sys/dev/arcmsr/arcmsr.c

   1 /*
   2 *****************************************************************************************
   3 **        O.S   : FreeBSD
   4 **   FILE NAME  : arcmsr.c
   5 **        BY    : Erich Chen
   6 **   Description: SCSI RAID Device Driver for
   7 **                ARECA (ARC11XX/ARC12XX/ARC13XX/ARC16XX) SATA/SAS RAID HOST Adapter
   8 **                ARCMSR RAID Host adapter
   9 **                [RAID controller:INTEL 331(PCI-X) 341(PCI-EXPRESS) chip set]
  10 ******************************************************************************************
  11 ************************************************************************
  12 **
  13 ** Copyright (c) 2004-2006 ARECA Co. Ltd.
  14 **        Erich Chen, Taipei Taiwan All rights reserved.
  15 **
  16 ** Redistribution and use in source and binary forms, with or without
  17 ** modification, are permitted provided that the following conditions
  18 ** are met:
  19 ** 1. Redistributions of source code must retain the above copyright
  20 **    notice, this list of conditions and the following disclaimer.
  21 ** 2. Redistributions in binary form must reproduce the above copyright
  22 **    notice, this list of conditions and the following disclaimer in the
  23 **    documentation and/or other materials provided with the distribution.
  24 ** 3. The name of the author may not be used to endorse or promote products
  25 **    derived from this software without specific prior written permission.
  26 **
  27 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  28 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  29 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  30 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  31 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT
  32 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  33 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
  34 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  35 **(INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
  36 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37 **************************************************************************
  38 ** History
  39 **
  40 **        REV#         DATE                 NAME                 DESCRIPTION
  41 **     1.00.00.00    3/31/2004         Erich Chen            First release
  42 **     1.20.00.02   11/29/2004         Erich Chen        bug fix with arcmsr_bus_reset when PHY error
  43 **     1.20.00.03    4/19/2005         Erich Chen        add SATA 24 Ports adapter type support
  44 **                                                       clean unused function
  45 **     1.20.00.12    9/12/2005         Erich Chen        bug fix with abort command handling,
  46 **                                                       firmware version check
  47 **                                                       and firmware update notify for hardware bug fix
  48 **                                                       handling if none zero high part physical address
  49 **                                                       of srb resource
  50 **     1.20.00.13    8/18/2006         Erich Chen        remove pending srb and report busy
  51 **                                                       add iop message xfer
  52 **                                                       with scsi pass-through command
  53 **                                                       add new device id of sas raid adapters
  54 **                                                       code fit for SPARC64 & PPC
  55 **     1.20.00.14   02/05/2007         Erich Chen        bug fix for incorrect ccb_h.status report
  56 **                                                       and cause g_vfs_done() read write error
  57 **     1.20.00.15   10/10/2007         Erich Chen        support new RAID adapter type ARC120x
  58 ******************************************************************************************
  59 * $FreeBSD$
  60 */
  61 #include <sys/param.h>
  62 #include <sys/systm.h>
  63 #include <sys/malloc.h>
  64 #include <sys/kernel.h>
  65 #include <sys/bus.h>
  66 #include <sys/queue.h>
  67 #include <sys/stat.h>
  68 #include <sys/devicestat.h>
  69 #include <sys/kthread.h>
  70 #include <sys/module.h>
  71 #include <sys/proc.h>
  72 #include <sys/lock.h>
  73 #include <sys/sysctl.h>
  74 #include <sys/poll.h>
  75 #include <sys/ioccom.h>
  76 #include <vm/vm.h>
  77 #include <vm/vm_param.h>
  78 #include <vm/pmap.h>
  79
  80 #include <isa/rtc.h>
  81
  82 #include <machine/bus.h>
  83 #include <machine/resource.h>
  84 #include <machine/atomic.h>
  85 #include <sys/conf.h>
  86 #include <sys/rman.h>
  87
  88 #include <cam/cam.h>
  89 #include <cam/cam_ccb.h>
  90 #include <cam/cam_sim.h>
  91 #include <cam/cam_xpt_sim.h>
  92 #include <cam/cam_debug.h>
  93 #include <cam/scsi/scsi_all.h>
  94 #include <cam/scsi/scsi_message.h>
  95 /*
  96 **************************************************************************
  97 **************************************************************************
  98 */
  99 #if __FreeBSD_version >= 500005
 100     #include <sys/selinfo.h>
 101     #include <sys/mutex.h>
 102     #include <sys/endian.h>
 103     #include <dev/pci/pcivar.h>
 104     #include <dev/pci/pcireg.h>
 105     #define ARCMSR_LOCK_INIT(l, s)      mtx_init(l, s, NULL, MTX_DEF)
 106     #define ARCMSR_LOCK_DESTROY(l)      mtx_destroy(l)
 107     #define ARCMSR_LOCK_ACQUIRE(l)      mtx_lock(l)
 108     #define ARCMSR_LOCK_RELEASE(l)      mtx_unlock(l)
 109     #define ARCMSR_LOCK_TRY(l)          mtx_trylock(l)
 110     #define arcmsr_htole32(x)           htole32(x)
 111     typedef struct mtx          arcmsr_lock_t;
 112 #else
 113     #include <sys/select.h>
 114     #include <pci/pcivar.h>
 115     #include <pci/pcireg.h>
 116     #define ARCMSR_LOCK_INIT(l, s)      simple_lock_init(l)
 117     #define ARCMSR_LOCK_DESTROY(l)
 118     #define ARCMSR_LOCK_ACQUIRE(l)      simple_lock(l)
 119     #define ARCMSR_LOCK_RELEASE(l)      simple_unlock(l)
 120     #define ARCMSR_LOCK_TRY(l)          simple_lock_try(l)
 121     #define arcmsr_htole32(x)           (x)
 122     typedef struct simplelock           arcmsr_lock_t;
 123 #endif
 124
 125 #if !defined(CAM_NEW_TRAN_CODE) && __FreeBSD_version >= 700025
 126 #define CAM_NEW_TRAN_CODE       1
 127 #endif
 128
 129 #include <dev/arcmsr/arcmsr.h>
 130 #define ARCMSR_SRBS_POOL_SIZE           ((sizeof(struct CommandControlBlock) * ARCMSR_MAX_FREESRB_NUM))
 131 /*
 132 **************************************************************************
 133 **************************************************************************
 134 */
 135 #define CHIP_REG_READ32(s, b, r)        bus_space_read_4(acb->btag[b], acb->bhandle[b], offsetof(struct s, r))
 136 #define CHIP_REG_WRITE32(s, b, r, d)    bus_space_write_4(acb->btag[b], acb->bhandle[b], offsetof(struct s, r), d)
 137 /*
 138 **************************************************************************
 139 **************************************************************************
 140 */
 141 static struct CommandControlBlock * arcmsr_get_freesrb(struct AdapterControlBlock *acb);
 142 static u_int8_t arcmsr_seek_cmd2abort(union ccb * abortccb);
 143 static u_int32_t arcmsr_probe(device_t dev);
 144 static u_int32_t arcmsr_attach(device_t dev);
 145 static u_int32_t arcmsr_detach(device_t dev);
 146 static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg);
 147 static void arcmsr_iop_parking(struct AdapterControlBlock *acb);
 148 static void arcmsr_shutdown(device_t dev);
 149 static void arcmsr_interrupt(struct AdapterControlBlock *acb);
 150 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb);
 151 static void arcmsr_free_resource(struct AdapterControlBlock *acb);
 152 static void arcmsr_bus_reset(struct AdapterControlBlock *acb);
 153 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
 154 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
 155 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
 156 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb);
 157 static void arcmsr_post_ioctldata2iop(struct AdapterControlBlock *acb);
 158 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb);
 159 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag);
 160 static void arcmsr_iop_reset(struct AdapterControlBlock *acb);
 161 static void arcmsr_report_sense_info(struct CommandControlBlock *srb);
 162 static void arcmsr_build_srb(struct CommandControlBlock *srb, bus_dma_segment_t * dm_segs, u_int32_t nseg);
 163 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb * pccb);
 164 static int arcmsr_resume(device_t dev);
 165 static int arcmsr_suspend(device_t dev);
 166 /*
 167 **************************************************************************
 168 **************************************************************************
 169 */
 170 static void UDELAY(u_int32_t us) { DELAY(us); }
 171 /*
 172 **************************************************************************
 173 **************************************************************************
 174 */
 175 static bus_dmamap_callback_t arcmsr_map_freesrb;
 176 static bus_dmamap_callback_t arcmsr_executesrb;
 177 /*
 178 **************************************************************************
 179 **************************************************************************
 180 */
 181 static d_open_t arcmsr_open;
 182 static d_close_t arcmsr_close;
 183 static d_ioctl_t arcmsr_ioctl;
 184
 185 static device_method_t arcmsr_methods[]={
 186         DEVMETHOD(device_probe,         arcmsr_probe),
 187         DEVMETHOD(device_attach,        arcmsr_attach),
 188         DEVMETHOD(device_detach,        arcmsr_detach),
 189         DEVMETHOD(device_shutdown,      arcmsr_shutdown),
 190         DEVMETHOD(device_suspend,       arcmsr_suspend),
 191         DEVMETHOD(device_resume,        arcmsr_resume),
 192
 193         DEVMETHOD(bus_print_child,      bus_generic_print_child),
 194         DEVMETHOD(bus_driver_added,     bus_generic_driver_added),
 195         { 0, 0 }
 196 };
 197
 198 static driver_t arcmsr_driver={
 199         "arcmsr", arcmsr_methods, sizeof(struct AdapterControlBlock)
 200 };
 201
 202 static devclass_t arcmsr_devclass;
 203 DRIVER_MODULE(arcmsr, pci, arcmsr_driver, arcmsr_devclass, 0, 0);
 204 MODULE_DEPEND(arcmsr, pci, 1, 1, 1);
 205 MODULE_DEPEND(arcmsr, cam, 1, 1, 1);
 206 #ifndef BUS_DMA_COHERENT
 207         #define BUS_DMA_COHERENT        0x04    /* hint: map memory in a coherent way */
 208 #endif
 209 #if __FreeBSD_version >= 501000
 210         #ifndef D_NEEDGIANT
 211                 #define D_NEEDGIANT     0x00400000      /* driver want Giant */
 212         #endif
 213         #ifndef D_VERSION
 214                 #define D_VERSION       0x20011966
 215         #endif
 216         static struct cdevsw arcmsr_cdevsw={
 217         #if __FreeBSD_version > 502010
 218                 .d_version = D_VERSION,
 219         #endif
 220         .d_flags   = D_NEEDGIANT,
 221         .d_open    = arcmsr_open,               /* open     */
 222         .d_close   = arcmsr_close,              /* close    */
 223         .d_ioctl   = arcmsr_ioctl,              /* ioctl    */
 224         .d_name    = "arcmsr",                  /* name     */
 225         };
 226 #else
 227         #define ARCMSR_CDEV_MAJOR       180
 228
 229         static struct cdevsw arcmsr_cdevsw = {
 230                 arcmsr_open,                    /* open     */
 231                 arcmsr_close,                   /* close    */
 232                 noread,                         /* read     */
 233                 nowrite,                        /* write    */
 234                 arcmsr_ioctl,                   /* ioctl    */
 235                 nopoll,                         /* poll     */
 236                 nommap,                         /* mmap     */
 237                 nostrategy,                     /* strategy */
 238                 "arcmsr",                       /* name     */
 239                 ARCMSR_CDEV_MAJOR,              /* major    */
 240                 nodump,                         /* dump     */
 241                 nopsize,                        /* psize    */
 242                 0                               /* flags    */
 243         };
 244 #endif
 245
 246 #if __FreeBSD_version < 500005
 247         static int arcmsr_open(dev_t dev, int flags, int fmt, struct proc *proc)
 248 #else
 249         #if __FreeBSD_version < 503000
 250                 static int arcmsr_open(dev_t dev, int flags, int fmt, struct thread *proc)
 251         #else
 252                 static int arcmsr_open(struct cdev *dev, int flags, int fmt, d_thread_t *proc)
 253         #endif
 254 #endif
 255 {
 256         #if __FreeBSD_version < 503000
 257                 struct AdapterControlBlock *acb=dev->si_drv1;
 258         #else
 259                 int     unit = minor(dev);
 260                 struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
 261         #endif
 262         if(acb==NULL) {
 263                 return ENXIO;
 264         }
 265         return 0;
 266 }
 267 /*
 268 **************************************************************************
 269 **************************************************************************
 270 */
 271 #if __FreeBSD_version < 500005
 272         static int arcmsr_close(dev_t dev, int flags, int fmt, struct proc *proc)
 273 #else
 274         #if __FreeBSD_version < 503000
 275                 static int arcmsr_close(dev_t dev, int flags, int fmt, struct thread *proc)
 276         #else
 277                 static int arcmsr_close(struct cdev *dev, int flags, int fmt, d_thread_t *proc)
 278         #endif
 279 #endif
 280 {
 281         #if __FreeBSD_version < 503000
 282                 struct AdapterControlBlock *acb=dev->si_drv1;
 283         #else
 284                 int     unit = minor(dev);
 285                 struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
 286         #endif
 287         if(acb==NULL) {
 288                 return ENXIO;
 289         }
 290         return 0;
 291 }
 292 /*
 293 **************************************************************************
 294 **************************************************************************
 295 */
 296 #if __FreeBSD_version < 500005
 297         static int arcmsr_ioctl(dev_t dev, u_long ioctl_cmd, caddr_t arg, int flags, struct proc *proc)
 298 #else
 299         #if __FreeBSD_version < 503000
 300                 static int arcmsr_ioctl(dev_t dev, u_long ioctl_cmd, caddr_t arg, int flags, struct thread *proc)
 301         #else
 302                 static int arcmsr_ioctl(struct cdev *dev, u_long ioctl_cmd, caddr_t arg, int flags, d_thread_t *proc)
 303         #endif
 304 #endif
 305 {
 306         #if __FreeBSD_version < 503000
 307                 struct AdapterControlBlock *acb=dev->si_drv1;
 308         #else
 309                 int     unit = minor(dev);
 310                 struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
 311         #endif
 312
 313         if(acb==NULL) {
 314                 return ENXIO;
 315         }
 316         return(arcmsr_iop_ioctlcmd(acb, ioctl_cmd, arg));
 317 }
 318 /*
 319 **********************************************************************
 320 **********************************************************************
 321 */
 322 static u_int32_t arcmsr_disable_allintr( struct AdapterControlBlock *acb)
 323 {
 324         u_int32_t intmask_org=0;
 325
 326         switch (acb->adapter_type) {
 327         case ACB_ADAPTER_TYPE_A: {
 328                         /* disable all outbound interrupt */
 329                         intmask_org=CHIP_REG_READ32(HBA_MessageUnit,
 330                         0, outbound_intmask)|ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE; /* disable outbound message0 int */
 331                         CHIP_REG_WRITE32(HBA_MessageUnit,
 332                         0, outbound_intmask, intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE);
 333                 }
 334                 break;
 335         case ACB_ADAPTER_TYPE_B: {
 336                         /* disable all outbound interrupt */
 337                         intmask_org=CHIP_REG_READ32(HBB_DOORBELL,
 338                         0, iop2drv_doorbell_mask) & (~ARCMSR_IOP2DRV_MESSAGE_CMD_DONE); /* disable outbound message0 int */
 339                         CHIP_REG_WRITE32(HBB_DOORBELL,
 340                         0, iop2drv_doorbell_mask, 0); /* disable all interrupt */
 341                 }
 342                 break;
 343         }
 344         return(intmask_org);
 345 }
 346 /*
 347 **********************************************************************
 348 **********************************************************************
 349 */
 350 static void arcmsr_enable_allintr( struct AdapterControlBlock *acb, u_int32_t intmask_org)
 351 {
 352         u_int32_t mask;
 353
 354         switch (acb->adapter_type) {
 355         case ACB_ADAPTER_TYPE_A: {
 356                         /* enable outbound Post Queue, outbound doorbell Interrupt */
 357                         mask=~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE|ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
 358                         CHIP_REG_WRITE32(HBA_MessageUnit, 0, outbound_intmask, intmask_org & mask);
 359                         acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
 360                 }
 361                 break;
 362         case ACB_ADAPTER_TYPE_B: {
 363                         /* disable ARCMSR_IOP2DRV_MESSAGE_CMD_DONE */
 364                         mask=(ARCMSR_IOP2DRV_DATA_WRITE_OK|ARCMSR_IOP2DRV_DATA_READ_OK|ARCMSR_IOP2DRV_CDB_DONE);
 365                         CHIP_REG_WRITE32(HBB_DOORBELL,
 366                         0, iop2drv_doorbell_mask, intmask_org | mask); /*1=interrupt enable, 0=interrupt disable*/
 367                         acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
 368                 }
 369                 break;
 370         }
 371         return;
 372 }
 373 /*
 374 **********************************************************************
 375 **********************************************************************
 376 */
 377 static u_int8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
 378 {
 379         u_int32_t Index;
 380         u_int8_t Retries=0x00;
 381
 382         do {
 383                 for(Index=0; Index < 100; Index++) {
 384                         if(CHIP_REG_READ32(HBA_MessageUnit,
 385                                 0, outbound_intstatus) & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
 386                                 CHIP_REG_WRITE32(HBA_MessageUnit,
 387                                 0, outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);/*clear interrupt*/
 388                                 return TRUE;
 389                         }
 390                         UDELAY(10000);
 391                 }/*max 1 seconds*/
 392         }while(Retries++ < 20);/*max 20 sec*/
