sys/dev/sfxge/common/efsys.h

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2010-2016 Solarflare Communications Inc.
   5  * All rights reserved.
   6  *
   7  * This software was developed in part by Philip Paeps under contract for
   8  * Solarflare Communications, Inc.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright notice,
  14  *    this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright notice,
  16  *    this list of conditions and the following disclaimer in the documentation
  17  *    and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  26  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  28  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  29  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  *
  31  * The views and conclusions contained in the software and documentation are
  32  * those of the authors and should not be interpreted as representing official
  33  * policies, either expressed or implied, of the FreeBSD Project.
  34  *
  35  * $FreeBSD$
  36  */
  37
  38 #ifndef _SYS_EFSYS_H
  39 #define _SYS_EFSYS_H
  40
  41 #ifdef  __cplusplus
  42 extern "C" {
  43 #endif
  44
  45 #include <sys/param.h>
  46 #include <sys/bus.h>
  47 #include <sys/endian.h>
  48 #include <sys/lock.h>
  49 #include <sys/malloc.h>
  50 #include <sys/mbuf.h>
  51 #include <sys/mutex.h>
  52 #include <sys/rwlock.h>
  53 #include <sys/sdt.h>
  54 #include <sys/systm.h>
  55
  56 #include <machine/bus.h>
  57 #include <machine/endian.h>
  58
  59 #define EFSYS_HAS_UINT64 1
  60 #if defined(__x86_64__)
  61 #define EFSYS_USE_UINT64 1
  62 #else
  63 #define EFSYS_USE_UINT64 0
  64 #endif
  65 #define EFSYS_HAS_SSE2_M128 0
  66 #if _BYTE_ORDER == _BIG_ENDIAN
  67 #define EFSYS_IS_BIG_ENDIAN 1
  68 #define EFSYS_IS_LITTLE_ENDIAN 0
  69 #elif _BYTE_ORDER == _LITTLE_ENDIAN
  70 #define EFSYS_IS_BIG_ENDIAN 0
  71 #define EFSYS_IS_LITTLE_ENDIAN 1
  72 #endif
  73 #include "efx_types.h"
  74
  75 /* Common code requires this */
  76 #if __FreeBSD_version < 800068
  77 #define memmove(d, s, l) bcopy(s, d, l)
  78 #endif
  79
  80 /* FreeBSD equivalents of Solaris things */
  81 #ifndef _NOTE
  82 #define _NOTE(s)
  83 #endif
  84
  85 #ifndef B_FALSE
  86 #define B_FALSE FALSE
  87 #endif
  88 #ifndef B_TRUE
  89 #define B_TRUE  TRUE
  90 #endif
  91
  92 #ifndef IS_P2ALIGNED
  93 #define IS_P2ALIGNED(v, a)      ((((uintptr_t)(v)) & ((uintptr_t)(a) - 1)) == 0)
  94 #endif
  95
  96 #ifndef P2ROUNDUP
  97 #define P2ROUNDUP(x, align)     (-(-(x) & -(align)))
  98 #endif
  99
 100 #ifndef P2ALIGN
 101 #define P2ALIGN(_x, _a)         ((_x) & -(_a))
 102 #endif
 103
 104 #ifndef IS2P
 105 #define ISP2(x)                 (((x) & ((x) - 1)) == 0)
 106 #endif
 107
 108 #if defined(__x86_64__) && __FreeBSD_version >= 1000000
 109
 110 #define SFXGE_USE_BUS_SPACE_8           1
 111
 112 #if !defined(bus_space_read_stream_8)
 113
 114 #define bus_space_read_stream_8(t, h, o)                                \
 115         bus_space_read_8((t), (h), (o))
 116
 117 #define bus_space_write_stream_8(t, h, o, v)                            \
 118         bus_space_write_8((t), (h), (o), (v))
 119
 120 #endif
 121
 122 #endif
 123
 124 #define ENOTACTIVE EINVAL
 125
 126 /* Memory type to use on FreeBSD */
 127 MALLOC_DECLARE(M_SFXGE);
 128
 129 /* Machine dependend prefetch wrappers */
 130 #if defined(__i386__) || defined(__amd64__)
 131 static __inline void
 132 prefetch_read_many(void *addr)
 133 {
 134
 135         __asm__(
 136             "prefetcht0 (%0)"
 137             :
 138             : "r" (addr));
 139 }
 140
 141 static __inline void
 142 prefetch_read_once(void *addr)
 143 {
 144
 145         __asm__(
 146             "prefetchnta (%0)"
 147             :
 148             : "r" (addr));
 149 }
 150 #elif defined(__sparc64__)
 151 static __inline void
 152 prefetch_read_many(void *addr)
 153 {
 154
 155         __asm__(
 156             "prefetch [%0], 0"
 157             :
 158             : "r" (addr));
 159 }
 160
 161 static __inline void
 162 prefetch_read_once(void *addr)
 163 {
 164
 165         __asm__(
 166             "prefetch [%0], 1"
 167             :
 168             : "r" (addr));
 169 }
 170 #else
 171 static __inline void
 172 prefetch_read_many(void *addr)
 173 {
 174
 175 }
 176
 177 static __inline void
 178 prefetch_read_once(void *addr)
 179 {
 180
 181 }
 182 #endif
 183
 184 #if defined(__i386__) || defined(__amd64__)
 185 #include <vm/vm.h>
 186 #include <vm/pmap.h>
 187 #endif
 188 static __inline void
 189 sfxge_map_mbuf_fast(bus_dma_tag_t tag, bus_dmamap_t map,
 190                     struct mbuf *m, bus_dma_segment_t *seg)
 191 {
 192 #if defined(__i386__) || defined(__amd64__)
 193         seg->ds_addr = pmap_kextract(mtod(m, vm_offset_t));
 194         seg->ds_len = m->m_len;
 195 #else
 196         int nsegstmp;
 197
 198         bus_dmamap_load_mbuf_sg(tag, map, m, seg, &nsegstmp, 0);
 199 #endif
 200 }
 201
 202 /* Modifiers used for Windows builds */
 203 #define __in
 204 #define __in_opt
 205 #define __in_ecount(_n)
 206 #define __in_ecount_opt(_n)
 207 #define __in_bcount(_n)
 208 #define __in_bcount_opt(_n)
 209
 210 #define __out
 211 #define __out_opt
 212 #define __out_ecount(_n)
 213 #define __out_ecount_opt(_n)
 214 #define __out_bcount(_n)
 215 #define __out_bcount_opt(_n)
 216 #define __out_bcount_part(_n, _l)
 217 #define __out_bcount_part_opt(_n, _l)
 218
 219 #define __deref_out
 220
 221 #define __inout
 222 #define __inout_opt
 223 #define __inout_ecount(_n)
 224 #define __inout_ecount_opt(_n)
 225 #define __inout_bcount(_n)
 226 #define __inout_bcount_opt(_n)
 227 #define __inout_bcount_full_opt(_n)
 228
 229 #define __deref_out_bcount_opt(n)
 230
 231 #define __checkReturn
 232 #define __success(_x)
 233
 234 #define __drv_when(_p, _c)
 235
 236 /* Code inclusion options */
 237
 238
 239 #define EFSYS_OPT_NAMES 1
 240
 241 #define EFSYS_OPT_SIENA 1
 242 #define EFSYS_OPT_HUNTINGTON 1
 243 #define EFSYS_OPT_MEDFORD 1
 244 #ifdef DEBUG
 245 #define EFSYS_OPT_CHECK_REG 1
 246 #else
 247 #define EFSYS_OPT_CHECK_REG 0
 248 #endif
 249
 250 #define EFSYS_OPT_MCDI 1
 251 #define EFSYS_OPT_MCDI_LOGGING 0
 252 #define EFSYS_OPT_MCDI_PROXY_AUTH 0
 253
 254 #define EFSYS_OPT_MAC_STATS 1
 255
 256 #define EFSYS_OPT_LOOPBACK 0
 257
 258 #define EFSYS_OPT_MON_MCDI 0
 259 #define EFSYS_OPT_MON_STATS 0
 260
 261 #define EFSYS_OPT_PHY_STATS 1
 262 #define EFSYS_OPT_BIST 1
 263 #define EFSYS_OPT_PHY_LED_CONTROL 1
 264 #define EFSYS_OPT_PHY_FLAGS 0
 265
 266 #define EFSYS_OPT_VPD 1
 267 #define EFSYS_OPT_NVRAM 1
 268 #define EFSYS_OPT_BOOTCFG 0
 269
 270 #define EFSYS_OPT_DIAG 0
 271 #define EFSYS_OPT_RX_SCALE 1
 272 #define EFSYS_OPT_QSTATS 1
 273 #define EFSYS_OPT_FILTER 1
 274 #define EFSYS_OPT_RX_SCATTER 0
 275
 276 #define EFSYS_OPT_EV_PREFETCH 0
 277
 278 #define EFSYS_OPT_DECODE_INTR_FATAL 1
 279
 280 #define EFSYS_OPT_LICENSING 0
 281
 282 #define EFSYS_OPT_ALLOW_UNCONFIGURED_NIC 0
 283
 284 /* ID */
 285
 286 typedef struct __efsys_identifier_s     efsys_identifier_t;
 287
 288 /* PROBE */
 289
 290 #ifndef DTRACE_PROBE
 291
 292 #define EFSYS_PROBE(_name)
 293
 294 #define EFSYS_PROBE1(_name, _type1, _arg1)
 295
 296 #define EFSYS_PROBE2(_name, _type1, _arg1, _type2, _arg2)
 297
 298 #define EFSYS_PROBE3(_name, _type1, _arg1, _type2, _arg2,               \
 299             _type3, _arg3)
 300
 301 #define EFSYS_PROBE4(_name, _type1, _arg1, _type2, _arg2,               \
 302             _type3, _arg3, _type4, _arg4)
 303
 304 #define EFSYS_PROBE5(_name, _type1, _arg1, _type2, _arg2,               \
 305             _type3, _arg3, _type4, _arg4, _type5, _arg5)
 306
 307 #define EFSYS_PROBE6(_name, _type1, _arg1, _type2, _arg2,               \
 308             _type3, _arg3, _type4, _arg4, _type5, _arg5,                \
 309             _type6, _arg6)
 310
 311 #define EFSYS_PROBE7(_name, _type1, _arg1, _type2, _arg2,               \
 312             _type3, _arg3, _type4, _arg4, _type5, _arg5,                \
 313             _type6, _arg6, _type7, _arg7)
 314
 315 #else /* DTRACE_PROBE */
 316
 317 #define EFSYS_PROBE(_name)                                              \
