drivers/net/ethernet/alteon/acenic.h

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