drivers/net/acenic.h

   1 #ifndef _ACENIC_H_
   2 #define _ACENIC_H_
   3
   4
   5 /*
   6  * Generate TX index update each time, when TX ring is closed.
   7  * Normally, this is not useful, because results in more dma (and irqs
   8  * without TX_COAL_INTS_ONLY).
   9  */
  10 #define USE_TX_COAL_NOW  0
  11
  12 /*
  13  * Addressing:
  14  *
  15  * The Tigon uses 64-bit host addresses, regardless of their actual
  16  * length, and it expects a big-endian format. For 32 bit systems the
  17  * upper 32 bits of the address are simply ignored (zero), however for
  18  * little endian 64 bit systems (Alpha) this looks strange with the
  19  * two parts of the address word being swapped.
  20  *
  21  * The addresses are split in two 32 bit words for all architectures
  22  * as some of them are in PCI shared memory and it is necessary to use
  23  * readl/writel to access them.
  24  *
  25  * The addressing code is derived from Pete Wyckoff's work, but
  26  * modified to deal properly with readl/writel usage.
  27  */
  28
  29 struct ace_regs {
  30         u32     pad0[16];       /* PCI control registers */
  31
  32         u32     HostCtrl;       /* 0x40 */
  33         u32     LocalCtrl;
  34
  35         u32     pad1[2];
  36
  37         u32     MiscCfg;        /* 0x50 */
  38
  39         u32     pad2[2];
  40
  41         u32     PciState;
  42
  43         u32     pad3[2];        /* 0x60 */
  44
  45         u32     WinBase;
  46         u32     WinData;
  47
  48         u32     pad4[12];       /* 0x70 */
  49
  50         u32     DmaWriteState;  /* 0xa0 */
  51         u32     pad5[3];
  52         u32     DmaReadState;   /* 0xb0 */
  53
  54         u32     pad6[26];
  55
  56         u32     AssistState;
  57
  58         u32     pad7[8];        /* 0x120 */
  59
  60         u32     CpuCtrl;        /* 0x140 */
  61         u32     Pc;
  62
  63         u32     pad8[3];
  64
  65         u32     SramAddr;       /* 0x154 */
  66         u32     SramData;
  67
  68         u32     pad9[49];
  69
  70         u32     MacRxState;     /* 0x220 */
  71
  72         u32     pad10[7];
  73
  74         u32     CpuBCtrl;       /* 0x240 */
  75         u32     PcB;
  76
  77         u32     pad11[3];
  78
  79         u32     SramBAddr;      /* 0x254 */
  80         u32     SramBData;
  81
  82         u32     pad12[105];
  83
  84         u32     pad13[32];      /* 0x400 */
  85         u32     Stats[32];
  86
  87         u32     Mb0Hi;          /* 0x500 */
  88         u32     Mb0Lo;
  89         u32     Mb1Hi;
  90         u32     CmdPrd;
  91         u32     Mb2Hi;
  92         u32     TxPrd;
  93         u32     Mb3Hi;
  94         u32     RxStdPrd;
  95         u32     Mb4Hi;
  96         u32     RxJumboPrd;
  97         u32     Mb5Hi;
  98         u32     RxMiniPrd;
  99         u32     Mb6Hi;
 100         u32     Mb6Lo;
 101         u32     Mb7Hi;
 102         u32     Mb7Lo;
 103         u32     Mb8Hi;
 104         u32     Mb8Lo;
 105         u32     Mb9Hi;
 106         u32     Mb9Lo;
 107         u32     MbAHi;
 108         u32     MbALo;
