sys/dev/mpt/mpt_cam.c

   1 /*-
   2  * FreeBSD/CAM specific routines for LSI '909 FC  adapters.
   3  * FreeBSD Version.
   4  *
   5  * Copyright (c)  2000, 2001 by Greg Ansley
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice immediately at the beginning of the file, without modification,
  12  *    this list of conditions, and the following disclaimer.
  13  * 2. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28 /*-
  29  * Copyright (c) 2002, 2006 by Matthew Jacob
  30  * All rights reserved.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions are
  34  * met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  38  *    substantially similar to the "NO WARRANTY" disclaimer below
  39  *    ("Disclaimer") and any redistribution must be conditioned upon including
  40  *    a substantially similar Disclaimer requirement for further binary
  41  *    redistribution.
  42  * 3. Neither the names of the above listed copyright holders nor the names
  43  *    of any contributors may be used to endorse or promote products derived
  44  *    from this software without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  47  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  49  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  50  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  51  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  52  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  53  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  54  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  55  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
  56  * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  57  *
  58  * Support from Chris Ellsworth in order to make SAS adapters work
  59  * is gratefully acknowledged.
  60  *
  61  * Support from LSI-Logic has also gone a great deal toward making this a
  62  * workable subsystem and is gratefully acknowledged.
  63  */
  64 /*-
  65  * Copyright (c) 2004, Avid Technology, Inc. and its contributors.
  66  * Copyright (c) 2005, WHEEL Sp. z o.o.
  67  * Copyright (c) 2004, 2005 Justin T. Gibbs
  68  * All rights reserved.
  69  *
  70  * Redistribution and use in source and binary forms, with or without
  71  * modification, are permitted provided that the following conditions are
  72  * met:
  73  * 1. Redistributions of source code must retain the above copyright
  74  *    notice, this list of conditions and the following disclaimer.
  75  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  76  *    substantially similar to the "NO WARRANTY" disclaimer below
  77  *    ("Disclaimer") and any redistribution must be conditioned upon including
  78  *    a substantially similar Disclaimer requirement for further binary
  79  *    redistribution.
  80  * 3. Neither the names of the above listed copyright holders nor the names
  81  *    of any contributors may be used to endorse or promote products derived
  82  *    from this software without specific prior written permission.
  83  *
  84  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  85  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  86  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  87  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  88  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  89  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  90  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  91  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  92  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  93  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
  94  * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  95  */
  96 #include <sys/cdefs.h>
  97 __FBSDID("$FreeBSD$");
  98
  99 #include <dev/mpt/mpt.h>
 100 #include <dev/mpt/mpt_cam.h>
 101 #include <dev/mpt/mpt_raid.h>
 102
 103 #include "dev/mpt/mpilib/mpi_ioc.h" /* XXX Fix Event Handling!!! */
 104 #include "dev/mpt/mpilib/mpi_init.h"
 105 #include "dev/mpt/mpilib/mpi_targ.h"
 106 #include "dev/mpt/mpilib/mpi_fc.h"
 107 #include "dev/mpt/mpilib/mpi_sas.h"
 108 #if __FreeBSD_version >= 500000
 109 #include <sys/sysctl.h>
 110 #endif
 111 #include <sys/callout.h>
 112 #include <sys/kthread.h>
 113
 114 #if __FreeBSD_version >= 700025
 115 #ifndef CAM_NEW_TRAN_CODE
 116 #define CAM_NEW_TRAN_CODE       1
 117 #endif
 118 #endif
 119
 120 static void mpt_poll(struct cam_sim *);
 121 static timeout_t mpt_timeout;
 122 static void mpt_action(struct cam_sim *, union ccb *);
 123 static int
 124 mpt_get_spi_settings(struct mpt_softc *, struct ccb_trans_settings *);
 125 static void mpt_setwidth(struct mpt_softc *, int, int);
 126 static void mpt_setsync(struct mpt_softc *, int, int, int);
 127 static int mpt_update_spi_config(struct mpt_softc *, int);
 128 static void mpt_calc_geometry(struct ccb_calc_geometry *ccg, int extended);
 129
 130 static mpt_reply_handler_t mpt_scsi_reply_handler;
 131 static mpt_reply_handler_t mpt_scsi_tmf_reply_handler;
 132 static mpt_reply_handler_t mpt_fc_els_reply_handler;
 133 static int mpt_scsi_reply_frame_handler(struct mpt_softc *, request_t *,
 134                                         MSG_DEFAULT_REPLY *);
 135 static int mpt_bus_reset(struct mpt_softc *, target_id_t, lun_id_t, int);
 136 static int mpt_fc_reset_link(struct mpt_softc *, int);
 137
 138 static int mpt_spawn_recovery_thread(struct mpt_softc *mpt);
 139 static void mpt_terminate_recovery_thread(struct mpt_softc *mpt);
 140 static void mpt_recovery_thread(void *arg);
 141 static void mpt_recover_commands(struct mpt_softc *mpt);
 142
 143 static int mpt_scsi_send_tmf(struct mpt_softc *, u_int, u_int, u_int,
 144     u_int, u_int, u_int, int);
 145
 146 static void mpt_fc_post_els(struct mpt_softc *mpt, request_t *, int);
 147 static void mpt_post_target_command(struct mpt_softc *, request_t *, int);
 148 static int mpt_add_els_buffers(struct mpt_softc *mpt);
 149 static int mpt_add_target_commands(struct mpt_softc *mpt);
 150 static int mpt_enable_lun(struct mpt_softc *, target_id_t, lun_id_t);
 151 static int mpt_disable_lun(struct mpt_softc *, target_id_t, lun_id_t);
 152 static void mpt_target_start_io(struct mpt_softc *, union ccb *);
 153 static cam_status mpt_abort_target_ccb(struct mpt_softc *, union ccb *);
 154 static int mpt_abort_target_cmd(struct mpt_softc *, request_t *);
 155 static void mpt_scsi_tgt_status(struct mpt_softc *, union ccb *, request_t *,
 156     uint8_t, uint8_t const *);
 157 static void
 158 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *, request_t *, mpt_task_mgmt_t,
 159     tgt_resource_t *, int);
 160 static void mpt_tgt_dump_tgt_state(struct mpt_softc *, request_t *);
 161 static void mpt_tgt_dump_req_state(struct mpt_softc *, request_t *);
 162 static mpt_reply_handler_t mpt_scsi_tgt_reply_handler;
 163 static mpt_reply_handler_t mpt_sata_pass_reply_handler;
 164
 165 static uint32_t scsi_io_handler_id = MPT_HANDLER_ID_NONE;
 166 static uint32_t scsi_tmf_handler_id = MPT_HANDLER_ID_NONE;
 167 static uint32_t fc_els_handler_id = MPT_HANDLER_ID_NONE;
 168 static uint32_t sata_pass_handler_id = MPT_HANDLER_ID_NONE;
 169
 170 static mpt_probe_handler_t      mpt_cam_probe;
 171 static mpt_attach_handler_t     mpt_cam_attach;
 172 static mpt_enable_handler_t     mpt_cam_enable;
 173 static mpt_ready_handler_t      mpt_cam_ready;
 174 static mpt_event_handler_t      mpt_cam_event;
 175 static mpt_reset_handler_t      mpt_cam_ioc_reset;
 176 static mpt_detach_handler_t     mpt_cam_detach;
 177
 178 static struct mpt_personality mpt_cam_personality =
 179 {
 180         .name           = "mpt_cam",
 181         .probe          = mpt_cam_probe,
 182         .attach         = mpt_cam_attach,
 183         .enable         = mpt_cam_enable,
 184         .ready          = mpt_cam_ready,
 185         .event          = mpt_cam_event,
 186         .reset          = mpt_cam_ioc_reset,
 187         .detach         = mpt_cam_detach,
 188 };
 189
 190 DECLARE_MPT_PERSONALITY(mpt_cam, SI_ORDER_SECOND);
 191 MODULE_DEPEND(mpt_cam, cam, 1, 1, 1);
 192
 193 int mpt_enable_sata_wc = -1;
 194 TUNABLE_INT("hw.mpt.enable_sata_wc", &mpt_enable_sata_wc);
 195
 196 int
 197 mpt_cam_probe(struct mpt_softc *mpt)
 198 {
 199         int role;
 200
 201         /*
 202          * Only attach to nodes that support the initiator or target role
 203          * (or want to) or have RAID physical devices that need CAM pass-thru
 204          * support.
 205          */
 206         if (mpt->do_cfg_role) {
 207                 role = mpt->cfg_role;
 208         } else {
 209                 role = mpt->role;
 210         }
 211         if ((role & (MPT_ROLE_TARGET|MPT_ROLE_INITIATOR)) != 0 ||
 212             (mpt->ioc_page2 != NULL && mpt->ioc_page2->MaxPhysDisks != 0)) {
 213                 return (0);
 214         }
 215         return (ENODEV);
 216 }
 217
 218 int
 219 mpt_cam_attach(struct mpt_softc *mpt)
 220 {
 221         struct cam_devq *devq;
 222         mpt_handler_t    handler;
 223         int              maxq;
 224         int              error;
 225
 226         MPT_LOCK(mpt);
 227         TAILQ_INIT(&mpt->request_timeout_list);
 228         maxq = (mpt->ioc_facts.GlobalCredits < MPT_MAX_REQUESTS(mpt))?
 229             mpt->ioc_facts.GlobalCredits : MPT_MAX_REQUESTS(mpt);
 230
 231         handler.reply_handler = mpt_scsi_reply_handler;
 232         error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 233                                      &scsi_io_handler_id);
 234         if (error != 0) {
 235                 MPT_UNLOCK(mpt);
 236                 goto cleanup;
 237         }
 238
 239         handler.reply_handler = mpt_scsi_tmf_reply_handler;
 240         error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 241                                      &scsi_tmf_handler_id);
 242         if (error != 0) {
 243                 MPT_UNLOCK(mpt);
 244                 goto cleanup;
 245         }
 246
 247         /*
 248          * If we're fibre channel and could support target mode, we register
 249          * an ELS reply handler and give it resources.
 250          */
 251         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET) != 0) {
 252                 handler.reply_handler = mpt_fc_els_reply_handler;
 253                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 254                     &fc_els_handler_id);
 255                 if (error != 0) {
 256                         MPT_UNLOCK(mpt);
 257                         goto cleanup;
 258                 }
 259                 if (mpt_add_els_buffers(mpt) == FALSE) {
 260                         error = ENOMEM;
 261                         MPT_UNLOCK(mpt);
 262                         goto cleanup;
 263                 }
 264                 maxq -= mpt->els_cmds_allocated;
 265         }
 266
 267         /*
 268          * If we support target mode, we register a reply handler for it,
 269          * but don't add command resources until we actually enable target
 270          * mode.
 271          */
 272         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET) != 0) {
 273                 handler.reply_handler = mpt_scsi_tgt_reply_handler;
 274                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 275                     &mpt->scsi_tgt_handler_id);
 276                 if (error != 0) {
 277                         MPT_UNLOCK(mpt);
 278                         goto cleanup;
 279                 }
 280         }
 281
 282         if (mpt->is_sas) {
 283                 handler.reply_handler = mpt_sata_pass_reply_handler;
 284                 error = mpt_register_handler(mpt, MPT_HANDLER_REPLY, handler,
 285                     &sata_pass_handler_id);
 286                 if (error != 0) {
 287                         MPT_UNLOCK(mpt);
 288                         goto cleanup;
 289                 }
 290         }
 291
 292         /*
 293          * We keep one request reserved for timeout TMF requests.
 294          */
 295         mpt->tmf_req = mpt_get_request(mpt, FALSE);
 296         if (mpt->tmf_req == NULL) {
 297                 mpt_prt(mpt, "Unable to allocate dedicated TMF request!\n");
 298                 error = ENOMEM;
 299                 MPT_UNLOCK(mpt);
 300                 goto cleanup;
 301         }
 302
 303         /*
 304          * Mark the request as free even though not on the free list.
 305          * There is only one TMF request allowed to be outstanding at
 306          * a time and the TMF routines perform their own allocation
 307          * tracking using the standard state flags.
 308          */
 309         mpt->tmf_req->state = REQ_STATE_FREE;
 310         maxq--;
 311
 312         /*
 313          * The rest of this is CAM foo, for which we need to drop our lock
 314          */
 315         MPT_UNLOCK(mpt);
 316
 317         if (mpt_spawn_recovery_thread(mpt) != 0) {
 318                 mpt_prt(mpt, "Unable to spawn recovery thread!\n");
 319                 error = ENOMEM;
 320                 goto cleanup;
 321         }
 322
 323         /*
 324          * Create the device queue for our SIM(s).
 325          */
 326         devq = cam_simq_alloc(maxq);
 327         if (devq == NULL) {
 328                 mpt_prt(mpt, "Unable to allocate CAM SIMQ!\n");
 329                 error = ENOMEM;
 330                 goto cleanup;
 331         }
 332
 333         /*
 334          * Construct our SIM entry.
 335          */
 336         mpt->sim =
 337             mpt_sim_alloc(mpt_action, mpt_poll, "mpt", mpt, 1, maxq, devq);
 338         if (mpt->sim == NULL) {
 339                 mpt_prt(mpt, "Unable to allocate CAM SIM!\n");
 340                 cam_simq_free(devq);
 341                 error = ENOMEM;
 342                 goto cleanup;
 343         }
 344
 345         /*
 346          * Register exactly this bus.
 347          */
 348         MPT_LOCK(mpt);
 349         if (mpt_xpt_bus_register(mpt->sim, mpt->dev, 0) != CAM_SUCCESS) {
 350                 mpt_prt(mpt, "Bus registration Failed!\n");
 351                 error = ENOMEM;
 352                 MPT_UNLOCK(mpt);
 353                 goto cleanup;
 354         }
 355
 356         if (xpt_create_path(&mpt->path, NULL, cam_sim_path(mpt->sim),
 357             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 358                 mpt_prt(mpt, "Unable to allocate Path!\n");
 359                 error = ENOMEM;
 360                 MPT_UNLOCK(mpt);
 361                 goto cleanup;
 362         }
 363         MPT_UNLOCK(mpt);
 364
 365         /*
 366          * Only register a second bus for RAID physical
 367          * devices if the controller supports RAID.
 368          */
 369         if (mpt->ioc_page2 == NULL || mpt->ioc_page2->MaxPhysDisks == 0) {
 370                 return (0);
 371         }
 372
 373         /*
 374          * Create a "bus" to export all hidden disks to CAM.
 375          */
 376         mpt->phydisk_sim =
 377             mpt_sim_alloc(mpt_action, mpt_poll, "mpt", mpt, 1, maxq, devq);
 378         if (mpt->phydisk_sim == NULL) {
 379                 mpt_prt(mpt, "Unable to allocate Physical Disk CAM SIM!\n");
 380                 error = ENOMEM;
 381                 goto cleanup;
 382         }
 383
 384         /*
 385          * Register this bus.
 386          */
 387         MPT_LOCK(mpt);
 388         if (mpt_xpt_bus_register(mpt->phydisk_sim, mpt->dev, 1) !=
 389             CAM_SUCCESS) {
 390                 mpt_prt(mpt, "Physical Disk Bus registration Failed!\n");
 391                 error = ENOMEM;
 392                 MPT_UNLOCK(mpt);
 393                 goto cleanup;
 394         }
 395
 396         if (xpt_create_path(&mpt->phydisk_path, NULL,
 397             cam_sim_path(mpt->phydisk_sim),
 398             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 399                 mpt_prt(mpt, "Unable to allocate Physical Disk Path!\n");
 400                 error = ENOMEM;
 401                 MPT_UNLOCK(mpt);
 402                 goto cleanup;
 403         }
 404         MPT_UNLOCK(mpt);
 405         mpt_lprt(mpt, MPT_PRT_DEBUG, "attached cam\n");
 406         return (0);
 407
 408 cleanup:
 409         mpt_cam_detach(mpt);
 410         return (error);
 411 }
 412
 413 /*
 414  * Read FC configuration information
 415  */
 416 static int
 417 mpt_read_config_info_fc(struct mpt_softc *mpt)
 418 {
 419         char *topology = NULL;
 420         int rv;
 421
 422         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_FC_PORT, 0,
 423             0, &mpt->mpt_fcport_page0.Header, FALSE, 5000);
 424         if (rv) {
 425                 return (-1);
 426         }
 427         mpt_lprt(mpt, MPT_PRT_DEBUG, "FC Port Page 0 Header: %x %x %x %x\n",
 428                  mpt->mpt_fcport_page0.Header.PageVersion,
 429                  mpt->mpt_fcport_page0.Header.PageLength,
 430                  mpt->mpt_fcport_page0.Header.PageNumber,
 431                  mpt->mpt_fcport_page0.Header.PageType);
 432
 433
 434         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_fcport_page0.Header,
 435             sizeof(mpt->mpt_fcport_page0), FALSE, 5000);
 436         if (rv) {
 437                 mpt_prt(mpt, "failed to read FC Port Page 0\n");
 438                 return (-1);
 439         }
 440         mpt2host_config_page_fc_port_0(&mpt->mpt_fcport_page0);
 441
 442         mpt->mpt_fcport_speed = mpt->mpt_fcport_page0.CurrentSpeed;
 443
 444         switch (mpt->mpt_fcport_page0.Flags &
 445             MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) {
 446         case MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT:
 447                 mpt->mpt_fcport_speed = 0;
 448                 topology = "<NO LOOP>";
 449                 break;
 450         case MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT:
 451                 topology = "N-Port";
 452                 break;
 453         case MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP:
 454                 topology = "NL-Port";
 455                 break;
 456         case MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT:
 457                 topology = "F-Port";
 458                 break;
 459         case MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP:
 460                 topology = "FL-Port";
 461                 break;
 462         default:
 463                 mpt->mpt_fcport_speed = 0;
 464                 topology = "?";
 465                 break;
 466         }
 467
 468         mpt_lprt(mpt, MPT_PRT_INFO,
 469             "FC Port Page 0: Topology <%s> WWNN 0x%08x%08x WWPN 0x%08x%08x "
 470             "Speed %u-Gbit\n", topology,
 471             mpt->mpt_fcport_page0.WWNN.High,
 472             mpt->mpt_fcport_page0.WWNN.Low,
 473             mpt->mpt_fcport_page0.WWPN.High,
 474             mpt->mpt_fcport_page0.WWPN.Low,
 475             mpt->mpt_fcport_speed);
 476 #if __FreeBSD_version >= 500000
 477         MPT_UNLOCK(mpt);
 478         {
 479                 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(mpt->dev);
 480                 struct sysctl_oid *tree = device_get_sysctl_tree(mpt->dev);
 481
 482                 snprintf(mpt->scinfo.fc.wwnn,
 483                     sizeof (mpt->scinfo.fc.wwnn), "0x%08x%08x",
 484                     mpt->mpt_fcport_page0.WWNN.High,
 485                     mpt->mpt_fcport_page0.WWNN.Low);
 486
 487                 snprintf(mpt->scinfo.fc.wwpn,
 488                     sizeof (mpt->scinfo.fc.wwpn), "0x%08x%08x",
 489                     mpt->mpt_fcport_page0.WWPN.High,
 490                     mpt->mpt_fcport_page0.WWPN.Low);
 491
 492                 SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
 493                        "wwnn", CTLFLAG_RD, mpt->scinfo.fc.wwnn, 0,
 494                        "World Wide Node Name");
 495
 496                 SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
 497                        "wwpn", CTLFLAG_RD, mpt->scinfo.fc.wwpn, 0,
 498                        "World Wide Port Name");
 499
 500         }
 501         MPT_LOCK(mpt);
 502 #endif
 503         return (0);
 504 }
 505
 506 /*
 507  * Set FC configuration information.
 508  */
 509 static int
 510 mpt_set_initial_config_fc(struct mpt_softc *mpt)
 511 {
 512
 513         CONFIG_PAGE_FC_PORT_1 fc;
 514         U32 fl;
 515         int r, doit = 0;
 516         int role;
 517
 518         r = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_FC_PORT, 1, 0,
 519             &fc.Header, FALSE, 5000);
 520         if (r) {
 521                 mpt_prt(mpt, "failed to read FC page 1 header\n");
 522                 return (mpt_fc_reset_link(mpt, 1));
 523         }
 524
 525         r = mpt_read_cfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_NVRAM, 0,
 526             &fc.Header, sizeof (fc), FALSE, 5000);
 527         if (r) {
 528                 mpt_prt(mpt, "failed to read FC page 1\n");
 529                 return (mpt_fc_reset_link(mpt, 1));
 530         }
 531         mpt2host_config_page_fc_port_1(&fc);
 532
 533         /*
 534          * Check our flags to make sure we support the role we want.
 535          */
 536         doit = 0;
 537         role = 0;
 538         fl = fc.Flags;
 539
 540         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_INIT) {
 541                 role |= MPT_ROLE_INITIATOR;
 542         }
 543         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG) {
 544                 role |= MPT_ROLE_TARGET;
 545         }
 546
 547         fl &= ~MPI_FCPORTPAGE1_FLAGS_PROT_MASK;
 548
 549         if (mpt->do_cfg_role == 0) {
 550                 role = mpt->cfg_role;
 551         } else {
 552                 mpt->do_cfg_role = 0;
 553         }
 554
 555         if (role != mpt->cfg_role) {
 556                 if (mpt->cfg_role & MPT_ROLE_INITIATOR) {
 557                         if ((role & MPT_ROLE_INITIATOR) == 0) {
 558                                 mpt_prt(mpt, "adding initiator role\n");
 559                                 fl |= MPI_FCPORTPAGE1_FLAGS_PROT_FCP_INIT;
 560                                 doit++;
 561                         } else {
 562                                 mpt_prt(mpt, "keeping initiator role\n");
 563                         }
 564                 } else if (role & MPT_ROLE_INITIATOR) {
 565                         mpt_prt(mpt, "removing initiator role\n");
 566                         doit++;
 567                 }
 568                 if (mpt->cfg_role & MPT_ROLE_TARGET) {
 569                         if ((role & MPT_ROLE_TARGET) == 0) {
 570                                 mpt_prt(mpt, "adding target role\n");
 571                                 fl |= MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG;
 572                                 doit++;
 573                         } else {
 574                                 mpt_prt(mpt, "keeping target role\n");
 575                         }
 576                 } else if (role & MPT_ROLE_TARGET) {
 577                         mpt_prt(mpt, "removing target role\n");
 578                         doit++;
 579                 }
 580                 mpt->role = mpt->cfg_role;
 581         }
 582
 583         if (fl & MPI_FCPORTPAGE1_FLAGS_PROT_FCP_TARG) {
 584                 if ((fl & MPI_FCPORTPAGE1_FLAGS_TARGET_MODE_OXID) == 0) {
 585                         mpt_prt(mpt, "adding OXID option\n");
 586                         fl |= MPI_FCPORTPAGE1_FLAGS_TARGET_MODE_OXID;
 587                         doit++;
 588                 }
 589         }
 590
 591         if (doit) {
 592                 fc.Flags = fl;
 593                 host2mpt_config_page_fc_port_1(&fc);
 594                 r = mpt_write_cfg_page(mpt,
 595                     MPI_CONFIG_ACTION_PAGE_WRITE_NVRAM, 0, &fc.Header,
 596                     sizeof(fc), FALSE, 5000);
 597                 if (r != 0) {
 598                         mpt_prt(mpt, "failed to update NVRAM with changes\n");
 599                         return (0);
 600                 }
 601                 mpt_prt(mpt, "NOTE: NVRAM changes will not take "
 602                     "effect until next reboot or IOC reset\n");
 603         }
 604         return (0);
 605 }
 606
 607 static int
 608 mptsas_sas_io_unit_pg0(struct mpt_softc *mpt, struct mptsas_portinfo *portinfo)
 609 {
 610         ConfigExtendedPageHeader_t hdr;
 611         struct mptsas_phyinfo *phyinfo;
 612         SasIOUnitPage0_t *buffer;
 613         int error, len, i;
 614
 615         error = mpt_read_extcfg_header(mpt, MPI_SASIOUNITPAGE0_PAGEVERSION,
 616                                        0, 0, MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT,
 617                                        &hdr, 0, 10000);
 618         if (error)
 619                 goto out;
 620         if (hdr.ExtPageLength == 0) {
 621                 error = ENXIO;
 622                 goto out;
 623         }
 624
 625         len = hdr.ExtPageLength * 4;
 626         buffer = malloc(len, M_DEVBUF, M_NOWAIT|M_ZERO);
 627         if (buffer == NULL) {
 628                 error = ENOMEM;
 629                 goto out;
 630         }
 631
 632         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 633                                      0, &hdr, buffer, len, 0, 10000);
 634         if (error) {
 635                 free(buffer, M_DEVBUF);
 636                 goto out;
 637         }
 638
 639         portinfo->num_phys = buffer->NumPhys;
 640         portinfo->phy_info = malloc(sizeof(*portinfo->phy_info) *
 641             portinfo->num_phys, M_DEVBUF, M_NOWAIT|M_ZERO);
 642         if (portinfo->phy_info == NULL) {
 643                 free(buffer, M_DEVBUF);
 644                 error = ENOMEM;
 645                 goto out;
 646         }
 647
 648         for (i = 0; i < portinfo->num_phys; i++) {
 649                 phyinfo = &portinfo->phy_info[i];
 650                 phyinfo->phy_num = i;
 651                 phyinfo->port_id = buffer->PhyData[i].Port;
 652                 phyinfo->negotiated_link_rate =
 653                     buffer->PhyData[i].NegotiatedLinkRate;
 654                 phyinfo->handle =
 655                     le16toh(buffer->PhyData[i].ControllerDevHandle);
 656         }
 657
 658         free(buffer, M_DEVBUF);
 659 out:
 660         return (error);
 661 }
 662
 663 static int
 664 mptsas_sas_phy_pg0(struct mpt_softc *mpt, struct mptsas_phyinfo *phy_info,
 665         uint32_t form, uint32_t form_specific)
 666 {
 667         ConfigExtendedPageHeader_t hdr;
 668         SasPhyPage0_t *buffer;
 669         int error;
 670
 671         error = mpt_read_extcfg_header(mpt, MPI_SASPHY0_PAGEVERSION, 0, 0,
 672                                        MPI_CONFIG_EXTPAGETYPE_SAS_PHY, &hdr,
 673                                        0, 10000);
 674         if (error)
 675                 goto out;
 676         if (hdr.ExtPageLength == 0) {
 677                 error = ENXIO;
 678                 goto out;
 679         }
 680
 681         buffer = malloc(sizeof(SasPhyPage0_t), M_DEVBUF, M_NOWAIT|M_ZERO);
 682         if (buffer == NULL) {
 683                 error = ENOMEM;
 684                 goto out;
 685         }
 686
 687         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 688                                      form + form_specific, &hdr, buffer,
 689                                      sizeof(SasPhyPage0_t), 0, 10000);
 690         if (error) {
 691                 free(buffer, M_DEVBUF);
 692                 goto out;
 693         }
 694
 695         phy_info->hw_link_rate = buffer->HwLinkRate;
 696         phy_info->programmed_link_rate = buffer->ProgrammedLinkRate;
 697         phy_info->identify.dev_handle = le16toh(buffer->OwnerDevHandle);
 698         phy_info->attached.dev_handle = le16toh(buffer->AttachedDevHandle);
 699
 700         free(buffer, M_DEVBUF);
 701 out:
 702         return (error);
 703 }
 704
 705 static int
 706 mptsas_sas_device_pg0(struct mpt_softc *mpt, struct mptsas_devinfo *device_info,
 707         uint32_t form, uint32_t form_specific)
 708 {
 709         ConfigExtendedPageHeader_t hdr;
 710         SasDevicePage0_t *buffer;
 711         uint64_t sas_address;
 712         int error = 0;
 713
 714         bzero(device_info, sizeof(*device_info));
 715         error = mpt_read_extcfg_header(mpt, MPI_SASDEVICE0_PAGEVERSION, 0, 0,
 716                                        MPI_CONFIG_EXTPAGETYPE_SAS_DEVICE,
 717                                        &hdr, 0, 10000);
 718         if (error)
 719                 goto out;
 720         if (hdr.ExtPageLength == 0) {
 721                 error = ENXIO;
 722                 goto out;
 723         }
 724
 725         buffer = malloc(sizeof(SasDevicePage0_t), M_DEVBUF, M_NOWAIT|M_ZERO);
 726         if (buffer == NULL) {
 727                 error = ENOMEM;
 728                 goto out;
 729         }
 730
 731         error = mpt_read_extcfg_page(mpt, MPI_CONFIG_ACTION_PAGE_READ_CURRENT,
 732                                      form + form_specific, &hdr, buffer,
 733                                      sizeof(SasDevicePage0_t), 0, 10000);
 734         if (error) {
 735                 free(buffer, M_DEVBUF);
 736                 goto out;
 737         }
 738
 739         device_info->dev_handle = le16toh(buffer->DevHandle);
 740         device_info->parent_dev_handle = le16toh(buffer->ParentDevHandle);
 741         device_info->enclosure_handle = le16toh(buffer->EnclosureHandle);
 742         device_info->slot = le16toh(buffer->Slot);
 743         device_info->phy_num = buffer->PhyNum;
 744         device_info->physical_port = buffer->PhysicalPort;
 745         device_info->target_id = buffer->TargetID;
 746         device_info->bus = buffer->Bus;
 747         bcopy(&buffer->SASAddress, &sas_address, sizeof(uint64_t));
 748         device_info->sas_address = le64toh(sas_address);
 749         device_info->device_info = le32toh(buffer->DeviceInfo);
 750
 751         free(buffer, M_DEVBUF);
 752 out:
 753         return (error);
 754 }
 755
 756 /*
 757  * Read SAS configuration information. Nothing to do yet.