 318         DTRACE_PROBE(_name)
 319
 320 #define EFSYS_PROBE1(_name, _type1, _arg1)                              \
 321         DTRACE_PROBE1(_name, _type1, _arg1)
 322
 323 #define EFSYS_PROBE2(_name, _type1, _arg1, _type2, _arg2)               \
 324         DTRACE_PROBE2(_name, _type1, _arg1, _type2, _arg2)
 325
 326 #define EFSYS_PROBE3(_name, _type1, _arg1, _type2, _arg2,               \
 327             _type3, _arg3)                                              \
 328         DTRACE_PROBE3(_name, _type1, _arg1, _type2, _arg2,              \
 329             _type3, _arg3)
 330
 331 #define EFSYS_PROBE4(_name, _type1, _arg1, _type2, _arg2,               \
 332             _type3, _arg3, _type4, _arg4)                               \
 333         DTRACE_PROBE4(_name, _type1, _arg1, _type2, _arg2,              \
 334             _type3, _arg3, _type4, _arg4)
 335
 336 #ifdef DTRACE_PROBE5
 337 #define EFSYS_PROBE5(_name, _type1, _arg1, _type2, _arg2,               \
 338             _type3, _arg3, _type4, _arg4, _type5, _arg5)                \
 339         DTRACE_PROBE5(_name, _type1, _arg1, _type2, _arg2,              \
 340             _type3, _arg3, _type4, _arg4, _type5, _arg5)
 341 #else
 342 #define EFSYS_PROBE5(_name, _type1, _arg1, _type2, _arg2,               \
 343             _type3, _arg3, _type4, _arg4, _type5, _arg5)                \
 344         DTRACE_PROBE4(_name, _type1, _arg1, _type2, _arg2,              \
 345             _type3, _arg3, _type4, _arg4)
 346 #endif
 347
 348 #ifdef DTRACE_PROBE6
 349 #define EFSYS_PROBE6(_name, _type1, _arg1, _type2, _arg2,               \
 350             _type3, _arg3, _type4, _arg4, _type5, _arg5,                \
 351             _type6, _arg6)                                              \
 352         DTRACE_PROBE6(_name, _type1, _arg1, _type2, _arg2,              \
 353             _type3, _arg3, _type4, _arg4, _type5, _arg5,                \
 354             _type6, _arg6)
 355 #else
 356 #define EFSYS_PROBE6(_name, _type1, _arg1, _type2, _arg2,               \
 357             _type3, _arg3, _type4, _arg4, _type5, _arg5,                \
 358             _type6, _arg6)                                              \
 359         EFSYS_PROBE5(_name, _type1, _arg1, _type2, _arg2,               \
 360             _type3, _arg3, _type4, _arg4, _type5, _arg5)
 361 #endif
 362
 363 #ifdef DTRACE_PROBE7
 364 #define EFSYS_PROBE7(_name, _type1, _arg1, _type2, _arg2,               \
 365             _type3, _arg3, _type4, _arg4, _type5, _arg5,                \
 366             _type6, _arg6, _type7, _arg7)                               \
 367         DTRACE_PROBE7(_name, _type1, _arg1, _type2, _arg2,              \
 368             _type3, _arg3, _type4, _arg4, _type5, _arg5,                \
 369             _type6, _arg6, _type7, _arg7)
 370 #else
 371 #define EFSYS_PROBE7(_name, _type1, _arg1, _type2, _arg2,               \
 372             _type3, _arg3, _type4, _arg4, _type5, _arg5,                \
 373             _type6, _arg6, _type7, _arg7)                               \
 374         EFSYS_PROBE6(_name, _type1, _arg1, _type2, _arg2,               \
 375             _type3, _arg3, _type4, _arg4, _type5, _arg5,                \
 376             _type6, _arg6)
 377 #endif
 378
 379 #endif /* DTRACE_PROBE */
 380
 381 /* DMA */
 382
 383 typedef uint64_t                efsys_dma_addr_t;
 384
 385 typedef struct efsys_mem_s {
 386         bus_dma_tag_t           esm_tag;
 387         bus_dmamap_t            esm_map;
 388         caddr_t                 esm_base;
 389         efsys_dma_addr_t        esm_addr;
 390 } efsys_mem_t;
 391
 392
 393 #define EFSYS_MEM_ZERO(_esmp, _size)                                    \
 394         do {                                                            \
 395                 (void) memset((_esmp)->esm_base, 0, (_size));           \
 396                                                                         \
 397         _NOTE(CONSTANTCONDITION)                                        \
 398         } while (B_FALSE)
 399
 400 #define EFSYS_MEM_READD(_esmp, _offset, _edp)                           \
 401         do {                                                            \
 402                 uint32_t *addr;                                         \
 403                                                                         \
 404                 _NOTE(CONSTANTCONDITION)                                \
 405                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_dword_t)),    \
 406                     ("not power of 2 aligned"));                        \
 407                                                                         \
 408                 addr = (void *)((_esmp)->esm_base + (_offset));         \
 409                                                                         \
 410                 (_edp)->ed_u32[0] = *addr;                              \
 411                                                                         \
 412                 EFSYS_PROBE2(mem_readd, unsigned int, (_offset),        \
 413                     uint32_t, (_edp)->ed_u32[0]);                       \
 414                                                                         \
 415         _NOTE(CONSTANTCONDITION)                                        \
 416         } while (B_FALSE)
 417
 418 #if defined(__x86_64__)
 419 #define EFSYS_MEM_READQ(_esmp, _offset, _eqp)                           \
 420         do {                                                            \
 421                 uint64_t *addr;                                         \
 422                                                                         \
 423                 _NOTE(CONSTANTCONDITION)                                \
 424                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_qword_t)),    \
 425                     ("not power of 2 aligned"));                        \
 426                                                                         \
 427                 addr = (void *)((_esmp)->esm_base + (_offset));         \
 428                                                                         \
 429                 (_eqp)->eq_u64[0] = *addr;                              \
 430                                                                         \
 431                 EFSYS_PROBE3(mem_readq, unsigned int, (_offset),        \
 432                     uint32_t, (_eqp)->eq_u32[1],                        \
 433                     uint32_t, (_eqp)->eq_u32[0]);                       \
 434                                                                         \
 435         _NOTE(CONSTANTCONDITION)                                        \
 436         } while (B_FALSE)
 437 #else
 438 #define EFSYS_MEM_READQ(_esmp, _offset, _eqp)                           \
 439         do {                                                            \
 440                 uint32_t *addr;                                         \
 441                                                                         \
 442                 _NOTE(CONSTANTCONDITION)                                \
 443                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_qword_t)),    \
 444                     ("not power of 2 aligned"));                        \
 445                                                                         \
 446                 addr = (void *)((_esmp)->esm_base + (_offset));         \
 447                                                                         \
 448                 (_eqp)->eq_u32[0] = *addr++;                            \
 449                 (_eqp)->eq_u32[1] = *addr;                              \
 450                                                                         \
 451                 EFSYS_PROBE3(mem_readq, unsigned int, (_offset),        \
 452                     uint32_t, (_eqp)->eq_u32[1],                        \
 453                     uint32_t, (_eqp)->eq_u32[0]);                       \
 454                                                                         \