 109         u32     MbBHi;
 110         u32     MbBLo;
 111         u32     MbCHi;
 112         u32     MbCLo;
 113         u32     MbDHi;
 114         u32     MbDLo;
 115         u32     MbEHi;
 116         u32     MbELo;
 117         u32     MbFHi;
 118         u32     MbFLo;
 119
 120         u32     pad14[32];
 121
 122         u32     MacAddrHi;      /* 0x600 */
 123         u32     MacAddrLo;
 124         u32     InfoPtrHi;
 125         u32     InfoPtrLo;
 126         u32     MultiCastHi;    /* 0x610 */
 127         u32     MultiCastLo;
 128         u32     ModeStat;
 129         u32     DmaReadCfg;
 130         u32     DmaWriteCfg;    /* 0x620 */
 131         u32     TxBufRat;
 132         u32     EvtCsm;
 133         u32     CmdCsm;
 134         u32     TuneRxCoalTicks;/* 0x630 */
 135         u32     TuneTxCoalTicks;
 136         u32     TuneStatTicks;
 137         u32     TuneMaxTxDesc;
 138         u32     TuneMaxRxDesc;  /* 0x640 */
 139         u32     TuneTrace;
 140         u32     TuneLink;
 141         u32     TuneFastLink;
 142         u32     TracePtr;       /* 0x650 */
 143         u32     TraceStrt;
 144         u32     TraceLen;
 145         u32     IfIdx;
 146         u32     IfMtu;          /* 0x660 */
 147         u32     MaskInt;
 148         u32     GigLnkState;
 149         u32     FastLnkState;
 150         u32     pad16[4];       /* 0x670 */
 151         u32     RxRetCsm;       /* 0x680 */
 152
 153         u32     pad17[31];
 154
 155         u32     CmdRng[64];     /* 0x700 */
 156         u32     Window[0x200];
 157 };
 158
 159
 160 typedef struct {
 161         u32 addrhi;
 162         u32 addrlo;
 163 } aceaddr;
 164
 165
 166 #define ACE_WINDOW_SIZE 0x800
 167
 168 #define ACE_JUMBO_MTU 9000
 169 #define ACE_STD_MTU 1500
 170
 171 #define ACE_TRACE_SIZE 0x8000
 172
 173 /*
 174  * Host control register bits.
 175  */
 176
 177 #define IN_INT          0x01
 178 #define CLR_INT         0x02
 179 #define HW_RESET        0x08
 180 #define BYTE_SWAP       0x10
 181 #define WORD_SWAP       0x20
 182 #define MASK_INTS       0x40
 183
 184 /*
 185  * Local control register bits.
 186  */
 187
 188 #define EEPROM_DATA_IN          0x800000
 189 #define EEPROM_DATA_OUT         0x400000
 190 #define EEPROM_WRITE_ENABLE     0x200000
 191 #define EEPROM_CLK_OUT          0x100000
 192
 193 #define EEPROM_BASE             0xa0000000
 194
 195 #define EEPROM_WRITE_SELECT     0xa0
 196 #define EEPROM_READ_SELECT      0xa1
 197
 198 #define SRAM_BANK_512K          0x200
 199
 200
 201 /*
 202  * udelay() values for when clocking the eeprom
 203  */
 204 #define ACE_SHORT_DELAY         2
 205 #define ACE_LONG_DELAY          4
 206
 207
 208 /*
 209  * Misc Config bits
 210  */
 211
 212 #define SYNC_SRAM_TIMING        0x100000
 213
 214
 215 /*
 216  * CPU state bits.
 217  */
 218
 219 #define CPU_RESET               0x01
 220 #define CPU_TRACE               0x02
 221 #define CPU_PROM_FAILED         0x10
 222 #define CPU_HALT                0x00010000
 223 #define CPU_HALTED              0xffff0000
 224
 225
 226 /*
 227  * PCI State bits.
