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 static 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 static 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         CONFIG_PAGE_FC_PORT_1 fc;
 513         U32 fl;
 514         int r, doit = 0;
 515         int role;
 516
 517         r = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_FC_PORT, 1, 0,
 518             &fc.Header, FALSE, 5000);
 519         if (r) {
 520                 mpt_prt(mpt, "failed to read FC page 1 header\n");
 521                 return (mpt_fc_reset_link(mpt, 1));
 522         }
 523
 524         r = mpt_read_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_NVRAM, 0,
 525             &fc.Header, sizeof (fc), FALSE, 5000);
 526         if (r) {
 527                 mpt_prt(mpt, "failed to read FC page 1\n");
 528                 return (mpt_fc_reset_link(mpt, 1));
 529         }
 530         mpt2host_config_page_fc_port_1(&fc);
 531
 532         /*
 533          * Check our flags to make sure we support the role we want.
 534          */
 535         doit = 0;
 536         role = 0;
 537         fl = fc.Flags;
 538
 539         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_INIT) {
 540                 role |= MPT_ROLE_INITIATOR;
 541         }
 542         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG) {
 543                 role |= MPT_ROLE_TARGET;
 544         }
 545
 546         fl &= ~MPI_FCPORTPAGE1_FLAGS_PROT_MASK;
 547
 548         if (mpt->do_cfg_role == 0) {
 549                 role = mpt->cfg_role;
 550         } else {
 551                 mpt->do_cfg_role = 0;
 552         }
 553
 554         if (role != mpt->cfg_role) {
 555                 if (mpt->cfg_role & MPT_ROLE_INITIATOR) {
 556                         if ((role & MPT_ROLE_INITIATOR) == 0) {
 557                                 mpt_prt(mpt, "adding initiator role\n");
 558                                 fl |= MPI_FCPORTPAGE1_FLAGS_PROT_FCP_INIT;
 559                                 doit++;
 560                         } else {
 561                                 mpt_prt(mpt, "keeping initiator role\n");
 562                         }
 563                 } else if (role & MPT_ROLE_INITIATOR) {
 564                         mpt_prt(mpt, "removing initiator role\n");
 565                         doit++;
 566                 }
 567                 if (mpt->cfg_role & MPT_ROLE_TARGET) {
 568                         if ((role & MPT_ROLE_TARGET) == 0) {
 569                                 mpt_prt(mpt, "adding target role\n");
 570                                 fl |= MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG;
 571                                 doit++;
 572                         } else {
 573                                 mpt_prt(mpt, "keeping target role\n");
 574                         }
 575                 } else if (role & MPT_ROLE_TARGET) {
 576                         mpt_prt(mpt, "removing target role\n");
 577                         doit++;
 578                 }
 579                 mpt->role = mpt->cfg_role;
 580         }
 581
 582         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG) {
 583                 if ((fl & MPI_FCPORTPAGE1_FLAGS_TARGET_MODE_OXID) == 0) {
 584                         mpt_prt(mpt, "adding OXID option\n");
 585                         fl |= MPI_FCPORTPAGE1_FLAGS_TARGET_MODE_OXID;
 586                         doit++;
 587                 }
 588         }
 589
 590         if (doit) {
 591                 fc.Flags = fl;
 592                 host2mpt_config_page_fc_port_1(&fc);
 593                 r = mpt_write_cfg_page(mpt,
 594                     MPI_CONFIG_ACTION_PAGE_WRITE_NVRAM, 0, &fc.Header,
 595                     sizeof(fc), FALSE, 5000);
 596                 if (r != 0) {
 597                         mpt_prt(mpt, "failed to update NVRAM with changes\n");
 598                         return (0);
 599                 }
 600                 mpt_prt(mpt, "NOTE: NVRAM changes will not take "
 601                     "effect until next reboot or IOC reset\n");
 602         }
 603         return (0);
 604 }
 605
 606 static int
 607 mptsas_sas_io_unit_pg0(struct mpt_softc *mpt, struct mptsas_portinfo *portinfo)
 608 {
 609         ConfigExtendedPageHeader_t hdr;
 610         struct mptsas_phyinfo *phyinfo;
 611         SasIOUnitPage0_t *buffer;
 612         int error, len, i;
 613
 614         error = mpt_read_extcfg_header(mpt, MPI_SASIOUNITPAGE0_PAGEVERSION,
 615                                        0, 0, MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT,
 616                                        &hdr, 0, 10000);
 617         if (error)
 618                 goto out;
 619         if (hdr.ExtPageLength == 0) {
 620                 error = ENXIO;
 621                 goto out;
 622         }
 623
 624         len = hdr.ExtPageLength * 4;
 625         buffer = malloc(len, M_DEVBUF, M_NOWAIT|M_ZERO);
 626         if (buffer == NULL) {
 627                 error = ENOMEM;
 628                 goto out;
 629         }
 630
 631         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 632                                      0, &hdr, buffer, len, 0, 10000);
 633         if (error) {
 634                 free(buffer, M_DEVBUF);
 635                 goto out;
 636         }
 637
 638         portinfo->num_phys = buffer->NumPhys;
 639         portinfo->phy_info = malloc(sizeof(*portinfo->phy_info) *
 640             portinfo->num_phys, M_DEVBUF, M_NOWAIT|M_ZERO);
 641         if (portinfo->phy_info == NULL) {
 642                 free(buffer, M_DEVBUF);
 643                 error = ENOMEM;
 644                 goto out;
 645         }
 646
 647         for (i = 0; i < portinfo->num_phys; i++) {
 648                 phyinfo = &portinfo->phy_info[i];
 649                 phyinfo->phy_num = i;
 650                 phyinfo->port_id = buffer->PhyData[i].Port;
 651                 phyinfo->negotiated_link_rate =
 652                     buffer->PhyData[i].NegotiatedLinkRate;
 653                 phyinfo->handle =
 654                     le16toh(buffer->PhyData[i].ControllerDevHandle);
 655         }
 656
 657         free(buffer, M_DEVBUF);
 658 out:
 659         return (error);
 660 }
 661
 662 static int
 663 mptsas_sas_phy_pg0(struct mpt_softc *mpt, struct mptsas_phyinfo *phy_info,
 664         uint32_t form, uint32_t form_specific)
 665 {
 666         ConfigExtendedPageHeader_t hdr;
 667         SasPhyPage0_t *buffer;
 668         int error;
 669
 670         error = mpt_read_extcfg_header(mpt, MPI_SASPHY0_PAGEVERSION, 0, 0,
 671                                        MPI_CONFIG_EXTPAGETYPE_SAS_PHY, &hdr,
 672                                        0, 10000);
 673         if (error)
 674                 goto out;
 675         if (hdr.ExtPageLength == 0) {
 676                 error = ENXIO;
 677                 goto out;
 678         }
 679
 680         buffer = malloc(sizeof(SasPhyPage0_t), M_DEVBUF, M_NOWAIT|M_ZERO);
 681         if (buffer == NULL) {
 682                 error = ENOMEM;
 683                 goto out;
 684         }
 685
 686         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 687                                      form + form_specific, &hdr, buffer,
 688                                      sizeof(SasPhyPage0_t), 0, 10000);
 689         if (error) {
 690                 free(buffer, M_DEVBUF);
 691                 goto out;
 692         }
 693
 694         phy_info->hw_link_rate = buffer->HwLinkRate;
 695         phy_info->programmed_link_rate = buffer->ProgrammedLinkRate;
 696         phy_info->identify.dev_handle = le16toh(buffer->OwnerDevHandle);
 697         phy_info->attached.dev_handle = le16toh(buffer->AttachedDevHandle);
 698
 699         free(buffer, M_DEVBUF);
 700 out:
 701         return (error);
 702 }
 703
 704 static int
 705 mptsas_sas_device_pg0(struct mpt_softc *mpt, struct mptsas_devinfo *device_info,
 706         uint32_t form, uint32_t form_specific)
 707 {
 708         ConfigExtendedPageHeader_t hdr;
 709         SasDevicePage0_t *buffer;
 710         uint64_t sas_address;
 711         int error = 0;
 712
 713         bzero(device_info, sizeof(*device_info));
 714         error = mpt_read_extcfg_header(mpt, MPI_SASDEVICE0_PAGEVERSION, 0, 0,
 715                                        MPI_CONFIG_EXTPAGETYPE_SAS_DEVICE,
 716                                        &hdr, 0, 10000);
 717         if (error)
 718                 goto out;
 719         if (hdr.ExtPageLength == 0) {
 720                 error = ENXIO;
 721                 goto out;
 722         }
 723
 724         buffer = malloc(sizeof(SasDevicePage0_t), M_DEVBUF, M_NOWAIT|M_ZERO);
 725         if (buffer == NULL) {
 726                 error = ENOMEM;
 727                 goto out;
 728         }
 729
 730         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 731                                      form + form_specific, &hdr, buffer,
 732                                      sizeof(SasDevicePage0_t), 0, 10000);
 733         if (error) {
 734                 free(buffer, M_DEVBUF);
 735                 goto out;
 736         }
 737
 738         device_info->dev_handle = le16toh(buffer->DevHandle);
 739         device_info->parent_dev_handle = le16toh(buffer->ParentDevHandle);
 740         device_info->enclosure_handle = le16toh(buffer->EnclosureHandle);
 741         device_info->slot = le16toh(buffer->Slot);
 742         device_info->phy_num = buffer->PhyNum;
 743         device_info->physical_port = buffer->PhysicalPort;
 744         device_info->target_id = buffer->TargetID;
 745         device_info->bus = buffer->Bus;
 746         bcopy(&buffer->SASAddress, &sas_address, sizeof(uint64_t));
 747         device_info->sas_address = le64toh(sas_address);
 748         device_info->device_info = le32toh(buffer->DeviceInfo);
 749
 750         free(buffer, M_DEVBUF);
 751 out:
 752         return (error);
 753 }
 754
 755 /*
 756  * Read SAS configuration information. Nothing to do yet.
 757  */
 758 static int
 759 mpt_read_config_info_sas(struct mpt_softc *mpt)
 760 {
 761         struct mptsas_portinfo *portinfo;
 762         struct mptsas_phyinfo *phyinfo;
 763         int error, i;
 764
 765         portinfo = malloc(sizeof(*portinfo), M_DEVBUF, M_NOWAIT|M_ZERO);
 766         if (portinfo == NULL)
 767                 return (ENOMEM);
 768
 769         error = mptsas_sas_io_unit_pg0(mpt, portinfo);
 770         if (error) {
 771                 free(portinfo, M_DEVBUF);
 772                 return (0);
 773         }
 774
 775         for (i = 0; i < portinfo->num_phys; i++) {
 776                 phyinfo = &portinfo->phy_info[i];
 777                 error = mptsas_sas_phy_pg0(mpt, phyinfo,
 778                     (MPI_SAS_PHY_PGAD_FORM_PHY_NUMBER <<
 779                     MPI_SAS_PHY_PGAD_FORM_SHIFT), i);
 780                 if (error)
 781                         break;
 782                 error = mptsas_sas_device_pg0(mpt, &phyinfo->identify,
 783                     (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
 784                     MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
 785                     phyinfo->handle);
 786                 if (error)
 787                         break;
 788                 phyinfo->identify.phy_num = phyinfo->phy_num = i;
 789                 if (phyinfo->attached.dev_handle)
 790                         error = mptsas_sas_device_pg0(mpt,
 791                             &phyinfo->attached,
 792                             (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
 793                             MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
 794                             phyinfo->attached.dev_handle);
 795                 if (error)
 796                         break;
 797         }
 798         mpt->sas_portinfo = portinfo;
 799         return (0);
 800 }
 801
 802 static void
 803 mptsas_set_sata_wc(struct mpt_softc *mpt, struct mptsas_devinfo *devinfo,
 804         int enabled)
 805 {
 806         SataPassthroughRequest_t        *pass;
 807         request_t *req;
 808         int error, status;
 809
 810         req = mpt_get_request(mpt, 0);
 811         if (req == NULL)
 812                 return;
 813
 814         pass = req->req_vbuf;
 815         bzero(pass, sizeof(SataPassthroughRequest_t));
 816         pass->Function = MPI_FUNCTION_SATA_PASSTHROUGH;
 817         pass->TargetID = devinfo->target_id;
 818         pass->Bus = devinfo->bus;
 819         pass->PassthroughFlags = 0;
 820         pass->ConnectionRate = MPI_SATA_PT_REQ_CONNECT_RATE_NEGOTIATED;
 821         pass->DataLength = 0;
 822         pass->MsgContext = htole32(req->index | sata_pass_handler_id);
 823         pass->CommandFIS[0] = 0x27;
 824         pass->CommandFIS[1] = 0x80;
 825         pass->CommandFIS[2] = 0xef;
 826         pass->CommandFIS[3] = (enabled) ? 0x02 : 0x82;
 827         pass->CommandFIS[7] = 0x40;
 828         pass->CommandFIS[15] = 0x08;
 829
 830         mpt_check_doorbell(mpt);
 831         mpt_send_cmd(mpt, req);
 832         error = mpt_wait_req(mpt, req, REQ_STATE_DONE, REQ_STATE_DONE, 0,
 833                              10 * 1000);
 834         if (error) {
 835                 mpt_free_request(mpt, req);
 836                 printf("error %d sending passthrough\n", error);
 837                 return;
 838         }
 839
 840         status = le16toh(req->IOCStatus);
 841         if (status != MPI_IOCSTATUS_SUCCESS) {
 842                 mpt_free_request(mpt, req);
 843                 printf("IOCSTATUS %d\n", status);
 844                 return;
 845         }
 846
 847         mpt_free_request(mpt, req);
 848 }
 849
 850 /*
 851  * Set SAS configuration information. Nothing to do yet.
 852  */
 853 static int
 854 mpt_set_initial_config_sas(struct mpt_softc *mpt)
 855 {
 856         struct mptsas_phyinfo *phyinfo;
 857         int i;
 858
 859         if ((mpt_enable_sata_wc != -1) && (mpt->sas_portinfo != NULL)) {
 860                 for (i = 0; i < mpt->sas_portinfo->num_phys; i++) {
 861                         phyinfo = &mpt->sas_portinfo->phy_info[i];
 862                         if (phyinfo->attached.dev_handle == 0)
 863                                 continue;
 864                         if ((phyinfo->attached.device_info &
 865                             MPI_SAS_DEVICE_INFO_SATA_DEVICE) == 0)
 866                                 continue;
 867                         if (bootverbose)
 868                                 device_printf(mpt->dev,
 869                                     "%sabling SATA WC on phy %d\n",
 870                                     (mpt_enable_sata_wc) ? "En" : "Dis", i);
 871                         mptsas_set_sata_wc(mpt, &phyinfo->attached,
 872                                            mpt_enable_sata_wc);
 873                 }
 874         }
 875
 876         return (0);
 877 }
 878
 879 static int
 880 mpt_sata_pass_reply_handler(struct mpt_softc *mpt, request_t *req,
 881  uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
 882 {
 883
 884         if (req != NULL) {
 885                 if (reply_frame != NULL) {
 886                         req->IOCStatus = le16toh(reply_frame->IOCStatus);
 887                 }
 888                 req->state &= ~REQ_STATE_QUEUED;
 889                 req->state |= REQ_STATE_DONE;
 890                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
 891                 if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
 892                         wakeup(req);
 893                 } else if ((req->state & REQ_STATE_TIMEDOUT) != 0) {
 894                         /*
 895                          * Whew- we can free this request (late completion)
 896                          */
 897                         mpt_free_request(mpt, req);
 898                 }
 899         }
 900
 901         return (TRUE);
 902 }
 903
 904 /*
 905  * Read SCSI configuration information
 906  */
 907 static int
 908 mpt_read_config_info_spi(struct mpt_softc *mpt)
 909 {
 910         int rv, i;
 911
 912         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 0, 0,
 913             &mpt->mpt_port_page0.Header, FALSE, 5000);
 914         if (rv) {
 915                 return (-1);
 916         }
 917         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 0 Header: %x %x %x %x\n",
 918             mpt->mpt_port_page0.Header.PageVersion,
 919             mpt->mpt_port_page0.Header.PageLength,
 920             mpt->mpt_port_page0.Header.PageNumber,
 921             mpt->mpt_port_page0.Header.PageType);
 922
 923         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 1, 0,
 924             &mpt->mpt_port_page1.Header, FALSE, 5000);
 925         if (rv) {
 926                 return (-1);
 927         }
 928         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 1 Header: %x %x %x %x\n",
 929             mpt->mpt_port_page1.Header.PageVersion,
 930             mpt->mpt_port_page1.Header.PageLength,
 931             mpt->mpt_port_page1.Header.PageNumber,
 932             mpt->mpt_port_page1.Header.PageType);
 933
 934         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 2, 0,
 935             &mpt->mpt_port_page2.Header, FALSE, 5000);
 936         if (rv) {
 937                 return (-1);
 938         }
 939         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 2 Header: %x %x %x %x\n",
 940             mpt->mpt_port_page2.Header.PageVersion,
 941             mpt->mpt_port_page2.Header.PageLength,
 942             mpt->mpt_port_page2.Header.PageNumber,
 943             mpt->mpt_port_page2.Header.PageType);
 944
 945         for (i = 0; i < 16; i++) {
 946                 rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
 947                     0, i, &mpt->mpt_dev_page0[i].Header, FALSE, 5000);
 948                 if (rv) {
 949                         return (-1);
 950                 }
 951                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 952                     "SPI Target %d Device Page 0 Header: %x %x %x %x\n", i,
 953                     mpt->mpt_dev_page0[i].Header.PageVersion,
 954                     mpt->mpt_dev_page0[i].Header.PageLength,
 955                     mpt->mpt_dev_page0[i].Header.PageNumber,
 956                     mpt->mpt_dev_page0[i].Header.PageType);
 957
 958                 rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
 959                     1, i, &mpt->mpt_dev_page1[i].Header, FALSE, 5000);
 960                 if (rv) {
 961                         return (-1);
 962                 }
 963                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 964                     "SPI Target %d Device Page 1 Header: %x %x %x %x\n", i,
 965                     mpt->mpt_dev_page1[i].Header.PageVersion,
 966                     mpt->mpt_dev_page1[i].Header.PageLength,
 967                     mpt->mpt_dev_page1[i].Header.PageNumber,
 968                     mpt->mpt_dev_page1[i].Header.PageType);
 969         }
 970
 971         /*
 972          * At this point, we don't *have* to fail. As long as we have
 973          * valid config header information, we can (barely) lurch
 974          * along.
 975          */
 976
 977         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page0.Header,
 978             sizeof(mpt->mpt_port_page0), FALSE, 5000);
 979         if (rv) {
 980                 mpt_prt(mpt, "failed to read SPI Port Page 0\n");
 981         } else {
 982                 mpt2host_config_page_scsi_port_0(&mpt->mpt_port_page0);
 983                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
 984                     "SPI Port Page 0: Capabilities %x PhysicalInterface %x\n",
 985                     mpt->mpt_port_page0.Capabilities,
 986                     mpt->mpt_port_page0.PhysicalInterface);
 987         }
 988
 989         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page1.Header,
 990             sizeof(mpt->mpt_port_page1), FALSE, 5000);
 991         if (rv) {
 992                 mpt_prt(mpt, "failed to read SPI Port Page 1\n");
 993         } else {
 994                 mpt2host_config_page_scsi_port_1(&mpt->mpt_port_page1);
 995                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 996                     "SPI Port Page 1: Configuration %x OnBusTimerValue %x\n",
 997                     mpt->mpt_port_page1.Configuration,
 998                     mpt->mpt_port_page1.OnBusTimerValue);
 999         }
1000
1001         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page2.Header,
1002             sizeof(mpt->mpt_port_page2), FALSE, 5000);
1003         if (rv) {
1004                 mpt_prt(mpt, "failed to read SPI Port Page 2\n");
1005         } else {
1006                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1007                     "Port Page 2: Flags %x Settings %x\n",
1008                     mpt->mpt_port_page2.PortFlags,
1009                     mpt->mpt_port_page2.PortSettings);
1010                 mpt2host_config_page_scsi_port_2(&mpt->mpt_port_page2);
1011                 for (i = 0; i < 16; i++) {
1012                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1013                             " Port Page 2 Tgt %d: timo %x SF %x Flags %x\n",
1014                             i, mpt->mpt_port_page2.DeviceSettings[i].Timeout,
1015                             mpt->mpt_port_page2.DeviceSettings[i].SyncFactor,
1016                             mpt->mpt_port_page2.DeviceSettings[i].DeviceFlags);
1017                 }
1018         }
1019
1020         for (i = 0; i < 16; i++) {
1021                 rv = mpt_read_cur_cfg_page(mpt, i,
1022                     &mpt->mpt_dev_page0[i].Header, sizeof(*mpt->mpt_dev_page0),
1023                     FALSE, 5000);
1024                 if (rv) {
1025                         mpt_prt(mpt,
1026                             "cannot read SPI Target %d Device Page 0\n", i);
1027                         continue;
1028                 }
1029                 mpt2host_config_page_scsi_device_0(&mpt->mpt_dev_page0[i]);
1030                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1031                     "target %d page 0: Negotiated Params %x Information %x\n",
1032                     i, mpt->mpt_dev_page0[i].NegotiatedParameters,
1033                     mpt->mpt_dev_page0[i].Information);
1034
1035                 rv = mpt_read_cur_cfg_page(mpt, i,
1036                     &mpt->mpt_dev_page1[i].Header, sizeof(*mpt->mpt_dev_page1),
1037                     FALSE, 5000);
1038                 if (rv) {
1039                         mpt_prt(mpt,
1040                             "cannot read SPI Target %d Device Page 1\n", i);
1041                         continue;
1042                 }
1043                 mpt2host_config_page_scsi_device_1(&mpt->mpt_dev_page1[i]);
1044                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1045                     "target %d page 1: Requested Params %x Configuration %x\n",
1046                     i, mpt->mpt_dev_page1[i].RequestedParameters,
1047                     mpt->mpt_dev_page1[i].Configuration);
1048         }
1049         return (0);
1050 }
1051
1052 /*
1053  * Validate SPI configuration information.
1054  *
1055  * In particular, validate SPI Port Page 1.
1056  */
1057 static int
1058 mpt_set_initial_config_spi(struct mpt_softc *mpt)
1059 {
1060         int error, i, pp1val;
1061
1062         mpt->mpt_disc_enable = 0xff;
1063         mpt->mpt_tag_enable = 0;
1064
1065         pp1val = ((1 << mpt->mpt_ini_id) <<
1066             MPI_SCSIPORTPAGE1_CFG_SHIFT_PORT_RESPONSE_ID) | mpt->mpt_ini_id;
1067         if (mpt->mpt_port_page1.Configuration != pp1val) {
1068                 CONFIG_PAGE_SCSI_PORT_1 tmp;
1069
1070                 mpt_prt(mpt, "SPI Port Page 1 Config value bad (%x)- should "
1071                     "be %x\n", mpt->mpt_port_page1.Configuration, pp1val);
1072                 tmp = mpt->mpt_port_page1;
1073                 tmp.Configuration = pp1val;
1074                 host2mpt_config_page_scsi_port_1(&tmp);
1075                 error = mpt_write_cur_cfg_page(mpt, 0,
1076                     &tmp.Header, sizeof(tmp), FALSE, 5000);
1077                 if (error) {
1078                         return (-1);
1079                 }
1080                 error = mpt_read_cur_cfg_page(mpt, 0,
1081                     &tmp.Header, sizeof(tmp), FALSE, 5000);
1082                 if (error) {
1083                         return (-1);
1084                 }
1085                 mpt2host_config_page_scsi_port_1(&tmp);
1086                 if (tmp.Configuration != pp1val) {
1087                         mpt_prt(mpt,
1088                             "failed to reset SPI Port Page 1 Config value\n");
1089                         return (-1);
1090                 }
1091                 mpt->mpt_port_page1 = tmp;
1092         }
1093
1094         /*
1095          * The purpose of this exercise is to get
1096          * all targets back to async/narrow.
1097          *
1098          * We skip this step if the BIOS has already negotiated
1099          * speeds with the targets.
