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 #if __FreeBSD_version >= 500000
 109 #include <sys/sysctl.h>
 110 #endif
 111 #include <sys/callout.h>
 112 #include <sys/kthread.h>
 113
 114 #if __FreeBSD_version >= 700025
 115 #ifndef CAM_NEW_TRAN_CODE
 116 #define CAM_NEW_TRAN_CODE       1
 117 #endif
 118 #endif
 119
 120 static void mpt_poll(struct cam_sim *);
 121 static timeout_t mpt_timeout;
 122 static void mpt_action(struct cam_sim *, union ccb *);
 123 static int
 124 mpt_get_spi_settings(struct mpt_softc *, struct ccb_trans_settings *);
 125 static void mpt_setwidth(struct mpt_softc *, int, int);
 126 static void mpt_setsync(struct mpt_softc *, int, int, int);
 127 static int mpt_update_spi_config(struct mpt_softc *, int);
 128 static void mpt_calc_geometry(struct ccb_calc_geometry *ccg, int extended);
 129
 130 static mpt_reply_handler_t mpt_scsi_reply_handler;
 131 static mpt_reply_handler_t mpt_scsi_tmf_reply_handler;
 132 static mpt_reply_handler_t mpt_fc_els_reply_handler;
 133 static int mpt_scsi_reply_frame_handler(struct mpt_softc *, request_t *,
 134                                         MSG_DEFAULT_REPLY *);
 135 static int mpt_bus_reset(struct mpt_softc *, target_id_t, lun_id_t, int);
 136 static int mpt_fc_reset_link(struct mpt_softc *, int);
 137
 138 static int mpt_spawn_recovery_thread(struct mpt_softc *mpt);
 139 static void mpt_terminate_recovery_thread(struct mpt_softc *mpt);
 140 static void mpt_recovery_thread(void *arg);
 141 static void mpt_recover_commands(struct mpt_softc *mpt);
 142
 143 static int mpt_scsi_send_tmf(struct mpt_softc *, u_int, u_int, u_int,
 144     u_int, u_int, u_int, int);
 145
 146 static void mpt_fc_post_els(struct mpt_softc *mpt, request_t *, int);
 147 static void mpt_post_target_command(struct mpt_softc *, request_t *, int);
 148 static int mpt_add_els_buffers(struct mpt_softc *mpt);
 149 static int mpt_add_target_commands(struct mpt_softc *mpt);
 150 static int mpt_enable_lun(struct mpt_softc *, target_id_t, lun_id_t);
 151 static int mpt_disable_lun(struct mpt_softc *, target_id_t, lun_id_t);
 152 static void mpt_target_start_io(struct mpt_softc *, union ccb *);
 153 static cam_status mpt_abort_target_ccb(struct mpt_softc *, union ccb *);
 154 static int mpt_abort_target_cmd(struct mpt_softc *, request_t *);
 155 static void mpt_scsi_tgt_status(struct mpt_softc *, union ccb *, request_t *,
 156     uint8_t, uint8_t const *);
 157 static void
 158 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *, request_t *, mpt_task_mgmt_t,
 159     tgt_resource_t *, int);
 160 static void mpt_tgt_dump_tgt_state(struct mpt_softc *, request_t *);
 161 static void mpt_tgt_dump_req_state(struct mpt_softc *, request_t *);
 162 static mpt_reply_handler_t mpt_scsi_tgt_reply_handler;
 163 static mpt_reply_handler_t mpt_sata_pass_reply_handler;
 164
 165 static uint32_t scsi_io_handler_id = MPT_HANDLER_ID_NONE;
 166 static uint32_t scsi_tmf_handler_id = MPT_HANDLER_ID_NONE;
 167 static uint32_t fc_els_handler_id = MPT_HANDLER_ID_NONE;
 168 static uint32_t sata_pass_handler_id = MPT_HANDLER_ID_NONE;
 169
 170 static mpt_probe_handler_t      mpt_cam_probe;
 171 static mpt_attach_handler_t     mpt_cam_attach;
 172 static mpt_enable_handler_t     mpt_cam_enable;
 173 static mpt_ready_handler_t      mpt_cam_ready;
 174 static mpt_event_handler_t      mpt_cam_event;
 175 static mpt_reset_handler_t      mpt_cam_ioc_reset;
 176 static mpt_detach_handler_t     mpt_cam_detach;
 177
 178 static struct mpt_personality mpt_cam_personality =
 179 {
 180         .name           = "mpt_cam",
 181         .probe          = mpt_cam_probe,
 182         .attach         = mpt_cam_attach,
 183         .enable         = mpt_cam_enable,
 184         .ready          = mpt_cam_ready,
 185         .event          = mpt_cam_event,
 186         .reset          = mpt_cam_ioc_reset,
 187         .detach         = mpt_cam_detach,
 188 };
 189
 190 DECLARE_MPT_PERSONALITY(mpt_cam, SI_ORDER_SECOND);
 191 MODULE_DEPEND(mpt_cam, cam, 1, 1, 1);
 192
 193 int mpt_enable_sata_wc = -1;
 194 TUNABLE_INT("hw.mpt.enable_sata_wc", &mpt_enable_sata_wc);
 195
 196 int
 197 mpt_cam_probe(struct mpt_softc *mpt)
 198 {
 199         int role;
 200
 201         /*
 202          * Only attach to nodes that support the initiator or target role
 203          * (or want to) or have RAID physical devices that need CAM pass-thru
 204          * support.
 205          */
 206         if (mpt->do_cfg_role) {
 207                 role = mpt->cfg_role;
 208         } else {
 209                 role = mpt->role;
 210         }
 211         if ((role & (MPT_ROLE_TARGET|MPT_ROLE_INITIATOR)) != 0 ||
 212             (mpt->ioc_page2 != NULL && mpt->ioc_page2->MaxPhysDisks != 0)) {
 213                 return (0);
 214         }
 215         return (ENODEV);
 216 }
 217
 218 int
 219 mpt_cam_attach(struct mpt_softc *mpt)
 220 {
 221         struct cam_devq *devq;
 222         mpt_handler_t    handler;
 223         int              maxq;
 224         int              error;
 225
 226         MPT_LOCK(mpt);
 227         TAILQ_INIT(&mpt->request_timeout_list);
 228         maxq = (mpt->ioc_facts.GlobalCredits < MPT_MAX_REQUESTS(mpt))?
 229             mpt->ioc_facts.GlobalCredits : MPT_MAX_REQUESTS(mpt);
 230
 231         handler.reply_handler = mpt_scsi_reply_handler;
 232         error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 233                                      &scsi_io_handler_id);
 234         if (error != 0) {
 235                 MPT_UNLOCK(mpt);
 236                 goto cleanup;
 237         }
 238
 239         handler.reply_handler = mpt_scsi_tmf_reply_handler;
 240         error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 241                                      &scsi_tmf_handler_id);
 242         if (error != 0) {
 243                 MPT_UNLOCK(mpt);
 244                 goto cleanup;
 245         }
 246
 247         /*
 248          * If we're fibre channel and could support target mode, we register
 249          * an ELS reply handler and give it resources.
 250          */
 251         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET) != 0) {
 252                 handler.reply_handler = mpt_fc_els_reply_handler;
 253                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 254                     &fc_els_handler_id);
 255                 if (error != 0) {
 256                         MPT_UNLOCK(mpt);
 257                         goto cleanup;
 258                 }
 259                 if (mpt_add_els_buffers(mpt) == FALSE) {
 260                         error = ENOMEM;
 261                         MPT_UNLOCK(mpt);
 262                         goto cleanup;
 263                 }
 264                 maxq -= mpt->els_cmds_allocated;
 265         }
 266
 267         /*
 268          * If we support target mode, we register a reply handler for it,
 269          * but don't add command resources until we actually enable target
 270          * mode.
 271          */
 272         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET) != 0) {
 273                 handler.reply_handler = mpt_scsi_tgt_reply_handler;
 274                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 275                     &mpt->scsi_tgt_handler_id);
 276                 if (error != 0) {
 277                         MPT_UNLOCK(mpt);
 278                         goto cleanup;
 279                 }
 280         }
 281
 282         if (mpt->is_sas) {
 283                 handler.reply_handler = mpt_sata_pass_reply_handler;
 284                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 285                     &sata_pass_handler_id);
 286                 if (error != 0) {
 287                         MPT_UNLOCK(mpt);
 288                         goto cleanup;
 289                 }
 290         }
 291
 292         /*
 293          * We keep one request reserved for timeout TMF requests.
 294          */
 295         mpt->tmf_req = mpt_get_request(mpt, FALSE);
 296         if (mpt->tmf_req == NULL) {
 297                 mpt_prt(mpt, "Unable to allocate dedicated TMF request!\n");
 298                 error = ENOMEM;
 299                 MPT_UNLOCK(mpt);
 300                 goto cleanup;
 301         }
 302
 303         /*
 304          * Mark the request as free even though not on the free list.
 305          * There is only one TMF request allowed to be outstanding at
 306          * a time and the TMF routines perform their own allocation
 307          * tracking using the standard state flags.
 308          */
 309         mpt->tmf_req->state = REQ_STATE_FREE;
 310         maxq--;
 311
 312         /*
 313          * The rest of this is CAM foo, for which we need to drop our lock
 314          */
 315         MPT_UNLOCK(mpt);
 316
 317         if (mpt_spawn_recovery_thread(mpt) != 0) {
 318                 mpt_prt(mpt, "Unable to spawn recovery thread!\n");
 319                 error = ENOMEM;
 320                 goto cleanup;
 321         }
 322
 323         /*
 324          * Create the device queue for our SIM(s).
 325          */
 326         devq = cam_simq_alloc(maxq);
 327         if (devq == NULL) {
 328                 mpt_prt(mpt, "Unable to allocate CAM SIMQ!\n");
 329                 error = ENOMEM;
 330                 goto cleanup;
 331         }
 332
 333         /*
 334          * Construct our SIM entry.
 335          */
 336         mpt->sim =
 337             mpt_sim_alloc(mpt_action, mpt_poll, "mpt", mpt, 1, maxq, devq);
 338         if (mpt->sim == NULL) {
 339                 mpt_prt(mpt, "Unable to allocate CAM SIM!\n");
 340                 cam_simq_free(devq);
 341                 error = ENOMEM;
 342                 goto cleanup;
 343         }
 344
 345         /*
 346          * Register exactly this bus.
 347          */
 348         MPT_LOCK(mpt);
 349         if (mpt_xpt_bus_register(mpt->sim, mpt->dev, 0) != CAM_SUCCESS) {
 350                 mpt_prt(mpt, "Bus registration Failed!\n");
 351                 error = ENOMEM;
 352                 MPT_UNLOCK(mpt);
 353                 goto cleanup;
 354         }
 355
 356         if (xpt_create_path(&mpt->path, NULL, cam_sim_path(mpt->sim),
 357             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 358                 mpt_prt(mpt, "Unable to allocate Path!\n");
 359                 error = ENOMEM;
 360                 MPT_UNLOCK(mpt);
 361                 goto cleanup;
 362         }
 363         MPT_UNLOCK(mpt);
 364
 365         /*
 366          * Only register a second bus for RAID physical
 367          * devices if the controller supports RAID.
 368          */
 369         if (mpt->ioc_page2 == NULL || mpt->ioc_page2->MaxPhysDisks == 0) {
 370                 return (0);
 371         }
 372
 373         /*
 374          * Create a "bus" to export all hidden disks to CAM.
 375          */
 376         mpt->phydisk_sim =
 377             mpt_sim_alloc(mpt_action, mpt_poll, "mpt", mpt, 1, maxq, devq);
 378         if (mpt->phydisk_sim == NULL) {
 379                 mpt_prt(mpt, "Unable to allocate Physical Disk CAM SIM!\n");
 380                 error = ENOMEM;
 381                 goto cleanup;
 382         }
 383
 384         /*
 385          * Register this bus.
 386          */
 387         MPT_LOCK(mpt);
 388         if (mpt_xpt_bus_register(mpt->phydisk_sim, mpt->dev, 1) !=
 389             CAM_SUCCESS) {
 390                 mpt_prt(mpt, "Physical Disk Bus registration Failed!\n");
 391                 error = ENOMEM;
 392                 MPT_UNLOCK(mpt);
 393                 goto cleanup;
 394         }
 395
 396         if (xpt_create_path(&mpt->phydisk_path, NULL,
 397             cam_sim_path(mpt->phydisk_sim),
 398             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 399                 mpt_prt(mpt, "Unable to allocate Physical Disk Path!\n");
 400                 error = ENOMEM;
 401                 MPT_UNLOCK(mpt);
 402                 goto cleanup;
 403         }
 404         MPT_UNLOCK(mpt);
 405         mpt_lprt(mpt, MPT_PRT_DEBUG, "attached cam\n");
 406         return (0);
 407
 408 cleanup:
 409         mpt_cam_detach(mpt);
 410         return (error);
 411 }
 412
 413 /*
 414  * Read FC configuration information
 415  */
 416 static int
 417 mpt_read_config_info_fc(struct mpt_softc *mpt)
 418 {
 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 #if __FreeBSD_version >= 500000
 477         MPT_UNLOCK(mpt);
 478         {
 479                 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(mpt->dev);
 480                 struct sysctl_oid *tree = device_get_sysctl_tree(mpt->dev);
 481
 482                 snprintf(mpt->scinfo.fc.wwnn,
 483                     sizeof (mpt->scinfo.fc.wwnn), "0x%08x%08x",
 484                     mpt->mpt_fcport_page0.WWNN.High,
 485                     mpt->mpt_fcport_page0.WWNN.Low);
 486
 487                 snprintf(mpt->scinfo.fc.wwpn,
 488                     sizeof (mpt->scinfo.fc.wwpn), "0x%08x%08x",
 489                     mpt->mpt_fcport_page0.WWPN.High,
 490                     mpt->mpt_fcport_page0.WWPN.Low);
 491
 492                 SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
 493                        "wwnn", CTLFLAG_RD, mpt->scinfo.fc.wwnn, 0,
 494                        "World Wide Node Name");
 495
 496                 SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
 497                        "wwpn", CTLFLAG_RD, mpt->scinfo.fc.wwpn, 0,
 498                        "World Wide Port Name");
 499
 500         }
 501         MPT_LOCK(mpt);
 502 #endif
 503         return (0);
 504 }
 505
 506 /*
 507  * Set FC configuration information.
 508  */
 509 static int
 510 mpt_set_initial_config_fc(struct mpt_softc *mpt)
 511 {
 512
 513         CONFIG_PAGE_FC_PORT_1 fc;
 514         U32 fl;
 515         int r, doit = 0;
 516         int role;
 517
 518         r = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_FC_PORT, 1, 0,
 519             &fc.Header, FALSE, 5000);
 520         if (r) {
 521                 mpt_prt(mpt, "failed to read FC page 1 header\n");
 522                 return (mpt_fc_reset_link(mpt, 1));
 523         }
 524
 525         r = mpt_read_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_NVRAM, 0,
 526             &fc.Header, sizeof (fc), FALSE, 5000);
 527         if (r) {
 528                 mpt_prt(mpt, "failed to read FC page 1\n");
 529                 return (mpt_fc_reset_link(mpt, 1));
 530         }
 531         mpt2host_config_page_fc_port_1(&fc);
 532
 533         /*
 534          * Check our flags to make sure we support the role we want.
 535          */
 536         doit = 0;
 537         role = 0;
 538         fl = fc.Flags;
 539
 540         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_INIT) {
 541                 role |= MPT_ROLE_INITIATOR;
 542         }
 543         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG) {
 544                 role |= MPT_ROLE_TARGET;
 545         }
 546
 547         fl &= ~MPI_FCPORTPAGE1_FLAGS_PROT_MASK;
 548
 549         if (mpt->do_cfg_role == 0) {
 550                 role = mpt->cfg_role;
 551         } else {
 552                 mpt->do_cfg_role = 0;
 553         }
 554
 555         if (role != mpt->cfg_role) {
 556                 if (mpt->cfg_role & MPT_ROLE_INITIATOR) {
 557                         if ((role & MPT_ROLE_INITIATOR) == 0) {
 558                                 mpt_prt(mpt, "adding initiator role\n");
 559                                 fl |= MPI_FCPORTPAGE1_FLAGS_PROT_FCP_INIT;
 560                                 doit++;
 561                         } else {
 562                                 mpt_prt(mpt, "keeping initiator role\n");
 563                         }
 564                 } else if (role & MPT_ROLE_INITIATOR) {
 565                         mpt_prt(mpt, "removing initiator role\n");
 566                         doit++;
 567                 }
 568                 if (mpt->cfg_role & MPT_ROLE_TARGET) {
 569                         if ((role & MPT_ROLE_TARGET) == 0) {
 570                                 mpt_prt(mpt, "adding target role\n");
 571                                 fl |= MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG;
 572                                 doit++;
 573                         } else {
 574                                 mpt_prt(mpt, "keeping target role\n");
 575                         }
 576                 } else if (role & MPT_ROLE_TARGET) {
 577                         mpt_prt(mpt, "removing target role\n");
 578                         doit++;
 579                 }
 580                 mpt->role = mpt->cfg_role;
 581         }
 582
 583         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG) {
 584                 if ((fl & MPI_FCPORTPAGE1_FLAGS_TARGET_MODE_OXID) == 0) {
 585                         mpt_prt(mpt, "adding OXID option\n");
 586                         fl |= MPI_FCPORTPAGE1_FLAGS_TARGET_MODE_OXID;
 587                         doit++;
 588                 }
 589         }
 590
 591         if (doit) {
 592                 fc.Flags = fl;
 593                 host2mpt_config_page_fc_port_1(&fc);
 594                 r = mpt_write_cfg_page(mpt,
 595                     MPI_CONFIG_ACTION_PAGE_WRITE_NVRAM, 0, &fc.Header,
 596                     sizeof(fc), FALSE, 5000);
 597                 if (r != 0) {
 598                         mpt_prt(mpt, "failed to update NVRAM with changes\n");
 599                         return (0);
 600                 }
 601                 mpt_prt(mpt, "NOTE: NVRAM changes will not take "
 602                     "effect until next reboot or IOC reset\n");
 603         }
 604         return (0);
 605 }
 606
 607 static int
 608 mptsas_sas_io_unit_pg0(struct mpt_softc *mpt, struct mptsas_portinfo *portinfo)
 609 {
 610         ConfigExtendedPageHeader_t hdr;
 611         struct mptsas_phyinfo *phyinfo;
 612         SasIOUnitPage0_t *buffer;
 613         int error, len, i;
 614
 615         error = mpt_read_extcfg_header(mpt, MPI_SASIOUNITPAGE0_PAGEVERSION,
 616                                        0, 0, MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT,
 617                                        &hdr, 0, 10000);
 618         if (error)
 619                 goto out;
 620         if (hdr.ExtPageLength == 0) {
 621                 error = ENXIO;
 622                 goto out;
 623         }
 624
 625         len = hdr.ExtPageLength * 4;
 626         buffer = malloc(len, M_DEVBUF, M_NOWAIT|M_ZERO);
 627         if (buffer == NULL) {
 628                 error = ENOMEM;
 629                 goto out;
 630         }
 631
 632         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 633                                      0, &hdr, buffer, len, 0, 10000);
 634         if (error) {
 635                 free(buffer, M_DEVBUF);
 636                 goto out;
 637         }
 638
 639         portinfo->num_phys = buffer->NumPhys;
 640         portinfo->phy_info = malloc(sizeof(*portinfo->phy_info) *
 641             portinfo->num_phys, M_DEVBUF, M_NOWAIT|M_ZERO);
 642         if (portinfo->phy_info == NULL) {
 643                 free(buffer, M_DEVBUF);
 644                 error = ENOMEM;
 645                 goto out;
 646         }
 647
 648         for (i = 0; i < portinfo->num_phys; i++) {
 649                 phyinfo = &portinfo->phy_info[i];
 650                 phyinfo->phy_num = i;
 651                 phyinfo->port_id = buffer->PhyData[i].Port;
 652                 phyinfo->negotiated_link_rate =
 653                     buffer->PhyData[i].NegotiatedLinkRate;
 654                 phyinfo->handle =
 655                     le16toh(buffer->PhyData[i].ControllerDevHandle);
 656         }
 657
 658         free(buffer, M_DEVBUF);
 659 out:
 660         return (error);
 661 }
 662
 663 static int
 664 mptsas_sas_phy_pg0(struct mpt_softc *mpt, struct mptsas_phyinfo *phy_info,
 665         uint32_t form, uint32_t form_specific)
 666 {
 667         ConfigExtendedPageHeader_t hdr;
 668         SasPhyPage0_t *buffer;
 669         int error;
 670
 671         error = mpt_read_extcfg_header(mpt, MPI_SASPHY0_PAGEVERSION, 0, 0,
 672                                        MPI_CONFIG_EXTPAGETYPE_SAS_PHY, &hdr,
 673                                        0, 10000);
 674         if (error)
 675                 goto out;
 676         if (hdr.ExtPageLength == 0) {
 677                 error = ENXIO;
 678                 goto out;
 679         }
 680
 681         buffer = malloc(sizeof(SasPhyPage0_t), M_DEVBUF, M_NOWAIT|M_ZERO);
 682         if (buffer == NULL) {
 683                 error = ENOMEM;
 684                 goto out;
 685         }
 686
 687         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 688                                      form + form_specific, &hdr, buffer,
 689                                      sizeof(SasPhyPage0_t), 0, 10000);
 690         if (error) {
 691                 free(buffer, M_DEVBUF);
 692                 goto out;
 693         }
 694
 695         phy_info->hw_link_rate = buffer->HwLinkRate;
 696         phy_info->programmed_link_rate = buffer->ProgrammedLinkRate;
 697         phy_info->identify.dev_handle = le16toh(buffer->OwnerDevHandle);
 698         phy_info->attached.dev_handle = le16toh(buffer->AttachedDevHandle);
 699
 700         free(buffer, M_DEVBUF);
 701 out:
 702         return (error);
 703 }
 704
 705 static int
 706 mptsas_sas_device_pg0(struct mpt_softc *mpt, struct mptsas_devinfo *device_info,
 707         uint32_t form, uint32_t form_specific)
 708 {
 709         ConfigExtendedPageHeader_t hdr;
 710         SasDevicePage0_t *buffer;
 711         uint64_t sas_address;
 712         int error = 0;
 713
 714         bzero(device_info, sizeof(*device_info));
 715         error = mpt_read_extcfg_header(mpt, MPI_SASDEVICE0_PAGEVERSION, 0, 0,
 716                                        MPI_CONFIG_EXTPAGETYPE_SAS_DEVICE,
 717                                        &hdr, 0, 10000);
 718         if (error)
 719                 goto out;
 720         if (hdr.ExtPageLength == 0) {
 721                 error = ENXIO;
 722                 goto out;
 723         }
 724
 725         buffer = malloc(sizeof(SasDevicePage0_t), M_DEVBUF, M_NOWAIT|M_ZERO);
 726         if (buffer == NULL) {
 727                 error = ENOMEM;
 728                 goto out;
 729         }
 730
 731         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 732                                      form + form_specific, &hdr, buffer,
 733                                      sizeof(SasDevicePage0_t), 0, 10000);
 734         if (error) {
 735                 free(buffer, M_DEVBUF);
 736                 goto out;
 737         }
 738
 739         device_info->dev_handle = le16toh(buffer->DevHandle);
 740         device_info->parent_dev_handle = le16toh(buffer->ParentDevHandle);
 741         device_info->enclosure_handle = le16toh(buffer->EnclosureHandle);
 742         device_info->slot = le16toh(buffer->Slot);
 743         device_info->phy_num = buffer->PhyNum;
 744         device_info->physical_port = buffer->PhysicalPort;
 745         device_info->target_id = buffer->TargetID;
 746         device_info->bus = buffer->Bus;
 747         bcopy(&buffer->SASAddress, &sas_address, sizeof(uint64_t));
 748         device_info->sas_address = le64toh(sas_address);
 749         device_info->device_info = le32toh(buffer->DeviceInfo);
 750
 751         free(buffer, M_DEVBUF);
 752 out:
 753         return (error);
 754 }
 755
 756 /*
 757  * Read SAS configuration information. Nothing to do yet.
