sys/dev/mpt/mpt_cam.c

   1 /*-
   2  * FreeBSD/CAM specific routines for LSI '909 FC  adapters.
   3  * FreeBSD Version.
   4  *
   5  * Copyright (c)  2000, 2001 by Greg Ansley
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice immediately at the beginning of the file, without modification,
  12  *    this list of conditions, and the following disclaimer.
  13  * 2. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28 /*-
  29  * Copyright (c) 2002, 2006 by Matthew Jacob
  30  * All rights reserved.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions are
  34  * met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  38  *    substantially similar to the "NO WARRANTY" disclaimer below
  39  *    ("Disclaimer") and any redistribution must be conditioned upon including
  40  *    a substantially similar Disclaimer requirement for further binary
  41  *    redistribution.
  42  * 3. Neither the names of the above listed copyright holders nor the names
  43  *    of any contributors may be used to endorse or promote products derived
  44  *    from this software without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  47  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  49  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  50  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  51  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  52  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  53  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  54  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  55  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
  56  * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  57  *
  58  * Support from Chris Ellsworth in order to make SAS adapters work
  59  * is gratefully acknowledged.
  60  *
  61  * Support from LSI-Logic has also gone a great deal toward making this a
  62  * workable subsystem and is gratefully acknowledged.
  63  */
  64 /*-
  65  * Copyright (c) 2004, Avid Technology, Inc. and its contributors.
  66  * Copyright (c) 2005, WHEEL Sp. z o.o.
  67  * Copyright (c) 2004, 2005 Justin T. Gibbs
  68  * All rights reserved.
  69  *
  70  * Redistribution and use in source and binary forms, with or without
  71  * modification, are permitted provided that the following conditions are
  72  * met:
  73  * 1. Redistributions of source code must retain the above copyright
  74  *    notice, this list of conditions and the following disclaimer.
  75  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  76  *    substantially similar to the "NO WARRANTY" disclaimer below
  77  *    ("Disclaimer") and any redistribution must be conditioned upon including
  78  *    a substantially similar Disclaimer requirement for further binary
  79  *    redistribution.
  80  * 3. Neither the names of the above listed copyright holders nor the names
  81  *    of any contributors may be used to endorse or promote products derived
  82  *    from this software without specific prior written permission.
  83  *
  84  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  85  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  86  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  87  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  88  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  89  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  90  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  91  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  92  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  93  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
  94  * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  95  */
  96 #include <sys/cdefs.h>
  97 __FBSDID("$FreeBSD$");
  98
  99 #include <dev/mpt/mpt.h>
 100 #include <dev/mpt/mpt_cam.h>
 101 #include <dev/mpt/mpt_raid.h>
 102
 103 #include "dev/mpt/mpilib/mpi_ioc.h" /* XXX Fix Event Handling!!! */
 104 #include "dev/mpt/mpilib/mpi_init.h"
 105 #include "dev/mpt/mpilib/mpi_targ.h"
 106 #include "dev/mpt/mpilib/mpi_fc.h"
 107 #include "dev/mpt/mpilib/mpi_sas.h"
 108
 109 #include <sys/callout.h>
 110 #include <sys/kthread.h>
 111 #include <sys/sysctl.h>
 112
 113 #if __FreeBSD_version >= 700025
 114 #ifndef CAM_NEW_TRAN_CODE
 115 #define CAM_NEW_TRAN_CODE       1
 116 #endif
 117 #endif
 118
 119 static void mpt_poll(struct cam_sim *);
 120 static timeout_t mpt_timeout;
 121 static void mpt_action(struct cam_sim *, union ccb *);
 122 static int
 123 mpt_get_spi_settings(struct mpt_softc *, struct ccb_trans_settings *);
 124 static void mpt_setwidth(struct mpt_softc *, int, int);
 125 static void mpt_setsync(struct mpt_softc *, int, int, int);
 126 static int mpt_update_spi_config(struct mpt_softc *, int);
 127
 128 static mpt_reply_handler_t mpt_scsi_reply_handler;
 129 static mpt_reply_handler_t mpt_scsi_tmf_reply_handler;
 130 static mpt_reply_handler_t mpt_fc_els_reply_handler;
 131 static int mpt_scsi_reply_frame_handler(struct mpt_softc *, request_t *,
 132                                         MSG_DEFAULT_REPLY *);
 133 static int mpt_bus_reset(struct mpt_softc *, target_id_t, lun_id_t, int);
 134 static int mpt_fc_reset_link(struct mpt_softc *, int);
 135
 136 static int mpt_spawn_recovery_thread(struct mpt_softc *mpt);
 137 static void mpt_terminate_recovery_thread(struct mpt_softc *mpt);
 138 static void mpt_recovery_thread(void *arg);
 139 static void mpt_recover_commands(struct mpt_softc *mpt);
 140
 141 static int mpt_scsi_send_tmf(struct mpt_softc *, u_int, u_int, u_int,
 142     u_int, u_int, u_int, int);
 143
 144 static void mpt_fc_post_els(struct mpt_softc *mpt, request_t *, int);
 145 static void mpt_post_target_command(struct mpt_softc *, request_t *, int);
 146 static int mpt_add_els_buffers(struct mpt_softc *mpt);
 147 static int mpt_add_target_commands(struct mpt_softc *mpt);
 148 static int mpt_enable_lun(struct mpt_softc *, target_id_t, lun_id_t);
 149 static int mpt_disable_lun(struct mpt_softc *, target_id_t, lun_id_t);
 150 static void mpt_target_start_io(struct mpt_softc *, union ccb *);
 151 static cam_status mpt_abort_target_ccb(struct mpt_softc *, union ccb *);
 152 static int mpt_abort_target_cmd(struct mpt_softc *, request_t *);
 153 static void mpt_scsi_tgt_status(struct mpt_softc *, union ccb *, request_t *,
 154     uint8_t, uint8_t const *);
 155 static void
 156 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *, request_t *, mpt_task_mgmt_t,
 157     tgt_resource_t *, int);
 158 static void mpt_tgt_dump_tgt_state(struct mpt_softc *, request_t *);
 159 static void mpt_tgt_dump_req_state(struct mpt_softc *, request_t *);
 160 static mpt_reply_handler_t mpt_scsi_tgt_reply_handler;
 161 static mpt_reply_handler_t mpt_sata_pass_reply_handler;
 162
 163 static uint32_t scsi_io_handler_id = MPT_HANDLER_ID_NONE;
 164 static uint32_t scsi_tmf_handler_id = MPT_HANDLER_ID_NONE;
 165 static uint32_t fc_els_handler_id = MPT_HANDLER_ID_NONE;
 166 static uint32_t sata_pass_handler_id = MPT_HANDLER_ID_NONE;
 167
 168 static mpt_probe_handler_t      mpt_cam_probe;
 169 static mpt_attach_handler_t     mpt_cam_attach;
 170 static mpt_enable_handler_t     mpt_cam_enable;
 171 static mpt_ready_handler_t      mpt_cam_ready;
 172 static mpt_event_handler_t      mpt_cam_event;
 173 static mpt_reset_handler_t      mpt_cam_ioc_reset;
 174 static mpt_detach_handler_t     mpt_cam_detach;
 175
 176 static struct mpt_personality mpt_cam_personality =
 177 {
 178         .name           = "mpt_cam",
 179         .probe          = mpt_cam_probe,
 180         .attach         = mpt_cam_attach,
 181         .enable         = mpt_cam_enable,
 182         .ready          = mpt_cam_ready,
 183         .event          = mpt_cam_event,
 184         .reset          = mpt_cam_ioc_reset,
 185         .detach         = mpt_cam_detach,
 186 };
 187
 188 DECLARE_MPT_PERSONALITY(mpt_cam, SI_ORDER_SECOND);
 189 MODULE_DEPEND(mpt_cam, cam, 1, 1, 1);
 190
 191 int mpt_enable_sata_wc = -1;
 192 TUNABLE_INT("hw.mpt.enable_sata_wc", &mpt_enable_sata_wc);
 193
 194 static int
 195 mpt_cam_probe(struct mpt_softc *mpt)
 196 {
 197         int role;
 198
 199         /*
 200          * Only attach to nodes that support the initiator or target role
 201          * (or want to) or have RAID physical devices that need CAM pass-thru
 202          * support.
 203          */
 204         if (mpt->do_cfg_role) {
 205                 role = mpt->cfg_role;
 206         } else {
 207                 role = mpt->role;
 208         }
 209         if ((role & (MPT_ROLE_TARGET|MPT_ROLE_INITIATOR)) != 0 ||
 210             (mpt->ioc_page2 != NULL && mpt->ioc_page2->MaxPhysDisks != 0)) {
 211                 return (0);
 212         }
 213         return (ENODEV);
 214 }
 215
 216 static int
 217 mpt_cam_attach(struct mpt_softc *mpt)
 218 {
 219         struct cam_devq *devq;
 220         mpt_handler_t    handler;
 221         int              maxq;
 222         int              error;
 223
 224         MPT_LOCK(mpt);
 225         TAILQ_INIT(&mpt->request_timeout_list);
 226         maxq = (mpt->ioc_facts.GlobalCredits < MPT_MAX_REQUESTS(mpt))?
 227             mpt->ioc_facts.GlobalCredits : MPT_MAX_REQUESTS(mpt);
 228
 229         handler.reply_handler = mpt_scsi_reply_handler;
 230         error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 231                                      &scsi_io_handler_id);
 232         if (error != 0) {
 233                 MPT_UNLOCK(mpt);
 234                 goto cleanup;
 235         }
 236
 237         handler.reply_handler = mpt_scsi_tmf_reply_handler;
 238         error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 239                                      &scsi_tmf_handler_id);
 240         if (error != 0) {
 241                 MPT_UNLOCK(mpt);
 242                 goto cleanup;
 243         }
 244
 245         /*
 246          * If we're fibre channel and could support target mode, we register
 247          * an ELS reply handler and give it resources.
 248          */
 249         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET) != 0) {
 250                 handler.reply_handler = mpt_fc_els_reply_handler;
 251                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 252                     &fc_els_handler_id);
 253                 if (error != 0) {
 254                         MPT_UNLOCK(mpt);
 255                         goto cleanup;
 256                 }
 257                 if (mpt_add_els_buffers(mpt) == FALSE) {
 258                         error = ENOMEM;
 259                         MPT_UNLOCK(mpt);
 260                         goto cleanup;
 261                 }
 262                 maxq -= mpt->els_cmds_allocated;
 263         }
 264
 265         /*
 266          * If we support target mode, we register a reply handler for it,
 267          * but don't add command resources until we actually enable target
 268          * mode.
 269          */
 270         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET) != 0) {
 271                 handler.reply_handler = mpt_scsi_tgt_reply_handler;
 272                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 273                     &mpt->scsi_tgt_handler_id);
 274                 if (error != 0) {
 275                         MPT_UNLOCK(mpt);
 276                         goto cleanup;
 277                 }
 278         }
 279
 280         if (mpt->is_sas) {
 281                 handler.reply_handler = mpt_sata_pass_reply_handler;
 282                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 283                     &sata_pass_handler_id);
 284                 if (error != 0) {
 285                         MPT_UNLOCK(mpt);
 286                         goto cleanup;
 287                 }
 288         }
 289
 290         /*
 291          * We keep one request reserved for timeout TMF requests.
 292          */
 293         mpt->tmf_req = mpt_get_request(mpt, FALSE);
 294         if (mpt->tmf_req == NULL) {
 295                 mpt_prt(mpt, "Unable to allocate dedicated TMF request!\n");
 296                 error = ENOMEM;
 297                 MPT_UNLOCK(mpt);
 298                 goto cleanup;
 299         }
 300
 301         /*
 302          * Mark the request as free even though not on the free list.
 303          * There is only one TMF request allowed to be outstanding at
 304          * a time and the TMF routines perform their own allocation
 305          * tracking using the standard state flags.
 306          */
 307         mpt->tmf_req->state = REQ_STATE_FREE;
 308         maxq--;
 309
 310         /*
 311          * The rest of this is CAM foo, for which we need to drop our lock
 312          */
 313         MPT_UNLOCK(mpt);
 314
 315         if (mpt_spawn_recovery_thread(mpt) != 0) {
 316                 mpt_prt(mpt, "Unable to spawn recovery thread!\n");
 317                 error = ENOMEM;
 318                 goto cleanup;
 319         }
 320
 321         /*
 322          * Create the device queue for our SIM(s).
 323          */
 324         devq = cam_simq_alloc(maxq);
 325         if (devq == NULL) {
 326                 mpt_prt(mpt, "Unable to allocate CAM SIMQ!\n");
 327                 error = ENOMEM;
 328                 goto cleanup;
 329         }
 330
 331         /*
 332          * Construct our SIM entry.
 333          */
 334         mpt->sim =
 335             mpt_sim_alloc(mpt_action, mpt_poll, "mpt", mpt, 1, maxq, devq);
 336         if (mpt->sim == NULL) {
 337                 mpt_prt(mpt, "Unable to allocate CAM SIM!\n");
 338                 cam_simq_free(devq);
 339                 error = ENOMEM;
 340                 goto cleanup;
 341         }
 342
 343         /*
 344          * Register exactly this bus.
 345          */
 346         MPT_LOCK(mpt);
 347         if (mpt_xpt_bus_register(mpt->sim, mpt->dev, 0) != CAM_SUCCESS) {
 348                 mpt_prt(mpt, "Bus registration Failed!\n");
 349                 error = ENOMEM;
 350                 MPT_UNLOCK(mpt);
 351                 goto cleanup;
 352         }
 353
 354         if (xpt_create_path(&mpt->path, NULL, cam_sim_path(mpt->sim),
 355             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 356                 mpt_prt(mpt, "Unable to allocate Path!\n");
 357                 error = ENOMEM;
 358                 MPT_UNLOCK(mpt);
 359                 goto cleanup;
 360         }
 361         MPT_UNLOCK(mpt);
 362
 363         /*
 364          * Only register a second bus for RAID physical
 365          * devices if the controller supports RAID.
 366          */
 367         if (mpt->ioc_page2 == NULL || mpt->ioc_page2->MaxPhysDisks == 0) {
 368                 return (0);
 369         }
 370
 371         /*
 372          * Create a "bus" to export all hidden disks to CAM.
 373          */
 374         mpt->phydisk_sim =
 375             mpt_sim_alloc(mpt_action, mpt_poll, "mpt", mpt, 1, maxq, devq);
 376         if (mpt->phydisk_sim == NULL) {
 377                 mpt_prt(mpt, "Unable to allocate Physical Disk CAM SIM!\n");
 378                 error = ENOMEM;
 379                 goto cleanup;
 380         }
 381
 382         /*
 383          * Register this bus.
 384          */
 385         MPT_LOCK(mpt);
 386         if (mpt_xpt_bus_register(mpt->phydisk_sim, mpt->dev, 1) !=
 387             CAM_SUCCESS) {
 388                 mpt_prt(mpt, "Physical Disk Bus registration Failed!\n");
 389                 error = ENOMEM;
 390                 MPT_UNLOCK(mpt);
 391                 goto cleanup;
 392         }
 393
 394         if (xpt_create_path(&mpt->phydisk_path, NULL,
 395             cam_sim_path(mpt->phydisk_sim),
 396             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 397                 mpt_prt(mpt, "Unable to allocate Physical Disk Path!\n");
 398                 error = ENOMEM;
 399                 MPT_UNLOCK(mpt);
 400                 goto cleanup;
 401         }
 402         MPT_UNLOCK(mpt);
 403         mpt_lprt(mpt, MPT_PRT_DEBUG, "attached cam\n");
 404         return (0);
 405
 406 cleanup:
 407         mpt_cam_detach(mpt);
 408         return (error);
 409 }
 410
 411 /*
 412  * Read FC configuration information
 413  */
 414 static int
 415 mpt_read_config_info_fc(struct mpt_softc *mpt)
 416 {
 417         struct sysctl_ctx_list *ctx;
 418         struct sysctl_oid *tree;
 419         char *topology = NULL;
 420         int rv;
 421
 422         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_FC_PORT, 0,
 423             0, &mpt->mpt_fcport_page0.Header, FALSE, 5000);
 424         if (rv) {
 425                 return (-1);
 426         }
 427         mpt_lprt(mpt, MPT_PRT_DEBUG, "FC Port Page 0 Header: %x %x %x %x\n",
 428                  mpt->mpt_fcport_page0.Header.PageVersion,
 429                  mpt->mpt_fcport_page0.Header.PageLength,
 430                  mpt->mpt_fcport_page0.Header.PageNumber,
 431                  mpt->mpt_fcport_page0.Header.PageType);
 432
 433
 434         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_fcport_page0.Header,
 435             sizeof(mpt->mpt_fcport_page0), FALSE, 5000);
 436         if (rv) {
 437                 mpt_prt(mpt, "failed to read FC Port Page 0\n");
 438                 return (-1);
 439         }
 440         mpt2host_config_page_fc_port_0(&mpt->mpt_fcport_page0);
 441
 442         mpt->mpt_fcport_speed = mpt->mpt_fcport_page0.CurrentSpeed;
 443
 444         switch (mpt->mpt_fcport_page0.Flags &
 445             MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) {
 446         case MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT:
 447                 mpt->mpt_fcport_speed = 0;
 448                 topology = "<NO LOOP>";
 449                 break;
 450         case MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT:
 451                 topology = "N-Port";
 452                 break;
 453         case MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP:
 454                 topology = "NL-Port";
 455                 break;
 456         case MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT:
 457                 topology = "F-Port";
 458                 break;
 459         case MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP:
 460                 topology = "FL-Port";
 461                 break;
 462         default:
 463                 mpt->mpt_fcport_speed = 0;
 464                 topology = "?";
 465                 break;
 466         }
 467
 468         mpt_lprt(mpt, MPT_PRT_INFO,
 469             "FC Port Page 0: Topology <%s> WWNN 0x%08x%08x WWPN 0x%08x%08x "
 470             "Speed %u-Gbit\n", topology,
 471             mpt->mpt_fcport_page0.WWNN.High,
 472             mpt->mpt_fcport_page0.WWNN.Low,
 473             mpt->mpt_fcport_page0.WWPN.High,
 474             mpt->mpt_fcport_page0.WWPN.Low,
 475             mpt->mpt_fcport_speed);
 476         MPT_UNLOCK(mpt);
 477         ctx = device_get_sysctl_ctx(mpt->dev);
 478         tree = device_get_sysctl_tree(mpt->dev);
 479
 480         snprintf(mpt->scinfo.fc.wwnn, sizeof (mpt->scinfo.fc.wwnn),
 481             "0x%08x%08x", mpt->mpt_fcport_page0.WWNN.High,
 482             mpt->mpt_fcport_page0.WWNN.Low);
 483
 484         snprintf(mpt->scinfo.fc.wwpn, sizeof (mpt->scinfo.fc.wwpn),
 485             "0x%08x%08x", mpt->mpt_fcport_page0.WWPN.High,
 486             mpt->mpt_fcport_page0.WWPN.Low);
 487
 488         SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
 489             "wwnn", CTLFLAG_RD, mpt->scinfo.fc.wwnn, 0,
 490             "World Wide Node Name");
 491
 492         SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
 493              "wwpn", CTLFLAG_RD, mpt->scinfo.fc.wwpn, 0,
 494              "World Wide Port Name");
 495
 496         MPT_LOCK(mpt);
 497         return (0);
 498 }
 499
 500 /*
 501  * Set FC configuration information.
 502  */
 503 static int
 504 mpt_set_initial_config_fc(struct mpt_softc *mpt)
 505 {
 506         CONFIG_PAGE_FC_PORT_1 fc;
 507         U32 fl;
 508         int r, doit = 0;
 509         int role;
 510
 511         r = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_FC_PORT, 1, 0,
 512             &fc.Header, FALSE, 5000);
 513         if (r) {
 514                 mpt_prt(mpt, "failed to read FC page 1 header\n");
 515                 return (mpt_fc_reset_link(mpt, 1));
 516         }
 517
 518         r = mpt_read_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_NVRAM, 0,
 519             &fc.Header, sizeof (fc), FALSE, 5000);
 520         if (r) {
 521                 mpt_prt(mpt, "failed to read FC page 1\n");
 522                 return (mpt_fc_reset_link(mpt, 1));
 523         }
 524         mpt2host_config_page_fc_port_1(&fc);
 525
 526         /*
 527          * Check our flags to make sure we support the role we want.
 528          */
 529         doit = 0;
 530         role = 0;
 531         fl = fc.Flags;
 532
 533         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_INIT) {
 534                 role |= MPT_ROLE_INITIATOR;
 535         }
 536         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG) {
 537                 role |= MPT_ROLE_TARGET;
 538         }
 539
 540         fl &= ~MPI_FCPORTPAGE1_FLAGS_PROT_MASK;
 541
 542         if (mpt->do_cfg_role == 0) {
 543                 role = mpt->cfg_role;
 544         } else {
 545                 mpt->do_cfg_role = 0;
 546         }
 547
 548         if (role != mpt->cfg_role) {
 549                 if (mpt->cfg_role & MPT_ROLE_INITIATOR) {
 550                         if ((role & MPT_ROLE_INITIATOR) == 0) {
 551                                 mpt_prt(mpt, "adding initiator role\n");
 552                                 fl |= MPI_FCPORTPAGE1_FLAGS_PROT_FCP_INIT;
 553                                 doit++;
 554                         } else {
 555                                 mpt_prt(mpt, "keeping initiator role\n");
 556                         }
 557                 } else if (role & MPT_ROLE_INITIATOR) {
 558                         mpt_prt(mpt, "removing initiator role\n");
 559                         doit++;
 560                 }
 561                 if (mpt->cfg_role & MPT_ROLE_TARGET) {
 562                         if ((role & MPT_ROLE_TARGET) == 0) {
 563                                 mpt_prt(mpt, "adding target role\n");
 564                                 fl |= MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG;
 565                                 doit++;
 566                         } else {
 567                                 mpt_prt(mpt, "keeping target role\n");
 568                         }
 569                 } else if (role & MPT_ROLE_TARGET) {
 570                         mpt_prt(mpt, "removing target role\n");
 571                         doit++;
 572                 }
 573                 mpt->role = mpt->cfg_role;
 574         }
 575
 576         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG) {
 577                 if ((fl & MPI_FCPORTPAGE1_FLAGS_TARGET_MODE_OXID) == 0) {
 578                         mpt_prt(mpt, "adding OXID option\n");
 579                         fl |= MPI_FCPORTPAGE1_FLAGS_TARGET_MODE_OXID;
 580                         doit++;
 581                 }
 582         }
 583
 584         if (doit) {
 585                 fc.Flags = fl;
 586                 host2mpt_config_page_fc_port_1(&fc);
 587                 r = mpt_write_cfg_page(mpt,
 588                     MPI_CONFIG_ACTION_PAGE_WRITE_NVRAM, 0, &fc.Header,
 589                     sizeof(fc), FALSE, 5000);
 590                 if (r != 0) {
 591                         mpt_prt(mpt, "failed to update NVRAM with changes\n");
 592                         return (0);
 593                 }
 594                 mpt_prt(mpt, "NOTE: NVRAM changes will not take "
 595                     "effect until next reboot or IOC reset\n");
 596         }
 597         return (0);
 598 }
 599
 600 static int
 601 mptsas_sas_io_unit_pg0(struct mpt_softc *mpt, struct mptsas_portinfo *portinfo)
 602 {
 603         ConfigExtendedPageHeader_t hdr;
 604         struct mptsas_phyinfo *phyinfo;
 605         SasIOUnitPage0_t *buffer;
 606         int error, len, i;
 607
 608         error = mpt_read_extcfg_header(mpt, MPI_SASIOUNITPAGE0_PAGEVERSION,
 609                                        0, 0, MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT,
 610                                        &hdr, 0, 10000);
 611         if (error)
 612                 goto out;
 613         if (hdr.ExtPageLength == 0) {
 614                 error = ENXIO;
 615                 goto out;
 616         }
 617
 618         len = hdr.ExtPageLength * 4;
 619         buffer = malloc(len, M_DEVBUF, M_NOWAIT|M_ZERO);
 620         if (buffer == NULL) {
 621                 error = ENOMEM;
 622                 goto out;
 623         }
 624
 625         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 626                                      0, &hdr, buffer, len, 0, 10000);
 627         if (error) {
 628                 free(buffer, M_DEVBUF);
 629                 goto out;
 630         }
 631
 632         portinfo->num_phys = buffer->NumPhys;
 633         portinfo->phy_info = malloc(sizeof(*portinfo->phy_info) *
 634             portinfo->num_phys, M_DEVBUF, M_NOWAIT|M_ZERO);
 635         if (portinfo->phy_info == NULL) {
 636                 free(buffer, M_DEVBUF);
 637                 error = ENOMEM;
 638                 goto out;
 639         }
 640
 641         for (i = 0; i < portinfo->num_phys; i++) {
 642                 phyinfo = &portinfo->phy_info[i];
 643                 phyinfo->phy_num = i;
 644                 phyinfo->port_id = buffer->PhyData[i].Port;
 645                 phyinfo->negotiated_link_rate =
 646                     buffer->PhyData[i].NegotiatedLinkRate;
 647                 phyinfo->handle =
 648                     le16toh(buffer->PhyData[i].ControllerDevHandle);
 649         }
 650
 651         free(buffer, M_DEVBUF);
 652 out:
 653         return (error);
 654 }
 655
 656 static int
 657 mptsas_sas_phy_pg0(struct mpt_softc *mpt, struct mptsas_phyinfo *phy_info,
 658         uint32_t form, uint32_t form_specific)
 659 {
 660         ConfigExtendedPageHeader_t hdr;
 661         SasPhyPage0_t *buffer;
 662         int error;
 663
 664         error = mpt_read_extcfg_header(mpt, MPI_SASPHY0_PAGEVERSION, 0, 0,
 665                                        MPI_CONFIG_EXTPAGETYPE_SAS_PHY, &hdr,
 666                                        0, 10000);
 667         if (error)
 668                 goto out;
 669         if (hdr.ExtPageLength == 0) {
 670                 error = ENXIO;
 671                 goto out;
 672         }
 673
 674         buffer = malloc(sizeof(SasPhyPage0_t), M_DEVBUF, M_NOWAIT|M_ZERO);
 675         if (buffer == NULL) {
 676                 error = ENOMEM;
 677                 goto out;
 678         }
 679
 680         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 681                                      form + form_specific, &hdr, buffer,
 682                                      sizeof(SasPhyPage0_t), 0, 10000);
 683         if (error) {
 684                 free(buffer, M_DEVBUF);
 685                 goto out;
 686         }
 687
 688         phy_info->hw_link_rate = buffer->HwLinkRate;
 689         phy_info->programmed_link_rate = buffer->ProgrammedLinkRate;
 690         phy_info->identify.dev_handle = le16toh(buffer->OwnerDevHandle);
 691         phy_info->attached.dev_handle = le16toh(buffer->AttachedDevHandle);
 692
 693         free(buffer, M_DEVBUF);
 694 out:
 695         return (error);
 696 }
 697
 698 static int
 699 mptsas_sas_device_pg0(struct mpt_softc *mpt, struct mptsas_devinfo *device_info,
 700         uint32_t form, uint32_t form_specific)
 701 {
 702         ConfigExtendedPageHeader_t hdr;
 703         SasDevicePage0_t *buffer;
 704         uint64_t sas_address;
 705         int error = 0;
 706
 707         bzero(device_info, sizeof(*device_info));
 708         error = mpt_read_extcfg_header(mpt, MPI_SASDEVICE0_PAGEVERSION, 0, 0,
 709                                        MPI_CONFIG_EXTPAGETYPE_SAS_DEVICE,
 710                                        &hdr, 0, 10000);
 711         if (error)
 712                 goto out;
 713         if (hdr.ExtPageLength == 0) {
 714                 error = ENXIO;
 715                 goto out;
 716         }
 717
 718         buffer = malloc(sizeof(SasDevicePage0_t), M_DEVBUF, M_NOWAIT|M_ZERO);
 719         if (buffer == NULL) {
 720                 error = ENOMEM;
 721                 goto out;
 722         }
 723
 724         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 725                                      form + form_specific, &hdr, buffer,
 726                                      sizeof(SasDevicePage0_t), 0, 10000);
 727         if (error) {
 728                 free(buffer, M_DEVBUF);
 729                 goto out;
 730         }
 731
 732         device_info->dev_handle = le16toh(buffer->DevHandle);
 733         device_info->parent_dev_handle = le16toh(buffer->ParentDevHandle);
 734         device_info->enclosure_handle = le16toh(buffer->EnclosureHandle);
 735         device_info->slot = le16toh(buffer->Slot);
 736         device_info->phy_num = buffer->PhyNum;
 737         device_info->physical_port = buffer->PhysicalPort;
 738         device_info->target_id = buffer->TargetID;
 739         device_info->bus = buffer->Bus;
 740         bcopy(&buffer->SASAddress, &sas_address, sizeof(uint64_t));
 741         device_info->sas_address = le64toh(sas_address);
 742         device_info->device_info = le32toh(buffer->DeviceInfo);
 743
 744         free(buffer, M_DEVBUF);
 745 out:
 746         return (error);
 747 }
 748
 749 /*
 750  * Read SAS configuration information. Nothing to do yet.
