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_ccb(9) or, in simple cases, called
1258  * directly.
1259  *
1260  * Takes a list of physical segments and builds the SGL for SCSI IO command
1261  * and forwards the commard to the IOC after one last check that CAM has not
1262  * aborted the transaction.
1263  */
1264 static void
1265 mpt_execute_req_a64(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1266 {
1267         request_t *req, *trq;
1268         char *mpt_off;
1269         union ccb *ccb;
1270         struct mpt_softc *mpt;
1271         bus_addr_t chain_list_addr;
1272         int first_lim, seg, this_seg_lim;
1273         uint32_t addr, cur_off, flags, nxt_off, tf;
1274         void *sglp = NULL;
1275         MSG_REQUEST_HEADER *hdrp;
1276         SGE_SIMPLE64 *se;
1277         SGE_CHAIN64 *ce;
1278         int istgt = 0;
1279
1280         req = (request_t *)arg;
1281         ccb = req->ccb;
1282
1283         mpt = ccb->ccb_h.ccb_mpt_ptr;
1284         req = ccb->ccb_h.ccb_req_ptr;
1285
1286         hdrp = req->req_vbuf;
1287         mpt_off = req->req_vbuf;
1288
1289         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1290                 error = EFBIG;
1291         }
1292
1293         if (error == 0) {
1294                 switch (hdrp->Function) {
1295                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1296                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1297                         istgt = 0;
1298                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1299                         break;
1300                 case MPI_FUNCTION_TARGET_ASSIST:
1301                         istgt = 1;
1302                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1303                         break;
1304                 default:
1305                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req_a64\n",
1306                             hdrp->Function);
1307                         error = EINVAL;
1308                         break;
1309                 }
1310         }
1311
1312         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1313                 error = EFBIG;
1314                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1315                     nseg, mpt->max_seg_cnt);
1316         }
1317
1318 bad:
1319         if (error != 0) {
1320                 if (error != EFBIG && error != ENOMEM) {
1321                         mpt_prt(mpt, "mpt_execute_req_a64: err %d\n", error);
1322                 }
1323                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1324                         cam_status status;
1325                         mpt_freeze_ccb(ccb);
1326                         if (error == EFBIG) {
1327                                 status = CAM_REQ_TOO_BIG;
1328                         } else if (error == ENOMEM) {
1329                                 if (mpt->outofbeer == 0) {
1330                                         mpt->outofbeer = 1;
1331                                         xpt_freeze_simq(mpt->sim, 1);
1332                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1333                                             "FREEZEQ\n");
1334                                 }
1335                                 status = CAM_REQUEUE_REQ;
1336                         } else {
1337                                 status = CAM_REQ_CMP_ERR;
1338                         }
1339                         mpt_set_ccb_status(ccb, status);
1340                 }
1341                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1342                         request_t *cmd_req =
1343                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1344                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1345                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1346                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1347                 }
1348                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1349                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d", __LINE__));
1350                 xpt_done(ccb);
1351                 mpt_free_request(mpt, req);
1352                 return;
1353         }
1354
1355         /*
1356          * No data to transfer?
1357          * Just make a single simple SGL with zero length.
1358          */
1359
1360         if (mpt->verbose >= MPT_PRT_DEBUG) {
1361                 int tidx = ((char *)sglp) - mpt_off;
1362                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1363         }
1364
1365         if (nseg == 0) {
1366                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1367                 MPI_pSGE_SET_FLAGS(se1,
1368                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1369                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1370                 se1->FlagsLength = htole32(se1->FlagsLength);
1371                 goto out;
1372         }
1373
1374
1375         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1376         if (istgt == 0) {
1377                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1378                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1379                 }
1380         } else {
1381                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1382                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1383                 }
1384         }
1385
1386         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
1387                 bus_dmasync_op_t op;
1388                 if (istgt == 0) {
1389                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1390                                 op = BUS_DMASYNC_PREREAD;
1391                         } else {
1392                                 op = BUS_DMASYNC_PREWRITE;
1393                         }
1394                 } else {
1395                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1396                                 op = BUS_DMASYNC_PREWRITE;
1397                         } else {
1398                                 op = BUS_DMASYNC_PREREAD;
1399                         }
1400                 }
1401                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1402         }
1403
1404         /*
1405          * Okay, fill in what we can at the end of the command frame.
1406          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1407          * the command frame.
1408          *
1409          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1410          * SIMPLE64 pointers and start doing CHAIN64 entries after
1411          * that.
1412          */
1413
1414         if (nseg < MPT_NSGL_FIRST(mpt)) {
1415                 first_lim = nseg;
1416         } else {
1417                 /*
1418                  * Leave room for CHAIN element
1419                  */
1420                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1421         }
1422
1423         se = (SGE_SIMPLE64 *) sglp;
1424         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1425                 tf = flags;
1426                 memset(se, 0, sizeof (*se));
1427                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1428                 se->Address.Low = htole32(dm_segs->ds_addr & 0xffffffff);
1429                 if (sizeof(bus_addr_t) > 4) {
1430                         addr = ((uint64_t)dm_segs->ds_addr) >> 32;
1431                         /* SAS1078 36GB limitation WAR */
1432                         if (mpt->is_1078 && (((uint64_t)dm_segs->ds_addr +
1433                             MPI_SGE_LENGTH(se->FlagsLength)) >> 32) == 9) {
1434                                 addr |= (1 << 31);
1435                                 tf |= MPI_SGE_FLAGS_LOCAL_ADDRESS;
1436                         }
1437                         se->Address.High = htole32(addr);
1438                 }
1439                 if (seg == first_lim - 1) {
1440                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1441                 }
1442                 if (seg == nseg - 1) {
1443                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1444                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1445                 }
1446                 MPI_pSGE_SET_FLAGS(se, tf);
1447                 se->FlagsLength = htole32(se->FlagsLength);
1448         }
1449
1450         if (seg == nseg) {
1451                 goto out;
1452         }
1453
1454         /*
1455          * Tell the IOC where to find the first chain element.
1456          */
1457         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1458         nxt_off = MPT_RQSL(mpt);
1459         trq = req;
1460
1461         /*
1462          * Make up the rest of the data segments out of a chain element
1463          * (contained in the current request frame) which points to
1464          * SIMPLE64 elements in the next request frame, possibly ending
1465          * with *another* chain element (if there's more).
1466          */
1467         while (seg < nseg) {
1468                 /*
1469                  * Point to the chain descriptor. Note that the chain
1470                  * descriptor is at the end of the *previous* list (whether
1471                  * chain or simple).
1472                  */
1473                 ce = (SGE_CHAIN64 *) se;
1474
1475                 /*
1476                  * Before we change our current pointer, make  sure we won't
1477                  * overflow the request area with this frame. Note that we
1478                  * test against 'greater than' here as it's okay in this case
1479                  * to have next offset be just outside the request area.
1480                  */
1481                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1482                         nxt_off = MPT_REQUEST_AREA;
1483                         goto next_chain;
1484                 }
1485
1486                 /*
1487                  * Set our SGE element pointer to the beginning of the chain
1488                  * list and update our next chain list offset.
1489                  */
1490                 se = (SGE_SIMPLE64 *) &mpt_off[nxt_off];
1491                 cur_off = nxt_off;
1492                 nxt_off += MPT_RQSL(mpt);
1493
1494                 /*
1495                  * Now initialize the chain descriptor.
1496                  */
1497                 memset(ce, 0, sizeof (*ce));
1498
1499                 /*
1500                  * Get the physical address of the chain list.
1501                  */
1502                 chain_list_addr = trq->req_pbuf;
1503                 chain_list_addr += cur_off;
1504                 if (sizeof (bus_addr_t) > 4) {
1505                         ce->Address.High =
1506                             htole32(((uint64_t)chain_list_addr) >> 32);
1507                 }
1508                 ce->Address.Low = htole32(chain_list_addr & 0xffffffff);
1509                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT |
1510                             MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1511
1512                 /*
1513                  * If we have more than a frame's worth of segments left,
1514                  * set up the chain list to have the last element be another
1515                  * chain descriptor.
1516                  */
1517                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1518                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1519                         /*
1520                          * The length of the chain is the length in bytes of the
1521                          * number of segments plus the next chain element.
1522                          *
1523                          * The next chain descriptor offset is the length,
1524                          * in words, of the number of segments.
1525                          */
1526                         ce->Length = (this_seg_lim - seg) *
1527                             sizeof (SGE_SIMPLE64);
1528                         ce->NextChainOffset = ce->Length >> 2;
1529                         ce->Length += sizeof (SGE_CHAIN64);
1530                 } else {
1531                         this_seg_lim = nseg;
1532                         ce->Length = (this_seg_lim - seg) *
1533                             sizeof (SGE_SIMPLE64);
1534                 }
1535                 ce->Length = htole16(ce->Length);
1536
1537                 /*
1538                  * Fill in the chain list SGE elements with our segment data.
1539                  *
1540                  * If we're the last element in this chain list, set the last
1541                  * element flag. If we're the completely last element period,
1542                  * set the end of list and end of buffer flags.
1543                  */
1544                 while (seg < this_seg_lim) {
1545                         tf = flags;
1546                         memset(se, 0, sizeof (*se));
1547                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1548                         se->Address.Low = htole32(dm_segs->ds_addr &
1549                             0xffffffff);
1550                         if (sizeof (bus_addr_t) > 4) {
1551                                 addr = ((uint64_t)dm_segs->ds_addr) >> 32;
1552                                 /* SAS1078 36GB limitation WAR */
1553                                 if (mpt->is_1078 &&
1554                                     (((uint64_t)dm_segs->ds_addr +
1555                                     MPI_SGE_LENGTH(se->FlagsLength)) >>
1556                                     32) == 9) {
1557                                         addr |= (1 << 31);
1558                                         tf |= MPI_SGE_FLAGS_LOCAL_ADDRESS;
1559                                 }
1560                                 se->Address.High = htole32(addr);
1561                         }
1562                         if (seg == this_seg_lim - 1) {
1563                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1564                         }
1565                         if (seg == nseg - 1) {
1566                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1567                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1568                         }
1569                         MPI_pSGE_SET_FLAGS(se, tf);
1570                         se->FlagsLength = htole32(se->FlagsLength);
1571                         se++;
1572                         seg++;
1573                         dm_segs++;
1574                 }
1575
1576     next_chain:
1577                 /*
1578                  * If we have more segments to do and we've used up all of
1579                  * the space in a request area, go allocate another one
1580                  * and chain to that.
1581                  */
1582                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1583                         request_t *nrq;
1584
1585                         nrq = mpt_get_request(mpt, FALSE);
1586
1587                         if (nrq == NULL) {
1588                                 error = ENOMEM;
1589                                 goto bad;
1590                         }
1591
1592                         /*
1593                          * Append the new request area on the tail of our list.
1594                          */
1595                         if ((trq = req->chain) == NULL) {
1596                                 req->chain = nrq;
1597                         } else {
1598                                 while (trq->chain != NULL) {
1599                                         trq = trq->chain;
1600                                 }
1601                                 trq->chain = nrq;
1602                         }
1603                         trq = nrq;
1604                         mpt_off = trq->req_vbuf;
1605                         if (mpt->verbose >= MPT_PRT_DEBUG) {
1606                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
1607                         }
1608                         nxt_off = 0;
1609                 }
1610         }
1611 out:
1612
1613         /*
1614          * Last time we need to check if this CCB needs to be aborted.
1615          */
1616         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1617                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1618                         request_t *cmd_req =
1619                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1620                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1621                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1622                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1623                 }
1624                 mpt_prt(mpt,
1625                     "mpt_execute_req_a64: I/O cancelled (status 0x%x)\n",
1626                     ccb->ccb_h.status & CAM_STATUS_MASK);
1627                 if (nseg) {
1628                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
1629                 }
1630                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1631                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d", __LINE__));
1632                 xpt_done(ccb);
1633                 mpt_free_request(mpt, req);
1634                 return;
1635         }
1636
1637         ccb->ccb_h.status |= CAM_SIM_QUEUED;
1638         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
1639                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
1640                     mpt_timeout, ccb);
1641         }
1642         if (mpt->verbose > MPT_PRT_DEBUG) {
1643                 int nc = 0;
1644                 mpt_print_request(req->req_vbuf);
1645                 for (trq = req->chain; trq; trq = trq->chain) {
1646                         printf("  Additional Chain Area %d\n", nc++);
1647                         mpt_dump_sgl(trq->req_vbuf, 0);
1648                 }
1649         }
1650
1651         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1652                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1653                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
1654 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
1655                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
1656                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
1657                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
1658                 } else {
1659                         tgt->state = TGT_STATE_MOVING_DATA;
1660                 }
1661 #else
1662                 tgt->state = TGT_STATE_MOVING_DATA;
1663 #endif
1664         }
1665         mpt_send_cmd(mpt, req);
1666 }
1667
1668 static void
1669 mpt_execute_req(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1670 {
1671         request_t *req, *trq;
1672         char *mpt_off;
1673         union ccb *ccb;
1674         struct mpt_softc *mpt;
1675         int seg, first_lim;
1676         uint32_t flags, nxt_off;
1677         void *sglp = NULL;
1678         MSG_REQUEST_HEADER *hdrp;
1679         SGE_SIMPLE32 *se;
1680         SGE_CHAIN32 *ce;
1681         int istgt = 0;
1682
1683         req = (request_t *)arg;
1684         ccb = req->ccb;
1685
1686         mpt = ccb->ccb_h.ccb_mpt_ptr;
1687         req = ccb->ccb_h.ccb_req_ptr;
1688
1689         hdrp = req->req_vbuf;
1690         mpt_off = req->req_vbuf;
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_DIR_MASK) != CAM_DIR_NONE) {
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) {
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         int error;
2066
2067         /* Get the pointer for the physical addapter */
2068         mpt = ccb->ccb_h.ccb_mpt_ptr;
2069         raid_passthru = (sim == mpt->phydisk_sim);
2070
2071         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
2072                 if (mpt->outofbeer == 0) {
2073                         mpt->outofbeer = 1;
2074                         xpt_freeze_simq(mpt->sim, 1);
2075                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
2076                 }
2077                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2078                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
2079                 xpt_done(ccb);
2080                 return;
2081         }
2082 #ifdef  INVARIANTS
2083         mpt_req_not_spcl(mpt, req, "mpt_start", __LINE__);
2084 #endif
2085
2086         if (sizeof (bus_addr_t) > 4) {
2087                 cb = mpt_execute_req_a64;
2088         } else {
2089                 cb = mpt_execute_req;
2090         }
2091
2092         /*
2093          * Link the ccb and the request structure so we can find
2094          * the other knowing either the request or the ccb
2095          */
2096         req->ccb = ccb;
2097         ccb->ccb_h.ccb_req_ptr = req;
2098
2099         /* Now we build the command for the IOC */
2100         mpt_req = req->req_vbuf;
2101         memset(mpt_req, 0, sizeof (MSG_SCSI_IO_REQUEST));
2102
2103         mpt_req->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2104         if (raid_passthru) {
2105                 mpt_req->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2106                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
2107                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2108                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
2109                         xpt_done(ccb);
2110                         return;
2111                 }
2112                 mpt_req->Bus = 0;       /* we never set bus here */
2113         } else {
2114                 tgt = ccb->ccb_h.target_id;
2115                 mpt_req->Bus = 0;       /* XXX */
2116
2117         }
2118         mpt_req->SenseBufferLength =
2119                 (csio->sense_len < MPT_SENSE_SIZE) ?
2120                  csio->sense_len : MPT_SENSE_SIZE;
2121
2122         /*
2123          * We use the message context to find the request structure when we
2124          * Get the command completion interrupt from the IOC.
2125          */
2126         mpt_req->MsgContext = htole32(req->index | scsi_io_handler_id);
2127
2128         /* Which physical device to do the I/O on */
2129         mpt_req->TargetID = tgt;
2130
2131         /* We assume a single level LUN type */
2132         if (ccb->ccb_h.target_lun >= MPT_MAX_LUNS) {
2133                 mpt_req->LUN[0] = 0x40 | ((ccb->ccb_h.target_lun >> 8) & 0x3f);
2134                 mpt_req->LUN[1] = ccb->ccb_h.target_lun & 0xff;
2135         } else {
2136                 mpt_req->LUN[1] = ccb->ccb_h.target_lun;
2137         }
2138
2139         /* Set the direction of the transfer */
2140         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2141                 mpt_req->Control = MPI_SCSIIO_CONTROL_READ;
2142         } else if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2143                 mpt_req->Control = MPI_SCSIIO_CONTROL_WRITE;
2144         } else {
2145                 mpt_req->Control = MPI_SCSIIO_CONTROL_NODATATRANSFER;
2146         }
2147
2148         if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0) {
2149                 switch(ccb->csio.tag_action) {
2150                 case MSG_HEAD_OF_Q_TAG:
2151                         mpt_req->Control |= MPI_SCSIIO_CONTROL_HEADOFQ;
2152                         break;
2153                 case MSG_ACA_TASK:
2154                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ACAQ;
2155                         break;
2156                 case MSG_ORDERED_Q_TAG:
2157                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ORDEREDQ;
2158                         break;
2159                 case MSG_SIMPLE_Q_TAG:
2160                 default:
2161                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2162                         break;
2163                 }
2164         } else {
2165                 if (mpt->is_fc || mpt->is_sas) {
2166                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2167                 } else {
2168                         /* XXX No such thing for a target doing packetized. */
2169                         mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
2170                 }
2171         }
2172
2173         if (mpt->is_spi) {
2174                 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) {
2175                         mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT;
2176                 }
2177         }
2178         mpt_req->Control = htole32(mpt_req->Control);
2179
2180         /* Copy the scsi command block into place */
2181         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
2182                 bcopy(csio->cdb_io.cdb_ptr, mpt_req->CDB, csio->cdb_len);
2183         } else {
2184                 bcopy(csio->cdb_io.cdb_bytes, mpt_req->CDB, csio->cdb_len);
2185         }
2186
2187         mpt_req->CDBLength = csio->cdb_len;
2188         mpt_req->DataLength = htole32(csio->dxfer_len);
2189         mpt_req->SenseBufferLowAddr = htole32(req->sense_pbuf);
2190
2191         /*
2192          * Do a *short* print here if we're set to MPT_PRT_DEBUG
2193          */
2194         if (mpt->verbose == MPT_PRT_DEBUG) {
2195                 U32 df;
2196                 mpt_prt(mpt, "mpt_start: %s op 0x%x ",
2197                     (mpt_req->Function == MPI_FUNCTION_SCSI_IO_REQUEST)?