1100          */
1101         i = mpt->mpt_port_page2.PortSettings &
1102             MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
1103         if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS) {
1104                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1105                     "honoring BIOS transfer negotiations\n");
1106         } else {
1107                 for (i = 0; i < 16; i++) {
1108                         mpt->mpt_dev_page1[i].RequestedParameters = 0;
1109                         mpt->mpt_dev_page1[i].Configuration = 0;
1110                         (void) mpt_update_spi_config(mpt, i);
1111                 }
1112         }
1113         return (0);
1114 }
1115
1116 static int
1117 mpt_cam_enable(struct mpt_softc *mpt)
1118 {
1119         int error;
1120
1121         MPT_LOCK(mpt);
1122
1123         error = EIO;
1124         if (mpt->is_fc) {
1125                 if (mpt_read_config_info_fc(mpt)) {
1126                         goto out;
1127                 }
1128                 if (mpt_set_initial_config_fc(mpt)) {
1129                         goto out;
1130                 }
1131         } else if (mpt->is_sas) {
1132                 if (mpt_read_config_info_sas(mpt)) {
1133                         goto out;
1134                 }
1135                 if (mpt_set_initial_config_sas(mpt)) {
1136                         goto out;
1137                 }
1138         } else if (mpt->is_spi) {
1139                 if (mpt_read_config_info_spi(mpt)) {
1140                         goto out;
1141                 }
1142                 if (mpt_set_initial_config_spi(mpt)) {
1143                         goto out;
1144                 }
1145         }
1146         error = 0;
1147
1148 out:
1149         MPT_UNLOCK(mpt);
1150         return (error);
1151 }
1152
1153 static void
1154 mpt_cam_ready(struct mpt_softc *mpt)
1155 {
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 static 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
1209         if (mpt->sim != NULL) {
1210                 xpt_free_path(mpt->path);
1211                 xpt_bus_deregister(cam_sim_path(mpt->sim));
1212                 cam_sim_free(mpt->sim, TRUE);
1213                 mpt->sim = NULL;
1214         }
1215
1216         if (mpt->phydisk_sim != NULL) {
1217                 xpt_free_path(mpt->phydisk_path);
1218                 xpt_bus_deregister(cam_sim_path(mpt->phydisk_sim));
1219                 cam_sim_free(mpt->phydisk_sim, TRUE);
1220                 mpt->phydisk_sim = NULL;
1221         }
1222         MPT_UNLOCK(mpt);
1223 }
1224
1225 /* This routine is used after a system crash to dump core onto the swap device.
1226  */
1227 static void
1228 mpt_poll(struct cam_sim *sim)
1229 {
1230         struct mpt_softc *mpt;
1231
1232         mpt = (struct mpt_softc *)cam_sim_softc(sim);
1233         mpt_intr(mpt);
1234 }
1235
1236 /*
1237  * Watchdog timeout routine for SCSI requests.
1238  */
1239 static void
1240 mpt_timeout(void *arg)
1241 {
1242         union ccb        *ccb;
1243         struct mpt_softc *mpt;
1244         request_t        *req;
1245
1246         ccb = (union ccb *)arg;
1247         mpt = ccb->ccb_h.ccb_mpt_ptr;
1248
1249 #if __FreeBSD_version < 500000
1250         MPT_LOCK(mpt);
1251 #endif
1252         MPT_LOCK_ASSERT(mpt);
1253         req = ccb->ccb_h.ccb_req_ptr;
1254         mpt_prt(mpt, "request %p:%u timed out for ccb %p (req->ccb %p)\n", req,
1255             req->serno, ccb, req->ccb);
1256 /* XXX: WHAT ARE WE TRYING TO DO HERE? */
1257         if ((req->state & REQ_STATE_QUEUED) == REQ_STATE_QUEUED) {
1258                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
1259                 TAILQ_INSERT_TAIL(&mpt->request_timeout_list, req, links);
1260                 req->state |= REQ_STATE_TIMEDOUT;
1261                 mpt_wakeup_recovery_thread(mpt);
1262         }
1263 #if __FreeBSD_version < 500000
1264         MPT_UNLOCK(mpt);
1265 #endif
1266 }
1267
1268 /*
1269  * Callback routine from "bus_dmamap_load" or, in simple cases, called directly.
1270  *
1271  * Takes a list of physical segments and builds the SGL for SCSI IO command
1272  * and forwards the commard to the IOC after one last check that CAM has not
1273  * aborted the transaction.
1274  */
1275 static void
1276 mpt_execute_req_a64(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1277 {
1278         request_t *req, *trq;
1279         char *mpt_off;
1280         union ccb *ccb;
1281         struct mpt_softc *mpt;
1282         int seg, first_lim;
1283         uint32_t flags, nxt_off;
1284         void *sglp = NULL;
1285         MSG_REQUEST_HEADER *hdrp;
1286         SGE_SIMPLE64 *se;
1287         SGE_CHAIN64 *ce;
1288         int istgt = 0;
1289
1290         req = (request_t *)arg;
1291         ccb = req->ccb;
1292
1293         mpt = ccb->ccb_h.ccb_mpt_ptr;
1294         req = ccb->ccb_h.ccb_req_ptr;
1295
1296         hdrp = req->req_vbuf;
1297         mpt_off = req->req_vbuf;
1298
1299         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1300                 error = EFBIG;
1301         }
1302
1303         if (error == 0) {
1304                 switch (hdrp->Function) {
1305                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1306                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1307                         istgt = 0;
1308                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1309                         break;
1310                 case MPI_FUNCTION_TARGET_ASSIST:
1311                         istgt = 1;
1312                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1313                         break;
1314                 default:
1315                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req_a64\n",
1316                             hdrp->Function);
1317                         error = EINVAL;
1318                         break;
1319                 }
1320         }
1321
1322         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1323                 error = EFBIG;
1324                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1325                     nseg, mpt->max_seg_cnt);
1326         }
1327
1328 bad:
1329         if (error != 0) {
1330                 if (error != EFBIG && error != ENOMEM) {
1331                         mpt_prt(mpt, "mpt_execute_req_a64: err %d\n", error);
1332                 }
1333                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1334                         cam_status status;
1335                         mpt_freeze_ccb(ccb);
1336                         if (error == EFBIG) {
1337                                 status = CAM_REQ_TOO_BIG;
1338                         } else if (error == ENOMEM) {
1339                                 if (mpt->outofbeer == 0) {
1340                                         mpt->outofbeer = 1;
1341                                         xpt_freeze_simq(mpt->sim, 1);
1342                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1343                                             "FREEZEQ\n");
1344                                 }
1345                                 status = CAM_REQUEUE_REQ;
1346                         } else {
1347                                 status = CAM_REQ_CMP_ERR;
1348                         }
1349                         mpt_set_ccb_status(ccb, status);
1350                 }
1351                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1352                         request_t *cmd_req =
1353                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1354                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1355                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1356                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1357                 }
1358                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1359                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1360                 xpt_done(ccb);
1361                 CAMLOCK_2_MPTLOCK(mpt);
1362                 mpt_free_request(mpt, req);
1363                 MPTLOCK_2_CAMLOCK(mpt);
1364                 return;
1365         }
1366
1367         /*
1368          * No data to transfer?
1369          * Just make a single simple SGL with zero length.
1370          */
1371
1372         if (mpt->verbose >= MPT_PRT_DEBUG) {
1373                 int tidx = ((char *)sglp) - mpt_off;
1374                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1375         }
1376
1377         if (nseg == 0) {
1378                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1379                 MPI_pSGE_SET_FLAGS(se1,
1380                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1381                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1382                 se1->FlagsLength = htole32(se1->FlagsLength);
1383                 goto out;
1384         }
1385
1386
1387         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1388         if (istgt == 0) {
1389                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1390                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1391                 }
1392         } else {
1393                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1394                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1395                 }
1396         }
1397
1398         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1399                 bus_dmasync_op_t op;
1400                 if (istgt == 0) {
1401                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1402                                 op = BUS_DMASYNC_PREREAD;
1403                         } else {
1404                                 op = BUS_DMASYNC_PREWRITE;
1405                         }
1406                 } else {
1407                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1408                                 op = BUS_DMASYNC_PREWRITE;
1409                         } else {
1410                                 op = BUS_DMASYNC_PREREAD;
1411                         }
1412                 }
1413                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1414         }
1415
1416         /*
1417          * Okay, fill in what we can at the end of the command frame.
1418          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1419          * the command frame.
1420          *
1421          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1422          * SIMPLE64 pointers and start doing CHAIN64 entries after
1423          * that.
1424          */
1425
1426         if (nseg < MPT_NSGL_FIRST(mpt)) {
1427                 first_lim = nseg;
1428         } else {
1429                 /*
1430                  * Leave room for CHAIN element
1431                  */
1432                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1433         }
1434
1435         se = (SGE_SIMPLE64 *) sglp;
1436         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1437                 uint32_t tf;
1438
1439                 memset(se, 0, sizeof (*se));
1440                 se->Address.Low = htole32(dm_segs->ds_addr & 0xffffffff);
1441                 if (sizeof(bus_addr_t) > 4) {
1442                         se->Address.High =
1443                             htole32(((uint64_t)dm_segs->ds_addr) >> 32);
1444                 }
1445                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1446                 tf = flags;
1447                 if (seg == first_lim - 1) {
1448                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1449                 }
1450                 if (seg == nseg - 1) {
1451                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1452                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1453                 }
1454                 MPI_pSGE_SET_FLAGS(se, tf);
1455                 se->FlagsLength = htole32(se->FlagsLength);
1456         }
1457
1458         if (seg == nseg) {
1459                 goto out;
1460         }
1461
1462         /*
1463          * Tell the IOC where to find the first chain element.
1464          */
1465         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1466         nxt_off = MPT_RQSL(mpt);
1467         trq = req;
1468
1469         /*
1470          * Make up the rest of the data segments out of a chain element
1471          * (contiained in the current request frame) which points to
1472          * SIMPLE64 elements in the next request frame, possibly ending
1473          * with *another* chain element (if there's more).
1474          */
1475         while (seg < nseg) {
1476                 int this_seg_lim;
1477                 uint32_t tf, cur_off;
1478                 bus_addr_t chain_list_addr;
1479
1480                 /*
1481                  * Point to the chain descriptor. Note that the chain
1482                  * descriptor is at the end of the *previous* list (whether
1483                  * chain or simple).
1484                  */
1485                 ce = (SGE_CHAIN64 *) se;
1486
1487                 /*
1488                  * Before we change our current pointer, make  sure we won't
1489                  * overflow the request area with this frame. Note that we
1490                  * test against 'greater than' here as it's okay in this case
1491                  * to have next offset be just outside the request area.
1492                  */
1493                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1494                         nxt_off = MPT_REQUEST_AREA;
1495                         goto next_chain;
1496                 }
1497
1498                 /*
1499                  * Set our SGE element pointer to the beginning of the chain
1500                  * list and update our next chain list offset.
1501                  */
1502                 se = (SGE_SIMPLE64 *) &mpt_off[nxt_off];
1503                 cur_off = nxt_off;
1504                 nxt_off += MPT_RQSL(mpt);
1505
1506                 /*
1507                  * Now initialized the chain descriptor.
1508                  */
1509                 memset(ce, 0, sizeof (*ce));
1510
1511                 /*
1512                  * Get the physical address of the chain list.
1513                  */
1514                 chain_list_addr = trq->req_pbuf;
1515                 chain_list_addr += cur_off;
1516                 if (sizeof (bus_addr_t) > 4) {
1517                         ce->Address.High =
1518                             htole32(((uint64_t)chain_list_addr) >> 32);
1519                 }
1520                 ce->Address.Low = htole32(chain_list_addr & 0xffffffff);
1521                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT |
1522                             MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1523
1524                 /*
1525                  * If we have more than a frame's worth of segments left,
1526                  * set up the chain list to have the last element be another
1527                  * chain descriptor.
1528                  */
1529                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1530                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1531                         /*
1532                          * The length of the chain is the length in bytes of the
1533                          * number of segments plus the next chain element.
1534                          *
1535                          * The next chain descriptor offset is the length,
1536                          * in words, of the number of segments.
1537                          */
1538                         ce->Length = (this_seg_lim - seg) *
1539                             sizeof (SGE_SIMPLE64);
1540                         ce->NextChainOffset = ce->Length >> 2;
1541                         ce->Length += sizeof (SGE_CHAIN64);
1542                 } else {
1543                         this_seg_lim = nseg;
1544                         ce->Length = (this_seg_lim - seg) *
1545                             sizeof (SGE_SIMPLE64);
1546                 }
1547                 ce->Length = htole16(ce->Length);
1548
1549                 /*
1550                  * Fill in the chain list SGE elements with our segment data.
1551                  *
1552                  * If we're the last element in this chain list, set the last
1553                  * element flag. If we're the completely last element period,
1554                  * set the end of list and end of buffer flags.
1555                  */
1556                 while (seg < this_seg_lim) {
1557                         memset(se, 0, sizeof (*se));
1558                         se->Address.Low = htole32(dm_segs->ds_addr &
1559                             0xffffffff);
1560                         if (sizeof (bus_addr_t) > 4) {
1561                                 se->Address.High =
1562                                     htole32(((uint64_t)dm_segs->ds_addr) >> 32);
1563                         }
1564                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1565                         tf = flags;
1566                         if (seg ==  this_seg_lim - 1) {
1567                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1568                         }
1569                         if (seg == nseg - 1) {
1570                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1571                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1572                         }
1573                         MPI_pSGE_SET_FLAGS(se, tf);
1574                         se->FlagsLength = htole32(se->FlagsLength);
1575                         se++;
1576                         seg++;
1577                         dm_segs++;
1578                 }
1579
1580     next_chain:
1581                 /*
1582                  * If we have more segments to do and we've used up all of
1583                  * the space in a request area, go allocate another one
1584                  * and chain to that.
1585                  */
1586                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1587                         request_t *nrq;
1588
1589                         CAMLOCK_2_MPTLOCK(mpt);
1590                         nrq = mpt_get_request(mpt, FALSE);
1591                         MPTLOCK_2_CAMLOCK(mpt);
1592
1593                         if (nrq == NULL) {
1594                                 error = ENOMEM;
1595                                 goto bad;
1596                         }
1597
1598                         /*
1599                          * Append the new request area on the tail of our list.
1600                          */
1601                         if ((trq = req->chain) == NULL) {
1602                                 req->chain = nrq;
1603                         } else {
1604                                 while (trq->chain != NULL) {
1605                                         trq = trq->chain;
1606                                 }
1607                                 trq->chain = nrq;
1608                         }
1609                         trq = nrq;
1610                         mpt_off = trq->req_vbuf;
1611                         if (mpt->verbose >= MPT_PRT_DEBUG) {
1612                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
1613                         }
1614                         nxt_off = 0;
1615                 }
1616         }
1617 out:
1618
1619         /*
1620          * Last time we need to check if this CCB needs to be aborted.
1621          */
1622         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1623                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1624                         request_t *cmd_req =
1625                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1626                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1627                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1628                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1629                 }
1630                 mpt_prt(mpt,
1631                     "mpt_execute_req_a64: I/O cancelled (status 0x%x)\n",
1632                     ccb->ccb_h.status & CAM_STATUS_MASK);
1633                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
1634                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
1635                 }
1636                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1637                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1638                 xpt_done(ccb);
1639                 CAMLOCK_2_MPTLOCK(mpt);
1640                 mpt_free_request(mpt, req);
1641                 MPTLOCK_2_CAMLOCK(mpt);
1642                 return;
1643         }
1644
1645         ccb->ccb_h.status |= CAM_SIM_QUEUED;
1646         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
1647                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
1648                     mpt_timeout, ccb);
1649         }
1650         if (mpt->verbose > MPT_PRT_DEBUG) {
1651                 int nc = 0;
1652                 mpt_print_request(req->req_vbuf);
1653                 for (trq = req->chain; trq; trq = trq->chain) {
1654                         printf("  Additional Chain Area %d\n", nc++);
1655                         mpt_dump_sgl(trq->req_vbuf, 0);
1656                 }
1657         }
1658
1659         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1660                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1661                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
1662 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
1663                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
1664                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
1665                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
1666                 } else {
1667                         tgt->state = TGT_STATE_MOVING_DATA;
1668                 }
1669 #else
1670                 tgt->state = TGT_STATE_MOVING_DATA;
1671 #endif
1672         }
1673         CAMLOCK_2_MPTLOCK(mpt);
1674         mpt_send_cmd(mpt, req);
1675         MPTLOCK_2_CAMLOCK(mpt);
1676 }
1677
1678 static void
1679 mpt_execute_req(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1680 {
1681         request_t *req, *trq;
1682         char *mpt_off;
1683         union ccb *ccb;
1684         struct mpt_softc *mpt;
1685         int seg, first_lim;
1686         uint32_t flags, nxt_off;
1687         void *sglp = NULL;
1688         MSG_REQUEST_HEADER *hdrp;
1689         SGE_SIMPLE32 *se;
1690         SGE_CHAIN32 *ce;
1691         int istgt = 0;
1692
1693         req = (request_t *)arg;
1694         ccb = req->ccb;
1695
1696         mpt = ccb->ccb_h.ccb_mpt_ptr;
1697         req = ccb->ccb_h.ccb_req_ptr;
1698
1699         hdrp = req->req_vbuf;
1700         mpt_off = req->req_vbuf;
1701
1702
1703         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1704                 error = EFBIG;
1705         }
1706
1707         if (error == 0) {
1708                 switch (hdrp->Function) {
1709                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1710                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1711                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1712                         break;
1713                 case MPI_FUNCTION_TARGET_ASSIST:
1714                         istgt = 1;
1715                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1716                         break;
1717                 default:
1718                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req\n",
1719                             hdrp->Function);
1720                         error = EINVAL;
1721                         break;
1722                 }
1723         }
1724
1725         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1726                 error = EFBIG;
1727                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1728                     nseg, mpt->max_seg_cnt);
1729         }
1730
1731 bad:
1732         if (error != 0) {
1733                 if (error != EFBIG && error != ENOMEM) {
1734                         mpt_prt(mpt, "mpt_execute_req: err %d\n", error);
1735                 }
1736                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1737                         cam_status status;
1738                         mpt_freeze_ccb(ccb);
1739                         if (error == EFBIG) {
1740                                 status = CAM_REQ_TOO_BIG;
1741                         } else if (error == ENOMEM) {
1742                                 if (mpt->outofbeer == 0) {
1743                                         mpt->outofbeer = 1;
1744                                         xpt_freeze_simq(mpt->sim, 1);
1745                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1746                                             "FREEZEQ\n");
1747                                 }
1748                                 status = CAM_REQUEUE_REQ;
1749                         } else {
1750                                 status = CAM_REQ_CMP_ERR;
1751                         }
1752                         mpt_set_ccb_status(ccb, status);
1753                 }
1754                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1755                         request_t *cmd_req =
1756                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1757                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1758                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1759                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1760                 }
1761                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1762                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1763                 xpt_done(ccb);
1764                 CAMLOCK_2_MPTLOCK(mpt);
1765                 mpt_free_request(mpt, req);
1766                 MPTLOCK_2_CAMLOCK(mpt);
1767                 return;
1768         }
1769
1770         /*
1771          * No data to transfer?
1772          * Just make a single simple SGL with zero length.
1773          */
1774
1775         if (mpt->verbose >= MPT_PRT_DEBUG) {
1776                 int tidx = ((char *)sglp) - mpt_off;
1777                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1778         }
1779
1780         if (nseg == 0) {
1781                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1782                 MPI_pSGE_SET_FLAGS(se1,
1783                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1784                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1785                 se1->FlagsLength = htole32(se1->FlagsLength);
1786                 goto out;
1787         }
1788
1789
1790         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
1791         if (istgt == 0) {
1792                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1793                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1794                 }
1795         } else {
1796                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1797                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1798                 }
1799         }
1800
1801         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1802                 bus_dmasync_op_t op;
1803                 if (istgt) {
1804                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1805                                 op = BUS_DMASYNC_PREREAD;
1806                         } else {
1807                                 op = BUS_DMASYNC_PREWRITE;
1808                         }
1809                 } else {
1810                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1811                                 op = BUS_DMASYNC_PREWRITE;
1812                         } else {
1813                                 op = BUS_DMASYNC_PREREAD;
1814                         }
1815                 }
1816                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1817         }
1818
1819         /*
1820          * Okay, fill in what we can at the end of the command frame.
1821          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1822          * the command frame.
1823          *
1824          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1825          * SIMPLE32 pointers and start doing CHAIN32 entries after
1826          * that.
1827          */
1828
1829         if (nseg < MPT_NSGL_FIRST(mpt)) {
1830                 first_lim = nseg;
1831         } else {
1832                 /*
1833                  * Leave room for CHAIN element
1834                  */
1835                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1836         }
1837
1838         se = (SGE_SIMPLE32 *) sglp;
1839         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1840                 uint32_t tf;
1841
1842                 memset(se, 0,sizeof (*se));
1843                 se->Address = htole32(dm_segs->ds_addr);
1844
1845                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1846                 tf = flags;
1847                 if (seg == first_lim - 1) {
1848                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1849                 }
1850                 if (seg == nseg - 1) {
1851                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1852                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1853                 }
1854                 MPI_pSGE_SET_FLAGS(se, tf);
1855                 se->FlagsLength = htole32(se->FlagsLength);
1856         }
1857
1858         if (seg == nseg) {
1859                 goto out;
1860         }
1861
1862         /*
1863          * Tell the IOC where to find the first chain element.
1864          */
1865         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1866         nxt_off = MPT_RQSL(mpt);
1867         trq = req;
1868
1869         /*
1870          * Make up the rest of the data segments out of a chain element
1871          * (contiained in the current request frame) which points to
1872          * SIMPLE32 elements in the next request frame, possibly ending
1873          * with *another* chain element (if there's more).
1874          */
1875         while (seg < nseg) {
1876                 int this_seg_lim;
1877                 uint32_t tf, cur_off;
1878                 bus_addr_t chain_list_addr;
1879
1880                 /*
1881                  * Point to the chain descriptor. Note that the chain
1882                  * descriptor is at the end of the *previous* list (whether
1883                  * chain or simple).
1884                  */
1885                 ce = (SGE_CHAIN32 *) se;
1886
1887                 /*
1888                  * Before we change our current pointer, make  sure we won't
1889                  * overflow the request area with this frame. Note that we
1890                  * test against 'greater than' here as it's okay in this case
1891                  * to have next offset be just outside the request area.
1892                  */
1893                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1894                         nxt_off = MPT_REQUEST_AREA;
1895                         goto next_chain;
1896                 }
1897
1898                 /*
1899                  * Set our SGE element pointer to the beginning of the chain
1900                  * list and update our next chain list offset.
1901                  */
1902                 se = (SGE_SIMPLE32 *) &mpt_off[nxt_off];
1903                 cur_off = nxt_off;
1904                 nxt_off += MPT_RQSL(mpt);
1905
1906                 /*
1907                  * Now initialized the chain descriptor.
1908                  */
1909                 memset(ce, 0, sizeof (*ce));
1910
1911                 /*
1912                  * Get the physical address of the chain list.
1913                  */
1914                 chain_list_addr = trq->req_pbuf;
1915                 chain_list_addr += cur_off;
1916
1917
1918
1919                 ce->Address = htole32(chain_list_addr);
1920                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
1921
1922
1923                 /*
1924                  * If we have more than a frame's worth of segments left,
1925                  * set up the chain list to have the last element be another
1926                  * chain descriptor.
1927                  */
1928                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1929                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1930                         /*
1931                          * The length of the chain is the length in bytes of the
1932                          * number of segments plus the next chain element.
1933                          *
1934                          * The next chain descriptor offset is the length,
1935                          * in words, of the number of segments.
1936                          */
1937                         ce->Length = (this_seg_lim - seg) *
1938                             sizeof (SGE_SIMPLE32);
1939                         ce->NextChainOffset = ce->Length >> 2;
1940                         ce->Length += sizeof (SGE_CHAIN32);
1941                 } else {
1942                         this_seg_lim = nseg;
1943                         ce->Length = (this_seg_lim - seg) *
1944                             sizeof (SGE_SIMPLE32);
1945                 }
1946                 ce->Length = htole16(ce->Length);
1947
1948                 /*
1949                  * Fill in the chain list SGE elements with our segment data.
1950                  *
1951                  * If we're the last element in this chain list, set the last
1952                  * element flag. If we're the completely last element period,
1953                  * set the end of list and end of buffer flags.