 393         return FALSE;
 394 }
 395 /*
 396 **********************************************************************
 397 **********************************************************************
 398 */
 399 static u_int8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
 400 {
 401         u_int32_t Index;
 402         u_int8_t Retries=0x00;
 403
 404         do {
 405                 for(Index=0; Index < 100; Index++) {
 406                         if(CHIP_REG_READ32(HBB_DOORBELL,
 407                                 0, iop2drv_doorbell) & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
 408                                 CHIP_REG_WRITE32(HBB_DOORBELL,
 409                                 0, iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);/*clear interrupt*/
 410                                 CHIP_REG_WRITE32(HBB_DOORBELL,
 411                                 0, drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
 412                                 return TRUE;
 413                         }
 414                         UDELAY(10000);
 415                 }/*max 1 seconds*/
 416         }while(Retries++ < 20);/*max 20 sec*/
 417         return FALSE;
 418 }
 419 /*
 420 ************************************************************************
 421 ************************************************************************
 422 */
 423 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
 424 {
 425         int retry_count=30;/* enlarge wait flush adapter cache time: 10 minute */
 426
 427         CHIP_REG_WRITE32(HBA_MessageUnit,
 428         0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
 429         do {
 430                 if(arcmsr_hba_wait_msgint_ready(acb)) {
 431                         break;
 432                 } else {
 433                         retry_count--;
 434                 }
 435         }while(retry_count!=0);
 436         return;
 437 }
 438 /*
 439 ************************************************************************
 440 ************************************************************************
 441 */
 442 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
 443 {
 444         int retry_count=30;/* enlarge wait flush adapter cache time: 10 minute */
 445
 446         CHIP_REG_WRITE32(HBB_DOORBELL,
 447         0, drv2iop_doorbell, ARCMSR_MESSAGE_FLUSH_CACHE);
 448         do {
 449                 if(arcmsr_hbb_wait_msgint_ready(acb)) {
 450                         break;
 451                 } else {
 452                         retry_count--;
 453                 }
 454         }while(retry_count!=0);
 455         return;
 456 }
 457 /*
 458 ************************************************************************
 459 ************************************************************************
 460 */
 461 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
 462 {
 463         switch (acb->adapter_type) {
 464         case ACB_ADAPTER_TYPE_A: {
 465                         arcmsr_flush_hba_cache(acb);
 466                 }
 467                 break;
 468         case ACB_ADAPTER_TYPE_B: {
 469                         arcmsr_flush_hbb_cache(acb);
 470                 }
 471                 break;
 472         }
 473         return;
 474 }
 475 /*
 476 *******************************************************************************
 477 *******************************************************************************
 478 */
 479 static int arcmsr_suspend(device_t dev)
 480 {
 481         struct AdapterControlBlock      *acb = device_get_softc(dev);
 482
 483         /* disable all outbound interrupt */
 484         arcmsr_disable_allintr(acb);
 485         /* flush controller */
 486         arcmsr_iop_parking(acb);
 487         return(0);
 488 }
 489 /*
 490 *******************************************************************************
 491 *******************************************************************************
 492 */
 493 static int arcmsr_resume(device_t dev)
 494 {
 495         struct AdapterControlBlock      *acb = device_get_softc(dev);
 496
 497         arcmsr_iop_init(acb);
 498         return(0);
 499 }
 500 /*
 501 *********************************************************************************
 502 *********************************************************************************
 503 */
 504 static void arcmsr_async(void *cb_arg, u_int32_t code, struct cam_path *path, void *arg)
 505 {
 506         struct AdapterControlBlock *acb;
 507         u_int8_t target_id, target_lun;
 508         struct cam_sim * sim;
 509
 510         sim=(struct cam_sim *) cb_arg;
 511         acb =(struct AdapterControlBlock *) cam_sim_softc(sim);
 512         switch (code) {
 513         case AC_LOST_DEVICE:
 514                 target_id=xpt_path_target_id(path);
 515                 target_lun=xpt_path_lun_id(path);
 516                 if((target_id > ARCMSR_MAX_TARGETID)
 517                 || (target_lun > ARCMSR_MAX_TARGETLUN)) {
 518                         break;
 519                 }
 520                 printf("%s:scsi id%d lun%d device lost \n"
 521                         , device_get_name(acb->pci_dev), target_id, target_lun);
 522                 break;
 523         default:
 524                 break;
 525         }
 526 }
 527 /*
 528 **********************************************************************
 529 **********************************************************************
 530 */
 531 static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag)
 532 {
 533         struct AdapterControlBlock *acb=srb->acb;
 534         union ccb * pccb=srb->pccb;
 535
 536         if((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
 537                 bus_dmasync_op_t op;
 538
 539                 if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
 540                         op = BUS_DMASYNC_POSTREAD;
 541                 } else {
 542                         op = BUS_DMASYNC_POSTWRITE;
 543                 }
 544                 bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
 545                 bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
 546         }
 547         if(stand_flag==1) {
 548                 atomic_subtract_int(&acb->srboutstandingcount, 1);
 549                 if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) && (
 550                 acb->srboutstandingcount < ARCMSR_RELEASE_SIMQ_LEVEL)) {
 551                         acb->acb_flags &= ~ACB_F_CAM_DEV_QFRZN;
 552                         pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
 553                 }
 554         }
 555         srb->startdone=ARCMSR_SRB_DONE;
 556         srb->srb_flags=0;
 557         acb->srbworkingQ[acb->workingsrb_doneindex]=srb;
 558         acb->workingsrb_doneindex++;
 559         acb->workingsrb_doneindex %= ARCMSR_MAX_FREESRB_NUM;
 560         xpt_done(pccb);
 561         return;
 562 }
 563 /*
 564 **********************************************************************
 565 **********************************************************************
 566 */
 567 static void arcmsr_report_sense_info(struct CommandControlBlock *srb)
 568 {
 569         union ccb * pccb=srb->pccb;
 570
 571         pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
 572         pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
 573         if(&pccb->csio.sense_data) {
 574                 memset(&pccb->csio.sense_data, 0, sizeof(pccb->csio.sense_data));
 575                 memcpy(&pccb->csio.sense_data, srb->arcmsr_cdb.SenseData,
 576                 get_min(sizeof(struct SENSE_DATA), sizeof(pccb->csio.sense_data)));
 577                 ((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70); /* Valid,ErrorCode */
 578                 pccb->ccb_h.status |= CAM_AUTOSNS_VALID;
 579         }
 580         return;
 581 }
 582 /*
 583 *********************************************************************
 584 *********************************************************************
 585 */
 586 static void arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
 587 {
 588         CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
 589         if(!arcmsr_hba_wait_msgint_ready(acb)) {
 590                 printf("arcmsr%d: wait 'abort all outstanding command' timeout \n"
 591                         , acb->pci_unit);
 592         }
 593         return;
 594 }
 595 /*
 596 *********************************************************************
 597 *********************************************************************
 598 */
 599 static void arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
 600 {
 601         CHIP_REG_WRITE32(HBB_DOORBELL, 0, drv2iop_doorbell, ARCMSR_MESSAGE_ABORT_CMD);
 602         if(!arcmsr_hbb_wait_msgint_ready(acb)) {
 603                 printf("arcmsr%d: wait 'abort all outstanding command' timeout \n"
 604                         , acb->pci_unit);
 605         }
 606         return;
 607 }
 608 /*
 609 *********************************************************************
 610 *********************************************************************
 611 */
 612 static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
 613 {
 614         switch (acb->adapter_type) {
 615         case ACB_ADAPTER_TYPE_A: {
 616                         arcmsr_abort_hba_allcmd(acb);
 617                 }
 618                 break;
 619         case ACB_ADAPTER_TYPE_B: {
 620                         arcmsr_abort_hbb_allcmd(acb);
 621                 }
 622                 break;
 623         }
 624         return;
 625 }
 626 /*
 627 **************************************************************************
 628 **************************************************************************
 629 */
 630 static void arcmsr_report_srb_state(struct AdapterControlBlock *acb,
 631         struct CommandControlBlock *srb, u_int32_t flag_srb)
 632 {
 633         int target, lun;
 634
 635         target=srb->pccb->ccb_h.target_id;
 636         lun=srb->pccb->ccb_h.target_lun;
 637         if((flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR)==0) {
 638                 if(acb->devstate[target][lun]==ARECA_RAID_GONE) {
 639                         acb->devstate[target][lun]=ARECA_RAID_GOOD;
 640                 }
 641                 srb->pccb->ccb_h.status |= CAM_REQ_CMP;
 642                 arcmsr_srb_complete(srb, 1);
 643         } else {
 644                 switch(srb->arcmsr_cdb.DeviceStatus) {
 645                 case ARCMSR_DEV_SELECT_TIMEOUT: {
 646                                 if(acb->devstate[target][lun]==ARECA_RAID_GOOD) {
 647                                         printf( "arcmsr%d: select timeout"
 648                                                 ", raid volume was kicked out \n"
 649                                                 , acb->pci_unit);
 650                                 }
 651                                 acb->devstate[target][lun]=ARECA_RAID_GONE;
 652                                 srb->pccb->ccb_h.status |= CAM_SEL_TIMEOUT;
 653                                 arcmsr_srb_complete(srb, 1);
 654                         }
 655                         break;
 656                 case ARCMSR_DEV_ABORTED:
 657                 case ARCMSR_DEV_INIT_FAIL: {
 658                                 acb->devstate[target][lun]=ARECA_RAID_GONE;
 659                                 srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
 660                                 arcmsr_srb_complete(srb, 1);
 661                         }
 662                         break;
 663                 case SCSISTAT_CHECK_CONDITION: {
 664                                 acb->devstate[target][lun]=ARECA_RAID_GOOD;
 665                                 arcmsr_report_sense_info(srb);
 666                                 arcmsr_srb_complete(srb, 1);
 667                         }
 668                         break;
 669                 default:
 670                         printf("arcmsr%d: scsi id=%d lun=%d"
 671                                 "isr get command error done,"
 672                                 "but got unknow DeviceStatus=0x%x \n"
 673                                 , acb->pci_unit, target, lun
 674                                 ,srb->arcmsr_cdb.DeviceStatus);
 675                         acb->devstate[target][lun]=ARECA_RAID_GONE;
 676                         srb->pccb->ccb_h.status |= CAM_UNCOR_PARITY;
 677                         /*unknow error or crc error just for retry*/
 678                         arcmsr_srb_complete(srb, 1);
 679                         break;
 680                 }
 681         }
 682         return;
 683 }
 684 /*
 685 **************************************************************************
 686 **************************************************************************
 687 */
 688 static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, u_int32_t flag_srb)
 689 {
 690         struct CommandControlBlock *srb;
 691
 692         /* check if command done with no error*/
 693         srb=(struct CommandControlBlock *)
 694                 (acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
 695         if((srb->acb!=acb) || (srb->startdone!=ARCMSR_SRB_START)) {
 696                 if(srb->startdone==ARCMSR_SRB_ABORTED) {
 697                         printf("arcmsr%d: srb='%p' isr got aborted command \n"
 698                                 , acb->pci_unit, srb);
 699                         srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
 700                         arcmsr_srb_complete(srb, 1);
 701                         return;
 702                 }
 703                 printf("arcmsr%d: isr get an illegal srb command done"
 704                         "acb='%p' srb='%p' srbacb='%p' startdone=0x%x"
 705                         "srboutstandingcount=%d \n",
 706                         acb->pci_unit, acb, srb, srb->acb,
 707                         srb->startdone, acb->srboutstandingcount);
 708                 return;
 709         }
 710         arcmsr_report_srb_state(acb, srb, flag_srb);
 711         return;
 712 }
 713 /*
 714 **********************************************************************
 715 **********************************************************************
 716 */
 717 static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
 718 {
 719         int i=0;
 720         u_int32_t flag_srb;
 721
 722         switch (acb->adapter_type) {
 723         case ACB_ADAPTER_TYPE_A: {
 724                         u_int32_t outbound_intstatus;
 725
 726                         /*clear and abort all outbound posted Q*/
 727                         outbound_intstatus=CHIP_REG_READ32(HBA_MessageUnit,
 728                         0, outbound_intstatus) & acb->outbound_int_enable;
 729                         CHIP_REG_WRITE32(HBA_MessageUnit,
 730                         0, outbound_intstatus, outbound_intstatus);/*clear interrupt*/
 731                         while(((flag_srb=CHIP_REG_READ32(HBA_MessageUnit,
 732                                 0, outbound_queueport)) != 0xFFFFFFFF)
 733                                 && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
 734                                 arcmsr_drain_donequeue(acb, flag_srb);
 735                         }
 736                 }
 737                 break;
 738         case ACB_ADAPTER_TYPE_B: {
 739                         struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
 740
 741                         /*clear all outbound posted Q*/
 742                         CHIP_REG_WRITE32(HBB_DOORBELL,
 743                         0, iop2drv_doorbell,
 744                         ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
 745                         for(i=0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
 746                                 if((flag_srb=phbbmu->done_qbuffer[i])!=0) {
 747                                         phbbmu->done_qbuffer[i]=0;
 748                                         arcmsr_drain_donequeue(acb, flag_srb);
 749                                 }
 750                                 phbbmu->post_qbuffer[i]=0;
 751                         }/*drain reply FIFO*/
 752                         phbbmu->doneq_index=0;
 753                         phbbmu->postq_index=0;
 754                 }
 755                 break;
 756         }
 757         return;
 758 }
 759 /*
 760 ****************************************************************************
 761 ****************************************************************************
 762 */
 763 static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
 764 {
 765         struct CommandControlBlock *srb;
 766         u_int32_t intmask_org;
 767         u_int32_t i=0;
 768
 769         if(acb->srboutstandingcount>0) {
 770                 /* disable all outbound interrupt */
 771                 intmask_org=arcmsr_disable_allintr(acb);
 772                 /*clear and abort all outbound posted Q*/
 773                 arcmsr_done4abort_postqueue(acb);
 774                 /* talk to iop 331 outstanding command aborted*/
 775                 arcmsr_abort_allcmd(acb);
 776                 for(i=0;i<ARCMSR_MAX_FREESRB_NUM;i++) {
 777                         srb=acb->psrb_pool[i];
 778                         if(srb->startdone==ARCMSR_SRB_START) {
 779                                 srb->startdone=ARCMSR_SRB_ABORTED;
 780                                 srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
 781                                 arcmsr_srb_complete(srb, 1);
 782                         }
 783                 }
 784                 /* enable all outbound interrupt */
 785                 arcmsr_enable_allintr(acb, intmask_org);
 786         }
 787         atomic_set_int(&acb->srboutstandingcount, 0);
 788         acb->workingsrb_doneindex=0;
 789         acb->workingsrb_startindex=0;
 790         return;
 791 }
 792 /*
 793 **********************************************************************
 794 **********************************************************************
 795 */
 796 static void arcmsr_build_srb(struct CommandControlBlock *srb,
 797                 bus_dma_segment_t *dm_segs, u_int32_t nseg)
 798 {
 799         struct ARCMSR_CDB * arcmsr_cdb= &srb->arcmsr_cdb;
 800         u_int8_t * psge=(u_int8_t *)&arcmsr_cdb->u;
 801         u_int32_t address_lo, address_hi;
 802         union ccb * pccb=srb->pccb;
 803         struct ccb_scsiio * pcsio= &pccb->csio;
 804         u_int32_t arccdbsize=0x30;
 805
 806         memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
 807         arcmsr_cdb->Bus=0;
 808         arcmsr_cdb->TargetID=pccb->ccb_h.target_id;
 809         arcmsr_cdb->LUN=pccb->ccb_h.target_lun;
 810         arcmsr_cdb->Function=1;
 811         arcmsr_cdb->CdbLength=(u_int8_t)pcsio->cdb_len;
 812         arcmsr_cdb->Context=0;
 813         bcopy(pcsio->cdb_io.cdb_bytes, arcmsr_cdb->Cdb, pcsio->cdb_len);
 814         if(nseg != 0) {
 815                 struct AdapterControlBlock *acb=srb->acb;
 816                 bus_dmasync_op_t op;