 228  */
 229
 230 #define DMA_READ_MAX_4          0x04
 231 #define DMA_READ_MAX_16         0x08
 232 #define DMA_READ_MAX_32         0x0c
 233 #define DMA_READ_MAX_64         0x10
 234 #define DMA_READ_MAX_128        0x14
 235 #define DMA_READ_MAX_256        0x18
 236 #define DMA_READ_MAX_1K         0x1c
 237 #define DMA_WRITE_MAX_4         0x20
 238 #define DMA_WRITE_MAX_16        0x40
 239 #define DMA_WRITE_MAX_32        0x60
 240 #define DMA_WRITE_MAX_64        0x80
 241 #define DMA_WRITE_MAX_128       0xa0
 242 #define DMA_WRITE_MAX_256       0xc0
 243 #define DMA_WRITE_MAX_1K        0xe0
 244 #define DMA_READ_WRITE_MASK     0xfc
 245 #define MEM_READ_MULTIPLE       0x00020000
 246 #define PCI_66MHZ               0x00080000
 247 #define PCI_32BIT               0x00100000
 248 #define DMA_WRITE_ALL_ALIGN     0x00800000
 249 #define READ_CMD_MEM            0x06000000
 250 #define WRITE_CMD_MEM           0x70000000
 251
 252
 253 /*
 254  * Mode status
 255  */
 256
 257 #define ACE_BYTE_SWAP_BD        0x02
 258 #define ACE_WORD_SWAP_BD        0x04            /* not actually used */
 259 #define ACE_WARN                0x08
 260 #define ACE_BYTE_SWAP_DMA       0x10
 261 #define ACE_NO_JUMBO_FRAG       0x200
 262 #define ACE_FATAL               0x40000000
 263
 264
 265 /*
 266  * DMA config
 267  */
 268
 269 #define DMA_THRESH_1W           0x10
 270 #define DMA_THRESH_2W           0x20
 271 #define DMA_THRESH_4W           0x40
 272 #define DMA_THRESH_8W           0x80
 273 #define DMA_THRESH_16W          0x100
 274 #define DMA_THRESH_32W          0x0     /* not described in doc, but exists. */
 275
 276
 277 /*
 278  * Tuning parameters
 279  */
 280
 281 #define TICKS_PER_SEC           1000000
 282
 283
 284 /*
 285  * Link bits
 286  */
 287
 288 #define LNK_PREF                0x00008000
 289 #define LNK_10MB                0x00010000
 290 #define LNK_100MB               0x00020000
 291 #define LNK_1000MB              0x00040000
 292 #define LNK_FULL_DUPLEX         0x00080000
 293 #define LNK_HALF_DUPLEX         0x00100000
 294 #define LNK_TX_FLOW_CTL_Y       0x00200000
 295 #define LNK_NEG_ADVANCED        0x00400000
 296 #define LNK_RX_FLOW_CTL_Y       0x00800000
 297 #define LNK_NIC                 0x01000000
 298 #define LNK_JAM                 0x02000000
 299 #define LNK_JUMBO               0x04000000
 300 #define LNK_ALTEON              0x08000000
 301 #define LNK_NEG_FCTL            0x10000000
 302 #define LNK_NEGOTIATE           0x20000000
 303 #define LNK_ENABLE              0x40000000
 304 #define LNK_UP                  0x80000000
 305
 306
 307 /*
 308  * Event definitions
 309  */
 310
 311 #define EVT_RING_ENTRIES        256
 312 #define EVT_RING_SIZE   (EVT_RING_ENTRIES * sizeof(struct event))
 313
 314 struct event {
 315 #ifdef __LITTLE_ENDIAN_BITFIELD
 316         u32     idx:12;
 317         u32     code:12;
 318         u32     evt:8;
 319 #else
 320         u32     evt:8;
 321         u32     code:12;
 322         u32     idx:12;
 323 #endif
 324         u32     pad;
 325 };
 326
 327
 328 /*
 329  * Events
 330  */
 331
 332 #define E_FW_RUNNING            0x01
 333 #define E_STATS_UPDATED         0x04
 334
 335 #define E_STATS_UPDATE          0x04
 336
 337 #define E_LNK_STATE             0x06
 338 #define E_C_LINK_UP             0x01
 339 #define E_C_LINK_DOWN           0x02
 340 #define E_C_LINK_10_100         0x03
 341
 342 #define E_ERROR                 0x07
 343 #define E_C_ERR_INVAL_CMD       0x01
 344 #define E_C_ERR_UNIMP_CMD       0x02