1954                  */
1955                 while (seg < this_seg_lim) {
1956                         memset(se, 0, sizeof (*se));
1957                         se->Address = htole32(dm_segs->ds_addr);
1958
1959                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1960                         tf = flags;
1961                         if (seg ==  this_seg_lim - 1) {
1962                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1963                         }
1964                         if (seg == nseg - 1) {
1965                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1966                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1967                         }
1968                         MPI_pSGE_SET_FLAGS(se, tf);
1969                         se->FlagsLength = htole32(se->FlagsLength);
1970                         se++;
1971                         seg++;
1972                         dm_segs++;
1973                 }
1974
1975     next_chain:
1976                 /*
1977                  * If we have more segments to do and we've used up all of
1978                  * the space in a request area, go allocate another one
1979                  * and chain to that.
1980                  */
1981                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1982                         request_t *nrq;
1983
1984                         CAMLOCK_2_MPTLOCK(mpt);
1985                         nrq = mpt_get_request(mpt, FALSE);
1986                         MPTLOCK_2_CAMLOCK(mpt);
1987
1988                         if (nrq == NULL) {
1989                                 error = ENOMEM;
1990                                 goto bad;
1991                         }
1992
1993                         /*
1994                          * Append the new request area on the tail of our list.
1995                          */
1996                         if ((trq = req->chain) == NULL) {
1997                                 req->chain = nrq;
1998                         } else {
1999                                 while (trq->chain != NULL) {
2000                                         trq = trq->chain;
2001                                 }
2002                                 trq->chain = nrq;
2003                         }
2004                         trq = nrq;
2005                         mpt_off = trq->req_vbuf;
2006                         if (mpt->verbose >= MPT_PRT_DEBUG) {
2007                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
2008                         }
2009                         nxt_off = 0;
2010                 }
2011         }
2012 out:
2013
2014         /*
2015          * Last time we need to check if this CCB needs to be aborted.
2016          */
2017         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2018                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2019                         request_t *cmd_req =
2020                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2021                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
2022                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
2023                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
2024                 }
2025                 mpt_prt(mpt,
2026                     "mpt_execute_req: I/O cancelled (status 0x%x)\n",
2027                     ccb->ccb_h.status & CAM_STATUS_MASK);
2028                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
2029                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2030                 }
2031                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2032                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
2033                 xpt_done(ccb);
2034                 CAMLOCK_2_MPTLOCK(mpt);
2035                 mpt_free_request(mpt, req);
2036                 MPTLOCK_2_CAMLOCK(mpt);
2037                 return;
2038         }
2039
2040         ccb->ccb_h.status |= CAM_SIM_QUEUED;
2041         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
2042                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
2043                     mpt_timeout, ccb);
2044         }
2045         if (mpt->verbose > MPT_PRT_DEBUG) {
2046                 int nc = 0;
2047                 mpt_print_request(req->req_vbuf);
2048                 for (trq = req->chain; trq; trq = trq->chain) {
2049                         printf("  Additional Chain Area %d\n", nc++);
2050                         mpt_dump_sgl(trq->req_vbuf, 0);
2051                 }
2052         }
2053
2054         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2055                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2056                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
2057 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
2058                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2059                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
2060                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
2061                 } else {
2062                         tgt->state = TGT_STATE_MOVING_DATA;
2063                 }
2064 #else
2065                 tgt->state = TGT_STATE_MOVING_DATA;
2066 #endif
2067         }
2068         CAMLOCK_2_MPTLOCK(mpt);
2069         mpt_send_cmd(mpt, req);
2070         MPTLOCK_2_CAMLOCK(mpt);
2071 }
2072
2073 static void
2074 mpt_start(struct cam_sim *sim, union ccb *ccb)
2075 {
2076         request_t *req;
2077         struct mpt_softc *mpt;
2078         MSG_SCSI_IO_REQUEST *mpt_req;
2079         struct ccb_scsiio *csio = &ccb->csio;
2080         struct ccb_hdr *ccbh = &ccb->ccb_h;
2081         bus_dmamap_callback_t *cb;
2082         target_id_t tgt;
2083         int raid_passthru;
2084
2085         /* Get the pointer for the physical addapter */
2086         mpt = ccb->ccb_h.ccb_mpt_ptr;
2087         raid_passthru = (sim == mpt->phydisk_sim);
2088
2089         CAMLOCK_2_MPTLOCK(mpt);
2090         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
2091                 if (mpt->outofbeer == 0) {
2092                         mpt->outofbeer = 1;
2093                         xpt_freeze_simq(mpt->sim, 1);
2094                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
2095                 }
2096                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2097                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
2098                 MPTLOCK_2_CAMLOCK(mpt);
2099                 xpt_done(ccb);
2100                 return;
2101         }
2102 #ifdef  INVARIANTS
2103         mpt_req_not_spcl(mpt, req, "mpt_start", __LINE__);
2104 #endif
2105         MPTLOCK_2_CAMLOCK(mpt);
2106
2107         if (sizeof (bus_addr_t) > 4) {
2108                 cb = mpt_execute_req_a64;
2109         } else {
2110                 cb = mpt_execute_req;
2111         }
2112
2113         /*
2114          * Link the ccb and the request structure so we can find
2115          * the other knowing either the request or the ccb
2116          */
2117         req->ccb = ccb;
2118         ccb->ccb_h.ccb_req_ptr = req;
2119
2120         /* Now we build the command for the IOC */
2121         mpt_req = req->req_vbuf;
2122         memset(mpt_req, 0, sizeof (MSG_SCSI_IO_REQUEST));
2123
2124         mpt_req->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2125         if (raid_passthru) {
2126                 mpt_req->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2127                 CAMLOCK_2_MPTLOCK(mpt);
2128                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
2129                         MPTLOCK_2_CAMLOCK(mpt);
2130                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2131                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
2132                         xpt_done(ccb);
2133                         return;
2134                 }
2135                 MPTLOCK_2_CAMLOCK(mpt);
2136                 mpt_req->Bus = 0;       /* we never set bus here */
2137         } else {
2138                 tgt = ccb->ccb_h.target_id;
2139                 mpt_req->Bus = 0;       /* XXX */
2140
2141         }
2142         mpt_req->SenseBufferLength =
2143                 (csio->sense_len < MPT_SENSE_SIZE) ?
2144                  csio->sense_len : MPT_SENSE_SIZE;
2145
2146         /*
2147          * We use the message context to find the request structure when we
2148          * Get the command completion interrupt from the IOC.
2149          */
2150         mpt_req->MsgContext = htole32(req->index | scsi_io_handler_id);
2151
2152         /* Which physical device to do the I/O on */
2153         mpt_req->TargetID = tgt;
2154
2155         /* We assume a single level LUN type */
2156         if (ccb->ccb_h.target_lun >= MPT_MAX_LUNS) {
2157                 mpt_req->LUN[0] = 0x40 | ((ccb->ccb_h.target_lun >> 8) & 0x3f);
2158                 mpt_req->LUN[1] = ccb->ccb_h.target_lun & 0xff;
2159         } else {
2160                 mpt_req->LUN[1] = ccb->ccb_h.target_lun;
2161         }
2162
2163         /* Set the direction of the transfer */
2164         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2165                 mpt_req->Control = MPI_SCSIIO_CONTROL_READ;
2166         } else if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2167                 mpt_req->Control = MPI_SCSIIO_CONTROL_WRITE;
2168         } else {
2169                 mpt_req->Control = MPI_SCSIIO_CONTROL_NODATATRANSFER;
2170         }
2171
2172         if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0) {
2173                 switch(ccb->csio.tag_action) {
2174                 case MSG_HEAD_OF_Q_TAG:
2175                         mpt_req->Control |= MPI_SCSIIO_CONTROL_HEADOFQ;
2176                         break;
2177                 case MSG_ACA_TASK:
2178                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ACAQ;
2179                         break;
2180                 case MSG_ORDERED_Q_TAG:
2181                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ORDEREDQ;
2182                         break;
2183                 case MSG_SIMPLE_Q_TAG:
2184                 default:
2185                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2186                         break;
2187                 }
2188         } else {
2189                 if (mpt->is_fc || mpt->is_sas) {
2190                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2191                 } else {
2192                         /* XXX No such thing for a target doing packetized. */
2193                         mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
2194                 }
2195         }
2196
2197         if (mpt->is_spi) {
2198                 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) {
2199                         mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT;
2200                 }
2201         }
2202         mpt_req->Control = htole32(mpt_req->Control);
2203
2204         /* Copy the scsi command block into place */
2205         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
2206                 bcopy(csio->cdb_io.cdb_ptr, mpt_req->CDB, csio->cdb_len);
2207         } else {
2208                 bcopy(csio->cdb_io.cdb_bytes, mpt_req->CDB, csio->cdb_len);
2209         }
2210
2211         mpt_req->CDBLength = csio->cdb_len;
2212         mpt_req->DataLength = htole32(csio->dxfer_len);
2213         mpt_req->SenseBufferLowAddr = htole32(req->sense_pbuf);
2214
2215         /*
2216          * Do a *short* print here if we're set to MPT_PRT_DEBUG
2217          */
2218         if (mpt->verbose == MPT_PRT_DEBUG) {
2219                 U32 df;
2220                 mpt_prt(mpt, "mpt_start: %s op 0x%x ",
2221                     (mpt_req->Function == MPI_FUNCTION_SCSI_IO_REQUEST)?
2222                     "SCSI_IO_REQUEST" : "SCSI_IO_PASSTHRU", mpt_req->CDB[0]);
2223                 df = mpt_req->Control & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
2224                 if (df != MPI_SCSIIO_CONTROL_NODATATRANSFER) {
2225                         mpt_prtc(mpt, "(%s %u byte%s ",
2226                             (df == MPI_SCSIIO_CONTROL_READ)?
2227                             "read" : "write",  csio->dxfer_len,
2228                             (csio->dxfer_len == 1)? ")" : "s)");
2229                 }
2230                 mpt_prtc(mpt, "tgt %u lun %u req %p:%u\n", tgt,
2231                     ccb->ccb_h.target_lun, req, req->serno);
2232         }
2233
2234         /*
2235          * If we have any data to send with this command map it into bus space.
2236          */
2237         if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2238                 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) {
2239                         /*
2240                          * We've been given a pointer to a single buffer.
2241                          */
2242                         if ((ccbh->flags & CAM_DATA_PHYS) == 0) {
2243                                 /*
2244                                  * Virtual address that needs to translated into
2245                                  * one or more physical address ranges.
2246                                  */
2247                                 int error;
2248                                 int s = splsoftvm();
2249                                 error = bus_dmamap_load(mpt->buffer_dmat,
2250                                     req->dmap, csio->data_ptr, csio->dxfer_len,
2251                                     cb, req, 0);
2252                                 splx(s);
2253                                 if (error == EINPROGRESS) {
2254                                         /*
2255                                          * So as to maintain ordering,
2256                                          * freeze the controller queue
2257                                          * until our mapping is
2258                                          * returned.
2259                                          */
2260                                         xpt_freeze_simq(mpt->sim, 1);
2261                                         ccbh->status |= CAM_RELEASE_SIMQ;
2262                                 }
2263                         } else {
2264                                 /*
2265                                  * We have been given a pointer to single
2266                                  * physical buffer.
2267                                  */
2268                                 struct bus_dma_segment seg;
2269                                 seg.ds_addr =
2270                                     (bus_addr_t)(vm_offset_t)csio->data_ptr;
2271                                 seg.ds_len = csio->dxfer_len;
2272                                 (*cb)(req, &seg, 1, 0);
2273                         }
2274                 } else {
2275                         /*
2276                          * We have been given a list of addresses.
2277                          * This case could be easily supported but they are not
2278                          * currently generated by the CAM subsystem so there
2279                          * is no point in wasting the time right now.
2280                          */
2281                         struct bus_dma_segment *segs;
2282                         if ((ccbh->flags & CAM_SG_LIST_PHYS) == 0) {
2283                                 (*cb)(req, NULL, 0, EFAULT);
2284                         } else {
2285                                 /* Just use the segments provided */
2286                                 segs = (struct bus_dma_segment *)csio->data_ptr;
2287                                 (*cb)(req, segs, csio->sglist_cnt, 0);
2288                         }
2289                 }
2290         } else {
2291                 (*cb)(req, NULL, 0, 0);
2292         }
2293 }
2294
2295 static int
2296 mpt_bus_reset(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun,
2297     int sleep_ok)
2298 {
2299         int   error;
2300         uint16_t status;
2301         uint8_t response;
2302
2303         error = mpt_scsi_send_tmf(mpt,
2304             (tgt != CAM_TARGET_WILDCARD || lun != CAM_LUN_WILDCARD) ?
2305             MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET :
2306             MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
2307             mpt->is_fc ? MPI_SCSITASKMGMT_MSGFLAGS_LIP_RESET_OPTION : 0,
2308             0,  /* XXX How do I get the channel ID? */
2309             tgt != CAM_TARGET_WILDCARD ? tgt : 0,
2310             lun != CAM_LUN_WILDCARD ? lun : 0,
2311             0, sleep_ok);
2312
2313         if (error != 0) {
2314                 /*
2315                  * mpt_scsi_send_tmf hard resets on failure, so no
2316                  * need to do so here.
2317                  */
2318                 mpt_prt(mpt,
2319                     "mpt_bus_reset: mpt_scsi_send_tmf returned %d\n", error);
2320                 return (EIO);
2321         }
2322
2323         /* Wait for bus reset to be processed by the IOC. */
2324         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
2325             REQ_STATE_DONE, sleep_ok, 5000);
2326
2327         status = le16toh(mpt->tmf_req->IOCStatus);
2328         response = mpt->tmf_req->ResponseCode;
2329         mpt->tmf_req->state = REQ_STATE_FREE;
2330
2331         if (error) {
2332                 mpt_prt(mpt, "mpt_bus_reset: Reset timed-out. "
2333                     "Resetting controller.\n");
2334                 mpt_reset(mpt, TRUE);
2335                 return (ETIMEDOUT);
2336         }
2337
2338         if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
2339                 mpt_prt(mpt, "mpt_bus_reset: TMF IOC Status 0x%x. "
2340                     "Resetting controller.\n", status);
2341                 mpt_reset(mpt, TRUE);
2342                 return (EIO);
2343         }
2344
2345         if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
2346             response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
2347                 mpt_prt(mpt, "mpt_bus_reset: TMF Response 0x%x. "
2348                     "Resetting controller.\n", response);
2349                 mpt_reset(mpt, TRUE);
2350                 return (EIO);
2351         }
2352         return (0);
2353 }
2354
2355 static int
2356 mpt_fc_reset_link(struct mpt_softc *mpt, int dowait)
2357 {
2358         int r = 0;
2359         request_t *req;
2360         PTR_MSG_FC_PRIMITIVE_SEND_REQUEST fc;
2361
2362         req = mpt_get_request(mpt, FALSE);
2363         if (req == NULL) {
2364                 return (ENOMEM);
2365         }
2366         fc = req->req_vbuf;
2367         memset(fc, 0, sizeof(*fc));
2368         fc->SendFlags = MPI_FC_PRIM_SEND_FLAGS_RESET_LINK;
2369         fc->Function = MPI_FUNCTION_FC_PRIMITIVE_SEND;
2370         fc->MsgContext = htole32(req->index | fc_els_handler_id);
2371         mpt_send_cmd(mpt, req);
2372         if (dowait) {
2373                 r = mpt_wait_req(mpt, req, REQ_STATE_DONE,
2374                     REQ_STATE_DONE, FALSE, 60 * 1000);
2375                 if (r == 0) {
2376                         mpt_free_request(mpt, req);
2377                 }
2378         }
2379         return (r);
2380 }
2381
2382 static int
2383 mpt_cam_event(struct mpt_softc *mpt, request_t *req,
2384               MSG_EVENT_NOTIFY_REPLY *msg)
2385 {
2386         uint32_t data0, data1;
2387
2388         data0 = le32toh(msg->Data[0]);
2389         data1 = le32toh(msg->Data[1]);
2390         switch(msg->Event & 0xFF) {
2391         case MPI_EVENT_UNIT_ATTENTION:
2392                 mpt_prt(mpt, "UNIT ATTENTION: Bus: 0x%02x TargetID: 0x%02x\n",
2393                     (data0 >> 8) & 0xff, data0 & 0xff);
2394                 break;
2395
2396         case MPI_EVENT_IOC_BUS_RESET:
2397                 /* We generated a bus reset */
2398                 mpt_prt(mpt, "IOC Generated Bus Reset Port: %d\n",
2399                     (data0 >> 8) & 0xff);
2400                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2401                 break;
2402
2403         case MPI_EVENT_EXT_BUS_RESET:
2404                 /* Someone else generated a bus reset */
2405                 mpt_prt(mpt, "External Bus Reset Detected\n");
2406                 /*
2407                  * These replies don't return EventData like the MPI
2408                  * spec says they do
2409                  */
2410                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2411                 break;
2412
2413         case MPI_EVENT_RESCAN:
2414 #if __FreeBSD_version >= 600000
2415         {
2416                 union ccb *ccb;
2417                 uint32_t pathid;
2418                 /*
2419                  * In general this means a device has been added to the loop.
2420                  */
2421                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2422                 if (mpt->ready == 0) {
2423                         break;
2424                 }
2425                 if (mpt->phydisk_sim) {
2426                         pathid = cam_sim_path(mpt->phydisk_sim);
2427                 } else {
2428                         pathid = cam_sim_path(mpt->sim);
2429                 }
2430                 MPTLOCK_2_CAMLOCK(mpt);
2431                 /*
2432                  * Allocate a CCB, create a wildcard path for this bus,
2433                  * and schedule a rescan.
2434                  */
2435                 ccb = xpt_alloc_ccb_nowait();
2436                 if (ccb == NULL) {
2437                         mpt_prt(mpt, "unable to alloc CCB for rescan\n");
2438                         CAMLOCK_2_MPTLOCK(mpt);
2439                         break;
2440                 }
2441
2442                 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, pathid,
2443                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2444                         CAMLOCK_2_MPTLOCK(mpt);
2445                         mpt_prt(mpt, "unable to create path for rescan\n");
2446                         xpt_free_ccb(ccb);
2447                         break;
2448                 }
2449                 xpt_rescan(ccb);
2450                 CAMLOCK_2_MPTLOCK(mpt);
2451                 break;
2452         }
2453 #else
2454                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2455                 break;
2456 #endif
2457         case MPI_EVENT_LINK_STATUS_CHANGE:
2458                 mpt_prt(mpt, "Port %d: LinkState: %s\n",
2459                     (data1 >> 8) & 0xff,
2460                     ((data0 & 0xff) == 0)?  "Failed" : "Active");
2461                 break;
2462
2463         case MPI_EVENT_LOOP_STATE_CHANGE:
2464                 switch ((data0 >> 16) & 0xff) {
2465                 case 0x01:
2466                         mpt_prt(mpt,
2467                             "Port 0x%x: FC LinkEvent: LIP(%02x,%02x) "
2468                             "(Loop Initialization)\n",
2469                             (data1 >> 8) & 0xff,
2470                             (data0 >> 8) & 0xff,
2471                             (data0     ) & 0xff);
2472                         switch ((data0 >> 8) & 0xff) {
2473                         case 0xF7:
2474                                 if ((data0 & 0xff) == 0xF7) {
2475                                         mpt_prt(mpt, "Device needs AL_PA\n");
2476                                 } else {
2477                                         mpt_prt(mpt, "Device %02x doesn't like "
2478                                             "FC performance\n",
2479                                             data0 & 0xFF);
2480                                 }
2481                                 break;
2482                         case 0xF8:
2483                                 if ((data0 & 0xff) == 0xF7) {
2484                                         mpt_prt(mpt, "Device had loop failure "
2485                                             "at its receiver prior to acquiring"
2486                                             " AL_PA\n");
2487                                 } else {
2488                                         mpt_prt(mpt, "Device %02x detected loop"
2489                                             " failure at its receiver\n",
2490                                             data0 & 0xFF);
2491                                 }
2492                                 break;
2493                         default:
2494                                 mpt_prt(mpt, "Device %02x requests that device "
2495                                     "%02x reset itself\n",
2496                                     data0 & 0xFF,
2497                                     (data0 >> 8) & 0xFF);
2498                                 break;
2499                         }
2500                         break;
2501                 case 0x02:
2502                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2503                             "LPE(%02x,%02x) (Loop Port Enable)\n",
2504                             (data1 >> 8) & 0xff, /* Port */
2505                             (data0 >>  8) & 0xff, /* Character 3 */
2506                             (data0      ) & 0xff  /* Character 4 */);
2507                         break;
2508                 case 0x03:
2509                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2510                             "LPB(%02x,%02x) (Loop Port Bypass)\n",
2511                             (data1 >> 8) & 0xff, /* Port */
2512                             (data0 >> 8) & 0xff, /* Character 3 */
2513                             (data0     ) & 0xff  /* Character 4 */);
2514                         break;
2515                 default:
2516                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: Unknown "
2517                             "FC event (%02x %02x %02x)\n",
2518                             (data1 >> 8) & 0xff, /* Port */
2519                             (data0 >> 16) & 0xff, /* Event */
2520                             (data0 >>  8) & 0xff, /* Character 3 */
2521                             (data0      ) & 0xff  /* Character 4 */);
2522                 }
2523                 break;
2524
2525         case MPI_EVENT_LOGOUT:
2526                 mpt_prt(mpt, "FC Logout Port: %d N_PortID: %02x\n",
2527                     (data1 >> 8) & 0xff, data0);
2528                 break;
2529         case MPI_EVENT_QUEUE_FULL:
2530         {
2531                 struct cam_sim *sim;
2532                 struct cam_path *tmppath;
2533                 struct ccb_relsim crs;
2534                 PTR_EVENT_DATA_QUEUE_FULL pqf;
2535                 lun_id_t lun_id;
2536
2537                 pqf = (PTR_EVENT_DATA_QUEUE_FULL)msg->Data;
2538                 pqf->CurrentDepth = le16toh(pqf->CurrentDepth);
2539                 mpt_prt(mpt, "QUEUE FULL EVENT: Bus 0x%02x Target 0x%02x Depth "
2540                     "%d\n", pqf->Bus, pqf->TargetID, pqf->CurrentDepth);
2541                 if (mpt->phydisk_sim && mpt_is_raid_member(mpt,
2542                     pqf->TargetID) != 0) {
2543                         sim = mpt->phydisk_sim;
2544                 } else {
2545                         sim = mpt->sim;
2546                 }
2547                 MPTLOCK_2_CAMLOCK(mpt);
2548                 for (lun_id = 0; lun_id < MPT_MAX_LUNS; lun_id++) {
2549                         if (xpt_create_path(&tmppath, NULL, cam_sim_path(sim),
2550                             pqf->TargetID, lun_id) != CAM_REQ_CMP) {
2551                                 mpt_prt(mpt, "unable to create a path to send "
2552                                     "XPT_REL_SIMQ");
2553                                 CAMLOCK_2_MPTLOCK(mpt);
2554                                 break;
2555                         }
2556                         xpt_setup_ccb(&crs.ccb_h, tmppath, 5);
2557                         crs.ccb_h.func_code = XPT_REL_SIMQ;
2558                         crs.ccb_h.flags = CAM_DEV_QFREEZE;
2559                         crs.release_flags = RELSIM_ADJUST_OPENINGS;
2560                         crs.openings = pqf->CurrentDepth - 1;
2561                         xpt_action((union ccb *)&crs);
2562                         if (crs.ccb_h.status != CAM_REQ_CMP) {
2563                                 mpt_prt(mpt, "XPT_REL_SIMQ failed\n");
2564                         }
2565                         xpt_free_path(tmppath);
2566                 }
2567                 CAMLOCK_2_MPTLOCK(mpt);
2568                 break;
2569         }
2570         case MPI_EVENT_IR_RESYNC_UPDATE:
2571                 mpt_prt(mpt, "IR resync update %d completed\n",
2572                     (data0 >> 16) & 0xff);
2573                 break;
2574         case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
2575         {
2576                 union ccb *ccb;
2577                 struct cam_sim *sim;
2578                 struct cam_path *tmppath;
2579                 PTR_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE psdsc;
2580
2581                 psdsc = (PTR_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE)msg->Data;
2582                 if (mpt->phydisk_sim && mpt_is_raid_member(mpt,
2583                     psdsc->TargetID) != 0)
2584                         sim = mpt->phydisk_sim;
2585                 else
2586                         sim = mpt->sim;
2587                 switch(psdsc->ReasonCode) {
2588                 case MPI_EVENT_SAS_DEV_STAT_RC_ADDED:
2589                         MPTLOCK_2_CAMLOCK(mpt);
2590                         ccb = xpt_alloc_ccb_nowait();
2591                         if (ccb == NULL) {
2592                                 mpt_prt(mpt,
2593                                     "unable to alloc CCB for rescan\n");
2594                                 CAMLOCK_2_MPTLOCK(mpt);
2595                                 break;
2596                         }
2597                         if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
2598                             cam_sim_path(sim), psdsc->TargetID,
2599                             CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2600                                 CAMLOCK_2_MPTLOCK(mpt);
2601                                 mpt_prt(mpt,
2602                                     "unable to create path for rescan\n");
2603                                 xpt_free_ccb(ccb);
2604                                 break;
2605                         }
2606                         xpt_rescan(ccb);
2607                         CAMLOCK_2_MPTLOCK(mpt);
2608                         break;
2609                 case MPI_EVENT_SAS_DEV_STAT_RC_NOT_RESPONDING:
2610                         MPTLOCK_2_CAMLOCK(mpt);
2611                         if (xpt_create_path(&tmppath, NULL, cam_sim_path(sim),
2612                             psdsc->TargetID, CAM_LUN_WILDCARD) !=
2613                             CAM_REQ_CMP) {
2614                                 mpt_prt(mpt,
2615                                     "unable to create path for async event");
2616                                 CAMLOCK_2_MPTLOCK(mpt);
2617                                 break;
2618                         }
2619                         xpt_async(AC_LOST_DEVICE, tmppath, NULL);
2620                         xpt_free_path(tmppath);
2621                         CAMLOCK_2_MPTLOCK(mpt);
2622                         break;
2623                 case MPI_EVENT_SAS_DEV_STAT_RC_CMPL_INTERNAL_DEV_RESET:
2624                 case MPI_EVENT_SAS_DEV_STAT_RC_CMPL_TASK_ABORT_INTERNAL:
2625                 case MPI_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
2626                         break;
2627                 default:
2628                         mpt_lprt(mpt, MPT_PRT_WARN,
2629                             "SAS device status change: Bus: 0x%02x TargetID: "
2630                             "0x%02x ReasonCode: 0x%02x\n", psdsc->Bus,
2631                             psdsc->TargetID, psdsc->ReasonCode);
2632                         break;
2633                 }
2634                 break;
2635         }
2636         case MPI_EVENT_SAS_DISCOVERY_ERROR:
2637         {
2638                 PTR_EVENT_DATA_DISCOVERY_ERROR pde;
2639
2640                 pde = (PTR_EVENT_DATA_DISCOVERY_ERROR)msg->Data;
2641                 pde->DiscoveryStatus = le32toh(pde->DiscoveryStatus);
2642                 mpt_lprt(mpt, MPT_PRT_WARN,
2643                     "SAS discovery error: Port: 0x%02x Status: 0x%08x\n",
2644                     pde->Port, pde->DiscoveryStatus);
2645                 break;
2646         }
2647         case MPI_EVENT_EVENT_CHANGE:
2648         case MPI_EVENT_INTEGRATED_RAID:
2649         case MPI_EVENT_IR2:
2650         case MPI_EVENT_LOG_ENTRY_ADDED:
2651         case MPI_EVENT_SAS_DISCOVERY:
2652         case MPI_EVENT_SAS_PHY_LINK_STATUS:
2653         case MPI_EVENT_SAS_SES:
2654                 break;
2655         default:
2656                 mpt_lprt(mpt, MPT_PRT_WARN, "mpt_cam_event: 0x%x\n",
2657                     msg->Event & 0xFF);
2658                 return (0);
2659         }
2660         return (1);
2661 }
2662
2663 /*
2664  * Reply path for all SCSI I/O requests, called from our
2665  * interrupt handler by extracting our handler index from
2666  * the MsgContext field of the reply from the IOC.