 758  */
 759 static int
 760 mpt_read_config_info_sas(struct mpt_softc *mpt)
 761 {
 762         struct mptsas_portinfo *portinfo;
 763         struct mptsas_phyinfo *phyinfo;
 764         int error, i;
 765
 766         portinfo = malloc(sizeof(*portinfo), M_DEVBUF, M_NOWAIT|M_ZERO);
 767         if (portinfo == NULL)
 768                 return (ENOMEM);
 769
 770         error = mptsas_sas_io_unit_pg0(mpt, portinfo);
 771         if (error) {
 772                 free(portinfo, M_DEVBUF);
 773                 return (0);
 774         }
 775
 776         for (i = 0; i < portinfo->num_phys; i++) {
 777                 phyinfo = &portinfo->phy_info[i];
 778                 error = mptsas_sas_phy_pg0(mpt, phyinfo,
 779                     (MPI_SAS_PHY_PGAD_FORM_PHY_NUMBER <<
 780                     MPI_SAS_PHY_PGAD_FORM_SHIFT), i);
 781                 if (error)
 782                         break;
 783                 error = mptsas_sas_device_pg0(mpt, &phyinfo->identify,
 784                     (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
 785                     MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
 786                     phyinfo->handle);
 787                 if (error)
 788                         break;
 789                 phyinfo->identify.phy_num = phyinfo->phy_num = i;
 790                 if (phyinfo->attached.dev_handle)
 791                         error = mptsas_sas_device_pg0(mpt,
 792                             &phyinfo->attached,
 793                             (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
 794                             MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
 795                             phyinfo->attached.dev_handle);
 796                 if (error)
 797                         break;
 798         }
 799         mpt->sas_portinfo = portinfo;
 800         return (0);
 801 }
 802
 803 static void
 804 mptsas_set_sata_wc(struct mpt_softc *mpt, struct mptsas_devinfo *devinfo,
 805         int enabled)
 806 {
 807         SataPassthroughRequest_t        *pass;
 808         request_t *req;
 809         int error, status;
 810
 811         req = mpt_get_request(mpt, 0);
 812         if (req == NULL)
 813                 return;
 814
 815         pass = req->req_vbuf;
 816         bzero(pass, sizeof(SataPassthroughRequest_t));
 817         pass->Function = MPI_FUNCTION_SATA_PASSTHROUGH;
 818         pass->TargetID = devinfo->target_id;
 819         pass->Bus = devinfo->bus;
 820         pass->PassthroughFlags = 0;
 821         pass->ConnectionRate = MPI_SATA_PT_REQ_CONNECT_RATE_NEGOTIATED;
 822         pass->DataLength = 0;
 823         pass->MsgContext = htole32(req->index | sata_pass_handler_id);
 824         pass->CommandFIS[0] = 0x27;
 825         pass->CommandFIS[1] = 0x80;
 826         pass->CommandFIS[2] = 0xef;
 827         pass->CommandFIS[3] = (enabled) ? 0x02 : 0x82;
 828         pass->CommandFIS[7] = 0x40;
 829         pass->CommandFIS[15] = 0x08;
 830
 831         mpt_check_doorbell(mpt);
 832         mpt_send_cmd(mpt, req);
 833         error = mpt_wait_req(mpt, req, REQ_STATE_DONE, REQ_STATE_DONE, 0,
 834                              10 * 1000);
 835         if (error) {
 836                 mpt_free_request(mpt, req);
 837                 printf("error %d sending passthrough\n", error);
 838                 return;
 839         }
 840
 841         status = le16toh(req->IOCStatus);
 842         if (status != MPI_IOCSTATUS_SUCCESS) {
 843                 mpt_free_request(mpt, req);
 844                 printf("IOCSTATUS %d\n", status);
 845                 return;
 846         }
 847
 848         mpt_free_request(mpt, req);
 849 }
 850
 851 /*
 852  * Set SAS configuration information. Nothing to do yet.
 853  */
 854 static int
 855 mpt_set_initial_config_sas(struct mpt_softc *mpt)
 856 {
 857         struct mptsas_phyinfo *phyinfo;
 858         int i;
 859
 860         if ((mpt_enable_sata_wc != -1) && (mpt->sas_portinfo != NULL)) {
 861                 for (i = 0; i < mpt->sas_portinfo->num_phys; i++) {
 862                         phyinfo = &mpt->sas_portinfo->phy_info[i];
 863                         if (phyinfo->attached.dev_handle == 0)
 864                                 continue;
 865                         if ((phyinfo->attached.device_info &
 866                             MPI_SAS_DEVICE_INFO_SATA_DEVICE) == 0)
 867                                 continue;
 868                         if (bootverbose)
 869                                 device_printf(mpt->dev,
 870                                     "%sabling SATA WC on phy %d\n",
 871                                     (mpt_enable_sata_wc) ? "En" : "Dis", i);
 872                         mptsas_set_sata_wc(mpt, &phyinfo->attached,
 873                                            mpt_enable_sata_wc);
 874                 }
 875         }
 876
 877         return (0);
 878 }
 879
 880 static int
 881 mpt_sata_pass_reply_handler(struct mpt_softc *mpt, request_t *req,
 882  uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
 883 {
 884         if (req != NULL) {
 885
 886                 if (reply_frame != NULL) {
 887                         req->IOCStatus = le16toh(reply_frame->IOCStatus);
 888                 }
 889                 req->state &= ~REQ_STATE_QUEUED;
 890                 req->state |= REQ_STATE_DONE;
 891                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
 892                 if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
 893                         wakeup(req);
 894                 } else if ((req->state & REQ_STATE_TIMEDOUT) != 0) {
 895                         /*
 896                          * Whew- we can free this request (late completion)
 897                          */
 898                         mpt_free_request(mpt, req);
 899                 }
 900         }
 901
 902         return (TRUE);
 903 }
 904
 905 /*
 906  * Read SCSI configuration information
 907  */
 908 static int
 909 mpt_read_config_info_spi(struct mpt_softc *mpt)
 910 {
 911         int rv, i;
 912
 913         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 0, 0,
 914             &mpt->mpt_port_page0.Header, FALSE, 5000);
 915         if (rv) {
 916                 return (-1);
 917         }
 918         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 0 Header: %x %x %x %x\n",
 919             mpt->mpt_port_page0.Header.PageVersion,
 920             mpt->mpt_port_page0.Header.PageLength,
 921             mpt->mpt_port_page0.Header.PageNumber,
 922             mpt->mpt_port_page0.Header.PageType);
 923
 924         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 1, 0,
 925             &mpt->mpt_port_page1.Header, FALSE, 5000);
 926         if (rv) {
 927                 return (-1);
 928         }
 929         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 1 Header: %x %x %x %x\n",
 930             mpt->mpt_port_page1.Header.PageVersion,
 931             mpt->mpt_port_page1.Header.PageLength,
 932             mpt->mpt_port_page1.Header.PageNumber,
 933             mpt->mpt_port_page1.Header.PageType);
 934
 935         rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 2, 0,
 936             &mpt->mpt_port_page2.Header, FALSE, 5000);
 937         if (rv) {
 938                 return (-1);
 939         }
 940         mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 2 Header: %x %x %x %x\n",
 941             mpt->mpt_port_page2.Header.PageVersion,
 942             mpt->mpt_port_page2.Header.PageLength,
 943             mpt->mpt_port_page2.Header.PageNumber,
 944             mpt->mpt_port_page2.Header.PageType);
 945
 946         for (i = 0; i < 16; i++) {
 947                 rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
 948                     0, i, &mpt->mpt_dev_page0[i].Header, FALSE, 5000);
 949                 if (rv) {
 950                         return (-1);
 951                 }
 952                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 953                     "SPI Target %d Device Page 0 Header: %x %x %x %x\n", i,
 954                     mpt->mpt_dev_page0[i].Header.PageVersion,
 955                     mpt->mpt_dev_page0[i].Header.PageLength,
 956                     mpt->mpt_dev_page0[i].Header.PageNumber,
 957                     mpt->mpt_dev_page0[i].Header.PageType);
 958
 959                 rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
 960                     1, i, &mpt->mpt_dev_page1[i].Header, FALSE, 5000);
 961                 if (rv) {
 962                         return (-1);
 963                 }
 964                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 965                     "SPI Target %d Device Page 1 Header: %x %x %x %x\n", i,
 966                     mpt->mpt_dev_page1[i].Header.PageVersion,
 967                     mpt->mpt_dev_page1[i].Header.PageLength,
 968                     mpt->mpt_dev_page1[i].Header.PageNumber,
 969                     mpt->mpt_dev_page1[i].Header.PageType);
 970         }
 971
 972         /*
 973          * At this point, we don't *have* to fail. As long as we have
 974          * valid config header information, we can (barely) lurch
 975          * along.
 976          */
 977
 978         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page0.Header,
 979             sizeof(mpt->mpt_port_page0), FALSE, 5000);
 980         if (rv) {
 981                 mpt_prt(mpt, "failed to read SPI Port Page 0\n");
 982         } else {
 983                 mpt2host_config_page_scsi_port_0(&mpt->mpt_port_page0);
 984                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
 985                     "SPI Port Page 0: Capabilities %x PhysicalInterface %x\n",
 986                     mpt->mpt_port_page0.Capabilities,
 987                     mpt->mpt_port_page0.PhysicalInterface);
 988         }
 989
 990         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page1.Header,
 991             sizeof(mpt->mpt_port_page1), FALSE, 5000);
 992         if (rv) {
 993                 mpt_prt(mpt, "failed to read SPI Port Page 1\n");
 994         } else {
 995                 mpt2host_config_page_scsi_port_1(&mpt->mpt_port_page1);
 996                 mpt_lprt(mpt, MPT_PRT_DEBUG,
 997                     "SPI Port Page 1: Configuration %x OnBusTimerValue %x\n",
 998                     mpt->mpt_port_page1.Configuration,
 999                     mpt->mpt_port_page1.OnBusTimerValue);
1000         }
1001
1002         rv = mpt_read_cur_cfg_page(mpt, 0, &mpt->mpt_port_page2.Header,
1003             sizeof(mpt->mpt_port_page2), FALSE, 5000);
1004         if (rv) {
1005                 mpt_prt(mpt, "failed to read SPI Port Page 2\n");
1006         } else {
1007                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1008                     "Port Page 2: Flags %x Settings %x\n",
1009                     mpt->mpt_port_page2.PortFlags,
1010                     mpt->mpt_port_page2.PortSettings);
1011                 mpt2host_config_page_scsi_port_2(&mpt->mpt_port_page2);
1012                 for (i = 0; i < 16; i++) {
1013                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1014                             " Port Page 2 Tgt %d: timo %x SF %x Flags %x\n",
1015                             i, mpt->mpt_port_page2.DeviceSettings[i].Timeout,
1016                             mpt->mpt_port_page2.DeviceSettings[i].SyncFactor,
1017                             mpt->mpt_port_page2.DeviceSettings[i].DeviceFlags);
1018                 }
1019         }
1020
1021         for (i = 0; i < 16; i++) {
1022                 rv = mpt_read_cur_cfg_page(mpt, i,
1023                     &mpt->mpt_dev_page0[i].Header, sizeof(*mpt->mpt_dev_page0),
1024                     FALSE, 5000);
1025                 if (rv) {
1026                         mpt_prt(mpt,
1027                             "cannot read SPI Target %d Device Page 0\n", i);
1028                         continue;
1029                 }
1030                 mpt2host_config_page_scsi_device_0(&mpt->mpt_dev_page0[i]);
1031                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1032                     "target %d page 0: Negotiated Params %x Information %x\n",
1033                     i, mpt->mpt_dev_page0[i].NegotiatedParameters,
1034                     mpt->mpt_dev_page0[i].Information);
1035
1036                 rv = mpt_read_cur_cfg_page(mpt, i,
1037                     &mpt->mpt_dev_page1[i].Header, sizeof(*mpt->mpt_dev_page1),
1038                     FALSE, 5000);
1039                 if (rv) {
1040                         mpt_prt(mpt,
1041                             "cannot read SPI Target %d Device Page 1\n", i);
1042                         continue;
1043                 }
1044                 mpt2host_config_page_scsi_device_1(&mpt->mpt_dev_page1[i]);
1045                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
1046                     "target %d page 1: Requested Params %x Configuration %x\n",
1047                     i, mpt->mpt_dev_page1[i].RequestedParameters,
1048                     mpt->mpt_dev_page1[i].Configuration);
1049         }
1050         return (0);
1051 }
1052
1053 /*
1054  * Validate SPI configuration information.
1055  *
1056  * In particular, validate SPI Port Page 1.
1057  */
1058 static int
1059 mpt_set_initial_config_spi(struct mpt_softc *mpt)
1060 {
1061         int i, pp1val = ((1 << mpt->mpt_ini_id) << 16) | mpt->mpt_ini_id;
1062         int error;
1063
1064         mpt->mpt_disc_enable = 0xff;
1065         mpt->mpt_tag_enable = 0;
1066
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 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 void
1154 mpt_cam_ready(struct mpt_softc *mpt)
1155 {
1156         /*
1157          * If we're in target mode, hang out resources now
1158          * so we don't cause the world to hang talking to us.
1159          */
1160         if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
1161                 /*
1162                  * Try to add some target command resources
1163                  */
1164                 MPT_LOCK(mpt);
1165                 if (mpt_add_target_commands(mpt) == FALSE) {
1166                         mpt_prt(mpt, "failed to add target commands\n");
1167                 }
1168                 MPT_UNLOCK(mpt);
1169         }
1170         mpt->ready = 1;
1171 }
1172
1173 void
1174 mpt_cam_detach(struct mpt_softc *mpt)
1175 {
1176         mpt_handler_t handler;
1177
1178         MPT_LOCK(mpt);
1179         mpt->ready = 0;
1180         mpt_terminate_recovery_thread(mpt);
1181
1182         handler.reply_handler = mpt_scsi_reply_handler;
1183         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1184                                scsi_io_handler_id);
1185         handler.reply_handler = mpt_scsi_tmf_reply_handler;
1186         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1187                                scsi_tmf_handler_id);
1188         handler.reply_handler = mpt_fc_els_reply_handler;
1189         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1190                                fc_els_handler_id);
1191         handler.reply_handler = mpt_scsi_tgt_reply_handler;
1192         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1193                                mpt->scsi_tgt_handler_id);
1194         handler.reply_handler = mpt_sata_pass_reply_handler;
1195         mpt_deregister_handler(mpt, MPT_HANDLER_REPLY, handler,
1196                                sata_pass_handler_id);
1197
1198         if (mpt->tmf_req != NULL) {
1199                 mpt->tmf_req->state = REQ_STATE_ALLOCATED;
1200                 mpt_free_request(mpt, mpt->tmf_req);
1201                 mpt->tmf_req = NULL;
1202         }
1203         if (mpt->sas_portinfo != NULL) {
1204                 free(mpt->sas_portinfo, M_DEVBUF);
1205                 mpt->sas_portinfo = NULL;
1206         }
1207         MPT_UNLOCK(mpt);
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 }
1223
1224 /* This routine is used after a system crash to dump core onto the swap device.
1225  */
1226 static void
1227 mpt_poll(struct cam_sim *sim)
1228 {
1229         struct mpt_softc *mpt;
1230
1231         mpt = (struct mpt_softc *)cam_sim_softc(sim);
1232         mpt_intr(mpt);
1233 }
1234
1235 /*
1236  * Watchdog timeout routine for SCSI requests.
1237  */
1238 static void
1239 mpt_timeout(void *arg)
1240 {
1241         union ccb        *ccb;
1242         struct mpt_softc *mpt;
1243         request_t        *req;
1244
1245         ccb = (union ccb *)arg;
1246         mpt = ccb->ccb_h.ccb_mpt_ptr;
1247
1248         MPT_LOCK(mpt);
1249         req = ccb->ccb_h.ccb_req_ptr;
1250         mpt_prt(mpt, "request %p:%u timed out for ccb %p (req->ccb %p)\n", req,
1251             req->serno, ccb, req->ccb);
1252 /* XXX: WHAT ARE WE TRYING TO DO HERE? */
1253         if ((req->state & REQ_STATE_QUEUED) == REQ_STATE_QUEUED) {
1254                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
1255                 TAILQ_INSERT_TAIL(&mpt->request_timeout_list, req, links);
1256                 req->state |= REQ_STATE_TIMEDOUT;
1257                 mpt_wakeup_recovery_thread(mpt);
1258         }
1259         MPT_UNLOCK(mpt);
1260 }
1261
1262 /*
1263  * Callback routine from "bus_dmamap_load" or, in simple cases, called directly.
1264  *
1265  * Takes a list of physical segments and builds the SGL for SCSI IO command
1266  * and forwards the commard to the IOC after one last check that CAM has not
1267  * aborted the transaction.
1268  */
1269 static void
1270 mpt_execute_req_a64(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1271 {
1272         request_t *req, *trq;
1273         char *mpt_off;
1274         union ccb *ccb;
1275         struct mpt_softc *mpt;
1276         int seg, first_lim;
1277         uint32_t flags, nxt_off;
1278         void *sglp = NULL;
1279         MSG_REQUEST_HEADER *hdrp;
1280         SGE_SIMPLE64 *se;
1281         SGE_CHAIN64 *ce;
1282         int istgt = 0;
1283
1284         req = (request_t *)arg;
1285         ccb = req->ccb;
1286
1287         mpt = ccb->ccb_h.ccb_mpt_ptr;
1288         req = ccb->ccb_h.ccb_req_ptr;
1289
1290         hdrp = req->req_vbuf;
1291         mpt_off = req->req_vbuf;
1292
1293         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1294                 error = EFBIG;
1295         }
1296
1297         if (error == 0) {
1298                 switch (hdrp->Function) {
1299                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1300                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1301                         istgt = 0;
1302                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1303                         break;
1304                 case MPI_FUNCTION_TARGET_ASSIST:
1305                         istgt = 1;
1306                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1307                         break;
1308                 default:
1309                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req_a64\n",
1310                             hdrp->Function);
1311                         error = EINVAL;
1312                         break;
1313                 }
1314         }
1315
1316         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1317                 error = EFBIG;
1318                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1319                     nseg, mpt->max_seg_cnt);
1320         }
1321
1322 bad:
1323         if (error != 0) {
1324                 if (error != EFBIG && error != ENOMEM) {
1325                         mpt_prt(mpt, "mpt_execute_req_a64: err %d\n", error);
1326                 }
1327                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1328                         cam_status status;
1329                         mpt_freeze_ccb(ccb);
1330                         if (error == EFBIG) {
1331                                 status = CAM_REQ_TOO_BIG;
1332                         } else if (error == ENOMEM) {
1333                                 if (mpt->outofbeer == 0) {
1334                                         mpt->outofbeer = 1;
1335                                         xpt_freeze_simq(mpt->sim, 1);
1336                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1337                                             "FREEZEQ\n");
1338                                 }
1339                                 status = CAM_REQUEUE_REQ;
1340                         } else {
1341                                 status = CAM_REQ_CMP_ERR;
1342                         }
1343                         mpt_set_ccb_status(ccb, status);
1344                 }
1345                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1346                         request_t *cmd_req =
1347                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1348                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1349                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1350                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1351                 }
1352                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1353                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1354                 xpt_done(ccb);
1355                 CAMLOCK_2_MPTLOCK(mpt);
1356                 mpt_free_request(mpt, req);
1357                 MPTLOCK_2_CAMLOCK(mpt);
1358                 return;
1359         }
1360
1361         /*
1362          * No data to transfer?
1363          * Just make a single simple SGL with zero length.
1364          */
1365
1366         if (mpt->verbose >= MPT_PRT_DEBUG) {
1367                 int tidx = ((char *)sglp) - mpt_off;
1368                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1369         }
1370
1371         if (nseg == 0) {
1372                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1373                 MPI_pSGE_SET_FLAGS(se1,
1374                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1375                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1376                 se1->FlagsLength = htole32(se1->FlagsLength);
1377                 goto out;
1378         }
1379
1380
1381         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1382         if (istgt == 0) {
1383                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1384                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1385                 }
1386         } else {
1387                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1388                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1389                 }
1390         }
1391
1392         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1393                 bus_dmasync_op_t op;
1394                 if (istgt == 0) {
1395                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1396                                 op = BUS_DMASYNC_PREREAD;
1397                         } else {
1398                                 op = BUS_DMASYNC_PREWRITE;
1399                         }
1400                 } else {
1401                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1402                                 op = BUS_DMASYNC_PREWRITE;
1403                         } else {
1404                                 op = BUS_DMASYNC_PREREAD;
1405                         }
1406                 }
1407                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1408         }
1409
1410         /*
1411          * Okay, fill in what we can at the end of the command frame.
1412          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1413          * the command frame.
1414          *
1415          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1416          * SIMPLE64 pointers and start doing CHAIN64 entries after
1417          * that.
1418          */
1419
1420         if (nseg < MPT_NSGL_FIRST(mpt)) {
1421                 first_lim = nseg;
1422         } else {
1423                 /*
1424                  * Leave room for CHAIN element
1425                  */
1426                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1427         }
1428
1429         se = (SGE_SIMPLE64 *) sglp;
1430         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1431                 uint32_t tf;
1432
1433                 memset(se, 0, sizeof (*se));
1434                 se->Address.Low = htole32(dm_segs->ds_addr & 0xffffffff);
1435                 if (sizeof(bus_addr_t) > 4) {
1436                         se->Address.High =
1437                             htole32(((uint64_t)dm_segs->ds_addr) >> 32);
1438                 }
1439                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1440                 tf = flags;
1441                 if (seg == first_lim - 1) {
1442                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1443                 }
1444                 if (seg == nseg - 1) {
1445                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1446                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1447                 }
1448                 MPI_pSGE_SET_FLAGS(se, tf);
1449                 se->FlagsLength = htole32(se->FlagsLength);
1450         }
1451
1452         if (seg == nseg) {
1453                 goto out;
1454         }
1455
1456         /*
1457          * Tell the IOC where to find the first chain element.
1458          */
1459         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1460         nxt_off = MPT_RQSL(mpt);
1461         trq = req;
1462
1463         /*
1464          * Make up the rest of the data segments out of a chain element
1465          * (contiained in the current request frame) which points to
1466          * SIMPLE64 elements in the next request frame, possibly ending
1467          * with *another* chain element (if there's more).
1468          */
1469         while (seg < nseg) {
1470                 int this_seg_lim;
1471                 uint32_t tf, cur_off;
1472                 bus_addr_t chain_list_addr;
1473
1474                 /*
1475                  * Point to the chain descriptor. Note that the chain
1476                  * descriptor is at the end of the *previous* list (whether
1477                  * chain or simple).
1478                  */
1479                 ce = (SGE_CHAIN64 *) se;
1480
1481                 /*
1482                  * Before we change our current pointer, make  sure we won't
1483                  * overflow the request area with this frame. Note that we
1484                  * test against 'greater than' here as it's okay in this case
1485                  * to have next offset be just outside the request area.
1486                  */
1487                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1488                         nxt_off = MPT_REQUEST_AREA;
1489                         goto next_chain;
1490                 }
1491
1492                 /*
1493                  * Set our SGE element pointer to the beginning of the chain
1494                  * list and update our next chain list offset.
1495                  */
1496                 se = (SGE_SIMPLE64 *) &mpt_off[nxt_off];
1497                 cur_off = nxt_off;
1498                 nxt_off += MPT_RQSL(mpt);
1499
1500                 /*
1501                  * Now initialized the chain descriptor.
1502                  */
1503                 memset(ce, 0, sizeof (*ce));
1504
1505                 /*
1506                  * Get the physical address of the chain list.
1507                  */
1508                 chain_list_addr = trq->req_pbuf;
1509                 chain_list_addr += cur_off;
1510                 if (sizeof (bus_addr_t) > 4) {
1511                         ce->Address.High =
1512                             htole32(((uint64_t)chain_list_addr) >> 32);
1513                 }
1514                 ce->Address.Low = htole32(chain_list_addr & 0xffffffff);
1515                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT |
1516                             MPI_SGE_FLAGS_64_BIT_ADDRESSING;
1517
1518                 /*
1519                  * If we have more than a frame's worth of segments left,
1520                  * set up the chain list to have the last element be another
1521                  * chain descriptor.
1522                  */
1523                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1524                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1525                         /*
1526                          * The length of the chain is the length in bytes of the
1527                          * number of segments plus the next chain element.