 758  */
 759 static int
 760 mpt_read_config_info_sas(struct mpt_softc *mpt)
 761 {
 762         struct mptsas_portinfo *portinfo;
 763         struct mptsas_phyinfo *phyinfo;
 764         int error, i;
 765
 766         portinfo = malloc(sizeof(*portinfo), M_DEVBUF, M_NOWAIT|M_ZERO);
 767         if (portinfo == NULL)
 768                 return (ENOMEM);
 769
 770         error = mptsas_sas_io_unit_pg0(mpt, portinfo);
 771         if (error) {
 772                 free(portinfo, M_DEVBUF);
 773                 return (0);
 774         }
 775
 776         for (i = 0; i < portinfo->num_phys; i++) {
 777                 phyinfo = &portinfo->phy_info[i];
 778                 error = mptsas_sas_phy_pg0(mpt, phyinfo,
 779                     (MPI_SAS_PHY_PGAD_FORM_PHY_NUMBER <<
 780                     MPI_SAS_PHY_PGAD_FORM_SHIFT), i);
 781                 if (error)
 782                         break;
 783                 error = mptsas_sas_device_pg0(mpt, &phyinfo->identify,
 784                     (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
 785                     MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
 786                     phyinfo->handle);
 787                 if (error)
 788                         break;
 789                 phyinfo->identify.phy_num = phyinfo->phy_num = i;
 790                 if (phyinfo->attached.dev_handle)
 791                         error = mptsas_sas_device_pg0(mpt,
 792                             &phyinfo->attached,
 793                             (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
 794                             MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
 795                             phyinfo->attached.dev_handle);
 796                 if (error)
 797                         break;
 798         }
 799         mpt->sas_portinfo = portinfo;
 800         return (0);
 801 }
 802
 803 static void
 804 mptsas_set_sata_wc(struct mpt_softc *mpt, struct mptsas_devinfo *devinfo,
 805         int enabled)
 806 {
 807         SataPassthroughRequest_t        *pass;
 808         request_t *req;
 809         int error, status;
 810
 811         req = mpt_get_request(mpt, 0);
 812         if (req == NULL)
 813                 return;
 814
 815         pass = req->req_vbuf;
 816         bzero(pass, sizeof(SataPassthroughRequest_t));
 817         pass->Function = MPI_FUNCTION_SATA_PASSTHROUGH;
 818         pass->TargetID = devinfo->target_id;
 819         pass->Bus = devinfo->bus;
 820         pass->PassthroughFlags = 0;
 821         pass->ConnectionRate = MPI_SATA_PT_REQ_CONNECT_RATE_NEGOTIATED;
 822         pass->DataLength = 0;
 823         pass->MsgContext = htole32(req->index | sata_pass_handler_id);
 824         pass->CommandFIS[0] = 0x27;
 825         pass->CommandFIS[1] = 0x80;
 826         pass->CommandFIS[2] = 0xef;
 827         pass->CommandFIS[3] = (enabled) ? 0x02 : 0x82;
 828         pass->CommandFIS[7] = 0x40;
 829         pass->CommandFIS[15] = 0x08;
 830
 831         mpt_check_doorbell(mpt);
 832         mpt_send_cmd(mpt, req);
 833         error = mpt_wait_req(mpt, req, REQ_STATE_DONE, REQ_STATE_DONE, 0,
 834                              10 * 1000);
 835         if (error) {
 836                 mpt_free_request(mpt, req);
 837                 printf("error %d sending passthrough\n", error);
 838                 return;
 839         }
 840
 841         status = le16toh(req->IOCStatus);
 842         if (status != MPI_IOCSTATUS_SUCCESS) {
 843                 mpt_free_request(mpt, req);
 844                 printf("IOCSTATUS %d\n", status);
 845                 return;
 846         }
 847
 848         mpt_free_request(mpt, req);
 849 }
 850
 851 /*
 852  * Set SAS configuration information. Nothing to do yet.
 853  */
 854 static int
 855 mpt_set_initial_config_sas(struct mpt_softc *mpt)
 856 {
 857         struct mptsas_phyinfo *phyinfo;
 858         int i;
 859
 860         if ((mpt_enable_sata_wc != -1) && (mpt->sas_portinfo != NULL)) {
 861                 for (i = 0; i < mpt->sas_portinfo->num_phys; i++) {
 862                         phyinfo = &mpt->sas_portinfo->phy_info[i];
 863                         if (phyinfo->attached.dev_handle == 0)
 864                                 continue;
 865                         if ((phyinfo->attached.device_info &
 866                             MPI_SAS_DEVICE_INFO_SATA_DEVICE) == 0)
 867                                 continue;
 868                         if (bootverbose)
 869                                 device_printf(mpt->dev,
 870                                     "%sabling SATA WC on phy %d\n",
 871                                     (mpt_enable_sata_wc) ? "En" : "Dis", i);
 872                         mptsas_set_sata_wc(mpt, &phyinfo->attached,
 873                                            mpt_enable_sata_wc);
 874                 }
 875         }
 876
 877         return (0);
 878 }
 879
 880 static int
 881 mpt_sata_pass_reply_handler(struct mpt_softc *mpt, request_t *req,
 882  uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
 883 {
 884         if (req != NULL) {
 885
 886                 if (reply_frame != NULL) {
 887                         req->IOCStatus = le16toh(reply_frame->IOCStatus);
 888                 }
 889                 req->state &= ~REQ_STATE_QUEUED;
 890                 req->state |= REQ_STATE_DONE;
 891                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
 892                 if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
 893                         wakeup(req);
 894                 } else if ((req->state & REQ_STATE_TIMEDOUT) != 0) {
 895                         /*
 896                          * Whew- we can free this request (late completion)
 897                          */
 898                         mpt_free_request(mpt, req);
 899                 }
 900         }
 901
 902         return (TRUE);
 903 }
 904
 905 /*
 906  * Read SCSI configuration information
 907  */
 908 static int
 909 mpt_read_config_info_spi(struct mpt_softc *mpt)
 910 {
 911         int rv, i;
 912
 913         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 0, 0,
 914             &mpt->mpt_port_page0.Header, FALSE, 5000);
 915         if (rv) {
 916                 return (-1);
 917         }
 918         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 0 Header: %x %x %x %x\n",
 919             mpt->mpt_port_page0.Header.PageVersion,
 920             mpt->mpt_port_page0.Header.PageLength,
 921             mpt->mpt_port_page0.Header.PageNumber,
 922             mpt->mpt_port_page0.Header.PageType);
 923
 924         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 1, 0,
 925             &mpt->mpt_port_page1.Header, FALSE, 5000);
 926         if (rv) {
 927                 return (-1);
 928         }
 929         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 1 Header: %x %x %x %x\n",
 930             mpt->mpt_port_page1.Header.PageVersion,
 931             mpt->mpt_port_page1.Header.PageLength,
 932             mpt->mpt_port_page1.Header.PageNumber,
 933             mpt->mpt_port_page1.Header.PageType);
 934
 935         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 2, 0,
 936             &mpt->mpt_port_page2.Header, FALSE, 5000);
 937         if (rv) {
 938                 return (-1);
 939         }
 940         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 2 Header: %x %x %x %x\n",
 941             mpt->mpt_port_page2.Header.PageVersion,
 942             mpt->mpt_port_page2.Header.PageLength,
 943             mpt->mpt_port_page2.Header.PageNumber,
 944             mpt->mpt_port_page2.Header.PageType);
 945
 946         for (i = 0; i < 16; i++) {
 947                 rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
 948                     0, i, &mpt->mpt_dev_page0[i].Header, FALSE, 5000);
 949                 if (rv) {
 950                         return (-1);
 951                 }
 952                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 953                     "SPI Target %d Device Page 0 Header: %x %x %x %x\n", i,
 954                     mpt->mpt_dev_page0[i].Header.PageVersion,
 955                     mpt->mpt_dev_page0[i].Header.PageLength,
 956                     mpt->mpt_dev_page0[i].Header.PageNumber,
 957                     mpt->mpt_dev_page0[i].Header.PageType);
 958
 959                 rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
 960                     1, i, &mpt->mpt_dev_page1[i].Header, FALSE, 5000);
 961                 if (rv) {
 962                         return (-1);
 963                 }
 964                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 965                     "SPI Target %d Device Page 1 Header: %x %x %x %x\n", i,
 966                     mpt->mpt_dev_page1[i].Header.PageVersion,
 967                     mpt->mpt_dev_page1[i].Header.PageLength,
 968                     mpt->mpt_dev_page1[i].Header.PageNumber,
 969                     mpt->mpt_dev_page1[i].Header.PageType);
 970         }
 971
 972         /*
 973          * At this point, we don't *have* to fail. As long as we have
 974          * valid config header information, we can (barely) lurch
 975          * along.
 976          */
 977
 978         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page0.Header,
 979             sizeof(mpt->mpt_port_page0), FALSE, 5000);
 980         if (rv) {
 981                 mpt_prt(mpt, "failed to read SPI Port Page 0\n");
 982         } else {
 983                 mpt2host_config_page_scsi_port_0(&mpt->mpt_port_page0);
 984                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
 985                     "SPI Port Page 0: Capabilities %x PhysicalInterface %x\n",
 986                     mpt->mpt_port_page0.Capabilities,
 987                     mpt->mpt_port_page0.PhysicalInterface);
 988         }
 989
 990         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page1.Header,
 991             sizeof(mpt->mpt_port_page1), FALSE, 5000);
 992         if (rv) {
 993                 mpt_prt(mpt, "failed to read SPI Port Page 1\n");
 994         } else {
 995                 mpt2host_config_page_scsi_port_1(&mpt->mpt_port_page1);
 996                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 997                     "SPI Port Page 1: Configuration %x OnBusTimerValue %x\n",
 998                     mpt->mpt_port_page1.Configuration,
 999                     mpt->mpt_port_page1.OnBusTimerValue);
1000         }
1001
1002         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page2.Header,
1003             sizeof(mpt->mpt_port_page2), FALSE, 5000);
1004         if (rv) {
1005                 mpt_prt(mpt, "failed to read SPI Port Page 2\n");
1006         } else {
1007                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1008                     "Port Page 2: Flags %x Settings %x\n",
1009                     mpt->mpt_port_page2.PortFlags,
1010                     mpt->mpt_port_page2.PortSettings);
1011                 mpt2host_config_page_scsi_port_2(&mpt->mpt_port_page2);
1012                 for (i = 0; i < 16; i++) {
1013                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1014                             " Port Page 2 Tgt %d: timo %x SF %x Flags %x\n",
1015                             i, mpt->mpt_port_page2.DeviceSettings[i].Timeout,
1016                             mpt->mpt_port_page2.DeviceSettings[i].SyncFactor,
1017                             mpt->mpt_port_page2.DeviceSettings[i].DeviceFlags);
1018                 }
1019         }
1020
1021         for (i = 0; i < 16; i++) {
1022                 rv = mpt_read_cur_cfg_page(mpt, i,
1023                     &mpt->mpt_dev_page0[i].Header, sizeof(*mpt->mpt_dev_page0),
1024                     FALSE, 5000);
1025                 if (rv) {
1026                         mpt_prt(mpt,
1027                             "cannot read SPI Target %d Device Page 0\n", i);
1028                         continue;
1029                 }
1030                 mpt2host_config_page_scsi_device_0(&mpt->mpt_dev_page0[i]);
1031                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1032                     "target %d page 0: Negotiated Params %x Information %x\n",
1033                     i, mpt->mpt_dev_page0[i].NegotiatedParameters,
1034                     mpt->mpt_dev_page0[i].Information);
1035
1036                 rv = mpt_read_cur_cfg_page(mpt, i,
1037                     &mpt->mpt_dev_page1[i].Header, sizeof(*mpt->mpt_dev_page1),
1038                     FALSE, 5000);
1039                 if (rv) {
1040                         mpt_prt(mpt,
1041                             "cannot read SPI Target %d Device Page 1\n", i);
1042                         continue;
1043                 }
1044                 mpt2host_config_page_scsi_device_1(&mpt->mpt_dev_page1[i]);
1045                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1046                     "target %d page 1: Requested Params %x Configuration %x\n",
1047                     i, mpt->mpt_dev_page1[i].RequestedParameters,
1048                     mpt->mpt_dev_page1[i].Configuration);
1049         }
1050         return (0);
1051 }
1052
1053 /*
1054  * Validate SPI configuration information.
1055  *
1056  * In particular, validate SPI Port Page 1.
1057  */
1058 static int
1059 mpt_set_initial_config_spi(struct mpt_softc *mpt)
1060 {
1061         int error, i, pp1val;
1062
1063         mpt->mpt_disc_enable = 0xff;
1064         mpt->mpt_tag_enable = 0;
1065
1066         pp1val = ((1 << mpt->mpt_ini_id) <<
1067             MPI_SCSIPORTPAGE1_CFG_SHIFT_PORT_RESPONSE_ID) | mpt->mpt_ini_id;
1068         if (mpt->mpt_port_page1.Configuration != pp1val) {
1069                 CONFIG_PAGE_SCSI_PORT_1 tmp;
1070
1071                 mpt_prt(mpt, "SPI Port Page 1 Config value bad (%x)- should "
1072                     "be %x\n", mpt->mpt_port_page1.Configuration, pp1val);
1073                 tmp = mpt->mpt_port_page1;
1074                 tmp.Configuration = pp1val;
1075                 host2mpt_config_page_scsi_port_1(&tmp);
1076                 error = mpt_write_cur_cfg_page(mpt, 0,
1077                     &tmp.Header, sizeof(tmp), FALSE, 5000);
1078                 if (error) {
1079                         return (-1);
1080                 }
1081                 error = mpt_read_cur_cfg_page(mpt, 0,
1082                     &tmp.Header, sizeof(tmp), FALSE, 5000);
1083                 if (error) {
1084                         return (-1);
1085                 }
1086                 mpt2host_config_page_scsi_port_1(&tmp);
1087                 if (tmp.Configuration != pp1val) {
1088                         mpt_prt(mpt,
1089                             "failed to reset SPI Port Page 1 Config value\n");
1090                         return (-1);
1091                 }
1092                 mpt->mpt_port_page1 = tmp;
1093         }
1094
1095         /*
1096          * The purpose of this exercise is to get
1097          * all targets back to async/narrow.
1098          *
1099          * We skip this step if the BIOS has already negotiated
1100          * speeds with the targets.
1101          */
1102         i = mpt->mpt_port_page2.PortSettings &
1103             MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
1104         if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS) {
1105                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1106                     "honoring BIOS transfer negotiations\n");
1107         } else {
1108                 for (i = 0; i < 16; i++) {
1109                         mpt->mpt_dev_page1[i].RequestedParameters = 0;
1110                         mpt->mpt_dev_page1[i].Configuration = 0;
1111                         (void) mpt_update_spi_config(mpt, i);
1112                 }
1113         }
1114         return (0);
1115 }
1116
1117 int
1118 mpt_cam_enable(struct mpt_softc *mpt)
1119 {
1120         int error;
1121
1122         MPT_LOCK(mpt);
1123
1124         error = EIO;
1125         if (mpt->is_fc) {
1126                 if (mpt_read_config_info_fc(mpt)) {
1127                         goto out;
1128                 }
1129                 if (mpt_set_initial_config_fc(mpt)) {
1130                         goto out;
1131                 }
1132         } else if (mpt->is_sas) {
1133                 if (mpt_read_config_info_sas(mpt)) {
1134                         goto out;
1135                 }
1136                 if (mpt_set_initial_config_sas(mpt)) {
1137                         goto out;
1138                 }
1139         } else if (mpt->is_spi) {
1140                 if (mpt_read_config_info_spi(mpt)) {
1141                         goto out;
1142                 }
1143                 if (mpt_set_initial_config_spi(mpt)) {
1144                         goto out;
1145                 }
1146         }
1147         error = 0;
1148
1149 out:
1150         MPT_UNLOCK(mpt);
1151         return (error);
1152 }
1153
1154 void
1155 mpt_cam_ready(struct mpt_softc *mpt)
1156 {
1157         /*
1158          * If we're in target mode, hang out resources now
1159          * so we don't cause the world to hang talking to us.
1160          */
1161         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
1162                 /*
1163                  * Try to add some target command resources
1164                  */
1165                 MPT_LOCK(mpt);
1166                 if (mpt_add_target_commands(mpt) == FALSE) {
1167                         mpt_prt(mpt, "failed to add target commands\n");
1168                 }
1169                 MPT_UNLOCK(mpt);
1170         }
1171         mpt->ready = 1;
1172 }
1173
1174 void
1175 mpt_cam_detach(struct mpt_softc *mpt)
1176 {
1177         mpt_handler_t handler;
1178
1179         MPT_LOCK(mpt);
1180         mpt->ready = 0;
1181         mpt_terminate_recovery_thread(mpt);
1182
1183         handler.reply_handler = mpt_scsi_reply_handler;
1184         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1185                                scsi_io_handler_id);
1186         handler.reply_handler = mpt_scsi_tmf_reply_handler;
1187         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1188                                scsi_tmf_handler_id);
1189         handler.reply_handler = mpt_fc_els_reply_handler;
1190         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1191                                fc_els_handler_id);
1192         handler.reply_handler = mpt_scsi_tgt_reply_handler;
1193         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1194                                mpt->scsi_tgt_handler_id);
1195         handler.reply_handler = mpt_sata_pass_reply_handler;
1196         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1197                                sata_pass_handler_id);
1198
1199         if (mpt->tmf_req != NULL) {
1200                 mpt->tmf_req->state = REQ_STATE_ALLOCATED;
1201                 mpt_free_request(mpt, mpt->tmf_req);
1202                 mpt->tmf_req = NULL;
1203         }
1204         if (mpt->sas_portinfo != NULL) {
1205                 free(mpt->sas_portinfo, M_DEVBUF);
1206                 mpt->sas_portinfo = NULL;
1207         }
1208         MPT_UNLOCK(mpt);
1209
1210         if (mpt->sim != NULL) {
1211                 xpt_free_path(mpt->path);
1212                 MPT_LOCK(mpt);
1213                 xpt_bus_deregister(cam_sim_path(mpt->sim));
1214                 MPT_UNLOCK(mpt);
1215                 cam_sim_free(mpt->sim, TRUE);
1216                 mpt->sim = NULL;
1217         }
1218
1219         if (mpt->phydisk_sim != NULL) {
1220                 xpt_free_path(mpt->phydisk_path);
1221                 MPT_LOCK(mpt);
1222                 xpt_bus_deregister(cam_sim_path(mpt->phydisk_sim));
1223                 MPT_UNLOCK(mpt);
1224                 cam_sim_free(mpt->phydisk_sim, TRUE);
1225                 mpt->phydisk_sim = NULL;
1226         }
1227 }
1228
1229 /* This routine is used after a system crash to dump core onto the swap device.
1230  */
1231 static void
1232 mpt_poll(struct cam_sim *sim)
1233 {
1234         struct mpt_softc *mpt;
1235
1236         mpt = (struct mpt_softc *)cam_sim_softc(sim);
1237         mpt_intr(mpt);
1238 }
1239
1240 /*
1241  * Watchdog timeout routine for SCSI requests.
1242  */
1243 static void
1244 mpt_timeout(void *arg)
1245 {
1246         union ccb        *ccb;
1247         struct mpt_softc *mpt;
1248         request_t        *req;
1249
1250         ccb = (union ccb *)arg;
1251         mpt = ccb->ccb_h.ccb_mpt_ptr;
1252
1253 #if __FreeBSD_version < 500000
1254         MPT_LOCK(mpt);
1255 #endif
1256         MPT_LOCK_ASSERT(mpt);
1257         req = ccb->ccb_h.ccb_req_ptr;
1258         mpt_prt(mpt, "request %p:%u timed out for ccb %p (req->ccb %p)\n", req,
1259             req->serno, ccb, req->ccb);
1260 /* XXX: WHAT ARE WE TRYING TO DO HERE? */
1261         if ((req->state & REQ_STATE_QUEUED) == REQ_STATE_QUEUED) {
1262                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
1263                 TAILQ_INSERT_TAIL(&mpt->request_timeout_list, req, links);
1264                 req->state |= REQ_STATE_TIMEDOUT;
1265                 mpt_wakeup_recovery_thread(mpt);
1266         }
1267 #if __FreeBSD_version < 500000
1268         MPT_UNLOCK(mpt);
1269 #endif
1270 }
1271
1272 /*
1273  * Callback routine from "bus_dmamap_load" or, in simple cases, called directly.
1274  *
1275  * Takes a list of physical segments and builds the SGL for SCSI IO command
1276  * and forwards the commard to the IOC after one last check that CAM has not
1277  * aborted the transaction.
1278  */
1279 static void
1280 mpt_execute_req_a64(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1281 {
1282         request_t *req, *trq;
1283         char *mpt_off;
1284         union ccb *ccb;
1285         struct mpt_softc *mpt;
1286         int seg, first_lim;
1287         uint32_t flags, nxt_off;
1288         void *sglp = NULL;
1289         MSG_REQUEST_HEADER *hdrp;
1290         SGE_SIMPLE64 *se;
1291         SGE_CHAIN64 *ce;
1292         int istgt = 0;
1293
1294         req = (request_t *)arg;
1295         ccb = req->ccb;
1296
1297         mpt = ccb->ccb_h.ccb_mpt_ptr;
1298         req = ccb->ccb_h.ccb_req_ptr;
1299
1300         hdrp = req->req_vbuf;
1301         mpt_off = req->req_vbuf;
1302
1303         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1304                 error = EFBIG;
1305         }
1306
1307         if (error == 0) {
1308                 switch (hdrp->Function) {
1309                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1310                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1311                         istgt = 0;
1312                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1313                         break;
1314                 case MPI_FUNCTION_TARGET_ASSIST:
1315                         istgt = 1;
1316                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1317                         break;
1318                 default:
1319                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req_a64\n",
1320                             hdrp->Function);
1321                         error = EINVAL;
1322                         break;
1323                 }
1324         }
1325
1326         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1327                 error = EFBIG;
1328                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1329                     nseg, mpt->max_seg_cnt);
1330         }
1331
1332 bad:
1333         if (error != 0) {
1334                 if (error != EFBIG && error != ENOMEM) {
1335                         mpt_prt(mpt, "mpt_execute_req_a64: err %d\n", error);
1336                 }
1337                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1338                         cam_status status;
1339                         mpt_freeze_ccb(ccb);
1340                         if (error == EFBIG) {
1341                                 status = CAM_REQ_TOO_BIG;
1342                         } else if (error == ENOMEM) {
1343                                 if (mpt->outofbeer == 0) {
1344                                         mpt->outofbeer = 1;
1345                                         xpt_freeze_simq(mpt->sim, 1);
1346                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1347                                             "FREEZEQ\n");
1348                                 }
1349                                 status = CAM_REQUEUE_REQ;
1350                         } else {
1351                                 status = CAM_REQ_CMP_ERR;
1352                         }
1353                         mpt_set_ccb_status(ccb, status);
1354                 }
1355                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1356                         request_t *cmd_req =
1357                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1358                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1359                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1360                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1361                 }
1362                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1363                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1364                 xpt_done(ccb);
1365                 CAMLOCK_2_MPTLOCK(mpt);
1366                 mpt_free_request(mpt, req);
1367                 MPTLOCK_2_CAMLOCK(mpt);
1368                 return;
1369         }
1370
1371         /*
1372          * No data to transfer?
1373          * Just make a single simple SGL with zero length.
1374          */
1375
1376         if (mpt->verbose >= MPT_PRT_DEBUG) {
1377                 int tidx = ((char *)sglp) - mpt_off;
1378                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1379         }
1380
1381         if (nseg == 0) {
1382                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1383                 MPI_pSGE_SET_FLAGS(se1,
1384                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1385                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1386                 se1->FlagsLength = htole32(se1->FlagsLength);
1387                 goto out;
1388         }
1389
1390
1391         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1392         if (istgt == 0) {
1393                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1394                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1395                 }
1396         } else {
1397                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1398                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1399                 }
1400         }
1401
1402         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1403                 bus_dmasync_op_t op;
1404                 if (istgt == 0) {
1405                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1406                                 op = BUS_DMASYNC_PREREAD;
1407                         } else {
1408                                 op = BUS_DMASYNC_PREWRITE;
1409                         }
1410                 } else {
1411                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1412                                 op = BUS_DMASYNC_PREWRITE;
1413                         } else {
1414                                 op = BUS_DMASYNC_PREREAD;
1415                         }
1416                 }
1417                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1418         }
1419
1420         /*
1421          * Okay, fill in what we can at the end of the command frame.
1422          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1423          * the command frame.
1424          *
1425          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1426          * SIMPLE64 pointers and start doing CHAIN64 entries after
1427          * that.
1428          */
1429
1430         if (nseg < MPT_NSGL_FIRST(mpt)) {
1431                 first_lim = nseg;
1432         } else {
1433                 /*
1434                  * Leave room for CHAIN element
1435                  */
1436                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1437         }
1438
1439         se = (SGE_SIMPLE64 *) sglp;
1440         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1441                 uint32_t tf;
1442
1443                 memset(se, 0, sizeof (*se));
1444                 se->Address.Low = htole32(dm_segs->ds_addr & 0xffffffff);
1445                 if (sizeof(bus_addr_t) > 4) {
1446                         se->Address.High =
1447                             htole32(((uint64_t)dm_segs->ds_addr) >> 32);
1448                 }
1449                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1450                 tf = flags;
1451                 if (seg == first_lim - 1) {
1452                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1453                 }
1454                 if (seg == nseg - 1) {
1455                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1456                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1457                 }
1458                 MPI_pSGE_SET_FLAGS(se, tf);
1459                 se->FlagsLength = htole32(se->FlagsLength);
1460         }
1461
1462         if (seg == nseg) {
1463                 goto out;
1464         }
1465
1466         /*
1467          * Tell the IOC where to find the first chain element.
1468          */
1469         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1470         nxt_off = MPT_RQSL(mpt);
1471         trq = req;
1472
1473         /*
1474          * Make up the rest of the data segments out of a chain element
1475          * (contiained in the current request frame) which points to
1476          * SIMPLE64 elements in the next request frame, possibly ending
1477          * with *another* chain element (if there's more).
1478          */
1479         while (seg < nseg) {
1480                 int this_seg_lim;
1481                 uint32_t tf, cur_off;
1482                 bus_addr_t chain_list_addr;
1483
1484                 /*
1485                  * Point to the chain descriptor. Note that the chain
1486                  * descriptor is at the end of the *previous* list (whether
1487                  * chain or simple).
1488                  */
1489                 ce = (SGE_CHAIN64 *) se;
1490
1491                 /*
1492                  * Before we change our current pointer, make  sure we won't
1493                  * overflow the request area with this frame. Note that we
1494                  * test against 'greater than' here as it's okay in this case
1495                  * to have next offset be just outside the request area.
1496                  */
1497                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1498                         nxt_off = MPT_REQUEST_AREA;
1499                         goto next_chain;
1500                 }
1501
1502                 /*
1503                  * Set our SGE element pointer to the beginning of the chain
1504                  * list and update our next chain list offset.
1505                  */
1506                 se = (SGE_SIMPLE64 *) &mpt_off[nxt_off];
1507                 cur_off = nxt_off;
1508                 nxt_off += MPT_RQSL(mpt);
1509
1510                 /*
1511                  * Now initialized the chain descriptor.
1512                  */
1513                 memset(ce, 0, sizeof (*ce));
1514
1515                 /*
1516                  * Get the physical address of the chain list.