2667  *
2668  * This routine is optimized for the common case of a
2669  * completion without error.  All exception handling is
2670  * offloaded to non-inlined helper routines to minimize
2671  * cache footprint.
2672  */
2673 static int
2674 mpt_scsi_reply_handler(struct mpt_softc *mpt, request_t *req,
2675     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2676 {
2677         MSG_SCSI_IO_REQUEST *scsi_req;
2678         union ccb *ccb;
2679
2680         if (req->state == REQ_STATE_FREE) {
2681                 mpt_prt(mpt, "mpt_scsi_reply_handler: req already free\n");
2682                 return (TRUE);
2683         }
2684
2685         scsi_req = (MSG_SCSI_IO_REQUEST *)req->req_vbuf;
2686         ccb = req->ccb;
2687         if (ccb == NULL) {
2688                 mpt_prt(mpt, "mpt_scsi_reply_handler: req %p:%u with no ccb\n",
2689                     req, req->serno);
2690                 return (TRUE);
2691         }
2692
2693         mpt_req_untimeout(req, mpt_timeout, ccb);
2694         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2695
2696         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2697                 bus_dmasync_op_t op;
2698
2699                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
2700                         op = BUS_DMASYNC_POSTREAD;
2701                 else
2702                         op = BUS_DMASYNC_POSTWRITE;
2703                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
2704                 bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2705         }
2706
2707         if (reply_frame == NULL) {
2708                 /*
2709                  * Context only reply, completion without error status.
2710                  */
2711                 ccb->csio.resid = 0;
2712                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
2713                 ccb->csio.scsi_status = SCSI_STATUS_OK;
2714         } else {
2715                 mpt_scsi_reply_frame_handler(mpt, req, reply_frame);
2716         }
2717
2718         if (mpt->outofbeer) {
2719                 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2720                 mpt->outofbeer = 0;
2721                 mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
2722         }
2723         if (scsi_req->CDB[0] == INQUIRY && (scsi_req->CDB[1] & SI_EVPD) == 0) {
2724                 struct scsi_inquiry_data *iq =
2725                     (struct scsi_inquiry_data *)ccb->csio.data_ptr;
2726                 if (scsi_req->Function ==
2727                     MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
2728                         /*
2729                          * Fake out the device type so that only the
2730                          * pass-thru device will attach.
2731                          */
2732                         iq->device &= ~0x1F;
2733                         iq->device |= T_NODEVICE;
2734                 }
2735         }
2736         if (mpt->verbose == MPT_PRT_DEBUG) {
2737                 mpt_prt(mpt, "mpt_scsi_reply_handler: %p:%u complete\n",
2738                     req, req->serno);
2739         }
2740         KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
2741         MPTLOCK_2_CAMLOCK(mpt);
2742         xpt_done(ccb);
2743         CAMLOCK_2_MPTLOCK(mpt);
2744         if ((req->state & REQ_STATE_TIMEDOUT) == 0) {
2745                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2746         } else {
2747                 mpt_prt(mpt, "completing timedout/aborted req %p:%u\n",
2748                     req, req->serno);
2749                 TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
2750         }
2751         KASSERT((req->state & REQ_STATE_NEED_WAKEUP) == 0,
2752             ("CCB req needed wakeup"));
2753 #ifdef  INVARIANTS
2754         mpt_req_not_spcl(mpt, req, "mpt_scsi_reply_handler", __LINE__);
2755 #endif
2756         mpt_free_request(mpt, req);
2757         return (TRUE);
2758 }
2759
2760 static int
2761 mpt_scsi_tmf_reply_handler(struct mpt_softc *mpt, request_t *req,
2762     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2763 {
2764         MSG_SCSI_TASK_MGMT_REPLY *tmf_reply;
2765
2766         KASSERT(req == mpt->tmf_req, ("TMF Reply not using mpt->tmf_req"));
2767 #ifdef  INVARIANTS
2768         mpt_req_not_spcl(mpt, req, "mpt_scsi_tmf_reply_handler", __LINE__);
2769 #endif
2770         tmf_reply = (MSG_SCSI_TASK_MGMT_REPLY *)reply_frame;
2771         /* Record IOC Status and Response Code of TMF for any waiters. */
2772         req->IOCStatus = le16toh(tmf_reply->IOCStatus);
2773         req->ResponseCode = tmf_reply->ResponseCode;
2774
2775         mpt_lprt(mpt, MPT_PRT_DEBUG, "TMF complete: req %p:%u status 0x%x\n",
2776             req, req->serno, le16toh(tmf_reply->IOCStatus));
2777         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2778         if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
2779                 req->state |= REQ_STATE_DONE;
2780                 wakeup(req);
2781         } else {
2782                 mpt->tmf_req->state = REQ_STATE_FREE;
2783         }
2784         return (TRUE);
2785 }
2786
2787 /*
2788  * XXX: Move to definitions file
2789  */
2790 #define ELS     0x22
2791 #define FC4LS   0x32
2792 #define ABTS    0x81
2793 #define BA_ACC  0x84
2794
2795 #define LS_RJT  0x01
2796 #define LS_ACC  0x02
2797 #define PLOGI   0x03
2798 #define LOGO    0x05
2799 #define SRR     0x14
2800 #define PRLI    0x20
2801 #define PRLO    0x21
2802 #define ADISC   0x52
2803 #define RSCN    0x61
2804
2805 static void
2806 mpt_fc_els_send_response(struct mpt_softc *mpt, request_t *req,
2807     PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp, U8 length)
2808 {
2809         uint32_t fl;
2810         MSG_LINK_SERVICE_RSP_REQUEST tmp;
2811         PTR_MSG_LINK_SERVICE_RSP_REQUEST rsp;
2812
2813         /*
2814          * We are going to reuse the ELS request to send this response back.
2815          */
2816         rsp = &tmp;
2817         memset(rsp, 0, sizeof(*rsp));
2818
2819 #ifdef  USE_IMMEDIATE_LINK_DATA
2820         /*
2821          * Apparently the IMMEDIATE stuff doesn't seem to work.
2822          */
2823         rsp->RspFlags = LINK_SERVICE_RSP_FLAGS_IMMEDIATE;
2824 #endif
2825         rsp->RspLength = length;
2826         rsp->Function = MPI_FUNCTION_FC_LINK_SRVC_RSP;
2827         rsp->MsgContext = htole32(req->index | fc_els_handler_id);
2828
2829         /*
2830          * Copy over information from the original reply frame to
2831          * it's correct place in the response.
2832          */
2833         memcpy((U8 *)rsp + 0x0c, (U8 *)rp + 0x1c, 24);
2834
2835         /*
2836          * And now copy back the temporary area to the original frame.
2837          */
2838         memcpy(req->req_vbuf, rsp, sizeof (MSG_LINK_SERVICE_RSP_REQUEST));
2839         rsp = req->req_vbuf;
2840
2841 #ifdef  USE_IMMEDIATE_LINK_DATA
2842         memcpy((U8 *)&rsp->SGL, &((U8 *)req->req_vbuf)[MPT_RQSL(mpt)], length);
2843 #else
2844 {
2845         PTR_SGE_SIMPLE32 se = (PTR_SGE_SIMPLE32) &rsp->SGL;
2846         bus_addr_t paddr = req->req_pbuf;
2847         paddr += MPT_RQSL(mpt);
2848
2849         fl =
2850                 MPI_SGE_FLAGS_HOST_TO_IOC       |
2851                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
2852                 MPI_SGE_FLAGS_LAST_ELEMENT      |
2853                 MPI_SGE_FLAGS_END_OF_LIST       |
2854                 MPI_SGE_FLAGS_END_OF_BUFFER;
2855         fl <<= MPI_SGE_FLAGS_SHIFT;
2856         fl |= (length);
2857         se->FlagsLength = htole32(fl);
2858         se->Address = htole32((uint32_t) paddr);
2859 }
2860 #endif
2861
2862         /*
2863          * Send it on...
2864          */
2865         mpt_send_cmd(mpt, req);
2866 }
2867
2868 static int
2869 mpt_fc_els_reply_handler(struct mpt_softc *mpt, request_t *req,
2870     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2871 {
2872         PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp =
2873             (PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY) reply_frame;
2874         U8 rctl;
2875         U8 type;
2876         U8 cmd;
2877         U16 status = le16toh(reply_frame->IOCStatus);
2878         U32 *elsbuf;
2879         int ioindex;
2880         int do_refresh = TRUE;
2881
2882 #ifdef  INVARIANTS
2883         KASSERT(mpt_req_on_free_list(mpt, req) == 0,
2884             ("fc_els_reply_handler: req %p:%u for function %x on freelist!",
2885             req, req->serno, rp->Function));
2886         if (rp->Function != MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2887                 mpt_req_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2888         } else {
2889                 mpt_req_not_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2890         }
2891 #endif
2892         mpt_lprt(mpt, MPT_PRT_DEBUG,
2893             "FC_ELS Complete: req %p:%u, reply %p function %x\n",
2894             req, req->serno, reply_frame, reply_frame->Function);
2895
2896         if  (status != MPI_IOCSTATUS_SUCCESS) {
2897                 mpt_prt(mpt, "ELS REPLY STATUS 0x%x for Function %x\n",
2898                     status, reply_frame->Function);
2899                 if (status == MPI_IOCSTATUS_INVALID_STATE) {
2900                         /*
2901                          * XXX: to get around shutdown issue
2902                          */
2903                         mpt->disabled = 1;
2904                         return (TRUE);
2905                 }
2906                 return (TRUE);
2907         }
2908
2909         /*
2910          * If the function of a link service response, we recycle the
2911          * response to be a refresh for a new link service request.
2912          *
2913          * The request pointer is bogus in this case and we have to fetch
2914          * it based upon the TransactionContext.
2915          */
2916         if (rp->Function == MPI_FUNCTION_FC_LINK_SRVC_RSP) {
2917                 /* Freddie Uncle Charlie Katie */
2918                 /* We don't get the IOINDEX as part of the Link Svc Rsp */
2919                 for (ioindex = 0; ioindex < mpt->els_cmds_allocated; ioindex++)
2920                         if (mpt->els_cmd_ptrs[ioindex] == req) {
2921                                 break;
2922                         }
2923
2924                 KASSERT(ioindex < mpt->els_cmds_allocated,
2925                     ("can't find my mommie!"));
2926
2927                 /* remove from active list as we're going to re-post it */
2928                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2929                 req->state &= ~REQ_STATE_QUEUED;
2930                 req->state |= REQ_STATE_DONE;
2931                 mpt_fc_post_els(mpt, req, ioindex);
2932                 return (TRUE);
2933         }
2934
2935         if (rp->Function == MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2936                 /* remove from active list as we're done */
2937                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2938                 req->state &= ~REQ_STATE_QUEUED;
2939                 req->state |= REQ_STATE_DONE;
2940                 if (req->state & REQ_STATE_TIMEDOUT) {
2941                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2942                             "Sync Primitive Send Completed After Timeout\n");
2943                         mpt_free_request(mpt, req);
2944                 } else if ((req->state & REQ_STATE_NEED_WAKEUP) == 0) {
2945                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2946                             "Async Primitive Send Complete\n");
2947                         mpt_free_request(mpt, req);
2948                 } else {
2949                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2950                             "Sync Primitive Send Complete- Waking Waiter\n");
2951                         wakeup(req);
2952                 }
2953                 return (TRUE);
2954         }
2955
2956         if (rp->Function != MPI_FUNCTION_FC_LINK_SRVC_BUF_POST) {
2957                 mpt_prt(mpt, "unexpected ELS_REPLY: Function 0x%x Flags %x "
2958                     "Length %d Message Flags %x\n", rp->Function, rp->Flags,
2959                     rp->MsgLength, rp->MsgFlags);
2960                 return (TRUE);
2961         }
2962
2963         if (rp->MsgLength <= 5) {
2964                 /*
2965                  * This is just a ack of an original ELS buffer post
2966                  */
2967                 mpt_lprt(mpt, MPT_PRT_DEBUG,
2968                     "RECV'd ACK of FC_ELS buf post %p:%u\n", req, req->serno);
2969                 return (TRUE);
2970         }
2971
2972
2973         rctl = (le32toh(rp->Rctl_Did) & MPI_FC_RCTL_MASK) >> MPI_FC_RCTL_SHIFT;
2974         type = (le32toh(rp->Type_Fctl) & MPI_FC_TYPE_MASK) >> MPI_FC_TYPE_SHIFT;
2975
2976         elsbuf = &((U32 *)req->req_vbuf)[MPT_RQSL(mpt)/sizeof (U32)];
2977         cmd = be32toh(elsbuf[0]) >> 24;
2978
2979         if (rp->Flags & MPI_LS_BUF_POST_REPLY_FLAG_NO_RSP_NEEDED) {
2980                 mpt_lprt(mpt, MPT_PRT_ALWAYS, "ELS_REPLY: response unneeded\n");
2981                 return (TRUE);
2982         }
2983
2984         ioindex = le32toh(rp->TransactionContext);
2985         req = mpt->els_cmd_ptrs[ioindex];
2986
2987         if (rctl == ELS && type == 1) {
2988                 switch (cmd) {
2989                 case PRLI:
2990                         /*
2991                          * Send back a PRLI ACC
2992                          */
2993                         mpt_prt(mpt, "PRLI from 0x%08x%08x\n",
2994                             le32toh(rp->Wwn.PortNameHigh),
2995                             le32toh(rp->Wwn.PortNameLow));
2996                         elsbuf[0] = htobe32(0x02100014);
2997                         elsbuf[1] |= htobe32(0x00000100);
2998                         elsbuf[4] = htobe32(0x00000002);
2999                         if (mpt->role & MPT_ROLE_TARGET)
3000                                 elsbuf[4] |= htobe32(0x00000010);
3001                         if (mpt->role & MPT_ROLE_INITIATOR)
3002                                 elsbuf[4] |= htobe32(0x00000020);
3003                         /* remove from active list as we're done */
3004                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3005                         req->state &= ~REQ_STATE_QUEUED;
3006                         req->state |= REQ_STATE_DONE;
3007                         mpt_fc_els_send_response(mpt, req, rp, 20);
3008                         do_refresh = FALSE;
3009                         break;
3010                 case PRLO:
3011                         memset(elsbuf, 0, 5 * (sizeof (U32)));
3012                         elsbuf[0] = htobe32(0x02100014);
3013                         elsbuf[1] = htobe32(0x08000100);
3014                         mpt_prt(mpt, "PRLO from 0x%08x%08x\n",
3015                             le32toh(rp->Wwn.PortNameHigh),
3016                             le32toh(rp->Wwn.PortNameLow));
3017                         /* remove from active list as we're done */
3018                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3019                         req->state &= ~REQ_STATE_QUEUED;
3020                         req->state |= REQ_STATE_DONE;
3021                         mpt_fc_els_send_response(mpt, req, rp, 20);
3022                         do_refresh = FALSE;
3023                         break;
3024                 default:
3025                         mpt_prt(mpt, "ELS TYPE 1 COMMAND: %x\n", cmd);
3026                         break;
3027                 }
3028         } else if (rctl == ABTS && type == 0) {
3029                 uint16_t rx_id = le16toh(rp->Rxid);
3030                 uint16_t ox_id = le16toh(rp->Oxid);
3031                 request_t *tgt_req = NULL;
3032
3033                 mpt_prt(mpt,
3034                     "ELS: ABTS OX_ID 0x%x RX_ID 0x%x from 0x%08x%08x\n",
3035                     ox_id, rx_id, le32toh(rp->Wwn.PortNameHigh),
3036                     le32toh(rp->Wwn.PortNameLow));
3037                 if (rx_id >= mpt->mpt_max_tgtcmds) {
3038                         mpt_prt(mpt, "Bad RX_ID 0x%x\n", rx_id);
3039                 } else if (mpt->tgt_cmd_ptrs == NULL) {
3040                         mpt_prt(mpt, "No TGT CMD PTRS\n");
3041                 } else {
3042                         tgt_req = mpt->tgt_cmd_ptrs[rx_id];
3043                 }
3044                 if (tgt_req) {
3045                         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, tgt_req);
3046                         union ccb *ccb;
3047                         uint32_t ct_id;
3048
3049                         /*
3050                          * Check to make sure we have the correct command
3051                          * The reply descriptor in the target state should
3052                          * should contain an IoIndex that should match the
3053                          * RX_ID.
3054                          *
3055                          * It'd be nice to have OX_ID to crosscheck with
3056                          * as well.
3057                          */
3058                         ct_id = GET_IO_INDEX(tgt->reply_desc);
3059
3060                         if (ct_id != rx_id) {
3061                                 mpt_lprt(mpt, MPT_PRT_ERROR, "ABORT Mismatch: "
3062                                     "RX_ID received=0x%x; RX_ID in cmd=0x%x\n",
3063                                     rx_id, ct_id);
3064                                 goto skip;
3065                         }
3066
3067                         ccb = tgt->ccb;
3068                         if (ccb) {
3069                                 mpt_prt(mpt,
3070                                     "CCB (%p): lun %u flags %x status %x\n",
3071                                     ccb, ccb->ccb_h.target_lun,
3072                                     ccb->ccb_h.flags, ccb->ccb_h.status);
3073                         }
3074                         mpt_prt(mpt, "target state 0x%x resid %u xfrd %u rpwrd "
3075                             "%x nxfers %x\n", tgt->state,
3076                             tgt->resid, tgt->bytes_xfered, tgt->reply_desc,
3077                             tgt->nxfers);
3078   skip:
3079                         if (mpt_abort_target_cmd(mpt, tgt_req)) {
3080                                 mpt_prt(mpt, "unable to start TargetAbort\n");
3081                         }
3082                 } else {
3083                         mpt_prt(mpt, "no back pointer for RX_ID 0x%x\n", rx_id);
3084                 }
3085                 memset(elsbuf, 0, 5 * (sizeof (U32)));
3086                 elsbuf[0] = htobe32(0);
3087                 elsbuf[1] = htobe32((ox_id << 16) | rx_id);
3088                 elsbuf[2] = htobe32(0x000ffff);
3089                 /*
3090                  * Dork with the reply frame so that the response to it
3091                  * will be correct.
3092                  */
3093                 rp->Rctl_Did += ((BA_ACC - ABTS) << MPI_FC_RCTL_SHIFT);
3094                 /* remove from active list as we're done */
3095                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3096                 req->state &= ~REQ_STATE_QUEUED;
3097                 req->state |= REQ_STATE_DONE;
3098                 mpt_fc_els_send_response(mpt, req, rp, 12);
3099                 do_refresh = FALSE;
3100         } else {
3101                 mpt_prt(mpt, "ELS: RCTL %x TYPE %x CMD %x\n", rctl, type, cmd);
3102         }
3103         if (do_refresh == TRUE) {
3104                 /* remove from active list as we're done */
3105                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3106                 req->state &= ~REQ_STATE_QUEUED;
3107                 req->state |= REQ_STATE_DONE;
3108                 mpt_fc_post_els(mpt, req, ioindex);
3109         }
3110         return (TRUE);
3111 }
3112
3113 /*
3114  * Clean up all SCSI Initiator personality state in response
3115  * to a controller reset.
3116  */
3117 static void
3118 mpt_cam_ioc_reset(struct mpt_softc *mpt, int type)
3119 {
3120
3121         /*
3122          * The pending list is already run down by
3123          * the generic handler.  Perform the same
3124          * operation on the timed out request list.
3125          */
3126         mpt_complete_request_chain(mpt, &mpt->request_timeout_list,
3127                                    MPI_IOCSTATUS_INVALID_STATE);
3128
3129         /*
3130          * XXX: We need to repost ELS and Target Command Buffers?
3131          */
3132
3133         /*
3134          * Inform the XPT that a bus reset has occurred.
3135          */
3136         xpt_async(AC_BUS_RESET, mpt->path, NULL);
3137 }
3138
3139 /*
3140  * Parse additional completion information in the reply
3141  * frame for SCSI I/O requests.