 345 #define E_C_ERR_BAD_CFG         0x03
 346
 347 #define E_MCAST_LIST            0x08
 348 #define E_C_MCAST_ADDR_ADD      0x01
 349 #define E_C_MCAST_ADDR_DEL      0x02
 350
 351 #define E_RESET_JUMBO_RNG       0x09
 352
 353
 354 /*
 355  * Commands
 356  */
 357
 358 #define CMD_RING_ENTRIES        64
 359
 360 struct cmd {
 361 #ifdef __LITTLE_ENDIAN_BITFIELD
 362         u32     idx:12;
 363         u32     code:12;
 364         u32     evt:8;
 365 #else
 366         u32     evt:8;
 367         u32     code:12;
 368         u32     idx:12;
 369 #endif
 370 };
 371
 372
 373 #define C_HOST_STATE            0x01
 374 #define C_C_STACK_UP            0x01
 375 #define C_C_STACK_DOWN          0x02
 376
 377 #define C_FDR_FILTERING         0x02
 378 #define C_C_FDR_FILT_ENABLE     0x01
 379 #define C_C_FDR_FILT_DISABLE    0x02
 380
 381 #define C_SET_RX_PRD_IDX        0x03
 382 #define C_UPDATE_STATS          0x04
 383 #define C_RESET_JUMBO_RNG       0x05
 384 #define C_ADD_MULTICAST_ADDR    0x08
 385 #define C_DEL_MULTICAST_ADDR    0x09
 386
 387 #define C_SET_PROMISC_MODE      0x0a
 388 #define C_C_PROMISC_ENABLE      0x01
 389 #define C_C_PROMISC_DISABLE     0x02
 390
 391 #define C_LNK_NEGOTIATION       0x0b
 392 #define C_C_NEGOTIATE_BOTH      0x00
 393 #define C_C_NEGOTIATE_GIG       0x01
 394 #define C_C_NEGOTIATE_10_100    0x02
 395
 396 #define C_SET_MAC_ADDR          0x0c
 397 #define C_CLEAR_PROFILE         0x0d
 398
 399 #define C_SET_MULTICAST_MODE    0x0e
 400 #define C_C_MCAST_ENABLE        0x01
 401 #define C_C_MCAST_DISABLE       0x02
 402
 403 #define C_CLEAR_STATS           0x0f
 404 #define C_SET_RX_JUMBO_PRD_IDX  0x10
 405 #define C_REFRESH_STATS         0x11
 406
 407
 408 /*
 409  * Descriptor flags
 410  */
 411 #define BD_FLG_TCP_UDP_SUM      0x01
 412 #define BD_FLG_IP_SUM           0x02
 413 #define BD_FLG_END              0x04
 414 #define BD_FLG_MORE             0x08
 415 #define BD_FLG_JUMBO            0x10
 416 #define BD_FLG_UCAST            0x20
 417 #define BD_FLG_MCAST            0x40
 418 #define BD_FLG_BCAST            0x60
 419 #define BD_FLG_TYP_MASK         0x60
 420 #define BD_FLG_IP_FRAG          0x80
 421 #define BD_FLG_IP_FRAG_END      0x100
 422 #define BD_FLG_VLAN_TAG         0x200
 423 #define BD_FLG_FRAME_ERROR      0x400
 424 #define BD_FLG_COAL_NOW         0x800
 425 #define BD_FLG_MINI             0x1000
 426
 427
 428 /*
 429  * Ring Control block flags
 430  */
 431 #define RCB_FLG_TCP_UDP_SUM     0x01
 432 #define RCB_FLG_IP_SUM          0x02
 433 #define RCB_FLG_NO_PSEUDO_HDR   0x08
 434 #define RCB_FLG_VLAN_ASSIST     0x10
 435 #define RCB_FLG_COAL_INT_ONLY   0x20
 436 #define RCB_FLG_TX_HOST_RING    0x40
 437 #define RCB_FLG_IEEE_SNAP_SUM   0x80
 438 #define RCB_FLG_EXT_RX_BD       0x100
 439 #define RCB_FLG_RNG_DISABLE     0x200
 440
 441
 442 /*
 443  * TX ring - maximum TX ring entries for Tigon I's is 128
 444  */
 445 #define MAX_TX_RING_ENTRIES     256
 446 #define TIGON_I_TX_RING_ENTRIES 128
 447 #define TX_RING_SIZE            (MAX_TX_RING_ENTRIES * sizeof(struct tx_desc))
 448 #define TX_RING_BASE            0x3800
 449
 450 struct tx_desc{
 451         aceaddr addr;
 452         u32     flagsize;
 453 #if 0
 454 /*
 455  * This is in PCI shared mem and must be accessed with readl/writel
 456  * real layout is:
 457  */
 458 #if __LITTLE_ENDIAN
 459         u16     flags;
 460         u16     size;
 461         u16     vlan;
 462         u16     reserved;
 463 #else
 464         u16     size;
 465         u16     flags;