 455         _NOTE(CONSTANTCONDITION)                                        \
 456         } while (B_FALSE)
 457 #endif
 458
 459 #if defined(__x86_64__)
 460 #define EFSYS_MEM_READO(_esmp, _offset, _eop)                           \
 461         do {                                                            \
 462                 uint64_t *addr;                                         \
 463                                                                         \
 464                 _NOTE(CONSTANTCONDITION)                                \
 465                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_oword_t)),    \
 466                     ("not power of 2 aligned"));                        \
 467                                                                         \
 468                 addr = (void *)((_esmp)->esm_base + (_offset));         \
 469                                                                         \
 470                 (_eop)->eo_u64[0] = *addr++;                            \
 471                 (_eop)->eo_u64[1] = *addr;                              \
 472                                                                         \
 473                 EFSYS_PROBE5(mem_reado, unsigned int, (_offset),        \
 474                     uint32_t, (_eop)->eo_u32[3],                        \
 475                     uint32_t, (_eop)->eo_u32[2],                        \
 476                     uint32_t, (_eop)->eo_u32[1],                        \
 477                     uint32_t, (_eop)->eo_u32[0]);                       \
 478                                                                         \
 479         _NOTE(CONSTANTCONDITION)                                        \
 480         } while (B_FALSE)
 481 #else
 482 #define EFSYS_MEM_READO(_esmp, _offset, _eop)                           \
 483         do {                                                            \
 484                 uint32_t *addr;                                         \
 485                                                                         \
 486                 _NOTE(CONSTANTCONDITION)                                \
 487                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_oword_t)),    \
 488                     ("not power of 2 aligned"));                        \
 489                                                                         \
 490                 addr = (void *)((_esmp)->esm_base + (_offset));         \
 491                                                                         \
 492                 (_eop)->eo_u32[0] = *addr++;                            \
 493                 (_eop)->eo_u32[1] = *addr++;                            \
 494                 (_eop)->eo_u32[2] = *addr++;                            \
 495                 (_eop)->eo_u32[3] = *addr;                              \
 496                                                                         \
 497                 EFSYS_PROBE5(mem_reado, unsigned int, (_offset),        \
 498                     uint32_t, (_eop)->eo_u32[3],                        \
 499                     uint32_t, (_eop)->eo_u32[2],                        \
 500                     uint32_t, (_eop)->eo_u32[1],                        \
 501                     uint32_t, (_eop)->eo_u32[0]);                       \
 502                                                                         \
 503         _NOTE(CONSTANTCONDITION)                                        \
 504         } while (B_FALSE)
 505 #endif
 506
 507 #define EFSYS_MEM_WRITED(_esmp, _offset, _edp)                          \
 508         do {                                                            \
 509                 uint32_t *addr;                                         \
 510                                                                         \
 511                 _NOTE(CONSTANTCONDITION)                                \
 512                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_dword_t)),    \
 513                     ("not power of 2 aligned"));                        \
 514                                                                         \
 515                 EFSYS_PROBE2(mem_writed, unsigned int, (_offset),       \
 516                     uint32_t, (_edp)->ed_u32[0]);                       \
 517                                                                         \
 518                 addr = (void *)((_esmp)->esm_base + (_offset));         \
 519                                                                         \
 520                 *addr = (_edp)->ed_u32[0];                              \
 521                                                                         \
 522         _NOTE(CONSTANTCONDITION)                                        \
 523         } while (B_FALSE)
 524
 525 #if defined(__x86_64__)
 526 #define EFSYS_MEM_WRITEQ(_esmp, _offset, _eqp)                          \
 527         do {                                                            \
 528                 uint64_t *addr;                                         \
 529                                                                         \
 530                 _NOTE(CONSTANTCONDITION)                                \
 531                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_qword_t)),    \
 532                     ("not power of 2 aligned"));                        \
 533                                                                         \
 534                 EFSYS_PROBE3(mem_writeq, unsigned int, (_offset),       \
 535                     uint32_t, (_eqp)->eq_u32[1],                        \
 536                     uint32_t, (_eqp)->eq_u32[0]);                       \
 537                                                                         \
 538                 addr = (void *)((_esmp)->esm_base + (_offset));         \
 539                                                                         \
 540                 *addr   = (_eqp)->eq_u64[0];                            \
 541                                                                         \
 542         _NOTE(CONSTANTCONDITION)                                        \
 543         } while (B_FALSE)
 544
 545 #else
 546 #define EFSYS_MEM_WRITEQ(_esmp, _offset, _eqp)                          \
 547         do {                                                            \
 548                 uint32_t *addr;                                         \
 549                                                                         \
 550                 _NOTE(CONSTANTCONDITION)                                \
 551                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_qword_t)),    \
 552                     ("not power of 2 aligned"));                        \
 553                                                                         \
 554                 EFSYS_PROBE3(mem_writeq, unsigned int, (_offset),       \
 555                     uint32_t, (_eqp)->eq_u32[1],                        \
 556                     uint32_t, (_eqp)->eq_u32[0]);                       \
 557                                                                         \
 558                 addr = (void *)((_esmp)->esm_base + (_offset));         \
 559                                                                         \
 560                 *addr++ = (_eqp)->eq_u32[0];                            \
 561                 *addr   = (_eqp)->eq_u32[1];                            \
 562                                                                         \
 563         _NOTE(CONSTANTCONDITION)                                        \
 564         } while (B_FALSE)
 565 #endif
 566
 567 #if defined(__x86_64__)
 568 #define EFSYS_MEM_WRITEO(_esmp, _offset, _eop)                          \
 569         do {                                                            \
 570                 uint64_t *addr;                                         \
 571                                                                         \
 572                 _NOTE(CONSTANTCONDITION)                                \