1528                          *
1529                          * The next chain descriptor offset is the length,
1530                          * in words, of the number of segments.
1531                          */
1532                         ce->Length = (this_seg_lim - seg) *
1533                             sizeof (SGE_SIMPLE64);
1534                         ce->NextChainOffset = ce->Length >> 2;
1535                         ce->Length += sizeof (SGE_CHAIN64);
1536                 } else {
1537                         this_seg_lim = nseg;
1538                         ce->Length = (this_seg_lim - seg) *
1539                             sizeof (SGE_SIMPLE64);
1540                 }
1541                 ce->Length = htole16(ce->Length);
1542
1543                 /*
1544                  * Fill in the chain list SGE elements with our segment data.
1545                  *
1546                  * If we're the last element in this chain list, set the last
1547                  * element flag. If we're the completely last element period,
1548                  * set the end of list and end of buffer flags.
1549                  */
1550                 while (seg < this_seg_lim) {
1551                         memset(se, 0, sizeof (*se));
1552                         se->Address.Low = htole32(dm_segs->ds_addr &
1553                             0xffffffff);
1554                         if (sizeof (bus_addr_t) > 4) {
1555                                 se->Address.High =
1556                                     htole32(((uint64_t)dm_segs->ds_addr) >> 32);
1557                         }
1558                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1559                         tf = flags;
1560                         if (seg ==  this_seg_lim - 1) {
1561                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1562                         }
1563                         if (seg == nseg - 1) {
1564                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1565                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1566                         }
1567                         MPI_pSGE_SET_FLAGS(se, tf);
1568                         se->FlagsLength = htole32(se->FlagsLength);
1569                         se++;
1570                         seg++;
1571                         dm_segs++;
1572                 }
1573
1574     next_chain:
1575                 /*
1576                  * If we have more segments to do and we've used up all of
1577                  * the space in a request area, go allocate another one
1578                  * and chain to that.
1579                  */
1580                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1581                         request_t *nrq;
1582
1583                         CAMLOCK_2_MPTLOCK(mpt);
1584                         nrq = mpt_get_request(mpt, FALSE);
1585                         MPTLOCK_2_CAMLOCK(mpt);
1586
1587                         if (nrq == NULL) {
1588                                 error = ENOMEM;
1589                                 goto bad;
1590                         }
1591
1592                         /*
1593                          * Append the new request area on the tail of our list.
1594                          */
1595                         if ((trq = req->chain) == NULL) {
1596                                 req->chain = nrq;
1597                         } else {
1598                                 while (trq->chain != NULL) {
1599                                         trq = trq->chain;
1600                                 }
1601                                 trq->chain = nrq;
1602                         }
1603                         trq = nrq;
1604                         mpt_off = trq->req_vbuf;
1605                         if (mpt->verbose >= MPT_PRT_DEBUG) {
1606                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
1607                         }
1608                         nxt_off = 0;
1609                 }
1610         }
1611 out:
1612
1613         /*
1614          * Last time we need to check if this CCB needs to be aborted.
1615          */
1616         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
1617                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1618                         request_t *cmd_req =
1619                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1620                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1621                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1622                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1623                 }
1624                 mpt_prt(mpt,
1625                     "mpt_execute_req_a64: I/O cancelled (status 0x%x)\n",
1626                     ccb->ccb_h.status & CAM_STATUS_MASK);
1627                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
1628                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
1629                 }
1630                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1631                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1632                 xpt_done(ccb);
1633                 CAMLOCK_2_MPTLOCK(mpt);
1634                 mpt_free_request(mpt, req);
1635                 MPTLOCK_2_CAMLOCK(mpt);
1636                 return;
1637         }
1638
1639         ccb->ccb_h.status |= CAM_SIM_QUEUED;
1640         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
1641                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
1642                     mpt_timeout, ccb);
1643         }
1644         if (mpt->verbose > MPT_PRT_DEBUG) {
1645                 int nc = 0;
1646                 mpt_print_request(req->req_vbuf);
1647                 for (trq = req->chain; trq; trq = trq->chain) {
1648                         printf("  Additional Chain Area %d\n", nc++);
1649                         mpt_dump_sgl(trq->req_vbuf, 0);
1650                 }
1651         }
1652
1653         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1654                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1655                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
1656 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
1657                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
1658                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
1659                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
1660                 } else {
1661                         tgt->state = TGT_STATE_MOVING_DATA;
1662                 }
1663 #else
1664                 tgt->state = TGT_STATE_MOVING_DATA;
1665 #endif
1666         }
1667         CAMLOCK_2_MPTLOCK(mpt);
1668         mpt_send_cmd(mpt, req);
1669         MPTLOCK_2_CAMLOCK(mpt);
1670 }
1671
1672 static void
1673 mpt_execute_req(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1674 {
1675         request_t *req, *trq;
1676         char *mpt_off;
1677         union ccb *ccb;
1678         struct mpt_softc *mpt;
1679         int seg, first_lim;
1680         uint32_t flags, nxt_off;
1681         void *sglp = NULL;
1682         MSG_REQUEST_HEADER *hdrp;
1683         SGE_SIMPLE32 *se;
1684         SGE_CHAIN32 *ce;
1685         int istgt = 0;
1686
1687         req = (request_t *)arg;
1688         ccb = req->ccb;
1689
1690         mpt = ccb->ccb_h.ccb_mpt_ptr;
1691         req = ccb->ccb_h.ccb_req_ptr;
1692
1693         hdrp = req->req_vbuf;
1694         mpt_off = req->req_vbuf;
1695
1696
1697         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1698                 error = EFBIG;
1699         }
1700
1701         if (error == 0) {
1702                 switch (hdrp->Function) {
1703                 case MPI_FUNCTION_SCSI_IO_REQUEST:
1704                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
1705                         sglp = &((PTR_MSG_SCSI_IO_REQUEST)hdrp)->SGL;
1706                         break;
1707                 case MPI_FUNCTION_TARGET_ASSIST:
1708                         istgt = 1;
1709                         sglp = &((PTR_MSG_TARGET_ASSIST_REQUEST)hdrp)->SGL;
1710                         break;
1711                 default:
1712                         mpt_prt(mpt, "bad fct 0x%x in mpt_execute_req\n",
1713                             hdrp->Function);
1714                         error = EINVAL;
1715                         break;
1716                 }
1717         }
1718
1719         if (error == 0 && ((uint32_t)nseg) >= mpt->max_seg_cnt) {
1720                 error = EFBIG;
1721                 mpt_prt(mpt, "segment count %d too large (max %u)\n",
1722                     nseg, mpt->max_seg_cnt);
1723         }
1724
1725 bad:
1726         if (error != 0) {
1727                 if (error != EFBIG && error != ENOMEM) {
1728                         mpt_prt(mpt, "mpt_execute_req: err %d\n", error);
1729                 }
1730                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
1731                         cam_status status;
1732                         mpt_freeze_ccb(ccb);
1733                         if (error == EFBIG) {
1734                                 status = CAM_REQ_TOO_BIG;
1735                         } else if (error == ENOMEM) {
1736                                 if (mpt->outofbeer == 0) {
1737                                         mpt->outofbeer = 1;
1738                                         xpt_freeze_simq(mpt->sim, 1);
1739                                         mpt_lprt(mpt, MPT_PRT_DEBUG,
1740                                             "FREEZEQ\n");
1741                                 }
1742                                 status = CAM_REQUEUE_REQ;
1743                         } else {
1744                                 status = CAM_REQ_CMP_ERR;
1745                         }
1746                         mpt_set_ccb_status(ccb, status);
1747                 }
1748                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
1749                         request_t *cmd_req =
1750                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
1751                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
1752                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
1753                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
1754                 }
1755                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1756                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
1757                 xpt_done(ccb);
1758                 CAMLOCK_2_MPTLOCK(mpt);
1759                 mpt_free_request(mpt, req);
1760                 MPTLOCK_2_CAMLOCK(mpt);
1761                 return;
1762         }
1763
1764         /*
1765          * No data to transfer?
1766          * Just make a single simple SGL with zero length.
1767          */
1768
1769         if (mpt->verbose >= MPT_PRT_DEBUG) {
1770                 int tidx = ((char *)sglp) - mpt_off;
1771                 memset(&mpt_off[tidx], 0xff, MPT_REQUEST_AREA - tidx);
1772         }
1773
1774         if (nseg == 0) {
1775                 SGE_SIMPLE32 *se1 = (SGE_SIMPLE32 *) sglp;
1776                 MPI_pSGE_SET_FLAGS(se1,
1777                     (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
1778                     MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
1779                 se1->FlagsLength = htole32(se1->FlagsLength);
1780                 goto out;
1781         }
1782
1783
1784         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
1785         if (istgt == 0) {
1786                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1787                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1788                 }
1789         } else {
1790                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1791                         flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
1792                 }
1793         }
1794
1795         if (!(ccb->ccb_h.flags & (CAM_SG_LIST_PHYS|CAM_DATA_PHYS))) {
1796                 bus_dmasync_op_t op;
1797                 if (istgt) {
1798                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1799                                 op = BUS_DMASYNC_PREREAD;
1800                         } else {
1801                                 op = BUS_DMASYNC_PREWRITE;
1802                         }
1803                 } else {
1804                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1805                                 op = BUS_DMASYNC_PREWRITE;
1806                         } else {
1807                                 op = BUS_DMASYNC_PREREAD;
1808                         }
1809                 }
1810                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
1811         }
1812
1813         /*
1814          * Okay, fill in what we can at the end of the command frame.
1815          * If we have up to MPT_NSGL_FIRST, we can fit them all into
1816          * the command frame.
1817          *
1818          * Otherwise, we fill up through MPT_NSGL_FIRST less one
1819          * SIMPLE32 pointers and start doing CHAIN32 entries after
1820          * that.
1821          */
1822
1823         if (nseg < MPT_NSGL_FIRST(mpt)) {
1824                 first_lim = nseg;
1825         } else {
1826                 /*
1827                  * Leave room for CHAIN element
1828                  */
1829                 first_lim = MPT_NSGL_FIRST(mpt) - 1;
1830         }
1831
1832         se = (SGE_SIMPLE32 *) sglp;
1833         for (seg = 0; seg < first_lim; seg++, se++, dm_segs++) {
1834                 uint32_t tf;
1835
1836                 memset(se, 0,sizeof (*se));
1837                 se->Address = htole32(dm_segs->ds_addr);
1838
1839
1840
1841                 MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1842                 tf = flags;
1843                 if (seg == first_lim - 1) {
1844                         tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
1845                 }
1846                 if (seg == nseg - 1) {
1847                         tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1848                                 MPI_SGE_FLAGS_END_OF_BUFFER;
1849                 }
1850                 MPI_pSGE_SET_FLAGS(se, tf);
1851                 se->FlagsLength = htole32(se->FlagsLength);
1852         }
1853
1854         if (seg == nseg) {
1855                 goto out;
1856         }
1857
1858         /*
1859          * Tell the IOC where to find the first chain element.
1860          */
1861         hdrp->ChainOffset = ((char *)se - (char *)hdrp) >> 2;
1862         nxt_off = MPT_RQSL(mpt);
1863         trq = req;
1864
1865         /*
1866          * Make up the rest of the data segments out of a chain element
1867          * (contiained in the current request frame) which points to
1868          * SIMPLE32 elements in the next request frame, possibly ending
1869          * with *another* chain element (if there's more).
1870          */
1871         while (seg < nseg) {
1872                 int this_seg_lim;
1873                 uint32_t tf, cur_off;
1874                 bus_addr_t chain_list_addr;
1875
1876                 /*
1877                  * Point to the chain descriptor. Note that the chain
1878                  * descriptor is at the end of the *previous* list (whether
1879                  * chain or simple).
1880                  */
1881                 ce = (SGE_CHAIN32 *) se;
1882
1883                 /*
1884                  * Before we change our current pointer, make  sure we won't
1885                  * overflow the request area with this frame. Note that we
1886                  * test against 'greater than' here as it's okay in this case
1887                  * to have next offset be just outside the request area.
1888                  */
1889                 if ((nxt_off + MPT_RQSL(mpt)) > MPT_REQUEST_AREA) {
1890                         nxt_off = MPT_REQUEST_AREA;
1891                         goto next_chain;
1892                 }
1893
1894                 /*
1895                  * Set our SGE element pointer to the beginning of the chain
1896                  * list and update our next chain list offset.
1897                  */
1898                 se = (SGE_SIMPLE32 *) &mpt_off[nxt_off];
1899                 cur_off = nxt_off;
1900                 nxt_off += MPT_RQSL(mpt);
1901
1902                 /*
1903                  * Now initialized the chain descriptor.
1904                  */
1905                 memset(ce, 0, sizeof (*ce));
1906
1907                 /*
1908                  * Get the physical address of the chain list.
1909                  */
1910                 chain_list_addr = trq->req_pbuf;
1911                 chain_list_addr += cur_off;
1912
1913
1914
1915                 ce->Address = htole32(chain_list_addr);
1916                 ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
1917
1918
1919                 /*
1920                  * If we have more than a frame's worth of segments left,
1921                  * set up the chain list to have the last element be another
1922                  * chain descriptor.
1923                  */
1924                 if ((nseg - seg) > MPT_NSGL(mpt)) {
1925                         this_seg_lim = seg + MPT_NSGL(mpt) - 1;
1926                         /*
1927                          * The length of the chain is the length in bytes of the
1928                          * number of segments plus the next chain element.
1929                          *
1930                          * The next chain descriptor offset is the length,
1931                          * in words, of the number of segments.
1932                          */
1933                         ce->Length = (this_seg_lim - seg) *
1934                             sizeof (SGE_SIMPLE32);
1935                         ce->NextChainOffset = ce->Length >> 2;
1936                         ce->Length += sizeof (SGE_CHAIN32);
1937                 } else {
1938                         this_seg_lim = nseg;
1939                         ce->Length = (this_seg_lim - seg) *
1940                             sizeof (SGE_SIMPLE32);
1941                 }
1942                 ce->Length = htole16(ce->Length);
1943
1944                 /*
1945                  * Fill in the chain list SGE elements with our segment data.
1946                  *
1947                  * If we're the last element in this chain list, set the last
1948                  * element flag. If we're the completely last element period,
1949                  * set the end of list and end of buffer flags.
1950                  */
1951                 while (seg < this_seg_lim) {
1952                         memset(se, 0, sizeof (*se));
1953                         se->Address = htole32(dm_segs->ds_addr);
1954
1955
1956
1957
1958                         MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
1959                         tf = flags;
1960                         if (seg ==  this_seg_lim - 1) {
1961                                 tf |=   MPI_SGE_FLAGS_LAST_ELEMENT;
1962                         }
1963                         if (seg == nseg - 1) {
1964                                 tf |=   MPI_SGE_FLAGS_END_OF_LIST |
1965                                         MPI_SGE_FLAGS_END_OF_BUFFER;
1966                         }
1967                         MPI_pSGE_SET_FLAGS(se, tf);
1968                         se->FlagsLength = htole32(se->FlagsLength);
1969                         se++;
1970                         seg++;
1971                         dm_segs++;
1972                 }
1973
1974     next_chain:
1975                 /*
1976                  * If we have more segments to do and we've used up all of
1977                  * the space in a request area, go allocate another one
1978                  * and chain to that.
1979                  */
1980                 if (seg < nseg && nxt_off >= MPT_REQUEST_AREA) {
1981                         request_t *nrq;
1982
1983                         CAMLOCK_2_MPTLOCK(mpt);
1984                         nrq = mpt_get_request(mpt, FALSE);
1985                         MPTLOCK_2_CAMLOCK(mpt);
1986
1987                         if (nrq == NULL) {
1988                                 error = ENOMEM;
1989                                 goto bad;
1990                         }
1991
1992                         /*
1993                          * Append the new request area on the tail of our list.
1994                          */
1995                         if ((trq = req->chain) == NULL) {
1996                                 req->chain = nrq;
1997                         } else {
1998                                 while (trq->chain != NULL) {
1999                                         trq = trq->chain;
2000                                 }
2001                                 trq->chain = nrq;
2002                         }
2003                         trq = nrq;
2004                         mpt_off = trq->req_vbuf;
2005                         if (mpt->verbose >= MPT_PRT_DEBUG) {
2006                                 memset(mpt_off, 0xff, MPT_REQUEST_AREA);
2007                         }
2008                         nxt_off = 0;
2009                 }
2010         }
2011 out:
2012
2013         /*
2014          * Last time we need to check if this CCB needs to be aborted.
2015          */
2016         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
2017                 if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2018                         request_t *cmd_req =
2019                                 MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2020                         MPT_TGT_STATE(mpt, cmd_req)->state = TGT_STATE_IN_CAM;
2021                         MPT_TGT_STATE(mpt, cmd_req)->ccb = NULL;
2022                         MPT_TGT_STATE(mpt, cmd_req)->req = NULL;
2023                 }
2024                 mpt_prt(mpt,
2025                     "mpt_execute_req: I/O cancelled (status 0x%x)\n",
2026                     ccb->ccb_h.status & CAM_STATUS_MASK);
2027                 if (nseg && (ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
2028                         bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2029                 }
2030                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2031                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
2032                 xpt_done(ccb);
2033                 CAMLOCK_2_MPTLOCK(mpt);
2034                 mpt_free_request(mpt, req);
2035                 MPTLOCK_2_CAMLOCK(mpt);
2036                 return;
2037         }
2038
2039         ccb->ccb_h.status |= CAM_SIM_QUEUED;
2040         if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
2041                 mpt_req_timeout(req, (ccb->ccb_h.timeout * hz) / 1000,
2042                     mpt_timeout, ccb);
2043         }
2044         if (mpt->verbose > MPT_PRT_DEBUG) {
2045                 int nc = 0;
2046                 mpt_print_request(req->req_vbuf);
2047                 for (trq = req->chain; trq; trq = trq->chain) {
2048                         printf("  Additional Chain Area %d\n", nc++);
2049                         mpt_dump_sgl(trq->req_vbuf, 0);
2050                 }
2051         }
2052
2053         if (hdrp->Function == MPI_FUNCTION_TARGET_ASSIST) {
2054                 request_t *cmd_req = MPT_TAG_2_REQ(mpt, ccb->csio.tag_id);
2055                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
2056 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
2057                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
2058                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
2059                         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
2060                 } else {
2061                         tgt->state = TGT_STATE_MOVING_DATA;
2062                 }
2063 #else
2064                 tgt->state = TGT_STATE_MOVING_DATA;
2065 #endif
2066         }
2067         CAMLOCK_2_MPTLOCK(mpt);
2068         mpt_send_cmd(mpt, req);
2069         MPTLOCK_2_CAMLOCK(mpt);
2070 }
2071
2072 static void
2073 mpt_start(struct cam_sim *sim, union ccb *ccb)
2074 {
2075         request_t *req;
2076         struct mpt_softc *mpt;
2077         MSG_SCSI_IO_REQUEST *mpt_req;
2078         struct ccb_scsiio *csio = &ccb->csio;
2079         struct ccb_hdr *ccbh = &ccb->ccb_h;
2080         bus_dmamap_callback_t *cb;
2081         target_id_t tgt;
2082         int raid_passthru;
2083
2084         /* Get the pointer for the physical addapter */
2085         mpt = ccb->ccb_h.ccb_mpt_ptr;
2086         raid_passthru = (sim == mpt->phydisk_sim);
2087
2088         CAMLOCK_2_MPTLOCK(mpt);
2089         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
2090                 if (mpt->outofbeer == 0) {
2091                         mpt->outofbeer = 1;
2092                         xpt_freeze_simq(mpt->sim, 1);
2093                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
2094                 }
2095                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2096                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
2097                 MPTLOCK_2_CAMLOCK(mpt);
2098                 xpt_done(ccb);
2099                 return;
2100         }
2101 #ifdef  INVARIANTS
2102         mpt_req_not_spcl(mpt, req, "mpt_start", __LINE__);
2103 #endif
2104         MPTLOCK_2_CAMLOCK(mpt);
2105
2106         if (sizeof (bus_addr_t) > 4) {
2107                 cb = mpt_execute_req_a64;
2108         } else {
2109                 cb = mpt_execute_req;
2110         }
2111
2112         /*
2113          * Link the ccb and the request structure so we can find
2114          * the other knowing either the request or the ccb
2115          */
2116         req->ccb = ccb;
2117         ccb->ccb_h.ccb_req_ptr = req;
2118
2119         /* Now we build the command for the IOC */
2120         mpt_req = req->req_vbuf;
2121         memset(mpt_req, 0, sizeof (MSG_SCSI_IO_REQUEST));
2122
2123         mpt_req->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
2124         if (raid_passthru) {
2125                 mpt_req->Function = MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2126                 CAMLOCK_2_MPTLOCK(mpt);
2127                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
2128                         MPTLOCK_2_CAMLOCK(mpt);
2129                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2130                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
2131                         xpt_done(ccb);
2132                         return;
2133                 }
2134                 MPTLOCK_2_CAMLOCK(mpt);
2135                 mpt_req->Bus = 0;       /* we never set bus here */
2136         } else {
2137                 tgt = ccb->ccb_h.target_id;
2138                 mpt_req->Bus = 0;       /* XXX */
2139
2140         }
2141         mpt_req->SenseBufferLength =
2142                 (csio->sense_len < MPT_SENSE_SIZE) ?
2143                  csio->sense_len : MPT_SENSE_SIZE;
2144
2145         /*
2146          * We use the message context to find the request structure when we
2147          * Get the command completion interrupt from the IOC.
2148          */
2149         mpt_req->MsgContext = htole32(req->index | scsi_io_handler_id);
2150
2151         /* Which physical device to do the I/O on */
2152         mpt_req->TargetID = tgt;
2153
2154         /* We assume a single level LUN type */
2155         if (ccb->ccb_h.target_lun >= MPT_MAX_LUNS) {
2156                 mpt_req->LUN[0] = 0x40 | ((ccb->ccb_h.target_lun >> 8) & 0x3f);
2157                 mpt_req->LUN[1] = ccb->ccb_h.target_lun & 0xff;
2158         } else {
2159                 mpt_req->LUN[1] = ccb->ccb_h.target_lun;
2160         }
2161
2162         /* Set the direction of the transfer */
2163         if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
2164                 mpt_req->Control = MPI_SCSIIO_CONTROL_READ;
2165         } else if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
2166                 mpt_req->Control = MPI_SCSIIO_CONTROL_WRITE;
2167         } else {
2168                 mpt_req->Control = MPI_SCSIIO_CONTROL_NODATATRANSFER;
2169         }
2170
2171         if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0) {
2172                 switch(ccb->csio.tag_action) {
2173                 case MSG_HEAD_OF_Q_TAG:
2174                         mpt_req->Control |= MPI_SCSIIO_CONTROL_HEADOFQ;
2175                         break;
2176                 case MSG_ACA_TASK:
2177                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ACAQ;
2178                         break;
2179                 case MSG_ORDERED_Q_TAG:
2180                         mpt_req->Control |= MPI_SCSIIO_CONTROL_ORDEREDQ;
2181                         break;
2182                 case MSG_SIMPLE_Q_TAG:
2183                 default:
2184                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2185                         break;
2186                 }
2187         } else {
2188                 if (mpt->is_fc || mpt->is_sas) {
2189                         mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
2190                 } else {
2191                         /* XXX No such thing for a target doing packetized. */
2192                         mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
2193                 }
2194         }
2195
2196         if (mpt->is_spi) {
2197                 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) {
2198                         mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT;
2199                 }
2200         }
2201         mpt_req->Control = htole32(mpt_req->Control);
2202
2203         /* Copy the scsi command block into place */
2204         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
2205                 bcopy(csio->cdb_io.cdb_ptr, mpt_req->CDB, csio->cdb_len);
2206         } else {
2207                 bcopy(csio->cdb_io.cdb_bytes, mpt_req->CDB, csio->cdb_len);
2208         }
2209
2210         mpt_req->CDBLength = csio->cdb_len;
2211         mpt_req->DataLength = htole32(csio->dxfer_len);
2212         mpt_req->SenseBufferLowAddr = htole32(req->sense_pbuf);
2213
2214         /*
2215          * Do a *short* print here if we're set to MPT_PRT_DEBUG
2216          */
2217         if (mpt->verbose == MPT_PRT_DEBUG) {
2218                 U32 df;
2219                 mpt_prt(mpt, "mpt_start: %s op 0x%x ",
2220                     (mpt_req->Function == MPI_FUNCTION_SCSI_IO_REQUEST)?
2221                     "SCSI_IO_REQUEST" : "SCSI_IO_PASSTHRU", mpt_req->CDB[0]);
2222                 df = mpt_req->Control & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK;
2223                 if (df != MPI_SCSIIO_CONTROL_NODATATRANSFER) {
2224                         mpt_prtc(mpt, "(%s %u byte%s ",
2225                             (df == MPI_SCSIIO_CONTROL_READ)?
2226                             "read" : "write",  csio->dxfer_len,
2227                             (csio->dxfer_len == 1)? ")" : "s)");
2228                 }
2229                 mpt_prtc(mpt, "tgt %u lun %u req %p:%u\n", tgt,
2230                     ccb->ccb_h.target_lun, req, req->serno);
2231         }
2232
2233         /*
2234          * If we have any data to send with this command map it into bus space.
2235          */
2236         if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2237                 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) {
2238                         /*
2239                          * We've been given a pointer to a single buffer.
2240                          */
2241                         if ((ccbh->flags & CAM_DATA_PHYS) == 0) {
2242                                 /*
2243                                  * Virtual address that needs to translated into
2244                                  * one or more physical address ranges.
2245                                  */
2246                                 int error;
2247                                 int s = splsoftvm();
2248                                 error = bus_dmamap_load(mpt->buffer_dmat,
2249                                     req->dmap, csio->data_ptr, csio->dxfer_len,
2250                                     cb, req, 0);
2251                                 splx(s);
2252                                 if (error == EINPROGRESS) {
2253                                         /*
2254                                          * So as to maintain ordering,
2255                                          * freeze the controller queue
2256                                          * until our mapping is
2257                                          * returned.
2258                                          */
2259                                         xpt_freeze_simq(mpt->sim, 1);
2260                                         ccbh->status |= CAM_RELEASE_SIMQ;
2261                                 }
2262                         } else {
2263                                 /*
2264                                  * We have been given a pointer to single
2265                                  * physical buffer.
2266                                  */
2267                                 struct bus_dma_segment seg;
2268                                 seg.ds_addr =
2269                                     (bus_addr_t)(vm_offset_t)csio->data_ptr;
2270                                 seg.ds_len = csio->dxfer_len;
2271                                 (*cb)(req, &seg, 1, 0);
2272                         }
2273                 } else {
2274                         /*
2275                          * We have been given a list of addresses.
2276                          * This case could be easily supported but they are not
2277                          * currently generated by the CAM subsystem so there
2278                          * is no point in wasting the time right now.