 466         u16     reserved;
 467         u16     vlan;
 468 #endif
 469 #endif
 470         u32     vlanres;
 471 };
 472
 473
 474 #define RX_STD_RING_ENTRIES     512
 475 #define RX_STD_RING_SIZE        (RX_STD_RING_ENTRIES * sizeof(struct rx_desc))
 476
 477 #define RX_JUMBO_RING_ENTRIES   256
 478 #define RX_JUMBO_RING_SIZE      (RX_JUMBO_RING_ENTRIES *sizeof(struct rx_desc))
 479
 480 #define RX_MINI_RING_ENTRIES    1024
 481 #define RX_MINI_RING_SIZE       (RX_MINI_RING_ENTRIES *sizeof(struct rx_desc))
 482
 483 #define RX_RETURN_RING_ENTRIES  2048
 484 #define RX_RETURN_RING_SIZE     (RX_MAX_RETURN_RING_ENTRIES * \
 485                                  sizeof(struct rx_desc))
 486
 487 struct rx_desc{
 488         aceaddr addr;
 489 #ifdef __LITTLE_ENDIAN
 490         u16     size;
 491         u16     idx;
 492 #else
 493         u16     idx;
 494         u16     size;
 495 #endif
 496 #ifdef __LITTLE_ENDIAN
 497         u16     flags;
 498         u16     type;
 499 #else
 500         u16     type;
 501         u16     flags;
 502 #endif
 503 #ifdef __LITTLE_ENDIAN
 504         u16     tcp_udp_csum;
 505         u16     ip_csum;
 506 #else
 507         u16     ip_csum;
 508         u16     tcp_udp_csum;
 509 #endif
 510 #ifdef __LITTLE_ENDIAN
 511         u16     vlan;
 512         u16     err_flags;
 513 #else
 514         u16     err_flags;
 515         u16     vlan;
 516 #endif
 517         u32     reserved;
 518         u32     opague;
 519 };
 520
 521
 522 /*
 523  * This struct is shared with the NIC firmware.
 524  */
 525 struct ring_ctrl {
 526         aceaddr rngptr;
 527 #ifdef __LITTLE_ENDIAN
 528         u16     flags;
 529         u16     max_len;
 530 #else
 531         u16     max_len;
 532         u16     flags;
 533 #endif
 534         u32     pad;
 535 };
 536
 537
 538 struct ace_mac_stats {
 539         u32 excess_colls;
 540         u32 coll_1;
 541         u32 coll_2;
 542         u32 coll_3;
 543         u32 coll_4;
 544         u32 coll_5;
 545         u32 coll_6;
 546         u32 coll_7;
 547         u32 coll_8;
 548         u32 coll_9;
 549         u32 coll_10;
 550         u32 coll_11;
 551         u32 coll_12;
 552         u32 coll_13;
 553         u32 coll_14;
 554         u32 coll_15;
 555         u32 late_coll;
 556         u32 defers;
 557         u32 crc_err;
 558         u32 underrun;
 559         u32 crs_err;
 560         u32 pad[3];
 561         u32 drop_ula;
 562         u32 drop_mc;
 563         u32 drop_fc;
 564         u32 drop_space;
 565         u32 coll;
 566         u32 kept_bc;
 567         u32 kept_mc;
 568         u32 kept_uc;
 569 };
 570
 571
 572 struct ace_info {
 573         union {
 574                 u32 stats[256];
 575         } s;
 576         struct ring_ctrl        evt_ctrl;
 577         struct ring_ctrl        cmd_ctrl;
 578         struct ring_ctrl        tx_ctrl;
 579         struct ring_ctrl        rx_std_ctrl;
 580         struct ring_ctrl        rx_jumbo_ctrl;
 581         struct ring_ctrl        rx_mini_ctrl;
 582         struct ring_ctrl        rx_return_ctrl;
 583         aceaddr evt_prd_ptr;
 584         aceaddr rx_ret_prd_ptr;
 585         aceaddr tx_csm_ptr;
 586         aceaddr stats2_ptr;
 587 };
 588
 589
 590 struct ring_info {
 591         struct sk_buff          *skb;
 592         DEFINE_DMA_UNMAP_ADDR(mapping);
 593 };
 594
 595
 596 /*
 597  * Funny... As soon as we add maplen on alpha, it starts to work
 598  * much slower. Hmm... is it because struct does not fit to one cacheline?