 817                 u_int32_t length, i, cdb_sgcount=0;
 818
 819                 if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
 820                         op=BUS_DMASYNC_PREREAD;
 821                 } else {
 822                         op=BUS_DMASYNC_PREWRITE;
 823                         arcmsr_cdb->Flags|=ARCMSR_CDB_FLAG_WRITE;
 824                         srb->srb_flags|=SRB_FLAG_WRITE;
 825                 }
 826                 bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
 827                 for(i=0;i<nseg;i++) {
 828                         /* Get the physical address of the current data pointer */
 829                         length=arcmsr_htole32(dm_segs[i].ds_len);
 830                         address_lo=arcmsr_htole32(dma_addr_lo32(dm_segs[i].ds_addr));
 831                         address_hi=arcmsr_htole32(dma_addr_hi32(dm_segs[i].ds_addr));
 832                         if(address_hi==0) {
 833                                 struct SG32ENTRY * pdma_sg=(struct SG32ENTRY *)psge;
 834                                 pdma_sg->address=address_lo;
 835                                 pdma_sg->length=length;
 836                                 psge += sizeof(struct SG32ENTRY);
 837                                 arccdbsize += sizeof(struct SG32ENTRY);
 838                         } else {
 839                                 u_int32_t sg64s_size=0, tmplength=length;
 840
 841                                 while(1) {
 842                                         u_int64_t span4G, length0;
 843                                         struct SG64ENTRY * pdma_sg=(struct SG64ENTRY *)psge;
 844
 845                                         span4G=(u_int64_t)address_lo + tmplength;
 846                                         pdma_sg->addresshigh=address_hi;
 847                                         pdma_sg->address=address_lo;
 848                                         if(span4G > 0x100000000) {
 849                                                 /*see if cross 4G boundary*/
 850                                                 length0=0x100000000-address_lo;
 851                                                 pdma_sg->length=(u_int32_t)length0|IS_SG64_ADDR;
 852                                                 address_hi=address_hi+1;
 853                                                 address_lo=0;
 854                                                 tmplength=tmplength-(u_int32_t)length0;
 855                                                 sg64s_size += sizeof(struct SG64ENTRY);
 856                                                 psge += sizeof(struct SG64ENTRY);
 857                                                 cdb_sgcount++;
 858                                         } else {
 859                                                 pdma_sg->length=tmplength|IS_SG64_ADDR;
 860                                                 sg64s_size += sizeof(struct SG64ENTRY);
 861                                                 psge += sizeof(struct SG64ENTRY);
 862                                                 break;
 863                                         }
 864                                 }
 865                                 arccdbsize += sg64s_size;
 866                         }
 867                         cdb_sgcount++;
 868                 }
 869                 arcmsr_cdb->sgcount=(u_int8_t)cdb_sgcount;
 870                 arcmsr_cdb->DataLength=pcsio->dxfer_len;
 871                 if( arccdbsize > 256) {
 872                         arcmsr_cdb->Flags|=ARCMSR_CDB_FLAG_SGL_BSIZE;
 873                 }
 874         }
 875         return;
 876 }
 877 /*
 878 **************************************************************************
 879 **************************************************************************
 880 */
 881 static void arcmsr_post_srb(struct AdapterControlBlock *acb, struct CommandControlBlock *srb)
 882 {
 883         u_int32_t cdb_shifted_phyaddr=(u_int32_t) srb->cdb_shifted_phyaddr;
 884         struct ARCMSR_CDB * arcmsr_cdb=(struct ARCMSR_CDB *)&srb->arcmsr_cdb;
 885
 886         bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
 887         (srb->srb_flags & SRB_FLAG_WRITE) ? BUS_DMASYNC_POSTWRITE:BUS_DMASYNC_POSTREAD);
 888         atomic_add_int(&acb->srboutstandingcount, 1);
 889         srb->startdone=ARCMSR_SRB_START;
 890         switch (acb->adapter_type) {
 891         case ACB_ADAPTER_TYPE_A: {
 892                         if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
 893                                 CHIP_REG_WRITE32(HBA_MessageUnit,
 894                                 0, inbound_queueport,
 895                                 cdb_shifted_phyaddr|ARCMSR_SRBPOST_FLAG_SGL_BSIZE);
 896                         } else {
 897                                 CHIP_REG_WRITE32(HBA_MessageUnit,
 898                                 0, inbound_queueport, cdb_shifted_phyaddr);
 899                         }
 900                 }
 901                 break;
 902         case ACB_ADAPTER_TYPE_B: {
 903                         struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
 904                         int ending_index, index;
 905
 906                         index=phbbmu->postq_index;
 907                         ending_index=((index+1)%ARCMSR_MAX_HBB_POSTQUEUE);
 908                         phbbmu->post_qbuffer[ending_index]=0;
 909                         if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
 910                                 phbbmu->post_qbuffer[index]=
 911                                         cdb_shifted_phyaddr|ARCMSR_SRBPOST_FLAG_SGL_BSIZE;
 912                         } else {
 913                                 phbbmu->post_qbuffer[index]=
 914                                         cdb_shifted_phyaddr;
 915                         }
 916                         index++;
 917                         index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
 918                         phbbmu->postq_index=index;
 919                         CHIP_REG_WRITE32(HBB_DOORBELL,
 920                         0, drv2iop_doorbell, ARCMSR_DRV2IOP_CDB_POSTED);
 921                 }
 922                 break;
 923         }
 924         return;
 925 }
 926 /*
 927 ************************************************************************
 928 ************************************************************************
 929 */
 930 static struct QBUFFER * arcmsr_get_iop_rqbuffer( struct AdapterControlBlock *acb)
 931 {
 932         struct QBUFFER *qbuffer=NULL;
 933
 934         switch (acb->adapter_type) {
 935         case ACB_ADAPTER_TYPE_A: {
 936                         struct HBA_MessageUnit *phbamu=(struct HBA_MessageUnit *)acb->pmu;
 937
 938                         qbuffer=(struct QBUFFER *)&phbamu->message_rbuffer;
 939                 }
 940                 break;
 941         case ACB_ADAPTER_TYPE_B: {
 942                         struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
 943
 944                         qbuffer=(struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_rbuffer;
 945                 }
 946                 break;
 947         }
 948         return(qbuffer);
 949 }
 950 /*
 951 ************************************************************************
 952 ************************************************************************
 953 */
 954 static struct QBUFFER * arcmsr_get_iop_wqbuffer( struct AdapterControlBlock *acb)
 955 {
 956         struct QBUFFER *qbuffer=NULL;
 957
 958         switch (acb->adapter_type) {
 959         case ACB_ADAPTER_TYPE_A: {
 960                         struct HBA_MessageUnit *phbamu=(struct HBA_MessageUnit *)acb->pmu;
 961
 962                         qbuffer=(struct QBUFFER *)&phbamu->message_wbuffer;
 963                 }
 964                 break;
 965         case ACB_ADAPTER_TYPE_B: {
 966                         struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
 967
 968                         qbuffer=(struct QBUFFER *)&phbbmu->hbb_rwbuffer->message_wbuffer;
 969                 }
 970                 break;
 971         }
 972         return(qbuffer);
 973 }
 974 /*
 975 **************************************************************************
 976 **************************************************************************
 977 */
 978 static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
 979 {
 980         switch (acb->adapter_type) {
 981         case ACB_ADAPTER_TYPE_A: {
 982                         /* let IOP know data has been read */
 983                         CHIP_REG_WRITE32(HBA_MessageUnit,
 984                         0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
 985                 }
 986                 break;
 987         case ACB_ADAPTER_TYPE_B: {
 988                         /* let IOP know data has been read */
 989                         CHIP_REG_WRITE32(HBB_DOORBELL,
 990                         0, drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
 991                 }
 992                 break;
 993         }
 994         return;
 995 }
 996 /*
 997 **************************************************************************
 998 **************************************************************************
 999 */
1000 static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
1001 {
1002         switch (acb->adapter_type) {
1003         case ACB_ADAPTER_TYPE_A: {
1004                         /*
1005                         ** push inbound doorbell tell iop, driver data write ok
1006                         ** and wait reply on next hwinterrupt for next Qbuffer post
1007                         */
1008                         CHIP_REG_WRITE32(HBA_MessageUnit,
1009                         0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK);
1010                 }
1011                 break;
1012         case ACB_ADAPTER_TYPE_B: {
1013                         /*
1014                         ** push inbound doorbell tell iop, driver data write ok
1015                         ** and wait reply on next hwinterrupt for next Qbuffer post
1016                         */
1017                         CHIP_REG_WRITE32(HBB_DOORBELL,
1018                         0, drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_WRITE_OK);
1019                 }
1020                 break;
1021         }
1022 }
1023 /*
1024 **********************************************************************
1025 **********************************************************************
1026 */
1027 static void arcmsr_post_ioctldata2iop(struct AdapterControlBlock *acb)
1028 {
1029         u_int8_t *pQbuffer;
1030         struct QBUFFER *pwbuffer;
1031         u_int8_t * iop_data;
1032         int32_t allxfer_len=0;
1033
1034         pwbuffer=arcmsr_get_iop_wqbuffer(acb);
1035         iop_data=(u_int8_t *)pwbuffer->data;
1036         if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READ) {
1037                 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1038                 while((acb->wqbuf_firstindex!=acb->wqbuf_lastindex)
1039                         && (allxfer_len<124)) {
1040                         pQbuffer=&acb->wqbuffer[acb->wqbuf_firstindex];
1041                         memcpy(iop_data, pQbuffer, 1);
1042                         acb->wqbuf_firstindex++;
1043                         acb->wqbuf_firstindex %=ARCMSR_MAX_QBUFFER; /*if last index number set it to 0 */
1044                         iop_data++;
1045                         allxfer_len++;
1046                 }
1047                 pwbuffer->data_len=allxfer_len;
1048                 /*
1049                 ** push inbound doorbell and wait reply at hwinterrupt routine for next Qbuffer post
1050                 */
1051                 arcmsr_iop_message_wrote(acb);
1052         }
1053         return;
1054 }
1055 /*
1056 ************************************************************************
1057 ************************************************************************
1058 */
1059 static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb)
1060 {
1061         acb->acb_flags &=~ACB_F_MSG_START_BGRB;
1062         CHIP_REG_WRITE32(HBA_MessageUnit,
1063         0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
1064         if(!arcmsr_hba_wait_msgint_ready(acb)) {
1065                 printf("arcmsr%d: wait 'stop adapter rebulid' timeout \n"
1066                         , acb->pci_unit);
1067         }
1068         return;
1069 }
1070 /*
1071 ************************************************************************
1072 ************************************************************************
1073 */
1074 static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb)
1075 {
1076         acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1077         CHIP_REG_WRITE32(HBB_DOORBELL,
1078         0, drv2iop_doorbell, ARCMSR_MESSAGE_STOP_BGRB);
1079         if(!arcmsr_hbb_wait_msgint_ready(acb)) {
1080                 printf( "arcmsr%d: wait 'stop adapter rebulid' timeout \n"
1081                         , acb->pci_unit);
1082         }
1083         return;
1084 }
1085 /*
1086 ************************************************************************
1087 ************************************************************************
1088 */
1089 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
1090 {
1091         switch (acb->adapter_type) {
1092         case ACB_ADAPTER_TYPE_A: {
1093                         arcmsr_stop_hba_bgrb(acb);
1094                 }
1095                 break;
1096         case ACB_ADAPTER_TYPE_B: {
1097                         arcmsr_stop_hbb_bgrb(acb);
1098                 }
1099                 break;
1100         }
1101         return;
1102 }
1103 /*
1104 ************************************************************************
1105 ************************************************************************
1106 */
1107 static void arcmsr_poll(struct cam_sim * psim)
1108 {
1109         struct AdapterControlBlock *acb;
1110
1111         acb = (struct AdapterControlBlock *)cam_sim_softc(psim);
1112 #if __FreeBSD_version < 700025
1113         ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1114 #endif
1115         arcmsr_interrupt(acb);
1116 #if __FreeBSD_version < 700025
1117         ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1118 #endif
1119         return;
1120 }
1121 /*
1122 **********************************************************************
1123 **********************************************************************
1124 */
1125 static void arcmsr_intr_handler(void *arg)
1126 {
1127         struct AdapterControlBlock *acb=(struct AdapterControlBlock *)arg;
1128
1129         ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1130         arcmsr_interrupt(acb);
1131         ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1132 }
1133 /*
1134 **************************************************************************
1135 **************************************************************************
1136 */
1137 static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
1138 {
1139         struct QBUFFER *prbuffer;
1140         u_int8_t *pQbuffer;
1141         u_int8_t *iop_data;
1142         int my_empty_len, iop_len, rqbuf_firstindex, rqbuf_lastindex;
1143
1144         /*check this iop data if overflow my rqbuffer*/
1145         rqbuf_lastindex=acb->rqbuf_lastindex;
1146         rqbuf_firstindex=acb->rqbuf_firstindex;
1147         prbuffer=arcmsr_get_iop_rqbuffer(acb);
1148         iop_data=(u_int8_t *)prbuffer->data;
1149         iop_len=prbuffer->data_len;
1150         my_empty_len=(rqbuf_firstindex-rqbuf_lastindex-1)&(ARCMSR_MAX_QBUFFER-1);
1151         if(my_empty_len>=iop_len) {
1152                 while(iop_len > 0) {
1153                         pQbuffer=&acb->rqbuffer[rqbuf_lastindex];
1154                         memcpy(pQbuffer, iop_data, 1);
1155                         rqbuf_lastindex++;
1156                         rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;/*if last index number set it to 0 */
1157                         iop_data++;
1158                         iop_len--;
1159                 }
1160                 acb->rqbuf_lastindex=rqbuf_lastindex;
1161                 arcmsr_iop_message_read(acb);
1162                 /*signature, let IOP know data has been read */
1163         } else {
1164                 acb->acb_flags|=ACB_F_IOPDATA_OVERFLOW;
1165         }
1166         return;
1167 }
1168 /*
1169 **************************************************************************
1170 **************************************************************************
1171 */
1172 static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
1173 {
1174         acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READ;
1175         /*
1176         *****************************************************************
1177         **   check if there are any mail packages from user space program
1178         **   in my post bag, now is the time to send them into Areca's firmware
1179         *****************************************************************
1180         */
1181         if(acb->wqbuf_firstindex!=acb->wqbuf_lastindex) {
1182                 u_int8_t *pQbuffer;
1183                 struct QBUFFER *pwbuffer;
1184                 u_int8_t *iop_data;
1185                 int allxfer_len=0;
1186
1187                 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READ);
1188                 pwbuffer=arcmsr_get_iop_wqbuffer(acb);
1189                 iop_data=(u_int8_t *)pwbuffer->data;
1190                 while((acb->wqbuf_firstindex!=acb->wqbuf_lastindex)
1191                         && (allxfer_len<124)) {
1192                         pQbuffer=&acb->wqbuffer[acb->wqbuf_firstindex];
1193                         memcpy(iop_data, pQbuffer, 1);
1194                         acb->wqbuf_firstindex++;
1195                         acb->wqbuf_firstindex %=ARCMSR_MAX_QBUFFER; /*if last index number set it to 0 */
1196                         iop_data++;
1197                         allxfer_len++;
1198                 }
1199                 pwbuffer->data_len=allxfer_len;
1200                 /*
1201                 ** push inbound doorbell tell iop driver data write ok
1202                 ** and wait reply on next hwinterrupt for next Qbuffer post
1203                 */
1204                 arcmsr_iop_message_wrote(acb);
1205         }
1206         if(acb->wqbuf_firstindex==acb->wqbuf_lastindex) {
1207                 acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
1208         }
1209         return;
1210 }
1211 /*
1212 **************************************************************************
1213 **************************************************************************
1214 */
1215 static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb)
1216 {
1217         u_int32_t outbound_doorbell;
1218
1219         /*
1220         *******************************************************************
1221         **  Maybe here we need to check wrqbuffer_lock is lock or not
1222         **  DOORBELL: din! don!