1517                  */
1518                 chain_list_addr = trq->req_pbuf;
1519                 chain_list_addr += cur_off;
1520                 if (sizeof (bus_addr_t) > 4) {
1521                         ce->Address.High =
1522                             htole32(((uint64_t)chain_list_addr) >> 32);
1523                 }
1524                 ce->Address.Low = htole32(chain_list_addr & 0xffffffff);
1525                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT |
1526                             MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1527
1528                 /*
1529                  * If we have more than a frame's worth of segments left,
1530                  * set up the chain list to have the last element be another
1531                  * chain descriptor.
1532                  */
1533                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1534                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1535                         /*
1536                          * The length of the chain is the length in bytes of the
1537                          * number of segments plus the next chain element.
1538                          *
1539                          * The next chain descriptor offset is the length,
1540                          * in words, of the number of segments.
1541                          */
1542                         ce->Length = (this_seg_lim - seg) *
1543                             sizeof (SGE_SIMPLE64);
1544                         ce->NextChainOffset = ce->Length >> 2;
1545                         ce->Length += sizeof (SGE_CHAIN64);
1546                 } else {
1547                         this_seg_lim = nseg;
1548                         ce->Length = (this_seg_lim - seg) *
1549                             sizeof (SGE_SIMPLE64);
1550                 }
1551                 ce->Length = htole16(ce->Length);
1552
1553                 /*
1554                  * Fill in the chain list SGE elements with our segment data.
1555                  *
1556                  * If we're the last element in this chain list, set the last
1557                  * element flag. If we're the completely last element period,
1558                  * set the end of list and end of buffer flags.
1559                  */
1560                 while (seg < this_seg_lim) {
1561                         memset(se, 0, sizeof (*se));
1562                         se->Address.Low = htole32(dm_segs->ds_addr &
1563                             0xffffffff);
1564                         if (sizeof (bus_addr_t) > 4) {
1565                                 se->Address.High =
1566                                     htole32(((uint64_t)dm_segs->ds_addr) >> 32);
1567                         }
1568                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1569                         tf = flags;
1570                         if (seg ==  this_seg_lim - 1) {
1571                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1572                         }
1573                         if (seg == nseg - 1) {
1574                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1575                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1576                         }
1577                         MPI_pSGE_SET_FLAGS(se, tf);
1578                         se->FlagsLength = htole32(se->FlagsLength);
1579                         se++;
1580                         seg++;
1581                         dm_segs++;
1582                 }
1583
1584     next_chain:
1585                 /*
1586                  * If we have more segments to do and we've used up all of
1587                  * the space in a request area, go allocate another one
1588                  * and chain to that.
1589                  */
1590                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1591                         request_t *nrq;
1592
1593                         CAMLOCK_2_MPTLOCK(mpt);
1594                         nrq = mpt_get_request(mpt, FALSE);
1595                         MPTLOCK_2_CAMLOCK(mpt);
1596
1597                         if (nrq == NULL) {
1598                                 error = ENOMEM;
1599                                 goto bad;
1600                         }
1601
1602                         /*
1603                          * Append the new request area on the tail of our list.
1604                          */
1605                         if ((trq = req->chain) == NULL) {
1606                                 req->chain = nrq;
1607                         } else {
1608                                 while (trq->chain != NULL) {
1609                                         trq = trq->chain;
1610                                 }
1611                                 trq->chain = nrq;
1612                         }
1613                         trq = nrq;
1614                         mpt_off = trq->req_vbuf;
1615                         if (mpt->verbose >= MPT_PRT_DEBUG) {
1616                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
1617                         }
1618                         nxt_off = 0;
1619                 }
1620         }
1621 out:
1622
1623         /*
1624          * Last time we need to check if this CCB needs to be aborted.
1625          */
1626         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1627                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1628                         request_t *cmd_req =
1629                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1630                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1631                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1632                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1633                 }
1634                 mpt_prt(mpt,
1635                     "mpt_execute_req_a64: I/O cancelled (status 0x%x)\n",
1636                     ccb->ccb_h.status & CAM_STATUS_MASK);
1637                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
1638                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
1639                 }
1640                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1641                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1642                 xpt_done(ccb);
1643                 CAMLOCK_2_MPTLOCK(mpt);
1644                 mpt_free_request(mpt, req);
1645                 MPTLOCK_2_CAMLOCK(mpt);
1646                 return;
1647         }
1648
1649         ccb->ccb_h.status |= CAM_SIM_QUEUED;
1650         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
1651                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
1652                     mpt_timeout, ccb);
1653         }
1654         if (mpt->verbose > MPT_PRT_DEBUG) {
1655                 int nc = 0;
1656                 mpt_print_request(req->req_vbuf);
1657                 for (trq = req->chain; trq; trq = trq->chain) {
1658                         printf("  Additional Chain Area %d\n", nc++);
1659                         mpt_dump_sgl(trq->req_vbuf, 0);
1660                 }
1661         }
1662
1663         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1664                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1665                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
1666 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
1667                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
1668                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
1669                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
1670                 } else {
1671                         tgt->state = TGT_STATE_MOVING_DATA;
1672                 }
1673 #else
1674                 tgt->state = TGT_STATE_MOVING_DATA;
1675 #endif
1676         }
1677         CAMLOCK_2_MPTLOCK(mpt);
1678         mpt_send_cmd(mpt, req);
1679         MPTLOCK_2_CAMLOCK(mpt);
1680 }
1681
1682 static void
1683 mpt_execute_req(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1684 {
1685         request_t *req, *trq;
1686         char *mpt_off;
1687         union ccb *ccb;
1688         struct mpt_softc *mpt;
1689         int seg, first_lim;
1690         uint32_t flags, nxt_off;
1691         void *sglp = NULL;
1692         MSG_REQUEST_HEADER *hdrp;
1693         SGE_SIMPLE32 *se;
1694         SGE_CHAIN32 *ce;
1695         int istgt = 0;
1696
1697         req = (request_t *)arg;
1698         ccb = req->ccb;
1699
1700         mpt = ccb->ccb_h.ccb_mpt_ptr;
1701         req = ccb->ccb_h.ccb_req_ptr;
1702
1703         hdrp = req->req_vbuf;
1704         mpt_off = req->req_vbuf;
1705
1706
1707         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1708                 error = EFBIG;
1709         }
1710
1711         if (error == 0) {
1712                 switch (hdrp->Function) {
1713                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1714                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1715                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1716                         break;
1717                 case MPI_FUNCTION_TARGET_ASSIST:
1718                         istgt = 1;
1719                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1720                         break;
1721                 default:
1722                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req\n",
1723                             hdrp->Function);
1724                         error = EINVAL;
1725                         break;
1726                 }
1727         }
1728
1729         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1730                 error = EFBIG;
1731                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1732                     nseg, mpt->max_seg_cnt);
1733         }
1734
1735 bad:
1736         if (error != 0) {
1737                 if (error != EFBIG && error != ENOMEM) {
1738                         mpt_prt(mpt, "mpt_execute_req: err %d\n", error);
1739                 }
1740                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1741                         cam_status status;
1742                         mpt_freeze_ccb(ccb);
1743                         if (error == EFBIG) {
1744                                 status = CAM_REQ_TOO_BIG;
1745                         } else if (error == ENOMEM) {
1746                                 if (mpt->outofbeer == 0) {
1747                                         mpt->outofbeer = 1;
1748                                         xpt_freeze_simq(mpt->sim, 1);
1749                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1750                                             "FREEZEQ\n");
1751                                 }
1752                                 status = CAM_REQUEUE_REQ;
1753                         } else {
1754                                 status = CAM_REQ_CMP_ERR;
1755                         }
1756                         mpt_set_ccb_status(ccb, status);
1757                 }
1758                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1759                         request_t *cmd_req =
1760                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1761                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1762                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1763                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1764                 }
1765                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1766                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1767                 xpt_done(ccb);
1768                 CAMLOCK_2_MPTLOCK(mpt);
1769                 mpt_free_request(mpt, req);
1770                 MPTLOCK_2_CAMLOCK(mpt);
1771                 return;
1772         }
1773
1774         /*
1775          * No data to transfer?
1776          * Just make a single simple SGL with zero length.
1777          */
1778
1779         if (mpt->verbose >= MPT_PRT_DEBUG) {
1780                 int tidx = ((char *)sglp) - mpt_off;
1781                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1782         }
1783
1784         if (nseg == 0) {
1785                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1786                 MPI_pSGE_SET_FLAGS(se1,
1787                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1788                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1789                 se1->FlagsLength = htole32(se1->FlagsLength);
1790                 goto out;
1791         }
1792
1793
1794         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
1795         if (istgt == 0) {
1796                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1797                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1798                 }
1799         } else {
1800                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1801                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1802                 }
1803         }
1804
1805         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1806                 bus_dmasync_op_t op;
1807                 if (istgt) {
1808                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1809                                 op = BUS_DMASYNC_PREREAD;
1810                         } else {
1811                                 op = BUS_DMASYNC_PREWRITE;
1812                         }
1813                 } else {
1814                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1815                                 op = BUS_DMASYNC_PREWRITE;
1816                         } else {
1817                                 op = BUS_DMASYNC_PREREAD;
1818                         }
1819                 }
1820                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1821         }
1822
1823         /*
1824          * Okay, fill in what we can at the end of the command frame.
1825          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1826          * the command frame.
1827          *
1828          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1829          * SIMPLE32 pointers and start doing CHAIN32 entries after
1830          * that.
1831          */
1832
1833         if (nseg < MPT_NSGL_FIRST(mpt)) {
1834                 first_lim = nseg;
1835         } else {
1836                 /*
1837                  * Leave room for CHAIN element
1838                  */
1839                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1840         }
1841
1842         se = (SGE_SIMPLE32 *) sglp;
1843         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1844                 uint32_t tf;
1845
1846                 memset(se, 0,sizeof (*se));
1847                 se->Address = htole32(dm_segs->ds_addr);
1848
1849
1850
1851                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1852                 tf = flags;
1853                 if (seg == first_lim - 1) {
1854                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1855                 }
1856                 if (seg == nseg - 1) {
1857                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1858                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1859                 }
1860                 MPI_pSGE_SET_FLAGS(se, tf);
1861                 se->FlagsLength = htole32(se->FlagsLength);
1862         }
1863
1864         if (seg == nseg) {
1865                 goto out;
1866         }
1867
1868         /*
1869          * Tell the IOC where to find the first chain element.
1870          */
1871         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1872         nxt_off = MPT_RQSL(mpt);
1873         trq = req;
1874
1875         /*
1876          * Make up the rest of the data segments out of a chain element
1877          * (contiained in the current request frame) which points to
1878          * SIMPLE32 elements in the next request frame, possibly ending
1879          * with *another* chain element (if there's more).
1880          */
1881         while (seg < nseg) {
1882                 int this_seg_lim;
1883                 uint32_t tf, cur_off;
1884                 bus_addr_t chain_list_addr;
1885
1886                 /*
1887                  * Point to the chain descriptor. Note that the chain
1888                  * descriptor is at the end of the *previous* list (whether
1889                  * chain or simple).
1890                  */
1891                 ce = (SGE_CHAIN32 *) se;
1892
1893                 /*
1894                  * Before we change our current pointer, make  sure we won't
1895                  * overflow the request area with this frame. Note that we
1896                  * test against 'greater than' here as it's okay in this case
1897                  * to have next offset be just outside the request area.
1898                  */
1899                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1900                         nxt_off = MPT_REQUEST_AREA;
1901                         goto next_chain;
1902                 }
1903
1904                 /*
1905                  * Set our SGE element pointer to the beginning of the chain
1906                  * list and update our next chain list offset.
1907                  */
1908                 se = (SGE_SIMPLE32 *) &mpt_off[nxt_off];
1909                 cur_off = nxt_off;
1910                 nxt_off += MPT_RQSL(mpt);
1911
1912                 /*
1913                  * Now initialized the chain descriptor.
1914                  */
1915                 memset(ce, 0, sizeof (*ce));
1916
1917                 /*
1918                  * Get the physical address of the chain list.
1919                  */
1920                 chain_list_addr = trq->req_pbuf;
1921                 chain_list_addr += cur_off;
1922
1923
1924
1925                 ce->Address = htole32(chain_list_addr);
1926                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
1927
1928
1929                 /*
1930                  * If we have more than a frame's worth of segments left,
1931                  * set up the chain list to have the last element be another
1932                  * chain descriptor.
1933                  */
1934                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1935                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1936                         /*
1937                          * The length of the chain is the length in bytes of the
1938                          * number of segments plus the next chain element.
1939                          *
1940                          * The next chain descriptor offset is the length,
1941                          * in words, of the number of segments.
1942                          */
1943                         ce->Length = (this_seg_lim - seg) *
1944                             sizeof (SGE_SIMPLE32);
1945                         ce->NextChainOffset = ce->Length >> 2;
1946                         ce->Length += sizeof (SGE_CHAIN32);
1947                 } else {
1948                         this_seg_lim = nseg;
1949                         ce->Length = (this_seg_lim - seg) *
1950                             sizeof (SGE_SIMPLE32);
1951                 }
1952                 ce->Length = htole16(ce->Length);
1953
1954                 /*
1955                  * Fill in the chain list SGE elements with our segment data.
1956                  *
1957                  * If we're the last element in this chain list, set the last
1958                  * element flag. If we're the completely last element period,
1959                  * set the end of list and end of buffer flags.
1960                  */
1961                 while (seg < this_seg_lim) {
1962                         memset(se, 0, sizeof (*se));
1963                         se->Address = htole32(dm_segs->ds_addr);
1964
1965
1966
1967
1968                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1969                         tf = flags;
1970                         if (seg ==  this_seg_lim - 1) {
1971                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1972                         }
1973                         if (seg == nseg - 1) {
1974                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1975                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1976                         }
1977                         MPI_pSGE_SET_FLAGS(se, tf);
1978                         se->FlagsLength = htole32(se->FlagsLength);
1979                         se++;
1980                         seg++;
1981                         dm_segs++;
1982                 }
1983
1984     next_chain:
1985                 /*
1986                  * If we have more segments to do and we've used up all of
1987                  * the space in a request area, go allocate another one
1988                  * and chain to that.
1989                  */
1990                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1991                         request_t *nrq;
1992
1993                         CAMLOCK_2_MPTLOCK(mpt);
1994                         nrq = mpt_get_request(mpt, FALSE);
1995                         MPTLOCK_2_CAMLOCK(mpt);
1996
1997                         if (nrq == NULL) {
1998                                 error = ENOMEM;
1999                                 goto bad;
2000                         }
2001
2002                         /*
2003                          * Append the new request area on the tail of our list.
2004                          */
2005                         if ((trq = req->chain) == NULL) {
2006                                 req->chain = nrq;
2007                         } else {
2008                                 while (trq->chain != NULL) {
2009                                         trq = trq->chain;
2010                                 }
2011                                 trq->chain = nrq;
2012                         }
2013                         trq = nrq;
2014                         mpt_off = trq->req_vbuf;
2015                         if (mpt->verbose >= MPT_PRT_DEBUG) {
2016                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
2017                         }
2018                         nxt_off = 0;
2019                 }
2020         }
2021 out:
2022
2023         /*
2024          * Last time we need to check if this CCB needs to be aborted.
2025          */
2026         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2027                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2028                         request_t *cmd_req =
2029                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2030                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
2031                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
2032                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
2033                 }
2034                 mpt_prt(mpt,
2035                     "mpt_execute_req: I/O cancelled (status 0x%x)\n",
2036                     ccb->ccb_h.status & CAM_STATUS_MASK);
2037                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
2038                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2039                 }
2040                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2041                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
2042                 xpt_done(ccb);
2043                 CAMLOCK_2_MPTLOCK(mpt);
2044                 mpt_free_request(mpt, req);
2045                 MPTLOCK_2_CAMLOCK(mpt);
2046                 return;
2047         }
2048
2049         ccb->ccb_h.status |= CAM_SIM_QUEUED;
2050         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
2051                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
2052                     mpt_timeout, ccb);
2053         }
2054         if (mpt->verbose > MPT_PRT_DEBUG) {
2055                 int nc = 0;
2056                 mpt_print_request(req->req_vbuf);
2057                 for (trq = req->chain; trq; trq = trq->chain) {
2058                         printf("  Additional Chain Area %d\n", nc++);
2059                         mpt_dump_sgl(trq->req_vbuf, 0);
2060                 }
2061         }
2062
2063         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2064                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2065                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
2066 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
2067                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2068                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
2069                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
2070                 } else {
2071                         tgt->state = TGT_STATE_MOVING_DATA;
2072                 }
2073 #else
2074                 tgt->state = TGT_STATE_MOVING_DATA;
2075 #endif
2076         }
2077         CAMLOCK_2_MPTLOCK(mpt);
2078         mpt_send_cmd(mpt, req);
2079         MPTLOCK_2_CAMLOCK(mpt);
2080 }
2081
2082 static void
2083 mpt_start(struct cam_sim *sim, union ccb *ccb)
2084 {
2085         request_t *req;
2086         struct mpt_softc *mpt;
2087         MSG_SCSI_IO_REQUEST *mpt_req;
2088         struct ccb_scsiio *csio = &ccb->csio;
2089         struct ccb_hdr *ccbh = &ccb->ccb_h;
2090         bus_dmamap_callback_t *cb;
2091         target_id_t tgt;
2092         int raid_passthru;
2093
2094         /* Get the pointer for the physical addapter */
2095         mpt = ccb->ccb_h.ccb_mpt_ptr;
2096         raid_passthru = (sim == mpt->phydisk_sim);
2097
2098         CAMLOCK_2_MPTLOCK(mpt);
2099         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
2100                 if (mpt->outofbeer == 0) {
2101                         mpt->outofbeer = 1;
2102                         xpt_freeze_simq(mpt->sim, 1);
2103                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
2104                 }
2105                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2106                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
2107                 MPTLOCK_2_CAMLOCK(mpt);
2108                 xpt_done(ccb);
2109                 return;
2110         }
2111 #ifdef  INVARIANTS
2112         mpt_req_not_spcl(mpt, req, "mpt_start", __LINE__);
2113 #endif
2114         MPTLOCK_2_CAMLOCK(mpt);
2115
2116         if (sizeof (bus_addr_t) > 4) {
2117                 cb = mpt_execute_req_a64;
2118         } else {
2119                 cb = mpt_execute_req;
2120         }
2121
2122         /*
2123          * Link the ccb and the request structure so we can find
2124          * the other knowing either the request or the ccb
2125          */
2126         req->ccb = ccb;
2127         ccb->ccb_h.ccb_req_ptr = req;
2128
2129         /* Now we build the command for the IOC */
2130         mpt_req = req->req_vbuf;
2131         memset(mpt_req, 0, sizeof (MSG_SCSI_IO_REQUEST));
2132
2133         mpt_req->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2134         if (raid_passthru) {
2135                 mpt_req->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2136                 CAMLOCK_2_MPTLOCK(mpt);
2137                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
2138                         MPTLOCK_2_CAMLOCK(mpt);
2139                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2140                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
2141                         xpt_done(ccb);
2142                         return;
2143                 }
2144                 MPTLOCK_2_CAMLOCK(mpt);
2145                 mpt_req->Bus = 0;       /* we never set bus here */
2146         } else {
2147                 tgt = ccb->ccb_h.target_id;
2148                 mpt_req->Bus = 0;       /* XXX */
2149
2150         }
2151         mpt_req->SenseBufferLength =
2152                 (csio->sense_len < MPT_SENSE_SIZE) ?
2153                  csio->sense_len : MPT_SENSE_SIZE;
2154
2155         /*
2156          * We use the message context to find the request structure when we
2157          * Get the command completion interrupt from the IOC.
2158          */
2159         mpt_req->MsgContext = htole32(req->index | scsi_io_handler_id);
2160
2161         /* Which physical device to do the I/O on */
2162         mpt_req->TargetID = tgt;
2163
2164         /* We assume a single level LUN type */
2165         if (ccb->ccb_h.target_lun >= MPT_MAX_LUNS) {
2166                 mpt_req->LUN[0] = 0x40 | ((ccb->ccb_h.target_lun >> 8) & 0x3f);
2167                 mpt_req->LUN[1] = ccb->ccb_h.target_lun & 0xff;
2168         } else {
2169                 mpt_req->LUN[1] = ccb->ccb_h.target_lun;
2170         }
2171
2172         /* Set the direction of the transfer */
2173         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2174                 mpt_req->Control = MPI_SCSIIO_CONTROL_READ;
2175         } else if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2176                 mpt_req->Control = MPI_SCSIIO_CONTROL_WRITE;
2177         } else {
2178                 mpt_req->Control = MPI_SCSIIO_CONTROL_NODATATRANSFER;
2179         }
2180
2181         if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0) {
2182                 switch(ccb->csio.tag_action) {
2183                 case MSG_HEAD_OF_Q_TAG:
2184                         mpt_req->Control |= MPI_SCSIIO_CONTROL_HEADOFQ;
2185                         break;
2186                 case MSG_ACA_TASK:
2187                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ACAQ;
2188                         break;
2189                 case MSG_ORDERED_Q_TAG:
2190                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ORDEREDQ;
2191                         break;
2192                 case MSG_SIMPLE_Q_TAG:
2193                 default:
2194                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2195                         break;
2196                 }
2197         } else {
2198                 if (mpt->is_fc || mpt->is_sas) {
2199                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2200                 } else {
2201                         /* XXX No such thing for a target doing packetized. */
2202                         mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
2203                 }
2204         }
2205
2206         if (mpt->is_spi) {
2207                 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) {
2208                         mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT;
2209                 }
2210         }
2211         mpt_req->Control = htole32(mpt_req->Control);
2212
2213         /* Copy the scsi command block into place */
2214         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
2215                 bcopy(csio->cdb_io.cdb_ptr, mpt_req->CDB, csio->cdb_len);
2216         } else {
2217                 bcopy(csio->cdb_io.cdb_bytes, mpt_req->CDB, csio->cdb_len);
2218         }
2219
2220         mpt_req->CDBLength = csio->cdb_len;
2221         mpt_req->DataLength = htole32(csio->dxfer_len);
2222         mpt_req->SenseBufferLowAddr = htole32(req->sense_pbuf);
2223
2224         /*
2225          * Do a *short* print here if we're set to MPT_PRT_DEBUG
2226          */
2227         if (mpt->verbose == MPT_PRT_DEBUG) {
2228                 U32 df;
2229                 mpt_prt(mpt, "mpt_start: %s op 0x%x ",
2230                     (mpt_req->Function == MPI_FUNCTION_SCSI_IO_REQUEST)?
2231                     "SCSI_IO_REQUEST" : "SCSI_IO_PASSTHRU", mpt_req->CDB[0]);
2232                 df = mpt_req->Control & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
2233                 if (df != MPI_SCSIIO_CONTROL_NODATATRANSFER) {
2234                         mpt_prtc(mpt, "(%s %u byte%s ",
2235                             (df == MPI_SCSIIO_CONTROL_READ)?
2236                             "read" : "write",  csio->dxfer_len,
2237                             (csio->dxfer_len == 1)? ")" : "s)");
2238                 }
2239                 mpt_prtc(mpt, "tgt %u lun %u req %p:%u\n", tgt,
2240                     ccb->ccb_h.target_lun, req, req->serno);
2241         }
2242
2243         /*
2244          * If we have any data to send with this command map it into bus space.
2245          */
2246         if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2247                 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) {
2248                         /*
2249                          * We've been given a pointer to a single buffer.
2250                          */
2251                         if ((ccbh->flags & CAM_DATA_PHYS) == 0) {
2252                                 /*
2253                                  * Virtual address that needs to translated into
2254                                  * one or more physical address ranges.
2255                                  */
2256                                 int error;
2257                                 int s = splsoftvm();
2258                                 error = bus_dmamap_load(mpt->buffer_dmat,
2259                                     req->dmap, csio->data_ptr, csio->dxfer_len,
2260                                     cb, req, 0);
2261                                 splx(s);
2262                                 if (error == EINPROGRESS) {
2263                                         /*
2264                                          * So as to maintain ordering,
2265                                          * freeze the controller queue
2266                                          * until our mapping is
2267                                          * returned.
2268                                          */
2269                                         xpt_freeze_simq(mpt->sim, 1);
2270                                         ccbh->status |= CAM_RELEASE_SIMQ;
2271                                 }
2272                         } else {
2273                                 /*
2274                                  * We have been given a pointer to single
2275                                  * physical buffer.
2276                                  */
2277                                 struct bus_dma_segment seg;
2278                                 seg.ds_addr =
2279                                     (bus_addr_t)(vm_offset_t)csio->data_ptr;
2280                                 seg.ds_len = csio->dxfer_len;
2281                                 (*cb)(req, &seg, 1, 0);
2282                         }
2283                 } else {
2284                         /*
2285                          * We have been given a list of addresses.
2286                          * This case could be easily supported but they are not
2287                          * currently generated by the CAM subsystem so there
2288                          * is no point in wasting the time right now.
2289                          */
2290                         struct bus_dma_segment *segs;
2291                         if ((ccbh->flags & CAM_SG_LIST_PHYS) == 0) {
2292                                 (*cb)(req, NULL, 0, EFAULT);
2293                         } else {
2294                                 /* Just use the segments provided */
2295                                 segs = (struct bus_dma_segment *)csio->data_ptr;
2296                                 (*cb)(req, segs, csio->sglist_cnt, 0);
2297                         }
2298                 }
2299         } else {
2300                 (*cb)(req, NULL, 0, 0);
2301         }
2302 }
2303
2304 static int
2305 mpt_bus_reset(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun,
2306     int sleep_ok)
2307 {
2308         int   error;
2309         uint16_t status;
2310         uint8_t response;
2311
2312         error = mpt_scsi_send_tmf(mpt,
2313             (tgt != CAM_TARGET_WILDCARD || lun != CAM_LUN_WILDCARD) ?