 573                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_oword_t)),    \
 574                     ("not power of 2 aligned"));                        \
 575                                                                         \
 576                 EFSYS_PROBE5(mem_writeo, unsigned int, (_offset),       \
 577                     uint32_t, (_eop)->eo_u32[3],                        \
 578                     uint32_t, (_eop)->eo_u32[2],                        \
 579                     uint32_t, (_eop)->eo_u32[1],                        \
 580                     uint32_t, (_eop)->eo_u32[0]);                       \
 581                                                                         \
 582                 addr = (void *)((_esmp)->esm_base + (_offset));         \
 583                                                                         \
 584                 *addr++ = (_eop)->eo_u64[0];                            \
 585                 *addr   = (_eop)->eo_u64[1];                            \
 586                                                                         \
 587         _NOTE(CONSTANTCONDITION)                                        \
 588         } while (B_FALSE)
 589 #else
 590 #define EFSYS_MEM_WRITEO(_esmp, _offset, _eop)                          \
 591         do {                                                            \
 592                 uint32_t *addr;                                         \
 593                                                                         \
 594                 _NOTE(CONSTANTCONDITION)                                \
 595                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_oword_t)),    \
 596                     ("not power of 2 aligned"));                        \
 597                                                                         \
 598                 EFSYS_PROBE5(mem_writeo, unsigned int, (_offset),       \
 599                     uint32_t, (_eop)->eo_u32[3],                        \
 600                     uint32_t, (_eop)->eo_u32[2],                        \
 601                     uint32_t, (_eop)->eo_u32[1],                        \
 602                     uint32_t, (_eop)->eo_u32[0]);                       \
 603                                                                         \
 604                 addr = (void *)((_esmp)->esm_base + (_offset));         \
 605                                                                         \
 606                 *addr++ = (_eop)->eo_u32[0];                            \
 607                 *addr++ = (_eop)->eo_u32[1];                            \
 608                 *addr++ = (_eop)->eo_u32[2];                            \
 609                 *addr   = (_eop)->eo_u32[3];                            \
 610                                                                         \
 611         _NOTE(CONSTANTCONDITION)                                        \
 612         } while (B_FALSE)
 613 #endif
 614
 615 #define EFSYS_MEM_ADDR(_esmp)                                           \
 616         ((_esmp)->esm_addr)
 617
 618 #define EFSYS_MEM_IS_NULL(_esmp)                                        \
 619         ((_esmp)->esm_base == NULL)
 620
 621 /* BAR */
 622
 623 #define SFXGE_LOCK_NAME_MAX     16
 624
 625 typedef struct efsys_bar_s {
 626         struct mtx              esb_lock;
 627         char                    esb_lock_name[SFXGE_LOCK_NAME_MAX];
 628         bus_space_tag_t         esb_tag;
 629         bus_space_handle_t      esb_handle;
 630         int                     esb_rid;
 631         struct resource         *esb_res;
 632 } efsys_bar_t;
 633
 634 #define SFXGE_BAR_LOCK_INIT(_esbp, _ifname)                             \
 635         do {                                                            \
 636                 snprintf((_esbp)->esb_lock_name,                        \
 637                          sizeof((_esbp)->esb_lock_name),                \
 638                          "%s:bar", (_ifname));                          \
 639                 mtx_init(&(_esbp)->esb_lock, (_esbp)->esb_lock_name,    \
 640                          NULL, MTX_DEF);                                \
 641         _NOTE(CONSTANTCONDITION)                                        \
 642         } while (B_FALSE)
 643 #define SFXGE_BAR_LOCK_DESTROY(_esbp)                                   \
 644         mtx_destroy(&(_esbp)->esb_lock)
 645 #define SFXGE_BAR_LOCK(_esbp)                                           \
 646         mtx_lock(&(_esbp)->esb_lock)
 647 #define SFXGE_BAR_UNLOCK(_esbp)                                         \
 648         mtx_unlock(&(_esbp)->esb_lock)
 649
 650 #define EFSYS_BAR_READD(_esbp, _offset, _edp, _lock)                    \
 651         do {                                                            \
 652                 _NOTE(CONSTANTCONDITION)                                \
 653                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_dword_t)),    \
 654                     ("not power of 2 aligned"));                        \
 655                                                                         \
 656                 _NOTE(CONSTANTCONDITION)                                \
 657                 if (_lock)                                              \
 658                         SFXGE_BAR_LOCK(_esbp);                          \
 659                                                                         \
 660                 (_edp)->ed_u32[0] = bus_space_read_stream_4(            \
 661                     (_esbp)->esb_tag, (_esbp)->esb_handle,              \
 662                     (_offset));                                         \
 663                                                                         \
 664                 EFSYS_PROBE2(bar_readd, unsigned int, (_offset),        \
 665                     uint32_t, (_edp)->ed_u32[0]);                       \
 666                                                                         \
 667                 _NOTE(CONSTANTCONDITION)                                \
 668                 if (_lock)                                              \
 669                         SFXGE_BAR_UNLOCK(_esbp);                        \
 670         _NOTE(CONSTANTCONDITION)                                        \
 671         } while (B_FALSE)
 672
 673 #if defined(SFXGE_USE_BUS_SPACE_8)
 674 #define EFSYS_BAR_READQ(_esbp, _offset, _eqp)                           \
 675         do {                                                            \
 676                 _NOTE(CONSTANTCONDITION)                                \
 677                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_qword_t)),    \
 678                     ("not power of 2 aligned"));                        \
 679                                                                         \
 680                 SFXGE_BAR_LOCK(_esbp);                                  \
 681                                                                         \
 682                 (_eqp)->eq_u64[0] = bus_space_read_stream_8(            \
 683                     (_esbp)->esb_tag, (_esbp)->esb_handle,              \
 684                     (_offset));                                         \
 685                                                                         \
 686                 EFSYS_PROBE3(bar_readq, unsigned int, (_offset),        \
 687                     uint32_t, (_eqp)->eq_u32[1],                        \
 688                     uint32_t, (_eqp)->eq_u32[0]);                       \
 689                                                                         \
 690                 SFXGE_BAR_UNLOCK(_esbp);                                \
 691         _NOTE(CONSTANTCONDITION)                                        \
 692         } while (B_FALSE)
 693
 694 #define EFSYS_BAR_READO(_esbp, _offset, _eop, _lock)                    \
 695         do {                                                            \
 696                 _NOTE(CONSTANTCONDITION)                                \