1223         **  check if there are any mail need to pack from firmware
1224         *******************************************************************
1225         */
1226         outbound_doorbell=CHIP_REG_READ32(HBA_MessageUnit,
1227         0, outbound_doorbell);
1228         CHIP_REG_WRITE32(HBA_MessageUnit,
1229         0, outbound_doorbell, outbound_doorbell); /* clear doorbell interrupt */
1230         if(outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
1231                 arcmsr_iop2drv_data_wrote_handle(acb);
1232         }
1233         if(outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
1234                 arcmsr_iop2drv_data_read_handle(acb);
1235         }
1236         return;
1237 }
1238 /*
1239 **************************************************************************
1240 **************************************************************************
1241 */
1242 static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb)
1243 {
1244         u_int32_t flag_srb;
1245
1246         /*
1247         *****************************************************************************
1248         **               areca cdb command done
1249         *****************************************************************************
1250         */
1251         bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
1252                 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
1253         while((flag_srb=CHIP_REG_READ32(HBA_MessageUnit,
1254                 0, outbound_queueport)) != 0xFFFFFFFF) {
1255                 /* check if command done with no error*/
1256                 arcmsr_drain_donequeue(acb, flag_srb);
1257         }       /*drain reply FIFO*/
1258         return;
1259 }
1260 /*
1261 **************************************************************************
1262 **************************************************************************
1263 */
1264 static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
1265 {
1266         struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
1267         u_int32_t flag_srb;
1268         int index;
1269
1270         /*
1271         *****************************************************************************
1272         **               areca cdb command done
1273         *****************************************************************************
1274         */
1275         bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
1276                 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
1277         index=phbbmu->doneq_index;
1278         while((flag_srb=phbbmu->done_qbuffer[index]) != 0) {
1279                 phbbmu->done_qbuffer[index]=0;
1280                 index++;
1281                 index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
1282                 phbbmu->doneq_index=index;
1283                 /* check if command done with no error*/
1284                 arcmsr_drain_donequeue(acb, flag_srb);
1285         }       /*drain reply FIFO*/
1286         return;
1287 }
1288 /*
1289 **********************************************************************
1290 **********************************************************************
1291 */
1292 static void arcmsr_handle_hba_isr( struct AdapterControlBlock *acb)
1293 {
1294         u_int32_t outbound_intstatus;
1295         /*
1296         *********************************************
1297         **   check outbound intstatus
1298         *********************************************
1299         */
1300         outbound_intstatus=CHIP_REG_READ32(HBA_MessageUnit,
1301         0, outbound_intstatus) & acb->outbound_int_enable;
1302         if(!outbound_intstatus) {
1303                 /*it must be share irq*/
1304                 return;
1305         }
1306         CHIP_REG_WRITE32(HBA_MessageUnit,
1307         0, outbound_intstatus, outbound_intstatus);/*clear interrupt*/
1308         /* MU doorbell interrupts*/
1309         if(outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
1310                 arcmsr_hba_doorbell_isr(acb);
1311         }
1312         /* MU post queue interrupts*/
1313         if(outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
1314                 arcmsr_hba_postqueue_isr(acb);
1315         }
1316         return;
1317 }
1318 /*
1319 **********************************************************************
1320 **********************************************************************
1321 */
1322 static void arcmsr_handle_hbb_isr( struct AdapterControlBlock *acb)
1323 {
1324         u_int32_t outbound_doorbell;
1325         /*
1326         *********************************************
1327         **   check outbound intstatus
1328         *********************************************
1329         */
1330         outbound_doorbell=CHIP_REG_READ32(HBB_DOORBELL, 0, iop2drv_doorbell) & acb->outbound_int_enable;
1331         if(!outbound_doorbell) {
1332                 /*it must be share irq*/
1333                 return;
1334         }
1335         CHIP_REG_WRITE32(HBB_DOORBELL, 0, iop2drv_doorbell, ~outbound_doorbell); /* clear doorbell interrupt */
1336         CHIP_REG_READ32(HBB_DOORBELL, 0, iop2drv_doorbell);
1337         CHIP_REG_WRITE32(HBB_DOORBELL, 0, drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
1338         /* MU ioctl transfer doorbell interrupts*/
1339         if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
1340                 arcmsr_iop2drv_data_wrote_handle(acb);
1341         }
1342         if(outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) {
1343                 arcmsr_iop2drv_data_read_handle(acb);
1344         }
1345         /* MU post queue interrupts*/
1346         if(outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
1347                 arcmsr_hbb_postqueue_isr(acb);
1348         }
1349         return;
1350 }
1351 /*
1352 ******************************************************************************
1353 ******************************************************************************
1354 */
1355 static void arcmsr_interrupt(struct AdapterControlBlock *acb)
1356 {
1357         switch (acb->adapter_type) {
1358         case ACB_ADAPTER_TYPE_A:
1359                 arcmsr_handle_hba_isr(acb);
1360                 break;
1361         case ACB_ADAPTER_TYPE_B:
1362                 arcmsr_handle_hbb_isr(acb);
1363                 break;
1364         default:
1365                 printf("arcmsr%d: interrupt service,"
1366                 " unknow adapter type =%d\n", acb->pci_unit, acb->adapter_type);
1367                 break;
1368         }
1369         return;
1370 }
1371 /*
1372 *******************************************************************************
1373 **
1374 *******************************************************************************
1375 */
1376 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
1377 {
1378         if(acb!=NULL) {
1379                 /* stop adapter background rebuild */
1380                 if(acb->acb_flags & ACB_F_MSG_START_BGRB) {
1381                         arcmsr_stop_adapter_bgrb(acb);
1382                         arcmsr_flush_adapter_cache(acb);
1383                 }
1384         }
1385 }
1386 /*
1387 ***********************************************************************
1388 **
1389 ************************************************************************
1390 */
1391 u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg)
1392 {
1393         struct CMD_MESSAGE_FIELD * pcmdmessagefld;
1394         u_int32_t retvalue=EINVAL;
1395
1396         pcmdmessagefld=(struct CMD_MESSAGE_FIELD *) arg;
1397         if(memcmp(pcmdmessagefld->cmdmessage.Signature, "ARCMSR", 6)!=0) {
1398                 return retvalue;
1399         }
1400         ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1401         switch(ioctl_cmd) {
1402         case ARCMSR_MESSAGE_READ_RQBUFFER: {
1403                         u_int8_t * pQbuffer;
1404                         u_int8_t * ptmpQbuffer=pcmdmessagefld->messagedatabuffer;
1405                         u_int32_t allxfer_len=0;
1406
1407                         while((acb->rqbuf_firstindex!=acb->rqbuf_lastindex)
1408                                 && (allxfer_len<1031)) {
1409                                 /*copy READ QBUFFER to srb*/
1410                                 pQbuffer= &acb->rqbuffer[acb->rqbuf_firstindex];
1411                                 memcpy(ptmpQbuffer, pQbuffer, 1);
1412                                 acb->rqbuf_firstindex++;
1413                                 acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1414                                 /*if last index number set it to 0 */
1415                                 ptmpQbuffer++;
1416                                 allxfer_len++;
1417                         }
1418                         if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1419                                 struct QBUFFER * prbuffer;
1420                                 u_int8_t * iop_data;
1421                                 u_int32_t iop_len;
1422
1423                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1424                                 prbuffer=arcmsr_get_iop_rqbuffer(acb);
1425                                 iop_data=(u_int8_t *)prbuffer->data;
1426                                 iop_len=(u_int32_t)prbuffer->data_len;
1427                                 /*this iop data does no chance to make me overflow again here, so just do it*/
1428                                 while(iop_len>0) {
1429                                         pQbuffer= &acb->rqbuffer[acb->rqbuf_lastindex];
1430                                         memcpy(pQbuffer, iop_data, 1);
1431                                         acb->rqbuf_lastindex++;
1432                                         acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1433                                         /*if last index number set it to 0 */
1434                                         iop_data++;
1435                                         iop_len--;
1436                                 }
1437                                 arcmsr_iop_message_read(acb);
1438                                 /*signature, let IOP know data has been readed */
1439                         }
1440                         pcmdmessagefld->cmdmessage.Length=allxfer_len;
1441                         pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
1442                         retvalue=ARCMSR_MESSAGE_SUCCESS;
1443                 }
1444                 break;
1445         case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
1446                         u_int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
1447                         u_int8_t * pQbuffer;
1448                         u_int8_t * ptmpuserbuffer=pcmdmessagefld->messagedatabuffer;
1449
1450                         user_len=pcmdmessagefld->cmdmessage.Length;
1451                         /*check if data xfer length of this request will overflow my array qbuffer */
1452                         wqbuf_lastindex=acb->wqbuf_lastindex;
1453                         wqbuf_firstindex=acb->wqbuf_firstindex;
1454                         if(wqbuf_lastindex!=wqbuf_firstindex) {
1455                                 arcmsr_post_ioctldata2iop(acb);
1456                                 pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_ERROR;
1457                         } else {
1458                                 my_empty_len=(wqbuf_firstindex-wqbuf_lastindex-1)&(ARCMSR_MAX_QBUFFER-1);
1459                                 if(my_empty_len>=user_len) {
1460                                         while(user_len>0) {
1461                                                 /*copy srb data to wqbuffer*/
1462                                                 pQbuffer= &acb->wqbuffer[acb->wqbuf_lastindex];
1463                                                 memcpy(pQbuffer, ptmpuserbuffer, 1);
1464                                                 acb->wqbuf_lastindex++;
1465                                                 acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1466                                                 /*if last index number set it to 0 */
1467                                                 ptmpuserbuffer++;
1468                                                 user_len--;
1469                                         }
1470                                         /*post fist Qbuffer*/
1471                                         if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
1472                                                 acb->acb_flags &=~ACB_F_MESSAGE_WQBUFFER_CLEARED;
1473                                                 arcmsr_post_ioctldata2iop(acb);
1474                                         }
1475                                         pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
1476                                 } else {
1477                                         pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_ERROR;
1478                                 }
1479                         }
1480                         retvalue=ARCMSR_MESSAGE_SUCCESS;
1481                 }
1482                 break;
1483         case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
1484                         u_int8_t * pQbuffer=acb->rqbuffer;
1485
1486                         if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1487                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1488                                 arcmsr_iop_message_read(acb);
1489                                 /*signature, let IOP know data has been readed */
1490                         }
1491                         acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
1492                         acb->rqbuf_firstindex=0;
1493                         acb->rqbuf_lastindex=0;
1494                         memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1495                         pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
1496                         retvalue=ARCMSR_MESSAGE_SUCCESS;
1497                 }
1498                 break;
1499         case ARCMSR_MESSAGE_CLEAR_WQBUFFER:
1500                 {
1501                         u_int8_t * pQbuffer=acb->wqbuffer;
1502
1503                         if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1504                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1505                 arcmsr_iop_message_read(acb);
1506                                 /*signature, let IOP know data has been readed */
1507                         }
1508                         acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READ);
1509                         acb->wqbuf_firstindex=0;
1510                         acb->wqbuf_lastindex=0;
1511                         memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1512                         pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
1513                         retvalue=ARCMSR_MESSAGE_SUCCESS;
1514                 }
1515                 break;
1516         case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
1517                         u_int8_t * pQbuffer;
1518
1519                         if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1520                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1521                 arcmsr_iop_message_read(acb);
1522                                 /*signature, let IOP know data has been readed */
1523                         }
1524                         acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED
1525                                         |ACB_F_MESSAGE_RQBUFFER_CLEARED
1526                                         |ACB_F_MESSAGE_WQBUFFER_READ);
1527                         acb->rqbuf_firstindex=0;
1528                         acb->rqbuf_lastindex=0;
1529                         acb->wqbuf_firstindex=0;
1530                         acb->wqbuf_lastindex=0;
1531                         pQbuffer=acb->rqbuffer;
1532                         memset(pQbuffer, 0, sizeof(struct QBUFFER));
1533                         pQbuffer=acb->wqbuffer;
1534                         memset(pQbuffer, 0, sizeof(struct QBUFFER));
1535                         pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
1536                         retvalue=ARCMSR_MESSAGE_SUCCESS;
1537                 }
1538                 break;
1539         case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
1540                         pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_3F;
1541                         retvalue=ARCMSR_MESSAGE_SUCCESS;
1542                 }
1543                 break;
1544         case ARCMSR_MESSAGE_SAY_HELLO: {
1545                         u_int8_t * hello_string="Hello! I am ARCMSR";
1546                         u_int8_t * puserbuffer=(u_int8_t *)pcmdmessagefld->messagedatabuffer;
1547
1548                         if(memcpy(puserbuffer, hello_string, (int16_t)strlen(hello_string))) {
1549                                 pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_ERROR;
1550                                 ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1551                                 return ENOIOCTL;
1552                         }
1553                         pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
1554                         retvalue=ARCMSR_MESSAGE_SUCCESS;
1555                 }
1556                 break;
1557         case ARCMSR_MESSAGE_SAY_GOODBYE: {
1558                         arcmsr_iop_parking(acb);
1559                         retvalue=ARCMSR_MESSAGE_SUCCESS;
1560                 }
1561                 break;
1562         case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: {
1563                         arcmsr_flush_adapter_cache(acb);
1564                         retvalue=ARCMSR_MESSAGE_SUCCESS;
1565                 }
1566                 break;
1567         }
1568         ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1569         return retvalue;
1570 }
1571 /*
1572 **************************************************************************
1573 **************************************************************************
1574 */
1575 struct CommandControlBlock * arcmsr_get_freesrb(struct AdapterControlBlock *acb)
1576 {
1577         struct CommandControlBlock *srb=NULL;
1578         u_int32_t workingsrb_startindex, workingsrb_doneindex;
1579
1580 #if __FreeBSD_version < 700025
1581         ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
1582 #endif
1583         workingsrb_doneindex=acb->workingsrb_doneindex;
1584         workingsrb_startindex=acb->workingsrb_startindex;
1585         srb=acb->srbworkingQ[workingsrb_startindex];
1586         workingsrb_startindex++;
1587         workingsrb_startindex %= ARCMSR_MAX_FREESRB_NUM;
1588         if(workingsrb_doneindex!=workingsrb_startindex) {
1589                 acb->workingsrb_startindex=workingsrb_startindex;
1590         } else {
1591                 srb=NULL;
1592         }
1593 #if __FreeBSD_version < 700025
1594         ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
1595 #endif
1596         return(srb);
1597 }
1598 /*
1599 **************************************************************************
1600 **************************************************************************
1601 */
1602 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb * pccb)
1603 {
1604         struct CMD_MESSAGE_FIELD * pcmdmessagefld;
1605         int retvalue = 0, transfer_len = 0;
1606         char *buffer;
1607         u_int32_t controlcode = (u_int32_t ) pccb->csio.cdb_io.cdb_bytes[5] << 24 |
1608                                 (u_int32_t ) pccb->csio.cdb_io.cdb_bytes[6] << 16 |
1609                                 (u_int32_t ) pccb->csio.cdb_io.cdb_bytes[7] << 8  |
1610                                 (u_int32_t ) pccb->csio.cdb_io.cdb_bytes[8];
1611                                         /* 4 bytes: Areca io control code */
1612         if((pccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
1613                 buffer = pccb->csio.data_ptr;
1614                 transfer_len = pccb->csio.dxfer_len;
1615         } else {
1616                 retvalue = ARCMSR_MESSAGE_FAIL;
1617                 goto message_out;
1618         }
1619         if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
1620                 retvalue = ARCMSR_MESSAGE_FAIL;
1621                 goto message_out;
1622         }
1623         pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
1624         switch(controlcode) {
1625         case ARCMSR_MESSAGE_READ_RQBUFFER: {
1626                         u_int8_t *pQbuffer;
1627                         u_int8_t *ptmpQbuffer=pcmdmessagefld->messagedatabuffer;
1628                         int32_t allxfer_len = 0;
1629