2279                          */
2280                         struct bus_dma_segment *segs;
2281                         if ((ccbh->flags & CAM_SG_LIST_PHYS) == 0) {
2282                                 (*cb)(req, NULL, 0, EFAULT);
2283                         } else {
2284                                 /* Just use the segments provided */
2285                                 segs = (struct bus_dma_segment *)csio->data_ptr;
2286                                 (*cb)(req, segs, csio->sglist_cnt, 0);
2287                         }
2288                 }
2289         } else {
2290                 (*cb)(req, NULL, 0, 0);
2291         }
2292 }
2293
2294 static int
2295 mpt_bus_reset(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun,
2296     int sleep_ok)
2297 {
2298         int   error;
2299         uint16_t status;
2300         uint8_t response;
2301
2302         error = mpt_scsi_send_tmf(mpt,
2303             (tgt != CAM_TARGET_WILDCARD || lun != CAM_LUN_WILDCARD) ?
2304             MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET :
2305             MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
2306             mpt->is_fc ? MPI_SCSITASKMGMT_MSGFLAGS_LIP_RESET_OPTION : 0,
2307             0,  /* XXX How do I get the channel ID? */
2308             tgt != CAM_TARGET_WILDCARD ? tgt : 0,
2309             lun != CAM_LUN_WILDCARD ? lun : 0,
2310             0, sleep_ok);
2311
2312         if (error != 0) {
2313                 /*
2314                  * mpt_scsi_send_tmf hard resets on failure, so no
2315                  * need to do so here.
2316                  */
2317                 mpt_prt(mpt,
2318                     "mpt_bus_reset: mpt_scsi_send_tmf returned %d\n", error);
2319                 return (EIO);
2320         }
2321
2322         /* Wait for bus reset to be processed by the IOC. */
2323         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
2324             REQ_STATE_DONE, sleep_ok, 5000);
2325
2326         status = le16toh(mpt->tmf_req->IOCStatus);
2327         response = mpt->tmf_req->ResponseCode;
2328         mpt->tmf_req->state = REQ_STATE_FREE;
2329
2330         if (error) {
2331                 mpt_prt(mpt, "mpt_bus_reset: Reset timed-out. "
2332                     "Resetting controller.\n");
2333                 mpt_reset(mpt, TRUE);
2334                 return (ETIMEDOUT);
2335         }
2336
2337         if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
2338                 mpt_prt(mpt, "mpt_bus_reset: TMF IOC Status 0x%x. "
2339                     "Resetting controller.\n", status);
2340                 mpt_reset(mpt, TRUE);
2341                 return (EIO);
2342         }
2343
2344         if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
2345             response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
2346                 mpt_prt(mpt, "mpt_bus_reset: TMF Response 0x%x. "
2347                     "Resetting controller.\n", response);
2348                 mpt_reset(mpt, TRUE);
2349                 return (EIO);
2350         }
2351         return (0);
2352 }
2353
2354 static int
2355 mpt_fc_reset_link(struct mpt_softc *mpt, int dowait)
2356 {
2357         int r = 0;
2358         request_t *req;
2359         PTR_MSG_FC_PRIMITIVE_SEND_REQUEST fc;
2360
2361         req = mpt_get_request(mpt, FALSE);
2362         if (req == NULL) {
2363                 return (ENOMEM);
2364         }
2365         fc = req->req_vbuf;
2366         memset(fc, 0, sizeof(*fc));
2367         fc->SendFlags = MPI_FC_PRIM_SEND_FLAGS_RESET_LINK;
2368         fc->Function = MPI_FUNCTION_FC_PRIMITIVE_SEND;
2369         fc->MsgContext = htole32(req->index | fc_els_handler_id);
2370         mpt_send_cmd(mpt, req);
2371         if (dowait) {
2372                 r = mpt_wait_req(mpt, req, REQ_STATE_DONE,
2373                     REQ_STATE_DONE, FALSE, 60 * 1000);
2374                 if (r == 0) {
2375                         mpt_free_request(mpt, req);
2376                 }
2377         }
2378         return (r);
2379 }
2380
2381 static int
2382 mpt_cam_event(struct mpt_softc *mpt, request_t *req,
2383               MSG_EVENT_NOTIFY_REPLY *msg)
2384 {
2385         uint32_t data0, data1;
2386
2387         data0 = le32toh(msg->Data[0]);
2388         data1 = le32toh(msg->Data[1]);
2389         switch(msg->Event & 0xFF) {
2390         case MPI_EVENT_UNIT_ATTENTION:
2391                 mpt_prt(mpt, "UNIT ATTENTION: Bus: 0x%02x TargetID: 0x%02x\n",
2392                     (data0 >> 8) & 0xff, data0 & 0xff);
2393                 break;
2394
2395         case MPI_EVENT_IOC_BUS_RESET:
2396                 /* We generated a bus reset */
2397                 mpt_prt(mpt, "IOC Generated Bus Reset Port: %d\n",
2398                     (data0 >> 8) & 0xff);
2399                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2400                 break;
2401
2402         case MPI_EVENT_EXT_BUS_RESET:
2403                 /* Someone else generated a bus reset */
2404                 mpt_prt(mpt, "External Bus Reset Detected\n");
2405                 /*
2406                  * These replies don't return EventData like the MPI
2407                  * spec says they do
2408                  */
2409                 xpt_async(AC_BUS_RESET, mpt->path, NULL);
2410                 break;
2411
2412         case MPI_EVENT_RESCAN:
2413 #if __FreeBSD_version >= 600000
2414         {
2415                 union ccb *ccb;
2416                 uint32_t pathid;
2417                 /*
2418                  * In general this means a device has been added to the loop.
2419                  */
2420                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2421                 if (mpt->ready == 0) {
2422                         break;
2423                 }
2424                 if (mpt->phydisk_sim) {
2425                         pathid = cam_sim_path(mpt->phydisk_sim);
2426                 } else {
2427                         pathid = cam_sim_path(mpt->sim);
2428                 }
2429                 MPTLOCK_2_CAMLOCK(mpt);
2430                 /*
2431                  * Allocate a CCB, create a wildcard path for this bus,
2432                  * and schedule a rescan.
2433                  */
2434                 ccb = xpt_alloc_ccb_nowait();
2435                 if (ccb == NULL) {
2436                         mpt_prt(mpt, "unable to alloc CCB for rescan\n");
2437                         CAMLOCK_2_MPTLOCK(mpt);
2438                         break;
2439                 }
2440
2441                 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, pathid,
2442                     CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2443                         CAMLOCK_2_MPTLOCK(mpt);
2444                         mpt_prt(mpt, "unable to create path for rescan\n");
2445                         xpt_free_ccb(ccb);
2446                         break;
2447                 }
2448                 xpt_rescan(ccb);
2449                 CAMLOCK_2_MPTLOCK(mpt);
2450                 break;
2451         }
2452 #else
2453                 mpt_prt(mpt, "Rescan Port: %d\n", (data0 >> 8) & 0xff);
2454                 break;
2455 #endif
2456         case MPI_EVENT_LINK_STATUS_CHANGE:
2457                 mpt_prt(mpt, "Port %d: LinkState: %s\n",
2458                     (data1 >> 8) & 0xff,
2459                     ((data0 & 0xff) == 0)?  "Failed" : "Active");
2460                 break;
2461
2462         case MPI_EVENT_LOOP_STATE_CHANGE:
2463                 switch ((data0 >> 16) & 0xff) {
2464                 case 0x01:
2465                         mpt_prt(mpt,
2466                             "Port 0x%x: FC LinkEvent: LIP(%02x,%02x) "
2467                             "(Loop Initialization)\n",
2468                             (data1 >> 8) & 0xff,
2469                             (data0 >> 8) & 0xff,
2470                             (data0     ) & 0xff);
2471                         switch ((data0 >> 8) & 0xff) {
2472                         case 0xF7:
2473                                 if ((data0 & 0xff) == 0xF7) {
2474                                         mpt_prt(mpt, "Device needs AL_PA\n");
2475                                 } else {
2476                                         mpt_prt(mpt, "Device %02x doesn't like "
2477                                             "FC performance\n",
2478                                             data0 & 0xFF);
2479                                 }
2480                                 break;
2481                         case 0xF8:
2482                                 if ((data0 & 0xff) == 0xF7) {
2483                                         mpt_prt(mpt, "Device had loop failure "
2484                                             "at its receiver prior to acquiring"
2485                                             " AL_PA\n");
2486                                 } else {
2487                                         mpt_prt(mpt, "Device %02x detected loop"
2488                                             " failure at its receiver\n",
2489                                             data0 & 0xFF);
2490                                 }
2491                                 break;
2492                         default:
2493                                 mpt_prt(mpt, "Device %02x requests that device "
2494                                     "%02x reset itself\n",
2495                                     data0 & 0xFF,
2496                                     (data0 >> 8) & 0xFF);
2497                                 break;
2498                         }
2499                         break;
2500                 case 0x02:
2501                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2502                             "LPE(%02x,%02x) (Loop Port Enable)\n",
2503                             (data1 >> 8) & 0xff, /* Port */
2504                             (data0 >>  8) & 0xff, /* Character 3 */
2505                             (data0      ) & 0xff  /* Character 4 */);
2506                         break;
2507                 case 0x03:
2508                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: "
2509                             "LPB(%02x,%02x) (Loop Port Bypass)\n",
2510                             (data1 >> 8) & 0xff, /* Port */
2511                             (data0 >> 8) & 0xff, /* Character 3 */
2512                             (data0     ) & 0xff  /* Character 4 */);
2513                         break;
2514                 default:
2515                         mpt_prt(mpt, "Port 0x%x: FC LinkEvent: Unknown "
2516                             "FC event (%02x %02x %02x)\n",
2517                             (data1 >> 8) & 0xff, /* Port */
2518                             (data0 >> 16) & 0xff, /* Event */
2519                             (data0 >>  8) & 0xff, /* Character 3 */
2520                             (data0      ) & 0xff  /* Character 4 */);
2521                 }
2522                 break;
2523
2524         case MPI_EVENT_LOGOUT:
2525                 mpt_prt(mpt, "FC Logout Port: %d N_PortID: %02x\n",
2526                     (data1 >> 8) & 0xff, data0);
2527                 break;
2528         case MPI_EVENT_QUEUE_FULL:
2529         {
2530                 struct cam_sim *sim;
2531                 struct cam_path *tmppath;
2532                 struct ccb_relsim crs;
2533                 PTR_EVENT_DATA_QUEUE_FULL pqf;
2534                 lun_id_t lun_id;
2535
2536                 pqf = (PTR_EVENT_DATA_QUEUE_FULL)msg->Data;
2537                 pqf->CurrentDepth = le16toh(pqf->CurrentDepth);
2538                 mpt_prt(mpt, "QUEUE FULL EVENT: Bus 0x%02x Target 0x%02x Depth "
2539                     "%d\n", pqf->Bus, pqf->TargetID, pqf->CurrentDepth);
2540                 if (mpt->phydisk_sim) {
2541                         sim = mpt->phydisk_sim;
2542                 } else {
2543                         sim = mpt->sim;
2544                 }
2545                 MPTLOCK_2_CAMLOCK(mpt);
2546                 for (lun_id = 0; lun_id < MPT_MAX_LUNS; lun_id++) {
2547                         if (xpt_create_path(&tmppath, NULL, cam_sim_path(sim),
2548                             pqf->TargetID, lun_id) != CAM_REQ_CMP) {
2549                                 mpt_prt(mpt, "unable to create a path to send "
2550                                     "XPT_REL_SIMQ");
2551                                 CAMLOCK_2_MPTLOCK(mpt);
2552                                 break;
2553                         }
2554                         xpt_setup_ccb(&crs.ccb_h, tmppath, 5);
2555                         crs.ccb_h.func_code = XPT_REL_SIMQ;
2556                         crs.release_flags = RELSIM_ADJUST_OPENINGS;
2557                         crs.openings = pqf->CurrentDepth - 1;
2558                         xpt_action((union ccb *)&crs);
2559                         if (crs.ccb_h.status != CAM_REQ_CMP) {
2560                                 mpt_prt(mpt, "XPT_REL_SIMQ failed\n");
2561                         }
2562                         xpt_free_path(tmppath);
2563                 }
2564                 CAMLOCK_2_MPTLOCK(mpt);
2565                 break;
2566         }
2567         case MPI_EVENT_EVENT_CHANGE:
2568         case MPI_EVENT_INTEGRATED_RAID:
2569         case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
2570         case MPI_EVENT_SAS_SES:
2571                 break;
2572         default:
2573                 mpt_lprt(mpt, MPT_PRT_WARN, "mpt_cam_event: 0x%x\n",
2574                     msg->Event & 0xFF);
2575                 return (0);
2576         }
2577         return (1);
2578 }
2579
2580 /*
2581  * Reply path for all SCSI I/O requests, called from our
2582  * interrupt handler by extracting our handler index from
2583  * the MsgContext field of the reply from the IOC.
2584  *
2585  * This routine is optimized for the common case of a
2586  * completion without error.  All exception handling is
2587  * offloaded to non-inlined helper routines to minimize
2588  * cache footprint.
2589  */
2590 static int
2591 mpt_scsi_reply_handler(struct mpt_softc *mpt, request_t *req,
2592     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2593 {
2594         MSG_SCSI_IO_REQUEST *scsi_req;
2595         union ccb *ccb;
2596
2597         if (req->state == REQ_STATE_FREE) {
2598                 mpt_prt(mpt, "mpt_scsi_reply_handler: req already free\n");
2599                 return (TRUE);
2600         }
2601
2602         scsi_req = (MSG_SCSI_IO_REQUEST *)req->req_vbuf;
2603         ccb = req->ccb;
2604         if (ccb == NULL) {
2605                 mpt_prt(mpt, "mpt_scsi_reply_handler: req %p:%u with no ccb\n",
2606                     req, req->serno);
2607                 return (TRUE);
2608         }
2609
2610         mpt_req_untimeout(req, mpt_timeout, ccb);
2611         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2612
2613         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
2614                 bus_dmasync_op_t op;
2615
2616                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
2617                         op = BUS_DMASYNC_POSTREAD;
2618                 else
2619                         op = BUS_DMASYNC_POSTWRITE;
2620                 bus_dmamap_sync(mpt->buffer_dmat, req->dmap, op);
2621                 bus_dmamap_unload(mpt->buffer_dmat, req->dmap);
2622         }
2623
2624         if (reply_frame == NULL) {
2625                 /*
2626                  * Context only reply, completion without error status.
2627                  */
2628                 ccb->csio.resid = 0;
2629                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
2630                 ccb->csio.scsi_status = SCSI_STATUS_OK;
2631         } else {
2632                 mpt_scsi_reply_frame_handler(mpt, req, reply_frame);
2633         }
2634
2635         if (mpt->outofbeer) {
2636                 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
2637                 mpt->outofbeer = 0;
2638                 mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
2639         }
2640         if (scsi_req->CDB[0] == INQUIRY && (scsi_req->CDB[1] & SI_EVPD) == 0) {
2641                 struct scsi_inquiry_data *iq =
2642                     (struct scsi_inquiry_data *)ccb->csio.data_ptr;
2643                 if (scsi_req->Function ==
2644                     MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
2645                         /*
2646                          * Fake out the device type so that only the
2647                          * pass-thru device will attach.
2648                          */
2649                         iq->device &= ~0x1F;
2650                         iq->device |= T_NODEVICE;
2651                 }
2652         }
2653         if (mpt->verbose == MPT_PRT_DEBUG) {
2654                 mpt_prt(mpt, "mpt_scsi_reply_handler: %p:%u complete\n",
2655                     req, req->serno);
2656         }
2657         KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
2658         MPTLOCK_2_CAMLOCK(mpt);
2659         xpt_done(ccb);
2660         CAMLOCK_2_MPTLOCK(mpt);
2661         if ((req->state & REQ_STATE_TIMEDOUT) == 0) {
2662                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2663         } else {
2664                 mpt_prt(mpt, "completing timedout/aborted req %p:%u\n",
2665                     req, req->serno);
2666                 TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
2667         }
2668         KASSERT((req->state & REQ_STATE_NEED_WAKEUP) == 0,
2669             ("CCB req needed wakeup"));
2670 #ifdef  INVARIANTS
2671         mpt_req_not_spcl(mpt, req, "mpt_scsi_reply_handler", __LINE__);
2672 #endif
2673         mpt_free_request(mpt, req);
2674         return (TRUE);
2675 }
2676
2677 static int
2678 mpt_scsi_tmf_reply_handler(struct mpt_softc *mpt, request_t *req,
2679     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2680 {
2681         MSG_SCSI_TASK_MGMT_REPLY *tmf_reply;
2682
2683         KASSERT(req == mpt->tmf_req, ("TMF Reply not using mpt->tmf_req"));
2684 #ifdef  INVARIANTS
2685         mpt_req_not_spcl(mpt, req, "mpt_scsi_tmf_reply_handler", __LINE__);
2686 #endif
2687         tmf_reply = (MSG_SCSI_TASK_MGMT_REPLY *)reply_frame;
2688         /* Record IOC Status and Response Code of TMF for any waiters. */
2689         req->IOCStatus = le16toh(tmf_reply->IOCStatus);
2690         req->ResponseCode = tmf_reply->ResponseCode;
2691
2692         mpt_lprt(mpt, MPT_PRT_DEBUG, "TMF complete: req %p:%u status 0x%x\n",
2693             req, req->serno, le16toh(tmf_reply->IOCStatus));
2694         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2695         if ((req->state & REQ_STATE_NEED_WAKEUP) != 0) {
2696                 req->state |= REQ_STATE_DONE;
2697                 wakeup(req);
2698         } else {
2699                 mpt->tmf_req->state = REQ_STATE_FREE;
2700         }
2701         return (TRUE);
2702 }
2703
2704 /*
2705  * XXX: Move to definitions file
2706  */
2707 #define ELS     0x22
2708 #define FC4LS   0x32
2709 #define ABTS    0x81
2710 #define BA_ACC  0x84
2711
2712 #define LS_RJT  0x01
2713 #define LS_ACC  0x02
2714 #define PLOGI   0x03
2715 #define LOGO    0x05
2716 #define SRR     0x14
2717 #define PRLI    0x20
2718 #define PRLO    0x21
2719 #define ADISC   0x52
2720 #define RSCN    0x61
2721
2722 static void
2723 mpt_fc_els_send_response(struct mpt_softc *mpt, request_t *req,
2724     PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp, U8 length)
2725 {
2726         uint32_t fl;
2727         MSG_LINK_SERVICE_RSP_REQUEST tmp;
2728         PTR_MSG_LINK_SERVICE_RSP_REQUEST rsp;
2729
2730         /*
2731          * We are going to reuse the ELS request to send this response back.
2732          */
2733         rsp = &tmp;
2734         memset(rsp, 0, sizeof(*rsp));
2735
2736 #ifdef  USE_IMMEDIATE_LINK_DATA
2737         /*
2738          * Apparently the IMMEDIATE stuff doesn't seem to work.
2739          */
2740         rsp->RspFlags = LINK_SERVICE_RSP_FLAGS_IMMEDIATE;
2741 #endif
2742         rsp->RspLength = length;
2743         rsp->Function = MPI_FUNCTION_FC_LINK_SRVC_RSP;
2744         rsp->MsgContext = htole32(req->index | fc_els_handler_id);
2745
2746         /*
2747          * Copy over information from the original reply frame to
2748          * it's correct place in the response.
2749          */
2750         memcpy((U8 *)rsp + 0x0c, (U8 *)rp + 0x1c, 24);
2751
2752         /*
2753          * And now copy back the temporary area to the original frame.
2754          */
2755         memcpy(req->req_vbuf, rsp, sizeof (MSG_LINK_SERVICE_RSP_REQUEST));
2756         rsp = req->req_vbuf;
2757
2758 #ifdef  USE_IMMEDIATE_LINK_DATA
2759         memcpy((U8 *)&rsp->SGL, &((U8 *)req->req_vbuf)[MPT_RQSL(mpt)], length);
2760 #else
2761 {
2762         PTR_SGE_SIMPLE32 se = (PTR_SGE_SIMPLE32) &rsp->SGL;
2763         bus_addr_t paddr = req->req_pbuf;
2764         paddr += MPT_RQSL(mpt);
2765
2766         fl =
2767                 MPI_SGE_FLAGS_HOST_TO_IOC       |
2768                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
2769                 MPI_SGE_FLAGS_LAST_ELEMENT      |
2770                 MPI_SGE_FLAGS_END_OF_LIST       |
2771                 MPI_SGE_FLAGS_END_OF_BUFFER;
2772         fl <<= MPI_SGE_FLAGS_SHIFT;
2773         fl |= (length);
2774         se->FlagsLength = htole32(fl);
2775         se->Address = htole32((uint32_t) paddr);
2776 }
2777 #endif
2778
2779         /*
2780          * Send it on...
2781          */
2782         mpt_send_cmd(mpt, req);
2783 }
2784
2785 static int
2786 mpt_fc_els_reply_handler(struct mpt_softc *mpt, request_t *req,
2787     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
2788 {
2789         PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY rp =
2790             (PTR_MSG_LINK_SERVICE_BUFFER_POST_REPLY) reply_frame;
2791         U8 rctl;
2792         U8 type;
2793         U8 cmd;
2794         U16 status = le16toh(reply_frame->IOCStatus);
2795         U32 *elsbuf;
2796         int ioindex;
2797         int do_refresh = TRUE;
2798
2799 #ifdef  INVARIANTS
2800         KASSERT(mpt_req_on_free_list(mpt, req) == 0,
2801             ("fc_els_reply_handler: req %p:%u for function %x on freelist!",
2802             req, req->serno, rp->Function));
2803         if (rp->Function != MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2804                 mpt_req_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2805         } else {
2806                 mpt_req_not_spcl(mpt, req, "fc_els_reply_handler", __LINE__);
2807         }
2808 #endif
2809         mpt_lprt(mpt, MPT_PRT_DEBUG,
2810             "FC_ELS Complete: req %p:%u, reply %p function %x\n",
2811             req, req->serno, reply_frame, reply_frame->Function);
2812
2813         if  (status != MPI_IOCSTATUS_SUCCESS) {
2814                 mpt_prt(mpt, "ELS REPLY STATUS 0x%x for Function %x\n",
2815                     status, reply_frame->Function);
2816                 if (status == MPI_IOCSTATUS_INVALID_STATE) {
2817                         /*
2818                          * XXX: to get around shutdown issue
2819                          */
2820                         mpt->disabled = 1;
2821                         return (TRUE);
2822                 }
2823                 return (TRUE);
2824         }
2825
2826         /*
2827          * If the function of a link service response, we recycle the
2828          * response to be a refresh for a new link service request.
2829          *
2830          * The request pointer is bogus in this case and we have to fetch
2831          * it based upon the TransactionContext.
2832          */
2833         if (rp->Function == MPI_FUNCTION_FC_LINK_SRVC_RSP) {
2834                 /* Freddie Uncle Charlie Katie */
2835                 /* We don't get the IOINDEX as part of the Link Svc Rsp */
2836                 for (ioindex = 0; ioindex < mpt->els_cmds_allocated; ioindex++)
2837                         if (mpt->els_cmd_ptrs[ioindex] == req) {
2838                                 break;
2839                         }
2840
2841                 KASSERT(ioindex < mpt->els_cmds_allocated,
2842                     ("can't find my mommie!"));
2843
2844                 /* remove from active list as we're going to re-post it */
2845                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2846                 req->state &= ~REQ_STATE_QUEUED;
2847                 req->state |= REQ_STATE_DONE;
2848                 mpt_fc_post_els(mpt, req, ioindex);
2849                 return (TRUE);
2850         }
2851
2852         if (rp->Function == MPI_FUNCTION_FC_PRIMITIVE_SEND) {
2853                 /* remove from active list as we're done */
2854                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2855                 req->state &= ~REQ_STATE_QUEUED;
2856                 req->state |= REQ_STATE_DONE;
2857                 if (req->state & REQ_STATE_TIMEDOUT) {
2858                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2859                             "Sync Primitive Send Completed After Timeout\n");
2860                         mpt_free_request(mpt, req);
2861                 } else if ((req->state & REQ_STATE_NEED_WAKEUP) == 0) {
2862                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2863                             "Async Primitive Send Complete\n");
2864                         mpt_free_request(mpt, req);
2865                 } else {
2866                         mpt_lprt(mpt, MPT_PRT_DEBUG,
2867                             "Sync Primitive Send Complete- Waking Waiter\n");
2868                         wakeup(req);
2869                 }
2870                 return (TRUE);
2871         }
2872
2873         if (rp->Function != MPI_FUNCTION_FC_LINK_SRVC_BUF_POST) {
2874                 mpt_prt(mpt, "unexpected ELS_REPLY: Function 0x%x Flags %x "
2875                     "Length %d Message Flags %x\n", rp->Function, rp->Flags,
2876                     rp->MsgLength, rp->MsgFlags);
2877                 return (TRUE);
2878         }
2879
2880         if (rp->MsgLength <= 5) {
2881                 /*
2882                  * This is just a ack of an original ELS buffer post
2883                  */
2884                 mpt_lprt(mpt, MPT_PRT_DEBUG,
2885                     "RECV'd ACK of FC_ELS buf post %p:%u\n", req, req->serno);
2886                 return (TRUE);
2887         }
2888
2889
2890         rctl = (le32toh(rp->Rctl_Did) & MPI_FC_RCTL_MASK) >> MPI_FC_RCTL_SHIFT;
2891         type = (le32toh(rp->Type_Fctl) & MPI_FC_TYPE_MASK) >> MPI_FC_TYPE_SHIFT;
2892
2893         elsbuf = &((U32 *)req->req_vbuf)[MPT_RQSL(mpt)/sizeof (U32)];
2894         cmd = be32toh(elsbuf[0]) >> 24;
2895
2896         if (rp->Flags & MPI_LS_BUF_POST_REPLY_FLAG_NO_RSP_NEEDED) {
2897                 mpt_lprt(mpt, MPT_PRT_ALWAYS, "ELS_REPLY: response unneeded\n");
2898                 return (TRUE);
2899         }
2900
2901         ioindex = le32toh(rp->TransactionContext);
2902         req = mpt->els_cmd_ptrs[ioindex];
2903
2904         if (rctl == ELS && type == 1) {
2905                 switch (cmd) {
2906                 case PRLI:
2907                         /*
2908                          * Send back a PRLI ACC
2909                          */
2910                         mpt_prt(mpt, "PRLI from 0x%08x%08x\n",
2911                             le32toh(rp->Wwn.PortNameHigh),
2912                             le32toh(rp->Wwn.PortNameLow));
2913                         elsbuf[0] = htobe32(0x02100014);
2914                         elsbuf[1] |= htobe32(0x00000100);
2915                         elsbuf[4] = htobe32(0x00000002);
2916                         if (mpt->role & MPT_ROLE_TARGET)
2917                                 elsbuf[4] |= htobe32(0x00000010);
2918                         if (mpt->role & MPT_ROLE_INITIATOR)
2919                                 elsbuf[4] |= htobe32(0x00000020);
2920                         /* remove from active list as we're done */
2921                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2922                         req->state &= ~REQ_STATE_QUEUED;
2923                         req->state |= REQ_STATE_DONE;
2924                         mpt_fc_els_send_response(mpt, req, rp, 20);
2925                         do_refresh = FALSE;
2926                         break;
2927                 case PRLO:
2928                         memset(elsbuf, 0, 5 * (sizeof (U32)));
2929                         elsbuf[0] = htobe32(0x02100014);
2930                         elsbuf[1] = htobe32(0x08000100);
2931                         mpt_prt(mpt, "PRLO from 0x%08x%08x\n",
2932                             le32toh(rp->Wwn.PortNameHigh),
2933                             le32toh(rp->Wwn.PortNameLow));
2934                         /* remove from active list as we're done */
2935                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
2936                         req->state &= ~REQ_STATE_QUEUED;
2937                         req->state |= REQ_STATE_DONE;
2938                         mpt_fc_els_send_response(mpt, req, rp, 20);
2939                         do_refresh = FALSE;
2940                         break;
2941                 default:
2942                         mpt_prt(mpt, "ELS TYPE 1 COMMAND: %x\n", cmd);
2943                         break;
2944                 }
2945         } else if (rctl == ABTS && type == 0) {
2946                 uint16_t rx_id = le16toh(rp->Rxid);
2947                 uint16_t ox_id = le16toh(rp->Oxid);
2948                 request_t *tgt_req = NULL;
2949
2950                 mpt_prt(mpt,
2951                     "ELS: ABTS OX_ID 0x%x RX_ID 0x%x from 0x%08x%08x\n",
2952                     ox_id, rx_id, le32toh(rp->Wwn.PortNameHigh),
2953                     le32toh(rp->Wwn.PortNameLow));
2954                 if (rx_id >= mpt->mpt_max_tgtcmds) {
2955                         mpt_prt(mpt, "Bad RX_ID 0x%x\n", rx_id);
2956                 } else if (mpt->tgt_cmd_ptrs == NULL) {
2957                         mpt_prt(mpt, "No TGT CMD PTRS\n");
2958                 } else {
2959                         tgt_req = mpt->tgt_cmd_ptrs[rx_id];
2960                 }
2961                 if (tgt_req) {
2962                         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, tgt_req);
2963                         union ccb *ccb = tgt->ccb;
2964                         uint32_t ct_id;
2965
2966                         /*
2967                          * Check to make sure we have the correct command
2968                          * The reply descriptor in the target state should
2969                          * should contain an IoIndex that should match the
2970                          * RX_ID.