2198                     "SCSI_IO_REQUEST" : "SCSI_IO_PASSTHRU", mpt_req->CDB[0]);
2199                 df = mpt_req->Control & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
2200                 if (df != MPI_SCSIIO_CONTROL_NODATATRANSFER) {
2201                         mpt_prtc(mpt, "(%s %u byte%s ",
2202                             (df == MPI_SCSIIO_CONTROL_READ)?
2203                             "read" : "write",  csio->dxfer_len,
2204                             (csio->dxfer_len == 1)? ")" : "s)");
2205                 }
2206                 mpt_prtc(mpt, "tgt %u lun %u req %p:%u\n", tgt,
2207                     ccb->ccb_h.target_lun, req, req->serno);
2208         }
2209
2210         error = bus_dmamap_load_ccb(mpt->buffer_dmat, req->dmap, ccb, cb,
2211             req, 0);
2212         if (error == EINPROGRESS) {
2213                 /*
2214                  * So as to maintain ordering, freeze the controller queue
2215                  * until our mapping is returned.
2216                  */
2217                 xpt_freeze_simq(mpt->sim, 1);
2218                 ccbh->status |= CAM_RELEASE_SIMQ;
2219         }
2220 }
2221
2222 static int
2223 mpt_bus_reset(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun,
2224     int sleep_ok)
2225 {
2226         int   error;
2227         uint16_t status;
2228         uint8_t response;
2229
2230         error = mpt_scsi_send_tmf(mpt,
2231             (tgt != CAM_TARGET_WILDCARD || lun != CAM_LUN_WILDCARD) ?
2232             MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET :
2233             MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
2234             mpt->is_fc ? MPI_SCSITASKMGMT_MSGFLAGS_LIP_RESET_OPTION : 0,
2235             0,  /* XXX How do I get the channel ID? */
2236             tgt != CAM_TARGET_WILDCARD ? tgt : 0,
2237             lun != CAM_LUN_WILDCARD ? lun : 0,
2238             0, sleep_ok);
2239
2240         if (error != 0) {
2241                 /*
2242                  * mpt_scsi_send_tmf hard resets on failure, so no
2243                  * need to do so here.
2244                  */
2245                 mpt_prt(mpt,
2246                     "mpt_bus_reset: mpt_scsi_send_tmf returned %d\n", error);
2247                 return (EIO);
2248         }
2249
2250         /* Wait for bus reset to be processed by the IOC. */
2251         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
2252             REQ_STATE_DONE, sleep_ok, 5000);
2253
2254         status = le16toh(mpt->tmf_req->IOCStatus);
2255         response = mpt->tmf_req->ResponseCode;
2256         mpt->tmf_req->state = REQ_STATE_FREE;
2257
2258         if (error) {
2259                 mpt_prt(mpt, "mpt_bus_reset: Reset timed-out. "
2260                     "Resetting controller.\n");
2261                 mpt_reset(mpt, TRUE);
2262                 return (ETIMEDOUT);
2263         }
2264
2265         if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
2266                 mpt_prt(mpt, "mpt_bus_reset: TMF IOC Status 0x%x. "
2267                     "Resetting controller.\n", status);
2268                 mpt_reset(mpt, TRUE);
2269                 return (EIO);
2270         }
2271
2272         if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
2273             response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
2274                 mpt_prt(mpt, "mpt_bus_reset: TMF Response 0x%x. "
2275                     "Resetting controller.\n", response);
2276                 mpt_reset(mpt, TRUE);
2277                 return (EIO);
2278         }
2279         return (0);
2280 }
2281
2282 static int
2283 mpt_fc_reset_link(struct mpt_softc *mpt, int dowait)
2284 {
2285         int r = 0;
2286         request_t *req;
2287         PTR_MSG_FC_PRIMITIVE_SEND_REQUEST fc;
2288
2289         req = mpt_get_request(mpt, FALSE);
2290         if (req == NULL) {
2291                 return (ENOMEM);
2292         }
2293         fc = req->req_vbuf;
2294         memset(fc, 0, sizeof(*fc));
2295         fc->SendFlags = MPI_FC_PRIM_SEND_FLAGS_RESET_LINK;
2296         fc->Function = MPI_FUNCTION_FC_PRIMITIVE_SEND;
2297         fc->MsgContext = htole32(req->index | fc_els_handler_id);
2298         mpt_send_cmd(mpt, req);
2299         if (dowait) {
2300                 r = mpt_wait_req(mpt, req, REQ_STATE_DONE,
2301                     REQ_STATE_DONE, FALSE, 60 * 1000);
2302                 if (r == 0) {
2303                         mpt_free_request(mpt, req);
2304                 }
2305         }
2306         return (r);
2307 }
2308
2309 static int
2310 mpt_cam_event(struct mpt_softc *mpt, request_t *req,
2311               MSG_EVENT_NOTIFY_REPLY *msg)
2312 {
2313         uint32_t data0, data1;
2314
2315         data0 = le32toh(msg->Data[0]);
2316         data1 = le32toh(msg->Data[1]);
2317         switch(msg->Event & 0xFF) {
2318         case MPI_EVENT_UNIT_ATTENTION:
2319                 mpt_prt(mpt, "UNIT ATTENTION: Bus: 0x%02x TargetID: 0x%02x\n",
2320                     (data0 >> 8) & 0xff, data0 & 0xff);
2321                 break;
2322
2323         case MPI_EVENT_IOC_BUS_RESET:
2324                 /* We generated a bus reset */
2325                 mpt_prt(mpt, "IOC Generated Bus Reset Port: %d\n",
2326                     (data0 >> 8) & 0xff);
2327                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2328                 break;
2329
2330         case MPI_EVENT_EXT_BUS_RESET:
2331                 /* Someone else generated a bus reset */
2332                 mpt_prt(mpt, "External Bus Reset Detected\n");
2333                 /*
2334                  * These replies don't return EventData like the MPI
2335                  * spec says they do
2336                  */
2337                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2338                 break;
2339
2340         case MPI_EVENT_RESCAN:
2341 #if __FreeBSD_version >= 600000
2342         {
2343                 union ccb *ccb;
2344                 uint32_t pathid;
2345                 /*
2346                  * In general this means a device has been added to the loop.
2347                  */
2348                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2349                 if (mpt->ready == 0) {
2350                         break;
2351                 }
2352                 if (mpt->phydisk_sim) {
2353                         pathid = cam_sim_path(mpt->phydisk_sim);
2354                 } else {
2355                         pathid = cam_sim_path(mpt->sim);
2356                 }
2357                 /*
2358                  * Allocate a CCB, create a wildcard path for this bus,
2359                  * and schedule a rescan.
2360                  */
2361                 ccb = xpt_alloc_ccb_nowait();
2362                 if (ccb == NULL) {
2363                         mpt_prt(mpt, "unable to alloc CCB for rescan\n");
2364                         break;
2365                 }
2366
2367                 if (xpt_create_path(&ccb->ccb_h.path, NULL, pathid,
2368                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2369                         mpt_prt(mpt, "unable to create path for rescan\n");
2370                         xpt_free_ccb(ccb);
2371                         break;
2372                 }
2373                 xpt_rescan(ccb);
2374                 break;
2375         }
2376 #else
2377                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2378                 break;
2379 #endif
2380         case MPI_EVENT_LINK_STATUS_CHANGE:
2381                 mpt_prt(mpt, "Port %d: LinkState: %s\n",
2382                     (data1 >> 8) & 0xff,
2383                     ((data0 & 0xff) == 0)?  "Failed" : "Active");
2384                 break;
2385
2386         case MPI_EVENT_LOOP_STATE_CHANGE:
2387                 switch ((data0 >> 16) & 0xff) {
2388                 case 0x01:
2389                         mpt_prt(mpt,
2390                             "Port 0x%x: FC LinkEvent: LIP(%02x,%02x) "
2391                             "(Loop Initialization)\n",
2392                             (data1 >> 8) & 0xff,
2393                             (data0 >> 8) & 0xff,
2394                             (data0     ) & 0xff);
2395                         switch ((data0 >> 8) & 0xff) {
2396                         case 0xF7:
2397                                 if ((data0 & 0xff) == 0xF7) {
2398                                         mpt_prt(mpt, "Device needs AL_PA\n");
2399                                 } else {
2400                                         mpt_prt(mpt, "Device %02x doesn't like "
2401                                             "FC performance\n",
2402                                             data0 & 0xFF);
2403                                 }
2404                                 break;
2405                         case 0xF8:
2406                                 if ((data0 & 0xff) == 0xF7) {
2407                                         mpt_prt(mpt, "Device had loop failure "
2408                                             "at its receiver prior to acquiring"
2409                                             " AL_PA\n");
2410                                 } else {
2411                                         mpt_prt(mpt, "Device %02x detected loop"
2412                                             " failure at its receiver\n",
2413                                             data0 & 0xFF);
2414                                 }
2415                                 break;
2416                         default:
2417                                 mpt_prt(mpt, "Device %02x requests that device "
2418                                     "%02x reset itself\n",
2419                                     data0 & 0xFF,
2420                                     (data0 >> 8) & 0xFF);
2421                                 break;
2422                         }
2423                         break;
2424                 case 0x02:
2425                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2426                             "LPE(%02x,%02x) (Loop Port Enable)\n",
2427                             (data1 >> 8) & 0xff, /* Port */
2428                             (data0 >>  8) & 0xff, /* Character 3 */
2429                             (data0      ) & 0xff  /* Character 4 */);
2430                         break;
2431                 case 0x03:
2432                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2433                             "LPB(%02x,%02x) (Loop Port Bypass)\n",
2434                             (data1 >> 8) & 0xff, /* Port */
2435                             (data0 >> 8) & 0xff, /* Character 3 */
2436                             (data0     ) & 0xff  /* Character 4 */);
2437                         break;
2438                 default:
2439                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: Unknown "
2440                             "FC event (%02x %02x %02x)\n",
2441                             (data1 >> 8) & 0xff, /* Port */
2442                             (data0 >> 16) & 0xff, /* Event */
2443                             (data0 >>  8) & 0xff, /* Character 3 */
2444                             (data0      ) & 0xff  /* Character 4 */);
2445                 }
2446                 break;
2447
2448         case MPI_EVENT_LOGOUT:
2449                 mpt_prt(mpt, "FC Logout Port: %d N_PortID: %02x\n",
2450                     (data1 >> 8) & 0xff, data0);
2451                 break;
2452         case MPI_EVENT_QUEUE_FULL:
2453         {
2454                 struct cam_sim *sim;
2455                 struct cam_path *tmppath;
2456                 struct ccb_relsim crs;
2457                 PTR_EVENT_DATA_QUEUE_FULL pqf;
2458                 lun_id_t lun_id;
2459
2460                 pqf = (PTR_EVENT_DATA_QUEUE_FULL)msg->Data;
2461                 pqf->CurrentDepth = le16toh(pqf->CurrentDepth);
2462                 mpt_prt(mpt, "QUEUE FULL EVENT: Bus 0x%02x Target 0x%02x Depth "
2463                     "%d\n", pqf->Bus, pqf->TargetID, pqf->CurrentDepth);
2464                 if (mpt->phydisk_sim && mpt_is_raid_member(mpt,
2465                     pqf->TargetID) != 0) {
2466                         sim = mpt->phydisk_sim;
2467                 } else {
2468                         sim = mpt->sim;
2469                 }
2470                 for (lun_id = 0; lun_id < MPT_MAX_LUNS; lun_id++) {
2471                         if (xpt_create_path(&tmppath, NULL, cam_sim_path(sim),
2472                             pqf->TargetID, lun_id) != CAM_REQ_CMP) {
2473                                 mpt_prt(mpt, "unable to create a path to send "
2474                                     "XPT_REL_SIMQ");
2475                                 break;
2476                         }
2477                         xpt_setup_ccb(&crs.ccb_h, tmppath, 5);
2478                         crs.ccb_h.func_code = XPT_REL_SIMQ;
2479                         crs.ccb_h.flags = CAM_DEV_QFREEZE;
2480                         crs.release_flags = RELSIM_ADJUST_OPENINGS;
2481                         crs.openings = pqf->CurrentDepth - 1;
2482                         xpt_action((union ccb *)&crs);
2483                         if (crs.ccb_h.status != CAM_REQ_CMP) {
2484                                 mpt_prt(mpt, "XPT_REL_SIMQ failed\n");
2485                         }
2486                         xpt_free_path(tmppath);
2487                 }
2488                 break;
2489         }
2490         case MPI_EVENT_IR_RESYNC_UPDATE:
2491                 mpt_prt(mpt, "IR resync update %d completed\n",
2492                     (data0 >> 16) & 0xff);
2493                 break;
2494         case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
2495         {
2496                 union ccb *ccb;
2497                 struct cam_sim *sim;
2498                 struct cam_path *tmppath;
2499                 PTR_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE psdsc;
2500
2501                 psdsc = (PTR_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE)msg->Data;
2502                 if (mpt->phydisk_sim && mpt_is_raid_member(mpt,
2503                     psdsc->TargetID) != 0)
2504                         sim = mpt->phydisk_sim;
2505                 else
2506                         sim = mpt->sim;
2507                 switch(psdsc->ReasonCode) {
2508                 case MPI_EVENT_SAS_DEV_STAT_RC_ADDED:
2509                         ccb = xpt_alloc_ccb_nowait();
2510                         if (ccb == NULL) {
2511                                 mpt_prt(mpt,
2512                                     "unable to alloc CCB for rescan\n");
2513                                 break;
2514                         }
2515                         if (xpt_create_path(&ccb->ccb_h.path, NULL,
2516                             cam_sim_path(sim), psdsc->TargetID,
2517                             CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2518                                 mpt_prt(mpt,
2519                                     "unable to create path for rescan\n");
2520                                 xpt_free_ccb(ccb);
2521                                 break;
2522                         }
2523                         xpt_rescan(ccb);
2524                         break;
2525                 case MPI_EVENT_SAS_DEV_STAT_RC_NOT_RESPONDING:
2526                         if (xpt_create_path(&tmppath, NULL, cam_sim_path(sim),
2527                             psdsc->TargetID, CAM_LUN_WILDCARD) !=
2528                             CAM_REQ_CMP) {
2529                                 mpt_prt(mpt,
2530                                     "unable to create path for async event");
2531                                 break;
2532                         }
2533                         xpt_async(AC_LOST_DEVICE, tmppath, NULL);
2534                         xpt_free_path(tmppath);
2535                         break;
2536                 case MPI_EVENT_SAS_DEV_STAT_RC_CMPL_INTERNAL_DEV_RESET:
2537                 case MPI_EVENT_SAS_DEV_STAT_RC_CMPL_TASK_ABORT_INTERNAL:
2538                 case MPI_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
2539                         break;
2540                 default:
2541                         mpt_lprt(mpt, MPT_PRT_WARN,
2542                             "SAS device status change: Bus: 0x%02x TargetID: "
2543                             "0x%02x ReasonCode: 0x%02x\n", psdsc->Bus,
2544                             psdsc->TargetID, psdsc->ReasonCode);
2545                         break;
2546                 }
2547                 break;
2548         }
2549         case MPI_EVENT_SAS_DISCOVERY_ERROR:
2550         {
2551                 PTR_EVENT_DATA_DISCOVERY_ERROR pde;
2552
2553                 pde = (PTR_EVENT_DATA_DISCOVERY_ERROR)msg->Data;
2554                 pde->DiscoveryStatus = le32toh(pde->DiscoveryStatus);
2555                 mpt_lprt(mpt, MPT_PRT_WARN,
2556                     "SAS discovery error: Port: 0x%02x Status: 0x%08x\n",
2557                     pde->Port, pde->DiscoveryStatus);
2558                 break;
2559         }
2560         case MPI_EVENT_EVENT_CHANGE:
2561         case MPI_EVENT_INTEGRATED_RAID:
2562         case MPI_EVENT_IR2:
2563         case MPI_EVENT_LOG_ENTRY_ADDED:
2564         case MPI_EVENT_SAS_DISCOVERY:
2565         case MPI_EVENT_SAS_PHY_LINK_STATUS:
2566         case MPI_EVENT_SAS_SES:
2567                 break;
2568         default:
2569                 mpt_lprt(mpt, MPT_PRT_WARN, "mpt_cam_event: 0x%x\n",
2570                     msg->Event & 0xFF);
2571                 return (0);
2572         }
2573         return (1);
2574 }
2575
2576 /*
2577  * Reply path for all SCSI I/O requests, called from our
2578  * interrupt handler by extracting our handler index from
2579  * the MsgContext field of the reply from the IOC.
2580  *
2581  * This routine is optimized for the common case of a
2582  * completion without error.  All exception handling is
2583  * offloaded to non-inlined helper routines to minimize
2584  * cache footprint.
2585  */
2586 static int
2587 mpt_scsi_reply_handler(struct mpt_softc *mpt, request_t *req,
2588     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2589 {
2590         MSG_SCSI_IO_REQUEST *scsi_req;
2591         union ccb *ccb;
2592
2593         if (req->state == REQ_STATE_FREE) {
2594                 mpt_prt(mpt, "mpt_scsi_reply_handler: req already free\n");
2595                 return (TRUE);
2596         }
2597
2598         scsi_req = (MSG_SCSI_IO_REQUEST *)req->req_vbuf;
2599         ccb = req->ccb;
2600         if (ccb == NULL) {
2601                 mpt_prt(mpt, "mpt_scsi_reply_handler: req %p:%u with no ccb\n",
2602                     req, req->serno);
2603                 return (TRUE);
2604         }
2605
2606         mpt_req_untimeout(req, mpt_timeout, ccb);
2607         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2608
2609         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2610                 bus_dmasync_op_t op;
2611
2612                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
2613                         op = BUS_DMASYNC_POSTREAD;
2614                 else
2615                         op = BUS_DMASYNC_POSTWRITE;
2616                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
2617                 bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2618         }
2619
2620         if (reply_frame == NULL) {
2621                 /*
2622                  * Context only reply, completion without error status.
2623                  */
2624                 ccb->csio.resid = 0;
2625                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
2626                 ccb->csio.scsi_status = SCSI_STATUS_OK;
2627         } else {
2628                 mpt_scsi_reply_frame_handler(mpt, req, reply_frame);
2629         }
2630
2631         if (mpt->outofbeer) {
2632                 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2633                 mpt->outofbeer = 0;
2634                 mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
2635         }
2636         if (scsi_req->CDB[0] == INQUIRY && (scsi_req->CDB[1] & SI_EVPD) == 0) {
2637                 struct scsi_inquiry_data *iq =
2638                     (struct scsi_inquiry_data *)ccb->csio.data_ptr;
2639                 if (scsi_req->Function ==
2640                     MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
2641                         /*
2642                          * Fake out the device type so that only the
2643                          * pass-thru device will attach.