2314             MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET :
2315             MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
2316             mpt->is_fc ? MPI_SCSITASKMGMT_MSGFLAGS_LIP_RESET_OPTION : 0,
2317             0,  /* XXX How do I get the channel ID? */
2318             tgt != CAM_TARGET_WILDCARD ? tgt : 0,
2319             lun != CAM_LUN_WILDCARD ? lun : 0,
2320             0, sleep_ok);
2321
2322         if (error != 0) {
2323                 /*
2324                  * mpt_scsi_send_tmf hard resets on failure, so no
2325                  * need to do so here.
2326                  */
2327                 mpt_prt(mpt,
2328                     "mpt_bus_reset: mpt_scsi_send_tmf returned %d\n", error);
2329                 return (EIO);
2330         }
2331
2332         /* Wait for bus reset to be processed by the IOC. */
2333         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
2334             REQ_STATE_DONE, sleep_ok, 5000);
2335
2336         status = le16toh(mpt->tmf_req->IOCStatus);
2337         response = mpt->tmf_req->ResponseCode;
2338         mpt->tmf_req->state = REQ_STATE_FREE;
2339
2340         if (error) {
2341                 mpt_prt(mpt, "mpt_bus_reset: Reset timed-out. "
2342                     "Resetting controller.\n");
2343                 mpt_reset(mpt, TRUE);
2344                 return (ETIMEDOUT);
2345         }
2346
2347         if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
2348                 mpt_prt(mpt, "mpt_bus_reset: TMF IOC Status 0x%x. "
2349                     "Resetting controller.\n", status);
2350                 mpt_reset(mpt, TRUE);
2351                 return (EIO);
2352         }
2353
2354         if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
2355             response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
2356                 mpt_prt(mpt, "mpt_bus_reset: TMF Response 0x%x. "
2357                     "Resetting controller.\n", response);
2358                 mpt_reset(mpt, TRUE);
2359                 return (EIO);
2360         }
2361         return (0);
2362 }
2363
2364 static int
2365 mpt_fc_reset_link(struct mpt_softc *mpt, int dowait)
2366 {
2367         int r = 0;
2368         request_t *req;
2369         PTR_MSG_FC_PRIMITIVE_SEND_REQUEST fc;
2370
2371         req = mpt_get_request(mpt, FALSE);
2372         if (req == NULL) {
2373                 return (ENOMEM);
2374         }
2375         fc = req->req_vbuf;
2376         memset(fc, 0, sizeof(*fc));
2377         fc->SendFlags = MPI_FC_PRIM_SEND_FLAGS_RESET_LINK;
2378         fc->Function = MPI_FUNCTION_FC_PRIMITIVE_SEND;
2379         fc->MsgContext = htole32(req->index | fc_els_handler_id);
2380         mpt_send_cmd(mpt, req);
2381         if (dowait) {
2382                 r = mpt_wait_req(mpt, req, REQ_STATE_DONE,
2383                     REQ_STATE_DONE, FALSE, 60 * 1000);
2384                 if (r == 0) {
2385                         mpt_free_request(mpt, req);
2386                 }
2387         }
2388         return (r);
2389 }
2390
2391 static int
2392 mpt_cam_event(struct mpt_softc *mpt, request_t *req,
2393               MSG_EVENT_NOTIFY_REPLY *msg)
2394 {
2395         uint32_t data0, data1;
2396
2397         data0 = le32toh(msg->Data[0]);
2398         data1 = le32toh(msg->Data[1]);
2399         switch(msg->Event & 0xFF) {
2400         case MPI_EVENT_UNIT_ATTENTION:
2401                 mpt_prt(mpt, "UNIT ATTENTION: Bus: 0x%02x TargetID: 0x%02x\n",
2402                     (data0 >> 8) & 0xff, data0 & 0xff);
2403                 break;
2404
2405         case MPI_EVENT_IOC_BUS_RESET:
2406                 /* We generated a bus reset */
2407                 mpt_prt(mpt, "IOC Generated Bus Reset Port: %d\n",
2408                     (data0 >> 8) & 0xff);
2409                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2410                 break;
2411
2412         case MPI_EVENT_EXT_BUS_RESET:
2413                 /* Someone else generated a bus reset */
2414                 mpt_prt(mpt, "External Bus Reset Detected\n");
2415                 /*
2416                  * These replies don't return EventData like the MPI
2417                  * spec says they do
2418                  */
2419                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2420                 break;
2421
2422         case MPI_EVENT_RESCAN:
2423 #if __FreeBSD_version >= 600000
2424         {
2425                 union ccb *ccb;
2426                 uint32_t pathid;
2427                 /*
2428                  * In general this means a device has been added to the loop.
2429                  */
2430                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2431                 if (mpt->ready == 0) {
2432                         break;
2433                 }
2434                 if (mpt->phydisk_sim) {
2435                         pathid = cam_sim_path(mpt->phydisk_sim);
2436                 } else {
2437                         pathid = cam_sim_path(mpt->sim);
2438                 }
2439                 MPTLOCK_2_CAMLOCK(mpt);
2440                 /*
2441                  * Allocate a CCB, create a wildcard path for this bus,
2442                  * and schedule a rescan.
2443                  */
2444                 ccb = xpt_alloc_ccb_nowait();
2445                 if (ccb == NULL) {
2446                         mpt_prt(mpt, "unable to alloc CCB for rescan\n");
2447                         CAMLOCK_2_MPTLOCK(mpt);
2448                         break;
2449                 }
2450
2451                 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, pathid,
2452                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2453                         CAMLOCK_2_MPTLOCK(mpt);
2454                         mpt_prt(mpt, "unable to create path for rescan\n");
2455                         xpt_free_ccb(ccb);
2456                         break;
2457                 }
2458                 xpt_rescan(ccb);
2459                 CAMLOCK_2_MPTLOCK(mpt);
2460                 break;
2461         }
2462 #else
2463                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2464                 break;
2465 #endif
2466         case MPI_EVENT_LINK_STATUS_CHANGE:
2467                 mpt_prt(mpt, "Port %d: LinkState: %s\n",
2468                     (data1 >> 8) & 0xff,
2469                     ((data0 & 0xff) == 0)?  "Failed" : "Active");
2470                 break;
2471
2472         case MPI_EVENT_LOOP_STATE_CHANGE:
2473                 switch ((data0 >> 16) & 0xff) {
2474                 case 0x01:
2475                         mpt_prt(mpt,
2476                             "Port 0x%x: FC LinkEvent: LIP(%02x,%02x) "
2477                             "(Loop Initialization)\n",
2478                             (data1 >> 8) & 0xff,
2479                             (data0 >> 8) & 0xff,
2480                             (data0     ) & 0xff);
2481                         switch ((data0 >> 8) & 0xff) {
2482                         case 0xF7:
2483                                 if ((data0 & 0xff) == 0xF7) {
2484                                         mpt_prt(mpt, "Device needs AL_PA\n");
2485                                 } else {
2486                                         mpt_prt(mpt, "Device %02x doesn't like "
2487                                             "FC performance\n",
2488                                             data0 & 0xFF);
2489                                 }
2490                                 break;
2491                         case 0xF8:
2492                                 if ((data0 & 0xff) == 0xF7) {
2493                                         mpt_prt(mpt, "Device had loop failure "
2494                                             "at its receiver prior to acquiring"
2495                                             " AL_PA\n");
2496                                 } else {
2497                                         mpt_prt(mpt, "Device %02x detected loop"
2498                                             " failure at its receiver\n",
2499                                             data0 & 0xFF);
2500                                 }
2501                                 break;
2502                         default:
2503                                 mpt_prt(mpt, "Device %02x requests that device "
2504                                     "%02x reset itself\n",
2505                                     data0 & 0xFF,
2506                                     (data0 >> 8) & 0xFF);
2507                                 break;
2508                         }
2509                         break;
2510                 case 0x02:
2511                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2512                             "LPE(%02x,%02x) (Loop Port Enable)\n",
2513                             (data1 >> 8) & 0xff, /* Port */
2514                             (data0 >>  8) & 0xff, /* Character 3 */
2515                             (data0      ) & 0xff  /* Character 4 */);
2516                         break;
2517                 case 0x03:
2518                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2519                             "LPB(%02x,%02x) (Loop Port Bypass)\n",
2520                             (data1 >> 8) & 0xff, /* Port */
2521                             (data0 >> 8) & 0xff, /* Character 3 */
2522                             (data0     ) & 0xff  /* Character 4 */);
2523                         break;
2524                 default:
2525                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: Unknown "
2526                             "FC event (%02x %02x %02x)\n",
2527                             (data1 >> 8) & 0xff, /* Port */
2528                             (data0 >> 16) & 0xff, /* Event */
2529                             (data0 >>  8) & 0xff, /* Character 3 */
2530                             (data0      ) & 0xff  /* Character 4 */);
2531                 }
2532                 break;
2533
2534         case MPI_EVENT_LOGOUT:
2535                 mpt_prt(mpt, "FC Logout Port: %d N_PortID: %02x\n",
2536                     (data1 >> 8) & 0xff, data0);
2537                 break;
2538         case MPI_EVENT_QUEUE_FULL:
2539         {
2540                 struct cam_sim *sim;
2541                 struct cam_path *tmppath;
2542                 struct ccb_relsim crs;
2543                 PTR_EVENT_DATA_QUEUE_FULL pqf;
2544                 lun_id_t lun_id;
2545
2546                 pqf = (PTR_EVENT_DATA_QUEUE_FULL)msg->Data;
2547                 pqf->CurrentDepth = le16toh(pqf->CurrentDepth);
2548                 mpt_prt(mpt, "QUEUE FULL EVENT: Bus 0x%02x Target 0x%02x Depth "
2549                     "%d\n", pqf->Bus, pqf->TargetID, pqf->CurrentDepth);
2550                 if (mpt->phydisk_sim) {
2551                         sim = mpt->phydisk_sim;
2552                 } else {
2553                         sim = mpt->sim;
2554                 }
2555                 MPTLOCK_2_CAMLOCK(mpt);
2556                 for (lun_id = 0; lun_id < MPT_MAX_LUNS; lun_id++) {
2557                         if (xpt_create_path(&tmppath, NULL, cam_sim_path(sim),
2558                             pqf->TargetID, lun_id) != CAM_REQ_CMP) {
2559                                 mpt_prt(mpt, "unable to create a path to send "
2560                                     "XPT_REL_SIMQ");
2561                                 CAMLOCK_2_MPTLOCK(mpt);
2562                                 break;
2563                         }
2564                         xpt_setup_ccb(&crs.ccb_h, tmppath, 5);
2565                         crs.ccb_h.func_code = XPT_REL_SIMQ;
2566                         crs.ccb_h.flags = CAM_DEV_QFREEZE;
2567                         crs.release_flags = RELSIM_ADJUST_OPENINGS;
2568                         crs.openings = pqf->CurrentDepth - 1;
2569                         xpt_action((union ccb *)&crs);
2570                         if (crs.ccb_h.status != CAM_REQ_CMP) {
2571                                 mpt_prt(mpt, "XPT_REL_SIMQ failed\n");
2572                         }
2573                         xpt_free_path(tmppath);
2574                 }
2575                 CAMLOCK_2_MPTLOCK(mpt);
2576                 break;
2577         }
2578         case MPI_EVENT_EVENT_CHANGE:
2579         case MPI_EVENT_INTEGRATED_RAID:
2580         case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
2581         case MPI_EVENT_SAS_SES:
2582                 break;
2583         default:
2584                 mpt_lprt(mpt, MPT_PRT_WARN, "mpt_cam_event: 0x%x\n",
2585                     msg->Event & 0xFF);
2586                 return (0);
2587         }
2588         return (1);
2589 }
2590
2591 /*
2592  * Reply path for all SCSI I/O requests, called from our
2593  * interrupt handler by extracting our handler index from
2594  * the MsgContext field of the reply from the IOC.
2595  *
2596  * This routine is optimized for the common case of a
2597  * completion without error.  All exception handling is
2598  * offloaded to non-inlined helper routines to minimize
2599  * cache footprint.
2600  */
2601 static int
2602 mpt_scsi_reply_handler(struct mpt_softc *mpt, request_t *req,
2603     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2604 {
2605         MSG_SCSI_IO_REQUEST *scsi_req;
2606         union ccb *ccb;
2607
2608         if (req->state == REQ_STATE_FREE) {
2609                 mpt_prt(mpt, "mpt_scsi_reply_handler: req already free\n");
2610                 return (TRUE);
2611         }
2612
2613         scsi_req = (MSG_SCSI_IO_REQUEST *)req->req_vbuf;
2614         ccb = req->ccb;
2615         if (ccb == NULL) {
2616                 mpt_prt(mpt, "mpt_scsi_reply_handler: req %p:%u with no ccb\n",
2617                     req, req->serno);
2618                 return (TRUE);
2619         }
2620
2621         mpt_req_untimeout(req, mpt_timeout, ccb);
2622         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2623
2624         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2625                 bus_dmasync_op_t op;
2626
2627                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
2628                         op = BUS_DMASYNC_POSTREAD;
2629                 else
2630                         op = BUS_DMASYNC_POSTWRITE;
2631                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
2632                 bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2633         }
2634
2635         if (reply_frame == NULL) {
2636                 /*
2637                  * Context only reply, completion without error status.
2638                  */
2639                 ccb->csio.resid = 0;
2640                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
2641                 ccb->csio.scsi_status = SCSI_STATUS_OK;
2642         } else {
2643                 mpt_scsi_reply_frame_handler(mpt, req, reply_frame);
2644         }
2645
2646         if (mpt->outofbeer) {
2647                 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2648                 mpt->outofbeer = 0;
2649                 mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
2650         }
2651         if (scsi_req->CDB[0] == INQUIRY && (scsi_req->CDB[1] & SI_EVPD) == 0) {
2652                 struct scsi_inquiry_data *iq =
2653                     (struct scsi_inquiry_data *)ccb->csio.data_ptr;
2654                 if (scsi_req->Function ==
2655                     MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
2656                         /*
2657                          * Fake out the device type so that only the
2658                          * pass-thru device will attach.
2659                          */
2660                         iq->device &= ~0x1F;
2661                         iq->device |= T_NODEVICE;
2662                 }
2663         }
2664         if (mpt->verbose == MPT_PRT_DEBUG) {
2665                 mpt_prt(mpt, "mpt_scsi_reply_handler: %p:%u complete\n",
2666                     req, req->serno);
2667         }
2668         KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
2669         MPTLOCK_2_CAMLOCK(mpt);
2670         xpt_done(ccb);
2671         CAMLOCK_2_MPTLOCK(mpt);
2672         if ((req->state & REQ_STATE_TIMEDOUT) == 0) {
2673                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2674         } else {
2675                 mpt_prt(mpt, "completing timedout/aborted req %p:%u\n",
2676                     req, req->serno);
2677                 TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
2678         }
2679         KASSERT((req->state & REQ_STATE_NEED_WAKEUP) == 0,
2680             ("CCB req needed wakeup"));
2681 #ifdef  INVARIANTS
2682         mpt_req_not_spcl(mpt, req, "mpt_scsi_reply_handler", __LINE__);
2683 #endif
2684         mpt_free_request(mpt, req);
2685         return (TRUE);
2686 }
2687
2688 static int
2689 mpt_scsi_tmf_reply_handler(struct mpt_softc *mpt, request_t *req,
2690     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2691 {
2692         MSG_SCSI_TASK_MGMT_REPLY *tmf_reply;
2693
2694         KASSERT(req == mpt->tmf_req, ("TMF Reply not using mpt->tmf_req"));
2695 #ifdef  INVARIANTS
2696         mpt_req_not_spcl(mpt, req, "mpt_scsi_tmf_reply_handler", __LINE__);
2697 #endif
2698         tmf_reply = (MSG_SCSI_TASK_MGMT_REPLY *)reply_frame;
2699         /* Record IOC Status and Response Code of TMF for any waiters. */
2700         req->IOCStatus = le16toh(tmf_reply->IOCStatus);
2701         req->ResponseCode = tmf_reply->ResponseCode;
2702
2703         mpt_lprt(mpt, MPT_PRT_DEBUG, "TMF complete: req %p:%u status 0x%x\n",
2704             req, req->serno, le16toh(tmf_reply->IOCStatus));
2705         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2706         if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
2707                 req->state |= REQ_STATE_DONE;
2708                 wakeup(req);
2709         } else {
2710                 mpt->tmf_req->state = REQ_STATE_FREE;
2711         }
2712         return (TRUE);
2713 }
2714
2715 /*
2716  * XXX: Move to definitions file
2717  */
2718 #define ELS     0x22
2719 #define FC4LS   0x32
2720 #define ABTS    0x81
2721 #define BA_ACC  0x84
2722
2723 #define LS_RJT  0x01
2724 #define LS_ACC  0x02
2725 #define PLOGI   0x03
2726 #define LOGO    0x05
2727 #define SRR     0x14
2728 #define PRLI    0x20
2729 #define PRLO    0x21
2730 #define ADISC   0x52
2731 #define RSCN    0x61
2732
2733 static void
2734 mpt_fc_els_send_response(struct mpt_softc *mpt, request_t *req,
2735     PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp, U8 length)
2736 {
2737         uint32_t fl;
2738         MSG_LINK_SERVICE_RSP_REQUEST tmp;
2739         PTR_MSG_LINK_SERVICE_RSP_REQUEST rsp;
2740
2741         /*
2742          * We are going to reuse the ELS request to send this response back.
2743          */
2744         rsp = &tmp;
2745         memset(rsp, 0, sizeof(*rsp));
2746
2747 #ifdef  USE_IMMEDIATE_LINK_DATA
2748         /*
2749          * Apparently the IMMEDIATE stuff doesn't seem to work.
2750          */
2751         rsp->RspFlags = LINK_SERVICE_RSP_FLAGS_IMMEDIATE;
2752 #endif
2753         rsp->RspLength = length;
2754         rsp->Function = MPI_FUNCTION_FC_LINK_SRVC_RSP;
2755         rsp->MsgContext = htole32(req->index | fc_els_handler_id);
2756
2757         /*
2758          * Copy over information from the original reply frame to
2759          * it's correct place in the response.
2760          */
2761         memcpy((U8 *)rsp + 0x0c, (U8 *)rp + 0x1c, 24);
2762
2763         /*
2764          * And now copy back the temporary area to the original frame.
2765          */
2766         memcpy(req->req_vbuf, rsp, sizeof (MSG_LINK_SERVICE_RSP_REQUEST));
2767         rsp = req->req_vbuf;
2768
2769 #ifdef  USE_IMMEDIATE_LINK_DATA
2770         memcpy((U8 *)&rsp->SGL, &((U8 *)req->req_vbuf)[MPT_RQSL(mpt)], length);
2771 #else
2772 {
2773         PTR_SGE_SIMPLE32 se = (PTR_SGE_SIMPLE32) &rsp->SGL;
2774         bus_addr_t paddr = req->req_pbuf;
2775         paddr += MPT_RQSL(mpt);
2776
2777         fl =
2778                 MPI_SGE_FLAGS_HOST_TO_IOC       |
2779                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
2780                 MPI_SGE_FLAGS_LAST_ELEMENT      |
2781                 MPI_SGE_FLAGS_END_OF_LIST       |
2782                 MPI_SGE_FLAGS_END_OF_BUFFER;
2783         fl <<= MPI_SGE_FLAGS_SHIFT;
2784         fl |= (length);
2785         se->FlagsLength = htole32(fl);
2786         se->Address = htole32((uint32_t) paddr);
2787 }
2788 #endif
2789
2790         /*
2791          * Send it on...
2792          */
2793         mpt_send_cmd(mpt, req);
2794 }
2795
2796 static int
2797 mpt_fc_els_reply_handler(struct mpt_softc *mpt, request_t *req,
2798     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2799 {
2800         PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp =
2801             (PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY) reply_frame;
2802         U8 rctl;
2803         U8 type;
2804         U8 cmd;
2805         U16 status = le16toh(reply_frame->IOCStatus);
2806         U32 *elsbuf;
2807         int ioindex;
2808         int do_refresh = TRUE;
2809
2810 #ifdef  INVARIANTS
2811         KASSERT(mpt_req_on_free_list(mpt, req) == 0,
2812             ("fc_els_reply_handler: req %p:%u for function %x on freelist!",
2813             req, req->serno, rp->Function));
2814         if (rp->Function != MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2815                 mpt_req_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2816         } else {
2817                 mpt_req_not_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2818         }
2819 #endif
2820         mpt_lprt(mpt, MPT_PRT_DEBUG,
2821             "FC_ELS Complete: req %p:%u, reply %p function %x\n",
2822             req, req->serno, reply_frame, reply_frame->Function);
2823
2824         if  (status != MPI_IOCSTATUS_SUCCESS) {
2825                 mpt_prt(mpt, "ELS REPLY STATUS 0x%x for Function %x\n",
2826                     status, reply_frame->Function);
2827                 if (status == MPI_IOCSTATUS_INVALID_STATE) {
2828                         /*
2829                          * XXX: to get around shutdown issue
2830                          */
2831                         mpt->disabled = 1;
2832                         return (TRUE);
2833                 }
2834                 return (TRUE);
2835         }
2836
2837         /*
2838          * If the function of a link service response, we recycle the
2839          * response to be a refresh for a new link service request.
2840          *
2841          * The request pointer is bogus in this case and we have to fetch
2842          * it based upon the TransactionContext.
2843          */
2844         if (rp->Function == MPI_FUNCTION_FC_LINK_SRVC_RSP) {
2845                 /* Freddie Uncle Charlie Katie */
2846                 /* We don't get the IOINDEX as part of the Link Svc Rsp */
2847                 for (ioindex = 0; ioindex < mpt->els_cmds_allocated; ioindex++)
2848                         if (mpt->els_cmd_ptrs[ioindex] == req) {
2849                                 break;
2850                         }
2851
2852                 KASSERT(ioindex < mpt->els_cmds_allocated,
2853                     ("can't find my mommie!"));
2854
2855                 /* remove from active list as we're going to re-post it */
2856                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2857                 req->state &= ~REQ_STATE_QUEUED;
2858                 req->state |= REQ_STATE_DONE;
2859                 mpt_fc_post_els(mpt, req, ioindex);
2860                 return (TRUE);
2861         }
2862
2863         if (rp->Function == MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2864                 /* remove from active list as we're done */
2865                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2866                 req->state &= ~REQ_STATE_QUEUED;
2867                 req->state |= REQ_STATE_DONE;
2868                 if (req->state & REQ_STATE_TIMEDOUT) {
2869                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2870                             "Sync Primitive Send Completed After Timeout\n");
2871                         mpt_free_request(mpt, req);
2872                 } else if ((req->state & REQ_STATE_NEED_WAKEUP) == 0) {
2873                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2874                             "Async Primitive Send Complete\n");
2875                         mpt_free_request(mpt, req);
2876                 } else {
2877                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2878                             "Sync Primitive Send Complete- Waking Waiter\n");
2879                         wakeup(req);
2880                 }
2881                 return (TRUE);
2882         }
2883
2884         if (rp->Function != MPI_FUNCTION_FC_LINK_SRVC_BUF_POST) {
2885                 mpt_prt(mpt, "unexpected ELS_REPLY: Function 0x%x Flags %x "
2886                     "Length %d Message Flags %x\n", rp->Function, rp->Flags,
2887                     rp->MsgLength, rp->MsgFlags);
2888                 return (TRUE);
2889         }
2890
2891         if (rp->MsgLength <= 5) {
2892                 /*
2893                  * This is just a ack of an original ELS buffer post
2894                  */
2895                 mpt_lprt(mpt, MPT_PRT_DEBUG,
2896                     "RECV'd ACK of FC_ELS buf post %p:%u\n", req, req->serno);
2897                 return (TRUE);
2898         }
2899
2900
2901         rctl = (le32toh(rp->Rctl_Did) & MPI_FC_RCTL_MASK) >> MPI_FC_RCTL_SHIFT;
2902         type = (le32toh(rp->Type_Fctl) & MPI_FC_TYPE_MASK) >> MPI_FC_TYPE_SHIFT;
2903
2904         elsbuf = &((U32 *)req->req_vbuf)[MPT_RQSL(mpt)/sizeof (U32)];
2905         cmd = be32toh(elsbuf[0]) >> 24;
2906
2907         if (rp->Flags & MPI_LS_BUF_POST_REPLY_FLAG_NO_RSP_NEEDED) {
2908                 mpt_lprt(mpt, MPT_PRT_ALWAYS, "ELS_REPLY: response unneeded\n");
2909                 return (TRUE);
2910         }
2911
2912         ioindex = le32toh(rp->TransactionContext);
2913         req = mpt->els_cmd_ptrs[ioindex];
2914
2915         if (rctl == ELS && type == 1) {
2916                 switch (cmd) {
2917                 case PRLI:
2918                         /*
2919                          * Send back a PRLI ACC
2920                          */
2921                         mpt_prt(mpt, "PRLI from 0x%08x%08x\n",
2922                             le32toh(rp->Wwn.PortNameHigh),
2923                             le32toh(rp->Wwn.PortNameLow));
2924                         elsbuf[0] = htobe32(0x02100014);
2925                         elsbuf[1] |= htobe32(0x00000100);
2926                         elsbuf[4] = htobe32(0x00000002);
2927                         if (mpt->role & MPT_ROLE_TARGET)
2928                                 elsbuf[4] |= htobe32(0x00000010);
2929                         if (mpt->role & MPT_ROLE_INITIATOR)
2930                                 elsbuf[4] |= htobe32(0x00000020);
2931                         /* remove from active list as we're done */
2932                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2933                         req->state &= ~REQ_STATE_QUEUED;
2934                         req->state |= REQ_STATE_DONE;
2935                         mpt_fc_els_send_response(mpt, req, rp, 20);
2936                         do_refresh = FALSE;
2937                         break;
2938                 case PRLO:
2939                         memset(elsbuf, 0, 5 * (sizeof (U32)));
2940                         elsbuf[0] = htobe32(0x02100014);
2941                         elsbuf[1] = htobe32(0x08000100);
2942                         mpt_prt(mpt, "PRLO from 0x%08x%08x\n",
2943                             le32toh(rp->Wwn.PortNameHigh),
2944                             le32toh(rp->Wwn.PortNameLow));
2945                         /* remove from active list as we're done */
2946                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2947                         req->state &= ~REQ_STATE_QUEUED;
2948                         req->state |= REQ_STATE_DONE;
2949                         mpt_fc_els_send_response(mpt, req, rp, 20);
2950                         do_refresh = FALSE;
2951                         break;
2952                 default:
2953                         mpt_prt(mpt, "ELS TYPE 1 COMMAND: %x\n", cmd);
2954                         break;
2955                 }
2956         } else if (rctl == ABTS && type == 0) {
2957                 uint16_t rx_id = le16toh(rp->Rxid);
2958                 uint16_t ox_id = le16toh(rp->Oxid);
2959                 request_t *tgt_req = NULL;
2960
2961                 mpt_prt(mpt,
2962                     "ELS: ABTS OX_ID 0x%x RX_ID 0x%x from 0x%08x%08x\n",
2963                     ox_id, rx_id, le32toh(rp->Wwn.PortNameHigh),
2964                     le32toh(rp->Wwn.PortNameLow));
2965                 if (rx_id >= mpt->mpt_max_tgtcmds) {
2966                         mpt_prt(mpt, "Bad RX_ID 0x%x\n", rx_id);
2967                 } else if (mpt->tgt_cmd_ptrs == NULL) {
2968                         mpt_prt(mpt, "No TGT CMD PTRS\n");
2969                 } else {
2970                         tgt_req = mpt->tgt_cmd_ptrs[rx_id];
2971                 }
2972                 if (tgt_req) {
2973                         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, tgt_req);
2974                         union ccb *ccb = tgt->ccb;
2975                         uint32_t ct_id;
2976
2977                         /*
2978                          * Check to make sure we have the correct command
2979                          * The reply descriptor in the target state should
2980                          * should contain an IoIndex that should match the
2981                          * RX_ID.