2971                          *
2972                          * It'd be nice to have OX_ID to crosscheck with
2973                          * as well.
2974                          */
2975                         ct_id = GET_IO_INDEX(tgt->reply_desc);
2976
2977                         if (ct_id != rx_id) {
2978                                 mpt_lprt(mpt, MPT_PRT_ERROR, "ABORT Mismatch: "
2979                                     "RX_ID received=0x%x; RX_ID in cmd=0x%x\n",
2980                                     rx_id, ct_id);
2981                                 goto skip;
2982                         }
2983
2984                         ccb = tgt->ccb;
2985                         if (ccb) {
2986                                 mpt_prt(mpt,
2987                                     "CCB (%p): lun %u flags %x status %x\n",
2988                                     ccb, ccb->ccb_h.target_lun,
2989                                     ccb->ccb_h.flags, ccb->ccb_h.status);
2990                         }
2991                         mpt_prt(mpt, "target state 0x%x resid %u xfrd %u rpwrd "
2992                             "%x nxfers %x\n", tgt->state,
2993                             tgt->resid, tgt->bytes_xfered, tgt->reply_desc,
2994                             tgt->nxfers);
2995   skip:
2996                         if (mpt_abort_target_cmd(mpt, tgt_req)) {
2997                                 mpt_prt(mpt, "unable to start TargetAbort\n");
2998                         }
2999                 } else {
3000                         mpt_prt(mpt, "no back pointer for RX_ID 0x%x\n", rx_id);
3001                 }
3002                 memset(elsbuf, 0, 5 * (sizeof (U32)));
3003                 elsbuf[0] = htobe32(0);
3004                 elsbuf[1] = htobe32((ox_id << 16) | rx_id);
3005                 elsbuf[2] = htobe32(0x000ffff);
3006                 /*
3007                  * Dork with the reply frame so that the reponse to it
3008                  * will be correct.
3009                  */
3010                 rp->Rctl_Did += ((BA_ACC - ABTS) << MPI_FC_RCTL_SHIFT);
3011                 /* remove from active list as we're done */
3012                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3013                 req->state &= ~REQ_STATE_QUEUED;
3014                 req->state |= REQ_STATE_DONE;
3015                 mpt_fc_els_send_response(mpt, req, rp, 12);
3016                 do_refresh = FALSE;
3017         } else {
3018                 mpt_prt(mpt, "ELS: RCTL %x TYPE %x CMD %x\n", rctl, type, cmd);
3019         }
3020         if (do_refresh == TRUE) {
3021                 /* remove from active list as we're done */
3022                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
3023                 req->state &= ~REQ_STATE_QUEUED;
3024                 req->state |= REQ_STATE_DONE;
3025                 mpt_fc_post_els(mpt, req, ioindex);
3026         }
3027         return (TRUE);
3028 }
3029
3030 /*
3031  * Clean up all SCSI Initiator personality state in response
3032  * to a controller reset.
3033  */
3034 static void
3035 mpt_cam_ioc_reset(struct mpt_softc *mpt, int type)
3036 {
3037         /*
3038          * The pending list is already run down by
3039          * the generic handler.  Perform the same
3040          * operation on the timed out request list.
3041          */
3042         mpt_complete_request_chain(mpt, &mpt->request_timeout_list,
3043                                    MPI_IOCSTATUS_INVALID_STATE);
3044
3045         /*
3046          * XXX: We need to repost ELS and Target Command Buffers?
3047          */
3048
3049         /*
3050          * Inform the XPT that a bus reset has occurred.
3051          */
3052         xpt_async(AC_BUS_RESET, mpt->path, NULL);
3053 }
3054
3055 /*
3056  * Parse additional completion information in the reply
3057  * frame for SCSI I/O requests.
3058  */
3059 static int
3060 mpt_scsi_reply_frame_handler(struct mpt_softc *mpt, request_t *req,
3061                              MSG_DEFAULT_REPLY *reply_frame)
3062 {
3063         union ccb *ccb;
3064         MSG_SCSI_IO_REPLY *scsi_io_reply;
3065         u_int ioc_status;
3066         u_int sstate;
3067
3068         MPT_DUMP_REPLY_FRAME(mpt, reply_frame);
3069         KASSERT(reply_frame->Function == MPI_FUNCTION_SCSI_IO_REQUEST
3070              || reply_frame->Function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH,
3071                 ("MPT SCSI I/O Handler called with incorrect reply type"));
3072         KASSERT((reply_frame->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY) == 0,
3073                 ("MPT SCSI I/O Handler called with continuation reply"));
3074
3075         scsi_io_reply = (MSG_SCSI_IO_REPLY *)reply_frame;
3076         ioc_status = le16toh(scsi_io_reply->IOCStatus);
3077         ioc_status &= MPI_IOCSTATUS_MASK;
3078         sstate = scsi_io_reply->SCSIState;
3079
3080         ccb = req->ccb;
3081         ccb->csio.resid =
3082             ccb->csio.dxfer_len - le32toh(scsi_io_reply->TransferCount);
3083
3084         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_VALID) != 0
3085          && (ccb->ccb_h.flags & (CAM_SENSE_PHYS | CAM_SENSE_PTR)) == 0) {
3086                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
3087                 ccb->csio.sense_resid =
3088                     ccb->csio.sense_len - le32toh(scsi_io_reply->SenseCount);
3089                 bcopy(req->sense_vbuf, &ccb->csio.sense_data,
3090                     min(ccb->csio.sense_len,
3091                     le32toh(scsi_io_reply->SenseCount)));
3092         }
3093
3094         if ((sstate & MPI_SCSI_STATE_QUEUE_TAG_REJECTED) != 0) {
3095                 /*
3096                  * Tag messages rejected, but non-tagged retry
3097                  * was successful.
3098 XXXX
3099                 mpt_set_tags(mpt, devinfo, MPT_QUEUE_NONE);
3100                  */
3101         }
3102
3103         switch(ioc_status) {
3104         case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3105                 /*
3106                  * XXX
3107                  * Linux driver indicates that a zero
3108                  * transfer length with this error code
3109                  * indicates a CRC error.
3110                  *
3111                  * No need to swap the bytes for checking
3112                  * against zero.
3113                  */
3114                 if (scsi_io_reply->TransferCount == 0) {
3115                         mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3116                         break;
3117                 }
3118                 /* FALLTHROUGH */
3119         case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
3120         case MPI_IOCSTATUS_SUCCESS:
3121         case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:
3122                 if ((sstate & MPI_SCSI_STATE_NO_SCSI_STATUS) != 0) {
3123                         /*
3124                          * Status was never returned for this transaction.
3125                          */
3126                         mpt_set_ccb_status(ccb, CAM_UNEXP_BUSFREE);
3127                 } else if (scsi_io_reply->SCSIStatus != SCSI_STATUS_OK) {
3128                         ccb->csio.scsi_status = scsi_io_reply->SCSIStatus;
3129                         mpt_set_ccb_status(ccb, CAM_SCSI_STATUS_ERROR);
3130                         if ((sstate & MPI_SCSI_STATE_AUTOSENSE_FAILED) != 0)
3131                                 mpt_set_ccb_status(ccb, CAM_AUTOSENSE_FAIL);
3132                 } else if ((sstate & MPI_SCSI_STATE_RESPONSE_INFO_VALID) != 0) {
3133
3134                         /* XXX Handle SPI-Packet and FCP-2 reponse info. */
3135                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3136                 } else
3137                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3138                 break;
3139         case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
3140                 mpt_set_ccb_status(ccb, CAM_DATA_RUN_ERR);
3141                 break;
3142         case MPI_IOCSTATUS_SCSI_IO_DATA_ERROR:
3143                 mpt_set_ccb_status(ccb, CAM_UNCOR_PARITY);
3144                 break;
3145         case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3146                 /*
3147                  * Since selection timeouts and "device really not
3148                  * there" are grouped into this error code, report
3149                  * selection timeout.  Selection timeouts are
3150                  * typically retried before giving up on the device
3151                  * whereas "device not there" errors are considered
3152                  * unretryable.
3153                  */
3154                 mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3155                 break;
3156         case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3157                 mpt_set_ccb_status(ccb, CAM_SEQUENCE_FAIL);
3158                 break;
3159         case MPI_IOCSTATUS_SCSI_INVALID_BUS:
3160                 mpt_set_ccb_status(ccb, CAM_PATH_INVALID);
3161                 break;
3162         case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
3163                 mpt_set_ccb_status(ccb, CAM_TID_INVALID);
3164                 break;
3165         case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3166                 ccb->ccb_h.status = CAM_UA_TERMIO;
3167                 break;
3168         case MPI_IOCSTATUS_INVALID_STATE:
3169                 /*
3170                  * The IOC has been reset.  Emulate a bus reset.
3171                  */
3172                 /* FALLTHROUGH */
3173         case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
3174                 ccb->ccb_h.status = CAM_SCSI_BUS_RESET;
3175                 break;
3176         case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
3177         case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
3178                 /*
3179                  * Don't clobber any timeout status that has
3180                  * already been set for this transaction.  We
3181                  * want the SCSI layer to be able to differentiate
3182                  * between the command we aborted due to timeout
3183                  * and any innocent bystanders.
3184                  */
3185                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG)
3186                         break;
3187                 mpt_set_ccb_status(ccb, CAM_REQ_TERMIO);
3188                 break;
3189
3190         case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
3191                 mpt_set_ccb_status(ccb, CAM_RESRC_UNAVAIL);
3192                 break;
3193         case MPI_IOCSTATUS_BUSY:
3194                 mpt_set_ccb_status(ccb, CAM_BUSY);
3195                 break;
3196         case MPI_IOCSTATUS_INVALID_FUNCTION:
3197         case MPI_IOCSTATUS_INVALID_SGL:
3198         case MPI_IOCSTATUS_INTERNAL_ERROR:
3199         case MPI_IOCSTATUS_INVALID_FIELD:
3200         default:
3201                 /* XXX
3202                  * Some of the above may need to kick
3203                  * of a recovery action!!!!
3204                  */
3205                 ccb->ccb_h.status = CAM_UNREC_HBA_ERROR;
3206                 break;
3207         }
3208
3209         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3210                 mpt_freeze_ccb(ccb);
3211         }
3212
3213         return (TRUE);
3214 }
3215
3216 static void
3217 mpt_action(struct cam_sim *sim, union ccb *ccb)
3218 {
3219         struct mpt_softc *mpt;
3220         struct ccb_trans_settings *cts;
3221         target_id_t tgt;
3222         lun_id_t lun;
3223         int raid_passthru;
3224
3225         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("mpt_action\n"));
3226
3227         mpt = (struct mpt_softc *)cam_sim_softc(sim);
3228         raid_passthru = (sim == mpt->phydisk_sim);
3229         MPT_LOCK_ASSERT(mpt);
3230
3231         tgt = ccb->ccb_h.target_id;
3232         lun = ccb->ccb_h.target_lun;
3233         if (raid_passthru &&
3234             ccb->ccb_h.func_code != XPT_PATH_INQ &&
3235             ccb->ccb_h.func_code != XPT_RESET_BUS &&
3236             ccb->ccb_h.func_code != XPT_RESET_DEV) {
3237                 CAMLOCK_2_MPTLOCK(mpt);
3238                 if (mpt_map_physdisk(mpt, ccb, &tgt) != 0) {
3239                         MPTLOCK_2_CAMLOCK(mpt);
3240                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3241                         mpt_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
3242                         xpt_done(ccb);
3243                         return;
3244                 }
3245                 MPTLOCK_2_CAMLOCK(mpt);
3246         }
3247         ccb->ccb_h.ccb_mpt_ptr = mpt;
3248
3249         switch (ccb->ccb_h.func_code) {
3250         case XPT_SCSI_IO:       /* Execute the requested I/O operation */
3251                 /*
3252                  * Do a couple of preliminary checks...
3253                  */
3254                 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
3255                         if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
3256                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3257                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3258                                 break;
3259                         }
3260                 }
3261                 /* Max supported CDB length is 16 bytes */
3262                 /* XXX Unless we implement the new 32byte message type */
3263                 if (ccb->csio.cdb_len >
3264                     sizeof (((PTR_MSG_SCSI_IO_REQUEST)0)->CDB)) {
3265                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3266                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3267                         break;
3268                 }
3269 #ifdef  MPT_TEST_MULTIPATH
3270                 if (mpt->failure_id == ccb->ccb_h.target_id) {
3271                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3272                         mpt_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
3273                         break;
3274                 }
3275 #endif
3276                 ccb->csio.scsi_status = SCSI_STATUS_OK;
3277                 mpt_start(sim, ccb);
3278                 return;
3279
3280         case XPT_RESET_BUS:
3281                 if (raid_passthru) {
3282                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3283                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3284                         break;
3285                 }
3286         case XPT_RESET_DEV:
3287                 if (ccb->ccb_h.func_code == XPT_RESET_BUS) {
3288                         if (bootverbose) {
3289                                 xpt_print(ccb->ccb_h.path, "reset bus\n");
3290                         }
3291                 } else {
3292                         xpt_print(ccb->ccb_h.path, "reset device\n");
3293                 }
3294                 CAMLOCK_2_MPTLOCK(mpt);
3295                 (void) mpt_bus_reset(mpt, tgt, lun, FALSE);
3296                 MPTLOCK_2_CAMLOCK(mpt);
3297
3298                 /*
3299                  * mpt_bus_reset is always successful in that it
3300                  * will fall back to a hard reset should a bus
3301                  * reset attempt fail.
3302                  */
3303                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3304                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3305                 break;
3306
3307         case XPT_ABORT:
3308         {
3309                 union ccb *accb = ccb->cab.abort_ccb;
3310                 CAMLOCK_2_MPTLOCK(mpt);
3311                 switch (accb->ccb_h.func_code) {
3312                 case XPT_ACCEPT_TARGET_IO:
3313                 case XPT_IMMED_NOTIFY:
3314                         ccb->ccb_h.status = mpt_abort_target_ccb(mpt, ccb);
3315                         break;
3316                 case XPT_CONT_TARGET_IO:
3317                         mpt_prt(mpt, "cannot abort active CTIOs yet\n");
3318                         ccb->ccb_h.status = CAM_UA_ABORT;
3319                         break;
3320                 case XPT_SCSI_IO:
3321                         ccb->ccb_h.status = CAM_UA_ABORT;
3322                         break;
3323                 default:
3324                         ccb->ccb_h.status = CAM_REQ_INVALID;
3325                         break;
3326                 }
3327                 MPTLOCK_2_CAMLOCK(mpt);
3328                 break;
3329         }
3330
3331 #ifdef  CAM_NEW_TRAN_CODE
3332 #define IS_CURRENT_SETTINGS(c)  ((c)->type == CTS_TYPE_CURRENT_SETTINGS)
3333 #else
3334 #define IS_CURRENT_SETTINGS(c)  ((c)->flags & CCB_TRANS_CURRENT_SETTINGS)
3335 #endif
3336 #define DP_DISC_ENABLE  0x1
3337 #define DP_DISC_DISABL  0x2
3338 #define DP_DISC         (DP_DISC_ENABLE|DP_DISC_DISABL)
3339
3340 #define DP_TQING_ENABLE 0x4
3341 #define DP_TQING_DISABL 0x8
3342 #define DP_TQING        (DP_TQING_ENABLE|DP_TQING_DISABL)
3343
3344 #define DP_WIDE         0x10
3345 #define DP_NARROW       0x20
3346 #define DP_WIDTH        (DP_WIDE|DP_NARROW)
3347
3348 #define DP_SYNC         0x40
3349
3350         case XPT_SET_TRAN_SETTINGS:     /* Nexus Settings */
3351         {
3352 #ifdef  CAM_NEW_TRAN_CODE
3353                 struct ccb_trans_settings_scsi *scsi;
3354                 struct ccb_trans_settings_spi *spi;
3355 #endif
3356                 uint8_t dval;
3357                 u_int period;
3358                 u_int offset;
3359                 int i, j;
3360
3361                 cts = &ccb->cts;
3362
3363                 if (mpt->is_fc || mpt->is_sas) {
3364                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3365                         break;
3366                 }
3367
3368 #ifdef  CAM_NEW_TRAN_CODE
3369                 scsi = &cts->proto_specific.scsi;
3370                 spi = &cts->xport_specific.spi;
3371
3372                 /*
3373                  * We can be called just to valid transport and proto versions
3374                  */
3375                 if (scsi->valid == 0 && spi->valid == 0) {
3376                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3377                         break;
3378                 }
3379 #endif
3380
3381                 /*
3382                  * Skip attempting settings on RAID volume disks.
3383                  * Other devices on the bus get the normal treatment.
3384                  */
3385                 if (mpt->phydisk_sim && raid_passthru == 0 &&
3386                     mpt_is_raid_volume(mpt, tgt) != 0) {
3387                         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3388                             "no transfer settings for RAID vols\n");
3389                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3390                         break;
3391                 }
3392
3393                 i = mpt->mpt_port_page2.PortSettings &
3394                     MPI_SCSIPORTPAGE2_PORT_MASK_NEGO_MASTER_SETTINGS;
3395                 j = mpt->mpt_port_page2.PortFlags &
3396                     MPI_SCSIPORTPAGE2_PORT_FLAGS_DV_MASK;
3397                 if (i == MPI_SCSIPORTPAGE2_PORT_ALL_MASTER_SETTINGS &&
3398                     j == MPI_SCSIPORTPAGE2_PORT_FLAGS_OFF_DV) {
3399                         mpt_lprt(mpt, MPT_PRT_ALWAYS,
3400                             "honoring BIOS transfer negotiations\n");
3401                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3402                         break;
3403                 }
3404
3405                 dval = 0;
3406                 period = 0;
3407                 offset = 0;
3408
3409 #ifndef CAM_NEW_TRAN_CODE
3410                 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
3411                         dval |= (cts->flags & CCB_TRANS_DISC_ENB) ?
3412                             DP_DISC_ENABLE : DP_DISC_DISABL;
3413                 }
3414
3415                 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
3416                         dval |= (cts->flags & CCB_TRANS_TAG_ENB) ?
3417                             DP_TQING_ENABLE : DP_TQING_DISABL;
3418                 }
3419
3420                 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
3421                         dval |= cts->bus_width ? DP_WIDE : DP_NARROW;
3422                 }
3423
3424                 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) &&
3425                     (cts->valid & CCB_TRANS_SYNC_OFFSET_VALID)) {
3426                         dval |= DP_SYNC;
3427                         period = cts->sync_period;
3428                         offset = cts->sync_offset;
3429                 }
3430 #else
3431                 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
3432                         dval |= ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) ?
3433                             DP_DISC_ENABLE : DP_DISC_DISABL;
3434                 }
3435
3436                 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
3437                         dval |= ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) ?
3438                             DP_TQING_ENABLE : DP_TQING_DISABL;
3439                 }
3440
3441                 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
3442                         dval |= (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT) ?
3443                             DP_WIDE : DP_NARROW;
3444                 }
3445
3446                 if (spi->valid & CTS_SPI_VALID_SYNC_OFFSET) {
3447                         dval |= DP_SYNC;
3448                         offset = spi->sync_offset;
3449                 } else {
3450                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3451                             &mpt->mpt_dev_page1[tgt];
3452                         offset = ptr->RequestedParameters;
3453                         offset &= MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3454                         offset >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3455                 }
3456                 if (spi->valid & CTS_SPI_VALID_SYNC_RATE) {
3457                         dval |= DP_SYNC;
3458                         period = spi->sync_period;
3459                 } else {
3460                         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr =
3461                             &mpt->mpt_dev_page1[tgt];
3462                         period = ptr->RequestedParameters;
3463                         period &= MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3464                         period >>= MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3465                 }
3466 #endif
3467                 CAMLOCK_2_MPTLOCK(mpt);
3468                 if (dval & DP_DISC_ENABLE) {
3469                         mpt->mpt_disc_enable |= (1 << tgt);
3470                 } else if (dval & DP_DISC_DISABL) {
3471                         mpt->mpt_disc_enable &= ~(1 << tgt);
3472                 }
3473                 if (dval & DP_TQING_ENABLE) {
3474                         mpt->mpt_tag_enable |= (1 << tgt);
3475                 } else if (dval & DP_TQING_DISABL) {
3476                         mpt->mpt_tag_enable &= ~(1 << tgt);
3477                 }
3478                 if (dval & DP_WIDTH) {
3479                         mpt_setwidth(mpt, tgt, 1);
3480                 }
3481                 if (dval & DP_SYNC) {
3482                         mpt_setsync(mpt, tgt, period, offset);
3483                 }
3484                 if (dval == 0) {
3485                         MPTLOCK_2_CAMLOCK(mpt);
3486                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3487                         break;
3488                 }
3489                 mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3490                     "set [%d]: 0x%x period 0x%x offset %d\n",
3491                     tgt, dval, period, offset);
3492                 if (mpt_update_spi_config(mpt, tgt)) {
3493                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3494                 } else {
3495                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3496                 }
3497                 MPTLOCK_2_CAMLOCK(mpt);
3498                 break;
3499         }
3500         case XPT_GET_TRAN_SETTINGS:
3501         {
3502 #ifdef  CAM_NEW_TRAN_CODE
3503                 struct ccb_trans_settings_scsi *scsi;
3504                 cts = &ccb->cts;
3505                 cts->protocol = PROTO_SCSI;
3506                 if (mpt->is_fc) {
3507                         struct ccb_trans_settings_fc *fc =
3508                             &cts->xport_specific.fc;
3509                         cts->protocol_version = SCSI_REV_SPC;
3510                         cts->transport = XPORT_FC;
3511                         cts->transport_version = 0;
3512                         fc->valid = CTS_FC_VALID_SPEED;
3513                         fc->bitrate = 100000;
3514                 } else if (mpt->is_sas) {
3515                         struct ccb_trans_settings_sas *sas =
3516                             &cts->xport_specific.sas;
3517                         cts->protocol_version = SCSI_REV_SPC2;
3518                         cts->transport = XPORT_SAS;
3519                         cts->transport_version = 0;
3520                         sas->valid = CTS_SAS_VALID_SPEED;
3521                         sas->bitrate = 300000;
3522                 } else {
3523                         cts->protocol_version = SCSI_REV_2;
3524                         cts->transport = XPORT_SPI;
3525                         cts->transport_version = 2;
3526                         if (mpt_get_spi_settings(mpt, cts) != 0) {
3527                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3528                                 break;
3529                         }
3530                 }
3531                 scsi = &cts->proto_specific.scsi;
3532                 scsi->valid = CTS_SCSI_VALID_TQ;
3533                 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
3534 #else
3535                 cts = &ccb->cts;
3536                 if (mpt->is_fc) {
3537                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3538                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3539                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3540                 } else if (mpt->is_sas) {
3541                         cts->flags = CCB_TRANS_TAG_ENB | CCB_TRANS_DISC_ENB;
3542                         cts->valid = CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3543                         cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3544                 } else if (mpt_get_spi_settings(mpt, cts) != 0) {
3545                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3546                         break;
3547                 }
3548 #endif
3549                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3550                 break;
3551         }
3552         case XPT_CALC_GEOMETRY:
3553         {
3554                 struct ccb_calc_geometry *ccg;
3555
3556                 ccg = &ccb->ccg;
3557                 if (ccg->block_size == 0) {
3558                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
3559                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3560                         break;
3561                 }
3562                 mpt_calc_geometry(ccg, /*extended*/1);
3563                 KASSERT(ccb->ccb_h.status, ("zero ccb sts at %d\n", __LINE__));
3564                 break;
3565         }
3566         case XPT_PATH_INQ:              /* Path routing inquiry */
3567         {
3568                 struct ccb_pathinq *cpi = &ccb->cpi;
3569
3570                 cpi->version_num = 1;
3571                 cpi->target_sprt = 0;
3572                 cpi->hba_eng_cnt = 0;
3573                 cpi->max_target = mpt->port_facts[0].MaxDevices - 1;
3574                 /*
3575                  * FC cards report MAX_DEVICES of 512, but
3576                  * the MSG_SCSI_IO_REQUEST target id field
3577                  * is only 8 bits. Until we fix the driver
3578                  * to support 'channels' for bus overflow,
3579                  * just limit it.
3580                  */
3581                 if (cpi->max_target > 255) {
3582                         cpi->max_target = 255;
3583                 }
3584
3585                 /*
3586                  * VMware ESX reports > 16 devices and then dies when we probe.
3587                  */
3588                 if (mpt->is_spi && cpi->max_target > 15) {
3589                         cpi->max_target = 15;
3590                 }
3591                 if (mpt->is_spi)
3592                         cpi->max_lun = 7;
3593                 else
3594                         cpi->max_lun = MPT_MAX_LUNS;
3595                 cpi->initiator_id = mpt->mpt_ini_id;
3596                 cpi->bus_id = cam_sim_bus(sim);
3597
3598                 /*
3599                  * The base speed is the speed of the underlying connection.