 697                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_oword_t)),    \
 698                     ("not power of 2 aligned"));                        \
 699                                                                         \
 700                 _NOTE(CONSTANTCONDITION)                                \
 701                 if (_lock)                                              \
 702                         SFXGE_BAR_LOCK(_esbp);                          \
 703                                                                         \
 704                 (_eop)->eo_u64[0] = bus_space_read_stream_8(            \
 705                     (_esbp)->esb_tag, (_esbp)->esb_handle,              \
 706                     (_offset));                                         \
 707                 (_eop)->eo_u64[1] = bus_space_read_stream_8(            \
 708                     (_esbp)->esb_tag, (_esbp)->esb_handle,              \
 709                     (_offset) + 8);                                     \
 710                                                                         \
 711                 EFSYS_PROBE5(bar_reado, unsigned int, (_offset),        \
 712                     uint32_t, (_eop)->eo_u32[3],                        \
 713                     uint32_t, (_eop)->eo_u32[2],                        \
 714                     uint32_t, (_eop)->eo_u32[1],                        \
 715                     uint32_t, (_eop)->eo_u32[0]);                       \
 716                                                                         \
 717                 _NOTE(CONSTANTCONDITION)                                \
 718                 if (_lock)                                              \
 719                         SFXGE_BAR_UNLOCK(_esbp);                        \
 720         _NOTE(CONSTANTCONDITION)                                        \
 721         } while (B_FALSE)
 722
 723 #else
 724 #define EFSYS_BAR_READQ(_esbp, _offset, _eqp)                           \
 725         do {                                                            \
 726                 _NOTE(CONSTANTCONDITION)                                \
 727                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_qword_t)),    \
 728                     ("not power of 2 aligned"));                        \
 729                                                                         \
 730                 SFXGE_BAR_LOCK(_esbp);                                  \
 731                                                                         \
 732                 (_eqp)->eq_u32[0] = bus_space_read_stream_4(            \
 733                     (_esbp)->esb_tag, (_esbp)->esb_handle,              \
 734                     (_offset));                                         \
 735                 (_eqp)->eq_u32[1] = bus_space_read_stream_4(            \
 736                     (_esbp)->esb_tag, (_esbp)->esb_handle,              \
 737                     (_offset) + 4);                                     \
 738                                                                         \
 739                 EFSYS_PROBE3(bar_readq, unsigned int, (_offset),        \
 740                     uint32_t, (_eqp)->eq_u32[1],                        \
 741                     uint32_t, (_eqp)->eq_u32[0]);                       \
 742                                                                         \
 743                 SFXGE_BAR_UNLOCK(_esbp);                                \
 744         _NOTE(CONSTANTCONDITION)                                        \
 745         } while (B_FALSE)
 746
 747 #define EFSYS_BAR_READO(_esbp, _offset, _eop, _lock)                    \
 748         do {                                                            \
 749                 _NOTE(CONSTANTCONDITION)                                \
 750                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_oword_t)),    \
 751                     ("not power of 2 aligned"));                        \
 752                                                                         \
 753                 _NOTE(CONSTANTCONDITION)                                \
 754                 if (_lock)                                              \
 755                         SFXGE_BAR_LOCK(_esbp);                          \
 756                                                                         \
 757                 (_eop)->eo_u32[0] = bus_space_read_stream_4(            \
 758                     (_esbp)->esb_tag, (_esbp)->esb_handle,              \
 759                     (_offset));                                         \
 760                 (_eop)->eo_u32[1] = bus_space_read_stream_4(            \
 761                     (_esbp)->esb_tag, (_esbp)->esb_handle,              \
 762                     (_offset) + 4);                                     \
 763                 (_eop)->eo_u32[2] = bus_space_read_stream_4(            \
 764                     (_esbp)->esb_tag, (_esbp)->esb_handle,              \
 765                     (_offset) + 8);                                     \
 766                 (_eop)->eo_u32[3] = bus_space_read_stream_4(            \
 767                     (_esbp)->esb_tag, (_esbp)->esb_handle,              \
 768                     (_offset) + 12);                                    \
 769                                                                         \
 770                 EFSYS_PROBE5(bar_reado, unsigned int, (_offset),        \
 771                     uint32_t, (_eop)->eo_u32[3],                        \
 772                     uint32_t, (_eop)->eo_u32[2],                        \
 773                     uint32_t, (_eop)->eo_u32[1],                        \
 774                     uint32_t, (_eop)->eo_u32[0]);                       \
 775                                                                         \
 776                 _NOTE(CONSTANTCONDITION)                                \
 777                 if (_lock)                                              \
 778                         SFXGE_BAR_UNLOCK(_esbp);                        \
 779         _NOTE(CONSTANTCONDITION)                                        \
 780         } while (B_FALSE)
 781 #endif
 782
 783 #define EFSYS_BAR_WRITED(_esbp, _offset, _edp, _lock)                   \
 784         do {                                                            \
 785                 _NOTE(CONSTANTCONDITION)                                \
 786                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_dword_t)),    \
 787                     ("not power of 2 aligned"));                        \
 788                                                                         \
 789                 _NOTE(CONSTANTCONDITION)                                \
 790                 if (_lock)                                              \
 791                         SFXGE_BAR_LOCK(_esbp);                          \
 792                                                                         \
 793                 EFSYS_PROBE2(bar_writed, unsigned int, (_offset),       \
 794                     uint32_t, (_edp)->ed_u32[0]);                       \
 795                                                                         \
 796                 /*                                                      \
 797                  * Make sure that previous writes to the dword have     \
 798                  * been done. It should be cheaper than barrier just    \
 799                  * after the write below.                               \
 800                  */                                                     \
 801                 bus_space_barrier((_esbp)->esb_tag, (_esbp)->esb_handle,\
 802                     (_offset), sizeof (efx_dword_t),                    \
 803                     BUS_SPACE_BARRIER_WRITE);                           \
 804                 bus_space_write_stream_4((_esbp)->esb_tag,              \
 805                     (_esbp)->esb_handle,                                \
 806                     (_offset), (_edp)->ed_u32[0]);                      \