2982                          *
2983                          * It'd be nice to have OX_ID to crosscheck with
2984                          * as well.
2985                          */
2986                         ct_id = GET_IO_INDEX(tgt->reply_desc);
2987
2988                         if (ct_id != rx_id) {
2989                                 mpt_lprt(mpt, MPT_PRT_ERROR, "ABORT Mismatch: "
2990                                     "RX_ID received=0x%x; RX_ID in cmd=0x%x\n",
2991                                     rx_id, ct_id);
2992                                 goto skip;
2993                         }
2994
2995                         ccb = tgt->ccb;
2996                         if (ccb) {
2997                                 mpt_prt(mpt,
2998                                     "CCB (%p): lun %u flags %x status %x\n",
2999                                     ccb, ccb->ccb_h.target_lun,
3000                                     ccb->ccb_h.flags, ccb->ccb_h.status);
3001                         }
3002                         mpt_prt(mpt, "target state 0x%x resid %u xfrd %u rpwrd "
3003                             "%x nxfers %x\n", tgt->state,
3004                             tgt->resid, tgt->bytes_xfered, tgt->reply_desc,
3005                             tgt->nxfers);
3006   skip:
3007                         if (mpt_abort_target_cmd(mpt, tgt_req)) {
3008                                 mpt_prt(mpt, "unable to start TargetAbort\n");
3009                         }
3010                 } else {
3011                         mpt_prt(mpt, "no back pointer for RX_ID 0x%x\n", rx_id);
3012                 }
3013                 memset(elsbuf, 0, 5 * (sizeof (U32)));
3014                 elsbuf[0] = htobe32(0);
3015                 elsbuf[1] = htobe32((ox_id << 16) | rx_id);
3016                 elsbuf[2] = htobe32(0x000ffff);
3017                 /*
3018                  * Dork with the reply frame so that the reponse to it
3019                  * will be correct.
3020                  */
3021                 rp->Rctl_Did += ((BA_ACC - ABTS) << MPI_FC_RCTL_SHIFT);
3022                 /* remove from active list as we're done */
3023                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3024                 req->state &= ~REQ_STATE_QUEUED;
3025                 req->state |= REQ_STATE_DONE;
3026                 mpt_fc_els_send_response(mpt, req, rp, 12);
3027                 do_refresh = FALSE;
3028         } else {
3029                 mpt_prt(mpt, "ELS: RCTL %x TYPE %x CMD %x\n", rctl, type, cmd);
3030         }
3031         if (do_refresh == TRUE) {
3032                 /* remove from active list as we're done */
3033                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3034                 req->state &= ~REQ_STATE_QUEUED;
3035                 req->state |= REQ_STATE_DONE;
3036                 mpt_fc_post_els(mpt, req, ioindex);
3037         }
3038         return (TRUE);
3039 }
3040
3041 /*
3042  * Clean up all SCSI Initiator personality state in response
3043  * to a controller reset.
3044  */
3045 static void
3046 mpt_cam_ioc_reset(struct mpt_softc *mpt, int type)
3047 {
3048         /*
3049          * The pending list is already run down by
3050          * the generic handler.  Perform the same
3051          * operation on the timed out request list.
3052          */
3053         mpt_complete_request_chain(mpt, &mpt->request_timeout_list,
3054                                    MPI_IOCSTATUS_INVALID_STATE);
3055
3056         /*
3057          * XXX: We need to repost ELS and Target Command Buffers?
3058          */
3059
3060         /*
3061          * Inform the XPT that a bus reset has occurred.
3062          */
3063         xpt_async(AC_BUS_RESET, mpt->path, NULL);
3064 }
3065
3066 /*
3067  * Parse additional completion information in the reply
3068  * frame for SCSI I/O requests.
3069  */
3070 static int
3071 mpt_scsi_reply_frame_handler(struct mpt_softc *mpt, request_t *req,
3072                              MSG_DEFAULT_REPLY *reply_frame)
3073 {
3074         union ccb *ccb;
3075         MSG_SCSI_IO_REPLY *scsi_io_reply;
3076         u_int ioc_status;
3077         u_int sstate;
3078
3079         MPT_DUMP_REPLY_FRAME(mpt, reply_frame);
3080         KASSERT(reply_frame->Function == MPI_FUNCTION_SCSI_IO_REQUEST
3081              || reply_frame->Function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH,
3082                 ("MPT SCSI I/O Handler called with incorrect reply type"));
3083         KASSERT((reply_frame->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY) == 0,
3084                 ("MPT SCSI I/O Handler called with continuation reply"));
3085
3086         scsi_io_reply = (MSG_SCSI_IO_REPLY *)reply_frame;
3087         ioc_status = le16toh(scsi_io_reply->IOCStatus);
3088         ioc_status &= MPI_IOCSTATUS_MASK;
3089         sstate = scsi_io_reply->SCSIState;
3090
3091         ccb = req->ccb;
3092         ccb->csio.resid =
3093             ccb->csio.dxfer_len - le32toh(scsi_io_reply->TransferCount);
3094
3095         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_VALID) != 0
3096          && (ccb->ccb_h.flags & (CAM_SENSE_PHYS | CAM_SENSE_PTR)) == 0) {
3097                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
3098                 ccb->csio.sense_resid =
3099                     ccb->csio.sense_len - le32toh(scsi_io_reply->SenseCount);
3100                 bcopy(req->sense_vbuf, &ccb->csio.sense_data,
3101                     min(ccb->csio.sense_len,
3102                     le32toh(scsi_io_reply->SenseCount)));
3103         }
3104
3105         if ((sstate & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) != 0) {
3106                 /*
3107                  * Tag messages rejected, but non-tagged retry
3108                  * was successful.
3109 XXXX
3110                 mpt_set_tags(mpt, devinfo, MPT_QUEUE_NONE);
3111                  */
3112         }
3113
3114         switch(ioc_status) {
3115         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3116                 /*
3117                  * XXX
3118                  * Linux driver indicates that a zero
3119                  * transfer length with this error code
3120                  * indicates a CRC error.
3121                  *
3122                  * No need to swap the bytes for checking
3123                  * against zero.
3124                  */
3125                 if (scsi_io_reply->TransferCount == 0) {
3126                         mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3127                         break;
3128                 }
3129                 /* FALLTHROUGH */
3130         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
3131         case MPI_IOCSTATUS_SUCCESS:
3132         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:
3133                 if ((sstate & MPI_SCSI_STATE_NO_SCSI_STATUS) != 0) {
3134                         /*
3135                          * Status was never returned for this transaction.
3136                          */
3137                         mpt_set_ccb_status(ccb, CAM_UNEXP_BUSFREE);
3138                 } else if (scsi_io_reply->SCSIStatus != SCSI_STATUS_OK) {
3139                         ccb->csio.scsi_status = scsi_io_reply->SCSIStatus;
3140                         mpt_set_ccb_status(ccb, CAM_SCSI_STATUS_ERROR);
3141                         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_FAILED) != 0)
3142                                 mpt_set_ccb_status(ccb, CAM_AUTOSENSE_FAIL);
3143                 } else if ((sstate & MPI_SCSI_STATE_RESPONSE_INFO_VALID) != 0) {
3144
3145                         /* XXX Handle SPI-Packet and FCP-2 reponse info. */
3146                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3147                 } else
3148                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3149                 break;
3150         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
3151                 mpt_set_ccb_status(ccb, CAM_DATA_RUN_ERR);
3152                 break;
3153         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
3154                 mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3155                 break;
3156         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3157                 /*
3158                  * Since selection timeouts and "device really not
3159                  * there" are grouped into this error code, report
3160                  * selection timeout.  Selection timeouts are
3161                  * typically retried before giving up on the device
3162                  * whereas "device not there" errors are considered
3163                  * unretryable.
3164                  */
3165                 mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3166                 break;
3167         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3168                 mpt_set_ccb_status(ccb, CAM_SEQUENCE_FAIL);
3169                 break;
3170         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
3171                 mpt_set_ccb_status(ccb, CAM_PATH_INVALID);
3172                 break;
3173         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
3174                 mpt_set_ccb_status(ccb, CAM_TID_INVALID);
3175                 break;
3176         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3177                 ccb->ccb_h.status = CAM_UA_TERMIO;
3178                 break;
3179         case MPI_IOCSTATUS_INVALID_STATE:
3180                 /*
3181                  * The IOC has been reset.  Emulate a bus reset.
3182                  */
3183                 /* FALLTHROUGH */
3184         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
3185                 ccb->ccb_h.status = CAM_SCSI_BUS_RESET;
3186                 break;
3187         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
3188         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
3189                 /*
3190                  * Don't clobber any timeout status that has
3191                  * already been set for this transaction.  We
3192                  * want the SCSI layer to be able to differentiate
3193                  * between the command we aborted due to timeout
3194                  * and any innocent bystanders.
3195                  */
3196                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG)
3197                         break;
3198                 mpt_set_ccb_status(ccb, CAM_REQ_TERMIO);
3199                 break;
3200
3201         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
3202                 mpt_set_ccb_status(ccb, CAM_RESRC_UNAVAIL);
3203                 break;
3204         case MPI_IOCSTATUS_BUSY:
3205                 mpt_set_ccb_status(ccb, CAM_BUSY);
3206                 break;
3207         case MPI_IOCSTATUS_INVALID_FUNCTION:
3208         case MPI_IOCSTATUS_INVALID_SGL:
3209         case MPI_IOCSTATUS_INTERNAL_ERROR:
3210         case MPI_IOCSTATUS_INVALID_FIELD:
3211         default:
3212                 /* XXX
3213                  * Some of the above may need to kick
3214                  * of a recovery action!!!!
3215                  */
3216                 ccb->ccb_h.status = CAM_UNREC_HBA_ERROR;
3217                 break;
3218         }
3219
3220         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3221                 mpt_freeze_ccb(ccb);
3222         }
3223
3224         return (TRUE);
3225 }
3226
3227 static void
3228 mpt_action(struct cam_sim *sim, union ccb *ccb)
3229 {
3230         struct mpt_softc *mpt;
3231         struct ccb_trans_settings *cts;
3232         target_id_t tgt;
3233         lun_id_t lun;
3234         int raid_passthru;
3235
3236         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("mpt_action\n"));
3237
3238         mpt = (struct mpt_softc *)cam_sim_softc(sim);
3239         raid_passthru = (sim == mpt->phydisk_sim);
3240         MPT_LOCK_ASSERT(mpt);
3241
3242         tgt = ccb->ccb_h.target_id;
3243         lun = ccb->ccb_h.target_lun;
3244         if (raid_passthru &&
3245             ccb->ccb_h.func_code != XPT_PATH_INQ &&
3246             ccb->ccb_h.func_code != XPT_RESET_BUS &&
3247             ccb->ccb_h.func_code != XPT_RESET_DEV) {
3248                 CAMLOCK_2_MPTLOCK(mpt);
3249                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
3250                         MPTLOCK_2_CAMLOCK(mpt);
3251                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3252                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
3253                         xpt_done(ccb);
3254                         return;
3255                 }
3256                 MPTLOCK_2_CAMLOCK(mpt);
3257         }
3258         ccb->ccb_h.ccb_mpt_ptr = mpt;
3259
3260         switch (ccb->ccb_h.func_code) {
3261         case XPT_SCSI_IO:       /* Execute the requested I/O operation */
3262                 /*
3263                  * Do a couple of preliminary checks...
3264                  */
3265                 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
3266                         if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
3267                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3268                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3269                                 break;
3270                         }
3271                 }
3272                 /* Max supported CDB length is 16 bytes */
3273                 /* XXX Unless we implement the new 32byte message type */
3274                 if (ccb->csio.cdb_len >
3275                     sizeof (((PTR_MSG_SCSI_IO_REQUEST)0)->CDB)) {
3276                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3277                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3278                         break;
3279                 }
3280 #ifdef  MPT_TEST_MULTIPATH
3281                 if (mpt->failure_id == ccb->ccb_h.target_id) {
3282                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3283                         mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3284                         break;
3285                 }
3286 #endif
3287                 ccb->csio.scsi_status = SCSI_STATUS_OK;
3288                 mpt_start(sim, ccb);
3289                 return;
3290
3291         case XPT_RESET_BUS:
3292                 if (raid_passthru) {
3293                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3294                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3295                         break;
3296                 }
3297         case XPT_RESET_DEV:
3298                 if (ccb->ccb_h.func_code == XPT_RESET_BUS) {
3299                         if (bootverbose) {
3300                                 xpt_print(ccb->ccb_h.path, "reset bus\n");
3301                         }
3302                 } else {
3303                         xpt_print(ccb->ccb_h.path, "reset device\n");
3304                 }
3305                 CAMLOCK_2_MPTLOCK(mpt);
3306                 (void) mpt_bus_reset(mpt, tgt, lun, FALSE);
3307                 MPTLOCK_2_CAMLOCK(mpt);
3308
3309                 /*
3310                  * mpt_bus_reset is always successful in that it
3311                  * will fall back to a hard reset should a bus
3312                  * reset attempt fail.
3313                  */
3314                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3315                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3316                 break;
3317
3318         case XPT_ABORT:
3319         {
3320                 union ccb *accb = ccb->cab.abort_ccb;
3321                 CAMLOCK_2_MPTLOCK(mpt);
3322                 switch (accb->ccb_h.func_code) {
3323                 case XPT_ACCEPT_TARGET_IO:
3324                 case XPT_IMMED_NOTIFY:
3325                         ccb->ccb_h.status = mpt_abort_target_ccb(mpt, ccb);
3326                         break;
3327                 case XPT_CONT_TARGET_IO:
3328                         mpt_prt(mpt, "cannot abort active CTIOs yet\n");
3329                         ccb->ccb_h.status = CAM_UA_ABORT;
3330                         break;
3331                 case XPT_SCSI_IO:
3332                         ccb->ccb_h.status = CAM_UA_ABORT;
3333                         break;
3334                 default:
3335                         ccb->ccb_h.status = CAM_REQ_INVALID;
3336                         break;
3337                 }
3338                 MPTLOCK_2_CAMLOCK(mpt);
3339                 break;
3340         }
3341
3342 #ifdef  CAM_NEW_TRAN_CODE
3343 #define IS_CURRENT_SETTINGS(c)  ((c)->type == CTS_TYPE_CURRENT_SETTINGS)
3344 #else
3345 #define IS_CURRENT_SETTINGS(c)  ((c)->flags & CCB_TRANS_CURRENT_SETTINGS)
3346 #endif
3347 #define DP_DISC_ENABLE  0x1
3348 #define DP_DISC_DISABL  0x2
3349 #define DP_DISC         (DP_DISC_ENABLE|DP_DISC_DISABL)
3350
3351 #define DP_TQING_ENABLE 0x4
3352 #define DP_TQING_DISABL 0x8
3353 #define DP_TQING        (DP_TQING_ENABLE|DP_TQING_DISABL)
3354
3355 #define DP_WIDE         0x10
3356 #define DP_NARROW       0x20
3357 #define DP_WIDTH        (DP_WIDE|DP_NARROW)
3358
3359 #define DP_SYNC         0x40
3360
3361         case XPT_SET_TRAN_SETTINGS:     /* Nexus Settings */
3362         {
3363 #ifdef  CAM_NEW_TRAN_CODE
3364                 struct ccb_trans_settings_scsi *scsi;
3365                 struct ccb_trans_settings_spi *spi;
3366 #endif
3367                 uint8_t dval;
3368                 u_int period;
3369                 u_int offset;
3370                 int i, j;
3371
3372                 cts = &ccb->cts;
3373
3374                 if (mpt->is_fc || mpt->is_sas) {
3375                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3376                         break;
3377                 }
3378
3379 #ifdef  CAM_NEW_TRAN_CODE
3380                 scsi = &cts->proto_specific.scsi;
3381                 spi = &cts->xport_specific.spi;
3382
3383                 /*
3384                  * We can be called just to valid transport and proto versions
3385                  */
3386                 if (scsi->valid == 0 && spi->valid == 0) {
3387                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3388                         break;
3389                 }
3390 #endif
3391
3392                 /*
3393                  * Skip attempting settings on RAID volume disks.
3394                  * Other devices on the bus get the normal treatment.
3395                  */
3396                 if (mpt->phydisk_sim && raid_passthru == 0 &&
3397                     mpt_is_raid_volume(mpt, tgt) != 0) {
3398                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3399                             "no transfer settings for RAID vols\n");
3400                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3401                         break;
3402                 }
3403
3404                 i = mpt->mpt_port_page2.PortSettings &
3405                     MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
3406                 j = mpt->mpt_port_page2.PortFlags &
3407                     MPI_SCSIPORTPAGE2_PORT_FLAGS_DV_MASK;
3408                 if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS &&
3409                     j == MPI_SCSIPORTPAGE2_PORT_FLAGS_OFF_DV) {
3410                         mpt_lprt(mpt, MPT_PRT_ALWAYS,
3411                             "honoring BIOS transfer negotiations\n");
3412                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3413                         break;
3414                 }
3415
3416                 dval = 0;
3417                 period = 0;
3418                 offset = 0;
3419
3420 #ifndef CAM_NEW_TRAN_CODE
3421                 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
3422                         dval |= (cts->flags & CCB_TRANS_DISC_ENB) ?
3423                             DP_DISC_ENABLE : DP_DISC_DISABL;
3424                 }
3425
3426                 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
3427                         dval |= (cts->flags & CCB_TRANS_TAG_ENB) ?
3428                             DP_TQING_ENABLE : DP_TQING_DISABL;
3429                 }
3430
3431                 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
3432                         dval |= cts->bus_width ? DP_WIDE : DP_NARROW;
3433                 }
3434
3435                 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) &&
3436                     (cts->valid & CCB_TRANS_SYNC_OFFSET_VALID)) {
3437                         dval |= DP_SYNC;
3438                         period = cts->sync_period;
3439                         offset = cts->sync_offset;
3440                 }
3441 #else
3442                 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
3443                         dval |= ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) ?
3444                             DP_DISC_ENABLE : DP_DISC_DISABL;
3445                 }
3446
3447                 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
3448                         dval |= ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) ?
3449                             DP_TQING_ENABLE : DP_TQING_DISABL;
3450                 }
3451
3452                 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
3453                         dval |= (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT) ?
3454                             DP_WIDE : DP_NARROW;
3455                 }
3456
3457                 if (spi->valid & CTS_SPI_VALID_SYNC_OFFSET) {
3458                         dval |= DP_SYNC;
3459                         offset = spi->sync_offset;
3460                 } else {
3461                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3462                             &mpt->mpt_dev_page1[tgt];
3463                         offset = ptr->RequestedParameters;
3464                         offset &= MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3465                         offset >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3466                 }
3467                 if (spi->valid & CTS_SPI_VALID_SYNC_RATE) {
3468                         dval |= DP_SYNC;
3469                         period = spi->sync_period;
3470                 } else {
3471                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3472                             &mpt->mpt_dev_page1[tgt];
3473                         period = ptr->RequestedParameters;
3474                         period &= MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3475                         period >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3476                 }
3477 #endif
3478                 CAMLOCK_2_MPTLOCK(mpt);
3479                 if (dval & DP_DISC_ENABLE) {
3480                         mpt->mpt_disc_enable |= (1 << tgt);
3481                 } else if (dval & DP_DISC_DISABL) {
3482                         mpt->mpt_disc_enable &= ~(1 << tgt);
3483                 }
3484                 if (dval & DP_TQING_ENABLE) {
3485                         mpt->mpt_tag_enable |= (1 << tgt);
3486                 } else if (dval & DP_TQING_DISABL) {
3487                         mpt->mpt_tag_enable &= ~(1 << tgt);
3488                 }
3489                 if (dval & DP_WIDTH) {
3490                         mpt_setwidth(mpt, tgt, 1);
3491                 }
3492                 if (dval & DP_SYNC) {
3493                         mpt_setsync(mpt, tgt, period, offset);
3494                 }
3495                 if (dval == 0) {
3496                         MPTLOCK_2_CAMLOCK(mpt);
3497                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3498                         break;
3499                 }
3500                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3501                     "set [%d]: 0x%x period 0x%x offset %d\n",
3502                     tgt, dval, period, offset);
3503                 if (mpt_update_spi_config(mpt, tgt)) {
3504                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3505                 } else {
3506                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3507                 }
3508                 MPTLOCK_2_CAMLOCK(mpt);
3509                 break;
3510         }
3511         case XPT_GET_TRAN_SETTINGS:
3512         {
3513 #ifdef  CAM_NEW_TRAN_CODE
3514                 struct ccb_trans_settings_scsi *scsi;
3515                 cts = &ccb->cts;
3516                 cts->protocol = PROTO_SCSI;
3517                 if (mpt->is_fc) {
3518                         struct ccb_trans_settings_fc *fc =
3519                             &cts->xport_specific.fc;
3520                         cts->protocol_version = SCSI_REV_SPC;
3521                         cts->transport = XPORT_FC;
3522                         cts->transport_version = 0;
3523                         fc->valid = CTS_FC_VALID_SPEED;
3524                         fc->bitrate = 100000;
3525                 } else if (mpt->is_sas) {
3526                         struct ccb_trans_settings_sas *sas =
3527                             &cts->xport_specific.sas;
3528                         cts->protocol_version = SCSI_REV_SPC2;
3529                         cts->transport = XPORT_SAS;
3530                         cts->transport_version = 0;
3531                         sas->valid = CTS_SAS_VALID_SPEED;
3532                         sas->bitrate = 300000;
3533                 } else {
3534                         cts->protocol_version = SCSI_REV_2;
3535                         cts->transport = XPORT_SPI;
3536                         cts->transport_version = 2;
3537                         if (mpt_get_spi_settings(mpt, cts) != 0) {
3538                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3539                                 break;
3540                         }
3541                 }
3542                 scsi = &cts->proto_specific.scsi;
3543                 scsi->valid = CTS_SCSI_VALID_TQ;
3544                 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3545 #else
3546                 cts = &ccb->cts;
3547                 if (mpt->is_fc) {
3548                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3549                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3550                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3551                 } else if (mpt->is_sas) {
3552                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3553                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3554                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3555                 } else if (mpt_get_spi_settings(mpt, cts) != 0) {
3556                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3557                         break;
3558                 }
3559 #endif
3560                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3561                 break;
3562         }
3563         case XPT_CALC_GEOMETRY:
3564         {
3565                 struct ccb_calc_geometry *ccg;
3566
3567                 ccg = &ccb->ccg;
3568                 if (ccg->block_size == 0) {
3569                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3570                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3571                         break;
3572                 }
3573                 mpt_calc_geometry(ccg, /*extended*/1);
3574                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
3575                 break;
3576         }
3577         case XPT_PATH_INQ:              /* Path routing inquiry */
3578         {
3579                 struct ccb_pathinq *cpi = &ccb->cpi;
3580
3581                 cpi->version_num = 1;
3582                 cpi->target_sprt = 0;
3583                 cpi->hba_eng_cnt = 0;
3584                 cpi->max_target = mpt->port_facts[0].MaxDevices - 1;
3585                 /*
3586                  * FC cards report MAX_DEVICES of 512, but
3587                  * the MSG_SCSI_IO_REQUEST target id field
3588                  * is only 8 bits. Until we fix the driver
3589                  * to support 'channels' for bus overflow,
3590                  * just limit it.
3591                  */
3592                 if (cpi->max_target > 255) {
3593                         cpi->max_target = 255;
3594                 }
3595
3596                 /*
3597                  * VMware ESX reports > 16 devices and then dies when we probe.