1630                         while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
1631                                 && (allxfer_len < 1031)) {
1632                                 pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
1633                                 memcpy(ptmpQbuffer, pQbuffer, 1);
1634                                 acb->rqbuf_firstindex++;
1635                                 acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
1636                                 ptmpQbuffer++;
1637                                 allxfer_len++;
1638                         }
1639                         if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1640                                 struct QBUFFER  *prbuffer;
1641                                 u_int8_t  *iop_data;
1642                                 int32_t iop_len;
1643
1644                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1645                                 prbuffer=arcmsr_get_iop_rqbuffer(acb);
1646                                 iop_data = (u_int8_t *)prbuffer->data;
1647                                 iop_len =(u_int32_t)prbuffer->data_len;
1648                                 while (iop_len > 0) {
1649                                 pQbuffer= &acb->rqbuffer[acb->rqbuf_lastindex];
1650                                         memcpy(pQbuffer, iop_data, 1);
1651                                         acb->rqbuf_lastindex++;
1652                                         acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1653                                         iop_data++;
1654                                         iop_len--;
1655                                 }
1656                                 arcmsr_iop_message_read(acb);
1657                         }
1658                         pcmdmessagefld->cmdmessage.Length = allxfer_len;
1659                         pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
1660                         retvalue=ARCMSR_MESSAGE_SUCCESS;
1661                 }
1662                 break;
1663         case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
1664                         int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
1665                         u_int8_t *pQbuffer;
1666                         u_int8_t *ptmpuserbuffer=pcmdmessagefld->messagedatabuffer;
1667
1668                         user_len = pcmdmessagefld->cmdmessage.Length;
1669                         wqbuf_lastindex = acb->wqbuf_lastindex;
1670                         wqbuf_firstindex = acb->wqbuf_firstindex;
1671                         if (wqbuf_lastindex != wqbuf_firstindex) {
1672                                 arcmsr_post_ioctldata2iop(acb);
1673                                 /* has error report sensedata */
1674                             if(&pccb->csio.sense_data) {
1675                                 ((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
1676                                 /* Valid,ErrorCode */
1677                                 ((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
1678                                 /* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
1679                                 ((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
1680                                 /* AdditionalSenseLength */
1681                                 ((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
1682                                 /* AdditionalSenseCode */
1683                                 }
1684                                 retvalue = ARCMSR_MESSAGE_FAIL;
1685                         } else {
1686                                 my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
1687                                                 &(ARCMSR_MAX_QBUFFER - 1);
1688                                 if (my_empty_len >= user_len) {
1689                                         while (user_len > 0) {
1690                                                 pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
1691                                                 memcpy(pQbuffer, ptmpuserbuffer, 1);
1692                                                 acb->wqbuf_lastindex++;
1693                                                 acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
1694                                                 ptmpuserbuffer++;
1695                                                 user_len--;
1696                                         }
1697                                         if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
1698                                                 acb->acb_flags &=
1699                                                 ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
1700                                                 arcmsr_post_ioctldata2iop(acb);
1701                                         }
1702                                 } else {
1703                                         /* has error report sensedata */
1704                                         if(&pccb->csio.sense_data) {
1705                                         ((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
1706                                         /* Valid,ErrorCode */
1707                                         ((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
1708                                         /* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
1709                                         ((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
1710                                         /* AdditionalSenseLength */
1711                                         ((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
1712                                         /* AdditionalSenseCode */
1713                                         }
1714                                         retvalue = ARCMSR_MESSAGE_FAIL;
1715                                 }
1716                         }
1717                 }
1718                 break;
1719         case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
1720                         u_int8_t *pQbuffer = acb->rqbuffer;
1721
1722                         if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1723                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1724                                 arcmsr_iop_message_read(acb);
1725                         }
1726                         acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
1727                         acb->rqbuf_firstindex = 0;
1728                         acb->rqbuf_lastindex = 0;
1729                         memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1730                         pcmdmessagefld->cmdmessage.ReturnCode =
1731                         ARCMSR_MESSAGE_RETURNCODE_OK;
1732                 }
1733                 break;
1734         case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
1735                         u_int8_t *pQbuffer = acb->wqbuffer;
1736
1737                         if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1738                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1739                                 arcmsr_iop_message_read(acb);
1740                         }
1741                         acb->acb_flags |=
1742                                 (ACB_F_MESSAGE_WQBUFFER_CLEARED |
1743                                         ACB_F_MESSAGE_WQBUFFER_READ);
1744                         acb->wqbuf_firstindex = 0;
1745                         acb->wqbuf_lastindex = 0;
1746                         memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
1747                         pcmdmessagefld->cmdmessage.ReturnCode =
1748                                 ARCMSR_MESSAGE_RETURNCODE_OK;
1749                 }
1750                 break;
1751         case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
1752                         u_int8_t *pQbuffer;
1753
1754                         if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
1755                                 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
1756                                 arcmsr_iop_message_read(acb);
1757                         }
1758                         acb->acb_flags |=
1759                                 (ACB_F_MESSAGE_WQBUFFER_CLEARED
1760                                 | ACB_F_MESSAGE_RQBUFFER_CLEARED
1761                                 | ACB_F_MESSAGE_WQBUFFER_READ);
1762                         acb->rqbuf_firstindex = 0;
1763                         acb->rqbuf_lastindex = 0;
1764                         acb->wqbuf_firstindex = 0;
1765                         acb->wqbuf_lastindex = 0;
1766                         pQbuffer = acb->rqbuffer;
1767                         memset(pQbuffer, 0, sizeof (struct QBUFFER));
1768                         pQbuffer = acb->wqbuffer;
1769                         memset(pQbuffer, 0, sizeof (struct QBUFFER));
1770                         pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
1771                 }
1772                 break;
1773         case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
1774                         pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
1775                 }
1776                 break;
1777         case ARCMSR_MESSAGE_SAY_HELLO: {
1778                         int8_t * hello_string = "Hello! I am ARCMSR";
1779
1780                         memcpy(pcmdmessagefld->messagedatabuffer, hello_string
1781                                 , (int16_t)strlen(hello_string));
1782                         pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
1783                 }
1784                 break;
1785         case ARCMSR_MESSAGE_SAY_GOODBYE:
1786                 arcmsr_iop_parking(acb);
1787                 break;
1788         case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
1789                 arcmsr_flush_adapter_cache(acb);
1790                 break;
1791         default:
1792                 retvalue = ARCMSR_MESSAGE_FAIL;
1793         }
1794 message_out:
1795         return retvalue;
1796 }
1797 /*
1798 *********************************************************************
1799 *********************************************************************
1800 */
1801 static void arcmsr_executesrb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1802 {
1803         struct CommandControlBlock *srb=(struct CommandControlBlock *)arg;
1804         struct AdapterControlBlock *acb=(struct AdapterControlBlock *)srb->acb;
1805         union ccb * pccb;
1806         int target, lun;
1807
1808         pccb=srb->pccb;
1809         target=pccb->ccb_h.target_id;
1810         lun=pccb->ccb_h.target_lun;
1811         if(error != 0) {
1812                 if(error != EFBIG) {
1813                         printf("arcmsr%d: unexpected error %x"
1814                                 " returned from 'bus_dmamap_load' \n"
1815                                 , acb->pci_unit, error);
1816                 }
1817                 if((pccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1818                         pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
1819                 }
1820                 arcmsr_srb_complete(srb, 0);
1821                 return;
1822         }
1823         if(nseg > ARCMSR_MAX_SG_ENTRIES) {
1824                 pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
1825                 arcmsr_srb_complete(srb, 0);
1826                 return;
1827         }
1828         if(acb->acb_flags & ACB_F_BUS_RESET) {
1829                 printf("arcmsr%d: bus reset and return busy \n", acb->pci_unit);
1830                 pccb->ccb_h.status |= CAM_SCSI_BUS_RESET;
1831                 arcmsr_srb_complete(srb, 0);
1832                 return;
1833         }
1834         if(acb->devstate[target][lun]==ARECA_RAID_GONE) {
1835                 u_int8_t block_cmd;
1836
1837                 block_cmd=pccb->csio.cdb_io.cdb_bytes[0] & 0x0f;
1838                 if(block_cmd==0x08 || block_cmd==0x0a) {
1839                         printf("arcmsr%d:block 'read/write' command"
1840                                 "with gone raid volume Cmd=%2x, TargetId=%d, Lun=%d \n"
1841                                 , acb->pci_unit, block_cmd, target, lun);
1842                         pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
1843                         arcmsr_srb_complete(srb, 0);
1844                         return;
1845                 }
1846         }
1847         if((pccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1848                 if(nseg != 0) {
1849                         bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
1850                 }
1851                 arcmsr_srb_complete(srb, 0);
1852                 return;
1853         }
1854         if(acb->srboutstandingcount >= ARCMSR_MAX_OUTSTANDING_CMD) {
1855                 xpt_freeze_simq(acb->psim, 1);
1856                 pccb->ccb_h.status = CAM_REQUEUE_REQ;
1857                 acb->acb_flags |= ACB_F_CAM_DEV_QFRZN;
1858                 arcmsr_srb_complete(srb, 0);
1859                 return;
1860         }
1861         pccb->ccb_h.status |= CAM_SIM_QUEUED;
1862         arcmsr_build_srb(srb, dm_segs, nseg);
1863         arcmsr_post_srb(acb, srb);
1864         return;
1865 }
1866 /*
1867 *****************************************************************************************
1868 *****************************************************************************************
1869 */
1870 static u_int8_t arcmsr_seek_cmd2abort(union ccb * abortccb)
1871 {
1872         struct CommandControlBlock *srb;
1873         struct AdapterControlBlock *acb=(struct AdapterControlBlock *) abortccb->ccb_h.arcmsr_ccbacb_ptr;
1874         u_int32_t intmask_org;
1875         int i=0;
1876
1877         acb->num_aborts++;
1878         /*
1879         ***************************************************************************
1880         ** It is the upper layer do abort command this lock just prior to calling us.
1881         ** First determine if we currently own this command.
1882         ** Start by searching the device queue. If not found
1883         ** at all, and the system wanted us to just abort the
1884         ** command return success.
1885         ***************************************************************************
1886         */
1887         if(acb->srboutstandingcount!=0) {
1888                 for(i=0;i<ARCMSR_MAX_FREESRB_NUM;i++) {
1889                         srb=acb->psrb_pool[i];
1890                         if(srb->startdone==ARCMSR_SRB_START) {
1891                                 if(srb->pccb==abortccb) {
1892                                         srb->startdone=ARCMSR_SRB_ABORTED;
1893                                         printf("arcmsr%d:scsi id=%d lun=%d abort srb '%p'"
1894                                                 "outstanding command \n"
1895                                                 , acb->pci_unit, abortccb->ccb_h.target_id
1896                                                 , abortccb->ccb_h.target_lun, srb);
1897                                         goto abort_outstanding_cmd;
1898                                 }
1899                         }
1900                 }
1901         }
1902         return(FALSE);
1903 abort_outstanding_cmd:
1904         /* disable all outbound interrupt */
1905         intmask_org=arcmsr_disable_allintr(acb);
1906         arcmsr_polling_srbdone(acb, srb);
1907         /* enable outbound Post Queue, outbound doorbell Interrupt */
1908         arcmsr_enable_allintr(acb, intmask_org);
1909         return (TRUE);
1910 }
1911 /*
1912 ****************************************************************************
1913 ****************************************************************************
1914 */
1915 static void arcmsr_bus_reset(struct AdapterControlBlock *acb)
1916 {
1917         int retry=0;
1918
1919         acb->num_resets++;
1920         acb->acb_flags |=ACB_F_BUS_RESET;
1921         while(acb->srboutstandingcount!=0 && retry < 400) {
1922                 arcmsr_interrupt(acb);
1923                 UDELAY(25000);
1924                 retry++;
1925         }
1926         arcmsr_iop_reset(acb);
1927         acb->acb_flags &= ~ACB_F_BUS_RESET;
1928         return;
1929 }
1930 /*
1931 **************************************************************************
1932 **************************************************************************
1933 */
1934 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
1935                 union ccb * pccb)
1936 {
1937         pccb->ccb_h.status |= CAM_REQ_CMP;
1938         switch (pccb->csio.cdb_io.cdb_bytes[0]) {
1939         case INQUIRY: {
1940                 unsigned char inqdata[36];
1941                 char *buffer=pccb->csio.data_ptr;;
1942
1943                 if (pccb->ccb_h.target_lun) {
1944                         pccb->ccb_h.status |= CAM_SEL_TIMEOUT;
1945                         xpt_done(pccb);
1946                         return;
1947                 }
1948                 inqdata[0] = T_PROCESSOR;
1949                 /* Periph Qualifier & Periph Dev Type */
1950                 inqdata[1] = 0;
1951                 /* rem media bit & Dev Type Modifier */
1952                 inqdata[2] = 0;
1953                 /* ISO, ECMA, & ANSI versions */
1954                 inqdata[4] = 31;
1955                 /* length of additional data */
1956                 strncpy(&inqdata[8], "Areca   ", 8);
1957                 /* Vendor Identification */
1958                 strncpy(&inqdata[16], "RAID controller ", 16);
1959                 /* Product Identification */
1960                 strncpy(&inqdata[32], "R001", 4); /* Product Revision */
1961                 memcpy(buffer, inqdata, sizeof(inqdata));
1962                 xpt_done(pccb);
1963         }
1964         break;
1965         case WRITE_BUFFER:
1966         case READ_BUFFER: {
1967                 if (arcmsr_iop_message_xfer(acb, pccb)) {
1968                         pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
1969                         pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
1970                 }
1971                 xpt_done(pccb);
1972         }
1973         break;
1974         default:
1975                 xpt_done(pccb);
1976         }
1977 }
1978 /*
1979 *********************************************************************
1980 *********************************************************************
1981 */
1982 static void arcmsr_action(struct cam_sim * psim, union ccb * pccb)
1983 {
1984         struct AdapterControlBlock *  acb;
1985
1986         acb=(struct AdapterControlBlock *) cam_sim_softc(psim);
1987         if(acb==NULL) {
1988                 pccb->ccb_h.status |= CAM_REQ_INVALID;
1989                 xpt_done(pccb);
1990                 return;
1991         }
1992         switch (pccb->ccb_h.func_code) {
1993         case XPT_SCSI_IO: {
1994                         struct CommandControlBlock *srb;
1995                         int target=pccb->ccb_h.target_id;
1996
1997                         if(target == 16) {
1998                                 /* virtual device for iop message transfer */
1999                                 arcmsr_handle_virtual_command(acb, pccb);
2000                                 return;
2001                         }
2002                         if((srb=arcmsr_get_freesrb(acb)) == NULL) {
2003                                 pccb->ccb_h.status |= CAM_RESRC_UNAVAIL;
2004                                 xpt_done(pccb);
2005                                 return;
2006                         }
2007                         pccb->ccb_h.arcmsr_ccbsrb_ptr=srb;
2008                         pccb->ccb_h.arcmsr_ccbacb_ptr=acb;
2009                         srb->pccb=pccb;
2010                         if((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2011                                 if(!(pccb->ccb_h.flags & CAM_SCATTER_VALID)) {
2012                                         /* Single buffer */
2013                                         if(!(pccb->ccb_h.flags & CAM_DATA_PHYS)) {
2014                                                 /* Buffer is virtual */
2015                                                 u_int32_t error, s;
2016
2017                                                 s=splsoftvm();
2018                                                 error = bus_dmamap_load(acb->dm_segs_dmat
2019                                                         , srb->dm_segs_dmamap
2020                                                         , pccb->csio.data_ptr
2021                                                         , pccb->csio.dxfer_len
2022                                                         , arcmsr_executesrb, srb, /*flags*/0);