 751  */
 752 static int
 753 mpt_read_config_info_sas(struct mpt_softc *mpt)
 754 {
 755         struct mptsas_portinfo *portinfo;
 756         struct mptsas_phyinfo *phyinfo;
 757         int error, i;
 758
 759         portinfo = malloc(sizeof(*portinfo), M_DEVBUF, M_NOWAIT|M_ZERO);
 760         if (portinfo == NULL)
 761                 return (ENOMEM);
 762
 763         error = mptsas_sas_io_unit_pg0(mpt, portinfo);
 764         if (error) {
 765                 free(portinfo, M_DEVBUF);
 766                 return (0);
 767         }
 768
 769         for (i = 0; i < portinfo->num_phys; i++) {
 770                 phyinfo = &portinfo->phy_info[i];
 771                 error = mptsas_sas_phy_pg0(mpt, phyinfo,
 772                     (MPI_SAS_PHY_PGAD_FORM_PHY_NUMBER <<
 773                     MPI_SAS_PHY_PGAD_FORM_SHIFT), i);
 774                 if (error)
 775                         break;
 776                 error = mptsas_sas_device_pg0(mpt, &phyinfo->identify,
 777                     (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
 778                     MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
 779                     phyinfo->handle);
 780                 if (error)
 781                         break;
 782                 phyinfo->identify.phy_num = phyinfo->phy_num = i;
 783                 if (phyinfo->attached.dev_handle)
 784                         error = mptsas_sas_device_pg0(mpt,
 785                             &phyinfo->attached,
 786                             (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
 787                             MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
 788                             phyinfo->attached.dev_handle);
 789                 if (error)
 790                         break;
 791         }
 792         mpt->sas_portinfo = portinfo;
 793         return (0);
 794 }
 795
 796 static void
 797 mptsas_set_sata_wc(struct mpt_softc *mpt, struct mptsas_devinfo *devinfo,
 798         int enabled)
 799 {
 800         SataPassthroughRequest_t        *pass;
 801         request_t *req;
 802         int error, status;
 803
 804         req = mpt_get_request(mpt, 0);
 805         if (req == NULL)
 806                 return;
 807
 808         pass = req->req_vbuf;
 809         bzero(pass, sizeof(SataPassthroughRequest_t));
 810         pass->Function = MPI_FUNCTION_SATA_PASSTHROUGH;
 811         pass->TargetID = devinfo->target_id;
 812         pass->Bus = devinfo->bus;
 813         pass->PassthroughFlags = 0;
 814         pass->ConnectionRate = MPI_SATA_PT_REQ_CONNECT_RATE_NEGOTIATED;
 815         pass->DataLength = 0;
 816         pass->MsgContext = htole32(req->index | sata_pass_handler_id);
 817         pass->CommandFIS[0] = 0x27;
 818         pass->CommandFIS[1] = 0x80;
 819         pass->CommandFIS[2] = 0xef;
 820         pass->CommandFIS[3] = (enabled) ? 0x02 : 0x82;
 821         pass->CommandFIS[7] = 0x40;
 822         pass->CommandFIS[15] = 0x08;
 823
 824         mpt_check_doorbell(mpt);
 825         mpt_send_cmd(mpt, req);
 826         error = mpt_wait_req(mpt, req, REQ_STATE_DONE, REQ_STATE_DONE, 0,
 827                              10 * 1000);
 828         if (error) {
 829                 mpt_free_request(mpt, req);
 830                 printf("error %d sending passthrough\n", error);
 831                 return;
 832         }
 833
 834         status = le16toh(req->IOCStatus);
 835         if (status != MPI_IOCSTATUS_SUCCESS) {
 836                 mpt_free_request(mpt, req);
 837                 printf("IOCSTATUS %d\n", status);
 838                 return;
 839         }
 840
 841         mpt_free_request(mpt, req);
 842 }
 843
 844 /*
 845  * Set SAS configuration information. Nothing to do yet.
 846  */
 847 static int
 848 mpt_set_initial_config_sas(struct mpt_softc *mpt)
 849 {
 850         struct mptsas_phyinfo *phyinfo;
 851         int i;
 852
 853         if ((mpt_enable_sata_wc != -1) && (mpt->sas_portinfo != NULL)) {
 854                 for (i = 0; i < mpt->sas_portinfo->num_phys; i++) {
 855                         phyinfo = &mpt->sas_portinfo->phy_info[i];
 856                         if (phyinfo->attached.dev_handle == 0)
 857                                 continue;
 858                         if ((phyinfo->attached.device_info &
 859                             MPI_SAS_DEVICE_INFO_SATA_DEVICE) == 0)
 860                                 continue;
 861                         if (bootverbose)
 862                                 device_printf(mpt->dev,
 863                                     "%sabling SATA WC on phy %d\n",
 864                                     (mpt_enable_sata_wc) ? "En" : "Dis", i);
 865                         mptsas_set_sata_wc(mpt, &phyinfo->attached,
 866                                            mpt_enable_sata_wc);
 867                 }
 868         }
 869
 870         return (0);
 871 }
 872
 873 static int
 874 mpt_sata_pass_reply_handler(struct mpt_softc *mpt, request_t *req,
 875  uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
 876 {
 877
 878         if (req != NULL) {
 879                 if (reply_frame != NULL) {
 880                         req->IOCStatus = le16toh(reply_frame->IOCStatus);
 881                 }
 882                 req->state &= ~REQ_STATE_QUEUED;
 883                 req->state |= REQ_STATE_DONE;
 884                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
 885                 if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
 886                         wakeup(req);
 887                 } else if ((req->state & REQ_STATE_TIMEDOUT) != 0) {
 888                         /*
 889                          * Whew- we can free this request (late completion)
 890                          */
 891                         mpt_free_request(mpt, req);
 892                 }
 893         }
 894
 895         return (TRUE);
 896 }
 897
 898 /*
 899  * Read SCSI configuration information
 900  */
 901 static int
 902 mpt_read_config_info_spi(struct mpt_softc *mpt)
 903 {
 904         int rv, i;
 905
 906         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 0, 0,
 907             &mpt->mpt_port_page0.Header, FALSE, 5000);
 908         if (rv) {
 909                 return (-1);
 910         }
 911         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 0 Header: %x %x %x %x\n",
 912             mpt->mpt_port_page0.Header.PageVersion,
 913             mpt->mpt_port_page0.Header.PageLength,
 914             mpt->mpt_port_page0.Header.PageNumber,
 915             mpt->mpt_port_page0.Header.PageType);
 916
 917         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 1, 0,
 918             &mpt->mpt_port_page1.Header, FALSE, 5000);
 919         if (rv) {
 920                 return (-1);
 921         }
 922         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 1 Header: %x %x %x %x\n",
 923             mpt->mpt_port_page1.Header.PageVersion,
 924             mpt->mpt_port_page1.Header.PageLength,
 925             mpt->mpt_port_page1.Header.PageNumber,
 926             mpt->mpt_port_page1.Header.PageType);
 927
 928         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 2, 0,
 929             &mpt->mpt_port_page2.Header, FALSE, 5000);
 930         if (rv) {
 931                 return (-1);
 932         }
 933         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 2 Header: %x %x %x %x\n",
 934             mpt->mpt_port_page2.Header.PageVersion,
 935             mpt->mpt_port_page2.Header.PageLength,
 936             mpt->mpt_port_page2.Header.PageNumber,
 937             mpt->mpt_port_page2.Header.PageType);
 938
 939         for (i = 0; i < 16; i++) {
 940                 rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
 941                     0, i, &mpt->mpt_dev_page0[i].Header, FALSE, 5000);
 942                 if (rv) {
 943                         return (-1);
 944                 }
 945                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 946                     "SPI Target %d Device Page 0 Header: %x %x %x %x\n", i,
 947                     mpt->mpt_dev_page0[i].Header.PageVersion,
 948                     mpt->mpt_dev_page0[i].Header.PageLength,
 949                     mpt->mpt_dev_page0[i].Header.PageNumber,
 950                     mpt->mpt_dev_page0[i].Header.PageType);
 951
 952                 rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
 953                     1, i, &mpt->mpt_dev_page1[i].Header, FALSE, 5000);
 954                 if (rv) {
 955                         return (-1);
 956                 }
 957                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 958                     "SPI Target %d Device Page 1 Header: %x %x %x %x\n", i,
 959                     mpt->mpt_dev_page1[i].Header.PageVersion,
 960                     mpt->mpt_dev_page1[i].Header.PageLength,
 961                     mpt->mpt_dev_page1[i].Header.PageNumber,
 962                     mpt->mpt_dev_page1[i].Header.PageType);
 963         }
 964
 965         /*
 966          * At this point, we don't *have* to fail. As long as we have
 967          * valid config header information, we can (barely) lurch
 968          * along.
 969          */
 970
 971         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page0.Header,
 972             sizeof(mpt->mpt_port_page0), FALSE, 5000);
 973         if (rv) {
 974                 mpt_prt(mpt, "failed to read SPI Port Page 0\n");
 975         } else {
 976                 mpt2host_config_page_scsi_port_0(&mpt->mpt_port_page0);
 977                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
 978                     "SPI Port Page 0: Capabilities %x PhysicalInterface %x\n",
 979                     mpt->mpt_port_page0.Capabilities,
 980                     mpt->mpt_port_page0.PhysicalInterface);
 981         }
 982
 983         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page1.Header,
 984             sizeof(mpt->mpt_port_page1), FALSE, 5000);
 985         if (rv) {
 986                 mpt_prt(mpt, "failed to read SPI Port Page 1\n");
 987         } else {
 988                 mpt2host_config_page_scsi_port_1(&mpt->mpt_port_page1);
 989                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 990                     "SPI Port Page 1: Configuration %x OnBusTimerValue %x\n",
 991                     mpt->mpt_port_page1.Configuration,
 992                     mpt->mpt_port_page1.OnBusTimerValue);
 993         }
 994
 995         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page2.Header,
 996             sizeof(mpt->mpt_port_page2), FALSE, 5000);
 997         if (rv) {
 998                 mpt_prt(mpt, "failed to read SPI Port Page 2\n");
 999         } else {
1000                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1001                     "Port Page 2: Flags %x Settings %x\n",
1002                     mpt->mpt_port_page2.PortFlags,
1003                     mpt->mpt_port_page2.PortSettings);
1004                 mpt2host_config_page_scsi_port_2(&mpt->mpt_port_page2);
1005                 for (i = 0; i < 16; i++) {
1006                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1007                             " Port Page 2 Tgt %d: timo %x SF %x Flags %x\n",
1008                             i, mpt->mpt_port_page2.DeviceSettings[i].Timeout,
1009                             mpt->mpt_port_page2.DeviceSettings[i].SyncFactor,
1010                             mpt->mpt_port_page2.DeviceSettings[i].DeviceFlags);
1011                 }
1012         }
1013
1014         for (i = 0; i < 16; i++) {
1015                 rv = mpt_read_cur_cfg_page(mpt, i,
1016                     &mpt->mpt_dev_page0[i].Header, sizeof(*mpt->mpt_dev_page0),
1017                     FALSE, 5000);
1018                 if (rv) {
1019                         mpt_prt(mpt,
1020                             "cannot read SPI Target %d Device Page 0\n", i);
1021                         continue;
1022                 }
1023                 mpt2host_config_page_scsi_device_0(&mpt->mpt_dev_page0[i]);
1024                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1025                     "target %d page 0: Negotiated Params %x Information %x\n",
1026                     i, mpt->mpt_dev_page0[i].NegotiatedParameters,
1027                     mpt->mpt_dev_page0[i].Information);
1028
1029                 rv = mpt_read_cur_cfg_page(mpt, i,
1030                     &mpt->mpt_dev_page1[i].Header, sizeof(*mpt->mpt_dev_page1),
1031                     FALSE, 5000);
1032                 if (rv) {
1033                         mpt_prt(mpt,
1034                             "cannot read SPI Target %d Device Page 1\n", i);
1035                         continue;
1036                 }
1037                 mpt2host_config_page_scsi_device_1(&mpt->mpt_dev_page1[i]);
1038                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1039                     "target %d page 1: Requested Params %x Configuration %x\n",
1040                     i, mpt->mpt_dev_page1[i].RequestedParameters,
1041                     mpt->mpt_dev_page1[i].Configuration);
1042         }
1043         return (0);
1044 }
1045
1046 /*
1047  * Validate SPI configuration information.
1048  *
1049  * In particular, validate SPI Port Page 1.
1050  */
1051 static int
1052 mpt_set_initial_config_spi(struct mpt_softc *mpt)
1053 {
1054         int error, i, pp1val;
1055
1056         mpt->mpt_disc_enable = 0xff;
1057         mpt->mpt_tag_enable = 0;
1058
1059         pp1val = ((1 << mpt->mpt_ini_id) <<
1060             MPI_SCSIPORTPAGE1_CFG_SHIFT_PORT_RESPONSE_ID) | mpt->mpt_ini_id;
1061         if (mpt->mpt_port_page1.Configuration != pp1val) {
1062                 CONFIG_PAGE_SCSI_PORT_1 tmp;
1063
1064                 mpt_prt(mpt, "SPI Port Page 1 Config value bad (%x)- should "
1065                     "be %x\n", mpt->mpt_port_page1.Configuration, pp1val);
1066                 tmp = mpt->mpt_port_page1;
1067                 tmp.Configuration = pp1val;
1068                 host2mpt_config_page_scsi_port_1(&tmp);
1069                 error = mpt_write_cur_cfg_page(mpt, 0,
1070                     &tmp.Header, sizeof(tmp), FALSE, 5000);
1071                 if (error) {
1072                         return (-1);
1073                 }
1074                 error = mpt_read_cur_cfg_page(mpt, 0,
1075                     &tmp.Header, sizeof(tmp), FALSE, 5000);
1076                 if (error) {
1077                         return (-1);
1078                 }
1079                 mpt2host_config_page_scsi_port_1(&tmp);
1080                 if (tmp.Configuration != pp1val) {
1081                         mpt_prt(mpt,
1082                             "failed to reset SPI Port Page 1 Config value\n");
1083                         return (-1);
1084                 }
1085                 mpt->mpt_port_page1 = tmp;
1086         }
1087
1088         /*
1089          * The purpose of this exercise is to get
1090          * all targets back to async/narrow.
1091          *
1092          * We skip this step if the BIOS has already negotiated
1093          * speeds with the targets.
1094          */
1095         i = mpt->mpt_port_page2.PortSettings &
1096             MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
1097         if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS) {
1098                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1099                     "honoring BIOS transfer negotiations\n");
1100         } else {
1101                 for (i = 0; i < 16; i++) {
1102                         mpt->mpt_dev_page1[i].RequestedParameters = 0;
1103                         mpt->mpt_dev_page1[i].Configuration = 0;
1104                         (void) mpt_update_spi_config(mpt, i);
1105                 }
1106         }
1107         return (0);
1108 }
1109
1110 static int
1111 mpt_cam_enable(struct mpt_softc *mpt)
1112 {
1113         int error;
1114
1115         MPT_LOCK(mpt);
1116
1117         error = EIO;
1118         if (mpt->is_fc) {
1119                 if (mpt_read_config_info_fc(mpt)) {
1120                         goto out;
1121                 }
1122                 if (mpt_set_initial_config_fc(mpt)) {
1123                         goto out;
1124                 }
1125         } else if (mpt->is_sas) {
1126                 if (mpt_read_config_info_sas(mpt)) {
1127                         goto out;
1128                 }
1129                 if (mpt_set_initial_config_sas(mpt)) {
1130                         goto out;
1131                 }
1132         } else if (mpt->is_spi) {
1133                 if (mpt_read_config_info_spi(mpt)) {
1134                         goto out;
1135                 }
1136                 if (mpt_set_initial_config_spi(mpt)) {
1137                         goto out;
1138                 }
1139         }
1140         error = 0;
1141
1142 out:
1143         MPT_UNLOCK(mpt);
1144         return (error);
1145 }
1146
1147 static void
1148 mpt_cam_ready(struct mpt_softc *mpt)
1149 {
1150
1151         /*
1152          * If we're in target mode, hang out resources now
1153          * so we don't cause the world to hang talking to us.
1154          */
1155         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
1156                 /*
1157                  * Try to add some target command resources
1158                  */
1159                 MPT_LOCK(mpt);
1160                 if (mpt_add_target_commands(mpt) == FALSE) {
1161                         mpt_prt(mpt, "failed to add target commands\n");
1162                 }
1163                 MPT_UNLOCK(mpt);
1164         }
1165         mpt->ready = 1;
1166 }
1167
1168 static void
1169 mpt_cam_detach(struct mpt_softc *mpt)
1170 {
1171         mpt_handler_t handler;
1172
1173         MPT_LOCK(mpt);
1174         mpt->ready = 0;
1175         mpt_terminate_recovery_thread(mpt);
1176
1177         handler.reply_handler = mpt_scsi_reply_handler;
1178         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1179                                scsi_io_handler_id);
1180         handler.reply_handler = mpt_scsi_tmf_reply_handler;
1181         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1182                                scsi_tmf_handler_id);
1183         handler.reply_handler = mpt_fc_els_reply_handler;
1184         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1185                                fc_els_handler_id);
1186         handler.reply_handler = mpt_scsi_tgt_reply_handler;
1187         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1188                                mpt->scsi_tgt_handler_id);
1189         handler.reply_handler = mpt_sata_pass_reply_handler;
1190         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1191                                sata_pass_handler_id);
1192
1193         if (mpt->tmf_req != NULL) {
1194                 mpt->tmf_req->state = REQ_STATE_ALLOCATED;
1195                 mpt_free_request(mpt, mpt->tmf_req);
1196                 mpt->tmf_req = NULL;
1197         }
1198         if (mpt->sas_portinfo != NULL) {
1199                 free(mpt->sas_portinfo, M_DEVBUF);
1200                 mpt->sas_portinfo = NULL;
1201         }
1202
1203         if (mpt->sim != NULL) {
1204                 xpt_free_path(mpt->path);
1205                 xpt_bus_deregister(cam_sim_path(mpt->sim));
1206                 cam_sim_free(mpt->sim, TRUE);
1207                 mpt->sim = NULL;
1208         }
1209
1210         if (mpt->phydisk_sim != NULL) {
1211                 xpt_free_path(mpt->phydisk_path);
1212                 xpt_bus_deregister(cam_sim_path(mpt->phydisk_sim));
1213                 cam_sim_free(mpt->phydisk_sim, TRUE);
1214                 mpt->phydisk_sim = NULL;
1215         }
1216         MPT_UNLOCK(mpt);
1217 }
1218
1219 /* This routine is used after a system crash to dump core onto the swap device.
1220  */
1221 static void
1222 mpt_poll(struct cam_sim *sim)
1223 {
1224         struct mpt_softc *mpt;
1225
1226         mpt = (struct mpt_softc *)cam_sim_softc(sim);
1227         mpt_intr(mpt);
1228 }
1229
1230 /*
1231  * Watchdog timeout routine for SCSI requests.
1232  */
1233 static void
1234 mpt_timeout(void *arg)
1235 {
1236         union ccb        *ccb;
1237         struct mpt_softc *mpt;
1238         request_t        *req;
1239
1240         ccb = (union ccb *)arg;
1241         mpt = ccb->ccb_h.ccb_mpt_ptr;
1242
1243         MPT_LOCK_ASSERT(mpt);
1244         req = ccb->ccb_h.ccb_req_ptr;
1245         mpt_prt(mpt, "request %p:%u timed out for ccb %p (req->ccb %p)\n", req,
1246             req->serno, ccb, req->ccb);
1247 /* XXX: WHAT ARE WE TRYING TO DO HERE? */
1248         if ((req->state & REQ_STATE_QUEUED) == REQ_STATE_QUEUED) {
1249                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
1250                 TAILQ_INSERT_TAIL(&mpt->request_timeout_list, req, links);
1251                 req->state |= REQ_STATE_TIMEDOUT;
1252                 mpt_wakeup_recovery_thread(mpt);
1253         }
1254 }
1255
1256 /*
1257  * Callback routine from "bus_dmamap_load" or, in simple cases, called directly.
1258  *
1259  * Takes a list of physical segments and builds the SGL for SCSI IO command
1260  * and forwards the commard to the IOC after one last check that CAM has not
1261  * aborted the transaction.
1262  */
1263 static void
1264 mpt_execute_req_a64(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1265 {
1266         request_t *req, *trq;
1267         char *mpt_off;
1268         union ccb *ccb;
1269         struct mpt_softc *mpt;
1270         bus_addr_t chain_list_addr;
1271         int first_lim, seg, this_seg_lim;
1272         uint32_t addr, cur_off, flags, nxt_off, tf;
1273         void *sglp = NULL;
1274         MSG_REQUEST_HEADER *hdrp;
1275         SGE_SIMPLE64 *se;
1276         SGE_CHAIN64 *ce;
1277         int istgt = 0;
1278
1279         req = (request_t *)arg;
1280         ccb = req->ccb;
1281
1282         mpt = ccb->ccb_h.ccb_mpt_ptr;
1283         req = ccb->ccb_h.ccb_req_ptr;
1284
1285         hdrp = req->req_vbuf;
1286         mpt_off = req->req_vbuf;
1287
1288         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1289                 error = EFBIG;
1290         }
1291
1292         if (error == 0) {
1293                 switch (hdrp->Function) {
1294                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1295                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1296                         istgt = 0;
1297                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1298                         break;
1299                 case MPI_FUNCTION_TARGET_ASSIST:
1300                         istgt = 1;
1301                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1302                         break;
1303                 default:
1304                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req_a64\n",
1305                             hdrp->Function);
1306                         error = EINVAL;
1307                         break;
1308                 }
1309         }
1310
1311         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1312                 error = EFBIG;
1313                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1314                     nseg, mpt->max_seg_cnt);
1315         }
1316
1317 bad:
1318         if (error != 0) {
1319                 if (error != EFBIG && error != ENOMEM) {
1320                         mpt_prt(mpt, "mpt_execute_req_a64: err %d\n", error);
1321                 }
1322                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1323                         cam_status status;
1324                         mpt_freeze_ccb(ccb);
1325                         if (error == EFBIG) {
1326                                 status = CAM_REQ_TOO_BIG;
1327                         } else if (error == ENOMEM) {
1328                                 if (mpt->outofbeer == 0) {
1329                                         mpt->outofbeer = 1;
1330                                         xpt_freeze_simq(mpt->sim, 1);
1331                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1332                                             "FREEZEQ\n");
1333                                 }
1334                                 status = CAM_REQUEUE_REQ;
1335                         } else {
1336                                 status = CAM_REQ_CMP_ERR;
1337                         }
1338                         mpt_set_ccb_status(ccb, status);
1339                 }
1340                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1341                         request_t *cmd_req =
1342                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1343                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1344                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1345                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1346                 }
1347                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1348                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d", __LINE__));
1349                 xpt_done(ccb);
1350                 mpt_free_request(mpt, req);
1351                 return;
1352         }
1353
1354         /*
1355          * No data to transfer?
1356          * Just make a single simple SGL with zero length.