2644                          */
2645                         iq->device &= ~0x1F;
2646                         iq->device |= T_NODEVICE;
2647                 }
2648         }
2649         if (mpt->verbose == MPT_PRT_DEBUG) {
2650                 mpt_prt(mpt, "mpt_scsi_reply_handler: %p:%u complete\n",
2651                     req, req->serno);
2652         }
2653         KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d", __LINE__));
2654         xpt_done(ccb);
2655         if ((req->state & REQ_STATE_TIMEDOUT) == 0) {
2656                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2657         } else {
2658                 mpt_prt(mpt, "completing timedout/aborted req %p:%u\n",
2659                     req, req->serno);
2660                 TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
2661         }
2662         KASSERT((req->state & REQ_STATE_NEED_WAKEUP) == 0,
2663             ("CCB req needed wakeup"));
2664 #ifdef  INVARIANTS
2665         mpt_req_not_spcl(mpt, req, "mpt_scsi_reply_handler", __LINE__);
2666 #endif
2667         mpt_free_request(mpt, req);
2668         return (TRUE);
2669 }
2670
2671 static int
2672 mpt_scsi_tmf_reply_handler(struct mpt_softc *mpt, request_t *req,
2673     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2674 {
2675         MSG_SCSI_TASK_MGMT_REPLY *tmf_reply;
2676
2677         KASSERT(req == mpt->tmf_req, ("TMF Reply not using mpt->tmf_req"));
2678 #ifdef  INVARIANTS
2679         mpt_req_not_spcl(mpt, req, "mpt_scsi_tmf_reply_handler", __LINE__);
2680 #endif
2681         tmf_reply = (MSG_SCSI_TASK_MGMT_REPLY *)reply_frame;
2682         /* Record IOC Status and Response Code of TMF for any waiters. */
2683         req->IOCStatus = le16toh(tmf_reply->IOCStatus);
2684         req->ResponseCode = tmf_reply->ResponseCode;
2685
2686         mpt_lprt(mpt, MPT_PRT_DEBUG, "TMF complete: req %p:%u status 0x%x\n",
2687             req, req->serno, le16toh(tmf_reply->IOCStatus));
2688         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2689         if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
2690                 req->state |= REQ_STATE_DONE;
2691                 wakeup(req);
2692         } else {
2693                 mpt->tmf_req->state = REQ_STATE_FREE;
2694         }
2695         return (TRUE);
2696 }
2697
2698 /*
2699  * XXX: Move to definitions file
2700  */
2701 #define ELS     0x22
2702 #define FC4LS   0x32
2703 #define ABTS    0x81
2704 #define BA_ACC  0x84
2705
2706 #define LS_RJT  0x01
2707 #define LS_ACC  0x02
2708 #define PLOGI   0x03
2709 #define LOGO    0x05
2710 #define SRR     0x14
2711 #define PRLI    0x20
2712 #define PRLO    0x21
2713 #define ADISC   0x52
2714 #define RSCN    0x61
2715
2716 static void
2717 mpt_fc_els_send_response(struct mpt_softc *mpt, request_t *req,
2718     PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp, U8 length)
2719 {
2720         uint32_t fl;
2721         MSG_LINK_SERVICE_RSP_REQUEST tmp;
2722         PTR_MSG_LINK_SERVICE_RSP_REQUEST rsp;
2723
2724         /*
2725          * We are going to reuse the ELS request to send this response back.
2726          */
2727         rsp = &tmp;
2728         memset(rsp, 0, sizeof(*rsp));
2729
2730 #ifdef  USE_IMMEDIATE_LINK_DATA
2731         /*
2732          * Apparently the IMMEDIATE stuff doesn't seem to work.
2733          */
2734         rsp->RspFlags = LINK_SERVICE_RSP_FLAGS_IMMEDIATE;
2735 #endif
2736         rsp->RspLength = length;
2737         rsp->Function = MPI_FUNCTION_FC_LINK_SRVC_RSP;
2738         rsp->MsgContext = htole32(req->index | fc_els_handler_id);
2739
2740         /*
2741          * Copy over information from the original reply frame to
2742          * it's correct place in the response.
2743          */
2744         memcpy((U8 *)rsp + 0x0c, (U8 *)rp + 0x1c, 24);
2745
2746         /*
2747          * And now copy back the temporary area to the original frame.
2748          */
2749         memcpy(req->req_vbuf, rsp, sizeof (MSG_LINK_SERVICE_RSP_REQUEST));
2750         rsp = req->req_vbuf;
2751
2752 #ifdef  USE_IMMEDIATE_LINK_DATA
2753         memcpy((U8 *)&rsp->SGL, &((U8 *)req->req_vbuf)[MPT_RQSL(mpt)], length);
2754 #else
2755 {
2756         PTR_SGE_SIMPLE32 se = (PTR_SGE_SIMPLE32) &rsp->SGL;
2757         bus_addr_t paddr = req->req_pbuf;
2758         paddr += MPT_RQSL(mpt);
2759
2760         fl =
2761                 MPI_SGE_FLAGS_HOST_TO_IOC       |
2762                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
2763                 MPI_SGE_FLAGS_LAST_ELEMENT      |
2764                 MPI_SGE_FLAGS_END_OF_LIST       |
2765                 MPI_SGE_FLAGS_END_OF_BUFFER;
2766         fl <<= MPI_SGE_FLAGS_SHIFT;
2767         fl |= (length);
2768         se->FlagsLength = htole32(fl);
2769         se->Address = htole32((uint32_t) paddr);
2770 }
2771 #endif
2772
2773         /*
2774          * Send it on...
2775          */
2776         mpt_send_cmd(mpt, req);
2777 }
2778
2779 static int
2780 mpt_fc_els_reply_handler(struct mpt_softc *mpt, request_t *req,
2781     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2782 {
2783         PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp =
2784             (PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY) reply_frame;
2785         U8 rctl;
2786         U8 type;
2787         U8 cmd;
2788         U16 status = le16toh(reply_frame->IOCStatus);
2789         U32 *elsbuf;
2790         int ioindex;
2791         int do_refresh = TRUE;
2792
2793 #ifdef  INVARIANTS
2794         KASSERT(mpt_req_on_free_list(mpt, req) == 0,
2795             ("fc_els_reply_handler: req %p:%u for function %x on freelist!",
2796             req, req->serno, rp->Function));
2797         if (rp->Function != MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2798                 mpt_req_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2799         } else {
2800                 mpt_req_not_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2801         }
2802 #endif
2803         mpt_lprt(mpt, MPT_PRT_DEBUG,
2804             "FC_ELS Complete: req %p:%u, reply %p function %x\n",
2805             req, req->serno, reply_frame, reply_frame->Function);
2806
2807         if  (status != MPI_IOCSTATUS_SUCCESS) {
2808                 mpt_prt(mpt, "ELS REPLY STATUS 0x%x for Function %x\n",
2809                     status, reply_frame->Function);
2810                 if (status == MPI_IOCSTATUS_INVALID_STATE) {
2811                         /*
2812                          * XXX: to get around shutdown issue
2813                          */
2814                         mpt->disabled = 1;
2815                         return (TRUE);
2816                 }
2817                 return (TRUE);
2818         }
2819
2820         /*
2821          * If the function of a link service response, we recycle the
2822          * response to be a refresh for a new link service request.
2823          *
2824          * The request pointer is bogus in this case and we have to fetch
2825          * it based upon the TransactionContext.
2826          */
2827         if (rp->Function == MPI_FUNCTION_FC_LINK_SRVC_RSP) {
2828                 /* Freddie Uncle Charlie Katie */
2829                 /* We don't get the IOINDEX as part of the Link Svc Rsp */
2830                 for (ioindex = 0; ioindex < mpt->els_cmds_allocated; ioindex++)
2831                         if (mpt->els_cmd_ptrs[ioindex] == req) {
2832                                 break;
2833                         }
2834
2835                 KASSERT(ioindex < mpt->els_cmds_allocated,
2836                     ("can't find my mommie!"));
2837
2838                 /* remove from active list as we're going to re-post it */
2839                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2840                 req->state &= ~REQ_STATE_QUEUED;
2841                 req->state |= REQ_STATE_DONE;
2842                 mpt_fc_post_els(mpt, req, ioindex);
2843                 return (TRUE);
2844         }
2845
2846         if (rp->Function == MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2847                 /* remove from active list as we're done */
2848                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2849                 req->state &= ~REQ_STATE_QUEUED;
2850                 req->state |= REQ_STATE_DONE;
2851                 if (req->state & REQ_STATE_TIMEDOUT) {
2852                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2853                             "Sync Primitive Send Completed After Timeout\n");
2854                         mpt_free_request(mpt, req);
2855                 } else if ((req->state & REQ_STATE_NEED_WAKEUP) == 0) {
2856                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2857                             "Async Primitive Send Complete\n");
2858                         mpt_free_request(mpt, req);
2859                 } else {
2860                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2861                             "Sync Primitive Send Complete- Waking Waiter\n");
2862                         wakeup(req);
2863                 }
2864                 return (TRUE);
2865         }
2866
2867         if (rp->Function != MPI_FUNCTION_FC_LINK_SRVC_BUF_POST) {
2868                 mpt_prt(mpt, "unexpected ELS_REPLY: Function 0x%x Flags %x "
2869                     "Length %d Message Flags %x\n", rp->Function, rp->Flags,
2870                     rp->MsgLength, rp->MsgFlags);
2871                 return (TRUE);
2872         }
2873
2874         if (rp->MsgLength <= 5) {
2875                 /*
2876                  * This is just a ack of an original ELS buffer post
2877                  */
2878                 mpt_lprt(mpt, MPT_PRT_DEBUG,
2879                     "RECV'd ACK of FC_ELS buf post %p:%u\n", req, req->serno);
2880                 return (TRUE);
2881         }
2882
2883
2884         rctl = (le32toh(rp->Rctl_Did) & MPI_FC_RCTL_MASK) >> MPI_FC_RCTL_SHIFT;
2885         type = (le32toh(rp->Type_Fctl) & MPI_FC_TYPE_MASK) >> MPI_FC_TYPE_SHIFT;
2886
2887         elsbuf = &((U32 *)req->req_vbuf)[MPT_RQSL(mpt)/sizeof (U32)];
2888         cmd = be32toh(elsbuf[0]) >> 24;
2889
2890         if (rp->Flags & MPI_LS_BUF_POST_REPLY_FLAG_NO_RSP_NEEDED) {
2891                 mpt_lprt(mpt, MPT_PRT_ALWAYS, "ELS_REPLY: response unneeded\n");
2892                 return (TRUE);
2893         }
2894
2895         ioindex = le32toh(rp->TransactionContext);
2896         req = mpt->els_cmd_ptrs[ioindex];
2897
2898         if (rctl == ELS && type == 1) {
2899                 switch (cmd) {
2900                 case PRLI:
2901                         /*
2902                          * Send back a PRLI ACC
2903                          */
2904                         mpt_prt(mpt, "PRLI from 0x%08x%08x\n",
2905                             le32toh(rp->Wwn.PortNameHigh),
2906                             le32toh(rp->Wwn.PortNameLow));
2907                         elsbuf[0] = htobe32(0x02100014);
2908                         elsbuf[1] |= htobe32(0x00000100);
2909                         elsbuf[4] = htobe32(0x00000002);
2910                         if (mpt->role & MPT_ROLE_TARGET)
2911                                 elsbuf[4] |= htobe32(0x00000010);
2912                         if (mpt->role & MPT_ROLE_INITIATOR)
2913                                 elsbuf[4] |= htobe32(0x00000020);
2914                         /* remove from active list as we're done */
2915                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2916                         req->state &= ~REQ_STATE_QUEUED;
2917                         req->state |= REQ_STATE_DONE;
2918                         mpt_fc_els_send_response(mpt, req, rp, 20);
2919                         do_refresh = FALSE;
2920                         break;
2921                 case PRLO:
2922                         memset(elsbuf, 0, 5 * (sizeof (U32)));
2923                         elsbuf[0] = htobe32(0x02100014);
2924                         elsbuf[1] = htobe32(0x08000100);
2925                         mpt_prt(mpt, "PRLO from 0x%08x%08x\n",
2926                             le32toh(rp->Wwn.PortNameHigh),
2927                             le32toh(rp->Wwn.PortNameLow));
2928                         /* remove from active list as we're done */
2929                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2930                         req->state &= ~REQ_STATE_QUEUED;
2931                         req->state |= REQ_STATE_DONE;
2932                         mpt_fc_els_send_response(mpt, req, rp, 20);
2933                         do_refresh = FALSE;
2934                         break;
2935                 default:
2936                         mpt_prt(mpt, "ELS TYPE 1 COMMAND: %x\n", cmd);
2937                         break;
2938                 }
2939         } else if (rctl == ABTS && type == 0) {
2940                 uint16_t rx_id = le16toh(rp->Rxid);
2941                 uint16_t ox_id = le16toh(rp->Oxid);
2942                 request_t *tgt_req = NULL;
2943
2944                 mpt_prt(mpt,
2945                     "ELS: ABTS OX_ID 0x%x RX_ID 0x%x from 0x%08x%08x\n",
2946                     ox_id, rx_id, le32toh(rp->Wwn.PortNameHigh),
2947                     le32toh(rp->Wwn.PortNameLow));
2948                 if (rx_id >= mpt->mpt_max_tgtcmds) {
2949                         mpt_prt(mpt, "Bad RX_ID 0x%x\n", rx_id);
2950                 } else if (mpt->tgt_cmd_ptrs == NULL) {
2951                         mpt_prt(mpt, "No TGT CMD PTRS\n");
2952                 } else {
2953                         tgt_req = mpt->tgt_cmd_ptrs[rx_id];
2954                 }
2955                 if (tgt_req) {
2956                         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, tgt_req);
2957                         union ccb *ccb;
2958                         uint32_t ct_id;
2959
2960                         /*
2961                          * Check to make sure we have the correct command
2962                          * The reply descriptor in the target state should
2963                          * should contain an IoIndex that should match the
2964                          * RX_ID.
2965                          *
2966                          * It'd be nice to have OX_ID to crosscheck with
2967                          * as well.
2968                          */
2969                         ct_id = GET_IO_INDEX(tgt->reply_desc);
2970
2971                         if (ct_id != rx_id) {
2972                                 mpt_lprt(mpt, MPT_PRT_ERROR, "ABORT Mismatch: "
2973                                     "RX_ID received=0x%x; RX_ID in cmd=0x%x\n",
2974                                     rx_id, ct_id);
2975                                 goto skip;
2976                         }
2977
2978                         ccb = tgt->ccb;
2979                         if (ccb) {
2980                                 mpt_prt(mpt,
2981                                     "CCB (%p): lun %u flags %x status %x\n",
2982                                     ccb, ccb->ccb_h.target_lun,
2983                                     ccb->ccb_h.flags, ccb->ccb_h.status);
2984                         }
2985                         mpt_prt(mpt, "target state 0x%x resid %u xfrd %u rpwrd "
2986                             "%x nxfers %x\n", tgt->state,
2987                             tgt->resid, tgt->bytes_xfered, tgt->reply_desc,
2988                             tgt->nxfers);
2989   skip:
2990                         if (mpt_abort_target_cmd(mpt, tgt_req)) {
2991                                 mpt_prt(mpt, "unable to start TargetAbort\n");
2992                         }
2993                 } else {
2994                         mpt_prt(mpt, "no back pointer for RX_ID 0x%x\n", rx_id);
2995                 }
2996                 memset(elsbuf, 0, 5 * (sizeof (U32)));
2997                 elsbuf[0] = htobe32(0);
2998                 elsbuf[1] = htobe32((ox_id << 16) | rx_id);
2999                 elsbuf[2] = htobe32(0x000ffff);
3000                 /*
3001                  * Dork with the reply frame so that the response to it
3002                  * will be correct.
3003                  */
3004                 rp->Rctl_Did += ((BA_ACC - ABTS) << MPI_FC_RCTL_SHIFT);
3005                 /* remove from active list as we're done */
3006                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3007                 req->state &= ~REQ_STATE_QUEUED;
3008                 req->state |= REQ_STATE_DONE;
3009                 mpt_fc_els_send_response(mpt, req, rp, 12);
3010                 do_refresh = FALSE;
3011         } else {
3012                 mpt_prt(mpt, "ELS: RCTL %x TYPE %x CMD %x\n", rctl, type, cmd);
3013         }
3014         if (do_refresh == TRUE) {
3015                 /* remove from active list as we're done */
3016                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3017                 req->state &= ~REQ_STATE_QUEUED;
3018                 req->state |= REQ_STATE_DONE;
3019                 mpt_fc_post_els(mpt, req, ioindex);
3020         }
3021         return (TRUE);
3022 }
3023
3024 /*
3025  * Clean up all SCSI Initiator personality state in response
3026  * to a controller reset.
3027  */
3028 static void
3029 mpt_cam_ioc_reset(struct mpt_softc *mpt, int type)
3030 {
3031
3032         /*
3033          * The pending list is already run down by
3034          * the generic handler.  Perform the same
3035          * operation on the timed out request list.
3036          */
3037         mpt_complete_request_chain(mpt, &mpt->request_timeout_list,
3038                                    MPI_IOCSTATUS_INVALID_STATE);
3039
3040         /*
3041          * XXX: We need to repost ELS and Target Command Buffers?
3042          */
3043
3044         /*
3045          * Inform the XPT that a bus reset has occurred.
3046          */
3047         xpt_async(AC_BUS_RESET, mpt->path, NULL);
3048 }
3049
3050 /*
3051  * Parse additional completion information in the reply
3052  * frame for SCSI I/O requests.