3142  */
3143 static int
3144 mpt_scsi_reply_frame_handler(struct mpt_softc *mpt, request_t *req,
3145                              MSG_DEFAULT_REPLY *reply_frame)
3146 {
3147         union ccb *ccb;
3148         MSG_SCSI_IO_REPLY *scsi_io_reply;
3149         u_int ioc_status;
3150         u_int sstate;
3151
3152         MPT_DUMP_REPLY_FRAME(mpt, reply_frame);
3153         KASSERT(reply_frame->Function == MPI_FUNCTION_SCSI_IO_REQUEST
3154              || reply_frame->Function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH,
3155                 ("MPT SCSI I/O Handler called with incorrect reply type"));
3156         KASSERT((reply_frame->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY) == 0,
3157                 ("MPT SCSI I/O Handler called with continuation reply"));
3158
3159         scsi_io_reply = (MSG_SCSI_IO_REPLY *)reply_frame;
3160         ioc_status = le16toh(scsi_io_reply->IOCStatus);
3161         ioc_status &= MPI_IOCSTATUS_MASK;
3162         sstate = scsi_io_reply->SCSIState;
3163
3164         ccb = req->ccb;
3165         ccb->csio.resid =
3166             ccb->csio.dxfer_len - le32toh(scsi_io_reply->TransferCount);
3167
3168         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_VALID) != 0
3169          && (ccb->ccb_h.flags & (CAM_SENSE_PHYS | CAM_SENSE_PTR)) == 0) {
3170                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
3171                 ccb->csio.sense_resid =
3172                     ccb->csio.sense_len - le32toh(scsi_io_reply->SenseCount);
3173                 bcopy(req->sense_vbuf, &ccb->csio.sense_data,
3174                     min(ccb->csio.sense_len,
3175                     le32toh(scsi_io_reply->SenseCount)));
3176         }
3177
3178         if ((sstate & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) != 0) {
3179                 /*
3180                  * Tag messages rejected, but non-tagged retry
3181                  * was successful.
3182 XXXX
3183                 mpt_set_tags(mpt, devinfo, MPT_QUEUE_NONE);
3184                  */
3185         }
3186
3187         switch(ioc_status) {
3188         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3189                 /*
3190                  * XXX
3191                  * Linux driver indicates that a zero
3192                  * transfer length with this error code
3193                  * indicates a CRC error.
3194                  *
3195                  * No need to swap the bytes for checking
3196                  * against zero.
3197                  */
3198                 if (scsi_io_reply->TransferCount == 0) {
3199                         mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3200                         break;
3201                 }
3202                 /* FALLTHROUGH */
3203         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
3204         case MPI_IOCSTATUS_SUCCESS:
3205         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:
3206                 if ((sstate & MPI_SCSI_STATE_NO_SCSI_STATUS) != 0) {
3207                         /*
3208                          * Status was never returned for this transaction.
3209                          */
3210                         mpt_set_ccb_status(ccb, CAM_UNEXP_BUSFREE);
3211                 } else if (scsi_io_reply->SCSIStatus != SCSI_STATUS_OK) {
3212                         ccb->csio.scsi_status = scsi_io_reply->SCSIStatus;
3213                         mpt_set_ccb_status(ccb, CAM_SCSI_STATUS_ERROR);
3214                         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_FAILED) != 0)
3215                                 mpt_set_ccb_status(ccb, CAM_AUTOSENSE_FAIL);
3216                 } else if ((sstate & MPI_SCSI_STATE_RESPONSE_INFO_VALID) != 0) {
3217
3218                         /* XXX Handle SPI-Packet and FCP-2 response info. */
3219                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3220                 } else
3221                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3222                 break;
3223         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
3224                 mpt_set_ccb_status(ccb, CAM_DATA_RUN_ERR);
3225                 break;
3226         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
3227                 mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3228                 break;
3229         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3230                 /*
3231                  * Since selection timeouts and "device really not
3232                  * there" are grouped into this error code, report
3233                  * selection timeout.  Selection timeouts are
3234                  * typically retried before giving up on the device
3235                  * whereas "device not there" errors are considered
3236                  * unretryable.
3237                  */
3238                 mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3239                 break;
3240         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3241                 mpt_set_ccb_status(ccb, CAM_SEQUENCE_FAIL);
3242                 break;
3243         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
3244                 mpt_set_ccb_status(ccb, CAM_PATH_INVALID);
3245                 break;
3246         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
3247                 mpt_set_ccb_status(ccb, CAM_TID_INVALID);
3248                 break;
3249         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3250                 ccb->ccb_h.status = CAM_UA_TERMIO;
3251                 break;
3252         case MPI_IOCSTATUS_INVALID_STATE:
3253                 /*
3254                  * The IOC has been reset.  Emulate a bus reset.
3255                  */
3256                 /* FALLTHROUGH */
3257         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
3258                 ccb->ccb_h.status = CAM_SCSI_BUS_RESET;
3259                 break;
3260         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
3261         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
3262                 /*
3263                  * Don't clobber any timeout status that has
3264                  * already been set for this transaction.  We
3265                  * want the SCSI layer to be able to differentiate
3266                  * between the command we aborted due to timeout
3267                  * and any innocent bystanders.
3268                  */
3269                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG)
3270                         break;
3271                 mpt_set_ccb_status(ccb, CAM_REQ_TERMIO);
3272                 break;
3273
3274         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
3275                 mpt_set_ccb_status(ccb, CAM_RESRC_UNAVAIL);
3276                 break;
3277         case MPI_IOCSTATUS_BUSY:
3278                 mpt_set_ccb_status(ccb, CAM_BUSY);
3279                 break;
3280         case MPI_IOCSTATUS_INVALID_FUNCTION:
3281         case MPI_IOCSTATUS_INVALID_SGL:
3282         case MPI_IOCSTATUS_INTERNAL_ERROR:
3283         case MPI_IOCSTATUS_INVALID_FIELD:
3284         default:
3285                 /* XXX
3286                  * Some of the above may need to kick
3287                  * of a recovery action!!!!
3288                  */
3289                 ccb->ccb_h.status = CAM_UNREC_HBA_ERROR;
3290                 break;
3291         }
3292
3293         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3294                 mpt_freeze_ccb(ccb);
3295         }
3296
3297         return (TRUE);
3298 }
3299
3300 static void
3301 mpt_action(struct cam_sim *sim, union ccb *ccb)
3302 {
3303         struct mpt_softc *mpt;
3304         struct ccb_trans_settings *cts;
3305         target_id_t tgt;
3306         lun_id_t lun;
3307         int raid_passthru;
3308
3309         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("mpt_action\n"));
3310
3311         mpt = (struct mpt_softc *)cam_sim_softc(sim);
3312         raid_passthru = (sim == mpt->phydisk_sim);
3313         MPT_LOCK_ASSERT(mpt);
3314
3315         tgt = ccb->ccb_h.target_id;
3316         lun = ccb->ccb_h.target_lun;
3317         if (raid_passthru &&
3318             ccb->ccb_h.func_code != XPT_PATH_INQ &&
3319             ccb->ccb_h.func_code != XPT_RESET_BUS &&
3320             ccb->ccb_h.func_code != XPT_RESET_DEV) {
3321                 CAMLOCK_2_MPTLOCK(mpt);
3322                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
3323                         MPTLOCK_2_CAMLOCK(mpt);
3324                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3325                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
3326                         xpt_done(ccb);
3327                         return;
3328                 }
3329                 MPTLOCK_2_CAMLOCK(mpt);
3330         }
3331         ccb->ccb_h.ccb_mpt_ptr = mpt;
3332
3333         switch (ccb->ccb_h.func_code) {
3334         case XPT_SCSI_IO:       /* Execute the requested I/O operation */
3335                 /*
3336                  * Do a couple of preliminary checks...
3337                  */
3338                 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
3339                         if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
3340                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3341                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3342                                 break;
3343                         }
3344                 }
3345                 /* Max supported CDB length is 16 bytes */
3346                 /* XXX Unless we implement the new 32byte message type */
3347                 if (ccb->csio.cdb_len >
3348                     sizeof (((PTR_MSG_SCSI_IO_REQUEST)0)->CDB)) {
3349                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3350                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3351                         break;
3352                 }
3353 #ifdef  MPT_TEST_MULTIPATH
3354                 if (mpt->failure_id == ccb->ccb_h.target_id) {
3355                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3356                         mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3357                         break;
3358                 }
3359 #endif
3360                 ccb->csio.scsi_status = SCSI_STATUS_OK;
3361                 mpt_start(sim, ccb);
3362                 return;
3363
3364         case XPT_RESET_BUS:
3365                 if (raid_passthru) {
3366                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3367                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3368                         break;
3369                 }
3370         case XPT_RESET_DEV:
3371                 if (ccb->ccb_h.func_code == XPT_RESET_BUS) {
3372                         if (bootverbose) {
3373                                 xpt_print(ccb->ccb_h.path, "reset bus\n");
3374                         }
3375                 } else {
3376                         xpt_print(ccb->ccb_h.path, "reset device\n");
3377                 }
3378                 CAMLOCK_2_MPTLOCK(mpt);
3379                 (void) mpt_bus_reset(mpt, tgt, lun, FALSE);
3380                 MPTLOCK_2_CAMLOCK(mpt);
3381
3382                 /*
3383                  * mpt_bus_reset is always successful in that it
3384                  * will fall back to a hard reset should a bus
3385                  * reset attempt fail.
3386                  */
3387                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3388                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3389                 break;
3390
3391         case XPT_ABORT:
3392         {
3393                 union ccb *accb = ccb->cab.abort_ccb;
3394                 CAMLOCK_2_MPTLOCK(mpt);
3395                 switch (accb->ccb_h.func_code) {
3396                 case XPT_ACCEPT_TARGET_IO:
3397                 case XPT_IMMED_NOTIFY:
3398                         ccb->ccb_h.status = mpt_abort_target_ccb(mpt, ccb);
3399                         break;
3400                 case XPT_CONT_TARGET_IO:
3401                         mpt_prt(mpt, "cannot abort active CTIOs yet\n");
3402                         ccb->ccb_h.status = CAM_UA_ABORT;
3403                         break;
3404                 case XPT_SCSI_IO:
3405                         ccb->ccb_h.status = CAM_UA_ABORT;
3406                         break;
3407                 default:
3408                         ccb->ccb_h.status = CAM_REQ_INVALID;
3409                         break;
3410                 }
3411                 MPTLOCK_2_CAMLOCK(mpt);
3412                 break;
3413         }
3414
3415 #ifdef  CAM_NEW_TRAN_CODE
3416 #define IS_CURRENT_SETTINGS(c)  ((c)->type == CTS_TYPE_CURRENT_SETTINGS)
3417 #else
3418 #define IS_CURRENT_SETTINGS(c)  ((c)->flags & CCB_TRANS_CURRENT_SETTINGS)
3419 #endif
3420 #define DP_DISC_ENABLE  0x1
3421 #define DP_DISC_DISABL  0x2
3422 #define DP_DISC         (DP_DISC_ENABLE|DP_DISC_DISABL)
3423
3424 #define DP_TQING_ENABLE 0x4
3425 #define DP_TQING_DISABL 0x8
3426 #define DP_TQING        (DP_TQING_ENABLE|DP_TQING_DISABL)
3427
3428 #define DP_WIDE         0x10
3429 #define DP_NARROW       0x20
3430 #define DP_WIDTH        (DP_WIDE|DP_NARROW)
3431
3432 #define DP_SYNC         0x40
3433
3434         case XPT_SET_TRAN_SETTINGS:     /* Nexus Settings */
3435         {
3436 #ifdef  CAM_NEW_TRAN_CODE
3437                 struct ccb_trans_settings_scsi *scsi;
3438                 struct ccb_trans_settings_spi *spi;
3439 #endif
3440                 uint8_t dval;
3441                 u_int period;
3442                 u_int offset;
3443                 int i, j;
3444
3445                 cts = &ccb->cts;
3446
3447                 if (mpt->is_fc || mpt->is_sas) {
3448                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3449                         break;
3450                 }
3451
3452 #ifdef  CAM_NEW_TRAN_CODE
3453                 scsi = &cts->proto_specific.scsi;
3454                 spi = &cts->xport_specific.spi;
3455
3456                 /*
3457                  * We can be called just to valid transport and proto versions
3458                  */
3459                 if (scsi->valid == 0 && spi->valid == 0) {
3460                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3461                         break;
3462                 }
3463 #endif
3464
3465                 /*
3466                  * Skip attempting settings on RAID volume disks.
3467                  * Other devices on the bus get the normal treatment.
3468                  */
3469                 if (mpt->phydisk_sim && raid_passthru == 0 &&
3470                     mpt_is_raid_volume(mpt, tgt) != 0) {
3471                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3472                             "no transfer settings for RAID vols\n");
3473                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3474                         break;
3475                 }
3476
3477                 i = mpt->mpt_port_page2.PortSettings &
3478                     MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
3479                 j = mpt->mpt_port_page2.PortFlags &
3480                     MPI_SCSIPORTPAGE2_PORT_FLAGS_DV_MASK;
3481                 if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS &&
3482                     j == MPI_SCSIPORTPAGE2_PORT_FLAGS_OFF_DV) {
3483                         mpt_lprt(mpt, MPT_PRT_ALWAYS,
3484                             "honoring BIOS transfer negotiations\n");
3485                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3486                         break;
3487                 }
3488
3489                 dval = 0;
3490                 period = 0;
3491                 offset = 0;
3492
3493 #ifndef CAM_NEW_TRAN_CODE
3494                 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
3495                         dval |= (cts->flags & CCB_TRANS_DISC_ENB) ?
3496                             DP_DISC_ENABLE : DP_DISC_DISABL;
3497                 }
3498
3499                 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
3500                         dval |= (cts->flags & CCB_TRANS_TAG_ENB) ?
3501                             DP_TQING_ENABLE : DP_TQING_DISABL;
3502                 }
3503
3504                 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
3505                         dval |= cts->bus_width ? DP_WIDE : DP_NARROW;
3506                 }
3507
3508                 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) &&
3509                     (cts->valid & CCB_TRANS_SYNC_OFFSET_VALID)) {
3510                         dval |= DP_SYNC;
3511                         period = cts->sync_period;
3512                         offset = cts->sync_offset;
3513                 }
3514 #else
3515                 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
3516                         dval |= ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) ?
3517                             DP_DISC_ENABLE : DP_DISC_DISABL;
3518                 }
3519
3520                 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
3521                         dval |= ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) ?
3522                             DP_TQING_ENABLE : DP_TQING_DISABL;
3523                 }
3524
3525                 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
3526                         dval |= (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT) ?
3527                             DP_WIDE : DP_NARROW;
3528                 }
3529
3530                 if (spi->valid & CTS_SPI_VALID_SYNC_OFFSET) {
3531                         dval |= DP_SYNC;
3532                         offset = spi->sync_offset;
3533                 } else {
3534                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3535                             &mpt->mpt_dev_page1[tgt];
3536                         offset = ptr->RequestedParameters;
3537                         offset &= MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3538                         offset >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3539                 }
3540                 if (spi->valid & CTS_SPI_VALID_SYNC_RATE) {
3541                         dval |= DP_SYNC;
3542                         period = spi->sync_period;
3543                 } else {
3544                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3545                             &mpt->mpt_dev_page1[tgt];
3546                         period = ptr->RequestedParameters;
3547                         period &= MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3548                         period >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3549                 }
3550 #endif
3551                 CAMLOCK_2_MPTLOCK(mpt);
3552                 if (dval & DP_DISC_ENABLE) {
3553                         mpt->mpt_disc_enable |= (1 << tgt);
3554                 } else if (dval & DP_DISC_DISABL) {
3555                         mpt->mpt_disc_enable &= ~(1 << tgt);
3556                 }
3557                 if (dval & DP_TQING_ENABLE) {
3558                         mpt->mpt_tag_enable |= (1 << tgt);
3559                 } else if (dval & DP_TQING_DISABL) {
3560                         mpt->mpt_tag_enable &= ~(1 << tgt);
3561                 }
3562                 if (dval & DP_WIDTH) {
3563                         mpt_setwidth(mpt, tgt, 1);
3564                 }
3565                 if (dval & DP_SYNC) {
3566                         mpt_setsync(mpt, tgt, period, offset);
3567                 }
3568                 if (dval == 0) {
3569                         MPTLOCK_2_CAMLOCK(mpt);
3570                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3571                         break;
3572                 }
3573                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3574                     "set [%d]: 0x%x period 0x%x offset %d\n",
3575                     tgt, dval, period, offset);
3576                 if (mpt_update_spi_config(mpt, tgt)) {
3577                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3578                 } else {
3579                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3580                 }
3581                 MPTLOCK_2_CAMLOCK(mpt);
3582                 break;
3583         }
3584         case XPT_GET_TRAN_SETTINGS:
3585         {
3586 #ifdef  CAM_NEW_TRAN_CODE
3587                 struct ccb_trans_settings_scsi *scsi;
3588                 cts = &ccb->cts;
3589                 cts->protocol = PROTO_SCSI;
3590                 if (mpt->is_fc) {
3591                         struct ccb_trans_settings_fc *fc =
3592                             &cts->xport_specific.fc;
3593                         cts->protocol_version = SCSI_REV_SPC;
3594                         cts->transport = XPORT_FC;
3595                         cts->transport_version = 0;
3596                         fc->valid = CTS_FC_VALID_SPEED;
3597                         fc->bitrate = 100000;
3598                 } else if (mpt->is_sas) {
3599                         struct ccb_trans_settings_sas *sas =
3600                             &cts->xport_specific.sas;
3601                         cts->protocol_version = SCSI_REV_SPC2;
3602                         cts->transport = XPORT_SAS;
3603                         cts->transport_version = 0;
3604                         sas->valid = CTS_SAS_VALID_SPEED;
3605                         sas->bitrate = 300000;
3606                 } else {
3607                         cts->protocol_version = SCSI_REV_2;
3608                         cts->transport = XPORT_SPI;
3609                         cts->transport_version = 2;
3610                         if (mpt_get_spi_settings(mpt, cts) != 0) {
3611                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3612                                 break;
3613                         }
3614                 }
3615                 scsi = &cts->proto_specific.scsi;
3616                 scsi->valid = CTS_SCSI_VALID_TQ;
3617                 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3618 #else
3619                 cts = &ccb->cts;
3620                 if (mpt->is_fc) {
3621                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3622                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3623                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3624                 } else if (mpt->is_sas) {
3625                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3626                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3627                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3628                 } else if (mpt_get_spi_settings(mpt, cts) != 0) {
3629                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3630                         break;
3631                 }
3632 #endif
3633                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3634                 break;
3635         }
3636         case XPT_CALC_GEOMETRY:
3637         {
3638                 struct ccb_calc_geometry *ccg;
3639
3640                 ccg = &ccb->ccg;
3641                 if (ccg->block_size == 0) {
3642                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3643                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3644                         break;
3645                 }
3646                 mpt_calc_geometry(ccg, /*extended*/1);
3647                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
3648                 break;
3649         }
3650         case XPT_PATH_INQ:              /* Path routing inquiry */
3651         {
3652                 struct ccb_pathinq *cpi = &ccb->cpi;
3653
3654                 cpi->version_num = 1;
3655                 cpi->target_sprt = 0;
3656                 cpi->hba_eng_cnt = 0;
3657                 cpi->max_target = mpt->port_facts[0].MaxDevices - 1;
3658                 cpi->maxio = (mpt->max_cam_seg_cnt - 1) * PAGE_SIZE;
3659                 /*
3660                  * FC cards report MAX_DEVICES of 512, but
3661                  * the MSG_SCSI_IO_REQUEST target id field
3662                  * is only 8 bits. Until we fix the driver
3663                  * to support 'channels' for bus overflow,
3664                  * just limit it.
3665                  */
3666                 if (cpi->max_target > 255) {
3667                         cpi->max_target = 255;
3668                 }
3669
3670                 /*
3671                  * VMware ESX reports > 16 devices and then dies when we probe.
3672                  */
3673                 if (mpt->is_spi && cpi->max_target > 15) {
3674                         cpi->max_target = 15;
3675                 }
3676                 if (mpt->is_spi)
3677                         cpi->max_lun = 7;
3678                 else
3679                         cpi->max_lun = MPT_MAX_LUNS;
3680                 cpi->initiator_id = mpt->mpt_ini_id;
3681                 cpi->bus_id = cam_sim_bus(sim);
3682
3683                 /*
3684                  * The base speed is the speed of the underlying connection.
3685                  */
3686 #ifdef  CAM_NEW_TRAN_CODE
3687                 cpi->protocol = PROTO_SCSI;
3688                 if (mpt->is_fc) {
3689                         cpi->hba_misc = PIM_NOBUSRESET;
3690                         cpi->base_transfer_speed = 100000;
3691                         cpi->hba_inquiry = PI_TAG_ABLE;
3692                         cpi->transport = XPORT_FC;
3693                         cpi->transport_version = 0;
3694                         cpi->protocol_version = SCSI_REV_SPC;
3695                 } else if (mpt->is_sas) {
3696                         cpi->hba_misc = PIM_NOBUSRESET;
3697                         cpi->base_transfer_speed = 300000;
3698                         cpi->hba_inquiry = PI_TAG_ABLE;
3699                         cpi->transport = XPORT_SAS;
3700                         cpi->transport_version = 0;
3701                         cpi->protocol_version = SCSI_REV_SPC2;
3702                 } else {
3703                         cpi->hba_misc = PIM_SEQSCAN;
3704                         cpi->base_transfer_speed = 3300;
3705                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3706                         cpi->transport = XPORT_SPI;
3707                         cpi->transport_version = 2;
3708                         cpi->protocol_version = SCSI_REV_2;
3709                 }
3710 #else
3711                 if (mpt->is_fc) {
3712                         cpi->hba_misc = PIM_NOBUSRESET;
3713                         cpi->base_transfer_speed = 100000;
3714                         cpi->hba_inquiry = PI_TAG_ABLE;
3715                 } else if (mpt->is_sas) {
3716                         cpi->hba_misc = PIM_NOBUSRESET;
3717                         cpi->base_transfer_speed = 300000;
3718                         cpi->hba_inquiry = PI_TAG_ABLE;
3719                 } else {
3720                         cpi->hba_misc = PIM_SEQSCAN;
3721                         cpi->base_transfer_speed = 3300;
3722                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3723                 }
3724 #endif
3725
3726                 /*
3727                  * We give our fake RAID passhtru bus a width that is MaxVolumes
3728                  * wide and restrict it to one lun.
3729                  */
3730                 if (raid_passthru) {
3731                         cpi->max_target = mpt->ioc_page2->MaxPhysDisks - 1;
3732                         cpi->initiator_id = cpi->max_target + 1;
3733                         cpi->max_lun = 0;
3734                 }
3735
3736                 if ((mpt->role & MPT_ROLE_INITIATOR) == 0) {
3737                         cpi->hba_misc |= PIM_NOINITIATOR;
3738                 }
3739                 if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
3740                         cpi->target_sprt =
3741                             PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
3742                 } else {
3743                         cpi->target_sprt = 0;
3744                 }
3745                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3746                 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
3747                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3748                 cpi->unit_number = cam_sim_unit(sim);
3749                 cpi->ccb_h.status = CAM_REQ_CMP;
3750                 break;
3751         }
3752         case XPT_EN_LUN:                /* Enable LUN as a target */
3753         {
3754                 int result;
3755
3756                 CAMLOCK_2_MPTLOCK(mpt);
3757                 if (ccb->cel.enable)
3758                         result = mpt_enable_lun(mpt,
3759                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3760                 else
3761                         result = mpt_disable_lun(mpt,
3762                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3763                 MPTLOCK_2_CAMLOCK(mpt);
3764                 if (result == 0) {
3765                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3766                 } else {
3767                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3768                 }
3769                 break;
3770         }
3771         case XPT_NOTIFY_ACK:            /* recycle notify ack */
3772         case XPT_IMMED_NOTIFY:          /* Add Immediate Notify Resource */
3773         case XPT_ACCEPT_TARGET_IO:      /* Add Accept Target IO Resource */
3774         {
3775                 tgt_resource_t *trtp;
3776                 lun_id_t lun = ccb->ccb_h.target_lun;
3777                 ccb->ccb_h.sim_priv.entries[0].field = 0;
3778                 ccb->ccb_h.sim_priv.entries[1].ptr = mpt;
3779                 ccb->ccb_h.flags = 0;
3780
3781                 if (lun == CAM_LUN_WILDCARD) {
3782                         if (ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
3783                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3784                                 break;
3785                         }
3786                         trtp = &mpt->trt_wildcard;
3787                 } else if (lun >= MPT_MAX_LUNS) {
3788                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3789                         break;
3790                 } else {
3791                         trtp = &mpt->trt[lun];
3792                 }
3793                 CAMLOCK_2_MPTLOCK(mpt);
3794                 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
3795                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3796                             "Put FREE ATIO %p lun %d\n", ccb, lun);
3797                         STAILQ_INSERT_TAIL(&trtp->atios, &ccb->ccb_h,
3798                             sim_links.stqe);
3799                 } else if (ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
3800                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3801                             "Put FREE INOT lun %d\n", lun);
3802                         STAILQ_INSERT_TAIL(&trtp->inots, &ccb->ccb_h,
3803                             sim_links.stqe);
3804                 } else {
3805                         mpt_lprt(mpt, MPT_PRT_ALWAYS, "Got Notify ACK\n");
3806                 }
3807                 mpt_set_ccb_status(ccb, CAM_REQ_INPROG);
3808                 MPTLOCK_2_CAMLOCK(mpt);
3809                 return;
3810         }
3811         case XPT_CONT_TARGET_IO:
3812                 CAMLOCK_2_MPTLOCK(mpt);
3813                 mpt_target_start_io(mpt, ccb);
3814                 MPTLOCK_2_CAMLOCK(mpt);
3815                 return;
3816
3817         default:
3818                 ccb->ccb_h.status = CAM_REQ_INVALID;
3819                 break;
3820         }
3821         xpt_done(ccb);
3822 }
3823
3824 static int
3825 mpt_get_spi_settings(struct mpt_softc *mpt, struct ccb_trans_settings *cts)
3826 {
3827 #ifdef  CAM_NEW_TRAN_CODE
3828         struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3829         struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3830 #endif
3831         target_id_t tgt;
3832         uint32_t dval, pval, oval;
3833         int rv;
3834
3835         if (IS_CURRENT_SETTINGS(cts) == 0) {
3836                 tgt = cts->ccb_h.target_id;
3837         } else if (xpt_path_sim(cts->ccb_h.path) == mpt->phydisk_sim) {
3838                 if (mpt_map_physdisk(mpt, (union ccb *)cts, &tgt)) {
3839                         return (-1);
3840                 }
3841         } else {
3842                 tgt = cts->ccb_h.target_id;
3843         }
3844
3845         /*
3846          * We aren't looking at Port Page 2 BIOS settings here-
3847          * sometimes these have been known to be bogus XXX.