3600                  */
3601 #ifdef  CAM_NEW_TRAN_CODE
3602                 cpi->protocol = PROTO_SCSI;
3603                 if (mpt->is_fc) {
3604                         cpi->hba_misc = PIM_NOBUSRESET;
3605                         cpi->base_transfer_speed = 100000;
3606                         cpi->hba_inquiry = PI_TAG_ABLE;
3607                         cpi->transport = XPORT_FC;
3608                         cpi->transport_version = 0;
3609                         cpi->protocol_version = SCSI_REV_SPC;
3610                 } else if (mpt->is_sas) {
3611                         cpi->hba_misc = PIM_NOBUSRESET;
3612                         cpi->base_transfer_speed = 300000;
3613                         cpi->hba_inquiry = PI_TAG_ABLE;
3614                         cpi->transport = XPORT_SAS;
3615                         cpi->transport_version = 0;
3616                         cpi->protocol_version = SCSI_REV_SPC2;
3617                 } else {
3618                         cpi->hba_misc = PIM_SEQSCAN;
3619                         cpi->base_transfer_speed = 3300;
3620                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3621                         cpi->transport = XPORT_SPI;
3622                         cpi->transport_version = 2;
3623                         cpi->protocol_version = SCSI_REV_2;
3624                 }
3625 #else
3626                 if (mpt->is_fc) {
3627                         cpi->hba_misc = PIM_NOBUSRESET;
3628                         cpi->base_transfer_speed = 100000;
3629                         cpi->hba_inquiry = PI_TAG_ABLE;
3630                 } else if (mpt->is_sas) {
3631                         cpi->hba_misc = PIM_NOBUSRESET;
3632                         cpi->base_transfer_speed = 300000;
3633                         cpi->hba_inquiry = PI_TAG_ABLE;
3634                 } else {
3635                         cpi->hba_misc = PIM_SEQSCAN;
3636                         cpi->base_transfer_speed = 3300;
3637                         cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
3638                 }
3639 #endif
3640
3641                 /*
3642                  * We give our fake RAID passhtru bus a width that is MaxVolumes
3643                  * wide and restrict it to one lun.
3644                  */
3645                 if (raid_passthru) {
3646                         cpi->max_target = mpt->ioc_page2->MaxPhysDisks - 1;
3647                         cpi->initiator_id = cpi->max_target + 1;
3648                         cpi->max_lun = 0;
3649                 }
3650
3651                 if ((mpt->role & MPT_ROLE_INITIATOR) == 0) {
3652                         cpi->hba_misc |= PIM_NOINITIATOR;
3653                 }
3654                 if (mpt->is_fc && (mpt->role & MPT_ROLE_TARGET)) {
3655                         cpi->target_sprt =
3656                             PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
3657                 } else {
3658                         cpi->target_sprt = 0;
3659                 }
3660                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
3661                 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
3662                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
3663                 cpi->unit_number = cam_sim_unit(sim);
3664                 cpi->ccb_h.status = CAM_REQ_CMP;
3665                 break;
3666         }
3667         case XPT_EN_LUN:                /* Enable LUN as a target */
3668         {
3669                 int result;
3670
3671                 CAMLOCK_2_MPTLOCK(mpt);
3672                 if (ccb->cel.enable)
3673                         result = mpt_enable_lun(mpt,
3674                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3675                 else
3676                         result = mpt_disable_lun(mpt,
3677                             ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
3678                 MPTLOCK_2_CAMLOCK(mpt);
3679                 if (result == 0) {
3680                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
3681                 } else {
3682                         mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
3683                 }
3684                 break;
3685         }
3686         case XPT_NOTIFY_ACK:            /* recycle notify ack */
3687         case XPT_IMMED_NOTIFY:          /* Add Immediate Notify Resource */
3688         case XPT_ACCEPT_TARGET_IO:      /* Add Accept Target IO Resource */
3689         {
3690                 tgt_resource_t *trtp;
3691                 lun_id_t lun = ccb->ccb_h.target_lun;
3692                 ccb->ccb_h.sim_priv.entries[0].field = 0;
3693                 ccb->ccb_h.sim_priv.entries[1].ptr = mpt;
3694                 ccb->ccb_h.flags = 0;
3695
3696                 if (lun == CAM_LUN_WILDCARD) {
3697                         if (ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
3698                                 mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3699                                 break;
3700                         }
3701                         trtp = &mpt->trt_wildcard;
3702                 } else if (lun >= MPT_MAX_LUNS) {
3703                         mpt_set_ccb_status(ccb, CAM_REQ_INVALID);
3704                         break;
3705                 } else {
3706                         trtp = &mpt->trt[lun];
3707                 }
3708                 CAMLOCK_2_MPTLOCK(mpt);
3709                 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
3710                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3711                             "Put FREE ATIO %p lun %d\n", ccb, lun);
3712                         STAILQ_INSERT_TAIL(&trtp->atios, &ccb->ccb_h,
3713                             sim_links.stqe);
3714                 } else if (ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
3715                         mpt_lprt(mpt, MPT_PRT_DEBUG1,
3716                             "Put FREE INOT lun %d\n", lun);
3717                         STAILQ_INSERT_TAIL(&trtp->inots, &ccb->ccb_h,
3718                             sim_links.stqe);
3719                 } else {
3720                         mpt_lprt(mpt, MPT_PRT_ALWAYS, "Got Notify ACK\n");
3721                 }
3722                 mpt_set_ccb_status(ccb, CAM_REQ_INPROG);
3723                 MPTLOCK_2_CAMLOCK(mpt);
3724                 return;
3725         }
3726         case XPT_CONT_TARGET_IO:
3727                 CAMLOCK_2_MPTLOCK(mpt);
3728                 mpt_target_start_io(mpt, ccb);
3729                 MPTLOCK_2_CAMLOCK(mpt);
3730                 return;
3731
3732         default:
3733                 ccb->ccb_h.status = CAM_REQ_INVALID;
3734                 break;
3735         }
3736         xpt_done(ccb);
3737 }
3738
3739 static int
3740 mpt_get_spi_settings(struct mpt_softc *mpt, struct ccb_trans_settings *cts)
3741 {
3742 #ifdef  CAM_NEW_TRAN_CODE
3743         struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
3744         struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
3745 #endif
3746         target_id_t tgt;
3747         uint32_t dval, pval, oval;
3748         int rv;
3749
3750         if (IS_CURRENT_SETTINGS(cts) == 0) {
3751                 tgt = cts->ccb_h.target_id;
3752         } else if (xpt_path_sim(cts->ccb_h.path) == mpt->phydisk_sim) {
3753                 if (mpt_map_physdisk(mpt, (union ccb *)cts, &tgt)) {
3754                         return (-1);
3755                 }
3756         } else {
3757                 tgt = cts->ccb_h.target_id;
3758         }
3759
3760         /*
3761          * We aren't looking at Port Page 2 BIOS settings here-
3762          * sometimes these have been known to be bogus XXX.
3763          *
3764          * For user settings, we pick the max from port page 0
3765          *
3766          * For current settings we read the current settings out from
3767          * device page 0 for that target.
3768          */
3769         if (IS_CURRENT_SETTINGS(cts)) {
3770                 CONFIG_PAGE_SCSI_DEVICE_0 tmp;
3771                 dval = 0;
3772
3773                 CAMLOCK_2_MPTLOCK(mpt);
3774                 tmp = mpt->mpt_dev_page0[tgt];
3775                 rv = mpt_read_cur_cfg_page(mpt, tgt, &tmp.Header,
3776                     sizeof(tmp), FALSE, 5000);
3777                 if (rv) {
3778                         MPTLOCK_2_CAMLOCK(mpt);
3779                         mpt_prt(mpt, "can't get tgt %d config page 0\n", tgt);
3780                         return (rv);
3781                 }
3782                 mpt2host_config_page_scsi_device_0(&tmp);
3783
3784                 MPTLOCK_2_CAMLOCK(mpt);
3785                 mpt_lprt(mpt, MPT_PRT_DEBUG,
3786                     "mpt_get_spi_settings[%d]: current NP %x Info %x\n", tgt,
3787                     tmp.NegotiatedParameters, tmp.Information);
3788                 dval |= (tmp.NegotiatedParameters & MPI_SCSIDEVPAGE0_NP_WIDE) ?
3789                     DP_WIDE : DP_NARROW;
3790                 dval |= (mpt->mpt_disc_enable & (1 << tgt)) ?
3791                     DP_DISC_ENABLE : DP_DISC_DISABL;
3792                 dval |= (mpt->mpt_tag_enable & (1 << tgt)) ?
3793                     DP_TQING_ENABLE : DP_TQING_DISABL;
3794                 oval = tmp.NegotiatedParameters;
3795                 oval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_OFFSET_MASK;
3796                 oval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_OFFSET;
3797                 pval = tmp.NegotiatedParameters;
3798                 pval &= MPI_SCSIDEVPAGE0_NP_NEG_SYNC_PERIOD_MASK;
3799                 pval >>= MPI_SCSIDEVPAGE0_NP_SHIFT_SYNC_PERIOD;
3800                 mpt->mpt_dev_page0[tgt] = tmp;
3801         } else {
3802                 dval = DP_WIDE|DP_DISC_ENABLE|DP_TQING_ENABLE|DP_SYNC;
3803                 oval = mpt->mpt_port_page0.Capabilities;
3804                 oval = MPI_SCSIPORTPAGE0_CAP_GET_MAX_SYNC_OFFSET(oval);
3805                 pval = mpt->mpt_port_page0.Capabilities;
3806                 pval = MPI_SCSIPORTPAGE0_CAP_GET_MIN_SYNC_PERIOD(pval);
3807         }
3808
3809 #ifndef CAM_NEW_TRAN_CODE
3810         cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
3811         cts->valid = 0;
3812         cts->sync_period = pval;
3813         cts->sync_offset = oval;
3814         cts->valid |= CCB_TRANS_SYNC_RATE_VALID;
3815         cts->valid |= CCB_TRANS_SYNC_OFFSET_VALID;
3816         cts->valid |= CCB_TRANS_BUS_WIDTH_VALID;
3817         if (dval & DP_WIDE) {
3818                 cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3819         } else {
3820                 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3821         }
3822         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3823                 cts->valid |= CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID;
3824                 if (dval & DP_DISC_ENABLE) {
3825                         cts->flags |= CCB_TRANS_DISC_ENB;
3826                 }
3827                 if (dval & DP_TQING_ENABLE) {
3828                         cts->flags |= CCB_TRANS_TAG_ENB;
3829                 }
3830         }
3831 #else
3832         spi->valid = 0;
3833         scsi->valid = 0;
3834         spi->flags = 0;
3835         scsi->flags = 0;
3836         spi->sync_offset = oval;
3837         spi->sync_period = pval;
3838         spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
3839         spi->valid |= CTS_SPI_VALID_SYNC_RATE;
3840         spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
3841         if (dval & DP_WIDE) {
3842                 spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
3843         } else {
3844                 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
3845         }
3846         if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
3847                 scsi->valid = CTS_SCSI_VALID_TQ;
3848                 if (dval & DP_TQING_ENABLE) {
3849                         scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
3850                 }
3851                 spi->valid |= CTS_SPI_VALID_DISC;
3852                 if (dval & DP_DISC_ENABLE) {
3853                         spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
3854                 }
3855         }
3856 #endif
3857         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3858             "mpt_get_spi_settings[%d]: %s flags 0x%x per 0x%x off=%d\n", tgt,
3859             IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM ", dval, pval, oval);
3860         return (0);
3861 }
3862
3863 static void
3864 mpt_setwidth(struct mpt_softc *mpt, int tgt, int onoff)
3865 {
3866         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3867
3868         ptr = &mpt->mpt_dev_page1[tgt];
3869         if (onoff) {
3870                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_WIDE;
3871         } else {
3872                 ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_WIDE;
3873         }
3874 }
3875
3876 static void
3877 mpt_setsync(struct mpt_softc *mpt, int tgt, int period, int offset)
3878 {
3879         PTR_CONFIG_PAGE_SCSI_DEVICE_1 ptr;
3880
3881         ptr = &mpt->mpt_dev_page1[tgt];
3882         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK;
3883         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK;
3884         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_DT;
3885         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_QAS;
3886         ptr->RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_IU;
3887         if (period == 0) {
3888                 return;
3889         }
3890         ptr->RequestedParameters |=
3891             period << MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;
3892         ptr->RequestedParameters |=
3893             offset << MPI_SCSIDEVPAGE1_RP_SHIFT_MAX_SYNC_OFFSET;
3894         if (period < 0xa) {
3895                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_DT;
3896         }
3897         if (period < 0x9) {
3898                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_QAS;
3899                 ptr->RequestedParameters |= MPI_SCSIDEVPAGE1_RP_IU;
3900         }
3901 }
3902
3903 static int
3904 mpt_update_spi_config(struct mpt_softc *mpt, int tgt)
3905 {
3906         CONFIG_PAGE_SCSI_DEVICE_1 tmp;
3907         int rv;
3908
3909         mpt_lprt(mpt, MPT_PRT_NEGOTIATION,
3910             "mpt_update_spi_config[%d].page1: Requested Params 0x%08x\n",
3911             tgt, mpt->mpt_dev_page1[tgt].RequestedParameters);
3912         tmp = mpt->mpt_dev_page1[tgt];
3913         host2mpt_config_page_scsi_device_1(&tmp);
3914         rv = mpt_write_cur_cfg_page(mpt, tgt,
3915             &tmp.Header, sizeof(tmp), FALSE, 5000);
3916         if (rv) {
3917                 mpt_prt(mpt, "mpt_update_spi_config: write cur page failed\n");
3918                 return (-1);
3919         }
3920         return (0);
3921 }
3922
3923 static void
3924 mpt_calc_geometry(struct ccb_calc_geometry *ccg, int extended)
3925 {
3926 #if __FreeBSD_version >= 500000
3927         cam_calc_geometry(ccg, extended);
3928 #else
3929         uint32_t size_mb;
3930         uint32_t secs_per_cylinder;
3931
3932         if (ccg->block_size == 0) {
3933                 ccg->ccb_h.status = CAM_REQ_INVALID;
3934                 return;
3935         }
3936         size_mb = ccg->volume_size / ((1024L * 1024L) / ccg->block_size);
3937         if (size_mb > 1024 && extended) {
3938                 ccg->heads = 255;
3939                 ccg->secs_per_track = 63;
3940         } else {
3941                 ccg->heads = 64;
3942                 ccg->secs_per_track = 32;
3943         }
3944         secs_per_cylinder = ccg->heads * ccg->secs_per_track;
3945         ccg->cylinders = ccg->volume_size / secs_per_cylinder;
3946         ccg->ccb_h.status = CAM_REQ_CMP;
3947 #endif
3948 }
3949
3950 /****************************** Timeout Recovery ******************************/
3951 static int
3952 mpt_spawn_recovery_thread(struct mpt_softc *mpt)
3953 {
3954         int error;
3955
3956         error = mpt_kthread_create(mpt_recovery_thread, mpt,
3957             &mpt->recovery_thread, /*flags*/0,
3958             /*altstack*/0, "mpt_recovery%d", mpt->unit);
3959         return (error);
3960 }
3961
3962 static void
3963 mpt_terminate_recovery_thread(struct mpt_softc *mpt)
3964 {
3965         if (mpt->recovery_thread == NULL) {
3966                 return;
3967         }
3968         mpt->shutdwn_recovery = 1;
3969         wakeup(mpt);
3970         /*
3971          * Sleep on a slightly different location
3972          * for this interlock just for added safety.
3973          */
3974         mpt_sleep(mpt, &mpt->recovery_thread, PUSER, "thtrm", 0);
3975 }
3976
3977 static void
3978 mpt_recovery_thread(void *arg)
3979 {
3980         struct mpt_softc *mpt;
3981
3982         mpt = (struct mpt_softc *)arg;
3983         MPT_LOCK(mpt);
3984         for (;;) {
3985                 if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
3986                         if (mpt->shutdwn_recovery == 0) {
3987                                 mpt_sleep(mpt, mpt, PUSER, "idle", 0);
3988                         }
3989                 }
3990                 if (mpt->shutdwn_recovery != 0) {
3991                         break;
3992                 }
3993                 mpt_recover_commands(mpt);
3994         }
3995         mpt->recovery_thread = NULL;
3996         wakeup(&mpt->recovery_thread);
3997         MPT_UNLOCK(mpt);
3998         mpt_kthread_exit(0);
3999 }
4000
4001 static int
4002 mpt_scsi_send_tmf(struct mpt_softc *mpt, u_int type, u_int flags,
4003     u_int channel, u_int target, u_int lun, u_int abort_ctx, int sleep_ok)
4004 {
4005         MSG_SCSI_TASK_MGMT *tmf_req;
4006         int                 error;
4007
4008         /*
4009          * Wait for any current TMF request to complete.
4010          * We're only allowed to issue one TMF at a time.
4011          */
4012         error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_FREE, REQ_STATE_FREE,
4013             sleep_ok, MPT_TMF_MAX_TIMEOUT);
4014         if (error != 0) {
4015                 mpt_reset(mpt, TRUE);
4016                 return (ETIMEDOUT);
4017         }
4018
4019         mpt_assign_serno(mpt, mpt->tmf_req);
4020         mpt->tmf_req->state = REQ_STATE_ALLOCATED|REQ_STATE_QUEUED;
4021
4022         tmf_req = (MSG_SCSI_TASK_MGMT *)mpt->tmf_req->req_vbuf;
4023         memset(tmf_req, 0, sizeof(*tmf_req));
4024         tmf_req->TargetID = target;
4025         tmf_req->Bus = channel;
4026         tmf_req->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
4027         tmf_req->TaskType = type;
4028         tmf_req->MsgFlags = flags;
4029         tmf_req->MsgContext =
4030             htole32(mpt->tmf_req->index | scsi_tmf_handler_id);
4031         if (lun > MPT_MAX_LUNS) {
4032                 tmf_req->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4033                 tmf_req->LUN[1] = lun & 0xff;
4034         } else {
4035                 tmf_req->LUN[1] = lun;
4036         }
4037         tmf_req->TaskMsgContext = abort_ctx;
4038
4039         mpt_lprt(mpt, MPT_PRT_DEBUG,
4040             "Issuing TMF %p:%u with MsgContext of 0x%x\n", mpt->tmf_req,
4041             mpt->tmf_req->serno, tmf_req->MsgContext);
4042         if (mpt->verbose > MPT_PRT_DEBUG) {
4043                 mpt_print_request(tmf_req);
4044         }
4045
4046         KASSERT(mpt_req_on_pending_list(mpt, mpt->tmf_req) == 0,
4047             ("mpt_scsi_send_tmf: tmf_req already on pending list"));
4048         TAILQ_INSERT_HEAD(&mpt->request_pending_list, mpt->tmf_req, links);
4049         error = mpt_send_handshake_cmd(mpt, sizeof(*tmf_req), tmf_req);
4050         if (error != MPT_OK) {
4051                 TAILQ_REMOVE(&mpt->request_pending_list, mpt->tmf_req, links);
4052                 mpt->tmf_req->state = REQ_STATE_FREE;
4053                 mpt_reset(mpt, TRUE);
4054         }
4055         return (error);
4056 }
4057
4058 /*
4059  * When a command times out, it is placed on the requeust_timeout_list
4060  * and we wake our recovery thread.  The MPT-Fusion architecture supports
4061  * only a single TMF operation at a time, so we serially abort/bdr, etc,
4062  * the timedout transactions.  The next TMF is issued either by the
4063  * completion handler of the current TMF waking our recovery thread,
4064  * or the TMF timeout handler causing a hard reset sequence.
4065  */
4066 static void
4067 mpt_recover_commands(struct mpt_softc *mpt)
4068 {
4069         request_t          *req;
4070         union ccb          *ccb;
4071         int                 error;
4072
4073         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4074                 /*
4075                  * No work to do- leave.
4076                  */
4077                 mpt_prt(mpt, "mpt_recover_commands: no requests.\n");
4078                 return;
4079         }
4080
4081         /*
4082          * Flush any commands whose completion coincides with their timeout.
4083          */
4084         mpt_intr(mpt);
4085
4086         if (TAILQ_EMPTY(&mpt->request_timeout_list) != 0) {
4087                 /*
4088                  * The timedout commands have already
4089                  * completed.  This typically means
4090                  * that either the timeout value was on
4091                  * the hairy edge of what the device
4092                  * requires or - more likely - interrupts
4093                  * are not happening.
4094                  */
4095                 mpt_prt(mpt, "Timedout requests already complete. "
4096                     "Interrupts may not be functioning.\n");
4097                 mpt_enable_ints(mpt);
4098                 return;
4099         }
4100
4101         /*
4102          * We have no visibility into the current state of the
4103          * controller, so attempt to abort the commands in the
4104          * order they timed-out. For initiator commands, we
4105          * depend on the reply handler pulling requests off
4106          * the timeout list.
4107          */
4108         while ((req = TAILQ_FIRST(&mpt->request_timeout_list)) != NULL) {
4109                 uint16_t status;
4110                 uint8_t response;
4111                 MSG_REQUEST_HEADER *hdrp = req->req_vbuf;
4112
4113                 mpt_prt(mpt, "attempting to abort req %p:%u function %x\n",
4114                     req, req->serno, hdrp->Function);
4115                 ccb = req->ccb;
4116                 if (ccb == NULL) {
4117                         mpt_prt(mpt, "null ccb in timed out request. "
4118                             "Resetting Controller.\n");
4119                         mpt_reset(mpt, TRUE);
4120                         continue;
4121                 }
4122                 mpt_set_ccb_status(ccb, CAM_CMD_TIMEOUT);
4123
4124                 /*
4125                  * Check to see if this is not an initiator command and
4126                  * deal with it differently if it is.
4127                  */
4128                 switch (hdrp->Function) {
4129                 case MPI_FUNCTION_SCSI_IO_REQUEST:
4130                 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
4131                         break;
4132                 default:
4133                         /*
4134                          * XXX: FIX ME: need to abort target assists...
4135                          */
4136                         mpt_prt(mpt, "just putting it back on the pend q\n");
4137                         TAILQ_REMOVE(&mpt->request_timeout_list, req, links);
4138                         TAILQ_INSERT_HEAD(&mpt->request_pending_list, req,
4139                             links);
4140                         continue;
4141                 }
4142
4143                 error = mpt_scsi_send_tmf(mpt,
4144                     MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
4145                     0, 0, ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
4146                     htole32(req->index | scsi_io_handler_id), TRUE);
4147
4148                 if (error != 0) {
4149                         /*
4150                          * mpt_scsi_send_tmf hard resets on failure, so no
4151                          * need to do so here.  Our queue should be emptied
4152                          * by the hard reset.
4153                          */
4154                         continue;
4155                 }
4156
4157                 error = mpt_wait_req(mpt, mpt->tmf_req, REQ_STATE_DONE,
4158                     REQ_STATE_DONE, TRUE, 500);
4159
4160                 status = le16toh(mpt->tmf_req->IOCStatus);
4161                 response = mpt->tmf_req->ResponseCode;
4162                 mpt->tmf_req->state = REQ_STATE_FREE;
4163
4164                 if (error != 0) {
4165                         /*
4166                          * If we've errored out,, reset the controller.
4167                          */
4168                         mpt_prt(mpt, "mpt_recover_commands: abort timed-out. "
4169                             "Resetting controller\n");
4170                         mpt_reset(mpt, TRUE);
4171                         continue;
4172                 }
4173
4174                 if ((status & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
4175                         mpt_prt(mpt, "mpt_recover_commands: IOC Status 0x%x. "
4176                             "Resetting controller.\n", status);
4177                         mpt_reset(mpt, TRUE);
4178                         continue;
4179                 }
4180
4181                 if (response != MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED &&
4182                     response != MPI_SCSITASKMGMT_RSP_TM_COMPLETE) {
4183                         mpt_prt(mpt, "mpt_recover_commands: TMF Response 0x%x. "
4184                             "Resetting controller.\n", response);
4185                         mpt_reset(mpt, TRUE);
4186                         continue;
4187                 }
4188                 mpt_prt(mpt, "abort of req %p:%u completed\n", req, req->serno);
4189         }
4190 }
4191
4192 /************************ Target Mode Support ****************************/
4193 static void
4194 mpt_fc_post_els(struct mpt_softc *mpt, request_t *req, int ioindex)
4195 {
4196         MSG_LINK_SERVICE_BUFFER_POST_REQUEST *fc;
4197         PTR_SGE_TRANSACTION32 tep;
4198         PTR_SGE_SIMPLE32 se;
4199         bus_addr_t paddr;
4200         uint32_t fl;
4201
4202         paddr = req->req_pbuf;
4203         paddr += MPT_RQSL(mpt);
4204
4205         fc = req->req_vbuf;
4206         memset(fc, 0, MPT_REQUEST_AREA);
4207         fc->BufferCount = 1;
4208         fc->Function = MPI_FUNCTION_FC_LINK_SRVC_BUF_POST;
4209         fc->MsgContext = htole32(req->index | fc_els_handler_id);
4210
4211         /*
4212          * Okay, set up ELS buffer pointers. ELS buffer pointers
4213          * consist of a TE SGL element (with details length of zero)
4214          * followe by a SIMPLE SGL element which holds the address
4215          * of the buffer.