 599  * So, split tx_ring_info.
 600  */
 601 struct tx_ring_info {
 602         struct sk_buff          *skb;
 603         DEFINE_DMA_UNMAP_ADDR(mapping);
 604         DEFINE_DMA_UNMAP_LEN(maplen);
 605 };
 606
 607
 608 /*
 609  * struct ace_skb holding the rings of skb's. This is an awful lot of
 610  * pointers, but I don't see any other smart mode to do this in an
 611  * efficient manner ;-(
 612  */
 613 struct ace_skb
 614 {
 615         struct tx_ring_info     tx_skbuff[MAX_TX_RING_ENTRIES];
 616         struct ring_info        rx_std_skbuff[RX_STD_RING_ENTRIES];
 617         struct ring_info        rx_mini_skbuff[RX_MINI_RING_ENTRIES];
 618         struct ring_info        rx_jumbo_skbuff[RX_JUMBO_RING_ENTRIES];
 619 };
 620
 621
 622 /*
 623  * Struct private for the AceNIC.
 624  *
 625  * Elements are grouped so variables used by the tx handling goes
 626  * together, and will go into the same cache lines etc. in order to
 627  * avoid cache line contention between the rx and tx handling on SMP.
 628  *
 629  * Frequently accessed variables are put at the beginning of the
 630  * struct to help the compiler generate better/shorter code.
 631  */
 632 struct ace_private
 633 {
 634         struct ace_info         *info;
 635         struct ace_regs __iomem *regs;          /* register base */
 636         struct ace_skb          *skb;
 637         dma_addr_t              info_dma;       /* 32/64 bit */
 638
 639         int                     version, link;
 640         int                     promisc, mcast_all;
 641
 642         /*
 643          * TX elements
 644          */
 645         struct tx_desc          *tx_ring;
 646         u32                     tx_prd;
 647         volatile u32            tx_ret_csm;
 648         int                     tx_ring_entries;
 649
 650         /*
 651          * RX elements
 652          */
 653         unsigned long           std_refill_busy
 654                                 __attribute__ ((aligned (SMP_CACHE_BYTES)));
 655         unsigned long           mini_refill_busy, jumbo_refill_busy;
 656         atomic_t                cur_rx_bufs;
 657         atomic_t                cur_mini_bufs;
 658         atomic_t                cur_jumbo_bufs;
 659         u32                     rx_std_skbprd, rx_mini_skbprd, rx_jumbo_skbprd;
 660         u32                     cur_rx;
 661
 662         struct rx_desc          *rx_std_ring;
 663         struct rx_desc          *rx_jumbo_ring;
 664         struct rx_desc          *rx_mini_ring;
 665         struct rx_desc          *rx_return_ring;
 666
 667 #if ACENIC_DO_VLAN
 668         struct vlan_group       *vlgrp;
 669 #endif
 670
 671         int                     tasklet_pending, jumbo;
 672         struct tasklet_struct   ace_tasklet;
 673
 674         struct event            *evt_ring;
 675
 676         volatile u32            *evt_prd, *rx_ret_prd, *tx_csm;
 677
 678         dma_addr_t              tx_ring_dma;    /* 32/64 bit */
 679         dma_addr_t              rx_ring_base_dma;
 680         dma_addr_t              evt_ring_dma;
 681         dma_addr_t              evt_prd_dma, rx_ret_prd_dma, tx_csm_dma;
 682
 683         unsigned char           *trace_buf;
 684         struct pci_dev          *pdev;
 685         struct net_device       *next;
 686         volatile int            fw_running;
 687         int                     board_idx;
 688         u16                     pci_command;
 689         u8                      pci_latency;
 690         const char              *name;
 691 #ifdef INDEX_DEBUG
 692         spinlock_t              debug_lock
 693                                 __attribute__ ((aligned (SMP_CACHE_BYTES)));
 694         u32                     last_tx, last_std_rx, last_mini_rx;
 695 #endif
 696         int                     pci_using_dac;