3598                  */
3599                 if (mpt->is_spi && cpi->max_target > 15) {
3600                         cpi->max_target = 15;
3601                 }
3602                 if (mpt->is_spi)
3603                         cpi->max_lun = 7;
3604                 else
3605                         cpi->max_lun = MPT_MAX_LUNS;
3606                 cpi->initiator_id = mpt->mpt_ini_id;
3607                 cpi->bus_id = cam_sim_bus(sim);
3608
3609                 /*
3610                  * The base speed is the speed of the underlying connection.
3611                  */
3612 #ifdef  CAM_NEW_TRAN_CODE
3613                 cpi->protocol = PROTO_SCSI;
3614                 if (mpt->is_fc) {
3615                         cpi->hba_misc = PIM_NOBUSRESET;
3616                         cpi->base_transfer_speed = 100000;
3617                         cpi->hba_inquiry = PI_TAG_ABLE;
3618                         cpi->transport = XPORT_FC;
3619                         cpi->transport_version = 0;
3620                         cpi->protocol_version = SCSI_REV_SPC;
3621                 } else if (mpt->is_sas) {
3622                         cpi->hba_misc = PIM_NOBUSRESET;
3623                         cpi->base_transfer_speed = 300000;
3624                         cpi->hba_inquiry = PI_TAG_ABLE;
3625                         cpi->transport = XPORT_SAS;
3626                         cpi->transport_version = 0;
3627                         cpi->protocol_version = SCSI_REV_SPC2;
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                         cpi->transport = XPORT_SPI;
3633                         cpi->transport_version = 2;
3634                         cpi->protocol_version = SCSI_REV_2;
3635                 }
3636 #else
3637                 if (mpt->is_fc) {
3638                         cpi->hba_misc = PIM_NOBUSRESET;
3639                         cpi->base_transfer_speed = 100000;
3640                         cpi->hba_inquiry = PI_TAG_ABLE;
3641                 } else if (mpt->is_sas) {
3642                         cpi->hba_misc = PIM_NOBUSRESET;
3643                         cpi->base_transfer_speed = 300000;
3644                         cpi->hba_inquiry = PI_TAG_ABLE;
3645                 } else {
3646                         cpi->hba_misc = PIM_SEQSCAN;
3647                         cpi->base_transfer_speed = 3300;
3648                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3649                 }
3650 #endif
3651
3652                 /*
3653                  * We give our fake RAID passhtru bus a width that is MaxVolumes
3654                  * wide and restrict it to one lun.
3655                  */
3656                 if (raid_passthru) {
3657                         cpi->max_target = mpt->ioc_page2->MaxPhysDisks - 1;
3658                         cpi->initiator_id = cpi->max_target + 1;
3659                         cpi->max_lun = 0;
3660                 }
3661
3662                 if ((mpt->role & MPT_ROLE_INITIATOR) == 0) {
3663                         cpi->hba_misc |= PIM_NOINITIATOR;
3664                 }
3665                 if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
3666                         cpi->target_sprt =
3667                             PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
3668                 } else {
3669                         cpi->target_sprt = 0;
3670                 }
3671                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3672                 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
3673                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3674                 cpi->unit_number = cam_sim_unit(sim);
3675                 cpi->ccb_h.status = CAM_REQ_CMP;
3676                 break;
3677         }
3678         case XPT_EN_LUN:                /* Enable LUN as a target */
3679         {
3680                 int result;
3681
3682                 CAMLOCK_2_MPTLOCK(mpt);
3683                 if (ccb->cel.enable)
3684                         result = mpt_enable_lun(mpt,
3685                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3686                 else
3687                         result = mpt_disable_lun(mpt,
3688                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3689                 MPTLOCK_2_CAMLOCK(mpt);
3690                 if (result == 0) {
3691                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3692                 } else {
3693                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3694                 }
3695                 break;
3696         }
3697         case XPT_NOTIFY_ACK:            /* recycle notify ack */
3698         case XPT_IMMED_NOTIFY:          /* Add Immediate Notify Resource */
3699         case XPT_ACCEPT_TARGET_IO:      /* Add Accept Target IO Resource */
3700         {
3701                 tgt_resource_t *trtp;
3702                 lun_id_t lun = ccb->ccb_h.target_lun;
3703                 ccb->ccb_h.sim_priv.entries[0].field = 0;
3704                 ccb->ccb_h.sim_priv.entries[1].ptr = mpt;
3705                 ccb->ccb_h.flags = 0;
3706
3707                 if (lun == CAM_LUN_WILDCARD) {
3708                         if (ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
3709                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3710                                 break;
3711                         }
3712                         trtp = &mpt->trt_wildcard;
3713                 } else if (lun >= MPT_MAX_LUNS) {
3714                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3715                         break;
3716                 } else {
3717                         trtp = &mpt->trt[lun];
3718                 }
3719                 CAMLOCK_2_MPTLOCK(mpt);
3720                 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
3721                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3722                             "Put FREE ATIO %p lun %d\n", ccb, lun);
3723                         STAILQ_INSERT_TAIL(&trtp->atios, &ccb->ccb_h,
3724                             sim_links.stqe);
3725                 } else if (ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
3726                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3727                             "Put FREE INOT lun %d\n", lun);
3728                         STAILQ_INSERT_TAIL(&trtp->inots, &ccb->ccb_h,
3729                             sim_links.stqe);
3730                 } else {
3731                         mpt_lprt(mpt, MPT_PRT_ALWAYS, "Got Notify ACK\n");
3732                 }
3733                 mpt_set_ccb_status(ccb, CAM_REQ_INPROG);
3734                 MPTLOCK_2_CAMLOCK(mpt);
3735                 return;
3736         }
3737         case XPT_CONT_TARGET_IO:
3738                 CAMLOCK_2_MPTLOCK(mpt);
3739                 mpt_target_start_io(mpt, ccb);
3740                 MPTLOCK_2_CAMLOCK(mpt);
3741                 return;
3742
3743         default:
3744                 ccb->ccb_h.status = CAM_REQ_INVALID;
3745                 break;
3746         }
3747         xpt_done(ccb);
3748 }
3749
3750 static int
3751 mpt_get_spi_settings(struct mpt_softc *mpt, struct ccb_trans_settings *cts)
3752 {
3753 #ifdef  CAM_NEW_TRAN_CODE
3754         struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3755         struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3756 #endif
3757         target_id_t tgt;
3758         uint32_t dval, pval, oval;
3759         int rv;
3760
3761         if (IS_CURRENT_SETTINGS(cts) == 0) {
3762                 tgt = cts->ccb_h.target_id;
3763         } else if (xpt_path_sim(cts->ccb_h.path) == mpt->phydisk_sim) {
3764                 if (mpt_map_physdisk(mpt, (union ccb *)cts, &tgt)) {
3765                         return (-1);
3766                 }
3767         } else {
3768                 tgt = cts->ccb_h.target_id;
3769         }
3770
3771         /*
3772          * We aren't looking at Port Page 2 BIOS settings here-
3773          * sometimes these have been known to be bogus XXX.
3774          *
3775          * For user settings, we pick the max from port page 0
3776          *
3777          * For current settings we read the current settings out from
3778          * device page 0 for that target.
3779          */
3780         if (IS_CURRENT_SETTINGS(cts)) {
3781                 CONFIG_PAGE_SCSI_DEVICE_0 tmp;
3782                 dval = 0;
3783
3784                 CAMLOCK_2_MPTLOCK(mpt);
3785                 tmp = mpt->mpt_dev_page0[tgt];
3786                 rv = mpt_read_cur_cfg_page(mpt, tgt, &tmp.Header,
3787                     sizeof(tmp), FALSE, 5000);
3788                 if (rv) {
3789                         MPTLOCK_2_CAMLOCK(mpt);
3790                         mpt_prt(mpt, "can't get tgt %d config page 0\n", tgt);
3791                         return (rv);
3792                 }
3793                 mpt2host_config_page_scsi_device_0(&tmp);
3794
3795                 MPTLOCK_2_CAMLOCK(mpt);
3796                 mpt_lprt(mpt, MPT_PRT_DEBUG,
3797                     "mpt_get_spi_settings[%d]: current NP %x Info %x\n", tgt,
3798                     tmp.NegotiatedParameters, tmp.Information);
3799                 dval |= (tmp.NegotiatedParameters & MPI_SCSIDEVPAGE0_NP_WIDE) ?
3800                     DP_WIDE : DP_NARROW;
3801                 dval |= (mpt->mpt_disc_enable & (1 << tgt)) ?
3802                     DP_DISC_ENABLE : DP_DISC_DISABL;
3803                 dval |= (mpt->mpt_tag_enable & (1 << tgt)) ?
3804                     DP_TQING_ENABLE : DP_TQING_DISABL;
3805                 oval = tmp.NegotiatedParameters;
3806                 oval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK;
3807                 oval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
3808                 pval = tmp.NegotiatedParameters;
3809                 pval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK;
3810                 pval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
3811                 mpt->mpt_dev_page0[tgt] = tmp;
3812         } else {
3813                 dval = DP_WIDE|DP_DISC_ENABLE|DP_TQING_ENABLE|DP_SYNC;
3814                 oval = mpt->mpt_port_page0.Capabilities;
3815                 oval = MPI_SCSIPORTPAGE0_CAP_GET_MAX_SYNC_OFFSET(oval);
3816                 pval = mpt->mpt_port_page0.Capabilities;
3817                 pval = MPI_SCSIPORTPAGE0_CAP_GET_MIN_SYNC_PERIOD(pval);
3818         }
3819
3820 #ifndef CAM_NEW_TRAN_CODE
3821         cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
3822         cts->valid = 0;
3823         cts->sync_period = pval;
3824         cts->sync_offset = oval;
3825         cts->valid |= CCB_TRANS_SYNC_RATE_VALID;
3826         cts->valid |= CCB_TRANS_SYNC_OFFSET_VALID;
3827         cts->valid |= CCB_TRANS_BUS_WIDTH_VALID;
3828         if (dval & DP_WIDE) {
3829                 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3830         } else {
3831                 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3832         }
3833         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3834                 cts->valid |= CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3835                 if (dval & DP_DISC_ENABLE) {
3836                         cts->flags |= CCB_TRANS_DISC_ENB;
3837                 }
3838                 if (dval & DP_TQING_ENABLE) {
3839                         cts->flags |= CCB_TRANS_TAG_ENB;
3840                 }
3841         }
3842 #else
3843         spi->valid = 0;
3844         scsi->valid = 0;
3845         spi->flags = 0;
3846         scsi->flags = 0;
3847         spi->sync_offset = oval;
3848         spi->sync_period = pval;
3849         spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3850         spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3851         spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
3852         if (dval & DP_WIDE) {
3853                 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3854         } else {
3855                 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3856         }
3857         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3858                 scsi->valid = CTS_SCSI_VALID_TQ;
3859                 if (dval & DP_TQING_ENABLE) {
3860                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3861                 }
3862                 spi->valid |= CTS_SPI_VALID_DISC;
3863                 if (dval & DP_DISC_ENABLE) {
3864                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3865                 }
3866         }
3867 #endif
3868         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3869             "mpt_get_spi_settings[%d]: %s flags 0x%x per 0x%x off=%d\n", tgt,
3870             IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM ", dval, pval, oval);
3871         return (0);
3872 }
3873
3874 static void
3875 mpt_setwidth(struct mpt_softc *mpt, int tgt, int onoff)
3876 {
3877         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3878
3879         ptr = &mpt->mpt_dev_page1[tgt];
3880         if (onoff) {
3881                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_WIDE;
3882         } else {
3883                 ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_WIDE;
3884         }
3885 }
3886
3887 static void
3888 mpt_setsync(struct mpt_softc *mpt, int tgt, int period, int offset)
3889 {
3890         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3891
3892         ptr = &mpt->mpt_dev_page1[tgt];
3893         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3894         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3895         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_DT;
3896         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_QAS;
3897         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_IU;
3898         if (period == 0) {
3899                 return;
3900         }
3901         ptr->RequestedParameters |=
3902             period << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3903         ptr->RequestedParameters |=
3904             offset << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3905         if (period < 0xa) {
3906                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_DT;
3907         }
3908         if (period < 0x9) {
3909                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_QAS;
3910                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_IU;
3911         }
3912 }
3913
3914 static int
3915 mpt_update_spi_config(struct mpt_softc *mpt, int tgt)
3916 {
3917         CONFIG_PAGE_SCSI_DEVICE_1 tmp;
3918         int rv;
3919
3920         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3921             "mpt_update_spi_config[%d].page1: Requested Params 0x%08x\n",
3922             tgt, mpt->mpt_dev_page1[tgt].RequestedParameters);
3923         tmp = mpt->mpt_dev_page1[tgt];
3924         host2mpt_config_page_scsi_device_1(&tmp);
3925         rv = mpt_write_cur_cfg_page(mpt, tgt,
3926             &tmp.Header, sizeof(tmp), FALSE, 5000);
3927         if (rv) {
3928                 mpt_prt(mpt, "mpt_update_spi_config: write cur page failed\n");
3929                 return (-1);
3930         }
3931         return (0);
3932 }
3933
3934 static void
3935 mpt_calc_geometry(struct ccb_calc_geometry *ccg, int extended)
3936 {
3937 #if __FreeBSD_version >= 500000
3938         cam_calc_geometry(ccg, extended);
3939 #else
3940         uint32_t size_mb;
3941         uint32_t secs_per_cylinder;
3942
3943         if (ccg->block_size == 0) {
3944                 ccg->ccb_h.status = CAM_REQ_INVALID;
3945                 return;
3946         }
3947         size_mb = ccg->volume_size / ((1024L * 1024L) / ccg->block_size);
3948         if (size_mb > 1024 && extended) {
3949                 ccg->heads = 255;
3950                 ccg->secs_per_track = 63;
3951         } else {
3952                 ccg->heads = 64;
3953                 ccg->secs_per_track = 32;
3954         }
3955         secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3956         ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3957         ccg->ccb_h.status = CAM_REQ_CMP;
3958 #endif
3959 }
3960
3961 /****************************** Timeout Recovery ******************************/
3962 static int
3963 mpt_spawn_recovery_thread(struct mpt_softc *mpt)
3964 {
3965         int error;
3966
3967         error = mpt_kthread_create(mpt_recovery_thread, mpt,
3968             &mpt->recovery_thread, /*flags*/0,
3969             /*altstack*/0, "mpt_recovery%d", mpt->unit);
3970         return (error);
3971 }
3972
3973 static void
3974 mpt_terminate_recovery_thread(struct mpt_softc *mpt)
3975 {
3976         if (mpt->recovery_thread == NULL) {
3977                 return;
3978         }
3979         mpt->shutdwn_recovery = 1;
3980         wakeup(mpt);
3981         /*
3982          * Sleep on a slightly different location
3983          * for this interlock just for added safety.
3984          */
3985         mpt_sleep(mpt, &mpt->recovery_thread, PUSER, "thtrm", 0);
3986 }
3987
3988 static void
3989 mpt_recovery_thread(void *arg)
3990 {
3991         struct mpt_softc *mpt;
3992
3993         mpt = (struct mpt_softc *)arg;
3994         MPT_LOCK(mpt);
3995         for (;;) {
3996                 if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
3997                         if (mpt->shutdwn_recovery == 0) {
3998                                 mpt_sleep(mpt, mpt, PUSER, "idle", 0);
3999                         }
4000                 }
4001                 if (mpt->shutdwn_recovery != 0) {
4002                         break;
4003                 }
4004                 mpt_recover_commands(mpt);
4005         }
4006         mpt->recovery_thread = NULL;
4007         wakeup(&mpt->recovery_thread);
4008         MPT_UNLOCK(mpt);
4009         mpt_kthread_exit(0);
4010 }
4011
4012 static int
4013 mpt_scsi_send_tmf(struct mpt_softc *mpt, u_int type, u_int flags,
4014     u_int channel, u_int target, u_int lun, u_int abort_ctx, int sleep_ok)
4015 {
4016         MSG_SCSI_TASK_MGMT *tmf_req;
4017         int                 error;
4018
4019         /*
4020          * Wait for any current TMF request to complete.
4021          * We're only allowed to issue one TMF at a time.
4022          */
4023         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_FREE, REQ_STATE_FREE,
4024             sleep_ok, MPT_TMF_MAX_TIMEOUT);
4025         if (error != 0) {
4026                 mpt_reset(mpt, TRUE);
4027                 return (ETIMEDOUT);
4028         }
4029
4030         mpt_assign_serno(mpt, mpt->tmf_req);
4031         mpt->tmf_req->state = REQ_STATE_ALLOCATED|REQ_STATE_QUEUED;
4032
4033         tmf_req = (MSG_SCSI_TASK_MGMT *)mpt->tmf_req->req_vbuf;
4034         memset(tmf_req, 0, sizeof(*tmf_req));
4035         tmf_req->TargetID = target;
4036         tmf_req->Bus = channel;
4037         tmf_req->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
4038         tmf_req->TaskType = type;
4039         tmf_req->MsgFlags = flags;
4040         tmf_req->MsgContext =
4041             htole32(mpt->tmf_req->index | scsi_tmf_handler_id);
4042         if (lun > MPT_MAX_LUNS) {
4043                 tmf_req->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4044                 tmf_req->LUN[1] = lun & 0xff;
4045         } else {
4046                 tmf_req->LUN[1] = lun;
4047         }
4048         tmf_req->TaskMsgContext = abort_ctx;
4049
4050         mpt_lprt(mpt, MPT_PRT_DEBUG,
4051             "Issuing TMF %p:%u with MsgContext of 0x%x\n", mpt->tmf_req,
4052             mpt->tmf_req->serno, tmf_req->MsgContext);
4053         if (mpt->verbose > MPT_PRT_DEBUG) {
4054                 mpt_print_request(tmf_req);
4055         }
4056
4057         KASSERT(mpt_req_on_pending_list(mpt, mpt->tmf_req) == 0,
4058             ("mpt_scsi_send_tmf: tmf_req already on pending list"));
4059         TAILQ_INSERT_HEAD(&mpt->request_pending_list, mpt->tmf_req, links);
4060         error = mpt_send_handshake_cmd(mpt, sizeof(*tmf_req), tmf_req);
4061         if (error != MPT_OK) {
4062                 TAILQ_REMOVE(&mpt->request_pending_list, mpt->tmf_req, links);
4063                 mpt->tmf_req->state = REQ_STATE_FREE;
4064                 mpt_reset(mpt, TRUE);
4065         }
4066         return (error);
4067 }
4068
4069 /*
4070  * When a command times out, it is placed on the requeust_timeout_list
4071  * and we wake our recovery thread.  The MPT-Fusion architecture supports
4072  * only a single TMF operation at a time, so we serially abort/bdr, etc,
4073  * the timedout transactions.  The next TMF is issued either by the
4074  * completion handler of the current TMF waking our recovery thread,
4075  * or the TMF timeout handler causing a hard reset sequence.
4076  */
4077 static void
4078 mpt_recover_commands(struct mpt_softc *mpt)
4079 {
4080         request_t          *req;
4081         union ccb          *ccb;
4082         int                 error;
4083
4084         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4085                 /*
4086                  * No work to do- leave.
4087                  */
4088                 mpt_prt(mpt, "mpt_recover_commands: no requests.\n");
4089                 return;
4090         }
4091
4092         /*
4093          * Flush any commands whose completion coincides with their timeout.
4094          */
4095         mpt_intr(mpt);
4096
4097         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4098                 /*
4099                  * The timedout commands have already
4100                  * completed.  This typically means
4101                  * that either the timeout value was on
4102                  * the hairy edge of what the device
4103                  * requires or - more likely - interrupts
4104                  * are not happening.
4105                  */
4106                 mpt_prt(mpt, "Timedout requests already complete. "
4107                     "Interrupts may not be functioning.\n");
4108                 mpt_enable_ints(mpt);
4109                 return;
4110         }
4111
4112         /*
4113          * We have no visibility into the current state of the
4114          * controller, so attempt to abort the commands in the
4115          * order they timed-out. For initiator commands, we
4116          * depend on the reply handler pulling requests off
4117          * the timeout list.
4118          */
4119         while ((req = TAILQ_FIRST(&mpt->request_timeout_list)) != NULL) {
4120                 uint16_t status;
4121                 uint8_t response;
4122                 MSG_REQUEST_HEADER *hdrp = req->req_vbuf;
4123
4124                 mpt_prt(mpt, "attempting to abort req %p:%u function %x\n",
4125                     req, req->serno, hdrp->Function);
4126                 ccb = req->ccb;
4127                 if (ccb == NULL) {
4128                         mpt_prt(mpt, "null ccb in timed out request. "
4129                             "Resetting Controller.\n");
4130                         mpt_reset(mpt, TRUE);
4131                         continue;
4132                 }
4133                 mpt_set_ccb_status(ccb, CAM_CMD_TIMEOUT);
4134
4135                 /*
4136                  * Check to see if this is not an initiator command and
4137                  * deal with it differently if it is.
4138                  */
4139                 switch (hdrp->Function) {
4140                 case MPI_FUNCTION_SCSI_IO_REQUEST:
4141                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
4142                         break;
4143                 default:
4144                         /*
4145                          * XXX: FIX ME: need to abort target assists...
4146                          */
4147                         mpt_prt(mpt, "just putting it back on the pend q\n");
4148                         TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
4149                         TAILQ_INSERT_HEAD(&mpt->request_pending_list, req,
4150                             links);
4151                         continue;
4152                 }
4153
4154                 error = mpt_scsi_send_tmf(mpt,
4155                     MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
4156                     0, 0, ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
4157                     htole32(req->index | scsi_io_handler_id), TRUE);
4158
4159                 if (error != 0) {
4160                         /*
4161                          * mpt_scsi_send_tmf hard resets on failure, so no
4162                          * need to do so here.  Our queue should be emptied
4163                          * by the hard reset.
4164                          */
4165                         continue;
4166                 }
4167
4168                 error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
4169                     REQ_STATE_DONE, TRUE, 500);
4170
4171                 status = le16toh(mpt->tmf_req->IOCStatus);
4172                 response = mpt->tmf_req->ResponseCode;
4173                 mpt->tmf_req->state = REQ_STATE_FREE;
4174
4175                 if (error != 0) {
4176                         /*
4177                          * If we've errored out,, reset the controller.
4178                          */
4179                         mpt_prt(mpt, "mpt_recover_commands: abort timed-out. "
4180                             "Resetting controller\n");
4181                         mpt_reset(mpt, TRUE);
4182                         continue;
4183                 }
4184
4185                 if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
4186                         mpt_prt(mpt, "mpt_recover_commands: IOC Status 0x%x. "
4187                             "Resetting controller.\n", status);
4188                         mpt_reset(mpt, TRUE);
4189                         continue;
4190                 }
4191
4192                 if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
4193                     response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
4194                         mpt_prt(mpt, "mpt_recover_commands: TMF Response 0x%x. "
4195                             "Resetting controller.\n", response);
4196                         mpt_reset(mpt, TRUE);
4197                         continue;
4198                 }
4199                 mpt_prt(mpt, "abort of req %p:%u completed\n", req, req->serno);
4200         }
4201 }
4202
4203 /************************ Target Mode Support ****************************/
4204 static void
4205 mpt_fc_post_els(struct mpt_softc *mpt, request_t *req, int ioindex)
4206 {
4207         MSG_LINK_SERVICE_BUFFER_POST_REQUEST *fc;
4208         PTR_SGE_TRANSACTION32 tep;
4209         PTR_SGE_SIMPLE32 se;
4210         bus_addr_t paddr;
4211         uint32_t fl;
4212
4213         paddr = req->req_pbuf;
4214         paddr += MPT_RQSL(mpt);
4215
4216         fc = req->req_vbuf;
4217         memset(fc, 0, MPT_REQUEST_AREA);
4218         fc->BufferCount = 1;
4219         fc->Function = MPI_FUNCTION_FC_LINK_SRVC_BUF_POST;
4220         fc->MsgContext = htole32(req->index | fc_els_handler_id);
4221
4222         /*
4223          * Okay, set up ELS buffer pointers. ELS buffer pointers
4224          * consist of a TE SGL element (with details length of zero)
4225          * followe by a SIMPLE SGL element which holds the address
4226          * of the buffer.