4216          */
4217
4218         tep = (PTR_SGE_TRANSACTION32) &fc->SGL;
4219
4220         tep->ContextSize = 4;
4221         tep->Flags = 0;
4222         tep->TransactionContext[0] = htole32(ioindex);
4223
4224         se = (PTR_SGE_SIMPLE32) &tep->TransactionDetails[0];
4225         fl =
4226                 MPI_SGE_FLAGS_HOST_TO_IOC       |
4227                 MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4228                 MPI_SGE_FLAGS_LAST_ELEMENT      |
4229                 MPI_SGE_FLAGS_END_OF_LIST       |
4230                 MPI_SGE_FLAGS_END_OF_BUFFER;
4231         fl <<= MPI_SGE_FLAGS_SHIFT;
4232         fl |= (MPT_NRFM(mpt) - MPT_RQSL(mpt));
4233         se->FlagsLength = htole32(fl);
4234         se->Address = htole32((uint32_t) paddr);
4235         mpt_lprt(mpt, MPT_PRT_DEBUG,
4236             "add ELS index %d ioindex %d for %p:%u\n",
4237             req->index, ioindex, req, req->serno);
4238         KASSERT(((req->state & REQ_STATE_LOCKED) != 0),
4239             ("mpt_fc_post_els: request not locked"));
4240         mpt_send_cmd(mpt, req);
4241 }
4242
4243 static void
4244 mpt_post_target_command(struct mpt_softc *mpt, request_t *req, int ioindex)
4245 {
4246         PTR_MSG_TARGET_CMD_BUFFER_POST_REQUEST fc;
4247         PTR_CMD_BUFFER_DESCRIPTOR cb;
4248         bus_addr_t paddr;
4249
4250         paddr = req->req_pbuf;
4251         paddr += MPT_RQSL(mpt);
4252         memset(req->req_vbuf, 0, MPT_REQUEST_AREA);
4253         MPT_TGT_STATE(mpt, req)->state = TGT_STATE_LOADING;
4254
4255         fc = req->req_vbuf;
4256         fc->BufferCount = 1;
4257         fc->Function = MPI_FUNCTION_TARGET_CMD_BUFFER_POST;
4258         fc->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4259
4260         cb = &fc->Buffer[0];
4261         cb->IoIndex = htole16(ioindex);
4262         cb->u.PhysicalAddress32 = htole32((U32) paddr);
4263
4264         mpt_check_doorbell(mpt);
4265         mpt_send_cmd(mpt, req);
4266 }
4267
4268 static int
4269 mpt_add_els_buffers(struct mpt_softc *mpt)
4270 {
4271         int i;
4272
4273         if (mpt->is_fc == 0) {
4274                 return (TRUE);
4275         }
4276
4277         if (mpt->els_cmds_allocated) {
4278                 return (TRUE);
4279         }
4280
4281         mpt->els_cmd_ptrs = malloc(MPT_MAX_ELS * sizeof (request_t *),
4282             M_DEVBUF, M_NOWAIT | M_ZERO);
4283
4284         if (mpt->els_cmd_ptrs == NULL) {
4285                 return (FALSE);
4286         }
4287
4288         /*
4289          * Feed the chip some ELS buffer resources
4290          */
4291         for (i = 0; i < MPT_MAX_ELS; i++) {
4292                 request_t *req = mpt_get_request(mpt, FALSE);
4293                 if (req == NULL) {
4294                         break;
4295                 }
4296                 req->state |= REQ_STATE_LOCKED;
4297                 mpt->els_cmd_ptrs[i] = req;
4298                 mpt_fc_post_els(mpt, req, i);
4299         }
4300
4301         if (i == 0) {
4302                 mpt_prt(mpt, "unable to add ELS buffer resources\n");
4303                 free(mpt->els_cmd_ptrs, M_DEVBUF);
4304                 mpt->els_cmd_ptrs = NULL;
4305                 return (FALSE);
4306         }
4307         if (i != MPT_MAX_ELS) {
4308                 mpt_lprt(mpt, MPT_PRT_INFO,
4309                     "only added %d of %d  ELS buffers\n", i, MPT_MAX_ELS);
4310         }
4311         mpt->els_cmds_allocated = i;
4312         return(TRUE);
4313 }
4314
4315 static int
4316 mpt_add_target_commands(struct mpt_softc *mpt)
4317 {
4318         int i, max;
4319
4320         if (mpt->tgt_cmd_ptrs) {
4321                 return (TRUE);
4322         }
4323
4324         max = MPT_MAX_REQUESTS(mpt) >> 1;
4325         if (max > mpt->mpt_max_tgtcmds) {
4326                 max = mpt->mpt_max_tgtcmds;
4327         }
4328         mpt->tgt_cmd_ptrs =
4329             malloc(max * sizeof (request_t *), M_DEVBUF, M_NOWAIT | M_ZERO);
4330         if (mpt->tgt_cmd_ptrs == NULL) {
4331                 mpt_prt(mpt,
4332                     "mpt_add_target_commands: could not allocate cmd ptrs\n");
4333                 return (FALSE);
4334         }
4335
4336         for (i = 0; i < max; i++) {
4337                 request_t *req;
4338
4339                 req = mpt_get_request(mpt, FALSE);
4340                 if (req == NULL) {
4341                         break;
4342                 }
4343                 req->state |= REQ_STATE_LOCKED;
4344                 mpt->tgt_cmd_ptrs[i] = req;
4345                 mpt_post_target_command(mpt, req, i);
4346         }
4347
4348
4349         if (i == 0) {
4350                 mpt_lprt(mpt, MPT_PRT_ERROR, "could not add any target bufs\n");
4351                 free(mpt->tgt_cmd_ptrs, M_DEVBUF);
4352                 mpt->tgt_cmd_ptrs = NULL;
4353                 return (FALSE);
4354         }
4355
4356         mpt->tgt_cmds_allocated = i;
4357
4358         if (i < max) {
4359                 mpt_lprt(mpt, MPT_PRT_INFO,
4360                     "added %d of %d target bufs\n", i, max);
4361         }
4362         return (i);
4363 }
4364
4365 static int
4366 mpt_enable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4367 {
4368         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4369                 mpt->twildcard = 1;
4370         } else if (lun >= MPT_MAX_LUNS) {
4371                 return (EINVAL);
4372         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4373                 return (EINVAL);
4374         }
4375         if (mpt->tenabled == 0) {
4376                 if (mpt->is_fc) {
4377                         (void) mpt_fc_reset_link(mpt, 0);
4378                 }
4379                 mpt->tenabled = 1;
4380         }
4381         if (lun == CAM_LUN_WILDCARD) {
4382                 mpt->trt_wildcard.enabled = 1;
4383         } else {
4384                 mpt->trt[lun].enabled = 1;
4385         }
4386         return (0);
4387 }
4388
4389 static int
4390 mpt_disable_lun(struct mpt_softc *mpt, target_id_t tgt, lun_id_t lun)
4391 {
4392         int i;
4393         if (tgt == CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
4394                 mpt->twildcard = 0;
4395         } else if (lun >= MPT_MAX_LUNS) {
4396                 return (EINVAL);
4397         } else if (tgt != CAM_TARGET_WILDCARD && tgt != 0) {
4398                 return (EINVAL);
4399         }
4400         if (lun == CAM_LUN_WILDCARD) {
4401                 mpt->trt_wildcard.enabled = 0;
4402         } else {
4403                 mpt->trt[lun].enabled = 0;
4404         }
4405         for (i = 0; i < MPT_MAX_LUNS; i++) {
4406                 if (mpt->trt[lun].enabled) {
4407                         break;
4408                 }
4409         }
4410         if (i == MPT_MAX_LUNS && mpt->twildcard == 0) {
4411                 if (mpt->is_fc) {
4412                         (void) mpt_fc_reset_link(mpt, 0);
4413                 }
4414                 mpt->tenabled = 0;
4415         }
4416         return (0);
4417 }
4418
4419 /*
4420  * Called with MPT lock held
4421  */
4422 static void
4423 mpt_target_start_io(struct mpt_softc *mpt, union ccb *ccb)
4424 {
4425         struct ccb_scsiio *csio = &ccb->csio;
4426         request_t *cmd_req = MPT_TAG_2_REQ(mpt, csio->tag_id);
4427         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, cmd_req);
4428
4429         switch (tgt->state) {
4430         case TGT_STATE_IN_CAM:
4431                 break;
4432         case TGT_STATE_MOVING_DATA:
4433                 mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4434                 xpt_freeze_simq(mpt->sim, 1);
4435                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4436                 tgt->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4437                 MPTLOCK_2_CAMLOCK(mpt);
4438                 xpt_done(ccb);
4439                 CAMLOCK_2_MPTLOCK(mpt);
4440                 return;
4441         default:
4442                 mpt_prt(mpt, "ccb %p flags 0x%x tag 0x%08x had bad request "
4443                     "starting I/O\n", ccb, csio->ccb_h.flags, csio->tag_id);
4444                 mpt_tgt_dump_req_state(mpt, cmd_req);
4445                 mpt_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
4446                 MPTLOCK_2_CAMLOCK(mpt);
4447                 xpt_done(ccb);
4448                 CAMLOCK_2_MPTLOCK(mpt);
4449                 return;
4450         }
4451
4452         if (csio->dxfer_len) {
4453                 bus_dmamap_callback_t *cb;
4454                 PTR_MSG_TARGET_ASSIST_REQUEST ta;
4455                 request_t *req;
4456
4457                 KASSERT((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE,
4458                     ("dxfer_len %u but direction is NONE\n", csio->dxfer_len));
4459
4460                 if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4461                         if (mpt->outofbeer == 0) {
4462                                 mpt->outofbeer = 1;
4463                                 xpt_freeze_simq(mpt->sim, 1);
4464                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4465                         }
4466                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4467                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4468                         MPTLOCK_2_CAMLOCK(mpt);
4469                         xpt_done(ccb);
4470                         CAMLOCK_2_MPTLOCK(mpt);
4471                         return;
4472                 }
4473                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4474                 if (sizeof (bus_addr_t) > 4) {
4475                         cb = mpt_execute_req_a64;
4476                 } else {
4477                         cb = mpt_execute_req;
4478                 }
4479
4480                 req->ccb = ccb;
4481                 ccb->ccb_h.ccb_req_ptr = req;
4482
4483                 /*
4484                  * Record the currently active ccb and the
4485                  * request for it in our target state area.
4486                  */
4487                 tgt->ccb = ccb;
4488                 tgt->req = req;
4489
4490                 memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4491                 ta = req->req_vbuf;
4492
4493                 if (mpt->is_sas) {
4494                         PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4495                              cmd_req->req_vbuf;
4496                         ta->QueueTag = ssp->InitiatorTag;
4497                 } else if (mpt->is_spi) {
4498                         PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4499                              cmd_req->req_vbuf;
4500                         ta->QueueTag = sp->Tag;
4501                 }
4502                 ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4503                 ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4504                 ta->ReplyWord = htole32(tgt->reply_desc);
4505                 if (csio->ccb_h.target_lun > MPT_MAX_LUNS) {
4506                         ta->LUN[0] =
4507                             0x40 | ((csio->ccb_h.target_lun >> 8) & 0x3f);
4508                         ta->LUN[1] = csio->ccb_h.target_lun & 0xff;
4509                 } else {
4510                         ta->LUN[1] = csio->ccb_h.target_lun;
4511                 }
4512
4513                 ta->RelativeOffset = tgt->bytes_xfered;
4514                 ta->DataLength = ccb->csio.dxfer_len;
4515                 if (ta->DataLength > tgt->resid) {
4516                         ta->DataLength = tgt->resid;
4517                 }
4518
4519                 /*
4520                  * XXX Should be done after data transfer completes?
4521                  */
4522                 tgt->resid -= csio->dxfer_len;
4523                 tgt->bytes_xfered += csio->dxfer_len;
4524
4525                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
4526                         ta->TargetAssistFlags |=
4527                             TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4528                 }
4529
4530 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4531                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) &&
4532                     csio->scsi_status == SCSI_STATUS_OK && tgt->resid == 0) {
4533                         ta->TargetAssistFlags |=
4534                             TARGET_ASSIST_FLAGS_AUTO_STATUS;
4535                 }
4536 #endif
4537                 tgt->state = TGT_STATE_SETTING_UP_FOR_DATA;
4538
4539                 mpt_lprt(mpt, MPT_PRT_DEBUG,
4540                     "DATA_CCB %p tag %x %u bytes %u resid flg %x req %p:%u "
4541                     "nxtstate=%d\n", csio, csio->tag_id, csio->dxfer_len,
4542                     tgt->resid, ccb->ccb_h.flags, req, req->serno, tgt->state);
4543
4544                 MPTLOCK_2_CAMLOCK(mpt);
4545                 if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
4546                         if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) {
4547                                 int error;
4548                                 int s = splsoftvm();
4549                                 error = bus_dmamap_load(mpt->buffer_dmat,
4550                                     req->dmap, csio->data_ptr, csio->dxfer_len,
4551                                     cb, req, 0);
4552                                 splx(s);
4553                                 if (error == EINPROGRESS) {
4554                                         xpt_freeze_simq(mpt->sim, 1);
4555                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
4556                                 }
4557                         } else {
4558                                 /*
4559                                  * We have been given a pointer to single
4560                                  * physical buffer.
4561                                  */
4562                                 struct bus_dma_segment seg;
4563                                 seg.ds_addr = (bus_addr_t)
4564                                     (vm_offset_t)csio->data_ptr;
4565                                 seg.ds_len = csio->dxfer_len;
4566                                 (*cb)(req, &seg, 1, 0);
4567                         }
4568                 } else {
4569                         /*
4570                          * We have been given a list of addresses.
4571                          * This case could be easily supported but they are not
4572                          * currently generated by the CAM subsystem so there
4573                          * is no point in wasting the time right now.
4574                          */
4575                         struct bus_dma_segment *sgs;
4576                         if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
4577                                 (*cb)(req, NULL, 0, EFAULT);
4578                         } else {
4579                                 /* Just use the segments provided */
4580                                 sgs = (struct bus_dma_segment *)csio->data_ptr;
4581                                 (*cb)(req, sgs, csio->sglist_cnt, 0);
4582                         }
4583                 }
4584                 CAMLOCK_2_MPTLOCK(mpt);
4585         } else {
4586                 uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
4587
4588                 /*
4589                  * XXX: I don't know why this seems to happen, but
4590                  * XXX: completing the CCB seems to make things happy.
4591                  * XXX: This seems to happen if the initiator requests
4592                  * XXX: enough data that we have to do multiple CTIOs.
4593                  */
4594                 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
4595                         mpt_lprt(mpt, MPT_PRT_DEBUG,
4596                             "Meaningless STATUS CCB (%p): flags %x status %x "
4597                             "resid %d bytes_xfered %u\n", ccb, ccb->ccb_h.flags,
4598                             ccb->ccb_h.status, tgt->resid, tgt->bytes_xfered);
4599                         mpt_set_ccb_status(ccb, CAM_REQ_CMP);
4600                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4601                         MPTLOCK_2_CAMLOCK(mpt);
4602                         xpt_done(ccb);
4603                         CAMLOCK_2_MPTLOCK(mpt);
4604                         return;
4605                 }
4606                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
4607                         sp = sense;
4608                         memcpy(sp, &csio->sense_data,
4609                            min(csio->sense_len, MPT_SENSE_SIZE));
4610                 }
4611                 mpt_scsi_tgt_status(mpt, ccb, cmd_req, csio->scsi_status, sp);
4612         }
4613 }
4614
4615 static void
4616 mpt_scsi_tgt_local(struct mpt_softc *mpt, request_t *cmd_req,
4617     uint32_t lun, int send, uint8_t *data, size_t length)
4618 {
4619         mpt_tgt_state_t *tgt;
4620         PTR_MSG_TARGET_ASSIST_REQUEST ta;
4621         SGE_SIMPLE32 *se;
4622         uint32_t flags;
4623         uint8_t *dptr;
4624         bus_addr_t pptr;
4625         request_t *req;
4626
4627         /*
4628          * We enter with resid set to the data load for the command.
4629          */
4630         tgt = MPT_TGT_STATE(mpt, cmd_req);
4631         if (length == 0 || tgt->resid == 0) {
4632                 tgt->resid = 0;
4633                 mpt_scsi_tgt_status(mpt, NULL, cmd_req, 0, NULL);
4634                 return;
4635         }
4636
4637         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4638                 mpt_prt(mpt, "out of resources- dropping local response\n");
4639                 return;
4640         }
4641         tgt->is_local = 1;
4642
4643
4644         memset(req->req_vbuf, 0, MPT_RQSL(mpt));
4645         ta = req->req_vbuf;
4646
4647         if (mpt->is_sas) {
4648                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp = cmd_req->req_vbuf;
4649                 ta->QueueTag = ssp->InitiatorTag;
4650         } else if (mpt->is_spi) {
4651                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp = cmd_req->req_vbuf;
4652                 ta->QueueTag = sp->Tag;
4653         }
4654         ta->Function = MPI_FUNCTION_TARGET_ASSIST;
4655         ta->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4656         ta->ReplyWord = htole32(tgt->reply_desc);
4657         if (lun > MPT_MAX_LUNS) {
4658                 ta->LUN[0] = 0x40 | ((lun >> 8) & 0x3f);
4659                 ta->LUN[1] = lun & 0xff;
4660         } else {
4661                 ta->LUN[1] = lun;
4662         }
4663         ta->RelativeOffset = 0;
4664         ta->DataLength = length;
4665
4666         dptr = req->req_vbuf;
4667         dptr += MPT_RQSL(mpt);
4668         pptr = req->req_pbuf;
4669         pptr += MPT_RQSL(mpt);
4670         memcpy(dptr, data, min(length, MPT_RQSL(mpt)));
4671
4672         se = (SGE_SIMPLE32 *) &ta->SGL[0];
4673         memset(se, 0,sizeof (*se));
4674
4675         flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
4676         if (send) {
4677                 ta->TargetAssistFlags |= TARGET_ASSIST_FLAGS_DATA_DIRECTION;
4678                 flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
4679         }
4680         se->Address = pptr;
4681         MPI_pSGE_SET_LENGTH(se, length);
4682         flags |= MPI_SGE_FLAGS_LAST_ELEMENT;
4683         flags |= MPI_SGE_FLAGS_END_OF_LIST | MPI_SGE_FLAGS_END_OF_BUFFER;
4684         MPI_pSGE_SET_FLAGS(se, flags);
4685
4686         tgt->ccb = NULL;
4687         tgt->req = req;
4688         tgt->resid -= length;
4689         tgt->bytes_xfered = length;
4690 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4691         tgt->state = TGT_STATE_MOVING_DATA_AND_STATUS;
4692 #else
4693         tgt->state = TGT_STATE_MOVING_DATA;
4694 #endif
4695         mpt_send_cmd(mpt, req);
4696 }
4697
4698 /*
4699  * Abort queued up CCBs
4700  */
4701 static cam_status
4702 mpt_abort_target_ccb(struct mpt_softc *mpt, union ccb *ccb)
4703 {
4704         struct mpt_hdr_stailq *lp;
4705         struct ccb_hdr *srch;
4706         int found = 0;
4707         union ccb *accb = ccb->cab.abort_ccb;
4708         tgt_resource_t *trtp;
4709
4710         mpt_lprt(mpt, MPT_PRT_DEBUG, "aborting ccb %p\n", accb);
4711
4712         if (ccb->ccb_h.target_lun == CAM_LUN_WILDCARD) {
4713                 trtp = &mpt->trt_wildcard;
4714         } else {
4715                 trtp = &mpt->trt[ccb->ccb_h.target_lun];
4716         }
4717
4718         if (accb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
4719                 lp = &trtp->atios;
4720         } else if (accb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
4721                 lp = &trtp->inots;
4722         } else {
4723                 return (CAM_REQ_INVALID);
4724         }
4725
4726         STAILQ_FOREACH(srch, lp, sim_links.stqe) {
4727                 if (srch == &accb->ccb_h) {
4728                         found = 1;
4729                         STAILQ_REMOVE(lp, srch, ccb_hdr, sim_links.stqe);
4730                         break;
4731                 }
4732         }
4733         if (found) {
4734                 accb->ccb_h.status = CAM_REQ_ABORTED;
4735                 xpt_done(accb);
4736                 return (CAM_REQ_CMP);
4737         }
4738         mpt_prt(mpt, "mpt_abort_tgt_ccb: CCB %p not found\n", ccb);
4739         return (CAM_PATH_INVALID);
4740 }
4741
4742 /*
4743  * Ask the MPT to abort the current target command
4744  */
4745 static int
4746 mpt_abort_target_cmd(struct mpt_softc *mpt, request_t *cmd_req)
4747 {
4748         int error;
4749         request_t *req;
4750         PTR_MSG_TARGET_MODE_ABORT abtp;
4751
4752         req = mpt_get_request(mpt, FALSE);
4753         if (req == NULL) {
4754                 return (-1);
4755         }
4756         abtp = req->req_vbuf;
4757         memset(abtp, 0, sizeof (*abtp));
4758
4759         abtp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4760         abtp->AbortType = TARGET_MODE_ABORT_TYPE_EXACT_IO;
4761         abtp->Function = MPI_FUNCTION_TARGET_MODE_ABORT;
4762         abtp->ReplyWord = htole32(MPT_TGT_STATE(mpt, cmd_req)->reply_desc);
4763         error = 0;
4764         if (mpt->is_fc || mpt->is_sas) {
4765                 mpt_send_cmd(mpt, req);
4766         } else {
4767                 error = mpt_send_handshake_cmd(mpt, sizeof(*req), req);
4768         }
4769         return (error);
4770 }
4771
4772 /*
4773  * WE_TRUST_AUTO_GOOD_STATUS- I've found that setting
4774  * TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS leads the
4775  * FC929 to set bogus FC_RSP fields (nonzero residuals
4776  * but w/o RESID fields set). This causes QLogic initiators
4777  * to think maybe that a frame was lost.
4778  *
4779  * WE_CAN_USE_AUTO_REPOST- we can't use AUTO_REPOST because
4780  * we use allocated requests to do TARGET_ASSIST and we
4781  * need to know when to release them.
4782  */
4783
4784 static void
4785 mpt_scsi_tgt_status(struct mpt_softc *mpt, union ccb *ccb, request_t *cmd_req,
4786     uint8_t status, uint8_t const *sense_data)
4787 {
4788         uint8_t *cmd_vbuf;
4789         mpt_tgt_state_t *tgt;
4790         PTR_MSG_TARGET_STATUS_SEND_REQUEST tp;
4791         request_t *req;
4792         bus_addr_t paddr;
4793         int resplen = 0;
4794         uint32_t fl;
4795
4796         cmd_vbuf = cmd_req->req_vbuf;
4797         cmd_vbuf += MPT_RQSL(mpt);
4798         tgt = MPT_TGT_STATE(mpt, cmd_req);
4799
4800         if ((req = mpt_get_request(mpt, FALSE)) == NULL) {
4801                 if (mpt->outofbeer == 0) {
4802                         mpt->outofbeer = 1;
4803                         xpt_freeze_simq(mpt->sim, 1);
4804                         mpt_lprt(mpt, MPT_PRT_DEBUG, "FREEZEQ\n");
4805                 }
4806                 if (ccb) {
4807                         ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
4808                         mpt_set_ccb_status(ccb, CAM_REQUEUE_REQ);
4809                         MPTLOCK_2_CAMLOCK(mpt);
4810                         xpt_done(ccb);
4811                         CAMLOCK_2_MPTLOCK(mpt);
4812                 } else {
4813                         mpt_prt(mpt,
4814                             "could not allocate status request- dropping\n");
4815                 }
4816                 return;
4817         }
4818         req->ccb = ccb;
4819         if (ccb) {
4820                 ccb->ccb_h.ccb_mpt_ptr = mpt;
4821                 ccb->ccb_h.ccb_req_ptr = req;
4822         }
4823
4824         /*
4825          * Record the currently active ccb, if any, and the
4826          * request for it in our target state area.
4827          */
4828         tgt->ccb = ccb;
4829         tgt->req = req;
4830         tgt->state = TGT_STATE_SENDING_STATUS;
4831
4832         tp = req->req_vbuf;
4833         paddr = req->req_pbuf;
4834         paddr += MPT_RQSL(mpt);
4835
4836         memset(tp, 0, sizeof (*tp));
4837         tp->Function = MPI_FUNCTION_TARGET_STATUS_SEND;
4838         if (mpt->is_fc) {
4839                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc =
4840                     (PTR_MPI_TARGET_FCP_CMD_BUFFER) cmd_vbuf;
4841                 uint8_t *sts_vbuf;
4842                 uint32_t *rsp;
4843
4844                 sts_vbuf = req->req_vbuf;
4845                 sts_vbuf += MPT_RQSL(mpt);
4846                 rsp = (uint32_t *) sts_vbuf;
4847                 memcpy(tp->LUN, fc->FcpLun, sizeof (tp->LUN));
4848
4849                 /*
4850                  * The MPI_TARGET_FCP_RSP_BUFFER define is unfortunate.
4851                  * It has to be big-endian in memory and is organized
4852                  * in 32 bit words, which are much easier to deal with
4853                  * as words which are swizzled as needed.
4854                  *
4855                  * All we're filling here is the FC_RSP payload.
4856                  * We may just have the chip synthesize it if
4857                  * we have no residual and an OK status.
4858                  *
4859                  */
4860                 memset(rsp, 0, sizeof (MPI_TARGET_FCP_RSP_BUFFER));
4861
4862                 rsp[2] = status;
4863                 if (tgt->resid) {
4864                         rsp[2] |= 0x800;        /* XXXX NEED MNEMONIC!!!! */
4865                         rsp[3] = htobe32(tgt->resid);
4866 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4867                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4868 #endif
4869                 }
4870                 if (status == SCSI_STATUS_CHECK_COND) {
4871                         int i;
4872
4873                         rsp[2] |= 0x200;        /* XXXX NEED MNEMONIC!!!! */
4874                         rsp[4] = htobe32(MPT_SENSE_SIZE);
4875                         if (sense_data) {
4876                                 memcpy(&rsp[8], sense_data, MPT_SENSE_SIZE);
4877                         } else {
4878                                 mpt_prt(mpt, "mpt_scsi_tgt_status: CHECK CONDI"
4879                                     "TION but no sense data?\n");
4880                                 memset(&rsp, 0, MPT_SENSE_SIZE);
4881                         }
4882                         for (i = 8; i < (8 + (MPT_SENSE_SIZE >> 2)); i++) {
4883                                 rsp[i] = htobe32(rsp[i]);
4884                         }
4885 #ifdef  WE_TRUST_AUTO_GOOD_STATUS
4886                         resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4887 #endif
4888                 }
4889 #ifndef WE_TRUST_AUTO_GOOD_STATUS
4890                 resplen = sizeof (MPI_TARGET_FCP_RSP_BUFFER);
4891 #endif
4892                 rsp[2] = htobe32(rsp[2]);
4893         } else if (mpt->is_sas) {
4894                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp =
4895                     (PTR_MPI_TARGET_SSP_CMD_BUFFER) cmd_vbuf;
4896                 memcpy(tp->LUN, ssp->LogicalUnitNumber, sizeof (tp->LUN));
4897         } else {
4898                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp =
4899                     (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) cmd_vbuf;
4900                 tp->StatusCode = status;
4901                 tp->QueueTag = htole16(sp->Tag);
4902                 memcpy(tp->LUN, sp->LogicalUnitNumber, sizeof (tp->LUN));
4903         }
4904
4905         tp->ReplyWord = htole32(tgt->reply_desc);
4906         tp->MsgContext = htole32(req->index | mpt->scsi_tgt_handler_id);
4907
4908 #ifdef  WE_CAN_USE_AUTO_REPOST
4909         tp->MsgFlags = TARGET_STATUS_SEND_FLAGS_REPOST_CMD_BUFFER;
4910 #endif
4911         if (status == SCSI_STATUS_OK && resplen == 0) {
4912                 tp->MsgFlags |= TARGET_STATUS_SEND_FLAGS_AUTO_GOOD_STATUS;
4913         } else {
4914                 tp->StatusDataSGE.u.Address32 = htole32((uint32_t) paddr);
4915                 fl =
4916                         MPI_SGE_FLAGS_HOST_TO_IOC       |
4917                         MPI_SGE_FLAGS_SIMPLE_ELEMENT    |
4918                         MPI_SGE_FLAGS_LAST_ELEMENT      |
4919                         MPI_SGE_FLAGS_END_OF_LIST       |
4920                         MPI_SGE_FLAGS_END_OF_BUFFER;
4921                 fl <<= MPI_SGE_FLAGS_SHIFT;
4922                 fl |= resplen;
4923                 tp->StatusDataSGE.FlagsLength = htole32(fl);
4924         }
4925
4926         mpt_lprt(mpt, MPT_PRT_DEBUG,
4927             "STATUS_CCB %p (wit%s sense) tag %x req %p:%u resid %u\n",
4928             ccb, sense_data?"h" : "hout", ccb? ccb->csio.tag_id : -1, req,
4929             req->serno, tgt->resid);
4930         if (ccb) {
4931                 ccb->ccb_h.status = CAM_SIM_QUEUED | CAM_REQ_INPROG;
4932                 mpt_req_timeout(req, 60 * hz, mpt_timeout, ccb);
4933         }
4934         mpt_send_cmd(mpt, req);
4935 }
4936
4937 static void
4938 mpt_scsi_tgt_tsk_mgmt(struct mpt_softc *mpt, request_t *req, mpt_task_mgmt_t fc,
4939     tgt_resource_t *trtp, int init_id)
4940 {
4941         struct ccb_immed_notify *inot;
4942         mpt_tgt_state_t *tgt;
4943
4944         tgt = MPT_TGT_STATE(mpt, req);
4945         inot = (struct ccb_immed_notify *) STAILQ_FIRST(&trtp->inots);
4946         if (inot == NULL) {
4947                 mpt_lprt(mpt, MPT_PRT_WARN, "no INOTSs- sending back BSY\n");
4948                 mpt_scsi_tgt_status(mpt, NULL, req, SCSI_STATUS_BUSY, NULL);
4949                 return;
4950         }
4951         STAILQ_REMOVE_HEAD(&trtp->inots, sim_links.stqe);
4952         mpt_lprt(mpt, MPT_PRT_DEBUG1,
4953             "Get FREE INOT %p lun %d\n", inot, inot->ccb_h.target_lun);
4954
4955         memset(&inot->sense_data, 0, sizeof (inot->sense_data));
4956         inot->sense_len = 0;
4957         memset(inot->message_args, 0, sizeof (inot->message_args));
4958         inot->initiator_id = init_id;   /* XXX */
4959
4960         /*
4961          * This is a somewhat grotesque attempt to map from task management
4962          * to old style SCSI messages. God help us all.