 807                                                                         \
 808                 _NOTE(CONSTANTCONDITION)                                \
 809                 if (_lock)                                              \
 810                         SFXGE_BAR_UNLOCK(_esbp);                        \
 811         _NOTE(CONSTANTCONDITION)                                        \
 812         } while (B_FALSE)
 813
 814 #if defined(SFXGE_USE_BUS_SPACE_8)
 815 #define EFSYS_BAR_WRITEQ(_esbp, _offset, _eqp)                          \
 816         do {                                                            \
 817                 _NOTE(CONSTANTCONDITION)                                \
 818                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_qword_t)),    \
 819                     ("not power of 2 aligned"));                        \
 820                                                                         \
 821                 SFXGE_BAR_LOCK(_esbp);                                  \
 822                                                                         \
 823                 EFSYS_PROBE3(bar_writeq, unsigned int, (_offset),       \
 824                     uint32_t, (_eqp)->eq_u32[1],                        \
 825                     uint32_t, (_eqp)->eq_u32[0]);                       \
 826                                                                         \
 827                 /*                                                      \
 828                  * Make sure that previous writes to the qword have     \
 829                  * been done. It should be cheaper than barrier just    \
 830                  * after the write below.                               \
 831                  */                                                     \
 832                 bus_space_barrier((_esbp)->esb_tag, (_esbp)->esb_handle,\
 833                     (_offset), sizeof (efx_qword_t),                    \
 834                     BUS_SPACE_BARRIER_WRITE);                           \
 835                 bus_space_write_stream_8((_esbp)->esb_tag,              \
 836                     (_esbp)->esb_handle,                                \
 837                     (_offset), (_eqp)->eq_u64[0]);                      \
 838                                                                         \
 839                 SFXGE_BAR_UNLOCK(_esbp);                                \
 840         _NOTE(CONSTANTCONDITION)                                        \
 841         } while (B_FALSE)
 842 #else
 843 #define EFSYS_BAR_WRITEQ(_esbp, _offset, _eqp)                          \
 844         do {                                                            \
 845                 _NOTE(CONSTANTCONDITION)                                \
 846                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_qword_t)),    \
 847                     ("not power of 2 aligned"));                        \
 848                                                                         \
 849                 SFXGE_BAR_LOCK(_esbp);                                  \
 850                                                                         \
 851                 EFSYS_PROBE3(bar_writeq, unsigned int, (_offset),       \
 852                     uint32_t, (_eqp)->eq_u32[1],                        \
 853                     uint32_t, (_eqp)->eq_u32[0]);                       \
 854                                                                         \
 855                 /*                                                      \
 856                  * Make sure that previous writes to the qword have     \
 857                  * been done. It should be cheaper than barrier just    \
 858                  * after the last write below.                          \
 859                  */                                                     \
 860                 bus_space_barrier((_esbp)->esb_tag, (_esbp)->esb_handle,\
 861                     (_offset), sizeof (efx_qword_t),                    \
 862                     BUS_SPACE_BARRIER_WRITE);                           \
 863                 bus_space_write_stream_4((_esbp)->esb_tag,              \
 864                     (_esbp)->esb_handle,                                \
 865                     (_offset), (_eqp)->eq_u32[0]);                      \
 866                 /*                                                      \
 867                  * It should be guaranteed that the last dword comes    \
 868                  * the last, so barrier entire qword to be sure that    \
 869                  * neither above nor below writes are reordered.        \
 870                  */                                                     \
 871                 bus_space_barrier((_esbp)->esb_tag, (_esbp)->esb_handle,\
 872                     (_offset), sizeof (efx_qword_t),                    \
 873                     BUS_SPACE_BARRIER_WRITE);                           \
 874                 bus_space_write_stream_4((_esbp)->esb_tag,              \
 875                     (_esbp)->esb_handle,                                \
 876                     (_offset) + 4, (_eqp)->eq_u32[1]);                  \
 877                                                                         \
 878                 SFXGE_BAR_UNLOCK(_esbp);                                \
 879         _NOTE(CONSTANTCONDITION)                                        \
 880         } while (B_FALSE)
 881 #endif
 882
 883 /*
 884  * Guarantees 64bit aligned 64bit writes to write combined BAR mapping
 885  * (required by PIO hardware)
 886  */
 887 #define EFSYS_BAR_WC_WRITEQ(_esbp, _offset, _eqp)                       \
 888         do {                                                            \
 889                 _NOTE(CONSTANTCONDITION)                                \
 890                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_qword_t)),    \
 891                     ("not power of 2 aligned"));                        \
 892                                                                         \
 893                 (void) (_esbp);                                         \
 894                                                                         \
 895                 /* FIXME: Perform a 64-bit write */                     \
 896                 KASSERT(0, ("not implemented"));                        \
 897                                                                         \
 898         _NOTE(CONSTANTCONDITION)                                        \
 899         } while (B_FALSE)
 900
 901 #if defined(SFXGE_USE_BUS_SPACE_8)
 902 #define EFSYS_BAR_WRITEO(_esbp, _offset, _eop, _lock)                   \
 903         do {                                                            \
 904                 _NOTE(CONSTANTCONDITION)                                \
 905                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_oword_t)),    \
 906                     ("not power of 2 aligned"));                        \
 907                                                                         \
 908                 _NOTE(CONSTANTCONDITION)                                \
 909                 if (_lock)                                              \
 910                         SFXGE_BAR_LOCK(_esbp);                          \
 911                                                                         \
 912                 EFSYS_PROBE5(bar_writeo, unsigned int, (_offset),       \
 913                     uint32_t, (_eop)->eo_u32[3],                        \
 914                     uint32_t, (_eop)->eo_u32[2],                        \
 915                     uint32_t, (_eop)->eo_u32[1],                        \
 916                     uint32_t, (_eop)->eo_u32[0]);                       \
 917                                                                         \
 918                 /*                                                      \
 919                  * Make sure that previous writes to the oword have     \
 920                  * been done. It should be cheaper than barrier just    \