1357          */
1358
1359         if (mpt->verbose >= MPT_PRT_DEBUG) {
1360                 int tidx = ((char *)sglp) - mpt_off;
1361                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1362         }
1363
1364         if (nseg == 0) {
1365                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1366                 MPI_pSGE_SET_FLAGS(se1,
1367                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1368                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1369                 se1->FlagsLength = htole32(se1->FlagsLength);
1370                 goto out;
1371         }
1372
1373
1374         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1375         if (istgt == 0) {
1376                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1377                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1378                 }
1379         } else {
1380                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1381                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1382                 }
1383         }
1384
1385         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1386                 bus_dmasync_op_t op;
1387                 if (istgt == 0) {
1388                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1389                                 op = BUS_DMASYNC_PREREAD;
1390                         } else {
1391                                 op = BUS_DMASYNC_PREWRITE;
1392                         }
1393                 } else {
1394                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1395                                 op = BUS_DMASYNC_PREWRITE;
1396                         } else {
1397                                 op = BUS_DMASYNC_PREREAD;
1398                         }
1399                 }
1400                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1401         }
1402
1403         /*
1404          * Okay, fill in what we can at the end of the command frame.
1405          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1406          * the command frame.
1407          *
1408          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1409          * SIMPLE64 pointers and start doing CHAIN64 entries after
1410          * that.
1411          */
1412
1413         if (nseg < MPT_NSGL_FIRST(mpt)) {
1414                 first_lim = nseg;
1415         } else {
1416                 /*
1417                  * Leave room for CHAIN element
1418                  */
1419                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1420         }
1421
1422         se = (SGE_SIMPLE64 *) sglp;
1423         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1424                 tf = flags;
1425                 memset(se, 0, sizeof (*se));
1426                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1427                 se->Address.Low = htole32(dm_segs->ds_addr & 0xffffffff);
1428                 if (sizeof(bus_addr_t) > 4) {
1429                         addr = ((uint64_t)dm_segs->ds_addr) >> 32;
1430                         /* SAS1078 36GB limitation WAR */
1431                         if (mpt->is_1078 && (((uint64_t)dm_segs->ds_addr +
1432                             MPI_SGE_LENGTH(se->FlagsLength)) >> 32) == 9) {
1433                                 addr |= (1 << 31);
1434                                 tf |= MPI_SGE_FLAGS_LOCAL_ADDRESS;
1435                         }
1436                         se->Address.High = htole32(addr);
1437                 }
1438                 if (seg == first_lim - 1) {
1439                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1440                 }
1441                 if (seg == nseg - 1) {
1442                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1443                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1444                 }
1445                 MPI_pSGE_SET_FLAGS(se, tf);
1446                 se->FlagsLength = htole32(se->FlagsLength);
1447         }
1448
1449         if (seg == nseg) {
1450                 goto out;
1451         }
1452
1453         /*
1454          * Tell the IOC where to find the first chain element.
1455          */
1456         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1457         nxt_off = MPT_RQSL(mpt);
1458         trq = req;
1459
1460         /*
1461          * Make up the rest of the data segments out of a chain element
1462          * (contained in the current request frame) which points to
1463          * SIMPLE64 elements in the next request frame, possibly ending
1464          * with *another* chain element (if there's more).
1465          */
1466         while (seg < nseg) {
1467                 /*
1468                  * Point to the chain descriptor. Note that the chain
1469                  * descriptor is at the end of the *previous* list (whether
1470                  * chain or simple).
1471                  */
1472                 ce = (SGE_CHAIN64 *) se;
1473
1474                 /*
1475                  * Before we change our current pointer, make  sure we won't
1476                  * overflow the request area with this frame. Note that we
1477                  * test against 'greater than' here as it's okay in this case
1478                  * to have next offset be just outside the request area.
1479                  */
1480                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1481                         nxt_off = MPT_REQUEST_AREA;
1482                         goto next_chain;
1483                 }
1484
1485                 /*
1486                  * Set our SGE element pointer to the beginning of the chain
1487                  * list and update our next chain list offset.
1488                  */
1489                 se = (SGE_SIMPLE64 *) &mpt_off[nxt_off];
1490                 cur_off = nxt_off;
1491                 nxt_off += MPT_RQSL(mpt);
1492
1493                 /*
1494                  * Now initialize the chain descriptor.
1495                  */
1496                 memset(ce, 0, sizeof (*ce));
1497
1498                 /*
1499                  * Get the physical address of the chain list.
1500                  */
1501                 chain_list_addr = trq->req_pbuf;
1502                 chain_list_addr += cur_off;
1503                 if (sizeof (bus_addr_t) > 4) {
1504                         ce->Address.High =
1505                             htole32(((uint64_t)chain_list_addr) >> 32);
1506                 }
1507                 ce->Address.Low = htole32(chain_list_addr & 0xffffffff);
1508                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT |
1509                             MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1510
1511                 /*
1512                  * If we have more than a frame's worth of segments left,
1513                  * set up the chain list to have the last element be another
1514                  * chain descriptor.
1515                  */
1516                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1517                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1518                         /*
1519                          * The length of the chain is the length in bytes of the
1520                          * number of segments plus the next chain element.
1521                          *
1522                          * The next chain descriptor offset is the length,
1523                          * in words, of the number of segments.
1524                          */
1525                         ce->Length = (this_seg_lim - seg) *
1526                             sizeof (SGE_SIMPLE64);
1527                         ce->NextChainOffset = ce->Length >> 2;
1528                         ce->Length += sizeof (SGE_CHAIN64);
1529                 } else {
1530                         this_seg_lim = nseg;
1531                         ce->Length = (this_seg_lim - seg) *
1532                             sizeof (SGE_SIMPLE64);
1533                 }
1534                 ce->Length = htole16(ce->Length);
1535
1536                 /*
1537                  * Fill in the chain list SGE elements with our segment data.
1538                  *
1539                  * If we're the last element in this chain list, set the last
1540                  * element flag. If we're the completely last element period,
1541                  * set the end of list and end of buffer flags.
1542                  */
1543                 while (seg < this_seg_lim) {
1544                         tf = flags;
1545                         memset(se, 0, sizeof (*se));
1546                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1547                         se->Address.Low = htole32(dm_segs->ds_addr &
1548                             0xffffffff);
1549                         if (sizeof (bus_addr_t) > 4) {
1550                                 addr = ((uint64_t)dm_segs->ds_addr) >> 32;
1551                                 /* SAS1078 36GB limitation WAR */
1552                                 if (mpt->is_1078 &&
1553                                     (((uint64_t)dm_segs->ds_addr +
1554                                     MPI_SGE_LENGTH(se->FlagsLength)) >>
1555                                     32) == 9) {
1556                                         addr |= (1 << 31);
1557                                         tf |= MPI_SGE_FLAGS_LOCAL_ADDRESS;
1558                                 }
1559                                 se->Address.High = htole32(addr);
1560                         }
1561                         if (seg == this_seg_lim - 1) {
1562                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1563                         }
1564                         if (seg == nseg - 1) {
1565                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1566                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1567                         }
1568                         MPI_pSGE_SET_FLAGS(se, tf);
1569                         se->FlagsLength = htole32(se->FlagsLength);
1570                         se++;
1571                         seg++;
1572                         dm_segs++;
1573                 }
1574
1575     next_chain:
1576                 /*
1577                  * If we have more segments to do and we've used up all of
1578                  * the space in a request area, go allocate another one
1579                  * and chain to that.
1580                  */
1581                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1582                         request_t *nrq;
1583
1584                         nrq = mpt_get_request(mpt, FALSE);
1585
1586                         if (nrq == NULL) {
1587                                 error = ENOMEM;
1588                                 goto bad;
1589                         }
1590
1591                         /*
1592                          * Append the new request area on the tail of our list.
1593                          */
1594                         if ((trq = req->chain) == NULL) {
1595                                 req->chain = nrq;
1596                         } else {
1597                                 while (trq->chain != NULL) {
1598                                         trq = trq->chain;
1599                                 }
1600                                 trq->chain = nrq;
1601                         }
1602                         trq = nrq;
1603                         mpt_off = trq->req_vbuf;
1604                         if (mpt->verbose >= MPT_PRT_DEBUG) {
1605                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
1606                         }
1607                         nxt_off = 0;
1608                 }
1609         }
1610 out:
1611
1612         /*
1613          * Last time we need to check if this CCB needs to be aborted.
1614          */
1615         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1616                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1617                         request_t *cmd_req =
1618                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1619                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1620                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1621                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1622                 }
1623                 mpt_prt(mpt,
1624                     "mpt_execute_req_a64: I/O cancelled (status 0x%x)\n",
1625                     ccb->ccb_h.status & CAM_STATUS_MASK);
1626                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
1627                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
1628                 }
1629                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1630                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d", __LINE__));
1631                 xpt_done(ccb);
1632                 mpt_free_request(mpt, req);
1633                 return;
1634         }
1635
1636         ccb->ccb_h.status |= CAM_SIM_QUEUED;
1637         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
1638                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
1639                     mpt_timeout, ccb);
1640         }
1641         if (mpt->verbose > MPT_PRT_DEBUG) {
1642                 int nc = 0;
1643                 mpt_print_request(req->req_vbuf);
1644                 for (trq = req->chain; trq; trq = trq->chain) {
1645                         printf("  Additional Chain Area %d\n", nc++);
1646                         mpt_dump_sgl(trq->req_vbuf, 0);
1647                 }
1648         }
1649
1650         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1651                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1652                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
1653 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
1654                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
1655                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
1656                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
1657                 } else {
1658                         tgt->state = TGT_STATE_MOVING_DATA;
1659                 }
1660 #else
1661                 tgt->state = TGT_STATE_MOVING_DATA;
1662 #endif
1663         }
1664         mpt_send_cmd(mpt, req);
1665 }
1666
1667 static void
1668 mpt_execute_req(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1669 {
1670         request_t *req, *trq;
1671         char *mpt_off;
1672         union ccb *ccb;
1673         struct mpt_softc *mpt;
1674         int seg, first_lim;
1675         uint32_t flags, nxt_off;
1676         void *sglp = NULL;
1677         MSG_REQUEST_HEADER *hdrp;
1678         SGE_SIMPLE32 *se;
1679         SGE_CHAIN32 *ce;
1680         int istgt = 0;
1681
1682         req = (request_t *)arg;
1683         ccb = req->ccb;
1684
1685         mpt = ccb->ccb_h.ccb_mpt_ptr;
1686         req = ccb->ccb_h.ccb_req_ptr;
1687
1688         hdrp = req->req_vbuf;
1689         mpt_off = req->req_vbuf;
1690
1691
1692         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1693                 error = EFBIG;
1694         }
1695
1696         if (error == 0) {
1697                 switch (hdrp->Function) {
1698                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1699                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1700                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1701                         break;
1702                 case MPI_FUNCTION_TARGET_ASSIST:
1703                         istgt = 1;
1704                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1705                         break;
1706                 default:
1707                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req\n",
1708                             hdrp->Function);
1709                         error = EINVAL;
1710                         break;
1711                 }
1712         }
1713
1714         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1715                 error = EFBIG;
1716                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1717                     nseg, mpt->max_seg_cnt);
1718         }
1719
1720 bad:
1721         if (error != 0) {
1722                 if (error != EFBIG && error != ENOMEM) {
1723                         mpt_prt(mpt, "mpt_execute_req: err %d\n", error);
1724                 }
1725                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1726                         cam_status status;
1727                         mpt_freeze_ccb(ccb);
1728                         if (error == EFBIG) {
1729                                 status = CAM_REQ_TOO_BIG;
1730                         } else if (error == ENOMEM) {
1731                                 if (mpt->outofbeer == 0) {
1732                                         mpt->outofbeer = 1;
1733                                         xpt_freeze_simq(mpt->sim, 1);
1734                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1735                                             "FREEZEQ\n");
1736                                 }
1737                                 status = CAM_REQUEUE_REQ;
1738                         } else {
1739                                 status = CAM_REQ_CMP_ERR;
1740                         }
1741                         mpt_set_ccb_status(ccb, status);
1742                 }
1743                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1744                         request_t *cmd_req =
1745                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1746                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1747                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1748                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1749                 }
1750                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1751                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d", __LINE__));
1752                 xpt_done(ccb);
1753                 mpt_free_request(mpt, req);
1754                 return;
1755         }
1756
1757         /*
1758          * No data to transfer?
1759          * Just make a single simple SGL with zero length.
1760          */
1761
1762         if (mpt->verbose >= MPT_PRT_DEBUG) {
1763                 int tidx = ((char *)sglp) - mpt_off;
1764                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1765         }
1766
1767         if (nseg == 0) {
1768                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1769                 MPI_pSGE_SET_FLAGS(se1,
1770                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1771                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1772                 se1->FlagsLength = htole32(se1->FlagsLength);
1773                 goto out;
1774         }
1775
1776
1777         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
1778         if (istgt == 0) {
1779                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1780                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1781                 }
1782         } else {
1783                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1784                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1785                 }
1786         }
1787
1788         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1789                 bus_dmasync_op_t op;
1790                 if (istgt) {
1791                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1792                                 op = BUS_DMASYNC_PREREAD;
1793                         } else {
1794                                 op = BUS_DMASYNC_PREWRITE;
1795                         }
1796                 } else {
1797                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1798                                 op = BUS_DMASYNC_PREWRITE;
1799                         } else {
1800                                 op = BUS_DMASYNC_PREREAD;
1801                         }
1802                 }
1803                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1804         }
1805
1806         /*
1807          * Okay, fill in what we can at the end of the command frame.
1808          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1809          * the command frame.
1810          *
1811          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1812          * SIMPLE32 pointers and start doing CHAIN32 entries after
1813          * that.
1814          */
1815
1816         if (nseg < MPT_NSGL_FIRST(mpt)) {
1817                 first_lim = nseg;
1818         } else {
1819                 /*
1820                  * Leave room for CHAIN element
1821                  */
1822                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1823         }
1824
1825         se = (SGE_SIMPLE32 *) sglp;
1826         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1827                 uint32_t tf;
1828
1829                 memset(se, 0,sizeof (*se));
1830                 se->Address = htole32(dm_segs->ds_addr);
1831
1832                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1833                 tf = flags;
1834                 if (seg == first_lim - 1) {
1835                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1836                 }
1837                 if (seg == nseg - 1) {
1838                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1839                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1840                 }
1841                 MPI_pSGE_SET_FLAGS(se, tf);
1842                 se->FlagsLength = htole32(se->FlagsLength);
1843         }
1844
1845         if (seg == nseg) {
1846                 goto out;
1847         }
1848
1849         /*
1850          * Tell the IOC where to find the first chain element.
1851          */
1852         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1853         nxt_off = MPT_RQSL(mpt);
1854         trq = req;
1855
1856         /*
1857          * Make up the rest of the data segments out of a chain element
1858          * (contained in the current request frame) which points to
1859          * SIMPLE32 elements in the next request frame, possibly ending
1860          * with *another* chain element (if there's more).
1861          */
1862         while (seg < nseg) {
1863                 int this_seg_lim;
1864                 uint32_t tf, cur_off;
1865                 bus_addr_t chain_list_addr;
1866
1867                 /*
1868                  * Point to the chain descriptor. Note that the chain
1869                  * descriptor is at the end of the *previous* list (whether
1870                  * chain or simple).
1871                  */
1872                 ce = (SGE_CHAIN32 *) se;
1873
1874                 /*
1875                  * Before we change our current pointer, make  sure we won't
1876                  * overflow the request area with this frame. Note that we
1877                  * test against 'greater than' here as it's okay in this case
1878                  * to have next offset be just outside the request area.
1879                  */
1880                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1881                         nxt_off = MPT_REQUEST_AREA;
1882                         goto next_chain;
1883                 }
1884
1885                 /*
1886                  * Set our SGE element pointer to the beginning of the chain
1887                  * list and update our next chain list offset.
1888                  */
1889                 se = (SGE_SIMPLE32 *) &mpt_off[nxt_off];
1890                 cur_off = nxt_off;
1891                 nxt_off += MPT_RQSL(mpt);
1892
1893                 /*
1894                  * Now initialize the chain descriptor.
1895                  */
1896                 memset(ce, 0, sizeof (*ce));
1897
1898                 /*
1899                  * Get the physical address of the chain list.
1900                  */
1901                 chain_list_addr = trq->req_pbuf;
1902                 chain_list_addr += cur_off;
1903
1904
1905
1906                 ce->Address = htole32(chain_list_addr);
1907                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
1908
1909
1910                 /*
1911                  * If we have more than a frame's worth of segments left,
1912                  * set up the chain list to have the last element be another
1913                  * chain descriptor.
1914                  */
1915                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1916                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1917                         /*
1918                          * The length of the chain is the length in bytes of the
1919                          * number of segments plus the next chain element.
1920                          *
1921                          * The next chain descriptor offset is the length,
1922                          * in words, of the number of segments.
1923                          */
1924                         ce->Length = (this_seg_lim - seg) *
1925                             sizeof (SGE_SIMPLE32);
1926                         ce->NextChainOffset = ce->Length >> 2;
1927                         ce->Length += sizeof (SGE_CHAIN32);
1928                 } else {
1929                         this_seg_lim = nseg;
1930                         ce->Length = (this_seg_lim - seg) *
1931                             sizeof (SGE_SIMPLE32);
1932                 }
1933                 ce->Length = htole16(ce->Length);
1934
1935                 /*
1936                  * Fill in the chain list SGE elements with our segment data.
1937                  *
1938                  * If we're the last element in this chain list, set the last
1939                  * element flag. If we're the completely last element period,
1940                  * set the end of list and end of buffer flags.
1941                  */
1942                 while (seg < this_seg_lim) {
1943                         memset(se, 0, sizeof (*se));
1944                         se->Address = htole32(dm_segs->ds_addr);
1945
1946                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1947                         tf = flags;
1948                         if (seg == this_seg_lim - 1) {
1949                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1950                         }
1951                         if (seg == nseg - 1) {
1952                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1953                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1954                         }
1955                         MPI_pSGE_SET_FLAGS(se, tf);
1956                         se->FlagsLength = htole32(se->FlagsLength);
1957                         se++;
1958                         seg++;
1959                         dm_segs++;
1960                 }
1961
1962     next_chain:
1963                 /*
1964                  * If we have more segments to do and we've used up all of
1965                  * the space in a request area, go allocate another one
1966                  * and chain to that.
1967                  */
1968                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1969                         request_t *nrq;
1970
1971                         nrq = mpt_get_request(mpt, FALSE);
1972
1973                         if (nrq == NULL) {
1974                                 error = ENOMEM;
1975                                 goto bad;
1976                         }
1977
1978                         /*
1979                          * Append the new request area on the tail of our list.
1980                          */
1981                         if ((trq = req->chain) == NULL) {
1982                                 req->chain = nrq;
1983                         } else {
1984                                 while (trq->chain != NULL) {
1985                                         trq = trq->chain;
1986                                 }
1987                                 trq->chain = nrq;
1988                         }
1989                         trq = nrq;
1990                         mpt_off = trq->req_vbuf;
1991                         if (mpt->verbose >= MPT_PRT_DEBUG) {
1992                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
1993                         }
1994                         nxt_off = 0;
1995                 }
1996         }
1997 out:
1998
1999         /*
2000          * Last time we need to check if this CCB needs to be aborted.
2001          */
2002         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2003                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2004                         request_t *cmd_req =
2005                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2006                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
2007                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
2008                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
2009                 }
2010                 mpt_prt(mpt,
2011                     "mpt_execute_req: I/O cancelled (status 0x%x)\n",
2012                     ccb->ccb_h.status & CAM_STATUS_MASK);
2013                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
2014                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2015                 }
2016                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2017                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d", __LINE__));
2018                 xpt_done(ccb);
2019                 mpt_free_request(mpt, req);
2020                 return;
2021         }
2022
2023         ccb->ccb_h.status |= CAM_SIM_QUEUED;
2024         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
2025                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
2026                     mpt_timeout, ccb);
2027         }
2028         if (mpt->verbose > MPT_PRT_DEBUG) {
2029                 int nc = 0;
2030                 mpt_print_request(req->req_vbuf);
2031                 for (trq = req->chain; trq; trq = trq->chain) {
2032                         printf("  Additional Chain Area %d\n", nc++);
2033                         mpt_dump_sgl(trq->req_vbuf, 0);
2034                 }
2035         }
2036
2037         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2038                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2039                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
2040 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
2041                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2042                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
2043                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
2044                 } else {
2045                         tgt->state = TGT_STATE_MOVING_DATA;
2046                 }
2047 #else
2048                 tgt->state = TGT_STATE_MOVING_DATA;
2049 #endif
2050         }
2051         mpt_send_cmd(mpt, req);
2052 }
2053
2054 static void
2055 mpt_start(struct cam_sim *sim, union ccb *ccb)
2056 {
2057         request_t *req;
2058         struct mpt_softc *mpt;
2059         MSG_SCSI_IO_REQUEST *mpt_req;
2060         struct ccb_scsiio *csio = &ccb->csio;
2061         struct ccb_hdr *ccbh = &ccb->ccb_h;
2062         bus_dmamap_callback_t *cb;
2063         target_id_t tgt;
2064         int raid_passthru;
2065
2066         /* Get the pointer for the physical addapter */
2067         mpt = ccb->ccb_h.ccb_mpt_ptr;
2068         raid_passthru = (sim == mpt->phydisk_sim);
2069
2070         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
2071                 if (mpt->outofbeer == 0) {
2072                         mpt->outofbeer = 1;
2073                         xpt_freeze_simq(mpt->sim, 1);
2074                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
2075                 }
2076                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2077                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
2078                 xpt_done(ccb);
2079                 return;
2080         }
2081 #ifdef  INVARIANTS
2082         mpt_req_not_spcl(mpt, req, "mpt_start", __LINE__);
2083 #endif
2084
2085         if (sizeof (bus_addr_t) > 4) {
2086                 cb = mpt_execute_req_a64;
2087         } else {
2088                 cb = mpt_execute_req;
2089         }
2090
2091         /*
2092          * Link the ccb and the request structure so we can find
2093          * the other knowing either the request or the ccb
2094          */
2095         req->ccb = ccb;
2096         ccb->ccb_h.ccb_req_ptr = req;
2097
2098         /* Now we build the command for the IOC */
2099         mpt_req = req->req_vbuf;
2100         memset(mpt_req, 0, sizeof (MSG_SCSI_IO_REQUEST));
2101
2102         mpt_req->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2103         if (raid_passthru) {
2104                 mpt_req->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2105                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
2106                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2107                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
2108                         xpt_done(ccb);
2109                         return;
2110                 }
2111                 mpt_req->Bus = 0;       /* we never set bus here */
2112         } else {
2113                 tgt = ccb->ccb_h.target_id;
2114                 mpt_req->Bus = 0;       /* XXX */
2115
2116         }
2117         mpt_req->SenseBufferLength =
2118                 (csio->sense_len < MPT_SENSE_SIZE) ?
2119                  csio->sense_len : MPT_SENSE_SIZE;
2120
2121         /*
2122          * We use the message context to find the request structure when we
2123          * Get the command completion interrupt from the IOC.
2124          */
2125         mpt_req->MsgContext = htole32(req->index | scsi_io_handler_id);
2126
2127         /* Which physical device to do the I/O on */
2128         mpt_req->TargetID = tgt;
2129
2130         /* We assume a single level LUN type */
2131         if (ccb->ccb_h.target_lun >= MPT_MAX_LUNS) {
2132                 mpt_req->LUN[0] = 0x40 | ((ccb->ccb_h.target_lun >> 8) & 0x3f);
2133                 mpt_req->LUN[1] = ccb->ccb_h.target_lun & 0xff;
2134         } else {
2135                 mpt_req->LUN[1] = ccb->ccb_h.target_lun;
2136         }
2137
2138         /* Set the direction of the transfer */
2139         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2140                 mpt_req->Control = MPI_SCSIIO_CONTROL_READ;
2141         } else if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2142                 mpt_req->Control = MPI_SCSIIO_CONTROL_WRITE;
2143         } else {
2144                 mpt_req->Control = MPI_SCSIIO_CONTROL_NODATATRANSFER;
2145         }
2146
2147         if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0) {
2148                 switch(ccb->csio.tag_action) {
2149                 case MSG_HEAD_OF_Q_TAG:
2150                         mpt_req->Control |= MPI_SCSIIO_CONTROL_HEADOFQ;
2151                         break;
2152                 case MSG_ACA_TASK:
2153                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ACAQ;
2154                         break;
2155                 case MSG_ORDERED_Q_TAG:
2156                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ORDEREDQ;
2157                         break;
2158                 case MSG_SIMPLE_Q_TAG:
2159                 default:
2160                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2161                         break;
2162                 }
2163         } else {
2164                 if (mpt->is_fc || mpt->is_sas) {
2165                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2166                 } else {
2167                         /* XXX No such thing for a target doing packetized. */
2168                         mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
2169                 }
2170         }
2171
2172         if (mpt->is_spi) {
2173                 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) {
2174                         mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT;
2175                 }
2176         }
2177         mpt_req->Control = htole32(mpt_req->Control);
2178
2179         /* Copy the scsi command block into place */
2180         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
2181                 bcopy(csio->cdb_io.cdb_ptr, mpt_req->CDB, csio->cdb_len);
2182         } else {
2183                 bcopy(csio->cdb_io.cdb_bytes, mpt_req->CDB, csio->cdb_len);
2184         }
2185
2186         mpt_req->CDBLength = csio->cdb_len;
2187         mpt_req->DataLength = htole32(csio->dxfer_len);
2188         mpt_req->SenseBufferLowAddr = htole32(req->sense_pbuf);
2189
2190         /*
2191          * Do a *short* print here if we're set to MPT_PRT_DEBUG
2192          */
2193         if (mpt->verbose == MPT_PRT_DEBUG) {
2194                 U32 df;
2195                 mpt_prt(mpt, "mpt_start: %s op 0x%x ",
2196                     (mpt_req->Function == MPI_FUNCTION_SCSI_IO_REQUEST)?
2197                     "SCSI_IO_REQUEST" : "SCSI_IO_PASSTHRU", mpt_req->CDB[0]);
2198                 df = mpt_req->Control & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
2199                 if (df != MPI_SCSIIO_CONTROL_NODATATRANSFER) {
2200                         mpt_prtc(mpt, "(%s %u byte%s ",
2201                             (df == MPI_SCSIIO_CONTROL_READ)?