2023                                                 if(error == EINPROGRESS) {
2024                                                         xpt_freeze_simq(acb->psim, 1);
2025                                                         pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2026                                                 }
2027                                                 splx(s);
2028                                         } else {
2029                                                 /* Buffer is physical */
2030                                                 panic("arcmsr: CAM_DATA_PHYS not supported");
2031                                         }
2032                                 } else {
2033                                         /* Scatter/gather list */
2034                                         struct bus_dma_segment *segs;
2035
2036                                         if((pccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0
2037                                         || (pccb->ccb_h.flags & CAM_DATA_PHYS) != 0) {
2038                                                 pccb->ccb_h.status |= CAM_PROVIDE_FAIL;
2039                                                 xpt_done(pccb);
2040                                                 free(srb, M_DEVBUF);
2041                                                 return;
2042                                         }
2043                                         segs=(struct bus_dma_segment *)pccb->csio.data_ptr;
2044                                         arcmsr_executesrb(srb, segs, pccb->csio.sglist_cnt, 0);
2045                                 }
2046                         } else {
2047                                 arcmsr_executesrb(srb, NULL, 0, 0);
2048                         }
2049                         break;
2050                 }
2051         case XPT_TARGET_IO: {
2052                         /* target mode not yet support vendor specific commands. */
2053                         pccb->ccb_h.status |= CAM_REQ_CMP;
2054                         xpt_done(pccb);
2055                         break;
2056                 }
2057         case XPT_PATH_INQ: {
2058                         struct ccb_pathinq *cpi= &pccb->cpi;
2059
2060                         cpi->version_num=1;
2061                         cpi->hba_inquiry=PI_SDTR_ABLE | PI_TAG_ABLE;
2062                         cpi->target_sprt=0;
2063                         cpi->hba_misc=0;
2064                         cpi->hba_eng_cnt=0;
2065                         cpi->max_target=ARCMSR_MAX_TARGETID;        /* 0-16 */
2066                         cpi->max_lun=ARCMSR_MAX_TARGETLUN;          /* 0-7 */
2067                         cpi->initiator_id=ARCMSR_SCSI_INITIATOR_ID; /* 255 */
2068                         cpi->bus_id=cam_sim_bus(psim);
2069                         strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2070                         strncpy(cpi->hba_vid, "ARCMSR", HBA_IDLEN);
2071                         strncpy(cpi->dev_name, cam_sim_name(psim), DEV_IDLEN);
2072                         cpi->unit_number=cam_sim_unit(psim);
2073                 #ifdef  CAM_NEW_TRAN_CODE
2074                         cpi->transport = XPORT_SPI;
2075                         cpi->transport_version = 2;
2076                         cpi->protocol = PROTO_SCSI;
2077                         cpi->protocol_version = SCSI_REV_2;
2078                 #endif
2079                         cpi->ccb_h.status |= CAM_REQ_CMP;
2080                         xpt_done(pccb);
2081                         break;
2082                 }
2083         case XPT_ABORT: {
2084                         union ccb *pabort_ccb;
2085
2086                         pabort_ccb=pccb->cab.abort_ccb;
2087                         switch (pabort_ccb->ccb_h.func_code) {
2088                         case XPT_ACCEPT_TARGET_IO:
2089                         case XPT_IMMED_NOTIFY:
2090                         case XPT_CONT_TARGET_IO:
2091                                 if(arcmsr_seek_cmd2abort(pabort_ccb)==TRUE) {
2092                                         pabort_ccb->ccb_h.status |= CAM_REQ_ABORTED;
2093                                         xpt_done(pabort_ccb);
2094                                         pccb->ccb_h.status |= CAM_REQ_CMP;
2095                                 } else {
2096                                         xpt_print_path(pabort_ccb->ccb_h.path);
2097                                         printf("Not found\n");
2098                                         pccb->ccb_h.status |= CAM_PATH_INVALID;
2099                                 }
2100                                 break;
2101                         case XPT_SCSI_IO:
2102                                 pccb->ccb_h.status |= CAM_UA_ABORT;
2103                                 break;
2104                         default:
2105                                 pccb->ccb_h.status |= CAM_REQ_INVALID;
2106                                 break;
2107                         }
2108                         xpt_done(pccb);
2109                         break;
2110                 }
2111         case XPT_RESET_BUS:
2112         case XPT_RESET_DEV: {
2113                         u_int32_t     i;
2114
2115                         arcmsr_bus_reset(acb);
2116                         for (i=0; i < 500; i++) {
2117                                 DELAY(1000);
2118                         }
2119                         pccb->ccb_h.status |= CAM_REQ_CMP;
2120                         xpt_done(pccb);
2121                         break;
2122                 }
2123         case XPT_TERM_IO: {
2124                         pccb->ccb_h.status |= CAM_REQ_INVALID;
2125                         xpt_done(pccb);
2126                         break;
2127                 }
2128         case XPT_GET_TRAN_SETTINGS: {
2129                         struct ccb_trans_settings *cts;
2130
2131                         if(pccb->ccb_h.target_id == 16) {
2132                                 pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
2133                                 xpt_done(pccb);
2134                                 break;
2135                         }
2136                         cts= &pccb->cts;
2137                 #ifdef  CAM_NEW_TRAN_CODE
2138                         {
2139                                 struct ccb_trans_settings_scsi *scsi;
2140                                 struct ccb_trans_settings_spi *spi;
2141
2142                                 scsi = &cts->proto_specific.scsi;
2143                                 spi = &cts->xport_specific.spi;
2144                                 cts->protocol = PROTO_SCSI;
2145                                 cts->protocol_version = SCSI_REV_2;
2146                                 cts->transport = XPORT_SPI;
2147                                 cts->transport_version = 2;
2148                                 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2149                                 spi->sync_period=3;
2150                                 spi->sync_offset=32;
2151                                 spi->bus_width=MSG_EXT_WDTR_BUS_16_BIT;
2152                                 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2153                                 spi->valid = CTS_SPI_VALID_DISC
2154                                         | CTS_SPI_VALID_SYNC_RATE
2155                                         | CTS_SPI_VALID_SYNC_OFFSET
2156                                         | CTS_SPI_VALID_BUS_WIDTH;
2157                                 scsi->valid = CTS_SCSI_VALID_TQ;
2158                         }
2159                 #else
2160                         {
2161                                 cts->flags=(CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB);
2162                                 cts->sync_period=3;
2163                                 cts->sync_offset=32;
2164                                 cts->bus_width=MSG_EXT_WDTR_BUS_16_BIT;
2165                                 cts->valid=CCB_TRANS_SYNC_RATE_VALID |
2166                                 CCB_TRANS_SYNC_OFFSET_VALID |
2167                                 CCB_TRANS_BUS_WIDTH_VALID |
2168                                 CCB_TRANS_DISC_VALID |
2169                                 CCB_TRANS_TQ_VALID;
2170                         }
2171                 #endif
2172                         pccb->ccb_h.status |= CAM_REQ_CMP;
2173                         xpt_done(pccb);
2174                         break;
2175                 }
2176         case XPT_SET_TRAN_SETTINGS: {
2177                         pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
2178                         xpt_done(pccb);
2179                         break;
2180                 }
2181         case XPT_CALC_GEOMETRY: {
2182                         struct ccb_calc_geometry *ccg;
2183                         u_int32_t size_mb;
2184                         u_int32_t secs_per_cylinder;
2185
2186                         if(pccb->ccb_h.target_id == 16) {
2187                                 pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
2188                                 xpt_done(pccb);
2189                                 break;
2190                         }
2191                         ccg= &pccb->ccg;
2192                         if (ccg->block_size == 0) {
2193                                 pccb->ccb_h.status = CAM_REQ_INVALID;
2194                                 xpt_done(pccb);
2195                                 break;
2196                         }
2197                         if(((1024L * 1024L)/ccg->block_size) < 0) {
2198                                 pccb->ccb_h.status = CAM_REQ_INVALID;
2199                                 xpt_done(pccb);
2200                                 break;
2201                         }
2202                         size_mb=ccg->volume_size/((1024L * 1024L)/ccg->block_size);
2203                         if(size_mb > 1024 ) {
2204                                 ccg->heads=255;
2205                                 ccg->secs_per_track=63;
2206                         } else {
2207                                 ccg->heads=64;
2208                                 ccg->secs_per_track=32;
2209                         }
2210                         secs_per_cylinder=ccg->heads * ccg->secs_per_track;
2211                         ccg->cylinders=ccg->volume_size / secs_per_cylinder;
2212                         pccb->ccb_h.status |= CAM_REQ_CMP;
2213                         xpt_done(pccb);
2214                         break;
2215                 }
2216         default:
2217                 pccb->ccb_h.status |= CAM_REQ_INVALID;
2218                 xpt_done(pccb);
2219                 break;
2220         }
2221         return;
2222 }
2223 /*
2224 **********************************************************************
2225 **********************************************************************
2226 */
2227 static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
2228 {
2229         acb->acb_flags |= ACB_F_MSG_START_BGRB;
2230         CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
2231         if(!arcmsr_hba_wait_msgint_ready(acb)) {
2232                 printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
2233         }
2234         return;
2235 }
2236 /*
2237 **********************************************************************
2238 **********************************************************************
2239 */
2240 static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb)
2241 {
2242         acb->acb_flags |= ACB_F_MSG_START_BGRB;
2243         CHIP_REG_WRITE32(HBB_DOORBELL,
2244         0, drv2iop_doorbell,  ARCMSR_MESSAGE_START_BGRB);
2245         if(!arcmsr_hbb_wait_msgint_ready(acb)) {
2246                 printf( "arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
2247         }
2248         return;
2249 }
2250 /*
2251 **********************************************************************
2252 **********************************************************************
2253 */
2254 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
2255 {
2256         switch (acb->adapter_type) {
2257         case ACB_ADAPTER_TYPE_A:
2258                 arcmsr_start_hba_bgrb(acb);
2259                 break;
2260         case ACB_ADAPTER_TYPE_B:
2261                 arcmsr_start_hbb_bgrb(acb);
2262                 break;
2263         }
2264         return;
2265 }
2266 /*
2267 **********************************************************************
2268 **
2269 **********************************************************************
2270 */
2271 static void arcmsr_polling_hba_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
2272 {
2273         struct CommandControlBlock *srb;
2274         u_int32_t flag_srb, outbound_intstatus, poll_srb_done=0, poll_count=0;
2275
2276 polling_ccb_retry:
2277         poll_count++;
2278         outbound_intstatus=CHIP_REG_READ32(HBA_MessageUnit,
2279         0, outbound_intstatus) & acb->outbound_int_enable;
2280         CHIP_REG_WRITE32(HBA_MessageUnit,
2281         0, outbound_intstatus, outbound_intstatus);/*clear interrupt*/
2282         bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2283         while(1) {
2284                 if((flag_srb=CHIP_REG_READ32(HBA_MessageUnit,
2285                         0, outbound_queueport))==0xFFFFFFFF) {
2286                         if(poll_srb_done) {
2287                                 break;/*chip FIFO no ccb for completion already*/
2288                         } else {
2289                                 UDELAY(25000);
2290                                 if(poll_count > 100) {
2291                                         break;
2292                                 }
2293                                 goto polling_ccb_retry;
2294                         }
2295                 }
2296                 /* check ifcommand done with no error*/
2297                 srb=(struct CommandControlBlock *)
2298                         (acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
2299                 poll_srb_done = (srb==poll_srb) ? 1:0;
2300                 if((srb->acb!=acb) || (srb->startdone!=ARCMSR_SRB_START)) {
2301                         if(srb->startdone==ARCMSR_SRB_ABORTED) {
2302                                 printf("arcmsr%d: scsi id=%d lun=%d srb='%p'"
2303                                         "poll command abort successfully \n"
2304                                         , acb->pci_unit
2305                                         , srb->pccb->ccb_h.target_id
2306                                         , srb->pccb->ccb_h.target_lun, srb);
2307                                 srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
2308                                 arcmsr_srb_complete(srb, 1);
2309                                 continue;
2310                         }
2311                         printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
2312                                 "srboutstandingcount=%d \n"
2313                                 , acb->pci_unit
2314                                 , srb, acb->srboutstandingcount);
2315                         continue;
2316                 }
2317                 arcmsr_report_srb_state(acb, srb, flag_srb);
2318         }       /*drain reply FIFO*/
2319         return;
2320 }
2321 /*
2322 **********************************************************************
2323 **
2324 **********************************************************************
2325 */
2326 static void arcmsr_polling_hbb_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
2327 {
2328         struct HBB_MessageUnit *phbbmu=(struct HBB_MessageUnit *)acb->pmu;
2329         struct CommandControlBlock *srb;
2330         u_int32_t flag_srb, poll_srb_done=0, poll_count=0;
2331         int index;
2332
2333 polling_ccb_retry:
2334         poll_count++;
2335         CHIP_REG_WRITE32(HBB_DOORBELL,
2336         0, iop2drv_doorbell, ARCMSR_DOORBELL_INT_CLEAR_PATTERN); /* clear doorbell interrupt */
2337         bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
2338         while(1) {
2339                 index=phbbmu->doneq_index;
2340                 if((flag_srb=phbbmu->done_qbuffer[index]) == 0) {
2341                         if(poll_srb_done) {
2342                                 break;/*chip FIFO no ccb for completion already*/
2343                         } else {
2344                                 UDELAY(25000);
2345                                 if(poll_count > 100) {
2346                                         break;
2347                                 }
2348                                 goto polling_ccb_retry;
2349                         }
2350                 }
2351                 phbbmu->done_qbuffer[index]=0;
2352                 index++;
2353                 index %= ARCMSR_MAX_HBB_POSTQUEUE;     /*if last index number set it to 0 */
2354                 phbbmu->doneq_index=index;
2355                 /* check if command done with no error*/
2356                 srb=(struct CommandControlBlock *)
2357                         (acb->vir2phy_offset+(flag_srb << 5));/*frame must be 32 bytes aligned*/
2358                 poll_srb_done = (srb==poll_srb) ? 1:0;
2359                 if((srb->acb!=acb) || (srb->startdone!=ARCMSR_SRB_START)) {
2360                         if(srb->startdone==ARCMSR_SRB_ABORTED) {
2361                                 printf("arcmsr%d: scsi id=%d lun=%d srb='%p'"
2362                                         "poll command abort successfully \n"
2363                                         , acb->pci_unit
2364                                         , srb->pccb->ccb_h.target_id
2365                                         , srb->pccb->ccb_h.target_lun, srb);
2366                                 srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
2367                                 arcmsr_srb_complete(srb, 1);
2368                                 continue;
2369                         }
2370                         printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
2371                                 "srboutstandingcount=%d \n"
2372                                 , acb->pci_unit
2373                                 , srb, acb->srboutstandingcount);
2374                         continue;
2375                 }
2376                 arcmsr_report_srb_state(acb, srb, flag_srb);
2377         }       /*drain reply FIFO*/
2378         return;
2379 }
2380 /*
2381 **********************************************************************
2382 **********************************************************************
2383 */
2384 static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
2385 {
2386         switch (acb->adapter_type) {
2387         case ACB_ADAPTER_TYPE_A: {
2388                         arcmsr_polling_hba_srbdone(acb, poll_srb);
2389                 }
2390                 break;
2391         case ACB_ADAPTER_TYPE_B: {
2392                         arcmsr_polling_hbb_srbdone(acb, poll_srb);
2393                 }
2394                 break;
2395         }
2396 }
2397 /*
2398 **********************************************************************
2399 **********************************************************************
2400 */
2401 static void arcmsr_get_hba_config(struct AdapterControlBlock *acb)
2402 {
2403         char *acb_firm_model=acb->firm_model;
2404         char *acb_firm_version=acb->firm_version;
2405         size_t iop_firm_model=offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[15]);   /*firm_model,15,60-67*/
2406         size_t iop_firm_version=offsetof(struct HBA_MessageUnit,msgcode_rwbuffer[17]); /*firm_version,17,68-83*/
2407         int i;
2408
2409         CHIP_REG_WRITE32(HBA_MessageUnit, 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
2410         if(!arcmsr_hba_wait_msgint_ready(acb)) {
2411                 printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n"
2412                         , acb->pci_unit);
2413         }
2414         i=0;
2415         while(i<8) {
2416                 *acb_firm_model=bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_model+i);
2417                 /* 8 bytes firm_model, 15, 60-67*/
2418                 acb_firm_model++;
2419                 i++;
2420         }
2421         i=0;
2422         while(i<16) {
2423                 *acb_firm_version=bus_space_read_1(acb->btag[0], acb->bhandle[0], iop_firm_version+i);
2424                 /* 16 bytes firm_version, 17, 68-83*/
2425                 acb_firm_version++;
2426                 i++;
2427         }
2428         printf("ARECA RAID ADAPTER%d: %s \n", acb->pci_unit, ARCMSR_DRIVER_VERSION);
2429         printf("ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n", acb->pci_unit, acb->firm_version);
2430         acb->firm_request_len=CHIP_REG_READ32(HBA_MessageUnit,