4963          */
4964         switch (fc) {
4965         case MPT_ABORT_TASK_SET:
4966                 inot->message_args[0] = MSG_ABORT_TAG;
4967                 break;
4968         case MPT_CLEAR_TASK_SET:
4969                 inot->message_args[0] = MSG_CLEAR_TASK_SET;
4970                 break;
4971         case MPT_TARGET_RESET:
4972                 inot->message_args[0] = MSG_TARGET_RESET;
4973                 break;
4974         case MPT_CLEAR_ACA:
4975                 inot->message_args[0] = MSG_CLEAR_ACA;
4976                 break;
4977         case MPT_TERMINATE_TASK:
4978                 inot->message_args[0] = MSG_ABORT_TAG;
4979                 break;
4980         default:
4981                 inot->message_args[0] = MSG_NOOP;
4982                 break;
4983         }
4984         tgt->ccb = (union ccb *) inot;
4985         inot->ccb_h.status = CAM_MESSAGE_RECV|CAM_DEV_QFRZN;
4986         MPTLOCK_2_CAMLOCK(mpt);
4987         xpt_done((union ccb *)inot);
4988         CAMLOCK_2_MPTLOCK(mpt);
4989 }
4990
4991 static void
4992 mpt_scsi_tgt_atio(struct mpt_softc *mpt, request_t *req, uint32_t reply_desc)
4993 {
4994         static uint8_t null_iqd[SHORT_INQUIRY_LENGTH] = {
4995             0x7f, 0x00, 0x02, 0x02, 0x20, 0x00, 0x00, 0x32,
4996              'F',  'R',  'E',  'E',  'B',  'S',  'D',  ' ',
4997              'L',  'S',  'I',  '-',  'L',  'O',  'G',  'I',
4998              'C',  ' ',  'N',  'U',  'L',  'D',  'E',  'V',
4999              '0',  '0',  '0',  '1'
5000         };
5001         struct ccb_accept_tio *atiop;
5002         lun_id_t lun;
5003         int tag_action = 0;
5004         mpt_tgt_state_t *tgt;
5005         tgt_resource_t *trtp = NULL;
5006         U8 *lunptr;
5007         U8 *vbuf;
5008         U16 itag;
5009         U16 ioindex;
5010         mpt_task_mgmt_t fct = MPT_NIL_TMT_VALUE;
5011         uint8_t *cdbp;
5012
5013         /*
5014          * First, DMA sync the received command-
5015          * which is in the *request* * phys area.
5016          *
5017          * XXX: We could optimize this for a range
5018          */
5019         bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
5020             BUS_DMASYNC_POSTREAD);
5021
5022         /*
5023          * Stash info for the current command where we can get at it later.
5024          */
5025         vbuf = req->req_vbuf;
5026         vbuf += MPT_RQSL(mpt);
5027
5028         /*
5029          * Get our state pointer set up.
5030          */
5031         tgt = MPT_TGT_STATE(mpt, req);
5032         if (tgt->state != TGT_STATE_LOADED) {
5033                 mpt_tgt_dump_req_state(mpt, req);
5034                 panic("bad target state in mpt_scsi_tgt_atio");
5035         }
5036         memset(tgt, 0, sizeof (mpt_tgt_state_t));
5037         tgt->state = TGT_STATE_IN_CAM;
5038         tgt->reply_desc = reply_desc;
5039         ioindex = GET_IO_INDEX(reply_desc);
5040         if (mpt->verbose >= MPT_PRT_DEBUG) {
5041                 mpt_dump_data(mpt, "mpt_scsi_tgt_atio response", vbuf,
5042                     max(sizeof (MPI_TARGET_FCP_CMD_BUFFER),
5043                     max(sizeof (MPI_TARGET_SSP_CMD_BUFFER),
5044                     sizeof (MPI_TARGET_SCSI_SPI_CMD_BUFFER))));
5045         }
5046         if (mpt->is_fc) {
5047                 PTR_MPI_TARGET_FCP_CMD_BUFFER fc;
5048                 fc = (PTR_MPI_TARGET_FCP_CMD_BUFFER) vbuf;
5049                 if (fc->FcpCntl[2]) {
5050                         /*
5051                          * Task Management Request
5052                          */
5053                         switch (fc->FcpCntl[2]) {
5054                         case 0x2:
5055                                 fct = MPT_ABORT_TASK_SET;
5056                                 break;
5057                         case 0x4:
5058                                 fct = MPT_CLEAR_TASK_SET;
5059                                 break;
5060                         case 0x20:
5061                                 fct = MPT_TARGET_RESET;
5062                                 break;
5063                         case 0x40:
5064                                 fct = MPT_CLEAR_ACA;
5065                                 break;
5066                         case 0x80:
5067                                 fct = MPT_TERMINATE_TASK;
5068                                 break;
5069                         default:
5070                                 mpt_prt(mpt, "CORRUPTED TASK MGMT BITS: 0x%x\n",
5071                                     fc->FcpCntl[2]);
5072                                 mpt_scsi_tgt_status(mpt, 0, req,
5073                                     SCSI_STATUS_OK, 0);
5074                                 return;
5075                         }
5076                 } else {
5077                         switch (fc->FcpCntl[1]) {
5078                         case 0:
5079                                 tag_action = MSG_SIMPLE_Q_TAG;
5080                                 break;
5081                         case 1:
5082                                 tag_action = MSG_HEAD_OF_Q_TAG;
5083                                 break;
5084                         case 2:
5085                                 tag_action = MSG_ORDERED_Q_TAG;
5086                                 break;
5087                         default:
5088                                 /*
5089                                  * Bah. Ignore Untagged Queing and ACA
5090                                  */
5091                                 tag_action = MSG_SIMPLE_Q_TAG;
5092                                 break;
5093                         }
5094                 }
5095                 tgt->resid = be32toh(fc->FcpDl);
5096                 cdbp = fc->FcpCdb;
5097                 lunptr = fc->FcpLun;
5098                 itag = be16toh(fc->OptionalOxid);
5099         } else if (mpt->is_sas) {
5100                 PTR_MPI_TARGET_SSP_CMD_BUFFER ssp;
5101                 ssp = (PTR_MPI_TARGET_SSP_CMD_BUFFER) vbuf;
5102                 cdbp = ssp->CDB;
5103                 lunptr = ssp->LogicalUnitNumber;
5104                 itag = ssp->InitiatorTag;
5105         } else {
5106                 PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER sp;
5107                 sp = (PTR_MPI_TARGET_SCSI_SPI_CMD_BUFFER) vbuf;
5108                 cdbp = sp->CDB;
5109                 lunptr = sp->LogicalUnitNumber;
5110                 itag = sp->Tag;
5111         }
5112
5113         /*
5114          * Generate a simple lun
5115          */
5116         switch (lunptr[0] & 0xc0) {
5117         case 0x40:
5118                 lun = ((lunptr[0] & 0x3f) << 8) | lunptr[1];
5119                 break;
5120         case 0:
5121                 lun = lunptr[1];
5122                 break;
5123         default:
5124                 mpt_lprt(mpt, MPT_PRT_ERROR, "cannot handle this type lun\n");
5125                 lun = 0xffff;
5126                 break;
5127         }
5128
5129         /*
5130          * Deal with non-enabled or bad luns here.
5131          */
5132         if (lun >= MPT_MAX_LUNS || mpt->tenabled == 0 ||
5133             mpt->trt[lun].enabled == 0) {
5134                 if (mpt->twildcard) {
5135                         trtp = &mpt->trt_wildcard;
5136                 } else if (fct == MPT_NIL_TMT_VALUE) {
5137                         /*
5138                          * In this case, we haven't got an upstream listener
5139                          * for either a specific lun or wildcard luns. We
5140                          * have to make some sensible response. For regular
5141                          * inquiry, just return some NOT HERE inquiry data.
5142                          * For VPD inquiry, report illegal field in cdb.
5143                          * For REQUEST SENSE, just return NO SENSE data.
5144                          * REPORT LUNS gets illegal command.
5145                          * All other commands get 'no such device'.
5146                          */
5147                         uint8_t *sp, cond, buf[MPT_SENSE_SIZE];
5148                         size_t len;
5149
5150                         memset(buf, 0, MPT_SENSE_SIZE);
5151                         cond = SCSI_STATUS_CHECK_COND;
5152                         buf[0] = 0xf0;
5153                         buf[2] = 0x5;
5154                         buf[7] = 0x8;
5155                         sp = buf;
5156                         tgt->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5157
5158                         switch (cdbp[0]) {
5159                         case INQUIRY:
5160                         {
5161                                 if (cdbp[1] != 0) {
5162                                         buf[12] = 0x26;
5163                                         buf[13] = 0x01;
5164                                         break;
5165                                 }
5166                                 len = min(tgt->resid, cdbp[4]);
5167                                 len = min(len, sizeof (null_iqd));
5168                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5169                                     "local inquiry %ld bytes\n", (long) len);
5170                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5171                                     null_iqd, len);
5172                                 return;
5173                         }
5174                         case REQUEST_SENSE:
5175                         {
5176                                 buf[2] = 0x0;
5177                                 len = min(tgt->resid, cdbp[4]);
5178                                 len = min(len, sizeof (buf));
5179                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5180                                     "local reqsense %ld bytes\n", (long) len);
5181                                 mpt_scsi_tgt_local(mpt, req, lun, 1,
5182                                     buf, len);
5183                                 return;
5184                         }
5185                         case REPORT_LUNS:
5186                                 mpt_lprt(mpt, MPT_PRT_DEBUG, "REPORT LUNS\n");
5187                                 buf[12] = 0x26;
5188                                 return;
5189                         default:
5190                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5191                                     "CMD 0x%x to unmanaged lun %u\n",
5192                                     cdbp[0], lun);
5193                                 buf[12] = 0x25;
5194                                 break;
5195                         }
5196                         mpt_scsi_tgt_status(mpt, NULL, req, cond, sp);
5197                         return;
5198                 }
5199                 /* otherwise, leave trtp NULL */
5200         } else {
5201                 trtp = &mpt->trt[lun];
5202         }
5203
5204         /*
5205          * Deal with any task management
5206          */
5207         if (fct != MPT_NIL_TMT_VALUE) {
5208                 if (trtp == NULL) {
5209                         mpt_prt(mpt, "task mgmt function %x but no listener\n",
5210                             fct);
5211                         mpt_scsi_tgt_status(mpt, 0, req,
5212                             SCSI_STATUS_OK, 0);
5213                 } else {
5214                         mpt_scsi_tgt_tsk_mgmt(mpt, req, fct, trtp,
5215                             GET_INITIATOR_INDEX(reply_desc));
5216                 }
5217                 return;
5218         }
5219
5220
5221         atiop = (struct ccb_accept_tio *) STAILQ_FIRST(&trtp->atios);
5222         if (atiop == NULL) {
5223                 mpt_lprt(mpt, MPT_PRT_WARN,
5224                     "no ATIOs for lun %u- sending back %s\n", lun,
5225                     mpt->tenabled? "QUEUE FULL" : "BUSY");
5226                 mpt_scsi_tgt_status(mpt, NULL, req,
5227                     mpt->tenabled? SCSI_STATUS_QUEUE_FULL : SCSI_STATUS_BUSY,
5228                     NULL);
5229                 return;
5230         }
5231         STAILQ_REMOVE_HEAD(&trtp->atios, sim_links.stqe);
5232         mpt_lprt(mpt, MPT_PRT_DEBUG1,
5233             "Get FREE ATIO %p lun %d\n", atiop, atiop->ccb_h.target_lun);
5234         atiop->ccb_h.ccb_mpt_ptr = mpt;
5235         atiop->ccb_h.status = CAM_CDB_RECVD;
5236         atiop->ccb_h.target_lun = lun;
5237         atiop->sense_len = 0;
5238         atiop->init_id = GET_INITIATOR_INDEX(reply_desc);
5239         atiop->cdb_len = mpt_cdblen(cdbp[0], 16);
5240         memcpy(atiop->cdb_io.cdb_bytes, cdbp, atiop->cdb_len);
5241
5242         /*
5243          * The tag we construct here allows us to find the
5244          * original request that the command came in with.
5245          *
5246          * This way we don't have to depend on anything but the
5247          * tag to find things when CCBs show back up from CAM.
5248          */
5249         atiop->tag_id = MPT_MAKE_TAGID(mpt, req, ioindex);
5250         tgt->tag_id = atiop->tag_id;
5251         if (tag_action) {
5252                 atiop->tag_action = tag_action;
5253                 atiop->ccb_h.flags = CAM_TAG_ACTION_VALID;
5254         }
5255         if (mpt->verbose >= MPT_PRT_DEBUG) {
5256                 int i;
5257                 mpt_prt(mpt, "START_CCB %p for lun %u CDB=<", atiop,
5258                     atiop->ccb_h.target_lun);
5259                 for (i = 0; i < atiop->cdb_len; i++) {
5260                         mpt_prtc(mpt, "%02x%c", cdbp[i] & 0xff,
5261                             (i == (atiop->cdb_len - 1))? '>' : ' ');
5262                 }
5263                 mpt_prtc(mpt, " itag %x tag %x rdesc %x dl=%u\n",
5264                     itag, atiop->tag_id, tgt->reply_desc, tgt->resid);
5265         }
5266
5267         MPTLOCK_2_CAMLOCK(mpt);
5268         xpt_done((union ccb *)atiop);
5269         CAMLOCK_2_MPTLOCK(mpt);
5270 }
5271
5272 static void
5273 mpt_tgt_dump_tgt_state(struct mpt_softc *mpt, request_t *req)
5274 {
5275         mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5276
5277         mpt_prt(mpt, "req %p:%u tgt:rdesc 0x%x resid %u xfrd %u ccb %p treq %p "
5278             "nx %d tag 0x%08x state=%d\n", req, req->serno, tgt->reply_desc,
5279             tgt->resid, tgt->bytes_xfered, tgt->ccb, tgt->req, tgt->nxfers,
5280             tgt->tag_id, tgt->state);
5281 }
5282
5283 static void
5284 mpt_tgt_dump_req_state(struct mpt_softc *mpt, request_t *req)
5285 {
5286         mpt_prt(mpt, "req %p:%u index %u (%x) state %x\n", req, req->serno,
5287             req->index, req->index, req->state);
5288         mpt_tgt_dump_tgt_state(mpt, req);
5289 }
5290
5291 static int
5292 mpt_scsi_tgt_reply_handler(struct mpt_softc *mpt, request_t *req,
5293     uint32_t reply_desc, MSG_DEFAULT_REPLY *reply_frame)
5294 {
5295         int dbg;
5296         union ccb *ccb;
5297         U16 status;
5298
5299         if (reply_frame == NULL) {
5300                 /*
5301                  * Figure out what the state of the command is.
5302                  */
5303                 mpt_tgt_state_t *tgt = MPT_TGT_STATE(mpt, req);
5304
5305 #ifdef  INVARIANTS
5306                 mpt_req_spcl(mpt, req, "turbo scsi_tgt_reply", __LINE__);
5307                 if (tgt->req) {
5308                         mpt_req_not_spcl(mpt, tgt->req,
5309                             "turbo scsi_tgt_reply associated req", __LINE__);
5310                 }
5311 #endif
5312                 switch(tgt->state) {
5313                 case TGT_STATE_LOADED:
5314                         /*
5315                          * This is a new command starting.
5316                          */
5317                         mpt_scsi_tgt_atio(mpt, req, reply_desc);
5318                         break;
5319                 case TGT_STATE_MOVING_DATA:
5320                 {
5321                         uint8_t *sp = NULL, sense[MPT_SENSE_SIZE];
5322
5323                         ccb = tgt->ccb;
5324                         if (tgt->req == NULL) {
5325                                 panic("mpt: turbo target reply with null "
5326                                     "associated request moving data");
5327                                 /* NOTREACHED */
5328                         }
5329                         if (ccb == NULL) {
5330                                 if (tgt->is_local == 0) {
5331                                         panic("mpt: turbo target reply with "
5332                                             "null associated ccb moving data");
5333                                         /* NOTREACHED */
5334                                 }
5335                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5336                                     "TARGET_ASSIST local done\n");
5337                                 TAILQ_REMOVE(&mpt->request_pending_list,
5338                                     tgt->req, links);
5339                                 mpt_free_request(mpt, tgt->req);
5340                                 tgt->req = NULL;
5341                                 mpt_scsi_tgt_status(mpt, NULL, req,
5342                                     0, NULL);
5343                                 return (TRUE);
5344                         }
5345                         tgt->ccb = NULL;
5346                         tgt->nxfers++;
5347                         mpt_req_untimeout(req, mpt_timeout, ccb);
5348                         mpt_lprt(mpt, MPT_PRT_DEBUG,
5349                             "TARGET_ASSIST %p (req %p:%u) done tag 0x%x\n",
5350                             ccb, tgt->req, tgt->req->serno, ccb->csio.tag_id);
5351                         /*
5352                          * Free the Target Assist Request
5353                          */
5354                         KASSERT(tgt->req->ccb == ccb,
5355                             ("tgt->req %p:%u tgt->req->ccb %p", tgt->req,
5356                             tgt->req->serno, tgt->req->ccb));
5357                         TAILQ_REMOVE(&mpt->request_pending_list,
5358                             tgt->req, links);
5359                         mpt_free_request(mpt, tgt->req);
5360                         tgt->req = NULL;
5361
5362                         /*
5363                          * Do we need to send status now? That is, are
5364                          * we done with all our data transfers?
5365                          */
5366                         if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
5367                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5368                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5369                                 KASSERT(ccb->ccb_h.status,
5370                                     ("zero ccb sts at %d\n", __LINE__));
5371                                 tgt->state = TGT_STATE_IN_CAM;
5372                                 if (mpt->outofbeer) {
5373                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5374                                         mpt->outofbeer = 0;
5375                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5376                                 }
5377                                 MPTLOCK_2_CAMLOCK(mpt);
5378                                 xpt_done(ccb);
5379                                 CAMLOCK_2_MPTLOCK(mpt);
5380                                 break;
5381                         }
5382                         /*
5383                          * Otherwise, send status (and sense)
5384                          */
5385                         if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5386                                 sp = sense;
5387                                 memcpy(sp, &ccb->csio.sense_data,
5388                                    min(ccb->csio.sense_len, MPT_SENSE_SIZE));
5389                         }
5390                         mpt_scsi_tgt_status(mpt, ccb, req,
5391                             ccb->csio.scsi_status, sp);
5392                         break;
5393                 }
5394                 case TGT_STATE_SENDING_STATUS:
5395                 case TGT_STATE_MOVING_DATA_AND_STATUS:
5396                 {
5397                         int ioindex;
5398                         ccb = tgt->ccb;
5399
5400                         if (tgt->req == NULL) {
5401                                 panic("mpt: turbo target reply with null "
5402                                     "associated request sending status");
5403                                 /* NOTREACHED */
5404                         }
5405
5406                         if (ccb) {
5407                                 tgt->ccb = NULL;
5408                                 if (tgt->state ==
5409                                     TGT_STATE_MOVING_DATA_AND_STATUS) {
5410                                         tgt->nxfers++;
5411                                 }
5412                                 mpt_req_untimeout(req, mpt_timeout, ccb);
5413                                 if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
5414                                         ccb->ccb_h.status |= CAM_SENT_SENSE;
5415                                 }
5416                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5417                                     "TARGET_STATUS tag %x sts %x flgs %x req "
5418                                     "%p\n", ccb->csio.tag_id, ccb->ccb_h.status,
5419                                     ccb->ccb_h.flags, tgt->req);
5420                                 /*
5421                                  * Free the Target Send Status Request
5422                                  */
5423                                 KASSERT(tgt->req->ccb == ccb,
5424                                     ("tgt->req %p:%u tgt->req->ccb %p",
5425                                     tgt->req, tgt->req->serno, tgt->req->ccb));
5426                                 /*
5427                                  * Notify CAM that we're done
5428                                  */
5429                                 mpt_set_ccb_status(ccb, CAM_REQ_CMP);
5430                                 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
5431                                 KASSERT(ccb->ccb_h.status,
5432                                     ("ZERO ccb sts at %d\n", __LINE__));
5433                                 tgt->ccb = NULL;
5434                         } else {
5435                                 mpt_lprt(mpt, MPT_PRT_DEBUG,
5436                                     "TARGET_STATUS non-CAM for  req %p:%u\n",
5437                                     tgt->req, tgt->req->serno);
5438                         }
5439                         TAILQ_REMOVE(&mpt->request_pending_list,
5440                             tgt->req, links);
5441                         mpt_free_request(mpt, tgt->req);
5442                         tgt->req = NULL;
5443
5444                         /*
5445                          * And re-post the Command Buffer.
5446                          * This will reset the state.
5447                          */
5448                         ioindex = GET_IO_INDEX(reply_desc);
5449                         TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5450                         tgt->is_local = 0;
5451                         mpt_post_target_command(mpt, req, ioindex);
5452
5453                         /*
5454                          * And post a done for anyone who cares
5455                          */
5456                         if (ccb) {
5457                                 if (mpt->outofbeer) {
5458                                         ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
5459                                         mpt->outofbeer = 0;
5460                                         mpt_lprt(mpt, MPT_PRT_DEBUG, "THAWQ\n");
5461                                 }
5462                                 MPTLOCK_2_CAMLOCK(mpt);
5463                                 xpt_done(ccb);
5464                                 CAMLOCK_2_MPTLOCK(mpt);
5465                         }
5466                         break;
5467                 }
5468                 case TGT_STATE_NIL:     /* XXX This Never Happens XXX */
5469                         tgt->state = TGT_STATE_LOADED;
5470                         break;
5471                 default:
5472                         mpt_prt(mpt, "Unknown Target State 0x%x in Context "
5473                             "Reply Function\n", tgt->state);
5474                 }
5475                 return (TRUE);
5476         }
5477
5478         status = le16toh(reply_frame->IOCStatus);
5479         if (status != MPI_IOCSTATUS_SUCCESS) {
5480                 dbg = MPT_PRT_ERROR;
5481         } else {
5482                 dbg = MPT_PRT_DEBUG1;
5483         }
5484
5485         mpt_lprt(mpt, dbg,
5486             "SCSI_TGT REPLY: req=%p:%u reply=%p func=%x IOCstatus 0x%x\n",
5487              req, req->serno, reply_frame, reply_frame->Function, status);
5488
5489         switch (reply_frame->Function) {
5490         case MPI_FUNCTION_TARGET_CMD_BUFFER_POST:
5491         {
5492                 mpt_tgt_state_t *tgt;
5493 #ifdef  INVARIANTS
5494                 mpt_req_spcl(mpt, req, "tgt reply BUFFER POST", __LINE__);
5495 #endif
5496                 if (status != MPI_IOCSTATUS_SUCCESS) {
5497                         /*
5498                          * XXX What to do?
5499                          */
5500                         break;
5501                 }
5502                 tgt = MPT_TGT_STATE(mpt, req);
5503                 KASSERT(tgt->state == TGT_STATE_LOADING,
5504                     ("bad state 0x%x on reply to buffer post\n", tgt->state));
5505                 mpt_assign_serno(mpt, req);
5506                 tgt->state = TGT_STATE_LOADED;
5507                 break;
5508         }
5509         case MPI_FUNCTION_TARGET_ASSIST:
5510 #ifdef  INVARIANTS
5511                 mpt_req_not_spcl(mpt, req, "tgt reply TARGET ASSIST", __LINE__);
5512 #endif
5513                 mpt_prt(mpt, "target assist completion\n");
5514                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5515                 mpt_free_request(mpt, req);
5516                 break;
5517         case MPI_FUNCTION_TARGET_STATUS_SEND:
5518 #ifdef  INVARIANTS
5519                 mpt_req_not_spcl(mpt, req, "tgt reply STATUS SEND", __LINE__);
5520 #endif
5521                 mpt_prt(mpt, "status send completion\n");
5522                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5523                 mpt_free_request(mpt, req);
5524                 break;
5525         case MPI_FUNCTION_TARGET_MODE_ABORT:
5526         {
5527                 PTR_MSG_TARGET_MODE_ABORT_REPLY abtrp =
5528                     (PTR_MSG_TARGET_MODE_ABORT_REPLY) reply_frame;
5529                 PTR_MSG_TARGET_MODE_ABORT abtp =
5530                     (PTR_MSG_TARGET_MODE_ABORT) req->req_vbuf;
5531                 uint32_t cc = GET_IO_INDEX(le32toh(abtp->ReplyWord));
5532 #ifdef  INVARIANTS
5533                 mpt_req_not_spcl(mpt, req, "tgt reply TMODE ABORT", __LINE__);
5534 #endif
5535                 mpt_prt(mpt, "ABORT RX_ID 0x%x Complete; status 0x%x cnt %u\n",
5536                     cc, le16toh(abtrp->IOCStatus), le32toh(abtrp->AbortCount));
5537                 TAILQ_REMOVE(&mpt->request_pending_list, req, links);
5538                 mpt_free_request(mpt, req);
5539                 break;
5540         }
5541         default:
5542                 mpt_prt(mpt, "Unknown Target Address Reply Function code: "
5543                     "0x%x\n", reply_frame->Function);
5544                 break;
5545         }
5546         return (TRUE);
5547 }