 921                  * after the last write below.                          \
 922                  */                                                     \
 923                 bus_space_barrier((_esbp)->esb_tag, (_esbp)->esb_handle,\
 924                     (_offset), sizeof (efx_oword_t),                    \
 925                     BUS_SPACE_BARRIER_WRITE);                           \
 926                 bus_space_write_stream_8((_esbp)->esb_tag,              \
 927                     (_esbp)->esb_handle,                                \
 928                     (_offset), (_eop)->eo_u64[0]);                      \
 929                 /*                                                      \
 930                  * It should be guaranteed that the last qword comes    \
 931                  * the last, so barrier entire oword to be sure that    \
 932                  * neither above nor below writes are reordered.        \
 933                  */                                                     \
 934                 bus_space_barrier((_esbp)->esb_tag, (_esbp)->esb_handle,\
 935                     (_offset), sizeof (efx_oword_t),                    \
 936                     BUS_SPACE_BARRIER_WRITE);                           \
 937                 bus_space_write_stream_8((_esbp)->esb_tag,              \
 938                     (_esbp)->esb_handle,                                \
 939                     (_offset) + 8, (_eop)->eo_u64[1]);                  \
 940                                                                         \
 941                 _NOTE(CONSTANTCONDITION)                                \
 942                 if (_lock)                                              \
 943                         SFXGE_BAR_UNLOCK(_esbp);                        \
 944         _NOTE(CONSTANTCONDITION)                                        \
 945         } while (B_FALSE)
 946
 947 #else
 948 #define EFSYS_BAR_WRITEO(_esbp, _offset, _eop, _lock)                   \
 949         do {                                                            \
 950                 _NOTE(CONSTANTCONDITION)                                \
 951                 KASSERT(IS_P2ALIGNED(_offset, sizeof (efx_oword_t)),    \
 952                     ("not power of 2 aligned"));                        \
 953                                                                         \
 954                 _NOTE(CONSTANTCONDITION)                                \
 955                 if (_lock)                                              \
 956                         SFXGE_BAR_LOCK(_esbp);                          \
 957                                                                         \
 958                 EFSYS_PROBE5(bar_writeo, unsigned int, (_offset),       \
 959                     uint32_t, (_eop)->eo_u32[3],                        \
 960                     uint32_t, (_eop)->eo_u32[2],                        \
 961                     uint32_t, (_eop)->eo_u32[1],                        \
 962                     uint32_t, (_eop)->eo_u32[0]);                       \
 963                                                                         \
 964                 /*                                                      \
 965                  * Make sure that previous writes to the oword have     \
 966                  * been done. It should be cheaper than barrier just    \
 967                  * after the last write below.                          \
 968                  */                                                     \
 969                 bus_space_barrier((_esbp)->esb_tag, (_esbp)->esb_handle,\
 970                     (_offset), sizeof (efx_oword_t),                    \
 971                     BUS_SPACE_BARRIER_WRITE);                           \
 972                 bus_space_write_stream_4((_esbp)->esb_tag,              \
 973                     (_esbp)->esb_handle,                                \
 974                     (_offset), (_eop)->eo_u32[0]);                      \
 975                 bus_space_write_stream_4((_esbp)->esb_tag,              \
 976                     (_esbp)->esb_handle,                                \
 977                     (_offset) + 4, (_eop)->eo_u32[1]);                  \
 978                 bus_space_write_stream_4((_esbp)->esb_tag,              \
 979                     (_esbp)->esb_handle,                                \
 980                     (_offset) + 8, (_eop)->eo_u32[2]);                  \
 981                 /*                                                      \
 982                  * It should be guaranteed that the last dword comes    \
 983                  * the last, so barrier entire oword to be sure that    \
 984                  * neither above nor below writes are reordered.        \
 985                  */                                                     \
 986                 bus_space_barrier((_esbp)->esb_tag, (_esbp)->esb_handle,\
 987                     (_offset), sizeof (efx_oword_t),                    \
 988                     BUS_SPACE_BARRIER_WRITE);                           \
 989                 bus_space_write_stream_4((_esbp)->esb_tag,              \
 990                     (_esbp)->esb_handle,                                \
 991                     (_offset) + 12, (_eop)->eo_u32[3]);                 \
 992                                                                         \
 993                 _NOTE(CONSTANTCONDITION)                                \
 994                 if (_lock)                                              \
 995                         SFXGE_BAR_UNLOCK(_esbp);                        \
 996         _NOTE(CONSTANTCONDITION)                                        \
 997         } while (B_FALSE)
 998 #endif
 999
1000 /* Use the standard octo-word write for doorbell writes */
1001 #define EFSYS_BAR_DOORBELL_WRITEO(_esbp, _offset, _eop)                 \
1002         do {                                                            \
1003                 EFSYS_BAR_WRITEO((_esbp), (_offset), (_eop), B_FALSE);  \
1004         _NOTE(CONSTANTCONDITION)                                        \
1005         } while (B_FALSE)
1006
1007 /* SPIN */
1008
1009 #define EFSYS_SPIN(_us)                                                 \
1010         do {                                                            \
1011                 DELAY(_us);                                             \
1012         _NOTE(CONSTANTCONDITION)                                        \
1013         } while (B_FALSE)
1014
1015 #define EFSYS_SLEEP     EFSYS_SPIN
1016
1017 /* BARRIERS */
1018
1019 #define EFSYS_MEM_READ_BARRIER()        rmb()
1020 #define EFSYS_PIO_WRITE_BARRIER()
1021
1022 /* DMA SYNC */
1023 #define EFSYS_DMA_SYNC_FOR_KERNEL(_esmp, _offset, _size)                \
1024         do {                                                            \
1025                 bus_dmamap_sync((_esmp)->esm_tag,                       \
1026                     (_esmp)->esm_map,                                   \
1027                     BUS_DMASYNC_POSTREAD);                              \
1028         _NOTE(CONSTANTCONDITION)                                        \
1029         } while (B_FALSE)
1030
1031 #define EFSYS_DMA_SYNC_FOR_DEVICE(_esmp, _offset, _size)                \
1032         do {                                                            \
1033                 bus_dmamap_sync((_esmp)->esm_tag,                       \
1034                     (_esmp)->esm_map,                                   \
1035                     BUS_DMASYNC_PREWRITE);                              \
1036         _NOTE(CONSTANTCONDITION)                                        \
1037         } while (B_FALSE)
1038
1039 /* TIMESTAMP */
1040
1041 typedef clock_t efsys_timestamp_t;
1042
1043 #define EFSYS_TIMESTAMP(_usp)                                           \
1044         do {                                                            \
1045                 clock_t now;                                            \
1046                                                                         \