2202                             "read" : "write",  csio->dxfer_len,
2203                             (csio->dxfer_len == 1)? ")" : "s)");
2204                 }
2205                 mpt_prtc(mpt, "tgt %u lun %u req %p:%u\n", tgt,
2206                     ccb->ccb_h.target_lun, req, req->serno);
2207         }
2208
2209         /*
2210          * If we have any data to send with this command map it into bus space.
2211          */
2212         if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2213                 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) {
2214                         /*
2215                          * We've been given a pointer to a single buffer.
2216                          */
2217                         if ((ccbh->flags & CAM_DATA_PHYS) == 0) {
2218                                 /*
2219                                  * Virtual address that needs to translated into
2220                                  * one or more physical address ranges.
2221                                  */
2222                                 int error;
2223                                 int s = splsoftvm();
2224                                 error = bus_dmamap_load(mpt->buffer_dmat,
2225                                     req->dmap, csio->data_ptr, csio->dxfer_len,
2226                                     cb, req, 0);
2227                                 splx(s);
2228                                 if (error == EINPROGRESS) {
2229                                         /*
2230                                          * So as to maintain ordering,
2231                                          * freeze the controller queue
2232                                          * until our mapping is
2233                                          * returned.
2234                                          */
2235                                         xpt_freeze_simq(mpt->sim, 1);
2236                                         ccbh->status |= CAM_RELEASE_SIMQ;
2237                                 }
2238                         } else {
2239                                 /*
2240                                  * We have been given a pointer to single
2241                                  * physical buffer.
2242                                  */
2243                                 struct bus_dma_segment seg;
2244                                 seg.ds_addr =
2245                                     (bus_addr_t)(vm_offset_t)csio->data_ptr;
2246                                 seg.ds_len = csio->dxfer_len;
2247                                 (*cb)(req, &seg, 1, 0);
2248                         }
2249                 } else {
2250                         /*
2251                          * We have been given a list of addresses.
2252                          * This case could be easily supported but they are not
2253                          * currently generated by the CAM subsystem so there
2254                          * is no point in wasting the time right now.
2255                          */
2256                         struct bus_dma_segment *segs;
2257                         if ((ccbh->flags & CAM_SG_LIST_PHYS) == 0) {
2258                                 (*cb)(req, NULL, 0, EFAULT);
2259                         } else {
2260                                 /* Just use the segments provided */
2261                                 segs = (struct bus_dma_segment *)csio->data_ptr;
2262                                 (*cb)(req, segs, csio->sglist_cnt, 0);
2263                         }
2264                 }
2265         } else {
2266                 (*cb)(req, NULL, 0, 0);
2267         }
2268 }
2269
2270 static int
2271 mpt_bus_reset(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun,
2272     int sleep_ok)
2273 {
2274         int   error;
2275         uint16_t status;
2276         uint8_t response;
2277
2278         error = mpt_scsi_send_tmf(mpt,
2279             (tgt != CAM_TARGET_WILDCARD || lun != CAM_LUN_WILDCARD) ?
2280             MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET :
2281             MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
2282             mpt->is_fc ? MPI_SCSITASKMGMT_MSGFLAGS_LIP_RESET_OPTION : 0,
2283             0,  /* XXX How do I get the channel ID? */
2284             tgt != CAM_TARGET_WILDCARD ? tgt : 0,
2285             lun != CAM_LUN_WILDCARD ? lun : 0,
2286             0, sleep_ok);
2287
2288         if (error != 0) {
2289                 /*
2290                  * mpt_scsi_send_tmf hard resets on failure, so no
2291                  * need to do so here.
2292                  */
2293                 mpt_prt(mpt,
2294                     "mpt_bus_reset: mpt_scsi_send_tmf returned %d\n", error);
2295                 return (EIO);
2296         }
2297
2298         /* Wait for bus reset to be processed by the IOC. */
2299         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
2300             REQ_STATE_DONE, sleep_ok, 5000);
2301
2302         status = le16toh(mpt->tmf_req->IOCStatus);
2303         response = mpt->tmf_req->ResponseCode;
2304         mpt->tmf_req->state = REQ_STATE_FREE;
2305
2306         if (error) {
2307                 mpt_prt(mpt, "mpt_bus_reset: Reset timed-out. "
2308                     "Resetting controller.\n");
2309                 mpt_reset(mpt, TRUE);
2310                 return (ETIMEDOUT);
2311         }
2312
2313         if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
2314                 mpt_prt(mpt, "mpt_bus_reset: TMF IOC Status 0x%x. "
2315                     "Resetting controller.\n", status);
2316                 mpt_reset(mpt, TRUE);
2317                 return (EIO);
2318         }
2319
2320         if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
2321             response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
2322                 mpt_prt(mpt, "mpt_bus_reset: TMF Response 0x%x. "
2323                     "Resetting controller.\n", response);
2324                 mpt_reset(mpt, TRUE);
2325                 return (EIO);
2326         }
2327         return (0);
2328 }
2329
2330 static int
2331 mpt_fc_reset_link(struct mpt_softc *mpt, int dowait)
2332 {
2333         int r = 0;
2334         request_t *req;
2335         PTR_MSG_FC_PRIMITIVE_SEND_REQUEST fc;
2336
2337         req = mpt_get_request(mpt, FALSE);
2338         if (req == NULL) {
2339                 return (ENOMEM);
2340         }
2341         fc = req->req_vbuf;
2342         memset(fc, 0, sizeof(*fc));
2343         fc->SendFlags = MPI_FC_PRIM_SEND_FLAGS_RESET_LINK;
2344         fc->Function = MPI_FUNCTION_FC_PRIMITIVE_SEND;
2345         fc->MsgContext = htole32(req->index | fc_els_handler_id);
2346         mpt_send_cmd(mpt, req);
2347         if (dowait) {
2348                 r = mpt_wait_req(mpt, req, REQ_STATE_DONE,
2349                     REQ_STATE_DONE, FALSE, 60 * 1000);
2350                 if (r == 0) {
2351                         mpt_free_request(mpt, req);
2352                 }
2353         }
2354         return (r);
2355 }
2356
2357 static int
2358 mpt_cam_event(struct mpt_softc *mpt, request_t *req,
2359               MSG_EVENT_NOTIFY_REPLY *msg)
2360 {
2361         uint32_t data0, data1;
2362
2363         data0 = le32toh(msg->Data[0]);
2364         data1 = le32toh(msg->Data[1]);
2365         switch(msg->Event & 0xFF) {
2366         case MPI_EVENT_UNIT_ATTENTION:
2367                 mpt_prt(mpt, "UNIT ATTENTION: Bus: 0x%02x TargetID: 0x%02x\n",
2368                     (data0 >> 8) & 0xff, data0 & 0xff);
2369                 break;
2370
2371         case MPI_EVENT_IOC_BUS_RESET:
2372                 /* We generated a bus reset */
2373                 mpt_prt(mpt, "IOC Generated Bus Reset Port: %d\n",
2374                     (data0 >> 8) & 0xff);
2375                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2376                 break;
2377
2378         case MPI_EVENT_EXT_BUS_RESET:
2379                 /* Someone else generated a bus reset */
2380                 mpt_prt(mpt, "External Bus Reset Detected\n");
2381                 /*
2382                  * These replies don't return EventData like the MPI
2383                  * spec says they do
2384                  */
2385                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2386                 break;
2387
2388         case MPI_EVENT_RESCAN:
2389 #if __FreeBSD_version >= 600000
2390         {
2391                 union ccb *ccb;
2392                 uint32_t pathid;
2393                 /*
2394                  * In general this means a device has been added to the loop.
2395                  */
2396                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2397                 if (mpt->ready == 0) {
2398                         break;
2399                 }
2400                 if (mpt->phydisk_sim) {
2401                         pathid = cam_sim_path(mpt->phydisk_sim);
2402                 } else {
2403                         pathid = cam_sim_path(mpt->sim);
2404                 }
2405                 /*
2406                  * Allocate a CCB, create a wildcard path for this bus,
2407                  * and schedule a rescan.
2408                  */
2409                 ccb = xpt_alloc_ccb_nowait();
2410                 if (ccb == NULL) {
2411                         mpt_prt(mpt, "unable to alloc CCB for rescan\n");
2412                         break;
2413                 }
2414
2415                 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, pathid,
2416                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2417                         mpt_prt(mpt, "unable to create path for rescan\n");
2418                         xpt_free_ccb(ccb);
2419                         break;
2420                 }
2421                 xpt_rescan(ccb);
2422                 break;
2423         }
2424 #else
2425                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2426                 break;
2427 #endif
2428         case MPI_EVENT_LINK_STATUS_CHANGE:
2429                 mpt_prt(mpt, "Port %d: LinkState: %s\n",
2430                     (data1 >> 8) & 0xff,
2431                     ((data0 & 0xff) == 0)?  "Failed" : "Active");
2432                 break;
2433
2434         case MPI_EVENT_LOOP_STATE_CHANGE:
2435                 switch ((data0 >> 16) & 0xff) {
2436                 case 0x01:
2437                         mpt_prt(mpt,
2438                             "Port 0x%x: FC LinkEvent: LIP(%02x,%02x) "
2439                             "(Loop Initialization)\n",
2440                             (data1 >> 8) & 0xff,
2441                             (data0 >> 8) & 0xff,
2442                             (data0     ) & 0xff);
2443                         switch ((data0 >> 8) & 0xff) {
2444                         case 0xF7:
2445                                 if ((data0 & 0xff) == 0xF7) {
2446                                         mpt_prt(mpt, "Device needs AL_PA\n");
2447                                 } else {
2448                                         mpt_prt(mpt, "Device %02x doesn't like "
2449                                             "FC performance\n",
2450                                             data0 & 0xFF);
2451                                 }
2452                                 break;
2453                         case 0xF8:
2454                                 if ((data0 & 0xff) == 0xF7) {
2455                                         mpt_prt(mpt, "Device had loop failure "
2456                                             "at its receiver prior to acquiring"
2457                                             " AL_PA\n");
2458                                 } else {
2459                                         mpt_prt(mpt, "Device %02x detected loop"
2460                                             " failure at its receiver\n",
2461                                             data0 & 0xFF);
2462                                 }
2463                                 break;
2464                         default:
2465                                 mpt_prt(mpt, "Device %02x requests that device "
2466                                     "%02x reset itself\n",
2467                                     data0 & 0xFF,
2468                                     (data0 >> 8) & 0xFF);
2469                                 break;
2470                         }
2471                         break;
2472                 case 0x02:
2473                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2474                             "LPE(%02x,%02x) (Loop Port Enable)\n",
2475                             (data1 >> 8) & 0xff, /* Port */
2476                             (data0 >>  8) & 0xff, /* Character 3 */
2477                             (data0      ) & 0xff  /* Character 4 */);
2478                         break;
2479                 case 0x03:
2480                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2481                             "LPB(%02x,%02x) (Loop Port Bypass)\n",
2482                             (data1 >> 8) & 0xff, /* Port */
2483                             (data0 >> 8) & 0xff, /* Character 3 */
2484                             (data0     ) & 0xff  /* Character 4 */);
2485                         break;
2486                 default:
2487                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: Unknown "
2488                             "FC event (%02x %02x %02x)\n",
2489                             (data1 >> 8) & 0xff, /* Port */
2490                             (data0 >> 16) & 0xff, /* Event */
2491                             (data0 >>  8) & 0xff, /* Character 3 */
2492                             (data0      ) & 0xff  /* Character 4 */);
2493                 }
2494                 break;
2495
2496         case MPI_EVENT_LOGOUT:
2497                 mpt_prt(mpt, "FC Logout Port: %d N_PortID: %02x\n",
2498                     (data1 >> 8) & 0xff, data0);
2499                 break;
2500         case MPI_EVENT_QUEUE_FULL:
2501         {
2502                 struct cam_sim *sim;
2503                 struct cam_path *tmppath;
2504                 struct ccb_relsim crs;
2505                 PTR_EVENT_DATA_QUEUE_FULL pqf;
2506                 lun_id_t lun_id;
2507
2508                 pqf = (PTR_EVENT_DATA_QUEUE_FULL)msg->Data;
2509                 pqf->CurrentDepth = le16toh(pqf->CurrentDepth);
2510                 mpt_prt(mpt, "QUEUE FULL EVENT: Bus 0x%02x Target 0x%02x Depth "
2511                     "%d\n", pqf->Bus, pqf->TargetID, pqf->CurrentDepth);
2512                 if (mpt->phydisk_sim && mpt_is_raid_member(mpt,
2513                     pqf->TargetID) != 0) {
2514                         sim = mpt->phydisk_sim;
2515                 } else {
2516                         sim = mpt->sim;
2517                 }
2518                 for (lun_id = 0; lun_id < MPT_MAX_LUNS; lun_id++) {
2519                         if (xpt_create_path(&tmppath, NULL, cam_sim_path(sim),
2520                             pqf->TargetID, lun_id) != CAM_REQ_CMP) {
2521                                 mpt_prt(mpt, "unable to create a path to send "
2522                                     "XPT_REL_SIMQ");
2523                                 break;
2524                         }
2525                         xpt_setup_ccb(&crs.ccb_h, tmppath, 5);
2526                         crs.ccb_h.func_code = XPT_REL_SIMQ;
2527                         crs.ccb_h.flags = CAM_DEV_QFREEZE;
2528                         crs.release_flags = RELSIM_ADJUST_OPENINGS;
2529                         crs.openings = pqf->CurrentDepth - 1;
2530                         xpt_action((union ccb *)&crs);
2531                         if (crs.ccb_h.status != CAM_REQ_CMP) {
2532                                 mpt_prt(mpt, "XPT_REL_SIMQ failed\n");
2533                         }
2534                         xpt_free_path(tmppath);
2535                 }
2536                 break;
2537         }
2538         case MPI_EVENT_IR_RESYNC_UPDATE:
2539                 mpt_prt(mpt, "IR resync update %d completed\n",
2540                     (data0 >> 16) & 0xff);
2541                 break;
2542         case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
2543         {
2544                 union ccb *ccb;
2545                 struct cam_sim *sim;
2546                 struct cam_path *tmppath;
2547                 PTR_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE psdsc;
2548
2549                 psdsc = (PTR_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE)msg->Data;
2550                 if (mpt->phydisk_sim && mpt_is_raid_member(mpt,
2551                     psdsc->TargetID) != 0)
2552                         sim = mpt->phydisk_sim;
2553                 else
2554                         sim = mpt->sim;
2555                 switch(psdsc->ReasonCode) {
2556                 case MPI_EVENT_SAS_DEV_STAT_RC_ADDED:
2557                         ccb = xpt_alloc_ccb_nowait();
2558                         if (ccb == NULL) {
2559                                 mpt_prt(mpt,
2560                                     "unable to alloc CCB for rescan\n");
2561                                 break;
2562                         }
2563                         if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
2564                             cam_sim_path(sim), psdsc->TargetID,
2565                             CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2566                                 mpt_prt(mpt,
2567                                     "unable to create path for rescan\n");
2568                                 xpt_free_ccb(ccb);
2569                                 break;
2570                         }
2571                         xpt_rescan(ccb);
2572                         break;
2573                 case MPI_EVENT_SAS_DEV_STAT_RC_NOT_RESPONDING:
2574                         if (xpt_create_path(&tmppath, NULL, cam_sim_path(sim),
2575                             psdsc->TargetID, CAM_LUN_WILDCARD) !=
2576                             CAM_REQ_CMP) {
2577                                 mpt_prt(mpt,
2578                                     "unable to create path for async event");
2579                                 break;
2580                         }
2581                         xpt_async(AC_LOST_DEVICE, tmppath, NULL);
2582                         xpt_free_path(tmppath);
2583                         break;
2584                 case MPI_EVENT_SAS_DEV_STAT_RC_CMPL_INTERNAL_DEV_RESET:
2585                 case MPI_EVENT_SAS_DEV_STAT_RC_CMPL_TASK_ABORT_INTERNAL:
2586                 case MPI_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
2587                         break;
2588                 default:
2589                         mpt_lprt(mpt, MPT_PRT_WARN,
2590                             "SAS device status change: Bus: 0x%02x TargetID: "
2591                             "0x%02x ReasonCode: 0x%02x\n", psdsc->Bus,
2592                             psdsc->TargetID, psdsc->ReasonCode);
2593                         break;
2594                 }
2595                 break;
2596         }
2597         case MPI_EVENT_SAS_DISCOVERY_ERROR:
2598         {
2599                 PTR_EVENT_DATA_DISCOVERY_ERROR pde;
2600
2601                 pde = (PTR_EVENT_DATA_DISCOVERY_ERROR)msg->Data;
2602                 pde->DiscoveryStatus = le32toh(pde->DiscoveryStatus);
2603                 mpt_lprt(mpt, MPT_PRT_WARN,
2604                     "SAS discovery error: Port: 0x%02x Status: 0x%08x\n",
2605                     pde->Port, pde->DiscoveryStatus);
2606                 break;
2607         }
2608         case MPI_EVENT_EVENT_CHANGE:
2609         case MPI_EVENT_INTEGRATED_RAID:
2610         case MPI_EVENT_IR2:
2611         case MPI_EVENT_LOG_ENTRY_ADDED:
2612         case MPI_EVENT_SAS_DISCOVERY:
2613         case MPI_EVENT_SAS_PHY_LINK_STATUS:
2614         case MPI_EVENT_SAS_SES:
2615                 break;
2616         default:
2617                 mpt_lprt(mpt, MPT_PRT_WARN, "mpt_cam_event: 0x%x\n",
2618                     msg->Event & 0xFF);
2619                 return (0);
2620         }
2621         return (1);
2622 }
2623
2624 /*
2625  * Reply path for all SCSI I/O requests, called from our
2626  * interrupt handler by extracting our handler index from
2627  * the MsgContext field of the reply from the IOC.
2628  *
2629  * This routine is optimized for the common case of a
2630  * completion without error.  All exception handling is
2631  * offloaded to non-inlined helper routines to minimize
2632  * cache footprint.
2633  */
2634 static int
2635 mpt_scsi_reply_handler(struct mpt_softc *mpt, request_t *req,
2636     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2637 {
2638         MSG_SCSI_IO_REQUEST *scsi_req;
2639         union ccb *ccb;
2640
2641         if (req->state == REQ_STATE_FREE) {
2642                 mpt_prt(mpt, "mpt_scsi_reply_handler: req already free\n");
2643                 return (TRUE);
2644         }
2645
2646         scsi_req = (MSG_SCSI_IO_REQUEST *)req->req_vbuf;
2647         ccb = req->ccb;
2648         if (ccb == NULL) {
2649                 mpt_prt(mpt, "mpt_scsi_reply_handler: req %p:%u with no ccb\n",
2650                     req, req->serno);
2651                 return (TRUE);
2652         }
2653
2654         mpt_req_untimeout(req, mpt_timeout, ccb);
2655         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2656
2657         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2658                 bus_dmasync_op_t op;
2659
2660                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
2661                         op = BUS_DMASYNC_POSTREAD;
2662                 else
2663                         op = BUS_DMASYNC_POSTWRITE;
2664                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
2665                 bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2666         }
2667
2668         if (reply_frame == NULL) {
2669                 /*
2670                  * Context only reply, completion without error status.
2671                  */
2672                 ccb->csio.resid = 0;
2673                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
2674                 ccb->csio.scsi_status = SCSI_STATUS_OK;
2675         } else {
2676                 mpt_scsi_reply_frame_handler(mpt, req, reply_frame);
2677         }
2678
2679         if (mpt->outofbeer) {
2680                 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2681                 mpt->outofbeer = 0;
2682                 mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
2683         }
2684         if (scsi_req->CDB[0] == INQUIRY && (scsi_req->CDB[1] & SI_EVPD) == 0) {
2685                 struct scsi_inquiry_data *iq =
2686                     (struct scsi_inquiry_data *)ccb->csio.data_ptr;
2687                 if (scsi_req->Function ==
2688                     MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
2689                         /*
2690                          * Fake out the device type so that only the
2691                          * pass-thru device will attach.
2692                          */
2693                         iq->device &= ~0x1F;
2694                         iq->device |= T_NODEVICE;
2695                 }
2696         }
2697         if (mpt->verbose == MPT_PRT_DEBUG) {
2698                 mpt_prt(mpt, "mpt_scsi_reply_handler: %p:%u complete\n",
2699                     req, req->serno);
2700         }
2701         KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d", __LINE__));
2702         xpt_done(ccb);
2703         if ((req->state & REQ_STATE_TIMEDOUT) == 0) {
2704                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2705         } else {
2706                 mpt_prt(mpt, "completing timedout/aborted req %p:%u\n",
2707                     req, req->serno);
2708                 TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
2709         }
2710         KASSERT((req->state & REQ_STATE_NEED_WAKEUP) == 0,
2711             ("CCB req needed wakeup"));
2712 #ifdef  INVARIANTS
2713         mpt_req_not_spcl(mpt, req, "mpt_scsi_reply_handler", __LINE__);
2714 #endif
2715         mpt_free_request(mpt, req);
2716         return (TRUE);
2717 }
2718
2719 static int
2720 mpt_scsi_tmf_reply_handler(struct mpt_softc *mpt, request_t *req,
2721     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2722 {
2723         MSG_SCSI_TASK_MGMT_REPLY *tmf_reply;
2724
2725         KASSERT(req == mpt->tmf_req, ("TMF Reply not using mpt->tmf_req"));
2726 #ifdef  INVARIANTS
2727         mpt_req_not_spcl(mpt, req, "mpt_scsi_tmf_reply_handler", __LINE__);
2728 #endif
2729         tmf_reply = (MSG_SCSI_TASK_MGMT_REPLY *)reply_frame;
2730         /* Record IOC Status and Response Code of TMF for any waiters. */
2731         req->IOCStatus = le16toh(tmf_reply->IOCStatus);
2732         req->ResponseCode = tmf_reply->ResponseCode;
2733
2734         mpt_lprt(mpt, MPT_PRT_DEBUG, "TMF complete: req %p:%u status 0x%x\n",
2735             req, req->serno, le16toh(tmf_reply->IOCStatus));
2736         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2737         if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
2738                 req->state |= REQ_STATE_DONE;
2739                 wakeup(req);
2740         } else {
2741                 mpt->tmf_req->state = REQ_STATE_FREE;
2742         }
2743         return (TRUE);
2744 }
2745
2746 /*
2747  * XXX: Move to definitions file
2748  */
2749 #define ELS     0x22
2750 #define FC4LS   0x32
2751 #define ABTS    0x81
2752 #define BA_ACC  0x84
2753
2754 #define LS_RJT  0x01
2755 #define LS_ACC  0x02
2756 #define PLOGI   0x03
2757 #define LOGO    0x05
2758 #define SRR     0x14
2759 #define PRLI    0x20
2760 #define PRLO    0x21
2761 #define ADISC   0x52
2762 #define RSCN    0x61
2763
2764 static void
2765 mpt_fc_els_send_response(struct mpt_softc *mpt, request_t *req,
2766     PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp, U8 length)
2767 {
2768         uint32_t fl;
2769         MSG_LINK_SERVICE_RSP_REQUEST tmp;
2770         PTR_MSG_LINK_SERVICE_RSP_REQUEST rsp;
2771
2772         /*
2773          * We are going to reuse the ELS request to send this response back.
2774          */
2775         rsp = &tmp;
2776         memset(rsp, 0, sizeof(*rsp));
2777
2778 #ifdef  USE_IMMEDIATE_LINK_DATA
2779         /*
2780          * Apparently the IMMEDIATE stuff doesn't seem to work.
2781          */
2782         rsp->RspFlags = LINK_SERVICE_RSP_FLAGS_IMMEDIATE;
2783 #endif
2784         rsp->RspLength = length;
2785         rsp->Function = MPI_FUNCTION_FC_LINK_SRVC_RSP;
2786         rsp->MsgContext = htole32(req->index | fc_els_handler_id);
2787
2788         /*
2789          * Copy over information from the original reply frame to
2790          * it's correct place in the response.
2791          */
2792         memcpy((U8 *)rsp + 0x0c, (U8 *)rp + 0x1c, 24);
2793
2794         /*
2795          * And now copy back the temporary area to the original frame.
2796          */
2797         memcpy(req->req_vbuf, rsp, sizeof (MSG_LINK_SERVICE_RSP_REQUEST));
2798         rsp = req->req_vbuf;
2799
2800 #ifdef  USE_IMMEDIATE_LINK_DATA
2801         memcpy((U8 *)&rsp->SGL, &((U8 *)req->req_vbuf)[MPT_RQSL(mpt)], length);
2802 #else
2803 {
2804         PTR_SGE_SIMPLE32 se = (PTR_SGE_SIMPLE32) &rsp->SGL;
2805         bus_addr_t paddr = req->req_pbuf;
2806         paddr += MPT_RQSL(mpt);
2807
2808         fl =
2809                 MPI_SGE_FLAGS_HOST_TO_IOC       |
2810                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
2811                 MPI_SGE_FLAGS_LAST_ELEMENT      |
2812                 MPI_SGE_FLAGS_END_OF_LIST       |
2813                 MPI_SGE_FLAGS_END_OF_BUFFER;
2814         fl <<= MPI_SGE_FLAGS_SHIFT;
2815         fl |= (length);
2816         se->FlagsLength = htole32(fl);
2817         se->Address = htole32((uint32_t) paddr);
2818 }
2819 #endif
2820
2821         /*
2822          * Send it on...
2823          */
2824         mpt_send_cmd(mpt, req);
2825 }
2826
2827 static int
2828 mpt_fc_els_reply_handler(struct mpt_softc *mpt, request_t *req,
2829     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2830 {
2831         PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp =
2832             (PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY) reply_frame;
2833         U8 rctl;
2834         U8 type;
2835         U8 cmd;
2836         U16 status = le16toh(reply_frame->IOCStatus);
2837         U32 *elsbuf;
2838         int ioindex;
2839         int do_refresh = TRUE;
2840
2841 #ifdef  INVARIANTS
2842         KASSERT(mpt_req_on_free_list(mpt, req) == 0,
2843             ("fc_els_reply_handler: req %p:%u for function %x on freelist!",
2844             req, req->serno, rp->Function));
2845         if (rp->Function != MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2846                 mpt_req_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2847         } else {
2848                 mpt_req_not_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2849         }
2850 #endif
2851         mpt_lprt(mpt, MPT_PRT_DEBUG,
2852             "FC_ELS Complete: req %p:%u, reply %p function %x\n",
2853             req, req->serno, reply_frame, reply_frame->Function);
2854
2855         if  (status != MPI_IOCSTATUS_SUCCESS) {
2856                 mpt_prt(mpt, "ELS REPLY STATUS 0x%x for Function %x\n",
2857                     status, reply_frame->Function);
2858                 if (status == MPI_IOCSTATUS_INVALID_STATE) {
2859                         /*
2860                          * XXX: to get around shutdown issue
2861                          */
2862                         mpt->disabled = 1;
2863                         return (TRUE);
2864                 }
2865                 return (TRUE);
2866         }
2867
2868         /*
2869          * If the function of a link service response, we recycle the
2870          * response to be a refresh for a new link service request.