2431                 0, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
2432         acb->firm_numbers_queue=CHIP_REG_READ32(HBA_MessageUnit,
2433                 0, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
2434         acb->firm_sdram_size=CHIP_REG_READ32(HBA_MessageUnit,
2435                 0, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
2436         acb->firm_ide_channels=CHIP_REG_READ32(HBA_MessageUnit,
2437                 0, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
2438         return;
2439 }
2440 /*
2441 **********************************************************************
2442 **********************************************************************
2443 */
2444 static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
2445 {
2446         char *acb_firm_model=acb->firm_model;
2447         char *acb_firm_version=acb->firm_version;
2448         size_t iop_firm_model=offsetof(struct HBB_RWBUFFER,
2449                         msgcode_rwbuffer[15]);   /*firm_model,15,60-67*/
2450         size_t iop_firm_version=offsetof(struct HBB_RWBUFFER,
2451                         msgcode_rwbuffer[17]); /*firm_version,17,68-83*/
2452         int i;
2453
2454         CHIP_REG_WRITE32(HBB_DOORBELL,
2455         0, drv2iop_doorbell, ARCMSR_MESSAGE_GET_CONFIG);
2456         if(!arcmsr_hbb_wait_msgint_ready(acb)) {
2457                 printf( "arcmsr%d: wait"
2458                         "'get adapter firmware miscellaneous data' timeout \n", acb->pci_unit);
2459         }
2460         i=0;
2461         while(i<8) {
2462                 *acb_firm_model=bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_model+i);
2463                 /* 8 bytes firm_model, 15, 60-67*/
2464                 acb_firm_model++;
2465                 i++;
2466         }
2467         i=0;
2468         while(i<16) {
2469                 *acb_firm_version=bus_space_read_1(acb->btag[1], acb->bhandle[1], iop_firm_version+i);
2470                 /* 16 bytes firm_version, 17, 68-83*/
2471                 acb_firm_version++;
2472                 i++;
2473         }
2474         printf("ARECA RAID ADAPTER%d: %s \n", acb->pci_unit, ARCMSR_DRIVER_VERSION);
2475         printf("ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n", acb->pci_unit, acb->firm_version);
2476         acb->firm_request_len=CHIP_REG_READ32(HBB_RWBUFFER,
2477                 1, msgcode_rwbuffer[1]);   /*firm_request_len, 1, 04-07*/
2478         acb->firm_numbers_queue=CHIP_REG_READ32(HBB_RWBUFFER,
2479                 1, msgcode_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
2480         acb->firm_sdram_size=CHIP_REG_READ32(HBB_RWBUFFER,
2481                 1, msgcode_rwbuffer[3]);    /*firm_sdram_size, 3, 12-15*/
2482         acb->firm_ide_channels=CHIP_REG_READ32(HBB_RWBUFFER,
2483                 1, msgcode_rwbuffer[4]);  /*firm_ide_channels, 4, 16-19*/
2484         return;
2485 }
2486 /*
2487 **********************************************************************
2488 **********************************************************************
2489 */
2490 static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
2491 {
2492         switch (acb->adapter_type) {
2493         case ACB_ADAPTER_TYPE_A: {
2494                         arcmsr_get_hba_config(acb);
2495                 }
2496                 break;
2497         case ACB_ADAPTER_TYPE_B: {
2498                         arcmsr_get_hbb_config(acb);
2499                 }
2500                 break;
2501         }
2502         return;
2503 }
2504 /*
2505 **********************************************************************
2506 **********************************************************************
2507 */
2508 static void arcmsr_wait_firmware_ready( struct AdapterControlBlock *acb)
2509 {
2510         int     timeout=0;
2511
2512         switch (acb->adapter_type) {
2513         case ACB_ADAPTER_TYPE_A: {
2514                         while ((CHIP_REG_READ32(HBA_MessageUnit,
2515                         0, outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0)
2516                         {
2517                                 if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
2518                                 {
2519                                         printf( "arcmsr%d:"
2520                                         "timed out waiting for firmware \n", acb->pci_unit);
2521                                         return;
2522                                 }
2523                                 UDELAY(15000); /* wait 15 milli-seconds */
2524                         }
2525                 }
2526                 break;
2527         case ACB_ADAPTER_TYPE_B: {
2528                         while ((CHIP_REG_READ32(HBB_DOORBELL,
2529                         0, iop2drv_doorbell) & ARCMSR_MESSAGE_FIRMWARE_OK) == 0)
2530                         {
2531                                 if (timeout++ > 2000) /* (2000*15)/1000 = 30 sec */
2532                                 {
2533                                         printf( "arcmsr%d:"
2534                                         " timed out waiting for firmware \n", acb->pci_unit);
2535                                         return;
2536                                 }
2537                                 UDELAY(15000); /* wait 15 milli-seconds */
2538                         }
2539                         CHIP_REG_WRITE32(HBB_DOORBELL,
2540                         0, drv2iop_doorbell, ARCMSR_DRV2IOP_END_OF_INTERRUPT);
2541                 }
2542                 break;
2543         }
2544         return;
2545 }
2546 /*
2547 **********************************************************************
2548 **********************************************************************
2549 */
2550 static void arcmsr_clear_doorbell_queue_buffer( struct AdapterControlBlock *acb)
2551 {
2552         switch (acb->adapter_type) {
2553         case ACB_ADAPTER_TYPE_A: {
2554                         /* empty doorbell Qbuffer if door bell ringed */
2555                         CHIP_REG_WRITE32(HBA_MessageUnit,
2556                         0, outbound_doorbell,
2557                         CHIP_REG_READ32(HBA_MessageUnit,
2558                         0, outbound_doorbell));/*clear doorbell interrupt */
2559                         CHIP_REG_WRITE32(HBA_MessageUnit,
2560                         0, inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
2561                 }
2562                 break;
2563         case ACB_ADAPTER_TYPE_B: {
2564                         CHIP_REG_WRITE32(HBB_DOORBELL,
2565                         0, iop2drv_doorbell, ARCMSR_MESSAGE_INT_CLEAR_PATTERN);/*clear interrupt and message state*/
2566                         CHIP_REG_WRITE32(HBB_DOORBELL,
2567                         0, drv2iop_doorbell, ARCMSR_DRV2IOP_DATA_READ_OK);
2568                         /* let IOP know data has been read */
2569                 }
2570                 break;
2571         }
2572         return;
2573 }
2574 /*
2575 ************************************************************************
2576 ************************************************************************
2577 */
2578 static u_int32_t arcmsr_iop_confirm(struct AdapterControlBlock *acb)
2579 {
2580         unsigned long srb_phyaddr;
2581         u_int32_t srb_phyaddr_hi32;
2582
2583         /*
2584         ********************************************************************
2585         ** here we need to tell iop 331 our freesrb.HighPart
2586         ** if freesrb.HighPart is not zero
2587         ********************************************************************
2588         */
2589         srb_phyaddr= (unsigned long) acb->srb_phyaddr;
2590         srb_phyaddr_hi32=(u_int32_t) ((srb_phyaddr>>16)>>16);
2591         switch (acb->adapter_type) {
2592         case ACB_ADAPTER_TYPE_A: {
2593                         if(srb_phyaddr_hi32!=0) {
2594                                 CHIP_REG_WRITE32(HBA_MessageUnit,
2595                                 0, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
2596                                 CHIP_REG_WRITE32(HBA_MessageUnit,
2597                                 0, msgcode_rwbuffer[1], srb_phyaddr_hi32);
2598                                 CHIP_REG_WRITE32(HBA_MessageUnit,
2599                                 0, inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
2600                                 if(!arcmsr_hba_wait_msgint_ready(acb)) {
2601                                         printf( "arcmsr%d:"
2602                                         " 'set srb high part physical address' timeout \n", acb->pci_unit);
2603                                         return FALSE;
2604                                 }
2605                         }
2606                 }
2607                 break;
2608                 /*
2609                 ***********************************************************************
2610                 **    if adapter type B, set window of "post command Q"
2611                 ***********************************************************************
2612                 */
2613         case ACB_ADAPTER_TYPE_B: {
2614                         u_int32_t post_queue_phyaddr;
2615                         struct HBB_MessageUnit *phbbmu;
2616
2617                         phbbmu=(struct HBB_MessageUnit *)acb->pmu;
2618                         phbbmu->postq_index=0;
2619                         phbbmu->doneq_index=0;
2620                         CHIP_REG_WRITE32(HBB_DOORBELL,
2621                         0, drv2iop_doorbell, ARCMSR_MESSAGE_SET_POST_WINDOW);
2622                         if(!arcmsr_hbb_wait_msgint_ready(acb)) {
2623                                 printf( "arcmsr%d:"
2624                                 " 'set window of post command Q' timeout\n", acb->pci_unit);
2625                                 return FALSE;
2626                         }
2627                         post_queue_phyaddr = srb_phyaddr
2628                         + ARCMSR_MAX_FREESRB_NUM*sizeof(struct CommandControlBlock)
2629                         + offsetof(struct HBB_MessageUnit, post_qbuffer);
2630                         CHIP_REG_WRITE32(HBB_RWBUFFER,
2631                         1, msgcode_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG); /* driver "set config" signature */
2632                         CHIP_REG_WRITE32(HBB_RWBUFFER,
2633                         1, msgcode_rwbuffer[1], srb_phyaddr_hi32); /* normal should be zero */
2634                         CHIP_REG_WRITE32(HBB_RWBUFFER,
2635                         1, msgcode_rwbuffer[2], post_queue_phyaddr); /* postQ size (256+8)*4 */
2636                         CHIP_REG_WRITE32(HBB_RWBUFFER,
2637                         1, msgcode_rwbuffer[3], post_queue_phyaddr+1056); /* doneQ size (256+8)*4 */
2638                         CHIP_REG_WRITE32(HBB_RWBUFFER,
2639                         1, msgcode_rwbuffer[4], 1056); /* srb maxQ size must be --> [(256+8)*4] */
2640                         CHIP_REG_WRITE32(HBB_DOORBELL,
2641                         0, drv2iop_doorbell, ARCMSR_MESSAGE_SET_CONFIG);
2642                         if(!arcmsr_hbb_wait_msgint_ready(acb)) {
2643                                 printf( "arcmsr%d: 'set command Q window' timeout \n", acb->pci_unit);
2644                                 return FALSE;
2645                         }
2646                         CHIP_REG_WRITE32(HBB_DOORBELL,
2647                         0, drv2iop_doorbell, ARCMSR_MESSAGE_START_DRIVER_MODE);
2648                         if(!arcmsr_hbb_wait_msgint_ready(acb)) {
2649                                 printf( "arcmsr%d: 'start diver mode' timeout \n", acb->pci_unit);
2650                                 return FALSE;
2651                         }
2652                 }
2653                 break;
2654         }
2655         return TRUE;
2656 }
2657 /*
2658 ************************************************************************
2659 ************************************************************************
2660 */
2661 static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
2662 {
2663         switch (acb->adapter_type)
2664         {
2665         case ACB_ADAPTER_TYPE_A:
2666                 return;
2667         case ACB_ADAPTER_TYPE_B: {
2668                         CHIP_REG_WRITE32(HBB_DOORBELL,
2669                         0, drv2iop_doorbell,ARCMSR_MESSAGE_ACTIVE_EOI_MODE);
2670                         if(!arcmsr_hbb_wait_msgint_ready(acb)) {
2671                                 printf( "arcmsr%d:"
2672                                 " 'iop enable eoi mode' timeout \n", acb->pci_unit);
2673                                 return;
2674                         }
2675                 }
2676                 break;
2677         }
2678         return;
2679 }
2680 /*
2681 **********************************************************************
2682 **********************************************************************
2683 */
2684 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
2685 {
2686         u_int32_t intmask_org;
2687
2688         /* disable all outbound interrupt */
2689         intmask_org=arcmsr_disable_allintr(acb);
2690         arcmsr_wait_firmware_ready(acb);
2691         arcmsr_iop_confirm(acb);
2692         arcmsr_get_firmware_spec(acb);
2693         /*start background rebuild*/
2694         arcmsr_start_adapter_bgrb(acb);
2695         /* empty doorbell Qbuffer if door bell ringed */
2696         arcmsr_clear_doorbell_queue_buffer(acb);
2697         arcmsr_enable_eoi_mode(acb);
2698         /* enable outbound Post Queue, outbound doorbell Interrupt */
2699         arcmsr_enable_allintr(acb, intmask_org);
2700         acb->acb_flags |=ACB_F_IOP_INITED;
2701         return;
2702 }
2703 /*
2704 **********************************************************************
2705 **********************************************************************
2706 */
2707 static void arcmsr_map_freesrb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2708 {
2709         struct AdapterControlBlock *acb=arg;
2710         struct CommandControlBlock *srb_tmp;
2711         u_int8_t * dma_memptr;
2712         u_int32_t i;
2713         unsigned long srb_phyaddr=(unsigned long)segs->ds_addr;
2714
2715         dma_memptr=acb->uncacheptr;
2716         acb->srb_phyaddr=srb_phyaddr;
2717         srb_tmp=(struct CommandControlBlock *)dma_memptr;
2718         for(i=0;i<ARCMSR_MAX_FREESRB_NUM;i++) {
2719                 if(bus_dmamap_create(acb->dm_segs_dmat,
2720                          /*flags*/0, &srb_tmp->dm_segs_dmamap)!=0) {
2721                         acb->acb_flags |= ACB_F_MAPFREESRB_FAILD;
2722                         printf("arcmsr%d:"
2723                         " srb dmamap bus_dmamap_create error\n", acb->pci_unit);
2724                         return;
2725                 }
2726                 srb_tmp->cdb_shifted_phyaddr=srb_phyaddr >> 5;
2727                 srb_tmp->acb=acb;
2728                 acb->srbworkingQ[i]=acb->psrb_pool[i]=srb_tmp;
2729                 srb_phyaddr=srb_phyaddr+sizeof(struct CommandControlBlock);
2730                 srb_tmp++;
2731         }
2732         acb->vir2phy_offset=(unsigned long)srb_tmp-(unsigned long)srb_phyaddr;
2733         return;
2734 }
2735 /*
2736 ************************************************************************
2737 **
2738 **
2739 ************************************************************************
2740 */
2741 static void arcmsr_free_resource(struct AdapterControlBlock *acb)
2742 {
2743         /* remove the control device */
2744         if(acb->ioctl_dev != NULL) {
2745                 destroy_dev(acb->ioctl_dev);
2746         }
2747         bus_dmamap_unload(acb->srb_dmat, acb->srb_dmamap);
2748         bus_dmamap_destroy(acb->srb_dmat, acb->srb_dmamap);
2749         bus_dma_tag_destroy(acb->srb_dmat);
2750         bus_dma_tag_destroy(acb->dm_segs_dmat);
2751         bus_dma_tag_destroy(acb->parent_dmat);
2752         return;
2753 }
2754 /*
2755 ************************************************************************
2756 ************************************************************************
2757 */
2758 static u_int32_t arcmsr_initialize(device_t dev)
2759 {
2760         struct AdapterControlBlock *acb=device_get_softc(dev);
2761         u_int16_t pci_command;
2762         int i, j,max_coherent_size;
2763
2764         switch (pci_get_devid(dev)) {
2765         case PCIDevVenIDARC1201: {
2766                         acb->adapter_type=ACB_ADAPTER_TYPE_B;
2767                         max_coherent_size=ARCMSR_SRBS_POOL_SIZE
2768                                 +(sizeof(struct HBB_MessageUnit));
2769                 }
2770                 break;
2771         case PCIDevVenIDARC1110:
2772         case PCIDevVenIDARC1120:
2773         case PCIDevVenIDARC1130:
2774         case PCIDevVenIDARC1160:
2775         case PCIDevVenIDARC1170:
2776         case PCIDevVenIDARC1210:
2777         case PCIDevVenIDARC1220:
2778         case PCIDevVenIDARC1230:
2779         case PCIDevVenIDARC1260:
2780         case PCIDevVenIDARC1270:
2781         case PCIDevVenIDARC1280:
2782         case PCIDevVenIDARC1380:
2783         case PCIDevVenIDARC1381:
2784         case PCIDevVenIDARC1680:
2785         case PCIDevVenIDARC1681: {
2786                         acb->adapter_type=ACB_ADAPTER_TYPE_A;
2787                         max_coherent_size=ARCMSR_SRBS_POOL_SIZE;
2788                 }
2789                 break;
2790         default: {
2791                         printf("arcmsr%d:"
2792                         " unknown RAID adapter type \n", device_get_unit(dev));
2793                         return ENOMEM;
2794                 }
2795         }
2796 #if __FreeBSD_version >= 502010
2797         if(bus_dma_tag_create(  /*parent*/      NULL,
2798                                 /*alignemnt*/   1,
2799                                 /*boundary*/    0,
2800                                 /*lowaddr*/     BUS_SPACE_MAXADDR,
2801                                 /*highaddr*/    BUS_SPACE_MAXADDR,
2802                                 /*filter*/      NULL,
2803                                 /*filterarg*/   NULL,
2804                                 /*maxsize*/     BUS_SPACE_MAXSIZE_32BIT,
2805                                 /*nsegments*/   BUS_SPACE_UNRESTRICTED,
2806                                 /*maxsegsz*/    BUS_SPACE_MAXSIZE_32BIT,
2807                                 /*flags*/       0,
2808                                 /*lockfunc*/    NULL,
2809                                 /*lockarg*/     NULL,
2810                                                 &acb->parent_dmat) != 0)
2811 #else
2812         if(bus_dma_tag_create(  /*parent*/      NULL,
2813                                 /*alignemnt*/   1,
2814                                 /*boundary*/    0,
2815                                 /*lowaddr*/     BUS_SPACE_MAXADDR,
2816                                 /*highaddr*/    BUS_SPACE_MAXADDR,
2817                                 /*filter*/      NULL,
2818                                 /*filterarg*/   NULL,
2819                                 /*maxsize*/     BUS_SPACE_MAXSIZE_32BIT,
2820                                 /*nsegments*/   BUS_SPACE_UNRESTRICTED,
2821                                 /*maxsegsz*/    BUS_SPACE_MAXSIZE_32BIT,
2822                                 /*flags*/       0,
2823                                                 &acb->parent_dmat) != 0)
2824 #endif
2825         {
2826                 printf("arcmsr%d: parent_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
2827                 return ENOMEM;
2828         }
2829         /* Create a single tag describing a region large enough to hold all of the s/g lists we will need. */
2830 #if __FreeBSD_version >= 502010
2831         if(bus_dma_tag_create(  /*parent_dmat*/ acb->parent_dmat,
2832                                 /*alignment*/   1,
2833                                 /*boundary*/    0,
2834                                 /*lowaddr*/     BUS_SPACE_MAXADDR,
2835                                 /*highaddr*/    BUS_SPACE_MAXADDR,
2836                                 /*filter*/      NULL,
2837                                 /*filterarg*/   NULL,
2838                                 /*maxsize*/     MAXBSIZE,
2839                                 /*nsegments*/   ARCMSR_MAX_SG_ENTRIES,
2840                                 /*maxsegsz*/    BUS_SPACE_MAXSIZE_32BIT,
2841                                 /*flags*/       0,
2842                                 /*lockfunc*/    busdma_lock_mutex,
2843 #if __FreeBSD_version >= 700025
2844                                 /*lockarg*/     &acb->qbuffer_lock,
2845 #else
2846                                 /*lockarg*/     &Giant,
2847 #endif
2848                                                 &acb->dm_segs_dmat) != 0)
2849 #else
2850         if(bus_dma_tag_create(  /*parent_dmat*/ acb->parent_dmat,