3053  */
3054 static int
3055 mpt_scsi_reply_frame_handler(struct mpt_softc *mpt, request_t *req,
3056                              MSG_DEFAULT_REPLY *reply_frame)
3057 {
3058         union ccb *ccb;
3059         MSG_SCSI_IO_REPLY *scsi_io_reply;
3060         u_int ioc_status;
3061         u_int sstate;
3062
3063         MPT_DUMP_REPLY_FRAME(mpt, reply_frame);
3064         KASSERT(reply_frame->Function == MPI_FUNCTION_SCSI_IO_REQUEST
3065              || reply_frame->Function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH,
3066                 ("MPT SCSI I/O Handler called with incorrect reply type"));
3067         KASSERT((reply_frame->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY) == 0,
3068                 ("MPT SCSI I/O Handler called with continuation reply"));
3069
3070         scsi_io_reply = (MSG_SCSI_IO_REPLY *)reply_frame;
3071         ioc_status = le16toh(scsi_io_reply->IOCStatus);
3072         ioc_status &= MPI_IOCSTATUS_MASK;
3073         sstate = scsi_io_reply->SCSIState;
3074
3075         ccb = req->ccb;
3076         ccb->csio.resid =
3077             ccb->csio.dxfer_len - le32toh(scsi_io_reply->TransferCount);
3078
3079         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_VALID) != 0
3080          && (ccb->ccb_h.flags & (CAM_SENSE_PHYS | CAM_SENSE_PTR)) == 0) {
3081                 uint32_t sense_returned;
3082
3083                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
3084
3085                 sense_returned = le32toh(scsi_io_reply->SenseCount);
3086                 if (sense_returned < ccb->csio.sense_len)
3087                         ccb->csio.sense_resid = ccb->csio.sense_len -
3088                                                 sense_returned;
3089                 else
3090                         ccb->csio.sense_resid = 0;
3091
3092                 bzero(&ccb->csio.sense_data, sizeof(ccb->csio.sense_data));
3093                 bcopy(req->sense_vbuf, &ccb->csio.sense_data,
3094                     min(ccb->csio.sense_len, sense_returned));
3095         }
3096
3097         if ((sstate & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) != 0) {
3098                 /*
3099                  * Tag messages rejected, but non-tagged retry
3100                  * was successful.
3101 XXXX
3102                 mpt_set_tags(mpt, devinfo, MPT_QUEUE_NONE);
3103                  */
3104         }
3105
3106         switch(ioc_status) {
3107         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3108                 /*
3109                  * XXX
3110                  * Linux driver indicates that a zero
3111                  * transfer length with this error code
3112                  * indicates a CRC error.
3113                  *
3114                  * No need to swap the bytes for checking
3115                  * against zero.
3116                  */
3117                 if (scsi_io_reply->TransferCount == 0) {
3118                         mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3119                         break;
3120                 }
3121                 /* FALLTHROUGH */
3122         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
3123         case MPI_IOCSTATUS_SUCCESS:
3124         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:
3125                 if ((sstate & MPI_SCSI_STATE_NO_SCSI_STATUS) != 0) {
3126                         /*
3127                          * Status was never returned for this transaction.
3128                          */
3129                         mpt_set_ccb_status(ccb, CAM_UNEXP_BUSFREE);
3130                 } else if (scsi_io_reply->SCSIStatus != SCSI_STATUS_OK) {
3131                         ccb->csio.scsi_status = scsi_io_reply->SCSIStatus;
3132                         mpt_set_ccb_status(ccb, CAM_SCSI_STATUS_ERROR);
3133                         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_FAILED) != 0)
3134                                 mpt_set_ccb_status(ccb, CAM_AUTOSENSE_FAIL);
3135                 } else if ((sstate & MPI_SCSI_STATE_RESPONSE_INFO_VALID) != 0) {
3136
3137                         /* XXX Handle SPI-Packet and FCP-2 response info. */
3138                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3139                 } else
3140                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3141                 break;
3142         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
3143                 mpt_set_ccb_status(ccb, CAM_DATA_RUN_ERR);
3144                 break;
3145         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
3146                 mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3147                 break;
3148         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3149                 /*
3150                  * Since selection timeouts and "device really not
3151                  * there" are grouped into this error code, report
3152                  * selection timeout.  Selection timeouts are
3153                  * typically retried before giving up on the device
3154                  * whereas "device not there" errors are considered
3155                  * unretryable.
3156                  */
3157                 mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3158                 break;
3159         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3160                 mpt_set_ccb_status(ccb, CAM_SEQUENCE_FAIL);
3161                 break;
3162         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
3163                 mpt_set_ccb_status(ccb, CAM_PATH_INVALID);
3164                 break;
3165         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
3166                 mpt_set_ccb_status(ccb, CAM_TID_INVALID);
3167                 break;
3168         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3169                 ccb->ccb_h.status = CAM_UA_TERMIO;
3170                 break;
3171         case MPI_IOCSTATUS_INVALID_STATE:
3172                 /*
3173                  * The IOC has been reset.  Emulate a bus reset.
3174                  */
3175                 /* FALLTHROUGH */
3176         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
3177                 ccb->ccb_h.status = CAM_SCSI_BUS_RESET;
3178                 break;
3179         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
3180         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
3181                 /*
3182                  * Don't clobber any timeout status that has
3183                  * already been set for this transaction.  We
3184                  * want the SCSI layer to be able to differentiate
3185                  * between the command we aborted due to timeout
3186                  * and any innocent bystanders.
3187                  */
3188                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG)
3189                         break;
3190                 mpt_set_ccb_status(ccb, CAM_REQ_TERMIO);
3191                 break;
3192
3193         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
3194                 mpt_set_ccb_status(ccb, CAM_RESRC_UNAVAIL);
3195                 break;
3196         case MPI_IOCSTATUS_BUSY:
3197                 mpt_set_ccb_status(ccb, CAM_BUSY);
3198                 break;
3199         case MPI_IOCSTATUS_INVALID_FUNCTION:
3200         case MPI_IOCSTATUS_INVALID_SGL:
3201         case MPI_IOCSTATUS_INTERNAL_ERROR:
3202         case MPI_IOCSTATUS_INVALID_FIELD:
3203         default:
3204                 /* XXX
3205                  * Some of the above may need to kick
3206                  * of a recovery action!!!!
3207                  */
3208                 ccb->ccb_h.status = CAM_UNREC_HBA_ERROR;
3209                 break;
3210         }
3211
3212         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3213                 mpt_freeze_ccb(ccb);
3214         }
3215
3216         return (TRUE);
3217 }
3218
3219 static void
3220 mpt_action(struct cam_sim *sim, union ccb *ccb)
3221 {
3222         struct mpt_softc *mpt;
3223         struct ccb_trans_settings *cts;
3224         target_id_t tgt;
3225         lun_id_t lun;
3226         int raid_passthru;
3227
3228         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("mpt_action\n"));
3229
3230         mpt = (struct mpt_softc *)cam_sim_softc(sim);
3231         raid_passthru = (sim == mpt->phydisk_sim);
3232         MPT_LOCK_ASSERT(mpt);
3233
3234         tgt = ccb->ccb_h.target_id;
3235         lun = ccb->ccb_h.target_lun;
3236         if (raid_passthru &&
3237             ccb->ccb_h.func_code != XPT_PATH_INQ &&
3238             ccb->ccb_h.func_code != XPT_RESET_BUS &&
3239             ccb->ccb_h.func_code != XPT_RESET_DEV) {
3240                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
3241                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3242                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
3243                         xpt_done(ccb);
3244                         return;
3245                 }
3246         }
3247         ccb->ccb_h.ccb_mpt_ptr = mpt;
3248
3249         switch (ccb->ccb_h.func_code) {
3250         case XPT_SCSI_IO:       /* Execute the requested I/O operation */
3251                 /*
3252                  * Do a couple of preliminary checks...
3253                  */
3254                 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
3255                         if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
3256                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3257                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3258                                 break;
3259                         }
3260                 }
3261                 /* Max supported CDB length is 16 bytes */
3262                 /* XXX Unless we implement the new 32byte message type */
3263                 if (ccb->csio.cdb_len >
3264                     sizeof (((PTR_MSG_SCSI_IO_REQUEST)0)->CDB)) {
3265                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3266                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3267                         break;
3268                 }
3269 #ifdef  MPT_TEST_MULTIPATH
3270                 if (mpt->failure_id == ccb->ccb_h.target_id) {
3271                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3272                         mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3273                         break;
3274                 }
3275 #endif
3276                 ccb->csio.scsi_status = SCSI_STATUS_OK;
3277                 mpt_start(sim, ccb);
3278                 return;
3279
3280         case XPT_RESET_BUS:
3281                 if (raid_passthru) {
3282                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3283                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3284                         break;
3285                 }
3286         case XPT_RESET_DEV:
3287                 if (ccb->ccb_h.func_code == XPT_RESET_BUS) {
3288                         if (bootverbose) {
3289                                 xpt_print(ccb->ccb_h.path, "reset bus\n");
3290                         }
3291                 } else {
3292                         xpt_print(ccb->ccb_h.path, "reset device\n");
3293                 }
3294                 (void) mpt_bus_reset(mpt, tgt, lun, FALSE);
3295
3296                 /*
3297                  * mpt_bus_reset is always successful in that it
3298                  * will fall back to a hard reset should a bus
3299                  * reset attempt fail.
3300                  */
3301                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3302                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3303                 break;
3304
3305         case XPT_ABORT:
3306         {
3307                 union ccb *accb = ccb->cab.abort_ccb;
3308                 switch (accb->ccb_h.func_code) {
3309                 case XPT_ACCEPT_TARGET_IO:
3310                 case XPT_IMMEDIATE_NOTIFY:
3311                         ccb->ccb_h.status = mpt_abort_target_ccb(mpt, ccb);
3312                         break;
3313                 case XPT_CONT_TARGET_IO:
3314                         mpt_prt(mpt, "cannot abort active CTIOs yet\n");
3315                         ccb->ccb_h.status = CAM_UA_ABORT;
3316                         break;
3317                 case XPT_SCSI_IO:
3318                         ccb->ccb_h.status = CAM_UA_ABORT;
3319                         break;
3320                 default:
3321                         ccb->ccb_h.status = CAM_REQ_INVALID;
3322                         break;
3323                 }
3324                 break;
3325         }
3326
3327 #ifdef  CAM_NEW_TRAN_CODE
3328 #define IS_CURRENT_SETTINGS(c)  ((c)->type == CTS_TYPE_CURRENT_SETTINGS)
3329 #else
3330 #define IS_CURRENT_SETTINGS(c)  ((c)->flags & CCB_TRANS_CURRENT_SETTINGS)
3331 #endif
3332 #define DP_DISC_ENABLE  0x1
3333 #define DP_DISC_DISABL  0x2
3334 #define DP_DISC         (DP_DISC_ENABLE|DP_DISC_DISABL)
3335
3336 #define DP_TQING_ENABLE 0x4
3337 #define DP_TQING_DISABL 0x8
3338 #define DP_TQING        (DP_TQING_ENABLE|DP_TQING_DISABL)
3339
3340 #define DP_WIDE         0x10
3341 #define DP_NARROW       0x20
3342 #define DP_WIDTH        (DP_WIDE|DP_NARROW)
3343
3344 #define DP_SYNC         0x40
3345
3346         case XPT_SET_TRAN_SETTINGS:     /* Nexus Settings */
3347         {
3348 #ifdef  CAM_NEW_TRAN_CODE
3349                 struct ccb_trans_settings_scsi *scsi;
3350                 struct ccb_trans_settings_spi *spi;
3351 #endif
3352                 uint8_t dval;
3353                 u_int period;
3354                 u_int offset;
3355                 int i, j;
3356
3357                 cts = &ccb->cts;
3358
3359                 if (mpt->is_fc || mpt->is_sas) {
3360                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3361                         break;
3362                 }
3363
3364 #ifdef  CAM_NEW_TRAN_CODE
3365                 scsi = &cts->proto_specific.scsi;
3366                 spi = &cts->xport_specific.spi;
3367
3368                 /*
3369                  * We can be called just to valid transport and proto versions
3370                  */
3371                 if (scsi->valid == 0 && spi->valid == 0) {
3372                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3373                         break;
3374                 }
3375 #endif
3376
3377                 /*
3378                  * Skip attempting settings on RAID volume disks.
3379                  * Other devices on the bus get the normal treatment.
3380                  */
3381                 if (mpt->phydisk_sim && raid_passthru == 0 &&
3382                     mpt_is_raid_volume(mpt, tgt) != 0) {
3383                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3384                             "no transfer settings for RAID vols\n");
3385                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3386                         break;
3387                 }
3388
3389                 i = mpt->mpt_port_page2.PortSettings &
3390                     MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
3391                 j = mpt->mpt_port_page2.PortFlags &
3392                     MPI_SCSIPORTPAGE2_PORT_FLAGS_DV_MASK;
3393                 if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS &&
3394                     j == MPI_SCSIPORTPAGE2_PORT_FLAGS_OFF_DV) {
3395                         mpt_lprt(mpt, MPT_PRT_ALWAYS,
3396                             "honoring BIOS transfer negotiations\n");
3397                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3398                         break;
3399                 }
3400
3401                 dval = 0;
3402                 period = 0;
3403                 offset = 0;
3404
3405 #ifndef CAM_NEW_TRAN_CODE
3406                 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
3407                         dval |= (cts->flags & CCB_TRANS_DISC_ENB) ?
3408                             DP_DISC_ENABLE : DP_DISC_DISABL;
3409                 }
3410
3411                 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
3412                         dval |= (cts->flags & CCB_TRANS_TAG_ENB) ?
3413                             DP_TQING_ENABLE : DP_TQING_DISABL;
3414                 }
3415
3416                 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
3417                         dval |= cts->bus_width ? DP_WIDE : DP_NARROW;
3418                 }
3419
3420                 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) &&
3421                     (cts->valid & CCB_TRANS_SYNC_OFFSET_VALID)) {
3422                         dval |= DP_SYNC;
3423                         period = cts->sync_period;
3424                         offset = cts->sync_offset;
3425                 }
3426 #else
3427                 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
3428                         dval |= ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) ?
3429                             DP_DISC_ENABLE : DP_DISC_DISABL;
3430                 }
3431
3432                 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
3433                         dval |= ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) ?
3434                             DP_TQING_ENABLE : DP_TQING_DISABL;
3435                 }
3436
3437                 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
3438                         dval |= (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT) ?
3439                             DP_WIDE : DP_NARROW;
3440                 }
3441
3442                 if (spi->valid & CTS_SPI_VALID_SYNC_OFFSET) {
3443                         dval |= DP_SYNC;
3444                         offset = spi->sync_offset;
3445                 } else {
3446                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3447                             &mpt->mpt_dev_page1[tgt];
3448                         offset = ptr->RequestedParameters;
3449                         offset &= MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3450                         offset >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3451                 }
3452                 if (spi->valid & CTS_SPI_VALID_SYNC_RATE) {
3453                         dval |= DP_SYNC;
3454                         period = spi->sync_period;
3455                 } else {
3456                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3457                             &mpt->mpt_dev_page1[tgt];
3458                         period = ptr->RequestedParameters;
3459                         period &= MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3460                         period >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3461                 }
3462 #endif
3463                 if (dval & DP_DISC_ENABLE) {
3464                         mpt->mpt_disc_enable |= (1 << tgt);
3465                 } else if (dval & DP_DISC_DISABL) {
3466                         mpt->mpt_disc_enable &= ~(1 << tgt);
3467                 }
3468                 if (dval & DP_TQING_ENABLE) {
3469                         mpt->mpt_tag_enable |= (1 << tgt);
3470                 } else if (dval & DP_TQING_DISABL) {
3471                         mpt->mpt_tag_enable &= ~(1 << tgt);
3472                 }
3473                 if (dval & DP_WIDTH) {
3474                         mpt_setwidth(mpt, tgt, 1);
3475                 }
3476                 if (dval & DP_SYNC) {
3477                         mpt_setsync(mpt, tgt, period, offset);
3478                 }
3479                 if (dval == 0) {
3480                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3481                         break;
3482                 }
3483                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3484                     "set [%d]: 0x%x period 0x%x offset %d\n",
3485                     tgt, dval, period, offset);
3486                 if (mpt_update_spi_config(mpt, tgt)) {
3487                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3488                 } else {
3489                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3490                 }
3491                 break;
3492         }
3493         case XPT_GET_TRAN_SETTINGS:
3494         {
3495 #ifdef  CAM_NEW_TRAN_CODE
3496                 struct ccb_trans_settings_scsi *scsi;
3497                 cts = &ccb->cts;
3498                 cts->protocol = PROTO_SCSI;
3499                 if (mpt->is_fc) {
3500                         struct ccb_trans_settings_fc *fc =
3501                             &cts->xport_specific.fc;
3502                         cts->protocol_version = SCSI_REV_SPC;
3503                         cts->transport = XPORT_FC;
3504                         cts->transport_version = 0;
3505                         fc->valid = CTS_FC_VALID_SPEED;
3506                         fc->bitrate = 100000;
3507                 } else if (mpt->is_sas) {
3508                         struct ccb_trans_settings_sas *sas =
3509                             &cts->xport_specific.sas;
3510                         cts->protocol_version = SCSI_REV_SPC2;
3511                         cts->transport = XPORT_SAS;
3512                         cts->transport_version = 0;
3513                         sas->valid = CTS_SAS_VALID_SPEED;
3514                         sas->bitrate = 300000;
3515                 } else {
3516                         cts->protocol_version = SCSI_REV_2;
3517                         cts->transport = XPORT_SPI;
3518                         cts->transport_version = 2;
3519                         if (mpt_get_spi_settings(mpt, cts) != 0) {
3520                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3521                                 break;
3522                         }
3523                 }
3524                 scsi = &cts->proto_specific.scsi;
3525                 scsi->valid = CTS_SCSI_VALID_TQ;
3526                 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3527 #else
3528                 cts = &ccb->cts;
3529                 if (mpt->is_fc) {
3530                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3531                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3532                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3533                 } else if (mpt->is_sas) {
3534                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3535                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3536                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3537                 } else if (mpt_get_spi_settings(mpt, cts) != 0) {
3538                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3539                         break;
3540                 }
3541 #endif
3542                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3543                 break;
3544         }
3545         case XPT_CALC_GEOMETRY:
3546         {
3547                 struct ccb_calc_geometry *ccg;
3548
3549                 ccg = &ccb->ccg;
3550                 if (ccg->block_size == 0) {
3551                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3552                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3553                         break;
3554                 }
3555                 cam_calc_geometry(ccg, /* extended */ 1);
3556                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d", __LINE__));
3557                 break;
3558         }
3559         case XPT_PATH_INQ:              /* Path routing inquiry */
3560         {
3561                 struct ccb_pathinq *cpi = &ccb->cpi;
3562
3563                 cpi->version_num = 1;
3564                 cpi->target_sprt = 0;
3565                 cpi->hba_eng_cnt = 0;
3566                 cpi->max_target = mpt->port_facts[0].MaxDevices - 1;
3567                 cpi->maxio = (mpt->max_cam_seg_cnt - 1) * PAGE_SIZE;
3568                 /*
3569                  * FC cards report MAX_DEVICES of 512, but
3570                  * the MSG_SCSI_IO_REQUEST target id field
3571                  * is only 8 bits. Until we fix the driver
3572                  * to support 'channels' for bus overflow,
3573                  * just limit it.