2871          *
2872          * The request pointer is bogus in this case and we have to fetch
2873          * it based upon the TransactionContext.
2874          */
2875         if (rp->Function == MPI_FUNCTION_FC_LINK_SRVC_RSP) {
2876                 /* Freddie Uncle Charlie Katie */
2877                 /* We don't get the IOINDEX as part of the Link Svc Rsp */
2878                 for (ioindex = 0; ioindex < mpt->els_cmds_allocated; ioindex++)
2879                         if (mpt->els_cmd_ptrs[ioindex] == req) {
2880                                 break;
2881                         }
2882
2883                 KASSERT(ioindex < mpt->els_cmds_allocated,
2884                     ("can't find my mommie!"));
2885
2886                 /* remove from active list as we're going to re-post it */
2887                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2888                 req->state &= ~REQ_STATE_QUEUED;
2889                 req->state |= REQ_STATE_DONE;
2890                 mpt_fc_post_els(mpt, req, ioindex);
2891                 return (TRUE);
2892         }
2893
2894         if (rp->Function == MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2895                 /* remove from active list as we're done */
2896                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2897                 req->state &= ~REQ_STATE_QUEUED;
2898                 req->state |= REQ_STATE_DONE;
2899                 if (req->state & REQ_STATE_TIMEDOUT) {
2900                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2901                             "Sync Primitive Send Completed After Timeout\n");
2902                         mpt_free_request(mpt, req);
2903                 } else if ((req->state & REQ_STATE_NEED_WAKEUP) == 0) {
2904                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2905                             "Async Primitive Send Complete\n");
2906                         mpt_free_request(mpt, req);
2907                 } else {
2908                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2909                             "Sync Primitive Send Complete- Waking Waiter\n");
2910                         wakeup(req);
2911                 }
2912                 return (TRUE);
2913         }
2914
2915         if (rp->Function != MPI_FUNCTION_FC_LINK_SRVC_BUF_POST) {
2916                 mpt_prt(mpt, "unexpected ELS_REPLY: Function 0x%x Flags %x "
2917                     "Length %d Message Flags %x\n", rp->Function, rp->Flags,
2918                     rp->MsgLength, rp->MsgFlags);
2919                 return (TRUE);
2920         }
2921
2922         if (rp->MsgLength <= 5) {
2923                 /*
2924                  * This is just a ack of an original ELS buffer post
2925                  */
2926                 mpt_lprt(mpt, MPT_PRT_DEBUG,
2927                     "RECV'd ACK of FC_ELS buf post %p:%u\n", req, req->serno);
2928                 return (TRUE);
2929         }
2930
2931
2932         rctl = (le32toh(rp->Rctl_Did) & MPI_FC_RCTL_MASK) >> MPI_FC_RCTL_SHIFT;
2933         type = (le32toh(rp->Type_Fctl) & MPI_FC_TYPE_MASK) >> MPI_FC_TYPE_SHIFT;
2934
2935         elsbuf = &((U32 *)req->req_vbuf)[MPT_RQSL(mpt)/sizeof (U32)];
2936         cmd = be32toh(elsbuf[0]) >> 24;
2937
2938         if (rp->Flags & MPI_LS_BUF_POST_REPLY_FLAG_NO_RSP_NEEDED) {
2939                 mpt_lprt(mpt, MPT_PRT_ALWAYS, "ELS_REPLY: response unneeded\n");
2940                 return (TRUE);
2941         }
2942
2943         ioindex = le32toh(rp->TransactionContext);
2944         req = mpt->els_cmd_ptrs[ioindex];
2945
2946         if (rctl == ELS && type == 1) {
2947                 switch (cmd) {
2948                 case PRLI:
2949                         /*
2950                          * Send back a PRLI ACC
2951                          */
2952                         mpt_prt(mpt, "PRLI from 0x%08x%08x\n",
2953                             le32toh(rp->Wwn.PortNameHigh),
2954                             le32toh(rp->Wwn.PortNameLow));
2955                         elsbuf[0] = htobe32(0x02100014);
2956                         elsbuf[1] |= htobe32(0x00000100);
2957                         elsbuf[4] = htobe32(0x00000002);
2958                         if (mpt->role & MPT_ROLE_TARGET)
2959                                 elsbuf[4] |= htobe32(0x00000010);
2960                         if (mpt->role & MPT_ROLE_INITIATOR)
2961                                 elsbuf[4] |= htobe32(0x00000020);
2962                         /* remove from active list as we're done */
2963                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2964                         req->state &= ~REQ_STATE_QUEUED;
2965                         req->state |= REQ_STATE_DONE;
2966                         mpt_fc_els_send_response(mpt, req, rp, 20);
2967                         do_refresh = FALSE;
2968                         break;
2969                 case PRLO:
2970                         memset(elsbuf, 0, 5 * (sizeof (U32)));
2971                         elsbuf[0] = htobe32(0x02100014);
2972                         elsbuf[1] = htobe32(0x08000100);
2973                         mpt_prt(mpt, "PRLO from 0x%08x%08x\n",
2974                             le32toh(rp->Wwn.PortNameHigh),
2975                             le32toh(rp->Wwn.PortNameLow));
2976                         /* remove from active list as we're done */
2977                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2978                         req->state &= ~REQ_STATE_QUEUED;
2979                         req->state |= REQ_STATE_DONE;
2980                         mpt_fc_els_send_response(mpt, req, rp, 20);
2981                         do_refresh = FALSE;
2982                         break;
2983                 default:
2984                         mpt_prt(mpt, "ELS TYPE 1 COMMAND: %x\n", cmd);
2985                         break;
2986                 }
2987         } else if (rctl == ABTS && type == 0) {
2988                 uint16_t rx_id = le16toh(rp->Rxid);
2989                 uint16_t ox_id = le16toh(rp->Oxid);
2990                 request_t *tgt_req = NULL;
2991
2992                 mpt_prt(mpt,
2993                     "ELS: ABTS OX_ID 0x%x RX_ID 0x%x from 0x%08x%08x\n",
2994                     ox_id, rx_id, le32toh(rp->Wwn.PortNameHigh),
2995                     le32toh(rp->Wwn.PortNameLow));
2996                 if (rx_id >= mpt->mpt_max_tgtcmds) {
2997                         mpt_prt(mpt, "Bad RX_ID 0x%x\n", rx_id);
2998                 } else if (mpt->tgt_cmd_ptrs == NULL) {
2999                         mpt_prt(mpt, "No TGT CMD PTRS\n");
3000                 } else {
3001                         tgt_req = mpt->tgt_cmd_ptrs[rx_id];
3002                 }
3003                 if (tgt_req) {
3004                         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, tgt_req);
3005                         union ccb *ccb;
3006                         uint32_t ct_id;
3007
3008                         /*
3009                          * Check to make sure we have the correct command
3010                          * The reply descriptor in the target state should
3011                          * should contain an IoIndex that should match the
3012                          * RX_ID.
3013                          *
3014                          * It'd be nice to have OX_ID to crosscheck with
3015                          * as well.
3016                          */
3017                         ct_id = GET_IO_INDEX(tgt->reply_desc);
3018
3019                         if (ct_id != rx_id) {
3020                                 mpt_lprt(mpt, MPT_PRT_ERROR, "ABORT Mismatch: "
3021                                     "RX_ID received=0x%x; RX_ID in cmd=0x%x\n",
3022                                     rx_id, ct_id);
3023                                 goto skip;
3024                         }
3025
3026                         ccb = tgt->ccb;
3027                         if (ccb) {
3028                                 mpt_prt(mpt,
3029                                     "CCB (%p): lun %u flags %x status %x\n",
3030                                     ccb, ccb->ccb_h.target_lun,
3031                                     ccb->ccb_h.flags, ccb->ccb_h.status);
3032                         }
3033                         mpt_prt(mpt, "target state 0x%x resid %u xfrd %u rpwrd "
3034                             "%x nxfers %x\n", tgt->state,
3035                             tgt->resid, tgt->bytes_xfered, tgt->reply_desc,
3036                             tgt->nxfers);
3037   skip:
3038                         if (mpt_abort_target_cmd(mpt, tgt_req)) {
3039                                 mpt_prt(mpt, "unable to start TargetAbort\n");
3040                         }
3041                 } else {
3042                         mpt_prt(mpt, "no back pointer for RX_ID 0x%x\n", rx_id);
3043                 }
3044                 memset(elsbuf, 0, 5 * (sizeof (U32)));
3045                 elsbuf[0] = htobe32(0);
3046                 elsbuf[1] = htobe32((ox_id << 16) | rx_id);
3047                 elsbuf[2] = htobe32(0x000ffff);
3048                 /*
3049                  * Dork with the reply frame so that the response to it
3050                  * will be correct.
3051                  */
3052                 rp->Rctl_Did += ((BA_ACC - ABTS) << MPI_FC_RCTL_SHIFT);
3053                 /* remove from active list as we're done */
3054                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3055                 req->state &= ~REQ_STATE_QUEUED;
3056                 req->state |= REQ_STATE_DONE;
3057                 mpt_fc_els_send_response(mpt, req, rp, 12);
3058                 do_refresh = FALSE;
3059         } else {
3060                 mpt_prt(mpt, "ELS: RCTL %x TYPE %x CMD %x\n", rctl, type, cmd);
3061         }
3062         if (do_refresh == TRUE) {
3063                 /* remove from active list as we're done */
3064                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3065                 req->state &= ~REQ_STATE_QUEUED;
3066                 req->state |= REQ_STATE_DONE;
3067                 mpt_fc_post_els(mpt, req, ioindex);
3068         }
3069         return (TRUE);
3070 }
3071
3072 /*
3073  * Clean up all SCSI Initiator personality state in response
3074  * to a controller reset.
3075  */
3076 static void
3077 mpt_cam_ioc_reset(struct mpt_softc *mpt, int type)
3078 {
3079
3080         /*
3081          * The pending list is already run down by
3082          * the generic handler.  Perform the same
3083          * operation on the timed out request list.
3084          */
3085         mpt_complete_request_chain(mpt, &mpt->request_timeout_list,
3086                                    MPI_IOCSTATUS_INVALID_STATE);
3087
3088         /*
3089          * XXX: We need to repost ELS and Target Command Buffers?
3090          */
3091
3092         /*
3093          * Inform the XPT that a bus reset has occurred.
3094          */
3095         xpt_async(AC_BUS_RESET, mpt->path, NULL);
3096 }
3097
3098 /*
3099  * Parse additional completion information in the reply
3100  * frame for SCSI I/O requests.
3101  */
3102 static int
3103 mpt_scsi_reply_frame_handler(struct mpt_softc *mpt, request_t *req,
3104                              MSG_DEFAULT_REPLY *reply_frame)
3105 {
3106         union ccb *ccb;
3107         MSG_SCSI_IO_REPLY *scsi_io_reply;
3108         u_int ioc_status;
3109         u_int sstate;
3110
3111         MPT_DUMP_REPLY_FRAME(mpt, reply_frame);
3112         KASSERT(reply_frame->Function == MPI_FUNCTION_SCSI_IO_REQUEST
3113              || reply_frame->Function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH,
3114                 ("MPT SCSI I/O Handler called with incorrect reply type"));
3115         KASSERT((reply_frame->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY) == 0,
3116                 ("MPT SCSI I/O Handler called with continuation reply"));
3117
3118         scsi_io_reply = (MSG_SCSI_IO_REPLY *)reply_frame;
3119         ioc_status = le16toh(scsi_io_reply->IOCStatus);
3120         ioc_status &= MPI_IOCSTATUS_MASK;
3121         sstate = scsi_io_reply->SCSIState;
3122
3123         ccb = req->ccb;
3124         ccb->csio.resid =
3125             ccb->csio.dxfer_len - le32toh(scsi_io_reply->TransferCount);
3126
3127         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_VALID) != 0
3128          && (ccb->ccb_h.flags & (CAM_SENSE_PHYS | CAM_SENSE_PTR)) == 0) {
3129                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
3130                 ccb->csio.sense_resid =
3131                     ccb->csio.sense_len - le32toh(scsi_io_reply->SenseCount);
3132                 bzero(&ccb->csio.sense_data, sizeof(ccb->csio.sense_data));
3133                 bcopy(req->sense_vbuf, &ccb->csio.sense_data,
3134                     min(ccb->csio.sense_len,
3135                     le32toh(scsi_io_reply->SenseCount)));
3136         }
3137
3138         if ((sstate & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) != 0) {
3139                 /*
3140                  * Tag messages rejected, but non-tagged retry
3141                  * was successful.
3142 XXXX
3143                 mpt_set_tags(mpt, devinfo, MPT_QUEUE_NONE);
3144                  */
3145         }
3146
3147         switch(ioc_status) {
3148         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3149                 /*
3150                  * XXX
3151                  * Linux driver indicates that a zero
3152                  * transfer length with this error code
3153                  * indicates a CRC error.
3154                  *
3155                  * No need to swap the bytes for checking
3156                  * against zero.
3157                  */
3158                 if (scsi_io_reply->TransferCount == 0) {
3159                         mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3160                         break;
3161                 }
3162                 /* FALLTHROUGH */
3163         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
3164         case MPI_IOCSTATUS_SUCCESS:
3165         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:
3166                 if ((sstate & MPI_SCSI_STATE_NO_SCSI_STATUS) != 0) {
3167                         /*
3168                          * Status was never returned for this transaction.
3169                          */
3170                         mpt_set_ccb_status(ccb, CAM_UNEXP_BUSFREE);
3171                 } else if (scsi_io_reply->SCSIStatus != SCSI_STATUS_OK) {
3172                         ccb->csio.scsi_status = scsi_io_reply->SCSIStatus;
3173                         mpt_set_ccb_status(ccb, CAM_SCSI_STATUS_ERROR);
3174                         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_FAILED) != 0)
3175                                 mpt_set_ccb_status(ccb, CAM_AUTOSENSE_FAIL);
3176                 } else if ((sstate & MPI_SCSI_STATE_RESPONSE_INFO_VALID) != 0) {
3177
3178                         /* XXX Handle SPI-Packet and FCP-2 response info. */
3179                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3180                 } else
3181                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3182                 break;
3183         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
3184                 mpt_set_ccb_status(ccb, CAM_DATA_RUN_ERR);
3185                 break;
3186         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
3187                 mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3188                 break;
3189         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3190                 /*
3191                  * Since selection timeouts and "device really not
3192                  * there" are grouped into this error code, report
3193                  * selection timeout.  Selection timeouts are
3194                  * typically retried before giving up on the device
3195                  * whereas "device not there" errors are considered
3196                  * unretryable.
3197                  */
3198                 mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3199                 break;
3200         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3201                 mpt_set_ccb_status(ccb, CAM_SEQUENCE_FAIL);
3202                 break;
3203         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
3204                 mpt_set_ccb_status(ccb, CAM_PATH_INVALID);
3205                 break;
3206         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
3207                 mpt_set_ccb_status(ccb, CAM_TID_INVALID);
3208                 break;
3209         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3210                 ccb->ccb_h.status = CAM_UA_TERMIO;
3211                 break;
3212         case MPI_IOCSTATUS_INVALID_STATE:
3213                 /*
3214                  * The IOC has been reset.  Emulate a bus reset.
3215                  */
3216                 /* FALLTHROUGH */
3217         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
3218                 ccb->ccb_h.status = CAM_SCSI_BUS_RESET;
3219                 break;
3220         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
3221         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
3222                 /*
3223                  * Don't clobber any timeout status that has
3224                  * already been set for this transaction.  We
3225                  * want the SCSI layer to be able to differentiate
3226                  * between the command we aborted due to timeout
3227                  * and any innocent bystanders.
3228                  */
3229                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG)
3230                         break;
3231                 mpt_set_ccb_status(ccb, CAM_REQ_TERMIO);
3232                 break;
3233
3234         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
3235                 mpt_set_ccb_status(ccb, CAM_RESRC_UNAVAIL);
3236                 break;
3237         case MPI_IOCSTATUS_BUSY:
3238                 mpt_set_ccb_status(ccb, CAM_BUSY);
3239                 break;
3240         case MPI_IOCSTATUS_INVALID_FUNCTION:
3241         case MPI_IOCSTATUS_INVALID_SGL:
3242         case MPI_IOCSTATUS_INTERNAL_ERROR:
3243         case MPI_IOCSTATUS_INVALID_FIELD:
3244         default:
3245                 /* XXX
3246                  * Some of the above may need to kick
3247                  * of a recovery action!!!!
3248                  */
3249                 ccb->ccb_h.status = CAM_UNREC_HBA_ERROR;
3250                 break;
3251         }
3252
3253         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3254                 mpt_freeze_ccb(ccb);
3255         }
3256
3257         return (TRUE);
3258 }
3259
3260 static void
3261 mpt_action(struct cam_sim *sim, union ccb *ccb)
3262 {
3263         struct mpt_softc *mpt;
3264         struct ccb_trans_settings *cts;
3265         target_id_t tgt;
3266         lun_id_t lun;
3267         int raid_passthru;
3268
3269         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("mpt_action\n"));
3270
3271         mpt = (struct mpt_softc *)cam_sim_softc(sim);
3272         raid_passthru = (sim == mpt->phydisk_sim);
3273         MPT_LOCK_ASSERT(mpt);
3274
3275         tgt = ccb->ccb_h.target_id;
3276         lun = ccb->ccb_h.target_lun;
3277         if (raid_passthru &&
3278             ccb->ccb_h.func_code != XPT_PATH_INQ &&
3279             ccb->ccb_h.func_code != XPT_RESET_BUS &&
3280             ccb->ccb_h.func_code != XPT_RESET_DEV) {
3281                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
3282                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3283                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
3284                         xpt_done(ccb);
3285                         return;
3286                 }
3287         }
3288         ccb->ccb_h.ccb_mpt_ptr = mpt;
3289
3290         switch (ccb->ccb_h.func_code) {
3291         case XPT_SCSI_IO:       /* Execute the requested I/O operation */
3292                 /*
3293                  * Do a couple of preliminary checks...
3294                  */
3295                 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
3296                         if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
3297                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3298                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3299                                 break;
3300                         }
3301                 }
3302                 /* Max supported CDB length is 16 bytes */
3303                 /* XXX Unless we implement the new 32byte message type */
3304                 if (ccb->csio.cdb_len >
3305                     sizeof (((PTR_MSG_SCSI_IO_REQUEST)0)->CDB)) {
3306                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3307                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3308                         break;
3309                 }
3310 #ifdef  MPT_TEST_MULTIPATH
3311                 if (mpt->failure_id == ccb->ccb_h.target_id) {
3312                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3313                         mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3314                         break;
3315                 }
3316 #endif
3317                 ccb->csio.scsi_status = SCSI_STATUS_OK;
3318                 mpt_start(sim, ccb);
3319                 return;
3320
3321         case XPT_RESET_BUS:
3322                 if (raid_passthru) {
3323                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3324                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3325                         break;
3326                 }
3327         case XPT_RESET_DEV:
3328                 if (ccb->ccb_h.func_code == XPT_RESET_BUS) {
3329                         if (bootverbose) {
3330                                 xpt_print(ccb->ccb_h.path, "reset bus\n");
3331                         }
3332                 } else {
3333                         xpt_print(ccb->ccb_h.path, "reset device\n");
3334                 }
3335                 (void) mpt_bus_reset(mpt, tgt, lun, FALSE);
3336
3337                 /*
3338                  * mpt_bus_reset is always successful in that it
3339                  * will fall back to a hard reset should a bus
3340                  * reset attempt fail.
3341                  */
3342                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3343                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3344                 break;
3345
3346         case XPT_ABORT:
3347         {
3348                 union ccb *accb = ccb->cab.abort_ccb;
3349                 switch (accb->ccb_h.func_code) {
3350                 case XPT_ACCEPT_TARGET_IO:
3351                 case XPT_IMMED_NOTIFY:
3352                         ccb->ccb_h.status = mpt_abort_target_ccb(mpt, ccb);
3353                         break;
3354                 case XPT_CONT_TARGET_IO:
3355                         mpt_prt(mpt, "cannot abort active CTIOs yet\n");
3356                         ccb->ccb_h.status = CAM_UA_ABORT;
3357                         break;
3358                 case XPT_SCSI_IO:
3359                         ccb->ccb_h.status = CAM_UA_ABORT;
3360                         break;
3361                 default:
3362                         ccb->ccb_h.status = CAM_REQ_INVALID;
3363                         break;
3364                 }
3365                 break;
3366         }
3367
3368 #ifdef  CAM_NEW_TRAN_CODE
3369 #define IS_CURRENT_SETTINGS(c)  ((c)->type == CTS_TYPE_CURRENT_SETTINGS)
3370 #else
3371 #define IS_CURRENT_SETTINGS(c)  ((c)->flags & CCB_TRANS_CURRENT_SETTINGS)
3372 #endif
3373 #define DP_DISC_ENABLE  0x1
3374 #define DP_DISC_DISABL  0x2
3375 #define DP_DISC         (DP_DISC_ENABLE|DP_DISC_DISABL)
3376
3377 #define DP_TQING_ENABLE 0x4
3378 #define DP_TQING_DISABL 0x8
3379 #define DP_TQING        (DP_TQING_ENABLE|DP_TQING_DISABL)
3380
3381 #define DP_WIDE         0x10
3382 #define DP_NARROW       0x20
3383 #define DP_WIDTH        (DP_WIDE|DP_NARROW)
3384
3385 #define DP_SYNC         0x40
3386
3387         case XPT_SET_TRAN_SETTINGS:     /* Nexus Settings */
3388         {
3389 #ifdef  CAM_NEW_TRAN_CODE
3390                 struct ccb_trans_settings_scsi *scsi;
3391                 struct ccb_trans_settings_spi *spi;
3392 #endif
3393                 uint8_t dval;
3394                 u_int period;
3395                 u_int offset;
3396                 int i, j;
3397
3398                 cts = &ccb->cts;
3399
3400                 if (mpt->is_fc || mpt->is_sas) {
3401                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3402                         break;
3403                 }
3404
3405 #ifdef  CAM_NEW_TRAN_CODE
3406                 scsi = &cts->proto_specific.scsi;
3407                 spi = &cts->xport_specific.spi;
3408
3409                 /*
3410                  * We can be called just to valid transport and proto versions
3411                  */
3412                 if (scsi->valid == 0 && spi->valid == 0) {
3413                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3414                         break;
3415                 }
3416 #endif
3417
3418                 /*
3419                  * Skip attempting settings on RAID volume disks.
3420                  * Other devices on the bus get the normal treatment.
3421                  */
3422                 if (mpt->phydisk_sim && raid_passthru == 0 &&
3423                     mpt_is_raid_volume(mpt, tgt) != 0) {
3424                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3425                             "no transfer settings for RAID vols\n");
3426                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3427                         break;
3428                 }
3429
3430                 i = mpt->mpt_port_page2.PortSettings &
3431                     MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
3432                 j = mpt->mpt_port_page2.PortFlags &
3433                     MPI_SCSIPORTPAGE2_PORT_FLAGS_DV_MASK;
3434                 if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS &&
3435                     j == MPI_SCSIPORTPAGE2_PORT_FLAGS_OFF_DV) {
3436                         mpt_lprt(mpt, MPT_PRT_ALWAYS,
3437                             "honoring BIOS transfer negotiations\n");
3438                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3439                         break;
3440                 }
3441
3442                 dval = 0;
3443                 period = 0;
3444                 offset = 0;
3445
3446 #ifndef CAM_NEW_TRAN_CODE
3447                 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
3448                         dval |= (cts->flags & CCB_TRANS_DISC_ENB) ?
3449                             DP_DISC_ENABLE : DP_DISC_DISABL;
3450                 }
3451
3452                 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
3453                         dval |= (cts->flags & CCB_TRANS_TAG_ENB) ?
3454                             DP_TQING_ENABLE : DP_TQING_DISABL;
3455                 }
3456
3457                 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
3458                         dval |= cts->bus_width ? DP_WIDE : DP_NARROW;
3459                 }
3460
3461                 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) &&
3462                     (cts->valid & CCB_TRANS_SYNC_OFFSET_VALID)) {
3463                         dval |= DP_SYNC;
3464                         period = cts->sync_period;
3465                         offset = cts->sync_offset;
3466                 }
3467 #else
3468                 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
3469                         dval |= ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) ?
3470                             DP_DISC_ENABLE : DP_DISC_DISABL;
3471                 }
3472
3473                 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
3474                         dval |= ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) ?
3475                             DP_TQING_ENABLE : DP_TQING_DISABL;
3476                 }
3477
3478                 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
3479                         dval |= (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT) ?