4227          */
4228
4229         tep = (PTR_SGE_TRANSACTION32) &fc->SGL;
4230
4231         tep->ContextSize = 4;
4232         tep->Flags = 0;
4233         tep->TransactionContext[0] = htole32(ioindex);
4234
4235         se = (PTR_SGE_SIMPLE32) &tep->TransactionDetails[0];
4236         fl =
4237                 MPI_SGE_FLAGS_HOST_TO_IOC       |
4238                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4239                 MPI_SGE_FLAGS_LAST_ELEMENT      |
4240                 MPI_SGE_FLAGS_END_OF_LIST       |
4241                 MPI_SGE_FLAGS_END_OF_BUFFER;
4242         fl <<= MPI_SGE_FLAGS_SHIFT;
4243         fl |= (MPT_NRFM(mpt) - MPT_RQSL(mpt));
4244         se->FlagsLength = htole32(fl);
4245         se->Address = htole32((uint32_t) paddr);
4246         mpt_lprt(mpt, MPT_PRT_DEBUG,
4247             "add ELS index %d ioindex %d for %p:%u\n",
4248             req->index, ioindex, req, req->serno);
4249         KASSERT(((req->state & REQ_STATE_LOCKED) != 0),
4250             ("mpt_fc_post_els: request not locked"));
4251         mpt_send_cmd(mpt, req);
4252 }
4253
4254 static void
4255 mpt_post_target_command(struct mpt_softc *mpt, request_t *req, int ioindex)
4256 {
4257         PTR_MSG_TARGET_CMD_BUFFER_POST_REQUEST fc;
4258         PTR_CMD_BUFFER_DESCRIPTOR cb;
4259         bus_addr_t paddr;
4260
4261         paddr = req->req_pbuf;
4262         paddr += MPT_RQSL(mpt);
4263         memset(req->req_vbuf, 0, MPT_REQUEST_AREA);
4264         MPT_TGT_STATE(mpt, req)->state = TGT_STATE_LOADING;
4265
4266         fc = req->req_vbuf;
4267         fc->BufferCount = 1;
4268         fc->Function = MPI_FUNCTION_TARGET_CMD_BUFFER_POST;
4269         fc->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4270
4271         cb = &fc->Buffer[0];
4272         cb->IoIndex = htole16(ioindex);
4273         cb->u.PhysicalAddress32 = htole32((U32) paddr);
4274
4275         mpt_check_doorbell(mpt);
4276         mpt_send_cmd(mpt, req);
4277 }
4278
4279 static int
4280 mpt_add_els_buffers(struct mpt_softc *mpt)
4281 {
4282         int i;
4283
4284         if (mpt->is_fc == 0) {
4285                 return (TRUE);
4286         }
4287
4288         if (mpt->els_cmds_allocated) {
4289                 return (TRUE);
4290         }
4291
4292         mpt->els_cmd_ptrs = malloc(MPT_MAX_ELS * sizeof (request_t *),
4293             M_DEVBUF, M_NOWAIT | M_ZERO);
4294
4295         if (mpt->els_cmd_ptrs == NULL) {
4296                 return (FALSE);
4297         }
4298
4299         /*
4300          * Feed the chip some ELS buffer resources
4301          */
4302         for (i = 0; i < MPT_MAX_ELS; i++) {
4303                 request_t *req = mpt_get_request(mpt, FALSE);
4304                 if (req == NULL) {
4305                         break;
4306                 }
4307                 req->state |= REQ_STATE_LOCKED;
4308                 mpt->els_cmd_ptrs[i] = req;
4309                 mpt_fc_post_els(mpt, req, i);
4310         }
4311
4312         if (i == 0) {
4313                 mpt_prt(mpt, "unable to add ELS buffer resources\n");
4314                 free(mpt->els_cmd_ptrs, M_DEVBUF);
4315                 mpt->els_cmd_ptrs = NULL;
4316                 return (FALSE);
4317         }
4318         if (i != MPT_MAX_ELS) {
4319                 mpt_lprt(mpt, MPT_PRT_INFO,
4320                     "only added %d of %d  ELS buffers\n", i, MPT_MAX_ELS);
4321         }
4322         mpt->els_cmds_allocated = i;
4323         return(TRUE);
4324 }
4325
4326 static int
4327 mpt_add_target_commands(struct mpt_softc *mpt)
4328 {
4329         int i, max;
4330
4331         if (mpt->tgt_cmd_ptrs) {
4332                 return (TRUE);
4333         }
4334
4335         max = MPT_MAX_REQUESTS(mpt) >> 1;
4336         if (max > mpt->mpt_max_tgtcmds) {
4337                 max = mpt->mpt_max_tgtcmds;
4338         }
4339         mpt->tgt_cmd_ptrs =
4340             malloc(max * sizeof (request_t *), M_DEVBUF, M_NOWAIT | M_ZERO);
4341         if (mpt->tgt_cmd_ptrs == NULL) {
4342                 mpt_prt(mpt,
4343                     "mpt_add_target_commands: could not allocate cmd ptrs\n");
4344                 return (FALSE);
4345         }
4346
4347         for (i = 0; i < max; i++) {
4348                 request_t *req;
4349
4350                 req = mpt_get_request(mpt, FALSE);
4351                 if (req == NULL) {
4352                         break;
4353                 }
4354                 req->state |= REQ_STATE_LOCKED;
4355                 mpt->tgt_cmd_ptrs[i] = req;
4356                 mpt_post_target_command(mpt, req, i);
4357         }
4358
4359
4360         if (i == 0) {
4361                 mpt_lprt(mpt, MPT_PRT_ERROR, "could not add any target bufs\n");
4362                 free(mpt->tgt_cmd_ptrs, M_DEVBUF);
4363                 mpt->tgt_cmd_ptrs = NULL;
4364                 return (FALSE);
4365         }
4366
4367         mpt->tgt_cmds_allocated = i;
4368
4369         if (i < max) {
4370                 mpt_lprt(mpt, MPT_PRT_INFO,
4371                     "added %d of %d target bufs\n", i, max);
4372         }
4373         return (i);
4374 }
4375
4376 static int
4377 mpt_enable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4378 {
4379         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4380                 mpt->twildcard = 1;
4381         } else if (lun >= MPT_MAX_LUNS) {
4382                 return (EINVAL);
4383         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4384                 return (EINVAL);
4385         }
4386         if (mpt->tenabled == 0) {
4387                 if (mpt->is_fc) {
4388                         (void) mpt_fc_reset_link(mpt, 0);
4389                 }
4390                 mpt->tenabled = 1;
4391         }
4392         if (lun == CAM_LUN_WILDCARD) {
4393                 mpt->trt_wildcard.enabled = 1;
4394         } else {
4395                 mpt->trt[lun].enabled = 1;
4396         }
4397         return (0);
4398 }
4399
4400 static int
4401 mpt_disable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4402 {
4403         int i;
4404         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4405                 mpt->twildcard = 0;
4406         } else if (lun >= MPT_MAX_LUNS) {
4407                 return (EINVAL);
4408         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4409                 return (EINVAL);
4410         }
4411         if (lun == CAM_LUN_WILDCARD) {
4412                 mpt->trt_wildcard.enabled = 0;
4413         } else {
4414                 mpt->trt[lun].enabled = 0;
4415         }
4416         for (i = 0; i < MPT_MAX_LUNS; i++) {
4417                 if (mpt->trt[lun].enabled) {
4418                         break;
4419                 }
4420         }
4421         if (i == MPT_MAX_LUNS && mpt->twildcard == 0) {
4422                 if (mpt->is_fc) {
4423                         (void) mpt_fc_reset_link(mpt, 0);
4424                 }
4425                 mpt->tenabled = 0;
4426         }
4427         return (0);
4428 }
4429
4430 /*
4431  * Called with MPT lock held
4432  */
4433 static void
4434 mpt_target_start_io(struct mpt_softc *mpt, union ccb *ccb)
4435 {
4436         struct ccb_scsiio *csio = &ccb->csio;
4437         request_t *cmd_req = MPT_TAG_2_REQ(mpt, csio->tag_id);
4438         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
4439
4440         switch (tgt->state) {
4441         case TGT_STATE_IN_CAM:
4442                 break;
4443         case TGT_STATE_MOVING_DATA:
4444                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4445                 xpt_freeze_simq(mpt->sim, 1);
4446                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4447                 tgt->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4448                 MPTLOCK_2_CAMLOCK(mpt);
4449                 xpt_done(ccb);
4450                 CAMLOCK_2_MPTLOCK(mpt);
4451                 return;
4452         default:
4453                 mpt_prt(mpt, "ccb %p flags 0x%x tag 0x%08x had bad request "
4454                     "starting I/O\n", ccb, csio->ccb_h.flags, csio->tag_id);
4455                 mpt_tgt_dump_req_state(mpt, cmd_req);
4456                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
4457                 MPTLOCK_2_CAMLOCK(mpt);
4458                 xpt_done(ccb);
4459                 CAMLOCK_2_MPTLOCK(mpt);
4460                 return;
4461         }
4462
4463         if (csio->dxfer_len) {
4464                 bus_dmamap_callback_t *cb;
4465                 PTR_MSG_TARGET_ASSIST_REQUEST ta;
4466                 request_t *req;
4467
4468                 KASSERT((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE,
4469                     ("dxfer_len %u but direction is NONE\n", csio->dxfer_len));
4470
4471                 if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4472                         if (mpt->outofbeer == 0) {
4473                                 mpt->outofbeer = 1;
4474                                 xpt_freeze_simq(mpt->sim, 1);
4475                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4476                         }
4477                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4478                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4479                         MPTLOCK_2_CAMLOCK(mpt);
4480                         xpt_done(ccb);
4481                         CAMLOCK_2_MPTLOCK(mpt);
4482                         return;
4483                 }
4484                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4485                 if (sizeof (bus_addr_t) > 4) {
4486                         cb = mpt_execute_req_a64;
4487                 } else {
4488                         cb = mpt_execute_req;
4489                 }
4490
4491                 req->ccb = ccb;
4492                 ccb->ccb_h.ccb_req_ptr = req;
4493
4494                 /*
4495                  * Record the currently active ccb and the
4496                  * request for it in our target state area.
4497                  */
4498                 tgt->ccb = ccb;
4499                 tgt->req = req;
4500
4501                 memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4502                 ta = req->req_vbuf;
4503
4504                 if (mpt->is_sas) {
4505                         PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4506                              cmd_req->req_vbuf;
4507                         ta->QueueTag = ssp->InitiatorTag;
4508                 } else if (mpt->is_spi) {
4509                         PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4510                              cmd_req->req_vbuf;
4511                         ta->QueueTag = sp->Tag;
4512                 }
4513                 ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4514                 ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4515                 ta->ReplyWord = htole32(tgt->reply_desc);
4516                 if (csio->ccb_h.target_lun > MPT_MAX_LUNS) {
4517                         ta->LUN[0] =
4518                             0x40 | ((csio->ccb_h.target_lun >> 8) & 0x3f);
4519                         ta->LUN[1] = csio->ccb_h.target_lun & 0xff;
4520                 } else {
4521                         ta->LUN[1] = csio->ccb_h.target_lun;
4522                 }
4523
4524                 ta->RelativeOffset = tgt->bytes_xfered;
4525                 ta->DataLength = ccb->csio.dxfer_len;
4526                 if (ta->DataLength > tgt->resid) {
4527                         ta->DataLength = tgt->resid;
4528                 }
4529
4530                 /*
4531                  * XXX Should be done after data transfer completes?
4532                  */
4533                 tgt->resid -= csio->dxfer_len;
4534                 tgt->bytes_xfered += csio->dxfer_len;
4535
4536                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
4537                         ta->TargetAssistFlags |=
4538                             TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4539                 }
4540
4541 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4542                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
4543                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
4544                         ta->TargetAssistFlags |=
4545                             TARGET_ASSIST_FLAGS_AUTO_STATUS;
4546                 }
4547 #endif
4548                 tgt->state = TGT_STATE_SETTING_UP_FOR_DATA;
4549
4550                 mpt_lprt(mpt, MPT_PRT_DEBUG,
4551                     "DATA_CCB %p tag %x %u bytes %u resid flg %x req %p:%u "
4552                     "nxtstate=%d\n", csio, csio->tag_id, csio->dxfer_len,
4553                     tgt->resid, ccb->ccb_h.flags, req, req->serno, tgt->state);
4554
4555                 MPTLOCK_2_CAMLOCK(mpt);
4556                 if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
4557                         if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) {
4558                                 int error;
4559                                 int s = splsoftvm();
4560                                 error = bus_dmamap_load(mpt->buffer_dmat,
4561                                     req->dmap, csio->data_ptr, csio->dxfer_len,
4562                                     cb, req, 0);
4563                                 splx(s);
4564                                 if (error == EINPROGRESS) {
4565                                         xpt_freeze_simq(mpt->sim, 1);
4566                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4567                                 }
4568                         } else {
4569                                 /*
4570                                  * We have been given a pointer to single
4571                                  * physical buffer.
4572                                  */
4573                                 struct bus_dma_segment seg;
4574                                 seg.ds_addr = (bus_addr_t)
4575                                     (vm_offset_t)csio->data_ptr;
4576                                 seg.ds_len = csio->dxfer_len;
4577                                 (*cb)(req, &seg, 1, 0);
4578                         }
4579                 } else {
4580                         /*
4581                          * We have been given a list of addresses.
4582                          * This case could be easily supported but they are not
4583                          * currently generated by the CAM subsystem so there
4584                          * is no point in wasting the time right now.
4585                          */
4586                         struct bus_dma_segment *sgs;
4587                         if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
4588                                 (*cb)(req, NULL, 0, EFAULT);
4589                         } else {
4590                                 /* Just use the segments provided */
4591                                 sgs = (struct bus_dma_segment *)csio->data_ptr;
4592                                 (*cb)(req, sgs, csio->sglist_cnt, 0);
4593                         }
4594                 }
4595                 CAMLOCK_2_MPTLOCK(mpt);
4596         } else {
4597                 uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
4598
4599                 /*
4600                  * XXX: I don't know why this seems to happen, but
4601                  * XXX: completing the CCB seems to make things happy.
4602                  * XXX: This seems to happen if the initiator requests
4603                  * XXX: enough data that we have to do multiple CTIOs.
4604                  */
4605                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
4606                         mpt_lprt(mpt, MPT_PRT_DEBUG,
4607                             "Meaningless STATUS CCB (%p): flags %x status %x "
4608                             "resid %d bytes_xfered %u\n", ccb, ccb->ccb_h.flags,
4609                             ccb->ccb_h.status, tgt->resid, tgt->bytes_xfered);
4610                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
4611                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4612                         MPTLOCK_2_CAMLOCK(mpt);
4613                         xpt_done(ccb);
4614                         CAMLOCK_2_MPTLOCK(mpt);
4615                         return;
4616                 }
4617                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
4618                         sp = sense;
4619                         memcpy(sp, &csio->sense_data,
4620                            min(csio->sense_len, MPT_SENSE_SIZE));
4621                 }
4622                 mpt_scsi_tgt_status(mpt, ccb, cmd_req, csio->scsi_status, sp);
4623         }
4624 }
4625
4626 static void
4627 mpt_scsi_tgt_local(struct mpt_softc *mpt, request_t *cmd_req,
4628     uint32_t lun, int send, uint8_t *data, size_t length)
4629 {
4630         mpt_tgt_state_t *tgt;
4631         PTR_MSG_TARGET_ASSIST_REQUEST ta;
4632         SGE_SIMPLE32 *se;
4633         uint32_t flags;
4634         uint8_t *dptr;
4635         bus_addr_t pptr;
4636         request_t *req;
4637
4638         /*
4639          * We enter with resid set to the data load for the command.
4640          */
4641         tgt = MPT_TGT_STATE(mpt, cmd_req);
4642         if (length == 0 || tgt->resid == 0) {
4643                 tgt->resid = 0;
4644                 mpt_scsi_tgt_status(mpt, NULL, cmd_req, 0, NULL);
4645                 return;
4646         }
4647
4648         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4649                 mpt_prt(mpt, "out of resources- dropping local response\n");
4650                 return;
4651         }
4652         tgt->is_local = 1;
4653
4654
4655         memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4656         ta = req->req_vbuf;
4657
4658         if (mpt->is_sas) {
4659                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp = cmd_req->req_vbuf;
4660                 ta->QueueTag = ssp->InitiatorTag;
4661         } else if (mpt->is_spi) {
4662                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp = cmd_req->req_vbuf;
4663                 ta->QueueTag = sp->Tag;
4664         }
4665         ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4666         ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4667         ta->ReplyWord = htole32(tgt->reply_desc);
4668         if (lun > MPT_MAX_LUNS) {
4669                 ta->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4670                 ta->LUN[1] = lun & 0xff;
4671         } else {
4672                 ta->LUN[1] = lun;
4673         }
4674         ta->RelativeOffset = 0;
4675         ta->DataLength = length;
4676
4677         dptr = req->req_vbuf;
4678         dptr += MPT_RQSL(mpt);
4679         pptr = req->req_pbuf;
4680         pptr += MPT_RQSL(mpt);
4681         memcpy(dptr, data, min(length, MPT_RQSL(mpt)));
4682
4683         se = (SGE_SIMPLE32 *) &ta->SGL[0];
4684         memset(se, 0,sizeof (*se));
4685
4686         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
4687         if (send) {
4688                 ta->TargetAssistFlags |= TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4689                 flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
4690         }
4691         se->Address = pptr;
4692         MPI_pSGE_SET_LENGTH(se, length);
4693         flags |= MPI_SGE_FLAGS_LAST_ELEMENT;
4694         flags |= MPI_SGE_FLAGS_END_OF_LIST | MPI_SGE_FLAGS_END_OF_BUFFER;
4695         MPI_pSGE_SET_FLAGS(se, flags);
4696
4697         tgt->ccb = NULL;
4698         tgt->req = req;
4699         tgt->resid -= length;
4700         tgt->bytes_xfered = length;
4701 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4702         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
4703 #else
4704         tgt->state = TGT_STATE_MOVING_DATA;
4705 #endif
4706         mpt_send_cmd(mpt, req);
4707 }
4708
4709 /*
4710  * Abort queued up CCBs
4711  */
4712 static cam_status
4713 mpt_abort_target_ccb(struct mpt_softc *mpt, union ccb *ccb)
4714 {
4715         struct mpt_hdr_stailq *lp;
4716         struct ccb_hdr *srch;
4717         int found = 0;
4718         union ccb *accb = ccb->cab.abort_ccb;
4719         tgt_resource_t *trtp;
4720
4721         mpt_lprt(mpt, MPT_PRT_DEBUG, "aborting ccb %p\n", accb);
4722
4723         if (ccb->ccb_h.target_lun == CAM_LUN_WILDCARD) {
4724                 trtp = &mpt->trt_wildcard;
4725         } else {
4726                 trtp = &mpt->trt[ccb->ccb_h.target_lun];
4727         }
4728
4729         if (accb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
4730                 lp = &trtp->atios;
4731         } else if (accb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
4732                 lp = &trtp->inots;
4733         } else {
4734                 return (CAM_REQ_INVALID);
4735         }
4736
4737         STAILQ_FOREACH(srch, lp, sim_links.stqe) {
4738                 if (srch == &accb->ccb_h) {
4739                         found = 1;
4740                         STAILQ_REMOVE(lp, srch, ccb_hdr, sim_links.stqe);
4741                         break;
4742                 }
4743         }
4744         if (found) {
4745                 accb->ccb_h.status = CAM_REQ_ABORTED;
4746                 xpt_done(accb);
4747                 return (CAM_REQ_CMP);
4748         }
4749         mpt_prt(mpt, "mpt_abort_tgt_ccb: CCB %p not found\n", ccb);
4750         return (CAM_PATH_INVALID);
4751 }
4752
4753 /*
4754  * Ask the MPT to abort the current target command
4755  */
4756 static int
4757 mpt_abort_target_cmd(struct mpt_softc *mpt, request_t *cmd_req)
4758 {
4759         int error;
4760         request_t *req;
4761         PTR_MSG_TARGET_MODE_ABORT abtp;
4762
4763         req = mpt_get_request(mpt, FALSE);
4764         if (req == NULL) {
4765                 return (-1);
4766         }
4767         abtp = req->req_vbuf;
4768         memset(abtp, 0, sizeof (*abtp));
4769
4770         abtp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4771         abtp->AbortType = TARGET_MODE_ABORT_TYPE_EXACT_IO;
4772         abtp->Function = MPI_FUNCTION_TARGET_MODE_ABORT;
4773         abtp->ReplyWord = htole32(MPT_TGT_STATE(mpt, cmd_req)->reply_desc);
4774         error = 0;
4775         if (mpt->is_fc || mpt->is_sas) {
4776                 mpt_send_cmd(mpt, req);
4777         } else {
4778                 error = mpt_send_handshake_cmd(mpt, sizeof(*req), req);
4779         }
4780         return (error);
4781 }
4782
4783 /*
4784  * WE_TRUST_AUTO_GOOD_STATUS- I've found that setting
4785  * TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS leads the
4786  * FC929 to set bogus FC_RSP fields (nonzero residuals
4787  * but w/o RESID fields set). This causes QLogic initiators
4788  * to think maybe that a frame was lost.
4789  *
4790  * WE_CAN_USE_AUTO_REPOST- we can't use AUTO_REPOST because
4791  * we use allocated requests to do TARGET_ASSIST and we
4792  * need to know when to release them.
4793  */
4794
4795 static void
4796 mpt_scsi_tgt_status(struct mpt_softc *mpt, union ccb *ccb, request_t *cmd_req,
4797     uint8_t status, uint8_t const *sense_data)
4798 {
4799         uint8_t *cmd_vbuf;
4800         mpt_tgt_state_t *tgt;
4801         PTR_MSG_TARGET_STATUS_SEND_REQUEST tp;
4802         request_t *req;
4803         bus_addr_t paddr;
4804         int resplen = 0;
4805         uint32_t fl;
4806
4807         cmd_vbuf = cmd_req->req_vbuf;
4808         cmd_vbuf += MPT_RQSL(mpt);
4809         tgt = MPT_TGT_STATE(mpt, cmd_req);
4810
4811         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4812                 if (mpt->outofbeer == 0) {
4813                         mpt->outofbeer = 1;
4814                         xpt_freeze_simq(mpt->sim, 1);
4815                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4816                 }
4817                 if (ccb) {
4818                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4819                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4820                         MPTLOCK_2_CAMLOCK(mpt);
4821                         xpt_done(ccb);
4822                         CAMLOCK_2_MPTLOCK(mpt);
4823                 } else {
4824                         mpt_prt(mpt,
4825                             "could not allocate status request- dropping\n");
4826                 }
4827                 return;
4828         }
4829         req->ccb = ccb;
4830         if (ccb) {
4831                 ccb->ccb_h.ccb_mpt_ptr = mpt;
4832                 ccb->ccb_h.ccb_req_ptr = req;
4833         }
4834
4835         /*
4836          * Record the currently active ccb, if any, and the
4837          * request for it in our target state area.
4838          */
4839         tgt->ccb = ccb;
4840         tgt->req = req;
4841         tgt->state = TGT_STATE_SENDING_STATUS;
4842
4843         tp = req->req_vbuf;
4844         paddr = req->req_pbuf;
4845         paddr += MPT_RQSL(mpt);
4846
4847         memset(tp, 0, sizeof (*tp));
4848         tp->Function = MPI_FUNCTION_TARGET_STATUS_SEND;
4849         if (mpt->is_fc) {
4850                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc =
4851                     (PTR_MPI_TARGET_FCP_CMD_BUFFER) cmd_vbuf;
4852                 uint8_t *sts_vbuf;
4853                 uint32_t *rsp;
4854
4855                 sts_vbuf = req->req_vbuf;
4856                 sts_vbuf += MPT_RQSL(mpt);
4857                 rsp = (uint32_t *) sts_vbuf;
4858                 memcpy(tp->LUN, fc->FcpLun, sizeof (tp->LUN));
4859
4860                 /*
4861                  * The MPI_TARGET_FCP_RSP_BUFFER define is unfortunate.
4862                  * It has to be big-endian in memory and is organized
4863                  * in 32 bit words, which are much easier to deal with
4864                  * as words which are swizzled as needed.
4865                  *
4866                  * All we're filling here is the FC_RSP payload.
4867                  * We may just have the chip synthesize it if
4868                  * we have no residual and an OK status.
4869                  *
4870                  */
4871                 memset(rsp, 0, sizeof (MPI_TARGET_FCP_RSP_BUFFER));
4872
4873                 rsp[2] = status;
4874                 if (tgt->resid) {
4875                         rsp[2] |= 0x800;        /* XXXX NEED MNEMONIC!!!! */
4876                         rsp[3] = htobe32(tgt->resid);
4877 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4878                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4879 #endif
4880                 }
4881                 if (status == SCSI_STATUS_CHECK_COND) {
4882                         int i;
4883
4884                         rsp[2] |= 0x200;        /* XXXX NEED MNEMONIC!!!! */
4885                         rsp[4] = htobe32(MPT_SENSE_SIZE);
4886                         if (sense_data) {
4887                                 memcpy(&rsp[8], sense_data, MPT_SENSE_SIZE);
4888                         } else {
4889                                 mpt_prt(mpt, "mpt_scsi_tgt_status: CHECK CONDI"
4890                                     "TION but no sense data?\n");
4891                                 memset(&rsp, 0, MPT_SENSE_SIZE);
4892                         }
4893                         for (i = 8; i < (8 + (MPT_SENSE_SIZE >> 2)); i++) {
4894                                 rsp[i] = htobe32(rsp[i]);
4895                         }
4896 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4897                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4898 #endif
4899                 }
4900 #ifndef WE_TRUST_AUTO_GOOD_STATUS
4901                 resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4902 #endif
4903                 rsp[2] = htobe32(rsp[2]);
4904         } else if (mpt->is_sas) {
4905                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4906                     (PTR_MPI_TARGET_SSP_CMD_BUFFER) cmd_vbuf;
4907                 memcpy(tp->LUN, ssp->LogicalUnitNumber, sizeof (tp->LUN));
4908         } else {
4909                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4910                     (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) cmd_vbuf;
4911                 tp->StatusCode = status;
4912                 tp->QueueTag = htole16(sp->Tag);
4913                 memcpy(tp->LUN, sp->LogicalUnitNumber, sizeof (tp->LUN));
4914         }
4915
4916         tp->ReplyWord = htole32(tgt->reply_desc);
4917         tp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4918
4919 #ifdef  WE_CAN_USE_AUTO_REPOST
4920         tp->MsgFlags = TARGET_STATUS_SEND_FLAGS_REPOST_CMD_BUFFER;
4921 #endif
4922         if (status == SCSI_STATUS_OK && resplen == 0) {
4923                 tp->MsgFlags |= TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS;
4924         } else {
4925                 tp->StatusDataSGE.u.Address32 = htole32((uint32_t) paddr);
4926                 fl =
4927                         MPI_SGE_FLAGS_HOST_TO_IOC       |
4928                         MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4929                         MPI_SGE_FLAGS_LAST_ELEMENT      |
4930                         MPI_SGE_FLAGS_END_OF_LIST       |
4931                         MPI_SGE_FLAGS_END_OF_BUFFER;
4932                 fl <<= MPI_SGE_FLAGS_SHIFT;
4933                 fl |= resplen;
4934                 tp->StatusDataSGE.FlagsLength = htole32(fl);
4935         }
4936
4937         mpt_lprt(mpt, MPT_PRT_DEBUG,
4938             "STATUS_CCB %p (wit%s sense) tag %x req %p:%u resid %u\n",
4939             ccb, sense_data?"h" : "hout", ccb? ccb->csio.tag_id : -1, req,
4940             req->serno, tgt->resid);
4941         if (ccb) {
4942                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4943                 mpt_req_timeout(req, 60 * hz, mpt_timeout, ccb);
4944         }
4945         mpt_send_cmd(mpt, req);
4946 }
4947
4948 static void
4949 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *mpt, request_t *req, mpt_task_mgmt_t fc,
4950     tgt_resource_t *trtp, int init_id)
4951 {
4952         struct ccb_immed_notify *inot;
4953         mpt_tgt_state_t *tgt;
4954
4955         tgt = MPT_TGT_STATE(mpt, req);
4956         inot = (struct ccb_immed_notify *) STAILQ_FIRST(&trtp->inots);
4957         if (inot == NULL) {
4958                 mpt_lprt(mpt, MPT_PRT_WARN, "no INOTSs- sending back BSY\n");
4959                 mpt_scsi_tgt_status(mpt, NULL, req, SCSI_STATUS_BUSY, NULL);
4960                 return;
4961         }
4962         STAILQ_REMOVE_HEAD(&trtp->inots, sim_links.stqe);
4963         mpt_lprt(mpt, MPT_PRT_DEBUG1,
4964             "Get FREE INOT %p lun %d\n", inot, inot->ccb_h.target_lun);
4965
4966         memset(&inot->sense_data, 0, sizeof (inot->sense_data));
4967         inot->sense_len = 0;
4968         memset(inot->message_args, 0, sizeof (inot->message_args));
4969         inot->initiator_id = init_id;   /* XXX */
4970
4971         /*
4972          * This is a somewhat grotesque attempt to map from task management
4973          * to old style SCSI messages. God help us all.