3574                  */
3575                 if (cpi->max_target > 255) {
3576                         cpi->max_target = 255;
3577                 }
3578
3579                 /*
3580                  * VMware ESX reports > 16 devices and then dies when we probe.
3581                  */
3582                 if (mpt->is_spi && cpi->max_target > 15) {
3583                         cpi->max_target = 15;
3584                 }
3585                 if (mpt->is_spi)
3586                         cpi->max_lun = 7;
3587                 else
3588                         cpi->max_lun = MPT_MAX_LUNS;
3589                 cpi->initiator_id = mpt->mpt_ini_id;
3590                 cpi->bus_id = cam_sim_bus(sim);
3591
3592                 /*
3593                  * The base speed is the speed of the underlying connection.
3594                  */
3595 #ifdef  CAM_NEW_TRAN_CODE
3596                 cpi->protocol = PROTO_SCSI;
3597                 if (mpt->is_fc) {
3598                         cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED;
3599                         cpi->base_transfer_speed = 100000;
3600                         cpi->hba_inquiry = PI_TAG_ABLE;
3601                         cpi->transport = XPORT_FC;
3602                         cpi->transport_version = 0;
3603                         cpi->protocol_version = SCSI_REV_SPC;
3604                 } else if (mpt->is_sas) {
3605                         cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED;
3606                         cpi->base_transfer_speed = 300000;
3607                         cpi->hba_inquiry = PI_TAG_ABLE;
3608                         cpi->transport = XPORT_SAS;
3609                         cpi->transport_version = 0;
3610                         cpi->protocol_version = SCSI_REV_SPC2;
3611                 } else {
3612                         cpi->hba_misc = PIM_SEQSCAN | PIM_UNMAPPED;
3613                         cpi->base_transfer_speed = 3300;
3614                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3615                         cpi->transport = XPORT_SPI;
3616                         cpi->transport_version = 2;
3617                         cpi->protocol_version = SCSI_REV_2;
3618                 }
3619 #else
3620                 if (mpt->is_fc) {
3621                         cpi->hba_misc = PIM_NOBUSRESET;
3622                         cpi->base_transfer_speed = 100000;
3623                         cpi->hba_inquiry = PI_TAG_ABLE;
3624                 } else if (mpt->is_sas) {
3625                         cpi->hba_misc = PIM_NOBUSRESET;
3626                         cpi->base_transfer_speed = 300000;
3627                         cpi->hba_inquiry = PI_TAG_ABLE;
3628                 } else {
3629                         cpi->hba_misc = PIM_SEQSCAN;
3630                         cpi->base_transfer_speed = 3300;
3631                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3632                 }
3633 #endif
3634
3635                 /*
3636                  * We give our fake RAID passhtru bus a width that is MaxVolumes
3637                  * wide and restrict it to one lun.
3638                  */
3639                 if (raid_passthru) {
3640                         cpi->max_target = mpt->ioc_page2->MaxPhysDisks - 1;
3641                         cpi->initiator_id = cpi->max_target + 1;
3642                         cpi->max_lun = 0;
3643                 }
3644
3645                 if ((mpt->role & MPT_ROLE_INITIATOR) == 0) {
3646                         cpi->hba_misc |= PIM_NOINITIATOR;
3647                 }
3648                 if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
3649                         cpi->target_sprt =
3650                             PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
3651                 } else {
3652                         cpi->target_sprt = 0;
3653                 }
3654                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3655                 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
3656                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3657                 cpi->unit_number = cam_sim_unit(sim);
3658                 cpi->ccb_h.status = CAM_REQ_CMP;
3659                 break;
3660         }
3661         case XPT_EN_LUN:                /* Enable LUN as a target */
3662         {
3663                 int result;
3664
3665                 if (ccb->cel.enable)
3666                         result = mpt_enable_lun(mpt,
3667                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3668                 else
3669                         result = mpt_disable_lun(mpt,
3670                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3671                 if (result == 0) {
3672                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3673                 } else {
3674                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3675                 }
3676                 break;
3677         }
3678         case XPT_NOTIFY_ACKNOWLEDGE:    /* recycle notify ack */
3679         case XPT_IMMEDIATE_NOTIFY:      /* Add Immediate Notify Resource */
3680         case XPT_ACCEPT_TARGET_IO:      /* Add Accept Target IO Resource */
3681         {
3682                 tgt_resource_t *trtp;
3683                 lun_id_t lun = ccb->ccb_h.target_lun;
3684                 ccb->ccb_h.sim_priv.entries[0].field = 0;
3685                 ccb->ccb_h.sim_priv.entries[1].ptr = mpt;
3686                 ccb->ccb_h.flags = 0;
3687
3688                 if (lun == CAM_LUN_WILDCARD) {
3689                         if (ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
3690                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3691                                 break;
3692                         }
3693                         trtp = &mpt->trt_wildcard;
3694                 } else if (lun >= MPT_MAX_LUNS) {
3695                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3696                         break;
3697                 } else {
3698                         trtp = &mpt->trt[lun];
3699                 }
3700                 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
3701                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3702                             "Put FREE ATIO %p lun %d\n", ccb, lun);
3703                         STAILQ_INSERT_TAIL(&trtp->atios, &ccb->ccb_h,
3704                             sim_links.stqe);
3705                 } else if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) {
3706                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3707                             "Put FREE INOT lun %d\n", lun);
3708                         STAILQ_INSERT_TAIL(&trtp->inots, &ccb->ccb_h,
3709                             sim_links.stqe);
3710                 } else {
3711                         mpt_lprt(mpt, MPT_PRT_ALWAYS, "Got Notify ACK\n");
3712                 }
3713                 mpt_set_ccb_status(ccb, CAM_REQ_INPROG);
3714                 return;
3715         }
3716         case XPT_CONT_TARGET_IO:
3717                 mpt_target_start_io(mpt, ccb);
3718                 return;
3719
3720         default:
3721                 ccb->ccb_h.status = CAM_REQ_INVALID;
3722                 break;
3723         }
3724         xpt_done(ccb);
3725 }
3726
3727 static int
3728 mpt_get_spi_settings(struct mpt_softc *mpt, struct ccb_trans_settings *cts)
3729 {
3730 #ifdef  CAM_NEW_TRAN_CODE
3731         struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3732         struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3733 #endif
3734         target_id_t tgt;
3735         uint32_t dval, pval, oval;
3736         int rv;
3737
3738         if (IS_CURRENT_SETTINGS(cts) == 0) {
3739                 tgt = cts->ccb_h.target_id;
3740         } else if (xpt_path_sim(cts->ccb_h.path) == mpt->phydisk_sim) {
3741                 if (mpt_map_physdisk(mpt, (union ccb *)cts, &tgt)) {
3742                         return (-1);
3743                 }
3744         } else {
3745                 tgt = cts->ccb_h.target_id;
3746         }
3747
3748         /*
3749          * We aren't looking at Port Page 2 BIOS settings here-
3750          * sometimes these have been known to be bogus XXX.
3751          *
3752          * For user settings, we pick the max from port page 0
3753          *
3754          * For current settings we read the current settings out from
3755          * device page 0 for that target.
3756          */
3757         if (IS_CURRENT_SETTINGS(cts)) {
3758                 CONFIG_PAGE_SCSI_DEVICE_0 tmp;
3759                 dval = 0;
3760
3761                 tmp = mpt->mpt_dev_page0[tgt];
3762                 rv = mpt_read_cur_cfg_page(mpt, tgt, &tmp.Header,
3763                     sizeof(tmp), FALSE, 5000);
3764                 if (rv) {
3765                         mpt_prt(mpt, "can't get tgt %d config page 0\n", tgt);
3766                         return (rv);
3767                 }
3768                 mpt2host_config_page_scsi_device_0(&tmp);
3769
3770                 mpt_lprt(mpt, MPT_PRT_DEBUG,
3771                     "mpt_get_spi_settings[%d]: current NP %x Info %x\n", tgt,
3772                     tmp.NegotiatedParameters, tmp.Information);
3773                 dval |= (tmp.NegotiatedParameters & MPI_SCSIDEVPAGE0_NP_WIDE) ?
3774                     DP_WIDE : DP_NARROW;
3775                 dval |= (mpt->mpt_disc_enable & (1 << tgt)) ?
3776                     DP_DISC_ENABLE : DP_DISC_DISABL;
3777                 dval |= (mpt->mpt_tag_enable & (1 << tgt)) ?
3778                     DP_TQING_ENABLE : DP_TQING_DISABL;
3779                 oval = tmp.NegotiatedParameters;
3780                 oval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK;
3781                 oval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
3782                 pval = tmp.NegotiatedParameters;
3783                 pval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK;
3784                 pval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
3785                 mpt->mpt_dev_page0[tgt] = tmp;
3786         } else {
3787                 dval = DP_WIDE|DP_DISC_ENABLE|DP_TQING_ENABLE|DP_SYNC;
3788                 oval = mpt->mpt_port_page0.Capabilities;
3789                 oval = MPI_SCSIPORTPAGE0_CAP_GET_MAX_SYNC_OFFSET(oval);
3790                 pval = mpt->mpt_port_page0.Capabilities;
3791                 pval = MPI_SCSIPORTPAGE0_CAP_GET_MIN_SYNC_PERIOD(pval);
3792         }
3793
3794 #ifndef CAM_NEW_TRAN_CODE
3795         cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
3796         cts->valid = 0;
3797         cts->sync_period = pval;
3798         cts->sync_offset = oval;
3799         cts->valid |= CCB_TRANS_SYNC_RATE_VALID;
3800         cts->valid |= CCB_TRANS_SYNC_OFFSET_VALID;
3801         cts->valid |= CCB_TRANS_BUS_WIDTH_VALID;
3802         if (dval & DP_WIDE) {
3803                 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3804         } else {
3805                 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3806         }
3807         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3808                 cts->valid |= CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3809                 if (dval & DP_DISC_ENABLE) {
3810                         cts->flags |= CCB_TRANS_DISC_ENB;
3811                 }
3812                 if (dval & DP_TQING_ENABLE) {
3813                         cts->flags |= CCB_TRANS_TAG_ENB;
3814                 }
3815         }
3816 #else
3817         spi->valid = 0;
3818         scsi->valid = 0;
3819         spi->flags = 0;
3820         scsi->flags = 0;
3821         spi->sync_offset = oval;
3822         spi->sync_period = pval;
3823         spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3824         spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3825         spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
3826         if (dval & DP_WIDE) {
3827                 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3828         } else {
3829                 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3830         }
3831         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3832                 scsi->valid = CTS_SCSI_VALID_TQ;
3833                 if (dval & DP_TQING_ENABLE) {
3834                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3835                 }
3836                 spi->valid |= CTS_SPI_VALID_DISC;
3837                 if (dval & DP_DISC_ENABLE) {
3838                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3839                 }
3840         }
3841 #endif
3842         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3843             "mpt_get_spi_settings[%d]: %s flags 0x%x per 0x%x off=%d\n", tgt,
3844             IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM ", dval, pval, oval);
3845         return (0);
3846 }
3847
3848 static void
3849 mpt_setwidth(struct mpt_softc *mpt, int tgt, int onoff)
3850 {
3851         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3852
3853         ptr = &mpt->mpt_dev_page1[tgt];
3854         if (onoff) {
3855                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_WIDE;
3856         } else {
3857                 ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_WIDE;
3858         }
3859 }
3860
3861 static void
3862 mpt_setsync(struct mpt_softc *mpt, int tgt, int period, int offset)
3863 {
3864         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3865
3866         ptr = &mpt->mpt_dev_page1[tgt];
3867         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3868         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3869         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_DT;
3870         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_QAS;
3871         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_IU;
3872         if (period == 0) {
3873                 return;
3874         }
3875         ptr->RequestedParameters |=
3876             period << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3877         ptr->RequestedParameters |=
3878             offset << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3879         if (period < 0xa) {
3880                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_DT;
3881         }
3882         if (period < 0x9) {
3883                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_QAS;
3884                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_IU;
3885         }
3886 }
3887
3888 static int
3889 mpt_update_spi_config(struct mpt_softc *mpt, int tgt)
3890 {
3891         CONFIG_PAGE_SCSI_DEVICE_1 tmp;
3892         int rv;
3893
3894         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3895             "mpt_update_spi_config[%d].page1: Requested Params 0x%08x\n",
3896             tgt, mpt->mpt_dev_page1[tgt].RequestedParameters);
3897         tmp = mpt->mpt_dev_page1[tgt];
3898         host2mpt_config_page_scsi_device_1(&tmp);
3899         rv = mpt_write_cur_cfg_page(mpt, tgt,
3900             &tmp.Header, sizeof(tmp), FALSE, 5000);
3901         if (rv) {
3902                 mpt_prt(mpt, "mpt_update_spi_config: write cur page failed\n");
3903                 return (-1);
3904         }
3905         return (0);
3906 }
3907
3908 /****************************** Timeout Recovery ******************************/
3909 static int
3910 mpt_spawn_recovery_thread(struct mpt_softc *mpt)
3911 {
3912         int error;
3913
3914         error = mpt_kthread_create(mpt_recovery_thread, mpt,
3915             &mpt->recovery_thread, /*flags*/0,
3916             /*altstack*/0, "mpt_recovery%d", mpt->unit);
3917         return (error);
3918 }
3919
3920 static void
3921 mpt_terminate_recovery_thread(struct mpt_softc *mpt)
3922 {
3923
3924         if (mpt->recovery_thread == NULL) {
3925                 return;
3926         }
3927         mpt->shutdwn_recovery = 1;
3928         wakeup(mpt);
3929         /*
3930          * Sleep on a slightly different location
3931          * for this interlock just for added safety.
3932          */
3933         mpt_sleep(mpt, &mpt->recovery_thread, PUSER, "thtrm", 0);
3934 }
3935
3936 static void
3937 mpt_recovery_thread(void *arg)
3938 {
3939         struct mpt_softc *mpt;
3940
3941         mpt = (struct mpt_softc *)arg;
3942         MPT_LOCK(mpt);
3943         for (;;) {
3944                 if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
3945                         if (mpt->shutdwn_recovery == 0) {
3946                                 mpt_sleep(mpt, mpt, PUSER, "idle", 0);
3947                         }
3948                 }
3949                 if (mpt->shutdwn_recovery != 0) {
3950                         break;
3951                 }
3952                 mpt_recover_commands(mpt);
3953         }
3954         mpt->recovery_thread = NULL;
3955         wakeup(&mpt->recovery_thread);
3956         MPT_UNLOCK(mpt);
3957         mpt_kthread_exit(0);
3958 }
3959
3960 static int
3961 mpt_scsi_send_tmf(struct mpt_softc *mpt, u_int type, u_int flags,
3962     u_int channel, u_int target, u_int lun, u_int abort_ctx, int sleep_ok)
3963 {
3964         MSG_SCSI_TASK_MGMT *tmf_req;
3965         int                 error;
3966
3967         /*
3968          * Wait for any current TMF request to complete.
3969          * We're only allowed to issue one TMF at a time.
3970          */
3971         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_FREE, REQ_STATE_FREE,
3972             sleep_ok, MPT_TMF_MAX_TIMEOUT);
3973         if (error != 0) {
3974                 mpt_reset(mpt, TRUE);
3975                 return (ETIMEDOUT);
3976         }
3977
3978         mpt_assign_serno(mpt, mpt->tmf_req);
3979         mpt->tmf_req->state = REQ_STATE_ALLOCATED|REQ_STATE_QUEUED;
3980
3981         tmf_req = (MSG_SCSI_TASK_MGMT *)mpt->tmf_req->req_vbuf;
3982         memset(tmf_req, 0, sizeof(*tmf_req));
3983         tmf_req->TargetID = target;
3984         tmf_req->Bus = channel;
3985         tmf_req->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
3986         tmf_req->TaskType = type;
3987         tmf_req->MsgFlags = flags;
3988         tmf_req->MsgContext =
3989             htole32(mpt->tmf_req->index | scsi_tmf_handler_id);
3990         if (lun > MPT_MAX_LUNS) {
3991                 tmf_req->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
3992                 tmf_req->LUN[1] = lun & 0xff;
3993         } else {
3994                 tmf_req->LUN[1] = lun;
3995         }
3996         tmf_req->TaskMsgContext = abort_ctx;
3997
3998         mpt_lprt(mpt, MPT_PRT_DEBUG,
3999             "Issuing TMF %p:%u with MsgContext of 0x%x\n", mpt->tmf_req,
4000             mpt->tmf_req->serno, tmf_req->MsgContext);
4001         if (mpt->verbose > MPT_PRT_DEBUG) {
4002                 mpt_print_request(tmf_req);
4003         }
4004
4005         KASSERT(mpt_req_on_pending_list(mpt, mpt->tmf_req) == 0,
4006             ("mpt_scsi_send_tmf: tmf_req already on pending list"));
4007         TAILQ_INSERT_HEAD(&mpt->request_pending_list, mpt->tmf_req, links);
4008         error = mpt_send_handshake_cmd(mpt, sizeof(*tmf_req), tmf_req);
4009         if (error != MPT_OK) {
4010                 TAILQ_REMOVE(&mpt->request_pending_list, mpt->tmf_req, links);
4011                 mpt->tmf_req->state = REQ_STATE_FREE;
4012                 mpt_reset(mpt, TRUE);
4013         }
4014         return (error);
4015 }
4016
4017 /*
4018  * When a command times out, it is placed on the requeust_timeout_list
4019  * and we wake our recovery thread.  The MPT-Fusion architecture supports
4020  * only a single TMF operation at a time, so we serially abort/bdr, etc,
4021  * the timedout transactions.  The next TMF is issued either by the
4022  * completion handler of the current TMF waking our recovery thread,
4023  * or the TMF timeout handler causing a hard reset sequence.
4024  */
4025 static void
4026 mpt_recover_commands(struct mpt_softc *mpt)
4027 {
4028         request_t          *req;
4029         union ccb          *ccb;
4030         int                 error;
4031
4032         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4033                 /*
4034                  * No work to do- leave.
4035                  */
4036                 mpt_prt(mpt, "mpt_recover_commands: no requests.\n");
4037                 return;
4038         }
4039
4040         /*
4041          * Flush any commands whose completion coincides with their timeout.