3480                             DP_WIDE : DP_NARROW;
3481                 }
3482
3483                 if (spi->valid & CTS_SPI_VALID_SYNC_OFFSET) {
3484                         dval |= DP_SYNC;
3485                         offset = spi->sync_offset;
3486                 } else {
3487                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3488                             &mpt->mpt_dev_page1[tgt];
3489                         offset = ptr->RequestedParameters;
3490                         offset &= MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3491                         offset >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3492                 }
3493                 if (spi->valid & CTS_SPI_VALID_SYNC_RATE) {
3494                         dval |= DP_SYNC;
3495                         period = spi->sync_period;
3496                 } else {
3497                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3498                             &mpt->mpt_dev_page1[tgt];
3499                         period = ptr->RequestedParameters;
3500                         period &= MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3501                         period >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3502                 }
3503 #endif
3504                 if (dval & DP_DISC_ENABLE) {
3505                         mpt->mpt_disc_enable |= (1 << tgt);
3506                 } else if (dval & DP_DISC_DISABL) {
3507                         mpt->mpt_disc_enable &= ~(1 << tgt);
3508                 }
3509                 if (dval & DP_TQING_ENABLE) {
3510                         mpt->mpt_tag_enable |= (1 << tgt);
3511                 } else if (dval & DP_TQING_DISABL) {
3512                         mpt->mpt_tag_enable &= ~(1 << tgt);
3513                 }
3514                 if (dval & DP_WIDTH) {
3515                         mpt_setwidth(mpt, tgt, 1);
3516                 }
3517                 if (dval & DP_SYNC) {
3518                         mpt_setsync(mpt, tgt, period, offset);
3519                 }
3520                 if (dval == 0) {
3521                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3522                         break;
3523                 }
3524                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3525                     "set [%d]: 0x%x period 0x%x offset %d\n",
3526                     tgt, dval, period, offset);
3527                 if (mpt_update_spi_config(mpt, tgt)) {
3528                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3529                 } else {
3530                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3531                 }
3532                 break;
3533         }
3534         case XPT_GET_TRAN_SETTINGS:
3535         {
3536 #ifdef  CAM_NEW_TRAN_CODE
3537                 struct ccb_trans_settings_scsi *scsi;
3538                 cts = &ccb->cts;
3539                 cts->protocol = PROTO_SCSI;
3540                 if (mpt->is_fc) {
3541                         struct ccb_trans_settings_fc *fc =
3542                             &cts->xport_specific.fc;
3543                         cts->protocol_version = SCSI_REV_SPC;
3544                         cts->transport = XPORT_FC;
3545                         cts->transport_version = 0;
3546                         fc->valid = CTS_FC_VALID_SPEED;
3547                         fc->bitrate = 100000;
3548                 } else if (mpt->is_sas) {
3549                         struct ccb_trans_settings_sas *sas =
3550                             &cts->xport_specific.sas;
3551                         cts->protocol_version = SCSI_REV_SPC2;
3552                         cts->transport = XPORT_SAS;
3553                         cts->transport_version = 0;
3554                         sas->valid = CTS_SAS_VALID_SPEED;
3555                         sas->bitrate = 300000;
3556                 } else {
3557                         cts->protocol_version = SCSI_REV_2;
3558                         cts->transport = XPORT_SPI;
3559                         cts->transport_version = 2;
3560                         if (mpt_get_spi_settings(mpt, cts) != 0) {
3561                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3562                                 break;
3563                         }
3564                 }
3565                 scsi = &cts->proto_specific.scsi;
3566                 scsi->valid = CTS_SCSI_VALID_TQ;
3567                 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3568 #else
3569                 cts = &ccb->cts;
3570                 if (mpt->is_fc) {
3571                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3572                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3573                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3574                 } else if (mpt->is_sas) {
3575                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3576                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3577                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3578                 } else if (mpt_get_spi_settings(mpt, cts) != 0) {
3579                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3580                         break;
3581                 }
3582 #endif
3583                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3584                 break;
3585         }
3586         case XPT_CALC_GEOMETRY:
3587         {
3588                 struct ccb_calc_geometry *ccg;
3589
3590                 ccg = &ccb->ccg;
3591                 if (ccg->block_size == 0) {
3592                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3593                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3594                         break;
3595                 }
3596                 cam_calc_geometry(ccg, /* extended */ 1);
3597                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d", __LINE__));
3598                 break;
3599         }
3600         case XPT_PATH_INQ:              /* Path routing inquiry */
3601         {
3602                 struct ccb_pathinq *cpi = &ccb->cpi;
3603
3604                 cpi->version_num = 1;
3605                 cpi->target_sprt = 0;
3606                 cpi->hba_eng_cnt = 0;
3607                 cpi->max_target = mpt->port_facts[0].MaxDevices - 1;
3608                 cpi->maxio = (mpt->max_cam_seg_cnt - 1) * PAGE_SIZE;
3609                 /*
3610                  * FC cards report MAX_DEVICES of 512, but
3611                  * the MSG_SCSI_IO_REQUEST target id field
3612                  * is only 8 bits. Until we fix the driver
3613                  * to support 'channels' for bus overflow,
3614                  * just limit it.
3615                  */
3616                 if (cpi->max_target > 255) {
3617                         cpi->max_target = 255;
3618                 }
3619
3620                 /*
3621                  * VMware ESX reports > 16 devices and then dies when we probe.
3622                  */
3623                 if (mpt->is_spi && cpi->max_target > 15) {
3624                         cpi->max_target = 15;
3625                 }
3626                 if (mpt->is_spi)
3627                         cpi->max_lun = 7;
3628                 else
3629                         cpi->max_lun = MPT_MAX_LUNS;
3630                 cpi->initiator_id = mpt->mpt_ini_id;
3631                 cpi->bus_id = cam_sim_bus(sim);
3632
3633                 /*
3634                  * The base speed is the speed of the underlying connection.
3635                  */
3636 #ifdef  CAM_NEW_TRAN_CODE
3637                 cpi->protocol = PROTO_SCSI;
3638                 if (mpt->is_fc) {
3639                         cpi->hba_misc = PIM_NOBUSRESET;
3640                         cpi->base_transfer_speed = 100000;
3641                         cpi->hba_inquiry = PI_TAG_ABLE;
3642                         cpi->transport = XPORT_FC;
3643                         cpi->transport_version = 0;
3644                         cpi->protocol_version = SCSI_REV_SPC;
3645                 } else if (mpt->is_sas) {
3646                         cpi->hba_misc = PIM_NOBUSRESET;
3647                         cpi->base_transfer_speed = 300000;
3648                         cpi->hba_inquiry = PI_TAG_ABLE;
3649                         cpi->transport = XPORT_SAS;
3650                         cpi->transport_version = 0;
3651                         cpi->protocol_version = SCSI_REV_SPC2;
3652                 } else {
3653                         cpi->hba_misc = PIM_SEQSCAN;
3654                         cpi->base_transfer_speed = 3300;
3655                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3656                         cpi->transport = XPORT_SPI;
3657                         cpi->transport_version = 2;
3658                         cpi->protocol_version = SCSI_REV_2;
3659                 }
3660 #else
3661                 if (mpt->is_fc) {
3662                         cpi->hba_misc = PIM_NOBUSRESET;
3663                         cpi->base_transfer_speed = 100000;
3664                         cpi->hba_inquiry = PI_TAG_ABLE;
3665                 } else if (mpt->is_sas) {
3666                         cpi->hba_misc = PIM_NOBUSRESET;
3667                         cpi->base_transfer_speed = 300000;
3668                         cpi->hba_inquiry = PI_TAG_ABLE;
3669                 } else {
3670                         cpi->hba_misc = PIM_SEQSCAN;
3671                         cpi->base_transfer_speed = 3300;
3672                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3673                 }
3674 #endif
3675
3676                 /*
3677                  * We give our fake RAID passhtru bus a width that is MaxVolumes
3678                  * wide and restrict it to one lun.
3679                  */
3680                 if (raid_passthru) {
3681                         cpi->max_target = mpt->ioc_page2->MaxPhysDisks - 1;
3682                         cpi->initiator_id = cpi->max_target + 1;
3683                         cpi->max_lun = 0;
3684                 }
3685
3686                 if ((mpt->role & MPT_ROLE_INITIATOR) == 0) {
3687                         cpi->hba_misc |= PIM_NOINITIATOR;
3688                 }
3689                 if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
3690                         cpi->target_sprt =
3691                             PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
3692                 } else {
3693                         cpi->target_sprt = 0;
3694                 }
3695                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3696                 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
3697                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3698                 cpi->unit_number = cam_sim_unit(sim);
3699                 cpi->ccb_h.status = CAM_REQ_CMP;
3700                 break;
3701         }
3702         case XPT_EN_LUN:                /* Enable LUN as a target */
3703         {
3704                 int result;
3705
3706                 if (ccb->cel.enable)
3707                         result = mpt_enable_lun(mpt,
3708                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3709                 else
3710                         result = mpt_disable_lun(mpt,
3711                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3712                 if (result == 0) {
3713                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3714                 } else {
3715                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3716                 }
3717                 break;
3718         }
3719         case XPT_NOTIFY_ACK:            /* recycle notify ack */
3720         case XPT_IMMED_NOTIFY:          /* Add Immediate Notify Resource */
3721         case XPT_ACCEPT_TARGET_IO:      /* Add Accept Target IO Resource */
3722         {
3723                 tgt_resource_t *trtp;
3724                 lun_id_t lun = ccb->ccb_h.target_lun;
3725                 ccb->ccb_h.sim_priv.entries[0].field = 0;
3726                 ccb->ccb_h.sim_priv.entries[1].ptr = mpt;
3727                 ccb->ccb_h.flags = 0;
3728
3729                 if (lun == CAM_LUN_WILDCARD) {
3730                         if (ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
3731                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3732                                 break;
3733                         }
3734                         trtp = &mpt->trt_wildcard;
3735                 } else if (lun >= MPT_MAX_LUNS) {
3736                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3737                         break;
3738                 } else {
3739                         trtp = &mpt->trt[lun];
3740                 }
3741                 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
3742                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3743                             "Put FREE ATIO %p lun %d\n", ccb, lun);
3744                         STAILQ_INSERT_TAIL(&trtp->atios, &ccb->ccb_h,
3745                             sim_links.stqe);
3746                 } else if (ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
3747                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3748                             "Put FREE INOT lun %d\n", lun);
3749                         STAILQ_INSERT_TAIL(&trtp->inots, &ccb->ccb_h,
3750                             sim_links.stqe);
3751                 } else {
3752                         mpt_lprt(mpt, MPT_PRT_ALWAYS, "Got Notify ACK\n");
3753                 }
3754                 mpt_set_ccb_status(ccb, CAM_REQ_INPROG);
3755                 return;
3756         }
3757         case XPT_CONT_TARGET_IO:
3758                 mpt_target_start_io(mpt, ccb);
3759                 return;
3760
3761         default:
3762                 ccb->ccb_h.status = CAM_REQ_INVALID;
3763                 break;
3764         }
3765         xpt_done(ccb);
3766 }
3767
3768 static int
3769 mpt_get_spi_settings(struct mpt_softc *mpt, struct ccb_trans_settings *cts)
3770 {
3771 #ifdef  CAM_NEW_TRAN_CODE
3772         struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3773         struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3774 #endif
3775         target_id_t tgt;
3776         uint32_t dval, pval, oval;
3777         int rv;
3778
3779         if (IS_CURRENT_SETTINGS(cts) == 0) {
3780                 tgt = cts->ccb_h.target_id;
3781         } else if (xpt_path_sim(cts->ccb_h.path) == mpt->phydisk_sim) {
3782                 if (mpt_map_physdisk(mpt, (union ccb *)cts, &tgt)) {
3783                         return (-1);
3784                 }
3785         } else {
3786                 tgt = cts->ccb_h.target_id;
3787         }
3788
3789         /*
3790          * We aren't looking at Port Page 2 BIOS settings here-
3791          * sometimes these have been known to be bogus XXX.
3792          *
3793          * For user settings, we pick the max from port page 0
3794          *
3795          * For current settings we read the current settings out from
3796          * device page 0 for that target.
3797          */
3798         if (IS_CURRENT_SETTINGS(cts)) {
3799                 CONFIG_PAGE_SCSI_DEVICE_0 tmp;
3800                 dval = 0;
3801
3802                 tmp = mpt->mpt_dev_page0[tgt];
3803                 rv = mpt_read_cur_cfg_page(mpt, tgt, &tmp.Header,
3804                     sizeof(tmp), FALSE, 5000);
3805                 if (rv) {
3806                         mpt_prt(mpt, "can't get tgt %d config page 0\n", tgt);
3807                         return (rv);
3808                 }
3809                 mpt2host_config_page_scsi_device_0(&tmp);
3810
3811                 mpt_lprt(mpt, MPT_PRT_DEBUG,
3812                     "mpt_get_spi_settings[%d]: current NP %x Info %x\n", tgt,
3813                     tmp.NegotiatedParameters, tmp.Information);
3814                 dval |= (tmp.NegotiatedParameters & MPI_SCSIDEVPAGE0_NP_WIDE) ?
3815                     DP_WIDE : DP_NARROW;
3816                 dval |= (mpt->mpt_disc_enable & (1 << tgt)) ?
3817                     DP_DISC_ENABLE : DP_DISC_DISABL;
3818                 dval |= (mpt->mpt_tag_enable & (1 << tgt)) ?
3819                     DP_TQING_ENABLE : DP_TQING_DISABL;
3820                 oval = tmp.NegotiatedParameters;
3821                 oval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK;
3822                 oval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
3823                 pval = tmp.NegotiatedParameters;
3824                 pval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK;
3825                 pval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
3826                 mpt->mpt_dev_page0[tgt] = tmp;
3827         } else {
3828                 dval = DP_WIDE|DP_DISC_ENABLE|DP_TQING_ENABLE|DP_SYNC;
3829                 oval = mpt->mpt_port_page0.Capabilities;
3830                 oval = MPI_SCSIPORTPAGE0_CAP_GET_MAX_SYNC_OFFSET(oval);
3831                 pval = mpt->mpt_port_page0.Capabilities;
3832                 pval = MPI_SCSIPORTPAGE0_CAP_GET_MIN_SYNC_PERIOD(pval);
3833         }
3834
3835 #ifndef CAM_NEW_TRAN_CODE
3836         cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
3837         cts->valid = 0;
3838         cts->sync_period = pval;
3839         cts->sync_offset = oval;
3840         cts->valid |= CCB_TRANS_SYNC_RATE_VALID;
3841         cts->valid |= CCB_TRANS_SYNC_OFFSET_VALID;
3842         cts->valid |= CCB_TRANS_BUS_WIDTH_VALID;
3843         if (dval & DP_WIDE) {
3844                 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3845         } else {
3846                 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3847         }
3848         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3849                 cts->valid |= CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3850                 if (dval & DP_DISC_ENABLE) {
3851                         cts->flags |= CCB_TRANS_DISC_ENB;
3852                 }
3853                 if (dval & DP_TQING_ENABLE) {
3854                         cts->flags |= CCB_TRANS_TAG_ENB;
3855                 }
3856         }
3857 #else
3858         spi->valid = 0;
3859         scsi->valid = 0;
3860         spi->flags = 0;
3861         scsi->flags = 0;
3862         spi->sync_offset = oval;
3863         spi->sync_period = pval;
3864         spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3865         spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3866         spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
3867         if (dval & DP_WIDE) {
3868                 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3869         } else {
3870                 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3871         }
3872         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3873                 scsi->valid = CTS_SCSI_VALID_TQ;
3874                 if (dval & DP_TQING_ENABLE) {
3875                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3876                 }
3877                 spi->valid |= CTS_SPI_VALID_DISC;
3878                 if (dval & DP_DISC_ENABLE) {
3879                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3880                 }
3881         }
3882 #endif
3883         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3884             "mpt_get_spi_settings[%d]: %s flags 0x%x per 0x%x off=%d\n", tgt,
3885             IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM ", dval, pval, oval);
3886         return (0);
3887 }
3888
3889 static void
3890 mpt_setwidth(struct mpt_softc *mpt, int tgt, int onoff)
3891 {
3892         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3893
3894         ptr = &mpt->mpt_dev_page1[tgt];
3895         if (onoff) {
3896                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_WIDE;
3897         } else {
3898                 ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_WIDE;
3899         }
3900 }
3901
3902 static void
3903 mpt_setsync(struct mpt_softc *mpt, int tgt, int period, int offset)
3904 {
3905         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3906
3907         ptr = &mpt->mpt_dev_page1[tgt];
3908         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3909         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3910         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_DT;
3911         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_QAS;
3912         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_IU;
3913         if (period == 0) {
3914                 return;
3915         }
3916         ptr->RequestedParameters |=
3917             period << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3918         ptr->RequestedParameters |=
3919             offset << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3920         if (period < 0xa) {
3921                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_DT;
3922         }
3923         if (period < 0x9) {
3924                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_QAS;
3925                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_IU;
3926         }
3927 }
3928
3929 static int
3930 mpt_update_spi_config(struct mpt_softc *mpt, int tgt)
3931 {
3932         CONFIG_PAGE_SCSI_DEVICE_1 tmp;
3933         int rv;
3934
3935         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3936             "mpt_update_spi_config[%d].page1: Requested Params 0x%08x\n",
3937             tgt, mpt->mpt_dev_page1[tgt].RequestedParameters);
3938         tmp = mpt->mpt_dev_page1[tgt];
3939         host2mpt_config_page_scsi_device_1(&tmp);
3940         rv = mpt_write_cur_cfg_page(mpt, tgt,
3941             &tmp.Header, sizeof(tmp), FALSE, 5000);
3942         if (rv) {
3943                 mpt_prt(mpt, "mpt_update_spi_config: write cur page failed\n");
3944                 return (-1);
3945         }
3946         return (0);
3947 }
3948
3949 /****************************** Timeout Recovery ******************************/
3950 static int
3951 mpt_spawn_recovery_thread(struct mpt_softc *mpt)
3952 {
3953         int error;
3954
3955         error = mpt_kthread_create(mpt_recovery_thread, mpt,
3956             &mpt->recovery_thread, /*flags*/0,
3957             /*altstack*/0, "mpt_recovery%d", mpt->unit);
3958         return (error);
3959 }
3960
3961 static void
3962 mpt_terminate_recovery_thread(struct mpt_softc *mpt)
3963 {
3964
3965         if (mpt->recovery_thread == NULL) {
3966                 return;
3967         }
3968         mpt->shutdwn_recovery = 1;
3969         wakeup(mpt);
3970         /*
3971          * Sleep on a slightly different location
3972          * for this interlock just for added safety.
3973          */
3974         mpt_sleep(mpt, &mpt->recovery_thread, PUSER, "thtrm", 0);
3975 }
3976
3977 static void
3978 mpt_recovery_thread(void *arg)
3979 {
3980         struct mpt_softc *mpt;
3981
3982         mpt = (struct mpt_softc *)arg;
3983         MPT_LOCK(mpt);
3984         for (;;) {
3985                 if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
3986                         if (mpt->shutdwn_recovery == 0) {
3987                                 mpt_sleep(mpt, mpt, PUSER, "idle", 0);
3988                         }
3989                 }
3990                 if (mpt->shutdwn_recovery != 0) {
3991                         break;
3992                 }
3993                 mpt_recover_commands(mpt);
3994         }
3995         mpt->recovery_thread = NULL;
3996         wakeup(&mpt->recovery_thread);
3997         MPT_UNLOCK(mpt);
3998         mpt_kthread_exit(0);
3999 }
4000
4001 static int
4002 mpt_scsi_send_tmf(struct mpt_softc *mpt, u_int type, u_int flags,
4003     u_int channel, u_int target, u_int lun, u_int abort_ctx, int sleep_ok)
4004 {
4005         MSG_SCSI_TASK_MGMT *tmf_req;
4006         int                 error;
4007
4008         /*
4009          * Wait for any current TMF request to complete.
4010          * We're only allowed to issue one TMF at a time.
4011          */
4012         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_FREE, REQ_STATE_FREE,
4013             sleep_ok, MPT_TMF_MAX_TIMEOUT);
4014         if (error != 0) {
4015                 mpt_reset(mpt, TRUE);
4016                 return (ETIMEDOUT);
4017         }
4018
4019         mpt_assign_serno(mpt, mpt->tmf_req);
4020         mpt->tmf_req->state = REQ_STATE_ALLOCATED|REQ_STATE_QUEUED;
4021
4022         tmf_req = (MSG_SCSI_TASK_MGMT *)mpt->tmf_req->req_vbuf;
4023         memset(tmf_req, 0, sizeof(*tmf_req));
4024         tmf_req->TargetID = target;
4025         tmf_req->Bus = channel;
4026         tmf_req->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
4027         tmf_req->TaskType = type;
4028         tmf_req->MsgFlags = flags;
4029         tmf_req->MsgContext =
4030             htole32(mpt->tmf_req->index | scsi_tmf_handler_id);
4031         if (lun > MPT_MAX_LUNS) {
4032                 tmf_req->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4033                 tmf_req->LUN[1] = lun & 0xff;
4034         } else {
4035                 tmf_req->LUN[1] = lun;
4036         }
4037         tmf_req->TaskMsgContext = abort_ctx;
4038
4039         mpt_lprt(mpt, MPT_PRT_DEBUG,
4040             "Issuing TMF %p:%u with MsgContext of 0x%x\n", mpt->tmf_req,
4041             mpt->tmf_req->serno, tmf_req->MsgContext);
4042         if (mpt->verbose > MPT_PRT_DEBUG) {
4043                 mpt_print_request(tmf_req);
4044         }
4045
4046         KASSERT(mpt_req_on_pending_list(mpt, mpt->tmf_req) == 0,
4047             ("mpt_scsi_send_tmf: tmf_req already on pending list"));
4048         TAILQ_INSERT_HEAD(&mpt->request_pending_list, mpt->tmf_req, links);
4049         error = mpt_send_handshake_cmd(mpt, sizeof(*tmf_req), tmf_req);
4050         if (error != MPT_OK) {
4051                 TAILQ_REMOVE(&mpt->request_pending_list, mpt->tmf_req, links);
4052                 mpt->tmf_req->state = REQ_STATE_FREE;
4053                 mpt_reset(mpt, TRUE);
4054         }
4055         return (error);
4056 }
4057
4058 /*
4059  * When a command times out, it is placed on the requeust_timeout_list
4060  * and we wake our recovery thread.  The MPT-Fusion architecture supports
4061  * only a single TMF operation at a time, so we serially abort/bdr, etc,
4062  * the timedout transactions.  The next TMF is issued either by the
4063  * completion handler of the current TMF waking our recovery thread,
4064  * or the TMF timeout handler causing a hard reset sequence.
4065  */
4066 static void
4067 mpt_recover_commands(struct mpt_softc *mpt)
4068 {
4069         request_t          *req;
4070         union ccb          *ccb;
4071         int                 error;
4072
4073         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4074                 /*
4075                  * No work to do- leave.
4076                  */
4077                 mpt_prt(mpt, "mpt_recover_commands: no requests.\n");
4078                 return;
4079         }
4080
4081         /*
4082          * Flush any commands whose completion coincides with their timeout.
4083          */
4084         mpt_intr(mpt);
4085
4086         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4087                 /*
4088                  * The timedout commands have already
4089                  * completed.  This typically means
4090                  * that either the timeout value was on
4091                  * the hairy edge of what the device
4092                  * requires or - more likely - interrupts
4093                  * are not happening.
4094                  */
4095                 mpt_prt(mpt, "Timedout requests already complete. "
4096                     "Interrupts may not be functioning.\n");
4097                 mpt_enable_ints(mpt);
4098                 return;
4099         }
4100
4101         /*
4102          * We have no visibility into the current state of the
4103          * controller, so attempt to abort the commands in the
4104          * order they timed-out. For initiator commands, we
4105          * depend on the reply handler pulling requests off
4106          * the timeout list.
4107          */
4108         while ((req = TAILQ_FIRST(&mpt->request_timeout_list)) != NULL) {
4109                 uint16_t status;
4110                 uint8_t response;
4111                 MSG_REQUEST_HEADER *hdrp = req->req_vbuf;
4112
4113                 mpt_prt(mpt, "attempting to abort req %p:%u function %x\n",
4114                     req, req->serno, hdrp->Function);
4115                 ccb = req->ccb;
4116                 if (ccb == NULL) {
4117                         mpt_prt(mpt, "null ccb in timed out request. "
4118                             "Resetting Controller.\n");
4119                         mpt_reset(mpt, TRUE);
4120                         continue;
4121                 }
4122                 mpt_set_ccb_status(ccb, CAM_CMD_TIMEOUT);
4123
4124                 /*
4125                  * Check to see if this is not an initiator command and
4126                  * deal with it differently if it is.
4127                  */
4128                 switch (hdrp->Function) {
4129                 case MPI_FUNCTION_SCSI_IO_REQUEST:
4130                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
4131                         break;
4132                 default:
4133                         /*
4134                          * XXX: FIX ME: need to abort target assists...
4135                          */
4136                         mpt_prt(mpt, "just putting it back on the pend q\n");
4137                         TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
4138                         TAILQ_INSERT_HEAD(&mpt->request_pending_list, req,
4139                             links);
4140                         continue;
4141                 }
4142
4143                 error = mpt_scsi_send_tmf(mpt,
4144                     MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
4145                     0, 0, ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
4146                     htole32(req->index | scsi_io_handler_id), TRUE);
4147
4148                 if (error != 0) {
4149                         /*
4150                          * mpt_scsi_send_tmf hard resets on failure, so no
4151                          * need to do so here.  Our queue should be emptied
4152                          * by the hard reset.
4153                          */
4154                         continue;
4155                 }
4156
4157                 error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
4158                     REQ_STATE_DONE, TRUE, 500);
4159
4160                 status = le16toh(mpt->tmf_req->IOCStatus);
4161                 response = mpt->tmf_req->ResponseCode;
4162                 mpt->tmf_req->state = REQ_STATE_FREE;
4163
4164                 if (error != 0) {
4165                         /*
4166                          * If we've errored out,, reset the controller.
4167                          */
4168                         mpt_prt(mpt, "mpt_recover_commands: abort timed-out. "
4169                             "Resetting controller\n");
4170                         mpt_reset(mpt, TRUE);
4171                         continue;
4172                 }
4173
4174                 if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
4175                         mpt_prt(mpt, "mpt_recover_commands: IOC Status 0x%x. "
4176                             "Resetting controller.\n", status);
4177                         mpt_reset(mpt, TRUE);
4178                         continue;
4179                 }
4180
4181                 if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
4182                     response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
4183                         mpt_prt(mpt, "mpt_recover_commands: TMF Response 0x%x. "
4184                             "Resetting controller.\n", response);
4185                         mpt_reset(mpt, TRUE);
4186                         continue;
4187                 }
4188                 mpt_prt(mpt, "abort of req %p:%u completed\n", req, req->serno);
4189         }
4190 }
4191
4192 /************************ Target Mode Support ****************************/
4193 static void
4194 mpt_fc_post_els(struct mpt_softc *mpt, request_t *req, int ioindex)
4195 {
4196         MSG_LINK_SERVICE_BUFFER_POST_REQUEST *fc;
4197         PTR_SGE_TRANSACTION32 tep;
4198         PTR_SGE_SIMPLE32 se;
4199         bus_addr_t paddr;
4200         uint32_t fl;
4201
4202         paddr = req->req_pbuf;
4203         paddr += MPT_RQSL(mpt);
4204
4205         fc = req->req_vbuf;
4206         memset(fc, 0, MPT_REQUEST_AREA);
4207         fc->BufferCount = 1;
4208         fc->Function = MPI_FUNCTION_FC_LINK_SRVC_BUF_POST;
4209         fc->MsgContext = htole32(req->index | fc_els_handler_id);
4210
4211         /*
4212          * Okay, set up ELS buffer pointers. ELS buffer pointers
4213          * consist of a TE SGL element (with details length of zero)
4214          * followed by a SIMPLE SGL element which holds the address
4215          * of the buffer.