1047                 now = ticks;                                            \
1048                 *(_usp) = now * hz / 1000000;                           \
1049         _NOTE(CONSTANTCONDITION)                                        \
1050         } while (B_FALSE)
1051
1052 /* KMEM */
1053
1054 #define EFSYS_KMEM_ALLOC(_esip, _size, _p)                              \
1055         do {                                                            \
1056                 (_esip) = (_esip);                                      \
1057                 /*                                                      \
1058                  * The macro is used in non-sleepable contexts, for     \
1059                  * example, holding a mutex.                            \
1060                  */                                                     \
1061                 (_p) = malloc((_size), M_SFXGE, M_NOWAIT|M_ZERO);       \
1062         _NOTE(CONSTANTCONDITION)                                        \
1063         } while (B_FALSE)
1064
1065 #define EFSYS_KMEM_FREE(_esip, _size, _p)                               \
1066         do {                                                            \
1067                 (void) (_esip);                                         \
1068                 (void) (_size);                                         \
1069                 free((_p), M_SFXGE);                                    \
1070         _NOTE(CONSTANTCONDITION)                                        \
1071         } while (B_FALSE)
1072
1073 /* LOCK */
1074
1075 typedef struct efsys_lock_s {
1076         struct mtx      lock;
1077         char            lock_name[SFXGE_LOCK_NAME_MAX];
1078 } efsys_lock_t;
1079
1080 #define SFXGE_EFSYS_LOCK_INIT(_eslp, _ifname, _label)                   \
1081         do {                                                            \
1082                 efsys_lock_t *__eslp = (_eslp);                         \
1083                                                                         \
1084                 snprintf((__eslp)->lock_name,                           \
1085                          sizeof((__eslp)->lock_name),                   \
1086                          "%s:%s", (_ifname), (_label));                 \
1087                 mtx_init(&(__eslp)->lock, (__eslp)->lock_name,          \
1088                          NULL, MTX_DEF);                                \
1089         } while (B_FALSE)
1090 #define SFXGE_EFSYS_LOCK_DESTROY(_eslp)                                 \
1091         mtx_destroy(&(_eslp)->lock)
1092 #define SFXGE_EFSYS_LOCK(_eslp)                                         \
1093         mtx_lock(&(_eslp)->lock)
1094 #define SFXGE_EFSYS_UNLOCK(_eslp)                                       \
1095         mtx_unlock(&(_eslp)->lock)
1096 #define SFXGE_EFSYS_LOCK_ASSERT_OWNED(_eslp)                            \
1097         mtx_assert(&(_eslp)->lock, MA_OWNED)
1098
1099 typedef int efsys_lock_state_t;
1100
1101 #define EFSYS_LOCK_MAGIC        0x000010c4
1102
1103 #define EFSYS_LOCK(_lockp, _state)                                      \
1104         do {                                                            \
1105                 SFXGE_EFSYS_LOCK(_lockp);                               \
1106                 (_state) = EFSYS_LOCK_MAGIC;                            \
1107         _NOTE(CONSTANTCONDITION)                                        \
1108         } while (B_FALSE)
1109
1110 #define EFSYS_UNLOCK(_lockp, _state)                                    \
1111         do {                                                            \
1112                 if ((_state) != EFSYS_LOCK_MAGIC)                       \
1113                         KASSERT(B_FALSE, ("not locked"));               \
1114                 SFXGE_EFSYS_UNLOCK(_lockp);                             \
1115         _NOTE(CONSTANTCONDITION)                                        \
1116         } while (B_FALSE)
1117
1118 /* STAT */
1119
1120 typedef uint64_t                efsys_stat_t;
1121
1122 #define EFSYS_STAT_INCR(_knp, _delta)                                   \
1123         do {                                                            \
1124                 *(_knp) += (_delta);                                    \
1125         _NOTE(CONSTANTCONDITION)                                        \
1126         } while (B_FALSE)
1127
1128 #define EFSYS_STAT_DECR(_knp, _delta)                                   \
1129         do {                                                            \
1130                 *(_knp) -= (_delta);                                    \
1131         _NOTE(CONSTANTCONDITION)                                        \
1132         } while (B_FALSE)
1133
1134 #define EFSYS_STAT_SET(_knp, _val)                                      \
1135         do {                                                            \
1136                 *(_knp) = (_val);                                       \
1137         _NOTE(CONSTANTCONDITION)                                        \
1138         } while (B_FALSE)
1139
1140 #define EFSYS_STAT_SET_QWORD(_knp, _valp)                               \
1141         do {                                                            \
1142                 *(_knp) = le64toh((_valp)->eq_u64[0]);                  \
1143         _NOTE(CONSTANTCONDITION)                                        \
1144         } while (B_FALSE)
1145
1146 #define EFSYS_STAT_SET_DWORD(_knp, _valp)                               \
1147         do {                                                            \
1148                 *(_knp) = le32toh((_valp)->ed_u32[0]);                  \
1149         _NOTE(CONSTANTCONDITION)                                        \
1150         } while (B_FALSE)
1151
1152 #define EFSYS_STAT_INCR_QWORD(_knp, _valp)                              \
1153         do {                                                            \
1154                 *(_knp) += le64toh((_valp)->eq_u64[0]);                 \
1155         _NOTE(CONSTANTCONDITION)                                        \
1156         } while (B_FALSE)
1157
1158 #define EFSYS_STAT_SUBR_QWORD(_knp, _valp)                              \
1159         do {                                                            \
1160                 *(_knp) -= le64toh((_valp)->eq_u64[0]);                 \
1161         _NOTE(CONSTANTCONDITION)                                        \
1162         } while (B_FALSE)
1163
1164 /* ERR */
1165
1166 extern void     sfxge_err(efsys_identifier_t *, unsigned int,
1167                     uint32_t, uint32_t);
1168
1169 #if EFSYS_OPT_DECODE_INTR_FATAL
1170 #define EFSYS_ERR(_esip, _code, _dword0, _dword1)                       \
1171         do {                                                            \
1172                 sfxge_err((_esip), (_code), (_dword0), (_dword1));      \
1173         _NOTE(CONSTANTCONDITION)                                        \
1174         } while (B_FALSE)
1175 #endif
1176
1177 /* ASSERT */
1178
1179 #define EFSYS_ASSERT(_exp) do {                                         \
1180         if (!(_exp))                                                    \
1181                 panic("%s", #_exp);                                     \
1182         } while (0)
1183
1184 #define EFSYS_ASSERT3(_x, _op, _y, _t) do {                             \
1185         const _t __x = (_t)(_x);                                        \
1186         const _t __y = (_t)(_y);                                        \
1187         if (!(__x _op __y))                                             \
1188                 panic("assertion failed at %s:%u", __FILE__, __LINE__); \
1189         } while(0)
1190
1191 #define EFSYS_ASSERT3U(_x, _op, _y)     EFSYS_ASSERT3(_x, _op, _y, uint64_t)
1192 #define EFSYS_ASSERT3S(_x, _op, _y)     EFSYS_ASSERT3(_x, _op, _y, int64_t)
1193 #define EFSYS_ASSERT3P(_x, _op, _y)     EFSYS_ASSERT3(_x, _op, _y, uintptr_t)
1194
1195 /* ROTATE */
1196
1197 #define EFSYS_HAS_ROTL_DWORD 0
1198
1199 #ifdef  __cplusplus
1200 }
1201 #endif
1202
1203 #endif  /* _SYS_EFSYS_H */