4042          */
4043         mpt_intr(mpt);
4044
4045         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4046                 /*
4047                  * The timedout commands have already
4048                  * completed.  This typically means
4049                  * that either the timeout value was on
4050                  * the hairy edge of what the device
4051                  * requires or - more likely - interrupts
4052                  * are not happening.
4053                  */
4054                 mpt_prt(mpt, "Timedout requests already complete. "
4055                     "Interrupts may not be functioning.\n");
4056                 mpt_enable_ints(mpt);
4057                 return;
4058         }
4059
4060         /*
4061          * We have no visibility into the current state of the
4062          * controller, so attempt to abort the commands in the
4063          * order they timed-out. For initiator commands, we
4064          * depend on the reply handler pulling requests off
4065          * the timeout list.
4066          */
4067         while ((req = TAILQ_FIRST(&mpt->request_timeout_list)) != NULL) {
4068                 uint16_t status;
4069                 uint8_t response;
4070                 MSG_REQUEST_HEADER *hdrp = req->req_vbuf;
4071
4072                 mpt_prt(mpt, "attempting to abort req %p:%u function %x\n",
4073                     req, req->serno, hdrp->Function);
4074                 ccb = req->ccb;
4075                 if (ccb == NULL) {
4076                         mpt_prt(mpt, "null ccb in timed out request. "
4077                             "Resetting Controller.\n");
4078                         mpt_reset(mpt, TRUE);
4079                         continue;
4080                 }
4081                 mpt_set_ccb_status(ccb, CAM_CMD_TIMEOUT);
4082
4083                 /*
4084                  * Check to see if this is not an initiator command and
4085                  * deal with it differently if it is.
4086                  */
4087                 switch (hdrp->Function) {
4088                 case MPI_FUNCTION_SCSI_IO_REQUEST:
4089                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
4090                         break;
4091                 default:
4092                         /*
4093                          * XXX: FIX ME: need to abort target assists...
4094                          */
4095                         mpt_prt(mpt, "just putting it back on the pend q\n");
4096                         TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
4097                         TAILQ_INSERT_HEAD(&mpt->request_pending_list, req,
4098                             links);
4099                         continue;
4100                 }
4101
4102                 error = mpt_scsi_send_tmf(mpt,
4103                     MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
4104                     0, 0, ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
4105                     htole32(req->index | scsi_io_handler_id), TRUE);
4106
4107                 if (error != 0) {
4108                         /*
4109                          * mpt_scsi_send_tmf hard resets on failure, so no
4110                          * need to do so here.  Our queue should be emptied
4111                          * by the hard reset.
4112                          */
4113                         continue;
4114                 }
4115
4116                 error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
4117                     REQ_STATE_DONE, TRUE, 500);
4118
4119                 status = le16toh(mpt->tmf_req->IOCStatus);
4120                 response = mpt->tmf_req->ResponseCode;
4121                 mpt->tmf_req->state = REQ_STATE_FREE;
4122
4123                 if (error != 0) {
4124                         /*
4125                          * If we've errored out,, reset the controller.
4126                          */
4127                         mpt_prt(mpt, "mpt_recover_commands: abort timed-out. "
4128                             "Resetting controller\n");
4129                         mpt_reset(mpt, TRUE);
4130                         continue;
4131                 }
4132
4133                 if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
4134                         mpt_prt(mpt, "mpt_recover_commands: IOC Status 0x%x. "
4135                             "Resetting controller.\n", status);
4136                         mpt_reset(mpt, TRUE);
4137                         continue;
4138                 }
4139
4140                 if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
4141                     response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
4142                         mpt_prt(mpt, "mpt_recover_commands: TMF Response 0x%x. "
4143                             "Resetting controller.\n", response);
4144                         mpt_reset(mpt, TRUE);
4145                         continue;
4146                 }
4147                 mpt_prt(mpt, "abort of req %p:%u completed\n", req, req->serno);
4148         }
4149 }
4150
4151 /************************ Target Mode Support ****************************/
4152 static void
4153 mpt_fc_post_els(struct mpt_softc *mpt, request_t *req, int ioindex)
4154 {
4155         MSG_LINK_SERVICE_BUFFER_POST_REQUEST *fc;
4156         PTR_SGE_TRANSACTION32 tep;
4157         PTR_SGE_SIMPLE32 se;
4158         bus_addr_t paddr;
4159         uint32_t fl;
4160
4161         paddr = req->req_pbuf;
4162         paddr += MPT_RQSL(mpt);
4163
4164         fc = req->req_vbuf;
4165         memset(fc, 0, MPT_REQUEST_AREA);
4166         fc->BufferCount = 1;
4167         fc->Function = MPI_FUNCTION_FC_LINK_SRVC_BUF_POST;
4168         fc->MsgContext = htole32(req->index | fc_els_handler_id);
4169
4170         /*
4171          * Okay, set up ELS buffer pointers. ELS buffer pointers
4172          * consist of a TE SGL element (with details length of zero)
4173          * followed by a SIMPLE SGL element which holds the address
4174          * of the buffer.
4175          */
4176
4177         tep = (PTR_SGE_TRANSACTION32) &fc->SGL;
4178
4179         tep->ContextSize = 4;
4180         tep->Flags = 0;
4181         tep->TransactionContext[0] = htole32(ioindex);
4182
4183         se = (PTR_SGE_SIMPLE32) &tep->TransactionDetails[0];
4184         fl =
4185                 MPI_SGE_FLAGS_HOST_TO_IOC       |
4186                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4187                 MPI_SGE_FLAGS_LAST_ELEMENT      |
4188                 MPI_SGE_FLAGS_END_OF_LIST       |
4189                 MPI_SGE_FLAGS_END_OF_BUFFER;
4190         fl <<= MPI_SGE_FLAGS_SHIFT;
4191         fl |= (MPT_NRFM(mpt) - MPT_RQSL(mpt));
4192         se->FlagsLength = htole32(fl);
4193         se->Address = htole32((uint32_t) paddr);
4194         mpt_lprt(mpt, MPT_PRT_DEBUG,
4195             "add ELS index %d ioindex %d for %p:%u\n",
4196             req->index, ioindex, req, req->serno);
4197         KASSERT(((req->state & REQ_STATE_LOCKED) != 0),
4198             ("mpt_fc_post_els: request not locked"));
4199         mpt_send_cmd(mpt, req);
4200 }
4201
4202 static void
4203 mpt_post_target_command(struct mpt_softc *mpt, request_t *req, int ioindex)
4204 {
4205         PTR_MSG_TARGET_CMD_BUFFER_POST_REQUEST fc;
4206         PTR_CMD_BUFFER_DESCRIPTOR cb;
4207         bus_addr_t paddr;
4208
4209         paddr = req->req_pbuf;
4210         paddr += MPT_RQSL(mpt);
4211         memset(req->req_vbuf, 0, MPT_REQUEST_AREA);
4212         MPT_TGT_STATE(mpt, req)->state = TGT_STATE_LOADING;
4213
4214         fc = req->req_vbuf;
4215         fc->BufferCount = 1;
4216         fc->Function = MPI_FUNCTION_TARGET_CMD_BUFFER_POST;
4217         fc->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4218
4219         cb = &fc->Buffer[0];
4220         cb->IoIndex = htole16(ioindex);
4221         cb->u.PhysicalAddress32 = htole32((U32) paddr);
4222
4223         mpt_check_doorbell(mpt);
4224         mpt_send_cmd(mpt, req);
4225 }
4226
4227 static int
4228 mpt_add_els_buffers(struct mpt_softc *mpt)
4229 {
4230         int i;
4231
4232         if (mpt->is_fc == 0) {
4233                 return (TRUE);
4234         }
4235
4236         if (mpt->els_cmds_allocated) {
4237                 return (TRUE);
4238         }
4239
4240         mpt->els_cmd_ptrs = malloc(MPT_MAX_ELS * sizeof (request_t *),
4241             M_DEVBUF, M_NOWAIT | M_ZERO);
4242
4243         if (mpt->els_cmd_ptrs == NULL) {
4244                 return (FALSE);
4245         }
4246
4247         /*
4248          * Feed the chip some ELS buffer resources
4249          */
4250         for (i = 0; i < MPT_MAX_ELS; i++) {
4251                 request_t *req = mpt_get_request(mpt, FALSE);
4252                 if (req == NULL) {
4253                         break;
4254                 }
4255                 req->state |= REQ_STATE_LOCKED;
4256                 mpt->els_cmd_ptrs[i] = req;
4257                 mpt_fc_post_els(mpt, req, i);
4258         }
4259
4260         if (i == 0) {
4261                 mpt_prt(mpt, "unable to add ELS buffer resources\n");
4262                 free(mpt->els_cmd_ptrs, M_DEVBUF);
4263                 mpt->els_cmd_ptrs = NULL;
4264                 return (FALSE);
4265         }
4266         if (i != MPT_MAX_ELS) {
4267                 mpt_lprt(mpt, MPT_PRT_INFO,
4268                     "only added %d of %d  ELS buffers\n", i, MPT_MAX_ELS);
4269         }
4270         mpt->els_cmds_allocated = i;
4271         return(TRUE);
4272 }
4273
4274 static int
4275 mpt_add_target_commands(struct mpt_softc *mpt)
4276 {
4277         int i, max;
4278
4279         if (mpt->tgt_cmd_ptrs) {
4280                 return (TRUE);
4281         }
4282
4283         max = MPT_MAX_REQUESTS(mpt) >> 1;
4284         if (max > mpt->mpt_max_tgtcmds) {
4285                 max = mpt->mpt_max_tgtcmds;
4286         }
4287         mpt->tgt_cmd_ptrs =
4288             malloc(max * sizeof (request_t *), M_DEVBUF, M_NOWAIT | M_ZERO);
4289         if (mpt->tgt_cmd_ptrs == NULL) {
4290                 mpt_prt(mpt,
4291                     "mpt_add_target_commands: could not allocate cmd ptrs\n");
4292                 return (FALSE);
4293         }
4294
4295         for (i = 0; i < max; i++) {
4296                 request_t *req;
4297
4298                 req = mpt_get_request(mpt, FALSE);
4299                 if (req == NULL) {
4300                         break;
4301                 }
4302                 req->state |= REQ_STATE_LOCKED;
4303                 mpt->tgt_cmd_ptrs[i] = req;
4304                 mpt_post_target_command(mpt, req, i);
4305         }
4306
4307
4308         if (i == 0) {
4309                 mpt_lprt(mpt, MPT_PRT_ERROR, "could not add any target bufs\n");
4310                 free(mpt->tgt_cmd_ptrs, M_DEVBUF);
4311                 mpt->tgt_cmd_ptrs = NULL;
4312                 return (FALSE);
4313         }
4314
4315         mpt->tgt_cmds_allocated = i;
4316
4317         if (i < max) {
4318                 mpt_lprt(mpt, MPT_PRT_INFO,
4319                     "added %d of %d target bufs\n", i, max);
4320         }
4321         return (i);
4322 }
4323
4324 static int
4325 mpt_enable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4326 {
4327
4328         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4329                 mpt->twildcard = 1;
4330         } else if (lun >= MPT_MAX_LUNS) {
4331                 return (EINVAL);
4332         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4333                 return (EINVAL);
4334         }
4335         if (mpt->tenabled == 0) {
4336                 if (mpt->is_fc) {
4337                         (void) mpt_fc_reset_link(mpt, 0);
4338                 }
4339                 mpt->tenabled = 1;
4340         }
4341         if (lun == CAM_LUN_WILDCARD) {
4342                 mpt->trt_wildcard.enabled = 1;
4343         } else {
4344                 mpt->trt[lun].enabled = 1;
4345         }
4346         return (0);
4347 }
4348
4349 static int
4350 mpt_disable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4351 {
4352         int i;
4353
4354         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4355                 mpt->twildcard = 0;
4356         } else if (lun >= MPT_MAX_LUNS) {
4357                 return (EINVAL);
4358         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4359                 return (EINVAL);
4360         }
4361         if (lun == CAM_LUN_WILDCARD) {
4362                 mpt->trt_wildcard.enabled = 0;
4363         } else {
4364                 mpt->trt[lun].enabled = 0;
4365         }
4366         for (i = 0; i < MPT_MAX_LUNS; i++) {
4367                 if (mpt->trt[lun].enabled) {
4368                         break;
4369                 }
4370         }
4371         if (i == MPT_MAX_LUNS && mpt->twildcard == 0) {
4372                 if (mpt->is_fc) {
4373                         (void) mpt_fc_reset_link(mpt, 0);
4374                 }
4375                 mpt->tenabled = 0;
4376         }
4377         return (0);
4378 }
4379
4380 /*
4381  * Called with MPT lock held
4382  */
4383 static void
4384 mpt_target_start_io(struct mpt_softc *mpt, union ccb *ccb)
4385 {
4386         struct ccb_scsiio *csio = &ccb->csio;
4387         request_t *cmd_req = MPT_TAG_2_REQ(mpt, csio->tag_id);
4388         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
4389
4390         switch (tgt->state) {
4391         case TGT_STATE_IN_CAM:
4392                 break;
4393         case TGT_STATE_MOVING_DATA:
4394                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4395                 xpt_freeze_simq(mpt->sim, 1);
4396                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4397                 tgt->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4398                 xpt_done(ccb);
4399                 return;
4400         default:
4401                 mpt_prt(mpt, "ccb %p flags 0x%x tag 0x%08x had bad request "
4402                     "starting I/O\n", ccb, csio->ccb_h.flags, csio->tag_id);
4403                 mpt_tgt_dump_req_state(mpt, cmd_req);
4404                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
4405                 xpt_done(ccb);
4406                 return;
4407         }
4408
4409         if (csio->dxfer_len) {
4410                 bus_dmamap_callback_t *cb;
4411                 PTR_MSG_TARGET_ASSIST_REQUEST ta;
4412                 request_t *req;
4413                 int error;
4414
4415                 KASSERT((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE,
4416                     ("dxfer_len %u but direction is NONE", csio->dxfer_len));
4417
4418                 if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4419                         if (mpt->outofbeer == 0) {
4420                                 mpt->outofbeer = 1;
4421                                 xpt_freeze_simq(mpt->sim, 1);
4422                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4423                         }
4424                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4425                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4426                         xpt_done(ccb);
4427                         return;
4428                 }
4429                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4430                 if (sizeof (bus_addr_t) > 4) {
4431                         cb = mpt_execute_req_a64;
4432                 } else {
4433                         cb = mpt_execute_req;
4434                 }
4435
4436                 req->ccb = ccb;
4437                 ccb->ccb_h.ccb_req_ptr = req;
4438
4439                 /*
4440                  * Record the currently active ccb and the
4441                  * request for it in our target state area.
4442                  */
4443                 tgt->ccb = ccb;
4444                 tgt->req = req;
4445
4446                 memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4447                 ta = req->req_vbuf;
4448
4449                 if (mpt->is_sas) {
4450                         PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4451                              cmd_req->req_vbuf;
4452                         ta->QueueTag = ssp->InitiatorTag;
4453                 } else if (mpt->is_spi) {
4454                         PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4455                              cmd_req->req_vbuf;
4456                         ta->QueueTag = sp->Tag;
4457                 }
4458                 ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4459                 ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4460                 ta->ReplyWord = htole32(tgt->reply_desc);
4461                 if (csio->ccb_h.target_lun > MPT_MAX_LUNS) {
4462                         ta->LUN[0] =
4463                             0x40 | ((csio->ccb_h.target_lun >> 8) & 0x3f);
4464                         ta->LUN[1] = csio->ccb_h.target_lun & 0xff;
4465                 } else {
4466                         ta->LUN[1] = csio->ccb_h.target_lun;
4467                 }
4468
4469                 ta->RelativeOffset = tgt->bytes_xfered;
4470                 ta->DataLength = ccb->csio.dxfer_len;
4471                 if (ta->DataLength > tgt->resid) {
4472                         ta->DataLength = tgt->resid;
4473                 }
4474
4475                 /*
4476                  * XXX Should be done after data transfer completes?
4477                  */
4478                 tgt->resid -= csio->dxfer_len;
4479                 tgt->bytes_xfered += csio->dxfer_len;
4480
4481                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
4482                         ta->TargetAssistFlags |=
4483                             TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4484                 }
4485
4486 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4487                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
4488                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
4489                         ta->TargetAssistFlags |=
4490                             TARGET_ASSIST_FLAGS_AUTO_STATUS;
4491                 }
4492 #endif
4493                 tgt->state = TGT_STATE_SETTING_UP_FOR_DATA;
4494
4495                 mpt_lprt(mpt, MPT_PRT_DEBUG,
4496                     "DATA_CCB %p tag %x %u bytes %u resid flg %x req %p:%u "
4497                     "nxtstate=%d\n", csio, csio->tag_id, csio->dxfer_len,
4498                     tgt->resid, ccb->ccb_h.flags, req, req->serno, tgt->state);
4499
4500                 error = bus_dmamap_load_ccb(mpt->buffer_dmat, req->dmap, ccb,
4501                     cb, req, 0);
4502                 if (error == EINPROGRESS) {
4503                         xpt_freeze_simq(mpt->sim, 1);
4504                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4505                 }
4506         } else {
4507                 uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
4508
4509                 /*
4510                  * XXX: I don't know why this seems to happen, but
4511                  * XXX: completing the CCB seems to make things happy.
4512                  * XXX: This seems to happen if the initiator requests
4513                  * XXX: enough data that we have to do multiple CTIOs.
4514                  */
4515                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
4516                         mpt_lprt(mpt, MPT_PRT_DEBUG,
4517                             "Meaningless STATUS CCB (%p): flags %x status %x "
4518                             "resid %d bytes_xfered %u\n", ccb, ccb->ccb_h.flags,
4519                             ccb->ccb_h.status, tgt->resid, tgt->bytes_xfered);
4520                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
4521                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4522                         xpt_done(ccb);
4523                         return;
4524                 }
4525                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
4526                         sp = sense;
4527                         memcpy(sp, &csio->sense_data,
4528                            min(csio->sense_len, MPT_SENSE_SIZE));
4529                 }
4530                 mpt_scsi_tgt_status(mpt, ccb, cmd_req, csio->scsi_status, sp);
4531         }
4532 }
4533
4534 static void
4535 mpt_scsi_tgt_local(struct mpt_softc *mpt, request_t *cmd_req,
4536     uint32_t lun, int send, uint8_t *data, size_t length)
4537 {
4538         mpt_tgt_state_t *tgt;
4539         PTR_MSG_TARGET_ASSIST_REQUEST ta;
4540         SGE_SIMPLE32 *se;
4541         uint32_t flags;
4542         uint8_t *dptr;
4543         bus_addr_t pptr;
4544         request_t *req;
4545
4546         /*
4547          * We enter with resid set to the data load for the command.