4216          */
4217
4218         tep = (PTR_SGE_TRANSACTION32) &fc->SGL;
4219
4220         tep->ContextSize = 4;
4221         tep->Flags = 0;
4222         tep->TransactionContext[0] = htole32(ioindex);
4223
4224         se = (PTR_SGE_SIMPLE32) &tep->TransactionDetails[0];
4225         fl =
4226                 MPI_SGE_FLAGS_HOST_TO_IOC       |
4227                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4228                 MPI_SGE_FLAGS_LAST_ELEMENT      |
4229                 MPI_SGE_FLAGS_END_OF_LIST       |
4230                 MPI_SGE_FLAGS_END_OF_BUFFER;
4231         fl <<= MPI_SGE_FLAGS_SHIFT;
4232         fl |= (MPT_NRFM(mpt) - MPT_RQSL(mpt));
4233         se->FlagsLength = htole32(fl);
4234         se->Address = htole32((uint32_t) paddr);
4235         mpt_lprt(mpt, MPT_PRT_DEBUG,
4236             "add ELS index %d ioindex %d for %p:%u\n",
4237             req->index, ioindex, req, req->serno);
4238         KASSERT(((req->state & REQ_STATE_LOCKED) != 0),
4239             ("mpt_fc_post_els: request not locked"));
4240         mpt_send_cmd(mpt, req);
4241 }
4242
4243 static void
4244 mpt_post_target_command(struct mpt_softc *mpt, request_t *req, int ioindex)
4245 {
4246         PTR_MSG_TARGET_CMD_BUFFER_POST_REQUEST fc;
4247         PTR_CMD_BUFFER_DESCRIPTOR cb;
4248         bus_addr_t paddr;
4249
4250         paddr = req->req_pbuf;
4251         paddr += MPT_RQSL(mpt);
4252         memset(req->req_vbuf, 0, MPT_REQUEST_AREA);
4253         MPT_TGT_STATE(mpt, req)->state = TGT_STATE_LOADING;
4254
4255         fc = req->req_vbuf;
4256         fc->BufferCount = 1;
4257         fc->Function = MPI_FUNCTION_TARGET_CMD_BUFFER_POST;
4258         fc->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4259
4260         cb = &fc->Buffer[0];
4261         cb->IoIndex = htole16(ioindex);
4262         cb->u.PhysicalAddress32 = htole32((U32) paddr);
4263
4264         mpt_check_doorbell(mpt);
4265         mpt_send_cmd(mpt, req);
4266 }
4267
4268 static int
4269 mpt_add_els_buffers(struct mpt_softc *mpt)
4270 {
4271         int i;
4272
4273         if (mpt->is_fc == 0) {
4274                 return (TRUE);
4275         }
4276
4277         if (mpt->els_cmds_allocated) {
4278                 return (TRUE);
4279         }
4280
4281         mpt->els_cmd_ptrs = malloc(MPT_MAX_ELS * sizeof (request_t *),
4282             M_DEVBUF, M_NOWAIT | M_ZERO);
4283
4284         if (mpt->els_cmd_ptrs == NULL) {
4285                 return (FALSE);
4286         }
4287
4288         /*
4289          * Feed the chip some ELS buffer resources
4290          */
4291         for (i = 0; i < MPT_MAX_ELS; i++) {
4292                 request_t *req = mpt_get_request(mpt, FALSE);
4293                 if (req == NULL) {
4294                         break;
4295                 }
4296                 req->state |= REQ_STATE_LOCKED;
4297                 mpt->els_cmd_ptrs[i] = req;
4298                 mpt_fc_post_els(mpt, req, i);
4299         }
4300
4301         if (i == 0) {
4302                 mpt_prt(mpt, "unable to add ELS buffer resources\n");
4303                 free(mpt->els_cmd_ptrs, M_DEVBUF);
4304                 mpt->els_cmd_ptrs = NULL;
4305                 return (FALSE);
4306         }
4307         if (i != MPT_MAX_ELS) {
4308                 mpt_lprt(mpt, MPT_PRT_INFO,
4309                     "only added %d of %d  ELS buffers\n", i, MPT_MAX_ELS);
4310         }
4311         mpt->els_cmds_allocated = i;
4312         return(TRUE);
4313 }
4314
4315 static int
4316 mpt_add_target_commands(struct mpt_softc *mpt)
4317 {
4318         int i, max;
4319
4320         if (mpt->tgt_cmd_ptrs) {
4321                 return (TRUE);
4322         }
4323
4324         max = MPT_MAX_REQUESTS(mpt) >> 1;
4325         if (max > mpt->mpt_max_tgtcmds) {
4326                 max = mpt->mpt_max_tgtcmds;
4327         }
4328         mpt->tgt_cmd_ptrs =
4329             malloc(max * sizeof (request_t *), M_DEVBUF, M_NOWAIT | M_ZERO);
4330         if (mpt->tgt_cmd_ptrs == NULL) {
4331                 mpt_prt(mpt,
4332                     "mpt_add_target_commands: could not allocate cmd ptrs\n");
4333                 return (FALSE);
4334         }
4335
4336         for (i = 0; i < max; i++) {
4337                 request_t *req;
4338
4339                 req = mpt_get_request(mpt, FALSE);
4340                 if (req == NULL) {
4341                         break;
4342                 }
4343                 req->state |= REQ_STATE_LOCKED;
4344                 mpt->tgt_cmd_ptrs[i] = req;
4345                 mpt_post_target_command(mpt, req, i);
4346         }
4347
4348
4349         if (i == 0) {
4350                 mpt_lprt(mpt, MPT_PRT_ERROR, "could not add any target bufs\n");
4351                 free(mpt->tgt_cmd_ptrs, M_DEVBUF);
4352                 mpt->tgt_cmd_ptrs = NULL;
4353                 return (FALSE);
4354         }
4355
4356         mpt->tgt_cmds_allocated = i;
4357
4358         if (i < max) {
4359                 mpt_lprt(mpt, MPT_PRT_INFO,
4360                     "added %d of %d target bufs\n", i, max);
4361         }
4362         return (i);
4363 }
4364
4365 static int
4366 mpt_enable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4367 {
4368
4369         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4370                 mpt->twildcard = 1;
4371         } else if (lun >= MPT_MAX_LUNS) {
4372                 return (EINVAL);
4373         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4374                 return (EINVAL);
4375         }
4376         if (mpt->tenabled == 0) {
4377                 if (mpt->is_fc) {
4378                         (void) mpt_fc_reset_link(mpt, 0);
4379                 }
4380                 mpt->tenabled = 1;
4381         }
4382         if (lun == CAM_LUN_WILDCARD) {
4383                 mpt->trt_wildcard.enabled = 1;
4384         } else {
4385                 mpt->trt[lun].enabled = 1;
4386         }
4387         return (0);
4388 }
4389
4390 static int
4391 mpt_disable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4392 {
4393         int i;
4394
4395         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4396                 mpt->twildcard = 0;
4397         } else if (lun >= MPT_MAX_LUNS) {
4398                 return (EINVAL);
4399         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4400                 return (EINVAL);
4401         }
4402         if (lun == CAM_LUN_WILDCARD) {
4403                 mpt->trt_wildcard.enabled = 0;
4404         } else {
4405                 mpt->trt[lun].enabled = 0;
4406         }
4407         for (i = 0; i < MPT_MAX_LUNS; i++) {
4408                 if (mpt->trt[lun].enabled) {
4409                         break;
4410                 }
4411         }
4412         if (i == MPT_MAX_LUNS && mpt->twildcard == 0) {
4413                 if (mpt->is_fc) {
4414                         (void) mpt_fc_reset_link(mpt, 0);
4415                 }
4416                 mpt->tenabled = 0;
4417         }
4418         return (0);
4419 }
4420
4421 /*
4422  * Called with MPT lock held
4423  */
4424 static void
4425 mpt_target_start_io(struct mpt_softc *mpt, union ccb *ccb)
4426 {
4427         struct ccb_scsiio *csio = &ccb->csio;
4428         request_t *cmd_req = MPT_TAG_2_REQ(mpt, csio->tag_id);
4429         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
4430
4431         switch (tgt->state) {
4432         case TGT_STATE_IN_CAM:
4433                 break;
4434         case TGT_STATE_MOVING_DATA:
4435                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4436                 xpt_freeze_simq(mpt->sim, 1);
4437                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4438                 tgt->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4439                 xpt_done(ccb);
4440                 return;
4441         default:
4442                 mpt_prt(mpt, "ccb %p flags 0x%x tag 0x%08x had bad request "
4443                     "starting I/O\n", ccb, csio->ccb_h.flags, csio->tag_id);
4444                 mpt_tgt_dump_req_state(mpt, cmd_req);
4445                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
4446                 xpt_done(ccb);
4447                 return;
4448         }
4449
4450         if (csio->dxfer_len) {
4451                 bus_dmamap_callback_t *cb;
4452                 PTR_MSG_TARGET_ASSIST_REQUEST ta;
4453                 request_t *req;
4454
4455                 KASSERT((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE,
4456                     ("dxfer_len %u but direction is NONE", csio->dxfer_len));
4457
4458                 if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4459                         if (mpt->outofbeer == 0) {
4460                                 mpt->outofbeer = 1;
4461                                 xpt_freeze_simq(mpt->sim, 1);
4462                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4463                         }
4464                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4465                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4466                         xpt_done(ccb);
4467                         return;
4468                 }
4469                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4470                 if (sizeof (bus_addr_t) > 4) {
4471                         cb = mpt_execute_req_a64;
4472                 } else {
4473                         cb = mpt_execute_req;
4474                 }
4475
4476                 req->ccb = ccb;
4477                 ccb->ccb_h.ccb_req_ptr = req;
4478
4479                 /*
4480                  * Record the currently active ccb and the
4481                  * request for it in our target state area.
4482                  */
4483                 tgt->ccb = ccb;
4484                 tgt->req = req;
4485
4486                 memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4487                 ta = req->req_vbuf;
4488
4489                 if (mpt->is_sas) {
4490                         PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4491                              cmd_req->req_vbuf;
4492                         ta->QueueTag = ssp->InitiatorTag;
4493                 } else if (mpt->is_spi) {
4494                         PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4495                              cmd_req->req_vbuf;
4496                         ta->QueueTag = sp->Tag;
4497                 }
4498                 ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4499                 ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4500                 ta->ReplyWord = htole32(tgt->reply_desc);
4501                 if (csio->ccb_h.target_lun > MPT_MAX_LUNS) {
4502                         ta->LUN[0] =
4503                             0x40 | ((csio->ccb_h.target_lun >> 8) & 0x3f);
4504                         ta->LUN[1] = csio->ccb_h.target_lun & 0xff;
4505                 } else {
4506                         ta->LUN[1] = csio->ccb_h.target_lun;
4507                 }
4508
4509                 ta->RelativeOffset = tgt->bytes_xfered;
4510                 ta->DataLength = ccb->csio.dxfer_len;
4511                 if (ta->DataLength > tgt->resid) {
4512                         ta->DataLength = tgt->resid;
4513                 }
4514
4515                 /*
4516                  * XXX Should be done after data transfer completes?
4517                  */
4518                 tgt->resid -= csio->dxfer_len;
4519                 tgt->bytes_xfered += csio->dxfer_len;
4520
4521                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
4522                         ta->TargetAssistFlags |=
4523                             TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4524                 }
4525
4526 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4527                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
4528                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
4529                         ta->TargetAssistFlags |=
4530                             TARGET_ASSIST_FLAGS_AUTO_STATUS;
4531                 }
4532 #endif
4533                 tgt->state = TGT_STATE_SETTING_UP_FOR_DATA;
4534
4535                 mpt_lprt(mpt, MPT_PRT_DEBUG,
4536                     "DATA_CCB %p tag %x %u bytes %u resid flg %x req %p:%u "
4537                     "nxtstate=%d\n", csio, csio->tag_id, csio->dxfer_len,
4538                     tgt->resid, ccb->ccb_h.flags, req, req->serno, tgt->state);
4539
4540                 if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
4541                         if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) {
4542                                 int error;
4543                                 int s = splsoftvm();
4544                                 error = bus_dmamap_load(mpt->buffer_dmat,
4545                                     req->dmap, csio->data_ptr, csio->dxfer_len,
4546                                     cb, req, 0);
4547                                 splx(s);
4548                                 if (error == EINPROGRESS) {
4549                                         xpt_freeze_simq(mpt->sim, 1);
4550                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4551                                 }
4552                         } else {
4553                                 /*
4554                                  * We have been given a pointer to single
4555                                  * physical buffer.
4556                                  */
4557                                 struct bus_dma_segment seg;
4558                                 seg.ds_addr = (bus_addr_t)
4559                                     (vm_offset_t)csio->data_ptr;
4560                                 seg.ds_len = csio->dxfer_len;
4561                                 (*cb)(req, &seg, 1, 0);
4562                         }
4563                 } else {
4564                         /*
4565                          * We have been given a list of addresses.
4566                          * This case could be easily supported but they are not
4567                          * currently generated by the CAM subsystem so there
4568                          * is no point in wasting the time right now.
4569                          */
4570                         struct bus_dma_segment *sgs;
4571                         if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
4572                                 (*cb)(req, NULL, 0, EFAULT);
4573                         } else {
4574                                 /* Just use the segments provided */
4575                                 sgs = (struct bus_dma_segment *)csio->data_ptr;
4576                                 (*cb)(req, sgs, csio->sglist_cnt, 0);
4577                         }
4578                 }
4579         } else {
4580                 uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
4581
4582                 /*
4583                  * XXX: I don't know why this seems to happen, but
4584                  * XXX: completing the CCB seems to make things happy.
4585                  * XXX: This seems to happen if the initiator requests
4586                  * XXX: enough data that we have to do multiple CTIOs.
4587                  */
4588                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
4589                         mpt_lprt(mpt, MPT_PRT_DEBUG,
4590                             "Meaningless STATUS CCB (%p): flags %x status %x "
4591                             "resid %d bytes_xfered %u\n", ccb, ccb->ccb_h.flags,
4592                             ccb->ccb_h.status, tgt->resid, tgt->bytes_xfered);
4593                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
4594                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4595                         xpt_done(ccb);
4596                         return;
4597                 }
4598                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
4599                         sp = sense;
4600                         memcpy(sp, &csio->sense_data,
4601                            min(csio->sense_len, MPT_SENSE_SIZE));
4602                 }
4603                 mpt_scsi_tgt_status(mpt, ccb, cmd_req, csio->scsi_status, sp);
4604         }
4605 }
4606
4607 static void
4608 mpt_scsi_tgt_local(struct mpt_softc *mpt, request_t *cmd_req,
4609     uint32_t lun, int send, uint8_t *data, size_t length)
4610 {
4611         mpt_tgt_state_t *tgt;
4612         PTR_MSG_TARGET_ASSIST_REQUEST ta;
4613         SGE_SIMPLE32 *se;
4614         uint32_t flags;
4615         uint8_t *dptr;
4616         bus_addr_t pptr;
4617         request_t *req;
4618
4619         /*
4620          * We enter with resid set to the data load for the command.
4621          */
4622         tgt = MPT_TGT_STATE(mpt, cmd_req);
4623         if (length == 0 || tgt->resid == 0) {
4624                 tgt->resid = 0;
4625                 mpt_scsi_tgt_status(mpt, NULL, cmd_req, 0, NULL);
4626                 return;
4627         }
4628
4629         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4630                 mpt_prt(mpt, "out of resources- dropping local response\n");
4631                 return;
4632         }
4633         tgt->is_local = 1;
4634
4635
4636         memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4637         ta = req->req_vbuf;
4638
4639         if (mpt->is_sas) {
4640                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp = cmd_req->req_vbuf;
4641                 ta->QueueTag = ssp->InitiatorTag;
4642         } else if (mpt->is_spi) {
4643                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp = cmd_req->req_vbuf;
4644                 ta->QueueTag = sp->Tag;
4645         }
4646         ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4647         ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4648         ta->ReplyWord = htole32(tgt->reply_desc);
4649         if (lun > MPT_MAX_LUNS) {
4650                 ta->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4651                 ta->LUN[1] = lun & 0xff;
4652         } else {
4653                 ta->LUN[1] = lun;
4654         }
4655         ta->RelativeOffset = 0;
4656         ta->DataLength = length;
4657
4658         dptr = req->req_vbuf;
4659         dptr += MPT_RQSL(mpt);
4660         pptr = req->req_pbuf;
4661         pptr += MPT_RQSL(mpt);
4662         memcpy(dptr, data, min(length, MPT_RQSL(mpt)));
4663
4664         se = (SGE_SIMPLE32 *) &ta->SGL[0];
4665         memset(se, 0,sizeof (*se));
4666
4667         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
4668         if (send) {
4669                 ta->TargetAssistFlags |= TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4670                 flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
4671         }
4672         se->Address = pptr;
4673         MPI_pSGE_SET_LENGTH(se, length);
4674         flags |= MPI_SGE_FLAGS_LAST_ELEMENT;
4675         flags |= MPI_SGE_FLAGS_END_OF_LIST | MPI_SGE_FLAGS_END_OF_BUFFER;
4676         MPI_pSGE_SET_FLAGS(se, flags);
4677
4678         tgt->ccb = NULL;
4679         tgt->req = req;
4680         tgt->resid -= length;
4681         tgt->bytes_xfered = length;
4682 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4683         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
4684 #else
4685         tgt->state = TGT_STATE_MOVING_DATA;
4686 #endif
4687         mpt_send_cmd(mpt, req);
4688 }
4689
4690 /*
4691  * Abort queued up CCBs
4692  */
4693 static cam_status
4694 mpt_abort_target_ccb(struct mpt_softc *mpt, union ccb *ccb)
4695 {
4696         struct mpt_hdr_stailq *lp;
4697         struct ccb_hdr *srch;
4698         int found = 0;
4699         union ccb *accb = ccb->cab.abort_ccb;
4700         tgt_resource_t *trtp;
4701
4702         mpt_lprt(mpt, MPT_PRT_DEBUG, "aborting ccb %p\n", accb);
4703
4704         if (ccb->ccb_h.target_lun == CAM_LUN_WILDCARD) {
4705                 trtp = &mpt->trt_wildcard;
4706         } else {
4707                 trtp = &mpt->trt[ccb->ccb_h.target_lun];
4708         }
4709
4710         if (accb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
4711                 lp = &trtp->atios;
4712         } else if (accb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
4713                 lp = &trtp->inots;
4714         } else {
4715                 return (CAM_REQ_INVALID);
4716         }
4717
4718         STAILQ_FOREACH(srch, lp, sim_links.stqe) {
4719                 if (srch == &accb->ccb_h) {
4720                         found = 1;
4721                         STAILQ_REMOVE(lp, srch, ccb_hdr, sim_links.stqe);
4722                         break;
4723                 }
4724         }
4725         if (found) {
4726                 accb->ccb_h.status = CAM_REQ_ABORTED;
4727                 xpt_done(accb);
4728                 return (CAM_REQ_CMP);
4729         }
4730         mpt_prt(mpt, "mpt_abort_tgt_ccb: CCB %p not found\n", ccb);
4731         return (CAM_PATH_INVALID);
4732 }
4733
4734 /*
4735  * Ask the MPT to abort the current target command
4736  */
4737 static int
4738 mpt_abort_target_cmd(struct mpt_softc *mpt, request_t *cmd_req)
4739 {
4740         int error;
4741         request_t *req;
4742         PTR_MSG_TARGET_MODE_ABORT abtp;
4743
4744         req = mpt_get_request(mpt, FALSE);
4745         if (req == NULL) {
4746                 return (-1);
4747         }
4748         abtp = req->req_vbuf;
4749         memset(abtp, 0, sizeof (*abtp));
4750
4751         abtp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4752         abtp->AbortType = TARGET_MODE_ABORT_TYPE_EXACT_IO;
4753         abtp->Function = MPI_FUNCTION_TARGET_MODE_ABORT;
4754         abtp->ReplyWord = htole32(MPT_TGT_STATE(mpt, cmd_req)->reply_desc);
4755         error = 0;
4756         if (mpt->is_fc || mpt->is_sas) {
4757                 mpt_send_cmd(mpt, req);
4758         } else {
4759                 error = mpt_send_handshake_cmd(mpt, sizeof(*req), req);
4760         }
4761         return (error);
4762 }
4763
4764 /*
4765  * WE_TRUST_AUTO_GOOD_STATUS- I've found that setting
4766  * TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS leads the
4767  * FC929 to set bogus FC_RSP fields (nonzero residuals
4768  * but w/o RESID fields set). This causes QLogic initiators
4769  * to think maybe that a frame was lost.
4770  *
4771  * WE_CAN_USE_AUTO_REPOST- we can't use AUTO_REPOST because
4772  * we use allocated requests to do TARGET_ASSIST and we
4773  * need to know when to release them.
4774  */
4775
4776 static void
4777 mpt_scsi_tgt_status(struct mpt_softc *mpt, union ccb *ccb, request_t *cmd_req,
4778     uint8_t status, uint8_t const *sense_data)
4779 {
4780         uint8_t *cmd_vbuf;
4781         mpt_tgt_state_t *tgt;
4782         PTR_MSG_TARGET_STATUS_SEND_REQUEST tp;
4783         request_t *req;
4784         bus_addr_t paddr;
4785         int resplen = 0;
4786         uint32_t fl;
4787
4788         cmd_vbuf = cmd_req->req_vbuf;
4789         cmd_vbuf += MPT_RQSL(mpt);
4790         tgt = MPT_TGT_STATE(mpt, cmd_req);
4791
4792         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4793                 if (mpt->outofbeer == 0) {
4794                         mpt->outofbeer = 1;
4795                         xpt_freeze_simq(mpt->sim, 1);
4796                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4797                 }
4798                 if (ccb) {
4799                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4800                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4801                         xpt_done(ccb);
4802                 } else {
4803                         mpt_prt(mpt,
4804                             "could not allocate status request- dropping\n");
4805                 }
4806                 return;
4807         }
4808         req->ccb = ccb;
4809         if (ccb) {
4810                 ccb->ccb_h.ccb_mpt_ptr = mpt;
4811                 ccb->ccb_h.ccb_req_ptr = req;
4812         }
4813
4814         /*
4815          * Record the currently active ccb, if any, and the
4816          * request for it in our target state area.
4817          */
4818         tgt->ccb = ccb;
4819         tgt->req = req;
4820         tgt->state = TGT_STATE_SENDING_STATUS;
4821
4822         tp = req->req_vbuf;
4823         paddr = req->req_pbuf;
4824         paddr += MPT_RQSL(mpt);
4825
4826         memset(tp, 0, sizeof (*tp));
4827         tp->Function = MPI_FUNCTION_TARGET_STATUS_SEND;
4828         if (mpt->is_fc) {
4829                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc =
4830                     (PTR_MPI_TARGET_FCP_CMD_BUFFER) cmd_vbuf;
4831                 uint8_t *sts_vbuf;
4832                 uint32_t *rsp;
4833
4834                 sts_vbuf = req->req_vbuf;
4835                 sts_vbuf += MPT_RQSL(mpt);
4836                 rsp = (uint32_t *) sts_vbuf;
4837                 memcpy(tp->LUN, fc->FcpLun, sizeof (tp->LUN));
4838
4839                 /*
4840                  * The MPI_TARGET_FCP_RSP_BUFFER define is unfortunate.
4841                  * It has to be big-endian in memory and is organized
4842                  * in 32 bit words, which are much easier to deal with
4843                  * as words which are swizzled as needed.
4844                  *
4845                  * All we're filling here is the FC_RSP payload.
4846                  * We may just have the chip synthesize it if
4847                  * we have no residual and an OK status.