3848          *
3849          * For user settings, we pick the max from port page 0
3850          *
3851          * For current settings we read the current settings out from
3852          * device page 0 for that target.
3853          */
3854         if (IS_CURRENT_SETTINGS(cts)) {
3855                 CONFIG_PAGE_SCSI_DEVICE_0 tmp;
3856                 dval = 0;
3857
3858                 CAMLOCK_2_MPTLOCK(mpt);
3859                 tmp = mpt->mpt_dev_page0[tgt];
3860                 rv = mpt_read_cur_cfg_page(mpt, tgt, &tmp.Header,
3861                     sizeof(tmp), FALSE, 5000);
3862                 if (rv) {
3863                         MPTLOCK_2_CAMLOCK(mpt);
3864                         mpt_prt(mpt, "can't get tgt %d config page 0\n", tgt);
3865                         return (rv);
3866                 }
3867                 mpt2host_config_page_scsi_device_0(&tmp);
3868
3869                 MPTLOCK_2_CAMLOCK(mpt);
3870                 mpt_lprt(mpt, MPT_PRT_DEBUG,
3871                     "mpt_get_spi_settings[%d]: current NP %x Info %x\n", tgt,
3872                     tmp.NegotiatedParameters, tmp.Information);
3873                 dval |= (tmp.NegotiatedParameters & MPI_SCSIDEVPAGE0_NP_WIDE) ?
3874                     DP_WIDE : DP_NARROW;
3875                 dval |= (mpt->mpt_disc_enable & (1 << tgt)) ?
3876                     DP_DISC_ENABLE : DP_DISC_DISABL;
3877                 dval |= (mpt->mpt_tag_enable & (1 << tgt)) ?
3878                     DP_TQING_ENABLE : DP_TQING_DISABL;
3879                 oval = tmp.NegotiatedParameters;
3880                 oval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK;
3881                 oval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
3882                 pval = tmp.NegotiatedParameters;
3883                 pval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK;
3884                 pval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
3885                 mpt->mpt_dev_page0[tgt] = tmp;
3886         } else {
3887                 dval = DP_WIDE|DP_DISC_ENABLE|DP_TQING_ENABLE|DP_SYNC;
3888                 oval = mpt->mpt_port_page0.Capabilities;
3889                 oval = MPI_SCSIPORTPAGE0_CAP_GET_MAX_SYNC_OFFSET(oval);
3890                 pval = mpt->mpt_port_page0.Capabilities;
3891                 pval = MPI_SCSIPORTPAGE0_CAP_GET_MIN_SYNC_PERIOD(pval);
3892         }
3893
3894 #ifndef CAM_NEW_TRAN_CODE
3895         cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
3896         cts->valid = 0;
3897         cts->sync_period = pval;
3898         cts->sync_offset = oval;
3899         cts->valid |= CCB_TRANS_SYNC_RATE_VALID;
3900         cts->valid |= CCB_TRANS_SYNC_OFFSET_VALID;
3901         cts->valid |= CCB_TRANS_BUS_WIDTH_VALID;
3902         if (dval & DP_WIDE) {
3903                 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3904         } else {
3905                 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3906         }
3907         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3908                 cts->valid |= CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3909                 if (dval & DP_DISC_ENABLE) {
3910                         cts->flags |= CCB_TRANS_DISC_ENB;
3911                 }
3912                 if (dval & DP_TQING_ENABLE) {
3913                         cts->flags |= CCB_TRANS_TAG_ENB;
3914                 }
3915         }
3916 #else
3917         spi->valid = 0;
3918         scsi->valid = 0;
3919         spi->flags = 0;
3920         scsi->flags = 0;
3921         spi->sync_offset = oval;
3922         spi->sync_period = pval;
3923         spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3924         spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3925         spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
3926         if (dval & DP_WIDE) {
3927                 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3928         } else {
3929                 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3930         }
3931         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3932                 scsi->valid = CTS_SCSI_VALID_TQ;
3933                 if (dval & DP_TQING_ENABLE) {
3934                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3935                 }
3936                 spi->valid |= CTS_SPI_VALID_DISC;
3937                 if (dval & DP_DISC_ENABLE) {
3938                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3939                 }
3940         }
3941 #endif
3942         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3943             "mpt_get_spi_settings[%d]: %s flags 0x%x per 0x%x off=%d\n", tgt,
3944             IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM ", dval, pval, oval);
3945         return (0);
3946 }
3947
3948 static void
3949 mpt_setwidth(struct mpt_softc *mpt, int tgt, int onoff)
3950 {
3951         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3952
3953         ptr = &mpt->mpt_dev_page1[tgt];
3954         if (onoff) {
3955                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_WIDE;
3956         } else {
3957                 ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_WIDE;
3958         }
3959 }
3960
3961 static void
3962 mpt_setsync(struct mpt_softc *mpt, int tgt, int period, int offset)
3963 {
3964         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3965
3966         ptr = &mpt->mpt_dev_page1[tgt];
3967         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3968         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3969         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_DT;
3970         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_QAS;
3971         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_IU;
3972         if (period == 0) {
3973                 return;
3974         }
3975         ptr->RequestedParameters |=
3976             period << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3977         ptr->RequestedParameters |=
3978             offset << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3979         if (period < 0xa) {
3980                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_DT;
3981         }
3982         if (period < 0x9) {
3983                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_QAS;
3984                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_IU;
3985         }
3986 }
3987
3988 static int
3989 mpt_update_spi_config(struct mpt_softc *mpt, int tgt)
3990 {
3991         CONFIG_PAGE_SCSI_DEVICE_1 tmp;
3992         int rv;
3993
3994         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3995             "mpt_update_spi_config[%d].page1: Requested Params 0x%08x\n",
3996             tgt, mpt->mpt_dev_page1[tgt].RequestedParameters);
3997         tmp = mpt->mpt_dev_page1[tgt];
3998         host2mpt_config_page_scsi_device_1(&tmp);
3999         rv = mpt_write_cur_cfg_page(mpt, tgt,
4000             &tmp.Header, sizeof(tmp), FALSE, 5000);
4001         if (rv) {
4002                 mpt_prt(mpt, "mpt_update_spi_config: write cur page failed\n");
4003                 return (-1);
4004         }
4005         return (0);
4006 }
4007
4008 static void
4009 mpt_calc_geometry(struct ccb_calc_geometry *ccg, int extended)
4010 {
4011 #if __FreeBSD_version >= 500000
4012         cam_calc_geometry(ccg, extended);
4013 #else
4014         uint32_t size_mb;
4015         uint32_t secs_per_cylinder;
4016
4017         if (ccg->block_size == 0) {
4018                 ccg->ccb_h.status = CAM_REQ_INVALID;
4019                 return;
4020         }
4021         size_mb = ccg->volume_size / ((1024L * 1024L) / ccg->block_size);
4022         if (size_mb > 1024 && extended) {
4023                 ccg->heads = 255;
4024                 ccg->secs_per_track = 63;
4025         } else {
4026                 ccg->heads = 64;
4027                 ccg->secs_per_track = 32;
4028         }
4029         secs_per_cylinder = ccg->heads * ccg->secs_per_track;
4030         ccg->cylinders = ccg->volume_size / secs_per_cylinder;
4031         ccg->ccb_h.status = CAM_REQ_CMP;
4032 #endif
4033 }
4034
4035 /****************************** Timeout Recovery ******************************/
4036 static int
4037 mpt_spawn_recovery_thread(struct mpt_softc *mpt)
4038 {
4039         int error;
4040
4041         error = mpt_kthread_create(mpt_recovery_thread, mpt,
4042             &mpt->recovery_thread, /*flags*/0,
4043             /*altstack*/0, "mpt_recovery%d", mpt->unit);
4044         return (error);
4045 }
4046
4047 static void
4048 mpt_terminate_recovery_thread(struct mpt_softc *mpt)
4049 {
4050
4051         if (mpt->recovery_thread == NULL) {
4052                 return;
4053         }
4054         mpt->shutdwn_recovery = 1;
4055         wakeup(mpt);
4056         /*
4057          * Sleep on a slightly different location
4058          * for this interlock just for added safety.
4059          */
4060         mpt_sleep(mpt, &mpt->recovery_thread, PUSER, "thtrm", 0);
4061 }
4062
4063 static void
4064 mpt_recovery_thread(void *arg)
4065 {
4066         struct mpt_softc *mpt;
4067
4068         mpt = (struct mpt_softc *)arg;
4069         MPT_LOCK(mpt);
4070         for (;;) {
4071                 if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4072                         if (mpt->shutdwn_recovery == 0) {
4073                                 mpt_sleep(mpt, mpt, PUSER, "idle", 0);
4074                         }
4075                 }
4076                 if (mpt->shutdwn_recovery != 0) {
4077                         break;
4078                 }
4079                 mpt_recover_commands(mpt);
4080         }
4081         mpt->recovery_thread = NULL;
4082         wakeup(&mpt->recovery_thread);
4083         MPT_UNLOCK(mpt);
4084         mpt_kthread_exit(0);
4085 }
4086
4087 static int
4088 mpt_scsi_send_tmf(struct mpt_softc *mpt, u_int type, u_int flags,
4089     u_int channel, u_int target, u_int lun, u_int abort_ctx, int sleep_ok)
4090 {
4091         MSG_SCSI_TASK_MGMT *tmf_req;
4092         int                 error;
4093
4094         /*
4095          * Wait for any current TMF request to complete.
4096          * We're only allowed to issue one TMF at a time.
4097          */
4098         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_FREE, REQ_STATE_FREE,
4099             sleep_ok, MPT_TMF_MAX_TIMEOUT);
4100         if (error != 0) {
4101                 mpt_reset(mpt, TRUE);
4102                 return (ETIMEDOUT);
4103         }
4104
4105         mpt_assign_serno(mpt, mpt->tmf_req);
4106         mpt->tmf_req->state = REQ_STATE_ALLOCATED|REQ_STATE_QUEUED;
4107
4108         tmf_req = (MSG_SCSI_TASK_MGMT *)mpt->tmf_req->req_vbuf;
4109         memset(tmf_req, 0, sizeof(*tmf_req));
4110         tmf_req->TargetID = target;
4111         tmf_req->Bus = channel;
4112         tmf_req->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
4113         tmf_req->TaskType = type;
4114         tmf_req->MsgFlags = flags;
4115         tmf_req->MsgContext =
4116             htole32(mpt->tmf_req->index | scsi_tmf_handler_id);
4117         if (lun > MPT_MAX_LUNS) {
4118                 tmf_req->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4119                 tmf_req->LUN[1] = lun & 0xff;
4120         } else {
4121                 tmf_req->LUN[1] = lun;
4122         }
4123         tmf_req->TaskMsgContext = abort_ctx;
4124
4125         mpt_lprt(mpt, MPT_PRT_DEBUG,
4126             "Issuing TMF %p:%u with MsgContext of 0x%x\n", mpt->tmf_req,
4127             mpt->tmf_req->serno, tmf_req->MsgContext);
4128         if (mpt->verbose > MPT_PRT_DEBUG) {
4129                 mpt_print_request(tmf_req);
4130         }
4131
4132         KASSERT(mpt_req_on_pending_list(mpt, mpt->tmf_req) == 0,
4133             ("mpt_scsi_send_tmf: tmf_req already on pending list"));
4134         TAILQ_INSERT_HEAD(&mpt->request_pending_list, mpt->tmf_req, links);
4135         error = mpt_send_handshake_cmd(mpt, sizeof(*tmf_req), tmf_req);
4136         if (error != MPT_OK) {
4137                 TAILQ_REMOVE(&mpt->request_pending_list, mpt->tmf_req, links);
4138                 mpt->tmf_req->state = REQ_STATE_FREE;
4139                 mpt_reset(mpt, TRUE);
4140         }
4141         return (error);
4142 }
4143
4144 /*
4145  * When a command times out, it is placed on the requeust_timeout_list
4146  * and we wake our recovery thread.  The MPT-Fusion architecture supports
4147  * only a single TMF operation at a time, so we serially abort/bdr, etc,
4148  * the timedout transactions.  The next TMF is issued either by the
4149  * completion handler of the current TMF waking our recovery thread,
4150  * or the TMF timeout handler causing a hard reset sequence.
4151  */
4152 static void
4153 mpt_recover_commands(struct mpt_softc *mpt)
4154 {
4155         request_t          *req;
4156         union ccb          *ccb;
4157         int                 error;
4158
4159         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4160                 /*
4161                  * No work to do- leave.
4162                  */
4163                 mpt_prt(mpt, "mpt_recover_commands: no requests.\n");
4164                 return;
4165         }
4166
4167         /*
4168          * Flush any commands whose completion coincides with their timeout.
4169          */
4170         mpt_intr(mpt);
4171
4172         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4173                 /*
4174                  * The timedout commands have already
4175                  * completed.  This typically means
4176                  * that either the timeout value was on
4177                  * the hairy edge of what the device
4178                  * requires or - more likely - interrupts
4179                  * are not happening.
4180                  */
4181                 mpt_prt(mpt, "Timedout requests already complete. "
4182                     "Interrupts may not be functioning.\n");
4183                 mpt_enable_ints(mpt);
4184                 return;
4185         }
4186
4187         /*
4188          * We have no visibility into the current state of the
4189          * controller, so attempt to abort the commands in the
4190          * order they timed-out. For initiator commands, we
4191          * depend on the reply handler pulling requests off
4192          * the timeout list.
4193          */
4194         while ((req = TAILQ_FIRST(&mpt->request_timeout_list)) != NULL) {
4195                 uint16_t status;
4196                 uint8_t response;
4197                 MSG_REQUEST_HEADER *hdrp = req->req_vbuf;
4198
4199                 mpt_prt(mpt, "attempting to abort req %p:%u function %x\n",
4200                     req, req->serno, hdrp->Function);
4201                 ccb = req->ccb;
4202                 if (ccb == NULL) {
4203                         mpt_prt(mpt, "null ccb in timed out request. "
4204                             "Resetting Controller.\n");
4205                         mpt_reset(mpt, TRUE);
4206                         continue;
4207                 }
4208                 mpt_set_ccb_status(ccb, CAM_CMD_TIMEOUT);
4209
4210                 /*
4211                  * Check to see if this is not an initiator command and
4212                  * deal with it differently if it is.
4213                  */
4214                 switch (hdrp->Function) {
4215                 case MPI_FUNCTION_SCSI_IO_REQUEST:
4216                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
4217                         break;
4218                 default:
4219                         /*
4220                          * XXX: FIX ME: need to abort target assists...
4221                          */
4222                         mpt_prt(mpt, "just putting it back on the pend q\n");
4223                         TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
4224                         TAILQ_INSERT_HEAD(&mpt->request_pending_list, req,
4225                             links);
4226                         continue;
4227                 }
4228
4229                 error = mpt_scsi_send_tmf(mpt,
4230                     MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
4231                     0, 0, ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
4232                     htole32(req->index | scsi_io_handler_id), TRUE);
4233
4234                 if (error != 0) {
4235                         /*
4236                          * mpt_scsi_send_tmf hard resets on failure, so no
4237                          * need to do so here.  Our queue should be emptied
4238                          * by the hard reset.
4239                          */
4240                         continue;
4241                 }
4242
4243                 error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
4244                     REQ_STATE_DONE, TRUE, 500);
4245
4246                 status = le16toh(mpt->tmf_req->IOCStatus);
4247                 response = mpt->tmf_req->ResponseCode;
4248                 mpt->tmf_req->state = REQ_STATE_FREE;
4249
4250                 if (error != 0) {
4251                         /*
4252                          * If we've errored out,, reset the controller.
4253                          */
4254                         mpt_prt(mpt, "mpt_recover_commands: abort timed-out. "
4255                             "Resetting controller\n");
4256                         mpt_reset(mpt, TRUE);
4257                         continue;
4258                 }
4259
4260                 if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
4261                         mpt_prt(mpt, "mpt_recover_commands: IOC Status 0x%x. "
4262                             "Resetting controller.\n", status);
4263                         mpt_reset(mpt, TRUE);
4264                         continue;
4265                 }
4266
4267                 if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
4268                     response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
4269                         mpt_prt(mpt, "mpt_recover_commands: TMF Response 0x%x. "
4270                             "Resetting controller.\n", response);
4271                         mpt_reset(mpt, TRUE);
4272                         continue;
4273                 }
4274                 mpt_prt(mpt, "abort of req %p:%u completed\n", req, req->serno);
4275         }
4276 }
4277
4278 /************************ Target Mode Support ****************************/
4279 static void
4280 mpt_fc_post_els(struct mpt_softc *mpt, request_t *req, int ioindex)
4281 {
4282         MSG_LINK_SERVICE_BUFFER_POST_REQUEST *fc;
4283         PTR_SGE_TRANSACTION32 tep;
4284         PTR_SGE_SIMPLE32 se;
4285         bus_addr_t paddr;
4286         uint32_t fl;
4287
4288         paddr = req->req_pbuf;
4289         paddr += MPT_RQSL(mpt);
4290
4291         fc = req->req_vbuf;
4292         memset(fc, 0, MPT_REQUEST_AREA);
4293         fc->BufferCount = 1;
4294         fc->Function = MPI_FUNCTION_FC_LINK_SRVC_BUF_POST;
4295         fc->MsgContext = htole32(req->index | fc_els_handler_id);
4296
4297         /*
4298          * Okay, set up ELS buffer pointers. ELS buffer pointers
4299          * consist of a TE SGL element (with details length of zero)
4300          * followed by a SIMPLE SGL element which holds the address
4301          * of the buffer.