4548          */
4549         tgt = MPT_TGT_STATE(mpt, cmd_req);
4550         if (length == 0 || tgt->resid == 0) {
4551                 tgt->resid = 0;
4552                 mpt_scsi_tgt_status(mpt, NULL, cmd_req, 0, NULL);
4553                 return;
4554         }
4555
4556         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4557                 mpt_prt(mpt, "out of resources- dropping local response\n");
4558                 return;
4559         }
4560         tgt->is_local = 1;
4561
4562
4563         memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4564         ta = req->req_vbuf;
4565
4566         if (mpt->is_sas) {
4567                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp = cmd_req->req_vbuf;
4568                 ta->QueueTag = ssp->InitiatorTag;
4569         } else if (mpt->is_spi) {
4570                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp = cmd_req->req_vbuf;
4571                 ta->QueueTag = sp->Tag;
4572         }
4573         ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4574         ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4575         ta->ReplyWord = htole32(tgt->reply_desc);
4576         if (lun > MPT_MAX_LUNS) {
4577                 ta->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4578                 ta->LUN[1] = lun & 0xff;
4579         } else {
4580                 ta->LUN[1] = lun;
4581         }
4582         ta->RelativeOffset = 0;
4583         ta->DataLength = length;
4584
4585         dptr = req->req_vbuf;
4586         dptr += MPT_RQSL(mpt);
4587         pptr = req->req_pbuf;
4588         pptr += MPT_RQSL(mpt);
4589         memcpy(dptr, data, min(length, MPT_RQSL(mpt)));
4590
4591         se = (SGE_SIMPLE32 *) &ta->SGL[0];
4592         memset(se, 0,sizeof (*se));
4593
4594         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
4595         if (send) {
4596                 ta->TargetAssistFlags |= TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4597                 flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
4598         }
4599         se->Address = pptr;
4600         MPI_pSGE_SET_LENGTH(se, length);
4601         flags |= MPI_SGE_FLAGS_LAST_ELEMENT;
4602         flags |= MPI_SGE_FLAGS_END_OF_LIST | MPI_SGE_FLAGS_END_OF_BUFFER;
4603         MPI_pSGE_SET_FLAGS(se, flags);
4604
4605         tgt->ccb = NULL;
4606         tgt->req = req;
4607         tgt->resid -= length;
4608         tgt->bytes_xfered = length;
4609 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4610         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
4611 #else
4612         tgt->state = TGT_STATE_MOVING_DATA;
4613 #endif
4614         mpt_send_cmd(mpt, req);
4615 }
4616
4617 /*
4618  * Abort queued up CCBs
4619  */
4620 static cam_status
4621 mpt_abort_target_ccb(struct mpt_softc *mpt, union ccb *ccb)
4622 {
4623         struct mpt_hdr_stailq *lp;
4624         struct ccb_hdr *srch;
4625         int found = 0;
4626         union ccb *accb = ccb->cab.abort_ccb;
4627         tgt_resource_t *trtp;
4628
4629         mpt_lprt(mpt, MPT_PRT_DEBUG, "aborting ccb %p\n", accb);
4630
4631         if (ccb->ccb_h.target_lun == CAM_LUN_WILDCARD) {
4632                 trtp = &mpt->trt_wildcard;
4633         } else {
4634                 trtp = &mpt->trt[ccb->ccb_h.target_lun];
4635         }
4636
4637         if (accb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
4638                 lp = &trtp->atios;
4639         } else if (accb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) {
4640                 lp = &trtp->inots;
4641         } else {
4642                 return (CAM_REQ_INVALID);
4643         }
4644
4645         STAILQ_FOREACH(srch, lp, sim_links.stqe) {
4646                 if (srch == &accb->ccb_h) {
4647                         found = 1;
4648                         STAILQ_REMOVE(lp, srch, ccb_hdr, sim_links.stqe);
4649                         break;
4650                 }
4651         }
4652         if (found) {
4653                 accb->ccb_h.status = CAM_REQ_ABORTED;
4654                 xpt_done(accb);
4655                 return (CAM_REQ_CMP);
4656         }
4657         mpt_prt(mpt, "mpt_abort_tgt_ccb: CCB %p not found\n", ccb);
4658         return (CAM_PATH_INVALID);
4659 }
4660
4661 /*
4662  * Ask the MPT to abort the current target command
4663  */
4664 static int
4665 mpt_abort_target_cmd(struct mpt_softc *mpt, request_t *cmd_req)
4666 {
4667         int error;
4668         request_t *req;
4669         PTR_MSG_TARGET_MODE_ABORT abtp;
4670
4671         req = mpt_get_request(mpt, FALSE);
4672         if (req == NULL) {
4673                 return (-1);
4674         }
4675         abtp = req->req_vbuf;
4676         memset(abtp, 0, sizeof (*abtp));
4677
4678         abtp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4679         abtp->AbortType = TARGET_MODE_ABORT_TYPE_EXACT_IO;
4680         abtp->Function = MPI_FUNCTION_TARGET_MODE_ABORT;
4681         abtp->ReplyWord = htole32(MPT_TGT_STATE(mpt, cmd_req)->reply_desc);
4682         error = 0;
4683         if (mpt->is_fc || mpt->is_sas) {
4684                 mpt_send_cmd(mpt, req);
4685         } else {
4686                 error = mpt_send_handshake_cmd(mpt, sizeof(*req), req);
4687         }
4688         return (error);
4689 }
4690
4691 /*
4692  * WE_TRUST_AUTO_GOOD_STATUS- I've found that setting
4693  * TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS leads the
4694  * FC929 to set bogus FC_RSP fields (nonzero residuals
4695  * but w/o RESID fields set). This causes QLogic initiators
4696  * to think maybe that a frame was lost.
4697  *
4698  * WE_CAN_USE_AUTO_REPOST- we can't use AUTO_REPOST because
4699  * we use allocated requests to do TARGET_ASSIST and we
4700  * need to know when to release them.
4701  */
4702
4703 static void
4704 mpt_scsi_tgt_status(struct mpt_softc *mpt, union ccb *ccb, request_t *cmd_req,
4705     uint8_t status, uint8_t const *sense_data)
4706 {
4707         uint8_t *cmd_vbuf;
4708         mpt_tgt_state_t *tgt;
4709         PTR_MSG_TARGET_STATUS_SEND_REQUEST tp;
4710         request_t *req;
4711         bus_addr_t paddr;
4712         int resplen = 0;
4713         uint32_t fl;
4714
4715         cmd_vbuf = cmd_req->req_vbuf;
4716         cmd_vbuf += MPT_RQSL(mpt);
4717         tgt = MPT_TGT_STATE(mpt, cmd_req);
4718
4719         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4720                 if (mpt->outofbeer == 0) {
4721                         mpt->outofbeer = 1;
4722                         xpt_freeze_simq(mpt->sim, 1);
4723                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4724                 }
4725                 if (ccb) {
4726                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4727                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4728                         xpt_done(ccb);
4729                 } else {
4730                         mpt_prt(mpt,
4731                             "could not allocate status request- dropping\n");
4732                 }
4733                 return;
4734         }
4735         req->ccb = ccb;
4736         if (ccb) {
4737                 ccb->ccb_h.ccb_mpt_ptr = mpt;
4738                 ccb->ccb_h.ccb_req_ptr = req;
4739         }
4740
4741         /*
4742          * Record the currently active ccb, if any, and the
4743          * request for it in our target state area.
4744          */
4745         tgt->ccb = ccb;
4746         tgt->req = req;
4747         tgt->state = TGT_STATE_SENDING_STATUS;
4748
4749         tp = req->req_vbuf;
4750         paddr = req->req_pbuf;
4751         paddr += MPT_RQSL(mpt);
4752
4753         memset(tp, 0, sizeof (*tp));
4754         tp->Function = MPI_FUNCTION_TARGET_STATUS_SEND;
4755         if (mpt->is_fc) {
4756                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc =
4757                     (PTR_MPI_TARGET_FCP_CMD_BUFFER) cmd_vbuf;
4758                 uint8_t *sts_vbuf;
4759                 uint32_t *rsp;
4760
4761                 sts_vbuf = req->req_vbuf;
4762                 sts_vbuf += MPT_RQSL(mpt);
4763                 rsp = (uint32_t *) sts_vbuf;
4764                 memcpy(tp->LUN, fc->FcpLun, sizeof (tp->LUN));
4765
4766                 /*
4767                  * The MPI_TARGET_FCP_RSP_BUFFER define is unfortunate.
4768                  * It has to be big-endian in memory and is organized
4769                  * in 32 bit words, which are much easier to deal with
4770                  * as words which are swizzled as needed.
4771                  *
4772                  * All we're filling here is the FC_RSP payload.
4773                  * We may just have the chip synthesize it if
4774                  * we have no residual and an OK status.
4775                  *
4776                  */
4777                 memset(rsp, 0, sizeof (MPI_TARGET_FCP_RSP_BUFFER));
4778
4779                 rsp[2] = status;
4780                 if (tgt->resid) {
4781                         rsp[2] |= 0x800;        /* XXXX NEED MNEMONIC!!!! */
4782                         rsp[3] = htobe32(tgt->resid);
4783 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4784                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4785 #endif
4786                 }
4787                 if (status == SCSI_STATUS_CHECK_COND) {
4788                         int i;
4789
4790                         rsp[2] |= 0x200;        /* XXXX NEED MNEMONIC!!!! */
4791                         rsp[4] = htobe32(MPT_SENSE_SIZE);
4792                         if (sense_data) {
4793                                 memcpy(&rsp[8], sense_data, MPT_SENSE_SIZE);
4794                         } else {
4795                                 mpt_prt(mpt, "mpt_scsi_tgt_status: CHECK CONDI"
4796                                     "TION but no sense data?\n");
4797                                 memset(&rsp, 0, MPT_SENSE_SIZE);
4798                         }
4799                         for (i = 8; i < (8 + (MPT_SENSE_SIZE >> 2)); i++) {
4800                                 rsp[i] = htobe32(rsp[i]);
4801                         }
4802 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4803                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4804 #endif
4805                 }
4806 #ifndef WE_TRUST_AUTO_GOOD_STATUS
4807                 resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4808 #endif
4809                 rsp[2] = htobe32(rsp[2]);
4810         } else if (mpt->is_sas) {
4811                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4812                     (PTR_MPI_TARGET_SSP_CMD_BUFFER) cmd_vbuf;
4813                 memcpy(tp->LUN, ssp->LogicalUnitNumber, sizeof (tp->LUN));
4814         } else {
4815                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4816                     (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) cmd_vbuf;
4817                 tp->StatusCode = status;
4818                 tp->QueueTag = htole16(sp->Tag);
4819                 memcpy(tp->LUN, sp->LogicalUnitNumber, sizeof (tp->LUN));
4820         }
4821
4822         tp->ReplyWord = htole32(tgt->reply_desc);
4823         tp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4824
4825 #ifdef  WE_CAN_USE_AUTO_REPOST
4826         tp->MsgFlags = TARGET_STATUS_SEND_FLAGS_REPOST_CMD_BUFFER;
4827 #endif
4828         if (status == SCSI_STATUS_OK && resplen == 0) {
4829                 tp->MsgFlags |= TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS;
4830         } else {
4831                 tp->StatusDataSGE.u.Address32 = htole32((uint32_t) paddr);
4832                 fl =
4833                         MPI_SGE_FLAGS_HOST_TO_IOC       |
4834                         MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4835                         MPI_SGE_FLAGS_LAST_ELEMENT      |
4836                         MPI_SGE_FLAGS_END_OF_LIST       |
4837                         MPI_SGE_FLAGS_END_OF_BUFFER;
4838                 fl <<= MPI_SGE_FLAGS_SHIFT;
4839                 fl |= resplen;
4840                 tp->StatusDataSGE.FlagsLength = htole32(fl);
4841         }
4842
4843         mpt_lprt(mpt, MPT_PRT_DEBUG,
4844             "STATUS_CCB %p (wit%s sense) tag %x req %p:%u resid %u\n",
4845             ccb, sense_data?"h" : "hout", ccb? ccb->csio.tag_id : -1, req,
4846             req->serno, tgt->resid);
4847         if (ccb) {
4848                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4849                 mpt_req_timeout(req, 60 * hz, mpt_timeout, ccb);
4850         }
4851         mpt_send_cmd(mpt, req);
4852 }
4853
4854 static void
4855 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *mpt, request_t *req, mpt_task_mgmt_t fc,
4856     tgt_resource_t *trtp, int init_id)
4857 {
4858         struct ccb_immediate_notify *inot;
4859         mpt_tgt_state_t *tgt;
4860
4861         tgt = MPT_TGT_STATE(mpt, req);
4862         inot = (struct ccb_immediate_notify *) STAILQ_FIRST(&trtp->inots);
4863         if (inot == NULL) {
4864                 mpt_lprt(mpt, MPT_PRT_WARN, "no INOTSs- sending back BSY\n");
4865                 mpt_scsi_tgt_status(mpt, NULL, req, SCSI_STATUS_BUSY, NULL);
4866                 return;
4867         }
4868         STAILQ_REMOVE_HEAD(&trtp->inots, sim_links.stqe);
4869         mpt_lprt(mpt, MPT_PRT_DEBUG1,
4870             "Get FREE INOT %p lun %d\n", inot, inot->ccb_h.target_lun);
4871
4872         inot->initiator_id = init_id;   /* XXX */
4873         /*
4874          * This is a somewhat grotesque attempt to map from task management
4875          * to old style SCSI messages. God help us all.
4876          */
4877         switch (fc) {
4878         case MPT_ABORT_TASK_SET:
4879                 inot->arg = MSG_ABORT_TAG;
4880                 break;
4881         case MPT_CLEAR_TASK_SET:
4882                 inot->arg = MSG_CLEAR_TASK_SET;
4883                 break;
4884         case MPT_TARGET_RESET:
4885                 inot->arg = MSG_TARGET_RESET;
4886                 break;
4887         case MPT_CLEAR_ACA:
4888                 inot->arg = MSG_CLEAR_ACA;
4889                 break;
4890         case MPT_TERMINATE_TASK:
4891                 inot->arg = MSG_ABORT_TAG;
4892                 break;
4893         default:
4894                 inot->arg = MSG_NOOP;
4895                 break;
4896         }
4897         /*
4898          * XXX KDM we need the sequence/tag number for the target of the
4899          * task management operation, especially if it is an abort.
4900          */
4901         tgt->ccb = (union ccb *) inot;
4902         inot->ccb_h.status = CAM_MESSAGE_RECV|CAM_DEV_QFRZN;
4903         xpt_done((union ccb *)inot);
4904 }
4905
4906 static void
4907 mpt_scsi_tgt_atio(struct mpt_softc *mpt, request_t *req, uint32_t reply_desc)
4908 {
4909         static uint8_t null_iqd[SHORT_INQUIRY_LENGTH] = {
4910             0x7f, 0x00, 0x02, 0x02, 0x20, 0x00, 0x00, 0x32,
4911              'F',  'R',  'E',  'E',  'B',  'S',  'D',  ' ',
4912              'L',  'S',  'I',  '-',  'L',  'O',  'G',  'I',
4913              'C',  ' ',  'N',  'U',  'L',  'D',  'E',  'V',
4914              '0',  '0',  '0',  '1'
4915         };
4916         struct ccb_accept_tio *atiop;
4917         lun_id_t lun;
4918         int tag_action = 0;
4919         mpt_tgt_state_t *tgt;
4920         tgt_resource_t *trtp = NULL;
4921         U8 *lunptr;
4922         U8 *vbuf;
4923         U16 itag;
4924         U16 ioindex;
4925         mpt_task_mgmt_t fct = MPT_NIL_TMT_VALUE;
4926         uint8_t *cdbp;
4927
4928         /*
4929          * Stash info for the current command where we can get at it later.
4930          */
4931         vbuf = req->req_vbuf;
4932         vbuf += MPT_RQSL(mpt);
4933
4934         /*
4935          * Get our state pointer set up.
4936          */
4937         tgt = MPT_TGT_STATE(mpt, req);
4938         if (tgt->state != TGT_STATE_LOADED) {
4939                 mpt_tgt_dump_req_state(mpt, req);
4940                 panic("bad target state in mpt_scsi_tgt_atio");
4941         }
4942         memset(tgt, 0, sizeof (mpt_tgt_state_t));
4943         tgt->state = TGT_STATE_IN_CAM;
4944         tgt->reply_desc = reply_desc;
4945         ioindex = GET_IO_INDEX(reply_desc);
4946         if (mpt->verbose >= MPT_PRT_DEBUG) {
4947                 mpt_dump_data(mpt, "mpt_scsi_tgt_atio response", vbuf,
4948                     max(sizeof (MPI_TARGET_FCP_CMD_BUFFER),
4949                     max(sizeof (MPI_TARGET_SSP_CMD_BUFFER),
4950                     sizeof (MPI_TARGET_SCSI_SPI_CMD_BUFFER))));
4951         }
4952         if (mpt->is_fc) {
4953                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc;
4954                 fc = (PTR_MPI_TARGET_FCP_CMD_BUFFER) vbuf;
4955                 if (fc->FcpCntl[2]) {
4956                         /*
4957                          * Task Management Request
4958                          */
4959                         switch (fc->FcpCntl[2]) {
4960                         case 0x2:
4961                                 fct = MPT_ABORT_TASK_SET;
4962                                 break;
4963                         case 0x4:
4964                                 fct = MPT_CLEAR_TASK_SET;
4965                                 break;
4966                         case 0x20:
4967                                 fct = MPT_TARGET_RESET;
4968                                 break;
4969                         case 0x40:
4970                                 fct = MPT_CLEAR_ACA;
4971                                 break;
4972                         case 0x80:
4973                                 fct = MPT_TERMINATE_TASK;
4974                                 break;
4975                         default:
4976                                 mpt_prt(mpt, "CORRUPTED TASK MGMT BITS: 0x%x\n",
4977                                     fc->FcpCntl[2]);
4978                                 mpt_scsi_tgt_status(mpt, 0, req,
4979                                     SCSI_STATUS_OK, 0);
4980                                 return;
4981                         }
4982                 } else {
4983                         switch (fc->FcpCntl[1]) {
4984                         case 0:
4985                                 tag_action = MSG_SIMPLE_Q_TAG;
4986                                 break;
4987                         case 1:
4988                                 tag_action = MSG_HEAD_OF_Q_TAG;
4989                                 break;
4990                         case 2:
4991                                 tag_action = MSG_ORDERED_Q_TAG;
4992                                 break;
4993                         default:
4994                                 /*
4995                                  * Bah. Ignore Untagged Queing and ACA
4996                                  */
4997                                 tag_action = MSG_SIMPLE_Q_TAG;
4998                                 break;
4999                         }
5000                 }
5001                 tgt->resid = be32toh(fc->FcpDl);
5002                 cdbp = fc->FcpCdb;
5003                 lunptr = fc->FcpLun;
5004                 itag = be16toh(fc->OptionalOxid);
5005         } else if (mpt->is_sas) {
5006                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp;
5007                 ssp = (PTR_MPI_TARGET_SSP_CMD_BUFFER) vbuf;
5008                 cdbp = ssp->CDB;
5009                 lunptr = ssp->LogicalUnitNumber;
5010                 itag = ssp->InitiatorTag;
5011         } else {
5012                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp;
5013                 sp = (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) vbuf;
5014                 cdbp = sp->CDB;
5015                 lunptr = sp->LogicalUnitNumber;
5016                 itag = sp->Tag;
5017         }
5018
5019         /*
5020          * Generate a simple lun
5021          */
5022         switch (lunptr[0] & 0xc0) {
5023         case 0x40:
5024                 lun = ((lunptr[0] & 0x3f) << 8) | lunptr[1];
5025                 break;
5026         case 0:
5027                 lun = lunptr[1];
5028                 break;
5029         default:
5030                 mpt_lprt(mpt, MPT_PRT_ERROR, "cannot handle this type lun\n");
5031                 lun = 0xffff;
5032                 break;
5033         }
5034
5035         /*
5036          * Deal with non-enabled or bad luns here.