2851                                 /*alignment*/   1,
2852                                 /*boundary*/    0,
2853                                 /*lowaddr*/     BUS_SPACE_MAXADDR,
2854                                 /*highaddr*/    BUS_SPACE_MAXADDR,
2855                                 /*filter*/      NULL,
2856                                 /*filterarg*/   NULL,
2857                                 /*maxsize*/     MAXBSIZE,
2858                                 /*nsegments*/   ARCMSR_MAX_SG_ENTRIES,
2859                                 /*maxsegsz*/    BUS_SPACE_MAXSIZE_32BIT,
2860                                 /*flags*/       0,
2861                                                 &acb->dm_segs_dmat) != 0)
2862 #endif
2863         {
2864                 bus_dma_tag_destroy(acb->parent_dmat);
2865                 printf("arcmsr%d: dm_segs_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
2866                 return ENOMEM;
2867         }
2868         /* DMA tag for our srb structures.... Allocate the freesrb memory */
2869 #if __FreeBSD_version >= 502010
2870         if(bus_dma_tag_create(  /*parent_dmat*/ acb->parent_dmat,
2871                                 /*alignment*/   0x20,
2872                                 /*boundary*/    0,
2873                                 /*lowaddr*/     BUS_SPACE_MAXADDR_32BIT,
2874                                 /*highaddr*/    BUS_SPACE_MAXADDR,
2875                                 /*filter*/      NULL,
2876                                 /*filterarg*/   NULL,
2877                                 /*maxsize*/     max_coherent_size,
2878                                 /*nsegments*/   1,
2879                                 /*maxsegsz*/    BUS_SPACE_MAXSIZE_32BIT,
2880                                 /*flags*/       0,
2881                                 /*lockfunc*/    NULL,
2882                                 /*lockarg*/     NULL,
2883                                                 &acb->srb_dmat) != 0)
2884 #else
2885         if(bus_dma_tag_create(  /*parent_dmat*/ acb->parent_dmat,
2886                                 /*alignment*/   0x20,
2887                                 /*boundary*/    0,
2888                                 /*lowaddr*/     BUS_SPACE_MAXADDR_32BIT,
2889                                 /*highaddr*/    BUS_SPACE_MAXADDR,
2890                                 /*filter*/      NULL,
2891                                 /*filterarg*/   NULL,
2892                                 /*maxsize*/     max_coherent_size,
2893                                 /*nsegments*/   1,
2894                                 /*maxsegsz*/    BUS_SPACE_MAXSIZE_32BIT,
2895                                 /*flags*/       0,
2896                                                 &acb->srb_dmat) != 0)
2897 #endif
2898         {
2899                 bus_dma_tag_destroy(acb->dm_segs_dmat);
2900                 bus_dma_tag_destroy(acb->parent_dmat);
2901                 printf("arcmsr%d: srb_dmat bus_dma_tag_create failure!\n", device_get_unit(dev));
2902                 return ENXIO;
2903         }
2904         /* Allocation for our srbs */
2905         if(bus_dmamem_alloc(acb->srb_dmat, (void **)&acb->uncacheptr
2906                 , BUS_DMA_WAITOK | BUS_DMA_COHERENT, &acb->srb_dmamap) != 0) {
2907                 bus_dma_tag_destroy(acb->srb_dmat);
2908                 bus_dma_tag_destroy(acb->dm_segs_dmat);
2909                 bus_dma_tag_destroy(acb->parent_dmat);
2910                 printf("arcmsr%d: srb_dmat bus_dmamem_alloc failure!\n", device_get_unit(dev));
2911                 return ENXIO;
2912         }
2913         /* And permanently map them */
2914         if(bus_dmamap_load(acb->srb_dmat, acb->srb_dmamap, acb->uncacheptr
2915                 , max_coherent_size, arcmsr_map_freesrb, acb, /*flags*/0)) {
2916                 bus_dma_tag_destroy(acb->srb_dmat);
2917                 bus_dma_tag_destroy(acb->dm_segs_dmat);
2918                 bus_dma_tag_destroy(acb->parent_dmat);
2919                 printf("arcmsr%d: srb_dmat bus_dmamap_load failure!\n", device_get_unit(dev));
2920                 return ENXIO;
2921         }
2922         pci_command=pci_read_config(dev, PCIR_COMMAND, 2);
2923         pci_command |= PCIM_CMD_BUSMASTEREN;
2924         pci_command |= PCIM_CMD_PERRESPEN;
2925         pci_command |= PCIM_CMD_MWRICEN;
2926         /* Enable Busmaster/Mem */
2927         pci_command |= PCIM_CMD_MEMEN;
2928         pci_write_config(dev, PCIR_COMMAND, pci_command, 2);
2929         switch(acb->adapter_type) {
2930         case ACB_ADAPTER_TYPE_A: {
2931                         u_int32_t rid0=PCIR_BAR(0);
2932                         vm_offset_t     mem_base0;
2933
2934                         acb->sys_res_arcmsr[0]=bus_alloc_resource(dev,
2935                         SYS_RES_MEMORY, &rid0, 0ul, ~0ul, 0x1000, RF_ACTIVE);
2936                         if(acb->sys_res_arcmsr[0] == NULL) {
2937                                 arcmsr_free_resource(acb);
2938                                 printf("arcmsr%d:"
2939                                 " bus_alloc_resource failure!\n", device_get_unit(dev));
2940                                 return ENOMEM;
2941                         }
2942                         if(rman_get_start(acb->sys_res_arcmsr[0]) <= 0) {
2943                                 arcmsr_free_resource(acb);
2944                                 printf("arcmsr%d:"
2945                                 " rman_get_start failure!\n", device_get_unit(dev));
2946                                 return ENXIO;
2947                         }
2948                         mem_base0=(vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[0]);
2949                         if(mem_base0==0) {
2950                                 arcmsr_free_resource(acb);
2951                                 printf("arcmsr%d:"
2952                                 " rman_get_virtual failure!\n", device_get_unit(dev));
2953                                 return ENXIO;
2954                         }
2955                         acb->btag[0]=rman_get_bustag(acb->sys_res_arcmsr[0]);
2956                         acb->bhandle[0]=rman_get_bushandle(acb->sys_res_arcmsr[0]);
2957                         acb->pmu=(struct MessageUnit_UNION *)mem_base0;
2958                 }
2959                 break;
2960         case ACB_ADAPTER_TYPE_B: {
2961                         struct HBB_MessageUnit *phbbmu;
2962                         struct CommandControlBlock *freesrb;
2963                         u_int32_t rid[]={ PCIR_BAR(0), PCIR_BAR(2) };
2964                         vm_offset_t     mem_base[]={0,0};
2965                         for(i=0; i<2; i++) {
2966                                 if(i==0) {
2967                                         acb->sys_res_arcmsr[i]=bus_alloc_resource(dev,
2968                                         SYS_RES_MEMORY, &rid[i],
2969                                         0x20400, 0x20400+sizeof(struct HBB_DOORBELL),
2970                                         sizeof(struct HBB_DOORBELL), RF_ACTIVE);
2971                                 } else {
2972                                         acb->sys_res_arcmsr[i]=bus_alloc_resource(dev,
2973                                         SYS_RES_MEMORY, &rid[i],
2974                                         0x0fa00, 0x0fa00+sizeof(struct HBB_RWBUFFER),
2975                                         sizeof(struct HBB_RWBUFFER), RF_ACTIVE);
2976                                 }
2977                                 if(acb->sys_res_arcmsr[i] == NULL) {
2978                                         arcmsr_free_resource(acb);
2979                                         printf("arcmsr%d:"
2980                                         " bus_alloc_resource %d failure!\n", device_get_unit(dev), i);
2981                                         return ENOMEM;
2982                                 }
2983                                 if(rman_get_start(acb->sys_res_arcmsr[i]) <= 0) {
2984                                         arcmsr_free_resource(acb);
2985                                         printf("arcmsr%d:"
2986                                         " rman_get_start %d failure!\n", device_get_unit(dev), i);
2987                                         return ENXIO;
2988                                 }
2989                                 mem_base[i]=(vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr[i]);
2990                                 if(mem_base[i]==0) {
2991                                         arcmsr_free_resource(acb);
2992                                         printf("arcmsr%d:"
2993                                         " rman_get_virtual %d failure!\n", device_get_unit(dev), i);
2994                                         return ENXIO;
2995                                 }
2996                                 acb->btag[i]=rman_get_bustag(acb->sys_res_arcmsr[i]);
2997                                 acb->bhandle[i]=rman_get_bushandle(acb->sys_res_arcmsr[i]);
2998                         }
2999                         freesrb=(struct CommandControlBlock *)acb->uncacheptr;
3000                         acb->pmu=(struct MessageUnit_UNION *)&freesrb[ARCMSR_MAX_FREESRB_NUM];
3001                         phbbmu=(struct HBB_MessageUnit *)acb->pmu;
3002                         phbbmu->hbb_doorbell=(struct HBB_DOORBELL *)mem_base[0];
3003                         phbbmu->hbb_rwbuffer=(struct HBB_RWBUFFER *)mem_base[1];
3004                 }
3005                 break;
3006         }
3007         if(acb->acb_flags & ACB_F_MAPFREESRB_FAILD) {
3008                 arcmsr_free_resource(acb);
3009                 printf("arcmsr%d: map free srb failure!\n", device_get_unit(dev));
3010                 return ENXIO;
3011         }
3012         acb->acb_flags  |= (ACB_F_MESSAGE_WQBUFFER_CLEARED
3013                         |ACB_F_MESSAGE_RQBUFFER_CLEARED
3014                         |ACB_F_MESSAGE_WQBUFFER_READ);
3015         acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
3016         /*
3017         ********************************************************************
3018         ** init raid volume state
3019         ********************************************************************
3020         */
3021         for(i=0;i<ARCMSR_MAX_TARGETID;i++) {
3022                 for(j=0;j<ARCMSR_MAX_TARGETLUN;j++) {
3023                         acb->devstate[i][j]=ARECA_RAID_GONE;
3024                 }
3025         }
3026         arcmsr_iop_init(acb);
3027         return(0);
3028 }
3029 /*
3030 ************************************************************************
3031 ************************************************************************
3032 */
3033 static u_int32_t arcmsr_attach(device_t dev)
3034 {
3035         struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
3036         u_int32_t unit=device_get_unit(dev);
3037         struct ccb_setasync csa;
3038         struct cam_devq *devq;  /* Device Queue to use for this SIM */
3039         struct resource *irqres;
3040         int     rid;
3041
3042         if(acb == NULL) {
3043                 printf("arcmsr%d: cannot allocate softc\n", unit);
3044                 return (ENOMEM);
3045         }
3046         ARCMSR_LOCK_INIT(&acb->qbuffer_lock, "arcmsr Q buffer lock");
3047         if(arcmsr_initialize(dev)) {
3048                 printf("arcmsr%d: initialize failure!\n", unit);
3049                 ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
3050                 return ENXIO;
3051         }
3052         /* After setting up the adapter, map our interrupt */
3053         rid=0;
3054         irqres=bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0ul, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE);
3055         if(irqres == NULL ||
3056 #if __FreeBSD_version >= 700025
3057         bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE
3058                 , NULL, arcmsr_intr_handler, acb, &acb->ih)) {
3059 #else
3060         bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE
3061                 , arcmsr_intr_handler, acb, &acb->ih)) {
3062 #endif
3063                 arcmsr_free_resource(acb);
3064                 ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
3065                 printf("arcmsr%d: unable to register interrupt handler!\n", unit);
3066                 return ENXIO;
3067         }
3068         acb->irqres=irqres;
3069         acb->pci_dev=dev;
3070         acb->pci_unit=unit;
3071         /*
3072          * Now let the CAM generic SCSI layer find the SCSI devices on
3073          * the bus *  start queue to reset to the idle loop. *
3074          * Create device queue of SIM(s) *  (MAX_START_JOB - 1) :
3075          * max_sim_transactions
3076         */
3077         devq=cam_simq_alloc(ARCMSR_MAX_START_JOB);
3078         if(devq == NULL) {
3079             arcmsr_free_resource(acb);
3080                 bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
3081                 ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
3082                 printf("arcmsr%d: cam_simq_alloc failure!\n", unit);
3083                 return ENXIO;
3084         }
3085 #if __FreeBSD_version >= 700025
3086         acb->psim=cam_sim_alloc(arcmsr_action, arcmsr_poll,
3087                 "arcmsr", acb, unit, &acb->qbuffer_lock, 1,
3088                 ARCMSR_MAX_OUTSTANDING_CMD, devq);
3089 #else
3090         acb->psim=cam_sim_alloc(arcmsr_action, arcmsr_poll,
3091                 "arcmsr", acb, unit, 1,
3092                 ARCMSR_MAX_OUTSTANDING_CMD, devq);
3093 #endif
3094         if(acb->psim == NULL) {
3095                 arcmsr_free_resource(acb);
3096                 bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
3097                 cam_simq_free(devq);
3098                 ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
3099                 printf("arcmsr%d: cam_sim_alloc failure!\n", unit);
3100                 return ENXIO;
3101         }
3102         ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
3103 #if __FreeBSD_version >= 700044
3104         if(xpt_bus_register(acb->psim, dev, 0) != CAM_SUCCESS) {
3105 #else
3106         if(xpt_bus_register(acb->psim, 0) != CAM_SUCCESS) {
3107 #endif
3108                 arcmsr_free_resource(acb);
3109                 bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
3110                 cam_sim_free(acb->psim, /*free_devq*/TRUE);
3111                 ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
3112                 printf("arcmsr%d: xpt_bus_register failure!\n", unit);
3113                 return ENXIO;
3114         }
3115         if(xpt_create_path(&acb->ppath, /* periph */ NULL
3116                 , cam_sim_path(acb->psim)
3117                 , CAM_TARGET_WILDCARD
3118                 , CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
3119                 arcmsr_free_resource(acb);
3120                 bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
3121                 xpt_bus_deregister(cam_sim_path(acb->psim));
3122                 cam_sim_free(acb->psim, /* free_simq */ TRUE);
3123                 ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
3124                 printf("arcmsr%d: xpt_create_path failure!\n", unit);
3125                 return ENXIO;
3126         }
3127         /*
3128         ****************************************************
3129         */
3130         xpt_setup_ccb(&csa.ccb_h, acb->ppath, /*priority*/5);
3131         csa.ccb_h.func_code=XPT_SASYNC_CB;
3132         csa.event_enable=AC_FOUND_DEVICE|AC_LOST_DEVICE;
3133         csa.callback=arcmsr_async;
3134         csa.callback_arg=acb->psim;
3135         xpt_action((union ccb *)&csa);
3136         ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
3137         /* Create the control device.  */
3138         acb->ioctl_dev=make_dev(&arcmsr_cdevsw
3139                 , unit
3140                 , UID_ROOT
3141                 , GID_WHEEL /* GID_OPERATOR */
3142                 , S_IRUSR | S_IWUSR
3143                 , "arcmsr%d", unit);
3144 #if __FreeBSD_version < 503000
3145         acb->ioctl_dev->si_drv1=acb;
3146 #endif
3147 #if __FreeBSD_version > 500005
3148         (void)make_dev_alias(acb->ioctl_dev, "arc%d", unit);
3149 #endif
3150         return 0;
3151 }
3152 /*
3153 ************************************************************************
3154 ************************************************************************
3155 */
3156 static u_int32_t arcmsr_probe(device_t dev)
3157 {
3158         u_int32_t id;
3159         static char buf[256];
3160         char *type;
3161         int raid6 = 1;
3162
3163         if (pci_get_vendor(dev) != PCI_VENDOR_ID_ARECA) {
3164                 return (ENXIO);
3165         }
3166         switch(id=pci_get_devid(dev)) {
3167         case PCIDevVenIDARC1110:
3168         case PCIDevVenIDARC1210:
3169         case PCIDevVenIDARC1201:
3170                 raid6 = 0;
3171                 /*FALLTHRU*/
3172         case PCIDevVenIDARC1120:
3173         case PCIDevVenIDARC1130:
3174         case PCIDevVenIDARC1160:
3175         case PCIDevVenIDARC1170:
3176         case PCIDevVenIDARC1220:
3177         case PCIDevVenIDARC1230:
3178         case PCIDevVenIDARC1260:
3179         case PCIDevVenIDARC1270:
3180         case PCIDevVenIDARC1280:
3181                 type = "SATA";
3182                 break;
3183         case PCIDevVenIDARC1380:
3184         case PCIDevVenIDARC1381:
3185         case PCIDevVenIDARC1680:
3186         case PCIDevVenIDARC1681:
3187                 type = "SAS";
3188                 break;
3189         default:
3190                 type = "X-TYPE";
3191                 break;
3192         }
3193         sprintf(buf, "Areca %s Host Adapter RAID Controller %s\n", type, raid6 ? "(RAID6 capable)" : "");
3194         device_set_desc_copy(dev, buf);
3195         return 0;
3196 }
3197 /*
3198 ************************************************************************
3199 ************************************************************************
3200 */
3201 static void arcmsr_shutdown(device_t dev)
3202 {
3203         u_int32_t  i;
3204         u_int32_t intmask_org;
3205         struct CommandControlBlock *srb;
3206         struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
3207
3208         /* stop adapter background rebuild */
3209         ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
3210         /* disable all outbound interrupt */
3211         intmask_org=arcmsr_disable_allintr(acb);
3212         arcmsr_stop_adapter_bgrb(acb);
3213         arcmsr_flush_adapter_cache(acb);
3214         /* abort all outstanding command */
3215         acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
3216         acb->acb_flags &= ~ACB_F_IOP_INITED;
3217         if(acb->srboutstandingcount!=0) {
3218                 /*clear and abort all outbound posted Q*/
3219                 arcmsr_done4abort_postqueue(acb);
3220                 /* talk to iop 331 outstanding command aborted*/
3221                 arcmsr_abort_allcmd(acb);
3222                 for(i=0;i<ARCMSR_MAX_FREESRB_NUM;i++) {
3223                         srb=acb->psrb_pool[i];
3224                         if(srb->startdone==ARCMSR_SRB_START) {
3225                                 srb->startdone=ARCMSR_SRB_ABORTED;
3226                                 srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
3227                                 arcmsr_srb_complete(srb, 1);
3228                         }
3229                 }
3230         }
3231         atomic_set_int(&acb->srboutstandingcount, 0);
3232         acb->workingsrb_doneindex=0;
3233         acb->workingsrb_startindex=0;
3234         ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
3235         return;
3236 }
3237 /*
3238 ************************************************************************
3239 ************************************************************************
3240 */
3241 static u_int32_t arcmsr_detach(device_t dev)
3242 {
3243         struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
3244         int i;
3245
3246         bus_teardown_intr(dev, acb->irqres, acb->ih);
3247         arcmsr_shutdown(dev);
3248         arcmsr_free_resource(acb);
3249         for(i=0; (acb->sys_res_arcmsr[i]!=NULL) && (i<2); i++) {
3250                 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(i), acb->sys_res_arcmsr[i]);
3251         }
3252         bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
3253         ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
3254         xpt_async(AC_LOST_DEVICE, acb->ppath, NULL);
3255         xpt_free_path(acb->ppath);
3256         xpt_bus_deregister(cam_sim_path(acb->psim));
3257         cam_sim_free(acb->psim, TRUE);
3258         ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
3259         ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
3260         return (0);
3261 }
3262
3263