4302          */
4303
4304         tep = (PTR_SGE_TRANSACTION32) &fc->SGL;
4305
4306         tep->ContextSize = 4;
4307         tep->Flags = 0;
4308         tep->TransactionContext[0] = htole32(ioindex);
4309
4310         se = (PTR_SGE_SIMPLE32) &tep->TransactionDetails[0];
4311         fl =
4312                 MPI_SGE_FLAGS_HOST_TO_IOC       |
4313                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4314                 MPI_SGE_FLAGS_LAST_ELEMENT      |
4315                 MPI_SGE_FLAGS_END_OF_LIST       |
4316                 MPI_SGE_FLAGS_END_OF_BUFFER;
4317         fl <<= MPI_SGE_FLAGS_SHIFT;
4318         fl |= (MPT_NRFM(mpt) - MPT_RQSL(mpt));
4319         se->FlagsLength = htole32(fl);
4320         se->Address = htole32((uint32_t) paddr);
4321         mpt_lprt(mpt, MPT_PRT_DEBUG,
4322             "add ELS index %d ioindex %d for %p:%u\n",
4323             req->index, ioindex, req, req->serno);
4324         KASSERT(((req->state & REQ_STATE_LOCKED) != 0),
4325             ("mpt_fc_post_els: request not locked"));
4326         mpt_send_cmd(mpt, req);
4327 }
4328
4329 static void
4330 mpt_post_target_command(struct mpt_softc *mpt, request_t *req, int ioindex)
4331 {
4332         PTR_MSG_TARGET_CMD_BUFFER_POST_REQUEST fc;
4333         PTR_CMD_BUFFER_DESCRIPTOR cb;
4334         bus_addr_t paddr;
4335
4336         paddr = req->req_pbuf;
4337         paddr += MPT_RQSL(mpt);
4338         memset(req->req_vbuf, 0, MPT_REQUEST_AREA);
4339         MPT_TGT_STATE(mpt, req)->state = TGT_STATE_LOADING;
4340
4341         fc = req->req_vbuf;
4342         fc->BufferCount = 1;
4343         fc->Function = MPI_FUNCTION_TARGET_CMD_BUFFER_POST;
4344         fc->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4345
4346         cb = &fc->Buffer[0];
4347         cb->IoIndex = htole16(ioindex);
4348         cb->u.PhysicalAddress32 = htole32((U32) paddr);
4349
4350         mpt_check_doorbell(mpt);
4351         mpt_send_cmd(mpt, req);
4352 }
4353
4354 static int
4355 mpt_add_els_buffers(struct mpt_softc *mpt)
4356 {
4357         int i;
4358
4359         if (mpt->is_fc == 0) {
4360                 return (TRUE);
4361         }
4362
4363         if (mpt->els_cmds_allocated) {
4364                 return (TRUE);
4365         }
4366
4367         mpt->els_cmd_ptrs = malloc(MPT_MAX_ELS * sizeof (request_t *),
4368             M_DEVBUF, M_NOWAIT | M_ZERO);
4369
4370         if (mpt->els_cmd_ptrs == NULL) {
4371                 return (FALSE);
4372         }
4373
4374         /*
4375          * Feed the chip some ELS buffer resources
4376          */
4377         for (i = 0; i < MPT_MAX_ELS; i++) {
4378                 request_t *req = mpt_get_request(mpt, FALSE);
4379                 if (req == NULL) {
4380                         break;
4381                 }
4382                 req->state |= REQ_STATE_LOCKED;
4383                 mpt->els_cmd_ptrs[i] = req;
4384                 mpt_fc_post_els(mpt, req, i);
4385         }
4386
4387         if (i == 0) {
4388                 mpt_prt(mpt, "unable to add ELS buffer resources\n");
4389                 free(mpt->els_cmd_ptrs, M_DEVBUF);
4390                 mpt->els_cmd_ptrs = NULL;
4391                 return (FALSE);
4392         }
4393         if (i != MPT_MAX_ELS) {
4394                 mpt_lprt(mpt, MPT_PRT_INFO,
4395                     "only added %d of %d  ELS buffers\n", i, MPT_MAX_ELS);
4396         }
4397         mpt->els_cmds_allocated = i;
4398         return(TRUE);
4399 }
4400
4401 static int
4402 mpt_add_target_commands(struct mpt_softc *mpt)
4403 {
4404         int i, max;
4405
4406         if (mpt->tgt_cmd_ptrs) {
4407                 return (TRUE);
4408         }
4409
4410         max = MPT_MAX_REQUESTS(mpt) >> 1;
4411         if (max > mpt->mpt_max_tgtcmds) {
4412                 max = mpt->mpt_max_tgtcmds;
4413         }
4414         mpt->tgt_cmd_ptrs =
4415             malloc(max * sizeof (request_t *), M_DEVBUF, M_NOWAIT | M_ZERO);
4416         if (mpt->tgt_cmd_ptrs == NULL) {
4417                 mpt_prt(mpt,
4418                     "mpt_add_target_commands: could not allocate cmd ptrs\n");
4419                 return (FALSE);
4420         }
4421
4422         for (i = 0; i < max; i++) {
4423                 request_t *req;
4424
4425                 req = mpt_get_request(mpt, FALSE);
4426                 if (req == NULL) {
4427                         break;
4428                 }
4429                 req->state |= REQ_STATE_LOCKED;
4430                 mpt->tgt_cmd_ptrs[i] = req;
4431                 mpt_post_target_command(mpt, req, i);
4432         }
4433
4434
4435         if (i == 0) {
4436                 mpt_lprt(mpt, MPT_PRT_ERROR, "could not add any target bufs\n");
4437                 free(mpt->tgt_cmd_ptrs, M_DEVBUF);
4438                 mpt->tgt_cmd_ptrs = NULL;
4439                 return (FALSE);
4440         }
4441
4442         mpt->tgt_cmds_allocated = i;
4443
4444         if (i < max) {
4445                 mpt_lprt(mpt, MPT_PRT_INFO,
4446                     "added %d of %d target bufs\n", i, max);
4447         }
4448         return (i);
4449 }
4450
4451 static int
4452 mpt_enable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4453 {
4454
4455         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4456                 mpt->twildcard = 1;
4457         } else if (lun >= MPT_MAX_LUNS) {
4458                 return (EINVAL);
4459         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4460                 return (EINVAL);
4461         }
4462         if (mpt->tenabled == 0) {
4463                 if (mpt->is_fc) {
4464                         (void) mpt_fc_reset_link(mpt, 0);
4465                 }
4466                 mpt->tenabled = 1;
4467         }
4468         if (lun == CAM_LUN_WILDCARD) {
4469                 mpt->trt_wildcard.enabled = 1;
4470         } else {
4471                 mpt->trt[lun].enabled = 1;
4472         }
4473         return (0);
4474 }
4475
4476 static int
4477 mpt_disable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4478 {
4479         int i;
4480
4481         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4482                 mpt->twildcard = 0;
4483         } else if (lun >= MPT_MAX_LUNS) {
4484                 return (EINVAL);
4485         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4486                 return (EINVAL);
4487         }
4488         if (lun == CAM_LUN_WILDCARD) {
4489                 mpt->trt_wildcard.enabled = 0;
4490         } else {
4491                 mpt->trt[lun].enabled = 0;
4492         }
4493         for (i = 0; i < MPT_MAX_LUNS; i++) {
4494                 if (mpt->trt[lun].enabled) {
4495                         break;
4496                 }
4497         }
4498         if (i == MPT_MAX_LUNS && mpt->twildcard == 0) {
4499                 if (mpt->is_fc) {
4500                         (void) mpt_fc_reset_link(mpt, 0);
4501                 }
4502                 mpt->tenabled = 0;
4503         }
4504         return (0);
4505 }
4506
4507 /*
4508  * Called with MPT lock held
4509  */
4510 static void
4511 mpt_target_start_io(struct mpt_softc *mpt, union ccb *ccb)
4512 {
4513         struct ccb_scsiio *csio = &ccb->csio;
4514         request_t *cmd_req = MPT_TAG_2_REQ(mpt, csio->tag_id);
4515         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
4516
4517         switch (tgt->state) {
4518         case TGT_STATE_IN_CAM:
4519                 break;
4520         case TGT_STATE_MOVING_DATA:
4521                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4522                 xpt_freeze_simq(mpt->sim, 1);
4523                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4524                 tgt->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4525                 MPTLOCK_2_CAMLOCK(mpt);
4526                 xpt_done(ccb);
4527                 CAMLOCK_2_MPTLOCK(mpt);
4528                 return;
4529         default:
4530                 mpt_prt(mpt, "ccb %p flags 0x%x tag 0x%08x had bad request "
4531                     "starting I/O\n", ccb, csio->ccb_h.flags, csio->tag_id);
4532                 mpt_tgt_dump_req_state(mpt, cmd_req);
4533                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
4534                 MPTLOCK_2_CAMLOCK(mpt);
4535                 xpt_done(ccb);
4536                 CAMLOCK_2_MPTLOCK(mpt);
4537                 return;
4538         }
4539
4540         if (csio->dxfer_len) {
4541                 bus_dmamap_callback_t *cb;
4542                 PTR_MSG_TARGET_ASSIST_REQUEST ta;
4543                 request_t *req;
4544
4545                 KASSERT((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE,
4546                     ("dxfer_len %u but direction is NONE\n", csio->dxfer_len));
4547
4548                 if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4549                         if (mpt->outofbeer == 0) {
4550                                 mpt->outofbeer = 1;
4551                                 xpt_freeze_simq(mpt->sim, 1);
4552                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4553                         }
4554                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4555                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4556                         MPTLOCK_2_CAMLOCK(mpt);
4557                         xpt_done(ccb);
4558                         CAMLOCK_2_MPTLOCK(mpt);
4559                         return;
4560                 }
4561                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4562                 if (sizeof (bus_addr_t) > 4) {
4563                         cb = mpt_execute_req_a64;
4564                 } else {
4565                         cb = mpt_execute_req;
4566                 }
4567
4568                 req->ccb = ccb;
4569                 ccb->ccb_h.ccb_req_ptr = req;
4570
4571                 /*
4572                  * Record the currently active ccb and the
4573                  * request for it in our target state area.
4574                  */
4575                 tgt->ccb = ccb;
4576                 tgt->req = req;
4577
4578                 memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4579                 ta = req->req_vbuf;
4580
4581                 if (mpt->is_sas) {
4582                         PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4583                              cmd_req->req_vbuf;
4584                         ta->QueueTag = ssp->InitiatorTag;
4585                 } else if (mpt->is_spi) {
4586                         PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4587                              cmd_req->req_vbuf;
4588                         ta->QueueTag = sp->Tag;
4589                 }
4590                 ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4591                 ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4592                 ta->ReplyWord = htole32(tgt->reply_desc);
4593                 if (csio->ccb_h.target_lun > MPT_MAX_LUNS) {
4594                         ta->LUN[0] =
4595                             0x40 | ((csio->ccb_h.target_lun >> 8) & 0x3f);
4596                         ta->LUN[1] = csio->ccb_h.target_lun & 0xff;
4597                 } else {
4598                         ta->LUN[1] = csio->ccb_h.target_lun;
4599                 }
4600
4601                 ta->RelativeOffset = tgt->bytes_xfered;
4602                 ta->DataLength = ccb->csio.dxfer_len;
4603                 if (ta->DataLength > tgt->resid) {
4604                         ta->DataLength = tgt->resid;
4605                 }
4606
4607                 /*
4608                  * XXX Should be done after data transfer completes?
4609                  */
4610                 tgt->resid -= csio->dxfer_len;
4611                 tgt->bytes_xfered += csio->dxfer_len;
4612
4613                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
4614                         ta->TargetAssistFlags |=
4615                             TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4616                 }
4617
4618 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4619                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
4620                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
4621                         ta->TargetAssistFlags |=
4622                             TARGET_ASSIST_FLAGS_AUTO_STATUS;
4623                 }
4624 #endif
4625                 tgt->state = TGT_STATE_SETTING_UP_FOR_DATA;
4626
4627                 mpt_lprt(mpt, MPT_PRT_DEBUG,
4628                     "DATA_CCB %p tag %x %u bytes %u resid flg %x req %p:%u "
4629                     "nxtstate=%d\n", csio, csio->tag_id, csio->dxfer_len,
4630                     tgt->resid, ccb->ccb_h.flags, req, req->serno, tgt->state);
4631
4632                 MPTLOCK_2_CAMLOCK(mpt);
4633                 if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
4634                         if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) {
4635                                 int error;
4636                                 int s = splsoftvm();
4637                                 error = bus_dmamap_load(mpt->buffer_dmat,
4638                                     req->dmap, csio->data_ptr, csio->dxfer_len,
4639                                     cb, req, 0);
4640                                 splx(s);
4641                                 if (error == EINPROGRESS) {
4642                                         xpt_freeze_simq(mpt->sim, 1);
4643                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4644                                 }
4645                         } else {
4646                                 /*
4647                                  * We have been given a pointer to single
4648                                  * physical buffer.
4649                                  */
4650                                 struct bus_dma_segment seg;
4651                                 seg.ds_addr = (bus_addr_t)
4652                                     (vm_offset_t)csio->data_ptr;
4653                                 seg.ds_len = csio->dxfer_len;
4654                                 (*cb)(req, &seg, 1, 0);
4655                         }
4656                 } else {
4657                         /*
4658                          * We have been given a list of addresses.
4659                          * This case could be easily supported but they are not
4660                          * currently generated by the CAM subsystem so there
4661                          * is no point in wasting the time right now.
4662                          */
4663                         struct bus_dma_segment *sgs;
4664                         if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
4665                                 (*cb)(req, NULL, 0, EFAULT);
4666                         } else {
4667                                 /* Just use the segments provided */
4668                                 sgs = (struct bus_dma_segment *)csio->data_ptr;
4669                                 (*cb)(req, sgs, csio->sglist_cnt, 0);
4670                         }
4671                 }
4672                 CAMLOCK_2_MPTLOCK(mpt);
4673         } else {
4674                 uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
4675
4676                 /*
4677                  * XXX: I don't know why this seems to happen, but
4678                  * XXX: completing the CCB seems to make things happy.
4679                  * XXX: This seems to happen if the initiator requests
4680                  * XXX: enough data that we have to do multiple CTIOs.
4681                  */
4682                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
4683                         mpt_lprt(mpt, MPT_PRT_DEBUG,
4684                             "Meaningless STATUS CCB (%p): flags %x status %x "
4685                             "resid %d bytes_xfered %u\n", ccb, ccb->ccb_h.flags,
4686                             ccb->ccb_h.status, tgt->resid, tgt->bytes_xfered);
4687                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
4688                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4689                         MPTLOCK_2_CAMLOCK(mpt);
4690                         xpt_done(ccb);
4691                         CAMLOCK_2_MPTLOCK(mpt);
4692                         return;
4693                 }
4694                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
4695                         sp = sense;
4696                         memcpy(sp, &csio->sense_data,
4697                            min(csio->sense_len, MPT_SENSE_SIZE));
4698                 }
4699                 mpt_scsi_tgt_status(mpt, ccb, cmd_req, csio->scsi_status, sp);
4700         }
4701 }
4702
4703 static void
4704 mpt_scsi_tgt_local(struct mpt_softc *mpt, request_t *cmd_req,
4705     uint32_t lun, int send, uint8_t *data, size_t length)
4706 {
4707         mpt_tgt_state_t *tgt;
4708         PTR_MSG_TARGET_ASSIST_REQUEST ta;
4709         SGE_SIMPLE32 *se;
4710         uint32_t flags;
4711         uint8_t *dptr;
4712         bus_addr_t pptr;
4713         request_t *req;
4714
4715         /*
4716          * We enter with resid set to the data load for the command.
4717          */
4718         tgt = MPT_TGT_STATE(mpt, cmd_req);
4719         if (length == 0 || tgt->resid == 0) {
4720                 tgt->resid = 0;
4721                 mpt_scsi_tgt_status(mpt, NULL, cmd_req, 0, NULL);
4722                 return;
4723         }
4724
4725         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4726                 mpt_prt(mpt, "out of resources- dropping local response\n");
4727                 return;
4728         }
4729         tgt->is_local = 1;
4730
4731
4732         memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4733         ta = req->req_vbuf;
4734
4735         if (mpt->is_sas) {
4736                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp = cmd_req->req_vbuf;
4737                 ta->QueueTag = ssp->InitiatorTag;
4738         } else if (mpt->is_spi) {
4739                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp = cmd_req->req_vbuf;
4740                 ta->QueueTag = sp->Tag;
4741         }
4742         ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4743         ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4744         ta->ReplyWord = htole32(tgt->reply_desc);
4745         if (lun > MPT_MAX_LUNS) {
4746                 ta->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4747                 ta->LUN[1] = lun & 0xff;
4748         } else {
4749                 ta->LUN[1] = lun;
4750         }
4751         ta->RelativeOffset = 0;
4752         ta->DataLength = length;
4753
4754         dptr = req->req_vbuf;
4755         dptr += MPT_RQSL(mpt);
4756         pptr = req->req_pbuf;
4757         pptr += MPT_RQSL(mpt);
4758         memcpy(dptr, data, min(length, MPT_RQSL(mpt)));
4759
4760         se = (SGE_SIMPLE32 *) &ta->SGL[0];
4761         memset(se, 0,sizeof (*se));
4762
4763         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
4764         if (send) {
4765                 ta->TargetAssistFlags |= TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4766                 flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
4767         }
4768         se->Address = pptr;
4769         MPI_pSGE_SET_LENGTH(se, length);
4770         flags |= MPI_SGE_FLAGS_LAST_ELEMENT;
4771         flags |= MPI_SGE_FLAGS_END_OF_LIST | MPI_SGE_FLAGS_END_OF_BUFFER;
4772         MPI_pSGE_SET_FLAGS(se, flags);
4773
4774         tgt->ccb = NULL;
4775         tgt->req = req;
4776         tgt->resid -= length;
4777         tgt->bytes_xfered = length;
4778 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4779         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
4780 #else
4781         tgt->state = TGT_STATE_MOVING_DATA;
4782 #endif
4783         mpt_send_cmd(mpt, req);
4784 }
4785
4786 /*
4787  * Abort queued up CCBs
4788  */
4789 static cam_status
4790 mpt_abort_target_ccb(struct mpt_softc *mpt, union ccb *ccb)
4791 {
4792         struct mpt_hdr_stailq *lp;
4793         struct ccb_hdr *srch;
4794         int found = 0;
4795         union ccb *accb = ccb->cab.abort_ccb;
4796         tgt_resource_t *trtp;
4797
4798         mpt_lprt(mpt, MPT_PRT_DEBUG, "aborting ccb %p\n", accb);
4799
4800         if (ccb->ccb_h.target_lun == CAM_LUN_WILDCARD) {
4801                 trtp = &mpt->trt_wildcard;
4802         } else {
4803                 trtp = &mpt->trt[ccb->ccb_h.target_lun];
4804         }
4805
4806         if (accb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
4807                 lp = &trtp->atios;
4808         } else if (accb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
4809                 lp = &trtp->inots;
4810         } else {
4811                 return (CAM_REQ_INVALID);
4812         }
4813
4814         STAILQ_FOREACH(srch, lp, sim_links.stqe) {
4815                 if (srch == &accb->ccb_h) {
4816                         found = 1;
4817                         STAILQ_REMOVE(lp, srch, ccb_hdr, sim_links.stqe);
4818                         break;
4819                 }
4820         }
4821         if (found) {
4822                 accb->ccb_h.status = CAM_REQ_ABORTED;
4823                 xpt_done(accb);
4824                 return (CAM_REQ_CMP);
4825         }
4826         mpt_prt(mpt, "mpt_abort_tgt_ccb: CCB %p not found\n", ccb);
4827         return (CAM_PATH_INVALID);
4828 }
4829
4830 /*
4831  * Ask the MPT to abort the current target command
4832  */
4833 static int
4834 mpt_abort_target_cmd(struct mpt_softc *mpt, request_t *cmd_req)
4835 {
4836         int error;
4837         request_t *req;
4838         PTR_MSG_TARGET_MODE_ABORT abtp;
4839
4840         req = mpt_get_request(mpt, FALSE);
4841         if (req == NULL) {
4842                 return (-1);
4843         }
4844         abtp = req->req_vbuf;
4845         memset(abtp, 0, sizeof (*abtp));
4846
4847         abtp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4848         abtp->AbortType = TARGET_MODE_ABORT_TYPE_EXACT_IO;
4849         abtp->Function = MPI_FUNCTION_TARGET_MODE_ABORT;
4850         abtp->ReplyWord = htole32(MPT_TGT_STATE(mpt, cmd_req)->reply_desc);
4851         error = 0;
4852         if (mpt->is_fc || mpt->is_sas) {
4853                 mpt_send_cmd(mpt, req);
4854         } else {
4855                 error = mpt_send_handshake_cmd(mpt, sizeof(*req), req);
4856         }
4857         return (error);
4858 }
4859
4860 /*
4861  * WE_TRUST_AUTO_GOOD_STATUS- I've found that setting
4862  * TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS leads the
4863  * FC929 to set bogus FC_RSP fields (nonzero residuals
4864  * but w/o RESID fields set). This causes QLogic initiators
4865  * to think maybe that a frame was lost.
4866  *
4867  * WE_CAN_USE_AUTO_REPOST- we can't use AUTO_REPOST because
4868  * we use allocated requests to do TARGET_ASSIST and we
4869  * need to know when to release them.
4870  */
4871
4872 static void
4873 mpt_scsi_tgt_status(struct mpt_softc *mpt, union ccb *ccb, request_t *cmd_req,
4874     uint8_t status, uint8_t const *sense_data)
4875 {
4876         uint8_t *cmd_vbuf;
4877         mpt_tgt_state_t *tgt;
4878         PTR_MSG_TARGET_STATUS_SEND_REQUEST tp;
4879         request_t *req;
4880         bus_addr_t paddr;
4881         int resplen = 0;
4882         uint32_t fl;
4883
4884         cmd_vbuf = cmd_req->req_vbuf;
4885         cmd_vbuf += MPT_RQSL(mpt);
4886         tgt = MPT_TGT_STATE(mpt, cmd_req);
4887
4888         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4889                 if (mpt->outofbeer == 0) {
4890                         mpt->outofbeer = 1;
4891                         xpt_freeze_simq(mpt->sim, 1);
4892                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4893                 }
4894                 if (ccb) {
4895                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4896                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4897                         MPTLOCK_2_CAMLOCK(mpt);
4898                         xpt_done(ccb);
4899                         CAMLOCK_2_MPTLOCK(mpt);
4900                 } else {
4901                         mpt_prt(mpt,
4902                             "could not allocate status request- dropping\n");
4903                 }
4904                 return;
4905         }
4906         req->ccb = ccb;
4907         if (ccb) {
4908                 ccb->ccb_h.ccb_mpt_ptr = mpt;
4909                 ccb->ccb_h.ccb_req_ptr = req;
4910         }
4911
4912         /*
4913          * Record the currently active ccb, if any, and the
4914          * request for it in our target state area.
4915          */
4916         tgt->ccb = ccb;
4917         tgt->req = req;
4918         tgt->state = TGT_STATE_SENDING_STATUS;
4919
4920         tp = req->req_vbuf;
4921         paddr = req->req_pbuf;
4922         paddr += MPT_RQSL(mpt);
4923
4924         memset(tp, 0, sizeof (*tp));
4925         tp->Function = MPI_FUNCTION_TARGET_STATUS_SEND;
4926         if (mpt->is_fc) {
4927                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc =
4928                     (PTR_MPI_TARGET_FCP_CMD_BUFFER) cmd_vbuf;
4929                 uint8_t *sts_vbuf;
4930                 uint32_t *rsp;
4931
4932                 sts_vbuf = req->req_vbuf;
4933                 sts_vbuf += MPT_RQSL(mpt);
4934                 rsp = (uint32_t *) sts_vbuf;
4935                 memcpy(tp->LUN, fc->FcpLun, sizeof (tp->LUN));
4936
4937                 /*
4938                  * The MPI_TARGET_FCP_RSP_BUFFER define is unfortunate.
4939                  * It has to be big-endian in memory and is organized
4940                  * in 32 bit words, which are much easier to deal with
4941                  * as words which are swizzled as needed.
4942                  *
4943                  * All we're filling here is the FC_RSP payload.
4944                  * We may just have the chip synthesize it if
4945                  * we have no residual and an OK status.
4946                  *
4947                  */
4948                 memset(rsp, 0, sizeof (MPI_TARGET_FCP_RSP_BUFFER));
4949
4950                 rsp[2] = status;
4951                 if (tgt->resid) {
4952                         rsp[2] |= 0x800;        /* XXXX NEED MNEMONIC!!!! */
4953                         rsp[3] = htobe32(tgt->resid);
4954 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4955                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4956 #endif
4957                 }
4958                 if (status == SCSI_STATUS_CHECK_COND) {
4959                         int i;
4960
4961                         rsp[2] |= 0x200;        /* XXXX NEED MNEMONIC!!!! */
4962                         rsp[4] = htobe32(MPT_SENSE_SIZE);
4963                         if (sense_data) {
4964                                 memcpy(&rsp[8], sense_data, MPT_SENSE_SIZE);
4965                         } else {
4966                                 mpt_prt(mpt, "mpt_scsi_tgt_status: CHECK CONDI"
4967                                     "TION but no sense data?\n");
4968                                 memset(&rsp, 0, MPT_SENSE_SIZE);
4969                         }
4970                         for (i = 8; i < (8 + (MPT_SENSE_SIZE >> 2)); i++) {
4971                                 rsp[i] = htobe32(rsp[i]);
4972                         }
4973 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4974                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4975 #endif
4976                 }
4977 #ifndef WE_TRUST_AUTO_GOOD_STATUS
4978                 resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4979 #endif
4980                 rsp[2] = htobe32(rsp[2]);
4981         } else if (mpt->is_sas) {
4982                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4983                     (PTR_MPI_TARGET_SSP_CMD_BUFFER) cmd_vbuf;
4984                 memcpy(tp->LUN, ssp->LogicalUnitNumber, sizeof (tp->LUN));
4985         } else {
4986                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4987                     (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) cmd_vbuf;
4988                 tp->StatusCode = status;
4989                 tp->QueueTag = htole16(sp->Tag);
4990                 memcpy(tp->LUN, sp->LogicalUnitNumber, sizeof (tp->LUN));
4991         }
4992
4993         tp->ReplyWord = htole32(tgt->reply_desc);
4994         tp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4995
4996 #ifdef  WE_CAN_USE_AUTO_REPOST
4997         tp->MsgFlags = TARGET_STATUS_SEND_FLAGS_REPOST_CMD_BUFFER;
4998 #endif
4999         if (status == SCSI_STATUS_OK && resplen == 0) {
5000                 tp->MsgFlags |= TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS;
5001         } else {
5002                 tp->StatusDataSGE.u.Address32 = htole32((uint32_t) paddr);
5003                 fl =
5004                         MPI_SGE_FLAGS_HOST_TO_IOC       |
5005                         MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
5006                         MPI_SGE_FLAGS_LAST_ELEMENT      |
5007                         MPI_SGE_FLAGS_END_OF_LIST       |
5008                         MPI_SGE_FLAGS_END_OF_BUFFER;
5009                 fl <<= MPI_SGE_FLAGS_SHIFT;
5010                 fl |= resplen;
5011                 tp->StatusDataSGE.FlagsLength = htole32(fl);
5012         }
5013
5014         mpt_lprt(mpt, MPT_PRT_DEBUG,
5015             "STATUS_CCB %p (wit%s sense) tag %x req %p:%u resid %u\n",
5016             ccb, sense_data?"h" : "hout", ccb? ccb->csio.tag_id : -1, req,
5017             req->serno, tgt->resid);
5018         if (ccb) {
5019                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
5020                 mpt_req_timeout(req, 60 * hz, mpt_timeout, ccb);
5021         }
5022         mpt_send_cmd(mpt, req);
5023 }
5024
5025 static void
5026 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *mpt, request_t *req, mpt_task_mgmt_t fc,
5027     tgt_resource_t *trtp, int init_id)
5028 {
5029         struct ccb_immed_notify *inot;
5030         mpt_tgt_state_t *tgt;
5031
5032         tgt = MPT_TGT_STATE(mpt, req);
5033         inot = (struct ccb_immed_notify *) STAILQ_FIRST(&trtp->inots);
5034         if (inot == NULL) {
5035                 mpt_lprt(mpt, MPT_PRT_WARN, "no INOTSs- sending back BSY\n");
5036                 mpt_scsi_tgt_status(mpt, NULL, req, SCSI_STATUS_BUSY, NULL);
5037                 return;
5038         }
5039         STAILQ_REMOVE_HEAD(&trtp->inots, sim_links.stqe);
5040         mpt_lprt(mpt, MPT_PRT_DEBUG1,
5041             "Get FREE INOT %p lun %d\n", inot, inot->ccb_h.target_lun);
5042
5043         memset(&inot->sense_data, 0, sizeof (inot->sense_data));
5044         inot->sense_len = 0;
5045         memset(inot->message_args, 0, sizeof (inot->message_args));
5046         inot->initiator_id = init_id;   /* XXX */
5047
5048         /*
5049          * This is a somewhat grotesque attempt to map from task management
5050          * to old style SCSI messages. God help us all.