5037          */
5038         if (lun >= MPT_MAX_LUNS || mpt->tenabled == 0 ||
5039             mpt->trt[lun].enabled == 0) {
5040                 if (mpt->twildcard) {
5041                         trtp = &mpt->trt_wildcard;
5042                 } else if (fct == MPT_NIL_TMT_VALUE) {
5043                         /*
5044                          * In this case, we haven't got an upstream listener
5045                          * for either a specific lun or wildcard luns. We
5046                          * have to make some sensible response. For regular
5047                          * inquiry, just return some NOT HERE inquiry data.
5048                          * For VPD inquiry, report illegal field in cdb.
5049                          * For REQUEST SENSE, just return NO SENSE data.
5050                          * REPORT LUNS gets illegal command.
5051                          * All other commands get 'no such device'.
5052                          */
5053                         uint8_t *sp, cond, buf[MPT_SENSE_SIZE];
5054                         size_t len;
5055
5056                         memset(buf, 0, MPT_SENSE_SIZE);
5057                         cond = SCSI_STATUS_CHECK_COND;
5058                         buf[0] = 0xf0;
5059                         buf[2] = 0x5;
5060                         buf[7] = 0x8;
5061                         sp = buf;
5062                         tgt->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5063
5064                         switch (cdbp[0]) {
5065                         case INQUIRY:
5066                         {
5067                                 if (cdbp[1] != 0) {
5068                                         buf[12] = 0x26;
5069                                         buf[13] = 0x01;
5070                                         break;
5071                                 }
5072                                 len = min(tgt->resid, cdbp[4]);
5073                                 len = min(len, sizeof (null_iqd));
5074                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5075                                     "local inquiry %ld bytes\n", (long) len);
5076                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5077                                     null_iqd, len);
5078                                 return;
5079                         }
5080                         case REQUEST_SENSE:
5081                         {
5082                                 buf[2] = 0x0;
5083                                 len = min(tgt->resid, cdbp[4]);
5084                                 len = min(len, sizeof (buf));
5085                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5086                                     "local reqsense %ld bytes\n", (long) len);
5087                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5088                                     buf, len);
5089                                 return;
5090                         }
5091                         case REPORT_LUNS:
5092                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "REPORT LUNS\n");
5093                                 buf[12] = 0x26;
5094                                 return;
5095                         default:
5096                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5097                                     "CMD 0x%x to unmanaged lun %u\n",
5098                                     cdbp[0], lun);
5099                                 buf[12] = 0x25;
5100                                 break;
5101                         }
5102                         mpt_scsi_tgt_status(mpt, NULL, req, cond, sp);
5103                         return;
5104                 }
5105                 /* otherwise, leave trtp NULL */
5106         } else {
5107                 trtp = &mpt->trt[lun];
5108         }
5109
5110         /*
5111          * Deal with any task management
5112          */
5113         if (fct != MPT_NIL_TMT_VALUE) {
5114                 if (trtp == NULL) {
5115                         mpt_prt(mpt, "task mgmt function %x but no listener\n",
5116                             fct);
5117                         mpt_scsi_tgt_status(mpt, 0, req,
5118                             SCSI_STATUS_OK, 0);
5119                 } else {
5120                         mpt_scsi_tgt_tsk_mgmt(mpt, req, fct, trtp,
5121                             GET_INITIATOR_INDEX(reply_desc));
5122                 }
5123                 return;
5124         }
5125
5126
5127         atiop = (struct ccb_accept_tio *) STAILQ_FIRST(&trtp->atios);
5128         if (atiop == NULL) {
5129                 mpt_lprt(mpt, MPT_PRT_WARN,
5130                     "no ATIOs for lun %u- sending back %s\n", lun,
5131                     mpt->tenabled? "QUEUE FULL" : "BUSY");
5132                 mpt_scsi_tgt_status(mpt, NULL, req,
5133                     mpt->tenabled? SCSI_STATUS_QUEUE_FULL : SCSI_STATUS_BUSY,
5134                     NULL);
5135                 return;
5136         }
5137         STAILQ_REMOVE_HEAD(&trtp->atios, sim_links.stqe);
5138         mpt_lprt(mpt, MPT_PRT_DEBUG1,
5139             "Get FREE ATIO %p lun %d\n", atiop, atiop->ccb_h.target_lun);
5140         atiop->ccb_h.ccb_mpt_ptr = mpt;
5141         atiop->ccb_h.status = CAM_CDB_RECVD;
5142         atiop->ccb_h.target_lun = lun;
5143         atiop->sense_len = 0;
5144         atiop->init_id = GET_INITIATOR_INDEX(reply_desc);
5145         atiop->cdb_len = mpt_cdblen(cdbp[0], 16);
5146         memcpy(atiop->cdb_io.cdb_bytes, cdbp, atiop->cdb_len);
5147
5148         /*
5149          * The tag we construct here allows us to find the
5150          * original request that the command came in with.
5151          *
5152          * This way we don't have to depend on anything but the
5153          * tag to find things when CCBs show back up from CAM.
5154          */
5155         atiop->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5156         tgt->tag_id = atiop->tag_id;
5157         if (tag_action) {
5158                 atiop->tag_action = tag_action;
5159                 atiop->ccb_h.flags = CAM_TAG_ACTION_VALID;
5160         }
5161         if (mpt->verbose >= MPT_PRT_DEBUG) {
5162                 int i;
5163                 mpt_prt(mpt, "START_CCB %p for lun %u CDB=<", atiop,
5164                     atiop->ccb_h.target_lun);
5165                 for (i = 0; i < atiop->cdb_len; i++) {
5166                         mpt_prtc(mpt, "%02x%c", cdbp[i] & 0xff,
5167                             (i == (atiop->cdb_len - 1))? '>' : ' ');
5168                 }
5169                 mpt_prtc(mpt, " itag %x tag %x rdesc %x dl=%u\n",
5170                     itag, atiop->tag_id, tgt->reply_desc, tgt->resid);
5171         }
5172
5173         xpt_done((union ccb *)atiop);
5174 }
5175
5176 static void
5177 mpt_tgt_dump_tgt_state(struct mpt_softc *mpt, request_t *req)
5178 {
5179         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5180
5181         mpt_prt(mpt, "req %p:%u tgt:rdesc 0x%x resid %u xfrd %u ccb %p treq %p "
5182             "nx %d tag 0x%08x state=%d\n", req, req->serno, tgt->reply_desc,
5183             tgt->resid, tgt->bytes_xfered, tgt->ccb, tgt->req, tgt->nxfers,
5184             tgt->tag_id, tgt->state);
5185 }
5186
5187 static void
5188 mpt_tgt_dump_req_state(struct mpt_softc *mpt, request_t *req)
5189 {
5190
5191         mpt_prt(mpt, "req %p:%u index %u (%x) state %x\n", req, req->serno,
5192             req->index, req->index, req->state);
5193         mpt_tgt_dump_tgt_state(mpt, req);
5194 }
5195
5196 static int
5197 mpt_scsi_tgt_reply_handler(struct mpt_softc *mpt, request_t *req,
5198     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
5199 {
5200         int dbg;
5201         union ccb *ccb;
5202         U16 status;
5203
5204         if (reply_frame == NULL) {
5205                 /*
5206                  * Figure out what the state of the command is.
5207                  */
5208                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5209
5210 #ifdef  INVARIANTS
5211                 mpt_req_spcl(mpt, req, "turbo scsi_tgt_reply", __LINE__);
5212                 if (tgt->req) {
5213                         mpt_req_not_spcl(mpt, tgt->req,
5214                             "turbo scsi_tgt_reply associated req", __LINE__);
5215                 }
5216 #endif
5217                 switch(tgt->state) {
5218                 case TGT_STATE_LOADED:
5219                         /*
5220                          * This is a new command starting.
5221                          */
5222                         mpt_scsi_tgt_atio(mpt, req, reply_desc);
5223                         break;
5224                 case TGT_STATE_MOVING_DATA:
5225                 {
5226                         uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
5227
5228                         ccb = tgt->ccb;
5229                         if (tgt->req == NULL) {
5230                                 panic("mpt: turbo target reply with null "
5231                                     "associated request moving data");
5232                                 /* NOTREACHED */
5233                         }
5234                         if (ccb == NULL) {
5235                                 if (tgt->is_local == 0) {
5236                                         panic("mpt: turbo target reply with "
5237                                             "null associated ccb moving data");
5238                                         /* NOTREACHED */
5239                                 }
5240                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5241                                     "TARGET_ASSIST local done\n");
5242                                 TAILQ_REMOVE(&mpt->request_pending_list,
5243                                     tgt->req, links);
5244                                 mpt_free_request(mpt, tgt->req);
5245                                 tgt->req = NULL;
5246                                 mpt_scsi_tgt_status(mpt, NULL, req,
5247                                     0, NULL);
5248                                 return (TRUE);
5249                         }
5250                         tgt->ccb = NULL;
5251                         tgt->nxfers++;
5252                         mpt_req_untimeout(req, mpt_timeout, ccb);
5253                         mpt_lprt(mpt, MPT_PRT_DEBUG,
5254                             "TARGET_ASSIST %p (req %p:%u) done tag 0x%x\n",
5255                             ccb, tgt->req, tgt->req->serno, ccb->csio.tag_id);
5256                         /*
5257                          * Free the Target Assist Request
5258                          */
5259                         KASSERT(tgt->req->ccb == ccb,
5260                             ("tgt->req %p:%u tgt->req->ccb %p", tgt->req,
5261                             tgt->req->serno, tgt->req->ccb));
5262                         TAILQ_REMOVE(&mpt->request_pending_list,
5263                             tgt->req, links);
5264                         mpt_free_request(mpt, tgt->req);
5265                         tgt->req = NULL;
5266
5267                         /*
5268                          * Do we need to send status now? That is, are
5269                          * we done with all our data transfers?
5270                          */
5271                         if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
5272                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5273                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5274                                 KASSERT(ccb->ccb_h.status,
5275                                     ("zero ccb sts at %d", __LINE__));
5276                                 tgt->state = TGT_STATE_IN_CAM;
5277                                 if (mpt->outofbeer) {
5278                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5279                                         mpt->outofbeer = 0;
5280                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5281                                 }
5282                                 xpt_done(ccb);
5283                                 break;
5284                         }
5285                         /*
5286                          * Otherwise, send status (and sense)
5287                          */
5288                         if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5289                                 sp = sense;
5290                                 memcpy(sp, &ccb->csio.sense_data,
5291                                    min(ccb->csio.sense_len, MPT_SENSE_SIZE));
5292                         }
5293                         mpt_scsi_tgt_status(mpt, ccb, req,
5294                             ccb->csio.scsi_status, sp);
5295                         break;
5296                 }
5297                 case TGT_STATE_SENDING_STATUS:
5298                 case TGT_STATE_MOVING_DATA_AND_STATUS:
5299                 {
5300                         int ioindex;
5301                         ccb = tgt->ccb;
5302
5303                         if (tgt->req == NULL) {
5304                                 panic("mpt: turbo target reply with null "
5305                                     "associated request sending status");
5306                                 /* NOTREACHED */
5307                         }
5308
5309                         if (ccb) {
5310                                 tgt->ccb = NULL;
5311                                 if (tgt->state ==
5312                                     TGT_STATE_MOVING_DATA_AND_STATUS) {
5313                                         tgt->nxfers++;
5314                                 }
5315                                 mpt_req_untimeout(req, mpt_timeout, ccb);
5316                                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5317                                         ccb->ccb_h.status |= CAM_SENT_SENSE;
5318                                 }
5319                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5320                                     "TARGET_STATUS tag %x sts %x flgs %x req "
5321                                     "%p\n", ccb->csio.tag_id, ccb->ccb_h.status,
5322                                     ccb->ccb_h.flags, tgt->req);
5323                                 /*
5324                                  * Free the Target Send Status Request
5325                                  */
5326                                 KASSERT(tgt->req->ccb == ccb,
5327                                     ("tgt->req %p:%u tgt->req->ccb %p",
5328                                     tgt->req, tgt->req->serno, tgt->req->ccb));
5329                                 /*
5330                                  * Notify CAM that we're done
5331                                  */
5332                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5333                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5334                                 KASSERT(ccb->ccb_h.status,
5335                                     ("ZERO ccb sts at %d", __LINE__));
5336                                 tgt->ccb = NULL;
5337                         } else {
5338                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5339                                     "TARGET_STATUS non-CAM for  req %p:%u\n",
5340                                     tgt->req, tgt->req->serno);
5341                         }
5342                         TAILQ_REMOVE(&mpt->request_pending_list,
5343                             tgt->req, links);
5344                         mpt_free_request(mpt, tgt->req);
5345                         tgt->req = NULL;
5346
5347                         /*
5348                          * And re-post the Command Buffer.
5349                          * This will reset the state.
5350                          */
5351                         ioindex = GET_IO_INDEX(reply_desc);
5352                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5353                         tgt->is_local = 0;
5354                         mpt_post_target_command(mpt, req, ioindex);
5355
5356                         /*
5357                          * And post a done for anyone who cares
5358                          */
5359                         if (ccb) {
5360                                 if (mpt->outofbeer) {
5361                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5362                                         mpt->outofbeer = 0;
5363                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5364                                 }
5365                                 xpt_done(ccb);
5366                         }
5367                         break;
5368                 }
5369                 case TGT_STATE_NIL:     /* XXX This Never Happens XXX */
5370                         tgt->state = TGT_STATE_LOADED;
5371                         break;
5372                 default:
5373                         mpt_prt(mpt, "Unknown Target State 0x%x in Context "
5374                             "Reply Function\n", tgt->state);
5375                 }
5376                 return (TRUE);
5377         }
5378
5379         status = le16toh(reply_frame->IOCStatus);
5380         if (status != MPI_IOCSTATUS_SUCCESS) {
5381                 dbg = MPT_PRT_ERROR;
5382         } else {
5383                 dbg = MPT_PRT_DEBUG1;
5384         }
5385
5386         mpt_lprt(mpt, dbg,
5387             "SCSI_TGT REPLY: req=%p:%u reply=%p func=%x IOCstatus 0x%x\n",
5388              req, req->serno, reply_frame, reply_frame->Function, status);
5389
5390         switch (reply_frame->Function) {
5391         case MPI_FUNCTION_TARGET_CMD_BUFFER_POST:
5392         {
5393                 mpt_tgt_state_t *tgt;
5394 #ifdef  INVARIANTS
5395                 mpt_req_spcl(mpt, req, "tgt reply BUFFER POST", __LINE__);
5396 #endif
5397                 if (status != MPI_IOCSTATUS_SUCCESS) {
5398                         /*
5399                          * XXX What to do?
5400                          */
5401                         break;
5402                 }
5403                 tgt = MPT_TGT_STATE(mpt, req);
5404                 KASSERT(tgt->state == TGT_STATE_LOADING,
5405                     ("bad state 0x%x on reply to buffer post", tgt->state));
5406                 mpt_assign_serno(mpt, req);
5407                 tgt->state = TGT_STATE_LOADED;
5408                 break;
5409         }
5410         case MPI_FUNCTION_TARGET_ASSIST:
5411 #ifdef  INVARIANTS
5412                 mpt_req_not_spcl(mpt, req, "tgt reply TARGET ASSIST", __LINE__);
5413 #endif
5414                 mpt_prt(mpt, "target assist completion\n");
5415                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5416                 mpt_free_request(mpt, req);
5417                 break;
5418         case MPI_FUNCTION_TARGET_STATUS_SEND:
5419 #ifdef  INVARIANTS
5420                 mpt_req_not_spcl(mpt, req, "tgt reply STATUS SEND", __LINE__);
5421 #endif
5422                 mpt_prt(mpt, "status send completion\n");
5423                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5424                 mpt_free_request(mpt, req);
5425                 break;
5426         case MPI_FUNCTION_TARGET_MODE_ABORT:
5427         {
5428                 PTR_MSG_TARGET_MODE_ABORT_REPLY abtrp =
5429                     (PTR_MSG_TARGET_MODE_ABORT_REPLY) reply_frame;
5430                 PTR_MSG_TARGET_MODE_ABORT abtp =
5431                     (PTR_MSG_TARGET_MODE_ABORT) req->req_vbuf;
5432                 uint32_t cc = GET_IO_INDEX(le32toh(abtp->ReplyWord));
5433 #ifdef  INVARIANTS
5434                 mpt_req_not_spcl(mpt, req, "tgt reply TMODE ABORT", __LINE__);
5435 #endif
5436                 mpt_prt(mpt, "ABORT RX_ID 0x%x Complete; status 0x%x cnt %u\n",
5437                     cc, le16toh(abtrp->IOCStatus), le32toh(abtrp->AbortCount));
5438                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5439                 mpt_free_request(mpt, req);
5440                 break;
5441         }
5442         default:
5443                 mpt_prt(mpt, "Unknown Target Address Reply Function code: "
5444                     "0x%x\n", reply_frame->Function);
5445                 break;
5446         }
5447         return (TRUE);
5448 }