4848                  *
4849                  */
4850                 memset(rsp, 0, sizeof (MPI_TARGET_FCP_RSP_BUFFER));
4851
4852                 rsp[2] = status;
4853                 if (tgt->resid) {
4854                         rsp[2] |= 0x800;        /* XXXX NEED MNEMONIC!!!! */
4855                         rsp[3] = htobe32(tgt->resid);
4856 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4857                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4858 #endif
4859                 }
4860                 if (status == SCSI_STATUS_CHECK_COND) {
4861                         int i;
4862
4863                         rsp[2] |= 0x200;        /* XXXX NEED MNEMONIC!!!! */
4864                         rsp[4] = htobe32(MPT_SENSE_SIZE);
4865                         if (sense_data) {
4866                                 memcpy(&rsp[8], sense_data, MPT_SENSE_SIZE);
4867                         } else {
4868                                 mpt_prt(mpt, "mpt_scsi_tgt_status: CHECK CONDI"
4869                                     "TION but no sense data?\n");
4870                                 memset(&rsp, 0, MPT_SENSE_SIZE);
4871                         }
4872                         for (i = 8; i < (8 + (MPT_SENSE_SIZE >> 2)); i++) {
4873                                 rsp[i] = htobe32(rsp[i]);
4874                         }
4875 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4876                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4877 #endif
4878                 }
4879 #ifndef WE_TRUST_AUTO_GOOD_STATUS
4880                 resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4881 #endif
4882                 rsp[2] = htobe32(rsp[2]);
4883         } else if (mpt->is_sas) {
4884                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4885                     (PTR_MPI_TARGET_SSP_CMD_BUFFER) cmd_vbuf;
4886                 memcpy(tp->LUN, ssp->LogicalUnitNumber, sizeof (tp->LUN));
4887         } else {
4888                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4889                     (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) cmd_vbuf;
4890                 tp->StatusCode = status;
4891                 tp->QueueTag = htole16(sp->Tag);
4892                 memcpy(tp->LUN, sp->LogicalUnitNumber, sizeof (tp->LUN));
4893         }
4894
4895         tp->ReplyWord = htole32(tgt->reply_desc);
4896         tp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4897
4898 #ifdef  WE_CAN_USE_AUTO_REPOST
4899         tp->MsgFlags = TARGET_STATUS_SEND_FLAGS_REPOST_CMD_BUFFER;
4900 #endif
4901         if (status == SCSI_STATUS_OK && resplen == 0) {
4902                 tp->MsgFlags |= TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS;
4903         } else {
4904                 tp->StatusDataSGE.u.Address32 = htole32((uint32_t) paddr);
4905                 fl =
4906                         MPI_SGE_FLAGS_HOST_TO_IOC       |
4907                         MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4908                         MPI_SGE_FLAGS_LAST_ELEMENT      |
4909                         MPI_SGE_FLAGS_END_OF_LIST       |
4910                         MPI_SGE_FLAGS_END_OF_BUFFER;
4911                 fl <<= MPI_SGE_FLAGS_SHIFT;
4912                 fl |= resplen;
4913                 tp->StatusDataSGE.FlagsLength = htole32(fl);
4914         }
4915
4916         mpt_lprt(mpt, MPT_PRT_DEBUG,
4917             "STATUS_CCB %p (wit%s sense) tag %x req %p:%u resid %u\n",
4918             ccb, sense_data?"h" : "hout", ccb? ccb->csio.tag_id : -1, req,
4919             req->serno, tgt->resid);
4920         if (ccb) {
4921                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4922                 mpt_req_timeout(req, 60 * hz, mpt_timeout, ccb);
4923         }
4924         mpt_send_cmd(mpt, req);
4925 }
4926
4927 static void
4928 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *mpt, request_t *req, mpt_task_mgmt_t fc,
4929     tgt_resource_t *trtp, int init_id)
4930 {
4931         struct ccb_immed_notify *inot;
4932         mpt_tgt_state_t *tgt;
4933
4934         tgt = MPT_TGT_STATE(mpt, req);
4935         inot = (struct ccb_immed_notify *) STAILQ_FIRST(&trtp->inots);
4936         if (inot == NULL) {
4937                 mpt_lprt(mpt, MPT_PRT_WARN, "no INOTSs- sending back BSY\n");
4938                 mpt_scsi_tgt_status(mpt, NULL, req, SCSI_STATUS_BUSY, NULL);
4939                 return;
4940         }
4941         STAILQ_REMOVE_HEAD(&trtp->inots, sim_links.stqe);
4942         mpt_lprt(mpt, MPT_PRT_DEBUG1,
4943             "Get FREE INOT %p lun %d\n", inot, inot->ccb_h.target_lun);
4944
4945         memset(&inot->sense_data, 0, sizeof (inot->sense_data));
4946         inot->sense_len = 0;
4947         memset(inot->message_args, 0, sizeof (inot->message_args));
4948         inot->initiator_id = init_id;   /* XXX */
4949
4950         /*
4951          * This is a somewhat grotesque attempt to map from task management
4952          * to old style SCSI messages. God help us all.
4953          */
4954         switch (fc) {
4955         case MPT_ABORT_TASK_SET:
4956                 inot->message_args[0] = MSG_ABORT_TAG;
4957                 break;
4958         case MPT_CLEAR_TASK_SET:
4959                 inot->message_args[0] = MSG_CLEAR_TASK_SET;
4960                 break;
4961         case MPT_TARGET_RESET:
4962                 inot->message_args[0] = MSG_TARGET_RESET;
4963                 break;
4964         case MPT_CLEAR_ACA:
4965                 inot->message_args[0] = MSG_CLEAR_ACA;
4966                 break;
4967         case MPT_TERMINATE_TASK:
4968                 inot->message_args[0] = MSG_ABORT_TAG;
4969                 break;
4970         default:
4971                 inot->message_args[0] = MSG_NOOP;
4972                 break;
4973         }
4974         tgt->ccb = (union ccb *) inot;
4975         inot->ccb_h.status = CAM_MESSAGE_RECV|CAM_DEV_QFRZN;
4976         xpt_done((union ccb *)inot);
4977 }
4978
4979 static void
4980 mpt_scsi_tgt_atio(struct mpt_softc *mpt, request_t *req, uint32_t reply_desc)
4981 {
4982         static uint8_t null_iqd[SHORT_INQUIRY_LENGTH] = {
4983             0x7f, 0x00, 0x02, 0x02, 0x20, 0x00, 0x00, 0x32,
4984              'F',  'R',  'E',  'E',  'B',  'S',  'D',  ' ',
4985              'L',  'S',  'I',  '-',  'L',  'O',  'G',  'I',
4986              'C',  ' ',  'N',  'U',  'L',  'D',  'E',  'V',
4987              '0',  '0',  '0',  '1'
4988         };
4989         struct ccb_accept_tio *atiop;
4990         lun_id_t lun;
4991         int tag_action = 0;
4992         mpt_tgt_state_t *tgt;
4993         tgt_resource_t *trtp = NULL;
4994         U8 *lunptr;
4995         U8 *vbuf;
4996         U16 itag;
4997         U16 ioindex;
4998         mpt_task_mgmt_t fct = MPT_NIL_TMT_VALUE;
4999         uint8_t *cdbp;
5000
5001         /*
5002          * Stash info for the current command where we can get at it later.
5003          */
5004         vbuf = req->req_vbuf;
5005         vbuf += MPT_RQSL(mpt);
5006
5007         /*
5008          * Get our state pointer set up.
5009          */
5010         tgt = MPT_TGT_STATE(mpt, req);
5011         if (tgt->state != TGT_STATE_LOADED) {
5012                 mpt_tgt_dump_req_state(mpt, req);
5013                 panic("bad target state in mpt_scsi_tgt_atio");
5014         }
5015         memset(tgt, 0, sizeof (mpt_tgt_state_t));
5016         tgt->state = TGT_STATE_IN_CAM;
5017         tgt->reply_desc = reply_desc;
5018         ioindex = GET_IO_INDEX(reply_desc);
5019         if (mpt->verbose >= MPT_PRT_DEBUG) {
5020                 mpt_dump_data(mpt, "mpt_scsi_tgt_atio response", vbuf,
5021                     max(sizeof (MPI_TARGET_FCP_CMD_BUFFER),
5022                     max(sizeof (MPI_TARGET_SSP_CMD_BUFFER),
5023                     sizeof (MPI_TARGET_SCSI_SPI_CMD_BUFFER))));
5024         }
5025         if (mpt->is_fc) {
5026                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc;
5027                 fc = (PTR_MPI_TARGET_FCP_CMD_BUFFER) vbuf;
5028                 if (fc->FcpCntl[2]) {
5029                         /*
5030                          * Task Management Request
5031                          */
5032                         switch (fc->FcpCntl[2]) {
5033                         case 0x2:
5034                                 fct = MPT_ABORT_TASK_SET;
5035                                 break;
5036                         case 0x4:
5037                                 fct = MPT_CLEAR_TASK_SET;
5038                                 break;
5039                         case 0x20:
5040                                 fct = MPT_TARGET_RESET;
5041                                 break;
5042                         case 0x40:
5043                                 fct = MPT_CLEAR_ACA;
5044                                 break;
5045                         case 0x80:
5046                                 fct = MPT_TERMINATE_TASK;
5047                                 break;
5048                         default:
5049                                 mpt_prt(mpt, "CORRUPTED TASK MGMT BITS: 0x%x\n",
5050                                     fc->FcpCntl[2]);
5051                                 mpt_scsi_tgt_status(mpt, 0, req,
5052                                     SCSI_STATUS_OK, 0);
5053                                 return;
5054                         }
5055                 } else {
5056                         switch (fc->FcpCntl[1]) {
5057                         case 0:
5058                                 tag_action = MSG_SIMPLE_Q_TAG;
5059                                 break;
5060                         case 1:
5061                                 tag_action = MSG_HEAD_OF_Q_TAG;
5062                                 break;
5063                         case 2:
5064                                 tag_action = MSG_ORDERED_Q_TAG;
5065                                 break;
5066                         default:
5067                                 /*
5068                                  * Bah. Ignore Untagged Queing and ACA
5069                                  */
5070                                 tag_action = MSG_SIMPLE_Q_TAG;
5071                                 break;
5072                         }
5073                 }
5074                 tgt->resid = be32toh(fc->FcpDl);
5075                 cdbp = fc->FcpCdb;
5076                 lunptr = fc->FcpLun;
5077                 itag = be16toh(fc->OptionalOxid);
5078         } else if (mpt->is_sas) {
5079                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp;
5080                 ssp = (PTR_MPI_TARGET_SSP_CMD_BUFFER) vbuf;
5081                 cdbp = ssp->CDB;
5082                 lunptr = ssp->LogicalUnitNumber;
5083                 itag = ssp->InitiatorTag;
5084         } else {
5085                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp;
5086                 sp = (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) vbuf;
5087                 cdbp = sp->CDB;
5088                 lunptr = sp->LogicalUnitNumber;
5089                 itag = sp->Tag;
5090         }
5091
5092         /*
5093          * Generate a simple lun
5094          */
5095         switch (lunptr[0] & 0xc0) {
5096         case 0x40:
5097                 lun = ((lunptr[0] & 0x3f) << 8) | lunptr[1];
5098                 break;
5099         case 0:
5100                 lun = lunptr[1];
5101                 break;
5102         default:
5103                 mpt_lprt(mpt, MPT_PRT_ERROR, "cannot handle this type lun\n");
5104                 lun = 0xffff;
5105                 break;
5106         }
5107
5108         /*
5109          * Deal with non-enabled or bad luns here.
5110          */
5111         if (lun >= MPT_MAX_LUNS || mpt->tenabled == 0 ||
5112             mpt->trt[lun].enabled == 0) {
5113                 if (mpt->twildcard) {
5114                         trtp = &mpt->trt_wildcard;
5115                 } else if (fct == MPT_NIL_TMT_VALUE) {
5116                         /*
5117                          * In this case, we haven't got an upstream listener
5118                          * for either a specific lun or wildcard luns. We
5119                          * have to make some sensible response. For regular
5120                          * inquiry, just return some NOT HERE inquiry data.
5121                          * For VPD inquiry, report illegal field in cdb.
5122                          * For REQUEST SENSE, just return NO SENSE data.
5123                          * REPORT LUNS gets illegal command.
5124                          * All other commands get 'no such device'.
5125                          */
5126                         uint8_t *sp, cond, buf[MPT_SENSE_SIZE];
5127                         size_t len;
5128
5129                         memset(buf, 0, MPT_SENSE_SIZE);
5130                         cond = SCSI_STATUS_CHECK_COND;
5131                         buf[0] = 0xf0;
5132                         buf[2] = 0x5;
5133                         buf[7] = 0x8;
5134                         sp = buf;
5135                         tgt->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5136
5137                         switch (cdbp[0]) {
5138                         case INQUIRY:
5139                         {
5140                                 if (cdbp[1] != 0) {
5141                                         buf[12] = 0x26;
5142                                         buf[13] = 0x01;
5143                                         break;
5144                                 }
5145                                 len = min(tgt->resid, cdbp[4]);
5146                                 len = min(len, sizeof (null_iqd));
5147                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5148                                     "local inquiry %ld bytes\n", (long) len);
5149                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5150                                     null_iqd, len);
5151                                 return;
5152                         }
5153                         case REQUEST_SENSE:
5154                         {
5155                                 buf[2] = 0x0;
5156                                 len = min(tgt->resid, cdbp[4]);
5157                                 len = min(len, sizeof (buf));
5158                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5159                                     "local reqsense %ld bytes\n", (long) len);
5160                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5161                                     buf, len);
5162                                 return;
5163                         }
5164                         case REPORT_LUNS:
5165                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "REPORT LUNS\n");
5166                                 buf[12] = 0x26;
5167                                 return;
5168                         default:
5169                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5170                                     "CMD 0x%x to unmanaged lun %u\n",
5171                                     cdbp[0], lun);
5172                                 buf[12] = 0x25;
5173                                 break;
5174                         }
5175                         mpt_scsi_tgt_status(mpt, NULL, req, cond, sp);
5176                         return;
5177                 }
5178                 /* otherwise, leave trtp NULL */
5179         } else {
5180                 trtp = &mpt->trt[lun];
5181         }
5182
5183         /*
5184          * Deal with any task management
5185          */
5186         if (fct != MPT_NIL_TMT_VALUE) {
5187                 if (trtp == NULL) {
5188                         mpt_prt(mpt, "task mgmt function %x but no listener\n",
5189                             fct);
5190                         mpt_scsi_tgt_status(mpt, 0, req,
5191                             SCSI_STATUS_OK, 0);
5192                 } else {
5193                         mpt_scsi_tgt_tsk_mgmt(mpt, req, fct, trtp,
5194                             GET_INITIATOR_INDEX(reply_desc));
5195                 }
5196                 return;
5197         }
5198
5199
5200         atiop = (struct ccb_accept_tio *) STAILQ_FIRST(&trtp->atios);
5201         if (atiop == NULL) {
5202                 mpt_lprt(mpt, MPT_PRT_WARN,
5203                     "no ATIOs for lun %u- sending back %s\n", lun,
5204                     mpt->tenabled? "QUEUE FULL" : "BUSY");
5205                 mpt_scsi_tgt_status(mpt, NULL, req,
5206                     mpt->tenabled? SCSI_STATUS_QUEUE_FULL : SCSI_STATUS_BUSY,
5207                     NULL);
5208                 return;
5209         }
5210         STAILQ_REMOVE_HEAD(&trtp->atios, sim_links.stqe);
5211         mpt_lprt(mpt, MPT_PRT_DEBUG1,
5212             "Get FREE ATIO %p lun %d\n", atiop, atiop->ccb_h.target_lun);
5213         atiop->ccb_h.ccb_mpt_ptr = mpt;
5214         atiop->ccb_h.status = CAM_CDB_RECVD;
5215         atiop->ccb_h.target_lun = lun;
5216         atiop->sense_len = 0;
5217         atiop->init_id = GET_INITIATOR_INDEX(reply_desc);
5218         atiop->cdb_len = mpt_cdblen(cdbp[0], 16);
5219         memcpy(atiop->cdb_io.cdb_bytes, cdbp, atiop->cdb_len);
5220
5221         /*
5222          * The tag we construct here allows us to find the
5223          * original request that the command came in with.
5224          *
5225          * This way we don't have to depend on anything but the
5226          * tag to find things when CCBs show back up from CAM.
5227          */
5228         atiop->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5229         tgt->tag_id = atiop->tag_id;
5230         if (tag_action) {
5231                 atiop->tag_action = tag_action;
5232                 atiop->ccb_h.flags = CAM_TAG_ACTION_VALID;
5233         }
5234         if (mpt->verbose >= MPT_PRT_DEBUG) {
5235                 int i;
5236                 mpt_prt(mpt, "START_CCB %p for lun %u CDB=<", atiop,
5237                     atiop->ccb_h.target_lun);
5238                 for (i = 0; i < atiop->cdb_len; i++) {
5239                         mpt_prtc(mpt, "%02x%c", cdbp[i] & 0xff,
5240                             (i == (atiop->cdb_len - 1))? '>' : ' ');
5241                 }
5242                 mpt_prtc(mpt, " itag %x tag %x rdesc %x dl=%u\n",
5243                     itag, atiop->tag_id, tgt->reply_desc, tgt->resid);
5244         }
5245
5246         xpt_done((union ccb *)atiop);
5247 }
5248
5249 static void
5250 mpt_tgt_dump_tgt_state(struct mpt_softc *mpt, request_t *req)
5251 {
5252         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5253
5254         mpt_prt(mpt, "req %p:%u tgt:rdesc 0x%x resid %u xfrd %u ccb %p treq %p "
5255             "nx %d tag 0x%08x state=%d\n", req, req->serno, tgt->reply_desc,
5256             tgt->resid, tgt->bytes_xfered, tgt->ccb, tgt->req, tgt->nxfers,
5257             tgt->tag_id, tgt->state);
5258 }
5259
5260 static void
5261 mpt_tgt_dump_req_state(struct mpt_softc *mpt, request_t *req)
5262 {
5263
5264         mpt_prt(mpt, "req %p:%u index %u (%x) state %x\n", req, req->serno,
5265             req->index, req->index, req->state);
5266         mpt_tgt_dump_tgt_state(mpt, req);
5267 }
5268
5269 static int
5270 mpt_scsi_tgt_reply_handler(struct mpt_softc *mpt, request_t *req,
5271     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
5272 {
5273         int dbg;
5274         union ccb *ccb;
5275         U16 status;
5276
5277         if (reply_frame == NULL) {
5278                 /*
5279                  * Figure out what the state of the command is.
5280                  */
5281                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5282
5283 #ifdef  INVARIANTS
5284                 mpt_req_spcl(mpt, req, "turbo scsi_tgt_reply", __LINE__);
5285                 if (tgt->req) {
5286                         mpt_req_not_spcl(mpt, tgt->req,
5287                             "turbo scsi_tgt_reply associated req", __LINE__);
5288                 }
5289 #endif
5290                 switch(tgt->state) {
5291                 case TGT_STATE_LOADED:
5292                         /*
5293                          * This is a new command starting.
5294                          */
5295                         mpt_scsi_tgt_atio(mpt, req, reply_desc);
5296                         break;
5297                 case TGT_STATE_MOVING_DATA:
5298                 {
5299                         uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
5300
5301                         ccb = tgt->ccb;
5302                         if (tgt->req == NULL) {
5303                                 panic("mpt: turbo target reply with null "
5304                                     "associated request moving data");
5305                                 /* NOTREACHED */
5306                         }
5307                         if (ccb == NULL) {
5308                                 if (tgt->is_local == 0) {
5309                                         panic("mpt: turbo target reply with "
5310                                             "null associated ccb moving data");
5311                                         /* NOTREACHED */
5312                                 }
5313                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5314                                     "TARGET_ASSIST local done\n");
5315                                 TAILQ_REMOVE(&mpt->request_pending_list,
5316                                     tgt->req, links);
5317                                 mpt_free_request(mpt, tgt->req);
5318                                 tgt->req = NULL;
5319                                 mpt_scsi_tgt_status(mpt, NULL, req,
5320                                     0, NULL);
5321                                 return (TRUE);
5322                         }
5323                         tgt->ccb = NULL;
5324                         tgt->nxfers++;
5325                         mpt_req_untimeout(req, mpt_timeout, ccb);
5326                         mpt_lprt(mpt, MPT_PRT_DEBUG,
5327                             "TARGET_ASSIST %p (req %p:%u) done tag 0x%x\n",
5328                             ccb, tgt->req, tgt->req->serno, ccb->csio.tag_id);
5329                         /*
5330                          * Free the Target Assist Request
5331                          */
5332                         KASSERT(tgt->req->ccb == ccb,
5333                             ("tgt->req %p:%u tgt->req->ccb %p", tgt->req,
5334                             tgt->req->serno, tgt->req->ccb));
5335                         TAILQ_REMOVE(&mpt->request_pending_list,
5336                             tgt->req, links);
5337                         mpt_free_request(mpt, tgt->req);
5338                         tgt->req = NULL;
5339
5340                         /*
5341                          * Do we need to send status now? That is, are
5342                          * we done with all our data transfers?
5343                          */
5344                         if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
5345                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5346                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5347                                 KASSERT(ccb->ccb_h.status,
5348                                     ("zero ccb sts at %d", __LINE__));
5349                                 tgt->state = TGT_STATE_IN_CAM;
5350                                 if (mpt->outofbeer) {
5351                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5352                                         mpt->outofbeer = 0;
5353                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5354                                 }
5355                                 xpt_done(ccb);
5356                                 break;
5357                         }
5358                         /*
5359                          * Otherwise, send status (and sense)
5360                          */
5361                         if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5362                                 sp = sense;
5363                                 memcpy(sp, &ccb->csio.sense_data,
5364                                    min(ccb->csio.sense_len, MPT_SENSE_SIZE));
5365                         }
5366                         mpt_scsi_tgt_status(mpt, ccb, req,
5367                             ccb->csio.scsi_status, sp);
5368                         break;
5369                 }
5370                 case TGT_STATE_SENDING_STATUS:
5371                 case TGT_STATE_MOVING_DATA_AND_STATUS:
5372                 {
5373                         int ioindex;
5374                         ccb = tgt->ccb;
5375
5376                         if (tgt->req == NULL) {
5377                                 panic("mpt: turbo target reply with null "
5378                                     "associated request sending status");
5379                                 /* NOTREACHED */
5380                         }
5381
5382                         if (ccb) {
5383                                 tgt->ccb = NULL;
5384                                 if (tgt->state ==
5385                                     TGT_STATE_MOVING_DATA_AND_STATUS) {
5386                                         tgt->nxfers++;
5387                                 }
5388                                 mpt_req_untimeout(req, mpt_timeout, ccb);
5389                                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5390                                         ccb->ccb_h.status |= CAM_SENT_SENSE;
5391                                 }
5392                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5393                                     "TARGET_STATUS tag %x sts %x flgs %x req "
5394                                     "%p\n", ccb->csio.tag_id, ccb->ccb_h.status,
5395                                     ccb->ccb_h.flags, tgt->req);
5396                                 /*
5397                                  * Free the Target Send Status Request
5398                                  */
5399                                 KASSERT(tgt->req->ccb == ccb,
5400                                     ("tgt->req %p:%u tgt->req->ccb %p",
5401                                     tgt->req, tgt->req->serno, tgt->req->ccb));
5402                                 /*
5403                                  * Notify CAM that we're done
5404                                  */
5405                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5406                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5407                                 KASSERT(ccb->ccb_h.status,
5408                                     ("ZERO ccb sts at %d", __LINE__));
5409                                 tgt->ccb = NULL;
5410                         } else {
5411                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5412                                     "TARGET_STATUS non-CAM for  req %p:%u\n",
5413                                     tgt->req, tgt->req->serno);
5414                         }
5415                         TAILQ_REMOVE(&mpt->request_pending_list,
5416                             tgt->req, links);
5417                         mpt_free_request(mpt, tgt->req);
5418                         tgt->req = NULL;
5419
5420                         /*
5421                          * And re-post the Command Buffer.
5422                          * This will reset the state.
5423                          */
5424                         ioindex = GET_IO_INDEX(reply_desc);
5425                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5426                         tgt->is_local = 0;
5427                         mpt_post_target_command(mpt, req, ioindex);
5428
5429                         /*
5430                          * And post a done for anyone who cares
5431                          */
5432                         if (ccb) {
5433                                 if (mpt->outofbeer) {
5434                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5435                                         mpt->outofbeer = 0;
5436                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5437                                 }
5438                                 xpt_done(ccb);
5439                         }
5440                         break;
5441                 }
5442                 case TGT_STATE_NIL:     /* XXX This Never Happens XXX */
5443                         tgt->state = TGT_STATE_LOADED;
5444                         break;
5445                 default:
5446                         mpt_prt(mpt, "Unknown Target State 0x%x in Context "
5447                             "Reply Function\n", tgt->state);
5448                 }
5449                 return (TRUE);
5450         }
5451
5452         status = le16toh(reply_frame->IOCStatus);
5453         if (status != MPI_IOCSTATUS_SUCCESS) {
5454                 dbg = MPT_PRT_ERROR;
5455         } else {
5456                 dbg = MPT_PRT_DEBUG1;
5457         }
5458
5459         mpt_lprt(mpt, dbg,
5460             "SCSI_TGT REPLY: req=%p:%u reply=%p func=%x IOCstatus 0x%x\n",
5461              req, req->serno, reply_frame, reply_frame->Function, status);
5462
5463         switch (reply_frame->Function) {
5464         case MPI_FUNCTION_TARGET_CMD_BUFFER_POST:
5465         {
5466                 mpt_tgt_state_t *tgt;
5467 #ifdef  INVARIANTS
5468                 mpt_req_spcl(mpt, req, "tgt reply BUFFER POST", __LINE__);
5469 #endif
5470                 if (status != MPI_IOCSTATUS_SUCCESS) {
5471                         /*
5472                          * XXX What to do?
5473                          */
5474                         break;
5475                 }
5476                 tgt = MPT_TGT_STATE(mpt, req);
5477                 KASSERT(tgt->state == TGT_STATE_LOADING,
5478                     ("bad state 0x%x on reply to buffer post", tgt->state));
5479                 mpt_assign_serno(mpt, req);
5480                 tgt->state = TGT_STATE_LOADED;
5481                 break;
5482         }
5483         case MPI_FUNCTION_TARGET_ASSIST:
5484 #ifdef  INVARIANTS
5485                 mpt_req_not_spcl(mpt, req, "tgt reply TARGET ASSIST", __LINE__);
5486 #endif
5487                 mpt_prt(mpt, "target assist completion\n");
5488                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5489                 mpt_free_request(mpt, req);
5490                 break;
5491         case MPI_FUNCTION_TARGET_STATUS_SEND:
5492 #ifdef  INVARIANTS
5493                 mpt_req_not_spcl(mpt, req, "tgt reply STATUS SEND", __LINE__);
5494 #endif
5495                 mpt_prt(mpt, "status send completion\n");
5496                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5497                 mpt_free_request(mpt, req);
5498                 break;
5499         case MPI_FUNCTION_TARGET_MODE_ABORT:
5500         {
5501                 PTR_MSG_TARGET_MODE_ABORT_REPLY abtrp =
5502                     (PTR_MSG_TARGET_MODE_ABORT_REPLY) reply_frame;
5503                 PTR_MSG_TARGET_MODE_ABORT abtp =
5504                     (PTR_MSG_TARGET_MODE_ABORT) req->req_vbuf;
5505                 uint32_t cc = GET_IO_INDEX(le32toh(abtp->ReplyWord));
5506 #ifdef  INVARIANTS
5507                 mpt_req_not_spcl(mpt, req, "tgt reply TMODE ABORT", __LINE__);
5508 #endif
5509                 mpt_prt(mpt, "ABORT RX_ID 0x%x Complete; status 0x%x cnt %u\n",
5510                     cc, le16toh(abtrp->IOCStatus), le32toh(abtrp->AbortCount));
5511                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5512                 mpt_free_request(mpt, req);
5513                 break;
5514         }
5515         default:
5516                 mpt_prt(mpt, "Unknown Target Address Reply Function code: "
5517                     "0x%x\n", reply_frame->Function);
5518                 break;
5519         }
5520         return (TRUE);
5521 }