4974          */
4975         switch (fc) {
4976         case MPT_ABORT_TASK_SET:
4977                 inot->message_args[0] = MSG_ABORT_TAG;
4978                 break;
4979         case MPT_CLEAR_TASK_SET:
4980                 inot->message_args[0] = MSG_CLEAR_TASK_SET;
4981                 break;
4982         case MPT_TARGET_RESET:
4983                 inot->message_args[0] = MSG_TARGET_RESET;
4984                 break;
4985         case MPT_CLEAR_ACA:
4986                 inot->message_args[0] = MSG_CLEAR_ACA;
4987                 break;
4988         case MPT_TERMINATE_TASK:
4989                 inot->message_args[0] = MSG_ABORT_TAG;
4990                 break;
4991         default:
4992                 inot->message_args[0] = MSG_NOOP;
4993                 break;
4994         }
4995         tgt->ccb = (union ccb *) inot;
4996         inot->ccb_h.status = CAM_MESSAGE_RECV|CAM_DEV_QFRZN;
4997         MPTLOCK_2_CAMLOCK(mpt);
4998         xpt_done((union ccb *)inot);
4999         CAMLOCK_2_MPTLOCK(mpt);
5000 }
5001
5002 static void
5003 mpt_scsi_tgt_atio(struct mpt_softc *mpt, request_t *req, uint32_t reply_desc)
5004 {
5005         static uint8_t null_iqd[SHORT_INQUIRY_LENGTH] = {
5006             0x7f, 0x00, 0x02, 0x02, 0x20, 0x00, 0x00, 0x32,
5007              'F',  'R',  'E',  'E',  'B',  'S',  'D',  ' ',
5008              'L',  'S',  'I',  '-',  'L',  'O',  'G',  'I',
5009              'C',  ' ',  'N',  'U',  'L',  'D',  'E',  'V',
5010              '0',  '0',  '0',  '1'
5011         };
5012         struct ccb_accept_tio *atiop;
5013         lun_id_t lun;
5014         int tag_action = 0;
5015         mpt_tgt_state_t *tgt;
5016         tgt_resource_t *trtp = NULL;
5017         U8 *lunptr;
5018         U8 *vbuf;
5019         U16 itag;
5020         U16 ioindex;
5021         mpt_task_mgmt_t fct = MPT_NIL_TMT_VALUE;
5022         uint8_t *cdbp;
5023
5024         /*
5025          * First, DMA sync the received command-
5026          * which is in the *request* * phys area.
5027          *
5028          * XXX: We could optimize this for a range
5029          */
5030         bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
5031             BUS_DMASYNC_POSTREAD);
5032
5033         /*
5034          * Stash info for the current command where we can get at it later.
5035          */
5036         vbuf = req->req_vbuf;
5037         vbuf += MPT_RQSL(mpt);
5038
5039         /*
5040          * Get our state pointer set up.
5041          */
5042         tgt = MPT_TGT_STATE(mpt, req);
5043         if (tgt->state != TGT_STATE_LOADED) {
5044                 mpt_tgt_dump_req_state(mpt, req);
5045                 panic("bad target state in mpt_scsi_tgt_atio");
5046         }
5047         memset(tgt, 0, sizeof (mpt_tgt_state_t));
5048         tgt->state = TGT_STATE_IN_CAM;
5049         tgt->reply_desc = reply_desc;
5050         ioindex = GET_IO_INDEX(reply_desc);
5051         if (mpt->verbose >= MPT_PRT_DEBUG) {
5052                 mpt_dump_data(mpt, "mpt_scsi_tgt_atio response", vbuf,
5053                     max(sizeof (MPI_TARGET_FCP_CMD_BUFFER),
5054                     max(sizeof (MPI_TARGET_SSP_CMD_BUFFER),
5055                     sizeof (MPI_TARGET_SCSI_SPI_CMD_BUFFER))));
5056         }
5057         if (mpt->is_fc) {
5058                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc;
5059                 fc = (PTR_MPI_TARGET_FCP_CMD_BUFFER) vbuf;
5060                 if (fc->FcpCntl[2]) {
5061                         /*
5062                          * Task Management Request
5063                          */
5064                         switch (fc->FcpCntl[2]) {
5065                         case 0x2:
5066                                 fct = MPT_ABORT_TASK_SET;
5067                                 break;
5068                         case 0x4:
5069                                 fct = MPT_CLEAR_TASK_SET;
5070                                 break;
5071                         case 0x20:
5072                                 fct = MPT_TARGET_RESET;
5073                                 break;
5074                         case 0x40:
5075                                 fct = MPT_CLEAR_ACA;
5076                                 break;
5077                         case 0x80:
5078                                 fct = MPT_TERMINATE_TASK;
5079                                 break;
5080                         default:
5081                                 mpt_prt(mpt, "CORRUPTED TASK MGMT BITS: 0x%x\n",
5082                                     fc->FcpCntl[2]);
5083                                 mpt_scsi_tgt_status(mpt, 0, req,
5084                                     SCSI_STATUS_OK, 0);
5085                                 return;
5086                         }
5087                 } else {
5088                         switch (fc->FcpCntl[1]) {
5089                         case 0:
5090                                 tag_action = MSG_SIMPLE_Q_TAG;
5091                                 break;
5092                         case 1:
5093                                 tag_action = MSG_HEAD_OF_Q_TAG;
5094                                 break;
5095                         case 2:
5096                                 tag_action = MSG_ORDERED_Q_TAG;
5097                                 break;
5098                         default:
5099                                 /*
5100                                  * Bah. Ignore Untagged Queing and ACA
5101                                  */
5102                                 tag_action = MSG_SIMPLE_Q_TAG;
5103                                 break;
5104                         }
5105                 }
5106                 tgt->resid = be32toh(fc->FcpDl);
5107                 cdbp = fc->FcpCdb;
5108                 lunptr = fc->FcpLun;
5109                 itag = be16toh(fc->OptionalOxid);
5110         } else if (mpt->is_sas) {
5111                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp;
5112                 ssp = (PTR_MPI_TARGET_SSP_CMD_BUFFER) vbuf;
5113                 cdbp = ssp->CDB;
5114                 lunptr = ssp->LogicalUnitNumber;
5115                 itag = ssp->InitiatorTag;
5116         } else {
5117                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp;
5118                 sp = (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) vbuf;
5119                 cdbp = sp->CDB;
5120                 lunptr = sp->LogicalUnitNumber;
5121                 itag = sp->Tag;
5122         }
5123
5124         /*
5125          * Generate a simple lun
5126          */
5127         switch (lunptr[0] & 0xc0) {
5128         case 0x40:
5129                 lun = ((lunptr[0] & 0x3f) << 8) | lunptr[1];
5130                 break;
5131         case 0:
5132                 lun = lunptr[1];
5133                 break;
5134         default:
5135                 mpt_lprt(mpt, MPT_PRT_ERROR, "cannot handle this type lun\n");
5136                 lun = 0xffff;
5137                 break;
5138         }
5139
5140         /*
5141          * Deal with non-enabled or bad luns here.
5142          */
5143         if (lun >= MPT_MAX_LUNS || mpt->tenabled == 0 ||
5144             mpt->trt[lun].enabled == 0) {
5145                 if (mpt->twildcard) {
5146                         trtp = &mpt->trt_wildcard;
5147                 } else if (fct == MPT_NIL_TMT_VALUE) {
5148                         /*
5149                          * In this case, we haven't got an upstream listener
5150                          * for either a specific lun or wildcard luns. We
5151                          * have to make some sensible response. For regular
5152                          * inquiry, just return some NOT HERE inquiry data.
5153                          * For VPD inquiry, report illegal field in cdb.
5154                          * For REQUEST SENSE, just return NO SENSE data.
5155                          * REPORT LUNS gets illegal command.
5156                          * All other commands get 'no such device'.
5157                          */
5158                         uint8_t *sp, cond, buf[MPT_SENSE_SIZE];
5159                         size_t len;
5160
5161                         memset(buf, 0, MPT_SENSE_SIZE);
5162                         cond = SCSI_STATUS_CHECK_COND;
5163                         buf[0] = 0xf0;
5164                         buf[2] = 0x5;
5165                         buf[7] = 0x8;
5166                         sp = buf;
5167                         tgt->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5168
5169                         switch (cdbp[0]) {
5170                         case INQUIRY:
5171                         {
5172                                 if (cdbp[1] != 0) {
5173                                         buf[12] = 0x26;
5174                                         buf[13] = 0x01;
5175                                         break;
5176                                 }
5177                                 len = min(tgt->resid, cdbp[4]);
5178                                 len = min(len, sizeof (null_iqd));
5179                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5180                                     "local inquiry %ld bytes\n", (long) len);
5181                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5182                                     null_iqd, len);
5183                                 return;
5184                         }
5185                         case REQUEST_SENSE:
5186                         {
5187                                 buf[2] = 0x0;
5188                                 len = min(tgt->resid, cdbp[4]);
5189                                 len = min(len, sizeof (buf));
5190                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5191                                     "local reqsense %ld bytes\n", (long) len);
5192                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5193                                     buf, len);
5194                                 return;
5195                         }
5196                         case REPORT_LUNS:
5197                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "REPORT LUNS\n");
5198                                 buf[12] = 0x26;
5199                                 return;
5200                         default:
5201                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5202                                     "CMD 0x%x to unmanaged lun %u\n",
5203                                     cdbp[0], lun);
5204                                 buf[12] = 0x25;
5205                                 break;
5206                         }
5207                         mpt_scsi_tgt_status(mpt, NULL, req, cond, sp);
5208                         return;
5209                 }
5210                 /* otherwise, leave trtp NULL */
5211         } else {
5212                 trtp = &mpt->trt[lun];
5213         }
5214
5215         /*
5216          * Deal with any task management
5217          */
5218         if (fct != MPT_NIL_TMT_VALUE) {
5219                 if (trtp == NULL) {
5220                         mpt_prt(mpt, "task mgmt function %x but no listener\n",
5221                             fct);
5222                         mpt_scsi_tgt_status(mpt, 0, req,
5223                             SCSI_STATUS_OK, 0);
5224                 } else {
5225                         mpt_scsi_tgt_tsk_mgmt(mpt, req, fct, trtp,
5226                             GET_INITIATOR_INDEX(reply_desc));
5227                 }
5228                 return;
5229         }
5230
5231
5232         atiop = (struct ccb_accept_tio *) STAILQ_FIRST(&trtp->atios);
5233         if (atiop == NULL) {
5234                 mpt_lprt(mpt, MPT_PRT_WARN,
5235                     "no ATIOs for lun %u- sending back %s\n", lun,
5236                     mpt->tenabled? "QUEUE FULL" : "BUSY");
5237                 mpt_scsi_tgt_status(mpt, NULL, req,
5238                     mpt->tenabled? SCSI_STATUS_QUEUE_FULL : SCSI_STATUS_BUSY,
5239                     NULL);
5240                 return;
5241         }
5242         STAILQ_REMOVE_HEAD(&trtp->atios, sim_links.stqe);
5243         mpt_lprt(mpt, MPT_PRT_DEBUG1,
5244             "Get FREE ATIO %p lun %d\n", atiop, atiop->ccb_h.target_lun);
5245         atiop->ccb_h.ccb_mpt_ptr = mpt;
5246         atiop->ccb_h.status = CAM_CDB_RECVD;
5247         atiop->ccb_h.target_lun = lun;
5248         atiop->sense_len = 0;
5249         atiop->init_id = GET_INITIATOR_INDEX(reply_desc);
5250         atiop->cdb_len = mpt_cdblen(cdbp[0], 16);
5251         memcpy(atiop->cdb_io.cdb_bytes, cdbp, atiop->cdb_len);
5252
5253         /*
5254          * The tag we construct here allows us to find the
5255          * original request that the command came in with.
5256          *
5257          * This way we don't have to depend on anything but the
5258          * tag to find things when CCBs show back up from CAM.
5259          */
5260         atiop->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5261         tgt->tag_id = atiop->tag_id;
5262         if (tag_action) {
5263                 atiop->tag_action = tag_action;
5264                 atiop->ccb_h.flags = CAM_TAG_ACTION_VALID;
5265         }
5266         if (mpt->verbose >= MPT_PRT_DEBUG) {
5267                 int i;
5268                 mpt_prt(mpt, "START_CCB %p for lun %u CDB=<", atiop,
5269                     atiop->ccb_h.target_lun);
5270                 for (i = 0; i < atiop->cdb_len; i++) {
5271                         mpt_prtc(mpt, "%02x%c", cdbp[i] & 0xff,
5272                             (i == (atiop->cdb_len - 1))? '>' : ' ');
5273                 }
5274                 mpt_prtc(mpt, " itag %x tag %x rdesc %x dl=%u\n",
5275                     itag, atiop->tag_id, tgt->reply_desc, tgt->resid);
5276         }
5277
5278         MPTLOCK_2_CAMLOCK(mpt);
5279         xpt_done((union ccb *)atiop);
5280         CAMLOCK_2_MPTLOCK(mpt);
5281 }
5282
5283 static void
5284 mpt_tgt_dump_tgt_state(struct mpt_softc *mpt, request_t *req)
5285 {
5286         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5287
5288         mpt_prt(mpt, "req %p:%u tgt:rdesc 0x%x resid %u xfrd %u ccb %p treq %p "
5289             "nx %d tag 0x%08x state=%d\n", req, req->serno, tgt->reply_desc,
5290             tgt->resid, tgt->bytes_xfered, tgt->ccb, tgt->req, tgt->nxfers,
5291             tgt->tag_id, tgt->state);
5292 }
5293
5294 static void
5295 mpt_tgt_dump_req_state(struct mpt_softc *mpt, request_t *req)
5296 {
5297         mpt_prt(mpt, "req %p:%u index %u (%x) state %x\n", req, req->serno,
5298             req->index, req->index, req->state);
5299         mpt_tgt_dump_tgt_state(mpt, req);
5300 }
5301
5302 static int
5303 mpt_scsi_tgt_reply_handler(struct mpt_softc *mpt, request_t *req,
5304     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
5305 {
5306         int dbg;
5307         union ccb *ccb;
5308         U16 status;
5309
5310         if (reply_frame == NULL) {
5311                 /*
5312                  * Figure out what the state of the command is.
5313                  */
5314                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5315
5316 #ifdef  INVARIANTS
5317                 mpt_req_spcl(mpt, req, "turbo scsi_tgt_reply", __LINE__);
5318                 if (tgt->req) {
5319                         mpt_req_not_spcl(mpt, tgt->req,
5320                             "turbo scsi_tgt_reply associated req", __LINE__);
5321                 }
5322 #endif
5323                 switch(tgt->state) {
5324                 case TGT_STATE_LOADED:
5325                         /*
5326                          * This is a new command starting.
5327                          */
5328                         mpt_scsi_tgt_atio(mpt, req, reply_desc);
5329                         break;
5330                 case TGT_STATE_MOVING_DATA:
5331                 {
5332                         uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
5333
5334                         ccb = tgt->ccb;
5335                         if (tgt->req == NULL) {
5336                                 panic("mpt: turbo target reply with null "
5337                                     "associated request moving data");
5338                                 /* NOTREACHED */
5339                         }
5340                         if (ccb == NULL) {
5341                                 if (tgt->is_local == 0) {
5342                                         panic("mpt: turbo target reply with "
5343                                             "null associated ccb moving data");
5344                                         /* NOTREACHED */
5345                                 }
5346                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5347                                     "TARGET_ASSIST local done\n");
5348                                 TAILQ_REMOVE(&mpt->request_pending_list,
5349                                     tgt->req, links);
5350                                 mpt_free_request(mpt, tgt->req);
5351                                 tgt->req = NULL;
5352                                 mpt_scsi_tgt_status(mpt, NULL, req,
5353                                     0, NULL);
5354                                 return (TRUE);
5355                         }
5356                         tgt->ccb = NULL;
5357                         tgt->nxfers++;
5358                         mpt_req_untimeout(req, mpt_timeout, ccb);
5359                         mpt_lprt(mpt, MPT_PRT_DEBUG,
5360                             "TARGET_ASSIST %p (req %p:%u) done tag 0x%x\n",
5361                             ccb, tgt->req, tgt->req->serno, ccb->csio.tag_id);
5362                         /*
5363                          * Free the Target Assist Request
5364                          */
5365                         KASSERT(tgt->req->ccb == ccb,
5366                             ("tgt->req %p:%u tgt->req->ccb %p", tgt->req,
5367                             tgt->req->serno, tgt->req->ccb));
5368                         TAILQ_REMOVE(&mpt->request_pending_list,
5369                             tgt->req, links);
5370                         mpt_free_request(mpt, tgt->req);
5371                         tgt->req = NULL;
5372
5373                         /*
5374                          * Do we need to send status now? That is, are
5375                          * we done with all our data transfers?
5376                          */
5377                         if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
5378                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5379                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5380                                 KASSERT(ccb->ccb_h.status,
5381                                     ("zero ccb sts at %d\n", __LINE__));
5382                                 tgt->state = TGT_STATE_IN_CAM;
5383                                 if (mpt->outofbeer) {
5384                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5385                                         mpt->outofbeer = 0;
5386                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5387                                 }
5388                                 MPTLOCK_2_CAMLOCK(mpt);
5389                                 xpt_done(ccb);
5390                                 CAMLOCK_2_MPTLOCK(mpt);
5391                                 break;
5392                         }
5393                         /*
5394                          * Otherwise, send status (and sense)
5395                          */
5396                         if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5397                                 sp = sense;
5398                                 memcpy(sp, &ccb->csio.sense_data,
5399                                    min(ccb->csio.sense_len, MPT_SENSE_SIZE));
5400                         }
5401                         mpt_scsi_tgt_status(mpt, ccb, req,
5402                             ccb->csio.scsi_status, sp);
5403                         break;
5404                 }
5405                 case TGT_STATE_SENDING_STATUS:
5406                 case TGT_STATE_MOVING_DATA_AND_STATUS:
5407                 {
5408                         int ioindex;
5409                         ccb = tgt->ccb;
5410
5411                         if (tgt->req == NULL) {
5412                                 panic("mpt: turbo target reply with null "
5413                                     "associated request sending status");
5414                                 /* NOTREACHED */
5415                         }
5416
5417                         if (ccb) {
5418                                 tgt->ccb = NULL;
5419                                 if (tgt->state ==
5420                                     TGT_STATE_MOVING_DATA_AND_STATUS) {
5421                                         tgt->nxfers++;
5422                                 }
5423                                 mpt_req_untimeout(req, mpt_timeout, ccb);
5424                                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5425                                         ccb->ccb_h.status |= CAM_SENT_SENSE;
5426                                 }
5427                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5428                                     "TARGET_STATUS tag %x sts %x flgs %x req "
5429                                     "%p\n", ccb->csio.tag_id, ccb->ccb_h.status,
5430                                     ccb->ccb_h.flags, tgt->req);
5431                                 /*
5432                                  * Free the Target Send Status Request
5433                                  */
5434                                 KASSERT(tgt->req->ccb == ccb,
5435                                     ("tgt->req %p:%u tgt->req->ccb %p",
5436                                     tgt->req, tgt->req->serno, tgt->req->ccb));
5437                                 /*
5438                                  * Notify CAM that we're done
5439                                  */
5440                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5441                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5442                                 KASSERT(ccb->ccb_h.status,
5443                                     ("ZERO ccb sts at %d\n", __LINE__));
5444                                 tgt->ccb = NULL;
5445                         } else {
5446                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5447                                     "TARGET_STATUS non-CAM for  req %p:%u\n",
5448                                     tgt->req, tgt->req->serno);
5449                         }
5450                         TAILQ_REMOVE(&mpt->request_pending_list,
5451                             tgt->req, links);
5452                         mpt_free_request(mpt, tgt->req);
5453                         tgt->req = NULL;
5454
5455                         /*
5456                          * And re-post the Command Buffer.
5457                          * This will reset the state.
5458                          */
5459                         ioindex = GET_IO_INDEX(reply_desc);
5460                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5461                         tgt->is_local = 0;
5462                         mpt_post_target_command(mpt, req, ioindex);
5463
5464                         /*
5465                          * And post a done for anyone who cares
5466                          */
5467                         if (ccb) {
5468                                 if (mpt->outofbeer) {
5469                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5470                                         mpt->outofbeer = 0;
5471                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5472                                 }
5473                                 MPTLOCK_2_CAMLOCK(mpt);
5474                                 xpt_done(ccb);
5475                                 CAMLOCK_2_MPTLOCK(mpt);
5476                         }
5477                         break;
5478                 }
5479                 case TGT_STATE_NIL:     /* XXX This Never Happens XXX */
5480                         tgt->state = TGT_STATE_LOADED;
5481                         break;
5482                 default:
5483                         mpt_prt(mpt, "Unknown Target State 0x%x in Context "
5484                             "Reply Function\n", tgt->state);
5485                 }
5486                 return (TRUE);
5487         }
5488
5489         status = le16toh(reply_frame->IOCStatus);
5490         if (status != MPI_IOCSTATUS_SUCCESS) {
5491                 dbg = MPT_PRT_ERROR;
5492         } else {
5493                 dbg = MPT_PRT_DEBUG1;
5494         }
5495
5496         mpt_lprt(mpt, dbg,
5497             "SCSI_TGT REPLY: req=%p:%u reply=%p func=%x IOCstatus 0x%x\n",
5498              req, req->serno, reply_frame, reply_frame->Function, status);
5499
5500         switch (reply_frame->Function) {
5501         case MPI_FUNCTION_TARGET_CMD_BUFFER_POST:
5502         {
5503                 mpt_tgt_state_t *tgt;
5504 #ifdef  INVARIANTS
5505                 mpt_req_spcl(mpt, req, "tgt reply BUFFER POST", __LINE__);
5506 #endif
5507                 if (status != MPI_IOCSTATUS_SUCCESS) {
5508                         /*
5509                          * XXX What to do?
5510                          */
5511                         break;
5512                 }
5513                 tgt = MPT_TGT_STATE(mpt, req);
5514                 KASSERT(tgt->state == TGT_STATE_LOADING,
5515                     ("bad state 0x%x on reply to buffer post\n", tgt->state));
5516                 mpt_assign_serno(mpt, req);
5517                 tgt->state = TGT_STATE_LOADED;
5518                 break;
5519         }
5520         case MPI_FUNCTION_TARGET_ASSIST:
5521 #ifdef  INVARIANTS
5522                 mpt_req_not_spcl(mpt, req, "tgt reply TARGET ASSIST", __LINE__);
5523 #endif
5524                 mpt_prt(mpt, "target assist completion\n");
5525                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5526                 mpt_free_request(mpt, req);
5527                 break;
5528         case MPI_FUNCTION_TARGET_STATUS_SEND:
5529 #ifdef  INVARIANTS
5530                 mpt_req_not_spcl(mpt, req, "tgt reply STATUS SEND", __LINE__);
5531 #endif
5532                 mpt_prt(mpt, "status send completion\n");
5533                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5534                 mpt_free_request(mpt, req);
5535                 break;
5536         case MPI_FUNCTION_TARGET_MODE_ABORT:
5537         {
5538                 PTR_MSG_TARGET_MODE_ABORT_REPLY abtrp =
5539                     (PTR_MSG_TARGET_MODE_ABORT_REPLY) reply_frame;
5540                 PTR_MSG_TARGET_MODE_ABORT abtp =
5541                     (PTR_MSG_TARGET_MODE_ABORT) req->req_vbuf;
5542                 uint32_t cc = GET_IO_INDEX(le32toh(abtp->ReplyWord));
5543 #ifdef  INVARIANTS
5544                 mpt_req_not_spcl(mpt, req, "tgt reply TMODE ABORT", __LINE__);
5545 #endif
5546                 mpt_prt(mpt, "ABORT RX_ID 0x%x Complete; status 0x%x cnt %u\n",
5547                     cc, le16toh(abtrp->IOCStatus), le32toh(abtrp->AbortCount));
5548                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5549                 mpt_free_request(mpt, req);
5550                 break;
5551         }
5552         default:
5553                 mpt_prt(mpt, "Unknown Target Address Reply Function code: "
5554                     "0x%x\n", reply_frame->Function);
5555                 break;
5556         }
5557         return (TRUE);
5558 }