next available Rx resource */
 759     volatile ETH_RX_DESC *p_rx_curr_desc_q[MAX_RX_QUEUE_NUM];
 760     /* Returning Rx resource */
 761     volatile ETH_RX_DESC *p_rx_used_desc_q[MAX_RX_QUEUE_NUM];
 762
 763     /* Next available Tx resource */
 764     volatile ETH_TX_DESC *p_tx_curr_desc_q[MAX_TX_QUEUE_NUM];
 765     /* Returning Tx resource */
 766     volatile ETH_TX_DESC *p_tx_used_desc_q[MAX_TX_QUEUE_NUM];
 767     /* An extra Tx index to support transmit of multiple buffers per packet */
 768     volatile ETH_TX_DESC *p_tx_first_desc_q[MAX_TX_QUEUE_NUM];
 769
 770     /* Tx/Rx rings size and base variables fields. For driver use */
 771
 772     volatile ETH_RX_DESC        *p_rx_desc_area_base[MAX_RX_QUEUE_NUM];
 773     unsigned int                 rx_desc_area_size[MAX_RX_QUEUE_NUM];
 774     char                        *p_rx_buffer_base[MAX_RX_QUEUE_NUM];
 775
 776     volatile ETH_TX_DESC        *p_tx_desc_area_base[MAX_TX_QUEUE_NUM];
 777     unsigned int                 tx_desc_area_size[MAX_TX_QUEUE_NUM];
 778     char                        *p_tx_buffer_base[MAX_TX_QUEUE_NUM];
 779
 780 } ETH_PORT_INFO;
 781
 782
 783 /* ethernet.h API list */
 784
 785 /* Port operation control routines */
 786 static void eth_port_init (ETH_PORT_INFO *p_eth_port_ctrl);
 787 static void eth_port_reset(ETH_PORT     eth_port_num);
 788 static bool eth_port_start(ETH_PORT_INFO *p_eth_port_ctrl);
 789
 790
 791 /* Port MAC address routines */
 792 static void eth_port_uc_addr_set (ETH_PORT eth_port_num,
 793                                   unsigned char *p_addr,
 794                                   ETH_QUEUE queue);
 795 #if 0   /* FIXME */
 796 static void eth_port_mc_addr    (ETH_PORT eth_port_num,
 797                                  unsigned char *p_addr,
 798                                  ETH_QUEUE queue,
 799                                  int option);
 800 #endif
 801
 802 /* PHY and MIB routines */
 803 static bool ethernet_phy_reset(ETH_PORT eth_port_num);
 804
 805 static bool eth_port_write_smi_reg(ETH_PORT eth_port_num,
 806                                    unsigned int phy_reg,
 807                                    unsigned int value);
 808
 809 static bool eth_port_read_smi_reg(ETH_PORT eth_port_num,
 810                                   unsigned int phy_reg,
 811                                   unsigned int* value);
 812
 813 static void eth_clear_mib_counters(ETH_PORT     eth_port_num);
 814
 815 /* Port data flow control routines */
 816 static ETH_FUNC_RET_STATUS eth_port_send    (ETH_PORT_INFO *p_eth_port_ctrl,
 817                                              ETH_QUEUE tx_queue,
 818                                              PKT_INFO *p_pkt_info);
 819 static ETH_FUNC_RET_STATUS eth_tx_return_desc(ETH_PORT_INFO *p_eth_port_ctrl,
 820                                               ETH_QUEUE tx_queue,
 821                                               PKT_INFO *p_pkt_info);
 822 static ETH_FUNC_RET_STATUS eth_port_receive (ETH_PORT_INFO *p_eth_port_ctrl,
 823                                              ETH_QUEUE rx_queue,
 824                                              PKT_INFO *p_pkt_info);
 825 static ETH_FUNC_RET_STATUS eth_rx_return_buff(ETH_PORT_INFO *p_eth_port_ctrl,
 826                                               ETH_QUEUE rx_queue,
 827                                               PKT_INFO *p_pkt_info);
 828
 829
 830 static bool ether_init_tx_desc_ring(ETH_PORT_INFO  *p_eth_port_ctrl,
 831                                     ETH_QUEUE   tx_queue,
 832                                     int                         tx_desc_num,
 833                                     int                         tx_buff_size,
 834                                     unsigned int        tx_desc_base_addr,
 835                                     unsigned int        tx_buff_base_addr);
 836
 837 static bool ether_init_rx_desc_ring(ETH_PORT_INFO  *p_eth_port_ctrl,
 838                                     ETH_QUEUE   rx_queue,
 839                                     int                         rx_desc_num,
 840                                     int                         rx_buff_size,
 841                                     unsigned int        rx_desc_base_addr,
 842                                     unsigned int        rx_buff_base_addr);
 843
 844 #endif /* MV64360_ETH_ */