5051          */
5052         switch (fc) {
5053         case MPT_ABORT_TASK_SET:
5054                 inot->message_args[0] = MSG_ABORT_TAG;
5055                 break;
5056         case MPT_CLEAR_TASK_SET:
5057                 inot->message_args[0] = MSG_CLEAR_TASK_SET;
5058                 break;
5059         case MPT_TARGET_RESET:
5060                 inot->message_args[0] = MSG_TARGET_RESET;
5061                 break;
5062         case MPT_CLEAR_ACA:
5063                 inot->message_args[0] = MSG_CLEAR_ACA;
5064                 break;
5065         case MPT_TERMINATE_TASK:
5066                 inot->message_args[0] = MSG_ABORT_TAG;
5067                 break;
5068         default:
5069                 inot->message_args[0] = MSG_NOOP;
5070                 break;
5071         }
5072         tgt->ccb = (union ccb *) inot;
5073         inot->ccb_h.status = CAM_MESSAGE_RECV|CAM_DEV_QFRZN;
5074         MPTLOCK_2_CAMLOCK(mpt);
5075         xpt_done((union ccb *)inot);
5076         CAMLOCK_2_MPTLOCK(mpt);
5077 }
5078
5079 static void
5080 mpt_scsi_tgt_atio(struct mpt_softc *mpt, request_t *req, uint32_t reply_desc)
5081 {
5082         static uint8_t null_iqd[SHORT_INQUIRY_LENGTH] = {
5083             0x7f, 0x00, 0x02, 0x02, 0x20, 0x00, 0x00, 0x32,
5084              'F',  'R',  'E',  'E',  'B',  'S',  'D',  ' ',
5085              'L',  'S',  'I',  '-',  'L',  'O',  'G',  'I',
5086              'C',  ' ',  'N',  'U',  'L',  'D',  'E',  'V',
5087              '0',  '0',  '0',  '1'
5088         };
5089         struct ccb_accept_tio *atiop;
5090         lun_id_t lun;
5091         int tag_action = 0;
5092         mpt_tgt_state_t *tgt;
5093         tgt_resource_t *trtp = NULL;
5094         U8 *lunptr;
5095         U8 *vbuf;
5096         U16 itag;
5097         U16 ioindex;
5098         mpt_task_mgmt_t fct = MPT_NIL_TMT_VALUE;
5099         uint8_t *cdbp;
5100
5101         /*
5102          * Stash info for the current command where we can get at it later.
5103          */
5104         vbuf = req->req_vbuf;
5105         vbuf += MPT_RQSL(mpt);
5106
5107         /*
5108          * Get our state pointer set up.
5109          */
5110         tgt = MPT_TGT_STATE(mpt, req);
5111         if (tgt->state != TGT_STATE_LOADED) {
5112                 mpt_tgt_dump_req_state(mpt, req);
5113                 panic("bad target state in mpt_scsi_tgt_atio");
5114         }
5115         memset(tgt, 0, sizeof (mpt_tgt_state_t));
5116         tgt->state = TGT_STATE_IN_CAM;
5117         tgt->reply_desc = reply_desc;
5118         ioindex = GET_IO_INDEX(reply_desc);
5119         if (mpt->verbose >= MPT_PRT_DEBUG) {
5120                 mpt_dump_data(mpt, "mpt_scsi_tgt_atio response", vbuf,
5121                     max(sizeof (MPI_TARGET_FCP_CMD_BUFFER),
5122                     max(sizeof (MPI_TARGET_SSP_CMD_BUFFER),
5123                     sizeof (MPI_TARGET_SCSI_SPI_CMD_BUFFER))));
5124         }
5125         if (mpt->is_fc) {
5126                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc;
5127                 fc = (PTR_MPI_TARGET_FCP_CMD_BUFFER) vbuf;
5128                 if (fc->FcpCntl[2]) {
5129                         /*
5130                          * Task Management Request
5131                          */
5132                         switch (fc->FcpCntl[2]) {
5133                         case 0x2:
5134                                 fct = MPT_ABORT_TASK_SET;
5135                                 break;
5136                         case 0x4:
5137                                 fct = MPT_CLEAR_TASK_SET;
5138                                 break;
5139                         case 0x20:
5140                                 fct = MPT_TARGET_RESET;
5141                                 break;
5142                         case 0x40:
5143                                 fct = MPT_CLEAR_ACA;
5144                                 break;
5145                         case 0x80:
5146                                 fct = MPT_TERMINATE_TASK;
5147                                 break;
5148                         default:
5149                                 mpt_prt(mpt, "CORRUPTED TASK MGMT BITS: 0x%x\n",
5150                                     fc->FcpCntl[2]);
5151                                 mpt_scsi_tgt_status(mpt, 0, req,
5152                                     SCSI_STATUS_OK, 0);
5153                                 return;
5154                         }
5155                 } else {
5156                         switch (fc->FcpCntl[1]) {
5157                         case 0:
5158                                 tag_action = MSG_SIMPLE_Q_TAG;
5159                                 break;
5160                         case 1:
5161                                 tag_action = MSG_HEAD_OF_Q_TAG;
5162                                 break;
5163                         case 2:
5164                                 tag_action = MSG_ORDERED_Q_TAG;
5165                                 break;
5166                         default:
5167                                 /*
5168                                  * Bah. Ignore Untagged Queing and ACA
5169                                  */
5170                                 tag_action = MSG_SIMPLE_Q_TAG;
5171                                 break;
5172                         }
5173                 }
5174                 tgt->resid = be32toh(fc->FcpDl);
5175                 cdbp = fc->FcpCdb;
5176                 lunptr = fc->FcpLun;
5177                 itag = be16toh(fc->OptionalOxid);
5178         } else if (mpt->is_sas) {
5179                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp;
5180                 ssp = (PTR_MPI_TARGET_SSP_CMD_BUFFER) vbuf;
5181                 cdbp = ssp->CDB;
5182                 lunptr = ssp->LogicalUnitNumber;
5183                 itag = ssp->InitiatorTag;
5184         } else {
5185                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp;
5186                 sp = (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) vbuf;
5187                 cdbp = sp->CDB;
5188                 lunptr = sp->LogicalUnitNumber;
5189                 itag = sp->Tag;
5190         }
5191
5192         /*
5193          * Generate a simple lun
5194          */
5195         switch (lunptr[0] & 0xc0) {
5196         case 0x40:
5197                 lun = ((lunptr[0] & 0x3f) << 8) | lunptr[1];
5198                 break;
5199         case 0:
5200                 lun = lunptr[1];
5201                 break;
5202         default:
5203                 mpt_lprt(mpt, MPT_PRT_ERROR, "cannot handle this type lun\n");
5204                 lun = 0xffff;
5205                 break;
5206         }
5207
5208         /*
5209          * Deal with non-enabled or bad luns here.
5210          */
5211         if (lun >= MPT_MAX_LUNS || mpt->tenabled == 0 ||
5212             mpt->trt[lun].enabled == 0) {
5213                 if (mpt->twildcard) {
5214                         trtp = &mpt->trt_wildcard;
5215                 } else if (fct == MPT_NIL_TMT_VALUE) {
5216                         /*
5217                          * In this case, we haven't got an upstream listener
5218                          * for either a specific lun or wildcard luns. We
5219                          * have to make some sensible response. For regular
5220                          * inquiry, just return some NOT HERE inquiry data.
5221                          * For VPD inquiry, report illegal field in cdb.
5222                          * For REQUEST SENSE, just return NO SENSE data.
5223                          * REPORT LUNS gets illegal command.
5224                          * All other commands get 'no such device'.
5225                          */
5226                         uint8_t *sp, cond, buf[MPT_SENSE_SIZE];
5227                         size_t len;
5228
5229                         memset(buf, 0, MPT_SENSE_SIZE);
5230                         cond = SCSI_STATUS_CHECK_COND;
5231                         buf[0] = 0xf0;
5232                         buf[2] = 0x5;
5233                         buf[7] = 0x8;
5234                         sp = buf;
5235                         tgt->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5236
5237                         switch (cdbp[0]) {
5238                         case INQUIRY:
5239                         {
5240                                 if (cdbp[1] != 0) {
5241                                         buf[12] = 0x26;
5242                                         buf[13] = 0x01;
5243                                         break;
5244                                 }
5245                                 len = min(tgt->resid, cdbp[4]);
5246                                 len = min(len, sizeof (null_iqd));
5247                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5248                                     "local inquiry %ld bytes\n", (long) len);
5249                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5250                                     null_iqd, len);
5251                                 return;
5252                         }
5253                         case REQUEST_SENSE:
5254                         {
5255                                 buf[2] = 0x0;
5256                                 len = min(tgt->resid, cdbp[4]);
5257                                 len = min(len, sizeof (buf));
5258                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5259                                     "local reqsense %ld bytes\n", (long) len);
5260                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5261                                     buf, len);
5262                                 return;
5263                         }
5264                         case REPORT_LUNS:
5265                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "REPORT LUNS\n");
5266                                 buf[12] = 0x26;
5267                                 return;
5268                         default:
5269                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5270                                     "CMD 0x%x to unmanaged lun %u\n",
5271                                     cdbp[0], lun);
5272                                 buf[12] = 0x25;
5273                                 break;
5274                         }
5275                         mpt_scsi_tgt_status(mpt, NULL, req, cond, sp);
5276                         return;
5277                 }
5278                 /* otherwise, leave trtp NULL */
5279         } else {
5280                 trtp = &mpt->trt[lun];
5281         }
5282
5283         /*
5284          * Deal with any task management
5285          */
5286         if (fct != MPT_NIL_TMT_VALUE) {
5287                 if (trtp == NULL) {
5288                         mpt_prt(mpt, "task mgmt function %x but no listener\n",
5289                             fct);
5290                         mpt_scsi_tgt_status(mpt, 0, req,
5291                             SCSI_STATUS_OK, 0);
5292                 } else {
5293                         mpt_scsi_tgt_tsk_mgmt(mpt, req, fct, trtp,
5294                             GET_INITIATOR_INDEX(reply_desc));
5295                 }
5296                 return;
5297         }
5298
5299
5300         atiop = (struct ccb_accept_tio *) STAILQ_FIRST(&trtp->atios);
5301         if (atiop == NULL) {
5302                 mpt_lprt(mpt, MPT_PRT_WARN,
5303                     "no ATIOs for lun %u- sending back %s\n", lun,
5304                     mpt->tenabled? "QUEUE FULL" : "BUSY");
5305                 mpt_scsi_tgt_status(mpt, NULL, req,
5306                     mpt->tenabled? SCSI_STATUS_QUEUE_FULL : SCSI_STATUS_BUSY,
5307                     NULL);
5308                 return;
5309         }
5310         STAILQ_REMOVE_HEAD(&trtp->atios, sim_links.stqe);
5311         mpt_lprt(mpt, MPT_PRT_DEBUG1,
5312             "Get FREE ATIO %p lun %d\n", atiop, atiop->ccb_h.target_lun);
5313         atiop->ccb_h.ccb_mpt_ptr = mpt;
5314         atiop->ccb_h.status = CAM_CDB_RECVD;
5315         atiop->ccb_h.target_lun = lun;
5316         atiop->sense_len = 0;
5317         atiop->init_id = GET_INITIATOR_INDEX(reply_desc);
5318         atiop->cdb_len = mpt_cdblen(cdbp[0], 16);
5319         memcpy(atiop->cdb_io.cdb_bytes, cdbp, atiop->cdb_len);
5320
5321         /*
5322          * The tag we construct here allows us to find the
5323          * original request that the command came in with.
5324          *
5325          * This way we don't have to depend on anything but the
5326          * tag to find things when CCBs show back up from CAM.
5327          */
5328         atiop->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5329         tgt->tag_id = atiop->tag_id;
5330         if (tag_action) {
5331                 atiop->tag_action = tag_action;
5332                 atiop->ccb_h.flags = CAM_TAG_ACTION_VALID;
5333         }
5334         if (mpt->verbose >= MPT_PRT_DEBUG) {
5335                 int i;
5336                 mpt_prt(mpt, "START_CCB %p for lun %u CDB=<", atiop,
5337                     atiop->ccb_h.target_lun);
5338                 for (i = 0; i < atiop->cdb_len; i++) {
5339                         mpt_prtc(mpt, "%02x%c", cdbp[i] & 0xff,
5340                             (i == (atiop->cdb_len - 1))? '>' : ' ');
5341                 }
5342                 mpt_prtc(mpt, " itag %x tag %x rdesc %x dl=%u\n",
5343                     itag, atiop->tag_id, tgt->reply_desc, tgt->resid);
5344         }
5345
5346         MPTLOCK_2_CAMLOCK(mpt);
5347         xpt_done((union ccb *)atiop);
5348         CAMLOCK_2_MPTLOCK(mpt);
5349 }
5350
5351 static void
5352 mpt_tgt_dump_tgt_state(struct mpt_softc *mpt, request_t *req)
5353 {
5354         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5355
5356         mpt_prt(mpt, "req %p:%u tgt:rdesc 0x%x resid %u xfrd %u ccb %p treq %p "
5357             "nx %d tag 0x%08x state=%d\n", req, req->serno, tgt->reply_desc,
5358             tgt->resid, tgt->bytes_xfered, tgt->ccb, tgt->req, tgt->nxfers,
5359             tgt->tag_id, tgt->state);
5360 }
5361
5362 static void
5363 mpt_tgt_dump_req_state(struct mpt_softc *mpt, request_t *req)
5364 {
5365
5366         mpt_prt(mpt, "req %p:%u index %u (%x) state %x\n", req, req->serno,
5367             req->index, req->index, req->state);
5368         mpt_tgt_dump_tgt_state(mpt, req);
5369 }
5370
5371 static int
5372 mpt_scsi_tgt_reply_handler(struct mpt_softc *mpt, request_t *req,
5373     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
5374 {
5375         int dbg;
5376         union ccb *ccb;
5377         U16 status;
5378
5379         if (reply_frame == NULL) {
5380                 /*
5381                  * Figure out what the state of the command is.
5382                  */
5383                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5384
5385 #ifdef  INVARIANTS
5386                 mpt_req_spcl(mpt, req, "turbo scsi_tgt_reply", __LINE__);
5387                 if (tgt->req) {
5388                         mpt_req_not_spcl(mpt, tgt->req,
5389                             "turbo scsi_tgt_reply associated req", __LINE__);
5390                 }
5391 #endif
5392                 switch(tgt->state) {
5393                 case TGT_STATE_LOADED:
5394                         /*
5395                          * This is a new command starting.
5396                          */
5397                         mpt_scsi_tgt_atio(mpt, req, reply_desc);
5398                         break;
5399                 case TGT_STATE_MOVING_DATA:
5400                 {
5401                         uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
5402
5403                         ccb = tgt->ccb;
5404                         if (tgt->req == NULL) {
5405                                 panic("mpt: turbo target reply with null "
5406                                     "associated request moving data");
5407                                 /* NOTREACHED */
5408                         }
5409                         if (ccb == NULL) {
5410                                 if (tgt->is_local == 0) {
5411                                         panic("mpt: turbo target reply with "
5412                                             "null associated ccb moving data");
5413                                         /* NOTREACHED */
5414                                 }
5415                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5416                                     "TARGET_ASSIST local done\n");
5417                                 TAILQ_REMOVE(&mpt->request_pending_list,
5418                                     tgt->req, links);
5419                                 mpt_free_request(mpt, tgt->req);
5420                                 tgt->req = NULL;
5421                                 mpt_scsi_tgt_status(mpt, NULL, req,
5422                                     0, NULL);
5423                                 return (TRUE);
5424                         }
5425                         tgt->ccb = NULL;
5426                         tgt->nxfers++;
5427                         mpt_req_untimeout(req, mpt_timeout, ccb);
5428                         mpt_lprt(mpt, MPT_PRT_DEBUG,
5429                             "TARGET_ASSIST %p (req %p:%u) done tag 0x%x\n",
5430                             ccb, tgt->req, tgt->req->serno, ccb->csio.tag_id);
5431                         /*
5432                          * Free the Target Assist Request
5433                          */
5434                         KASSERT(tgt->req->ccb == ccb,
5435                             ("tgt->req %p:%u tgt->req->ccb %p", tgt->req,
5436                             tgt->req->serno, tgt->req->ccb));
5437                         TAILQ_REMOVE(&mpt->request_pending_list,
5438                             tgt->req, links);
5439                         mpt_free_request(mpt, tgt->req);
5440                         tgt->req = NULL;
5441
5442                         /*
5443                          * Do we need to send status now? That is, are
5444                          * we done with all our data transfers?
5445                          */
5446                         if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
5447                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5448                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5449                                 KASSERT(ccb->ccb_h.status,
5450                                     ("zero ccb sts at %d\n", __LINE__));
5451                                 tgt->state = TGT_STATE_IN_CAM;
5452                                 if (mpt->outofbeer) {
5453                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5454                                         mpt->outofbeer = 0;
5455                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5456                                 }
5457                                 MPTLOCK_2_CAMLOCK(mpt);
5458                                 xpt_done(ccb);
5459                                 CAMLOCK_2_MPTLOCK(mpt);
5460                                 break;
5461                         }
5462                         /*
5463                          * Otherwise, send status (and sense)
5464                          */
5465                         if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5466                                 sp = sense;
5467                                 memcpy(sp, &ccb->csio.sense_data,
5468                                    min(ccb->csio.sense_len, MPT_SENSE_SIZE));
5469                         }
5470                         mpt_scsi_tgt_status(mpt, ccb, req,
5471                             ccb->csio.scsi_status, sp);
5472                         break;
5473                 }
5474                 case TGT_STATE_SENDING_STATUS:
5475                 case TGT_STATE_MOVING_DATA_AND_STATUS:
5476                 {
5477                         int ioindex;
5478                         ccb = tgt->ccb;
5479
5480                         if (tgt->req == NULL) {
5481                                 panic("mpt: turbo target reply with null "
5482                                     "associated request sending status");
5483                                 /* NOTREACHED */
5484                         }
5485
5486                         if (ccb) {
5487                                 tgt->ccb = NULL;
5488                                 if (tgt->state ==
5489                                     TGT_STATE_MOVING_DATA_AND_STATUS) {
5490                                         tgt->nxfers++;
5491                                 }
5492                                 mpt_req_untimeout(req, mpt_timeout, ccb);
5493                                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5494                                         ccb->ccb_h.status |= CAM_SENT_SENSE;
5495                                 }
5496                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5497                                     "TARGET_STATUS tag %x sts %x flgs %x req "
5498                                     "%p\n", ccb->csio.tag_id, ccb->ccb_h.status,
5499                                     ccb->ccb_h.flags, tgt->req);
5500                                 /*
5501                                  * Free the Target Send Status Request
5502                                  */
5503                                 KASSERT(tgt->req->ccb == ccb,
5504                                     ("tgt->req %p:%u tgt->req->ccb %p",
5505                                     tgt->req, tgt->req->serno, tgt->req->ccb));
5506                                 /*
5507                                  * Notify CAM that we're done
5508                                  */
5509                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5510                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5511                                 KASSERT(ccb->ccb_h.status,
5512                                     ("ZERO ccb sts at %d\n", __LINE__));
5513                                 tgt->ccb = NULL;
5514                         } else {
5515                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5516                                     "TARGET_STATUS non-CAM for  req %p:%u\n",
5517                                     tgt->req, tgt->req->serno);
5518                         }
5519                         TAILQ_REMOVE(&mpt->request_pending_list,
5520                             tgt->req, links);
5521                         mpt_free_request(mpt, tgt->req);
5522                         tgt->req = NULL;
5523
5524                         /*
5525                          * And re-post the Command Buffer.
5526                          * This will reset the state.
5527                          */
5528                         ioindex = GET_IO_INDEX(reply_desc);
5529                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5530                         tgt->is_local = 0;
5531                         mpt_post_target_command(mpt, req, ioindex);
5532
5533                         /*
5534                          * And post a done for anyone who cares
5535                          */
5536                         if (ccb) {
5537                                 if (mpt->outofbeer) {
5538                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5539                                         mpt->outofbeer = 0;
5540                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5541                                 }
5542                                 MPTLOCK_2_CAMLOCK(mpt);
5543                                 xpt_done(ccb);
5544                                 CAMLOCK_2_MPTLOCK(mpt);
5545                         }
5546                         break;
5547                 }
5548                 case TGT_STATE_NIL:     /* XXX This Never Happens XXX */
5549                         tgt->state = TGT_STATE_LOADED;
5550                         break;
5551                 default:
5552                         mpt_prt(mpt, "Unknown Target State 0x%x in Context "
5553                             "Reply Function\n", tgt->state);
5554                 }
5555                 return (TRUE);
5556         }
5557
5558         status = le16toh(reply_frame->IOCStatus);
5559         if (status != MPI_IOCSTATUS_SUCCESS) {
5560                 dbg = MPT_PRT_ERROR;
5561         } else {
5562                 dbg = MPT_PRT_DEBUG1;
5563         }
5564
5565         mpt_lprt(mpt, dbg,
5566             "SCSI_TGT REPLY: req=%p:%u reply=%p func=%x IOCstatus 0x%x\n",
5567              req, req->serno, reply_frame, reply_frame->Function, status);
5568
5569         switch (reply_frame->Function) {
5570         case MPI_FUNCTION_TARGET_CMD_BUFFER_POST:
5571         {
5572                 mpt_tgt_state_t *tgt;
5573 #ifdef  INVARIANTS
5574                 mpt_req_spcl(mpt, req, "tgt reply BUFFER POST", __LINE__);
5575 #endif
5576                 if (status != MPI_IOCSTATUS_SUCCESS) {
5577                         /*
5578                          * XXX What to do?
5579                          */
5580                         break;
5581                 }
5582                 tgt = MPT_TGT_STATE(mpt, req);
5583                 KASSERT(tgt->state == TGT_STATE_LOADING,
5584                     ("bad state 0x%x on reply to buffer post\n", tgt->state));
5585                 mpt_assign_serno(mpt, req);
5586                 tgt->state = TGT_STATE_LOADED;
5587                 break;
5588         }
5589         case MPI_FUNCTION_TARGET_ASSIST:
5590 #ifdef  INVARIANTS
5591                 mpt_req_not_spcl(mpt, req, "tgt reply TARGET ASSIST", __LINE__);
5592 #endif
5593                 mpt_prt(mpt, "target assist completion\n");
5594                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5595                 mpt_free_request(mpt, req);
5596                 break;
5597         case MPI_FUNCTION_TARGET_STATUS_SEND:
5598 #ifdef  INVARIANTS
5599                 mpt_req_not_spcl(mpt, req, "tgt reply STATUS SEND", __LINE__);
5600 #endif
5601                 mpt_prt(mpt, "status send completion\n");
5602                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5603                 mpt_free_request(mpt, req);
5604                 break;
5605         case MPI_FUNCTION_TARGET_MODE_ABORT:
5606         {
5607                 PTR_MSG_TARGET_MODE_ABORT_REPLY abtrp =
5608                     (PTR_MSG_TARGET_MODE_ABORT_REPLY) reply_frame;
5609                 PTR_MSG_TARGET_MODE_ABORT abtp =
5610                     (PTR_MSG_TARGET_MODE_ABORT) req->req_vbuf;
5611                 uint32_t cc = GET_IO_INDEX(le32toh(abtp->ReplyWord));
5612 #ifdef  INVARIANTS
5613                 mpt_req_not_spcl(mpt, req, "tgt reply TMODE ABORT", __LINE__);
5614 #endif
5615                 mpt_prt(mpt, "ABORT RX_ID 0x%x Complete; status 0x%x cnt %u\n",
5616                     cc, le16toh(abtrp->IOCStatus), le32toh(abtrp->AbortCount));
5617                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5618                 mpt_free_request(mpt, req);
5619                 break;
5620         }
5621         default:
5622                 mpt_prt(mpt, "Unknown Target Address Reply Function code: "
5623                     "0x%x\n", reply_frame->Function);
5624                 break;
5625         }
5626         return (TRUE);
5627 }