 697         u8                      firmware_major;
 698         u8                      firmware_minor;
 699         u8                      firmware_fix;
 700         u32                     firmware_start;
 701 };
 702
 703
 704 #define TX_RESERVED     MAX_SKB_FRAGS
 705
 706 static inline int tx_space (struct ace_private *ap, u32 csm, u32 prd)
 707 {
 708         return (csm - prd - 1) & (ACE_TX_RING_ENTRIES(ap) - 1);
 709 }
 710
 711 #define tx_free(ap)             tx_space((ap)->tx_ret_csm, (ap)->tx_prd, ap)
 712 #define tx_ring_full(ap, csm, prd)      (tx_space(ap, csm, prd) <= TX_RESERVED)
 713
 714 static inline void set_aceaddr(aceaddr *aa, dma_addr_t addr)
 715 {
 716         u64 baddr = (u64) addr;
 717         aa->addrlo = baddr & 0xffffffff;
 718         aa->addrhi = baddr >> 32;
 719         wmb();
 720 }
 721
 722
 723 static inline void ace_set_txprd(struct ace_regs __iomem *regs,
 724                                  struct ace_private *ap, u32 value)
 725 {
 726 #ifdef INDEX_DEBUG
 727         unsigned long flags;
 728         spin_lock_irqsave(&ap->debug_lock, flags);
 729         writel(value, &regs->TxPrd);
 730         if (value == ap->last_tx)
 731                 printk(KERN_ERR "AceNIC RACE ALERT! writing identical value "
 732                        "to tx producer (%i)\n", value);
 733         ap->last_tx = value;
 734         spin_unlock_irqrestore(&ap->debug_lock, flags);
 735 #else
 736         writel(value, &regs->TxPrd);
 737 #endif
 738         wmb();
 739 }
 740
 741
 742 static inline void ace_mask_irq(struct net_device *dev)
 743 {
 744         struct ace_private *ap = netdev_priv(dev);
 745         struct ace_regs __iomem *regs = ap->regs;
 746
 747         if (ACE_IS_TIGON_I(ap))
 748                 writel(1, &regs->MaskInt);
 749         else
 750                 writel(readl(&regs->HostCtrl) | MASK_INTS, &regs->HostCtrl);
 751
 752         ace_sync_irq(dev->irq);
 753 }
 754
 755
 756 static inline void ace_unmask_irq(struct net_device *dev)
 757 {
 758         struct ace_private *ap = netdev_priv(dev);
 759         struct ace_regs __iomem *regs = ap->regs;
 760
 761         if (ACE_IS_TIGON_I(ap))
 762                 writel(0, &regs->MaskInt);
 763         else
 764                 writel(readl(&regs->HostCtrl) & ~MASK_INTS, &regs->HostCtrl);
 765 }
 766
 767
 768 /*
 769  * Prototypes
 770  */
 771 static int ace_init(struct net_device *dev);
 772 static void ace_load_std_rx_ring(struct ace_private *ap, int nr_bufs);
 773 static void ace_load_mini_rx_ring(struct ace_private *ap, int nr_bufs);
 774 static void ace_load_jumbo_rx_ring(struct ace_private *ap, int nr_bufs);
 775 static irqreturn_t ace_interrupt(int irq, void *dev_id);
 776 static int ace_load_firmware(struct net_device *dev);
 777 static int ace_open(struct net_device *dev);
 778 static netdev_tx_t ace_start_xmit(struct sk_buff *skb,
 779                                   struct net_device *dev);
 780 static int ace_close(struct net_device *dev);
 781 static void ace_tasklet(unsigned long dev);
 782 static void ace_dump_trace(struct ace_private *ap);
 783 static void ace_set_multicast_list(struct net_device *dev);
 784 static int ace_change_mtu(struct net_device *dev, int new_mtu);
 785 static int ace_set_mac_addr(struct net_device *dev, void *p);
 786 static void ace_set_rxtx_parms(struct net_device *dev, int jumbo);
 787 static int ace_allocate_descriptors(struct net_device *dev);
 788 static void ace_free_descriptors(struct net_device *dev);
 789 static void ace_init_cleanup(struct net_device *dev);
 790 static struct net_device_stats *ace_get_stats(struct net_device *dev);
 791 static int read_eeprom_byte(struct net_device *dev, unsigned long offset);
 792 #if ACENIC_DO_VLAN
 793 static void ace_vlan_rx_register(struct net_device *dev, struct vlan_group *grp);
 794 #endif
 795
 796 #endif /* _ACENIC_H_ */